> since Minix 3 is still pretty crude, its one I'm avoiding. [...] Pity Minix itself has never
> been as well fleshed out as some of the process control OS' based on the concept.

Interestingly, in 2015 Intel‘s Management Engine was switched from running ThreadX on ARC to running MINIX 3 on x86.

"Starting with ME 11, it is based on the Intel Quark x86-based 32-bit CPU and runs the MINIX 3."
https://en.wikipedia.org/wiki/Intel_Active_Management_Technology#Hardware

"MINIX 3 is believed to be used in the Intel ME found in Intel PCH beginning with the introduction of ME 11 which is used with Skylake/Kaby Lake processors."
https://en.wikipedia.org/wiki/MINIX_3

Tanenbaum's open letter to Intel:
http://www.cs.vu.nl/~ast/intel/

[ Edited by Andreas_Wolf 08.11.2017 - 15:19 ]