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 5BFE2C433EF for ; Tue, 14 Jun 2022 02:16:23 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 7FA4C8D01FF; Mon, 13 Jun 2022 22:16:22 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 7A90E8D01EE; Mon, 13 Jun 2022 22:16:22 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 697858D01FF; Mon, 13 Jun 2022 22:16:22 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id 599C58D01EE for ; Mon, 13 Jun 2022 22:16:22 -0400 (EDT) Received: from smtpin24.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay11.hostedemail.com (Postfix) with ESMTP id 262CE806DF for ; Tue, 14 Jun 2022 02:16:22 +0000 (UTC) X-FDA: 79575227004.24.CE17F9C Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by imf18.hostedemail.com (Postfix) with ESMTP id 3A7231C0082 for ; Tue, 14 Jun 2022 02:16:21 +0000 (UTC) Received: from canpemm500002.china.huawei.com (unknown [172.30.72.53]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4LMX8K6JFqzjY0X; Tue, 14 Jun 2022 10:15:13 +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; Tue, 14 Jun 2022 10:16:17 +0800 Subject: Re: [PATCH v3 1/1] mm/memory-failure: don't allow to unpoison hw corrupted page To: David Hildenbrand CC: , , zhenwei pi , , References: <20220610114646.162764-1-pizhenwei@bytedance.com> <20220610114646.162764-2-pizhenwei@bytedance.com> <0fedf6f3-3ab3-e1d2-fd6e-3dbe8e92f06d@redhat.com> From: Miaohe Lin Message-ID: <844edb08-e145-0209-bf7a-60fb38503705@huawei.com> Date: Tue, 14 Jun 2022 10:16:16 +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: <0fedf6f3-3ab3-e1d2-fd6e-3dbe8e92f06d@redhat.com> Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.174.177.76] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To canpemm500002.china.huawei.com (7.192.104.244) X-CFilter-Loop: Reflected ARC-Authentication-Results: i=1; imf18.hostedemail.com; dkim=none; dmarc=pass (policy=quarantine) header.from=huawei.com; spf=pass (imf18.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=1655172981; 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=LtGX3dVFZxUvb8PhNMy00/jyIyaIokmveYun72jJGO8=; b=SqQnde4EFKqJy0/QMoPAzNSbMYgl8MnQ7PWoZ96RcL1IcU5AzneqjwKEa8uJFYOz3ggg3j yxBOv3aYCIMORoTKlER3C2pIUugQ+Btvw9UUukp45fcyrIBGltEgHflYTnAJKyi8D4hhs1 bq45ODSOw+dMvYbcCe4HKFIx8oiUlVw= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1655172981; a=rsa-sha256; cv=none; b=GxyaSnHgKkkMJABAPODqHEYXOWCnPFMAZx6jD+HK9pgvEl9cUGbbvsFts6cCs0wuB2PxqX eOwfjMwnGFH3uLkptJTKV0FTamds66qfd3EsHkxjrU5tq22jZHedfxGMfdn/oFNA2DWZX0 zV4J/vWZzf4tYmrRP8PjzwFckWSUlw0= X-Stat-Signature: b6xg6g7ufggrxgkir53m9p15x97qmmqz X-Rspamd-Queue-Id: 3A7231C0082 X-Rspam-User: Authentication-Results: imf18.hostedemail.com; dkim=none; dmarc=pass (policy=quarantine) header.from=huawei.com; spf=pass (imf18.hostedemail.com: domain of linmiaohe@huawei.com designates 45.249.212.187 as permitted sender) smtp.mailfrom=linmiaohe@huawei.com X-Rspamd-Server: rspam10 X-HE-Tag: 1655172981-344809 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 2022/6/10 20:12, David Hildenbrand wrote: > > I really prefer just disabling the unpoisioning mechanism in case there > is a real hw injected error. IMHO, this would be a simple solution that also works on the arches that does not unmap the kernel mapping when a page is hardware corrupted. Thanks! >