[lug] kernel paging request errors

[D. Stimits]

dan radom wrote:
> 
> hi,
> 
> every 10 minutes i get the following error in my logs...
> 
> Mar 26 15:50:01 mars kernel: Unable to handle kernel paging request at virtual address 5760c297

Does the address "5760c297" consistently appear? Is it always that
address? If and only if it is that address at all times, do you have
more than one DIMM or other memory type that you can swap locations with
(if so, physically swap memory and see if the address changes or the
machine has other problems that then show up)?

D. Stimits, stimits at idcomm.com

> lunar:~$ tail -20 /var/log/messages
> Mar 26 15:50:01 mars kernel: EIP:    0010:[sys_newlstat+32/96]
> Mar 26 15:50:01 mars kernel: EFLAGS: 00010293
> Mar 26 15:50:01 mars kernel: eax: 5760c233   ebx: c2af8242   ecx: ffffffff   edx: c0263230
> Mar 26 15:50:01 mars kernel: esi: c2af8242   edi: 0804d308   ebp: bfffdf0c   esp: c0c3ffc0
> Mar 26 15:50:01 mars kernel: ds: 0018   es: 0018   ss: 0018
> Mar 26 15:50:01 mars kernel: Process chown (pid: 3793, process nr: 63, stackpage=c0c3f000)
> Mar 26 15:50:01 mars kernel: Stack: c01079c8 0804d308 bfffdecc bfffdf34 0804d308 0804d308 bfffdf0c 0000006b
> Mar 26 15:50:01 mars kernel:        0000002b 0000002b 0000006b 400bee63 00000023 00000202 bfffde88 0000002b
> Mar 26 15:50:02 mars kernel: Call Trace: [system_call+52/56]
> Mar 26 15:50:02 mars kernel: Code: 8b 40 64 85 c0 74 11 8b 40 4c 85 c0 74 0a 53 ff d0 89 c3 83
> 
> the PID listed in the error is nonexistant by the time the error gets to syslogd.  i'm running kernel 2.2.18.  available swap is not an issue...
> Swap:  100760K av,    3256K used,   97504K free                   14916K cached
> 
> everything seems to be running fine as far as i can tell.  this machine is a httpd / smtpd / dhcpd / squid box.  any ideas as to how to begin to track this down?
> 
> thanks,
> 
> dan