Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262008AbVELPOf (ORCPT ); Thu, 12 May 2005 11:14:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262010AbVELPO3 (ORCPT ); Thu, 12 May 2005 11:14:29 -0400 Received: from holomorphy.com ([66.93.40.71]:61571 "EHLO holomorphy.com") by vger.kernel.org with ESMTP id S262008AbVELPOZ (ORCPT ); Thu, 12 May 2005 11:14:25 -0400 Date: Thu, 12 May 2005 08:13:45 -0700 From: William Lee Irwin III To: Rudolf Usselmann Cc: Stefan Smietanowski , Lennart Sorensen , Zwane Mwaikambo , "Frank Denis (Jedi/Sector One)" , linux-kernel@vger.kernel.org, Jeff Garzik Subject: Re: kernel (64bit) 4GB memory support Message-ID: <20050512151345.GG9304@holomorphy.com> References: <1103646195.3652.196.camel@cpu0> <1103647158.3659.199.camel@cpu0> <1115654185.3296.658.camel@cpu10> <20050509200721.GE2297@csclub.uwaterloo.ca> <1115754522.4409.16.camel@cpu10> <20050511142745.GQ2281@csclub.uwaterloo.ca> <4282D3E1.80303@stesmi.com> <1115870693.8406.53.camel@cpu10> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1115870693.8406.53.camel@cpu10> Organization: The Domain of Holomorphy User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 917 Lines: 20 On Thu, 2005-05-12 at 05:56 +0200, Stefan Smietanowski wrote: >>> In 32bit it probably uses the PSE36 extensions or something, which isn't >>> the same thing as flat 64bit memory access. It could just be a matter >>> of needing a memory hole somewhere for PCI space or something. I only >>> have 1G in my 64bit machine so I haven't got near these problems. On Thu, May 12, 2005 at 11:04:53AM +0700, Rudolf Usselmann wrote: >> I don't recall him saying he's changed kernel from the default redhat >> kernel in which case he's running the RedHat 4G/4G split kernel and not >> using PSE/PAE. PSE36 is 4MB pages (no 4KB pages allowed!), 36-bit physical addresses. -- wli - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/