I recently noticed a regression in the nv50 gallium driver, with a few
hours of bisecting i figured out i need FLUSH_CURRENT called
unconditionally in st_teximage_flush_before_map(). Otherwise in
warzone2100 several small textures (glyphs) go missing. Does this make
any sense or perhaps provide a hint as to the real problem. One other
person has tried and could not reproduce this issue. I've tried doing
a 100 msec wait instead and gpu flush (FLUSH_FRAME to be precise) +
100 msec wait. Neither work, which leads me to believe something is
still stuck in the state tracker.

Maarten.

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