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* 2.6.29.5 oops
@ 2009-06-30  7:10 aeriksson2
  2009-06-30 14:41 ` Frederik Deweerdt
  0 siblings, 1 reply; 3+ messages in thread
From: aeriksson2 @ 2009-06-30  7:10 UTC (permalink / raw)
  To: linux-kernel


One of my machines was found dead this morning. Looking at the logs picked up
by another machine, I found this:

Jun 30 00:05:52 tv BUG: unable to handle kernel paging request at 0007a2cd
Jun 30 00:05:52 tv IP: [<c021dc80>] 0xc021dc80
Jun 30 00:05:52 tv *pde = 00000000 
Jun 30 00:05:52 tv Oops: 0000 [#1] SMP 
Jun 30 00:05:52 tv ?z?{?z ?z?z?z?zz?z??{ ?{?{?z?z?!?{?{?|?}?}?}?|?|?{{?|?{?|?{?}?}?}?}?~?}?}?~?
Jun 30 00:05:52 tv ~??
                      ?~? }?
                            ???}}?}?|?|?z?z? ?z'?0|+?!}?}?|
                                                           ?
                                                            ~? ?
                                                                ?|%?-}+?0|0?'|?|?%{&?-xB?_sn?Ut>?Kue?|z{?[}C?4v.?0w0?+x&?'z&?'~*?+?.?.?3?4?
/?+?-?&?(?'?#?~?{ ?z?x?y?#z,?5~<?@?>?P?g?W?M?B?/?(?(?+?/?/~/?/{-?+y+?.y2?/y,?-x0?.x-?-x*?,x-?-x,?&y%?c050667c'?(y%?"x#?"y&?"x?x%?(y)?,y1?)x
 ?)x*?)y$?'y)?*y/?,y/?-x-?.w-?1w3?-x$?&x:?Bx??AwA?CwI?LwI?EwG?PvK?LuJ?EsI?KtN?LrJ?LtK?LtJ?Ot]?]tc?bti?mtd?lvd?Pw[??w?u???l?k?k?j?j?i?h?f?g?
 ?g?h?h?h???f???e?e?g??wjn?fmU?PpI?Cq??7q5?6q0?-q;?7p1?-p1?4o1?0o3?5o5?3o0?4o3?1o4?3p3?7p6?1p1?1q0?/q1?1p3?5p3?3p5?3p5?3p.?.p5?6o5?4p3?2p4?
0?1p3?2p0?,q-?.o1?/q+?)q-?.q.?-q-?-q-?/q1?-q.?.q1?3q.?)r(?*r,?.s,?&s&?(q+?-q,?*q)?,r.?+q*?(r(?.r0?*r*?(s(?(s)?*s'?)r(?'s(?'s'?d?blocknr]: b
it already clearedModules linked in: radeon drm hid_sunplus usbhid nfs it87 hwmon_vid bnep rfcomm l2cap nfsd lockd sunrpc exportfs ipv6 saa
7134_alsa tda1004x saa7134_dvb firmware_class videobuf_dvb dvb_core ir_kbd_i2c lirc_imon lirc_dev btusb tda827x snd_hda_codec_atihdmi tda82
90 snd_hda_codec_realtek tuner saa7134 ir_common v4l2_common videodev v4l1_compat ohci1394 videobuf_dma_sg videobuf_core ieee1394 tveeprom 
