INFO: task syz.5.4391:28174 blocked for more than 143 seconds.
      Tainted: G     U       L      syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.5.4391      state:D stack:27496 pid:28174 tgid:28173 ppid:27698  task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7017
 __mutex_lock_common kernel/locking/mutex.c:692 [inline]
 __mutex_lock+0xc69/0x1ca0 kernel/locking/mutex.c:776
 nfsd_nl_listener_get_doit+0x13e/0x7b0 fs/nfsd/nfsctl.c:2030
 genl_family_rcv_msg_doit+0x209/0x2f0 net/netlink/genetlink.c:1115
 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]
 genl_rcv_msg+0x55c/0x800 net/netlink/genetlink.c:1210
 netlink_rcv_skb+0x158/0x420 net/netlink/af_netlink.c:2550
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x5aa/0x870 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x8c8/0xdd0 net/netlink/af_netlink.c:1894
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg net/socket.c:742 [inline]
 ____sys_sendmsg+0xa5d/0xc30 net/socket.c:2592
 ___sys_sendmsg+0x134/0x1d0 net/socket.c:2646
 __sys_sendmsg+0x16d/0x220 net/socket.c:2678
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcd6c98f7c9
RSP: 002b:00007fcd6d8e6038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fcd6cbe5fa0 RCX: 00007fcd6c98f7c9
RDX: 0000000000000000 RSI: 0000200000001240 RDI: 0000000000000004
RBP: 00007fcd6ca13f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fcd6cbe6038 R14: 00007fcd6cbe5fa0 R15: 00007ffd73587928
 </TASK>

Showing all locks held in the system:
2 locks held by ksoftirqd/0/15:
 #0: ffff8880b843add8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:647 [inline]
 #0: ffff8880b843add8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x7e/0x130 kernel/sched/core.c:632
 #1: ffff8880b8424608 (psi_seq){-.-.}-{0:0}, at: psi_sched_switch kernel/sched/stats.h:225 [inline]
 #1: ffff8880b8424608 (psi_seq){-.-.}-{0:0}, at: __schedule+0x19b1/0x6150 kernel/sched/core.c:6857
1 lock held by khungtaskd/31:
 #0: ffffffff8e3c94a0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #0: ffffffff8e3c94a0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:867 [inline]
 #0: ffffffff8e3c94a0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x36/0x1c0 kernel/locking/lockdep.c:6775
3 locks held by kworker/0:2/117:
 #0: ffff88813ff55948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x128d/0x1b20 kernel/workqueue.c:3232
 #1: ffffc90002e47c90 ((fqdir_free_work).work){+.+.}-{0:0}, at: process_one_work+0x914/0x1b20 kernel/workqueue.c:3233
 #2: ffffffff8e3d4ac0 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x48/0x6e0 kernel/rcu/tree.c:3816
7 locks held by kworker/u10:27/18767:
 #0: ffff8880b843add8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:647 [inline]
 #0: ffff8880b843add8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x7e/0x130 kernel/sched/core.c:632
 #1: 
ffff8880b8424608
 (
psi_seq){-.-.}-{0:0}, at: psi_sched_switch kernel/sched/stats.h:225 [inline]
psi_seq){-.-.}-{0:0}, at: __schedule+0x19b1/0x6150 kernel/sched/core.c:6857
 #2: 
ffff8880b843add8
 (
&rq->__lock){-.-.}-{2:2}, at: __debug_check_no_obj_freed lib/debugobjects.c:1088 [inline]
&rq->__lock){-.-.}-{2:2}, at: debug_check_no_obj_freed+0x1c9/0x600 lib/debugobjects.c:1129
 #3: ffffffff8e3c94a0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #3: ffffffff8e3c94a0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:867 [inline]
 #3: ffffffff8e3c94a0 (rcu_read_lock){....}-{1:3}, at: batadv_iv_ogm_schedule_buff+0xb98/0x14c0 net/batman-adv/bat_iv_ogm.c:849
 #4: ffffffff8e010138 (bit_wait_table + i){..-.}-{3:3}, at: __wake_up_common_lock kernel/sched/wait.c:124 [inline]
 #4: ffffffff8e010138 (bit_wait_table + i){..-.}-{3:3}, at: __wake_up kernel/sched/wait.c:146 [inline]
 #4: ffffffff8e010138 (bit_wait_table + i){..-.}-{3:3}, at: __wake_up_bit kernel/sched/wait_bit.c:129 [inline]
 #4: ffffffff8e010138 (bit_wait_table + i){..-.}-{3:3}, at: wake_up_bit+0xcf/0x140 kernel/sched/wait_bit.c:160
 #5: ffff8880b84262d8 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x127/0x1d0 kernel/time/timer.c:1004
 #6: ffffffff9aea5160 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x14c/0x4c0 lib/debugobjects.c:818
2 locks held by syz.3.2815/20710:
 #0: ffff888058c1c0e0 (&type->s_umount_key#52){+.+.}-{4:4}, at: __super_lock fs/super.c:57 [inline]
 #0: ffff888058c1c0e0 (&type->s_umount_key#52){+.+.}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline]
