Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751257AbbHQF3n (ORCPT ); Mon, 17 Aug 2015 01:29:43 -0400 Received: from blu004-omc1s32.hotmail.com ([65.55.116.43]:62249 "EHLO BLU004-OMC1S32.hotmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750710AbbHQF3m (ORCPT ); Mon, 17 Aug 2015 01:29:42 -0400 X-TMN: [BGtPaw4EbktDJ7ce/TwxWWARQkuUwTTb] X-Originating-Email: [wanpeng.li@hotmail.com] Message-ID: Subject: Re: [PATCH] mm/hwpoison: fix race between soft_offline_page and unpoison_memory To: Naoya Horiguchi References: <1439785924-27885-1-git-send-email-n-horiguchi@ah.jp.nec.com> CC: Andrew Morton , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , Naoya Horiguchi From: Wanpeng Li Date: Mon, 17 Aug 2015 13:29:35 +0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 MIME-Version: 1.0 In-Reply-To: <1439785924-27885-1-git-send-email-n-horiguchi@ah.jp.nec.com> Content-Type: text/plain; charset="iso-2022-jp" Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 17 Aug 2015 05:29:40.0594 (UTC) FILETIME=[B70F9D20:01D0D8AD] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 977 Lines: 26 On 8/17/15 12:32 PM, Naoya Horiguchi wrote: > [...] > OK, so I wrote the next version against mmotm-2015-08-13-15-29 (replied to > this email.) It moves PageSetHWPoison part into migration code, which should > close up the reported race window and minimize the another revived race window > of reusing offlined pages, so I feel that it's a good compromise between two > races. > > My testing shows no kernel panic with these patches (same testing easily caused > panics for bare mmotm-2015-08-13-15-29,) so they should work. But I'm appreciated > if you help double checking. This patchset looks good to me after some stress testing. Andrew, Could we pick it in order to catch up upcoming merge window? :-) Regards, Wanpeng Li -- 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/