From owner-freebsd-hackers  Tue Dec 10 12:34:45 1996
Return-Path: <owner-hackers>
Received: (from root@localhost)
          by freefall.freebsd.org (8.8.4/8.8.4) id MAA27864
          for hackers-outgoing; Tue, 10 Dec 1996 12:34:45 -0800 (PST)
Received: from dyson.iquest.net (dyson.iquest.net [198.70.144.127])
          by freefall.freebsd.org (8.8.4/8.8.4) with ESMTP id MAA27859
          for <hackers@freebsd.org>; Tue, 10 Dec 1996 12:34:42 -0800 (PST)
Received: (from root@localhost) by dyson.iquest.net (8.8.2/8.6.9) id PAA00573; Tue, 10 Dec 1996 15:33:11 -0500 (EST)
From: John Dyson <dyson@dyson.iquest.net>
Message-Id: <199612102033.PAA00573@dyson.iquest.net>
Subject: Re: Multiple Buffer allocation of Shared Memory
To: terry@lambert.org (Terry Lambert)
Date: Tue, 10 Dec 1996 15:33:11 -0500 (EST)
Cc: scrappy@hub.org, erich@lodgenet.com, hackers@freebsd.org
In-Reply-To: <199612101843.LAA04595@phaeton.artisoft.com> from "Terry Lambert" at Dec 10, 96 11:43:36 am
Reply-To: dyson@freebsd.org
X-Mailer: ELM [version 2.4 PL24 ME8]
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Sender: owner-hackers@freebsd.org
X-Loop: FreeBSD.org
Precedence: bulk

> 
> John?  How does mmap'ing /dev/zero work?
> 
It was hacked in, as it has not previously existed in BSD.  (MAP_ANON
is the canonically correct way in BSD.)  Does POSIX require /dev/zero?

John