From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Warren Subject: Re: CPU hotplug hang due to "swap: make each swap partition have one address_space" Date: Mon, 04 Feb 2013 13:49:01 -0700 Message-ID: <51101EBD.80607@wwwdotorg.org> References: <510C9DE9.9040207@wwwdotorg.org> <20130204023646.GA321@kernel.org> <510FE866.9090600@wwwdotorg.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <510FE866.9090600@wwwdotorg.org> Sender: owner-linux-mm@kvack.org To: Shaohua Li , Andrew Morton Cc: Shaohua Li , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , "linux-next@vger.kernel.org" , Rik van Riel , Minchan Kim , Joseph Lo List-Id: linux-next.vger.kernel.org On 02/04/2013 09:57 AM, Stephen Warren wrote: > On 02/03/2013 07:36 PM, Shaohua Li wrote: >> On Fri, Feb 01, 2013 at 10:02:33PM -0700, Stephen Warren wrote: >>> Shaohua, >>> >>> In next-20130128, commit 174f064 "swap: make each swap partition have >>> one address_space" (from the mm/akpm tree) appears causes a hang/RCU >>> stall for me when hot-unplugging a CPU. >> >> does this one work for you? >> http://marc.info/?l=linux-mm&m=135929599505624&w=2 >> Or try a more recent linux-next. The patch is in akpm's tree. > > Yes, that patch fixes the issue for me, thanks. I notice this patch is only in Andrew's mmots tree, not mmotm, and hence isn't included in linux-next. Do you know when it'll be "promoted" and show up in linux-next? -- 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 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754758Ab3BDUtH (ORCPT ); Mon, 4 Feb 2013 15:49:07 -0500 Received: from avon.wwwdotorg.org ([70.85.31.133]:60829 "EHLO avon.wwwdotorg.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754014Ab3BDUtF (ORCPT ); Mon, 4 Feb 2013 15:49:05 -0500 Message-ID: <51101EBD.80607@wwwdotorg.org> Date: Mon, 04 Feb 2013 13:49:01 -0700 From: Stephen Warren User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/17.0 Thunderbird/17.0 MIME-Version: 1.0 To: Shaohua Li , Andrew Morton CC: Shaohua Li , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , "linux-next@vger.kernel.org" , Rik van Riel , Minchan Kim , Joseph Lo Subject: Re: CPU hotplug hang due to "swap: make each swap partition have one address_space" References: <510C9DE9.9040207@wwwdotorg.org> <20130204023646.GA321@kernel.org> <510FE866.9090600@wwwdotorg.org> In-Reply-To: <510FE866.9090600@wwwdotorg.org> X-Enigmail-Version: 1.4.6 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 02/04/2013 09:57 AM, Stephen Warren wrote: > On 02/03/2013 07:36 PM, Shaohua Li wrote: >> On Fri, Feb 01, 2013 at 10:02:33PM -0700, Stephen Warren wrote: >>> Shaohua, >>> >>> In next-20130128, commit 174f064 "swap: make each swap partition have >>> one address_space" (from the mm/akpm tree) appears causes a hang/RCU >>> stall for me when hot-unplugging a CPU. >> >> does this one work for you? >> http://marc.info/?l=linux-mm&m=135929599505624&w=2 >> Or try a more recent linux-next. The patch is in akpm's tree. > > Yes, that patch fixes the issue for me, thanks. I notice this patch is only in Andrew's mmots tree, not mmotm, and hence isn't included in linux-next. Do you know when it'll be "promoted" and show up in linux-next?