From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263452AbTLDSbs (ORCPT ); Thu, 4 Dec 2003 13:31:48 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263785AbTLDSbq (ORCPT ); Thu, 4 Dec 2003 13:31:46 -0500 Received: from e6.ny.us.ibm.com ([32.97.182.106]:1706 "EHLO e6.ny.us.ibm.com") by vger.kernel.org with ESMTP id S263452AbTLDSaH (ORCPT ); Thu, 4 Dec 2003 13:30:07 -0500 Date: Thu, 04 Dec 2003 10:29:53 -0800 From: "Martin J. Bligh" To: Jesse Barnes , IWAMOTO Toshihiro cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: memory hotremove prototype, take 3 Message-ID: <14880000.1070562593@flay> In-Reply-To: <20031204182729.GA7965@sgi.com> References: <20031201034155.11B387007A@sv1.valinux.co.jp> <187360000.1070480461@flay> <20031204035842.72C9A7007A@sv1.valinux.co.jp> <152440000.1070516333@10.10.2.4> <20031204154406.7FC587007A@sv1.valinux.co.jp> <20031204182729.GA7965@sgi.com> X-Mailer: Mulberry/2.1.2 (Linux/x86) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org >> IIRC, memory is contiguous within a NUMA node. I think Goto-san will >> clarify this issue when his code gets ready. :-) > > Not on all systems. On sn2 we use ia64's virtual memmap to make memory > within a node appear contiguous, even though it may not be. Wasn't there a plan to get rid of that though? I forget what it was, probably using CONFIG_NONLINEAR too ... ? M.