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[2620:137:e000::1:20]) by mx.google.com with ESMTP id dm2-20020a170907948200b007121f5ff362si8317894ejc.116.2022.06.13.04.40.44; Mon, 13 Jun 2022 04:41:10 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1355413AbiFMLin (ORCPT + 99 others); Mon, 13 Jun 2022 07:38:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56178 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1354411AbiFML32 (ORCPT ); Mon, 13 Jun 2022 07:29:28 -0400 Received: from mail-io1-f69.google.com (mail-io1-f69.google.com [209.85.166.69]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 08DF2CE0E for ; Mon, 13 Jun 2022 03:44:08 -0700 (PDT) Received: by mail-io1-f69.google.com with SMTP id k5-20020a6bba05000000b00668eb755190so2446753iof.13 for ; Mon, 13 Jun 2022 03:44:08 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=fEZcgfMVZzqJc7ybxib8fa3FVpwuXcVDtcH0dPsG3A0=; b=601y0HVxa4fREISrgpDWzsilKOyzbKFC4Ub9B1irwDhm42WplZYj5ERcyzh3N2jRvp t35l6hIFg4xVKDlobkkesk/J5IQ8+OmxuG9Fj7yOko0jQMZPXUDYodY37DvtKuoHvvMb JeuRDTTcgg0vm7+uZJb4fuwXvjwmpUMWTY6K3QacakLmpgxw3mHBAjL0a3O+lCciDkGE IPWM0b689plNj2TMvf1O84t6ta45IK/yc4+Dr8BHKOyI3+DC/EuL0etcQL+jwiKuhPgD vMGi6ej+ifN6VCZHCAgUfjFEafDgQfWNhwp/+OHdMgvmMijPipufT/wHBZur2Y0EPEFb g/kA== X-Gm-Message-State: AOAM533A9JIAX8nsCfQpetyWX0eUIr3csJjCfgc72cwDu1MHP5oB+13j lseXAw6U5FjNzYuL9v/kj3bQ9d9R92RpsR/ViR9TN5SBT5cx MIME-Version: 1.0 X-Received: by 2002:a05:6638:438c:b0:331:adac:a274 with SMTP id bo12-20020a056638438c00b00331adaca274mr23027146jab.192.1655117047472; Mon, 13 Jun 2022 03:44:07 -0700 (PDT) Date: Mon, 13 Jun 2022 03:44:07 -0700 In-Reply-To: <000000000000e2fc3f05e141f930@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000ad299205e151f7d3@google.com> Subject: Re: [syzbot] WARNING in exit_tasks_rcu_finish From: syzbot To: andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, brauner@kernel.org, daniel@iogearbox.net, davem@davemloft.net, ebiederm@xmission.com, frederic@kernel.org, hawk@kernel.org, jiangshanlai@gmail.com, joel@joelfernandes.org, john.fastabend@gmail.com, josh@joshtriplett.org, kafai@fb.com, keescook@chromium.org, kpsingh@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, mathieu.desnoyers@efficios.com, netdev@vger.kernel.org, pabeni@redhat.com, paulmck@kernel.org, quic_neeraju@quicinc.com, rcu@vger.kernel.org, rostedt@goodmis.org, songliubraving@fb.com, syzkaller-bugs@googlegroups.com, yhs@fb.com Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=0.8 required=5.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2, SORTED_RECIPS,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this issue to: commit 09f110d4a1597185a5ed177da8573eec997b7227 Author: Paul E. McKenney Date: Tue May 17 18:30:32 2022 +0000 rcu-tasks: Track blocked RCU Tasks Trace readers bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=170f6ee7f00000 start commit: 6d0c80680317 Add linux-next specific files for 20220610 git tree: linux-next final oops: https://syzkaller.appspot.com/x/report.txt?x=148f6ee7f00000 console output: https://syzkaller.appspot.com/x/log.txt?x=108f6ee7f00000 kernel config: https://syzkaller.appspot.com/x/.config?x=a30d6e3e814e5931 dashboard link: https://syzkaller.appspot.com/bug?extid=9bb26e7c5e8e4fa7e641 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=177b6230080000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=148207bff00000 Reported-by: syzbot+9bb26e7c5e8e4fa7e641@syzkaller.appspotmail.com Fixes: 09f110d4a159 ("rcu-tasks: Track blocked RCU Tasks Trace readers") For information about bisection process see: https://goo.gl/tpsmEJ#bisection