[ 76.472911][ T10] [ 76.473085][ T10] ===================================================== [ 76.473257][ T10] WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected [ 76.473461][ T10] 6.9.0-rc1-virtme #1 Not tainted [ 76.473598][ T10] ----------------------------------------------------- [ 76.473766][ T10] kworker/u16:0/10 [HC0[0]:SC0[2]:HE1:SE0] is trying to acquire: [ 76.473974][ T10] ffff888001a70968 (&p->alloc_lock){+.+.}-{2:2}, at: __get_task_comm+0x27/0x70 [ 76.474226][ T10] [ 76.474226][ T10] and this task is already holding: [ 76.474432][ T10] ffff8880026a3d80 (&ndev->lock){++--}-{2:2}, at: __ipv6_dev_ac_inc+0x42/0xb10 [ 76.474672][ T10] which would create a new lock dependency: [ 76.474854][ T10] (&ndev->lock){++--}-{2:2} -> (&p->alloc_lock){+.+.}-{2:2} [ 76.475062][ T10] [ 76.475062][ T10] but this new dependency connects a SOFTIRQ-irq-safe lock: [ 76.475292][ T10] (&ndev->lock){++--}-{2:2} [ 76.475296][ T10] [ 76.475296][ T10] ... which became SOFTIRQ-irq-safe at: [ 76.475616][ T10] __lock_acquire+0x797/0x1570 [ 76.475755][ T10] lock_acquire.part.0+0xeb/0x330 [ 76.475887][ T10] _raw_write_lock+0x30/0x40 [ 76.476022][ T10] addrconf_rs_timer+0xa9/0x730 [ 76.476234][ T10] call_timer_fn+0x13b/0x230 [ 76.476366][ T10] __run_timers+0x545/0x810 [ 76.476498][ T10] run_timer_softirq+0xe8/0x1b0 [ 76.476632][ T10] __do_softirq+0x1f8/0x5df [ 76.476842][ T10] irq_exit_rcu+0x97/0xc0 [ 76.476974][ T10] sysvec_apic_timer_interrupt+0x75/0x80 [ 76.477111][ T10] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 76.477275][ T10] default_idle+0xf/0x20 [ 76.477375][ T10] default_idle_call+0x6d/0xb0 [ 76.477584][ T10] cpuidle_idle_call+0x1f4/0x280 [ 76.477716][ T10] do_idle+0xf9/0x160 [ 76.477814][ T10] cpu_startup_entry+0x54/0x60 [ 76.477945][ T10] rest_init+0x14f/0x260 [ 76.478136][ T10] start_kernel+0x318/0x3d0 [ 76.478269][ T10] x86_64_start_reservations+0x18/0x30 [ 76.478399][ T10] x86_64_start_kernel+0xba/0x110 [ 76.478528][ T10] common_startup_64+0x12c/0x138 [ 76.478663][ T10] [ 76.478663][ T10] to a SOFTIRQ-irq-unsafe lock: [ 76.478830][ T10] (&p->alloc_lock){+.+.}-{2:2} [ 76.478833][ T10] [ 76.478833][ T10] ... which became SOFTIRQ-irq-unsafe at: [ 76.479151][ T10] ... [ 76.479152][ T10] __lock_acquire+0x797/0x1570 [ 76.479349][ T10] lock_acquire.part.0+0xeb/0x330 [ 76.479478][ T10] _raw_spin_lock+0x30/0x40 [ 76.479608][ T10] set_mems_allowed+0x1d/0x210 [ 76.479744][ T10] kernel_init_freeable+0x72/0x310 [ 76.480027][ T10] kernel_init+0x20/0x200 [ 76.480156][ T10] ret_from_fork+0x31/0x70 [ 76.480288][ T10] ret_from_fork_asm+0x1a/0x30 [ 76.480418][ T10] [ 76.480418][ T10] other info that