> The code makes no attempt to align the prefetch address to anything.
> Should it?
> What happens if a prefetch spills over the end of the page and
Doesn't hurt, prefetch instruction never cause page faults.
BUT: Prefetch doesn't preload the TLB. If the TLB entry for the kmap is
not in the TLB, all prefetch instructions are treated as nops.(on pIII).
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