From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cn.fujitsu.com ([59.151.112.132]:23852 "EHLO heian.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1753759AbdFWIyF (ORCPT ); Fri, 23 Jun 2017 04:54:05 -0400 Subject: Re: How to fix errors that check --mode lomem finds, but --mode normal doesn't? To: Marc MERLIN CC: Qu Wenruo , Chris Murphy , Hugo Mills , Btrfs BTRFS References: <20170620152648.GB22987@merlins.org> <20170620153601.GE7140@carfax.org.uk> <20170620154429.GC22987@merlins.org> <20170620231202.GB5303@merlins.org> <20170621034352.GE5303@merlins.org> <20170621151339.GK5303@merlins.org> <13856431-9ee5-c13e-f2a8-860394f9aae4@cn.fujitsu.com> <20170622025330.GX5303@merlins.org> <20170623040601.akpyyvh3dgry6nn5@merlins.org> From: Lu Fengqi Message-ID: <90711a7c-92ff-e043-6d81-6bdadbfdbc3a@cn.fujitsu.com> Date: Fri, 23 Jun 2017 16:54:01 +0800 MIME-Version: 1.0 In-Reply-To: <20170623040601.akpyyvh3dgry6nn5@merlins.org> Content-Type: text/plain; charset="utf-8"; format=flowed Sender: linux-btrfs-owner@vger.kernel.org List-ID: On 2017年06月23日 12:06, Marc MERLIN wrote: >> Well, there is only the output from extent tree. >> >> I was also expecting output from subvolue (11930) tree. >> >> It could be done by >> # btrfs-debug-tree -t 11930 | grep -C 10 3886187384832 >> I apologize if this was not made clear. >> But please pay attention that, this dump may contain filenames, feel free to >> mask the filenames. > > There you go: > gargamel:~# btrfs-debug-tree /dev/mapper/dsh | grep -C 10 3886187384832 Could you dump file tree (11930) by the following command. # btrfs-debug-tree -t 11930 /dev/mapper/dsh | grep -C 10 3886187384832 I wonder if this extent was referenced by this file tree four times. Hoping that this will not cause you too much trouble. -- Thanks, Lu