======================================
| [ 1024.785828][   T75] veth_A-C: left allmulticast mode
| [ 1024.786047][   T75] veth_A-C: left promiscuous mode
| [ 1024.786457][   T75] br0: port 1(veth_A-C) entered disabled state
| [ 1574.533194][T10777] Initializing XFRM netlink socket
| [ 1820.807398][T12481] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 6
[ 1820.808033][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1820.808033][T12481] dst_init (net/core/dst.c:53) 
[1820.808033][T12481] dst_alloc (net/core/dst.c:96) 
[1820.808033][T12481] ip6_dst_alloc (net/ipv6/route.c:344) 
[1820.808033][T12481] ip6_rt_pcpu_alloc (net/ipv6/route.c:1381) 
[1820.808033][T12481] ip6_pol_route (net/ipv6/route.c:1429 net/ipv6/route.c:2266) 
[1820.808033][T12481] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1820.808033][T12481] ip6_route_output_flags (net/ipv6/route.c:2638 net/ipv6/route.c:2650) 
[1820.808033][T12481] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1820.808033][T12481] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1820.808033][T12481] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1820.808033][T12481] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2534 (discriminator 4)) vxlan
[1820.808033][T12481] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2799) vxlan
[1820.808033][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
[1820.808033][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1820.808033][T12481] arp_solicit (net/ipv4/arp.c:392) 
[1820.808033][T12481] neigh_probe (net/core/neighbour.c:1077) 
| [1820.808033][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1820.808033][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1820.808033][T12481] arp_solicit (net/ipv4/arp.c:392) 
| [1820.808033][T12481] neigh_probe (net/core/neighbour.c:1077) 
| [ 1820.808033][T12481]
[ 1820.811104][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 2/5 users at
[1820.811104][T12481] dst_init (net/core/dst.c:53) 
[1820.811104][T12481] dst_alloc (net/core/dst.c:96) 
[1820.811104][T12481] ip6_dst_alloc (net/ipv6/route.c:344) 
[1820.811104][T12481] ip6_rt_pcpu_alloc (net/ipv6/route.c:1381) 
[1820.811104][T12481] ip6_pol_route (net/ipv6/route.c:1429 net/ipv6/route.c:2266) 
[1820.811104][T12481] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1820.811104][T12481] ip6_route_output_flags (net/ipv6/route.c:2638 net/ipv6/route.c:2650) 
[1820.811104][T12481] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1820.811104][T12481] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1820.811104][T12481] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1820.811104][T12481] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2534 (discriminator 4)) vxlan
[1820.811104][T12481] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2799) vxlan
[1820.811104][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
[1820.811104][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1820.811104][T12481] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
[1820.811104][T12481] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [1820.811104][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1820.811104][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1820.811104][T12481] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
| [1820.811104][T12481] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [ 1820.811104][T12481]
[ 1820.813709][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1820.813709][T12481] netdev_get_by_index (net/core/dev.c:914) 
[1820.813709][T12481] fib6_nh_init (net/ipv6/route.c:3542) 
[1820.813709][T12481] nh_create_ipv6 (net/ipv4/nexthop.c:2827) 
[1820.813709][T12481] nexthop_create (net/ipv4/nexthop.c:2878) 
[1820.813709][T12481] rtm_new_nexthop (net/ipv4/nexthop.c:2920 net/ipv4/nexthop.c:3206) 
[1820.813709][T12481] rtnetlink_rcv_msg (net/core/rtnetlink.c:6635) 
[1820.813709][T12481] netlink_rcv_skb (net/netlink/af_netlink.c:2564) 
[1820.813709][T12481] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) 
[1820.813709][T12481] netlink_sendmsg (net/netlink/af_netlink.c:1905) 
[1820.813709][T12481] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2585) 
[1820.813709][T12481] ___sys_sendmsg (net/socket.c:2641) 
[1820.813709][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
[1820.813709][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[1820.813709][T12481] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [1820.813709][T12481] ___sys_sendmsg (net/socket.c:2641) 
| [1820.813709][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
| [1820.813709][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1820.813709][T12481] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [ 1820.813709][T12481]
[ 1820.815956][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1820.815956][T12481] ipv6_add_dev (net/ipv6/addrconf.c:344 net/ipv6/addrconf.c:409) 
[1820.815956][T12481] addrconf_notify (net/ipv6/addrconf.c:3653) 
[1820.815956][T12481] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) 
[1820.815956][T12481] register_netdevice (./include/linux/notifier.h:207 net/core/dev.c:10409) 
[1820.815956][T12481] veth_newlink (drivers/net/veth.c:1860) 
[1820.815956][T12481] rtnl_newlink_create (net/core/rtnetlink.c:3510) 
[1820.815956][T12481] __rtnl_newlink (net/core/rtnetlink.c:3730) 
[1820.815956][T12481] rtnl_newlink (net/core/rtnetlink.c:3744) 
[1820.815956][T12481] rtnetlink_rcv_msg (net/core/rtnetlink.c:6635) 
[1820.815956][T12481] netlink_rcv_skb (net/netlink/af_netlink.c:2564) 
[1820.815956][T12481] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) 
[1820.815956][T12481] netlink_sendmsg (net/netlink/af_netlink.c:1905) 
[1820.815956][T12481] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2585) 
[1820.815956][T12481] ___sys_sendmsg (net/socket.c:2641) 
[1820.815956][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
[1820.815956][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1820.815956][T12481] ___sys_sendmsg (net/socket.c:2641) 
| [1820.815956][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
| [1820.815956][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [ 1820.815956][T12481]
| [ 1831.015420][T12481] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 6
[ 1831.015866][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1831.015866][T12481] dst_init (net/core/dst.c:53) 
[1831.015866][T12481] dst_alloc (net/core/dst.c:96) 
[1831.015866][T12481] ip6_dst_alloc (net/ipv6/route.c:344) 
[1831.015866][T12481] ip6_rt_pcpu_alloc (net/ipv6/route.c:1381) 
[1831.015866][T12481] ip6_pol_route (net/ipv6/route.c:1429 net/ipv6/route.c:2266) 
[1831.015866][T12481] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1831.015866][T12481] ip6_route_output_flags (net/ipv6/route.c:2638 net/ipv6/route.c:2650) 
[1831.015866][T12481] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1831.015866][T12481] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1831.015866][T12481] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1831.015866][T12481] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2534 (discriminator 4)) vxlan
[1831.015866][T12481] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2799) vxlan
[1831.015866][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
[1831.015866][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1831.015866][T12481] arp_solicit (net/ipv4/arp.c:392) 
[1831.015866][T12481] neigh_probe (net/core/neighbour.c:1077) 
| [1831.015866][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1831.015866][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1831.015866][T12481] arp_solicit (net/ipv4/arp.c:392) 
| [1831.015866][T12481] neigh_probe (net/core/neighbour.c:1077) 
| [ 1831.015866][T12481]
[ 1831.018435][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 2/5 users at
[1831.018435][T12481] dst_init (net/core/dst.c:53) 
[1831.018435][T12481] dst_alloc (net/core/dst.c:96) 
[1831.018435][T12481] ip6_dst_alloc (net/ipv6/route.c:344) 
[1831.018435][T12481] ip6_rt_pcpu_alloc (net/ipv6/route.c:1381) 
[1831.018435][T12481] ip6_pol_route (net/ipv6/route.c:1429 net/ipv6/route.c:2266) 
