[ 52.588295][ T10] [ 52.588395][ T10] ===================================================== [ 52.588573][ T10] WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected [ 52.588776][ T10] 6.9.0-rc1-virtme #1 Not tainted [ 52.588915][ T10] ----------------------------------------------------- [ 52.589085][ T10] kworker/u16:0/10 [HC0[0]:SC0[2]:HE1:SE0] is trying to acquire: [ 52.589296][ T10] ffff888001a60968 (&p->alloc_lock){+.+.}-{2:2}, at: __get_task_comm+0x27/0x70 [ 52.589586][ T10] [ 52.589586][ T10] and this task is already holding: [ 52.589787][ T10] ffff888002826d80 (&ndev->lock){++--}-{2:2}, at: __ipv6_dev_ac_inc+0x42/0xb10 [ 52.590035][ T10] which would create a new lock dependency: [ 52.590208][ T10] (&ndev->lock){++--}-{2:2} -> (&p->alloc_lock){+.+.}-{2:2} [ 52.590417][ T10] [ 52.590417][ T10] but this new dependency connects a SOFTIRQ-irq-safe lock: [ 52.590667][ T10] (&ndev->lock){++--}-{2:2} [ 52.590671][ T10] [ 52.590671][ T10] ... which became SOFTIRQ-irq-safe at: [ 52.591015][ T10] __lock_acquire+0x797/0x1570 [ 52.591162][ T10] lock_acquire.part.0+0xeb/0x330 [ 52.591296][ T10] _raw_write_lock+0x30/0x40 [ 52.591437][ T10] addrconf_rs_timer+0xa9/0x730 [ 52.591577][ T10] call_timer_fn+0x13b/0x230 [ 52.591721][ T10] __run_timers+0x545/0x810 [ 52.591860][ T10] timer_expire_remote+0x9b/0xe0 [ 52.591996][ T10] tmigr_handle_remote_cpu+0x270/0x430 [ 52.592133][ T10] tmigr_handle_remote_up+0x19f/0x2e0 [ 52.592266][ T10] tmigr_handle_remote+0x21d/0x3a0 [ 52.592404][ T10] __do_softirq+0x1f8/0x5df [ 52.592555][ T10] irq_exit_rcu+0x97/0xc0 [ 52.592693][ T10] sysvec_apic_timer_interrupt+0x75/0x80 [ 52.592831][ T10] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 52.593005][ T10] default_idle+0xf/0x20 [ 52.593114][ T10] default_idle_call+0x6d/0xb0 [ 52.593249][ T10] cpuidle_idle_call+0x1f4/0x280 [ 52.593391][ T10] do_idle+0xf9/0x160 [ 52.593499][ T10] cpu_startup_entry+0x54/0x60 [ 52.593658][ T10] start_secondary+0x21c/0x2b0 [ 52.593795][ T10] common_startup_64+0x12c/0x138 [ 52.593928][ T10] [ 52.593928][ T10] to a SOFTIRQ-irq-unsafe lock: [ 52.594100][ T10] (&p->alloc_lock){+.+.}-{2:2} [ 52.594104][ T10] [ 52.594104][ T10] ... which became SOFTIRQ-irq-unsafe at: [ 52.594434][ T10] ... [ 52.594436][ T10] __lock_acquire+0x797/0x1570 [ 52.594646][ T10] lock_acquire.part.0+0xeb/0x330 [ 52.594784][ T10] _raw_spin_lock+0x30/0x40 [ 52.594918][ T10] set_mems_allowed+0x1d/0x210 [ 52.595050][ T10] kernel_init_freeable+0x72/0x310 [ 52.595189][ T10] kernel_init+0x20/0x200 [ 52.595322][ T10] ret_from_fork+0x31/0x70 [ 52.595458][ T10] ret_from_fork_asm+0x1a/0x30 [ 52.595602][ T10] [ 52.595602][ T10] other info that might help us debug this: [ 52.595602][ T10] [ 52.595866][ T10] Possible interrupt unsafe locking scenario: [ 52.595866][ T10] [ 52.596064][ T10] CPU0 CPU1 [ 52.596203][ T10] ---- ---- [ 52.596335][ T10] lock(&p->alloc_lock); [ 52.596445][ T10] local_irq_disable(); [ 52.596616][ T10] lock(&ndev->lock); [ 52.596788][ T10] lock(&p->alloc_lock); [ 52.596959][ T10] [ 52.597061][ T10] lock(&ndev->lock); [ 52.597165][ T10] [ 52.597165][ T10] *** DEADLOCK *** [ 52.597165][ T10] [ 52.597373][ T10] 4 locks held by kworker/u16:0/10: [ 52.597518][ T10] #0: ffff888005399148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0xda6/0x1730 [ 52.597817][ T10] #1: ffffc900000afda0 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0xde2/0x1730 [ 52.598122][ T10] #2: ffffffff8e9969c8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xaf/0xab0 [ 52.598395][ T10] #3: ffff888002826d80 (&ndev->lock){++--}-{2:2}, at: __ipv6_dev_ac_inc+0x42/0xb10 [ 52.598636][ T10] [ 52.598636][ T10] the dependencies between SOFTIRQ-irq-safe lock and the holding lock: [ 52.598903][ T10] -> (&ndev->lock){++--}-{2:2} { [ 52.599047][ T10] HARDIRQ-ON-W at: [ 52.599151][ T10] __lock_acquire+0x797/0x1570 [ 52.599328][ T10] lock_acquire.part.0+0xeb/0x330 [ 52.599507][ T10] _raw_write_lock_bh+0x38/0x50 [ 52.599687][ T10] addrconf_permanent_addr+0x6e/0x670 [ 52.599862][ T10] addrconf_notify+0x749/0xd60 [ 52.600035][ T10] notifier_call_chain+0xcd/0x150 [ 52.600202][ T10] __dev_notify_flags+0xe6/0x250 [ 52.600382][ T10] dev_change_flags+0xec/0x160 [ 52.600559][ T10] do_setlink+0x7d6/0x21e0 [ 52.600736][ T10] __rtnl_newlink+0xaa7/0xd80 [ 52.600931][ T10] rtnl_newlink+0x63/0xa0 [ 52.601204][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 52.601389][ T10] netlink_rcv_skb+0x130/0x360 [ 52.601596][ T10] netlink_unicast+0x449/0x710 [ 52.601788][ T10] netlink_sendmsg+0x723/0xbe0 [ 52.602066][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 52.602253][ T10] ___sys_sendmsg+0xee/0x170 [ 52.602445][ T10] __sys_sendmsg+0xcd/0x170 [ 52.602640][ T10] do_syscall_64+0xc6/0x1e0 [ 52.602828][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 52.603053][ T10] HARDIRQ-ON-R at: [ 52.603165][ T10] __lock_acquire+0x797/0x1570 [ 52.603349][ T10] lock_acquire.part.0+0xeb/0x330 [ 52.603536][ T10] _raw_read_lock_bh+0x44/0x80 [ 52.603822][ T10] inet6_fill_ifla6_attrs+0x516/0x740 [ 52.604007][ T10] inet6_fill_link_af+0x5e/0xe0 [ 52.604198][ T10] rtnl_fill_ifinfo+0x1612/0x29e0 [ 52.604380][ T10] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 