device veth1_macvtap left promiscuous mode device veth0_macvtap left promiscuous mode device veth1_vlan left promiscuous mode device veth0_vlan left promiscuous mode BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low! turning off the locking correctness validator. CPU: 0 PID: 601 Comm: kworker/u4:6 Not tainted 5.6.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x188/0x20d lib/dump_stack.c:118 add_chain_cache kernel/locking/lockdep.c:2840 [inline] lookup_chain_cache_add kernel/locking/lockdep.c:2914 [inline] validate_chain kernel/locking/lockdep.c:2935 [inline] __lock_acquire.cold+0x263/0x288 kernel/locking/lockdep.c:3954 lock_acquire+0x197/0x420 kernel/locking/lockdep.c:4484 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:175 spin_lock_bh include/linux/spinlock.h:343 [inline] ipvlan_del_addr+0x21/0x1a0 drivers/net/ipvlan/ipvlan_main.c:807 ipvlan_del_addr4 drivers/net/ipvlan/ipvlan_main.c:919 [inline] ipvlan_addr4_event+0x1d2/0x360 drivers/net/ipvlan/ipvlan_main.c:942 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 __blocking_notifier_call_chain kernel/notifier.c:284 [inline] __blocking_notifier_call_chain kernel/notifier.c:271 [inline] blocking_notifier_call_chain kernel/notifier.c:295 [inline] blocking_notifier_call_chain+0x85/0xa0 kernel/notifier.c:292 __inet_del_ifa+0x460/0xf60 net/ipv4/devinet.c:427 inet_del_ifa net/ipv4/devinet.c:464 [inline] inetdev_destroy net/ipv4/devinet.c:317 [inline] inetdev_event+0xae9/0x15b0 net/ipv4/devinet.c:1593 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] rollback_registered_many+0x75c/0xe70 net/core/dev.c:8810 unregister_netdevice_many.part.0+0x16/0x1e0 net/core/dev.c:9966 unregister_netdevice_many net/core/dev.c:9965 [inline] default_device_exit_batch+0x311/0x3d0 net/core/dev.c:10442 ops_exit_list.isra.0+0x103/0x150 net/core/net_namespace.c:175 cleanup_net+0x511/0xa50 net/core/net_namespace.c:589 process_one_work+0x94b/0x1690 kernel/workqueue.c:2266 worker_thread+0x96/0xe20 kernel/workqueue.c:2412 kthread+0x357/0x430 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 device hsr_slave_1 left promiscuous mode @þ (unregistering): Port device team_slave_1 removed @þ (unregistering): Port device team_slave_0 removed bond0 (unregistering): (slave bond_slave_1): Releasing backup interface device bond_slave_1 left promiscuous mode bond0 (unregistering): (slave bond_slave_0): Releasing backup interface device bond_slave_0 left promiscuous mode bond0 (unregistering): Released all slaves