> I think the solution here is that all device access should be done > through hurdish interfaces. Only the parent would have real access to > the mach devices. The subhurd would have to have access given to it, > eg via mach ports. This also contributes to portability, since you'd > have defined interfaces for the device drivers to export.
You appear not to understand is what a subhurd is; do not consider it a child, it is a peer to the original Hurd.
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