https://bugs.freedesktop.org/show_bug.cgi?id=93649
--- Comment #9 from Matthew Dawson matthew@mjdsystems.ca --- (In reply to pc.jago1337 from comment #8)
Also, this could be a duplicate of bug #92912 - random lockups in TF2, all with radeon.
I was asked to file this bug separately. Also that covers R600, a different GPU the GCN.