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* [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
@ 2009-02-22 11:18 Sitsofe Wheeler
  2009-02-22 12:01 ` Jiri Slaby
  0 siblings, 1 reply; 66+ messages in thread
From: Sitsofe Wheeler @ 2009-02-22 11:18 UTC (permalink / raw)
  To: Jiri Slaby
  Cc: linux-kernel, linux-wireless, ath5k-devel, Nick Kossifidis,
	Luis R. Rodriguez, Bob Copeland

While testing a linux-tip from yesterday, a
BUG kmalloc-4096: Poison overwritten
warning appeared inside dmesg. I'm not aware of what I was doing other
that browsing a few web pages and using ssh in the lead up to it. Output
is attached below:

[ 3666.410818] ath5k phy0: unsupported jumbo
[ 4432.305651] ath5k phy0: unsupported jumbo
[ 4466.022644] totem[4664]: segfault at 5bf7b980 ip b5b39cbb sp b0d5f130 error 6 in libpulse.so.0.4.1[b5afb000+4d000]
[ 4617.353923] totem[5189]: segfault at 4c7a2ee0 ip b59bfdca sp b1c12ec0 error 6 in libpulse.so.0.4.1[b5981000+4d000]
[ 7412.846146] =============================================================================
[ 7412.846159] BUG kmalloc-4096: Poison overwritten
[ 7412.846163] -----------------------------------------------------------------------------
[ 7412.846166] 
[ 7412.846172] INFO: 0xf6438010-0xf6438053. First byte 0x80 instead of 0x6b
[ 7412.846188] INFO: Allocated in dev_alloc_skb+0x21/0x40 age=629 cpu=0 pid=0
[ 7412.846197] INFO: Freed in skb_release_data+0x5e/0x90 age=21 cpu=0 pid=0
[ 7412.846204] INFO: Slab 0xc17a27e0 objects=7 used=5 fp=0xf6438000 flags=0x400020c3
[ 7412.846210] INFO: Object 0xf6438000 @offset=0 fp=0xf643a060
[ 7412.846212] 
[ 7412.846216]   Object 0xf6438000:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.846245]   Object 0xf6438010:  80 00 00 00 ff ff ff ff ff ff 00 30 ab 1a 32 3f ....ÿÿÿÿÿÿ.0«.2?
[ 7412.846273]   Object 0xf6438020:  00 30 ab 1a 32 3f e0 24 59 62 25 b5 01 00 00 00 .0«.2?à$Yb%µ....
[ 7412.846301]   Object 0xf6438030:  64 00 31 00 00 08 57 69 72 65 6c 65 73 73 01 04 d.1...Wireless..
[ 7412.846329]   Object 0xf6438040:  82 84 8b 96 03 01 06 05 04 01 02 00 00 55 fa af .............Uú¯
[ 7412.846357]   Object 0xf6438050:  5d 55 fa 5d 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b ]Uú]kkkkkkkkkkkk
[ 7412.846385]   Object 0xf6438060:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.846412]   Object 0xf6438070:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.846440]   Object 0xf6438080:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.846468]   Object 0xf6438090:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.846495]   Object 0xf64380a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.846523]   Object 0xf64380b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.846551]   Object 0xf64380c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.846578]   Object 0xf64380d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.846606]   Object 0xf64380e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.846633]   Object 0xf64380f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.846661]   Object 0xf6438100:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
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[ 7412.846938]   Object 0xf64381a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.846965]   Object 0xf64381b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
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[ 7412.847020]   Object 0xf64381d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847048]   Object 0xf64381e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
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[ 7412.847091]   Object 0xf6438230:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438240:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
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[ 7412.847091]   Object 0xf64382a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf64382b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf64382c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
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[ 7412.847091]   Object 0xf64382e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf64382f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438300:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438310:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438320:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438330:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438340:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438350:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438360:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438370:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438380:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438390:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf64383a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf64383b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf64383c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf64383d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf64383e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf64383f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438400:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438410:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438420:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438430:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438440:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438450:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438460:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438470:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438480:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438490:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf64384a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf64384b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf64384c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf64384d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf64384e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf64384f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438500:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438510:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438520:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438530:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438540:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438550:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438560:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438570:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438580:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438590:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf64385a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf64385b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf64385c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf64385d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
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[ 7412.847091]   Object 0xf64385f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438600:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438610:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438620:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438630:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438640:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438650:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
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[ 7412.847091]   Object 0xf6438760:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438770:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438780:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 7412.847091]   Object 0xf6438790:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
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[ 7412.847091]  Redzone 0xf6439000:  bb bb bb bb                                     »»»»            
[ 7412.847091]  Padding 0xf6439028:  5a 5a 5a 5a 5a 5a 5a 5a                         ZZZZZZZZ        
[ 7412.847091] Pid: 0, comm: swapper Not tainted 2.6.29-rc5-tip-01971-g83f59cb #64
[ 7412.847091] Call Trace:
[ 7412.847091]  [<c0189294>] print_trailer+0xb4/0xf0
[ 7412.847091]  [<c0189377>] check_bytes_and_report+0xa7/0xd0
[ 7412.847091]  [<c018959e>] check_object+0x1ae/0x1f0
[ 7412.847091]  [<c018b2e2>] __slab_alloc+0x4a2/0x550
[ 7412.847091]  [<c011f6f2>] ? kmemcheck_mark_uninitialized+0x12/0x20
[ 7412.847091]  [<c018c337>] __kmalloc_track_caller+0x137/0x140
[ 7412.847091]  [<c038e951>] ? dev_alloc_skb+0x21/0x40
[ 7412.847091]  [<c038e951>] ? dev_alloc_skb+0x21/0x40
[ 7412.847091]  [<c038e2ce>] __alloc_skb+0x4e/0x100
[ 7412.847091]  [<c038e951>] dev_alloc_skb+0x21/0x40
[ 7412.847091]  [<c02eb858>] ath5k_rx_skb_alloc+0x28/0x1c0
[ 7412.847091]  [<c040fbde>] ? _spin_lock+0x3e/0x50
[ 7412.847091]  [<c02ed12d>] ath5k_tasklet_rx+0x15d/0x700
[ 7412.847091]  [<c014b62b>] ? trace_hardirqs_off+0xb/0x10
[ 7412.847091]  [<c04100ac>] ? _spin_unlock_irqrestore+0x3c/0x60
[ 7412.847091]  [<c02e3edb>] ? ath5k_hw_get_isr+0x6b/0x3d0
[ 7412.847091]  [<c02e4267>] ? ath5k_hw_is_intr_pending+0x27/0x60
[ 7412.847091]  [<c02eddc3>] ? ath5k_intr+0x103/0x310
[ 7412.847091]  [<c012f984>] tasklet_action+0x44/0x90
[ 7412.847091]  [<c012fb28>] __do_softirq+0x68/0x110
[ 7412.847091]  [<c040faf2>] ? _spin_unlock+0x22/0x30
[ 7412.847091]  [<c015760d>] ? handle_fasteoi_irq+0x9d/0xe0
[ 7412.847091]  [<c012fc25>] do_softirq+0x55/0x60
[ 7412.847091]  [<c012fd4c>] irq_exit+0x6c/0x80
[ 7412.847091]  [<c04104d7>] do_IRQ+0x47/0x90
[ 7412.847091]  [<c0103875>] common_interrupt+0x35/0x3c
[ 7412.847091]  [<c028040c>] ? acpi_idle_enter_bm+0x1ec/0x21d
[ 7412.847091]  [<c035bdac>] cpuidle_idle_call+0x6c/0xc0
[ 7412.847091]  [<c0102041>] cpu_idle+0x81/0xa0
[ 7412.847091]  [<c04045bd>] rest_init+0x4d/0x60
[ 7412.847091] FIX kmalloc-4096: Restoring 0xf6438010-0xf6438053=0x6b
[ 7412.847091] 
[ 7412.847091] FIX kmalloc-4096: Marking all objects used
[ 7435.711659] ath5k phy0: unsupported jumbo
[ 8125.567136] ath5k phy0: noise floor calibration timeout (2417MHz)

-- 
Sitsofe | http://sucs.org/~sits/

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-22 11:18 [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc) Sitsofe Wheeler
@ 2009-02-22 12:01 ` Jiri Slaby
  2009-02-22 12:20   ` Sitsofe Wheeler
  0 siblings, 1 reply; 66+ messages in thread
From: Jiri Slaby @ 2009-02-22 12:01 UTC (permalink / raw)
  To: Sitsofe Wheeler
  Cc: linux-kernel, linux-wireless, ath5k-devel, Nick Kossifidis,
	Luis R. Rodriguez, Bob Copeland

On 22.2.2009 12:18, Sitsofe Wheeler wrote:
> While testing a linux-tip from yesterday, a
> BUG kmalloc-4096: Poison overwritten
> warning appeared inside dmesg. I'm not aware of what I was doing other
> that browsing a few web pages and using ssh in the lead up to it. Output
> is attached below:
>
> [ 3666.410818] ath5k phy0: unsupported jumbo
> [ 4432.305651] ath5k phy0: unsupported jumbo
> [ 4466.022644] totem[4664]: segfault at 5bf7b980 ip b5b39cbb sp b0d5f130 error 6 in libpulse.so.0.4.1[b5afb000+4d000]
> [ 4617.353923] totem[5189]: segfault at 4c7a2ee0 ip b59bfdca sp b1c12ec0 error 6 in libpulse.so.0.4.1[b5981000+4d000]
> [ 7412.846146] =============================================================================
> [ 7412.846159] BUG kmalloc-4096: Poison overwritten
> [ 7412.846163] -----------------------------------------------------------------------------
> [ 7412.846166]
> [ 7412.846172] INFO: 0xf6438010-0xf6438053. First byte 0x80 instead of 0x6b
> [ 7412.846188] INFO: Allocated in dev_alloc_skb+0x21/0x40 age=629 cpu=0 pid=0
> [ 7412.846197] INFO: Freed in skb_release_data+0x5e/0x90 age=21 cpu=0 pid=0
> [ 7412.846204] INFO: Slab 0xc17a27e0 objects=7 used=5 fp=0xf6438000 flags=0x400020c3
> [ 7412.846210] INFO: Object 0xf6438000 @offset=0 fp=0xf643a060
> [ 7412.846212]
> [ 7412.846216]   Object 0xf6438000:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [ 7412.846245]   Object 0xf6438010:  80 00 00 00 ff ff ff ff ff ff 00 30 ab 1a 32 3f ....ÿÿÿÿÿÿ.0«.2?

Hmm, beacon written after the memory was freed.

> [ 7412.846273]   Object 0xf6438020:  00 30 ab 1a 32 3f e0 24 59 62 25 b5 01 00 00 00 .0«.2?à$Yb%µ....
> [ 7412.846301]   Object 0xf6438030:  64 00 31 00 00 08 57 69 72 65 6c 65 73 73 01 04 d.1...Wireless..
> [ 7412.846329]   Object 0xf6438040:  82 84 8b 96 03 01 06 05 04 01 02 00 00 55 fa af .............Uú¯
> [ 7412.846357]   Object 0xf6438050:  5d 55 fa 5d 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b ]Uú]kkkkkkkkkkkk
> [ 7412.846385]   Object 0xf6438060:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk

...

The unsupported jumbo message might be a clue. When we jump to the next: 
label, the buffer is at the end of the list in software, while in 
hardware it isn't. In theory, we might hit the bug with rx buffers 
exhaustion, because the test (bf_last == bf) doesn't work as expected then.

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-22 12:01 ` Jiri Slaby
@ 2009-02-22 12:20   ` Sitsofe Wheeler
  2009-02-22 12:47     ` Jiri Slaby
  2009-02-22 14:47     ` Frederic Weisbecker
  0 siblings, 2 replies; 66+ messages in thread
From: Sitsofe Wheeler @ 2009-02-22 12:20 UTC (permalink / raw)
  To: Jiri Slaby
  Cc: linux-kernel, linux-wireless, ath5k-devel, Nick Kossifidis,
	Luis R. Rodriguez, Bob Copeland

On Sun, Feb 22, 2009 at 01:01:21PM +0100, Jiri Slaby wrote:
> The unsupported jumbo message might be a clue. When we jump to the next: 
> label, the buffer is at the end of the list in software, while in 
> hardware it isn't. In theory, we might hit the bug with rx buffers 
> exhaustion, because the test (bf_last == bf) doesn't work as expected then.

This seems to be happening somewhat regularly now - I've got a small
collections of the warnings (I'll include them below in case they are
any help):

[ 7435.711659] ath5k phy0: unsupported jumbo
[ 8125.567136] ath5k phy0: noise floor calibration timeout (2417MHz)
[ 9596.212322] ath5k phy0: unsupported jumbo
[10697.497598] ath5k phy0: unsupported jumbo
[11207.740975] =============================================================================
[11207.740986] BUG kmalloc-4096: Poison overwritten
[11207.740991] -----------------------------------------------------------------------------
[11207.740994] 
[11207.740999] INFO: 0xd7060010-0xd7060053. First byte 0x80 instead of 0x6b
[11207.741014] INFO: Allocated in dev_alloc_skb+0x21/0x40 age=4990 cpu=0 pid=0
[11207.741023] INFO: Freed in skb_release_data+0x5e/0x90 age=893 cpu=0 pid=508
[11207.741030] INFO: Slab 0xc133dd80 objects=7 used=5 fp=0xd7060000 flags=0x400020c3
[11207.741036] INFO: Object 0xd7060000 @offset=0 fp=0xd70640c0
[11207.741038] 
[11207.741042]   Object 0xd7060000:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741071]   Object 0xd7060010:  80 00 00 00 ff ff ff ff ff ff 00 30 ab 1a 32 3f ....ÿÿÿÿÿÿ.0«.2?
[11207.741100]   Object 0xd7060020:  00 30 ab 1a 32 3f b0 69 4d 92 49 97 02 00 00 00 .0«.2?°iM.I.....
[11207.741128]   Object 0xd7060030:  64 00 31 00 00 08 57 69 72 65 6c 65 73 73 01 04 d.1...Wireless..
[11207.741156]   Object 0xd7060040:  82 84 8b 96 03 01 06 05 04 01 02 00 00 81 bd fb ..............½û
[11207.741184]   Object 0xd7060050:  ba 81 bd ba 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b º.½ºkkkkkkkkkkkk
[11207.741212]   Object 0xd7060060:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741240]   Object 0xd7060070:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741268]   Object 0xd7060080:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060090:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70600a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70600b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70600c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70600d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70600e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70600f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060100:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060110:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060120:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060130:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060140:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060150:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060160:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060170:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060180:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060190:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70601a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70601b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70601c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70601d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70601e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70601f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060200:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060210:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060220:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060230:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060240:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060250:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060260:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060270:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060280:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060290:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70602a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70602b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70602c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70602d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70602e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70602f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060300:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060310:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060320:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060330:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060340:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060350:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060360:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060370:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060380:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060390:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70603a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70603b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70603c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70603d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70603e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70603f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060400:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060410:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060420:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060430:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060440:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060450:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060460:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060470:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060480:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060490:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70604a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70604b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70604c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70604d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70604e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd70604f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060500:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060510:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060520:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060530:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
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[11207.741273]   Object 0xd7060d70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060d80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060d90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060da0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060db0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060dc0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060dd0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060de0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060df0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060e00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060e10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060e20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060e30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060e40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060e50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060e60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060e70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060e80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060e90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060ea0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060eb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060ec0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060ed0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060ee0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060ef0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060f00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060f10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060f20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060f30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060f40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060f50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060f60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060f70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060f80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060f90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060fa0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060fb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060fc0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060fd0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060fe0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[11207.741273]   Object 0xd7060ff0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 kkkkkkkkkkkkkkk¥
[11207.741273]  Redzone 0xd7061000:  bb bb bb bb                                     »»»»            
[11207.741273]  Padding 0xd7061028:  5a 5a 5a 5a 5a 5a 5a 5a                         ZZZZZZZZ        
[11207.741273] Pid: 4502, comm: top Not tainted 2.6.29-rc5-tip-01971-g83f59cb #64
[11207.741273] Call Trace:
[11207.741273]  [<c0189294>] print_trailer+0xb4/0xf0
[11207.741273]  [<c0189377>] check_bytes_and_report+0xa7/0xd0
[11207.741273]  [<c018959e>] check_object+0x1ae/0x1f0
[11207.741273]  [<c01a674a>] ? seq_read+0x2a/0x350
[11207.741273]  [<c018b2e2>] __slab_alloc+0x4a2/0x550
[11207.741273]  [<c018b498>] kmem_cache_alloc+0x108/0x110
[11207.741273]  [<c01a69a8>] ? seq_read+0x288/0x350
[11207.741273]  [<c01a69a8>] ? seq_read+0x288/0x350
[11207.741273]  [<c01a69a8>] seq_read+0x288/0x350
[11207.741273]  [<c0216114>] ? security_file_permission+0x14/0x20
[11207.741273]  [<c018efac>] ? rw_verify_area+0x5c/0xc0
[11207.741273]  [<c018d1c1>] ? do_sys_open+0xc1/0xe0
[11207.741273]  [<c018d1c1>] ? do_sys_open+0xc1/0xe0
[11207.741273]  [<c018f0a5>] vfs_read+0x95/0x120
[11207.741273]  [<c01a6720>] ? seq_read+0x0/0x350
[11207.741273]  [<c018f602>] sys_read+0x42/0x70
[11207.741273]  [<c01031de>] sysenter_do_call+0x12/0x35
[11207.741273] FIX kmalloc-4096: Restoring 0xd7060010-0xd7060053=0x6b
[11207.741273] 
[11207.741273] FIX kmalloc-4096: Marking all objects used
[11938.863425] ath5k phy0: unsupported jumbo
[13496.389176] ath5k phy0: unsupported jumbo
[14159.078009] =============================================================================
[14159.078022] BUG kmalloc-4096: Poison overwritten
[14159.078026] -----------------------------------------------------------------------------
[14159.078030] 
[14159.078035] INFO: 0xd70630a0-0xd706312f. First byte 0x8 instead of 0x6b
[14159.078050] INFO: Allocated in dev_alloc_skb+0x21/0x40 age=1819 cpu=0 pid=0
[14159.078059] INFO: Freed in skb_release_data+0x5e/0x90 age=180 cpu=0 pid=508
[14159.078066] INFO: Slab 0xc133dd80 objects=7 used=4 fp=0xd7063090 flags=0x400020c3
[14159.078072] INFO: Object 0xd7063090 @offset=12432 fp=0xd70650f0
[14159.078075] 
[14159.078078] Bytes b4 0xd7063080:  00 00 00 00 5e 78 d3 00 5a 5a 5a 5a 5a 5a 5a 5a ....^xÓ.ZZZZZZZZ
[14159.078108]   Object 0xd7063090:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078136]   Object 0xd70630a0:  08 42 75 00 00 15 af b6 12 07 00 30 ab 1a 32 3f .Bu...¯¶...0«.2?
[14159.078164]   Object 0xd70630b0:  00 c0 49 e7 36 ce 00 9f 95 5c be 00 aa aa 03 00 .ÀIç6Î...\¾.ªª..
[14159.078192]   Object 0xd70630c0:  00 00 08 00 45 12 00 64 4d f5 40 00 2f 06 a8 aa ....E..dMõ@./.¨ª
[14159.078220]   Object 0xd70630d0:  89 2c 0a 01 c0 a8 01 0d 00 16 ad b3 ac fe 85 37 .,..À¨....­³¬þ.7
[14159.078248]   Object 0xd70630e0:  21 5c 27 da 80 18 00 78 6c 22 00 00 01 01 08 0a !\'Ú...xl"......
[14159.078276]   Object 0xd70630f0:  9a 61 cc a5 00 d3 78 36 f7 bb 70 75 af 33 b7 28 .aÌ¥.Óx6÷»pu¯3·(
[14159.078303]   Object 0xd7063100:  d0 ad 85 ee 77 c1 4e fd 10 61 a8 af 42 32 d8 21 Э.îwÁNý.a¨¯B2Ø!
[14159.078331]   Object 0xd7063110:  50 57 51 66 c8 76 c1 f3 dc e4 71 69 c1 53 b7 61 PWQfÈvÁóÜäqiÁS·a
[14159.078359]   Object 0xd7063120:  e2 d8 b5 40 c1 ed 9f 40 51 27 f7 c9 07 c3 57 70 âص@Áí.@Q'÷É.ÃWp
[14159.078386]   Object 0xd7063130:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078414]   Object 0xd7063140:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078442]   Object 0xd7063150:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078469]   Object 0xd7063160:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078497]   Object 0xd7063170:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078525]   Object 0xd7063180:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078552]   Object 0xd7063190:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078580]   Object 0xd70631a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078608]   Object 0xd70631b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078635]   Object 0xd70631c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078663]   Object 0xd70631d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078691]   Object 0xd70631e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078718]   Object 0xd70631f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078746]   Object 0xd7063200:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078774]   Object 0xd7063210:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078801]   Object 0xd7063220:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078829]   Object 0xd7063230:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078857]   Object 0xd7063240:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078884]   Object 0xd7063250:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078912]   Object 0xd7063260:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078939]   Object 0xd7063270:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063280:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063290:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd70632a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd70632b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd70632c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd70632d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd70632e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd70632f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063300:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063310:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063320:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063330:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063340:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063350:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063360:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063370:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063380:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063390:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd70633a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd70633b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd70633c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd70633d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd70633e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd70633f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063400:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063410:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063420:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063430:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063440:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063450:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063460:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063470:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063480:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063490:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd70634a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd70634b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd70634c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd70634d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd70634e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd70634f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063500:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063510:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063520:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063530:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063540:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063550:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063560:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
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[14159.078955]   Object 0xd7063dc0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063dd0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063de0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063df0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063e00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063e10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063e20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063e30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063e40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063e50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063e60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063e70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063e80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063e90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063ea0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063eb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063ec0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063ed0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063ee0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063ef0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063f00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063f10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063f20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063f30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063f40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063f50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063f60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063f70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063f80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063f90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063fa0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063fb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063fc0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063fd0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063fe0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7063ff0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7064000:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7064010:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7064020:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7064030:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7064040:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7064050:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7064060:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7064070:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14159.078955]   Object 0xd7064080:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 kkkkkkkkkkkkkkk¥
[14159.078955]  Redzone 0xd7064090:  bb bb bb bb                                     »»»»            
[14159.078955]  Padding 0xd70640b8:  5a 5a 5a 5a 5a 5a 5a 5a                         ZZZZZZZZ        
[14159.078955] Pid: 0, comm: swapper Not tainted 2.6.29-rc5-tip-01971-g83f59cb #64
[14159.078955] Call Trace:
[14159.078955]  [<c0189294>] print_trailer+0xb4/0xf0
[14159.078955]  [<c0189377>] check_bytes_and_report+0xa7/0xd0
[14159.078955]  [<c018959e>] check_object+0x1ae/0x1f0
[14159.078955]  [<c018b2e2>] __slab_alloc+0x4a2/0x550
[14159.078955]  [<c011f6f2>] ? kmemcheck_mark_uninitialized+0x12/0x20
[14159.078955]  [<c018c337>] __kmalloc_track_caller+0x137/0x140
[14159.078955]  [<c038e951>] ? dev_alloc_skb+0x21/0x40
[14159.078955]  [<c038e951>] ? dev_alloc_skb+0x21/0x40
[14159.078955]  [<c038e2ce>] __alloc_skb+0x4e/0x100
[14159.078955]  [<c038e951>] dev_alloc_skb+0x21/0x40
[14159.078955]  [<c02eb858>] ath5k_rx_skb_alloc+0x28/0x1c0
[14159.078955]  [<c040fbde>] ? _spin_lock+0x3e/0x50
[14159.078955]  [<c02ed12d>] ath5k_tasklet_rx+0x15d/0x700
[14159.078955]  [<c014b62b>] ? trace_hardirqs_off+0xb/0x10
[14159.078955]  [<c04100ac>] ? _spin_unlock_irqrestore+0x3c/0x60
[14159.078955]  [<c02e3edb>] ? ath5k_hw_get_isr+0x6b/0x3d0
[14159.078955]  [<c02e4267>] ? ath5k_hw_is_intr_pending+0x27/0x60
[14159.078955]  [<c02eddc3>] ? ath5k_intr+0x103/0x310
[14159.078955]  [<c012f984>] tasklet_action+0x44/0x90
[14159.078955]  [<c012fb28>] __do_softirq+0x68/0x110
[14159.078955]  [<c040faf2>] ? _spin_unlock+0x22/0x30
[14159.078955]  [<c015760d>] ? handle_fasteoi_irq+0x9d/0xe0
[14159.078955]  [<c012fc25>] do_softirq+0x55/0x60
[14159.078955]  [<c012fd4c>] irq_exit+0x6c/0x80
[14159.078955]  [<c04104d7>] do_IRQ+0x47/0x90
[14159.078955]  [<c0103875>] common_interrupt+0x35/0x3c
[14159.078955]  [<c028040c>] ? acpi_idle_enter_bm+0x1ec/0x21d
[14159.078955]  [<c035bdac>] cpuidle_idle_call+0x6c/0xc0
[14159.078955]  [<c0102041>] cpu_idle+0x81/0xa0
[14159.078955]  [<c04045bd>] rest_init+0x4d/0x60
[14159.078955] FIX kmalloc-4096: Restoring 0xd70630a0-0xd706312f=0x6b
[14159.078955] 
[14159.078955] FIX kmalloc-4096: Marking all objects used

-- 
Sitsofe | http://sucs.org/~sits/

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-22 12:20   ` Sitsofe Wheeler
@ 2009-02-22 12:47     ` Jiri Slaby
  2009-02-22 14:47     ` Frederic Weisbecker
  1 sibling, 0 replies; 66+ messages in thread
From: Jiri Slaby @ 2009-02-22 12:47 UTC (permalink / raw)
  To: Sitsofe Wheeler
  Cc: linux-kernel, linux-wireless, ath5k-devel, Nick Kossifidis,
	Luis R. Rodriguez, Bob Copeland

On 22.2.2009 13:20, Sitsofe Wheeler wrote:
> On Sun, Feb 22, 2009 at 01:01:21PM +0100, Jiri Slaby wrote:
>> The unsupported jumbo message might be a clue. When we jump to the next:
>> label, the buffer is at the end of the list in software, while in
>> hardware it isn't. In theory, we might hit the bug with rx buffers
>> exhaustion, because the test (bf_last == bf) doesn't work as expected then.
>
> This seems to be happening somewhat regularly now - I've got a small
> collections of the warnings (I'll include them below in case they are
> any help):
[...]
> [11207.741042]   Object 0xd7060000:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741071]   Object 0xd7060010:  80 00 00 00 ff ff ff ff ff ff 00 30 ab 1a 32 3f ....ÿÿÿÿÿÿ.0«.2?

All of them are almost the same scenario, the last one was data not 
beacon, but it's irrelevant. And previously I was wrong, we move the 
buffer to the end even on hardware side. Thanks so far, I personally see 
no reason for this to happen yet.

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-22 12:20   ` Sitsofe Wheeler
  2009-02-22 12:47     ` Jiri Slaby
@ 2009-02-22 14:47     ` Frederic Weisbecker
  2009-02-22 17:02       ` Sitsofe Wheeler
  2009-02-22 20:17       ` Bob Copeland
  1 sibling, 2 replies; 66+ messages in thread
From: Frederic Weisbecker @ 2009-02-22 14:47 UTC (permalink / raw)
  To: Sitsofe Wheeler
  Cc: Jiri Slaby, linux-kernel, linux-wireless, ath5k-devel,
	Nick Kossifidis, Luis R. Rodriguez, Bob Copeland

On Sun, Feb 22, 2009 at 12:20:36PM +0000, Sitsofe Wheeler wrote:
> On Sun, Feb 22, 2009 at 01:01:21PM +0100, Jiri Slaby wrote:
> > The unsupported jumbo message might be a clue. When we jump to the next: 
> > label, the buffer is at the end of the list in software, while in 
> > hardware it isn't. In theory, we might hit the bug with rx buffers 
> > exhaustion, because the test (bf_last == bf) doesn't work as expected then.
> 
> This seems to be happening somewhat regularly now - I've got a small
> collections of the warnings (I'll include them below in case they are
> any help):
> 
> [ 7435.711659] ath5k phy0: unsupported jumbo
> [ 8125.567136] ath5k phy0: noise floor calibration timeout (2417MHz)
> [ 9596.212322] ath5k phy0: unsupported jumbo
> [10697.497598] ath5k phy0: unsupported jumbo
> [11207.740975] =============================================================================
> [11207.740986] BUG kmalloc-4096: Poison overwritten
> [11207.740991] -----------------------------------------------------------------------------
> [11207.740994] 
> [11207.740999] INFO: 0xd7060010-0xd7060053. First byte 0x80 instead of 0x6b
> [11207.741014] INFO: Allocated in dev_alloc_skb+0x21/0x40 age=4990 cpu=0 pid=0
> [11207.741023] INFO: Freed in skb_release_data+0x5e/0x90 age=893 cpu=0 pid=508
> [11207.741030] INFO: Slab 0xc133dd80 objects=7 used=5 fp=0xd7060000 flags=0x400020c3
> [11207.741036] INFO: Object 0xd7060000 @offset=0 fp=0xd70640c0
> [11207.741038] 
> [11207.741042]   Object 0xd7060000:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741071]   Object 0xd7060010:  80 00 00 00 ff ff ff ff ff ff 00 30 ab 1a 32 3f ....ÿÿÿÿÿÿ.0«.2?
> [11207.741100]   Object 0xd7060020:  00 30 ab 1a 32 3f b0 69 4d 92 49 97 02 00 00 00 .0«.2?°iM.I.....
> [11207.741128]   Object 0xd7060030:  64 00 31 00 00 08 57 69 72 65 6c 65 73 73 01 04 d.1...Wireless..
> [11207.741156]   Object 0xd7060040:  82 84 8b 96 03 01 06 05 04 01 02 00 00 81 bd fb ..............½û
> [11207.741184]   Object 0xd7060050:  ba 81 bd ba 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b º.½ºkkkkkkkkkkkk
> [11207.741212]   Object 0xd7060060:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741240]   Object 0xd7060070:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741268]   Object 0xd7060080:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060090:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd70600a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd70600b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd70600c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd70600d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd70600e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd70600f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060100:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060110:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060120:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060130:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060140:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060150:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060160:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060170:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060180:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060190:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd70601a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd70601b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd70601c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd70601d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd70601e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd70601f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060200:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060210:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060220:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060230:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060240:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060250:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060260:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060270:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060280:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060290:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd70602a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd70602b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd70602c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd70602d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd70602e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd70602f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060300:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060310:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
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> [11207.741273]   Object 0xd7060b40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060b50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060b60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060b70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060b80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060b90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060ba0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060bb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060bc0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060bd0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060be0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060bf0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060c00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060c10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060c20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060c30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060c40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060c50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060c60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060c70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060c80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060c90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060ca0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060cb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060cc0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060cd0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060ce0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060cf0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060d00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060d10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060d20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060d30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060d40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060d50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060d60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060d70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060d80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060d90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060da0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060db0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060dc0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060dd0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060de0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060df0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060e00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060e10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060e20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060e30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060e40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060e50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060e60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060e70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060e80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060e90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060ea0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060eb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060ec0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060ed0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060ee0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060ef0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060f00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060f10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060f20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060f30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060f40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060f50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060f60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060f70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060f80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060f90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060fa0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060fb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060fc0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060fd0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060fe0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [11207.741273]   Object 0xd7060ff0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 kkkkkkkkkkkkkkk¥
> [11207.741273]  Redzone 0xd7061000:  bb bb bb bb                                     »»»»            
> [11207.741273]  Padding 0xd7061028:  5a 5a 5a 5a 5a 5a 5a 5a                         ZZZZZZZZ        
> [11207.741273] Pid: 4502, comm: top Not tainted 2.6.29-rc5-tip-01971-g83f59cb #64
> [11207.741273] Call Trace:
> [11207.741273]  [<c0189294>] print_trailer+0xb4/0xf0
> [11207.741273]  [<c0189377>] check_bytes_and_report+0xa7/0xd0
> [11207.741273]  [<c018959e>] check_object+0x1ae/0x1f0
> [11207.741273]  [<c01a674a>] ? seq_read+0x2a/0x350
> [11207.741273]  [<c018b2e2>] __slab_alloc+0x4a2/0x550
> [11207.741273]  [<c018b498>] kmem_cache_alloc+0x108/0x110
> [11207.741273]  [<c01a69a8>] ? seq_read+0x288/0x350
> [11207.741273]  [<c01a69a8>] ? seq_read+0x288/0x350
> [11207.741273]  [<c01a69a8>] seq_read+0x288/0x350
> [11207.741273]  [<c0216114>] ? security_file_permission+0x14/0x20
> [11207.741273]  [<c018efac>] ? rw_verify_area+0x5c/0xc0
> [11207.741273]  [<c018d1c1>] ? do_sys_open+0xc1/0xe0
> [11207.741273]  [<c018d1c1>] ? do_sys_open+0xc1/0xe0
> [11207.741273]  [<c018f0a5>] vfs_read+0x95/0x120
> [11207.741273]  [<c01a6720>] ? seq_read+0x0/0x350
> [11207.741273]  [<c018f602>] sys_read+0x42/0x70
> [11207.741273]  [<c01031de>] sysenter_do_call+0x12/0x35
> [11207.741273] FIX kmalloc-4096: Restoring 0xd7060010-0xd7060053=0x6b
> [11207.741273] 
> [11207.741273] FIX kmalloc-4096: Marking all objects used
> [11938.863425] ath5k phy0: unsupported jumbo
> [13496.389176] ath5k phy0: unsupported jumbo
> [14159.078009] =============================================================================
> [14159.078022] BUG kmalloc-4096: Poison overwritten
> [14159.078026] -----------------------------------------------------------------------------
> [14159.078030] 
> [14159.078035] INFO: 0xd70630a0-0xd706312f. First byte 0x8 instead of 0x6b
> [14159.078050] INFO: Allocated in dev_alloc_skb+0x21/0x40 age=1819 cpu=0 pid=0
> [14159.078059] INFO: Freed in skb_release_data+0x5e/0x90 age=180 cpu=0 pid=508
> [14159.078066] INFO: Slab 0xc133dd80 objects=7 used=4 fp=0xd7063090 flags=0x400020c3
> [14159.078072] INFO: Object 0xd7063090 @offset=12432 fp=0xd70650f0
> [14159.078075] 
> [14159.078078] Bytes b4 0xd7063080:  00 00 00 00 5e 78 d3 00 5a 5a 5a 5a 5a 5a 5a 5a ....^xÓ.ZZZZZZZZ
> [14159.078108]   Object 0xd7063090:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078136]   Object 0xd70630a0:  08 42 75 00 00 15 af b6 12 07 00 30 ab 1a 32 3f .Bu...¯¶...0«.2?
> [14159.078164]   Object 0xd70630b0:  00 c0 49 e7 36 ce 00 9f 95 5c be 00 aa aa 03 00 .ÀIç6Î...\¾.ªª..
> [14159.078192]   Object 0xd70630c0:  00 00 08 00 45 12 00 64 4d f5 40 00 2f 06 a8 aa ....E..dMõ@./.¨ª
> [14159.078220]   Object 0xd70630d0:  89 2c 0a 01 c0 a8 01 0d 00 16 ad b3 ac fe 85 37 .,..À¨....­³¬þ.7
> [14159.078248]   Object 0xd70630e0:  21 5c 27 da 80 18 00 78 6c 22 00 00 01 01 08 0a !\'Ú...xl"......
> [14159.078276]   Object 0xd70630f0:  9a 61 cc a5 00 d3 78 36 f7 bb 70 75 af 33 b7 28 .aÌ¥.Óx6÷»pu¯3·(
> [14159.078303]   Object 0xd7063100:  d0 ad 85 ee 77 c1 4e fd 10 61 a8 af 42 32 d8 21 Э.îwÁNý.a¨¯B2Ø!
> [14159.078331]   Object 0xd7063110:  50 57 51 66 c8 76 c1 f3 dc e4 71 69 c1 53 b7 61 PWQfÈvÁóÜäqiÁS·a
> [14159.078359]   Object 0xd7063120:  e2 d8 b5 40 c1 ed 9f 40 51 27 f7 c9 07 c3 57 70 âص@Áí.@Q'÷É.ÃWp
> [14159.078386]   Object 0xd7063130:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078414]   Object 0xd7063140:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078442]   Object 0xd7063150:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078469]   Object 0xd7063160:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078497]   Object 0xd7063170:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078525]   Object 0xd7063180:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078552]   Object 0xd7063190:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078580]   Object 0xd70631a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078608]   Object 0xd70631b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078635]   Object 0xd70631c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078663]   Object 0xd70631d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078691]   Object 0xd70631e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078718]   Object 0xd70631f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078746]   Object 0xd7063200:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078774]   Object 0xd7063210:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078801]   Object 0xd7063220:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078829]   Object 0xd7063230:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078857]   Object 0xd7063240:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078884]   Object 0xd7063250:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078912]   Object 0xd7063260:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078939]   Object 0xd7063270:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063280:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063290:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd70632a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd70632b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd70632c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd70632d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd70632e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
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> [14159.078955]   Object 0xd7063b20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063b30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063b40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063b50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063b60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063b70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063b80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063b90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063ba0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063bb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063bc0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063bd0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063be0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063bf0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063c00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063c10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063c20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063c30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063c40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063c50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063c60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063c70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063c80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063c90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063ca0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063cb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063cc0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063cd0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063ce0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063cf0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063d00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063d10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063d20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063d30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063d40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063d50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063d60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063d70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063d80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063d90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063da0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063db0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063dc0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063dd0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063de0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063df0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063e00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063e10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063e20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063e30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063e40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063e50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063e60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063e70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063e80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063e90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063ea0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063eb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063ec0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063ed0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063ee0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063ef0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063f00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063f10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063f20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063f30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063f40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063f50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063f60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063f70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063f80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063f90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063fa0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063fb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063fc0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063fd0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063fe0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7063ff0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7064000:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7064010:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7064020:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7064030:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7064040:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7064050:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7064060:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7064070:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [14159.078955]   Object 0xd7064080:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 kkkkkkkkkkkkkkk¥
> [14159.078955]  Redzone 0xd7064090:  bb bb bb bb                                     »»»»            
> [14159.078955]  Padding 0xd70640b8:  5a 5a 5a 5a 5a 5a 5a 5a                         ZZZZZZZZ        
> [14159.078955] Pid: 0, comm: swapper Not tainted 2.6.29-rc5-tip-01971-g83f59cb #64
> [14159.078955] Call Trace:
> [14159.078955]  [<c0189294>] print_trailer+0xb4/0xf0
> [14159.078955]  [<c0189377>] check_bytes_and_report+0xa7/0xd0
> [14159.078955]  [<c018959e>] check_object+0x1ae/0x1f0
> [14159.078955]  [<c018b2e2>] __slab_alloc+0x4a2/0x550
> [14159.078955]  [<c011f6f2>] ? kmemcheck_mark_uninitialized+0x12/0x20
> [14159.078955]  [<c018c337>] __kmalloc_track_caller+0x137/0x140
> [14159.078955]  [<c038e951>] ? dev_alloc_skb+0x21/0x40
> [14159.078955]  [<c038e951>] ? dev_alloc_skb+0x21/0x40
> [14159.078955]  [<c038e2ce>] __alloc_skb+0x4e/0x100
> [14159.078955]  [<c038e951>] dev_alloc_skb+0x21/0x40
> [14159.078955]  [<c02eb858>] ath5k_rx_skb_alloc+0x28/0x1c0
> [14159.078955]  [<c040fbde>] ? _spin_lock+0x3e/0x50
> [14159.078955]  [<c02ed12d>] ath5k_tasklet_rx+0x15d/0x700


Looks like it happens with ath5k driver.
Well, I have an atheros card, so I'm testing it.


