diff --git a/share/man/man9/lock.9 b/share/man/man9/lock.9
index 23567c5e4c8d..f92ad8388345 100644
--- a/share/man/man9/lock.9
+++ b/share/man/man9/lock.9
@@ -1,6 +1,6 @@
-.\"     $NetBSD: lock.9,v 1.23 2004/10/04 19:12:52 rumble Exp $
+.\"     $NetBSD: lock.9,v 1.24 2007/02/11 16:05:08 ad Exp $
 .\"
-.\" Copyright (c) 2000 The NetBSD Foundation, Inc.
+.\" Copyright (c) 2000, 2007 The NetBSD Foundation, Inc.
 .\" All rights reserved.
 .\"
 .\" Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd May 25, 2004
+.Dd Febuary 11, 2007
 .Dt LOCK 9
 .Os
 .Sh NAME
@@ -80,6 +80,16 @@
 .Ft int
 .Fn spinlockmgr "struct lock *lock" "u_int flags" "struct simplelock *slock"
 .Sh DESCRIPTION
+.Sy The interfaces described in this manual page are obsolete
+.Sy and will be removed from a future version of the system. 
+.Pp
+.Sy Please see the
+.Xr condvar 9 ,
+.Xr mutex 9 ,
+.Sy and
+.Sy Xr rwlock 9
+.Sy manual pages for information on kernel synchronisation primitives.
+.Pp
 The
 .Nm
 functions provide synchronisation in the kernel by preventing multiple
@@ -385,7 +395,10 @@ Machine-dependent simplelock primitives are implemented within the
 file
 .Pa sys/arch/\*[Lt]arch\*[Gt]/include/lock.h .
 .Sh SEE ALSO
+.Xr condvar 9 ,
+.Xr mutex 9 ,
 .Xr pmap 9 ,
+.Xr rwlock 9, 
 .Xr spl 9 ,
 .Xr tsleep 9 ,
 .Xr uvm 9
diff --git a/share/man/man9/ltsleep.9 b/share/man/man9/ltsleep.9
index 6b65e36a71c7..9d5a2e0546c2 100644
--- a/share/man/man9/ltsleep.9
+++ b/share/man/man9/ltsleep.9
@@ -1,6 +1,6 @@
-.\"	$NetBSD: ltsleep.9,v 1.7 2005/12/24 21:27:22 perry Exp $
+.\"	$NetBSD: ltsleep.9,v 1.8 2007/02/11 16:05:08 ad Exp $
 .\"
-.\" Copyright (c) 1996, 2002 The NetBSD Foundation, Inc.
+.\" Copyright (c) 1996, 2002, 2007 The NetBSD Foundation, Inc.
 .\" All rights reserved.
 .\"
 .\" This code is derived from software contributed to The NetBSD Foundation
@@ -34,7 +34,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd December 24, 2005
+.Dd February 11, 2007
 .Dt LTSLEEP 9
 .Os
 .Sh NAME
@@ -51,6 +51,16 @@
 .Ft void
 .Fn "wakeup" "const void *ident"
 .Sh DESCRIPTION
+.Sy The interfaces described in this manual page are obsolete
+.Sy and will be removed from a future version of the system. 
+.Pp
+.Sy Please see the
+.Xr condvar 9 ,
+.Xr mutex 9 ,
+.Sy and
+.Sy Xr rwlock 9
+.Sy manual pages for information on kernel synchronisation primitives.
+.Pp
 These functions implement voluntary context switching.
 .Fn ltsleep
 and
@@ -189,8 +199,11 @@ returns because of a timeout it returns
 .Er EWOULDBLOCK .
 .Sh SEE ALSO
 .Xr sigaction 2 ,
+.Xr condvar 9 ,
 .Xr hz 9 ,
-.Xr lock 9
+.Xr lock 9 ,
+.Xr mutex 9 ,
+.Xr rwlock 9 
 .Sh HISTORY
 The sleep/wakeup process synchronization mechanism is very old.
 It appeared in a very early version of Unix.