Hi,
One of my server crashes randomly.
I suspect a filesystem corruption.
Can you please confirm this ?
Thanks
Here is the relevant part from /var/log/syslog
Aug 23 12:10:55 berlin kernel: BUG: unable to handle kernel paging
request at virtual address 74c1803d
Aug 23 12:10:55 berlin kernel: printing eip:
Aug 23 12:10:55 berlin kernel: c014fd25
Aug 23 12:10:55 berlin kernel: *pde = 00000000
Aug 23 12:10:55 berlin kernel: Oops: 0002 [#1]
Aug 23 12:10:55 berlin kernel: SMP
Aug 23 12:10:55 berlin kernel: Modules linked in: xt_helper xt_state
iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack camellia xcbc
dm_mirror hisax
Aug 23 12:10:55 berlin kernel: CPU: 1
Aug 23 12:10:55 berlin kernel: EIP: 0060:[<c014fd25>] Not tainted VLI
Aug 23 12:10:55 berlin kernel: EFLAGS: 00010082 (2.6.22-berlin #1)
Aug 23 12:10:55 berlin kernel: EIP is at free_block+0x61/0xfb
Aug 23 12:10:55 berlin kernel: eax: df2c0000 ebx: 00000024 ecx:
d64ae080 edx: 74c18039
Aug 23 12:10:55 berlin kernel: esi: d64ae000 edi: dfe4b880 ebp:
dfe48840 esp: dff9df40
Aug 23 12:10:55 berlin kernel: ds: 007b es: 007b fs: 00d8 gs: 0000
ss: 0068
Aug 23 12:10:55 berlin kernel: Process events/1 (pid: 8, ti=dff9c000
task=dff8e540 task.ti=dff9c000)
Aug 23 12:10:55 berlin kernel: Stack: 00000009 00000000 0000000b
00000001 dfe35cd8 dfe35cd4 0000000b dfe35cc0
Aug 23 12:10:55 berlin kernel: dfe4b880 c014fe37 00000000 dfe48840
dfe4b880 dfe48840 c1413a60 00000000
Aug 23 12:10:55 berlin kernel: c0150b36 00000000 00000000 dffcd4c0
c1413a60 c0150aed c0127dd0 000000ff
Aug 23 12:10:55 berlin kernel: Call Trace:
Aug 23 12:10:55 berlin kernel: [<c014fe37>] drain_array+0x78/0x97
Aug 23 12:10:55 berlin kernel: [<c0150b36>] cache_reap+0x49/0xe5
Aug 23 12:10:55 berlin kernel: [<c0150aed>] cache_reap+0x0/0xe5
Aug 23 12:10:55 berlin kernel: [<c0127dd0>] run_workqueue+0x73/0xf5
Aug 23 12:10:55 berlin kernel: [<c01284f2>] worker_thread+0x0/0xc6
Aug 23 12:10:55 berlin kernel: [<c01285ac>] worker_thread+0xba/0xc6
Aug 23 12:10:55 berlin kernel: [<c012aaa1>]
autoremove_wake_function+0x0/0x35
Aug 23 12:10:55 berlin kernel: [<c012a9db>] kthread+0x38/0x5d
Aug 23 12:10:55 berlin kernel: [<c012a9a3>] kthread+0x0/0x5d
Aug 23 12:10:55 berlin kernel: [<c01030e7>] kernel_thread_helper+0x7/0x10
Aug 23 12:10:55 berlin kernel: =======================
Aug 23 12:10:55 berlin kernel: Code: 8b 02 25 00 40 02 00 3d 00 40 02 00
75 03 8b 52 0c 8b 02 84 c0 78 04 0f 0b eb fe 8b 72 1c 8b 54 24 28 8b 7c
95 68 8b 16 8b 46 04 <89>
42 04 89 10 c7 06 00 01 10 00 c7 46 04 00 02 20 00 2b 4e 0c
Aug 23 12:10:55 berlin kernel: EIP: [<c014fd25>] free_block+0x61/0xfb
SS:ESP 0068:dff9df40
Thanks
Laurent
On Thu, Aug 23, 2007 at 01:15:12PM +0200, Laurent CARON wrote:
> Hi,
>
> One of my server crashes randomly.
>
> I suspect a filesystem corruption.
What makes you think so? I'd check the memory with memtest.
Regards,
Frederik
Frederik Deweerdt wrote:
> On Thu, Aug 23, 2007 at 01:15:12PM +0200, Laurent CARON wrote:
>> Hi,
>>
>> One of my server crashes randomly.
>>
>> I suspect a filesystem corruption.
> What makes you think so? I'd check the memory with memtest.
I suspect the filesystem, because it happened to me on 2 other servers
in the past.
A reiserfs3 corruption occured, making the server crash with the same
kind of symptoms but that's only a guess).
Checking with memtest asap.
Thanks
Laurent