[task #5489] GNU Mach's IPC / VM system

[Leonardo Lopes Pereira]

Follow-up Comment #1, task #5489 (project hurd):

The migration of GNU Mach VM to FreeBSD one is simply not possible, since we
need memory objects to do some stuff on user-space.

We need a new design to the Virtual Memory system, and Mach based ones are
not a good idea for microkernels. We could check some other systems, like L4,
that put the VM on the user-space, or Spring Nucleus, that has something more
similar to Mach VM. But, on any case, we need a redesign of that part.

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