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 X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 46953C47094 for ; Tue, 8 Jun 2021 02:25:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 26B3261208 for ; Tue, 8 Jun 2021 02:25:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231347AbhFHC0y (ORCPT ); Mon, 7 Jun 2021 22:26:54 -0400 Received: from szxga01-in.huawei.com ([45.249.212.187]:8066 "EHLO szxga01-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230233AbhFHC0v (ORCPT ); Mon, 7 Jun 2021 22:26:51 -0400 Received: from dggemv704-chm.china.huawei.com (unknown [172.30.72.56]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4FzYsW5LyvzYlPR; Tue, 8 Jun 2021 10:22:07 +0800 (CST) Received: from dggema753-chm.china.huawei.com (10.1.198.195) by dggemv704-chm.china.huawei.com (10.3.19.47) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.1.2176.2; Tue, 8 Jun 2021 10:24:56 +0800 Received: from huawei.com (10.174.179.206) by dggema753-chm.china.huawei.com (10.1.198.195) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2; Tue, 8 Jun 2021 10:24:55 +0800 From: wangbin To: CC: , , , , , Subject: Re: Re: [PATCH] mm: hugetlbfs: add hwcrp_hugepages to record memory failure on hugetlbfs Date: Tue, 8 Jun 2021 10:24:50 +0800 Message-ID: <20210608022450.2044-1-wangbin224@huawei.com> X-Mailer: git-send-email 2.29.2.windows.3 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.174.179.206] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To dggema753-chm.china.huawei.com (10.1.198.195) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > What specific problem are you trying to solve? Are trying to see how > many huge pages were hit by memory errors? Yes, I'd like to know how many huge pages are not available because of the memory errors. Just like HardwareCorrupted in the /proc/meminfo. But the HardwareCorrupted only adds one page size when a huge page is hit by memory errors, and mixes with normal pages. So I think we should add a new counts to track the memory errors on hugetlbfs. -- Bin Wang