From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f172.google.com ([209.85.192.172]:37579 "EHLO mail-pd0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751920AbaJJNfJ convert rfc822-to-8bit (ORCPT ); Fri, 10 Oct 2014 09:35:09 -0400 Received: by mail-pd0-f172.google.com with SMTP id ft15so1683379pdb.31 for ; Fri, 10 Oct 2014 06:35:09 -0700 (PDT) From: Wang Shilong Content-Type: text/plain; charset=GB2312 Subject: Problems running Balance and checking integrity concurrently. Date: Fri, 10 Oct 2014 21:35:02 +0800 Message-Id: <5BE1151D-599F-4FD4-BD6B-AC707C72CEC4@gmail.com> Cc: Josef Bacik , clm@fb.com, linux-btrfs To: sbehrens@giantdisaster.de Mime-Version: 1.0 (Mac OS X Mail 7.3 \(1878.6\)) Sender: linux-btrfs-owner@vger.kernel.org List-ID: HelloŁ¬ I have reproduced a problem with Btrfs integrity and balance using latest btrfs kernel,it is very easy to reproduce: With mount option ˇ°check_intˇ±, and run xfstests/btrfs/ tests, below test could definitely reproduce problem: ./check tests/btrfs/014 5.122248] Written block @25800343552 (sdc/1210187776/0) found in hash table, M, bytenr mismatch (!= stored 20968505344). [ 455.122283] Written block @25800359936 (sdc/1210204160/1) found in hash table, M, bytenr mismatch (!= stored 20968521728). [ 455.122301] Written block @25800376320 (sdc/1210220544/1) found in hash table, M, bytenr mismatch (!= stored 20968538112). [ 455.122347] Referenced block @25800343552 (sdc/1344405504/2) found in hash table, M, bytenr mismatch (!= stored 20968505344). [ 455.122427] Referenced block @25800359936 (sdc/1344421888/2) found in hash table, M, bytenr mismatch (!= stored 20968521728). [ 455.122853] Written block @25800376320 (sdc/1344438272/0) found in hash table, M, bytenr mismatch (!= stored 20968538112). [ 455.126275] BTRFS critical (device sdc): unable to find logical 3452043264 len 4096 [ 455.126491] btrfsic: btrfsic_map_block(root @3452043264) failed! [ 455.126496] BTRFS critical (device sdc): unable to find logical 3452059648 len 4096 [ 455.126769] btrfsic: btrfsic_map_block(root @3452059648) failed! [ 455.126773] BTRFS critical (device sdc): unable to find logical 3452076032 len 4096 [ 455.127007] btrfsic: btrfsic_map_block(root @3452076032) failed! [ 455.127011] BTRFS critical (device sdc): unable to find logical 3452092416 len 4096 [ 455.129864] btrfsic: btrfsic_map_block(root @3452272640) failed! [ 455.129869] BTRFS critical (device sdc): unable to find logical 3452289024 len 4096 [ 455.130113] btrfsic: btrfsic_map_block(root @3452289024) failed! [ 455.130756] BTRFS critical (device sdc): unable to find logical 3451994112 len 4096 [ 455.130984] btrfsic: btrfsic_map_block(root @3451994112) failed! [ 455.130988] BTRFS critical (device sdc): unable to find logical 3452010496 len 4096 [ 455.131192] btrfsic: btrfsic_map_block(root @3452010496) failed! [ 455.131195] BTRFS critical (device sdc): unable to find logical 3452026880 len 4096 [ 455.131401] btrfsic: btrfsic_map_block(root @3452026880) failed! [ 455.131914] Written block @25800392704 (sdc/1210236928/0) found in hash table, M, bytenr mismatch (!= stored 20968554496). [ 455.131938] Referenced block @25800409088 (sdc/1210253312/1) found in hash table, M, bytenr mismatch (!= stored 20968570880). [ 455.131971] Referenced block @25800409088 (sdc/1344471040/2) found in hash table, M, bytenr mismatch (!= stored 20968570880). [ 455.132017] Referenced block @25800425472 (sdc/1210269696/1) found in hash table, M, bytenr mismatch (!= stored 20968587264). [ 455.132030] Referenced block @25800425472 (sdc/1344487424/2) found in hash table, M, bytenr mismatch (!= stored 20968587264). [ 455.132344] Written block @25800392704 (sdc/1344454656/0) found in hash table, M, bytenr mismatch (!= stored 20968554496 I supposed there are some race problems between integrity check and Btrfs balance, could you guys please take a look at this issue! Best Regards, Wang Shilong