From owner-freebsd-hackers Thu Dec 13 19:44: 5 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from mail.hiwaay.net (fly.HiWAAY.net [208.147.154.56]) by hub.freebsd.org (Postfix) with ESMTP id 7C2C337B417 for ; Thu, 13 Dec 2001 19:44:03 -0800 (PST) Received: from bsd.havk.org (user-24-214-88-13.knology.net [24.214.88.13]) by mail.hiwaay.net (8.12.1/8.12.1) with ESMTP id fBE3hvBZ018686; Thu, 13 Dec 2001 21:44:00 -0600 (CST) Received: by bsd.havk.org (Postfix, from userid 1001) id 3CC981A786; Thu, 13 Dec 2001 21:43:53 -0600 (CST) Date: Thu, 13 Dec 2001 21:43:52 -0600 From: Steve Price To: Warner Losh Cc: hackers@FreeBSD.ORG Subject: Re: MMU-less FreeBSD Message-ID: <20011213214352.C597@bsd.havk.org> References: <20011213174347.V597@bsd.havk.org> <200112140119.fBE1JgM49561@harmony.village.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <200112140119.fBE1JgM49561@harmony.village.org>; from imp@harmony.village.org on Thu, Dec 13, 2001 at 06:19:42PM -0700 X-Operating-System: FreeBSD 4.4-STABLE i386 Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Thu, Dec 13, 2001 at 06:19:42PM -0700, Warner Losh wrote: > > Hard. Lots of stuff relies on mmap, which basiclly requires an MMU or > other tricks. The other tricks can be somewhat expensive... That's sort of what I figured. WRS and possible others use BSD as a basis for their embedded OS on archs without an MMU, right? Got any pointers to these "tricks" you talk about? Thanks. -steve To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message