From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail143.messagelabs.com (mail143.messagelabs.com [216.82.254.35]) by kanga.kvack.org (Postfix) with ESMTP id ABC5C6B004D for ; Fri, 13 Nov 2009 06:35:13 -0500 (EST) Date: Fri, 13 Nov 2009 12:35:09 +0100 From: Andi Kleen Subject: Re: [PATCH] Allow memory hotplug and hibernation in the same kernel Message-ID: <20091113113509.GB30880@basil.fritz.box> References: <20091113105944.GA16028@basil.fritz.box> <20091113200745.33CE.A69D9226@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20091113200745.33CE.A69D9226@jp.fujitsu.com> Sender: owner-linux-mm@kvack.org To: KOSAKI Motohiro Cc: Andi Kleen , akpm@linux-foundation.org, linux-mm@kvack.org, gerald.schaefer@de.ibm.com, rjw@sisk.pl, linux-kernel@vger.kernel.org, Yasunori Goto List-ID: On Fri, Nov 13, 2009 at 08:13:23PM +0900, KOSAKI Motohiro wrote: > (cc to goto-san) > > > Allow memory hotplug and hibernation in the same kernel > > > > Memory hotplug and hibernation was excluded in Kconfig. This is obviously > > a problem for distribution kernels who want to support both in the same > > image. > > Sure. > > This exclusion is nearly meaningless. if anybody remove cpu, memory and/or > various peripheral from hibernated machine. the system might not resume. > it's obvious. memory is not special. The main motivation for the patch is really just to allow both in the same kernel (so the Kconfig change). The actual exclusion is not really very interesting as you point out. Otherwise memory hotadd is not usable in universal kernel that runs on laptops too. -Andi -- 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: email@kvack.org