System Shutting Down Unexpectedly (Ubuntu 10.04)

[Tom Browder]

On Sun, Aug 1, 2010 at 21:07, Tom Browder <tom.browder at gmail.com> wrote:
> On Sun, Aug 1, 2010 at 19:35, NoOp <glgxg at sbcglobal.net> wrote:
>> On 08/01/2010 04:27 AM, Tom Browder wrote:
>>> On Sat, Jul 31, 2010 at 17:52, Tom Browder <tom.browder at gmail.com> wrote:
>>> ...
>>>> Since I changed rc2.d to kill the acpi control script, my box has
>>>> continued to run (knock on wood).  It has now been running several
>>>> hours longer than it usually does before shutting down.
>>>
>>> Uptime is now 23 hrs since I changed rc2.d to kill the acpi control script.
>
> Now uptime is over 36 hrs.

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.

I am real confused and would appreciate any more
suggestions--especially about debugging instrumentation to see what is
happening.

Thanks,

-Tom