linux-ext4 - Re: file allocation problem

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20090716155832.GA6605@mit.edu>
Date:	Thu, 16 Jul 2009 11:58:32 -0400
From:	Theodore Tso <tytso@....edu>
To:	Stephan Kulow <coolo@...e.de>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: file allocation problem

On Thu, Jul 16, 2009 at 01:31:17PM +0200, Stephan Kulow wrote:
> Hi,
> 
> I played around with ext4 online defrag on 2.6.31-rc3 and noticed a problem. 
> The core is this:

Was your filesystem originally an ext3 filesystme which was converted
over to ext4?  What features are currently enabled (sending a copy of
the output of "dumpe2fs -h /dev/XXX" would be helpful.)

If it is the case that this was originally an ext3 filesystem,
e4defrag does have some definite limitations that will prevent it from
doing a great job in such a case.  I'm guessing that's what's going on
here.

> Now that I call fragmented! Calling e4defrag again gives me
> 34->28 and now it moved _parts_

I'm not sure what you mean by moving _parts_?

						- Ted
--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html