 #0: ffff888058c1c0e0 (&type->s_umount_key#52){+.+.}-{4:4}, at: deactivate_super fs/super.c:506 [inline]
 #0: ffff888058c1c0e0 (&type->s_umount_key#52){+.+.}-{4:4}, at: deactivate_super+0xd6/0x100 fs/super.c:503
 #1: ffffffff8e8011e8 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_shutdown_threads+0x5b/0xf0 fs/nfsd/nfssvc.c:575
2 locks held by kworker/u10:41/21300:
 #0: ffff88801e7c8148 ((wq_completion)iou_exit){+.+.}-{0:0}, at: process_one_work+0x128d/0x1b20 kernel/workqueue.c:3232
 #1: ffffc9000ed97c90 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x914/0x1b20 kernel/workqueue.c:3233
2 locks held by syz-executor/22242:
2 locks held by kworker/u10:43/24358:
2 locks held by syz.2.4229/27447:
 #0: ffffffff901eb350 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218
 #1: 
ffffffff8e8011e8
 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_threads_set_doit+0x687/0xbc0 fs/nfsd/nfsctl.c:1590
2 locks held by syz.5.4391/28174:
 #0: ffffffff901eb350 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218
 #1: ffffffff8e8011e8 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_get_doit+0x13e/0x7b0 fs/nfsd/nfsctl.c:2030
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:kworker/u10:14  state:I stack:24376 pid:18545 tgid:18545 ppid:2      task_flags:0x4208160 flags:0x00080000
Workqueue:  0x0 (events_unbound)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3436
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:kworker/u10:15  state:I stack:23800 pid:18546 tgid:18546 ppid:2      task_flags:0x4208160 flags:0x00080000
Workqueue:  0x0 (events_unbound)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3436
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:kworker/u10:16  state:I stack:24872 pid:18547 tgid:18547 ppid:2      task_flags:0x4208160 flags:0x00080000
Workqueue:  0x0 (events_unbound)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3436
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:kworker/u10:17  state:I stack:23976 pid:18550 tgid:18550 ppid:2      task_flags:0x4208160 flags:0x00080000
Workqueue:  0x0 (events_unbound)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3436
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:kworker/R-wg-cr state:I stack:30992 pid:18556 tgid:18556 ppid:2      task_flags:0x4208060 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 rescuer_thread+0x7e4/0xf10 kernel/workqueue.c:3581
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:kworker/R-wg-cr state:I stack:30992 pid:18559 tgid:18559 ppid:2      task_flags:0x4208060 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 rescuer_thread+0x7e4/0xf10 kernel/workqueue.c:3581
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:kworker/u10:18  state:I stack:24376 pid:18563 tgid:18563 ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue:  0x0 (iou_exit)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3436
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:kworker/u10:19  state:I stack:26600 pid:18564 tgid:18564 ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue:  0x0 (iou_exit)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3436
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:kworker/u10:20  state:I stack:24872 pid:18565 tgid:18565 ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue:  0x0 (iou_exit)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3436
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:kworker/u10:21  state:I stack:24872 pid:18566 tgid:18566 ppid:2      task_flags:0x4208160 flags:0x00080000
Workqueue:  0x0 (events_unbound)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3436
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:napi/wg0-0      state:S stack:29432 pid:18658 tgid:18658 ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 napi_thread_wait net/core/dev.c:7760 [inline]
 napi_threaded_poll+0xfc/0x450 net/core/dev.c:7823
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:napi/wg0-0      state:S stack:29432 pid:18659 tgid:18659 ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 napi_thread_wait net/core/dev.c:7760 [inline]
 napi_threaded_poll+0xfc/0x450 net/core/dev.c:7823
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:napi/wg1-0      state:S stack:29432 pid:18660 tgid:18660 ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 napi_thread_wait net/core/dev.c:7760 [inline]
 napi_threaded_poll+0xfc/0x450 net/core/dev.c:7823
