http://bugs.winehq.org/show_bug.cgi?id=31406
--- Comment #58 from Rico kgbricola@web.de 2012-09-14 12:18:23 CDT --- I tried Sacred Underworld (2.28) only with the xcb patch and it didn't crash within 3 hours. Well then I gave up testing.
While trying without the xcb patch it crashed on several tries <10min.
If you don't know if you are running the correct patched libxcb, there are several ways to verify it. The easiest would be to add a printf with a static variable, so that it would print "hello, this is the patched libxcb". Otherwise, you may have a look into /proc/<pid>/maps which lib is used.