[ 24.065671][ T234] ip (234) used greatest stack depth: 23744 bytes left [ 31.491188][ T319] 8021q: 802.1Q VLAN Support v1.8 [ 32.004273][ T324] gre: GRE over IPv4 demultiplexor driver [ 32.053374][ T324] ip6_gre: GRE over IPv6 tunneling driver [ 34.955908][ T354] ip (354) used greatest stack depth: 23320 bytes left [ 43.285711][ T398] GACT probability NOT on [ 43.876700][ C0] [ 43.876822][ C0] ======================================================== [ 43.877070][ C0] WARNING: possible irq lock inversion dependency detected [ 43.877310][ C0] 6.9.0-rc1-virtme #1 Not tainted [ 43.877472][ C0] -------------------------------------------------------- [ 43.877724][ C0] mausezahn/401 just changed the state of lock: [ 43.877935][ C0] ffff8880075a2580 (&ndev->lock){++.-}-{2:2}, at: ipv6_get_lladdr+0xa9/0x3e0 [ 43.878241][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 43.878487][ C0] (&p->alloc_lock){+.+.}-{2:2} [ 43.878491][ C0] [ 43.878491][ C0] [ 43.878491][ C0] and interrupts could create inverse lock ordering between them. [ 43.878491][ C0] [ 43.879138][ C0] [ 43.879138][ C0] other info that might help us debug this: [ 43.879390][ C0] Possible interrupt unsafe locking scenario: [ 43.879390][ C0] [ 43.879637][ C0] CPU0 CPU1 [ 43.879802][ C0] ---- ---- [ 43.879969][ C0] lock(&p->alloc_lock); [ 43.880098][ C0] local_irq_disable(); [ 43.880338][ C0] lock(&ndev->lock); [ 43.880549][ C0] lock(&p->alloc_lock); [ 43.880792][ C0] [ 43.880919][ C0] lock(&ndev->lock); [ 43.881049][ C0] [ 43.881049][ C0] *** DEADLOCK *** [ 43.881049][ C0] [ 43.881301][ C0] 5 locks held by mausezahn/401: [ 43.881467][ C0] #0: ffffffff8f9522e0 (rcu_read_lock){....}-{1:2}, at: process_backlog+0x1f8/0x670 [ 43.881765][ C0] #1: ffffffff8f9522e0 (rcu_read_lock){....}-{1:2}, at: ip_finish_output2+0x262/0x18e0 [ 43.882060][ C0] #2: ffffffff8f952280 (rcu_read_lock_bh){....}-{1:2}, at: __dev_queue_xmit+0x1dd/0x16d0 [ 43.882357][ C0] #3: ffffffff8f9522e0 (rcu_read_lock){....}-{1:2}, at: ip6_finish_output2+0x2c4/0xf80 [ 43.882655][ C0] #4: ffffffff8f9522e0 (rcu_read_lock){....}-{1:2}, at: ipv6_get_lladdr+0x39/0x3e0 [ 43.882952][ C0] [ 43.882952][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 43.883239][ C0] -> (&p->alloc_lock){+.+.}-{2:2} { [ 43.883411][ C0] HARDIRQ-ON-W at: [ 43.883537][ C0] __lock_acquire+0x797/0x1570 [ 43.883753][ C0] lock_acquire.part.0+0xeb/0x330 [ 43.883961][ C0] _raw_spin_lock+0x30/0x40 [ 43.884174][ C0] set_mems_allowed+0x1d/0x210 [ 43.884387][ C0] kernel_init_freeable+0x72/0x310 [ 43.884596][ C0] kernel_init+0x20/0x200 [ 43.884832][ C0] ret_from_fork+0x31/0x70 [ 43.885048][ C0] ret_from_fork_asm+0x1a/0x30 [ 43.885257][ C0] SOFTIRQ-ON-W at: [ 43.885382][ C0] __lock_acquire+0x797/0x1570 [ 43.885592][ C0] lock_acquire.part.0+0xeb/0x330 [ 43.885801][ C0] _raw_spin_lock+0x30/0x40 [ 43.886009][ C0] set_mems_allowed+0x1d/0x210 [ 43.886219][ C0] kernel_init_freeable+0x72/0x310 [ 43.886431][ C0] kernel_init+0x20/0x200 [ 43.886657][ C0] ret_from_fork+0x31/0x70 [ 43.886871][ C0] ret_from_fork_asm+0x1a/0x30 [ 43.887081][ C0] INITIAL USE at: [ 43.887206][ C0] __lock_acquire+0x797/0x1570 [ 43.887414][ C0] lock_acquire.part.0+0xeb/0x330 [ 43.887627][ C0] _raw_spin_lock+0x30/0x40 [ 43.887837][ C0] set_mems_allowed+0x1d/0x210 [ 43.888044][ C0] kernel_init_freeable+0x72/0x310 [ 43.888252][ C0] kernel_init+0x20/0x200 [ 43.888574][ C0] ret_from_fork+0x31/0x70 [ 43.888811][ C0] ret_from_fork_asm+0x1a/0x30 [ 43.889029][ C0] } [ 43.889115][ C0] ... key at: [] __key.387+0x0/0x40 [ 43.889474][ C0] ... acquired at: [ 43.889603][ C0] __lock_acquire+0xaf0/0x1570 [ 43.889793][ C0] lock_acquire.part.0+0xeb/0x330 [ 43.889960][ C0] _raw_spin_lock+0x30/0x40 [ 43.890237][ C0] __get_task_comm+0x27/0x70 [ 43.890407][ C0] ref_tracker_alloc+0x2ee/0x490 [ 43.890592][ C0] netdev_get_by_index+0x5e/0x80 [ 43.890770][ C0] fib6_nh_init+0x3d8/0x15b0 [ 43.890950][ C0] ip6_route_info_create+0xf18/0x17d0 [ 43.891240][ C0] addrconf_f6i_alloc+0x265/0x560 [ 43.891419][ C0] __ipv6_dev_ac_inc+0x25f/0xb10 [ 43.891593][ C0] addrconf_join_anycast+0x1c0/0x220 [ 43.891770][ C0] __ipv6_ifa_notify+0x6b3/0xaf0 [ 43.892062][ C0] addrconf_dad_completed+0x12b/0xe20 [ 43.892244][ C0] addrconf_dad_work+0x38c/0xab0 [ 43.892422][ C0] process_one_work+0xe2c/0x1730 [ 43.892602][ C0] worker_thread+0x587/0xd30 [ 43.892778][ C0] kthread+0x28a/0x350 [ 43.892913][ C0] ret_from_fork+0x31/0x70 [ 43.893092][ C0] ret_from_fork_asm+0x1a/0x30 [ 43.893271][ C0] [ 43.893364][ C0] -> (&ndev->lock){++.-}-{2:2} { [ 43.893664][ C0] HARDIRQ-ON-W at: [ 43.893826][ C0] __lock_acquire+0x797/0x1570 [ 43.894048][ C0] lock_acquire.part.0+0xeb/0x330 [ 43.894273][ C0] _raw_write_lock_bh+0x38/0x50 [ 43.894610][ C0] addrconf_permanent_addr+0x6e/0x670 [ 43.894832][ C0] addrconf_notify+0x749/0xd60 [ 43.895057][ C0] notifier_call_chain+0xcd/0x150 [ 43.895397][ C0] __dev_notify_flags+0xe6/0x250 [ 43.895622][ C0] dev_change_flags+0xec/0x160 [ 43.895844][ C0] do_setlink+0x7d6/0x21e0 [ 43.896069][ C0] __rtnl_newlink+0xaa7/0xd80 [ 43.896403][ C0] rtnl_newlink+0x63/0xa0 [ 43.896636][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.896862][ C0] netlink_rcv_skb+0x130/0x360 [ 43.897198][ C0] netlink_unicast+0x449/0x710 [ 43.897422][ C0] netlink_sendmsg+0x723/0xbe0 [ 43.897644][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 43.897897][ C0] ___sys_sendmsg+0xee/0x170 [ 43.898242][ C0] __sys_sendmsg+0xcd/0x170 [ 43.898466][ C0] do_syscall_64+0xc6/0x1e0 [ 43.898697][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.898966][ C0] HARDIRQ-ON-R at: [ 43.899101][ C0] __lock_acquire+0x797/0x1570 [ 43.899326][ C0] lock_acquire.part.0+0xeb/0x330 [ 43.899551][ C0] _raw_read_lock_bh+0x44/0x80 [ 43.899890][ C0] inet6_fill_ifla6_attrs+0x516/0x740 [ 43.900114][ C0] inet6_fill_link_af+0x5e/0xe0 [ 43.900343][ C0] rtnl_fill_ifinfo+0x1612/0x29e0 [ 43.900793][ C0] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 43.901018][ C0] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 43.901284][ C0] rtmsg_ifinfo+0x5b/0xa0 [ 43.901618][ C0] register_netdevice+0x1177/0x1690 [ 43.901870][ C0] register_netdev+0x20/0x40 [ 43.902095][ C0] sit_init_net+0x250/0x4f0 [ 43.902321][ C0] ops_init+0x9b/0x560 [ 43.902615][ C0] register_pernet_operations+0x2db/0x710 [ 43.902880][ C0] register_pernet_device+0x2a/0x60 [ 43.903104][ C0] sit_init+0x23/0xe0 [ 43.903395][ C0] do_one_initcall+0x8d/0x1e0 [ 43.903621][ C0] do_initcalls+0x1b2/0x3e0 [ 43.903846][ C0] kernel_init_freeable+0x232/0x310 [ 43.904070][ C0] kernel_init+0x20/0x200 [ 43.904406][ C0] ret_from_fork+0x31/0x70 [ 43.904629][ C0] ret_from_fork_asm+0x1a/0x30 [ 43.904853][ C0] IN-SOFTIRQ-R at: [ 43.905098][ C0] __lock_acquire+0x797/0x1570 [ 43.905328][ C0] lock_acquire.part.0+0xeb/0x330 [ 43.905549][ C0] _raw_read_lock_bh+0x44/0x80 [ 43.905774][ C0] ipv6_get_lladdr+0xa9/0x3e0 [ 43.906112][ C0] ndisc_send_ns+0xe7/0x100 [ 43.906336][ C0] ndisc_solicit+0x2ae/0x4d0 [ 43.906557][ C0] neigh_probe+0xaa/0xf0 [ 43.906793][ C0] __neigh_event_send+0x7af/0xfe0 [ 43.907020][ C0] neigh_resolve_output+0x470/0x7c0 [ 43.907242][ C0] ip6_finish_output2+0x4ab/0xf80 [ 43.907466][ C0] ip6_finish_output+0x4ed/0xd30 [ 43.907799][ C0] ip6_output+0x1f3/0x770 [ 43.908023][ C0] ip6tunnel_xmit.constprop.0+0x16b/0x360 [ip6_tunnel] [ 43.908303][ C0] ip6_tnl_xmit+0x1266/0x3490 [ip6_tunnel] [ 43.908686][ C0] __gre6_xmit+0x706/0x1960 [ip6_gre] [ 43.908915][ C0] ip6gre_tunnel_xmit+0x920/0xf10 [ip6_gre] [ 43.909184][ C0] dev_hard_start_xmit+0x10e/0x360 [ 43.909523][ C0] __dev_queue_xmit+0xe69/0x16d0 [ 43.909747][ C0] ip_finish_output2+0x616/0x18e0 [ 43.909975][ C0] ip_output+0x16b/0x4f0 [ 43.910309][ C0] NF_HOOK.constprop.0+0x7e/0x320 [ 43.910534][ C0] ip_rcv+0x62f/0x740 [ 43.910713][ C0] __netif_receive_skb_one_core+0x166/0x1b0 [ 43.910976][ C0] process_backlog+0x103/0x670 [ 43.911313][ C0] __napi_poll.constprop.0+0xa2/0x460 [ 43.911541][ C0] net_rx_action+0x49f/0xc00 [ 43.911790][ C0] __do_softirq+0x1f8/0x5df [ 43.912136][ C0] do_softirq+0x4d/0xa0 [ 43.912359][ C0] __local_bh_enable_ip+0xf6/0x120 [ 43.912583][ C0] __dev_queue_xmit+0x6ac/0x16d0 [ 43.912806][ C0] packet_snd+0xd08/0x1840 [ 43.913035][ C0] __sys_sendto+0x37d/0x410 [ 43.913257][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 43.913486][ C0] do_syscall_64+0xc6/0x1e0 [ 43.913712][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.913980][ C0] INITIAL USE at: [ 43.914113][ C0] __lock_acquire+0x797/0x1570 [ 43.914560][ C0] lock_acquire.part.0+0xeb/0x330 [ 43.914789][ C0] _raw_write_lock_bh+0x38/0x50 [ 43.915011][ C0] addrconf_permanent_addr+0x6e/0x670 [ 43.915233][ C0] addrconf_notify+0x749/0xd60 [ 43.915567][ C0] notifier_call_chain+0xcd/0x150 [ 43.915817][ C0] __dev_notify_flags+0xe6/0x250 [ 43.916036][ C0] dev_change_flags+0xec/0x160 [ 43.916375][ C0] do_setlink+0x7d6/0x21e0 [ 43.916619][ C0] __rtnl_newlink+0xaa7/0xd80 [ 43.916841][ C0] rtnl_newlink+0x63/0xa0 [ 43.917061][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.917392][ C0] netlink_rcv_skb+0x130/0x360 [ 43.917614][ C0] netlink_unicast+0x449/0x710 [ 43.917856][ C0] netlink_sendmsg+0x723/0xbe0 [ 43.918212][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 43.918435][ C0] ___sys_sendmsg+0xee/0x170 [ 43.918659][ C0] __sys_sendmsg+0xcd/0x170 [ 43.918997][ C0] do_syscall_64+0xc6/0x1e0 [ 43.919218][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.919481][ C0] INITIAL READ USE at: [ 43.919610][ C0] __lock_acquire+0x797/0x1570 [ 43.919826][ C0] lock_acquire.part.0+0xeb/0x330 [ 43.920064][ C0] _raw_read_lock_bh+0x44/0x80 [ 43.920292][ C0] inet6_fill_ifla6_attrs+0x516/0x740 [ 43.920677][ C0] inet6_fill_link_af+0x5e/0xe0 [ 43.920923][ C0] rtnl_fill_ifinfo+0x1612/0x29e0 [ 43.921135][ C0] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 43.921540][ C0] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 43.921839][ C0] rtmsg_ifinfo+0x5b/0xa0 [ 43.922060][ C0] register_netdevice+0x1177/0x1690 [ 43.922454][ C0] register_netdev+0x20/0x40 [ 43.922734][ C0] sit_init_net+0x250/0x4f0 [ 43.922965][ C0] ops_init+0x9b/0x560 [ 43.923221][ C0] register_pernet_operations+0x2db/0x710 [ 43.923625][ C0] register_pernet_device+0x2a/0x60 [ 43.923879][ C0] sit_init+0x23/0xe0 [ 43.924111][ C0] do_one_initcall+0x8d/0x1e0 [ 43.924432][ C0] do_initcalls+0x1b2/0x3e0 [ 43.924646][ C0] kernel_init_freeable+0x232/0x310 [ 43.924893][ C0] kernel_init+0x20/0x200 [ 43.925219][ C0] ret_from_fork+0x31/0x70 [ 43.925428][ C0] ret_from_fork_asm+0x1a/0x30 [ 43.925636][ C0] } [ 43.925734][ C0] ... key at: [] __key.37+0x0/0x40 [ 43.926115][ C0] ... acquired at: [ 43.926248][ C0] mark_lock+0x28d/0x3e0 [ 43.926418][ C0] mark_usage+0xd9/0x2a0 [ 43.926596][ C0] __lock_acquire+0x797/0x1570 [ 43.926766][ C0] lock_acquire.part.0+0xeb/0x330 [ 43.926932][ C0] _raw_read_lock_bh+0x44/0x80 [ 43.927099][ C0] ipv6_get_lladdr+0xa9/0x3e0 [ 43.927266][ C0] ndisc_send_ns+0xe7/0x100 [ 43.927544][ C0] ndisc_solicit+0x2ae/0x4d0 [ 43.927710][ C0] neigh_probe+0xaa/0xf0 [ 43.927882][ C0] __neigh_event_send+0x7af/0xfe0 [ 43.928048][ C0] neigh_resolve_output+0x470/0x7c0 [ 43.928245][ C0] ip6_finish_output2+0x4ab/0xf80 [ 43.928651][ C0] ip6_finish_output+0x4ed/0xd30 [ 43.928845][ C0] ip6_output+0x1f3/0x770 [ 43.929011][ C0] ip6tunnel_xmit.constprop.0+0x16b/0x360 [ip6_tunnel] [ 43.929245][ C0] ip6_tnl_xmit+0x1266/0x3490 [ip6_tunnel] [ 43.929569][ C0] __gre6_xmit+0x706/0x1960 [ip6_gre] [ 43.929765][ C0] ip6gre_tunnel_xmit+0x920/0xf10 [ip6_gre] [ 43.929979][ C0] dev_hard_start_xmit+0x10e/0x360 [ 43.930275][ C0] __dev_queue_xmit+0xe69/0x16d0 [ 43.930488][ C0] ip_finish_output2+0x616/0x18e0 [ 43.930672][ C0] ip_output+0x16b/0x4f0 [ 43.930850][ C0] NF_HOOK.constprop.0+0x7e/0x320 [ 43.931030][ C0] ip_rcv+0x62f/0x740 [ 43.931282][ C0] __netif_receive_skb_one_core+0x166/0x1b0 [ 43.931505][ C0] process_backlog+0x103/0x670 [ 43.931700][ C0] __napi_poll.constprop.0+0xa2/0x460 [ 43.931867][ C0] net_rx_action+0x49f/0xc00 [ 43.932167][ C0] __do_softirq+0x1f8/0x5df [ 43.932337][ C0] do_softirq+0x4d/0xa0 [ 43.932469][ C0] __local_bh_enable_ip+0xf6/0x120 [ 43.932647][ C0] __dev_queue_xmit+0x6ac/0x16d0 [ 43.932818][ C0] packet_snd+0xd08/0x1840 [ 43.933003][ C0] __sys_sendto+0x37d/0x410 [ 43.933171][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 43.933340][ C0] do_syscall_64+0xc6/0x1e0 [ 43.933533][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.933897][ C0] [ 43.933982][ C0] [ 43.933982][ C0] stack backtrace: [ 43.934192][ C0] CPU: 0 PID: 401 Comm: mausezahn Not tainted 6.9.0-rc1-virtme #1 [ 43.934558][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 43.934944][ C0] Call Trace: [ 43.935072][ C0] [ 43.935159][ C0] dump_stack_lvl+0x82/0xd0 [ 43.935444][ C0] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 43.935694][ C0] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 43.935901][ C0] ? __pfx_usage_skip+0x10/0x10 [ 43.936106][ C0] ? __pfx_usage_match+0x10/0x10 [ 43.936401][ C0] ? arch_stack_walk+0xa2/0xf0 [ 43.936577][ C0] mark_lock_irq+0x4cd/0xa10 [ 43.936764][ C0] ? __pfx_mark_lock_irq+0x10/0x10 [ 43.936946][ C0] ? stack_trace_save+0x94/0xd0 [ 43.937262][ C0] ? save_trace+0x8f/0x5b0 [ 43.937430][ C0] mark_lock+0x28d/0x3e0 [ 43.937556][ C0] mark_usage+0xd9/0x2a0 [ 43.937699][ C0] __lock_acquire+0x797/0x1570 [ 43.937884][ C0] lock_acquire.part.0+0xeb/0x330 [ 43.938172][ C0] ? ipv6_get_lladdr+0xa9/0x3e0 [ 43.938341][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 43.938517][ C0] ? trace_lock_acquire+0x135/0x1c0 [ 43.938700][ C0] ? ipv6_get_lladdr+0xa9/0x3e0 [ 43.938980][ C0] ? lock_acquire+0x32/0xc0 [ 43.939163][ C0] ? ipv6_get_lladdr+0xa9/0x3e0 [ 43.939331][ C0] _raw_read_lock_bh+0x44/0x80 [ 43.939497][ C0] ? ipv6_get_lladdr+0xa9/0x3e0 [ 43.939678][ C0] ipv6_get_lladdr+0xa9/0x3e0 [ 43.939843][ C0] ndisc_send_ns+0xe7/0x100 [ 43.940035][ C0] ? __pfx_ndisc_send_ns+0x10/0x10 [ 43.940202][ C0] ? __ipv6_chk_addr_and_flags+0x393/0x650 [ 43.940544][ C0] ndisc_solicit+0x2ae/0x4d0 [ 43.940719][ C0] ? __pfx_ndisc_solicit+0x10/0x10 [ 43.940894][ C0] ? neigh_probe+0x57/0xf0 [ 43.941062][ C0] neigh_probe+0xaa/0xf0 [ 43.941194][ C0] __neigh_event_send+0x7af/0xfe0 [ 