======================================
| [ 1055.837009][   T75] veth_A-C: left allmulticast mode
| [ 1055.837273][   T75] veth_A-C: left promiscuous mode
| [ 1055.837697][   T75] br0: port 1(veth_A-C) entered disabled state
| [ 1619.761346][T10781] Initializing XFRM netlink socket
| [ 1868.101248][T12484] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 5
[ 1868.101753][T12484] ref_tracker: veth_A-R1@ffff8880060c45e0 has 1/4 users at
[1868.101753][T12484] dst_init (net/core/dst.c:53) 
[1868.101753][T12484] dst_alloc (net/core/dst.c:96) 
[1868.101753][T12484] ip6_dst_alloc (net/ipv6/route.c:342) 
[1868.101753][T12484] ip6_rt_pcpu_alloc (net/ipv6/route.c:1379) 
[1868.101753][T12484] ip6_pol_route (net/ipv6/route.c:1428 net/ipv6/route.c:2265) 
[1868.101753][T12484] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1868.101753][T12484] ip6_route_output_flags (net/ipv6/route.c:2637 net/ipv6/route.c:2649) 
[1868.101753][T12484] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1868.101753][T12484] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1868.101753][T12484] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1868.101753][T12484] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2524 (discriminator 4)) vxlan
[1868.101753][T12484] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2789) vxlan
[1868.101753][T12484] dev_hard_start_xmit (./include/linux/netdevice.h:4885 ./include/linux/netdevice.h:4899 net/core/dev.c:3578 net/core/dev.c:3594) 
[1868.101753][T12484] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1868.101753][T12484] arp_solicit (net/ipv4/arp.c:392) 
[1868.101753][T12484] neigh_probe (net/core/neighbour.c:1077) 
| [1868.101753][T12484] dev_hard_start_xmit (./include/linux/netdevice.h:4885 ./include/linux/netdevice.h:4899 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1868.101753][T12484] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1868.101753][T12484] arp_solicit (net/ipv4/arp.c:392) 
| [1868.101753][T12484] neigh_probe (net/core/neighbour.c:1077) 
| [ 1868.101753][T12484]
[ 1868.104788][T12484] ref_tracker: veth_A-R1@ffff8880060c45e0 has 1/4 users at
[1868.104788][T12484] dst_init (net/core/dst.c:53) 
[1868.104788][T12484] dst_alloc (net/core/dst.c:96) 
[1868.104788][T12484] ip6_dst_alloc (net/ipv6/route.c:342) 
[1868.104788][T12484] ip6_rt_pcpu_alloc (net/ipv6/route.c:1379) 
[1868.104788][T12484] ip6_pol_route (net/ipv6/route.c:1428 net/ipv6/route.c:2265) 
[1868.104788][T12484] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1868.104788][T12484] ip6_route_output_flags (net/ipv6/route.c:2637 net/ipv6/route.c:2649) 
[1868.104788][T12484] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1868.104788][T12484] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1868.104788][T12484] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1868.104788][T12484] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2524 (discriminator 4)) vxlan
[1868.104788][T12484] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2789) vxlan
[1868.104788][T12484] dev_hard_start_xmit (./include/linux/netdevice.h:4885 ./include/linux/netdevice.h:4899 net/core/dev.c:3578 net/core/dev.c:3594) 
[1868.104788][T12484] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1868.104788][T12484] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
[1868.104788][T12484] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [1868.104788][T12484] dev_hard_start_xmit (./include/linux/netdevice.h:4885 ./include/linux/netdevice.h:4899 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1868.104788][T12484] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1868.104788][T12484] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
| [1868.104788][T12484] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [ 1868.104788][T12484]
[ 1868.107473][T12484] ref_tracker: veth_A-R1@ffff8880060c45e0 has 1/4 users at
[1868.107473][T12484] netdev_get_by_index (net/core/dev.c:914) 
[1868.107473][T12484] fib6_nh_init (net/ipv6/route.c:3541) 
[1868.107473][T12484] nh_create_ipv6 (net/ipv4/nexthop.c:2827) 
[1868.107473][T12484] nexthop_create (net/ipv4/nexthop.c:2878) 
[1868.107473][T12484] rtm_new_nexthop (net/ipv4/nexthop.c:2920 net/ipv4/nexthop.c:3206) 
