From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Zijlstra Subject: Re: 50 Watt idle power regression bisected to Linux-3.10 Date: Wed, 11 Dec 2013 12:52:39 +0100 Message-ID: <20131211115239.GA21999@twins.programming.kicks-ass.net> References: <1386478624.4748.19.camel@marge.simpson.net> <1386559014.4875.16.camel@marge.simpson.net> <1386652637.5374.72.camel@marge.simpson.net> <1386732093.5964.6.camel@marge.simpson.net> <20131211113839.GF21683@pd.tnic> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from merlin.infradead.org ([205.233.59.134]:54468 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751215Ab3LKLwz (ORCPT ); Wed, 11 Dec 2013 06:52:55 -0500 Content-Disposition: inline In-Reply-To: <20131211113839.GF21683@pd.tnic> Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: Borislav Petkov Cc: Thomas Gleixner , Mike Galbraith , Len Brown , Linux PM list , "linux-kernel@vger.kernel.org" , Jeremy Eder , x86@kernel.org 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.