Date: Tue, 1 Feb 2011 13:41:10 -0500
From: Don Zickus <dzickus@redhat.com>
To: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: George Spelvin <linux@horizon.com>, linux-kernel@vger.kernel.org,
        Ingo Molnar <mingo@elte.hu>, Peter Zijlstra <a.p.zijlstra@chello.nl>,
        Lin Ming <ming.m.lin@intel.com>, Stephane Eranian <eranian@google.com>
Subject: Re: 2.6.38-rc2: Uhhuh. NMI received for unknown reason 2d on CPU 0.
Message-ID: <20110201184110.GB21209@redhat.com>
References: <20110201162703.2284.qmail@science.horizon.com>
 <4D484853.9020409@gmail.com>
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On Tue, Feb 01, 2011 at 08:52:19PM +0300, Cyrill Gorcunov wrote:
> On 02/01/2011 07:27 PM, George Spelvin wrote:
> > Since upgrading to -rc2 (-rc3 is compiling right now), I've been getting
> > complaints at irregular intervals.  This didn't used to happen with 2.6.37.
> > 
> ...
> > Should I bisect this, or does someone know what might be happening?
> > 
> > Thank you!
> > 
> 
>  I fear it's known issue at moment, we're trying to resolve it. There is
> an option -- to disable nmi_watchdog (nmi_watchdog=0 boot option).
> 
>  But if you have a will or would like to help debug the problem -- mind to
> try the patch below? Note the patch is ugly at moment and must *not* be
> running on non-P4 system (and I only compile-tested it so no guarantees
> at all, and I've CC'ed a couple of people as well)

Unfortunately, I have not had success with patch below on my system. :-(

Cheers,
Don
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