linux-kernel - Re: linux-2.6.28-rc2 regression : oprofile doesnt work anymore ?

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Message-ID: <20081107160553.GR29626@one.firstfloor.org>
Date:	Fri, 7 Nov 2008 17:05:53 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Eric Dumazet <dada1@...mosbay.com>
Cc:	Andi Kleen <andi@...stfloor.org>, Ingo Molnar <mingo@...e.hu>,
	Pekka J Enberg <penberg@...helsinki.fi>,
	Robert Richter <robert.richter@....com>,
	linux kernel <linux-kernel@...r.kernel.org>,
	Andi Kleen <ak@...ux.intel.com>
Subject: Re: linux-2.6.28-rc2 regression : oprofile doesnt work anymore ?

On Fri, Nov 07, 2008 at 04:13:42PM +0100, Eric Dumazet wrote:
> Andi Kleen a écrit :
> >Can you please test this patch and see if it solves the problem?
> >
> >Thanks,
> >-Andi
> >
> >---
> >
> >oprofile: Fix p6 counter overflow check
> >
> >Fix the counter overflow check for CPUs with counter width > 32
> >
> >I had a similar change in a different patch that I didn't submit
> >and I didn't notice the problem earlier because it was always
> >tested together.
> >
> >Signed-off-by: Andi Kleen <ak@...ux.intel.com>
> >
> 
> Thanks Andi
> 
> Unfortunatly, there is still a freeze of NMIS after a while.

How long is the while?

I don't see this here on a Merom when I let it run for
10 minutes or so.

You might need to bisect it.

-Andi
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