[1831.018435][T12481] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1831.018435][T12481] ip6_route_output_flags (net/ipv6/route.c:2638 net/ipv6/route.c:2650) 
[1831.018435][T12481] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1831.018435][T12481] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1831.018435][T12481] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1831.018435][T12481] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2534 (discriminator 4)) vxlan
[1831.018435][T12481] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2799) vxlan
[1831.018435][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
[1831.018435][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1831.018435][T12481] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
[1831.018435][T12481] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [1831.018435][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1831.018435][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1831.018435][T12481] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
| [1831.018435][T12481] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [ 1831.018435][T12481]
[ 1831.020998][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1831.020998][T12481] netdev_get_by_index (net/core/dev.c:914) 
[1831.020998][T12481] fib6_nh_init (net/ipv6/route.c:3542) 
[1831.020998][T12481] nh_create_ipv6 (net/ipv4/nexthop.c:2827) 
[1831.020998][T12481] nexthop_create (net/ipv4/nexthop.c:2878) 
[1831.020998][T12481] rtm_new_nexthop (net/ipv4/nexthop.c:2920 net/ipv4/nexthop.c:3206) 
[1831.020998][T12481] rtnetlink_rcv_msg (net/core/rtnetlink.c:6635) 
[1831.020998][T12481] netlink_rcv_skb (net/netlink/af_netlink.c:2564) 
[1831.020998][T12481] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) 
[1831.020998][T12481] netlink_sendmsg (net/netlink/af_netlink.c:1905) 
[1831.020998][T12481] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2585) 
[1831.020998][T12481] ___sys_sendmsg (net/socket.c:2641) 
[1831.020998][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
[1831.020998][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[1831.020998][T12481] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [1831.020998][T12481] ___sys_sendmsg (net/socket.c:2641) 
| [1831.020998][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
| [1831.020998][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1831.020998][T12481] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [ 1831.020998][T12481]
[ 1831.023199][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1831.023199][T12481] ipv6_add_dev (net/ipv6/addrconf.c:344 net/ipv6/addrconf.c:409) 
[1831.023199][T12481] addrconf_notify (net/ipv6/addrconf.c:3653) 
[1831.023199][T12481] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) 
[1831.023199][T12481] register_netdevice (./include/linux/notifier.h:207 net/core/dev.c:10409) 
[1831.023199][T12481] veth_newlink (drivers/net/veth.c:1860) 
[1831.023199][T12481] rtnl_newlink_create (net/core/rtnetlink.c:3510) 
[1831.023199][T12481] __rtnl_newlink (net/core/rtnetlink.c:3730) 
[1831.023199][T12481] rtnl_newlink (net/core/rtnetlink.c:3744) 
[1831.023199][T12481] rtnetlink_rcv_msg (net/core/rtnetlink.c:6635) 
[1831.023199][T12481] netlink_rcv_skb (net/netlink/af_netlink.c:2564) 
[1831.023199][T12481] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) 
[1831.023199][T12481] netlink_sendmsg (net/netlink/af_netlink.c:1905) 
[1831.023199][T12481] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2585) 
[1831.023199][T12481] ___sys_sendmsg (net/socket.c:2641) 
[1831.023199][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
[1831.023199][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1831.023199][T12481] ___sys_sendmsg (net/socket.c:2641) 
| [1831.023199][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
| [1831.023199][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [ 1831.023199][T12481]
| [ 1841.255375][T12481] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 6
[ 1841.255795][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1841.255795][T12481] dst_init (net/core/dst.c:53) 
[1841.255795][T12481] dst_alloc (net/core/dst.c:96) 
[1841.255795][T12481] ip6_dst_alloc (net/ipv6/route.c:344) 
[1841.255795][T12481] ip6_rt_pcpu_alloc (net/ipv6/route.c:1381) 
[1841.255795][T12481] ip6_pol_route (net/ipv6/route.c:1429 net/ipv6/route.c:2266) 
[1841.255795][T12481] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1841.255795][T12481] ip6_route_output_flags (net/ipv6/route.c:2638 net/ipv6/route.c:2650) 
[1841.255795][T12481] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1841.255795][T12481] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1841.255795][T12481] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1841.255795][T12481] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2534 (discriminator 4)) vxlan
[1841.255795][T12481] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2799) vxlan
[1841.255795][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
[1841.255795][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1841.255795][T12481] arp_solicit (net/ipv4/arp.c:392) 
[1841.255795][T12481] neigh_probe (net/core/neighbour.c:1077) 
| [1841.255795][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1841.255795][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1841.255795][T12481] arp_solicit (net/ipv4/arp.c:392) 
| [1841.255795][T12481] neigh_probe (net/core/neighbour.c:1077) 
| [ 1841.255795][T12481]
[ 1841.258170][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 2/5 users at
[1841.258170][T12481] dst_init (net/core/dst.c:53) 
[1841.258170][T12481] dst_alloc (net/core/dst.c:96) 
[1841.258170][T12481] ip6_dst_alloc (net/ipv6/route.c:344) 
[1841.258170][T12481] ip6_rt_pcpu_alloc (net/ipv6/route.c:1381) 
[1841.258170][T12481] ip6_pol_route (net/ipv6/route.c:1429 net/ipv6/route.c:2266) 
[1841.258170][T12481] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1841.258170][T12481] ip6_route_output_flags (net/ipv6/route.c:2638 net/ipv6/route.c:2650) 
[1841.258170][T12481] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1841.258170][T12481] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1841.258170][T12481] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1841.258170][T12481] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2534 (discriminator 4)) vxlan
[1841.258170][T12481] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2799) vxlan
[1841.258170][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
[1841.258170][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1841.258170][T12481] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
[1841.258170][T12481] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [1841.258170][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1841.258170][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1841.258170][T12481] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
| [1841.258170][T12481] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [ 1841.258170][T12481]
[ 1841.260507][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1841.260507][T12481] netdev_get_by_index (net/core/dev.c:914) 
[1841.260507][T12481] fib6_nh_init (net/ipv6/route.c:3542) 
[1841.260507][T12481] nh_create_ipv6 (net/ipv4/nexthop.c:2827) 
[1841.260507][T12481] nexthop_create (net/ipv4/nexthop.c:2878) 
[1841.260507][T12481] rtm_new_nexthop (net/ipv4/nexthop.c:2920 net/ipv4/nexthop.c:3206) 
[1841.260507][T12481] rtnetlink_rcv_msg (net/core/rtnetlink.c:6635) 
[1841.260507][T12481] netlink_rcv_skb (net/netlink/af_netlink.c:2564) 
[1841.260507][T12481] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) 
[1841.260507][T12481] netlink_sendmsg (net/netlink/af_netlink.c:1905) 
[1841.260507][T12481] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2585) 
[1841.260507][T12481] ___sys_sendmsg (net/socket.c:2641) 
[1841.260507][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
[1841.260507][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[1841.260507][T12481] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [1841.260507][T12481] ___sys_sendmsg (net/socket.c:2641) 
