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SubjectRe: 2.2.13pre13 chronic oops
	Regarding the same system as the below previous oops problem we were
seeing with 2.2.13pre13:

I've since upgraded to 2.2.13pre17 and we are no longer seeing the oops
in the quoted message, however now after about a week of running this version,
this morning we got this message and the system locked up (although we could
still ping it):

lexington kernel: Kernel panic: Free list corrupted
lexington kernel: Kernel panic: Free list corrupted

Unfortunately it logged no panic output at all. I have a serial
console on the box to catch oops that don't make it to the logs and/or screen
but even the serial console didn't log anything but this message. The system
configuration is in the below quoted message if this helps.
-Scott

--
Scott Lampert | Home Page: http://www.heavymetal.org
<fortunato@heavymetal.org> | PGP Key: finger fortunato@heavymetal.org
"Singe the Hare Hare, +-----------------------------------------
dance the Hoochie Koo!"



On Fri, Oct 08, 1999 at 06:07:30PM -0400, Scott Lampert wrote:
> We're running 2.2.13pre13 here and keep seeing this oops many times
> throughout a few days:
>
> Unable to handle kernel paging request at virtual address 74617453
> current->tss.cr3 = 06de9000, %cr3 = 06de9000
> *pde = 00000000
> Oops: 0000
> CPU: 0
> EIP: 0010:[<c012e6a4>]
> EFLAGS: 00010a97
> eax: 000017f8 ebx: 7461743b ecx: 00007240 edx: 00000c39
> esi: 00000000 edi: c55b700d ebp: 74617453 esp: c5d37f0c
> ds: 0018 es: 0018 ss: 0018
> Process in.identd (pid: 30957, process nr: 157, stackpage=c5d37000)
> Stack: c55b700d 00000001 c0213378 c55b700a 00007240 00000003 c0129834 c3962920
> c5d37f54 c5d37f54 c0129a93 c3962920 c5d37f54 00000001 cb2a7320 ffffffe9
> 00000001 bffff580 c55b700a 00000003 00007240 c0129c26 c55b7000 c3962920
> Call Trace: [<c0129834>] [<c0129a93>] [<c0129c26>] [<c01227a4>] [<c01229e6>] [<c
> 01079b8>]
> Code: 8b 6d 00 8b 4c 24 18 39 4b 48 75 54 8b 4c 24 24 39 4b 0c 75
>
>
> Running the latest ksymoops on it shows:
>
> >>EIP; c012e6a4 <d_lookup+5c/d0> <=====
> Trace; c0129834 <cached_lookup+10/54>
> Trace; c0129a93 <lookup_dentry+113/1e8>
> Trace; c0129c26 <open_namei+66/2ec>
> Trace; c01227a4 <filp_open+44/f0>
> Trace; c01229e6 <sys_open+36/94>
> Trace; c01079b8 <system_call+34/38>
> Code; c012e6a4 <d_lookup+5c/d0>
> 00000000 <_EIP>:
> Code; c012e6a4 <d_lookup+5c/d0> <=====
> 0: 8b 6d 00 movl 0x0(%ebp),%ebp <=====
> Code; c012e6a7 <d_lookup+5f/d0>
> 3: 8b 4c 24 18 movl 0x18(%esp,1),%ecx
> Code; c012e6ab <d_lookup+63/d0>
> 7: 39 4b 48 cmpl %ecx,0x48(%ebx)
> Code; c012e6ae <d_lookup+66/d0>
> a: 75 54 jne 60 <_EIP+0x60> c012e704 <d_lookup+bc/d0>
> Code; c012e6b0 <d_lookup+68/d0>
> c: 8b 4c 24 24 movl 0x24(%esp,1),%ecx
> Code; c012e6b4 <d_lookup+6c/d0>
> 10: 39 4b 0c cmpl %ecx,0xc(%ebx)
> Code; c012e6b7 <d_lookup+6f/d0>
> 13: 75 00 jne 15 <_EIP+0x15> c012e6b9 <d_lookup+71/d0>
>
>
> This doesn't mean anything to me, but perhaps it can help someone debug
> this. The problematic system's configuration is:
>
> Pentium III 450 - 440BX Chipset
> 256 megs RAM
> Adaptec AHA-2940 Ultra2 SCSI host adapter
> Intel EtherExpress Pro 10/100
> Seagate ST39173LW
> HP C1557A Cartridge Tape Drive
>
> The swap partition is 48 megs, though it rarely uses it.
>
> I'm going to try bumping the kernel up to the latest 2.2.13preXX
> tonight and see if it helps any.
> -Scott
>

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