linux-kernel - Re: Machine Check Exception on Opteron 265

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Date:	Tue, 17 Apr 2007 14:56:18 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	"Drift@...lde" <drift@...lde.org>
Cc:	espen@...gen.tihlde.org, linux-kernel@...r.kernel.org
Subject: Re: Machine Check Exception on Opteron 265

On Sat, 14 Apr 2007 16:58:43 +0200
Espen Fjellvær Olsen <espen@...gen.tihlde.org> wrote:

> Hi!
> Today our Opteron 265, 2x2, paniced after many months uptime, giving
> only this error message:
> 
> HARDWARE ERROR
> CPU 2: Machine Check Exception:            4 Bank 4: b60a200100000813
> TSC 6bb9fd0142921a ADDR a891e9b8
> This is not a software problem!
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^]

This is there for a good reason.

> We updated glibc yesterday, but that shouldnt really cause such a problem.
> So now we wonder if this might be an MCE bug, or really a HW problem,
> and if it is one of the CPUs, or the RAM thats faulty.

Consult your hardware vendor but if its a single event in a year it might
be anything - even cosmic rays.

Alan
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