[cobalt-users] Kernel: Oops (raqr4)

["Jon" <jjma100@xxxxxxxxxxx>]

Help,

I had to reboot the cobalt via our apc switch today as the
connection to the server hung and on investigation I have noticed
alot of

"possible SYN flooding on port 80. Sending cookies." in the
kernel log

and after rebbot a:

an  9 14:22:57 l4i kernel: Oops: 0000
Jan  9 14:22:57 l4i kernel: CPU:    0
Jan  9 14:22:57 l4i kernel: EIP:
0010:[ext2_free_blocks+40/820]
Jan  9 14:22:57 l4i kernel: EFLAGS: 00010286
Jan  9 14:22:57 l4i kernel: eax: 001be203   ebx: d2b078a0   ecx:
001be203   edx: c5ba4dd0
Jan  9 14:22:57 l4i kernel: esi: fbfe0400   edi: 00000000   ebp:
001be203   esp: c7a4dec8
Jan  9 14:22:57 l4i kernel: ds: 0018   es: 0018   ss: 0018
Jan  9 14:22:57 l4i kernel: Process httpd (pid: 1310, process nr:
65, stackpage=c7a4d000)
Jan  9 14:22:57 l4i kernel: Stack: 00000000 c5ba4dd0 00000004
001be209 c0126086 d2b078a0 d2b078a0 00000006
Jan  9 14:22:57 l4i kernel:        c01427a8 c5ba4dd0 001be203
00000007 c5ba4dd0 c5ba4dd0 00000000 c5ba4ea0
Jan  9 14:22:57 l4i kernel:        c5ba4e9c 00000002 001be203
00000000 0000000c c0142da6 c5ba4dd0 c5ba4dd0
Jan  9 14:22:57 l4i kernel: Call Trace: [put_last_free+50/124]
[trunc_direct+292/308] [ext2_truncate+98/496]
[ext2_delete_inode+102/140] [ext2_delete_inode+124/140]
[iput+131/508] [d_delete+74/104]
Jan  9 14:22:57 l4i kernel:        [ext2_unlink+383/416]
[vfs_unlink+225/232] [sys_unlink+106/164] [system_call+52/56]
Jan  9 14:22:57 l4i kernel: Code: 80 7f 11 00 74 09 56 e8 c0 d9
fe ff 83 c4 04 c6 46 11 01 ba

After 20 minutes being up the server will start to fall over with
httpd failing to respond and sendmail rejecting mail due to load
average high: 177; but I can access the server administration
panel.

Have tried to reboot the network via /etc/rc.d/init.d/network
stop && /etc/rc.d/init.d/network start but this doesn't lessen
the load neither does killall httpd which I thought might be the
problem, an errant httpd.

Can anyone help.

regards

Jon