K 10
svn:author
V 6
mlaier
K 8
svn:date
V 27
2010-12-09T21:02:22.336087Z
K 7
svn:log
V 418
Fix a long standing (from the original 4.4BSD lite sources) race between
vmspace_fork and vm_map_wire that would lead to "vm_fault_copy_wired: page
missing" panics.  While faulting in pages for a map entry that is being
wired down, mark the containing map as busy.  In vmspace_fork wait until the
map is unbusy, before we try to copy the entries.

Reviewed by:	kib
MFC after:	5 days
Sponsored by:	Isilon Systems, Inc.

END