[ 78.766888][ T627] sctp: Hash tables configured (bind 32/56) [ 79.700586][ T635] ip (635) used greatest stack depth: 24032 bytes left [ 83.805109][ T665] [ 83.805302][ T665] ===================================================== [ 83.805499][ T665] WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected [ 83.805722][ T665] 6.9.0-rc1-virtme #1 Not tainted [ 83.805869][ T665] ----------------------------------------------------- [ 83.806061][ T665] ip/665 [HC0[0]:SC0[2]:HE1:SE0] is trying to acquire: [ 83.806250][ T665] ffff888006b6cee8 (&p->alloc_lock){+.+.}-{2:2}, at: __get_task_comm+0x27/0x70 [ 83.806537][ T665] [ 83.806537][ T665] and this task is already holding: [ 83.806761][ T665] ffff88800596bd80 (&ndev->lock){++--}-{2:2}, at: addrconf_permanent_addr+0x6e/0x670 [ 83.807050][ T665] which would create a new lock dependency: [ 83.807238][ T665] (&ndev->lock){++--}-{2:2} -> (&p->alloc_lock){+.+.}-{2:2} [ 83.807471][ T665] [ 83.807471][ T665] but this new dependency connects a SOFTIRQ-irq-safe lock: [ 83.807733][ T665] (&ndev->lock){++--}-{2:2} [ 83.807737][ T665] [ 83.807737][ T665] ... which became SOFTIRQ-irq-safe at: [ 83.808106][ T665] __lock_acquire+0x797/0x1570 [ 83.808272][ T665] lock_acquire.part.0+0xeb/0x330 [ 83.808420][ T665] _raw_write_lock+0x30/0x40 [ 83.808584][ T665] addrconf_rs_timer+0xa9/0x730 [ 83.808735][ T665] call_timer_fn+0x13b/0x230 [ 83.808888][ T665] __run_timers+0x545/0x810 [ 83.809037][ T665] timer_expire_remote+0x9b/0xe0 [ 83.809186][ T665] tmigr_handle_remote_cpu+0x270/0x430 [ 83.809338][ T665] tmigr_handle_remote_up+0x19f/0x2e0 [ 83.809484][ T665] tmigr_handle_remote+0x21d/0x3a0 [ 83.809644][ T665] __do_softirq+0x1f8/0x5df [ 83.809797][ T665] irq_exit_rcu+0x97/0xc0 [ 83.809947][ T665] sysvec_apic_timer_interrupt+0x75/0x80 [ 83.810099][ T665] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 83.810283][ T665] default_idle+0xf/0x20 [ 83.810395][ T665] default_idle_call+0x6d/0xb0 [ 83.810547][ T665] cpuidle_idle_call+0x1f4/0x280 [ 83.810696][ T665] do_idle+0xf9/0x160 [ 83.810810][ T665] cpu_startup_entry+0x54/0x60 [ 83.810959][ T665] start_secondary+0x21c/0x2b0 [ 83.811117][ T665] common_startup_64+0x12c/0x138 [ 83.811270][ T665] [ 83.811270][ T665] to a SOFTIRQ-irq-unsafe lock: [ 83.811453][ T665] (&p->alloc_lock){+.+.}-{2:2} [ 83.811457][ T665] [ 83.811457][ T665] ... which became SOFTIRQ-irq-unsafe at: [ 83.811824][ T665] ... [ 83.811825][ T665] __lock_acquire+0x797/0x1570 [ 83.812059][ T665] lock_acquire.part.0+0xeb/0x330 [ 83.812211][ T665] _raw_spin_lock+0x30/0x40 [ 83.812369][ T665] set_mems_allowed+0x1d/0x210 [ 83.812521][ T665] kernel_init_freeable+0x72/0x310 [ 83.812669][ T665] kernel_init+0x20/0x200 [ 83.812819][ T665] ret_from_fork+0x31/0x70 [ 83.812977][ T665] ret_from_fork_asm+0x1a/0x30 [ 83.813125][ T665] [ 83.813125][ T665] other info that might help us debug this: [ 83.813125][ T665] [ 83.813417][ T665] Possible interrupt unsafe locking scenario: [ 83.813417][ T665] [ 83.813635][ T665] CPU0 CPU1 [ 83.813784][ T665] ---- ---- [ 83.813929][ T665] lock(&p->alloc_lock); [ 83.814044][ T665] local_irq_disable(); [ 83.814227][ T665] lock(&ndev->lock); [ 83.814427][ T665] lock(&p->alloc_lock); [ 83.814610][ T665] [ 83.814721][ T665] lock(&ndev->lock); [ 83.814833][ T665] [ 83.814833][ T665] *** DEADLOCK *** [ 83.814833][ T665] [ 83.815055][ T665] 2 locks held by ip/665: [ 83.815165][ T665] #0: ffffffff8dbb7208 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x2af/0xbf0 [ 83.815437][ T665] #1: ffff88800596bd80 (&ndev->lock){++--}-{2:2}, at: addrconf_permanent_addr+0x6e/0x670 [ 83.815702][ T665] [ 83.815702][ T665] the dependencies between SOFTIRQ-irq-safe lock and the holding lock: [ 83.815995][ T665] -> (&ndev->lock){++--}-{2:2} { [ 83.816147][ T665] HARDIRQ-ON-W at: [ 83.816262][ T665] __lock_acquire+0x797/0x1570 [ 83.816451][ T665] lock_acquire.part.0+0xeb/0x330 [ 83.816641][ T665] _raw_write_lock_bh+0x38/0x50 [ 83.816825][ T665] addrconf_permanent_addr+0x6e/0x670 [ 83.817017][ T665] addrconf_notify+0x749/0xd60 [ 83.817201][ T665] notifier_call_chain+0xcd/0x150 [ 83.817387][ T665] __dev_notify_flags+0xe6/0x250 [ 83.817579][ T665] dev_change_flags+0xec/0x160 [ 83.817768][ T665] do_setlink+0x7d6/0x21e0 [ 83.817953][ T665] __rtnl_newlink+0xaa7/0xd80 [ 83.818138][ T665] rtnl_newlink+0x63/0xa0 [ 83.818325][ T665] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 83.818509][ T665] netlink_rcv_skb+0x130/0x360 [ 83.818697][ T665] netlink_unicast+0x449/0x710 [ 83.818886][ T665] netlink_sendmsg+0x723/0xbe0 [ 83.819073][ T665] ____sys_sendmsg+0x7b2/0xa10 [ 83.819260][ T665] ___sys_sendmsg+0xee/0x170 [ 83.819446][ T665] __sys_sendmsg+0xcd/0x170 [ 83.819633][ T665] do_syscall_64+0xc6/0x1e0 [ 83.819818][ T665] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 83.820039][ T665] HARDIRQ-ON-R at: [ 83.820153][ T665] __lock_acquire+0x797/0x1570 [ 83.820341][ T665] lock_acquire.part.0+0xeb/0x330 [ 83.820526][ T665] _raw_read_lock_bh+0x44/0x80 [ 83.820712][ T665] inet6_fill_ifla6_attrs+0x516/0x740 [ 83.820899][ T665] inet6_fill_link_af+0x5e/0xe0 [ 83.821083][ T665] rtnl_fill_ifinfo+0x1615/0x2a90 [ 83.821266][ T665] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 83.821458][ T665] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 83.821682][ T665] rtmsg_ifinfo+0x5b/0xa0 [ 83.821864][ T665] register_netdevice+0x1177/0x1690 [ 83.822148][ T665] register_netdev+0x20/0x40 [ 83.822331][ T665] vti6_init_net+0x25d/0x380 [ 83.822516][ T665] ops_init+0x9b/0x560 [ 83.822671][ T665] register_pernet_operations+0x2db/0x710 [ 83.822994][ T665] register_pernet_device+0x2a/0x60 [ 83.823177][ T665] vti6_tunnel_init+0x18/0x110 [ 83.823363][ T665] do_one_initcall+0x8d/0x1e0 [ 83.823641][ T665] do_initcalls+0x1b2/0x3e0 [ 83.823828][ T665] kernel_init_freeable+0x232/0x310 [ 83.824017][ T665] kernel_init+0x20/0x200 [ 83.824200][ T665] ret_from_fork+0x31/0x70 [ 83.824478][ T665] ret_from_fork_asm+0x1a/0x30 [ 83.824676][ T665] IN-SOFTIRQ-W at: [ 83.824789][ T665] __lock_acquire+0x797/0x1570 [ 83.825065][ T665] lock_acquire.part.0+0xeb/0x330 [ 83.825249][ T665] _raw_write_lock+0x30/0x40 [ 83.825438][ T665] addrconf_rs_timer+0xa9/0x730 [ 83.825621][ T665] call_timer_fn+0x13b/0x230 [ 83.825941][ T665] __run_timers+0x545/0x810 [ 83.826124][ T665] timer_expire_remote+0x9b/0xe0 [ 83.826307][ T665] tmigr_handle_remote_cpu+0x270/0x430 [ 83.826597][ T665] tmigr_handle_remote_up+0x19f/0x2e0 [ 83.826783][ T665] tmigr_handle_remote+0x21d/0x3a0 [ 83.826969][ T665] __do_softirq+0x1f8/0x5df [ 83.827154][ T665] irq_exit_rcu+0x97/0xc0 [ 83.827430][ T665] sysvec_apic_timer_interrupt+0x75/0x80 [ 83.827658][ T665] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 83.827877][ T665] default_idle+0xf/0x20 [ 83.828154][ T665] default_idle_call+0x6d/0xb0 [ 83.828341][ T665] cpuidle_idle_call+0x1f4/0x280 [ 83.828525][ T665] do_idle+0xf9/0x160 [ 83.828765][ T665] cpu_startup_entry+0x54/0x60 [ 83.828948][ T665] start_secondary+0x21c/0x2b0 [ 83.829135][ T665] common_startup_64+0x12c/0x138 [ 83.829317][ T665] IN-SOFTIRQ-R at: [ 83.829524][ T665] __lock_acquire+0x797/0x1570 [ 83.829708][ T665] lock_acquire.part.0+0xeb/0x330 [ 83.829893][ T665] _raw_read_lock_bh+0x44/0x80 [ 83.830169][ T665] ipv6_get_lladdr+0xa9/0x3e0 [ 83.830355][ T665] addrconf_rs_timer+0x24a/0x730 [ 83.830541][ T665] call_timer_fn+0x13b/0x230 [ 83.830724][ T665] __run_timers+0x545/0x810 [ 83.831005][ T665] timer_expire_remote+0x9b/0xe0 [ 83.831189][ T665] tmigr_handle_remote_cpu+0x270/0x430 [ 83.831375][ T665] tmigr_handle_remote_up+0x19f/0x2e0 [ 83.831652][ T665] tmigr_handle_remote+0x21d/0x3a0 [ 83.831835][ T665] __do_softirq+0x1f8/0x5df [ 83.832018][ T665] irq_exit_rcu+0x97/0xc0 [ 83.832206][ T665] sysvec_apic_timer_interrupt+0x75/0x80 [ 83.832524][ T665] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 83.832743][ T665] default_idle+0xf/0x20 [ 83.832934][ T665] default_idle_call+0x6d/0xb0 [ 83.833211][ T665] cpuidle_idle_call+0x1f4/0x280 [ 83.833397][ T665] do_idle+0xf9/0x160 [ 83.833549][ T665] cpu_startup_entry+0x54/0x60 [ 83.833919][ T665] start_secondary+0x21c/0x2b0 [ 83.834104][ T665] common_startup_64+0x12c/0x138 [ 83.834288][ T665] INITIAL USE at: [ 83.834398][ T665] __lock_acquire+0x797/0x1570 [ 83.834681][ T665] lock_acquire.part.0+0xeb/0x330 [ 83.834865][ T665] _raw_write_lock_bh+0x38/0x50 [ 83.835054][ T665] addrconf_permanent_addr+0x6e/0x670 [ 83.835330][ T665] addrconf_notify+0x749/0xd60 [ 83.835519][ T665] notifier_call_chain+0xcd/0x150 [ 83.835705][ T665] __dev_notify_flags+0xe6/0x250 [ 83.835891][ T665] dev_change_flags+0xec/0x160 [ 83.836168][ T665] do_setlink+0x7d6/0x21e0 [ 83.836357][ T665] __rtnl_newlink+0xaa7/0xd80 [ 83.836540][ T665] rtnl_newlink+0x63/0xa0 [ 83.836819][ T665] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 83.837001][ T665] netlink_rcv_skb+0x130/0x360 [ 83.837186][ T665] netlink_unicast+0x449/0x710 [ 83.837370][ T665] netlink_sendmsg+0x723/0xbe0 [ 83.837645][ T665] ____sys_sendmsg+0x7b2/0xa10 [ 83.837835][ T665] ___sys_sendmsg+0xee/0x170 [ 83.838019][ T665] __sys_sendmsg+0xcd/0x170 [ 83.838294][ T665] do_syscall_64+0xc6/0x1e0 [ 83.838478][ T665] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 83.838697][ T665] INITIAL READ USE at: [ 83.838809][ T665] __lock_acquire+0x797/0x1570 [ 83.839087][ T665] lock_acquire.part.0+0xeb/0x330 [ 83.839276][ T665] _raw_read_lock_bh+0x44/0x80 [ 83.839460][ T665] inet6_fill_ifla6_attrs+0x516/0x740 [ 83.839773][ T665] inet6_fill_link_af+0x5e/0xe0 [ 83.839958][ T665] rtnl_fill_ifinfo+0x1615/0x2a90 [ 83.840141][ T665] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 83.840459][ T665] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 83.840678][ T665] rtmsg_ifinfo+0x5b/0xa0 [ 83.840864][ T665] register_netdevice+0x1177/0x1690 [ 83.841175][ T665] register_netdev+0x20/0x40 [ 83.841357][ T665] vti6_init_net+0x25d/0x380 [ 83.841542][ T665] ops_init+0x9b/0x560 [ 83.841827][ T665] register_pernet_operations+0x2db/0x710 [ 83.842048][ T665] register_pernet_device+0x2a/0x60 [ 83.842265][ T665] vti6_tunnel_init+0x18/0x110 [ 83.842541][ T665] do_one_initcall+0x8d/0x1e0 [ 83.842725][ T665] do_initcalls+0x1b2/0x3e0 [ 83.842913][ T665] kernel_init_freeable+0x232/0x310 [ 83.843139][ T665] kernel_init+0x20/0x200 [ 83.843416][ T665] ret_from_fork+0x31/0x70 [ 83.843601][ T665] ret_from_fork_asm+0x1a/0x30 [ 83.843783][ T665] } [ 83.843859][ T665] ... key at: [] __key.37+0x0/0x40 [ 83.844179][ T665] [ 83.844179][ T665] the dependencies between the lock to be acquired [ 83.844181][ T665] and SOFTIRQ-irq-unsafe lock: [ 83.844580][ T665] -> (&p->alloc_lock){+.+.}-{2:2} { [ 83.844826][ T665] HARDIRQ-ON-W at: [ 83.844941][ T665] __lock_acquire+0x797/0x1570 [ 83.845132][ T665] lock_acquire.part.0+0xeb/0x330 [ 83.845316][ T665] _raw_spin_lock+0x30/0x40 [ 83.845695][ T665] set_mems_allowed+0x1d/0x210 [ 83.845884][ T665] kernel_init_freeable+0x72/0x310 [ 83.846068][ T665] kernel_init+0x20/0x200 [ 83.846351][ T665] ret_from_fork+0x31/0x70 [ 83.846536][ T665] ret_from_fork_asm+0x1a/0x30 [ 83.846720][ T665] SOFTIRQ-ON-W at: [ 83.846831][ T665] __lock_acquire+0x797/0x1570 [ 83.847108][ T665] lock_acquire.part.0+0xeb/0x330 [ 83.847297][ T665] _raw_spin_lock+0x30/0x40 [ 83.847486][ T665] set_mems_allowed+0x1d/0x210 [ 83.847770][ T665] kernel_init_freeable+0x72/0x310 [ 83.847954][ T665] kernel_init+0x20/0x200 [ 83.848139][ T665] ret_from_fork+0x31/0x70 [ 83.848324][ T665] ret_from_fork_asm+0x1a/0x30 [ 83.848605][ T665] INITIAL USE at: [ 83.848720][ T665] __lock_acquire+0x797/0x1570 [ 83.848906][ T665] lock_acquire.part.0+0xeb/0x330 [ 83.849188][ T665] _raw_spin_lock+0x30/0x40 [ 83.849373][ T665] set_mems_allowed+0x1d/0x210 [ 83.849559][ T665] kernel_init_freeable+0x72/0x310 [ 83.849744][ T665] kernel_init+0x20/0x200 [ 83.850025][ T665] ret_from_fork+0x31/0x70 [ 83.850213][ T665] ret_from_fork_asm+0x1a/0x30 [ 83.850398][ T665] } [ 83.850475][ T665] ... key at: [] __key.388+0x0/0x40 [ 83.850805][ T665] ... acquired at: [ 83.850915][ T665] check_prev_add+0x194/0xce0 [ 83.851066][ T665] validate_chain+0x71d/0x9b0 [ 83.851213][ T665] __lock_acquire+0xaf0/0x1570 [ 83.851450][ T665] lock_acquire.part.0+0xeb/0x330 [ 83.851601][ T665] _raw_spin_lock+0x30/0x40 [ 83.851750][ T665] __get_task_comm+0x27/0x70 [ 83.851898][ T665] ref_tracker_alloc+0x2ee/0x490 [ 83.852140][ T665] netdev_get_by_index+0x5e/0x80 [ 83.852286][ T665] fib6_nh_init+0x3d8/0x1580 [ 83.852434][ T665] ip6_route_info_create+0xf18/0x17d0 [ 83.852580][ T665] ip6_route_add+0x1c/0x140 [ 83.852818][ T665] addrconf_prefix_route+0x2a6/0x430 [ 83.852976][ T665] addrconf_permanent_addr+0x32f/0x670 [ 83.853124][ T665] addrconf_notify+0x749/0xd60 [ 83.853270][ T665] notifier_call_chain+0xcd/0x150 [ 83.853418][ T665] __dev_notify_flags+0xe6/0x250 [ 83.853659][ T665] dev_change_flags+0xec/0x160 [ 83.853808][ T665] do_setlink+0x7d6/0x21e0 [ 83.853953][ T665] __rtnl_newlink+0xaa7/0xd80 [ 83.854104][ T665] rtnl_newlink+0x63/0xa0 [ 83.854347][ T665] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 83.854494][ T665] netlink_rcv_skb+0x130/0x360 [ 83.854641][ T665] netlink_unicast+0x449/0x710 [ 83.854787][ T665] netlink_sendmsg+0x723/0xbe0 [ 83.855029][ T665] ____sys_sendmsg+0x7b2/0xa10 [ 83.855176][ T665] ___sys_sendmsg+0xee/0x170 [ 83.855322][ T665] __sys_sendmsg+0xcd/0x170 [ 83.855468][ T665] do_syscall_64+0xc6/0x1e0 [ 83.855707][ T665] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 83.855895][ T665] [ 83.855973][ T665] [ 83.855973][ T665] stack backtrace: [ 83.856152][ T665] CPU: 2 PID: 665 Comm: ip Not tainted 6.9.0-rc1-virtme #1 [ 83.856469][ T665] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 83.856793][ T665] Call Trace: [ 83.856910][ T665] [ 83.856991][ T665] dump_stack_lvl+0x82/0xd0 [ 83.857334][ T665] print_bad_irq_dependency+0x957/0xd40 [ 83.857482][ T665] ? hlock_class+0x4e/0x130 [ 83.857630][ T665] ? __pfx_print_bad_irq_dependency+0x10/0x10 [ 83.857812][ T665] ? __pfx_usage_skip+0x10/0x10 [ 83.858049][ T665] ? __bfs+0x246/0x650 [ 83.858161][ T665] ? __pfx_usage_match+0x10/0x10 [ 83.858308][ T665] check_irq_usage+0x596/0x850 [ 83.858456][ T665] ? __pfx_check_irq_usage+0x10/0x10 [ 83.858699][ T665] ? __bfs+0x246/0x650 [ 83.858810][ T665] ? __pfx_hlock_conflict+0x10/0x10 [ 83.858958][ T665] ? check_path.constprop.0+0x24/0x50 [ 83.859104][ T665] ? check_noncircular+0x14c/0x3e0 [ 83.859254][ T665] ? __pfx_check_noncircular+0x10/0x10 [ 83.859496][ T665] ? check_prev_add+0x194/0xce0 [ 83.859642][ T665] check_prev_add+0x194/0xce0 [ 83.859788][ T665] ? validate_chain+0x130/0x9b0 [ 83.859941][ T665] validate_chain+0x71d/0x9b0 [ 83.860182][ T665] ? mark_lock+0x38/0x3e0 [ 83.860301][ T665] ? __pfx_validate_chain+0x10/0x10 [ 83.860447][ T665] ? hlock_class+0x4e/0x130 [ 83.860593][ T665] ? mark_lock+0x38/0x3e0 [ 83.860705][ T665] __lock_acquire+0xaf0/0x1570 [ 83.860947][ T665] lock_acquire.part.0+0xeb/0x330 [ 83.861094][ T665] ? __get_task_comm+0x27/0x70 [ 83.861240][ T665] ? mark_lock+0x38/0x3e0 [ 83.861359][ T665] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 83.861597][ T665] ? trace_lock_acquire+0x135/0x1c0 [ 83.861744][ T665] ? __get_task_comm+0x27/0x70 [ 83.861889][ T665] ? lock_acquire+0x32/0xc0 [ 83.862041][ T665] ? __get_task_comm+0x27/0x70 [ 83.862188][ T665] _raw_spin_lock+0x30/0x40 [ 83.862431][ T665] ? __get_task_comm+0x27/0x70 [ 83.862577][ T665] __get_task_comm+0x27/0x70 [ 83.862724][ T665] ref_tracker_alloc+0x2ee/0x490 [ 83.862880][ T665] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 83.863120][ T665] ? dev_get_by_index+0x177/0x270 [ 83.863265][ T665] ? netdev_get_by_index+0x5e/0x80 [ 83.863410][ T665] ? fib6_nh_init+0x3d8/0x1580 [ 83.863557][ T665] ? ip6_route_info_create+0xf18/0x17d0 [ 83.863795][ T665] ? ip6_route_add+0x1c/0x140 [ 83.863941][ T665] ? addrconf_prefix_route+0x2a6/0x430 [ 83.864086][ T665] ? addrconf_permanent_addr+0x32f/0x670 [ 83.864235][ T665] ? addrconf_notify+0x749/0xd60 [ 83.864470][ T665] ? notifier_call_chain+0xcd/0x150 [ 83.864619][ T665] ? __dev_notify_flags+0xe6/0x250 [ 83.864764][ T665] ? dev_change_flags+0xec/0x160 [ 83.864908][ T665] ? do_setlink+0x7d6/0x21e0 [ 83.865053][ T665] ? __rtnl_newlink+0xaa7/0xd80 [ 83.865290][ T665] ? rtnl_newlink+0x63/0xa0 [ 83.865435][ T665] ? rtnetlink_rcv_msg+0x2fb/0xbf0 [ 83.865587][ T665] ? netlink_rcv_skb+0x130/0x360 [ 83.865733][ T665] ? netlink_unicast+0x449/0x710 [ 83.865970][ T665] ? dev_get_by_index+0x177/0x270 [ 83.866117][ T665] netdev_get_by_index+0x5e/0x80 [ 83.866263][ T665] fib6_nh_init+0x3d8/0x1580 [ 83.866408][ T665] ? lockdep_hardirqs_on_prepare.part.0+0x14f/0x370 [ 83.866686][ T665] ? __pfx_fib6_nh_init+0x10/0x10 [ 83.866831][ T665] ? kasan_save_track+0x14/0x30 [ 83.866980][ T665] ? __kasan_kmalloc+0x7f/0x90 [ 83.867131][ T665] ? __kmalloc+0x1d7/0x3c0 [ 83.867374][ T665] ? fib6_get_table+0x116/0x290 [ 83.867522][ T665] ip6_route_info_create+0xf18/0x17d0 [ 83.867674][ T665] ? __pfx_ip6_route_info_create+0x10/0x10 [ 83.867855][ T665] ? __pfx_validate_chain+0x10/0x10 [ 83.868092][ T665] ip6_route_add+0x1c/0x140 [ 83.868239][ T665] addrconf_prefix_route+0x2a6/0x430 [ 83.868384][ T665] ? __pfx_addrconf_prefix_route+0x10/0x10 [ 83.868575][ T665] ? do_raw_write_lock+0x122/0x3b0 [ 83.868916][ T665] ? __pfx_do_raw_write_lock+0x10/0x10 [ 83.869061][ T665] ? lock_acquire+0x32/0xc0 [ 83.869207][ T665] ? addrconf_permanent_addr+0x6e/0x670 [ 83.869355][ T665] addrconf_permanent_addr+0x32f/0x670 [ 83.869595][ T665] addrconf_notify+0x749/0xd60 [ 83.869744][ T665] notifier_call_chain+0xcd/0x150 [ 83.869899][ T665] __dev_notify_flags+0xe6/0x250 [ 83.870045][ T665] ? __pfx___dev_notify_flags+0x10/0x10 [ 83.870191][ T665] ? __dev_change_flags+0x469/0x6c0 [ 83.870430][ T665] ? __pfx___dev_change_flags+0x10/0x10 [ 83.870575][ T665] ? find_held_lock+0x2c/0x110 [ 83.870722][ T665] dev_change_flags+0xec/0x160 [ 83.870868][ T665] do_setlink+0x7d6/0x21e0 [ 83.871107][ T665] ? is_bpf_text_address+0x6c/0x120 [ 83.871258][ T665] ? __pfx_do_setlink+0x10/0x10 [ 83.871403][ T665] ? is_bpf_text_address+0x71/0x120 [ 83.871548][ T665] ? kernel_text_address+0xce/0xe0 [ 83.871788][ T665] ? __kernel_text_address+0x12/0x40 [ 83.871934][ T665] ? unwind_get_return_address+0x5e/0xa0 [ 83.872083][ T665] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 83.872265][ T665] ? arch_stack_walk+0xa2/0xf0 [ 83.872507][ T665] ? stack_trace_save+0x94/0xd0 [ 83.872658][ T665] ? __pfx_stack_trace_save+0x10/0x10 [ 83.872804][ T665] ? stack_depot_save_flags+0x45/0x530 [ 83.872970][ T665] ? mark_lock+0x38/0x3e0 [ 83.873084][ T665] ? kasan_save_stack+0x34/0x50 [ 83.873321][ T665] ? kasan_save_stack+0x24/0x50 [ 83.873468][ T665] ? kasan_save_track+0x14/0x30 [ 83.873613][ T665] ? __kasan_kmalloc+0x7f/0x90 [ 83.873758][ T665] ? rtnl_newlink+0x4a/0xa0 [ 83.873994][ T665] ? rtnetlink_rcv_msg+0x2fb/0xbf0 [ 83.874146][ T665] ? netlink_rcv_skb+0x130/0x360 [ 83.874292][ T665] ? validate_nla+0x1d30/0x1d30 [ 83.874441][ T665] ? netlink_sendmsg+0x723/0xbe0 [ 83.874680][ T665] ? ____sys_sendmsg+0x7b2/0xa10 [ 83.874825][ T665] ? ___sys_sendmsg+0xee/0x170 [ 83.874973][ T665] __rtnl_newlink+0xaa7/0xd80 [ 83.875120][ T665] ? hlock_class+0x4e/0x130 [ 83.875360][ T665] ? __pfx___rtnl_newlink+0x10/0x10 [ 83.875513][ T665] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 83.875699][ T665] ? __create_object+0x5e/0xb0 [ 83.875846][ T665] ? trace_kmalloc+0x2a/0xe0 [ 83.876086][ T665] rtnl_newlink+0x63/0xa0 [ 83.876197][ T665] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 83.876347][ T665] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 83.876492][ T665] ? hlock_class+0x4e/0x130 [ 83.876638][ T665] ? mark_lock+0x38/0x3e0 [ 83.876842][ T665] ? __lock_acquire+0xaf0/0x1570 [ 83.876995][ T665] netlink_rcv_skb+0x130/0x360 [ 83.877141][ T665] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 83.877295][ T665] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 83.877534][ T665] ? lock_acquire.part.0+0xeb/0x330 [ 83.877684][ T665] ? netlink_deliver_tap+0xc8/0x340 [ 83.877829][ T665] ? lock_acquire+0x32/0xc0 [ 83.877980][ T665] ? netlink_deliver_tap+0xc8/0x340 [ 83.878127][ T665] ? netlink_deliver_tap+0xc8/0x340 [ 83.878364][ T665] ? netlink_deliver_tap+0x149/0x340 [ 83.878513][ T665] netlink_unicast+0x449/0x710 [ 83.878660][ T665] ? __pfx_netlink_unicast+0x10/0x10 [ 83.878806][ T665] ? find_held_lock+0x2c/0x110 [ 83.879045][ T665] netlink_sendmsg+0x723/0xbe0 [ 83.879192][ T665] ? __pfx_netlink_sendmsg+0x10/0x10 [ 83.879338][ T665] ? __might_fault+0xc3/0x170 [ 83.879493][ T665] ? __import_iovec+0x35d/0x5d0 [ 83.879734][ T665] ____sys_sendmsg+0x7b2/0xa10 [ 83.879881][ T665] ? __pfx_____sys_sendmsg+0x10/0x10 [ 83.880026][ T665] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 83.880207][ T665] ? __pfx_validate_chain+0x10/0x10 [ 83.880538][ T665] ___sys_sendmsg+0xee/0x170 [ 83.880686][ T665] ? __pfx____sys_sendmsg+0x10/0x10 [ 83.880832][ T665] ? find_held_lock+0x2c/0x110 [ 83.880979][ T665] ? __lock_release+0x103/0x460 [ 83.881217][ T665] ? __debug_check_no_obj_freed+0x253/0x520 [ 83.881401][ T665] ? __pfx___lock_release+0x10/0x10 [ 83.881548][ T665] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 83.881698][ T665] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 83.881975][ T665] ? __fget_light+0x53/0x1e0 [ 83.882123][ T665] __sys_sendmsg+0xcd/0x170 [ 83.882270][ T665] ? __pfx___sys_sendmsg+0x10/0x10 [ 83.882426][ T665] do_syscall_64+0xc6/0x1e0 [ 83.882665][ T665] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 83.882848][ T665] RIP: 0033:0x7fbd0d2e57b7 [ 83.883012][ T665] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 [ 83.883629][ T665] RSP: 002b:00007ffec6d36db8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 83.883868][ T665] RAX: ffffffffffffffda RBX: 00007ffec6d374f0 RCX: 00007fbd0d2e57b7 [ 83.884183][ T665] RDX: 0000000000000000 RSI: 00007ffec6d36e20 RDI: 0000000000000005 [ 83.884403][ T665] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 83.884621][ T665] R10: 00007fbd0d1a34a8 R11: 0000000000000246 R12: 0000000000000002 [ 83.884941][ T665] R13: 00000000660ea69e R14: 0000000000495540 R15: 0000000000000000 [ 83.885164][ T665] [ 83.891467][ T665] ip (665) used greatest stack depth: 22080 bytes left