on the negative side, I have to add the mmap back or else it segfaults on the positive side, with ds's fix for stack_...

Original commit message from CVS:
on the negative side, I have to add the mmap back or else it segfaults
on the positive side, with ds's fix for stack_top, I haven't had a
segfault in any of the thread tests since ;)
Let's cross fingers here