[CentOS] Kernel Panic Help

I have a CentOS 5.4 64 bit server running on a supermicro motherboard.
 It kernel paniced last night.

http://www.freeimagehosting.net/image.php?c51cb1be89.jpg

Any ideas?  Its running the latest version of Squid available with
yum.  Memory issue?

Would adding:

kernel.panic = 10

to:

/etc/sysctl.conf

Have caused it to reboot after 10 seconds instead of just sitting there?

Matt