| [1841.260507][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
| [1841.260507][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1841.260507][T12481] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [ 1841.260507][T12481]
[ 1841.262511][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1841.262511][T12481] ipv6_add_dev (net/ipv6/addrconf.c:344 net/ipv6/addrconf.c:409) 
[1841.262511][T12481] addrconf_notify (net/ipv6/addrconf.c:3653) 
[1841.262511][T12481] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) 
[1841.262511][T12481] register_netdevice (./include/linux/notifier.h:207 net/core/dev.c:10409) 
[1841.262511][T12481] veth_newlink (drivers/net/veth.c:1860) 
[1841.262511][T12481] rtnl_newlink_create (net/core/rtnetlink.c:3510) 
[1841.262511][T12481] __rtnl_newlink (net/core/rtnetlink.c:3730) 
[1841.262511][T12481] rtnl_newlink (net/core/rtnetlink.c:3744) 
[1841.262511][T12481] rtnetlink_rcv_msg (net/core/rtnetlink.c:6635) 
[1841.262511][T12481] netlink_rcv_skb (net/netlink/af_netlink.c:2564) 
[1841.262511][T12481] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) 
[1841.262511][T12481] netlink_sendmsg (net/netlink/af_netlink.c:1905) 
[1841.262511][T12481] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2585) 
[1841.262511][T12481] ___sys_sendmsg (net/socket.c:2641) 
[1841.262511][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
[1841.262511][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1841.262511][T12481] ___sys_sendmsg (net/socket.c:2641) 
| [1841.262511][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
| [1841.262511][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [ 1841.262511][T12481]
| [ 1851.462572][T12481] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 6
[ 1851.462988][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1851.462988][T12481] dst_init (net/core/dst.c:53) 
[1851.462988][T12481] dst_alloc (net/core/dst.c:96) 
[1851.462988][T12481] ip6_dst_alloc (net/ipv6/route.c:344) 
[1851.462988][T12481] ip6_rt_pcpu_alloc (net/ipv6/route.c:1381) 
[1851.462988][T12481] ip6_pol_route (net/ipv6/route.c:1429 net/ipv6/route.c:2266) 
[1851.462988][T12481] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1851.462988][T12481] ip6_route_output_flags (net/ipv6/route.c:2638 net/ipv6/route.c:2650) 
[1851.462988][T12481] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1851.462988][T12481] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1851.462988][T12481] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1851.462988][T12481] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2534 (discriminator 4)) vxlan
[1851.462988][T12481] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2799) vxlan
[1851.462988][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
[1851.462988][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1851.462988][T12481] arp_solicit (net/ipv4/arp.c:392) 
[1851.462988][T12481] neigh_probe (net/core/neighbour.c:1077) 
| [1851.462988][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1851.462988][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1851.462988][T12481] arp_solicit (net/ipv4/arp.c:392) 
| [1851.462988][T12481] neigh_probe (net/core/neighbour.c:1077) 
| [ 1851.462988][T12481]
[ 1851.465416][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 2/5 users at
[1851.465416][T12481] dst_init (net/core/dst.c:53) 
[1851.465416][T12481] dst_alloc (net/core/dst.c:96) 
[1851.465416][T12481] ip6_dst_alloc (net/ipv6/route.c:344) 
[1851.465416][T12481] ip6_rt_pcpu_alloc (net/ipv6/route.c:1381) 
[1851.465416][T12481] ip6_pol_route (net/ipv6/route.c:1429 net/ipv6/route.c:2266) 
[1851.465416][T12481] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1851.465416][T12481] ip6_route_output_flags (net/ipv6/route.c:2638 net/ipv6/route.c:2650) 
[1851.465416][T12481] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1851.465416][T12481] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1851.465416][T12481] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1851.465416][T12481] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2534 (discriminator 4)) vxlan
[1851.465416][T12481] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2799) vxlan
[1851.465416][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
[1851.465416][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1851.465416][T12481] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
[1851.465416][T12481] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [1851.465416][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1851.465416][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1851.465416][T12481] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
| [1851.465416][T12481] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [ 1851.465416][T12481]
[ 1851.467928][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1851.467928][T12481] netdev_get_by_index (net/core/dev.c:914) 
[1851.467928][T12481] fib6_nh_init (net/ipv6/route.c:3542) 
[1851.467928][T12481] nh_create_ipv6 (net/ipv4/nexthop.c:2827) 
[1851.467928][T12481] nexthop_create (net/ipv4/nexthop.c:2878) 
[1851.467928][T12481] rtm_new_nexthop (net/ipv4/nexthop.c:2920 net/ipv4/nexthop.c:3206) 
[1851.467928][T12481] rtnetlink_rcv_msg (net/core/rtnetlink.c:6635) 
[1851.467928][T12481] netlink_rcv_skb (net/netlink/af_netlink.c:2564) 
[1851.467928][T12481] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) 
[1851.467928][T12481] netlink_sendmsg (net/netlink/af_netlink.c:1905) 
[1851.467928][T12481] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2585) 
[1851.467928][T12481] ___sys_sendmsg (net/socket.c:2641) 
[1851.467928][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
[1851.467928][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[1851.467928][T12481] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [1851.467928][T12481] ___sys_sendmsg (net/socket.c:2641) 
| [1851.467928][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
| [1851.467928][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1851.467928][T12481] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [ 1851.467928][T12481]
[ 1851.470045][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1851.470045][T12481] ipv6_add_dev (net/ipv6/addrconf.c:344 net/ipv6/addrconf.c:409) 
[1851.470045][T12481] addrconf_notify (net/ipv6/addrconf.c:3653) 
[1851.470045][T12481] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) 
[1851.470045][T12481] register_netdevice (./include/linux/notifier.h:207 net/core/dev.c:10409) 
[1851.470045][T12481] veth_newlink (drivers/net/veth.c:1860) 
[1851.470045][T12481] rtnl_newlink_create (net/core/rtnetlink.c:3510) 
[1851.470045][T12481] __rtnl_newlink (net/core/rtnetlink.c:3730) 
[1851.470045][T12481] rtnl_newlink (net/core/rtnetlink.c:3744) 
[1851.470045][T12481] rtnetlink_rcv_msg (net/core/rtnetlink.c:6635) 
[1851.470045][T12481] netlink_rcv_skb (net/netlink/af_netlink.c:2564) 
[1851.470045][T12481] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) 
[1851.470045][T12481] netlink_sendmsg (net/netlink/af_netlink.c:1905) 
[1851.470045][T12481] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2585) 
[1851.470045][T12481] ___sys_sendmsg (net/socket.c:2641) 
[1851.470045][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
[1851.470045][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1851.470045][T12481] ___sys_sendmsg (net/socket.c:2641) 
| [1851.470045][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
| [1851.470045][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [ 1851.470045][T12481]
| [ 1861.614376][T12481] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 6
[ 1861.614766][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1861.614766][T12481] dst_init (net/core/dst.c:53) 
[1861.614766][T12481] dst_alloc (net/core/dst.c:96) 
[1861.614766][T12481] ip6_dst_alloc (net/ipv6/route.c:344) 
[1861.614766][T12481] ip6_rt_pcpu_alloc (net/ipv6/route.c:1381) 
[1861.614766][T12481] ip6_pol_route (net/ipv6/route.c:1429 net/ipv6/route.c:2266) 
[1861.614766][T12481] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1861.614766][T12481] ip6_route_output_flags (net/ipv6/route.c:2638 net/ipv6/route.c:2650) 