might help us debug this: [ 76.480418][ T10] [ 76.480744][ T10] Possible interrupt unsafe locking scenario: [ 76.480744][ T10] [ 76.480939][ T10] CPU0 CPU1 [ 76.481079][ T10] ---- ---- [ 76.481286][ T10] lock(&p->alloc_lock); [ 76.481387][ T10] local_irq_disable(); [ 76.481548][ T10] lock(&ndev->lock); [ 76.481714][ T10] lock(&p->alloc_lock); [ 76.481955][ T10] [ 76.482053][ T10] lock(&ndev->lock); [ 76.482158][ T10] [ 76.482158][ T10] *** DEADLOCK *** [ 76.482158][ T10] [ 76.482349][ T10] 4 locks held by kworker/u16:0/10: [ 76.482555][ T10] #0: ffff888005313548 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0xda6/0x1730 [ 76.482827][ T10] #1: ffffc900000afda0 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0xde2/0x1730 [ 76.483223][ T10] #2: ffffffffa7fb7208 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xaf/0xab0 [ 76.483455][ T10] #3: ffff8880026a3d80 (&ndev->lock){++--}-{2:2}, at: __ipv6_dev_ac_inc+0x42/0xb10 [ 76.483691][ T10] [ 76.483691][ T10] the dependencies between SOFTIRQ-irq-safe lock and the holding lock: [ 76.483943][ T10] -> (&ndev->lock){++--}-{2:2} { [ 76.484081][ T10] HARDIRQ-ON-W at: [ 76.484182][ T10] __lock_acquire+0x797/0x1570 [ 76.484356][ T10] lock_acquire.part.0+0xeb/0x330 [ 76.484523][ T10] _raw_write_lock_bh+0x38/0x50 [ 76.484689][ T10] addrconf_permanent_addr+0x6e/0x670 [ 76.484934][ T10] addrconf_notify+0x749/0xd60 [ 76.485099][ T10] notifier_call_chain+0xcd/0x150 [ 76.485264][ T10] __dev_notify_flags+0xe6/0x250 [ 76.485436][ T10] dev_change_flags+0xec/0x160 [ 76.485678][ T10] do_setlink+0x7d6/0x21e0 [ 76.485843][ T10] __rtnl_newlink+0xaa7/0xd80 [ 76.486006][ T10] rtnl_newlink+0x63/0xa0 [ 76.486249][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 76.486415][ T10] netlink_rcv_skb+0x130/0x360 [ 76.486586][ T10] netlink_unicast+0x449/0x710 [ 76.486751][ T10] netlink_sendmsg+0x723/0xbe0 [ 76.486994][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 76.487160][ T10] ___sys_sendmsg+0xee/0x170 [ 76.487328][ T10] __sys_sendmsg+0xcd/0x170 [ 76.487574][ T10] do_syscall_64+0xc6/0x1e0 [ 76.487740][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 76.487942][ T10] HARDIRQ-ON-R at: [ 76.488041][ T10] __lock_acquire+0x797/0x1570 [ 76.488300][ T10] lock_acquire.part.0+0xeb/0x330 [ 76.488464][ T10] _raw_read_lock_bh+0x44/0x80 [ 76.488631][ T10] inet6_fill_ifla6_attrs+0x516/0x740 [ 76.488796][ T10] inet6_fill_link_af+0x5e/0xe0 [ 76.488963][ T10] rtnl_fill_ifinfo+0x1615/0x2a90 [ 76.489130][ T10] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 76.489296][ T10] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 76.489496][ T10] rtmsg_ifinfo+0x5b/0xa0 [ 76.489660][ T10] register_netdevice+0x1177/0x1690 [ 76.489825][ T10] register_netdev+0x20/0x40 [ 76.490155][ T10] vti6_init_net+0x25d/0x380 [ 76.490322][ T10] ops_init+0x9b/0x560 [ 76.490456][ T10] register_pernet_operations+0x2db/0x710 [ 76.490732][ T10] register_pernet_device+0x2a/0x60 [ 76.490896][ T10] vti6_tunnel_init+0x18/0x110 [ 76.491069][ T10] do_one_initcall+0x8d/0x1e0 [ 76.491321][ T10] do_initcalls+0x1b2/0x3e0 [ 76.491492][ T10] kernel_init_freeable+0x232/0x310 [ 76.491656][ T10] kernel_init+0x20/0x200 [ 76.491822][ T10] ret_from_fork+0x31/0x70 [ 76.492068][ T10] ret_from_fork_asm+0x1a/0x30 [ 76.492233][ T10] IN-SOFTIRQ-W at: [ 76.492333][ T10] __lock_acquire+0x797/0x1570 [ 76.492498][ T10] lock_acquire.part.0+0xeb/0x330 [ 76.492745][ T10] _raw_write_lock+0x30/0x40 [ 76.492911][ T10] addrconf_rs_timer+0xa9/0x730 [ 76.493074][ T10] call_timer_fn+0x13b/0x230 [ 76.493318][ T10] __run_timers+0x545/0x810 [ 76.493483][ T10] run_timer_softirq+0xe8/0x1b0 [ 76.493649][ T10] __do_softirq+0x1f8/0x5df [ 76.493900][ T10] irq_exit_rcu+0x97/0xc0 [ 76.494065][ T10] sysvec_apic_timer_interrupt+0x75/0x80 [ 76.494264][ T10] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 76.494539][ T10] default_idle+0xf/0x20 [ 76.494704][ T10] default_idle_call+0x6d/0xb0 [ 76.494871][ T10] cpuidle_idle_call+0x1f4/0x280 [ 76.495040][ T10] do_idle+0xf9/0x160 [ 76.495252][ T10] cpu_startup_entry+0x54/0x60 [ 76.495418][ T10] rest_init+0x14f/0x260 [ 76.495583][ T10] start_kernel+0x318/0x3d0 [ 76.495828][ T10] x86_64_start_reservations+0x18/0x30 [ 76.495994][ T10] x86_64_start_kernel+0xba/0x110 [ 76.496159][ T10] common_startup_64+0x12c/0x138 [ 76.496329][ T10] IN-SOFTIRQ-R at: [ 76.496505][ T10] __lock_acquire+0x797/0x1570 [ 76.496673][ T10] lock_acquire.part.0+0xeb/0x330 [ 76.496838][ T10] _raw_read_lock_bh+0x44/0x80 [ 76.497002][ T10] ipv6_get_lladdr+0xa9/0x3e0 [ 76.497254][ T10] addrconf_rs_timer+0x24a/0x730 [ 76.497422][ T10] call_timer_fn+0x13b/0x230 [ 76.497589][ T10] __run_timers+0x545/0x810 [ 76.497759][ T10] run_timer_softirq+0xe8/0x1b0 [ 76.497924][ T10] __do_softirq+0x1f8/0x5df [ 76.498088][ T10] irq_exit_rcu+0x97/0xc0 [ 76.498253][ T10] sysvec_apic_timer_interrupt+0x75/0x80 [ 76.498452][ T10] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 76.498654][ T10] default_idle+0xf/0x20 [ 76.498899][ T10] default_idle_call+0x6d/0xb0 [ 76.499064][ T10] cpuidle_idle_call+0x1f4/0x280 [ 76.499229][ T10] do_idle+0xf9/0x160 [ 76.499365][ T10] cpu_startup_entry+0x54/0x60 [ 76.499608][ T10] rest_init+0x14f/0x260 [ 76.499777][ T10] start_kernel+0x318/0x3d0 [ 76.499941][ T10] x86_64_start_reservations+0x18/0x30 [ 