From: Chris Mason <chris.mason@fusionio.com>
To: "Richard W.M. Jones" <rjones@redhat.com>
Cc: "linux-btrfs@vger.kernel.org" <linux-btrfs@vger.kernel.org>
Subject: Re: What can I do to make btrfs work?
Date: Tue, 12 Feb 2013 14:02:58 -0500 [thread overview]
Message-ID: <20130212190258.GH16687@shiny.masoncoding.com> (raw)
In-Reply-To: <20130212185449.GA16773@rhmail.home.annexia.org>
On Tue, Feb 12, 2013 at 11:54:49AM -0700, Richard W.M. Jones wrote:
> Btrfs has been broken for me for ages. I first reported it on this
> list 5 months ago[1]. Below is a very simple reproducer that anyone
> can run.
>
> *NB* before you run this, adjust /dev/sda & /dev/sda1 to point to an
> unused block device!
>
> ----------------------------------------------------------------------
> #!/bin/sh -
> set -e
> while true; do
> parted -s -- /dev/sda mklabel msdos
> parted -s -- /dev/sda mkpart primary 64s -64s
> wipefs -a /dev/sda1
> mkfs.btrfs --label TEST /dev/sda1
> mount /dev/sda1 /sysroot
> touch /sysroot/foo
> mkdir /sysroot/bar
> umount /sysroot
> done
> ----------------------------------------------------------------------
>
> On the latest 3.8.0 kernel, this fails immediately (at the mount), and
> on 3.7.x it usually fails after a very few iterations. I see a
> variety of errors, but the latest kernel error is:
>
> [ 8.474934] device label ROOT devid 1 transid 2 /dev/sda2
> [ 8.570619] device label ROOT devid 1 transid 2 /dev/sda2
> [ 8.581891] btrfs: disk space caching is enabled
> [ 8.594146] btrfs bad tree block start 0 4194304
> [ 8.595144] btrfs: failed to read tree root on sda2
> [ 8.605308] btrfs: open_ctree failed
>
> I would really like btrfs to work. What can I do?
Hi Rich,
Can you try the btrfs-progs raid56-experimental branch. It has this
patch which was fixing things for me:
https://git.kernel.org/?p=linux/kernel/git/mason/btrfs-progs.git;a=commit;h=8fe354744cd7b5c4f7a3314dcdbb5095192a032f
I'm not 100% sure I've reproduced your exact problem, but I hope this is
it.
-chris
next prev parent reply other threads:[~2013-02-12 19:03 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-12 18:54 What can I do to make btrfs work? Richard W.M. Jones
2013-02-12 19:02 ` Chris Mason [this message]
2013-02-12 19:16 ` Josef Bacik
2013-02-12 21:05 ` Richard W.M. Jones
2013-02-12 21:42 ` Chris Mason
2013-02-13 11:00 ` Richard W.M. Jones
2013-02-13 13:10 ` Richard W.M. Jones
2013-02-13 13:31 ` Chris Mason
2013-02-15 18:38 ` Chris Mason
2013-02-12 19:44 ` Zach Brown
2013-02-12 21:06 ` Richard W.M. Jones
2013-02-12 20:08 ` Roman Mamedov
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