[1868.107473][T12484] rtnetlink_rcv_msg (net/core/rtnetlink.c:6641) 
[1868.107473][T12484] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[1868.107473][T12484] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[1868.107473][T12484] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[1868.107473][T12484] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2599) 
[1868.107473][T12484] ___sys_sendmsg (net/socket.c:2655) 
[1868.107473][T12484] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2684) 
[1868.107473][T12484] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[1868.107473][T12484] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [1868.107473][T12484] ___sys_sendmsg (net/socket.c:2655) 
| [1868.107473][T12484] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2684) 
| [1868.107473][T12484] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1868.107473][T12484] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [ 1868.107473][T12484]
[ 1868.109800][T12484] ref_tracker: veth_A-R1@ffff8880060c45e0 has 1/4 users at
[1868.109800][T12484] ipv6_add_dev (net/ipv6/addrconf.c:344 net/ipv6/addrconf.c:409) 
[1868.109800][T12484] addrconf_notify (net/ipv6/addrconf.c:3653) 
[1868.109800][T12484] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) 
[1868.109800][T12484] register_netdevice (./include/linux/notifier.h:207 net/core/dev.c:10409) 
[1868.109800][T12484] veth_newlink (drivers/net/veth.c:1860) 
[1868.109800][T12484] rtnl_newlink_create (net/core/rtnetlink.c:3510) 
[1868.109800][T12484] __rtnl_newlink (net/core/rtnetlink.c:3730) 
[1868.109800][T12484] rtnl_newlink (net/core/rtnetlink.c:3744) 
[1868.109800][T12484] rtnetlink_rcv_msg (net/core/rtnetlink.c:6641) 
[1868.109800][T12484] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[1868.109800][T12484] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[1868.109800][T12484] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[1868.109800][T12484] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2599) 
[1868.109800][T12484] ___sys_sendmsg (net/socket.c:2655) 
[1868.109800][T12484] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2684) 
[1868.109800][T12484] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1868.109800][T12484] ___sys_sendmsg (net/socket.c:2655) 
| [1868.109800][T12484] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2684) 
| [1868.109800][T12484] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [ 1868.109800][T12484]
| [ 1878.221231][T12484] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 5
[ 1878.221630][T12484] ref_tracker: veth_A-R1@ffff8880060c45e0 has 1/4 users at
[1878.221630][T12484] dst_init (net/core/dst.c:53) 
[1878.221630][T12484] dst_alloc (net/core/dst.c:96) 
[1878.221630][T12484] ip6_dst_alloc (net/ipv6/route.c:342) 
[1878.221630][T12484] ip6_rt_pcpu_alloc (net/ipv6/route.c:1379) 
[1878.221630][T12484] ip6_pol_route (net/ipv6/route.c:1428 net/ipv6/route.c:2265) 
[1878.221630][T12484] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1878.221630][T12484] ip6_route_output_flags (net/ipv6/route.c:2637 net/ipv6/route.c:2649) 
[1878.221630][T12484] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1878.221630][T12484] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1878.221630][T12484] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1878.221630][T12484] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2524 (discriminator 4)) vxlan
[1878.221630][T12484] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2789) vxlan
[1878.221630][T12484] dev_hard_start_xmit (./include/linux/netdevice.h:4885 ./include/linux/netdevice.h:4899 net/core/dev.c:3578 net/core/dev.c:3594) 
[1878.221630][T12484] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1878.221630][T12484] arp_solicit (net/ipv4/arp.c:392) 
[1878.221630][T12484] neigh_probe (net/core/neighbour.c:1077) 
| [1878.221630][T12484] dev_hard_start_xmit (./include/linux/netdevice.h:4885 ./include/linux/netdevice.h:4899 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1878.221630][T12484] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1878.221630][T12484] arp_solicit (net/ipv4/arp.c:392) 
