> For sufficiently small values of "possible".  There are some features that
> really depend on virtual memory (the mbuf allocator, for example) which
> become quite tedious to re-implement without VM.  (Granted, my experience
> with that predates NetBSD by a lot (i.e. porting the 4.2BSD networking
> code to an operating system roughly equivalent to V7), but I doubt that
> things have come to rely any less on the wonders of VM since then...)

Actually, the mbuf code has changed quite a bit since 4.2BSD.   In any
case, what you're talking about doesn't decrease the possibility.
It's a simple matter of programming.

			       _MelloN_