From owner-freebsd-questions Thu Feb 21 13:55:16 2002 Delivered-To: freebsd-questions@freebsd.org Received: from mailf.telia.com (mailf.telia.com [194.22.194.25]) by hub.freebsd.org (Postfix) with ESMTP id 6158B37B405 for ; Thu, 21 Feb 2002 13:55:09 -0800 (PST) Received: from d1o913.telia.com (d1o913.telia.com [195.252.44.241]) by mailf.telia.com (8.11.6/8.11.6) with ESMTP id g1LLt7B24869 for ; Thu, 21 Feb 2002 22:55:07 +0100 (CET) Received: from falcon.midgard.homeip.net (h185n2fls20o913.telia.com [212.181.163.185]) by d1o913.telia.com (8.8.8/8.8.8) with SMTP id WAA23149 for ; Thu, 21 Feb 2002 22:55:07 +0100 (CET) Received: (qmail 31544 invoked by uid 1001); 21 Feb 2002 21:55:05 -0000 Date: Thu, 21 Feb 2002 22:55:05 +0100 From: Erik Trulsson To: "Alex (DDS)" Cc: =?iso-8859-1?Q?S=F8ren?= Neigaard , Alex , questions@freebsd.org Subject: Re: OT: Re: Max RAM supported by Hardware Message-ID: <20020221215504.GA31481@student.uu.se> Mail-Followup-To: "Alex (DDS)" , =?iso-8859-1?Q?S=F8ren?= Neigaard , Alex , questions@freebsd.org References: <1556477954.20020220210026@e-box.dk> <14217053982.20020220215646@cybertron.tmfweb.nl> <15518324328.20020220221756@cybertron.tmfweb.nl> <20020220220028.GA21515@student.uu.se> <193651536.20020221082100@e-box.dk> <3C75152A.7040705@dds.nl> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3C75152A.7040705@dds.nl> User-Agent: Mutt/1.3.27i Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Thu, Feb 21, 2002 at 04:41:30PM +0100, Alex (DDS) wrote: > > > > > > >ET> On Alpha the max that is supported is 2G. I am not sure why that > >ET> limitation exists but it does. > > > >Strange - It should be able to support much much more. I guess FreeBSD > >is mostly for i386, right? Not much being done for other platforms? More or less, yes. > > > The Alpha processor proberbly just doesn't support it. Thus doesn't have > the base and offset regestries and memory thats able to handle it. Nope, the Alpha processors support much more memory than that. The 21064 has 43-bit virtual and 34-bit physical addresses, while the 21164 has 43-bit virtual and 40-bit physical. The Alpha architecture actually supports using up to 64-bit virtual addresses but I don't think any of the current implementations actually implement that. -- Erik Trulsson ertr1013@student.uu.se To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message