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:napi/wg1-0      state:S stack:27064 pid:18661 tgid:18661 ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 napi_thread_wait net/core/dev.c:7760 [inline]
 napi_threaded_poll+0xfc/0x450 net/core/dev.c:7823
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:ptp1            state:S stack:29848 pid:18725 tgid:18725 ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 kthread_worker_fn+0x516/0xbf0 kernel/kthread.c:1012
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:kworker/u10:22  state:I stack:23800 pid:18759 tgid:18759 ppid:2      task_flags:0x4208160 flags:0x00080000
Workqueue:  0x0 (xprtiod)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3436
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:kworker/u10:23  state:I stack:24872 pid:18761 tgid:18761 ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue:  0x0 (xprtiod)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3436
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:kworker/u10:25  state:I stack:23800 pid:18763 tgid:18763 ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue:  0x0 (flush-8:0)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3436
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:kworker/u10:26  state:I stack:23800 pid:18765 tgid:18765 ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue:  0x0 (iou_exit)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3436
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:kworker/u10:27  state:I stack:24872 pid:18767 tgid:18767 ppid:2      task_flags:0x4208160 flags:0x00080000
Workqueue:  0x0 (events_unbound)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3436
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:kworker/u10:28  state:I stack:23544 pid:18768 tgid:18768 ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue:  0x0 (iou_exit)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3436
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:kworker/u10:29  state:I stack:24680 pid:18769 tgid:18769 ppid:2      task_flags:0x4208160 flags:0x00080000
Workqueue:  0x0 (events_unbound)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3436
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:kworker/u10:30  state:I stack:24872 pid:18770 tgid:18770 ppid:2      task_flags:0x4208160 flags:0x00080000
Workqueue:  0x0 (events_unbound)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3436
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:kworker/u10:31  state:I stack:24872 pid:18771 tgid:18771 ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue:  0x0 (iou_exit)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3436
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:kworker/u10:32  state:I stack:23976 pid:18772 tgid:18772 ppid:2      task_flags:0x4208160 flags:0x00080000
Workqueue:  0x0 (gid-cache-wq)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3436
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:kworker/u10:33  state:I stack:23800 pid:18773 tgid:18773 ppid:2      task_flags:0x4208160 flags:0x00080000
Workqueue:  0x0 (writeback)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3436
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:kworker/u10:34  state:I stack:23976 pid:18774 tgid:18774 ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue:  0x0 (iou_exit)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3436
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:syz-executor    state:S stack:23848 pid:18850 tgid:18850 ppid:1      task_flags:0x40054c flags:0x00080001
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 do_wait+0x1d7/0x570 kernel/exit.c:1721
 kernel_wait4+0x16b/0x280 kernel/exit.c:1875
 zap_pid_ns_processes+0x2e1/0x6d0 kernel/pid_namespace.c:244
 find_child_reaper kernel/exit.c:622 [inline]
 forget_original_parent kernel/exit.c:706 [inline]
 exit_notify kernel/exit.c:743 [inline]
 do_exit+0x2476/0x2bd0 kernel/exit.c:983
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1112
 get_signal+0x2671/0x26d0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x8f/0x7a0 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline]
 exit_to_user_mode_loop+0x8c/0x540 kernel/entry/common.c:75
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline]
 do_syscall_64+0x4ee/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1edfb85917
RSP: 002b:00007ffc984c59a0 EFLAGS: 00000293 ORIG_RAX: 000000000000003d
RAX: fffffffffffffe00 RBX: 000000000000071f RCX: 00007f1edfb85917
RDX: 0000000040000000 RSI: 00007ffc984c5a0c RDI: 00000000ffffffff
