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Date: Sat, 29 Jan 2005 17:06:30 -0800
From: Andrew Morton <akpm@osdl.org>
To: Nathan Lynch <nathanl@austin.ibm.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.6.11-rc2-mm2 - "freeing b_committed_data"
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Nathan Lynch <nathanl@austin.ibm.com> wrote:
>
> With both 2.6.11-rc2-mm1 and -mm2 I'm seeing this message occasionally
>  on a ppc64 box with ext3 filesystems:
> 
>  __journal_remove_journal_head: freeing b_committed_data

Yes, that appears to be some mysterious race introduced by Alex's JBD fixes.

>  Is this cause for concern?

It probably introduces journalling inconsistencies such that a well-timed
crash could result in an incorrect recovery, so it's a minor problem.