[20468.741940][T17235] unregister_netdevice: waiting for g2 to become free. Usage count = 4
[20468.742773][T17235] ref_tracker: g2@ffff8880051595d0 has 1/3 users at
[20468.742773][T17235]      netdev_get_by_index+0x5e/0x80
[20468.742773][T17235]      fib6_nh_init+0x3d8/0x15b0
[20468.742773][T17235]      ip6_route_info_create+0xf18/0x17d0
[20468.742773][T17235]      ip6_route_add+0x1c/0x140
[20468.742773][T17235]      addrconf_add_mroute+0x1ac/0x2c0
[20468.742773][T17235]      addrconf_add_dev+0xe2/0x170
[20468.742773][T17235]      inet6_addr_add+0x12f/0xa40
[20468.742773][T17235]      inet6_rtm_newaddr+0x560/0x6b0
[20468.742773][T17235]      rtnetlink_rcv_msg+0x2fb/0xbf0
[20468.742773][T17235]      netlink_rcv_skb+0x130/0x360
[20468.742773][T17235]      netlink_unicast+0x449/0x710
[20468.742773][T17235]      netlink_sendmsg+0x723/0xbe0
[20468.742773][T17235]      ____sys_sendmsg+0x7b2/0xa10
[20468.742773][T17235]      ___sys_sendmsg+0xee/0x170
[20468.742773][T17235]      __sys_sendmsg+0xcd/0x170
[20468.742773][T17235]      do_syscall_64+0xc6/0x1e0
[20468.742773][T17235] 
[20468.744970][T17235] ref_tracker: g2@ffff8880051595d0 has 1/3 users at
[20468.744970][T17235]      ipv6_add_dev+0x3b9/0x11c0
[20468.744970][T17235]      ipv6_find_idev+0x102/0x170
[20468.744970][T17235]      inet6_rtm_newaddr+0x37c/0x6b0
[20468.744970][T17235]      rtnetlink_rcv_msg+0x2fb/0xbf0
[20468.744970][T17235]      netlink_rcv_skb+0x130/0x360
[20468.744970][T17235]      netlink_unicast+0x449/0x710
[20468.744970][T17235]      netlink_sendmsg+0x723/0xbe0
[20468.744970][T17235]      ____sys_sendmsg+0x7b2/0xa10
[20468.744970][T17235]      ___sys_sendmsg+0xee/0x170
[20468.744970][T17235]      __sys_sendmsg+0xcd/0x170
[20468.744970][T17235]      do_syscall_64+0xc6/0x1e0
[20468.744970][T17235]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[20468.744970][T17235] 
[20468.746692][T17235] ref_tracker: g2@ffff8880051595d0 has 1/3 users at
[20468.746692][T17235]      neigh_parms_alloc+0x1e5/0x510
[20468.746692][T17235]      ipv6_add_dev+0x2fd/0x11c0
[20468.746692][T17235]      ipv6_find_idev+0x102/0x170
[20468.746692][T17235]      inet6_rtm_newaddr+0x37c/0x6b0
[20468.746692][T17235]      rtnetlink_rcv_msg+0x2fb/0xbf0
[20468.746692][T17235]      netlink_rcv_skb+0x130/0x360
[20468.746692][T17235]      netlink_unicast+0x449/0x710
[20468.746692][T17235]      netlink_sendmsg+0x723/0xbe0
[20468.746692][T17235]      ____sys_sendmsg+0x7b2/0xa10
[20468.746692][T17235]      ___sys_sendmsg+0xee/0x170
[20468.746692][T17235]      __sys_sendmsg+0xcd/0x170
[20468.746692][T17235]      do_syscall_64+0xc6/0x1e0
[20468.746692][T17235]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[20468.746692][T17235]