[lug] Lock up?

[D. Stimits]

Justin wrote:
> 
> One of my redhat 6.1 boxes just locked up a bit ago for apparently no reason.
> It completely froze, I couldn't ssh into it or ping it or anything. My
> windowmaker desktop was frozen with one Eterm (running tail -f) and one xterm
> (running sniffit -i) and the normal dock apps I use. I don't know the exact
> time it locked because I wasn't using it. I checked to make sure the cpu fan
> was still working in case it was a cause of overheating, that was ok. I
> checked for core files after the reboot and checked the log files but found
> nothing. Is there anything else I can look for after the fact? It's odd
> because the box had an uptime of 48 days before this lockup. Any ideas?
> 
> Justin
> 
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Some people have mentioned possible power supply problems. I have seen
linux lock up when the lights blinked and the box wasn't on an UPS. Do
you have an UPS? A flakey power supply includes not just the supply, but
the source feeding it, as a possibility.