[Bug 91808] trine1 misrender r600g

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91808

--- Comment #8 from iive at 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).

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