From: Lutz Vieweg <lvml@5t9.de>
To: linux-btrfs@vger.kernel.org
Subject: Re: WARNING: at /fs/btrfs/extent-tree.c:4029 btrfs_free_reserved_data_space
Date: Wed, 01 Jul 2015 14:35:24 +0200 [thread overview]
Message-ID: <mn0mqd$7pu$1@ger.gmane.org> (raw)
In-Reply-To: <loom.20150630T110709-722@post.gmane.org>
On 06/30/2015 11:10 AM, David Weber wrote:
> I use Btrfs with regular snapshots on my workstation with Virtualbox since
> years. Running filefrag on the image doesn't complete after hours but the
> IO of the VM is still "fast enough". But the definition of "fast enough"
> can vary heavily.
How do you backup the VM images? If filefrag takes hours to complete,
I'd assume that attempting a sequential read of the whole file (from a
backup software) takes just as long.
> If it becomes to slow I will try a btrfs fi deframent or just recreate the
> image with a no reflink copy.
Chances are this will also take hours.
Regards,
Lutz Vieweg
next prev parent reply other threads:[~2015-07-01 12:35 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-29 9:35 WARNING: at /fs/btrfs/extent-tree.c:4029 btrfs_free_reserved_data_space David Weber
2015-06-29 10:37 ` Lutz Vieweg
2015-06-30 9:10 ` David Weber
2015-07-01 12:35 ` Lutz Vieweg [this message]
2015-07-07 12:28 ` David Weber
2015-07-07 14:45 ` Lutz Vieweg
2015-07-08 2:45 ` Liu Bo
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