On Sat, Jul 16, 2005 at 11:25:56AM +1200, Tom enlightened us:
It doesn't appear to be changing runlevels (how would it by itself?), nothing at all in the logs from when it stops working to when it reboots (after pushing the button).
I've been running into this on one of my RHEL3 servers. Pre-existing processes continue to run, but everything else (including logging) just stops. Rebooting from the power switch is the best I can do in that situation.
If anyone has suggestions where to start trying to debug, I'd be happy to listen.
Matt