https://bugs.freedesktop.org/show_bug.cgi?id=84627
--- Comment #7 from smoki smoki00790@gmail.com --- (In reply to Michel Dänzer from comment #6)
And this goes away if RADEON_FLAG_GTT_WC isn't set in r600_buffer_common.c:r600_init_resource()?
No, that does not help for this corruption. That helps only where games stutter when GTT loads.