http://bugs.winehq.org/show_bug.cgi?id=25428
--- Comment #5 from Alexandre Julliard julliard@winehq.org 2010-12-07 17:08:12 CST --- Looks like the kernel doesn't want to map things under 37000000 or so. You could confirm this by running the Linux version of your app until you run out of space. If there's still a big chunk free after that it's a kernel issue.