[ 38.338427][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 38.338943][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 38.338943][ T253] dst_init+0x84/0x4a0 [ 38.338943][ T253] dst_alloc+0x97/0x150 [ 38.338943][ T253] ip6_dst_alloc+0x23/0x90 [ 38.338943][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 38.338943][ T253] ip6_pol_route+0x56f/0x840 [ 38.338943][ T253] fib6_rule_lookup+0x334/0x630 [ 38.338943][ T253] ip6_route_output_flags+0x259/0x480 [ 38.338943][ T253] inet6_rtm_getroute+0x980/0xf70 [ 38.338943][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 38.338943][ T253] netlink_rcv_skb+0x130/0x360 [ 38.338943][ T253] netlink_unicast+0x449/0x710 [ 38.338943][ T253] netlink_sendmsg+0x723/0xbe0 [ 38.338943][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 38.338943][ T253] ___sys_sendmsg+0xee/0x170 [ 38.338943][ T253] __sys_sendmsg+0xcd/0x170 [ 38.338943][ T253] do_syscall_64+0xc6/0x1e0 [ 38.338943][ T253] [ 38.341683][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 38.341683][ T253] netdev_get_by_index+0x5e/0x80 [ 38.341683][ T253] fib6_nh_init+0x3d8/0x1580 [ 38.341683][ T253] ip6_route_info_create+0xf18/0x17d0 [ 38.341683][ T253] addrconf_f6i_alloc+0x265/0x560 [ 38.341683][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 38.341683][ T253] addrconf_join_anycast+0x1c0/0x220 [ 38.341683][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 38.341683][ T253] addrconf_dad_completed+0x12b/0xe20 [ 38.341683][ T253] addrconf_dad_begin+0x310/0x670 [ 38.341683][ T253] addrconf_dad_work+0x10b/0xab0 [ 38.341683][ T253] process_one_work+0x84d/0x18a0 [ 38.341683][ T253] worker_thread+0x587/0xd30 [ 38.341683][ T253] kthread+0x28a/0x350 [ 38.341683][ T253] ret_from_fork+0x31/0x70 [ 38.341683][ T253] ret_from_fork_asm+0x1a/0x30 [ 38.341683][ T253] [ 38.343955][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 38.343955][ T253] netdev_get_by_index+0x5e/0x80 [ 38.343955][ T253] fib6_nh_init+0x3d8/0x1580 [ 38.343955][ T253] ip6_route_info_create+0xf18/0x17d0 [ 38.343955][ T253] ip6_route_add+0x1c/0x140 [ 38.343955][ T253] addrconf_prefix_route+0x2a6/0x430 [ 38.343955][ T253] inet6_addr_add+0x4f8/0xa40 [ 38.343955][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 38.343955][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 38.343955][ T253] netlink_rcv_skb+0x130/0x360 [ 38.343955][ T253] netlink_unicast+0x449/0x710 [ 38.343955][ T253] netlink_sendmsg+0x723/0xbe0 [ 38.343955][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 38.343955][ T253] ___sys_sendmsg+0xee/0x170 [ 38.343955][ T253] __sys_sendmsg+0xcd/0x170 [ 38.343955][ T253] do_syscall_64+0xc6/0x1e0 [ 38.343955][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 38.343955][ T253] [ 38.346220][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 38.346220][ T253] netdev_get_by_index+0x5e/0x80 [ 38.346220][ T253] fib6_nh_init+0x3d8/0x1580 [ 38.346220][ T253] ip6_route_info_create+0xf18/0x17d0 [ 38.346220][ T253] addrconf_f6i_alloc+0x315/0x560 [ 38.346220][ T253] ipv6_add_addr+0x411/0x2000 [ 38.346220][ T253] inet6_addr_add+0x30e/0xa40 [ 38.346220][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 38.346220][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 38.346220][ T253] netlink_rcv_skb+0x130/0x360 [ 38.346220][ T253] netlink_unicast+0x449/0x710 [ 38.346220][ T253] netlink_sendmsg+0x723/0xbe0 [ 38.346220][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 38.346220][ T253] ___sys_sendmsg+0xee/0x170 [ 38.346220][ T253] __sys_sendmsg+0xcd/0x170 [ 38.346220][ T253] do_syscall_64+0xc6/0x1e0 [ 38.346220][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 38.346220][ T253] [ 38.348495][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 38.348495][ T253] netdev_get_by_index+0x5e/0x80 [ 38.348495][ T253] fib6_nh_init+0x3d8/0x1580 [ 38.348495][ T253] ip6_route_info_create+0xf18/0x17d0 [ 38.348495][ T253] ip6_route_add+0x1c/0x140 [ 38.348495][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 38.348495][ T253] addrconf_add_dev+0xe2/0x170 [ 38.348495][ T253] inet6_addr_add+0x12f/0xa40 [ 38.348495][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 38.348495][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 38.348495][ T253] netlink_rcv_skb+0x130/0x360 [ 38.348495][ T253] netlink_unicast+0x449/0x710 [ 38.348495][ T253] netlink_sendmsg+0x723/0xbe0 [ 38.348495][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 38.348495][ T253] ___sys_sendmsg+0xee/0x170 [ 38.348495][ T253] __sys_sendmsg+0xcd/0x170 [ 38.348495][ T253] do_syscall_64+0xc6/0x1e0 [ 38.348495][ T253] [ 38.350779][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 38.350779][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 38.350779][ T253] ipv6_find_idev+0x102/0x170 [ 38.350779][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 38.350779][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 38.350779][ T253] netlink_rcv_skb+0x130/0x360 [ 38.350779][ T253] netlink_unicast+0x449/0x710 [ 38.350779][ T253] netlink_sendmsg+0x723/0xbe0 [ 38.350779][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 38.350779][ T253] ___sys_sendmsg+0xee/0x170 [ 38.350779][ T253] __sys_sendmsg+0xcd/0x170 [ 38.350779][ T253] do_syscall_64+0xc6/0x1e0 [ 38.350779][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 38.350779][ T253] [ 38.352724][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 38.352724][ T253] neigh_parms_alloc+0x1e5/0x510 [ 38.352724][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 38.352724][ T253] ipv6_find_idev+0x102/0x170 [ 38.352724][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 38.352724][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 38.352724][ T253] netlink_rcv_skb+0x130/0x360 [ 38.352724][ T253] netlink_unicast+0x449/0x710 [ 38.352724][ T253] netlink_sendmsg+0x723/0xbe0 [ 38.352724][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 38.352724][ T253] ___sys_sendmsg+0xee/0x170 [ 38.352724][ T253] __sys_sendmsg+0xcd/0x170 [ 38.352724][ T253] do_syscall_64+0xc6/0x1e0 [ 38.352724][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 38.352724][ T253] [ 48.594309][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 48.594880][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 48.594880][ T253] dst_init+0x84/0x4a0 [ 48.594880][ T253] dst_alloc+0x97/0x150 [ 48.594880][ T253] ip6_dst_alloc+0x23/0x90 [ 48.594880][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 48.594880][ T253] ip6_pol_route+0x56f/0x840 [ 48.594880][ T253] fib6_rule_lookup+0x334/0x630 [ 48.594880][ T253] ip6_route_output_flags+0x259/0x480 [ 48.594880][ T253] inet6_rtm_getroute+0x980/0xf70 [ 48.594880][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 48.594880][ T253] netlink_rcv_skb+0x130/0x360 [ 48.594880][ T253] netlink_unicast+0x449/0x710 [ 48.594880][ T253] netlink_sendmsg+0x723/0xbe0 [ 48.594880][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 48.594880][ T253] ___sys_sendmsg+0xee/0x170 [ 48.594880][ T253] __sys_sendmsg+0xcd/0x170 [ 48.594880][ T253] do_syscall_64+0xc6/0x1e0 [ 48.594880][ T253] [ 48.597115][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 48.597115][ T253] netdev_get_by_index+0x5e/0x80 [ 48.597115][ T253] fib6_nh_init+0x3d8/0x1580 [ 48.597115][ T253] ip6_route_info_create+0xf18/0x17d0 [ 48.597115][ T253] addrconf_f6i_alloc+0x265/0x560 [ 48.597115][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 48.597115][ T253] addrconf_join_anycast+0x1c0/0x220 [ 48.597115][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 48.597115][ T253] addrconf_dad_completed+0x12b/0xe20 [ 48.597115][ T253] addrconf_dad_begin+0x310/0x670 [ 48.597115][ T253] addrconf_dad_work+0x10b/0xab0 [ 48.597115][ T253] process_one_work+0x84d/0x18a0 [ 48.597115][ T253] worker_thread+0x587/0xd30 [ 48.597115][ T253] kthread+0x28a/0x350 [ 48.597115][ T253] ret_from_fork+0x31/0x70 [ 48.597115][ T253] ret_from_fork_asm+0x1a/0x30 [ 48.597115][ T253] [ 48.599335][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 48.599335][ T253] netdev_get_by_index+0x5e/0x80 [ 48.599335][ T253] fib6_nh_init+0x3d8/0x1580 [ 48.599335][ T253] ip6_route_info_create+0xf18/0x17d0 [ 48.599335][ T253] ip6_route_add+0x1c/0x140 [ 48.599335][ T253] addrconf_prefix_route+0x2a6/0x430 [ 48.599335][ T253] inet6_addr_add+0x4f8/0xa40 [ 48.599335][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 48.599335][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 48.599335][ T253] netlink_rcv_skb+0x130/0x360 [ 48.599335][ T253] netlink_unicast+0x449/0x710 [ 48.599335][ T253] netlink_sendmsg+0x723/0xbe0 [ 48.599335][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 48.599335][ T253] ___sys_sendmsg+0xee/0x170 [ 48.599335][ T253] __sys_sendmsg+0xcd/0x170 [ 48.599335][ T253] do_syscall_64+0xc6/0x1e0 [ 48.599335][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 48.599335][ T253] [ 48.601625][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 48.601625][ T253] netdev_get_by_index+0x5e/0x80 [ 48.601625][ T253] fib6_nh_init+0x3d8/0x1580 [ 48.601625][ T253] ip6_route_info_create+0xf18/0x17d0 [ 48.601625][ T253] addrconf_f6i_alloc+0x315/0x560 [ 48.601625][ T253] ipv6_add_addr+0x411/0x2000 [ 48.601625][ T253] inet6_addr_add+0x30e/0xa40 [ 48.601625][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 48.601625][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 48.601625][ T253] netlink_rcv_skb+0x130/0x360 [ 48.601625][ T253] netlink_unicast+0x449/0x710 [ 48.601625][ T253] netlink_sendmsg+0x723/0xbe0 [ 48.601625][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 48.601625][ T253] ___sys_sendmsg+0xee/0x170 [ 48.601625][ T253] __sys_sendmsg+0xcd/0x170 [ 48.601625][ T253] do_syscall_64+0xc6/0x1e0 [ 48.601625][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 48.601625][ T253] [ 48.603916][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 48.603916][ T253] netdev_get_by_index+0x5e/0x80 [ 48.603916][ T253] fib6_nh_init+0x3d8/0x1580 [ 48.603916][ T253] ip6_route_info_create+0xf18/0x17d0 [ 48.603916][ T253] ip6_route_add+0x1c/0x140 [ 48.603916][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 48.603916][ T253] addrconf_add_dev+0xe2/0x170 [ 48.603916][ T253] inet6_addr_add+0x12f/0xa40 [ 48.603916][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 48.603916][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 48.603916][ T253] netlink_rcv_skb+0x130/0x360 [ 48.603916][ T253] netlink_unicast+0x449/0x710 [ 48.603916][ T253] netlink_sendmsg+0x723/0xbe0 [ 48.603916][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 48.603916][ T253] ___sys_sendmsg+0xee/0x170 [ 48.603916][ T253] __sys_sendmsg+0xcd/0x170 [ 48.603916][ T253] do_syscall_64+0xc6/0x1e0 [ 48.603916][ T253] [ 48.606162][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 48.606162][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 48.606162][ T253] ipv6_find_idev+0x102/0x170 [ 48.606162][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 48.606162][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 48.606162][ T253] netlink_rcv_skb+0x130/0x360 [ 48.606162][ T253] netlink_unicast+0x449/0x710 [ 48.606162][ T253] netlink_sendmsg+0x723/0xbe0 [ 48.606162][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 48.606162][ T253] ___sys_sendmsg+0xee/0x170 [ 48.606162][ T253] __sys_sendmsg+0xcd/0x170 [ 48.606162][ T253] do_syscall_64+0xc6/0x1e0 [ 48.606162][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 48.606162][ T253] [ 48.607968][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 48.607968][ T253] neigh_parms_alloc+0x1e5/0x510 [ 48.607968][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 48.607968][ T253] ipv6_find_idev+0x102/0x170 [ 48.607968][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 48.607968][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 48.607968][ T253] netlink_rcv_skb+0x130/0x360 [ 48.607968][ T253] netlink_unicast+0x449/0x710 [ 48.607968][ T253] netlink_sendmsg+0x723/0xbe0 [ 48.607968][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 48.607968][ T253] ___sys_sendmsg+0xee/0x170 [ 48.607968][ T253] __sys_sendmsg+0xcd/0x170 [ 48.607968][ T253] do_syscall_64+0xc6/0x1e0 [ 48.607968][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 48.607968][ T253] [ 58.850258][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 58.850725][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 58.850725][ T253] dst_init+0x84/0x4a0 [ 58.850725][ T253] dst_alloc+0x97/0x150 [ 58.850725][ T253] ip6_dst_alloc+0x23/0x90 [ 58.850725][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 58.850725][ T253] ip6_pol_route+0x56f/0x840 [ 58.850725][ T253] fib6_rule_lookup+0x334/0x630 [ 58.850725][ T253] ip6_route_output_flags+0x259/0x480 [ 58.850725][ T253] inet6_rtm_getroute+0x980/0xf70 [ 58.850725][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 58.850725][ T253] netlink_rcv_skb+0x130/0x360 [ 58.850725][ T253] netlink_unicast+0x449/0x710 [ 58.850725][ T253] netlink_sendmsg+0x723/0xbe0 [ 58.850725][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 58.850725][ T253] ___sys_sendmsg+0xee/0x170 [ 58.850725][ T253] __sys_sendmsg+0xcd/0x170 [ 58.850725][ T253] do_syscall_64+0xc6/0x1e0 [ 58.850725][ T253] [ 58.852991][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 58.852991][ T253] netdev_get_by_index+0x5e/0x80 [ 58.852991][ T253] fib6_nh_init+0x3d8/0x1580 [ 58.852991][ T253] ip6_route_info_create+0xf18/0x17d0 [ 58.852991][ T253] addrconf_f6i_alloc+0x265/0x560 [ 58.852991][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 58.852991][ T253] addrconf_join_anycast+0x1c0/0x220 [ 58.852991][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 58.852991][ T253] addrconf_dad_completed+0x12b/0xe20 [ 58.852991][ T253] addrconf_dad_begin+0x310/0x670 [ 58.852991][ T253] addrconf_dad_work+0x10b/0xab0 [ 58.852991][ T253] process_one_work+0x84d/0x18a0 [ 58.852991][ T253] worker_thread+0x587/0xd30 [ 58.852991][ T253] kthread+0x28a/0x350 [ 58.852991][ T253] ret_from_fork+0x31/0x70 [ 58.852991][ T253] ret_from_fork_asm+0x1a/0x30 [ 58.852991][ T253] [ 58.855251][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 58.855251][ T253] netdev_get_by_index+0x5e/0x80 [ 58.855251][ T253] fib6_nh_init+0x3d8/0x1580 [ 58.855251][ T253] ip6_route_info_create+0xf18/0x17d0 [ 58.855251][ T253] ip6_route_add+0x1c/0x140 [ 58.855251][ T253] addrconf_prefix_route+0x2a6/0x430 [ 58.855251][ T253] inet6_addr_add+0x4f8/0xa40 [ 58.855251][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 58.855251][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 58.855251][ T253] netlink_rcv_skb+0x130/0x360 [ 58.855251][ T253] netlink_unicast+0x449/0x710 [ 58.855251][ T253] netlink_sendmsg+0x723/0xbe0 [ 58.855251][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 58.855251][ T253] ___sys_sendmsg+0xee/0x170 [ 58.855251][ T253] __sys_sendmsg+0xcd/0x170 [ 58.855251][ T253] do_syscall_64+0xc6/0x1e0 [ 58.855251][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 58.855251][ T253] [ 58.857560][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 58.857560][ T253] netdev_get_by_index+0x5e/0x80 [ 58.857560][ T253] fib6_nh_init+0x3d8/0x1580 [ 58.857560][ T253] ip6_route_info_create+0xf18/0x17d0 [ 58.857560][ T253] addrconf_f6i_alloc+0x315/0x560 [ 58.857560][ T253] ipv6_add_addr+0x411/0x2000 [ 58.857560][ T253] inet6_addr_add+0x30e/0xa40 [ 58.857560][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 58.857560][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 58.857560][ T253] netlink_rcv_skb+0x130/0x360 [ 58.857560][ T253] netlink_unicast+0x449/0x710 [ 58.857560][ T253] netlink_sendmsg+0x723/0xbe0 [ 58.857560][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 58.857560][ T253] ___sys_sendmsg+0xee/0x170 [ 58.857560][ T253] __sys_sendmsg+0xcd/0x170 [ 58.857560][ T253] do_syscall_64+0xc6/0x1e0 [ 58.857560][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 58.857560][ T253] [ 58.859904][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 58.859904][ T253] netdev_get_by_index+0x5e/0x80 [ 58.859904][ T253] fib6_nh_init+0x3d8/0x1580 [ 58.859904][ T253] ip6_route_info_create+0xf18/0x17d0 [ 58.859904][ T253] ip6_route_add+0x1c/0x140 [ 58.859904][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 58.859904][ T253] addrconf_add_dev+0xe2/0x170 [ 58.859904][ T253] inet6_addr_add+0x12f/0xa40 [ 58.859904][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 58.859904][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 58.859904][ T253] netlink_rcv_skb+0x130/0x360 [ 58.859904][ T253] netlink_unicast+0x449/0x710 [ 58.859904][ T253] netlink_sendmsg+0x723/0xbe0 [ 58.859904][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 58.859904][ T253] ___sys_sendmsg+0xee/0x170 [ 58.859904][ T253] __sys_sendmsg+0xcd/0x170 [ 58.859904][ T253] do_syscall_64+0xc6/0x1e0 [ 58.859904][ T253] [ 58.862174][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 58.862174][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 58.862174][ T253] ipv6_find_idev+0x102/0x170 [ 58.862174][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 58.862174][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 58.862174][ T253] netlink_rcv_skb+0x130/0x360 [ 58.862174][ T253] netlink_unicast+0x449/0x710 [ 58.862174][ T253] netlink_sendmsg+0x723/0xbe0 [ 58.862174][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 58.862174][ T253] ___sys_sendmsg+0xee/0x170 [ 58.862174][ T253] __sys_sendmsg+0xcd/0x170 [ 58.862174][ T253] do_syscall_64+0xc6/0x1e0 [ 58.862174][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 58.862174][ T253] [ 58.863941][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 58.863941][ T253] neigh_parms_alloc+0x1e5/0x510 [ 58.863941][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 58.863941][ T253] ipv6_find_idev+0x102/0x170 [ 58.863941][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 58.863941][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 58.863941][ T253] netlink_rcv_skb+0x130/0x360 [ 58.863941][ T253] netlink_unicast+0x449/0x710 [ 58.863941][ T253] netlink_sendmsg+0x723/0xbe0 [ 58.863941][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 58.863941][ T253] ___sys_sendmsg+0xee/0x170 [ 58.863941][ T253] __sys_sendmsg+0xcd/0x170 [ 58.863941][ T253] do_syscall_64+0xc6/0x1e0 [ 58.863941][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 58.863941][ T253] [ 68.994245][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 68.994731][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 68.994731][ T253] dst_init+0x84/0x4a0 [ 68.994731][ T253] dst_alloc+0x97/0x150 [ 68.994731][ T253] ip6_dst_alloc+0x23/0x90 [ 68.994731][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 68.994731][ T253] ip6_pol_route+0x56f/0x840 [ 68.994731][ T253] fib6_rule_lookup+0x334/0x630 [ 68.994731][ T253] ip6_route_output_flags+0x259/0x480 [ 68.994731][ T253] inet6_rtm_getroute+0x980/0xf70 [ 68.994731][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 68.994731][ T253] netlink_rcv_skb+0x130/0x360 [ 68.994731][ T253] netlink_unicast+0x449/0x710 [ 68.994731][ T253] netlink_sendmsg+0x723/0xbe0 [ 68.994731][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 68.994731][ T253] ___sys_sendmsg+0xee/0x170 [ 68.994731][ T253] __sys_sendmsg+0xcd/0x170 [ 68.994731][ T253] do_syscall_64+0xc6/0x1e0 [ 68.994731][ T253] [ 68.997032][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 68.997032][ T253] netdev_get_by_index+0x5e/0x80 [ 68.997032][ T253] fib6_nh_init+0x3d8/0x1580 [ 68.997032][ T253] ip6_route_info_create+0xf18/0x17d0 [ 68.997032][ T253] addrconf_f6i_alloc+0x265/0x560 [ 68.997032][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 68.997032][ T253] addrconf_join_anycast+0x1c0/0x220 [ 68.997032][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 68.997032][ T253] addrconf_dad_completed+0x12b/0xe20 [ 68.997032][ T253] addrconf_dad_begin+0x310/0x670 [ 68.997032][ T253] addrconf_dad_work+0x10b/0xab0 [ 68.997032][ T253] process_one_work+0x84d/0x18a0 [ 68.997032][ T253] worker_thread+0x587/0xd30 [ 68.997032][ T253] kthread+0x28a/0x350 [ 68.997032][ T253] ret_from_fork+0x31/0x70 [ 68.997032][ T253] ret_from_fork_asm+0x1a/0x30 [ 68.997032][ T253] [ 68.999235][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 68.999235][ T253] netdev_get_by_index+0x5e/0x80 [ 68.999235][ T253] fib6_nh_init+0x3d8/0x1580 [ 68.999235][ T253] ip6_route_info_create+0xf18/0x17d0 [ 68.999235][ T253] ip6_route_add+0x1c/0x140 [ 68.999235][ T253] addrconf_prefix_route+0x2a6/0x430 [ 68.999235][ T253] inet6_addr_add+0x4f8/0xa40 [ 68.999235][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 68.999235][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 68.999235][ T253] netlink_rcv_skb+0x130/0x360 [ 68.999235][ T253] netlink_unicast+0x449/0x710 [ 68.999235][ T253] netlink_sendmsg+0x723/0xbe0 [ 68.999235][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 68.999235][ T253] ___sys_sendmsg+0xee/0x170 [ 68.999235][ T253] __sys_sendmsg+0xcd/0x170 [ 68.999235][ T253] do_syscall_64+0xc6/0x1e0 [ 68.999235][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 68.999235][ T253] [ 69.001556][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 69.001556][ T253] netdev_get_by_index+0x5e/0x80 [ 69.001556][ T253] fib6_nh_init+0x3d8/0x1580 [ 69.001556][ T253] ip6_route_info_create+0xf18/0x17d0 [ 69.001556][ T253] addrconf_f6i_alloc+0x315/0x560 [ 69.001556][ T253] ipv6_add_addr+0x411/0x2000 [ 69.001556][ T253] inet6_addr_add+0x30e/0xa40 [ 69.001556][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 69.001556][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 69.001556][ T253] netlink_rcv_skb+0x130/0x360 [ 69.001556][ T253] netlink_unicast+0x449/0x710 [ 69.001556][ T253] netlink_sendmsg+0x723/0xbe0 [ 69.001556][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 69.001556][ T253] ___sys_sendmsg+0xee/0x170 [ 69.001556][ T253] __sys_sendmsg+0xcd/0x170 [ 69.001556][ T253] do_syscall_64+0xc6/0x1e0 [ 69.001556][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 69.001556][ T253] [ 69.003883][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 69.003883][ T253] netdev_get_by_index+0x5e/0x80 [ 69.003883][ T253] fib6_nh_init+0x3d8/0x1580 [ 69.003883][ T253] ip6_route_info_create+0xf18/0x17d0 [ 69.003883][ T253] ip6_route_add+0x1c/0x140 [ 69.003883][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 69.003883][ T253] addrconf_add_dev+0xe2/0x170 [ 69.003883][ T253] inet6_addr_add+0x12f/0xa40 [ 69.003883][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 69.003883][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 69.003883][ T253] netlink_rcv_skb+0x130/0x360 [ 69.003883][ T253] netlink_unicast+0x449/0x710 [ 69.003883][ T253] netlink_sendmsg+0x723/0xbe0 [ 69.003883][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 69.003883][ T253] ___sys_sendmsg+0xee/0x170 [ 69.003883][ T253] __sys_sendmsg+0xcd/0x170 [ 69.003883][ T253] do_syscall_64+0xc6/0x1e0 [ 69.003883][ T253] [ 69.006150][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 69.006150][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 69.006150][ T253] ipv6_find_idev+0x102/0x170 [ 69.006150][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 69.006150][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 69.006150][ T253] netlink_rcv_skb+0x130/0x360 [ 69.006150][ T253] netlink_unicast+0x449/0x710 [ 69.006150][ T253] netlink_sendmsg+0x723/0xbe0 [ 69.006150][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 69.006150][ T253] ___sys_sendmsg+0xee/0x170 [ 69.006150][ T253] __sys_sendmsg+0xcd/0x170 [ 69.006150][ T253] do_syscall_64+0xc6/0x1e0 [ 69.006150][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 69.006150][ T253] [ 69.007939][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 69.007939][ T253] neigh_parms_alloc+0x1e5/0x510 [ 69.007939][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 69.007939][ T253] ipv6_find_idev+0x102/0x170 [ 69.007939][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 69.007939][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 69.007939][ T253] netlink_rcv_skb+0x130/0x360 [ 69.007939][ T253] netlink_unicast+0x449/0x710 [ 69.007939][ T253] netlink_sendmsg+0x723/0xbe0 [ 69.007939][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 69.007939][ T253] ___sys_sendmsg+0xee/0x170 [ 69.007939][ T253] __sys_sendmsg+0xcd/0x170 [ 69.007939][ T253] do_syscall_64+0xc6/0x1e0 [ 69.007939][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 69.007939][ T253] [ 79.106387][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 79.107170][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 79.107170][ T253] dst_init+0x84/0x4a0 [ 79.107170][ T253] dst_alloc+0x97/0x150 [ 79.107170][ T253] ip6_dst_alloc+0x23/0x90 [ 79.107170][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 79.107170][ T253] ip6_pol_route+0x56f/0x840 [ 79.107170][ T253] fib6_rule_lookup+0x334/0x630 [ 79.107170][ T253] ip6_route_output_flags+0x259/0x480 [ 79.107170][ T253] inet6_rtm_getroute+0x980/0xf70 [ 79.107170][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 79.107170][ T253] netlink_rcv_skb+0x130/0x360 [ 79.107170][ T253] netlink_unicast+0x449/0x710 [ 79.107170][ T253] netlink_sendmsg+0x723/0xbe0 [ 79.107170][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 79.107170][ T253] ___sys_sendmsg+0xee/0x170 [ 79.107170][ T253] __sys_sendmsg+0xcd/0x170 [ 79.107170][ T253] do_syscall_64+0xc6/0x1e0 [ 79.107170][ T253] [ 79.111576][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 79.111576][ T253] netdev_get_by_index+0x5e/0x80 [ 79.111576][ T253] fib6_nh_init+0x3d8/0x1580 [ 79.111576][ T253] ip6_route_info_create+0xf18/0x17d0 [ 79.111576][ T253] addrconf_f6i_alloc+0x265/0x560 [ 79.111576][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 79.111576][ T253] addrconf_join_anycast+0x1c0/0x220 [ 79.111576][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 79.111576][ T253] addrconf_dad_completed+0x12b/0xe20 [ 79.111576][ T253] addrconf_dad_begin+0x310/0x670 [ 79.111576][ T253] addrconf_dad_work+0x10b/0xab0 [ 79.111576][ T253] process_one_work+0x84d/0x18a0 [ 79.111576][ T253] worker_thread+0x587/0xd30 [ 79.111576][ T253] kthread+0x28a/0x350 [ 79.111576][ T253] ret_from_fork+0x31/0x70 [ 79.111576][ T253] ret_from_fork_asm+0x1a/0x30 [ 79.111576][ T253] [ 79.115925][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 79.115925][ T253] netdev_get_by_index+0x5e/0x80 [ 79.115925][ T253] fib6_nh_init+0x3d8/0x1580 [ 79.115925][ T253] ip6_route_info_create+0xf18/0x17d0 [ 79.115925][ T253] ip6_route_add+0x1c/0x140 [ 79.115925][ T253] addrconf_prefix_route+0x2a6/0x430 [ 79.115925][ T253] inet6_addr_add+0x4f8/0xa40 [ 79.115925][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 79.115925][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 79.115925][ T253] netlink_rcv_skb+0x130/0x360 [ 79.115925][ T253] netlink_unicast+0x449/0x710 [ 79.115925][ T253] netlink_sendmsg+0x723/0xbe0 [ 79.115925][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 79.115925][ T253] ___sys_sendmsg+0xee/0x170 [ 79.115925][ T253] __sys_sendmsg+0xcd/0x170 [ 79.115925][ T253] do_syscall_64+0xc6/0x1e0 [ 79.115925][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 79.115925][ T253] [ 79.140789][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 79.140789][ T253] netdev_get_by_index+0x5e/0x80 [ 79.140789][ T253] fib6_nh_init+0x3d8/0x1580 [ 79.140789][ T253] ip6_route_info_create+0xf18/0x17d0 [ 79.140789][ T253] addrconf_f6i_alloc+0x315/0x560 [ 79.140789][ T253] ipv6_add_addr+0x411/0x2000 [ 79.140789][ T253] inet6_addr_add+0x30e/0xa40 [ 79.140789][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 79.140789][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 79.140789][ T253] netlink_rcv_skb+0x130/0x360 [ 79.140789][ T253] netlink_unicast+0x449/0x710 [ 79.140789][ T253] netlink_sendmsg+0x723/0xbe0 [ 79.140789][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 79.140789][ T253] ___sys_sendmsg+0xee/0x170 [ 79.140789][ T253] __sys_sendmsg+0xcd/0x170 [ 79.140789][ T253] do_syscall_64+0xc6/0x1e0 [ 79.140789][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 79.140789][ T253] [ 79.147053][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 79.147053][ T253] netdev_get_by_index+0x5e/0x80 [ 79.147053][ T253] fib6_nh_init+0x3d8/0x1580 [ 79.147053][ T253] ip6_route_info_create+0xf18/0x17d0 [ 79.147053][ T253] ip6_route_add+0x1c/0x140 [ 79.147053][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 79.147053][ T253] addrconf_add_dev+0xe2/0x170 [ 79.147053][ T253] inet6_addr_add+0x12f/0xa40 [ 79.147053][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 79.147053][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 79.147053][ T253] netlink_rcv_skb+0x130/0x360 [ 79.147053][ T253] netlink_unicast+0x449/0x710 [ 79.147053][ T253] netlink_sendmsg+0x723/0xbe0 [ 79.147053][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 79.147053][ T253] ___sys_sendmsg+0xee/0x170 [ 79.147053][ T253] __sys_sendmsg+0xcd/0x170 [ 79.147053][ T253] do_syscall_64+0xc6/0x1e0 [ 79.147053][ T253] [ 79.153866][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 79.153866][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 79.153866][ T253] ipv6_find_idev+0x102/0x170 [ 79.153866][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 79.153866][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 79.153866][ T253] netlink_rcv_skb+0x130/0x360 [ 79.153866][ T253] netlink_unicast+0x449/0x710 [ 79.153866][ T253] netlink_sendmsg+0x723/0xbe0 [ 79.153866][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 79.153866][ T253] ___sys_sendmsg+0xee/0x170 [ 79.153866][ T253] __sys_sendmsg+0xcd/0x170 [ 79.153866][ T253] do_syscall_64+0xc6/0x1e0 [ 79.153866][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 79.153866][ T253] [ 79.159252][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 79.159252][ T253] neigh_parms_alloc+0x1e5/0x510 [ 79.159252][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 79.159252][ T253] ipv6_find_idev+0x102/0x170 [ 79.159252][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 79.159252][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 79.159252][ T253] netlink_rcv_skb+0x130/0x360 [ 79.159252][ T253] netlink_unicast+0x449/0x710 [ 79.159252][ T253] netlink_sendmsg+0x723/0xbe0 [ 79.159252][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 79.159252][ T253] ___sys_sendmsg+0xee/0x170 [ 79.159252][ T253] __sys_sendmsg+0xcd/0x170 [ 79.159252][ T253] do_syscall_64+0xc6/0x1e0 [ 79.159252][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 79.159252][ T253] [ 89.250420][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 89.260336][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 89.260336][ T253] dst_init+0x84/0x4a0 [ 89.260336][ T253] dst_alloc+0x97/0x150 [ 89.260336][ T253] ip6_dst_alloc+0x23/0x90 [ 89.260336][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 89.260336][ T253] ip6_pol_route+0x56f/0x840 [ 89.260336][ T253] fib6_rule_lookup+0x334/0x630 [ 89.260336][ T253] ip6_route_output_flags+0x259/0x480 [ 89.260336][ T253] inet6_rtm_getroute+0x980/0xf70 [ 89.260336][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 89.260336][ T253] netlink_rcv_skb+0x130/0x360 [ 89.260336][ T253] netlink_unicast+0x449/0x710 [ 89.260336][ T253] netlink_sendmsg+0x723/0xbe0 [ 89.260336][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 89.260336][ T253] ___sys_sendmsg+0xee/0x170 [ 89.260336][ T253] __sys_sendmsg+0xcd/0x170 [ 89.260336][ T253] do_syscall_64+0xc6/0x1e0 [ 89.260336][ T253] [ 89.280890][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 89.280890][ T253] netdev_get_by_index+0x5e/0x80 [ 89.280890][ T253] fib6_nh_init+0x3d8/0x1580 [ 89.280890][ T253] ip6_route_info_create+0xf18/0x17d0 [ 89.280890][ T253] addrconf_f6i_alloc+0x265/0x560 [ 89.280890][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 89.280890][ T253] addrconf_join_anycast+0x1c0/0x220 [ 89.280890][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 89.280890][ T253] addrconf_dad_completed+0x12b/0xe20 [ 89.280890][ T253] addrconf_dad_begin+0x310/0x670 [ 89.280890][ T253] addrconf_dad_work+0x10b/0xab0 [ 89.280890][ T253] process_one_work+0x84d/0x18a0 [ 89.280890][ T253] worker_thread+0x587/0xd30 [ 89.280890][ T253] kthread+0x28a/0x350 [ 89.280890][ T253] ret_from_fork+0x31/0x70 [ 89.280890][ T253] ret_from_fork_asm+0x1a/0x30 [ 89.280890][ T253] [ 89.287516][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 89.287516][ T253] netdev_get_by_index+0x5e/0x80 [ 89.287516][ T253] fib6_nh_init+0x3d8/0x1580 [ 89.287516][ T253] ip6_route_info_create+0xf18/0x17d0 [ 89.287516][ T253] ip6_route_add+0x1c/0x140 [ 89.287516][ T253] addrconf_prefix_route+0x2a6/0x430 [ 89.287516][ T253] inet6_addr_add+0x4f8/0xa40 [ 89.287516][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 89.287516][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 89.287516][ T253] netlink_rcv_skb+0x130/0x360 [ 89.287516][ T253] netlink_unicast+0x449/0x710 [ 89.287516][ T253] netlink_sendmsg+0x723/0xbe0 [ 89.287516][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 89.287516][ T253] ___sys_sendmsg+0xee/0x170 [ 89.287516][ T253] __sys_sendmsg+0xcd/0x170 [ 89.287516][ T253] do_syscall_64+0xc6/0x1e0 [ 89.287516][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 89.287516][ T253] [ 89.294555][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 89.294555][ T253] netdev_get_by_index+0x5e/0x80 [ 89.294555][ T253] fib6_nh_init+0x3d8/0x1580 [ 89.294555][ T253] ip6_route_info_create+0xf18/0x17d0 [ 89.294555][ T253] addrconf_f6i_alloc+0x315/0x560 [ 89.294555][ T253] ipv6_add_addr+0x411/0x2000 [ 89.294555][ T253] inet6_addr_add+0x30e/0xa40 [ 89.294555][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 89.294555][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 89.294555][ T253] netlink_rcv_skb+0x130/0x360 [ 89.294555][ T253] netlink_unicast+0x449/0x710 [ 89.294555][ T253] netlink_sendmsg+0x723/0xbe0 [ 89.294555][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 89.294555][ T253] ___sys_sendmsg+0xee/0x170 [ 89.294555][ T253] __sys_sendmsg+0xcd/0x170 [ 89.294555][ T253] do_syscall_64+0xc6/0x1e0 [ 89.294555][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 89.294555][ T253] [ 89.301544][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 89.301544][ T253] netdev_get_by_index+0x5e/0x80 [ 89.301544][ T253] fib6_nh_init+0x3d8/0x1580 [ 89.301544][ T253] ip6_route_info_create+0xf18/0x17d0 [ 89.301544][ T253] ip6_route_add+0x1c/0x140 [ 89.301544][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 89.301544][ T253] addrconf_add_dev+0xe2/0x170 [ 89.301544][ T253] inet6_addr_add+0x12f/0xa40 [ 89.301544][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 89.301544][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 89.301544][ T253] netlink_rcv_skb+0x130/0x360 [ 89.301544][ T253] netlink_unicast+0x449/0x710 [ 89.301544][ T253] netlink_sendmsg+0x723/0xbe0 [ 89.301544][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 89.301544][ T253] ___sys_sendmsg+0xee/0x170 [ 89.301544][ T253] __sys_sendmsg+0xcd/0x170 [ 89.301544][ T253] do_syscall_64+0xc6/0x1e0 [ 89.301544][ T253] [ 89.323727][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 89.323727][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 89.323727][ T253] ipv6_find_idev+0x102/0x170 [ 89.323727][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 89.323727][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 89.323727][ T253] netlink_rcv_skb+0x130/0x360 [ 89.323727][ T253] netlink_unicast+0x449/0x710 [ 89.323727][ T253] netlink_sendmsg+0x723/0xbe0 [ 89.323727][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 89.323727][ T253] ___sys_sendmsg+0xee/0x170 [ 89.323727][ T253] __sys_sendmsg+0xcd/0x170 [ 89.323727][ T253] do_syscall_64+0xc6/0x1e0 [ 89.323727][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 89.323727][ T253] [ 89.329010][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 89.329010][ T253] neigh_parms_alloc+0x1e5/0x510 [ 89.329010][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 89.329010][ T253] ipv6_find_idev+0x102/0x170 [ 89.329010][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 89.329010][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 89.329010][ T253] netlink_rcv_skb+0x130/0x360 [ 89.329010][ T253] netlink_unicast+0x449/0x710 [ 89.329010][ T253] netlink_sendmsg+0x723/0xbe0 [ 89.329010][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 89.329010][ T253] ___sys_sendmsg+0xee/0x170 [ 89.329010][ T253] __sys_sendmsg+0xcd/0x170 [ 89.329010][ T253] do_syscall_64+0xc6/0x1e0 [ 89.329010][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 89.329010][ T253] [ 99.570375][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 99.599080][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 99.599080][ T253] dst_init+0x84/0x4a0 [ 99.599080][ T253] dst_alloc+0x97/0x150 [ 99.599080][ T253] ip6_dst_alloc+0x23/0x90 [ 99.599080][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 99.599080][ T253] ip6_pol_route+0x56f/0x840 [ 99.599080][ T253] fib6_rule_lookup+0x334/0x630 [ 99.599080][ T253] ip6_route_output_flags+0x259/0x480 [ 99.599080][ T253] inet6_rtm_getroute+0x980/0xf70 [ 99.599080][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 99.599080][ T253] netlink_rcv_skb+0x130/0x360 [ 99.599080][ T253] netlink_unicast+0x449/0x710 [ 99.599080][ T253] netlink_sendmsg+0x723/0xbe0 [ 99.599080][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 99.599080][ T253] ___sys_sendmsg+0xee/0x170 [ 99.599080][ T253] __sys_sendmsg+0xcd/0x170 [ 99.599080][ T253] do_syscall_64+0xc6/0x1e0 [ 99.599080][ T253] [ 99.603197][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 99.603197][ T253] netdev_get_by_index+0x5e/0x80 [ 99.603197][ T253] fib6_nh_init+0x3d8/0x1580 [ 99.603197][ T253] ip6_route_info_create+0xf18/0x17d0 [ 99.603197][ T253] addrconf_f6i_alloc+0x265/0x560 [ 99.603197][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 99.603197][ T253] addrconf_join_anycast+0x1c0/0x220 [ 99.603197][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 99.603197][ T253] addrconf_dad_completed+0x12b/0xe20 [ 99.603197][ T253] addrconf_dad_begin+0x310/0x670 [ 99.603197][ T253] addrconf_dad_work+0x10b/0xab0 [ 99.603197][ T253] process_one_work+0x84d/0x18a0 [ 99.603197][ T253] worker_thread+0x587/0xd30 [ 99.603197][ T253] kthread+0x28a/0x350 [ 99.603197][ T253] ret_from_fork+0x31/0x70 [ 99.603197][ T253] ret_from_fork_asm+0x1a/0x30 [ 99.603197][ T253] [ 99.607060][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 99.607060][ T253] netdev_get_by_index+0x5e/0x80 [ 99.607060][ T253] fib6_nh_init+0x3d8/0x1580 [ 99.607060][ T253] ip6_route_info_create+0xf18/0x17d0 [ 99.607060][ T253] ip6_route_add+0x1c/0x140 [ 99.607060][ T253] addrconf_prefix_route+0x2a6/0x430 [ 99.607060][ T253] inet6_addr_add+0x4f8/0xa40 [ 99.607060][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 99.607060][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 99.607060][ T253] netlink_rcv_skb+0x130/0x360 [ 99.607060][ T253] netlink_unicast+0x449/0x710 [ 99.607060][ T253] netlink_sendmsg+0x723/0xbe0 [ 99.607060][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 99.607060][ T253] ___sys_sendmsg+0xee/0x170 [ 99.607060][ T253] __sys_sendmsg+0xcd/0x170 [ 99.607060][ T253] do_syscall_64+0xc6/0x1e0 [ 99.607060][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 99.607060][ T253] [ 99.611107][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 99.611107][ T253] netdev_get_by_index+0x5e/0x80 [ 99.611107][ T253] fib6_nh_init+0x3d8/0x1580 [ 99.611107][ T253] ip6_route_info_create+0xf18/0x17d0 [ 99.611107][ T253] addrconf_f6i_alloc+0x315/0x560 [ 99.611107][ T253] ipv6_add_addr+0x411/0x2000 [ 99.611107][ T253] inet6_addr_add+0x30e/0xa40 [ 99.611107][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 99.611107][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 99.611107][ T253] netlink_rcv_skb+0x130/0x360 [ 99.611107][ T253] netlink_unicast+0x449/0x710 [ 99.611107][ T253] netlink_sendmsg+0x723/0xbe0 [ 99.611107][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 99.611107][ T253] ___sys_sendmsg+0xee/0x170 [ 99.611107][ T253] __sys_sendmsg+0xcd/0x170 [ 99.611107][ T253] do_syscall_64+0xc6/0x1e0 [ 99.611107][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 99.611107][ T253] [ 99.615124][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 99.615124][ T253] netdev_get_by_index+0x5e/0x80 [ 99.615124][ T253] fib6_nh_init+0x3d8/0x1580 [ 99.615124][ T253] ip6_route_info_create+0xf18/0x17d0 [ 99.615124][ T253] ip6_route_add+0x1c/0x140 [ 99.615124][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 99.615124][ T253] addrconf_add_dev+0xe2/0x170 [ 99.615124][ T253] inet6_addr_add+0x12f/0xa40 [ 99.615124][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 99.615124][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 99.615124][ T253] netlink_rcv_skb+0x130/0x360 [ 99.615124][ T253] netlink_unicast+0x449/0x710 [ 99.615124][ T253] netlink_sendmsg+0x723/0xbe0 [ 99.615124][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 99.615124][ T253] ___sys_sendmsg+0xee/0x170 [ 99.615124][ T253] __sys_sendmsg+0xcd/0x170 [ 99.615124][ T253] do_syscall_64+0xc6/0x1e0 [ 99.615124][ T253] [ 99.639359][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 99.639359][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 99.639359][ T253] ipv6_find_idev+0x102/0x170 [ 99.639359][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 99.639359][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 99.639359][ T253] netlink_rcv_skb+0x130/0x360 [ 99.639359][ T253] netlink_unicast+0x449/0x710 [ 99.639359][ T253] netlink_sendmsg+0x723/0xbe0 [ 99.639359][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 99.639359][ T253] ___sys_sendmsg+0xee/0x170 [ 99.639359][ T253] __sys_sendmsg+0xcd/0x170 [ 99.639359][ T253] do_syscall_64+0xc6/0x1e0 [ 99.639359][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 99.639359][ T253] [ 99.642551][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 99.642551][ T253] neigh_parms_alloc+0x1e5/0x510 [ 99.642551][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 99.642551][ T253] ipv6_find_idev+0x102/0x170 [ 99.642551][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 99.642551][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 99.642551][ T253] netlink_rcv_skb+0x130/0x360 [ 99.642551][ T253] netlink_unicast+0x449/0x710 [ 99.642551][ T253] netlink_sendmsg+0x723/0xbe0 [ 99.642551][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 99.642551][ T253] ___sys_sendmsg+0xee/0x170 [ 99.642551][ T253] __sys_sendmsg+0xcd/0x170 [ 99.642551][ T253] do_syscall_64+0xc6/0x1e0 [ 99.642551][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 99.642551][ T253] [ 109.898369][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 109.913739][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 109.913739][ T253] dst_init+0x84/0x4a0 [ 109.913739][ T253] dst_alloc+0x97/0x150 [ 109.913739][ T253] ip6_dst_alloc+0x23/0x90 [ 109.913739][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 109.913739][ T253] ip6_pol_route+0x56f/0x840 [ 109.913739][ T253] fib6_rule_lookup+0x334/0x630 [ 109.913739][ T253] ip6_route_output_flags+0x259/0x480 [ 109.913739][ T253] inet6_rtm_getroute+0x980/0xf70 [ 109.913739][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 109.913739][ T253] netlink_rcv_skb+0x130/0x360 [ 109.913739][ T253] netlink_unicast+0x449/0x710 [ 109.913739][ T253] netlink_sendmsg+0x723/0xbe0 [ 109.913739][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 109.913739][ T253] ___sys_sendmsg+0xee/0x170 [ 109.913739][ T253] __sys_sendmsg+0xcd/0x170 [ 109.913739][ T253] do_syscall_64+0xc6/0x1e0 [ 109.913739][ T253] [ 109.918801][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 109.918801][ T253] netdev_get_by_index+0x5e/0x80 [ 109.918801][ T253] fib6_nh_init+0x3d8/0x1580 [ 109.918801][ T253] ip6_route_info_create+0xf18/0x17d0 [ 109.918801][ T253] addrconf_f6i_alloc+0x265/0x560 [ 109.918801][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 109.918801][ T253] addrconf_join_anycast+0x1c0/0x220 [ 109.918801][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 109.918801][ T253] addrconf_dad_completed+0x12b/0xe20 [ 109.918801][ T253] addrconf_dad_begin+0x310/0x670 [ 109.918801][ T253] addrconf_dad_work+0x10b/0xab0 [ 109.918801][ T253] process_one_work+0x84d/0x18a0 [ 109.918801][ T253] worker_thread+0x587/0xd30 [ 109.918801][ T253] kthread+0x28a/0x350 [ 109.918801][ T253] ret_from_fork+0x31/0x70 [ 109.918801][ T253] ret_from_fork_asm+0x1a/0x30 [ 109.918801][ T253] [ 109.923812][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 109.923812][ T253] netdev_get_by_index+0x5e/0x80 [ 109.923812][ T253] fib6_nh_init+0x3d8/0x1580 [ 109.923812][ T253] ip6_route_info_create+0xf18/0x17d0 [ 109.923812][ T253] ip6_route_add+0x1c/0x140 [ 109.923812][ T253] addrconf_prefix_route+0x2a6/0x430 [ 109.923812][ T253] inet6_addr_add+0x4f8/0xa40 [ 109.923812][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 109.923812][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 109.923812][ T253] netlink_rcv_skb+0x130/0x360 [ 109.923812][ T253] netlink_unicast+0x449/0x710 [ 109.923812][ T253] netlink_sendmsg+0x723/0xbe0 [ 109.923812][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 109.923812][ T253] ___sys_sendmsg+0xee/0x170 [ 109.923812][ T253] __sys_sendmsg+0xcd/0x170 [ 109.923812][ T253] do_syscall_64+0xc6/0x1e0 [ 109.923812][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 109.923812][ T253] [ 109.929414][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 109.929414][ T253] netdev_get_by_index+0x5e/0x80 [ 109.929414][ T253] fib6_nh_init+0x3d8/0x1580 [ 109.929414][ T253] ip6_route_info_create+0xf18/0x17d0 [ 109.929414][ T253] addrconf_f6i_alloc+0x315/0x560 [ 109.929414][ T253] ipv6_add_addr+0x411/0x2000 [ 109.929414][ T253] inet6_addr_add+0x30e/0xa40 [ 109.929414][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 109.929414][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 109.929414][ T253] netlink_rcv_skb+0x130/0x360 [ 109.929414][ T253] netlink_unicast+0x449/0x710 [ 109.929414][ T253] netlink_sendmsg+0x723/0xbe0 [ 109.929414][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 109.929414][ T253] ___sys_sendmsg+0xee/0x170 [ 109.929414][ T253] __sys_sendmsg+0xcd/0x170 [ 109.929414][ T253] do_syscall_64+0xc6/0x1e0 [ 109.929414][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 109.929414][ T253] [ 109.935291][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 109.935291][ T253] netdev_get_by_index+0x5e/0x80 [ 109.935291][ T253] fib6_nh_init+0x3d8/0x1580 [ 109.935291][ T253] ip6_route_info_create+0xf18/0x17d0 [ 109.935291][ T253] ip6_route_add+0x1c/0x140 [ 109.935291][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 109.935291][ T253] addrconf_add_dev+0xe2/0x170 [ 109.935291][ T253] inet6_addr_add+0x12f/0xa40 [ 109.935291][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 109.935291][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 109.935291][ T253] netlink_rcv_skb+0x130/0x360 [ 109.935291][ T253] netlink_unicast+0x449/0x710 [ 109.935291][ T253] netlink_sendmsg+0x723/0xbe0 [ 109.935291][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 109.935291][ T253] ___sys_sendmsg+0xee/0x170 [ 109.935291][ T253] __sys_sendmsg+0xcd/0x170 [ 109.935291][ T253] do_syscall_64+0xc6/0x1e0 [ 109.935291][ T253] [ 109.940058][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 109.940058][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 109.940058][ T253] ipv6_find_idev+0x102/0x170 [ 109.940058][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 109.940058][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 109.940058][ T253] netlink_rcv_skb+0x130/0x360 [ 109.940058][ T253] netlink_unicast+0x449/0x710 [ 109.940058][ T253] netlink_sendmsg+0x723/0xbe0 [ 109.940058][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 109.940058][ T253] ___sys_sendmsg+0xee/0x170 [ 109.940058][ T253] __sys_sendmsg+0xcd/0x170 [ 109.940058][ T253] do_syscall_64+0xc6/0x1e0 [ 109.940058][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 109.940058][ T253] [ 109.943340][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 109.943340][ T253] neigh_parms_alloc+0x1e5/0x510 [ 109.943340][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 109.943340][ T253] ipv6_find_idev+0x102/0x170 [ 109.943340][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 109.943340][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 109.943340][ T253] netlink_rcv_skb+0x130/0x360 [ 109.943340][ T253] netlink_unicast+0x449/0x710 [ 109.943340][ T253] netlink_sendmsg+0x723/0xbe0 [ 109.943340][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 109.943340][ T253] ___sys_sendmsg+0xee/0x170 [ 109.943340][ T253] __sys_sendmsg+0xcd/0x170 [ 109.943340][ T253] do_syscall_64+0xc6/0x1e0 [ 109.943340][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 109.943340][ T253] [ 120.186446][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 120.186934][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 120.186934][ T253] dst_init+0x84/0x4a0 [ 120.186934][ T253] dst_alloc+0x97/0x150 [ 120.186934][ T253] ip6_dst_alloc+0x23/0x90 [ 120.186934][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 120.186934][ T253] ip6_pol_route+0x56f/0x840 [ 120.186934][ T253] fib6_rule_lookup+0x334/0x630 [ 120.186934][ T253] ip6_route_output_flags+0x259/0x480 [ 120.186934][ T253] inet6_rtm_getroute+0x980/0xf70 [ 120.186934][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 120.186934][ T253] netlink_rcv_skb+0x130/0x360 [ 120.186934][ T253] netlink_unicast+0x449/0x710 [ 120.186934][ T253] netlink_sendmsg+0x723/0xbe0 [ 120.186934][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 120.186934][ T253] ___sys_sendmsg+0xee/0x170 [ 120.186934][ T253] __sys_sendmsg+0xcd/0x170 [ 120.186934][ T253] do_syscall_64+0xc6/0x1e0 [ 120.186934][ T253] [ 120.189179][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 120.189179][ T253] netdev_get_by_index+0x5e/0x80 [ 120.189179][ T253] fib6_nh_init+0x3d8/0x1580 [ 120.189179][ T253] ip6_route_info_create+0xf18/0x17d0 [ 120.189179][ T253] addrconf_f6i_alloc+0x265/0x560 [ 120.189179][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 120.189179][ T253] addrconf_join_anycast+0x1c0/0x220 [ 120.189179][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 120.189179][ T253] addrconf_dad_completed+0x12b/0xe20 [ 120.189179][ T253] addrconf_dad_begin+0x310/0x670 [ 120.189179][ T253] addrconf_dad_work+0x10b/0xab0 [ 120.189179][ T253] process_one_work+0x84d/0x18a0 [ 120.189179][ T253] worker_thread+0x587/0xd30 [ 120.189179][ T253] kthread+0x28a/0x350 [ 120.189179][ T253] ret_from_fork+0x31/0x70 [ 120.189179][ T253] ret_from_fork_asm+0x1a/0x30 [ 120.189179][ T253] [ 120.191355][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 120.191355][ T253] netdev_get_by_index+0x5e/0x80 [ 120.191355][ T253] fib6_nh_init+0x3d8/0x1580 [ 120.191355][ T253] ip6_route_info_create+0xf18/0x17d0 [ 120.191355][ T253] ip6_route_add+0x1c/0x140 [ 120.191355][ T253] addrconf_prefix_route+0x2a6/0x430 [ 120.191355][ T253] inet6_addr_add+0x4f8/0xa40 [ 120.191355][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 120.191355][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 120.191355][ T253] netlink_rcv_skb+0x130/0x360 [ 120.191355][ T253] netlink_unicast+0x449/0x710 [ 120.191355][ T253] netlink_sendmsg+0x723/0xbe0 [ 120.191355][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 120.191355][ T253] ___sys_sendmsg+0xee/0x170 [ 120.191355][ T253] __sys_sendmsg+0xcd/0x170 [ 120.191355][ T253] do_syscall_64+0xc6/0x1e0 [ 120.191355][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 120.191355][ T253] [ 120.193630][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 120.193630][ T253] netdev_get_by_index+0x5e/0x80 [ 120.193630][ T253] fib6_nh_init+0x3d8/0x1580 [ 120.193630][ T253] ip6_route_info_create+0xf18/0x17d0 [ 120.193630][ T253] addrconf_f6i_alloc+0x315/0x560 [ 120.193630][ T253] ipv6_add_addr+0x411/0x2000 [ 120.193630][ T253] inet6_addr_add+0x30e/0xa40 [ 120.193630][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 120.193630][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 120.193630][ T253] netlink_rcv_skb+0x130/0x360 [ 120.193630][ T253] netlink_unicast+0x449/0x710 [ 120.193630][ T253] netlink_sendmsg+0x723/0xbe0 [ 120.193630][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 120.193630][ T253] ___sys_sendmsg+0xee/0x170 [ 120.193630][ T253] __sys_sendmsg+0xcd/0x170 [ 120.193630][ T253] do_syscall_64+0xc6/0x1e0 [ 120.193630][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 120.193630][ T253] [ 120.195897][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 120.195897][ T253] netdev_get_by_index+0x5e/0x80 [ 120.195897][ T253] fib6_nh_init+0x3d8/0x1580 [ 120.195897][ T253] ip6_route_info_create+0xf18/0x17d0 [ 120.195897][ T253] ip6_route_add+0x1c/0x140 [ 120.195897][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 120.195897][ T253] addrconf_add_dev+0xe2/0x170 [ 120.195897][ T253] inet6_addr_add+0x12f/0xa40 [ 120.195897][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 120.195897][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 120.195897][ T253] netlink_rcv_skb+0x130/0x360 [ 120.195897][ T253] netlink_unicast+0x449/0x710 [ 120.195897][ T253] netlink_sendmsg+0x723/0xbe0 [ 120.195897][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 120.195897][ T253] ___sys_sendmsg+0xee/0x170 [ 120.195897][ T253] __sys_sendmsg+0xcd/0x170 [ 120.195897][ T253] do_syscall_64+0xc6/0x1e0 [ 120.195897][ T253] [ 120.198124][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 120.198124][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 120.198124][ T253] ipv6_find_idev+0x102/0x170 [ 120.198124][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 120.198124][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 120.198124][ T253] netlink_rcv_skb+0x130/0x360 [ 120.198124][ T253] netlink_unicast+0x449/0x710 [ 120.198124][ T253] netlink_sendmsg+0x723/0xbe0 [ 120.198124][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 120.198124][ T253] ___sys_sendmsg+0xee/0x170 [ 120.198124][ T253] __sys_sendmsg+0xcd/0x170 [ 120.198124][ T253] do_syscall_64+0xc6/0x1e0 [ 120.198124][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 120.198124][ T253] [ 120.199870][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 120.199870][ T253] neigh_parms_alloc+0x1e5/0x510 [ 120.199870][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 120.199870][ T253] ipv6_find_idev+0x102/0x170 [ 120.199870][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 120.199870][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 120.199870][ T253] netlink_rcv_skb+0x130/0x360 [ 120.199870][ T253] netlink_unicast+0x449/0x710 [ 120.199870][ T253] netlink_sendmsg+0x723/0xbe0 [ 120.199870][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 120.199870][ T253] ___sys_sendmsg+0xee/0x170 [ 120.199870][ T253] __sys_sendmsg+0xcd/0x170 [ 120.199870][ T253] do_syscall_64+0xc6/0x1e0 [ 120.199870][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 120.199870][ T253] [ 130.442275][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 130.442835][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 130.442835][ T253] dst_init+0x84/0x4a0 [ 130.442835][ T253] dst_alloc+0x97/0x150 [ 130.442835][ T253] ip6_dst_alloc+0x23/0x90 [ 130.442835][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 130.442835][ T253] ip6_pol_route+0x56f/0x840 [ 130.442835][ T253] fib6_rule_lookup+0x334/0x630 [ 130.442835][ T253] ip6_route_output_flags+0x259/0x480 [ 130.442835][ T253] inet6_rtm_getroute+0x980/0xf70 [ 130.442835][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 130.442835][ T253] netlink_rcv_skb+0x130/0x360 [ 130.442835][ T253] netlink_unicast+0x449/0x710 [ 130.442835][ T253] netlink_sendmsg+0x723/0xbe0 [ 130.442835][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 130.442835][ T253] ___sys_sendmsg+0xee/0x170 [ 130.442835][ T253] __sys_sendmsg+0xcd/0x170 [ 130.442835][ T253] do_syscall_64+0xc6/0x1e0 [ 130.442835][ T253] [ 130.445339][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 130.445339][ T253] netdev_get_by_index+0x5e/0x80 [ 130.445339][ T253] fib6_nh_init+0x3d8/0x1580 [ 130.445339][ T253] ip6_route_info_create+0xf18/0x17d0 [ 130.445339][ T253] addrconf_f6i_alloc+0x265/0x560 [ 130.445339][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 130.445339][ T253] addrconf_join_anycast+0x1c0/0x220 [ 130.445339][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 130.445339][ T253] addrconf_dad_completed+0x12b/0xe20 [ 130.445339][ T253] addrconf_dad_begin+0x310/0x670 [ 130.445339][ T253] addrconf_dad_work+0x10b/0xab0 [ 130.445339][ T253] process_one_work+0x84d/0x18a0 [ 130.445339][ T253] worker_thread+0x587/0xd30 [ 130.445339][ T253] kthread+0x28a/0x350 [ 130.445339][ T253] ret_from_fork+0x31/0x70 [ 130.445339][ T253] ret_from_fork_asm+0x1a/0x30 [ 130.445339][ T253] [ 130.447753][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 130.447753][ T253] netdev_get_by_index+0x5e/0x80 [ 130.447753][ T253] fib6_nh_init+0x3d8/0x1580 [ 130.447753][ T253] ip6_route_info_create+0xf18/0x17d0 [ 130.447753][ T253] ip6_route_add+0x1c/0x140 [ 130.447753][ T253] addrconf_prefix_route+0x2a6/0x430 [ 130.447753][ T253] inet6_addr_add+0x4f8/0xa40 [ 130.447753][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 130.447753][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 130.447753][ T253] netlink_rcv_skb+0x130/0x360 [ 130.447753][ T253] netlink_unicast+0x449/0x710 [ 130.447753][ T253] netlink_sendmsg+0x723/0xbe0 [ 130.447753][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 130.447753][ T253] ___sys_sendmsg+0xee/0x170 [ 130.447753][ T253] __sys_sendmsg+0xcd/0x170 [ 130.447753][ T253] do_syscall_64+0xc6/0x1e0 [ 130.447753][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 130.447753][ T253] [ 130.450287][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 130.450287][ T253] netdev_get_by_index+0x5e/0x80 [ 130.450287][ T253] fib6_nh_init+0x3d8/0x1580 [ 130.450287][ T253] ip6_route_info_create+0xf18/0x17d0 [ 130.450287][ T253] addrconf_f6i_alloc+0x315/0x560 [ 130.450287][ T253] ipv6_add_addr+0x411/0x2000 [ 130.450287][ T253] inet6_addr_add+0x30e/0xa40 [ 130.450287][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 130.450287][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 130.450287][ T253] netlink_rcv_skb+0x130/0x360 [ 130.450287][ T253] netlink_unicast+0x449/0x710 [ 130.450287][ T253] netlink_sendmsg+0x723/0xbe0 [ 130.450287][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 130.450287][ T253] ___sys_sendmsg+0xee/0x170 [ 130.450287][ T253] __sys_sendmsg+0xcd/0x170 [ 130.450287][ T253] do_syscall_64+0xc6/0x1e0 [ 130.450287][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 130.450287][ T253] [ 130.452825][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 130.452825][ T253] netdev_get_by_index+0x5e/0x80 [ 130.452825][ T253] fib6_nh_init+0x3d8/0x1580 [ 130.452825][ T253] ip6_route_info_create+0xf18/0x17d0 [ 130.452825][ T253] ip6_route_add+0x1c/0x140 [ 130.452825][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 130.452825][ T253] addrconf_add_dev+0xe2/0x170 [ 130.452825][ T253] inet6_addr_add+0x12f/0xa40 [ 130.452825][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 130.452825][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 130.452825][ T253] netlink_rcv_skb+0x130/0x360 [ 130.452825][ T253] netlink_unicast+0x449/0x710 [ 130.452825][ T253] netlink_sendmsg+0x723/0xbe0 [ 130.452825][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 130.452825][ T253] ___sys_sendmsg+0xee/0x170 [ 130.452825][ T253] __sys_sendmsg+0xcd/0x170 [ 130.452825][ T253] do_syscall_64+0xc6/0x1e0 [ 130.452825][ T253] [ 130.455340][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 130.455340][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 130.455340][ T253] ipv6_find_idev+0x102/0x170 [ 130.455340][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 130.455340][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 130.455340][ T253] netlink_rcv_skb+0x130/0x360 [ 130.455340][ T253] netlink_unicast+0x449/0x710 [ 130.455340][ T253] netlink_sendmsg+0x723/0xbe0 [ 130.455340][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 130.455340][ T253] ___sys_sendmsg+0xee/0x170 [ 130.455340][ T253] __sys_sendmsg+0xcd/0x170 [ 130.455340][ T253] do_syscall_64+0xc6/0x1e0 [ 130.455340][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 130.455340][ T253] [ 130.457279][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 130.457279][ T253] neigh_parms_alloc+0x1e5/0x510 [ 130.457279][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 130.457279][ T253] ipv6_find_idev+0x102/0x170 [ 130.457279][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 130.457279][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 130.457279][ T253] netlink_rcv_skb+0x130/0x360 [ 130.457279][ T253] netlink_unicast+0x449/0x710 [ 130.457279][ T253] netlink_sendmsg+0x723/0xbe0 [ 130.457279][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 130.457279][ T253] ___sys_sendmsg+0xee/0x170 [ 130.457279][ T253] __sys_sendmsg+0xcd/0x170 [ 130.457279][ T253] do_syscall_64+0xc6/0x1e0 [ 130.457279][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 130.457279][ T253] [ 140.698384][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 140.698961][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 140.698961][ T253] dst_init+0x84/0x4a0 [ 140.698961][ T253] dst_alloc+0x97/0x150 [ 140.698961][ T253] ip6_dst_alloc+0x23/0x90 [ 140.698961][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 140.698961][ T253] ip6_pol_route+0x56f/0x840 [ 140.698961][ T253] fib6_rule_lookup+0x334/0x630 [ 140.698961][ T253] ip6_route_output_flags+0x259/0x480 [ 140.698961][ T253] inet6_rtm_getroute+0x980/0xf70 [ 140.698961][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 140.698961][ T253] netlink_rcv_skb+0x130/0x360 [ 140.698961][ T253] netlink_unicast+0x449/0x710 [ 140.698961][ T253] netlink_sendmsg+0x723/0xbe0 [ 140.698961][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 140.698961][ T253] ___sys_sendmsg+0xee/0x170 [ 140.698961][ T253] __sys_sendmsg+0xcd/0x170 [ 140.698961][ T253] do_syscall_64+0xc6/0x1e0 [ 140.698961][ T253] [ 140.701277][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 140.701277][ T253] netdev_get_by_index+0x5e/0x80 [ 140.701277][ T253] fib6_nh_init+0x3d8/0x1580 [ 140.701277][ T253] ip6_route_info_create+0xf18/0x17d0 [ 140.701277][ T253] addrconf_f6i_alloc+0x265/0x560 [ 140.701277][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 140.701277][ T253] addrconf_join_anycast+0x1c0/0x220 [ 140.701277][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 140.701277][ T253] addrconf_dad_completed+0x12b/0xe20 [ 140.701277][ T253] addrconf_dad_begin+0x310/0x670 [ 140.701277][ T253] addrconf_dad_work+0x10b/0xab0 [ 140.701277][ T253] process_one_work+0x84d/0x18a0 [ 140.701277][ T253] worker_thread+0x587/0xd30 [ 140.701277][ T253] kthread+0x28a/0x350 [ 140.701277][ T253] ret_from_fork+0x31/0x70 [ 140.701277][ T253] ret_from_fork_asm+0x1a/0x30 [ 140.701277][ T253] [ 140.703618][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 140.703618][ T253] netdev_get_by_index+0x5e/0x80 [ 140.703618][ T253] fib6_nh_init+0x3d8/0x1580 [ 140.703618][ T253] ip6_route_info_create+0xf18/0x17d0 [ 140.703618][ T253] ip6_route_add+0x1c/0x140 [ 140.703618][ T253] addrconf_prefix_route+0x2a6/0x430 [ 140.703618][ T253] inet6_addr_add+0x4f8/0xa40 [ 140.703618][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 140.703618][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 140.703618][ T253] netlink_rcv_skb+0x130/0x360 [ 140.703618][ T253] netlink_unicast+0x449/0x710 [ 140.703618][ T253] netlink_sendmsg+0x723/0xbe0 [ 140.703618][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 140.703618][ T253] ___sys_sendmsg+0xee/0x170 [ 140.703618][ T253] __sys_sendmsg+0xcd/0x170 [ 140.703618][ T253] do_syscall_64+0xc6/0x1e0 [ 140.703618][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 140.703618][ T253] [ 140.706059][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 140.706059][ T253] netdev_get_by_index+0x5e/0x80 [ 140.706059][ T253] fib6_nh_init+0x3d8/0x1580 [ 140.706059][ T253] ip6_route_info_create+0xf18/0x17d0 [ 140.706059][ T253] addrconf_f6i_alloc+0x315/0x560 [ 140.706059][ T253] ipv6_add_addr+0x411/0x2000 [ 140.706059][ T253] inet6_addr_add+0x30e/0xa40 [ 140.706059][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 140.706059][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 140.706059][ T253] netlink_rcv_skb+0x130/0x360 [ 140.706059][ T253] netlink_unicast+0x449/0x710 [ 140.706059][ T253] netlink_sendmsg+0x723/0xbe0 [ 140.706059][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 140.706059][ T253] ___sys_sendmsg+0xee/0x170 [ 140.706059][ T253] __sys_sendmsg+0xcd/0x170 [ 140.706059][ T253] do_syscall_64+0xc6/0x1e0 [ 140.706059][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 140.706059][ T253] [ 140.708516][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 140.708516][ T253] netdev_get_by_index+0x5e/0x80 [ 140.708516][ T253] fib6_nh_init+0x3d8/0x1580 [ 140.708516][ T253] ip6_route_info_create+0xf18/0x17d0 [ 140.708516][ T253] ip6_route_add+0x1c/0x140 [ 140.708516][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 140.708516][ T253] addrconf_add_dev+0xe2/0x170 [ 140.708516][ T253] inet6_addr_add+0x12f/0xa40 [ 140.708516][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 140.708516][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 140.708516][ T253] netlink_rcv_skb+0x130/0x360 [ 140.708516][ T253] netlink_unicast+0x449/0x710 [ 140.708516][ T253] netlink_sendmsg+0x723/0xbe0 [ 140.708516][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 140.708516][ T253] ___sys_sendmsg+0xee/0x170 [ 140.708516][ T253] __sys_sendmsg+0xcd/0x170 [ 140.708516][ T253] do_syscall_64+0xc6/0x1e0 [ 140.708516][ T253] [ 140.710941][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 140.710941][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 140.710941][ T253] ipv6_find_idev+0x102/0x170 [ 140.710941][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 140.710941][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 140.710941][ T253] netlink_rcv_skb+0x130/0x360 [ 140.710941][ T253] netlink_unicast+0x449/0x710 [ 140.710941][ T253] netlink_sendmsg+0x723/0xbe0 [ 140.710941][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 140.710941][ T253] ___sys_sendmsg+0xee/0x170 [ 140.710941][ T253] __sys_sendmsg+0xcd/0x170 [ 140.710941][ T253] do_syscall_64+0xc6/0x1e0 [ 140.710941][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 140.710941][ T253] [ 140.712821][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 140.712821][ T253] neigh_parms_alloc+0x1e5/0x510 [ 140.712821][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 140.712821][ T253] ipv6_find_idev+0x102/0x170 [ 140.712821][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 140.712821][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 140.712821][ T253] netlink_rcv_skb+0x130/0x360 [ 140.712821][ T253] netlink_unicast+0x449/0x710 [ 140.712821][ T253] netlink_sendmsg+0x723/0xbe0 [ 140.712821][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 140.712821][ T253] ___sys_sendmsg+0xee/0x170 [ 140.712821][ T253] __sys_sendmsg+0xcd/0x170 [ 140.712821][ T253] do_syscall_64+0xc6/0x1e0 [ 140.712821][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 140.712821][ T253] [ 150.954307][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 150.954825][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 150.954825][ T253] dst_init+0x84/0x4a0 [ 150.954825][ T253] dst_alloc+0x97/0x150 [ 150.954825][ T253] ip6_dst_alloc+0x23/0x90 [ 150.954825][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 150.954825][ T253] ip6_pol_route+0x56f/0x840 [ 150.954825][ T253] fib6_rule_lookup+0x334/0x630 [ 150.954825][ T253] ip6_route_output_flags+0x259/0x480 [ 150.954825][ T253] inet6_rtm_getroute+0x980/0xf70 [ 150.954825][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 150.954825][ T253] netlink_rcv_skb+0x130/0x360 [ 150.954825][ T253] netlink_unicast+0x449/0x710 [ 150.954825][ T253] netlink_sendmsg+0x723/0xbe0 [ 150.954825][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 150.954825][ T253] ___sys_sendmsg+0xee/0x170 [ 150.954825][ T253] __sys_sendmsg+0xcd/0x170 [ 150.954825][ T253] do_syscall_64+0xc6/0x1e0 [ 150.954825][ T253] [ 150.957414][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 150.957414][ T253] netdev_get_by_index+0x5e/0x80 [ 150.957414][ T253] fib6_nh_init+0x3d8/0x1580 [ 150.957414][ T253] ip6_route_info_create+0xf18/0x17d0 [ 150.957414][ T253] addrconf_f6i_alloc+0x265/0x560 [ 150.957414][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 150.957414][ T253] addrconf_join_anycast+0x1c0/0x220 [ 150.957414][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 150.957414][ T253] addrconf_dad_completed+0x12b/0xe20 [ 150.957414][ T253] addrconf_dad_begin+0x310/0x670 [ 150.957414][ T253] addrconf_dad_work+0x10b/0xab0 [ 150.957414][ T253] process_one_work+0x84d/0x18a0 [ 150.957414][ T253] worker_thread+0x587/0xd30 [ 150.957414][ T253] kthread+0x28a/0x350 [ 150.957414][ T253] ret_from_fork+0x31/0x70 [ 150.957414][ T253] ret_from_fork_asm+0x1a/0x30 [ 150.957414][ T253] [ 150.959957][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 150.959957][ T253] netdev_get_by_index+0x5e/0x80 [ 150.959957][ T253] fib6_nh_init+0x3d8/0x1580 [ 150.959957][ T253] ip6_route_info_create+0xf18/0x17d0 [ 150.959957][ T253] ip6_route_add+0x1c/0x140 [ 150.959957][ T253] addrconf_prefix_route+0x2a6/0x430 [ 150.959957][ T253] inet6_addr_add+0x4f8/0xa40 [ 150.959957][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 150.959957][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 150.959957][ T253] netlink_rcv_skb+0x130/0x360 [ 150.959957][ T253] netlink_unicast+0x449/0x710 [ 150.959957][ T253] netlink_sendmsg+0x723/0xbe0 [ 150.959957][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 150.959957][ T253] ___sys_sendmsg+0xee/0x170 [ 150.959957][ T253] __sys_sendmsg+0xcd/0x170 [ 150.959957][ T253] do_syscall_64+0xc6/0x1e0 [ 150.959957][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 150.959957][ T253] [ 150.962595][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 150.962595][ T253] netdev_get_by_index+0x5e/0x80 [ 150.962595][ T253] fib6_nh_init+0x3d8/0x1580 [ 150.962595][ T253] ip6_route_info_create+0xf18/0x17d0 [ 150.962595][ T253] addrconf_f6i_alloc+0x315/0x560 [ 150.962595][ T253] ipv6_add_addr+0x411/0x2000 [ 150.962595][ T253] inet6_addr_add+0x30e/0xa40 [ 150.962595][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 150.962595][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 150.962595][ T253] netlink_rcv_skb+0x130/0x360 [ 150.962595][ T253] netlink_unicast+0x449/0x710 [ 150.962595][ T253] netlink_sendmsg+0x723/0xbe0 [ 150.962595][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 150.962595][ T253] ___sys_sendmsg+0xee/0x170 [ 150.962595][ T253] __sys_sendmsg+0xcd/0x170 [ 150.962595][ T253] do_syscall_64+0xc6/0x1e0 [ 150.962595][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 150.962595][ T253] [ 150.965251][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 150.965251][ T253] netdev_get_by_index+0x5e/0x80 [ 150.965251][ T253] fib6_nh_init+0x3d8/0x1580 [ 150.965251][ T253] ip6_route_info_create+0xf18/0x17d0 [ 150.965251][ T253] ip6_route_add+0x1c/0x140 [ 150.965251][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 150.965251][ T253] addrconf_add_dev+0xe2/0x170 [ 150.965251][ T253] inet6_addr_add+0x12f/0xa40 [ 150.965251][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 150.965251][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 150.965251][ T253] netlink_rcv_skb+0x130/0x360 [ 150.965251][ T253] netlink_unicast+0x449/0x710 [ 150.965251][ T253] netlink_sendmsg+0x723/0xbe0 [ 150.965251][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 150.965251][ T253] ___sys_sendmsg+0xee/0x170 [ 150.965251][ T253] __sys_sendmsg+0xcd/0x170 [ 150.965251][ T253] do_syscall_64+0xc6/0x1e0 [ 150.965251][ T253] [ 150.967843][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 150.967843][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 150.967843][ T253] ipv6_find_idev+0x102/0x170 [ 150.967843][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 150.967843][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 150.967843][ T253] netlink_rcv_skb+0x130/0x360 [ 150.967843][ T253] netlink_unicast+0x449/0x710 [ 150.967843][ T253] netlink_sendmsg+0x723/0xbe0 [ 150.967843][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 150.967843][ T253] ___sys_sendmsg+0xee/0x170 [ 150.967843][ T253] __sys_sendmsg+0xcd/0x170 [ 150.967843][ T253] do_syscall_64+0xc6/0x1e0 [ 150.967843][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 150.967843][ T253] [ 150.969879][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 150.969879][ T253] neigh_parms_alloc+0x1e5/0x510 [ 150.969879][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 150.969879][ T253] ipv6_find_idev+0x102/0x170 [ 150.969879][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 150.969879][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 150.969879][ T253] netlink_rcv_skb+0x130/0x360 [ 150.969879][ T253] netlink_unicast+0x449/0x710 [ 150.969879][ T253] netlink_sendmsg+0x723/0xbe0 [ 150.969879][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 150.969879][ T253] ___sys_sendmsg+0xee/0x170 [ 150.969879][ T253] __sys_sendmsg+0xcd/0x170 [ 150.969879][ T253] do_syscall_64+0xc6/0x1e0 [ 150.969879][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 150.969879][ T253] [ 161.210258][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 161.210753][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 161.210753][ T253] dst_init+0x84/0x4a0 [ 161.210753][ T253] dst_alloc+0x97/0x150 [ 161.210753][ T253] ip6_dst_alloc+0x23/0x90 [ 161.210753][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 161.210753][ T253] ip6_pol_route+0x56f/0x840 [ 161.210753][ T253] fib6_rule_lookup+0x334/0x630 [ 161.210753][ T253] ip6_route_output_flags+0x259/0x480 [ 161.210753][ T253] inet6_rtm_getroute+0x980/0xf70 [ 161.210753][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 161.210753][ T253] netlink_rcv_skb+0x130/0x360 [ 161.210753][ T253] netlink_unicast+0x449/0x710 [ 161.210753][ T253] netlink_sendmsg+0x723/0xbe0 [ 161.210753][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 161.210753][ T253] ___sys_sendmsg+0xee/0x170 [ 161.210753][ T253] __sys_sendmsg+0xcd/0x170 [ 161.210753][ T253] do_syscall_64+0xc6/0x1e0 [ 161.210753][ T253] [ 161.213398][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 161.213398][ T253] netdev_get_by_index+0x5e/0x80 [ 161.213398][ T253] fib6_nh_init+0x3d8/0x1580 [ 161.213398][ T253] ip6_route_info_create+0xf18/0x17d0 [ 161.213398][ T253] addrconf_f6i_alloc+0x265/0x560 [ 161.213398][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 161.213398][ T253] addrconf_join_anycast+0x1c0/0x220 [ 161.213398][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 161.213398][ T253] addrconf_dad_completed+0x12b/0xe20 [ 161.213398][ T253] addrconf_dad_begin+0x310/0x670 [ 161.213398][ T253] addrconf_dad_work+0x10b/0xab0 [ 161.213398][ T253] process_one_work+0x84d/0x18a0 [ 161.213398][ T253] worker_thread+0x587/0xd30 [ 161.213398][ T253] kthread+0x28a/0x350 [ 161.213398][ T253] ret_from_fork+0x31/0x70 [ 161.213398][ T253] ret_from_fork_asm+0x1a/0x30 [ 161.213398][ T253] [ 161.215965][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 161.215965][ T253] netdev_get_by_index+0x5e/0x80 [ 161.215965][ T253] fib6_nh_init+0x3d8/0x1580 [ 161.215965][ T253] ip6_route_info_create+0xf18/0x17d0 [ 161.215965][ T253] ip6_route_add+0x1c/0x140 [ 161.215965][ T253] addrconf_prefix_route+0x2a6/0x430 [ 161.215965][ T253] inet6_addr_add+0x4f8/0xa40 [ 161.215965][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 161.215965][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 161.215965][ T253] netlink_rcv_skb+0x130/0x360 [ 161.215965][ T253] netlink_unicast+0x449/0x710 [ 161.215965][ T253] netlink_sendmsg+0x723/0xbe0 [ 161.215965][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 161.215965][ T253] ___sys_sendmsg+0xee/0x170 [ 161.215965][ T253] __sys_sendmsg+0xcd/0x170 [ 161.215965][ T253] do_syscall_64+0xc6/0x1e0 [ 161.215965][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 161.215965][ T253] [ 161.218665][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 161.218665][ T253] netdev_get_by_index+0x5e/0x80 [ 161.218665][ T253] fib6_nh_init+0x3d8/0x1580 [ 161.218665][ T253] ip6_route_info_create+0xf18/0x17d0 [ 161.218665][ T253] addrconf_f6i_alloc+0x315/0x560 [ 161.218665][ T253] ipv6_add_addr+0x411/0x2000 [ 161.218665][ T253] inet6_addr_add+0x30e/0xa40 [ 161.218665][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 161.218665][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 161.218665][ T253] netlink_rcv_skb+0x130/0x360 [ 161.218665][ T253] netlink_unicast+0x449/0x710 [ 161.218665][ T253] netlink_sendmsg+0x723/0xbe0 [ 161.218665][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 161.218665][ T253] ___sys_sendmsg+0xee/0x170 [ 161.218665][ T253] __sys_sendmsg+0xcd/0x170 [ 161.218665][ T253] do_syscall_64+0xc6/0x1e0 [ 161.218665][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 161.218665][ T253] [ 161.221357][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 161.221357][ T253] netdev_get_by_index+0x5e/0x80 [ 161.221357][ T253] fib6_nh_init+0x3d8/0x1580 [ 161.221357][ T253] ip6_route_info_create+0xf18/0x17d0 [ 161.221357][ T253] ip6_route_add+0x1c/0x140 [ 161.221357][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 161.221357][ T253] addrconf_add_dev+0xe2/0x170 [ 161.221357][ T253] inet6_addr_add+0x12f/0xa40 [ 161.221357][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 161.221357][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 161.221357][ T253] netlink_rcv_skb+0x130/0x360 [ 161.221357][ T253] netlink_unicast+0x449/0x710 [ 161.221357][ T253] netlink_sendmsg+0x723/0xbe0 [ 161.221357][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 161.221357][ T253] ___sys_sendmsg+0xee/0x170 [ 161.221357][ T253] __sys_sendmsg+0xcd/0x170 [ 161.221357][ T253] do_syscall_64+0xc6/0x1e0 [ 161.221357][ T253] [ 161.223999][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 161.223999][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 161.223999][ T253] ipv6_find_idev+0x102/0x170 [ 161.223999][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 161.223999][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 161.223999][ T253] netlink_rcv_skb+0x130/0x360 [ 161.223999][ T253] netlink_unicast+0x449/0x710 [ 161.223999][ T253] netlink_sendmsg+0x723/0xbe0 [ 161.223999][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 161.223999][ T253] ___sys_sendmsg+0xee/0x170 [ 161.223999][ T253] __sys_sendmsg+0xcd/0x170 [ 161.223999][ T253] do_syscall_64+0xc6/0x1e0 [ 161.223999][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 161.223999][ T253] [ 161.226066][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 161.226066][ T253] neigh_parms_alloc+0x1e5/0x510 [ 161.226066][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 161.226066][ T253] ipv6_find_idev+0x102/0x170 [ 161.226066][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 161.226066][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 161.226066][ T253] netlink_rcv_skb+0x130/0x360 [ 161.226066][ T253] netlink_unicast+0x449/0x710 [ 161.226066][ T253] netlink_sendmsg+0x723/0xbe0 [ 161.226066][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 161.226066][ T253] ___sys_sendmsg+0xee/0x170 [ 161.226066][ T253] __sys_sendmsg+0xcd/0x170 [ 161.226066][ T253] do_syscall_64+0xc6/0x1e0 [ 161.226066][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 161.226066][ T253] [ 171.466327][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 171.466831][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 171.466831][ T253] dst_init+0x84/0x4a0 [ 171.466831][ T253] dst_alloc+0x97/0x150 [ 171.466831][ T253] ip6_dst_alloc+0x23/0x90 [ 171.466831][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 171.466831][ T253] ip6_pol_route+0x56f/0x840 [ 171.466831][ T253] fib6_rule_lookup+0x334/0x630 [ 171.466831][ T253] ip6_route_output_flags+0x259/0x480 [ 171.466831][ T253] inet6_rtm_getroute+0x980/0xf70 [ 171.466831][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 171.466831][ T253] netlink_rcv_skb+0x130/0x360 [ 171.466831][ T253] netlink_unicast+0x449/0x710 [ 171.466831][ T253] netlink_sendmsg+0x723/0xbe0 [ 171.466831][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 171.466831][ T253] ___sys_sendmsg+0xee/0x170 [ 171.466831][ T253] __sys_sendmsg+0xcd/0x170 [ 171.466831][ T253] do_syscall_64+0xc6/0x1e0 [ 171.466831][ T253] [ 171.469516][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 171.469516][ T253] netdev_get_by_index+0x5e/0x80 [ 171.469516][ T253] fib6_nh_init+0x3d8/0x1580 [ 171.469516][ T253] ip6_route_info_create+0xf18/0x17d0 [ 171.469516][ T253] addrconf_f6i_alloc+0x265/0x560 [ 171.469516][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 171.469516][ T253] addrconf_join_anycast+0x1c0/0x220 [ 171.469516][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 171.469516][ T253] addrconf_dad_completed+0x12b/0xe20 [ 171.469516][ T253] addrconf_dad_begin+0x310/0x670 [ 171.469516][ T253] addrconf_dad_work+0x10b/0xab0 [ 171.469516][ T253] process_one_work+0x84d/0x18a0 [ 171.469516][ T253] worker_thread+0x587/0xd30 [ 171.469516][ T253] kthread+0x28a/0x350 [ 171.469516][ T253] ret_from_fork+0x31/0x70 [ 171.469516][ T253] ret_from_fork_asm+0x1a/0x30 [ 171.469516][ T253] [ 171.472073][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 171.472073][ T253] netdev_get_by_index+0x5e/0x80 [ 171.472073][ T253] fib6_nh_init+0x3d8/0x1580 [ 171.472073][ T253] ip6_route_info_create+0xf18/0x17d0 [ 171.472073][ T253] ip6_route_add+0x1c/0x140 [ 171.472073][ T253] addrconf_prefix_route+0x2a6/0x430 [ 171.472073][ T253] inet6_addr_add+0x4f8/0xa40 [ 171.472073][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 171.472073][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 171.472073][ T253] netlink_rcv_skb+0x130/0x360 [ 171.472073][ T253] netlink_unicast+0x449/0x710 [ 171.472073][ T253] netlink_sendmsg+0x723/0xbe0 [ 171.472073][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 171.472073][ T253] ___sys_sendmsg+0xee/0x170 [ 171.472073][ T253] __sys_sendmsg+0xcd/0x170 [ 171.472073][ T253] do_syscall_64+0xc6/0x1e0 [ 171.472073][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 171.472073][ T253] [ 171.474744][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 171.474744][ T253] netdev_get_by_index+0x5e/0x80 [ 171.474744][ T253] fib6_nh_init+0x3d8/0x1580 [ 171.474744][ T253] ip6_route_info_create+0xf18/0x17d0 [ 171.474744][ T253] addrconf_f6i_alloc+0x315/0x560 [ 171.474744][ T253] ipv6_add_addr+0x411/0x2000 [ 171.474744][ T253] inet6_addr_add+0x30e/0xa40 [ 171.474744][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 171.474744][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 171.474744][ T253] netlink_rcv_skb+0x130/0x360 [ 171.474744][ T253] netlink_unicast+0x449/0x710 [ 171.474744][ T253] netlink_sendmsg+0x723/0xbe0 [ 171.474744][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 171.474744][ T253] ___sys_sendmsg+0xee/0x170 [ 171.474744][ T253] __sys_sendmsg+0xcd/0x170 [ 171.474744][ T253] do_syscall_64+0xc6/0x1e0 [ 171.474744][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 171.474744][ T253] [ 171.477385][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 171.477385][ T253] netdev_get_by_index+0x5e/0x80 [ 171.477385][ T253] fib6_nh_init+0x3d8/0x1580 [ 171.477385][ T253] ip6_route_info_create+0xf18/0x17d0 [ 171.477385][ T253] ip6_route_add+0x1c/0x140 [ 171.477385][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 171.477385][ T253] addrconf_add_dev+0xe2/0x170 [ 171.477385][ T253] inet6_addr_add+0x12f/0xa40 [ 171.477385][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 171.477385][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 171.477385][ T253] netlink_rcv_skb+0x130/0x360 [ 171.477385][ T253] netlink_unicast+0x449/0x710 [ 171.477385][ T253] netlink_sendmsg+0x723/0xbe0 [ 171.477385][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 171.477385][ T253] ___sys_sendmsg+0xee/0x170 [ 171.477385][ T253] __sys_sendmsg+0xcd/0x170 [ 171.477385][ T253] do_syscall_64+0xc6/0x1e0 [ 171.477385][ T253] [ 171.480023][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 171.480023][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 171.480023][ T253] ipv6_find_idev+0x102/0x170 [ 171.480023][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 171.480023][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 171.480023][ T253] netlink_rcv_skb+0x130/0x360 [ 171.480023][ T253] netlink_unicast+0x449/0x710 [ 171.480023][ T253] netlink_sendmsg+0x723/0xbe0 [ 171.480023][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 171.480023][ T253] ___sys_sendmsg+0xee/0x170 [ 171.480023][ T253] __sys_sendmsg+0xcd/0x170 [ 171.480023][ T253] do_syscall_64+0xc6/0x1e0 [ 171.480023][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 171.480023][ T253] [ 171.482079][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 171.482079][ T253] neigh_parms_alloc+0x1e5/0x510 [ 171.482079][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 171.482079][ T253] ipv6_find_idev+0x102/0x170 [ 171.482079][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 171.482079][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 171.482079][ T253] netlink_rcv_skb+0x130/0x360 [ 171.482079][ T253] netlink_unicast+0x449/0x710 [ 171.482079][ T253] netlink_sendmsg+0x723/0xbe0 [ 171.482079][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 171.482079][ T253] ___sys_sendmsg+0xee/0x170 [ 171.482079][ T253] __sys_sendmsg+0xcd/0x170 [ 171.482079][ T253] do_syscall_64+0xc6/0x1e0 [ 171.482079][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 171.482079][ T253] [ 181.722237][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 181.722987][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 181.722987][ T253] dst_init+0x84/0x4a0 [ 181.722987][ T253] dst_alloc+0x97/0x150 [ 181.722987][ T253] ip6_dst_alloc+0x23/0x90 [ 181.722987][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 181.722987][ T253] ip6_pol_route+0x56f/0x840 [ 181.722987][ T253] fib6_rule_lookup+0x334/0x630 [ 181.722987][ T253] ip6_route_output_flags+0x259/0x480 [ 181.722987][ T253] inet6_rtm_getroute+0x980/0xf70 [ 181.722987][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 181.722987][ T253] netlink_rcv_skb+0x130/0x360 [ 181.722987][ T253] netlink_unicast+0x449/0x710 [ 181.722987][ T253] netlink_sendmsg+0x723/0xbe0 [ 181.722987][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 181.722987][ T253] ___sys_sendmsg+0xee/0x170 [ 181.722987][ T253] __sys_sendmsg+0xcd/0x170 [ 181.722987][ T253] do_syscall_64+0xc6/0x1e0 [ 181.722987][ T253] [ 181.725662][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 181.725662][ T253] netdev_get_by_index+0x5e/0x80 [ 181.725662][ T253] fib6_nh_init+0x3d8/0x1580 [ 181.725662][ T253] ip6_route_info_create+0xf18/0x17d0 [ 181.725662][ T253] addrconf_f6i_alloc+0x265/0x560 [ 181.725662][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 181.725662][ T253] addrconf_join_anycast+0x1c0/0x220 [ 181.725662][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 181.725662][ T253] addrconf_dad_completed+0x12b/0xe20 [ 181.725662][ T253] addrconf_dad_begin+0x310/0x670 [ 181.725662][ T253] addrconf_dad_work+0x10b/0xab0 [ 181.725662][ T253] process_one_work+0x84d/0x18a0 [ 181.725662][ T253] worker_thread+0x587/0xd30 [ 181.725662][ T253] kthread+0x28a/0x350 [ 181.725662][ T253] ret_from_fork+0x31/0x70 [ 181.725662][ T253] ret_from_fork_asm+0x1a/0x30 [ 181.725662][ T253] [ 181.728246][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 181.728246][ T253] netdev_get_by_index+0x5e/0x80 [ 181.728246][ T253] fib6_nh_init+0x3d8/0x1580 [ 181.728246][ T253] ip6_route_info_create+0xf18/0x17d0 [ 181.728246][ T253] ip6_route_add+0x1c/0x140 [ 181.728246][ T253] addrconf_prefix_route+0x2a6/0x430 [ 181.728246][ T253] inet6_addr_add+0x4f8/0xa40 [ 181.728246][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 181.728246][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 181.728246][ T253] netlink_rcv_skb+0x130/0x360 [ 181.728246][ T253] netlink_unicast+0x449/0x710 [ 181.728246][ T253] netlink_sendmsg+0x723/0xbe0 [ 181.728246][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 181.728246][ T253] ___sys_sendmsg+0xee/0x170 [ 181.728246][ T253] __sys_sendmsg+0xcd/0x170 [ 181.728246][ T253] do_syscall_64+0xc6/0x1e0 [ 181.728246][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 181.728246][ T253] [ 181.730975][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 181.730975][ T253] netdev_get_by_index+0x5e/0x80 [ 181.730975][ T253] fib6_nh_init+0x3d8/0x1580 [ 181.730975][ T253] ip6_route_info_create+0xf18/0x17d0 [ 181.730975][ T253] addrconf_f6i_alloc+0x315/0x560 [ 181.730975][ T253] ipv6_add_addr+0x411/0x2000 [ 181.730975][ T253] inet6_addr_add+0x30e/0xa40 [ 181.730975][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 181.730975][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 181.730975][ T253] netlink_rcv_skb+0x130/0x360 [ 181.730975][ T253] netlink_unicast+0x449/0x710 [ 181.730975][ T253] netlink_sendmsg+0x723/0xbe0 [ 181.730975][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 181.730975][ T253] ___sys_sendmsg+0xee/0x170 [ 181.730975][ T253] __sys_sendmsg+0xcd/0x170 [ 181.730975][ T253] do_syscall_64+0xc6/0x1e0 [ 181.730975][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 181.730975][ T253] [ 181.733768][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 181.733768][ T253] netdev_get_by_index+0x5e/0x80 [ 181.733768][ T253] fib6_nh_init+0x3d8/0x1580 [ 181.733768][ T253] ip6_route_info_create+0xf18/0x17d0 [ 181.733768][ T253] ip6_route_add+0x1c/0x140 [ 181.733768][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 181.733768][ T253] addrconf_add_dev+0xe2/0x170 [ 181.733768][ T253] inet6_addr_add+0x12f/0xa40 [ 181.733768][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 181.733768][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 181.733768][ T253] netlink_rcv_skb+0x130/0x360 [ 181.733768][ T253] netlink_unicast+0x449/0x710 [ 181.733768][ T253] netlink_sendmsg+0x723/0xbe0 [ 181.733768][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 181.733768][ T253] ___sys_sendmsg+0xee/0x170 [ 181.733768][ T253] __sys_sendmsg+0xcd/0x170 [ 181.733768][ T253] do_syscall_64+0xc6/0x1e0 [ 181.733768][ T253] [ 181.736542][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 181.736542][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 181.736542][ T253] ipv6_find_idev+0x102/0x170 [ 181.736542][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 181.736542][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 181.736542][ T253] netlink_rcv_skb+0x130/0x360 [ 181.736542][ T253] netlink_unicast+0x449/0x710 [ 181.736542][ T253] netlink_sendmsg+0x723/0xbe0 [ 181.736542][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 181.736542][ T253] ___sys_sendmsg+0xee/0x170 [ 181.736542][ T253] __sys_sendmsg+0xcd/0x170 [ 181.736542][ T253] do_syscall_64+0xc6/0x1e0 [ 181.736542][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 181.736542][ T253] [ 181.738639][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 181.738639][ T253] neigh_parms_alloc+0x1e5/0x510 [ 181.738639][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 181.738639][ T253] ipv6_find_idev+0x102/0x170 [ 181.738639][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 181.738639][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 181.738639][ T253] netlink_rcv_skb+0x130/0x360 [ 181.738639][ T253] netlink_unicast+0x449/0x710 [ 181.738639][ T253] netlink_sendmsg+0x723/0xbe0 [ 181.738639][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 181.738639][ T253] ___sys_sendmsg+0xee/0x170 [ 181.738639][ T253] __sys_sendmsg+0xcd/0x170 [ 181.738639][ T253] do_syscall_64+0xc6/0x1e0 [ 181.738639][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 181.738639][ T253] [ 191.842315][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 191.842824][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 191.842824][ T253] dst_init+0x84/0x4a0 [ 191.842824][ T253] dst_alloc+0x97/0x150 [ 191.842824][ T253] ip6_dst_alloc+0x23/0x90 [ 191.842824][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 191.842824][ T253] ip6_pol_route+0x56f/0x840 [ 191.842824][ T253] fib6_rule_lookup+0x334/0x630 [ 191.842824][ T253] ip6_route_output_flags+0x259/0x480 [ 191.842824][ T253] inet6_rtm_getroute+0x980/0xf70 [ 191.842824][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 191.842824][ T253] netlink_rcv_skb+0x130/0x360 [ 191.842824][ T253] netlink_unicast+0x449/0x710 [ 191.842824][ T253] netlink_sendmsg+0x723/0xbe0 [ 191.842824][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 191.842824][ T253] ___sys_sendmsg+0xee/0x170 [ 191.842824][ T253] __sys_sendmsg+0xcd/0x170 [ 191.842824][ T253] do_syscall_64+0xc6/0x1e0 [ 191.842824][ T253] [ 191.845502][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 191.845502][ T253] netdev_get_by_index+0x5e/0x80 [ 191.845502][ T253] fib6_nh_init+0x3d8/0x1580 [ 191.845502][ T253] ip6_route_info_create+0xf18/0x17d0 [ 191.845502][ T253] addrconf_f6i_alloc+0x265/0x560 [ 191.845502][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 191.845502][ T253] addrconf_join_anycast+0x1c0/0x220 [ 191.845502][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 191.845502][ T253] addrconf_dad_completed+0x12b/0xe20 [ 191.845502][ T253] addrconf_dad_begin+0x310/0x670 [ 191.845502][ T253] addrconf_dad_work+0x10b/0xab0 [ 191.845502][ T253] process_one_work+0x84d/0x18a0 [ 191.845502][ T253] worker_thread+0x587/0xd30 [ 191.845502][ T253] kthread+0x28a/0x350 [ 191.845502][ T253] ret_from_fork+0x31/0x70 [ 191.845502][ T253] ret_from_fork_asm+0x1a/0x30 [ 191.845502][ T253] [ 191.848084][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 191.848084][ T253] netdev_get_by_index+0x5e/0x80 [ 191.848084][ T253] fib6_nh_init+0x3d8/0x1580 [ 191.848084][ T253] ip6_route_info_create+0xf18/0x17d0 [ 191.848084][ T253] ip6_route_add+0x1c/0x140 [ 191.848084][ T253] addrconf_prefix_route+0x2a6/0x430 [ 191.848084][ T253] inet6_addr_add+0x4f8/0xa40 [ 191.848084][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 191.848084][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 191.848084][ T253] netlink_rcv_skb+0x130/0x360 [ 191.848084][ T253] netlink_unicast+0x449/0x710 [ 191.848084][ T253] netlink_sendmsg+0x723/0xbe0 [ 191.848084][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 191.848084][ T253] ___sys_sendmsg+0xee/0x170 [ 191.848084][ T253] __sys_sendmsg+0xcd/0x170 [ 191.848084][ T253] do_syscall_64+0xc6/0x1e0 [ 191.848084][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 191.848084][ T253] [ 191.850849][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 191.850849][ T253] netdev_get_by_index+0x5e/0x80 [ 191.850849][ T253] fib6_nh_init+0x3d8/0x1580 [ 191.850849][ T253] ip6_route_info_create+0xf18/0x17d0 [ 191.850849][ T253] addrconf_f6i_alloc+0x315/0x560 [ 191.850849][ T253] ipv6_add_addr+0x411/0x2000 [ 191.850849][ T253] inet6_addr_add+0x30e/0xa40 [ 191.850849][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 191.850849][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 191.850849][ T253] netlink_rcv_skb+0x130/0x360 [ 191.850849][ T253] netlink_unicast+0x449/0x710 [ 191.850849][ T253] netlink_sendmsg+0x723/0xbe0 [ 191.850849][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 191.850849][ T253] ___sys_sendmsg+0xee/0x170 [ 191.850849][ T253] __sys_sendmsg+0xcd/0x170 [ 191.850849][ T253] do_syscall_64+0xc6/0x1e0 [ 191.850849][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 191.850849][ T253] [ 191.853623][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 191.853623][ T253] netdev_get_by_index+0x5e/0x80 [ 191.853623][ T253] fib6_nh_init+0x3d8/0x1580 [ 191.853623][ T253] ip6_route_info_create+0xf18/0x17d0 [ 191.853623][ T253] ip6_route_add+0x1c/0x140 [ 191.853623][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 191.853623][ T253] addrconf_add_dev+0xe2/0x170 [ 191.853623][ T253] inet6_addr_add+0x12f/0xa40 [ 191.853623][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 191.853623][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 191.853623][ T253] netlink_rcv_skb+0x130/0x360 [ 191.853623][ T253] netlink_unicast+0x449/0x710 [ 191.853623][ T253] netlink_sendmsg+0x723/0xbe0 [ 191.853623][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 191.853623][ T253] ___sys_sendmsg+0xee/0x170 [ 191.853623][ T253] __sys_sendmsg+0xcd/0x170 [ 191.853623][ T253] do_syscall_64+0xc6/0x1e0 [ 191.853623][ T253] [ 191.856304][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 191.856304][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 191.856304][ T253] ipv6_find_idev+0x102/0x170 [ 191.856304][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 191.856304][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 191.856304][ T253] netlink_rcv_skb+0x130/0x360 [ 191.856304][ T253] netlink_unicast+0x449/0x710 [ 191.856304][ T253] netlink_sendmsg+0x723/0xbe0 [ 191.856304][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 191.856304][ T253] ___sys_sendmsg+0xee/0x170 [ 191.856304][ T253] __sys_sendmsg+0xcd/0x170 [ 191.856304][ T253] do_syscall_64+0xc6/0x1e0 [ 191.856304][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 191.856304][ T253] [ 191.858439][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 191.858439][ T253] neigh_parms_alloc+0x1e5/0x510 [ 191.858439][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 191.858439][ T253] ipv6_find_idev+0x102/0x170 [ 191.858439][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 191.858439][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 191.858439][ T253] netlink_rcv_skb+0x130/0x360 [ 191.858439][ T253] netlink_unicast+0x449/0x710 [ 191.858439][ T253] netlink_sendmsg+0x723/0xbe0 [ 191.858439][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 191.858439][ T253] ___sys_sendmsg+0xee/0x170 [ 191.858439][ T253] __sys_sendmsg+0xcd/0x170 [ 191.858439][ T253] do_syscall_64+0xc6/0x1e0 [ 191.858439][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 191.858439][ T253] [ 202.106285][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 202.106808][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 202.106808][ T253] dst_init+0x84/0x4a0 [ 202.106808][ T253] dst_alloc+0x97/0x150 [ 202.106808][ T253] ip6_dst_alloc+0x23/0x90 [ 202.106808][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 202.106808][ T253] ip6_pol_route+0x56f/0x840 [ 202.106808][ T253] fib6_rule_lookup+0x334/0x630 [ 202.106808][ T253] ip6_route_output_flags+0x259/0x480 [ 202.106808][ T253] inet6_rtm_getroute+0x980/0xf70 [ 202.106808][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 202.106808][ T253] netlink_rcv_skb+0x130/0x360 [ 202.106808][ T253] netlink_unicast+0x449/0x710 [ 202.106808][ T253] netlink_sendmsg+0x723/0xbe0 [ 202.106808][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 202.106808][ T253] ___sys_sendmsg+0xee/0x170 [ 202.106808][ T253] __sys_sendmsg+0xcd/0x170 [ 202.106808][ T253] do_syscall_64+0xc6/0x1e0 [ 202.106808][ T253] [ 202.109600][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 202.109600][ T253] netdev_get_by_index+0x5e/0x80 [ 202.109600][ T253] fib6_nh_init+0x3d8/0x1580 [ 202.109600][ T253] ip6_route_info_create+0xf18/0x17d0 [ 202.109600][ T253] addrconf_f6i_alloc+0x265/0x560 [ 202.109600][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 202.109600][ T253] addrconf_join_anycast+0x1c0/0x220 [ 202.109600][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 202.109600][ T253] addrconf_dad_completed+0x12b/0xe20 [ 202.109600][ T253] addrconf_dad_begin+0x310/0x670 [ 202.109600][ T253] addrconf_dad_work+0x10b/0xab0 [ 202.109600][ T253] process_one_work+0x84d/0x18a0 [ 202.109600][ T253] worker_thread+0x587/0xd30 [ 202.109600][ T253] kthread+0x28a/0x350 [ 202.109600][ T253] ret_from_fork+0x31/0x70 [ 202.109600][ T253] ret_from_fork_asm+0x1a/0x30 [ 202.109600][ T253] [ 202.112200][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 202.112200][ T253] netdev_get_by_index+0x5e/0x80 [ 202.112200][ T253] fib6_nh_init+0x3d8/0x1580 [ 202.112200][ T253] ip6_route_info_create+0xf18/0x17d0 [ 202.112200][ T253] ip6_route_add+0x1c/0x140 [ 202.112200][ T253] addrconf_prefix_route+0x2a6/0x430 [ 202.112200][ T253] inet6_addr_add+0x4f8/0xa40 [ 202.112200][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 202.112200][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 202.112200][ T253] netlink_rcv_skb+0x130/0x360 [ 202.112200][ T253] netlink_unicast+0x449/0x710 [ 202.112200][ T253] netlink_sendmsg+0x723/0xbe0 [ 202.112200][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 202.112200][ T253] ___sys_sendmsg+0xee/0x170 [ 202.112200][ T253] __sys_sendmsg+0xcd/0x170 [ 202.112200][ T253] do_syscall_64+0xc6/0x1e0 [ 202.112200][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 202.112200][ T253] [ 202.115068][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 202.115068][ T253] netdev_get_by_index+0x5e/0x80 [ 202.115068][ T253] fib6_nh_init+0x3d8/0x1580 [ 202.115068][ T253] ip6_route_info_create+0xf18/0x17d0 [ 202.115068][ T253] addrconf_f6i_alloc+0x315/0x560 [ 202.115068][ T253] ipv6_add_addr+0x411/0x2000 [ 202.115068][ T253] inet6_addr_add+0x30e/0xa40 [ 202.115068][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 202.115068][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 202.115068][ T253] netlink_rcv_skb+0x130/0x360 [ 202.115068][ T253] netlink_unicast+0x449/0x710 [ 202.115068][ T253] netlink_sendmsg+0x723/0xbe0 [ 202.115068][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 202.115068][ T253] ___sys_sendmsg+0xee/0x170 [ 202.115068][ T253] __sys_sendmsg+0xcd/0x170 [ 202.115068][ T253] do_syscall_64+0xc6/0x1e0 [ 202.115068][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 202.115068][ T253] [ 202.117927][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 202.117927][ T253] netdev_get_by_index+0x5e/0x80 [ 202.117927][ T253] fib6_nh_init+0x3d8/0x1580 [ 202.117927][ T253] ip6_route_info_create+0xf18/0x17d0 [ 202.117927][ T253] ip6_route_add+0x1c/0x140 [ 202.117927][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 202.117927][ T253] addrconf_add_dev+0xe2/0x170 [ 202.117927][ T253] inet6_addr_add+0x12f/0xa40 [ 202.117927][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 202.117927][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 202.117927][ T253] netlink_rcv_skb+0x130/0x360 [ 202.117927][ T253] netlink_unicast+0x449/0x710 [ 202.117927][ T253] netlink_sendmsg+0x723/0xbe0 [ 202.117927][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 202.117927][ T253] ___sys_sendmsg+0xee/0x170 [ 202.117927][ T253] __sys_sendmsg+0xcd/0x170 [ 202.117927][ T253] do_syscall_64+0xc6/0x1e0 [ 202.117927][ T253] [ 202.120709][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 202.120709][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 202.120709][ T253] ipv6_find_idev+0x102/0x170 [ 202.120709][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 202.120709][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 202.120709][ T253] netlink_rcv_skb+0x130/0x360 [ 202.120709][ T253] netlink_unicast+0x449/0x710 [ 202.120709][ T253] netlink_sendmsg+0x723/0xbe0 [ 202.120709][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 202.120709][ T253] ___sys_sendmsg+0xee/0x170 [ 202.120709][ T253] __sys_sendmsg+0xcd/0x170 [ 202.120709][ T253] do_syscall_64+0xc6/0x1e0 [ 202.120709][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 202.120709][ T253] [ 202.122867][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 202.122867][ T253] neigh_parms_alloc+0x1e5/0x510 [ 202.122867][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 202.122867][ T253] ipv6_find_idev+0x102/0x170 [ 202.122867][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 202.122867][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 202.122867][ T253] netlink_rcv_skb+0x130/0x360 [ 202.122867][ T253] netlink_unicast+0x449/0x710 [ 202.122867][ T253] netlink_sendmsg+0x723/0xbe0 [ 202.122867][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 202.122867][ T253] ___sys_sendmsg+0xee/0x170 [ 202.122867][ T253] __sys_sendmsg+0xcd/0x170 [ 202.122867][ T253] do_syscall_64+0xc6/0x1e0 [ 202.122867][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 202.122867][ T253] [ 212.290315][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 212.290910][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 212.290910][ T253] dst_init+0x84/0x4a0 [ 212.290910][ T253] dst_alloc+0x97/0x150 [ 212.290910][ T253] ip6_dst_alloc+0x23/0x90 [ 212.290910][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 