RBP: 00007ffc984c5a0c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 00000000000001ba
R13: 000055557a832590 R14: 0000000000122cf2 R15: 00007ffc984c5a60
 </TASK>
task:krxrpcio/7001   state:S stack:30504 pid:18872 tgid:18872 ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 rxrpc_io_thread+0x1942/0x3da0 net/rxrpc/io_thread.c:593
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:kworker/R-bond0 state:I stack:30992 pid:18874 tgid:18874 ppid:2      task_flags:0x4208060 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 rescuer_thread+0x7e4/0xf10 kernel/workqueue.c:3581
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:kworker/R-wg-cr state:I stack:30992 pid:18891 tgid:18891 ppid:2      task_flags:0x4208060 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 rescuer_thread+0x7e4/0xf10 kernel/workqueue.c:3581
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:kworker/R-wg-cr state:I stack:30992 pid:18892 tgid:18892 ppid:2      task_flags:0x4208060 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 rescuer_thread+0x7e4/0xf10 kernel/workqueue.c:3581
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:kworker/R-wg-cr state:I stack:30992 pid:18893 tgid:18893 ppid:2      task_flags:0x4208060 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 rescuer_thread+0x7e4/0xf10 kernel/workqueue.c:3581
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:dhcpcd          state:S stack:26152 pid:18976 tgid:18976 ppid:5494   task_flags:0x400140 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 schedule_hrtimeout_range_clock+0x2dc/0x320 kernel/time/sleep_timeout.c:207
 poll_schedule_timeout.constprop.0+0xc4/0x1c0 fs/select.c:241
 do_poll fs/select.c:954 [inline]
 do_sys_poll+0xae7/0xdf0 fs/select.c:1005
 __do_sys_ppoll fs/select.c:1111 [inline]
 __se_sys_ppoll fs/select.c:1091 [inline]
 __x64_sys_ppoll+0x254/0x2d0 fs/select.c:1091
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa5e7580407
RSP: 002b:00007ffdb29f3510 EFLAGS: 00000202 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 00007fa5e74f6740 RCX: 00007fa5e7580407
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 000055825487b360
RBP: 00007ffdb29f3850 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffdb29f3850 R11: 0000000000000202 R12: 0000558246d335e0
R13: 000055825486ed40 R14: 0000000000000000 R15: 00007ffdb29f3600
 </TASK>
task:napi/wg0-0      state:S stack:29432 pid:18997 tgid:18997 ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 napi_thread_wait net/core/dev.c:7760 [inline]
 napi_threaded_poll+0xfc/0x450 net/core/dev.c:7823
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:napi/wg0-0      state:S stack:29432 pid:18998 tgid:18998 ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 napi_thread_wait net/core/dev.c:7760 [inline]
 napi_threaded_poll+0xfc/0x450 net/core/dev.c:7823
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:napi/wg1-0      state:S stack:29432 pid:19000 tgid:19000 ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 napi_thread_wait net/core/dev.c:7760 [inline]
 napi_threaded_poll+0xfc/0x450 net/core/dev.c:7823
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:napi/wg1-0      state:S stack:27064 pid:19001 tgid:19001 ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 napi_thread_wait net/core/dev.c:7760 [inline]
 napi_threaded_poll+0xfc/0x450 net/core/dev.c:7823
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:napi/wg2-0      state:S stack:29432 pid:19004 tgid:19004 ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 napi_thread_wait net/core/dev.c:7760 [inline]
 napi_threaded_poll+0xfc/0x450 net/core/dev.c:7823
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:napi/wg2-0      state:S stack:27064 pid:19005 tgid:19005 ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 napi_thread_wait net/core/dev.c:7760 [inline]
 napi_threaded_poll+0xfc/0x450 net/core/dev.c:7823
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:dhcpcd          state:S stack:26152 pid:19107 tgid:19107 ppid:5494   task_flags:0x400140 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 schedule_hrtimeout_range_clock+0x2dc/0x320 kernel/time/sleep_timeout.c:207
 poll_schedule_timeout.constprop.0+0xc4/0x1c0 fs/select.c:241
 do_poll fs/select.c:954 [inline]
 do_sys_poll+0xae7/0xdf0 fs/select.c:1005
 __do_sys_ppoll fs/select.c:1111 [inline]
 __se_sys_ppoll fs/select.c:1091 [inline]
 __x64_sys_ppoll+0x254/0x2d0 fs/select.c:1091
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa5e7580407