[1861.614766][T12481] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1861.614766][T12481] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1861.614766][T12481] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1861.614766][T12481] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2534 (discriminator 4)) vxlan
[1861.614766][T12481] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2799) vxlan
[1861.614766][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
[1861.614766][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1861.614766][T12481] arp_solicit (net/ipv4/arp.c:392) 
[1861.614766][T12481] neigh_probe (net/core/neighbour.c:1077) 
| [1861.614766][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1861.614766][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1861.614766][T12481] arp_solicit (net/ipv4/arp.c:392) 
| [1861.614766][T12481] neigh_probe (net/core/neighbour.c:1077) 
| [ 1861.614766][T12481]
[ 1861.617007][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 2/5 users at
[1861.617007][T12481] dst_init (net/core/dst.c:53) 
[1861.617007][T12481] dst_alloc (net/core/dst.c:96) 
[1861.617007][T12481] ip6_dst_alloc (net/ipv6/route.c:344) 
[1861.617007][T12481] ip6_rt_pcpu_alloc (net/ipv6/route.c:1381) 
[1861.617007][T12481] ip6_pol_route (net/ipv6/route.c:1429 net/ipv6/route.c:2266) 
[1861.617007][T12481] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1861.617007][T12481] ip6_route_output_flags (net/ipv6/route.c:2638 net/ipv6/route.c:2650) 
[1861.617007][T12481] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1861.617007][T12481] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1861.617007][T12481] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1861.617007][T12481] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2534 (discriminator 4)) vxlan
[1861.617007][T12481] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2799) vxlan
[1861.617007][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
[1861.617007][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1861.617007][T12481] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
[1861.617007][T12481] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [1861.617007][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1861.617007][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1861.617007][T12481] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
| [1861.617007][T12481] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [ 1861.617007][T12481]
[ 1861.619277][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1861.619277][T12481] netdev_get_by_index (net/core/dev.c:914) 
[1861.619277][T12481] fib6_nh_init (net/ipv6/route.c:3542) 
[1861.619277][T12481] nh_create_ipv6 (net/ipv4/nexthop.c:2827) 
[1861.619277][T12481] nexthop_create (net/ipv4/nexthop.c:2878) 
[1861.619277][T12481] rtm_new_nexthop (net/ipv4/nexthop.c:2920 net/ipv4/nexthop.c:3206) 
[1861.619277][T12481] rtnetlink_rcv_msg (net/core/rtnetlink.c:6635) 
[1861.619277][T12481] netlink_rcv_skb (net/netlink/af_netlink.c:2564) 
[1861.619277][T12481] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) 
[1861.619277][T12481] netlink_sendmsg (net/netlink/af_netlink.c:1905) 
[1861.619277][T12481] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2585) 
[1861.619277][T12481] ___sys_sendmsg (net/socket.c:2641) 
[1861.619277][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
[1861.619277][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[1861.619277][T12481] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [1861.619277][T12481] ___sys_sendmsg (net/socket.c:2641) 
| [1861.619277][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
| [1861.619277][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1861.619277][T12481] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [ 1861.619277][T12481]
[ 1861.621247][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1861.621247][T12481] ipv6_add_dev (net/ipv6/addrconf.c:344 net/ipv6/addrconf.c:409) 
[1861.621247][T12481] addrconf_notify (net/ipv6/addrconf.c:3653) 
[1861.621247][T12481] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) 
[1861.621247][T12481] register_netdevice (./include/linux/notifier.h:207 net/core/dev.c:10409) 
[1861.621247][T12481] veth_newlink (drivers/net/veth.c:1860) 
[1861.621247][T12481] rtnl_newlink_create (net/core/rtnetlink.c:3510) 
[1861.621247][T12481] __rtnl_newlink (net/core/rtnetlink.c:3730) 
[1861.621247][T12481] rtnl_newlink (net/core/rtnetlink.c:3744) 
[1861.621247][T12481] rtnetlink_rcv_msg (net/core/rtnetlink.c:6635) 
[1861.621247][T12481] netlink_rcv_skb (net/netlink/af_netlink.c:2564) 
[1861.621247][T12481] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) 
[1861.621247][T12481] netlink_sendmsg (net/netlink/af_netlink.c:1905) 
[1861.621247][T12481] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2585) 
[1861.621247][T12481] ___sys_sendmsg (net/socket.c:2641) 
[1861.621247][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
[1861.621247][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1861.621247][T12481] ___sys_sendmsg (net/socket.c:2641) 
| [1861.621247][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
| [1861.621247][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [ 1861.621247][T12481]
| [ 1871.646473][T12481] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 6
[ 1871.646853][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1871.646853][T12481] dst_init (net/core/dst.c:53) 
[1871.646853][T12481] dst_alloc (net/core/dst.c:96) 
[1871.646853][T12481] ip6_dst_alloc (net/ipv6/route.c:344) 
[1871.646853][T12481] ip6_rt_pcpu_alloc (net/ipv6/route.c:1381) 
[1871.646853][T12481] ip6_pol_route (net/ipv6/route.c:1429 net/ipv6/route.c:2266) 
[1871.646853][T12481] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1871.646853][T12481] ip6_route_output_flags (net/ipv6/route.c:2638 net/ipv6/route.c:2650) 
[1871.646853][T12481] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1871.646853][T12481] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1871.646853][T12481] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1871.646853][T12481] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2534 (discriminator 4)) vxlan
[1871.646853][T12481] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2799) vxlan
[1871.646853][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
[1871.646853][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1871.646853][T12481] arp_solicit (net/ipv4/arp.c:392) 
[1871.646853][T12481] neigh_probe (net/core/neighbour.c:1077) 
| [1871.646853][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1871.646853][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1871.646853][T12481] arp_solicit (net/ipv4/arp.c:392) 
| [1871.646853][T12481] neigh_probe (net/core/neighbour.c:1077) 
| [ 1871.646853][T12481]
[ 1871.649166][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 2/5 users at
[1871.649166][T12481] dst_init (net/core/dst.c:53) 
[1871.649166][T12481] dst_alloc (net/core/dst.c:96) 
[1871.649166][T12481] ip6_dst_alloc (net/ipv6/route.c:344) 
[1871.649166][T12481] ip6_rt_pcpu_alloc (net/ipv6/route.c:1381) 
[1871.649166][T12481] ip6_pol_route (net/ipv6/route.c:1429 net/ipv6/route.c:2266) 
[1871.649166][T12481] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1871.649166][T12481] ip6_route_output_flags (net/ipv6/route.c:2638 net/ipv6/route.c:2650) 
[1871.649166][T12481] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1871.649166][T12481] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1871.649166][T12481] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1871.649166][T12481] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2534 (discriminator 4)) vxlan
[1871.649166][T12481] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2799) vxlan
[1871.649166][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
[1871.649166][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1871.649166][T12481] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
