Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753281AbaAVTM6 (ORCPT ); Wed, 22 Jan 2014 14:12:58 -0500 Received: from ud10.udmedia.de ([194.117.254.50]:36500 "EHLO mail.ud10.udmedia.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752331AbaAVTM4 (ORCPT ); Wed, 22 Jan 2014 14:12:56 -0500 Date: Wed, 22 Jan 2014 20:12:54 +0100 From: Markus Trippelsdorf To: Peter Zijlstra Cc: Sasha Levin , Arjan van de Ven , lenb@kernel.org, rjw@rjwysocki.net, Eliezer Tamir , rui.zhang@intel.com, jacob.jun.pan@linux.intel.com, Mike Galbraith , Ingo Molnar , hpa@zytor.com, paulmck@linux.vnet.ibm.com, Thomas Gleixner , John Stultz , Andy Lutomirski , linux-kernel@vger.kernel.org, dyoung@redhat.com Subject: Re: [PATCH 13/15] sched: Use a static_key for sched_clock_stable Message-ID: <20140122191254.GA390@x4> References: <20140122104532.GJ31570@twins.programming.kicks-ass.net> <20140122120048.GB389@x4> <20140122120757.GL31570@twins.programming.kicks-ass.net> <20140122122609.GA392@x4> <20140122123022.GN31570@twins.programming.kicks-ass.net> <20140122131456.GA389@x4> <52DFD50E.800@oracle.com> <20140122183538.GA389@x4> <20140122184253.GN30183@twins.programming.kicks-ass.net> <20140122190905.GA391@x4> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140122190905.GA391@x4> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2014.01.22 at 20:09 +0100, Markus Trippelsdorf wrote: > On 2014.01.22 at 19:42 +0100, Peter Zijlstra wrote: > > On Wed, Jan 22, 2014 at 07:35:38PM +0100, Markus Trippelsdorf wrote: > > > > > >FYI it happens on real hardware on my machine: > > > > > >[ 60.375384] process: using AMD E400 aware idle routine > > > > > But this is a different issue. I've bisected it to: > > > > > > commit 20d1c86a57762f0a33a78988e3fc8818316badd4 > > > Author: Peter Zijlstra > > > Date: Fri Nov 29 15:40:29 2013 +0100 > > > > > > sched/clock, x86: Rewrite cyc2ns() to avoid the need to disable IRQs > > > > > > Reverting the commit "fixes" the issue: > > > > Hurm.. > > Turns out the fix is simple: No. It isn't. I've tested the wrong kernel. Please ignore. Thanks. -- Markus -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/