https://bugs.freedesktop.org/show_bug.cgi?id=86720
--- Comment #25 from Felix Schwarz felix.schwarz@oss.schwarz.eu --- For Fedora I have a COPR with the Fedora's mesa package plus the workaround proposed by Marek on top. Other than that I think what is really needed as a first step is to extract a minimal (piglit) test case.