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,URIBL_BLOCKED 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 94485C2BA19 for ; Thu, 16 Apr 2020 00:11:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6B1A52076D for ; Thu, 16 Apr 2020 00:11:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391444AbgDPALY (ORCPT ); Wed, 15 Apr 2020 20:11:24 -0400 Received: from mail-io1-f69.google.com ([209.85.166.69]:36083 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2391270AbgDPALG (ORCPT ); Wed, 15 Apr 2020 20:11:06 -0400 Received: by mail-io1-f69.google.com with SMTP id p9so6759964ioh.3 for ; Wed, 15 Apr 2020 17:11:04 -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=fpoqVPhszf0NVg05C+Ce87uumBc0cG0RasYX5KRrK/A=; b=twUFJ+s0ioh5PHTp5bpU/F2FTI59EUrki8X0PSEK7C8T8DrHiMXXwzCUXq8nkW2VWf 9tvelCVjlIEj/Om3F9C/qBg4H7uNWAlYJ52XJfxkMUgiB33YAXcjkArr3epQ8hs3KXuh cyN9NqQGALT/hIFAT8MckdKseCMT0PoCrXGTtaq2Ee9q5nR6RZq2mwVLszd2Ynd5gkts /enjHm0QGO9tx5ftZlnD76Kgw5qAKgLzD3Z9BcJbKropXEPsNhLkOVETJj8ngLwQZDIa TswYdRgoNkmnojowvsRo3CK8tnWttAIrKx8c+7lFZzukGLoxuBRqmysit3/YJImZds0U tQzg== X-Gm-Message-State: AGi0PubGQFlvj/BTwBqjrQWviV1GS1r1/USuNs8htP8+frb98pO8azNM 3rAJksbc8uvYW3h51+fFGLj5v0NGVtomZXhjc9V3hoccRr9b X-Google-Smtp-Source: APiQypKcCgI3/2owP+Ax+avsl/BzFIkiA31xvFAOZDOMymkWaDm+4dJSPNPqeM8Ut+RNphNBCe4mDPpNDLKfGAmGhhXHK5QOcm+K MIME-Version: 1.0 X-Received: by 2002:a02:7b05:: with SMTP id q5mr28919026jac.105.1586995863913; Wed, 15 Apr 2020 17:11:03 -0700 (PDT) Date: Wed, 15 Apr 2020 17:11:03 -0700 In-Reply-To: <0000000000003ec128058c7624ec@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000ba8e5605a35d4465@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, hdanton@sina.com, hongjiefang@asrmicro.com, linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org, longman@redhat.com, mareklindner@neomailbox.ch, mingo@kernel.org, netdev@vger.kernel.org, peterz@infradead.org, sw@simonwunderlich.de, syzkaller-bugs@googlegroups.com, tj@kernel.org, ulf.hansson@linaro.org Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot suspects this bug was fixed by commit: commit 810507fe6fd5ff3de429121adff49523fabb643a Author: Waiman Long Date: Thu Feb 6 15:24:08 2020 +0000 locking/lockdep: Reuse freed chain_hlocks entries bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1008138be00000 start commit: 72825454 Merge branch 'x86-urgent-for-linus' of git://git... git tree: upstream 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 If the result looks correct, please mark the bug fixed by replying with: #syz fix: locking/lockdep: Reuse freed chain_hlocks entries For information about bisection process see: https://goo.gl/tpsmEJ#bisection