K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2018-08-20T19:07:57.735822Z
K 7
svn:log
V 270
Always initialize PCPU kcr3 for vmspace0 pmap.

If an exception or NMI occurs before CPU switched to a pmap different
from vmspace0, PCPU kcr3 is left zero for pti config, which causes
triple-fault in the handler.

Sponsored by:	The FreeBSD Foundation
MFC after:	3 days

END