This directory will be reorganized in short order. For the moment, I
have a fairly well-tested version of the bootmem patch, along with
a patch on top of it that appeared to correct integer overflows
encountered on ARM, and which I believe are generally necessary for
correctness.

Tested architectures include:

(1) i386
(2) IA64
(3) ARM
(4) mipsel (DecStation 5000/200)