server hanged per hour

Bill Davidsen davidsen at tmr.com
Fri Jun 13 13:39:40 UTC 2008


Rilawich Ango wrote:
> The hourly reboot is abnormal.  I have no rebooting job in
> /etc/cron.hourly.  The reboot seems caused by something (hardward,
> kernel) that I don't know.  The server runs for several months without
> problem.  Hourly reboot is found this week but it keeps rebooting.  We
> have hard reset the server but reboot still alive.
> Below is the complete log message when it rebooted.  You can see
> 09:36:07 the server rebooted itself.  Next reboot will be 10:3x.
> Anyone can help to find out what problem it is?
> 
> Fedora 8
> kernel: 2.6.23.1-49.fc8
> Intel(R) Core(TM)2 Duo CPU E4500 @2.20GHz
> 
By any chance does this only happen during the warm months? How stable 
is the temperature and the power? And what do you have in cron.hourly? 
It's unlikely that you are running so close to thermal trouble that a 
single CPU-bound job would cause reboot, but anything is possible.

Can you get some CPU temp readings from 'sensors' every minute or so and 
see if the information suggests anything?

-- 
Bill Davidsen <davidsen at tmr.com>
   "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot




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