linux-kernel - Re: tbench regression with 2.6.33-rc1

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Date:	Sun, 27 Dec 2009 10:41:23 +0100
From:	Mike Galbraith <efault@....de>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Lin Ming <ming.m.lin@...el.com>, mingo@...e.hu, tglx@...utronix.de,
	linux-kernel <linux-kernel@...r.kernel.org>,
	"Zhang, Yanmin" <yanmin_zhang@...ux.intel.com>,
	Frédéric Weisbecker <fweisbec@...il.com>
Subject: Re: tbench regression with 2.6.33-rc1

On Sun, 2009-12-27 at 09:59 +0100, Peter Zijlstra wrote:
> On Sun, 2009-12-27 at 09:32 +0100, Mike Galbraith wrote:
> > Perf also isn't free, and in 33, we lost the ability to config it out,
> 
> Uhm, that's a plain bug, we should be able to build a kernel without
> perf support, does the hw breakpoint support have an unfortunate select
> some place or something?

Yeah, it's selected in arch/x86/Kconfig.  The kernel won't build without
it either.

	-Mike

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