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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 AAF95C35242 for ; Tue, 11 Feb 2020 22:14:54 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 67B7420708 for ; Tue, 11 Feb 2020 22:14:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=shutemov-name.20150623.gappssmtp.com header.i=@shutemov-name.20150623.gappssmtp.com header.b="GH8uY3M9" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 67B7420708 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=shutemov.name Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id E2FF56B0342; Tue, 11 Feb 2020 17:14:53 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id DE0F96B0343; Tue, 11 Feb 2020 17:14:53 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id CA8BA6B0344; Tue, 11 Feb 2020 17:14:53 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0248.hostedemail.com [216.40.44.248]) by kanga.kvack.org (Postfix) with ESMTP id AF1936B0342 for ; Tue, 11 Feb 2020 17:14:53 -0500 (EST) Received: from smtpin13.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 6EEF04DA5 for ; Tue, 11 Feb 2020 22:14:53 +0000 (UTC) X-FDA: 76479252066.13.name52_2aa443ee85d61 X-HE-Tag: name52_2aa443ee85d61 X-Filterd-Recvd-Size: 3819 Received: from mail-lj1-f172.google.com (mail-lj1-f172.google.com [209.85.208.172]) by imf44.hostedemail.com (Postfix) with ESMTP for ; Tue, 11 Feb 2020 22:14:52 +0000 (UTC) Received: by mail-lj1-f172.google.com with SMTP id r19so13452160ljg.3 for ; Tue, 11 Feb 2020 14:14:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=shutemov-name.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=XMdcESuAsKRjHBA4c4k1Q10QSnldRLx7zc7D445S0DU=; b=GH8uY3M92pN3Eu4yKD4BPyzTUWokTCfo6kKjF35fmCtLIpaqwWWJECAukr8pdC0Qub +Ga8p8gCTlY7TdTk3NmXg7xtPSaUnPROHzxdvc0x2U/WfnhUh8Forgkruxv+VxgpsyON W9WIu0PWPR0ODJfxNwWrnKIexOgQEWqD3mPO9Z7zPZT44CqfJNDgzJW8KXCHRLp2CUBg +78HkalkFqv0h2nlehSxk1qktsdBhpIR7U7UyoiheN/vapH5M/bRd4wCVBaf01D+VfH1 umwv0mLM4uurTgzCQwPk3pv2SV3dfFasjRcHf0Np4E7co36jw5MQkefqsJtWgkZNcLyX BqBg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=XMdcESuAsKRjHBA4c4k1Q10QSnldRLx7zc7D445S0DU=; b=hDrqJqAtC1OOP1iX7mv/LwAHQtthaxQBERb71KL2n0IYzxl6xRull6zSeVV4UvnKC9 Fvi96PZSrb3+VUZNdzr+xdKDJxJx5Rs06J+822RJN0haVw2nDl+unSihdOVYRLnbChYw RNp6ys8ljS/f2Z88zPh/s1jbm4JqZHmRYRnGVqOXqpu9iy0dd2WRTnAZiFltWHqHbDPw VsGcmoqPeAyJsBpSbSUAO/oFOnRm/lsGKSaKj3ZJTumfGyXgxgOCl2JmH7yEdn0JljyS KIuS2/G07sfij2r1jAVXviNjB8Sr7ZMx/0tKxU+cLZqV0GEGCLe6rfGHzhnod6/5mbnl nILQ== X-Gm-Message-State: APjAAAVjcAtPqhKK9UPVUYgtkHTT7MqXFr1luicY9DQZ7f4VkAHH4wMx H3aegliQW2/WLmrN4yfqWylPJo2sn+g= X-Google-Smtp-Source: APXvYqybYMWWEzkMFq9Gs69uXndmHZ/VVH1hLxflnQOdqxyXBrhrlo+C+sbzhnA83yoN/wHE8Wngig== X-Received: by 2002:a2e:9e19:: with SMTP id e25mr5918532ljk.179.1581459291394; Tue, 11 Feb 2020 14:14:51 -0800 (PST) Received: from box.localdomain ([86.57.175.117]) by smtp.gmail.com with ESMTPSA id e25sm2735684ljp.97.2020.02.11.14.14.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 11 Feb 2020 14:14:50 -0800 (PST) Received: by box.localdomain (Postfix, from userid 1000) id 1471E100E99; Wed, 12 Feb 2020 01:15:09 +0300 (+03) Date: Wed, 12 Feb 2020 01:15:09 +0300 From: "Kirill A. Shutemov" To: Jeff Moyer Cc: Justin He , Catalin Marinas , "Kirill A.Shutemov" , "linux-mm@kvack.org" Subject: Re: bug: data corruption introduced by commit 83d116c53058 ("mm: fix double page fault on arm64 if PTE_AF is cleared") Message-ID: <20200211221509.ggvtyowvsgb7a35q@box> References: <20200211173352.wjm6govzcqy355y7@box> <20200211214439.v6bowbkyienrwtdd@box> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: 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 Tue, Feb 11, 2020 at 05:01:40PM -0500, Jeff Moyer wrote: > Let me know if I'm stilling confusing you. :) Okay. The commit is not to blame for the bug, but only for its exposure. -- Kirill A. Shutemov