How do I debug/troubleshoot a crashing system ?

[Phil Schaffner]

On Tue, 2005-01-25 at 19:09 -0700, Kim Lux wrote:
> I've got a system that freezes up solid when I am doing certain network
> operations.  I can't open a new session, I can't unfreeze it, basically
> all I can do is power down and reboot. 
> 
> How do I figure out what is causing the problem ?  I've checked the
> system logs, but they are clean. 
> 
> What else could I look at and how ?

Serial console?

Phil