linux-kernel - Re: MCE triggered with v3.1 and v3.2 on Xeon E5

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Message-ID: <CA+8MBb+7jJq8KjGdaJHwed2u4=6XGs+cWxALVro9E5R1sZihWg@mail.gmail.com>
Date:	Fri, 30 Mar 2012 10:07:55 -0700
From:	Tony Luck <tony.luck@...el.com>
To:	Arnaud Lacombe <lacombar@...il.com>
Cc:	x86@...nel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: MCE triggered with v3.1 and v3.2 on Xeon E5

On Fri, Mar 30, 2012 at 9:15 AM, Arnaud Lacombe <lacombar@...il.com> wrote:
> Currently, I would suspect an hardware issue as the machine is brand
> new. I'll see if v3.3 trigger the same MCE and eventually run a
> memtest.

Probably a bad DIMM (you have 4 corrected errors from addresses close
to each other - then an uncorrected error which causes the panic.

The DIMM is in socket 0, channel 3 ... but if you have more than one DIMM
in channel 3 you'll have to try each in turn to see which is causing the problem
(or compile and load drivers/edac/sb_edac.c to see if it gives you a
more precise
location).

-Tony
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