From owner-freebsd-alpha Sun Oct 10 12:21:41 1999 Delivered-To: freebsd-alpha@freebsd.org Received: from herring.nlsystems.com (nlsys.demon.co.uk [158.152.125.33]) by hub.freebsd.org (Postfix) with ESMTP id A3C3A15691 for ; Sun, 10 Oct 1999 12:19:54 -0700 (PDT) (envelope-from dfr@nlsystems.com) Received: from salmon.nlsystems.com (salmon.nlsystems.com [10.0.0.3]) by herring.nlsystems.com (8.9.3/8.8.8) with ESMTP id UAA90729; Sun, 10 Oct 1999 20:21:13 +0100 (BST) (envelope-from dfr@nlsystems.com) Date: Sun, 10 Oct 1999 20:21:13 +0100 (BST) From: Doug Rabson To: Michael Robinson Cc: freebsd-alpha@freebsd.org Subject: Re: How 64-bit is Alpha FreeBSD? In-Reply-To: <199910090933.RAA03434@netrinsics.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-alpha@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Sat, 9 Oct 1999, Michael Robinson wrote: > I'd like to know what kind of restrictions there are on how big an > mmap object can be, how big of an address space one process can have, and > other similar things which are limited by the 32-bit word size on the i386 > port. > > Any information, or pointers to information, will be greatly appreciated. We support a 42 bit user address space right now. This is a hardware limitation for older alphas but could be changed for newer hardware which could probably extend it to 55 bits. -- Doug Rabson Mail: dfr@nlsystems.com Nonlinear Systems Ltd. Phone: +44 181 442 9037 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message