parport_pc i2c_piix4 r8169 snd_hda_intel ohci_hcd floppy sg k8temp rtc_cmos mii snd_hda_codec atiixp rtc_core parport pcspkr ati_agp agpgar
t rtc_lib
Jun 30 00:05:52 tv 
Jun 30 00:05:52 tv Pid: 5547, comm: lcdproc Not tainted (2.6.29.5 #1) System Product Name
Jun 30 00:05:52 tv EIP: 0060:[<c021dc80>] EFLAGS: 00010297 CPU: 1
Jun 30 00:05:52 tv EAX: 0007a2cd EBX: f6031688 ECX: 0007a2cd EDX: fffffffe
Jun 30 00:05:52 tv ESI: 0007a2cd EDI: ffffffff EBP: f6032000 ESP: f600fcd4
Jun 30 00:05:52 tv DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Jun 30 00:05:52 tv Process lcdproc (pid: 5547, ti=f600f000 task=f71378e0 task.ti=f600f000)
Jun 30 00:05:52 tv Stack:
Jun 30 00:05:52 tv c021ce61 f600fd88 f600fd84 c04bff5c 00000000 c021d194 ffffffff ffffffff
Jun 30 00:05:52 tv 00000000 f600fd4c c03e15fb 00001000 f6031000 00000000 f6031688 f6032000
Jun 30 00:05:52 tv ffffffff ffffffff ffffffff f600fd84 00000000 f600fd7c c03e102d 00000cab
Jun 30 00:05:52 tv Call Trace:
Jun 30 00:05:52 tv [<c021ce61>] 0xc021ce61
Jun 30 00:05:52 tv [<c021d194>] 0xc021d194
Jun 30 00:05:52 tv [<c0180571>] 0xc0180571
Jun 30 00:05:52 tv [<c019e809>] 0xc019e809
Jun 30 00:05:52 tv [<c03219e6>] 0xc03219e6
Jun 30 00:05:52 tv [<c016d9df>] 0xc016d9df
Jun 30 00:05:52 tv [<c038af32>] 0xc038af32
Jun 30 00:05:52 tv [<c018080c>] 0xc018080c
Jun 30 00:05:52 tv [<c01806ac>] 0xc01806ac
Jun 30 00:05:52 tv [<c019937c>] 0xc019937c
Jun 30 00:05:52 tv [<c0199324>] 0xc0199324
Jun 30 00:05:52 tv [<c016e247>] 0xc016e247
Jun 30 00:05:52 tv [<c016e352>] 0xc016e352
Jun 30 00:05:52 tv [<c0102c81>] 0xc0102c81
Jun 30 00:05:52 tv Code: 0e 89 c7 89 d0 f2 ae 74 05 bf 01 00 00 00 4f 89 f8 5f c3 85 c9 57 89 c7 89 d0 74 05 f2 ae 75 01 4f 89 f8 5f c3 89 
c1 89 c8 eb 06 <80> 38 00 74 07 40 4a 83 fa ff 75 f4 29 c8 c3 90 55 89 d5 57 56 
Jun 30 00:05:52 tv EIP: [<c021dc80>]  SS:ESP 0068:f600fcd4
Jun 30 00:05:52 tv ---[ end trace 423b4bc611ce6147 ]---


