https://bugs.freedesktop.org/show_bug.cgi?id=91808
--- Comment #8 from iive@yahoo.com --- This bug is still present with current Mesa-18.0.0.rc5.
Since the old trace is not available anymore I've made a new one(70MB):
https://drive.google.com/open?id=16N0m--IKupnWvnuvu27uebBjbDHUP3C4
I used "llvmpipe" during capture and the result also plays perfectly with "llvmpipe" (aka Mesa3D software render).
The bug is visible in the rotating gears/cogs. I tried "R600_DEBUG=nosb", but this does not seem to fix it.
I tried to find the draw operations. Frame #175 seems to show the artifact quite clearly. The draw operations at call #8053345 seems to draw a small cog that looks normal. I believe that the smeared gear is drawn by call #8053560.
My hardware is Radeon HD5670 Redwood Evergreen (R600 driver).