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=-5.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=unavailable 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 2057CC2D0CD for ; Tue, 17 Dec 2019 20:16:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E334F206D8 for ; Tue, 17 Dec 2019 20:16:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728028AbfLQUQD (ORCPT ); Tue, 17 Dec 2019 15:16:03 -0500 Received: from mail-il1-f197.google.com ([209.85.166.197]:37869 "EHLO mail-il1-f197.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727577AbfLQUQC (ORCPT ); Tue, 17 Dec 2019 15:16:02 -0500 Received: by mail-il1-f197.google.com with SMTP id t19so10364732ila.4 for ; Tue, 17 Dec 2019 12:16:02 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=Zl7jDCng4WsJS3fDlSVM0kBHR2q0XfgZ7N4MzVpx9q0=; b=E03wW+dszkghSOxFmZ9UAdfaNXLbEyFk/o1kQXETCgcRW3p965plSi5Cj3XPj4Qiwz KndTiZnUUYbsM2cPTF6rSzDp/c4np7H1ElJIbUm3hwtTRWP2EgVoigE1PMSTcWv+fGGj fi0hA1J32UCL/2qduREbi0/Yq4Qphzi6QwptKSAB4vP9GvxJAf4IWSQJ9IWuiz5zKpGz PB8waE/cuRQn0h8W4BqBGOnZZZE/cYt9ED0GEW+9NmoMtlh5Q5E+RS7+SxkWyvdlAJmQ SAC/NnIvVdyPhPEOl2whDwuS1nmVqSmrjp2HHGzfR4Y21EveQYgmvcZSDxyaqOfeI0Mj SX6A== X-Gm-Message-State: APjAAAWlMj8lHMQfKOeRRUgvwPxmVSNp+8afrna/RsMiDdAPWBCyVi7z 5L/h2DZmPOuyow7WOM/E0h8W7ioDPjJOlkY7ULNlHfUi/ziD X-Google-Smtp-Source: APXvYqzICrG8Yo/ALydErrhDqX93YfSSAQ85FdUg4jalGroBJiT3BB12c6HUe2ZyNSlzlRnSA4l2+EVqSg+tk5rH2iwmoObAicm0 MIME-Version: 1.0 X-Received: by 2002:a05:6602:25cb:: with SMTP id d11mr3095867iop.263.1576613761732; Tue, 17 Dec 2019 12:16:01 -0800 (PST) Date: Tue, 17 Dec 2019 12:16:01 -0800 In-Reply-To: <000000000000a6f2030598bbe38c@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000037571c0599ebff87@google.com> Subject: Re: WARNING in wp_page_copy From: syzbot To: andriin@fb.com, ast@kernel.org, bjorn.topel@intel.com, bpf@vger.kernel.org, catalin.marinas@arm.com, daniel@iogearbox.net, davem@davemloft.net, hawk@kernel.org, jakub.kicinski@netronome.com, john.fastabend@gmail.com, jonathan.lemon@gmail.com, justin.he@arm.com, kafai@fb.com, kirill.shutemov@linux.intel.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, magnus.karlsson@gmail.com, magnus.karlsson@intel.com, netdev@vger.kernel.org, songliubraving@fb.com, syzkaller-bugs@googlegroups.com, yhs@fb.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org syzbot has bisected this bug to: commit 83d116c53058d505ddef051e90ab27f57015b025 Author: Jia He Date: Fri Oct 11 14:09:39 2019 +0000 mm: fix double page fault on arm64 if PTE_AF is cleared bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1378f5b6e00000 start commit: e31736d9 Merge tag 'nios2-v5.5-rc2' of git://git.kernel.or.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=10f8f5b6e00000 console output: https://syzkaller.appspot.com/x/log.txt?x=1778f5b6e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=79f79de2a27d3e3d dashboard link: https://syzkaller.appspot.com/bug?extid=9301f2f33873407d5b33 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10fd9fb1e00000 Reported-by: syzbot+9301f2f33873407d5b33@syzkaller.appspotmail.com Fixes: 83d116c53058 ("mm: fix double page fault on arm64 if PTE_AF is cleared") For information about bisection process see: https://goo.gl/tpsmEJ#bisection