https://bugzilla.kernel.org/show_bug.cgi?id=30102
--- Comment #12 from Michel Dänzer michel@daenzer.net --- (In reply to Alex Perez from comment #11)
Multiple users including myself are experiencing this problem on PPC64 (big-endian) with kernel 3.8.13.
The symptoms may be similar or even the same, but it's unlikely to be the same problem. Please file your own report, preferably at
https://bugs.freedesktop.org/enter_bug.cgi?product=DRI
but here is fine as well.