9.10 and sudden reboots on a Lenovo T60 thinkpad

[Mike McGinn]

On Thursday 04 March 2010 08:55:55 Bill Moseley wrote:
> On Wed, Mar 3, 2010 at 9:33 PM, Smoot Carl-Mitchell <smoot at tic.com> wrote:
> > Check your logs for a message which indicates ACPI thinks something is
> > over temperature and a shutdown was initiated.  I have had intermittent
> > temperature sensor problems on my T61 which has caused it to shutdown on
> > occasion.  Other folks have had the same problem and it appears to be a
> > rather odd ACPI bug.  The message in the logs is something like:
> >
> > Critical temperature reached...
> 
> Nope.  Plus, this is not a normal OS shut-down.  Yesterday, for example, I
> was composing an email in Chrome/Gmail and the screen just when black and
> within a second the Thinkpad's BIOS splash screen displayed.  As if the
> machine was off and I just turned it on to start it up.    Nothing to
> indicate it was restarting or halting or anything in the logs I could see.
> 
> More commonly, I'm seeing freezes.  Also yesterday I unplugged the power
> cord and the machine froze.  I could not change VTs (e.g. ctrl+alt+F1).
>  Also sometimes happens after waking up from sleeping.  Had to hold down
>  the power button.
> 
> I'm starting to suspect hardware on the laptop, but like I said this all
> started with 9.10 upgrade.  I should probably reinstall 9.04 and see if it
> goes away.  Not thrilled about having to rebuild all the tools I need for
> work on this laptop, but a fresh install is always a nice way to clean out
> the crud.
> 

Sounds like a memory problem to me.
I would boot into the memory test and let it run overnight before you go 
through all the trouble of rebuilding your system.


-- 
Mike McGinn		FACOCM
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