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=-3.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no 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 DE6FEC64E8A for ; Mon, 30 Nov 2020 11:34:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 88FD9206C0 for ; Mon, 30 Nov 2020 11:34:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729090AbgK3LeD (ORCPT ); Mon, 30 Nov 2020 06:34:03 -0500 Received: from mail-il1-f197.google.com ([209.85.166.197]:52534 "EHLO mail-il1-f197.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728345AbgK3LeD (ORCPT ); Mon, 30 Nov 2020 06:34:03 -0500 Received: by mail-il1-f197.google.com with SMTP id o18so9812629ilg.19 for ; Mon, 30 Nov 2020 03:33:41 -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:message-id:subject:from:to; bh=ewN649bK8OrziTWH8kTOkc1EhxOOv+IAI2UMF8kYbW0=; b=a7M42Vrg1HEyIaYiVJx4XG0nT71LEZl3kutj1fEaeIirjl6ogGdZTmrNo7MFiozVTP LBLMUgMahA2D3jYEZ6+Z3RoJ+xwQ4PUvOsEWvnPOweKh0YZ5Rmg4uGqGrurTgdo61B07 RvYrn6wZDy8LIbqGuQImKRACIVzow7gPB2PLNcsNL6HxT13FR13uNwdCqkXY3F8O6JAJ m7ci11OKkXkzP+AaYI2Ht5McxLfqHlf5yMfV8DSN/iZIubHb5wHYNfwNO9Y/tYQ00xuy 9GdtE+VP2KAdP67b2UGQCQObeAI+bzGihr5+VumbMnPHnr5Kf+lfPJ+Eva85zTfHcs+e E2HA== X-Gm-Message-State: AOAM533j9Qa+rBQPg9fl3PNqwdPztd1J2G2MK7+5ypArRJTBXrpCyIKu 6wwrS62eqzJeAcHTMb5gD9RqKm4+CbMaO1v1iHF6w30+1vpK X-Google-Smtp-Source: ABdhPJzlBar7xbXAYdHpLk0KaWOnxBcu+8XuTYiylC36Z6SJrHiRFhnYIbB1LlsuOeNUzI2pRR3h//FbSmVOeUaPa6/i2evnOqC0 MIME-Version: 1.0 X-Received: by 2002:a6b:f112:: with SMTP id e18mr863380iog.195.1606735996277; Mon, 30 Nov 2020 03:33:16 -0800 (PST) Date: Mon, 30 Nov 2020 03:33:16 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000004e5bdb05b5516009@google.com> Subject: BUG: rwlock bad magic on CPU, kworker/0:LINE/NUM, ADDR From: syzbot To: davem@davemloft.net, jmaloy@redhat.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, tipc-discussion@lists.sourceforge.net, ying.xue@windriver.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 90cf87d1 enetc: Let the hardware auto-advance the taprio b.. git tree: net console output: https://syzkaller.appspot.com/x/log.txt?x=135479b3500000 kernel config: https://syzkaller.appspot.com/x/.config?x=5720c06118e6c4cc dashboard link: https://syzkaller.appspot.com/bug?extid=cb987a9c796abc570b47 compiler: gcc (GCC) 10.1.0-syz 20200507 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+cb987a9c796abc570b47@syzkaller.appspotmail.com tipc: 32-bit node address hash set to aa1414ac BUG: rwlock bad magic on CPU#0, kworker/0:18/18158, 00000000859f2a8d CPU: 0 PID: 18158 Comm: kworker/0:18 Not tainted 5.10.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events tipc_net_finalize_work Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x107/0x163 lib/dump_stack.c:118 rwlock_bug kernel/locking/spinlock_debug.c:144 [inline] debug_write_lock_before kernel/locking/spinlock_debug.c:182 [inline] do_raw_write_lock+0x1ef/0x280 kernel/locking/spinlock_debug.c:206 tipc_mon_reinit_self+0x1f7/0x630 net/tipc/monitor.c:685 tipc_net_finalize net/tipc/net.c:134 [inline] tipc_net_finalize+0x1df/0x310 net/tipc/net.c:125 process_one_work+0x933/0x15a0 kernel/workqueue.c:2272 worker_thread+0x64c/0x1120 kernel/workqueue.c:2418 kthread+0x3af/0x4a0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.