http://bugs.winehq.org/show_bug.cgi?id=27929
--- Comment #7 from camillo.lugaresi+wine@gmail.com 2011-08-01 07:21:22 CDT --- create_alpha_bitmap is a red herring, it seems. The real crash occurs while loading libraries, and the signal handlers is not called because it has not even been installed at that point. Unfortunately, this crash does not occur when running with gdb, so it's hard to debug.