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Subject: Re: [PATCH 5/5] oprofile, x86: Reimplement nmi timer mode using perf
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Robert Richter <robert.richter@amd.com>
Cc: Ingo Molnar <mingo@elte.hu>, LKML <linux-kernel@vger.kernel.org>,
        oprofile-list <oprofile-list@lists.sourceforge.net>
Date: Tue, 18 Oct 2011 12:59:41 +0200
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On Mon, 2011-10-17 at 16:27 +0200, Robert Richter wrote:
> The legacy x86 nmi watchdog code was removed with the implementation
> of the perf based nmi watchdog. This broke Oprofile's nmi timer
> mode. To run nmi timer mode we relied on a continuous ticking nmi
> source which the nmi watchdog provided. The nmi tick was no longer
> available and current watchdog can not be used anymore since it runs
> with very long periods in the range of seconds. This patch
> reimplements the nmi timer mode using a perf counter nmi source.

fair enough,

Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>

I take it you'll take this through your oprofile tree?