> > When I try to compile some of the boot code with a 64bit daddr_t
> > I find that it exceeds the available space.
>
> Which architecture is this on and what is the size limit?

I've observed the same thing, and the ports which had this problem
last I looked was the pmax and mipsco ports.  I tried adding
LIBSA_FS_SINGLECOMPONENT to Makefile.booters on the pmax port, but
that didn't reduce the size sufficiently to squeeze it in under the
limit, and I could not see any other obvious fix to the problem.

Regards,

- H=E5vard