linux-kernel - Re: [PATCH -v3] perf, x86: try to handle unknown nmis with running perfctrs

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Message-ID: <20100819152053.GP4879@redhat.com>
Date:	Thu, 19 Aug 2010 11:20:53 -0400
From:	Don Zickus <dzickus@...hat.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Robert Richter <robert.richter@....com>,
	Cyrill Gorcunov <gorcunov@...il.com>,
	Lin Ming <ming.m.lin@...el.com>, Ingo Molnar <mingo@...e.hu>,
	"fweisbec@...il.com" <fweisbec@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Huang, Ying" <ying.huang@...el.com>,
	Yinghai Lu <yinghai@...nel.org>,
	Andi Kleen <andi@...stfloor.org>
Subject: Re: [PATCH -v3] perf, x86: try to handle unknown nmis with running
 perfctrs

On Thu, Aug 19, 2010 at 04:27:13PM +0200, Peter Zijlstra wrote:
> On Thu, 2010-08-19 at 10:12 -0400, Don Zickus wrote:
> > On Thu, Aug 19, 2010 at 12:45:53PM +0200, Peter Zijlstra wrote:
> > > 
> > > I queued it with that part changed to:
> > 
> > I realized the other day this change doesn't cover the nehalem, core and p4
> > cases which use
> > 
> > intel_pmu_handle_irq
> > p4_pmu_handle_irq
> > 
> > as their handlers.  Though that patch can go on top of Robert's.
> 
> Something like this?

Looks correct.  I'll try to test the perf_event_intel.c path though I
haven't had much luck getting multiple events on the nehalem box I have
(the amd box was easy).

Cheers,
Don
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