Re: Strange system behavior

[David Laight <david%l8s.co.uk@localhost>]

On Mon, Sep 20, 2010 at 06:16:31PM -0400, Perry E. Metzger wrote:
> On Mon, 20 Sep 2010 13:21:24 -0700 (PDT) Paul Goyette
> <paul%whooppee.com@localhost> wrote:
> > (Resending without most of the original attachments, since that
> > seems to have exceeded a message-size limit!)
> > 
> > 
> > I have a new machine in my farm, and it is exhibiting some very
> > strange behavior.
> > 
> > Essentially, this machine does nothing more than 'build.sh release"
> > several times daily for port-amd64.  (See [1] for test results!)
> > 
> > About half of the time, the build fails due to some host utility
> > receiving a "segmentation fault", and almost always it fails on the
> > exact same command and at the exact same place in the build!  But
> > re-running the failed command interactively succeeds without any
> > problem.
> 
> I'm betting you have bad memory. Try running memtest86 for a couple
> of days on the box and see what happens.

memtest86 won't find problems caused by power glitches when the disks
are active.
Nor anthing related to buggy cpu synchronisation instructions (are there
any of those left in the latest batch of cpus?)

        David

-- 
David Laight: david%l8s.co.uk@localhost