[1871.649166][T12481] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [1871.649166][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1871.649166][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1871.649166][T12481] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
| [1871.649166][T12481] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [ 1871.649166][T12481]
[ 1871.651454][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1871.651454][T12481] netdev_get_by_index (net/core/dev.c:914) 
[1871.651454][T12481] fib6_nh_init (net/ipv6/route.c:3542) 
[1871.651454][T12481] nh_create_ipv6 (net/ipv4/nexthop.c:2827) 
[1871.651454][T12481] nexthop_create (net/ipv4/nexthop.c:2878) 
[1871.651454][T12481] rtm_new_nexthop (net/ipv4/nexthop.c:2920 net/ipv4/nexthop.c:3206) 
[1871.651454][T12481] rtnetlink_rcv_msg (net/core/rtnetlink.c:6635) 
[1871.651454][T12481] netlink_rcv_skb (net/netlink/af_netlink.c:2564) 
[1871.651454][T12481] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) 
[1871.651454][T12481] netlink_sendmsg (net/netlink/af_netlink.c:1905) 
[1871.651454][T12481] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2585) 
[1871.651454][T12481] ___sys_sendmsg (net/socket.c:2641) 
[1871.651454][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
[1871.651454][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[1871.651454][T12481] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [1871.651454][T12481] ___sys_sendmsg (net/socket.c:2641) 
| [1871.651454][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
| [1871.651454][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1871.651454][T12481] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [ 1871.651454][T12481]
[ 1871.653410][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1871.653410][T12481] ipv6_add_dev (net/ipv6/addrconf.c:344 net/ipv6/addrconf.c:409) 
[1871.653410][T12481] addrconf_notify (net/ipv6/addrconf.c:3653) 
[1871.653410][T12481] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) 
[1871.653410][T12481] register_netdevice (./include/linux/notifier.h:207 net/core/dev.c:10409) 
[1871.653410][T12481] veth_newlink (drivers/net/veth.c:1860) 
[1871.653410][T12481] rtnl_newlink_create (net/core/rtnetlink.c:3510) 
[1871.653410][T12481] __rtnl_newlink (net/core/rtnetlink.c:3730) 
[1871.653410][T12481] rtnl_newlink (net/core/rtnetlink.c:3744) 
[1871.653410][T12481] rtnetlink_rcv_msg (net/core/rtnetlink.c:6635) 
[1871.653410][T12481] netlink_rcv_skb (net/netlink/af_netlink.c:2564) 
[1871.653410][T12481] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) 
[1871.653410][T12481] netlink_sendmsg (net/netlink/af_netlink.c:1905) 
[1871.653410][T12481] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2585) 
[1871.653410][T12481] ___sys_sendmsg (net/socket.c:2641) 
[1871.653410][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
[1871.653410][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1871.653410][T12481] ___sys_sendmsg (net/socket.c:2641) 
| [1871.653410][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
| [1871.653410][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [ 1871.653410][T12481]
| [ 1881.678451][T12481] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 6
[ 1881.679020][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1881.679020][T12481] dst_init (net/core/dst.c:53) 
[1881.679020][T12481] dst_alloc (net/core/dst.c:96) 
[1881.679020][T12481] ip6_dst_alloc (net/ipv6/route.c:344) 
[1881.679020][T12481] ip6_rt_pcpu_alloc (net/ipv6/route.c:1381) 
[1881.679020][T12481] ip6_pol_route (net/ipv6/route.c:1429 net/ipv6/route.c:2266) 
[1881.679020][T12481] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1881.679020][T12481] ip6_route_output_flags (net/ipv6/route.c:2638 net/ipv6/route.c:2650) 
[1881.679020][T12481] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1881.679020][T12481] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1881.679020][T12481] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1881.679020][T12481] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2534 (discriminator 4)) vxlan
[1881.679020][T12481] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2799) vxlan
[1881.679020][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
[1881.679020][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1881.679020][T12481] arp_solicit (net/ipv4/arp.c:392) 
[1881.679020][T12481] neigh_probe (net/core/neighbour.c:1077) 
| [1881.679020][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1881.679020][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1881.679020][T12481] arp_solicit (net/ipv4/arp.c:392) 
| [1881.679020][T12481] neigh_probe (net/core/neighbour.c:1077) 
| [ 1881.679020][T12481]
[ 1881.681483][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 2/5 users at
[1881.681483][T12481] dst_init (net/core/dst.c:53) 
[1881.681483][T12481] dst_alloc (net/core/dst.c:96) 
[1881.681483][T12481] ip6_dst_alloc (net/ipv6/route.c:344) 
[1881.681483][T12481] ip6_rt_pcpu_alloc (net/ipv6/route.c:1381) 
[1881.681483][T12481] ip6_pol_route (net/ipv6/route.c:1429 net/ipv6/route.c:2266) 
[1881.681483][T12481] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1881.681483][T12481] ip6_route_output_flags (net/ipv6/route.c:2638 net/ipv6/route.c:2650) 
[1881.681483][T12481] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1881.681483][T12481] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1881.681483][T12481] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1881.681483][T12481] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2534 (discriminator 4)) vxlan
[1881.681483][T12481] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2799) vxlan
[1881.681483][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
[1881.681483][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1881.681483][T12481] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
[1881.681483][T12481] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [1881.681483][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1881.681483][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1881.681483][T12481] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
| [1881.681483][T12481] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [ 1881.681483][T12481]
[ 1881.683905][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1881.683905][T12481] netdev_get_by_index (net/core/dev.c:914) 
[1881.683905][T12481] fib6_nh_init (net/ipv6/route.c:3542) 
[1881.683905][T12481] nh_create_ipv6 (net/ipv4/nexthop.c:2827) 
[1881.683905][T12481] nexthop_create (net/ipv4/nexthop.c:2878) 
[1881.683905][T12481] rtm_new_nexthop (net/ipv4/nexthop.c:2920 net/ipv4/nexthop.c:3206) 
[1881.683905][T12481] rtnetlink_rcv_msg (net/core/rtnetlink.c:6635) 
[1881.683905][T12481] netlink_rcv_skb (net/netlink/af_netlink.c:2564) 
[1881.683905][T12481] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) 
[1881.683905][T12481] netlink_sendmsg (net/netlink/af_netlink.c:1905) 
[1881.683905][T12481] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2585) 
[1881.683905][T12481] ___sys_sendmsg (net/socket.c:2641) 
[1881.683905][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
[1881.683905][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[1881.683905][T12481] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [1881.683905][T12481] ___sys_sendmsg (net/socket.c:2641) 
| [1881.683905][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
| [1881.683905][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1881.683905][T12481] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [ 1881.683905][T12481]
[ 1881.686021][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1881.686021][T12481] ipv6_add_dev (net/ipv6/addrconf.c:344 net/ipv6/addrconf.c:409) 
[1881.686021][T12481] addrconf_notify (net/ipv6/addrconf.c:3653) 
[1881.686021][T12481] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) 
[1881.686021][T12481] register_netdevice (./include/linux/notifier.h:207 net/core/dev.c:10409) 
[1881.686021][T12481] veth_newlink (drivers/net/veth.c:1860) 
[1881.686021][T12481] rtnl_newlink_create (net/core/rtnetlink.c:3510) 
[1881.686021][T12481] __rtnl_newlink (net/core/rtnetlink.c:3730) 
[1881.686021][T12481] rtnl_newlink (net/core/rtnetlink.c:3744) 
