[ 25.663157][ T257] ip (257) used greatest stack depth: 23264 bytes left [ 32.307382][ T320] 8021q: 802.1Q VLAN Support v1.8 [ 32.833124][ T325] gre: GRE over IPv4 demultiplexor driver [ 32.880858][ T325] ip6_gre: GRE over IPv6 tunneling driver [ 44.150895][ T400] GACT probability NOT on [ 44.724683][ C3] [ 44.724820][ C3] ======================================================== [ 44.725091][ C3] WARNING: possible irq lock inversion dependency detected [ 44.725345][ C3] 6.9.0-rc1-virtme #1 Not tainted [ 44.725517][ C3] -------------------------------------------------------- [ 44.725764][ C3] mausezahn/403 just changed the state of lock: [ 44.725982][ C3] ffff88800630a580 (&ndev->lock){++.-}-{2:2}, at: ipv6_get_lladdr+0xa9/0x3e0 [ 44.726292][ C3] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 44.726541][ C3] (&p->alloc_lock){+.+.}-{2:2} [ 44.726545][ C3] [ 44.726545][ C3] [ 44.726545][ C3] and interrupts could create inverse lock ordering between them. [ 44.726545][ C3] [ 44.727181][ C3] [ 44.727181][ C3] other info that might help us debug this: [ 44.727429][ C3] Possible interrupt unsafe locking scenario: [ 44.727429][ C3] [ 44.727674][ C3] CPU0 CPU1 [ 44.727877][ C3] ---- ---- [ 44.728055][ C3] lock(&p->alloc_lock); [ 44.728202][ C3] local_irq_disable(); [ 44.728413][ C3] lock(&ndev->lock); [ 44.728622][ C3] lock(&p->alloc_lock); [ 44.728833][ C3] [ 44.728959][ C3] lock(&ndev->lock); [ 44.729087][ C3] [ 44.729087][ C3] *** DEADLOCK *** [ 44.729087][ C3] [ 44.729341][ C3] 5 locks held by mausezahn/403: [ 44.729512][ C3] #0: ffffffffb45522e0 (rcu_read_lock){....}-{1:2}, at: process_backlog+0x1f8/0x670 [ 44.729816][ C3] #1: ffffffffb45522e0 (rcu_read_lock){....}-{1:2}, at: ip_finish_output2+0x262/0x18e0 [ 44.730119][ C3] #2: ffffffffb4552280 (rcu_read_lock_bh){....}-{1:2}, at: __dev_queue_xmit+0x1dd/0x16d0 [ 44.730427][ C3] #3: ffffffffb45522e0 (rcu_read_lock){....}-{1:2}, at: ip6_finish_output2+0x2c4/0xf80 [ 44.730727][ C3] #4: ffffffffb45522e0 (rcu_read_lock){....}-{1:2}, at: ipv6_get_lladdr+0x39/0x3e0 [ 44.731028][ C3] [ 44.731028][ C3] the shortest dependencies between 2nd lock and 1st lock: [ 44.731347][ C3] -> (&p->alloc_lock){+.+.