I have no idea where that garbage at the top came from. Runing it though 
ksymoops yields:
>>EIP; c021dc80 <strnlen+6/16>   <=====

Trace; c021ce61 <string+27/6d>
Trace; c021d194 <vsnprintf+2ed/731>
Trace; c0180571 <seq_printf+25/41>
Trace; c019e809 <show_stat+42d/740>
Trace; c03219e6 <sock_aio_read+ec/fa>
Trace; c016d9df <do_sync_read+c0/107>
Trace; c038af32 <__mutex_lock_slowpath+1e4/1ec>
Trace; c018080c <seq_read+160/327>
Trace; c01806ac <seq_read+0/327>
Trace; c019937c <proc_reg_read+58/6b>
Trace; c0199324 <proc_reg_read+0/6b>
Trace; c016e247 <vfs_read+81/f4>
Trace; c016e352 <sys_read+3c/63>
Trace; c0102c81 <sysenter_do_call+12/21>

Code;  c021dc80 <strnlen+6/16>
00000000 <_EIP>:
Code;  c021dc80 <strnlen+6/16>   <=====
   0:   0e                        push   %cs   <=====
Code;  c021dc81 <strnlen+7/16>
   1:   89 c7                     mov    %eax,%edi
Code;  c021dc83 <strnlen+9/16>
   3:   89 d0                     mov    %edx,%eax
Code;  c021dc85 <strnlen+b/16>
   5:   f2 ae                     repnz scas %es:(%edi),%al
Code;  c021dc87 <strnlen+d/16>
   7:   74 05                     je     e <_EIP+0xe>
Code;  c021dc89 <strnlen+f/16>
   9:   bf 01 00 00 00            mov    $0x1,%edi
Code;  c021dc8e <strnlen+14/16>
   e:   4f                        dec    %edi
Code;  c021dc8f <strnlen+15/16>
   f:   89 f8                     mov    %edi,%eax
Code;  c021dc91 <strstr+1/34>
  11:   5f                        pop    %edi
Code;  c021dc92 <strstr+2/34>
  12:   c3                        ret    
Code;  c021dc93 <strstr+3/34>
  13:   85 c9                     test   %ecx,%ecx
Code;  c021dc95 <strstr+5/34>
  15:   57                        push   %edi
Code;  c021dc96 <strstr+6/34>
  16:   89 c7                     mov    %eax,%edi
Code;  c021dc98 <strstr+8/34>
  18:   89 d0                     mov    %edx,%eax
Code;  c021dc9a <strstr+a/34>
  1a:   74 05                     je     21 <_EIP+0x21>
Code;  c021dc9c <strstr+c/34>
  1c:   f2 ae                     repnz scas %es:(%edi),%al
Code;  c021dc9e <strstr+e/34>
  1e:   75 01                     jne    21 <_EIP+0x21>
Code;  c021dca0 <strstr+10/34>
  20:   4f                        dec    %edi
Code;  c021dca1 <strstr+11/34>
  21:   89 f8                     mov    %edi,%eax
Code;  c021dca3 <strstr+13/34>
  23:   5f                        pop    %edi
Code;  c021dca4 <strstr+14/34>
  24:   c3                        ret    
Code;  c021dca5 <strstr+15/34>
  25:   89 00                     mov    %eax,(%eax)

Jun 30 00:05:52 tv EIP: [<c021dc80>]  SS:ESP 0068:f600fcd4


Any ideas what happened?

/Anders



^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: 2.6.29.5 oops
  2009-06-30  7:10 2.6.29.5 oops aeriksson2
@ 2009-06-30 14:41 ` Frederik Deweerdt
  2009-07-03  5:52   ` aeriksson2
  0 siblings, 1 reply; 3+ messages in thread
From: Frederik Deweerdt @ 2009-06-30 14:41 UTC (permalink / raw)
  To: aeriksson2; +Cc: linux-kernel

Hi,

On Tue, Jun 30, 2009 at 09:10:09AM +0200, aeriksson2@gmail.com wrote:
> 
> One of my machines was found dead this morning. Looking at the logs picked up
> by another machine, I found this:
> 
> Jun 30 00:05:52 tv BUG: unable to handle kernel paging request at 0007a2cd
								    ^^^^^^^^
[...]
> Jun 30 00:05:52 tv EAX: 0007a2cd EBX: f6031688 ECX: 0007a2cd EDX: fffffffe
			  ^^^^^^^^

[...]
> Jun 30 00:05:52 tv Code: 0e 89 c7 89 d0 f2 ae 74 05 bf 01 00 00 00 4f 89 f8 5f c3 85 c9 57 89 c7 89 d0 74 05 f2 ae 75 01 4f 89 f8 5f c3 89 
> c1 89 c8 eb 06 <80> 38 00 74 07 40 4a 83 fa ff 75 f4 29 c8 c3 90 55 89 d5 57 56 

