(In reply to comment #32)
> Created attachment 75658 [details] [review] [review]
> align dma commands to 8 dwords
> 
> Does this patch help?  You might also try it in combination with this patch:
> http://lists.freedesktop.org/archives/mesa-dev/2013-February/035347.html

Tried proposed patch and the 5 patches from the link (the link and the 4
others) and still the same corruption.

However, I noticed the errors seam to have gone with latest mesa from git (no
link with the patches, tested with and without them). I ran steam and
RendererFeatTest64 and no error appeared in dmesg anymore. What about you
Jakob?