> [14159.078955]  [<c014b62b>] ? trace_hardirqs_off+0xb/0x10
> [14159.078955]  [<c04100ac>] ? _spin_unlock_irqrestore+0x3c/0x60
> [14159.078955]  [<c02e3edb>] ? ath5k_hw_get_isr+0x6b/0x3d0
> [14159.078955]  [<c02e4267>] ? ath5k_hw_is_intr_pending+0x27/0x60
> [14159.078955]  [<c02eddc3>] ? ath5k_intr+0x103/0x310
> [14159.078955]  [<c012f984>] tasklet_action+0x44/0x90
> [14159.078955]  [<c012fb28>] __do_softirq+0x68/0x110
> [14159.078955]  [<c040faf2>] ? _spin_unlock+0x22/0x30
> [14159.078955]  [<c015760d>] ? handle_fasteoi_irq+0x9d/0xe0
> [14159.078955]  [<c012fc25>] do_softirq+0x55/0x60
> [14159.078955]  [<c012fd4c>] irq_exit+0x6c/0x80
> [14159.078955]  [<c04104d7>] do_IRQ+0x47/0x90
> [14159.078955]  [<c0103875>] common_interrupt+0x35/0x3c
> [14159.078955]  [<c028040c>] ? acpi_idle_enter_bm+0x1ec/0x21d
> [14159.078955]  [<c035bdac>] cpuidle_idle_call+0x6c/0xc0
> [14159.078955]  [<c0102041>] cpu_idle+0x81/0xa0
> [14159.078955]  [<c04045bd>] rest_init+0x4d/0x60
> [14159.078955] FIX kmalloc-4096: Restoring 0xd70630a0-0xd706312f=0x6b
> [14159.078955] 
> [14159.078955] FIX kmalloc-4096: Marking all objects used
> 
> -- 
> Sitsofe | http://sucs.org/~sits/
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/


^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-22 14:47     ` Frederic Weisbecker
@ 2009-02-22 17:02       ` Sitsofe Wheeler
  2009-02-22 17:10         ` Frederic Weisbecker
  2009-02-22 21:56         ` Jiri Slaby
  2009-02-22 20:17       ` Bob Copeland
  1 sibling, 2 replies; 66+ messages in thread
From: Sitsofe Wheeler @ 2009-02-22 17:02 UTC (permalink / raw)
  To: Frederic Weisbecker
  Cc: Jiri Slaby, linux-kernel, linux-wireless, ath5k-devel,
	Nick Kossifidis, Luis R. Rodriguez, Bob Copeland

On Sun, Feb 22, 2009 at 03:47:44PM +0100, Frederic Weisbecker wrote:
> On Sun, Feb 22, 2009 at 12:20:36PM +0000, Sitsofe Wheeler wrote:
> > On Sun, Feb 22, 2009 at 01:01:21PM +0100, Jiri Slaby wrote:
> > > The unsupported jumbo message might be a clue. When we jump to the next: 
> > > label, the buffer is at the end of the list in software, while in 
> > > hardware it isn't. In theory, we might hit the bug with rx buffers 
> > > exhaustion, because the test (bf_last == bf) doesn't work as expected then.
> > 
> > This seems to be happening somewhat regularly now - I've got a small
> > collections of the warnings (I'll include them below in case they are
> > any help):
> > 
> > [ 7435.711659] ath5k phy0: unsupported jumbo
> > [ 8125.567136] ath5k phy0: noise floor calibration timeout (2417MHz)
> > [ 9596.212322] ath5k phy0: unsupported jumbo
> > [10697.497598] ath5k phy0: unsupported jumbo
> > [11207.740975] =============================================================================
> > [11207.740986] BUG kmalloc-4096: Poison overwritten
> > [11207.740991] -----------------------------------------------------------------------------
> > [11207.740994] 
> > [11207.740999] INFO: 0xd7060010-0xd7060053. First byte 0x80 instead of 0x6b
> > [11207.741014] INFO: Allocated in dev_alloc_skb+0x21/0x40 age=4990 cpu=0 pid=0
> > [11207.741023] INFO: Freed in skb_release_data+0x5e/0x90 age=893 cpu=0 pid=508
> > [11207.741030] INFO: Slab 0xc133dd80 objects=7 used=5 fp=0xd7060000 flags=0x400020c3
> > [11207.741036] INFO: Object 0xd7060000 @offset=0 fp=0xd70640c0

> Looks like it happens with ath5k driver.
> Well, I have an atheros card, so I'm testing it.

Good luck! I've just switched to a different location (with faster wifi
and more single network access points ) and I've been totally unable to
reproduce this warning.

If there's some debug output that I produce that will help you let me
know...

-- 
Sitsofe | http://sucs.org/~sits/

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-22 17:02       ` Sitsofe Wheeler
@ 2009-02-22 17:10         ` Frederic Weisbecker
  2009-02-22 19:27           ` Jiri Slaby
  2009-02-22 21:56         ` Jiri Slaby
  1 sibling, 1 reply; 66+ messages in thread
From: Frederic Weisbecker @ 2009-02-22 17:10 UTC (permalink / raw)
  To: Sitsofe Wheeler
  Cc: Jiri Slaby, linux-kernel, linux-wireless, ath5k-devel,
	Nick Kossifidis, Luis R. Rodriguez, Bob Copeland

On Sun, Feb 22, 2009 at 05:02:01PM +0000, Sitsofe Wheeler wrote:
> On Sun, Feb 22, 2009 at 03:47:44PM +0100, Frederic Weisbecker wrote:
> > On Sun, Feb 22, 2009 at 12:20:36PM +0000, Sitsofe Wheeler wrote:
> > > On Sun, Feb 22, 2009 at 01:01:21PM +0100, Jiri Slaby wrote:
> > > > The unsupported jumbo message might be a clue. When we jump to the next: 
> > > > label, the buffer is at the end of the list in software, while in 
> > > > hardware it isn't. In theory, we might hit the bug with rx buffers 
> > > > exhaustion, because the test (bf_last == bf) doesn't work as expected then.
> > > 
> > > This seems to be happening somewhat regularly now - I've got a small
> > > collections of the warnings (I'll include them below in case they are
> > > any help):
> > > 
> > > [ 7435.711659] ath5k phy0: unsupported jumbo
> > > [ 8125.567136] ath5k phy0: noise floor calibration timeout (2417MHz)
> > > [ 9596.212322] ath5k phy0: unsupported jumbo
> > > [10697.497598] ath5k phy0: unsupported jumbo
> > > [11207.740975] =============================================================================
> > > [11207.740986] BUG kmalloc-4096: Poison overwritten
> > > [11207.740991] -----------------------------------------------------------------------------
> > > [11207.740994] 
> > > [11207.740999] INFO: 0xd7060010-0xd7060053. First byte 0x80 instead of 0x6b
> > > [11207.741014] INFO: Allocated in dev_alloc_skb+0x21/0x40 age=4990 cpu=0 pid=0
> > > [11207.741023] INFO: Freed in skb_release_data+0x5e/0x90 age=893 cpu=0 pid=508
> > > [11207.741030] INFO: Slab 0xc133dd80 objects=7 used=5 fp=0xd7060000 flags=0x400020c3
> > > [11207.741036] INFO: Object 0xd7060000 @offset=0 fp=0xd70640c0
> 
> > Looks like it happens with ath5k driver.
> > Well, I have an atheros card, so I'm testing it.
> 
> Good luck! I've just switched to a different location (with faster wifi
> and more single network access points ) and I've been totally unable to
> reproduce this warning.

I have some troubles with kmemcheck, so I give up for now.
Well, by reading the kmemcheck documentation, it tells that there can be some false
positives so...

 
> If there's some debug output that I produce that will help you let me
> know...


Since we are not sure this is a real bug, I'm not sure it would be interesting.

Well, I will see that later.
Thanks.


> -- 
> Sitsofe | http://sucs.org/~sits/




^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-22 17:10         ` Frederic Weisbecker
@ 2009-02-22 19:27           ` Jiri Slaby
  2009-02-22 19:42             ` Frederic Weisbecker
  0 siblings, 1 reply; 66+ messages in thread
From: Jiri Slaby @ 2009-02-22 19:27 UTC (permalink / raw)
  To: Frederic Weisbecker
  Cc: Sitsofe Wheeler, linux-kernel, linux-wireless, ath5k-devel,
	Nick Kossifidis, Luis R. Rodriguez, Bob Copeland

On 22.2.2009 18:10, Frederic Weisbecker wrote:
> I have some troubles with kmemcheck, so I give up for now.
> Well, by reading the kmemcheck documentation, it tells that there can be some false
> positives so...

This has nothing to do with kmemcheck.

> Since we are not sure this is a real bug, I'm not sure it would be interesting.

There is no false positive possibility with these checkers, so this is 
pretty much interesting, because it is a bug.

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-22 19:27           ` Jiri Slaby
@ 2009-02-22 19:42             ` Frederic Weisbecker
  2009-02-22 20:18               ` Sitsofe Wheeler
  0 siblings, 1 reply; 66+ messages in thread
From: Frederic Weisbecker @ 2009-02-22 19:42 UTC (permalink / raw)
  To: Jiri Slaby
  Cc: Sitsofe Wheeler, linux-kernel, linux-wireless, ath5k-devel,
	Nick Kossifidis, Luis R. Rodriguez, Bob Copeland

On Sun, Feb 22, 2009 at 08:27:38PM +0100, Jiri Slaby wrote:
> On 22.2.2009 18:10, Frederic Weisbecker wrote:
>> I have some troubles with kmemcheck, so I give up for now.
>> Well, by reading the kmemcheck documentation, it tells that there can be some false
>> positives so...
>
> This has nothing to do with kmemcheck.
>
>> Since we are not sure this is a real bug, I'm not sure it would be interesting.
>
> There is no false positive possibility with these checkers, so this is  
> pretty much interesting, because it is a bug.


If so, Documentation/kmemcheck.txt really needs an update.


^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-22 14:47     ` Frederic Weisbecker
  2009-02-22 17:02       ` Sitsofe Wheeler
@ 2009-02-22 20:17       ` Bob Copeland
  1 sibling, 0 replies; 66+ messages in thread
From: Bob Copeland @ 2009-02-22 20:17 UTC (permalink / raw)
  To: Sitsofe Wheeler
  Cc: Frederic Weisbecker, Jiri Slaby, linux-kernel, linux-wireless,
	ath5k-devel, Nick Kossifidis, Luis R. Rodriguez

On Sun, Feb 22, 2009 at 9:47 AM, Frederic Weisbecker <fweisbec@gmail.com> wrote:
> On Sun, Feb 22, 2009 at 12:20:36PM +0000, Sitsofe Wheeler wrote:
>> On Sun, Feb 22, 2009 at 01:01:21PM +0100, Jiri Slaby wrote:
>> > The unsupported jumbo message might be a clue. When we jump to the next:
>> > label, the buffer is at the end of the list in software, while in
>> > hardware it isn't. In theory, we might hit the bug with rx buffers
>> > exhaustion, because the test (bf_last == bf) doesn't work as expected then.
>>
>> This seems to be happening somewhat regularly now - I've got a small
>> collections of the warnings (I'll include them below in case they are
>> any help):

If this is a recent phenomenon, can you try reverting my patch,
fcf6b1bca8cdfefc986909b57277af4628955bd8?

This was the last patch to touch the rx path in a meaningful way.  I can't
think of anything there that would cause a use-after-free in the change,
maybe removing the "bf->skb = NULL" line, but that's the software struct,
not the hardware dma descriptor.

-- 
Bob Copeland %% www.bobcopeland.com

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-22 19:42             ` Frederic Weisbecker
@ 2009-02-22 20:18               ` Sitsofe Wheeler
  2009-02-22 20:27                 ` Jiri Slaby
  2009-02-22 20:30                 ` Frederic Weisbecker
  0 siblings, 2 replies; 66+ messages in thread
From: Sitsofe Wheeler @ 2009-02-22 20:18 UTC (permalink / raw)
  To: Frederic Weisbecker
  Cc: Jiri Slaby, linux-kernel, linux-wireless, ath5k-devel,
	Nick Kossifidis, Luis R. Rodriguez, Bob Copeland

On Sun, Feb 22, 2009 at 08:42:37PM +0100, Frederic Weisbecker wrote:
> On Sun, Feb 22, 2009 at 08:27:38PM +0100, Jiri Slaby wrote:
> > On 22.2.2009 18:10, Frederic Weisbecker wrote:
> >> I have some troubles with kmemcheck, so I give up for now.
> >> Well, by reading the kmemcheck documentation, it tells that there can be some false
> >> positives so...
> >
> > This has nothing to do with kmemcheck.
> >
> >> Since we are not sure this is a real bug, I'm not sure it would be interesting.
> >
> > There is no false positive possibility with these checkers, so this is  
> > pretty much interesting, because it is a bug.
> 
> 
> If so, Documentation/kmemcheck.txt really needs an update.

kmemcheck is different to the slab object lifetime debugger (which is
what reported this error). kmemcheck may have turned up in the trace
because it was compiled in (and it ties into slab/slub) but wasn't
turned on (it can be dynamically toggled via sysfs).

kmemcheck keeps a shadow of the memory and via the shadow memory it
records whether the memory has been written to yet. I believe
kmemcheck's problem is that it can't know when allocated but
uninitialised memory is being used on purpose/not really being used
(e.g. when gcc does a 32 bit read when only 16 bits have been used but
throws the upper 16 bits away). There may be other cases such as when a
previously uninitialised buffer is used but the buffer is actually used
by an mmaped device...

My understanding is that the slab debugger writes poison about the place
(e.g. to memory that has been freed and at the start/end of allocations)
and then checks to see if someone has scribbled on it. This case is more
coarse as it only deals with allocation rather than initialisation (and
if you scribble the same value as the poison pattern you go undetected)
but I believe this is what Jiri is referring to as a "no false positive
possibility" case - it's never right to write to unallocated memory.

(fixed up Bob's email address on the cc)

-- 
Sitsofe | http://sucs.org/~sits/

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-22 20:18               ` Sitsofe Wheeler
@ 2009-02-22 20:27                 ` Jiri Slaby
  2009-02-22 20:30                 ` Frederic Weisbecker
  1 sibling, 0 replies; 66+ messages in thread
From: Jiri Slaby @ 2009-02-22 20:27 UTC (permalink / raw)
  To: Sitsofe Wheeler
  Cc: Frederic Weisbecker, Jiri Slaby, linux-kernel, linux-wireless,
	ath5k-devel, Nick Kossifidis, Luis R. Rodriguez, Bob Copeland

On 22.2.2009 21:18, Sitsofe Wheeler wrote:
> This case is more
> coarse as it only deals with allocation rather than initialisation (and
> if you scribble the same value as the poison pattern you go undetected)

This is false negative, yes.

> but I believe this is what Jiri is referring to as a "no false positive
> possibility" case - it's never right to write to unallocated memory.

Exactly, thanks.

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-22 20:18               ` Sitsofe Wheeler
  2009-02-22 20:27                 ` Jiri Slaby
@ 2009-02-22 20:30                 ` Frederic Weisbecker
  1 sibling, 0 replies; 66+ messages in thread
From: Frederic Weisbecker @ 2009-02-22 20:30 UTC (permalink / raw)
  To: Sitsofe Wheeler
  Cc: Jiri Slaby, linux-kernel, linux-wireless, ath5k-devel,
	Nick Kossifidis, Luis R. Rodriguez, Bob Copeland

On Sun, Feb 22, 2009 at 08:18:22PM +0000, Sitsofe Wheeler wrote:
> On Sun, Feb 22, 2009 at 08:42:37PM +0100, Frederic Weisbecker wrote:
> > On Sun, Feb 22, 2009 at 08:27:38PM +0100, Jiri Slaby wrote:
> > > On 22.2.2009 18:10, Frederic Weisbecker wrote:
> > >> I have some troubles with kmemcheck, so I give up for now.
> > >> Well, by reading the kmemcheck documentation, it tells that there can be some false
> > >> positives so...
> > >
> > > This has nothing to do with kmemcheck.
> > >
> > >> Since we are not sure this is a real bug, I'm not sure it would be interesting.
> > >
> > > There is no false positive possibility with these checkers, so this is  
> > > pretty much interesting, because it is a bug.
> > 
> > 
> > If so, Documentation/kmemcheck.txt really needs an update.
> 
> kmemcheck is different to the slab object lifetime debugger (which is
> what reported this error). kmemcheck may have turned up in the trace
> because it was compiled in (and it ties into slab/slub) but wasn't
> turned on (it can be dynamically toggled via sysfs).


Ah sorry, I thought it was a kmemcheck warning. That's why I didn't understand
what Jiri said to me.

 
> kmemcheck keeps a shadow of the memory and via the shadow memory it
> records whether the memory has been written to yet. I believe
> kmemcheck's problem is that it can't know when allocated but
> uninitialised memory is being used on purpose/not really being used
> (e.g. when gcc does a 32 bit read when only 16 bits have been used but
> throws the upper 16 bits away). There may be other cases such as when a
> previously uninitialised buffer is used but the buffer is actually used
> by an mmaped device...


Ok.

> My understanding is that the slab debugger writes poison about the place
> (e.g. to memory that has been freed and at the start/end of allocations)
> and then checks to see if someone has scribbled on it. This case is more
> coarse as it only deals with allocation rather than initialisation (and
> if you scribble the same value as the poison pattern you go undetected)
> but I believe this is what Jiri is referring to as a "no false positive
> possibility" case - it's never right to write to unallocated memory.
> 
> (fixed up Bob's email address on the cc)


Well I understand better now. Thanks for the explanations.
 
> -- 
> Sitsofe | http://sucs.org/~sits/


^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-22 17:02       ` Sitsofe Wheeler
  2009-02-22 17:10         ` Frederic Weisbecker
@ 2009-02-22 21:56         ` Jiri Slaby
  2009-02-22 22:21           ` Sitsofe Wheeler
  2009-02-22 23:20           ` Jiri Slaby
  1 sibling, 2 replies; 66+ messages in thread
From: Jiri Slaby @ 2009-02-22 21:56 UTC (permalink / raw)
  To: Sitsofe Wheeler
  Cc: Frederic Weisbecker, Jiri Slaby, linux-kernel, linux-wireless,
	ath5k-devel, Nick Kossifidis, Luis R. Rodriguez, Bob Copeland

On 22.2.2009 18:02, Sitsofe Wheeler wrote:
> On Sun, Feb 22, 2009 at 03:47:44PM +0100, Frederic Weisbecker wrote:
>> Looks like it happens with ath5k driver.
>> Well, I have an atheros card, so I'm testing it.
>
> Good luck! I've just switched to a different location (with faster wifi
> and more single network access points ) and I've been totally unable to
> reproduce this warning.

Well, maybe we should try to reproduce with jumbo packets sent to the 
ath5k receiver, since I think it (1) is not very much test-covered code 
(2) appears to be related.

Could you append lspci -vvnnxxx of your adapter? Better along with 
ath_info[1] output.

[1] svn co http://svn.madwifi-project.org/ath_info/trunk ath_info

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-22 21:56         ` Jiri Slaby
@ 2009-02-22 22:21           ` Sitsofe Wheeler
  2009-02-22 23:20           ` Jiri Slaby
  1 sibling, 0 replies; 66+ messages in thread
From: Sitsofe Wheeler @ 2009-02-22 22:21 UTC (permalink / raw)
  To: Jiri Slaby
  Cc: Frederic Weisbecker, linux-kernel, linux-wireless, ath5k-devel,
	Nick Kossifidis, Luis R. Rodriguez, Bob Copeland

On Sun, Feb 22, 2009 at 10:56:17PM +0100, Jiri Slaby wrote:
> Could you append lspci -vvnnxxx of your adapter? Better along with 
> ath_info[1] output.

lspci -vvnnxxx
00:00.0 Host bridge [0600]: Intel Corporation Mobile 915GM/PM/GMS/910GML Express Processor to DRAM Controller [8086:2590] (rev 04)
	Subsystem: ASUSTeK Computer Inc. Unknown device [1043:82d9]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR-
	Latency: 0
	Capabilities: <access denied>
00: 86 80 90 25 06 00 90 20 04 00 00 06 00 00 00 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 43 10 d9 82
30: 00 00 00 00 e0 00 00 00 00 00 00 00 00 00 00 00

00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller [8086:2592] (rev 04) (prog-if 00 [VGA controller])
	Subsystem: ASUSTeK Computer Inc. Unknown device [1043:82d9]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 0
	Interrupt: pin A routed to IRQ 16
	Region 0: Memory at f7f00000 (32-bit, non-prefetchable) [size=512K]
	Region 1: I/O ports at ec00 [size=8]
	Region 2: Memory at d0000000 (32-bit, prefetchable) [size=256M]
	Region 3: Memory at f7ec0000 (32-bit, non-prefetchable) [size=256K]
	Capabilities: <access denied>
00: 86 80 92 25 07 00 90 00 04 00 00 03 00 00 80 00
10: 00 00 f0 f7 01 ec 00 00 08 00 00 d0 00 00 ec f7
20: 00 00 00 00 00 00 00 00 00 00 00 00 43 10 d9 82
30: 00 00 00 00 d0 00 00 00 00 00 00 00 05 01 00 00

00:02.1 Display controller [0380]: Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller [8086:2792] (rev 04)
	Subsystem: ASUSTeK Computer Inc. Unknown device [1043:82d9]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 0
	Region 0: Memory at f7f80000 (32-bit, non-prefetchable) [size=512K]
	Capabilities: <access denied>
00: 86 80 92 27 07 00 90 00 04 00 80 03 00 00 80 00
10: 00 00 f8 f7 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 43 10 d9 82
30: 00 00 00 00 d0 00 00 00 00 00 00 00 00 00 00 00

00:1b.0 Audio device [0403]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) High Definition Audio Controller [8086:2668] (rev 04)
	Subsystem: ASUSTeK Computer Inc. Unknown device [1043:8337]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 0, Cache Line Size: 16 bytes
	Interrupt: pin A routed to IRQ 16
	Region 0: Memory at f7eb8000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
00: 86 80 68 26 06 00 10 00 04 00 03 04 04 00 00 00
10: 04 80 eb f7 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 43 10 37 83
30: 00 00 00 00 50 00 00 00 00 00 00 00 05 01 00 00

00:1c.0 PCI bridge [0604]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 1 [8086:2660] (rev 04) (prog-if 00 [Normal decode])
	Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 0, Cache Line Size: 16 bytes
	Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
	Capabilities: <access denied>
00: 86 80 60 26 04 05 10 00 04 00 04 06 04 00 81 00
10: 00 00 00 00 00 00 00 00 00 04 04 00 f0 00 00 20
20: f0 ff 00 00 f1 ff 01 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 40 00 00 00 00 00 00 00 05 01 06 00

00:1c.1 PCI bridge [0604]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 2 [8086:2662] (rev 04) (prog-if 00 [Normal decode])
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 0, Cache Line Size: 16 bytes
	Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
	Memory behind bridge: fbf00000-fbffffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
	Capabilities: <access denied>
00: 86 80 62 26 06 05 10 00 04 00 04 06 04 00 81 00
10: 00 00 00 00 00 00 00 00 00 03 03 00 f0 00 00 20
20: f0 fb f0 fb f1 ff 01 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 40 00 00 00 00 00 00 00 0b 02 06 00

00:1c.2 PCI bridge [0604]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 3 [8086:2664] (rev 04) (prog-if 00 [Normal decode])
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 0, Cache Line Size: 16 bytes
	Bus: primary=00, secondary=01, subordinate=02, sec-latency=0
	Memory behind bridge: f8000000-fbefffff
	Prefetchable memory behind bridge: 00000000f0000000-00000000f6ffffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
	Capabilities: <access denied>
00: 86 80 64 26 06 05 10 00 04 00 04 06 04 00 81 00
10: 00 00 00 00 00 00 00 00 00 01 02 00 f0 00 00 20
20: 00 f8 e0 fb 01 f0 f1 f6 00 00 00 00 00 00 00 00
30: 00 00 00 00 40 00 00 00 00 00 00 00 0a 03 06 00

00:1d.0 USB Controller [0c03]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #1 [8086:2658] (rev 04) (prog-if 00 [UHCI])
	Subsystem: ASUSTeK Computer Inc. Unknown device [1043:82d8]
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 0
	Interrupt: pin A routed to IRQ 23
	Region 4: I/O ports at e400 [size=32]
00: 86 80 58 26 05 00 80 02 04 00 03 0c 00 00 80 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 01 e4 00 00 00 00 00 00 00 00 00 00 43 10 d8 82
30: 00 00 00 00 00 00 00 00 00 00 00 00 03 01 00 00

00:1d.1 USB Controller [0c03]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #2 [8086:2659] (rev 04) (prog-if 00 [UHCI])
	Subsystem: ASUSTeK Computer Inc. Unknown device [1043:82d8]
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 0
	Interrupt: pin B routed to IRQ 19
	Region 4: I/O ports at e480 [size=32]
00: 86 80 59 26 05 00 80 02 04 00 03 0c 00 00 00 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 81 e4 00 00 00 00 00 00 00 00 00 00 43 10 d8 82
30: 00 00 00 00 00 00 00 00 00 00 00 00 07 02 00 00

00:1d.2 USB Controller [0c03]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #3 [8086:265a] (rev 04) (prog-if 00 [UHCI])
	Subsystem: ASUSTeK Computer Inc. Unknown device [1043:82d8]
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 0
	Interrupt: pin C routed to IRQ 18
	Region 4: I/O ports at e800 [size=32]
00: 86 80 5a 26 05 00 80 02 04 00 03 0c 00 00 00 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 01 e8 00 00 00 00 00 00 00 00 00 00 43 10 d8 82
30: 00 00 00 00 00 00 00 00 00 00 00 00 0a 03 00 00

00:1d.3 USB Controller [0c03]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #4 [8086:265b] (rev 04) (prog-if 00 [UHCI])
	Subsystem: ASUSTeK Computer Inc. Unknown device [1043:82d8]
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 0
	Interrupt: pin D routed to IRQ 16
	Region 4: I/O ports at e880 [size=32]
00: 86 80 5b 26 05 00 80 02 04 00 03 0c 00 00 00 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 81 e8 00 00 00 00 00 00 00 00 00 00 43 10 d8 82
30: 00 00 00 00 00 00 00 00 00 00 00 00 05 04 00 00

00:1d.7 USB Controller [0c03]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB2 EHCI Controller [8086:265c] (rev 04) (prog-if 20 [EHCI])
	Subsystem: ASUSTeK Computer Inc. Unknown device [1043:82d8]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 0
	Interrupt: pin A routed to IRQ 23
	Region 0: Memory at f7eb7c00 (32-bit, non-prefetchable) [size=1K]
	Capabilities: <access denied>
00: 86 80 5c 26 06 00 90 02 04 20 03 0c 00 00 00 00
10: 00 7c eb f7 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 43 10 d8 82
30: 00 00 00 00 50 00 00 00 00 00 00 00 03 01 00 00

00:1e.0 PCI bridge [0604]: Intel Corporation 82801 Mobile PCI Bridge [8086:2448] (rev d4) (prog-if 01 [Subtractive decode])
	Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 0
	Bus: primary=00, secondary=05, subordinate=05, sec-latency=32
	Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
	Capabilities: <access denied>
00: 86 80 48 24 04 01 10 00 d4 01 04 06 00 00 01 00
10: 00 00 00 00 00 00 00 00 00 05 05 20 f0 00 80 22
20: f0 ff 00 00 f1 ff 01 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 50 00 00 00 00 00 00 00 ff 00 06 00

00:1f.0 ISA bridge [0601]: Intel Corporation 82801FBM (ICH6M) LPC Interface Bridge [8086:2641] (rev 04)
	Subsystem: ASUSTeK Computer Inc. Unknown device [1043:82d8]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 0
00: 86 80 41 26 07 00 00 02 04 00 01 06 00 00 80 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 43 10 d8 82
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

00:1f.2 IDE interface [0101]: Intel Corporation 82801FBM (ICH6M) SATA Controller [8086:2653] (rev 04) (prog-if 80 [Master])
	Subsystem: ASUSTeK Computer Inc. Unknown device [1043:82d8]
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 0
	Interrupt: pin B routed to IRQ 19
	Region 0: I/O ports at 01f0 [size=8]
	Region 1: I/O ports at 03f4 [size=1]
	Region 2: I/O ports at 0170 [size=8]
	Region 3: I/O ports at 0374 [size=1]
	Region 4: I/O ports at ffa0 [size=16]
	Capabilities: <access denied>
00: 86 80 53 26 05 00 b0 02 04 80 01 01 00 00 00 00
10: 01 00 00 00 01 00 00 00 01 00 00 00 01 00 00 00
20: a1 ff 00 00 00 00 00 00 00 00 00 00 43 10 d8 82
30: 00 00 00 00 70 00 00 00 00 00 00 00 00 02 00 00

00:1f.3 SMBus [0c05]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) SMBus Controller [8086:266a] (rev 04)
	Subsystem: ASUSTeK Computer Inc. Unknown device [1043:82d8]
	Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Interrupt: pin B routed to IRQ 0
	Region 4: I/O ports at 0400 [size=32]
00: 86 80 6a 26 01 00 80 02 04 00 05 0c 00 00 00 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 01 04 00 00 00 00 00 00 00 00 00 00 43 10 d8 82
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 02 00 00

01:00.0 Ethernet controller [0200]: Atheros Communications Inc. AR242x 802.11abg Wireless PCI Express Adapter [168c:001c] (rev 01)
	Subsystem: Unknown device [1a3b:1026]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 0, Cache Line Size: 16 bytes
	Interrupt: pin A routed to IRQ 18
	Region 0: Memory at fbef0000 (64-bit, non-prefetchable) [size=64K]
	Capabilities: <access denied>
00: 8c 16 1c 00 07 00 10 00 01 00 00 02 04 00 00 00
10: 04 00 ef fb 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 01 50 00 00 3b 1a 26 10
30: 00 00 00 00 40 00 00 00 00 00 00 00 0a 01 00 00

03:00.0 Ethernet controller [0200]: Attansic Technology Corp. L2 100 Mbit Ethernet Adapter [1969:2048] (rev a0)
	Subsystem: ASUSTeK Computer Inc. Unknown device [1043:8233]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 0, Cache Line Size: 16 bytes
	Interrupt: pin A routed to IRQ 27
	Region 0: Memory at fbfc0000 (64-bit, non-prefetchable) [size=256K]
	Expansion ROM at fbfa0000 [disabled] [size=128K]
	Capabilities: <access denied>
00: 69 19 48 20 06 04 10 00 a0 00 00 02 04 00 00 00
10: 04 00 fc fb 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 43 10 33 82
30: 00 00 fa fb 40 00 00 00 00 00 00 00 0b 01 00 00

(I'm currently not on the problem network)
./ath_info fbef0000
sleep_ctl reg 00000000   reset_ctl reg 00000000
 -==Device Information==-
MAC Revision: 2425  (0xe2)
Warning: Invalid EEPROM Magic number!
Device type:  3

/============== EEPROM Information =============\
| EEPROM Version:   5.3 | EEPROM Size:   4 kbit |
| EEMAP:              2 | Reg. Domain:     0x60 |
|================= Capabilities ================|
| 802.11a Support:  no  | Turbo-A disabled: yes |
| 802.11b Support:  no  | Turbo-G disabled: yes |
| 802.11g Support:  yes | 2GHz XR disabled: yes |
| RFKill  Support:  yes | 5GHz XR disabled: yes |
| 32kHz   Crystal:  no  |                       |
\===============================================/

/=========================================================\
|          Calibration data common for all modes          |
|=========================================================|
|          CCK/OFDM gain delta:             1             |
|          CCK/OFDM power delta:            5             |
|          Scaled CCK delta:                5             |
|          2GHz Antenna gain:               1             |
|          5GHz Antenna gain:               4             |
|          Turbo 2W maximum dBm:           38             |
|          Target power start:          0x16e             |
|          EAR Start:                   0x1b8             |
\=========================================================/

/=========================================================\
|          Calibration data for 802.11g operation         |
|=========================================================|
| I power:              0x00 | Q power:              0x13 |
| Use fixed bias:       0x01 | Max turbo power:      0x26 |
| Max XR power:         0x20 | Switch Settling Time: 0x28 |
| Tx/Rx attenuation:    0x19 | TX end to XLNA On:    0x00 |
| TX end to XPA Off:    0x00 | TX end to XPA On:     0x0e |
| 62db Threshold:       0x1c | XLNA gain:            0x00 |
| XPD:                  0x01 | XPD gain:             0x0a |
| I gain:               0x00 | Tx/Rx margin:         0x01 |
| False detect backoff: 0x00 | Noise Floor Threshold:  -1 |
| ADC desired size:      -38 | PGA desired size:      -80 |
|=========================================================|
| Antenna control   0:  0x00 | Antenna control   1:  0x01 |
| Antenna control   2:  0x22 | Antenna control   3:  0x22 |
| Antenna control   4:  0x00 | Antenna control   5:  0x00 |
| Antenna control   6:  0x02 | Antenna control   7:  0x21 |
| Antenna control   8:  0x21 | Antenna control   9:  0x00 |
| Antenna control  10:  0x00 | Antenna control  11:  0x02 |
|=========================================================|
| Octave Band 0:           3 | db 0:                    3 |
| Octave Band 1:           4 | db 1:                    4 |
| Octave Band 2:           0 | db 2:                    0 |
| Octave Band 3:           0 | db 3:                    0 |
\=========================================================/
/==================== Turbo mode infos ===================\
| Switch Settling time: 0x28 | Tx/Rx margin:         0x01 |
| Tx/Rx attenuation:    0x19 | ADC desired size:      -32 |
| PGA desired size:      -80 |                            |
\=========================================================/
/============== Per rate power calibration ===========\
| Freq | 6-24Mbit/s | 36Mbit/s |  48Mbit/s | 54Mbit/s |
|======|============|==========|===========|==========|
| 2412 |    16.00   |  15.00   |   14.00   |  13.00   |
|======|============|==========|===========|==========|
| 2437 |    16.00   |  15.00   |   14.00   |  13.00   |
|======|============|==========|===========|==========|
| 2472 |    16.00   |  15.00   |   14.00   |  13.00   |
\=====================================================/
/====================== Per channel power calibration ===================\
| Freq |  pwr_i  |    pwr_0    |    pwr_1    |    pwr_2    |    pwr_3    |
|      | pddac_i |   pddac_0   |   pddac_1   |   pddac_2   |   pddac_3   |
|======|=========|=============|=============|=============|=============|
| 2412 |         |             |             |             |             |
|------|---------|-------------|-------------|-------------|-------------|
|      |     0   |     4.00    |     8.50    |    12.50    |     0.00    |
|      |    10   |       15    |       47    |       83    |        0    |
|------|---------|-------------|-------------|-------------|-------------|
|      |    10   |    13.00    |    16.00    |    18.00    |    20.50    |
|      |    12   |       23    |       38    |       52    |       67    |
|======|=========|=============|=============|=============|=============|
| 2472 |         |             |             |             |             |
|------|---------|-------------|-------------|-------------|-------------|
|      |     0   |     4.00    |     8.50    |    13.00    |     0.00    |
|      |    10   |       15    |       25    |       61    |        0    |
|------|---------|-------------|-------------|-------------|-------------|
|      |    10   |    13.00    |    16.00    |    19.00    |    20.50    |
|      |     9   |       18    |       33    |       45    |       46    |
|======|=========|=============|=============|=============|=============|
| 2484 |         |             |             |             |             |
|------|---------|-------------|-------------|-------------|-------------|
|      |     0   |     4.00    |     8.50    |    13.00    |     0.00    |
|      |    10   |       15    |       20    |       55    |        0    |
|------|---------|-------------|-------------|-------------|-------------|
|      |    10   |    12.50    |    16.00    |    19.00    |    20.00    |
|      |     9   |       16    |       31    |       40    |        0    |
\========================================================================/

GPIO registers: CR 0x00000000, DO 0x00000000, DI 0x00000003
STA_ID0: 00:15:af:b6:12:07
STA_ID1: 0x10000712, AP: 0, IBSS: 0, KeyCache Disable: 0
TIMER0: 0x00000528, TBTT:  1320, TU: 0x109d0528
TIMER1: 0x000000e2, DMAb:    28, TU: 0x109d001c (-1292)
TIMER2: 0x000c00d0, SWBA: 32794, TU: 0x10c1801a (+2390770)
TIMER3: 0x000000e2, ATIM:   226, TU: 0x109d00e2 (-1094)
TSF: 0x0000004273c1c15f, TSFTU: 61552, TU: 0x109cf070
BEACON: 0x00108000
LAST_TSTP: 0x73c16196

-- 
Sitsofe | http://sucs.org/~sits/

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-22 21:56         ` Jiri Slaby
  2009-02-22 22:21           ` Sitsofe Wheeler
@ 2009-02-22 23:20           ` Jiri Slaby
  2009-02-23 15:35             ` Bob Copeland
  1 sibling, 1 reply; 66+ messages in thread
From: Jiri Slaby @ 2009-02-22 23:20 UTC (permalink / raw)
  To: Sitsofe Wheeler
  Cc: Frederic Weisbecker, linux-kernel, linux-wireless, ath5k-devel,
	Nick Kossifidis, Luis R. Rodriguez, Bob Copeland

On 22.2.2009 22:56, Jiri Slaby wrote:
> Well, maybe we should try to reproduce with jumbo packets sent to the
> ath5k receiver, since I think it (1) is not very much test-covered code
> (2) appears to be related.

According to the spec I have for older chip, there is not `done' flag 
set for descriptors which have `more' flag set. We handle this wrongly. 
Am I looking correctly, Nick, Luis, Bob?

I still don't see what could have caused this though.

