linux-ext4 - Re: [PATCH RESEND] ext4: Fix kernel BUG at fs/ext4/mballoc.c:910!

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]

Date:	Fri, 15 Feb 2008 16:18:28 +0100
From:	Valerie Clement <valerie.clement@...l.net>
To:	Eric Sandeen <sandeen@...hat.com>
Cc:	linux-ext4 <linux-ext4@...r.kernel.org>
Subject: Re: [PATCH RESEND] ext4: Fix kernel BUG at fs/ext4/mballoc.c:910!

Eric Sandeen wrote:
> Valerie Clement wrote:
>> Fix kernel BUG at fs/ext4/mballoc.c:910!
>>
>> From: Valerie Clement <valerie.clement@...l.net>
>>
>> With the flex_bg feature enabled, a large file creation oopses the
>> kernel.
> 
> Valerie, what's the specific testcase for this?
> 
> Thanks,
> -Eric
I just did a simple dd,
  dd if=/dev/zero of=/mnt/test/foo bs=1M count=8k
on an ext4 filesystem with the uninit_groups, lazy_bg and flex_bg
features enabled and the default mount options.

The difficulty is to build e2fsprogs programs that integrate all
these new features together.
    Valerie





-
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