[ 40.419939][ T311] ip (311) used greatest stack depth: 23664 bytes left [ 200.532148][ T1187] ip (1187) used greatest stack depth: 23392 bytes left [ 1021.953986][ C3] [ 1021.954142][ C3] ======================================================== [ 1021.954427][ C3] WARNING: possible irq lock inversion dependency detected [ 1021.954711][ C3] 6.9.0-rc1-virtme #1 Not tainted [ 1021.954909][ C3] -------------------------------------------------------- [ 1021.955165][ C3] ping/8983 just changed the state of lock: [ 1021.955386][ C3] ffff8880155eed80 (&ndev->lock){++.-}-{2:2}, at: ipv6_get_lladdr+0xa9/0x3e0 [ 1021.955710][ C3] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 1021.955965][ C3] (&p->alloc_lock){+.+.}-{2:2} [ 1021.955970][ C3] [ 1021.955970][ C3] [ 1021.955970][ C3] and interrupts could create inverse lock ordering between them. [ 1021.955970][ C3] [ 1021.956658][ C3] [ 1021.956658][ C3] other info that might help us debug this: [ 1021.956922][ C3] Possible interrupt unsafe locking scenario: [ 1021.956922][ C3] [ 1021.957178][ C3] CPU0 CPU1 [ 1021.957345][ C3] ---- ---- [ 1021.957505][ C3] lock(&p->alloc_lock); [ 1021.957627][ C3] local_irq_disable(); [ 1021.957820][ C3] lock(&ndev->lock); [ 1021.958038][ C3] lock(&p->alloc_lock); [ 1021.958233][ C3] [ 1021.958350][ C3] lock(&ndev->lock); [ 1021.958476][ C3] [ 1021.958476][ C3] *** DEADLOCK *** [ 1021.958476][ C3] [ 1021.958709][ C3] 5 locks held by ping/8983: [ 1021.958865][ C3] #0: ffff8880081aeb98 (sk_lock-AF_INET6){+.+.}-{0:0}, at: rawv6_sendmsg+0xd17/0x17d0 [ 1021.959146][ C3] #1: ffffffffa8f66360 (rcu_read_lock){....}-{1:2}, at: ip6_finish_output2+0x32b/0xf60 [ 1021.959428][ C3] #2: ffffffffa8f66360 (rcu_read_lock){....}-{1:2}, at: process_backlog+0x1f8/0x670 [ 1021.959715][ C3] #3: ffffffffa8f66360 (rcu_read_lock){....}-{1:2}, at: ip6_finish_output2+0x32b/0xf60 [ 1021.959991][ C3] #4: ffffffffa8f66360 (rcu_read_lock){....}-{1:2}, at: ipv6_get_lladdr+0x39/0x3e0 [ 1021.960269][ C3] [ 1021.960269][ C3] the shortest dependencies between 2nd lock and 1st lock: [ 1021.960539][ C3] -> (&p->alloc_lock){+.+.}-{2:2} { [ 1021.960706][ C3] HARDIRQ-ON-W at: [ 1021.960830][ C3] __lock_acquire+0x797/0x1570 [ 1021.961039][ C3] lock_acquire.part.0+0xeb/0x330 [ 1021.961249][ C3] _raw_spin_lock+0x30/0x40 [ 1021.961451][ C3] set_mems_allowed+0x1d/0x210 [ 1021.961649][ C3] kernel_init_freeable+0x72/0x310 [ 1021.961848][ C3] kernel_init+0x20/0x200 [ 1021.962052][ C3] ret_from_fork+0x31/0x70 [ 1021.962281][ C3] ret_from_fork_asm+0x1a/0x30 [ 1021.962513][ C3] SOFTIRQ-ON-W at: [ 1021.962633][ C3] __lock_acquire+0x797/0x1570 [ 1021.962831][ C3] lock_acquire.part.0+0xeb/0x330 [ 1021.963058][ C3] _raw_spin_lock+0x30/0x40 [ 1021.963266][ C3] set_mems_allowed+0x1d/0x210 [ 1021.963488][ C3] kernel_init_freeable+0x72/0x310 [ 1021.963700][ C3] kernel_init+0x20/0x200 [ 1021.963908][ C3] ret_from_fork+0x31/0x70 [ 1021.964135][ C3] ret_from_fork_asm+0x1a/0x30 [ 1021.964334][ C3] INITIAL USE at: [ 1021.964475][ C3] __lock_acquire+0x797/0x1570 [ 1021.964688][ C3] lock_acquire.part.0+0xeb/0x330 [ 1021.964887][ C3] _raw_spin_lock+0x30/0x40 [ 1021.965127][ C3] set_mems_allowed+0x1d/0x210 [ 1021.965326][ C3] kernel_init_freeable+0x72/0x310 [ 1021.965542][ C3] kernel_init+0x20/0x200 [ 1021.965754][ C3] ret_from_fork+0x31/0x70 [ 1021.965989][ C3] ret_from_fork_asm+0x1a/0x30 [ 1021.966188][ C3] } [ 1021.966281][ C3] ... key at: [] __key.388+0x0/0x40 [ 1021.966557][ C3] ... acquired at: [ 1021.966689][ C3] __lock_acquire+0xaf0/0x1570 [ 1021.966850][ C3] lock_acquire.part.0+0xeb/0x330 [ 1021.967031][ C3] _raw_spin_lock+0x30/0x40 [ 1021.967194][ C3] __get_task_comm+0x27/0x70 [ 1021.967386][ C3] ref_tracker_alloc+0x2ee/0x490 [ 1021.967602][ C3] netdev_get_by_index+0x5e/0x80 [ 1021.967759][ C3] fib6_nh_init+0x3d8/0x1580 [ 1021.967917][ C3] ip6_route_info_create+0xf18/0x17d0 [ 1021.968080][ C3] addrconf_f6i_alloc+0x265/0x560 [ 1021.968262][ C3] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1021.968453][ C3] addrconf_join_anycast+0x1c0/0x220 [ 1021.968656][ C3] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1021.968837][ C3] addrconf_dad_completed+0x12b/0xe20 [ 1021.968993][ C3] addrconf_dad_begin+0x310/0x670 [ 1021.969182][ C3] addrconf_dad_work+0x10b/0xab0 [ 1021.969346][ C3] process_one_work+0xe2c/0x1730 [ 1021.969544][ C3] worker_thread+0x587/0xd30 [ 1021.969832][ C3] kthread+0x28a/0x350 [ 1021.969960][ C3] ret_from_fork+0x31/0x70 [ 1021.970128][ C3] ret_from_fork_asm+0x1a/0x30 [ 1021.970338][ C3] [ 1021.970418][ C3] -> (&ndev->lock){++.-}-{2:2} { [ 1021.970733][ C3] HARDIRQ-ON-W at: [ 1021.970865][ C3] __lock_acquire+0x797/0x1570 [ 1021.971066][ C3] lock_acquire.part.0+0xeb/0x330 [ 1021.971330][ C3] _raw_write_lock_bh+0x38/0x50 [ 1021.971666][ C3] addrconf_permanent_addr+0x6e/0x670 [ 1021.971911][ C3] addrconf_notify+0x749/0xd60 [ 1021.972135][ C3] notifier_call_chain+0xcd/0x150 [ 1021.972481][ C3] __dev_notify_flags+0xe6/0x250 [ 1021.972680][ C3] dev_change_flags+0xec/0x160 [ 1021.972875][ C3] do_setlink+0x7d6/0x21e0 [ 1021.973075][ C3] __rtnl_newlink+0xaa7/0xd80 [ 1021.973557][ C3] rtnl_newlink+0x63/0xa0 [ 1021.973776][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1021.973993][ C3] netlink_rcv_skb+0x130/0x360 [ 1021.974325][ C3] netlink_unicast+0x449/0x710 [ 1021.974523][ C3] netlink_sendmsg+0x723/0xbe0 [ 1021.974770][ C3] ____sys_sendmsg+0x7b2/0xa10 [ 1021.975094][ C3] ___sys_sendmsg+0xee/0x170 [ 1021.975318][ C3] __sys_sendmsg+0xcd/0x170 [ 1021.975534][ C3] do_syscall_64+0xc6/0x1e0 [ 1021.975765][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1021.976141][ C3] HARDIRQ-ON-R at: [ 1021.976264][ C3] __lock_acquire+0x797/0x1570 [ 1021.976485][ C3] lock_acquire.part.0+0xeb/0x330 [ 1021.976725][ C3] _raw_read_lock_bh+0x44/0x80 [ 1021.976934][ C3] inet6_fill_ifla6_attrs+0x516/0x740 [ 1021.977152][ C3] inet6_fill_link_af+0x5e/0xe0 [ 1021.977347][ C3] rtnl_fill_ifinfo+0x1615/0x2a90 [ 1021.977647][ C3] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 1021.977846][ C3] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 1021.978090][ C3] rtmsg_ifinfo+0x5b/0xa0 [ 1021.978419][ C3] register_netdevice+0x1177/0x1690 [ 1021.978617][ C3] register_netdev+0x20/0x40 [ 1021.978836][ C3] vti6_init_net+0x25d/0x380 [ 1021.979181][ C3] ops_init+0x9b/0x560 [ 1021.979346][ C3] register_pernet_operations+0x2db/0x710 [ 1021.979587][ C3] register_pernet_device+0x2a/0x60 [ 1021.979809][ C3] vti6_tunnel_init+0x18/0x110 [ 1021.980134][ C3] do_one_initcall+0x8d/0x1e0 [ 1021.980331][ C3] do_initcalls+0x1b2/0x3e0 [ 1021.980537][ C3] kernel_init_freeable+0x232/0x310 [ 1021.980745][ C3] kernel_init+0x20/0x200 [ 1021.980947][ C3] ret_from_fork+0x31/0x70 [ 1021.981165][ C3] ret_from_fork_asm+0x1a/0x30 [ 1021.981363][ C3] IN-SOFTIRQ-R at: [ 1021.981580][ C3] __lock_acquire+0x797/0x1570 [ 1021.981802][ C3] lock_acquire.part.0+0xeb/0x330 [ 1021.982000][ C3] _raw_read_lock_bh+0x44/0x80 [ 1021.982325][ C3] ipv6_get_lladdr+0xa9/0x3e0 [ 1021.982570][ C3] ndisc_send_ns+0xe7/0x100 [ 1021.982772][ C3] ndisc_solicit+0x2ae/0x4d0 [ 1021.982970][ C3] neigh_probe+0xaa/0xf0 [ 1021.983309][ C3] __neigh_event_send+0x7af/0xfe0 [ 1021.983534][ C3] neigh_resolve_output+0x470/0x7c0 [ 1021.983776][ C3] ip6_finish_output2+0x512/0xf60 [ 1021.984122][ C3] ip6_finish_output+0x553/0xdf0 [ 1021.984348][ C3] ip6_output+0x1f3/0x770 [ 1021.984549][ C3] ip6_forward+0xf29/0x2980 [ 1021.984781][ C3] ipv6_rcv+0x626/0x810 [ 1021.985098][ C3] __netif_receive_skb_one_core+0x118/0x1b0 [ 1021.985359][ C3] process_backlog+0x103/0x670 [ 1021.985580][ C3] __napi_poll.constprop.0+0xa2/0x460 [ 1021.985796][ C3] net_rx_action+0x49f/0xc00 [ 1021.985999][ C3] __do_softirq+0x1f8/0x5df [ 1021.986227][ C3] do_softirq+0x4d/0xa0 [ 1021.986651][ C3] __local_bh_enable_ip+0xf6/0x120 [ 1021.986856][ C3] __neigh_event_send+0x2e4/0xfe0 [ 1021.987079][ C3] neigh_resolve_output+0x470/0x7c0 [ 1021.987317][ C3] ip6_finish_output2+0x512/0xf60 [ 1021.987650][ C3] ip6_finish_output+0x553/0xdf0 [ 1021.987871][ C3] ip6_output+0x1f3/0x770 [ 1021.988070][ C3] ip6_send_skb+0xbd/0x280 [ 1021.988403][ C3] rawv6_push_pending_frames+0x518/0x9d0 [ 1021.988649][ C3] rawv6_sendmsg+0x1287/0x17d0 [ 1021.988857][ C3] __sys_sendto+0x332/0x410 [ 1021.989182][ C3] __x64_sys_sendto+0xe0/0x1c0 [ 1021.989389][ C3] do_syscall_64+0xc6/0x1e0 [ 1021.989611][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1021.989974][ C3] INITIAL USE at: [ 1021.990094][ C3] __lock_acquire+0x797/0x1570 [ 1021.990302][ C3] lock_acquire.part.0+0xeb/0x330 [ 1021.990526][ C3] _raw_write_lock_bh+0x38/0x50 [ 1021.990734][ C3] addrconf_permanent_addr+0x6e/0x670 [ 1021.990956][ C3] addrconf_notify+0x749/0xd60 [ 1021.991174][ C3] notifier_call_chain+0xcd/0x150 [ 1021.991395][ C3] __dev_notify_flags+0xe6/0x250 [ 1021.991693][ C3] dev_change_flags+0xec/0x160 [ 1021.991912][ C3] do_setlink+0x7d6/0x21e0 [ 1021.992126][ C3] __rtnl_newlink+0xaa7/0xd80 [ 1021.992486][ C3] rtnl_newlink+0x63/0xa0 [ 1021.992714][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1021.992910][ C3] netlink_rcv_skb+0x130/0x360 [ 1021.993227][ C3] netlink_unicast+0x449/0x710 [ 1021.993444][ C3] netlink_sendmsg+0x723/0xbe0 [ 1021.993673][ C3] ____sys_sendmsg+0x7b2/0xa10 [ 1021.993875][ C3] ___sys_sendmsg+0xee/0x170 [ 1021.994195][ C3] __sys_sendmsg+0xcd/0x170 [ 1021.994414][ C3] do_syscall_64+0xc6/0x1e0 [ 1021.994627][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1021.994979][ C3] INITIAL READ USE at: [ 1021.995098][ C3] __lock_acquire+0x797/0x1570 [ 1021.995327][ C3] lock_acquire.part.0+0xeb/0x330 [ 1021.995535][ C3] _raw_read_lock_bh+0x44/0x80 [ 1021.995750][ C3] inet6_fill_ifla6_attrs+0x516/0x740 [ 1021.995986][ C3] inet6_fill_link_af+0x5e/0xe0 [ 1021.996183][ C3] rtnl_fill_ifinfo+0x1615/0x2a90 [ 1021.996481][ C3] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 1021.996724][ C3] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 1021.996962][ C3] rtmsg_ifinfo+0x5b/0xa0 [ 1021.997259][ C3] register_netdevice+0x1177/0x1690 [ 1021.997492][ C3] register_netdev+0x20/0x40 [ 1021.997689][ C3] vti6_init_net+0x25d/0x380 [ 1021.997989][ C3] ops_init+0x9b/0x560 [ 1021.998190][ C3] register_pernet_operations+0x2db/0x710 [ 1021.998425][ C3] register_pernet_device+0x2a/0x60 [ 1021.998660][ C3] vti6_tunnel_init+0x18/0x110 [ 1021.998856][ C3] do_one_initcall+0x8d/0x1e0 [ 1021.999059][ C3] do_initcalls+0x1b2/0x3e0 [ 1021.999256][ C3] kernel_init_freeable+0x232/0x310 [ 1021.999702][ C3] kernel_init+0x20/0x200 [ 1021.999899][ C3] ret_from_fork+0x31/0x70 [ 1022.000099][ C3] ret_from_fork_asm+0x1a/0x30 [ 1022.000398][ C3] } [ 1022.000479][ C3] ... key at: [] __key.37+0x0/0x40 [ 1022.000713][ C3] ... acquired at: [ 1022.000831][ C3] mark_lock+0x28d/0x3e0 [ 1022.001098][ C3] mark_usage+0xd9/0x2a0 [ 1022.001353][ C3] __lock_acquire+0x797/0x1570 [ 1022.001512][ C3] lock_acquire.part.0+0xeb/0x330 [ 1022.001685][ C3] _raw_read_lock_bh+0x44/0x80 [ 1022.001842][ C3] ipv6_get_lladdr+0xa9/0x3e0 [ 1022.002029][ C3] ndisc_send_ns+0xe7/0x100 [ 1022.002196][ C3] ndisc_solicit+0x2ae/0x4d0 [ 1022.002368][ C3] neigh_probe+0xaa/0xf0 [ 1022.002568][ C3] __neigh_event_send+0x7af/0xfe0 [ 1022.002846][ C3] neigh_resolve_output+0x470/0x7c0 [ 1022.003026][ C3] ip6_finish_output2+0x512/0xf60 [ 1022.003183][ C3] ip6_finish_output+0x553/0xdf0 [ 1022.003361][ C3] ip6_output+0x1f3/0x770 [ 1022.003670][ C3] ip6_forward+0xf29/0x2980 [ 1022.003825][ C3] ipv6_rcv+0x626/0x810 [ 1022.003946][ C3] __netif_receive_skb_one_core+0x118/0x1b0 [ 1022.004145][ C3] process_backlog+0x103/0x670 [ 1022.004400][ C3] __napi_poll.constprop.0+0xa2/0x460 [ 1022.004557][ C3] net_rx_action+0x49f/0xc00 [ 1022.004738][ C3] __do_softirq+0x1f8/0x5df [ 1022.004897][ C3] do_softirq+0x4d/0xa0 [ 1022.005036][ C3] __local_bh_enable_ip+0xf6/0x120 [ 1022.005305][ C3] __neigh_event_send+0x2e4/0xfe0 [ 1022.005468][ C3] neigh_resolve_output+0x470/0x7c0 [ 1022.005660][ C3] ip6_finish_output2+0x512/0xf60 [ 1022.005834][ C3] ip6_finish_output+0x553/0xdf0 [ 1022.006123][ C3] ip6_output+0x1f3/0x770 [ 1022.006299][ C3] ip6_send_skb+0xbd/0x280 [ 1022.006453][ C3] rawv6_push_pending_frames+0x518/0x9d0 [ 1022.006649][ C3] rawv6_sendmsg+0x1287/0x17d0 [ 1022.006905][ C3] __sys_sendto+0x332/0x410 [ 1022.007067][ C3] __x64_sys_sendto+0xe0/0x1c0 [ 1022.007233][ C3] do_syscall_64+0xc6/0x1e0 [ 1022.007395][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1022.007686][ C3] [ 1022.007786][ C3] [ 1022.007786][ C3] stack backtrace: [ 1022.007983][ C3] CPU: 3 PID: 8983 Comm: ping Not tainted 6.9.0-rc1-virtme #1 [ 1022.008258][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1022.008752][ C3] Call Trace: [ 1022.008899][ C3] [ 1022.008981][ C3] dump_stack_lvl+0x82/0xd0 [ 1022.009171][ C3] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 1022.009472][ C3] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 1022.009676][ C3] ? __pfx_usage_skip+0x10/0x10 [ 1022.009834][ C3] ? __pfx_usage_match+0x10/0x10 [ 1022.010095][ C3] ? arch_stack_walk+0xa2/0xf0 [ 1022.010254][ C3] mark_lock_irq+0x4cd/0xa10 [ 1022.010421][ C3] ? __pfx_mark_lock_irq+0x10/0x10 [ 1022.010583][ C3] ? stack_trace_save+0x94/0xd0 [ 1022.010746][ C3] ? save_trace+0x8f/0x5b0 [ 1022.011005][ C3] mark_lock+0x28d/0x3e0 [ 1022.011125][ C3] mark_usage+0xd9/0x2a0 [ 1022.011258][ C3] __lock_acquire+0x797/0x1570 [ 1022.011418][ C3] lock_acquire.part.0+0xeb/0x330 [ 1022.011672][ C3] ? ipv6_get_lladdr+0xa9/0x3e0 [ 1022.011828][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1022.011993][ C3] ? trace_lock_acquire+0x135/0x1c0 [ 1022.012156][ C3] ? ipv6_get_lladdr+0xa9/0x3e0 [ 1022.012362][ C3] ? lock_acquire+0x32/0xc0 [ 1022.012753][ C3] ? ipv6_get_lladdr+0xa9/0x3e0 [ 1022.012922][ C3] _raw_read_lock_bh+0x44/0x80 [ 1022.013082][ C3] ? ipv6_get_lladdr+0xa9/0x3e0 [ 1022.013273][ C3] ipv6_get_lladdr+0xa9/0x3e0 [ 1022.013557][ C3] ndisc_send_ns+0xe7/0x100 [ 1022.013719][ C3] ? __pfx_ndisc_send_ns+0x10/0x10 [ 1022.013911][ C3] ? __ipv6_chk_addr_and_flags+0x393/0x650 [ 1022.014110][ C3] ndisc_solicit+0x2ae/0x4d0 [ 1022.014397][ C3] ? __pfx_ndisc_solicit+0x10/0x10 [ 1022.014575][ C3] ? neigh_probe+0x57/0xf0 [ 1022.014758][ C3] neigh_probe+0xaa/0xf0 [ 1022.014878][ C3] __neigh_event_send+0x7af/0xfe0 [ 1022.015181][ C3] neigh_resolve_output+0x470/0x7c0 [ 1022.015376][ C3] ? __local_bh_enable_ip+0xa6/0x120 [ 1022.015540][ C3] ? ___neigh_create+0x7c6/0xe10 [ 1022.015702][ C3] ip6_finish_output2+0x512/0xf60 [ 1022.015861][ C3] ip6_finish_output+0x553/0xdf0 [ 1022.016129][ C3] ip6_output+0x1f3/0x770 [ 1022.016277][ C3] ? __pfx_ip6_output+0x10/0x10 [ 1022.016435][ C3] ? ip6_dst_mtu_maybe_forward.constprop.0+0x189/0x3c0 [ 1022.016631][ C3] ip6_forward+0xf29/0x2980 [ 1022.016786][ C3] ? ip6_route_input+0x5a4/0xa50 [ 1022.016971][ C3] ? __pfx_ip6_forward+0x10/0x10 [ 1022.017136][ C3] ? ip6_rcv_core+0x9e5/0x1ae0 [ 1022.017292][ C3] ? ipv6_rcv+0x626/0x810 [ 1022.017511][ C3] ipv6_rcv+0x626/0x810 [ 1022.017653][ C3] ? __pfx_ipv6_rcv+0x10/0x10 [ 1022.017811][ C3] ? lock_acquire.part.0+0xeb/0x330 [ 1022.017973][ C3] ? process_backlog+0x1f8/0x670 [ 1022.018170][ C3] ? __pfx_ipv6_rcv+0x10/0x10 [ 1022.018425][ C3] __netif_receive_skb_one_core+0x118/0x1b0 [ 1022.018655][ C3] ? __pfx___netif_receive_skb_one_core+0x10/0x10 [ 1022.018879][ C3] ? process_backlog+0x1f8/0x670 [ 1022.019047][ C3] ? lock_acquire+0x32/0xc0 [ 1022.019339][ C3] ? process_backlog+0x1f8/0x670 [ 1022.019529][ C3] process_backlog+0x103/0x670 [ 1022.019686][ C3] ? find_held_lock+0x2c/0x110 [ 1022.019844][ C3] __napi_poll.constprop.0+0xa2/0x460 [ 1022.020120][ C3] net_rx_action+0x49f/0xc00 [ 1022.020301][ C3] ? __pfx_net_rx_action+0x10/0x10 [ 1022.020465][ C3] ? usage_skip+0x150/0x190 [ 1022.020624][ C3] ? mark_held_locks+0x9e/0xe0 [ 1022.020884][ C3] __do_softirq+0x1f8/0x5df [ 1022.021042][ C3] ? __neigh_event_send+0x2df/0xfe0 [ 1022.021210][ C3] do_softirq+0x4d/0xa0 [ 1022.021333][ C3] [ 1022.021414][ C3] [ 1022.021494][ C3] __local_bh_enable_ip+0xf6/0x120 [ 1022.021749][ C3] __neigh_event_send+0x2e4/0xfe0 [ 1022.021911][ C3] neigh_resolve_output+0x470/0x7c0 [ 1022.022072][ C3] ? __local_bh_enable_ip+0xa6/0x120 [ 1022.022227][ C3] ? ___neigh_create+0x7c6/0xe10 [ 1022.022486][ C3] ip6_finish_output2+0x512/0xf60 [ 1022.022645][ C3] ip6_finish_output+0x553/0xdf0 [ 1022.022800][ C3] ip6_output+0x1f3/0x770 [ 1022.022917][ C3] ? __pfx___ip6_make_skb+0x10/0x10 [ 1022.023174][ C3] ? __pfx_ip6_output+0x10/0x10 [ 1022.023331][ C3] ? ip6_local_out+0x25/0x3b0 [ 1022.023493][ C3] ip6_send_skb+0xbd/0x280 [ 1022.023660][ C3] rawv6_push_pending_frames+0x518/0x9d0 [ 1022.023817][ C3] ? __pfx_raw6_getfrag+0x10/0x10 [ 1022.024078][ C3] ? ip6_append_data+0x185/0x540 [ 1022.024234][ C3] ? __pfx_rawv6_push_pending_frames+0x10/0x10 [ 1022.024440][ C3] rawv6_sendmsg+0x1287/0x17d0 [ 1022.024596][ C3] ? __pfx_validate_chain+0x10/0x10 [ 1022.024755][ C3] ? __pfx_rawv6_sendmsg+0x10/0x10 [ 1022.024915][ C3] ? __lock_acquire+0xaf0/0x1570 [ 1022.025075][ C3] ? hlock_class+0x4e/0x130 [ 1022.025232][ C3] ? find_held_lock+0x2c/0x110 [ 1022.025586][ C3] ? __might_fault+0x11b/0x170 [ 1022.025753][ C3] ? lock_acquire+0x32/0xc0 [ 1022.025909][ C3] ? __might_fault+0xc3/0x170 [ 1022.026067][ C3] ? __might_fault+0x11b/0x170 [ 1022.026324][ C3] ? __sys_sendto+0x332/0x410 [ 1022.026481][ C3] __sys_sendto+0x332/0x410 [ 1022.026643][ C3] ? __pfx___sys_sendto+0x10/0x10 [ 1022.026808][ C3] ? find_held_lock+0x2c/0x110 [ 1022.027065][ C3] ? __might_fault+0xc3/0x170 [ 1022.027259][ C3] ? lock_acquire+0x32/0xc0 [ 1022.027422][ C3] ? __might_fault+0xc3/0x170 [ 1022.027603][ C3] ? trace_rseq_update+0xd2/0x130 [ 1022.027765][ C3] ? __rseq_handle_notify_resume+0x354/0x4e0 [ 1022.028086][ C3] ? __pfx___rseq_handle_notify_resume+0x10/0x10 [ 1022.028308][ C3] __x64_sys_sendto+0xe0/0x1c0 [ 1022.028469][ C3] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 1022.028674][ C3] do_syscall_64+0xc6/0x1e0 [ 1022.028860][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1022.029076][ C3] RIP: 0033:0x7f352a71d85a [ 1022.029276][ C3] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89 [ 1022.029987][ C3] RSP: 002b:00007ffd46518eb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 1022.030375][ C3] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007f352a71d85a [ 1022.030611][ C3] RDX: 0000000000000040 RSI: 0000000018e9e340 RDI: 0000000000000006 [ 1022.030852][ C3] RBP: 00007ffd46518f40 R08: 0000000000418574 R09: 000000000000001c [ 1022.031211][ C3] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000419ac0 [ 1022.031457][ C3] R13: 000000000040305a R14: 0000000000415dd0 R15: 00007f352a843000 [ 1022.031695][ C3]