linux-kernel - Re: 50 Watt idle power regression bisected to Linux-3.10

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Message-ID: <20131211115239.GA21999@twins.programming.kicks-ass.net>
Date:	Wed, 11 Dec 2013 12:52:39 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Borislav Petkov <bp@...en8.de>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Mike Galbraith <bitbucket@...ine.de>,
	Len Brown <lenb@...nel.org>,
	Linux PM list <linux-pm@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Jeremy Eder <jeder@...hat.com>, x86@...nel.org
Subject: Re: 50 Watt idle power regression bisected to Linux-3.10

On Wed, Dec 11, 2013 at 12:38:39PM +0100, Borislav Petkov wrote:
> Right, if it turns out that this is really the case and that this
> erratum hasn't been fixed for models later than 29 - we'd need the
> additional model numbers to set X86_FEATURE_CLFLUSH_MONITOR correctly.

You also need: https://lkml.org/lkml/2013/11/19/143

Because obviously not all mwait idle loops check that cpu bit.
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