212.290910][ T253] ip6_pol_route+0x56f/0x840 [ 212.290910][ T253] fib6_rule_lookup+0x334/0x630 [ 212.290910][ T253] ip6_route_output_flags+0x259/0x480 [ 212.290910][ T253] inet6_rtm_getroute+0x980/0xf70 [ 212.290910][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 212.290910][ T253] netlink_rcv_skb+0x130/0x360 [ 212.290910][ T253] netlink_unicast+0x449/0x710 [ 212.290910][ T253] netlink_sendmsg+0x723/0xbe0 [ 212.290910][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 212.290910][ T253] ___sys_sendmsg+0xee/0x170 [ 212.290910][ T253] __sys_sendmsg+0xcd/0x170 [ 212.290910][ T253] do_syscall_64+0xc6/0x1e0 [ 212.290910][ T253] [ 212.293556][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 212.293556][ T253] netdev_get_by_index+0x5e/0x80 [ 212.293556][ T253] fib6_nh_init+0x3d8/0x1580 [ 212.293556][ T253] ip6_route_info_create+0xf18/0x17d0 [ 212.293556][ T253] addrconf_f6i_alloc+0x265/0x560 [ 212.293556][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 212.293556][ T253] addrconf_join_anycast+0x1c0/0x220 [ 212.293556][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 212.293556][ T253] addrconf_dad_completed+0x12b/0xe20 [ 212.293556][ T253] addrconf_dad_begin+0x310/0x670 [ 212.293556][ T253] addrconf_dad_work+0x10b/0xab0 [ 212.293556][ T253] process_one_work+0x84d/0x18a0 [ 212.293556][ T253] worker_thread+0x587/0xd30 [ 212.293556][ T253] kthread+0x28a/0x350 [ 212.293556][ T253] ret_from_fork+0x31/0x70 [ 212.293556][ T253] ret_from_fork_asm+0x1a/0x30 [ 212.293556][ T253] [ 212.296142][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 212.296142][ T253] netdev_get_by_index+0x5e/0x80 [ 212.296142][ T253] fib6_nh_init+0x3d8/0x1580 [ 212.296142][ T253] ip6_route_info_create+0xf18/0x17d0 [ 212.296142][ T253] ip6_route_add+0x1c/0x140 [ 212.296142][ T253] addrconf_prefix_route+0x2a6/0x430 [ 212.296142][ T253] inet6_addr_add+0x4f8/0xa40 [ 212.296142][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 212.296142][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 212.296142][ T253] netlink_rcv_skb+0x130/0x360 [ 212.296142][ T253] netlink_unicast+0x449/0x710 [ 212.296142][ T253] netlink_sendmsg+0x723/0xbe0 [ 212.296142][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 212.296142][ T253] ___sys_sendmsg+0xee/0x170 [ 212.296142][ T253] __sys_sendmsg+0xcd/0x170 [ 212.296142][ T253] do_syscall_64+0xc6/0x1e0 [ 212.296142][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 212.296142][ T253] [ 212.299930][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 212.299930][ T253] netdev_get_by_index+0x5e/0x80 [ 212.299930][ T253] fib6_nh_init+0x3d8/0x1580 [ 212.299930][ T253] ip6_route_info_create+0xf18/0x17d0 [ 212.299930][ T253] addrconf_f6i_alloc+0x315/0x560 [ 212.299930][ T253] ipv6_add_addr+0x411/0x2000 [ 212.299930][ T253] inet6_addr_add+0x30e/0xa40 [ 212.299930][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 212.299930][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 212.299930][ T253] netlink_rcv_skb+0x130/0x360 [ 212.299930][ T253] netlink_unicast+0x449/0x710 [ 212.299930][ T253] netlink_sendmsg+0x723/0xbe0 [ 212.299930][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 212.299930][ T253] ___sys_sendmsg+0xee/0x170 [ 212.299930][ T253] __sys_sendmsg+0xcd/0x170 [ 212.299930][ T253] do_syscall_64+0xc6/0x1e0 [ 212.299930][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 212.299930][ T253] [ 212.303475][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 212.303475][ T253] netdev_get_by_index+0x5e/0x80 [ 212.303475][ T253] fib6_nh_init+0x3d8/0x1580 [ 212.303475][ T253] ip6_route_info_create+0xf18/0x17d0 [ 212.303475][ T253] ip6_route_add+0x1c/0x140 [ 212.303475][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 212.303475][ T253] addrconf_add_dev+0xe2/0x170 [ 212.303475][ T253] inet6_addr_add+0x12f/0xa40 [ 212.303475][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 212.303475][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 212.303475][ T253] netlink_rcv_skb+0x130/0x360 [ 212.303475][ T253] netlink_unicast+0x449/0x710 [ 212.303475][ T253] netlink_sendmsg+0x723/0xbe0 [ 212.303475][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 212.303475][ T253] ___sys_sendmsg+0xee/0x170 [ 212.303475][ T253] __sys_sendmsg+0xcd/0x170 [ 212.303475][ T253] do_syscall_64+0xc6/0x1e0 [ 212.303475][ T253] [ 212.307371][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 212.307371][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 212.307371][ T253] ipv6_find_idev+0x102/0x170 [ 212.307371][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 212.307371][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 212.307371][ T253] netlink_rcv_skb+0x130/0x360 [ 212.307371][ T253] netlink_unicast+0x449/0x710 [ 212.307371][ T253] netlink_sendmsg+0x723/0xbe0 [ 212.307371][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 212.307371][ T253] ___sys_sendmsg+0xee/0x170 [ 212.307371][ T253] __sys_sendmsg+0xcd/0x170 [ 212.307371][ T253] do_syscall_64+0xc6/0x1e0 [ 212.307371][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 212.307371][ T253] [ 212.310540][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 212.310540][ T253] neigh_parms_alloc+0x1e5/0x510 [ 212.310540][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 212.310540][ T253] ipv6_find_idev+0x102/0x170 [ 212.310540][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 212.310540][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 212.310540][ T253] netlink_rcv_skb+0x130/0x360 [ 212.310540][ T253] netlink_unicast+0x449/0x710 [ 212.310540][ T253] netlink_sendmsg+0x723/0xbe0 [ 212.310540][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 212.310540][ T253] ___sys_sendmsg+0xee/0x170 [ 212.310540][ T253] __sys_sendmsg+0xcd/0x170 [ 212.310540][ T253] do_syscall_64+0xc6/0x1e0 [ 212.310540][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 212.310540][ T253] [ 222.554272][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 222.554704][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 222.554704][ T253] dst_init+0x84/0x4a0 [ 222.554704][ T253] dst_alloc+0x97/0x150 [ 222.554704][ T253] ip6_dst_alloc+0x23/0x90 [ 222.554704][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 222.554704][ T253] ip6_pol_route+0x56f/0x840 [ 222.554704][ T253] fib6_rule_lookup+0x334/0x630 [ 222.554704][ T253] ip6_route_output_flags+0x259/0x480 [ 222.554704][ T253] inet6_rtm_getroute+0x980/0xf70 [ 222.554704][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 222.554704][ T253] netlink_rcv_skb+0x130/0x360 [ 222.554704][ T253] netlink_unicast+0x449/0x710 [ 222.554704][ T253] netlink_sendmsg+0x723/0xbe0 [ 222.554704][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 222.554704][ T253] ___sys_sendmsg+0xee/0x170 [ 222.554704][ T253] __sys_sendmsg+0xcd/0x170 [ 222.554704][ T253] do_syscall_64+0xc6/0x1e0 [ 222.554704][ T253] [ 222.557044][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 222.557044][ T253] netdev_get_by_index+0x5e/0x80 [ 222.557044][ T253] fib6_nh_init+0x3d8/0x1580 [ 222.557044][ T253] ip6_route_info_create+0xf18/0x17d0 [ 222.557044][ T253] addrconf_f6i_alloc+0x265/0x560 [ 222.557044][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 222.557044][ T253] addrconf_join_anycast+0x1c0/0x220 [ 222.557044][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 222.557044][ T253] addrconf_dad_completed+0x12b/0xe20 [ 222.557044][ T253] addrconf_dad_begin+0x310/0x670 [ 222.557044][ T253] addrconf_dad_work+0x10b/0xab0 [ 222.557044][ T253] process_one_work+0x84d/0x18a0 [ 222.557044][ T253] worker_thread+0x587/0xd30 [ 222.557044][ T253] kthread+0x28a/0x350 [ 222.557044][ T253] ret_from_fork+0x31/0x70 [ 222.557044][ T253] ret_from_fork_asm+0x1a/0x30 [ 222.557044][ T253] [ 222.559240][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 222.559240][ T253] netdev_get_by_index+0x5e/0x80 [ 222.559240][ T253] fib6_nh_init+0x3d8/0x1580 [ 222.559240][ T253] ip6_route_info_create+0xf18/0x17d0 [ 222.559240][ T253] ip6_route_add+0x1c/0x140 [ 222.559240][ T253] addrconf_prefix_route+0x2a6/0x430 [ 222.559240][ T253] inet6_addr_add+0x4f8/0xa40 [ 222.559240][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 222.559240][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 222.559240][ T253] netlink_rcv_skb+0x130/0x360 [ 222.559240][ T253] netlink_unicast+0x449/0x710 [ 222.559240][ T253] netlink_sendmsg+0x723/0xbe0 [ 222.559240][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 222.559240][ T253] ___sys_sendmsg+0xee/0x170 [ 222.559240][ T253] __sys_sendmsg+0xcd/0x170 [ 222.559240][ T253] do_syscall_64+0xc6/0x1e0 [ 222.559240][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 222.559240][ T253] [ 222.561515][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 222.561515][ T253] netdev_get_by_index+0x5e/0x80 [ 222.561515][ T253] fib6_nh_init+0x3d8/0x1580 [ 222.561515][ T253] ip6_route_info_create+0xf18/0x17d0 [ 222.561515][ T253] addrconf_f6i_alloc+0x315/0x560 [ 222.561515][ T253] ipv6_add_addr+0x411/0x2000 [ 222.561515][ T253] inet6_addr_add+0x30e/0xa40 [ 222.561515][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 222.561515][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 222.561515][ T253] netlink_rcv_skb+0x130/0x360 [ 222.561515][ T253] netlink_unicast+0x449/0x710 [ 222.561515][ T253] netlink_sendmsg+0x723/0xbe0 [ 222.561515][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 222.561515][ T253] ___sys_sendmsg+0xee/0x170 [ 222.561515][ T253] __sys_sendmsg+0xcd/0x170 [ 222.561515][ T253] do_syscall_64+0xc6/0x1e0 [ 222.561515][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 222.561515][ T253] [ 222.563768][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 222.563768][ T253] netdev_get_by_index+0x5e/0x80 [ 222.563768][ T253] fib6_nh_init+0x3d8/0x1580 [ 222.563768][ T253] ip6_route_info_create+0xf18/0x17d0 [ 222.563768][ T253] ip6_route_add+0x1c/0x140 [ 222.563768][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 222.563768][ T253] addrconf_add_dev+0xe2/0x170 [ 222.563768][ T253] inet6_addr_add+0x12f/0xa40 [ 222.563768][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 222.563768][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 222.563768][ T253] netlink_rcv_skb+0x130/0x360 [ 222.563768][ T253] netlink_unicast+0x449/0x710 [ 222.563768][ T253] netlink_sendmsg+0x723/0xbe0 [ 222.563768][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 222.563768][ T253] ___sys_sendmsg+0xee/0x170 [ 222.563768][ T253] __sys_sendmsg+0xcd/0x170 [ 222.563768][ T253] do_syscall_64+0xc6/0x1e0 [ 222.563768][ T253] [ 222.566005][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 222.566005][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 222.566005][ T253] ipv6_find_idev+0x102/0x170 [ 222.566005][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 222.566005][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 222.566005][ T253] netlink_rcv_skb+0x130/0x360 [ 222.566005][ T253] netlink_unicast+0x449/0x710 [ 222.566005][ T253] netlink_sendmsg+0x723/0xbe0 [ 222.566005][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 222.566005][ T253] ___sys_sendmsg+0xee/0x170 [ 222.566005][ T253] __sys_sendmsg+0xcd/0x170 [ 222.566005][ T253] do_syscall_64+0xc6/0x1e0 [ 222.566005][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 222.566005][ T253] [ 222.567737][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 222.567737][ T253] neigh_parms_alloc+0x1e5/0x510 [ 222.567737][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 222.567737][ T253] ipv6_find_idev+0x102/0x170 [ 222.567737][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 222.567737][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 222.567737][ T253] netlink_rcv_skb+0x130/0x360 [ 222.567737][ T253] netlink_unicast+0x449/0x710 [ 222.567737][ T253] netlink_sendmsg+0x723/0xbe0 [ 222.567737][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 222.567737][ T253] ___sys_sendmsg+0xee/0x170 [ 222.567737][ T253] __sys_sendmsg+0xcd/0x170 [ 222.567737][ T253] do_syscall_64+0xc6/0x1e0 [ 222.567737][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 222.567737][ T253] [ 232.810296][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 232.810904][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 232.810904][ T253] dst_init+0x84/0x4a0 [ 232.810904][ T253] dst_alloc+0x97/0x150 [ 232.810904][ T253] ip6_dst_alloc+0x23/0x90 [ 232.810904][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 232.810904][ T253] ip6_pol_route+0x56f/0x840 [ 232.810904][ T253] fib6_rule_lookup+0x334/0x630 [ 232.810904][ T253] ip6_route_output_flags+0x259/0x480 [ 232.810904][ T253] inet6_rtm_getroute+0x980/0xf70 [ 232.810904][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 232.810904][ T253] netlink_rcv_skb+0x130/0x360 [ 232.810904][ T253] netlink_unicast+0x449/0x710 [ 232.810904][ T253] netlink_sendmsg+0x723/0xbe0 [ 232.810904][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 232.810904][ T253] ___sys_sendmsg+0xee/0x170 [ 232.810904][ T253] __sys_sendmsg+0xcd/0x170 [ 232.810904][ T253] do_syscall_64+0xc6/0x1e0 [ 232.810904][ T253] [ 232.814481][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 232.814481][ T253] netdev_get_by_index+0x5e/0x80 [ 232.814481][ T253] fib6_nh_init+0x3d8/0x1580 [ 232.814481][ T253] ip6_route_info_create+0xf18/0x17d0 [ 232.814481][ T253] addrconf_f6i_alloc+0x265/0x560 [ 232.814481][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 232.814481][ T253] addrconf_join_anycast+0x1c0/0x220 [ 232.814481][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 232.814481][ T253] addrconf_dad_completed+0x12b/0xe20 [ 232.814481][ T253] addrconf_dad_begin+0x310/0x670 [ 232.814481][ T253] addrconf_dad_work+0x10b/0xab0 [ 232.814481][ T253] process_one_work+0x84d/0x18a0 [ 232.814481][ T253] worker_thread+0x587/0xd30 [ 232.814481][ T253] kthread+0x28a/0x350 [ 232.814481][ T253] ret_from_fork+0x31/0x70 [ 232.814481][ T253] ret_from_fork_asm+0x1a/0x30 [ 232.814481][ T253] [ 232.818011][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 232.818011][ T253] netdev_get_by_index+0x5e/0x80 [ 232.818011][ T253] fib6_nh_init+0x3d8/0x1580 [ 232.818011][ T253] ip6_route_info_create+0xf18/0x17d0 [ 232.818011][ T253] ip6_route_add+0x1c/0x140 [ 232.818011][ T253] addrconf_prefix_route+0x2a6/0x430 [ 232.818011][ T253] inet6_addr_add+0x4f8/0xa40 [ 232.818011][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 232.818011][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 232.818011][ T253] netlink_rcv_skb+0x130/0x360 [ 232.818011][ T253] netlink_unicast+0x449/0x710 [ 232.818011][ T253] netlink_sendmsg+0x723/0xbe0 [ 232.818011][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 232.818011][ T253] ___sys_sendmsg+0xee/0x170 [ 232.818011][ T253] __sys_sendmsg+0xcd/0x170 [ 232.818011][ T253] do_syscall_64+0xc6/0x1e0 [ 232.818011][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 232.818011][ T253] [ 232.821591][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 232.821591][ T253] netdev_get_by_index+0x5e/0x80 [ 232.821591][ T253] fib6_nh_init+0x3d8/0x1580 [ 232.821591][ T253] ip6_route_info_create+0xf18/0x17d0 [ 232.821591][ T253] addrconf_f6i_alloc+0x315/0x560 [ 232.821591][ T253] ipv6_add_addr+0x411/0x2000 [ 232.821591][ T253] inet6_addr_add+0x30e/0xa40 [ 232.821591][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 232.821591][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 232.821591][ T253] netlink_rcv_skb+0x130/0x360 [ 232.821591][ T253] netlink_unicast+0x449/0x710 [ 232.821591][ T253] netlink_sendmsg+0x723/0xbe0 [ 232.821591][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 232.821591][ T253] ___sys_sendmsg+0xee/0x170 [ 232.821591][ T253] __sys_sendmsg+0xcd/0x170 [ 232.821591][ T253] do_syscall_64+0xc6/0x1e0 [ 232.821591][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 232.821591][ T253] [ 232.825211][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 232.825211][ T253] netdev_get_by_index+0x5e/0x80 [ 232.825211][ T253] fib6_nh_init+0x3d8/0x1580 [ 232.825211][ T253] ip6_route_info_create+0xf18/0x17d0 [ 232.825211][ T253] ip6_route_add+0x1c/0x140 [ 232.825211][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 232.825211][ T253] addrconf_add_dev+0xe2/0x170 [ 232.825211][ T253] inet6_addr_add+0x12f/0xa40 [ 232.825211][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 232.825211][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 232.825211][ T253] netlink_rcv_skb+0x130/0x360 [ 232.825211][ T253] netlink_unicast+0x449/0x710 [ 232.825211][ T253] netlink_sendmsg+0x723/0xbe0 [ 232.825211][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 232.825211][ T253] ___sys_sendmsg+0xee/0x170 [ 232.825211][ T253] __sys_sendmsg+0xcd/0x170 [ 232.825211][ T253] do_syscall_64+0xc6/0x1e0 [ 232.825211][ T253] [ 232.828782][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 232.828782][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 232.828782][ T253] ipv6_find_idev+0x102/0x170 [ 232.828782][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 232.828782][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 232.828782][ T253] netlink_rcv_skb+0x130/0x360 [ 232.828782][ T253] netlink_unicast+0x449/0x710 [ 232.828782][ T253] netlink_sendmsg+0x723/0xbe0 [ 232.828782][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 232.828782][ T253] ___sys_sendmsg+0xee/0x170 [ 232.828782][ T253] __sys_sendmsg+0xcd/0x170 [ 232.828782][ T253] do_syscall_64+0xc6/0x1e0 [ 232.828782][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 232.828782][ T253] [ 232.831556][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 232.831556][ T253] neigh_parms_alloc+0x1e5/0x510 [ 232.831556][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 232.831556][ T253] ipv6_find_idev+0x102/0x170 [ 232.831556][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 232.831556][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 232.831556][ T253] netlink_rcv_skb+0x130/0x360 [ 232.831556][ T253] netlink_unicast+0x449/0x710 [ 232.831556][ T253] netlink_sendmsg+0x723/0xbe0 [ 232.831556][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 232.831556][ T253] ___sys_sendmsg+0xee/0x170 [ 232.831556][ T253] __sys_sendmsg+0xcd/0x170 [ 232.831556][ T253] do_syscall_64+0xc6/0x1e0 [ 232.831556][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 232.831556][ T253] [ 242.970285][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 242.970739][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 242.970739][ T253] dst_init+0x84/0x4a0 [ 242.970739][ T253] dst_alloc+0x97/0x150 [ 242.970739][ T253] ip6_dst_alloc+0x23/0x90 [ 242.970739][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 242.970739][ T253] ip6_pol_route+0x56f/0x840 [ 242.970739][ T253] fib6_rule_lookup+0x334/0x630 [ 242.970739][ T253] ip6_route_output_flags+0x259/0x480 [ 242.970739][ T253] inet6_rtm_getroute+0x980/0xf70 [ 242.970739][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 242.970739][ T253] netlink_rcv_skb+0x130/0x360 [ 242.970739][ T253] netlink_unicast+0x449/0x710 [ 242.970739][ T253] netlink_sendmsg+0x723/0xbe0 [ 242.970739][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 242.970739][ T253] ___sys_sendmsg+0xee/0x170 [ 242.970739][ T253] __sys_sendmsg+0xcd/0x170 [ 242.970739][ T253] do_syscall_64+0xc6/0x1e0 [ 242.970739][ T253] [ 242.973021][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 242.973021][ T253] netdev_get_by_index+0x5e/0x80 [ 242.973021][ T253] fib6_nh_init+0x3d8/0x1580 [ 242.973021][ T253] ip6_route_info_create+0xf18/0x17d0 [ 242.973021][ T253] addrconf_f6i_alloc+0x265/0x560 [ 242.973021][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 242.973021][ T253] addrconf_join_anycast+0x1c0/0x220 [ 242.973021][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 242.973021][ T253] addrconf_dad_completed+0x12b/0xe20 [ 242.973021][ T253] addrconf_dad_begin+0x310/0x670 [ 242.973021][ T253] addrconf_dad_work+0x10b/0xab0 [ 242.973021][ T253] process_one_work+0x84d/0x18a0 [ 242.973021][ T253] worker_thread+0x587/0xd30 [ 242.973021][ T253] kthread+0x28a/0x350 [ 242.973021][ T253] ret_from_fork+0x31/0x70 [ 242.973021][ T253] ret_from_fork_asm+0x1a/0x30 [ 242.973021][ T253] [ 242.975177][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 242.975177][ T253] netdev_get_by_index+0x5e/0x80 [ 242.975177][ T253] fib6_nh_init+0x3d8/0x1580 [ 242.975177][ T253] ip6_route_info_create+0xf18/0x17d0 [ 242.975177][ T253] ip6_route_add+0x1c/0x140 [ 242.975177][ T253] addrconf_prefix_route+0x2a6/0x430 [ 242.975177][ T253] inet6_addr_add+0x4f8/0xa40 [ 242.975177][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 242.975177][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 242.975177][ T253] netlink_rcv_skb+0x130/0x360 [ 242.975177][ T253] netlink_unicast+0x449/0x710 [ 242.975177][ T253] netlink_sendmsg+0x723/0xbe0 [ 242.975177][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 242.975177][ T253] ___sys_sendmsg+0xee/0x170 [ 242.975177][ T253] __sys_sendmsg+0xcd/0x170 [ 242.975177][ T253] do_syscall_64+0xc6/0x1e0 [ 242.975177][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 242.975177][ T253] [ 242.977445][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 242.977445][ T253] netdev_get_by_index+0x5e/0x80 [ 242.977445][ T253] fib6_nh_init+0x3d8/0x1580 [ 242.977445][ T253] ip6_route_info_create+0xf18/0x17d0 [ 242.977445][ T253] addrconf_f6i_alloc+0x315/0x560 [ 242.977445][ T253] ipv6_add_addr+0x411/0x2000 [ 242.977445][ T253] inet6_addr_add+0x30e/0xa40 [ 242.977445][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 242.977445][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 242.977445][ T253] netlink_rcv_skb+0x130/0x360 [ 242.977445][ T253] netlink_unicast+0x449/0x710 [ 242.977445][ T253] netlink_sendmsg+0x723/0xbe0 [ 242.977445][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 242.977445][ T253] ___sys_sendmsg+0xee/0x170 [ 242.977445][ T253] __sys_sendmsg+0xcd/0x170 [ 242.977445][ T253] do_syscall_64+0xc6/0x1e0 [ 242.977445][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 242.977445][ T253] [ 242.979748][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 242.979748][ T253] netdev_get_by_index+0x5e/0x80 [ 242.979748][ T253] fib6_nh_init+0x3d8/0x1580 [ 242.979748][ T253] ip6_route_info_create+0xf18/0x17d0 [ 242.979748][ T253] ip6_route_add+0x1c/0x140 [ 242.979748][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 242.979748][ T253] addrconf_add_dev+0xe2/0x170 [ 242.979748][ T253] inet6_addr_add+0x12f/0xa40 [ 242.979748][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 242.979748][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 242.979748][ T253] netlink_rcv_skb+0x130/0x360 [ 242.979748][ T253] netlink_unicast+0x449/0x710 [ 242.979748][ T253] netlink_sendmsg+0x723/0xbe0 [ 242.979748][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 242.979748][ T253] ___sys_sendmsg+0xee/0x170 [ 242.979748][ T253] __sys_sendmsg+0xcd/0x170 [ 242.979748][ T253] do_syscall_64+0xc6/0x1e0 [ 242.979748][ T253] [ 242.981991][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 242.981991][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 242.981991][ T253] ipv6_find_idev+0x102/0x170 [ 242.981991][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 242.981991][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 242.981991][ T253] netlink_rcv_skb+0x130/0x360 [ 242.981991][ T253] netlink_unicast+0x449/0x710 [ 242.981991][ T253] netlink_sendmsg+0x723/0xbe0 [ 242.981991][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 242.981991][ T253] ___sys_sendmsg+0xee/0x170 [ 242.981991][ T253] __sys_sendmsg+0xcd/0x170 [ 242.981991][ T253] do_syscall_64+0xc6/0x1e0 [ 242.981991][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 242.981991][ T253] [ 242.983763][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 242.983763][ T253] neigh_parms_alloc+0x1e5/0x510 [ 242.983763][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 242.983763][ T253] ipv6_find_idev+0x102/0x170 [ 242.983763][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 242.983763][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 242.983763][ T253] netlink_rcv_skb+0x130/0x360 [ 242.983763][ T253] netlink_unicast+0x449/0x710 [ 242.983763][ T253] netlink_sendmsg+0x723/0xbe0 [ 242.983763][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 242.983763][ T253] ___sys_sendmsg+0xee/0x170 [ 242.983763][ T253] __sys_sendmsg+0xcd/0x170 [ 242.983763][ T253] do_syscall_64+0xc6/0x1e0 [ 242.983763][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 242.983763][ T253] [ 252.994280][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 252.994711][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 252.994711][ T253] dst_init+0x84/0x4a0 [ 252.994711][ T253] dst_alloc+0x97/0x150 [ 252.994711][ T253] ip6_dst_alloc+0x23/0x90 [ 252.994711][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 252.994711][ T253] ip6_pol_route+0x56f/0x840 [ 252.994711][ T253] fib6_rule_lookup+0x334/0x630 [ 252.994711][ T253] ip6_route_output_flags+0x259/0x480 [ 252.994711][ T253] inet6_rtm_getroute+0x980/0xf70 [ 252.994711][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 252.994711][ T253] netlink_rcv_skb+0x130/0x360 [ 252.994711][ T253] netlink_unicast+0x449/0x710 [ 252.994711][ T253] netlink_sendmsg+0x723/0xbe0 [ 252.994711][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 252.994711][ T253] ___sys_sendmsg+0xee/0x170 [ 252.994711][ T253] __sys_sendmsg+0xcd/0x170 [ 252.994711][ T253] do_syscall_64+0xc6/0x1e0 [ 252.994711][ T253] [ 252.996925][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 252.996925][ T253] netdev_get_by_index+0x5e/0x80 [ 252.996925][ T253] fib6_nh_init+0x3d8/0x1580 [ 252.996925][ T253] ip6_route_info_create+0xf18/0x17d0 [ 252.996925][ T253] addrconf_f6i_alloc+0x265/0x560 [ 252.996925][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 252.996925][ T253] addrconf_join_anycast+0x1c0/0x220 [ 252.996925][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 252.996925][ T253] addrconf_dad_completed+0x12b/0xe20 [ 252.996925][ T253] addrconf_dad_begin+0x310/0x670 [ 252.996925][ T253] addrconf_dad_work+0x10b/0xab0 [ 252.996925][ T253] process_one_work+0x84d/0x18a0 [ 252.996925][ T253] worker_thread+0x587/0xd30 [ 252.996925][ T253] kthread+0x28a/0x350 [ 252.996925][ T253] ret_from_fork+0x31/0x70 [ 252.996925][ T253] ret_from_fork_asm+0x1a/0x30 [ 252.996925][ T253] [ 252.999103][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 252.999103][ T253] netdev_get_by_index+0x5e/0x80 [ 252.999103][ T253] fib6_nh_init+0x3d8/0x1580 [ 252.999103][ T253] ip6_route_info_create+0xf18/0x17d0 [ 252.999103][ T253] ip6_route_add+0x1c/0x140 [ 252.999103][ T253] addrconf_prefix_route+0x2a6/0x430 [ 252.999103][ T253] inet6_addr_add+0x4f8/0xa40 [ 252.999103][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 252.999103][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 252.999103][ T253] netlink_rcv_skb+0x130/0x360 [ 252.999103][ T253] netlink_unicast+0x449/0x710 [ 252.999103][ T253] netlink_sendmsg+0x723/0xbe0 [ 252.999103][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 252.999103][ T253] ___sys_sendmsg+0xee/0x170 [ 252.999103][ T253] __sys_sendmsg+0xcd/0x170 [ 252.999103][ T253] do_syscall_64+0xc6/0x1e0 [ 252.999103][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 252.999103][ T253] [ 253.001381][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 253.001381][ T253] netdev_get_by_index+0x5e/0x80 [ 253.001381][ T253] fib6_nh_init+0x3d8/0x1580 [ 253.001381][ T253] ip6_route_info_create+0xf18/0x17d0 [ 253.001381][ T253] addrconf_f6i_alloc+0x315/0x560 [ 253.001381][ T253] ipv6_add_addr+0x411/0x2000 [ 253.001381][ T253] inet6_addr_add+0x30e/0xa40 [ 253.001381][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 253.001381][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 253.001381][ T253] netlink_rcv_skb+0x130/0x360 [ 253.001381][ T253] netlink_unicast+0x449/0x710 [ 253.001381][ T253] netlink_sendmsg+0x723/0xbe0 [ 253.001381][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 253.001381][ T253] ___sys_sendmsg+0xee/0x170 [ 253.001381][ T253] __sys_sendmsg+0xcd/0x170 [ 253.001381][ T253] do_syscall_64+0xc6/0x1e0 [ 253.001381][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 253.001381][ T253] [ 253.003750][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 253.003750][ T253] netdev_get_by_index+0x5e/0x80 [ 253.003750][ T253] fib6_nh_init+0x3d8/0x1580 [ 253.003750][ T253] ip6_route_info_create+0xf18/0x17d0 [ 253.003750][ T253] ip6_route_add+0x1c/0x140 [ 253.003750][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 253.003750][ T253] addrconf_add_dev+0xe2/0x170 [ 253.003750][ T253] inet6_addr_add+0x12f/0xa40 [ 253.003750][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 253.003750][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 253.003750][ T253] netlink_rcv_skb+0x130/0x360 [ 253.003750][ T253] netlink_unicast+0x449/0x710 [ 253.003750][ T253] netlink_sendmsg+0x723/0xbe0 [ 253.003750][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 253.003750][ T253] ___sys_sendmsg+0xee/0x170 [ 253.003750][ T253] __sys_sendmsg+0xcd/0x170 [ 253.003750][ T253] do_syscall_64+0xc6/0x1e0 [ 253.003750][ T253] [ 253.005962][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 253.005962][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 253.005962][ T253] ipv6_find_idev+0x102/0x170 [ 253.005962][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 253.005962][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 253.005962][ T253] netlink_rcv_skb+0x130/0x360 [ 253.005962][ T253] netlink_unicast+0x449/0x710 [ 253.005962][ T253] netlink_sendmsg+0x723/0xbe0 [ 253.005962][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 253.005962][ T253] ___sys_sendmsg+0xee/0x170 [ 253.005962][ T253] __sys_sendmsg+0xcd/0x170 [ 253.005962][ T253] do_syscall_64+0xc6/0x1e0 [ 253.005962][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 253.005962][ T253] [ 253.007734][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 253.007734][ T253] neigh_parms_alloc+0x1e5/0x510 [ 253.007734][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 253.007734][ T253] ipv6_find_idev+0x102/0x170 [ 253.007734][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 253.007734][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 253.007734][ T253] netlink_rcv_skb+0x130/0x360 [ 253.007734][ T253] netlink_unicast+0x449/0x710 [ 253.007734][ T253] netlink_sendmsg+0x723/0xbe0 [ 253.007734][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 253.007734][ T253] ___sys_sendmsg+0xee/0x170 [ 253.007734][ T253] __sys_sendmsg+0xcd/0x170 [ 253.007734][ T253] do_syscall_64+0xc6/0x1e0 [ 253.007734][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 253.007734][ T253] [ 263.074296][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 263.074884][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 263.074884][ T253] dst_init+0x84/0x4a0 [ 263.074884][ T253] dst_alloc+0x97/0x150 [ 263.074884][ T253] ip6_dst_alloc+0x23/0x90 [ 263.074884][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 263.074884][ T253] ip6_pol_route+0x56f/0x840 [ 263.074884][ T253] fib6_rule_lookup+0x334/0x630 [ 263.074884][ T253] ip6_route_output_flags+0x259/0x480 [ 263.074884][ T253] inet6_rtm_getroute+0x980/0xf70 [ 263.074884][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 263.074884][ T253] netlink_rcv_skb+0x130/0x360 [ 263.074884][ T253] netlink_unicast+0x449/0x710 [ 263.074884][ T253] netlink_sendmsg+0x723/0xbe0 [ 263.074884][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 263.074884][ T253] ___sys_sendmsg+0xee/0x170 [ 263.074884][ T253] __sys_sendmsg+0xcd/0x170 [ 263.074884][ T253] do_syscall_64+0xc6/0x1e0 [ 263.074884][ T253] [ 263.078376][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 263.078376][ T253] netdev_get_by_index+0x5e/0x80 [ 263.078376][ T253] fib6_nh_init+0x3d8/0x1580 [ 263.078376][ T253] ip6_route_info_create+0xf18/0x17d0 [ 263.078376][ T253] addrconf_f6i_alloc+0x265/0x560 [ 263.078376][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 263.078376][ T253] addrconf_join_anycast+0x1c0/0x220 [ 263.078376][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 263.078376][ T253] addrconf_dad_completed+0x12b/0xe20 [ 263.078376][ T253] addrconf_dad_begin+0x310/0x670 [ 263.078376][ T253] addrconf_dad_work+0x10b/0xab0 [ 263.078376][ T253] process_one_work+0x84d/0x18a0 [ 263.078376][ T253] worker_thread+0x587/0xd30 [ 263.078376][ T253] kthread+0x28a/0x350 [ 263.078376][ T253] ret_from_fork+0x31/0x70 [ 263.078376][ T253] ret_from_fork_asm+0x1a/0x30 [ 263.078376][ T253] [ 263.081748][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 263.081748][ T253] netdev_get_by_index+0x5e/0x80 [ 263.081748][ T253] fib6_nh_init+0x3d8/0x1580 [ 263.081748][ T253] ip6_route_info_create+0xf18/0x17d0 [ 263.081748][ T253] ip6_route_add+0x1c/0x140 [ 263.081748][ T253] addrconf_prefix_route+0x2a6/0x430 [ 263.081748][ T253] inet6_addr_add+0x4f8/0xa40 [ 263.081748][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 263.081748][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 263.081748][ T253] netlink_rcv_skb+0x130/0x360 [ 263.081748][ T253] netlink_unicast+0x449/0x710 [ 263.081748][ T253] netlink_sendmsg+0x723/0xbe0 [ 263.081748][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 263.081748][ T253] ___sys_sendmsg+0xee/0x170 [ 263.081748][ T253] __sys_sendmsg+0xcd/0x170 [ 263.081748][ T253] do_syscall_64+0xc6/0x1e0 [ 263.081748][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 263.081748][ T253] [ 263.085294][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 263.085294][ T253] netdev_get_by_index+0x5e/0x80 [ 263.085294][ T253] fib6_nh_init+0x3d8/0x1580 [ 263.085294][ T253] ip6_route_info_create+0xf18/0x17d0 [ 263.085294][ T253] addrconf_f6i_alloc+0x315/0x560 [ 263.085294][ T253] ipv6_add_addr+0x411/0x2000 [ 263.085294][ T253] inet6_addr_add+0x30e/0xa40 [ 263.085294][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 263.085294][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 263.085294][ T253] netlink_rcv_skb+0x130/0x360 [ 263.085294][ T253] netlink_unicast+0x449/0x710 [ 263.085294][ T253] netlink_sendmsg+0x723/0xbe0 [ 263.085294][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 263.085294][ T253] ___sys_sendmsg+0xee/0x170 [ 263.085294][ T253] __sys_sendmsg+0xcd/0x170 [ 263.085294][ T253] do_syscall_64+0xc6/0x1e0 [ 263.085294][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 263.085294][ T253] [ 263.088871][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 263.088871][ T253] netdev_get_by_index+0x5e/0x80 [ 263.088871][ T253] fib6_nh_init+0x3d8/0x1580 [ 263.088871][ T253] ip6_route_info_create+0xf18/0x17d0 [ 263.088871][ T253] ip6_route_add+0x1c/0x140 [ 263.088871][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 263.088871][ T253] addrconf_add_dev+0xe2/0x170 [ 263.088871][ T253] inet6_addr_add+0x12f/0xa40 [ 263.088871][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 263.088871][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 263.088871][ T253] netlink_rcv_skb+0x130/0x360 [ 263.088871][ T253] netlink_unicast+0x449/0x710 [ 263.088871][ T253] netlink_sendmsg+0x723/0xbe0 [ 263.088871][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 263.088871][ T253] ___sys_sendmsg+0xee/0x170 [ 263.088871][ T253] __sys_sendmsg+0xcd/0x170 [ 263.088871][ T253] do_syscall_64+0xc6/0x1e0 [ 263.088871][ T253] [ 263.092559][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 263.092559][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 263.092559][ T253] ipv6_find_idev+0x102/0x170 [ 263.092559][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 263.092559][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 263.092559][ T253] netlink_rcv_skb+0x130/0x360 [ 263.092559][ T253] netlink_unicast+0x449/0x710 [ 263.092559][ T253] netlink_sendmsg+0x723/0xbe0 [ 263.092559][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 263.092559][ T253] ___sys_sendmsg+0xee/0x170 [ 263.092559][ T253] __sys_sendmsg+0xcd/0x170 [ 263.092559][ T253] do_syscall_64+0xc6/0x1e0 [ 263.092559][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 263.092559][ T253] [ 263.095282][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 263.095282][ T253] neigh_parms_alloc+0x1e5/0x510 [ 263.095282][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 263.095282][ T253] ipv6_find_idev+0x102/0x170 [ 263.095282][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 263.095282][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 263.095282][ T253] netlink_rcv_skb+0x130/0x360 [ 263.095282][ T253] netlink_unicast+0x449/0x710 [ 263.095282][ T253] netlink_sendmsg+0x723/0xbe0 [ 263.095282][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 263.095282][ T253] ___sys_sendmsg+0xee/0x170 [ 263.095282][ T253] __sys_sendmsg+0xcd/0x170 [ 263.095282][ T253] do_syscall_64+0xc6/0x1e0 [ 263.095282][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 263.095282][ T253] [ 273.130288][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 273.130801][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 273.130801][ T253] dst_init+0x84/0x4a0 [ 273.130801][ T253] dst_alloc+0x97/0x150 [ 273.130801][ T253] ip6_dst_alloc+0x23/0x90 [ 273.130801][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 273.130801][ T253] ip6_pol_route+0x56f/0x840 [ 273.130801][ T253] fib6_rule_lookup+0x334/0x630 [ 273.130801][ T253] ip6_route_output_flags+0x259/0x480 [ 273.130801][ T253] inet6_rtm_getroute+0x980/0xf70 [ 273.130801][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 273.130801][ T253] netlink_rcv_skb+0x130/0x360 [ 273.130801][ T253] netlink_unicast+0x449/0x710 [ 273.130801][ T253] netlink_sendmsg+0x723/0xbe0 [ 273.130801][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 273.130801][ T253] ___sys_sendmsg+0xee/0x170 [ 273.130801][ T253] __sys_sendmsg+0xcd/0x170 [ 273.130801][ T253] do_syscall_64+0xc6/0x1e0 [ 273.130801][ T253] [ 273.132998][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 273.132998][ T253] netdev_get_by_index+0x5e/0x80 [ 273.132998][ T253] fib6_nh_init+0x3d8/0x1580 [ 273.132998][ T253] ip6_route_info_create+0xf18/0x17d0 [ 273.132998][ T253] addrconf_f6i_alloc+0x265/0x560 [ 273.132998][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 273.132998][ T253] addrconf_join_anycast+0x1c0/0x220 [ 273.132998][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 273.132998][ T253] addrconf_dad_completed+0x12b/0xe20 [ 273.132998][ T253] addrconf_dad_begin+0x310/0x670 [ 273.132998][ T253] addrconf_dad_work+0x10b/0xab0 [ 273.132998][ T253] process_one_work+0x84d/0x18a0 [ 273.132998][ T253] worker_thread+0x587/0xd30 [ 273.132998][ T253] kthread+0x28a/0x350 [ 273.132998][ T253] ret_from_fork+0x31/0x70 [ 273.132998][ T253] ret_from_fork_asm+0x1a/0x30 [ 273.132998][ T253] [ 273.135159][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 273.135159][ T253] netdev_get_by_index+0x5e/0x80 [ 273.135159][ T253] fib6_nh_init+0x3d8/0x1580 [ 273.135159][ T253] ip6_route_info_create+0xf18/0x17d0 [ 273.135159][ T253] ip6_route_add+0x1c/0x140 [ 273.135159][ T253] addrconf_prefix_route+0x2a6/0x430 [ 273.135159][ T253] inet6_addr_add+0x4f8/0xa40 [ 273.135159][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 273.135159][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 273.135159][ T253] netlink_rcv_skb+0x130/0x360 [ 273.135159][ T253] netlink_unicast+0x449/0x710 [ 273.135159][ T253] netlink_sendmsg+0x723/0xbe0 [ 273.135159][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 273.135159][ T253] ___sys_sendmsg+0xee/0x170 [ 273.135159][ T253] __sys_sendmsg+0xcd/0x170 [ 273.135159][ T253] do_syscall_64+0xc6/0x1e0 [ 273.135159][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 273.135159][ T253] [ 273.137395][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 273.137395][ T253] netdev_get_by_index+0x5e/0x80 [ 273.137395][ T253] fib6_nh_init+0x3d8/0x1580 [ 273.137395][ T253] ip6_route_info_create+0xf18/0x17d0 [ 273.137395][ T253] addrconf_f6i_alloc+0x315/0x560 [ 273.137395][ T253] ipv6_add_addr+0x411/0x2000 [ 273.137395][ T253] inet6_addr_add+0x30e/0xa40 [ 273.137395][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 273.137395][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 273.137395][ T253] netlink_rcv_skb+0x130/0x360 [ 273.137395][ T253] netlink_unicast+0x449/0x710 [ 273.137395][ T253] netlink_sendmsg+0x723/0xbe0 [ 273.137395][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 273.137395][ T253] ___sys_sendmsg+0xee/0x170 [ 273.137395][ T253] __sys_sendmsg+0xcd/0x170 [ 273.137395][ T253] do_syscall_64+0xc6/0x1e0 [ 273.137395][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 273.137395][ T253] [ 273.139657][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 273.139657][ T253] netdev_get_by_index+0x5e/0x80 [ 273.139657][ T253] fib6_nh_init+0x3d8/0x1580 [ 273.139657][ T253] ip6_route_info_create+0xf18/0x17d0 [ 273.139657][ T253] ip6_route_add+0x1c/0x140 [ 273.139657][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 273.139657][ T253] addrconf_add_dev+0xe2/0x170 [ 273.139657][ T253] inet6_addr_add+0x12f/0xa40 [ 273.139657][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 273.139657][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 273.139657][ T253] netlink_rcv_skb+0x130/0x360 [ 273.139657][ T253] netlink_unicast+0x449/0x710 [ 273.139657][ T253] netlink_sendmsg+0x723/0xbe0 [ 273.139657][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 273.139657][ T253] ___sys_sendmsg+0xee/0x170 [ 273.139657][ T253] __sys_sendmsg+0xcd/0x170 [ 273.139657][ T253] do_syscall_64+0xc6/0x1e0 [ 273.139657][ T253] [ 273.141855][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 273.141855][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 273.141855][ T253] ipv6_find_idev+0x102/0x170 [ 273.141855][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 273.141855][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 273.141855][ T253] netlink_rcv_skb+0x130/0x360 [ 273.141855][ T253] netlink_unicast+0x449/0x710 [ 273.141855][ T253] netlink_sendmsg+0x723/0xbe0 [ 273.141855][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 273.141855][ T253] ___sys_sendmsg+0xee/0x170 [ 273.141855][ T253] __sys_sendmsg+0xcd/0x170 [ 273.141855][ T253] do_syscall_64+0xc6/0x1e0 [ 273.141855][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 273.141855][ T253] [ 273.143578][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 273.143578][ T253] neigh_parms_alloc+0x1e5/0x510 [ 273.143578][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 273.143578][ T253] ipv6_find_idev+0x102/0x170 [ 273.143578][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 273.143578][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 273.143578][ T253] netlink_rcv_skb+0x130/0x360 [ 273.143578][ T253] netlink_unicast+0x449/0x710 [ 273.143578][ T253] netlink_sendmsg+0x723/0xbe0 [ 273.143578][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 273.143578][ T253] ___sys_sendmsg+0xee/0x170 [ 273.143578][ T253] __sys_sendmsg+0xcd/0x170 [ 273.143578][ T253] do_syscall_64+0xc6/0x1e0 [ 273.143578][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 273.143578][ T253] [ 283.386320][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 283.386763][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 283.386763][ T253] dst_init+0x84/0x4a0 [ 283.386763][ T253] dst_alloc+0x97/0x150 [ 283.386763][ T253] ip6_dst_alloc+0x23/0x90 [ 283.386763][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 283.386763][ T253] ip6_pol_route+0x56f/0x840 [ 283.386763][ T253] fib6_rule_lookup+0x334/0x630 [ 283.386763][ T253] ip6_route_output_flags+0x259/0x480 [ 283.386763][ T253] inet6_rtm_getroute+0x980/0xf70 [ 283.386763][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 283.386763][ T253] netlink_rcv_skb+0x130/0x360 [ 283.386763][ T253] netlink_unicast+0x449/0x710 [ 283.386763][ T253] netlink_sendmsg+0x723/0xbe0 [ 283.386763][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 283.386763][ T253] ___sys_sendmsg+0xee/0x170 [ 283.386763][ T253] __sys_sendmsg+0xcd/0x170 [ 283.386763][ T253] do_syscall_64+0xc6/0x1e0 [ 283.386763][ T253] [ 283.388978][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 283.388978][ T253] netdev_get_by_index+0x5e/0x80 [ 283.388978][ T253] fib6_nh_init+0x3d8/0x1580 [ 283.388978][ T253] ip6_route_info_create+0xf18/0x17d0 [ 283.388978][ T253] addrconf_f6i_alloc+0x265/0x560 [ 283.388978][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 283.388978][ T253] addrconf_join_anycast+0x1c0/0x220 [ 283.388978][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 283.388978][ T253] addrconf_dad_completed+0x12b/0xe20 [ 283.388978][ T253] addrconf_dad_begin+0x310/0x670 [ 283.388978][ T253] addrconf_dad_work+0x10b/0xab0 [ 283.388978][ T253] process_one_work+0x84d/0x18a0 [ 283.388978][ T253] worker_thread+0x587/0xd30 [ 283.388978][ T253] kthread+0x28a/0x350 [ 283.388978][ T253] ret_from_fork+0x31/0x70 [ 283.388978][ T253] ret_from_fork_asm+0x1a/0x30 [ 283.388978][ T253] [ 283.391136][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 283.391136][ T253] netdev_get_by_index+0x5e/0x80 [ 283.391136][ T253] fib6_nh_init+0x3d8/0x1580 [ 283.391136][ T253] ip6_route_info_create+0xf18/0x17d0 [ 283.391136][ T253] ip6_route_add+0x1c/0x140 [ 283.391136][ T253] addrconf_prefix_route+0x2a6/0x430 [ 283.391136][ T253] inet6_addr_add+0x4f8/0xa40 [ 283.391136][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 283.391136][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 283.391136][ T253] netlink_rcv_skb+0x130/0x360 [ 283.391136][ T253] netlink_unicast+0x449/0x710 [ 283.391136][ T253] netlink_sendmsg+0x723/0xbe0 [ 283.391136][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 283.391136][ T253] ___sys_sendmsg+0xee/0x170 [ 283.391136][ T253] __sys_sendmsg+0xcd/0x170 [ 283.391136][ T253] do_syscall_64+0xc6/0x1e0 [ 283.391136][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 283.391136][ T253] [ 283.393408][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 283.393408][ T253] netdev_get_by_index+0x5e/0x80 [ 283.393408][ T253] fib6_nh_init+0x3d8/0x1580 [ 283.393408][ T253] ip6_route_info_create+0xf18/0x17d0 [ 283.393408][ T253] addrconf_f6i_alloc+0x315/0x560 [ 283.393408][ T253] ipv6_add_addr+0x411/0x2000 [ 283.393408][ T253] inet6_addr_add+0x30e/0xa40 [ 283.393408][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 283.393408][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 283.393408][ T253] netlink_rcv_skb+0x130/0x360 [ 283.393408][ T253] netlink_unicast+0x449/0x710 [ 283.393408][ T253] netlink_sendmsg+0x723/0xbe0 [ 283.393408][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 283.393408][ T253] ___sys_sendmsg+0xee/0x170 [ 283.393408][ T253] __sys_sendmsg+0xcd/0x170 [ 283.393408][ T253] do_syscall_64+0xc6/0x1e0 [ 283.393408][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 283.393408][ T253] [ 283.395696][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 283.395696][ T253] netdev_get_by_index+0x5e/0x80 [ 283.395696][ T253] fib6_nh_init+0x3d8/0x1580 [ 283.395696][ T253] ip6_route_info_create+0xf18/0x17d0 [ 283.395696][ T253] ip6_route_add+0x1c/0x140 [ 283.395696][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 283.395696][ T253] addrconf_add_dev+0xe2/0x170 [ 283.395696][ T253] inet6_addr_add+0x12f/0xa40 [ 283.395696][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 283.395696][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 283.395696][ T253] netlink_rcv_skb+0x130/0x360 [ 283.395696][ T253] netlink_unicast+0x449/0x710 [ 283.395696][ T253] netlink_sendmsg+0x723/0xbe0 [ 283.395696][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 283.395696][ T253] ___sys_sendmsg+0xee/0x170 [ 283.395696][ T253] __sys_sendmsg+0xcd/0x170 [ 283.395696][ T253] do_syscall_64+0xc6/0x1e0 [ 283.395696][ T253] [ 283.397965][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 283.397965][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 283.397965][ T253] ipv6_find_idev+0x102/0x170 [ 283.397965][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 283.397965][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 283.397965][ T253] netlink_rcv_skb+0x130/0x360 [ 283.397965][ T253] netlink_unicast+0x449/0x710 [ 283.397965][ T253] netlink_sendmsg+0x723/0xbe0 [ 283.397965][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 283.397965][ T253] ___sys_sendmsg+0xee/0x170 [ 283.397965][ T253] __sys_sendmsg+0xcd/0x170 [ 283.397965][ T253] do_syscall_64+0xc6/0x1e0 [ 283.397965][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 283.397965][ T253] [ 283.399715][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 283.399715][ T253] neigh_parms_alloc+0x1e5/0x510 [ 283.399715][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 283.399715][ T253] ipv6_find_idev+0x102/0x170 [ 283.399715][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 283.399715][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 283.399715][ T253] netlink_rcv_skb+0x130/0x360 [ 283.399715][ T253] netlink_unicast+0x449/0x710 [ 283.399715][ T253] netlink_sendmsg+0x723/0xbe0 [ 283.399715][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 283.399715][ T253] ___sys_sendmsg+0xee/0x170 [ 283.399715][ T253] __sys_sendmsg+0xcd/0x170 [ 283.399715][ T253] do_syscall_64+0xc6/0x1e0 [ 283.399715][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 283.399715][ T253] [ 293.642275][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 293.642753][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 293.642753][ T253] dst_init+0x84/0x4a0 [ 293.642753][ T253] dst_alloc+0x97/0x150 [ 293.642753][ T253] ip6_dst_alloc+0x23/0x90 [ 293.642753][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 293.642753][ T253] ip6_pol_route+0x56f/0x840 [ 293.642753][ T253] fib6_rule_lookup+0x334/0x630 [ 293.642753][ T253] ip6_route_output_flags+0x259/0x480 [ 293.642753][ T253] inet6_rtm_getroute+0x980/0xf70 [ 293.642753][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 293.642753][ T253] netlink_rcv_skb+0x130/0x360 [ 293.642753][ T253] netlink_unicast+0x449/0x710 [ 293.642753][ T253] netlink_sendmsg+0x723/0xbe0 [ 293.642753][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 293.642753][ T253] ___sys_sendmsg+0xee/0x170 [ 293.642753][ T253] __sys_sendmsg+0xcd/0x170 [ 293.642753][ T253] do_syscall_64+0xc6/0x1e0 [ 293.642753][ T253] [ 293.645405][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 293.645405][ T253] netdev_get_by_index+0x5e/0x80 [ 293.645405][ T253] fib6_nh_init+0x3d8/0x1580 [ 293.645405][ T253] ip6_route_info_create+0xf18/0x17d0 [ 293.645405][ T253] addrconf_f6i_alloc+0x265/0x560 [ 293.645405][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 293.645405][ T253] addrconf_join_anycast+0x1c0/0x220 [ 293.645405][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 293.645405][ T253] addrconf_dad_completed+0x12b/0xe20 [ 293.645405][ T253] addrconf_dad_begin+0x310/0x670 [ 293.645405][ T253] addrconf_dad_work+0x10b/0xab0 [ 293.645405][ T253] process_one_work+0x84d/0x18a0 [ 293.645405][ T253] worker_thread+0x587/0xd30 [ 293.645405][ T253] kthread+0x28a/0x350 [ 293.645405][ T253] ret_from_fork+0x31/0x70 [ 293.645405][ T253] ret_from_fork_asm+0x1a/0x30 [ 293.645405][ T253] [ 293.648020][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 293.648020][ T253] netdev_get_by_index+0x5e/0x80 [ 293.648020][ T253] fib6_nh_init+0x3d8/0x1580 [ 293.648020][ T253] ip6_route_info_create+0xf18/0x17d0 [ 293.648020][ T253] ip6_route_add+0x1c/0x140 [ 293.648020][ T253] addrconf_prefix_route+0x2a6/0x430 [ 293.648020][ T253] inet6_addr_add+0x4f8/0xa40 [ 293.648020][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 293.648020][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 293.648020][ T253] netlink_rcv_skb+0x130/0x360 [ 293.648020][ T253] netlink_unicast+0x449/0x710 [ 293.648020][ T253] netlink_sendmsg+0x723/0xbe0 [ 293.648020][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 293.648020][ T253] ___sys_sendmsg+0xee/0x170 [ 293.648020][ T253] __sys_sendmsg+0xcd/0x170 [ 293.648020][ T253] do_syscall_64+0xc6/0x1e0 [ 293.648020][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 293.648020][ T253] [ 293.650745][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 293.650745][ T253] netdev_get_by_index+0x5e/0x80 [ 293.650745][ T253] fib6_nh_init+0x3d8/0x1580 [ 293.650745][ T253] ip6_route_info_create+0xf18/0x17d0 [ 293.650745][ T253] addrconf_f6i_alloc+0x315/0x560 [ 293.650745][ T253] ipv6_add_addr+0x411/0x2000 [ 293.650745][ T253] inet6_addr_add+0x30e/0xa40 [ 293.650745][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 293.650745][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 293.650745][ T253] netlink_rcv_skb+0x130/0x360 [ 293.650745][ T253] netlink_unicast+0x449/0x710 [ 293.650745][ T253] netlink_sendmsg+0x723/0xbe0 [ 293.650745][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 293.650745][ T253] ___sys_sendmsg+0xee/0x170 [ 293.650745][ T253] __sys_sendmsg+0xcd/0x170 [ 293.650745][ T253] do_syscall_64+0xc6/0x1e0 [ 293.650745][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 293.650745][ T253] [ 293.653452][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 293.653452][ T253] netdev_get_by_index+0x5e/0x80 [ 293.653452][ T253] fib6_nh_init+0x3d8/0x1580 [ 293.653452][ T253] ip6_route_info_create+0xf18/0x17d0 [ 293.653452][ T253] ip6_route_add+0x1c/0x140 [ 293.653452][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 293.653452][ T253] addrconf_add_dev+0xe2/0x170 [ 293.653452][ T253] inet6_addr_add+0x12f/0xa40 [ 293.653452][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 293.653452][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 293.653452][ T253] netlink_rcv_skb+0x130/0x360 [ 293.653452][ T253] netlink_unicast+0x449/0x710 [ 293.653452][ T253] netlink_sendmsg+0x723/0xbe0 [ 293.653452][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 293.653452][ T253] ___sys_sendmsg+0xee/0x170 [ 293.653452][ T253] __sys_sendmsg+0xcd/0x170 [ 293.653452][ T253] do_syscall_64+0xc6/0x1e0 [ 293.653452][ T253] [ 293.656112][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 293.656112][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 293.656112][ T253] ipv6_find_idev+0x102/0x170 [ 293.656112][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 293.656112][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 293.656112][ T253] netlink_rcv_skb+0x130/0x360 [ 293.656112][ T253] netlink_unicast+0x449/0x710 [ 293.656112][ T253] netlink_sendmsg+0x723/0xbe0 [ 293.656112][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 293.656112][ T253] ___sys_sendmsg+0xee/0x170 [ 293.656112][ T253] __sys_sendmsg+0xcd/0x170 [ 293.656112][ T253] do_syscall_64+0xc6/0x1e0 [ 293.656112][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 293.656112][ T253] [ 293.658210][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 293.658210][ T253] neigh_parms_alloc+0x1e5/0x510 [ 293.658210][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 293.658210][ T253] ipv6_find_idev+0x102/0x170 [ 293.658210][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 293.658210][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 293.658210][ T253] netlink_rcv_skb+0x130/0x360 [ 293.658210][ T253] netlink_unicast+0x449/0x710 [ 293.658210][ T253] netlink_sendmsg+0x723/0xbe0 [ 293.658210][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 293.658210][ T253] ___sys_sendmsg+0xee/0x170 [ 293.658210][ T253] __sys_sendmsg+0xcd/0x170 [ 293.658210][ T253] do_syscall_64+0xc6/0x1e0 [ 293.658210][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 293.658210][ T253] [ 303.778293][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 303.778758][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 303.778758][ T253] dst_init+0x84/0x4a0 [ 303.778758][ T253] dst_alloc+0x97/0x150 [ 303.778758][ T253] ip6_dst_alloc+0x23/0x90 [ 303.778758][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 303.778758][ T253] ip6_pol_route+0x56f/0x840 [ 303.778758][ T253] fib6_rule_lookup+0x334/0x630 [ 303.778758][ T253] ip6_route_output_flags+0x259/0x480 [ 303.778758][ T253] inet6_rtm_getroute+0x980/0xf70 [ 303.778758][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 303.778758][ T253] netlink_rcv_skb+0x130/0x360 [ 303.778758][ T253] netlink_unicast+0x449/0x710 [ 303.778758][ T253] netlink_sendmsg+0x723/0xbe0 [ 303.778758][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 303.778758][ T253] ___sys_sendmsg+0xee/0x170 [ 303.778758][ T253] __sys_sendmsg+0xcd/0x170 [ 303.778758][ T253] do_syscall_64+0xc6/0x1e0 [ 303.778758][ T253] [ 303.781284][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 303.781284][ T253] netdev_get_by_index+0x5e/0x80 [ 303.781284][ T253] fib6_nh_init+0x3d8/0x1580 [ 303.781284][ T253] ip6_route_info_create+0xf18/0x17d0 [ 303.781284][ T253] addrconf_f6i_alloc+0x265/0x560 [ 303.781284][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 303.781284][ T253] addrconf_join_anycast+0x1c0/0x220 [ 303.781284][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 303.781284][ T253] addrconf_dad_completed+0x12b/0xe20 [ 303.781284][ T253] addrconf_dad_begin+0x310/0x670 [ 303.781284][ T253] addrconf_dad_work+0x10b/0xab0 [ 303.781284][ T253] process_one_work+0x84d/0x18a0 [ 303.781284][ T253] worker_thread+0x587/0xd30 [ 303.781284][ T253] kthread+0x28a/0x350 [ 303.781284][ T253] ret_from_fork+0x31/0x70 [ 303.781284][ T253] ret_from_fork_asm+0x1a/0x30 [ 303.781284][ T253] [ 303.783763][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 303.783763][ T253] netdev_get_by_index+0x5e/0x80 [ 303.783763][ T253] fib6_nh_init+0x3d8/0x1580 [ 303.783763][ T253] ip6_route_info_create+0xf18/0x17d0 [ 303.783763][ T253] ip6_route_add+0x1c/0x140 [ 303.783763][ T253] addrconf_prefix_route+0x2a6/0x430 [ 303.783763][ T253] inet6_addr_add+0x4f8/0xa40 [ 303.783763][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 303.783763][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 303.783763][ T253] netlink_rcv_skb+0x130/0x360 [ 303.783763][ T253] netlink_unicast+0x449/0x710 [ 303.783763][ T253] netlink_sendmsg+0x723/0xbe0 [ 303.783763][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 303.783763][ T253] ___sys_sendmsg+0xee/0x170 [ 303.783763][ T253] __sys_sendmsg+0xcd/0x170 [ 303.783763][ T253] do_syscall_64+0xc6/0x1e0 [ 303.783763][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 303.783763][ T253] [ 303.786699][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 303.786699][ T253] netdev_get_by_index+0x5e/0x80 [ 303.786699][ T253] fib6_nh_init+0x3d8/0x1580 [ 303.786699][ T253] ip6_route_info_create+0xf18/0x17d0 [ 303.786699][ T253] addrconf_f6i_alloc+0x315/0x560 [ 303.786699][ T253] ipv6_add_addr+0x411/0x2000 [ 303.786699][ T253] inet6_addr_add+0x30e/0xa40 [ 303.786699][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 303.786699][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 303.786699][ T253] netlink_rcv_skb+0x130/0x360 [ 303.786699][ T253] netlink_unicast+0x449/0x710 [ 303.786699][ T253] netlink_sendmsg+0x723/0xbe0 [ 303.786699][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 303.786699][ T253] ___sys_sendmsg+0xee/0x170 [ 303.786699][ T253] __sys_sendmsg+0xcd/0x170 [ 303.786699][ T253] do_syscall_64+0xc6/0x1e0 [ 303.786699][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 303.786699][ T253] [ 303.790454][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 303.790454][ T253] netdev_get_by_index+0x5e/0x80 [ 303.790454][ T253] fib6_nh_init+0x3d8/0x1580 [ 303.790454][ T253] ip6_route_info_create+0xf18/0x17d0 [ 303.790454][ T253] ip6_route_add+0x1c/0x140 [ 303.790454][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 303.790454][ T253] addrconf_add_dev+0xe2/0x170 [ 303.790454][ T253] inet6_addr_add+0x12f/0xa40 [ 303.790454][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 303.790454][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 303.790454][ T253] netlink_rcv_skb+0x130/0x360 [ 303.790454][ T253] netlink_unicast+0x449/0x710 [ 303.790454][ T253] netlink_sendmsg+0x723/0xbe0 [ 303.790454][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 303.790454][ T253] ___sys_sendmsg+0xee/0x170 [ 303.790454][ T253] __sys_sendmsg+0xcd/0x170 [ 303.790454][ T253] do_syscall_64+0xc6/0x1e0 [ 303.790454][ T253] [ 303.793809][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 303.793809][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 303.793809][ T253] ipv6_find_idev+0x102/0x170 [ 303.793809][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 303.793809][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 303.793809][ T253] netlink_rcv_skb+0x130/0x360 [ 303.793809][ T253] netlink_unicast+0x449/0x710 [ 303.793809][ T253] netlink_sendmsg+0x723/0xbe0 [ 303.793809][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 303.793809][ T253] ___sys_sendmsg+0xee/0x170 [ 303.793809][ T253] __sys_sendmsg+0xcd/0x170 [ 303.793809][ T253] do_syscall_64+0xc6/0x1e0 [ 303.793809][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 303.793809][ T253] [ 303.795820][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 303.795820][ T253] neigh_parms_alloc+0x1e5/0x510 [ 303.795820][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 303.795820][ T253] ipv6_find_idev+0x102/0x170 [ 303.795820][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 303.795820][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 303.795820][ T253] netlink_rcv_skb+0x130/0x360 [ 303.795820][ T253] netlink_unicast+0x449/0x710 [ 303.795820][ T253] netlink_sendmsg+0x723/0xbe0 [ 303.795820][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 303.795820][ T253] ___sys_sendmsg+0xee/0x170 [ 303.795820][ T253] __sys_sendmsg+0xcd/0x170 [ 303.795820][ T253] do_syscall_64+0xc6/0x1e0 [ 303.795820][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 303.795820][ T253] [ 313.914260][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 313.914844][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 313.914844][ T253] dst_init+0x84/0x4a0 [ 313.914844][ T253] dst_alloc+0x97/0x150 [ 313.914844][ T253] ip6_dst_alloc+0x23/0x90 [ 313.914844][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 313.914844][ T253] ip6_pol_route+0x56f/0x840 [ 313.914844][ T253] fib6_rule_lookup+0x334/0x630 [ 313.914844][ T253] ip6_route_output_flags+0x259/0x480 [ 313.914844][ T253] inet6_rtm_getroute+0x980/0xf70 [ 313.914844][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 313.914844][ T253] netlink_rcv_skb+0x130/0x360 [ 313.914844][ T253] netlink_unicast+0x449/0x710 [ 313.914844][ T253] netlink_sendmsg+0x723/0xbe0 [ 313.914844][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 313.914844][ T253] ___sys_sendmsg+0xee/0x170 [ 313.914844][ T253] __sys_sendmsg+0xcd/0x170 [ 313.914844][ T253] do_syscall_64+0xc6/0x1e0 [ 313.914844][ T253] [ 313.917142][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 313.917142][ T253] netdev_get_by_index+0x5e/0x80 [ 313.917142][ T253] fib6_nh_init+0x3d8/0x1580 [ 313.917142][ T253] ip6_route_info_create+0xf18/0x17d0 [ 313.917142][ T253] addrconf_f6i_alloc+0x265/0x560 [ 313.917142][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 313.917142][ T253] addrconf_join_anycast+0x1c0/0x220 [ 313.917142][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 313.917142][ T253] addrconf_dad_completed+0x12b/0xe20 [ 313.917142][ T253] addrconf_dad_begin+0x310/0x670 [ 313.917142][ T253] addrconf_dad_work+0x10b/0xab0 [ 313.917142][ T253] process_one_work+0x84d/0x18a0 [ 313.917142][ T253] worker_thread+0x587/0xd30 [ 313.917142][ T253] kthread+0x28a/0x350 [ 313.917142][ T253] ret_from_fork+0x31/0x70 [ 313.917142][ T253] ret_from_fork_asm+0x1a/0x30 [ 313.917142][ T253] [ 313.919381][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 313.919381][ T253] netdev_get_by_index+0x5e/0x80 [ 313.919381][ T253] fib6_nh_init+0x3d8/0x1580 [ 313.919381][ T253] ip6_route_info_create+0xf18/0x17d0 [ 313.919381][ T253] ip6_route_add+0x1c/0x140 [ 313.919381][ T253] addrconf_prefix_route+0x2a6/0x430 [ 313.919381][ T253] inet6_addr_add+0x4f8/0xa40 [ 313.919381][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 313.919381][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 313.919381][ T253] netlink_rcv_skb+0x130/0x360 [ 313.919381][ T253] netlink_unicast+0x449/0x710 [ 313.919381][ T253] netlink_sendmsg+0x723/0xbe0 [ 313.919381][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 313.919381][ T253] ___sys_sendmsg+0xee/0x170 [ 313.919381][ T253] __sys_sendmsg+0xcd/0x170 [ 313.919381][ T253] do_syscall_64+0xc6/0x1e0 [ 313.919381][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 313.919381][ T253] [ 313.921721][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 313.921721][ T253] netdev_get_by_index+0x5e/0x80 [ 313.921721][ T253] fib6_nh_init+0x3d8/0x1580 [ 313.921721][ T253] ip6_route_info_create+0xf18/0x17d0 [ 313.921721][ T253] addrconf_f6i_alloc+0x315/0x560 [ 313.921721][ T253] ipv6_add_addr+0x411/0x2000 [ 313.921721][ T253] inet6_addr_add+0x30e/0xa40 [ 313.921721][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 313.921721][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 313.921721][ T253] netlink_rcv_skb+0x130/0x360 [ 313.921721][ T253] netlink_unicast+0x449/0x710 [ 313.921721][ T253] netlink_sendmsg+0x723/0xbe0 [ 313.921721][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 313.921721][ T253] ___sys_sendmsg+0xee/0x170 [ 313.921721][ T253] __sys_sendmsg+0xcd/0x170 [ 313.921721][ T253] do_syscall_64+0xc6/0x1e0 [ 313.921721][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 313.921721][ T253] [ 313.924050][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 313.924050][ T253] netdev_get_by_index+0x5e/0x80 [ 313.924050][ T253] fib6_nh_init+0x3d8/0x1580 [ 313.924050][ T253] ip6_route_info_create+0xf18/0x17d0 [ 313.924050][ T253] ip6_route_add+0x1c/0x140 [ 313.924050][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 313.924050][ T253] addrconf_add_dev+0xe2/0x170 [ 313.924050][ T253] inet6_addr_add+0x12f/0xa40 [ 313.924050][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 313.924050][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 313.924050][ T253] netlink_rcv_skb+0x130/0x360 [ 313.924050][ T253] netlink_unicast+0x449/0x710 [ 313.924050][ T253] netlink_sendmsg+0x723/0xbe0 [ 313.924050][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 313.924050][ T253] ___sys_sendmsg+0xee/0x170 [ 313.924050][ T253] __sys_sendmsg+0xcd/0x170 [ 313.924050][ T253] do_syscall_64+0xc6/0x1e0 [ 313.924050][ T253] [ 313.926321][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 313.926321][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 313.926321][ T253] ipv6_find_idev+0x102/0x170 [ 313.926321][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 313.926321][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 313.926321][ T253] netlink_rcv_skb+0x130/0x360 [ 313.926321][ T253] netlink_unicast+0x449/0x710 [ 313.926321][ T253] netlink_sendmsg+0x723/0xbe0 [ 313.926321][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 313.926321][ T253] ___sys_sendmsg+0xee/0x170 [ 313.926321][ T253] __sys_sendmsg+0xcd/0x170 [ 313.926321][ T253] do_syscall_64+0xc6/0x1e0 [ 313.926321][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 313.926321][ T253] [ 313.928085][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 313.928085][ T253] neigh_parms_alloc+0x1e5/0x510 [ 313.928085][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 313.928085][ T253] ipv6_find_idev+0x102/0x170 [ 313.928085][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 313.928085][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 313.928085][ T253] netlink_rcv_skb+0x130/0x360 [ 313.928085][ T253] netlink_unicast+0x449/0x710 [ 313.928085][ T253] netlink_sendmsg+0x723/0xbe0 [ 313.928085][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 313.928085][ T253] ___sys_sendmsg+0xee/0x170 [ 313.928085][ T253] __sys_sendmsg+0xcd/0x170 [ 313.928085][ T253] do_syscall_64+0xc6/0x1e0 [ 313.928085][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 313.928085][ T253] [ 324.146294][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 324.146777][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 324.146777][ T253] dst_init+0x84/0x4a0 [ 324.146777][ T253] dst_alloc+0x97/0x150 [ 324.146777][ T253] ip6_dst_alloc+0x23/0x90 [ 324.146777][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 324.146777][ T253] ip6_pol_route+0x56f/0x840 [ 324.146777][ T253] fib6_rule_lookup+0x334/0x630 [ 324.146777][ T253] ip6_route_output_flags+0x259/0x480 [ 324.146777][ T253] inet6_rtm_getroute+0x980/0xf70 [ 324.146777][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 324.146777][ T253] netlink_rcv_skb+0x130/0x360 [ 324.146777][ T253] netlink_unicast+0x449/0x710 [ 324.146777][ T253] netlink_sendmsg+0x723/0xbe0 [ 324.146777][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 324.146777][ T253] ___sys_sendmsg+0xee/0x170 [ 324.146777][ T253] __sys_sendmsg+0xcd/0x170 [ 324.146777][ T253] do_syscall_64+0xc6/0x1e0 [ 324.146777][ T253] [ 324.149007][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 324.149007][ T253] netdev_get_by_index+0x5e/0x80 [ 324.149007][ T253] fib6_nh_init+0x3d8/0x1580 [ 324.149007][ T253] ip6_route_info_create+0xf18/0x17d0 [ 324.149007][ T253] addrconf_f6i_alloc+0x265/0x560 [ 324.149007][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 324.149007][ T253] addrconf_join_anycast+0x1c0/0x220 [ 324.149007][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 324.149007][ T253] addrconf_dad_completed+0x12b/0xe20 [ 324.149007][ T253] addrconf_dad_begin+0x310/0x670 [ 324.149007][ T253] addrconf_dad_work+0x10b/0xab0 [ 324.149007][ T253] process_one_work+0x84d/0x18a0 [ 324.149007][ T253] worker_thread+0x587/0xd30 [ 324.149007][ T253] kthread+0x28a/0x350 [ 324.149007][ T253] ret_from_fork+0x31/0x70 [ 324.149007][ T253] ret_from_fork_asm+0x1a/0x30 [ 324.149007][ T253] [ 324.151165][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 324.151165][ T253] netdev_get_by_index+0x5e/0x80 [ 324.151165][ T253] fib6_nh_init+0x3d8/0x1580 [ 324.151165][ T253] ip6_route_info_create+0xf18/0x17d0 [ 324.151165][ T253] ip6_route_add+0x1c/0x140 [ 324.151165][ T253] addrconf_prefix_route+0x2a6/0x430 [ 324.151165][ T253] inet6_addr_add+0x4f8/0xa40 [ 324.151165][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 324.151165][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 324.151165][ T253] netlink_rcv_skb+0x130/0x360 [ 324.151165][ T253] netlink_unicast+0x449/0x710 [ 324.151165][ T253] netlink_sendmsg+0x723/0xbe0 [ 324.151165][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 324.151165][ T253] ___sys_sendmsg+0xee/0x170 [ 324.151165][ T253] __sys_sendmsg+0xcd/0x170 [ 324.151165][ T253] do_syscall_64+0xc6/0x1e0 [ 324.151165][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 324.151165][ T253] [ 324.153401][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 324.153401][ T253] netdev_get_by_index+0x5e/0x80 [ 324.153401][ T253] fib6_nh_init+0x3d8/0x1580 [ 324.153401][ T253] ip6_route_info_create+0xf18/0x17d0 [ 324.153401][ T253] addrconf_f6i_alloc+0x315/0x560 [ 324.153401][ T253] ipv6_add_addr+0x411/0x2000 [ 324.153401][ T253] inet6_addr_add+0x30e/0xa40 [ 324.153401][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 324.153401][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 324.153401][ T253] netlink_rcv_skb+0x130/0x360 [ 324.153401][ T253] netlink_unicast+0x449/0x710 [ 324.153401][ T253] netlink_sendmsg+0x723/0xbe0 [ 324.153401][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 324.153401][ T253] ___sys_sendmsg+0xee/0x170 [ 324.153401][ T253] __sys_sendmsg+0xcd/0x170 [ 324.153401][ T253] do_syscall_64+0xc6/0x1e0 [ 324.153401][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 324.153401][ T253] [ 324.155645][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 324.155645][ T253] netdev_get_by_index+0x5e/0x80 [ 324.155645][ T253] fib6_nh_init+0x3d8/0x1580 [ 324.155645][ T253] ip6_route_info_create+0xf18/0x17d0 [ 324.155645][ T253] ip6_route_add+0x1c/0x140 [ 324.155645][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 324.155645][ T253] addrconf_add_dev+0xe2/0x170 [ 324.155645][ T253] inet6_addr_add+0x12f/0xa40 [ 324.155645][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 324.155645][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 324.155645][ T253] netlink_rcv_skb+0x130/0x360 [ 324.155645][ T253] netlink_unicast+0x449/0x710 [ 324.155645][ T253] netlink_sendmsg+0x723/0xbe0 [ 324.155645][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 324.155645][ T253] ___sys_sendmsg+0xee/0x170 [ 324.155645][ T253] __sys_sendmsg+0xcd/0x170 [ 324.155645][ T253] do_syscall_64+0xc6/0x1e0 [ 324.155645][ T253] [ 324.158288][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 324.158288][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 324.158288][ T253] ipv6_find_idev+0x102/0x170 [ 324.158288][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 324.158288][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 324.158288][ T253] netlink_rcv_skb+0x130/0x360 [ 324.158288][ T253] netlink_unicast+0x449/0x710 [ 324.158288][ T253] netlink_sendmsg+0x723/0xbe0 [ 324.158288][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 324.158288][ T253] ___sys_sendmsg+0xee/0x170 [ 324.158288][ T253] __sys_sendmsg+0xcd/0x170 [ 324.158288][ T253] do_syscall_64+0xc6/0x1e0 [ 324.158288][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 324.158288][ T253] [ 324.160376][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 324.160376][ T253] neigh_parms_alloc+0x1e5/0x510 [ 324.160376][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 324.160376][ T253] ipv6_find_idev+0x102/0x170 [ 324.160376][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 324.160376][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 324.160376][ T253] netlink_rcv_skb+0x130/0x360 [ 324.160376][ T253] netlink_unicast+0x449/0x710 [ 324.160376][ T253] netlink_sendmsg+0x723/0xbe0 [ 324.160376][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 324.160376][ T253] ___sys_sendmsg+0xee/0x170 [ 324.160376][ T253] __sys_sendmsg+0xcd/0x170 [ 324.160376][ T253] do_syscall_64+0xc6/0x1e0 [ 324.160376][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 324.160376][ T253] [ 334.290295][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 334.290784][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 334.290784][ T253] dst_init+0x84/0x4a0 [ 334.290784][ T253] dst_alloc+0x97/0x150 [ 334.290784][ T253] ip6_dst_alloc+0x23/0x90 [ 334.290784][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 334.290784][ T253] ip6_pol_route+0x56f/0x840 [ 334.290784][ T253] fib6_rule_lookup+0x334/0x630 [ 334.290784][ T253] ip6_route_output_flags+0x259/0x480 [ 334.290784][ T253] inet6_rtm_getroute+0x980/0xf70 [ 334.290784][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 334.290784][ T253] netlink_rcv_skb+0x130/0x360 [ 334.290784][ T253] netlink_unicast+0x449/0x710 [ 334.290784][ T253] netlink_sendmsg+0x723/0xbe0 [ 334.290784][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 334.290784][ T253] ___sys_sendmsg+0xee/0x170 [ 334.290784][ T253] __sys_sendmsg+0xcd/0x170 [ 334.290784][ T253] do_syscall_64+0xc6/0x1e0 [ 334.290784][ T253] [ 334.293440][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 334.293440][ T253] netdev_get_by_index+0x5e/0x80 [ 334.293440][ T253] fib6_nh_init+0x3d8/0x1580 [ 334.293440][ T253] ip6_route_info_create+0xf18/0x17d0 [ 334.293440][ T253] addrconf_f6i_alloc+0x265/0x560 [ 334.293440][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 334.293440][ T253] addrconf_join_anycast+0x1c0/0x220 [ 334.293440][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 334.293440][ T253] addrconf_dad_completed+0x12b/0xe20 [ 334.293440][ T253] addrconf_dad_begin+0x310/0x670 [ 334.293440][ T253] addrconf_dad_work+0x10b/0xab0 [ 334.293440][ T253] process_one_work+0x84d/0x18a0 [ 334.293440][ T253] worker_thread+0x587/0xd30 [ 334.293440][ T253] kthread+0x28a/0x350 [ 334.293440][ T253] ret_from_fork+0x31/0x70 [ 334.293440][ T253] ret_from_fork_asm+0x1a/0x30 [ 334.293440][ T253] [ 334.296030][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 334.296030][ T253] netdev_get_by_index+0x5e/0x80 [ 334.296030][ T253] fib6_nh_init+0x3d8/0x1580 [ 334.296030][ T253] ip6_route_info_create+0xf18/0x17d0 [ 334.296030][ T253] ip6_route_add+0x1c/0x140 [ 334.296030][ T253] addrconf_prefix_route+0x2a6/0x430 [ 334.296030][ T253] inet6_addr_add+0x4f8/0xa40 [ 334.296030][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 334.296030][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 334.296030][ T253] netlink_rcv_skb+0x130/0x360 [ 334.296030][ T253] netlink_unicast+0x449/0x710 [ 334.296030][ T253] netlink_sendmsg+0x723/0xbe0 [ 334.296030][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 334.296030][ T253] ___sys_sendmsg+0xee/0x170 [ 334.296030][ T253] __sys_sendmsg+0xcd/0x170 [ 334.296030][ T253] do_syscall_64+0xc6/0x1e0 [ 334.296030][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 334.296030][ T253] [ 334.298760][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 334.298760][ T253] netdev_get_by_index+0x5e/0x80 [ 334.298760][ T253] fib6_nh_init+0x3d8/0x1580 [ 334.298760][ T253] ip6_route_info_create+0xf18/0x17d0 [ 334.298760][ T253] addrconf_f6i_alloc+0x315/0x560 [ 334.298760][ T253] ipv6_add_addr+0x411/0x2000 [ 334.298760][ T253] inet6_addr_add+0x30e/0xa40 [ 334.298760][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 334.298760][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 334.298760][ T253] netlink_rcv_skb+0x130/0x360 [ 334.298760][ T253] netlink_unicast+0x449/0x710 [ 334.298760][ T253] netlink_sendmsg+0x723/0xbe0 [ 334.298760][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 334.298760][ T253] ___sys_sendmsg+0xee/0x170 [ 334.298760][ T253] __sys_sendmsg+0xcd/0x170 [ 334.298760][ T253] do_syscall_64+0xc6/0x1e0 [ 334.298760][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 334.298760][ T253] [ 334.301471][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 334.301471][ T253] netdev_get_by_index+0x5e/0x80 [ 334.301471][ T253] fib6_nh_init+0x3d8/0x1580 [ 334.301471][ T253] ip6_route_info_create+0xf18/0x17d0 [ 334.301471][ T253] ip6_route_add+0x1c/0x140 [ 334.301471][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 334.301471][ T253] addrconf_add_dev+0xe2/0x170 [ 334.301471][ T253] inet6_addr_add+0x12f/0xa40 [ 334.301471][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 334.301471][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 334.301471][ T253] netlink_rcv_skb+0x130/0x360 [ 334.301471][ T253] netlink_unicast+0x449/0x710 [ 334.301471][ T253] netlink_sendmsg+0x723/0xbe0 [ 334.301471][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 334.301471][ T253] ___sys_sendmsg+0xee/0x170 [ 334.301471][ T253] __sys_sendmsg+0xcd/0x170 [ 334.301471][ T253] do_syscall_64+0xc6/0x1e0 [ 334.301471][ T253] [ 334.304141][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 334.304141][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 334.304141][ T253] ipv6_find_idev+0x102/0x170 [ 334.304141][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 334.304141][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 334.304141][ T253] netlink_rcv_skb+0x130/0x360 [ 334.304141][ T253] netlink_unicast+0x449/0x710 [ 334.304141][ T253] netlink_sendmsg+0x723/0xbe0 [ 334.304141][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 334.304141][ T253] ___sys_sendmsg+0xee/0x170 [ 334.304141][ T253] __sys_sendmsg+0xcd/0x170 [ 334.304141][ T253] do_syscall_64+0xc6/0x1e0 [ 334.304141][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 334.304141][ T253] [ 334.306230][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 334.306230][ T253] neigh_parms_alloc+0x1e5/0x510 [ 334.306230][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 334.306230][ T253] ipv6_find_idev+0x102/0x170 [ 334.306230][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 334.306230][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 334.306230][ T253] netlink_rcv_skb+0x130/0x360 [ 334.306230][ T253] netlink_unicast+0x449/0x710 [ 334.306230][ T253] netlink_sendmsg+0x723/0xbe0 [ 334.306230][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 334.306230][ T253] ___sys_sendmsg+0xee/0x170 [ 334.306230][ T253] __sys_sendmsg+0xcd/0x170 [ 334.306230][ T253] do_syscall_64+0xc6/0x1e0 [ 334.306230][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 334.306230][ T253] [ 344.354235][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 344.354680][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 344.354680][ T253] dst_init+0x84/0x4a0 [ 344.354680][ T253] dst_alloc+0x97/0x150 [ 344.354680][ T253] ip6_dst_alloc+0x23/0x90 [ 344.354680][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 344.354680][ T253] ip6_pol_route+0x56f/0x840 [ 344.354680][ T253] fib6_rule_lookup+0x334/0x630 [ 344.354680][ T253] ip6_route_output_flags+0x259/0x480 [ 344.354680][ T253] inet6_rtm_getroute+0x980/0xf70 [ 344.354680][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 344.354680][ T253] netlink_rcv_skb+0x130/0x360 [ 344.354680][ T253] netlink_unicast+0x449/0x710 [ 344.354680][ T253] netlink_sendmsg+0x723/0xbe0 [ 344.354680][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 344.354680][ T253] ___sys_sendmsg+0xee/0x170 [ 344.354680][ T253] __sys_sendmsg+0xcd/0x170 [ 344.354680][ T253] do_syscall_64+0xc6/0x1e0 [ 344.354680][ T253] [ 344.357039][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 344.357039][ T253] netdev_get_by_index+0x5e/0x80 [ 344.357039][ T253] fib6_nh_init+0x3d8/0x1580 [ 344.357039][ T253] ip6_route_info_create+0xf18/0x17d0 [ 344.357039][ T253] addrconf_f6i_alloc+0x265/0x560 [ 344.357039][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 344.357039][ T253] addrconf_join_anycast+0x1c0/0x220 [ 344.357039][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 344.357039][ T253] addrconf_dad_completed+0x12b/0xe20 [ 344.357039][ T253] addrconf_dad_begin+0x310/0x670 [ 344.357039][ T253] addrconf_dad_work+0x10b/0xab0 [ 344.357039][ T253] process_one_work+0x84d/0x18a0 [ 344.357039][ T253] worker_thread+0x587/0xd30 [ 344.357039][ T253] kthread+0x28a/0x350 [ 344.357039][ T253] ret_from_fork+0x31/0x70 [ 344.357039][ T253] ret_from_fork_asm+0x1a/0x30 [ 344.357039][ T253] [ 344.359349][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 344.359349][ T253] netdev_get_by_index+0x5e/0x80 [ 344.359349][ T253] fib6_nh_init+0x3d8/0x1580 [ 344.359349][ T253] ip6_route_info_create+0xf18/0x17d0 [ 344.359349][ T253] ip6_route_add+0x1c/0x140 [ 344.359349][ T253] addrconf_prefix_route+0x2a6/0x430 [ 344.359349][ T253] inet6_addr_add+0x4f8/0xa40 [ 344.359349][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 344.359349][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 344.359349][ T253] netlink_rcv_skb+0x130/0x360 [ 344.359349][ T253] netlink_unicast+0x449/0x710 [ 344.359349][ T253] netlink_sendmsg+0x723/0xbe0 [ 344.359349][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 344.359349][ T253] ___sys_sendmsg+0xee/0x170 [ 344.359349][ T253] __sys_sendmsg+0xcd/0x170 [ 344.359349][ T253] do_syscall_64+0xc6/0x1e0 [ 344.359349][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 344.359349][ T253] [ 344.361783][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 344.361783][ T253] netdev_get_by_index+0x5e/0x80 [ 344.361783][ T253] fib6_nh_init+0x3d8/0x1580 [ 344.361783][ T253] ip6_route_info_create+0xf18/0x17d0 [ 344.361783][ T253] addrconf_f6i_alloc+0x315/0x560 [ 344.361783][ T253] ipv6_add_addr+0x411/0x2000 [ 344.361783][ T253] inet6_addr_add+0x30e/0xa40 [ 344.361783][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 344.361783][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 344.361783][ T253] netlink_rcv_skb+0x130/0x360 [ 344.361783][ T253] netlink_unicast+0x449/0x710 [ 344.361783][ T253] netlink_sendmsg+0x723/0xbe0 [ 344.361783][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 344.361783][ T253] ___sys_sendmsg+0xee/0x170 [ 344.361783][ T253] __sys_sendmsg+0xcd/0x170 [ 344.361783][ T253] do_syscall_64+0xc6/0x1e0 [ 344.361783][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 344.361783][ T253] [ 344.364212][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 344.364212][ T253] netdev_get_by_index+0x5e/0x80 [ 344.364212][ T253] fib6_nh_init+0x3d8/0x1580 [ 344.364212][ T253] ip6_route_info_create+0xf18/0x17d0 [ 344.364212][ T253] ip6_route_add+0x1c/0x140 [ 344.364212][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 344.364212][ T253] addrconf_add_dev+0xe2/0x170 [ 344.364212][ T253] inet6_addr_add+0x12f/0xa40 [ 344.364212][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 344.364212][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 344.364212][ T253] netlink_rcv_skb+0x130/0x360 [ 344.364212][ T253] netlink_unicast+0x449/0x710 [ 344.364212][ T253] netlink_sendmsg+0x723/0xbe0 [ 344.364212][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 344.364212][ T253] ___sys_sendmsg+0xee/0x170 [ 344.364212][ T253] __sys_sendmsg+0xcd/0x170 [ 344.364212][ T253] do_syscall_64+0xc6/0x1e0 [ 344.364212][ T253] [ 344.366600][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 344.366600][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 344.366600][ T253] ipv6_find_idev+0x102/0x170 [ 344.366600][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 344.366600][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 344.366600][ T253] netlink_rcv_skb+0x130/0x360 [ 344.366600][ T253] netlink_unicast+0x449/0x710 [ 344.366600][ T253] netlink_sendmsg+0x723/0xbe0 [ 344.366600][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 344.366600][ T253] ___sys_sendmsg+0xee/0x170 [ 344.366600][ T253] __sys_sendmsg+0xcd/0x170 [ 344.366600][ T253] do_syscall_64+0xc6/0x1e0 [ 344.366600][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 344.366600][ T253] [ 344.368474][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 344.368474][ T253] neigh_parms_alloc+0x1e5/0x510 [ 344.368474][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 344.368474][ T253] ipv6_find_idev+0x102/0x170 [ 344.368474][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 344.368474][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 344.368474][ T253] netlink_rcv_skb+0x130/0x360 [ 344.368474][ T253] netlink_unicast+0x449/0x710 [ 344.368474][ T253] netlink_sendmsg+0x723/0xbe0 [ 344.368474][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 344.368474][ T253] ___sys_sendmsg+0xee/0x170 [ 344.368474][ T253] __sys_sendmsg+0xcd/0x170 [ 344.368474][ T253] do_syscall_64+0xc6/0x1e0 [ 344.368474][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 344.368474][ T253] [ 354.610279][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 354.610691][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 354.610691][ T253] dst_init+0x84/0x4a0 [ 354.610691][ T253] dst_alloc+0x97/0x150 [ 354.610691][ T253] ip6_dst_alloc+0x23/0x90 [ 354.610691][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 354.610691][ T253] ip6_pol_route+0x56f/0x840 [ 354.610691][ T253] fib6_rule_lookup+0x334/0x630 [ 354.610691][ T253] ip6_route_output_flags+0x259/0x480 [ 354.610691][ T253] inet6_rtm_getroute+0x980/0xf70 [ 354.610691][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 354.610691][ T253] netlink_rcv_skb+0x130/0x360 [ 354.610691][ T253] netlink_unicast+0x449/0x710 [ 354.610691][ T253] netlink_sendmsg+0x723/0xbe0 [ 354.610691][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 354.610691][ T253] ___sys_sendmsg+0xee/0x170 [ 354.610691][ T253] __sys_sendmsg+0xcd/0x170 [ 354.610691][ T253] do_syscall_64+0xc6/0x1e0 [ 354.610691][ T253] [ 354.612895][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 354.612895][ T253] netdev_get_by_index+0x5e/0x80 [ 354.612895][ T253] fib6_nh_init+0x3d8/0x1580 [ 354.612895][ T253] ip6_route_info_create+0xf18/0x17d0 [ 354.612895][ T253] addrconf_f6i_alloc+0x265/0x560 [ 354.612895][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 354.612895][ T253] addrconf_join_anycast+0x1c0/0x220 [ 354.612895][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 354.612895][ T253] addrconf_dad_completed+0x12b/0xe20 [ 354.612895][ T253] addrconf_dad_begin+0x310/0x670 [ 354.612895][ T253] addrconf_dad_work+0x10b/0xab0 [ 354.612895][ T253] process_one_work+0x84d/0x18a0 [ 354.612895][ T253] worker_thread+0x587/0xd30 [ 354.612895][ T253] kthread+0x28a/0x350 [ 354.612895][ T253] ret_from_fork+0x31/0x70 [ 354.612895][ T253] ret_from_fork_asm+0x1a/0x30 [ 354.612895][ T253] [ 354.615069][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 354.615069][ T253] netdev_get_by_index+0x5e/0x80 [ 354.615069][ T253] fib6_nh_init+0x3d8/0x1580 [ 354.615069][ T253] ip6_route_info_create+0xf18/0x17d0 [ 354.615069][ T253] ip6_route_add+0x1c/0x140 [ 354.615069][ T253] addrconf_prefix_route+0x2a6/0x430 [ 354.615069][ T253] inet6_addr_add+0x4f8/0xa40 [ 354.615069][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 354.615069][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 354.615069][ T253] netlink_rcv_skb+0x130/0x360 [ 354.615069][ T253] netlink_unicast+0x449/0x710 [ 354.615069][ T253] netlink_sendmsg+0x723/0xbe0 [ 354.615069][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 354.615069][ T253] ___sys_sendmsg+0xee/0x170 [ 354.615069][ T253] __sys_sendmsg+0xcd/0x170 [ 354.615069][ T253] do_syscall_64+0xc6/0x1e0 [ 354.615069][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 354.615069][ T253] [ 354.617698][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 354.617698][ T253] netdev_get_by_index+0x5e/0x80 [ 354.617698][ T253] fib6_nh_init+0x3d8/0x1580 [ 354.617698][ T253] ip6_route_info_create+0xf18/0x17d0 [ 354.617698][ T253] addrconf_f6i_alloc+0x315/0x560 [ 354.617698][ T253] ipv6_add_addr+0x411/0x2000 [ 354.617698][ T253] inet6_addr_add+0x30e/0xa40 [ 354.617698][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 354.617698][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 354.617698][ T253] netlink_rcv_skb+0x130/0x360 [ 354.617698][ T253] netlink_unicast+0x449/0x710 [ 354.617698][ T253] netlink_sendmsg+0x723/0xbe0 [ 354.617698][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 354.617698][ T253] ___sys_sendmsg+0xee/0x170 [ 354.617698][ T253] __sys_sendmsg+0xcd/0x170 [ 354.617698][ T253] do_syscall_64+0xc6/0x1e0 [ 354.617698][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 354.617698][ T253] [ 354.619976][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 354.619976][ T253] netdev_get_by_index+0x5e/0x80 [ 354.619976][ T253] fib6_nh_init+0x3d8/0x1580 [ 354.619976][ T253] ip6_route_info_create+0xf18/0x17d0 [ 354.619976][ T253] ip6_route_add+0x1c/0x140 [ 354.619976][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 354.619976][ T253] addrconf_add_dev+0xe2/0x170 [ 354.619976][ T253] inet6_addr_add+0x12f/0xa40 [ 354.619976][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 354.619976][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 354.619976][ T253] netlink_rcv_skb+0x130/0x360 [ 354.619976][ T253] netlink_unicast+0x449/0x710 [ 354.619976][ T253] netlink_sendmsg+0x723/0xbe0 [ 354.619976][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 354.619976][ T253] ___sys_sendmsg+0xee/0x170 [ 354.619976][ T253] __sys_sendmsg+0xcd/0x170 [ 354.619976][ T253] do_syscall_64+0xc6/0x1e0 [ 354.619976][ T253] [ 354.622198][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 354.622198][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 354.622198][ T253] ipv6_find_idev+0x102/0x170 [ 354.622198][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 354.622198][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 354.622198][ T253] netlink_rcv_skb+0x130/0x360 [ 354.622198][ T253] netlink_unicast+0x449/0x710 [ 354.622198][ T253] netlink_sendmsg+0x723/0xbe0 [ 354.622198][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 354.622198][ T253] ___sys_sendmsg+0xee/0x170 [ 354.622198][ T253] __sys_sendmsg+0xcd/0x170 [ 354.622198][ T253] do_syscall_64+0xc6/0x1e0 [ 354.622198][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 354.622198][ T253] [ 354.623950][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 354.623950][ T253] neigh_parms_alloc+0x1e5/0x510 [ 354.623950][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 354.623950][ T253] ipv6_find_idev+0x102/0x170 [ 354.623950][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 354.623950][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 354.623950][ T253] netlink_rcv_skb+0x130/0x360 [ 354.623950][ T253] netlink_unicast+0x449/0x710 [ 354.623950][ T253] netlink_sendmsg+0x723/0xbe0 [ 354.623950][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 354.623950][ T253] ___sys_sendmsg+0xee/0x170 [ 354.623950][ T253] __sys_sendmsg+0xcd/0x170 [ 354.623950][ T253] do_syscall_64+0xc6/0x1e0 [ 354.623950][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 354.623950][ T253] [ 364.706292][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 364.706708][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 364.706708][ T253] dst_init+0x84/0x4a0 [ 364.706708][ T253] dst_alloc+0x97/0x150 [ 364.706708][ T253] ip6_dst_alloc+0x23/0x90 [ 364.706708][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 364.706708][ T253] ip6_pol_route+0x56f/0x840 [ 364.706708][ T253] fib6_rule_lookup+0x334/0x630 [ 364.706708][ T253] ip6_route_output_flags+0x259/0x480 [ 364.706708][ T253] inet6_rtm_getroute+0x980/0xf70 [ 364.706708][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 364.706708][ T253] netlink_rcv_skb+0x130/0x360 [ 364.706708][ T253] netlink_unicast+0x449/0x710 [ 364.706708][ T253] netlink_sendmsg+0x723/0xbe0 [ 364.706708][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 364.706708][ T253] ___sys_sendmsg+0xee/0x170 [ 364.706708][ T253] __sys_sendmsg+0xcd/0x170 [ 364.706708][ T253] do_syscall_64+0xc6/0x1e0 [ 364.706708][ T253] [ 364.708933][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 364.708933][ T253] netdev_get_by_index+0x5e/0x80 [ 364.708933][ T253] fib6_nh_init+0x3d8/0x1580 [ 364.708933][ T253] ip6_route_info_create+0xf18/0x17d0 [ 364.708933][ T253] addrconf_f6i_alloc+0x265/0x560 [ 364.708933][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 364.708933][ T253] addrconf_join_anycast+0x1c0/0x220 [ 364.708933][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 364.708933][ T253] addrconf_dad_completed+0x12b/0xe20 [ 364.708933][ T253] addrconf_dad_begin+0x310/0x670 [ 364.708933][ T253] addrconf_dad_work+0x10b/0xab0 [ 364.708933][ T253] process_one_work+0x84d/0x18a0 [ 364.708933][ T253] worker_thread+0x587/0xd30 [ 364.708933][ T253] kthread+0x28a/0x350 [ 364.708933][ T253] ret_from_fork+0x31/0x70 [ 364.708933][ T253] ret_from_fork_asm+0x1a/0x30 [ 364.708933][ T253] [ 364.711088][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 364.711088][ T253] netdev_get_by_index+0x5e/0x80 [ 364.711088][ T253] fib6_nh_init+0x3d8/0x1580 [ 364.711088][ T253] ip6_route_info_create+0xf18/0x17d0 [ 364.711088][ T253] ip6_route_add+0x1c/0x140 [ 364.711088][ T253] addrconf_prefix_route+0x2a6/0x430 [ 364.711088][ T253] inet6_addr_add+0x4f8/0xa40 [ 364.711088][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 364.711088][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 364.711088][ T253] netlink_rcv_skb+0x130/0x360 [ 364.711088][ T253] netlink_unicast+0x449/0x710 [ 364.711088][ T253] netlink_sendmsg+0x723/0xbe0 [ 364.711088][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 364.711088][ T253] ___sys_sendmsg+0xee/0x170 [ 364.711088][ T253] __sys_sendmsg+0xcd/0x170 [ 364.711088][ T253] do_syscall_64+0xc6/0x1e0 [ 364.711088][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 364.711088][ T253] [ 364.713372][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 364.713372][ T253] netdev_get_by_index+0x5e/0x80 [ 364.713372][ T253] fib6_nh_init+0x3d8/0x1580 [ 364.713372][ T253] ip6_route_info_create+0xf18/0x17d0 [ 364.713372][ T253] addrconf_f6i_alloc+0x315/0x560 [ 364.713372][ T253] ipv6_add_addr+0x411/0x2000 [ 364.713372][ T253] inet6_addr_add+0x30e/0xa40 [ 364.713372][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 364.713372][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 364.713372][ T253] netlink_rcv_skb+0x130/0x360 [ 364.713372][ T253] netlink_unicast+0x449/0x710 [ 364.713372][ T253] netlink_sendmsg+0x723/0xbe0 [ 364.713372][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 364.713372][ T253] ___sys_sendmsg+0xee/0x170 [ 364.713372][ T253] __sys_sendmsg+0xcd/0x170 [ 364.713372][ T253] do_syscall_64+0xc6/0x1e0 [ 364.713372][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 364.713372][ T253] [ 364.715614][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 364.715614][ T253] netdev_get_by_index+0x5e/0x80 [ 364.715614][ T253] fib6_nh_init+0x3d8/0x1580 [ 364.715614][ T253] ip6_route_info_create+0xf18/0x17d0 [ 364.715614][ T253] ip6_route_add+0x1c/0x140 [ 364.715614][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 364.715614][ T253] addrconf_add_dev+0xe2/0x170 [ 364.715614][ T253] inet6_addr_add+0x12f/0xa40 [ 364.715614][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 364.715614][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 364.715614][ T253] netlink_rcv_skb+0x130/0x360 [ 364.715614][ T253] netlink_unicast+0x449/0x710 [ 364.715614][ T253] netlink_sendmsg+0x723/0xbe0 [ 364.715614][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 364.715614][ T253] ___sys_sendmsg+0xee/0x170 [ 364.715614][ T253] __sys_sendmsg+0xcd/0x170 [ 364.715614][ T253] do_syscall_64+0xc6/0x1e0 [ 364.715614][ T253] [ 364.717836][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 364.717836][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 364.717836][ T253] ipv6_find_idev+0x102/0x170 [ 364.717836][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 364.717836][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 364.717836][ T253] netlink_rcv_skb+0x130/0x360 [ 364.717836][ T253] netlink_unicast+0x449/0x710 [ 364.717836][ T253] netlink_sendmsg+0x723/0xbe0 [ 364.717836][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 364.717836][ T253] ___sys_sendmsg+0xee/0x170 [ 364.717836][ T253] __sys_sendmsg+0xcd/0x170 [ 364.717836][ T253] do_syscall_64+0xc6/0x1e0 [ 364.717836][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 364.717836][ T253] [ 364.719562][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 364.719562][ T253] neigh_parms_alloc+0x1e5/0x510 [ 364.719562][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 364.719562][ T253] ipv6_find_idev+0x102/0x170 [ 364.719562][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 364.719562][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 364.719562][ T253] netlink_rcv_skb+0x130/0x360 [ 364.719562][ T253] netlink_unicast+0x449/0x710 [ 364.719562][ T253] netlink_sendmsg+0x723/0xbe0 [ 364.719562][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 364.719562][ T253] ___sys_sendmsg+0xee/0x170 [ 364.719562][ T253] __sys_sendmsg+0xcd/0x170 [ 364.719562][ T253] do_syscall_64+0xc6/0x1e0 [ 364.719562][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 364.719562][ T253] [ 374.962327][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 374.962794][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 374.962794][ T253] dst_init+0x84/0x4a0 [ 374.962794][ T253] dst_alloc+0x97/0x150 [ 374.962794][ T253] ip6_dst_alloc+0x23/0x90 [ 374.962794][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 374.962794][ T253] ip6_pol_route+0x56f/0x840 [ 374.962794][ T253] fib6_rule_lookup+0x334/0x630 [ 374.962794][ T253] ip6_route_output_flags+0x259/0x480 [ 374.962794][ T253] inet6_rtm_getroute+0x980/0xf70 [ 374.962794][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 374.962794][ T253] netlink_rcv_skb+0x130/0x360 [ 374.962794][ T253] netlink_unicast+0x449/0x710 [ 374.962794][ T253] netlink_sendmsg+0x723/0xbe0 [ 374.962794][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 374.962794][ T253] ___sys_sendmsg+0xee/0x170 [ 374.962794][ T253] __sys_sendmsg+0xcd/0x170 [ 374.962794][ T253] do_syscall_64+0xc6/0x1e0 [ 374.962794][ T253] [ 374.965127][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 374.965127][ T253] netdev_get_by_index+0x5e/0x80 [ 374.965127][ T253] fib6_nh_init+0x3d8/0x1580 [ 374.965127][ T253] ip6_route_info_create+0xf18/0x17d0 [ 374.965127][ T253] addrconf_f6i_alloc+0x265/0x560 [ 374.965127][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 374.965127][ T253] addrconf_join_anycast+0x1c0/0x220 [ 374.965127][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 374.965127][ T253] addrconf_dad_completed+0x12b/0xe20 [ 374.965127][ T253] addrconf_dad_begin+0x310/0x670 [ 374.965127][ T253] addrconf_dad_work+0x10b/0xab0 [ 374.965127][ T253] process_one_work+0x84d/0x18a0 [ 374.965127][ T253] worker_thread+0x587/0xd30 [ 374.965127][ T253] kthread+0x28a/0x350 [ 374.965127][ T253] ret_from_fork+0x31/0x70 [ 374.965127][ T253] ret_from_fork_asm+0x1a/0x30 [ 374.965127][ T253] [ 374.967298][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 374.967298][ T253] netdev_get_by_index+0x5e/0x80 [ 374.967298][ T253] fib6_nh_init+0x3d8/0x1580 [ 374.967298][ T253] ip6_route_info_create+0xf18/0x17d0 [ 374.967298][ T253] ip6_route_add+0x1c/0x140 [ 374.967298][ T253] addrconf_prefix_route+0x2a6/0x430 [ 374.967298][ T253] inet6_addr_add+0x4f8/0xa40 [ 374.967298][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 374.967298][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 374.967298][ T253] netlink_rcv_skb+0x130/0x360 [ 374.967298][ T253] netlink_unicast+0x449/0x710 [ 374.967298][ T253] netlink_sendmsg+0x723/0xbe0 [ 374.967298][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 374.967298][ T253] ___sys_sendmsg+0xee/0x170 [ 374.967298][ T253] __sys_sendmsg+0xcd/0x170 [ 374.967298][ T253] do_syscall_64+0xc6/0x1e0 [ 374.967298][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 374.967298][ T253] [ 374.969566][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 374.969566][ T253] netdev_get_by_index+0x5e/0x80 [ 374.969566][ T253] fib6_nh_init+0x3d8/0x1580 [ 374.969566][ T253] ip6_route_info_create+0xf18/0x17d0 [ 374.969566][ T253] addrconf_f6i_alloc+0x315/0x560 [ 374.969566][ T253] ipv6_add_addr+0x411/0x2000 [ 374.969566][ T253] inet6_addr_add+0x30e/0xa40 [ 374.969566][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 374.969566][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 374.969566][ T253] netlink_rcv_skb+0x130/0x360 [ 374.969566][ T253] netlink_unicast+0x449/0x710 [ 374.969566][ T253] netlink_sendmsg+0x723/0xbe0 [ 374.969566][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 374.969566][ T253] ___sys_sendmsg+0xee/0x170 [ 374.969566][ T253] __sys_sendmsg+0xcd/0x170 [ 374.969566][ T253] do_syscall_64+0xc6/0x1e0 [ 374.969566][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 374.969566][ T253] [ 374.971855][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 374.971855][ T253] netdev_get_by_index+0x5e/0x80 [ 374.971855][ T253] fib6_nh_init+0x3d8/0x1580 [ 374.971855][ T253] ip6_route_info_create+0xf18/0x17d0 [ 374.971855][ T253] ip6_route_add+0x1c/0x140 [ 374.971855][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 374.971855][ T253] addrconf_add_dev+0xe2/0x170 [ 374.971855][ T253] inet6_addr_add+0x12f/0xa40 [ 374.971855][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 374.971855][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 374.971855][ T253] netlink_rcv_skb+0x130/0x360 [ 374.971855][ T253] netlink_unicast+0x449/0x710 [ 374.971855][ T253] netlink_sendmsg+0x723/0xbe0 [ 374.971855][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 374.971855][ T253] ___sys_sendmsg+0xee/0x170 [ 374.971855][ T253] __sys_sendmsg+0xcd/0x170 [ 374.971855][ T253] do_syscall_64+0xc6/0x1e0 [ 374.971855][ T253] [ 374.974071][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 374.974071][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 374.974071][ T253] ipv6_find_idev+0x102/0x170 [ 374.974071][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 374.974071][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 374.974071][ T253] netlink_rcv_skb+0x130/0x360 [ 374.974071][ T253] netlink_unicast+0x449/0x710 [ 374.974071][ T253] netlink_sendmsg+0x723/0xbe0 [ 374.974071][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 374.974071][ T253] ___sys_sendmsg+0xee/0x170 [ 374.974071][ T253] __sys_sendmsg+0xcd/0x170 [ 374.974071][ T253] do_syscall_64+0xc6/0x1e0 [ 374.974071][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 374.974071][ T253] [ 374.975825][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 374.975825][ T253] neigh_parms_alloc+0x1e5/0x510 [ 374.975825][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 374.975825][ T253] ipv6_find_idev+0x102/0x170 [ 374.975825][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 374.975825][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 374.975825][ T253] netlink_rcv_skb+0x130/0x360 [ 374.975825][ T253] netlink_unicast+0x449/0x710 [ 374.975825][ T253] netlink_sendmsg+0x723/0xbe0 [ 374.975825][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 