K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2017-02-28T22:54:52.580484Z
K 7
svn:log
V 221
Initialize pcb_save for thread0.

Otherwise kernel traps on NULL dereference if fpu_kern(9) is used from the
thread0 context.

Reported by:	cem
Reviewed by:	cem, jhb
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week

END