Re: XFS or Kernel Problem / Bug

[Stefan Priebe - FH <studium@profihost.com>]

Hi!

Mhm are you shure? I mean i have this problem on 5 servers - all with 
the same mainboard. I cannot believe, that all 5 servers have a hardware 
problem that starts on the same day.

The other thing is - that they all work fine with 2.6.16.x and all other 
kernels before. I mean some of them were used with 2.6.x since two years 
without any problem...

Stefan


Chuck Ebbert schrieb:
> Stefan Priebe - FH wrote:
>
> > Sorry that is not possible - cause it is a production machine.
> >
> > But i've catched the error and the files from another machine -
> > perhaps this helps.
> >
> > "BUG: unable to handle kernel NULL pointer dereference at virtual
> > address 00000288"
> > " printing eip:"
> > "c0142ff7"
> > "*pde = 00000000"
> > "Oops: 0000 [#1]"
> > "SMP "
> > "Modules linked in: iptable_filter ip_tables x_tables"
> > "CPU:    0"
> > "EIP:    0060:[<c0142ff7>]    Not tainted VLI"
> > "EFLAGS: 00010246   (2.6.18.6 #1) "
> > "EIP is at generic_file_buffered_write+0x390/0x6cf"
> > "eax: 00000000   ebx: 000001ec   ecx: ea029a40   edx: 00008002"
> > "esi: 00000000   edi: e3b28c9c   ebp: 000001ec   esp: dd04bd18"
> > "ds: 007b   es: 007b   ss: 0068"
> > "Process proftpd (pid: 3615, ti=dd04a000 task=eba88a70 task.ti=dd04a000)"
> > "Stack: e3b28d44 00000001 00000010 000001fc c036d793 000001fc c14765c0
> > 00000010 "
> > "       080d404c 000001ec e3b28c9c c03e78c0 e3b28d44 ea029a40 000001fc
> > 00000000 "
> > "       00000000 000001ec dd04beac 00d420b1 00000000 00000000 dd04bd80
> > 45b1fa67 "
> > "Call Trace:"
> > " [<c036d793>] sock_def_readable+0x7f/0x81"
> > " [<c017a03a>] file_update_time+0xad/0xcb"
> > " [<c0232015>] xfs_iunlock+0x55/0x9f"
> > " [<c0262eeb>] xfs_write+0xa74/0xc61"
> > " [<c036a253>] sock_aio_read+0x95/0x99"
> > " [<c025d9fb>] xfs_file_aio_write+0x8f/0xa0"
> > " [<c015fb94>] do_sync_write+0xc9/0x10f"
> > " [<c0133ad6>] autoremove_wake_function+0x0/0x57"
> > " [<c015f3d5>] generic_file_llseek+0x95/0xbc"
> > " [<c015facb>] do_sync_write+0x0/0x10f"
> > " [<c015fc80>] vfs_write+0xa6/0x179"
> > " [<c015fe24>] sys_write+0x51/0x80"
> > " [<c0102d3f>] syscall_call+0x7/0xb"
> > "Code: 04 89 10 8b 44 24 40 85 c0 0f 85 db 00 00 00 8b 5c 24 24 85 db
> > 0f 88 c3 00 00 00 8b 4c 24 34 8b 51 18 f6 c6 10 75 73 8b 7c 24 28 <8b>
> > 85 9c 00 00 00 f6 40 30 10 75 63 f6 87 48 01 00 00 01 75 5a "
> > "EIP: [<c0142ff7>] generic_file_buffered_write+0x390/0x6cf SS:ESP
> > 0068:dd04bd18"
> >
> > Files:
> > http://server113-han.de-nserver.de/filemap.s
> > http://server113-han.de-nserver.de/filemap.o
>
> You seem to have some kind of hardware/memory problem.
>
> Disassembly of the failing instruction from the oops:
>
>      8b 7c 24 28               mov    0x28(%esp),%edi
>      8b 85 9c 00 00 00         mov    0x9c(%ebp),%eax   <=====
>
> Dump of the object code:
>
>            8b 7c 24 28             mov    0x28(%esp),%edi
>            8b 87 9c 00 00 00       mov    0x9c(%edi),%eax
>
> Looks like a bit is flipped.

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