linux-kernel - Re: [PATCH 1/2] perf: ignore LBR and offcore

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Message-ID: <87lhsu8arx.fsf@tassilo.jf.intel.com>
Date:	Wed, 18 Jun 2014 09:04:02 -0700
From:	Andi Kleen <andi@...stfloor.org>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	"Liang\, Kan" <kan.liang@...el.com>,
	"linux-kernel\@vger.kernel.org" <linux-kernel@...r.kernel.org>,
	"kvm\@vger.kernel.org" <kvm@...r.kernel.org>,
	"Kleen\, Andi" <andi.kleen@...el.com>
Subject: Re: [PATCH 1/2] perf: ignore LBR and offcore_rsp.

Peter Zijlstra <peterz@...radead.org> writes:
>
> This order indicates Andi is the author; but there's no corresponding
> From.

I wrote an early version of the patch, but Kan took it over and extended
it. So both are authors.

BTW Kan you may want to use git send-email to get standard format.

>
>>     Signed-off-by: Kan Liang <kan.liang@...el.com>
>
> And here I thought that Andi was of the opinion that if you set CPUID to
> indicate a particular CPU you had better also handle all its MSRs.

Yes, philosophically that would be the right way,
but we needed a short term fix to stop things from crashing, and that
was the simplest.

-Andi
-- 
ak@...ux.intel.com -- Speaking for myself only
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