linux-btrfs.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Dave Jones <davej@codemonkey.org.uk>
To: Chris Mason <clm@fb.com>
Cc: Al Viro <viro@ZenIV.linux.org.uk>, Josef Bacik <jbacik@fb.com>,
	David Sterba <dsterba@suse.com>,
	linux-btrfs@vger.kernel.org,
	Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: btrfs bio linked list corruption.
Date: Wed, 12 Oct 2016 09:47:17 -0400	[thread overview]
Message-ID: <20161012134717.n74tww5eywc7dqp7@codemonkey.org.uk> (raw)
In-Reply-To: <d61af3b4-4209-3fee-a201-e7847c340583@fb.com>

On Tue, Oct 11, 2016 at 11:54:09AM -0400, Chris Mason wrote:
 > 
 > 
 > On 10/11/2016 10:45 AM, Dave Jones wrote:
 > > This is from Linus' current tree, with Al's iovec fixups on top.
 > > 
 > > ------------[ cut here ]------------
 > > WARNING: CPU: 1 PID: 3673 at lib/list_debug.c:33 __list_add+0x89/0xb0
 > > list_add corruption. prev->next should be next (ffffe8ffff806648), but was ffffc9000067fcd8. (prev=ffff880503878b80).
 > > CPU: 1 PID: 3673 Comm: trinity-c0 Not tainted 4.8.0-think+ #13 
 > >  ffffc90000d87458 ffffffff8d32007c ffffc90000d874a8 0000000000000000
 > >  ffffc90000d87498 ffffffff8d07a6c1 0000002100000246 ffff88050388e880

I hit this again overnight, it's the same trace, the only difference
being slightly different addresses in the list pointers:

[42572.777196] list_add corruption. prev->next should be next (ffffe8ffff806648), but was ffffc90000647cd8. (prev=ffff880503a0ba00).

I'm actually a little surprised that ->next was the same across two
reboots on two different kernel builds.  That might be a sign this is
more repeatable than I'd thought, even if it does take hours of runtime
right now to trigger it.  I'll try and narrow the scope of what trinity
is doing to see if I can make it happen faster.

	Dave


  parent reply	other threads:[~2016-10-12 13:48 UTC|newest]

Thread overview: 117+ 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 [this message]
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 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
     [not found]                               ` <77d9983d-a00a-1dc1-a9a1-631de1d0c146@fb.com>
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
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
2016-10-19 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

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=20161012134717.n74tww5eywc7dqp7@codemonkey.org.uk \
    --to=davej@codemonkey.org.uk \
    --cc=clm@fb.com \
    --cc=dsterba@suse.com \
    --cc=jbacik@fb.com \
    --cc=linux-btrfs@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=viro@ZenIV.linux.org.uk \
    /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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).