From: Dave Jones <davej@codemonkey.org.uk>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Chris Mason <clm@fb.com>, Andy Lutomirski <luto@amacapital.net>,
Andy Lutomirski <luto@kernel.org>, Jens Axboe <axboe@fb.com>,
Al Viro <viro@zeniv.linux.org.uk>, Josef Bacik <jbacik@fb.com>,
David Sterba <dsterba@suse.com>,
linux-btrfs <linux-btrfs@vger.kernel.org>,
Linux Kernel <linux-kernel@vger.kernel.org>,
Dave Chinner <david@fromorbit.com>
Subject: Re: bio linked list corruption.
Date: Wed, 26 Oct 2016 18:40:25 -0400 [thread overview]
Message-ID: <20161026224025.mou27kki4bslftli@codemonkey.org.uk> (raw)
In-Reply-To: <CA+55aFwY5jNcUAJzDWERP2r9iZHEKzHSwMi5AJCJiaVd3Z0E-g@mail.gmail.com>
On Wed, Oct 26, 2016 at 03:21:53PM -0700, Linus Torvalds wrote:
> Could you try the attached patch? It adds a couple of sanity tests:
>
> - a number of tests to verify that 'rq->queuelist' isn't already on
> some queue when it is added to a queue
>
> - one test to verify that rq->mq_ctx is the same ctx that we have locked.
>
> I may be completely full of shit, and this patch may be pure garbage
> or "obviously will never trigger", but humor me.
I gave it a shot too for shits & giggles.
This falls out during boot.
[ 9.244030] EXT4-fs (sda4): mounted filesystem with ordered data mode. Opts: (null)
[ 9.271391] ------------[ cut here ]------------
[ 9.278420] WARNING: CPU: 0 PID: 1 at block/blk-mq.c:1181 blk_sq_make_request+0x465/0x4a0
[ 9.285613] CPU: 0 PID: 1 Comm: init Not tainted 4.9.0-rc2-think+ #4
[ 9.300106] ffffc90000013848
[ 9.307353] ffffffff8130d27c
[ 9.307420] 0000000000000000
[ 9.307456] 0000000000000000
[ 9.307494] ffffc90000013888
[ 9.314780] ffffffff81077a41
[ 9.314847] 0000049d00013898
[ 9.314884] 0000000000000001
[ 9.314922] 0000000000000002
[ 9.322213] ffffe8ffffc06600
[ 9.322280] ffffe8ffff606600
[ 9.322317] ffff8805015c2e80
[ 9.322355] Call Trace:
[ 9.329689] [<ffffffff8130d27c>] dump_stack+0x4f/0x73
[ 9.337208] [<ffffffff81077a41>] __warn+0xc1/0xe0
[ 9.344730] [<ffffffff81077b18>] warn_slowpath_null+0x18/0x20
[ 9.352282] [<ffffffff812f7975>] blk_sq_make_request+0x465/0x4a0
[ 9.359816] [<ffffffff812eb44a>] ? generic_make_request+0xca/0x210
[ 9.367367] [<ffffffff812eb457>] generic_make_request+0xd7/0x210
[ 9.374931] [<ffffffff812eb5f9>] submit_bio+0x69/0x120
[ 9.382488] [<ffffffff812004ef>] ? submit_bh_wbc+0x16f/0x1e0
[ 9.390083] [<ffffffff812004ef>] submit_bh_wbc+0x16f/0x1e0
[ 9.397673] [<ffffffff81200bfe>] submit_bh+0xe/0x10
[ 9.405205] [<ffffffff81255eac>] __ext4_get_inode_loc+0x1ac/0x3d0
[ 9.412795] [<ffffffff81258f4b>] ext4_iget+0x6b/0xb70
[ 9.420366] [<ffffffff811d6018>] ? lookup_slow+0xf8/0x1f0
[ 9.427947] [<ffffffff81259a7a>] ext4_iget_normal+0x2a/0x30
[ 9.435541] [<ffffffff81264734>] ext4_lookup+0x114/0x230
next prev parent reply other threads:[~2016-10-26 22:40 UTC|newest]
Thread overview: 118+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-11 14:45 btrfs bio linked list corruption Dave Jones
2016-10-11 15:11 ` Al Viro
2016-10-11 15:19 ` Dave Jones
2016-10-11 15:20 ` Chris Mason
2016-10-11 15:49 ` Dave Jones
2016-10-11 15:54 ` Chris Mason
2016-10-11 16:25 ` Dave Jones
2016-10-12 13:47 ` Dave Jones
2016-10-12 14:40 ` Dave Jones
2016-10-12 14:42 ` Chris Mason
2016-10-13 18:16 ` Dave Jones
2016-10-13 21:18 ` Chris Mason
2016-10-13 21:56 ` Dave Jones
2016-10-16 0:42 ` Dave Jones
2016-10-18 1:07 ` Chris Mason
2016-10-18 22:42 ` Dave Jones
2016-10-18 23:12 ` Jens Axboe
