[ 27.301646][ T243] ip (243) used greatest stack depth: 23968 bytes left [ 1009.180758][ C1] [ 1009.180895][ C1] ======================================================== [ 1009.181127][ C1] WARNING: possible irq lock inversion dependency detected [ 1009.181359][ C1] 6.9.0-rc1-virtme #1 Not tainted [ 1009.181516][ C1] -------------------------------------------------------- [ 1009.181750][ C1] ping/9070 just changed the state of lock: [ 1009.181993][ C1] ffff888004dd2580 (&ndev->lock){++.-}-{2:2}, at: ipv6_get_lladdr+0xa9/0x3e0 [ 1009.182301][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 1009.182536][ C1] (&p->alloc_lock){+.+.}-{2:2} [ 1009.182541][ C1] [ 1009.182541][ C1] [ 1009.182541][ C1] and interrupts could create inverse lock ordering between them. [ 1009.182541][ C1] [ 1009.183125][ C1] [ 1009.183125][ C1] other info that might help us debug this: [ 1009.183359][ C1] Possible interrupt unsafe locking scenario: [ 1009.183359][ C1] [ 1009.183587][ C1] CPU0 CPU1 [ 1009.183741][ C1] ---- ---- [ 1009.183903][ C1] lock(&p->alloc_lock); [ 1009.184022][ C1] local_irq_disable(); [ 1009.184215][ C1] lock(&ndev->lock); [ 1009.184418][ C1] lock(&p->alloc_lock); [ 1009.184610][ C1] [ 1009.184732][ C1] lock(&ndev->lock); [ 1009.184852][ C1] [ 1009.184852][ C1] *** DEADLOCK *** [ 1009.184852][ C1] [ 1009.185088][ C1] 5 locks held by ping/9070: [ 1009.185251][ C1] #0: ffff88800620dc98 (sk_lock-AF_INET6){+.+.}-{0:0}, at: rawv6_sendmsg+0xd17/0x17d0 [ 1009.185530][ C1] #1: ffffffff86166360 (rcu_read_lock){....}-{1:2}, at: ip6_finish_output2+0x32b/0xf60 [ 1009.185808][ C1] #2: ffffffff86166360 (rcu_read_lock){....}-{1:2}, at: process_backlog+0x1f8/0x670 [ 1009.186095][ C1] #3: ffffffff86166360 (rcu_read_lock){....}-{1:2}, at: ip6_finish_output2+0x32b/0xf60 [ 1009.186370][ C1] #4: ffffffff86166360 (rcu_read_lock){....}-{1:2}, at: ipv6_get_lladdr+0x39/0x3e0 [ 1009.186658][ C1] [ 1009.186658][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 1009.186935][ C1] -> (&p->alloc_lock){+.+.}-{2:2} { [ 1009.187096][ C1] HARDIRQ-ON-W at: [ 1009.187217][ C1] __lock_acquire+0x797/0x1570 [ 1009.187424][ C1] lock_acquire.part.0+0xeb/0x330 [ 1009.187621][ C1] _raw_spin_lock+0x30/0x40 [ 1009.187825][ C1] set_mems_allowed+0x1d/0x210 [ 1009.188038][ C1] kernel_init_freeable+0x72/0x310 [ 1009.188239][ C1] kernel_init+0x20/0x200 [ 1009.188437][ C1] ret_from_fork+0x31/0x70 [ 1009.188636][ C1] ret_from_fork_asm+0x1a/0x30 [ 1009.188832][ C1] SOFTIRQ-ON-W at: [ 1009.188963][ C1] __lock_acquire+0x797/0x1570 [ 1009.189162][ C1] lock_acquire.part.0+0xeb/0x330 [ 1009.189356][ C1] _raw_spin_lock+0x30/0x40 [ 1009.189552][ C1] set_mems_allowed+0x1d/0x210 [ 1009.189746][ C1] kernel_init_freeable+0x72/0x310 [ 1009.189960][ C1] kernel_init+0x20/0x200 [ 1009.190158][ C1] ret_from_fork+0x31/0x70 [ 1009.190360][ C1] ret_from_fork_asm+0x1a/0x30 [ 1009.190557][ C1] INITIAL USE at: [ 1009.190674][ C1] __lock_acquire+0x797/0x1570 [ 1009.190873][ C1] lock_acquire.part.0+0xeb/0x330 [ 1009.191072][ C1] _raw_spin_lock+0x30/0x40 [ 1009.191272][ C1] set_mems_allowed+0x1d/0x210 [ 1009.191463][ C1] kernel_init_freeable+0x72/0x310 [ 1009.191664][ C1] kernel_init+0x20/0x200 [ 1009.191884][ C1] ret_from_fork+0x31/0x70 [ 1009.192093][ C1] ret_from_fork_asm+0x1a/0x30 [ 1009.192298][ C1] } [ 1009.192379][ C1] ... key at: [] __key.388+0x0/0x40 [ 1009.192620][ C1] ... acquired at: [ 1009.192735][ C1] __lock_acquire+0xaf0/0x1570 [ 1009.192898][ C1] lock_acquire.part.0+0xeb/0x330 [ 1009.193053][ C1] _raw_spin_lock+0x30/0x40 [ 1009.193210][ C1] __get_task_comm+0x27/0x70 [ 1009.193366][ C1] ref_tracker_alloc+0x2ee/0x490 [ 1009.193524][ C1] netdev_get_by_index+0x5e/0x80 [ 1009.193690][ C1] fib6_nh_init+0x3d8/0x1580 [ 1009.193856][ C1] ip6_route_info_create+0xf18/0x17d0 [ 1009.194025][ C1] addrconf_f6i_alloc+0x265/0x560 [ 1009.194199][ C1] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1009.194356][ C1] addrconf_join_anycast+0x1c0/0x220 [ 1009.194510][ C1] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1009.194667][ C1] addrconf_dad_completed+0x12b/0xe20 [ 1009.194821][ C1] addrconf_dad_begin+0x310/0x670 [ 1009.194976][ C1] addrconf_dad_work+0x10b/0xab0 [ 1009.195130][ C1] process_one_work+0xe2c/0x1730 [ 1009.195293][ C1] worker_thread+0x587/0xd30 [ 1009.195450][ C1] kthread+0x28a/0x350 [ 1009.195572][ C1] ret_from_fork+0x31/0x70 [ 1009.195729][ C1] ret_from_fork_asm+0x1a/0x30 [ 1009.195884][ C1] [ 1009.195966][ C1] -> (&ndev->lock){++.-}-{2:2} { [ 1009.196124][ C1] HARDIRQ-ON-W at: [ 1009.196242][ C1] __lock_acquire+0x797/0x1570 [ 1009.196434][ C1] lock_acquire.part.0+0xeb/0x330 [ 1009.196646][ C1] _raw_write_lock_bh+0x38/0x50 [ 1009.196845][ C1] addrconf_permanent_addr+0x6e/0x670 [ 1009.197040][ C1] addrconf_notify+0x749/0xd60 [ 1009.197233][ C1] notifier_call_chain+0xcd/0x150 [ 1009.197428][ C1] __dev_notify_flags+0xe6/0x250 [ 1009.197634][ C1] dev_change_flags+0xec/0x160 [ 1009.197842][ C1] do_setlink+0x7d6/0x21e0 [ 1009.198053][ C1] __rtnl_newlink+0xaa7/0xd80 [ 1009.198261][ C1] rtnl_newlink+0x63/0xa0 [ 1009.198468][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1009.198682][ C1] netlink_rcv_skb+0x130/0x360 [ 1009.198891][ C1] netlink_unicast+0x449/0x710 [ 1009.199103][ C1] netlink_sendmsg+0x723/0xbe0 [ 1009.199312][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 