From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f182.google.com (mail-pd0-f182.google.com [209.85.192.182]) by kanga.kvack.org (Postfix) with ESMTP id A6E266B0035 for ; Fri, 11 Jul 2014 16:21:24 -0400 (EDT) Received: by mail-pd0-f182.google.com with SMTP id p10so1615974pdj.13 for ; Fri, 11 Jul 2014 13:21:24 -0700 (PDT) Received: from mga01.intel.com (mga01.intel.com. [192.55.52.88]) by mx.google.com with ESMTP id j4si1760435pdb.273.2014.07.11.13.21.21 for ; Fri, 11 Jul 2014 13:21:22 -0700 (PDT) From: Andi Kleen Subject: Re: [RFC Patch V1 00/30] Enable memoryless node on x86 platforms References: <1405064267-11678-1-git-send-email-jiang.liu@linux.intel.com> <20140711082956.GC20603@laptop.programming.kicks-ass.net> <20140711153314.GA6155@kroah.com> Date: Fri, 11 Jul 2014 13:20:51 -0700 In-Reply-To: <20140711153314.GA6155@kroah.com> (Greg KH's message of "Fri, 11 Jul 2014 08:33:14 -0700") Message-ID: <8761j3ve8s.fsf@tassilo.jf.intel.com> MIME-Version: 1.0 Content-Type: text/plain Sender: owner-linux-mm@kvack.org List-ID: To: Greg KH Cc: Jiang Liu , Peter Zijlstra , Andrew Morton , Mel Gorman , David Rientjes , Mike Galbraith , "Rafael J . Wysocki" , Tony Luck , linux-mm@kvack.org, linux-hotplug@vger.kernel.org, linux-kernel@vger.kernel.org Greg KH writes: > On Fri, Jul 11, 2014 at 10:29:56AM +0200, Peter Zijlstra wrote: >> On Fri, Jul 11, 2014 at 03:37:17PM +0800, Jiang Liu wrote: >> > Any comments are welcomed! >> >> Why would anybody _ever_ have a memoryless node? That's ridiculous. > > I'm with Peter here, why would this be a situation that we should even > support? Are there machines out there shipping like this? We've always had memory nodes. A classic case in the old days was a two socket system where someone didn't populate any DIMMs on the second socket. There are other cases too. -Andi -- ak@linux.intel.com -- Speaking for myself only -- 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