[ 25.022310][ T259] ip (259) used greatest stack depth: 23200 bytes left [ 31.375168][ T321] 8021q: 802.1Q VLAN Support v1.8 [ 31.850363][ T326] gre: GRE over IPv4 demultiplexor driver [ 31.904680][ T326] ip6_gre: GRE over IPv6 tunneling driver [ 43.047137][ T401] GACT probability NOT on [ 43.653281][ C1] [ 43.653417][ C1] ======================================================== [ 43.653684][ C1] WARNING: possible irq lock inversion dependency detected [ 43.653945][ C1] 6.9.0-rc1-virtme #1 Not tainted [ 43.654125][ C1] -------------------------------------------------------- [ 43.654390][ C1] mausezahn/404 just changed the state of lock: [ 43.654614][ C1] ffff888006580d80 (&ndev->lock){++.-}-{2:2}, at: ipv6_get_lladdr+0xa9/0x3e0 [ 43.654935][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 43.655195][ C1] (&p->alloc_lock){+.+.}-{2:2} [ 43.655199][ C1] [ 43.655199][ C1] [ 43.655199][ C1] and interrupts could create inverse lock ordering between them. [ 43.655199][ C1] [ 43.655864][ C1] [ 43.655864][ C1] other info that might help us debug this: [ 43.656124][ C1] Possible interrupt unsafe locking scenario: [ 43.656124][ C1] [ 43.656391][ C1] CPU0 CPU1 [ 43.656574][ C1] ---- ---- [ 43.656752][ C1] lock(&p->alloc_lock); [ 43.656892][ C1] local_irq_disable(); [ 43.657114][ C1] lock(&ndev->lock); [ 43.657339][ C1] lock(&p->alloc_lock); [ 43.657564][ C1] [ 43.657701][ C1] lock(&ndev->lock); [ 43.657843][ C1] [ 43.657843][ C1] *** DEADLOCK *** [ 43.657843][ C1] [ 43.658105][ C1] 5 locks held by mausezahn/404: [ 43.658282][ C1] #0: ffffffffa73522e0 (rcu_read_lock){....}-{1:2}, at: process_backlog+0x1f8/0x670 [ 43.658600][ C1] #1: ffffffffa73522e0 (rcu_read_lock){....}-{1:2}, at: ip_finish_output2+0x262/0x18e0 [ 43.658916][ C1] #2: ffffffffa7352280 (rcu_read_lock_bh){....}-{1:2}, at: __dev_queue_xmit+0x1dd/0x16d0 [ 43.659237][ C1] #3: ffffffffa73522e0 (rcu_read_lock){....}-{1:2}, at: ip6_finish_output2+0x2c4/0xf80 [ 43.659554][ C1] #4: ffffffffa73522e0 (rcu_read_lock){....}-{1:2}, at: ipv6_get_lladdr+0x39/0x3e0 [ 43.659870][ C1] [ 43.659870][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 43.660180][ C1] -> (&p->alloc_lock){+.+.}-{2:2} { [ 43.660368][ C1] HARDIRQ-ON-W at: [ 43.660502][ C1] __lock_acquire+0x797/0x1570 [ 43.660732][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.660955][ C1] _raw_spin_lock+0x30/0x40 [ 43.661178][ C1] set_mems_allowed+0x1d/0x210 [ 43.661404][ C1] kernel_init_freeable+0x72/0x310 [ 43.661630][ C1] kernel_init+0x20/0x200 [ 43.661857][ C1] ret_from_fork+0x31/0x70 [ 43.662081][ C1] ret_from_fork_asm+0x1a/0x30 [ 43.662305][ C1] SOFTIRQ-ON-W at: [ 43.662438][ C1] __lock_acquire+0x797/0x1570 [ 43.662662][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.662886][ C1] _raw_spin_lock+0x30/0x40 [ 43.663128][ C1] set_mems_allowed+0x1d/0x210 [ 43.663351][ C1] kernel_init_freeable+0x72/0x310 [ 43.663571][ C1] kernel_init+0x20/0x200 [ 43.663797][ C1] ret_from_fork+0x31/0x70 [ 43.664018][ C1] ret_from_fork_asm+0x1a/0x30 [ 43.664241][ C1] INITIAL USE at: [ 43.664376][ C1] __lock_acquire+0x797/0x1570 [ 43.664600][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.664827][ C1] _raw_spin_lock+0x30/0x40 [ 43.665050][ C1] set_mems_allowed+0x1d/0x210 [ 43.665275][ C1] kernel_init_freeable+0x72/0x310 [ 43.665500][ C1] kernel_init+0x20/0x200 [ 43.665723][ C1] ret_from_fork+0x31/0x70 [ 43.665956][ C1] ret_from_fork_asm+0x1a/0x30 [ 43.666181][ C1] } [ 43.666272][ C1] ... key at: [] __key.387+0x0/0x40 [ 43.666658][ C1] ... acquired at: [ 43.666793][ C1] __lock_acquire+0xaf0/0x1570 [ 43.666981][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.667162][ C1] _raw_spin_lock+0x30/0x40 [ 43.667342][ C1] __get_task_comm+0x27/0x70 [ 43.667521][ C1] ref_tracker_alloc+0x2ee/0x490 [ 43.667700][ C1] netdev_get_by_index+0x5e/0x80 [ 43.667881][ C1] fib6_nh_init+0x3d8/0x15b0 [ 43.668170][ C1] ip6_route_info_create+0xf18/0x17d0 [ 43.668351][ C1] addrconf_f6i_alloc+0x265/0x560 [ 43.668530][ C1] __ipv6_dev_ac_inc+0x25f/0xb10 [ 43.668708][ C1] addrconf_join_anycast+0x1c0/0x220 [ 43.668895][ C1] __ipv6_ifa_notify+0x6b3/0xaf0 [ 43.669296][ C1] addrconf_dad_completed+0x12b/0xe20 [ 43.669474][ C1] addrconf_dad_work+0x38c/0xab0 [ 43.669652][ C1] process_one_work+0xe2c/0x1730 [ 43.669832][ C1] worker_thread+0x587/0xd30 [ 43.670122][ C1] kthread+0x28a/0x350 [ 43.670257][ C1] ret_from_fork+0x31/0x70 [ 43.670438][ C1] ret_from_fork_asm+0x1a/0x30 [ 43.670620][ C1] [ 43.670712][ C1] -> (&ndev->lock){++.-}-{2:2} { [ 43.671005][ C1] HARDIRQ-ON-W at: [ 43.671140][ C1] __lock_acquire+0x797/0x1570 [ 43.671366][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.671590][ C1] _raw_write_lock_bh+0x38/0x50 [ 43.671927][ C1] addrconf_permanent_addr+0x6e/0x670 [ 43.672156][ C1] addrconf_notify+0x749/0xd60 [ 43.672382][ C1] notifier_call_chain+0xcd/0x150 [ 43.672716][ C1] __dev_notify_flags+0xe6/0x250 [ 43.672940][ C1] dev_change_flags+0xec/0x160 [ 43.673184][ C1] do_setlink+0x7d6/0x21e0 [ 43.673407][ C1] __rtnl_newlink+0xaa7/0xd80 [ 43.673745][ C1] rtnl_newlink+0x63/0xa0 [ 43.673973][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.674199][ C1] netlink_rcv_skb+0x130/0x360 [ 43.674422][ C1] netlink_unicast+0x449/0x710 [ 43.674643][ C1] netlink_sendmsg+0x723/0xbe0 [ 43.674865][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 43.675202][ C1] ___sys_sendmsg+0xee/0x170 [ 43.675434][ C1] __sys_sendmsg+0xcd/0x170 [ 43.675657][ C1] do_syscall_64+0xc6/0x1e0 [ 43.675882][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.676267][ C1] HARDIRQ-ON-R at: [ 43.676401][ C1] __lock_acquire+0x797/0x1570 [ 43.676624][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.676959][ C1] _raw_read_lock_bh+0x44/0x80 [ 43.677192][ C1] inet6_fill_ifla6_attrs+0x516/0x740 [ 43.677418][ C1] inet6_fill_link_af+0x5e/0xe0 [ 43.677641][ C1] rtnl_fill_ifinfo+0x1612/0x29e0 [ 43.677978][ C1] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 43.678202][ C1] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 43.678470][ C1] rtmsg_ifinfo+0x5b/0xa0 [ 43.678810][ C1] register_netdevice+0x1177/0x1690 [ 43.679033][ C1] register_netdev+0x20/0x40 [ 43.679257][ C1] sit_init_net+0x250/0x4f0 [ 43.679589][ C1] ops_init+0x9b/0x560 [ 43.679775][ C1] register_pernet_operations+0x2db/0x710 [ 43.680038][ C1] register_pernet_device+0x2a/0x60 [ 43.680261][ C1] sit_init+0x23/0xe0 [ 43.680553][ C1] do_one_initcall+0x8d/0x1e0 [ 43.680775][ C1] do_initcalls+0x1b2/0x3e0 [ 43.680996][ C1] kernel_init_freeable+0x232/0x310 [ 43.681216][ C1] kernel_init+0x20/0x200 [ 43.681437][ C1] ret_from_fork+0x31/0x70 [ 43.681656][ C1] ret_from_fork_asm+0x1a/0x30 [ 43.681881][ C1] IN-SOFTIRQ-R at: [ 43.682125][ C1] __lock_acquire+0x797/0x1570 [ 43.682347][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.682568][ C1] _raw_read_lock_bh+0x44/0x80 [ 43.682791][ C1] ipv6_get_lladdr+0xa9/0x3e0 [ 43.683269][ C1] ndisc_send_ns+0xe7/0x100 [ 43.683493][ C1] ndisc_solicit+0x2ae/0x4d0 [ 43.683720][ C1] neigh_probe+0xaa/0xf0 [ 43.684053][ C1] __neigh_event_send+0x7af/0xfe0 [ 43.684276][ C1] neigh_resolve_output+0x470/0x7c0 [ 43.684504][ C1] ip6_finish_output2+0x4ab/0xf80 [ 43.684836][ C1] ip6_finish_output+0x4ed/0xd30 [ 43.685064][ C1] ip6_output+0x1f3/0x770 [ 43.685290][ C1] ip6tunnel_xmit.constprop.0+0x16b/0x360 [ip6_tunnel] [ 43.685566][ C1] ip6_tnl_xmit+0x1266/0x3490 [ip6_tunnel] [ 43.685950][ C1] __gre6_xmit+0x706/0x1960 [ip6_gre] [ 43.686181][ C1] ip6gre_tunnel_xmit+0x920/0xf10 [ip6_gre] [ 43.686450][ C1] dev_hard_start_xmit+0x10e/0x360 [ 43.686789][ C1] __dev_queue_xmit+0xe69/0x16d0 [ 43.687012][ C1] ip_finish_output2+0x616/0x18e0 [ 43.687235][ C1] ip_output+0x16b/0x4f0 [ 43.687572][ C1] NF_HOOK.constprop.0+0x7e/0x320 [ 43.687796][ C1] ip_rcv+0x62f/0x740 [ 43.687977][ C1] __netif_receive_skb_one_core+0x166/0x1b0 [ 43.688251][ C1] process_backlog+0x103/0x670 [ 43.688475][ C1] __napi_poll.constprop.0+0xa2/0x460 [ 43.688696][ C1] net_rx_action+0x49f/0xc00 [ 43.688918][ C1] __do_softirq+0x1f8/0x5df [ 43.689253][ C1] do_softirq+0x4d/0xa0 [ 43.689480][ C1] __local_bh_enable_ip+0xf6/0x120 [ 43.689702][ C1] __dev_queue_xmit+0x6ac/0x16d0 [ 43.690042][ C1] packet_snd+0xd08/0x1840 [ 43.690276][ C1] __sys_sendto+0x37d/0x410 [ 43.690501][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 43.690727][ C1] do_syscall_64+0xc6/0x1e0 [ 43.691064][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.691332][ C1] INITIAL USE at: [ 43.691469][ C1] __lock_acquire+0x797/0x1570 [ 