374.975825][ T253] ___sys_sendmsg+0xee/0x170 [ 374.975825][ T253] __sys_sendmsg+0xcd/0x170 [ 374.975825][ T253] do_syscall_64+0xc6/0x1e0 [ 374.975825][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 374.975825][ T253] [ 385.218286][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 385.218725][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 385.218725][ T253] dst_init+0x84/0x4a0 [ 385.218725][ T253] dst_alloc+0x97/0x150 [ 385.218725][ T253] ip6_dst_alloc+0x23/0x90 [ 385.218725][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 385.218725][ T253] ip6_pol_route+0x56f/0x840 [ 385.218725][ T253] fib6_rule_lookup+0x334/0x630 [ 385.218725][ T253] ip6_route_output_flags+0x259/0x480 [ 385.218725][ T253] inet6_rtm_getroute+0x980/0xf70 [ 385.218725][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 385.218725][ T253] netlink_rcv_skb+0x130/0x360 [ 385.218725][ T253] netlink_unicast+0x449/0x710 [ 385.218725][ T253] netlink_sendmsg+0x723/0xbe0 [ 385.218725][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 385.218725][ T253] ___sys_sendmsg+0xee/0x170 [ 385.218725][ T253] __sys_sendmsg+0xcd/0x170 [ 385.218725][ T253] do_syscall_64+0xc6/0x1e0 [ 385.218725][ T253] [ 385.220928][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 385.220928][ T253] netdev_get_by_index+0x5e/0x80 [ 385.220928][ T253] fib6_nh_init+0x3d8/0x1580 [ 385.220928][ T253] ip6_route_info_create+0xf18/0x17d0 [ 385.220928][ T253] addrconf_f6i_alloc+0x265/0x560 [ 385.220928][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 385.220928][ T253] addrconf_join_anycast+0x1c0/0x220 [ 385.220928][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 385.220928][ T253] addrconf_dad_completed+0x12b/0xe20 [ 385.220928][ T253] addrconf_dad_begin+0x310/0x670 [ 385.220928][ T253] addrconf_dad_work+0x10b/0xab0 [ 385.220928][ T253] process_one_work+0x84d/0x18a0 [ 385.220928][ T253] worker_thread+0x587/0xd30 [ 385.220928][ T253] kthread+0x28a/0x350 [ 385.220928][ T253] ret_from_fork+0x31/0x70 [ 385.220928][ T253] ret_from_fork_asm+0x1a/0x30 [ 385.220928][ T253] [ 385.223100][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 385.223100][ T253] netdev_get_by_index+0x5e/0x80 [ 385.223100][ T253] fib6_nh_init+0x3d8/0x1580 [ 385.223100][ T253] ip6_route_info_create+0xf18/0x17d0 [ 385.223100][ T253] ip6_route_add+0x1c/0x140 [ 385.223100][ T253] addrconf_prefix_route+0x2a6/0x430 [ 385.223100][ T253] inet6_addr_add+0x4f8/0xa40 [ 385.223100][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 385.223100][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 385.223100][ T253] netlink_rcv_skb+0x130/0x360 [ 385.223100][ T253] netlink_unicast+0x449/0x710 [ 385.223100][ T253] netlink_sendmsg+0x723/0xbe0 [ 385.223100][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 385.223100][ T253] ___sys_sendmsg+0xee/0x170 [ 385.223100][ T253] __sys_sendmsg+0xcd/0x170 [ 385.223100][ T253] do_syscall_64+0xc6/0x1e0 [ 385.223100][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 385.223100][ T253] [ 385.225384][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 385.225384][ T253] netdev_get_by_index+0x5e/0x80 [ 385.225384][ T253] fib6_nh_init+0x3d8/0x1580 [ 385.225384][ T253] ip6_route_info_create+0xf18/0x17d0 [ 385.225384][ T253] addrconf_f6i_alloc+0x315/0x560 [ 385.225384][ T253] ipv6_add_addr+0x411/0x2000 [ 385.225384][ T253] inet6_addr_add+0x30e/0xa40 [ 385.225384][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 385.225384][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 385.225384][ T253] netlink_rcv_skb+0x130/0x360 [ 385.225384][ T253] netlink_unicast+0x449/0x710 [ 385.225384][ T253] netlink_sendmsg+0x723/0xbe0 [ 385.225384][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 385.225384][ T253] ___sys_sendmsg+0xee/0x170 [ 385.225384][ T253] __sys_sendmsg+0xcd/0x170 [ 385.225384][ T253] do_syscall_64+0xc6/0x1e0 [ 385.225384][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 385.225384][ T253] [ 385.227676][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 385.227676][ T253] netdev_get_by_index+0x5e/0x80 [ 385.227676][ T253] fib6_nh_init+0x3d8/0x1580 [ 385.227676][ T253] ip6_route_info_create+0xf18/0x17d0 [ 385.227676][ T253] ip6_route_add+0x1c/0x140 [ 385.227676][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 385.227676][ T253] addrconf_add_dev+0xe2/0x170 [ 385.227676][ T253] inet6_addr_add+0x12f/0xa40 [ 385.227676][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 385.227676][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 385.227676][ T253] netlink_rcv_skb+0x130/0x360 [ 385.227676][ T253] netlink_unicast+0x449/0x710 [ 385.227676][ T253] netlink_sendmsg+0x723/0xbe0 [ 385.227676][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 385.227676][ T253] ___sys_sendmsg+0xee/0x170 [ 385.227676][ T253] __sys_sendmsg+0xcd/0x170 [ 385.227676][ T253] do_syscall_64+0xc6/0x1e0 [ 385.227676][ T253] [ 385.229910][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 385.229910][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 385.229910][ T253] ipv6_find_idev+0x102/0x170 [ 385.229910][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 385.229910][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 385.229910][ T253] netlink_rcv_skb+0x130/0x360 [ 385.229910][ T253] netlink_unicast+0x449/0x710 [ 385.229910][ T253] netlink_sendmsg+0x723/0xbe0 [ 385.229910][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 385.229910][ T253] ___sys_sendmsg+0xee/0x170 [ 385.229910][ T253] __sys_sendmsg+0xcd/0x170 [ 385.229910][ T253] do_syscall_64+0xc6/0x1e0 [ 385.229910][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 385.229910][ T253] [ 385.231661][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 385.231661][ T253] neigh_parms_alloc+0x1e5/0x510 [ 385.231661][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 385.231661][ T253] ipv6_find_idev+0x102/0x170 [ 385.231661][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 385.231661][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 385.231661][ T253] netlink_rcv_skb+0x130/0x360 [ 385.231661][ T253] netlink_unicast+0x449/0x710 [ 385.231661][ T253] netlink_sendmsg+0x723/0xbe0 [ 385.231661][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 385.231661][ T253] ___sys_sendmsg+0xee/0x170 [ 385.231661][ T253] __sys_sendmsg+0xcd/0x170 [ 385.231661][ T253] do_syscall_64+0xc6/0x1e0 [ 385.231661][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 385.231661][ T253] [ 395.474366][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 395.474797][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 395.474797][ T253] dst_init+0x84/0x4a0 [ 395.474797][ T253] dst_alloc+0x97/0x150 [ 395.474797][ T253] ip6_dst_alloc+0x23/0x90 [ 395.474797][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 395.474797][ T253] ip6_pol_route+0x56f/0x840 [ 395.474797][ T253] fib6_rule_lookup+0x334/0x630 [ 395.474797][ T253] ip6_route_output_flags+0x259/0x480 [ 395.474797][ T253] inet6_rtm_getroute+0x980/0xf70 [ 395.474797][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 395.474797][ T253] netlink_rcv_skb+0x130/0x360 [ 395.474797][ T253] netlink_unicast+0x449/0x710 [ 395.474797][ T253] netlink_sendmsg+0x723/0xbe0 [ 395.474797][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 395.474797][ T253] ___sys_sendmsg+0xee/0x170 [ 395.474797][ T253] __sys_sendmsg+0xcd/0x170 [ 395.474797][ T253] do_syscall_64+0xc6/0x1e0 [ 395.474797][ T253] [ 395.477005][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 395.477005][ T253] netdev_get_by_index+0x5e/0x80 [ 395.477005][ T253] fib6_nh_init+0x3d8/0x1580 [ 395.477005][ T253] ip6_route_info_create+0xf18/0x17d0 [ 395.477005][ T253] addrconf_f6i_alloc+0x265/0x560 [ 395.477005][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 395.477005][ T253] addrconf_join_anycast+0x1c0/0x220 [ 395.477005][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 395.477005][ T253] addrconf_dad_completed+0x12b/0xe20 [ 395.477005][ T253] addrconf_dad_begin+0x310/0x670 [ 395.477005][ T253] addrconf_dad_work+0x10b/0xab0 [ 395.477005][ T253] process_one_work+0x84d/0x18a0 [ 395.477005][ T253] worker_thread+0x587/0xd30 [ 395.477005][ T253] kthread+0x28a/0x350 [ 395.477005][ T253] ret_from_fork+0x31/0x70 [ 395.477005][ T253] ret_from_fork_asm+0x1a/0x30 [ 395.477005][ T253] [ 395.479172][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 395.479172][ T253] netdev_get_by_index+0x5e/0x80 [ 395.479172][ T253] fib6_nh_init+0x3d8/0x1580 [ 395.479172][ T253] ip6_route_info_create+0xf18/0x17d0 [ 395.479172][ T253] ip6_route_add+0x1c/0x140 [ 395.479172][ T253] addrconf_prefix_route+0x2a6/0x430 [ 395.479172][ T253] inet6_addr_add+0x4f8/0xa40 [ 395.479172][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 395.479172][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 395.479172][ T253] netlink_rcv_skb+0x130/0x360 [ 395.479172][ T253] netlink_unicast+0x449/0x710 [ 395.479172][ T253] netlink_sendmsg+0x723/0xbe0 [ 395.479172][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 395.479172][ T253] ___sys_sendmsg+0xee/0x170 [ 395.479172][ T253] __sys_sendmsg+0xcd/0x170 [ 395.479172][ T253] do_syscall_64+0xc6/0x1e0 [ 395.479172][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 395.479172][ T253] [ 395.481445][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 395.481445][ T253] netdev_get_by_index+0x5e/0x80 [ 395.481445][ T253] fib6_nh_init+0x3d8/0x1580 [ 395.481445][ T253] ip6_route_info_create+0xf18/0x17d0 [ 395.481445][ T253] addrconf_f6i_alloc+0x315/0x560 [ 395.481445][ T253] ipv6_add_addr+0x411/0x2000 [ 395.481445][ T253] inet6_addr_add+0x30e/0xa40 [ 395.481445][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 395.481445][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 395.481445][ T253] netlink_rcv_skb+0x130/0x360 [ 395.481445][ T253] netlink_unicast+0x449/0x710 [ 395.481445][ T253] netlink_sendmsg+0x723/0xbe0 [ 395.481445][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 395.481445][ T253] ___sys_sendmsg+0xee/0x170 [ 395.481445][ T253] __sys_sendmsg+0xcd/0x170 [ 395.481445][ T253] do_syscall_64+0xc6/0x1e0 [ 395.481445][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 395.481445][ T253] [ 395.483706][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 395.483706][ T253] netdev_get_by_index+0x5e/0x80 [ 395.483706][ T253] fib6_nh_init+0x3d8/0x1580 [ 395.483706][ T253] ip6_route_info_create+0xf18/0x17d0 [ 395.483706][ T253] ip6_route_add+0x1c/0x140 [ 395.483706][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 395.483706][ T253] addrconf_add_dev+0xe2/0x170 [ 395.483706][ T253] inet6_addr_add+0x12f/0xa40 [ 395.483706][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 395.483706][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 395.483706][ T253] netlink_rcv_skb+0x130/0x360 [ 395.483706][ T253] netlink_unicast+0x449/0x710 [ 395.483706][ T253] netlink_sendmsg+0x723/0xbe0 [ 395.483706][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 395.483706][ T253] ___sys_sendmsg+0xee/0x170 [ 395.483706][ T253] __sys_sendmsg+0xcd/0x170 [ 395.483706][ T253] do_syscall_64+0xc6/0x1e0 [ 395.483706][ T253] [ 395.485921][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 395.485921][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 395.485921][ T253] ipv6_find_idev+0x102/0x170 [ 395.485921][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 395.485921][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 395.485921][ T253] netlink_rcv_skb+0x130/0x360 [ 395.485921][ T253] netlink_unicast+0x449/0x710 [ 395.485921][ T253] netlink_sendmsg+0x723/0xbe0 [ 395.485921][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 395.485921][ T253] ___sys_sendmsg+0xee/0x170 [ 395.485921][ T253] __sys_sendmsg+0xcd/0x170 [ 395.485921][ T253] do_syscall_64+0xc6/0x1e0 [ 395.485921][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 395.485921][ T253] [ 395.487660][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 395.487660][ T253] neigh_parms_alloc+0x1e5/0x510 [ 395.487660][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 395.487660][ T253] ipv6_find_idev+0x102/0x170 [ 395.487660][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 395.487660][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 395.487660][ T253] netlink_rcv_skb+0x130/0x360 [ 395.487660][ T253] netlink_unicast+0x449/0x710 [ 395.487660][ T253] netlink_sendmsg+0x723/0xbe0 [ 395.487660][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 395.487660][ T253] ___sys_sendmsg+0xee/0x170 [ 395.487660][ T253] __sys_sendmsg+0xcd/0x170 [ 395.487660][ T253] do_syscall_64+0xc6/0x1e0 [ 395.487660][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 395.487660][ T253] [ 405.562332][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 405.562821][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 405.562821][ T253] dst_init+0x84/0x4a0 [ 405.562821][ T253] dst_alloc+0x97/0x150 [ 405.562821][ T253] ip6_dst_alloc+0x23/0x90 [ 405.562821][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 405.562821][ T253] ip6_pol_route+0x56f/0x840 [ 405.562821][ T253] fib6_rule_lookup+0x334/0x630 [ 405.562821][ T253] ip6_route_output_flags+0x259/0x480 [ 405.562821][ T253] inet6_rtm_getroute+0x980/0xf70 [ 405.562821][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 405.562821][ T253] netlink_rcv_skb+0x130/0x360 [ 405.562821][ T253] netlink_unicast+0x449/0x710 [ 405.562821][ T253] netlink_sendmsg+0x723/0xbe0 [ 405.562821][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 405.562821][ T253] ___sys_sendmsg+0xee/0x170 [ 405.562821][ T253] __sys_sendmsg+0xcd/0x170 [ 405.562821][ T253] do_syscall_64+0xc6/0x1e0 [ 405.562821][ T253] [ 405.565022][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 405.565022][ T253] netdev_get_by_index+0x5e/0x80 [ 405.565022][ T253] fib6_nh_init+0x3d8/0x1580 [ 405.565022][ T253] ip6_route_info_create+0xf18/0x17d0 [ 405.565022][ T253] addrconf_f6i_alloc+0x265/0x560 [ 405.565022][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 405.565022][ T253] addrconf_join_anycast+0x1c0/0x220 [ 405.565022][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 405.565022][ T253] addrconf_dad_completed+0x12b/0xe20 [ 405.565022][ T253] addrconf_dad_begin+0x310/0x670 [ 405.565022][ T253] addrconf_dad_work+0x10b/0xab0 [ 405.565022][ T253] process_one_work+0x84d/0x18a0 [ 405.565022][ T253] worker_thread+0x587/0xd30 [ 405.565022][ T253] kthread+0x28a/0x350 [ 405.565022][ T253] ret_from_fork+0x31/0x70 [ 405.565022][ T253] ret_from_fork_asm+0x1a/0x30 [ 405.565022][ T253] [ 405.567167][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 405.567167][ T253] netdev_get_by_index+0x5e/0x80 [ 405.567167][ T253] fib6_nh_init+0x3d8/0x1580 [ 405.567167][ T253] ip6_route_info_create+0xf18/0x17d0 [ 405.567167][ T253] ip6_route_add+0x1c/0x140 [ 405.567167][ T253] addrconf_prefix_route+0x2a6/0x430 [ 405.567167][ T253] inet6_addr_add+0x4f8/0xa40 [ 405.567167][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 405.567167][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 405.567167][ T253] netlink_rcv_skb+0x130/0x360 [ 405.567167][ T253] netlink_unicast+0x449/0x710 [ 405.567167][ T253] netlink_sendmsg+0x723/0xbe0 [ 405.567167][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 405.567167][ T253] ___sys_sendmsg+0xee/0x170 [ 405.567167][ T253] __sys_sendmsg+0xcd/0x170 [ 405.567167][ T253] do_syscall_64+0xc6/0x1e0 [ 405.567167][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 405.567167][ T253] [ 405.569428][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 405.569428][ T253] netdev_get_by_index+0x5e/0x80 [ 405.569428][ T253] fib6_nh_init+0x3d8/0x1580 [ 405.569428][ T253] ip6_route_info_create+0xf18/0x17d0 [ 405.569428][ T253] addrconf_f6i_alloc+0x315/0x560 [ 405.569428][ T253] ipv6_add_addr+0x411/0x2000 [ 405.569428][ T253] inet6_addr_add+0x30e/0xa40 [ 405.569428][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 405.569428][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 405.569428][ T253] netlink_rcv_skb+0x130/0x360 [ 405.569428][ T253] netlink_unicast+0x449/0x710 [ 405.569428][ T253] netlink_sendmsg+0x723/0xbe0 [ 405.569428][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 405.569428][ T253] ___sys_sendmsg+0xee/0x170 [ 405.569428][ T253] __sys_sendmsg+0xcd/0x170 [ 405.569428][ T253] do_syscall_64+0xc6/0x1e0 [ 405.569428][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 405.569428][ T253] [ 405.571741][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 405.571741][ T253] netdev_get_by_index+0x5e/0x80 [ 405.571741][ T253] fib6_nh_init+0x3d8/0x1580 [ 405.571741][ T253] ip6_route_info_create+0xf18/0x17d0 [ 405.571741][ T253] ip6_route_add+0x1c/0x140 [ 405.571741][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 405.571741][ T253] addrconf_add_dev+0xe2/0x170 [ 405.571741][ T253] inet6_addr_add+0x12f/0xa40 [ 405.571741][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 405.571741][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 405.571741][ T253] netlink_rcv_skb+0x130/0x360 [ 405.571741][ T253] netlink_unicast+0x449/0x710 [ 405.571741][ T253] netlink_sendmsg+0x723/0xbe0 [ 405.571741][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 405.571741][ T253] ___sys_sendmsg+0xee/0x170 [ 405.571741][ T253] __sys_sendmsg+0xcd/0x170 [ 405.571741][ T253] do_syscall_64+0xc6/0x1e0 [ 405.571741][ T253] [ 405.573950][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 405.573950][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 405.573950][ T253] ipv6_find_idev+0x102/0x170 [ 405.573950][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 405.573950][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 405.573950][ T253] netlink_rcv_skb+0x130/0x360 [ 405.573950][ T253] netlink_unicast+0x449/0x710 [ 405.573950][ T253] netlink_sendmsg+0x723/0xbe0 [ 405.573950][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 405.573950][ T253] ___sys_sendmsg+0xee/0x170 [ 405.573950][ T253] __sys_sendmsg+0xcd/0x170 [ 405.573950][ T253] do_syscall_64+0xc6/0x1e0 [ 405.573950][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 405.573950][ T253] [ 405.575676][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 405.575676][ T253] neigh_parms_alloc+0x1e5/0x510 [ 405.575676][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 405.575676][ T253] ipv6_find_idev+0x102/0x170 [ 405.575676][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 405.575676][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 405.575676][ T253] netlink_rcv_skb+0x130/0x360 [ 405.575676][ T253] netlink_unicast+0x449/0x710 [ 405.575676][ T253] netlink_sendmsg+0x723/0xbe0 [ 405.575676][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 405.575676][ T253] ___sys_sendmsg+0xee/0x170 [ 405.575676][ T253] __sys_sendmsg+0xcd/0x170 [ 405.575676][ T253] do_syscall_64+0xc6/0x1e0 [ 405.575676][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 405.575676][ T253] [ 415.818282][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 415.818741][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 415.818741][ T253] dst_init+0x84/0x4a0 [ 415.818741][ T253] dst_alloc+0x97/0x150 [ 415.818741][ T253] ip6_dst_alloc+0x23/0x90 [ 415.818741][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 415.818741][ T253] ip6_pol_route+0x56f/0x840 [ 415.818741][ T253] fib6_rule_lookup+0x334/0x630 [ 415.818741][ T253] ip6_route_output_flags+0x259/0x480 [ 415.818741][ T253] inet6_rtm_getroute+0x980/0xf70 [ 415.818741][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 415.818741][ T253] netlink_rcv_skb+0x130/0x360 [ 415.818741][ T253] netlink_unicast+0x449/0x710 [ 415.818741][ T253] netlink_sendmsg+0x723/0xbe0 [ 415.818741][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 415.818741][ T253] ___sys_sendmsg+0xee/0x170 [ 415.818741][ T253] __sys_sendmsg+0xcd/0x170 [ 415.818741][ T253] do_syscall_64+0xc6/0x1e0 [ 415.818741][ T253] [ 415.820996][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 415.820996][ T253] netdev_get_by_index+0x5e/0x80 [ 415.820996][ T253] fib6_nh_init+0x3d8/0x1580 [ 415.820996][ T253] ip6_route_info_create+0xf18/0x17d0 [ 415.820996][ T253] addrconf_f6i_alloc+0x265/0x560 [ 415.820996][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 415.820996][ T253] addrconf_join_anycast+0x1c0/0x220 [ 415.820996][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 415.820996][ T253] addrconf_dad_completed+0x12b/0xe20 [ 415.820996][ T253] addrconf_dad_begin+0x310/0x670 [ 415.820996][ T253] addrconf_dad_work+0x10b/0xab0 [ 415.820996][ T253] process_one_work+0x84d/0x18a0 [ 415.820996][ T253] worker_thread+0x587/0xd30 [ 415.820996][ T253] kthread+0x28a/0x350 [ 415.820996][ T253] ret_from_fork+0x31/0x70 [ 415.820996][ T253] ret_from_fork_asm+0x1a/0x30 [ 415.820996][ T253] [ 415.823165][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 415.823165][ T253] netdev_get_by_index+0x5e/0x80 [ 415.823165][ T253] fib6_nh_init+0x3d8/0x1580 [ 415.823165][ T253] ip6_route_info_create+0xf18/0x17d0 [ 415.823165][ T253] ip6_route_add+0x1c/0x140 [ 415.823165][ T253] addrconf_prefix_route+0x2a6/0x430 [ 415.823165][ T253] inet6_addr_add+0x4f8/0xa40 [ 415.823165][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 415.823165][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 415.823165][ T253] netlink_rcv_skb+0x130/0x360 [ 415.823165][ T253] netlink_unicast+0x449/0x710 [ 415.823165][ T253] netlink_sendmsg+0x723/0xbe0 [ 415.823165][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 415.823165][ T253] ___sys_sendmsg+0xee/0x170 [ 415.823165][ T253] __sys_sendmsg+0xcd/0x170 [ 415.823165][ T253] do_syscall_64+0xc6/0x1e0 [ 415.823165][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 415.823165][ T253] [ 415.825448][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 415.825448][ T253] netdev_get_by_index+0x5e/0x80 [ 415.825448][ T253] fib6_nh_init+0x3d8/0x1580 [ 415.825448][ T253] ip6_route_info_create+0xf18/0x17d0 [ 415.825448][ T253] addrconf_f6i_alloc+0x315/0x560 [ 415.825448][ T253] ipv6_add_addr+0x411/0x2000 [ 415.825448][ T253] inet6_addr_add+0x30e/0xa40 [ 415.825448][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 415.825448][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 415.825448][ T253] netlink_rcv_skb+0x130/0x360 [ 415.825448][ T253] netlink_unicast+0x449/0x710 [ 415.825448][ T253] netlink_sendmsg+0x723/0xbe0 [ 415.825448][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 415.825448][ T253] ___sys_sendmsg+0xee/0x170 [ 415.825448][ T253] __sys_sendmsg+0xcd/0x170 [ 415.825448][ T253] do_syscall_64+0xc6/0x1e0 [ 415.825448][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 415.825448][ T253] [ 415.827747][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 415.827747][ T253] netdev_get_by_index+0x5e/0x80 [ 415.827747][ T253] fib6_nh_init+0x3d8/0x1580 [ 415.827747][ T253] ip6_route_info_create+0xf18/0x17d0 [ 415.827747][ T253] ip6_route_add+0x1c/0x140 [ 415.827747][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 415.827747][ T253] addrconf_add_dev+0xe2/0x170 [ 415.827747][ T253] inet6_addr_add+0x12f/0xa40 [ 415.827747][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 415.827747][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 415.827747][ T253] netlink_rcv_skb+0x130/0x360 [ 415.827747][ T253] netlink_unicast+0x449/0x710 [ 415.827747][ T253] netlink_sendmsg+0x723/0xbe0 [ 415.827747][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 415.827747][ T253] ___sys_sendmsg+0xee/0x170 [ 415.827747][ T253] __sys_sendmsg+0xcd/0x170 [ 415.827747][ T253] do_syscall_64+0xc6/0x1e0 [ 415.827747][ T253] [ 415.829996][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 415.829996][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 415.829996][ T253] ipv6_find_idev+0x102/0x170 [ 415.829996][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 415.829996][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 415.829996][ T253] netlink_rcv_skb+0x130/0x360 [ 415.829996][ T253] netlink_unicast+0x449/0x710 [ 415.829996][ T253] netlink_sendmsg+0x723/0xbe0 [ 415.829996][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 415.829996][ T253] ___sys_sendmsg+0xee/0x170 [ 415.829996][ T253] __sys_sendmsg+0xcd/0x170 [ 415.829996][ T253] do_syscall_64+0xc6/0x1e0 [ 415.829996][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 415.829996][ T253] [ 415.831750][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 415.831750][ T253] neigh_parms_alloc+0x1e5/0x510 [ 415.831750][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 415.831750][ T253] ipv6_find_idev+0x102/0x170 [ 415.831750][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 415.831750][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 415.831750][ T253] netlink_rcv_skb+0x130/0x360 [ 415.831750][ T253] netlink_unicast+0x449/0x710 [ 415.831750][ T253] netlink_sendmsg+0x723/0xbe0 [ 415.831750][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 415.831750][ T253] ___sys_sendmsg+0xee/0x170 [ 415.831750][ T253] __sys_sendmsg+0xcd/0x170 [ 415.831750][ T253] do_syscall_64+0xc6/0x1e0 [ 415.831750][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 415.831750][ T253] [ 426.074277][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 426.074750][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 426.074750][ T253] dst_init+0x84/0x4a0 [ 426.074750][ T253] dst_alloc+0x97/0x150 [ 426.074750][ T253] ip6_dst_alloc+0x23/0x90 [ 426.074750][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 426.074750][ T253] ip6_pol_route+0x56f/0x840 [ 426.074750][ T253] fib6_rule_lookup+0x334/0x630 [ 426.074750][ T253] ip6_route_output_flags+0x259/0x480 [ 426.074750][ T253] inet6_rtm_getroute+0x980/0xf70 [ 426.074750][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 426.074750][ T253] netlink_rcv_skb+0x130/0x360 [ 426.074750][ T253] netlink_unicast+0x449/0x710 [ 426.074750][ T253] netlink_sendmsg+0x723/0xbe0 [ 426.074750][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 426.074750][ T253] ___sys_sendmsg+0xee/0x170 [ 426.074750][ T253] __sys_sendmsg+0xcd/0x170 [ 426.074750][ T253] do_syscall_64+0xc6/0x1e0 [ 426.074750][ T253] [ 426.077072][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 426.077072][ T253] netdev_get_by_index+0x5e/0x80 [ 426.077072][ T253] fib6_nh_init+0x3d8/0x1580 [ 426.077072][ T253] ip6_route_info_create+0xf18/0x17d0 [ 426.077072][ T253] addrconf_f6i_alloc+0x265/0x560 [ 426.077072][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 426.077072][ T253] addrconf_join_anycast+0x1c0/0x220 [ 426.077072][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 426.077072][ T253] addrconf_dad_completed+0x12b/0xe20 [ 426.077072][ T253] addrconf_dad_begin+0x310/0x670 [ 426.077072][ T253] addrconf_dad_work+0x10b/0xab0 [ 426.077072][ T253] process_one_work+0x84d/0x18a0 [ 426.077072][ T253] worker_thread+0x587/0xd30 [ 426.077072][ T253] kthread+0x28a/0x350 [ 426.077072][ T253] ret_from_fork+0x31/0x70 [ 426.077072][ T253] ret_from_fork_asm+0x1a/0x30 [ 426.077072][ T253] [ 426.079338][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 426.079338][ T253] netdev_get_by_index+0x5e/0x80 [ 426.079338][ T253] fib6_nh_init+0x3d8/0x1580 [ 426.079338][ T253] ip6_route_info_create+0xf18/0x17d0 [ 426.079338][ T253] ip6_route_add+0x1c/0x140 [ 426.079338][ T253] addrconf_prefix_route+0x2a6/0x430 [ 426.079338][ T253] inet6_addr_add+0x4f8/0xa40 [ 426.079338][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 426.079338][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 426.079338][ T253] netlink_rcv_skb+0x130/0x360 [ 426.079338][ T253] netlink_unicast+0x449/0x710 [ 426.079338][ T253] netlink_sendmsg+0x723/0xbe0 [ 426.079338][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 426.079338][ T253] ___sys_sendmsg+0xee/0x170 [ 426.079338][ T253] __sys_sendmsg+0xcd/0x170 [ 426.079338][ T253] do_syscall_64+0xc6/0x1e0 [ 426.079338][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 426.079338][ T253] [ 426.081717][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 426.081717][ T253] netdev_get_by_index+0x5e/0x80 [ 426.081717][ T253] fib6_nh_init+0x3d8/0x1580 [ 426.081717][ T253] ip6_route_info_create+0xf18/0x17d0 [ 426.081717][ T253] addrconf_f6i_alloc+0x315/0x560 [ 426.081717][ T253] ipv6_add_addr+0x411/0x2000 [ 426.081717][ T253] inet6_addr_add+0x30e/0xa40 [ 426.081717][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 426.081717][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 426.081717][ T253] netlink_rcv_skb+0x130/0x360 [ 426.081717][ T253] netlink_unicast+0x449/0x710 [ 426.081717][ T253] netlink_sendmsg+0x723/0xbe0 [ 426.081717][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 426.081717][ T253] ___sys_sendmsg+0xee/0x170 [ 426.081717][ T253] __sys_sendmsg+0xcd/0x170 [ 426.081717][ T253] do_syscall_64+0xc6/0x1e0 [ 426.081717][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 426.081717][ T253] [ 426.084086][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 426.084086][ T253] netdev_get_by_index+0x5e/0x80 [ 426.084086][ T253] fib6_nh_init+0x3d8/0x1580 [ 426.084086][ T253] ip6_route_info_create+0xf18/0x17d0 [ 426.084086][ T253] ip6_route_add+0x1c/0x140 [ 426.084086][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 426.084086][ T253] addrconf_add_dev+0xe2/0x170 [ 426.084086][ T253] inet6_addr_add+0x12f/0xa40 [ 426.084086][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 426.084086][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 426.084086][ T253] netlink_rcv_skb+0x130/0x360 [ 426.084086][ T253] netlink_unicast+0x449/0x710 [ 426.084086][ T253] netlink_sendmsg+0x723/0xbe0 [ 426.084086][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 426.084086][ T253] ___sys_sendmsg+0xee/0x170 [ 426.084086][ T253] __sys_sendmsg+0xcd/0x170 [ 426.084086][ T253] do_syscall_64+0xc6/0x1e0 [ 426.084086][ T253] [ 426.086405][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 426.086405][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 426.086405][ T253] ipv6_find_idev+0x102/0x170 [ 426.086405][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 426.086405][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 426.086405][ T253] netlink_rcv_skb+0x130/0x360 [ 426.086405][ T253] netlink_unicast+0x449/0x710 [ 426.086405][ T253] netlink_sendmsg+0x723/0xbe0 [ 426.086405][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 426.086405][ T253] ___sys_sendmsg+0xee/0x170 [ 426.086405][ T253] __sys_sendmsg+0xcd/0x170 [ 426.086405][ T253] do_syscall_64+0xc6/0x1e0 [ 426.086405][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 426.086405][ T253] [ 426.088252][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 426.088252][ T253] neigh_parms_alloc+0x1e5/0x510 [ 426.088252][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 426.088252][ T253] ipv6_find_idev+0x102/0x170 [ 426.088252][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 426.088252][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 426.088252][ T253] netlink_rcv_skb+0x130/0x360 [ 426.088252][ T253] netlink_unicast+0x449/0x710 [ 426.088252][ T253] netlink_sendmsg+0x723/0xbe0 [ 426.088252][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 426.088252][ T253] ___sys_sendmsg+0xee/0x170 [ 426.088252][ T253] __sys_sendmsg+0xcd/0x170 [ 426.088252][ T253] do_syscall_64+0xc6/0x1e0 [ 426.088252][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 426.088252][ T253] [ 436.330350][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 436.330798][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 436.330798][ T253] dst_init+0x84/0x4a0 [ 436.330798][ T253] dst_alloc+0x97/0x150 [ 436.330798][ T253] ip6_dst_alloc+0x23/0x90 [ 436.330798][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 436.330798][ T253] ip6_pol_route+0x56f/0x840 [ 436.330798][ T253] fib6_rule_lookup+0x334/0x630 [ 436.330798][ T253] ip6_route_output_flags+0x259/0x480 [ 436.330798][ T253] inet6_rtm_getroute+0x980/0xf70 [ 436.330798][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 436.330798][ T253] netlink_rcv_skb+0x130/0x360 [ 436.330798][ T253] netlink_unicast+0x449/0x710 [ 436.330798][ T253] netlink_sendmsg+0x723/0xbe0 [ 436.330798][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 436.330798][ T253] ___sys_sendmsg+0xee/0x170 [ 436.330798][ T253] __sys_sendmsg+0xcd/0x170 [ 436.330798][ T253] do_syscall_64+0xc6/0x1e0 [ 436.330798][ T253] [ 436.333042][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 436.333042][ T253] netdev_get_by_index+0x5e/0x80 [ 436.333042][ T253] fib6_nh_init+0x3d8/0x1580 [ 436.333042][ T253] ip6_route_info_create+0xf18/0x17d0 [ 436.333042][ T253] addrconf_f6i_alloc+0x265/0x560 [ 436.333042][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 436.333042][ T253] addrconf_join_anycast+0x1c0/0x220 [ 436.333042][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 436.333042][ T253] addrconf_dad_completed+0x12b/0xe20 [ 436.333042][ T253] addrconf_dad_begin+0x310/0x670 [ 436.333042][ T253] addrconf_dad_work+0x10b/0xab0 [ 436.333042][ T253] process_one_work+0x84d/0x18a0 [ 436.333042][ T253] worker_thread+0x587/0xd30 [ 436.333042][ T253] kthread+0x28a/0x350 [ 436.333042][ T253] ret_from_fork+0x31/0x70 [ 436.333042][ T253] ret_from_fork_asm+0x1a/0x30 [ 436.333042][ T253] [ 436.335217][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 436.335217][ T253] netdev_get_by_index+0x5e/0x80 [ 436.335217][ T253] fib6_nh_init+0x3d8/0x1580 [ 436.335217][ T253] ip6_route_info_create+0xf18/0x17d0 [ 436.335217][ T253] ip6_route_add+0x1c/0x140 [ 436.335217][ T253] addrconf_prefix_route+0x2a6/0x430 [ 436.335217][ T253] inet6_addr_add+0x4f8/0xa40 [ 436.335217][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 436.335217][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 436.335217][ T253] netlink_rcv_skb+0x130/0x360 [ 436.335217][ T253] netlink_unicast+0x449/0x710 [ 436.335217][ T253] netlink_sendmsg+0x723/0xbe0 [ 436.335217][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 436.335217][ T253] ___sys_sendmsg+0xee/0x170 [ 436.335217][ T253] __sys_sendmsg+0xcd/0x170 [ 436.335217][ T253] do_syscall_64+0xc6/0x1e0 [ 436.335217][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 436.335217][ T253] [ 436.337498][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 436.337498][ T253] netdev_get_by_index+0x5e/0x80 [ 436.337498][ T253] fib6_nh_init+0x3d8/0x1580 [ 436.337498][ T253] ip6_route_info_create+0xf18/0x17d0 [ 436.337498][ T253] addrconf_f6i_alloc+0x315/0x560 [ 436.337498][ T253] ipv6_add_addr+0x411/0x2000 [ 436.337498][ T253] inet6_addr_add+0x30e/0xa40 [ 436.337498][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 436.337498][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 436.337498][ T253] netlink_rcv_skb+0x130/0x360 [ 436.337498][ T253] netlink_unicast+0x449/0x710 [ 436.337498][ T253] netlink_sendmsg+0x723/0xbe0 [ 436.337498][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 436.337498][ T253] ___sys_sendmsg+0xee/0x170 [ 436.337498][ T253] __sys_sendmsg+0xcd/0x170 [ 436.337498][ T253] do_syscall_64+0xc6/0x1e0 [ 436.337498][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 436.337498][ T253] [ 436.339761][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 436.339761][ T253] netdev_get_by_index+0x5e/0x80 [ 436.339761][ T253] fib6_nh_init+0x3d8/0x1580 [ 436.339761][ T253] ip6_route_info_create+0xf18/0x17d0 [ 436.339761][ T253] ip6_route_add+0x1c/0x140 [ 436.339761][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 436.339761][ T253] addrconf_add_dev+0xe2/0x170 [ 436.339761][ T253] inet6_addr_add+0x12f/0xa40 [ 436.339761][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 436.339761][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 436.339761][ T253] netlink_rcv_skb+0x130/0x360 [ 436.339761][ T253] netlink_unicast+0x449/0x710 [ 436.339761][ T253] netlink_sendmsg+0x723/0xbe0 [ 436.339761][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 436.339761][ T253] ___sys_sendmsg+0xee/0x170 [ 436.339761][ T253] __sys_sendmsg+0xcd/0x170 [ 436.339761][ T253] do_syscall_64+0xc6/0x1e0 [ 436.339761][ T253] [ 436.341984][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 436.341984][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 436.341984][ T253] ipv6_find_idev+0x102/0x170 [ 436.341984][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 436.341984][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 436.341984][ T253] netlink_rcv_skb+0x130/0x360 [ 436.341984][ T253] netlink_unicast+0x449/0x710 [ 436.341984][ T253] netlink_sendmsg+0x723/0xbe0 [ 436.341984][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 436.341984][ T253] ___sys_sendmsg+0xee/0x170 [ 436.341984][ T253] __sys_sendmsg+0xcd/0x170 [ 436.341984][ T253] do_syscall_64+0xc6/0x1e0 [ 436.341984][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 436.341984][ T253] [ 436.343736][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 436.343736][ T253] neigh_parms_alloc+0x1e5/0x510 [ 436.343736][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 436.343736][ T253] ipv6_find_idev+0x102/0x170 [ 436.343736][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 436.343736][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 436.343736][ T253] netlink_rcv_skb+0x130/0x360 [ 436.343736][ T253] netlink_unicast+0x449/0x710 [ 436.343736][ T253] netlink_sendmsg+0x723/0xbe0 [ 436.343736][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 436.343736][ T253] ___sys_sendmsg+0xee/0x170 [ 436.343736][ T253] __sys_sendmsg+0xcd/0x170 [ 436.343736][ T253] do_syscall_64+0xc6/0x1e0 [ 436.343736][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 436.343736][ T253] [ 446.594355][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 446.594797][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 446.594797][ T253] dst_init+0x84/0x4a0 [ 446.594797][ T253] dst_alloc+0x97/0x150 [ 446.594797][ T253] ip6_dst_alloc+0x23/0x90 [ 446.594797][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 446.594797][ T253] ip6_pol_route+0x56f/0x840 [ 446.594797][ T253] fib6_rule_lookup+0x334/0x630 [ 446.594797][ T253] ip6_route_output_flags+0x259/0x480 [ 446.594797][ T253] inet6_rtm_getroute+0x980/0xf70 [ 446.594797][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 446.594797][ T253] netlink_rcv_skb+0x130/0x360 [ 446.594797][ T253] netlink_unicast+0x449/0x710 [ 446.594797][ T253] netlink_sendmsg+0x723/0xbe0 [ 446.594797][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 446.594797][ T253] ___sys_sendmsg+0xee/0x170 [ 446.594797][ T253] __sys_sendmsg+0xcd/0x170 [ 446.594797][ T253] do_syscall_64+0xc6/0x1e0 [ 446.594797][ T253] [ 446.597021][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 446.597021][ T253] netdev_get_by_index+0x5e/0x80 [ 446.597021][ T253] fib6_nh_init+0x3d8/0x1580 [ 446.597021][ T253] ip6_route_info_create+0xf18/0x17d0 [ 446.597021][ T253] addrconf_f6i_alloc+0x265/0x560 [ 446.597021][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 446.597021][ T253] addrconf_join_anycast+0x1c0/0x220 [ 446.597021][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 446.597021][ T253] addrconf_dad_completed+0x12b/0xe20 [ 446.597021][ T253] addrconf_dad_begin+0x310/0x670 [ 446.597021][ T253] addrconf_dad_work+0x10b/0xab0 [ 446.597021][ T253] process_one_work+0x84d/0x18a0 [ 446.597021][ T253] worker_thread+0x587/0xd30 [ 446.597021][ T253] kthread+0x28a/0x350 [ 446.597021][ T253] ret_from_fork+0x31/0x70 [ 446.597021][ T253] ret_from_fork_asm+0x1a/0x30 [ 446.597021][ T253] [ 446.599211][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 446.599211][ T253] netdev_get_by_index+0x5e/0x80 [ 446.599211][ T253] fib6_nh_init+0x3d8/0x1580 [ 446.599211][ T253] ip6_route_info_create+0xf18/0x17d0 [ 446.599211][ T253] ip6_route_add+0x1c/0x140 [ 446.599211][ T253] addrconf_prefix_route+0x2a6/0x430 [ 446.599211][ T253] inet6_addr_add+0x4f8/0xa40 [ 446.599211][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 446.599211][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 446.599211][ T253] netlink_rcv_skb+0x130/0x360 [ 446.599211][ T253] netlink_unicast+0x449/0x710 [ 446.599211][ T253] netlink_sendmsg+0x723/0xbe0 [ 446.599211][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 446.599211][ T253] ___sys_sendmsg+0xee/0x170 [ 446.599211][ T253] __sys_sendmsg+0xcd/0x170 [ 446.599211][ T253] do_syscall_64+0xc6/0x1e0 [ 446.599211][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 446.599211][ T253] [ 446.601482][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 446.601482][ T253] netdev_get_by_index+0x5e/0x80 [ 446.601482][ T253] fib6_nh_init+0x3d8/0x1580 [ 446.601482][ T253] ip6_route_info_create+0xf18/0x17d0 [ 446.601482][ T253] addrconf_f6i_alloc+0x315/0x560 [ 446.601482][ T253] ipv6_add_addr+0x411/0x2000 [ 446.601482][ T253] inet6_addr_add+0x30e/0xa40 [ 446.601482][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 446.601482][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 446.601482][ T253] netlink_rcv_skb+0x130/0x360 [ 446.601482][ T253] netlink_unicast+0x449/0x710 [ 446.601482][ T253] netlink_sendmsg+0x723/0xbe0 [ 446.601482][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 446.601482][ T253] ___sys_sendmsg+0xee/0x170 [ 446.601482][ T253] __sys_sendmsg+0xcd/0x170 [ 446.601482][ T253] do_syscall_64+0xc6/0x1e0 [ 446.601482][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 446.601482][ T253] [ 446.603764][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 446.603764][ T253] netdev_get_by_index+0x5e/0x80 [ 446.603764][ T253] fib6_nh_init+0x3d8/0x1580 [ 446.603764][ T253] ip6_route_info_create+0xf18/0x17d0 [ 446.603764][ T253] ip6_route_add+0x1c/0x140 [ 446.603764][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 446.603764][ T253] addrconf_add_dev+0xe2/0x170 [ 446.603764][ T253] inet6_addr_add+0x12f/0xa40 [ 446.603764][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 446.603764][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 446.603764][ T253] netlink_rcv_skb+0x130/0x360 [ 446.603764][ T253] netlink_unicast+0x449/0x710 [ 446.603764][ T253] netlink_sendmsg+0x723/0xbe0 [ 446.603764][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 446.603764][ T253] ___sys_sendmsg+0xee/0x170 [ 446.603764][ T253] __sys_sendmsg+0xcd/0x170 [ 446.603764][ T253] do_syscall_64+0xc6/0x1e0 [ 446.603764][ T253] [ 446.605991][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 446.605991][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 446.605991][ T253] ipv6_find_idev+0x102/0x170 [ 446.605991][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 446.605991][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 446.605991][ T253] netlink_rcv_skb+0x130/0x360 [ 446.605991][ T253] netlink_unicast+0x449/0x710 [ 446.605991][ T253] netlink_sendmsg+0x723/0xbe0 [ 446.605991][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 446.605991][ T253] ___sys_sendmsg+0xee/0x170 [ 446.605991][ T253] __sys_sendmsg+0xcd/0x170 [ 446.605991][ T253] do_syscall_64+0xc6/0x1e0 [ 446.605991][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 446.605991][ T253] [ 446.607751][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 446.607751][ T253] neigh_parms_alloc+0x1e5/0x510 [ 446.607751][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 446.607751][ T253] ipv6_find_idev+0x102/0x170 [ 446.607751][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 446.607751][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 446.607751][ T253] netlink_rcv_skb+0x130/0x360 [ 446.607751][ T253] netlink_unicast+0x449/0x710 [ 446.607751][ T253] netlink_sendmsg+0x723/0xbe0 [ 446.607751][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 446.607751][ T253] ___sys_sendmsg+0xee/0x170 [ 446.607751][ T253] __sys_sendmsg+0xcd/0x170 [ 446.607751][ T253] do_syscall_64+0xc6/0x1e0 [ 446.607751][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 446.607751][ T253] [ 456.850251][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 456.850694][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 456.850694][ T253] dst_init+0x84/0x4a0 [ 456.850694][ T253] dst_alloc+0x97/0x150 [ 456.850694][ T253] ip6_dst_alloc+0x23/0x90 [ 456.850694][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 456.850694][ T253] ip6_pol_route+0x56f/0x840 [ 456.850694][ T253] fib6_rule_lookup+0x334/0x630 [ 456.850694][ T253] ip6_route_output_flags+0x259/0x480 [ 456.850694][ T253] inet6_rtm_getroute+0x980/0xf70 [ 456.850694][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 456.850694][ T253] netlink_rcv_skb+0x130/0x360 [ 456.850694][ T253] netlink_unicast+0x449/0x710 [ 456.850694][ T253] netlink_sendmsg+0x723/0xbe0 [ 456.850694][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 456.850694][ T253] ___sys_sendmsg+0xee/0x170 [ 456.850694][ T253] __sys_sendmsg+0xcd/0x170 [ 456.850694][ T253] do_syscall_64+0xc6/0x1e0 [ 456.850694][ T253] [ 456.853031][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 456.853031][ T253] netdev_get_by_index+0x5e/0x80 [ 456.853031][ T253] fib6_nh_init+0x3d8/0x1580 [ 456.853031][ T253] ip6_route_info_create+0xf18/0x17d0 [ 456.853031][ T253] addrconf_f6i_alloc+0x265/0x560 [ 456.853031][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 456.853031][ T253] addrconf_join_anycast+0x1c0/0x220 [ 456.853031][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 456.853031][ T253] addrconf_dad_completed+0x12b/0xe20 [ 456.853031][ T253] addrconf_dad_begin+0x310/0x670 [ 456.853031][ T253] addrconf_dad_work+0x10b/0xab0 [ 456.853031][ T253] process_one_work+0x84d/0x18a0 [ 456.853031][ T253] worker_thread+0x587/0xd30 [ 456.853031][ T253] kthread+0x28a/0x350 [ 456.853031][ T253] ret_from_fork+0x31/0x70 [ 456.853031][ T253] ret_from_fork_asm+0x1a/0x30 [ 456.853031][ T253] [ 456.855238][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 456.855238][ T253] netdev_get_by_index+0x5e/0x80 [ 456.855238][ T253] fib6_nh_init+0x3d8/0x1580 [ 456.855238][ T253] ip6_route_info_create+0xf18/0x17d0 [ 456.855238][ T253] ip6_route_add+0x1c/0x140 [ 456.855238][ T253] addrconf_prefix_route+0x2a6/0x430 [ 456.855238][ T253] inet6_addr_add+0x4f8/0xa40 [ 456.855238][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 456.855238][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 456.855238][ T253] netlink_rcv_skb+0x130/0x360 [ 456.855238][ T253] netlink_unicast+0x449/0x710 [ 456.855238][ T253] netlink_sendmsg+0x723/0xbe0 [ 456.855238][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 456.855238][ T253] ___sys_sendmsg+0xee/0x170 [ 456.855238][ T253] __sys_sendmsg+0xcd/0x170 [ 456.855238][ T253] do_syscall_64+0xc6/0x1e0 [ 456.855238][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 456.855238][ T253] [ 456.857512][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 456.857512][ T253] netdev_get_by_index+0x5e/0x80 [ 456.857512][ T253] fib6_nh_init+0x3d8/0x1580 [ 456.857512][ T253] ip6_route_info_create+0xf18/0x17d0 [ 456.857512][ T253] addrconf_f6i_alloc+0x315/0x560 [ 456.857512][ T253] ipv6_add_addr+0x411/0x2000 [ 456.857512][ T253] inet6_addr_add+0x30e/0xa40 [ 456.857512][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 456.857512][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 456.857512][ T253] netlink_rcv_skb+0x130/0x360 [ 456.857512][ T253] netlink_unicast+0x449/0x710 [ 456.857512][ T253] netlink_sendmsg+0x723/0xbe0 [ 456.857512][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 456.857512][ T253] ___sys_sendmsg+0xee/0x170 [ 456.857512][ T253] __sys_sendmsg+0xcd/0x170 [ 456.857512][ T253] do_syscall_64+0xc6/0x1e0 [ 456.857512][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 456.857512][ T253] [ 456.859786][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 456.859786][ T253] netdev_get_by_index+0x5e/0x80 [ 456.859786][ T253] fib6_nh_init+0x3d8/0x1580 [ 456.859786][ T253] ip6_route_info_create+0xf18/0x17d0 [ 456.859786][ T253] ip6_route_add+0x1c/0x140 [ 456.859786][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 456.859786][ T253] addrconf_add_dev+0xe2/0x170 [ 456.859786][ T253] inet6_addr_add+0x12f/0xa40 [ 456.859786][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 456.859786][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 456.859786][ T253] netlink_rcv_skb+0x130/0x360 [ 456.859786][ T253] netlink_unicast+0x449/0x710 [ 456.859786][ T253] netlink_sendmsg+0x723/0xbe0 [ 456.859786][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 456.859786][ T253] ___sys_sendmsg+0xee/0x170 [ 456.859786][ T253] __sys_sendmsg+0xcd/0x170 [ 456.859786][ T253] do_syscall_64+0xc6/0x1e0 [ 456.859786][ T253] [ 456.862128][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 456.862128][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 456.862128][ T253] ipv6_find_idev+0x102/0x170 [ 456.862128][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 456.862128][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 456.862128][ T253] netlink_rcv_skb+0x130/0x360 [ 456.862128][ T253] netlink_unicast+0x449/0x710 [ 456.862128][ T253] netlink_sendmsg+0x723/0xbe0 [ 456.862128][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 456.862128][ T253] ___sys_sendmsg+0xee/0x170 [ 456.862128][ T253] __sys_sendmsg+0xcd/0x170 [ 456.862128][ T253] do_syscall_64+0xc6/0x1e0 [ 456.862128][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 456.862128][ T253] [ 456.863912][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 456.863912][ T253] neigh_parms_alloc+0x1e5/0x510 [ 456.863912][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 456.863912][ T253] ipv6_find_idev+0x102/0x170 [ 456.863912][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 456.863912][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 456.863912][ T253] netlink_rcv_skb+0x130/0x360 [ 456.863912][ T253] netlink_unicast+0x449/0x710 [ 456.863912][ T253] netlink_sendmsg+0x723/0xbe0 [ 456.863912][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 456.863912][ T253] ___sys_sendmsg+0xee/0x170 [ 456.863912][ T253] __sys_sendmsg+0xcd/0x170 [ 456.863912][ T253] do_syscall_64+0xc6/0x1e0 [ 456.863912][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 456.863912][ T253] [ 467.010274][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 467.010703][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 467.010703][ T253] dst_init+0x84/0x4a0 [ 467.010703][ T253] dst_alloc+0x97/0x150 [ 467.010703][ T253] ip6_dst_alloc+0x23/0x90 [ 467.010703][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 467.010703][ T253] ip6_pol_route+0x56f/0x840 [ 467.010703][ T253] fib6_rule_lookup+0x334/0x630 [ 467.010703][ T253] ip6_route_output_flags+0x259/0x480 [ 467.010703][ T253] inet6_rtm_getroute+0x980/0xf70 [ 467.010703][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 467.010703][ T253] netlink_rcv_skb+0x130/0x360 [ 467.010703][ T253] netlink_unicast+0x449/0x710 [ 467.010703][ T253] netlink_sendmsg+0x723/0xbe0 [ 467.010703][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 467.010703][ T253] ___sys_sendmsg+0xee/0x170 [ 467.010703][ T253] __sys_sendmsg+0xcd/0x170 [ 467.010703][ T253] do_syscall_64+0xc6/0x1e0 [ 467.010703][ T253] [ 467.012945][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 467.012945][ T253] netdev_get_by_index+0x5e/0x80 [ 467.012945][ T253] fib6_nh_init+0x3d8/0x1580 [ 467.012945][ T253] ip6_route_info_create+0xf18/0x17d0 [ 467.012945][ T253] addrconf_f6i_alloc+0x265/0x560 [ 467.012945][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 467.012945][ T253] addrconf_join_anycast+0x1c0/0x220 [ 467.012945][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 467.012945][ T253] addrconf_dad_completed+0x12b/0xe20 [ 467.012945][ T253] addrconf_dad_begin+0x310/0x670 [ 467.012945][ T253] addrconf_dad_work+0x10b/0xab0 [ 467.012945][ T253] process_one_work+0x84d/0x18a0 [ 467.012945][ T253] worker_thread+0x587/0xd30 [ 467.012945][ T253] kthread+0x28a/0x350 [ 467.012945][ T253] ret_from_fork+0x31/0x70 [ 467.012945][ T253] ret_from_fork_asm+0x1a/0x30 [ 467.012945][ T253] [ 467.015118][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 467.015118][ T253] netdev_get_by_index+0x5e/0x80 [ 467.015118][ T253] fib6_nh_init+0x3d8/0x1580 [ 467.015118][ T253] ip6_route_info_create+0xf18/0x17d0 [ 467.015118][ T253] ip6_route_add+0x1c/0x140 [ 467.015118][ T253] addrconf_prefix_route+0x2a6/0x430 [ 467.015118][ T253] inet6_addr_add+0x4f8/0xa40 [ 467.015118][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 467.015118][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 467.015118][ T253] netlink_rcv_skb+0x130/0x360 [ 467.015118][ T253] netlink_unicast+0x449/0x710 [ 467.015118][ T253] netlink_sendmsg+0x723/0xbe0 [ 467.015118][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 467.015118][ T253] ___sys_sendmsg+0xee/0x170 [ 467.015118][ T253] __sys_sendmsg+0xcd/0x170 [ 467.015118][ T253] do_syscall_64+0xc6/0x1e0 [ 467.015118][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 467.015118][ T253] [ 467.017786][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 467.017786][ T253] netdev_get_by_index+0x5e/0x80 [ 467.017786][ T253] fib6_nh_init+0x3d8/0x1580 [ 467.017786][ T253] ip6_route_info_create+0xf18/0x17d0 [ 467.017786][ T253] addrconf_f6i_alloc+0x315/0x560 [ 467.017786][ T253] ipv6_add_addr+0x411/0x2000 [ 467.017786][ T253] inet6_addr_add+0x30e/0xa40 [ 467.017786][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 467.017786][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 467.017786][ T253] netlink_rcv_skb+0x130/0x360 [ 467.017786][ T253] netlink_unicast+0x449/0x710 [ 467.017786][ T253] netlink_sendmsg+0x723/0xbe0 [ 467.017786][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 467.017786][ T253] ___sys_sendmsg+0xee/0x170 [ 467.017786][ T253] __sys_sendmsg+0xcd/0x170 [ 467.017786][ T253] do_syscall_64+0xc6/0x1e0 [ 467.017786][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 467.017786][ T253] [ 467.020053][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 467.020053][ T253] netdev_get_by_index+0x5e/0x80 [ 467.020053][ T253] fib6_nh_init+0x3d8/0x1580 [ 467.020053][ T253] ip6_route_info_create+0xf18/0x17d0 [ 467.020053][ T253] ip6_route_add+0x1c/0x140 [ 467.020053][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 467.020053][ T253] addrconf_add_dev+0xe2/0x170 [ 467.020053][ T253] inet6_addr_add+0x12f/0xa40 [ 467.020053][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 467.020053][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 467.020053][ T253] netlink_rcv_skb+0x130/0x360 [ 467.020053][ T253] netlink_unicast+0x449/0x710 [ 467.020053][ T253] netlink_sendmsg+0x723/0xbe0 [ 467.020053][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 467.020053][ T253] ___sys_sendmsg+0xee/0x170 [ 467.020053][ T253] __sys_sendmsg+0xcd/0x170 [ 467.020053][ T253] do_syscall_64+0xc6/0x1e0 [ 467.020053][ T253] [ 467.022283][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 467.022283][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 467.022283][ T253] ipv6_find_idev+0x102/0x170 [ 467.022283][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 467.022283][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 467.022283][ T253] netlink_rcv_skb+0x130/0x360 [ 467.022283][ T253] netlink_unicast+0x449/0x710 [ 467.022283][ T253] netlink_sendmsg+0x723/0xbe0 [ 467.022283][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 467.022283][ T253] ___sys_sendmsg+0xee/0x170 [ 467.022283][ T253] __sys_sendmsg+0xcd/0x170 [ 467.022283][ T253] do_syscall_64+0xc6/0x1e0 [ 467.022283][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 467.022283][ T253] [ 467.024026][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 467.024026][ T253] neigh_parms_alloc+0x1e5/0x510 [ 467.024026][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 467.024026][ T253] ipv6_find_idev+0x102/0x170 [ 467.024026][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 467.024026][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 467.024026][ T253] netlink_rcv_skb+0x130/0x360 [ 467.024026][ T253] netlink_unicast+0x449/0x710 [ 467.024026][ T253] netlink_sendmsg+0x723/0xbe0 [ 467.024026][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 467.024026][ T253] ___sys_sendmsg+0xee/0x170 [ 467.024026][ T253] __sys_sendmsg+0xcd/0x170 [ 467.024026][ T253] do_syscall_64+0xc6/0x1e0 [ 467.024026][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 467.024026][ T253] [ 477.274340][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 477.274793][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 477.274793][ T253] dst_init+0x84/0x4a0 [ 477.274793][ T253] dst_alloc+0x97/0x150 [ 477.274793][ T253] ip6_dst_alloc+0x23/0x90 [ 477.274793][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 477.274793][ T253] ip6_pol_route+0x56f/0x840 [ 477.274793][ T253] fib6_rule_lookup+0x334/0x630 [ 477.274793][ T253] ip6_route_output_flags+0x259/0x480 [ 477.274793][ T253] inet6_rtm_getroute+0x980/0xf70 [ 477.274793][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 477.274793][ T253] netlink_rcv_skb+0x130/0x360 [ 477.274793][ T253] netlink_unicast+0x449/0x710 [ 477.274793][ T253] netlink_sendmsg+0x723/0xbe0 [ 477.274793][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 477.274793][ T253] ___sys_sendmsg+0xee/0x170 [ 477.274793][ T253] __sys_sendmsg+0xcd/0x170 [ 477.274793][ T253] do_syscall_64+0xc6/0x1e0 [ 477.274793][ T253] [ 477.277044][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 477.277044][ T253] netdev_get_by_index+0x5e/0x80 [ 477.277044][ T253] fib6_nh_init+0x3d8/0x1580 [ 477.277044][ T253] ip6_route_info_create+0xf18/0x17d0 [ 477.277044][ T253] addrconf_f6i_alloc+0x265/0x560 [ 477.277044][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 477.277044][ T253] addrconf_join_anycast+0x1c0/0x220 [ 477.277044][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 477.277044][ T253] addrconf_dad_completed+0x12b/0xe20 [ 477.277044][ T253] addrconf_dad_begin+0x310/0x670 [ 477.277044][ T253] addrconf_dad_work+0x10b/0xab0 [ 477.277044][ T253] process_one_work+0x84d/0x18a0 [ 477.277044][ T253] worker_thread+0x587/0xd30 [ 477.277044][ T253] kthread+0x28a/0x350 [ 477.277044][ T253] ret_from_fork+0x31/0x70 [ 477.277044][ T253] ret_from_fork_asm+0x1a/0x30 [ 477.277044][ T253] [ 477.279226][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 477.279226][ T253] netdev_get_by_index+0x5e/0x80 [ 477.279226][ T253] fib6_nh_init+0x3d8/0x1580 [ 477.279226][ T253] ip6_route_info_create+0xf18/0x17d0 [ 477.279226][ T253] ip6_route_add+0x1c/0x140 [ 477.279226][ T253] addrconf_prefix_route+0x2a6/0x430 [ 477.279226][ T253] inet6_addr_add+0x4f8/0xa40 [ 477.279226][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 477.279226][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 477.279226][ T253] netlink_rcv_skb+0x130/0x360 [ 477.279226][ T253] netlink_unicast+0x449/0x710 [ 477.279226][ T253] netlink_sendmsg+0x723/0xbe0 [ 477.279226][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 477.279226][ T253] ___sys_sendmsg+0xee/0x170 [ 477.279226][ T253] __sys_sendmsg+0xcd/0x170 [ 477.279226][ T253] do_syscall_64+0xc6/0x1e0 [ 477.279226][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 477.279226][ T253] [ 477.281496][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 477.281496][ T253] netdev_get_by_index+0x5e/0x80 [ 477.281496][ T253] fib6_nh_init+0x3d8/0x1580 [ 477.281496][ T253] ip6_route_info_create+0xf18/0x17d0 [ 477.281496][ T253] addrconf_f6i_alloc+0x315/0x560 [ 477.281496][ T253] ipv6_add_addr+0x411/0x2000 [ 477.281496][ T253] inet6_addr_add+0x30e/0xa40 [ 477.281496][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 477.281496][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 477.281496][ T253] netlink_rcv_skb+0x130/0x360 [ 477.281496][ T253] netlink_unicast+0x449/0x710 [ 477.281496][ T253] netlink_sendmsg+0x723/0xbe0 [ 477.281496][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 477.281496][ T253] ___sys_sendmsg+0xee/0x170 [ 477.281496][ T253] __sys_sendmsg+0xcd/0x170 [ 477.281496][ T253] do_syscall_64+0xc6/0x1e0 [ 477.281496][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 477.281496][ T253] [ 477.283777][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 477.283777][ T253] netdev_get_by_index+0x5e/0x80 [ 477.283777][ T253] fib6_nh_init+0x3d8/0x1580 [ 477.283777][ T253] ip6_route_info_create+0xf18/0x17d0 [ 477.283777][ T253] ip6_route_add+0x1c/0x140 [ 477.283777][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 477.283777][ T253] addrconf_add_dev+0xe2/0x170 [ 477.283777][ T253] inet6_addr_add+0x12f/0xa40 [ 477.283777][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 477.283777][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 477.283777][ T253] netlink_rcv_skb+0x130/0x360 [ 477.283777][ T253] netlink_unicast+0x449/0x710 [ 477.283777][ T253] netlink_sendmsg+0x723/0xbe0 [ 477.283777][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 477.283777][ T253] ___sys_sendmsg+0xee/0x170 [ 477.283777][ T253] __sys_sendmsg+0xcd/0x170 [ 477.283777][ T253] do_syscall_64+0xc6/0x1e0 [ 477.283777][ T253] [ 477.286013][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 477.286013][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 477.286013][ T253] ipv6_find_idev+0x102/0x170 [ 477.286013][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 477.286013][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 477.286013][ T253] netlink_rcv_skb+0x130/0x360 [ 477.286013][ T253] netlink_unicast+0x449/0x710 [ 477.286013][ T253] netlink_sendmsg+0x723/0xbe0 [ 477.286013][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 477.286013][ T253] ___sys_sendmsg+0xee/0x170 [ 477.286013][ T253] __sys_sendmsg+0xcd/0x170 [ 477.286013][ T253] do_syscall_64+0xc6/0x1e0 [ 477.286013][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 477.286013][ T253] [ 477.287783][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 477.287783][ T253] neigh_parms_alloc+0x1e5/0x510 [ 477.287783][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 477.287783][ T253] ipv6_find_idev+0x102/0x170 [ 477.287783][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 477.287783][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 477.287783][ T253] netlink_rcv_skb+0x130/0x360 [ 477.287783][ T253] netlink_unicast+0x449/0x710 [ 477.287783][ T253] netlink_sendmsg+0x723/0xbe0 [ 477.287783][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 477.287783][ T253] ___sys_sendmsg+0xee/0x170 [ 477.287783][ T253] __sys_sendmsg+0xcd/0x170 [ 477.287783][ T253] do_syscall_64+0xc6/0x1e0 [ 477.287783][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 477.287783][ T253] [ 487.538308][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 487.538733][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 487.538733][ T253] dst_init+0x84/0x4a0 [ 487.538733][ T253] dst_alloc+0x97/0x150 [ 487.538733][ T253] ip6_dst_alloc+0x23/0x90 [ 487.538733][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 487.538733][ T253] ip6_pol_route+0x56f/0x840 [ 487.538733][ T253] fib6_rule_lookup+0x334/0x630 [ 487.538733][ T253] ip6_route_output_flags+0x259/0x480 [ 487.538733][ T253] inet6_rtm_getroute+0x980/0xf70 [ 487.538733][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 487.538733][ T253] netlink_rcv_skb+0x130/0x360 [ 487.538733][ T253] netlink_unicast+0x449/0x710 [ 487.538733][ T253] netlink_sendmsg+0x723/0xbe0 [ 487.538733][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 487.538733][ T253] ___sys_sendmsg+0xee/0x170 [ 487.538733][ T253] __sys_sendmsg+0xcd/0x170 [ 487.538733][ T253] do_syscall_64+0xc6/0x1e0 [ 487.538733][ T253] [ 487.540933][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 487.540933][ T253] netdev_get_by_index+0x5e/0x80 [ 487.540933][ T253] fib6_nh_init+0x3d8/0x1580 [ 487.540933][ T253] ip6_route_info_create+0xf18/0x17d0 [ 487.540933][ T253] addrconf_f6i_alloc+0x265/0x560 [ 487.540933][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 487.540933][ T253] addrconf_join_anycast+0x1c0/0x220 [ 487.540933][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 487.540933][ T253] addrconf_dad_completed+0x12b/0xe20 [ 487.540933][ T253] addrconf_dad_begin+0x310/0x670 [ 487.540933][ T253] addrconf_dad_work+0x10b/0xab0 [ 487.540933][ T253] process_one_work+0x84d/0x18a0 [ 487.540933][ T253] worker_thread+0x587/0xd30 [ 487.540933][ T253] kthread+0x28a/0x350 [ 487.540933][ T253] ret_from_fork+0x31/0x70 [ 487.540933][ T253] ret_from_fork_asm+0x1a/0x30 [ 487.540933][ T253] [ 487.543076][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 487.543076][ T253] netdev_get_by_index+0x5e/0x80 [ 487.543076][ T253] fib6_nh_init+0x3d8/0x1580 [ 487.543076][ T253] ip6_route_info_create+0xf18/0x17d0 [ 487.543076][ T253] ip6_route_add+0x1c/0x140 [ 487.543076][ T253] addrconf_prefix_route+0x2a6/0x430 [ 487.543076][ T253] inet6_addr_add+0x4f8/0xa40 [ 487.543076][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 487.543076][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 487.543076][ T253] netlink_rcv_skb+0x130/0x360 [ 487.543076][ T253] netlink_unicast+0x449/0x710 [ 487.543076][ T253] netlink_sendmsg+0x723/0xbe0 [ 487.543076][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 487.543076][ T253] ___sys_sendmsg+0xee/0x170 [ 487.543076][ T253] __sys_sendmsg+0xcd/0x170 [ 487.543076][ T253] do_syscall_64+0xc6/0x1e0 [ 487.543076][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 487.543076][ T253] [ 487.545327][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 487.545327][ T253] netdev_get_by_index+0x5e/0x80 [ 487.545327][ T253] fib6_nh_init+0x3d8/0x1580 [ 487.545327][ T253] ip6_route_info_create+0xf18/0x17d0 [ 487.545327][ T253] addrconf_f6i_alloc+0x315/0x560 [ 487.545327][ T253] ipv6_add_addr+0x411/0x2000 [ 487.545327][ T253] inet6_addr_add+0x30e/0xa40 [ 487.545327][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 487.545327][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 487.545327][ T253] netlink_rcv_skb+0x130/0x360 [ 487.545327][ T253] netlink_unicast+0x449/0x710 [ 487.545327][ T253] netlink_sendmsg+0x723/0xbe0 [ 487.545327][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 487.545327][ T253] ___sys_sendmsg+0xee/0x170 [ 487.545327][ T253] __sys_sendmsg+0xcd/0x170 [ 487.545327][ T253] do_syscall_64+0xc6/0x1e0 [ 487.545327][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 487.545327][ T253] [ 487.547582][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 487.547582][ T253] netdev_get_by_index+0x5e/0x80 [ 487.547582][ T253] fib6_nh_init+0x3d8/0x1580 [ 487.547582][ T253] ip6_route_info_create+0xf18/0x17d0 [ 487.547582][ T253] ip6_route_add+0x1c/0x140 [ 487.547582][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 487.547582][ T253] addrconf_add_dev+0xe2/0x170 [ 487.547582][ T253] inet6_addr_add+0x12f/0xa40 [ 487.547582][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 487.547582][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 487.547582][ T253] netlink_rcv_skb+0x130/0x360 [ 487.547582][ T253] netlink_unicast+0x449/0x710 [ 487.547582][ T253] netlink_sendmsg+0x723/0xbe0 [ 487.547582][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 487.547582][ T253] ___sys_sendmsg+0xee/0x170 [ 487.547582][ T253] __sys_sendmsg+0xcd/0x170 [ 487.547582][ T253] do_syscall_64+0xc6/0x1e0 [ 487.547582][ T253] [ 487.549796][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 487.549796][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 487.549796][ T253] ipv6_find_idev+0x102/0x170 [ 487.549796][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 487.549796][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 487.549796][ T253] netlink_rcv_skb+0x130/0x360 [ 487.549796][ T253] netlink_unicast+0x449/0x710 [ 487.549796][ T253] netlink_sendmsg+0x723/0xbe0 [ 487.549796][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 487.549796][ T253] ___sys_sendmsg+0xee/0x170 [ 487.549796][ T253] __sys_sendmsg+0xcd/0x170 [ 487.549796][ T253] do_syscall_64+0xc6/0x1e0 [ 487.549796][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 487.549796][ T253] [ 487.551518][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 487.551518][ T253] neigh_parms_alloc+0x1e5/0x510 [ 487.551518][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 487.551518][ T253] ipv6_find_idev+0x102/0x170 [ 487.551518][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 487.551518][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 487.551518][ T253] netlink_rcv_skb+0x130/0x360 [ 487.551518][ T253] netlink_unicast+0x449/0x710 [ 487.551518][ T253] netlink_sendmsg+0x723/0xbe0 [ 487.551518][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 487.551518][ T253] ___sys_sendmsg+0xee/0x170 [ 487.551518][ T253] __sys_sendmsg+0xcd/0x170 [ 487.551518][ T253] do_syscall_64+0xc6/0x1e0 [ 487.551518][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 487.551518][ T253] [ 497.730272][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 497.730791][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 497.730791][ T253] dst_init+0x84/0x4a0 [ 497.730791][ T253] dst_alloc+0x97/0x150 [ 497.730791][ T253] ip6_dst_alloc+0x23/0x90 [ 497.730791][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 497.730791][ T253] ip6_pol_route+0x56f/0x840 [ 497.730791][ T253] fib6_rule_lookup+0x334/0x630 [ 497.730791][ T253] ip6_route_output_flags+0x259/0x480 [ 497.730791][ T253] inet6_rtm_getroute+0x980/0xf70 [ 497.730791][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 497.730791][ T253] netlink_rcv_skb+0x130/0x360 [ 497.730791][ T253] netlink_unicast+0x449/0x710 [ 497.730791][ T253] netlink_sendmsg+0x723/0xbe0 [ 497.730791][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 497.730791][ T253] ___sys_sendmsg+0xee/0x170 [ 497.730791][ T253] __sys_sendmsg+0xcd/0x170 [ 497.730791][ T253] do_syscall_64+0xc6/0x1e0 [ 497.730791][ T253] [ 497.733060][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 497.733060][ T253] netdev_get_by_index+0x5e/0x80 [ 497.733060][ T253] fib6_nh_init+0x3d8/0x1580 [ 497.733060][ T253] ip6_route_info_create+0xf18/0x17d0 [ 497.733060][ T253] addrconf_f6i_alloc+0x265/0x560 [ 497.733060][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 497.733060][ T253] addrconf_join_anycast+0x1c0/0x220 [ 497.733060][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 497.733060][ T253] addrconf_dad_completed+0x12b/0xe20 [ 497.733060][ T253] addrconf_dad_begin+0x310/0x670 [ 497.733060][ T253] addrconf_dad_work+0x10b/0xab0 [ 497.733060][ T253] process_one_work+0x84d/0x18a0 [ 497.733060][ T253] worker_thread+0x587/0xd30 [ 497.733060][ T253] kthread+0x28a/0x350 [ 497.733060][ T253] ret_from_fork+0x31/0x70 [ 497.733060][ T253] ret_from_fork_asm+0x1a/0x30 [ 497.733060][ T253] [ 497.735276][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 497.735276][ T253] netdev_get_by_index+0x5e/0x80 [ 497.735276][ T253] fib6_nh_init+0x3d8/0x1580 [ 497.735276][ T253] ip6_route_info_create+0xf18/0x17d0 [ 497.735276][ T253] ip6_route_add+0x1c/0x140 [ 497.735276][ T253] addrconf_prefix_route+0x2a6/0x430 [ 497.735276][ T253] inet6_addr_add+0x4f8/0xa40 [ 497.735276][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 497.735276][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 497.735276][ T253] netlink_rcv_skb+0x130/0x360 [ 497.735276][ T253] netlink_unicast+0x449/0x710 [ 497.735276][ T253] netlink_sendmsg+0x723/0xbe0 [ 497.735276][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 497.735276][ T253] ___sys_sendmsg+0xee/0x170 [ 497.735276][ T253] __sys_sendmsg+0xcd/0x170 [ 497.735276][ T253] do_syscall_64+0xc6/0x1e0 [ 497.735276][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 497.735276][ T253] [ 497.737574][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 497.737574][ T253] netdev_get_by_index+0x5e/0x80 [ 497.737574][ T253] fib6_nh_init+0x3d8/0x1580 [ 497.737574][ T253] ip6_route_info_create+0xf18/0x17d0 [ 497.737574][ T253] addrconf_f6i_alloc+0x315/0x560 [ 497.737574][ T253] ipv6_add_addr+0x411/0x2000 [ 497.737574][ T253] inet6_addr_add+0x30e/0xa40 [ 497.737574][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 497.737574][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 497.737574][ T253] netlink_rcv_skb+0x130/0x360 [ 497.737574][ T253] netlink_unicast+0x449/0x710 [ 497.737574][ T253] netlink_sendmsg+0x723/0xbe0 [ 497.737574][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 497.737574][ T253] ___sys_sendmsg+0xee/0x170 [ 497.737574][ T253] __sys_sendmsg+0xcd/0x170 [ 497.737574][ T253] do_syscall_64+0xc6/0x1e0 [ 497.737574][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 497.737574][ T253] [ 497.739879][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 497.739879][ T253] netdev_get_by_index+0x5e/0x80 [ 497.739879][ T253] fib6_nh_init+0x3d8/0x1580 [ 497.739879][ T253] ip6_route_info_create+0xf18/0x17d0 [ 497.739879][ T253] ip6_route_add+0x1c/0x140 [ 497.739879][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 497.739879][ T253] addrconf_add_dev+0xe2/0x170 [ 497.739879][ T253] inet6_addr_add+0x12f/0xa40 [ 497.739879][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 497.739879][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 497.739879][ T253] netlink_rcv_skb+0x130/0x360 [ 497.739879][ T253] netlink_unicast+0x449/0x710 [ 497.739879][ T253] netlink_sendmsg+0x723/0xbe0 [ 497.739879][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 497.739879][ T253] ___sys_sendmsg+0xee/0x170 [ 497.739879][ T253] __sys_sendmsg+0xcd/0x170 [ 497.739879][ T253] do_syscall_64+0xc6/0x1e0 [ 497.739879][ T253] [ 497.742161][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 497.742161][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 497.742161][ T253] ipv6_find_idev+0x102/0x170 [ 497.742161][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 497.742161][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 497.742161][ T253] netlink_rcv_skb+0x130/0x360 [ 497.742161][ T253] netlink_unicast+0x449/0x710 [ 497.742161][ T253] netlink_sendmsg+0x723/0xbe0 [ 497.742161][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 497.742161][ T253] ___sys_sendmsg+0xee/0x170 [ 497.742161][ T253] __sys_sendmsg+0xcd/0x170 [ 497.742161][ T253] do_syscall_64+0xc6/0x1e0 [ 497.742161][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 497.742161][ T253] [ 497.744047][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 497.744047][ T253] neigh_parms_alloc+0x1e5/0x510 [ 497.744047][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 497.744047][ T253] ipv6_find_idev+0x102/0x170 [ 497.744047][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 497.744047][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 497.744047][ T253] netlink_rcv_skb+0x130/0x360 [ 497.744047][ T253] netlink_unicast+0x449/0x710 [ 497.744047][ T253] netlink_sendmsg+0x723/0xbe0 [ 497.744047][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 497.744047][ T253] ___sys_sendmsg+0xee/0x170 [ 497.744047][ T253] __sys_sendmsg+0xcd/0x170 [ 497.744047][ T253] do_syscall_64+0xc6/0x1e0 [ 497.744047][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 497.744047][ T253] [ 507.970275][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 507.970710][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 507.970710][ T253] dst_init+0x84/0x4a0 [ 507.970710][ T253] dst_alloc+0x97/0x150 [ 507.970710][ T253] ip6_dst_alloc+0x23/0x90 [ 507.970710][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 507.970710][ T253] ip6_pol_route+0x56f/0x840 [ 507.970710][ T253] fib6_rule_lookup+0x334/0x630 [ 507.970710][ T253] ip6_route_output_flags+0x259/0x480 [ 507.970710][ T253] inet6_rtm_getroute+0x980/0xf70 [ 507.970710][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 507.970710][ T253] netlink_rcv_skb+0x130/0x360 [ 507.970710][ T253] netlink_unicast+0x449/0x710 [ 507.970710][ T253] netlink_sendmsg+0x723/0xbe0 [ 507.970710][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 507.970710][ T253] ___sys_sendmsg+0xee/0x170 [ 507.970710][ T253] __sys_sendmsg+0xcd/0x170 [ 507.970710][ T253] do_syscall_64+0xc6/0x1e0 [ 507.970710][ T253] [ 507.972954][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 507.972954][ T253] netdev_get_by_index+0x5e/0x80 [ 507.972954][ T253] fib6_nh_init+0x3d8/0x1580 [ 507.972954][ T253] ip6_route_info_create+0xf18/0x17d0 [ 507.972954][ T253] addrconf_f6i_alloc+0x265/0x560 [ 507.972954][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 507.972954][ T253] addrconf_join_anycast+0x1c0/0x220 [ 507.972954][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 507.972954][ T253] addrconf_dad_completed+0x12b/0xe20 [ 507.972954][ T253] addrconf_dad_begin+0x310/0x670 [ 507.972954][ T253] addrconf_dad_work+0x10b/0xab0 [ 507.972954][ T253] process_one_work+0x84d/0x18a0 [ 507.972954][ T253] worker_thread+0x587/0xd30 [ 507.972954][ T253] kthread+0x28a/0x350 [ 507.972954][ T253] ret_from_fork+0x31/0x70 [ 507.972954][ T253] ret_from_fork_asm+0x1a/0x30 [ 507.972954][ T253] [ 507.975127][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 507.975127][ T253] netdev_get_by_index+0x5e/0x80 [ 507.975127][ T253] fib6_nh_init+0x3d8/0x1580 [ 507.975127][ T253] ip6_route_info_create+0xf18/0x17d0 [ 507.975127][ T253] ip6_route_add+0x1c/0x140 [ 507.975127][ T253] addrconf_prefix_route+0x2a6/0x430 [ 507.975127][ T253] inet6_addr_add+0x4f8/0xa40 [ 507.975127][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 507.975127][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 507.975127][ T253] netlink_rcv_skb+0x130/0x360 [ 507.975127][ T253] netlink_unicast+0x449/0x710 [ 507.975127][ T253] netlink_sendmsg+0x723/0xbe0 [ 507.975127][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 507.975127][ T253] ___sys_sendmsg+0xee/0x170 [ 507.975127][ T253] __sys_sendmsg+0xcd/0x170 [ 507.975127][ T253] do_syscall_64+0xc6/0x1e0 [ 507.975127][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 507.975127][ T253] [ 507.977412][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 507.977412][ T253] netdev_get_by_index+0x5e/0x80 [ 507.977412][ T253] fib6_nh_init+0x3d8/0x1580 [ 507.977412][ T253] ip6_route_info_create+0xf18/0x17d0 [ 507.977412][ T253] addrconf_f6i_alloc+0x315/0x560 [ 507.977412][ T253] ipv6_add_addr+0x411/0x2000 [ 507.977412][ T253] inet6_addr_add+0x30e/0xa40 [ 507.977412][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 507.977412][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 507.977412][ T253] netlink_rcv_skb+0x130/0x360 [ 507.977412][ T253] netlink_unicast+0x449/0x710 [ 507.977412][ T253] netlink_sendmsg+0x723/0xbe0 [ 507.977412][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 507.977412][ T253] ___sys_sendmsg+0xee/0x170 [ 507.977412][ T253] __sys_sendmsg+0xcd/0x170 [ 507.977412][ T253] do_syscall_64+0xc6/0x1e0 [ 507.977412][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 507.977412][ T253] [ 507.979673][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 507.979673][ T253] netdev_get_by_index+0x5e/0x80 [ 507.979673][ T253] fib6_nh_init+0x3d8/0x1580 [ 507.979673][ T253] ip6_route_info_create+0xf18/0x17d0 [ 507.979673][ T253] ip6_route_add+0x1c/0x140 [ 507.979673][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 507.979673][ T253] addrconf_add_dev+0xe2/0x170 [ 507.979673][ T253] inet6_addr_add+0x12f/0xa40 [ 507.979673][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 507.979673][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 507.979673][ T253] netlink_rcv_skb+0x130/0x360 [ 507.979673][ T253] netlink_unicast+0x449/0x710 [ 507.979673][ T253] netlink_sendmsg+0x723/0xbe0 [ 507.979673][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 507.979673][ T253] ___sys_sendmsg+0xee/0x170 [ 507.979673][ T253] __sys_sendmsg+0xcd/0x170 [ 507.979673][ T253] do_syscall_64+0xc6/0x1e0 [ 507.979673][ T253] [ 507.981880][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 507.981880][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 507.981880][ T253] ipv6_find_idev+0x102/0x170 [ 507.981880][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 507.981880][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 507.981880][ T253] netlink_rcv_skb+0x130/0x360 [ 507.981880][ T253] netlink_unicast+0x449/0x710 [ 507.981880][ T253] netlink_sendmsg+0x723/0xbe0 [ 507.981880][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 507.981880][ T253] ___sys_sendmsg+0xee/0x170 [ 507.981880][ T253] __sys_sendmsg+0xcd/0x170 [ 507.981880][ T253] do_syscall_64+0xc6/0x1e0 [ 507.981880][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 507.981880][ T253] [ 507.983664][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 507.983664][ T253] neigh_parms_alloc+0x1e5/0x510 [ 507.983664][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 507.983664][ T253] ipv6_find_idev+0x102/0x170 [ 507.983664][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 507.983664][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 507.983664][ T253] netlink_rcv_skb+0x130/0x360 [ 507.983664][ T253] netlink_unicast+0x449/0x710 [ 507.983664][ T253] netlink_sendmsg+0x723/0xbe0 [ 507.983664][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 507.983664][ T253] ___sys_sendmsg+0xee/0x170 [ 507.983664][ T253] __sys_sendmsg+0xcd/0x170 [ 507.983664][ T253] do_syscall_64+0xc6/0x1e0 [ 507.983664][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 507.983664][ T253] [ 518.098288][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 518.098771][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 518.098771][ T253] dst_init+0x84/0x4a0 [ 518.098771][ T253] dst_alloc+0x97/0x150 [ 518.098771][ T253] ip6_dst_alloc+0x23/0x90 [ 518.098771][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 518.098771][ T253] ip6_pol_route+0x56f/0x840 [ 518.098771][ T253] fib6_rule_lookup+0x334/0x630 [ 518.098771][ T253] ip6_route_output_flags+0x259/0x480 [ 518.098771][ T253] inet6_rtm_getroute+0x980/0xf70 [ 518.098771][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 518.098771][ T253] netlink_rcv_skb+0x130/0x360 [ 518.098771][ T253] netlink_unicast+0x449/0x710 [ 518.098771][ T253] netlink_sendmsg+0x723/0xbe0 [ 518.098771][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 518.098771][ T253] ___sys_sendmsg+0xee/0x170 [ 518.098771][ T253] __sys_sendmsg+0xcd/0x170 [ 518.098771][ T253] do_syscall_64+0xc6/0x1e0 [ 518.098771][ T253] [ 518.100988][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 518.100988][ T253] netdev_get_by_index+0x5e/0x80 [ 518.100988][ T253] fib6_nh_init+0x3d8/0x1580 [ 518.100988][ T253] ip6_route_info_create+0xf18/0x17d0 [ 518.100988][ T253] addrconf_f6i_alloc+0x265/0x560 [ 518.100988][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 518.100988][ T253] addrconf_join_anycast+0x1c0/0x220 [ 518.100988][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 518.100988][ T253] addrconf_dad_completed+0x12b/0xe20 [ 518.100988][ T253] addrconf_dad_begin+0x310/0x670 [ 518.100988][ T253] addrconf_dad_work+0x10b/0xab0 [ 518.100988][ T253] process_one_work+0x84d/0x18a0 [ 518.100988][ T253] worker_thread+0x587/0xd30 [ 518.100988][ T253] kthread+0x28a/0x350 [ 518.100988][ T253] ret_from_fork+0x31/0x70 [ 518.100988][ T253] ret_from_fork_asm+0x1a/0x30 [ 518.100988][ T253] [ 518.103128][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 518.103128][ T253] netdev_get_by_index+0x5e/0x80 [ 518.103128][ T253] fib6_nh_init+0x3d8/0x1580 [ 518.103128][ T253] ip6_route_info_create+0xf18/0x17d0 [ 518.103128][ T253] ip6_route_add+0x1c/0x140 [ 518.103128][ T253] addrconf_prefix_route+0x2a6/0x430 [ 518.103128][ T253] inet6_addr_add+0x4f8/0xa40 [ 518.103128][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 518.103128][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 518.103128][ T253] netlink_rcv_skb+0x130/0x360 [ 518.103128][ T253] netlink_unicast+0x449/0x710 [ 518.103128][ T253] netlink_sendmsg+0x723/0xbe0 [ 518.103128][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 518.103128][ T253] ___sys_sendmsg+0xee/0x170 [ 518.103128][ T253] __sys_sendmsg+0xcd/0x170 [ 518.103128][ T253] do_syscall_64+0xc6/0x1e0 [ 518.103128][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 518.103128][ T253] [ 518.105365][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 518.105365][ T253] netdev_get_by_index+0x5e/0x80 [ 518.105365][ T253] fib6_nh_init+0x3d8/0x1580 [ 518.105365][ T253] ip6_route_info_create+0xf18/0x17d0 [ 518.105365][ T253] addrconf_f6i_alloc+0x315/0x560 [ 518.105365][ T253] ipv6_add_addr+0x411/0x2000 [ 518.105365][ T253] inet6_addr_add+0x30e/0xa40 [ 518.105365][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 518.105365][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 518.105365][ T253] netlink_rcv_skb+0x130/0x360 [ 518.105365][ T253] netlink_unicast+0x449/0x710 [ 518.105365][ T253] netlink_sendmsg+0x723/0xbe0 [ 518.105365][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 518.105365][ T253] ___sys_sendmsg+0xee/0x170 [ 518.105365][ T253] __sys_sendmsg+0xcd/0x170 [ 518.105365][ T253] do_syscall_64+0xc6/0x1e0 [ 518.105365][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 518.105365][ T253] [ 518.107631][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 518.107631][ T253] netdev_get_by_index+0x5e/0x80 [ 518.107631][ T253] fib6_nh_init+0x3d8/0x1580 [ 518.107631][ T253] ip6_route_info_create+0xf18/0x17d0 [ 518.107631][ T253] ip6_route_add+0x1c/0x140 [ 518.107631][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 518.107631][ T253] addrconf_add_dev+0xe2/0x170 [ 518.107631][ T253] inet6_addr_add+0x12f/0xa40 [ 518.107631][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 518.107631][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 518.107631][ T253] netlink_rcv_skb+0x130/0x360 [ 518.107631][ T253] netlink_unicast+0x449/0x710 [ 518.107631][ T253] netlink_sendmsg+0x723/0xbe0 [ 518.107631][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 518.107631][ T253] ___sys_sendmsg+0xee/0x170 [ 518.107631][ T253] __sys_sendmsg+0xcd/0x170 [ 518.107631][ T253] do_syscall_64+0xc6/0x1e0 [ 518.107631][ T253] [ 518.109822][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 518.109822][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 518.109822][ T253] ipv6_find_idev+0x102/0x170 [ 518.109822][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 518.109822][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 518.109822][ T253] netlink_rcv_skb+0x130/0x360 [ 518.109822][ T253] netlink_unicast+0x449/0x710 [ 518.109822][ T253] netlink_sendmsg+0x723/0xbe0 [ 518.109822][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 518.109822][ T253] ___sys_sendmsg+0xee/0x170 [ 518.109822][ T253] __sys_sendmsg+0xcd/0x170 [ 518.109822][ T253] do_syscall_64+0xc6/0x1e0 [ 518.109822][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 518.109822][ T253] [ 518.111543][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 518.111543][ T253] neigh_parms_alloc+0x1e5/0x510 [ 518.111543][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 518.111543][ T253] ipv6_find_idev+0x102/0x170 [ 518.111543][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 518.111543][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 518.111543][ T253] netlink_rcv_skb+0x130/0x360 [ 518.111543][ T253] netlink_unicast+0x449/0x710 [ 518.111543][ T253] netlink_sendmsg+0x723/0xbe0 [ 518.111543][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 518.111543][ T253] ___sys_sendmsg+0xee/0x170 [ 518.111543][ T253] __sys_sendmsg+0xcd/0x170 [ 518.111543][ T253] do_syscall_64+0xc6/0x1e0 [ 518.111543][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 518.111543][ T253] [ 528.122316][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 528.122757][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 528.122757][ T253] dst_init+0x84/0x4a0 [ 528.122757][ T253] dst_alloc+0x97/0x150 [ 528.122757][ T253] ip6_dst_alloc+0x23/0x90 [ 528.122757][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 528.122757][ T253] ip6_pol_route+0x56f/0x840 [ 528.122757][ T253] fib6_rule_lookup+0x334/0x630 [ 528.122757][ T253] ip6_route_output_flags+0x259/0x480 [ 528.122757][ T253] inet6_rtm_getroute+0x980/0xf70 [ 528.122757][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 528.122757][ T253] netlink_rcv_skb+0x130/0x360 [ 528.122757][ T253] netlink_unicast+0x449/0x710 [ 528.122757][ T253] netlink_sendmsg+0x723/0xbe0 [ 528.122757][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 528.122757][ T253] ___sys_sendmsg+0xee/0x170 [ 528.122757][ T253] __sys_sendmsg+0xcd/0x170 [ 528.122757][ T253] do_syscall_64+0xc6/0x1e0 [ 528.122757][ T253] [ 528.124974][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 528.124974][ T253] netdev_get_by_index+0x5e/0x80 [ 528.124974][ T253] fib6_nh_init+0x3d8/0x1580 [ 528.124974][ T253] ip6_route_info_create+0xf18/0x17d0 [ 528.124974][ T253] addrconf_f6i_alloc+0x265/0x560 [ 528.124974][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 528.124974][ T253] addrconf_join_anycast+0x1c0/0x220 [ 528.124974][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 528.124974][ T253] addrconf_dad_completed+0x12b/0xe20 [ 528.124974][ T253] addrconf_dad_begin+0x310/0x670 [ 528.124974][ T253] addrconf_dad_work+0x10b/0xab0 [ 528.124974][ T253] process_one_work+0x84d/0x18a0 [ 528.124974][ T253] worker_thread+0x587/0xd30 [ 528.124974][ T253] kthread+0x28a/0x350 [ 528.124974][ T253] ret_from_fork+0x31/0x70 [ 528.124974][ T253] ret_from_fork_asm+0x1a/0x30 [ 528.124974][ T253] [ 528.127180][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 528.127180][ T253] netdev_get_by_index+0x5e/0x80 [ 528.127180][ T253] fib6_nh_init+0x3d8/0x1580 [ 528.127180][ T253] ip6_route_info_create+0xf18/0x17d0 [ 528.127180][ T253] ip6_route_add+0x1c/0x140 [ 528.127180][ T253] addrconf_prefix_route+0x2a6/0x430 [ 528.127180][ T253] inet6_addr_add+0x4f8/0xa40 [ 528.127180][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 528.127180][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 528.127180][ T253] netlink_rcv_skb+0x130/0x360 [ 528.127180][ T253] netlink_unicast+0x449/0x710 [ 528.127180][ T253] netlink_sendmsg+0x723/0xbe0 [ 528.127180][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 528.127180][ T253] ___sys_sendmsg+0xee/0x170 [ 528.127180][ T253] __sys_sendmsg+0xcd/0x170 [ 528.127180][ T253] do_syscall_64+0xc6/0x1e0 [ 528.127180][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 528.127180][ T253] [ 528.129467][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 528.129467][ T253] netdev_get_by_index+0x5e/0x80 [ 528.129467][ T253] fib6_nh_init+0x3d8/0x1580 [ 528.129467][ T253] ip6_route_info_create+0xf18/0x17d0 [ 528.129467][ T253] addrconf_f6i_alloc+0x315/0x560 [ 528.129467][ T253] ipv6_add_addr+0x411/0x2000 [ 528.129467][ T253] inet6_addr_add+0x30e/0xa40 [ 528.129467][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 528.129467][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 528.129467][ T253] netlink_rcv_skb+0x130/0x360 [ 528.129467][ T253] netlink_unicast+0x449/0x710 [ 528.129467][ T253] netlink_sendmsg+0x723/0xbe0 [ 528.129467][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 528.129467][ T253] ___sys_sendmsg+0xee/0x170 [ 528.129467][ T253] __sys_sendmsg+0xcd/0x170 [ 528.129467][ T253] do_syscall_64+0xc6/0x1e0 [ 528.129467][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 528.129467][ T253] [ 528.131736][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 528.131736][ T253] netdev_get_by_index+0x5e/0x80 [ 528.131736][ T253] fib6_nh_init+0x3d8/0x1580 [ 528.131736][ T253] ip6_route_info_create+0xf18/0x17d0 [ 528.131736][ T253] ip6_route_add+0x1c/0x140 [ 528.131736][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 528.131736][ T253] addrconf_add_dev+0xe2/0x170 [ 528.131736][ T253] inet6_addr_add+0x12f/0xa40 [ 528.131736][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 528.131736][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 528.131736][ T253] netlink_rcv_skb+0x130/0x360 [ 528.131736][ T253] netlink_unicast+0x449/0x710 [ 528.131736][ T253] netlink_sendmsg+0x723/0xbe0 [ 528.131736][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 528.131736][ T253] ___sys_sendmsg+0xee/0x170 [ 528.131736][ T253] __sys_sendmsg+0xcd/0x170 [ 528.131736][ T253] do_syscall_64+0xc6/0x1e0 [ 528.131736][ T253] [ 528.133967][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 528.133967][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 528.133967][ T253] ipv6_find_idev+0x102/0x170 [ 528.133967][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 528.133967][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 528.133967][ T253] netlink_rcv_skb+0x130/0x360 [ 528.133967][ T253] netlink_unicast+0x449/0x710 [ 528.133967][ T253] netlink_sendmsg+0x723/0xbe0 [ 528.133967][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 528.133967][ T253] ___sys_sendmsg+0xee/0x170 [ 528.133967][ T253] __sys_sendmsg+0xcd/0x170 [ 528.133967][ T253] do_syscall_64+0xc6/0x1e0 [ 528.133967][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 528.133967][ T253] [ 528.135715][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 528.135715][ T253] neigh_parms_alloc+0x1e5/0x510 [ 528.135715][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 528.135715][ T253] ipv6_find_idev+0x102/0x170 [ 528.135715][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 528.135715][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 528.135715][ T253] netlink_rcv_skb+0x130/0x360 [ 528.135715][ T253] netlink_unicast+0x449/0x710 [ 528.135715][ T253] netlink_sendmsg+0x723/0xbe0 [ 528.135715][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 528.135715][ T253] ___sys_sendmsg+0xee/0x170 [ 528.135715][ T253] __sys_sendmsg+0xcd/0x170 [ 528.135715][ T253] do_syscall_64+0xc6/0x1e0 [ 528.135715][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 528.135715][ T253] [ 538.218294][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 538.218918][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 538.218918][ T253] dst_init+0x84/0x4a0 [ 538.218918][ T253] dst_alloc+0x97/0x150 [ 538.218918][ T253] ip6_dst_alloc+0x23/0x90 [ 538.218918][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 538.218918][ T253] ip6_pol_route+0x56f/0x840 [ 538.218918][ T253] fib6_rule_lookup+0x334/0x630 [ 538.218918][ T253] ip6_route_output_flags+0x259/0x480 [ 538.218918][ T253] inet6_rtm_getroute+0x980/0xf70 [ 538.218918][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 538.218918][ T253] netlink_rcv_skb+0x130/0x360 [ 538.218918][ T253] netlink_unicast+0x449/0x710 [ 538.218918][ T253] netlink_sendmsg+0x723/0xbe0 [ 538.218918][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 538.218918][ T253] ___sys_sendmsg+0xee/0x170 [ 538.218918][ T253] __sys_sendmsg+0xcd/0x170 [ 538.218918][ T253] do_syscall_64+0xc6/0x1e0 [ 538.218918][ T253] [ 538.222488][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 538.222488][ T253] netdev_get_by_index+0x5e/0x80 [ 538.222488][ T253] fib6_nh_init+0x3d8/0x1580 [ 538.222488][ T253] ip6_route_info_create+0xf18/0x17d0 [ 538.222488][ T253] addrconf_f6i_alloc+0x265/0x560 [ 538.222488][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 538.222488][ T253] addrconf_join_anycast+0x1c0/0x220 [ 538.222488][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 538.222488][ T253] addrconf_dad_completed+0x12b/0xe20 [ 538.222488][ T253] addrconf_dad_begin+0x310/0x670 [ 538.222488][ T253] addrconf_dad_work+0x10b/0xab0 [ 538.222488][ T253] process_one_work+0x84d/0x18a0 [ 538.222488][ T253] worker_thread+0x587/0xd30 [ 538.222488][ T253] kthread+0x28a/0x350 [ 538.222488][ T253] ret_from_fork+0x31/0x70 [ 538.222488][ T253] ret_from_fork_asm+0x1a/0x30 [ 538.222488][ T253] [ 538.225906][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 538.225906][ T253] netdev_get_by_index+0x5e/0x80 [ 538.225906][ T253] fib6_nh_init+0x3d8/0x1580 [ 538.225906][ T253] ip6_route_info_create+0xf18/0x17d0 [ 538.225906][ T253] ip6_route_add+0x1c/0x140 [ 538.225906][ T253] addrconf_prefix_route+0x2a6/0x430 [ 538.225906][ T253] inet6_addr_add+0x4f8/0xa40 [ 538.225906][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 538.225906][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 538.225906][ T253] netlink_rcv_skb+0x130/0x360 [ 538.225906][ T253] netlink_unicast+0x449/0x710 [ 538.225906][ T253] netlink_sendmsg+0x723/0xbe0 [ 538.225906][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 538.225906][ T253] ___sys_sendmsg+0xee/0x170 [ 538.225906][ T253] __sys_sendmsg+0xcd/0x170 [ 538.225906][ T253] do_syscall_64+0xc6/0x1e0 [ 538.225906][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 538.225906][ T253] [ 538.229508][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 538.229508][ T253] netdev_get_by_index+0x5e/0x80 [ 538.229508][ T253] fib6_nh_init+0x3d8/0x1580 [ 538.229508][ T253] ip6_route_info_create+0xf18/0x17d0 [ 538.229508][ T253] addrconf_f6i_alloc+0x315/0x560 [ 538.229508][ T253] ipv6_add_addr+0x411/0x2000 [ 538.229508][ T253] inet6_addr_add+0x30e/0xa40 [ 538.229508][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 538.229508][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 538.229508][ T253] netlink_rcv_skb+0x130/0x360 [ 538.229508][ T253] netlink_unicast+0x449/0x710 [ 538.229508][ T253] netlink_sendmsg+0x723/0xbe0 [ 538.229508][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 538.229508][ T253] ___sys_sendmsg+0xee/0x170 [ 538.229508][ T253] __sys_sendmsg+0xcd/0x170 [ 538.229508][ T253] do_syscall_64+0xc6/0x1e0 [ 538.229508][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 538.229508][ T253] [ 538.233089][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 538.233089][ T253] netdev_get_by_index+0x5e/0x80 [ 538.233089][ T253] fib6_nh_init+0x3d8/0x1580 [ 538.233089][ T253] ip6_route_info_create+0xf18/0x17d0 [ 538.233089][ T253] ip6_route_add+0x1c/0x140 [ 538.233089][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 538.233089][ T253] addrconf_add_dev+0xe2/0x170 [ 538.233089][ T253] inet6_addr_add+0x12f/0xa40 [ 538.233089][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 538.233089][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 538.233089][ T253] netlink_rcv_skb+0x130/0x360 [ 538.233089][ T253] netlink_unicast+0x449/0x710 [ 538.233089][ T253] netlink_sendmsg+0x723/0xbe0 [ 538.233089][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 538.233089][ T253] ___sys_sendmsg+0xee/0x170 [ 538.233089][ T253] __sys_sendmsg+0xcd/0x170 [ 538.233089][ T253] do_syscall_64+0xc6/0x1e0 [ 538.233089][ T253] [ 538.236597][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 538.236597][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 538.236597][ T253] ipv6_find_idev+0x102/0x170 [ 538.236597][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 538.236597][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 538.236597][ T253] netlink_rcv_skb+0x130/0x360 [ 538.236597][ T253] netlink_unicast+0x449/0x710 [ 538.236597][ T253] netlink_sendmsg+0x723/0xbe0 [ 538.236597][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 538.236597][ T253] ___sys_sendmsg+0xee/0x170 [ 538.236597][ T253] __sys_sendmsg+0xcd/0x170 [ 538.236597][ T253] do_syscall_64+0xc6/0x1e0 [ 538.236597][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 538.236597][ T253] [ 538.239398][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 538.239398][ T253] neigh_parms_alloc+0x1e5/0x510 [ 538.239398][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 538.239398][ T253] ipv6_find_idev+0x102/0x170 [ 538.239398][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 538.239398][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 538.239398][ T253] netlink_rcv_skb+0x130/0x360 [ 538.239398][ T253] netlink_unicast+0x449/0x710 [ 538.239398][ T253] netlink_sendmsg+0x723/0xbe0 [ 538.239398][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 538.239398][ T253] ___sys_sendmsg+0xee/0x170 [ 538.239398][ T253] __sys_sendmsg+0xcd/0x170 [ 538.239398][ T253] do_syscall_64+0xc6/0x1e0 [ 538.239398][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 538.239398][ T253] [ 548.482298][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 548.482730][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 548.482730][ T253] dst_init+0x84/0x4a0 [ 548.482730][ T253] dst_alloc+0x97/0x150 [ 548.482730][ T253] ip6_dst_alloc+0x23/0x90 [ 548.482730][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 548.482730][ T253] ip6_pol_route+0x56f/0x840 [ 548.482730][ T253] fib6_rule_lookup+0x334/0x630 [ 548.482730][ T253] ip6_route_output_flags+0x259/0x480 [ 548.482730][ T253] inet6_rtm_getroute+0x980/0xf70 [ 548.482730][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 548.482730][ T253] netlink_rcv_skb+0x130/0x360 [ 548.482730][ T253] netlink_unicast+0x449/0x710 [ 548.482730][ T253] netlink_sendmsg+0x723/0xbe0 [ 548.482730][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 548.482730][ T253] ___sys_sendmsg+0xee/0x170 [ 548.482730][ T253] __sys_sendmsg+0xcd/0x170 [ 548.482730][ T253] do_syscall_64+0xc6/0x1e0 [ 548.482730][ T253] [ 548.485017][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 548.485017][ T253] netdev_get_by_index+0x5e/0x80 [ 548.485017][ T253] fib6_nh_init+0x3d8/0x1580 [ 548.485017][ T253] ip6_route_info_create+0xf18/0x17d0 [ 548.485017][ T253] addrconf_f6i_alloc+0x265/0x560 [ 548.485017][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 548.485017][ T253] addrconf_join_anycast+0x1c0/0x220 [ 548.485017][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 548.485017][ T253] addrconf_dad_completed+0x12b/0xe20 [ 548.485017][ T253] addrconf_dad_begin+0x310/0x670 [ 548.485017][ T253] addrconf_dad_work+0x10b/0xab0 [ 548.485017][ T253] process_one_work+0x84d/0x18a0 [ 548.485017][ T253] worker_thread+0x587/0xd30 [ 548.485017][ T253] kthread+0x28a/0x350 [ 548.485017][ T253] ret_from_fork+0x31/0x70 [ 548.485017][ T253] ret_from_fork_asm+0x1a/0x30 [ 548.485017][ T253] [ 548.487255][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 548.487255][ T253] netdev_get_by_index+0x5e/0x80 [ 548.487255][ T253] fib6_nh_init+0x3d8/0x1580 [ 548.487255][ T253] ip6_route_info_create+0xf18/0x17d0 [ 548.487255][ T253] ip6_route_add+0x1c/0x140 [ 548.487255][ T253] addrconf_prefix_route+0x2a6/0x430 [ 548.487255][ T253] inet6_addr_add+0x4f8/0xa40 [ 548.487255][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 548.487255][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 548.487255][ T253] netlink_rcv_skb+0x130/0x360 [ 548.487255][ T253] netlink_unicast+0x449/0x710 [ 548.487255][ T253] netlink_sendmsg+0x723/0xbe0 [ 548.487255][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 548.487255][ T253] ___sys_sendmsg+0xee/0x170 [ 548.487255][ T253] __sys_sendmsg+0xcd/0x170 [ 548.487255][ T253] do_syscall_64+0xc6/0x1e0 [ 548.487255][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 548.487255][ T253] [ 548.489521][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 548.489521][ T253] netdev_get_by_index+0x5e/0x80 [ 548.489521][ T253] fib6_nh_init+0x3d8/0x1580 [ 548.489521][ T253] ip6_route_info_create+0xf18/0x17d0 [ 548.489521][ T253] addrconf_f6i_alloc+0x315/0x560 [ 548.489521][ T253] ipv6_add_addr+0x411/0x2000 [ 548.489521][ T253] inet6_addr_add+0x30e/0xa40 [ 548.489521][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 548.489521][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 548.489521][ T253] netlink_rcv_skb+0x130/0x360 [ 548.489521][ T253] netlink_unicast+0x449/0x710 [ 548.489521][ T253] netlink_sendmsg+0x723/0xbe0 [ 548.489521][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 548.489521][ T253] ___sys_sendmsg+0xee/0x170 [ 548.489521][ T253] __sys_sendmsg+0xcd/0x170 [ 548.489521][ T253] do_syscall_64+0xc6/0x1e0 [ 548.489521][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 548.489521][ T253] [ 548.491809][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 548.491809][ T253] netdev_get_by_index+0x5e/0x80 [ 548.491809][ T253] fib6_nh_init+0x3d8/0x1580 [ 548.491809][ T253] ip6_route_info_create+0xf18/0x17d0 [ 548.491809][ T253] ip6_route_add+0x1c/0x140 [ 548.491809][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 548.491809][ T253] addrconf_add_dev+0xe2/0x170 [ 548.491809][ T253] inet6_addr_add+0x12f/0xa40 [ 548.491809][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 548.491809][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 548.491809][ T253] netlink_rcv_skb+0x130/0x360 [ 548.491809][ T253] netlink_unicast+0x449/0x710 [ 548.491809][ T253] netlink_sendmsg+0x723/0xbe0 [ 548.491809][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 548.491809][ T253] ___sys_sendmsg+0xee/0x170 [ 548.491809][ T253] __sys_sendmsg+0xcd/0x170 [ 548.491809][ T253] do_syscall_64+0xc6/0x1e0 [ 548.491809][ T253] [ 548.494038][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 548.494038][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 548.494038][ T253] ipv6_find_idev+0x102/0x170 [ 548.494038][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 548.494038][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 548.494038][ T253] netlink_rcv_skb+0x130/0x360 [ 548.494038][ T253] netlink_unicast+0x449/0x710 [ 548.494038][ T253] netlink_sendmsg+0x723/0xbe0 [ 548.494038][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 548.494038][ T253] ___sys_sendmsg+0xee/0x170 [ 548.494038][ T253] __sys_sendmsg+0xcd/0x170 [ 548.494038][ T253] do_syscall_64+0xc6/0x1e0 [ 548.494038][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 548.494038][ T253] [ 548.495798][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 