2.6.8-2 oopses

[Jarosław Kamper]

 Second athlon made oops without reason and continue working:

Oct  5 08:29:51 prezes kernel: Unable to handle kernel NULL pointer dereference at virtual addres
s 00000fff
Oct  5 08:29:51 prezes kernel: printing eip:
Oct  5 08:29:51 prezes kernel: c016d5f4
Oct  5 08:29:51 prezes kernel: *pde = 1e84a001
Oct  5 08:29:51 prezes kernel: *pte = 00000000
Oct  5 08:29:51 prezes kernel: Oops: 0002 [#1]
Oct  5 08:29:51 prezes kernel: Modules linked in: button 8139too mii crc32 via_agp agpgart snd_pc
m_oss snd_mixer_oss snd_via82xx snd_ac97_codec snd_pcm snd_timer snd_page_alloc gameport snd_mpu4
01_uart snd_rawmidi snd_seq_device snd soundcore psmouse rtc ide_disk via82cxxx ide_core xfs
Oct  5 08:29:51 prezes kernel: CPU:    0
Oct  5 08:29:51 prezes kernel: EIP:    0060:[<c016d5f4>]    Not tainted
Oct  5 08:29:51 prezes kernel: EFLAGS: 00010216   (2.6.8)
Oct  5 08:29:51 prezes kernel: eax: df76932c   ebx: 00000fff   ecx: deeb9870   edx: dff016f0
Oct  5 08:29:51 prezes kernel: esi: df76932c   edi: 00000004   ebp: dff370e0   esp: deebbd58
Oct  5 08:29:51 prezes kernel: ds: 007b   es: 007b   ss: 0068
Oct  5 08:29:51 prezes kernel: Process aumix (pid: 2582, threadinfo=deeba000 task=deeb9790)
Oct  5 08:29:51 prezes kernel: Stack: 00000000 ffffffff 000a0000 ddcb07bc dff1853c 00001000 00000
004 dff370e0
Oct  5 08:29:51 prezes kernel: c01ba511 df76932c dff370e0 dff1853c dff370e0 00000000 00001000 000
00000
Oct  5 08:29:51 prezes kernel: c02d5577 00001000 00000004 deeb9790 c01e235a df76932c dff370e0 000
00000
Oct  5 08:29:51 prezes kernel: Call Trace:
Oct  5 08:29:51 prezes kernel: [<c01ba511>]
Oct  5 08:29:51 prezes kernel: [<c01e235a>]
Oct  5 08:29:51 prezes kernel: [<c02be62f>]
Oct  5 08:29:51 prezes kernel: [<c013c11a>]
Oct  5 08:29:51 prezes kernel: [<c01c7590>]
Oct  5 08:29:51 prezes kernel: [<c0160d8f>]
Oct  5 08:29:51 prezes kernel: [<c01253c5>]
Oct  5 08:29:51 prezes kernel: [<c01254b5>]
Oct  5 08:29:51 prezes kernel: [<c0126d02>]
Oct  5 08:29:51 prezes kernel: [<c0105d60>]
Oct  5 08:29:51 prezes kernel: [<e089546c>]
Oct  5 08:29:51 prezes kernel: [<e0895903>]
Oct  5 08:29:51 prezes kernel: [<c0154aab>]
Oct  5 08:29:51 prezes kernel: [<c0167df7>]
Oct  5 08:29:51 prezes kernel: [<c0117420>]
Oct  5 08:29:51 prezes kernel: [<c0105e47>]
Oct  5 08:29:51 prezes kernel: [<c010602e>]
Oct  5 08:29:51 prezes kernel: Code: c6 03 00 ff 4c 24 38 3b 76 0c 74 2c f6 46 04 10 74 26 83 eb
Oct  5 08:29:52 prezes kernel: <6>

After using ksymoops:

>>EIP; c016d5f4 <__d_path+14/160>   <=====

>>eax; df76932c <pg0+1f35232c/3fbe7000>
>>ecx; deeb9870 <pg0+1eaa2870/3fbe7000>
>>edx; dff016f0 <pg0+1faea6f0/3fbe7000>
>>esi; df76932c <pg0+1f35232c/3fbe7000>
>>ebp; dff370e0 <pg0+1fb200e0/3fbe7000>
>>esp; deebbd58 <pg0+1eaa4d58/3fbe7000>

Trace; c01ba511 <gr_to_filename3+71/d0>
Trace; c01e235a <gr_log_resource+35a/580>
Trace; c02be62f <schedule+26f/420>
Trace; c013c11a <buffered_rmqueue+da/1a0>
Trace; c01c7590 <gr_learn_resource+40/150>
Trace; c0160d8f <do_coredump+10f/208>
Trace; c01253c5 <__dequeue_signal+e5/1a0>
Trace; c01254b5 <dequeue_signal+35/90>
Trace; c0126d02 <get_signal_to_deliver+232/2f0>
Trace; c0105d60 <do_signal+80/130>
Trace; e089546c <pg0+2047e46c/3fbe7000>
Trace; e0895903 <pg0+2047e903/3fbe7000>
Trace; c0154aab <get_unused_fd+5b/e0>
Trace; c0167df7 <sys_ioctl+a7/230>
Trace; c0117420 <do_page_fault+0/651>
Trace; c0105e47 <do_notify_resume+37/40>
Trace; c010602e <work_notifysig+13/15>

Code;  c016d5f4 <__d_path+14/160>
00000000 <_EIP>:
Code;  c016d5f4 <__d_path+14/160>   <=====
   0:   c6 03 00                  movb   $0x0,(%ebx)   <=====
Code;  c016d5f7 <__d_path+17/160>
   3:   ff 4c 24 38               decl   0x38(%esp)
Code;  c016d5fb <__d_path+1b/160>
   7:   3b 76 0c                  cmp    0xc(%esi),%esi
Code;  c016d5fe <__d_path+1e/160>
   a:   74 2c                     je     38 <_EIP+0x38>
Code;  c016d600 <__d_path+20/160>
   c:   f6 46 04 10               testb  $0x10,0x4(%esi)
Code;  c016d604 <__d_path+24/160>
  10:   74 26                     je     38 <_EIP+0x38>
Code;  c016d606 <__d_path+26/160>
  12:   83 eb 00                  sub    $0x0,%ebx


-- 
Jarosław Kamper <jack w jack.eu.org>