[Bug 34495] Selecting objects in Blender 2.56 slow with gallium r600 driver

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=34495

--- Comment #23 from Pierre-Eric Pelloux-Prayer <pelloux at gmail.com> 2011-07-01 04:02:57 PDT ---
(In reply to comment #22)
> Heh, I just tested your 1st version now and you just released the second :)
> 
> The 1st version was working nice except when using a very high level of
> subdivisions (tested with luxball3
> http://www.luxrender.net/forum/viewtopic.php?f=13&t=1383) with the subsurf
> modifier, which would crash with "Query result: 2147483647".

I've just made the same test and it crashed too.
The problem is the driver falls in an infinite loop :
r600_context_flush -> r600_context_queries_resume -> r600_query_begin ->
r600_context_flush -> ...
If you're using r600g driver too, maybe that's a hint there's a bug in how it
handles queries/flushes (or it's simply a bug in my patch :-))
I'll have a look at this specific problem.

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