From: Jeremiah Mahler <jmmahler@gmail.com>
To: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: linux-next@vger.kernel.org, linux-kernel@vger.kernel.org,
Dmitry Monakhov <dmonakhov@openvz.org>,
Theodore Ts'o <tytso@mit.edu>
Subject: Re: linux-next: Tree for Dec 4
Date: Thu, 4 Dec 2014 16:54:01 -0800 [thread overview]
Message-ID: <20141205005401.GA1279@hudson.localdomain> (raw)
In-Reply-To: <20141204233411.GA1223@hudson.localdomain>
all,
On Thu, Dec 04, 2014 at 03:34:11PM -0800, Jeremiah Mahler wrote:
> all,
>
> On Thu, Dec 04, 2014 at 07:59:28PM +1100, Stephen Rothwell wrote:
> > Hi all,
> >
> > Changes since 20141203:
> >
[...]
> >
> > --
> > Cheers,
> > Stephen Rothwell sfr@canb.auug.org.au
> >
> [...]
>
> linux-next 20141204 is broken on all my machines, 20141203 worked fine.
>
> They fail very early in the boot process and are unable to mount root.
> There are lots of "ext4_check_descriptors: Checksum for group ...
> failed" messages.
>
> Any suggestions for where to start looking?
>
> --
> - Jeremiah Mahler
I ran a bisect and found this patch to be faulty.
commit fdfe073987619ec375da8d8a2701ab271d1b1339
Author: Dmitry Monakhov <dmonakhov@openvz.org>
Date: Tue Dec 2 16:09:16 2014 -0500
ext4: fix potential use after free during resize
We need some sort of synchronization while updating ->s_group_desc
because there are a lot of users which can access old ->s_group_desc
array after it was released.
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
--
- Jeremiah Mahler
next prev parent reply other threads:[~2014-12-05 0:54 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-04 8:59 linux-next: Tree for Dec 4 Stephen Rothwell
2014-12-04 23:34 ` Jeremiah Mahler
2014-12-05 0:54 ` Jeremiah Mahler [this message]
2014-12-05 8:29 ` Dmitry Monakhov
-- strict thread matches above, loose matches on Subject: below --
2025-12-04 6:54 Stephen Rothwell
2024-12-04 14:49 Mark Brown
2023-12-04 4:57 Stephen Rothwell
2020-12-04 10:20 Stephen Rothwell
2019-12-04 5:06 Stephen Rothwell
2018-12-04 6:46 Stephen Rothwell
2017-12-04 4:06 Stephen Rothwell
2013-12-04 3:01 Stephen Rothwell
2012-12-04 6:22 Stephen Rothwell
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