| [1878.221630][T12484] neigh_probe (net/core/neighbour.c:1077) 
| [ 1878.221630][T12484]
[ 1878.223972][T12484] ref_tracker: veth_A-R1@ffff8880060c45e0 has 1/4 users at
[1878.223972][T12484] dst_init (net/core/dst.c:53) 
[1878.223972][T12484] dst_alloc (net/core/dst.c:96) 
[1878.223972][T12484] ip6_dst_alloc (net/ipv6/route.c:342) 
[1878.223972][T12484] ip6_rt_pcpu_alloc (net/ipv6/route.c:1379) 
[1878.223972][T12484] ip6_pol_route (net/ipv6/route.c:1428 net/ipv6/route.c:2265) 
[1878.223972][T12484] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1878.223972][T12484] ip6_route_output_flags (net/ipv6/route.c:2637 net/ipv6/route.c:2649) 
[1878.223972][T12484] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1878.223972][T12484] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1878.223972][T12484] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1878.223972][T12484] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2524 (discriminator 4)) vxlan
[1878.223972][T12484] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2789) vxlan
[1878.223972][T12484] dev_hard_start_xmit (./include/linux/netdevice.h:4885 ./include/linux/netdevice.h:4899 net/core/dev.c:3578 net/core/dev.c:3594) 
[1878.223972][T12484] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1878.223972][T12484] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
[1878.223972][T12484] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [1878.223972][T12484] dev_hard_start_xmit (./include/linux/netdevice.h:4885 ./include/linux/netdevice.h:4899 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1878.223972][T12484] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1878.223972][T12484] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
| [1878.223972][T12484] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [ 1878.223972][T12484]
[ 1878.226285][T12484] ref_tracker: veth_A-R1@ffff8880060c45e0 has 1/4 users at
[1878.226285][T12484] netdev_get_by_index (net/core/dev.c:914) 
[1878.226285][T12484] fib6_nh_init (net/ipv6/route.c:3541) 
[1878.226285][T12484] nh_create_ipv6 (net/ipv4/nexthop.c:2827) 
[1878.226285][T12484] nexthop_create (net/ipv4/nexthop.c:2878) 
[1878.226285][T12484] rtm_new_nexthop (net/ipv4/nexthop.c:2920 net/ipv4/nexthop.c:3206) 
[1878.226285][T12484] rtnetlink_rcv_msg (net/core/rtnetlink.c:6641) 
[1878.226285][T12484] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[1878.226285][T12484] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[1878.226285][T12484] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[1878.226285][T12484] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2599) 
[1878.226285][T12484] ___sys_sendmsg (net/socket.c:2655) 
[1878.226285][T12484] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2684) 
[1878.226285][T12484] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[1878.226285][T12484] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [1878.226285][T12484] ___sys_sendmsg (net/socket.c:2655) 
| [1878.226285][T12484] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2684) 
| [1878.226285][T12484] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1878.226285][T12484] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [ 1878.226285][T12484]
[ 1878.228262][T12484] ref_tracker: veth_A-R1@ffff8880060c45e0 has 1/4 users at
[1878.228262][T12484] ipv6_add_dev (net/ipv6/addrconf.c:344 net/ipv6/addrconf.c:409) 
[1878.228262][T12484] addrconf_notify (net/ipv6/addrconf.c:3653) 
[1878.228262][T12484] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) 
[1878.228262][T12484] register_netdevice (./include/linux/notifier.h:207 net/core/dev.c:10409) 
[1878.228262][T12484] veth_newlink (drivers/net/veth.c:1860) 
[1878.228262][T12484] rtnl_newlink_create (net/core/rtnetlink.c:3510) 
[1878.228262][T12484] __rtnl_newlink (net/core/rtnetlink.c:3730) 
[1878.228262][T12484] rtnl_newlink (net/core/rtnetlink.c:3744) 
[1878.228262][T12484] rtnetlink_rcv_msg (net/core/rtnetlink.c:6641) 
[1878.228262][T12484] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[1878.228262][T12484] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[1878.228262][T12484] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[1878.228262][T12484] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2599) 
