-.\" $OpenBSD: poll.2,v 1.36 2018/08/18 16:55:30 cheloha Exp $
+.\" $OpenBSD: poll.2,v 1.37 2021/11/16 13:46:16 visa Exp $
.\"
.\" Copyright (c) 1994 Jason R. Thorpe
.\" All rights reserved.
.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\"
-.Dd $Mdocdate: August 18 2018 $
+.Dd $Mdocdate: November 16 2021 $
.Dt POLL 2
.Os
.Sh NAME
and
.Dv POLLRDBAND
flags are also equivalent.
-.Pp
-Internally to the kernel,
-.Fn poll
-and
-.Fn ppoll
-work poorly if multiple processes wait on the same file descriptor.
-.\" $OpenBSD: select.2,v 1.43 2020/08/13 01:00:03 cheloha Exp $
+.\" $OpenBSD: select.2,v 1.44 2021/11/16 13:46:16 visa Exp $
.\" $NetBSD: select.2,v 1.5 1995/06/27 22:32:28 cgd Exp $
.\"
.\" Copyright (c) 1983, 1991, 1993
.\"
.\" @(#)select.2 8.2 (Berkeley) 3/25/94
.\"
-.Dd $Mdocdate: August 13 2020 $
+.Dd $Mdocdate: November 16 2021 $
.Dt SELECT 2
.Os
.Sh NAME
.Fn select ,
and using
.Xr timersub 3 .
-.Pp
-Internally to the kernel,
-.Fn select
-and
-.Fn pselect
-work poorly if multiple processes wait on the same file descriptor.