http://bugs.winehq.org/show_bug.cgi?id=30406
--- Comment #3 from Mark K markk@clara.co.uk 2012-05-03 14:42:13 CDT --- I compiled wine 1.5.3 myself, and while I get a decent-looking backtrace when running other programs which crash, there is no more info in the backtrace with this WinUAE crash than in the attachment to the bug description above.
I don't know whether the lack of backtrace could be another Wine bug, or just something about the state of the stack when WinUAE crashes.