548.495798][ T253] neigh_parms_alloc+0x1e5/0x510 [ 548.495798][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 548.495798][ T253] ipv6_find_idev+0x102/0x170 [ 548.495798][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 548.495798][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 548.495798][ T253] netlink_rcv_skb+0x130/0x360 [ 548.495798][ T253] netlink_unicast+0x449/0x710 [ 548.495798][ T253] netlink_sendmsg+0x723/0xbe0 [ 548.495798][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 548.495798][ T253] ___sys_sendmsg+0xee/0x170 [ 548.495798][ T253] __sys_sendmsg+0xcd/0x170 [ 548.495798][ T253] do_syscall_64+0xc6/0x1e0 [ 548.495798][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 548.495798][ T253] [ 558.642348][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 558.642904][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 558.642904][ T253] dst_init+0x84/0x4a0 [ 558.642904][ T253] dst_alloc+0x97/0x150 [ 558.642904][ T253] ip6_dst_alloc+0x23/0x90 [ 558.642904][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 558.642904][ T253] ip6_pol_route+0x56f/0x840 [ 558.642904][ T253] fib6_rule_lookup+0x334/0x630 [ 558.642904][ T253] ip6_route_output_flags+0x259/0x480 [ 558.642904][ T253] inet6_rtm_getroute+0x980/0xf70 [ 558.642904][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 558.642904][ T253] netlink_rcv_skb+0x130/0x360 [ 558.642904][ T253] netlink_unicast+0x449/0x710 [ 558.642904][ T253] netlink_sendmsg+0x723/0xbe0 [ 558.642904][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 558.642904][ T253] ___sys_sendmsg+0xee/0x170 [ 558.642904][ T253] __sys_sendmsg+0xcd/0x170 [ 558.642904][ T253] do_syscall_64+0xc6/0x1e0 [ 558.642904][ T253] [ 558.645608][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 558.645608][ T253] netdev_get_by_index+0x5e/0x80 [ 558.645608][ T253] fib6_nh_init+0x3d8/0x1580 [ 558.645608][ T253] ip6_route_info_create+0xf18/0x17d0 [ 558.645608][ T253] addrconf_f6i_alloc+0x265/0x560 [ 558.645608][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 558.645608][ T253] addrconf_join_anycast+0x1c0/0x220 [ 558.645608][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 558.645608][ T253] addrconf_dad_completed+0x12b/0xe20 [ 558.645608][ T253] addrconf_dad_begin+0x310/0x670 [ 558.645608][ T253] addrconf_dad_work+0x10b/0xab0 [ 558.645608][ T253] process_one_work+0x84d/0x18a0 [ 558.645608][ T253] worker_thread+0x587/0xd30 [ 558.645608][ T253] kthread+0x28a/0x350 [ 558.645608][ T253] ret_from_fork+0x31/0x70 [ 558.645608][ T253] ret_from_fork_asm+0x1a/0x30 [ 558.645608][ T253] [ 558.648408][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 558.648408][ T253] netdev_get_by_index+0x5e/0x80 [ 558.648408][ T253] fib6_nh_init+0x3d8/0x1580 [ 558.648408][ T253] ip6_route_info_create+0xf18/0x17d0 [ 558.648408][ T253] ip6_route_add+0x1c/0x140 [ 558.648408][ T253] addrconf_prefix_route+0x2a6/0x430 [ 558.648408][ T253] inet6_addr_add+0x4f8/0xa40 [ 558.648408][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 558.648408][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 558.648408][ T253] netlink_rcv_skb+0x130/0x360 [ 558.648408][ T253] netlink_unicast+0x449/0x710 [ 558.648408][ T253] netlink_sendmsg+0x723/0xbe0 [ 558.648408][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 558.648408][ T253] ___sys_sendmsg+0xee/0x170 [ 558.648408][ T253] __sys_sendmsg+0xcd/0x170 [ 558.648408][ T253] do_syscall_64+0xc6/0x1e0 [ 558.648408][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 558.648408][ T253] [ 558.651319][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 558.651319][ T253] netdev_get_by_index+0x5e/0x80 [ 558.651319][ T253] fib6_nh_init+0x3d8/0x1580 [ 558.651319][ T253] ip6_route_info_create+0xf18/0x17d0 [ 558.651319][ T253] addrconf_f6i_alloc+0x315/0x560 [ 558.651319][ T253] ipv6_add_addr+0x411/0x2000 [ 558.651319][ T253] inet6_addr_add+0x30e/0xa40 [ 558.651319][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 558.651319][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 558.651319][ T253] netlink_rcv_skb+0x130/0x360 [ 558.651319][ T253] netlink_unicast+0x449/0x710 [ 558.651319][ T253] netlink_sendmsg+0x723/0xbe0 [ 558.651319][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 558.651319][ T253] ___sys_sendmsg+0xee/0x170 [ 558.651319][ T253] __sys_sendmsg+0xcd/0x170 [ 558.651319][ T253] do_syscall_64+0xc6/0x1e0 [ 558.651319][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 558.651319][ T253] [ 558.654168][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 558.654168][ T253] netdev_get_by_index+0x5e/0x80 [ 558.654168][ T253] fib6_nh_init+0x3d8/0x1580 [ 558.654168][ T253] ip6_route_info_create+0xf18/0x17d0 [ 558.654168][ T253] ip6_route_add+0x1c/0x140 [ 558.654168][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 558.654168][ T253] addrconf_add_dev+0xe2/0x170 [ 558.654168][ T253] inet6_addr_add+0x12f/0xa40 [ 558.654168][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 558.654168][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 558.654168][ T253] netlink_rcv_skb+0x130/0x360 [ 558.654168][ T253] netlink_unicast+0x449/0x710 [ 558.654168][ T253] netlink_sendmsg+0x723/0xbe0 [ 558.654168][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 558.654168][ T253] ___sys_sendmsg+0xee/0x170 [ 558.654168][ T253] __sys_sendmsg+0xcd/0x170 [ 558.654168][ T253] do_syscall_64+0xc6/0x1e0 [ 558.654168][ T253] [ 558.656775][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 558.656775][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 558.656775][ T253] ipv6_find_idev+0x102/0x170 [ 558.656775][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 558.656775][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 558.656775][ T253] netlink_rcv_skb+0x130/0x360 [ 558.656775][ T253] netlink_unicast+0x449/0x710 [ 558.656775][ T253] netlink_sendmsg+0x723/0xbe0 [ 558.656775][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 558.656775][ T253] ___sys_sendmsg+0xee/0x170 [ 558.656775][ T253] __sys_sendmsg+0xcd/0x170 [ 558.656775][ T253] do_syscall_64+0xc6/0x1e0 [ 558.656775][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 558.656775][ T253] [ 558.658849][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 558.658849][ T253] neigh_parms_alloc+0x1e5/0x510 [ 558.658849][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 558.658849][ T253] ipv6_find_idev+0x102/0x170 [ 558.658849][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 558.658849][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 558.658849][ T253] netlink_rcv_skb+0x130/0x360 [ 558.658849][ T253] netlink_unicast+0x449/0x710 [ 558.658849][ T253] netlink_sendmsg+0x723/0xbe0 [ 558.658849][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 558.658849][ T253] ___sys_sendmsg+0xee/0x170 [ 558.658849][ T253] __sys_sendmsg+0xcd/0x170 [ 558.658849][ T253] do_syscall_64+0xc6/0x1e0 [ 558.658849][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 558.658849][ T253] [ 568.898293][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 568.898818][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 568.898818][ T253] dst_init+0x84/0x4a0 [ 568.898818][ T253] dst_alloc+0x97/0x150 [ 568.898818][ T253] ip6_dst_alloc+0x23/0x90 [ 568.898818][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 568.898818][ T253] ip6_pol_route+0x56f/0x840 [ 568.898818][ T253] fib6_rule_lookup+0x334/0x630 [ 568.898818][ T253] ip6_route_output_flags+0x259/0x480 [ 568.898818][ T253] inet6_rtm_getroute+0x980/0xf70 [ 568.898818][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 568.898818][ T253] netlink_rcv_skb+0x130/0x360 [ 568.898818][ T253] netlink_unicast+0x449/0x710 [ 568.898818][ T253] netlink_sendmsg+0x723/0xbe0 [ 568.898818][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 568.898818][ T253] ___sys_sendmsg+0xee/0x170 [ 568.898818][ T253] __sys_sendmsg+0xcd/0x170 [ 568.898818][ T253] do_syscall_64+0xc6/0x1e0 [ 568.898818][ T253] [ 568.901058][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 568.901058][ T253] netdev_get_by_index+0x5e/0x80 [ 568.901058][ T253] fib6_nh_init+0x3d8/0x1580 [ 568.901058][ T253] ip6_route_info_create+0xf18/0x17d0 [ 568.901058][ T253] addrconf_f6i_alloc+0x265/0x560 [ 568.901058][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 568.901058][ T253] addrconf_join_anycast+0x1c0/0x220 [ 568.901058][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 568.901058][ T253] addrconf_dad_completed+0x12b/0xe20 [ 568.901058][ T253] addrconf_dad_begin+0x310/0x670 [ 568.901058][ T253] addrconf_dad_work+0x10b/0xab0 [ 568.901058][ T253] process_one_work+0x84d/0x18a0 [ 568.901058][ T253] worker_thread+0x587/0xd30 [ 568.901058][ T253] kthread+0x28a/0x350 [ 568.901058][ T253] ret_from_fork+0x31/0x70 [ 568.901058][ T253] ret_from_fork_asm+0x1a/0x30 [ 568.901058][ T253] [ 568.903595][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 568.903595][ T253] netdev_get_by_index+0x5e/0x80 [ 568.903595][ T253] fib6_nh_init+0x3d8/0x1580 [ 568.903595][ T253] ip6_route_info_create+0xf18/0x17d0 [ 568.903595][ T253] ip6_route_add+0x1c/0x140 [ 568.903595][ T253] addrconf_prefix_route+0x2a6/0x430 [ 568.903595][ T253] inet6_addr_add+0x4f8/0xa40 [ 568.903595][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 568.903595][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 568.903595][ T253] netlink_rcv_skb+0x130/0x360 [ 568.903595][ T253] netlink_unicast+0x449/0x710 [ 568.903595][ T253] netlink_sendmsg+0x723/0xbe0 [ 568.903595][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 568.903595][ T253] ___sys_sendmsg+0xee/0x170 [ 568.903595][ T253] __sys_sendmsg+0xcd/0x170 [ 568.903595][ T253] do_syscall_64+0xc6/0x1e0 [ 568.903595][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 568.903595][ T253] [ 568.905918][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 568.905918][ T253] netdev_get_by_index+0x5e/0x80 [ 568.905918][ T253] fib6_nh_init+0x3d8/0x1580 [ 568.905918][ T253] ip6_route_info_create+0xf18/0x17d0 [ 568.905918][ T253] addrconf_f6i_alloc+0x315/0x560 [ 568.905918][ T253] ipv6_add_addr+0x411/0x2000 [ 568.905918][ T253] inet6_addr_add+0x30e/0xa40 [ 568.905918][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 568.905918][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 568.905918][ T253] netlink_rcv_skb+0x130/0x360 [ 568.905918][ T253] netlink_unicast+0x449/0x710 [ 568.905918][ T253] netlink_sendmsg+0x723/0xbe0 [ 568.905918][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 568.905918][ T253] ___sys_sendmsg+0xee/0x170 [ 568.905918][ T253] __sys_sendmsg+0xcd/0x170 [ 568.905918][ T253] do_syscall_64+0xc6/0x1e0 [ 568.905918][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 568.905918][ T253] [ 568.908189][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 568.908189][ T253] netdev_get_by_index+0x5e/0x80 [ 568.908189][ T253] fib6_nh_init+0x3d8/0x1580 [ 568.908189][ T253] ip6_route_info_create+0xf18/0x17d0 [ 568.908189][ T253] ip6_route_add+0x1c/0x140 [ 568.908189][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 568.908189][ T253] addrconf_add_dev+0xe2/0x170 [ 568.908189][ T253] inet6_addr_add+0x12f/0xa40 [ 568.908189][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 568.908189][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 568.908189][ T253] netlink_rcv_skb+0x130/0x360 [ 568.908189][ T253] netlink_unicast+0x449/0x710 [ 568.908189][ T253] netlink_sendmsg+0x723/0xbe0 [ 568.908189][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 568.908189][ T253] ___sys_sendmsg+0xee/0x170 [ 568.908189][ T253] __sys_sendmsg+0xcd/0x170 [ 568.908189][ T253] do_syscall_64+0xc6/0x1e0 [ 568.908189][ T253] [ 568.910500][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 568.910500][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 568.910500][ T253] ipv6_find_idev+0x102/0x170 [ 568.910500][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 568.910500][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 568.910500][ T253] netlink_rcv_skb+0x130/0x360 [ 568.910500][ T253] netlink_unicast+0x449/0x710 [ 568.910500][ T253] netlink_sendmsg+0x723/0xbe0 [ 568.910500][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 568.910500][ T253] ___sys_sendmsg+0xee/0x170 [ 568.910500][ T253] __sys_sendmsg+0xcd/0x170 [ 568.910500][ T253] do_syscall_64+0xc6/0x1e0 [ 568.910500][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 568.910500][ T253] [ 568.912252][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 568.912252][ T253] neigh_parms_alloc+0x1e5/0x510 [ 568.912252][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 568.912252][ T253] ipv6_find_idev+0x102/0x170 [ 568.912252][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 568.912252][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 568.912252][ T253] netlink_rcv_skb+0x130/0x360 [ 568.912252][ T253] netlink_unicast+0x449/0x710 [ 568.912252][ T253] netlink_sendmsg+0x723/0xbe0 [ 568.912252][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 568.912252][ T253] ___sys_sendmsg+0xee/0x170 [ 568.912252][ T253] __sys_sendmsg+0xcd/0x170 [ 568.912252][ T253] do_syscall_64+0xc6/0x1e0 [ 568.912252][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 568.912252][ T253] [ 579.034301][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 579.034830][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 579.034830][ T253] dst_init+0x84/0x4a0 [ 579.034830][ T253] dst_alloc+0x97/0x150 [ 579.034830][ T253] ip6_dst_alloc+0x23/0x90 [ 579.034830][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 579.034830][ T253] ip6_pol_route+0x56f/0x840 [ 579.034830][ T253] fib6_rule_lookup+0x334/0x630 [ 579.034830][ T253] ip6_route_output_flags+0x259/0x480 [ 579.034830][ T253] inet6_rtm_getroute+0x980/0xf70 [ 579.034830][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 579.034830][ T253] netlink_rcv_skb+0x130/0x360 [ 579.034830][ T253] netlink_unicast+0x449/0x710 [ 579.034830][ T253] netlink_sendmsg+0x723/0xbe0 [ 579.034830][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 579.034830][ T253] ___sys_sendmsg+0xee/0x170 [ 579.034830][ T253] __sys_sendmsg+0xcd/0x170 [ 579.034830][ T253] do_syscall_64+0xc6/0x1e0 [ 579.034830][ T253] [ 579.037060][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 579.037060][ T253] netdev_get_by_index+0x5e/0x80 [ 579.037060][ T253] fib6_nh_init+0x3d8/0x1580 [ 579.037060][ T253] ip6_route_info_create+0xf18/0x17d0 [ 579.037060][ T253] addrconf_f6i_alloc+0x265/0x560 [ 579.037060][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 579.037060][ T253] addrconf_join_anycast+0x1c0/0x220 [ 579.037060][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 579.037060][ T253] addrconf_dad_completed+0x12b/0xe20 [ 579.037060][ T253] addrconf_dad_begin+0x310/0x670 [ 579.037060][ T253] addrconf_dad_work+0x10b/0xab0 [ 579.037060][ T253] process_one_work+0x84d/0x18a0 [ 579.037060][ T253] worker_thread+0x587/0xd30 [ 579.037060][ T253] kthread+0x28a/0x350 [ 579.037060][ T253] ret_from_fork+0x31/0x70 [ 579.037060][ T253] ret_from_fork_asm+0x1a/0x30 [ 579.037060][ T253] [ 579.039225][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 579.039225][ T253] netdev_get_by_index+0x5e/0x80 [ 579.039225][ T253] fib6_nh_init+0x3d8/0x1580 [ 579.039225][ T253] ip6_route_info_create+0xf18/0x17d0 [ 579.039225][ T253] ip6_route_add+0x1c/0x140 [ 579.039225][ T253] addrconf_prefix_route+0x2a6/0x430 [ 579.039225][ T253] inet6_addr_add+0x4f8/0xa40 [ 579.039225][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 579.039225][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 579.039225][ T253] netlink_rcv_skb+0x130/0x360 [ 579.039225][ T253] netlink_unicast+0x449/0x710 [ 579.039225][ T253] netlink_sendmsg+0x723/0xbe0 [ 579.039225][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 579.039225][ T253] ___sys_sendmsg+0xee/0x170 [ 579.039225][ T253] __sys_sendmsg+0xcd/0x170 [ 579.039225][ T253] do_syscall_64+0xc6/0x1e0 [ 579.039225][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 579.039225][ T253] [ 579.041493][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 579.041493][ T253] netdev_get_by_index+0x5e/0x80 [ 579.041493][ T253] fib6_nh_init+0x3d8/0x1580 [ 579.041493][ T253] ip6_route_info_create+0xf18/0x17d0 [ 579.041493][ T253] addrconf_f6i_alloc+0x315/0x560 [ 579.041493][ T253] ipv6_add_addr+0x411/0x2000 [ 579.041493][ T253] inet6_addr_add+0x30e/0xa40 [ 579.041493][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 579.041493][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 579.041493][ T253] netlink_rcv_skb+0x130/0x360 [ 579.041493][ T253] netlink_unicast+0x449/0x710 [ 579.041493][ T253] netlink_sendmsg+0x723/0xbe0 [ 579.041493][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 579.041493][ T253] ___sys_sendmsg+0xee/0x170 [ 579.041493][ T253] __sys_sendmsg+0xcd/0x170 [ 579.041493][ T253] do_syscall_64+0xc6/0x1e0 [ 579.041493][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 579.041493][ T253] [ 579.043742][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 579.043742][ T253] netdev_get_by_index+0x5e/0x80 [ 579.043742][ T253] fib6_nh_init+0x3d8/0x1580 [ 579.043742][ T253] ip6_route_info_create+0xf18/0x17d0 [ 579.043742][ T253] ip6_route_add+0x1c/0x140 [ 579.043742][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 579.043742][ T253] addrconf_add_dev+0xe2/0x170 [ 579.043742][ T253] inet6_addr_add+0x12f/0xa40 [ 579.043742][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 579.043742][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 579.043742][ T253] netlink_rcv_skb+0x130/0x360 [ 579.043742][ T253] netlink_unicast+0x449/0x710 [ 579.043742][ T253] netlink_sendmsg+0x723/0xbe0 [ 579.043742][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 579.043742][ T253] ___sys_sendmsg+0xee/0x170 [ 579.043742][ T253] __sys_sendmsg+0xcd/0x170 [ 579.043742][ T253] do_syscall_64+0xc6/0x1e0 [ 579.043742][ T253] [ 579.045965][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 579.045965][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 579.045965][ T253] ipv6_find_idev+0x102/0x170 [ 579.045965][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 579.045965][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 579.045965][ T253] netlink_rcv_skb+0x130/0x360 [ 579.045965][ T253] netlink_unicast+0x449/0x710 [ 579.045965][ T253] netlink_sendmsg+0x723/0xbe0 [ 579.045965][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 579.045965][ T253] ___sys_sendmsg+0xee/0x170 [ 579.045965][ T253] __sys_sendmsg+0xcd/0x170 [ 579.045965][ T253] do_syscall_64+0xc6/0x1e0 [ 579.045965][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 579.045965][ T253] [ 579.047721][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 579.047721][ T253] neigh_parms_alloc+0x1e5/0x510 [ 579.047721][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 579.047721][ T253] ipv6_find_idev+0x102/0x170 [ 579.047721][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 579.047721][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 579.047721][ T253] netlink_rcv_skb+0x130/0x360 [ 579.047721][ T253] netlink_unicast+0x449/0x710 [ 579.047721][ T253] netlink_sendmsg+0x723/0xbe0 [ 579.047721][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 579.047721][ T253] ___sys_sendmsg+0xee/0x170 [ 579.047721][ T253] __sys_sendmsg+0xcd/0x170 [ 579.047721][ T253] do_syscall_64+0xc6/0x1e0 [ 579.047721][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 579.047721][ T253] [ 589.122304][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 589.122893][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 589.122893][ T253] dst_init+0x84/0x4a0 [ 589.122893][ T253] dst_alloc+0x97/0x150 [ 589.122893][ T253] ip6_dst_alloc+0x23/0x90 [ 589.122893][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 589.122893][ T253] ip6_pol_route+0x56f/0x840 [ 589.122893][ T253] fib6_rule_lookup+0x334/0x630 [ 589.122893][ T253] ip6_route_output_flags+0x259/0x480 [ 589.122893][ T253] inet6_rtm_getroute+0x980/0xf70 [ 589.122893][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 589.122893][ T253] netlink_rcv_skb+0x130/0x360 [ 589.122893][ T253] netlink_unicast+0x449/0x710 [ 589.122893][ T253] netlink_sendmsg+0x723/0xbe0 [ 589.122893][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 589.122893][ T253] ___sys_sendmsg+0xee/0x170 [ 589.122893][ T253] __sys_sendmsg+0xcd/0x170 [ 589.122893][ T253] do_syscall_64+0xc6/0x1e0 [ 589.122893][ T253] [ 589.125107][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 589.125107][ T253] netdev_get_by_index+0x5e/0x80 [ 589.125107][ T253] fib6_nh_init+0x3d8/0x1580 [ 589.125107][ T253] ip6_route_info_create+0xf18/0x17d0 [ 589.125107][ T253] addrconf_f6i_alloc+0x265/0x560 [ 589.125107][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 589.125107][ T253] addrconf_join_anycast+0x1c0/0x220 [ 589.125107][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 589.125107][ T253] addrconf_dad_completed+0x12b/0xe20 [ 589.125107][ T253] addrconf_dad_begin+0x310/0x670 [ 589.125107][ T253] addrconf_dad_work+0x10b/0xab0 [ 589.125107][ T253] process_one_work+0x84d/0x18a0 [ 589.125107][ T253] worker_thread+0x587/0xd30 [ 589.125107][ T253] kthread+0x28a/0x350 [ 589.125107][ T253] ret_from_fork+0x31/0x70 [ 589.125107][ T253] ret_from_fork_asm+0x1a/0x30 [ 589.125107][ T253] [ 589.127276][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 589.127276][ T253] netdev_get_by_index+0x5e/0x80 [ 589.127276][ T253] fib6_nh_init+0x3d8/0x1580 [ 589.127276][ T253] ip6_route_info_create+0xf18/0x17d0 [ 589.127276][ T253] ip6_route_add+0x1c/0x140 [ 589.127276][ T253] addrconf_prefix_route+0x2a6/0x430 [ 589.127276][ T253] inet6_addr_add+0x4f8/0xa40 [ 589.127276][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 589.127276][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 589.127276][ T253] netlink_rcv_skb+0x130/0x360 [ 589.127276][ T253] netlink_unicast+0x449/0x710 [ 589.127276][ T253] netlink_sendmsg+0x723/0xbe0 [ 589.127276][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 589.127276][ T253] ___sys_sendmsg+0xee/0x170 [ 589.127276][ T253] __sys_sendmsg+0xcd/0x170 [ 589.127276][ T253] do_syscall_64+0xc6/0x1e0 [ 589.127276][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 589.127276][ T253] [ 589.129531][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 589.129531][ T253] netdev_get_by_index+0x5e/0x80 [ 589.129531][ T253] fib6_nh_init+0x3d8/0x1580 [ 589.129531][ T253] ip6_route_info_create+0xf18/0x17d0 [ 589.129531][ T253] addrconf_f6i_alloc+0x315/0x560 [ 589.129531][ T253] ipv6_add_addr+0x411/0x2000 [ 589.129531][ T253] inet6_addr_add+0x30e/0xa40 [ 589.129531][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 589.129531][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 589.129531][ T253] netlink_rcv_skb+0x130/0x360 [ 589.129531][ T253] netlink_unicast+0x449/0x710 [ 589.129531][ T253] netlink_sendmsg+0x723/0xbe0 [ 589.129531][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 589.129531][ T253] ___sys_sendmsg+0xee/0x170 [ 589.129531][ T253] __sys_sendmsg+0xcd/0x170 [ 589.129531][ T253] do_syscall_64+0xc6/0x1e0 [ 589.129531][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 589.129531][ T253] [ 589.132890][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 589.132890][ T253] netdev_get_by_index+0x5e/0x80 [ 589.132890][ T253] fib6_nh_init+0x3d8/0x1580 [ 589.132890][ T253] ip6_route_info_create+0xf18/0x17d0 [ 589.132890][ T253] ip6_route_add+0x1c/0x140 [ 589.132890][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 589.132890][ T253] addrconf_add_dev+0xe2/0x170 [ 589.132890][ T253] inet6_addr_add+0x12f/0xa40 [ 589.132890][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 589.132890][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 589.132890][ T253] netlink_rcv_skb+0x130/0x360 [ 589.132890][ T253] netlink_unicast+0x449/0x710 [ 589.132890][ T253] netlink_sendmsg+0x723/0xbe0 [ 589.132890][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 589.132890][ T253] ___sys_sendmsg+0xee/0x170 [ 589.132890][ T253] __sys_sendmsg+0xcd/0x170 [ 589.132890][ T253] do_syscall_64+0xc6/0x1e0 [ 589.132890][ T253] [ 589.135803][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 589.135803][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 589.135803][ T253] ipv6_find_idev+0x102/0x170 [ 589.135803][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 589.135803][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 589.135803][ T253] netlink_rcv_skb+0x130/0x360 [ 589.135803][ T253] netlink_unicast+0x449/0x710 [ 589.135803][ T253] netlink_sendmsg+0x723/0xbe0 [ 589.135803][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 589.135803][ T253] ___sys_sendmsg+0xee/0x170 [ 589.135803][ T253] __sys_sendmsg+0xcd/0x170 [ 589.135803][ T253] do_syscall_64+0xc6/0x1e0 [ 589.135803][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 589.135803][ T253] [ 589.137560][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 589.137560][ T253] neigh_parms_alloc+0x1e5/0x510 [ 589.137560][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 589.137560][ T253] ipv6_find_idev+0x102/0x170 [ 589.137560][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 589.137560][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 589.137560][ T253] netlink_rcv_skb+0x130/0x360 [ 589.137560][ T253] netlink_unicast+0x449/0x710 [ 589.137560][ T253] netlink_sendmsg+0x723/0xbe0 [ 589.137560][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 589.137560][ T253] ___sys_sendmsg+0xee/0x170 [ 589.137560][ T253] __sys_sendmsg+0xcd/0x170 [ 589.137560][ T253] do_syscall_64+0xc6/0x1e0 [ 589.137560][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 589.137560][ T253] [ 599.482409][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 599.482962][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 599.482962][ T253] dst_init+0x84/0x4a0 [ 599.482962][ T253] dst_alloc+0x97/0x150 [ 599.482962][ T253] ip6_dst_alloc+0x23/0x90 [ 599.482962][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 599.482962][ T253] ip6_pol_route+0x56f/0x840 [ 599.482962][ T253] fib6_rule_lookup+0x334/0x630 [ 599.482962][ T253] ip6_route_output_flags+0x259/0x480 [ 599.482962][ T253] inet6_rtm_getroute+0x980/0xf70 [ 599.482962][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 599.482962][ T253] netlink_rcv_skb+0x130/0x360 [ 599.482962][ T253] netlink_unicast+0x449/0x710 [ 599.482962][ T253] netlink_sendmsg+0x723/0xbe0 [ 599.482962][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 599.482962][ T253] ___sys_sendmsg+0xee/0x170 [ 599.482962][ T253] __sys_sendmsg+0xcd/0x170 [ 599.482962][ T253] do_syscall_64+0xc6/0x1e0 [ 599.482962][ T253] [ 599.485227][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 599.485227][ T253] netdev_get_by_index+0x5e/0x80 [ 599.485227][ T253] fib6_nh_init+0x3d8/0x1580 [ 599.485227][ T253] ip6_route_info_create+0xf18/0x17d0 [ 599.485227][ T253] addrconf_f6i_alloc+0x265/0x560 [ 599.485227][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 599.485227][ T253] addrconf_join_anycast+0x1c0/0x220 [ 599.485227][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 599.485227][ T253] addrconf_dad_completed+0x12b/0xe20 [ 599.485227][ T253] addrconf_dad_begin+0x310/0x670 [ 599.485227][ T253] addrconf_dad_work+0x10b/0xab0 [ 599.485227][ T253] process_one_work+0x84d/0x18a0 [ 599.485227][ T253] worker_thread+0x587/0xd30 [ 599.485227][ T253] kthread+0x28a/0x350 [ 599.485227][ T253] ret_from_fork+0x31/0x70 [ 599.485227][ T253] ret_from_fork_asm+0x1a/0x30 [ 599.485227][ T253] [ 599.487398][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 599.487398][ T253] netdev_get_by_index+0x5e/0x80 [ 599.487398][ T253] fib6_nh_init+0x3d8/0x1580 [ 599.487398][ T253] ip6_route_info_create+0xf18/0x17d0 [ 599.487398][ T253] ip6_route_add+0x1c/0x140 [ 599.487398][ T253] addrconf_prefix_route+0x2a6/0x430 [ 599.487398][ T253] inet6_addr_add+0x4f8/0xa40 [ 599.487398][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 599.487398][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 599.487398][ T253] netlink_rcv_skb+0x130/0x360 [ 599.487398][ T253] netlink_unicast+0x449/0x710 [ 599.487398][ T253] netlink_sendmsg+0x723/0xbe0 [ 599.487398][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 599.487398][ T253] ___sys_sendmsg+0xee/0x170 [ 599.487398][ T253] __sys_sendmsg+0xcd/0x170 [ 599.487398][ T253] do_syscall_64+0xc6/0x1e0 [ 599.487398][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 599.487398][ T253] [ 599.489658][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 599.489658][ T253] netdev_get_by_index+0x5e/0x80 [ 599.489658][ T253] fib6_nh_init+0x3d8/0x1580 [ 599.489658][ T253] ip6_route_info_create+0xf18/0x17d0 [ 599.489658][ T253] addrconf_f6i_alloc+0x315/0x560 [ 599.489658][ T253] ipv6_add_addr+0x411/0x2000 [ 599.489658][ T253] inet6_addr_add+0x30e/0xa40 [ 599.489658][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 599.489658][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 599.489658][ T253] netlink_rcv_skb+0x130/0x360 [ 599.489658][ T253] netlink_unicast+0x449/0x710 [ 599.489658][ T253] netlink_sendmsg+0x723/0xbe0 [ 599.489658][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 599.489658][ T253] ___sys_sendmsg+0xee/0x170 [ 599.489658][ T253] __sys_sendmsg+0xcd/0x170 [ 599.489658][ T253] do_syscall_64+0xc6/0x1e0 [ 599.489658][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 599.489658][ T253] [ 599.491905][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 599.491905][ T253] netdev_get_by_index+0x5e/0x80 [ 599.491905][ T253] fib6_nh_init+0x3d8/0x1580 [ 599.491905][ T253] ip6_route_info_create+0xf18/0x17d0 [ 599.491905][ T253] ip6_route_add+0x1c/0x140 [ 599.491905][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 599.491905][ T253] addrconf_add_dev+0xe2/0x170 [ 599.491905][ T253] inet6_addr_add+0x12f/0xa40 [ 599.491905][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 599.491905][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 599.491905][ T253] netlink_rcv_skb+0x130/0x360 [ 599.491905][ T253] netlink_unicast+0x449/0x710 [ 599.491905][ T253] netlink_sendmsg+0x723/0xbe0 [ 599.491905][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 599.491905][ T253] ___sys_sendmsg+0xee/0x170 [ 599.491905][ T253] __sys_sendmsg+0xcd/0x170 [ 599.491905][ T253] do_syscall_64+0xc6/0x1e0 [ 599.491905][ T253] [ 599.494139][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 599.494139][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 599.494139][ T253] ipv6_find_idev+0x102/0x170 [ 599.494139][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 599.494139][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 599.494139][ T253] netlink_rcv_skb+0x130/0x360 [ 599.494139][ T253] netlink_unicast+0x449/0x710 [ 599.494139][ T253] netlink_sendmsg+0x723/0xbe0 [ 599.494139][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 599.494139][ T253] ___sys_sendmsg+0xee/0x170 [ 599.494139][ T253] __sys_sendmsg+0xcd/0x170 [ 599.494139][ T253] do_syscall_64+0xc6/0x1e0 [ 599.494139][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 599.494139][ T253] [ 599.495875][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 599.495875][ T253] neigh_parms_alloc+0x1e5/0x510 [ 599.495875][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 599.495875][ T253] ipv6_find_idev+0x102/0x170 [ 599.495875][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 599.495875][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 599.495875][ T253] netlink_rcv_skb+0x130/0x360 [ 599.495875][ T253] netlink_unicast+0x449/0x710 [ 599.495875][ T253] netlink_sendmsg+0x723/0xbe0 [ 599.495875][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 599.495875][ T253] ___sys_sendmsg+0xee/0x170 [ 599.495875][ T253] __sys_sendmsg+0xcd/0x170 [ 599.495875][ T253] do_syscall_64+0xc6/0x1e0 [ 599.495875][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 599.495875][ T253] [ 609.594290][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 609.594861][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 609.594861][ T253] dst_init+0x84/0x4a0 [ 609.594861][ T253] dst_alloc+0x97/0x150 [ 609.594861][ T253] ip6_dst_alloc+0x23/0x90 [ 609.594861][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 609.594861][ T253] ip6_pol_route+0x56f/0x840 [ 609.594861][ T253] fib6_rule_lookup+0x334/0x630 [ 609.594861][ T253] ip6_route_output_flags+0x259/0x480 [ 609.594861][ T253] inet6_rtm_getroute+0x980/0xf70 [ 609.594861][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 609.594861][ T253] netlink_rcv_skb+0x130/0x360 [ 609.594861][ T253] netlink_unicast+0x449/0x710 [ 609.594861][ T253] netlink_sendmsg+0x723/0xbe0 [ 609.594861][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 609.594861][ T253] ___sys_sendmsg+0xee/0x170 [ 609.594861][ T253] __sys_sendmsg+0xcd/0x170 [ 609.594861][ T253] do_syscall_64+0xc6/0x1e0 [ 609.594861][ T253] [ 609.597101][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 609.597101][ T253] netdev_get_by_index+0x5e/0x80 [ 609.597101][ T253] fib6_nh_init+0x3d8/0x1580 [ 609.597101][ T253] ip6_route_info_create+0xf18/0x17d0 [ 609.597101][ T253] addrconf_f6i_alloc+0x265/0x560 [ 609.597101][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 609.597101][ T253] addrconf_join_anycast+0x1c0/0x220 [ 609.597101][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 609.597101][ T253] addrconf_dad_completed+0x12b/0xe20 [ 609.597101][ T253] addrconf_dad_begin+0x310/0x670 [ 609.597101][ T253] addrconf_dad_work+0x10b/0xab0 [ 609.597101][ T253] process_one_work+0x84d/0x18a0 [ 609.597101][ T253] worker_thread+0x587/0xd30 [ 609.597101][ T253] kthread+0x28a/0x350 [ 609.597101][ T253] ret_from_fork+0x31/0x70 [ 609.597101][ T253] ret_from_fork_asm+0x1a/0x30 [ 609.597101][ T253] [ 609.599261][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 609.599261][ T253] netdev_get_by_index+0x5e/0x80 [ 609.599261][ T253] fib6_nh_init+0x3d8/0x1580 [ 609.599261][ T253] ip6_route_info_create+0xf18/0x17d0 [ 609.599261][ T253] ip6_route_add+0x1c/0x140 [ 609.599261][ T253] addrconf_prefix_route+0x2a6/0x430 [ 609.599261][ T253] inet6_addr_add+0x4f8/0xa40 [ 609.599261][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 609.599261][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 609.599261][ T253] netlink_rcv_skb+0x130/0x360 [ 609.599261][ T253] netlink_unicast+0x449/0x710 [ 609.599261][ T253] netlink_sendmsg+0x723/0xbe0 [ 609.599261][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 609.599261][ T253] ___sys_sendmsg+0xee/0x170 [ 609.599261][ T253] __sys_sendmsg+0xcd/0x170 [ 609.599261][ T253] do_syscall_64+0xc6/0x1e0 [ 609.599261][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 609.599261][ T253] [ 609.601533][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 609.601533][ T253] netdev_get_by_index+0x5e/0x80 [ 609.601533][ T253] fib6_nh_init+0x3d8/0x1580 [ 609.601533][ T253] ip6_route_info_create+0xf18/0x17d0 [ 609.601533][ T253] addrconf_f6i_alloc+0x315/0x560 [ 609.601533][ T253] ipv6_add_addr+0x411/0x2000 [ 609.601533][ T253] inet6_addr_add+0x30e/0xa40 [ 609.601533][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 609.601533][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 609.601533][ T253] netlink_rcv_skb+0x130/0x360 [ 609.601533][ T253] netlink_unicast+0x449/0x710 [ 609.601533][ T253] netlink_sendmsg+0x723/0xbe0 [ 609.601533][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 609.601533][ T253] ___sys_sendmsg+0xee/0x170 [ 609.601533][ T253] __sys_sendmsg+0xcd/0x170 [ 609.601533][ T253] do_syscall_64+0xc6/0x1e0 [ 609.601533][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 609.601533][ T253] [ 609.603929][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 609.603929][ T253] netdev_get_by_index+0x5e/0x80 [ 609.603929][ T253] fib6_nh_init+0x3d8/0x1580 [ 609.603929][ T253] ip6_route_info_create+0xf18/0x17d0 [ 609.603929][ T253] ip6_route_add+0x1c/0x140 [ 609.603929][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 609.603929][ T253] addrconf_add_dev+0xe2/0x170 [ 609.603929][ T253] inet6_addr_add+0x12f/0xa40 [ 609.603929][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 609.603929][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 609.603929][ T253] netlink_rcv_skb+0x130/0x360 [ 609.603929][ T253] netlink_unicast+0x449/0x710 [ 609.603929][ T253] netlink_sendmsg+0x723/0xbe0 [ 609.603929][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 609.603929][ T253] ___sys_sendmsg+0xee/0x170 [ 609.603929][ T253] __sys_sendmsg+0xcd/0x170 [ 609.603929][ T253] do_syscall_64+0xc6/0x1e0 [ 609.603929][ T253] [ 609.606249][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 609.606249][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 609.606249][ T253] ipv6_find_idev+0x102/0x170 [ 609.606249][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 609.606249][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 609.606249][ T253] netlink_rcv_skb+0x130/0x360 [ 609.606249][ T253] netlink_unicast+0x449/0x710 [ 609.606249][ T253] netlink_sendmsg+0x723/0xbe0 [ 609.606249][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 609.606249][ T253] ___sys_sendmsg+0xee/0x170 [ 609.606249][ T253] __sys_sendmsg+0xcd/0x170 [ 609.606249][ T253] do_syscall_64+0xc6/0x1e0 [ 609.606249][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 609.606249][ T253] [ 609.607980][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 609.607980][ T253] neigh_parms_alloc+0x1e5/0x510 [ 609.607980][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 609.607980][ T253] ipv6_find_idev+0x102/0x170 [ 609.607980][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 609.607980][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 609.607980][ T253] netlink_rcv_skb+0x130/0x360 [ 609.607980][ T253] netlink_unicast+0x449/0x710 [ 609.607980][ T253] netlink_sendmsg+0x723/0xbe0 [ 609.607980][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 609.607980][ T253] ___sys_sendmsg+0xee/0x170 [ 609.607980][ T253] __sys_sendmsg+0xcd/0x170 [ 609.607980][ T253] do_syscall_64+0xc6/0x1e0 [ 609.607980][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 609.607980][ T253] [ 619.850329][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 619.850853][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 619.850853][ T253] dst_init+0x84/0x4a0 [ 619.850853][ T253] dst_alloc+0x97/0x150 [ 619.850853][ T253] ip6_dst_alloc+0x23/0x90 [ 619.850853][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 619.850853][ T253] ip6_pol_route+0x56f/0x840 [ 619.850853][ T253] fib6_rule_lookup+0x334/0x630 [ 619.850853][ T253] ip6_route_output_flags+0x259/0x480 [ 619.850853][ T253] inet6_rtm_getroute+0x980/0xf70 [ 619.850853][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 619.850853][ T253] netlink_rcv_skb+0x130/0x360 [ 619.850853][ T253] netlink_unicast+0x449/0x710 [ 619.850853][ T253] netlink_sendmsg+0x723/0xbe0 [ 619.850853][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 619.850853][ T253] ___sys_sendmsg+0xee/0x170 [ 619.850853][ T253] __sys_sendmsg+0xcd/0x170 [ 619.850853][ T253] do_syscall_64+0xc6/0x1e0 [ 619.850853][ T253] [ 619.853366][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 619.853366][ T253] netdev_get_by_index+0x5e/0x80 [ 619.853366][ T253] fib6_nh_init+0x3d8/0x1580 [ 619.853366][ T253] ip6_route_info_create+0xf18/0x17d0 [ 619.853366][ T253] addrconf_f6i_alloc+0x265/0x560 [ 619.853366][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 619.853366][ T253] addrconf_join_anycast+0x1c0/0x220 [ 619.853366][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 619.853366][ T253] addrconf_dad_completed+0x12b/0xe20 [ 619.853366][ T253] addrconf_dad_begin+0x310/0x670 [ 619.853366][ T253] addrconf_dad_work+0x10b/0xab0 [ 619.853366][ T253] process_one_work+0x84d/0x18a0 [ 619.853366][ T253] worker_thread+0x587/0xd30 [ 619.853366][ T253] kthread+0x28a/0x350 [ 619.853366][ T253] ret_from_fork+0x31/0x70 [ 619.853366][ T253] ret_from_fork_asm+0x1a/0x30 [ 619.853366][ T253] [ 619.855734][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 619.855734][ T253] netdev_get_by_index+0x5e/0x80 [ 619.855734][ T253] fib6_nh_init+0x3d8/0x1580 [ 619.855734][ T253] ip6_route_info_create+0xf18/0x17d0 [ 619.855734][ T253] ip6_route_add+0x1c/0x140 [ 619.855734][ T253] addrconf_prefix_route+0x2a6/0x430 [ 619.855734][ T253] inet6_addr_add+0x4f8/0xa40 [ 619.855734][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 619.855734][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 619.855734][ T253] netlink_rcv_skb+0x130/0x360 [ 619.855734][ T253] netlink_unicast+0x449/0x710 [ 619.855734][ T253] netlink_sendmsg+0x723/0xbe0 [ 619.855734][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 619.855734][ T253] ___sys_sendmsg+0xee/0x170 [ 619.855734][ T253] __sys_sendmsg+0xcd/0x170 [ 619.855734][ T253] do_syscall_64+0xc6/0x1e0 [ 619.855734][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 619.855734][ T253] [ 619.858218][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 619.858218][ T253] netdev_get_by_index+0x5e/0x80 [ 619.858218][ T253] fib6_nh_init+0x3d8/0x1580 [ 619.858218][ T253] ip6_route_info_create+0xf18/0x17d0 [ 619.858218][ T253] addrconf_f6i_alloc+0x315/0x560 [ 619.858218][ T253] ipv6_add_addr+0x411/0x2000 [ 619.858218][ T253] inet6_addr_add+0x30e/0xa40 [ 619.858218][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 619.858218][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 619.858218][ T253] netlink_rcv_skb+0x130/0x360 [ 619.858218][ T253] netlink_unicast+0x449/0x710 [ 619.858218][ T253] netlink_sendmsg+0x723/0xbe0 [ 619.858218][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 619.858218][ T253] ___sys_sendmsg+0xee/0x170 [ 619.858218][ T253] __sys_sendmsg+0xcd/0x170 [ 619.858218][ T253] do_syscall_64+0xc6/0x1e0 [ 619.858218][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 619.858218][ T253] [ 619.860696][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 619.860696][ T253] netdev_get_by_index+0x5e/0x80 [ 619.860696][ T253] fib6_nh_init+0x3d8/0x1580 [ 619.860696][ T253] ip6_route_info_create+0xf18/0x17d0 [ 619.860696][ T253] ip6_route_add+0x1c/0x140 [ 619.860696][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 619.860696][ T253] addrconf_add_dev+0xe2/0x170 [ 619.860696][ T253] inet6_addr_add+0x12f/0xa40 [ 619.860696][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 619.860696][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 619.860696][ T253] netlink_rcv_skb+0x130/0x360 [ 619.860696][ T253] netlink_unicast+0x449/0x710 [ 619.860696][ T253] netlink_sendmsg+0x723/0xbe0 [ 619.860696][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 619.860696][ T253] ___sys_sendmsg+0xee/0x170 [ 619.860696][ T253] __sys_sendmsg+0xcd/0x170 [ 619.860696][ T253] do_syscall_64+0xc6/0x1e0 [ 619.860696][ T253] [ 619.863161][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 619.863161][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 619.863161][ T253] ipv6_find_idev+0x102/0x170 [ 619.863161][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 619.863161][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 619.863161][ T253] netlink_rcv_skb+0x130/0x360 [ 619.863161][ T253] netlink_unicast+0x449/0x710 [ 619.863161][ T253] netlink_sendmsg+0x723/0xbe0 [ 619.863161][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 619.863161][ T253] ___sys_sendmsg+0xee/0x170 [ 619.863161][ T253] __sys_sendmsg+0xcd/0x170 [ 619.863161][ T253] do_syscall_64+0xc6/0x1e0 [ 619.863161][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 619.863161][ T253] [ 619.865076][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 619.865076][ T253] neigh_parms_alloc+0x1e5/0x510 [ 619.865076][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 619.865076][ T253] ipv6_find_idev+0x102/0x170 [ 619.865076][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 619.865076][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 619.865076][ T253] netlink_rcv_skb+0x130/0x360 [ 619.865076][ T253] netlink_unicast+0x449/0x710 [ 619.865076][ T253] netlink_sendmsg+0x723/0xbe0 [ 619.865076][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 619.865076][ T253] ___sys_sendmsg+0xee/0x170 [ 619.865076][ T253] __sys_sendmsg+0xcd/0x170 [ 619.865076][ T253] do_syscall_64+0xc6/0x1e0 [ 619.865076][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 619.865076][ T253] [ 629.914337][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 629.914899][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 629.914899][ T253] dst_init+0x84/0x4a0 [ 629.914899][ T253] dst_alloc+0x97/0x150 [ 629.914899][ T253] ip6_dst_alloc+0x23/0x90 [ 629.914899][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 629.914899][ T253] ip6_pol_route+0x56f/0x840 [ 629.914899][ T253] fib6_rule_lookup+0x334/0x630 [ 629.914899][ T253] ip6_route_output_flags+0x259/0x480 [ 629.914899][ T253] inet6_rtm_getroute+0x980/0xf70 [ 629.914899][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 629.914899][ T253] netlink_rcv_skb+0x130/0x360 [ 629.914899][ T253] netlink_unicast+0x449/0x710 [ 629.914899][ T253] netlink_sendmsg+0x723/0xbe0 [ 629.914899][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 629.914899][ T253] ___sys_sendmsg+0xee/0x170 [ 629.914899][ T253] __sys_sendmsg+0xcd/0x170 [ 629.914899][ T253] do_syscall_64+0xc6/0x1e0 [ 629.914899][ T253] [ 629.917202][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 629.917202][ T253] netdev_get_by_index+0x5e/0x80 [ 629.917202][ T253] fib6_nh_init+0x3d8/0x1580 [ 629.917202][ T253] ip6_route_info_create+0xf18/0x17d0 [ 629.917202][ T253] addrconf_f6i_alloc+0x265/0x560 [ 629.917202][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 629.917202][ T253] addrconf_join_anycast+0x1c0/0x220 [ 629.917202][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 629.917202][ T253] addrconf_dad_completed+0x12b/0xe20 [ 629.917202][ T253] addrconf_dad_begin+0x310/0x670 [ 629.917202][ T253] addrconf_dad_work+0x10b/0xab0 [ 629.917202][ T253] process_one_work+0x84d/0x18a0 [ 629.917202][ T253] worker_thread+0x587/0xd30 [ 629.917202][ T253] kthread+0x28a/0x350 [ 629.917202][ T253] ret_from_fork+0x31/0x70 [ 629.917202][ T253] ret_from_fork_asm+0x1a/0x30 [ 629.917202][ T253] [ 629.919414][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 629.919414][ T253] netdev_get_by_index+0x5e/0x80 [ 629.919414][ T253] fib6_nh_init+0x3d8/0x1580 [ 629.919414][ T253] ip6_route_info_create+0xf18/0x17d0 [ 629.919414][ T253] ip6_route_add+0x1c/0x140 [ 629.919414][ T253] addrconf_prefix_route+0x2a6/0x430 [ 629.919414][ T253] inet6_addr_add+0x4f8/0xa40 [ 629.919414][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 629.919414][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 629.919414][ T253] netlink_rcv_skb+0x130/0x360 [ 629.919414][ T253] netlink_unicast+0x449/0x710 [ 629.919414][ T253] netlink_sendmsg+0x723/0xbe0 [ 629.919414][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 629.919414][ T253] ___sys_sendmsg+0xee/0x170 [ 629.919414][ T253] __sys_sendmsg+0xcd/0x170 [ 629.919414][ T253] do_syscall_64+0xc6/0x1e0 [ 629.919414][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 629.919414][ T253] [ 629.921727][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 629.921727][ T253] netdev_get_by_index+0x5e/0x80 [ 629.921727][ T253] fib6_nh_init+0x3d8/0x1580 [ 629.921727][ T253] ip6_route_info_create+0xf18/0x17d0 [ 629.921727][ T253] addrconf_f6i_alloc+0x315/0x560 [ 629.921727][ T253] ipv6_add_addr+0x411/0x2000 [ 629.921727][ T253] inet6_addr_add+0x30e/0xa40 [ 629.921727][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 629.921727][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 629.921727][ T253] netlink_rcv_skb+0x130/0x360 [ 629.921727][ T253] netlink_unicast+0x449/0x710 [ 629.921727][ T253] netlink_sendmsg+0x723/0xbe0 [ 629.921727][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 629.921727][ T253] ___sys_sendmsg+0xee/0x170 [ 629.921727][ T253] __sys_sendmsg+0xcd/0x170 [ 629.921727][ T253] do_syscall_64+0xc6/0x1e0 [ 629.921727][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 629.921727][ T253] [ 629.924040][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 629.924040][ T253] netdev_get_by_index+0x5e/0x80 [ 629.924040][ T253] fib6_nh_init+0x3d8/0x1580 [ 629.924040][ T253] ip6_route_info_create+0xf18/0x17d0 [ 629.924040][ T253] ip6_route_add+0x1c/0x140 [ 629.924040][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 629.924040][ T253] addrconf_add_dev+0xe2/0x170 [ 629.924040][ T253] inet6_addr_add+0x12f/0xa40 [ 629.924040][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 629.924040][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 629.924040][ T253] netlink_rcv_skb+0x130/0x360 [ 629.924040][ T253] netlink_unicast+0x449/0x710 [ 629.924040][ T253] netlink_sendmsg+0x723/0xbe0 [ 629.924040][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 629.924040][ T253] ___sys_sendmsg+0xee/0x170 [ 629.924040][ T253] __sys_sendmsg+0xcd/0x170 [ 629.924040][ T253] do_syscall_64+0xc6/0x1e0 [ 629.924040][ T253] [ 629.926401][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 629.926401][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 629.926401][ T253] ipv6_find_idev+0x102/0x170 [ 629.926401][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 629.926401][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 629.926401][ T253] netlink_rcv_skb+0x130/0x360 [ 629.926401][ T253] netlink_unicast+0x449/0x710 [ 629.926401][ T253] netlink_sendmsg+0x723/0xbe0 [ 629.926401][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 629.926401][ T253] ___sys_sendmsg+0xee/0x170 [ 629.926401][ T253] __sys_sendmsg+0xcd/0x170 [ 629.926401][ T253] do_syscall_64+0xc6/0x1e0 [ 629.926401][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 629.926401][ T253] [ 629.928241][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 629.928241][ T253] neigh_parms_alloc+0x1e5/0x510 [ 629.928241][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 629.928241][ T253] ipv6_find_idev+0x102/0x170 [ 629.928241][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 629.928241][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 629.928241][ T253] netlink_rcv_skb+0x130/0x360 [ 629.928241][ T253] netlink_unicast+0x449/0x710 [ 629.928241][ T253] netlink_sendmsg+0x723/0xbe0 [ 629.928241][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 629.928241][ T253] ___sys_sendmsg+0xee/0x170 [ 629.928241][ T253] __sys_sendmsg+0xcd/0x170 [ 629.928241][ T253] do_syscall_64+0xc6/0x1e0 [ 629.928241][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 629.928241][ T253] [ 639.962392][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 639.962977][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 639.962977][ T253] dst_init+0x84/0x4a0 [ 639.962977][ T253] dst_alloc+0x97/0x150 [ 639.962977][ T253] ip6_dst_alloc+0x23/0x90 [ 639.962977][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 639.962977][ T253] ip6_pol_route+0x56f/0x840 [ 639.962977][ T253] fib6_rule_lookup+0x334/0x630 [ 639.962977][ T253] ip6_route_output_flags+0x259/0x480 [ 639.962977][ T253] inet6_rtm_getroute+0x980/0xf70 [ 639.962977][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 639.962977][ T253] netlink_rcv_skb+0x130/0x360 [ 639.962977][ T253] netlink_unicast+0x449/0x710 [ 639.962977][ T253] netlink_sendmsg+0x723/0xbe0 [ 639.962977][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 639.962977][ T253] ___sys_sendmsg+0xee/0x170 [ 639.962977][ T253] __sys_sendmsg+0xcd/0x170 [ 639.962977][ T253] do_syscall_64+0xc6/0x1e0 [ 639.962977][ T253] [ 639.965199][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 639.965199][ T253] netdev_get_by_index+0x5e/0x80 [ 639.965199][ T253] fib6_nh_init+0x3d8/0x1580 [ 639.965199][ T253] ip6_route_info_create+0xf18/0x17d0 [ 639.965199][ T253] addrconf_f6i_alloc+0x265/0x560 [ 639.965199][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 639.965199][ T253] addrconf_join_anycast+0x1c0/0x220 [ 639.965199][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 639.965199][ T253] addrconf_dad_completed+0x12b/0xe20 [ 639.965199][ T253] addrconf_dad_begin+0x310/0x670 [ 639.965199][ T253] addrconf_dad_work+0x10b/0xab0 [ 639.965199][ T253] process_one_work+0x84d/0x18a0 [ 639.965199][ T253] worker_thread+0x587/0xd30 [ 639.965199][ T253] kthread+0x28a/0x350 [ 639.965199][ T253] ret_from_fork+0x31/0x70 [ 639.965199][ T253] ret_from_fork_asm+0x1a/0x30 [ 639.965199][ T253] [ 639.967402][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 639.967402][ T253] netdev_get_by_index+0x5e/0x80 [ 639.967402][ T253] fib6_nh_init+0x3d8/0x1580 [ 639.967402][ T253] ip6_route_info_create+0xf18/0x17d0 [ 639.967402][ T253] ip6_route_add+0x1c/0x140 [ 639.967402][ T253] addrconf_prefix_route+0x2a6/0x430 [ 639.967402][ T253] inet6_addr_add+0x4f8/0xa40 [ 639.967402][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 639.967402][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 639.967402][ T253] netlink_rcv_skb+0x130/0x360 [ 639.967402][ T253] netlink_unicast+0x449/0x710 [ 639.967402][ T253] netlink_sendmsg+0x723/0xbe0 [ 639.967402][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 639.967402][ T253] ___sys_sendmsg+0xee/0x170 [ 639.967402][ T253] __sys_sendmsg+0xcd/0x170 [ 639.967402][ T253] do_syscall_64+0xc6/0x1e0 [ 639.967402][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 639.967402][ T253] [ 639.969722][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 639.969722][ T253] netdev_get_by_index+0x5e/0x80 [ 639.969722][ T253] fib6_nh_init+0x3d8/0x1580 [ 639.969722][ T253] ip6_route_info_create+0xf18/0x17d0 [ 639.969722][ T253] addrconf_f6i_alloc+0x315/0x560 [ 639.969722][ T253] ipv6_add_addr+0x411/0x2000 [ 639.969722][ T253] inet6_addr_add+0x30e/0xa40 [ 639.969722][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 639.969722][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 639.969722][ T253] netlink_rcv_skb+0x130/0x360 [ 639.969722][ T253] netlink_unicast+0x449/0x710 [ 639.969722][ T253] netlink_sendmsg+0x723/0xbe0 [ 639.969722][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 639.969722][ T253] ___sys_sendmsg+0xee/0x170 [ 639.969722][ T253] __sys_sendmsg+0xcd/0x170 [ 639.969722][ T253] do_syscall_64+0xc6/0x1e0 [ 639.969722][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 639.969722][ T253] [ 639.972048][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 639.972048][ T253] netdev_get_by_index+0x5e/0x80 [ 639.972048][ T253] fib6_nh_init+0x3d8/0x1580 [ 639.972048][ T253] ip6_route_info_create+0xf18/0x17d0 [ 639.972048][ T253] ip6_route_add+0x1c/0x140 [ 639.972048][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 639.972048][ T253] addrconf_add_dev+0xe2/0x170 [ 639.972048][ T253] inet6_addr_add+0x12f/0xa40 [ 639.972048][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 639.972048][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 639.972048][ T253] netlink_rcv_skb+0x130/0x360 [ 639.972048][ T253] netlink_unicast+0x449/0x710 [ 639.972048][ T253] netlink_sendmsg+0x723/0xbe0 [ 639.972048][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 639.972048][ T253] ___sys_sendmsg+0xee/0x170 [ 639.972048][ T253] __sys_sendmsg+0xcd/0x170 [ 639.972048][ T253] do_syscall_64+0xc6/0x1e0 [ 639.972048][ T253] [ 639.974304][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 639.974304][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 639.974304][ T253] ipv6_find_idev+0x102/0x170 [ 639.974304][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 639.974304][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 639.974304][ T253] netlink_rcv_skb+0x130/0x360 [ 639.974304][ T253] netlink_unicast+0x449/0x710 [ 639.974304][ T253] netlink_sendmsg+0x723/0xbe0 [ 639.974304][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 639.974304][ T253] ___sys_sendmsg+0xee/0x170 [ 639.974304][ T253] __sys_sendmsg+0xcd/0x170 [ 639.974304][ T253] do_syscall_64+0xc6/0x1e0 [ 639.974304][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 639.974304][ T253] [ 639.976064][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 639.976064][ T253] neigh_parms_alloc+0x1e5/0x510 [ 639.976064][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 639.976064][ T253] ipv6_find_idev+0x102/0x170 [ 639.976064][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 639.976064][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 639.976064][ T253] netlink_rcv_skb+0x130/0x360 [ 639.976064][ T253] netlink_unicast+0x449/0x710 [ 639.976064][ T253] netlink_sendmsg+0x723/0xbe0 [ 639.976064][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 639.976064][ T253] ___sys_sendmsg+0xee/0x170 [ 639.976064][ T253] __sys_sendmsg+0xcd/0x170 [ 639.976064][ T253] do_syscall_64+0xc6/0x1e0 [ 639.976064][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 639.976064][ T253] [ 650.218311][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 650.218835][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 650.218835][ T253] dst_init+0x84/0x4a0 [ 650.218835][ T253] dst_alloc+0x97/0x150 [ 650.218835][ T253] ip6_dst_alloc+0x23/0x90 [ 650.218835][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 650.218835][ T253] ip6_pol_route+0x56f/0x840 [ 650.218835][ T253] fib6_rule_lookup+0x334/0x630 [ 650.218835][ T253] ip6_route_output_flags+0x259/0x480 [ 650.218835][ T253] inet6_rtm_getroute+0x980/0xf70 [ 650.218835][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 650.218835][ T253] netlink_rcv_skb+0x130/0x360 [ 650.218835][ T253] netlink_unicast+0x449/0x710 [ 650.218835][ T253] netlink_sendmsg+0x723/0xbe0 [ 650.218835][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 650.218835][ T253] ___sys_sendmsg+0xee/0x170 [ 650.218835][ T253] __sys_sendmsg+0xcd/0x170 [ 650.218835][ T253] do_syscall_64+0xc6/0x1e0 [ 650.218835][ T253] [ 650.221186][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 650.221186][ T253] netdev_get_by_index+0x5e/0x80 [ 650.221186][ T253] fib6_nh_init+0x3d8/0x1580 [ 650.221186][ T253] ip6_route_info_create+0xf18/0x17d0 [ 650.221186][ T253] addrconf_f6i_alloc+0x265/0x560 [ 650.221186][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 650.221186][ T253] addrconf_join_anycast+0x1c0/0x220 [ 650.221186][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 650.221186][ T253] addrconf_dad_completed+0x12b/0xe20 [ 650.221186][ T253] addrconf_dad_begin+0x310/0x670 [ 650.221186][ T253] addrconf_dad_work+0x10b/0xab0 [ 650.221186][ T253] process_one_work+0x84d/0x18a0 [ 650.221186][ T253] worker_thread+0x587/0xd30 [ 650.221186][ T253] kthread+0x28a/0x350 [ 650.221186][ T253] ret_from_fork+0x31/0x70 [ 650.221186][ T253] ret_from_fork_asm+0x1a/0x30 [ 650.221186][ T253] [ 650.223378][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 650.223378][ T253] netdev_get_by_index+0x5e/0x80 [ 650.223378][ T253] fib6_nh_init+0x3d8/0x1580 [ 650.223378][ T253] ip6_route_info_create+0xf18/0x17d0 [ 650.223378][ T253] ip6_route_add+0x1c/0x140 [ 650.223378][ T253] addrconf_prefix_route+0x2a6/0x430 [ 650.223378][ T253] inet6_addr_add+0x4f8/0xa40 [ 650.223378][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 650.223378][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 650.223378][ T253] netlink_rcv_skb+0x130/0x360 [ 650.223378][ T253] netlink_unicast+0x449/0x710 [ 650.223378][ T253] netlink_sendmsg+0x723/0xbe0 [ 650.223378][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 650.223378][ T253] ___sys_sendmsg+0xee/0x170 [ 650.223378][ T253] __sys_sendmsg+0xcd/0x170 [ 650.223378][ T253] do_syscall_64+0xc6/0x1e0 [ 650.223378][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 650.223378][ T253] [ 650.225676][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 650.225676][ T253] netdev_get_by_index+0x5e/0x80 [ 650.225676][ T253] fib6_nh_init+0x3d8/0x1580 [ 650.225676][ T253] ip6_route_info_create+0xf18/0x17d0 [ 650.225676][ T253] addrconf_f6i_alloc+0x315/0x560 [ 650.225676][ T253] ipv6_add_addr+0x411/0x2000 [ 650.225676][ T253] inet6_addr_add+0x30e/0xa40 [ 650.225676][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 650.225676][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 650.225676][ T253] netlink_rcv_skb+0x130/0x360 [ 650.225676][ T253] netlink_unicast+0x449/0x710 [ 650.225676][ T253] netlink_sendmsg+0x723/0xbe0 [ 650.225676][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 650.225676][ T253] ___sys_sendmsg+0xee/0x170 [ 650.225676][ T253] __sys_sendmsg+0xcd/0x170 [ 650.225676][ T253] do_syscall_64+0xc6/0x1e0 [ 650.225676][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 650.225676][ T253] [ 650.228036][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 650.228036][ T253] netdev_get_by_index+0x5e/0x80 [ 650.228036][ T253] fib6_nh_init+0x3d8/0x1580 [ 650.228036][ T253] ip6_route_info_create+0xf18/0x17d0 [ 650.228036][ T253] ip6_route_add+0x1c/0x140 [ 650.228036][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 650.228036][ T253] addrconf_add_dev+0xe2/0x170 [ 650.228036][ T253] inet6_addr_add+0x12f/0xa40 [ 650.228036][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 650.228036][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 650.228036][ T253] netlink_rcv_skb+0x130/0x360 [ 650.228036][ T253] netlink_unicast+0x449/0x710 [ 650.228036][ T253] netlink_sendmsg+0x723/0xbe0 [ 650.228036][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 650.228036][ T253] ___sys_sendmsg+0xee/0x170 [ 650.228036][ T253] __sys_sendmsg+0xcd/0x170 [ 650.228036][ T253] do_syscall_64+0xc6/0x1e0 [ 650.228036][ T253] [ 650.230270][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 650.230270][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 650.230270][ T253] ipv6_find_idev+0x102/0x170 [ 650.230270][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 650.230270][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 650.230270][ T253] netlink_rcv_skb+0x130/0x360 [ 650.230270][ T253] netlink_unicast+0x449/0x710 [ 650.230270][ T253] netlink_sendmsg+0x723/0xbe0 [ 650.230270][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 650.230270][ T253] ___sys_sendmsg+0xee/0x170 [ 650.230270][ T253] __sys_sendmsg+0xcd/0x170 [ 650.230270][ T253] do_syscall_64+0xc6/0x1e0 [ 650.230270][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 650.230270][ T253] [ 650.232078][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 650.232078][ T253] neigh_parms_alloc+0x1e5/0x510 [ 650.232078][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 650.232078][ T253] ipv6_find_idev+0x102/0x170 [ 650.232078][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 650.232078][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 650.232078][ T253] netlink_rcv_skb+0x130/0x360 [ 650.232078][ T253] netlink_unicast+0x449/0x710 [ 650.232078][ T253] netlink_sendmsg+0x723/0xbe0 [ 650.232078][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 650.232078][ T253] ___sys_sendmsg+0xee/0x170 [ 650.232078][ T253] __sys_sendmsg+0xcd/0x170 [ 650.232078][ T253] do_syscall_64+0xc6/0x1e0 [ 650.232078][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 650.232078][ T253] [ 660.314385][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 660.314927][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 660.314927][ T253] dst_init+0x84/0x4a0 [ 660.314927][ T253] dst_alloc+0x97/0x150 [ 660.314927][ T253] ip6_dst_alloc+0x23/0x90 [ 660.314927][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 660.314927][ T253] ip6_pol_route+0x56f/0x840 [ 660.314927][ T253] fib6_rule_lookup+0x334/0x630 [ 660.314927][ T253] ip6_route_output_flags+0x259/0x480 [ 660.314927][ T253] inet6_rtm_getroute+0x980/0xf70 [ 660.314927][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 660.314927][ T253] netlink_rcv_skb+0x130/0x360 [ 660.314927][ T253] netlink_unicast+0x449/0x710 [ 660.314927][ T253] netlink_sendmsg+0x723/0xbe0 [ 660.314927][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 660.314927][ T253] ___sys_sendmsg+0xee/0x170 [ 660.314927][ T253] __sys_sendmsg+0xcd/0x170 [ 660.314927][ T253] do_syscall_64+0xc6/0x1e0 [ 660.314927][ T253] [ 660.317350][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 660.317350][ T253] netdev_get_by_index+0x5e/0x80 [ 660.317350][ T253] fib6_nh_init+0x3d8/0x1580 [ 660.317350][ T253] ip6_route_info_create+0xf18/0x17d0 [ 660.317350][ T253] addrconf_f6i_alloc+0x265/0x560 [ 660.317350][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 660.317350][ T253] addrconf_join_anycast+0x1c0/0x220 [ 660.317350][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 660.317350][ T253] addrconf_dad_completed+0x12b/0xe20 [ 660.317350][ T253] addrconf_dad_begin+0x310/0x670 [ 660.317350][ T253] addrconf_dad_work+0x10b/0xab0 [ 660.317350][ T253] process_one_work+0x84d/0x18a0 [ 660.317350][ T253] worker_thread+0x587/0xd30 [ 660.317350][ T253] kthread+0x28a/0x350 [ 660.317350][ T253] ret_from_fork+0x31/0x70 [ 660.317350][ T253] ret_from_fork_asm+0x1a/0x30 [ 660.317350][ T253] [ 660.319704][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 660.319704][ T253] netdev_get_by_index+0x5e/0x80 [ 660.319704][ T253] fib6_nh_init+0x3d8/0x1580 [ 660.319704][ T253] ip6_route_info_create+0xf18/0x17d0 [ 660.319704][ T253] ip6_route_add+0x1c/0x140 [ 660.319704][ T253] addrconf_prefix_route+0x2a6/0x430 [ 660.319704][ T253] inet6_addr_add+0x4f8/0xa40 [ 660.319704][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 660.319704][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 660.319704][ T253] netlink_rcv_skb+0x130/0x360 [ 660.319704][ T253] netlink_unicast+0x449/0x710 [ 660.319704][ T253] netlink_sendmsg+0x723/0xbe0 [ 660.319704][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 660.319704][ T253] ___sys_sendmsg+0xee/0x170 [ 660.319704][ T253] __sys_sendmsg+0xcd/0x170 [ 660.319704][ T253] do_syscall_64+0xc6/0x1e0 [ 660.319704][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 660.319704][ T253] [ 660.322040][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 660.322040][ T253] netdev_get_by_index+0x5e/0x80 [ 660.322040][ T253] fib6_nh_init+0x3d8/0x1580 [ 660.322040][ T253] ip6_route_info_create+0xf18/0x17d0 [ 660.322040][ T253] addrconf_f6i_alloc+0x315/0x560 [ 660.322040][ T253] ipv6_add_addr+0x411/0x2000 [ 660.322040][ T253] inet6_addr_add+0x30e/0xa40 [ 660.322040][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 660.322040][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 660.322040][ T253] netlink_rcv_skb+0x130/0x360 [ 660.322040][ T253] netlink_unicast+0x449/0x710 [ 660.322040][ T253] netlink_sendmsg+0x723/0xbe0 [ 660.322040][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 660.322040][ T253] ___sys_sendmsg+0xee/0x170 [ 660.322040][ T253] __sys_sendmsg+0xcd/0x170 [ 660.322040][ T253] do_syscall_64+0xc6/0x1e0 [ 660.322040][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 660.322040][ T253] [ 660.324316][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 660.324316][ T253] netdev_get_by_index+0x5e/0x80 [ 660.324316][ T253] fib6_nh_init+0x3d8/0x1580 [ 660.324316][ T253] ip6_route_info_create+0xf18/0x17d0 [ 660.324316][ T253] ip6_route_add+0x1c/0x140 [ 660.324316][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 660.324316][ T253] addrconf_add_dev+0xe2/0x170 [ 660.324316][ T253] inet6_addr_add+0x12f/0xa40 [ 660.324316][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 660.324316][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 660.324316][ T253] netlink_rcv_skb+0x130/0x360 [ 660.324316][ T253] netlink_unicast+0x449/0x710 [ 660.324316][ T253] netlink_sendmsg+0x723/0xbe0 [ 660.324316][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 660.324316][ T253] ___sys_sendmsg+0xee/0x170 [ 660.324316][ T253] __sys_sendmsg+0xcd/0x170 [ 660.324316][ T253] do_syscall_64+0xc6/0x1e0 [ 660.324316][ T253] [ 660.326579][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 660.326579][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 660.326579][ T253] ipv6_find_idev+0x102/0x170 [ 660.326579][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 660.326579][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 660.326579][ T253] netlink_rcv_skb+0x130/0x360 [ 660.326579][ T253] netlink_unicast+0x449/0x710 [ 660.326579][ T253] netlink_sendmsg+0x723/0xbe0 [ 660.326579][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 660.326579][ T253] ___sys_sendmsg+0xee/0x170 [ 660.326579][ T253] __sys_sendmsg+0xcd/0x170 [ 660.326579][ T253] do_syscall_64+0xc6/0x1e0 [ 660.326579][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 660.326579][ T253] [ 660.328340][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 660.328340][ T253] neigh_parms_alloc+0x1e5/0x510 [ 660.328340][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 660.328340][ T253] ipv6_find_idev+0x102/0x170 [ 660.328340][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 660.328340][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 660.328340][ T253] netlink_rcv_skb+0x130/0x360 [ 660.328340][ T253] netlink_unicast+0x449/0x710 [ 660.328340][ T253] netlink_sendmsg+0x723/0xbe0 [ 660.328340][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 660.328340][ T253] ___sys_sendmsg+0xee/0x170 [ 660.328340][ T253] __sys_sendmsg+0xcd/0x170 [ 660.328340][ T253] do_syscall_64+0xc6/0x1e0 [ 660.328340][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 660.328340][ T253] [ 670.570319][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 670.571045][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 670.571045][ T253] dst_init+0x84/0x4a0 [ 670.571045][ T253] dst_alloc+0x97/0x150 [ 670.571045][ T253] ip6_dst_alloc+0x23/0x90 [ 670.571045][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 670.571045][ T253] ip6_pol_route+0x56f/0x840 [ 670.571045][ T253] fib6_rule_lookup+0x334/0x630 [ 670.571045][ T253] ip6_route_output_flags+0x259/0x480 [ 670.571045][ T253] inet6_rtm_getroute+0x980/0xf70 [ 670.571045][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 670.571045][ T253] netlink_rcv_skb+0x130/0x360 [ 670.571045][ T253] netlink_unicast+0x449/0x710 [ 670.571045][ T253] netlink_sendmsg+0x723/0xbe0 [ 670.571045][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 670.571045][ T253] ___sys_sendmsg+0xee/0x170 [ 670.571045][ T253] __sys_sendmsg+0xcd/0x170 [ 670.571045][ T253] do_syscall_64+0xc6/0x1e0 [ 670.571045][ T253] [ 670.575184][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 670.575184][ T253] netdev_get_by_index+0x5e/0x80 [ 670.575184][ T253] fib6_nh_init+0x3d8/0x1580 [ 670.575184][ T253] ip6_route_info_create+0xf18/0x17d0 [ 670.575184][ T253] addrconf_f6i_alloc+0x265/0x560 [ 670.575184][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 670.575184][ T253] addrconf_join_anycast+0x1c0/0x220 [ 670.575184][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 670.575184][ T253] addrconf_dad_completed+0x12b/0xe20 [ 670.575184][ T253] addrconf_dad_begin+0x310/0x670 [ 670.575184][ T253] addrconf_dad_work+0x10b/0xab0 [ 670.575184][ T253] process_one_work+0x84d/0x18a0 [ 670.575184][ T253] worker_thread+0x587/0xd30 [ 670.575184][ T253] kthread+0x28a/0x350 [ 670.575184][ T253] ret_from_fork+0x31/0x70 [ 670.575184][ T253] ret_from_fork_asm+0x1a/0x30 [ 670.575184][ T253] [ 670.578665][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 670.578665][ T253] netdev_get_by_index+0x5e/0x80 [ 670.578665][ T253] fib6_nh_init+0x3d8/0x1580 [ 670.578665][ T253] ip6_route_info_create+0xf18/0x17d0 [ 670.578665][ T253] ip6_route_add+0x1c/0x140 [ 670.578665][ T253] addrconf_prefix_route+0x2a6/0x430 [ 670.578665][ T253] inet6_addr_add+0x4f8/0xa40 [ 670.578665][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 670.578665][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 670.578665][ T253] netlink_rcv_skb+0x130/0x360 [ 670.578665][ T253] netlink_unicast+0x449/0x710 [ 670.578665][ T253] netlink_sendmsg+0x723/0xbe0 [ 670.578665][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 670.578665][ T253] ___sys_sendmsg+0xee/0x170 [ 670.578665][ T253] __sys_sendmsg+0xcd/0x170 [ 670.578665][ T253] do_syscall_64+0xc6/0x1e0 [ 670.578665][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 670.578665][ T253] [ 670.582317][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 670.582317][ T253] netdev_get_by_index+0x5e/0x80 [ 670.582317][ T253] fib6_nh_init+0x3d8/0x1580 [ 670.582317][ T253] ip6_route_info_create+0xf18/0x17d0 [ 670.582317][ T253] addrconf_f6i_alloc+0x315/0x560 [ 670.582317][ T253] ipv6_add_addr+0x411/0x2000 [ 670.582317][ T253] inet6_addr_add+0x30e/0xa40 [ 670.582317][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 670.582317][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 670.582317][ T253] netlink_rcv_skb+0x130/0x360 [ 670.582317][ T253] netlink_unicast+0x449/0x710 [ 670.582317][ T253] netlink_sendmsg+0x723/0xbe0 [ 670.582317][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 670.582317][ T253] ___sys_sendmsg+0xee/0x170 [ 670.582317][ T253] __sys_sendmsg+0xcd/0x170 [ 670.582317][ T253] do_syscall_64+0xc6/0x1e0 [ 670.582317][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 670.582317][ T253] [ 670.586073][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 670.586073][ T253] netdev_get_by_index+0x5e/0x80 [ 670.586073][ T253] fib6_nh_init+0x3d8/0x1580 [ 670.586073][ T253] ip6_route_info_create+0xf18/0x17d0 [ 670.586073][ T253] ip6_route_add+0x1c/0x140 [ 670.586073][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 670.586073][ T253] addrconf_add_dev+0xe2/0x170 [ 670.586073][ T253] inet6_addr_add+0x12f/0xa40 [ 670.586073][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 670.586073][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 670.586073][ T253] netlink_rcv_skb+0x130/0x360 [ 670.586073][ T253] netlink_unicast+0x449/0x710 [ 670.586073][ T253] netlink_sendmsg+0x723/0xbe0 [ 670.586073][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 670.586073][ T253] ___sys_sendmsg+0xee/0x170 [ 670.586073][ T253] __sys_sendmsg+0xcd/0x170 [ 670.586073][ T253] do_syscall_64+0xc6/0x1e0 [ 670.586073][ T253] [ 670.589870][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 670.589870][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 670.589870][ T253] ipv6_find_idev+0x102/0x170 [ 670.589870][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 670.589870][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 670.589870][ T253] netlink_rcv_skb+0x130/0x360 [ 670.589870][ T253] netlink_unicast+0x449/0x710 [ 670.589870][ T253] netlink_sendmsg+0x723/0xbe0 [ 670.589870][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 670.589870][ T253] ___sys_sendmsg+0xee/0x170 [ 670.589870][ T253] __sys_sendmsg+0xcd/0x170 [ 670.589870][ T253] do_syscall_64+0xc6/0x1e0 [ 670.589870][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 670.589870][ T253] [ 670.592856][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 670.592856][ T253] neigh_parms_alloc+0x1e5/0x510 [ 670.592856][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 670.592856][ T253] ipv6_find_idev+0x102/0x170 [ 670.592856][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 670.592856][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 670.592856][ T253] netlink_rcv_skb+0x130/0x360 [ 670.592856][ T253] netlink_unicast+0x449/0x710 [ 670.592856][ T253] netlink_sendmsg+0x723/0xbe0 [ 670.592856][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 670.592856][ T253] ___sys_sendmsg+0xee/0x170 [ 670.592856][ T253] __sys_sendmsg+0xcd/0x170 [ 670.592856][ T253] do_syscall_64+0xc6/0x1e0 [ 670.592856][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 670.592856][ T253] [ 680.786305][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 680.786866][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 680.786866][ T253] dst_init+0x84/0x4a0 [ 680.786866][ T253] dst_alloc+0x97/0x150 [ 680.786866][ T253] ip6_dst_alloc+0x23/0x90 [ 680.786866][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 680.786866][ T253] ip6_pol_route+0x56f/0x840 [ 680.786866][ T253] fib6_rule_lookup+0x334/0x630 [ 680.786866][ T253] ip6_route_output_flags+0x259/0x480 [ 680.786866][ T253] inet6_rtm_getroute+0x980/0xf70 [ 680.786866][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 680.786866][ T253] netlink_rcv_skb+0x130/0x360 [ 680.786866][ T253] netlink_unicast+0x449/0x710 [ 680.786866][ T253] netlink_sendmsg+0x723/0xbe0 [ 680.786866][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 680.786866][ T253] ___sys_sendmsg+0xee/0x170 [ 680.786866][ T253] __sys_sendmsg+0xcd/0x170 [ 680.786866][ T253] do_syscall_64+0xc6/0x1e0 [ 680.786866][ T253] [ 680.789084][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 680.789084][ T253] netdev_get_by_index+0x5e/0x80 [ 680.789084][ T253] fib6_nh_init+0x3d8/0x1580 [ 680.789084][ T253] ip6_route_info_create+0xf18/0x17d0 [ 680.789084][ T253] addrconf_f6i_alloc+0x265/0x560 [ 680.789084][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 680.789084][ T253] addrconf_join_anycast+0x1c0/0x220 [ 680.789084][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 680.789084][ T253] addrconf_dad_completed+0x12b/0xe20 [ 680.789084][ T253] addrconf_dad_begin+0x310/0x670 [ 680.789084][ T253] addrconf_dad_work+0x10b/0xab0 [ 680.789084][ T253] process_one_work+0x84d/0x18a0 [ 680.789084][ T253] worker_thread+0x587/0xd30 [ 680.789084][ T253] kthread+0x28a/0x350 [ 680.789084][ T253] ret_from_fork+0x31/0x70 [ 680.789084][ T253] ret_from_fork_asm+0x1a/0x30 [ 680.789084][ T253] [ 680.791233][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 680.791233][ T253] netdev_get_by_index+0x5e/0x80 [ 680.791233][ T253] fib6_nh_init+0x3d8/0x1580 [ 680.791233][ T253] ip6_route_info_create+0xf18/0x17d0 [ 680.791233][ T253] ip6_route_add+0x1c/0x140 [ 680.791233][ T253] addrconf_prefix_route+0x2a6/0x430 [ 680.791233][ T253] inet6_addr_add+0x4f8/0xa40 [ 680.791233][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 680.791233][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 680.791233][ T253] netlink_rcv_skb+0x130/0x360 [ 680.791233][ T253] netlink_unicast+0x449/0x710 [ 680.791233][ T253] netlink_sendmsg+0x723/0xbe0 [ 680.791233][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 680.791233][ T253] ___sys_sendmsg+0xee/0x170 [ 680.791233][ T253] __sys_sendmsg+0xcd/0x170 [ 680.791233][ T253] do_syscall_64+0xc6/0x1e0 [ 680.791233][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 680.791233][ T253] [ 680.793480][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 680.793480][ T253] netdev_get_by_index+0x5e/0x80 [ 680.793480][ T253] fib6_nh_init+0x3d8/0x1580 [ 680.793480][ T253] ip6_route_info_create+0xf18/0x17d0 [ 680.793480][ T253] addrconf_f6i_alloc+0x315/0x560 [ 680.793480][ T253] ipv6_add_addr+0x411/0x2000 [ 680.793480][ T253] inet6_addr_add+0x30e/0xa40 [ 680.793480][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 680.793480][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 680.793480][ T253] netlink_rcv_skb+0x130/0x360 [ 680.793480][ T253] netlink_unicast+0x449/0x710 [ 680.793480][ T253] netlink_sendmsg+0x723/0xbe0 [ 680.793480][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 680.793480][ T253] ___sys_sendmsg+0xee/0x170 [ 680.793480][ T253] __sys_sendmsg+0xcd/0x170 [ 680.793480][ T253] do_syscall_64+0xc6/0x1e0 [ 680.793480][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 680.793480][ T253] [ 680.795731][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 680.795731][ T253] netdev_get_by_index+0x5e/0x80 [ 680.795731][ T253] fib6_nh_init+0x3d8/0x1580 [ 680.795731][ T253] ip6_route_info_create+0xf18/0x17d0 [ 680.795731][ T253] ip6_route_add+0x1c/0x140 [ 680.795731][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 680.795731][ T253] addrconf_add_dev+0xe2/0x170 [ 680.795731][ T253] inet6_addr_add+0x12f/0xa40 [ 680.795731][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 680.795731][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 680.795731][ T253] netlink_rcv_skb+0x130/0x360 [ 680.795731][ T253] netlink_unicast+0x449/0x710 [ 680.795731][ T253] netlink_sendmsg+0x723/0xbe0 [ 680.795731][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 680.795731][ T253] ___sys_sendmsg+0xee/0x170 [ 680.795731][ T253] __sys_sendmsg+0xcd/0x170 [ 680.795731][ T253] do_syscall_64+0xc6/0x1e0 [ 680.795731][ T253] [ 680.797957][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 680.797957][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 680.797957][ T253] ipv6_find_idev+0x102/0x170 [ 680.797957][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 680.797957][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 680.797957][ T253] netlink_rcv_skb+0x130/0x360 [ 680.797957][ T253] netlink_unicast+0x449/0x710 [ 680.797957][ T253] netlink_sendmsg+0x723/0xbe0 [ 680.797957][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 680.797957][ T253] ___sys_sendmsg+0xee/0x170 [ 680.797957][ T253] __sys_sendmsg+0xcd/0x170 [ 680.797957][ T253] do_syscall_64+0xc6/0x1e0 [ 680.797957][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 680.797957][ T253] [ 680.799709][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 680.799709][ T253] neigh_parms_alloc+0x1e5/0x510 [ 680.799709][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 680.799709][ T253] ipv6_find_idev+0x102/0x170 [ 680.799709][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 680.799709][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 680.799709][ T253] netlink_rcv_skb+0x130/0x360 [ 680.799709][ T253] netlink_unicast+0x449/0x710 [ 680.799709][ T253] netlink_sendmsg+0x723/0xbe0 [ 680.799709][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 680.799709][ T253] ___sys_sendmsg+0xee/0x170 [ 680.799709][ T253] __sys_sendmsg+0xcd/0x170 [ 680.799709][ T253] do_syscall_64+0xc6/0x1e0 [ 680.799709][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 680.799709][ T253] [ 691.042322][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 691.042848][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 691.042848][ T253] dst_init+0x84/0x4a0 [ 691.042848][ T253] dst_alloc+0x97/0x150 [ 691.042848][ T253] ip6_dst_alloc+0x23/0x90 [ 691.042848][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 691.042848][ T253] ip6_pol_route+0x56f/0x840 [ 691.042848][ T253] fib6_rule_lookup+0x334/0x630 [ 691.042848][ T253] ip6_route_output_flags+0x259/0x480 [ 691.042848][ T253] inet6_rtm_getroute+0x980/0xf70 [ 691.042848][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 691.042848][ T253] netlink_rcv_skb+0x130/0x360 [ 691.042848][ T253] netlink_unicast+0x449/0x710 [ 691.042848][ T253] netlink_sendmsg+0x723/0xbe0 [ 691.042848][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 691.042848][ T253] ___sys_sendmsg+0xee/0x170 [ 691.042848][ T253] __sys_sendmsg+0xcd/0x170 [ 691.042848][ T253] do_syscall_64+0xc6/0x1e0 [ 691.042848][ T253] [ 691.045212][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 691.045212][ T253] netdev_get_by_index+0x5e/0x80 [ 691.045212][ T253] fib6_nh_init+0x3d8/0x1580 [ 691.045212][ T253] ip6_route_info_create+0xf18/0x17d0 [ 691.045212][ T253] addrconf_f6i_alloc+0x265/0x560 [ 691.045212][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 691.045212][ T253] addrconf_join_anycast+0x1c0/0x220 [ 691.045212][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 691.045212][ T253] addrconf_dad_completed+0x12b/0xe20 [ 691.045212][ T253] addrconf_dad_begin+0x310/0x670 [ 691.045212][ T253] addrconf_dad_work+0x10b/0xab0 [ 691.045212][ T253] process_one_work+0x84d/0x18a0 [ 691.045212][ T253] worker_thread+0x587/0xd30 [ 691.045212][ T253] kthread+0x28a/0x350 [ 691.045212][ T253] ret_from_fork+0x31/0x70 [ 691.045212][ T253] ret_from_fork_asm+0x1a/0x30 [ 691.045212][ T253] [ 691.047437][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 691.047437][ T253] netdev_get_by_index+0x5e/0x80 [ 691.047437][ T253] fib6_nh_init+0x3d8/0x1580 [ 691.047437][ T253] ip6_route_info_create+0xf18/0x17d0 [ 691.047437][ T253] ip6_route_add+0x1c/0x140 [ 691.047437][ T253] addrconf_prefix_route+0x2a6/0x430 [ 691.047437][ T253] inet6_addr_add+0x4f8/0xa40 [ 691.047437][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 691.047437][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 691.047437][ T253] netlink_rcv_skb+0x130/0x360 [ 691.047437][ T253] netlink_unicast+0x449/0x710 [ 691.047437][ T253] netlink_sendmsg+0x723/0xbe0 [ 691.047437][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 691.047437][ T253] ___sys_sendmsg+0xee/0x170 [ 691.047437][ T253] __sys_sendmsg+0xcd/0x170 [ 691.047437][ T253] do_syscall_64+0xc6/0x1e0 [ 691.047437][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 691.047437][ T253] [ 691.050042][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 691.050042][ T253] netdev_get_by_index+0x5e/0x80 [ 691.050042][ T253] fib6_nh_init+0x3d8/0x1580 [ 691.050042][ T253] ip6_route_info_create+0xf18/0x17d0 [ 691.050042][ T253] addrconf_f6i_alloc+0x315/0x560 [ 691.050042][ T253] ipv6_add_addr+0x411/0x2000 [ 691.050042][ T253] inet6_addr_add+0x30e/0xa40 [ 691.050042][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 691.050042][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 691.050042][ T253] netlink_rcv_skb+0x130/0x360 [ 691.050042][ T253] netlink_unicast+0x449/0x710 [ 691.050042][ T253] netlink_sendmsg+0x723/0xbe0 [ 691.050042][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 691.050042][ T253] ___sys_sendmsg+0xee/0x170 [ 691.050042][ T253] __sys_sendmsg+0xcd/0x170 [ 691.050042][ T253] do_syscall_64+0xc6/0x1e0 [ 691.050042][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 691.050042][ T253] [ 691.052683][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 691.052683][ T253] netdev_get_by_index+0x5e/0x80 [ 691.052683][ T253] fib6_nh_init+0x3d8/0x1580 [ 691.052683][ T253] ip6_route_info_create+0xf18/0x17d0 [ 691.052683][ T253] ip6_route_add+0x1c/0x140 [ 691.052683][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 691.052683][ T253] addrconf_add_dev+0xe2/0x170 [ 691.052683][ T253] inet6_addr_add+0x12f/0xa40 [ 691.052683][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 691.052683][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 691.052683][ T253] netlink_rcv_skb+0x130/0x360 [ 691.052683][ T253] netlink_unicast+0x449/0x710 [ 691.052683][ T253] netlink_sendmsg+0x723/0xbe0 [ 691.052683][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 691.052683][ T253] ___sys_sendmsg+0xee/0x170 [ 691.052683][ T253] __sys_sendmsg+0xcd/0x170 [ 691.052683][ T253] do_syscall_64+0xc6/0x1e0 [ 691.052683][ T253] [ 691.055049][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 691.055049][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 691.055049][ T253] ipv6_find_idev+0x102/0x170 [ 691.055049][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 691.055049][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 691.055049][ T253] netlink_rcv_skb+0x130/0x360 [ 691.055049][ T253] netlink_unicast+0x449/0x710 [ 691.055049][ T253] netlink_sendmsg+0x723/0xbe0 [ 691.055049][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 691.055049][ T253] ___sys_sendmsg+0xee/0x170 [ 691.055049][ T253] __sys_sendmsg+0xcd/0x170 [ 691.055049][ T253] do_syscall_64+0xc6/0x1e0 [ 691.055049][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 691.055049][ T253] [ 691.056948][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 691.056948][ T253] neigh_parms_alloc+0x1e5/0x510 [ 691.056948][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 691.056948][ T253] ipv6_find_idev+0x102/0x170 [ 691.056948][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 691.056948][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 691.056948][ T253] netlink_rcv_skb+0x130/0x360 [ 691.056948][ T253] netlink_unicast+0x449/0x710 [ 691.056948][ T253] netlink_sendmsg+0x723/0xbe0 [ 691.056948][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 691.056948][ T253] ___sys_sendmsg+0xee/0x170 [ 691.056948][ T253] __sys_sendmsg+0xcd/0x170 [ 691.056948][ T253] do_syscall_64+0xc6/0x1e0 [ 691.056948][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 691.056948][ T253] [ 701.098323][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 701.098856][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 701.098856][ T253] dst_init+0x84/0x4a0 [ 701.098856][ T253] dst_alloc+0x97/0x150 [ 701.098856][ T253] ip6_dst_alloc+0x23/0x90 [ 701.098856][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 701.098856][ T253] ip6_pol_route+0x56f/0x840 [ 701.098856][ T253] fib6_rule_lookup+0x334/0x630 [ 701.098856][ T253] ip6_route_output_flags+0x259/0x480 [ 701.098856][ T253] inet6_rtm_getroute+0x980/0xf70 [ 701.098856][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 701.098856][ T253] netlink_rcv_skb+0x130/0x360 [ 701.098856][ T253] netlink_unicast+0x449/0x710 [ 701.098856][ T253] netlink_sendmsg+0x723/0xbe0 [ 701.098856][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 701.098856][ T253] ___sys_sendmsg+0xee/0x170 [ 701.098856][ T253] __sys_sendmsg+0xcd/0x170 [ 701.098856][ T253] do_syscall_64+0xc6/0x1e0 [ 701.098856][ T253] [ 701.101101][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 701.101101][ T253] netdev_get_by_index+0x5e/0x80 [ 701.101101][ T253] fib6_nh_init+0x3d8/0x1580 [ 701.101101][ T253] ip6_route_info_create+0xf18/0x17d0 [ 701.101101][ T253] addrconf_f6i_alloc+0x265/0x560 [ 701.101101][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 701.101101][ T253] addrconf_join_anycast+0x1c0/0x220 [ 701.101101][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 701.101101][ T253] addrconf_dad_completed+0x12b/0xe20 [ 701.101101][ T253] addrconf_dad_begin+0x310/0x670 [ 701.101101][ T253] addrconf_dad_work+0x10b/0xab0 [ 701.101101][ T253] process_one_work+0x84d/0x18a0 [ 701.101101][ T253] worker_thread+0x587/0xd30 [ 701.101101][ T253] kthread+0x28a/0x350 [ 701.101101][ T253] ret_from_fork+0x31/0x70 [ 701.101101][ T253] ret_from_fork_asm+0x1a/0x30 [ 701.101101][ T253] [ 701.103258][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 701.103258][ T253] netdev_get_by_index+0x5e/0x80 [ 701.103258][ T253] fib6_nh_init+0x3d8/0x1580 [ 701.103258][ T253] ip6_route_info_create+0xf18/0x17d0 [ 701.103258][ T253] ip6_route_add+0x1c/0x140 [ 701.103258][ T253] addrconf_prefix_route+0x2a6/0x430 [ 701.103258][ T253] inet6_addr_add+0x4f8/0xa40 [ 701.103258][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 701.103258][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 701.103258][ T253] netlink_rcv_skb+0x130/0x360 [ 701.103258][ T253] netlink_unicast+0x449/0x710 [ 701.103258][ T253] netlink_sendmsg+0x723/0xbe0 [ 701.103258][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 701.103258][ T253] ___sys_sendmsg+0xee/0x170 [ 701.103258][ T253] __sys_sendmsg+0xcd/0x170 [ 701.103258][ T253] do_syscall_64+0xc6/0x1e0 [ 701.103258][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 701.103258][ T253] [ 701.105510][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 701.105510][ T253] netdev_get_by_index+0x5e/0x80 [ 701.105510][ T253] fib6_nh_init+0x3d8/0x1580 [ 701.105510][ T253] ip6_route_info_create+0xf18/0x17d0 [ 701.105510][ T253] addrconf_f6i_alloc+0x315/0x560 [ 701.105510][ T253] ipv6_add_addr+0x411/0x2000 [ 701.105510][ T253] inet6_addr_add+0x30e/0xa40 [ 701.105510][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 701.105510][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 701.105510][ T253] netlink_rcv_skb+0x130/0x360 [ 701.105510][ T253] netlink_unicast+0x449/0x710 [ 701.105510][ T253] netlink_sendmsg+0x723/0xbe0 [ 701.105510][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 701.105510][ T253] ___sys_sendmsg+0xee/0x170 [ 701.105510][ T253] __sys_sendmsg+0xcd/0x170 [ 701.105510][ T253] do_syscall_64+0xc6/0x1e0 [ 701.105510][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 701.105510][ T253] [ 701.107784][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 701.107784][ T253] netdev_get_by_index+0x5e/0x80 [ 701.107784][ T253] fib6_nh_init+0x3d8/0x1580 [ 701.107784][ T253] ip6_route_info_create+0xf18/0x17d0 [ 701.107784][ T253] ip6_route_add+0x1c/0x140 [ 701.107784][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 701.107784][ T253] addrconf_add_dev+0xe2/0x170 [ 701.107784][ T253] inet6_addr_add+0x12f/0xa40 [ 701.107784][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 701.107784][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 701.107784][ T253] netlink_rcv_skb+0x130/0x360 [ 701.107784][ T253] netlink_unicast+0x449/0x710 [ 701.107784][ T253] netlink_sendmsg+0x723/0xbe0 [ 701.107784][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 701.107784][ T253] ___sys_sendmsg+0xee/0x170 [ 701.107784][ T253] __sys_sendmsg+0xcd/0x170 [ 701.107784][ T253] do_syscall_64+0xc6/0x1e0 [ 701.107784][ T253] [ 701.110022][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 701.110022][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 701.110022][ T253] ipv6_find_idev+0x102/0x170 [ 701.110022][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 701.110022][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 701.110022][ T253] netlink_rcv_skb+0x130/0x360 [ 701.110022][ T253] netlink_unicast+0x449/0x710 [ 701.110022][ T253] netlink_sendmsg+0x723/0xbe0 [ 701.110022][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 701.110022][ T253] ___sys_sendmsg+0xee/0x170 [ 701.110022][ T253] __sys_sendmsg+0xcd/0x170 [ 701.110022][ T253] do_syscall_64+0xc6/0x1e0 [ 701.110022][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 701.110022][ T253] [ 701.111758][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 701.111758][ T253] neigh_parms_alloc+0x1e5/0x510 [ 701.111758][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 701.111758][ T253] ipv6_find_idev+0x102/0x170 [ 701.111758][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 701.111758][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 701.111758][ T253] netlink_rcv_skb+0x130/0x360 [ 701.111758][ T253] netlink_unicast+0x449/0x710 [ 701.111758][ T253] netlink_sendmsg+0x723/0xbe0 [ 701.111758][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 701.111758][ T253] ___sys_sendmsg+0xee/0x170 [ 701.111758][ T253] __sys_sendmsg+0xcd/0x170 [ 701.111758][ T253] do_syscall_64+0xc6/0x1e0 [ 701.111758][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 701.111758][ T253] [ 711.354298][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 711.355013][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 711.355013][ T253] dst_init+0x84/0x4a0 [ 711.355013][ T253] dst_alloc+0x97/0x150 [ 711.355013][ T253] ip6_dst_alloc+0x23/0x90 [ 711.355013][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 711.355013][ T253] ip6_pol_route+0x56f/0x840 [ 711.355013][ T253] fib6_rule_lookup+0x334/0x630 [ 711.355013][ T253] ip6_route_output_flags+0x259/0x480 [ 711.355013][ T253] inet6_rtm_getroute+0x980/0xf70 [ 711.355013][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 711.355013][ T253] netlink_rcv_skb+0x130/0x360 [ 711.355013][ T253] netlink_unicast+0x449/0x710 [ 711.355013][ T253] netlink_sendmsg+0x723/0xbe0 [ 711.355013][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 711.355013][ T253] ___sys_sendmsg+0xee/0x170 [ 711.355013][ T253] __sys_sendmsg+0xcd/0x170 [ 711.355013][ T253] do_syscall_64+0xc6/0x1e0 [ 711.355013][ T253] [ 711.358532][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 711.358532][ T253] netdev_get_by_index+0x5e/0x80 [ 711.358532][ T253] fib6_nh_init+0x3d8/0x1580 [ 711.358532][ T253] ip6_route_info_create+0xf18/0x17d0 [ 711.358532][ T253] addrconf_f6i_alloc+0x265/0x560 [ 711.358532][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 711.358532][ T253] addrconf_join_anycast+0x1c0/0x220 [ 711.358532][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 711.358532][ T253] addrconf_dad_completed+0x12b/0xe20 [ 711.358532][ T253] addrconf_dad_begin+0x310/0x670 [ 711.358532][ T253] addrconf_dad_work+0x10b/0xab0 [ 711.358532][ T253] process_one_work+0x84d/0x18a0 [ 711.358532][ T253] worker_thread+0x587/0xd30 [ 711.358532][ T253] kthread+0x28a/0x350 [ 711.358532][ T253] ret_from_fork+0x31/0x70 [ 711.358532][ T253] ret_from_fork_asm+0x1a/0x30 [ 711.358532][ T253] [ 711.361938][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 711.361938][ T253] netdev_get_by_index+0x5e/0x80 [ 711.361938][ T253] fib6_nh_init+0x3d8/0x1580 [ 711.361938][ T253] ip6_route_info_create+0xf18/0x17d0 [ 711.361938][ T253] ip6_route_add+0x1c/0x140 [ 711.361938][ T253] addrconf_prefix_route+0x2a6/0x430 [ 711.361938][ T253] inet6_addr_add+0x4f8/0xa40 [ 711.361938][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 711.361938][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 711.361938][ T253] netlink_rcv_skb+0x130/0x360 [ 711.361938][ T253] netlink_unicast+0x449/0x710 [ 711.361938][ T253] netlink_sendmsg+0x723/0xbe0 [ 711.361938][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 711.361938][ T253] ___sys_sendmsg+0xee/0x170 [ 711.361938][ T253] __sys_sendmsg+0xcd/0x170 [ 711.361938][ T253] do_syscall_64+0xc6/0x1e0 [ 711.361938][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 711.361938][ T253] [ 711.365523][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 711.365523][ T253] netdev_get_by_index+0x5e/0x80 [ 711.365523][ T253] fib6_nh_init+0x3d8/0x1580 [ 711.365523][ T253] ip6_route_info_create+0xf18/0x17d0 [ 711.365523][ T253] addrconf_f6i_alloc+0x315/0x560 [ 711.365523][ T253] ipv6_add_addr+0x411/0x2000 [ 711.365523][ T253] inet6_addr_add+0x30e/0xa40 [ 711.365523][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 711.365523][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 711.365523][ T253] netlink_rcv_skb+0x130/0x360 [ 711.365523][ T253] netlink_unicast+0x449/0x710 [ 711.365523][ T253] netlink_sendmsg+0x723/0xbe0 [ 711.365523][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 711.365523][ T253] ___sys_sendmsg+0xee/0x170 [ 711.365523][ T253] __sys_sendmsg+0xcd/0x170 [ 711.365523][ T253] do_syscall_64+0xc6/0x1e0 [ 711.365523][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 711.365523][ T253] [ 711.369099][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 711.369099][ T253] netdev_get_by_index+0x5e/0x80 [ 711.369099][ T253] fib6_nh_init+0x3d8/0x1580 [ 711.369099][ T253] ip6_route_info_create+0xf18/0x17d0 [ 711.369099][ T253] ip6_route_add+0x1c/0x140 [ 711.369099][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 711.369099][ T253] addrconf_add_dev+0xe2/0x170 [ 711.369099][ T253] inet6_addr_add+0x12f/0xa40 [ 711.369099][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 711.369099][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 711.369099][ T253] netlink_rcv_skb+0x130/0x360 [ 711.369099][ T253] netlink_unicast+0x449/0x710 [ 711.369099][ T253] netlink_sendmsg+0x723/0xbe0 [ 711.369099][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 711.369099][ T253] ___sys_sendmsg+0xee/0x170 [ 711.369099][ T253] __sys_sendmsg+0xcd/0x170 [ 711.369099][ T253] do_syscall_64+0xc6/0x1e0 [ 711.369099][ T253] [ 711.372660][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 711.372660][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 711.372660][ T253] ipv6_find_idev+0x102/0x170 [ 711.372660][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 711.372660][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 711.372660][ T253] netlink_rcv_skb+0x130/0x360 [ 711.372660][ T253] netlink_unicast+0x449/0x710 [ 711.372660][ T253] netlink_sendmsg+0x723/0xbe0 [ 711.372660][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 711.372660][ T253] ___sys_sendmsg+0xee/0x170 [ 711.372660][ T253] __sys_sendmsg+0xcd/0x170 [ 711.372660][ T253] do_syscall_64+0xc6/0x1e0 [ 711.372660][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 711.372660][ T253] [ 711.375400][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 711.375400][ T253] neigh_parms_alloc+0x1e5/0x510 [ 711.375400][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 711.375400][ T253] ipv6_find_idev+0x102/0x170 [ 711.375400][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 711.375400][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 711.375400][ T253] netlink_rcv_skb+0x130/0x360 [ 711.375400][ T253] netlink_unicast+0x449/0x710 [ 711.375400][ T253] netlink_sendmsg+0x723/0xbe0 [ 711.375400][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 711.375400][ T253] ___sys_sendmsg+0xee/0x170 [ 711.375400][ T253] __sys_sendmsg+0xcd/0x170 [ 711.375400][ T253] do_syscall_64+0xc6/0x1e0 [ 711.375400][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 711.375400][ T253] [ 721.578289][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 721.578776][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 721.578776][ T253] dst_init+0x84/0x4a0 [ 721.578776][ T253] dst_alloc+0x97/0x150 [ 721.578776][ T253] ip6_dst_alloc+0x23/0x90 [ 721.578776][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 721.578776][ T253] ip6_pol_route+0x56f/0x840 [ 721.578776][ T253] fib6_rule_lookup+0x334/0x630 [ 721.578776][ T253] ip6_route_output_flags+0x259/0x480 [ 721.578776][ T253] inet6_rtm_getroute+0x980/0xf70 [ 721.578776][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 721.578776][ T253] netlink_rcv_skb+0x130/0x360 [ 721.578776][ T253] netlink_unicast+0x449/0x710 [ 721.578776][ T253] netlink_sendmsg+0x723/0xbe0 [ 721.578776][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 721.578776][ T253] ___sys_sendmsg+0xee/0x170 [ 721.578776][ T253] __sys_sendmsg+0xcd/0x170 [ 721.578776][ T253] do_syscall_64+0xc6/0x1e0 [ 721.578776][ T253] [ 721.581095][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 721.581095][ T253] netdev_get_by_index+0x5e/0x80 [ 721.581095][ T253] fib6_nh_init+0x3d8/0x1580 [ 721.581095][ T253] ip6_route_info_create+0xf18/0x17d0 [ 721.581095][ T253] addrconf_f6i_alloc+0x265/0x560 [ 721.581095][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 721.581095][ T253] addrconf_join_anycast+0x1c0/0x220 [ 721.581095][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 721.581095][ T253] addrconf_dad_completed+0x12b/0xe20 [ 721.581095][ T253] addrconf_dad_begin+0x310/0x670 [ 721.581095][ T253] addrconf_dad_work+0x10b/0xab0 [ 721.581095][ T253] process_one_work+0x84d/0x18a0 [ 721.581095][ T253] worker_thread+0x587/0xd30 [ 721.581095][ T253] kthread+0x28a/0x350 [ 721.581095][ T253] ret_from_fork+0x31/0x70 [ 721.581095][ T253] ret_from_fork_asm+0x1a/0x30 [ 721.581095][ T253] [ 721.583391][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 721.583391][ T253] netdev_get_by_index+0x5e/0x80 [ 721.583391][ T253] fib6_nh_init+0x3d8/0x1580 [ 721.583391][ T253] ip6_route_info_create+0xf18/0x17d0 [ 721.583391][ T253] ip6_route_add+0x1c/0x140 [ 721.583391][ T253] addrconf_prefix_route+0x2a6/0x430 [ 721.583391][ T253] inet6_addr_add+0x4f8/0xa40 [ 721.583391][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 721.583391][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 721.583391][ T253] netlink_rcv_skb+0x130/0x360 [ 721.583391][ T253] netlink_unicast+0x449/0x710 [ 721.583391][ T253] netlink_sendmsg+0x723/0xbe0 [ 721.583391][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 721.583391][ T253] ___sys_sendmsg+0xee/0x170 [ 721.583391][ T253] __sys_sendmsg+0xcd/0x170 [ 721.583391][ T253] do_syscall_64+0xc6/0x1e0 [ 721.583391][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 721.583391][ T253] [ 721.585781][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 721.585781][ T253] netdev_get_by_index+0x5e/0x80 [ 721.585781][ T253] fib6_nh_init+0x3d8/0x1580 [ 721.585781][ T253] ip6_route_info_create+0xf18/0x17d0 [ 721.585781][ T253] addrconf_f6i_alloc+0x315/0x560 [ 721.585781][ T253] ipv6_add_addr+0x411/0x2000 [ 721.585781][ T253] inet6_addr_add+0x30e/0xa40 [ 721.585781][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 721.585781][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 721.585781][ T253] netlink_rcv_skb+0x130/0x360 [ 721.585781][ T253] netlink_unicast+0x449/0x710 [ 721.585781][ T253] netlink_sendmsg+0x723/0xbe0 [ 721.585781][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 721.585781][ T253] ___sys_sendmsg+0xee/0x170 [ 721.585781][ T253] __sys_sendmsg+0xcd/0x170 [ 721.585781][ T253] do_syscall_64+0xc6/0x1e0 [ 721.585781][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 721.585781][ T253] [ 721.588233][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 721.588233][ T253] netdev_get_by_index+0x5e/0x80 [ 721.588233][ T253] fib6_nh_init+0x3d8/0x1580 [ 721.588233][ T253] ip6_route_info_create+0xf18/0x17d0 [ 721.588233][ T253] ip6_route_add+0x1c/0x140 [ 721.588233][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 721.588233][ T253] addrconf_add_dev+0xe2/0x170 [ 721.588233][ T253] inet6_addr_add+0x12f/0xa40 [ 721.588233][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 721.588233][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 721.588233][ T253] netlink_rcv_skb+0x130/0x360 [ 721.588233][ T253] netlink_unicast+0x449/0x710 [ 721.588233][ T253] netlink_sendmsg+0x723/0xbe0 [ 721.588233][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 721.588233][ T253] ___sys_sendmsg+0xee/0x170 [ 721.588233][ T253] __sys_sendmsg+0xcd/0x170 [ 721.588233][ T253] do_syscall_64+0xc6/0x1e0 [ 721.588233][ T253] [ 721.590542][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 721.590542][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 721.590542][ T253] ipv6_find_idev+0x102/0x170 [ 721.590542][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 721.590542][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 