How best to debug a crash?

[Jamon Camisso]

jim ruxton wrote:
> Hi ,
> Occasionally my computer will completely lock up to the point where my
> only solution is a hard reset. ie. holding in the power button. I'm
> using Fedora 5. What is the best way to find out what went wrong. Also
> is there an alternative to the hard reset. I try killing X and that
> doesn't seem to work. It happens rarely so it is hard to find a pattern
> in what causes the freeze. Any suggestions what I should do when this
> happens. Hate to have to do a hard reset on a linux system : ( .

Someone (Seneca) taught me how to use alt+SysRQ. The magic order of keys 
I find works best is RESUB, easuy to rememer and pretty much covers 
rebooting as gracefully as possible.

More here: http://www.debian-administration.org/articles/457
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