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-22 23:20           ` Jiri Slaby
@ 2009-02-23 15:35             ` Bob Copeland
  2009-02-23 16:03               ` Nick Kossifidis
  2009-02-23 22:22               ` Jiri Slaby
  0 siblings, 2 replies; 66+ messages in thread
From: Bob Copeland @ 2009-02-23 15:35 UTC (permalink / raw)
  To: Jiri Slaby, Sitsofe Wheeler
  Cc: Frederic Weisbecker, linux-kernel, linux-wireless, ath5k-devel,
	Nick Kossifidis, Luis R. Rodriguez

On Mon, 23 Feb 2009 00:20:50 +0100, Jiri Slaby wrote
> On 22.2.2009 22:56, Jiri Slaby wrote:
> > Well, maybe we should try to reproduce with jumbo packets sent to the
> > ath5k receiver, since I think it (1) is not very much test-covered code
> > (2) appears to be related.
> 
> According to the spec I have for older chip, there is not `done' flag 
> set for descriptors which have `more' flag set. We handle this wrongly. 
> Am I looking correctly, Nick, Luis, Bob?
> 
> I still don't see what could have caused this though.

As I understand it, yes, we don't do the right thing when the more flag
is set.  We're supposed to keep processing packets until we get one with
the done flag, and then all of that is supposed to be merged into a single
packet.  Other flags such as the rx rate are only valid on the final
packet.

However, I did some debugging of this a while ago and concluded that the
'jumbo' frames were largely garbage data.  The dma buffer size is certainly
large enough for a standard 802.11 frame and the 'more' flag is only
supposed to be set if the dma buffer size is too small for a packet.  In
all cases the dma buffer size was 2500+ bytes and the actual contents of
the packets looked like random values (I did have encryption turned on,
but there were no 802.11 headers I could see.)

So I am not sure if the jumbo packets are causing bad things to happen,
or if they are an indication that something bad has already happened.

-- 
Bob Copeland %% www.bobcopeland.com



^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-23 15:35             ` Bob Copeland
@ 2009-02-23 16:03               ` Nick Kossifidis
  2009-02-23 16:15                 ` Nick Kossifidis
  2009-02-23 16:16                 ` pat-lkml
  2009-02-23 22:22               ` Jiri Slaby
  1 sibling, 2 replies; 66+ messages in thread
From: Nick Kossifidis @ 2009-02-23 16:03 UTC (permalink / raw)
  To: Bob Copeland
  Cc: Jiri Slaby, Sitsofe Wheeler, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

2009/2/23 Bob Copeland <me@bobcopeland.com>:
> On Mon, 23 Feb 2009 00:20:50 +0100, Jiri Slaby wrote
>> On 22.2.2009 22:56, Jiri Slaby wrote:
>> > Well, maybe we should try to reproduce with jumbo packets sent to the
>> > ath5k receiver, since I think it (1) is not very much test-covered code
>> > (2) appears to be related.
>>
>> According to the spec I have for older chip, there is not `done' flag
>> set for descriptors which have `more' flag set. We handle this wrongly.
>> Am I looking correctly, Nick, Luis, Bob?
>>
>> I still don't see what could have caused this though.
>
> As I understand it, yes, we don't do the right thing when the more flag
> is set.  We're supposed to keep processing packets until we get one with
> the done flag, and then all of that is supposed to be merged into a single
> packet.  Other flags such as the rx rate are only valid on the final
> packet.
>
> However, I did some debugging of this a while ago and concluded that the
> 'jumbo' frames were largely garbage data.  The dma buffer size is certainly
> large enough for a standard 802.11 frame and the 'more' flag is only
> supposed to be set if the dma buffer size is too small for a packet.  In
> all cases the dma buffer size was 2500+ bytes and the actual contents of
> the packets looked like random values (I did have encryption turned on,
> but there were no 802.11 headers I could see.)
>
> So I am not sure if the jumbo packets are causing bad things to happen,
> or if they are an indication that something bad has already happened.
>

Hmm can someone test ath5k against an Atheros AP using fast frames ?
Maybe they are jumbo frames but they don't have any header etc so that
they look like one frame after un-fragmentation, documentation says
that the current frame is continued in the next descriptor if more is
set to 1 so i guess next buffer might not have the header. If more = 0
then it's our last descriptor and only then other fields such as done,
frame receive ok, rssi etc are valid.

The fact that they are not reported as PHY error packets makes me
wonder why would we have garbage data on our rx buffer. How about the
FRAME_RECEIVE_OK or CRC_ERROR flags (also valid for the last
descriptor) ? Are they set or not ?

-- 
GPG ID: 0xD21DB2DB
As you read this post global entropy rises. Have Fun ;-)
Nick

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-23 16:03               ` Nick Kossifidis
@ 2009-02-23 16:15                 ` Nick Kossifidis
  2009-02-23 16:21                   ` Bob Copeland
  2009-02-23 16:16                 ` pat-lkml
  1 sibling, 1 reply; 66+ messages in thread
From: Nick Kossifidis @ 2009-02-23 16:15 UTC (permalink / raw)
  To: Bob Copeland
  Cc: Jiri Slaby, Sitsofe Wheeler, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

2009/2/23 Nick Kossifidis <mickflemm@gmail.com>:
> 2009/2/23 Bob Copeland <me@bobcopeland.com>:
>> On Mon, 23 Feb 2009 00:20:50 +0100, Jiri Slaby wrote
>>> On 22.2.2009 22:56, Jiri Slaby wrote:
>>> > Well, maybe we should try to reproduce with jumbo packets sent to the
>>> > ath5k receiver, since I think it (1) is not very much test-covered code
>>> > (2) appears to be related.
>>>
>>> According to the spec I have for older chip, there is not `done' flag
>>> set for descriptors which have `more' flag set. We handle this wrongly.
>>> Am I looking correctly, Nick, Luis, Bob?
>>>
>>> I still don't see what could have caused this though.
>>
>> As I understand it, yes, we don't do the right thing when the more flag
>> is set.  We're supposed to keep processing packets until we get one with
>> the done flag, and then all of that is supposed to be merged into a single
>> packet.  Other flags such as the rx rate are only valid on the final
>> packet.
>>
>> However, I did some debugging of this a while ago and concluded that the
>> 'jumbo' frames were largely garbage data.  The dma buffer size is certainly
>> large enough for a standard 802.11 frame and the 'more' flag is only
>> supposed to be set if the dma buffer size is too small for a packet.  In
>> all cases the dma buffer size was 2500+ bytes and the actual contents of
>> the packets looked like random values (I did have encryption turned on,
>> but there were no 802.11 headers I could see.)
>>
>> So I am not sure if the jumbo packets are causing bad things to happen,
>> or if they are an indication that something bad has already happened.
>>
>
> Hmm can someone test ath5k against an Atheros AP using fast frames ?
> Maybe they are jumbo frames but they don't have any header etc so that
> they look like one frame after un-fragmentation, documentation says
> that the current frame is continued in the next descriptor if more is
> set to 1 so i guess next buffer might not have the header. If more = 0
> then it's our last descriptor and only then other fields such as done,
> frame receive ok, rssi etc are valid.
>
> The fact that they are not reported as PHY error packets makes me
> wonder why would we have garbage data on our rx buffer. How about the
> FRAME_RECEIVE_OK or CRC_ERROR flags (also valid for the last
> descriptor) ? Are they set or not ?
>

Typo alert...
rs->rs_more = !!(rx_status->rx_status_0 & AR5K_5212_RX_DESC_STATUS0_MORE);


-- 
GPG ID: 0xD21DB2DB
As you read this post global entropy rises. Have Fun ;-)
Nick

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-23 16:03               ` Nick Kossifidis
  2009-02-23 16:15                 ` Nick Kossifidis
@ 2009-02-23 16:16                 ` pat-lkml
  2009-02-23 16:20                   ` Nick Kossifidis
  1 sibling, 1 reply; 66+ messages in thread
From: pat-lkml @ 2009-02-23 16:16 UTC (permalink / raw)
  To: Nick Kossifidis
  Cc: Bob Copeland, Jiri Slaby, Sitsofe Wheeler, Frederic Weisbecker,
	linux-kernel, linux-wireless, ath5k-devel, Luis R. Rodriguez

On Mon, 23 Feb 2009 18:03:16 +0200, Nick Kossifidis <mickflemm@gmail.com>
wrote:
> 2009/2/23 Bob Copeland <me@bobcopeland.com>:
>> On Mon, 23 Feb 2009 00:20:50 +0100, Jiri Slaby wrote
>>> On 22.2.2009 22:56, Jiri Slaby wrote:
>>> > Well, maybe we should try to reproduce with jumbo packets sent to the
>>> > ath5k receiver, since I think it (1) is not very much test-covered
>>> > code
>>> > (2) appears to be related.
>>>
>>> According to the spec I have for older chip, there is not `done' flag
>>> set for descriptors which have `more' flag set. We handle this wrongly.
>>> Am I looking correctly, Nick, Luis, Bob?
>>>
>>> I still don't see what could have caused this though.
>>
>> As I understand it, yes, we don't do the right thing when the more flag
>> is set.  We're supposed to keep processing packets until we get one with
>> the done flag, and then all of that is supposed to be merged into a
>> single
>> packet.  Other flags such as the rx rate are only valid on the final
>> packet.
>>
>> However, I did some debugging of this a while ago and concluded that the
>> 'jumbo' frames were largely garbage data.  The dma buffer size is
>> certainly
>> large enough for a standard 802.11 frame and the 'more' flag is only
>> supposed to be set if the dma buffer size is too small for a packet.  In
>> all cases the dma buffer size was 2500+ bytes and the actual contents of
>> the packets looked like random values (I did have encryption turned on,
>> but there were no 802.11 headers I could see.)
>>
>> So I am not sure if the jumbo packets are causing bad things to happen,
>> or if they are an indication that something bad has already happened.
>>
> 
> Hmm can someone test ath5k against an Atheros AP using fast frames ?
> Maybe they are jumbo frames but they don't have any header etc so that
> they look like one frame after un-fragmentation, documentation says
> that the current frame is continued in the next descriptor if more is
> set to 1 so i guess next buffer might not have the header. If more = 0
> then it's our last descriptor and only then other fields such as done,
> frame receive ok, rssi etc are valid.

If an ath9k device in AP mode using hostapd counts as an Atheros AP, then I

can test tonight.  If you can send me the steps to test this, I'll do it in

about 8 hours.

Pat Erley

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-23 16:16                 ` pat-lkml
@ 2009-02-23 16:20                   ` Nick Kossifidis
  0 siblings, 0 replies; 66+ messages in thread
From: Nick Kossifidis @ 2009-02-23 16:20 UTC (permalink / raw)
  To: pat-lkml
  Cc: Bob Copeland, Jiri Slaby, Sitsofe Wheeler, Frederic Weisbecker,
	linux-kernel, linux-wireless, ath5k-devel, Luis R. Rodriguez

2009/2/23  <pat-lkml@erley.org>:
> On Mon, 23 Feb 2009 18:03:16 +0200, Nick Kossifidis <mickflemm@gmail.com>
> wrote:
>> 2009/2/23 Bob Copeland <me@bobcopeland.com>:
>>> On Mon, 23 Feb 2009 00:20:50 +0100, Jiri Slaby wrote
>>>> On 22.2.2009 22:56, Jiri Slaby wrote:
>>>> > Well, maybe we should try to reproduce with jumbo packets sent to the
>>>> > ath5k receiver, since I think it (1) is not very much test-covered
>>>> > code
>>>> > (2) appears to be related.
>>>>
>>>> According to the spec I have for older chip, there is not `done' flag
>>>> set for descriptors which have `more' flag set. We handle this wrongly.
>>>> Am I looking correctly, Nick, Luis, Bob?
>>>>
>>>> I still don't see what could have caused this though.
>>>
>>> As I understand it, yes, we don't do the right thing when the more flag
>>> is set.  We're supposed to keep processing packets until we get one with
>>> the done flag, and then all of that is supposed to be merged into a
>>> single
>>> packet.  Other flags such as the rx rate are only valid on the final
>>> packet.
>>>
>>> However, I did some debugging of this a while ago and concluded that the
>>> 'jumbo' frames were largely garbage data.  The dma buffer size is
>>> certainly
>>> large enough for a standard 802.11 frame and the 'more' flag is only
>>> supposed to be set if the dma buffer size is too small for a packet.  In
>>> all cases the dma buffer size was 2500+ bytes and the actual contents of
>>> the packets looked like random values (I did have encryption turned on,
>>> but there were no 802.11 headers I could see.)
>>>
>>> So I am not sure if the jumbo packets are causing bad things to happen,
>>> or if they are an indication that something bad has already happened.
>>>
>>
>> Hmm can someone test ath5k against an Atheros AP using fast frames ?
>> Maybe they are jumbo frames but they don't have any header etc so that
>> they look like one frame after un-fragmentation, documentation says
>> that the current frame is continued in the next descriptor if more is
>> set to 1 so i guess next buffer might not have the header. If more = 0
>> then it's our last descriptor and only then other fields such as done,
>> frame receive ok, rssi etc are valid.
>
> If an ath9k device in AP mode using hostapd counts as an Atheros AP, then I
>
> can test tonight.  If you can send me the steps to test this, I'll do it in
>
> about 8 hours.
>
> Pat Erley
>

As far as i know ath9k doesn't support fast frames ;-(

-- 
GPG ID: 0xD21DB2DB
As you read this post global entropy rises. Have Fun ;-)
Nick

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-23 16:15                 ` Nick Kossifidis
@ 2009-02-23 16:21                   ` Bob Copeland
  2009-02-23 16:27                     ` Nick Kossifidis
  0 siblings, 1 reply; 66+ messages in thread
From: Bob Copeland @ 2009-02-23 16:21 UTC (permalink / raw)
  To: Nick Kossifidis
  Cc: Jiri Slaby, Sitsofe Wheeler, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Mon, Feb 23, 2009 at 06:15:51PM +0200, Nick Kossifidis wrote:
> Typo alert...
> rs->rs_more = !!(rx_status->rx_status_0 & AR5K_5212_RX_DESC_STATUS0_MORE);

I'm slow... what's wrong with it?

-- 
Bob Copeland %% www.bobcopeland.com


^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-23 16:21                   ` Bob Copeland
@ 2009-02-23 16:27                     ` Nick Kossifidis
  2009-02-23 16:30                       ` Bob Copeland
  0 siblings, 1 reply; 66+ messages in thread
From: Nick Kossifidis @ 2009-02-23 16:27 UTC (permalink / raw)
  To: Bob Copeland
  Cc: Jiri Slaby, Sitsofe Wheeler, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

2009/2/23 Bob Copeland <me@bobcopeland.com>:
> On Mon, Feb 23, 2009 at 06:15:51PM +0200, Nick Kossifidis wrote:
>> Typo alert...
>> rs->rs_more = !!(rx_status->rx_status_0 & AR5K_5212_RX_DESC_STATUS0_MORE);
>
> I'm slow... what's wrong with it?
>

"!!"

it should be just

rs->rs_more = (rx_status->rx_status_0 & AR5K_5212_RX_DESC_STATUS0_MORE);




-- 
GPG ID: 0xD21DB2DB
As you read this post global entropy rises. Have Fun ;-)
Nick

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-23 16:27                     ` Nick Kossifidis
@ 2009-02-23 16:30                       ` Bob Copeland
  2009-02-23 16:41                         ` Nick Kossifidis
  0 siblings, 1 reply; 66+ messages in thread
From: Bob Copeland @ 2009-02-23 16:30 UTC (permalink / raw)
  To: Nick Kossifidis
  Cc: Jiri Slaby, Sitsofe Wheeler, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Mon, Feb 23, 2009 at 06:27:35PM +0200, Nick Kossifidis wrote:
> 2009/2/23 Bob Copeland <me@bobcopeland.com>:
> > On Mon, Feb 23, 2009 at 06:15:51PM +0200, Nick Kossifidis wrote:
> >> Typo alert...
> >> rs->rs_more = !!(rx_status->rx_status_0 & AR5K_5212_RX_DESC_STATUS0_MORE);
> >
> > I'm slow... what's wrong with it?
> >
> 
> "!!"
> 
> it should be just
> 
> rs->rs_more = (rx_status->rx_status_0 & AR5K_5212_RX_DESC_STATUS0_MORE);

No, that's intentional.  That was actually a bug we had at some point 
(rs_more is a u8 so the bitwise AND overflowed).  The "!!" makes it zero 
or one so it fits.

-- 
Bob Copeland %% www.bobcopeland.com


^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-23 16:30                       ` Bob Copeland
@ 2009-02-23 16:41                         ` Nick Kossifidis
  2009-02-23 16:44                           ` Bob Copeland
  0 siblings, 1 reply; 66+ messages in thread
From: Nick Kossifidis @ 2009-02-23 16:41 UTC (permalink / raw)
  To: Bob Copeland
  Cc: Jiri Slaby, Sitsofe Wheeler, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

2009/2/23 Bob Copeland <me@bobcopeland.com>:
> On Mon, Feb 23, 2009 at 06:27:35PM +0200, Nick Kossifidis wrote:
>> 2009/2/23 Bob Copeland <me@bobcopeland.com>:
>> > On Mon, Feb 23, 2009 at 06:15:51PM +0200, Nick Kossifidis wrote:
>> >> Typo alert...
>> >> rs->rs_more = !!(rx_status->rx_status_0 & AR5K_5212_RX_DESC_STATUS0_MORE);
>> >
>> > I'm slow... what's wrong with it?
>> >
>>
>> "!!"
>>
>> it should be just
>>
>> rs->rs_more = (rx_status->rx_status_0 & AR5K_5212_RX_DESC_STATUS0_MORE);
>
> No, that's intentional.  That was actually a bug we had at some point
> (rs_more is a u8 so the bitwise AND overflowed).  The "!!" makes it zero
> or one so it fits.
>

AR5K_REG_MS is used for that, we should just shift it as we do with
the other fields and btw i think we must change flags to be bool.



-- 
GPG ID: 0xD21DB2DB
As you read this post global entropy rises. Have Fun ;-)
Nick

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-23 16:41                         ` Nick Kossifidis
@ 2009-02-23 16:44                           ` Bob Copeland
  0 siblings, 0 replies; 66+ messages in thread
From: Bob Copeland @ 2009-02-23 16:44 UTC (permalink / raw)
  To: Nick Kossifidis
  Cc: Jiri Slaby, Sitsofe Wheeler, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Mon, Feb 23, 2009 at 06:41:01PM +0200, Nick Kossifidis wrote:
> > No, that's intentional.  That was actually a bug we had at some point
> > (rs_more is a u8 so the bitwise AND overflowed).  The "!!" makes it zero
> > or one so it fits.
> >
> 
> AR5K_REG_MS is used for that, we should just shift it as we do with
> the other fields and btw i think we must change flags to be bool.

Fine with me, in fact I wrote it that way first but someone suggested
"!!" instead in a patch review.  Either way works.  Also ACK on using 
bool.

-- 
Bob Copeland %% www.bobcopeland.com


^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-23 15:35             ` Bob Copeland
  2009-02-23 16:03               ` Nick Kossifidis
@ 2009-02-23 22:22               ` Jiri Slaby
  2009-02-23 22:43                 ` Jiri Slaby
  1 sibling, 1 reply; 66+ messages in thread
From: Jiri Slaby @ 2009-02-23 22:22 UTC (permalink / raw)
  To: Bob Copeland
  Cc: Sitsofe Wheeler, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Nick Kossifidis, Luis R. Rodriguez

On 23.2.2009 16:35, Bob Copeland wrote:
> As I understand it, yes, we don't do the right thing when the more flag
> is set.  We're supposed to keep processing packets until we get one with
> the done flag, and then all of that is supposed to be merged into a single
> packet.  Other flags such as the rx rate are only valid on the final
> packet.

What I don't understand is how we can proceed further, if we should 
never get done flag set according to the specs for the buffer which has 
more flag set. We should hit (unlikely(ret == -EINPROGRESS)) test everytime.

> So I am not sure if the jumbo packets are causing bad things to happen,
> or if they are an indication that something bad has already happened.

I don't know, it was just an idea. I tried to lower rxbufsize to 1000 
and see no problems so far (except unsupported jumbo warnings and packet 
loss indeed).

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-23 22:22               ` Jiri Slaby
@ 2009-02-23 22:43                 ` Jiri Slaby
  2009-02-23 23:08                   ` Nick Kossifidis
  0 siblings, 1 reply; 66+ messages in thread
From: Jiri Slaby @ 2009-02-23 22:43 UTC (permalink / raw)
  To: Bob Copeland
  Cc: Sitsofe Wheeler, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Nick Kossifidis, Luis R. Rodriguez

On 23.2.2009 23:22, Jiri Slaby wrote:
> We should hit (unlikely(ret == -EINPROGRESS)) test
> everytime.

I get on a AR2413
XX 000 128c0054 cb980203
XX 001 00000000 00000000
XX 000 128c0054 cfb80003
XX 001 00000000 00000000
XX 000 00001420 00000001
ath5k phy5: unsupported jumbo
XX 001 126c001c 80600003
XX 002 00000000 00000000
XX 000 127d8079 44ca0003
XX 001 00000000 00000000
XX 000 128d8079 54cc0003
(count, status_0, status_1)
so it means, it sets done flag even for more flag descs and thus we 
handle it well in this particular case.

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-23 22:43                 ` Jiri Slaby
@ 2009-02-23 23:08                   ` Nick Kossifidis
  2009-02-24 13:58                     ` Bob Copeland
  0 siblings, 1 reply; 66+ messages in thread
From: Nick Kossifidis @ 2009-02-23 23:08 UTC (permalink / raw)
  To: Jiri Slaby
  Cc: Bob Copeland, Sitsofe Wheeler, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

2009/2/24 Jiri Slaby <jirislaby@gmail.com>:
> On 23.2.2009 23:22, Jiri Slaby wrote:
>>
>> We should hit (unlikely(ret == -EINPROGRESS)) test
>> everytime.
>
> I get on a AR2413
> XX 000 128c0054 cb980203
> XX 001 00000000 00000000
> XX 000 128c0054 cfb80003
> XX 001 00000000 00000000
> XX 000 00001420 00000001
> ath5k phy5: unsupported jumbo
> XX 001 126c001c 80600003
> XX 002 00000000 00000000
> XX 000 127d8079 44ca0003
> XX 001 00000000 00000000
> XX 000 128d8079 54cc0003
> (count, status_0, status_1)
> so it means, it sets done flag even for more flag descs and thus we handle
> it well in this particular case.
>

We have to ignore done flag when more flag is set, done flag is only
valid when more flag is cleared according to docs.

Also check out Sam's version here ->
http://svn.freebsd.org/viewvc/base/projects/ath_hal/ar5212/ar5212_recv.c?revision=185406&view=markup

He does an extra check...

	/*
	 * Given the use of a self-linked tail be very sure that the hw is
	 * done with this descriptor; the hw may have done this descriptor
	 * once and picked it up again...make sure the hw has moved on.
	 */
	if ((ands->ds_rxstatus1&AR_Done) == 0 && OS_REG_READ(ah, AR_RXDP) == pa)
		return HAL_EINPROGRESS;



-- 
GPG ID: 0xD21DB2DB
As you read this post global entropy rises. Have Fun ;-)
Nick

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-23 23:08                   ` Nick Kossifidis
@ 2009-02-24 13:58                     ` Bob Copeland
  2009-02-24 21:47                       ` Jiri Slaby
  0 siblings, 1 reply; 66+ messages in thread
From: Bob Copeland @ 2009-02-24 13:58 UTC (permalink / raw)
  To: Nick Kossifidis
  Cc: Jiri Slaby, Sitsofe Wheeler, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Tue, Feb 24, 2009 at 01:08:03AM +0200, Nick Kossifidis wrote:
> He does an extra check...
> 
> 	/*
> 	 * Given the use of a self-linked tail be very sure that the hw is
> 	 * done with this descriptor; the hw may have done this descriptor
> 	 * once and picked it up again...make sure the hw has moved on.
> 	 */
> 	if ((ands->ds_rxstatus1&AR_Done) == 0 && OS_REG_READ(ah, AR_RXDP) == pa)
> 		return HAL_EINPROGRESS;

Sounds like we definitely need that.  If the hw uses up all the dma buffers
in one go, there's a good chance we can send the skb to mac80211 while
the hardware is still using it.  I guess an easy way to test would be to
set the max rx buffers to 3 or so and watch the fireworks.

-- 
Bob Copeland %% www.bobcopeland.com


^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-24 13:58                     ` Bob Copeland
@ 2009-02-24 21:47                       ` Jiri Slaby
  2009-02-25 14:01                         ` Sitsofe Wheeler
  2009-02-26  1:11                         ` Bob Copeland
  0 siblings, 2 replies; 66+ messages in thread
From: Jiri Slaby @ 2009-02-24 21:47 UTC (permalink / raw)
  To: Bob Copeland
  Cc: Nick Kossifidis, Sitsofe Wheeler, Frederic Weisbecker,
	linux-kernel, linux-wireless, ath5k-devel, Luis R. Rodriguez

On 24.2.2009 14:58, Bob Copeland wrote:
> On Tue, Feb 24, 2009 at 01:08:03AM +0200, Nick Kossifidis wrote:
>> He does an extra check...
>>
>> 	/*
>> 	 * Given the use of a self-linked tail be very sure that the hw is
>> 	 * done with this descriptor; the hw may have done this descriptor
>> 	 * once and picked it up again...make sure the hw has moved on.
>> 	 */
>> 	if ((ands->ds_rxstatus1&AR_Done) == 0&&  OS_REG_READ(ah, AR_RXDP) == pa)
>> 		return HAL_EINPROGRESS;
>
> Sounds like we definitely need that.If the hw uses up all the dma buffers
> in one go, there's a good chance we can send the skb to mac80211 while
> the hardware is still using it.  I guess an easy way to test would be to
> set the max rx buffers to 3 or so and watch the fireworks.

I added a check for this in rx tasklet some time ago, because I hit it. 
So no fireworks really should happen ;).

And yes, we ought to use this much better test (I knew nothing about 
AR_RXDP reg) than mine.

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-24 21:47                       ` Jiri Slaby
@ 2009-02-25 14:01                         ` Sitsofe Wheeler
  2009-02-26  1:06                           ` Bob Copeland
  2009-02-26 13:59                           ` Bob Copeland
  2009-02-26  1:11                         ` Bob Copeland
  1 sibling, 2 replies; 66+ messages in thread
From: Sitsofe Wheeler @ 2009-02-25 14:01 UTC (permalink / raw)
  To: Jiri Slaby
  Cc: Bob Copeland, Nick Kossifidis, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Tue, Feb 24, 2009 at 10:47:00PM +0100, Jiri Slaby wrote:
> 
> I added a check for this in rx tasklet some time ago, because I hit it. 
> So no fireworks really should happen ;).
> 
> And yes, we ought to use this much better test (I knew nothing about 
> AR_RXDP reg) than mine.

It has been days since the original BUG occurred and further it
originally had happened in a -tip kernel with kmemcheck compiled into
it. I had been utterly unable to reproduce the error on any network with
a stock 2.6.29-rc6 kernel. Not even the original -tip kernel produced
the error again...

Until just now - the bug reappeared in 2.6.29-rc6 on a different network
to the original report. This time the spiteful "unsupported jumbo"
messages are not too close to the site of the error. Further this time
it happened some time after a resume from suspend (but last time I don't
think I had suspended since boot at all).

[ 1606.129379] PM: Finishing wakeup.
[ 1606.129383] Restarting tasks ... done.
[ 1611.537545] atl2 0000:03:00.0: irq 27 for MSI/MSI-X
[ 1626.032420] wlan0: authenticate with AP 00:1a:1e:e6:cd:60
[ 1626.033808] wlan0: authenticated
[ 1626.033815] wlan0: associate with AP 00:1a:1e:e6:cd:60
[ 1626.037962] wlan0: RX AssocResp from 00:1a:1e:e6:cd:60 (capab=0x431 status=0 aid=1)
[ 1626.038029] wlan0: associated
[ 1741.029383] ath5k phy0: noise floor calibration failed (2462MHz)
[ 2164.890685] ath5k phy0: unsupported jumbo
[ 2419.118202] wlan0: No ProbeResp from current AP 00:1a:1e:e6:cd:60 - assume out of range
[ 2420.602342] wlan0: direct probe to AP 00:1a:1e:e6:cd:60 try 1
[ 2420.602475] wlan0: direct probe to AP 00:1a:1e:e6:cd:60 try 1
[ 2420.602548] wlan0: direct probe to AP 00:1a:1e:e6:cd:60 try 1
[ 2420.802195] wlan0: direct probe to AP 00:1a:1e:e6:cd:60 try 2
[ 2421.022578] wlan0: direct probe to AP 00:1a:1e:e6:cd:60 try 3
[ 2421.222279] wlan0: direct probe to AP 00:1a:1e:e6:cd:60 timed out
[ 2443.258402] wlan0: direct probe to AP 00:1a:1e:e6:cd:60 try 1
[ 2443.289471] wlan0: authenticate with AP 00:13:80:aa:36:81
[ 2443.292227] wlan0: authenticated
[ 2443.292235] wlan0: associate with AP 00:13:80:aa:36:81
[ 2443.299590] wlan0: RX AssocResp from 00:13:80:aa:36:81 (capab=0x431 status=0 aid=117)
[ 2443.299597] wlan0: associated
[ 2469.305184] wlan0: No ProbeResp from current AP 00:13:80:aa:36:81 - assume out of range
[ 2470.735409] wlan0: direct probe to AP 00:13:80:aa:36:81 try 1
[ 2470.735547] wlan0: direct probe to AP 00:13:80:aa:36:81 try 1
[ 2470.735620] wlan0: direct probe to AP 00:13:80:aa:36:81 try 1
[ 2470.935207] wlan0: direct probe to AP 00:13:80:aa:36:81 try 2
[ 2471.135191] wlan0: direct probe to AP 00:13:80:aa:36:81 try 3
[ 2471.335187] wlan0: direct probe to AP 00:13:80:aa:36:81 timed out
[ 2681.733971] ath5k phy0: noise floor calibration timeout (2462MHz)
[ 2702.734367] ath5k phy0: noise floor calibration timeout (2462MHz)
[ 2723.734343] ath5k phy0: noise floor calibration timeout (2462MHz)
[ 2734.734520] ath5k phy0: noise floor calibration timeout (2462MHz)
[ 2766.733898] ath5k phy0: noise floor calibration timeout (2462MHz)
[ 2777.734523] ath5k phy0: noise floor calibration timeout (2462MHz)
[ 3204.214423] wlan0: authenticate with AP 00:03:52:c1:86:e0
[ 3204.216400] wlan0: authenticated
[ 3204.216407] wlan0: associate with AP 00:03:52:c1:86:e0
[ 3204.222674] wlan0: RX AssocResp from 00:03:52:c1:86:e0 (capab=0x431 status=0 aid=6)
[ 3204.222681] wlan0: associated
[ 3265.195472] wlan0 direct probe responded
[ 3265.195483] wlan0: authenticate with AP 00:03:52:c1:86:e0
[ 3265.198018] wlan0: authenticated
[ 3265.198025] wlan0: associate with AP 00:03:52:c1:86:e0
[ 3265.200818] wlan0: RX ReassocResp from 00:03:52:c1:86:e0 (capab=0x431 status=0 aid=6)
[ 3265.200825] wlan0: associated
[ 3335.425723] wlan0: disassociating by local choice (reason=3)
[ 3336.801565] wlan0: authenticate with AP 00:03:52:c1:86:e0
[ 3336.801709] wlan0: authenticate with AP 00:03:52:c1:86:e0
[ 3336.801781] wlan0: authenticate with AP 00:03:52:c1:86:e0
[ 3336.804733] wlan0: authenticated
[ 3336.804741] wlan0: associate with AP 00:03:52:c1:86:e0
[ 3336.809592] wlan0: RX ReassocResp from 00:03:52:c1:86:e0 (capab=0x431 status=0 aid=2)
[ 3336.809599] wlan0: associated
[ 4074.998435] =============================================================================
[ 4074.998447] BUG kmalloc-4096: Poison overwritten
[ 4074.998452] -----------------------------------------------------------------------------
[ 4074.998455] 
[ 4074.998460] INFO: 0xf21fe130-0xf21fe17b. First byte 0x80 instead of 0x6b
[ 4074.998477] INFO: Allocated in dev_alloc_skb+0x21/0x40 age=923 cpu=0 pid=0
[ 4074.998485] INFO: Freed in skb_release_data+0x5e/0x90 age=1 cpu=0 pid=0
[ 4074.998492] INFO: Slab 0xc1643f00 objects=7 used=3 fp=0xf21fe120 flags=0x400020c3
[ 4074.998498] INFO: Object 0xf21fe120 @offset=24864 fp=0xf21f9030
[ 4074.998500] 
[ 4074.998504] Bytes b4 0xf21fe110:  00 00 00 00 af 95 39 00 5a 5a 5a 5a 5a 5a 5a 5a ....�.9.ZZZZZZZZ
[ 4074.998534]   Object 0xf21fe120:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.998562]   Object 0xf21fe130:  80 00 00 00 ff ff ff ff ff ff 00 03 52 dc 7a 81 ....������..R�z.
[ 4074.998590]   Object 0xf21fe140:  00 03 52 dc 7a 81 f0 be 86 25 3c 1c 00 00 00 00 ..R�z.��.%<.....
[ 4074.998618]   Object 0xf21fe150:  64 00 21 04 00 03 4e 41 53 01 08 82 84 8b 96 0c d.!...NAS.......
[ 4074.998646]   Object 0xf21fe160:  12 18 24 03 01 06 05 04 00 01 00 00 2a 01 02 32 ..$.........*..2
[ 4074.998674]   Object 0xf21fe170:  04 30 48 60 6c a0 bb b7 55 a0 bb 55 6b 6b 6b 6b .0H`l.��U.�Ukkkk
[ 4074.998702]   Object 0xf21fe180:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.998730]   Object 0xf21fe190:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.998758]   Object 0xf21fe1a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.998786]   Object 0xf21fe1b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.998814]   Object 0xf21fe1c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.998842]   Object 0xf21fe1d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.998870]   Object 0xf21fe1e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
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[ 4074.999390]   Object 0xf21fea40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fea50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fea60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fea70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fea80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fea90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21feaa0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21feab0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21feac0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fead0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21feae0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21feaf0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21feb00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21feb10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21feb20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21feb30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21feb40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21feb50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21feb60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21feb70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21feb80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21feb90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21feba0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21febb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21febc0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21febd0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21febe0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21febf0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fec00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fec10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fec20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fec30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fec40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fec50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fec60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fec70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fec80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fec90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21feca0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fecb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fecc0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fecd0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fece0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fecf0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fed00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fed10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fed20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fed30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fed40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fed50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fed60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fed70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fed80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fed90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21feda0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fedb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fedc0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fedd0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fede0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fedf0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fee00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fee10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fee20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fee30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fee40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fee50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fee60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fee70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fee80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fee90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21feea0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21feeb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21feec0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21feed0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21feee0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21feef0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fef00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fef10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fef20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fef30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fef40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fef50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fef60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fef70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fef80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fef90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fefa0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fefb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fefc0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fefd0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21fefe0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21feff0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21ff000:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21ff010:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21ff020:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21ff030:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21ff040:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21ff050:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21ff060:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21ff070:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21ff080:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21ff090:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21ff0a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21ff0b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21ff0c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21ff0d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21ff0e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21ff0f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21ff100:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 4074.999390]   Object 0xf21ff110:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 kkkkkkkkkkkkkkk�
[ 4074.999390]  Redzone 0xf21ff120:  bb bb bb bb                                     ����            
[ 4074.999390]  Padding 0xf21ff148:  5a 5a 5a 5a 5a 5a 5a 5a                         ZZZZZZZZ        
[ 4074.999390] Pid: 0, comm: swapper Tainted: G        W  2.6.29-rc6 #67
[ 4074.999390] Call Trace:
[ 4074.999390]  [<c01815a4>] print_trailer+0xb4/0xf0
[ 4074.999390]  [<c0181687>] check_bytes_and_report+0xa7/0xd0
[ 4074.999390]  [<c018241e>] check_object+0x1ae/0x1f0
[ 4074.999390]  [<c018324f>] __slab_alloc+0x46f/0x510
[ 4074.999390]  [<c0184237>] __kmalloc_track_caller+0x127/0x130
[ 4074.999390]  [<c0387081>] ? dev_alloc_skb+0x21/0x40
[ 4074.999390]  [<c0387081>] ? dev_alloc_skb+0x21/0x40
[ 4074.999390]  [<c03869fe>] __alloc_skb+0x4e/0x100
[ 4074.999390]  [<c0387081>] dev_alloc_skb+0x21/0x40
[ 4074.999390]  [<c02e4518>] ath5k_rx_skb_alloc+0x28/0x180
[ 4074.999390]  [<c04073be>] ? _spin_lock+0x3e/0x50
[ 4074.999390]  [<c02e5d4d>] ath5k_tasklet_rx+0x15d/0x700
[ 4074.999390]  [<c01489bb>] ? trace_hardirqs_off+0xb/0x10
[ 4074.999390]  [<c040788c>] ? _spin_unlock_irqrestore+0x3c/0x60
[ 4074.999390]  [<c0142aba>] ? update_wall_time+0x29a/0x7c0
[ 4074.999390]  [<c02dcbdb>] ? ath5k_hw_get_isr+0x6b/0x3d0
[ 4074.999390]  [<c0116a62>] ? read_hpet+0x12/0x20
[ 4074.999390]  [<c02dcf67>] ? ath5k_hw_is_intr_pending+0x27/0x60
[ 4074.999390]  [<c012d4b4>] tasklet_action+0x44/0x90
[ 4074.999390]  [<c012d015>] __do_softirq+0x65/0x110
[ 4074.999390]  [<c012d115>] do_softirq+0x55/0x60
[ 4074.999390]  [<c012d3fc>] irq_exit+0x6c/0x80
[ 4074.999390]  [<c01051d7>] do_IRQ+0x57/0xb0
[ 4074.999390]  [<c010396c>] common_interrupt+0x2c/0x34
[ 4074.999390]  [<c027928c>] ? acpi_idle_enter_bm+0x1ec/0x21d
[ 4074.999390]  [<c035460c>] cpuidle_idle_call+0x6c/0xc0
[ 4074.999390]  [<c0101ebb>] cpu_idle+0x4b/0x70
[ 4074.999390]  [<c03fbebd>] rest_init+0x4d/0x60
[ 4074.999390] FIX kmalloc-4096: Restoring 0xf21fe130-0xf21fe17b=0x6b
[ 4074.999390] 
[ 4074.999390] FIX kmalloc-4096: Marking all objects used
[ 4203.999111] ath5k phy0: unsupported jumbo

NAS is the name of a nearby access point. This is really tough to
reproduce but if there's anything (e.g. ftrace) I can always turn on
that will help you track this thing down let me know. Unfortunately the
machine is an EeePC 900 so any logging would have to be cyclic and held
in RAM...

