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Subject: Re: [PATCH] perf_events: fix bug in hw_perf_enable()
From: Peter Zijlstra <peterz@infradead.org>
To: Stephane Eranian <eranian@google.com>
Cc: linux-kernel@vger.kernel.org, mingo@elte.hu, paulus@samba.org,
       davem@davemloft.net, fweisbec@gmail.com, robert.richter@amd.com,
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       Arjan van de Ven <arjan@linux.intel.com>,
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Date: Mon, 01 Feb 2010 19:20:22 +0100
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On Mon, 2010-02-01 at 18:56 +0100, Stephane Eranian wrote:
> On Mon, Feb 1, 2010 at 6:46 PM, Peter Zijlstra <peterz@infradead.org> wrote:
> > On Mon, 2010-02-01 at 18:23 +0100, Stephane Eranian wrote:
> >> >  244235699509090  raw 0x13c
> >> >  244235695558036  raw 0x13c
> >> >
> >> Strange. I am running mine on a Q6600.
> >> What's yours?
> >
> > These numbers came from a T9400, but my Q9450 does something similar.
> >
> Are you sure you are reading from the correct corresponding data registers?

It sure got me wondering, I'll go over that fixed counter code in
arch/x86/kernel/cpu/perf_event.c in the morning.