friday 13 bug?

[zohn_ming wu]

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@xxxxxxxxxxxxxxxxxxxxxxxxxxx@vger.kernel.orglinux-kernel@xxxxxxxxxxxxxxx

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