-- 
Sitsofe | http://sucs.org/~sits/

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-25 14:01                         ` Sitsofe Wheeler
@ 2009-02-26  1:06                           ` Bob Copeland
  2009-02-26 20:53                             ` Jiri Slaby
  2009-02-26 13:59                           ` Bob Copeland
  1 sibling, 1 reply; 66+ messages in thread
From: Bob Copeland @ 2009-02-26  1:06 UTC (permalink / raw)
  To: Sitsofe Wheeler
  Cc: Jiri Slaby, Nick Kossifidis, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Wed, Feb 25, 2009 at 02:01:39PM +0000, Sitsofe Wheeler wrote:
> NAS is the name of a nearby access point. This is really tough to
> reproduce but if there's anything (e.g. ftrace) I can always turn on
> that will help you track this thing down let me know. Unfortunately the
> machine is an EeePC 900 so any logging would have to be cyclic and held
> in RAM...

Hmm, I suppose there could be some error paths under memory pressure that
aren't quite right.  Here's one, but I don't think it can cause any problems,
at least without error spew.

Looking over the code, perhaps there's a race with ath5k_rx_start,
namely sc->rxlink is changed out from under the rxbuflock.  Still can't
immediately see a use-after-free there.

============

ath5k: don't overwrite bf->skbaddr unless pcu mapping fails.

diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c
index 1d77ee9..6d91335 100644
--- a/drivers/net/wireless/ath5k/base.c
+++ b/drivers/net/wireless/ath5k/base.c
@@ -1140,12 +1140,14 @@ ath5k_rxbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf)
 	struct ath5k_hw *ah = sc->ah;
 	struct sk_buff *skb = bf->skb;
 	struct ath5k_desc *ds;
+	dma_addr_t dma_addr;
 
 	if (!skb) {
-		skb = ath5k_rx_skb_alloc(sc, &bf->skbaddr);
+		skb = ath5k_rx_skb_alloc(sc, &dma_addr);
 		if (!skb)
 			return -ENOMEM;
 		bf->skb = skb;
+		bf->skbaddr = dma_addr;
 	}
 
 	/*

-- 
Bob Copeland %% www.bobcopeland.com


^ permalink raw reply related	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-24 21:47                       ` Jiri Slaby
  2009-02-25 14:01                         ` Sitsofe Wheeler
@ 2009-02-26  1:11                         ` Bob Copeland
  1 sibling, 0 replies; 66+ messages in thread
From: Bob Copeland @ 2009-02-26  1:11 UTC (permalink / raw)
  To: Jiri Slaby
  Cc: Nick Kossifidis, Sitsofe Wheeler, Frederic Weisbecker,
	linux-kernel, linux-wireless, ath5k-devel, Luis R. Rodriguez

On Tue, Feb 24, 2009 at 10:47:00PM +0100, Jiri Slaby wrote:
> I added a check for this in rx tasklet some time ago, because I hit it.  
> So no fireworks really should happen ;).
>
> And yes, we ought to use this much better test (I knew nothing about  
> AR_RXDP reg) than mine.

Indeed, it lasted all day for me with only 3 buffers under load, lots of
packet loss though :)

-- 
Bob Copeland %% www.bobcopeland.com


^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-25 14:01                         ` Sitsofe Wheeler
  2009-02-26  1:06                           ` Bob Copeland
@ 2009-02-26 13:59                           ` Bob Copeland
  2009-02-26 17:03                             ` Sitsofe Wheeler
  1 sibling, 1 reply; 66+ messages in thread
From: Bob Copeland @ 2009-02-26 13:59 UTC (permalink / raw)
  To: Sitsofe Wheeler
  Cc: Jiri Slaby, Nick Kossifidis, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Wed, Feb 25, 2009 at 02:01:39PM +0000, Sitsofe Wheeler wrote:
> It has been days since the original BUG occurred and further it
> originally had happened in a -tip kernel with kmemcheck compiled into
> it. I had been utterly unable to reproduce the error on any network with
> a stock 2.6.29-rc6 kernel. Not even the original -tip kernel produced
> the error again...

Can you post your config?  I want to make sure I have all the same
knobs turned on, if I can think of a way to reproduce it.

-- 
Bob Copeland %% www.bobcopeland.com


^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-26 13:59                           ` Bob Copeland
@ 2009-02-26 17:03                             ` Sitsofe Wheeler
  2009-03-02 17:34                               ` [ath5k-devel] " Bob Copeland
  2009-03-03  4:12                               ` Bob Copeland
  0 siblings, 2 replies; 66+ messages in thread
From: Sitsofe Wheeler @ 2009-02-26 17:03 UTC (permalink / raw)
  To: Bob Copeland
  Cc: Jiri Slaby, Nick Kossifidis, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Thu, Feb 26, 2009 at 08:59:39AM -0500, Bob Copeland wrote:
> On Wed, Feb 25, 2009 at 02:01:39PM +0000, Sitsofe Wheeler wrote:
> > It has been days since the original BUG occurred and further it
> > originally had happened in a -tip kernel with kmemcheck compiled into
> > it. I had been utterly unable to reproduce the error on any network with
> > a stock 2.6.29-rc6 kernel. Not even the original -tip kernel produced
> > the error again...

Note that I was able to reproduce it again : )

> Can you post your config?  I want to make sure I have all the same
> knobs turned on, if I can think of a way to reproduce it.

Find it below.

#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.29-rc6
# Mon Feb 23 18:01:55 2009
#
# CONFIG_64BIT is not set
CONFIG_X86_32=y
# CONFIG_X86_64 is not set
CONFIG_X86=y
CONFIG_ARCH_DEFCONFIG="arch/x86/configs/i386_defconfig"
CONFIG_GENERIC_TIME=y
CONFIG_GENERIC_CMOS_UPDATE=y
CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_FAST_CMPXCHG_LOCAL=y
CONFIG_MMU=y
CONFIG_ZONE_DMA=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_IOMAP=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
# CONFIG_RWSEM_GENERIC_SPINLOCK is not set
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_ARCH_HAS_CPU_IDLE_WAIT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
# CONFIG_GENERIC_TIME_VSYSCALL is not set
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HAS_DEFAULT_IDLE=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
# CONFIG_HAVE_SETUP_PER_CPU_AREA is not set
# CONFIG_HAVE_CPUMASK_OF_CPU_MAP is not set
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
# CONFIG_ZONE_DMA32 is not set
CONFIG_ARCH_POPULATES_NODE_MAP=y
# CONFIG_AUDIT_ARCH is not set
CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_X86_BIOS_REBOOT=y
CONFIG_KTIME_SCALAR=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"

#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
# CONFIG_AUDIT is not set

#
# RCU Subsystem
#
CONFIG_CLASSIC_RCU=y
# CONFIG_TREE_RCU is not set
# CONFIG_PREEMPT_RCU is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_PREEMPT_RCU_TRACE is not set
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=17
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y
# CONFIG_GROUP_SCHED is not set
# CONFIG_CGROUPS is not set
# CONFIG_SYSFS_DEPRECATED_V2 is not set
CONFIG_RELAY=y
# CONFIG_NAMESPACES is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_EMBEDDED=y
# CONFIG_UID16 is not set
# CONFIG_SYSCTL_SYSCALL is not set
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
# CONFIG_PCSPKR_PLATFORM is not set
# CONFIG_COMPAT_BRK is not set
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_ANON_INODES=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_PCI_QUIRKS=y
CONFIG_SLUB_DEBUG=y
# CONFIG_SLAB is not set
CONFIG_SLUB=y
# CONFIG_SLOB is not set
# CONFIG_PROFILING is not set
CONFIG_TRACEPOINTS=y
CONFIG_MARKERS=y
CONFIG_HAVE_OPROFILE=y
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_GENERIC_DMA_COHERENT=y
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
# CONFIG_MODULES is not set
CONFIG_BLOCK=y
# CONFIG_LBD is not set
CONFIG_BLK_DEV_IO_TRACE=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_BLK_DEV_INTEGRITY is not set

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
# CONFIG_IOSCHED_AS is not set
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_AS is not set
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
CONFIG_FREEZER=y

#
# Processor type and features
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
# CONFIG_SMP is not set
# CONFIG_SPARSE_IRQ is not set
# CONFIG_X86_MPPARSE is not set
CONFIG_X86_PC=y
# CONFIG_X86_ELAN is not set
# CONFIG_X86_VOYAGER is not set
# CONFIG_X86_GENERICARCH is not set
# CONFIG_X86_VSMP is not set
# CONFIG_X86_RDC321X is not set
# CONFIG_SCHED_OMIT_FRAME_POINTER is not set
# CONFIG_PARAVIRT_GUEST is not set
# CONFIG_MEMTEST is not set
# CONFIG_M386 is not set
# CONFIG_M486 is not set
# CONFIG_M586 is not set
# CONFIG_M586TSC is not set
# CONFIG_M586MMX is not set
# CONFIG_M686 is not set
# CONFIG_MPENTIUMII is not set
# CONFIG_MPENTIUMIII is not set
CONFIG_MPENTIUMM=y
# CONFIG_MPENTIUM4 is not set
# CONFIG_MK6 is not set
# CONFIG_MK7 is not set
# CONFIG_MK8 is not set
# CONFIG_MCRUSOE is not set
# CONFIG_MEFFICEON is not set
# CONFIG_MWINCHIPC6 is not set
# CONFIG_MWINCHIP3D is not set
# CONFIG_MGEODEGX1 is not set
# CONFIG_MGEODE_LX is not set
# CONFIG_MCYRIXIII is not set
# CONFIG_MVIAC3_2 is not set
# CONFIG_MVIAC7 is not set
# CONFIG_MPSC is not set
# CONFIG_MCORE2 is not set
# CONFIG_GENERIC_CPU is not set
# CONFIG_X86_GENERIC is not set
CONFIG_X86_CPU=y
CONFIG_X86_CMPXCHG=y
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_XADD=y
CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_INVLPG=y
CONFIG_X86_BSWAP=y
CONFIG_X86_POPAD_OK=y
CONFIG_X86_INTEL_USERCOPY=y
CONFIG_X86_USE_PPRO_CHECKSUM=y
CONFIG_X86_TSC=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=4
CONFIG_X86_DEBUGCTLMSR=y
CONFIG_PROCESSOR_SELECT=y
CONFIG_CPU_SUP_INTEL=y
# CONFIG_CPU_SUP_CYRIX_32 is not set
# CONFIG_CPU_SUP_AMD is not set
# CONFIG_CPU_SUP_CENTAUR_32 is not set
# CONFIG_CPU_SUP_TRANSMETA_32 is not set
# CONFIG_CPU_SUP_UMC_32 is not set
CONFIG_X86_DS=y
CONFIG_X86_PTRACE_BTS=y
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
CONFIG_DMI=y
# CONFIG_IOMMU_HELPER is not set
# CONFIG_IOMMU_API is not set
CONFIG_NR_CPUS=1
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
CONFIG_X86_UP_APIC=y
CONFIG_X86_UP_IOAPIC=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y
CONFIG_X86_MCE=y
CONFIG_X86_MCE_NONFATAL=y
CONFIG_X86_MCE_P4THERMAL=y
CONFIG_VM86=y
# CONFIG_TOSHIBA is not set
# CONFIG_I8K is not set
# CONFIG_X86_REBOOTFIXUPS is not set
CONFIG_MICROCODE=y
CONFIG_MICROCODE_INTEL=y
# CONFIG_MICROCODE_AMD is not set
CONFIG_MICROCODE_OLD_INTERFACE=y
CONFIG_X86_MSR=y
CONFIG_X86_CPUID=y
# CONFIG_NOHIGHMEM is not set
CONFIG_HIGHMEM4G=y
# CONFIG_HIGHMEM64G is not set
CONFIG_VMSPLIT_3G=y
# CONFIG_VMSPLIT_3G_OPT is not set
# CONFIG_VMSPLIT_2G is not set
# CONFIG_VMSPLIT_2G_OPT is not set
# CONFIG_VMSPLIT_1G is not set
CONFIG_PAGE_OFFSET=0xC0000000
CONFIG_HIGHMEM=y
# CONFIG_ARCH_PHYS_ADDR_T_64BIT is not set
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
# CONFIG_DISCONTIGMEM_MANUAL is not set
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_SPARSEMEM_STATIC=y
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_PHYS_ADDR_T_64BIT is not set
CONFIG_ZONE_DMA_FLAG=1
CONFIG_BOUNCE=y
CONFIG_VIRT_TO_BUS=y
CONFIG_UNEVICTABLE_LRU=y
# CONFIG_HIGHPTE is not set
CONFIG_X86_CHECK_BIOS_CORRUPTION=y
CONFIG_X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK=y
# CONFIG_X86_RESERVE_LOW_64K is not set
# CONFIG_MATH_EMULATION is not set
CONFIG_MTRR=y
CONFIG_MTRR_SANITIZER=y
CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=1
CONFIG_MTRR_SANITIZER_SPARE_REG_NR_DEFAULT=1
CONFIG_X86_PAT=y
# CONFIG_EFI is not set
# CONFIG_SECCOMP is not set
# CONFIG_HZ_100 is not set
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
CONFIG_HZ_1000=y
CONFIG_HZ=1000
CONFIG_SCHED_HRTICK=y
# CONFIG_KEXEC is not set
# CONFIG_CRASH_DUMP is not set
CONFIG_PHYSICAL_START=0x100000
# CONFIG_RELOCATABLE is not set
CONFIG_PHYSICAL_ALIGN=0x100000
# CONFIG_COMPAT_VDSO is not set
# CONFIG_CMDLINE_BOOL is not set
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y

#
# Power management and ACPI options
#
CONFIG_PM=y
CONFIG_PM_DEBUG=y
# CONFIG_PM_VERBOSE is not set
CONFIG_CAN_PM_TRACE=y
CONFIG_PM_TRACE=y
CONFIG_PM_TRACE_RTC=y
CONFIG_PM_SLEEP=y
CONFIG_SUSPEND=y
CONFIG_PM_TEST_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
CONFIG_ACPI=y
CONFIG_ACPI_SLEEP=y
# CONFIG_ACPI_PROCFS is not set
CONFIG_ACPI_PROCFS_POWER=y
CONFIG_ACPI_SYSFS_POWER=y
# CONFIG_ACPI_PROC_EVENT is not set
CONFIG_ACPI_AC=y
CONFIG_ACPI_BATTERY=y
CONFIG_ACPI_BUTTON=y
CONFIG_ACPI_FAN=y
CONFIG_ACPI_DOCK=y
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_THERMAL=y
# CONFIG_ACPI_CUSTOM_DSDT is not set
CONFIG_ACPI_BLACKLIST_YEAR=0
# CONFIG_ACPI_DEBUG is not set
# CONFIG_ACPI_PCI_SLOT is not set
CONFIG_X86_PM_TIMER=y
# CONFIG_ACPI_CONTAINER is not set
# CONFIG_ACPI_SBS is not set
# CONFIG_APM is not set

#
# CPU Frequency scaling
#
# CONFIG_CPU_FREQ is not set
CONFIG_CPU_IDLE=y
CONFIG_CPU_IDLE_GOV_LADDER=y
CONFIG_CPU_IDLE_GOV_MENU=y

#
# Bus options (PCI etc.)
#
CONFIG_PCI=y
# CONFIG_PCI_GOBIOS is not set
# CONFIG_PCI_GOMMCONFIG is not set
# CONFIG_PCI_GODIRECT is not set
# CONFIG_PCI_GOOLPC is not set
CONFIG_PCI_GOANY=y
CONFIG_PCI_BIOS=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCIEPORTBUS=y
CONFIG_PCIEAER=y
CONFIG_PCIEASPM=y
CONFIG_PCIEASPM_DEBUG=y
CONFIG_ARCH_SUPPORTS_MSI=y
CONFIG_PCI_MSI=y
# CONFIG_PCI_LEGACY is not set
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_STUB is not set
# CONFIG_HT_IRQ is not set
CONFIG_ISA_DMA_API=y
# CONFIG_ISA is not set
# CONFIG_MCA is not set
# CONFIG_SCx200 is not set
# CONFIG_OLPC is not set
# CONFIG_PCCARD is not set
# CONFIG_HOTPLUG_PCI is not set

#
# Executable file formats / Emulations
#
CONFIG_BINFMT_ELF=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_HAVE_AOUT=y
# CONFIG_BINFMT_AOUT is not set
# CONFIG_BINFMT_MISC is not set
CONFIG_HAVE_ATOMIC_IOMAP=y
CONFIG_NET=y

#
# Networking options
#
CONFIG_COMPAT_NET_DEV_OPS=y
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_UNIX=y
# CONFIG_NET_KEY is not set
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_FIB_HASH=y
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_ARPD is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
# CONFIG_INET_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_LRO is not set
CONFIG_INET_DIAG=y
CONFIG_INET_TCP_DIAG=y
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
# CONFIG_IPV6 is not set
# CONFIG_NETLABEL is not set
# CONFIG_NETWORK_SECMARK is not set
# CONFIG_NETFILTER is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
# CONFIG_NET_DSA is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_PHONET is not set
CONFIG_WIRELESS=y
CONFIG_CFG80211=y
# CONFIG_CFG80211_REG_DEBUG is not set
# CONFIG_NL80211 is not set
CONFIG_WIRELESS_OLD_REGULATORY=y
CONFIG_WIRELESS_EXT=y
CONFIG_WIRELESS_EXT_SYSFS=y
# CONFIG_LIB80211 is not set
CONFIG_MAC80211=y

#
# Rate control algorithm selection
#
CONFIG_MAC80211_RC_PID=y
CONFIG_MAC80211_RC_MINSTREL=y
# CONFIG_MAC80211_RC_DEFAULT_PID is not set
CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT="minstrel"
# CONFIG_MAC80211_MESH is not set
CONFIG_MAC80211_LEDS=y
# CONFIG_MAC80211_DEBUGFS is not set
# CONFIG_MAC80211_DEBUG_MENU is not set
# CONFIG_WIMAX is not set
CONFIG_RFKILL=y
CONFIG_RFKILL_INPUT=y
CONFIG_RFKILL_LEDS=y
# CONFIG_NET_9P is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
# CONFIG_FIRMWARE_IN_KERNEL is not set
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
# CONFIG_PARPORT is not set
CONFIG_PNP=y
# CONFIG_PNP_DEBUG_MESSAGES is not set

#
# Protocols
#
CONFIG_PNPACPI=y
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=y
# CONFIG_BLK_DEV_CRYPTOLOOP is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_UB is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_BLK_DEV_HD is not set
# CONFIG_MISC_DEVICES is not set
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set

#
# SCSI device support
#
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_TGT is not set
# CONFIG_SCSI_NETLINK is not set
# CONFIG_SCSI_PROC_FS is not set

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
# CONFIG_BLK_DEV_SR is not set
# CONFIG_CHR_DEV_SG is not set
# CONFIG_CHR_DEV_SCH is not set

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
CONFIG_SCSI_MULTI_LUN=y
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set
CONFIG_SCSI_SCAN_ASYNC=y

#
# SCSI Transports
#
# CONFIG_SCSI_SPI_ATTRS is not set
# CONFIG_SCSI_FC_ATTRS is not set
# CONFIG_SCSI_ISCSI_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
# CONFIG_SCSI_LOWLEVEL is not set
# CONFIG_SCSI_DH is not set
CONFIG_ATA=y
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_ATA_ACPI=y
# CONFIG_SATA_PMP is not set
CONFIG_SATA_AHCI=y
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=y
# CONFIG_SATA_SVW is not set
CONFIG_ATA_PIIX=y
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
# CONFIG_SATA_PROMISE is not set
# CONFIG_SATA_SX4 is not set
# CONFIG_SATA_SIL is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_ULI is not set
# CONFIG_SATA_VIA is not set
# CONFIG_SATA_VITESSE is not set
# CONFIG_SATA_INIC162X is not set
# CONFIG_PATA_ACPI is not set
# CONFIG_PATA_ALI is not set
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_CMD64X is not set
# CONFIG_PATA_CS5520 is not set
# CONFIG_PATA_CS5530 is not set
# CONFIG_PATA_CS5535 is not set
# CONFIG_PATA_CS5536 is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
# CONFIG_ATA_GENERIC is not set
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_IT8213 is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_TRIFLEX is not set
# CONFIG_PATA_MARVELL is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_OLDPIIX is not set
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_NS87415 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RZ1000 is not set
# CONFIG_PATA_SC1200 is not set
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_SIL680 is not set
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set
# CONFIG_PATA_PLATFORM is not set
# CONFIG_PATA_SCH is not set
# CONFIG_MD is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#

#
# Enable only one of the two stacks, unless you know what you are doing
#
# CONFIG_FIREWIRE is not set
# CONFIG_IEEE1394 is not set
# CONFIG_I2O is not set
# CONFIG_MACINTOSH_DRIVERS is not set
CONFIG_NETDEVICES=y
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_MACVLAN is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_VETH is not set
# CONFIG_NET_SB1000 is not set
# CONFIG_ARCNET is not set
# CONFIG_PHYLIB is not set
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_TULIP is not set
# CONFIG_HP100 is not set
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
# CONFIG_NET_PCI is not set
# CONFIG_B44 is not set
CONFIG_ATL2=y
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
# CONFIG_TR is not set

#
# Wireless LAN
#
# CONFIG_WLAN_PRE80211 is not set
CONFIG_WLAN_80211=y
# CONFIG_LIBERTAS is not set
# CONFIG_LIBERTAS_THINFIRM is not set
# CONFIG_AIRO is not set
# CONFIG_HERMES is not set
# CONFIG_ATMEL is not set
# CONFIG_PRISM54 is not set
# CONFIG_USB_ZD1201 is not set
# CONFIG_USB_NET_RNDIS_WLAN is not set
# CONFIG_RTL8180 is not set
# CONFIG_RTL8187 is not set
# CONFIG_ADM8211 is not set
# CONFIG_MAC80211_HWSIM is not set
# CONFIG_P54_COMMON is not set
CONFIG_ATH5K=y
CONFIG_ATH5K_DEBUG=y
# CONFIG_ATH9K is not set
# CONFIG_IPW2100 is not set
# CONFIG_IPW2200 is not set
# CONFIG_IWLCORE is not set
# CONFIG_IWLWIFI_LEDS is not set
# CONFIG_IWLAGN is not set
# CONFIG_IWL3945 is not set
# CONFIG_HOSTAP is not set
# CONFIG_B43 is not set
# CONFIG_B43LEGACY is not set
# CONFIG_ZD1211RW is not set
# CONFIG_RT2X00 is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#

#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set
# CONFIG_USB_HSO is not set
# CONFIG_WAN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
# CONFIG_NET_FC is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
# CONFIG_MOUSE_PS2_ALPS is not set
CONFIG_MOUSE_PS2_LOGIPS2PP=y
# CONFIG_MOUSE_PS2_SYNAPTICS is not set
# CONFIG_MOUSE_PS2_LIFEBOOK is not set
# CONFIG_MOUSE_PS2_TRACKPOINT is not set
# CONFIG_MOUSE_PS2_ELANTECH is not set
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_BCM5974 is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_I8042=y
# CONFIG_SERIO_SERPORT is not set
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
# CONFIG_DEVKMEM is not set
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set

#
# Serial drivers
#
# CONFIG_SERIAL_8250 is not set
CONFIG_FIX_EARLYCON_MEM=y

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_JSM is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
# CONFIG_LEGACY_PTYS is not set
# CONFIG_IPMI_HANDLER is not set
# CONFIG_HW_RANDOM is not set
CONFIG_NVRAM=y
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_SONYPI is not set
# CONFIG_MWAVE is not set
# CONFIG_PC8736x_GPIO is not set
# CONFIG_NSC_GPIO is not set
# CONFIG_CS5535_GPIO is not set
# CONFIG_RAW_DRIVER is not set
CONFIG_HPET=y
CONFIG_HPET_MMAP=y
# CONFIG_HANGCHECK_TIMER is not set
# CONFIG_TCG_TPM is not set
# CONFIG_TELCLOCK is not set
CONFIG_DEVPORT=y
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
# CONFIG_I2C_CHARDEV is not set
# CONFIG_I2C_HELPER_AUTO is not set

#
# I2C Algorithms
#
CONFIG_I2C_ALGOBIT=y
# CONFIG_I2C_ALGOPCF is not set
# CONFIG_I2C_ALGOPCA is not set

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_I801 is not set
# CONFIG_I2C_ISCH is not set
# CONFIG_I2C_PIIX4 is not set
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_SIMTEC is not set

#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_PARPORT_LIGHT is not set
# CONFIG_I2C_TAOS_EVM is not set
# CONFIG_I2C_TINY_USB is not set

#
# Graphics adapter I2C/DDC channel drivers
#
# CONFIG_I2C_VOODOO3 is not set

#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_SCx200_ACB is not set

#
# Miscellaneous I2C Chip support
#
# CONFIG_DS1682 is not set
# CONFIG_SENSORS_PCF8574 is not set
# CONFIG_PCF8575 is not set
# CONFIG_SENSORS_PCA9539 is not set
# CONFIG_SENSORS_PCF8591 is not set
# CONFIG_SENSORS_MAX6875 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# CONFIG_I2C_DEBUG_CHIP is not set
# CONFIG_SPI is not set
CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
# CONFIG_GPIOLIB is not set
# CONFIG_W1 is not set
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
# CONFIG_PDA_POWER is not set
# CONFIG_BATTERY_DS2760 is not set
# CONFIG_BATTERY_BQ27x00 is not set
CONFIG_HWMON=y
# CONFIG_HWMON_VID is not set
# CONFIG_SENSORS_ABITUGURU is not set
# CONFIG_SENSORS_ABITUGURU3 is not set
# CONFIG_SENSORS_AD7414 is not set
# CONFIG_SENSORS_AD7418 is not set
# CONFIG_SENSORS_ADM1021 is not set
# CONFIG_SENSORS_ADM1025 is not set
# CONFIG_SENSORS_ADM1026 is not set
# CONFIG_SENSORS_ADM1029 is not set
# CONFIG_SENSORS_ADM1031 is not set
# CONFIG_SENSORS_ADM9240 is not set
# CONFIG_SENSORS_ADT7462 is not set
# CONFIG_SENSORS_ADT7470 is not set
# CONFIG_SENSORS_ADT7473 is not set
# CONFIG_SENSORS_ADT7475 is not set
# CONFIG_SENSORS_K8TEMP is not set
# CONFIG_SENSORS_ASB100 is not set
# CONFIG_SENSORS_ATXP1 is not set
# CONFIG_SENSORS_DS1621 is not set
# CONFIG_SENSORS_I5K_AMB is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_F71882FG is not set
# CONFIG_SENSORS_F75375S is not set
# CONFIG_SENSORS_FSCHER is not set
# CONFIG_SENSORS_FSCPOS is not set
# CONFIG_SENSORS_FSCHMD is not set
# CONFIG_SENSORS_GL518SM is not set
# CONFIG_SENSORS_GL520SM is not set
# CONFIG_SENSORS_CORETEMP is not set
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_LM63 is not set
# CONFIG_SENSORS_LM75 is not set
# CONFIG_SENSORS_LM77 is not set
# CONFIG_SENSORS_LM78 is not set
# CONFIG_SENSORS_LM80 is not set
# CONFIG_SENSORS_LM83 is not set
# CONFIG_SENSORS_LM85 is not set
# CONFIG_SENSORS_LM87 is not set
# CONFIG_SENSORS_LM90 is not set
# CONFIG_SENSORS_LM92 is not set
# CONFIG_SENSORS_LM93 is not set
# CONFIG_SENSORS_LTC4245 is not set
# CONFIG_SENSORS_MAX1619 is not set
# CONFIG_SENSORS_MAX6650 is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_PC87427 is not set
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_DME1737 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47M192 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_ADS7828 is not set
# CONFIG_SENSORS_THMC50 is not set
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_VT8231 is not set
# CONFIG_SENSORS_W83781D is not set
# CONFIG_SENSORS_W83791D is not set
# CONFIG_SENSORS_W83792D is not set
# CONFIG_SENSORS_W83793 is not set
# CONFIG_SENSORS_W83L785TS is not set
# CONFIG_SENSORS_W83L786NG is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
# CONFIG_SENSORS_HDAPS is not set
# CONFIG_SENSORS_LIS3LV02D is not set
# CONFIG_SENSORS_APPLESMC is not set
# CONFIG_HWMON_DEBUG_CHIP is not set
CONFIG_THERMAL=y
CONFIG_THERMAL_HWMON=y
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set

#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_TWL4030_CORE is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_PMIC_DA903X is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM8350_I2C is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_REGULATOR is not set

#
# Multimedia devices
#

#
# Multimedia core support
#
CONFIG_VIDEO_DEV=y
CONFIG_VIDEO_V4L2_COMMON=y
# CONFIG_VIDEO_ALLOW_V4L1 is not set
# CONFIG_VIDEO_V4L1_COMPAT is not set
# CONFIG_DVB_CORE is not set
CONFIG_VIDEO_MEDIA=y

#
# Multimedia drivers
#
CONFIG_MEDIA_TUNER=y
CONFIG_MEDIA_TUNER_CUSTOMIZE=y
# CONFIG_MEDIA_TUNER_SIMPLE is not set
# CONFIG_MEDIA_TUNER_TDA8290 is not set
# CONFIG_MEDIA_TUNER_TDA827X is not set
# CONFIG_MEDIA_TUNER_TDA18271 is not set
# CONFIG_MEDIA_TUNER_TDA9887 is not set
# CONFIG_MEDIA_TUNER_TEA5761 is not set
# CONFIG_MEDIA_TUNER_TEA5767 is not set
# CONFIG_MEDIA_TUNER_MT20XX is not set
# CONFIG_MEDIA_TUNER_MT2060 is not set
# CONFIG_MEDIA_TUNER_MT2266 is not set
# CONFIG_MEDIA_TUNER_MT2131 is not set
# CONFIG_MEDIA_TUNER_QT1010 is not set
# CONFIG_MEDIA_TUNER_XC2028 is not set
# CONFIG_MEDIA_TUNER_XC5000 is not set
# CONFIG_MEDIA_TUNER_MXL5005S is not set
# CONFIG_MEDIA_TUNER_MXL5007T is not set
CONFIG_VIDEO_V4L2=y
CONFIG_VIDEO_CAPTURE_DRIVERS=y
# CONFIG_VIDEO_ADV_DEBUG is not set
# CONFIG_VIDEO_FIXED_MINOR_RANGES is not set
CONFIG_VIDEO_HELPER_CHIPS_AUTO=y
# CONFIG_VIDEO_VIVI is not set
# CONFIG_VIDEO_BT848 is not set
# CONFIG_VIDEO_SAA5246A is not set
# CONFIG_VIDEO_SAA5249 is not set
# CONFIG_VIDEO_SAA7134 is not set
# CONFIG_VIDEO_HEXIUM_ORION is not set
# CONFIG_VIDEO_HEXIUM_GEMINI is not set
# CONFIG_VIDEO_CX88 is not set
# CONFIG_VIDEO_IVTV is not set
# CONFIG_VIDEO_CAFE_CCIC is not set
# CONFIG_SOC_CAMERA is not set
CONFIG_V4L_USB_DRIVERS=y
CONFIG_USB_VIDEO_CLASS=y
# CONFIG_USB_VIDEO_CLASS_INPUT_EVDEV is not set
# CONFIG_USB_GSPCA is not set
# CONFIG_VIDEO_PVRUSB2 is not set
# CONFIG_VIDEO_EM28XX is not set
# CONFIG_VIDEO_USBVISION is not set
# CONFIG_USB_ET61X251 is not set
# CONFIG_USB_SN9C102 is not set
# CONFIG_USB_ZC0301 is not set
# CONFIG_USB_ZR364XX is not set
# CONFIG_USB_STKWEBCAM is not set
# CONFIG_USB_S2255 is not set
# CONFIG_RADIO_ADAPTERS is not set
# CONFIG_DAB is not set

#
# Graphics support
#
CONFIG_AGP=y
# CONFIG_AGP_ALI is not set
# CONFIG_AGP_ATI is not set
# CONFIG_AGP_AMD is not set
# CONFIG_AGP_AMD64 is not set
CONFIG_AGP_INTEL=y
# CONFIG_AGP_NVIDIA is not set
# CONFIG_AGP_SIS is not set
# CONFIG_AGP_SWORKS is not set
# CONFIG_AGP_VIA is not set
# CONFIG_AGP_EFFICEON is not set
CONFIG_DRM=y
# CONFIG_DRM_TDFX is not set
# CONFIG_DRM_R128 is not set
# CONFIG_DRM_RADEON is not set
# CONFIG_DRM_I810 is not set
# CONFIG_DRM_I830 is not set
CONFIG_DRM_I915=y
# CONFIG_DRM_I915_KMS is not set
# CONFIG_DRM_MGA is not set
# CONFIG_DRM_SIS is not set
# CONFIG_DRM_VIA is not set
# CONFIG_DRM_SAVAGE is not set
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
# CONFIG_FB_DDC is not set
CONFIG_FB_BOOT_VESA_SUPPORT=y
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
# CONFIG_FB_SYS_FILLRECT is not set
# CONFIG_FB_SYS_COPYAREA is not set
# CONFIG_FB_SYS_IMAGEBLIT is not set
# CONFIG_FB_FOREIGN_ENDIAN is not set
# CONFIG_FB_SYS_FOPS is not set
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
# CONFIG_FB_BACKLIGHT is not set
# CONFIG_FB_MODE_HELPERS is not set
# CONFIG_FB_TILEBLITTING is not set

#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ARC is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
# CONFIG_FB_VGA16 is not set
CONFIG_FB_VESA=y
# CONFIG_FB_N411 is not set
# CONFIG_FB_HGA is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_I810 is not set
# CONFIG_FB_LE80578 is not set
# CONFIG_FB_INTEL is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_VIA is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_CYBLA is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_GEODE is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
# CONFIG_LCD_CLASS_DEVICE is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=y
# CONFIG_BACKLIGHT_GENERIC is not set
# CONFIG_BACKLIGHT_PROGEAR is not set
# CONFIG_BACKLIGHT_MBP_NVIDIA is not set
# CONFIG_BACKLIGHT_SAHARA is not set

#
# Display device support
#
# CONFIG_DISPLAY_SUPPORT is not set

#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
# CONFIG_VGACON_SOFT_SCROLLBACK is not set
CONFIG_DUMMY_CONSOLE=y
# CONFIG_FRAMEBUFFER_CONSOLE is not set
# CONFIG_LOGO is not set
CONFIG_SOUND=y
# CONFIG_SOUND_OSS_CORE is not set
CONFIG_SND=y
CONFIG_SND_TIMER=y
CONFIG_SND_PCM=y
CONFIG_SND_JACK=y
# CONFIG_SND_SEQUENCER is not set
# CONFIG_SND_MIXER_OSS is not set
# CONFIG_SND_PCM_OSS is not set
CONFIG_SND_HRTIMER=y
CONFIG_SND_DYNAMIC_MINORS=y
# CONFIG_SND_SUPPORT_OLD_API is not set
# CONFIG_SND_VERBOSE_PROCFS is not set
# CONFIG_SND_VERBOSE_PRINTK is not set
CONFIG_SND_DEBUG=y
# CONFIG_SND_DEBUG_VERBOSE is not set
CONFIG_SND_VMASTER=y
# CONFIG_SND_DRIVERS is not set
CONFIG_SND_PCI=y
# CONFIG_SND_AD1889 is not set
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALS4000 is not set
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AW2 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_OXYGEN is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_CS5530 is not set
# CONFIG_SND_CS5535AUDIO is not set
# CONFIG_SND_DARLA20 is not set
# CONFIG_SND_GINA20 is not set
# CONFIG_SND_LAYLA20 is not set
# CONFIG_SND_DARLA24 is not set
# CONFIG_SND_GINA24 is not set
# CONFIG_SND_LAYLA24 is not set
# CONFIG_SND_MONA is not set
# CONFIG_SND_MIA is not set
# CONFIG_SND_ECHO3G is not set
# CONFIG_SND_INDIGO is not set
# CONFIG_SND_INDIGOIO is not set
# CONFIG_SND_INDIGODJ is not set
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
CONFIG_SND_HDA_INTEL=y
# CONFIG_SND_HDA_HWDEP is not set
# CONFIG_SND_HDA_INPUT_BEEP is not set
CONFIG_SND_HDA_CODEC_REALTEK=y
# CONFIG_SND_HDA_CODEC_ANALOG is not set
# CONFIG_SND_HDA_CODEC_SIGMATEL is not set
# CONFIG_SND_HDA_CODEC_VIA is not set
# CONFIG_SND_HDA_CODEC_ATIHDMI is not set
# CONFIG_SND_HDA_CODEC_NVHDMI is not set
# CONFIG_SND_HDA_CODEC_INTELHDMI is not set
# CONFIG_SND_HDA_CODEC_CONEXANT is not set
# CONFIG_SND_HDA_CODEC_CMEDIA is not set
# CONFIG_SND_HDA_CODEC_SI3054 is not set
# CONFIG_SND_HDA_GENERIC is not set
CONFIG_SND_HDA_POWER_SAVE=y
CONFIG_SND_HDA_POWER_SAVE_DEFAULT=2
# CONFIG_SND_HDSP is not set
# CONFIG_SND_HDSPM is not set
# CONFIG_SND_HIFIER is not set
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_PCXHR is not set
# CONFIG_SND_RIPTIDE is not set
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SIS7019 is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set
# CONFIG_SND_USB is not set
# CONFIG_SND_SOC is not set
# CONFIG_SOUND_PRIME is not set
# CONFIG_HID_SUPPORT is not set
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=y
# CONFIG_USB_DEBUG is not set
# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set

#
# Miscellaneous USB options
#
CONFIG_USB_DEVICEFS=y
# CONFIG_USB_DEVICE_CLASS is not set
# CONFIG_USB_DYNAMIC_MINORS is not set
CONFIG_USB_SUSPEND=y
# CONFIG_USB_OTG is not set
# CONFIG_USB_OTG_WHITELIST is not set
# CONFIG_USB_OTG_BLACKLIST_HUB is not set
# CONFIG_USB_MON is not set
# CONFIG_USB_WUSB is not set
# CONFIG_USB_WUSB_CBAF is not set

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
CONFIG_USB_EHCI_HCD=y
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
# CONFIG_USB_OHCI_HCD is not set
CONFIG_USB_UHCI_HCD=y
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_WHCI_HCD is not set
# CONFIG_USB_HWA_HCD is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may also be needed;
#

#
# see USB_STORAGE Help for more information
#
CONFIG_USB_STORAGE=y
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_LIBUSUAL is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set

