Nick Downing <downing.nick(a)gmail.com> writes:
By contrast the MIT guy probably was working with a
much smaller/more
economical system that didn't maintain a kernel stack per process.
No. PCLSRing is a feature of MIT' ITS operating system, and it does
have a separate stack for the kernel.
Here is a copy of Alan Bawdens paper about PCLSRing:
http://fare.tunes.org/tmp/emergent/pclsr.htm