Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261247AbVELEFH (ORCPT ); Thu, 12 May 2005 00:05:07 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261283AbVELEFH (ORCPT ); Thu, 12 May 2005 00:05:07 -0400 Received: from picard.ine.co.th ([203.152.41.3]:19114 "EHLO picard.ine.co.th") by vger.kernel.org with ESMTP id S261247AbVELEFA (ORCPT ); Thu, 12 May 2005 00:05:00 -0400 Subject: Re: kernel (64bit) 4GB memory support From: Rudolf Usselmann Reply-To: rudi@asics.ws To: Stefan Smietanowski Cc: Lennart Sorensen , Zwane Mwaikambo , "Frank Denis (Jedi/Sector One)" , linux-kernel@vger.kernel.org, Jeff Garzik In-Reply-To: <4282D3E1.80303@stesmi.com> References: <20041216074905.GA2417@c9x.org> <1103213359.31392.71.camel@cpu0> <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> Content-Type: text/plain Organization: ASICS.ws - Solutions for your ASICS & FPGA needs - Date: Thu, 12 May 2005 11:04:53 +0700 Message-Id: <1115870693.8406.53.camel@cpu10> Mime-Version: 1.0 X-Mailer: Evolution 2.0.4 (2.0.4-4) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1501 Lines: 41 On Thu, 2005-05-12 at 05:56 +0200, Stefan Smietanowski wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Lennart Sorensen wrote: > > On Wed, May 11, 2005 at 02:48:42AM +0700, Rudolf Usselmann wrote: > > > >>I do see the full 4G. With Fedora Core 2 32bit, I can use all > >>4G as well. All my problems started when I "upgraded" to x86_64 ... > > > > > > 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. > > 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. > > // Stefan I'm using whatever is available on www.kernerl.org :*) Sorry I am totally lost what the above terminology means. Is that a configuration option that I should try, or a totally different branch of the kernel ? Thanks ! rudi ============================================================= Rudolf Usselmann, ASICS World Services, http://www.asics.ws Your Partner for IP Cores, Design, Verification and Synthesis - 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/