https://bugs.freedesktop.org/show_bug.cgi?id=84662
--- Comment #31 from Andreas Hartmetz ahartmetz@gmail.com --- The second kernel patch "radeon-NO_CPU_ACCESS-placement.diff" does not apply to 3.17. Michel, looks like the patch is against some version only you have? Andy, I think you didn't apply at least the second kernel patch because it's simply not possible, most likely you ignored that all hunks failed.