linux-kernel - Re: [perfmon] Re: [PATCH 1/2] Separate the performance counter allocation from the LAPIC NMI watchdog

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Message-ID: <20070620183315.GA3251@atjola.homenet>
Date:	Wed, 20 Jun 2007 20:33:15 +0200
From:	Björn Steinbrink <B.Steinbrink@....de>
To:	Andi Kleen <ak@...e.de>
Cc:	eranian@....hp.com, mingo@...e.hu, linux-kernel@...r.kernel.org,
	levon@...ementarian.org, perfmon@...ali.hpl.hp.com,
	oprofile-list@...ts.sourceforge.net, wcohen@...hat.com,
	akpm@...ux-foundation.org
Subject: Re: [perfmon] Re: [PATCH 1/2] Separate the performance counter allocation from the LAPIC NMI watchdog

On 2007.06.20 15:01:02 +0200, Andi Kleen wrote:
> 
> > Once this is fixed (which is what Bjorn did), then I will agree with you.
> > For this, the allocator needs to be able to probe the CPU and initialize
> > its own data structures.
> 
> Ok that sounds reasonable. Please someone send a patch that does only 
> that.

OK, here come the bugfixes without any restructuring. The first patch
enables unconditional probing of the watchdog. The second makes the
perfmon nmi watchdog reserve the correct perfctr/evntsel.

Björn
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