[1878.228262][T12484] ___sys_sendmsg (net/socket.c:2655) 
[1878.228262][T12484] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2684) 
[1878.228262][T12484] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1878.228262][T12484] ___sys_sendmsg (net/socket.c:2655) 
| [1878.228262][T12484] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2684) 
| [1878.228262][T12484] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [ 1878.228262][T12484]
| [ 1888.397169][T12484] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 5
[ 1888.397586][T12484] ref_tracker: veth_A-R1@ffff8880060c45e0 has 1/4 users at
[1888.397586][T12484] dst_init (net/core/dst.c:53) 
[1888.397586][T12484] dst_alloc (net/core/dst.c:96) 
[1888.397586][T12484] ip6_dst_alloc (net/ipv6/route.c:342) 
[1888.397586][T12484] ip6_rt_pcpu_alloc (net/ipv6/route.c:1379) 
[1888.397586][T12484] ip6_pol_route (net/ipv6/route.c:1428 net/ipv6/route.c:2265) 
[1888.397586][T12484] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1888.397586][T12484] ip6_route_output_flags (net/ipv6/route.c:2637 net/ipv6/route.c:2649) 
[1888.397586][T12484] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1888.397586][T12484] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1888.397586][T12484] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1888.397586][T12484] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2524 (discriminator 4)) vxlan
[1888.397586][T12484] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2789) vxlan
[1888.397586][T12484] dev_hard_start_xmit (./include/linux/netdevice.h:4885 ./include/linux/netdevice.h:4899 net/core/dev.c:3578 net/core/dev.c:3594) 
[1888.397586][T12484] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1888.397586][T12484] arp_solicit (net/ipv4/arp.c:392) 
[1888.397586][T12484] neigh_probe (net/core/neighbour.c:1077) 
| [1888.397586][T12484] dev_hard_start_xmit (./include/linux/netdevice.h:4885 ./include/linux/netdevice.h:4899 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1888.397586][T12484] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1888.397586][T12484] arp_solicit (net/ipv4/arp.c:392) 
| [1888.397586][T12484] neigh_probe (net/core/neighbour.c:1077) 
| [ 1888.397586][T12484]
[ 1888.400065][T12484] ref_tracker: veth_A-R1@ffff8880060c45e0 has 1/4 users at
[1888.400065][T12484] dst_init (net/core/dst.c:53) 
[1888.400065][T12484] dst_alloc (net/core/dst.c:96) 
[1888.400065][T12484] ip6_dst_alloc (net/ipv6/route.c:342) 
[1888.400065][T12484] ip6_rt_pcpu_alloc (net/ipv6/route.c:1379) 
[1888.400065][T12484] ip6_pol_route (net/ipv6/route.c:1428 net/ipv6/route.c:2265) 
[1888.400065][T12484] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1888.400065][T12484] ip6_route_output_flags (net/ipv6/route.c:2637 net/ipv6/route.c:2649) 
[1888.400065][T12484] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1888.400065][T12484] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1888.400065][T12484] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1888.400065][T12484] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2524 (discriminator 4)) vxlan
[1888.400065][T12484] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2789) vxlan
[1888.400065][T12484] dev_hard_start_xmit (./include/linux/netdevice.h:4885 ./include/linux/netdevice.h:4899 net/core/dev.c:3578 net/core/dev.c:3594) 
[1888.400065][T12484] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1888.400065][T12484] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
[1888.400065][T12484] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [1888.400065][T12484] dev_hard_start_xmit (./include/linux/netdevice.h:4885 ./include/linux/netdevice.h:4899 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1888.400065][T12484] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1888.400065][T12484] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
| [1888.400065][T12484] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [ 1888.400065][T12484]
[ 1888.402504][T12484] ref_tracker: veth_A-R1@ffff8880060c45e0 has 1/4 users at
[1888.402504][T12484] netdev_get_by_index (net/core/dev.c:914) 
