From: Josef Bacik <jbacik@fusionio.com>
To: Sage Weil <sage@inktank.com>
Cc: Josef Bacik <jbacik@fusionio.com>, <linux-btrfs@vger.kernel.org>
Subject: Re: transaction commit deadlock on current rc
Date: Fri, 18 Oct 2013 12:06:23 -0400 [thread overview]
Message-ID: <20131018160623.GE6924@localhost.localdomain> (raw)
In-Reply-To: <alpine.DEB.2.00.1310180840380.32045@cobra.newdream.net>
On Fri, Oct 18, 2013 at 08:42:28AM -0700, Sage Weil wrote:
> On Fri, 18 Oct 2013, Josef Bacik wrote:
> > On Thu, Oct 17, 2013 at 12:56:14PM -0700, Sage Weil wrote:
> > > Hey,
> > >
> > > I'm seeing the deadlock below under a ceph-osd workload. There may be a
> > > subtle problem with the async transaction sequence (since nobody but ceph
> > > uses that that I know of), but not obvious to me why
> > > create_pending_snapshots would get stuck on btrfs_tree_lock...
> > >
> >
> > Can you do sysrq+w when this happens so I can see everybody who's blocked?
> > Thanks,
>
> Oops, forgot to attach the bug link. It's at
>
> http://tracker.ceph.com/attachments/download/1035/a
> http://tracker.ceph.com/issues/6451
>
> The machine is still hung.. if there is additional info I can gather
> you can ping me on irc.
>
Oops, I'll fix that right up, sorry about that. Thanks,
Josef
next prev parent reply other threads:[~2013-10-18 16:06 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-17 19:56 transaction commit deadlock on current rc Sage Weil
2013-10-18 14:25 ` Josef Bacik
2013-10-18 15:42 ` Sage Weil
2013-10-18 16:06 ` Josef Bacik [this message]
2013-10-18 17:13 ` Chris Mason
2013-10-18 22:40 ` Sage Weil
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=20131018160623.GE6924@localhost.localdomain \
--to=jbacik@fusionio.com \
--cc=linux-btrfs@vger.kernel.org \
--cc=sage@inktank.com \
/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).