From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751226AbdAQSNZ (ORCPT ); Tue, 17 Jan 2017 13:13:25 -0500 Received: from mga07.intel.com ([134.134.136.100]:5497 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750932AbdAQSNY (ORCPT ); Tue, 17 Jan 2017 13:13:24 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.33,245,1477983600"; d="scan'208";a="923595220" Subject: Re: linux-next 0112 tree breaks fs DAX To: Stephen Rothwell , Xiong Zhou References: <20170113101641.3jecr5qx2pgajc2k@XZHOUW.usersys.redhat.com> <20170116092916.lltpfa24gzlj3hkr@XZHOUW.usersys.redhat.com> <20170116214543.1388c2e9@canb.auug.org.au> <833df5ca-39a5-f402-fcd1-985217a55a85@intel.com> Cc: linux-nvdimm@ml01.01.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-next@vger.kernel.org, Andrew Morton , "Zwisler, Ross" From: Dave Jiang Message-ID: <711fc876-c805-8483-a6af-f4e3c8369084@intel.com> Date: Tue, 17 Jan 2017 11:13:22 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.6.0 MIME-Version: 1.0 In-Reply-To: <833df5ca-39a5-f402-fcd1-985217a55a85@intel.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 01/17/2017 09:05 AM, Dave Jiang wrote: > On 01/16/2017 03:45 AM, Stephen Rothwell wrote: >> Hi Xiong, >> >> Just cc'ing Andrew. >> >> On Mon, 16 Jan 2017 17:29:16 +0800 Xiong Zhou wrote: >>> >>> On Fri, Jan 13, 2017 at 06:16:41PM +0800, Xiong Zhou wrote: >>>> Hi, >>>> >>>> These cases "hang" when testing with -o dax mount option: >>>> xfstests generic/030 generic/34{0,4,5,6} generic/198 >>>> (maybe more) >>>> >>>> The test programme holetest or aiodio keep running for a >>>> long time. It's killable, but it seems never return. >>>> >>>> With both ext4 and xfs as fs. >>>> >>>> Without -o dax mount option, cases pass in seconds. >>>> >>>> 0111 tree passed the tests. >>>> >>>> sh-4.2# git log --oneline next-20170111..next-20170112 fs/dax.c >>>> 0c9a7909dd13 mm, dax: change pmd_fault() to take only vmf parameter >>>> f8dbc198d4ea mm, dax: make pmd_fault() and friends be the same as fault() >>> >>> 0112 tree with above 2 commits reverted pass the tests. >> > > Thanks. I will debug. > Xiong, I think I reproduced the issue, but only on the second commit 0c9a7909dd13 and not the first one f8dbc198d4ea. Can you please confirm that "f8dbc198d4ea mm, dax: make pmd_fault() and friends be the same as fault()" is ok or the failure starts with that? Thanks!