linux-kernel - Re: 3.4.0-rc6: WARNING: at fs/btrfs/super.c:219 __btrfs_abort

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Message-ID: <4FB12FE1.2070909@arndnet.de>
Date:	Mon, 14 May 2012 18:16:33 +0200
From:	Arnd Hannemann <arnd@...dnet.de>
To:	dave@...os.cz
CC:	linux-btrfs@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: 3.4.0-rc6: WARNING: at fs/btrfs/super.c:219 __btrfs_abort_transaction+0xae/0xc0
 [btrfs]()

Hello David,

Am 14.05.2012 17:05, schrieb David Sterba:
> On Mon, May 14, 2012 at 03:18:46PM +0200, Arnd Hannemann wrote:
>> I just got the following warning on a compressed btrfs filesystem, while writing on it
>> until no remaining space was available.
>> Looks like a bit verbose "disk full" message, is it expected behavior?
> 
> Shouldn't be the case for regular ENOSPC (ie. when the space is reserved
> in advance and with the possibility to fail early). If the transaction
> is aborted, it means it's too late and there was some logic error.
> 
> Can you please describe more the fs and how did you fill it? Like single
> process or multiple, dd or whatever.

the particular filesystem is used for chroots (/opt/chroots). It got full while
installing texlive-extra on a debian squeeze (i386) chroot.
It was probably a single process, but it involed a lot of small files.

Best regards
Arnd

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