[ 455.544797][T17001] sctp: Hash tables configured (bind 32/56) [ 475.668629][ C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 475.798659][ C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 476.131204][ C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 476.385926][ C3] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 476.653518][ C0] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 476.787245][ C0] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 476.816876][ C0] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 476.952774][ C2] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 477.360167][ C2] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 477.519139][ C0] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 536.876915][ T69] [ 536.877000][ T69] ======================================================== [ 536.877154][ T69] WARNING: possible irq lock inversion dependency detected [ 536.877280][ T69] 7.1.0-rc5-virtme #1 Not tainted [ 536.877364][ T69] -------------------------------------------------------- [ 536.877498][ T69] kworker/u16:1/69 just changed the state of lock: [ 536.877609][ T69] ffffffff98984dd8 (acaddr_hash_lock){+.+.}-{3:3}, at: __ipv6_dev_ac_dec+0x236/0x5d0 [ 536.877770][ T69] but this lock was taken by another, SOFTIRQ-safe lock in the past: [ 536.877898][ T69] (&ndev->lock){++--}-{3:3} [ 536.877901][ T69] [ 536.877901][ T69] [ 536.877901][ T69] and interrupts could create inverse lock ordering between them. [ 536.877901][ T69] [ 536.878211][ T69] [ 536.878211][ T69] other info that might help us debug this: [ 536.878334][ T69] Possible interrupt unsafe locking scenario: [ 536.878334][ T69] [ 536.878464][ T69] CPU0 CPU1 [ 536.878551][ T69] ---- ---- [ 536.878637][ T69] lock(acaddr_hash_lock); [ 536.878726][ T69] local_irq_disable(); [ 536.878833][ T69] lock(&ndev->lock); [ 536.878939][ T69] lock(acaddr_hash_lock); [ 536.879044][ T69] [ 536.879107][ T69] lock(&ndev->lock); [ 536.879173][ T69] [ 536.879173][ T69] *** DEADLOCK *** [ 536.879173][ T69] [ 536.879300][ T69] 4 locks held by kworker/u16:1/69: [ 536.879390][ T69] #0: ff110000019d1d40 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xd55/0x1410 [ 536.879565][ T69] #1: ffa00000004a7d10 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0xdb7/0x1410 [ 536.879711][ T69] #2: ffffffff9887abe8 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xbf/0x890 [ 536.879862][ T69] #3: ffffffff98896a00 (rtnl_mutex){+.+.}-{4:4}, at: default_device_exit_batch+0x9a/0x600 [ 536.880046][ T69] [ 536.880046][ T69] the shortest dependencies between 2nd lock and 1st lock: [ 536.880192][ T69] -> (&ndev->lock){++--}-{3:3} { [ 536.880286][ T69] HARDIRQ-ON-W at: [ 536.880355][ T69] __lock_acquire+0x378/0xc10 [ 536.880465][ T69] lock_acquire.part.0+0xbc/0x260 [ 536.880574][ T69] _raw_write_lock_bh+0x38/0x50 [ 536.880687][ T69] addrconf_permanent_addr+0x108/0x9c0 [ 536.880822][ T69] addrconf_notify+0x151/0xf30 [ 536.880928][ T69] notifier_call_chain+0xb0/0x320 [ 536.881030][ T69] __dev_notify_flags+0xde/0x280 [ 536.881137][ T69] netif_change_flags+0xfe/0x190 [ 536.881246][ T69] do_setlink.isra.0+0x1cc3/0x2750 [ 536.881351][ T69] rtnl_newlink+0x8d1/0xef0 [ 536.881456][ T69] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 536.881560][ T69] netlink_rcv_skb+0x14e/0x3a0 [ 536.881667][ T69] netlink_unicast+0x486/0x750 [ 536.881770][ T69] netlink_sendmsg+0x735/0xc60 [ 536.881879][ T69] ____sys_sendmsg+0x419/0x850 [ 536.881988][ T69] ___sys_sendmsg+0x14e/0x1d0 [ 536.882092][ T69] __sys_sendmsg+0x145/0x1f0 [ 536.882197][ T69] do_syscall_64+0xf3/0x650 [ 536.882301][ T69] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 536.882427][ T69] HARDIRQ-ON-R at: [ 536.882490][ T69] __lock_acquire+0x378/0xc10 [ 536.882609][ T69] lock_acquire.part.0+0xbc/0x260 [ 536.882712][ T69] _raw_read_lock_bh+0x44/0x80 [ 536.882822][ T69] inet6_fill_ifla6_attrs+0x1a72/0x2140 [ 536.882954][ T69] inet6_fill_link_af+0x5c/0xe0 [ 536.883055][ T69] rtnl_fill_ifinfo.isra.0+0x1a45/0x2c20 [ 536.883187][ T69] rtnl_getlink+0x9c9/0xeb0 [ 536.883293][ T69] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 536.883408][ T69] netlink_rcv_skb+0x14e/0x3a0 [ 536.883516][ T69] netlink_unicast+0x486/0x750 [ 536.883627][ T69] netlink_sendmsg+0x735/0xc60 [ 536.883739][ T69] ____sys_sendmsg+0x419/0x850 [ 536.883845][ T69] ___sys_sendmsg+0x14e/0x1d0 [ 536.883964][ T69] __sys_sendmsg+0x145/0x1f0 [ 536.884066][ T69] do_syscall_64+0xf3/0x650 [ 536.884178][ T69] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 536.884311][ T69] IN-SOFTIRQ-W at: [ 536.884377][ T69] __lock_acquire+0x378/0xc10 [ 536.884479][ T69] lock_acquire.part.0+0xbc/0x260 [ 536.884587][ T69] _raw_write_lock+0x33/0x40 [ 536.884692][ T69] addrconf_rs_timer+0xb0/0x770 [ 536.884795][ T69] call_timer_fn+0x163/0x4f0 [ 536.884913][ T69] __run_timers+0x68f/0xab0 [ 536.885016][ T69] run_timer_softirq+0xf0/0x160 [ 536.885124][ T69] handle_softirqs+0x1d8/0x940 [ 536.885238][ T69] __irq_exit_rcu+0x103/0x1c0 [ 536.885341][ T69] irq_exit_rcu+0xe/0x30 [ 536.885446][ T69] sysvec_apic_timer_interrupt+0x9d/0xe0 [ 536.885574][ T69] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 536.885699][ T69] memset+0xf/0x20 [ 536.885787][ T69] kasan_save_stack+0x20/0x50 [ 536.885893][ T69] kasan_save_track+0x14/0x30 [ 536.885995][ T69] __kasan_slab_alloc+0x60/0x70 [ 536.886099][ T69] kmem_cache_alloc_noprof+0x221/0x5f0 [ 536.886231][ T69] __alloc_object+0x30/0x250 [ 536.886345][ T69] __create_object+0x30/0x110 [ 536.886451][ T69] __kmalloc_cache_noprof+0x463/0x620 [ 536.886573][ T69] kmem_cache_free+0x368/0x560 [ 536.886691][ T69] tear_down_vmas+0x178/0x610 [ 536.886795][ T69] exit_mmap+0x486/0x970 [ 536.886902][ T69] mmput+0xa9/0x450 [ 536.886987][ T69] exit_mm+0x1a6/0x290 [ 536.887091][ T69] do_exit+0x57d/0xef0 [ 536.887195][ T69] do_group_exit+0xb8/0x370 [ 536.887298][ T69] __x64_sys_exit_group+0x3c/0x50 [ 536.887405][ T69] x64_sys_call+0x102c/0x1530 [ 536.887516][ T69] do_syscall_64+0xf3/0x650 [ 536.887624][ T69] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 536.887754][ T69] IN-SOFTIRQ-R at: [ 536.887816][ T69] __lock_acquire+0x378/0xc10 [ 536.887923][ T69] lock_acquire.part.0+0xbc/0x260 [ 536.888026][ T69] _raw_read_lock_bh+0x44/0x80 [ 536.888131][ T69] ipv6_get_lladdr+0xa8/0x3f0 [ 536.888240][ T69] addrconf_rs_timer+0x251/0x770 [ 536.888355][ T69] call_timer_fn+0x163/0x4f0 [ 536.888461][ T69] __run_timers+0x68f/0xab0 [ 536.888571][ T69] run_timer_softirq+0xf0/0x160 [ 536.888684][ T69] handle_softirqs+0x1d8/0x940 [ 536.888795][ T69] __irq_exit_rcu+0x103/0x1c0 [ 536.888902][ T69] irq_exit_rcu+0xe/0x30 [ 536.889005][ T69] sysvec_apic_timer_interrupt+0x9d/0xe0 [ 536.889181][ T69] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 536.889311][ T69] memset+0xf/0x20 [ 536.889398][ T69] kasan_save_stack+0x20/0x50 [ 536.889507][ T69] kasan_save_track+0x14/0x30 [ 536.889617][ T69] __kasan_slab_alloc+0x60/0x70 [ 536.889728][ T69] kmem_cache_alloc_noprof+0x221/0x5f0 [ 536.889904][ T69] __alloc_object+0x30/0x250 [ 536.890013][ T69] __create_object+0x30/0x110 [ 536.890118][ T69] __kmalloc_cache_noprof+0x463/0x620 [ 536.890292][ T69] kmem_cache_free+0x368/0x560 [ 536.890404][ T69] tear_down_vmas+0x178/0x610 [ 536.890511][ T69] exit_mmap+0x486/0x970 [ 536.890664][ T69] mmput+0xa9/0x450 [ 536.890759][ T69] exit_mm+0x1a6/0x290 [ 536.890863][ T69] do_exit+0x57d/0xef0 [ 536.891017][ T69] do_group_exit+0xb8/0x370 [ 536.891120][ T69] __x64_sys_exit_group+0x3c/0x50 [ 536.891222][ T69] x64_sys_call+0x102c/0x1530 [ 536.891369][ T69] do_syscall_64+0xf3/0x650 [ 536.891479][ T69] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 536.891604][ T69] INITIAL USE at: [ 536.891667][ T69] __lock_acquire+0x378/0xc10 [ 536.891817][ T69] lock_acquire.part.0+0xbc/0x260 [ 536.891923][ T69] _raw_write_lock_bh+0x38/0x50 [ 536.892029][ T69] addrconf_permanent_addr+0x108/0x9c0 [ 536.892197][ T69] addrconf_notify+0x151/0xf30 [ 536.892301][ T69] notifier_call_chain+0xb0/0x320 [ 536.892453][ T69] __dev_notify_flags+0xde/0x280 [ 536.892606][ T69] netif_change_flags+0xfe/0x190 [ 536.892714][ T69] do_setlink.isra.0+0x1cc3/0x2750 [ 536.892824][ T69] rtnl_newlink+0x8d1/0xef0 [ 536.892979][ T69] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 536.893083][ T69] netlink_rcv_skb+0x14e/0x3a0 [ 536.893188][ T69] netlink_unicast+0x486/0x750 [ 536.893347][ T69] netlink_sendmsg+0x735/0xc60 [ 536.893455][ T69] ____sys_sendmsg+0x419/0x850 [ 536.893558][ T69] ___sys_sendmsg+0x14e/0x1d0 [ 536.893662][ T69] __sys_sendmsg+0x145/0x1f0 [ 536.893816][ T69] do_syscall_64+0xf3/0x650 [ 536.893929][ T69] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 536.894054][ T69] INITIAL READ USE at: [ 536.894193][ T69] __lock_acquire+0x378/0xc10 [ 536.894300][ T69] lock_acquire.part.0+0xbc/0x260 [ 536.894435][ T69] _raw_read_lock_bh+0x44/0x80 [ 536.894587][ T69] inet6_fill_ifla6_attrs+0x1a72/0x2140 [ 536.894715][ T69] inet6_fill_link_af+0x5c/0xe0 [ 536.894820][ T69] rtnl_fill_ifinfo.isra.0+0x1a45/0x2c20 [ 536.894947][ T69] rtnl_getlink+0x9c9/0xeb0 [ 536.895052][ T69] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 536.895156][ T69] netlink_rcv_skb+0x14e/0x3a0 [ 536.895307][ T69] netlink_unicast+0x486/0x750 [ 536.895410][ T69] netlink_sendmsg+0x735/0xc60 [ 536.895518][ T69] ____sys_sendmsg+0x419/0x850 [ 536.895665][ T69] ___sys_sendmsg+0x14e/0x1d0 [ 536.895769][ T69] __sys_sendmsg+0x145/0x1f0 [ 536.895873][ T69] do_syscall_64+0xf3/0x650 [ 536.896025][ T69] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 536.896147][ T69] } [ 536.896189][ T69] ... key at: [] __key.37+0x0/0x40 [ 536.896314][ T69] ... acquired at: [ 536.896376][ T69] __lock_acquire+0x508/0xc10 [ 536.896463][ T69] lock_acquire.part.0+0xbc/0x260 [ 536.896546][ T69] _raw_spin_lock+0x33/0x40 [ 536.896627][ T69] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 536.896730][ T69] __ipv6_dev_ac_inc+0x57e/0x930 [ 536.896818][ T69] addrconf_join_anycast+0x1bc/0x260 [ 536.896908][ T69] dev_forward_change+0x2be/0x850 [ 536.896999][ T69] addrconf_fixup_forwarding+0x2af/0x4d0 [ 536.897103][ T69] addrconf_sysctl_forward+0x209/0x2b0 [ 536.897185][ T69] proc_sys_call_handler+0x31b/0x480 [ 536.897275][ T69] new_sync_write+0x333/0x750 [ 536.897364][ T69] vfs_write+0x6a4/0xc10 [ 536.897453][ T69] ksys_write+0x116/0x250 [ 536.897540][ T69] do_syscall_64+0xf3/0x650 [ 536.897625][ T69] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 536.897730][ T69] [ 536.897774][ T69] -> (acaddr_hash_lock){+.+.}-{3:3} { [ 536.897867][ T69] HARDIRQ-ON-W at: [ 536.897937][ T69] __lock_acquire+0x378/0xc10 [ 536.898043][ T69] lock_acquire.part.0+0xbc/0x260 [ 536.898152][ T69] _raw_spin_lock+0x33/0x40 [ 536.898260][ T69] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 536.898390][ T69] __ipv6_dev_ac_inc+0x57e/0x930 [ 536.898518][ T69] addrconf_join_anycast+0x1bc/0x260 [ 536.898632][ T69] dev_forward_change+0x2be/0x850 [ 536.898744][ T69] addrconf_fixup_forwarding+0x2af/0x4d0 [ 536.898876][ T69] addrconf_sysctl_forward+0x209/0x2b0 [ 536.898988][ T69] proc_sys_call_handler+0x31b/0x480 [ 536.899098][ T69] new_sync_write+0x333/0x750 [ 536.899204][ T69] vfs_write+0x6a4/0xc10 [ 536.899315][ T69] ksys_write+0x116/0x250 [ 536.899422][ T69] do_syscall_64+0xf3/0x650 [ 536.899529][ T69] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 536.899656][ T69] SOFTIRQ-ON-W at: [ 536.899719][ T69] __lock_acquire+0x378/0xc10 [ 536.899982][ T69] lock_acquire.part.0+0xbc/0x260 [ 536.900104][ T69] _raw_spin_lock+0x33/0x40 [ 536.900210][ T69] __ipv6_dev_ac_dec+0x236/0x5d0 [ 536.900316][ T69] addrconf_leave_anycast+0x1bc/0x260 [ 536.900419][ T69] __ipv6_ifa_notify+0x6b4/0xad0 [ 536.900521][ T69] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 536.900630][ T69] addrconf_notify+0x2c8/0xf30 [ 536.900732][ T69] notifier_call_chain+0xb0/0x320 [ 536.900845][ T69] netif_close_many+0x2c9/0x640 [ 536.900965][ T69] unregister_netdevice_many_notify+0x671/0x19a0 [ 536.901095][ T69] default_device_exit_batch+0x38b/0x600 [ 536.901221][ T69] ops_undo_list+0x2ce/0x8f0 [ 536.901325][ T69] cleanup_net+0x431/0x890 [ 536.901432][ T69] process_one_work+0xdf8/0x1410 [ 536.901539][ T69] worker_thread+0x4f1/0xd60 [ 536.901648][ T69] kthread+0x367/0x460 [ 536.901732][ T69] ret_from_fork+0x4a4/0x720 [ 536.901842][ T69] ret_from_fork_asm+0x11/0x20 [ 536.901950][ T69] INITIAL USE at: [ 536.902015][ T69] __lock_acquire+0x378/0xc10 [ 536.902126][ T69] lock_acquire.part.0+0xbc/0x260 [ 536.902230][ T69] _raw_spin_lock+0x33/0x40 [ 536.902332][ T69] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 536.902455][ T69] __ipv6_dev_ac_inc+0x57e/0x930 [ 536.902558][ T69] addrconf_join_anycast+0x1bc/0x260 [ 536.902664][ T69] dev_forward_change+0x2be/0x850 [ 536.902772][ T69] addrconf_fixup_forwarding+0x2af/0x4d0 [ 536.902896][ T69] addrconf_sysctl_forward+0x209/0x2b0 [ 536.903000][ T69] proc_sys_call_handler+0x31b/0x480 [ 536.903196][ T69] new_sync_write+0x333/0x750 [ 536.903302][ T69] vfs_write+0x6a4/0xc10 [ 536.903410][ T69] ksys_write+0x116/0x250 [ 536.903519][ T69] do_syscall_64+0xf3/0x650 [ 536.903623][ T69] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 536.903756][ T69] } [ 536.903800][ T69] ... key at: [] acaddr_hash_lock+0x18/0x45a0 [ 536.903936][ T69] ... acquired at: [ 536.904004][ T69] mark_lock+0x1d7/0xa00 [ 536.904091][ T69] mark_usage+0x105/0x170 [ 536.904174][ T69] __lock_acquire+0x378/0xc10 [ 536.904333][ T69] lock_acquire.part.0+0xbc/0x260 [ 536.904416][ T69] _raw_spin_lock+0x33/0x40 [ 536.904500][ T69] __ipv6_dev_ac_dec+0x236/0x5d0 [ 536.904584][ T69] addrconf_leave_anycast+0x1bc/0x260 [ 536.904668][ T69] __ipv6_ifa_notify+0x6b4/0xad0 [ 536.904756][ T69] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 536.904837][ T69] addrconf_notify+0x2c8/0xf30 [ 536.904923][ T69] notifier_call_chain+0xb0/0x320 [ 536.905006][ T69] netif_close_many+0x2c9/0x640 [ 536.905089][ T69] unregister_netdevice_many_notify+0x671/0x19a0 [ 536.905193][ T69] default_device_exit_batch+0x38b/0x600 [ 536.905342][ T69] ops_undo_list+0x2ce/0x8f0 [ 536.905426][ T69] cleanup_net+0x431/0x890 [ 536.905510][ T69] process_one_work+0xdf8/0x1410 [ 536.905596][ T69] worker_thread+0x4f1/0xd60 [ 536.905677][ T69] kthread+0x367/0x460 [ 536.905739][ T69] ret_from_fork+0x4a4/0x720 [ 536.905822][ T69] ret_from_fork_asm+0x11/0x20 [ 536.905915][ T69] [ 536.905960][ T69] [ 536.905960][ T69] stack backtrace: [ 536.906073][ T69] CPU: 1 UID: 0 PID: 69 Comm: kworker/u16:1 Not tainted 7.1.0-rc5-virtme #1 PREEMPT(full) [ 536.906076][ T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 536.906079][ T69] Workqueue: netns cleanup_net [ 536.906082][ T69] Call Trace: [ 536.906084][ T69] [ 536.906085][ T69] dump_stack_lvl+0x6f/0xa0 [ 536.906089][ T69] print_irq_inversion_bug.part.0.cold+0xe6/0x143 [ 536.906092][ T69] mark_lock_irq+0x989/0x9c0 [ 536.906095][ T69] mark_lock+0x1d7/0xa00 [ 536.906097][ T69] mark_usage+0x105/0x170 [ 536.906098][ T69] __lock_acquire+0x378/0xc10 [ 536.906100][ T69] lock_acquire.part.0+0xbc/0x260 [ 536.906101][ T69] ? __ipv6_dev_ac_dec+0x236/0x5d0 [ 536.906103][ T69] ? rcu_is_watching+0x15/0xd0 [ 536.906106][ T69] ? do_raw_read_unlock+0x70/0x70 [ 536.906108][ T69] ? lock_acquire+0x134/0x160 [ 536.906110][ T69] _raw_spin_lock+0x33/0x40 [ 536.906111][ T69] ? __ipv6_dev_ac_dec+0x236/0x5d0 [ 536.906113][ T69] __ipv6_dev_ac_dec+0x236/0x5d0 [ 536.906115][ T69] addrconf_leave_anycast+0x1bc/0x260 [ 536.906117][ T69] ? inet6_dump_ifinfo+0x6e0/0x6e0 [ 536.906119][ T69] ? __ipv6_isatap_ifid+0x210/0x210 [ 536.906121][ T69] ? nlmsg_notify+0x62/0x250 [ 536.906123][ T69] __ipv6_ifa_notify+0x6b4/0xad0 [ 536.906125][ T69] ? cleanup_prefix_route+0x550/0x550 [ 536.906127][ T69] ? find_held_lock+0x2b/0x80 [ 536.906130][ T69] ? __lock_release.isra.0+0x6b/0x1a0 [ 536.906131][ T69] ? __rwlock_init+0x150/0x150 [ 536.906133][ T69] ? mark_held_locks+0x40/0x70 [ 536.906135][ T69] ? addrconf_ifdown.isra.0+0xa70/0x15f0 [ 536.906137][ T69] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 536.906139][ T69] ? __timer_delete_sync+0xdb/0x130 [ 536.906142][ T69] ? addrconf_dad_run+0x1b0/0x1b0 [ 536.906144][ T69] ? neigh_flush_one+0x580/0x580 [ 536.906147][ T69] addrconf_notify+0x2c8/0xf30 [ 536.906148][ T69] ? fib_netdev_event+0x1a9/0x5d0 [ 536.906151][ T69] notifier_call_chain+0xb0/0x320 [ 536.906153][ T69] netif_close_many+0x2c9/0x640 [ 536.906155][ T69] ? __dev_close_many+0x530/0x530 [ 536.906157][ T69] ? netif_close_many_and_unlock+0x22/0x2c0 [ 536.906158][ T69] ? lockdep_hardirqs_on+0x8c/0x130 [ 536.906160][ T69] ? kasan_quarantine_put+0x13e/0x2b0 [ 536.906162][ T69] unregister_netdevice_many_notify+0x671/0x19a0 [ 536.906164][ T69] ? mutex_is_locked+0x1c/0x50 [ 536.906166][ T69] ? unregister_netdevice_queued+0x80/0x80 [ 536.906168][ T69] ? mutex_is_locked+0x1c/0x50 [ 536.906170][ T69] ? rtnl_is_locked+0x15/0x20 [ 536.906171][ T69] ? unregister_netdevice_queue+0x6a/0x470 [ 536.906173][ T69] ? unregister_netdevice_many+0x20/0x20 [ 536.906176][ T69] default_device_exit_batch+0x38b/0x600 [ 536.906178][ T69] ? generic_xdp_install+0x400/0x400 [ 536.906180][ T69] ? ipmr_free_table+0x12e/0x2a0 [ 536.906182][ T69] ? unregister_netdev+0x60/0x60 [ 536.906184][ T69] ? rtnl_is_locked+0x15/0x20 [ 536.906185][ T69] ? nexthop_net_exit_rtnl+0x1f/0x260 [ 536.906188][ T69] ops_undo_list+0x2ce/0x8f0 [ 536.906190][ T69] ? lockdep_hardirqs_on+0x8c/0x130 [ 536.906191][ T69] ? rtnl_net_dumpid_one+0x2d0/0x2d0 [ 536.906193][ T69] ? __lock_release.isra.0+0x6b/0x1a0 [ 536.906194][ T69] ? idr_destroy+0x121/0x250 [ 536.906197][ T69] cleanup_net+0x431/0x890 [ 536.906199][ T69] ? net_passive_dec+0x1c0/0x1c0 [ 536.906200][ T69] ? process_one_work+0xdb7/0x1410 [ 536.906202][ T69] ? lock_acquire+0x134/0x160 [ 536.906203][ T69] ? rcu_is_watching+0x15/0xd0 [ 536.906205][ T69] process_one_work+0xdf8/0x1410 [ 536.906208][ T69] ? pwq_dec_nr_in_flight+0x710/0x710 [ 536.906210][ T69] ? lock_acquire.part.0+0xbc/0x260 [ 536.906212][ T69] worker_thread+0x4f1/0xd60 [ 536.906214][ T69] ? rescuer_thread+0x1320/0x1320 [ 536.906216][ T69] ? __kthread_parkme+0xbd/0x210 [ 536.906218][ T69] ? rescuer_thread+0x1320/0x1320 [ 536.906220][ T69] kthread+0x367/0x460 [ 536.906221][ T69] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 536.906224][ T69] ? kthread_affine_node+0x330/0x330 [ 536.906226][ T69] ret_from_fork+0x4a4/0x720 [ 536.906228][ T69] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 536.906229][ T69] ? __switch_to+0x5a3/0xe00 [ 536.906232][ T69] ? kthread_affine_node+0x330/0x330 [ 536.906233][ T69] ret_from_fork_asm+0x11/0x20 [ 536.906236][ T69]