How best to debug a crash?

[jim ruxton]

> > 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
Thank you. For some reason I can't get this key combination to work for
me. My computer wants to do a screen grab when I do this. My SysRQ key
seems to want to do a screen grab. Perhaps I don't understand what you
mean by RESUB?
Jim
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