Crash in 2.4.8 with patch 2001-08-13

[Klaus Jaehne <klaus.jaehne@to.com>]

Hi,

We have a 4-way Xeon machine with 2G RAM running the latest XFS-patched
Kernel - currently 2.4.8 with patch 2001-08-13 - on RedHat 7.1.
We have kernel crashes every three or four days with messages like this:

Unable to handle kernel paging request at virtual address 0400000d
c012f632
*pde = 00000000
Oops: 0000
CPU:    1
EIP:    0010:[<c012f632>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010206
eax: 04000000   ebx: c03819d0   ecx: c1b63fc4   edx: c03ef3a8
esi: c15caf48   edi: c1b63fe0   ebp: c15caf64   esp: f7be5f94
ds: 0018   es: 0018   ss: 0018
Process kswapd (pid: 7, stackpage=f7be5000)
Stack: 000000c0 00000000 f7be4331 0008e000 00000405 c1b63fe0 00000040
00000000
       00000000 0001a3bb 00000000 c0130252 000000c0 00000000 f7be4000
c02a66b1
       f7be4331 c01302de 000000c0 00000000 00010f00 c3237fb4 c0105000
c010576f
Call Trace: [<c0130252>] [<c01302de>] [<c0105000>] [<c010576f>]
Code: 80 78 0d 01 0f 85 f8 00 00 00 8d 6e 1c 8b 46 1c 8b 55 04 89

>>EIP; c012f632 <page_launder+a6/8b4>   <=====
Trace; c0130252 <do_try_to_free_pages+12/44>
Trace; c01302de <kswapd+5a/e8>
Trace; c0105000 <_stext+0/0>
Trace; c010576f <kernel_thread+23/30>
Code;  c012f632 <page_launder+a6/8b4>
00000000 <_EIP>:
Code;  c012f632 <page_launder+a6/8b4>   <=====
   0:   80 78 0d 01               cmpb   $0x1,0xd(%eax)   <=====
Code;  c012f636 <page_launder+aa/8b4>
   4:   0f 85 f8 00 00 00         jne    102 <_EIP+0x102> c012f734
<page_launder+1a8/8b4>
Code;  c012f63c <page_launder+b0/8b4>
   a:   8d 6e 1c                  lea    0x1c(%esi),%ebp
Code;  c012f63f <page_launder+b3/8b4>
   d:   8b 46 1c                  mov    0x1c(%esi),%eax
Code;  c012f642 <page_launder+b6/8b4>
  10:   8b 55 04                  mov    0x4(%ebp),%edx
Code;  c012f645 <page_launder+b9/8b4>
  13:   89 00                     mov    %eax,(%eax)

Might this be an XFS problem that will be fixed some day or could it be a
hardware error?

-- 
        greetings,
	Klaus Jähne
________________________________________________________________________
Thinking Objects Software GmbH,  Lilienthalstr. 2,  70825 Stuttgart,  DE
phone 49 711 88770 400, fax 449, klaus.jaehne@to.com, http://www.to.com/
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