http://bugs.winehq.org/show_bug.cgi?id=33413
--- Comment #6 from Erich Hoover erich.e.hoover@gmail.com 2013-06-11 10:16:42 CDT --- (In reply to comment #5)
Actually, before the fix we would report wrong limits, so it would have essentially the same effect as setarch -3. Now that the limits are fixed it makes sense that you'd have to do setarch explicitly.
Should we maybe be reporting different limits if it's a WoW64 process?