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Date:	Tue, 24 Jul 2012 17:44:45 +0800
From:	Zheng Liu <gnehzuil.liu@...il.com>
To:	Tomasz Chmielewski <mangoo@...g.org>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: "Setting filesystem feature 'metadata_csum' not supported" when
 trying to enable ext4 metadata checksums

On Tue, Jul 24, 2012 at 03:51:21PM +0700, Tomasz Chmielewski wrote:
> On 07/24/2012 02:50 PM, Zheng Liu wrote:
> 
> >Could you please checkout the 'pu' branch in e2fsprogs?  You need to
> >use pu branch of e2fsprogs because the patches of metadata checksum
> >for e2fsprogs are in this branch.
> >
> >BTW, until 3.5 kernel, it seems that metadata checksum still has a bug.
> >Here is a patch to fix this bug [1].
> >
> >1. http://www.spinics.net/lists/linux-ext4/msg32685.html
> 
> OK, tried with pu branch and got this:
> 
> root@s9:/usr/src/e2fsprogs# misc/tune2fs -O metadata_csum /dev/sda1
> tune2fs 1.42.3 (14-May-2012)
> rewrite_directory: Unknown code kJe 176 while rewriting directories
> 
> Expected?

No, it seems that it is not our expectation.  Could you please provide
more information?  Such as feature list.  Use "debugfs -R
'stats' /dev/${DEVICE}" to get it, please.

Regards,
Zheng
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