#
# USB port drivers
#
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_BERRY_CHARGE is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_PHIDGET is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_VST is not set
# CONFIG_USB_GADGET is not set

#
# OTG and related infrastructure
#
# CONFIG_UWB is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y

#
# LED drivers
#
# CONFIG_LEDS_ALIX2 is not set
# CONFIG_LEDS_PCA9532 is not set
# CONFIG_LEDS_CLEVO_MAIL is not set
# CONFIG_LEDS_PCA955X is not set

#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
# CONFIG_LEDS_TRIGGER_TIMER is not set
# CONFIG_LEDS_TRIGGER_HEARTBEAT is not set
# CONFIG_LEDS_TRIGGER_BACKLIGHT is not set
# CONFIG_LEDS_TRIGGER_DEFAULT_ON is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
# CONFIG_EDAC is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
# CONFIG_RTC_DRV_RX8581 is not set

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
CONFIG_RTC_DRV_CMOS=y
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_V3020 is not set

#
# on-CPU RTC drivers
#
# CONFIG_DMADEVICES is not set
# CONFIG_UIO is not set
# CONFIG_STAGING is not set
CONFIG_X86_PLATFORM_DEVICES=y
# CONFIG_ACER_WMI is not set
# CONFIG_ASUS_LAPTOP is not set
# CONFIG_FUJITSU_LAPTOP is not set
# CONFIG_TC1100_WMI is not set
# CONFIG_MSI_LAPTOP is not set
# CONFIG_PANASONIC_LAPTOP is not set
# CONFIG_COMPAL_LAPTOP is not set
# CONFIG_SONY_LAPTOP is not set
# CONFIG_THINKPAD_ACPI is not set
# CONFIG_INTEL_MENLOW is not set
CONFIG_EEEPC_LAPTOP=y
# CONFIG_ACPI_WMI is not set
# CONFIG_ACPI_ASUS is not set
# CONFIG_ACPI_TOSHIBA is not set

#
# Firmware Drivers
#
# CONFIG_EDD is not set
# CONFIG_FIRMWARE_MEMMAP is not set
# CONFIG_DELL_RBU is not set
# CONFIG_DCDBAS is not set
# CONFIG_DMIID is not set
# CONFIG_ISCSI_IBFT_FIND is not set

#
# File systems
#
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
# CONFIG_EXT2_FS_SECURITY is not set
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_XATTR=y
CONFIG_EXT3_FS_POSIX_ACL=y
# CONFIG_EXT3_FS_SECURITY is not set
# CONFIG_EXT4_FS is not set
CONFIG_JBD=y
# CONFIG_JBD_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_FILE_LOCKING=y
# CONFIG_XFS_FS is not set
# CONFIG_OCFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_DNOTIFY is not set
CONFIG_INOTIFY=y
CONFIG_INOTIFY_USER=y
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
CONFIG_FUSE_FS=y

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
# CONFIG_ZISOFS is not set
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=y
# CONFIG_MSDOS_FS is not set
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_HUGETLBFS is not set
# CONFIG_HUGETLB_PAGE is not set
# CONFIG_CONFIGFS_FS is not set
# CONFIG_MISC_FILESYSTEMS is not set
# CONFIG_NETWORK_FILESYSTEMS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="cp437"
CONFIG_NLS_CODEPAGE_437=y
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
# CONFIG_NLS_ASCII is not set
CONFIG_NLS_ISO8859_1=y
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
CONFIG_NLS_UTF8=y
# CONFIG_DLM is not set

#
# Kernel hacking
#
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_PRINTK_TIME=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_FRAME_WARN=1024
CONFIG_MAGIC_SYSRQ=y
# CONFIG_UNUSED_SYMBOLS is not set
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_SHIRQ=y
CONFIG_DETECT_SOFTLOCKUP=y
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
CONFIG_SCHED_DEBUG=y
CONFIG_SCHEDSTATS=y
CONFIG_TIMER_STATS=y
CONFIG_DEBUG_OBJECTS=y
CONFIG_DEBUG_OBJECTS_SELFTEST=y
CONFIG_DEBUG_OBJECTS_FREE=y
CONFIG_DEBUG_OBJECTS_TIMERS=y
CONFIG_DEBUG_OBJECTS_ENABLE_DEFAULT=1
CONFIG_SLUB_DEBUG_ON=y
# CONFIG_SLUB_STATS is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_LOCK_ALLOC=y
CONFIG_PROVE_LOCKING=y
CONFIG_LOCKDEP=y
# CONFIG_LOCK_STAT is not set
CONFIG_DEBUG_LOCKDEP=y
CONFIG_TRACE_IRQFLAGS=y
CONFIG_DEBUG_SPINLOCK_SLEEP=y
CONFIG_DEBUG_LOCKING_API_SELFTESTS=y
CONFIG_STACKTRACE=y
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_HIGHMEM=y
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_INFO is not set
CONFIG_DEBUG_VM=y
CONFIG_DEBUG_VIRTUAL=y
CONFIG_DEBUG_WRITECOUNT=y
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_DEBUG_LIST=y
CONFIG_DEBUG_SG=y
CONFIG_DEBUG_NOTIFIERS=y
CONFIG_ARCH_WANT_FRAME_POINTERS=y
CONFIG_FRAME_POINTER=y
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_BACKTRACE_SELF_TEST=y
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_FAULT_INJECTION is not set
CONFIG_LATENCYTOP=y
CONFIG_USER_STACKTRACE_SUPPORT=y
CONFIG_NOP_TRACER=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_HW_BRANCH_TRACER=y
CONFIG_RING_BUFFER=y
CONFIG_TRACING=y

#
# Tracers
#
CONFIG_FUNCTION_TRACER=y
# CONFIG_FUNCTION_GRAPH_TRACER is not set
# CONFIG_IRQSOFF_TRACER is not set
# CONFIG_SYSPROF_TRACER is not set
# CONFIG_SCHED_TRACER is not set
CONFIG_CONTEXT_SWITCH_TRACER=y
CONFIG_BOOT_TRACER=y
# CONFIG_TRACE_BRANCH_PROFILING is not set
CONFIG_POWER_TRACER=y
# CONFIG_STACK_TRACER is not set
# CONFIG_HW_BRANCH_TRACER is not set
CONFIG_DYNAMIC_FTRACE=y
CONFIG_FTRACE_MCOUNT_RECORD=y
# CONFIG_MMIOTRACE is not set
# CONFIG_PROVIDE_OHCI1394_DMA_INIT is not set
# CONFIG_DYNAMIC_PRINTK_DEBUG is not set
# CONFIG_SAMPLES is not set
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_KGDB is not set
CONFIG_STRICT_DEVMEM=y
# CONFIG_X86_VERBOSE_BOOTUP is not set
# CONFIG_EARLY_PRINTK is not set
CONFIG_DEBUG_STACKOVERFLOW=y
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_X86_PTDUMP is not set
CONFIG_DEBUG_RODATA=y
CONFIG_DEBUG_RODATA_TEST=y
# CONFIG_4KSTACKS is not set
CONFIG_DOUBLEFAULT=y
CONFIG_HAVE_MMIOTRACE_SUPPORT=y
CONFIG_IO_DELAY_TYPE_0X80=0
CONFIG_IO_DELAY_TYPE_0XED=1
CONFIG_IO_DELAY_TYPE_UDELAY=2
CONFIG_IO_DELAY_TYPE_NONE=3
CONFIG_IO_DELAY_0X80=y
# CONFIG_IO_DELAY_0XED is not set
# CONFIG_IO_DELAY_UDELAY is not set
# CONFIG_IO_DELAY_NONE is not set
CONFIG_DEFAULT_IO_DELAY_TYPE=0
# CONFIG_DEBUG_BOOT_PARAMS is not set
CONFIG_CPA_DEBUG=y
CONFIG_OPTIMIZE_INLINING=y

#
# Security options
#
# CONFIG_KEYS is not set
CONFIG_SECURITY=y
# CONFIG_SECURITYFS is not set
# CONFIG_SECURITY_NETWORK is not set
# CONFIG_SECURITY_PATH is not set
# CONFIG_SECURITY_FILE_CAPABILITIES is not set
# CONFIG_SECURITY_ROOTPLUG is not set
CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR=65536
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
# CONFIG_CRYPTO_FIPS is not set
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_GF128MUL is not set
# CONFIG_CRYPTO_NULL is not set
# CONFIG_CRYPTO_CRYPTD is not set
# CONFIG_CRYPTO_AUTHENC is not set

#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_SEQIV is not set

#
# Block modes
#
# CONFIG_CRYPTO_CBC is not set
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
CONFIG_CRYPTO_ECB=y
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set

#
# Hash modes
#
# CONFIG_CRYPTO_HMAC is not set
# CONFIG_CRYPTO_XCBC is not set

#
# Digest
#
# CONFIG_CRYPTO_CRC32C is not set
# CONFIG_CRYPTO_CRC32C_INTEL is not set
# CONFIG_CRYPTO_MD4 is not set
# CONFIG_CRYPTO_MD5 is not set
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
# CONFIG_CRYPTO_SHA1 is not set
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set

#
# Ciphers
#
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_586=y
# CONFIG_CRYPTO_ANUBIS is not set
CONFIG_CRYPTO_ARC4=y
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
# CONFIG_CRYPTO_DES is not set
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_SALSA20_586 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set
# CONFIG_CRYPTO_TWOFISH_586 is not set

#
# Compression
#
# CONFIG_CRYPTO_DEFLATE is not set
# CONFIG_CRYPTO_LZO is not set

#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
CONFIG_HAVE_KVM=y
# CONFIG_VIRTUALIZATION is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_GENERIC_FIND_FIRST_BIT=y
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_FIND_LAST_BIT=y
# CONFIG_CRC_CCITT is not set
# CONFIG_CRC16 is not set
# CONFIG_CRC_T10DIF is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
CONFIG_PLIST=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y

-- 
Sitsofe | http://sucs.org/~sits/

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-26  1:06                           ` Bob Copeland
@ 2009-02-26 20:53                             ` Jiri Slaby
  2009-02-26 21:05                               ` Bob Copeland
  0 siblings, 1 reply; 66+ messages in thread
From: Jiri Slaby @ 2009-02-26 20:53 UTC (permalink / raw)
  To: Bob Copeland
  Cc: Sitsofe Wheeler, Jiri Slaby, Nick Kossifidis,
	Frederic Weisbecker, linux-kernel, linux-wireless, ath5k-devel,
	Luis R. Rodriguez

On 26.2.2009 02:06, Bob Copeland wrote:
> --- a/drivers/net/wireless/ath5k/base.c
> +++ b/drivers/net/wireless/ath5k/base.c
> @@ -1140,12 +1140,14 @@ ath5k_rxbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf)
>   	struct ath5k_hw *ah = sc->ah;
>   	struct sk_buff *skb = bf->skb;
>   	struct ath5k_desc *ds;
> +	dma_addr_t dma_addr;
>
>   	if (!skb) {
> -		skb = ath5k_rx_skb_alloc(sc,&bf->skbaddr);
> +		skb = ath5k_rx_skb_alloc(sc,&dma_addr);
>   		if (!skb)
>   			return -ENOMEM;
>   		bf->skb = skb;
> +		bf->skbaddr = dma_addr;

Hmm, rather than the caller, ath5k_rx_skb_alloc is wrong here in my 
eyes. It shouldn't touch the second parameter unless it knows it won't 
fail anymore.

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-26 20:53                             ` Jiri Slaby
@ 2009-02-26 21:05                               ` Bob Copeland
  0 siblings, 0 replies; 66+ messages in thread
From: Bob Copeland @ 2009-02-26 21:05 UTC (permalink / raw)
  To: Jiri Slaby
  Cc: Sitsofe Wheeler, Nick Kossifidis, Frederic Weisbecker,
	linux-kernel, linux-wireless, ath5k-devel, Luis R. Rodriguez

On Thu, 26 Feb 2009 21:53:08 +0100, Jiri Slaby wrote
> On 26.2.2009 02:06, Bob Copeland wrote:
> > --- a/drivers/net/wireless/ath5k/base.c
> > +++ b/drivers/net/wireless/ath5k/base.c
> > @@ -1140,12 +1140,14 @@ ath5k_rxbuf_setup(struct ath5k_softc *sc, struct
ath5k_buf *bf)
> >   	struct ath5k_hw *ah = sc->ah;
> >   	struct sk_buff *skb = bf->skb;
> >   	struct ath5k_desc *ds;
> > +	dma_addr_t dma_addr;
> >
> >   	if (!skb) {
> > -		skb = ath5k_rx_skb_alloc(sc,&bf->skbaddr);
> > +		skb = ath5k_rx_skb_alloc(sc,&dma_addr);
> >   		if (!skb)
> >   			return -ENOMEM;
> >   		bf->skb = skb;
> > +		bf->skbaddr = dma_addr;
> 
> Hmm, rather than the caller, ath5k_rx_skb_alloc is wrong here in my 
> eyes. It shouldn't touch the second parameter unless it knows it won't 
> fail anymore.

Sure, the temporary could go there instead.  It's a consequence of my
making ath5k_rx_skb_alloc() as much as possible a straight code move
from the original, which IIRC would also clobber bf->skbaddr on the
error path.

-- 
Bob Copeland %% www.bobcopeland.com



^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [ath5k-devel] [TIP] BUG kmalloc-4096: Poison overwritten  (ath5k_rx_skb_alloc)
  2009-02-26 17:03                             ` Sitsofe Wheeler
@ 2009-03-02 17:34                               ` Bob Copeland
  2009-03-03  4:12                               ` Bob Copeland
  1 sibling, 0 replies; 66+ messages in thread
From: Bob Copeland @ 2009-03-02 17:34 UTC (permalink / raw)
  To: Sitsofe Wheeler
  Cc: Jiri Slaby, Frederic Weisbecker, linux-wireless, linux-kernel,
	ath5k-devel

On Thu, Feb 26, 2009 at 12:03 PM, Sitsofe Wheeler <sitsofe@yahoo.com> wrote:
> On Thu, Feb 26, 2009 at 08:59:39AM -0500, Bob Copeland wrote:
>> On Wed, Feb 25, 2009 at 02:01:39PM +0000, Sitsofe Wheeler wrote:
>> > It has been days since the original BUG occurred and further it
>> > originally had happened in a -tip kernel with kmemcheck compiled into
>> > it. I had been utterly unable to reproduce the error on any network with
>> > a stock 2.6.29-rc6 kernel. Not even the original -tip kernel produced
>> > the error again...
>
> Note that I was able to reproduce it again : )

So, I took this config and tried a few things without success:

 - turned on failslab fault injection
 - added various mdelay()s to try to widen theoretical race conditions
 - generated traffic with iperf and 'iwlist wlan0 scan' (as root in a loop)

At this point, I think ftrace is the way to go.  I guess a good start
would be the functions in:

grep 'ath5k' available_filter_functions | \
    egrep -v '(debug)|(eeprom)|(hw)|(intr)'

-- 
Bob Copeland %% www.bobcopeland.com

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-02-26 17:03                             ` Sitsofe Wheeler
  2009-03-02 17:34                               ` [ath5k-devel] " Bob Copeland
@ 2009-03-03  4:12                               ` Bob Copeland
  2009-03-03 20:03                                 ` Sitsofe Wheeler
  1 sibling, 1 reply; 66+ messages in thread
From: Bob Copeland @ 2009-03-03  4:12 UTC (permalink / raw)
  To: Sitsofe Wheeler
  Cc: Jiri Slaby, Nick Kossifidis, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Thu, Feb 26, 2009 at 05:03:39PM +0000, Sitsofe Wheeler wrote:
> 
> Note that I was able to reproduce it again : )

By the way, here's the theoretical race I was alluding to.  ath5k_reset 
happens pretty frequently when scanning, and it's possible that the rx
tasklet is run on another cpu after interrupts are turned off, but
it's a small window and I couldn't trigger it with any mdelays.

[PATCH] ath5k: manipulate rxlink and descriptor address under rxbuf lock

Grabbing an ath5k_buf then dropping the lock is racy because the
referenced descriptor can be obtained in another thread and released
before the buffer is handed to the hardware.  Likewise, manipulating
sc->rxlink without the lock can lead to having multiple self-linked
hardware descriptors.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
---
 drivers/net/wireless/ath5k/base.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c
index 8d4b11c..0d3adb5 100644
--- a/drivers/net/wireless/ath5k/base.c
+++ b/drivers/net/wireless/ath5k/base.c
@@ -1586,9 +1586,8 @@ ath5k_rx_start(struct ath5k_softc *sc)
 	ATH5K_DBG(sc, ATH5K_DEBUG_RESET, "cachelsz %u rxbufsize %u\n",
 		sc->cachelsz, sc->rxbufsize);
 
-	sc->rxlink = NULL;
-
 	spin_lock_bh(&sc->rxbuflock);
+	sc->rxlink = NULL;
 	list_for_each_entry(bf, &sc->rxbuf, list) {
 		ret = ath5k_rxbuf_setup(sc, bf);
 		if (ret != 0) {
@@ -1597,9 +1596,9 @@ ath5k_rx_start(struct ath5k_softc *sc)
 		}
 	}
 	bf = list_first_entry(&sc->rxbuf, struct ath5k_buf, list);
+	ath5k_hw_set_rxdp(ah, bf->daddr);
 	spin_unlock_bh(&sc->rxbuflock);
 
-	ath5k_hw_set_rxdp(ah, bf->daddr);
 	ath5k_hw_start_rx_dma(ah);	/* enable recv descriptors */
 	ath5k_mode_setup(sc);		/* set filters, etc. */
 	ath5k_hw_start_rx_pcu(ah);	/* re-enable PCU/DMA engine */
-- 
1.6.0.6



-- 
Bob Copeland %% www.bobcopeland.com


^ permalink raw reply related	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-03-03  4:12                               ` Bob Copeland
@ 2009-03-03 20:03                                 ` Sitsofe Wheeler
  2009-03-04 12:07                                   ` Bob Copeland
  0 siblings, 1 reply; 66+ messages in thread
From: Sitsofe Wheeler @ 2009-03-03 20:03 UTC (permalink / raw)
  To: Bob Copeland
  Cc: Jiri Slaby, Nick Kossifidis, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Mon, Mar 02, 2009 at 11:12:22PM -0500, Bob Copeland wrote:
> On Thu, Feb 26, 2009 at 05:03:39PM +0000, Sitsofe Wheeler wrote:
> > 
> > Note that I was able to reproduce it again : )
> 
> By the way, here's the theoretical race I was alluding to.  ath5k_reset 
> happens pretty frequently when scanning, and it's possible that the rx
> tasklet is run on another cpu after interrupts are turned off, but

The machine where this fault happened is a single core non-symmetric
multithreading EeePC 900 with a Celeron M 900 using a voluntary preempt
kernel (so I doubt this is due to tasklets being run on another CPU)...

I am a bit unsure which patches you want me to be testing though...

-- 
Sitsofe | http://sucs.org/~sits/

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-03-03 20:03                                 ` Sitsofe Wheeler
@ 2009-03-04 12:07                                   ` Bob Copeland
  2009-03-06  9:42                                     ` Sitsofe Wheeler
  0 siblings, 1 reply; 66+ messages in thread
From: Bob Copeland @ 2009-03-04 12:07 UTC (permalink / raw)
  To: Sitsofe Wheeler
  Cc: Jiri Slaby, Nick Kossifidis, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Tue, Mar 03, 2009 at 08:03:52PM +0000, Sitsofe Wheeler wrote:
> The machine where this fault happened is a single core non-symmetric
> multithreading EeePC 900 with a Celeron M 900 using a voluntary preempt
> kernel (so I doubt this is due to tasklets being run on another CPU)...

This particular one could still happen on UP, provided interrupts were
enabled in ath5k_rx_start (I don't think that's very likely, though.  
I tried warning on that case and didn't hit it).

> I am a bit unsure which patches you want me to be testing though...

None.  Perhaps it's wishful thinking but a function trace for the few
minutes prior to the poison would be useful.  A good replicator might
be to run a sequence of automatic suspend/resume with pm_test, in 
parallel with iwlist wlan0 scan (as root, so scans are actually 
performed), in parallel with iperf or ping.  I didn't personally have
luck with that workload, though.

-- 
Bob Copeland %% www.bobcopeland.com


^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-03-04 12:07                                   ` Bob Copeland
@ 2009-03-06  9:42                                     ` Sitsofe Wheeler
  2009-03-07  4:47                                       ` Bob Copeland
  2009-03-08  3:09                                       ` Bob Copeland
  0 siblings, 2 replies; 66+ messages in thread
From: Sitsofe Wheeler @ 2009-03-06  9:42 UTC (permalink / raw)
  To: Bob Copeland
  Cc: Jiri Slaby, Nick Kossifidis, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Wed, Mar 04, 2009 at 07:07:59AM -0500, Bob Copeland wrote:
> On Tue, Mar 03, 2009 at 08:03:52PM +0000, Sitsofe Wheeler wrote:
> 
> None.  Perhaps it's wishful thinking but a function trace for the few
> minutes prior to the poison would be useful.  A good replicator might
> be to run a sequence of automatic suspend/resume with pm_test, in 
> parallel with iwlist wlan0 scan (as root, so scans are actually 
> performed), in parallel with iperf or ping.  I didn't personally have
> luck with that workload, though.

Forcing the scans and pings didn't seem to make the issue occur.
Unfortunately I can't quite provide you what you were asking for...  I
started the function_tracer feature in /sys/kernel/debug/tracing and put
the buffer size to 153600kb (previously I had set it higher and
successfully OOMd my box : ). Unfortunately I had no filter so this was
not enough for all that long of a log (maybe about 6 seconds). I had a
small script that did the following:

watch -n1 'if `tail -1000 /var/log/kern.log | grep -q Poison`; then echo
0 > /sys/kernel/debug/tracing/tracing_on; cat
/sys/kernel/debug/tracing/trace | gzip > /tmp/trace.txt.gz ; fi'

(the script is obviously flawed but it did the job)

I've put up results on http://sucs.org/~sits/test/eeepc-debug/20090306/
and I think the type that kmalloc notices is 4154504125.579778 . There
is also a pre grepped log of (ieee|ath5k) in that directory.

I'll try and act on your filtering suggestions next time but I didn't
have too much time to get this going...

-- 
Sitsofe | http://sucs.org/~sits/

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-03-06  9:42                                     ` Sitsofe Wheeler
@ 2009-03-07  4:47                                       ` Bob Copeland
  2009-03-07  8:04                                         ` Sitsofe Wheeler
  2009-03-08  3:09                                       ` Bob Copeland
  1 sibling, 1 reply; 66+ messages in thread
From: Bob Copeland @ 2009-03-07  4:47 UTC (permalink / raw)
  To: Sitsofe Wheeler
  Cc: Jiri Slaby, Nick Kossifidis, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Fri, Mar 06, 2009 at 09:42:49AM +0000, Sitsofe Wheeler wrote:
> Unfortunately I can't quite provide you what you were asking for... 

Well, this is great so far!  It'll take some time to dig through it
but it looks useful.

I saw _get_tsf64 in the trace; were you using ad-hoc/ibss mode, or 
is that just a weird artifact?

-- 
Bob Copeland %% www.bobcopeland.com


^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-03-07  4:47                                       ` Bob Copeland
@ 2009-03-07  8:04                                         ` Sitsofe Wheeler
  2009-03-07 13:34                                           ` Bob Copeland
  0 siblings, 1 reply; 66+ messages in thread
From: Sitsofe Wheeler @ 2009-03-07  8:04 UTC (permalink / raw)
  To: Bob Copeland
  Cc: Jiri Slaby, Nick Kossifidis, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Fri, Mar 06, 2009 at 11:47:32PM -0500, Bob Copeland wrote:
>
> Well, this is great so far!  It'll take some time to dig through it
> but it looks useful.
> 
> I saw _get_tsf64 in the trace; were you using ad-hoc/ibss mode, or 
> is that just a weird artifact?

Sounds like a werid artifact - I only (intentionally) connect to access
points.

-- 
Sitsofe | http://sucs.org/~sits/

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-03-07  8:04                                         ` Sitsofe Wheeler
@ 2009-03-07 13:34                                           ` Bob Copeland
  0 siblings, 0 replies; 66+ messages in thread
From: Bob Copeland @ 2009-03-07 13:34 UTC (permalink / raw)
  To: Sitsofe Wheeler
  Cc: Jiri Slaby, Nick Kossifidis, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Sat, Mar 07, 2009 at 08:04:22AM +0000, Sitsofe Wheeler wrote:
> On Fri, Mar 06, 2009 at 11:47:32PM -0500, Bob Copeland wrote:
> > I saw _get_tsf64 in the trace; were you using ad-hoc/ibss mode, or 
> > is that just a weird artifact?
> 
> Sounds like a werid artifact - I only (intentionally) connect to access
> points.

Ok thanks, nevermind, that is just ath5k_extend_tsf being inlined.

-- 
Bob Copeland %% www.bobcopeland.com


^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-03-06  9:42                                     ` Sitsofe Wheeler
  2009-03-07  4:47                                       ` Bob Copeland
@ 2009-03-08  3:09                                       ` Bob Copeland
  2009-03-08  9:28                                         ` Jiri Slaby
  1 sibling, 1 reply; 66+ messages in thread
From: Bob Copeland @ 2009-03-08  3:09 UTC (permalink / raw)
  To: Sitsofe Wheeler
  Cc: Jiri Slaby, Nick Kossifidis, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Fri, Mar 06, 2009 at 09:42:49AM +0000, Sitsofe Wheeler wrote:
> > parallel with iwlist wlan0 scan (as root, so scans are actually 
> > performed), in parallel with iperf or ping.  I didn't personally have
> > luck with that workload, though.

So I looked through this log for a few hours today.  Sorry to say
that I don't have any answers, but here's a summary of what I saw:

- it didn't seem like there were any obvious race conditions at play;
  that is, I didn't see other ath5k_XXX functions being pre-empted
  by ath5k_intr, followed by the softirq.

- there were a few errors prior to catching the poison.  I don't think
  the trace contains enough info to say whether they were phy errors,
  unsupported jumbo type errors, or whatever.  Anyway there didn't seem
  to be any obvious causal pattern, nothing like an error on the
  40th previous buffer or a cascading series of errors.  Of course, 
  the error could have happened much earlier compared to when the skbuff
  in the freelist got reused.

At this point, I guess the best way forward is to have a special debug
patch for when we pass an skb up the stack, when it gets allocated, and
what is in the descriptors.

Jiri, I really think we should implement that better check for the
self linked descriptor using the rxdp register.  bf_last is no longer a
valid marker for the self-linked descriptor at the end of the loop since
we re-add the just-processed descriptor every time through the loop  
(or am I missing something?)...  If you want I'll cook up a patch for 
that too.

-- 
Bob Copeland %% www.bobcopeland.com


^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-03-08  3:09                                       ` Bob Copeland
@ 2009-03-08  9:28                                         ` Jiri Slaby
  2009-03-08 16:10                                           ` Bob Copeland
  2009-03-10  0:43                                           ` Bob Copeland
  0 siblings, 2 replies; 66+ messages in thread
From: Jiri Slaby @ 2009-03-08  9:28 UTC (permalink / raw)
  To: Bob Copeland
  Cc: Sitsofe Wheeler, Nick Kossifidis, Frederic Weisbecker,
	linux-kernel, linux-wireless, ath5k-devel, Luis R. Rodriguez

On 8.3.2009 04:09, Bob Copeland wrote:
> At this point, I guess the best way forward is to have a special debug
> patch for when we pass an skb up the stack, when it gets allocated, and
> what is in the descriptors.

Yes, I have been thinking about some (ring buffer) array which would 
store address-desc_status pairs (even few megs in a vmalloc area) and 
pointer (not modulo-ed counter) to this array (index would be modulo-ed, 
indeed). From poison output we know the address, so we can then instruct 
ath5k to dump the buffer and see what happens :), what was in the status 
when we freed the skb.

Maybe some additional info may be needed, as you suggest.

> Jiri, I really think we should implement that better check for the
> self linked descriptor using the rxdp register.

As I stated a while ago, definitely!

> bf_last is no longer a
> valid marker for the self-linked descriptor at the end of the loop since
> we re-add the just-processed descriptor every time through the loop
> (or am I missing something?)...

Why? bf_last is snapshotted before the loop. And when we see this bf 
while processing, we stop. In the next round we check if bf->next is 
done. If yes, we move on.

> If you want I'll cook up a patch for that too.

If you like, feel free to kick it off. Remember to remove bf->flags 
completely, so that we save another bunch of memory ;).

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-03-08  9:28                                         ` Jiri Slaby
@ 2009-03-08 16:10                                           ` Bob Copeland
  2009-03-10  0:43                                           ` Bob Copeland
  1 sibling, 0 replies; 66+ messages in thread
From: Bob Copeland @ 2009-03-08 16:10 UTC (permalink / raw)
  To: Jiri Slaby
  Cc: Sitsofe Wheeler, Nick Kossifidis, Frederic Weisbecker,
	linux-kernel, linux-wireless, ath5k-devel, Luis R. Rodriguez

On Sun, Mar 08, 2009 at 10:28:23AM +0100, Jiri Slaby wrote:
>> bf_last is no longer a
>> valid marker for the self-linked descriptor at the end of the loop since
>> we re-add the just-processed descriptor every time through the loop
>> (or am I missing something?)...
>
> Why? bf_last is snapshotted before the loop. And when we see this bf  
> while processing, we stop. In the next round we check if bf->next is  
> done. If yes, we move on.

I think it works for the first one but doesn't take into account 
subsequent self-linked descriptors.  E.g. if we start with buffers:

A->B->C

bf_last is 'C'.  The hardware sees descriptors:

A'->B'->C'(->C')

After one round, the hardware sees:

B'->C'->A'(->A')

Suppose the hardware does A',B',C' before we process any buffer.  So after
we process A, the hardware moves on to A'.  It finishes a packet, re-reads
the link and starts overwriting A' again, but for some reason is really
slow to complete this second packet.  

Now, the tasklet burns through B and C.  On C we do the check if bf->next 
(i.e. A) is done, and it is because the hardware wrote one packet to it[1].
However, it's still in the process of writing another frame over A' again.  
We skip C, send A to __ieee80211_rx, the skb is freed, but the hardware 
is still writing stuff to it.

In the trace Sitsofe posted, I didn't see any tasklets processing more
than a couple of packets, though.

[1] Note, the status is cleared when we hand the buffer to hardware, but
not by the hardware itself when it rewrites the same buffer.  That could
explain why status is "martian" for overwritten frames.

>> If you want I'll cook up a patch for that too.
>
> If you like, feel free to kick it off. Remember to remove bf->flags  
> completely, so that we save another bunch of memory ;).

Ok, I probably won't get to it until this evening so if you prefer to
do it, go ahead - otherwise I'll tackle it then.

-- 
Bob Copeland %% www.bobcopeland.com


^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-03-08  9:28                                         ` Jiri Slaby
  2009-03-08 16:10                                           ` Bob Copeland
@ 2009-03-10  0:43                                           ` Bob Copeland
  2009-03-10  8:19                                             ` Sitsofe Wheeler
  2009-03-12  6:10                                             ` Sitsofe Wheeler
  1 sibling, 2 replies; 66+ messages in thread
From: Bob Copeland @ 2009-03-10  0:43 UTC (permalink / raw)
  To: Jiri Slaby
  Cc: Sitsofe Wheeler, Nick Kossifidis, Frederic Weisbecker,
	linux-kernel, linux-wireless, ath5k-devel, Luis R. Rodriguez

On Sun, Mar 08, 2009 at 10:28:23AM +0100, Jiri Slaby wrote:
>> If you want I'll cook up a patch for that too.
>
> If you like, feel free to kick it off. Remember to remove bf->flags  
> completely, so that we save another bunch of memory ;).

Ok, here's a patch, it survived a few hours of testing with 3 rx buffers.
Sitsofe, it's worth a try applying this one, even though it probably
isn't it :)

From: Bob Copeland <me@bobcopeland.com>
Date: Mon, 9 Mar 2009 11:29:34 -0400
Subject: [PATCH] ath5k: use rx hw descriptor pointer for self-linked check

This patch simplifies the code used to detect when the
self-linked DMA buffer is still in use by hardware, by
checking the hardware's rxdp register instead of looking
at the software buffer list.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
---
 drivers/net/wireless/ath5k/base.c |   24 ++++--------------------
 drivers/net/wireless/ath5k/base.h |    1 -
 drivers/net/wireless/ath5k/dma.c  |    2 --
 3 files changed, 4 insertions(+), 23 deletions(-)

diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c
index 1d77ee9..a4e385b 100644
--- a/drivers/net/wireless/ath5k/base.c
+++ b/drivers/net/wireless/ath5k/base.c
@@ -1677,7 +1677,7 @@ ath5k_tasklet_rx(unsigned long data)
 	struct sk_buff *skb, *next_skb;
 	dma_addr_t next_skb_addr;
 	struct ath5k_softc *sc = (void *)data;
-	struct ath5k_buf *bf, *bf_last;
+	struct ath5k_buf *bf;
 	struct ath5k_desc *ds;
 	int ret;
 	int hdrlen;
@@ -1688,7 +1688,6 @@ ath5k_tasklet_rx(unsigned long data)
 		ATH5K_WARN(sc, "empty rx buf pool\n");
 		goto unlock;
 	}
-	bf_last = list_entry(sc->rxbuf.prev, struct ath5k_buf, list);
 	do {
 		rxs.flag = 0;
 
@@ -1697,24 +1696,9 @@ ath5k_tasklet_rx(unsigned long data)
 		skb = bf->skb;
 		ds = bf->desc;
 
-		/*
-		 * last buffer must not be freed to ensure proper hardware
-		 * function. When the hardware finishes also a packet next to
-		 * it, we are sure, it doesn't use it anymore and we can go on.
-		 */
-		if (bf_last == bf)
-			bf->flags |= 1;
-		if (bf->flags) {
-			struct ath5k_buf *bf_next = list_entry(bf->list.next,
-					struct ath5k_buf, list);
-			ret = sc->ah->ah_proc_rx_desc(sc->ah, bf_next->desc,
-					&rs);
-			if (ret)
-				break;
-			bf->flags &= ~1;
-			/* skip the overwritten one (even status is martian) */
-			goto next;
-		}
+		/* bail if HW is still using self-linked descriptor */
+		if (ath5k_hw_get_rxdp(sc->ah) == bf->daddr)
+			break;
 
 		ret = sc->ah->ah_proc_rx_desc(sc->ah, ds, &rs);
 		if (unlikely(ret == -EINPROGRESS))
diff --git a/drivers/net/wireless/ath5k/base.h b/drivers/net/wireless/ath5k/base.h
index facc60d..ed407cc 100644
--- a/drivers/net/wireless/ath5k/base.h
+++ b/drivers/net/wireless/ath5k/base.h
@@ -56,7 +56,6 @@
 
 struct ath5k_buf {
 	struct list_head	list;
-	unsigned int		flags;	/* rx descriptor flags */
 	struct ath5k_desc	*desc;	/* virtual addr of desc */
 	dma_addr_t		daddr;	/* physical addr of desc */
 	struct sk_buff		*skb;	/* skbuff for buf */
diff --git a/drivers/net/wireless/ath5k/dma.c b/drivers/net/wireless/ath5k/dma.c
index b65b4fe..941b511 100644
--- a/drivers/net/wireless/ath5k/dma.c
+++ b/drivers/net/wireless/ath5k/dma.c
@@ -80,8 +80,6 @@ int ath5k_hw_stop_rx_dma(struct ath5k_hw *ah)
  * ath5k_hw_get_rxdp - Get RX Descriptor's address
  *
  * @ah: The &struct ath5k_hw
- *
- * XXX: Is RXDP read and clear ?
  */
 u32 ath5k_hw_get_rxdp(struct ath5k_hw *ah)
 {
-- 
1.6.0.6


-- 
Bob Copeland %% www.bobcopeland.com


^ permalink raw reply related	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-03-10  0:43                                           ` Bob Copeland
@ 2009-03-10  8:19                                             ` Sitsofe Wheeler
  2009-03-12  6:10                                             ` Sitsofe Wheeler
  1 sibling, 0 replies; 66+ messages in thread
From: Sitsofe Wheeler @ 2009-03-10  8:19 UTC (permalink / raw)
  To: Bob Copeland
  Cc: Jiri Slaby, Nick Kossifidis, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Mon, Mar 09, 2009 at 08:43:44PM -0400, Bob Copeland wrote:
> Ok, here's a patch, it survived a few hours of testing with 3 rx buffers.
> Sitsofe, it's worth a try applying this one, even though it probably
> isn't it :)

Understood. It could be a few days before I can back to you as to
whether it had an effect though.