76.500263][ T10] x86_64_start_kernel+0xba/0x110 [ 76.500431][ T10] common_startup_64+0x12c/0x138 [ 76.500596][ T10] INITIAL USE at: [ 76.500695][ T10] __lock_acquire+0x797/0x1570 [ 76.500938][ T10] lock_acquire.part.0+0xeb/0x330 [ 76.501117][ T10] _raw_write_lock_bh+0x38/0x50 [ 76.501285][ T10] addrconf_permanent_addr+0x6e/0x670 [ 76.501454][ T10] addrconf_notify+0x749/0xd60 [ 76.501698][ T10] notifier_call_chain+0xcd/0x150 [ 76.501862][ T10] __dev_notify_flags+0xe6/0x250 [ 76.502029][ T10] dev_change_flags+0xec/0x160 [ 76.502276][ T10] do_setlink+0x7d6/0x21e0 [ 76.502442][ T10] __rtnl_newlink+0xaa7/0xd80 [ 76.502607][ T10] rtnl_newlink+0x63/0xa0 [ 76.502850][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 76.503014][ T10] netlink_rcv_skb+0x130/0x360 [ 76.503179][ T10] netlink_unicast+0x449/0x710 [ 76.503352][ T10] netlink_sendmsg+0x723/0xbe0 [ 76.503599][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 76.503764][ T10] ___sys_sendmsg+0xee/0x170 [ 76.503929][ T10] __sys_sendmsg+0xcd/0x170 [ 76.504183][ T10] do_syscall_64+0xc6/0x1e0 [ 76.504349][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 76.504545][ T10] INITIAL READ USE at: [ 76.504644][ T10] __lock_acquire+0x797/0x1570 [ 76.504812][ T10] lock_acquire.part.0+0xeb/0x330 [ 76.504977][ T10] _raw_read_lock_bh+0x44/0x80 [ 76.505145][ T10] inet6_fill_ifla6_attrs+0x516/0x740 [ 76.505343][ T10] inet6_fill_link_af+0x5e/0xe0 [ 76.505508][ T10] rtnl_fill_ifinfo+0x1615/0x2a90 [ 76.505677][ T10] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 76.505954][ T10] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 76.506152][ T10] rtmsg_ifinfo+0x5b/0xa0 [ 76.506319][ T10] register_netdevice+0x1177/0x1690 [ 76.506596][ T10] register_netdev+0x20/0x40 [ 76.506761][ T10] vti6_init_net+0x25d/0x380 [ 76.506932][ T10] ops_init+0x9b/0x560 [ 76.507096][ T10] register_pernet_operations+0x2db/0x710 [ 76.507372][ T10] register_pernet_device+0x2a/0x60 [ 76.507567][ T10] vti6_tunnel_init+0x18/0x110 [ 76.507733][ T10] do_one_initcall+0x8d/0x1e0 [ 76.507981][ T10] do_initcalls+0x1b2/0x3e0 [ 76.508148][ T10] kernel_init_freeable+0x232/0x310 [ 76.508344][ T10] kernel_init+0x20/0x200 [ 76.508587][ T10] ret_from_fork+0x31/0x70 [ 76.508755][ T10] ret_from_fork_asm+0x1a/0x30 [ 76.508929][ T10] } [ 76.508998][ T10] ... key at: [] __key.37+0x0/0x40 [ 76.509295][ T10] [ 76.509295][ T10] the dependencies between the lock to be acquired [ 76.509297][ T10] and SOFTIRQ-irq-unsafe lock: [ 76.509649][ T10] -> (&p->alloc_lock){+.+.