}-{2:2} { [ 44.731525][ C3] HARDIRQ-ON-W at: [ 44.731659][ C3] __lock_acquire+0x797/0x1570 [ 44.731884][ C3] lock_acquire.part.0+0xeb/0x330 [ 44.732099][ C3] _raw_spin_lock+0x30/0x40 [ 44.732313][ C3] set_mems_allowed+0x1d/0x210 [ 44.732534][ C3] kernel_init_freeable+0x72/0x310 [ 44.732751][ C3] kernel_init+0x20/0x200 [ 44.732968][ C3] ret_from_fork+0x31/0x70 [ 44.733185][ C3] ret_from_fork_asm+0x1a/0x30 [ 44.733406][ C3] SOFTIRQ-ON-W at: [ 44.733553][ C3] __lock_acquire+0x797/0x1570 [ 44.733766][ C3] lock_acquire.part.0+0xeb/0x330 [ 44.733984][ C3] _raw_spin_lock+0x30/0x40 [ 44.734200][ C3] set_mems_allowed+0x1d/0x210 [ 44.734423][ C3] kernel_init_freeable+0x72/0x310 [ 44.734633][ C3] kernel_init+0x20/0x200 [ 44.734845][ C3] ret_from_fork+0x31/0x70 [ 44.735061][ C3] ret_from_fork_asm+0x1a/0x30 [ 44.735272][ C3] INITIAL USE at: [ 44.735398][ C3] __lock_acquire+0x797/0x1570 [ 44.735625][ C3] lock_acquire.part.0+0xeb/0x330 [ 44.735836][ C3] _raw_spin_lock+0x30/0x40 [ 44.736050][ C3] set_mems_allowed+0x1d/0x210 [ 44.736262][ C3] kernel_init_freeable+0x72/0x310 [ 44.736475][ C3] kernel_init+0x20/0x200 [ 44.736684][ C3] ret_from_fork+0x31/0x70 [ 44.736904][ C3] ret_from_fork_asm+0x1a/0x30 [ 44.737117][ C3] } [ 44.737204][ C3] ... key at: [] __key.387+0x0/0x40 [ 44.737464][ C3] ... acquired at: [ 44.737593][ C3] __lock_acquire+0xaf0/0x1570 [ 44.737765][ C3] lock_acquire.part.0+0xeb/0x330 [ 44.737942][ C3] _raw_spin_lock+0x30/0x40 [ 44.738112][ C3] __get_task_comm+0x27/0x70 [ 44.738285][ C3] ref_tracker_alloc+0x2ee/0x490 [ 44.738460][ C3] netdev_get_by_index+0x5e/0x80 [ 44.738628][ C3] fib6_nh_init+0x3d8/0x15b0 [ 44.738797][ C3] ip6_route_info_create+0xf18/0x17d0 [ 44.738968][ C3] addrconf_f6i_alloc+0x265/0x560 [ 44.739139][ C3] __ipv6_dev_ac_inc+0x25f/0xb10 [ 44.739311][ C3] addrconf_join_anycast+0x1c0/0x220 [ 44.739484][ C3] __ipv6_ifa_notify+0x6b3/0xaf0 [ 44.739661][ C3] add_addr+0x1fb/0x2d0 [ 44.739793][ C3] add_v4_addrs+0x400/0x800 [ 44.739962][ C3] addrconf_gre_config+0x69/0x140 [ 44.740132][ C3] addrconf_notify+0xb0e/0xd60 [ 44.740300][ C3] notifier_call_chain+0xcd/0x150 [ 44.740473][ C3] __dev_notify_flags+0xe6/0x250 [ 44.740641][ C3] dev_change_flags+0xec/0x160 [ 44.740812][ C3] do_setlink+0x7d6/0x21e0 [ 44.741028][ C3] __rtnl_newlink+0xaa7/0xd80 [ 44.741202][ C3] rtnl_newlink+0x63/0xa0 [ 44.741374][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.741547][ C3] netlink_rcv_skb+0x130/0x360 [ 44.741727][ C3] netlink_unicast+0x449/0x710 [ 44.741905][ C3] netlink_sendmsg+0x723/0xbe0 [ 44.742077][ C3] ____sys_sendmsg+0x7b2/0xa10 [ 44.742254][ C3] ___sys_sendmsg+0xee/0x170 [ 44.742426][ C3] __sys_sendmsg+0xcd/0x170 [ 44.742607][ C3] do_syscall_64+0xc6/0x1e0 [ 44.742790][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.743007][ C3] [ 44.743097][ C3] -> (&ndev->lock){++.