[ 31.273210][ T319] 8021q: 802.1Q VLAN Support v1.8 [ 31.796956][ T324] gre: GRE over IPv4 demultiplexor driver [ 31.843682][ T324] ip6_gre: GRE over IPv6 tunneling driver [ 34.626252][ T356] ip (356) used greatest stack depth: 23712 bytes left [ 42.965220][ T400] GACT probability NOT on [ 43.560620][ C2] [ 43.560759][ C2] ======================================================== [ 43.561038][ C2] WARNING: possible irq lock inversion dependency detected [ 43.561310][ C2] 6.9.0-rc1-virtme #1 Not tainted [ 43.561492][ C2] -------------------------------------------------------- [ 43.561759][ C2] mausezahn/403 just changed the state of lock: [ 43.561979][ C2] ffff888005b72580 (&ndev->lock){++.-}-{2:2}, at: ipv6_get_lladdr+0xa9/0x3e0 [ 43.562308][ C2] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 43.562581][ C2] (&p->alloc_lock){+.+.}-{2:2} [ 43.562585][ C2] [ 43.562585][ C2] [ 43.562585][ C2] and interrupts could create inverse lock ordering between them. [ 43.562585][ C2] [ 43.563239][ C2] [ 43.563239][ C2] other info that might help us debug this: [ 43.563503][ C2] Possible interrupt unsafe locking scenario: [ 43.563503][ C2] [ 43.563770][ C2] CPU0 CPU1 [ 43.563947][ C2] ---- ---- [ 43.564132][ C2] lock(&p->alloc_lock); [ 43.564267][ C2] local_irq_disable(); [ 43.564490][ C2] lock(&ndev->lock); [ 43.564729][ C2] lock(&p->alloc_lock); [ 43.564958][ C2] [ 43.565091][ C2] lock(&ndev->lock); [ 43.565227][ C2] [ 43.565227][ C2] *** DEADLOCK *** [ 43.565227][ C2] [ 43.565494][ C2] 5 locks held by mausezahn/403: [ 43.565675][ C2] #0: ffffffffa89522e0 (rcu_read_lock){....}-{1:2}, at: process_backlog+0x1f8/0x670 [ 43.565998][ C2] #1: ffffffffa89522e0 (rcu_read_lock){....}-{1:2}, at: ip_finish_output2+0x262/0x18e0 [ 43.566319][ C2] #2: ffffffffa8952280 (rcu_read_lock_bh){....}-{1:2}, at: __dev_queue_xmit+0x1dd/0x16d0 [ 43.566634][ C2] #3: ffffffffa89522e0 (rcu_read_lock){....}-{1:2}, at: ip6_finish_output2+0x2c4/0xf80 [ 43.566950][ C2] #4: ffffffffa89522e0 (rcu_read_lock){....}-{1:2}, at: ipv6_get_lladdr+0x39/0x3e0 [ 43.567265][ C2] [ 43.567265][ C2] the shortest dependencies between 2nd lock and 1st lock: [ 43.567582][ C2] -> (&p->alloc_lock){+.+.