[1881.686021][T12481] rtnetlink_rcv_msg (net/core/rtnetlink.c:6635) 
[1881.686021][T12481] netlink_rcv_skb (net/netlink/af_netlink.c:2564) 
[1881.686021][T12481] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) 
[1881.686021][T12481] netlink_sendmsg (net/netlink/af_netlink.c:1905) 
[1881.686021][T12481] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2585) 
[1881.686021][T12481] ___sys_sendmsg (net/socket.c:2641) 
[1881.686021][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
[1881.686021][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1881.686021][T12481] ___sys_sendmsg (net/socket.c:2641) 
| [1881.686021][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
| [1881.686021][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [ 1881.686021][T12481]
| [ 1891.942392][T12481] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 6
[ 1891.942841][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1891.942841][T12481] dst_init (net/core/dst.c:53) 
[1891.942841][T12481] dst_alloc (net/core/dst.c:96) 
[1891.942841][T12481] ip6_dst_alloc (net/ipv6/route.c:344) 
[1891.942841][T12481] ip6_rt_pcpu_alloc (net/ipv6/route.c:1381) 
[1891.942841][T12481] ip6_pol_route (net/ipv6/route.c:1429 net/ipv6/route.c:2266) 
[1891.942841][T12481] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1891.942841][T12481] ip6_route_output_flags (net/ipv6/route.c:2638 net/ipv6/route.c:2650) 
[1891.942841][T12481] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1891.942841][T12481] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1891.942841][T12481] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1891.942841][T12481] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2534 (discriminator 4)) vxlan
[1891.942841][T12481] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2799) vxlan
[1891.942841][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
[1891.942841][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1891.942841][T12481] arp_solicit (net/ipv4/arp.c:392) 
[1891.942841][T12481] neigh_probe (net/core/neighbour.c:1077) 
| [1891.942841][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1891.942841][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1891.942841][T12481] arp_solicit (net/ipv4/arp.c:392) 
| [1891.942841][T12481] neigh_probe (net/core/neighbour.c:1077) 
| [ 1891.942841][T12481]
[ 1891.945202][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 2/5 users at
[1891.945202][T12481] dst_init (net/core/dst.c:53) 
[1891.945202][T12481] dst_alloc (net/core/dst.c:96) 
[1891.945202][T12481] ip6_dst_alloc (net/ipv6/route.c:344) 
[1891.945202][T12481] ip6_rt_pcpu_alloc (net/ipv6/route.c:1381) 
[1891.945202][T12481] ip6_pol_route (net/ipv6/route.c:1429 net/ipv6/route.c:2266) 
[1891.945202][T12481] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1891.945202][T12481] ip6_route_output_flags (net/ipv6/route.c:2638 net/ipv6/route.c:2650) 
[1891.945202][T12481] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1891.945202][T12481] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1891.945202][T12481] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1891.945202][T12481] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2534 (discriminator 4)) vxlan
[1891.945202][T12481] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2799) vxlan
[1891.945202][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
[1891.945202][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1891.945202][T12481] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
[1891.945202][T12481] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [1891.945202][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1891.945202][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1891.945202][T12481] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
| [1891.945202][T12481] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [ 1891.945202][T12481]
[ 1891.947587][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1891.947587][T12481] netdev_get_by_index (net/core/dev.c:914) 
[1891.947587][T12481] fib6_nh_init (net/ipv6/route.c:3542) 
[1891.947587][T12481] nh_create_ipv6 (net/ipv4/nexthop.c:2827) 
[1891.947587][T12481] nexthop_create (net/ipv4/nexthop.c:2878) 
[1891.947587][T12481] rtm_new_nexthop (net/ipv4/nexthop.c:2920 net/ipv4/nexthop.c:3206) 
[1891.947587][T12481] rtnetlink_rcv_msg (net/core/rtnetlink.c:6635) 
[1891.947587][T12481] netlink_rcv_skb (net/netlink/af_netlink.c:2564) 
[1891.947587][T12481] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) 
[1891.947587][T12481] netlink_sendmsg (net/netlink/af_netlink.c:1905) 
[1891.947587][T12481] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2585) 
[1891.947587][T12481] ___sys_sendmsg (net/socket.c:2641) 
[1891.947587][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
[1891.947587][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[1891.947587][T12481] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [1891.947587][T12481] ___sys_sendmsg (net/socket.c:2641) 
| [1891.947587][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
| [1891.947587][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1891.947587][T12481] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [ 1891.947587][T12481]
[ 1891.949712][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1891.949712][T12481] ipv6_add_dev (net/ipv6/addrconf.c:344 net/ipv6/addrconf.c:409) 
[1891.949712][T12481] addrconf_notify (net/ipv6/addrconf.c:3653) 
[1891.949712][T12481] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) 
[1891.949712][T12481] register_netdevice (./include/linux/notifier.h:207 net/core/dev.c:10409) 
[1891.949712][T12481] veth_newlink (drivers/net/veth.c:1860) 
[1891.949712][T12481] rtnl_newlink_create (net/core/rtnetlink.c:3510) 
[1891.949712][T12481] __rtnl_newlink (net/core/rtnetlink.c:3730) 
[1891.949712][T12481] rtnl_newlink (net/core/rtnetlink.c:3744) 
[1891.949712][T12481] rtnetlink_rcv_msg (net/core/rtnetlink.c:6635) 
[1891.949712][T12481] netlink_rcv_skb (net/netlink/af_netlink.c:2564) 
[1891.949712][T12481] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) 
[1891.949712][T12481] netlink_sendmsg (net/netlink/af_netlink.c:1905) 
[1891.949712][T12481] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2585) 
[1891.949712][T12481] ___sys_sendmsg (net/socket.c:2641) 
[1891.949712][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
[1891.949712][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1891.949712][T12481] ___sys_sendmsg (net/socket.c:2641) 
| [1891.949712][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
| [1891.949712][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [ 1891.949712][T12481]
| [ 1902.102607][T12481] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 6
[ 1902.103150][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1902.103150][T12481] dst_init (net/core/dst.c:53) 
[1902.103150][T12481] dst_alloc (net/core/dst.c:96) 
[1902.103150][T12481] ip6_dst_alloc (net/ipv6/route.c:344) 
[1902.103150][T12481] ip6_rt_pcpu_alloc (net/ipv6/route.c:1381) 
[1902.103150][T12481] ip6_pol_route (net/ipv6/route.c:1429 net/ipv6/route.c:2266) 
[1902.103150][T12481] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1902.103150][T12481] ip6_route_output_flags (net/ipv6/route.c:2638 net/ipv6/route.c:2650) 
[1902.103150][T12481] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1902.103150][T12481] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1902.103150][T12481] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1902.103150][T12481] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2534 (discriminator 4)) vxlan
[1902.103150][T12481] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2799) vxlan
[1902.103150][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
[1902.103150][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1902.103150][T12481] arp_solicit (net/ipv4/arp.c:392) 
[1902.103150][T12481] neigh_probe (net/core/neighbour.c:1077) 
| [1902.103150][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1902.103150][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1902.103150][T12481] arp_solicit (net/ipv4/arp.c:392) 
