friday 13 bug?

Kernel 2.4.23 on redhat 8.0Please cc any response from
linux kernel list. TIA.

On or about 7:50am Friday 13 2004 my postgresql server
breaks down. I can ssh and use "top" and "ps" but
postgresql stops accepting connection. A small perl
script that logs system load average also hangs. I
cannot "kill -9" any hang processes including
postgreqsql postmaster process.

I then check dmesg and found error message that I copy
and paste at the bottom.

I finally issued reboot but reboot also didn't work
and I had to push the reset button.

AMD XP 2500+ with 1.5GB Memory. Postgresql data lives
on a software raid 1 device.

Kernel 2.4.23 on redhat 8.0

Postgresql 7.4

The last time server was rebooted was about 60 days
ago when I upgraded the kernel

Can someone suggest anything to help me avoid this
type of breakdown? I tried to post the message
yesterday but postgresql list wasn't responding at all
to subscription request.

------------

swap_free: Bad swap file entry 00000004
kernel BUG at buffer.c:539!
invalid operand: 0000
CPU: 0
EIP: 0010:[<c0138e8e>] Not tainted
EFLAGS: 00010282
eax: cfd10a40 ebx: 00000002 ecx: e75f6ac0 edx:
c02c548c
esi: e75f6ac0 edi: 00000001 ebp: e75f6ac0 esp:
f74efe60
ds: 0018 es: 0018 ss: 0018
Process postmaster (pid: 457, stackpage=f74ef000)
Stack: 00000002 c01397ab e75f6ac0 00000002 e75f6ac0
00001000 c013a326 e75f6ac0
00001000 00000000 00420000 00000000 c2166b40
f7822980 c013aaef f7822980
c2166b40 00000000 00001000 c2166b40 f7822980
00001000 f7822a34 c016064c
Call Trace: [<c01397ab>] [<c013a326>] [<c013aaef>]
[<c016064c>] [<c0160310>]
[<c012af71>] [<c012b4f6>] [<c015d8a9>] [<c0137753>]
[<c010733f>]



Code: 0f 0b 1b 02 17 e0 23 c0 8b 02 85 c0 75 07 89 0a
89 49 24 8b
linux-kernel(at)vger(dot)kernel(dot)orglinux-kernel@vger(dot)kernel(dot)orglinux-kernel(at)vger(dot)kernel(dot)org

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