Kernel panic/exception

[Noam Rathaus]

Well looking back a few lines above I see:
Apr 23 04:03:46 sp kernel: memory.c:100: bad pmd 00000240.
Apr 23 04:03:46 sp kernel: memory.c:100: bad pmd 00000240.
Apr 23 05:00:00 sp mysqld: Starting MySQL:  succeeded
Apr 23 05:01:00 sp rpcscheduler: rpcd.pl startup succeeded
Apr 23 06:01:00 sp rpcscheduler: rpcd.pl startup succeeded
Apr 23 06:39:55 sp kernel: swap_dup: Bad swap file entry 13823064

Is it a physical memory issue?

Is it a swap file corruption => bad HD?


On Thu, Apr 23, 2009 at 2:18 PM, Yedidyah Bar-David
<linux-il at didi.bardavid.org> wrote:
> On Thu, Apr 23, 2009 at 01:59:19PM +0300, Noam Rathaus wrote:
>> Hi,
>>
>> I am seeing these in the logs and I can't find a documentation to what
>> might have been causing it:
>> Apr 23 13:57:47 sp kernel:  <1>Unable to handle kernel paging request
>> at virtual address 0804c3ac
>> Apr 23 13:57:47 sp kernel:  printing eip:
>> Apr 23 13:57:47 sp kernel: c0152dc0
>> Apr 23 13:57:47 sp kernel: *pde = 089f6067
>> Apr 23 13:57:47 sp kernel: *pte = 00000000
>> Apr 23 13:57:47 sp kernel: Oops: 0000
>> Apr 23 13:57:47 sp kernel: CPU:    0
>> Apr 23 13:57:47 sp kernel: EIP:    0010:[<c0152dc0>]    Not tainted
>> Apr 23 13:57:47 sp kernel: EFLAGS: 00010202
>> Apr 23 13:57:47 sp kernel: eax: d201fadc   ebx: d201fac0   ecx:
>> d7f86000   edx: 0804c3a4
>> Apr 23 13:57:47 sp kernel: esi: d7f86000   edi: 00000000   ebp:
>> 00000000   esp: c83adf04
>> Apr 23 13:57:47 sp kernel: ds: 0018   es: 0018   ss: 0018
>> Apr 23 13:57:47 sp kernel: Process pidof (pid: 7080, stackpage=c83ad000)
>> Apr 23 13:57:47 sp kernel: Stack: 522ba678 00000000 ffffffff 0000000c
>> 00000000 00000000 c02ba678 00000073
>> Apr 23 13:57:47 sp kernel:        c4b75580 c4bb7c80 c02ba678 c02ba828
>> 00000000 000001f0 c8443b00 00000000
>> Apr 23 13:57:47 sp kernel:        00000000 00000c00 c0150e04 d7f86000
>> dae26000 00000000 00000000 d7f86000
>> Apr 23 13:57:47 sp kernel: Call Trace:    [<c0150e04>] [<c013389c>] [<c0106cd3>]
>> Apr 23 13:57:47 sp kernel:
>> Apr 23 13:57:47 sp kernel: Code: 8b 42 08 8b 4a 04 8b 52 0c 29 c8 01
>> c5 85 d2 75 ef 8b 86 ec
>
> To get any idea, you need to translate these addresses to function
> names. You do this with ksymoops. Read the manpage or google - most
> basic use (and which should work if you have the necessary files
> installed) is to put the message in a file (e.g. file1) and run
> ksymoops file1
> --
> Didi
>
>