BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low! turning off the locking correctness validator. CPU: 0 UID: 0 PID: 7210 Comm: kworker/u8:10 Not tainted 6.12.0-syzkaller-g7b1d1d4cfac0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: netns cleanup_net Call trace: show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:484 (C) __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:120 dump_stack+0x1c/0x28 lib/dump_stack.c:129 lookup_chain_cache_add kernel/locking/lockdep.c:3851 [inline] validate_chain kernel/locking/lockdep.c:3872 [inline] __lock_acquire+0x1fb8/0x77c8 kernel/locking/lockdep.c:5202 lock_acquire+0x240/0x728 kernel/locking/lockdep.c:5825 do_write_seqcount_begin_nested include/linux/seqlock.h:454 [inline] do_write_seqcount_begin include/linux/seqlock.h:480 [inline] psi_group_change+0x270/0x11d8 kernel/sched/psi.c:792 psi_task_change+0xf4/0x228 kernel/sched/psi.c:912 psi_enqueue kernel/sched/stats.h:158 [inline] enqueue_task+0x1d0/0x204 kernel/sched/core.c:2029 activate_task kernel/sched/core.c:2067 [inline] ttwu_do_activate+0x19c/0x688 kernel/sched/core.c:3680 ttwu_queue kernel/sched/core.c:3953 [inline] try_to_wake_up+0x6a4/0x1274 kernel/sched/core.c:4281 wake_up_process+0x18/0x24 kernel/sched/core.c:4414 kthread_insert_work+0x2b4/0x500 kernel/kthread.c:1009 kthread_queue_work+0x10c/0x190 kernel/kthread.c:1032 synchronize_rcu_expedited_queue_work kernel/rcu/tree_exp.h:489 [inline] synchronize_rcu_expedited+0x43c/0x674 kernel/rcu/tree_exp.h:986 synchronize_net net/core/dev.c:11286 [inline] netdev_rx_handler_unregister+0xa4/0x10c net/core/dev.c:5415 team_port_del+0x394/0xaec drivers/net/team/team_core.c:1352 team_del_slave+0x44/0x1a4 drivers/net/team/team_core.c:1991 team_device_event+0x25c/0x4d4 drivers/net/team/team_core.c:2984 notifier_call_chain+0x1b4/0x538 kernel/notifier.c:93 raw_notifier_call_chain+0x3c/0x50 kernel/notifier.c:461 call_netdevice_notifiers_info net/core/dev.c:1996 [inline] call_netdevice_notifiers_extack net/core/dev.c:2034 [inline] call_netdevice_notifiers net/core/dev.c:2048 [inline] unregister_netdevice_many_notify+0xde0/0x1c64 net/core/dev.c:11407 unregister_netdevice_many net/core/dev.c:11469 [inline] default_device_exit_batch+0xa00/0xa80 net/core/dev.c:11952 ops_exit_list net/core/net_namespace.c:178 [inline] cleanup_net+0x6b8/0x9b4 net/core/net_namespace.c:626 process_one_work+0x7bc/0x1600 kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x97c/0xeec kernel/workqueue.c:3391 kthread+0x288/0x310 kernel/kthread.c:389 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim6 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim6 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim6 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim6 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 bridge_slave_1: left allmulticast mode bridge_slave_1: left promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state bridge_slave_0: left allmulticast mode bridge_slave_0: left promiscuous mode bridge0: port 1(bridge_slave_0) entered disabled state bridge_slave_1: left allmulticast mode bridge_slave_1: left promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state bridge_slave_0: left allmulticast mode bridge_slave_0: left promiscuous mode bridge0: port 1(bridge_slave_0) entered disabled state bond0 (unregistering): (slave bond_slave_0): Releasing backup interface bond0 (unregistering): (slave bond_slave_1): Releasing backup interface bond0 (unregistering): Released all slaves bond0 (unregistering): (slave bond_slave_1): Releasing backup interface bond0 (unregistering): Released all slaves hsr_slave_0: left promiscuous mode hsr_slave_1: left promiscuous mode batman_adv: batadv0: Interface deactivated: batadv_slave_0 batman_adv: batadv0: Removing interface: batadv_slave_0 batman_adv: batadv0: Interface deactivated: batadv_slave_1 batman_adv: batadv0: Removing interface: batadv_slave_1 hsr_slave_0: left promiscuous mode hsr_slave_1: left promiscuous mode batman_adv: batadv0: Interface deactivated: batadv_slave_0 batman_adv: batadv0: Removing interface: batadv_slave_0 batman_adv: batadv0: Interface deactivated: batadv_slave_1 batman_adv: batadv0: Removing interface: batadv_slave_1 veth1_macvtap: left promiscuous mode veth0_macvtap: left promiscuous mode veth1_vlan: left promiscuous mode veth0_vlan: left promiscuous mode veth1_macvtap: left promiscuous mode veth0_macvtap: left promiscuous mode veth1_vlan: left promiscuous mode veth0_vlan: left promiscuous mode team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed