[OpenAFS] Strange kernel messages from yesterday...

[Marc Dionne]

On Mon, Nov 2, 2009 at 7:57 AM, Harald Barth <haba@kth.se> wrote:
>
>> I've never seen anything about ext4 (which is more and more
>> supported by recent kernels/distributions) : is it completely
>> deprecated for afs data store? Or does it just brings nothing more
>> (in terms of speed, reliability...) than ext3?
>
> There was a lot of enthusiasm about reiserfs in the beginning, too.
>
> Let it prove itself in a big distro on desktop systems for a while.
>
> It is just too new to say something about stability/reliability IMHO.
>
> Harald.

There have been many reports of extensive ext4 filesystem corruption
during the current 2.6.32-rc kernel series (see for example
http://bugzilla.kernel.org/show_bug.cgi?id=14354), after unclean
shutdowns.

I personally experienced this twice on a desktop and lost hundreds of
files (looked like roughly the last half-hour of activity) each time.
In my case this didn't touch anything too critical (although I had
mild corruption of an openafs git clone), but having this happen on a
/vicepx partition would not be pleasant.  It definitely needs to
mature before being considered for use as a server data store.

Marc