From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) (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 3233555C29 for ; Mon, 14 Oct 2024 03:15:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.198 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728875704; cv=none; b=si7DPbXo3a04+EPEE/AWLFzcGE3xRv85PAmr9EwzRA9l6PbG4vqNYV9Crsd4iBZmiVsEu9+sN9AJ0dTZVY39sWUusUCE/iEGmzOoMeWjIk/sHmPmNXi1uXPZCSb/rd5/+8qRfPvytqFn35znB9FzRChAHgmf7q8KCphQEBLrkdQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728875704; c=relaxed/simple; bh=iVLfpHKApjoKu6eP2+nvNJx+oTmlYOHX8CW6KH+B8PY=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=duq293+j6FQTHdtdC/r2f94wMf72gtfFM0nnk336aTJ+/rUzvhLSkjZ17DjyIFKJC9h62G6IUKS92eVrkiWVA39dDisOygp3NO7pTVnPKdnfKdsXHamYd0HdiR/E0H9CMAlxB+uYvtX/qd2vfxypr2XZWSaoxBJp+DqYsAJdmDU= 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=209.85.166.198 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-il1-f198.google.com with SMTP id e9e14a558f8ab-3a3ae775193so27826865ab.1 for ; Sun, 13 Oct 2024 20:15:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1728875702; x=1729480502; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=hsyYBXtsYMGaObkSqE1i1LWfzWKU9eVdPqDS2W9ueWY=; b=WDCgQP1zk6PEa6rYsfBGkCa5DU2sklmrFwGC7AyaKtiSMrW+37+V6JV0kJfFMAH+cT 1IDso7c1DmPeC+30NpEUthml5Z3e1m1ooj8b4IXkW2xOohXvvw84b/QBSkfxzszvCNrS xOlliE5QoVdMlKEofAFA8gc9nGX8pouAsLSYsnT4i+F14abUouJtwa7f3LDAQ9jjwwMb S3cLmWS73TfW+uG4V0rFXVIt/XBjgOubUIg7/fQjoSUpoXM7Hh68hJLH7YBpjaNXPJ/7 doH/+c7MKqURMHpL6EuE0IMOCsP+h81oYTtzG1x+dp9JEWpOJAvsK5Meutt6S915mJ7D UpJQ== X-Gm-Message-State: AOJu0YyGAaLOiNmXtBq2a2s84LvHT54yPvzv27KC6MPhV+3zUPWDoDuS iFw/z3Rba0aR4ehS0zzKlJb9/ZUF29o66ZJOWjByoLpnjQ4KN+nh/LZKR63xfPSTdJHvv1iCBKa cy93TL8Ks/7k+QLDjKc/4tgZWLXPRqGlL7TjgKA/K2BSnqxpeqpOHIRY= X-Google-Smtp-Source: AGHT+IFJ0wOpTQeAmevRy29Qjvb9ciRdsg0ymflsYFnVVKlqOqywr8ohkvOE8eosyo4TDCFWTP8eLv5mbS+sqVGxjG24KOp10zY2 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:20c8:b0:3a3:b497:f951 with SMTP id e9e14a558f8ab-3a3bce11c75mr35150865ab.23.1728875702389; Sun, 13 Oct 2024 20:15:02 -0700 (PDT) Date: Sun, 13 Oct 2024 20:15:02 -0700 In-Reply-To: <20241014025315.3272265-1-lizhi.xu@windriver.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <670c8cb6.050a0220.3e960.0051.GAE@google.com> Subject: Re: [syzbot] [wireless?] INFO: task hung in cfg80211_event_work (4) From: syzbot To: linux-kernel@vger.kernel.org, lizhi.xu@windriver.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: INFO: task hung in linkwatch_event INFO: task kworker/u4:4:72 blocked for more than 143 seconds. Not tainted 6.12.0-rc3-syzkaller-g6485cf5ea253-dirty #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u4:4 state:D stack:22040 pid:72 tgid:72 ppid:2 flags:0x00004000 Workqueue: events_unbound linkwatch_event Call Trace: context_switch kernel/sched/core.c:5322 [inline] __schedule+0x1895/0x4b30 kernel/sched/core.c:6682 __schedule_loop kernel/sched/core.c:6759 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6774 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752 linkwatch_event+0xe/0x60 net/core/link_watch.c:276 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: task kworker/u4:5:1026 blocked for more than 145 seconds. Not tainted 6.12.0-rc3-syzkaller-g6485cf5ea253-dirty #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u4:5 state:D stack:18672 pid:1026 tgid:1026 ppid:2 flags:0x00004000 Workqueue: ipv6_addrconf addrconf_dad_work Call Trace: context_switch kernel/sched/core.c:5322 [inline] __schedule+0x1895/0x4b30 kernel/sched/core.c:6682 __schedule_loop kernel/sched/core.c:6759 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6774 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752 addrconf_dad_work+0xd0/0x16f0 net/ipv6/addrconf.c:4196 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: task syz-executor:5592 blocked for more than 148 seconds. Not tainted 6.12.0-rc3-syzkaller-g6485cf5ea253-dirty #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:20608 pid:5592 tgid:5592 ppid:1 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5322 [inline] __schedule+0x1895/0x4b30 kernel/sched/core.c:6682 __schedule_loop kernel/sched/core.c:6759 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6774 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752 rtnl_lock net/core/rtnetlink.c:79 [inline] rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6672 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2551 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:729 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:744 __sys_sendto+0x39b/0x4f0 net/socket.c:2214 __do_sys_sendto net/socket.c:2226 [inline] __se_sys_sendto net/socket.c:2222 [inline] __x64_sys_sendto+0xde/0x100 net/socket.c:2222 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f039737fe8c RSP: 002b:00007ffdccf85eb0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f0398064620 RCX: 00007f039737fe8c RDX: 0000000000000040 RSI: 00007f0398064670 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007ffdccf85f04 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 R13: 0000000000000000 R14: 00007f0398064670 R15: 0000000000000000 INFO: task syz-executor:5596 blocked for more than 150 seconds. Not tainted 6.12.0-rc3-syzkaller-g6485cf5ea253-dirty #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:20992 pid:5596 tgid:5596 ppid:1 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5322 [inline] __schedule+0x1895/0x4b30 kernel/sched/core.c:6682 __schedule_loop kernel/sched/core.c:6759 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6774 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752 rtnl_lock net/core/rtnetlink.c:79 [inline] rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6672 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2551 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:729 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:744 __sys_sendto+0x39b/0x4f0 net/socket.c:2214 __do_sys_sendto net/socket.c:2226 [inline] __se_sys_sendto net/socket.c:2222 [inline] __x64_sys_sendto+0xde/0x100 net/socket.c:2222 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0717b7fe8c RSP: 002b:00007ffd44c63d10 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f0718864620 RCX: 00007f0717b7fe8c RDX: 000000000000002c RSI: 00007f0718864670 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007ffd44c63d64 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 R13: 0000000000000000 R14: 00007f0718864670 R15: 0000000000000000 Tested on: commit: 6485cf5e Merge tag 'hid-for-linus-2024101301' of git:/.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=132ca887980000 kernel config: https://syzkaller.appspot.com/x/.config?x=cfbd94c114a3d407 dashboard link: https://syzkaller.appspot.com/bug?extid=5506b2556159a1ab6923 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 patch: https://syzkaller.appspot.com/x/patch.diff?x=11bb4727980000