RSP: 002b:00007ffdb29f3510 EFLAGS: 00000202 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 00007fa5e74f6740 RCX: 00007fa5e7580407
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 000055825487b8a0
RBP: 00007ffdb29f3850 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffdb29f3850 R11: 0000000000000202 R12: 0000558246d335e0
R13: 000055825486ed40 R14: 0000000000000000 R15: 00007ffdb29f3600
 </TASK>
task:dhcpcd          state:S stack:26136 pid:19113 tgid:19113 ppid:5494   task_flags:0x400140 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 schedule_hrtimeout_range_clock+0x2dc/0x320 kernel/time/sleep_timeout.c:207
 poll_schedule_timeout.constprop.0+0xc4/0x1c0 fs/select.c:241
 do_poll fs/select.c:954 [inline]
 do_sys_poll+0xae7/0xdf0 fs/select.c:1005
 __do_sys_ppoll fs/select.c:1111 [inline]
 __se_sys_ppoll fs/select.c:1091 [inline]
 __x64_sys_ppoll+0x254/0x2d0 fs/select.c:1091
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa5e7580407
RSP: 002b:00007ffdb29f3510 EFLAGS: 00000202 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 00007fa5e74f6740 RCX: 00007fa5e7580407
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 000055825487b8a0
RBP: 00007ffdb29f3850 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffdb29f3850 R11: 0000000000000202 R12: 0000558246d335e0
R13: 000055825486ed40 R14: 0000000000000000 R15: 00007ffdb29f3600
 </TASK>
task:dhcpcd          state:S stack:26136 pid:19141 tgid:19141 ppid:5494   task_flags:0x400140 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 schedule_hrtimeout_range_clock+0x2dc/0x320 kernel/time/sleep_timeout.c:207
 poll_schedule_timeout.constprop.0+0xc4/0x1c0 fs/select.c:241
 do_poll fs/select.c:954 [inline]
 do_sys_poll+0xae7/0xdf0 fs/select.c:1005
 __do_sys_ppoll fs/select.c:1111 [inline]
 __se_sys_ppoll fs/select.c:1091 [inline]
 __x64_sys_ppoll+0x254/0x2d0 fs/select.c:1091
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa5e7580407
RSP: 002b:00007ffdb29f3510 EFLAGS: 00000202 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 00007fa5e74f6740 RCX: 00007fa5e7580407
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 000055825487b8a0
RBP: 00007ffdb29f3850 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffdb29f3850 R11: 0000000000000202 R12: 0000558246d335e0
R13: 000055825486ed40 R14: 0000000000000000 R15: 00007ffdb29f3600
 </TASK>
task:dhcpcd          state:S stack:26136 pid:19153 tgid:19153 ppid:5494   task_flags:0x400140 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 schedule_hrtimeout_range_clock+0x2dc/0x320 kernel/time/sleep_timeout.c:207
 poll_schedule_timeout.constprop.0+0xc4/0x1c0 fs/select.c:241
 do_poll fs/select.c:954 [inline]
 do_sys_poll+0xae7/0xdf0 fs/select.c:1005
 __do_sys_ppoll fs/select.c:1111 [inline]
 __se_sys_ppoll fs/select.c:1091 [inline]
 __x64_sys_ppoll+0x254/0x2d0 fs/select.c:1091
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa5e7580407
RSP: 002b:00007ffdb29f3510 EFLAGS: 00000202 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 00007fa5e74f6740 RCX: 00007fa5e7580407
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 000055825487b8a0
RBP: 00007ffdb29f3850 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffdb29f3850 R11: 0000000000000202 R12: 0000558246d335e0
R13: 000055825486ed40 R14: 0000000000000000 R15: 00007ffdb29f3600
 </TASK>
task:dhcpcd          state:S stack:27208 pid:19210 tgid:19210 ppid:5494   task_flags:0x400140 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 schedule_hrtimeout_range_clock+0x2dc/0x320 kernel/time/sleep_timeout.c:207
 poll_schedule_timeout.constprop.0+0xc4/0x1c0 fs/select.c:241
 do_poll fs/select.c:954 [inline]
 do_sys_poll+0xae7/0xdf0 fs/select.c:1005
 __do_sys_ppoll fs/select.c:1111 [inline]
 __se_sys_ppoll fs/select.c:1091 [inline]
 __x64_sys_ppoll+0x254/0x2d0 fs/select.c:1091
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa5e7580407
RSP: 002b:00007ffdb29f3510 EFLAGS: 00000202 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 00007fa5e74f6740 RCX: 00007fa5e7580407
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 000055825487b8a0
RBP: 00007ffdb29f3850 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffdb29f3850 R11: 0000000000000202 R12: 0000558246d335e0
R13: 000055825486ed40 R14: 0000000000000000 R15: 00007ffdb29f3600
 </TASK>
