System Shutting Down Unexpectedly (Ubuntu 10.04)

[NoOp]

On 08/03/2010 12:54 PM, Tom Browder wrote:
...
> Now I'm getting uncommanded shutdowns again.  I did file a bug report.
>  There are very similar bugs but usually associated with hang ups and
> failures to suspend or hibernate.
> 
> My system seems to be hibernating great--except I don't want it to!
> 
> The message I see on the console after an uncommanded shutdown is:
> 
> [ 5904.836193] Power down.
> [ 6280.181570] System halted.
> 
> I see messages about hibernate in /var/log messages but I can't see
> what triggers it.  From searching around, it looks like lots of
> programs, some apparently conflicting, can affect hibernation.
...

Do you have anything in your /var/log/pm-suspend.log?

What exactly are the hibernate messages in the messages log? Anything in
system or debug logs?

I seem to recall that you had the exact same problem last year with your
laptop. Is there anything that you recall doing on the laptop that you
may have carried over to the desktop relating to this? Also, can you
post the output of 'lshwtbdesktop.txt':

$ sudo lshw > lshwtbdesktop.txt

to pastebin?

One other thing you might consider trying is installing mcelog and
seeing if you can trap anything with that:
<http://www.cyberciti.biz/tips/linux-server-predicting-hardware-failure.html>