From: Chris Mason <clm@fb.com>
To: Dave Jones <davej@codemonkey.org.uk>,
Linus Torvalds <torvalds@linux-foundation.org>,
Jens Axboe <axboe@fb.com>, Andy Lutomirski <luto@amacapital.net>,
Andy Lutomirski <luto@kernel.org>,
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: btrfs btree_ctree_super fault
Date: Thu, 10 Nov 2016 10:27:56 -0500 [thread overview]
Message-ID: <9723b056-f484-a6f6-0b6f-fd10f7b772f6@fb.com> (raw)
In-Reply-To: <20161110143520.6fdu34afv45ui3y6@codemonkey.org.uk>
On 11/10/2016 09:35 AM, Dave Jones wrote:
> On Tue, Nov 08, 2016 at 10:08:04AM -0500, Chris Mason wrote:
>
> > > And another new one:
> > >
> > > kernel BUG at fs/btrfs/ctree.c:3172!
> > >
> > > Call Trace:
> > > [<ffffffffa009cff0>] __btrfs_drop_extents+0xb00/0xe30 [btrfs]
> >
> > We've been hunting this one for at least two years. It's the white
> > whale of btrfs bugs. Josef has a semi-reliable reproducer now, but I
> > think it's not the same as the pagevec based problems you reported earlier.
>
> Great, now for whatever reason, I'm hitting this over and over.
>
> Even better, after the last time I hit it, it reboot and this happened during boot..
>
> BTRFS info (device sda6): disk space caching is enabled
> BTRFS info (device sda6): has skinny extents
> BTRFS info (device sda3): disk space caching is enabled
> ------------[ cut here ]------------
> WARNING: CPU: 1 PID: 443 at fs/btrfs/file.c:546 btrfs_drop_extent_cache+0x411/0x420 [btrfs]
> CPU: 1 PID: 443 Comm: mount Not tainted 4.9.0-rc4-think+ #1
> ffffc90000c4b468 ffffffff813b66bc 0000000000000000 0000000000000000
> ffffc90000c4b4a8 ffffffff81086d2b 0000022200c4b488 000000000002f265
> 40c8dded1afd6000 ffff8804ff5cddc8 ffff8804ef26f2b8 40c8dded1afd5000
> Call Trace:
> [<ffffffff813b66bc>] dump_stack+0x4f/0x73
> [<ffffffff81086d2b>] __warn+0xcb/0xf0
> [<ffffffff81086e5d>] warn_slowpath_null+0x1d/0x20
> [<ffffffffa009c0f1>] btrfs_drop_extent_cache+0x411/0x420 [btrfs]
> [<ffffffff81215923>] ? alloc_debug_processing+0x73/0x1b0
> [<ffffffffa009c93f>] __btrfs_drop_extents+0x44f/0xe30 [btrfs]
> [<ffffffffa005426a>] ? btrfs_alloc_path+0x1a/0x20 [btrfs]
> [<ffffffffa005426a>] ? btrfs_alloc_path+0x1a/0x20 [btrfs]
> [<ffffffff8121842a>] ? kmem_cache_alloc+0x2aa/0x330
> [<ffffffffa005426a>] ? btrfs_alloc_path+0x1a/0x20 [btrfs]
> [<ffffffffa009e399>] btrfs_drop_extents+0x79/0xa0 [btrfs]
> [<ffffffffa00ce4d1>] replay_one_extent+0x1e1/0x710 [btrfs]
> [<ffffffffa00cec6d>] replay_one_buffer+0x26d/0x7e0 [btrfs]
> [<ffffffff8121732c>] ? ___slab_alloc.constprop.83+0x27c/0x5c0
> [<ffffffffa005426a>] ? btrfs_alloc_path+0x1a/0x20 [btrfs]
> [<ffffffff813d5b87>] ? debug_smp_processor_id+0x17/0x20
> [<ffffffffa00ca3db>] walk_up_log_tree+0xeb/0x240 [btrfs]
> [<ffffffffa00ca5d6>] walk_log_tree+0xa6/0x1d0 [btrfs]
> [<ffffffffa00d32fc>] btrfs_recover_log_trees+0x1dc/0x460 [btrfs]
> [<ffffffffa00cea00>] ? replay_one_extent+0x710/0x710 [btrfs]
> [<ffffffffa0081f65>] open_ctree+0x2575/0x2670 [btrfs]
> [<ffffffffa005144b>] btrfs_mount+0xd0b/0xe10 [btrfs]
> [<ffffffff811da804>] ? pcpu_alloc+0x2d4/0x660
> [<ffffffff810dce41>] ? lockdep_init_map+0x61/0x200
> [<ffffffff810d39eb>] ? __init_waitqueue_head+0x3b/0x50
> [<ffffffff81243794>] mount_fs+0x14/0xa0
> [<ffffffff8126305b>] vfs_kern_mount+0x6b/0x150
> [<ffffffffa0050a08>] btrfs_mount+0x2c8/0xe10 [btrfs]
> [<ffffffff811da804>] ? pcpu_alloc+0x2d4/0x660
> [<ffffffff810dce41>] ? lockdep_init_map+0x61/0x200
> [<ffffffff810dce41>] ? lockdep_init_map+0x61/0x200
> [<ffffffff810d39eb>] ? __init_waitqueue_head+0x3b/0x50
> [<ffffffff81243794>] mount_fs+0x14/0xa0
> [<ffffffff8126305b>] vfs_kern_mount+0x6b/0x150
> [<ffffffff81265bd2>] do_mount+0x1c2/0xda0
> [<ffffffff811d41c0>] ? memdup_user+0x60/0x90
> [<ffffffff81266ac3>] SyS_mount+0x83/0xd0
> [<ffffffff81002d81>] do_syscall_64+0x61/0x170
> [<ffffffff81894ccb>] entry_SYSCALL64_slow_path+0x25/0x25
> ---[ end trace d3fa03bb9c115bbe ]---
> BTRFS: error (device sda3) in btrfs_replay_log:2491: errno=-17 Object already exists (Failed to recover log tree)
> BTRFS error (device sda3): cleaner transaction attach returned -30
> BTRFS error (device sda3): open_ctree failed
>
>
> Guess I'll hit it with btrfsck and hope for the best..
You can zero the log if you need to. Josef has a ton of tracing around
this right now, so I'm hoping we nail it down very soon.
-chris
next prev parent reply other threads:[~2016-11-10 15:28 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
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 [this message]
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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