linux-ext4 - Re: Bug in delayed allocation: really bad block layouts!

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: <489F49B0.6020105@redhat.com>
Date:	Sun, 10 Aug 2008 15:04:00 -0500
From:	Eric Sandeen <sandeen@...hat.com>
To:	Theodore Tso <tytso@....edu>
CC:	linux-ext4@...r.kernel.org
Subject: Re: Bug in delayed allocation: really bad block layouts!

Eric Sandeen wrote:

> It may be; I tried this and then a quick filefrag run:
> 
> # filefrag  usr/include/*.h | grep -v extents | awk -F : '{print $2}' |
> sort | uniq -c
>     146  1 extent found
> 
> so everything came out contiguous.
> 
> This was with 2.6.27-0.186.rc0.git15.fc10.x86_64

Or better:

# find . -name \*.h | xargs filefrag | grep -v extents | awk -F :
'{print $2}' | sort | uniq -c
   2460  1 extent found

so *really* everything.

-Eric
--
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