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Date: Fri, 9 May 2014 13:22:27 -0400
From: Josef Bacik <jbacik@fb.com>
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To: Abbas <mickylmartin@gmail.com>, <linux-btrfs@vger.kernel.org>
Subject: Re: Sending incremental backup causes deadlock (3.14.3)
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On 05/09/2014 11:41 AM, Abbas wrote:
> Has anyone else experienced a deadlock while doing an incremental send
> / receive?
>
> # uname -r
> 3.14.3-1.el6.elrepo.x86_64
>
> # btrfs version
> Btrfs v3.14.1
>
> Initial send works well but sending incremental snapshots just HALTS:
>
> # btrfs send -vvvv -p test/snap-2014-05-09-13:29:04
> test/snap-2014-05-09-13:32:58 | btrfs receive -vvvv backup/test
> At subvol test/snap-2014-05-09-13:32:58
> At snapshot snap-2014-05-09-13:32:58
> receiving snapshot snap-2014-05-09-13:32:58
> uuid=8cde86f7-6ded-5046-a55c-3a0d40e7a2fc, ctransid=0
> parent_uuid=1a2a9dc2-c271-524f-bd01-b671da630446, parent_ctransid=0
> ...
>

Known problem, fixed in 3.15-rc1.  Thanks,

Josef