1009.199623][ C1] ___sys_sendmsg+0xee/0x170 [ 1009.199818][ C1] __sys_sendmsg+0xcd/0x170 [ 1009.200010][ C1] do_syscall_64+0xc6/0x1e0 [ 1009.200202][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1009.200434][ C1] HARDIRQ-ON-R at: [ 1009.200556][ C1] __lock_acquire+0x797/0x1570 [ 1009.200753][ C1] lock_acquire.part.0+0xeb/0x330 [ 1009.201048][ C1] _raw_read_lock_bh+0x44/0x80 [ 1009.201241][ C1] inet6_fill_ifla6_attrs+0x516/0x740 [ 1009.201433][ C1] inet6_fill_link_af+0x5e/0xe0 [ 1009.201732][ C1] rtnl_fill_ifinfo+0x1615/0x2a90 [ 1009.201929][ C1] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 1009.202122][ C1] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 1009.202353][ C1] rtmsg_ifinfo+0x5b/0xa0 [ 1009.202659][ C1] register_netdevice+0x1177/0x1690 [ 1009.202866][ C1] register_netdev+0x20/0x40 [ 1009.203066][ C1] vti6_init_net+0x25d/0x380 [ 1009.203367][ C1] ops_init+0x9b/0x560 [ 1009.203521][ C1] register_pernet_operations+0x2db/0x710 [ 1009.203753][ C1] register_pernet_device+0x2a/0x60 [ 1009.204044][ C1] vti6_tunnel_init+0x18/0x110 [ 1009.204242][ C1] do_one_initcall+0x8d/0x1e0 [ 1009.204451][ C1] do_initcalls+0x1b2/0x3e0 [ 1009.204658][ C1] kernel_init_freeable+0x232/0x310 [ 1009.204973][ C1] kernel_init+0x20/0x200 [ 1009.205182][ C1] ret_from_fork+0x31/0x70 [ 1009.205385][ C1] ret_from_fork_asm+0x1a/0x30 [ 1009.205677][ C1] IN-SOFTIRQ-R at: [ 1009.205795][ C1] __lock_acquire+0x797/0x1570 [ 1009.205990][ C1] lock_acquire.part.0+0xeb/0x330 [ 1009.206183][ C1] _raw_read_lock_bh+0x44/0x80 [ 1009.206496][ C1] ipv6_get_lladdr+0xa9/0x3e0 [ 1009.206701][ C1] ndisc_send_ns+0xe7/0x100 [ 1009.206938][ C1] ndisc_solicit+0x2ae/0x4d0 [ 1009.207257][ C1] neigh_probe+0xaa/0xf0 [ 1009.207468][ C1] __neigh_event_send+0x7af/0xfe0 [ 1009.207675][ C1] neigh_resolve_output+0x470/0x7c0 [ 1009.207876][ C1] ip6_finish_output2+0x512/0xf60 [ 1009.208196][ C1] ip6_finish_output+0x553/0xdf0 [ 1009.208406][ C1] ip6_output+0x1f3/0x770 [ 1009.208615][ C1] ip6_forward+0xf29/0x2980 [ 1009.208925][ C1] ipv6_rcv+0x626/0x810 [ 1009.209133][ C1] __netif_receive_skb_one_core+0x118/0x1b0 [ 1009.209388][ C1] process_backlog+0x103/0x670 [ 1009.209695][ C1] __napi_poll.constprop.0+0xa2/0x460 [ 1009.209904][ C1] net_rx_action+0x49f/0xc00 [ 1009.210112][ C1] __do_softirq+0x1f8/0x5df [ 1009.210322][ C1] do_softirq+0x4d/0xa0 [ 1009.210637][ C1] __local_bh_enable_ip+0xf6/0x120 [ 1009.210845][ C1] __neigh_event_send+0x2e4/0xfe0 [ 1009.211056][ C1] neigh_resolve_output+0x470/0x7c0 [ 1009.211267][ C1] ip6_finish_output2+0x512/0xf60 [ 1009.211475][ C1] ip6_finish_output+0x553/0xdf0 [ 1009.211681][ C1] ip6_output+0x1f3/0x770 [ 1009.211889][ C1] ip6_send_skb+0xbd/0x280 [ 1009.212204][ C1] rawv6_push_pending_frames+0x518/0x9d0 [ 1009.212460][ C1] rawv6_sendmsg+0x1287/0x17d0 [ 1009.212670][ C1] __sys_sendto+0x332/0x410 [ 1009.212981][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 1009.213194][ C1] do_syscall_64+0xc6/0x1e0 [ 1009.213408][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1009.213758][ C1] INITIAL USE at: [ 1009.213883][ C1] __lock_acquire+0x797/0x1570 [ 1009.214098][ C1] lock_acquire.part.0+0xeb/0x330 [ 1009.214313][ C1] _raw_write_lock_bh+0x38/0x50 [ 1009.214629][ C1] addrconf_permanent_addr+0x6e/0x670 [ 1009.214841][ C1] addrconf_notify+0x749/0xd60 [ 1009.215052][ C1] notifier_call_chain+0xcd/0x150 [ 1009.215266][ C1] __dev_notify_flags+0xe6/0x250 [ 1009.215479][ C1] dev_change_flags+0xec/0x160 [ 1009.215686][ C1] do_setlink+0x7d6/0x21e0 [ 1009.215892][ C1] __rtnl_newlink+0xaa7/0xd80 [ 1009.216301][ C1] rtnl_newlink+0x63/0xa0 [ 1009.216511][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1009.216757][ C1] netlink_rcv_skb+0x130/0x360 [ 1009.217078][ C1] netlink_unicast+0x449/0x710 [ 1009.217289][ C1] netlink_sendmsg+0x723/0xbe0 [ 1009.217500][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 1009.217803][ C1] ___sys_sendmsg+0xee/0x170 [ 1009.218012][ C1] __sys_sendmsg+0xcd/0x170 [ 1009.218220][ C1] do_syscall_64+0xc6/0x1e0 [ 1009.218428][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1009.218783][ C1] INITIAL READ USE at: [ 1009.218909][ C1] __lock_acquire+0x797/0x1570 [ 1009.219118][ C1] lock_acquire.part.0+0xeb/0x330 [ 1009.219426][ C1] _raw_read_lock_bh+0x44/0x80 [ 1009.219636][ C1] inet6_fill_ifla6_attrs+0x516/0x740 [ 1009.219883][ C1] inet6_fill_link_af+0x5e/0xe0 [ 1009.220096][ C1] rtnl_fill_ifinfo+0x1615/0x2a90 [ 1009.220403][ C1] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 1009.220653][ C1] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 1009.220901][ C1] rtmsg_ifinfo+0x5b/0xa0 [ 1009.221209][ C1] register_netdevice+0x1177/0x1690 [ 1009.221456][ C1] register_netdev+0x20/0x40 [ 1009.221670][ C1] vti6_init_net+0x25d/0x380 [ 1009.221981][ C1] ops_init+0x9b/0x560 [ 1009.222185][ C1] register_pernet_operations+0x2db/0x710 [ 1009.222432][ C1] register_pernet_device+0x2a/0x60 [ 1009.222784][ C1] vti6_tunnel_init+0x18/0x110 [ 1009.222991][ C1] do_one_initcall+0x8d/0x1e0 [ 1009.223206][ C1] do_initcalls+0x1b2/0x3e0 [ 1009.223520][ C1] kernel_init_freeable+0x232/0x310 [ 1009.223768][ C1] kernel_init+0x20/0x200 [ 1009.223974][ C1] ret_from_fork+0x31/0x70 [ 1009.224186][ C1] ret_from_fork_asm+0x1a/0x30 [ 1009.224391][ C1] } [ 1009.224480][ C1] ... key at: [] __key.37+0x0/0x40 [ 1009.224731][ C1] ... acquired at: [ 1009.224854][ C1] mark_lock+0x28d/0x3e0 [ 1009.225117][ C1] mark_usage+0xd9/0x2a0 [ 1009.225280][ C1] __lock_acquire+0x797/0x1570 [ 1009.225443][ C1] lock_acquire.part.0+0xeb/0x330 [ 1009.225608][ C1] _raw_read_lock_bh+0x44/0x80 [ 1009.225869][ C1] ipv6_get_lladdr+0xa9/0x3e0 [ 1009.226032][ C1] ndisc_send_ns+0xe7/0x100 [ 1009.226200][ C1] ndisc_solicit+0x2ae/0x4d0 [ 1009.226362][ C1] neigh_probe+0xaa/0xf0 [ 1009.226638][ C1] __neigh_event_send+0x7af/0xfe0 [ 1009.226807][ C1] neigh_resolve_output+0x470/0x7c0 [ 1009.226969][ C1] ip6_finish_output2+0x512/0xf60 [ 1009.227130][ C1] ip6_finish_output+0x553/0xdf0 [ 1009.227294][ C1] ip6_output+0x1f3/0x770 [ 1009.227457][ C1] ip6_forward+0xf29/0x2980 [ 1009.227625][ C1] ipv6_rcv+0x626/0x810 [ 1009.227750][ C1] __netif_receive_skb_one_core+0x118/0x1b0 [ 1009.227954][ C1] process_backlog+0x103/0x670 [ 1009.228214][ C1] __napi_poll.constprop.0+0xa2/0x460 [ 1009.228381][ C1] net_rx_action+0x49f/0xc00 [ 1009.228549][ C1] __do_softirq+0x1f8/0x5df [ 1009.228715][ C1] do_softirq+0x4d/0xa0 [ 1009.229034][ C1] __local_bh_enable_ip+0xf6/0x120 [ 1009.229204][ C1] __neigh_event_send+0x2e4/0xfe0 [ 1009.229369][ C1] neigh_resolve_output+0x470/0x7c0 [ 1009.229535][ C1] ip6_finish_output2+0x512/0xf60 [ 1009.229820][ C1] ip6_finish_output+0x553/0xdf0 [ 1009.229977][ C1] ip6_output+0x1f3/0x770 [ 1009.230136][ C1] ip6_send_skb+0xbd/0x280 [ 1009.230288][ C1] rawv6_push_pending_frames+0x518/0x9d0 [ 1009.230583][ C1] rawv6_sendmsg+0x1287/0x17d0 [ 1009.230742][ C1] __sys_sendto+0x332/0x410 [ 1009.230898][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 1009.231060][ C1] do_syscall_64+0xc6/0x1e0 [ 1009.231218][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1009.231409][ C1] [ 1009.231491][ C1] [ 1009.231491][ C1] stack backtrace: [ 1009.231686][ C1] CPU: 1 PID: 9070 Comm: ping Not tainted 6.9.0-rc1-virtme #1 [ 1009.232023][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1009.232422][ C1] Call Trace: [ 1009.232552][ C1] [ 1009.232644][ C1] dump_stack_lvl+0x82/0xd0 [ 1009.232920][ C1] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 1009.233129][ C1] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 1009.233339][ C1] ? __pfx_usage_skip+0x10/0x10 [ 1009.233510][ C1] ? __pfx_usage_match+0x10/0x10 [ 1009.233777][ C1] ? arch_stack_walk+0xa2/0xf0 [ 1009.233944][ C1] mark_lock_irq+0x4cd/0xa10 [ 1009.234113][ C1] ? __pfx_mark_lock_irq+0x10/0x10 [ 1009.234278][ C1] ? stack_trace_save+0x94/0xd0 [ 1009.234553][ C1] ? save_trace+0x8f/0x5b0 [ 1009.234718][ C1] mark_lock+0x28d/0x3e0 [ 1009.234846][ C1] mark_usage+0xd9/0x2a0 [ 