-- 
Sitsofe | http://sucs.org/~sits/

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-03-10  0:43                                           ` Bob Copeland
  2009-03-10  8:19                                             ` Sitsofe Wheeler
@ 2009-03-12  6:10                                             ` Sitsofe Wheeler
  2009-03-13  9:52                                               ` Sitsofe Wheeler
  1 sibling, 1 reply; 66+ messages in thread
From: Sitsofe Wheeler @ 2009-03-12  6:10 UTC (permalink / raw)
  To: Bob Copeland
  Cc: Jiri Slaby, Nick Kossifidis, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Mon, Mar 09, 2009 at 08:43:44PM -0400, Bob Copeland wrote:
> 
> Ok, here's a patch, it survived a few hours of testing with 3 rx buffers.
> Sitsofe, it's worth a try applying this one, even though it probably
> isn't it :)

I applied it yesterday and all seemed well for a few hours (suspending
and resuming a fair bit too) so I left it overnight but when I looked
this morning this is what I found:

[24438.927600] ath5k phy0: unsupported jumbo
[27478.224940] ath5k phy0: unsupported jumbo
[29510.551614] ath5k phy0: unsupported jumbo
[29733.774249] ath5k phy0: unsupported jumbo
[30094.270082] ath5k phy0: unsupported jumbo
[30865.730585] ath5k phy0: unsupported jumbo
[34971.026519] ath5k phy0: unsupported jumbo
[35324.590673] ath5k phy0: unsupported jumbo
[41907.927944] =============================================================================
[41907.927956] BUG kmalloc-4096: Poison overwritten
[41907.927961] -----------------------------------------------------------------------------
[41907.927964] 
[41907.927969] INFO: 0xeacd9040-0xeacd9083. First byte 0x80 instead of 0x6b
[41907.927984] INFO: Allocated in dev_alloc_skb+0x21/0x40 age=4198 cpu=0 pid=0
[41907.927993] INFO: Freed in skb_release_data+0x5e/0x90 age=102 cpu=0 pid=508
[41907.928000] INFO: Slab 0xc1559b00 objects=7 used=3 fp=0xeacd9030 flags=0x400020c3
[41907.928006] INFO: Object 0xeacd9030 @offset=4144 fp=0xeacdb090
[41907.928008] 
[41907.928012] Bytes b4 0xeacd9020:  fc 01 00 00 f8 de 7a 02 5a 5a 5a 5a 5a 5a 5a 5a ü...øÞz.ZZZZZZZZ
[41907.928042]   Object 0xeacd9030:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[41907.928070]   Object 0xeacd9040:  80 00 00 00 ff ff ff ff ff ff 00 30 ab 1a 32 3f ....ÿÿÿÿÿÿ.0«.2?
[41907.928099]   Object 0xeacd9050:  00 30 ab 1a 32 3f 60 c7 4c 42 03 4d 06 00 00 00 .0«.2?`ÇLB.M....
[41907.928127]   Object 0xeacd9060:  64 00 31 00 00 08 57 69 72 65 6c 65 73 73 01 04 d.1...Wireless..
[41907.928155]   Object 0xeacd9070:  82 84 8b 96 03 01 06 05 04 01 02 00 00 99 fc 3d ..............ü=
[41907.928183]   Object 0xeacd9080:  47 99 fc 47 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b G.üGkkkkkkkkkkkk
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[41907.928896]   Object 0xeacd9f90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[41907.928896]   Object 0xeacd9fa0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[41907.928896]   Object 0xeacd9fb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[41907.928896]   Object 0xeacd9fc0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[41907.928896]   Object 0xeacd9fd0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[41907.928896]   Object 0xeacd9fe0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[41907.928896]   Object 0xeacd9ff0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[41907.928896]   Object 0xeacda000:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[41907.928896]   Object 0xeacda010:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[41907.928896]   Object 0xeacda020:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 kkkkkkkkkkkkkkk¥
[41907.928896]  Redzone 0xeacda030:  bb bb bb bb                                     »»»»            
[41907.928896]  Padding 0xeacda058:  5a 5a 5a 5a 5a 5a 5a 5a                         ZZZZZZZZ        
[41907.928896] Pid: 0, comm: swapper Tainted: G        W  2.6.29-rc7-dirty #119
[41907.928896] Call Trace:
[41907.928896]  [<c0181654>] print_trailer+0xb4/0xf0
[41907.928896]  [<c0181737>] check_bytes_and_report+0xa7/0xd0
[41907.928896]  [<c01824ce>] check_object+0x1ae/0x1f0
[41907.928896]  [<c01832ff>] __slab_alloc+0x46f/0x510
[41907.928896]  [<c01842e7>] __kmalloc_track_caller+0x127/0x130
[41907.928896]  [<c0387491>] ? dev_alloc_skb+0x21/0x40
[41907.928896]  [<c0387491>] ? dev_alloc_skb+0x21/0x40
[41907.928896]  [<c0386e0e>] __alloc_skb+0x4e/0x100
[41907.928896]  [<c0387491>] dev_alloc_skb+0x21/0x40
[41907.928896]  [<c02e47c8>] ath5k_rx_skb_alloc+0x28/0x180
[41907.928896]  [<c04077fe>] ? _spin_lock+0x3e/0x50
[41907.928896]  [<c02e6082>] ath5k_tasklet_rx+0x1e2/0x6a0
[41907.928896]  [<c0148a0b>] ? trace_hardirqs_off+0xb/0x10
[41907.928896]  [<c0407ccc>] ? _spin_unlock_irqrestore+0x3c/0x60
[41907.928896]  [<c0144000>] ? clocksource_get_next+0x40/0x50
[41907.928896]  [<c02dce8b>] ? ath5k_hw_get_isr+0x6b/0x3d0
[41907.928896]  [<c0116a62>] ? read_hpet+0x12/0x20
[41907.928896]  [<c02dd217>] ? ath5k_hw_is_intr_pending+0x27/0x60
[41907.928896]  [<c012d4d4>] tasklet_action+0x44/0x90
[41907.928896]  [<c012d035>] __do_softirq+0x65/0x110
[41907.928896]  [<c012d135>] do_softirq+0x55/0x60
[41907.928896]  [<c012d41c>] irq_exit+0x6c/0x80
[41907.928896]  [<c01051d7>] do_IRQ+0x57/0xb0
[41907.928896]  [<c010396c>] common_interrupt+0x2c/0x34
[41907.928896]  [<c0279444>] ? acpi_idle_enter_bm+0x1ec/0x21d
[41907.928896]  [<c0354a0c>] cpuidle_idle_call+0x6c/0xc0
[41907.928896]  [<c0101ebb>] cpu_idle+0x4b/0x70
[41907.928896]  [<c03fc215>] rest_init+0x55/0x60
[41907.928896] FIX kmalloc-4096: Restoring 0xeacd9040-0xeacd9083=0x6b
[41907.928896] 
[41907.928896] FIX kmalloc-4096: Marking all objects used
[42365.768380] =============================================================================
[42365.768392] BUG kmalloc-4096: Poison overwritten
[42365.768396] -----------------------------------------------------------------------------
[42365.768399] 
[42365.768405] INFO: 0xecca8010-0xecca8053. First byte 0x80 instead of 0x6b
[42365.768420] INFO: Allocated in dev_alloc_skb+0x21/0x40 age=4711 cpu=0 pid=0
[42365.768429] INFO: Freed in skb_release_data+0x5e/0x90 age=614 cpu=0 pid=508
[42365.768436] INFO: Slab 0xc1599500 objects=7 used=3 fp=0xecca8000 flags=0x400020c3
[42365.768442] INFO: Object 0xecca8000 @offset=0 fp=0xeccad0f0
[42365.768444] 
[42365.768448]   Object 0xecca8000:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.768477]   Object 0xecca8010:  80 00 00 00 ff ff ff ff ff ff 00 30 ab 1a 32 3f ....ÿÿÿÿÿÿ.0«.2?
[42365.768506]   Object 0xecca8020:  00 30 ab 1a 32 3f 30 ec 4c 62 45 68 06 00 00 00 .0«.2?0ìLbEh....
[42365.768534]   Object 0xecca8030:  64 00 31 00 00 08 57 69 72 65 6c 65 73 73 01 04 d.1...Wireless..
[42365.768562]   Object 0xecca8040:  82 84 8b 96 03 01 06 05 04 00 02 00 00 97 1b 2b ...............+
[42365.768590]   Object 0xecca8050:  84 97 1b 84 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b ....kkkkkkkkkkkk
[42365.768618]   Object 0xecca8060:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.768646]   Object 0xecca8070:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.768675]   Object 0xecca8080:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.768703]   Object 0xecca8090:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.768731]   Object 0xecca80a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.768759]   Object 0xecca80b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.768787]   Object 0xecca80c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.768815]   Object 0xecca80d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.768843]   Object 0xecca80e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.768871]   Object 0xecca80f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.768899]   Object 0xecca8100:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.768928]   Object 0xecca8110:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.768956]   Object 0xecca8120:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.768984]   Object 0xecca8130:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769012]   Object 0xecca8140:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769040]   Object 0xecca8150:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769068]   Object 0xecca8160:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769096]   Object 0xecca8170:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769124]   Object 0xecca8180:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769152]   Object 0xecca8190:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769181]   Object 0xecca81a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769209]   Object 0xecca81b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769237]   Object 0xecca81c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769265]   Object 0xecca81d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769293]   Object 0xecca81e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769321]   Object 0xecca81f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8200:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8210:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8220:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8230:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8240:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8250:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8260:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8270:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8280:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8290:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca82a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca82b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca82c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca82d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca82e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca82f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8300:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8310:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8320:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8330:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8340:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8350:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8360:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8370:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8380:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8390:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca83a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca83b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca83c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca83d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca83e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca83f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8400:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8410:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8420:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8430:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8440:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8450:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8460:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8470:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8480:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8490:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca84a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca84b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca84c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca84d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca84e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca84f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8500:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8510:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8520:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8530:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8540:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8550:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8560:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8570:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8580:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8590:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca85a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca85b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca85c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca85d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca85e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca85f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8600:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8610:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8620:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8630:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8640:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8650:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
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[42365.769324]   Object 0xecca8e90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8ea0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8eb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8ec0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8ed0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8ee0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8ef0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8f00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8f10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8f20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8f30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8f40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8f50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8f60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8f70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8f80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8f90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8fa0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8fb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8fc0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8fd0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8fe0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[42365.769324]   Object 0xecca8ff0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 kkkkkkkkkkkkkkk¥
[42365.769324]  Redzone 0xecca9000:  bb bb bb bb                                     »»»»            
[42365.769324]  Padding 0xecca9028:  5a 5a 5a 5a 5a 5a 5a 5a                         ZZZZZZZZ        
[42365.769324] Pid: 0, comm: swapper Tainted: G        W  2.6.29-rc7-dirty #119
[42365.769324] Call Trace:
[42365.769324]  [<c0181654>] print_trailer+0xb4/0xf0
[42365.769324]  [<c0181737>] check_bytes_and_report+0xa7/0xd0
[42365.769324]  [<c01824ce>] check_object+0x1ae/0x1f0
[42365.769324]  [<c01832ff>] __slab_alloc+0x46f/0x510
[42365.769324]  [<c01842e7>] __kmalloc_track_caller+0x127/0x130
[42365.769324]  [<c0387491>] ? dev_alloc_skb+0x21/0x40
[42365.769324]  [<c0387491>] ? dev_alloc_skb+0x21/0x40
[42365.769324]  [<c0386e0e>] __alloc_skb+0x4e/0x100
[42365.769324]  [<c0387491>] dev_alloc_skb+0x21/0x40
[42365.769324]  [<c02e47c8>] ath5k_rx_skb_alloc+0x28/0x180
[42365.769324]  [<c04077fe>] ? _spin_lock+0x3e/0x50
[42365.769324]  [<c02e6082>] ath5k_tasklet_rx+0x1e2/0x6a0
[42365.769324]  [<c0148a0b>] ? trace_hardirqs_off+0xb/0x10
[42365.769324]  [<c0407ccc>] ? _spin_unlock_irqrestore+0x3c/0x60
[42365.769324]  [<c0144000>] ? clocksource_get_next+0x40/0x50
[42365.769324]  [<c02dce8b>] ? ath5k_hw_get_isr+0x6b/0x3d0
[42365.769324]  [<c0116a62>] ? read_hpet+0x12/0x20
[42365.769324]  [<c02dd217>] ? ath5k_hw_is_intr_pending+0x27/0x60
[42365.769324]  [<c012d4d4>] tasklet_action+0x44/0x90
[42365.769324]  [<c012d035>] __do_softirq+0x65/0x110
[42365.769324]  [<c012d135>] do_softirq+0x55/0x60
[42365.769324]  [<c012d41c>] irq_exit+0x6c/0x80
[42365.769324]  [<c01051d7>] do_IRQ+0x57/0xb0
[42365.769324]  [<c010396c>] common_interrupt+0x2c/0x34
[42365.769324]  [<c0279444>] ? acpi_idle_enter_bm+0x1ec/0x21d
[42365.769324]  [<c0354a0c>] cpuidle_idle_call+0x6c/0xc0
[42365.769324]  [<c0101ebb>] cpu_idle+0x4b/0x70
[42365.769324]  [<c03fc215>] rest_init+0x55/0x60
[42365.769324] FIX kmalloc-4096: Restoring 0xecca8010-0xecca8053=0x6b
[42365.769324] 
[42365.769324] FIX kmalloc-4096: Marking all objects used
[48070.015841] ath5k phy0: unsupported jumbo
[48214.117742] ath5k phy0: unsupported jumbo

The following are also in dmesg but long before a bunch of
suspend/resumes were done:

[ 3454.987987] ath5k phy0: unsupported jumbo
[ 3563.569499] ath5k phy0: noise floor calibration timeout (2447MHz)
[ 9251.877173] ath5k phy0: unsupported jumbo

Alas, while I did have ftrace going I accidentally killed off my script
that would stop it on a BUG before I went to bed so I don't have
anything else to report...

Just a quick heads up - I will probably lose the ability to "easily"
test this problem by the end of this month...

-- 
Sitsofe | http://sucs.org/~sits/

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-03-12  6:10                                             ` Sitsofe Wheeler
@ 2009-03-13  9:52                                               ` Sitsofe Wheeler
  2009-03-13 12:28                                                 ` Bob Copeland
  2009-03-20 13:14                                                 ` Bob Copeland
  0 siblings, 2 replies; 66+ messages in thread
From: Sitsofe Wheeler @ 2009-03-13  9:52 UTC (permalink / raw)
  To: Bob Copeland
  Cc: Jiri Slaby, Nick Kossifidis, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Thu, Mar 12, 2009 at 06:10:48AM +0000, Sitsofe Wheeler wrote:
> On Mon, Mar 09, 2009 at 08:43:44PM -0400, Bob Copeland wrote:
> > 
> > Ok, here's a patch, it survived a few hours of testing with 3 rx buffers.
> > Sitsofe, it's worth a try applying this one, even though it probably
> > isn't it :)
> 
> I applied it yesterday and all seemed well for a few hours (suspending
> and resuming a fair bit too) so I left it overnight but when I looked
> this morning this is what I found:
> 
> Just a quick heads up - I will probably lose the ability to "easily"
> test this problem by the end of this month...

OK I left things overnight and this happened again with the again with
the patch installed. This time I had an ftrace filter in place and I
think the function trace goes back around 27 minutes. The dmesg doesn't
report any jumbo frame errors but it does mention ath5k phy0: noise
floor calibration timeout about two hours before the poison is
overwritten.

The dmesg and trace can be found on
http://sucs.org/~sits/test/eeepc-debug/20090313/ .

The one I'll note is that every time this issue has occurred I've been
connected to encrypted networks (both WPA and WEP).

-- 
Sitsofe | http://sucs.org/~sits/

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-03-13  9:52                                               ` Sitsofe Wheeler
@ 2009-03-13 12:28                                                 ` Bob Copeland
  2009-03-20 13:14                                                 ` Bob Copeland
  1 sibling, 0 replies; 66+ messages in thread
From: Bob Copeland @ 2009-03-13 12:28 UTC (permalink / raw)
  To: Sitsofe Wheeler
  Cc: Jiri Slaby, Nick Kossifidis, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Fri, Mar 13, 2009 at 09:52:13AM +0000, Sitsofe Wheeler wrote:
> The dmesg and trace can be found on
> http://sucs.org/~sits/test/eeepc-debug/20090313/ .
> 
> The one I'll note is that every time this issue has occurred I've been
> connected to encrypted networks (both WPA and WEP).

Awesome, thanks for the great debugging help!

-- 
Bob Copeland %% www.bobcopeland.com


^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-03-13  9:52                                               ` Sitsofe Wheeler
  2009-03-13 12:28                                                 ` Bob Copeland
@ 2009-03-20 13:14                                                 ` Bob Copeland
  2009-03-29 14:24                                                   ` Sitsofe Wheeler
  1 sibling, 1 reply; 66+ messages in thread
From: Bob Copeland @ 2009-03-20 13:14 UTC (permalink / raw)
  To: Sitsofe Wheeler
  Cc: Jiri Slaby, Nick Kossifidis, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Fri, Mar 13, 2009 at 09:52:13AM +0000, Sitsofe Wheeler wrote:
> The dmesg and trace can be found on
> http://sucs.org/~sits/test/eeepc-debug/20090313/ .

Looks like the skb was reused right after it was freed by the mac80211
workqueue so that seems inline with the idea that the list is getting
corrupted somehow.  On top of the last patch, would you mind running 
this overnight?  It'll dump a lot of debug info, I'm really only 
interested in the last 5 invocations of ath5k_debug_printrxbuffs or so
before the poison.  During a scan you'll see lots of rx_start/rx_stop.

Hmm, I can think of another scenario that could break: if the hw updated
rxdp before DMA completes, then we should check next packet's status too
in case 'current' packet's status is clobbered.

Someone suggested dumping the self links and deal with RXEOL, maybe a 
good idea :)

diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c
index a4e385b..e21705c 100644
--- a/drivers/net/wireless/ath5k/base.c
+++ b/drivers/net/wireless/ath5k/base.c
@@ -1143,8 +1143,10 @@ ath5k_rxbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf)
 
 	if (!skb) {
 		skb = ath5k_rx_skb_alloc(sc, &bf->skbaddr);
-		if (!skb)
+		if (!skb) {
+			printk(KERN_DEBUG "ath5k: error exit from rxbuf_setup\n");
 			return -ENOMEM;
+		}
 		bf->skb = skb;
 	}
 
@@ -1561,6 +1563,8 @@ ath5k_rx_start(struct ath5k_softc *sc)
 	ath5k_mode_setup(sc);		/* set filters, etc. */
 	ath5k_hw_start_rx_pcu(ah);	/* re-enable PCU/DMA engine */
 
+        printk(KERN_DEBUG "ath5k: rx_start\n");
+
 	return 0;
 err:
 	return ret;
@@ -1578,8 +1582,7 @@ ath5k_rx_stop(struct ath5k_softc *sc)
 	ath5k_hw_set_rx_filter(ah, 0);	/* clear recv filter */
 	ath5k_hw_stop_rx_dma(ah);	/* disable DMA engine */
 
-	ath5k_debug_printrxbuffs(sc, ah);
-
+        printk(KERN_DEBUG "ath5k: rx_stop\n");
 	sc->rxlink = NULL;		/* just in case */
 }
 
@@ -1682,6 +1685,7 @@ ath5k_tasklet_rx(unsigned long data)
 	int ret;
 	int hdrlen;
 	int padsize;
+	static int foo=0;
 
 	spin_lock(&sc->rxbuflock);
 	if (list_empty(&sc->rxbuf)) {
@@ -1689,6 +1693,10 @@ ath5k_tasklet_rx(unsigned long data)
 		goto unlock;
 	}
 	do {
+		/* dump list state every 8 pkts */
+		if (!(foo++ & 7))
+			ath5k_debug_printrxbuffs(sc, sc->ah);
+
 		rxs.flag = 0;
 
 		bf = list_first_entry(&sc->rxbuf, struct ath5k_buf, list);
@@ -2308,6 +2316,8 @@ ath5k_stop_locked(struct ath5k_softc *sc)
 	} else
 		sc->rxlink = NULL;
 
+        printk(KERN_DEBUG "ath5k: rx_stop_locked\n");
+
 	return 0;
 }
 
@@ -2430,6 +2440,8 @@ ath5k_intr(int irq, void *dev_id)
 				*     least on older hardware revs.
 				*/
 				sc->rxlink = NULL;
+                                printk(KERN_DEBUG "ath5k: RXEOL\n");
+
 			}
 			if (status & AR5K_INT_TXURN) {
 				/* bump tx trigger level */
diff --git a/drivers/net/wireless/ath5k/debug.c b/drivers/net/wireless/ath5k/debug.c
index ccaeb5c..c544da5 100644
--- a/drivers/net/wireless/ath5k/debug.c
+++ b/drivers/net/wireless/ath5k/debug.c
@@ -505,7 +505,8 @@ ath5k_debug_printrxbuf(struct ath5k_buf *bf, int done,
 	struct ath5k_desc *ds = bf->desc;
 	struct ath5k_hw_all_rx_desc *rd = &ds->ud.ds_rx;
 
-	printk(KERN_DEBUG "R (%p %llx) %08x %08x %08x %08x %08x %08x %c\n",
+	printk(KERN_DEBUG "R %p (%p %llx) %08x %08x %08x %08x %08x %08x %c\n",
+                bf, 
 		ds, (unsigned long long)bf->daddr,
 		ds->ds_link, ds->ds_data,
 		rd->rx_ctl.rx_control_0, rd->rx_ctl.rx_control_1,
@@ -518,23 +519,18 @@ ath5k_debug_printrxbuffs(struct ath5k_softc *sc, struct ath5k_hw *ah)
 {
 	struct ath5k_desc *ds;
 	struct ath5k_buf *bf;
-	struct ath5k_rx_status rs = {};
+	struct ath5k_rx_status rs;
 	int status;
 
-	if (likely(!(sc->debug.level & ATH5K_DEBUG_RESET)))
-		return;
-
 	printk(KERN_DEBUG "rx queue %x, link %p\n",
 		ath5k_hw_get_rxdp(ah), sc->rxlink);
 
-	spin_lock_bh(&sc->rxbuflock);
 	list_for_each_entry(bf, &sc->rxbuf, list) {
 		ds = bf->desc;
+                memset(&rs, 0, sizeof(struct ath5k_rx_status));
 		status = ah->ah_proc_rx_desc(ah, ds, &rs);
-		if (!status)
-			ath5k_debug_printrxbuf(bf, status == 0, &rs);
+		ath5k_debug_printrxbuf(bf, status == 0, &rs);
 	}
-	spin_unlock_bh(&sc->rxbuflock);
 }
 
 void

-- 
Bob Copeland %% www.bobcopeland.com


^ permalink raw reply related	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-03-20 13:14                                                 ` Bob Copeland
@ 2009-03-29 14:24                                                   ` Sitsofe Wheeler
  2009-03-29 15:14                                                     ` Bob Copeland
  0 siblings, 1 reply; 66+ messages in thread
From: Sitsofe Wheeler @ 2009-03-29 14:24 UTC (permalink / raw)
  To: Bob Copeland
  Cc: Jiri Slaby, Nick Kossifidis, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Fri, Mar 20, 2009 at 09:14:37AM -0400, Bob Copeland wrote:
> 
> Looks like the skb was reused right after it was freed by the mac80211
> workqueue so that seems inline with the idea that the list is getting
> corrupted somehow.  On top of the last patch, would you mind running 
> this overnight?  It'll dump a lot of debug info, I'm really only 
> interested in the last 5 invocations of ath5k_debug_printrxbuffs or so
> before the poison.  During a scan you'll see lots of rx_start/rx_stop.

I've been away travelling for the past week and I move house on the 1st
April (which will make testing this much harder from then on) but I'll
try to get one final test in before the move.

Do you need an ftrace in addition to dmesg for this? If so is it better
to leave ieee calls out of the ftrace?

-- 
Sitsofe | http://sucs.org/~sits/

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-03-29 14:24                                                   ` Sitsofe Wheeler
@ 2009-03-29 15:14                                                     ` Bob Copeland
  2009-03-31  8:30                                                       ` Sitsofe Wheeler
  0 siblings, 1 reply; 66+ messages in thread
From: Bob Copeland @ 2009-03-29 15:14 UTC (permalink / raw)
  To: Sitsofe Wheeler
  Cc: Jiri Slaby, Nick Kossifidis, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Sun, Mar 29, 2009 at 03:24:32PM +0100, Sitsofe Wheeler wrote:
> I've been away travelling for the past week and I move house on the 1st
> April (which will make testing this much harder from then on) but I'll
> try to get one final test in before the move.
> 
> Do you need an ftrace in addition to dmesg for this? If so is it better
> to leave ieee calls out of the ftrace?

No, thanks - the debug output will be plenty verbose already and should
tell everything we need to know.

-- 
Bob Copeland %% www.bobcopeland.com


^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-03-29 15:14                                                     ` Bob Copeland
@ 2009-03-31  8:30                                                       ` Sitsofe Wheeler
  2009-05-13 21:44                                                         ` Sitsofe Wheeler
  0 siblings, 1 reply; 66+ messages in thread
From: Sitsofe Wheeler @ 2009-03-31  8:30 UTC (permalink / raw)
  To: Bob Copeland
  Cc: Jiri Slaby, Nick Kossifidis, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Sun, Mar 29, 2009 at 11:14:01AM -0400, Bob Copeland wrote:
> 
> No, thanks - the debug output will be plenty verbose already and should
> tell everything we need to know.

Frustratingly despite leaving the machine on for two nights, the slab
poison message has not reappeared while debugging was on. Unfortunately
the debug messages rapidly fill up the SSD so I resorted to stopping
syslogd, upping the size of the kernel message buffer and using scripts
like the following:

touch /tmp/kmsg
watch -n1 'if ! `grep -i poison /tmp/kmsg`; then mv /tmp/kmsg /tmp/kmsg.1; dmesg > /tmp/kmsg; fi'
watch -n2 'if `grep -qi "ath5k phy" /tmp/kmsg`; then grep -B20 -i "ath5k phy" /tmp/kmsg* >> /tmp/ath5k.txt; fi'

There was only one unsupported jumbo message recorded (apparently). As
it happens syslog decided to start itself this morning so I will post
the debug output in the lead up to the latest unsupported jumbo message:

[43598.870727] rx queue 31dd41a0, link f1dd4160
[43598.870739] R f1dd6120 (f1dd4180 31dd4180) 31dd41a0 1e086140 00000000 00000a60 134d8041 134d8041 *
[43598.870747] R f1dd6138 (f1dd41a0 31dd41a0) 31dd41c0 1e080040 00000000 00000a40 00000000 00000000  
[43598.870754] R f1dd6150 (f1dd41c0 31dd41c0) 31dd41e0 1e0830c0 00000000 00000a50 00000000 00000000  
[43598.870762] R f1dd6168 (f1dd41e0 31dd41e0) 31dd4200 1e0c5100 00000000 00000a70 00000000 00000000  
[43598.870769] R f1dd6180 (f1dd4200 31dd4200) 31dd4220 1e0c2080 00000000 00000a60 00000000 00000000  
[43598.870777] R f1dd6198 (f1dd4220 31dd4220) 31dd4240 1e0c1040 00000000 00000a70 00000000 00000000  
[43598.870784] R f1dd61b0 (f1dd4240 31dd4240) 31dd4260 1e0c30c0 00000000 00000a50 00000000 00000000  
[43598.870792] R f1dd61c8 (f1dd4260 31dd4260) 31dd4280 1e0c0040 00000000 00000a40 00000000 00000000  
[43598.870799] R f1dd61e0 (f1dd4280 31dd4280) 31dd42a0 1e0c6140 00000000 00000a60 00000000 00000000  
[43598.870807] R f1dd61f8 (f1dd42a0 31dd42a0) 31dd42c0 1e0c4100 00000000 00000a40 00000000 00000000  
[43598.870815] R f1dd6210 (f1dd42c0 31dd42c0) 31dd42e0 1e0f30c0 00000000 00000a50 00000000 00000000  
[43598.870822] R f1dd6228 (f1dd42e0 31dd42e0) 31dd4300 1e0f4100 00000000 00000a40 00000000 00000000  
[43598.870830] R f1dd6240 (f1dd4300 31dd4300) 31dd4320 1e0f0040 00000000 00000a40 00000000 00000000  
[43598.870837] R f1dd6258 (f1dd4320 31dd4320) 31dd4340 1e0f2080 00000000 00000a60 00000000 00000000  
[43598.870845] R f1dd6270 (f1dd4340 31dd4340) 31dd4360 1e0f1040 00000000 00000a70 00000000 00000000  
[43598.870852] R f1dd6288 (f1dd4360 31dd4360) 31dd4380 1e0f6140 00000000 00000a60 00000000 00000000  
[43598.870860] R f1dd62a0 (f1dd4380 31dd4380) 31dd43a0 1e07d100 00000000 00000a70 00000000 00000000  
[43598.870868] R f1dd62b8 (f1dd43a0 31dd43a0) 31dd43c0 1e1bd100 00000000 00000a70 00000000 00000000  
[43598.870875] R f1dd62d0 (f1dd43c0 31dd43c0) 31dd43e0 1e1bb0c0 00000000 00000a50 00000000 00000000  
[43598.870883] R f1dd62e8 (f1dd43e0 31dd43e0) 31dd4400 1e1be140 00000000 00000a60 00000000 00000000  
[43598.870890] R f1dd6300 (f1dd4400 31dd4400) 31dd4420 1e1ba080 00000000 00000a60 00000000 00000000  
[43598.870898] R f1dd6318 (f1dd4420 31dd4420) 31dd4440 1e1bc100 00000000 00000a40 00000000 00000000  
[43598.870905] R f1dd6330 (f1dd4440 31dd4440) 31dd4460 1e1b8040 00000000 00000a40 00000000 00000000  
[43598.870913] R f1dd6348 (f1dd4460 31dd4460) 31dd4480 34c36140 00000000 00000a60 00000000 00000000  
[43598.870920] R f1dd6360 (f1dd4480 31dd4480) 31dd44a0 1e082080 00000000 00000a60 00000000 00000000  
[43598.870928] R f1dd6378 (f1dd44a0 31dd44a0) 31dd44c0 1e079040 00000000 00000a70 00000000 00000000  
[43598.870935] R f1dd6390 (f1dd44c0 31dd44c0) 31dd44e0 1e07e140 00000000 00000a60 00000000 00000000  
[43598.870943] R f1dd63a8 (f1dd44e0 31dd44e0) 31dd4000 1e078040 00000000 00000a40 00000000 00000000  
[43598.870951] R f1dd6000 (f1dd4000 31dd4000) 31dd4020 1e07b0c0 00000000 00000a50 00000000 00000000  
[43598.870958] R f1dd6018 (f1dd4020 31dd4020) 31dd4040 1e07c100 00000000 00000a40 00000000 00000000  
[43598.870966] R f1dd6030 (f1dd4040 31dd4040) 31dd4060 1e07a080 00000000 00000a60 00000000 00000000  
[43598.870973] R f1dd6048 (f1dd4060 31dd4060) 31dd4080 1e1b9040 00000000 00000a70 00000000 00000000  
[43598.870981] R f1dd6060 (f1dd4080 31dd4080) 31dd40a0 1e0f5100 00000000 00000a70 00000000 00000000  
[43598.870989] R f1dd6078 (f1dd40a0 31dd40a0) 31dd40c0 34c35100 00000000 00000a70 00000000 00000000  
[43598.870996] R f1dd6090 (f1dd40c0 31dd40c0) 31dd40e0 34c34100 00000000 00000a40 00000000 00000000  
[43598.871331] R f1dd60a8 (f1dd40e0 31dd40e0) 31dd4100 34c32080 00000000 00000a60 00000000 00000000  
[43598.871338] R f1dd60c0 (f1dd4100 31dd4100) 31dd4120 31e8b0c0 00000000 00000a50 00000000 00000000  
[43598.871346] R f1dd60d8 (f1dd4120 31dd4120) 31dd4140 31e8d100 00000000 00000a70 00000000 00000000  
[43598.871353] R f1dd60f0 (f1dd4140 31dd4140) 31dd4160 31e88040 00000000 00000a40 00000000 00000000  
[43598.871361] R f1dd6108 (f1dd4160 31dd4160) 31dd4160 31e8c100 00000000 00000a40 00000000 00000000  
[43599.280500] rx queue 31dd4220, link f1dd41e0
[43599.280511] R f1dd6180 (f1dd4200 31dd4200) 31dd4220 1e0c2080 00000000 00000a60 134d8041 134d8041 *
[43599.280519] R f1dd6198 (f1dd4220 31dd4220) 31dd4240 1e0c1040 00000000 00000a70 00000000 00000000  
[43599.280527] R f1dd61b0 (f1dd4240 31dd4240) 31dd4260 1e0c30c0 00000000 00000a50 00000000 00000000  
[43599.280534] R f1dd61c8 (f1dd4260 31dd4260) 31dd4280 1e0c0040 00000000 00000a40 00000000 00000000  
[43599.280542] R f1dd61e0 (f1dd4280 31dd4280) 31dd42a0 1e0c6140 00000000 00000a60 00000000 00000000  
[43599.280549] R f1dd61f8 (f1dd42a0 31dd42a0) 31dd42c0 1e0c4100 00000000 00000a40 00000000 00000000  
[43599.280557] R f1dd6210 (f1dd42c0 31dd42c0) 31dd42e0 1e0f30c0 00000000 00000a50 00000000 00000000  
[43599.280564] R f1dd6228 (f1dd42e0 31dd42e0) 31dd4300 1e0f4100 00000000 00000a40 00000000 00000000  
[43599.280572] R f1dd6240 (f1dd4300 31dd4300) 31dd4320 1e0f0040 00000000 00000a40 00000000 00000000  
[43599.280580] R f1dd6258 (f1dd4320 31dd4320) 31dd4340 1e0f2080 00000000 00000a60 00000000 00000000  
[43599.280587] R f1dd6270 (f1dd4340 31dd4340) 31dd4360 1e0f1040 00000000 00000a70 00000000 00000000  
[43599.280595] R f1dd6288 (f1dd4360 31dd4360) 31dd4380 1e0f6140 00000000 00000a60 00000000 00000000  
[43599.280602] R f1dd62a0 (f1dd4380 31dd4380) 31dd43a0 1e07d100 00000000 00000a70 00000000 00000000  
[43599.280610] R f1dd62b8 (f1dd43a0 31dd43a0) 31dd43c0 1e1bd100 00000000 00000a70 00000000 00000000  
[43599.280617] R f1dd62d0 (f1dd43c0 31dd43c0) 31dd43e0 1e1bb0c0 00000000 00000a50 00000000 00000000  
[43599.280625] R f1dd62e8 (f1dd43e0 31dd43e0) 31dd4400 1e1be140 00000000 00000a60 00000000 00000000  
[43599.280633] R f1dd6300 (f1dd4400 31dd4400) 31dd4420 1e1ba080 00000000 00000a60 00000000 00000000  
[43599.280640] R f1dd6318 (f1dd4420 31dd4420) 31dd4440 1e1bc100 00000000 00000a40 00000000 00000000  
[43599.280648] R f1dd6330 (f1dd4440 31dd4440) 31dd4460 1e1b8040 00000000 00000a40 00000000 00000000  
[43599.280655] R f1dd6348 (f1dd4460 31dd4460) 31dd4480 34c36140 00000000 00000a60 00000000 00000000  
[43599.280663] R f1dd6360 (f1dd4480 31dd4480) 31dd44a0 1e082080 00000000 00000a60 00000000 00000000  
[43599.280670] R f1dd6378 (f1dd44a0 31dd44a0) 31dd44c0 1e079040 00000000 00000a70 00000000 00000000  
[43599.280678] R f1dd6390 (f1dd44c0 31dd44c0) 31dd44e0 1e07e140 00000000 00000a60 00000000 00000000  
[43599.280685] R f1dd63a8 (f1dd44e0 31dd44e0) 31dd4000 1e078040 00000000 00000a40 00000000 00000000  
[43599.280693] R f1dd6000 (f1dd4000 31dd4000) 31dd4020 1e07b0c0 00000000 00000a50 00000000 00000000  
[43599.280701] R f1dd6018 (f1dd4020 31dd4020) 31dd4040 1e07c100 00000000 00000a40 00000000 00000000  
[43599.280708] R f1dd6030 (f1dd4040 31dd4040) 31dd4060 1e07a080 00000000 00000a60 00000000 00000000  
[43599.280716] R f1dd6048 (f1dd4060 31dd4060) 31dd4080 1e1b9040 00000000 00000a70 00000000 00000000  
[43599.280723] R f1dd6060 (f1dd4080 31dd4080) 31dd40a0 1e0f5100 00000000 00000a70 00000000 00000000  
[43599.280731] R f1dd6078 (f1dd40a0 31dd40a0) 31dd40c0 34c35100 00000000 00000a70 00000000 00000000  
[43599.280739] R f1dd6090 (f1dd40c0 31dd40c0) 31dd40e0 34c34100 00000000 00000a40 00000000 00000000  
[43599.280746] R f1dd60a8 (f1dd40e0 31dd40e0) 31dd4100 34c32080 00000000 00000a60 00000000 00000000  
[43599.280754] R f1dd60c0 (f1dd4100 31dd4100) 31dd4120 31e8b0c0 00000000 00000a50 00000000 00000000  
[43599.280761] R f1dd60d8 (f1dd4120 31dd4120) 31dd4140 31e8d100 00000000 00000a70 00000000 00000000  
[43599.280769] R f1dd60f0 (f1dd4140 31dd4140) 31dd4160 31e88040 00000000 00000a40 00000000 00000000  
[43599.280776] R f1dd6108 (f1dd4160 31dd4160) 31dd4180 31e8c100 00000000 00000a40 00000000 00000000  
[43599.280784] R f1dd6120 (f1dd4180 31dd4180) 31dd41a0 31e89040 00000000 00000a70 00000000 00000000  
[43599.280792] R f1dd6138 (f1dd41a0 31dd41a0) 31dd41c0 1e086140 00000000 00000a60 00000000 00000000  
[43599.280799] R f1dd6150 (f1dd41c0 31dd41c0) 31dd41e0 1e080040 00000000 00000a40 00000000 00000000  
[43599.280807] R f1dd6168 (f1dd41e0 31dd41e0) 31dd41e0 1e0830c0 00000000 00000a50 00000000 00000000  
[43599.690267] rx queue 31dd42a0, link f1dd4260
[43599.690278] R f1dd61e0 (f1dd4280 31dd4280) 31dd42a0 1e0c6140 00000000 00000a60 134d8041 134d8041 *
[43599.690286] R f1dd61f8 (f1dd42a0 31dd42a0) 31dd42c0 1e0c4100 00000000 00000a40 00000000 00000000  
[43599.690293] R f1dd6210 (f1dd42c0 31dd42c0) 31dd42e0 1e0f30c0 00000000 00000a50 00000000 00000000  
[43599.690301] R f1dd6228 (f1dd42e0 31dd42e0) 31dd4300 1e0f4100 00000000 00000a40 00000000 00000000  
[43599.690308] R f1dd6240 (f1dd4300 31dd4300) 31dd4320 1e0f0040 00000000 00000a40 00000000 00000000  
[43599.690316] R f1dd6258 (f1dd4320 31dd4320) 31dd4340 1e0f2080 00000000 00000a60 00000000 00000000  
[43599.690323] R f1dd6270 (f1dd4340 31dd4340) 31dd4360 1e0f1040 00000000 00000a70 00000000 00000000  
[43599.690331] R f1dd6288 (f1dd4360 31dd4360) 31dd4380 1e0f6140 00000000 00000a60 00000000 00000000  
[43599.690338] R f1dd62a0 (f1dd4380 31dd4380) 31dd43a0 1e07d100 00000000 00000a70 00000000 00000000  
[43599.690346] R f1dd62b8 (f1dd43a0 31dd43a0) 31dd43c0 1e1bd100 00000000 00000a70 00000000 00000000  
[43599.690354] R f1dd62d0 (f1dd43c0 31dd43c0) 31dd43e0 1e1bb0c0 00000000 00000a50 00000000 00000000  
[43599.690361] R f1dd62e8 (f1dd43e0 31dd43e0) 31dd4400 1e1be140 00000000 00000a60 00000000 00000000  
[43599.690369] R f1dd6300 (f1dd4400 31dd4400) 31dd4420 1e1ba080 00000000 00000a60 00000000 00000000  
[43599.690376] R f1dd6318 (f1dd4420 31dd4420) 31dd4440 1e1bc100 00000000 00000a40 00000000 00000000  
[43599.690384] R f1dd6330 (f1dd4440 31dd4440) 31dd4460 1e1b8040 00000000 00000a40 00000000 00000000  
[43599.690391] R f1dd6348 (f1dd4460 31dd4460) 31dd4480 34c36140 00000000 00000a60 00000000 00000000  
[43599.690399] R f1dd6360 (f1dd4480 31dd4480) 31dd44a0 1e082080 00000000 00000a60 00000000 00000000  
[43599.690406] R f1dd6378 (f1dd44a0 31dd44a0) 31dd44c0 1e079040 00000000 00000a70 00000000 00000000  
[43599.690414] R f1dd6390 (f1dd44c0 31dd44c0) 31dd44e0 1e07e140 00000000 00000a60 00000000 00000000  
[43599.690421] R f1dd63a8 (f1dd44e0 31dd44e0) 31dd4000 1e078040 00000000 00000a40 00000000 00000000  
[43599.690429] R f1dd6000 (f1dd4000 31dd4000) 31dd4020 1e07b0c0 00000000 00000a50 00000000 00000000  
[43599.690437] R f1dd6018 (f1dd4020 31dd4020) 31dd4040 1e07c100 00000000 00000a40 00000000 00000000  
[43599.690444] R f1dd6030 (f1dd4040 31dd4040) 31dd4060 1e07a080 00000000 00000a60 00000000 00000000  
[43599.690452] R f1dd6048 (f1dd4060 31dd4060) 31dd4080 1e1b9040 00000000 00000a70 00000000 00000000  
[43599.690459] R f1dd6060 (f1dd4080 31dd4080) 31dd40a0 1e0f5100 00000000 00000a70 00000000 00000000  
[43599.690467] R f1dd6078 (f1dd40a0 31dd40a0) 31dd40c0 34c35100 00000000 00000a70 00000000 00000000  
[43599.690474] R f1dd6090 (f1dd40c0 31dd40c0) 31dd40e0 34c34100 00000000 00000a40 00000000 00000000  
[43599.690482] R f1dd60a8 (f1dd40e0 31dd40e0) 31dd4100 34c32080 00000000 00000a60 00000000 00000000  
[43599.690489] R f1dd60c0 (f1dd4100 31dd4100) 31dd4120 31e8b0c0 00000000 00000a50 00000000 00000000  
[43599.690497] R f1dd60d8 (f1dd4120 31dd4120) 31dd4140 31e8d100 00000000 00000a70 00000000 00000000  
[43599.690504] R f1dd60f0 (f1dd4140 31dd4140) 31dd4160 31e88040 00000000 00000a40 00000000 00000000  
[43599.690512] R f1dd6108 (f1dd4160 31dd4160) 31dd4180 31e8c100 00000000 00000a40 00000000 00000000  
[43599.690519] R f1dd6120 (f1dd4180 31dd4180) 31dd41a0 31e89040 00000000 00000a70 00000000 00000000  
[43599.690527] R f1dd6138 (f1dd41a0 31dd41a0) 31dd41c0 1e086140 00000000 00000a60 00000000 00000000  
[43599.690534] R f1dd6150 (f1dd41c0 31dd41c0) 31dd41e0 1e080040 00000000 00000a40 00000000 00000000  
[43599.690542] R f1dd6168 (f1dd41e0 31dd41e0) 31dd4200 1e0830c0 00000000 00000a50 00000000 00000000  
[43599.690550] R f1dd6180 (f1dd4200 31dd4200) 31dd4220 1e081040 00000000 00000a70 00000000 00000000  
[43599.690557] R f1dd6198 (f1dd4220 31dd4220) 31dd4240 1e084100 00000000 00000a40 00000000 00000000  
[43599.690565] R f1dd61b0 (f1dd4240 31dd4240) 31dd4260 1e085100 00000000 00000a70 00000000 00000000  
[43599.690572] R f1dd61c8 (f1dd4260 31dd4260) 31dd4260 1e0c30c0 00000000 00000a50 00000000 00000000  
[43600.099612] rx queue 31dd4320, link f1dd42e0
[43600.099623] R f1dd6240 (f1dd4300 31dd4300) 31dd4320 1e0f0040 00000000 00000a40 133d8041 133d8041 *
[43600.099631] R f1dd6258 (f1dd4320 31dd4320) 31dd4340 1e0f2080 00000000 00000a60 00000000 00000000  
[43600.099639] R f1dd6270 (f1dd4340 31dd4340) 31dd4360 1e0f1040 00000000 00000a70 00000000 00000000  
[43600.099646] R f1dd6288 (f1dd4360 31dd4360) 31dd4380 1e0f6140 00000000 00000a60 00000000 00000000  
[43600.099654] R f1dd62a0 (f1dd4380 31dd4380) 31dd43a0 1e07d100 00000000 00000a70 00000000 00000000  
[43600.099661] R f1dd62b8 (f1dd43a0 31dd43a0) 31dd43c0 1e1bd100 00000000 00000a70 00000000 00000000  
[43600.099669] R f1dd62d0 (f1dd43c0 31dd43c0) 31dd43e0 1e1bb0c0 00000000 00000a50 00000000 00000000  
[43600.099676] R f1dd62e8 (f1dd43e0 31dd43e0) 31dd4400 1e1be140 00000000 00000a60 00000000 00000000  
[43600.099684] R f1dd6300 (f1dd4400 31dd4400) 31dd4420 1e1ba080 00000000 00000a60 00000000 00000000  
[43600.099691] R f1dd6318 (f1dd4420 31dd4420) 31dd4440 1e1bc100 00000000 00000a40 00000000 00000000  
[43600.099699] R f1dd6330 (f1dd4440 31dd4440) 31dd4460 1e1b8040 00000000 00000a40 00000000 00000000  
[43600.099706] R f1dd6348 (f1dd4460 31dd4460) 31dd4480 34c36140 00000000 00000a60 00000000 00000000  
[43600.099714] R f1dd6360 (f1dd4480 31dd4480) 31dd44a0 1e082080 00000000 00000a60 00000000 00000000  
[43600.099721] R f1dd6378 (f1dd44a0 31dd44a0) 31dd44c0 1e079040 00000000 00000a70 00000000 00000000  
[43600.099729] R f1dd6390 (f1dd44c0 31dd44c0) 31dd44e0 1e07e140 00000000 00000a60 00000000 00000000  
[43600.099736] R f1dd63a8 (f1dd44e0 31dd44e0) 31dd4000 1e078040 00000000 00000a40 00000000 00000000  
[43600.099744] R f1dd6000 (f1dd4000 31dd4000) 31dd4020 1e07b0c0 00000000 00000a50 00000000 00000000  
[43600.099751] R f1dd6018 (f1dd4020 31dd4020) 31dd4040 1e07c100 00000000 00000a40 00000000 00000000  
[43600.099759] R f1dd6030 (f1dd4040 31dd4040) 31dd4060 1e07a080 00000000 00000a60 00000000 00000000  
[43600.099766] R f1dd6048 (f1dd4060 31dd4060) 31dd4080 1e1b9040 00000000 00000a70 00000000 00000000  
[43600.099774] R f1dd6060 (f1dd4080 31dd4080) 31dd40a0 1e0f5100 00000000 00000a70 00000000 00000000  
[43600.099781] R f1dd6078 (f1dd40a0 31dd40a0) 31dd40c0 34c35100 00000000 00000a70 00000000 00000000  
[43600.099789] R f1dd6090 (f1dd40c0 31dd40c0) 31dd40e0 34c34100 00000000 00000a40 00000000 00000000  
[43600.099796] R f1dd60a8 (f1dd40e0 31dd40e0) 31dd4100 34c32080 00000000 00000a60 00000000 00000000  
[43600.099804] R f1dd60c0 (f1dd4100 31dd4100) 31dd4120 31e8b0c0 00000000 00000a50 00000000 00000000  
[43600.099811] R f1dd60d8 (f1dd4120 31dd4120) 31dd4140 31e8d100 00000000 00000a70 00000000 00000000  
[43600.099819] R f1dd60f0 (f1dd4140 31dd4140) 31dd4160 31e88040 00000000 00000a40 00000000 00000000  
[43600.099826] R f1dd6108 (f1dd4160 31dd4160) 31dd4180 31e8c100 00000000 00000a40 00000000 00000000  
[43600.099834] R f1dd6120 (f1dd4180 31dd4180) 31dd41a0 31e89040 00000000 00000a70 00000000 00000000  
[43600.099841] R f1dd6138 (f1dd41a0 31dd41a0) 31dd41c0 1e086140 00000000 00000a60 00000000 00000000  
[43600.099849] R f1dd6150 (f1dd41c0 31dd41c0) 31dd41e0 1e080040 00000000 00000a40 00000000 00000000  
[43600.099856] R f1dd6168 (f1dd41e0 31dd41e0) 31dd4200 1e0830c0 00000000 00000a50 00000000 00000000  
[43600.099864] R f1dd6180 (f1dd4200 31dd4200) 31dd4220 1e081040 00000000 00000a70 00000000 00000000  
[43600.099871] R f1dd6198 (f1dd4220 31dd4220) 31dd4240 1e084100 00000000 00000a40 00000000 00000000  
[43600.099879] R f1dd61b0 (f1dd4240 31dd4240) 31dd4260 1e085100 00000000 00000a70 00000000 00000000  
[43600.099886] R f1dd61c8 (f1dd4260 31dd4260) 31dd4280 1e0c30c0 00000000 00000a50 00000000 00000000  
[43600.099894] R f1dd61e0 (f1dd4280 31dd4280) 31dd42a0 1e0c0040 00000000 00000a40 00000000 00000000  
[43600.099901] R f1dd61f8 (f1dd42a0 31dd42a0) 31dd42c0 1e0c6140 00000000 00000a60 00000000 00000000  
[43600.099908] R f1dd6210 (f1dd42c0 31dd42c0) 31dd42e0 1e0c4100 00000000 00000a40 00000000 00000000  
[43600.099916] R f1dd6228 (f1dd42e0 31dd42e0) 31dd42e0 1e0c1040 00000000 00000a70 00000000 00000000  
[43600.112367] ath5k phy0: unsupported jumbo
[43600.304545] rx queue 31dd43a0, link f1dd4380

