From: Andi Kleen <ak@muc.de>

Another a bit ugly but necessary patch for 32bit emulation.

Some applications including some versions of java break when the stack is
beyond the i386 standard 3GB boundary.  For these add a 3GB personality
that moves the stack to 3GB and fixes the beginning of the mmap area.  It's
a bit ugly, but better than not running these applications at all (e.g. 
the Oracle installer depends on such a buggy java :-().  It's also not only
Java, but some other programs as well.