52.604656][ T10] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 52.604881][ T10] rtmsg_ifinfo+0x5b/0xa0 [ 52.605076][ T10] register_netdevice+0x1177/0x1690 [ 52.605353][ T10] register_netdev+0x20/0x40 [ 52.605538][ T10] sit_init_net+0x250/0x4f0 [ 52.605744][ T10] ops_init+0x9b/0x560 [ 52.605893][ T10] register_pernet_operations+0x2db/0x710 [ 52.606204][ T10] register_pernet_device+0x2a/0x60 [ 52.606393][ T10] sit_init+0x23/0xe0 [ 52.606539][ T10] do_one_initcall+0x8d/0x1e0 [ 52.606729][ T10] do_initcalls+0x1b2/0x3e0 [ 52.606996][ T10] kernel_init_freeable+0x232/0x310 [ 52.607177][ T10] kernel_init+0x20/0x200 [ 52.607359][ T10] ret_from_fork+0x31/0x70 [ 52.607560][ T10] ret_from_fork_asm+0x1a/0x30 [ 52.607908][ T10] IN-SOFTIRQ-W at: [ 52.608020][ T10] __lock_acquire+0x797/0x1570 [ 52.608222][ T10] lock_acquire.part.0+0xeb/0x330 [ 52.608410][ T10] _raw_write_lock+0x30/0x40 [ 52.608685][ T10] addrconf_rs_timer+0xa9/0x730 [ 52.608880][ T10] call_timer_fn+0x13b/0x230 [ 52.609070][ T10] __run_timers+0x545/0x810 [ 52.609342][ T10] timer_expire_remote+0x9b/0xe0 [ 52.609529][ T10] tmigr_handle_remote_cpu+0x270/0x430 [ 52.609734][ T10] tmigr_handle_remote_up+0x19f/0x2e0 [ 52.609920][ T10] tmigr_handle_remote+0x21d/0x3a0 [ 52.610206][ T10] __do_softirq+0x1f8/0x5df [ 52.610392][ T10] irq_exit_rcu+0x97/0xc0 [ 52.610576][ T10] sysvec_apic_timer_interrupt+0x75/0x80 [ 52.610801][ T10] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 52.611031][ T10] default_idle+0xf/0x20 [ 52.611218][ T10] default_idle_call+0x6d/0xb0 [ 52.611410][ T10] cpuidle_idle_call+0x1f4/0x280 [ 52.611686][ T10] do_idle+0xf9/0x160 [ 52.611836][ T10] cpu_startup_entry+0x54/0x60 [ 52.612021][ T10] start_secondary+0x21c/0x2b0 [ 52.612209][ T10] common_startup_64+0x12c/0x138 [ 52.612486][ T10] IN-SOFTIRQ-R at: [ 52.612602][ T10] __lock_acquire+0x797/0x1570 [ 52.612788][ T10] lock_acquire.part.0+0xeb/0x330 [ 52.612975][ T10] _raw_read_lock_bh+0x44/0x80 [ 52.613262][ T10] ipv6_get_lladdr+0xa9/0x3e0 [ 52.613449][ T10] addrconf_rs_timer+0x24a/0x730 [ 52.613655][ T10] call_timer_fn+0x13b/0x230 [ 52.613849][ T10] __run_timers+0x545/0x810 [ 52.614037][ T10] timer_expire_remote+0x9b/0xe0 [ 52.614379][ T10] tmigr_handle_remote_cpu+0x270/0x430 [ 52.614566][ T10] tmigr_handle_remote_up+0x19f/0x2e0 [ 52.614748][ T10] tmigr_handle_remote+0x21d/0x3a0 [ 52.614931][ T10] __do_softirq+0x1f8/0x5df [ 52.615215][ T10] irq_exit_rcu+0x97/0xc0 [ 52.615396][ T10] sysvec_apic_timer_interrupt+0x75/0x80 [ 52.615614][ T10] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 52.615839][ T10] default_idle+0xf/0x20 [ 52.616023][ T10] default_idle_call+0x6d/0xb0 [ 52.616214][ T10] cpuidle_idle_call+0x1f4/0x280 [ 52.616401][ T10] do_idle+0xf9/0x160 [ 52.616557][ T10] cpu_startup_entry+0x54/0x60 [ 52.616739][ T10] start_secondary+0x21c/0x2b0 [ 52.616924][ T10] common_startup_64+0x12c/0x138 [ 52.617113][ T10] INITIAL USE at: [ 52.617226][ T10] __lock_acquire+0x797/0x1570 [ 52.617408][ T10] lock_acquire.part.0+0xeb/0x330 [ 52.617695][ T10] _raw_write_lock_bh+0x38/0x50 [ 52.617878][ T10] addrconf_permanent_addr+0x6e/0x670 [ 52.618066][ T10] addrconf_notify+0x749/0xd60 [ 52.618262][ T10] notifier_call_chain+0xcd/0x150 [ 52.618526][ T10] __dev_notify_flags+0xe6/0x250 [ 52.618710][ T10] dev_change_flags+0xec/0x160 [ 52.618982][ T10] do_setlink+0x7d6/0x21e0 [ 52.619161][ T10] __rtnl_newlink+0xaa7/0xd80 [ 52.619353][ T10] rtnl_newlink+0x63/0xa0 [ 52.619628][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 52.619812][ T10] netlink_rcv_skb+0x130/0x360 [ 52.620001][ T10] netlink_unicast+0x449/0x710 [ 52.620185][ T10] netlink_sendmsg+0x723/0xbe0 [ 52.620452][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 52.620648][ T10] ___sys_sendmsg+0xee/0x170 [ 52.620841][ T10] __sys_sendmsg+0xcd/0x170 [ 52.621024][ T10] do_syscall_64+0xc6/0x1e0 [ 52.621296][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 52.621518][ T10] INITIAL READ USE at: [ 52.621647][ T10] __lock_acquire+0x797/0x1570 [ 52.621836][ T10] lock_acquire.part.0+0xeb/0x330 [ 52.622115][ T10] _raw_read_lock_bh+0x44/0x80 [ 52.622297][ T10] inet6_fill_ifla6_attrs+0x516/0x740 [ 52.622515][ T10] inet6_fill_link_af+0x5e/0xe0 [ 52.622698][ T10] rtnl_fill_ifinfo+0x1612/0x29e0 [ 52.622886][ T10] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 52.623104][ T10] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 52.623326][ T10] rtmsg_ifinfo+0x5b/0xa0 [ 52.623597][ T10] register_netdevice+0x1177/0x1690 [ 52.623820][ T10] register_netdev+0x20/0x40 [ 52.624086][ T10] sit_init_net+0x250/0x4f0 [ 52.624355][ T10] ops_init+0x9b/0x560 [ 52.624541][ T10] register_pernet_operations+0x2db/0x710 [ 52.624761][ T10] register_pernet_device+0x2a/0x60 [ 52.624986][ T10] sit_init+0x23/0xe0 [ 52.625252][ T10] do_one_initcall+0x8d/0x1e0 [ 52.625442][ T10] do_initcalls+0x1b2/0x3e0 [ 52.625648][ T10] kernel_init_freeable+0x232/0x310 [ 52.625869][ T10] kernel_init+0x20/0x200 [ 52.626145][ T10] ret_from_fork+0x31/0x70 [ 52.626331][ T10] ret_from_fork_asm+0x1a/0x30 [ 52.626526][ T10] } [ 52.626602][ T10] ... key at: [] __key.37+0x0/0x40 [ 52.626830][ T10] [ 52.626830][ T10] the dependencies between the lock to be acquired [ 52.626832][ T10] and SOFTIRQ-irq-unsafe lock: [ 52.627220][ T10] -> (&p->alloc_lock){+.