From: Alexandre Oliva <oliva@gnu.org>
To: linux-btrfs@vger.kernel.org
Subject: Re: non-atomic xattr replacement in btrfs => rsync random errors
Date: Thu, 06 Nov 2014 23:39:02 -0200 [thread overview]
Message-ID: <orfvdvaix5.fsf@free.home> (raw)
In-Reply-To: <oroasjals2.fsf@free.home> (Alexandre Oliva's message of "Thu, 06 Nov 2014 22:37:17 -0200")
[dropping rsync@lists.samba.org, it rejects posts from non-subscribers;
refer to https://bugzilla.samba.org/show_bug.cgi?id=10925 instead]
On Nov 6, 2014, Alexandre Oliva <oliva@gnu.org> wrote:
> What makes the problem visible is that btrfs appears to have a race in
> its handling of xattr replacement, leaving a window between the removal
> of the old value and the insertion of the new one
The bugs described above occurred with rsync-3.1.0-5.fc20.x86_64 and
kernel-libre-3.16.7-200.fc20.gnu.x86_64. The btrfs code in kernel-libre
is unchanged from the corresponding Fedora kernel. The distro is BLAG
200k/x86_64, under development.
--
Alexandre Oliva, freedom fighter http://FSFLA.org/~lxoliva/
You must be the change you wish to see in the world. -- Gandhi
Be Free! -- http://FSFLA.org/ FSF Latin America board member
Free Software Evangelist|Red Hat Brasil GNU Toolchain Engineer
next prev parent reply other threads:[~2014-11-07 1:40 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-07 0:37 non-atomic xattr replacement in btrfs => rsync random errors Alexandre Oliva
2014-11-07 1:39 ` Alexandre Oliva [this message]
2014-11-07 9:29 ` Holger Hoffstätte
2014-11-07 11:21 ` Filipe David Manana
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