linux-kernel - Re: [PATCH] perf/x86: check ucode before disabling PEBS on SandyBridge

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Message-ID: <1339576681.31548.116.camel@twins>
Date:	Wed, 13 Jun 2012 10:38:01 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Borislav Petkov <bp@...64.org>,
	Stephane Eranian <eranian@...gle.com>,
	linux-kernel@...r.kernel.org, andi@...stfloor.org, mingo@...e.hu,
	ming.m.lin@...el.com, "Yu, Fenghua" <fenghua.yu@...el.com>
Subject: Re: [PATCH] perf/x86: check ucode before disabling PEBS on
 SandyBridge

On Tue, 2012-06-12 at 13:58 -0700, H. Peter Anvin wrote:
>  even things like Nehalem + Westmere in the same system

Uhm,.. how well do you expect Linux to run on a franken-system like
that? I'm pretty sure perf will malfunction in such a setup.
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