Disassembling the above yields:
 804a058:       89 d0                   mov    %edx,%eax
 804a05a:       74 05                   je     804a061 <x+0x21>
 804a05c:       f2 ae                   repnz scas %es:(%edi),%al
 804a05e:       75 01                   jne    804a061 <x+0x21>
 804a060:       4f                      dec    %edi
 804a061:       89 f8                   mov    %edi,%eax
 804a063:       5f                      pop    %edi
 804a064:       c3                      ret    
 804a065:       89 c1                   mov    %eax,%ecx
 804a067:       89 c8                   mov    %ecx,%eax
 804a069:       eb 06                   jmp    804a071 <x+0x31> 
 804a06b:       80 38 00                cmpb   $0x0,(%eax)		 <== EIP
 804a06e:       74 07                   je     804a077 <x+0x37>
 804a070:       40                      inc    %eax
 804a071:       4a                      dec    %edx
 804a072:       83 fa ff                cmp    $0xffffffff,%edx
 804a075:       75 f4                   jne    804a06b <x+0x2b>
 804a077:       29 c8                   sub    %ecx,%eax
 804a079:       c3                      ret    
 804a07a:       90                      nop    
 804a07b:       55                      push   %ebp

A dereferencing which is more inline with the paging request noted above
(compared to the push noted below).
I guess it would be helpful if you could point to the right function
using the above.

Regards,
Frederik


> Jun 30 00:05:52 tv EIP: [<c021dc80>]  SS:ESP 0068:f600fcd4
> Jun 30 00:05:52 tv ---[ end trace 423b4bc611ce6147 ]---
> 
> 
> I have no idea where that garbage at the top came from. Runing it though 
> ksymoops yields:
> >>EIP; c021dc80 <strnlen+6/16>   <=====
> 
> Trace; c021ce61 <string+27/6d>
> Trace; c021d194 <vsnprintf+2ed/731>
> Trace; c0180571 <seq_printf+25/41>
> Trace; c019e809 <show_stat+42d/740>
> Trace; c03219e6 <sock_aio_read+ec/fa>
> Trace; c016d9df <do_sync_read+c0/107>
> Trace; c038af32 <__mutex_lock_slowpath+1e4/1ec>
> Trace; c018080c <seq_read+160/327>
> Trace; c01806ac <seq_read+0/327>
> Trace; c019937c <proc_reg_read+58/6b>
> Trace; c0199324 <proc_reg_read+0/6b>
> Trace; c016e247 <vfs_read+81/f4>
> Trace; c016e352 <sys_read+3c/63>
> Trace; c0102c81 <sysenter_do_call+12/21>
> 
> Code;  c021dc80 <strnlen+6/16>
> 00000000 <_EIP>:
> Code;  c021dc80 <strnlen+6/16>   <=====
>    0:   0e                        push   %cs   <=====
> Code;  c021dc81 <strnlen+7/16>
>    1:   89 c7                     mov    %eax,%edi
> Code;  c021dc83 <strnlen+9/16>
>    3:   89 d0                     mov    %edx,%eax
> Code;  c021dc85 <strnlen+b/16>
>    5:   f2 ae                     repnz scas %es:(%edi),%al
> Code;  c021dc87 <strnlen+d/16>
>    7:   74 05                     je     e <_EIP+0xe>
> Code;  c021dc89 <strnlen+f/16>
>    9:   bf 01 00 00 00            mov    $0x1,%edi
> Code;  c021dc8e <strnlen+14/16>
>    e:   4f                        dec    %edi
> Code;  c021dc8f <strnlen+15/16>
>    f:   89 f8                     mov    %edi,%eax
> Code;  c021dc91 <strstr+1/34>
>   11:   5f                        pop    %edi
> Code;  c021dc92 <strstr+2/34>
>   12:   c3                        ret    
> Code;  c021dc93 <strstr+3/34>
>   13:   85 c9                     test   %ecx,%ecx
> Code;  c021dc95 <strstr+5/34>
>   15:   57                        push   %edi
> Code;  c021dc96 <strstr+6/34>
>   16:   89 c7                     mov    %eax,%edi
> Code;  c021dc98 <strstr+8/34>
>   18:   89 d0                     mov    %edx,%eax
> Code;  c021dc9a <strstr+a/34>
>   1a:   74 05                     je     21 <_EIP+0x21>
> Code;  c021dc9c <strstr+c/34>
>   1c:   f2 ae                     repnz scas %es:(%edi),%al
> Code;  c021dc9e <strstr+e/34>
>   1e:   75 01                     jne    21 <_EIP+0x21>
> Code;  c021dca0 <strstr+10/34>
>   20:   4f                        dec    %edi
> Code;  c021dca1 <strstr+11/34>
>   21:   89 f8                     mov    %edi,%eax
> Code;  c021dca3 <strstr+13/34>
>   23:   5f                        pop    %edi
> Code;  c021dca4 <strstr+14/34>
>   24:   c3                        ret    
> Code;  c021dca5 <strstr+15/34>
>   25:   89 00                     mov    %eax,(%eax)
> 
> Jun 30 00:05:52 tv EIP: [<c021dc80>]  SS:ESP 0068:f600fcd4
> 
> 
> Any ideas what happened?
> 
> /Anders
> 
> 
> --
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^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: 2.6.29.5 oops
  2009-06-30 14:41 ` Frederik Deweerdt
@ 2009-07-03  5:52   ` aeriksson2
  0 siblings, 0 replies; 3+ messages in thread
From: aeriksson2 @ 2009-07-03  5:52 UTC (permalink / raw)
  To: Frederik Deweerdt; +Cc: linux-kernel


