From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qk0-f199.google.com (mail-qk0-f199.google.com [209.85.220.199]) by kanga.kvack.org (Postfix) with ESMTP id ABC026B0038 for ; Thu, 2 Mar 2017 00:19:02 -0500 (EST) Received: by mail-qk0-f199.google.com with SMTP id n127so87201919qkf.3 for ; Wed, 01 Mar 2017 21:19:02 -0800 (PST) Received: from mx1.redhat.com (mx1.redhat.com. [209.132.183.28]) by mx.google.com with ESMTPS id v34si1877256qtv.262.2017.03.01.21.19.01 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 01 Mar 2017 21:19:02 -0800 (PST) Date: Thu, 2 Mar 2017 13:19:00 +0800 From: Xiong Zhou Subject: Re: mm allocation failure and hang when running xfstests generic/269 on xfs Message-ID: <20170302051900.ct3xbesn2ku7ezll@XZHOUW.usersys.redhat.com> References: <20170301044634.rgidgdqqiiwsmfpj@XZHOUW.usersys.redhat.com> <20170302003731.GB24593@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20170302003731.GB24593@infradead.org> Sender: owner-linux-mm@kvack.org List-ID: To: Christoph Hellwig , mhocko@suse.com Cc: Xiong Zhou , linux-xfs@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org On Wed, Mar 01, 2017 at 04:37:31PM -0800, Christoph Hellwig wrote: > On Wed, Mar 01, 2017 at 12:46:34PM +0800, Xiong Zhou wrote: > > Hi, > > > > It's reproduciable, not everytime though. Ext4 works fine. > > On ext4 fsstress won't run bulkstat because it doesn't exist. Either > way this smells like a MM issue to me as there were not XFS changes > in that area recently. Yap. First bad commit: commit 5d17a73a2ebeb8d1c6924b91e53ab2650fe86ffb Author: Michal Hocko Date: Fri Feb 24 14:58:53 2017 -0800 vmalloc: back off when the current task is killed Reverting this commit on top of e5d56ef Merge tag 'watchdog-for-linus-v4.11' survives the tests. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org