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=-10.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=ham 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 95BCCC433B4 for ; Wed, 21 Apr 2021 00:57:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 634A2613E1 for ; Wed, 21 Apr 2021 00:57:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234488AbhDUA6N (ORCPT ); Tue, 20 Apr 2021 20:58:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48864 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233836AbhDUA6L (ORCPT ); Tue, 20 Apr 2021 20:58:11 -0400 Received: from mail-pg1-x52a.google.com (mail-pg1-x52a.google.com [IPv6:2607:f8b0:4864:20::52a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9586CC06174A for ; Tue, 20 Apr 2021 17:57:39 -0700 (PDT) Received: by mail-pg1-x52a.google.com with SMTP id b17so28129530pgh.7 for ; Tue, 20 Apr 2021 17:57:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=MJh+f2OxJ6UeEIflR4yC1vPkkK4oSh0ENZ951FJONqo=; b=OLeReUbdv6OLeHCHtQq3H85lrpASJkCIjnry0RBvo10xtR/lhyQzxLB80qo0HcbSrY 5iRH2XznC3iGJHWoJffrqvlZYppqiRGV2yiyT7mBc9M7D/7kxcxh1BWgpjZ7yFcc1Vs/ e4t01oaV1qrIRraxBVSSwK1SjsZqP5fuf2YhVHn5Q3+c5lY4DFFnBmDTGCuVtVWkkVZH gXX1gpsWIoGMLho6zkdnVDi6aJZTNBqh7Bcad4aOKeYv2L5yErV5jBPP22x/omETQbBd meUhnieaiz+7B35WbVsQYds54/pQDt3Nl3auoMIzrjxW5h/UHlajYSm9SLoMnynp8+Fq ezqg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=MJh+f2OxJ6UeEIflR4yC1vPkkK4oSh0ENZ951FJONqo=; b=SnejMpiayyGrjwPrDxz9p3n35RrUXRuIpIMkkbDDBs2eXLPl03QpsFLc0AT1GeIdpG 9tbvOfrcUF54dpri7pQ2ThsIr7cLadjvcWEfYJ28JPf6iWQ3fQz1bMCJpC0QdVcoWOUU g4B9rLaZAsoj1ABjEvS2k7mmqL7u/XE+FvhWqdFAqChM1yWtyJ6Lz7hWV5OUQfOy7aQk be1utnjyZ0eenVzO2TTT4tE2H3KFaHOwN/H+9ova+lTcRKSDclfcf22Rxd43y64fxOW+ z1ZGSF3/xf/IrTQP4q8xQT0D8F/r2RjNtZyzITuWYFDYVyRoWR24Z6qoFdJL751CyBaM cwJQ== X-Gm-Message-State: AOAM530pL5TTsZI77uYF1zuDezBxZQnOGUKXX71M3UL4atiEZ+7gmo7J HnqNG24rpEz1sVpKZIxB5DBUdGNmrvCI3WI= X-Google-Smtp-Source: ABdhPJz+2CnILAZSl5uyXJxgTccojcLpEzDQCZfgUMmoXaxCtx+4dHq0eDd/622C+gkAavKPcodGeg== X-Received: by 2002:a65:5203:: with SMTP id o3mr19270273pgp.305.1618966659214; Tue, 20 Apr 2021 17:57:39 -0700 (PDT) Received: from localhost.localdomain (h175-177-040-153.catv02.itscom.jp. [175.177.40.153]) by smtp.gmail.com with ESMTPSA id e13sm178278pfi.199.2021.04.20.17.57.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 20 Apr 2021 17:57:38 -0700 (PDT) From: Naoya Horiguchi To: linux-mm@kvack.org, Tony Luck , Aili Yao Cc: Andrew Morton , Oscar Salvador , David Hildenbrand , Borislav Petkov , Andy Lutomirski , Naoya Horiguchi , Jue Wang , linux-kernel@vger.kernel.org Subject: [PATCH v3 0/3] mm,hwpoison: fix sending SIGBUS for Action Required MCE Date: Wed, 21 Apr 2021 09:57:25 +0900 Message-Id: <20210421005728.1994268-1-nao.horiguchi@gmail.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, I updated the series based on previous feedbacks/discussions. Changelog v2 -> v3: - 1/3 aligned returning code with "goto out" approach, - 3/3 added one Tested-by tag, - 3/3 fixed comment on kill_accessing_process(). Changelog v1 -> v2: - 3/3 fixed on initializing local variables and calculation logic of error virtual address, v1: https://lore.kernel.org/linux-mm/20210412224320.1747638-1-nao.horiguchi@gmail.com/ v2 (only 3/3 is posted): https://lore.kernel.org/linux-mm/20210419023658.GA1962954@u2004/ Thanks, Naoya Horiguchi --- quote from cover letter of v1 --- I wrote this patchset to materialize what I think is the current allowable solution mentioned by the previous discussion [1]. I simply borrowed Tony's mutex patch and Aili's return code patch, then I queued another one to find error virtual address in the best effort manner. I know that this is not a perfect solution, but should work for some typical case. [1]: https://lore.kernel.org/linux-mm/20210331192540.2141052f@alex-virtual-machine/ --- Summary: Aili Yao (1): mm,hwpoison: return -EHWPOISON when page already Naoya Horiguchi (1): mm,hwpoison: add kill_accessing_process() to find error virtual address Tony Luck (1): mm/memory-failure: Use a mutex to avoid memory_failure() races arch/x86/kernel/cpu/mce/core.c | 13 ++- include/linux/swapops.h | 5 ++ mm/memory-failure.c | 181 +++++++++++++++++++++++++++++++++++++---- 3 files changed, 183 insertions(+), 16 deletions(-)