From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261193AbTD1QlP (ORCPT ); Mon, 28 Apr 2003 12:41:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261194AbTD1QlP (ORCPT ); Mon, 28 Apr 2003 12:41:15 -0400 Received: from e35.co.us.ibm.com ([32.97.110.133]:15599 "EHLO e35.co.us.ibm.com") by vger.kernel.org with ESMTP id S261193AbTD1QlM (ORCPT ); Mon, 28 Apr 2003 12:41:12 -0400 Message-ID: <3EAD5C44.103@us.ibm.com> Date: Mon, 28 Apr 2003 09:52:20 -0700 From: Dave Hansen User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.0) Gecko/20020623 Debian/1.0.0-0.woody.1 X-Accept-Language: en MIME-Version: 1.0 To: Andi Kleen CC: Carl-Daniel Hailfinger , Henti Smith , linux-kernel@vger.kernel.org, lse-tech@lists.sourceforge.net Subject: Re: [Lse-tech] Re: maximum possible memory limit .. References: <20030424200524.5030a86b.bain@tcsn.co.za> <3EAD27B2.9010807@gmx.net> <20030428141023.GC4525@Wotan.suse.de> <3EAD44BF.30808@gmx.net> <20030428151648.GF4525@Wotan.suse.de> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Andi Kleen wrote: >>and 64GB is available from vendors who are willing to apply the pgcl >>patch. > > Nobody is doing that. pgcl is 2.5 only and seems to be still quite instable. > Also it's extremly intrusive. Bill will probably wake up any time now and chime in, but don't forget all of the drivers. # grep -r PAGE_SIZE drivers/ | wc -l 893 Each one of those needs to be audited before pgcl is acceptable to a wide audience. We've already seen plenty of stuff that breaks. ext2/3 look to be all right, but I know that JFS is broken. -- Dave Hansen haveblue@us.ibm.com