"S. N. Cho" <sucho2@vt.edu> writes:
> It doesn't print out any errors for computer just locks up and
> freezes. The freezing happens while pretty much in the building
> process. Sometimes it freezes after 1 hour into building, sometimes

Can you try:

1) Building a kernel with ddb in it
and
2) Doing your build that causes the freeze on the bare console (not
   under X!) so that you can see everything, and
3) When the freeze happens, hit ctl-alt-esc and drop into ddb and do a
   trace?

Perry