task:dhcpcd          state:S stack:26136 pid:19255 tgid:19255 ppid:5494   task_flags:0x400140 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 schedule_hrtimeout_range_clock+0x2dc/0x320 kernel/time/sleep_timeout.c:207
 poll_schedule_timeout.constprop.0+0xc4/0x1c0 fs/select.c:241
 do_poll fs/select.c:954 [inline]
 do_sys_poll+0xae7/0xdf0 fs/select.c:1005
 __do_sys_ppoll fs/select.c:1111 [inline]
 __se_sys_ppoll fs/select.c:1091 [inline]
 __x64_sys_ppoll+0x254/0x2d0 fs/select.c:1091
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa5e7580407
RSP: 002b:00007ffdb29f3510 EFLAGS: 00000202 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 00007fa5e74f6740 RCX: 00007fa5e7580407
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 000055825487b8a0
RBP: 00007ffdb29f3850 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffdb29f3850 R11: 0000000000000202 R12: 0000558246d335e0
R13: 000055825486ed40 R14: 0000000000000000 R15: 00007ffdb29f3600
 </TASK>
task:dhcpcd          state:S stack:27208 pid:19256 tgid:19256 ppid:5494   task_flags:0x400140 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 schedule_hrtimeout_range_clock+0x2dc/0x320 kernel/time/sleep_timeout.c:207
 poll_schedule_timeout.constprop.0+0xc4/0x1c0 fs/select.c:241
 do_poll fs/select.c:954 [inline]
 do_sys_poll+0xae7/0xdf0 fs/select.c:1005
 __do_sys_ppoll fs/select.c:1111 [inline]
 __se_sys_ppoll fs/select.c:1091 [inline]
 __x64_sys_ppoll+0x254/0x2d0 fs/select.c:1091
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa5e7580407
RSP: 002b:00007ffdb29f3510 EFLAGS: 00000202 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 00007fa5e74f6740 RCX: 00007fa5e7580407
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 000055825487b8a0
RBP: 00007ffdb29f3850 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffdb29f3850 R11: 0000000000000202 R12: 0000558246d335e0
R13: 000055825486ed40 R14: 0000000000000000 R15: 00007ffdb29f3600
 </TASK>
task:ptp2            state:S stack:29768 pid:19302 tgid:19302 ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 kthread_worker_fn+0x516/0xbf0 kernel/kthread.c:1012
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:ptp3            state:S stack:30184 pid:19303 tgid:19303 ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 kthread_worker_fn+0x516/0xbf0 kernel/kthread.c:1012
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:syz.3.2815      state:D stack:27400 pid:20710 tgid:20710 ppid:18517  task_flags:0x40044c flags:0x00080003
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7017
 __mutex_lock_common kernel/locking/mutex.c:692 [inline]
 __mutex_lock+0xc69/0x1ca0 kernel/locking/mutex.c:776
 nfsd_shutdown_threads+0x5b/0xf0 fs/nfsd/nfssvc.c:575
 nfsd_umount+0x3b/0x60 fs/nfsd/nfsctl.c:1347
 deactivate_locked_super+0xc1/0x1a0 fs/super.c:474
 deactivate_super fs/super.c:507 [inline]
 deactivate_super+0xde/0x100 fs/super.c:503
 cleanup_mnt+0x225/0x450 fs/namespace.c:1318
 task_work_run+0x150/0x240 kernel/task_work.c:233
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x87f/0x2bd0 kernel/exit.c:971
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1112
 get_signal+0x2671/0x26d0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x8f/0x7a0 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline]
 exit_to_user_mode_loop+0x8c/0x540 kernel/entry/common.c:75
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline]
 do_syscall_64+0x4ee/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9f307c2085
RSP: 002b:00007f9f31585f80 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6
RAX: fffffffffffffdfc RBX: 00007f9f309e5fa0 RCX: 00007f9f307c2085
RDX: 00007f9f31585fc0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f9f30813f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007f9f309e6038 R14: 00007f9f309e5fa0 R15: 00007ffd77802c68
 </TASK>
task:kworker/u10:35  state:I stack:24872 pid:21294 tgid:21294 ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue:  0x0 (iou_exit)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3436
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:kworker/u10:36  state:I stack:24872 pid:21295 tgid:21295 ppid:2      task_flags:0x4208160 flags:0x00080000
Workqueue:  0x0 (events_unbound)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3436
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:kworker/u10:37  state:I stack:24664 pid:21296 tgid:21296 ppid:2      task_flags:0x4208160 flags:0x00080000
Workqueue:  0x0 (events_unbound)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3436
 kthread+0x3c5/0x780 kernel/kthread.c:463