Unix Kernel: The Battle for Control.

Avadis Tevanian, Jr., Richard F. Rashid, David B. Golub, David L. Black, Eric Cooper, and Michael W. Young. Mach Threads and the Unix Kernel: The Battle for Control. [postscript] [doc] Technical Report CMU-CS-87-149, School of Computer Science, Carnegie Mellon University, August 1987.

This paper examines a kernel implemented lightweight process mechanism built for the Mach operating system. The pros and cons of such a mechanism are discussed along with the problems encountered during its implementation.