http://bugs.winehq.org/show_bug.cgi?id=20331
--- Comment #1 from Alexandre Julliard julliard@winehq.org 2009-10-12 04:10:55 --- Low addresses are returned until we run out of low address space. After that we use the system default policy. If your app really depends on this (why?) you'd have to tweak the linux kernel policy.