frederik.deweerdt@xprog.eu said:
> Jun 30 00:05:52 tv BUG: unable to handle kernel paging request at 0007a2cd
> 								    ^^^^^^^^ 
> [...]
> Jun 30 00:05:52 tv EAX: 0007a2cd EBX: f6031688 ECX: 0007a2cd EDX: fffffffe
> 			  ^^^^^^^^
> [...]
> Jun 30 00:05:52 tv Code: 0e 89 c7 89 d0 f2 ae 74 05 bf 01 00 00 00 4f 89 f8
> 5f c3 85 c9 57 89 c7 89 d0 74 05 f2 ae 75 01 4f 89 f8 5f c3 89 
> c1 89 c8 eb 06 <80> 38 00 74 07 40 4a 83 fa ff 75 f4 29 c8 c3 90 55 89 d5 57
> 56 

> Disassembling the above yields:
>  804a058:       89 d0                   mov    %edx,%eax
>  804a05a:       74 05                   je     804a061 <x+0x21>
>  804a05c:       f2 ae                   repnz scas %es:(%edi),%al
>  804a05e:       75 01                   jne    804a061 <x+0x21>
>  804a060:       4f                      dec    %edi
>  804a061:       89 f8                   mov    %edi,%eax
>  804a063:       5f                      pop    %edi
>  804a064:       c3                      ret    
>  804a065:       89 c1                   mov    %eax,%ecx
>  804a067:       89 c8                   mov    %ecx,%eax
>  804a069:       eb 06                   jmp    804a071 <x+0x31> 
>  804a06b:       80 38 00                cmpb   $0x0,(%eax)		 <== EIP
>  804a06e:       74 07                   je     804a077 <x+0x37>
>  804a070:       40                      inc    %eax
>  804a071:       4a                      dec    %edx
>  804a072:       83 fa ff                cmp    $0xffffffff,%edx
>  804a075:       75 f4                   jne    804a06b <x+0x2b>
>  804a077:       29 c8                   sub    %ecx,%eax
>  804a079:       c3                      ret    
>  804a07a:       90                      nop    
>  804a07b:       55                      push   %ebp

> A dereferencing which is more inline with the paging request noted above
> (compared to the push noted below). I guess it would be helpful if you could
> point to the right function using the above. 

Do you want _me_ to do that? I have no idea how to do it. I guess others might 
though.

/Anders


^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2009-07-03  5:53 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2009-06-30  7:10 2.6.29.5 oops aeriksson2
2009-06-30 14:41 ` Frederik Deweerdt
2009-07-03  5:52   ` aeriksson2

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