From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f69.google.com (mail-wm0-f69.google.com [74.125.82.69]) by kanga.kvack.org (Postfix) with ESMTP id 55CF96B007E for ; Mon, 25 Apr 2016 10:34:17 -0400 (EDT) Received: by mail-wm0-f69.google.com with SMTP id r12so43061480wme.0 for ; Mon, 25 Apr 2016 07:34:17 -0700 (PDT) Received: from mail-wm0-f49.google.com (mail-wm0-f49.google.com. [74.125.82.49]) by mx.google.com with ESMTPS id j123si8998656wmb.118.2016.04.25.07.34.16 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 25 Apr 2016 07:34:16 -0700 (PDT) Received: by mail-wm0-f49.google.com with SMTP id u206so130732299wme.1 for ; Mon, 25 Apr 2016 07:34:16 -0700 (PDT) Date: Mon, 25 Apr 2016 16:34:13 +0200 From: Michal Hocko Subject: Re: [PATCH 0/3] mainline and mmotm compaction fixes Message-ID: <20160425143413.GJ23933@dhcp22.suse.cz> References: <1461591269-28615-1-git-send-email-vbabka@suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1461591269-28615-1-git-send-email-vbabka@suse.cz> Sender: owner-linux-mm@kvack.org List-ID: To: Vlastimil Babka Cc: Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Joonsoo Kim , Hugh Dickins , Rik van Riel On Mon 25-04-16 15:34:26, Vlastimil Babka wrote: [...] > > 1. Fix crash in release_pages() from compact_zone() from kcompactd_do_work(): > > kcompactd needs to INIT_LIST_HEAD on the new freepages_held list. > > This one should be addressed by dropping the following from mmotm from now: > > mm-compaction-direct-freepage-allocation-for-async-direct-compaction.patch I can confirm that this has healed [ 481.380167] BUG: unable to handle kernel NULL pointer dereference at (null) [ 481.382594] IP: [] release_freepages+0x1c/0x7d I was hitting today during testing something unrelated. -- Michal Hocko SUSE Labs -- 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