[1888.402504][T12484] fib6_nh_init (net/ipv6/route.c:3541) 
[1888.402504][T12484] nh_create_ipv6 (net/ipv4/nexthop.c:2827) 
[1888.402504][T12484] nexthop_create (net/ipv4/nexthop.c:2878) 
[1888.402504][T12484] rtm_new_nexthop (net/ipv4/nexthop.c:2920 net/ipv4/nexthop.c:3206) 
[1888.402504][T12484] rtnetlink_rcv_msg (net/core/rtnetlink.c:6641) 
[1888.402504][T12484] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[1888.402504][T12484] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[1888.402504][T12484] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[1888.402504][T12484] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2599) 
[1888.402504][T12484] ___sys_sendmsg (net/socket.c:2655) 
[1888.402504][T12484] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2684) 
[1888.402504][T12484] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[1888.402504][T12484] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [1888.402504][T12484] ___sys_sendmsg (net/socket.c:2655) 
| [1888.402504][T12484] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2684) 
| [1888.402504][T12484] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1888.402504][T12484] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [ 1888.402504][T12484]
[ 1888.404580][T12484] ref_tracker: veth_A-R1@ffff8880060c45e0 has 1/4 users at
[1888.404580][T12484] ipv6_add_dev (net/ipv6/addrconf.c:344 net/ipv6/addrconf.c:409) 
[1888.404580][T12484] addrconf_notify (net/ipv6/addrconf.c:3653) 
[1888.404580][T12484] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) 
[1888.404580][T12484] register_netdevice (./include/linux/notifier.h:207 net/core/dev.c:10409) 
[1888.404580][T12484] veth_newlink (drivers/net/veth.c:1860) 
[1888.404580][T12484] rtnl_newlink_create (net/core/rtnetlink.c:3510) 
[1888.404580][T12484] __rtnl_newlink (net/core/rtnetlink.c:3730) 
[1888.404580][T12484] rtnl_newlink (net/core/rtnetlink.c:3744) 
[1888.404580][T12484] rtnetlink_rcv_msg (net/core/rtnetlink.c:6641) 
[1888.404580][T12484] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[1888.404580][T12484] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[1888.404580][T12484] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[1888.404580][T12484] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2599) 
[1888.404580][T12484] ___sys_sendmsg (net/socket.c:2655) 
[1888.404580][T12484] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2684) 
[1888.404580][T12484] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1888.404580][T12484] ___sys_sendmsg (net/socket.c:2655) 
| [1888.404580][T12484] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2684) 
| [1888.404580][T12484] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [ 1888.404580][T12484]
| [ 1898.589197][T12484] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 5
[ 1898.589575][T12484] ref_tracker: veth_A-R1@ffff8880060c45e0 has 1/4 users at
[1898.589575][T12484] dst_init (net/core/dst.c:53) 
[1898.589575][T12484] dst_alloc (net/core/dst.c:96) 
[1898.589575][T12484] ip6_dst_alloc (net/ipv6/route.c:342) 
[1898.589575][T12484] ip6_rt_pcpu_alloc (net/ipv6/route.c:1379) 
[1898.589575][T12484] ip6_pol_route (net/ipv6/route.c:1428 net/ipv6/route.c:2265) 
[1898.589575][T12484] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1898.589575][T12484] ip6_route_output_flags (net/ipv6/route.c:2637 net/ipv6/route.c:2649) 
[1898.589575][T12484] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1898.589575][T12484] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1898.589575][T12484] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1898.589575][T12484] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2524 (discriminator 4)) vxlan
[1898.589575][T12484] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2789) vxlan
[1898.589575][T12484] dev_hard_start_xmit (./include/linux/netdevice.h:4885 ./include/linux/netdevice.h:4899 net/core/dev.c:3578 net/core/dev.c:3594) 
[1898.589575][T12484] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1898.589575][T12484] arp_solicit (net/ipv4/arp.c:392) 
[1898.589575][T12484] neigh_probe (net/core/neighbour.c:1077) 
