From: Wang Shilong <wangshilong1991@gmail.com>
To: sbehrens@giantdisaster.de
Cc: Josef Bacik <jbacik@fb.com>,
clm@fb.com, linux-btrfs <linux-btrfs@vger.kernel.org>
Subject: Problems running Balance and checking integrity concurrently.
Date: Fri, 10 Oct 2014 21:35:02 +0800 [thread overview]
Message-ID: <5BE1151D-599F-4FD4-BD6B-AC707C72CEC4@gmail.com> (raw)
Hello，
I have reproduced a problem with Btrfs integrity and balance using latest
btrfs kernel,it is very easy to reproduce:
With mount option “check_int”, 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
<snip>
[ 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
next reply other threads:[~2014-10-10 13:35 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-10 13:35 Wang Shilong [this message]
2014-10-16 15:48 ` Problems running Balance and checking integrity concurrently Stefan Behrens
2014-10-17 4:26 ` Wang Shilong
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