Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753368AbaKJQLB (ORCPT ); Mon, 10 Nov 2014 11:11:01 -0500 Received: from relay.parallels.com ([195.214.232.42]:34585 "EHLO relay.parallels.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751399AbaKJQLA (ORCPT ); Mon, 10 Nov 2014 11:11:00 -0500 Message-ID: <1415635836.474.24.camel@tkhai> Subject: Re: [PATCH v4] sched/numa: fix unsafe get_task_struct() in task_numa_assign() From: Kirill Tkhai To: Peter Zijlstra CC: Sasha Levin , , "Oleg Nesterov" , Ingo Molnar , "Vladimir Davydov" , Kirill Tkhai Date: Mon, 10 Nov 2014 19:10:36 +0300 In-Reply-To: <20141110160320.GA10501@worktop.programming.kicks-ass.net> References: <1413962231.19914.130.camel@tkhai> <545D928B.2070508@oracle.com> <20141110160320.GA10501@worktop.programming.kicks-ass.net> Organization: Parallels Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.8.5-2+b3 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Originating-IP: [10.30.26.172] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org В Пн, 10/11/2014 в 17:03 +0100, Peter Zijlstra пишет: > On Fri, Nov 07, 2014 at 10:48:27PM -0500, Sasha Levin wrote: > > [ 829.539183] BUG: spinlock recursion on CPU#10, trinity-c594/11067 > > [ 829.539203] lock: 0xffff880631dd6b80, .magic: dead4ead, .owner: trinity-c594/11067, .owner_cpu: 13 > > Ooh, look at that. CPU#10 vs .owner_cpu: 13 on the _same_ task. > > One of those again :/ We do not initialyse task_struct::numa_preferred_nid for INIT_TASK. It there no a problem? -- 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/