On Wed, Jan 22, 2020 at 8:15 AM Paul Ruizendaal <pnr@planet.nl> wrote:

Hence it is unlikely that the Onyx had any form of demand paging (other than extending the stack in PDP11-like fashion).

Actually, more importantly, it was a pure V7 port. BSD 3.0 (Vax - first demand paging support for UNIX) was being created and had not yet released.