Short HOWTO on reading a core to determine why my server is rebooting?

[Paul Hoffman]

Hi again. I have a server running 6.0 that has been spontaneously 
rebooting every few weeks. Is there a short HOWTO that tells me how 
to read the files in /var/crash to at least find out what the kernel 
thinks the issue is? There is nothing in /var/log/messages of 
interest before the crash, nothing in 'dmesg -a' in coming up that 
says anything interesting, and there's plenty of room on the drives.

--Paul Hoffman