| [1902.103150][T12481] neigh_probe (net/core/neighbour.c:1077) 
| [ 1902.103150][T12481]
[ 1902.105490][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 2/5 users at
[1902.105490][T12481] dst_init (net/core/dst.c:53) 
[1902.105490][T12481] dst_alloc (net/core/dst.c:96) 
[1902.105490][T12481] ip6_dst_alloc (net/ipv6/route.c:344) 
[1902.105490][T12481] ip6_rt_pcpu_alloc (net/ipv6/route.c:1381) 
[1902.105490][T12481] ip6_pol_route (net/ipv6/route.c:1429 net/ipv6/route.c:2266) 
[1902.105490][T12481] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1902.105490][T12481] ip6_route_output_flags (net/ipv6/route.c:2638 net/ipv6/route.c:2650) 
[1902.105490][T12481] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1902.105490][T12481] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1902.105490][T12481] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1902.105490][T12481] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2534 (discriminator 4)) vxlan
[1902.105490][T12481] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2799) vxlan
[1902.105490][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
[1902.105490][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1902.105490][T12481] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
[1902.105490][T12481] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [1902.105490][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1902.105490][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1902.105490][T12481] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
| [1902.105490][T12481] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [ 1902.105490][T12481]
[ 1902.107749][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1902.107749][T12481] netdev_get_by_index (net/core/dev.c:914) 
[1902.107749][T12481] fib6_nh_init (net/ipv6/route.c:3542) 
[1902.107749][T12481] nh_create_ipv6 (net/ipv4/nexthop.c:2827) 
[1902.107749][T12481] nexthop_create (net/ipv4/nexthop.c:2878) 
[1902.107749][T12481] rtm_new_nexthop (net/ipv4/nexthop.c:2920 net/ipv4/nexthop.c:3206) 
[1902.107749][T12481] rtnetlink_rcv_msg (net/core/rtnetlink.c:6635) 
[1902.107749][T12481] netlink_rcv_skb (net/netlink/af_netlink.c:2564) 
[1902.107749][T12481] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) 
[1902.107749][T12481] netlink_sendmsg (net/netlink/af_netlink.c:1905) 
[1902.107749][T12481] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2585) 
[1902.107749][T12481] ___sys_sendmsg (net/socket.c:2641) 
[1902.107749][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
[1902.107749][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[1902.107749][T12481] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [1902.107749][T12481] ___sys_sendmsg (net/socket.c:2641) 
| [1902.107749][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
| [1902.107749][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1902.107749][T12481] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [ 1902.107749][T12481]
[ 1902.109676][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1902.109676][T12481] ipv6_add_dev (net/ipv6/addrconf.c:344 net/ipv6/addrconf.c:409) 
[1902.109676][T12481] addrconf_notify (net/ipv6/addrconf.c:3653) 
[1902.109676][T12481] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) 
[1902.109676][T12481] register_netdevice (./include/linux/notifier.h:207 net/core/dev.c:10409) 
[1902.109676][T12481] veth_newlink (drivers/net/veth.c:1860) 
[1902.109676][T12481] rtnl_newlink_create (net/core/rtnetlink.c:3510) 
[1902.109676][T12481] __rtnl_newlink (net/core/rtnetlink.c:3730) 
[1902.109676][T12481] rtnl_newlink (net/core/rtnetlink.c:3744) 
[1902.109676][T12481] rtnetlink_rcv_msg (net/core/rtnetlink.c:6635) 
[1902.109676][T12481] netlink_rcv_skb (net/netlink/af_netlink.c:2564) 
[1902.109676][T12481] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) 
[1902.109676][T12481] netlink_sendmsg (net/netlink/af_netlink.c:1905) 
[1902.109676][T12481] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2585) 
[1902.109676][T12481] ___sys_sendmsg (net/socket.c:2641) 
[1902.109676][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
[1902.109676][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1902.109676][T12481] ___sys_sendmsg (net/socket.c:2641) 
| [1902.109676][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
| [1902.109676][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [ 1902.109676][T12481]
| [ 1912.366552][T12481] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 6
[ 1912.366956][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1912.366956][T12481] dst_init (net/core/dst.c:53) 
[1912.366956][T12481] dst_alloc (net/core/dst.c:96) 
[1912.366956][T12481] ip6_dst_alloc (net/ipv6/route.c:344) 
[1912.366956][T12481] ip6_rt_pcpu_alloc (net/ipv6/route.c:1381) 
[1912.366956][T12481] ip6_pol_route (net/ipv6/route.c:1429 net/ipv6/route.c:2266) 
[1912.366956][T12481] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1912.366956][T12481] ip6_route_output_flags (net/ipv6/route.c:2638 net/ipv6/route.c:2650) 
[1912.366956][T12481] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1912.366956][T12481] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1912.366956][T12481] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1912.366956][T12481] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2534 (discriminator 4)) vxlan
[1912.366956][T12481] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2799) vxlan
[1912.366956][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
[1912.366956][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1912.366956][T12481] arp_solicit (net/ipv4/arp.c:392) 
[1912.366956][T12481] neigh_probe (net/core/neighbour.c:1077) 
| [1912.366956][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1912.366956][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1912.366956][T12481] arp_solicit (net/ipv4/arp.c:392) 
| [1912.366956][T12481] neigh_probe (net/core/neighbour.c:1077) 
| [ 1912.366956][T12481]
[ 1912.369195][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 2/5 users at
[1912.369195][T12481] dst_init (net/core/dst.c:53) 
[1912.369195][T12481] dst_alloc (net/core/dst.c:96) 
[1912.369195][T12481] ip6_dst_alloc (net/ipv6/route.c:344) 
[1912.369195][T12481] ip6_rt_pcpu_alloc (net/ipv6/route.c:1381) 
[1912.369195][T12481] ip6_pol_route (net/ipv6/route.c:1429 net/ipv6/route.c:2266) 
[1912.369195][T12481] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1912.369195][T12481] ip6_route_output_flags (net/ipv6/route.c:2638 net/ipv6/route.c:2650) 
[1912.369195][T12481] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1912.369195][T12481] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1912.369195][T12481] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1912.369195][T12481] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2534 (discriminator 4)) vxlan
[1912.369195][T12481] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2799) vxlan
[1912.369195][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
[1912.369195][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1912.369195][T12481] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
[1912.369195][T12481] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [1912.369195][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1912.369195][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1912.369195][T12481] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
| [1912.369195][T12481] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [ 1912.369195][T12481]
[ 1912.371452][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1912.371452][T12481] netdev_get_by_index (net/core/dev.c:914) 
[1912.371452][T12481] fib6_nh_init (net/ipv6/route.c:3542) 
[1912.371452][T12481] nh_create_ipv6 (net/ipv4/nexthop.c:2827) 
[1912.371452][T12481] nexthop_create (net/ipv4/nexthop.c:2878) 
[1912.371452][T12481] rtm_new_nexthop (net/ipv4/nexthop.c:2920 net/ipv4/nexthop.c:3206) 
[1912.371452][T12481] rtnetlink_rcv_msg (net/core/rtnetlink.c:6635) 
[1912.371452][T12481] netlink_rcv_skb (net/netlink/af_netlink.c:2564) 
[1912.371452][T12481] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) 
