Presumably because the process is root and was good enough to
mlock everything down?
> To play nice with those nice m68k and sparc64 systems, is there an
> equivalent that the device driver should be using?
Well, the invariant that all of physical memory is mapped somewhere
in kernel space is kept. So if you grovel through ptes and do the
right phys_to_virt translation, of course it will work.
r~
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