INFO: task kworker/R-mm_pe:13 blocked for more than 144 seconds.
Not tainted 6.12.0-rc3-syzkaller-00087-gc964ced77262 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/R-mm_pe state:D stack:30144 pid:13 tgid:13 ppid:2 flags:0x00004000
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0xef5/0x5750 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 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+0x5b8/0x9c0 kernel/locking/mutex.c:752
worker_attach_to_pool+0x27/0x420 kernel/workqueue.c:2669
rescuer_thread+0x3bf/0xe20 kernel/workqueue.c:3471
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>
INFO: task kworker/R-wg-cr:6096 blocked for more than 145 seconds.
Not tainted 6.12.0-rc3-syzkaller-00087-gc964ced77262 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/R-wg-cr state:D stack:30144 pid:6096 tgid:6096 ppid:2 flags:0x00004000
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0xef5/0x5750 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 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+0x5b8/0x9c0 kernel/locking/mutex.c:752
worker_attach_to_pool+0x27/0x420 kernel/workqueue.c:2669
rescuer_thread+0x3bf/0xe20 kernel/workqueue.c:3471
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>
INFO: task kworker/0:1:9812 blocked for more than 146 seconds.
Not tainted 6.12.0-rc3-syzkaller-00087-gc964ced77262 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:1 state:D stack:30832 pid:9812 tgid:9812 ppid:2 flags:0x00004000
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0xef5/0x5750 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
kthread+0x1fe/0x3a0 kernel/kthread.c:382
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>
Showing all locks held in the system:
3 locks held by kworker/u8:1/12:
#0: ffff88801beeb148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204
#1: ffffc90000117d80 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
#2: ffffffff8fecc810 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbb/0xb40 net/core/net_namespace.c:580
1 lock held by kworker/R-mm_pe/13:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x27/0x420 kernel/workqueue.c:2669
1 lock held by khungtaskd/30:
#0: ffffffff8e1b8340 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e1b8340 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e1b8340 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x7f/0x390 kernel/locking/lockdep.c:6720
1 lock held by kworker/R-write/32:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x27/0x420 kernel/workqueue.c:2669
2 locks held by kworker/u8:2/35:
#0: ffff88801b089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204
#1: ffffc90000ab7d80 (connector_reaper_work){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
1 lock held by kworker/R-bat_e/2861:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x27/0x420 kernel/workqueue.c:2669
2 locks held by getty/4979:
#0: ffff88802e8260a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfba/0x1480 drivers/tty/n_tty.c:2211
1 lock held by kworker/0:4/5279:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x27/0x420 kernel/workqueue.c:2669
1 lock held by kworker/R-wg-cr/6094:
1 lock held by kworker/R-wg-cr/6096:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x27/0x420 kernel/workqueue.c:2669
2 locks held by syz.4.175/6466:
1 lock held by kworker/u8:13/7147:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x27/0x420 kernel/workqueue.c:2669
3 locks held by kworker/u8:15/7341:
#0: ffff88801b089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204
#1: ffffc9000338fd80 ((work_completion)(&pool->idle_cull_work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
#2: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: idle_cull_fn+0x9a/0x450 kernel/workqueue.c:2951
3 locks held by kworker/u8:16/7342:
#0: ffff88801b089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204
#1: ffffc900092f7d80 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
#2: ffffffff8fee21a8 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0x51/0xc0 net/core/link_watch.c:276
1 lock held by kworker/u9:0/7343:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x27/0x420 kernel/workqueue.c:2669
3 locks held by kworker/u8:18/7346:
2 locks held by kworker/u8:19/7349:
#0: ffff88801b089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204
#1: ffffc900043bfd80 ((reaper_work).work){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
1 lock held by kworker/1:4/7782:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x27/0x420 kernel/workqueue.c:2669
2 locks held by kworker/0:0/8503:
1 lock held by kworker/1:2/9237:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_thread+0x7c4/0xf00 kernel/workqueue.c:3349
2 locks held by kworker/u8:5/9371:
#0: ffff88801b089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204
#1: ffffc9000310fd80 ((work_completion)(&pool->idle_cull_work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
1 lock held by kworker/R-bond0/9551:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0x9f7/0xe20 kernel/workqueue.c:3535
1 lock held by kworker/R-wg-cr/9569:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool kernel/workqueue.c:2727 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0x856/0xe20 kernel/workqueue.c:3526
1 lock held by kworker/R-wg-cr/9573:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool kernel/workqueue.c:2727 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0x856/0xe20 kernel/workqueue.c:3526
1 lock held by kworker/R-wg-cr/9579:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool kernel/workqueue.c:2727 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0x856/0xe20 kernel/workqueue.c:3526
