[Bug 18397] Small pixmap corruption [EXA enabled]

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=18397





--- Comment #39 from Øyvind Stegard <oyvinst at ifi.uio.no>  2009-02-10 13:47:56 PST ---
(In reply to comment #38)
> Created an attachment (id=22774)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=22774) [details]
> make sure the engine is idle before sw access
> 
> how about this patch?
> 

Now you're on the right direction. My infamous checkbox-test in Firefox/GMail 
shows there is improvement (it's better than I've ever seen it before with
EXA). There are still rendering errors in a few check-boxes, but they are fewer
now. I see idle-looping going on, should I try to increase the number of
iterations before giving up and returning in RADEONWaitforIdlePoll() ? Or
perhaps that does not make sense and is unwise .. Obviously racy little slime
bug this. I noticed you put back the drm busy waiting code in the latest patch
(in the DFS func), that at least seemed to help. Also, I see the only XXX: in
radeon_exa_funcs.c is located above that part :).


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