}-{2:2} { [ 43.567767][ C2] HARDIRQ-ON-W at: [ 43.567904][ C2] __lock_acquire+0x797/0x1570 [ 43.568134][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.568356][ C2] _raw_spin_lock+0x30/0x40 [ 43.568583][ C2] set_mems_allowed+0x1d/0x210 [ 43.568815][ C2] kernel_init_freeable+0x72/0x310 [ 43.569043][ C2] kernel_init+0x20/0x200 [ 43.569269][ C2] ret_from_fork+0x31/0x70 [ 43.569495][ C2] ret_from_fork_asm+0x1a/0x30 [ 43.569720][ C2] SOFTIRQ-ON-W at: [ 43.569856][ C2] __lock_acquire+0x797/0x1570 [ 43.570089][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.570319][ C2] _raw_spin_lock+0x30/0x40 [ 43.570542][ C2] set_mems_allowed+0x1d/0x210 [ 43.570765][ C2] kernel_init_freeable+0x72/0x310 [ 43.570991][ C2] kernel_init+0x20/0x200 [ 43.571216][ C2] ret_from_fork+0x31/0x70 [ 43.571445][ C2] ret_from_fork_asm+0x1a/0x30 [ 43.571672][ C2] INITIAL USE at: [ 43.571810][ C2] __lock_acquire+0x797/0x1570 [ 43.572036][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.572264][ C2] _raw_spin_lock+0x30/0x40 [ 43.572494][ C2] set_mems_allowed+0x1d/0x210 [ 43.572718][ C2] kernel_init_freeable+0x72/0x310 [ 43.572945][ C2] kernel_init+0x20/0x200 [ 43.573170][ C2] ret_from_fork+0x31/0x70 [ 43.573397][ C2] ret_from_fork_asm+0x1a/0x30 [ 43.573623][ C2] } [ 43.573714][ C2] ... key at: [] __key.387+0x0/0x40 [ 43.573984][ C2] ... acquired at: [ 43.574121][ C2] __lock_acquire+0xaf0/0x1570 [ 43.574307][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.574487][ C2] _raw_spin_lock+0x30/0x40 [ 43.574666][ C2] __get_task_comm+0x27/0x70 [ 43.574849][ C2] ref_tracker_alloc+0x2ee/0x490 [ 43.575032][ C2] netdev_get_by_index+0x5e/0x80 [ 43.575212][ C2] fib6_nh_init+0x3d8/0x15b0 [ 43.575396][ C2] ip6_route_info_create+0xf18/0x17d0 [ 43.575575][ C2] addrconf_f6i_alloc+0x265/0x560 [ 43.575758][ C2] __ipv6_dev_ac_inc+0x25f/0xb10 [ 43.575940][ C2] addrconf_join_anycast+0x1c0/0x220 [ 43.576121][ C2] __ipv6_ifa_notify+0x6b3/0xaf0 [ 43.576300][ C2] add_addr+0x1fb/0x2d0 [ 43.576438][ C2] add_v4_addrs+0x400/0x800 [ 43.576615][ C2] addrconf_gre_config+0x69/0x140 [ 43.576794][ C2] addrconf_notify+0xb0e/0xd60 [ 43.576970][ C2] notifier_call_chain+0xcd/0x150 [ 43.577158][ C2] __dev_notify_flags+0xe6/0x250 [ 43.577337][ C2] dev_change_flags+0xec/0x160 [ 43.577514][ C2] do_setlink+0x7d6/0x21e0 [ 43.577694][ C2] __rtnl_newlink+0xaa7/0xd80 [ 43.577875][ C2] rtnl_newlink+0x63/0xa0 [ 43.578170][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.578358][ C2] netlink_rcv_skb+0x130/0x360 [ 43.578539][ C2] netlink_unicast+0x449/0x710 [ 43.578722][ C2] netlink_sendmsg+0x723/0xbe0 [ 43.579011][ C2] ____sys_sendmsg+0x7b2/0xa10 [ 43.579192][ C2] ___sys_sendmsg+0xee/0x170 [ 43.579370][ C2] __sys_sendmsg+0xcd/0x170 [ 43.579550][ C2] do_syscall_64+0xc6/0x1e0 [ 43.579838][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.580071][ C2] [ 43.580167][ C2] -> (&ndev->lock){++.