LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Markus Trippelsdorf <markus@trippelsdorf.de>
To: Filipe David Manana <fdmanana@gmail.com>
Cc: Chris Mason <clm@fb.com>,
	linux-btrfs <linux-btrfs@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: WARNING: CPU: 2 PID: 32343 at fs/btrfs/inode.c:8693 btrfs_destroy_inode+0x278/0x2a0()
Date: Mon, 2 Mar 2015 14:29:33 +0100	[thread overview]
Message-ID: <20150302132933.GA347@x4> (raw)
In-Reply-To: <CAL3q7H6LPNt4zqrt9DFigJhc=gaNRew5VrKQGaP5o_h-5X1eRw@mail.gmail.com>

On 2015.03.02 at 12:07 +0000, Filipe David Manana wrote:
> >> [83159.038708] ------------[ cut here ]------------
> >> [83159.038716] WARNING: CPU: 2 PID: 32343 at fs/btrfs/inode.c:8693 btrfs_destroy_inode+0x278/0x2a0()
> >> [83159.038718] CPU: 2 PID: 32343 Comm: rm Tainted: G        W       4.0.0-rc1-dirty #104
> >> [83159.038719] Hardware name: System manufacturer System Product Name/M4A78T-E, BIOS 3503    04/13/2011
> >> [83159.038720]  0000000000000000 ffffffff8199990f ffffffff8168d723 0000000000000000
> >> [83159.038722]  ffffffff8106d2d2 0000000000000000 ffff88005756edf0 ffff880215805800
> >> [83159.038723]  ffff880169477eb8 ffff88005756edf0 ffffffff8121bab8 ffff880100675000
> >> [83159.038725] Call Trace:
> >> [83159.038728]  [<ffffffff8168d723>] ? dump_stack+0x40/0x50
> >> [83159.038731]  [<ffffffff8106d2d2>] ? warn_slowpath_common+0x72/0xc0
> >> [83159.038732]  [<ffffffff8121bab8>] ? btrfs_destroy_inode+0x278/0x2a0
> >> [83159.038735]  [<ffffffff8111f747>] ? do_unlinkat+0x1a7/0x2e0
> >> [83159.038737]  [<ffffffff81083974>] ? task_work_run+0xb4/0x100
> >> [83159.038740]  [<ffffffff8103b9a9>] ? do_notify_resume+0x69/0x80
> >> [83159.038742]  [<ffffffff81694092>] ? system_call_fastpath+0x12/0x17
> >> [83159.038743] ---[ end trace 3b7c45c6e46fe8dd ]---
> >> [83159.038744] ------------[ cut here ]------------
> >> [83159.038745] WARNING: CPU: 2 PID: 32343 at fs/btrfs/inode.c:8694 btrfs_destroy_inode+0x1f2/0x2a0()
> >> [83159.038746] CPU: 2 PID: 32343 Comm: rm Tainted: G        W       4.0.0-rc1-dirty #104
> >> [83159.038747] Hardware name: System manufacturer System Product Name/M4A78T-E, BIOS 3503    04/13/2011
> >> [83159.038747]  0000000000000000 ffffffff8199990f ffffffff8168d723 0000000000000000
> >> [83159.038749]  ffffffff8106d2d2 0000000000000000 ffff88005756edf0 ffff880215805800
> >> [83159.038750]  ffff880169477eb8 ffff88005756edf0 ffffffff8121ba32 ffff880100675000
> >> [83159.038751] Call Trace:
> >> [83159.038753]  [<ffffffff8168d723>] ? dump_stack+0x40/0x50
> >> [83159.038754]  [<ffffffff8106d2d2>] ? warn_slowpath_common+0x72/0xc0
> >> [83159.038755]  [<ffffffff8121ba32>] ? btrfs_destroy_inode+0x1f2/0x2a0
> >> [83159.038757]  [<ffffffff8111f747>] ? do_unlinkat+0x1a7/0x2e0
> >> [83159.038758]  [<ffffffff81083974>] ? task_work_run+0xb4/0x100
> >> [83159.038760]  [<ffffffff8103b9a9>] ? do_notify_resume+0x69/0x80
> >> [83159.038761]  [<ffffffff81694092>] ? system_call_fastpath+0x12/0x17
> >> [83159.038762] ---[ end trace 3b7c45c6e46fe8de ]---
> >
> > Unfortunately the issue isn't 100% reproducible, so I unfortunately
> > cannot bisect.
> 
> You probably don't need to bisect. The warning is related to the
> outstanding_extents counter being != 0:
> 
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/fs/btrfs/inode.c?id=refs/tags/v4.0-rc1#n8693
> 
> The only change in 4.0 that changes updates to that counter is:
> 
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3e05bde8c3c2dd761da4d52944a087907955a53c
> 
> So that's likely the change you would find with a bisect.

OK, thank you. I will revert the commit and see if it fixes the issue.

-- 
Markus

  reply	other threads:[~2015-03-02 13:29 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-19 20:36 [GIT PULL] Btrfs Chris Mason
2015-02-20 10:09 ` Markus Trippelsdorf
2015-02-24 12:29   ` WARNING: CPU: 2 PID: 32343 at fs/btrfs/inode.c:8693 btrfs_destroy_inode+0x278/0x2a0() Markus Trippelsdorf
2015-03-02 11:25     ` Markus Trippelsdorf
2015-03-02 12:07       ` Filipe David Manana
2015-03-02 13:29         ` Markus Trippelsdorf [this message]
2015-03-03 14:13           ` Markus Trippelsdorf
2015-03-07  9:35             ` Filipe David Manana
2015-03-10 11:42               ` Markus Trippelsdorf

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=20150302132933.GA347@x4 \
    --to=markus@trippelsdorf.de \
    --cc=clm@fb.com \
    --cc=fdmanana@gmail.com \
    --cc=linux-btrfs@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --subject='Re: WARNING: CPU: 2 PID: 32343 at fs/btrfs/inode.c:8693 btrfs_destroy_inode+0x278/0x2a0()' \
    /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

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).