From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0b-00082601.pphosted.com ([67.231.153.30]:38994 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1757998AbaHZNCk (ORCPT ); Tue, 26 Aug 2014 09:02:40 -0400 Message-ID: <53FC855F.2060904@fb.com> Date: Tue, 26 Aug 2014 09:02:23 -0400 From: Chris Mason MIME-Version: 1.0 To: Martin Steigerwald CC: Liu Bo , linux-btrfs Subject: Re: [PATCH v3] Btrfs: fix task hang under heavy compressed write References: <1407829499-21902-1-git-send-email-bo.li.liu@oracle.com> <1408117013-305-1-git-send-email-bo.li.liu@oracle.com> <53FB4F05.6050801@fb.com> <5413015.p5ELBzGdTR@merkaba> In-Reply-To: <5413015.p5ELBzGdTR@merkaba> Content-Type: text/plain; charset="UTF-8" Sender: linux-btrfs-owner@vger.kernel.org List-ID: On 08/26/2014 06:20 AM, Martin Steigerwald wrote: > Am Montag, 25. August 2014, 10:58:13 schrieb Chris Mason: >> On 08/15/2014 11:36 AM, Liu Bo wrote: >>> This has been reported and discussed for a long time, and this hang occurs >>> in both 3.15 and 3.16. >> >> [ great description ] >> >> I ran this through tests last week, and an overnight test over the >> weekend. It's in my for-linus branch now, along with everything else I >> plan on sending for rc3. >> >> Please double check my merge, I had to undo your rebase onto Miao's patches. > > I would like to test this on 3.17-rc2, what do I need to do to make it apply > cleanly? That function in disk-io.c looks quite different from what the patch > assumes at the beginning, so I am not sure how to merge this. You can just pull my for-linus branch, Liu Bo's fix is on top. -chris