Thanks. I'll seek these out next time I get to a university library. I'd like to read more good books on multiprocessing.
Two other OS texts in my collection that I really enjoyed were:
UNIX Internals: The New Frontiers
by Uresh Vahalia
https://openlibrary.org/works/OL2938389W/Unix_Internals
and,
The Design and Implementation of the 4.4 BSD Operating System
by McKusick, Bostic, Karels, and Quarterman
https://openlibrary.org/works/OL19501888W/The_design_and_imp...