Is there anything out of the ordinary in the above?

-- 
Sitsofe | http://sucs.org/~sits/

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-03-31  8:30                                                       ` Sitsofe Wheeler
@ 2009-05-13 21:44                                                         ` Sitsofe Wheeler
  2009-05-15  4:09                                                           ` Bob Copeland
  0 siblings, 1 reply; 66+ messages in thread
From: Sitsofe Wheeler @ 2009-05-13 21:44 UTC (permalink / raw)
  To: Bob Copeland
  Cc: Jiri Slaby, Nick Kossifidis, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Tue, Mar 31, 2009 at 09:30:41AM +0100, Sitsofe Wheeler wrote:
> On Sun, Mar 29, 2009 at 11:14:01AM -0400, Bob Copeland wrote:
> > 
> > No, thanks - the debug output will be plenty verbose already and should
> > tell everything we need to know.
> 
> Frustratingly despite leaving the machine on for two nights, the slab
> poison message has not reappeared while debugging was on. Unfortunately
> the debug messages rapidly fill up the SSD so I resorted to stopping
> syslogd, upping the size of the kernel message buffer and using scripts
> like the following:

Well I've moved home and the good news is that I've been able to
reproduce the bug at the new place with a 2.6.30 kernel:

[    0.000000] Linux version 2.6.30-rc4-00336-g8c9ed89 (sw612@) (gcc version 4.2.4) #140 Sat May 9 11:06:14 BST 2009
...
[ 3896.637160] =============================================================================
[ 3896.637174] BUG kmalloc-4096: Poison overwritten
[ 3896.637179] -----------------------------------------------------------------------------
[ 3896.637182] 
[ 3896.637189] INFO: 0xeeda8020-0xeeda8097. First byte 0x80 instead of 0x6b
[ 3896.637206] INFO: Allocated in dev_alloc_skb+0x21/0x40 age=1586 cpu=0 pid=0
[ 3896.637216] INFO: Freed in skb_release_data+0x5e/0x90 age=205 cpu=0 pid=0
[ 3896.637224] INFO: Slab 0xc15db500 objects=7 used=0 fp=0xeedae120 flags=0x40004082
[ 3896.637231] INFO: Object 0xeeda8000 @offset=0 fp=0x(null)
[ 3896.637234] 
[ 3896.637240]   Object 0xeeda8000:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.637274]   Object 0xeeda8010:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.637307]   Object 0xeeda8020:  80 00 00 00 ff ff ff ff ff ff 00 01 38 d6 0b 4f ....ÿÿÿÿÿÿ..8Ö.O
[ 3896.637341]   Object 0xeeda8030:  00 01 38 d6 0b 4f 70 6e ea 01 ac 87 ee 00 00 00 ..8Ö.Opnê.¬.î...
[ 3896.637374]   Object 0xeeda8040:  64 00 31 04 00 04 57 69 66 69 01 08 82 84 8b 96 d.1...Wifi......
[ 3896.637407]   Object 0xeeda8050:  8c 12 98 24 03 01 01 07 0a 47 42 20 01 0d 14 01 ...$.....GB.....
[ 3896.637440]   Object 0xeeda8060:  0d 14 00 2a 01 00 32 04 b0 48 60 6c 30 18 01 00 ...*..2.°H`l0...
[ 3896.637473]   Object 0xeeda8070:  00 0f ac 02 02 00 00 0f ac 02 00 0f ac 04 01 00 ..¬.....¬...¬...
[ 3896.637506]   Object 0xeeda8080:  00 0f ac 02 05 00 dd 05 00 10 91 04 00 05 04 00 ..¬...Ý.........
[ 3896.637538]   Object 0xeeda8090:  01 00 00 c2 2d b0 dc dc 6b 6b 6b 6b 6b 6b 6b 6b ...Â-°ÜÜkkkkkkkk
[ 3896.637571]   Object 0xeeda80a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.637604]   Object 0xeeda80b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.637638]   Object 0xeeda80c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.637671]   Object 0xeeda80d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.637704]   Object 0xeeda80e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.637737]   Object 0xeeda80f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.637770]   Object 0xeeda8100:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.637803]   Object 0xeeda8110:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.637836]   Object 0xeeda8120:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
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[ 3896.638040]   Object 0xeeda8960:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8970:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8980:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8990:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda89a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda89b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda89c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda89d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda89e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda89f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8a00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8a10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8a20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8a30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8a40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8a50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8a60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8a70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8a80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8a90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8aa0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8ab0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8ac0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8ad0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8ae0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8af0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8b00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8b10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8b20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8b30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8b40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8b50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8b60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8b70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8b80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8b90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8ba0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8bb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8bc0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8bd0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8be0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8bf0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8c00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8c10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8c20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8c30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8c40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8c50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8c60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8c70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8c80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8c90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8ca0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8cb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8cc0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8cd0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8ce0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8cf0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8d00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8d10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8d20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8d30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8d40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8d50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8d60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8d70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8d80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8d90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8da0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8db0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8dc0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8dd0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8de0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8df0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8e00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8e10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8e20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8e30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8e40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8e50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8e60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8e70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8e80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8e90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8ea0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8eb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8ec0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8ed0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8ee0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8ef0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8f00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8f10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8f20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8f30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8f40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8f50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8f60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8f70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8f80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8f90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8fa0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8fb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8fc0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8fd0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8fe0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 3896.638040]   Object 0xeeda8ff0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 kkkkkkkkkkkkkkk¥
[ 3896.638040]  Redzone 0xeeda9000:  bb bb bb bb                                     »»»»            
[ 3896.638040]  Padding 0xeeda9028:  5a 5a 5a 5a 5a 5a 5a 5a                         ZZZZZZZZ        
[ 3896.638040] Pid: 0, comm: swapper Not tainted 2.6.30-rc4-00336-g8c9ed89 #140
[ 3896.638040] Call Trace:
[ 3896.638040]  [<c018ed74>] print_trailer+0xb4/0xf0
[ 3896.638040]  [<c018ee57>] check_bytes_and_report+0xa7/0xd0
[ 3896.638040]  [<c018ff1e>] check_object+0x1ae/0x1f0
[ 3896.638040]  [<c019002b>] __free_slab+0xcb/0x100
[ 3896.638040]  [<c0190081>] discard_slab+0x21/0x40
[ 3896.638040]  [<c01902d1>] __slab_free+0xc1/0x270
[ 3896.638040]  [<c0190526>] kfree+0xa6/0x170
[ 3896.638040]  [<c03a92ee>] ? skb_release_data+0x5e/0x90
[ 3896.638040]  [<c03a92ee>] ? skb_release_data+0x5e/0x90
[ 3896.638040]  [<c03a92ee>] skb_release_data+0x5e/0x90
[ 3896.638040]  [<c03a9337>] skb_release_all+0x17/0x20
[ 3896.638040]  [<c03a8ff0>] __kfree_skb+0x10/0x90
[ 3896.638040]  [<c03a908e>] consume_skb+0x1e/0x40
[ 3896.638040]  [<c041f8bc>] __ieee80211_rx_handle_packet+0x60c/0x730
[ 3896.638040]  [<c014dc49>] ? __lock_acquire+0x339/0x5e0
[ 3896.638040]  [<c041fe66>] __ieee80211_rx+0x1c6/0x670
[ 3896.638040]  [<c041fd30>] ? __ieee80211_rx+0x90/0x670
[ 3896.638040]  [<c0320825>] ? ath5k_hw_get_tsf64+0x55/0xa0
[ 3896.638040]  [<c0329c43>] ath5k_tasklet_rx+0x343/0x730
[ 3896.638040]  [<c012d5e4>] tasklet_action+0x44/0x90
[ 3896.638040]  [<c012d0c5>] __do_softirq+0x75/0x1a0
[ 3896.638040]  [<c0434c62>] ? _spin_unlock+0x22/0x30
[ 3896.638040]  [<c012d245>] do_softirq+0x55/0x60
[ 3896.638040]  [<c012d52c>] irq_exit+0x6c/0x80
[ 3896.638040]  [<c0104dc7>] do_IRQ+0x47/0x90
[ 3896.638040]  [<c0142fab>] ? getnstimeofday+0x5b/0x120
[ 3896.638040]  [<c01034ae>] common_interrupt+0x2e/0x34
[ 3896.638040]  [<c014007b>] ? hrtimer_nanosleep+0x5b/0x110
[ 3896.638040]  [<c028fe9b>] ? acpi_idle_enter_bm+0x1d4/0x1fd
[ 3896.638040]  [<c0374eec>] cpuidle_idle_call+0x6c/0xc0
[ 3896.638040]  [<c05b2500>] ? unknown_bootoption+0x0/0x210
[ 3896.638040]  [<c0101d61>] cpu_idle+0x41/0x60
[ 3896.638040]  [<c04291e5>] rest_init+0x55/0x60
[ 3896.638040]  [<c05b2b4a>] start_kernel+0x26a/0x300
[ 3896.638040]  [<c05b2500>] ? unknown_bootoption+0x0/0x210
[ 3896.638040]  [<c05b2395>] ? reserve_ebda_region+0x55/0x70
[ 3896.638040]  [<c05b2302>] i386_start_kernel+0x52/0x90
[ 3896.638040] FIX kmalloc-4096: Restoring 0xeeda8020-0xeeda8097=0x6b
[ 3896.638040] 
[ 5552.050723] =============================================================================
[ 5552.050736] BUG kmalloc-4096: Poison overwritten
[ 5552.050741] -----------------------------------------------------------------------------
[ 5552.050745] 
[ 5552.050751] INFO: 0xeed66140-0xeed661af. First byte 0x80 instead of 0x6b
[ 5552.050768] INFO: Allocated in dev_alloc_skb+0x21/0x40 age=1820 cpu=0 pid=2296
[ 5552.050779] INFO: Freed in skb_release_data+0x5e/0x90 age=283 cpu=0 pid=0
[ 5552.050787] INFO: Slab 0xc15dac00 objects=7 used=5 fp=0xeed66120 flags=0x400040c3
[ 5552.050794] INFO: Object 0xeed66120 @offset=24864 fp=0xeed63090
[ 5552.050796] 
[ 5552.050801] Bytes b4 0xeed66110:  00 00 00 00 b6 1e 50 00 5a 5a 5a 5a 5a 5a 5a 5a ....¶.P.ZZZZZZZZ
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[ 5552.051669]   Object 0xeed66990:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed669a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed669b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed669c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed669d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed669e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed669f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66a00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66a10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66a20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66a30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66a40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66a50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66a60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66a70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66a80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66a90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66aa0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66ab0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66ac0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66ad0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66ae0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66af0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66b00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66b10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66b20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66b30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66b40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66b50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66b60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66b70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66b80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66b90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66ba0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66bb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66bc0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66bd0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66be0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66bf0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66c00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66c10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66c20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66c30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66c40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66c50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66c60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66c70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66c80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66c90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66ca0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66cb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66cc0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66cd0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66ce0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66cf0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66d00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66d10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66d20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66d30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66d40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66d50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66d60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66d70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66d80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66d90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66da0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66db0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66dc0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66dd0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66de0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66df0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66e00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66e10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66e20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66e30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66e40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66e50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66e60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66e70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66e80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66e90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66ea0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66eb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66ec0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66ed0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66ee0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66ef0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66f00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66f10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66f20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66f30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66f40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66f50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66f60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66f70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66f80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66f90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66fa0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66fb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66fc0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66fd0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66fe0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed66ff0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed67000:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed67010:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed67020:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed67030:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed67040:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed67050:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed67060:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed67070:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed67080:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed67090:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed670a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed670b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed670c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed670d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed670e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed670f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed67100:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 5552.051669]   Object 0xeed67110:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 kkkkkkkkkkkkkkk¥
[ 5552.051669]  Redzone 0xeed67120:  bb bb bb bb                                     »»»»            
[ 5552.051669]  Padding 0xeed67148:  5a 5a 5a 5a 5a 5a 5a 5a                         ZZZZZZZZ        
[ 5552.051669] Pid: 0, comm: swapper Not tainted 2.6.30-rc4-00336-g8c9ed89 #140
[ 5552.051669] Call Trace:
[ 5552.051669]  [<c018ed74>] print_trailer+0xb4/0xf0
[ 5552.051669]  [<c018ee57>] check_bytes_and_report+0xa7/0xd0
[ 5552.051669]  [<c018ff1e>] check_object+0x1ae/0x1f0
[ 5552.051669]  [<c0190baf>] __slab_alloc+0x46f/0x510
[ 5552.051669]  [<c0190e19>] ? kmem_cache_alloc+0xc9/0x150
[ 5552.051669]  [<c0191c89>] __kmalloc_track_caller+0x1c9/0x1e0
[ 5552.051669]  [<c03a9a11>] ? dev_alloc_skb+0x21/0x40
[ 5552.051669]  [<c03a939e>] ? __alloc_skb+0x2e/0x120
[ 5552.051669]  [<c03a9a11>] ? dev_alloc_skb+0x21/0x40
[ 5552.051669]  [<c03a93c4>] __alloc_skb+0x54/0x120
[ 5552.051669]  [<c03a9a11>] dev_alloc_skb+0x21/0x40
[ 5552.051669]  [<c0328408>] ath5k_rx_skb_alloc+0x28/0x1b0
[ 5552.051669]  [<c0434d4e>] ? _spin_lock+0x3e/0x50
[ 5552.051669]  [<c0329a5d>] ath5k_tasklet_rx+0x15d/0x730
[ 5552.051669]  [<c014dc49>] ? __lock_acquire+0x339/0x5e0
[ 5552.051669]  [<c012d5e4>] tasklet_action+0x44/0x90
[ 5552.051669]  [<c012d0c5>] __do_softirq+0x75/0x1a0
[ 5552.051669]  [<c0434c62>] ? _spin_unlock+0x22/0x30
[ 5552.051669]  [<c012d245>] do_softirq+0x55/0x60
[ 5552.051669]  [<c012d52c>] irq_exit+0x6c/0x80
[ 5552.051669]  [<c0104dc7>] do_IRQ+0x47/0x90
[ 5552.051669]  [<c0142fab>] ? getnstimeofday+0x5b/0x120
[ 5552.051669]  [<c01034ae>] common_interrupt+0x2e/0x34
[ 5552.051669]  [<c014007b>] ? hrtimer_nanosleep+0x5b/0x110
[ 5552.051669]  [<c028fe9b>] ? acpi_idle_enter_bm+0x1d4/0x1fd
[ 5552.051669]  [<c0374eec>] cpuidle_idle_call+0x6c/0xc0
[ 5552.051669]  [<c05b2500>] ? unknown_bootoption+0x0/0x210
[ 5552.051669]  [<c0101d61>] cpu_idle+0x41/0x60
[ 5552.051669]  [<c04291e5>] rest_init+0x55/0x60
[ 5552.051669]  [<c05b2b4a>] start_kernel+0x26a/0x300
[ 5552.051669]  [<c05b2500>] ? unknown_bootoption+0x0/0x210
[ 5552.051669]  [<c05b2395>] ? reserve_ebda_region+0x55/0x70
[ 5552.051669]  [<c05b2302>] i386_start_kernel+0x52/0x90
[ 5552.051669] FIX kmalloc-4096: Restoring 0xeed66140-0xeed661af=0x6b
[ 5552.051669] 
[ 5552.051669] FIX kmalloc-4096: Marking all objects used

Could you repost the patches you wanted me to test with against the
latest kernel?

-- 
Sitsofe | http://sucs.org/~sits/

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-05-13 21:44                                                         ` Sitsofe Wheeler
@ 2009-05-15  4:09                                                           ` Bob Copeland
  2009-05-18 10:05                                                             ` Sitsofe Wheeler
  0 siblings, 1 reply; 66+ messages in thread
From: Bob Copeland @ 2009-05-15  4:09 UTC (permalink / raw)
  To: Sitsofe Wheeler
  Cc: Jiri Slaby, Nick Kossifidis, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Wed, May 13, 2009 at 10:44:17PM +0100, Sitsofe Wheeler wrote:
> Could you repost the patches you wanted me to test with against the
> latest kernel?

This is too ugly to live, but I'd like to know if you can reproduce
with this patch.  If it still happens, then I guess it's back to
debugging patches.  I'd love to be able to replicate this here :(

diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c
index a08bc8a..e01da34 100644
--- a/drivers/net/wireless/ath5k/base.c
+++ b/drivers/net/wireless/ath5k/base.c
@@ -1143,6 +1143,13 @@ struct sk_buff *ath5k_rx_skb_alloc(struct ath5k_softc *sc, dma_addr_t *skb_addr)
 }
 
 static int
+ath5k_rxbuf_requeue(struct ath5k_softc *sc, struct ath5k_buf *bf)
+{
+	list_move_tail(&bf->list, &sc->rxbuf);
+	return ath5k_rxbuf_setup(sc, bf);
+}
+
+static int
 ath5k_rxbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf)
 {
 	struct ath5k_hw *ah = sc->ah;
@@ -1751,7 +1758,7 @@ ath5k_tasklet_rx(unsigned long data)
 		goto unlock;
 	}
 	bf_last = list_entry(sc->rxbuf.prev, struct ath5k_buf, list);
-	do {
+	for (;;) {
 		rxs.flag = 0;
 
 		bf = list_first_entry(&sc->rxbuf, struct ath5k_buf, list);
@@ -1904,13 +1911,18 @@ accept:
 		if (sc->opmode == NL80211_IFTYPE_ADHOC)
 			ath5k_check_ibss_tsf(sc, skb, &rxs);
 
-		__ieee80211_rx(sc->hw, skb, &rxs);
-
 		bf->skb = next_skb;
 		bf->skbaddr = next_skb_addr;
+		if (ath5k_rxbuf_requeue(sc, bf))
+			break;
+
+		__ieee80211_rx(sc->hw, skb, &rxs);
+		continue;
 next:
-		list_move_tail(&bf->list, &sc->rxbuf);
-	} while (ath5k_rxbuf_setup(sc, bf) == 0);
+		if (ath5k_rxbuf_requeue(sc, bf))
+			break;
+	}
+
 unlock:
 	spin_unlock(&sc->rxbuflock);
 }

-- 
Bob Copeland %% www.bobcopeland.com


^ permalink raw reply related	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-05-15  4:09                                                           ` Bob Copeland
@ 2009-05-18 10:05                                                             ` Sitsofe Wheeler
  2009-05-22  9:39                                                               ` Sitsofe Wheeler
  0 siblings, 1 reply; 66+ messages in thread
From: Sitsofe Wheeler @ 2009-05-18 10:05 UTC (permalink / raw)
  To: Bob Copeland
  Cc: Jiri Slaby, Nick Kossifidis, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Fri, May 15, 2009 at 12:09:04AM -0400, Bob Copeland wrote:
> 
> This is too ugly to live, but I'd like to know if you can reproduce
> with this patch.  If it still happens, then I guess it's back to

I'll try but to this day I still have no clue how to trigger this issue.
I can seemingly go days/weeks without seeing it...

> debugging patches.  I'd love to be able to replicate this here :(

I just wish I could reproduce it on demand. It's so erratic I can't help
feeling the circumstances that make it happen are beyond my control
(e.g. someone else's access point being powered on at that moment /
hardware failure). It's happened in three different places (two houses
and one University) with different access points (one old 802.11b AP
doing WEP, enterprise 802.11g APs at the University doing WPA2 and a
recently purchased ADSL modem/AP doing WPA2 again doing 802.11g). At all
sites it has been possible to see multiple APs (although at the
University it's most likely those APs are going to be on the same
network/configured similarly). It only seems to happen while associated
with an AP. It does not need the computer to have been suspend to
happen. It can happen during the first connection to the AP (no need to
have roamed). So far the issue has never occurred in the first 1000
seconds of being connected to an AP.

One other thing I noticed was that one day I suspend and went home and I
found the AP I was connected to was still showing up in iwlist scan even
though it had been many hours (at least 10) since the last beacon had
been received from that AP ("Extra: Last beacon:" had a very big value).
The AP did not go away until after a reboot.

-- 
Sitsofe | http://sucs.org/~sits/

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-05-18 10:05                                                             ` Sitsofe Wheeler
@ 2009-05-22  9:39                                                               ` Sitsofe Wheeler
  2009-05-22 12:06                                                                 ` Bob Copeland
  2009-05-26 21:10                                                                 ` Sitsofe Wheeler
  0 siblings, 2 replies; 66+ messages in thread
From: Sitsofe Wheeler @ 2009-05-22  9:39 UTC (permalink / raw)
  To: Bob Copeland
  Cc: Jiri Slaby, Nick Kossifidis, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Mon, May 18, 2009 at 11:05:40AM +0100, Sitsofe Wheeler wrote:
> On Fri, May 15, 2009 at 12:09:04AM -0400, Bob Copeland wrote:
> > 
> > This is too ugly to live, but I'd like to know if you can reproduce
> > with this patch.  If it still happens, then I guess it's back to

The poison message has not reappeared but this morning there was a
sudden break in the connection. Only toggling the wifi via rfkill
brought things back to life. dmesg below:

[   30.490064] CPA self-test:
[   30.490262]  4k 4094 large 218 gb 0 x 4312[c0000000-f77fd000] miss 0
[   30.519860]  4k 189438 large 37 gb 0 x 189475[c0000000-f77fd000] miss 0
[   30.541985]  4k 189438 large 37 gb 0 x 189475[c0000000-f77fd000] miss 0
[   30.541991] ok.
[   71.438535] wlan0: authenticate with AP 00:01:38:d6:0b:4f
[   71.442153] wlan0: authenticated
[   71.442162] wlan0: associate with AP 00:01:38:d6:0b:4f
[   71.445143] wlan0: RX AssocResp from 00:01:38:d6:0b:4f (capab=0x431 status=0 aid=2)
[   71.445152] wlan0: associated
[ 5771.345217] ath5k phy0: noise floor calibration timeout (2412MHz)
[ 5774.632085] wlan0: no probe response from AP 00:01:38:d6:0b:4f - disassociating
[ 5774.869703] ath5k phy0: failed to wakeup the MAC Chip
[ 5774.869717] ath5k phy0: can't reset hardware (-5)
[ 5774.909190] ath5k phy0: failed to wakeup the MAC Chip
[ 5774.909197] ath5k phy0: can't reset hardware (-5)
[ 5774.952588] ath5k phy0: failed to wakeup the MAC Chip
[ 5774.952600] ath5k phy0: can't reset hardware (-5)
[ 5774.993967] ath5k phy0: failed to wakeup the MAC Chip
[ 5774.993977] ath5k phy0: can't reset hardware (-5)
[ 5775.035221] ath5k phy0: failed to wakeup the MAC Chip
[ 5777.075531] __ratelimit: 13 callbacks suppressed
[ 5777.075539] ath5k phy0: failed to wakeup the MAC Chip
[ 5777.075549] ath5k phy0: can't reset hardware (-5)
[ 5777.163583] ath5k phy0: failed to wakeup the MAC Chip
[ 5777.163598] ath5k phy0: can't reset hardware (-5)
[ 5777.232966] ath5k phy0: failed to wakeup the MAC Chip
[ 5777.232981] ath5k phy0: can't reset hardware (-5)
[ 5777.311548] ath5k phy0: failed to wakeup the MAC Chip
[ 5777.311562] ath5k phy0: can't reset hardware (-5)
[ 5777.373636] ath5k phy0: failed to wakeup the MAC Chip
[ 5777.373649] ath5k phy0: can't reset hardware (-5)
[ 5782.348301] __ratelimit: 12 callbacks suppressed
[ 5782.348312] ath5k phy0: noise floor calibration timeout (2412MHz)
[ 5782.728535] ath5k phy0: failed to wakeup the MAC Chip
[ 5782.728551] ath5k phy0: can't reset hardware (-5)
[ 5782.768293] ath5k phy0: failed to wakeup the MAC Chip
[ 5782.768303] ath5k phy0: can't reset hardware (-5)
[ 5782.822578] ath5k phy0: failed to wakeup the MAC Chip
[ 5782.822593] ath5k phy0: can't reset hardware (-5)
[ 5782.875552] ath5k phy0: failed to wakeup the MAC Chip
[ 5782.875566] ath5k phy0: can't reset hardware (-5)
[ 5782.918854] ath5k phy0: failed to wakeup the MAC Chip
[ 5788.256463] __ratelimit: 13 callbacks suppressed
[ 5788.256473] ath5k phy0: failed to wakeup the MAC Chip
[ 5788.256483] ath5k phy0: can't reset hardware (-5)
[ 5788.299282] ath5k phy0: failed to wakeup the MAC Chip
[ 5788.299294] ath5k phy0: can't reset hardware (-5)
[ 5788.352425] ath5k phy0: failed to wakeup the MAC Chip
[ 5788.352437] ath5k phy0: can't reset hardware (-5)
[ 5788.402450] ath5k phy0: failed to wakeup the MAC Chip
[ 5788.402462] ath5k phy0: can't reset hardware (-5)
[ 5788.457462] ath5k phy0: failed to wakeup the MAC Chip
[ 5788.457474] ath5k phy0: can't reset hardware (-5)
[ 5793.345245] __ratelimit: 12 callbacks suppressed
[ 5793.345255] ath5k phy0: noise floor calibration timeout (2412MHz)
[ 5793.881757] ath5k phy0: failed to wakeup the MAC Chip
[ 5793.881773] ath5k phy0: can't reset hardware (-5)
[ 5793.924596] ath5k phy0: failed to wakeup the MAC Chip
[ 5793.924609] ath5k phy0: can't reset hardware (-5)
[ 5793.979648] ath5k phy0: failed to wakeup the MAC Chip
[ 5793.979662] ath5k phy0: can't reset hardware (-5)
[ 5794.037673] ath5k phy0: failed to wakeup the MAC Chip
[ 5794.037688] ath5k phy0: can't reset hardware (-5)
[ 5794.089561] ath5k phy0: failed to wakeup the MAC Chip
[ 5803.075500] __ratelimit: 35 callbacks suppressed
[ 5803.075509] ath5k phy0: failed to wakeup the MAC Chip
[ 5803.075518] ath5k phy0: can't reset hardware (-5)
[ 5803.119747] ath5k phy0: failed to wakeup the MAC Chip
[ 5803.119761] ath5k phy0: can't reset hardware (-5)
[ 5803.161294] ath5k phy0: failed to wakeup the MAC Chip
[ 5803.161305] ath5k phy0: can't reset hardware (-5)
[ 5803.200990] ath5k phy0: failed to wakeup the MAC Chip
[ 5803.200999] ath5k phy0: can't reset hardware (-5)
[ 5803.245784] ath5k phy0: failed to wakeup the MAC Chip
[ 5803.245796] ath5k phy0: can't reset hardware (-5)
[ 5808.586487] __ratelimit: 13 callbacks suppressed
[ 5808.586497] ath5k phy0: failed to wakeup the MAC Chip
[ 5808.586506] ath5k phy0: can't reset hardware (-5)
[ 5808.629640] ath5k phy0: failed to wakeup the MAC Chip
[ 5808.629653] ath5k phy0: can't reset hardware (-5)
[ 5808.669017] ath5k phy0: failed to wakeup the MAC Chip
[ 5808.669025] ath5k phy0: can't reset hardware (-5)
[ 5808.779474] ath5k phy0: failed to wakeup the MAC Chip
[ 5808.779489] ath5k phy0: can't reset hardware (-5)
[ 5808.848331] ath5k phy0: failed to wakeup the MAC Chip
[ 5808.848345] ath5k phy0: can't reset hardware (-5)
[ 5814.339464] __ratelimit: 12 callbacks suppressed
[ 5814.339473] ath5k phy0: failed to wakeup the MAC Chip
[ 5814.339483] ath5k phy0: can't reset hardware (-5)
[ 5814.381830] ath5k phy0: failed to wakeup the MAC Chip
[ 5814.381842] ath5k phy0: can't reset hardware (-5)
[ 5814.425552] ath5k phy0: failed to wakeup the MAC Chip
[ 5814.425565] ath5k phy0: can't reset hardware (-5)
[ 5814.465221] ath5k phy0: failed to wakeup the MAC Chip
[ 5814.465230] ath5k phy0: can't reset hardware (-5)
[ 5814.508194] ath5k phy0: failed to wakeup the MAC Chip
[ 5814.508206] ath5k phy0: can't reset hardware (-5)
[ 5819.851562] __ratelimit: 13 callbacks suppressed
[ 5819.851571] ath5k phy0: failed to wakeup the MAC Chip
[ 5819.851581] ath5k phy0: can't reset hardware (-5)
[ 5819.895810] ath5k phy0: failed to wakeup the MAC Chip
[ 5819.895823] ath5k phy0: can't reset hardware (-5)
[ 5819.952022] ath5k phy0: failed to wakeup the MAC Chip
[ 5819.952035] ath5k phy0: can't reset hardware (-5)
[ 5819.996475] ath5k phy0: failed to wakeup the MAC Chip
[ 5819.996489] ath5k phy0: can't reset hardware (-5)
[ 5820.035965] ath5k phy0: failed to wakeup the MAC Chip
[ 5820.035974] ath5k phy0: can't reset hardware (-5)
[ 5825.463631] __ratelimit: 12 callbacks suppressed
[ 5825.463639] ath5k phy0: failed to wakeup the MAC Chip
[ 5825.463649] ath5k phy0: can't reset hardware (-5)
[ 5825.506403] ath5k phy0: failed to wakeup the MAC Chip
[ 5825.506415] ath5k phy0: can't reset hardware (-5)
[ 5825.564295] ath5k phy0: failed to wakeup the MAC Chip
[ 5825.564309] ath5k phy0: can't reset hardware (-5)
[ 5825.608777] ath5k phy0: failed to wakeup the MAC Chip
[ 5825.608790] ath5k phy0: can't reset hardware (-5)
[ 5825.654880] ath5k phy0: failed to wakeup the MAC Chip
[ 5825.654894] ath5k phy0: can't reset hardware (-5)
[ 5831.415476] __ratelimit: 13 callbacks suppressed
[ 5831.415485] ath5k phy0: failed to wakeup the MAC Chip
[ 5831.415496] ath5k phy0: can't reset hardware (-5)
[ 5831.458800] ath5k phy0: failed to wakeup the MAC Chip
[ 5831.458813] ath5k phy0: can't reset hardware (-5)
[ 5831.501080] ath5k phy0: failed to wakeup the MAC Chip
[ 5831.501092] ath5k phy0: can't reset hardware (-5)
[ 5831.604365] ath5k phy0: failed to wakeup the MAC Chip
[ 5831.604379] ath5k phy0: can't reset hardware (-5)
[ 5831.647234] ath5k phy0: failed to wakeup the MAC Chip
[ 5831.647246] ath5k phy0: can't reset hardware (-5)
[ 5834.122061] ath5k 0000:01:00.0: PCI INT A disabled
[ 5836.901310] pci 0000:01:00.0: reg 10 64bit mmio: [0x000000-0x00ffff]
[ 5836.901973] ath5k 0000:01:00.0: enabling device (0000 -> 0002)
[ 5836.901994] ath5k 0000:01:00.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18
[ 5836.902055] ath5k 0000:01:00.0: setting latency timer to 64
[ 5836.907782] ath5k 0000:01:00.0: registered as 'phy1'
[ 5837.054154] phy1: Selected rate control algorithm 'minstrel'
[ 5837.057517] ath5k phy1: Atheros AR2425 chip found (MAC: 0xe2, PHY: 0x70)
[ 5850.472102] wlan0: authenticate with AP 00:01:38:d6:0b:4f
[ 5850.474140] wlan0: authenticated
[ 5850.474149] wlan0: associate with AP 00:01:38:d6:0b:4f
[ 5850.476700] wlan0: RX AssocResp from 00:01:38:d6:0b:4f (capab=0x431 status=0 aid=2)
[ 5850.476708] wlan0: associated

Another weird thing that I've noticed with 2.6.30 kernels (although it
might be happening with older ones) is that periodically (maybe once a
day) the packet loss between the computer and the access point will
become very high and will stay that way until the computer is rebooted.
I do not know if toggling via rfkill will also solve that problem.

