From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from magic.merlins.org ([209.81.13.136]:55529 "EHLO mail1.merlins.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751483AbaBXGmb (ORCPT ); Mon, 24 Feb 2014 01:42:31 -0500 Date: Sun, 23 Feb 2014 22:42:31 -0800 From: Marc MERLIN To: Wang Shilong Cc: linux-btrfs@vger.kernel.org Subject: Re: 3.13.5 kernel hangs some processes with btrfs Message-ID: <20140224064231.GD15937@merlins.org> References: <20140224061426.GB15937@merlins.org> <20140224061714.GC15937@merlins.org> <530AE662.5090303@cn.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <530AE662.5090303@cn.fujitsu.com> Sender: linux-btrfs-owner@vger.kernel.org List-ID: On Mon, Feb 24, 2014 at 02:27:46PM +0800, Wang Shilong wrote: > >Note that it says running for 5 seconds, but it started 4H ago. > > > >Any idea what's going on here? > What is dmesg output? > > Did it output something like "Skip abort transaction"? Also > what is your mount option? did you enable nodatasum etc? sh-4.1# btrfs scrub cancel /mnt/btrfs_pool2 ERROR: scrub cancel failed on /mnt/btrfs_pool2: not running sh-4.1# And no, I get nothing in dmesg. Now, what's very interesting is that I rebooted the machine, and even after rebooting, scrub is still being shown as active on 3 of my devices. sh-4.1# btrfs-scrub-status /mnt/btrfs_bigbackup scrub status for 024ba4d0-dacb-438d-9f1b-eeb34083fe49 scrub device /dev/mapper/crypt_sdl1 (id 1) history scrub started at Sun Feb 23 21:32:32 2014 and finished after 262 seconds total bytes scrubbed: 2.76GiB with 0 errors scrub device /dev/dm-6 (id 2) history scrub started at Sun Feb 23 21:32:32 2014 and finished after 249 seconds total bytes scrubbed: 2.82GiB with 0 errors scrub device /dev/dm-5 (id 3) history scrub started at Sun Feb 23 21:32:32 2014 and finished after 246 seconds total bytes scrubbed: 2.82GiB with 0 errors scrub device /dev/dm-7 (id 4) history scrub started at Sun Feb 23 21:32:32 2014 and finished after 260 seconds total bytes scrubbed: 2.75GiB with 0 errors scrub device /dev/dm-8 (id 5) history scrub started at Sun Feb 23 21:32:32 2014 and finished after 257 seconds total bytes scrubbed: 2.75GiB with 0 errors /mnt/btrfs_boot scrub status for e4c1daa8-9c39-4a59-b0a9-86297d397f3b scrub device /dev/mapper/cryptroot (id 1) history scrub started at Sun Feb 23 22:14:36 2014 and was aborted after 18 seconds total bytes scrubbed: 992.79MiB with 0 errors /mnt/btrfs_pool1 scrub status for 6358304a-2234-4243-b02d-4944c9af47d7 scrub device /dev/mapper/dshelf1 (id 1) status scrub started at Sun Feb 23 06:50:46 2014, running for 11193 seconds total bytes scrubbed: 612.31GiB with 0 errors /mnt/btrfs_pool2 scrub status for cb9df6d3-a528-4afc-9a45-4fed5ec358d6 scrub device /dev/mapper/dshelf2 (id 1) status scrub started at Sun Feb 23 18:29:39 2014, running for 5 seconds total bytes scrubbed: 0.00 with 0 errors /mnt/btrfs_raid0 scrub status for 9f46dbe2-1344-44c3-b0fb-af2888c34f18 scrub device /dev/mapper/cryptraid0 (id 1) status scrub started at Sun Feb 23 09:56:57 2014, running for 25 seconds total bytes scrubbed: 964.86MiB with 0 errors sh-4.1# sh-4.1# btrfs fi show Label: btrfs_boot uuid: e4c1daa8-9c39-4a59-b0a9-86297d397f3b Total devices 1 FS bytes used 60.83GiB devid 1 size 79.93GiB used 65.04GiB path /dev/mapper/cryptroot Label: varlocalspace uuid: 9f46dbe2-1344-44c3-b0fb-af2888c34f18 Total devices 1 FS bytes used 772.80GiB devid 1 size 1.63TiB used 780.04GiB path /dev/mapper/cryptraid0 Label: btrfs_pool1 uuid: 6358304a-2234-4243-b02d-4944c9af47d7 Total devices 1 FS bytes used 7.13TiB devid 1 size 14.55TiB used 7.50TiB path /dev/mapper/dshelf1 Label: btrfs_pool2 uuid: cb9df6d3-a528-4afc-9a45-4fed5ec358d6 Total devices 1 FS bytes used 2.89TiB devid 1 size 7.28TiB used 2.96TiB path /dev/mapper/dshelf2 Label: bigbackup uuid: 024ba4d0-dacb-438d-9f1b-eeb34083fe49 Total devices 5 FS bytes used 30.01GiB devid 1 size 1.82TiB used 6.02GiB path /dev/mapper/crypt_sdl1 devid 2 size 1.82TiB used 7.00GiB path /dev/dm-6 devid 3 size 1.82TiB used 7.00GiB path /dev/dm-5 devid 4 size 1.82TiB used 6.01GiB path /dev/dm-7 devid 5 size 1.82TiB used 6.01GiB path /dev/dm-8 Btrfs v3.12 sh-4.1# Any other ideas? Thanks, 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/