K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2018-07-05T17:28:06.250207Z
K 7
svn:log
V 360
Extend r335969 to superpages.

It is possible that a fictitious unmanaged userspace mapping of
superpage is created on x86, e.g. by pmap_object_init_pt(), with the
physical address outside the vm_page_array[] coverage.

Noted and reviewed by:	alc
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D16085

END