Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753788AbcJDQ6c (ORCPT ); Tue, 4 Oct 2016 12:58:32 -0400 Received: from mx1.redhat.com ([209.132.183.28]:33252 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751872AbcJDQ6a (ORCPT ); Tue, 4 Oct 2016 12:58:30 -0400 Date: Tue, 4 Oct 2016 18:58:27 +0200 From: Oleg Nesterov To: Dave Chinner Cc: Jan Kara , Al Viro , Nikolay Borisov , "Paul E. McKenney" , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, fstests@vger.kernel.org Subject: Re: [PATCH V2 2/2] fs/super.c: don't fool lockdep in freeze_super() and thaw_super() paths Message-ID: <20161004165826.GA10239@redhat.com> References: <20160926160724.GA6739@redhat.com> <20160926160806.GB6748@redhat.com> <20160926161856.GB32458@quack2.suse.cz> <20160926165525.GA9338@redhat.com> <20160927065135.GA1139@quack2.suse.cz> <20160927172901.GA11879@redhat.com> <20160930171434.GA2373@redhat.com> <20161002214225.GS9806@dastard> <20161003164435.GB6634@redhat.com> <20161004114341.GA8572@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20161004114341.GA8572@redhat.com> User-Agent: Mutt/1.5.24 (2015-08-30) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Tue, 04 Oct 2016 16:58:29 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1135 Lines: 30 On 10/04, Oleg Nesterov wrote: > > This time it hangs after generic/274: > > --- tests/generic/274.out 2016-10-04 04:23:24.209006171 -0400 > +++ /root/XFS/xfstests-dev/results//generic/274.out.bad 2016-10-04 05:17:49.291742498 -0400 > @@ -3,3 +3,4 @@ > preallocation test > ------------------------------ > done > +./common/rc: line 344: 4693 Segmentation fault exit > ... > (Run 'diff -u tests/generic/274.out /root/XFS/xfstests-dev/results//generic/274.out.bad' to see the entire diff) > > because of kernel bug: > > [ 2730.242537] run fstests generic/274 at 2016-10-04 05:17:34 > [ 2730.738352] XFS (loop1): Mounting V5 Filesystem > [ 2730.741451] XFS (loop1): Ending clean mount > [ 2744.508698] ------------[ cut here ]------------ > [ 2744.509190] kernel BUG at ./include/linux/swap.h:276! I removed this test and then the next run (after reboot) hangs at xfs/073 with a lot of errors in dmesg like XFS (loop2): Failing async write on buffer block 0x9600790. Retrying async write. blk_update_request: I/O error, dev loop2, sector 8389920 loop: Write error at byte offset 4295647232, length 4096. Oleg.