| [1898.589575][T12484] dev_hard_start_xmit (./include/linux/netdevice.h:4885 ./include/linux/netdevice.h:4899 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1898.589575][T12484] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1898.589575][T12484] arp_solicit (net/ipv4/arp.c:392) 
| [1898.589575][T12484] neigh_probe (net/core/neighbour.c:1077) 
| [ 1898.589575][T12484]
[ 1898.591877][T12484] ref_tracker: veth_A-R1@ffff8880060c45e0 has 1/4 users at
[1898.591877][T12484] dst_init (net/core/dst.c:53) 
[1898.591877][T12484] dst_alloc (net/core/dst.c:96) 
[1898.591877][T12484] ip6_dst_alloc (net/ipv6/route.c:342) 
[1898.591877][T12484] ip6_rt_pcpu_alloc (net/ipv6/route.c:1379) 
[1898.591877][T12484] ip6_pol_route (net/ipv6/route.c:1428 net/ipv6/route.c:2265) 
[1898.591877][T12484] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1898.591877][T12484] ip6_route_output_flags (net/ipv6/route.c:2637 net/ipv6/route.c:2649) 
[1898.591877][T12484] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1898.591877][T12484] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1898.591877][T12484] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1898.591877][T12484] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2524 (discriminator 4)) vxlan
[1898.591877][T12484] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2789) vxlan
[1898.591877][T12484] dev_hard_start_xmit (./include/linux/netdevice.h:4885 ./include/linux/netdevice.h:4899 net/core/dev.c:3578 net/core/dev.c:3594) 
[1898.591877][T12484] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1898.591877][T12484] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
[1898.591877][T12484] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [1898.591877][T12484] dev_hard_start_xmit (./include/linux/netdevice.h:4885 ./include/linux/netdevice.h:4899 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1898.591877][T12484] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1898.591877][T12484] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
| [1898.591877][T12484] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [ 1898.591877][T12484]
[ 1898.594146][T12484] ref_tracker: veth_A-R1@ffff8880060c45e0 has 1/4 users at
[1898.594146][T12484] netdev_get_by_index (net/core/dev.c:914) 
[1898.594146][T12484] fib6_nh_init (net/ipv6/route.c:3541) 
[1898.594146][T12484] nh_create_ipv6 (net/ipv4/nexthop.c:2827) 
[1898.594146][T12484] nexthop_create (net/ipv4/nexthop.c:2878) 
[1898.594146][T12484] rtm_new_nexthop (net/ipv4/nexthop.c:2920 net/ipv4/nexthop.c:3206) 
[1898.594146][T12484] rtnetlink_rcv_msg (net/core/rtnetlink.c:6641) 
[1898.594146][T12484] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[1898.594146][T12484] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[1898.594146][T12484] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[1898.594146][T12484] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2599) 
[1898.594146][T12484] ___sys_sendmsg (net/socket.c:2655) 
[1898.594146][T12484] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2684) 
[1898.594146][T12484] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[1898.594146][T12484] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [1898.594146][T12484] ___sys_sendmsg (net/socket.c:2655) 
| [1898.594146][T12484] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2684) 
| [1898.594146][T12484] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1898.594146][T12484] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [ 1898.594146][T12484]
[ 1898.596102][T12484] ref_tracker: veth_A-R1@ffff8880060c45e0 has 1/4 users at
[1898.596102][T12484] ipv6_add_dev (net/ipv6/addrconf.c:344 net/ipv6/addrconf.c:409) 
[1898.596102][T12484] addrconf_notify (net/ipv6/addrconf.c:3653) 
[1898.596102][T12484] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) 
[1898.596102][T12484] register_netdevice (./include/linux/notifier.h:207 net/core/dev.c:10409) 
[1898.596102][T12484] veth_newlink (drivers/net/veth.c:1860) 
[1898.596102][T12484] rtnl_newlink_create (net/core/rtnetlink.c:3510) 
[1898.596102][T12484] __rtnl_newlink (net/core/rtnetlink.c:3730) 
[1898.596102][T12484] rtnl_newlink (net/core/rtnetlink.c:3744) 
[1898.596102][T12484] rtnetlink_rcv_msg (net/core/rtnetlink.c:6641) 
