linux-kernel - Re: 2.6.29-git: cannot mount ext4/loop

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Message-ID: <20090402145436.GF10642@mit.edu>
Date:	Thu, 2 Apr 2009 10:54:36 -0400
From:	Theodore Tso <tytso@....edu>
To:	Thiemo Nagel <thiemo.nagel@...tum.de>
Cc:	Alexander Beregalov <a.beregalov@...il.com>,
	Jens Axboe <jens.axboe@...cle.com>, linux-ext4@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: 2.6.29-git: cannot mount ext4/loop

On Thu, Apr 02, 2009 at 03:30:26PM +0200, Thiemo Nagel wrote:
> When I added the block range checks, initially I was assuming that
> when EXTENTS_FL is not set, the inode->i_data *always* contains
> references to further blocks.  Ted showed me wrong and added the condition
>
> 	ISREG() || ISDIR() || ( ISLNK() && !is_fast_symlink() )
>
> before that assumption can be made.  But maybe we need some further
> restraints?

It's a endian-problem; we're missing le32_to_cpu() in that patch.
Sparc is big-endian. 

Alexander, thanks for pointing this out.  We'll have to get this fixed
and pushed to Linus ASAP.

						- Ted
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