https://bugs.freedesktop.org/show_bug.cgi?id=68451

--- Comment #29 from Alexandre Demers <alexandre.f.dem...@gmail.com> ---
(In reply to comment #27)
> fun observation:
> 
> Instead of reverting, setting this at the end of r600_cp_dma_copy_buffer()
> appears to fix it for me:
>     rctx->b.flags |= R600_CONTEXT_INV_VERTEX_CACHE;
> 
> (R600_CONTEXT_INV_CONST_CACHE will also work)
> 
> 
> Thing I don't understand about this is that if I instead set the flag just
> before r600_flush_emit() is called (2 places) the corruption is still there.
> I must be missing something.

Your observation also applies to my HD 6950.

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