http://bugs.winehq.org/show_bug.cgi?id=19055
--- Comment #3 from Alexandre Julliard julliard@winehq.org 2009-06-24 15:52:41 --- Libgcc can't unwind through Wine code anyway. The reason for separating the function is precisely so that we can add a platform-specific unwind. That crash is very much expected if you are on x86_64.