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=-5.7 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 46A9BC06508 for ; Sun, 30 Jun 2019 10:40:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 20AC120665 for ; Sun, 30 Jun 2019 10:40:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726671AbfF3KkC (ORCPT ); Sun, 30 Jun 2019 06:40:02 -0400 Received: from mail-io1-f72.google.com ([209.85.166.72]:44980 "EHLO mail-io1-f72.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726597AbfF3KkB (ORCPT ); Sun, 30 Jun 2019 06:40:01 -0400 Received: by mail-io1-f72.google.com with SMTP id i133so12022996ioa.11 for ; Sun, 30 Jun 2019 03:40:01 -0700 (PDT) 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=eziCMEFtU+C3qoNYfJHsPKHY2FKR9JngSHlmZZHqzFo=; b=rP+sNu4kFpbxaw03nVjCo7VEL3ZbEkrgoK2KdaGQWvw1MRzMKEBWTk+ZQuhlemhoBG iLpDpEbl77QMqj1MVPlvnjAF7gFcyypbjKf0U88Fsk/5uY/HWvPIexFenIN/knsneiSV 8J2Di9VMcLVIyHZeQqXVkZt5H6yUFNZeor39cnJb29oRlIm0jYb36cFsVIk7w12wqD1b SDBR8hCgbxUsBavI3gk2Xf3iienf0f5WD1ZfklqOG5jXGvNPMZfcvBdO50poWKv3s9W2 Y70sQl+nsDkKjjsUifMaKqUO5Om9yQPe7ntjvZOFEBIH+R1BDst7Q2moQNdQUu1OHZQP Otyg== X-Gm-Message-State: APjAAAU7gJbqY0cI4a1hwSTGLOFEGvbGHJnPuF/og3eP7YalmmstO+fZ yUQ4TBCtvVcLamm2BQU7jwoDqP7ToBy6o/nGIjsqa1/pIN9M X-Google-Smtp-Source: APXvYqwc7jNxeDwuXuaVmtRV4iFyubee59JJU/yaTue7FDuw9a59U5XBHdkSI5CIzX3MUpYnDTjMD5X25A8OGVnPI50yMEKLHG28 MIME-Version: 1.0 X-Received: by 2002:a02:c6a9:: with SMTP id o9mr10128962jan.90.1561891200769; Sun, 30 Jun 2019 03:40:00 -0700 (PDT) Date: Sun, 30 Jun 2019 03:40:00 -0700 In-Reply-To: <0000000000003ec128058c7624ec@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000003326c1058c8822c7@google.com> Subject: Re: WARNING in kernfs_create_dir_ns From: syzbot To: a@unstable.cc, b.a.t.m.a.n@lists.open-mesh.org, davem@davemloft.net, gregkh@linuxfoundation.org, hongjiefang@asrmicro.com, linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org, mareklindner@neomailbox.ch, netdev@vger.kernel.org, sw@simonwunderlich.de, syzkaller-bugs@googlegroups.com, tj@kernel.org, ulf.hansson@linaro.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 7f38abf220e2c800a2c451372e9f07ed5fd0ea49 Author: Hongjie Fang Date: Tue Jul 31 02:55:09 2018 +0000 mmc: core: improve reasonableness of bus width setting for HS400es bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=129d6755a00000 start commit: 72825454 Merge branch 'x86-urgent-for-linus' of git://git... git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=119d6755a00000 console output: https://syzkaller.appspot.com/x/log.txt?x=169d6755a00000 kernel config: https://syzkaller.appspot.com/x/.config?x=9a31528e58cc12e2 dashboard link: https://syzkaller.appspot.com/bug?extid=38f5d5cf7ae88c46b11a syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12a6c439a00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1353c323a00000 Reported-by: syzbot+38f5d5cf7ae88c46b11a@syzkaller.appspotmail.com Fixes: 7f38abf220e2 ("mmc: core: improve reasonableness of bus width setting for HS400es") For information about bisection process see: https://goo.gl/tpsmEJ#bisection