43.691810][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.692033][ C1] _raw_write_lock_bh+0x38/0x50 [ 43.692258][ C1] addrconf_permanent_addr+0x6e/0x670 [ 43.692482][ C1] addrconf_notify+0x749/0xd60 [ 43.692816][ C1] notifier_call_chain+0xcd/0x150 [ 43.693047][ C1] __dev_notify_flags+0xe6/0x250 [ 43.693278][ C1] dev_change_flags+0xec/0x160 [ 43.693619][ C1] do_setlink+0x7d6/0x21e0 [ 43.693843][ C1] __rtnl_newlink+0xaa7/0xd80 [ 43.694068][ C1] rtnl_newlink+0x63/0xa0 [ 43.694290][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.694513][ C1] netlink_rcv_skb+0x130/0x360 [ 43.694740][ C1] netlink_unicast+0x449/0x710 [ 43.694966][ C1] netlink_sendmsg+0x723/0xbe0 [ 43.695298][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 43.695519][ C1] ___sys_sendmsg+0xee/0x170 [ 43.695742][ C1] __sys_sendmsg+0xcd/0x170 [ 43.696074][ C1] do_syscall_64+0xc6/0x1e0 [ 43.696296][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.696564][ C1] INITIAL READ USE at: [ 43.696697][ C1] __lock_acquire+0x797/0x1570 [ 43.697140][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.697359][ C1] _raw_read_lock_bh+0x44/0x80 [ 43.697580][ C1] inet6_fill_ifla6_attrs+0x516/0x740 [ 43.697958][ C1] inet6_fill_link_af+0x5e/0xe0 [ 43.698183][ C1] rtnl_fill_ifinfo+0x1612/0x29e0 [ 43.698401][ C1] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 43.698778][ C1] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 43.699041][ C1] rtmsg_ifinfo+0x5b/0xa0 [ 43.699269][ C1] register_netdevice+0x1177/0x1690 [ 43.699644][ C1] register_netdev+0x20/0x40 [ 43.699870][ C1] sit_init_net+0x250/0x4f0 [ 43.700093][ C1] ops_init+0x9b/0x560 [ 43.700313][ C1] register_pernet_operations+0x2db/0x710 [ 43.700692][ C1] register_pernet_device+0x2a/0x60 [ 43.700957][ C1] sit_init+0x23/0xe0 [ 43.701185][ C1] do_one_initcall+0x8d/0x1e0 [ 43.701411][ C1] do_initcalls+0x1b2/0x3e0 [ 43.701633][ C1] kernel_init_freeable+0x232/0x310 [ 43.701900][ C1] kernel_init+0x20/0x200 [ 43.702235][ C1] ret_from_fork+0x31/0x70 [ 43.702459][ C1] ret_from_fork_asm+0x1a/0x30 [ 43.702684][ C1] } [ 43.702775][ C1] ... key at: [] __key.37+0x0/0x40 [ 43.703167][ C1] ... acquired at: [ 43.703300][ C1] mark_lock+0x28d/0x3e0 [ 43.703480][ C1] mark_usage+0xd9/0x2a0 [ 43.703657][ C1] __lock_acquire+0x797/0x1570 [ 43.703944][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.704121][ C1] _raw_read_lock_bh+0x44/0x80 [ 43.704298][ C1] ipv6_get_lladdr+0xa9/0x3e0 [ 43.704474][ C1] ndisc_send_ns+0xe7/0x100 [ 43.704766][ C1] ndisc_solicit+0x2ae/0x4d0 [ 43.704945][ C1] neigh_probe+0xaa/0xf0 [ 43.705123][ C1] __neigh_event_send+0x7af/0xfe0 [ 43.705299][ C1] neigh_resolve_output+0x470/0x7c0 [ 43.705585][ C1] ip6_finish_output2+0x4ab/0xf80 [ 43.705761][ C1] ip6_finish_output+0x4ed/0xd30 [ 43.705936][ C1] ip6_output+0x1f3/0x770 [ 43.706112][ C1] ip6tunnel_xmit.constprop.0+0x16b/0x360 [ip6_tunnel] [ 43.706453][ C1] ip6_tnl_xmit+0x1266/0x3490 [ip6_tunnel] [ 43.706679][ C1] __gre6_xmit+0x706/0x1960 [ip6_gre] [ 43.706861][ C1] ip6gre_tunnel_xmit+0x920/0xf10 [ip6_gre] [ 43.707085][ C1] dev_hard_start_xmit+0x10e/0x360 [ 43.707262][ C1] __dev_queue_xmit+0xe69/0x16d0 [ 43.707438][ C1] ip_finish_output2+0x616/0x18e0 [ 43.707615][ C1] ip_output+0x16b/0x4f0 [ 43.707801][ C1] NF_HOOK.constprop.0+0x7e/0x320 [ 43.708089][ C1] ip_rcv+0x62f/0x740 [ 43.708224][ C1] __netif_receive_skb_one_core+0x166/0x1b0 [ 43.708444][ C1] process_backlog+0x103/0x670 [ 43.708622][ C1] __napi_poll.constprop.0+0xa2/0x460 [ 43.708799][ C1] net_rx_action+0x49f/0xc00 [ 43.709085][ C1] __do_softirq+0x1f8/0x5df [ 43.709261][ C1] do_softirq+0x4d/0xa0 [ 43.709400][ C1] __local_bh_enable_ip+0xf6/0x120 [ 43.709576][ C1] __dev_queue_xmit+0x6ac/0x16d0 [ 43.709866][ C1] packet_snd+0xd08/0x1840 [ 43.710048][ C1] __sys_sendto+0x37d/0x410 [ 43.710227][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 43.710404][ C1] do_syscall_64+0xc6/0x1e0 [ 43.710805][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.711027][ C1] [ 43.711116][ C1] [ 43.711116][ C1] stack backtrace: [ 43.711342][ C1] CPU: 1 PID: 404 Comm: mausezahn Not tainted 6.9.0-rc1-virtme #1 [ 43.711722][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 43.712115][ C1] Call Trace: [ 43.712257][ C1] [ 43.712349][ C1] dump_stack_lvl+0x82/0xd0 [ 43.712641][ C1] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 43.712867][ C1] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 43.713099][ C1] ? __pfx_usage_skip+0x10/0x10 [ 43.713274][ C1] ? __pfx_usage_match+0x10/0x10 [ 43.713447][ C1] ? arch_stack_walk+0xa2/0xf0 [ 43.713625][ C1] mark_lock_irq+0x4cd/0xa10 [ 43.713801][ C1] ? __pfx_mark_lock_irq+0x10/0x10 [ 43.713978][ C1] ? stack_trace_save+0x94/0xd0 [ 43.714269][ C1] ? save_trace+0x8f/0x5b0 [ 43.714446][ C1] mark_lock+0x28d/0x3e0 [ 43.714584][ C1] mark_usage+0xd9/0x2a0 [ 43.714718][ C1] __lock_acquire+0x797/0x1570 [ 43.714904][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.715189][ C1] ? ipv6_get_lladdr+0xa9/0x3e0 [ 43.715367][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 43.715544][ C1] ? trace_lock_acquire+0x135/0x1c0 [ 43.715721][ C1] ? ipv6_get_lladdr+0xa9/0x3e0 [ 43.716006][ C1] ? lock_acquire+0x32/0xc0 [ 43.716186][ C1] ? ipv6_get_lladdr+0xa9/0x3e0 [ 43.716362][ C1] _raw_read_lock_bh+0x44/0x80 [ 43.716539][ C1] ? ipv6_get_lladdr+0xa9/0x3e0 [ 43.716822][ C1] ipv6_get_lladdr+0xa9/0x3e0 [ 43.716999][ C1] ndisc_send_ns+0xe7/0x100 [ 43.717176][ C1] ? __pfx_ndisc_send_ns+0x10/0x10 [ 43.717353][ C1] ? __ipv6_chk_addr_and_flags+0x393/0x650 [ 43.717685][ C1] ndisc_solicit+0x2ae/0x4d0 [ 43.717862][ C1] ? __pfx_ndisc_solicit+0x10/0x10 [ 43.718043][ C1] ? neigh_probe+0x57/0xf0 [ 43.718222][ C1] neigh_probe+0xaa/0xf0 [ 43.718355][ C1] __neigh_event_send+0x7af/0xfe0 [ 43.718644][ C1] ? do_raw_write_lock+0xe1/0x3b0 [ 43.718823][ C1] ? __pfx_do_raw_write_lock+0x10/0x10 [ 43.719003][ C1] neigh_resolve_output+0x470/0x7c0 [ 43.719180][ C1] ? __local_bh_enable_ip+0xa6/0x120 [ 43.719360][ C1] ? ___neigh_create+0x7c6/0xe10 [ 43.719545][ C1] ip6_finish_output2+0x4ab/0xf80 [ 43.719727][ C1] ip6_finish_output+0x4ed/0xd30 [ 43.719906][ C1] ? __pfx_flow_hash_from_keys+0x10/0x10 [ 43.720199][ C1] ip6_output+0x1f3/0x770 [ 43.720338][ C1] ? __pfx_ip6_output+0x10/0x10 [ 43.720518][ C1] ? ip6_make_flowlabel.constprop.0+0x1c4/0x2f0 [ip6_tunnel] [ 43.720794][ C1] ? __pfx_ip6_make_flowlabel.constprop.0+0x10/0x10 [ip6_tunnel] [ 43.721178][ C1] ? ip6_local_out+0x25/0x3b0 [ 43.721364][ C1] ip6tunnel_xmit.constprop.0+0x16b/0x360 [ip6_tunnel] [ 43.721591][ C1] ip6_tnl_xmit+0x1266/0x3490 [ip6_tunnel] [ 43.721927][ C1] ? __kasan_kmalloc+0x7f/0x90 [ 43.722110][ C1] ? trace_kmalloc+0x2a/0xe0 [ 43.722292][ C1] ? sk_getsockopt+0x2048/0x2c40 [ 43.722471][ C1] ? __pfx_ip6_tnl_xmit+0x10/0x10 [ip6_tunnel] [ 43.722808][ C1] ? pskb_expand_head+0x4ac/0x1020 [ 43.723008][ C1] ? __pfx_pskb_expand_head+0x10/0x10 [ 43.723187][ C1] ? __ipv6_chk_addr_and_flags+0x38e/0x650 [ 43.723412][ C1] ? __gre6_xmit+0x706/0x1960 [ip6_gre] [ 43.723705][ C1] __gre6_xmit+0x706/0x1960 [ip6_gre] [ 43.723891][ C1] ? __pfx___gre6_xmit+0x10/0x10 [ip6_gre] [ 43.724120][ C1] ip6gre_tunnel_xmit+0x920/0xf10 [ip6_gre] [ 43.724349][ C1] ? __pfx_ip6gre_tunnel_xmit+0x10/0x10 [ip6_gre] [ 43.724801][ C1] ? find_held_lock+0x2c/0x110 [ 43.724979][ C1] ? __lock_release+0x103/0x460 [ 43.725158][ C1] ? dev_queue_xmit_nit+0x775/0xad0 [ 43.725338][ C1] ? dev_queue_xmit_nit+0x759/0xad0 [ 43.725630][ C1] ? __pfx_qdisc_pkt_len_init+0x10/0x10 [ 43.725809][ C1] ? dev_queue_xmit_nit+0x775/0xad0 [ 43.725989][ C1] dev_hard_start_xmit+0x10e/0x360 [ 43.726168][ C1] ? validate_xmit_skb.constprop.0+0x2a/0x4f0 [ 43.726505][ C1] __dev_queue_xmit+0xe69/0x16d0 [ 43.726685][ C1] ? do_raw_write_lock+0x122/0x3b0 [ 43.726861][ C1] ? __pfx_do_raw_write_lock+0x10/0x10 [ 43.727039][ C1] ? __pfx___dev_queue_xmit+0x10/0x10 [ 43.727218][ C1] ? ___neigh_create+0x7c6/0xe10 [ 43.727396][ C1] ? ___neigh_create+0x7c6/0xe10 [ 43.727576][ C1] ip_finish_output2+0x616/0x18e0 [ 43.727753][ C1] ? lockdep_hardirqs_on_prepare.part.0+0x14f/0x370 [ 43.728088][ C1] ? __pfx_ip_finish_output2+0x10/0x10 [ 43.728267][ C1] ? __ip_finish_output+0x10f/0x770 [ 43.728447][ C1] ip_output+0x16b/0x4f0 [ 43.728582][ C1] ? __pfx_ip_output+0x10/0x10 [ 43.728759][ C1] ? pskb_expand_head+0x485/0x1020 [ 43.729048][ C1] ? ip_route_input_noref+0x10e/0x230 [ 43.729229][ C1] NF_HOOK.constprop.0+0x7e/0x320 [ 43.729414][ C1] ? __pfx_NF_HOOK.constprop.0+0x10/0x10 [ 43.729592][ C1] ? ip_forward+0xdc8/0x1a10 [ 43.729883][ C1] ip_rcv+0x62f/0x740 [ 43.730017][ C1] ? __pfx_ip_rcv+0x10/0x10 [ 43.730198][ C1] ? lock_acquire.part.0+0xeb/0x330 [ 43.730375][ C1] ? process_backlog+0x1f8/0x670 [ 43.730556][ C1] ? __pfx_ip_rcv+0x10/0x10 [ 43.730845][ C1] __netif_receive_skb_one_core+0x166/0x1b0 [ 43.731066][ C1] ? __pfx___netif_receive_skb_one_core+0x10/0x10 [ 43.731291][ C1] ? process_backlog+0x1f8/0x670 [ 43.731581][ C1] ? lock_acquire+0x32/0xc0 [ 43.731764][ C1] ? process_backlog+0x1f8/0x670 [ 43.731944][ C1] process_backlog+0x103/0x670 [ 43.732122][ C1] ? find_held_lock+0x2c/0x110 [ 43.732302][ C1] __napi_poll.constprop.0+0xa2/0x460 [ 43.732595][ C1] net_rx_action+0x49f/0xc00 [ 43.732774][ C1] ? __pfx_net_rx_action+0x10/0x10 [ 43.732961][ C1] __do_softirq+0x1f8/0x5df [ 43.733152][ C1] ? __dev_queue_xmit+0x697/0x16d0 [ 43.733335][ C1] do_softirq+0x4d/0xa0 [ 43.733471][ C1] [ 43.733563][ C1] [ 43.733652][ C1] __local_bh_enable_ip+0xf6/0x120 [ 43.733831][ C1] ? __dev_queue_xmit+0x697/0x16d0 [ 43.734120][ C1] __dev_queue_xmit+0x6ac/0x16d0 [ 43.734300][ C1] ? packet_parse_headers+0x231/0x9d0 [ 43.734487][ C1] ? packet_parse_headers+0x231/0x9d0 [ 43.734667][ C1] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 43.734847][ C1] ? __pfx___dev_queue_xmit+0x10/0x10 [ 43.735138][ C1] ? dev_get_by_index+0x177/0x270 [ 43.735317][ C1] packet_snd+0xd08/0x1840 [ 43.735499][ C1] ? __pfx___lock_release+0x10/0x10 [ 43.735679][ C1] ? __pfx_packet_snd+0x10/0x10 [ 43.735969][ C1] ? __might_fault+0xc3/0x170 [ 43.736153][ C1] ? trace_raw_output_mmap_lock_acquire_returned+0x60/0x1e0 [ 43.736420][ C1] ? __might_fault+0x11b/0x170 [ 43.736600][ C1] __sys_sendto+0x37d/0x410 [ 43.736890][ C1] ? __pfx___sys_sendto+0x10/0x10 [ 43.737072][ C1] ? sock_ioctl+0x3bc/0x590 [ 43.737249][ C1] ? __might_fault+0xc3/0x170 [ 43.737429][ C1] ? trace_rseq_update+0xd2/0x130 [ 43.737721][ C1] ? __rseq_handle_notify_resume+0x354/0x4e0 [ 43.737948][ C1] ? __pfx___rseq_handle_notify_resume+0x10/0x10 [ 43.738174][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 43.738353][ C1] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 43.738693][ C1] do_syscall_64+0xc6/0x1e0 [ 43.738872][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.739095][ C1] RIP: 0033:0x7f35da22c85a [ 43.739283][ 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 [ 43.739920][ C1] RSP: 002b:00007fff105c7ec8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 43.740303][ C1] RAX: ffffffffffffffda RBX: 0000000027fad9d0 RCX: 00007f35da22c85a [ 43.740573][ C1] RDX: 0000000000000062 RSI: 0000000027fad5c2 RDI: 0000000000000005 [ 43.740842][ C1] RBP: 0000000027fad5c2 R08: 00007fff105c7ed0 R09: 0000000000000014 [ 43.741229][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 43.741504][ C1] R13: 0000000000000062 R14: 00007fff105c7ed0 R15: 0000000000000000 [ 43.741775][ C1]