From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from d03relay04.boulder.ibm.com (d03relay04.boulder.ibm.com [9.17.195.106]) by e33.co.us.ibm.com (8.12.10/8.12.9) with ESMTP id iAI2IbJT528726 for ; Wed, 17 Nov 2004 21:18:38 -0500 Received: from d03av02.boulder.ibm.com (d03av02.boulder.ibm.com [9.17.195.168]) by d03relay04.boulder.ibm.com (8.12.10/NCO/VER6.6) with ESMTP id iAI2IaQC183804 for ; Wed, 17 Nov 2004 19:18:36 -0700 Received: from d03av02.boulder.ibm.com (loopback [127.0.0.1]) by d03av02.boulder.ibm.com (8.12.11/8.12.11) with ESMTP id iAI2Ia3Z008140 for ; Wed, 17 Nov 2004 19:18:36 -0700 Subject: Re: [Lhms-devel] [RFC] fix for hot-add enabled SRAT/BIOS and numa KVA areas From: keith In-Reply-To: <1100731354.12373.224.camel@localhost> References: <1100659057.26335.125.camel@knk> <20041117133315.92B7.YGOTO@us.fujitsu.com> <1100731354.12373.224.camel@localhost> Content-Type: text/plain Message-Id: <1100744315.26335.655.camel@knk> Mime-Version: 1.0 Date: Wed, 17 Nov 2004 18:18:35 -0800 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Dave Hansen Cc: Yasunori Goto , external hotplug mem list , linux-mm , Chris McDermott List-ID: On Wed, 2004-11-17 at 14:42, Dave Hansen wrote: > On Wed, 2004-11-17 at 14:33, Yasunori Goto wrote: > > But e820 probably indicates just memory areas which > > are already connected on the board, right? > > It's more than that. It indicates which were connected the first time > that the machine was powered on. If you suspend or hibernate the system > for some reason, it has to always present the e820 as it initially > appeared. You use the acpi events to handle the addition of memory. The e820 is what you use to boot with. > > BTW, I have a question. > > - Can x445 be attached memory without removing the node? > > In my concern machine, there is no physical space to > > hot add or exchange memory without physical removing > > the node. But, this SRAT table indicate that > > all of proximity is 0x01.... > > Or is it just logical attachment? > > You can't remove nodes, just DIMMs. The x440 hotplug is more like the > SMP case that I've always been concerned with. > -- Dave My hardware only supports addition of memory not removal. Thanks, Keith Mannthey -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: aart@kvack.org