Works !!! I applied this patch against the current linux kernel of the Arch Linux distro (3.12.9-2) including all there magic during package build, just to see it works downstream. (had to recreate the patch but the actual changes were not changed). After applying this patch the bug was gone. One want to make sure that the address was the culprit and not the variable soff, which could just be wrong leading to the same problem. If that is worked out to be ok. I would be happy to see this patch upstream soon. Thanks a lot for all the hard work and searching. And sorry for the hash, have no idea what went wrong during the bug report. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel