[pastage]

Linux required MMU from the start, uCLinux and nommu patches does work. I used it a long time ago it was great, but there are lots of small things like stack size is set compile time, memory mapped io does not work... You do get lots of functionality from Linux from my short three day experience with Zephyr I like uCLinux a lot better at least on STM32.

Xous seemed very nice together with Precursor which is the only platform I have seen it run on

https://precursor.dev/ https://www.kernel.org/doc/Documentation/nommu-mmap.txt