Drop the tracking down to the pmap layer, with optimizations to only track necessary pages. This should give a (slight) performance improvement, as well as a stability improvement, as the tracking is already mostly handled by the pmap layer.
Drop the tracking down to the pmap layer, with optimizations to only track necessary pages. This should give a (slight) performance improvement, as well as a stability improvement, as the tracking is already mostly handled by the pmap layer.