}-{2:2} { [ 76.509790][ T10] HARDIRQ-ON-W at: [ 76.509891][ T10] __lock_acquire+0x797/0x1570 [ 76.510058][ T10] lock_acquire.part.0+0xeb/0x330 [ 76.510225][ T10] _raw_spin_lock+0x30/0x40 [ 76.510475][ T10] set_mems_allowed+0x1d/0x210 [ 76.510643][ T10] kernel_init_freeable+0x72/0x310 [ 76.510807][ T10] kernel_init+0x20/0x200 [ 76.511064][ T10] ret_from_fork+0x31/0x70 [ 76.511232][ T10] ret_from_fork_asm+0x1a/0x30 [ 76.511397][ T10] SOFTIRQ-ON-W at: [ 76.511497][ T10] __lock_acquire+0x797/0x1570 [ 76.511669][ T10] lock_acquire.part.0+0xeb/0x330 [ 76.511835][ T10] _raw_spin_lock+0x30/0x40 [ 76.512001][ T10] set_mems_allowed+0x1d/0x210 [ 76.512243][ T10] kernel_init_freeable+0x72/0x310 [ 76.512409][ T10] kernel_init+0x20/0x200 [ 76.512578][ T10] ret_from_fork+0x31/0x70 [ 76.512744][ T10] ret_from_fork_asm+0x1a/0x30 [ 76.512997][ T10] INITIAL USE at: [ 76.513096][ T10] __lock_acquire+0x797/0x1570 [ 76.513262][ T10] lock_acquire.part.0+0xeb/0x330 [ 76.513430][ T10] _raw_spin_lock+0x30/0x40 [ 76.513675][ T10] set_mems_allowed+0x1d/0x210 [ 76.513840][ T10] kernel_init_freeable+0x72/0x310 [ 76.514009][ T10] kernel_init+0x20/0x200 [ 76.514253][ T10] ret_from_fork+0x31/0x70 [ 76.514422][ T10] ret_from_fork_asm+0x1a/0x30 [ 76.514592][ T10] } [ 76.514660][ T10] ... key at: [] __key.388+0x0/0x40 [ 76.514935][ T10] ... acquired at: [ 76.515037][ T10] check_prev_add+0x194/0xce0 [ 76.515172][ T10] validate_chain+0x71d/0x9b0 [ 76.515310][ T10] __lock_acquire+0xaf0/0x1570 [ 76.515520][ T10] lock_acquire.part.0+0xeb/0x330 [ 76.515653][ T10] _raw_spin_lock+0x30/0x40 [ 76.515785][ T10] __get_task_comm+0x27/0x70 [ 76.515918][ T10] ref_tracker_alloc+0x2ee/0x490 [ 76.516146][ T10] netdev_get_by_index+0x5e/0x80 [ 76.516283][ T10] fib6_nh_init+0x3d8/0x1580 [ 76.516416][ T10] ip6_route_info_create+0xf18/0x17d0 [ 76.516554][ T10] addrconf_f6i_alloc+0x265/0x560 [ 76.516686][ T10] __ipv6_dev_ac_inc+0x25f/0xb10 [ 76.516820][ T10] addrconf_join_anycast+0x1c0/0x220 [ 76.516951][ T10] __ipv6_ifa_notify+0x6b3/0xaf0 [ 76.517083][ T10] addrconf_dad_completed+0x12b/0xe20 [ 76.517217][ T10] addrconf_dad_begin+0x310/0x670 [ 76.517348][ T10] addrconf_dad_work+0x10b/0xab0 [ 76.517482][ T10] process_one_work+0xe2c/0x1730 [ 76.517616][ T10] worker_thread+0x587/0xd30 [ 76.517748][ T10] kthread+0x28a/0x350 [ 76.517925][ T10] ret_from_fork+0x31/0x70 [ 76.518060][ T10] ret_from_fork_asm+0x1a/0x30 [ 76.518191][ T10] [ 76.518258][ T10] [ 76.518258][ T10] stack backtrace: [ 76.518426][ T10] CPU: 0 PID: 10 Comm: kworker/u16:0 Not tainted 6.9.0-rc1-virtme #1 [ 76.518707][ T10] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 76.519001][ T10] Workqueue: ipv6_addrconf addrconf_dad_work [ 76.519248][ T10] Call Trace: [ 76.519359][ T10] [ 76.519429][ T10] dump_stack_lvl+0x82/0xd0 [ 