http://bugs.winehq.org/show_bug.cgi?id=6544
------- Additional Comments From madewokherd@gmail.com 2006-28-10 15:11 ------- This may be bug 5487. Try passing noexec32=off (or noexec=off) to your kernel.
Otherwise, I don't know how you could obtain something useful like a backtrace when wine segfaults, and I suspect Rodrigo doesn't know either. Can someone give some advice there?