I wouldn't try to reroute the system calls but rather write trivial
drivers
using a file for example as the "hardware" for the root partition. This
wouldn't
be that ugly.
> is pretty ugly. Worse yet, I see no obvious way for this 'user-mode'
> kernel to do the necessary memory remapping it would need for its
> processes. Being run inside of the same real process, they would have the
> same view on memory.
Yes this would need a bit of more consideration. However I'm quite sure
that
it could be done y just reserving a sufficiently bit are of shm and
doing all
them memmory management upon this should be possible, since even the
normal kernel does provide much of this by plain software instead of
using the
proessors hardware for this....
--Marcin
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