[1898.596102][T12484] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[1898.596102][T12484] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[1898.596102][T12484] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[1898.596102][T12484] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2599) 
[1898.596102][T12484] ___sys_sendmsg (net/socket.c:2655) 
[1898.596102][T12484] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2684) 
[1898.596102][T12484] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1898.596102][T12484] ___sys_sendmsg (net/socket.c:2655) 
| [1898.596102][T12484] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2684) 
| [1898.596102][T12484] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [ 1898.596102][T12484]
| [ 1908.670144][T12484] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 5
[ 1908.670561][T12484] ref_tracker: veth_A-R1@ffff8880060c45e0 has 1/4 users at
[1908.670561][T12484] dst_init (net/core/dst.c:53) 
[1908.670561][T12484] dst_alloc (net/core/dst.c:96) 
[1908.670561][T12484] ip6_dst_alloc (net/ipv6/route.c:342) 
[1908.670561][T12484] ip6_rt_pcpu_alloc (net/ipv6/route.c:1379) 
[1908.670561][T12484] ip6_pol_route (net/ipv6/route.c:1428 net/ipv6/route.c:2265) 
[1908.670561][T12484] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1908.670561][T12484] ip6_route_output_flags (net/ipv6/route.c:2637 net/ipv6/route.c:2649) 
[1908.670561][T12484] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1908.670561][T12484] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1908.670561][T12484] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1908.670561][T12484] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2524 (discriminator 4)) vxlan
[1908.670561][T12484] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2789) vxlan
[1908.670561][T12484] dev_hard_start_xmit (./include/linux/netdevice.h:4885 ./include/linux/netdevice.h:4899 net/core/dev.c:3578 net/core/dev.c:3594) 
[1908.670561][T12484] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1908.670561][T12484] arp_solicit (net/ipv4/arp.c:392) 
[1908.670561][T12484] neigh_probe (net/core/neighbour.c:1077) 
| [1908.670561][T12484] dev_hard_start_xmit (./include/linux/netdevice.h:4885 ./include/linux/netdevice.h:4899 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1908.670561][T12484] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1908.670561][T12484] arp_solicit (net/ipv4/arp.c:392) 
| [1908.670561][T12484] neigh_probe (net/core/neighbour.c:1077) 
| [ 1908.670561][T12484]
[ 1908.673046][T12484] ref_tracker: veth_A-R1@ffff8880060c45e0 has 1/4 users at
[1908.673046][T12484] dst_init (net/core/dst.c:53) 
[1908.673046][T12484] dst_alloc (net/core/dst.c:96) 
[1908.673046][T12484] ip6_dst_alloc (net/ipv6/route.c:342) 
[1908.673046][T12484] ip6_rt_pcpu_alloc (net/ipv6/route.c:1379) 
[1908.673046][T12484] ip6_pol_route (net/ipv6/route.c:1428 net/ipv6/route.c:2265) 
[1908.673046][T12484] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1908.673046][T12484] ip6_route_output_flags (net/ipv6/route.c:2637 net/ipv6/route.c:2649) 
[1908.673046][T12484] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1908.673046][T12484] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1908.673046][T12484] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1908.673046][T12484] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2524 (discriminator 4)) vxlan
[1908.673046][T12484] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2789) vxlan
[1908.673046][T12484] dev_hard_start_xmit (./include/linux/netdevice.h:4885 ./include/linux/netdevice.h:4899 net/core/dev.c:3578 net/core/dev.c:3594) 
[1908.673046][T12484] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1908.673046][T12484] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
[1908.673046][T12484] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [1908.673046][T12484] dev_hard_start_xmit (./include/linux/netdevice.h:4885 ./include/linux/netdevice.h:4899 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1908.673046][T12484] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1908.673046][T12484] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