-}-{2:2} { [ 43.580352][ C2] HARDIRQ-ON-W at: [ 43.580485][ C2] __lock_acquire+0x797/0x1570 [ 43.580937][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.581162][ C2] _raw_write_lock_bh+0x38/0x50 [ 43.581386][ C2] addrconf_permanent_addr+0x6e/0x670 [ 43.581721][ C2] addrconf_notify+0x749/0xd60 [ 43.581944][ C2] notifier_call_chain+0xcd/0x150 [ 43.582168][ C2] __dev_notify_flags+0xe6/0x250 [ 43.582392][ C2] dev_change_flags+0xec/0x160 [ 43.582729][ C2] do_setlink+0x7d6/0x21e0 [ 43.582952][ C2] __rtnl_newlink+0xaa7/0xd80 [ 43.583178][ C2] rtnl_newlink+0x63/0xa0 [ 43.583515][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.583737][ C2] netlink_rcv_skb+0x130/0x360 [ 43.583966][ C2] netlink_unicast+0x449/0x710 [ 43.584301][ C2] netlink_sendmsg+0x723/0xbe0 [ 43.584526][ C2] ____sys_sendmsg+0x7b2/0xa10 [ 43.584750][ C2] ___sys_sendmsg+0xee/0x170 [ 43.584975][ C2] __sys_sendmsg+0xcd/0x170 [ 43.585310][ C2] do_syscall_64+0xc6/0x1e0 [ 43.585533][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.585804][ C2] HARDIRQ-ON-R at: [ 43.586049][ C2] __lock_acquire+0x797/0x1570 [ 43.586276][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.586499][ C2] _raw_read_lock_bh+0x44/0x80 [ 43.586724][ C2] inet6_fill_ifla6_attrs+0x516/0x740 [ 43.587059][ C2] inet6_fill_link_af+0x5e/0xe0 [ 43.587288][ C2] rtnl_fill_ifinfo+0x1612/0x29e0 [ 43.587510][ C2] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 43.587845][ C2] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 43.588112][ C2] rtmsg_ifinfo+0x5b/0xa0 [ 43.588335][ C2] register_netdevice+0x1177/0x1690 [ 43.588671][ C2] register_netdev+0x20/0x40 [ 43.588900][ C2] sit_init_net+0x250/0x4f0 [ 43.589124][ C2] ops_init+0x9b/0x560 [ 43.589304][ C2] register_pernet_operations+0x2db/0x710 [ 43.589681][ C2] register_pernet_device+0x2a/0x60 [ 43.589906][ C2] sit_init+0x23/0xe0 [ 43.590091][ C2] do_one_initcall+0x8d/0x1e0 [ 43.590429][ C2] do_initcalls+0x1b2/0x3e0 [ 43.590658][ C2] kernel_init_freeable+0x232/0x310 [ 43.590883][ C2] kernel_init+0x20/0x200 [ 43.591110][ C2] ret_from_fork+0x31/0x70 [ 43.591444][ C2] ret_from_fork_asm+0x1a/0x30 [ 43.591667][ C2] IN-SOFTIRQ-R at: [ 43.591802][ C2] __lock_acquire+0x797/0x1570 [ 43.592027][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.592365][ C2] _raw_read_lock_bh+0x44/0x80 [ 43.592588][ C2] ipv6_get_lladdr+0xa9/0x3e0 [ 43.592812][ C2] ndisc_send_ns+0xe7/0x100 [ 43.593148][ C2] ndisc_solicit+0x2ae/0x4d0 [ 43.593371][ C2] neigh_probe+0xaa/0xf0 [ 43.593598][ C2] __neigh_event_send+0x7af/0xfe0 [ 43.593933][ C2] neigh_resolve_output+0x470/0x7c0 [ 43.594157][ C2] ip6_finish_output2+0x4ab/0xf80 [ 43.594381][ C2] ip6_finish_output+0x4ed/0xd30 [ 43.594605][ C2] ip6_output+0x1f3/0x770 [ 43.595055][ C2] ip6tunnel_xmit.constprop.0+0x16b/0x360 [ip6_tunnel] [ 43.595330][ C2] ip6_tnl_xmit+0x1266/0x3490 [ip6_tunnel] [ 43.595610][ C2] __gre6_xmit+0x706/0x1960 [ip6_gre] [ 43.595951][ C2] ip6gre_tunnel_xmit+0x920/0xf10 [ip6_gre] [ 43.596219][ C2] dev_hard_start_xmit+0x10e/0x360 [ 43.596444][ C2] __dev_queue_xmit+0xe69/0x16d0 [ 43.596777][ C2] ip_finish_output2+0x616/0x18e0 [ 43.597002][ C2] ip_output+0x16b/0x4f0 [ 43.597230][ C2] NF_HOOK.constprop.0+0x7e/0x320 [ 43.597561][ C2] ip_rcv+0x62f/0x740 [ 43.597742][ C2] __netif_receive_skb_one_core+0x166/0x1b0 [ 43.598015][ C2] process_backlog+0x103/0x670 [ 43.598231][ C2] __napi_poll.constprop.0+0xa2/0x460 [ 43.598563][ C2] net_rx_action+0x49f/0xc00 [ 43.598795][ C2] __do_softirq+0x1f8/0x5df [ 43.599017][ C2] do_softirq+0x4d/0xa0 [ 43.599354][ C2] __local_bh_enable_ip+0xf6/0x120 [ 43.599578][ C2] __dev_queue_xmit+0x6ac/0x16d0 [ 43.599800][ C2] packet_snd+0xd08/0x1840 [ 43.600027][ C2] __sys_sendto+0x37d/0x410 [ 43.600374][ C2] __x64_sys_sendto+0xe0/0x1c0 [ 43.600598][ C2] do_syscall_64+0xc6/0x1e0 [ 43.600821][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.601202][ C2] INITIAL USE at: [ 43.601337][ C2] __lock_acquire+0x797/0x1570 [ 43.601560][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.601782][ C2] _raw_write_lock_bh+0x38/0x50 [ 43.602122][ C2] addrconf_permanent_addr+0x6e/0x670 [ 43.602344][ C2] addrconf_notify+0x749/0xd60 [ 43.602569][ C2] notifier_call_chain+0xcd/0x150 [ 43.602905][ C2] __dev_notify_flags+0xe6/0x250 [ 43.603128][ C2] dev_change_flags+0xec/0x160 [ 43.603351][ C2] do_setlink+0x7d6/0x21e0 [ 43.603685][ C2] __rtnl_newlink+0xaa7/0xd80 [ 43.603912][ C2] rtnl_newlink+0x63/0xa0 [ 43.604135][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.604358][ C2] netlink_rcv_skb+0x130/0x360 [ 43.604694][ C2] netlink_unicast+0x449/0x710 [ 43.604919][ C2] netlink_sendmsg+0x723/0xbe0 [ 43.605144][ C2] ____sys_sendmsg+0x7b2/0xa10 [ 43.605481][ C2] ___sys_sendmsg+0xee/0x170 [ 43.605706][ C2] __sys_sendmsg+0xcd/0x170 [ 43.605928][ C2] do_syscall_64+0xc6/0x1e0 [ 43.606151][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.606535][ C2] INITIAL READ USE at: [ 43.606670][ C2] __lock_acquire+0x797/0x1570 [ 43.606893][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.607231][ C2] _raw_read_lock_bh+0x44/0x80 [ 43.607455][ C2] inet6_fill_ifla6_attrs+0x516/0x740 [ 