From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1422716AbXBGTpY (ORCPT ); Wed, 7 Feb 2007 14:45:24 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1422720AbXBGTpY (ORCPT ); Wed, 7 Feb 2007 14:45:24 -0500 Received: from mail.gmx.net ([213.165.64.20]:36011 "HELO mail.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1422716AbXBGTpX (ORCPT ); Wed, 7 Feb 2007 14:45:23 -0500 X-Provags-ID: V01U2FsdGVkX18Ny74DJPkNmxEM60iduhSvLFFL53HSPJRUedgXwS iv/g== From: Frank Hartmann To: Jan Kara Cc: linux-kernel@vger.kernel.org Subject: Re: PROBLEM: 2.6.19.1 Oops while doing Disk IO + playing sound In-Reply-To: <20070207091841.GE24590@atrey.karlin.mff.cuni.cz> (Jan Kara's message of "Wed, 7 Feb 2007 10:18:41 +0100") References: <877ivr6t0k.fsf@fantasio.hh.de> <20070207091841.GE24590@atrey.karlin.mff.cuni.cz> Date: Wed, 07 Feb 2007 20:45:26 +0100 Message-ID: <87wt2thhux.fsf@fantasio.hh.de> User-Agent: Gnus/5.110006 (No Gnus v0.6) Emacs/22.0.93 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Y-GMX-Trusted: 0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Jan Kara writes: > Hi, > > Has this bug got fixed? Are you still able to reproduce the problem with 2.6.20? Hi Jan, you are the first to react on my message. I did not try 2.6.20 uptonow. What I did in the meantime: Switched to 2.6.19.2 I run extensivly memtest+ and started something called smrtctl which should give more information on my harddisk status. Everything looks ok. >>From what I read on linux-kernel I came to the conclusion, that it might be benifical not using PREMPT. So I changed kernel configuration. Yesterday I had: Feb 6 22:35:44 fantasio kernel: BUG: unable to handle kernel NULL pointer dereference at virtual address 00000029 Feb 6 22:35:44 fantasio kernel: printing eip: Feb 6 22:35:44 fantasio kernel: e0c3b737 Feb 6 22:35:44 fantasio kernel: *pde = 00000000 Feb 6 22:35:44 fantasio kernel: Oops: 0000 [#1] Feb 6 22:35:44 fantasio kernel: Modules linked in: ext2 cbc blkcipher binfmt_misc bnep rfcomm l2cap nfs nfsd exportfs lockd sunrpc ip_nat_irc ip_nat_ftp ip_conntrack_irc ip_conntrack_ftp xt_state ipt_REJECT i pt_LOG iptable_mangle iptable_filter iptable_nat ip_nat ip_tables ip_conntrack bridge llc cryptoloop loop sha256 aes it87 hwmon_vid i2c_isa i2c_core md5 ipv6 af_packet radeon drm dm_crypt dm_mod snd_via82xx sn d_ac97_codec snd_ac97_bus snd_pcm_oss snd_mixer_oss analog 8250_pnp 8250 serial_core snd_pcm snd_timer snd_page_alloc snd_mpu401_uart gameport snd_rawmidi rtc snd soundcore prism54 via_agp agpgart firmware_cla ss evdev sd_mod ext3 jbd mbcache raid1 raid0 multipath linear md_mod ide_cd cdrom ide_disk usbhid usb_storage via_rhine mii via82cxxx ide_core ehci_hcd sym53c8xx scsi_transport_spi uhci_hcd usbcore scsi_mod un ix Feb 6 22:35:44 fantasio kernel: CPU: 0 Feb 6 22:35:44 fantasio kernel: EIP: 0060:[pg0+546215735/1070253056] Not tainted VLI Feb 6 22:35:44 fantasio kernel: EFLAGS: 00010213 (2.6.19.2 #1) Feb 6 22:35:44 fantasio kernel: EIP is at journal_grab_journal_head+0x2/0x14 [jbd] Feb 6 22:35:44 fantasio kernel: eax: 00000029 ebx: 00000029 ecx: 00000029 edx: 00000000 Feb 6 22:35:44 fantasio kernel: esi: c10d2580 edi: 00000000 ebp: c1feb6ec esp: df9fde00 Feb 6 22:35:44 fantasio kernel: ds: 007b es: 007b ss: 0068 Feb 6 22:35:44 fantasio kernel: Process kswapd0 (pid: 132, ti=df9fc000 task=dffca590 task.ti=df9fc000) Feb 6 22:35:44 fantasio kernel: Stack: e0c375ca 00000246 c1feb720 c24c532c c1186ac0 00000001 e0c6930d 000000d0 Feb 6 22:35:44 fantasio kernel: 00000001 c02aed00 c012f883 c10d2580 c24c532c c01344b1 df9fdf1c c0117e5d Feb 6 22:35:44 fantasio kernel: df9fdf80 00000020 00000000 00000000 00000020 00000001 00000001 00000000 Feb 6 22:35:44 fantasio kernel: Call Trace: Feb 6 22:35:44 fantasio kernel: [pg0+546198986/1070253056] journal_try_to_free_buffers+0x5e/0xf9 [jbd] Feb 6 22:35:44 fantasio kernel: [pg0+546403085/1070253056] ext3_releasepage+0x0/0x72 [ext3] Feb 6 22:35:44 fantasio kernel: [try_to_release_page+52/70] try_to_release_page+0x34/0x46 Feb 6 22:35:44 fantasio kernel: [shrink_inactive_list+1096/1677] shrink_inactive_list+0x448/0x68d Feb 6 22:35:44 fantasio kernel: [tasklet_action+55/87] tasklet_action+0x37/0x57 Feb 6 22:35:44 fantasio kernel: [__pagevec_release+21/29] __pagevec_release+0x15/0x1d Feb 6 22:35:45 fantasio kernel: [shrink_active_list+726/734] shrink_active_list+0x2d6/0x2de Feb 6 22:35:45 fantasio kernel: [shrink_zone+180/213] shrink_zone+0xb4/0xd5 Feb 6 22:35:45 fantasio kernel: [kswapd+623/886] kswapd+0x26f/0x376 Feb 6 22:35:45 fantasio kernel: [autoremove_wake_function+0/53] autoremove_wake_function+0x0/0x35 Feb 6 22:35:45 fantasio kernel: [kswapd+0/886] kswapd+0x0/0x376 Feb 6 22:35:45 fantasio kernel: [kthread+173/216] kthread+0xad/0xd8 Feb 6 22:35:45 fantasio kernel: [kthread+0/216] kthread+0x0/0xd8 Feb 6 22:35:45 fantasio kernel: [kernel_thread_helper+7/16] kernel_thread_helper+0x7/0x10 Feb 6 22:35:45 fantasio kernel: ======================= It happened probably while I was running 408 dd if=/dev/urandom of=crypt.img bs=1M count=20000 The file seems to be more or less complete and the process modified the file later: ls -l crypt.img -rw-r--r-- 1 frank frank 20970175708 Feb 6 22:46 crypt.img So i do not know if it is related. Today I had three complete system freezes(keyboard dead,mouse dead, no magic sysreq), but no Oops while doing: losetup /dev/loop1 /home/frank/tmp/crypt.img cryptsetup -y create mycryprt /dev/loop1 mkfs.ext3 /dev/mapper/mycryprt <-- FREEZE at 'writing superblocks' I will start using 2.6.20 soon. many thanks Frank