| [1908.673046][T12484] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [ 1908.673046][T12484]
[ 1908.675506][T12484] ref_tracker: veth_A-R1@ffff8880060c45e0 has 1/4 users at
[1908.675506][T12484] netdev_get_by_index (net/core/dev.c:914) 
[1908.675506][T12484] fib6_nh_init (net/ipv6/route.c:3541) 
[1908.675506][T12484] nh_create_ipv6 (net/ipv4/nexthop.c:2827) 
[1908.675506][T12484] nexthop_create (net/ipv4/nexthop.c:2878) 
[1908.675506][T12484] rtm_new_nexthop (net/ipv4/nexthop.c:2920 net/ipv4/nexthop.c:3206) 
[1908.675506][T12484] rtnetlink_rcv_msg (net/core/rtnetlink.c:6641) 
[1908.675506][T12484] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[1908.675506][T12484] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[1908.675506][T12484] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[1908.675506][T12484] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2599) 
[1908.675506][T12484] ___sys_sendmsg (net/socket.c:2655) 
[1908.675506][T12484] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2684) 
[1908.675506][T12484] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[1908.675506][T12484] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [1908.675506][T12484] ___sys_sendmsg (net/socket.c:2655) 
| [1908.675506][T12484] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2684) 
| [1908.675506][T12484] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1908.675506][T12484] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [ 1908.675506][T12484]
[ 1908.677622][T12484] ref_tracker: veth_A-R1@ffff8880060c45e0 has 1/4 users at
[1908.677622][T12484] ipv6_add_dev (net/ipv6/addrconf.c:344 net/ipv6/addrconf.c:409) 
[1908.677622][T12484] addrconf_notify (net/ipv6/addrconf.c:3653) 
[1908.677622][T12484] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) 
[1908.677622][T12484] register_netdevice (./include/linux/notifier.h:207 net/core/dev.c:10409) 
[1908.677622][T12484] veth_newlink (drivers/net/veth.c:1860) 
[1908.677622][T12484] rtnl_newlink_create (net/core/rtnetlink.c:3510) 
[1908.677622][T12484] __rtnl_newlink (net/core/rtnetlink.c:3730) 
[1908.677622][T12484] rtnl_newlink (net/core/rtnetlink.c:3744) 
[1908.677622][T12484] rtnetlink_rcv_msg (net/core/rtnetlink.c:6641) 
[1908.677622][T12484] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[1908.677622][T12484] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[1908.677622][T12484] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[1908.677622][T12484] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2599) 
[1908.677622][T12484] ___sys_sendmsg (net/socket.c:2655) 
[1908.677622][T12484] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2684) 


Finger prints:
dst_init:dst_alloc:ip6_dst_alloc:ip6_rt_pcpu_alloc:ip6_pol_route
dev_hard_start_xmit:__dev_queue_xmit:arp_solicit:neigh_probe:dst_init
dev_hard_start_xmit:__dev_queue_xmit:ip6_finish_output2:ip6_finish_output:netdev_get_by_index
___sys_sendmsg:__sys_sendmsg:do_syscall_64:ipv6_add_dev:addrconf_notify
___sys_sendmsg:__sys_sendmsg:do_syscall_64:dst_init:dst_alloc
dev_hard_start_xmit:__dev_queue_xmit:arp_solicit:neigh_probe:dst_init
dev_hard_start_xmit:__dev_queue_xmit:ip6_finish_output2:ip6_finish_output:netdev_get_by_index
___sys_sendmsg:__sys_sendmsg:do_syscall_64:ipv6_add_dev:addrconf_notify
___sys_sendmsg:__sys_sendmsg:do_syscall_64:dst_init:dst_alloc
dev_hard_start_xmit:__dev_queue_xmit:arp_solicit:neigh_probe:dst_init
dev_hard_start_xmit:__dev_queue_xmit:ip6_finish_output2:ip6_finish_output:netdev_get_by_index
___sys_sendmsg:__sys_sendmsg:do_syscall_64:ipv6_add_dev:addrconf_notify
___sys_sendmsg:__sys_sendmsg:do_syscall_64:dst_init:dst_alloc
dev_hard_start_xmit:__dev_queue_xmit:arp_solicit:neigh_probe:dst_init
dev_hard_start_xmit:__dev_queue_xmit:ip6_finish_output2:ip6_finish_output:netdev_get_by_index
___sys_sendmsg:__sys_sendmsg:do_syscall_64:ipv6_add_dev:addrconf_notify
___sys_sendmsg:__sys_sendmsg:do_syscall_64:dst_init:dst_alloc
dev_hard_start_xmit:__dev_queue_xmit:arp_solicit:neigh_probe:dst_init
dev_hard_start_xmit:__dev_queue_xmit:ip6_finish_output2:ip6_finish_output:netdev_get_by_index
___sys_sendmsg:__sys_sendmsg:do_syscall_64:ipv6_add_dev:addrconf_notify