Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754813Ab3EZSMO (ORCPT ); Sun, 26 May 2013 14:12:14 -0400 Received: from mail-we0-f169.google.com ([74.125.82.169]:55222 "EHLO mail-we0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754737Ab3EZSMN (ORCPT ); Sun, 26 May 2013 14:12:13 -0400 Date: Sun, 26 May 2013 20:12:09 +0200 From: Michal Hocko To: Wanpeng Li Cc: Andrew Morton , KAMEZAWA Hiroyuki , KOSAKI Motohiro , David Rientjes , Jiang Liu , Tang Chen , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Greg Kroah-Hartman , stable@vger.kernel.org Subject: Re: [patch v2 3/6] mm/memory_hotplug: Disable memory hotremove for 32bit Message-ID: <20130526181209.GB20270@dhcp22.suse.cz> References: <1369547921-24264-1-git-send-email-liwanp@linux.vnet.ibm.com> <1369547921-24264-3-git-send-email-liwanp@linux.vnet.ibm.com> <20130526090054.GE10651@dhcp22.suse.cz> <20130526090617.GA28604@hacker.(null)> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20130526090617.GA28604@hacker.(null)> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 944 Lines: 25 On Sun 26-05-13 17:06:17, Wanpeng Li wrote: > On Sun, May 26, 2013 at 11:00:54AM +0200, Michal Hocko wrote: > >On Sun 26-05-13 13:58:38, Wanpeng Li wrote: > >> As KOSAKI Motohiro mentioned, memory hotplug don't support 32bit since > >> it was born, > > > >Why? any reference? This reasoning is really weak. > > > > http://marc.info/?l=linux-mm&m=136953099010171&w=2 I have seen the email but that email just states that the feature is broken. Maybe it is obvious to you _what_ is actually broken but it doesn't need to be others especially those who would be reading such changelog later. So if you consider this configuration broken then be specific what is broken. -- Michal Hocko SUSE Labs -- 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/