RHEL4 System Crash: Unable to handle kernel paging request at virtual address
jim.nelson at neteasyinc.com
Wed Jun 6 07:36:23 CDT 2007
Shane Presley wrote:
> I had a RHEL4 system crash a day or two ago. First RedHat system that
> I've ever seen completely hung, requiring me to hard power cycle it.
> Felt like my Windows days. But then it happened yesterday as well.
> So something is wrong with this server.
> It's fully patched (up2date), and is a Dell 2850. I captured the
> /var/log/messages right before it panicked and here's the logs:
> So I'm not sure what to make of that. I noticed one process name in
> there (bbtest-net) which is part of my BigBrother monitoring system.
> But that's been running OK for years, and hasn't been changed
> recently. Not sure where else to look. Could this be a hardware
> (memory?) problem?
Another thing that I've run into is overheating - we had a PE1800 that would go
out to lunch at 4 AM on a semi-regular basis - turned out that the cooling was
inadequate in the server room, and a late-night batch processing job on another
machine overheated the room. It would throw completely random kernel panics,
but dropping a spot cooler in front of the rack stabilized it.
Don't know if that's the case, but it took setting up a temperature monitor in
the room to catch it...
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