From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from magic.merlins.org ([209.81.13.136]:58227 "EHLO mail1.merlins.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752896AbaF0UkO (ORCPT ); Fri, 27 Jun 2014 16:40:14 -0400 Received: from svh-gw.merlins.org ([173.11.111.145]:43025 helo=legolas.merlins.org) by mail1.merlins.org with esmtpsa (Cipher TLS1.2:DHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.80 #2) id 1X0cwI-00063R-Bk by authid with srv_auth_plain for ; Fri, 27 Jun 2014 13:40:14 -0700 Received: from merlin by legolas.merlins.org with local (Exim 4.80) (envelope-from ) id 1X0cwH-0003il-DE for linux-btrfs@vger.kernel.org; Fri, 27 Jun 2014 13:40:05 -0700 Date: Fri, 27 Jun 2014 13:40:05 -0700 From: Marc MERLIN To: linux-btrfs@vger.kernel.org Message-ID: <20140627204005.GB28692@merlins.org> References: <20140627185009.GA21428@merlins.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20140627185009.GA21428@merlins.org> Subject: Re: Also seeing full deadlocks with 3.15.1 Sender: linux-btrfs-owner@vger.kernel.org List-ID: On Fri, Jun 27, 2014 at 11:50:09AM -0700, Marc MERLIN wrote: > My laptop deadlocked some more times (everything works until it needs to > touch the filesystem, and then it's deadlocked). > Unfortunately, I can trigger sysrq, but it doesn't get committed to disk and > netconsole eats half of it because it goes too fast for UDP apparently > > Now, I just captured that on my server with serial console. > > 11005 1-16:11:10 wait_current_trans.isra.15 /usr/bin/zma -m 3 > 14441 1-16:07:44 wait_current_trans.isra.15 /usr/bin/zma -m 1 > 17045 1-23:53:33 wait_current_trans.isra.15 /usr/bin/zma -m 9 > 22261 2-00:40:36 wait_current_trans.isra.15 /usr/bin/zma -m 6 > 22292 2-00:40:36 wait_current_trans.isra.15 /usr/bin/zma -m 8 > > 19911 09:29:35 wait_current_trans.isra.15 rm -f -- /mnt/dshelf2/backup/0Notmachines/mysql//mysql.daily.sql.gz.13 /mnt/dshelf2/backup/0Notmachines/mysql//mysql.daily.sql.gz.13.gz > 22848 1-05:18:35 wait_current_trans.isra.15 rm -f -- mnt/dshelf2/backup/0Notmachines/jen//backup.tar.bz.11 mnt/dshelf2/backup/0Notmachines/jen//backup.tar.bz.11.gz > > Those are 2 different filesystems (one single device mapper disk, the other one is btrfs raid1), so I'm not sure which one of the 2 caused the problem, but I'm perplexed as to why one would than hang the other, unless they both hit the same bug? Ok, soon after reboot, I'm already seeing this: 742 37:19 wait_current_trans.isra.15 /usr/bin/zma -m 9 5494 06:45 wait_current_trans.isra.15 /bin/rm -rf 1/14/06/27/13/10/18 11258 01:48:28 wait_current_trans.isra.15 /usr/bin/zma -m 3 14076 27:01 wait_current_trans.isra.15 /usr/bin/zma -m 1 21615 47:18 wait_current_trans.isra.15 /usr/bin/zma -m 8 on this filesystem: gargamel:~# btrfs fi df /mnt/btrfs_raid0/ Data, RAID0: total=1.47TiB, used=892.25GiB Data, single: total=8.00MiB, used=7.95MiB System, RAID1: total=8.00MiB, used=128.00KiB System, single: total=4.00MiB, used=0.00 Metadata, RAID1: total=15.00GiB, used=6.09GiB Metadata, single: total=8.00MiB, used=0.00 unknown, single: total=512.00MiB, used=64.00KiB If I don't hear anything by the end of today, I'll just delete the filesystem and start over. Marc -- "A mouse is a device used to point at the xterm you want to type in" - A.S.R. Microsoft is to operating systems .... .... what McDonalds is to gourmet cooking Home page: http://marc.merlins.org/ | PGP 1024R/763BE901