Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753884Ab2JRDDE (ORCPT ); Wed, 17 Oct 2012 23:03:04 -0400 Received: from cn.fujitsu.com ([222.73.24.84]:26844 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1753828Ab2JRDDC (ORCPT ); Wed, 17 Oct 2012 23:03:02 -0400 X-IronPort-AV: E=Sophos;i="4.80,605,1344182400"; d="scan'208";a="6019697" Message-ID: <507F6EB3.7030705@cn.fujitsu.com> Date: Thu, 18 Oct 2012 10:51:31 +0800 From: Tang Chen User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:12.0) Gecko/20120430 Thunderbird/12.0.1 MIME-Version: 1.0 To: David Rientjes CC: Andrew Morton , Peter Zijlstra , mingo@redhat.com, miaox@cn.fujitsu.com, wency@cn.fujitsu.com, linux-kernel@vger.kernel.org, linux-numa@vger.kernel.org Subject: Re: [PATCH] Do not use cpu_to_node() to find an offlined cpu's node. References: <1349665183-11718-1-git-send-email-tangchen@cn.fujitsu.com> <1349780256.7880.12.camel@twins> <1349815676.7880.85.camel@twins> <1349860216.7880.105.camel@twins> <20121010133709.7eaefcdb.akpm@linux-foundation.org> In-Reply-To: X-MIMETrack: Itemize by SMTP Server on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2012/10/18 10:52:14, Serialize by Router on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2012/10/18 10:52:24, Serialize complete at 2012/10/18 10:52:24 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1143 Lines: 32 On 10/18/2012 08:52 AM, David Rientjes wrote: > On Wed, 10 Oct 2012, David Rientjes wrote: > > Ok, so it's been a week and these patches are still in -mm. This is what > I was afraid of: patches that both Peter and I nacked sitting in -mm and > allow a NULL pointer dereference because no alternative patch exists yet > to fix the issue correctly. > > Tang and Wen, are you intending on addressing these problems (i.e. not > touching the acpi code at all and rather clearing cpu-to-node mappings at > node hot-remove) as we've discussed or do I need to do it myself? Hi David, We are working on this problem. Since it is complicated, it really takes us some time. Sorry for the delay. :) Actually, we intend to clear cpu-to-node mappings when a whole node is removed. But the node hot-plug code is still under development, so I think Wen will send a fix patch soon. :) Thanks. > > Thanks. > -- 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/