From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.5 required=3.0 tests=MAILING_LIST_MULTI,SPF_PASS, URIBL_BLOCKED,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DA2E8ECE561 for ; Tue, 25 Sep 2018 07:31:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9B062214C1 for ; Tue, 25 Sep 2018 07:31:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9B062214C1 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728896AbeIYNiA (ORCPT ); Tue, 25 Sep 2018 09:38:00 -0400 Received: from mx2.suse.de ([195.135.220.15]:41416 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727588AbeIYNiA (ORCPT ); Tue, 25 Sep 2018 09:38:00 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id E2F95AFDC; Tue, 25 Sep 2018 07:31:45 +0000 (UTC) Date: Tue, 25 Sep 2018 09:31:45 +0200 From: Michal Hocko To: Rong Chen Cc: lkp@01.org, 0day robot , LKML Subject: Re: [LKP] [mm, oom] 6209f6fc62: general_protection_fault:#[##] Message-ID: <20180925073145.GO18685@dhcp22.suse.cz> References: <20180925054820.GC27173@shao2-debian> <20180925060653.GN18685@dhcp22.suse.cz> <084cf8cd-f384-8694-16c0-d1e2abfb9099@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <084cf8cd-f384-8694-16c0-d1e2abfb9099@intel.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue 25-09-18 15:00:15, Rong Chen wrote: > > > On 09/25/2018 02:06 PM, Michal Hocko wrote: > > On Tue 25-09-18 13:48:20, kernel test robot wrote: > > > FYI, we noticed the following commit (built with gcc-7): > > > > > > commit: 6209f6fc62835d84c2a92d237588a114e39436ce ("mm, oom: rework mmap_exit vs. oom_reaper synchronization") > > > https://github.com/0day-ci/linux UPDATE-20180911-024633/Tetsuo-Handa/mm-oom-Fix-unnecessary-killing-of-additional-processes/20180910-163452 > > Do you have a msg-id to the patch that has been tested? > > message_id: 20180910125513.311-2-mhocko@kernel.org Thanks! It woudl be really great if this was a part of the report when testing patches which are not mainline yet. This patch resulting in a crash is quite surprising. The patch is RFC and not tested yet but I will definitely have a look. Could you help me some more and give faddr2line __oom_reap_task_mm+0x40 please? -- Michal Hocko SUSE Labs