From owner-freebsd-current  Fri Feb 18 16: 8:13 2000
Delivered-To: freebsd-current@freebsd.org
Received: from apollo.backplane.com (apollo.backplane.com [216.240.41.2])
	by hub.freebsd.org (Postfix) with ESMTP id CC43137BB25
	for <current@FreeBSD.ORG>; Fri, 18 Feb 2000 16:08:08 -0800 (PST)
	(envelope-from dillon@apollo.backplane.com)
Received: (from dillon@localhost)
	by apollo.backplane.com (8.9.3/8.9.1) id QAA82090;
	Fri, 18 Feb 2000 16:08:05 -0800 (PST)
	(envelope-from dillon)
Date: Fri, 18 Feb 2000 16:08:05 -0800 (PST)
From: Matthew Dillon <dillon@apollo.backplane.com>
Message-Id: <200002190008.QAA82090@apollo.backplane.com>
To: Daniel Eischen <eischen@vigrid.com>
Cc: alc@cs.rice.edu, current@FreeBSD.ORG
Subject: Re: tentitive complete patch for MAP_GUARDED available
References:  <Pine.SUN.3.91.1000218172009.23954A-100000@pcnet1.pcnet.com>
Sender: owner-freebsd-current@FreeBSD.ORG
Precedence: bulk
X-Loop: FreeBSD.ORG

:
:Any problem if we overlay a previously MAP_GUARDED page with another
:(to save an extra guard page)?
:
:Dan Eischen
:eischen@vigrid.com

    Overlaying *anything* on top of a MAP_GUARDED mmap will break its
    functionality.  This is true of a MAP_STACK mmap as well.

					-Matt
					Matthew Dillon 
					<dillon@backplane.com>


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-current" in the body of the message