Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762027AbYBLKgW (ORCPT ); Tue, 12 Feb 2008 05:36:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1761274AbYBLKgH (ORCPT ); Tue, 12 Feb 2008 05:36:07 -0500 Received: from fgwmail5.fujitsu.co.jp ([192.51.44.35]:56385 "EHLO fgwmail5.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752081AbYBLKgF (ORCPT ); Tue, 12 Feb 2008 05:36:05 -0500 Date: Tue, 12 Feb 2008 19:35:22 +0900 From: Yasunori Goto To: Ingo Molnar Subject: Re: [PATCH] [5/8] Fix logic error in 64bit memory hotadd Cc: tglx@linutronix.de, linux-kernel@vger.kernel.org, Andi Kleen In-Reply-To: <200802111405.04423.ak@suse.de> References: <20080211124625.GB23733@elte.hu> <200802111405.04423.ak@suse.de> X-Mailer-Plugin: BkASPil for Becky!2 Ver.2.068 Message-Id: <20080212190310.F9E8.Y-GOTO@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: Becky! ver. 2.27 [ja] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 787 Lines: 29 Hi Ingo-san. > > Does anyone even > > use memory hotplug currently? > > I don't know. IBM's powerpc box can memory hot-add/remove by dynamic partitioning. And our fujitsu server has memory hot-add feature (Ia-64). So, they are concrete user of memory hotplug. In x86, E8500 chipset has the feature of memory-hotplug. (I searched a data-sheet from intel site.) http://download.intel.com/design/chipsets/e8500/datashts/30674501.pdf (6.3.8 IMI Hot-Plug) So, it depends on how many server uses it, I think. Thanks. -- Yasunori Goto -- 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/