(In reply to comment #9)
> I think I did everything right in this bisect (I didn't the first attempt).
> 
> fbebd431ec4e2e461a0cbcd5f3a04a000b8f6bbf is the first bad commit
> commit fbebd431ec4e2e461a0cbcd5f3a04a000b8f6bbf
> Author: Marek Olšák <maraeo@gmail.com>
> Date:   Fri Feb 3 05:05:31 2012 +0100
> 
>     r600g: move invariant register updates into start_cs for r6xx-r7xx
> 
> :040000 040000 dd9232a0c49e54e0cd536fa858dc131982dc2fbe
> 379e1d61c53d98a8706f32da5020dc22c0c0ee33 M	src

This seems correct, I can get a lock after a few minutes on this commit, but
have so far failed to lock on the one before it.