From: Chris Mason <chris.mason@oracle.com>
To: Johannes Hirte <johannes.hirte@fem.tu-ilmenau.de>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: system hang with btrfs master
Date: Mon, 5 Oct 2009 09:13:00 -0400 [thread overview]
Message-ID: <20091005131300.GA25969@think> (raw)
In-Reply-To: <200910051440.50155.johannes.hirte@fem.tu-ilmenau.de>
On Mon, Oct 05, 2009 at 02:40:49PM +0200, Johannes Hirte wrote:
> I'm using btrfs on two devices here, /usr on sda3 and /home on sdb (dm-crypt
> device on the whole disk). With btrfs-master the whole system hangs when
> accessing /home. The system hangs when I'm logging in into my account with KDE
> and is easily reproducible with dbench. On /usr the hangs appeared also but
> not as often as on the /home-device. I've tested on a third device with new
> created btrfs on top of dm-crypt, but wasn't able to reproduce the hangs. The
> filesystems are created without metadata-mirroring (-m single). I've bisected
> this to:
>
> commit 11833d66be94b514652466802100378046c16b72
> Author: Yan Zheng <zheng.yan@oracle.com>
> Date: Fri Sep 11 16:11:19 2009 -0400
>
> Btrfs: improve async block group caching
Hello,
Could you please capture the output of sysrq-l and sysrq-t during the
hang?
-chris
next prev parent reply other threads:[~2009-10-05 13:13 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-05 12:40 system hang with btrfs master Johannes Hirte
2009-10-05 13:13 ` Chris Mason [this message]
[not found] ` <200910051910.56283.johannes.hirte@fem.tu-ilmenau.de>
2009-10-05 18:46 ` Chris Mason
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