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@xxxxxxxxxxxxxxxx
> >
> [...]
>
> 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@xxxxxxxxxx>
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@xxxxxxxxxx>
Signed-off-by: Theodore Ts'o <tytso@xxxxxxx>
--
- Jeremiah Mahler
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