[ 48.212891][ T460] veth0: entered allmulticast mode [ 48.213831][ T460] veth1: entered allmulticast mode [ 48.214161][ T460] veth2: entered allmulticast mode [ 48.214473][ T460] veth3: entered allmulticast mode [ 52.491439][ T10] [ 52.491546][ T10] ===================================================== [ 52.491712][ T10] WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected [ 52.491914][ T10] 6.9.0-rc1-virtme #1 Not tainted [ 52.492062][ T10] ----------------------------------------------------- [ 52.492227][ T10] kworker/u16:0/10 [HC0[0]:SC0[2]:HE1:SE0] is trying to acquire: [ 52.492431][ T10] ffff888001a60968 (&p->alloc_lock){+.+.}-{2:2}, at: __get_task_comm+0x27/0x70 [ 52.492689][ T10] [ 52.492689][ T10] and this task is already holding: [ 52.492896][ T10] ffff888005bcd580 (&ndev->lock){++--}-{2:2}, at: __ipv6_dev_ac_inc+0x42/0xb10 [ 52.493257][ T10] which would create a new lock dependency: [ 52.493431][ T10] (&ndev->lock){++--}-{2:2} -> (&p->alloc_lock){+.+.}-{2:2} [ 52.493644][ T10] [ 52.493644][ T10] but this new dependency connects a SOFTIRQ-irq-safe lock: [ 52.493871][ T10] (&ndev->lock){++--}-{2:2} [ 52.493875][ T10] [ 52.493875][ T10] ... which became SOFTIRQ-irq-safe at: [ 52.494201][ T10] __lock_acquire+0x797/0x1570 [ 52.494342][ T10] lock_acquire.part.0+0xeb/0x330 [ 52.494479][ T10] _raw_write_lock+0x30/0x40 [ 52.494616][ T10] addrconf_rs_timer+0xa9/0x730 [ 52.494755][ T10] call_timer_fn+0x13b/0x230 [ 52.494891][ T10] __run_timers+0x545/0x810 [ 52.495027][ T10] run_timer_softirq+0xe8/0x1b0 [ 52.495176][ T10] __do_softirq+0x1f8/0x5df [ 52.495310][ T10] irq_exit_rcu+0x97/0xc0 [ 52.495441][ T10] sysvec_apic_timer_interrupt+0x75/0x80 [ 52.495577][ T10] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 52.495752][ T10] default_idle+0xf/0x20 [ 52.495854][ T10] default_idle_call+0x6d/0xb0 [ 52.495987][ T10] cpuidle_idle_call+0x1f4/0x280 [ 52.496125][ T10] do_idle+0xf9/0x160 [ 52.496229][ T10] cpu_startup_entry+0x54/0x60 [ 52.496367][ T10] start_secondary+0x21c/0x2b0 [ 52.496507][ T10] common_startup_64+0x12c/0x138 [ 52.496640][ T10] [ 52.496640][ T10] to a SOFTIRQ-irq-unsafe lock: [ 52.496802][ T10] (&p->alloc_lock){+.+.}-{2:2} [ 52.496806][ T10] [ 52.496806][ T10] ... which became SOFTIRQ-irq-unsafe at: [ 52.497138][ T10] ... [ 52.497140][ T10] __lock_acquire+0x797/0x1570 [ 52.497349][ T10] lock_acquire.part.0+0xeb/0x330 [ 52.497482][ T10] _raw_spin_lock+0x30/0x40 [ 52.497621][ T10] set_mems_allowed+0x1d/0x210 [ 52.497763][ T10] kernel_init_freeable+0x72/0x310 [ 52.497900][ T10] kernel_init+0x20/0x200 [ 52.498038][ T10] ret_from_fork+0x31/0x70 [ 52.498185][ T10] ret_from_fork_asm+0x1a/0x30 [ 52.498319][ T10] [ 52.498319][ T10] other info that might help us debug this: [ 52.498319][ T10] [ 52.498584][ T10] Possible interrupt unsafe locking scenario: [ 52.498584][ T10] [ 52.498781][ T10] CPU0 CPU1 [ 52.498917][ T10] ---- ---- [ 52.499058][ T10] lock(&p->alloc_lock); [ 52.499168][ T10] local_irq_disable(); [ 52.499334][ T10] lock(&ndev->lock); [ 52.499499][ T10] lock(&p->alloc_lock); [ 52.499667][ T10] [ 52.499770][ T10] lock(&ndev->lock); [ 52.499878][ T10] [ 52.499878][ T10] *** DEADLOCK *** [ 52.499878][ T10] [ 52.500080][ T10] 4 locks held by kworker/u16:0/10: [ 52.500220][ T10] #0: ffff8880053e9148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0xda6/0x1730 [ 52.500501][ T10] #1: ffffc900000afda0 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0xde2/0x1730 [ 52.500801][ T10] #2: ffffffff98f969c8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xaf/0xab0 [ 52.501044][ T10] #3: ffff888005bcd580 (&ndev->lock){++--}-{2:2}, at: __ipv6_dev_ac_inc+0x42/0xb10 [ 52.501288][ T10] [ 52.501288][ T10] the dependencies between SOFTIRQ-irq-safe lock and the holding lock: [ 52.501570][ T10] -> (&ndev->lock){++--}-{2:2} { [ 52.501716][ T10] HARDIRQ-ON-W at: [ 52.501819][ T10] __lock_acquire+0x797/0x1570 [ 52.501995][ T10] lock_acquire.part.0+0xeb/0x330 [ 52.502173][ T10] _raw_write_lock_bh+0x38/0x50 [ 52.502345][ T10] addrconf_permanent_addr+0x6e/0x670 [ 52.502516][ T10] addrconf_notify+0x749/0xd60 [ 52.502687][ T10] notifier_call_chain+0xcd/0x150 [ 52.502862][ T10] __dev_notify_flags+0xe6/0x250 [ 52.503036][ T10] dev_change_flags+0xec/0x160 [ 52.503209][ T10] do_setlink+0x7d6/0x21e0 [ 52.503387][ T10] __rtnl_newlink+0xaa7/0xd80 [ 52.503645][ T10] rtnl_newlink+0x63/0xa0 [ 52.503813][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 52.503982][ T10] netlink_rcv_skb+0x130/0x360 [ 52.504157][ T10] netlink_unicast+0x449/0x710 [ 52.504326][ T10] netlink_sendmsg+0x723/0xbe0 [ 52.504583][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 52.504838][ T10] ___sys_sendmsg+0xee/0x170 [ 52.505009][ T10] __sys_sendmsg+0xcd/0x170 [ 52.505197][ T10] do_syscall_64+0xc6/0x1e0 [ 52.505370][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 52.505661][ T10] HARDIRQ-ON-R at: [ 52.505767][ T10] __lock_acquire+0x797/0x1570 [ 52.505942][ T10] lock_acquire.part.0+0xeb/0x330 [ 52.506116][ T10] _raw_read_lock_bh+0x44/0x80 [ 52.506379][ T10] inet6_fill_ifla6_attrs+0x516/0x740 [ 52.506561][ T10] inet6_fill_link_af+0x5e/0xe0 [ 52.506734][ T10] rtnl_fill_ifinfo+0x1612/0x29e0 [ 52.506911][ T10] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 52.507087][ T10] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 52.507375][ T10] rtmsg_ifinfo+0x5b/0xa0 [ 52.507541][ T10] register_netdevice+0x1177/0x1690 [ 52.507720][ T10] register_netdev+0x20/0x40 [ 52.507895][ T10] sit_init_net+0x250/0x4f0 [ 52.508155][ T10] ops_init+0x9b/0x560 [ 52.508292][ T10] register_pernet_operations+0x2db/0x710 [ 52.508498][ T10] register_pernet_device+0x2a/0x60 [ 52.508671][ T10] sit_init+0x23/0xe0 [ 52.508810][ T10] do_one_initcall+0x8d/0x1e0 [ 52.508988][ T10] do_initcalls+0x1b2/0x3e0 [ 52.509249][ T10] kernel_init_freeable+0x232/0x310 [ 52.509425][ T10] kernel_init+0x20/0x200 [ 52.509593][ T10] ret_from_fork+0x31/0x70 [ 52.509852][ T10] ret_from_fork_asm+0x1a/0x30 [ 52.510025][ T10] IN-SOFTIRQ-W at: [ 52.510128][ T10] __lock_acquire+0x797/0x1570 [ 52.510465][ T10] lock_acquire.part.0+0xeb/0x330 [ 52.510633][ T10] _raw_write_lock+0x30/0x40 [ 52.510800][ T10] addrconf_rs_timer+0xa9/0x730 [ 52.511071][ T10] call_timer_fn+0x13b/0x230 [ 52.511248][ T10] __run_timers+0x545/0x810 [ 52.511421][ T10] run_timer_softirq+0xe8/0x1b0 [ 52.511593][ T10] __do_softirq+0x1f8/0x5df [ 52.511863][ T10] irq_exit_rcu+0x97/0xc0 [ 52.512035][ T10] sysvec_apic_timer_interrupt+0x75/0x80 [ 52.512246][ T10] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 52.512548][ T10] default_idle+0xf/0x20 [ 52.512723][ T10] default_idle_call+0x6d/0xb0 [ 52.513060][ T10] cpuidle_idle_call+0x1f4/0x280 [ 52.513231][ T10] do_idle+0xf9/0x160 [ 52.513376][ T10] cpu_startup_entry+0x54/0x60 [ 52.513547][ T10] start_secondary+0x21c/0x2b0 [ 52.513721][ T10] common_startup_64+0x12c/0x138 [ 52.513891][ T10] IN-SOFTIRQ-R at: [ 52.513994][ T10] __lock_acquire+0x797/0x1570 [ 52.514281][ T10] lock_acquire.part.0+0xeb/0x330 [ 52.514452][ T10] _raw_read_lock_bh+0x44/0x80 [ 52.514623][ T10] ipv6_get_lladdr+0xa9/0x3e0 [ 52.514789][ T10] addrconf_rs_timer+0x24a/0x730 [ 52.514960][ T10] call_timer_fn+0x13b/0x230 [ 52.515141][ T10] __run_timers+0x545/0x810 [ 52.515396][ T10] run_timer_softirq+0xe8/0x1b0 [ 52.515575][ T10] __do_softirq+0x1f8/0x5df [ 52.515755][ T10] irq_exit_rcu+0x97/0xc0 [ 52.516097][ T10] sysvec_apic_timer_interrupt+0x75/0x80 [ 52.516322][ T10] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 52.516612][ T10] default_idle+0xf/0x20 [ 52.516780][ T10] default_idle_call+0x6d/0xb0 [ 52.516955][ T10] cpuidle_idle_call+0x1f4/0x280 [ 52.517123][ T10] do_idle+0xf9/0x160 [ 52.517391][ T10] cpu_startup_entry+0x54/0x60 [ 52.517624][ T10] start_secondary+0x21c/0x2b0 [ 52.517839][ T10] common_startup_64+0x12c/0x138 [ 52.518150][ T10] INITIAL USE at: [ 52.518299][ T10] __lock_acquire+0x797/0x1570 [ 52.518552][ T10] lock_acquire.part.0+0xeb/0x330 [ 52.518757][ T10] _raw_write_lock_bh+0x38/0x50 [ 52.519147][ T10] addrconf_permanent_addr+0x6e/0x670 [ 52.519422][ T10] addrconf_notify+0x749/0xd60 [ 52.519815][ T10] notifier_call_chain+0xcd/0x150 [ 52.520071][ T10] __dev_notify_flags+0xe6/0x250 [ 52.520328][ T10] dev_change_flags+0xec/0x160 [ 52.520721][ T10] do_setlink+0x7d6/0x21e0 [ 52.521128][ T10] __rtnl_newlink+0xaa7/0xd80 [ 52.521392][ T10] rtnl_newlink+0x63/0xa0 [ 52.521647][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 52.522040][ T10] netlink_rcv_skb+0x130/0x360 [ 52.522420][ T10] netlink_unicast+0x449/0x710 [ 52.522688][ T10] netlink_sendmsg+0x723/0xbe0 [ 52.523090][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 52.523352][ T10] ___sys_sendmsg+0xee/0x170 [ 52.523745][ T10] __sys_sendmsg+0xcd/0x170 [ 52.524138][ T10] do_syscall_64+0xc6/0x1e0 [ 52.524403][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 52.524698][ T10] INITIAL READ USE at: [ 52.524990][ T10] __lock_acquire+0x797/0x1570 [ 52.525195][ T10] lock_acquire.part.0+0xeb/0x330 [ 52.525475][ T10] _raw_read_lock_bh+0x44/0x80 [ 52.525666][ T10] inet6_fill_ifla6_attrs+0x516/0x740 [ 52.526038][ T10] inet6_fill_link_af+0x5e/0xe0 [ 52.526297][ T10] rtnl_fill_ifinfo+0x1612/0x29e0 [ 52.526515][ T10] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 52.526800][ T10] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 52.527078][ T10] rtmsg_ifinfo+0x5b/0xa0 [ 52.527331][ T10] register_netdevice+0x1177/0x1690 [ 52.527633][ T10] register_netdev+0x20/0x40 [ 52.528025][ T10] sit_init_net+0x250/0x4f0 [ 52.528292][ T10] ops_init+0x9b/0x560 [ 52.528562][ T10] register_pernet_operations+0x2db/0x710 [ 52.529020][ T10] register_pernet_device+0x2a/0x60 [ 52.529330][ T10] sit_init+0x23/0xe0 [ 52.529596][ T10] do_one_initcall+0x8d/0x1e0 [ 52.529996][ T10] do_initcalls+0x1b2/0x3e0 [ 52.530260][ T10] kernel_init_freeable+0x232/0x310 [ 52.530579][ T10] kernel_init+0x20/0x200 [ 52.530977][ T10] ret_from_fork+0x31/0x70 [ 52.531207][ T10] ret_from_fork_asm+0x1a/0x30 [ 52.531376][ T10] } [ 52.531447][ T10] ... key at: [] __key.37+0x0/0x40 [ 52.531732][ T10] [ 52.531732][ T10] the dependencies between the lock to be acquired [ 52.531734][ T10] and SOFTIRQ-irq-unsafe lock: [ 52.532093][ T10] -> (&p->alloc_lock){+.+.