very cool. i recall in one of my classes at unversity (i did a compsci degree) we used nachos (https://en.wikipedia.org/wiki/Not_Another_Completely_Heuristic_Op

very cool. i recall in one of my classes at unversity (i did a compsci degree) we used nachos (https://en.wikipedia.org/wiki/Not_Another_Completely_Heuristic_Operating_System https://en.wikipedia.org/wiki/Not_Another_Completely_Heurist...) and i have vague memories of implementing some kind of virtual memory system with a page table. i also did a microkernel message-passing rtos for the i386 in another class but if i recall correctly, that particular os didn't have to support dynamic allocation (or maybe i have forgotten - it was a long time ago). i am not sure how useful such a limited system would be in practice. thanks for the information. i am a high level programmer by trade these days, but given enough free time, i think that it would be fun to learn about the internals of the linux kernel in some depth. frankly, it intimidates me a bit (perhaps it should, im not sure).