+.}-{2:2} { [ 52.627372][ T10] HARDIRQ-ON-W at: [ 52.627487][ T10] __lock_acquire+0x797/0x1570 [ 52.627759][ T10] lock_acquire.part.0+0xeb/0x330 [ 52.627946][ T10] _raw_spin_lock+0x30/0x40 [ 52.628143][ T10] set_mems_allowed+0x1d/0x210 [ 52.628340][ T10] kernel_init_freeable+0x72/0x310 [ 52.628631][ T10] kernel_init+0x20/0x200 [ 52.628820][ T10] ret_from_fork+0x31/0x70 [ 52.629010][ T10] ret_from_fork_asm+0x1a/0x30 [ 52.629200][ T10] SOFTIRQ-ON-W at: [ 52.629401][ T10] __lock_acquire+0x797/0x1570 [ 52.629631][ T10] lock_acquire.part.0+0xeb/0x330 [ 52.629818][ T10] _raw_spin_lock+0x30/0x40 [ 52.630078][ T10] set_mems_allowed+0x1d/0x210 [ 52.630267][ T10] kernel_init_freeable+0x72/0x310 [ 52.630451][ T10] kernel_init+0x20/0x200 [ 52.630720][ T10] ret_from_fork+0x31/0x70 [ 52.630908][ T10] ret_from_fork_asm+0x1a/0x30 [ 52.631099][ T10] INITIAL USE at: [ 52.631288][ T10] __lock_acquire+0x797/0x1570 [ 52.631474][ T10] lock_acquire.part.0+0xeb/0x330 [ 52.631661][ T10] _raw_spin_lock+0x30/0x40 [ 52.631934][ T10] set_mems_allowed+0x1d/0x210 [ 52.632121][ T10] kernel_init_freeable+0x72/0x310 [ 52.632302][ T10] kernel_init+0x20/0x200 [ 52.632487][ T10] ret_from_fork+0x31/0x70 [ 52.632761][ T10] ret_from_fork_asm+0x1a/0x30 [ 52.632954][ T10] } [ 52.633030][ T10] ... key at: [] __key.387+0x0/0x40 [ 52.633251][ T10] ... acquired at: [ 52.633435][ T10] check_prev_add+0x194/0xce0 [ 52.633627][ T10] validate_chain+0x71d/0x9b0 [ 52.633845][ T10] __lock_acquire+0xaf0/0x1570 [ 52.634000][ T10] lock_acquire.part.0+0xeb/0x330 [ 52.634219][ T10] _raw_spin_lock+0x30/0x40 [ 52.634549][ T10] __get_task_comm+0x27/0x70 [ 52.634781][ T10] ref_tracker_alloc+0x2ee/0x490 [ 52.634986][ T10] netdev_get_by_index+0x5e/0x80 [ 52.635200][ T10] fib6_nh_init+0x3d8/0x15b0 [ 52.635696][ T10] ip6_route_info_create+0xf18/0x17d0 [ 52.635925][ T10] addrconf_f6i_alloc+0x265/0x560 [ 52.636136][ T10] __ipv6_dev_ac_inc+0x25f/0xb10 [ 52.636370][ T10] addrconf_join_anycast+0x1c0/0x220 [ 52.636735][ T10] __ipv6_ifa_notify+0x6b3/0xaf0 [ 52.636952][ T10] addrconf_dad_completed+0x12b/0xe20 [ 52.637178][ T10] addrconf_dad_work+0x38c/0xab0 [ 52.637386][ T10] process_one_work+0xe2c/0x1730 [ 52.637756][ T10] worker_thread+0x587/0xd30 [ 52.637980][ T10] kthread+0x28a/0x350 [ 52.638153][ T10] ret_from_fork+0x31/0x70 [ 52.638520][ T10] ret_from_fork_asm+0x1a/0x30 [ 52.638731][ T10] [ 52.638983][ T10] [ 52.638983][ T10] stack backtrace: [ 52.639257][ T10] CPU: 1 PID: 10 Comm: kworker/u16:0 Not tainted 6.9.0-rc1-virtme #1 [ 52.639588][ T10] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 52.640222][ T10] Workqueue: ipv6_addrconf addrconf_dad_work [ 52.640497][ T10] Call Trace: [ 52.640661][ T10] [ 52.640776][ T10] dump_stack_lvl+0x82/0xd0 [ 52.641003][ T10] print_bad_irq_dependency+0x957/0xd40 [ 52.641212][ T10] ? __pfx_validate_chain+0x10/0x10 [ 52.641433][ T10] ? __pfx_print_bad_irq_dependency+0x10/0x10 [ 52.641694][ T10] ? __pfx_usage_skip+0x10/0x10 [ 52.641922][ T10] ? __bfs+0x246/0x650 [ 52.642086][ T10] ? __pfx_usage_match+0x10/0x10 [ 52.642303][ T10] check_irq_usage+0x596/0x850 [ 52.642516][ T10] ? __pfx_check_irq_usage+0x10/0x10 [ 52.642745][ T10] ? __bfs+0x246/0x650 [ 52.642901][ T10] ? __pfx_hlock_conflict+0x10/0x10 [ 52.643127][ T10] ? check_path.constprop.0+0x24/0x50 [ 52.643342][ T10] ? check_noncircular+0x14c/0x3e0 [ 52.643569][ T10] ? __pfx_check_noncircular+0x10/0x10 [ 52.643786][ T10] ? check_prev_add+0x194/0xce0 [ 52.644002][ T10] check_prev_add+0x194/0xce0 [ 52.644213][ T10] ? validate_chain+0x130/0x9b0 [ 52.644430][ T10] validate_chain+0x71d/0x9b0 [ 52.644654][ T10] ? mark_lock+0x38/0x3e0 [ 52.645109][ T10] ? __pfx_validate_chain+0x10/0x10 [ 52.645329][ T10] ? hlock_class+0x4e/0x130 [ 52.645543][ T10] ? mark_lock+0x38/0x3e0 [ 52.645705][ T10] __lock_acquire+0xaf0/0x1570 [ 52.645922][ T10] lock_acquire.part.0+0xeb/0x330 [ 52.646135][ T10] ? __get_task_comm+0x27/0x70 [ 52.646351][ T10] ? mark_lock+0x38/0x3e0 [ 52.646516][ T10] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 52.646732][ T10] ? trace_lock_acquire+0x135/0x1c0 [ 52.646954][ T10] ? __get_task_comm+0x27/0x70 [ 52.647167][ T10] ? lock_acquire+0x32/0xc0 [ 52.647377][ T10] ? __get_task_comm+0x27/0x70 [ 52.647599][ T10] _raw_spin_lock+0x30/0x40 [ 52.647812][ T10] ? __get_task_comm+0x27/0x70 [ 52.648028][ T10] __get_task_comm+0x27/0x70 [ 52.648250][ T10] ref_tracker_alloc+0x2ee/0x490 [ 52.648469][ T10] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 52.648831][ T10] ? dev_get_by_index+0x177/0x270 [ 52.649059][ T10] ? netdev_get_by_index+0x5e/0x80 [ 52.649277][ T10] ? fib6_nh_init+0x3d8/0x15b0 [ 52.649498][ T10] ? ip6_route_info_create+0xf18/0x17d0 [ 52.649713][ T10] ? addrconf_f6i_alloc+0x265/0x560 [ 52.650065][ T10] ? __ipv6_dev_ac_inc+0x25f/0xb10 [ 52.650285][ T10] ? addrconf_join_anycast+0x1c0/0x220 [ 52.650497][ T10] ? __ipv6_ifa_notify+0x6b3/0xaf0 [ 52.650718][ T10] ? addrconf_dad_completed+0x12b/0xe20 [ 52.651067][ T10] ? addrconf_dad_work+0x38c/0xab0 [ 52.651293][ T10] ? process_one_work+0xe2c/0x1730 [ 52.651503][ T10] ? worker_thread+0x587/0xd30 [ 52.651724][ T10] ? kthread+0x28a/0x350 [ 52.651882][ T10] ? ret_from_fork+0x31/0x70 [ 52.652088][ T10] ? ret_from_fork_asm+0x1a/0x30 [ 52.652300][ T10] ? dev_get_by_index+0x177/0x270 [ 52.652506][ T10] netdev_get_by_index+0x5e/0x80 [ 52.652729][ T10] fib6_nh_init+0x3d8/0x15b0 [ 52.652948][ T10] ? lockdep_hardirqs_on_prepare.part.0+0x14f/0x370 [ 52.653218][ T10] ? __pfx_fib6_nh_init+0x10/0x10 [ 52.653423][ T10] ? kasan_save_track+0x14/0x30 [ 52.653631][ T10] ? __kasan_kmalloc+0x7f/0x90 [ 52.653834][ T10] ? __kmalloc+0x1d7/0x3c0 [ 52.654040][ T10] ? fib6_get_table+0x116/0x290 [ 52.654248][ T10] ip6_route_info_create+0xf18/0x17d0 [ 52.654454][ T10] ? __lock_release+0x103/0x460 [ 52.654798][ T10] ? __pfx_ip6_route_info_create+0x10/0x10 [ 52.655061][ T10] ? addrconf_f6i_alloc+0x12d/0x560 [ 52.655268][ T10] addrconf_f6i_alloc+0x265/0x560 [ 52.655475][ T10] ? __pfx_addrconf_f6i_alloc+0x10/0x10 [ 52.655832][ T10] ? do_raw_write_lock+0x122/0x3b0 [ 52.656046][ T10] ? __pfx_do_raw_write_lock+0x10/0x10 [ 52.656260][ T10] ? lock_acquire+0x32/0xc0 [ 52.656466][ T10] __ipv6_dev_ac_inc+0x25f/0xb10 [ 52.656802][ T10] ? mark_held_locks+0x9e/0xe0 [ 52.657016][ T10] addrconf_join_anycast+0x1c0/0x220 [ 52.657220][ T10] ? ip6_ins_rt+0xbd/0x110 [ 52.657422][ T10] ? __pfx_addrconf_join_anycast+0x10/0x10 [ 52.657809][ T10] __ipv6_ifa_notify+0x6b3/0xaf0 [ 52.658012][ T10] ? __pfx___ipv6_ifa_notify+0x10/0x10 [ 52.658230][ T10] ? __pfx___cancel_work+0x10/0x10 [ 52.658437][ T10] ? find_held_lock+0x2c/0x110 [ 52.658774][ T10] ? addrconf_dad_completed+0x12b/0xe20 [ 52.658984][ T10] addrconf_dad_completed+0x12b/0xe20 [ 52.659193][ T10] ? hlock_class+0x4e/0x130 [ 52.659410][ T10] ? __pfx_addrconf_dad_completed+0x10/0x10 [ 52.659809][ T10] ? mark_held_locks+0x9e/0xe0 [ 52.660026][ T10] ? addrconf_dad_work+0x38c/0xab0 [ 52.660239][ T10] addrconf_dad_work+0x38c/0xab0 [ 52.660455][ T10] ? __pfx_addrconf_dad_work+0x10/0x10 [ 52.660676][ T10] ? process_one_work+0xde2/0x1730 [ 52.661179][ T10] ? lock_acquire+0x32/0xc0 [ 52.661392][ T10] ? process_one_work+0xde2/0x1730 [ 52.661611][ T10] process_one_work+0xe2c/0x1730 [ 52.661841][ T10] ? __pfx___lock_release+0x10/0x10 [ 52.662063][ T10] ? __pfx_process_one_work+0x10/0x10 [ 52.662290][ T10] ? assign_work+0x16c/0x240 [ 52.662505][ T10] worker_thread+0x587/0xd30 [ 52.662729][ T10] ? __pfx_worker_thread+0x10/0x10 [ 52.662944][ T10] kthread+0x28a/0x350 [ 52.663107][ T10] ? __pfx_kthread+0x10/0x10 [ 52.663322][ T10] ret_from_fork+0x31/0x70 [ 52.663538][ T10] ? __pfx_kthread+0x10/0x10 [ 52.663753][ T10] ret_from_fork_asm+0x1a/0x30 [ 52.663979][ T10]