}-{2:2} { [ 52.532325][ T10] HARDIRQ-ON-W at: [ 52.532432][ T10] __lock_acquire+0x797/0x1570 [ 52.532604][ T10] lock_acquire.part.0+0xeb/0x330 [ 52.532773][ T10] _raw_spin_lock+0x30/0x40 [ 52.533024][ T10] set_mems_allowed+0x1d/0x210 [ 52.533280][ T10] kernel_init_freeable+0x72/0x310 [ 52.533456][ T10] kernel_init+0x20/0x200 [ 52.533626][ T10] ret_from_fork+0x31/0x70 [ 52.533881][ T10] ret_from_fork_asm+0x1a/0x30 [ 52.534051][ T10] SOFTIRQ-ON-W at: [ 52.534154][ T10] __lock_acquire+0x797/0x1570 [ 52.534325][ T10] lock_acquire.part.0+0xeb/0x330 [ 52.534496][ T10] _raw_spin_lock+0x30/0x40 [ 52.534668][ T10] set_mems_allowed+0x1d/0x210 [ 52.534926][ T10] kernel_init_freeable+0x72/0x310 [ 52.535109][ T10] kernel_init+0x20/0x200 [ 52.535280][ T10] ret_from_fork+0x31/0x70 [ 52.535450][ T10] ret_from_fork_asm+0x1a/0x30 [ 52.535783][ T10] INITIAL USE at: [ 52.535885][ T10] __lock_acquire+0x797/0x1570 [ 52.536058][ T10] lock_acquire.part.0+0xeb/0x330 [ 52.536230][ T10] _raw_spin_lock+0x30/0x40 [ 52.536396][ T10] set_mems_allowed+0x1d/0x210 [ 52.536563][ T10] kernel_init_freeable+0x72/0x310 [ 52.536729][ T10] kernel_init+0x20/0x200 [ 52.536973][ T10] ret_from_fork+0x31/0x70 [ 52.537149][ T10] ret_from_fork_asm+0x1a/0x30 [ 52.537319][ T10] } [ 52.537388][ T10] ... key at: [] __key.387+0x0/0x40 [ 52.537669][ T10] ... acquired at: [ 52.537770][ T10] check_prev_add+0x194/0xce0 [ 52.537907][ T10] validate_chain+0x71d/0x9b0 [ 52.538040][ T10] __lock_acquire+0xaf0/0x1570 [ 52.538175][ T10] lock_acquire.part.0+0xeb/0x330 [ 52.538388][ T10] _raw_spin_lock+0x30/0x40 [ 52.538522][ T10] __get_task_comm+0x27/0x70 [ 52.538658][ T10] ref_tracker_alloc+0x2ee/0x490 [ 52.538793][ T10] netdev_get_by_index+0x5e/0x80 [ 52.539012][ T10] fib6_nh_init+0x3d8/0x15b0 [ 52.539148][ T10] ip6_route_info_create+0xf18/0x17d0 [ 52.539282][ T10] addrconf_f6i_alloc+0x265/0x560 [ 52.539415][ T10] __ipv6_dev_ac_inc+0x25f/0xb10 [ 52.539552][ T10] addrconf_join_anycast+0x1c0/0x220 [ 52.539686][ T10] __ipv6_ifa_notify+0x6b3/0xaf0 [ 52.539819][ T10] addrconf_dad_completed+0x12b/0xe20 [ 52.539955][ T10] addrconf_dad_work+0x38c/0xab0 [ 52.540164][ T10] process_one_work+0xe2c/0x1730 [ 52.540300][ T10] worker_thread+0x587/0xd30 [ 52.540435][ T10] kthread+0x28a/0x350 [ 52.540536][ T10] ret_from_fork+0x31/0x70 [ 52.540681][ T10] ret_from_fork_asm+0x1a/0x30 [ 52.540890][ T10] [ 52.540958][ T10] [ 52.540958][ T10] stack backtrace: [ 52.541124][ T10] CPU: 0 PID: 10 Comm: kworker/u16:0 Not tainted 6.9.0-rc1-virtme #1 [ 52.541328][ T10] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 52.541700][ T10] Workqueue: ipv6_addrconf addrconf_dad_work [ 52.541874][ T10] Call Trace: [ 52.541975][ T10] [ 52.542130][ T10] dump_stack_lvl+0x82/0xd0 [ 52.542270][ T10] print_bad_irq_dependency+0x957/0xd40 [ 52.542405][ T10] ? __pfx_validate_chain+0x10/0x10 [ 52.542541][ T10] ? __pfx_print_bad_irq_dependency+0x10/0x10 [ 52.542705][ T10] ? __pfx_usage_skip+0x10/0x10 [ 52.542838][ T10] ? __bfs+0x246/0x650 [ 52.542939][ T10] ? __pfx_usage_match+0x10/0x10 [ 52.543081][ T10] check_irq_usage+0x596/0x850 [ 52.543215][ T10] ? __pfx_check_irq_usage+0x10/0x10 [ 52.543354][ T10] ? __bfs+0x246/0x650 [ 52.543454][ T10] ? __pfx_hlock_conflict+0x10/0x10 [ 52.543589][ T10] ? check_path.constprop.0+0x24/0x50 [ 52.543720][ T10] ? check_noncircular+0x14c/0x3e0 [ 52.544004][ T10] ? __pfx_check_noncircular+0x10/0x10 [ 52.544146][ T10] ? check_prev_add+0x194/0xce0 [ 52.544280][ T10] check_prev_add+0x194/0xce0 [ 52.544411][ T10] ? validate_chain+0x130/0x9b0 [ 52.544542][ T10] validate_chain+0x71d/0x9b0 [ 52.544754][ T10] ? mark_lock+0x38/0x3e0 [ 52.544854][ T10] ? __pfx_validate_chain+0x10/0x10 [ 52.544985][ T10] ? hlock_class+0x4e/0x130 [ 52.545131][ T10] ? mark_lock+0x38/0x3e0 [ 52.545309][ T10] __lock_acquire+0xaf0/0x1570 [ 52.545449][ T10] lock_acquire.part.0+0xeb/0x330 [ 52.545581][ T10] ? __get_task_comm+0x27/0x70 [ 52.545713][ T10] ? mark_lock+0x38/0x3e0 [ 52.545812][ T10] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 52.546019][ T10] ? trace_lock_acquire+0x135/0x1c0 [ 52.546152][ T10] ? __get_task_comm+0x27/0x70 [ 52.546283][ T10] ? lock_acquire+0x32/0xc0 [ 52.546413][ T10] ? __get_task_comm+0x27/0x70 [ 52.546624][ T10] _raw_spin_lock+0x30/0x40 [ 52.546763][ T10] ? __get_task_comm+0x27/0x70 [ 52.546894][ T10] __get_task_comm+0x27/0x70 [ 52.547025][ T10] ref_tracker_alloc+0x2ee/0x490 [ 52.547237][ T10] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 52.547369][ T10] ? dev_get_by_index+0x177/0x270 [ 52.547499][ T10] ? netdev_get_by_index+0x5e/0x80 [ 52.547631][ T10] ? fib6_nh_init+0x3d8/0x15b0 [ 52.547763][ T10] ? ip6_route_info_create+0xf18/0x17d0 [ 52.547973][ T10] ? addrconf_f6i_alloc+0x265/0x560 [ 52.548104][ T10] ? __ipv6_dev_ac_inc+0x25f/0xb10 [ 52.548235][ T10] ? addrconf_join_anycast+0x1c0/0x220 [ 52.548366][ T10] ? __ipv6_ifa_notify+0x6b3/0xaf0 [ 52.548576][ T10] ? addrconf_dad_completed+0x12b/0xe20 [ 52.548706][ T10] ? addrconf_dad_work+0x38c/0xab0 [ 52.548836][ T10] ? process_one_work+0xe2c/0x1730 [ 52.548971][ T10] ? worker_thread+0x587/0xd30 [ 52.549179][ T10] ? kthread+0x28a/0x350 [ 52.549279][ T10] ? ret_from_fork+0x31/0x70 [ 52.549411][ T10] ? ret_from_fork_asm+0x1a/0x30 [ 52.549545][ T10] ? dev_get_by_index+0x177/0x270 [ 52.549678][ T10] netdev_get_by_index+0x5e/0x80 [ 52.549886][ T10] fib6_nh_init+0x3d8/0x15b0 [ 52.550018][ T10] ? lockdep_hardirqs_on_prepare.part.0+0x14f/0x370 [ 52.550183][ T10] ? __pfx_fib6_nh_init+0x10/0x10 [ 52.550318][ T10] ? kasan_save_track+0x14/0x30 [ 52.550529][ T10] ? __kasan_kmalloc+0x7f/0x90 [ 52.550663][ T10] ? __kmalloc+0x1d7/0x3c0 [ 52.550796][ T10] ? fib6_get_table+0x116/0x290 [ 52.550928][ T10] ip6_route_info_create+0xf18/0x17d0 [ 52.551153][ T10] ? __lock_release+0x103/0x460 [ 52.551289][ T10] ? __pfx_ip6_route_info_create+0x10/0x10 [ 52.551454][ T10] ? addrconf_f6i_alloc+0x12d/0x560 [ 52.551587][ T10] addrconf_f6i_alloc+0x265/0x560 [ 52.551720][ T10] ? __pfx_addrconf_f6i_alloc+0x10/0x10 [ 52.551856][ T10] ? do_raw_write_lock+0x122/0x3b0 [ 52.551990][ T10] ? __pfx_do_raw_write_lock+0x10/0x10 [ 52.552124][ T10] ? lock_acquire+0x32/0xc0 [ 52.552259][ T10] __ipv6_dev_ac_inc+0x25f/0xb10 [ 52.552392][ T10] ? mark_held_locks+0x9e/0xe0 [ 52.552526][ T10] addrconf_join_anycast+0x1c0/0x220 [ 52.552663][ T10] ? ip6_ins_rt+0xbd/0x110 [ 52.552873][ T10] ? __pfx_addrconf_join_anycast+0x10/0x10 [ 52.553039][ T10] __ipv6_ifa_notify+0x6b3/0xaf0 [ 52.553173][ T10] ? __pfx___ipv6_ifa_notify+0x10/0x10 [ 52.553307][ T10] ? __pfx___cancel_work+0x10/0x10 [ 52.553518][ T10] ? find_held_lock+0x2c/0x110 [ 52.553653][ T10] ? addrconf_dad_completed+0x12b/0xe20 [ 52.553784][ T10] addrconf_dad_completed+0x12b/0xe20 [ 52.553919][ T10] ? hlock_class+0x4e/0x130 [ 52.554053][ T10] ? __pfx_addrconf_dad_completed+0x10/0x10 [ 52.554319][ T10] ? mark_held_locks+0x9e/0xe0 [ 52.554454][ T10] ? addrconf_dad_work+0x38c/0xab0 [ 52.554586][ T10] addrconf_dad_work+0x38c/0xab0 [ 52.554720][ T10] ? __pfx_addrconf_dad_work+0x10/0x10 [ 52.554852][ T10] ? process_one_work+0xde2/0x1730 [ 52.554985][ T10] ? lock_acquire+0x32/0xc0 [ 52.555132][ T10] ? process_one_work+0xde2/0x1730 [ 52.555265][ T10] process_one_work+0xe2c/0x1730 [ 52.555481][ T10] ? __pfx___lock_release+0x10/0x10 [ 52.555613][ T10] ? __pfx_process_one_work+0x10/0x10 [ 52.555749][ T10] ? assign_work+0x16c/0x240 [ 52.555882][ T10] worker_thread+0x587/0xd30 [ 52.556103][ T10] ? __pfx_worker_thread+0x10/0x10 [ 52.556235][ T10] kthread+0x28a/0x350 [ 52.556339][ T10] ? __pfx_kthread+0x10/0x10 [ 52.556471][ T10] ret_from_fork+0x31/0x70 [ 52.556605][ T10] ? __pfx_kthread+0x10/0x10 [ 52.556737][ T10] ret_from_fork_asm+0x1a/0x30 [ 52.556871][ T10] [ 70.885861][ T460] veth0: left allmulticast mode [ 70.886174][ T460] veth1: left allmulticast mode [ 70.886381][ T460] veth2: left allmulticast mode [ 70.886585][ T460] veth3: left allmulticast mode