K 10
svn:author
V 2
br
K 8
svn:date
V 27
2016-11-14T18:30:03.474859Z
K 7
svn:log
V 186
Check if L2 entry exists for the given VA before loading L3 entry.

This is a fix for a panic that was easy to reproduce executing
"(/bin/ls &)" in the shell.

Sponsored by:	DARPA, AFRL

END