From: Jens Axboe <axboe@kernel.dk>
To: Fengguang Wu <fengguang.wu@intel.com>
Cc: linux-kernel@vger.kernel.org, joern@logfs.org, logfs@logfs.org
Subject: Re: [null_blk] INFO: trying to register non-static key.
Date: Tue, 11 Feb 2014 20:41:09 -0700 [thread overview]
Message-ID: <20140212034109.GB9739@kernel.dk> (raw)
In-Reply-To: <20140212024728.GA10263@localhost>
On Wed, Feb 12 2014, Fengguang Wu wrote:
> Hi Jens,
>
> I got the below dmesg and the first bad commit is
>
> commit f2298c0403b0dfcaef637eba0c02c4a06d7a25ab
> Author: Jens Axboe <axboe@kernel.dk>
> CommitDate: Fri Oct 25 11:56:00 2013 +0100
Hmm dunno, the below looks more like a logfs issue, given the calltrace.
The fact that null_blk is the device used is probably less interesting.
> [ 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
--
Jens Axboe
prev parent reply other threads:[~2014-02-12 3:41 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-12 2:47 [null_blk] INFO: trying to register non-static key Fengguang Wu
2014-02-12 3:41 ` Jens Axboe [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20140212034109.GB9739@kernel.dk \
--to=axboe@kernel.dk \
--cc=fengguang.wu@intel.com \
--cc=joern@logfs.org \
--cc=linux-kernel@vger.kernel.org \
--cc=logfs@logfs.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.