1 lock held by kworker/R-wg-cr/9592:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool kernel/workqueue.c:2727 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0x856/0xe20 kernel/workqueue.c:3526
1 lock held by kworker/R-wg-cr/9619:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool kernel/workqueue.c:2727 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0x856/0xe20 kernel/workqueue.c:3526
1 lock held by kworker/R-wg-cr/9620:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x27/0x420 kernel/workqueue.c:2669
1 lock held by kworker/R-bond0/9831:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-bond0/9834:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-bond0/9835:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-wg-cr/9840:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-bond0/9841:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-wg-cr/9846:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-wg-cr/9887:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-wg-cr/9890:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-wg-cr/9893:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-wg-cr/9894:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-wg-cr/9895:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-wg-cr/9898:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-wg-cr/9899:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-wg-cr/9901:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-wg-cr/9902:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-wg-cr/9911:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
3 locks held by syz-executor/10038:
#0: ffff888066eb0d80 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x26/0x90 net/bluetooth/hci_core.c:481
#1: ffff888066eb0078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x346/0x1110 net/bluetooth/hci_sync.c:5183
#2: ffffffff9014a9e8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1972 [inline]
#2: ffffffff9014a9e8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xc4/0x260 net/bluetooth/hci_conn.c:2592
1 lock held by kworker/R-bond0/10057:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
3 locks held by syz-executor/10062:
#0: ffff88804993cd80 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x26/0x90 net/bluetooth/hci_core.c:481
#1: ffff88804993c078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x346/0x1110 net/bluetooth/hci_sync.c:5183
#2: ffffffff9014a9e8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1972 [inline]
#2: ffffffff9014a9e8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xc4/0x260 net/bluetooth/hci_conn.c:2592
4 locks held by syz-executor/10065:
#0: ffff888077128d80 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x26/0x90 net/bluetooth/hci_core.c:481
#1: ffff888077128078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x346/0x1110 net/bluetooth/hci_sync.c:5183
#2: ffffffff9014a9e8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1972 [inline]
#2: ffffffff9014a9e8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xc4/0x260 net/bluetooth/hci_conn.c:2592
#3: ffffffff8e1c3c38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock+0x1a4/0x3b0 kernel/rcu/tree_exp.h:329
1 lock held by syz-executor/10066:
#0: ffffffff8fee21a8 (rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:698 [inline]
#0: ffffffff8fee21a8 (rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x38/0x230 drivers/net/tun.c:3517
3 locks held by syz-executor/10077:
#0: ffff88807ad94d80 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x26/0x90 net/bluetooth/hci_core.c:481
#1: ffff88807ad94078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x346/0x1110 net/bluetooth/hci_sync.c:5183
#2: ffffffff9014a9e8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1972 [inline]
#2: ffffffff9014a9e8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xc4/0x260 net/bluetooth/hci_conn.c:2592
1 lock held by kworker/R-wg-cr/10085:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-wg-cr/10086:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-wg-cr/10088:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-bond0/10095:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-bond0/10096:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-bond0/10100:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-bond0/10101:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-wg-cr/10104:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-wg-cr/10106:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-wg-cr/10107:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-wg-cr/10108:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-wg-cr/10109:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-wg-cr/10110:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-wg-cr/10111:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-wg-cr/10112:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-wg-cr/10113:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-wg-cr/10114:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-wg-cr/10115:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
1 lock held by kworker/R-wg-cr/10116:
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3316 [inline]
#0: ffffffff8e071ac8 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xc6/0xe20 kernel/workqueue.c:3443
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-rc3-syzkaller-00087-gc964ced77262 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xf0c/0x1240 kernel/hung_task.c:379
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
NMI backtrace for cpu 0 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:106 [inline]
NMI backtrace for cpu 0 skipped: idling at acpi_safe_halt+0x1a/0x20 drivers/acpi/processor_idle.c:111