From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 2 May 2002 13:24:06 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 2 May 2002 13:24:06 -0400 Received: from e2.ny.us.ibm.com ([32.97.182.102]:16378 "EHLO e2.ny.us.ibm.com") by vger.kernel.org with ESMTP id ; Thu, 2 May 2002 13:24:04 -0400 Message-ID: <3CD167A7.3EFEC1B5@vnet.ibm.com> Date: Thu, 02 May 2002 11:21:59 -0500 From: Dave Engebretsen X-Mailer: Mozilla 4.77 [en] (X11; U; Linux 2.4.9-12 i686) X-Accept-Language: en MIME-Version: 1.0 To: William Lee Irwin III CC: linux-kernel@vger.kernel.org Subject: Re: Bug: Discontigmem virt_to_page() [Alpha,ARM,Mips64?] In-Reply-To: <20020426192711.D18350@flint.arm.linux.org.uk> <20020429153500.B28887@dualathlon.random> <20020501042341.G11414@dualathlon.random> <20020501180547.GA1212440@sgi.com> <20020502011750.M11414@dualathlon.random> <20020502002010.GA14243@krispykreme> <20020502030113.Q11414@dualathlon.random> <20020502152825.GE10495@krispykreme> <20020502163135.GI32767@holomorphy.com> X-MIMETrack: Itemize by SMTP Server on d27ml101/27/M/IBM(Release 5.0.10 |March 22, 2002) at 05/02/2002 12:23:24 PM, Serialize by Router on d27ml101/27/M/IBM(Release 5.0.10 |March 22, 2002) at 05/02/2002 12:23:26 PM, Serialize complete at 05/02/2002 12:23:26 PM Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org William Lee Irwin III wrote: > > On Fri, May 03, 2002 at 01:28:25AM +1000, Anton Blanchard wrote: > > Also when we do hotplug memory support will discontigmem be able to > > efficiently handle memory turning up all over the place in the memory > > map? > > Would the flip side of that coin perhaps be implementing a way to be a > good logically partitioned citizen and cooperatively offline memory? > > Cheers, > Bill Yes, both add and remove are needed to be a good citizen. One could spend all kinds of time coming up with good huristicts to do that automatically :) At a mimimum, manual off line of memory would be nice. Dave.