Comment # 12 on bug 66738 from lh

(In reply to comment #11)
> Are you running the same userspace stack with both kernel 3.9 and kernel
> 3.10/3.11?  If so, it sounds like this is UVD related.

Yes, I have two kernels: arch official kernel 3.9.9 and kernel
3.11-rc4(https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git) which
compiled myself.

3.9.9 was quiet stable here.