2016-10-18 23:31 ` Chris Mason
2016-10-18 23:36 ` Jens Axboe
2016-10-18 23:39 ` Linus Torvalds
2016-10-18 23:42 ` Chris Mason
2016-10-19 0:10 ` Linus Torvalds
2016-10-19 0:19 ` Chris Mason
2016-10-19 0:28 ` Linus Torvalds
2016-10-20 22:48 ` Dave Jones
2016-10-19 1:05 ` Andy Lutomirski
2016-10-20 22:50 ` Dave Jones
2016-10-20 23:01 ` Andy Lutomirski
2016-10-20 23:03 ` Dave Jones
2016-10-20 23:23 ` Andy Lutomirski
2016-10-21 20:02 ` Dave Jones
2016-10-21 20:17 ` Chris Mason
2016-10-21 20:23 ` Dave Jones
2016-10-21 20:38 ` Chris Mason
2016-10-21 20:41 ` Josef Bacik
2016-10-21 21:11 ` Dave Jones
2016-10-22 15:20 ` Dave Jones
2016-10-23 21:32 ` Chris Mason
2016-10-24 4:40 ` Dave Jones
2016-10-24 13:42 ` Chris Mason
2016-10-26 0:27 ` Dave Jones
2016-10-26 1:33 ` Linus Torvalds
2016-10-26 1:39 ` Linus Torvalds
2016-10-26 16:30 ` Dave Jones
2016-10-26 16:48 ` Linus Torvalds
2016-10-26 18:18 ` Dave Jones
2016-10-26 18:42 ` Dave Jones
2016-10-26 19:06 ` Linus Torvalds
2016-10-26 20:00 ` Chris Mason
2016-10-26 21:52 ` Chris Mason
2016-10-26 22:21 ` Linus Torvalds
2016-10-26 22:40 ` Dave Jones [this message]
2016-10-26 22:51 ` Linus Torvalds
2016-10-26 22:55 ` Jens Axboe
2016-10-26 22:58 ` Linus Torvalds
2016-10-26 23:03 ` Jens Axboe
2016-10-26 23:07 ` Dave Jones
2016-10-26 23:08 ` Linus Torvalds
2016-10-26 23:20 ` Jens Axboe
2016-10-26 23:38 ` Chris Mason
2016-10-26 23:47 ` Dave Jones
2016-10-27 0:00 ` Jens Axboe
2016-10-27 13:33 ` Chris Mason
2016-10-31 18:55 ` Dave Jones
2016-10-31 19:35 ` Linus Torvalds
2016-10-31 19:44 ` Chris Mason
2016-11-06 16:55 ` btrfs btree_ctree_super fault Dave Jones
2016-11-08 14:59 ` Dave Jones
2016-11-08 15:08 ` Chris Mason
2016-11-10 14:35 ` Dave Jones
2016-11-10 15:27 ` Chris Mason
2016-11-23 19:34 ` bio linked list corruption Dave Jones
2016-11-23 19:58 ` Dave Jones
2016-12-01 15:32 ` btrfs_destroy_inode warn (outstanding extents) Dave Jones
2016-12-03 16:48 ` Dave Jones
2016-12-07 16:15 ` Dave Jones
2016-12-09 21:12 ` Steven Rostedt
2016-12-04 23:04 ` bio linked list corruption Vegard Nossum
2016-12-05 11:10 ` Vegard Nossum
2016-12-05 17:09 ` Vegard Nossum
2016-12-05 17:21 ` Dave Jones
2016-12-05 17:55 ` Linus Torvalds
2016-12-05 19:11 ` Vegard Nossum
2016-12-05 20:10 ` Linus Torvalds
2016-12-05 20:35 ` Linus Torvalds
2016-12-05 21:33 ` Vegard Nossum
2016-12-06 8:42 ` Vegard Nossum
2016-12-06 8:16 ` Peter Zijlstra
2016-12-06 8:36 ` Ingo Molnar
2016-12-06 16:33 ` Linus Torvalds
2016-12-05 20:10 ` Vegard Nossum
2016-12-05 18:11 ` Andy Lutomirski
2016-12-05 18:25 ` Linus Torvalds
2016-12-05 18:26 ` Vegard Nossum
2016-10-26 23:19 ` Chris Mason
2016-10-26 23:21 ` Jens Axboe
2016-10-27 6:33 ` Christoph Hellwig
2016-10-27 16:34 ` Linus Torvalds
2016-10-27 16:36 ` Jens Axboe
2016-10-26 23:01 ` Dave Jones
2016-10-26 23:05 ` Jens Axboe
2016-10-26 22:52 ` Jens Axboe
2016-10-26 22:07 ` Linus Torvalds
2016-10-26 22:54 ` Chris Mason
2016-10-27 5:41 ` Dave Chinner
2016-10-27 17:23 ` Dave Jones
2016-10-24 20:06 ` Andy Lutomirski
2016-10-24 20:46 ` Linus Torvalds
2016-10-24 21:17 ` Linus Torvalds
2016-10-24 21:50 ` Linus Torvalds
2016-10-24 22:02 ` Chris Mason
2016-10-24 22:42 ` Andy Lutomirski
2016-10-25 0:00 ` Linus Torvalds
2016-10-25 1:09 ` Andy Lutomirski
2016-10-19 17:09 ` Philipp Hahn
2016-10-19 17:43 ` Linus Torvalds
2016-10-20 6:52 ` Ingo Molnar
2016-10-20 7:17 ` Thomas Gleixner
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