https://bugs.freedesktop.org/show_bug.cgi?id=85950

--- Comment #3 from Shawn Starr shawn.starr@rogers.com --- Yes it is indeed Mesa.

The last stable Mesa I had tested was:

mesa-dri-drivers-10.4-0.devel.2.1.20140907.fc21.x86_64.rpm

Compiled from git master but used the .spec file to build it properly. Assuming from Sept 9th to now nothing broke in 10.4.x I should be ok going to git master. However, 10.3.x is unstable for rv6xx.