From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759015Ab2EIMgN (ORCPT ); Wed, 9 May 2012 08:36:13 -0400 Received: from mx1.redhat.com ([209.132.183.28]:41739 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752687Ab2EIMgL (ORCPT ); Wed, 9 May 2012 08:36:11 -0400 Message-ID: <4FAA64A7.6060203@redhat.com> Date: Wed, 09 May 2012 14:35:51 +0200 From: Igor Mammedov User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:12.0) Gecko/20120430 Thunderbird/12.0.1 MIME-Version: 1.0 To: Peter Zijlstra CC: Jiang Liu , linux-kernel@vger.kernel.org, mingo@kernel.org, pjt@google.com, tglx@linutronix.de, seto.hidetoshi@jp.fujitsu.com Subject: Re: [PATCH] sched_groups are expected to be circular linked list, make it so right after allocation References: <1336559908-32533-1-git-send-email-imammedo@redhat.com> <4FAA452A.1070909@gmail.com> <4FAA588B.5010404@redhat.com> <1336564330.2527.23.camel@twins> <4FAA5BFB.40309@redhat.com> <1336566096.2527.30.camel@twins> <1336566178.2527.31.camel@twins> In-Reply-To: <1336566178.2527.31.camel@twins> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 05/09/2012 02:22 PM, Peter Zijlstra wrote: > On Wed, 2012-05-09 at 14:21 +0200, Peter Zijlstra wrote: >> Does something like the below give any clues as to how we got there? > > I'm assuming you've got means of reproducing this? Yep, it reproduces several times a day. I'll retest with your patch. -- ----- Igor