From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 044BECCA485 for ; Mon, 11 Jul 2022 11:13:59 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 4D7DD6B00BF; Mon, 11 Jul 2022 07:13:59 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 485556B00C0; Mon, 11 Jul 2022 07:13:59 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 374156B00C1; Mon, 11 Jul 2022 07:13:59 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id 282536B00BF for ; Mon, 11 Jul 2022 07:13:59 -0400 (EDT) Received: from smtpin01.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay06.hostedemail.com (Postfix) with ESMTP id E331334AB4 for ; Mon, 11 Jul 2022 11:13:58 +0000 (UTC) X-FDA: 79674559356.01.79E4CF1 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by imf04.hostedemail.com (Postfix) with ESMTP id 0BD4040027 for ; Mon, 11 Jul 2022 11:13:57 +0000 (UTC) Received: from canpemm500002.china.huawei.com (unknown [172.30.72.55]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4LhLnd3g4XzlVtQ; Mon, 11 Jul 2022 19:12:21 +0800 (CST) Received: from [10.174.177.76] (10.174.177.76) by canpemm500002.china.huawei.com (7.192.104.244) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Mon, 11 Jul 2022 19:13:53 +0800 Subject: Re: [mm-unstable PATCH v5 4/8] mm, hwpoison: make unpoison aware of raw error info in hwpoisoned hugepage To: =?UTF-8?B?SE9SSUdVQ0hJIE5BT1lBKOWggOWPoyDnm7TkuZ8p?= CC: Naoya Horiguchi , "linux-mm@kvack.org" , Andrew Morton , David Hildenbrand , Mike Kravetz , Liu Shixin , Yang Shi , Oscar Salvador , Muchun Song , "linux-kernel@vger.kernel.org" References: <20220708053653.964464-1-naoya.horiguchi@linux.dev> <20220708053653.964464-5-naoya.horiguchi@linux.dev> <3c66e7f6-e499-9802-409a-a32404fc87cc@huawei.com> <20220711092400.GA2741993@hori.linux.bs1.fc.nec.co.jp> From: Miaohe Lin Message-ID: <9e800b26-db85-f8a7-f268-3fb99a748cf1@huawei.com> Date: Mon, 11 Jul 2022 19:13:53 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.6.0 MIME-Version: 1.0 In-Reply-To: <20220711092400.GA2741993@hori.linux.bs1.fc.nec.co.jp> Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 8bit X-Originating-IP: [10.174.177.76] X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To canpemm500002.china.huawei.com (7.192.104.244) X-CFilter-Loop: Reflected ARC-Authentication-Results: i=1; imf04.hostedemail.com; dkim=none; dmarc=pass (policy=quarantine) header.from=huawei.com; spf=pass (imf04.hostedemail.com: domain of linmiaohe@huawei.com designates 45.249.212.187 as permitted sender) smtp.mailfrom=linmiaohe@huawei.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1657538038; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=5tpchP98EtgKaTzZihDrDz2JFiRQt/ivSToSvUD7Fi4=; b=hodS52FOPaHScoaPFqtu2wcdwdbtEycr3TxYNtH4DCMYhmBje9Rb9Qsb7aGmHw5UIvREMS Scb7ppkRLJpYMWzpcVHHvxMDGog7dqoW/K9OoUiottGpabYotCmHGUWp/FIbmNbrpKGU2o zCcsvTZtLK0TNg0VDQX5LyVJHIgxRIk= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1657538038; a=rsa-sha256; cv=none; b=UaalkzP8sX7HdT1G59cp9ursEfXFYOJjKnk8MyxDmT1likkI5FSfEfASkWIZLnK/XnhSi2 vnHTFYXIYUWKcH28Te6atR5kbzIGdkgrmutOzHtNKjo/BuwSfgWoWdhtKyynr/S6Nac4tX 0pO0N2N+lnHdgcygHSiXe4UAGyjAk+8= Authentication-Results: imf04.hostedemail.com; dkim=none; dmarc=pass (policy=quarantine) header.from=huawei.com; spf=pass (imf04.hostedemail.com: domain of linmiaohe@huawei.com designates 45.249.212.187 as permitted sender) smtp.mailfrom=linmiaohe@huawei.com X-Rspam-User: X-Rspamd-Server: rspam08 X-Stat-Signature: 6knrihz6gdyte5t81wjh5byr38o19grh X-Rspamd-Queue-Id: 0BD4040027 X-HE-Tag: 1657538037-216512 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 2022/7/11 17:24, HORIGUCHI NAOYA(堀口 直也) wrote: > On Mon, Jul 11, 2022 at 03:09:01PM +0800, Miaohe Lin wrote: ... > > Basically raw_hwp_info is not available to userspace (it might be recorded > in dmesg but not available via /proc/kpageflags), so unpoisoning error > subpages one-by-one is sometimes bothering. If someone would like to > unpoison one-by-one (I expect nobody would), I can do this. I see. Many thanks for explanation. > >> Thanks. > > Thank you! > > - Naoya Horiguchi >