linux-ext4 - Re: e2fsck (git) on ext4: unsupported feature(s): huge

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Message-ID: <20080408210048.GA16108@mit.edu>
Date:	Tue, 8 Apr 2008 17:00:48 -0400
From:	Theodore Tso <tytso@....edu>
To:	supersud501 <supersud501@...oo.de>
Cc:	Eric Sandeen <sandeen@...hat.com>, linux-ext4@...r.kernel.org
Subject: Re: e2fsck (git) on ext4: unsupported feature(s): huge_file

On Tue, Apr 08, 2008 at 09:45:08PM +0200, supersud501 wrote:
> Eric Sandeen wrote:
>> supersud501 wrote:
>>> i get this when trying to run e2fsck on my ext4dev filesystem (kernel 
>>> 2.6.25-rc8), extents enabled:
>>>
>>> e2fsck 1.40.8 (13-Mar-2008)
>>> /dev/loop2 has unsupported feature(s): huge_file
>>> e2fsck: Get a newer version of e2fsck!
>>>
>>> just updated to the git-version of e2fsprogs, same error. i know e2fsck 
>>> worked once with the drive (~2 months ago).
>>>
>>> what can i do?
>> Do you in fact have any very large files on the disk?
>
> yeah, i have (> 5.5gb).
>
> i know it worked a few months (1-2) ago, even with extents enabled. at this 
> time there where those large files too.

The old 1.39-interim-tyt3 e2fsprogs patch claimed it supported huge
files, but it didn't, actually.  It lied.  :-(

(So if you needed to repair a filesystem, e2fsck would screw up the
i_blocks field.)

I'm working on fixing that.

					- Ted
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