-- 
Sitsofe | http://sucs.org/~sits/

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-05-22  9:39                                                               ` Sitsofe Wheeler
@ 2009-05-22 12:06                                                                 ` Bob Copeland
  2009-05-26 21:10                                                                 ` Sitsofe Wheeler
  1 sibling, 0 replies; 66+ messages in thread
From: Bob Copeland @ 2009-05-22 12:06 UTC (permalink / raw)
  To: Sitsofe Wheeler
  Cc: Jiri Slaby, Nick Kossifidis, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Fri, May 22, 2009 at 10:39:31AM +0100, Sitsofe Wheeler wrote:
> The poison message has not reappeared but this morning there was a
> sudden break in the connection. Only toggling the wifi via rfkill
> brought things back to life. dmesg below:
> 
> [   71.445152] wlan0: associated
> [ 5771.345217] ath5k phy0: noise floor calibration timeout (2412MHz)
> [ 5774.632085] wlan0: no probe response from AP 00:01:38:d6:0b:4f - disassociating

Card got into a bad state here somehow, 

> [ 5774.869703] ath5k phy0: failed to wakeup the MAC Chip
> [ 5774.869717] ath5k phy0: can't reset hardware (-5)

-EIO, a really bad state (we're doing a lot of resets, not sure
offhand why -- maybe just the calibration timer since it doesn't
look like the channel is changing as would happen in a scan).  

When we see this either card isn't getting any power (e.g. due
to rfkill, but I think that happened later here) or card just
isn't responding.  Seems we should give up after a while rather
than spamming the log forever.

> [ 5834.122061] ath5k 0000:01:00.0: PCI INT A disabled

I take it this is when you hit rfkill, which also did an rmmod and
probably disconnected it from the bus?

> [ 5836.901310] pci 0000:01:00.0: reg 10 64bit mmio: [0x000000-0x00ffff]

and here's where you turned it back on...

> Another weird thing that I've noticed with 2.6.30 kernels (although it
> might be happening with older ones) is that periodically (maybe once a
> day) the packet loss between the computer and the access point will
> become very high and will stay that way until the computer is rebooted.
> I do not know if toggling via rfkill will also solve that problem.

It sounds like a similar case.  There's a patch on the way (I don't
think has hit 2.6.30 yet) that fixes a regression that can affect
calibration in 802.11g mode.

-- 
Bob Copeland %% www.bobcopeland.com


^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-05-22  9:39                                                               ` Sitsofe Wheeler
  2009-05-22 12:06                                                                 ` Bob Copeland
@ 2009-05-26 21:10                                                                 ` Sitsofe Wheeler
  2009-06-28 20:23                                                                   ` Sitsofe Wheeler
  1 sibling, 1 reply; 66+ messages in thread
From: Sitsofe Wheeler @ 2009-05-26 21:10 UTC (permalink / raw)
  To: Bob Copeland
  Cc: Jiri Slaby, Nick Kossifidis, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Fri, May 22, 2009 at 10:39:31AM +0100, Sitsofe Wheeler wrote:
> On Mon, May 18, 2009 at 11:05:40AM +0100, Sitsofe Wheeler wrote:
> > On Fri, May 15, 2009 at 12:09:04AM -0400, Bob Copeland wrote:
> > > 
> > > This is too ugly to live, but I'd like to know if you can reproduce
> > > with this patch.  If it still happens, then I guess it's back to
> 
> The poison message has not reappeared but this morning there was a

Yet again, I spoke too soon. This evening the following was in dmesg:

[    0.000000] Linux version 2.6.30-rc6-00026-g0f6f49a-dirty (@milan) (gcc version 4.2.4) #141 Sun May 17 16:30:00 BST 2009
<snip>
[11297.190882] PM: Finishing wakeup.
[11297.190887] Restarting tasks ... done.
[11306.158509] atl2 0000:03:00.0: irq 27 for MSI/MSI-X
[11320.692729] wlan0: authenticate with AP 00:1e:4a:07:5a:e0
[11320.892095] wlan0: authenticate with AP 00:1e:4a:07:5a:e0
[11320.894748] wlan0: authenticated
[11320.894757] wlan0: associate with AP 00:1e:4a:07:5a:e0
[11320.897842] wlan0: RX AssocResp from 00:1e:4a:07:5a:e0 (capab=0x431 status=0 aid=214)
[11320.897851] wlan0: associated
[11320.942976] cfg80211: Calling CRDA for country: GB
[11366.078522] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0
[11367.837863] wlan0: deauthenticating by local choice (reason=3)
[11371.345954] PM: Syncing filesystems ... done.
[11371.372369] PM: Preparing system for mem sleep
[11371.372413] Freezing user space processes ... (elapsed 0.00 seconds) done.
[11371.377617] Freezing remaining freezable tasks ... (elapsed 0.00 seconds) done.
[11371.377776] PM: Entering mem sleep
[11371.377852] Suspending console(s) (use no_console_suspend to debug)
[11371.391145] sd 1:0:1:0: [sdb] Stopping disk
[11371.391386] sd 1:0:0:0: [sda] Stopping disk
[11371.901859] pci 0000:00:02.0: PCI INT A disabled
[11371.912911] ath5k 0000:01:00.0: PCI INT A disabled
[11371.923268] ACPI handle has no context!
[11371.923281] atl2 0000:03:00.0: PME# disabled
[11371.923295] atl2 0000:03:00.0: PCI INT A disabled
[11371.923308] ACPI handle has no context!
[11371.934316] ata_piix 0000:00:1f.2: PCI INT B disabled
[11371.945082] ehci_hcd 0000:00:1d.7: PCI INT A disabled
[11371.945176] ehci_hcd 0000:00:1d.7: PME# disabled
[11371.956083] uhci_hcd 0000:00:1d.3: PCI INT D disabled
[11371.956161] uhci_hcd 0000:00:1d.2: PCI INT C disabled
[11371.956236] uhci_hcd 0000:00:1d.1: PCI INT B disabled
[11371.956311] uhci_hcd 0000:00:1d.0: PCI INT A disabled
[11371.967154] HDA Intel 0000:00:1b.0: PCI INT A disabled
[11371.978483] PM: suspend devices took 0.601 seconds
[11371.980429] ACPI: Preparing to enter system sleep state S3
[11372.019286] Intel machine check architecture supported.
[11372.019286] Intel machine check reporting enabled on CPU#0.
[11372.019286] Back to C!
[11372.019286] Force enabled HPET at resume
[11372.019286] ACPI: Waking up from system sleep state S3
[11372.097613] pci 0000:00:02.0: restoring config space at offset 0x1 (was 0x900007, writing 0x900003)
[11372.097774] HDA Intel 0000:00:1b.0: restoring config space at offset 0x1 (was 0x100006, writing 0x100002)
[11372.097879] pcieport-driver 0000:00:1c.0: restoring config space at offset 0x1 (was 0x100104, writing 0x100504)
[11372.098348] pcieport-driver 0000:00:1c.1: restoring config space at offset 0x1 (was 0x100106, writing 0x100506)
[11372.098498] pcieport-driver 0000:00:1c.2: restoring config space at offset 0x1 (was 0x100106, writing 0x100506)
[11372.098630] uhci_hcd 0000:00:1d.0: restoring config space at offset 0x1 (was 0x2800005, writing 0x2800001)
[11372.098696] uhci_hcd 0000:00:1d.1: restoring config space at offset 0x1 (was 0x2800005, writing 0x2800001)
[11372.098761] uhci_hcd 0000:00:1d.2: restoring config space at offset 0x1 (was 0x2800005, writing 0x2800001)
[11372.098826] uhci_hcd 0000:00:1d.3: restoring config space at offset 0x1 (was 0x2800005, writing 0x2800001)
[11372.098908] ehci_hcd 0000:00:1d.7: restoring config space at offset 0x1 (was 0x2900006, writing 0x2900002)
[11372.098956] pci 0000:00:1e.0: restoring config space at offset 0xf (was 0x60000, writing 0x600ff)
[11372.099691] ath5k 0000:01:00.0: restoring config space at offset 0xf (was 0x100, writing 0x10a)
[11372.099746] ath5k 0000:01:00.0: restoring config space at offset 0x4 (was 0x4, writing 0xfbef0004)
[11372.099761] ath5k 0000:01:00.0: restoring config space at offset 0x3 (was 0x0, writing 0x4)
[11372.099780] ath5k 0000:01:00.0: restoring config space at offset 0x1 (was 0x100000, writing 0x100007)
[11379.933540] pci 0000:00:02.0: PME# disabled
[11379.933559] pci 0000:00:02.1: PME# disabled
[11379.933672] HDA Intel 0000:00:1b.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[11379.933687] HDA Intel 0000:00:1b.0: setting latency timer to 64
[11379.987627] uhci_hcd 0000:00:1d.0: PCI INT A -> GSI 23 (level, low) -> IRQ 23
[11379.987652] uhci_hcd 0000:00:1d.0: setting latency timer to 64
[11379.987691] usb usb2: root hub lost power or was reset
[11379.987796] uhci_hcd 0000:00:1d.1: PCI INT B -> GSI 19 (level, low) -> IRQ 19
[11379.987810] uhci_hcd 0000:00:1d.1: setting latency timer to 64
[11379.987841] usb usb3: root hub lost power or was reset
[11379.987919] uhci_hcd 0000:00:1d.2: PCI INT C -> GSI 18 (level, low) -> IRQ 18
[11379.987933] uhci_hcd 0000:00:1d.2: setting latency timer to 64
[11379.987963] usb usb4: root hub lost power or was reset
[11379.988370] uhci_hcd 0000:00:1d.3: PCI INT D -> GSI 16 (level, low) -> IRQ 16
[11379.988385] uhci_hcd 0000:00:1d.3: setting latency timer to 64
[11379.988415] usb usb5: root hub lost power or was reset
[11379.988523] ehci_hcd 0000:00:1d.7: PME# disabled
[11379.988534] ehci_hcd 0000:00:1d.7: PCI INT A -> GSI 23 (level, low) -> IRQ 23
[11379.988549] ehci_hcd 0000:00:1d.7: setting latency timer to 64
[11379.988564] ehci_hcd 0000:00:1d.7: PME# disabled
[11379.988610] pci 0000:00:1e.0: setting latency timer to 64
[11379.988704] ata_piix 0000:00:1f.2: PCI INT B -> GSI 19 (level, low) -> IRQ 19
[11379.988715] ata_piix 0000:00:1f.2: setting latency timer to 64
[11380.023822] ACPI Error (dsopcode-0505): Attempt to CreateField of length zero [20090320]
[11380.023855] ACPI Error (psparse-0537): Method parse/execution failed [\_SB_.PCI0.IDE0.RATA] (Node f7039b40), AE_AML_OPERAND_VALUE
[11380.023977] ACPI Error (psparse-0537): Method parse/execution failed [\_SB_.PCI0.IDE0.CHN1.DRV0._GTF] (Node f7039700), AE_AML_OPERAND_VALUE
[11380.024432] ata2.00: _GTF evaluation failed (AE 0x3004)
[11380.025644] atl2 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[11380.025657] atl2 0000:03:00.0: setting latency timer to 64
[11380.025673] atl2 0000:03:00.0: PME# disabled
[11380.025684] atl2 0000:03:00.0: PME# disabled
[11380.027223] ath5k 0000:01:00.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18
[11380.027840] pci 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[11380.027854] pci 0000:00:02.0: setting latency timer to 64
[11380.601301] ata2.01: ACPI cmd ef/03:44:00:00:00:b0 filtered out
[11380.601310] ata2.01: ACPI cmd ef/03:0c:00:00:00:b0 filtered out
[11380.607318] ata2.00: configured for UDMA/66
[11380.610458] ata2.01: configured for UDMA/66
[11381.837983] sd 1:0:0:0: [sda] Starting disk
[11381.839276] sd 1:0:1:0: [sdb] Starting disk
[11381.942226] usb 1-5: reset high speed USB device using ehci_hcd and address 2
[11382.059426] PM: resume devices took 9.960 seconds
[11382.059430] ------------[ cut here ]------------
[11382.059444] WARNING: at kernel/power/main.c:176 suspend_test_finish+0x88/0x90()
[11382.059449] Hardware name: 900
[11382.059453] Component: resume devices
[11382.059462] Pid: 5562, comm: pm-suspend Tainted: G        W  2.6.30-rc6-00026-g0f6f49a-dirty #141
[11382.059468] Call Trace:
[11382.059477]  [<c0152de8>] ? suspend_test_finish+0x88/0x90
[11382.059485]  [<c0152de8>] ? suspend_test_finish+0x88/0x90
[11382.059496]  [<c01286bc>] warn_slowpath_common+0x7c/0xa0
[11382.059503]  [<c0152de8>] ? suspend_test_finish+0x88/0x90
[11382.059512]  [<c012872b>] warn_slowpath_fmt+0x2b/0x30
[11382.059520]  [<c0152de8>] suspend_test_finish+0x88/0x90
[11382.059528]  [<c0152e9f>] suspend_devices_and_enter+0x8f/0x1b0
[11382.059536]  [<c0153151>] enter_state+0x121/0x180
[11382.059543]  [<c015324f>] state_store+0x9f/0xe0
[11382.059550]  [<c01531b0>] ? state_store+0x0/0xe0
[11382.059560]  [<c023c934>] kobj_attr_store+0x24/0x30
[11382.059570]  [<c01d67ee>] sysfs_write_file+0xbe/0x110
[11382.059579]  [<c0195b4a>] vfs_write+0x9a/0x120
[11382.059587]  [<c01d6730>] ? sysfs_write_file+0x0/0x110
[11382.059594]  [<c0195c92>] sys_write+0x42/0x70
[11382.059602]  [<c0102e18>] sysenter_do_call+0x12/0x36
[11382.059608] ---[ end trace 0bba3f59e299cf86 ]---
[11382.059706] PM: Finishing wakeup.
[11382.059710] Restarting tasks ... done.
[11389.349481] atl2 0000:03:00.0: irq 27 for MSI/MSI-X
[11403.488569] wlan0: authenticate with AP 00:01:38:d6:0b:4f
[11403.490743] wlan0: authenticated
[11403.490751] wlan0: associate with AP 00:01:38:d6:0b:4f
[11403.493884] wlan0: RX AssocResp from 00:01:38:d6:0b:4f (capab=0x431 status=0 aid=6)
[11403.493892] wlan0: associated
[13209.741573] ath5k phy0: noise floor calibration timeout (2417MHz)
[14978.093981] =============================================================================
[14978.093994] BUG kmalloc-4096: Poison overwritten
[14978.093999] -----------------------------------------------------------------------------
[14978.094003] 
[14978.094009] INFO: 0xd6495110-0xd6495187. First byte 0x80 instead of 0x6b
[14978.094026] INFO: Allocated in dev_alloc_skb+0x21/0x40 age=2048 cpu=0 pid=0
[14978.094037] INFO: Freed in skb_release_data+0x5e/0x90 age=69 cpu=0 pid=0
[14978.094045] INFO: Slab 0xc12c9200 objects=7 used=2 fp=0xd64950f0 flags=0x400040c3
[14978.094052] INFO: Object 0xd64950f0 @offset=20720 fp=0xd6493090
[14978.094054] 
[14978.094059] Bytes b4 0xd64950e0:  0c 11 00 00 3b f7 df 00 5a 5a 5a 5a 5a 5a 5a 5a ....;֧.ZZZZZZZZ
[14978.094094]   Object 0xd64950f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094126]   Object 0xd6495100:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094159]   Object 0xd6495110:  80 00 00 00 ff ff ff ff ff ff 00 01 38 d6 0b 4f ....ÿÿÿÿÿÿ..8Ö.O
[14978.094192]   Object 0xd6495120:  00 01 38 d6 0b 4f 60 85 e0 01 19 b1 08 00 00 00 ..8Ö.O`.à..±....
[14978.094224]   Object 0xd6495130:  64 00 31 04 00 04 57 69 66 69 01 08 82 84 8b 96 d.1...Wifi......
[14978.094257]   Object 0xd6495140:  8c 12 98 24 03 01 01 07 0a 47 42 20 01 0d 14 01 ...$.....GB.....
[14978.094289]   Object 0xd6495150:  0d 14 00 2a 01 00 32 04 b0 48 60 6c 30 18 01 00 ...*..2.°H`l0...
[14978.094322]   Object 0xd6495160:  00 0f ac 02 02 00 00 0f ac 02 00 0f ac 04 01 00 ..¬.....¬...¬...
[14978.094354]   Object 0xd6495170:  00 0f ac 02 05 00 dd 05 00 10 91 04 00 05 04 00 ..¬...Ý.........
[14978.094386]   Object 0xd6495180:  01 00 00 8b 11 d1 77 77 6b 6b 6b 6b 6b 6b 6b 6b .....Ñwwkkkkkkkk
[14978.094419]   Object 0xd6495190:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094451]   Object 0xd64951a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094484]   Object 0xd64951b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094517]   Object 0xd64951c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094549]   Object 0xd64951d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094582]   Object 0xd64951e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094614]   Object 0xd64951f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094647]   Object 0xd6495200:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094679]   Object 0xd6495210:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094712]   Object 0xd6495220:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094744]   Object 0xd6495230:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094777]   Object 0xd6495240:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094809]   Object 0xd6495250:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094842]   Object 0xd6495260:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094874]   Object 0xd6495270:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094907]   Object 0xd6495280:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495290:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd64952a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd64952b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd64952c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd64952d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd64952e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd64952f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495300:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495310:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495320:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495330:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495340:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495350:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495360:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495370:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495380:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495390:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd64953a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd64953b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd64953c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd64953d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd64953e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd64953f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495400:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495410:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495420:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495430:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495440:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495450:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495460:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495470:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495480:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495490:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd64954a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd64954b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd64954c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd64954d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd64954e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd64954f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495500:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495510:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495520:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495530:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495540:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495550:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495560:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495570:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495580:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495590:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd64955a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd64955b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
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[14978.094929]   Object 0xd6495e00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495e10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495e20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495e30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495e40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495e50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495e60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495e70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495e80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495e90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495ea0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495eb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495ec0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495ed0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495ee0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495ef0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495f00:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495f10:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495f20:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495f30:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495f40:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495f50:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495f60:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495f70:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495f80:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495f90:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495fa0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495fb0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495fc0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495fd0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495fe0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6495ff0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6496000:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6496010:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6496020:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6496030:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6496040:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6496050:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6496060:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6496070:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6496080:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd6496090:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd64960a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd64960b0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd64960c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd64960d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[14978.094929]   Object 0xd64960e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 kkkkkkkkkkkkkkk¥
[14978.094929]  Redzone 0xd64960f0:  bb bb bb bb                                     »»»»            
[14978.094929]  Padding 0xd6496118:  5a 5a 5a 5a 5a 5a 5a 5a                         ZZZZZZZZ        
[14978.094929] Pid: 0, comm: swapper Tainted: G        W  2.6.30-rc6-00026-g0f6f49a-dirty #141
[14978.094929] Call Trace:
[14978.094929]  [<c018edc4>] print_trailer+0xb4/0xf0
[14978.094929]  [<c018eea7>] check_bytes_and_report+0xa7/0xd0
[14978.094929]  [<c018ff6e>] check_object+0x1ae/0x1f0
[14978.094929]  [<c0190bff>] __slab_alloc+0x46f/0x510
[14978.094929]  [<c0190e69>] ? kmem_cache_alloc+0xc9/0x150
[14978.094929]  [<c0191cd9>] __kmalloc_track_caller+0x1c9/0x1e0
[14978.094929]  [<c03aa391>] ? dev_alloc_skb+0x21/0x40
[14978.094929]  [<c03a9d0e>] ? __alloc_skb+0x2e/0x120
[14978.094929]  [<c03aa391>] ? dev_alloc_skb+0x21/0x40
[14978.094929]  [<c03a9d34>] __alloc_skb+0x54/0x120
[14978.094929]  [<c03aa391>] dev_alloc_skb+0x21/0x40
[14978.094929]  [<c0328b78>] ath5k_rx_skb_alloc+0x28/0x1b0
[14978.094929]  [<c043575e>] ? _spin_lock+0x3e/0x50
[14978.094929]  [<c0328f34>] ath5k_tasklet_rx+0x134/0x710
[14978.094929]  [<c014dc89>] ? __lock_acquire+0x339/0x5e0
[14978.094929]  [<c012d624>] tasklet_action+0x44/0x90
[14978.094929]  [<c012d105>] __do_softirq+0x75/0x1a0
[14978.094929]  [<c0435672>] ? _spin_unlock+0x22/0x30
[14978.094929]  [<c012d285>] do_softirq+0x55/0x60
[14978.094929]  [<c012d56c>] irq_exit+0x6c/0x80
[14978.094929]  [<c0104dc7>] do_IRQ+0x47/0x90
[14978.094929]  [<c0142feb>] ? getnstimeofday+0x5b/0x120
[14978.094929]  [<c01034ae>] common_interrupt+0x2e/0x34
[14978.094929]  [<c014007b>] ? hrtimer_nanosleep+0x1b/0x110
[14978.094929]  [<c028fff1>] ? acpi_idle_enter_bm+0x1d4/0x1fd
[14978.094929]  [<c03757cc>] cpuidle_idle_call+0x6c/0xc0
[14978.094929]  [<c05b2500>] ? unknown_bootoption+0x0/0x210
[14978.094929]  [<c0101d61>] cpu_idle+0x41/0x60
[14978.094929]  [<c0429bf5>] rest_init+0x55/0x60
[14978.094929]  [<c05b2b4a>] start_kernel+0x26a/0x300
[14978.094929]  [<c05b2500>] ? unknown_bootoption+0x0/0x210
[14978.094929]  [<c05b2395>] ? reserve_ebda_region+0x55/0x70
[14978.094929]  [<c05b2302>] i386_start_kernel+0x52/0x90
[14978.094929] FIX kmalloc-4096: Restoring 0xd6495110-0xd6495187=0x6b
[14978.094929] 
[14978.094929] FIX kmalloc-4096: Marking all objects used
[16525.355132] pidgin[7026]: segfault at e ip b778379b sp a542c220 error 4 in libc-2.7.so[b7718000+149000]

I'm pretty certain this kernel had your previous patch (although the
directory that held the kernel has since been cleaned away on the server
on which it was compiled).

-- 
Sitsofe | http://sucs.org/~sits/

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-05-26 21:10                                                                 ` Sitsofe Wheeler
@ 2009-06-28 20:23                                                                   ` Sitsofe Wheeler
  2009-07-14  2:24                                                                     ` Bob Copeland
  0 siblings, 1 reply; 66+ messages in thread
From: Sitsofe Wheeler @ 2009-06-28 20:23 UTC (permalink / raw)
  To: Bob Copeland
  Cc: Jiri Slaby, Nick Kossifidis, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Tue, May 26, 2009 at 10:10:30PM +0100, Sitsofe Wheeler wrote:
> On Fri, May 22, 2009 at 10:39:31AM +0100, Sitsofe Wheeler wrote:
> > On Mon, May 18, 2009 at 11:05:40AM +0100, Sitsofe Wheeler wrote:
> > > On Fri, May 15, 2009 at 12:09:04AM -0400, Bob Copeland wrote:
> > > > 
> > > > This is too ugly to live, but I'd like to know if you can reproduce
> > > > with this patch.  If it still happens, then I guess it's back to
> > 
> > The poison message has not reappeared but this morning there was a
> 
> Yet again, I spoke too soon. This evening the following was in dmesg:
> 
> I'm pretty certain this kernel had your previous patch (although the
> directory that held the kernel has since been cleaned away on the server
> on which it was compiled).

OK I'm still trying to follow this. I forwarded your patch to 2.6.31-rc1
but this time I have kmemleak enabled. I left it streaming radio for the
past few hours and the following appeared in the logs:

Jun 28 17:01:34 eeepc kernel: [  744.083787] kmemleak: unreferenced object 0xf5845770 (size 64):
Jun 28 17:01:34 eeepc kernel: [  744.083795] kmemleak:   comm "swapper", pid 1, jiffies 4294673468
Jun 28 17:01:34 eeepc kernel: [  744.083799] kmemleak:   backtrace:
Jun 28 17:01:34 eeepc kernel: [  744.083811] kmemleak:     [<c01a749d>] kmemleak_alloc+0x11d/0x2a0
Jun 28 17:01:34 eeepc kernel: [  744.083818] kmemleak:     [<c01a4376>] __kmalloc+0x136/0x210
Jun 28 17:01:34 eeepc kernel: [  744.083828] kmemleak:     [<c043f923>] ieee80211_register_hw+0x83/0x4b0
Jun 28 17:01:34 eeepc kernel: [  744.083837] kmemleak:     [<c04630d5>] ath5k_pci_probe+0xee5/0x1100
Jun 28 17:01:34 eeepc kernel: [  744.083849] kmemleak:     [<c0279ab3>] local_pci_probe+0x13/0x20
Jun 28 17:01:34 eeepc kernel: [  744.083856] kmemleak:     [<c027a608>] pci_device_probe+0x68/0x90
Jun 28 17:01:34 eeepc kernel: [  744.083864] kmemleak:     [<c0312670>] driver_probe_device+0x70/0x140
Jun 28 17:01:34 eeepc kernel: [  744.083872] kmemleak:     [<c031293a>] __driver_attach+0x7a/0x80
Jun 28 17:01:34 eeepc kernel: [  744.083881] kmemleak:     [<c0311af9>] bus_for_each_dev+0x49/0x70
Jun 28 17:01:34 eeepc kernel: [  744.083888] kmemleak:     [<c031250e>] driver_attach+0x1e/0x20
Jun 28 17:01:34 eeepc kernel: [  744.083896] kmemleak:     [<c0312188>] bus_add_driver+0xd8/0x290
Jun 28 17:01:34 eeepc kernel: [  744.083904] kmemleak:     [<c0312a6f>] driver_register+0x5f/0x120
Jun 28 17:01:34 eeepc kernel: [  744.083911] kmemleak:     [<c027a443>] __pci_register_driver+0x53/0xc0
Jun 28 17:01:34 eeepc kernel: [  744.083922] kmemleak:     [<c061d82d>] init_ath5k_pci+0x1d/0x40
Jun 28 17:01:34 eeepc kernel: [  744.083929] kmemleak:     [<c0101122>] do_one_initcall+0x32/0x1d0
Jun 28 17:01:34 eeepc kernel: [  744.083939] kmemleak:     [<c05fe8aa>] kernel_init+0xba/0x110
Jun 28 17:01:34 eeepc kernel: [  744.084074] kmemleak: unreferenced object 0xf5845b60 (size 64):
Jun 28 17:01:34 eeepc kernel: [  744.084080] kmemleak:   comm "swapper", pid 1, jiffies 4294683694
Jun 28 17:01:34 eeepc kernel: [  744.084085] kmemleak:   backtrace:
Jun 28 17:01:34 eeepc kernel: [  744.084093] kmemleak:     [<c01a749d>] kmemleak_alloc+0x11d/0x2a0
Jun 28 17:01:34 eeepc kernel: [  744.084100] kmemleak:     [<c01a4376>] __kmalloc+0x136/0x210
Jun 28 17:01:34 eeepc kernel: [  744.084111] kmemleak:     [<c0239880>] __crypto_alloc_tfm+0x40/0x170
Jun 28 17:01:34 eeepc kernel: [  744.084120] kmemleak:     [<c0239cbc>] crypto_alloc_base+0x3c/0x80
Jun 28 17:01:34 eeepc kernel: [  744.084128] kmemleak:     [<c04420ff>] ieee80211_wep_init+0x2f/0x80
Jun 28 17:01:34 eeepc kernel: [  744.084136] kmemleak:     [<c043fa9d>] ieee80211_register_hw+0x1fd/0x4b0
Jun 28 17:01:34 eeepc kernel: [  744.084144] kmemleak:     [<c04630d5>] ath5k_pci_probe+0xee5/0x1100
Jun 28 17:01:34 eeepc kernel: [  744.084153] kmemleak:     [<c0279ab3>] local_pci_probe+0x13/0x20
Jun 28 17:01:34 eeepc kernel: [  744.084160] kmemleak:     [<c027a608>] pci_device_probe+0x68/0x90
Jun 28 17:01:34 eeepc kernel: [  744.084168] kmemleak:     [<c0312670>] driver_probe_device+0x70/0x140
Jun 28 17:01:34 eeepc kernel: [  744.084175] kmemleak:     [<c031293a>] __driver_attach+0x7a/0x80
Jun 28 17:01:34 eeepc kernel: [  744.084184] kmemleak:     [<c0311af9>] bus_for_each_dev+0x49/0x70
Jun 28 17:01:34 eeepc kernel: [  744.084191] kmemleak:     [<c031250e>] driver_attach+0x1e/0x20
Jun 28 17:01:34 eeepc kernel: [  744.084199] kmemleak:     [<c0312188>] bus_add_driver+0xd8/0x290
Jun 28 17:01:34 eeepc kernel: [  744.084207] kmemleak:     [<c0312a6f>] driver_register+0x5f/0x120
Jun 28 17:01:34 eeepc kernel: [  744.084214] kmemleak:     [<c027a443>] __pci_register_driver+0x53/0xc0

There were quite a few leaks before this. I dunno if kmemleak is
spurious or not. As always, any ideas?

-- 
Sitsofe | http://sucs.org/~sits/

^ permalink raw reply	[flat|nested] 66+ messages in thread

* Re: [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc)
  2009-06-28 20:23                                                                   ` Sitsofe Wheeler
@ 2009-07-14  2:24                                                                     ` Bob Copeland
  0 siblings, 0 replies; 66+ messages in thread
From: Bob Copeland @ 2009-07-14  2:24 UTC (permalink / raw)
  To: Sitsofe Wheeler
  Cc: Jiri Slaby, Nick Kossifidis, Frederic Weisbecker, linux-kernel,
	linux-wireless, ath5k-devel, Luis R. Rodriguez

On Sun, Jun 28, 2009 at 09:23:29PM +0100, Sitsofe Wheeler wrote:
> OK I'm still trying to follow this. I forwarded your patch to 2.6.31-rc1
> but this time I have kmemleak enabled. I left it streaming radio for the
> past few hours and the following appeared in the logs:
> 
> Jun 28 17:01:34 eeepc kernel: [  744.083787] kmemleak: unreferenced object 0xf5845770 (size 64):
> Jun 28 17:01:34 eeepc kernel: [  744.083795] kmemleak:   comm "swapper", pid 1, jiffies 4294673468
> Jun 28 17:01:34 eeepc kernel: [  744.083799] kmemleak:   backtrace:
> Jun 28 17:01:34 eeepc kernel: [  744.083811] kmemleak:     [<c01a749d>] kmemleak_alloc+0x11d/0x2a0
> Jun 28 17:01:34 eeepc kernel: [  744.083818] kmemleak:     [<c01a4376>] __kmalloc+0x136/0x210
> Jun 28 17:01:34 eeepc kernel: [  744.083828] kmemleak:     [<c043f923>] ieee80211_register_hw+0x83/0x4b0
[snip]


> There were quite a few leaks before this. I dunno if kmemleak is
> spurious or not. As always, any ideas?

I can't seem to boot a kmemleak kernel myself.  But there were a number
of fixes to kmemleak recently to track memory allocated in
ieee80211_register_hw, IIRC -- so it would be good to know if this
persists with all the latest fixes.

As always, no ideas :(  I'm guessing nothing in .31-rc has magically
fixed any problems?  I still say it's some kind of race condition
made worse by the eeepc performance, but unless I can find one or
replicate it with introduced load, I'm afraid I'm stumped.  

(Well, I guess we can always go off and rewrite the rx loop without
the circular terminator and see how well that works on your HW.)

-- 
Bob Copeland %% www.bobcopeland.com


^ permalink raw reply	[flat|nested] 66+ messages in thread

end of thread, other threads:[~2009-07-14  2:25 UTC | newest]

Thread overview: 66+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2009-02-22 11:18 [TIP] BUG kmalloc-4096: Poison overwritten (ath5k_rx_skb_alloc) Sitsofe Wheeler
2009-02-22 12:01 ` Jiri Slaby
2009-02-22 12:20   ` Sitsofe Wheeler
2009-02-22 12:47     ` Jiri Slaby
2009-02-22 14:47     ` Frederic Weisbecker
2009-02-22 17:02       ` Sitsofe Wheeler
2009-02-22 17:10         ` Frederic Weisbecker
2009-02-22 19:27           ` Jiri Slaby
2009-02-22 19:42             ` Frederic Weisbecker
2009-02-22 20:18               ` Sitsofe Wheeler
2009-02-22 20:27                 ` Jiri Slaby
2009-02-22 20:30                 ` Frederic Weisbecker
2009-02-22 21:56         ` Jiri Slaby
2009-02-22 22:21           ` Sitsofe Wheeler
2009-02-22 23:20           ` Jiri Slaby
2009-02-23 15:35             ` Bob Copeland
2009-02-23 16:03               ` Nick Kossifidis
2009-02-23 16:15                 ` Nick Kossifidis
2009-02-23 16:21                   ` Bob Copeland
2009-02-23 16:27                     ` Nick Kossifidis
2009-02-23 16:30                       ` Bob Copeland
2009-02-23 16:41                         ` Nick Kossifidis
2009-02-23 16:44                           ` Bob Copeland
2009-02-23 16:16                 ` pat-lkml
2009-02-23 16:20                   ` Nick Kossifidis
2009-02-23 22:22               ` Jiri Slaby
2009-02-23 22:43                 ` Jiri Slaby
2009-02-23 23:08                   ` Nick Kossifidis
2009-02-24 13:58                     ` Bob Copeland
2009-02-24 21:47                       ` Jiri Slaby
2009-02-25 14:01                         ` Sitsofe Wheeler
2009-02-26  1:06                           ` Bob Copeland
2009-02-26 20:53                             ` Jiri Slaby
2009-02-26 21:05                               ` Bob Copeland
2009-02-26 13:59                           ` Bob Copeland
2009-02-26 17:03                             ` Sitsofe Wheeler
2009-03-02 17:34                               ` [ath5k-devel] " Bob Copeland
2009-03-03  4:12                               ` Bob Copeland
2009-03-03 20:03                                 ` Sitsofe Wheeler
2009-03-04 12:07                                   ` Bob Copeland
2009-03-06  9:42                                     ` Sitsofe Wheeler
2009-03-07  4:47                                       ` Bob Copeland
2009-03-07  8:04                                         ` Sitsofe Wheeler
2009-03-07 13:34                                           ` Bob Copeland
2009-03-08  3:09                                       ` Bob Copeland
2009-03-08  9:28                                         ` Jiri Slaby
2009-03-08 16:10                                           ` Bob Copeland
2009-03-10  0:43                                           ` Bob Copeland
2009-03-10  8:19                                             ` Sitsofe Wheeler
2009-03-12  6:10                                             ` Sitsofe Wheeler
2009-03-13  9:52                                               ` Sitsofe Wheeler
2009-03-13 12:28                                                 ` Bob Copeland
2009-03-20 13:14                                                 ` Bob Copeland
2009-03-29 14:24                                                   ` Sitsofe Wheeler
2009-03-29 15:14                                                     ` Bob Copeland
2009-03-31  8:30                                                       ` Sitsofe Wheeler
2009-05-13 21:44                                                         ` Sitsofe Wheeler
2009-05-15  4:09                                                           ` Bob Copeland
2009-05-18 10:05                                                             ` Sitsofe Wheeler
2009-05-22  9:39                                                               ` Sitsofe Wheeler
2009-05-22 12:06                                                                 ` Bob Copeland
2009-05-26 21:10                                                                 ` Sitsofe Wheeler
2009-06-28 20:23                                                                   ` Sitsofe Wheeler
2009-07-14  2:24                                                                     ` Bob Copeland
2009-02-26  1:11                         ` Bob Copeland
2009-02-22 20:17       ` Bob Copeland

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