linux-kernel - Re: nmi_watchdog=2 regression in 2.6.21

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Message-ID: <20070828091217.GA1645@frankl.hpl.hp.com>
Date:	Tue, 28 Aug 2007 02:12:17 -0700
From:	Stephane Eranian <eranian@....hp.com>
To:	Daniel Walker <dwalker@...sta.com>
Cc:	Björn Steinbrink <B.Steinbrink@....de>,
	ak@...e.de, linux-kernel@...r.kernel.org, akpm@...ux-foundation.org
Subject: Re: nmi_watchdog=2 regression in 2.6.21

Daniel,

On Mon, Aug 27, 2007 at 04:07:54PM -0700, Daniel Walker wrote:
> On Mon, 2007-08-27 at 15:55 -0700, Stephane Eranian wrote:
> 
> > Yet the model name looks strange. So we need to run one more test,
> > as the fam/model is not enough. What we need to check is whether or
> > not this processor implements architectural perfmon or not.
> > 
> > Could you please compile and run the attached program and send me 
> > the output?
> 
> The output below is all the output ..
> 
> eax=0x7280201: version=1  num_cnt=2
> 
Then you have a Core Duo processor and the commit from Bjorn should
fix the problem. If it does not, then there is something else wrong.
Unfortunately, I do not have a Core Duo machine to try and reproduce.

-- 

-Stephane
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