unregister_netdevice: waiting for vlan1 to become free. Usage count = 3
ref_tracker: netdev@ffff88803350a618 has 1/1 users at
     __netdev_tracker_alloc include/linux/netdevice.h:4400 [inline]
     netdev_hold include/linux/netdevice.h:4429 [inline]
     ib_device_set_netdev+0x31f/0x6d0 drivers/infiniband/core/device.c:2253
     siw_device_create drivers/infiniband/sw/siw/siw_main.c:320 [inline]
     siw_newlink+0x400/0xdf0 drivers/infiniband/sw/siw/siw_main.c:426
     nldev_newlink+0x4a5/0x5a0 drivers/infiniband/core/nldev.c:1797
     rdma_nl_rcv_msg drivers/infiniband/core/netlink.c:-1 [inline]
     rdma_nl_rcv_skb drivers/infiniband/core/netlink.c:239 [inline]
     rdma_nl_rcv+0x6ae/0x980 drivers/infiniband/core/netlink.c:259
     netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
     netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1344
     netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1894
     sock_sendmsg_nosec net/socket.c:727 [inline]
     __sock_sendmsg+0x21c/0x270 net/socket.c:742
     ____sys_sendmsg+0x505/0x820 net/socket.c:2592
     ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2646
     __sys_sendmsg net/socket.c:2678 [inline]
     __do_sys_sendmsg net/socket.c:2683 [inline]
     __se_sys_sendmsg net/socket.c:2681 [inline]
     __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2681
     do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
     do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
     entry_SYSCALL_64_after_hwframe+0x77/0x7f

unregister_netdevice: waiting for veth0_vlan to become free. Usage count = 2
ref_tracker: netdev@ffff888030fd2618 has 1/1 users at
     __netdev_tracker_alloc include/linux/netdevice.h:4400 [inline]
     netdev_hold include/linux/netdevice.h:4429 [inline]
     vlan_dev_init+0xccb/0x10b0 net/8021q/vlan_dev.c:594
     register_netdevice+0x6b1/0x1a70 net/core/dev.c:11318
     register_vlan_dev+0x38b/0x800 net/8021q/vlan.c:179
     vlan_newlink+0x4b2/0x610 net/8021q/vlan_netlink.c:194
     rtnl_newlink_create+0x310/0xb00 net/core/rtnetlink.c:3840
     __rtnl_newlink net/core/rtnetlink.c:3957 [inline]
     rtnl_newlink+0x16e7/0x1c90 net/core/rtnetlink.c:4072
     rtnetlink_rcv_msg+0x7cf/0xb70 net/core/rtnetlink.c:6958
     netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2550
     netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
     netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1344
     netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1894
     sock_sendmsg_nosec net/socket.c:727 [inline]
     __sock_sendmsg+0x21c/0x270 net/socket.c:742
     __sys_sendto+0x3bd/0x520 net/socket.c:2206
     __do_sys_sendto net/socket.c:2213 [inline]
     __se_sys_sendto net/socket.c:2209 [inline]
     __x64_sys_sendto+0xde/0x100 net/socket.c:2209
     do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
     do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
     entry_SYSCALL_64_after_hwframe+0x77/0x7f