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=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 5255CC432C0 for ; Wed, 20 Nov 2019 08:17:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 32624222A2 for ; Wed, 20 Nov 2019 08:17:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727809AbfKTIRC (ORCPT ); Wed, 20 Nov 2019 03:17:02 -0500 Received: from mail-il1-f200.google.com ([209.85.166.200]:43790 "EHLO mail-il1-f200.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727530AbfKTIRB (ORCPT ); Wed, 20 Nov 2019 03:17:01 -0500 Received: by mail-il1-f200.google.com with SMTP id d11so21853911ild.10 for ; Wed, 20 Nov 2019 00:17:01 -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=8mSwAp6R3MTgLOZKJnTAwaNXJ5w5NU+vgObJ2uRrfts=; b=MUfgyxwqqzHxS1W3hwrMmNfkY0x5UpoYAM4Qd6FbU0jCpyjxFo6QcBoF85XX1BLgim zD5e3wAbv9d5d4AOSVOSTSkIpqBYtMjIFIWAtLcpcqunRBS/trEqtHPLNWav8xun0uzt 4qJxNhGu0Zhiw4+WVnnLvewdtwrsdwYLNGRg47NeazU8r6nMz0JZPr39TIqOhImUYsT1 8rXy/PcTIgXBukf/cAv0L2u1VB9LV6wSfoG3ssPlwI26LpZt2zuuGwg7VbG1YQTYT8hT OowOFtE2DfJ2j7OOlbprLJBnpQB0VM+cIw7tzwLHqg5qwGMxSfP1BGkfTkVecKfdqKA6 Bzgw== X-Gm-Message-State: APjAAAWY+lTJ7KQU+vhyvZkPwD5/dI3RASmGcGLU2kkr8rPUe/Or/xK4 +3Caq01gNP+LZHiYUaf/GQniW5bE4p+4f0GZFW5TfnNjUYf6 X-Google-Smtp-Source: APXvYqwCzYvvimCpQnIkurj8fhX5J3q3D53GyZAwXBSf1oo7y427xoiTlVGgBhHSLunCtq6iq3GnJ7zDmnZNCJZ5Jw5P9OLzx/7i MIME-Version: 1.0 X-Received: by 2002:a6b:f703:: with SMTP id k3mr991797iog.95.1574237821050; Wed, 20 Nov 2019 00:17:01 -0800 (PST) Date: Wed, 20 Nov 2019 00:17:01 -0800 In-Reply-To: <000000000000f921ae05757f567c@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000001da6b60597c2ce91@google.com> Subject: Re: WARNING in kernfs_get From: syzbot To: benh@kernel.crashing.org, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, penguin-kernel@I-love.SAKURA.ne.jp, rafael@kernel.org, syzkaller-bugs@googlegroups.com, tj@kernel.org, torvalds@linux-foundation.org Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this bug to: commit 726e41097920a73e4c7c33385dcc0debb1281e18 Author: Benjamin Herrenschmidt Date: Tue Jul 10 00:29:10 2018 +0000 drivers: core: Remove glue dirs from sysfs earlier bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17a101cee00000 start commit: 9a568276 Merge branch 'x86-urgent-for-linus' of git://git... git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=146101cee00000 console output: https://syzkaller.appspot.com/x/log.txt?x=106101cee00000 kernel config: https://syzkaller.appspot.com/x/.config?x=8f59875069d721b6 dashboard link: https://syzkaller.appspot.com/bug?extid=3dcb532381f98c86aeb1 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12657f0a400000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=117728ae400000 Reported-by: syzbot+3dcb532381f98c86aeb1@syzkaller.appspotmail.com Fixes: 726e41097920 ("drivers: core: Remove glue dirs from sysfs earlier") For information about bisection process see: https://goo.gl/tpsmEJ#bisection