From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from palinux.external.hp.com ([192.25.206.14]:48675 "EHLO mail.parisc-linux.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752628Ab2H2Nay (ORCPT ); Wed, 29 Aug 2012 09:30:54 -0400 Date: Wed, 29 Aug 2012 07:24:16 -0600 From: Matthew Wilcox To: TJ Cc: linux-pci@vger.kernel.org Subject: Re: Limiting BAR resource region size allocation (device claims 2x what it needs) ? Message-ID: <20120829132415.GA21160@parisc-linux.org> References: <503E1027.6050104@iam.tj> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <503E1027.6050104@iam.tj> Sender: linux-pci-owner@vger.kernel.org List-ID: On Wed, Aug 29, 2012 at 01:50:47PM +0100, TJ wrote: > The CPU is 64-bit but the i945PM northbridge is 32-bit (so no physical > 4GB addressing). With PCI allocations as they are the system is limited to 2GB of RAM under Linux (3GB on Windows Vista). According to the laptop specs, it's limited to 2GB RAM: http://www.sony.co.uk/support/en/product/VGN-FE41Z/specifications Personally, I'm not terribly excited about doing much work to enhance a 6 year old laptop... -- Matthew Wilcox Intel Open Source Technology Centre "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step."