From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from magic.merlins.org ([209.81.13.136]:46398 "EHLO mail1.merlins.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750898AbcBLR0v (ORCPT ); Fri, 12 Feb 2016 12:26:51 -0500 Date: Fri, 12 Feb 2016 09:26:28 -0800 From: Marc MERLIN To: Qu Wenruo Cc: David Sterba , Btrfs mailing list Subject: Re: btrfs-image failure (btrfs-tools 4.4) Message-ID: <20160212172628.GJ2763@merlins.org> References: <20160123170354.GA10113@merlins.org> <56A57C59.1040203@cn.fujitsu.com> <20160125205500.GK23751@merlins.org> <56A6C5CB.5060406@cn.fujitsu.com> <20160211063132.GX13969@merlins.org> <56BC355F.1080305@cn.fujitsu.com> <20160211150947.GY13969@merlins.org> <20160211151339.GZ13969@merlins.org> <56BD2847.8070403@cn.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <56BD2847.8070403@cn.fujitsu.com> Sender: linux-btrfs-owner@vger.kernel.org List-ID: On Fri, Feb 12, 2016 at 08:33:11AM +0800, Qu Wenruo wrote: > There is still a last chance. > > If btrfsck still report original error about "bad file extent" in root: > 45851/45852/... > Btrfs-debug-tree may provide useful info by dumping only that root. > > # btrfs-debug-tree -t 45851 > > But the problem is, there is no filename fuzz option. > You need to mask all the filenames in INODE_REF/DIR_ITEM/DIR_INDEX by > script, or just grep the affected inode info following the pattern "key > (". > > At least this should tell us what's the problem and we can check > manually to determine if it's fixable. Mmmh, so the fsck is looking a bit worse now, here is the output: http://marc.merlins.org/tmp/ggm-broken-ds1-fsck.txt I'm not super sure what inode I should use for debug tree. Can you suggest one? I ran the dump gargamel:~# btrfs-image -s -c 9 /dev/mapper/dshelf1old /mnt/dshelf1/ds1old.dump Error adding space cache blocks -5 Error flushing pending -5 create failed (Success) and a du every so often showed the file go to 9.3GB before btrfs-image deleted it: 9.3G /mnt/dshelf1/ds1old.dump 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/