K 10
svn:author
V 6
emaste
K 8
svn:date
V 27
2015-01-12T18:38:09.809035Z
K 7
svn:log
V 164
Avoid crash in vt_blank() and improve performance

MFC of r268771 (partial), r268796

PR:		196510
Reported by:	Andre Albsmeier
Sponsored by:	The FreeBSD Foundation

END