43.607721][ C2] inet6_fill_link_af+0x5e/0xe0 [ 43.608056][ C2] rtnl_fill_ifinfo+0x1612/0x29e0 [ 43.608293][ C2] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 43.608564][ C2] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 43.609053][ C2] rtmsg_ifinfo+0x5b/0xa0 [ 43.609280][ C2] register_netdevice+0x1177/0x1690 [ 43.609548][ C2] register_netdev+0x20/0x40 [ 43.609773][ C2] sit_init_net+0x250/0x4f0 [ 43.610114][ C2] ops_init+0x9b/0x560 [ 43.610348][ C2] register_pernet_operations+0x2db/0x710 [ 43.610614][ C2] register_pernet_device+0x2a/0x60 [ 43.610992][ C2] sit_init+0x23/0xe0 [ 43.611214][ C2] do_one_initcall+0x8d/0x1e0 [ 43.611438][ C2] do_initcalls+0x1b2/0x3e0 [ 43.611773][ C2] kernel_init_freeable+0x232/0x310 [ 43.612044][ C2] kernel_init+0x20/0x200 [ 43.612270][ C2] ret_from_fork+0x31/0x70 [ 43.612605][ C2] ret_from_fork_asm+0x1a/0x30 [ 43.612827][ C2] } [ 43.612919][ C2] ... key at: [] __key.37+0x0/0x40 [ 43.613189][ C2] ... acquired at: [ 43.613429][ C2] mark_lock+0x28d/0x3e0 [ 43.613616][ C2] mark_usage+0xd9/0x2a0 [ 43.613797][ C2] __lock_acquire+0x797/0x1570 [ 43.613977][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.614160][ C2] _raw_read_lock_bh+0x44/0x80 [ 43.614451][ C2] ipv6_get_lladdr+0xa9/0x3e0 [ 43.614630][ C2] ndisc_send_ns+0xe7/0x100 [ 43.614808][ C2] ndisc_solicit+0x2ae/0x4d0 [ 43.614983][ C2] neigh_probe+0xaa/0xf0 [ 43.615272][ C2] __neigh_event_send+0x7af/0xfe0 [ 43.615455][ C2] neigh_resolve_output+0x470/0x7c0 [ 43.615633][ C2] ip6_finish_output2+0x4ab/0xf80 [ 43.615813][ C2] ip6_finish_output+0x4ed/0xd30 [ 43.616108][ C2] ip6_output+0x1f3/0x770 [ 43.616285][ C2] ip6tunnel_xmit.constprop.0+0x16b/0x360 [ip6_tunnel] [ 43.616511][ C2] ip6_tnl_xmit+0x1266/0x3490 [ip6_tunnel] [ 43.616735][ C2] __gre6_xmit+0x706/0x1960 [ip6_gre] [ 43.616920][ C2] ip6gre_tunnel_xmit+0x920/0xf10 [ip6_gre] [ 43.617146][ C2] dev_hard_start_xmit+0x10e/0x360 [ 43.617323][ C2] __dev_queue_xmit+0xe69/0x16d0 [ 43.617502][ C2] ip_finish_output2+0x616/0x18e0 [ 43.617790][ C2] ip_output+0x16b/0x4f0 [ 43.617965][ C2] NF_HOOK.constprop.0+0x7e/0x320 [ 43.618144][ C2] ip_rcv+0x62f/0x740 [ 43.618278][ C2] __netif_receive_skb_one_core+0x166/0x1b0 [ 43.618613][ C2] process_backlog+0x103/0x670 [ 43.618791][ C2] __napi_poll.constprop.0+0xa2/0x460 [ 43.618967][ C2] net_rx_action+0x49f/0xc00 [ 43.619148][ C2] __do_softirq+0x1f8/0x5df [ 43.619438][ C2] do_softirq+0x4d/0xa0 [ 43.619572][ C2] __local_bh_enable_ip+0xf6/0x120 [ 43.619749][ C2] __dev_queue_xmit+0x6ac/0x16d0 [ 43.619927][ C2] packet_snd+0xd08/0x1840 [ 43.620124][ C2] __sys_sendto+0x37d/0x410 [ 43.620410][ C2] __x64_sys_sendto+0xe0/0x1c0 [ 43.620587][ C2] do_syscall_64+0xc6/0x1e0 [ 43.620764][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.620986][ C2] [ 43.621186][ C2] [ 43.621186][ C2] stack backtrace: [ 43.621409][ C2] CPU: 2 PID: 403 Comm: mausezahn Not tainted 6.9.0-rc1-virtme #1 [ 43.621687][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 43.622182][ C2] Call Trace: [ 43.622308][ C2] [ 43.622393][ C2] dump_stack_lvl+0x82/0xd0 [ 43.622563][ C2] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 43.622988][ C2] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 43.623198][ C2] ? __pfx_usage_skip+0x10/0x10 [ 43.623364][ C2] ? __pfx_usage_match+0x10/0x10 [ 43.623533][ C2] ? arch_stack_walk+0xa2/0xf0 [ 43.623812][ C2] mark_lock_irq+0x4cd/0xa10 [ 43.623978][ C2] ? __pfx_mark_lock_irq+0x10/0x10 [ 43.624151][ C2] ? stack_trace_save+0x94/0xd0 [ 43.624333][ C2] ? save_trace+0x8f/0x5b0 [ 43.624513][ C2] mark_lock+0x28d/0x3e0 [ 43.624752][ C2] mark_usage+0xd9/0x2a0 [ 43.624878][ C2] __lock_acquire+0x797/0x1570 [ 43.625047][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.625222][ C2] ? ipv6_get_lladdr+0xa9/0x3e0 [ 43.625498][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 43.625665][ C2] ? trace_lock_acquire+0x135/0x1c0 [ 43.625830][ C2] ? ipv6_get_lladdr+0xa9/0x3e0 [ 43.625994][ C2] ? lock_acquire+0x32/0xc0 [ 43.626160][ C2] ? ipv6_get_lladdr+0xa9/0x3e0 [ 43.626435][ C2] _raw_read_lock_bh+0x44/0x80 [ 43.626602][ C2] ? ipv6_get_lladdr+0xa9/0x3e0 [ 43.626767][ C2] ipv6_get_lladdr+0xa9/0x3e0 [ 43.626940][ C2] ndisc_send_ns+0xe7/0x100 [ 43.627217][ C2] ? __pfx_ndisc_send_ns+0x10/0x10 [ 43.627382][ C2] ? __ipv6_chk_addr_and_flags+0x393/0x650 [ 43.627594][ C2] ndisc_solicit+0x2ae/0x4d0 [ 43.627760][ C2] ? __pfx_ndisc_solicit+0x10/0x10 [ 43.628038][ C2] ? neigh_probe+0x57/0xf0 [ 43.628209][ C2] neigh_probe+0xaa/0xf0 [ 43.628334][ C2] __neigh_event_send+0x7af/0xfe0 [ 43.628508][ C2] ? do_raw_write_lock+0xe1/0x3b0 [ 43.628785][ C2] ? __pfx_do_raw_write_lock+0x10/0x10 [ 43.628953][ C2] neigh_resolve_output+0x470/0x7c0 [ 43.629124][ C2] ? __local_bh_enable_ip+0xa6/0x120 [ 43.629303][ C2] ? ___neigh_create+0x7c6/0xe10 [ 43.629483][ C2] ip6_finish_output2+0x4ab/0xf80 [ 43.629764][ C2] ip6_finish_output+0x4ed/0xd30 [ 43.629929][ C2] ? __pfx_flow_hash_from_keys+0x10/0x10 [ 43.630109][ C2] ip6_output+0x1f3/0x770 [ 43.630235][ C2] ? __pfx_ip6_output+0x10/0x10 [ 43.630509][ C2] ? ip6_make_flowlabel.constprop.0+0x1c4/0x2f0 [ip6_tunnel] [ 43.630762][ C2] ? __pfx_ip6_make_flowlabel.constprop.0+0x10/0x10 [ip6_tunnel] [ 43.631013][ C2] ? ip6_local_out+0x25/0x3b0 [ 43.631290][ C2] ip6tunnel_xmit.constprop.0+0x16b/0x360 [ip6_tunnel] [ 43.631504][ C2] ip6_tnl_xmit+0x1266/0x3490 [ip6_tunnel] [ 43.631721][ C2] ? __kasan_kmalloc+0x7f/0x90 [ 43.631890][ C2] ? trace_kmalloc+0x2a/0xe0 [ 43.632168][ C2] ? sk_getsockopt+0x2048/0x2c40 [ 43.632335][ C2] ? __pfx_ip6_tnl_xmit+0x10/0x10 [ip6_tunnel] [ 43.632546][ C2] ? pskb_expand_head+0x4ac/0x1020 [ 43.632714][ C2] ? __pfx_pskb_expand_head+0x10/0x10 [ 43.632989][ C2] ? __ipv6_chk_addr_and_flags+0x38e/0x650 [ 43.633197][ C2] ? __gre6_xmit+0x706/0x1960 [ip6_gre] [ 43.633370][ C2] __gre6_xmit+0x706/0x1960 [ip6_gre] [ 43.633542][ C2] ? __pfx___gre6_xmit+0x10/0x10 [ip6_gre] [ 43.633862][ C2] ip6gre_tunnel_xmit+0x920/0xf10 [ip6_gre] [ 43.634073][ C2] ? __pfx_ip6gre_tunnel_xmit+0x10/0x10 [ip6_gre] [ 43.634284][ C2] ? find_held_lock+0x2c/0x110 [ 43.634449][ C2] ? __lock_release+0x103/0x460 [ 43.634724][ C2] ? dev_queue_xmit_nit+0x775/0xad0 [ 43.634890][ C2] ? dev_queue_xmit_nit+0x759/0xad0 [ 43.635059][ C2] ? __pfx_qdisc_pkt_len_init+0x10/0x10 [ 43.635227][ C2] ? dev_queue_xmit_nit+0x775/0xad0 [ 43.635503][ C2] dev_hard_start_xmit+0x10e/0x360 [ 43.635669][ C2] ? validate_xmit_skb.constprop.0+0x2a/0x4f0 [ 43.635877][ C2] __dev_queue_xmit+0xe69/0x16d0 [ 43.636042][ C2] ? do_raw_write_lock+0x122/0x3b0 [ 43.636428][ C2] ? __pfx_do_raw_write_lock+0x10/0x10 [ 43.636598][ C2] ? __pfx___dev_queue_xmit+0x10/0x10 [ 43.636765][ C2] ? ___neigh_create+0x7c6/0xe10 [ 43.636931][ C2] ? ___neigh_create+0x7c6/0xe10 [ 43.637207][ C2] ip_finish_output2+0x616/0x18e0 [ 43.637375][ C2] ? lockdep_hardirqs_on_prepare.part.0+0x14f/0x370 [ 43.637586][ C2] ? __pfx_ip_finish_output2+0x10/0x10 [ 43.637754][ C2] ? __ip_finish_output+0x10f/0x770 [ 43.638033][ C2] ip_output+0x16b/0x4f0 [ 43.638161][ C2] ? __pfx_ip_output+0x10/0x10 [ 43.638334][ C2] ? pskb_expand_head+0x485/0x1020 [ 43.638512][ C2] ? ip_route_input_noref+0x10e/0x230 [ 43.638680][ C2] NF_HOOK.constprop.0+0x7e/0x320 [ 43.638956][ C2] ? __pfx_NF_HOOK.constprop.0+0x10/0x10 [ 43.639127][ C2] ? ip_forward+0xdc8/0x1a10 [ 43.639296][ C2] ip_rcv+0x62f/0x740 [ 43.639421][ C2] ? __pfx_ip_rcv+0x10/0x10 [ 43.639704][ C2] ? lock_acquire.part.0+0xeb/0x330 [ 43.639870][ C2] ? process_backlog+0x1f8/0x670 [ 43.640037][ C2] ? __pfx_ip_rcv+0x10/0x10 [ 43.640220][ C2] __netif_receive_skb_one_core+0x166/0x1b0 [ 43.640535][ C2] ? __pfx___netif_receive_skb_one_core+0x10/0x10 [ 