1009.234971][ C1] __lock_acquire+0x797/0x1570 [ 1009.235141][ C1] lock_acquire.part.0+0xeb/0x330 [ 1009.235309][ C1] ? ipv6_get_lladdr+0xa9/0x3e0 [ 1009.235477][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1009.235644][ C1] ? trace_lock_acquire+0x135/0x1c0 [ 1009.235811][ C1] ? ipv6_get_lladdr+0xa9/0x3e0 [ 1009.236073][ C1] ? lock_acquire+0x32/0xc0 [ 1009.236237][ C1] ? ipv6_get_lladdr+0xa9/0x3e0 [ 1009.236404][ C1] _raw_read_lock_bh+0x44/0x80 [ 1009.236569][ C1] ? ipv6_get_lladdr+0xa9/0x3e0 [ 1009.236843][ C1] ipv6_get_lladdr+0xa9/0x3e0 [ 1009.237013][ C1] ndisc_send_ns+0xe7/0x100 [ 1009.237179][ C1] ? __pfx_ndisc_send_ns+0x10/0x10 [ 1009.237346][ C1] ? __ipv6_chk_addr_and_flags+0x393/0x650 [ 1009.237651][ C1] ndisc_solicit+0x2ae/0x4d0 [ 1009.237820][ C1] ? __pfx_ndisc_solicit+0x10/0x10 [ 1009.237987][ C1] ? neigh_probe+0x57/0xf0 [ 1009.238153][ C1] neigh_probe+0xaa/0xf0 [ 1009.238279][ C1] __neigh_event_send+0x7af/0xfe0 [ 1009.238551][ C1] neigh_resolve_output+0x470/0x7c0 [ 1009.238716][ C1] ? __local_bh_enable_ip+0xa6/0x120 [ 1009.238883][ C1] ? ___neigh_create+0x7c6/0xe10 [ 1009.239051][ C1] ip6_finish_output2+0x512/0xf60 [ 1009.239219][ C1] ip6_finish_output+0x553/0xdf0 [ 1009.239388][ C1] ip6_output+0x1f3/0x770 [ 1009.239514][ C1] ? __pfx_ip6_output+0x10/0x10 [ 1009.239681][ C1] ? ip6_dst_mtu_maybe_forward.constprop.0+0x189/0x3c0 [ 1009.239991][ C1] ip6_forward+0xf29/0x2980 [ 1009.240156][ C1] ? ip6_route_input+0x5a4/0xa50 [ 1009.240326][ C1] ? __pfx_ip6_forward+0x10/0x10 [ 1009.240494][ C1] ? ip6_rcv_core+0x9e5/0x1ae0 [ 1009.240661][ C1] ? ipv6_rcv+0x626/0x810 [ 1009.240886][ C1] ipv6_rcv+0x626/0x810 [ 1009.241011][ C1] ? __pfx_ipv6_rcv+0x10/0x10 [ 1009.241181][ C1] ? lock_acquire.part.0+0xeb/0x330 [ 1009.241347][ C1] ? process_backlog+0x1f8/0x670 [ 1009.241713][ C1] ? __pfx_ipv6_rcv+0x10/0x10 [ 1009.241882][ C1] __netif_receive_skb_one_core+0x118/0x1b0 [ 1009.242090][ C1] ? __pfx___netif_receive_skb_one_core+0x10/0x10 [ 1009.242294][ C1] ? process_backlog+0x1f8/0x670 [ 1009.242564][ C1] ? lock_acquire+0x32/0xc0 [ 1009.242732][ C1] ? process_backlog+0x1f8/0x670 [ 1009.242899][ C1] process_backlog+0x103/0x670 [ 1009.243065][ C1] __napi_poll.constprop.0+0xa2/0x460 [ 1009.243234][ C1] net_rx_action+0x49f/0xc00 [ 1009.243400][ C1] ? __pfx_net_rx_action+0x10/0x10 [ 1009.243563][ C1] ? usage_skip+0x150/0x190 [ 1009.243730][ C1] ? mark_held_locks+0x9e/0xe0 [ 1009.243896][ C1] __do_softirq+0x1f8/0x5df [ 1009.244159][ C1] ? __neigh_event_send+0x2df/0xfe0 [ 1009.244321][ C1] do_softirq+0x4d/0xa0 [ 1009.244443][ C1] [ 1009.244529][ C1] [ 1009.244613][ C1] __local_bh_enable_ip+0xf6/0x120 [ 1009.244878][ C1] __neigh_event_send+0x2e4/0xfe0 [ 1009.245042][ C1] neigh_resolve_output+0x470/0x7c0 [ 1009.245205][ C1] ? __local_bh_enable_ip+0xa6/0x120 [ 1009.245366][ C1] ? ___neigh_create+0x7c6/0xe10 [ 1009.245631][ C1] ip6_finish_output2+0x512/0xf60 [ 1009.245794][ C1] ip6_finish_output+0x553/0xdf0 [ 1009.245958][ C1] ip6_output+0x1f3/0x770 [ 1009.246080][ C1] ? __pfx___ip6_make_skb+0x10/0x10 [ 1009.246247][ C1] ? __pfx_ip6_output+0x10/0x10 [ 1009.246511][ C1] ? ip6_local_out+0x25/0x3b0 [ 1009.246683][ C1] ip6_send_skb+0xbd/0x280 [ 1009.246850][ C1] rawv6_push_pending_frames+0x518/0x9d0 [ 1009.247015][ C1] ? __pfx_raw6_getfrag+0x10/0x10 [ 1009.247280][ C1] ? ip6_append_data+0x185/0x540 [ 1009.247446][ C1] ? __pfx_rawv6_push_pending_frames+0x10/0x10 [ 1009.247651][ C1] rawv6_sendmsg+0x1287/0x17d0 [ 1009.247820][ C1] ? __pfx_validate_chain+0x10/0x10 [ 1009.248083][ C1] ? __pfx_rawv6_sendmsg+0x10/0x10 [ 1009.248246][ C1] ? __lock_acquire+0xaf0/0x1570 [ 1009.248410][ C1] ? hlock_class+0x4e/0x130 [ 1009.248573][ C1] ? find_held_lock+0x2c/0x110 [ 1009.248836][ C1] ? __might_fault+0x11b/0x170 [ 1009.249005][ C1] ? lock_acquire+0x32/0xc0 [ 1009.249176][ C1] ? __might_fault+0xc3/0x170 [ 1009.249341][ C1] ? __might_fault+0x11b/0x170 [ 1009.249517][ C1] ? __sys_sendto+0x332/0x410 [ 1009.249784][ C1] __sys_sendto+0x332/0x410 [ 1009.249951][ C1] ? __pfx___sys_sendto+0x10/0x10 [ 1009.250118][ C1] ? find_held_lock+0x2c/0x110 [ 1009.250282][ C1] ? __might_fault+0xc3/0x170 [ 1009.250553][ C1] ? lock_acquire+0x32/0xc0 [ 1009.250721][ C1] ? __might_fault+0xc3/0x170 [ 1009.250888][ C1] ? trace_rseq_update+0xd2/0x130 [ 1009.251058][ C1] ? __rseq_handle_notify_resume+0x354/0x4e0 [ 1009.251271][ C1] ? __pfx___rseq_handle_notify_resume+0x10/0x10 [ 1009.251479][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 1009.251649][ C1] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 1009.251858][ C1] do_syscall_64+0xc6/0x1e0 [ 1009.252123][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1009.252353][ C1] RIP: 0033:0x7f58b5a4285a [ 1009.252525][ C1] 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 [ 1009.253177][ C1] RSP: 002b:00007ffeba2c5098 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 1009.253411][ C1] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007f58b5a4285a [ 1009.253748][ C1] RDX: 0000000000000040 RSI: 000000003f33d340 RDI: 0000000000000006 [ 1009.253983][ C1] RBP: 00007ffeba2c5120 R08: 0000000000418574 R09: 000000000000001c [ 1009.254219][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000419ac0 [ 1009.254549][ C1] R13: 000000000040305a R14: 0000000000415dd0 R15: 00007f58b5b68000 [ 1009.254780][ C1]