From: Olivier Bonvalet <btrfs.list@daevel.fr>
To: "Holger Hoffstätte" <holger.hoffstaette@googlemail.com>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: Linux 3.14.18 : kernel BUG at fs/btrfs/file.c:890!
Date: Mon, 08 Sep 2014 11:39:57 +0200 [thread overview]
Message-ID: <1410169197.2383.3.camel@daevel.fr> (raw)
In-Reply-To: <pan.2014.09.07.17.48.53@googlemail.com>
Le dimanche 07 septembre 2014 à 17:48 +0000, Holger Hoffstätte a écrit :
> On Sun, 07 Sep 2014 18:39:40 +0200, Olivier Bonvalet wrote:
>
> I cannot really offer much assistance, but that particular area of code
> looks suspiciously like something fixed later and *not* yet backported
> to 3.14.8:
>
> "Btrfs: fix leaf corruption caused by ENOSPC while hole punching"
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/fs/btrfs?id=fc19c5e73645f95d3eca12b4e91e7b56faf1e4a4
>
> The symptoms described in the patch sound like they might be your OOPS.
> Unfortunately (I think) that would mean that just installing different
> kernels will not fix the problem, since the problem is on disk. :/
>
> So to me it seems your best course of action is to backup/mkfs/restore
> the affected partition and stick with 3.17-rc3, since that has tons
> more fixes.
>
> If you really need/want 3.14.x and are not afraid of building your
> own kernel, you can try applying my btrfs-* patches from:
> https://github.com/hhoffstaette/kernel-patches/tree/master/3.14
> which apply cleanly to the latest 3.14.18-stable.
>
> However even that will not fix a bungled tree on disk.
>
> -h
>
> --
Ok, so the cause is probably solved, this is a very good news, thanks.
And yes, I can easily use 3.17-rc3 kernel.
So the problem is with current data : I don't know an easy way to
export/restore subvolumes & snapshots thought network, and I don't have
physical access to this rent servers.
Any hope that btrfsck be updated to fix that ?
Olivier
next prev parent reply other threads:[~2014-09-08 9:45 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-07 16:39 Linux 3.14.18 : kernel BUG at fs/btrfs/file.c:890! Olivier Bonvalet
2014-09-07 17:48 ` Holger Hoffstätte
2014-09-08 9:39 ` Olivier Bonvalet [this message]
2014-09-08 9:59 ` Holger Hoffstätte
2014-09-08 10:48 ` Olivier Bonvalet
2014-09-08 12:29 ` Holger Hoffstätte
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