43.941495][ C0] ? do_raw_write_lock+0xe1/0x3b0 [ 43.941664][ C0] ? __pfx_do_raw_write_lock+0x10/0x10 [ 43.941849][ C0] neigh_resolve_output+0x470/0x7c0 [ 43.942015][ C0] ? __local_bh_enable_ip+0xa6/0x120 [ 43.942413][ C0] ? ___neigh_create+0x7c6/0xe10 [ 43.942580][ C0] ip6_finish_output2+0x4ab/0xf80 [ 43.942769][ C0] ip6_finish_output+0x4ed/0xd30 [ 43.942940][ C0] ? __pfx_flow_hash_from_keys+0x10/0x10 [ 43.943236][ C0] ip6_output+0x1f3/0x770 [ 43.943363][ C0] ? __pfx_ip6_output+0x10/0x10 [ 43.943527][ C0] ? ip6_make_flowlabel.constprop.0+0x1c4/0x2f0 [ip6_tunnel] [ 43.943786][ C0] ? __pfx_ip6_make_flowlabel.constprop.0+0x10/0x10 [ip6_tunnel] [ 43.944180][ C0] ? ip6_local_out+0x25/0x3b0 [ 43.944368][ C0] ip6tunnel_xmit.constprop.0+0x16b/0x360 [ip6_tunnel] [ 43.944612][ C0] ip6_tnl_xmit+0x1266/0x3490 [ip6_tunnel] [ 43.944856][ C0] ? __kasan_kmalloc+0x7f/0x90 [ 43.945025][ C0] ? trace_kmalloc+0x2a/0xe0 [ 43.945217][ C0] ? sk_getsockopt+0x2048/0x2c40 [ 43.945411][ C0] ? __pfx_ip6_tnl_xmit+0x10/0x10 [ip6_tunnel] [ 43.945647][ C0] ? pskb_expand_head+0x4ac/0x1020 [ 43.945924][ C0] ? __pfx_pskb_expand_head+0x10/0x10 [ 43.946122][ C0] ? __ipv6_chk_addr_and_flags+0x38e/0x650 [ 43.946337][ C0] ? __gre6_xmit+0x706/0x1960 [ip6_gre] [ 43.946530][ C0] __gre6_xmit+0x706/0x1960 [ip6_gre] [ 43.946873][ C0] ? __pfx___gre6_xmit+0x10/0x10 [ip6_gre] [ 43.947114][ C0] ip6gre_tunnel_xmit+0x920/0xf10 [ip6_gre] [ 43.947330][ C0] ? __pfx_ip6gre_tunnel_xmit+0x10/0x10 [ip6_gre] [ 43.947649][ C0] ? find_held_lock+0x2c/0x110 [ 43.947815][ C0] ? __lock_release+0x103/0x460 [ 43.947980][ C0] ? dev_queue_xmit_nit+0x775/0xad0 [ 43.948153][ C0] ? dev_queue_xmit_nit+0x759/0xad0 [ 43.948431][ C0] ? __pfx_qdisc_pkt_len_init+0x10/0x10 [ 43.948598][ C0] ? dev_queue_xmit_nit+0x775/0xad0 [ 43.948774][ C0] dev_hard_start_xmit+0x10e/0x360 [ 43.948965][ C0] ? validate_xmit_skb.constprop.0+0x2a/0x4f0 [ 43.949295][ C0] __dev_queue_xmit+0xe69/0x16d0 [ 43.949498][ C0] ? do_raw_write_lock+0x122/0x3b0 [ 43.949678][ C0] ? __pfx_do_raw_write_lock+0x10/0x10 [ 43.949871][ C0] ? __pfx___dev_queue_xmit+0x10/0x10 [ 43.950060][ C0] ? ___neigh_create+0x7c6/0xe10 [ 43.950357][ C0] ? ___neigh_create+0x7c6/0xe10 [ 43.950539][ C0] ip_finish_output2+0x616/0x18e0 [ 43.950729][ C0] ? _raw_spin_unlock_irqrestore+0x51/0x70 [ 43.950969][ C0] ? _raw_spin_unlock_irqrestore+0x43/0x70 [ 43.951298][ C0] ? __pfx_ip_finish_output2+0x10/0x10 [ 43.951479][ C0] ? __ip_finish_output+0x10f/0x770 [ 43.951657][ C0] ip_output+0x16b/0x4f0 [ 43.951792][ C0] ? __pfx_ip_output+0x10/0x10 [ 43.952091][ C0] ? pskb_expand_head+0x485/0x1020 [ 43.952267][ C0] ? ip_route_input_noref+0x10e/0x230 [ 43.952447][ C0] NF_HOOK.constprop.0+0x7e/0x320 [ 43.952624][ C0] ? __pfx_NF_HOOK.constprop.0+0x10/0x10 [ 43.952809][ C0] ? ip_forward+0xdc8/0x1a10 [ 43.952989][ C0] ip_rcv+0x62f/0x740 [ 43.953125][ C0] ? __pfx_ip_rcv+0x10/0x10 [ 43.953305][ C0] ? lock_acquire.part.0+0xeb/0x330 [ 43.953482][ C0] ? process_backlog+0x1f8/0x670 [ 43.953771][ C0] ? __pfx_ip_rcv+0x10/0x10 [ 43.953947][ C0] __netif_receive_skb_one_core+0x166/0x1b0 [ 43.954169][ C0] ? __pfx___netif_receive_skb_one_core+0x10/0x10 [ 43.954500][ C0] ? process_backlog+0x1f8/0x670 [ 43.954687][ C0] ? lock_acquire+0x32/0xc0 [ 43.954873][ C0] ? process_backlog+0x1f8/0x670 [ 43.955053][ C0] process_backlog+0x103/0x670 [ 43.955234][ C0] ? find_held_lock+0x2c/0x110 [ 43.955525][ C0] __napi_poll.constprop.0+0xa2/0x460 [ 43.955702][ C0] net_rx_action+0x49f/0xc00 [ 43.955882][ C0] ? __pfx_net_rx_action+0x10/0x10 [ 43.956063][ C0] __do_softirq+0x1f8/0x5df [ 43.956468][ C0] ? __dev_queue_xmit+0x697/0x16d0 [ 43.956665][ C0] do_softirq+0x4d/0xa0 [ 43.956800][ C0] [ 43.956897][ C0] [ 43.956987][ C0] __local_bh_enable_ip+0xf6/0x120 [ 43.957276][ C0] ? __dev_queue_xmit+0x697/0x16d0 [ 43.957454][ C0] __dev_queue_xmit+0x6ac/0x16d0 [ 43.957633][ C0] ? packet_parse_headers+0x231/0x9d0 [ 43.957812][ C0] ? packet_parse_headers+0x231/0x9d0 [ 43.957993][ C0] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 43.958296][ C0] ? __pfx___dev_queue_xmit+0x10/0x10 [ 43.958475][ C0] ? dev_get_by_index+0x177/0x270 [ 43.958655][ C0] packet_snd+0xd08/0x1840 [ 43.958835][ C0] ? __pfx___lock_release+0x10/0x10 [ 43.959130][ C0] ? __pfx_packet_snd+0x10/0x10 [ 43.959319][ C0] ? __might_fault+0xc3/0x170 [ 43.959498][ C0] ? trace_raw_output_mmap_lock_acquire_returned+0x60/0x1e0 [ 43.959788][ C0] ? __might_fault+0x11b/0x170 [ 43.959969][ C0] __sys_sendto+0x37d/0x410 [ 43.960150][ C0] ? __pfx___sys_sendto+0x10/0x10 [ 43.960341][ C0] ? sock_ioctl+0x3bc/0x590 [ 43.960518][ C0] ? __might_fault+0xc3/0x170 [ 43.960810][ C0] ? trace_rseq_update+0xd2/0x130 [ 43.960988][ C0] ? __rseq_handle_notify_resume+0x354/0x4e0 [ 43.961209][ C0] ? __pfx___rseq_handle_notify_resume+0x10/0x10 [ 43.961444][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 43.961732][ C0] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 43.961954][ C0] do_syscall_64+0xc6/0x1e0 [ 43.962130][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.962468][ C0] RIP: 0033:0x7f5d57a6f85a [ 43.962653][ C0] 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 [ 43.963399][ C0] RSP: 002b:00007ffc333b1628 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 43.963667][ C0] RAX: ffffffffffffffda RBX: 00000000107b79d0 RCX: 00007f5d57a6f85a [ 43.963974][ C0] RDX: 0000000000000062 RSI: 00000000107b75c2 RDI: 0000000000000005 [ 43.964362][ C0] RBP: 00000000107b75c2 R08: 00007ffc333b1630 R09: 0000000000000014 [ 43.964641][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 43.964910][ C0] R13: 0000000000000062 R14: 00007ffc333b1630 R15: 0000000000000000 [ 43.965310][ C0]