76.519568][ T10] print_bad_irq_dependency+0x957/0xd40 [ 76.519701][ T10] ? __pfx_validate_chain+0x10/0x10 [ 76.519916][ T10] ? __pfx_print_bad_irq_dependency+0x10/0x10 [ 76.520083][ T10] ? __pfx_usage_skip+0x10/0x10 [ 76.520213][ T10] ? __bfs+0x246/0x650 [ 76.520314][ T10] ? __pfx_usage_match+0x10/0x10 [ 76.520600][ T10] check_irq_usage+0x596/0x850 [ 76.520734][ T10] ? __pfx_check_irq_usage+0x10/0x10 [ 76.520867][ T10] ? __bfs+0x246/0x650 [ 76.520969][ T10] ? __pfx_hlock_conflict+0x10/0x10 [ 76.521107][ T10] ? check_path.constprop.0+0x24/0x50 [ 76.521317][ T10] ? check_noncircular+0x14c/0x3e0 [ 76.521450][ T10] ? __pfx_check_noncircular+0x10/0x10 [ 76.521585][ T10] ? check_prev_add+0x194/0xce0 [ 76.521716][ T10] check_prev_add+0x194/0xce0 [ 76.521929][ T10] ? validate_chain+0x130/0x9b0 [ 76.522062][ T10] validate_chain+0x71d/0x9b0 [ 76.522196][ T10] ? mark_lock+0x38/0x3e0 [ 76.522297][ T10] ? __pfx_validate_chain+0x10/0x10 [ 76.522440][ T10] ? hlock_class+0x4e/0x130 [ 76.522648][ T10] ? mark_lock+0x38/0x3e0 [ 76.522750][ T10] __lock_acquire+0xaf0/0x1570 [ 76.522887][ T10] lock_acquire.part.0+0xeb/0x330 [ 76.523019][ T10] ? __get_task_comm+0x27/0x70 [ 76.523228][ T10] ? mark_lock+0x38/0x3e0 [ 76.523329][ T10] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 76.523461][ T10] ? trace_lock_acquire+0x135/0x1c0 [ 76.523596][ T10] ? __get_task_comm+0x27/0x70 [ 76.523727][ T10] ? lock_acquire+0x32/0xc0 [ 76.523942][ T10] ? __get_task_comm+0x27/0x70 [ 76.524075][ T10] _raw_spin_lock+0x30/0x40 [ 76.524206][ T10] ? __get_task_comm+0x27/0x70 [ 76.524338][ T10] __get_task_comm+0x27/0x70 [ 76.524545][ T10] ref_tracker_alloc+0x2ee/0x490 [ 76.524681][ T10] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 76.524816][ T10] ? dev_get_by_index+0x177/0x270 [ 76.524951][ T10] ? netdev_get_by_index+0x5e/0x80 [ 76.525173][ T10] ? fib6_nh_init+0x3d8/0x1580 [ 76.525306][ T10] ? ip6_route_info_create+0xf18/0x17d0 [ 76.525437][ T10] ? addrconf_f6i_alloc+0x265/0x560 [ 76.525569][ T10] ? __ipv6_dev_ac_inc+0x25f/0xb10 [ 76.525703][ T10] ? addrconf_join_anycast+0x1c0/0x220 [ 76.525834][ T10] ? __ipv6_ifa_notify+0x6b3/0xaf0 [ 76.525966][ T10] ? addrconf_dad_completed+0x12b/0xe20 [ 76.526102][ T10] ? addrconf_dad_begin+0x310/0x670 [ 76.526232][ T10] ? addrconf_dad_work+0x10b/0xab0 [ 76.526364][ T10] ? process_one_work+0xe2c/0x1730 [ 76.526497][ T10] ? worker_thread+0x587/0xd30 [ 76.526628][ T10] ? kthread+0x28a/0x350 [ 76.526728][ T10] ? ret_from_fork+0x31/0x70 [ 76.526936][ T10] ? ret_from_fork_asm+0x1a/0x30 [ 76.527069][ T10] ? dev_get_by_index+0x177/0x270 [ 76.527206][ T10] netdev_get_by_index+0x5e/0x80 [ 76.527337][ T10] fib6_nh_init+0x3d8/0x1580 [ 76.527548][ T10] ? lockdep_hardirqs_on_prepare.part.0+0x14f/0x370 [ 76.527713][ T10] ? __pfx_fib6_nh_init+0x10/0x10 [ 76.527844][ T10] ? kasan_save_track+0x14/0x30 [ 76.527977][ T10] ? __kasan_kmalloc+0x7f/0x90 [ 76.528187][ T10] ? __kmalloc+0x1d7/0x3c0 [ 76.528328][ T10] ? fib6_get_table+0x116/0x290 [ 76.528468][ T10] ip6_route_info_create+0xf18/0x17d0 [ 76.528599][ T10] ? __lock_release+0x103/0x460 [ 76.528733][ T10] ? __pfx_ip6_route_info_create+0x10/0x10 [ 76.528974][ T10] ? addrconf_f6i_alloc+0x12d/0x560 [ 76.529108][ T10] addrconf_f6i_alloc+0x265/0x560 [ 76.529240][ T10] ? __pfx_addrconf_f6i_alloc+0x10/0x10 [ 76.529379][ T10] ? do_raw_write_lock+0x122/0x3b0 [ 76.529587][ T10] ? __pfx_do_raw_write_lock+0x10/0x10 [ 76.529722][ T10] ? lock_acquire+0x32/0xc0 [ 76.529855][ T10] __ipv6_dev_ac_inc+0x25f/0xb10 [ 76.529987][ T10] ? mark_held_locks+0x9e/0xe0 [ 76.530217][ T10] addrconf_join_anycast+0x1c0/0x220 [ 76.530351][ T10] ? ip6_ins_rt+0xbd/0x110 [ 76.530483][ T10] ? __pfx_addrconf_join_anycast+0x10/0x10 [ 76.530648][ T10] __ipv6_ifa_notify+0x6b3/0xaf0 [ 76.530780][ T10] ? __pfx___ipv6_ifa_notify+0x10/0x10 [ 76.530918][ T10] ? __pfx___cancel_work+0x10/0x10 [ 76.531050][ T10] ? find_held_lock+0x2c/0x110 [ 76.531198][ T10] ? addrconf_dad_completed+0x12b/0xe20 [ 76.531408][ T10] addrconf_dad_completed+0x12b/0xe20 [ 76.531539][ T10] ? hlock_class+0x4e/0x130 [ 76.531672][ T10] ? __pfx_addrconf_dad_completed+0x10/0x10 [ 76.531835][ T10] ? mark_held_locks+0x9e/0xe0 [ 76.532045][ T10] ? addrconf_dad_begin+0x310/0x670 [ 76.532189][ T10] addrconf_dad_begin+0x310/0x670 [ 76.532319][ T10] ? hlock_class+0x4e/0x130 [ 76.532451][ T10] ? __pfx_addrconf_dad_begin+0x10/0x10 [ 76.532661][ T10] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 76.532824][ T10] addrconf_dad_work+0x10b/0xab0 [ 76.532955][ T10] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 76.533090][ T10] ? __pfx_addrconf_dad_work+0x10/0x10 [ 76.533303][ T10] ? process_one_work+0xde2/0x1730 [ 76.533441][ T10] ? lock_acquire+0x32/0xc0 [ 76.533573][ T10] ? process_one_work+0xde2/0x1730 [ 76.533706][ T10] process_one_work+0xe2c/0x1730 [ 76.533840][ T10] ? __pfx___lock_release+0x10/0x10 [ 76.534053][ T10] ? __pfx_process_one_work+0x10/0x10 [ 76.534187][ T10] ? assign_work+0x16c/0x240 [ 76.534321][ T10] worker_thread+0x587/0xd30 [ 76.534460][ T10] ? __pfx_worker_thread+0x10/0x10 [ 76.534668][ T10] kthread+0x28a/0x350 [ 76.534769][ T10] ? __pfx_kthread+0x10/0x10 [ 76.534900][ T10] ret_from_fork+0x31/0x70 [ 76.535035][ T10] ? __pfx_kthread+0x10/0x10 [ 76.535242][ T10] ret_from_fork_asm+0x1a/0x30 [ 76.535377][ T10]