[ale] Kernal Panic on kswapd!!!!

[Michael Smith]

    I am wondering if this may have been a hack...or maybe my hard drive is
going bad....

    The only ports I have open on my machine are 25 for smtp and 80 for
http(Running Redhat 7.1 with the latest stuff from updates.redhat.com).  If
it was a hack they did a pretty good job.  One thing that was interesting
was that the last logon as root was from my router not locally. :(

This was the last log in my accesss_log from apache but there are no logs
around that time for sendmail(smtp)

65.116.145.15 - - [02/Jan/2002:04:02:21 -0500] "GET /robots.txt HTTP/1.1"
404 296 "-" "Mozilla/4.0 compatible ZyBorg/1.0 (ZyBorg at WISEnutbot.com;
http://www.WISEnutbot.com)"

I don't think this would have anything to do with it but.....

Here's part of my /var/log/messages file...  It actually panicked 17 times
but I didn't want to send out too much information.  If anyone has any ideas
on how I may be able to avoid this in the future, I would appreciated it....

Just for fyi, I have 512 meg of reasonably high quality memory, I have a 530
meg swap file and I am running raid1.... Another weird thing is that I can't
find a core dump from that time anywhere.....



Jan  2 04:03:45 hercules kernel: ------------[ cut here ]------------
Jan  2 04:03:45 hercules kernel: kernel BUG at slab.c:932!
Jan  2 04:03:45 hercules kernel: invalid operand: 0000
Jan  2 04:03:45 hercules kernel: CPU:    0
Jan  2 04:03:45 hercules kernel: EIP:    0010:[__kmem_cache_shrink+42/124] 
  Not tainted
Jan  2 04:03:45 hercules kernel: EIP:    0010:[<c0129346>]    Not tainted
Jan  2 04:03:45 hercules kernel: EFLAGS: 00010096
Jan  2 04:03:45 hercules kernel: eax: 0000001a   ebx: c7964000   ecx:
00000001   edx: 000021d5
Jan  2 04:03:45 hercules kernel: esi: c1c860b0   edi: 00000000   ebp:
0008e000   esp: c188dfac
Jan  2 04:03:45 hercules kernel: ds: 0018   es: 0018   ss: 0018
Jan  2 04:03:45 hercules kernel: Process kswapd (pid: 5, stackpage=c188d000)
Jan  2 04:03:45 hercules kernel: Stack: c0219786 000003a4 000078b9 000000c0
c012b8c2 c1c860b0 000000c0 000000c0 
Jan  2 04:03:45 hercules kernel:        00000000 00000006 000000c0 c012b949
000000c0 00000000 00010f00 c188bfb8 
Jan  2 04:03:45 hercules kernel:        c0105000 c010566e 00000000 c012b8f4
c02ebfd8 
Jan  2 04:03:45 hercules kernel: Call Trace: [error_table+21278/25347]
error_table [kernel] 0x531e 
Jan  2 04:03:45 hercules kernel: Call Trace: [<c0219786>] error_table
[kernel] 0x531e 
Jan  2 04:03:45 hercules kernel: [do_try_to_free_pages+26/76]
do_try_to_free_pages [kernel] 0x1a 
Jan  2 04:03:45 hercules kernel: [<c012b8c2>] do_try_to_free_pages [kernel]
0x1a 
Jan  2 04:03:45 hercules kernel: [kswapd+85/232] kswapd [kernel] 0x55 
Jan  2 04:03:45 hercules kernel: [<c012b949>] kswapd [kernel] 0x55 
Jan  2 04:03:45 hercules kernel: [_stext+0/40] stext [kernel] 0x0 
Jan  2 04:03:45 hercules kernel: [<c0105000>] stext [kernel] 0x0 
Jan  2 04:03:45 hercules kernel: [kernel_thread+38/48] kernel_thread
[kernel] 0x26 
Jan  2 04:03:45 hercules kernel: [<c010566e>] kernel_thread [kernel] 0x26 
Jan  2 04:03:45 hercules kernel: [kswapd+0/232] kswapd [kernel] 0x0 
Jan  2 04:03:45 hercules kernel: [<c012b8f4>] kswapd [kernel] 0x0 
Jan  2 04:03:45 hercules kernel: 
Jan  2 04:03:45 hercules kernel: 
Jan  2 04:03:45 hercules kernel: Code: 0f 0b 58 5a 8b 53 04 8b 03 89 50 04
89 02 c7 43 04 00 00 00 




-- 
Michael Smith
msmith at mikeandmel.com


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