[1912.371452][T12481] netlink_sendmsg (net/netlink/af_netlink.c:1905) 
[1912.371452][T12481] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2585) 
[1912.371452][T12481] ___sys_sendmsg (net/socket.c:2641) 
[1912.371452][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
[1912.371452][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[1912.371452][T12481] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [1912.371452][T12481] ___sys_sendmsg (net/socket.c:2641) 
| [1912.371452][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
| [1912.371452][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1912.371452][T12481] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [ 1912.371452][T12481]
[ 1912.373388][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1912.373388][T12481] ipv6_add_dev (net/ipv6/addrconf.c:344 net/ipv6/addrconf.c:409) 
[1912.373388][T12481] addrconf_notify (net/ipv6/addrconf.c:3653) 
[1912.373388][T12481] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) 
[1912.373388][T12481] register_netdevice (./include/linux/notifier.h:207 net/core/dev.c:10409) 
[1912.373388][T12481] veth_newlink (drivers/net/veth.c:1860) 
[1912.373388][T12481] rtnl_newlink_create (net/core/rtnetlink.c:3510) 
[1912.373388][T12481] __rtnl_newlink (net/core/rtnetlink.c:3730) 
[1912.373388][T12481] rtnl_newlink (net/core/rtnetlink.c:3744) 
[1912.373388][T12481] rtnetlink_rcv_msg (net/core/rtnetlink.c:6635) 
[1912.373388][T12481] netlink_rcv_skb (net/netlink/af_netlink.c:2564) 
[1912.373388][T12481] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) 
[1912.373388][T12481] netlink_sendmsg (net/netlink/af_netlink.c:1905) 
[1912.373388][T12481] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2585) 
[1912.373388][T12481] ___sys_sendmsg (net/socket.c:2641) 
[1912.373388][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
[1912.373388][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1912.373388][T12481] ___sys_sendmsg (net/socket.c:2641) 
| [1912.373388][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
| [1912.373388][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [ 1912.373388][T12481]
| [ 1922.502465][T12481] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 6
[ 1922.502864][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1922.502864][T12481] dst_init (net/core/dst.c:53) 
[1922.502864][T12481] dst_alloc (net/core/dst.c:96) 
[1922.502864][T12481] ip6_dst_alloc (net/ipv6/route.c:344) 
[1922.502864][T12481] ip6_rt_pcpu_alloc (net/ipv6/route.c:1381) 
[1922.502864][T12481] ip6_pol_route (net/ipv6/route.c:1429 net/ipv6/route.c:2266) 
[1922.502864][T12481] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1922.502864][T12481] ip6_route_output_flags (net/ipv6/route.c:2638 net/ipv6/route.c:2650) 
[1922.502864][T12481] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1922.502864][T12481] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1922.502864][T12481] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1922.502864][T12481] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2534 (discriminator 4)) vxlan
[1922.502864][T12481] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2799) vxlan
[1922.502864][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
[1922.502864][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1922.502864][T12481] arp_solicit (net/ipv4/arp.c:392) 
[1922.502864][T12481] neigh_probe (net/core/neighbour.c:1077) 
| [1922.502864][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1922.502864][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1922.502864][T12481] arp_solicit (net/ipv4/arp.c:392) 
| [1922.502864][T12481] neigh_probe (net/core/neighbour.c:1077) 
| [ 1922.502864][T12481]
[ 1922.505235][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 2/5 users at
[1922.505235][T12481] dst_init (net/core/dst.c:53) 
[1922.505235][T12481] dst_alloc (net/core/dst.c:96) 
[1922.505235][T12481] ip6_dst_alloc (net/ipv6/route.c:344) 
[1922.505235][T12481] ip6_rt_pcpu_alloc (net/ipv6/route.c:1381) 
[1922.505235][T12481] ip6_pol_route (net/ipv6/route.c:1429 net/ipv6/route.c:2266) 
[1922.505235][T12481] fib6_rule_lookup (./include/net/ip6_fib.h:616 net/ipv6/fib6_rules.c:121) 
[1922.505235][T12481] ip6_route_output_flags (net/ipv6/route.c:2638 net/ipv6/route.c:2650) 
[1922.505235][T12481] ip6_dst_lookup_tail.constprop.0 (net/ipv6/ip6_output.c:1147) 
[1922.505235][T12481] ip6_dst_lookup_flow (net/ipv6/ip6_output.c:1251) 
[1922.505235][T12481] udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:165 net/ipv6/ip6_udp_tunnel.c:135) 
[1922.505235][T12481] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2534 (discriminator 4)) vxlan
[1922.505235][T12481] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2799) vxlan
[1922.505235][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
[1922.505235][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
[1922.505235][T12481] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
[1922.505235][T12481] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [1922.505235][T12481] dev_hard_start_xmit (./include/linux/netdevice.h:4882 ./include/linux/netdevice.h:4896 net/core/dev.c:3578 net/core/dev.c:3594) 
| [1922.505235][T12481] __dev_queue_xmit (net/core/dev.h:166 net/core/dev.c:4394) 
| [1922.505235][T12481] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) 
| [1922.505235][T12481] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
| [ 1922.505235][T12481]
[ 1922.507626][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1922.507626][T12481] netdev_get_by_index (net/core/dev.c:914) 
[1922.507626][T12481] fib6_nh_init (net/ipv6/route.c:3542) 
[1922.507626][T12481] nh_create_ipv6 (net/ipv4/nexthop.c:2827) 
[1922.507626][T12481] nexthop_create (net/ipv4/nexthop.c:2878) 
[1922.507626][T12481] rtm_new_nexthop (net/ipv4/nexthop.c:2920 net/ipv4/nexthop.c:3206) 
[1922.507626][T12481] rtnetlink_rcv_msg (net/core/rtnetlink.c:6635) 
[1922.507626][T12481] netlink_rcv_skb (net/netlink/af_netlink.c:2564) 
[1922.507626][T12481] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) 
[1922.507626][T12481] netlink_sendmsg (net/netlink/af_netlink.c:1905) 
[1922.507626][T12481] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2585) 
[1922.507626][T12481] ___sys_sendmsg (net/socket.c:2641) 
[1922.507626][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
[1922.507626][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[1922.507626][T12481] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [1922.507626][T12481] ___sys_sendmsg (net/socket.c:2641) 
| [1922.507626][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 
| [1922.507626][T12481] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
| [1922.507626][T12481] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [ 1922.507626][T12481]
[ 1922.509588][T12481] ref_tracker: veth_A-R1@ffff888005ea15e0 has 1/5 users at
[1922.509588][T12481] ipv6_add_dev (net/ipv6/addrconf.c:344 net/ipv6/addrconf.c:409) 
[1922.509588][T12481] addrconf_notify (net/ipv6/addrconf.c:3653) 
[1922.509588][T12481] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) 
[1922.509588][T12481] register_netdevice (./include/linux/notifier.h:207 net/core/dev.c:10409) 
[1922.509588][T12481] veth_newlink (drivers/net/veth.c:1860) 
[1922.509588][T12481] rtnl_newlink_create (net/core/rtnetlink.c:3510) 
[1922.509588][T12481] __rtnl_newlink (net/core/rtnetlink.c:3730) 
[1922.509588][T12481] rtnl_newlink (net/core/rtnetlink.c:3744) 
[1922.509588][T12481] rtnetlink_rcv_msg (net/core/rtnetlink.c:6635) 
[1922.509588][T12481] netlink_rcv_skb (net/netlink/af_netlink.c:2564) 
[1922.509588][T12481] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) 
[1922.509588][T12481] netlink_sendmsg (net/netlink/af_netlink.c:1905) 
[1922.509588][T12481] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2585) 
[1922.509588][T12481] ___sys_sendmsg (net/socket.c:2641) 
[1922.509588][T12481] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2670) 


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
___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
___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