diff --git a/share/man/man9/Makefile b/share/man/man9/Makefile
index 9e3b14807a03..589177171757 100644
--- a/share/man/man9/Makefile
+++ b/share/man/man9/Makefile
@@ -1,8 +1,9 @@
 #	$FreeBSD$
 
 MAN9=	at_shutdown.9 at_fork.9 at_exit.9 cd.9 copy.9 devfs_add_devswf.9 \
-	devfs_link.9 fetch.9 ifnet.9 intro.9 panic.9 rtalloc.9 rtentry.9 \
-	scsiconf.9 sd.9 sleep.9 spl.9 st.9 store.9 style.9 timeout.9 uio.9
+	devfs_link.9 fetch.9 ifnet.9 intro.9 panic.9 psignal.9 rtalloc.9 \
+	rtentry.9 scsiconf.9 sd.9 sleep.9 spl.9 st.9 store.9 style.9 \
+	timeout.9 uio.9
 
 MLINKS+= copy.9 copyin.9 copy.9 copyout.9 copy.9 copystr.9 copy.9 copyinstr.9
 MLINKS+= fetch.9 fubyte.9 fetch.9 fusword.9 fetch.9 fuswintr.9 fetch.9 fuword.9
@@ -10,6 +11,7 @@ MLINKS+= at_shutdown.9 rm_at_shutdown.9
 MLINKS+= at_exit.9 rm_at_exit.9
 MLINKS+= at_fork.9 rm_at_fork.9
 MLINKS+= ifnet.9 ifaddr.9 ifnet.9 ifqueue.9 ifnet.9 if_data.9
+MLINKS+= psignal.9 pgsignal.9 psignal.9 gsignal.9
 MLINKS+= rtalloc.9 rtalloc_ign.9 rtalloc.9 rtalloc1.9
 MLINKS+= sleep.9 tsleep.9 sleep.9 wakeup.9
 MLINKS+= spl.9 splbio.9 spl.9 splclock.9 spl.9 splhigh.9 spl.9 splimp.9
diff --git a/share/man/man9/psignal.9 b/share/man/man9/psignal.9
new file mode 100644
index 000000000000..9f32d9bebd2b
--- /dev/null
+++ b/share/man/man9/psignal.9
@@ -0,0 +1,138 @@
+.\"	$NetBSD: psignal.9,v 1.1 1996/06/22 22:57:35 pk Exp $
+.\"
+.\" Copyright (c) 1996 The NetBSD Foundation, Inc.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to The NetBSD Foundation
+.\" by Paul Kranenburg.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"        This product includes software developed by the NetBSD
+.\"        Foundation, Inc. and its contributors.
+.\" 4. Neither the name of The NetBSD Foundation nor the names of its
+.\"    contributors may be used to endorse or promote products derived
+.\"    from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+.\" PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
+.\" LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+.\" POSSIBILITY OF SUCH DAMAGE.
+.\"
+.Dd June 22, 1996
+.Dt PSIGNAL 9
+.Os
+.Sh NAME
+.Nm psignal ,
+.Nm pgsignal ,
+.Nm gsignal
+.Nd post signal to a process or process group
+.Sh SYNOPSIS
+.Ft void
+.Fn "psignal" "struct proc *p" "int signum"
+.Ft void
+.Fn "pgsignal" "struct pgrp *pgrp" "int signum" "int checkctty"
+.Ft void
+.Fn "gsignal" "int pgid" "int signum"
+.Sh DESCRIPTION
+These functions post a signal to one or more processes. The argument
+.Fa signum
+common to all three functions should be in the range
+.Bq 1- Ns Dv NSIG .
+.Pp
+The
+.Fn psignal
+function posts signal number
+.Fa signum
+to the process represented by the process structure
+.Fa p .
+With a few exceptions noted below, the target process signal disposition is
+updated and is marked as runnable, so further handling of the signal is done
+in the context of the target process after a context switch. Note that
+.Fn psignal
+does not by itself cause a context switch to happen.
+.Pp
+The target process is not marked as runnable in the following cases:
+.Bl -bullet -offset indent
+.It
+The target process is sleeping uninterruptibly. The signal will be
+noticed when the process returns from the system call or trap.
+.It
+The target process is currently ignoring the signal.
+.It
+If a stop signal is sent to a sleeping process that takes the
+default action
+.Pq see Xr sigaction 2 ,
+the process is stopped without awakening it.
+.It
+.Dv SIGCONT
+restarts a stopped process
+.Pq or puts them back to sleep
+regardless of the signal action
+.Pq e.g., blocked or ignored .
+.El
+.Pp
+If the target process is being traced
+.Fn psignal
+behaves as if the target process were taking the default action for
+.Fa signum .
+This allows the tracing process to be notified of the signal.
+.Pp
+The
+.Fn pgsignal
+function posts signal number
+.Fa signum
+to each member of the process group described by
+.Fa pgrp .
+If
+.Fa checkctty
+is non-zero, the signal will be posted only to processes that have
+a controlling terminal.
+.Fn pgsignal
+is implemented by walking along the process list headed by the field
+.Li pg_members
+of the process group structure
+pointed at by
+.Fa pgrp
+and calling
+.Fn psignal
+as appropriate. If
+.Fa pgrp
+is
+.Dv NULL
+no action is taken.
+.Pp
+The
+.Fn gsignal
+function posts signal number
+.Fa signum
+to each member of the process group identified by the group id
+.Fa pgid .
+.Fn gsignal
+first finds the group structure associated with
+.Fa pgid ,
+then invokes
+.Fn pgsignal
+with the argument
+.Fa checkctty
+set to zero. If
+.Fa pgid
+is zero no action is taken.
+.Sh SEE ALSO
+.Xr sigaction 2 ,
+.Xr tsleep 9