Kernel panic/exception

[Noam Rathaus]

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:  1Unable 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 = 
Apr 23 13:57:47 sp kernel: Oops: 
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:    ebp:
   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   000c
  c02ba678 0073
Apr 23 13:57:47 sp kernel:c4b75580 c4bb7c80 c02ba678 c02ba828
 01f0 c8443b00 
Apr 23 13:57:47 sp kernel: 0c00 c0150e04 d7f86000
dae26000   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

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Re: Kernel panic/exception

[Yedidyah Bar-David]

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:  1Unable 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 = 
 Apr 23 13:57:47 sp kernel: Oops: 
 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:    ebp:
    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   000c
   c02ba678 0073
 Apr 23 13:57:47 sp kernel:c4b75580 c4bb7c80 c02ba678 c02ba828
  01f0 c8443b00 
 Apr 23 13:57:47 sp kernel: 0c00 c0150e04 d7f86000
 dae26000   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


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Re: 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 0240.
Apr 23 04:03:46 sp kernel: memory.c:100: bad pmd 0240.
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...@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:  1Unable 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 = 
 Apr 23 13:57:47 sp kernel: Oops: 
 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:    ebp:
    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   000c
   c02ba678 0073
 Apr 23 13:57:47 sp kernel:        c4b75580 c4bb7c80 c02ba678 c02ba828
  01f0 c8443b00 
 Apr 23 13:57:47 sp kernel:         0c00 c0150e04 d7f86000
 dae26000   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



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