total system freeze - where to look for more information

[Zbigniew Szalbot]

Dear all,

Today - for the first time ever - I have a total system freeze. It 
occured after 105 days of uninterrupted work. The freeze was 
unrecoverable because even though I attached a screen to the machine, I 
was not able to do anything with it. I had to hard-reboot it.

dmesg.today has just one line (and dmesg.yestarday is empty).

pid 25536 (portmanager), uid 0: exited on signal 6 (core dumped)

This file was modified at night so it does not contain any useful 
information.

Where can I look for more information? The only thing that comes to my 
mind is that today I installed denyhosts-2.6. It is possible that the 
freeze occured during dump operation which is done to a network drive 
mounted via mount_nfs option.

FreeBSD lists.lc-words.com 6.2-RELEASE FreeBSD 6.2-RELEASE #0: Mon Jan 
22 12:52:41 CET 2007     root at 192.168.11.51:/usr/obj/usr/src/sys/LISTS  i386

Many thanks in advance!

Zbyszek