http://bugs.winehq.org/show_bug.cgi?id=35617
--- Comment #2 from Jerome Leclanche adys.wh@gmail.com --- The backtrace is very lackluster. Can you get debug symbols and attach a new one? If you're on a debian/ubuntu machine they'll be in the package "wine-dbg". For versions you compiled yourself, you'll need to recompile with -O0.