I worked on a prototype to add kernel-mediated segmentation to linux. its easy to associate a segment map to a thread, and manage maps in virtual addresses and

I worked on a prototype to add kernel-mediated segmentation to linux. its easy to associate a segment map to a thread, and manage maps in virtual addresses and provide a call gate which is a registered procedure that can change a map. making it airtight and useful in an existing programming environment is less straightforward