43.640743][ C2] ? process_backlog+0x1f8/0x670 [ 43.640907][ C2] ? lock_acquire+0x32/0xc0 [ 43.641073][ C2] ? process_backlog+0x1f8/0x670 [ 43.641355][ C2] process_backlog+0x103/0x670 [ 43.641522][ C2] ? __pfx___lock_release+0x10/0x10 [ 43.641689][ C2] __napi_poll.constprop.0+0xa2/0x460 [ 43.641855][ C2] net_rx_action+0x49f/0xc00 [ 43.642133][ C2] ? __pfx_net_rx_action+0x10/0x10 [ 43.642301][ C2] ? hrtimer_interrupt+0x311/0x770 [ 43.642470][ C2] __do_softirq+0x1f8/0x5df [ 43.642636][ C2] ? __dev_queue_xmit+0x697/0x16d0 [ 43.642806][ C2] do_softirq+0x4d/0xa0 [ 43.643039][ C2] [ 43.643128][ C2] [ 43.643212][ C2] __local_bh_enable_ip+0xf6/0x120 [ 43.643377][ C2] ? __dev_queue_xmit+0x697/0x16d0 [ 43.643542][ C2] __dev_queue_xmit+0x6ac/0x16d0 [ 43.643819][ C2] ? packet_parse_headers+0x231/0x9d0 [ 43.643985][ C2] ? packet_parse_headers+0x231/0x9d0 [ 43.644162][ C2] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 43.644333][ C2] ? __pfx___dev_queue_xmit+0x10/0x10 [ 43.644608][ C2] ? dev_get_by_index+0x177/0x270 [ 43.644775][ C2] packet_snd+0xd08/0x1840 [ 43.644942][ C2] ? __pfx___lock_release+0x10/0x10 [ 43.645112][ C2] ? __pfx_packet_snd+0x10/0x10 [ 43.645279][ C2] ? __might_fault+0xc3/0x170 [ 43.645555][ C2] ? trace_raw_output_mmap_lock_acquire_returned+0x60/0x1e0 [ 43.645811][ C2] ? __might_fault+0x11b/0x170 [ 43.645979][ C2] __sys_sendto+0x37d/0x410 [ 43.646255][ C2] ? __pfx___sys_sendto+0x10/0x10 [ 43.646424][ C2] ? sock_ioctl+0x3bc/0x590 [ 43.646589][ C2] ? __might_fault+0xc3/0x170 [ 43.646756][ C2] ? trace_rseq_update+0xd2/0x130 [ 43.646922][ C2] ? __rseq_handle_notify_resume+0x354/0x4e0 [ 43.647237][ C2] ? __pfx___rseq_handle_notify_resume+0x10/0x10 [ 43.647445][ C2] __x64_sys_sendto+0xe0/0x1c0 [ 43.647622][ C2] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 43.647941][ C2] do_syscall_64+0xc6/0x1e0 [ 43.648109][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.648316][ C2] RIP: 0033:0x7f58077c285a [ 43.648492][ C2] 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 [ 43.649203][ C2] RSP: 002b:00007ffc29be9308 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 43.649677][ C2] RAX: ffffffffffffffda RBX: 000000001b4df9d0 RCX: 00007f58077c285a [ 43.649926][ C2] RDX: 0000000000000062 RSI: 000000001b4df5c2 RDI: 0000000000000005 [ 43.650188][ C2] RBP: 000000001b4df5c2 R08: 00007ffc29be9310 R09: 0000000000000014 [ 43.650548][ C2] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 43.650798][ C2] R13: 0000000000000062 R14: 00007ffc29be9310 R15: 0000000000000000 [ 43.651049][ C2]