-}-{2:2} { [ 44.743277][ C3] HARDIRQ-ON-W at: [ 44.743413][ C3] __lock_acquire+0x797/0x1570 [ 44.743638][ C3] lock_acquire.part.0+0xeb/0x330 [ 44.743860][ C3] _raw_write_lock_bh+0x38/0x50 [ 44.744088][ C3] addrconf_permanent_addr+0x6e/0x670 [ 44.744306][ C3] addrconf_notify+0x749/0xd60 [ 44.744635][ C3] notifier_call_chain+0xcd/0x150 [ 44.744853][ C3] __dev_notify_flags+0xe6/0x250 [ 44.745067][ C3] dev_change_flags+0xec/0x160 [ 44.745392][ C3] do_setlink+0x7d6/0x21e0 [ 44.745613][ C3] __rtnl_newlink+0xaa7/0xd80 [ 44.745833][ C3] rtnl_newlink+0x63/0xa0 [ 44.746046][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.746374][ C3] netlink_rcv_skb+0x130/0x360 [ 44.746587][ C3] netlink_unicast+0x449/0x710 [ 44.746800][ C3] netlink_sendmsg+0x723/0xbe0 [ 44.747125][ C3] ____sys_sendmsg+0x7b2/0xa10 [ 44.747350][ C3] ___sys_sendmsg+0xee/0x170 [ 44.747564][ C3] __sys_sendmsg+0xcd/0x170 [ 44.747904][ C3] do_syscall_64+0xc6/0x1e0 [ 44.748122][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.748378][ C3] HARDIRQ-ON-R at: [ 44.748507][ C3] __lock_acquire+0x797/0x1570 [ 44.748842][ C3] lock_acquire.part.0+0xeb/0x330 [ 44.749065][ C3] _raw_read_lock_bh+0x44/0x80 [ 44.749280][ C3] inet6_fill_ifla6_attrs+0x516/0x740 [ 44.749605][ C3] inet6_fill_link_af+0x5e/0xe0 [ 44.749818][ C3] rtnl_fill_ifinfo+0x1612/0x29e0 [ 44.750033][ C3] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 44.750249][ C3] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 44.750622][ C3] rtmsg_ifinfo+0x5b/0xa0 [ 44.750833][ C3] register_netdevice+0x1177/0x1690 [ 44.751050][ C3] register_netdev+0x20/0x40 [ 44.751381][ C3] sit_init_net+0x250/0x4f0 [ 44.751626][ C3] ops_init+0x9b/0x560 [ 44.751802][ C3] register_pernet_operations+0x2db/0x710 [ 44.752177][ C3] register_pernet_device+0x2a/0x60 [ 44.752393][ C3] sit_init+0x23/0xe0 [ 44.752575][ C3] do_one_initcall+0x8d/0x1e0 [ 44.752794][ C3] do_initcalls+0x1b2/0x3e0 [ 44.753127][ C3] kernel_init_freeable+0x232/0x310 [ 44.753351][ C3] kernel_init+0x20/0x200 [ 44.753576][ C3] ret_from_fork+0x31/0x70 [ 44.753919][ C3] ret_from_fork_asm+0x1a/0x30 [ 44.754133][ C3] IN-SOFTIRQ-R at: [ 44.754269][ C3] __lock_acquire+0x797/0x1570 [ 44.754495][ C3] lock_acquire.part.0+0xeb/0x330 [ 44.754711][ C3] _raw_read_lock_bh+0x44/0x80 [ 44.754936][ C3] ipv6_get_lladdr+0xa9/0x3e0 [ 44.755158][ C3] ndisc_send_ns+0xe7/0x100 [ 44.755381][ C3] ndisc_solicit+0x2ae/0x4d0 [ 44.755712][ C3] neigh_probe+0xaa/0xf0 [ 44.755932][ C3] __neigh_event_send+0x7af/0xfe0 [ 44.756149][ C3] neigh_resolve_output+0x470/0x7c0 [ 44.756483][ C3] ip6_finish_output2+0x4ab/0xf80 [ 44.756702][ C3] ip6_finish_output+0x4ed/0xd30 [ 44.756915][ C3] ip6_output+0x1f3/0x770 [ 44.757254][ C3] ip6tunnel_xmit.constprop.0+0x16b/0x360 [ip6_tunnel] [ 44.757519][ C3] ip6_tnl_xmit+0x1266/0x3490 [ip6_tunnel] [ 44.757788][ C3] __gre6_xmit+0x706/0x1960 [ip6_gre] [ 44.758144][ C3] ip6gre_tunnel_xmit+0x920/0xf10 [ip6_gre] [ 44.758411][ C3] dev_hard_start_xmit+0x10e/0x360 [ 44.758636][ C3] __dev_queue_xmit+0xe69/0x16d0 [ 44.758853][ C3] ip_finish_output2+0x616/0x18e0 [ 44.759192][ C3] ip_output+0x16b/0x4f0 [ 44.759408][ C3] NF_HOOK.constprop.0+0x7e/0x320 [ 44.759625][ C3] ip_rcv+0x62f/0x740 [ 44.759929][ C3] __netif_receive_skb_one_core+0x166/0x1b0 [ 44.760188][ C3] process_backlog+0x103/0x670 [ 44.760404][ C3] __napi_poll.constprop.0+0xa2/0x460 [ 44.760626][ C3] net_rx_action+0x49f/0xc00 [ 44.760840][ C3] __do_softirq+0x1f8/0x5df [ 44.761052][ C3] do_softirq+0x4d/0xa0 [ 44.761276][ C3] __local_bh_enable_ip+0xf6/0x120 [ 44.761608][ C3] __dev_queue_xmit+0x6ac/0x16d0 [ 44.761821][ C3] packet_snd+0xd08/0x1840 [ 44.762047][ C3] __sys_sendto+0x37d/0x410 [ 44.762492][ C3] __x64_sys_sendto+0xe0/0x1c0 [ 44.762709][ C3] do_syscall_64+0xc6/0x1e0 [ 44.762924][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.763303][ C3] INITIAL USE at: [ 44.763433][ C3] __lock_acquire+0x797/0x1570 [ 44.763649][ C3] lock_acquire.part.0+0xeb/0x330 [ 44.763860][ C3] _raw_write_lock_bh+0x38/0x50 [ 44.764195][ C3] addrconf_permanent_addr+0x6e/0x670 [ 44.764410][ C3] addrconf_notify+0x749/0xd60 [ 44.764626][ C3] notifier_call_chain+0xcd/0x150 [ 44.764851][ C3] __dev_notify_flags+0xe6/0x250 [ 44.765192][ C3] dev_change_flags+0xec/0x160 [ 44.765405][ C3] do_setlink+0x7d6/0x21e0 [ 44.765635][ C3] __rtnl_newlink+0xaa7/0xd80 [ 44.765970][ C3] rtnl_newlink+0x63/0xa0 [ 44.766189][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.766405][ C3] netlink_rcv_skb+0x130/0x360 [ 44.766621][ C3] netlink_unicast+0x449/0x710 [ 44.766843][ C3] netlink_sendmsg+0x723/0xbe0 [ 44.767058][ C3] ____sys_sendmsg+0x7b2/0xa10 [ 44.767277][ C3] ___sys_sendmsg+0xee/0x170 [ 44.767610][ C3] __sys_sendmsg+0xcd/0x170 [ 44.767834][ C3] do_syscall_64+0xc6/0x1e0 [ 44.768069][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.768468][ C3] INITIAL READ USE at: [ 44.768608][ C3] __lock_acquire+0x797/0x1570 [ 44.768827][ C3] lock_acquire.part.0+0xeb/0x330 [ 44.769045][ C3] _raw_read_lock_bh+0x44/0x80 [ 44.769384][ C3] inet6_fill_ifla6_attrs+0x516/0x740 [ 44.769645][ C3] inet6_fill_link_af+0x5e/0xe0 [ 44.769863][ C3] rtnl_fill_ifinfo+0x1612/0x29e0 [ 44.770203][ C3] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 44.770468][ C3] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 44.770734][ C3] rtmsg_ifinfo+0x5b/0xa0 [ 44.771076][ C3] register_netdevice+0x1177/0x1690 [ 44.771340][ C3] register_netdev+0x20/0x40 [ 44.771561][ C3] sit_init_net+0x250/0x4f0 [ 44.771781][ C3] ops_init+0x9b/0x560 [ 44.771998][ C3] register_pernet_operations+0x2db/0x710 [ 44.772259][ C3] register_pernet_device+0x2a/0x60 [ 44.772639][ C3] sit_init+0x23/0xe0 [ 44.772859][ C3] do_one_initcall+0x8d/0x1e0 [ 44.773074][ C3] do_initcalls+0x1b2/0x3e0 [ 44.773298][ C3] kernel_init_freeable+0x232/0x310 [ 44.773676][ C3] kernel_init+0x20/0x200 [ 44.773938][ C3] ret_from_fork+0x31/0x70 [ 44.774258][ C3] ret_from_fork_asm+0x1a/0x30 [ 44.774791][ C3] } [ 44.774933][ C3] ... key at: [] __key.37+0x0/0x40 [ 44.775352][ C3] ... acquired at: [ 44.775556][ C3] mark_lock+0x28d/0x3e0 [ 44.776043][ C3] mark_usage+0xd9/0x2a0 [ 44.776324][ C3] __lock_acquire+0x797/0x1570 [ 44.776600][ C3] lock_acquire.part.0+0xeb/0x330 [ 44.776890][ C3] _raw_read_lock_bh+0x44/0x80 [ 44.777376][ C3] ipv6_get_lladdr+0xa9/0x3e0 [ 44.777655][ C3] ndisc_send_ns+0xe7/0x100 [ 44.777949][ C3] ndisc_solicit+0x2ae/0x4d0 [ 44.778219][ C3] neigh_probe+0xaa/0xf0 [ 44.778428][ C3] __neigh_event_send+0x7af/0xfe0 [ 44.778733][ C3] neigh_resolve_output+0x470/0x7c0 [ 44.778911][ C3] ip6_finish_output2+0x4ab/0xf80 [ 44.779081][ C3] ip6_finish_output+0x4ed/0xd30 [ 44.779259][ C3] ip6_output+0x1f3/0x770 [ 44.779552][ C3] ip6tunnel_xmit.constprop.0+0x16b/0x360 [ip6_tunnel] [ 44.779771][ C3] ip6_tnl_xmit+0x1266/0x3490 [ip6_tunnel] [ 44.779990][ C3] __gre6_xmit+0x706/0x1960 [ip6_gre] [ 44.780168][ C3] ip6gre_tunnel_xmit+0x920/0xf10 [ip6_gre] [ 44.780501][ C3] dev_hard_start_xmit+0x10e/0x360 [ 44.780693][ C3] __dev_queue_xmit+0xe69/0x16d0 [ 44.780883][ C3] ip_finish_output2+0x616/0x18e0 [ 44.781060][ C3] ip_output+0x16b/0x4f0 [ 44.781349][ C3] NF_HOOK.constprop.0+0x7e/0x320 [ 44.781530][ C3] ip_rcv+0x62f/0x740 [ 44.781666][ C3] __netif_receive_skb_one_core+0x166/0x1b0 [ 44.781889][ C3] process_backlog+0x103/0x670 [ 44.782180][ C3] __napi_poll.constprop.0+0xa2/0x460 [ 44.782352][ C3] net_rx_action+0x49f/0xc00 [ 44.782546][ C3] __do_softirq+0x1f8/0x5df [ 44.782721][ C3] do_softirq+0x4d/0xa0 [ 44.782978][ C3] __local_bh_enable_ip+0xf6/0x120 [ 44.783188][ C3] __dev_queue_xmit+0x6ac/0x16d0 [ 44.783365][ C3] packet_snd+0xd08/0x1840 [ 44.783544][ C3] __sys_sendto+0x37d/0x410 [ 44.783746][ C3] __x64_sys_sendto+0xe0/0x1c0 [ 44.783918][ C3] do_syscall_64+0xc6/0x1e0 [ 44.784097][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.784316][ C3] [ 44.784403][ C3] [ 44.784403][ C3] stack backtrace: [ 44.784762][ C3] CPU: 3 PID: 403 Comm: mausezahn Not tainted 6.9.0-rc1-virtme #1 [ 44.785024][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 44.785530][ C3] Call Trace: [ 44.785663][ C3] [ 44.785755][ C3] dump_stack_lvl+0x82/0xd0 [ 44.785943][ C3] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 44.786162][ C3] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 44.786499][ C3] ? __pfx_usage_skip+0x10/0x10 [ 44.786671][ C3] ? __pfx_usage_match+0x10/0x10 [ 44.786842][ C3] ? arch_stack_walk+0xa2/0xf0 [ 44.787019][ C3] mark_lock_irq+0x4cd/0xa10 [ 44.787301][ C3] ? __pfx_mark_lock_irq+0x10/0x10 [ 44.787487][ C3] ? stack_trace_save+0x94/0xd0 [ 44.787663][ C3] ? save_trace+0x8f/0x5b0 [ 44.787853][ C3] mark_lock+0x28d/0x3e0 [ 44.787990][ C3] mark_usage+0xd9/0x2a0 [ 44.788232][ C3] __lock_acquire+0x797/0x1570 [ 44.788410][ C3] lock_acquire.part.0+0xeb/0x330 [ 44.788591][ C3] ? ipv6_get_lladdr+0xa9/0x3e0 [ 44.788772][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 44.789059][ C3] ? trace_lock_acquire+0x135/0x1c0 [ 44.789236][ C3] ? ipv6_get_lladdr+0xa9/0x3e0 [ 44.789411][ C3] ? lock_acquire+0x32/0xc0 [ 44.789587][ C3] ? ipv6_get_lladdr+0xa9/0x3e0 [ 44.789873][ C3] _raw_read_lock_bh+0x44/0x80 [ 44.790049][ C3] ? ipv6_get_lladdr+0xa9/0x3e0 [ 44.790222][ C3] ipv6_get_lladdr+0xa9/0x3e0 [ 44.790392][ C3] ndisc_send_ns+0xe7/0x100 [ 44.790576][ C3] ? __pfx_ndisc_send_ns+0x10/0x10 [ 44.790750][ C3] ? __ipv6_chk_addr_and_flags+0x393/0x650 [ 44.790983][ C3] ndisc_solicit+0x2ae/0x4d0 [ 44.791151][ C3] ? __pfx_ndisc_solicit+0x10/0x10 [ 44.791323][ C3] ? neigh_probe+0x57/0xf0 [ 44.791727][ C3] neigh_probe+0xaa/0xf0 [ 44.791858][ C3] __neigh_event_send+0x7af/0xfe0 [ 44.792029][ C3] ? do_raw_write_lock+0xe1/0x3b0 [ 44.792200][ C3] ? __pfx_do_raw_write_lock+0x10/0x10 [ 44.792491][ C3] neigh_resolve_output+0x470/0x7c0 [ 44.792667][ C3] ? __local_bh_enable_ip+0xa6/0x120 [ 44.792843][ C3] ? ___neigh_create+0x7c6/0xe10 [ 44.793016][ C3] ip6_finish_output2+0x4ab/0xf80 [ 44.793297][ C3] ip6_finish_output+0x4ed/0xd30 [ 44.793476][ C3] ? __pfx_flow_hash_from_keys+0x10/0x10 [ 44.793655][ C3] ip6_output+0x1f3/0x770 [ 44.793786][ C3] ? __pfx_ip6_output+0x10/0x10 [ 44.793956][ C3] ? ip6_make_flowlabel.constprop.0+0x1c4/0x2f0 [ip6_tunnel] [ 44.794332][ C3] ? __pfx_ip6_make_flowlabel.constprop.0+0x10/0x10 [ip6_tunnel] [ 44.794600][ C3] ? ip6_local_out+0x25/0x3b0 [ 44.794774][ C3] ip6tunnel_xmit.constprop.0+0x16b/0x360 [ip6_tunnel] [ 44.795144][ C3] ip6_tnl_xmit+0x1266/0x3490 [ip6_tunnel] [ 44.795372][ C3] ? __kasan_kmalloc+0x7f/0x90 [ 44.795579][ C3] ? trace_kmalloc+0x2a/0xe0 [ 44.795763][ C3] ? sk_getsockopt+0x2048/0x2c40 [ 44.796055][ C3] ? __pfx_ip6_tnl_xmit+0x10/0x10 [ip6_tunnel] [ 44.796290][ C3] ? pskb_expand_head+0x4ac/0x1020 [ 44.796481][ C3] ? __pfx_pskb_expand_head+0x10/0x10 [ 44.796660][ C3] ? __ipv6_chk_addr_and_flags+0x38e/0x650 [ 44.796884][ C3] ? __gre6_xmit+0x706/0x1960 [ip6_gre] [ 44.797069][ C3] __gre6_xmit+0x706/0x1960 [ip6_gre] [ 44.797254][ C3] ? __pfx___gre6_xmit+0x10/0x10 [ip6_gre] [ 44.797495][ C3] ip6gre_tunnel_xmit+0x920/0xf10 [ip6_gre] [ 44.797833][ C3] ? __pfx_ip6gre_tunnel_xmit+0x10/0x10 [ip6_gre] [ 44.798046][ C3] ? find_held_lock+0x2c/0x110 [ 44.798219][ C3] ? __lock_release+0x103/0x460 [ 44.798508][ C3] ? dev_queue_xmit_nit+0x775/0xad0 [ 44.798680][ C3] ? dev_queue_xmit_nit+0x759/0xad0 [ 44.798846][ C3] ? __pfx_qdisc_pkt_len_init+0x10/0x10 [ 44.799015][ C3] ? dev_queue_xmit_nit+0x775/0xad0 [ 44.799186][ C3] dev_hard_start_xmit+0x10e/0x360 [ 44.799476][ C3] ? validate_xmit_skb.constprop.0+0x2a/0x4f0 [ 44.799686][ C3] __dev_queue_xmit+0xe69/0x16d0 [ 44.799856][ C3] ? do_raw_write_lock+0x122/0x3b0 [ 44.800023][ C3] ? __pfx_do_raw_write_lock+0x10/0x10 [ 44.800306][ C3] ? __pfx___dev_queue_xmit+0x10/0x10 [ 44.800482][ C3] ? ___neigh_create+0x7c6/0xe10 [ 44.800652][ C3] ? ___neigh_create+0x7c6/0xe10 [ 44.800825][ C3] ip_finish_output2+0x616/0x18e0 [ 44.801108][ C3] ? lockdep_hardirqs_on_prepare.part.0+0x14f/0x370 [ 44.801319][ C3] ? __pfx_ip_finish_output2+0x10/0x10 [ 44.801496][ C3] ? __ip_finish_output+0x10f/0x770 [ 44.801665][ C3] ip_output+0x16b/0x4f0 [ 44.801903][ C3] ? __pfx_ip_output+0x10/0x10 [ 44.802074][ C3] ? pskb_expand_head+0x485/0x1020 [ 44.802246][ C3] ? ip_route_input_noref+0x10e/0x230 [ 44.802416][ C3] NF_HOOK.constprop.0+0x7e/0x320 [ 44.802588][ C3] ? __pfx_NF_HOOK.constprop.0+0x10/0x10 [ 44.802756][ C3] ? ip_forward+0xdc8/0x1a10 [ 44.802930][ C3] ip_rcv+0x62f/0x740 [ 44.803057][ C3] ? __pfx_ip_rcv+0x10/0x10 [ 44.803242][ C3] ? lock_acquire.part.0+0xeb/0x330 [ 44.803534][ C3] ? process_backlog+0x1f8/0x670 [ 44.803702][ C3] ? __pfx_ip_rcv+0x10/0x10 [ 44.803871][ C3] __netif_receive_skb_one_core+0x166/0x1b0 [ 44.804077][ C3] ? __pfx___netif_receive_skb_one_core+0x10/0x10 [ 44.804402][ C3] ? process_backlog+0x1f8/0x670 [ 44.804577][ C3] ? lock_acquire+0x32/0xc0 [ 44.804745][ C3] ? process_backlog+0x1f8/0x670 [ 44.804912][ C3] process_backlog+0x103/0x670 [ 44.805305][ C3] ? find_held_lock+0x2c/0x110 [ 44.805504][ C3] __napi_poll.constprop.0+0xa2/0x460 [ 44.805679][ C3] net_rx_action+0x49f/0xc00 [ 44.805853][ C3] ? __pfx_net_rx_action+0x10/0x10 [ 44.806136][ C3] __do_softirq+0x1f8/0x5df [ 44.806308][ C3] ? __dev_queue_xmit+0x697/0x16d0 [ 44.806491][ C3] do_softirq+0x4d/0xa0 [ 44.806621][ C3] [ 44.806710][ C3] [ 44.806797][ C3] __local_bh_enable_ip+0xf6/0x120 [ 44.807084][ C3] ? __dev_queue_xmit+0x697/0x16d0 [ 44.807268][ C3] __dev_queue_xmit+0x6ac/0x16d0 [ 44.807438][ C3] ? packet_parse_headers+0x231/0x9d0 [ 44.807616][ C3] ? packet_parse_headers+0x231/0x9d0 [ 44.807792][ C3] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 44.807975][ C3] ? __pfx___dev_queue_xmit+0x10/0x10 [ 44.808161][ C3] ? dev_get_by_index+0x177/0x270 [ 44.808334][ C3] packet_snd+0xd08/0x1840 [ 44.808622][ C3] ? __pfx___lock_release+0x10/0x10 [ 44.808808][ C3] ? __pfx_packet_snd+0x10/0x10 [ 44.808981][ C3] ? __might_fault+0xc3/0x170 [ 44.809160][ C3] ? trace_raw_output_mmap_lock_acquire_returned+0x60/0x1e0 [ 44.809535][ C3] ? __might_fault+0x11b/0x170 [ 44.809709][ C3] __sys_sendto+0x37d/0x410 [ 44.809888][ C3] ? __pfx___sys_sendto+0x10/0x10 [ 44.810063][ C3] ? sock_ioctl+0x3bc/0x590 [ 44.810397][ C3] ? __might_fault+0xc3/0x170 [ 44.810681][ C3] ? trace_rseq_update+0xd2/0x130 [ 44.810958][ C3] ? __rseq_handle_notify_resume+0x354/0x4e0 [ 44.811295][ C3] ? __pfx___rseq_handle_notify_resume+0x10/0x10 [ 44.811829][ C3] __x64_sys_sendto+0xe0/0x1c0 [ 44.812110][ C3] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 44.812468][ C3] do_syscall_64+0xc6/0x1e0 [ 44.812760][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.813318][ C3] RIP: 0033:0x7f60cdc4385a [ 44.813618][ 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 [ 44.814856][ C3] RSP: 002b:00007ffc4e0d2c18 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 44.815294][ C3] RAX: ffffffffffffffda RBX: 000000003de959d0 RCX: 00007f60cdc4385a [ 44.815730][ C3] RDX: 0000000000000062 RSI: 000000003de955c2 RDI: 0000000000000005 [ 44.816368][ C3] RBP: 000000003de955c2 R08: 00007ffc4e0d2c20 R09: 0000000000000014 [ 44.816797][ C3] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 44.817201][ C3] R13: 0000000000000062 R14: 00007ffc4e0d2c20 R15: 0000000000000000 [ 44.817471][ C3]