From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f79.google.com (mail-io1-f79.google.com [209.85.166.79]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6925FBE6F for ; Sun, 23 Jun 2024 15:29:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.79 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719156566; cv=none; b=qBWRZVs/QDkBOzn/ZUS3CoYxzPxrNPix5hohdOgu/D+RIgQx5H04WQmpPA52F7uJ5MGaqFaDnQzVtGwBLb2SsVBFL3YuuPBX0ounSM8RsO/TKhn2Yp2hqJ5ne8YXPAta/4oSR390eLzAG0ZUumSedes7tsami+tRrcloo0VaGag= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719156566; c=relaxed/simple; bh=5GzQNXCfF8EdbfC3H4E9VS+tvgTWS1crHKs96+wLw5I=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=ro0hnM4ptuPgCLMbcH2xYiAtmt9XCLGocKQu3wBX+UbR3EfVJi4HLk3jtC7jpyVdQTltqz5gxnsusNPu1ujB8YmcYJmF46v8gCpEtSIxk1mpE2Jx1laFuURIYyYtn+IcU67jE6Adq3h2K2Z1yh2HBX4rCSpBloiRVeaBDuYe6E4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.79 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-io1-f79.google.com with SMTP id ca18e2360f4ac-7eafdb25dbbso424955839f.3 for ; Sun, 23 Jun 2024 08:29:25 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1719156564; x=1719761364; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=EP0r5vjIqTOj5wt9p5RxoVOv4/EypeRrWumP8Iu8xTU=; b=e2AD1n0d0WyOyMyTyRcIRCrARbHex6bNzMhZYPWplzwxSr6yFeXEJb72jMClqSj1nI sVH0Pr2sjP/awHB4ZhAF9la6VIVm1CmpPfV5cNcwOb8YE/LF3m4wjsrd10afLhJe56XE uDsXxoeXWY1XH81W72lH2w4RKtn1rHDvuyXhoPZpQOz/FN9gepIWJHlBPw0FSPW2VryE H5zYqgomVDKVIEBAQlAisFNh1EK0W8dHvBldecPMrtMnMfz/DKuqHkWgnbByUfk78Tao q/Ls26py8hx+4vsbdqWQX8e8IDylwggmYXM5pU+qM8MDpGzcY4yWCP+GqoWe2u5yKNMQ g8yQ== X-Forwarded-Encrypted: i=1; AJvYcCXmZOu8n78/EmCbxsL2c73K6uj859SlWqUWL+n3FScUrFG+EG+Ghbin2o4PZlvlFvsjn02yVcuDoMmZ3BZkTUW1KNHDzl5r X-Gm-Message-State: AOJu0Yxa1cVN5RQjoq7m7NW/g1HVEvq4Qx2q9pUzwzhPlGWhJW3/oSzy Jlr79Uiumsqtn8hjscoZ18IurkNSS8BwPnBJ9c+JZNB055MlRw+j4pMjCwkqtiEgEQ1R1j8a7NZ YbnjB+jhecWYCyhyfsMHeCTqWhk8HY3uFoalOWiJ+9qvq9T7izaMnwFI= X-Google-Smtp-Source: AGHT+IFqnPdpAhkaCMlzEMZuVA/C2S6JDfh8pY3BlYKXaqSV5TpYTSaMd5hwBP7t8YgYtHTf5gVQGwAtwWvzgO6DJ3GECpny+vp9 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a92:cd84:0:b0:36c:4b17:e05d with SMTP id e9e14a558f8ab-3763e16d8a6mr3431835ab.4.1719156564589; Sun, 23 Jun 2024 08:29:24 -0700 (PDT) Date: Sun, 23 Jun 2024 08:29:24 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000589156061b90544f@google.com> Subject: [syzbot] [can?] INFO: task hung in cangw_pernet_exit_batch (3) From: syzbot To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, linux-can@vger.kernel.org, linux-kernel@vger.kernel.org, mkl@pengutronix.de, netdev@vger.kernel.org, pabeni@redhat.com, socketcan@hartkopp.net, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 2ccbdf43d5e7 Merge tag 'for-linus' of git://git.kernel.org.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=16dd1f2e980000 kernel config: https://syzkaller.appspot.com/x/.config?x=fa0ce06dcc735711 dashboard link: https://syzkaller.appspot.com/bug?extid=21ad8c05e3792b6ffd14 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/27e64d7472ce/disk-2ccbdf43.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/e1c494bb5c9c/vmlinux-2ccbdf43.xz kernel image: https://storage.googleapis.com/syzbot-assets/752498985a5e/bzImage-2ccbdf43.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+21ad8c05e3792b6ffd14@syzkaller.appspotmail.com INFO: task kworker/u8:1:12 blocked for more than 143 seconds. Not tainted 6.10.0-rc3-syzkaller-00044-g2ccbdf43d5e7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u8:1 state:D stack:18160 pid:12 tgid:12 ppid:2 flags:0x00004000 Workqueue: netns cleanup_net Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 cangw_pernet_exit_batch+0x20/0x90 net/can/gw.c:1257 ops_exit_list net/core/net_namespace.c:178 [inline] cleanup_net+0x89f/0xcc0 net/core/net_namespace.c:640 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd70 kernel/workqueue.c:3393 kthread+0x2f2/0x390 kernel/kthread.c:389 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: task kworker/1:6:5181 blocked for more than 143 seconds. Not tainted 6.10.0-rc3-syzkaller-00044-g2ccbdf43d5e7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:6 state:D stack:20976 pid:5181 tgid:5181 ppid:2 flags:0x00004000 Workqueue: events_power_efficient crda_timeout_work Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 crda_timeout_work+0x15/0x50 net/wireless/reg.c:540 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd70 kernel/workqueue.c:3393 kthread+0x2f2/0x390 kernel/kthread.c:389 ret_from_fork+0x4 --- 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. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup