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Message-ID: <20140212024728.GA10263@localhost>
Date: Wed, 12 Feb 2014 10:47:28 +0800
From: Fengguang Wu <fengguang.wu@...el.com>
To: Jens Axboe <axboe@...nel.dk>
Cc: linux-kernel@...r.kernel.org
Subject: [null_blk] INFO: trying to register non-static key.
Hi Jens,
I got the below dmesg and the first bad commit is
commit f2298c0403b0dfcaef637eba0c02c4a06d7a25ab
Author: Jens Axboe <axboe@...nel.dk>
CommitDate: Fri Oct 25 11:56:00 2013 +0100
null_blk: multi queue aware block test driver
A driver that simply completes IO it receives, it does no
transfers. Written to fascilitate testing of the blk-mq code.
It supports various module options to use either bio queueing,
rq queueing, or mq mode.
Signed-off-by: Jens Axboe <axboe@...nel.dk>
[ 18.158432] VFS: could not find a valid V7 on nullb0.
[ 18.159280] LogFS: Start mount 1
[ 18.159732] LogFS: Start unmounting
[ 18.160368] INFO: trying to register non-static key.
[ 18.160986] the code is fine but needs lockdep annotation.
[ 18.161675] turning off the locking correctness validator.
[ 18.162341] CPU: 0 PID: 634 Comm: mount Not tainted 3.14.0-rc2-wl-01363-gf8a1366 #2
[ 18.163266] 0000000000000000 ffff88000b839c00 ffffffff827922a5 ffff88000b839cb8
[ 18.163516] ffffffff810c0202 ffff88000bac1008 ffff88000b839c98 ffff88000b839c58
[ 18.163516] 0000000000000002 ffff88000bb4f000 ffff880000000000 ffffffff00000001
[ 18.163516] Call Trace:
[ 18.163516] [<ffffffff827922a5>] dump_stack+0x19/0x1b
[ 18.163516] [<ffffffff810c0202>] __lock_acquire+0x252/0x1d80
[ 18.163516] [<ffffffff8115cc10>] ? writeback_inodes_sb_nr+0xc0/0xe0
[ 18.163516] [<ffffffff81296146>] ? logfs_get_wblocks+0x76/0x90
[ 18.163516] [<ffffffff810c2590>] lock_acquire+0x70/0x90
[ 18.163516] [<ffffffff81296146>] ? logfs_get_wblocks+0x76/0x90
[ 18.163516] [<ffffffff827a26f1>] mutex_lock_nested+0x61/0x380
[ 18.163516] [<ffffffff81296146>] ? logfs_get_wblocks+0x76/0x90
[ 18.163516] [<ffffffff81296146>] logfs_get_wblocks+0x76/0x90
[ 18.163516] [<ffffffff81293024>] logfs_sync_fs+0x14/0x30
[ 18.163516] [<ffffffff81160929>] sync_filesystem+0x59/0xb0
[ 18.163516] [<ffffffff8129a327>] logfs_kill_sb+0x27/0xf0
[ 18.163516] [<ffffffff81137afd>] deactivate_locked_super+0x2d/0x50
[ 18.163516] [<ffffffff8129b1f3>] logfs_mount+0x763/0x7e0
[ 18.163516] [<ffffffff811391d0>] mount_fs+0x10/0xe0
[ 18.163516] [<ffffffff81153f49>] vfs_kern_mount+0x69/0x140
[ 18.163516] [<ffffffff827a5efc>] ? _raw_read_unlock+0x2c/0x50
[ 18.163516] [<ffffffff81156354>] do_mount+0x934/0xb90
[ 18.163516] [<ffffffff81111462>] ? might_fault+0x52/0xb0
[ 18.163516] [<ffffffff811040a5>] ? strndup_user+0x35/0x50
[ 18.163516] [<ffffffff811568fc>] SyS_mount+0x8c/0xd0
[ 18.163516] [<ffffffff827a713b>] system_call_fastpath+0x1a/0x1f
git bisect start v3.13 v3.12 --
git bisect bad 3bad8bb5cd3048a67df43ac6b1e2f191f19d9ff0 # 21:46 1- 2 Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6
git bisect bad 049ffa8ab33a63b3bff672d1a0ee6a35ad253fe8 # 22:16 0- 1 Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
git bisect good 7e238a2ecd117e16b154e1b0ed77906596600ff5 # 22:48 40+ 6 Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
git bisect bad 0910c0bdf7c291a41bc21e40a97389c9d4c1960d # 23:07 1- 1 Merge branch 'for-3.13/core' of git://git.kernel.dk/linux-block
git bisect good a9986464564609dd0962e6023513f7d3d313dc80 # 23:45 40+ 0 Merge branch 'for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
git bisect good f0230294271f511b41797305b685365a9e569a09 # 00:20 40+ 4 Merge tag 'dlm-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm
git bisect good 42a2d923cc349583ebf6fdd52a7d35e1c2f7e6bd # 00:49 40+ 2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
git bisect good f47671e2d861a2093179cd64dda22016664b2015 # 01:08 40+ 4 Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
git bisect good 2821fe6b00a1e902fd399bb4b7e40bc3041f4d44 # 01:25 40+ 24 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
git bisect good 8616ebb16bcef312024b9d28719f9bf5c5c3aafb # 01:48 40+ 0 block: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO
git bisect good 1dddc01af0d42b21058e0cb9c1ca9e8d5204d9b0 # 02:16 40+ 2 percpu_ida: add an API to return free tags
git bisect bad 3228f48be2d19b2dd90db96ec16a40187a2946f3 # 02:24 13- 3 blk-mq: fix for flush deadlock
git bisect bad f2298c0403b0dfcaef637eba0c02c4a06d7a25ab # 02:47 8- 7 null_blk: multi queue aware block test driver
git bisect good 320ae51feed5c2f13664aa05a76bec198967e04d # 03:17 63+ 4 blk-mq: new multi-queue block IO queueing mechanism
# first bad commit: [f2298c0403b0dfcaef637eba0c02c4a06d7a25ab] null_blk: multi queue aware block test driver
git bisect good 320ae51feed5c2f13664aa05a76bec198967e04d # 03:34 189+ 28 blk-mq: new multi-queue block IO queueing mechanism
git bisect bad f8a13667ab9da01df61cc915bc4c56bb652f6bc4 # 03:35 0- 13 0day head guard for 'devel-hourly-2014021108'
git bisect bad 6792dfe383dd20ed270da198aa0676bac47245b4 # 03:41 8- 3 Merge branch 'akpm' (patches from Andrew Morton)
git bisect bad ea2ad567c12336608ae96f244f3dc3932c1fcd1b # 03:54 7- 1 Add linux-next specific files for 20140211
Thanks,
Fengguang
View attachment "dmesg-yocto-nhm4-2:20140211130503:x86_64-randconfig-i1-02111125:3.14.0-rc2-wl-01363-gf8a1366:2" of type "text/plain" (257594 bytes)
Download attachment "x86_64-randconfig-i1-02111125-f8a13667ab9da01df61cc915bc4c56bb652f6bc4-deactivate_locked_super+-x-122541.log" of type "application/octet-stream" (47553 bytes)
View attachment "config-3.14.0-rc2-wl-01363-gf8a1366" of type "text/plain" (107075 bytes)
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