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* BUG: at fs/nfs/pagelist.c:339 nfs_scan_dirty()
@ 2007-02-12  1:37 Matthew Hodgson
  0 siblings, 0 replies; only message in thread
From: Matthew Hodgson @ 2007-02-12  1:37 UTC (permalink / raw)
  To: linux-kernel


I just upgraded from to 2.6.20 on a Pentium M, and on booting 
off an NFS root encountered the following bug somewhere after loading 
the w83627hf module and before ohci1394:

BUG: at fs/nfs/pagelist.c:339 nfs_scan_dirty()
  [<c01da1b6>] nfs_scan_dirty+0x168/0x17d
  [<c01dd54a>] nfs_wait_on_requests_locked+0x9c/0xac
  [<c01dda9b>] nfs_sync_mapping_wait+0xad/0x256
  [<c01de35a>] nfs_sync_mapping_range+0x83/0x9e
  [<c01d8037>] nfs_getattr+0x37/0x98
  [<c01d8000>] nfs_getattr+0x0/0x98
  [<c014be19>] vfs_getattr+0x21/0x30
  [<c014c203>] vfs_stat_fd+0x2e/0x40
  [<c0224ec4>] __copy_to_user_ll+0xc9/0xd4
  [<c014c2a2>] sys_stat64+0xf/0x23
  [<c010f5bb>] do_page_fault+0x277/0x528
  [<c0149c61>] vfs_read+0xfa/0x134
  [<c010f344>] do_page_fault+0x0/0x528
  [<c0102c98>] syscall_call+0x7/0xb

So far the machine appears stable other than this - but after having had 
a year or so of perfect uptime on the box under with no such 
kernel errors, I thought you might like to know in case this indicates 
something more serious.

The kernel options given to boot off NFS were...

root=/dev/nfs rw 

...and the full dmesg, kernel config, lspci and lsmod output may be 
found at  The NFS server is 
running the default NFS v3 options on 2.6.20 on Core 2 Duo.  No patches 
have been applied to either kernel.

Any advice on whether I should be worried by this, whether it indicates 
that something significant is wrong, and how I might help debug it would 
be appreciated.



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2007-02-12  1:37 BUG: at fs/nfs/pagelist.c:339 nfs_scan_dirty() Matthew Hodgson

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