http://bugs.winehq.org/show_bug.cgi?id=31585
--- Comment #5 from Dmitriy S. Zverev dmitrij.zverev@gmail.com 2012-08-30 13:35:15 CDT --- Maybe it helps.. (new info in attachment)
(In reply to comment #3)
Probably, but the backtrace doesn't have debug symbols for r600_dri.so.