721.590542][ T253] netlink_rcv_skb+0x130/0x360 [ 721.590542][ T253] netlink_unicast+0x449/0x710 [ 721.590542][ T253] netlink_sendmsg+0x723/0xbe0 [ 721.590542][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 721.590542][ T253] ___sys_sendmsg+0xee/0x170 [ 721.590542][ T253] __sys_sendmsg+0xcd/0x170 [ 721.590542][ T253] do_syscall_64+0xc6/0x1e0 [ 721.590542][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 721.590542][ T253] [ 721.592391][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 721.592391][ T253] neigh_parms_alloc+0x1e5/0x510 [ 721.592391][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 721.592391][ T253] ipv6_find_idev+0x102/0x170 [ 721.592391][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 721.592391][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 721.592391][ T253] netlink_rcv_skb+0x130/0x360 [ 721.592391][ T253] netlink_unicast+0x449/0x710 [ 721.592391][ T253] netlink_sendmsg+0x723/0xbe0 [ 721.592391][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 721.592391][ T253] ___sys_sendmsg+0xee/0x170 [ 721.592391][ T253] __sys_sendmsg+0xcd/0x170 [ 721.592391][ T253] do_syscall_64+0xc6/0x1e0 [ 721.592391][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 721.592391][ T253] [ 731.722343][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 731.722810][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 731.722810][ T253] dst_init+0x84/0x4a0 [ 731.722810][ T253] dst_alloc+0x97/0x150 [ 731.722810][ T253] ip6_dst_alloc+0x23/0x90 [ 731.722810][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 731.722810][ T253] ip6_pol_route+0x56f/0x840 [ 731.722810][ T253] fib6_rule_lookup+0x334/0x630 [ 731.722810][ T253] ip6_route_output_flags+0x259/0x480 [ 731.722810][ T253] inet6_rtm_getroute+0x980/0xf70 [ 731.722810][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 731.722810][ T253] netlink_rcv_skb+0x130/0x360 [ 731.722810][ T253] netlink_unicast+0x449/0x710 [ 731.722810][ T253] netlink_sendmsg+0x723/0xbe0 [ 731.722810][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 731.722810][ T253] ___sys_sendmsg+0xee/0x170 [ 731.722810][ T253] __sys_sendmsg+0xcd/0x170 [ 731.722810][ T253] do_syscall_64+0xc6/0x1e0 [ 731.722810][ T253] [ 731.725060][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 731.725060][ T253] netdev_get_by_index+0x5e/0x80 [ 731.725060][ T253] fib6_nh_init+0x3d8/0x1580 [ 731.725060][ T253] ip6_route_info_create+0xf18/0x17d0 [ 731.725060][ T253] addrconf_f6i_alloc+0x265/0x560 [ 731.725060][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 731.725060][ T253] addrconf_join_anycast+0x1c0/0x220 [ 731.725060][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 731.725060][ T253] addrconf_dad_completed+0x12b/0xe20 [ 731.725060][ T253] addrconf_dad_begin+0x310/0x670 [ 731.725060][ T253] addrconf_dad_work+0x10b/0xab0 [ 731.725060][ T253] process_one_work+0x84d/0x18a0 [ 731.725060][ T253] worker_thread+0x587/0xd30 [ 731.725060][ T253] kthread+0x28a/0x350 [ 731.725060][ T253] ret_from_fork+0x31/0x70 [ 731.725060][ T253] ret_from_fork_asm+0x1a/0x30 [ 731.725060][ T253] [ 731.727225][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 731.727225][ T253] netdev_get_by_index+0x5e/0x80 [ 731.727225][ T253] fib6_nh_init+0x3d8/0x1580 [ 731.727225][ T253] ip6_route_info_create+0xf18/0x17d0 [ 731.727225][ T253] ip6_route_add+0x1c/0x140 [ 731.727225][ T253] addrconf_prefix_route+0x2a6/0x430 [ 731.727225][ T253] inet6_addr_add+0x4f8/0xa40 [ 731.727225][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 731.727225][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 731.727225][ T253] netlink_rcv_skb+0x130/0x360 [ 731.727225][ T253] netlink_unicast+0x449/0x710 [ 731.727225][ T253] netlink_sendmsg+0x723/0xbe0 [ 731.727225][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 731.727225][ T253] ___sys_sendmsg+0xee/0x170 [ 731.727225][ T253] __sys_sendmsg+0xcd/0x170 [ 731.727225][ T253] do_syscall_64+0xc6/0x1e0 [ 731.727225][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 731.727225][ T253] [ 731.729483][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 731.729483][ T253] netdev_get_by_index+0x5e/0x80 [ 731.729483][ T253] fib6_nh_init+0x3d8/0x1580 [ 731.729483][ T253] ip6_route_info_create+0xf18/0x17d0 [ 731.729483][ T253] addrconf_f6i_alloc+0x315/0x560 [ 731.729483][ T253] ipv6_add_addr+0x411/0x2000 [ 731.729483][ T253] inet6_addr_add+0x30e/0xa40 [ 731.729483][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 731.729483][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 731.729483][ T253] netlink_rcv_skb+0x130/0x360 [ 731.729483][ T253] netlink_unicast+0x449/0x710 [ 731.729483][ T253] netlink_sendmsg+0x723/0xbe0 [ 731.729483][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 731.729483][ T253] ___sys_sendmsg+0xee/0x170 [ 731.729483][ T253] __sys_sendmsg+0xcd/0x170 [ 731.729483][ T253] do_syscall_64+0xc6/0x1e0 [ 731.729483][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 731.729483][ T253] [ 731.731752][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 731.731752][ T253] netdev_get_by_index+0x5e/0x80 [ 731.731752][ T253] fib6_nh_init+0x3d8/0x1580 [ 731.731752][ T253] ip6_route_info_create+0xf18/0x17d0 [ 731.731752][ T253] ip6_route_add+0x1c/0x140 [ 731.731752][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 731.731752][ T253] addrconf_add_dev+0xe2/0x170 [ 731.731752][ T253] inet6_addr_add+0x12f/0xa40 [ 731.731752][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 731.731752][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 731.731752][ T253] netlink_rcv_skb+0x130/0x360 [ 731.731752][ T253] netlink_unicast+0x449/0x710 [ 731.731752][ T253] netlink_sendmsg+0x723/0xbe0 [ 731.731752][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 731.731752][ T253] ___sys_sendmsg+0xee/0x170 [ 731.731752][ T253] __sys_sendmsg+0xcd/0x170 [ 731.731752][ T253] do_syscall_64+0xc6/0x1e0 [ 731.731752][ T253] [ 731.733960][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 731.733960][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 731.733960][ T253] ipv6_find_idev+0x102/0x170 [ 731.733960][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 731.733960][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 731.733960][ T253] netlink_rcv_skb+0x130/0x360 [ 731.733960][ T253] netlink_unicast+0x449/0x710 [ 731.733960][ T253] netlink_sendmsg+0x723/0xbe0 [ 731.733960][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 731.733960][ T253] ___sys_sendmsg+0xee/0x170 [ 731.733960][ T253] __sys_sendmsg+0xcd/0x170 [ 731.733960][ T253] do_syscall_64+0xc6/0x1e0 [ 731.733960][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 731.733960][ T253] [ 731.735712][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 731.735712][ T253] neigh_parms_alloc+0x1e5/0x510 [ 731.735712][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 731.735712][ T253] ipv6_find_idev+0x102/0x170 [ 731.735712][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 731.735712][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 731.735712][ T253] netlink_rcv_skb+0x130/0x360 [ 731.735712][ T253] netlink_unicast+0x449/0x710 [ 731.735712][ T253] netlink_sendmsg+0x723/0xbe0 [ 731.735712][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 731.735712][ T253] ___sys_sendmsg+0xee/0x170 [ 731.735712][ T253] __sys_sendmsg+0xcd/0x170 [ 731.735712][ T253] do_syscall_64+0xc6/0x1e0 [ 731.735712][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 731.735712][ T253] [ 741.866259][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 741.866839][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 741.866839][ T253] dst_init+0x84/0x4a0 [ 741.866839][ T253] dst_alloc+0x97/0x150 [ 741.866839][ T253] ip6_dst_alloc+0x23/0x90 [ 741.866839][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 741.866839][ T253] ip6_pol_route+0x56f/0x840 [ 741.866839][ T253] fib6_rule_lookup+0x334/0x630 [ 741.866839][ T253] ip6_route_output_flags+0x259/0x480 [ 741.866839][ T253] inet6_rtm_getroute+0x980/0xf70 [ 741.866839][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 741.866839][ T253] netlink_rcv_skb+0x130/0x360 [ 741.866839][ T253] netlink_unicast+0x449/0x710 [ 741.866839][ T253] netlink_sendmsg+0x723/0xbe0 [ 741.866839][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 741.866839][ T253] ___sys_sendmsg+0xee/0x170 [ 741.866839][ T253] __sys_sendmsg+0xcd/0x170 [ 741.866839][ T253] do_syscall_64+0xc6/0x1e0 [ 741.866839][ T253] [ 741.869093][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 741.869093][ T253] netdev_get_by_index+0x5e/0x80 [ 741.869093][ T253] fib6_nh_init+0x3d8/0x1580 [ 741.869093][ T253] ip6_route_info_create+0xf18/0x17d0 [ 741.869093][ T253] addrconf_f6i_alloc+0x265/0x560 [ 741.869093][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 741.869093][ T253] addrconf_join_anycast+0x1c0/0x220 [ 741.869093][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 741.869093][ T253] addrconf_dad_completed+0x12b/0xe20 [ 741.869093][ T253] addrconf_dad_begin+0x310/0x670 [ 741.869093][ T253] addrconf_dad_work+0x10b/0xab0 [ 741.869093][ T253] process_one_work+0x84d/0x18a0 [ 741.869093][ T253] worker_thread+0x587/0xd30 [ 741.869093][ T253] kthread+0x28a/0x350 [ 741.869093][ T253] ret_from_fork+0x31/0x70 [ 741.869093][ T253] ret_from_fork_asm+0x1a/0x30 [ 741.869093][ T253] [ 741.871283][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 741.871283][ T253] netdev_get_by_index+0x5e/0x80 [ 741.871283][ T253] fib6_nh_init+0x3d8/0x1580 [ 741.871283][ T253] ip6_route_info_create+0xf18/0x17d0 [ 741.871283][ T253] ip6_route_add+0x1c/0x140 [ 741.871283][ T253] addrconf_prefix_route+0x2a6/0x430 [ 741.871283][ T253] inet6_addr_add+0x4f8/0xa40 [ 741.871283][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 741.871283][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 741.871283][ T253] netlink_rcv_skb+0x130/0x360 [ 741.871283][ T253] netlink_unicast+0x449/0x710 [ 741.871283][ T253] netlink_sendmsg+0x723/0xbe0 [ 741.871283][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 741.871283][ T253] ___sys_sendmsg+0xee/0x170 [ 741.871283][ T253] __sys_sendmsg+0xcd/0x170 [ 741.871283][ T253] do_syscall_64+0xc6/0x1e0 [ 741.871283][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 741.871283][ T253] [ 741.873594][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 741.873594][ T253] netdev_get_by_index+0x5e/0x80 [ 741.873594][ T253] fib6_nh_init+0x3d8/0x1580 [ 741.873594][ T253] ip6_route_info_create+0xf18/0x17d0 [ 741.873594][ T253] addrconf_f6i_alloc+0x315/0x560 [ 741.873594][ T253] ipv6_add_addr+0x411/0x2000 [ 741.873594][ T253] inet6_addr_add+0x30e/0xa40 [ 741.873594][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 741.873594][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 741.873594][ T253] netlink_rcv_skb+0x130/0x360 [ 741.873594][ T253] netlink_unicast+0x449/0x710 [ 741.873594][ T253] netlink_sendmsg+0x723/0xbe0 [ 741.873594][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 741.873594][ T253] ___sys_sendmsg+0xee/0x170 [ 741.873594][ T253] __sys_sendmsg+0xcd/0x170 [ 741.873594][ T253] do_syscall_64+0xc6/0x1e0 [ 741.873594][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 741.873594][ T253] [ 741.875873][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 741.875873][ T253] netdev_get_by_index+0x5e/0x80 [ 741.875873][ T253] fib6_nh_init+0x3d8/0x1580 [ 741.875873][ T253] ip6_route_info_create+0xf18/0x17d0 [ 741.875873][ T253] ip6_route_add+0x1c/0x140 [ 741.875873][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 741.875873][ T253] addrconf_add_dev+0xe2/0x170 [ 741.875873][ T253] inet6_addr_add+0x12f/0xa40 [ 741.875873][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 741.875873][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 741.875873][ T253] netlink_rcv_skb+0x130/0x360 [ 741.875873][ T253] netlink_unicast+0x449/0x710 [ 741.875873][ T253] netlink_sendmsg+0x723/0xbe0 [ 741.875873][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 741.875873][ T253] ___sys_sendmsg+0xee/0x170 [ 741.875873][ T253] __sys_sendmsg+0xcd/0x170 [ 741.875873][ T253] do_syscall_64+0xc6/0x1e0 [ 741.875873][ T253] [ 741.878097][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 741.878097][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 741.878097][ T253] ipv6_find_idev+0x102/0x170 [ 741.878097][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 741.878097][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 741.878097][ T253] netlink_rcv_skb+0x130/0x360 [ 741.878097][ T253] netlink_unicast+0x449/0x710 [ 741.878097][ T253] netlink_sendmsg+0x723/0xbe0 [ 741.878097][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 741.878097][ T253] ___sys_sendmsg+0xee/0x170 [ 741.878097][ T253] __sys_sendmsg+0xcd/0x170 [ 741.878097][ T253] do_syscall_64+0xc6/0x1e0 [ 741.878097][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 741.878097][ T253] [ 741.879850][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 741.879850][ T253] neigh_parms_alloc+0x1e5/0x510 [ 741.879850][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 741.879850][ T253] ipv6_find_idev+0x102/0x170 [ 741.879850][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 741.879850][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 741.879850][ T253] netlink_rcv_skb+0x130/0x360 [ 741.879850][ T253] netlink_unicast+0x449/0x710 [ 741.879850][ T253] netlink_sendmsg+0x723/0xbe0 [ 741.879850][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 741.879850][ T253] ___sys_sendmsg+0xee/0x170 [ 741.879850][ T253] __sys_sendmsg+0xcd/0x170 [ 741.879850][ T253] do_syscall_64+0xc6/0x1e0 [ 741.879850][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 741.879850][ T253] [ 751.922438][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 751.923087][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 751.923087][ T253] dst_init+0x84/0x4a0 [ 751.923087][ T253] dst_alloc+0x97/0x150 [ 751.923087][ T253] ip6_dst_alloc+0x23/0x90 [ 751.923087][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 751.923087][ T253] ip6_pol_route+0x56f/0x840 [ 751.923087][ T253] fib6_rule_lookup+0x334/0x630 [ 751.923087][ T253] ip6_route_output_flags+0x259/0x480 [ 751.923087][ T253] inet6_rtm_getroute+0x980/0xf70 [ 751.923087][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 751.923087][ T253] netlink_rcv_skb+0x130/0x360 [ 751.923087][ T253] netlink_unicast+0x449/0x710 [ 751.923087][ T253] netlink_sendmsg+0x723/0xbe0 [ 751.923087][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 751.923087][ T253] ___sys_sendmsg+0xee/0x170 [ 751.923087][ T253] __sys_sendmsg+0xcd/0x170 [ 751.923087][ T253] do_syscall_64+0xc6/0x1e0 [ 751.923087][ T253] [ 751.926597][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 751.926597][ T253] netdev_get_by_index+0x5e/0x80 [ 751.926597][ T253] fib6_nh_init+0x3d8/0x1580 [ 751.926597][ T253] ip6_route_info_create+0xf18/0x17d0 [ 751.926597][ T253] addrconf_f6i_alloc+0x265/0x560 [ 751.926597][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 751.926597][ T253] addrconf_join_anycast+0x1c0/0x220 [ 751.926597][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 751.926597][ T253] addrconf_dad_completed+0x12b/0xe20 [ 751.926597][ T253] addrconf_dad_begin+0x310/0x670 [ 751.926597][ T253] addrconf_dad_work+0x10b/0xab0 [ 751.926597][ T253] process_one_work+0x84d/0x18a0 [ 751.926597][ T253] worker_thread+0x587/0xd30 [ 751.926597][ T253] kthread+0x28a/0x350 [ 751.926597][ T253] ret_from_fork+0x31/0x70 [ 751.926597][ T253] ret_from_fork_asm+0x1a/0x30 [ 751.926597][ T253] [ 751.929945][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 751.929945][ T253] netdev_get_by_index+0x5e/0x80 [ 751.929945][ T253] fib6_nh_init+0x3d8/0x1580 [ 751.929945][ T253] ip6_route_info_create+0xf18/0x17d0 [ 751.929945][ T253] ip6_route_add+0x1c/0x140 [ 751.929945][ T253] addrconf_prefix_route+0x2a6/0x430 [ 751.929945][ T253] inet6_addr_add+0x4f8/0xa40 [ 751.929945][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 751.929945][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 751.929945][ T253] netlink_rcv_skb+0x130/0x360 [ 751.929945][ T253] netlink_unicast+0x449/0x710 [ 751.929945][ T253] netlink_sendmsg+0x723/0xbe0 [ 751.929945][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 751.929945][ T253] ___sys_sendmsg+0xee/0x170 [ 751.929945][ T253] __sys_sendmsg+0xcd/0x170 [ 751.929945][ T253] do_syscall_64+0xc6/0x1e0 [ 751.929945][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 751.929945][ T253] [ 751.933489][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 751.933489][ T253] netdev_get_by_index+0x5e/0x80 [ 751.933489][ T253] fib6_nh_init+0x3d8/0x1580 [ 751.933489][ T253] ip6_route_info_create+0xf18/0x17d0 [ 751.933489][ T253] addrconf_f6i_alloc+0x315/0x560 [ 751.933489][ T253] ipv6_add_addr+0x411/0x2000 [ 751.933489][ T253] inet6_addr_add+0x30e/0xa40 [ 751.933489][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 751.933489][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 751.933489][ T253] netlink_rcv_skb+0x130/0x360 [ 751.933489][ T253] netlink_unicast+0x449/0x710 [ 751.933489][ T253] netlink_sendmsg+0x723/0xbe0 [ 751.933489][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 751.933489][ T253] ___sys_sendmsg+0xee/0x170 [ 751.933489][ T253] __sys_sendmsg+0xcd/0x170 [ 751.933489][ T253] do_syscall_64+0xc6/0x1e0 [ 751.933489][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 751.933489][ T253] [ 751.937089][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 751.937089][ T253] netdev_get_by_index+0x5e/0x80 [ 751.937089][ T253] fib6_nh_init+0x3d8/0x1580 [ 751.937089][ T253] ip6_route_info_create+0xf18/0x17d0 [ 751.937089][ T253] ip6_route_add+0x1c/0x140 [ 751.937089][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 751.937089][ T253] addrconf_add_dev+0xe2/0x170 [ 751.937089][ T253] inet6_addr_add+0x12f/0xa40 [ 751.937089][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 751.937089][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 751.937089][ T253] netlink_rcv_skb+0x130/0x360 [ 751.937089][ T253] netlink_unicast+0x449/0x710 [ 751.937089][ T253] netlink_sendmsg+0x723/0xbe0 [ 751.937089][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 751.937089][ T253] ___sys_sendmsg+0xee/0x170 [ 751.937089][ T253] __sys_sendmsg+0xcd/0x170 [ 751.937089][ T253] do_syscall_64+0xc6/0x1e0 [ 751.937089][ T253] [ 751.940566][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 751.940566][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 751.940566][ T253] ipv6_find_idev+0x102/0x170 [ 751.940566][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 751.940566][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 751.940566][ T253] netlink_rcv_skb+0x130/0x360 [ 751.940566][ T253] netlink_unicast+0x449/0x710 [ 751.940566][ T253] netlink_sendmsg+0x723/0xbe0 [ 751.940566][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 751.940566][ T253] ___sys_sendmsg+0xee/0x170 [ 751.940566][ T253] __sys_sendmsg+0xcd/0x170 [ 751.940566][ T253] do_syscall_64+0xc6/0x1e0 [ 751.940566][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 751.940566][ T253] [ 751.943314][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 751.943314][ T253] neigh_parms_alloc+0x1e5/0x510 [ 751.943314][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 751.943314][ T253] ipv6_find_idev+0x102/0x170 [ 751.943314][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 751.943314][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 751.943314][ T253] netlink_rcv_skb+0x130/0x360 [ 751.943314][ T253] netlink_unicast+0x449/0x710 [ 751.943314][ T253] netlink_sendmsg+0x723/0xbe0 [ 751.943314][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 751.943314][ T253] ___sys_sendmsg+0xee/0x170 [ 751.943314][ T253] __sys_sendmsg+0xcd/0x170 [ 751.943314][ T253] do_syscall_64+0xc6/0x1e0 [ 751.943314][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 751.943314][ T253] [ 762.202307][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 762.202851][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 762.202851][ T253] dst_init+0x84/0x4a0 [ 762.202851][ T253] dst_alloc+0x97/0x150 [ 762.202851][ T253] ip6_dst_alloc+0x23/0x90 [ 762.202851][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 762.202851][ T253] ip6_pol_route+0x56f/0x840 [ 762.202851][ T253] fib6_rule_lookup+0x334/0x630 [ 762.202851][ T253] ip6_route_output_flags+0x259/0x480 [ 762.202851][ T253] inet6_rtm_getroute+0x980/0xf70 [ 762.202851][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 762.202851][ T253] netlink_rcv_skb+0x130/0x360 [ 762.202851][ T253] netlink_unicast+0x449/0x710 [ 762.202851][ T253] netlink_sendmsg+0x723/0xbe0 [ 762.202851][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 762.202851][ T253] ___sys_sendmsg+0xee/0x170 [ 762.202851][ T253] __sys_sendmsg+0xcd/0x170 [ 762.202851][ T253] do_syscall_64+0xc6/0x1e0 [ 762.202851][ T253] [ 762.205077][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 762.205077][ T253] netdev_get_by_index+0x5e/0x80 [ 762.205077][ T253] fib6_nh_init+0x3d8/0x1580 [ 762.205077][ T253] ip6_route_info_create+0xf18/0x17d0 [ 762.205077][ T253] addrconf_f6i_alloc+0x265/0x560 [ 762.205077][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 762.205077][ T253] addrconf_join_anycast+0x1c0/0x220 [ 762.205077][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 762.205077][ T253] addrconf_dad_completed+0x12b/0xe20 [ 762.205077][ T253] addrconf_dad_begin+0x310/0x670 [ 762.205077][ T253] addrconf_dad_work+0x10b/0xab0 [ 762.205077][ T253] process_one_work+0x84d/0x18a0 [ 762.205077][ T253] worker_thread+0x587/0xd30 [ 762.205077][ T253] kthread+0x28a/0x350 [ 762.205077][ T253] ret_from_fork+0x31/0x70 [ 762.205077][ T253] ret_from_fork_asm+0x1a/0x30 [ 762.205077][ T253] [ 762.207267][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 762.207267][ T253] netdev_get_by_index+0x5e/0x80 [ 762.207267][ T253] fib6_nh_init+0x3d8/0x1580 [ 762.207267][ T253] ip6_route_info_create+0xf18/0x17d0 [ 762.207267][ T253] ip6_route_add+0x1c/0x140 [ 762.207267][ T253] addrconf_prefix_route+0x2a6/0x430 [ 762.207267][ T253] inet6_addr_add+0x4f8/0xa40 [ 762.207267][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 762.207267][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 762.207267][ T253] netlink_rcv_skb+0x130/0x360 [ 762.207267][ T253] netlink_unicast+0x449/0x710 [ 762.207267][ T253] netlink_sendmsg+0x723/0xbe0 [ 762.207267][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 762.207267][ T253] ___sys_sendmsg+0xee/0x170 [ 762.207267][ T253] __sys_sendmsg+0xcd/0x170 [ 762.207267][ T253] do_syscall_64+0xc6/0x1e0 [ 762.207267][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 762.207267][ T253] [ 762.209543][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 762.209543][ T253] netdev_get_by_index+0x5e/0x80 [ 762.209543][ T253] fib6_nh_init+0x3d8/0x1580 [ 762.209543][ T253] ip6_route_info_create+0xf18/0x17d0 [ 762.209543][ T253] addrconf_f6i_alloc+0x315/0x560 [ 762.209543][ T253] ipv6_add_addr+0x411/0x2000 [ 762.209543][ T253] inet6_addr_add+0x30e/0xa40 [ 762.209543][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 762.209543][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 762.209543][ T253] netlink_rcv_skb+0x130/0x360 [ 762.209543][ T253] netlink_unicast+0x449/0x710 [ 762.209543][ T253] netlink_sendmsg+0x723/0xbe0 [ 762.209543][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 762.209543][ T253] ___sys_sendmsg+0xee/0x170 [ 762.209543][ T253] __sys_sendmsg+0xcd/0x170 [ 762.209543][ T253] do_syscall_64+0xc6/0x1e0 [ 762.209543][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 762.209543][ T253] [ 762.211794][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 762.211794][ T253] netdev_get_by_index+0x5e/0x80 [ 762.211794][ T253] fib6_nh_init+0x3d8/0x1580 [ 762.211794][ T253] ip6_route_info_create+0xf18/0x17d0 [ 762.211794][ T253] ip6_route_add+0x1c/0x140 [ 762.211794][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 762.211794][ T253] addrconf_add_dev+0xe2/0x170 [ 762.211794][ T253] inet6_addr_add+0x12f/0xa40 [ 762.211794][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 762.211794][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 762.211794][ T253] netlink_rcv_skb+0x130/0x360 [ 762.211794][ T253] netlink_unicast+0x449/0x710 [ 762.211794][ T253] netlink_sendmsg+0x723/0xbe0 [ 762.211794][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 762.211794][ T253] ___sys_sendmsg+0xee/0x170 [ 762.211794][ T253] __sys_sendmsg+0xcd/0x170 [ 762.211794][ T253] do_syscall_64+0xc6/0x1e0 [ 762.211794][ T253] [ 762.214040][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 762.214040][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 762.214040][ T253] ipv6_find_idev+0x102/0x170 [ 762.214040][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 762.214040][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 762.214040][ T253] netlink_rcv_skb+0x130/0x360 [ 762.214040][ T253] netlink_unicast+0x449/0x710 [ 762.214040][ T253] netlink_sendmsg+0x723/0xbe0 [ 762.214040][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 762.214040][ T253] ___sys_sendmsg+0xee/0x170 [ 762.214040][ T253] __sys_sendmsg+0xcd/0x170 [ 762.214040][ T253] do_syscall_64+0xc6/0x1e0 [ 762.214040][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 762.214040][ T253] [ 762.215934][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 762.215934][ T253] neigh_parms_alloc+0x1e5/0x510 [ 762.215934][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 762.215934][ T253] ipv6_find_idev+0x102/0x170 [ 762.215934][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 762.215934][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 762.215934][ T253] netlink_rcv_skb+0x130/0x360 [ 762.215934][ T253] netlink_unicast+0x449/0x710 [ 762.215934][ T253] netlink_sendmsg+0x723/0xbe0 [ 762.215934][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 762.215934][ T253] ___sys_sendmsg+0xee/0x170 [ 762.215934][ T253] __sys_sendmsg+0xcd/0x170 [ 762.215934][ T253] do_syscall_64+0xc6/0x1e0 [ 762.215934][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 762.215934][ T253] [ 772.370315][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 772.370964][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 772.370964][ T253] dst_init+0x84/0x4a0 [ 772.370964][ T253] dst_alloc+0x97/0x150 [ 772.370964][ T253] ip6_dst_alloc+0x23/0x90 [ 772.370964][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 772.370964][ T253] ip6_pol_route+0x56f/0x840 [ 772.370964][ T253] fib6_rule_lookup+0x334/0x630 [ 772.370964][ T253] ip6_route_output_flags+0x259/0x480 [ 772.370964][ T253] inet6_rtm_getroute+0x980/0xf70 [ 772.370964][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 772.370964][ T253] netlink_rcv_skb+0x130/0x360 [ 772.370964][ T253] netlink_unicast+0x449/0x710 [ 772.370964][ T253] netlink_sendmsg+0x723/0xbe0 [ 772.370964][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 772.370964][ T253] ___sys_sendmsg+0xee/0x170 [ 772.370964][ T253] __sys_sendmsg+0xcd/0x170 [ 772.370964][ T253] do_syscall_64+0xc6/0x1e0 [ 772.370964][ T253] [ 772.374407][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 772.374407][ T253] netdev_get_by_index+0x5e/0x80 [ 772.374407][ T253] fib6_nh_init+0x3d8/0x1580 [ 772.374407][ T253] ip6_route_info_create+0xf18/0x17d0 [ 772.374407][ T253] addrconf_f6i_alloc+0x265/0x560 [ 772.374407][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 772.374407][ T253] addrconf_join_anycast+0x1c0/0x220 [ 772.374407][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 772.374407][ T253] addrconf_dad_completed+0x12b/0xe20 [ 772.374407][ T253] addrconf_dad_begin+0x310/0x670 [ 772.374407][ T253] addrconf_dad_work+0x10b/0xab0 [ 772.374407][ T253] process_one_work+0x84d/0x18a0 [ 772.374407][ T253] worker_thread+0x587/0xd30 [ 772.374407][ T253] kthread+0x28a/0x350 [ 772.374407][ T253] ret_from_fork+0x31/0x70 [ 772.374407][ T253] ret_from_fork_asm+0x1a/0x30 [ 772.374407][ T253] [ 772.377849][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 772.377849][ T253] netdev_get_by_index+0x5e/0x80 [ 772.377849][ T253] fib6_nh_init+0x3d8/0x1580 [ 772.377849][ T253] ip6_route_info_create+0xf18/0x17d0 [ 772.377849][ T253] ip6_route_add+0x1c/0x140 [ 772.377849][ T253] addrconf_prefix_route+0x2a6/0x430 [ 772.377849][ T253] inet6_addr_add+0x4f8/0xa40 [ 772.377849][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 772.377849][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 772.377849][ T253] netlink_rcv_skb+0x130/0x360 [ 772.377849][ T253] netlink_unicast+0x449/0x710 [ 772.377849][ T253] netlink_sendmsg+0x723/0xbe0 [ 772.377849][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 772.377849][ T253] ___sys_sendmsg+0xee/0x170 [ 772.377849][ T253] __sys_sendmsg+0xcd/0x170 [ 772.377849][ T253] do_syscall_64+0xc6/0x1e0 [ 772.377849][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 772.377849][ T253] [ 772.381445][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 772.381445][ T253] netdev_get_by_index+0x5e/0x80 [ 772.381445][ T253] fib6_nh_init+0x3d8/0x1580 [ 772.381445][ T253] ip6_route_info_create+0xf18/0x17d0 [ 772.381445][ T253] addrconf_f6i_alloc+0x315/0x560 [ 772.381445][ T253] ipv6_add_addr+0x411/0x2000 [ 772.381445][ T253] inet6_addr_add+0x30e/0xa40 [ 772.381445][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 772.381445][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 772.381445][ T253] netlink_rcv_skb+0x130/0x360 [ 772.381445][ T253] netlink_unicast+0x449/0x710 [ 772.381445][ T253] netlink_sendmsg+0x723/0xbe0 [ 772.381445][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 772.381445][ T253] ___sys_sendmsg+0xee/0x170 [ 772.381445][ T253] __sys_sendmsg+0xcd/0x170 [ 772.381445][ T253] do_syscall_64+0xc6/0x1e0 [ 772.381445][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 772.381445][ T253] [ 772.384998][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 772.384998][ T253] netdev_get_by_index+0x5e/0x80 [ 772.384998][ T253] fib6_nh_init+0x3d8/0x1580 [ 772.384998][ T253] ip6_route_info_create+0xf18/0x17d0 [ 772.384998][ T253] ip6_route_add+0x1c/0x140 [ 772.384998][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 772.384998][ T253] addrconf_add_dev+0xe2/0x170 [ 772.384998][ T253] inet6_addr_add+0x12f/0xa40 [ 772.384998][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 772.384998][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 772.384998][ T253] netlink_rcv_skb+0x130/0x360 [ 772.384998][ T253] netlink_unicast+0x449/0x710 [ 772.384998][ T253] netlink_sendmsg+0x723/0xbe0 [ 772.384998][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 772.384998][ T253] ___sys_sendmsg+0xee/0x170 [ 772.384998][ T253] __sys_sendmsg+0xcd/0x170 [ 772.384998][ T253] do_syscall_64+0xc6/0x1e0 [ 772.384998][ T253] [ 772.388501][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 772.388501][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 772.388501][ T253] ipv6_find_idev+0x102/0x170 [ 772.388501][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 772.388501][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 772.388501][ T253] netlink_rcv_skb+0x130/0x360 [ 772.388501][ T253] netlink_unicast+0x449/0x710 [ 772.388501][ T253] netlink_sendmsg+0x723/0xbe0 [ 772.388501][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 772.388501][ T253] ___sys_sendmsg+0xee/0x170 [ 772.388501][ T253] __sys_sendmsg+0xcd/0x170 [ 772.388501][ T253] do_syscall_64+0xc6/0x1e0 [ 772.388501][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 772.388501][ T253] [ 772.391662][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 772.391662][ T253] neigh_parms_alloc+0x1e5/0x510 [ 772.391662][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 772.391662][ T253] ipv6_find_idev+0x102/0x170 [ 772.391662][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 772.391662][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 772.391662][ T253] netlink_rcv_skb+0x130/0x360 [ 772.391662][ T253] netlink_unicast+0x449/0x710 [ 772.391662][ T253] netlink_sendmsg+0x723/0xbe0 [ 772.391662][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 772.391662][ T253] ___sys_sendmsg+0xee/0x170 [ 772.391662][ T253] __sys_sendmsg+0xcd/0x170 [ 772.391662][ T253] do_syscall_64+0xc6/0x1e0 [ 772.391662][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 772.391662][ T253] [ 782.546299][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 782.546837][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 782.546837][ T253] dst_init+0x84/0x4a0 [ 782.546837][ T253] dst_alloc+0x97/0x150 [ 782.546837][ T253] ip6_dst_alloc+0x23/0x90 [ 782.546837][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 782.546837][ T253] ip6_pol_route+0x56f/0x840 [ 782.546837][ T253] fib6_rule_lookup+0x334/0x630 [ 782.546837][ T253] ip6_route_output_flags+0x259/0x480 [ 782.546837][ T253] inet6_rtm_getroute+0x980/0xf70 [ 782.546837][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 782.546837][ T253] netlink_rcv_skb+0x130/0x360 [ 782.546837][ T253] netlink_unicast+0x449/0x710 [ 782.546837][ T253] netlink_sendmsg+0x723/0xbe0 [ 782.546837][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 782.546837][ T253] ___sys_sendmsg+0xee/0x170 [ 782.546837][ T253] __sys_sendmsg+0xcd/0x170 [ 782.546837][ T253] do_syscall_64+0xc6/0x1e0 [ 782.546837][ T253] [ 782.549044][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 782.549044][ T253] netdev_get_by_index+0x5e/0x80 [ 782.549044][ T253] fib6_nh_init+0x3d8/0x1580 [ 782.549044][ T253] ip6_route_info_create+0xf18/0x17d0 [ 782.549044][ T253] addrconf_f6i_alloc+0x265/0x560 [ 782.549044][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 782.549044][ T253] addrconf_join_anycast+0x1c0/0x220 [ 782.549044][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 782.549044][ T253] addrconf_dad_completed+0x12b/0xe20 [ 782.549044][ T253] addrconf_dad_begin+0x310/0x670 [ 782.549044][ T253] addrconf_dad_work+0x10b/0xab0 [ 782.549044][ T253] process_one_work+0x84d/0x18a0 [ 782.549044][ T253] worker_thread+0x587/0xd30 [ 782.549044][ T253] kthread+0x28a/0x350 [ 782.549044][ T253] ret_from_fork+0x31/0x70 [ 782.549044][ T253] ret_from_fork_asm+0x1a/0x30 [ 782.549044][ T253] [ 782.551198][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 782.551198][ T253] netdev_get_by_index+0x5e/0x80 [ 782.551198][ T253] fib6_nh_init+0x3d8/0x1580 [ 782.551198][ T253] ip6_route_info_create+0xf18/0x17d0 [ 782.551198][ T253] ip6_route_add+0x1c/0x140 [ 782.551198][ T253] addrconf_prefix_route+0x2a6/0x430 [ 782.551198][ T253] inet6_addr_add+0x4f8/0xa40 [ 782.551198][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 782.551198][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 782.551198][ T253] netlink_rcv_skb+0x130/0x360 [ 782.551198][ T253] netlink_unicast+0x449/0x710 [ 782.551198][ T253] netlink_sendmsg+0x723/0xbe0 [ 782.551198][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 782.551198][ T253] ___sys_sendmsg+0xee/0x170 [ 782.551198][ T253] __sys_sendmsg+0xcd/0x170 [ 782.551198][ T253] do_syscall_64+0xc6/0x1e0 [ 782.551198][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 782.551198][ T253] [ 782.553442][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 782.553442][ T253] netdev_get_by_index+0x5e/0x80 [ 782.553442][ T253] fib6_nh_init+0x3d8/0x1580 [ 782.553442][ T253] ip6_route_info_create+0xf18/0x17d0 [ 782.553442][ T253] addrconf_f6i_alloc+0x315/0x560 [ 782.553442][ T253] ipv6_add_addr+0x411/0x2000 [ 782.553442][ T253] inet6_addr_add+0x30e/0xa40 [ 782.553442][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 782.553442][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 782.553442][ T253] netlink_rcv_skb+0x130/0x360 [ 782.553442][ T253] netlink_unicast+0x449/0x710 [ 782.553442][ T253] netlink_sendmsg+0x723/0xbe0 [ 782.553442][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 782.553442][ T253] ___sys_sendmsg+0xee/0x170 [ 782.553442][ T253] __sys_sendmsg+0xcd/0x170 [ 782.553442][ T253] do_syscall_64+0xc6/0x1e0 [ 782.553442][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 782.553442][ T253] [ 782.555693][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 782.555693][ T253] netdev_get_by_index+0x5e/0x80 [ 782.555693][ T253] fib6_nh_init+0x3d8/0x1580 [ 782.555693][ T253] ip6_route_info_create+0xf18/0x17d0 [ 782.555693][ T253] ip6_route_add+0x1c/0x140 [ 782.555693][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 782.555693][ T253] addrconf_add_dev+0xe2/0x170 [ 782.555693][ T253] inet6_addr_add+0x12f/0xa40 [ 782.555693][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 782.555693][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 782.555693][ T253] netlink_rcv_skb+0x130/0x360 [ 782.555693][ T253] netlink_unicast+0x449/0x710 [ 782.555693][ T253] netlink_sendmsg+0x723/0xbe0 [ 782.555693][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 782.555693][ T253] ___sys_sendmsg+0xee/0x170 [ 782.555693][ T253] __sys_sendmsg+0xcd/0x170 [ 782.555693][ T253] do_syscall_64+0xc6/0x1e0 [ 782.555693][ T253] [ 782.557894][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 782.557894][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 782.557894][ T253] ipv6_find_idev+0x102/0x170 [ 782.557894][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 782.557894][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 782.557894][ T253] netlink_rcv_skb+0x130/0x360 [ 782.557894][ T253] netlink_unicast+0x449/0x710 [ 782.557894][ T253] netlink_sendmsg+0x723/0xbe0 [ 782.557894][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 782.557894][ T253] ___sys_sendmsg+0xee/0x170 [ 782.557894][ T253] __sys_sendmsg+0xcd/0x170 [ 782.557894][ T253] do_syscall_64+0xc6/0x1e0 [ 782.557894][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 782.557894][ T253] [ 782.559666][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 782.559666][ T253] neigh_parms_alloc+0x1e5/0x510 [ 782.559666][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 782.559666][ T253] ipv6_find_idev+0x102/0x170 [ 782.559666][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 782.559666][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 782.559666][ T253] netlink_rcv_skb+0x130/0x360 [ 782.559666][ T253] netlink_unicast+0x449/0x710 [ 782.559666][ T253] netlink_sendmsg+0x723/0xbe0 [ 782.559666][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 782.559666][ T253] ___sys_sendmsg+0xee/0x170 [ 782.559666][ T253] __sys_sendmsg+0xcd/0x170 [ 782.559666][ T253] do_syscall_64+0xc6/0x1e0 [ 782.559666][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 782.559666][ T253] [ 792.802351][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 792.802842][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 792.802842][ T253] dst_init+0x84/0x4a0 [ 792.802842][ T253] dst_alloc+0x97/0x150 [ 792.802842][ T253] ip6_dst_alloc+0x23/0x90 [ 792.802842][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 792.802842][ T253] ip6_pol_route+0x56f/0x840 [ 792.802842][ T253] fib6_rule_lookup+0x334/0x630 [ 792.802842][ T253] ip6_route_output_flags+0x259/0x480 [ 792.802842][ T253] inet6_rtm_getroute+0x980/0xf70 [ 792.802842][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 792.802842][ T253] netlink_rcv_skb+0x130/0x360 [ 792.802842][ T253] netlink_unicast+0x449/0x710 [ 792.802842][ T253] netlink_sendmsg+0x723/0xbe0 [ 792.802842][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 792.802842][ T253] ___sys_sendmsg+0xee/0x170 [ 792.802842][ T253] __sys_sendmsg+0xcd/0x170 [ 792.802842][ T253] do_syscall_64+0xc6/0x1e0 [ 792.802842][ T253] [ 792.805053][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 792.805053][ T253] netdev_get_by_index+0x5e/0x80 [ 792.805053][ T253] fib6_nh_init+0x3d8/0x1580 [ 792.805053][ T253] ip6_route_info_create+0xf18/0x17d0 [ 792.805053][ T253] addrconf_f6i_alloc+0x265/0x560 [ 792.805053][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 792.805053][ T253] addrconf_join_anycast+0x1c0/0x220 [ 792.805053][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 792.805053][ T253] addrconf_dad_completed+0x12b/0xe20 [ 792.805053][ T253] addrconf_dad_begin+0x310/0x670 [ 792.805053][ T253] addrconf_dad_work+0x10b/0xab0 [ 792.805053][ T253] process_one_work+0x84d/0x18a0 [ 792.805053][ T253] worker_thread+0x587/0xd30 [ 792.805053][ T253] kthread+0x28a/0x350 [ 792.805053][ T253] ret_from_fork+0x31/0x70 [ 792.805053][ T253] ret_from_fork_asm+0x1a/0x30 [ 792.805053][ T253] [ 792.807225][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 792.807225][ T253] netdev_get_by_index+0x5e/0x80 [ 792.807225][ T253] fib6_nh_init+0x3d8/0x1580 [ 792.807225][ T253] ip6_route_info_create+0xf18/0x17d0 [ 792.807225][ T253] ip6_route_add+0x1c/0x140 [ 792.807225][ T253] addrconf_prefix_route+0x2a6/0x430 [ 792.807225][ T253] inet6_addr_add+0x4f8/0xa40 [ 792.807225][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 792.807225][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 792.807225][ T253] netlink_rcv_skb+0x130/0x360 [ 792.807225][ T253] netlink_unicast+0x449/0x710 [ 792.807225][ T253] netlink_sendmsg+0x723/0xbe0 [ 792.807225][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 792.807225][ T253] ___sys_sendmsg+0xee/0x170 [ 792.807225][ T253] __sys_sendmsg+0xcd/0x170 [ 792.807225][ T253] do_syscall_64+0xc6/0x1e0 [ 792.807225][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 792.807225][ T253] [ 792.809467][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 792.809467][ T253] netdev_get_by_index+0x5e/0x80 [ 792.809467][ T253] fib6_nh_init+0x3d8/0x1580 [ 792.809467][ T253] ip6_route_info_create+0xf18/0x17d0 [ 792.809467][ T253] addrconf_f6i_alloc+0x315/0x560 [ 792.809467][ T253] ipv6_add_addr+0x411/0x2000 [ 792.809467][ T253] inet6_addr_add+0x30e/0xa40 [ 792.809467][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 792.809467][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 792.809467][ T253] netlink_rcv_skb+0x130/0x360 [ 792.809467][ T253] netlink_unicast+0x449/0x710 [ 792.809467][ T253] netlink_sendmsg+0x723/0xbe0 [ 792.809467][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 792.809467][ T253] ___sys_sendmsg+0xee/0x170 [ 792.809467][ T253] __sys_sendmsg+0xcd/0x170 [ 792.809467][ T253] do_syscall_64+0xc6/0x1e0 [ 792.809467][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 792.809467][ T253] [ 792.811717][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 792.811717][ T253] netdev_get_by_index+0x5e/0x80 [ 792.811717][ T253] fib6_nh_init+0x3d8/0x1580 [ 792.811717][ T253] ip6_route_info_create+0xf18/0x17d0 [ 792.811717][ T253] ip6_route_add+0x1c/0x140 [ 792.811717][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 792.811717][ T253] addrconf_add_dev+0xe2/0x170 [ 792.811717][ T253] inet6_addr_add+0x12f/0xa40 [ 792.811717][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 792.811717][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 792.811717][ T253] netlink_rcv_skb+0x130/0x360 [ 792.811717][ T253] netlink_unicast+0x449/0x710 [ 792.811717][ T253] netlink_sendmsg+0x723/0xbe0 [ 792.811717][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 792.811717][ T253] ___sys_sendmsg+0xee/0x170 [ 792.811717][ T253] __sys_sendmsg+0xcd/0x170 [ 792.811717][ T253] do_syscall_64+0xc6/0x1e0 [ 792.811717][ T253] [ 792.813951][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 792.813951][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 792.813951][ T253] ipv6_find_idev+0x102/0x170 [ 792.813951][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 792.813951][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 792.813951][ T253] netlink_rcv_skb+0x130/0x360 [ 792.813951][ T253] netlink_unicast+0x449/0x710 [ 792.813951][ T253] netlink_sendmsg+0x723/0xbe0 [ 792.813951][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 792.813951][ T253] ___sys_sendmsg+0xee/0x170 [ 792.813951][ T253] __sys_sendmsg+0xcd/0x170 [ 792.813951][ T253] do_syscall_64+0xc6/0x1e0 [ 792.813951][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 792.813951][ T253] [ 792.815698][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 792.815698][ T253] neigh_parms_alloc+0x1e5/0x510 [ 792.815698][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 792.815698][ T253] ipv6_find_idev+0x102/0x170 [ 792.815698][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 792.815698][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 792.815698][ T253] netlink_rcv_skb+0x130/0x360 [ 792.815698][ T253] netlink_unicast+0x449/0x710 [ 792.815698][ T253] netlink_sendmsg+0x723/0xbe0 [ 792.815698][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 792.815698][ T253] ___sys_sendmsg+0xee/0x170 [ 792.815698][ T253] __sys_sendmsg+0xcd/0x170 [ 792.815698][ T253] do_syscall_64+0xc6/0x1e0 [ 792.815698][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 792.815698][ T253] [ 802.826317][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 802.826809][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 802.826809][ T253] dst_init+0x84/0x4a0 [ 802.826809][ T253] dst_alloc+0x97/0x150 [ 802.826809][ T253] ip6_dst_alloc+0x23/0x90 [ 802.826809][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 802.826809][ T253] ip6_pol_route+0x56f/0x840 [ 802.826809][ T253] fib6_rule_lookup+0x334/0x630 [ 802.826809][ T253] ip6_route_output_flags+0x259/0x480 [ 802.826809][ T253] inet6_rtm_getroute+0x980/0xf70 [ 802.826809][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 802.826809][ T253] netlink_rcv_skb+0x130/0x360 [ 802.826809][ T253] netlink_unicast+0x449/0x710 [ 802.826809][ T253] netlink_sendmsg+0x723/0xbe0 [ 802.826809][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 802.826809][ T253] ___sys_sendmsg+0xee/0x170 [ 802.826809][ T253] __sys_sendmsg+0xcd/0x170 [ 802.826809][ T253] do_syscall_64+0xc6/0x1e0 [ 802.826809][ T253] [ 802.829145][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 802.829145][ T253] netdev_get_by_index+0x5e/0x80 [ 802.829145][ T253] fib6_nh_init+0x3d8/0x1580 [ 802.829145][ T253] ip6_route_info_create+0xf18/0x17d0 [ 802.829145][ T253] addrconf_f6i_alloc+0x265/0x560 [ 802.829145][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 802.829145][ T253] addrconf_join_anycast+0x1c0/0x220 [ 802.829145][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 802.829145][ T253] addrconf_dad_completed+0x12b/0xe20 [ 802.829145][ T253] addrconf_dad_begin+0x310/0x670 [ 802.829145][ T253] addrconf_dad_work+0x10b/0xab0 [ 802.829145][ T253] process_one_work+0x84d/0x18a0 [ 802.829145][ T253] worker_thread+0x587/0xd30 [ 802.829145][ T253] kthread+0x28a/0x350 [ 802.829145][ T253] ret_from_fork+0x31/0x70 [ 802.829145][ T253] ret_from_fork_asm+0x1a/0x30 [ 802.829145][ T253] [ 802.831461][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 802.831461][ T253] netdev_get_by_index+0x5e/0x80 [ 802.831461][ T253] fib6_nh_init+0x3d8/0x1580 [ 802.831461][ T253] ip6_route_info_create+0xf18/0x17d0 [ 802.831461][ T253] ip6_route_add+0x1c/0x140 [ 802.831461][ T253] addrconf_prefix_route+0x2a6/0x430 [ 802.831461][ T253] inet6_addr_add+0x4f8/0xa40 [ 802.831461][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 802.831461][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 802.831461][ T253] netlink_rcv_skb+0x130/0x360 [ 802.831461][ T253] netlink_unicast+0x449/0x710 [ 802.831461][ T253] netlink_sendmsg+0x723/0xbe0 [ 802.831461][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 802.831461][ T253] ___sys_sendmsg+0xee/0x170 [ 802.831461][ T253] __sys_sendmsg+0xcd/0x170 [ 802.831461][ T253] do_syscall_64+0xc6/0x1e0 [ 802.831461][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 802.831461][ T253] [ 802.833803][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 802.833803][ T253] netdev_get_by_index+0x5e/0x80 [ 802.833803][ T253] fib6_nh_init+0x3d8/0x1580 [ 802.833803][ T253] ip6_route_info_create+0xf18/0x17d0 [ 802.833803][ T253] addrconf_f6i_alloc+0x315/0x560 [ 802.833803][ T253] ipv6_add_addr+0x411/0x2000 [ 802.833803][ T253] inet6_addr_add+0x30e/0xa40 [ 802.833803][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 802.833803][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 802.833803][ T253] netlink_rcv_skb+0x130/0x360 [ 802.833803][ T253] netlink_unicast+0x449/0x710 [ 802.833803][ T253] netlink_sendmsg+0x723/0xbe0 [ 802.833803][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 802.833803][ T253] ___sys_sendmsg+0xee/0x170 [ 802.833803][ T253] __sys_sendmsg+0xcd/0x170 [ 802.833803][ T253] do_syscall_64+0xc6/0x1e0 [ 802.833803][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 802.833803][ T253] [ 802.836255][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 802.836255][ T253] netdev_get_by_index+0x5e/0x80 [ 802.836255][ T253] fib6_nh_init+0x3d8/0x1580 [ 802.836255][ T253] ip6_route_info_create+0xf18/0x17d0 [ 802.836255][ T253] ip6_route_add+0x1c/0x140 [ 802.836255][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 802.836255][ T253] addrconf_add_dev+0xe2/0x170 [ 802.836255][ T253] inet6_addr_add+0x12f/0xa40 [ 802.836255][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 802.836255][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 802.836255][ T253] netlink_rcv_skb+0x130/0x360 [ 802.836255][ T253] netlink_unicast+0x449/0x710 [ 802.836255][ T253] netlink_sendmsg+0x723/0xbe0 [ 802.836255][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 802.836255][ T253] ___sys_sendmsg+0xee/0x170 [ 802.836255][ T253] __sys_sendmsg+0xcd/0x170 [ 802.836255][ T253] do_syscall_64+0xc6/0x1e0 [ 802.836255][ T253] [ 802.838566][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 802.838566][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 802.838566][ T253] ipv6_find_idev+0x102/0x170 [ 802.838566][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 802.838566][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 802.838566][ T253] netlink_rcv_skb+0x130/0x360 [ 802.838566][ T253] netlink_unicast+0x449/0x710 [ 802.838566][ T253] netlink_sendmsg+0x723/0xbe0 [ 802.838566][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 802.838566][ T253] ___sys_sendmsg+0xee/0x170 [ 802.838566][ T253] __sys_sendmsg+0xcd/0x170 [ 802.838566][ T253] do_syscall_64+0xc6/0x1e0 [ 802.838566][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 802.838566][ T253] [ 802.840463][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 802.840463][ T253] neigh_parms_alloc+0x1e5/0x510 [ 802.840463][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 802.840463][ T253] ipv6_find_idev+0x102/0x170 [ 802.840463][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 802.840463][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 802.840463][ T253] netlink_rcv_skb+0x130/0x360 [ 802.840463][ T253] netlink_unicast+0x449/0x710 [ 802.840463][ T253] netlink_sendmsg+0x723/0xbe0 [ 802.840463][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 802.840463][ T253] ___sys_sendmsg+0xee/0x170 [ 802.840463][ T253] __sys_sendmsg+0xcd/0x170 [ 802.840463][ T253] do_syscall_64+0xc6/0x1e0 [ 802.840463][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 802.840463][ T253] [ 813.058363][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 813.058897][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 813.058897][ T253] dst_init+0x84/0x4a0 [ 813.058897][ T253] dst_alloc+0x97/0x150 [ 813.058897][ T253] ip6_dst_alloc+0x23/0x90 [ 813.058897][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 813.058897][ T253] ip6_pol_route+0x56f/0x840 [ 813.058897][ T253] fib6_rule_lookup+0x334/0x630 [ 813.058897][ T253] ip6_route_output_flags+0x259/0x480 [ 813.058897][ T253] inet6_rtm_getroute+0x980/0xf70 [ 813.058897][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 813.058897][ T253] netlink_rcv_skb+0x130/0x360 [ 813.058897][ T253] netlink_unicast+0x449/0x710 [ 813.058897][ T253] netlink_sendmsg+0x723/0xbe0 [ 813.058897][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 813.058897][ T253] ___sys_sendmsg+0xee/0x170 [ 813.058897][ T253] __sys_sendmsg+0xcd/0x170 [ 813.058897][ T253] do_syscall_64+0xc6/0x1e0 [ 813.058897][ T253] [ 813.061116][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 813.061116][ T253] netdev_get_by_index+0x5e/0x80 [ 813.061116][ T253] fib6_nh_init+0x3d8/0x1580 [ 813.061116][ T253] ip6_route_info_create+0xf18/0x17d0 [ 813.061116][ T253] addrconf_f6i_alloc+0x265/0x560 [ 813.061116][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 813.061116][ T253] addrconf_join_anycast+0x1c0/0x220 [ 813.061116][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 813.061116][ T253] addrconf_dad_completed+0x12b/0xe20 [ 813.061116][ T253] addrconf_dad_begin+0x310/0x670 [ 813.061116][ T253] addrconf_dad_work+0x10b/0xab0 [ 813.061116][ T253] process_one_work+0x84d/0x18a0 [ 813.061116][ T253] worker_thread+0x587/0xd30 [ 813.061116][ T253] kthread+0x28a/0x350 [ 813.061116][ T253] ret_from_fork+0x31/0x70 [ 813.061116][ T253] ret_from_fork_asm+0x1a/0x30 [ 813.061116][ T253] [ 813.063269][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 813.063269][ T253] netdev_get_by_index+0x5e/0x80 [ 813.063269][ T253] fib6_nh_init+0x3d8/0x1580 [ 813.063269][ T253] ip6_route_info_create+0xf18/0x17d0 [ 813.063269][ T253] ip6_route_add+0x1c/0x140 [ 813.063269][ T253] addrconf_prefix_route+0x2a6/0x430 [ 813.063269][ T253] inet6_addr_add+0x4f8/0xa40 [ 813.063269][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 813.063269][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 813.063269][ T253] netlink_rcv_skb+0x130/0x360 [ 813.063269][ T253] netlink_unicast+0x449/0x710 [ 813.063269][ T253] netlink_sendmsg+0x723/0xbe0 [ 813.063269][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 813.063269][ T253] ___sys_sendmsg+0xee/0x170 [ 813.063269][ T253] __sys_sendmsg+0xcd/0x170 [ 813.063269][ T253] do_syscall_64+0xc6/0x1e0 [ 813.063269][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 813.063269][ T253] [ 813.065555][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 813.065555][ T253] netdev_get_by_index+0x5e/0x80 [ 813.065555][ T253] fib6_nh_init+0x3d8/0x1580 [ 813.065555][ T253] ip6_route_info_create+0xf18/0x17d0 [ 813.065555][ T253] addrconf_f6i_alloc+0x315/0x560 [ 813.065555][ T253] ipv6_add_addr+0x411/0x2000 [ 813.065555][ T253] inet6_addr_add+0x30e/0xa40 [ 813.065555][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 813.065555][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 813.065555][ T253] netlink_rcv_skb+0x130/0x360 [ 813.065555][ T253] netlink_unicast+0x449/0x710 [ 813.065555][ T253] netlink_sendmsg+0x723/0xbe0 [ 813.065555][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 813.065555][ T253] ___sys_sendmsg+0xee/0x170 [ 813.065555][ T253] __sys_sendmsg+0xcd/0x170 [ 813.065555][ T253] do_syscall_64+0xc6/0x1e0 [ 813.065555][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 813.065555][ T253] [ 813.067808][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 813.067808][ T253] netdev_get_by_index+0x5e/0x80 [ 813.067808][ T253] fib6_nh_init+0x3d8/0x1580 [ 813.067808][ T253] ip6_route_info_create+0xf18/0x17d0 [ 813.067808][ T253] ip6_route_add+0x1c/0x140 [ 813.067808][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 813.067808][ T253] addrconf_add_dev+0xe2/0x170 [ 813.067808][ T253] inet6_addr_add+0x12f/0xa40 [ 813.067808][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 813.067808][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 813.067808][ T253] netlink_rcv_skb+0x130/0x360 [ 813.067808][ T253] netlink_unicast+0x449/0x710 [ 813.067808][ T253] netlink_sendmsg+0x723/0xbe0 [ 813.067808][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 813.067808][ T253] ___sys_sendmsg+0xee/0x170 [ 813.067808][ T253] __sys_sendmsg+0xcd/0x170 [ 813.067808][ T253] do_syscall_64+0xc6/0x1e0 [ 813.067808][ T253] [ 813.070014][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 813.070014][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 813.070014][ T253] ipv6_find_idev+0x102/0x170 [ 813.070014][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 813.070014][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 813.070014][ T253] netlink_rcv_skb+0x130/0x360 [ 813.070014][ T253] netlink_unicast+0x449/0x710 [ 813.070014][ T253] netlink_sendmsg+0x723/0xbe0 [ 813.070014][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 813.070014][ T253] ___sys_sendmsg+0xee/0x170 [ 813.070014][ T253] __sys_sendmsg+0xcd/0x170 [ 813.070014][ T253] do_syscall_64+0xc6/0x1e0 [ 813.070014][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 813.070014][ T253] [ 813.071754][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 813.071754][ T253] neigh_parms_alloc+0x1e5/0x510 [ 813.071754][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 813.071754][ T253] ipv6_find_idev+0x102/0x170 [ 813.071754][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 813.071754][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 813.071754][ T253] netlink_rcv_skb+0x130/0x360 [ 813.071754][ T253] netlink_unicast+0x449/0x710 [ 813.071754][ T253] netlink_sendmsg+0x723/0xbe0 [ 813.071754][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 813.071754][ T253] ___sys_sendmsg+0xee/0x170 [ 813.071754][ T253] __sys_sendmsg+0xcd/0x170 [ 813.071754][ T253] do_syscall_64+0xc6/0x1e0 [ 813.071754][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 813.071754][ T253] [ 823.266425][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 823.266914][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 823.266914][ T253] dst_init+0x84/0x4a0 [ 823.266914][ T253] dst_alloc+0x97/0x150 [ 823.266914][ T253] ip6_dst_alloc+0x23/0x90 [ 823.266914][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 823.266914][ T253] ip6_pol_route+0x56f/0x840 [ 823.266914][ T253] fib6_rule_lookup+0x334/0x630 [ 823.266914][ T253] ip6_route_output_flags+0x259/0x480 [ 823.266914][ T253] inet6_rtm_getroute+0x980/0xf70 [ 823.266914][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 823.266914][ T253] netlink_rcv_skb+0x130/0x360 [ 823.266914][ T253] netlink_unicast+0x449/0x710 [ 823.266914][ T253] netlink_sendmsg+0x723/0xbe0 [ 823.266914][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 823.266914][ T253] ___sys_sendmsg+0xee/0x170 [ 823.266914][ T253] __sys_sendmsg+0xcd/0x170 [ 823.266914][ T253] do_syscall_64+0xc6/0x1e0 [ 823.266914][ T253] [ 823.269118][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 823.269118][ T253] netdev_get_by_index+0x5e/0x80 [ 823.269118][ T253] fib6_nh_init+0x3d8/0x1580 [ 823.269118][ T253] ip6_route_info_create+0xf18/0x17d0 [ 823.269118][ T253] addrconf_f6i_alloc+0x265/0x560 [ 823.269118][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 823.269118][ T253] addrconf_join_anycast+0x1c0/0x220 [ 823.269118][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 823.269118][ T253] addrconf_dad_completed+0x12b/0xe20 [ 823.269118][ T253] addrconf_dad_begin+0x310/0x670 [ 823.269118][ T253] addrconf_dad_work+0x10b/0xab0 [ 823.269118][ T253] process_one_work+0x84d/0x18a0 [ 823.269118][ T253] worker_thread+0x587/0xd30 [ 823.269118][ T253] kthread+0x28a/0x350 [ 823.269118][ T253] ret_from_fork+0x31/0x70 [ 823.269118][ T253] ret_from_fork_asm+0x1a/0x30 [ 823.269118][ T253] [ 823.271264][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 823.271264][ T253] netdev_get_by_index+0x5e/0x80 [ 823.271264][ T253] fib6_nh_init+0x3d8/0x1580 [ 823.271264][ T253] ip6_route_info_create+0xf18/0x17d0 [ 823.271264][ T253] ip6_route_add+0x1c/0x140 [ 823.271264][ T253] addrconf_prefix_route+0x2a6/0x430 [ 823.271264][ T253] inet6_addr_add+0x4f8/0xa40 [ 823.271264][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 823.271264][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 823.271264][ T253] netlink_rcv_skb+0x130/0x360 [ 823.271264][ T253] netlink_unicast+0x449/0x710 [ 823.271264][ T253] netlink_sendmsg+0x723/0xbe0 [ 823.271264][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 823.271264][ T253] ___sys_sendmsg+0xee/0x170 [ 823.271264][ T253] __sys_sendmsg+0xcd/0x170 [ 823.271264][ T253] do_syscall_64+0xc6/0x1e0 [ 823.271264][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 823.271264][ T253] [ 823.273509][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 823.273509][ T253] netdev_get_by_index+0x5e/0x80 [ 823.273509][ T253] fib6_nh_init+0x3d8/0x1580 [ 823.273509][ T253] ip6_route_info_create+0xf18/0x17d0 [ 823.273509][ T253] addrconf_f6i_alloc+0x315/0x560 [ 823.273509][ T253] ipv6_add_addr+0x411/0x2000 [ 823.273509][ T253] inet6_addr_add+0x30e/0xa40 [ 823.273509][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 823.273509][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 823.273509][ T253] netlink_rcv_skb+0x130/0x360 [ 823.273509][ T253] netlink_unicast+0x449/0x710 [ 823.273509][ T253] netlink_sendmsg+0x723/0xbe0 [ 823.273509][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 823.273509][ T253] ___sys_sendmsg+0xee/0x170 [ 823.273509][ T253] __sys_sendmsg+0xcd/0x170 [ 823.273509][ T253] do_syscall_64+0xc6/0x1e0 [ 823.273509][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 823.273509][ T253] [ 823.275955][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 823.275955][ T253] netdev_get_by_index+0x5e/0x80 [ 823.275955][ T253] fib6_nh_init+0x3d8/0x1580 [ 823.275955][ T253] ip6_route_info_create+0xf18/0x17d0 [ 823.275955][ T253] ip6_route_add+0x1c/0x140 [ 823.275955][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 823.275955][ T253] addrconf_add_dev+0xe2/0x170 [ 823.275955][ T253] inet6_addr_add+0x12f/0xa40 [ 823.275955][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 823.275955][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 823.275955][ T253] netlink_rcv_skb+0x130/0x360 [ 823.275955][ T253] netlink_unicast+0x449/0x710 [ 823.275955][ T253] netlink_sendmsg+0x723/0xbe0 [ 823.275955][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 823.275955][ T253] ___sys_sendmsg+0xee/0x170 [ 823.275955][ T253] __sys_sendmsg+0xcd/0x170 [ 823.275955][ T253] do_syscall_64+0xc6/0x1e0 [ 823.275955][ T253] [ 823.278546][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 823.278546][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 823.278546][ T253] ipv6_find_idev+0x102/0x170 [ 823.278546][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 823.278546][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 823.278546][ T253] netlink_rcv_skb+0x130/0x360 [ 823.278546][ T253] netlink_unicast+0x449/0x710 [ 823.278546][ T253] netlink_sendmsg+0x723/0xbe0 [ 823.278546][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 823.278546][ T253] ___sys_sendmsg+0xee/0x170 [ 823.278546][ T253] __sys_sendmsg+0xcd/0x170 [ 823.278546][ T253] do_syscall_64+0xc6/0x1e0 [ 823.278546][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 823.278546][ T253] [ 823.280278][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 823.280278][ T253] neigh_parms_alloc+0x1e5/0x510 [ 823.280278][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 823.280278][ T253] ipv6_find_idev+0x102/0x170 [ 823.280278][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 823.280278][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 823.280278][ T253] netlink_rcv_skb+0x130/0x360 [ 823.280278][ T253] netlink_unicast+0x449/0x710 [ 823.280278][ T253] netlink_sendmsg+0x723/0xbe0 [ 823.280278][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 823.280278][ T253] ___sys_sendmsg+0xee/0x170 [ 823.280278][ T253] __sys_sendmsg+0xcd/0x170 [ 823.280278][ T253] do_syscall_64+0xc6/0x1e0 [ 823.280278][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 823.280278][ T253] [ 833.290401][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 833.290948][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 833.290948][ T253] dst_init+0x84/0x4a0 [ 833.290948][ T253] dst_alloc+0x97/0x150 [ 833.290948][ T253] ip6_dst_alloc+0x23/0x90 [ 833.290948][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 833.290948][ T253] ip6_pol_route+0x56f/0x840 [ 833.290948][ T253] fib6_rule_lookup+0x334/0x630 [ 833.290948][ T253] ip6_route_output_flags+0x259/0x480 [ 833.290948][ T253] inet6_rtm_getroute+0x980/0xf70 [ 833.290948][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 833.290948][ T253] netlink_rcv_skb+0x130/0x360 [ 833.290948][ T253] netlink_unicast+0x449/0x710 [ 833.290948][ T253] netlink_sendmsg+0x723/0xbe0 [ 833.290948][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 833.290948][ T253] ___sys_sendmsg+0xee/0x170 [ 833.290948][ T253] __sys_sendmsg+0xcd/0x170 [ 833.290948][ T253] do_syscall_64+0xc6/0x1e0 [ 833.290948][ T253] [ 833.293172][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 833.293172][ T253] netdev_get_by_index+0x5e/0x80 [ 833.293172][ T253] fib6_nh_init+0x3d8/0x1580 [ 833.293172][ T253] ip6_route_info_create+0xf18/0x17d0 [ 833.293172][ T253] addrconf_f6i_alloc+0x265/0x560 [ 833.293172][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 833.293172][ T253] addrconf_join_anycast+0x1c0/0x220 [ 833.293172][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 833.293172][ T253] addrconf_dad_completed+0x12b/0xe20 [ 833.293172][ T253] addrconf_dad_begin+0x310/0x670 [ 833.293172][ T253] addrconf_dad_work+0x10b/0xab0 [ 833.293172][ T253] process_one_work+0x84d/0x18a0 [ 833.293172][ T253] worker_thread+0x587/0xd30 [ 833.293172][ T253] kthread+0x28a/0x350 [ 833.293172][ T253] ret_from_fork+0x31/0x70 [ 833.293172][ T253] ret_from_fork_asm+0x1a/0x30 [ 833.293172][ T253] [ 833.295417][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 833.295417][ T253] netdev_get_by_index+0x5e/0x80 [ 833.295417][ T253] fib6_nh_init+0x3d8/0x1580 [ 833.295417][ T253] ip6_route_info_create+0xf18/0x17d0 [ 833.295417][ T253] ip6_route_add+0x1c/0x140 [ 833.295417][ T253] addrconf_prefix_route+0x2a6/0x430 [ 833.295417][ T253] inet6_addr_add+0x4f8/0xa40 [ 833.295417][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 833.295417][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 833.295417][ T253] netlink_rcv_skb+0x130/0x360 [ 833.295417][ T253] netlink_unicast+0x449/0x710 [ 833.295417][ T253] netlink_sendmsg+0x723/0xbe0 [ 833.295417][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 833.295417][ T253] ___sys_sendmsg+0xee/0x170 [ 833.295417][ T253] __sys_sendmsg+0xcd/0x170 [ 833.295417][ T253] do_syscall_64+0xc6/0x1e0 [ 833.295417][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 833.295417][ T253] [ 833.297853][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 833.297853][ T253] netdev_get_by_index+0x5e/0x80 [ 833.297853][ T253] fib6_nh_init+0x3d8/0x1580 [ 833.297853][ T253] ip6_route_info_create+0xf18/0x17d0 [ 833.297853][ T253] addrconf_f6i_alloc+0x315/0x560 [ 833.297853][ T253] ipv6_add_addr+0x411/0x2000 [ 833.297853][ T253] inet6_addr_add+0x30e/0xa40 [ 833.297853][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 833.297853][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 833.297853][ T253] netlink_rcv_skb+0x130/0x360 [ 833.297853][ T253] netlink_unicast+0x449/0x710 [ 833.297853][ T253] netlink_sendmsg+0x723/0xbe0 [ 833.297853][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 833.297853][ T253] ___sys_sendmsg+0xee/0x170 [ 833.297853][ T253] __sys_sendmsg+0xcd/0x170 [ 833.297853][ T253] do_syscall_64+0xc6/0x1e0 [ 833.297853][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 833.297853][ T253] [ 833.300296][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 833.300296][ T253] netdev_get_by_index+0x5e/0x80 [ 833.300296][ T253] fib6_nh_init+0x3d8/0x1580 [ 833.300296][ T253] ip6_route_info_create+0xf18/0x17d0 [ 833.300296][ T253] ip6_route_add+0x1c/0x140 [ 833.300296][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 833.300296][ T253] addrconf_add_dev+0xe2/0x170 [ 833.300296][ T253] inet6_addr_add+0x12f/0xa40 [ 833.300296][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 833.300296][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 833.300296][ T253] netlink_rcv_skb+0x130/0x360 [ 833.300296][ T253] netlink_unicast+0x449/0x710 [ 833.300296][ T253] netlink_sendmsg+0x723/0xbe0 [ 833.300296][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 833.300296][ T253] ___sys_sendmsg+0xee/0x170 [ 833.300296][ T253] __sys_sendmsg+0xcd/0x170 [ 833.300296][ T253] do_syscall_64+0xc6/0x1e0 [ 833.300296][ T253] [ 833.302698][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 833.302698][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 833.302698][ T253] ipv6_find_idev+0x102/0x170 [ 833.302698][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 833.302698][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 833.302698][ T253] netlink_rcv_skb+0x130/0x360 [ 833.302698][ T253] netlink_unicast+0x449/0x710 [ 833.302698][ T253] netlink_sendmsg+0x723/0xbe0 [ 833.302698][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 833.302698][ T253] ___sys_sendmsg+0xee/0x170 [ 833.302698][ T253] __sys_sendmsg+0xcd/0x170 [ 833.302698][ T253] do_syscall_64+0xc6/0x1e0 [ 833.302698][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 833.302698][ T253] [ 833.304574][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 833.304574][ T253] neigh_parms_alloc+0x1e5/0x510 [ 833.304574][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 833.304574][ T253] ipv6_find_idev+0x102/0x170 [ 833.304574][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 833.304574][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 833.304574][ T253] netlink_rcv_skb+0x130/0x360 [ 833.304574][ T253] netlink_unicast+0x449/0x710 [ 833.304574][ T253] netlink_sendmsg+0x723/0xbe0 [ 833.304574][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 833.304574][ T253] ___sys_sendmsg+0xee/0x170 [ 833.304574][ T253] __sys_sendmsg+0xcd/0x170 [ 833.304574][ T253] do_syscall_64+0xc6/0x1e0 [ 833.304574][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 833.304574][ T253] [ 843.426254][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 843.426789][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 843.426789][ T253] dst_init+0x84/0x4a0 [ 843.426789][ T253] dst_alloc+0x97/0x150 [ 843.426789][ T253] ip6_dst_alloc+0x23/0x90 [ 843.426789][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 843.426789][ T253] ip6_pol_route+0x56f/0x840 [ 843.426789][ T253] fib6_rule_lookup+0x334/0x630 [ 843.426789][ T253] ip6_route_output_flags+0x259/0x480 [ 843.426789][ T253] inet6_rtm_getroute+0x980/0xf70 [ 843.426789][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 843.426789][ T253] netlink_rcv_skb+0x130/0x360 [ 843.426789][ T253] netlink_unicast+0x449/0x710 [ 843.426789][ T253] netlink_sendmsg+0x723/0xbe0 [ 843.426789][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 843.426789][ T253] ___sys_sendmsg+0xee/0x170 [ 843.426789][ T253] __sys_sendmsg+0xcd/0x170 [ 843.426789][ T253] do_syscall_64+0xc6/0x1e0 [ 843.426789][ T253] [ 843.429013][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 843.429013][ T253] netdev_get_by_index+0x5e/0x80 [ 843.429013][ T253] fib6_nh_init+0x3d8/0x1580 [ 843.429013][ T253] ip6_route_info_create+0xf18/0x17d0 [ 843.429013][ T253] addrconf_f6i_alloc+0x265/0x560 [ 843.429013][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 843.429013][ T253] addrconf_join_anycast+0x1c0/0x220 [ 843.429013][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 843.429013][ T253] addrconf_dad_completed+0x12b/0xe20 [ 843.429013][ T253] addrconf_dad_begin+0x310/0x670 [ 843.429013][ T253] addrconf_dad_work+0x10b/0xab0 [ 843.429013][ T253] process_one_work+0x84d/0x18a0 [ 843.429013][ T253] worker_thread+0x587/0xd30 [ 843.429013][ T253] kthread+0x28a/0x350 [ 843.429013][ T253] ret_from_fork+0x31/0x70 [ 843.429013][ T253] ret_from_fork_asm+0x1a/0x30 [ 843.429013][ T253] [ 843.431162][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 843.431162][ T253] netdev_get_by_index+0x5e/0x80 [ 843.431162][ T253] fib6_nh_init+0x3d8/0x1580 [ 843.431162][ T253] ip6_route_info_create+0xf18/0x17d0 [ 843.431162][ T253] ip6_route_add+0x1c/0x140 [ 843.431162][ T253] addrconf_prefix_route+0x2a6/0x430 [ 843.431162][ T253] inet6_addr_add+0x4f8/0xa40 [ 843.431162][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 843.431162][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 843.431162][ T253] netlink_rcv_skb+0x130/0x360 [ 843.431162][ T253] netlink_unicast+0x449/0x710 [ 843.431162][ T253] netlink_sendmsg+0x723/0xbe0 [ 843.431162][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 843.431162][ T253] ___sys_sendmsg+0xee/0x170 [ 843.431162][ T253] __sys_sendmsg+0xcd/0x170 [ 843.431162][ T253] do_syscall_64+0xc6/0x1e0 [ 843.431162][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 843.431162][ T253] [ 843.433420][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 843.433420][ T253] netdev_get_by_index+0x5e/0x80 [ 843.433420][ T253] fib6_nh_init+0x3d8/0x1580 [ 843.433420][ T253] ip6_route_info_create+0xf18/0x17d0 [ 843.433420][ T253] addrconf_f6i_alloc+0x315/0x560 [ 843.433420][ T253] ipv6_add_addr+0x411/0x2000 [ 843.433420][ T253] inet6_addr_add+0x30e/0xa40 [ 843.433420][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 843.433420][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 843.433420][ T253] netlink_rcv_skb+0x130/0x360 [ 843.433420][ T253] netlink_unicast+0x449/0x710 [ 843.433420][ T253] netlink_sendmsg+0x723/0xbe0 [ 843.433420][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 843.433420][ T253] ___sys_sendmsg+0xee/0x170 [ 843.433420][ T253] __sys_sendmsg+0xcd/0x170 [ 843.433420][ T253] do_syscall_64+0xc6/0x1e0 [ 843.433420][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 843.433420][ T253] [ 843.435670][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 843.435670][ T253] netdev_get_by_index+0x5e/0x80 [ 843.435670][ T253] fib6_nh_init+0x3d8/0x1580 [ 843.435670][ T253] ip6_route_info_create+0xf18/0x17d0 [ 843.435670][ T253] ip6_route_add+0x1c/0x140 [ 843.435670][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 843.435670][ T253] addrconf_add_dev+0xe2/0x170 [ 843.435670][ T253] inet6_addr_add+0x12f/0xa40 [ 843.435670][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 843.435670][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 843.435670][ T253] netlink_rcv_skb+0x130/0x360 [ 843.435670][ T253] netlink_unicast+0x449/0x710 [ 843.435670][ T253] netlink_sendmsg+0x723/0xbe0 [ 843.435670][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 843.435670][ T253] ___sys_sendmsg+0xee/0x170 [ 843.435670][ T253] __sys_sendmsg+0xcd/0x170 [ 843.435670][ T253] do_syscall_64+0xc6/0x1e0 [ 843.435670][ T253] [ 843.437869][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 843.437869][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 843.437869][ T253] ipv6_find_idev+0x102/0x170 [ 843.437869][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 843.437869][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 843.437869][ T253] netlink_rcv_skb+0x130/0x360 [ 843.437869][ T253] netlink_unicast+0x449/0x710 [ 843.437869][ T253] netlink_sendmsg+0x723/0xbe0 [ 843.437869][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 843.437869][ T253] ___sys_sendmsg+0xee/0x170 [ 843.437869][ T253] __sys_sendmsg+0xcd/0x170 [ 843.437869][ T253] do_syscall_64+0xc6/0x1e0 [ 843.437869][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 843.437869][ T253] [ 843.439595][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 843.439595][ T253] neigh_parms_alloc+0x1e5/0x510 [ 843.439595][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 843.439595][ T253] ipv6_find_idev+0x102/0x170 [ 843.439595][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 843.439595][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 843.439595][ T253] netlink_rcv_skb+0x130/0x360 [ 843.439595][ T253] netlink_unicast+0x449/0x710 [ 843.439595][ T253] netlink_sendmsg+0x723/0xbe0 [ 843.439595][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 843.439595][ T253] ___sys_sendmsg+0xee/0x170 [ 843.439595][ T253] __sys_sendmsg+0xcd/0x170 [ 843.439595][ T253] do_syscall_64+0xc6/0x1e0 [ 843.439595][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 843.439595][ T253] [ 853.682308][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 853.682862][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 853.682862][ T253] dst_init+0x84/0x4a0 [ 853.682862][ T253] dst_alloc+0x97/0x150 [ 853.682862][ T253] ip6_dst_alloc+0x23/0x90 [ 853.682862][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 853.682862][ T253] ip6_pol_route+0x56f/0x840 [ 853.682862][ T253] fib6_rule_lookup+0x334/0x630 [ 853.682862][ T253] ip6_route_output_flags+0x259/0x480 [ 853.682862][ T253] inet6_rtm_getroute+0x980/0xf70 [ 853.682862][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 853.682862][ T253] netlink_rcv_skb+0x130/0x360 [ 853.682862][ T253] netlink_unicast+0x449/0x710 [ 853.682862][ T253] netlink_sendmsg+0x723/0xbe0 [ 853.682862][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 853.682862][ T253] ___sys_sendmsg+0xee/0x170 [ 853.682862][ T253] __sys_sendmsg+0xcd/0x170 [ 853.682862][ T253] do_syscall_64+0xc6/0x1e0 [ 853.682862][ T253] [ 853.685080][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 853.685080][ T253] netdev_get_by_index+0x5e/0x80 [ 853.685080][ T253] fib6_nh_init+0x3d8/0x1580 [ 853.685080][ T253] ip6_route_info_create+0xf18/0x17d0 [ 853.685080][ T253] addrconf_f6i_alloc+0x265/0x560 [ 853.685080][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 853.685080][ T253] addrconf_join_anycast+0x1c0/0x220 [ 853.685080][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 853.685080][ T253] addrconf_dad_completed+0x12b/0xe20 [ 853.685080][ T253] addrconf_dad_begin+0x310/0x670 [ 853.685080][ T253] addrconf_dad_work+0x10b/0xab0 [ 853.685080][ T253] process_one_work+0x84d/0x18a0 [ 853.685080][ T253] worker_thread+0x587/0xd30 [ 853.685080][ T253] kthread+0x28a/0x350 [ 853.685080][ T253] ret_from_fork+0x31/0x70 [ 853.685080][ T253] ret_from_fork_asm+0x1a/0x30 [ 853.685080][ T253] [ 853.687241][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 853.687241][ T253] netdev_get_by_index+0x5e/0x80 [ 853.687241][ T253] fib6_nh_init+0x3d8/0x1580 [ 853.687241][ T253] ip6_route_info_create+0xf18/0x17d0 [ 853.687241][ T253] ip6_route_add+0x1c/0x140 [ 853.687241][ T253] addrconf_prefix_route+0x2a6/0x430 [ 853.687241][ T253] inet6_addr_add+0x4f8/0xa40 [ 853.687241][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 853.687241][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 853.687241][ T253] netlink_rcv_skb+0x130/0x360 [ 853.687241][ T253] netlink_unicast+0x449/0x710 [ 853.687241][ T253] netlink_sendmsg+0x723/0xbe0 [ 853.687241][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 853.687241][ T253] ___sys_sendmsg+0xee/0x170 [ 853.687241][ T253] __sys_sendmsg+0xcd/0x170 [ 853.687241][ T253] do_syscall_64+0xc6/0x1e0 [ 853.687241][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 853.687241][ T253] [ 853.689491][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 853.689491][ T253] netdev_get_by_index+0x5e/0x80 [ 853.689491][ T253] fib6_nh_init+0x3d8/0x1580 [ 853.689491][ T253] ip6_route_info_create+0xf18/0x17d0 [ 853.689491][ T253] addrconf_f6i_alloc+0x315/0x560 [ 853.689491][ T253] ipv6_add_addr+0x411/0x2000 [ 853.689491][ T253] inet6_addr_add+0x30e/0xa40 [ 853.689491][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 853.689491][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 853.689491][ T253] netlink_rcv_skb+0x130/0x360 [ 853.689491][ T253] netlink_unicast+0x449/0x710 [ 853.689491][ T253] netlink_sendmsg+0x723/0xbe0 [ 853.689491][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 853.689491][ T253] ___sys_sendmsg+0xee/0x170 [ 853.689491][ T253] __sys_sendmsg+0xcd/0x170 [ 853.689491][ T253] do_syscall_64+0xc6/0x1e0 [ 853.689491][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 853.689491][ T253] [ 853.691748][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 853.691748][ T253] netdev_get_by_index+0x5e/0x80 [ 853.691748][ T253] fib6_nh_init+0x3d8/0x1580 [ 853.691748][ T253] ip6_route_info_create+0xf18/0x17d0 [ 853.691748][ T253] ip6_route_add+0x1c/0x140 [ 853.691748][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 853.691748][ T253] addrconf_add_dev+0xe2/0x170 [ 853.691748][ T253] inet6_addr_add+0x12f/0xa40 [ 853.691748][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 853.691748][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 853.691748][ T253] netlink_rcv_skb+0x130/0x360 [ 853.691748][ T253] netlink_unicast+0x449/0x710 [ 853.691748][ T253] netlink_sendmsg+0x723/0xbe0 [ 853.691748][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 853.691748][ T253] ___sys_sendmsg+0xee/0x170 [ 853.691748][ T253] __sys_sendmsg+0xcd/0x170 [ 853.691748][ T253] do_syscall_64+0xc6/0x1e0 [ 853.691748][ T253] [ 853.693966][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 853.693966][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 853.693966][ T253] ipv6_find_idev+0x102/0x170 [ 853.693966][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 853.693966][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 853.693966][ T253] netlink_rcv_skb+0x130/0x360 [ 853.693966][ T253] netlink_unicast+0x449/0x710 [ 853.693966][ T253] netlink_sendmsg+0x723/0xbe0 [ 853.693966][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 853.693966][ T253] ___sys_sendmsg+0xee/0x170 [ 853.693966][ T253] __sys_sendmsg+0xcd/0x170 [ 853.693966][ T253] do_syscall_64+0xc6/0x1e0 [ 853.693966][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 853.693966][ T253] [ 853.695722][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 853.695722][ T253] neigh_parms_alloc+0x1e5/0x510 [ 853.695722][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 853.695722][ T253] ipv6_find_idev+0x102/0x170 [ 853.695722][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 853.695722][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 853.695722][ T253] netlink_rcv_skb+0x130/0x360 [ 853.695722][ T253] netlink_unicast+0x449/0x710 [ 853.695722][ T253] netlink_sendmsg+0x723/0xbe0 [ 853.695722][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 853.695722][ T253] ___sys_sendmsg+0xee/0x170 [ 853.695722][ T253] __sys_sendmsg+0xcd/0x170 [ 853.695722][ T253] do_syscall_64+0xc6/0x1e0 [ 853.695722][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 853.695722][ T253] [ 863.786389][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 863.786937][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 863.786937][ T253] dst_init+0x84/0x4a0 [ 863.786937][ T253] dst_alloc+0x97/0x150 [ 863.786937][ T253] ip6_dst_alloc+0x23/0x90 [ 863.786937][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 863.786937][ T253] ip6_pol_route+0x56f/0x840 [ 863.786937][ T253] fib6_rule_lookup+0x334/0x630 [ 863.786937][ T253] ip6_route_output_flags+0x259/0x480 [ 863.786937][ T253] inet6_rtm_getroute+0x980/0xf70 [ 863.786937][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 863.786937][ T253] netlink_rcv_skb+0x130/0x360 [ 863.786937][ T253] netlink_unicast+0x449/0x710 [ 863.786937][ T253] netlink_sendmsg+0x723/0xbe0 [ 863.786937][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 863.786937][ T253] ___sys_sendmsg+0xee/0x170 [ 863.786937][ T253] __sys_sendmsg+0xcd/0x170 [ 863.786937][ T253] do_syscall_64+0xc6/0x1e0 [ 863.786937][ T253] [ 863.789255][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 863.789255][ T253] netdev_get_by_index+0x5e/0x80 [ 863.789255][ T253] fib6_nh_init+0x3d8/0x1580 [ 863.789255][ T253] ip6_route_info_create+0xf18/0x17d0 [ 863.789255][ T253] addrconf_f6i_alloc+0x265/0x560 [ 863.789255][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 863.789255][ T253] addrconf_join_anycast+0x1c0/0x220 [ 863.789255][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 863.789255][ T253] addrconf_dad_completed+0x12b/0xe20 [ 863.789255][ T253] addrconf_dad_begin+0x310/0x670 [ 863.789255][ T253] addrconf_dad_work+0x10b/0xab0 [ 863.789255][ T253] process_one_work+0x84d/0x18a0 [ 863.789255][ T253] worker_thread+0x587/0xd30 [ 863.789255][ T253] kthread+0x28a/0x350 [ 863.789255][ T253] ret_from_fork+0x31/0x70 [ 863.789255][ T253] ret_from_fork_asm+0x1a/0x30 [ 863.789255][ T253] [ 863.791419][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 863.791419][ T253] netdev_get_by_index+0x5e/0x80 [ 863.791419][ T253] fib6_nh_init+0x3d8/0x1580 [ 863.791419][ T253] ip6_route_info_create+0xf18/0x17d0 [ 863.791419][ T253] ip6_route_add+0x1c/0x140 [ 863.791419][ T253] addrconf_prefix_route+0x2a6/0x430 [ 863.791419][ T253] inet6_addr_add+0x4f8/0xa40 [ 863.791419][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 863.791419][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 863.791419][ T253] netlink_rcv_skb+0x130/0x360 [ 863.791419][ T253] netlink_unicast+0x449/0x710 [ 863.791419][ T253] netlink_sendmsg+0x723/0xbe0 [ 863.791419][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 863.791419][ T253] ___sys_sendmsg+0xee/0x170 [ 863.791419][ T253] __sys_sendmsg+0xcd/0x170 [ 863.791419][ T253] do_syscall_64+0xc6/0x1e0 [ 863.791419][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 863.791419][ T253] [ 863.793671][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 863.793671][ T253] netdev_get_by_index+0x5e/0x80 [ 863.793671][ T253] fib6_nh_init+0x3d8/0x1580 [ 863.793671][ T253] ip6_route_info_create+0xf18/0x17d0 [ 863.793671][ T253] addrconf_f6i_alloc+0x315/0x560 [ 863.793671][ T253] ipv6_add_addr+0x411/0x2000 [ 863.793671][ T253] inet6_addr_add+0x30e/0xa40 [ 863.793671][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 863.793671][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 863.793671][ T253] netlink_rcv_skb+0x130/0x360 [ 863.793671][ T253] netlink_unicast+0x449/0x710 [ 863.793671][ T253] netlink_sendmsg+0x723/0xbe0 [ 863.793671][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 863.793671][ T253] ___sys_sendmsg+0xee/0x170 [ 863.793671][ T253] __sys_sendmsg+0xcd/0x170 [ 863.793671][ T253] do_syscall_64+0xc6/0x1e0 [ 863.793671][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 863.793671][ T253] [ 863.795955][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 863.795955][ T253] netdev_get_by_index+0x5e/0x80 [ 863.795955][ T253] fib6_nh_init+0x3d8/0x1580 [ 863.795955][ T253] ip6_route_info_create+0xf18/0x17d0 [ 863.795955][ T253] ip6_route_add+0x1c/0x140 [ 863.795955][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 863.795955][ T253] addrconf_add_dev+0xe2/0x170 [ 863.795955][ T253] inet6_addr_add+0x12f/0xa40 [ 863.795955][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 863.795955][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 863.795955][ T253] netlink_rcv_skb+0x130/0x360 [ 863.795955][ T253] netlink_unicast+0x449/0x710 [ 863.795955][ T253] netlink_sendmsg+0x723/0xbe0 [ 863.795955][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 863.795955][ T253] ___sys_sendmsg+0xee/0x170 [ 863.795955][ T253] __sys_sendmsg+0xcd/0x170 [ 863.795955][ T253] do_syscall_64+0xc6/0x1e0 [ 863.795955][ T253] [ 863.798174][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 863.798174][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 863.798174][ T253] ipv6_find_idev+0x102/0x170 [ 863.798174][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 863.798174][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 863.798174][ T253] netlink_rcv_skb+0x130/0x360 [ 863.798174][ T253] netlink_unicast+0x449/0x710 [ 863.798174][ T253] netlink_sendmsg+0x723/0xbe0 [ 863.798174][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 863.798174][ T253] ___sys_sendmsg+0xee/0x170 [ 863.798174][ T253] __sys_sendmsg+0xcd/0x170 [ 863.798174][ T253] do_syscall_64+0xc6/0x1e0 [ 863.798174][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 863.798174][ T253] [ 863.799912][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 863.799912][ T253] neigh_parms_alloc+0x1e5/0x510 [ 863.799912][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 863.799912][ T253] ipv6_find_idev+0x102/0x170 [ 863.799912][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 863.799912][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 863.799912][ T253] netlink_rcv_skb+0x130/0x360 [ 863.799912][ T253] netlink_unicast+0x449/0x710 [ 863.799912][ T253] netlink_sendmsg+0x723/0xbe0 [ 863.799912][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 863.799912][ T253] ___sys_sendmsg+0xee/0x170 [ 863.799912][ T253] __sys_sendmsg+0xcd/0x170 [ 863.799912][ T253] do_syscall_64+0xc6/0x1e0 [ 863.799912][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 863.799912][ T253] [ 873.938354][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 873.938883][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 873.938883][ T253] dst_init+0x84/0x4a0 [ 873.938883][ T253] dst_alloc+0x97/0x150 [ 873.938883][ T253] ip6_dst_alloc+0x23/0x90 [ 873.938883][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 873.938883][ T253] ip6_pol_route+0x56f/0x840 [ 873.938883][ T253] fib6_rule_lookup+0x334/0x630 [ 873.938883][ T253] ip6_route_output_flags+0x259/0x480 [ 873.938883][ T253] inet6_rtm_getroute+0x980/0xf70 [ 873.938883][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 873.938883][ T253] netlink_rcv_skb+0x130/0x360 [ 873.938883][ T253] netlink_unicast+0x449/0x710 [ 873.938883][ T253] netlink_sendmsg+0x723/0xbe0 [ 873.938883][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 873.938883][ T253] ___sys_sendmsg+0xee/0x170 [ 873.938883][ T253] __sys_sendmsg+0xcd/0x170 [ 873.938883][ T253] do_syscall_64+0xc6/0x1e0 [ 873.938883][ T253] [ 873.941212][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 873.941212][ T253] netdev_get_by_index+0x5e/0x80 [ 873.941212][ T253] fib6_nh_init+0x3d8/0x1580 [ 873.941212][ T253] ip6_route_info_create+0xf18/0x17d0 [ 873.941212][ T253] addrconf_f6i_alloc+0x265/0x560 [ 873.941212][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 873.941212][ T253] addrconf_join_anycast+0x1c0/0x220 [ 873.941212][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 873.941212][ T253] addrconf_dad_completed+0x12b/0xe20 [ 873.941212][ T253] addrconf_dad_begin+0x310/0x670 [ 873.941212][ T253] addrconf_dad_work+0x10b/0xab0 [ 873.941212][ T253] process_one_work+0x84d/0x18a0 [ 873.941212][ T253] worker_thread+0x587/0xd30 [ 873.941212][ T253] kthread+0x28a/0x350 [ 873.941212][ T253] ret_from_fork+0x31/0x70 [ 873.941212][ T253] ret_from_fork_asm+0x1a/0x30 [ 873.941212][ T253] [ 873.943371][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 873.943371][ T253] netdev_get_by_index+0x5e/0x80 [ 873.943371][ T253] fib6_nh_init+0x3d8/0x1580 [ 873.943371][ T253] ip6_route_info_create+0xf18/0x17d0 [ 873.943371][ T253] ip6_route_add+0x1c/0x140 [ 873.943371][ T253] addrconf_prefix_route+0x2a6/0x430 [ 873.943371][ T253] inet6_addr_add+0x4f8/0xa40 [ 873.943371][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 873.943371][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 873.943371][ T253] netlink_rcv_skb+0x130/0x360 [ 873.943371][ T253] netlink_unicast+0x449/0x710 [ 873.943371][ T253] netlink_sendmsg+0x723/0xbe0 [ 873.943371][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 873.943371][ T253] ___sys_sendmsg+0xee/0x170 [ 873.943371][ T253] __sys_sendmsg+0xcd/0x170 [ 873.943371][ T253] do_syscall_64+0xc6/0x1e0 [ 873.943371][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 873.943371][ T253] [ 873.945635][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 873.945635][ T253] netdev_get_by_index+0x5e/0x80 [ 873.945635][ T253] fib6_nh_init+0x3d8/0x1580 [ 873.945635][ T253] ip6_route_info_create+0xf18/0x17d0 [ 873.945635][ T253] addrconf_f6i_alloc+0x315/0x560 [ 873.945635][ T253] ipv6_add_addr+0x411/0x2000 [ 873.945635][ T253] inet6_addr_add+0x30e/0xa40 [ 873.945635][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 873.945635][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 873.945635][ T253] netlink_rcv_skb+0x130/0x360 [ 873.945635][ T253] netlink_unicast+0x449/0x710 [ 873.945635][ T253] netlink_sendmsg+0x723/0xbe0 [ 873.945635][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 873.945635][ T253] ___sys_sendmsg+0xee/0x170 [ 873.945635][ T253] __sys_sendmsg+0xcd/0x170 [ 873.945635][ T253] do_syscall_64+0xc6/0x1e0 [ 873.945635][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 873.945635][ T253] [ 873.947881][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 873.947881][ T253] netdev_get_by_index+0x5e/0x80 [ 873.947881][ T253] fib6_nh_init+0x3d8/0x1580 [ 873.947881][ T253] ip6_route_info_create+0xf18/0x17d0 [ 873.947881][ T253] ip6_route_add+0x1c/0x140 [ 873.947881][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 873.947881][ T253] addrconf_add_dev+0xe2/0x170 [ 873.947881][ T253] inet6_addr_add+0x12f/0xa40 [ 873.947881][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 873.947881][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 873.947881][ T253] netlink_rcv_skb+0x130/0x360 [ 873.947881][ T253] netlink_unicast+0x449/0x710 [ 873.947881][ T253] netlink_sendmsg+0x723/0xbe0 [ 873.947881][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 873.947881][ T253] ___sys_sendmsg+0xee/0x170 [ 873.947881][ T253] __sys_sendmsg+0xcd/0x170 [ 873.947881][ T253] do_syscall_64+0xc6/0x1e0 [ 873.947881][ T253] [ 873.950088][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 873.950088][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 873.950088][ T253] ipv6_find_idev+0x102/0x170 [ 873.950088][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 873.950088][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 873.950088][ T253] netlink_rcv_skb+0x130/0x360 [ 873.950088][ T253] netlink_unicast+0x449/0x710 [ 873.950088][ T253] netlink_sendmsg+0x723/0xbe0 [ 873.950088][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 873.950088][ T253] ___sys_sendmsg+0xee/0x170 [ 873.950088][ T253] __sys_sendmsg+0xcd/0x170 [ 873.950088][ T253] do_syscall_64+0xc6/0x1e0 [ 873.950088][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 873.950088][ T253] [ 873.951819][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 873.951819][ T253] neigh_parms_alloc+0x1e5/0x510 [ 873.951819][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 873.951819][ T253] ipv6_find_idev+0x102/0x170 [ 873.951819][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 873.951819][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 873.951819][ T253] netlink_rcv_skb+0x130/0x360 [ 873.951819][ T253] netlink_unicast+0x449/0x710 [ 873.951819][ T253] netlink_sendmsg+0x723/0xbe0 [ 873.951819][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 873.951819][ T253] ___sys_sendmsg+0xee/0x170 [ 873.951819][ T253] __sys_sendmsg+0xcd/0x170 [ 873.951819][ T253] do_syscall_64+0xc6/0x1e0 [ 873.951819][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 873.951819][ T253] [ 884.194353][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 884.194907][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 884.194907][ T253] dst_init+0x84/0x4a0 [ 884.194907][ T253] dst_alloc+0x97/0x150 [ 884.194907][ T253] ip6_dst_alloc+0x23/0x90 [ 884.194907][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 884.194907][ T253] ip6_pol_route+0x56f/0x840 [ 884.194907][ T253] fib6_rule_lookup+0x334/0x630 [ 884.194907][ T253] ip6_route_output_flags+0x259/0x480 [ 884.194907][ T253] inet6_rtm_getroute+0x980/0xf70 [ 884.194907][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 884.194907][ T253] netlink_rcv_skb+0x130/0x360 [ 884.194907][ T253] netlink_unicast+0x449/0x710 [ 884.194907][ T253] netlink_sendmsg+0x723/0xbe0 [ 884.194907][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 884.194907][ T253] ___sys_sendmsg+0xee/0x170 [ 884.194907][ T253] __sys_sendmsg+0xcd/0x170 [ 884.194907][ T253] do_syscall_64+0xc6/0x1e0 [ 884.194907][ T253] [ 884.197163][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 884.197163][ T253] netdev_get_by_index+0x5e/0x80 [ 884.197163][ T253] fib6_nh_init+0x3d8/0x1580 [ 884.197163][ T253] ip6_route_info_create+0xf18/0x17d0 [ 884.197163][ T253] addrconf_f6i_alloc+0x265/0x560 [ 884.197163][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 884.197163][ T253] addrconf_join_anycast+0x1c0/0x220 [ 884.197163][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 884.197163][ T253] addrconf_dad_completed+0x12b/0xe20 [ 884.197163][ T253] addrconf_dad_begin+0x310/0x670 [ 884.197163][ T253] addrconf_dad_work+0x10b/0xab0 [ 884.197163][ T253] process_one_work+0x84d/0x18a0 [ 884.197163][ T253] worker_thread+0x587/0xd30 [ 884.197163][ T253] kthread+0x28a/0x350 [ 884.197163][ T253] ret_from_fork+0x31/0x70 [ 884.197163][ T253] ret_from_fork_asm+0x1a/0x30 [ 884.197163][ T253] [ 884.199310][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 884.199310][ T253] netdev_get_by_index+0x5e/0x80 [ 884.199310][ T253] fib6_nh_init+0x3d8/0x1580 [ 884.199310][ T253] ip6_route_info_create+0xf18/0x17d0 [ 884.199310][ T253] ip6_route_add+0x1c/0x140 [ 884.199310][ T253] addrconf_prefix_route+0x2a6/0x430 [ 884.199310][ T253] inet6_addr_add+0x4f8/0xa40 [ 884.199310][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 884.199310][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 884.199310][ T253] netlink_rcv_skb+0x130/0x360 [ 884.199310][ T253] netlink_unicast+0x449/0x710 [ 884.199310][ T253] netlink_sendmsg+0x723/0xbe0 [ 884.199310][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 884.199310][ T253] ___sys_sendmsg+0xee/0x170 [ 884.199310][ T253] __sys_sendmsg+0xcd/0x170 [ 884.199310][ T253] do_syscall_64+0xc6/0x1e0 [ 884.199310][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 884.199310][ T253] [ 884.201551][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 884.201551][ T253] netdev_get_by_index+0x5e/0x80 [ 884.201551][ T253] fib6_nh_init+0x3d8/0x1580 [ 884.201551][ T253] ip6_route_info_create+0xf18/0x17d0 [ 884.201551][ T253] addrconf_f6i_alloc+0x315/0x560 [ 884.201551][ T253] ipv6_add_addr+0x411/0x2000 [ 884.201551][ T253] inet6_addr_add+0x30e/0xa40 [ 884.201551][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 884.201551][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 884.201551][ T253] netlink_rcv_skb+0x130/0x360 [ 884.201551][ T253] netlink_unicast+0x449/0x710 [ 884.201551][ T253] netlink_sendmsg+0x723/0xbe0 [ 884.201551][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 884.201551][ T253] ___sys_sendmsg+0xee/0x170 [ 884.201551][ T253] __sys_sendmsg+0xcd/0x170 [ 884.201551][ T253] do_syscall_64+0xc6/0x1e0 [ 884.201551][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 884.201551][ T253] [ 884.203807][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 884.203807][ T253] netdev_get_by_index+0x5e/0x80 [ 884.203807][ T253] fib6_nh_init+0x3d8/0x1580 [ 884.203807][ T253] ip6_route_info_create+0xf18/0x17d0 [ 884.203807][ T253] ip6_route_add+0x1c/0x140 [ 884.203807][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 884.203807][ T253] addrconf_add_dev+0xe2/0x170 [ 884.203807][ T253] inet6_addr_add+0x12f/0xa40 [ 884.203807][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 884.203807][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 884.203807][ T253] netlink_rcv_skb+0x130/0x360 [ 884.203807][ T253] netlink_unicast+0x449/0x710 [ 884.203807][ T253] netlink_sendmsg+0x723/0xbe0 [ 884.203807][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 884.203807][ T253] ___sys_sendmsg+0xee/0x170 [ 884.203807][ T253] __sys_sendmsg+0xcd/0x170 [ 884.203807][ T253] do_syscall_64+0xc6/0x1e0 [ 884.203807][ T253] [ 884.206025][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 884.206025][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 884.206025][ T253] ipv6_find_idev+0x102/0x170 [ 884.206025][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 884.206025][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 884.206025][ T253] netlink_rcv_skb+0x130/0x360 [ 884.206025][ T253] netlink_unicast+0x449/0x710 [ 884.206025][ T253] netlink_sendmsg+0x723/0xbe0 [ 884.206025][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 884.206025][ T253] ___sys_sendmsg+0xee/0x170 [ 884.206025][ T253] __sys_sendmsg+0xcd/0x170 [ 884.206025][ T253] do_syscall_64+0xc6/0x1e0 [ 884.206025][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 884.206025][ T253] [ 884.207751][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 884.207751][ T253] neigh_parms_alloc+0x1e5/0x510 [ 884.207751][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 884.207751][ T253] ipv6_find_idev+0x102/0x170 [ 884.207751][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 884.207751][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 884.207751][ T253] netlink_rcv_skb+0x130/0x360 [ 884.207751][ T253] netlink_unicast+0x449/0x710 [ 884.207751][ T253] netlink_sendmsg+0x723/0xbe0 [ 884.207751][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 884.207751][ T253] ___sys_sendmsg+0xee/0x170 [ 884.207751][ T253] __sys_sendmsg+0xcd/0x170 [ 884.207751][ T253] do_syscall_64+0xc6/0x1e0 [ 884.207751][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 884.207751][ T253] [ 894.450333][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 894.450998][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 894.450998][ T253] dst_init+0x84/0x4a0 [ 894.450998][ T253] dst_alloc+0x97/0x150 [ 894.450998][ T253] ip6_dst_alloc+0x23/0x90 [ 894.450998][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 894.450998][ T253] ip6_pol_route+0x56f/0x840 [ 894.450998][ T253] fib6_rule_lookup+0x334/0x630 [ 894.450998][ T253] ip6_route_output_flags+0x259/0x480 [ 894.450998][ T253] inet6_rtm_getroute+0x980/0xf70 [ 894.450998][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 894.450998][ T253] netlink_rcv_skb+0x130/0x360 [ 894.450998][ T253] netlink_unicast+0x449/0x710 [ 894.450998][ T253] netlink_sendmsg+0x723/0xbe0 [ 894.450998][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 894.450998][ T253] ___sys_sendmsg+0xee/0x170 [ 894.450998][ T253] __sys_sendmsg+0xcd/0x170 [ 894.450998][ T253] do_syscall_64+0xc6/0x1e0 [ 894.450998][ T253] [ 894.454520][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 894.454520][ T253] netdev_get_by_index+0x5e/0x80 [ 894.454520][ T253] fib6_nh_init+0x3d8/0x1580 [ 894.454520][ T253] ip6_route_info_create+0xf18/0x17d0 [ 894.454520][ T253] addrconf_f6i_alloc+0x265/0x560 [ 894.454520][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 894.454520][ T253] addrconf_join_anycast+0x1c0/0x220 [ 894.454520][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 894.454520][ T253] addrconf_dad_completed+0x12b/0xe20 [ 894.454520][ T253] addrconf_dad_begin+0x310/0x670 [ 894.454520][ T253] addrconf_dad_work+0x10b/0xab0 [ 894.454520][ T253] process_one_work+0x84d/0x18a0 [ 894.454520][ T253] worker_thread+0x587/0xd30 [ 894.454520][ T253] kthread+0x28a/0x350 [ 894.454520][ T253] ret_from_fork+0x31/0x70 [ 894.454520][ T253] ret_from_fork_asm+0x1a/0x30 [ 894.454520][ T253] [ 894.458001][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 894.458001][ T253] netdev_get_by_index+0x5e/0x80 [ 894.458001][ T253] fib6_nh_init+0x3d8/0x1580 [ 894.458001][ T253] ip6_route_info_create+0xf18/0x17d0 [ 894.458001][ T253] ip6_route_add+0x1c/0x140 [ 894.458001][ T253] addrconf_prefix_route+0x2a6/0x430 [ 894.458001][ T253] inet6_addr_add+0x4f8/0xa40 [ 894.458001][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 894.458001][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 894.458001][ T253] netlink_rcv_skb+0x130/0x360 [ 894.458001][ T253] netlink_unicast+0x449/0x710 [ 894.458001][ T253] netlink_sendmsg+0x723/0xbe0 [ 894.458001][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 894.458001][ T253] ___sys_sendmsg+0xee/0x170 [ 894.458001][ T253] __sys_sendmsg+0xcd/0x170 [ 894.458001][ T253] do_syscall_64+0xc6/0x1e0 [ 894.458001][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 894.458001][ T253] [ 894.461414][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 894.461414][ T253] netdev_get_by_index+0x5e/0x80 [ 894.461414][ T253] fib6_nh_init+0x3d8/0x1580 [ 894.461414][ T253] ip6_route_info_create+0xf18/0x17d0 [ 894.461414][ T253] addrconf_f6i_alloc+0x315/0x560 [ 894.461414][ T253] ipv6_add_addr+0x411/0x2000 [ 894.461414][ T253] inet6_addr_add+0x30e/0xa40 [ 894.461414][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 894.461414][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 894.461414][ T253] netlink_rcv_skb+0x130/0x360 [ 894.461414][ T253] netlink_unicast+0x449/0x710 [ 894.461414][ T253] netlink_sendmsg+0x723/0xbe0 [ 894.461414][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 894.461414][ T253] ___sys_sendmsg+0xee/0x170 [ 894.461414][ T253] __sys_sendmsg+0xcd/0x170 [ 894.461414][ T253] do_syscall_64+0xc6/0x1e0 [ 894.461414][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 894.461414][ T253] [ 894.464797][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 894.464797][ T253] netdev_get_by_index+0x5e/0x80 [ 894.464797][ T253] fib6_nh_init+0x3d8/0x1580 [ 894.464797][ T253] ip6_route_info_create+0xf18/0x17d0 [ 894.464797][ T253] ip6_route_add+0x1c/0x140 [ 894.464797][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 894.464797][ T253] addrconf_add_dev+0xe2/0x170 [ 894.464797][ T253] inet6_addr_add+0x12f/0xa40 [ 894.464797][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 894.464797][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 894.464797][ T253] netlink_rcv_skb+0x130/0x360 [ 894.464797][ T253] netlink_unicast+0x449/0x710 [ 894.464797][ T253] netlink_sendmsg+0x723/0xbe0 [ 894.464797][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 894.464797][ T253] ___sys_sendmsg+0xee/0x170 [ 894.464797][ T253] __sys_sendmsg+0xcd/0x170 [ 894.464797][ T253] do_syscall_64+0xc6/0x1e0 [ 894.464797][ T253] [ 894.468276][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 894.468276][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 894.468276][ T253] ipv6_find_idev+0x102/0x170 [ 894.468276][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 894.468276][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 894.468276][ T253] netlink_rcv_skb+0x130/0x360 [ 894.468276][ T253] netlink_unicast+0x449/0x710 [ 894.468276][ T253] netlink_sendmsg+0x723/0xbe0 [ 894.468276][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 894.468276][ T253] ___sys_sendmsg+0xee/0x170 [ 894.468276][ T253] __sys_sendmsg+0xcd/0x170 [ 894.468276][ T253] do_syscall_64+0xc6/0x1e0 [ 894.468276][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 894.468276][ T253] [ 894.470886][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 894.470886][ T253] neigh_parms_alloc+0x1e5/0x510 [ 894.470886][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 894.470886][ T253] ipv6_find_idev+0x102/0x170 [ 894.470886][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 894.470886][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 894.470886][ T253] netlink_rcv_skb+0x130/0x360 [ 894.470886][ T253] netlink_unicast+0x449/0x710 [ 894.470886][ T253] netlink_sendmsg+0x723/0xbe0 [ 894.470886][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 894.470886][ T253] ___sys_sendmsg+0xee/0x170 [ 894.470886][ T253] __sys_sendmsg+0xcd/0x170 [ 894.470886][ T253] do_syscall_64+0xc6/0x1e0 [ 894.470886][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 894.470886][ T253] [ 904.690386][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 904.690957][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 904.690957][ T253] dst_init+0x84/0x4a0 [ 904.690957][ T253] dst_alloc+0x97/0x150 [ 904.690957][ T253] ip6_dst_alloc+0x23/0x90 [ 904.690957][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 904.690957][ T253] ip6_pol_route+0x56f/0x840 [ 904.690957][ T253] fib6_rule_lookup+0x334/0x630 [ 904.690957][ T253] ip6_route_output_flags+0x259/0x480 [ 904.690957][ T253] inet6_rtm_getroute+0x980/0xf70 [ 904.690957][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 904.690957][ T253] netlink_rcv_skb+0x130/0x360 [ 904.690957][ T253] netlink_unicast+0x449/0x710 [ 904.690957][ T253] netlink_sendmsg+0x723/0xbe0 [ 904.690957][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 904.690957][ T253] ___sys_sendmsg+0xee/0x170 [ 904.690957][ T253] __sys_sendmsg+0xcd/0x170 [ 904.690957][ T253] do_syscall_64+0xc6/0x1e0 [ 904.690957][ T253] [ 904.693633][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 904.693633][ T253] netdev_get_by_index+0x5e/0x80 [ 904.693633][ T253] fib6_nh_init+0x3d8/0x1580 [ 904.693633][ T253] ip6_route_info_create+0xf18/0x17d0 [ 904.693633][ T253] addrconf_f6i_alloc+0x265/0x560 [ 904.693633][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 904.693633][ T253] addrconf_join_anycast+0x1c0/0x220 [ 904.693633][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 904.693633][ T253] addrconf_dad_completed+0x12b/0xe20 [ 904.693633][ T253] addrconf_dad_begin+0x310/0x670 [ 904.693633][ T253] addrconf_dad_work+0x10b/0xab0 [ 904.693633][ T253] process_one_work+0x84d/0x18a0 [ 904.693633][ T253] worker_thread+0x587/0xd30 [ 904.693633][ T253] kthread+0x28a/0x350 [ 904.693633][ T253] ret_from_fork+0x31/0x70 [ 904.693633][ T253] ret_from_fork_asm+0x1a/0x30 [ 904.693633][ T253] [ 904.696245][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 904.696245][ T253] netdev_get_by_index+0x5e/0x80 [ 904.696245][ T253] fib6_nh_init+0x3d8/0x1580 [ 904.696245][ T253] ip6_route_info_create+0xf18/0x17d0 [ 904.696245][ T253] ip6_route_add+0x1c/0x140 [ 904.696245][ T253] addrconf_prefix_route+0x2a6/0x430 [ 904.696245][ T253] inet6_addr_add+0x4f8/0xa40 [ 904.696245][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 904.696245][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 904.696245][ T253] netlink_rcv_skb+0x130/0x360 [ 904.696245][ T253] netlink_unicast+0x449/0x710 [ 904.696245][ T253] netlink_sendmsg+0x723/0xbe0 [ 904.696245][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 904.696245][ T253] ___sys_sendmsg+0xee/0x170 [ 904.696245][ T253] __sys_sendmsg+0xcd/0x170 [ 904.696245][ T253] do_syscall_64+0xc6/0x1e0 [ 904.696245][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 904.696245][ T253] [ 904.699099][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 904.699099][ T253] netdev_get_by_index+0x5e/0x80 [ 904.699099][ T253] fib6_nh_init+0x3d8/0x1580 [ 904.699099][ T253] ip6_route_info_create+0xf18/0x17d0 [ 904.699099][ T253] addrconf_f6i_alloc+0x315/0x560 [ 904.699099][ T253] ipv6_add_addr+0x411/0x2000 [ 904.699099][ T253] inet6_addr_add+0x30e/0xa40 [ 904.699099][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 904.699099][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 904.699099][ T253] netlink_rcv_skb+0x130/0x360 [ 904.699099][ T253] netlink_unicast+0x449/0x710 [ 904.699099][ T253] netlink_sendmsg+0x723/0xbe0 [ 904.699099][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 904.699099][ T253] ___sys_sendmsg+0xee/0x170 [ 904.699099][ T253] __sys_sendmsg+0xcd/0x170 [ 904.699099][ T253] do_syscall_64+0xc6/0x1e0 [ 904.699099][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 904.699099][ T253] [ 904.701819][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 904.701819][ T253] netdev_get_by_index+0x5e/0x80 [ 904.701819][ T253] fib6_nh_init+0x3d8/0x1580 [ 904.701819][ T253] ip6_route_info_create+0xf18/0x17d0 [ 904.701819][ T253] ip6_route_add+0x1c/0x140 [ 904.701819][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 904.701819][ T253] addrconf_add_dev+0xe2/0x170 [ 904.701819][ T253] inet6_addr_add+0x12f/0xa40 [ 904.701819][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 904.701819][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 904.701819][ T253] netlink_rcv_skb+0x130/0x360 [ 904.701819][ T253] netlink_unicast+0x449/0x710 [ 904.701819][ T253] netlink_sendmsg+0x723/0xbe0 [ 904.701819][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 904.701819][ T253] ___sys_sendmsg+0xee/0x170 [ 904.701819][ T253] __sys_sendmsg+0xcd/0x170 [ 904.701819][ T253] do_syscall_64+0xc6/0x1e0 [ 904.701819][ T253] [ 904.704486][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 904.704486][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 904.704486][ T253] ipv6_find_idev+0x102/0x170 [ 904.704486][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 904.704486][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 904.704486][ T253] netlink_rcv_skb+0x130/0x360 [ 904.704486][ T253] netlink_unicast+0x449/0x710 [ 904.704486][ T253] netlink_sendmsg+0x723/0xbe0 [ 904.704486][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 904.704486][ T253] ___sys_sendmsg+0xee/0x170 [ 904.704486][ T253] __sys_sendmsg+0xcd/0x170 [ 904.704486][ T253] do_syscall_64+0xc6/0x1e0 [ 904.704486][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 904.704486][ T253] [ 904.706592][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 904.706592][ T253] neigh_parms_alloc+0x1e5/0x510 [ 904.706592][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 904.706592][ T253] ipv6_find_idev+0x102/0x170 [ 904.706592][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 904.706592][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 904.706592][ T253] netlink_rcv_skb+0x130/0x360 [ 904.706592][ T253] netlink_unicast+0x449/0x710 [ 904.706592][ T253] netlink_sendmsg+0x723/0xbe0 [ 904.706592][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 904.706592][ T253] ___sys_sendmsg+0xee/0x170 [ 904.706592][ T253] __sys_sendmsg+0xcd/0x170 [ 904.706592][ T253] do_syscall_64+0xc6/0x1e0 [ 904.706592][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 904.706592][ T253] [ 914.962246][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 914.962778][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 914.962778][ T253] dst_init+0x84/0x4a0 [ 914.962778][ T253] dst_alloc+0x97/0x150 [ 914.962778][ T253] ip6_dst_alloc+0x23/0x90 [ 914.962778][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 914.962778][ T253] ip6_pol_route+0x56f/0x840 [ 914.962778][ T253] fib6_rule_lookup+0x334/0x630 [ 914.962778][ T253] ip6_route_output_flags+0x259/0x480 [ 914.962778][ T253] inet6_rtm_getroute+0x980/0xf70 [ 914.962778][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 914.962778][ T253] netlink_rcv_skb+0x130/0x360 [ 914.962778][ T253] netlink_unicast+0x449/0x710 [ 914.962778][ T253] netlink_sendmsg+0x723/0xbe0 [ 914.962778][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 914.962778][ T253] ___sys_sendmsg+0xee/0x170 [ 914.962778][ T253] __sys_sendmsg+0xcd/0x170 [ 914.962778][ T253] do_syscall_64+0xc6/0x1e0 [ 914.962778][ T253] [ 914.965045][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 914.965045][ T253] netdev_get_by_index+0x5e/0x80 [ 914.965045][ T253] fib6_nh_init+0x3d8/0x1580 [ 914.965045][ T253] ip6_route_info_create+0xf18/0x17d0 [ 914.965045][ T253] addrconf_f6i_alloc+0x265/0x560 [ 914.965045][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 914.965045][ T253] addrconf_join_anycast+0x1c0/0x220 [ 914.965045][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 914.965045][ T253] addrconf_dad_completed+0x12b/0xe20 [ 914.965045][ T253] addrconf_dad_begin+0x310/0x670 [ 914.965045][ T253] addrconf_dad_work+0x10b/0xab0 [ 914.965045][ T253] process_one_work+0x84d/0x18a0 [ 914.965045][ T253] worker_thread+0x587/0xd30 [ 914.965045][ T253] kthread+0x28a/0x350 [ 914.965045][ T253] ret_from_fork+0x31/0x70 [ 914.965045][ T253] ret_from_fork_asm+0x1a/0x30 [ 914.965045][ T253] [ 914.967261][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 914.967261][ T253] netdev_get_by_index+0x5e/0x80 [ 914.967261][ T253] fib6_nh_init+0x3d8/0x1580 [ 914.967261][ T253] ip6_route_info_create+0xf18/0x17d0 [ 914.967261][ T253] ip6_route_add+0x1c/0x140 [ 914.967261][ T253] addrconf_prefix_route+0x2a6/0x430 [ 914.967261][ T253] inet6_addr_add+0x4f8/0xa40 [ 914.967261][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 914.967261][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 914.967261][ T253] netlink_rcv_skb+0x130/0x360 [ 914.967261][ T253] netlink_unicast+0x449/0x710 [ 914.967261][ T253] netlink_sendmsg+0x723/0xbe0 [ 914.967261][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 914.967261][ T253] ___sys_sendmsg+0xee/0x170 [ 914.967261][ T253] __sys_sendmsg+0xcd/0x170 [ 914.967261][ T253] do_syscall_64+0xc6/0x1e0 [ 914.967261][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 914.967261][ T253] [ 914.969546][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 914.969546][ T253] netdev_get_by_index+0x5e/0x80 [ 914.969546][ T253] fib6_nh_init+0x3d8/0x1580 [ 914.969546][ T253] ip6_route_info_create+0xf18/0x17d0 [ 914.969546][ T253] addrconf_f6i_alloc+0x315/0x560 [ 914.969546][ T253] ipv6_add_addr+0x411/0x2000 [ 914.969546][ T253] inet6_addr_add+0x30e/0xa40 [ 914.969546][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 914.969546][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 914.969546][ T253] netlink_rcv_skb+0x130/0x360 [ 914.969546][ T253] netlink_unicast+0x449/0x710 [ 914.969546][ T253] netlink_sendmsg+0x723/0xbe0 [ 914.969546][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 914.969546][ T253] ___sys_sendmsg+0xee/0x170 [ 914.969546][ T253] __sys_sendmsg+0xcd/0x170 [ 914.969546][ T253] do_syscall_64+0xc6/0x1e0 [ 914.969546][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 914.969546][ T253] [ 914.971886][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 914.971886][ T253] netdev_get_by_index+0x5e/0x80 [ 914.971886][ T253] fib6_nh_init+0x3d8/0x1580 [ 914.971886][ T253] ip6_route_info_create+0xf18/0x17d0 [ 914.971886][ T253] ip6_route_add+0x1c/0x140 [ 914.971886][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 914.971886][ T253] addrconf_add_dev+0xe2/0x170 [ 914.971886][ T253] inet6_addr_add+0x12f/0xa40 [ 914.971886][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 914.971886][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 914.971886][ T253] netlink_rcv_skb+0x130/0x360 [ 914.971886][ T253] netlink_unicast+0x449/0x710 [ 914.971886][ T253] netlink_sendmsg+0x723/0xbe0 [ 914.971886][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 914.971886][ T253] ___sys_sendmsg+0xee/0x170 [ 914.971886][ T253] __sys_sendmsg+0xcd/0x170 [ 914.971886][ T253] do_syscall_64+0xc6/0x1e0 [ 914.971886][ T253] [ 914.974160][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 914.974160][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 914.974160][ T253] ipv6_find_idev+0x102/0x170 [ 914.974160][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 914.974160][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 914.974160][ T253] netlink_rcv_skb+0x130/0x360 [ 914.974160][ T253] netlink_unicast+0x449/0x710 [ 914.974160][ T253] netlink_sendmsg+0x723/0xbe0 [ 914.974160][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 914.974160][ T253] ___sys_sendmsg+0xee/0x170 [ 914.974160][ T253] __sys_sendmsg+0xcd/0x170 [ 914.974160][ T253] do_syscall_64+0xc6/0x1e0 [ 914.974160][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 914.974160][ T253] [ 914.975964][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 914.975964][ T253] neigh_parms_alloc+0x1e5/0x510 [ 914.975964][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 914.975964][ T253] ipv6_find_idev+0x102/0x170 [ 914.975964][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 914.975964][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 914.975964][ T253] netlink_rcv_skb+0x130/0x360 [ 914.975964][ T253] netlink_unicast+0x449/0x710 [ 914.975964][ T253] netlink_sendmsg+0x723/0xbe0 [ 914.975964][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 914.975964][ T253] ___sys_sendmsg+0xee/0x170 [ 914.975964][ T253] __sys_sendmsg+0xcd/0x170 [ 914.975964][ T253] do_syscall_64+0xc6/0x1e0 [ 914.975964][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 914.975964][ T253] [ 925.226328][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 925.226865][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 925.226865][ T253] dst_init+0x84/0x4a0 [ 925.226865][ T253] dst_alloc+0x97/0x150 [ 925.226865][ T253] ip6_dst_alloc+0x23/0x90 [ 925.226865][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 925.226865][ T253] ip6_pol_route+0x56f/0x840 [ 925.226865][ T253] fib6_rule_lookup+0x334/0x630 [ 925.226865][ T253] ip6_route_output_flags+0x259/0x480 [ 925.226865][ T253] inet6_rtm_getroute+0x980/0xf70 [ 925.226865][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 925.226865][ T253] netlink_rcv_skb+0x130/0x360 [ 925.226865][ T253] netlink_unicast+0x449/0x710 [ 925.226865][ T253] netlink_sendmsg+0x723/0xbe0 [ 925.226865][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 925.226865][ T253] ___sys_sendmsg+0xee/0x170 [ 925.226865][ T253] __sys_sendmsg+0xcd/0x170 [ 925.226865][ T253] do_syscall_64+0xc6/0x1e0 [ 925.226865][ T253] [ 925.229081][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 925.229081][ T253] netdev_get_by_index+0x5e/0x80 [ 925.229081][ T253] fib6_nh_init+0x3d8/0x1580 [ 925.229081][ T253] ip6_route_info_create+0xf18/0x17d0 [ 925.229081][ T253] addrconf_f6i_alloc+0x265/0x560 [ 925.229081][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 925.229081][ T253] addrconf_join_anycast+0x1c0/0x220 [ 925.229081][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 925.229081][ T253] addrconf_dad_completed+0x12b/0xe20 [ 925.229081][ T253] addrconf_dad_begin+0x310/0x670 [ 925.229081][ T253] addrconf_dad_work+0x10b/0xab0 [ 925.229081][ T253] process_one_work+0x84d/0x18a0 [ 925.229081][ T253] worker_thread+0x587/0xd30 [ 925.229081][ T253] kthread+0x28a/0x350 [ 925.229081][ T253] ret_from_fork+0x31/0x70 [ 925.229081][ T253] ret_from_fork_asm+0x1a/0x30 [ 925.229081][ T253] [ 925.231263][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 925.231263][ T253] netdev_get_by_index+0x5e/0x80 [ 925.231263][ T253] fib6_nh_init+0x3d8/0x1580 [ 925.231263][ T253] ip6_route_info_create+0xf18/0x17d0 [ 925.231263][ T253] ip6_route_add+0x1c/0x140 [ 925.231263][ T253] addrconf_prefix_route+0x2a6/0x430 [ 925.231263][ T253] inet6_addr_add+0x4f8/0xa40 [ 925.231263][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 925.231263][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 925.231263][ T253] netlink_rcv_skb+0x130/0x360 [ 925.231263][ T253] netlink_unicast+0x449/0x710 [ 925.231263][ T253] netlink_sendmsg+0x723/0xbe0 [ 925.231263][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 925.231263][ T253] ___sys_sendmsg+0xee/0x170 [ 925.231263][ T253] __sys_sendmsg+0xcd/0x170 [ 925.231263][ T253] do_syscall_64+0xc6/0x1e0 [ 925.231263][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 925.231263][ T253] [ 925.233509][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 925.233509][ T253] netdev_get_by_index+0x5e/0x80 [ 925.233509][ T253] fib6_nh_init+0x3d8/0x1580 [ 925.233509][ T253] ip6_route_info_create+0xf18/0x17d0 [ 925.233509][ T253] addrconf_f6i_alloc+0x315/0x560 [ 925.233509][ T253] ipv6_add_addr+0x411/0x2000 [ 925.233509][ T253] inet6_addr_add+0x30e/0xa40 [ 925.233509][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 925.233509][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 925.233509][ T253] netlink_rcv_skb+0x130/0x360 [ 925.233509][ T253] netlink_unicast+0x449/0x710 [ 925.233509][ T253] netlink_sendmsg+0x723/0xbe0 [ 925.233509][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 925.233509][ T253] ___sys_sendmsg+0xee/0x170 [ 925.233509][ T253] __sys_sendmsg+0xcd/0x170 [ 925.233509][ T253] do_syscall_64+0xc6/0x1e0 [ 925.233509][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 925.233509][ T253] [ 925.235760][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 925.235760][ T253] netdev_get_by_index+0x5e/0x80 [ 925.235760][ T253] fib6_nh_init+0x3d8/0x1580 [ 925.235760][ T253] ip6_route_info_create+0xf18/0x17d0 [ 925.235760][ T253] ip6_route_add+0x1c/0x140 [ 925.235760][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 925.235760][ T253] addrconf_add_dev+0xe2/0x170 [ 925.235760][ T253] inet6_addr_add+0x12f/0xa40 [ 925.235760][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 925.235760][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 925.235760][ T253] netlink_rcv_skb+0x130/0x360 [ 925.235760][ T253] netlink_unicast+0x449/0x710 [ 925.235760][ T253] netlink_sendmsg+0x723/0xbe0 [ 925.235760][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 925.235760][ T253] ___sys_sendmsg+0xee/0x170 [ 925.235760][ T253] __sys_sendmsg+0xcd/0x170 [ 925.235760][ T253] do_syscall_64+0xc6/0x1e0 [ 925.235760][ T253] [ 925.237959][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 925.237959][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 925.237959][ T253] ipv6_find_idev+0x102/0x170 [ 925.237959][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 925.237959][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 925.237959][ T253] netlink_rcv_skb+0x130/0x360 [ 925.237959][ T253] netlink_unicast+0x449/0x710 [ 925.237959][ T253] netlink_sendmsg+0x723/0xbe0 [ 925.237959][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 925.237959][ T253] ___sys_sendmsg+0xee/0x170 [ 925.237959][ T253] __sys_sendmsg+0xcd/0x170 [ 925.237959][ T253] do_syscall_64+0xc6/0x1e0 [ 925.237959][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 925.237959][ T253] [ 925.239684][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 925.239684][ T253] neigh_parms_alloc+0x1e5/0x510 [ 925.239684][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 925.239684][ T253] ipv6_find_idev+0x102/0x170 [ 925.239684][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 925.239684][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 925.239684][ T253] netlink_rcv_skb+0x130/0x360 [ 925.239684][ T253] netlink_unicast+0x449/0x710 [ 925.239684][ T253] netlink_sendmsg+0x723/0xbe0 [ 925.239684][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 925.239684][ T253] ___sys_sendmsg+0xee/0x170 [ 925.239684][ T253] __sys_sendmsg+0xcd/0x170 [ 925.239684][ T253] do_syscall_64+0xc6/0x1e0 [ 925.239684][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 925.239684][ T253] [ 935.490378][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 935.490855][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 935.490855][ T253] dst_init+0x84/0x4a0 [ 935.490855][ T253] dst_alloc+0x97/0x150 [ 935.490855][ T253] ip6_dst_alloc+0x23/0x90 [ 935.490855][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 935.490855][ T253] ip6_pol_route+0x56f/0x840 [ 935.490855][ T253] fib6_rule_lookup+0x334/0x630 [ 935.490855][ T253] ip6_route_output_flags+0x259/0x480 [ 935.490855][ T253] inet6_rtm_getroute+0x980/0xf70 [ 935.490855][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 935.490855][ T253] netlink_rcv_skb+0x130/0x360 [ 935.490855][ T253] netlink_unicast+0x449/0x710 [ 935.490855][ T253] netlink_sendmsg+0x723/0xbe0 [ 935.490855][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 935.490855][ T253] ___sys_sendmsg+0xee/0x170 [ 935.490855][ T253] __sys_sendmsg+0xcd/0x170 [ 935.490855][ T253] do_syscall_64+0xc6/0x1e0 [ 935.490855][ T253] [ 935.493080][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 935.493080][ T253] netdev_get_by_index+0x5e/0x80 [ 935.493080][ T253] fib6_nh_init+0x3d8/0x1580 [ 935.493080][ T253] ip6_route_info_create+0xf18/0x17d0 [ 935.493080][ T253] addrconf_f6i_alloc+0x265/0x560 [ 935.493080][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 935.493080][ T253] addrconf_join_anycast+0x1c0/0x220 [ 935.493080][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 935.493080][ T253] addrconf_dad_completed+0x12b/0xe20 [ 935.493080][ T253] addrconf_dad_begin+0x310/0x670 [ 935.493080][ T253] addrconf_dad_work+0x10b/0xab0 [ 935.493080][ T253] process_one_work+0x84d/0x18a0 [ 935.493080][ T253] worker_thread+0x587/0xd30 [ 935.493080][ T253] kthread+0x28a/0x350 [ 935.493080][ T253] ret_from_fork+0x31/0x70 [ 935.493080][ T253] ret_from_fork_asm+0x1a/0x30 [ 935.493080][ T253] [ 935.495256][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 935.495256][ T253] netdev_get_by_index+0x5e/0x80 [ 935.495256][ T253] fib6_nh_init+0x3d8/0x1580 [ 935.495256][ T253] ip6_route_info_create+0xf18/0x17d0 [ 935.495256][ T253] ip6_route_add+0x1c/0x140 [ 935.495256][ T253] addrconf_prefix_route+0x2a6/0x430 [ 935.495256][ T253] inet6_addr_add+0x4f8/0xa40 [ 935.495256][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 935.495256][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 935.495256][ T253] netlink_rcv_skb+0x130/0x360 [ 935.495256][ T253] netlink_unicast+0x449/0x710 [ 935.495256][ T253] netlink_sendmsg+0x723/0xbe0 [ 935.495256][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 935.495256][ T253] ___sys_sendmsg+0xee/0x170 [ 935.495256][ T253] __sys_sendmsg+0xcd/0x170 [ 935.495256][ T253] do_syscall_64+0xc6/0x1e0 [ 935.495256][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 935.495256][ T253] [ 935.497497][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 935.497497][ T253] netdev_get_by_index+0x5e/0x80 [ 935.497497][ T253] fib6_nh_init+0x3d8/0x1580 [ 935.497497][ T253] ip6_route_info_create+0xf18/0x17d0 [ 935.497497][ T253] addrconf_f6i_alloc+0x315/0x560 [ 935.497497][ T253] ipv6_add_addr+0x411/0x2000 [ 935.497497][ T253] inet6_addr_add+0x30e/0xa40 [ 935.497497][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 935.497497][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 935.497497][ T253] netlink_rcv_skb+0x130/0x360 [ 935.497497][ T253] netlink_unicast+0x449/0x710 [ 935.497497][ T253] netlink_sendmsg+0x723/0xbe0 [ 935.497497][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 935.497497][ T253] ___sys_sendmsg+0xee/0x170 [ 935.497497][ T253] __sys_sendmsg+0xcd/0x170 [ 935.497497][ T253] do_syscall_64+0xc6/0x1e0 [ 935.497497][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 935.497497][ T253] [ 935.499753][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 935.499753][ T253] netdev_get_by_index+0x5e/0x80 [ 935.499753][ T253] fib6_nh_init+0x3d8/0x1580 [ 935.499753][ T253] ip6_route_info_create+0xf18/0x17d0 [ 935.499753][ T253] ip6_route_add+0x1c/0x140 [ 935.499753][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 935.499753][ T253] addrconf_add_dev+0xe2/0x170 [ 935.499753][ T253] inet6_addr_add+0x12f/0xa40 [ 935.499753][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 935.499753][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 935.499753][ T253] netlink_rcv_skb+0x130/0x360 [ 935.499753][ T253] netlink_unicast+0x449/0x710 [ 935.499753][ T253] netlink_sendmsg+0x723/0xbe0 [ 935.499753][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 935.499753][ T253] ___sys_sendmsg+0xee/0x170 [ 935.499753][ T253] __sys_sendmsg+0xcd/0x170 [ 935.499753][ T253] do_syscall_64+0xc6/0x1e0 [ 935.499753][ T253] [ 935.501977][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 935.501977][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 935.501977][ T253] ipv6_find_idev+0x102/0x170 [ 935.501977][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 935.501977][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 935.501977][ T253] netlink_rcv_skb+0x130/0x360 [ 935.501977][ T253] netlink_unicast+0x449/0x710 [ 935.501977][ T253] netlink_sendmsg+0x723/0xbe0 [ 935.501977][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 935.501977][ T253] ___sys_sendmsg+0xee/0x170 [ 935.501977][ T253] __sys_sendmsg+0xcd/0x170 [ 935.501977][ T253] do_syscall_64+0xc6/0x1e0 [ 935.501977][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 935.501977][ T253] [ 935.503715][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 935.503715][ T253] neigh_parms_alloc+0x1e5/0x510 [ 935.503715][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 935.503715][ T253] ipv6_find_idev+0x102/0x170 [ 935.503715][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 935.503715][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 935.503715][ T253] netlink_rcv_skb+0x130/0x360 [ 935.503715][ T253] netlink_unicast+0x449/0x710 [ 935.503715][ T253] netlink_sendmsg+0x723/0xbe0 [ 935.503715][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 935.503715][ T253] ___sys_sendmsg+0xee/0x170 [ 935.503715][ T253] __sys_sendmsg+0xcd/0x170 [ 935.503715][ T253] do_syscall_64+0xc6/0x1e0 [ 935.503715][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 935.503715][ T253] [ 945.754366][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 945.754891][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 945.754891][ T253] dst_init+0x84/0x4a0 [ 945.754891][ T253] dst_alloc+0x97/0x150 [ 945.754891][ T253] ip6_dst_alloc+0x23/0x90 [ 945.754891][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 945.754891][ T253] ip6_pol_route+0x56f/0x840 [ 945.754891][ T253] fib6_rule_lookup+0x334/0x630 [ 945.754891][ T253] ip6_route_output_flags+0x259/0x480 [ 945.754891][ T253] inet6_rtm_getroute+0x980/0xf70 [ 945.754891][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 945.754891][ T253] netlink_rcv_skb+0x130/0x360 [ 945.754891][ T253] netlink_unicast+0x449/0x710 [ 945.754891][ T253] netlink_sendmsg+0x723/0xbe0 [ 945.754891][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 945.754891][ T253] ___sys_sendmsg+0xee/0x170 [ 945.754891][ T253] __sys_sendmsg+0xcd/0x170 [ 945.754891][ T253] do_syscall_64+0xc6/0x1e0 [ 945.754891][ T253] [ 945.757323][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 945.757323][ T253] netdev_get_by_index+0x5e/0x80 [ 945.757323][ T253] fib6_nh_init+0x3d8/0x1580 [ 945.757323][ T253] ip6_route_info_create+0xf18/0x17d0 [ 945.757323][ T253] addrconf_f6i_alloc+0x265/0x560 [ 945.757323][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 945.757323][ T253] addrconf_join_anycast+0x1c0/0x220 [ 945.757323][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 945.757323][ T253] addrconf_dad_completed+0x12b/0xe20 [ 945.757323][ T253] addrconf_dad_begin+0x310/0x670 [ 945.757323][ T253] addrconf_dad_work+0x10b/0xab0 [ 945.757323][ T253] process_one_work+0x84d/0x18a0 [ 945.757323][ T253] worker_thread+0x587/0xd30 [ 945.757323][ T253] kthread+0x28a/0x350 [ 945.757323][ T253] ret_from_fork+0x31/0x70 [ 945.757323][ T253] ret_from_fork_asm+0x1a/0x30 [ 945.757323][ T253] [ 945.759687][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 945.759687][ T253] netdev_get_by_index+0x5e/0x80 [ 945.759687][ T253] fib6_nh_init+0x3d8/0x1580 [ 945.759687][ T253] ip6_route_info_create+0xf18/0x17d0 [ 945.759687][ T253] ip6_route_add+0x1c/0x140 [ 945.759687][ T253] addrconf_prefix_route+0x2a6/0x430 [ 945.759687][ T253] inet6_addr_add+0x4f8/0xa40 [ 945.759687][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 945.759687][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 945.759687][ T253] netlink_rcv_skb+0x130/0x360 [ 945.759687][ T253] netlink_unicast+0x449/0x710 [ 945.759687][ T253] netlink_sendmsg+0x723/0xbe0 [ 945.759687][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 945.759687][ T253] ___sys_sendmsg+0xee/0x170 [ 945.759687][ T253] __sys_sendmsg+0xcd/0x170 [ 945.759687][ T253] do_syscall_64+0xc6/0x1e0 [ 945.759687][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 945.759687][ T253] [ 945.762125][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 945.762125][ T253] netdev_get_by_index+0x5e/0x80 [ 945.762125][ T253] fib6_nh_init+0x3d8/0x1580 [ 945.762125][ T253] ip6_route_info_create+0xf18/0x17d0 [ 945.762125][ T253] addrconf_f6i_alloc+0x315/0x560 [ 945.762125][ T253] ipv6_add_addr+0x411/0x2000 [ 945.762125][ T253] inet6_addr_add+0x30e/0xa40 [ 945.762125][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 945.762125][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 945.762125][ T253] netlink_rcv_skb+0x130/0x360 [ 945.762125][ T253] netlink_unicast+0x449/0x710 [ 945.762125][ T253] netlink_sendmsg+0x723/0xbe0 [ 945.762125][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 945.762125][ T253] ___sys_sendmsg+0xee/0x170 [ 945.762125][ T253] __sys_sendmsg+0xcd/0x170 [ 945.762125][ T253] do_syscall_64+0xc6/0x1e0 [ 945.762125][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 945.762125][ T253] [ 945.764555][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 945.764555][ T253] netdev_get_by_index+0x5e/0x80 [ 945.764555][ T253] fib6_nh_init+0x3d8/0x1580 [ 945.764555][ T253] ip6_route_info_create+0xf18/0x17d0 [ 945.764555][ T253] ip6_route_add+0x1c/0x140 [ 945.764555][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 945.764555][ T253] addrconf_add_dev+0xe2/0x170 [ 945.764555][ T253] inet6_addr_add+0x12f/0xa40 [ 945.764555][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 945.764555][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 945.764555][ T253] netlink_rcv_skb+0x130/0x360 [ 945.764555][ T253] netlink_unicast+0x449/0x710 [ 945.764555][ T253] netlink_sendmsg+0x723/0xbe0 [ 945.764555][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 945.764555][ T253] ___sys_sendmsg+0xee/0x170 [ 945.764555][ T253] __sys_sendmsg+0xcd/0x170 [ 945.764555][ T253] do_syscall_64+0xc6/0x1e0 [ 945.764555][ T253] [ 945.766932][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 945.766932][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 945.766932][ T253] ipv6_find_idev+0x102/0x170 [ 945.766932][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 945.766932][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 945.766932][ T253] netlink_rcv_skb+0x130/0x360 [ 945.766932][ T253] netlink_unicast+0x449/0x710 [ 945.766932][ T253] netlink_sendmsg+0x723/0xbe0 [ 945.766932][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 945.766932][ T253] ___sys_sendmsg+0xee/0x170 [ 945.766932][ T253] __sys_sendmsg+0xcd/0x170 [ 945.766932][ T253] do_syscall_64+0xc6/0x1e0 [ 945.766932][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 945.766932][ T253] [ 945.768792][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 945.768792][ T253] neigh_parms_alloc+0x1e5/0x510 [ 945.768792][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 945.768792][ T253] ipv6_find_idev+0x102/0x170 [ 945.768792][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 945.768792][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 945.768792][ T253] netlink_rcv_skb+0x130/0x360 [ 945.768792][ T253] netlink_unicast+0x449/0x710 [ 945.768792][ T253] netlink_sendmsg+0x723/0xbe0 [ 945.768792][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 945.768792][ T253] ___sys_sendmsg+0xee/0x170 [ 945.768792][ T253] __sys_sendmsg+0xcd/0x170 [ 945.768792][ T253] do_syscall_64+0xc6/0x1e0 [ 945.768792][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 945.768792][ T253] [ 956.018304][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 956.018828][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 956.018828][ T253] dst_init+0x84/0x4a0 [ 956.018828][ T253] dst_alloc+0x97/0x150 [ 956.018828][ T253] ip6_dst_alloc+0x23/0x90 [ 956.018828][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 956.018828][ T253] ip6_pol_route+0x56f/0x840 [ 956.018828][ T253] fib6_rule_lookup+0x334/0x630 [ 956.018828][ T253] ip6_route_output_flags+0x259/0x480 [ 956.018828][ T253] inet6_rtm_getroute+0x980/0xf70 [ 956.018828][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 956.018828][ T253] netlink_rcv_skb+0x130/0x360 [ 956.018828][ T253] netlink_unicast+0x449/0x710 [ 956.018828][ T253] netlink_sendmsg+0x723/0xbe0 [ 956.018828][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 956.018828][ T253] ___sys_sendmsg+0xee/0x170 [ 956.018828][ T253] __sys_sendmsg+0xcd/0x170 [ 956.018828][ T253] do_syscall_64+0xc6/0x1e0 [ 956.018828][ T253] [ 956.021064][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 956.021064][ T253] netdev_get_by_index+0x5e/0x80 [ 956.021064][ T253] fib6_nh_init+0x3d8/0x1580 [ 956.021064][ T253] ip6_route_info_create+0xf18/0x17d0 [ 956.021064][ T253] addrconf_f6i_alloc+0x265/0x560 [ 956.021064][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 956.021064][ T253] addrconf_join_anycast+0x1c0/0x220 [ 956.021064][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 956.021064][ T253] addrconf_dad_completed+0x12b/0xe20 [ 956.021064][ T253] addrconf_dad_begin+0x310/0x670 [ 956.021064][ T253] addrconf_dad_work+0x10b/0xab0 [ 956.021064][ T253] process_one_work+0x84d/0x18a0 [ 956.021064][ T253] worker_thread+0x587/0xd30 [ 956.021064][ T253] kthread+0x28a/0x350 [ 956.021064][ T253] ret_from_fork+0x31/0x70 [ 956.021064][ T253] ret_from_fork_asm+0x1a/0x30 [ 956.021064][ T253] [ 956.023219][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 956.023219][ T253] netdev_get_by_index+0x5e/0x80 [ 956.023219][ T253] fib6_nh_init+0x3d8/0x1580 [ 956.023219][ T253] ip6_route_info_create+0xf18/0x17d0 [ 956.023219][ T253] ip6_route_add+0x1c/0x140 [ 956.023219][ T253] addrconf_prefix_route+0x2a6/0x430 [ 956.023219][ T253] inet6_addr_add+0x4f8/0xa40 [ 956.023219][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 956.023219][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 956.023219][ T253] netlink_rcv_skb+0x130/0x360 [ 956.023219][ T253] netlink_unicast+0x449/0x710 [ 956.023219][ T253] netlink_sendmsg+0x723/0xbe0 [ 956.023219][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 956.023219][ T253] ___sys_sendmsg+0xee/0x170 [ 956.023219][ T253] __sys_sendmsg+0xcd/0x170 [ 956.023219][ T253] do_syscall_64+0xc6/0x1e0 [ 956.023219][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 956.023219][ T253] [ 956.025490][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 956.025490][ T253] netdev_get_by_index+0x5e/0x80 [ 956.025490][ T253] fib6_nh_init+0x3d8/0x1580 [ 956.025490][ T253] ip6_route_info_create+0xf18/0x17d0 [ 956.025490][ T253] addrconf_f6i_alloc+0x315/0x560 [ 956.025490][ T253] ipv6_add_addr+0x411/0x2000 [ 956.025490][ T253] inet6_addr_add+0x30e/0xa40 [ 956.025490][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 956.025490][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 956.025490][ T253] netlink_rcv_skb+0x130/0x360 [ 956.025490][ T253] netlink_unicast+0x449/0x710 [ 956.025490][ T253] netlink_sendmsg+0x723/0xbe0 [ 956.025490][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 956.025490][ T253] ___sys_sendmsg+0xee/0x170 [ 956.025490][ T253] __sys_sendmsg+0xcd/0x170 [ 956.025490][ T253] do_syscall_64+0xc6/0x1e0 [ 956.025490][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 956.025490][ T253] [ 956.027735][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 956.027735][ T253] netdev_get_by_index+0x5e/0x80 [ 956.027735][ T253] fib6_nh_init+0x3d8/0x1580 [ 956.027735][ T253] ip6_route_info_create+0xf18/0x17d0 [ 956.027735][ T253] ip6_route_add+0x1c/0x140 [ 956.027735][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 956.027735][ T253] addrconf_add_dev+0xe2/0x170 [ 956.027735][ T253] inet6_addr_add+0x12f/0xa40 [ 956.027735][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 956.027735][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 956.027735][ T253] netlink_rcv_skb+0x130/0x360 [ 956.027735][ T253] netlink_unicast+0x449/0x710 [ 956.027735][ T253] netlink_sendmsg+0x723/0xbe0 [ 956.027735][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 956.027735][ T253] ___sys_sendmsg+0xee/0x170 [ 956.027735][ T253] __sys_sendmsg+0xcd/0x170 [ 956.027735][ T253] do_syscall_64+0xc6/0x1e0 [ 956.027735][ T253] [ 956.029940][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 956.029940][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 956.029940][ T253] ipv6_find_idev+0x102/0x170 [ 956.029940][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 956.029940][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 956.029940][ T253] netlink_rcv_skb+0x130/0x360 [ 956.029940][ T253] netlink_unicast+0x449/0x710 [ 956.029940][ T253] netlink_sendmsg+0x723/0xbe0 [ 956.029940][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 956.029940][ T253] ___sys_sendmsg+0xee/0x170 [ 956.029940][ T253] __sys_sendmsg+0xcd/0x170 [ 956.029940][ T253] do_syscall_64+0xc6/0x1e0 [ 956.029940][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 956.029940][ T253] [ 956.031668][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 956.031668][ T253] neigh_parms_alloc+0x1e5/0x510 [ 956.031668][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 956.031668][ T253] ipv6_find_idev+0x102/0x170 [ 956.031668][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 956.031668][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 956.031668][ T253] netlink_rcv_skb+0x130/0x360 [ 956.031668][ T253] netlink_unicast+0x449/0x710 [ 956.031668][ T253] netlink_sendmsg+0x723/0xbe0 [ 956.031668][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 956.031668][ T253] ___sys_sendmsg+0xee/0x170 [ 956.031668][ T253] __sys_sendmsg+0xcd/0x170 [ 956.031668][ T253] do_syscall_64+0xc6/0x1e0 [ 956.031668][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 956.031668][ T253] [ 966.282398][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 966.282968][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 966.282968][ T253] dst_init+0x84/0x4a0 [ 966.282968][ T253] dst_alloc+0x97/0x150 [ 966.282968][ T253] ip6_dst_alloc+0x23/0x90 [ 966.282968][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 966.282968][ T253] ip6_pol_route+0x56f/0x840 [ 966.282968][ T253] fib6_rule_lookup+0x334/0x630 [ 966.282968][ T253] ip6_route_output_flags+0x259/0x480 [ 966.282968][ T253] inet6_rtm_getroute+0x980/0xf70 [ 966.282968][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 966.282968][ T253] netlink_rcv_skb+0x130/0x360 [ 966.282968][ T253] netlink_unicast+0x449/0x710 [ 966.282968][ T253] netlink_sendmsg+0x723/0xbe0 [ 966.282968][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 966.282968][ T253] ___sys_sendmsg+0xee/0x170 [ 966.282968][ T253] __sys_sendmsg+0xcd/0x170 [ 966.282968][ T253] do_syscall_64+0xc6/0x1e0 [ 966.282968][ T253] [ 966.285351][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 966.285351][ T253] netdev_get_by_index+0x5e/0x80 [ 966.285351][ T253] fib6_nh_init+0x3d8/0x1580 [ 966.285351][ T253] ip6_route_info_create+0xf18/0x17d0 [ 966.285351][ T253] addrconf_f6i_alloc+0x265/0x560 [ 966.285351][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 966.285351][ T253] addrconf_join_anycast+0x1c0/0x220 [ 966.285351][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 966.285351][ T253] addrconf_dad_completed+0x12b/0xe20 [ 966.285351][ T253] addrconf_dad_begin+0x310/0x670 [ 966.285351][ T253] addrconf_dad_work+0x10b/0xab0 [ 966.285351][ T253] process_one_work+0x84d/0x18a0 [ 966.285351][ T253] worker_thread+0x587/0xd30 [ 966.285351][ T253] kthread+0x28a/0x350 [ 966.285351][ T253] ret_from_fork+0x31/0x70 [ 966.285351][ T253] ret_from_fork_asm+0x1a/0x30 [ 966.285351][ T253] [ 966.287506][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 966.287506][ T253] netdev_get_by_index+0x5e/0x80 [ 966.287506][ T253] fib6_nh_init+0x3d8/0x1580 [ 966.287506][ T253] ip6_route_info_create+0xf18/0x17d0 [ 966.287506][ T253] ip6_route_add+0x1c/0x140 [ 966.287506][ T253] addrconf_prefix_route+0x2a6/0x430 [ 966.287506][ T253] inet6_addr_add+0x4f8/0xa40 [ 966.287506][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 966.287506][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 966.287506][ T253] netlink_rcv_skb+0x130/0x360 [ 966.287506][ T253] netlink_unicast+0x449/0x710 [ 966.287506][ T253] netlink_sendmsg+0x723/0xbe0 [ 966.287506][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 966.287506][ T253] ___sys_sendmsg+0xee/0x170 [ 966.287506][ T253] __sys_sendmsg+0xcd/0x170 [ 966.287506][ T253] do_syscall_64+0xc6/0x1e0 [ 966.287506][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 966.287506][ T253] [ 966.289750][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 966.289750][ T253] netdev_get_by_index+0x5e/0x80 [ 966.289750][ T253] fib6_nh_init+0x3d8/0x1580 [ 966.289750][ T253] ip6_route_info_create+0xf18/0x17d0 [ 966.289750][ T253] addrconf_f6i_alloc+0x315/0x560 [ 966.289750][ T253] ipv6_add_addr+0x411/0x2000 [ 966.289750][ T253] inet6_addr_add+0x30e/0xa40 [ 966.289750][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 966.289750][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 966.289750][ T253] netlink_rcv_skb+0x130/0x360 [ 966.289750][ T253] netlink_unicast+0x449/0x710 [ 966.289750][ T253] netlink_sendmsg+0x723/0xbe0 [ 966.289750][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 966.289750][ T253] ___sys_sendmsg+0xee/0x170 [ 966.289750][ T253] __sys_sendmsg+0xcd/0x170 [ 966.289750][ T253] do_syscall_64+0xc6/0x1e0 [ 966.289750][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 966.289750][ T253] [ 966.292000][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 966.292000][ T253] netdev_get_by_index+0x5e/0x80 [ 966.292000][ T253] fib6_nh_init+0x3d8/0x1580 [ 966.292000][ T253] ip6_route_info_create+0xf18/0x17d0 [ 966.292000][ T253] ip6_route_add+0x1c/0x140 [ 966.292000][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 966.292000][ T253] addrconf_add_dev+0xe2/0x170 [ 966.292000][ T253] inet6_addr_add+0x12f/0xa40 [ 966.292000][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 966.292000][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 966.292000][ T253] netlink_rcv_skb+0x130/0x360 [ 966.292000][ T253] netlink_unicast+0x449/0x710 [ 966.292000][ T253] netlink_sendmsg+0x723/0xbe0 [ 966.292000][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 966.292000][ T253] ___sys_sendmsg+0xee/0x170 [ 966.292000][ T253] __sys_sendmsg+0xcd/0x170 [ 966.292000][ T253] do_syscall_64+0xc6/0x1e0 [ 966.292000][ T253] [ 966.294212][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 966.294212][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 966.294212][ T253] ipv6_find_idev+0x102/0x170 [ 966.294212][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 966.294212][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 966.294212][ T253] netlink_rcv_skb+0x130/0x360 [ 966.294212][ T253] netlink_unicast+0x449/0x710 [ 966.294212][ T253] netlink_sendmsg+0x723/0xbe0 [ 966.294212][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 966.294212][ T253] ___sys_sendmsg+0xee/0x170 [ 966.294212][ T253] __sys_sendmsg+0xcd/0x170 [ 966.294212][ T253] do_syscall_64+0xc6/0x1e0 [ 966.294212][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 966.294212][ T253] [ 966.295973][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 966.295973][ T253] neigh_parms_alloc+0x1e5/0x510 [ 966.295973][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 966.295973][ T253] ipv6_find_idev+0x102/0x170 [ 966.295973][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 966.295973][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 966.295973][ T253] netlink_rcv_skb+0x130/0x360 [ 966.295973][ T253] netlink_unicast+0x449/0x710 [ 966.295973][ T253] netlink_sendmsg+0x723/0xbe0 [ 966.295973][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 966.295973][ T253] ___sys_sendmsg+0xee/0x170 [ 966.295973][ T253] __sys_sendmsg+0xcd/0x170 [ 966.295973][ T253] do_syscall_64+0xc6/0x1e0 [ 966.295973][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 966.295973][ T253] [ 976.546461][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 976.546936][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 976.546936][ T253] dst_init+0x84/0x4a0 [ 976.546936][ T253] dst_alloc+0x97/0x150 [ 976.546936][ T253] ip6_dst_alloc+0x23/0x90 [ 976.546936][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 976.546936][ T253] ip6_pol_route+0x56f/0x840 [ 976.546936][ T253] fib6_rule_lookup+0x334/0x630 [ 976.546936][ T253] ip6_route_output_flags+0x259/0x480 [ 976.546936][ T253] inet6_rtm_getroute+0x980/0xf70 [ 976.546936][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 976.546936][ T253] netlink_rcv_skb+0x130/0x360 [ 976.546936][ T253] netlink_unicast+0x449/0x710 [ 976.546936][ T253] netlink_sendmsg+0x723/0xbe0 [ 976.546936][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 976.546936][ T253] ___sys_sendmsg+0xee/0x170 [ 976.546936][ T253] __sys_sendmsg+0xcd/0x170 [ 976.546936][ T253] do_syscall_64+0xc6/0x1e0 [ 976.546936][ T253] [ 976.549153][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 976.549153][ T253] netdev_get_by_index+0x5e/0x80 [ 976.549153][ T253] fib6_nh_init+0x3d8/0x1580 [ 976.549153][ T253] ip6_route_info_create+0xf18/0x17d0 [ 976.549153][ T253] addrconf_f6i_alloc+0x265/0x560 [ 976.549153][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 976.549153][ T253] addrconf_join_anycast+0x1c0/0x220 [ 976.549153][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 976.549153][ T253] addrconf_dad_completed+0x12b/0xe20 [ 976.549153][ T253] addrconf_dad_begin+0x310/0x670 [ 976.549153][ T253] addrconf_dad_work+0x10b/0xab0 [ 976.549153][ T253] process_one_work+0x84d/0x18a0 [ 976.549153][ T253] worker_thread+0x587/0xd30 [ 976.549153][ T253] kthread+0x28a/0x350 [ 976.549153][ T253] ret_from_fork+0x31/0x70 [ 976.549153][ T253] ret_from_fork_asm+0x1a/0x30 [ 976.549153][ T253] [ 976.551317][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 976.551317][ T253] netdev_get_by_index+0x5e/0x80 [ 976.551317][ T253] fib6_nh_init+0x3d8/0x1580 [ 976.551317][ T253] ip6_route_info_create+0xf18/0x17d0 [ 976.551317][ T253] ip6_route_add+0x1c/0x140 [ 976.551317][ T253] addrconf_prefix_route+0x2a6/0x430 [ 976.551317][ T253] inet6_addr_add+0x4f8/0xa40 [ 976.551317][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 976.551317][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 976.551317][ T253] netlink_rcv_skb+0x130/0x360 [ 976.551317][ T253] netlink_unicast+0x449/0x710 [ 976.551317][ T253] netlink_sendmsg+0x723/0xbe0 [ 976.551317][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 976.551317][ T253] ___sys_sendmsg+0xee/0x170 [ 976.551317][ T253] __sys_sendmsg+0xcd/0x170 [ 976.551317][ T253] do_syscall_64+0xc6/0x1e0 [ 976.551317][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 976.551317][ T253] [ 976.553562][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 976.553562][ T253] netdev_get_by_index+0x5e/0x80 [ 976.553562][ T253] fib6_nh_init+0x3d8/0x1580 [ 976.553562][ T253] ip6_route_info_create+0xf18/0x17d0 [ 976.553562][ T253] addrconf_f6i_alloc+0x315/0x560 [ 976.553562][ T253] ipv6_add_addr+0x411/0x2000 [ 976.553562][ T253] inet6_addr_add+0x30e/0xa40 [ 976.553562][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 976.553562][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 976.553562][ T253] netlink_rcv_skb+0x130/0x360 [ 976.553562][ T253] netlink_unicast+0x449/0x710 [ 976.553562][ T253] netlink_sendmsg+0x723/0xbe0 [ 976.553562][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 976.553562][ T253] ___sys_sendmsg+0xee/0x170 [ 976.553562][ T253] __sys_sendmsg+0xcd/0x170 [ 976.553562][ T253] do_syscall_64+0xc6/0x1e0 [ 976.553562][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 976.553562][ T253] [ 976.555825][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 976.555825][ T253] netdev_get_by_index+0x5e/0x80 [ 976.555825][ T253] fib6_nh_init+0x3d8/0x1580 [ 976.555825][ T253] ip6_route_info_create+0xf18/0x17d0 [ 976.555825][ T253] ip6_route_add+0x1c/0x140 [ 976.555825][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 976.555825][ T253] addrconf_add_dev+0xe2/0x170 [ 976.555825][ T253] inet6_addr_add+0x12f/0xa40 [ 976.555825][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 976.555825][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 976.555825][ T253] netlink_rcv_skb+0x130/0x360 [ 976.555825][ T253] netlink_unicast+0x449/0x710 [ 976.555825][ T253] netlink_sendmsg+0x723/0xbe0 [ 976.555825][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 976.555825][ T253] ___sys_sendmsg+0xee/0x170 [ 976.555825][ T253] __sys_sendmsg+0xcd/0x170 [ 976.555825][ T253] do_syscall_64+0xc6/0x1e0 [ 976.555825][ T253] [ 976.558036][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 976.558036][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 976.558036][ T253] ipv6_find_idev+0x102/0x170 [ 976.558036][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 976.558036][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 976.558036][ T253] netlink_rcv_skb+0x130/0x360 [ 976.558036][ T253] netlink_unicast+0x449/0x710 [ 976.558036][ T253] netlink_sendmsg+0x723/0xbe0 [ 976.558036][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 976.558036][ T253] ___sys_sendmsg+0xee/0x170 [ 976.558036][ T253] __sys_sendmsg+0xcd/0x170 [ 976.558036][ T253] do_syscall_64+0xc6/0x1e0 [ 976.558036][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 976.558036][ T253] [ 976.559760][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 976.559760][ T253] neigh_parms_alloc+0x1e5/0x510 [ 976.559760][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 976.559760][ T253] ipv6_find_idev+0x102/0x170 [ 976.559760][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 976.559760][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 976.559760][ T253] netlink_rcv_skb+0x130/0x360 [ 976.559760][ T253] netlink_unicast+0x449/0x710 [ 976.559760][ T253] netlink_sendmsg+0x723/0xbe0 [ 976.559760][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 976.559760][ T253] ___sys_sendmsg+0xee/0x170 [ 976.559760][ T253] __sys_sendmsg+0xcd/0x170 [ 976.559760][ T253] do_syscall_64+0xc6/0x1e0 [ 976.559760][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 976.559760][ T253] [ 986.594381][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 986.594967][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 986.594967][ T253] dst_init+0x84/0x4a0 [ 986.594967][ T253] dst_alloc+0x97/0x150 [ 986.594967][ T253] ip6_dst_alloc+0x23/0x90 [ 986.594967][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 986.594967][ T253] ip6_pol_route+0x56f/0x840 [ 986.594967][ T253] fib6_rule_lookup+0x334/0x630 [ 986.594967][ T253] ip6_route_output_flags+0x259/0x480 [ 986.594967][ T253] inet6_rtm_getroute+0x980/0xf70 [ 986.594967][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 986.594967][ T253] netlink_rcv_skb+0x130/0x360 [ 986.594967][ T253] netlink_unicast+0x449/0x710 [ 986.594967][ T253] netlink_sendmsg+0x723/0xbe0 [ 986.594967][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 986.594967][ T253] ___sys_sendmsg+0xee/0x170 [ 986.594967][ T253] __sys_sendmsg+0xcd/0x170 [ 986.594967][ T253] do_syscall_64+0xc6/0x1e0 [ 986.594967][ T253] [ 986.597205][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 986.597205][ T253] netdev_get_by_index+0x5e/0x80 [ 986.597205][ T253] fib6_nh_init+0x3d8/0x1580 [ 986.597205][ T253] ip6_route_info_create+0xf18/0x17d0 [ 986.597205][ T253] addrconf_f6i_alloc+0x265/0x560 [ 986.597205][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 986.597205][ T253] addrconf_join_anycast+0x1c0/0x220 [ 986.597205][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 986.597205][ T253] addrconf_dad_completed+0x12b/0xe20 [ 986.597205][ T253] addrconf_dad_begin+0x310/0x670 [ 986.597205][ T253] addrconf_dad_work+0x10b/0xab0 [ 986.597205][ T253] process_one_work+0x84d/0x18a0 [ 986.597205][ T253] worker_thread+0x587/0xd30 [ 986.597205][ T253] kthread+0x28a/0x350 [ 986.597205][ T253] ret_from_fork+0x31/0x70 [ 986.597205][ T253] ret_from_fork_asm+0x1a/0x30 [ 986.597205][ T253] [ 986.599395][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 986.599395][ T253] netdev_get_by_index+0x5e/0x80 [ 986.599395][ T253] fib6_nh_init+0x3d8/0x1580 [ 986.599395][ T253] ip6_route_info_create+0xf18/0x17d0 [ 986.599395][ T253] ip6_route_add+0x1c/0x140 [ 986.599395][ T253] addrconf_prefix_route+0x2a6/0x430 [ 986.599395][ T253] inet6_addr_add+0x4f8/0xa40 [ 986.599395][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 986.599395][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 986.599395][ T253] netlink_rcv_skb+0x130/0x360 [ 986.599395][ T253] netlink_unicast+0x449/0x710 [ 986.599395][ T253] netlink_sendmsg+0x723/0xbe0 [ 986.599395][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 986.599395][ T253] ___sys_sendmsg+0xee/0x170 [ 986.599395][ T253] __sys_sendmsg+0xcd/0x170 [ 986.599395][ T253] do_syscall_64+0xc6/0x1e0 [ 986.599395][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 986.599395][ T253] [ 986.602046][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 986.602046][ T253] netdev_get_by_index+0x5e/0x80 [ 986.602046][ T253] fib6_nh_init+0x3d8/0x1580 [ 986.602046][ T253] ip6_route_info_create+0xf18/0x17d0 [ 986.602046][ T253] addrconf_f6i_alloc+0x315/0x560 [ 986.602046][ T253] ipv6_add_addr+0x411/0x2000 [ 986.602046][ T253] inet6_addr_add+0x30e/0xa40 [ 986.602046][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 986.602046][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 986.602046][ T253] netlink_rcv_skb+0x130/0x360 [ 986.602046][ T253] netlink_unicast+0x449/0x710 [ 986.602046][ T253] netlink_sendmsg+0x723/0xbe0 [ 986.602046][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 986.602046][ T253] ___sys_sendmsg+0xee/0x170 [ 986.602046][ T253] __sys_sendmsg+0xcd/0x170 [ 986.602046][ T253] do_syscall_64+0xc6/0x1e0 [ 986.602046][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 986.602046][ T253] [ 986.604296][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 986.604296][ T253] netdev_get_by_index+0x5e/0x80 [ 986.604296][ T253] fib6_nh_init+0x3d8/0x1580 [ 986.604296][ T253] ip6_route_info_create+0xf18/0x17d0 [ 986.604296][ T253] ip6_route_add+0x1c/0x140 [ 986.604296][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 986.604296][ T253] addrconf_add_dev+0xe2/0x170 [ 986.604296][ T253] inet6_addr_add+0x12f/0xa40 [ 986.604296][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 986.604296][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 986.604296][ T253] netlink_rcv_skb+0x130/0x360 [ 986.604296][ T253] netlink_unicast+0x449/0x710 [ 986.604296][ T253] netlink_sendmsg+0x723/0xbe0 [ 986.604296][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 986.604296][ T253] ___sys_sendmsg+0xee/0x170 [ 986.604296][ T253] __sys_sendmsg+0xcd/0x170 [ 986.604296][ T253] do_syscall_64+0xc6/0x1e0 [ 986.604296][ T253] [ 986.606516][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 986.606516][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 986.606516][ T253] ipv6_find_idev+0x102/0x170 [ 986.606516][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 986.606516][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 986.606516][ T253] netlink_rcv_skb+0x130/0x360 [ 986.606516][ T253] netlink_unicast+0x449/0x710 [ 986.606516][ T253] netlink_sendmsg+0x723/0xbe0 [ 986.606516][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 986.606516][ T253] ___sys_sendmsg+0xee/0x170 [ 986.606516][ T253] __sys_sendmsg+0xcd/0x170 [ 986.606516][ T253] do_syscall_64+0xc6/0x1e0 [ 986.606516][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 986.606516][ T253] [ 986.608269][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 986.608269][ T253] neigh_parms_alloc+0x1e5/0x510 [ 986.608269][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 986.608269][ T253] ipv6_find_idev+0x102/0x170 [ 986.608269][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 986.608269][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 986.608269][ T253] netlink_rcv_skb+0x130/0x360 [ 986.608269][ T253] netlink_unicast+0x449/0x710 [ 986.608269][ T253] netlink_sendmsg+0x723/0xbe0 [ 986.608269][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 986.608269][ T253] ___sys_sendmsg+0xee/0x170 [ 986.608269][ T253] __sys_sendmsg+0xcd/0x170 [ 986.608269][ T253] do_syscall_64+0xc6/0x1e0 [ 986.608269][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 986.608269][ T253] [ 996.690403][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 996.690960][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 996.690960][ T253] dst_init+0x84/0x4a0 [ 996.690960][ T253] dst_alloc+0x97/0x150 [ 996.690960][ T253] ip6_dst_alloc+0x23/0x90 [ 996.690960][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 996.690960][ T253] ip6_pol_route+0x56f/0x840 [ 996.690960][ T253] fib6_rule_lookup+0x334/0x630 [ 996.690960][ T253] ip6_route_output_flags+0x259/0x480 [ 996.690960][ T253] inet6_rtm_getroute+0x980/0xf70 [ 996.690960][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 996.690960][ T253] netlink_rcv_skb+0x130/0x360 [ 996.690960][ T253] netlink_unicast+0x449/0x710 [ 996.690960][ T253] netlink_sendmsg+0x723/0xbe0 [ 996.690960][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 996.690960][ T253] ___sys_sendmsg+0xee/0x170 [ 996.690960][ T253] __sys_sendmsg+0xcd/0x170 [ 996.690960][ T253] do_syscall_64+0xc6/0x1e0 [ 996.690960][ T253] [ 996.693184][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 996.693184][ T253] netdev_get_by_index+0x5e/0x80 [ 996.693184][ T253] fib6_nh_init+0x3d8/0x1580 [ 996.693184][ T253] ip6_route_info_create+0xf18/0x17d0 [ 996.693184][ T253] addrconf_f6i_alloc+0x265/0x560 [ 996.693184][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 996.693184][ T253] addrconf_join_anycast+0x1c0/0x220 [ 996.693184][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 996.693184][ T253] addrconf_dad_completed+0x12b/0xe20 [ 996.693184][ T253] addrconf_dad_begin+0x310/0x670 [ 996.693184][ T253] addrconf_dad_work+0x10b/0xab0 [ 996.693184][ T253] process_one_work+0x84d/0x18a0 [ 996.693184][ T253] worker_thread+0x587/0xd30 [ 996.693184][ T253] kthread+0x28a/0x350 [ 996.693184][ T253] ret_from_fork+0x31/0x70 [ 996.693184][ T253] ret_from_fork_asm+0x1a/0x30 [ 996.693184][ T253] [ 996.695355][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 996.695355][ T253] netdev_get_by_index+0x5e/0x80 [ 996.695355][ T253] fib6_nh_init+0x3d8/0x1580 [ 996.695355][ T253] ip6_route_info_create+0xf18/0x17d0 [ 996.695355][ T253] ip6_route_add+0x1c/0x140 [ 996.695355][ T253] addrconf_prefix_route+0x2a6/0x430 [ 996.695355][ T253] inet6_addr_add+0x4f8/0xa40 [ 996.695355][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 996.695355][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 996.695355][ T253] netlink_rcv_skb+0x130/0x360 [ 996.695355][ T253] netlink_unicast+0x449/0x710 [ 996.695355][ T253] netlink_sendmsg+0x723/0xbe0 [ 996.695355][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 996.695355][ T253] ___sys_sendmsg+0xee/0x170 [ 996.695355][ T253] __sys_sendmsg+0xcd/0x170 [ 996.695355][ T253] do_syscall_64+0xc6/0x1e0 [ 996.695355][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 996.695355][ T253] [ 996.697621][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 996.697621][ T253] netdev_get_by_index+0x5e/0x80 [ 996.697621][ T253] fib6_nh_init+0x3d8/0x1580 [ 996.697621][ T253] ip6_route_info_create+0xf18/0x17d0 [ 996.697621][ T253] addrconf_f6i_alloc+0x315/0x560 [ 996.697621][ T253] ipv6_add_addr+0x411/0x2000 [ 996.697621][ T253] inet6_addr_add+0x30e/0xa40 [ 996.697621][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 996.697621][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 996.697621][ T253] netlink_rcv_skb+0x130/0x360 [ 996.697621][ T253] netlink_unicast+0x449/0x710 [ 996.697621][ T253] netlink_sendmsg+0x723/0xbe0 [ 996.697621][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 996.697621][ T253] ___sys_sendmsg+0xee/0x170 [ 996.697621][ T253] __sys_sendmsg+0xcd/0x170 [ 996.697621][ T253] do_syscall_64+0xc6/0x1e0 [ 996.697621][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 996.697621][ T253] [ 996.699880][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 996.699880][ T253] netdev_get_by_index+0x5e/0x80 [ 996.699880][ T253] fib6_nh_init+0x3d8/0x1580 [ 996.699880][ T253] ip6_route_info_create+0xf18/0x17d0 [ 996.699880][ T253] ip6_route_add+0x1c/0x140 [ 996.699880][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 996.699880][ T253] addrconf_add_dev+0xe2/0x170 [ 996.699880][ T253] inet6_addr_add+0x12f/0xa40 [ 996.699880][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 996.699880][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 996.699880][ T253] netlink_rcv_skb+0x130/0x360 [ 996.699880][ T253] netlink_unicast+0x449/0x710 [ 996.699880][ T253] netlink_sendmsg+0x723/0xbe0 [ 996.699880][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 996.699880][ T253] ___sys_sendmsg+0xee/0x170 [ 996.699880][ T253] __sys_sendmsg+0xcd/0x170 [ 996.699880][ T253] do_syscall_64+0xc6/0x1e0 [ 996.699880][ T253] [ 996.702099][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 996.702099][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 996.702099][ T253] ipv6_find_idev+0x102/0x170 [ 996.702099][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 996.702099][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 996.702099][ T253] netlink_rcv_skb+0x130/0x360 [ 996.702099][ T253] netlink_unicast+0x449/0x710 [ 996.702099][ T253] netlink_sendmsg+0x723/0xbe0 [ 996.702099][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 996.702099][ T253] ___sys_sendmsg+0xee/0x170 [ 996.702099][ T253] __sys_sendmsg+0xcd/0x170 [ 996.702099][ T253] do_syscall_64+0xc6/0x1e0 [ 996.702099][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 996.702099][ T253] [ 996.703853][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 996.703853][ T253] neigh_parms_alloc+0x1e5/0x510 [ 996.703853][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 996.703853][ T253] ipv6_find_idev+0x102/0x170 [ 996.703853][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 996.703853][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 996.703853][ T253] netlink_rcv_skb+0x130/0x360 [ 996.703853][ T253] netlink_unicast+0x449/0x710 [ 996.703853][ T253] netlink_sendmsg+0x723/0xbe0 [ 996.703853][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 996.703853][ T253] ___sys_sendmsg+0xee/0x170 [ 996.703853][ T253] __sys_sendmsg+0xcd/0x170 [ 996.703853][ T253] do_syscall_64+0xc6/0x1e0 [ 996.703853][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 996.703853][ T253] [ 1006.946313][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1006.946784][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1006.946784][ T253] dst_init+0x84/0x4a0 [ 1006.946784][ T253] dst_alloc+0x97/0x150 [ 1006.946784][ T253] ip6_dst_alloc+0x23/0x90 [ 1006.946784][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1006.946784][ T253] ip6_pol_route+0x56f/0x840 [ 1006.946784][ T253] fib6_rule_lookup+0x334/0x630 [ 1006.946784][ T253] ip6_route_output_flags+0x259/0x480 [ 1006.946784][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1006.946784][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1006.946784][ T253] netlink_rcv_skb+0x130/0x360 [ 1006.946784][ T253] netlink_unicast+0x449/0x710 [ 1006.946784][ T253] netlink_sendmsg+0x723/0xbe0 [ 1006.946784][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1006.946784][ T253] ___sys_sendmsg+0xee/0x170 [ 1006.946784][ T253] __sys_sendmsg+0xcd/0x170 [ 1006.946784][ T253] do_syscall_64+0xc6/0x1e0 [ 1006.946784][ T253] [ 1006.949000][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1006.949000][ T253] netdev_get_by_index+0x5e/0x80 [ 1006.949000][ T253] fib6_nh_init+0x3d8/0x1580 [ 1006.949000][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1006.949000][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1006.949000][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1006.949000][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1006.949000][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1006.949000][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1006.949000][ T253] addrconf_dad_begin+0x310/0x670 [ 1006.949000][ T253] addrconf_dad_work+0x10b/0xab0 [ 1006.949000][ T253] process_one_work+0x84d/0x18a0 [ 1006.949000][ T253] worker_thread+0x587/0xd30 [ 1006.949000][ T253] kthread+0x28a/0x350 [ 1006.949000][ T253] ret_from_fork+0x31/0x70 [ 1006.949000][ T253] ret_from_fork_asm+0x1a/0x30 [ 1006.949000][ T253] [ 1006.951199][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1006.951199][ T253] netdev_get_by_index+0x5e/0x80 [ 1006.951199][ T253] fib6_nh_init+0x3d8/0x1580 [ 1006.951199][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1006.951199][ T253] ip6_route_add+0x1c/0x140 [ 1006.951199][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1006.951199][ T253] inet6_addr_add+0x4f8/0xa40 [ 1006.951199][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1006.951199][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1006.951199][ T253] netlink_rcv_skb+0x130/0x360 [ 1006.951199][ T253] netlink_unicast+0x449/0x710 [ 1006.951199][ T253] netlink_sendmsg+0x723/0xbe0 [ 1006.951199][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1006.951199][ T253] ___sys_sendmsg+0xee/0x170 [ 1006.951199][ T253] __sys_sendmsg+0xcd/0x170 [ 1006.951199][ T253] do_syscall_64+0xc6/0x1e0 [ 1006.951199][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1006.951199][ T253] [ 1006.953469][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1006.953469][ T253] netdev_get_by_index+0x5e/0x80 [ 1006.953469][ T253] fib6_nh_init+0x3d8/0x1580 [ 1006.953469][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1006.953469][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1006.953469][ T253] ipv6_add_addr+0x411/0x2000 [ 1006.953469][ T253] inet6_addr_add+0x30e/0xa40 [ 1006.953469][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1006.953469][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1006.953469][ T253] netlink_rcv_skb+0x130/0x360 [ 1006.953469][ T253] netlink_unicast+0x449/0x710 [ 1006.953469][ T253] netlink_sendmsg+0x723/0xbe0 [ 1006.953469][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1006.953469][ T253] ___sys_sendmsg+0xee/0x170 [ 1006.953469][ T253] __sys_sendmsg+0xcd/0x170 [ 1006.953469][ T253] do_syscall_64+0xc6/0x1e0 [ 1006.953469][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1006.953469][ T253] [ 1006.955855][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1006.955855][ T253] netdev_get_by_index+0x5e/0x80 [ 1006.955855][ T253] fib6_nh_init+0x3d8/0x1580 [ 1006.955855][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1006.955855][ T253] ip6_route_add+0x1c/0x140 [ 1006.955855][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1006.955855][ T253] addrconf_add_dev+0xe2/0x170 [ 1006.955855][ T253] inet6_addr_add+0x12f/0xa40 [ 1006.955855][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1006.955855][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1006.955855][ T253] netlink_rcv_skb+0x130/0x360 [ 1006.955855][ T253] netlink_unicast+0x449/0x710 [ 1006.955855][ T253] netlink_sendmsg+0x723/0xbe0 [ 1006.955855][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1006.955855][ T253] ___sys_sendmsg+0xee/0x170 [ 1006.955855][ T253] __sys_sendmsg+0xcd/0x170 [ 1006.955855][ T253] do_syscall_64+0xc6/0x1e0 [ 1006.955855][ T253] [ 1006.958236][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1006.958236][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1006.958236][ T253] ipv6_find_idev+0x102/0x170 [ 1006.958236][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1006.958236][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1006.958236][ T253] netlink_rcv_skb+0x130/0x360 [ 1006.958236][ T253] netlink_unicast+0x449/0x710 [ 1006.958236][ T253] netlink_sendmsg+0x723/0xbe0 [ 1006.958236][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1006.958236][ T253] ___sys_sendmsg+0xee/0x170 [ 1006.958236][ T253] __sys_sendmsg+0xcd/0x170 [ 1006.958236][ T253] do_syscall_64+0xc6/0x1e0 [ 1006.958236][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1006.958236][ T253] [ 1006.959974][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1006.959974][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1006.959974][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1006.959974][ T253] ipv6_find_idev+0x102/0x170 [ 1006.959974][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1006.959974][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1006.959974][ T253] netlink_rcv_skb+0x130/0x360 [ 1006.959974][ T253] netlink_unicast+0x449/0x710 [ 1006.959974][ T253] netlink_sendmsg+0x723/0xbe0 [ 1006.959974][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1006.959974][ T253] ___sys_sendmsg+0xee/0x170 [ 1006.959974][ T253] __sys_sendmsg+0xcd/0x170 [ 1006.959974][ T253] do_syscall_64+0xc6/0x1e0 [ 1006.959974][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1006.959974][ T253] [ 1017.210333][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1017.210859][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1017.210859][ T253] dst_init+0x84/0x4a0 [ 1017.210859][ T253] dst_alloc+0x97/0x150 [ 1017.210859][ T253] ip6_dst_alloc+0x23/0x90 [ 1017.210859][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1017.210859][ T253] ip6_pol_route+0x56f/0x840 [ 1017.210859][ T253] fib6_rule_lookup+0x334/0x630 [ 1017.210859][ T253] ip6_route_output_flags+0x259/0x480 [ 1017.210859][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1017.210859][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1017.210859][ T253] netlink_rcv_skb+0x130/0x360 [ 1017.210859][ T253] netlink_unicast+0x449/0x710 [ 1017.210859][ T253] netlink_sendmsg+0x723/0xbe0 [ 1017.210859][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1017.210859][ T253] ___sys_sendmsg+0xee/0x170 [ 1017.210859][ T253] __sys_sendmsg+0xcd/0x170 [ 1017.210859][ T253] do_syscall_64+0xc6/0x1e0 [ 1017.210859][ T253] [ 1017.213085][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1017.213085][ T253] netdev_get_by_index+0x5e/0x80 [ 1017.213085][ T253] fib6_nh_init+0x3d8/0x1580 [ 1017.213085][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1017.213085][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1017.213085][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1017.213085][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1017.213085][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1017.213085][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1017.213085][ T253] addrconf_dad_begin+0x310/0x670 [ 1017.213085][ T253] addrconf_dad_work+0x10b/0xab0 [ 1017.213085][ T253] process_one_work+0x84d/0x18a0 [ 1017.213085][ T253] worker_thread+0x587/0xd30 [ 1017.213085][ T253] kthread+0x28a/0x350 [ 1017.213085][ T253] ret_from_fork+0x31/0x70 [ 1017.213085][ T253] ret_from_fork_asm+0x1a/0x30 [ 1017.213085][ T253] [ 1017.215251][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1017.215251][ T253] netdev_get_by_index+0x5e/0x80 [ 1017.215251][ T253] fib6_nh_init+0x3d8/0x1580 [ 1017.215251][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1017.215251][ T253] ip6_route_add+0x1c/0x140 [ 1017.215251][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1017.215251][ T253] inet6_addr_add+0x4f8/0xa40 [ 1017.215251][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1017.215251][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1017.215251][ T253] netlink_rcv_skb+0x130/0x360 [ 1017.215251][ T253] netlink_unicast+0x449/0x710 [ 1017.215251][ T253] netlink_sendmsg+0x723/0xbe0 [ 1017.215251][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1017.215251][ T253] ___sys_sendmsg+0xee/0x170 [ 1017.215251][ T253] __sys_sendmsg+0xcd/0x170 [ 1017.215251][ T253] do_syscall_64+0xc6/0x1e0 [ 1017.215251][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1017.215251][ T253] [ 1017.217515][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1017.217515][ T253] netdev_get_by_index+0x5e/0x80 [ 1017.217515][ T253] fib6_nh_init+0x3d8/0x1580 [ 1017.217515][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1017.217515][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1017.217515][ T253] ipv6_add_addr+0x411/0x2000 [ 1017.217515][ T253] inet6_addr_add+0x30e/0xa40 [ 1017.217515][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1017.217515][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1017.217515][ T253] netlink_rcv_skb+0x130/0x360 [ 1017.217515][ T253] netlink_unicast+0x449/0x710 [ 1017.217515][ T253] netlink_sendmsg+0x723/0xbe0 [ 1017.217515][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1017.217515][ T253] ___sys_sendmsg+0xee/0x170 [ 1017.217515][ T253] __sys_sendmsg+0xcd/0x170 [ 1017.217515][ T253] do_syscall_64+0xc6/0x1e0 [ 1017.217515][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1017.217515][ T253] [ 1017.219761][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1017.219761][ T253] netdev_get_by_index+0x5e/0x80 [ 1017.219761][ T253] fib6_nh_init+0x3d8/0x1580 [ 1017.219761][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1017.219761][ T253] ip6_route_add+0x1c/0x140 [ 1017.219761][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1017.219761][ T253] addrconf_add_dev+0xe2/0x170 [ 1017.219761][ T253] inet6_addr_add+0x12f/0xa40 [ 1017.219761][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1017.219761][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1017.219761][ T253] netlink_rcv_skb+0x130/0x360 [ 1017.219761][ T253] netlink_unicast+0x449/0x710 [ 1017.219761][ T253] netlink_sendmsg+0x723/0xbe0 [ 1017.219761][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1017.219761][ T253] ___sys_sendmsg+0xee/0x170 [ 1017.219761][ T253] __sys_sendmsg+0xcd/0x170 [ 1017.219761][ T253] do_syscall_64+0xc6/0x1e0 [ 1017.219761][ T253] [ 1017.222082][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1017.222082][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1017.222082][ T253] ipv6_find_idev+0x102/0x170 [ 1017.222082][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1017.222082][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1017.222082][ T253] netlink_rcv_skb+0x130/0x360 [ 1017.222082][ T253] netlink_unicast+0x449/0x710 [ 1017.222082][ T253] netlink_sendmsg+0x723/0xbe0 [ 1017.222082][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1017.222082][ T253] ___sys_sendmsg+0xee/0x170 [ 1017.222082][ T253] __sys_sendmsg+0xcd/0x170 [ 1017.222082][ T253] do_syscall_64+0xc6/0x1e0 [ 1017.222082][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1017.222082][ T253] [ 1017.223834][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1017.223834][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1017.223834][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1017.223834][ T253] ipv6_find_idev+0x102/0x170 [ 1017.223834][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1017.223834][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1017.223834][ T253] netlink_rcv_skb+0x130/0x360 [ 1017.223834][ T253] netlink_unicast+0x449/0x710 [ 1017.223834][ T253] netlink_sendmsg+0x723/0xbe0 [ 1017.223834][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1017.223834][ T253] ___sys_sendmsg+0xee/0x170 [ 1017.223834][ T253] __sys_sendmsg+0xcd/0x170 [ 1017.223834][ T253] do_syscall_64+0xc6/0x1e0 [ 1017.223834][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1017.223834][ T253] [ 1027.258301][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1027.258762][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1027.258762][ T253] dst_init+0x84/0x4a0 [ 1027.258762][ T253] dst_alloc+0x97/0x150 [ 1027.258762][ T253] ip6_dst_alloc+0x23/0x90 [ 1027.258762][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1027.258762][ T253] ip6_pol_route+0x56f/0x840 [ 1027.258762][ T253] fib6_rule_lookup+0x334/0x630 [ 1027.258762][ T253] ip6_route_output_flags+0x259/0x480 [ 1027.258762][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1027.258762][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1027.258762][ T253] netlink_rcv_skb+0x130/0x360 [ 1027.258762][ T253] netlink_unicast+0x449/0x710 [ 1027.258762][ T253] netlink_sendmsg+0x723/0xbe0 [ 1027.258762][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1027.258762][ T253] ___sys_sendmsg+0xee/0x170 [ 1027.258762][ T253] __sys_sendmsg+0xcd/0x170 [ 1027.258762][ T253] do_syscall_64+0xc6/0x1e0 [ 1027.258762][ T253] [ 1027.260981][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1027.260981][ T253] netdev_get_by_index+0x5e/0x80 [ 1027.260981][ T253] fib6_nh_init+0x3d8/0x1580 [ 1027.260981][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1027.260981][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1027.260981][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1027.260981][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1027.260981][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1027.260981][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1027.260981][ T253] addrconf_dad_begin+0x310/0x670 [ 1027.260981][ T253] addrconf_dad_work+0x10b/0xab0 [ 1027.260981][ T253] process_one_work+0x84d/0x18a0 [ 1027.260981][ T253] worker_thread+0x587/0xd30 [ 1027.260981][ T253] kthread+0x28a/0x350 [ 1027.260981][ T253] ret_from_fork+0x31/0x70 [ 1027.260981][ T253] ret_from_fork_asm+0x1a/0x30 [ 1027.260981][ T253] [ 1027.263151][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1027.263151][ T253] netdev_get_by_index+0x5e/0x80 [ 1027.263151][ T253] fib6_nh_init+0x3d8/0x1580 [ 1027.263151][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1027.263151][ T253] ip6_route_add+0x1c/0x140 [ 1027.263151][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1027.263151][ T253] inet6_addr_add+0x4f8/0xa40 [ 1027.263151][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1027.263151][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1027.263151][ T253] netlink_rcv_skb+0x130/0x360 [ 1027.263151][ T253] netlink_unicast+0x449/0x710 [ 1027.263151][ T253] netlink_sendmsg+0x723/0xbe0 [ 1027.263151][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1027.263151][ T253] ___sys_sendmsg+0xee/0x170 [ 1027.263151][ T253] __sys_sendmsg+0xcd/0x170 [ 1027.263151][ T253] do_syscall_64+0xc6/0x1e0 [ 1027.263151][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1027.263151][ T253] [ 1027.265417][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1027.265417][ T253] netdev_get_by_index+0x5e/0x80 [ 1027.265417][ T253] fib6_nh_init+0x3d8/0x1580 [ 1027.265417][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1027.265417][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1027.265417][ T253] ipv6_add_addr+0x411/0x2000 [ 1027.265417][ T253] inet6_addr_add+0x30e/0xa40 [ 1027.265417][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1027.265417][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1027.265417][ T253] netlink_rcv_skb+0x130/0x360 [ 1027.265417][ T253] netlink_unicast+0x449/0x710 [ 1027.265417][ T253] netlink_sendmsg+0x723/0xbe0 [ 1027.265417][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1027.265417][ T253] ___sys_sendmsg+0xee/0x170 [ 1027.265417][ T253] __sys_sendmsg+0xcd/0x170 [ 1027.265417][ T253] do_syscall_64+0xc6/0x1e0 [ 1027.265417][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1027.265417][ T253] [ 1027.267674][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1027.267674][ T253] netdev_get_by_index+0x5e/0x80 [ 1027.267674][ T253] fib6_nh_init+0x3d8/0x1580 [ 1027.267674][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1027.267674][ T253] ip6_route_add+0x1c/0x140 [ 1027.267674][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1027.267674][ T253] addrconf_add_dev+0xe2/0x170 [ 1027.267674][ T253] inet6_addr_add+0x12f/0xa40 [ 1027.267674][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1027.267674][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1027.267674][ T253] netlink_rcv_skb+0x130/0x360 [ 1027.267674][ T253] netlink_unicast+0x449/0x710 [ 1027.267674][ T253] netlink_sendmsg+0x723/0xbe0 [ 1027.267674][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1027.267674][ T253] ___sys_sendmsg+0xee/0x170 [ 1027.267674][ T253] __sys_sendmsg+0xcd/0x170 [ 1027.267674][ T253] do_syscall_64+0xc6/0x1e0 [ 1027.267674][ T253] [ 1027.269908][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1027.269908][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1027.269908][ T253] ipv6_find_idev+0x102/0x170 [ 1027.269908][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1027.269908][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1027.269908][ T253] netlink_rcv_skb+0x130/0x360 [ 1027.269908][ T253] netlink_unicast+0x449/0x710 [ 1027.269908][ T253] netlink_sendmsg+0x723/0xbe0 [ 1027.269908][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1027.269908][ T253] ___sys_sendmsg+0xee/0x170 [ 1027.269908][ T253] __sys_sendmsg+0xcd/0x170 [ 1027.269908][ T253] do_syscall_64+0xc6/0x1e0 [ 1027.269908][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1027.269908][ T253] [ 1027.271647][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1027.271647][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1027.271647][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1027.271647][ T253] ipv6_find_idev+0x102/0x170 [ 1027.271647][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1027.271647][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1027.271647][ T253] netlink_rcv_skb+0x130/0x360 [ 1027.271647][ T253] netlink_unicast+0x449/0x710 [ 1027.271647][ T253] netlink_sendmsg+0x723/0xbe0 [ 1027.271647][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1027.271647][ T253] ___sys_sendmsg+0xee/0x170 [ 1027.271647][ T253] __sys_sendmsg+0xcd/0x170 [ 1027.271647][ T253] do_syscall_64+0xc6/0x1e0 [ 1027.271647][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1027.271647][ T253] [ 1037.378290][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1037.378857][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1037.378857][ T253] dst_init+0x84/0x4a0 [ 1037.378857][ T253] dst_alloc+0x97/0x150 [ 1037.378857][ T253] ip6_dst_alloc+0x23/0x90 [ 1037.378857][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1037.378857][ T253] ip6_pol_route+0x56f/0x840 [ 1037.378857][ T253] fib6_rule_lookup+0x334/0x630 [ 1037.378857][ T253] ip6_route_output_flags+0x259/0x480 [ 1037.378857][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1037.378857][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1037.378857][ T253] netlink_rcv_skb+0x130/0x360 [ 1037.378857][ T253] netlink_unicast+0x449/0x710 [ 1037.378857][ T253] netlink_sendmsg+0x723/0xbe0 [ 1037.378857][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1037.378857][ T253] ___sys_sendmsg+0xee/0x170 [ 1037.378857][ T253] __sys_sendmsg+0xcd/0x170 [ 1037.378857][ T253] do_syscall_64+0xc6/0x1e0 [ 1037.378857][ T253] [ 1037.381074][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1037.381074][ T253] netdev_get_by_index+0x5e/0x80 [ 1037.381074][ T253] fib6_nh_init+0x3d8/0x1580 [ 1037.381074][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1037.381074][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1037.381074][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1037.381074][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1037.381074][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1037.381074][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1037.381074][ T253] addrconf_dad_begin+0x310/0x670 [ 1037.381074][ T253] addrconf_dad_work+0x10b/0xab0 [ 1037.381074][ T253] process_one_work+0x84d/0x18a0 [ 1037.381074][ T253] worker_thread+0x587/0xd30 [ 1037.381074][ T253] kthread+0x28a/0x350 [ 1037.381074][ T253] ret_from_fork+0x31/0x70 [ 1037.381074][ T253] ret_from_fork_asm+0x1a/0x30 [ 1037.381074][ T253] [ 1037.383223][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1037.383223][ T253] netdev_get_by_index+0x5e/0x80 [ 1037.383223][ T253] fib6_nh_init+0x3d8/0x1580 [ 1037.383223][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1037.383223][ T253] ip6_route_add+0x1c/0x140 [ 1037.383223][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1037.383223][ T253] inet6_addr_add+0x4f8/0xa40 [ 1037.383223][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1037.383223][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1037.383223][ T253] netlink_rcv_skb+0x130/0x360 [ 1037.383223][ T253] netlink_unicast+0x449/0x710 [ 1037.383223][ T253] netlink_sendmsg+0x723/0xbe0 [ 1037.383223][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1037.383223][ T253] ___sys_sendmsg+0xee/0x170 [ 1037.383223][ T253] __sys_sendmsg+0xcd/0x170 [ 1037.383223][ T253] do_syscall_64+0xc6/0x1e0 [ 1037.383223][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1037.383223][ T253] [ 1037.385497][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1037.385497][ T253] netdev_get_by_index+0x5e/0x80 [ 1037.385497][ T253] fib6_nh_init+0x3d8/0x1580 [ 1037.385497][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1037.385497][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1037.385497][ T253] ipv6_add_addr+0x411/0x2000 [ 1037.385497][ T253] inet6_addr_add+0x30e/0xa40 [ 1037.385497][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1037.385497][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1037.385497][ T253] netlink_rcv_skb+0x130/0x360 [ 1037.385497][ T253] netlink_unicast+0x449/0x710 [ 1037.385497][ T253] netlink_sendmsg+0x723/0xbe0 [ 1037.385497][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1037.385497][ T253] ___sys_sendmsg+0xee/0x170 [ 1037.385497][ T253] __sys_sendmsg+0xcd/0x170 [ 1037.385497][ T253] do_syscall_64+0xc6/0x1e0 [ 1037.385497][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1037.385497][ T253] [ 1037.387744][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1037.387744][ T253] netdev_get_by_index+0x5e/0x80 [ 1037.387744][ T253] fib6_nh_init+0x3d8/0x1580 [ 1037.387744][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1037.387744][ T253] ip6_route_add+0x1c/0x140 [ 1037.387744][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1037.387744][ T253] addrconf_add_dev+0xe2/0x170 [ 1037.387744][ T253] inet6_addr_add+0x12f/0xa40 [ 1037.387744][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1037.387744][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1037.387744][ T253] netlink_rcv_skb+0x130/0x360 [ 1037.387744][ T253] netlink_unicast+0x449/0x710 [ 1037.387744][ T253] netlink_sendmsg+0x723/0xbe0 [ 1037.387744][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1037.387744][ T253] ___sys_sendmsg+0xee/0x170 [ 1037.387744][ T253] __sys_sendmsg+0xcd/0x170 [ 1037.387744][ T253] do_syscall_64+0xc6/0x1e0 [ 1037.387744][ T253] [ 1037.390509][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1037.390509][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1037.390509][ T253] ipv6_find_idev+0x102/0x170 [ 1037.390509][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1037.390509][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1037.390509][ T253] netlink_rcv_skb+0x130/0x360 [ 1037.390509][ T253] netlink_unicast+0x449/0x710 [ 1037.390509][ T253] netlink_sendmsg+0x723/0xbe0 [ 1037.390509][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1037.390509][ T253] ___sys_sendmsg+0xee/0x170 [ 1037.390509][ T253] __sys_sendmsg+0xcd/0x170 [ 1037.390509][ T253] do_syscall_64+0xc6/0x1e0 [ 1037.390509][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1037.390509][ T253] [ 1037.392239][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1037.392239][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1037.392239][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1037.392239][ T253] ipv6_find_idev+0x102/0x170 [ 1037.392239][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1037.392239][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1037.392239][ T253] netlink_rcv_skb+0x130/0x360 [ 1037.392239][ T253] netlink_unicast+0x449/0x710 [ 1037.392239][ T253] netlink_sendmsg+0x723/0xbe0 [ 1037.392239][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1037.392239][ T253] ___sys_sendmsg+0xee/0x170 [ 1037.392239][ T253] __sys_sendmsg+0xcd/0x170 [ 1037.392239][ T253] do_syscall_64+0xc6/0x1e0 [ 1037.392239][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1037.392239][ T253] [ 1047.506295][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1047.506766][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1047.506766][ T253] dst_init+0x84/0x4a0 [ 1047.506766][ T253] dst_alloc+0x97/0x150 [ 1047.506766][ T253] ip6_dst_alloc+0x23/0x90 [ 1047.506766][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1047.506766][ T253] ip6_pol_route+0x56f/0x840 [ 1047.506766][ T253] fib6_rule_lookup+0x334/0x630 [ 1047.506766][ T253] ip6_route_output_flags+0x259/0x480 [ 1047.506766][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1047.506766][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1047.506766][ T253] netlink_rcv_skb+0x130/0x360 [ 1047.506766][ T253] netlink_unicast+0x449/0x710 [ 1047.506766][ T253] netlink_sendmsg+0x723/0xbe0 [ 1047.506766][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1047.506766][ T253] ___sys_sendmsg+0xee/0x170 [ 1047.506766][ T253] __sys_sendmsg+0xcd/0x170 [ 1047.506766][ T253] do_syscall_64+0xc6/0x1e0 [ 1047.506766][ T253] [ 1047.508969][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1047.508969][ T253] netdev_get_by_index+0x5e/0x80 [ 1047.508969][ T253] fib6_nh_init+0x3d8/0x1580 [ 1047.508969][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1047.508969][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1047.508969][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1047.508969][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1047.508969][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1047.508969][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1047.508969][ T253] addrconf_dad_begin+0x310/0x670 [ 1047.508969][ T253] addrconf_dad_work+0x10b/0xab0 [ 1047.508969][ T253] process_one_work+0x84d/0x18a0 [ 1047.508969][ T253] worker_thread+0x587/0xd30 [ 1047.508969][ T253] kthread+0x28a/0x350 [ 1047.508969][ T253] ret_from_fork+0x31/0x70 [ 1047.508969][ T253] ret_from_fork_asm+0x1a/0x30 [ 1047.508969][ T253] [ 1047.511123][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1047.511123][ T253] netdev_get_by_index+0x5e/0x80 [ 1047.511123][ T253] fib6_nh_init+0x3d8/0x1580 [ 1047.511123][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1047.511123][ T253] ip6_route_add+0x1c/0x140 [ 1047.511123][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1047.511123][ T253] inet6_addr_add+0x4f8/0xa40 [ 1047.511123][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1047.511123][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1047.511123][ T253] netlink_rcv_skb+0x130/0x360 [ 1047.511123][ T253] netlink_unicast+0x449/0x710 [ 1047.511123][ T253] netlink_sendmsg+0x723/0xbe0 [ 1047.511123][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1047.511123][ T253] ___sys_sendmsg+0xee/0x170 [ 1047.511123][ T253] __sys_sendmsg+0xcd/0x170 [ 1047.511123][ T253] do_syscall_64+0xc6/0x1e0 [ 1047.511123][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1047.511123][ T253] [ 1047.513361][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1047.513361][ T253] netdev_get_by_index+0x5e/0x80 [ 1047.513361][ T253] fib6_nh_init+0x3d8/0x1580 [ 1047.513361][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1047.513361][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1047.513361][ T253] ipv6_add_addr+0x411/0x2000 [ 1047.513361][ T253] inet6_addr_add+0x30e/0xa40 [ 1047.513361][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1047.513361][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1047.513361][ T253] netlink_rcv_skb+0x130/0x360 [ 1047.513361][ T253] netlink_unicast+0x449/0x710 [ 1047.513361][ T253] netlink_sendmsg+0x723/0xbe0 [ 1047.513361][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1047.513361][ T253] ___sys_sendmsg+0xee/0x170 [ 1047.513361][ T253] __sys_sendmsg+0xcd/0x170 [ 1047.513361][ T253] do_syscall_64+0xc6/0x1e0 [ 1047.513361][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1047.513361][ T253] [ 1047.515615][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1047.515615][ T253] netdev_get_by_index+0x5e/0x80 [ 1047.515615][ T253] fib6_nh_init+0x3d8/0x1580 [ 1047.515615][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1047.515615][ T253] ip6_route_add+0x1c/0x140 [ 1047.515615][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1047.515615][ T253] addrconf_add_dev+0xe2/0x170 [ 1047.515615][ T253] inet6_addr_add+0x12f/0xa40 [ 1047.515615][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1047.515615][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1047.515615][ T253] netlink_rcv_skb+0x130/0x360 [ 1047.515615][ T253] netlink_unicast+0x449/0x710 [ 1047.515615][ T253] netlink_sendmsg+0x723/0xbe0 [ 1047.515615][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1047.515615][ T253] ___sys_sendmsg+0xee/0x170 [ 1047.515615][ T253] __sys_sendmsg+0xcd/0x170 [ 1047.515615][ T253] do_syscall_64+0xc6/0x1e0 [ 1047.515615][ T253] [ 1047.517815][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1047.517815][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1047.517815][ T253] ipv6_find_idev+0x102/0x170 [ 1047.517815][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1047.517815][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1047.517815][ T253] netlink_rcv_skb+0x130/0x360 [ 1047.517815][ T253] netlink_unicast+0x449/0x710 [ 1047.517815][ T253] netlink_sendmsg+0x723/0xbe0 [ 1047.517815][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1047.517815][ T253] ___sys_sendmsg+0xee/0x170 [ 1047.517815][ T253] __sys_sendmsg+0xcd/0x170 [ 1047.517815][ T253] do_syscall_64+0xc6/0x1e0 [ 1047.517815][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1047.517815][ T253] [ 1047.519540][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1047.519540][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1047.519540][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1047.519540][ T253] ipv6_find_idev+0x102/0x170 [ 1047.519540][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1047.519540][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1047.519540][ T253] netlink_rcv_skb+0x130/0x360 [ 1047.519540][ T253] netlink_unicast+0x449/0x710 [ 1047.519540][ T253] netlink_sendmsg+0x723/0xbe0 [ 1047.519540][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1047.519540][ T253] ___sys_sendmsg+0xee/0x170 [ 1047.519540][ T253] __sys_sendmsg+0xcd/0x170 [ 1047.519540][ T253] do_syscall_64+0xc6/0x1e0 [ 1047.519540][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1047.519540][ T253] [ 1057.762379][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1057.762964][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1057.762964][ T253] dst_init+0x84/0x4a0 [ 1057.762964][ T253] dst_alloc+0x97/0x150 [ 1057.762964][ T253] ip6_dst_alloc+0x23/0x90 [ 1057.762964][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1057.762964][ T253] ip6_pol_route+0x56f/0x840 [ 1057.762964][ T253] fib6_rule_lookup+0x334/0x630 [ 1057.762964][ T253] ip6_route_output_flags+0x259/0x480 [ 1057.762964][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1057.762964][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1057.762964][ T253] netlink_rcv_skb+0x130/0x360 [ 1057.762964][ T253] netlink_unicast+0x449/0x710 [ 1057.762964][ T253] netlink_sendmsg+0x723/0xbe0 [ 1057.762964][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1057.762964][ T253] ___sys_sendmsg+0xee/0x170 [ 1057.762964][ T253] __sys_sendmsg+0xcd/0x170 [ 1057.762964][ T253] do_syscall_64+0xc6/0x1e0 [ 1057.762964][ T253] [ 1057.765200][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1057.765200][ T253] netdev_get_by_index+0x5e/0x80 [ 1057.765200][ T253] fib6_nh_init+0x3d8/0x1580 [ 1057.765200][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1057.765200][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1057.765200][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1057.765200][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1057.765200][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1057.765200][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1057.765200][ T253] addrconf_dad_begin+0x310/0x670 [ 1057.765200][ T253] addrconf_dad_work+0x10b/0xab0 [ 1057.765200][ T253] process_one_work+0x84d/0x18a0 [ 1057.765200][ T253] worker_thread+0x587/0xd30 [ 1057.765200][ T253] kthread+0x28a/0x350 [ 1057.765200][ T253] ret_from_fork+0x31/0x70 [ 1057.765200][ T253] ret_from_fork_asm+0x1a/0x30 [ 1057.765200][ T253] [ 1057.767355][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1057.767355][ T253] netdev_get_by_index+0x5e/0x80 [ 1057.767355][ T253] fib6_nh_init+0x3d8/0x1580 [ 1057.767355][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1057.767355][ T253] ip6_route_add+0x1c/0x140 [ 1057.767355][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1057.767355][ T253] inet6_addr_add+0x4f8/0xa40 [ 1057.767355][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1057.767355][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1057.767355][ T253] netlink_rcv_skb+0x130/0x360 [ 1057.767355][ T253] netlink_unicast+0x449/0x710 [ 1057.767355][ T253] netlink_sendmsg+0x723/0xbe0 [ 1057.767355][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1057.767355][ T253] ___sys_sendmsg+0xee/0x170 [ 1057.767355][ T253] __sys_sendmsg+0xcd/0x170 [ 1057.767355][ T253] do_syscall_64+0xc6/0x1e0 [ 1057.767355][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1057.767355][ T253] [ 1057.769599][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1057.769599][ T253] netdev_get_by_index+0x5e/0x80 [ 1057.769599][ T253] fib6_nh_init+0x3d8/0x1580 [ 1057.769599][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1057.769599][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1057.769599][ T253] ipv6_add_addr+0x411/0x2000 [ 1057.769599][ T253] inet6_addr_add+0x30e/0xa40 [ 1057.769599][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1057.769599][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1057.769599][ T253] netlink_rcv_skb+0x130/0x360 [ 1057.769599][ T253] netlink_unicast+0x449/0x710 [ 1057.769599][ T253] netlink_sendmsg+0x723/0xbe0 [ 1057.769599][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1057.769599][ T253] ___sys_sendmsg+0xee/0x170 [ 1057.769599][ T253] __sys_sendmsg+0xcd/0x170 [ 1057.769599][ T253] do_syscall_64+0xc6/0x1e0 [ 1057.769599][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1057.769599][ T253] [ 1057.771857][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1057.771857][ T253] netdev_get_by_index+0x5e/0x80 [ 1057.771857][ T253] fib6_nh_init+0x3d8/0x1580 [ 1057.771857][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1057.771857][ T253] ip6_route_add+0x1c/0x140 [ 1057.771857][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1057.771857][ T253] addrconf_add_dev+0xe2/0x170 [ 1057.771857][ T253] inet6_addr_add+0x12f/0xa40 [ 1057.771857][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1057.771857][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1057.771857][ T253] netlink_rcv_skb+0x130/0x360 [ 1057.771857][ T253] netlink_unicast+0x449/0x710 [ 1057.771857][ T253] netlink_sendmsg+0x723/0xbe0 [ 1057.771857][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1057.771857][ T253] ___sys_sendmsg+0xee/0x170 [ 1057.771857][ T253] __sys_sendmsg+0xcd/0x170 [ 1057.771857][ T253] do_syscall_64+0xc6/0x1e0 [ 1057.771857][ T253] [ 1057.774467][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1057.774467][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1057.774467][ T253] ipv6_find_idev+0x102/0x170 [ 1057.774467][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1057.774467][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1057.774467][ T253] netlink_rcv_skb+0x130/0x360 [ 1057.774467][ T253] netlink_unicast+0x449/0x710 [ 1057.774467][ T253] netlink_sendmsg+0x723/0xbe0 [ 1057.774467][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1057.774467][ T253] ___sys_sendmsg+0xee/0x170 [ 1057.774467][ T253] __sys_sendmsg+0xcd/0x170 [ 1057.774467][ T253] do_syscall_64+0xc6/0x1e0 [ 1057.774467][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1057.774467][ T253] [ 1057.776210][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1057.776210][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1057.776210][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1057.776210][ T253] ipv6_find_idev+0x102/0x170 [ 1057.776210][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1057.776210][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1057.776210][ T253] netlink_rcv_skb+0x130/0x360 [ 1057.776210][ T253] netlink_unicast+0x449/0x710 [ 1057.776210][ T253] netlink_sendmsg+0x723/0xbe0 [ 1057.776210][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1057.776210][ T253] ___sys_sendmsg+0xee/0x170 [ 1057.776210][ T253] __sys_sendmsg+0xcd/0x170 [ 1057.776210][ T253] do_syscall_64+0xc6/0x1e0 [ 1057.776210][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1057.776210][ T253] [ 1067.874329][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1067.874863][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1067.874863][ T253] dst_init+0x84/0x4a0 [ 1067.874863][ T253] dst_alloc+0x97/0x150 [ 1067.874863][ T253] ip6_dst_alloc+0x23/0x90 [ 1067.874863][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1067.874863][ T253] ip6_pol_route+0x56f/0x840 [ 1067.874863][ T253] fib6_rule_lookup+0x334/0x630 [ 1067.874863][ T253] ip6_route_output_flags+0x259/0x480 [ 1067.874863][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1067.874863][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1067.874863][ T253] netlink_rcv_skb+0x130/0x360 [ 1067.874863][ T253] netlink_unicast+0x449/0x710 [ 1067.874863][ T253] netlink_sendmsg+0x723/0xbe0 [ 1067.874863][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1067.874863][ T253] ___sys_sendmsg+0xee/0x170 [ 1067.874863][ T253] __sys_sendmsg+0xcd/0x170 [ 1067.874863][ T253] do_syscall_64+0xc6/0x1e0 [ 1067.874863][ T253] [ 1067.877082][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1067.877082][ T253] netdev_get_by_index+0x5e/0x80 [ 1067.877082][ T253] fib6_nh_init+0x3d8/0x1580 [ 1067.877082][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1067.877082][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1067.877082][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1067.877082][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1067.877082][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1067.877082][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1067.877082][ T253] addrconf_dad_begin+0x310/0x670 [ 1067.877082][ T253] addrconf_dad_work+0x10b/0xab0 [ 1067.877082][ T253] process_one_work+0x84d/0x18a0 [ 1067.877082][ T253] worker_thread+0x587/0xd30 [ 1067.877082][ T253] kthread+0x28a/0x350 [ 1067.877082][ T253] ret_from_fork+0x31/0x70 [ 1067.877082][ T253] ret_from_fork_asm+0x1a/0x30 [ 1067.877082][ T253] [ 1067.879231][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1067.879231][ T253] netdev_get_by_index+0x5e/0x80 [ 1067.879231][ T253] fib6_nh_init+0x3d8/0x1580 [ 1067.879231][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1067.879231][ T253] ip6_route_add+0x1c/0x140 [ 1067.879231][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1067.879231][ T253] inet6_addr_add+0x4f8/0xa40 [ 1067.879231][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1067.879231][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1067.879231][ T253] netlink_rcv_skb+0x130/0x360 [ 1067.879231][ T253] netlink_unicast+0x449/0x710 [ 1067.879231][ T253] netlink_sendmsg+0x723/0xbe0 [ 1067.879231][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1067.879231][ T253] ___sys_sendmsg+0xee/0x170 [ 1067.879231][ T253] __sys_sendmsg+0xcd/0x170 [ 1067.879231][ T253] do_syscall_64+0xc6/0x1e0 [ 1067.879231][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1067.879231][ T253] [ 1067.881488][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1067.881488][ T253] netdev_get_by_index+0x5e/0x80 [ 1067.881488][ T253] fib6_nh_init+0x3d8/0x1580 [ 1067.881488][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1067.881488][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1067.881488][ T253] ipv6_add_addr+0x411/0x2000 [ 1067.881488][ T253] inet6_addr_add+0x30e/0xa40 [ 1067.881488][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1067.881488][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1067.881488][ T253] netlink_rcv_skb+0x130/0x360 [ 1067.881488][ T253] netlink_unicast+0x449/0x710 [ 1067.881488][ T253] netlink_sendmsg+0x723/0xbe0 [ 1067.881488][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1067.881488][ T253] ___sys_sendmsg+0xee/0x170 [ 1067.881488][ T253] __sys_sendmsg+0xcd/0x170 [ 1067.881488][ T253] do_syscall_64+0xc6/0x1e0 [ 1067.881488][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1067.881488][ T253] [ 1067.883742][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1067.883742][ T253] netdev_get_by_index+0x5e/0x80 [ 1067.883742][ T253] fib6_nh_init+0x3d8/0x1580 [ 1067.883742][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1067.883742][ T253] ip6_route_add+0x1c/0x140 [ 1067.883742][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1067.883742][ T253] addrconf_add_dev+0xe2/0x170 [ 1067.883742][ T253] inet6_addr_add+0x12f/0xa40 [ 1067.883742][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1067.883742][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1067.883742][ T253] netlink_rcv_skb+0x130/0x360 [ 1067.883742][ T253] netlink_unicast+0x449/0x710 [ 1067.883742][ T253] netlink_sendmsg+0x723/0xbe0 [ 1067.883742][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1067.883742][ T253] ___sys_sendmsg+0xee/0x170 [ 1067.883742][ T253] __sys_sendmsg+0xcd/0x170 [ 1067.883742][ T253] do_syscall_64+0xc6/0x1e0 [ 1067.883742][ T253] [ 1067.885965][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1067.885965][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1067.885965][ T253] ipv6_find_idev+0x102/0x170 [ 1067.885965][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1067.885965][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1067.885965][ T253] netlink_rcv_skb+0x130/0x360 [ 1067.885965][ T253] netlink_unicast+0x449/0x710 [ 1067.885965][ T253] netlink_sendmsg+0x723/0xbe0 [ 1067.885965][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1067.885965][ T253] ___sys_sendmsg+0xee/0x170 [ 1067.885965][ T253] __sys_sendmsg+0xcd/0x170 [ 1067.885965][ T253] do_syscall_64+0xc6/0x1e0 [ 1067.885965][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1067.885965][ T253] [ 1067.887706][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1067.887706][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1067.887706][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1067.887706][ T253] ipv6_find_idev+0x102/0x170 [ 1067.887706][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1067.887706][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1067.887706][ T253] netlink_rcv_skb+0x130/0x360 [ 1067.887706][ T253] netlink_unicast+0x449/0x710 [ 1067.887706][ T253] netlink_sendmsg+0x723/0xbe0 [ 1067.887706][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1067.887706][ T253] ___sys_sendmsg+0xee/0x170 [ 1067.887706][ T253] __sys_sendmsg+0xcd/0x170 [ 1067.887706][ T253] do_syscall_64+0xc6/0x1e0 [ 1067.887706][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1067.887706][ T253] [ 1078.130366][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1078.130916][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1078.130916][ T253] dst_init+0x84/0x4a0 [ 1078.130916][ T253] dst_alloc+0x97/0x150 [ 1078.130916][ T253] ip6_dst_alloc+0x23/0x90 [ 1078.130916][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1078.130916][ T253] ip6_pol_route+0x56f/0x840 [ 1078.130916][ T253] fib6_rule_lookup+0x334/0x630 [ 1078.130916][ T253] ip6_route_output_flags+0x259/0x480 [ 1078.130916][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1078.130916][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1078.130916][ T253] netlink_rcv_skb+0x130/0x360 [ 1078.130916][ T253] netlink_unicast+0x449/0x710 [ 1078.130916][ T253] netlink_sendmsg+0x723/0xbe0 [ 1078.130916][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1078.130916][ T253] ___sys_sendmsg+0xee/0x170 [ 1078.130916][ T253] __sys_sendmsg+0xcd/0x170 [ 1078.130916][ T253] do_syscall_64+0xc6/0x1e0 [ 1078.130916][ T253] [ 1078.133178][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1078.133178][ T253] netdev_get_by_index+0x5e/0x80 [ 1078.133178][ T253] fib6_nh_init+0x3d8/0x1580 [ 1078.133178][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1078.133178][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1078.133178][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1078.133178][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1078.133178][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1078.133178][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1078.133178][ T253] addrconf_dad_begin+0x310/0x670 [ 1078.133178][ T253] addrconf_dad_work+0x10b/0xab0 [ 1078.133178][ T253] process_one_work+0x84d/0x18a0 [ 1078.133178][ T253] worker_thread+0x587/0xd30 [ 1078.133178][ T253] kthread+0x28a/0x350 [ 1078.133178][ T253] ret_from_fork+0x31/0x70 [ 1078.133178][ T253] ret_from_fork_asm+0x1a/0x30 [ 1078.133178][ T253] [ 1078.135503][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1078.135503][ T253] netdev_get_by_index+0x5e/0x80 [ 1078.135503][ T253] fib6_nh_init+0x3d8/0x1580 [ 1078.135503][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1078.135503][ T253] ip6_route_add+0x1c/0x140 [ 1078.135503][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1078.135503][ T253] inet6_addr_add+0x4f8/0xa40 [ 1078.135503][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1078.135503][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1078.135503][ T253] netlink_rcv_skb+0x130/0x360 [ 1078.135503][ T253] netlink_unicast+0x449/0x710 [ 1078.135503][ T253] netlink_sendmsg+0x723/0xbe0 [ 1078.135503][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1078.135503][ T253] ___sys_sendmsg+0xee/0x170 [ 1078.135503][ T253] __sys_sendmsg+0xcd/0x170 [ 1078.135503][ T253] do_syscall_64+0xc6/0x1e0 [ 1078.135503][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1078.135503][ T253] [ 1078.138604][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1078.138604][ T253] netdev_get_by_index+0x5e/0x80 [ 1078.138604][ T253] fib6_nh_init+0x3d8/0x1580 [ 1078.138604][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1078.138604][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1078.138604][ T253] ipv6_add_addr+0x411/0x2000 [ 1078.138604][ T253] inet6_addr_add+0x30e/0xa40 [ 1078.138604][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1078.138604][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1078.138604][ T253] netlink_rcv_skb+0x130/0x360 [ 1078.138604][ T253] netlink_unicast+0x449/0x710 [ 1078.138604][ T253] netlink_sendmsg+0x723/0xbe0 [ 1078.138604][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1078.138604][ T253] ___sys_sendmsg+0xee/0x170 [ 1078.138604][ T253] __sys_sendmsg+0xcd/0x170 [ 1078.138604][ T253] do_syscall_64+0xc6/0x1e0 [ 1078.138604][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1078.138604][ T253] [ 1078.141004][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1078.141004][ T253] netdev_get_by_index+0x5e/0x80 [ 1078.141004][ T253] fib6_nh_init+0x3d8/0x1580 [ 1078.141004][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1078.141004][ T253] ip6_route_add+0x1c/0x140 [ 1078.141004][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1078.141004][ T253] addrconf_add_dev+0xe2/0x170 [ 1078.141004][ T253] inet6_addr_add+0x12f/0xa40 [ 1078.141004][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1078.141004][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1078.141004][ T253] netlink_rcv_skb+0x130/0x360 [ 1078.141004][ T253] netlink_unicast+0x449/0x710 [ 1078.141004][ T253] netlink_sendmsg+0x723/0xbe0 [ 1078.141004][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1078.141004][ T253] ___sys_sendmsg+0xee/0x170 [ 1078.141004][ T253] __sys_sendmsg+0xcd/0x170 [ 1078.141004][ T253] do_syscall_64+0xc6/0x1e0 [ 1078.141004][ T253] [ 1078.143365][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1078.143365][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1078.143365][ T253] ipv6_find_idev+0x102/0x170 [ 1078.143365][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1078.143365][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1078.143365][ T253] netlink_rcv_skb+0x130/0x360 [ 1078.143365][ T253] netlink_unicast+0x449/0x710 [ 1078.143365][ T253] netlink_sendmsg+0x723/0xbe0 [ 1078.143365][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1078.143365][ T253] ___sys_sendmsg+0xee/0x170 [ 1078.143365][ T253] __sys_sendmsg+0xcd/0x170 [ 1078.143365][ T253] do_syscall_64+0xc6/0x1e0 [ 1078.143365][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1078.143365][ T253] [ 1078.145211][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1078.145211][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1078.145211][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1078.145211][ T253] ipv6_find_idev+0x102/0x170 [ 1078.145211][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1078.145211][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1078.145211][ T253] netlink_rcv_skb+0x130/0x360 [ 1078.145211][ T253] netlink_unicast+0x449/0x710 [ 1078.145211][ T253] netlink_sendmsg+0x723/0xbe0 [ 1078.145211][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1078.145211][ T253] ___sys_sendmsg+0xee/0x170 [ 1078.145211][ T253] __sys_sendmsg+0xcd/0x170 [ 1078.145211][ T253] do_syscall_64+0xc6/0x1e0 [ 1078.145211][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1078.145211][ T253] [ 1088.386292][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1088.386781][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1088.386781][ T253] dst_init+0x84/0x4a0 [ 1088.386781][ T253] dst_alloc+0x97/0x150 [ 1088.386781][ T253] ip6_dst_alloc+0x23/0x90 [ 1088.386781][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1088.386781][ T253] ip6_pol_route+0x56f/0x840 [ 1088.386781][ T253] fib6_rule_lookup+0x334/0x630 [ 1088.386781][ T253] ip6_route_output_flags+0x259/0x480 [ 1088.386781][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1088.386781][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1088.386781][ T253] netlink_rcv_skb+0x130/0x360 [ 1088.386781][ T253] netlink_unicast+0x449/0x710 [ 1088.386781][ T253] netlink_sendmsg+0x723/0xbe0 [ 1088.386781][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1088.386781][ T253] ___sys_sendmsg+0xee/0x170 [ 1088.386781][ T253] __sys_sendmsg+0xcd/0x170 [ 1088.386781][ T253] do_syscall_64+0xc6/0x1e0 [ 1088.386781][ T253] [ 1088.389146][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1088.389146][ T253] netdev_get_by_index+0x5e/0x80 [ 1088.389146][ T253] fib6_nh_init+0x3d8/0x1580 [ 1088.389146][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1088.389146][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1088.389146][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1088.389146][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1088.389146][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1088.389146][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1088.389146][ T253] addrconf_dad_begin+0x310/0x670 [ 1088.389146][ T253] addrconf_dad_work+0x10b/0xab0 [ 1088.389146][ T253] process_one_work+0x84d/0x18a0 [ 1088.389146][ T253] worker_thread+0x587/0xd30 [ 1088.389146][ T253] kthread+0x28a/0x350 [ 1088.389146][ T253] ret_from_fork+0x31/0x70 [ 1088.389146][ T253] ret_from_fork_asm+0x1a/0x30 [ 1088.389146][ T253] [ 1088.391502][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1088.391502][ T253] netdev_get_by_index+0x5e/0x80 [ 1088.391502][ T253] fib6_nh_init+0x3d8/0x1580 [ 1088.391502][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1088.391502][ T253] ip6_route_add+0x1c/0x140 [ 1088.391502][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1088.391502][ T253] inet6_addr_add+0x4f8/0xa40 [ 1088.391502][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1088.391502][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1088.391502][ T253] netlink_rcv_skb+0x130/0x360 [ 1088.391502][ T253] netlink_unicast+0x449/0x710 [ 1088.391502][ T253] netlink_sendmsg+0x723/0xbe0 [ 1088.391502][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1088.391502][ T253] ___sys_sendmsg+0xee/0x170 [ 1088.391502][ T253] __sys_sendmsg+0xcd/0x170 [ 1088.391502][ T253] do_syscall_64+0xc6/0x1e0 [ 1088.391502][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1088.391502][ T253] [ 1088.393859][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1088.393859][ T253] netdev_get_by_index+0x5e/0x80 [ 1088.393859][ T253] fib6_nh_init+0x3d8/0x1580 [ 1088.393859][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1088.393859][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1088.393859][ T253] ipv6_add_addr+0x411/0x2000 [ 1088.393859][ T253] inet6_addr_add+0x30e/0xa40 [ 1088.393859][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1088.393859][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1088.393859][ T253] netlink_rcv_skb+0x130/0x360 [ 1088.393859][ T253] netlink_unicast+0x449/0x710 [ 1088.393859][ T253] netlink_sendmsg+0x723/0xbe0 [ 1088.393859][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1088.393859][ T253] ___sys_sendmsg+0xee/0x170 [ 1088.393859][ T253] __sys_sendmsg+0xcd/0x170 [ 1088.393859][ T253] do_syscall_64+0xc6/0x1e0 [ 1088.393859][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1088.393859][ T253] [ 1088.396379][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1088.396379][ T253] netdev_get_by_index+0x5e/0x80 [ 1088.396379][ T253] fib6_nh_init+0x3d8/0x1580 [ 1088.396379][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1088.396379][ T253] ip6_route_add+0x1c/0x140 [ 1088.396379][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1088.396379][ T253] addrconf_add_dev+0xe2/0x170 [ 1088.396379][ T253] inet6_addr_add+0x12f/0xa40 [ 1088.396379][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1088.396379][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1088.396379][ T253] netlink_rcv_skb+0x130/0x360 [ 1088.396379][ T253] netlink_unicast+0x449/0x710 [ 1088.396379][ T253] netlink_sendmsg+0x723/0xbe0 [ 1088.396379][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1088.396379][ T253] ___sys_sendmsg+0xee/0x170 [ 1088.396379][ T253] __sys_sendmsg+0xcd/0x170 [ 1088.396379][ T253] do_syscall_64+0xc6/0x1e0 [ 1088.396379][ T253] [ 1088.398736][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1088.398736][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1088.398736][ T253] ipv6_find_idev+0x102/0x170 [ 1088.398736][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1088.398736][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1088.398736][ T253] netlink_rcv_skb+0x130/0x360 [ 1088.398736][ T253] netlink_unicast+0x449/0x710 [ 1088.398736][ T253] netlink_sendmsg+0x723/0xbe0 [ 1088.398736][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1088.398736][ T253] ___sys_sendmsg+0xee/0x170 [ 1088.398736][ T253] __sys_sendmsg+0xcd/0x170 [ 1088.398736][ T253] do_syscall_64+0xc6/0x1e0 [ 1088.398736][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1088.398736][ T253] [ 1088.400481][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1088.400481][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1088.400481][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1088.400481][ T253] ipv6_find_idev+0x102/0x170 [ 1088.400481][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1088.400481][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1088.400481][ T253] netlink_rcv_skb+0x130/0x360 [ 1088.400481][ T253] netlink_unicast+0x449/0x710 [ 1088.400481][ T253] netlink_sendmsg+0x723/0xbe0 [ 1088.400481][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1088.400481][ T253] ___sys_sendmsg+0xee/0x170 [ 1088.400481][ T253] __sys_sendmsg+0xcd/0x170 [ 1088.400481][ T253] do_syscall_64+0xc6/0x1e0 [ 1088.400481][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1088.400481][ T253] [ 1098.450325][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1098.450904][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1098.450904][ T253] dst_init+0x84/0x4a0 [ 1098.450904][ T253] dst_alloc+0x97/0x150 [ 1098.450904][ T253] ip6_dst_alloc+0x23/0x90 [ 1098.450904][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1098.450904][ T253] ip6_pol_route+0x56f/0x840 [ 1098.450904][ T253] fib6_rule_lookup+0x334/0x630 [ 1098.450904][ T253] ip6_route_output_flags+0x259/0x480 [ 1098.450904][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1098.450904][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1098.450904][ T253] netlink_rcv_skb+0x130/0x360 [ 1098.450904][ T253] netlink_unicast+0x449/0x710 [ 1098.450904][ T253] netlink_sendmsg+0x723/0xbe0 [ 1098.450904][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1098.450904][ T253] ___sys_sendmsg+0xee/0x170 [ 1098.450904][ T253] __sys_sendmsg+0xcd/0x170 [ 1098.450904][ T253] do_syscall_64+0xc6/0x1e0 [ 1098.450904][ T253] [ 1098.453271][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1098.453271][ T253] netdev_get_by_index+0x5e/0x80 [ 1098.453271][ T253] fib6_nh_init+0x3d8/0x1580 [ 1098.453271][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1098.453271][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1098.453271][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1098.453271][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1098.453271][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1098.453271][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1098.453271][ T253] addrconf_dad_begin+0x310/0x670 [ 1098.453271][ T253] addrconf_dad_work+0x10b/0xab0 [ 1098.453271][ T253] process_one_work+0x84d/0x18a0 [ 1098.453271][ T253] worker_thread+0x587/0xd30 [ 1098.453271][ T253] kthread+0x28a/0x350 [ 1098.453271][ T253] ret_from_fork+0x31/0x70 [ 1098.453271][ T253] ret_from_fork_asm+0x1a/0x30 [ 1098.453271][ T253] [ 1098.455511][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1098.455511][ T253] netdev_get_by_index+0x5e/0x80 [ 1098.455511][ T253] fib6_nh_init+0x3d8/0x1580 [ 1098.455511][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1098.455511][ T253] ip6_route_add+0x1c/0x140 [ 1098.455511][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1098.455511][ T253] inet6_addr_add+0x4f8/0xa40 [ 1098.455511][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1098.455511][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1098.455511][ T253] netlink_rcv_skb+0x130/0x360 [ 1098.455511][ T253] netlink_unicast+0x449/0x710 [ 1098.455511][ T253] netlink_sendmsg+0x723/0xbe0 [ 1098.455511][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1098.455511][ T253] ___sys_sendmsg+0xee/0x170 [ 1098.455511][ T253] __sys_sendmsg+0xcd/0x170 [ 1098.455511][ T253] do_syscall_64+0xc6/0x1e0 [ 1098.455511][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1098.455511][ T253] [ 1098.457794][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1098.457794][ T253] netdev_get_by_index+0x5e/0x80 [ 1098.457794][ T253] fib6_nh_init+0x3d8/0x1580 [ 1098.457794][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1098.457794][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1098.457794][ T253] ipv6_add_addr+0x411/0x2000 [ 1098.457794][ T253] inet6_addr_add+0x30e/0xa40 [ 1098.457794][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1098.457794][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1098.457794][ T253] netlink_rcv_skb+0x130/0x360 [ 1098.457794][ T253] netlink_unicast+0x449/0x710 [ 1098.457794][ T253] netlink_sendmsg+0x723/0xbe0 [ 1098.457794][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1098.457794][ T253] ___sys_sendmsg+0xee/0x170 [ 1098.457794][ T253] __sys_sendmsg+0xcd/0x170 [ 1098.457794][ T253] do_syscall_64+0xc6/0x1e0 [ 1098.457794][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1098.457794][ T253] [ 1098.460038][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1098.460038][ T253] netdev_get_by_index+0x5e/0x80 [ 1098.460038][ T253] fib6_nh_init+0x3d8/0x1580 [ 1098.460038][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1098.460038][ T253] ip6_route_add+0x1c/0x140 [ 1098.460038][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1098.460038][ T253] addrconf_add_dev+0xe2/0x170 [ 1098.460038][ T253] inet6_addr_add+0x12f/0xa40 [ 1098.460038][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1098.460038][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1098.460038][ T253] netlink_rcv_skb+0x130/0x360 [ 1098.460038][ T253] netlink_unicast+0x449/0x710 [ 1098.460038][ T253] netlink_sendmsg+0x723/0xbe0 [ 1098.460038][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1098.460038][ T253] ___sys_sendmsg+0xee/0x170 [ 1098.460038][ T253] __sys_sendmsg+0xcd/0x170 [ 1098.460038][ T253] do_syscall_64+0xc6/0x1e0 [ 1098.460038][ T253] [ 1098.462284][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1098.462284][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1098.462284][ T253] ipv6_find_idev+0x102/0x170 [ 1098.462284][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1098.462284][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1098.462284][ T253] netlink_rcv_skb+0x130/0x360 [ 1098.462284][ T253] netlink_unicast+0x449/0x710 [ 1098.462284][ T253] netlink_sendmsg+0x723/0xbe0 [ 1098.462284][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1098.462284][ T253] ___sys_sendmsg+0xee/0x170 [ 1098.462284][ T253] __sys_sendmsg+0xcd/0x170 [ 1098.462284][ T253] do_syscall_64+0xc6/0x1e0 [ 1098.462284][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1098.462284][ T253] [ 1098.464063][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1098.464063][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1098.464063][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1098.464063][ T253] ipv6_find_idev+0x102/0x170 [ 1098.464063][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1098.464063][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1098.464063][ T253] netlink_rcv_skb+0x130/0x360 [ 1098.464063][ T253] netlink_unicast+0x449/0x710 [ 1098.464063][ T253] netlink_sendmsg+0x723/0xbe0 [ 1098.464063][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1098.464063][ T253] ___sys_sendmsg+0xee/0x170 [ 1098.464063][ T253] __sys_sendmsg+0xcd/0x170 [ 1098.464063][ T253] do_syscall_64+0xc6/0x1e0 [ 1098.464063][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1098.464063][ T253] [ 1108.842470][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1108.843021][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1108.843021][ T253] dst_init+0x84/0x4a0 [ 1108.843021][ T253] dst_alloc+0x97/0x150 [ 1108.843021][ T253] ip6_dst_alloc+0x23/0x90 [ 1108.843021][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1108.843021][ T253] ip6_pol_route+0x56f/0x840 [ 1108.843021][ T253] fib6_rule_lookup+0x334/0x630 [ 1108.843021][ T253] ip6_route_output_flags+0x259/0x480 [ 1108.843021][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1108.843021][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1108.843021][ T253] netlink_rcv_skb+0x130/0x360 [ 1108.843021][ T253] netlink_unicast+0x449/0x710 [ 1108.843021][ T253] netlink_sendmsg+0x723/0xbe0 [ 1108.843021][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1108.843021][ T253] ___sys_sendmsg+0xee/0x170 [ 1108.843021][ T253] __sys_sendmsg+0xcd/0x170 [ 1108.843021][ T253] do_syscall_64+0xc6/0x1e0 [ 1108.843021][ T253] [ 1108.845276][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1108.845276][ T253] netdev_get_by_index+0x5e/0x80 [ 1108.845276][ T253] fib6_nh_init+0x3d8/0x1580 [ 1108.845276][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1108.845276][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1108.845276][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1108.845276][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1108.845276][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1108.845276][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1108.845276][ T253] addrconf_dad_begin+0x310/0x670 [ 1108.845276][ T253] addrconf_dad_work+0x10b/0xab0 [ 1108.845276][ T253] process_one_work+0x84d/0x18a0 [ 1108.845276][ T253] worker_thread+0x587/0xd30 [ 1108.845276][ T253] kthread+0x28a/0x350 [ 1108.845276][ T253] ret_from_fork+0x31/0x70 [ 1108.845276][ T253] ret_from_fork_asm+0x1a/0x30 [ 1108.845276][ T253] [ 1108.847444][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1108.847444][ T253] netdev_get_by_index+0x5e/0x80 [ 1108.847444][ T253] fib6_nh_init+0x3d8/0x1580 [ 1108.847444][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1108.847444][ T253] ip6_route_add+0x1c/0x140 [ 1108.847444][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1108.847444][ T253] inet6_addr_add+0x4f8/0xa40 [ 1108.847444][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1108.847444][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1108.847444][ T253] netlink_rcv_skb+0x130/0x360 [ 1108.847444][ T253] netlink_unicast+0x449/0x710 [ 1108.847444][ T253] netlink_sendmsg+0x723/0xbe0 [ 1108.847444][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1108.847444][ T253] ___sys_sendmsg+0xee/0x170 [ 1108.847444][ T253] __sys_sendmsg+0xcd/0x170 [ 1108.847444][ T253] do_syscall_64+0xc6/0x1e0 [ 1108.847444][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1108.847444][ T253] [ 1108.849694][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1108.849694][ T253] netdev_get_by_index+0x5e/0x80 [ 1108.849694][ T253] fib6_nh_init+0x3d8/0x1580 [ 1108.849694][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1108.849694][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1108.849694][ T253] ipv6_add_addr+0x411/0x2000 [ 1108.849694][ T253] inet6_addr_add+0x30e/0xa40 [ 1108.849694][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1108.849694][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1108.849694][ T253] netlink_rcv_skb+0x130/0x360 [ 1108.849694][ T253] netlink_unicast+0x449/0x710 [ 1108.849694][ T253] netlink_sendmsg+0x723/0xbe0 [ 1108.849694][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1108.849694][ T253] ___sys_sendmsg+0xee/0x170 [ 1108.849694][ T253] __sys_sendmsg+0xcd/0x170 [ 1108.849694][ T253] do_syscall_64+0xc6/0x1e0 [ 1108.849694][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1108.849694][ T253] [ 1108.851938][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1108.851938][ T253] netdev_get_by_index+0x5e/0x80 [ 1108.851938][ T253] fib6_nh_init+0x3d8/0x1580 [ 1108.851938][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1108.851938][ T253] ip6_route_add+0x1c/0x140 [ 1108.851938][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1108.851938][ T253] addrconf_add_dev+0xe2/0x170 [ 1108.851938][ T253] inet6_addr_add+0x12f/0xa40 [ 1108.851938][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1108.851938][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1108.851938][ T253] netlink_rcv_skb+0x130/0x360 [ 1108.851938][ T253] netlink_unicast+0x449/0x710 [ 1108.851938][ T253] netlink_sendmsg+0x723/0xbe0 [ 1108.851938][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1108.851938][ T253] ___sys_sendmsg+0xee/0x170 [ 1108.851938][ T253] __sys_sendmsg+0xcd/0x170 [ 1108.851938][ T253] do_syscall_64+0xc6/0x1e0 [ 1108.851938][ T253] [ 1108.854166][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1108.854166][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1108.854166][ T253] ipv6_find_idev+0x102/0x170 [ 1108.854166][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1108.854166][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1108.854166][ T253] netlink_rcv_skb+0x130/0x360 [ 1108.854166][ T253] netlink_unicast+0x449/0x710 [ 1108.854166][ T253] netlink_sendmsg+0x723/0xbe0 [ 1108.854166][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1108.854166][ T253] ___sys_sendmsg+0xee/0x170 [ 1108.854166][ T253] __sys_sendmsg+0xcd/0x170 [ 1108.854166][ T253] do_syscall_64+0xc6/0x1e0 [ 1108.854166][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1108.854166][ T253] [ 1108.855895][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1108.855895][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1108.855895][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1108.855895][ T253] ipv6_find_idev+0x102/0x170 [ 1108.855895][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1108.855895][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1108.855895][ T253] netlink_rcv_skb+0x130/0x360 [ 1108.855895][ T253] netlink_unicast+0x449/0x710 [ 1108.855895][ T253] netlink_sendmsg+0x723/0xbe0 [ 1108.855895][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1108.855895][ T253] ___sys_sendmsg+0xee/0x170 [ 1108.855895][ T253] __sys_sendmsg+0xcd/0x170 [ 1108.855895][ T253] do_syscall_64+0xc6/0x1e0 [ 1108.855895][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1108.855895][ T253] [ 1119.106317][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1119.106864][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1119.106864][ T253] dst_init+0x84/0x4a0 [ 1119.106864][ T253] dst_alloc+0x97/0x150 [ 1119.106864][ T253] ip6_dst_alloc+0x23/0x90 [ 1119.106864][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1119.106864][ T253] ip6_pol_route+0x56f/0x840 [ 1119.106864][ T253] fib6_rule_lookup+0x334/0x630 [ 1119.106864][ T253] ip6_route_output_flags+0x259/0x480 [ 1119.106864][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1119.106864][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1119.106864][ T253] netlink_rcv_skb+0x130/0x360 [ 1119.106864][ T253] netlink_unicast+0x449/0x710 [ 1119.106864][ T253] netlink_sendmsg+0x723/0xbe0 [ 1119.106864][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1119.106864][ T253] ___sys_sendmsg+0xee/0x170 [ 1119.106864][ T253] __sys_sendmsg+0xcd/0x170 [ 1119.106864][ T253] do_syscall_64+0xc6/0x1e0 [ 1119.106864][ T253] [ 1119.109104][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1119.109104][ T253] netdev_get_by_index+0x5e/0x80 [ 1119.109104][ T253] fib6_nh_init+0x3d8/0x1580 [ 1119.109104][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1119.109104][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1119.109104][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1119.109104][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1119.109104][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1119.109104][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1119.109104][ T253] addrconf_dad_begin+0x310/0x670 [ 1119.109104][ T253] addrconf_dad_work+0x10b/0xab0 [ 1119.109104][ T253] process_one_work+0x84d/0x18a0 [ 1119.109104][ T253] worker_thread+0x587/0xd30 [ 1119.109104][ T253] kthread+0x28a/0x350 [ 1119.109104][ T253] ret_from_fork+0x31/0x70 [ 1119.109104][ T253] ret_from_fork_asm+0x1a/0x30 [ 1119.109104][ T253] [ 1119.111361][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1119.111361][ T253] netdev_get_by_index+0x5e/0x80 [ 1119.111361][ T253] fib6_nh_init+0x3d8/0x1580 [ 1119.111361][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1119.111361][ T253] ip6_route_add+0x1c/0x140 [ 1119.111361][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1119.111361][ T253] inet6_addr_add+0x4f8/0xa40 [ 1119.111361][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1119.111361][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1119.111361][ T253] netlink_rcv_skb+0x130/0x360 [ 1119.111361][ T253] netlink_unicast+0x449/0x710 [ 1119.111361][ T253] netlink_sendmsg+0x723/0xbe0 [ 1119.111361][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1119.111361][ T253] ___sys_sendmsg+0xee/0x170 [ 1119.111361][ T253] __sys_sendmsg+0xcd/0x170 [ 1119.111361][ T253] do_syscall_64+0xc6/0x1e0 [ 1119.111361][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1119.111361][ T253] [ 1119.113669][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1119.113669][ T253] netdev_get_by_index+0x5e/0x80 [ 1119.113669][ T253] fib6_nh_init+0x3d8/0x1580 [ 1119.113669][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1119.113669][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1119.113669][ T253] ipv6_add_addr+0x411/0x2000 [ 1119.113669][ T253] inet6_addr_add+0x30e/0xa40 [ 1119.113669][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1119.113669][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1119.113669][ T253] netlink_rcv_skb+0x130/0x360 [ 1119.113669][ T253] netlink_unicast+0x449/0x710 [ 1119.113669][ T253] netlink_sendmsg+0x723/0xbe0 [ 1119.113669][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1119.113669][ T253] ___sys_sendmsg+0xee/0x170 [ 1119.113669][ T253] __sys_sendmsg+0xcd/0x170 [ 1119.113669][ T253] do_syscall_64+0xc6/0x1e0 [ 1119.113669][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1119.113669][ T253] [ 1119.115993][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1119.115993][ T253] netdev_get_by_index+0x5e/0x80 [ 1119.115993][ T253] fib6_nh_init+0x3d8/0x1580 [ 1119.115993][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1119.115993][ T253] ip6_route_add+0x1c/0x140 [ 1119.115993][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1119.115993][ T253] addrconf_add_dev+0xe2/0x170 [ 1119.115993][ T253] inet6_addr_add+0x12f/0xa40 [ 1119.115993][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1119.115993][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1119.115993][ T253] netlink_rcv_skb+0x130/0x360 [ 1119.115993][ T253] netlink_unicast+0x449/0x710 [ 1119.115993][ T253] netlink_sendmsg+0x723/0xbe0 [ 1119.115993][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1119.115993][ T253] ___sys_sendmsg+0xee/0x170 [ 1119.115993][ T253] __sys_sendmsg+0xcd/0x170 [ 1119.115993][ T253] do_syscall_64+0xc6/0x1e0 [ 1119.115993][ T253] [ 1119.118256][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1119.118256][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1119.118256][ T253] ipv6_find_idev+0x102/0x170 [ 1119.118256][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1119.118256][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1119.118256][ T253] netlink_rcv_skb+0x130/0x360 [ 1119.118256][ T253] netlink_unicast+0x449/0x710 [ 1119.118256][ T253] netlink_sendmsg+0x723/0xbe0 [ 1119.118256][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1119.118256][ T253] ___sys_sendmsg+0xee/0x170 [ 1119.118256][ T253] __sys_sendmsg+0xcd/0x170 [ 1119.118256][ T253] do_syscall_64+0xc6/0x1e0 [ 1119.118256][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1119.118256][ T253] [ 1119.120044][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1119.120044][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1119.120044][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1119.120044][ T253] ipv6_find_idev+0x102/0x170 [ 1119.120044][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1119.120044][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1119.120044][ T253] netlink_rcv_skb+0x130/0x360 [ 1119.120044][ T253] netlink_unicast+0x449/0x710 [ 1119.120044][ T253] netlink_sendmsg+0x723/0xbe0 [ 1119.120044][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1119.120044][ T253] ___sys_sendmsg+0xee/0x170 [ 1119.120044][ T253] __sys_sendmsg+0xcd/0x170 [ 1119.120044][ T253] do_syscall_64+0xc6/0x1e0 [ 1119.120044][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1119.120044][ T253] [ 1129.370363][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1129.370868][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1129.370868][ T253] dst_init+0x84/0x4a0 [ 1129.370868][ T253] dst_alloc+0x97/0x150 [ 1129.370868][ T253] ip6_dst_alloc+0x23/0x90 [ 1129.370868][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1129.370868][ T253] ip6_pol_route+0x56f/0x840 [ 1129.370868][ T253] fib6_rule_lookup+0x334/0x630 [ 1129.370868][ T253] ip6_route_output_flags+0x259/0x480 [ 1129.370868][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1129.370868][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1129.370868][ T253] netlink_rcv_skb+0x130/0x360 [ 1129.370868][ T253] netlink_unicast+0x449/0x710 [ 1129.370868][ T253] netlink_sendmsg+0x723/0xbe0 [ 1129.370868][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1129.370868][ T253] ___sys_sendmsg+0xee/0x170 [ 1129.370868][ T253] __sys_sendmsg+0xcd/0x170 [ 1129.370868][ T253] do_syscall_64+0xc6/0x1e0 [ 1129.370868][ T253] [ 1129.373277][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1129.373277][ T253] netdev_get_by_index+0x5e/0x80 [ 1129.373277][ T253] fib6_nh_init+0x3d8/0x1580 [ 1129.373277][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1129.373277][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1129.373277][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1129.373277][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1129.373277][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1129.373277][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1129.373277][ T253] addrconf_dad_begin+0x310/0x670 [ 1129.373277][ T253] addrconf_dad_work+0x10b/0xab0 [ 1129.373277][ T253] process_one_work+0x84d/0x18a0 [ 1129.373277][ T253] worker_thread+0x587/0xd30 [ 1129.373277][ T253] kthread+0x28a/0x350 [ 1129.373277][ T253] ret_from_fork+0x31/0x70 [ 1129.373277][ T253] ret_from_fork_asm+0x1a/0x30 [ 1129.373277][ T253] [ 1129.375653][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1129.375653][ T253] netdev_get_by_index+0x5e/0x80 [ 1129.375653][ T253] fib6_nh_init+0x3d8/0x1580 [ 1129.375653][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1129.375653][ T253] ip6_route_add+0x1c/0x140 [ 1129.375653][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1129.375653][ T253] inet6_addr_add+0x4f8/0xa40 [ 1129.375653][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1129.375653][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1129.375653][ T253] netlink_rcv_skb+0x130/0x360 [ 1129.375653][ T253] netlink_unicast+0x449/0x710 [ 1129.375653][ T253] netlink_sendmsg+0x723/0xbe0 [ 1129.375653][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1129.375653][ T253] ___sys_sendmsg+0xee/0x170 [ 1129.375653][ T253] __sys_sendmsg+0xcd/0x170 [ 1129.375653][ T253] do_syscall_64+0xc6/0x1e0 [ 1129.375653][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1129.375653][ T253] [ 1129.378075][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1129.378075][ T253] netdev_get_by_index+0x5e/0x80 [ 1129.378075][ T253] fib6_nh_init+0x3d8/0x1580 [ 1129.378075][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1129.378075][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1129.378075][ T253] ipv6_add_addr+0x411/0x2000 [ 1129.378075][ T253] inet6_addr_add+0x30e/0xa40 [ 1129.378075][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1129.378075][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1129.378075][ T253] netlink_rcv_skb+0x130/0x360 [ 1129.378075][ T253] netlink_unicast+0x449/0x710 [ 1129.378075][ T253] netlink_sendmsg+0x723/0xbe0 [ 1129.378075][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1129.378075][ T253] ___sys_sendmsg+0xee/0x170 [ 1129.378075][ T253] __sys_sendmsg+0xcd/0x170 [ 1129.378075][ T253] do_syscall_64+0xc6/0x1e0 [ 1129.378075][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1129.378075][ T253] [ 1129.380509][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1129.380509][ T253] netdev_get_by_index+0x5e/0x80 [ 1129.380509][ T253] fib6_nh_init+0x3d8/0x1580 [ 1129.380509][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1129.380509][ T253] ip6_route_add+0x1c/0x140 [ 1129.380509][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1129.380509][ T253] addrconf_add_dev+0xe2/0x170 [ 1129.380509][ T253] inet6_addr_add+0x12f/0xa40 [ 1129.380509][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1129.380509][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1129.380509][ T253] netlink_rcv_skb+0x130/0x360 [ 1129.380509][ T253] netlink_unicast+0x449/0x710 [ 1129.380509][ T253] netlink_sendmsg+0x723/0xbe0 [ 1129.380509][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1129.380509][ T253] ___sys_sendmsg+0xee/0x170 [ 1129.380509][ T253] __sys_sendmsg+0xcd/0x170 [ 1129.380509][ T253] do_syscall_64+0xc6/0x1e0 [ 1129.380509][ T253] [ 1129.382913][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1129.382913][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1129.382913][ T253] ipv6_find_idev+0x102/0x170 [ 1129.382913][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1129.382913][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1129.382913][ T253] netlink_rcv_skb+0x130/0x360 [ 1129.382913][ T253] netlink_unicast+0x449/0x710 [ 1129.382913][ T253] netlink_sendmsg+0x723/0xbe0 [ 1129.382913][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1129.382913][ T253] ___sys_sendmsg+0xee/0x170 [ 1129.382913][ T253] __sys_sendmsg+0xcd/0x170 [ 1129.382913][ T253] do_syscall_64+0xc6/0x1e0 [ 1129.382913][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1129.382913][ T253] [ 1129.384831][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1129.384831][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1129.384831][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1129.384831][ T253] ipv6_find_idev+0x102/0x170 [ 1129.384831][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1129.384831][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1129.384831][ T253] netlink_rcv_skb+0x130/0x360 [ 1129.384831][ T253] netlink_unicast+0x449/0x710 [ 1129.384831][ T253] netlink_sendmsg+0x723/0xbe0 [ 1129.384831][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1129.384831][ T253] ___sys_sendmsg+0xee/0x170 [ 1129.384831][ T253] __sys_sendmsg+0xcd/0x170 [ 1129.384831][ T253] do_syscall_64+0xc6/0x1e0 [ 1129.384831][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1129.384831][ T253] [ 1139.634251][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1139.634734][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1139.634734][ T253] dst_init+0x84/0x4a0 [ 1139.634734][ T253] dst_alloc+0x97/0x150 [ 1139.634734][ T253] ip6_dst_alloc+0x23/0x90 [ 1139.634734][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1139.634734][ T253] ip6_pol_route+0x56f/0x840 [ 1139.634734][ T253] fib6_rule_lookup+0x334/0x630 [ 1139.634734][ T253] ip6_route_output_flags+0x259/0x480 [ 1139.634734][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1139.634734][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1139.634734][ T253] netlink_rcv_skb+0x130/0x360 [ 1139.634734][ T253] netlink_unicast+0x449/0x710 [ 1139.634734][ T253] netlink_sendmsg+0x723/0xbe0 [ 1139.634734][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1139.634734][ T253] ___sys_sendmsg+0xee/0x170 [ 1139.634734][ T253] __sys_sendmsg+0xcd/0x170 [ 1139.634734][ T253] do_syscall_64+0xc6/0x1e0 [ 1139.634734][ T253] [ 1139.636998][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1139.636998][ T253] netdev_get_by_index+0x5e/0x80 [ 1139.636998][ T253] fib6_nh_init+0x3d8/0x1580 [ 1139.636998][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1139.636998][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1139.636998][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1139.636998][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1139.636998][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1139.636998][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1139.636998][ T253] addrconf_dad_begin+0x310/0x670 [ 1139.636998][ T253] addrconf_dad_work+0x10b/0xab0 [ 1139.636998][ T253] process_one_work+0x84d/0x18a0 [ 1139.636998][ T253] worker_thread+0x587/0xd30 [ 1139.636998][ T253] kthread+0x28a/0x350 [ 1139.636998][ T253] ret_from_fork+0x31/0x70 [ 1139.636998][ T253] ret_from_fork_asm+0x1a/0x30 [ 1139.636998][ T253] [ 1139.639175][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1139.639175][ T253] netdev_get_by_index+0x5e/0x80 [ 1139.639175][ T253] fib6_nh_init+0x3d8/0x1580 [ 1139.639175][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1139.639175][ T253] ip6_route_add+0x1c/0x140 [ 1139.639175][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1139.639175][ T253] inet6_addr_add+0x4f8/0xa40 [ 1139.639175][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1139.639175][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1139.639175][ T253] netlink_rcv_skb+0x130/0x360 [ 1139.639175][ T253] netlink_unicast+0x449/0x710 [ 1139.639175][ T253] netlink_sendmsg+0x723/0xbe0 [ 1139.639175][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1139.639175][ T253] ___sys_sendmsg+0xee/0x170 [ 1139.639175][ T253] __sys_sendmsg+0xcd/0x170 [ 1139.639175][ T253] do_syscall_64+0xc6/0x1e0 [ 1139.639175][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1139.639175][ T253] [ 1139.641455][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1139.641455][ T253] netdev_get_by_index+0x5e/0x80 [ 1139.641455][ T253] fib6_nh_init+0x3d8/0x1580 [ 1139.641455][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1139.641455][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1139.641455][ T253] ipv6_add_addr+0x411/0x2000 [ 1139.641455][ T253] inet6_addr_add+0x30e/0xa40 [ 1139.641455][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1139.641455][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1139.641455][ T253] netlink_rcv_skb+0x130/0x360 [ 1139.641455][ T253] netlink_unicast+0x449/0x710 [ 1139.641455][ T253] netlink_sendmsg+0x723/0xbe0 [ 1139.641455][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1139.641455][ T253] ___sys_sendmsg+0xee/0x170 [ 1139.641455][ T253] __sys_sendmsg+0xcd/0x170 [ 1139.641455][ T253] do_syscall_64+0xc6/0x1e0 [ 1139.641455][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1139.641455][ T253] [ 1139.643760][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1139.643760][ T253] netdev_get_by_index+0x5e/0x80 [ 1139.643760][ T253] fib6_nh_init+0x3d8/0x1580 [ 1139.643760][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1139.643760][ T253] ip6_route_add+0x1c/0x140 [ 1139.643760][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1139.643760][ T253] addrconf_add_dev+0xe2/0x170 [ 1139.643760][ T253] inet6_addr_add+0x12f/0xa40 [ 1139.643760][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1139.643760][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1139.643760][ T253] netlink_rcv_skb+0x130/0x360 [ 1139.643760][ T253] netlink_unicast+0x449/0x710 [ 1139.643760][ T253] netlink_sendmsg+0x723/0xbe0 [ 1139.643760][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1139.643760][ T253] ___sys_sendmsg+0xee/0x170 [ 1139.643760][ T253] __sys_sendmsg+0xcd/0x170 [ 1139.643760][ T253] do_syscall_64+0xc6/0x1e0 [ 1139.643760][ T253] [ 1139.645979][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1139.645979][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1139.645979][ T253] ipv6_find_idev+0x102/0x170 [ 1139.645979][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1139.645979][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1139.645979][ T253] netlink_rcv_skb+0x130/0x360 [ 1139.645979][ T253] netlink_unicast+0x449/0x710 [ 1139.645979][ T253] netlink_sendmsg+0x723/0xbe0 [ 1139.645979][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1139.645979][ T253] ___sys_sendmsg+0xee/0x170 [ 1139.645979][ T253] __sys_sendmsg+0xcd/0x170 [ 1139.645979][ T253] do_syscall_64+0xc6/0x1e0 [ 1139.645979][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1139.645979][ T253] [ 1139.647976][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1139.647976][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1139.647976][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1139.647976][ T253] ipv6_find_idev+0x102/0x170 [ 1139.647976][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1139.647976][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1139.647976][ T253] netlink_rcv_skb+0x130/0x360 [ 1139.647976][ T253] netlink_unicast+0x449/0x710 [ 1139.647976][ T253] netlink_sendmsg+0x723/0xbe0 [ 1139.647976][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1139.647976][ T253] ___sys_sendmsg+0xee/0x170 [ 1139.647976][ T253] __sys_sendmsg+0xcd/0x170 [ 1139.647976][ T253] do_syscall_64+0xc6/0x1e0 [ 1139.647976][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1139.647976][ T253] [ 1149.762265][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1149.762760][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1149.762760][ T253] dst_init+0x84/0x4a0 [ 1149.762760][ T253] dst_alloc+0x97/0x150 [ 1149.762760][ T253] ip6_dst_alloc+0x23/0x90 [ 1149.762760][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1149.762760][ T253] ip6_pol_route+0x56f/0x840 [ 1149.762760][ T253] fib6_rule_lookup+0x334/0x630 [ 1149.762760][ T253] ip6_route_output_flags+0x259/0x480 [ 1149.762760][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1149.762760][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1149.762760][ T253] netlink_rcv_skb+0x130/0x360 [ 1149.762760][ T253] netlink_unicast+0x449/0x710 [ 1149.762760][ T253] netlink_sendmsg+0x723/0xbe0 [ 1149.762760][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1149.762760][ T253] ___sys_sendmsg+0xee/0x170 [ 1149.762760][ T253] __sys_sendmsg+0xcd/0x170 [ 1149.762760][ T253] do_syscall_64+0xc6/0x1e0 [ 1149.762760][ T253] [ 1149.765093][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1149.765093][ T253] netdev_get_by_index+0x5e/0x80 [ 1149.765093][ T253] fib6_nh_init+0x3d8/0x1580 [ 1149.765093][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1149.765093][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1149.765093][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1149.765093][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1149.765093][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1149.765093][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1149.765093][ T253] addrconf_dad_begin+0x310/0x670 [ 1149.765093][ T253] addrconf_dad_work+0x10b/0xab0 [ 1149.765093][ T253] process_one_work+0x84d/0x18a0 [ 1149.765093][ T253] worker_thread+0x587/0xd30 [ 1149.765093][ T253] kthread+0x28a/0x350 [ 1149.765093][ T253] ret_from_fork+0x31/0x70 [ 1149.765093][ T253] ret_from_fork_asm+0x1a/0x30 [ 1149.765093][ T253] [ 1149.767267][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1149.767267][ T253] netdev_get_by_index+0x5e/0x80 [ 1149.767267][ T253] fib6_nh_init+0x3d8/0x1580 [ 1149.767267][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1149.767267][ T253] ip6_route_add+0x1c/0x140 [ 1149.767267][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1149.767267][ T253] inet6_addr_add+0x4f8/0xa40 [ 1149.767267][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1149.767267][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1149.767267][ T253] netlink_rcv_skb+0x130/0x360 [ 1149.767267][ T253] netlink_unicast+0x449/0x710 [ 1149.767267][ T253] netlink_sendmsg+0x723/0xbe0 [ 1149.767267][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1149.767267][ T253] ___sys_sendmsg+0xee/0x170 [ 1149.767267][ T253] __sys_sendmsg+0xcd/0x170 [ 1149.767267][ T253] do_syscall_64+0xc6/0x1e0 [ 1149.767267][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1149.767267][ T253] [ 1149.769523][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1149.769523][ T253] netdev_get_by_index+0x5e/0x80 [ 1149.769523][ T253] fib6_nh_init+0x3d8/0x1580 [ 1149.769523][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1149.769523][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1149.769523][ T253] ipv6_add_addr+0x411/0x2000 [ 1149.769523][ T253] inet6_addr_add+0x30e/0xa40 [ 1149.769523][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1149.769523][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1149.769523][ T253] netlink_rcv_skb+0x130/0x360 [ 1149.769523][ T253] netlink_unicast+0x449/0x710 [ 1149.769523][ T253] netlink_sendmsg+0x723/0xbe0 [ 1149.769523][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1149.769523][ T253] ___sys_sendmsg+0xee/0x170 [ 1149.769523][ T253] __sys_sendmsg+0xcd/0x170 [ 1149.769523][ T253] do_syscall_64+0xc6/0x1e0 [ 1149.769523][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1149.769523][ T253] [ 1149.771804][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1149.771804][ T253] netdev_get_by_index+0x5e/0x80 [ 1149.771804][ T253] fib6_nh_init+0x3d8/0x1580 [ 1149.771804][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1149.771804][ T253] ip6_route_add+0x1c/0x140 [ 1149.771804][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1149.771804][ T253] addrconf_add_dev+0xe2/0x170 [ 1149.771804][ T253] inet6_addr_add+0x12f/0xa40 [ 1149.771804][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1149.771804][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1149.771804][ T253] netlink_rcv_skb+0x130/0x360 [ 1149.771804][ T253] netlink_unicast+0x449/0x710 [ 1149.771804][ T253] netlink_sendmsg+0x723/0xbe0 [ 1149.771804][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1149.771804][ T253] ___sys_sendmsg+0xee/0x170 [ 1149.771804][ T253] __sys_sendmsg+0xcd/0x170 [ 1149.771804][ T253] do_syscall_64+0xc6/0x1e0 [ 1149.771804][ T253] [ 1149.774057][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1149.774057][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1149.774057][ T253] ipv6_find_idev+0x102/0x170 [ 1149.774057][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1149.774057][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1149.774057][ T253] netlink_rcv_skb+0x130/0x360 [ 1149.774057][ T253] netlink_unicast+0x449/0x710 [ 1149.774057][ T253] netlink_sendmsg+0x723/0xbe0 [ 1149.774057][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1149.774057][ T253] ___sys_sendmsg+0xee/0x170 [ 1149.774057][ T253] __sys_sendmsg+0xcd/0x170 [ 1149.774057][ T253] do_syscall_64+0xc6/0x1e0 [ 1149.774057][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1149.774057][ T253] [ 1149.775836][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1149.775836][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1149.775836][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1149.775836][ T253] ipv6_find_idev+0x102/0x170 [ 1149.775836][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1149.775836][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1149.775836][ T253] netlink_rcv_skb+0x130/0x360 [ 1149.775836][ T253] netlink_unicast+0x449/0x710 [ 1149.775836][ T253] netlink_sendmsg+0x723/0xbe0 [ 1149.775836][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1149.775836][ T253] ___sys_sendmsg+0xee/0x170 [ 1149.775836][ T253] __sys_sendmsg+0xcd/0x170 [ 1149.775836][ T253] do_syscall_64+0xc6/0x1e0 [ 1149.775836][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1149.775836][ T253] [ 1159.962350][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1159.962904][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1159.962904][ T253] dst_init+0x84/0x4a0 [ 1159.962904][ T253] dst_alloc+0x97/0x150 [ 1159.962904][ T253] ip6_dst_alloc+0x23/0x90 [ 1159.962904][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1159.962904][ T253] ip6_pol_route+0x56f/0x840 [ 1159.962904][ T253] fib6_rule_lookup+0x334/0x630 [ 1159.962904][ T253] ip6_route_output_flags+0x259/0x480 [ 1159.962904][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1159.962904][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1159.962904][ T253] netlink_rcv_skb+0x130/0x360 [ 1159.962904][ T253] netlink_unicast+0x449/0x710 [ 1159.962904][ T253] netlink_sendmsg+0x723/0xbe0 [ 1159.962904][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1159.962904][ T253] ___sys_sendmsg+0xee/0x170 [ 1159.962904][ T253] __sys_sendmsg+0xcd/0x170 [ 1159.962904][ T253] do_syscall_64+0xc6/0x1e0 [ 1159.962904][ T253] [ 1159.965156][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1159.965156][ T253] netdev_get_by_index+0x5e/0x80 [ 1159.965156][ T253] fib6_nh_init+0x3d8/0x1580 [ 1159.965156][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1159.965156][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1159.965156][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1159.965156][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1159.965156][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1159.965156][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1159.965156][ T253] addrconf_dad_begin+0x310/0x670 [ 1159.965156][ T253] addrconf_dad_work+0x10b/0xab0 [ 1159.965156][ T253] process_one_work+0x84d/0x18a0 [ 1159.965156][ T253] worker_thread+0x587/0xd30 [ 1159.965156][ T253] kthread+0x28a/0x350 [ 1159.965156][ T253] ret_from_fork+0x31/0x70 [ 1159.965156][ T253] ret_from_fork_asm+0x1a/0x30 [ 1159.965156][ T253] [ 1159.967335][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1159.967335][ T253] netdev_get_by_index+0x5e/0x80 [ 1159.967335][ T253] fib6_nh_init+0x3d8/0x1580 [ 1159.967335][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1159.967335][ T253] ip6_route_add+0x1c/0x140 [ 1159.967335][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1159.967335][ T253] inet6_addr_add+0x4f8/0xa40 [ 1159.967335][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1159.967335][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1159.967335][ T253] netlink_rcv_skb+0x130/0x360 [ 1159.967335][ T253] netlink_unicast+0x449/0x710 [ 1159.967335][ T253] netlink_sendmsg+0x723/0xbe0 [ 1159.967335][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1159.967335][ T253] ___sys_sendmsg+0xee/0x170 [ 1159.967335][ T253] __sys_sendmsg+0xcd/0x170 [ 1159.967335][ T253] do_syscall_64+0xc6/0x1e0 [ 1159.967335][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1159.967335][ T253] [ 1159.969629][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1159.969629][ T253] netdev_get_by_index+0x5e/0x80 [ 1159.969629][ T253] fib6_nh_init+0x3d8/0x1580 [ 1159.969629][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1159.969629][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1159.969629][ T253] ipv6_add_addr+0x411/0x2000 [ 1159.969629][ T253] inet6_addr_add+0x30e/0xa40 [ 1159.969629][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1159.969629][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1159.969629][ T253] netlink_rcv_skb+0x130/0x360 [ 1159.969629][ T253] netlink_unicast+0x449/0x710 [ 1159.969629][ T253] netlink_sendmsg+0x723/0xbe0 [ 1159.969629][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1159.969629][ T253] ___sys_sendmsg+0xee/0x170 [ 1159.969629][ T253] __sys_sendmsg+0xcd/0x170 [ 1159.969629][ T253] do_syscall_64+0xc6/0x1e0 [ 1159.969629][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1159.969629][ T253] [ 1159.971902][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1159.971902][ T253] netdev_get_by_index+0x5e/0x80 [ 1159.971902][ T253] fib6_nh_init+0x3d8/0x1580 [ 1159.971902][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1159.971902][ T253] ip6_route_add+0x1c/0x140 [ 1159.971902][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1159.971902][ T253] addrconf_add_dev+0xe2/0x170 [ 1159.971902][ T253] inet6_addr_add+0x12f/0xa40 [ 1159.971902][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1159.971902][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1159.971902][ T253] netlink_rcv_skb+0x130/0x360 [ 1159.971902][ T253] netlink_unicast+0x449/0x710 [ 1159.971902][ T253] netlink_sendmsg+0x723/0xbe0 [ 1159.971902][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1159.971902][ T253] ___sys_sendmsg+0xee/0x170 [ 1159.971902][ T253] __sys_sendmsg+0xcd/0x170 [ 1159.971902][ T253] do_syscall_64+0xc6/0x1e0 [ 1159.971902][ T253] [ 1159.974146][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1159.974146][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1159.974146][ T253] ipv6_find_idev+0x102/0x170 [ 1159.974146][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1159.974146][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1159.974146][ T253] netlink_rcv_skb+0x130/0x360 [ 1159.974146][ T253] netlink_unicast+0x449/0x710 [ 1159.974146][ T253] netlink_sendmsg+0x723/0xbe0 [ 1159.974146][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1159.974146][ T253] ___sys_sendmsg+0xee/0x170 [ 1159.974146][ T253] __sys_sendmsg+0xcd/0x170 [ 1159.974146][ T253] do_syscall_64+0xc6/0x1e0 [ 1159.974146][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1159.974146][ T253] [ 1159.975897][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1159.975897][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1159.975897][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1159.975897][ T253] ipv6_find_idev+0x102/0x170 [ 1159.975897][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1159.975897][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1159.975897][ T253] netlink_rcv_skb+0x130/0x360 [ 1159.975897][ T253] netlink_unicast+0x449/0x710 [ 1159.975897][ T253] netlink_sendmsg+0x723/0xbe0 [ 1159.975897][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1159.975897][ T253] ___sys_sendmsg+0xee/0x170 [ 1159.975897][ T253] __sys_sendmsg+0xcd/0x170 [ 1159.975897][ T253] do_syscall_64+0xc6/0x1e0 [ 1159.975897][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1159.975897][ T253] [ 1170.218378][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1170.218891][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1170.218891][ T253] dst_init+0x84/0x4a0 [ 1170.218891][ T253] dst_alloc+0x97/0x150 [ 1170.218891][ T253] ip6_dst_alloc+0x23/0x90 [ 1170.218891][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1170.218891][ T253] ip6_pol_route+0x56f/0x840 [ 1170.218891][ T253] fib6_rule_lookup+0x334/0x630 [ 1170.218891][ T253] ip6_route_output_flags+0x259/0x480 [ 1170.218891][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1170.218891][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1170.218891][ T253] netlink_rcv_skb+0x130/0x360 [ 1170.218891][ T253] netlink_unicast+0x449/0x710 [ 1170.218891][ T253] netlink_sendmsg+0x723/0xbe0 [ 1170.218891][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1170.218891][ T253] ___sys_sendmsg+0xee/0x170 [ 1170.218891][ T253] __sys_sendmsg+0xcd/0x170 [ 1170.218891][ T253] do_syscall_64+0xc6/0x1e0 [ 1170.218891][ T253] [ 1170.221149][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1170.221149][ T253] netdev_get_by_index+0x5e/0x80 [ 1170.221149][ T253] fib6_nh_init+0x3d8/0x1580 [ 1170.221149][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1170.221149][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1170.221149][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1170.221149][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1170.221149][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1170.221149][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1170.221149][ T253] addrconf_dad_begin+0x310/0x670 [ 1170.221149][ T253] addrconf_dad_work+0x10b/0xab0 [ 1170.221149][ T253] process_one_work+0x84d/0x18a0 [ 1170.221149][ T253] worker_thread+0x587/0xd30 [ 1170.221149][ T253] kthread+0x28a/0x350 [ 1170.221149][ T253] ret_from_fork+0x31/0x70 [ 1170.221149][ T253] ret_from_fork_asm+0x1a/0x30 [ 1170.221149][ T253] [ 1170.223377][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1170.223377][ T253] netdev_get_by_index+0x5e/0x80 [ 1170.223377][ T253] fib6_nh_init+0x3d8/0x1580 [ 1170.223377][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1170.223377][ T253] ip6_route_add+0x1c/0x140 [ 1170.223377][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1170.223377][ T253] inet6_addr_add+0x4f8/0xa40 [ 1170.223377][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1170.223377][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1170.223377][ T253] netlink_rcv_skb+0x130/0x360 [ 1170.223377][ T253] netlink_unicast+0x449/0x710 [ 1170.223377][ T253] netlink_sendmsg+0x723/0xbe0 [ 1170.223377][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1170.223377][ T253] ___sys_sendmsg+0xee/0x170 [ 1170.223377][ T253] __sys_sendmsg+0xcd/0x170 [ 1170.223377][ T253] do_syscall_64+0xc6/0x1e0 [ 1170.223377][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1170.223377][ T253] [ 1170.225693][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1170.225693][ T253] netdev_get_by_index+0x5e/0x80 [ 1170.225693][ T253] fib6_nh_init+0x3d8/0x1580 [ 1170.225693][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1170.225693][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1170.225693][ T253] ipv6_add_addr+0x411/0x2000 [ 1170.225693][ T253] inet6_addr_add+0x30e/0xa40 [ 1170.225693][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1170.225693][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1170.225693][ T253] netlink_rcv_skb+0x130/0x360 [ 1170.225693][ T253] netlink_unicast+0x449/0x710 [ 1170.225693][ T253] netlink_sendmsg+0x723/0xbe0 [ 1170.225693][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1170.225693][ T253] ___sys_sendmsg+0xee/0x170 [ 1170.225693][ T253] __sys_sendmsg+0xcd/0x170 [ 1170.225693][ T253] do_syscall_64+0xc6/0x1e0 [ 1170.225693][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1170.225693][ T253] [ 1170.227966][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1170.227966][ T253] netdev_get_by_index+0x5e/0x80 [ 1170.227966][ T253] fib6_nh_init+0x3d8/0x1580 [ 1170.227966][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1170.227966][ T253] ip6_route_add+0x1c/0x140 [ 1170.227966][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1170.227966][ T253] addrconf_add_dev+0xe2/0x170 [ 1170.227966][ T253] inet6_addr_add+0x12f/0xa40 [ 1170.227966][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1170.227966][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1170.227966][ T253] netlink_rcv_skb+0x130/0x360 [ 1170.227966][ T253] netlink_unicast+0x449/0x710 [ 1170.227966][ T253] netlink_sendmsg+0x723/0xbe0 [ 1170.227966][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1170.227966][ T253] ___sys_sendmsg+0xee/0x170 [ 1170.227966][ T253] __sys_sendmsg+0xcd/0x170 [ 1170.227966][ T253] do_syscall_64+0xc6/0x1e0 [ 1170.227966][ T253] [ 1170.230218][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1170.230218][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1170.230218][ T253] ipv6_find_idev+0x102/0x170 [ 1170.230218][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1170.230218][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1170.230218][ T253] netlink_rcv_skb+0x130/0x360 [ 1170.230218][ T253] netlink_unicast+0x449/0x710 [ 1170.230218][ T253] netlink_sendmsg+0x723/0xbe0 [ 1170.230218][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1170.230218][ T253] ___sys_sendmsg+0xee/0x170 [ 1170.230218][ T253] __sys_sendmsg+0xcd/0x170 [ 1170.230218][ T253] do_syscall_64+0xc6/0x1e0 [ 1170.230218][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1170.230218][ T253] [ 1170.231971][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1170.231971][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1170.231971][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1170.231971][ T253] ipv6_find_idev+0x102/0x170 [ 1170.231971][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1170.231971][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1170.231971][ T253] netlink_rcv_skb+0x130/0x360 [ 1170.231971][ T253] netlink_unicast+0x449/0x710 [ 1170.231971][ T253] netlink_sendmsg+0x723/0xbe0 [ 1170.231971][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1170.231971][ T253] ___sys_sendmsg+0xee/0x170 [ 1170.231971][ T253] __sys_sendmsg+0xcd/0x170 [ 1170.231971][ T253] do_syscall_64+0xc6/0x1e0 [ 1170.231971][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1170.231971][ T253] [ 1180.378314][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1180.378868][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1180.378868][ T253] dst_init+0x84/0x4a0 [ 1180.378868][ T253] dst_alloc+0x97/0x150 [ 1180.378868][ T253] ip6_dst_alloc+0x23/0x90 [ 1180.378868][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1180.378868][ T253] ip6_pol_route+0x56f/0x840 [ 1180.378868][ T253] fib6_rule_lookup+0x334/0x630 [ 1180.378868][ T253] ip6_route_output_flags+0x259/0x480 [ 1180.378868][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1180.378868][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1180.378868][ T253] netlink_rcv_skb+0x130/0x360 [ 1180.378868][ T253] netlink_unicast+0x449/0x710 [ 1180.378868][ T253] netlink_sendmsg+0x723/0xbe0 [ 1180.378868][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1180.378868][ T253] ___sys_sendmsg+0xee/0x170 [ 1180.378868][ T253] __sys_sendmsg+0xcd/0x170 [ 1180.378868][ T253] do_syscall_64+0xc6/0x1e0 [ 1180.378868][ T253] [ 1180.381117][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1180.381117][ T253] netdev_get_by_index+0x5e/0x80 [ 1180.381117][ T253] fib6_nh_init+0x3d8/0x1580 [ 1180.381117][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1180.381117][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1180.381117][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1180.381117][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1180.381117][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1180.381117][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1180.381117][ T253] addrconf_dad_begin+0x310/0x670 [ 1180.381117][ T253] addrconf_dad_work+0x10b/0xab0 [ 1180.381117][ T253] process_one_work+0x84d/0x18a0 [ 1180.381117][ T253] worker_thread+0x587/0xd30 [ 1180.381117][ T253] kthread+0x28a/0x350 [ 1180.381117][ T253] ret_from_fork+0x31/0x70 [ 1180.381117][ T253] ret_from_fork_asm+0x1a/0x30 [ 1180.381117][ T253] [ 1180.383308][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1180.383308][ T253] netdev_get_by_index+0x5e/0x80 [ 1180.383308][ T253] fib6_nh_init+0x3d8/0x1580 [ 1180.383308][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1180.383308][ T253] ip6_route_add+0x1c/0x140 [ 1180.383308][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1180.383308][ T253] inet6_addr_add+0x4f8/0xa40 [ 1180.383308][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1180.383308][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1180.383308][ T253] netlink_rcv_skb+0x130/0x360 [ 1180.383308][ T253] netlink_unicast+0x449/0x710 [ 1180.383308][ T253] netlink_sendmsg+0x723/0xbe0 [ 1180.383308][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1180.383308][ T253] ___sys_sendmsg+0xee/0x170 [ 1180.383308][ T253] __sys_sendmsg+0xcd/0x170 [ 1180.383308][ T253] do_syscall_64+0xc6/0x1e0 [ 1180.383308][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1180.383308][ T253] [ 1180.385587][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1180.385587][ T253] netdev_get_by_index+0x5e/0x80 [ 1180.385587][ T253] fib6_nh_init+0x3d8/0x1580 [ 1180.385587][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1180.385587][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1180.385587][ T253] ipv6_add_addr+0x411/0x2000 [ 1180.385587][ T253] inet6_addr_add+0x30e/0xa40 [ 1180.385587][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1180.385587][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1180.385587][ T253] netlink_rcv_skb+0x130/0x360 [ 1180.385587][ T253] netlink_unicast+0x449/0x710 [ 1180.385587][ T253] netlink_sendmsg+0x723/0xbe0 [ 1180.385587][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1180.385587][ T253] ___sys_sendmsg+0xee/0x170 [ 1180.385587][ T253] __sys_sendmsg+0xcd/0x170 [ 1180.385587][ T253] do_syscall_64+0xc6/0x1e0 [ 1180.385587][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1180.385587][ T253] [ 1180.387863][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1180.387863][ T253] netdev_get_by_index+0x5e/0x80 [ 1180.387863][ T253] fib6_nh_init+0x3d8/0x1580 [ 1180.387863][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1180.387863][ T253] ip6_route_add+0x1c/0x140 [ 1180.387863][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1180.387863][ T253] addrconf_add_dev+0xe2/0x170 [ 1180.387863][ T253] inet6_addr_add+0x12f/0xa40 [ 1180.387863][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1180.387863][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1180.387863][ T253] netlink_rcv_skb+0x130/0x360 [ 1180.387863][ T253] netlink_unicast+0x449/0x710 [ 1180.387863][ T253] netlink_sendmsg+0x723/0xbe0 [ 1180.387863][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1180.387863][ T253] ___sys_sendmsg+0xee/0x170 [ 1180.387863][ T253] __sys_sendmsg+0xcd/0x170 [ 1180.387863][ T253] do_syscall_64+0xc6/0x1e0 [ 1180.387863][ T253] [ 1180.390090][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1180.390090][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1180.390090][ T253] ipv6_find_idev+0x102/0x170 [ 1180.390090][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1180.390090][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1180.390090][ T253] netlink_rcv_skb+0x130/0x360 [ 1180.390090][ T253] netlink_unicast+0x449/0x710 [ 1180.390090][ T253] netlink_sendmsg+0x723/0xbe0 [ 1180.390090][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1180.390090][ T253] ___sys_sendmsg+0xee/0x170 [ 1180.390090][ T253] __sys_sendmsg+0xcd/0x170 [ 1180.390090][ T253] do_syscall_64+0xc6/0x1e0 [ 1180.390090][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1180.390090][ T253] [ 1180.391841][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1180.391841][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1180.391841][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1180.391841][ T253] ipv6_find_idev+0x102/0x170 [ 1180.391841][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1180.391841][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1180.391841][ T253] netlink_rcv_skb+0x130/0x360 [ 1180.391841][ T253] netlink_unicast+0x449/0x710 [ 1180.391841][ T253] netlink_sendmsg+0x723/0xbe0 [ 1180.391841][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1180.391841][ T253] ___sys_sendmsg+0xee/0x170 [ 1180.391841][ T253] __sys_sendmsg+0xcd/0x170 [ 1180.391841][ T253] do_syscall_64+0xc6/0x1e0 [ 1180.391841][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1180.391841][ T253] [ 1190.426298][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1190.426870][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1190.426870][ T253] dst_init+0x84/0x4a0 [ 1190.426870][ T253] dst_alloc+0x97/0x150 [ 1190.426870][ T253] ip6_dst_alloc+0x23/0x90 [ 1190.426870][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1190.426870][ T253] ip6_pol_route+0x56f/0x840 [ 1190.426870][ T253] fib6_rule_lookup+0x334/0x630 [ 1190.426870][ T253] ip6_route_output_flags+0x259/0x480 [ 1190.426870][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1190.426870][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1190.426870][ T253] netlink_rcv_skb+0x130/0x360 [ 1190.426870][ T253] netlink_unicast+0x449/0x710 [ 1190.426870][ T253] netlink_sendmsg+0x723/0xbe0 [ 1190.426870][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1190.426870][ T253] ___sys_sendmsg+0xee/0x170 [ 1190.426870][ T253] __sys_sendmsg+0xcd/0x170 [ 1190.426870][ T253] do_syscall_64+0xc6/0x1e0 [ 1190.426870][ T253] [ 1190.429224][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1190.429224][ T253] netdev_get_by_index+0x5e/0x80 [ 1190.429224][ T253] fib6_nh_init+0x3d8/0x1580 [ 1190.429224][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1190.429224][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1190.429224][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1190.429224][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1190.429224][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1190.429224][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1190.429224][ T253] addrconf_dad_begin+0x310/0x670 [ 1190.429224][ T253] addrconf_dad_work+0x10b/0xab0 [ 1190.429224][ T253] process_one_work+0x84d/0x18a0 [ 1190.429224][ T253] worker_thread+0x587/0xd30 [ 1190.429224][ T253] kthread+0x28a/0x350 [ 1190.429224][ T253] ret_from_fork+0x31/0x70 [ 1190.429224][ T253] ret_from_fork_asm+0x1a/0x30 [ 1190.429224][ T253] [ 1190.431441][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1190.431441][ T253] netdev_get_by_index+0x5e/0x80 [ 1190.431441][ T253] fib6_nh_init+0x3d8/0x1580 [ 1190.431441][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1190.431441][ T253] ip6_route_add+0x1c/0x140 [ 1190.431441][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1190.431441][ T253] inet6_addr_add+0x4f8/0xa40 [ 1190.431441][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1190.431441][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1190.431441][ T253] netlink_rcv_skb+0x130/0x360 [ 1190.431441][ T253] netlink_unicast+0x449/0x710 [ 1190.431441][ T253] netlink_sendmsg+0x723/0xbe0 [ 1190.431441][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1190.431441][ T253] ___sys_sendmsg+0xee/0x170 [ 1190.431441][ T253] __sys_sendmsg+0xcd/0x170 [ 1190.431441][ T253] do_syscall_64+0xc6/0x1e0 [ 1190.431441][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1190.431441][ T253] [ 1190.433755][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1190.433755][ T253] netdev_get_by_index+0x5e/0x80 [ 1190.433755][ T253] fib6_nh_init+0x3d8/0x1580 [ 1190.433755][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1190.433755][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1190.433755][ T253] ipv6_add_addr+0x411/0x2000 [ 1190.433755][ T253] inet6_addr_add+0x30e/0xa40 [ 1190.433755][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1190.433755][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1190.433755][ T253] netlink_rcv_skb+0x130/0x360 [ 1190.433755][ T253] netlink_unicast+0x449/0x710 [ 1190.433755][ T253] netlink_sendmsg+0x723/0xbe0 [ 1190.433755][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1190.433755][ T253] ___sys_sendmsg+0xee/0x170 [ 1190.433755][ T253] __sys_sendmsg+0xcd/0x170 [ 1190.433755][ T253] do_syscall_64+0xc6/0x1e0 [ 1190.433755][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1190.433755][ T253] [ 1190.436068][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1190.436068][ T253] netdev_get_by_index+0x5e/0x80 [ 1190.436068][ T253] fib6_nh_init+0x3d8/0x1580 [ 1190.436068][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1190.436068][ T253] ip6_route_add+0x1c/0x140 [ 1190.436068][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1190.436068][ T253] addrconf_add_dev+0xe2/0x170 [ 1190.436068][ T253] inet6_addr_add+0x12f/0xa40 [ 1190.436068][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1190.436068][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1190.436068][ T253] netlink_rcv_skb+0x130/0x360 [ 1190.436068][ T253] netlink_unicast+0x449/0x710 [ 1190.436068][ T253] netlink_sendmsg+0x723/0xbe0 [ 1190.436068][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1190.436068][ T253] ___sys_sendmsg+0xee/0x170 [ 1190.436068][ T253] __sys_sendmsg+0xcd/0x170 [ 1190.436068][ T253] do_syscall_64+0xc6/0x1e0 [ 1190.436068][ T253] [ 1190.438338][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1190.438338][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1190.438338][ T253] ipv6_find_idev+0x102/0x170 [ 1190.438338][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1190.438338][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1190.438338][ T253] netlink_rcv_skb+0x130/0x360 [ 1190.438338][ T253] netlink_unicast+0x449/0x710 [ 1190.438338][ T253] netlink_sendmsg+0x723/0xbe0 [ 1190.438338][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1190.438338][ T253] ___sys_sendmsg+0xee/0x170 [ 1190.438338][ T253] __sys_sendmsg+0xcd/0x170 [ 1190.438338][ T253] do_syscall_64+0xc6/0x1e0 [ 1190.438338][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1190.438338][ T253] [ 1190.440118][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1190.440118][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1190.440118][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1190.440118][ T253] ipv6_find_idev+0x102/0x170 [ 1190.440118][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1190.440118][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1190.440118][ T253] netlink_rcv_skb+0x130/0x360 [ 1190.440118][ T253] netlink_unicast+0x449/0x710 [ 1190.440118][ T253] netlink_sendmsg+0x723/0xbe0 [ 1190.440118][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1190.440118][ T253] ___sys_sendmsg+0xee/0x170 [ 1190.440118][ T253] __sys_sendmsg+0xcd/0x170 [ 1190.440118][ T253] do_syscall_64+0xc6/0x1e0 [ 1190.440118][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1190.440118][ T253] [ 1200.690316][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1200.690860][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1200.690860][ T253] dst_init+0x84/0x4a0 [ 1200.690860][ T253] dst_alloc+0x97/0x150 [ 1200.690860][ T253] ip6_dst_alloc+0x23/0x90 [ 1200.690860][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1200.690860][ T253] ip6_pol_route+0x56f/0x840 [ 1200.690860][ T253] fib6_rule_lookup+0x334/0x630 [ 1200.690860][ T253] ip6_route_output_flags+0x259/0x480 [ 1200.690860][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1200.690860][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1200.690860][ T253] netlink_rcv_skb+0x130/0x360 [ 1200.690860][ T253] netlink_unicast+0x449/0x710 [ 1200.690860][ T253] netlink_sendmsg+0x723/0xbe0 [ 1200.690860][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1200.690860][ T253] ___sys_sendmsg+0xee/0x170 [ 1200.690860][ T253] __sys_sendmsg+0xcd/0x170 [ 1200.690860][ T253] do_syscall_64+0xc6/0x1e0 [ 1200.690860][ T253] [ 1200.693073][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1200.693073][ T253] netdev_get_by_index+0x5e/0x80 [ 1200.693073][ T253] fib6_nh_init+0x3d8/0x1580 [ 1200.693073][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1200.693073][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1200.693073][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1200.693073][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1200.693073][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1200.693073][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1200.693073][ T253] addrconf_dad_begin+0x310/0x670 [ 1200.693073][ T253] addrconf_dad_work+0x10b/0xab0 [ 1200.693073][ T253] process_one_work+0x84d/0x18a0 [ 1200.693073][ T253] worker_thread+0x587/0xd30 [ 1200.693073][ T253] kthread+0x28a/0x350 [ 1200.693073][ T253] ret_from_fork+0x31/0x70 [ 1200.693073][ T253] ret_from_fork_asm+0x1a/0x30 [ 1200.693073][ T253] [ 1200.695229][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1200.695229][ T253] netdev_get_by_index+0x5e/0x80 [ 1200.695229][ T253] fib6_nh_init+0x3d8/0x1580 [ 1200.695229][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1200.695229][ T253] ip6_route_add+0x1c/0x140 [ 1200.695229][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1200.695229][ T253] inet6_addr_add+0x4f8/0xa40 [ 1200.695229][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1200.695229][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1200.695229][ T253] netlink_rcv_skb+0x130/0x360 [ 1200.695229][ T253] netlink_unicast+0x449/0x710 [ 1200.695229][ T253] netlink_sendmsg+0x723/0xbe0 [ 1200.695229][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1200.695229][ T253] ___sys_sendmsg+0xee/0x170 [ 1200.695229][ T253] __sys_sendmsg+0xcd/0x170 [ 1200.695229][ T253] do_syscall_64+0xc6/0x1e0 [ 1200.695229][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1200.695229][ T253] [ 1200.697475][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1200.697475][ T253] netdev_get_by_index+0x5e/0x80 [ 1200.697475][ T253] fib6_nh_init+0x3d8/0x1580 [ 1200.697475][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1200.697475][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1200.697475][ T253] ipv6_add_addr+0x411/0x2000 [ 1200.697475][ T253] inet6_addr_add+0x30e/0xa40 [ 1200.697475][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1200.697475][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1200.697475][ T253] netlink_rcv_skb+0x130/0x360 [ 1200.697475][ T253] netlink_unicast+0x449/0x710 [ 1200.697475][ T253] netlink_sendmsg+0x723/0xbe0 [ 1200.697475][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1200.697475][ T253] ___sys_sendmsg+0xee/0x170 [ 1200.697475][ T253] __sys_sendmsg+0xcd/0x170 [ 1200.697475][ T253] do_syscall_64+0xc6/0x1e0 [ 1200.697475][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1200.697475][ T253] [ 1200.699719][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1200.699719][ T253] netdev_get_by_index+0x5e/0x80 [ 1200.699719][ T253] fib6_nh_init+0x3d8/0x1580 [ 1200.699719][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1200.699719][ T253] ip6_route_add+0x1c/0x140 [ 1200.699719][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1200.699719][ T253] addrconf_add_dev+0xe2/0x170 [ 1200.699719][ T253] inet6_addr_add+0x12f/0xa40 [ 1200.699719][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1200.699719][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1200.699719][ T253] netlink_rcv_skb+0x130/0x360 [ 1200.699719][ T253] netlink_unicast+0x449/0x710 [ 1200.699719][ T253] netlink_sendmsg+0x723/0xbe0 [ 1200.699719][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1200.699719][ T253] ___sys_sendmsg+0xee/0x170 [ 1200.699719][ T253] __sys_sendmsg+0xcd/0x170 [ 1200.699719][ T253] do_syscall_64+0xc6/0x1e0 [ 1200.699719][ T253] [ 1200.701924][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1200.701924][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1200.701924][ T253] ipv6_find_idev+0x102/0x170 [ 1200.701924][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1200.701924][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1200.701924][ T253] netlink_rcv_skb+0x130/0x360 [ 1200.701924][ T253] netlink_unicast+0x449/0x710 [ 1200.701924][ T253] netlink_sendmsg+0x723/0xbe0 [ 1200.701924][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1200.701924][ T253] ___sys_sendmsg+0xee/0x170 [ 1200.701924][ T253] __sys_sendmsg+0xcd/0x170 [ 1200.701924][ T253] do_syscall_64+0xc6/0x1e0 [ 1200.701924][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1200.701924][ T253] [ 1200.703656][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1200.703656][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1200.703656][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1200.703656][ T253] ipv6_find_idev+0x102/0x170 [ 1200.703656][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1200.703656][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1200.703656][ T253] netlink_rcv_skb+0x130/0x360 [ 1200.703656][ T253] netlink_unicast+0x449/0x710 [ 1200.703656][ T253] netlink_sendmsg+0x723/0xbe0 [ 1200.703656][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1200.703656][ T253] ___sys_sendmsg+0xee/0x170 [ 1200.703656][ T253] __sys_sendmsg+0xcd/0x170 [ 1200.703656][ T253] do_syscall_64+0xc6/0x1e0 [ 1200.703656][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1200.703656][ T253] [ 1210.954335][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1210.954878][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1210.954878][ T253] dst_init+0x84/0x4a0 [ 1210.954878][ T253] dst_alloc+0x97/0x150 [ 1210.954878][ T253] ip6_dst_alloc+0x23/0x90 [ 1210.954878][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1210.954878][ T253] ip6_pol_route+0x56f/0x840 [ 1210.954878][ T253] fib6_rule_lookup+0x334/0x630 [ 1210.954878][ T253] ip6_route_output_flags+0x259/0x480 [ 1210.954878][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1210.954878][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1210.954878][ T253] netlink_rcv_skb+0x130/0x360 [ 1210.954878][ T253] netlink_unicast+0x449/0x710 [ 1210.954878][ T253] netlink_sendmsg+0x723/0xbe0 [ 1210.954878][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1210.954878][ T253] ___sys_sendmsg+0xee/0x170 [ 1210.954878][ T253] __sys_sendmsg+0xcd/0x170 [ 1210.954878][ T253] do_syscall_64+0xc6/0x1e0 [ 1210.954878][ T253] [ 1210.957095][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1210.957095][ T253] netdev_get_by_index+0x5e/0x80 [ 1210.957095][ T253] fib6_nh_init+0x3d8/0x1580 [ 1210.957095][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1210.957095][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1210.957095][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1210.957095][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1210.957095][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1210.957095][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1210.957095][ T253] addrconf_dad_begin+0x310/0x670 [ 1210.957095][ T253] addrconf_dad_work+0x10b/0xab0 [ 1210.957095][ T253] process_one_work+0x84d/0x18a0 [ 1210.957095][ T253] worker_thread+0x587/0xd30 [ 1210.957095][ T253] kthread+0x28a/0x350 [ 1210.957095][ T253] ret_from_fork+0x31/0x70 [ 1210.957095][ T253] ret_from_fork_asm+0x1a/0x30 [ 1210.957095][ T253] [ 1210.959243][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1210.959243][ T253] netdev_get_by_index+0x5e/0x80 [ 1210.959243][ T253] fib6_nh_init+0x3d8/0x1580 [ 1210.959243][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1210.959243][ T253] ip6_route_add+0x1c/0x140 [ 1210.959243][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1210.959243][ T253] inet6_addr_add+0x4f8/0xa40 [ 1210.959243][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1210.959243][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1210.959243][ T253] netlink_rcv_skb+0x130/0x360 [ 1210.959243][ T253] netlink_unicast+0x449/0x710 [ 1210.959243][ T253] netlink_sendmsg+0x723/0xbe0 [ 1210.959243][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1210.959243][ T253] ___sys_sendmsg+0xee/0x170 [ 1210.959243][ T253] __sys_sendmsg+0xcd/0x170 [ 1210.959243][ T253] do_syscall_64+0xc6/0x1e0 [ 1210.959243][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1210.959243][ T253] [ 1210.961485][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1210.961485][ T253] netdev_get_by_index+0x5e/0x80 [ 1210.961485][ T253] fib6_nh_init+0x3d8/0x1580 [ 1210.961485][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1210.961485][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1210.961485][ T253] ipv6_add_addr+0x411/0x2000 [ 1210.961485][ T253] inet6_addr_add+0x30e/0xa40 [ 1210.961485][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1210.961485][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1210.961485][ T253] netlink_rcv_skb+0x130/0x360 [ 1210.961485][ T253] netlink_unicast+0x449/0x710 [ 1210.961485][ T253] netlink_sendmsg+0x723/0xbe0 [ 1210.961485][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1210.961485][ T253] ___sys_sendmsg+0xee/0x170 [ 1210.961485][ T253] __sys_sendmsg+0xcd/0x170 [ 1210.961485][ T253] do_syscall_64+0xc6/0x1e0 [ 1210.961485][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1210.961485][ T253] [ 1210.963748][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1210.963748][ T253] netdev_get_by_index+0x5e/0x80 [ 1210.963748][ T253] fib6_nh_init+0x3d8/0x1580 [ 1210.963748][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1210.963748][ T253] ip6_route_add+0x1c/0x140 [ 1210.963748][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1210.963748][ T253] addrconf_add_dev+0xe2/0x170 [ 1210.963748][ T253] inet6_addr_add+0x12f/0xa40 [ 1210.963748][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1210.963748][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1210.963748][ T253] netlink_rcv_skb+0x130/0x360 [ 1210.963748][ T253] netlink_unicast+0x449/0x710 [ 1210.963748][ T253] netlink_sendmsg+0x723/0xbe0 [ 1210.963748][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1210.963748][ T253] ___sys_sendmsg+0xee/0x170 [ 1210.963748][ T253] __sys_sendmsg+0xcd/0x170 [ 1210.963748][ T253] do_syscall_64+0xc6/0x1e0 [ 1210.963748][ T253] [ 1210.965949][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1210.965949][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1210.965949][ T253] ipv6_find_idev+0x102/0x170 [ 1210.965949][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1210.965949][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1210.965949][ T253] netlink_rcv_skb+0x130/0x360 [ 1210.965949][ T253] netlink_unicast+0x449/0x710 [ 1210.965949][ T253] netlink_sendmsg+0x723/0xbe0 [ 1210.965949][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1210.965949][ T253] ___sys_sendmsg+0xee/0x170 [ 1210.965949][ T253] __sys_sendmsg+0xcd/0x170 [ 1210.965949][ T253] do_syscall_64+0xc6/0x1e0 [ 1210.965949][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1210.965949][ T253] [ 1210.968046][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1210.968046][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1210.968046][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1210.968046][ T253] ipv6_find_idev+0x102/0x170 [ 1210.968046][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1210.968046][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1210.968046][ T253] netlink_rcv_skb+0x130/0x360 [ 1210.968046][ T253] netlink_unicast+0x449/0x710 [ 1210.968046][ T253] netlink_sendmsg+0x723/0xbe0 [ 1210.968046][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1210.968046][ T253] ___sys_sendmsg+0xee/0x170 [ 1210.968046][ T253] __sys_sendmsg+0xcd/0x170 [ 1210.968046][ T253] do_syscall_64+0xc6/0x1e0 [ 1210.968046][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1210.968046][ T253] [ 1221.074360][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1221.074931][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1221.074931][ T253] dst_init+0x84/0x4a0 [ 1221.074931][ T253] dst_alloc+0x97/0x150 [ 1221.074931][ T253] ip6_dst_alloc+0x23/0x90 [ 1221.074931][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1221.074931][ T253] ip6_pol_route+0x56f/0x840 [ 1221.074931][ T253] fib6_rule_lookup+0x334/0x630 [ 1221.074931][ T253] ip6_route_output_flags+0x259/0x480 [ 1221.074931][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1221.074931][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1221.074931][ T253] netlink_rcv_skb+0x130/0x360 [ 1221.074931][ T253] netlink_unicast+0x449/0x710 [ 1221.074931][ T253] netlink_sendmsg+0x723/0xbe0 [ 1221.074931][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1221.074931][ T253] ___sys_sendmsg+0xee/0x170 [ 1221.074931][ T253] __sys_sendmsg+0xcd/0x170 [ 1221.074931][ T253] do_syscall_64+0xc6/0x1e0 [ 1221.074931][ T253] [ 1221.077206][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1221.077206][ T253] netdev_get_by_index+0x5e/0x80 [ 1221.077206][ T253] fib6_nh_init+0x3d8/0x1580 [ 1221.077206][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1221.077206][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1221.077206][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1221.077206][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1221.077206][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1221.077206][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1221.077206][ T253] addrconf_dad_begin+0x310/0x670 [ 1221.077206][ T253] addrconf_dad_work+0x10b/0xab0 [ 1221.077206][ T253] process_one_work+0x84d/0x18a0 [ 1221.077206][ T253] worker_thread+0x587/0xd30 [ 1221.077206][ T253] kthread+0x28a/0x350 [ 1221.077206][ T253] ret_from_fork+0x31/0x70 [ 1221.077206][ T253] ret_from_fork_asm+0x1a/0x30 [ 1221.077206][ T253] [ 1221.079414][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1221.079414][ T253] netdev_get_by_index+0x5e/0x80 [ 1221.079414][ T253] fib6_nh_init+0x3d8/0x1580 [ 1221.079414][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1221.079414][ T253] ip6_route_add+0x1c/0x140 [ 1221.079414][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1221.079414][ T253] inet6_addr_add+0x4f8/0xa40 [ 1221.079414][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1221.079414][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1221.079414][ T253] netlink_rcv_skb+0x130/0x360 [ 1221.079414][ T253] netlink_unicast+0x449/0x710 [ 1221.079414][ T253] netlink_sendmsg+0x723/0xbe0 [ 1221.079414][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1221.079414][ T253] ___sys_sendmsg+0xee/0x170 [ 1221.079414][ T253] __sys_sendmsg+0xcd/0x170 [ 1221.079414][ T253] do_syscall_64+0xc6/0x1e0 [ 1221.079414][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1221.079414][ T253] [ 1221.081724][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1221.081724][ T253] netdev_get_by_index+0x5e/0x80 [ 1221.081724][ T253] fib6_nh_init+0x3d8/0x1580 [ 1221.081724][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1221.081724][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1221.081724][ T253] ipv6_add_addr+0x411/0x2000 [ 1221.081724][ T253] inet6_addr_add+0x30e/0xa40 [ 1221.081724][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1221.081724][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1221.081724][ T253] netlink_rcv_skb+0x130/0x360 [ 1221.081724][ T253] netlink_unicast+0x449/0x710 [ 1221.081724][ T253] netlink_sendmsg+0x723/0xbe0 [ 1221.081724][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1221.081724][ T253] ___sys_sendmsg+0xee/0x170 [ 1221.081724][ T253] __sys_sendmsg+0xcd/0x170 [ 1221.081724][ T253] do_syscall_64+0xc6/0x1e0 [ 1221.081724][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1221.081724][ T253] [ 1221.084051][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1221.084051][ T253] netdev_get_by_index+0x5e/0x80 [ 1221.084051][ T253] fib6_nh_init+0x3d8/0x1580 [ 1221.084051][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1221.084051][ T253] ip6_route_add+0x1c/0x140 [ 1221.084051][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1221.084051][ T253] addrconf_add_dev+0xe2/0x170 [ 1221.084051][ T253] inet6_addr_add+0x12f/0xa40 [ 1221.084051][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1221.084051][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1221.084051][ T253] netlink_rcv_skb+0x130/0x360 [ 1221.084051][ T253] netlink_unicast+0x449/0x710 [ 1221.084051][ T253] netlink_sendmsg+0x723/0xbe0 [ 1221.084051][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1221.084051][ T253] ___sys_sendmsg+0xee/0x170 [ 1221.084051][ T253] __sys_sendmsg+0xcd/0x170 [ 1221.084051][ T253] do_syscall_64+0xc6/0x1e0 [ 1221.084051][ T253] [ 1221.086327][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1221.086327][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1221.086327][ T253] ipv6_find_idev+0x102/0x170 [ 1221.086327][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1221.086327][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1221.086327][ T253] netlink_rcv_skb+0x130/0x360 [ 1221.086327][ T253] netlink_unicast+0x449/0x710 [ 1221.086327][ T253] netlink_sendmsg+0x723/0xbe0 [ 1221.086327][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1221.086327][ T253] ___sys_sendmsg+0xee/0x170 [ 1221.086327][ T253] __sys_sendmsg+0xcd/0x170 [ 1221.086327][ T253] do_syscall_64+0xc6/0x1e0 [ 1221.086327][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1221.086327][ T253] [ 1221.088104][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1221.088104][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1221.088104][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1221.088104][ T253] ipv6_find_idev+0x102/0x170 [ 1221.088104][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1221.088104][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1221.088104][ T253] netlink_rcv_skb+0x130/0x360 [ 1221.088104][ T253] netlink_unicast+0x449/0x710 [ 1221.088104][ T253] netlink_sendmsg+0x723/0xbe0 [ 1221.088104][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1221.088104][ T253] ___sys_sendmsg+0xee/0x170 [ 1221.088104][ T253] __sys_sendmsg+0xcd/0x170 [ 1221.088104][ T253] do_syscall_64+0xc6/0x1e0 [ 1221.088104][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1221.088104][ T253] [ 1231.290385][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1231.290987][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1231.290987][ T253] dst_init+0x84/0x4a0 [ 1231.290987][ T253] dst_alloc+0x97/0x150 [ 1231.290987][ T253] ip6_dst_alloc+0x23/0x90 [ 1231.290987][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1231.290987][ T253] ip6_pol_route+0x56f/0x840 [ 1231.290987][ T253] fib6_rule_lookup+0x334/0x630 [ 1231.290987][ T253] ip6_route_output_flags+0x259/0x480 [ 1231.290987][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1231.290987][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1231.290987][ T253] netlink_rcv_skb+0x130/0x360 [ 1231.290987][ T253] netlink_unicast+0x449/0x710 [ 1231.290987][ T253] netlink_sendmsg+0x723/0xbe0 [ 1231.290987][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1231.290987][ T253] ___sys_sendmsg+0xee/0x170 [ 1231.290987][ T253] __sys_sendmsg+0xcd/0x170 [ 1231.290987][ T253] do_syscall_64+0xc6/0x1e0 [ 1231.290987][ T253] [ 1231.293269][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1231.293269][ T253] netdev_get_by_index+0x5e/0x80 [ 1231.293269][ T253] fib6_nh_init+0x3d8/0x1580 [ 1231.293269][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1231.293269][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1231.293269][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1231.293269][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1231.293269][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1231.293269][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1231.293269][ T253] addrconf_dad_begin+0x310/0x670 [ 1231.293269][ T253] addrconf_dad_work+0x10b/0xab0 [ 1231.293269][ T253] process_one_work+0x84d/0x18a0 [ 1231.293269][ T253] worker_thread+0x587/0xd30 [ 1231.293269][ T253] kthread+0x28a/0x350 [ 1231.293269][ T253] ret_from_fork+0x31/0x70 [ 1231.293269][ T253] ret_from_fork_asm+0x1a/0x30 [ 1231.293269][ T253] [ 1231.295498][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1231.295498][ T253] netdev_get_by_index+0x5e/0x80 [ 1231.295498][ T253] fib6_nh_init+0x3d8/0x1580 [ 1231.295498][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1231.295498][ T253] ip6_route_add+0x1c/0x140 [ 1231.295498][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1231.295498][ T253] inet6_addr_add+0x4f8/0xa40 [ 1231.295498][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1231.295498][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1231.295498][ T253] netlink_rcv_skb+0x130/0x360 [ 1231.295498][ T253] netlink_unicast+0x449/0x710 [ 1231.295498][ T253] netlink_sendmsg+0x723/0xbe0 [ 1231.295498][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1231.295498][ T253] ___sys_sendmsg+0xee/0x170 [ 1231.295498][ T253] __sys_sendmsg+0xcd/0x170 [ 1231.295498][ T253] do_syscall_64+0xc6/0x1e0 [ 1231.295498][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1231.295498][ T253] [ 1231.297805][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1231.297805][ T253] netdev_get_by_index+0x5e/0x80 [ 1231.297805][ T253] fib6_nh_init+0x3d8/0x1580 [ 1231.297805][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1231.297805][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1231.297805][ T253] ipv6_add_addr+0x411/0x2000 [ 1231.297805][ T253] inet6_addr_add+0x30e/0xa40 [ 1231.297805][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1231.297805][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1231.297805][ T253] netlink_rcv_skb+0x130/0x360 [ 1231.297805][ T253] netlink_unicast+0x449/0x710 [ 1231.297805][ T253] netlink_sendmsg+0x723/0xbe0 [ 1231.297805][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1231.297805][ T253] ___sys_sendmsg+0xee/0x170 [ 1231.297805][ T253] __sys_sendmsg+0xcd/0x170 [ 1231.297805][ T253] do_syscall_64+0xc6/0x1e0 [ 1231.297805][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1231.297805][ T253] [ 1231.300122][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1231.300122][ T253] netdev_get_by_index+0x5e/0x80 [ 1231.300122][ T253] fib6_nh_init+0x3d8/0x1580 [ 1231.300122][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1231.300122][ T253] ip6_route_add+0x1c/0x140 [ 1231.300122][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1231.300122][ T253] addrconf_add_dev+0xe2/0x170 [ 1231.300122][ T253] inet6_addr_add+0x12f/0xa40 [ 1231.300122][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1231.300122][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1231.300122][ T253] netlink_rcv_skb+0x130/0x360 [ 1231.300122][ T253] netlink_unicast+0x449/0x710 [ 1231.300122][ T253] netlink_sendmsg+0x723/0xbe0 [ 1231.300122][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1231.300122][ T253] ___sys_sendmsg+0xee/0x170 [ 1231.300122][ T253] __sys_sendmsg+0xcd/0x170 [ 1231.300122][ T253] do_syscall_64+0xc6/0x1e0 [ 1231.300122][ T253] [ 1231.302407][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1231.302407][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1231.302407][ T253] ipv6_find_idev+0x102/0x170 [ 1231.302407][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1231.302407][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1231.302407][ T253] netlink_rcv_skb+0x130/0x360 [ 1231.302407][ T253] netlink_unicast+0x449/0x710 [ 1231.302407][ T253] netlink_sendmsg+0x723/0xbe0 [ 1231.302407][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1231.302407][ T253] ___sys_sendmsg+0xee/0x170 [ 1231.302407][ T253] __sys_sendmsg+0xcd/0x170 [ 1231.302407][ T253] do_syscall_64+0xc6/0x1e0 [ 1231.302407][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1231.302407][ T253] [ 1231.304191][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1231.304191][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1231.304191][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1231.304191][ T253] ipv6_find_idev+0x102/0x170 [ 1231.304191][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1231.304191][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1231.304191][ T253] netlink_rcv_skb+0x130/0x360 [ 1231.304191][ T253] netlink_unicast+0x449/0x710 [ 1231.304191][ T253] netlink_sendmsg+0x723/0xbe0 [ 1231.304191][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1231.304191][ T253] ___sys_sendmsg+0xee/0x170 [ 1231.304191][ T253] __sys_sendmsg+0xcd/0x170 [ 1231.304191][ T253] do_syscall_64+0xc6/0x1e0 [ 1231.304191][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1231.304191][ T253] [ 1241.546350][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1241.546868][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1241.546868][ T253] dst_init+0x84/0x4a0 [ 1241.546868][ T253] dst_alloc+0x97/0x150 [ 1241.546868][ T253] ip6_dst_alloc+0x23/0x90 [ 1241.546868][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1241.546868][ T253] ip6_pol_route+0x56f/0x840 [ 1241.546868][ T253] fib6_rule_lookup+0x334/0x630 [ 1241.546868][ T253] ip6_route_output_flags+0x259/0x480 [ 1241.546868][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1241.546868][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1241.546868][ T253] netlink_rcv_skb+0x130/0x360 [ 1241.546868][ T253] netlink_unicast+0x449/0x710 [ 1241.546868][ T253] netlink_sendmsg+0x723/0xbe0 [ 1241.546868][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1241.546868][ T253] ___sys_sendmsg+0xee/0x170 [ 1241.546868][ T253] __sys_sendmsg+0xcd/0x170 [ 1241.546868][ T253] do_syscall_64+0xc6/0x1e0 [ 1241.546868][ T253] [ 1241.549131][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1241.549131][ T253] netdev_get_by_index+0x5e/0x80 [ 1241.549131][ T253] fib6_nh_init+0x3d8/0x1580 [ 1241.549131][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1241.549131][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1241.549131][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1241.549131][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1241.549131][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1241.549131][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1241.549131][ T253] addrconf_dad_begin+0x310/0x670 [ 1241.549131][ T253] addrconf_dad_work+0x10b/0xab0 [ 1241.549131][ T253] process_one_work+0x84d/0x18a0 [ 1241.549131][ T253] worker_thread+0x587/0xd30 [ 1241.549131][ T253] kthread+0x28a/0x350 [ 1241.549131][ T253] ret_from_fork+0x31/0x70 [ 1241.549131][ T253] ret_from_fork_asm+0x1a/0x30 [ 1241.549131][ T253] [ 1241.551321][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1241.551321][ T253] netdev_get_by_index+0x5e/0x80 [ 1241.551321][ T253] fib6_nh_init+0x3d8/0x1580 [ 1241.551321][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1241.551321][ T253] ip6_route_add+0x1c/0x140 [ 1241.551321][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1241.551321][ T253] inet6_addr_add+0x4f8/0xa40 [ 1241.551321][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1241.551321][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1241.551321][ T253] netlink_rcv_skb+0x130/0x360 [ 1241.551321][ T253] netlink_unicast+0x449/0x710 [ 1241.551321][ T253] netlink_sendmsg+0x723/0xbe0 [ 1241.551321][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1241.551321][ T253] ___sys_sendmsg+0xee/0x170 [ 1241.551321][ T253] __sys_sendmsg+0xcd/0x170 [ 1241.551321][ T253] do_syscall_64+0xc6/0x1e0 [ 1241.551321][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1241.551321][ T253] [ 1241.553614][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1241.553614][ T253] netdev_get_by_index+0x5e/0x80 [ 1241.553614][ T253] fib6_nh_init+0x3d8/0x1580 [ 1241.553614][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1241.553614][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1241.553614][ T253] ipv6_add_addr+0x411/0x2000 [ 1241.553614][ T253] inet6_addr_add+0x30e/0xa40 [ 1241.553614][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1241.553614][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1241.553614][ T253] netlink_rcv_skb+0x130/0x360 [ 1241.553614][ T253] netlink_unicast+0x449/0x710 [ 1241.553614][ T253] netlink_sendmsg+0x723/0xbe0 [ 1241.553614][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1241.553614][ T253] ___sys_sendmsg+0xee/0x170 [ 1241.553614][ T253] __sys_sendmsg+0xcd/0x170 [ 1241.553614][ T253] do_syscall_64+0xc6/0x1e0 [ 1241.553614][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1241.553614][ T253] [ 1241.555898][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1241.555898][ T253] netdev_get_by_index+0x5e/0x80 [ 1241.555898][ T253] fib6_nh_init+0x3d8/0x1580 [ 1241.555898][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1241.555898][ T253] ip6_route_add+0x1c/0x140 [ 1241.555898][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1241.555898][ T253] addrconf_add_dev+0xe2/0x170 [ 1241.555898][ T253] inet6_addr_add+0x12f/0xa40 [ 1241.555898][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1241.555898][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1241.555898][ T253] netlink_rcv_skb+0x130/0x360 [ 1241.555898][ T253] netlink_unicast+0x449/0x710 [ 1241.555898][ T253] netlink_sendmsg+0x723/0xbe0 [ 1241.555898][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1241.555898][ T253] ___sys_sendmsg+0xee/0x170 [ 1241.555898][ T253] __sys_sendmsg+0xcd/0x170 [ 1241.555898][ T253] do_syscall_64+0xc6/0x1e0 [ 1241.555898][ T253] [ 1241.558138][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1241.558138][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1241.558138][ T253] ipv6_find_idev+0x102/0x170 [ 1241.558138][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1241.558138][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1241.558138][ T253] netlink_rcv_skb+0x130/0x360 [ 1241.558138][ T253] netlink_unicast+0x449/0x710 [ 1241.558138][ T253] netlink_sendmsg+0x723/0xbe0 [ 1241.558138][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1241.558138][ T253] ___sys_sendmsg+0xee/0x170 [ 1241.558138][ T253] __sys_sendmsg+0xcd/0x170 [ 1241.558138][ T253] do_syscall_64+0xc6/0x1e0 [ 1241.558138][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1241.558138][ T253] [ 1241.559892][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1241.559892][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1241.559892][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1241.559892][ T253] ipv6_find_idev+0x102/0x170 [ 1241.559892][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1241.559892][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1241.559892][ T253] netlink_rcv_skb+0x130/0x360 [ 1241.559892][ T253] netlink_unicast+0x449/0x710 [ 1241.559892][ T253] netlink_sendmsg+0x723/0xbe0 [ 1241.559892][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1241.559892][ T253] ___sys_sendmsg+0xee/0x170 [ 1241.559892][ T253] __sys_sendmsg+0xcd/0x170 [ 1241.559892][ T253] do_syscall_64+0xc6/0x1e0 [ 1241.559892][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1241.559892][ T253] [ 1251.802372][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1251.803013][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1251.803013][ T253] dst_init+0x84/0x4a0 [ 1251.803013][ T253] dst_alloc+0x97/0x150 [ 1251.803013][ T253] ip6_dst_alloc+0x23/0x90 [ 1251.803013][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1251.803013][ T253] ip6_pol_route+0x56f/0x840 [ 1251.803013][ T253] fib6_rule_lookup+0x334/0x630 [ 1251.803013][ T253] ip6_route_output_flags+0x259/0x480 [ 1251.803013][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1251.803013][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1251.803013][ T253] netlink_rcv_skb+0x130/0x360 [ 1251.803013][ T253] netlink_unicast+0x449/0x710 [ 1251.803013][ T253] netlink_sendmsg+0x723/0xbe0 [ 1251.803013][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1251.803013][ T253] ___sys_sendmsg+0xee/0x170 [ 1251.803013][ T253] __sys_sendmsg+0xcd/0x170 [ 1251.803013][ T253] do_syscall_64+0xc6/0x1e0 [ 1251.803013][ T253] [ 1251.805530][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1251.805530][ T253] netdev_get_by_index+0x5e/0x80 [ 1251.805530][ T253] fib6_nh_init+0x3d8/0x1580 [ 1251.805530][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1251.805530][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1251.805530][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1251.805530][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1251.805530][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1251.805530][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1251.805530][ T253] addrconf_dad_begin+0x310/0x670 [ 1251.805530][ T253] addrconf_dad_work+0x10b/0xab0 [ 1251.805530][ T253] process_one_work+0x84d/0x18a0 [ 1251.805530][ T253] worker_thread+0x587/0xd30 [ 1251.805530][ T253] kthread+0x28a/0x350 [ 1251.805530][ T253] ret_from_fork+0x31/0x70 [ 1251.805530][ T253] ret_from_fork_asm+0x1a/0x30 [ 1251.805530][ T253] [ 1251.807936][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1251.807936][ T253] netdev_get_by_index+0x5e/0x80 [ 1251.807936][ T253] fib6_nh_init+0x3d8/0x1580 [ 1251.807936][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1251.807936][ T253] ip6_route_add+0x1c/0x140 [ 1251.807936][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1251.807936][ T253] inet6_addr_add+0x4f8/0xa40 [ 1251.807936][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1251.807936][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1251.807936][ T253] netlink_rcv_skb+0x130/0x360 [ 1251.807936][ T253] netlink_unicast+0x449/0x710 [ 1251.807936][ T253] netlink_sendmsg+0x723/0xbe0 [ 1251.807936][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1251.807936][ T253] ___sys_sendmsg+0xee/0x170 [ 1251.807936][ T253] __sys_sendmsg+0xcd/0x170 [ 1251.807936][ T253] do_syscall_64+0xc6/0x1e0 [ 1251.807936][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1251.807936][ T253] [ 1251.810482][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1251.810482][ T253] netdev_get_by_index+0x5e/0x80 [ 1251.810482][ T253] fib6_nh_init+0x3d8/0x1580 [ 1251.810482][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1251.810482][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1251.810482][ T253] ipv6_add_addr+0x411/0x2000 [ 1251.810482][ T253] inet6_addr_add+0x30e/0xa40 [ 1251.810482][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1251.810482][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1251.810482][ T253] netlink_rcv_skb+0x130/0x360 [ 1251.810482][ T253] netlink_unicast+0x449/0x710 [ 1251.810482][ T253] netlink_sendmsg+0x723/0xbe0 [ 1251.810482][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1251.810482][ T253] ___sys_sendmsg+0xee/0x170 [ 1251.810482][ T253] __sys_sendmsg+0xcd/0x170 [ 1251.810482][ T253] do_syscall_64+0xc6/0x1e0 [ 1251.810482][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1251.810482][ T253] [ 1251.813007][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1251.813007][ T253] netdev_get_by_index+0x5e/0x80 [ 1251.813007][ T253] fib6_nh_init+0x3d8/0x1580 [ 1251.813007][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1251.813007][ T253] ip6_route_add+0x1c/0x140 [ 1251.813007][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1251.813007][ T253] addrconf_add_dev+0xe2/0x170 [ 1251.813007][ T253] inet6_addr_add+0x12f/0xa40 [ 1251.813007][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1251.813007][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1251.813007][ T253] netlink_rcv_skb+0x130/0x360 [ 1251.813007][ T253] netlink_unicast+0x449/0x710 [ 1251.813007][ T253] netlink_sendmsg+0x723/0xbe0 [ 1251.813007][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1251.813007][ T253] ___sys_sendmsg+0xee/0x170 [ 1251.813007][ T253] __sys_sendmsg+0xcd/0x170 [ 1251.813007][ T253] do_syscall_64+0xc6/0x1e0 [ 1251.813007][ T253] [ 1251.815491][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1251.815491][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1251.815491][ T253] ipv6_find_idev+0x102/0x170 [ 1251.815491][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1251.815491][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1251.815491][ T253] netlink_rcv_skb+0x130/0x360 [ 1251.815491][ T253] netlink_unicast+0x449/0x710 [ 1251.815491][ T253] netlink_sendmsg+0x723/0xbe0 [ 1251.815491][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1251.815491][ T253] ___sys_sendmsg+0xee/0x170 [ 1251.815491][ T253] __sys_sendmsg+0xcd/0x170 [ 1251.815491][ T253] do_syscall_64+0xc6/0x1e0 [ 1251.815491][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1251.815491][ T253] [ 1251.817432][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1251.817432][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1251.817432][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1251.817432][ T253] ipv6_find_idev+0x102/0x170 [ 1251.817432][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1251.817432][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1251.817432][ T253] netlink_rcv_skb+0x130/0x360 [ 1251.817432][ T253] netlink_unicast+0x449/0x710 [ 1251.817432][ T253] netlink_sendmsg+0x723/0xbe0 [ 1251.817432][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1251.817432][ T253] ___sys_sendmsg+0xee/0x170 [ 1251.817432][ T253] __sys_sendmsg+0xcd/0x170 [ 1251.817432][ T253] do_syscall_64+0xc6/0x1e0 [ 1251.817432][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1251.817432][ T253] [ 1262.058290][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1262.059001][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1262.059001][ T253] dst_init+0x84/0x4a0 [ 1262.059001][ T253] dst_alloc+0x97/0x150 [ 1262.059001][ T253] ip6_dst_alloc+0x23/0x90 [ 1262.059001][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1262.059001][ T253] ip6_pol_route+0x56f/0x840 [ 1262.059001][ T253] fib6_rule_lookup+0x334/0x630 [ 1262.059001][ T253] ip6_route_output_flags+0x259/0x480 [ 1262.059001][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1262.059001][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1262.059001][ T253] netlink_rcv_skb+0x130/0x360 [ 1262.059001][ T253] netlink_unicast+0x449/0x710 [ 1262.059001][ T253] netlink_sendmsg+0x723/0xbe0 [ 1262.059001][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1262.059001][ T253] ___sys_sendmsg+0xee/0x170 [ 1262.059001][ T253] __sys_sendmsg+0xcd/0x170 [ 1262.059001][ T253] do_syscall_64+0xc6/0x1e0 [ 1262.059001][ T253] [ 1262.062710][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1262.062710][ T253] netdev_get_by_index+0x5e/0x80 [ 1262.062710][ T253] fib6_nh_init+0x3d8/0x1580 [ 1262.062710][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1262.062710][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1262.062710][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1262.062710][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1262.062710][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1262.062710][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1262.062710][ T253] addrconf_dad_begin+0x310/0x670 [ 1262.062710][ T253] addrconf_dad_work+0x10b/0xab0 [ 1262.062710][ T253] process_one_work+0x84d/0x18a0 [ 1262.062710][ T253] worker_thread+0x587/0xd30 [ 1262.062710][ T253] kthread+0x28a/0x350 [ 1262.062710][ T253] ret_from_fork+0x31/0x70 [ 1262.062710][ T253] ret_from_fork_asm+0x1a/0x30 [ 1262.062710][ T253] [ 1262.066337][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1262.066337][ T253] netdev_get_by_index+0x5e/0x80 [ 1262.066337][ T253] fib6_nh_init+0x3d8/0x1580 [ 1262.066337][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1262.066337][ T253] ip6_route_add+0x1c/0x140 [ 1262.066337][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1262.066337][ T253] inet6_addr_add+0x4f8/0xa40 [ 1262.066337][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1262.066337][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1262.066337][ T253] netlink_rcv_skb+0x130/0x360 [ 1262.066337][ T253] netlink_unicast+0x449/0x710 [ 1262.066337][ T253] netlink_sendmsg+0x723/0xbe0 [ 1262.066337][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1262.066337][ T253] ___sys_sendmsg+0xee/0x170 [ 1262.066337][ T253] __sys_sendmsg+0xcd/0x170 [ 1262.066337][ T253] do_syscall_64+0xc6/0x1e0 [ 1262.066337][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1262.066337][ T253] [ 1262.070119][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1262.070119][ T253] netdev_get_by_index+0x5e/0x80 [ 1262.070119][ T253] fib6_nh_init+0x3d8/0x1580 [ 1262.070119][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1262.070119][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1262.070119][ T253] ipv6_add_addr+0x411/0x2000 [ 1262.070119][ T253] inet6_addr_add+0x30e/0xa40 [ 1262.070119][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1262.070119][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1262.070119][ T253] netlink_rcv_skb+0x130/0x360 [ 1262.070119][ T253] netlink_unicast+0x449/0x710 [ 1262.070119][ T253] netlink_sendmsg+0x723/0xbe0 [ 1262.070119][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1262.070119][ T253] ___sys_sendmsg+0xee/0x170 [ 1262.070119][ T253] __sys_sendmsg+0xcd/0x170 [ 1262.070119][ T253] do_syscall_64+0xc6/0x1e0 [ 1262.070119][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1262.070119][ T253] [ 1262.073751][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1262.073751][ T253] netdev_get_by_index+0x5e/0x80 [ 1262.073751][ T253] fib6_nh_init+0x3d8/0x1580 [ 1262.073751][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1262.073751][ T253] ip6_route_add+0x1c/0x140 [ 1262.073751][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1262.073751][ T253] addrconf_add_dev+0xe2/0x170 [ 1262.073751][ T253] inet6_addr_add+0x12f/0xa40 [ 1262.073751][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1262.073751][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1262.073751][ T253] netlink_rcv_skb+0x130/0x360 [ 1262.073751][ T253] netlink_unicast+0x449/0x710 [ 1262.073751][ T253] netlink_sendmsg+0x723/0xbe0 [ 1262.073751][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1262.073751][ T253] ___sys_sendmsg+0xee/0x170 [ 1262.073751][ T253] __sys_sendmsg+0xcd/0x170 [ 1262.073751][ T253] do_syscall_64+0xc6/0x1e0 [ 1262.073751][ T253] [ 1262.077344][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1262.077344][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1262.077344][ T253] ipv6_find_idev+0x102/0x170 [ 1262.077344][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1262.077344][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1262.077344][ T253] netlink_rcv_skb+0x130/0x360 [ 1262.077344][ T253] netlink_unicast+0x449/0x710 [ 1262.077344][ T253] netlink_sendmsg+0x723/0xbe0 [ 1262.077344][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1262.077344][ T253] ___sys_sendmsg+0xee/0x170 [ 1262.077344][ T253] __sys_sendmsg+0xcd/0x170 [ 1262.077344][ T253] do_syscall_64+0xc6/0x1e0 [ 1262.077344][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1262.077344][ T253] [ 1262.080262][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1262.080262][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1262.080262][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1262.080262][ T253] ipv6_find_idev+0x102/0x170 [ 1262.080262][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1262.080262][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1262.080262][ T253] netlink_rcv_skb+0x130/0x360 [ 1262.080262][ T253] netlink_unicast+0x449/0x710 [ 1262.080262][ T253] netlink_sendmsg+0x723/0xbe0 [ 1262.080262][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1262.080262][ T253] ___sys_sendmsg+0xee/0x170 [ 1262.080262][ T253] __sys_sendmsg+0xcd/0x170 [ 1262.080262][ T253] do_syscall_64+0xc6/0x1e0 [ 1262.080262][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1262.080262][ T253] [ 1272.130291][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1272.130884][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1272.130884][ T253] dst_init+0x84/0x4a0 [ 1272.130884][ T253] dst_alloc+0x97/0x150 [ 1272.130884][ T253] ip6_dst_alloc+0x23/0x90 [ 1272.130884][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1272.130884][ T253] ip6_pol_route+0x56f/0x840 [ 1272.130884][ T253] fib6_rule_lookup+0x334/0x630 [ 1272.130884][ T253] ip6_route_output_flags+0x259/0x480 [ 1272.130884][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1272.130884][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1272.130884][ T253] netlink_rcv_skb+0x130/0x360 [ 1272.130884][ T253] netlink_unicast+0x449/0x710 [ 1272.130884][ T253] netlink_sendmsg+0x723/0xbe0 [ 1272.130884][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1272.130884][ T253] ___sys_sendmsg+0xee/0x170 [ 1272.130884][ T253] __sys_sendmsg+0xcd/0x170 [ 1272.130884][ T253] do_syscall_64+0xc6/0x1e0 [ 1272.130884][ T253] [ 1272.133434][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1272.133434][ T253] netdev_get_by_index+0x5e/0x80 [ 1272.133434][ T253] fib6_nh_init+0x3d8/0x1580 [ 1272.133434][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1272.133434][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1272.133434][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1272.133434][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1272.133434][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1272.133434][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1272.133434][ T253] addrconf_dad_begin+0x310/0x670 [ 1272.133434][ T253] addrconf_dad_work+0x10b/0xab0 [ 1272.133434][ T253] process_one_work+0x84d/0x18a0 [ 1272.133434][ T253] worker_thread+0x587/0xd30 [ 1272.133434][ T253] kthread+0x28a/0x350 [ 1272.133434][ T253] ret_from_fork+0x31/0x70 [ 1272.133434][ T253] ret_from_fork_asm+0x1a/0x30 [ 1272.133434][ T253] [ 1272.135830][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1272.135830][ T253] netdev_get_by_index+0x5e/0x80 [ 1272.135830][ T253] fib6_nh_init+0x3d8/0x1580 [ 1272.135830][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1272.135830][ T253] ip6_route_add+0x1c/0x140 [ 1272.135830][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1272.135830][ T253] inet6_addr_add+0x4f8/0xa40 [ 1272.135830][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1272.135830][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1272.135830][ T253] netlink_rcv_skb+0x130/0x360 [ 1272.135830][ T253] netlink_unicast+0x449/0x710 [ 1272.135830][ T253] netlink_sendmsg+0x723/0xbe0 [ 1272.135830][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1272.135830][ T253] ___sys_sendmsg+0xee/0x170 [ 1272.135830][ T253] __sys_sendmsg+0xcd/0x170 [ 1272.135830][ T253] do_syscall_64+0xc6/0x1e0 [ 1272.135830][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1272.135830][ T253] [ 1272.138327][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1272.138327][ T253] netdev_get_by_index+0x5e/0x80 [ 1272.138327][ T253] fib6_nh_init+0x3d8/0x1580 [ 1272.138327][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1272.138327][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1272.138327][ T253] ipv6_add_addr+0x411/0x2000 [ 1272.138327][ T253] inet6_addr_add+0x30e/0xa40 [ 1272.138327][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1272.138327][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1272.138327][ T253] netlink_rcv_skb+0x130/0x360 [ 1272.138327][ T253] netlink_unicast+0x449/0x710 [ 1272.138327][ T253] netlink_sendmsg+0x723/0xbe0 [ 1272.138327][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1272.138327][ T253] ___sys_sendmsg+0xee/0x170 [ 1272.138327][ T253] __sys_sendmsg+0xcd/0x170 [ 1272.138327][ T253] do_syscall_64+0xc6/0x1e0 [ 1272.138327][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1272.138327][ T253] [ 1272.140801][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1272.140801][ T253] netdev_get_by_index+0x5e/0x80 [ 1272.140801][ T253] fib6_nh_init+0x3d8/0x1580 [ 1272.140801][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1272.140801][ T253] ip6_route_add+0x1c/0x140 [ 1272.140801][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1272.140801][ T253] addrconf_add_dev+0xe2/0x170 [ 1272.140801][ T253] inet6_addr_add+0x12f/0xa40 [ 1272.140801][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1272.140801][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1272.140801][ T253] netlink_rcv_skb+0x130/0x360 [ 1272.140801][ T253] netlink_unicast+0x449/0x710 [ 1272.140801][ T253] netlink_sendmsg+0x723/0xbe0 [ 1272.140801][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1272.140801][ T253] ___sys_sendmsg+0xee/0x170 [ 1272.140801][ T253] __sys_sendmsg+0xcd/0x170 [ 1272.140801][ T253] do_syscall_64+0xc6/0x1e0 [ 1272.140801][ T253] [ 1272.143247][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1272.143247][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1272.143247][ T253] ipv6_find_idev+0x102/0x170 [ 1272.143247][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1272.143247][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1272.143247][ T253] netlink_rcv_skb+0x130/0x360 [ 1272.143247][ T253] netlink_unicast+0x449/0x710 [ 1272.143247][ T253] netlink_sendmsg+0x723/0xbe0 [ 1272.143247][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1272.143247][ T253] ___sys_sendmsg+0xee/0x170 [ 1272.143247][ T253] __sys_sendmsg+0xcd/0x170 [ 1272.143247][ T253] do_syscall_64+0xc6/0x1e0 [ 1272.143247][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1272.143247][ T253] [ 1272.145175][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1272.145175][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1272.145175][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1272.145175][ T253] ipv6_find_idev+0x102/0x170 [ 1272.145175][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1272.145175][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1272.145175][ T253] netlink_rcv_skb+0x130/0x360 [ 1272.145175][ T253] netlink_unicast+0x449/0x710 [ 1272.145175][ T253] netlink_sendmsg+0x723/0xbe0 [ 1272.145175][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1272.145175][ T253] ___sys_sendmsg+0xee/0x170 [ 1272.145175][ T253] __sys_sendmsg+0xcd/0x170 [ 1272.145175][ T253] do_syscall_64+0xc6/0x1e0 [ 1272.145175][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1272.145175][ T253] [ 1282.394283][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1282.394845][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1282.394845][ T253] dst_init+0x84/0x4a0 [ 1282.394845][ T253] dst_alloc+0x97/0x150 [ 1282.394845][ T253] ip6_dst_alloc+0x23/0x90 [ 1282.394845][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1282.394845][ T253] ip6_pol_route+0x56f/0x840 [ 1282.394845][ T253] fib6_rule_lookup+0x334/0x630 [ 1282.394845][ T253] ip6_route_output_flags+0x259/0x480 [ 1282.394845][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1282.394845][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1282.394845][ T253] netlink_rcv_skb+0x130/0x360 [ 1282.394845][ T253] netlink_unicast+0x449/0x710 [ 1282.394845][ T253] netlink_sendmsg+0x723/0xbe0 [ 1282.394845][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1282.394845][ T253] ___sys_sendmsg+0xee/0x170 [ 1282.394845][ T253] __sys_sendmsg+0xcd/0x170 [ 1282.394845][ T253] do_syscall_64+0xc6/0x1e0 [ 1282.394845][ T253] [ 1282.397290][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1282.397290][ T253] netdev_get_by_index+0x5e/0x80 [ 1282.397290][ T253] fib6_nh_init+0x3d8/0x1580 [ 1282.397290][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1282.397290][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1282.397290][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1282.397290][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1282.397290][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1282.397290][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1282.397290][ T253] addrconf_dad_begin+0x310/0x670 [ 1282.397290][ T253] addrconf_dad_work+0x10b/0xab0 [ 1282.397290][ T253] process_one_work+0x84d/0x18a0 [ 1282.397290][ T253] worker_thread+0x587/0xd30 [ 1282.397290][ T253] kthread+0x28a/0x350 [ 1282.397290][ T253] ret_from_fork+0x31/0x70 [ 1282.397290][ T253] ret_from_fork_asm+0x1a/0x30 [ 1282.397290][ T253] [ 1282.399689][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1282.399689][ T253] netdev_get_by_index+0x5e/0x80 [ 1282.399689][ T253] fib6_nh_init+0x3d8/0x1580 [ 1282.399689][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1282.399689][ T253] ip6_route_add+0x1c/0x140 [ 1282.399689][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1282.399689][ T253] inet6_addr_add+0x4f8/0xa40 [ 1282.399689][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1282.399689][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1282.399689][ T253] netlink_rcv_skb+0x130/0x360 [ 1282.399689][ T253] netlink_unicast+0x449/0x710 [ 1282.399689][ T253] netlink_sendmsg+0x723/0xbe0 [ 1282.399689][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1282.399689][ T253] ___sys_sendmsg+0xee/0x170 [ 1282.399689][ T253] __sys_sendmsg+0xcd/0x170 [ 1282.399689][ T253] do_syscall_64+0xc6/0x1e0 [ 1282.399689][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1282.399689][ T253] [ 1282.402197][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1282.402197][ T253] netdev_get_by_index+0x5e/0x80 [ 1282.402197][ T253] fib6_nh_init+0x3d8/0x1580 [ 1282.402197][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1282.402197][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1282.402197][ T253] ipv6_add_addr+0x411/0x2000 [ 1282.402197][ T253] inet6_addr_add+0x30e/0xa40 [ 1282.402197][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1282.402197][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1282.402197][ T253] netlink_rcv_skb+0x130/0x360 [ 1282.402197][ T253] netlink_unicast+0x449/0x710 [ 1282.402197][ T253] netlink_sendmsg+0x723/0xbe0 [ 1282.402197][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1282.402197][ T253] ___sys_sendmsg+0xee/0x170 [ 1282.402197][ T253] __sys_sendmsg+0xcd/0x170 [ 1282.402197][ T253] do_syscall_64+0xc6/0x1e0 [ 1282.402197][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1282.402197][ T253] [ 1282.404727][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1282.404727][ T253] netdev_get_by_index+0x5e/0x80 [ 1282.404727][ T253] fib6_nh_init+0x3d8/0x1580 [ 1282.404727][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1282.404727][ T253] ip6_route_add+0x1c/0x140 [ 1282.404727][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1282.404727][ T253] addrconf_add_dev+0xe2/0x170 [ 1282.404727][ T253] inet6_addr_add+0x12f/0xa40 [ 1282.404727][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1282.404727][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1282.404727][ T253] netlink_rcv_skb+0x130/0x360 [ 1282.404727][ T253] netlink_unicast+0x449/0x710 [ 1282.404727][ T253] netlink_sendmsg+0x723/0xbe0 [ 1282.404727][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1282.404727][ T253] ___sys_sendmsg+0xee/0x170 [ 1282.404727][ T253] __sys_sendmsg+0xcd/0x170 [ 1282.404727][ T253] do_syscall_64+0xc6/0x1e0 [ 1282.404727][ T253] [ 1282.407190][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1282.407190][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1282.407190][ T253] ipv6_find_idev+0x102/0x170 [ 1282.407190][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1282.407190][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1282.407190][ T253] netlink_rcv_skb+0x130/0x360 [ 1282.407190][ T253] netlink_unicast+0x449/0x710 [ 1282.407190][ T253] netlink_sendmsg+0x723/0xbe0 [ 1282.407190][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1282.407190][ T253] ___sys_sendmsg+0xee/0x170 [ 1282.407190][ T253] __sys_sendmsg+0xcd/0x170 [ 1282.407190][ T253] do_syscall_64+0xc6/0x1e0 [ 1282.407190][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1282.407190][ T253] [ 1282.409109][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1282.409109][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1282.409109][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1282.409109][ T253] ipv6_find_idev+0x102/0x170 [ 1282.409109][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1282.409109][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1282.409109][ T253] netlink_rcv_skb+0x130/0x360 [ 1282.409109][ T253] netlink_unicast+0x449/0x710 [ 1282.409109][ T253] netlink_sendmsg+0x723/0xbe0 [ 1282.409109][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1282.409109][ T253] ___sys_sendmsg+0xee/0x170 [ 1282.409109][ T253] __sys_sendmsg+0xcd/0x170 [ 1282.409109][ T253] do_syscall_64+0xc6/0x1e0 [ 1282.409109][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1282.409109][ T253] [ 1292.498269][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1292.498705][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1292.498705][ T253] dst_init+0x84/0x4a0 [ 1292.498705][ T253] dst_alloc+0x97/0x150 [ 1292.498705][ T253] ip6_dst_alloc+0x23/0x90 [ 1292.498705][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1292.498705][ T253] ip6_pol_route+0x56f/0x840 [ 1292.498705][ T253] fib6_rule_lookup+0x334/0x630 [ 1292.498705][ T253] ip6_route_output_flags+0x259/0x480 [ 1292.498705][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1292.498705][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1292.498705][ T253] netlink_rcv_skb+0x130/0x360 [ 1292.498705][ T253] netlink_unicast+0x449/0x710 [ 1292.498705][ T253] netlink_sendmsg+0x723/0xbe0 [ 1292.498705][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1292.498705][ T253] ___sys_sendmsg+0xee/0x170 [ 1292.498705][ T253] __sys_sendmsg+0xcd/0x170 [ 1292.498705][ T253] do_syscall_64+0xc6/0x1e0 [ 1292.498705][ T253] [ 1292.500883][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1292.500883][ T253] netdev_get_by_index+0x5e/0x80 [ 1292.500883][ T253] fib6_nh_init+0x3d8/0x1580 [ 1292.500883][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1292.500883][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1292.500883][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1292.500883][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1292.500883][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1292.500883][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1292.500883][ T253] addrconf_dad_begin+0x310/0x670 [ 1292.500883][ T253] addrconf_dad_work+0x10b/0xab0 [ 1292.500883][ T253] process_one_work+0x84d/0x18a0 [ 1292.500883][ T253] worker_thread+0x587/0xd30 [ 1292.500883][ T253] kthread+0x28a/0x350 [ 1292.500883][ T253] ret_from_fork+0x31/0x70 [ 1292.500883][ T253] ret_from_fork_asm+0x1a/0x30 [ 1292.500883][ T253] [ 1292.503053][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1292.503053][ T253] netdev_get_by_index+0x5e/0x80 [ 1292.503053][ T253] fib6_nh_init+0x3d8/0x1580 [ 1292.503053][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1292.503053][ T253] ip6_route_add+0x1c/0x140 [ 1292.503053][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1292.503053][ T253] inet6_addr_add+0x4f8/0xa40 [ 1292.503053][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1292.503053][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1292.503053][ T253] netlink_rcv_skb+0x130/0x360 [ 1292.503053][ T253] netlink_unicast+0x449/0x710 [ 1292.503053][ T253] netlink_sendmsg+0x723/0xbe0 [ 1292.503053][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1292.503053][ T253] ___sys_sendmsg+0xee/0x170 [ 1292.503053][ T253] __sys_sendmsg+0xcd/0x170 [ 1292.503053][ T253] do_syscall_64+0xc6/0x1e0 [ 1292.503053][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1292.503053][ T253] [ 1292.505320][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1292.505320][ T253] netdev_get_by_index+0x5e/0x80 [ 1292.505320][ T253] fib6_nh_init+0x3d8/0x1580 [ 1292.505320][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1292.505320][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1292.505320][ T253] ipv6_add_addr+0x411/0x2000 [ 1292.505320][ T253] inet6_addr_add+0x30e/0xa40 [ 1292.505320][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1292.505320][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1292.505320][ T253] netlink_rcv_skb+0x130/0x360 [ 1292.505320][ T253] netlink_unicast+0x449/0x710 [ 1292.505320][ T253] netlink_sendmsg+0x723/0xbe0 [ 1292.505320][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1292.505320][ T253] ___sys_sendmsg+0xee/0x170 [ 1292.505320][ T253] __sys_sendmsg+0xcd/0x170 [ 1292.505320][ T253] do_syscall_64+0xc6/0x1e0 [ 1292.505320][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1292.505320][ T253] [ 1292.507585][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1292.507585][ T253] netdev_get_by_index+0x5e/0x80 [ 1292.507585][ T253] fib6_nh_init+0x3d8/0x1580 [ 1292.507585][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1292.507585][ T253] ip6_route_add+0x1c/0x140 [ 1292.507585][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1292.507585][ T253] addrconf_add_dev+0xe2/0x170 [ 1292.507585][ T253] inet6_addr_add+0x12f/0xa40 [ 1292.507585][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1292.507585][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1292.507585][ T253] netlink_rcv_skb+0x130/0x360 [ 1292.507585][ T253] netlink_unicast+0x449/0x710 [ 1292.507585][ T253] netlink_sendmsg+0x723/0xbe0 [ 1292.507585][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1292.507585][ T253] ___sys_sendmsg+0xee/0x170 [ 1292.507585][ T253] __sys_sendmsg+0xcd/0x170 [ 1292.507585][ T253] do_syscall_64+0xc6/0x1e0 [ 1292.507585][ T253] [ 1292.509787][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1292.509787][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1292.509787][ T253] ipv6_find_idev+0x102/0x170 [ 1292.509787][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1292.509787][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1292.509787][ T253] netlink_rcv_skb+0x130/0x360 [ 1292.509787][ T253] netlink_unicast+0x449/0x710 [ 1292.509787][ T253] netlink_sendmsg+0x723/0xbe0 [ 1292.509787][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1292.509787][ T253] ___sys_sendmsg+0xee/0x170 [ 1292.509787][ T253] __sys_sendmsg+0xcd/0x170 [ 1292.509787][ T253] do_syscall_64+0xc6/0x1e0 [ 1292.509787][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1292.509787][ T253] [ 1292.511550][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1292.511550][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1292.511550][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1292.511550][ T253] ipv6_find_idev+0x102/0x170 [ 1292.511550][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1292.511550][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1292.511550][ T253] netlink_rcv_skb+0x130/0x360 [ 1292.511550][ T253] netlink_unicast+0x449/0x710 [ 1292.511550][ T253] netlink_sendmsg+0x723/0xbe0 [ 1292.511550][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1292.511550][ T253] ___sys_sendmsg+0xee/0x170 [ 1292.511550][ T253] __sys_sendmsg+0xcd/0x170 [ 1292.511550][ T253] do_syscall_64+0xc6/0x1e0 [ 1292.511550][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1292.511550][ T253] [ 1302.754277][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1302.754783][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1302.754783][ T253] dst_init+0x84/0x4a0 [ 1302.754783][ T253] dst_alloc+0x97/0x150 [ 1302.754783][ T253] ip6_dst_alloc+0x23/0x90 [ 1302.754783][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1302.754783][ T253] ip6_pol_route+0x56f/0x840 [ 1302.754783][ T253] fib6_rule_lookup+0x334/0x630 [ 1302.754783][ T253] ip6_route_output_flags+0x259/0x480 [ 1302.754783][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1302.754783][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1302.754783][ T253] netlink_rcv_skb+0x130/0x360 [ 1302.754783][ T253] netlink_unicast+0x449/0x710 [ 1302.754783][ T253] netlink_sendmsg+0x723/0xbe0 [ 1302.754783][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1302.754783][ T253] ___sys_sendmsg+0xee/0x170 [ 1302.754783][ T253] __sys_sendmsg+0xcd/0x170 [ 1302.754783][ T253] do_syscall_64+0xc6/0x1e0 [ 1302.754783][ T253] [ 1302.757163][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1302.757163][ T253] netdev_get_by_index+0x5e/0x80 [ 1302.757163][ T253] fib6_nh_init+0x3d8/0x1580 [ 1302.757163][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1302.757163][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1302.757163][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1302.757163][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1302.757163][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1302.757163][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1302.757163][ T253] addrconf_dad_begin+0x310/0x670 [ 1302.757163][ T253] addrconf_dad_work+0x10b/0xab0 [ 1302.757163][ T253] process_one_work+0x84d/0x18a0 [ 1302.757163][ T253] worker_thread+0x587/0xd30 [ 1302.757163][ T253] kthread+0x28a/0x350 [ 1302.757163][ T253] ret_from_fork+0x31/0x70 [ 1302.757163][ T253] ret_from_fork_asm+0x1a/0x30 [ 1302.757163][ T253] [ 1302.759499][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1302.759499][ T253] netdev_get_by_index+0x5e/0x80 [ 1302.759499][ T253] fib6_nh_init+0x3d8/0x1580 [ 1302.759499][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1302.759499][ T253] ip6_route_add+0x1c/0x140 [ 1302.759499][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1302.759499][ T253] inet6_addr_add+0x4f8/0xa40 [ 1302.759499][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1302.759499][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1302.759499][ T253] netlink_rcv_skb+0x130/0x360 [ 1302.759499][ T253] netlink_unicast+0x449/0x710 [ 1302.759499][ T253] netlink_sendmsg+0x723/0xbe0 [ 1302.759499][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1302.759499][ T253] ___sys_sendmsg+0xee/0x170 [ 1302.759499][ T253] __sys_sendmsg+0xcd/0x170 [ 1302.759499][ T253] do_syscall_64+0xc6/0x1e0 [ 1302.759499][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1302.759499][ T253] [ 1302.761881][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1302.761881][ T253] netdev_get_by_index+0x5e/0x80 [ 1302.761881][ T253] fib6_nh_init+0x3d8/0x1580 [ 1302.761881][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1302.761881][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1302.761881][ T253] ipv6_add_addr+0x411/0x2000 [ 1302.761881][ T253] inet6_addr_add+0x30e/0xa40 [ 1302.761881][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1302.761881][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1302.761881][ T253] netlink_rcv_skb+0x130/0x360 [ 1302.761881][ T253] netlink_unicast+0x449/0x710 [ 1302.761881][ T253] netlink_sendmsg+0x723/0xbe0 [ 1302.761881][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1302.761881][ T253] ___sys_sendmsg+0xee/0x170 [ 1302.761881][ T253] __sys_sendmsg+0xcd/0x170 [ 1302.761881][ T253] do_syscall_64+0xc6/0x1e0 [ 1302.761881][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1302.761881][ T253] [ 1302.764220][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1302.764220][ T253] netdev_get_by_index+0x5e/0x80 [ 1302.764220][ T253] fib6_nh_init+0x3d8/0x1580 [ 1302.764220][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1302.764220][ T253] ip6_route_add+0x1c/0x140 [ 1302.764220][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1302.764220][ T253] addrconf_add_dev+0xe2/0x170 [ 1302.764220][ T253] inet6_addr_add+0x12f/0xa40 [ 1302.764220][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1302.764220][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1302.764220][ T253] netlink_rcv_skb+0x130/0x360 [ 1302.764220][ T253] netlink_unicast+0x449/0x710 [ 1302.764220][ T253] netlink_sendmsg+0x723/0xbe0 [ 1302.764220][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1302.764220][ T253] ___sys_sendmsg+0xee/0x170 [ 1302.764220][ T253] __sys_sendmsg+0xcd/0x170 [ 1302.764220][ T253] do_syscall_64+0xc6/0x1e0 [ 1302.764220][ T253] [ 1302.766672][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1302.766672][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1302.766672][ T253] ipv6_find_idev+0x102/0x170 [ 1302.766672][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1302.766672][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1302.766672][ T253] netlink_rcv_skb+0x130/0x360 [ 1302.766672][ T253] netlink_unicast+0x449/0x710 [ 1302.766672][ T253] netlink_sendmsg+0x723/0xbe0 [ 1302.766672][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1302.766672][ T253] ___sys_sendmsg+0xee/0x170 [ 1302.766672][ T253] __sys_sendmsg+0xcd/0x170 [ 1302.766672][ T253] do_syscall_64+0xc6/0x1e0 [ 1302.766672][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1302.766672][ T253] [ 1302.769278][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1302.769278][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1302.769278][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1302.769278][ T253] ipv6_find_idev+0x102/0x170 [ 1302.769278][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1302.769278][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1302.769278][ T253] netlink_rcv_skb+0x130/0x360 [ 1302.769278][ T253] netlink_unicast+0x449/0x710 [ 1302.769278][ T253] netlink_sendmsg+0x723/0xbe0 [ 1302.769278][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1302.769278][ T253] ___sys_sendmsg+0xee/0x170 [ 1302.769278][ T253] __sys_sendmsg+0xcd/0x170 [ 1302.769278][ T253] do_syscall_64+0xc6/0x1e0 [ 1302.769278][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1302.769278][ T253] [ 1313.010286][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1313.010899][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1313.010899][ T253] dst_init+0x84/0x4a0 [ 1313.010899][ T253] dst_alloc+0x97/0x150 [ 1313.010899][ T253] ip6_dst_alloc+0x23/0x90 [ 1313.010899][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1313.010899][ T253] ip6_pol_route+0x56f/0x840 [ 1313.010899][ T253] fib6_rule_lookup+0x334/0x630 [ 1313.010899][ T253] ip6_route_output_flags+0x259/0x480 [ 1313.010899][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1313.010899][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1313.010899][ T253] netlink_rcv_skb+0x130/0x360 [ 1313.010899][ T253] netlink_unicast+0x449/0x710 [ 1313.010899][ T253] netlink_sendmsg+0x723/0xbe0 [ 1313.010899][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1313.010899][ T253] ___sys_sendmsg+0xee/0x170 [ 1313.010899][ T253] __sys_sendmsg+0xcd/0x170 [ 1313.010899][ T253] do_syscall_64+0xc6/0x1e0 [ 1313.010899][ T253] [ 1313.014496][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1313.014496][ T253] netdev_get_by_index+0x5e/0x80 [ 1313.014496][ T253] fib6_nh_init+0x3d8/0x1580 [ 1313.014496][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1313.014496][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1313.014496][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1313.014496][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1313.014496][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1313.014496][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1313.014496][ T253] addrconf_dad_begin+0x310/0x670 [ 1313.014496][ T253] addrconf_dad_work+0x10b/0xab0 [ 1313.014496][ T253] process_one_work+0x84d/0x18a0 [ 1313.014496][ T253] worker_thread+0x587/0xd30 [ 1313.014496][ T253] kthread+0x28a/0x350 [ 1313.014496][ T253] ret_from_fork+0x31/0x70 [ 1313.014496][ T253] ret_from_fork_asm+0x1a/0x30 [ 1313.014496][ T253] [ 1313.017935][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1313.017935][ T253] netdev_get_by_index+0x5e/0x80 [ 1313.017935][ T253] fib6_nh_init+0x3d8/0x1580 [ 1313.017935][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1313.017935][ T253] ip6_route_add+0x1c/0x140 [ 1313.017935][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1313.017935][ T253] inet6_addr_add+0x4f8/0xa40 [ 1313.017935][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1313.017935][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1313.017935][ T253] netlink_rcv_skb+0x130/0x360 [ 1313.017935][ T253] netlink_unicast+0x449/0x710 [ 1313.017935][ T253] netlink_sendmsg+0x723/0xbe0 [ 1313.017935][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1313.017935][ T253] ___sys_sendmsg+0xee/0x170 [ 1313.017935][ T253] __sys_sendmsg+0xcd/0x170 [ 1313.017935][ T253] do_syscall_64+0xc6/0x1e0 [ 1313.017935][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1313.017935][ T253] [ 1313.021561][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1313.021561][ T253] netdev_get_by_index+0x5e/0x80 [ 1313.021561][ T253] fib6_nh_init+0x3d8/0x1580 [ 1313.021561][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1313.021561][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1313.021561][ T253] ipv6_add_addr+0x411/0x2000 [ 1313.021561][ T253] inet6_addr_add+0x30e/0xa40 [ 1313.021561][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1313.021561][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1313.021561][ T253] netlink_rcv_skb+0x130/0x360 [ 1313.021561][ T253] netlink_unicast+0x449/0x710 [ 1313.021561][ T253] netlink_sendmsg+0x723/0xbe0 [ 1313.021561][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1313.021561][ T253] ___sys_sendmsg+0xee/0x170 [ 1313.021561][ T253] __sys_sendmsg+0xcd/0x170 [ 1313.021561][ T253] do_syscall_64+0xc6/0x1e0 [ 1313.021561][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1313.021561][ T253] [ 1313.025155][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1313.025155][ T253] netdev_get_by_index+0x5e/0x80 [ 1313.025155][ T253] fib6_nh_init+0x3d8/0x1580 [ 1313.025155][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1313.025155][ T253] ip6_route_add+0x1c/0x140 [ 1313.025155][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1313.025155][ T253] addrconf_add_dev+0xe2/0x170 [ 1313.025155][ T253] inet6_addr_add+0x12f/0xa40 [ 1313.025155][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1313.025155][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1313.025155][ T253] netlink_rcv_skb+0x130/0x360 [ 1313.025155][ T253] netlink_unicast+0x449/0x710 [ 1313.025155][ T253] netlink_sendmsg+0x723/0xbe0 [ 1313.025155][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1313.025155][ T253] ___sys_sendmsg+0xee/0x170 [ 1313.025155][ T253] __sys_sendmsg+0xcd/0x170 [ 1313.025155][ T253] do_syscall_64+0xc6/0x1e0 [ 1313.025155][ T253] [ 1313.028617][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1313.028617][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1313.028617][ T253] ipv6_find_idev+0x102/0x170 [ 1313.028617][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1313.028617][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1313.028617][ T253] netlink_rcv_skb+0x130/0x360 [ 1313.028617][ T253] netlink_unicast+0x449/0x710 [ 1313.028617][ T253] netlink_sendmsg+0x723/0xbe0 [ 1313.028617][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1313.028617][ T253] ___sys_sendmsg+0xee/0x170 [ 1313.028617][ T253] __sys_sendmsg+0xcd/0x170 [ 1313.028617][ T253] do_syscall_64+0xc6/0x1e0 [ 1313.028617][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1313.028617][ T253] [ 1313.031211][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1313.031211][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1313.031211][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1313.031211][ T253] ipv6_find_idev+0x102/0x170 [ 1313.031211][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1313.031211][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1313.031211][ T253] netlink_rcv_skb+0x130/0x360 [ 1313.031211][ T253] netlink_unicast+0x449/0x710 [ 1313.031211][ T253] netlink_sendmsg+0x723/0xbe0 [ 1313.031211][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1313.031211][ T253] ___sys_sendmsg+0xee/0x170 [ 1313.031211][ T253] __sys_sendmsg+0xcd/0x170 [ 1313.031211][ T253] do_syscall_64+0xc6/0x1e0 [ 1313.031211][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1313.031211][ T253] [ 1323.274268][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1323.274697][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1323.274697][ T253] dst_init+0x84/0x4a0 [ 1323.274697][ T253] dst_alloc+0x97/0x150 [ 1323.274697][ T253] ip6_dst_alloc+0x23/0x90 [ 1323.274697][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1323.274697][ T253] ip6_pol_route+0x56f/0x840 [ 1323.274697][ T253] fib6_rule_lookup+0x334/0x630 [ 1323.274697][ T253] ip6_route_output_flags+0x259/0x480 [ 1323.274697][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1323.274697][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1323.274697][ T253] netlink_rcv_skb+0x130/0x360 [ 1323.274697][ T253] netlink_unicast+0x449/0x710 [ 1323.274697][ T253] netlink_sendmsg+0x723/0xbe0 [ 1323.274697][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1323.274697][ T253] ___sys_sendmsg+0xee/0x170 [ 1323.274697][ T253] __sys_sendmsg+0xcd/0x170 [ 1323.274697][ T253] do_syscall_64+0xc6/0x1e0 [ 1323.274697][ T253] [ 1323.276963][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1323.276963][ T253] netdev_get_by_index+0x5e/0x80 [ 1323.276963][ T253] fib6_nh_init+0x3d8/0x1580 [ 1323.276963][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1323.276963][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1323.276963][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1323.276963][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1323.276963][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1323.276963][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1323.276963][ T253] addrconf_dad_begin+0x310/0x670 [ 1323.276963][ T253] addrconf_dad_work+0x10b/0xab0 [ 1323.276963][ T253] process_one_work+0x84d/0x18a0 [ 1323.276963][ T253] worker_thread+0x587/0xd30 [ 1323.276963][ T253] kthread+0x28a/0x350 [ 1323.276963][ T253] ret_from_fork+0x31/0x70 [ 1323.276963][ T253] ret_from_fork_asm+0x1a/0x30 [ 1323.276963][ T253] [ 1323.279225][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1323.279225][ T253] netdev_get_by_index+0x5e/0x80 [ 1323.279225][ T253] fib6_nh_init+0x3d8/0x1580 [ 1323.279225][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1323.279225][ T253] ip6_route_add+0x1c/0x140 [ 1323.279225][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1323.279225][ T253] inet6_addr_add+0x4f8/0xa40 [ 1323.279225][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1323.279225][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1323.279225][ T253] netlink_rcv_skb+0x130/0x360 [ 1323.279225][ T253] netlink_unicast+0x449/0x710 [ 1323.279225][ T253] netlink_sendmsg+0x723/0xbe0 [ 1323.279225][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1323.279225][ T253] ___sys_sendmsg+0xee/0x170 [ 1323.279225][ T253] __sys_sendmsg+0xcd/0x170 [ 1323.279225][ T253] do_syscall_64+0xc6/0x1e0 [ 1323.279225][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1323.279225][ T253] [ 1323.281533][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1323.281533][ T253] netdev_get_by_index+0x5e/0x80 [ 1323.281533][ T253] fib6_nh_init+0x3d8/0x1580 [ 1323.281533][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1323.281533][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1323.281533][ T253] ipv6_add_addr+0x411/0x2000 [ 1323.281533][ T253] inet6_addr_add+0x30e/0xa40 [ 1323.281533][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1323.281533][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1323.281533][ T253] netlink_rcv_skb+0x130/0x360 [ 1323.281533][ T253] netlink_unicast+0x449/0x710 [ 1323.281533][ T253] netlink_sendmsg+0x723/0xbe0 [ 1323.281533][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1323.281533][ T253] ___sys_sendmsg+0xee/0x170 [ 1323.281533][ T253] __sys_sendmsg+0xcd/0x170 [ 1323.281533][ T253] do_syscall_64+0xc6/0x1e0 [ 1323.281533][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1323.281533][ T253] [ 1323.283937][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1323.283937][ T253] netdev_get_by_index+0x5e/0x80 [ 1323.283937][ T253] fib6_nh_init+0x3d8/0x1580 [ 1323.283937][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1323.283937][ T253] ip6_route_add+0x1c/0x140 [ 1323.283937][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1323.283937][ T253] addrconf_add_dev+0xe2/0x170 [ 1323.283937][ T253] inet6_addr_add+0x12f/0xa40 [ 1323.283937][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1323.283937][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1323.283937][ T253] netlink_rcv_skb+0x130/0x360 [ 1323.283937][ T253] netlink_unicast+0x449/0x710 [ 1323.283937][ T253] netlink_sendmsg+0x723/0xbe0 [ 1323.283937][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1323.283937][ T253] ___sys_sendmsg+0xee/0x170 [ 1323.283937][ T253] __sys_sendmsg+0xcd/0x170 [ 1323.283937][ T253] do_syscall_64+0xc6/0x1e0 [ 1323.283937][ T253] [ 1323.286378][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1323.286378][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1323.286378][ T253] ipv6_find_idev+0x102/0x170 [ 1323.286378][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1323.286378][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1323.286378][ T253] netlink_rcv_skb+0x130/0x360 [ 1323.286378][ T253] netlink_unicast+0x449/0x710 [ 1323.286378][ T253] netlink_sendmsg+0x723/0xbe0 [ 1323.286378][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1323.286378][ T253] ___sys_sendmsg+0xee/0x170 [ 1323.286378][ T253] __sys_sendmsg+0xcd/0x170 [ 1323.286378][ T253] do_syscall_64+0xc6/0x1e0 [ 1323.286378][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1323.286378][ T253] [ 1323.288241][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1323.288241][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1323.288241][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1323.288241][ T253] ipv6_find_idev+0x102/0x170 [ 1323.288241][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1323.288241][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1323.288241][ T253] netlink_rcv_skb+0x130/0x360 [ 1323.288241][ T253] netlink_unicast+0x449/0x710 [ 1323.288241][ T253] netlink_sendmsg+0x723/0xbe0 [ 1323.288241][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1323.288241][ T253] ___sys_sendmsg+0xee/0x170 [ 1323.288241][ T253] __sys_sendmsg+0xcd/0x170 [ 1323.288241][ T253] do_syscall_64+0xc6/0x1e0 [ 1323.288241][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1323.288241][ T253] [ 1333.530282][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1333.530727][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1333.530727][ T253] dst_init+0x84/0x4a0 [ 1333.530727][ T253] dst_alloc+0x97/0x150 [ 1333.530727][ T253] ip6_dst_alloc+0x23/0x90 [ 1333.530727][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1333.530727][ T253] ip6_pol_route+0x56f/0x840 [ 1333.530727][ T253] fib6_rule_lookup+0x334/0x630 [ 1333.530727][ T253] ip6_route_output_flags+0x259/0x480 [ 1333.530727][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1333.530727][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1333.530727][ T253] netlink_rcv_skb+0x130/0x360 [ 1333.530727][ T253] netlink_unicast+0x449/0x710 [ 1333.530727][ T253] netlink_sendmsg+0x723/0xbe0 [ 1333.530727][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1333.530727][ T253] ___sys_sendmsg+0xee/0x170 [ 1333.530727][ T253] __sys_sendmsg+0xcd/0x170 [ 1333.530727][ T253] do_syscall_64+0xc6/0x1e0 [ 1333.530727][ T253] [ 1333.532999][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1333.532999][ T253] netdev_get_by_index+0x5e/0x80 [ 1333.532999][ T253] fib6_nh_init+0x3d8/0x1580 [ 1333.532999][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1333.532999][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1333.532999][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1333.532999][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1333.532999][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1333.532999][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1333.532999][ T253] addrconf_dad_begin+0x310/0x670 [ 1333.532999][ T253] addrconf_dad_work+0x10b/0xab0 [ 1333.532999][ T253] process_one_work+0x84d/0x18a0 [ 1333.532999][ T253] worker_thread+0x587/0xd30 [ 1333.532999][ T253] kthread+0x28a/0x350 [ 1333.532999][ T253] ret_from_fork+0x31/0x70 [ 1333.532999][ T253] ret_from_fork_asm+0x1a/0x30 [ 1333.532999][ T253] [ 1333.535177][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1333.535177][ T253] netdev_get_by_index+0x5e/0x80 [ 1333.535177][ T253] fib6_nh_init+0x3d8/0x1580 [ 1333.535177][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1333.535177][ T253] ip6_route_add+0x1c/0x140 [ 1333.535177][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1333.535177][ T253] inet6_addr_add+0x4f8/0xa40 [ 1333.535177][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1333.535177][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1333.535177][ T253] netlink_rcv_skb+0x130/0x360 [ 1333.535177][ T253] netlink_unicast+0x449/0x710 [ 1333.535177][ T253] netlink_sendmsg+0x723/0xbe0 [ 1333.535177][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1333.535177][ T253] ___sys_sendmsg+0xee/0x170 [ 1333.535177][ T253] __sys_sendmsg+0xcd/0x170 [ 1333.535177][ T253] do_syscall_64+0xc6/0x1e0 [ 1333.535177][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1333.535177][ T253] [ 1333.537451][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1333.537451][ T253] netdev_get_by_index+0x5e/0x80 [ 1333.537451][ T253] fib6_nh_init+0x3d8/0x1580 [ 1333.537451][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1333.537451][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1333.537451][ T253] ipv6_add_addr+0x411/0x2000 [ 1333.537451][ T253] inet6_addr_add+0x30e/0xa40 [ 1333.537451][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1333.537451][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1333.537451][ T253] netlink_rcv_skb+0x130/0x360 [ 1333.537451][ T253] netlink_unicast+0x449/0x710 [ 1333.537451][ T253] netlink_sendmsg+0x723/0xbe0 [ 1333.537451][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1333.537451][ T253] ___sys_sendmsg+0xee/0x170 [ 1333.537451][ T253] __sys_sendmsg+0xcd/0x170 [ 1333.537451][ T253] do_syscall_64+0xc6/0x1e0 [ 1333.537451][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1333.537451][ T253] [ 1333.539732][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1333.539732][ T253] netdev_get_by_index+0x5e/0x80 [ 1333.539732][ T253] fib6_nh_init+0x3d8/0x1580 [ 1333.539732][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1333.539732][ T253] ip6_route_add+0x1c/0x140 [ 1333.539732][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1333.539732][ T253] addrconf_add_dev+0xe2/0x170 [ 1333.539732][ T253] inet6_addr_add+0x12f/0xa40 [ 1333.539732][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1333.539732][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1333.539732][ T253] netlink_rcv_skb+0x130/0x360 [ 1333.539732][ T253] netlink_unicast+0x449/0x710 [ 1333.539732][ T253] netlink_sendmsg+0x723/0xbe0 [ 1333.539732][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1333.539732][ T253] ___sys_sendmsg+0xee/0x170 [ 1333.539732][ T253] __sys_sendmsg+0xcd/0x170 [ 1333.539732][ T253] do_syscall_64+0xc6/0x1e0 [ 1333.539732][ T253] [ 1333.541965][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1333.541965][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1333.541965][ T253] ipv6_find_idev+0x102/0x170 [ 1333.541965][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1333.541965][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1333.541965][ T253] netlink_rcv_skb+0x130/0x360 [ 1333.541965][ T253] netlink_unicast+0x449/0x710 [ 1333.541965][ T253] netlink_sendmsg+0x723/0xbe0 [ 1333.541965][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1333.541965][ T253] ___sys_sendmsg+0xee/0x170 [ 1333.541965][ T253] __sys_sendmsg+0xcd/0x170 [ 1333.541965][ T253] do_syscall_64+0xc6/0x1e0 [ 1333.541965][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1333.541965][ T253] [ 1333.543828][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1333.543828][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1333.543828][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1333.543828][ T253] ipv6_find_idev+0x102/0x170 [ 1333.543828][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1333.543828][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1333.543828][ T253] netlink_rcv_skb+0x130/0x360 [ 1333.543828][ T253] netlink_unicast+0x449/0x710 [ 1333.543828][ T253] netlink_sendmsg+0x723/0xbe0 [ 1333.543828][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1333.543828][ T253] ___sys_sendmsg+0xee/0x170 [ 1333.543828][ T253] __sys_sendmsg+0xcd/0x170 [ 1333.543828][ T253] do_syscall_64+0xc6/0x1e0 [ 1333.543828][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1333.543828][ T253] [ 1343.658285][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1343.658702][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1343.658702][ T253] dst_init+0x84/0x4a0 [ 1343.658702][ T253] dst_alloc+0x97/0x150 [ 1343.658702][ T253] ip6_dst_alloc+0x23/0x90 [ 1343.658702][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1343.658702][ T253] ip6_pol_route+0x56f/0x840 [ 1343.658702][ T253] fib6_rule_lookup+0x334/0x630 [ 1343.658702][ T253] ip6_route_output_flags+0x259/0x480 [ 1343.658702][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1343.658702][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1343.658702][ T253] netlink_rcv_skb+0x130/0x360 [ 1343.658702][ T253] netlink_unicast+0x449/0x710 [ 1343.658702][ T253] netlink_sendmsg+0x723/0xbe0 [ 1343.658702][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1343.658702][ T253] ___sys_sendmsg+0xee/0x170 [ 1343.658702][ T253] __sys_sendmsg+0xcd/0x170 [ 1343.658702][ T253] do_syscall_64+0xc6/0x1e0 [ 1343.658702][ T253] [ 1343.660919][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1343.660919][ T253] netdev_get_by_index+0x5e/0x80 [ 1343.660919][ T253] fib6_nh_init+0x3d8/0x1580 [ 1343.660919][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1343.660919][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1343.660919][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1343.660919][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1343.660919][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1343.660919][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1343.660919][ T253] addrconf_dad_begin+0x310/0x670 [ 1343.660919][ T253] addrconf_dad_work+0x10b/0xab0 [ 1343.660919][ T253] process_one_work+0x84d/0x18a0 [ 1343.660919][ T253] worker_thread+0x587/0xd30 [ 1343.660919][ T253] kthread+0x28a/0x350 [ 1343.660919][ T253] ret_from_fork+0x31/0x70 [ 1343.660919][ T253] ret_from_fork_asm+0x1a/0x30 [ 1343.660919][ T253] [ 1343.663294][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1343.663294][ T253] netdev_get_by_index+0x5e/0x80 [ 1343.663294][ T253] fib6_nh_init+0x3d8/0x1580 [ 1343.663294][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1343.663294][ T253] ip6_route_add+0x1c/0x140 [ 1343.663294][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1343.663294][ T253] inet6_addr_add+0x4f8/0xa40 [ 1343.663294][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1343.663294][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1343.663294][ T253] netlink_rcv_skb+0x130/0x360 [ 1343.663294][ T253] netlink_unicast+0x449/0x710 [ 1343.663294][ T253] netlink_sendmsg+0x723/0xbe0 [ 1343.663294][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1343.663294][ T253] ___sys_sendmsg+0xee/0x170 [ 1343.663294][ T253] __sys_sendmsg+0xcd/0x170 [ 1343.663294][ T253] do_syscall_64+0xc6/0x1e0 [ 1343.663294][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1343.663294][ T253] [ 1343.665726][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1343.665726][ T253] netdev_get_by_index+0x5e/0x80 [ 1343.665726][ T253] fib6_nh_init+0x3d8/0x1580 [ 1343.665726][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1343.665726][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1343.665726][ T253] ipv6_add_addr+0x411/0x2000 [ 1343.665726][ T253] inet6_addr_add+0x30e/0xa40 [ 1343.665726][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1343.665726][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1343.665726][ T253] netlink_rcv_skb+0x130/0x360 [ 1343.665726][ T253] netlink_unicast+0x449/0x710 [ 1343.665726][ T253] netlink_sendmsg+0x723/0xbe0 [ 1343.665726][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1343.665726][ T253] ___sys_sendmsg+0xee/0x170 [ 1343.665726][ T253] __sys_sendmsg+0xcd/0x170 [ 1343.665726][ T253] do_syscall_64+0xc6/0x1e0 [ 1343.665726][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1343.665726][ T253] [ 1343.668142][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1343.668142][ T253] netdev_get_by_index+0x5e/0x80 [ 1343.668142][ T253] fib6_nh_init+0x3d8/0x1580 [ 1343.668142][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1343.668142][ T253] ip6_route_add+0x1c/0x140 [ 1343.668142][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1343.668142][ T253] addrconf_add_dev+0xe2/0x170 [ 1343.668142][ T253] inet6_addr_add+0x12f/0xa40 [ 1343.668142][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1343.668142][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1343.668142][ T253] netlink_rcv_skb+0x130/0x360 [ 1343.668142][ T253] netlink_unicast+0x449/0x710 [ 1343.668142][ T253] netlink_sendmsg+0x723/0xbe0 [ 1343.668142][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1343.668142][ T253] ___sys_sendmsg+0xee/0x170 [ 1343.668142][ T253] __sys_sendmsg+0xcd/0x170 [ 1343.668142][ T253] do_syscall_64+0xc6/0x1e0 [ 1343.668142][ T253] [ 1343.670532][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1343.670532][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1343.670532][ T253] ipv6_find_idev+0x102/0x170 [ 1343.670532][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1343.670532][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1343.670532][ T253] netlink_rcv_skb+0x130/0x360 [ 1343.670532][ T253] netlink_unicast+0x449/0x710 [ 1343.670532][ T253] netlink_sendmsg+0x723/0xbe0 [ 1343.670532][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1343.670532][ T253] ___sys_sendmsg+0xee/0x170 [ 1343.670532][ T253] __sys_sendmsg+0xcd/0x170 [ 1343.670532][ T253] do_syscall_64+0xc6/0x1e0 [ 1343.670532][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1343.670532][ T253] [ 1343.672439][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1343.672439][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1343.672439][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1343.672439][ T253] ipv6_find_idev+0x102/0x170 [ 1343.672439][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1343.672439][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1343.672439][ T253] netlink_rcv_skb+0x130/0x360 [ 1343.672439][ T253] netlink_unicast+0x449/0x710 [ 1343.672439][ T253] netlink_sendmsg+0x723/0xbe0 [ 1343.672439][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1343.672439][ T253] ___sys_sendmsg+0xee/0x170 [ 1343.672439][ T253] __sys_sendmsg+0xcd/0x170 [ 1343.672439][ T253] do_syscall_64+0xc6/0x1e0 [ 1343.672439][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1343.672439][ T253] [ 1353.914313][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1353.914848][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1353.914848][ T253] dst_init+0x84/0x4a0 [ 1353.914848][ T253] dst_alloc+0x97/0x150 [ 1353.914848][ T253] ip6_dst_alloc+0x23/0x90 [ 1353.914848][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1353.914848][ T253] ip6_pol_route+0x56f/0x840 [ 1353.914848][ T253] fib6_rule_lookup+0x334/0x630 [ 1353.914848][ T253] ip6_route_output_flags+0x259/0x480 [ 1353.914848][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1353.914848][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1353.914848][ T253] netlink_rcv_skb+0x130/0x360 [ 1353.914848][ T253] netlink_unicast+0x449/0x710 [ 1353.914848][ T253] netlink_sendmsg+0x723/0xbe0 [ 1353.914848][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1353.914848][ T253] ___sys_sendmsg+0xee/0x170 [ 1353.914848][ T253] __sys_sendmsg+0xcd/0x170 [ 1353.914848][ T253] do_syscall_64+0xc6/0x1e0 [ 1353.914848][ T253] [ 1353.917089][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1353.917089][ T253] netdev_get_by_index+0x5e/0x80 [ 1353.917089][ T253] fib6_nh_init+0x3d8/0x1580 [ 1353.917089][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1353.917089][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1353.917089][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1353.917089][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1353.917089][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1353.917089][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1353.917089][ T253] addrconf_dad_begin+0x310/0x670 [ 1353.917089][ T253] addrconf_dad_work+0x10b/0xab0 [ 1353.917089][ T253] process_one_work+0x84d/0x18a0 [ 1353.917089][ T253] worker_thread+0x587/0xd30 [ 1353.917089][ T253] kthread+0x28a/0x350 [ 1353.917089][ T253] ret_from_fork+0x31/0x70 [ 1353.917089][ T253] ret_from_fork_asm+0x1a/0x30 [ 1353.917089][ T253] [ 1353.919259][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1353.919259][ T253] netdev_get_by_index+0x5e/0x80 [ 1353.919259][ T253] fib6_nh_init+0x3d8/0x1580 [ 1353.919259][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1353.919259][ T253] ip6_route_add+0x1c/0x140 [ 1353.919259][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1353.919259][ T253] inet6_addr_add+0x4f8/0xa40 [ 1353.919259][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1353.919259][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1353.919259][ T253] netlink_rcv_skb+0x130/0x360 [ 1353.919259][ T253] netlink_unicast+0x449/0x710 [ 1353.919259][ T253] netlink_sendmsg+0x723/0xbe0 [ 1353.919259][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1353.919259][ T253] ___sys_sendmsg+0xee/0x170 [ 1353.919259][ T253] __sys_sendmsg+0xcd/0x170 [ 1353.919259][ T253] do_syscall_64+0xc6/0x1e0 [ 1353.919259][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1353.919259][ T253] [ 1353.921717][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1353.921717][ T253] netdev_get_by_index+0x5e/0x80 [ 1353.921717][ T253] fib6_nh_init+0x3d8/0x1580 [ 1353.921717][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1353.921717][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1353.921717][ T253] ipv6_add_addr+0x411/0x2000 [ 1353.921717][ T253] inet6_addr_add+0x30e/0xa40 [ 1353.921717][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1353.921717][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1353.921717][ T253] netlink_rcv_skb+0x130/0x360 [ 1353.921717][ T253] netlink_unicast+0x449/0x710 [ 1353.921717][ T253] netlink_sendmsg+0x723/0xbe0 [ 1353.921717][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1353.921717][ T253] ___sys_sendmsg+0xee/0x170 [ 1353.921717][ T253] __sys_sendmsg+0xcd/0x170 [ 1353.921717][ T253] do_syscall_64+0xc6/0x1e0 [ 1353.921717][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1353.921717][ T253] [ 1353.923995][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1353.923995][ T253] netdev_get_by_index+0x5e/0x80 [ 1353.923995][ T253] fib6_nh_init+0x3d8/0x1580 [ 1353.923995][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1353.923995][ T253] ip6_route_add+0x1c/0x140 [ 1353.923995][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1353.923995][ T253] addrconf_add_dev+0xe2/0x170 [ 1353.923995][ T253] inet6_addr_add+0x12f/0xa40 [ 1353.923995][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1353.923995][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1353.923995][ T253] netlink_rcv_skb+0x130/0x360 [ 1353.923995][ T253] netlink_unicast+0x449/0x710 [ 1353.923995][ T253] netlink_sendmsg+0x723/0xbe0 [ 1353.923995][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1353.923995][ T253] ___sys_sendmsg+0xee/0x170 [ 1353.923995][ T253] __sys_sendmsg+0xcd/0x170 [ 1353.923995][ T253] do_syscall_64+0xc6/0x1e0 [ 1353.923995][ T253] [ 1353.926234][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1353.926234][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1353.926234][ T253] ipv6_find_idev+0x102/0x170 [ 1353.926234][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1353.926234][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1353.926234][ T253] netlink_rcv_skb+0x130/0x360 [ 1353.926234][ T253] netlink_unicast+0x449/0x710 [ 1353.926234][ T253] netlink_sendmsg+0x723/0xbe0 [ 1353.926234][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1353.926234][ T253] ___sys_sendmsg+0xee/0x170 [ 1353.926234][ T253] __sys_sendmsg+0xcd/0x170 [ 1353.926234][ T253] do_syscall_64+0xc6/0x1e0 [ 1353.926234][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1353.926234][ T253] [ 1353.927973][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1353.927973][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1353.927973][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1353.927973][ T253] ipv6_find_idev+0x102/0x170 [ 1353.927973][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1353.927973][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1353.927973][ T253] netlink_rcv_skb+0x130/0x360 [ 1353.927973][ T253] netlink_unicast+0x449/0x710 [ 1353.927973][ T253] netlink_sendmsg+0x723/0xbe0 [ 1353.927973][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1353.927973][ T253] ___sys_sendmsg+0xee/0x170 [ 1353.927973][ T253] __sys_sendmsg+0xcd/0x170 [ 1353.927973][ T253] do_syscall_64+0xc6/0x1e0 [ 1353.927973][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1353.927973][ T253] [ 1364.170286][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1364.170839][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1364.170839][ T253] dst_init+0x84/0x4a0 [ 1364.170839][ T253] dst_alloc+0x97/0x150 [ 1364.170839][ T253] ip6_dst_alloc+0x23/0x90 [ 1364.170839][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1364.170839][ T253] ip6_pol_route+0x56f/0x840 [ 1364.170839][ T253] fib6_rule_lookup+0x334/0x630 [ 1364.170839][ T253] ip6_route_output_flags+0x259/0x480 [ 1364.170839][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1364.170839][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1364.170839][ T253] netlink_rcv_skb+0x130/0x360 [ 1364.170839][ T253] netlink_unicast+0x449/0x710 [ 1364.170839][ T253] netlink_sendmsg+0x723/0xbe0 [ 1364.170839][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1364.170839][ T253] ___sys_sendmsg+0xee/0x170 [ 1364.170839][ T253] __sys_sendmsg+0xcd/0x170 [ 1364.170839][ T253] do_syscall_64+0xc6/0x1e0 [ 1364.170839][ T253] [ 1364.173071][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1364.173071][ T253] netdev_get_by_index+0x5e/0x80 [ 1364.173071][ T253] fib6_nh_init+0x3d8/0x1580 [ 1364.173071][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1364.173071][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1364.173071][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1364.173071][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1364.173071][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1364.173071][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1364.173071][ T253] addrconf_dad_begin+0x310/0x670 [ 1364.173071][ T253] addrconf_dad_work+0x10b/0xab0 [ 1364.173071][ T253] process_one_work+0x84d/0x18a0 [ 1364.173071][ T253] worker_thread+0x587/0xd30 [ 1364.173071][ T253] kthread+0x28a/0x350 [ 1364.173071][ T253] ret_from_fork+0x31/0x70 [ 1364.173071][ T253] ret_from_fork_asm+0x1a/0x30 [ 1364.173071][ T253] [ 1364.175224][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1364.175224][ T253] netdev_get_by_index+0x5e/0x80 [ 1364.175224][ T253] fib6_nh_init+0x3d8/0x1580 [ 1364.175224][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1364.175224][ T253] ip6_route_add+0x1c/0x140 [ 1364.175224][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1364.175224][ T253] inet6_addr_add+0x4f8/0xa40 [ 1364.175224][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1364.175224][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1364.175224][ T253] netlink_rcv_skb+0x130/0x360 [ 1364.175224][ T253] netlink_unicast+0x449/0x710 [ 1364.175224][ T253] netlink_sendmsg+0x723/0xbe0 [ 1364.175224][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1364.175224][ T253] ___sys_sendmsg+0xee/0x170 [ 1364.175224][ T253] __sys_sendmsg+0xcd/0x170 [ 1364.175224][ T253] do_syscall_64+0xc6/0x1e0 [ 1364.175224][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1364.175224][ T253] [ 1364.177480][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1364.177480][ T253] netdev_get_by_index+0x5e/0x80 [ 1364.177480][ T253] fib6_nh_init+0x3d8/0x1580 [ 1364.177480][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1364.177480][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1364.177480][ T253] ipv6_add_addr+0x411/0x2000 [ 1364.177480][ T253] inet6_addr_add+0x30e/0xa40 [ 1364.177480][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1364.177480][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1364.177480][ T253] netlink_rcv_skb+0x130/0x360 [ 1364.177480][ T253] netlink_unicast+0x449/0x710 [ 1364.177480][ T253] netlink_sendmsg+0x723/0xbe0 [ 1364.177480][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1364.177480][ T253] ___sys_sendmsg+0xee/0x170 [ 1364.177480][ T253] __sys_sendmsg+0xcd/0x170 [ 1364.177480][ T253] do_syscall_64+0xc6/0x1e0 [ 1364.177480][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1364.177480][ T253] [ 1364.180292][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1364.180292][ T253] netdev_get_by_index+0x5e/0x80 [ 1364.180292][ T253] fib6_nh_init+0x3d8/0x1580 [ 1364.180292][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1364.180292][ T253] ip6_route_add+0x1c/0x140 [ 1364.180292][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1364.180292][ T253] addrconf_add_dev+0xe2/0x170 [ 1364.180292][ T253] inet6_addr_add+0x12f/0xa40 [ 1364.180292][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1364.180292][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1364.180292][ T253] netlink_rcv_skb+0x130/0x360 [ 1364.180292][ T253] netlink_unicast+0x449/0x710 [ 1364.180292][ T253] netlink_sendmsg+0x723/0xbe0 [ 1364.180292][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1364.180292][ T253] ___sys_sendmsg+0xee/0x170 [ 1364.180292][ T253] __sys_sendmsg+0xcd/0x170 [ 1364.180292][ T253] do_syscall_64+0xc6/0x1e0 [ 1364.180292][ T253] [ 1364.182500][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1364.182500][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1364.182500][ T253] ipv6_find_idev+0x102/0x170 [ 1364.182500][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1364.182500][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1364.182500][ T253] netlink_rcv_skb+0x130/0x360 [ 1364.182500][ T253] netlink_unicast+0x449/0x710 [ 1364.182500][ T253] netlink_sendmsg+0x723/0xbe0 [ 1364.182500][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1364.182500][ T253] ___sys_sendmsg+0xee/0x170 [ 1364.182500][ T253] __sys_sendmsg+0xcd/0x170 [ 1364.182500][ T253] do_syscall_64+0xc6/0x1e0 [ 1364.182500][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1364.182500][ T253] [ 1364.184654][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1364.184654][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1364.184654][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1364.184654][ T253] ipv6_find_idev+0x102/0x170 [ 1364.184654][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1364.184654][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1364.184654][ T253] netlink_rcv_skb+0x130/0x360 [ 1364.184654][ T253] netlink_unicast+0x449/0x710 [ 1364.184654][ T253] netlink_sendmsg+0x723/0xbe0 [ 1364.184654][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1364.184654][ T253] ___sys_sendmsg+0xee/0x170 [ 1364.184654][ T253] __sys_sendmsg+0xcd/0x170 [ 1364.184654][ T253] do_syscall_64+0xc6/0x1e0 [ 1364.184654][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1364.184654][ T253] [ 1374.426276][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1374.426739][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1374.426739][ T253] dst_init+0x84/0x4a0 [ 1374.426739][ T253] dst_alloc+0x97/0x150 [ 1374.426739][ T253] ip6_dst_alloc+0x23/0x90 [ 1374.426739][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1374.426739][ T253] ip6_pol_route+0x56f/0x840 [ 1374.426739][ T253] fib6_rule_lookup+0x334/0x630 [ 1374.426739][ T253] ip6_route_output_flags+0x259/0x480 [ 1374.426739][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1374.426739][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1374.426739][ T253] netlink_rcv_skb+0x130/0x360 [ 1374.426739][ T253] netlink_unicast+0x449/0x710 [ 1374.426739][ T253] netlink_sendmsg+0x723/0xbe0 [ 1374.426739][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1374.426739][ T253] ___sys_sendmsg+0xee/0x170 [ 1374.426739][ T253] __sys_sendmsg+0xcd/0x170 [ 1374.426739][ T253] do_syscall_64+0xc6/0x1e0 [ 1374.426739][ T253] [ 1374.429126][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1374.429126][ T253] netdev_get_by_index+0x5e/0x80 [ 1374.429126][ T253] fib6_nh_init+0x3d8/0x1580 [ 1374.429126][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1374.429126][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1374.429126][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1374.429126][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1374.429126][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1374.429126][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1374.429126][ T253] addrconf_dad_begin+0x310/0x670 [ 1374.429126][ T253] addrconf_dad_work+0x10b/0xab0 [ 1374.429126][ T253] process_one_work+0x84d/0x18a0 [ 1374.429126][ T253] worker_thread+0x587/0xd30 [ 1374.429126][ T253] kthread+0x28a/0x350 [ 1374.429126][ T253] ret_from_fork+0x31/0x70 [ 1374.429126][ T253] ret_from_fork_asm+0x1a/0x30 [ 1374.429126][ T253] [ 1374.431829][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1374.431829][ T253] netdev_get_by_index+0x5e/0x80 [ 1374.431829][ T253] fib6_nh_init+0x3d8/0x1580 [ 1374.431829][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1374.431829][ T253] ip6_route_add+0x1c/0x140 [ 1374.431829][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1374.431829][ T253] inet6_addr_add+0x4f8/0xa40 [ 1374.431829][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1374.431829][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1374.431829][ T253] netlink_rcv_skb+0x130/0x360 [ 1374.431829][ T253] netlink_unicast+0x449/0x710 [ 1374.431829][ T253] netlink_sendmsg+0x723/0xbe0 [ 1374.431829][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1374.431829][ T253] ___sys_sendmsg+0xee/0x170 [ 1374.431829][ T253] __sys_sendmsg+0xcd/0x170 [ 1374.431829][ T253] do_syscall_64+0xc6/0x1e0 [ 1374.431829][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1374.431829][ T253] [ 1374.434243][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1374.434243][ T253] netdev_get_by_index+0x5e/0x80 [ 1374.434243][ T253] fib6_nh_init+0x3d8/0x1580 [ 1374.434243][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1374.434243][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1374.434243][ T253] ipv6_add_addr+0x411/0x2000 [ 1374.434243][ T253] inet6_addr_add+0x30e/0xa40 [ 1374.434243][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1374.434243][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1374.434243][ T253] netlink_rcv_skb+0x130/0x360 [ 1374.434243][ T253] netlink_unicast+0x449/0x710 [ 1374.434243][ T253] netlink_sendmsg+0x723/0xbe0 [ 1374.434243][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1374.434243][ T253] ___sys_sendmsg+0xee/0x170 [ 1374.434243][ T253] __sys_sendmsg+0xcd/0x170 [ 1374.434243][ T253] do_syscall_64+0xc6/0x1e0 [ 1374.434243][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1374.434243][ T253] [ 1374.436648][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1374.436648][ T253] netdev_get_by_index+0x5e/0x80 [ 1374.436648][ T253] fib6_nh_init+0x3d8/0x1580 [ 1374.436648][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1374.436648][ T253] ip6_route_add+0x1c/0x140 [ 1374.436648][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1374.436648][ T253] addrconf_add_dev+0xe2/0x170 [ 1374.436648][ T253] inet6_addr_add+0x12f/0xa40 [ 1374.436648][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1374.436648][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1374.436648][ T253] netlink_rcv_skb+0x130/0x360 [ 1374.436648][ T253] netlink_unicast+0x449/0x710 [ 1374.436648][ T253] netlink_sendmsg+0x723/0xbe0 [ 1374.436648][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1374.436648][ T253] ___sys_sendmsg+0xee/0x170 [ 1374.436648][ T253] __sys_sendmsg+0xcd/0x170 [ 1374.436648][ T253] do_syscall_64+0xc6/0x1e0 [ 1374.436648][ T253] [ 1374.439045][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1374.439045][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1374.439045][ T253] ipv6_find_idev+0x102/0x170 [ 1374.439045][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1374.439045][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1374.439045][ T253] netlink_rcv_skb+0x130/0x360 [ 1374.439045][ T253] netlink_unicast+0x449/0x710 [ 1374.439045][ T253] netlink_sendmsg+0x723/0xbe0 [ 1374.439045][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1374.439045][ T253] ___sys_sendmsg+0xee/0x170 [ 1374.439045][ T253] __sys_sendmsg+0xcd/0x170 [ 1374.439045][ T253] do_syscall_64+0xc6/0x1e0 [ 1374.439045][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1374.439045][ T253] [ 1374.440928][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1374.440928][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1374.440928][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1374.440928][ T253] ipv6_find_idev+0x102/0x170 [ 1374.440928][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1374.440928][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1374.440928][ T253] netlink_rcv_skb+0x130/0x360 [ 1374.440928][ T253] netlink_unicast+0x449/0x710 [ 1374.440928][ T253] netlink_sendmsg+0x723/0xbe0 [ 1374.440928][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1374.440928][ T253] ___sys_sendmsg+0xee/0x170 [ 1374.440928][ T253] __sys_sendmsg+0xcd/0x170 [ 1374.440928][ T253] do_syscall_64+0xc6/0x1e0 [ 1374.440928][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1374.440928][ T253] [ 1384.682312][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1384.682822][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1384.682822][ T253] dst_init+0x84/0x4a0 [ 1384.682822][ T253] dst_alloc+0x97/0x150 [ 1384.682822][ T253] ip6_dst_alloc+0x23/0x90 [ 1384.682822][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1384.682822][ T253] ip6_pol_route+0x56f/0x840 [ 1384.682822][ T253] fib6_rule_lookup+0x334/0x630 [ 1384.682822][ T253] ip6_route_output_flags+0x259/0x480 [ 1384.682822][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1384.682822][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1384.682822][ T253] netlink_rcv_skb+0x130/0x360 [ 1384.682822][ T253] netlink_unicast+0x449/0x710 [ 1384.682822][ T253] netlink_sendmsg+0x723/0xbe0 [ 1384.682822][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1384.682822][ T253] ___sys_sendmsg+0xee/0x170 [ 1384.682822][ T253] __sys_sendmsg+0xcd/0x170 [ 1384.682822][ T253] do_syscall_64+0xc6/0x1e0 [ 1384.682822][ T253] [ 1384.685217][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1384.685217][ T253] netdev_get_by_index+0x5e/0x80 [ 1384.685217][ T253] fib6_nh_init+0x3d8/0x1580 [ 1384.685217][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1384.685217][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1384.685217][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1384.685217][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1384.685217][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1384.685217][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1384.685217][ T253] addrconf_dad_begin+0x310/0x670 [ 1384.685217][ T253] addrconf_dad_work+0x10b/0xab0 [ 1384.685217][ T253] process_one_work+0x84d/0x18a0 [ 1384.685217][ T253] worker_thread+0x587/0xd30 [ 1384.685217][ T253] kthread+0x28a/0x350 [ 1384.685217][ T253] ret_from_fork+0x31/0x70 [ 1384.685217][ T253] ret_from_fork_asm+0x1a/0x30 [ 1384.685217][ T253] [ 1384.687550][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1384.687550][ T253] netdev_get_by_index+0x5e/0x80 [ 1384.687550][ T253] fib6_nh_init+0x3d8/0x1580 [ 1384.687550][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1384.687550][ T253] ip6_route_add+0x1c/0x140 [ 1384.687550][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1384.687550][ T253] inet6_addr_add+0x4f8/0xa40 [ 1384.687550][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1384.687550][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1384.687550][ T253] netlink_rcv_skb+0x130/0x360 [ 1384.687550][ T253] netlink_unicast+0x449/0x710 [ 1384.687550][ T253] netlink_sendmsg+0x723/0xbe0 [ 1384.687550][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1384.687550][ T253] ___sys_sendmsg+0xee/0x170 [ 1384.687550][ T253] __sys_sendmsg+0xcd/0x170 [ 1384.687550][ T253] do_syscall_64+0xc6/0x1e0 [ 1384.687550][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1384.687550][ T253] [ 1384.689927][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1384.689927][ T253] netdev_get_by_index+0x5e/0x80 [ 1384.689927][ T253] fib6_nh_init+0x3d8/0x1580 [ 1384.689927][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1384.689927][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1384.689927][ T253] ipv6_add_addr+0x411/0x2000 [ 1384.689927][ T253] inet6_addr_add+0x30e/0xa40 [ 1384.689927][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1384.689927][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1384.689927][ T253] netlink_rcv_skb+0x130/0x360 [ 1384.689927][ T253] netlink_unicast+0x449/0x710 [ 1384.689927][ T253] netlink_sendmsg+0x723/0xbe0 [ 1384.689927][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1384.689927][ T253] ___sys_sendmsg+0xee/0x170 [ 1384.689927][ T253] __sys_sendmsg+0xcd/0x170 [ 1384.689927][ T253] do_syscall_64+0xc6/0x1e0 [ 1384.689927][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1384.689927][ T253] [ 1384.692350][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1384.692350][ T253] netdev_get_by_index+0x5e/0x80 [ 1384.692350][ T253] fib6_nh_init+0x3d8/0x1580 [ 1384.692350][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1384.692350][ T253] ip6_route_add+0x1c/0x140 [ 1384.692350][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1384.692350][ T253] addrconf_add_dev+0xe2/0x170 [ 1384.692350][ T253] inet6_addr_add+0x12f/0xa40 [ 1384.692350][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1384.692350][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1384.692350][ T253] netlink_rcv_skb+0x130/0x360 [ 1384.692350][ T253] netlink_unicast+0x449/0x710 [ 1384.692350][ T253] netlink_sendmsg+0x723/0xbe0 [ 1384.692350][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1384.692350][ T253] ___sys_sendmsg+0xee/0x170 [ 1384.692350][ T253] __sys_sendmsg+0xcd/0x170 [ 1384.692350][ T253] do_syscall_64+0xc6/0x1e0 [ 1384.692350][ T253] [ 1384.694709][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1384.694709][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1384.694709][ T253] ipv6_find_idev+0x102/0x170 [ 1384.694709][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1384.694709][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1384.694709][ T253] netlink_rcv_skb+0x130/0x360 [ 1384.694709][ T253] netlink_unicast+0x449/0x710 [ 1384.694709][ T253] netlink_sendmsg+0x723/0xbe0 [ 1384.694709][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1384.694709][ T253] ___sys_sendmsg+0xee/0x170 [ 1384.694709][ T253] __sys_sendmsg+0xcd/0x170 [ 1384.694709][ T253] do_syscall_64+0xc6/0x1e0 [ 1384.694709][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1384.694709][ T253] [ 1384.696553][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1384.696553][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1384.696553][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1384.696553][ T253] ipv6_find_idev+0x102/0x170 [ 1384.696553][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1384.696553][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1384.696553][ T253] netlink_rcv_skb+0x130/0x360 [ 1384.696553][ T253] netlink_unicast+0x449/0x710 [ 1384.696553][ T253] netlink_sendmsg+0x723/0xbe0 [ 1384.696553][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1384.696553][ T253] ___sys_sendmsg+0xee/0x170 [ 1384.696553][ T253] __sys_sendmsg+0xcd/0x170 [ 1384.696553][ T253] do_syscall_64+0xc6/0x1e0 [ 1384.696553][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1384.696553][ T253] [ 1394.738327][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1394.738797][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1394.738797][ T253] dst_init+0x84/0x4a0 [ 1394.738797][ T253] dst_alloc+0x97/0x150 [ 1394.738797][ T253] ip6_dst_alloc+0x23/0x90 [ 1394.738797][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1394.738797][ T253] ip6_pol_route+0x56f/0x840 [ 1394.738797][ T253] fib6_rule_lookup+0x334/0x630 [ 1394.738797][ T253] ip6_route_output_flags+0x259/0x480 [ 1394.738797][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1394.738797][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1394.738797][ T253] netlink_rcv_skb+0x130/0x360 [ 1394.738797][ T253] netlink_unicast+0x449/0x710 [ 1394.738797][ T253] netlink_sendmsg+0x723/0xbe0 [ 1394.738797][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1394.738797][ T253] ___sys_sendmsg+0xee/0x170 [ 1394.738797][ T253] __sys_sendmsg+0xcd/0x170 [ 1394.738797][ T253] do_syscall_64+0xc6/0x1e0 [ 1394.738797][ T253] [ 1394.741003][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1394.741003][ T253] netdev_get_by_index+0x5e/0x80 [ 1394.741003][ T253] fib6_nh_init+0x3d8/0x1580 [ 1394.741003][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1394.741003][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1394.741003][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1394.741003][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1394.741003][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1394.741003][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1394.741003][ T253] addrconf_dad_begin+0x310/0x670 [ 1394.741003][ T253] addrconf_dad_work+0x10b/0xab0 [ 1394.741003][ T253] process_one_work+0x84d/0x18a0 [ 1394.741003][ T253] worker_thread+0x587/0xd30 [ 1394.741003][ T253] kthread+0x28a/0x350 [ 1394.741003][ T253] ret_from_fork+0x31/0x70 [ 1394.741003][ T253] ret_from_fork_asm+0x1a/0x30 [ 1394.741003][ T253] [ 1394.743184][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1394.743184][ T253] netdev_get_by_index+0x5e/0x80 [ 1394.743184][ T253] fib6_nh_init+0x3d8/0x1580 [ 1394.743184][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1394.743184][ T253] ip6_route_add+0x1c/0x140 [ 1394.743184][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1394.743184][ T253] inet6_addr_add+0x4f8/0xa40 [ 1394.743184][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1394.743184][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1394.743184][ T253] netlink_rcv_skb+0x130/0x360 [ 1394.743184][ T253] netlink_unicast+0x449/0x710 [ 1394.743184][ T253] netlink_sendmsg+0x723/0xbe0 [ 1394.743184][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1394.743184][ T253] ___sys_sendmsg+0xee/0x170 [ 1394.743184][ T253] __sys_sendmsg+0xcd/0x170 [ 1394.743184][ T253] do_syscall_64+0xc6/0x1e0 [ 1394.743184][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1394.743184][ T253] [ 1394.745618][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1394.745618][ T253] netdev_get_by_index+0x5e/0x80 [ 1394.745618][ T253] fib6_nh_init+0x3d8/0x1580 [ 1394.745618][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1394.745618][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1394.745618][ T253] ipv6_add_addr+0x411/0x2000 [ 1394.745618][ T253] inet6_addr_add+0x30e/0xa40 [ 1394.745618][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1394.745618][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1394.745618][ T253] netlink_rcv_skb+0x130/0x360 [ 1394.745618][ T253] netlink_unicast+0x449/0x710 [ 1394.745618][ T253] netlink_sendmsg+0x723/0xbe0 [ 1394.745618][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1394.745618][ T253] ___sys_sendmsg+0xee/0x170 [ 1394.745618][ T253] __sys_sendmsg+0xcd/0x170 [ 1394.745618][ T253] do_syscall_64+0xc6/0x1e0 [ 1394.745618][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1394.745618][ T253] [ 1394.747999][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1394.747999][ T253] netdev_get_by_index+0x5e/0x80 [ 1394.747999][ T253] fib6_nh_init+0x3d8/0x1580 [ 1394.747999][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1394.747999][ T253] ip6_route_add+0x1c/0x140 [ 1394.747999][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1394.747999][ T253] addrconf_add_dev+0xe2/0x170 [ 1394.747999][ T253] inet6_addr_add+0x12f/0xa40 [ 1394.747999][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1394.747999][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1394.747999][ T253] netlink_rcv_skb+0x130/0x360 [ 1394.747999][ T253] netlink_unicast+0x449/0x710 [ 1394.747999][ T253] netlink_sendmsg+0x723/0xbe0 [ 1394.747999][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1394.747999][ T253] ___sys_sendmsg+0xee/0x170 [ 1394.747999][ T253] __sys_sendmsg+0xcd/0x170 [ 1394.747999][ T253] do_syscall_64+0xc6/0x1e0 [ 1394.747999][ T253] [ 1394.750220][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1394.750220][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1394.750220][ T253] ipv6_find_idev+0x102/0x170 [ 1394.750220][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1394.750220][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1394.750220][ T253] netlink_rcv_skb+0x130/0x360 [ 1394.750220][ T253] netlink_unicast+0x449/0x710 [ 1394.750220][ T253] netlink_sendmsg+0x723/0xbe0 [ 1394.750220][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1394.750220][ T253] ___sys_sendmsg+0xee/0x170 [ 1394.750220][ T253] __sys_sendmsg+0xcd/0x170 [ 1394.750220][ T253] do_syscall_64+0xc6/0x1e0 [ 1394.750220][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1394.750220][ T253] [ 1394.751958][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1394.751958][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1394.751958][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1394.751958][ T253] ipv6_find_idev+0x102/0x170 [ 1394.751958][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1394.751958][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1394.751958][ T253] netlink_rcv_skb+0x130/0x360 [ 1394.751958][ T253] netlink_unicast+0x449/0x710 [ 1394.751958][ T253] netlink_sendmsg+0x723/0xbe0 [ 1394.751958][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1394.751958][ T253] ___sys_sendmsg+0xee/0x170 [ 1394.751958][ T253] __sys_sendmsg+0xcd/0x170 [ 1394.751958][ T253] do_syscall_64+0xc6/0x1e0 [ 1394.751958][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1394.751958][ T253] [ 1405.002327][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1405.002764][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1405.002764][ T253] dst_init+0x84/0x4a0 [ 1405.002764][ T253] dst_alloc+0x97/0x150 [ 1405.002764][ T253] ip6_dst_alloc+0x23/0x90 [ 1405.002764][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1405.002764][ T253] ip6_pol_route+0x56f/0x840 [ 1405.002764][ T253] fib6_rule_lookup+0x334/0x630 [ 1405.002764][ T253] ip6_route_output_flags+0x259/0x480 [ 1405.002764][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1405.002764][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1405.002764][ T253] netlink_rcv_skb+0x130/0x360 [ 1405.002764][ T253] netlink_unicast+0x449/0x710 [ 1405.002764][ T253] netlink_sendmsg+0x723/0xbe0 [ 1405.002764][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1405.002764][ T253] ___sys_sendmsg+0xee/0x170 [ 1405.002764][ T253] __sys_sendmsg+0xcd/0x170 [ 1405.002764][ T253] do_syscall_64+0xc6/0x1e0 [ 1405.002764][ T253] [ 1405.004953][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1405.004953][ T253] netdev_get_by_index+0x5e/0x80 [ 1405.004953][ T253] fib6_nh_init+0x3d8/0x1580 [ 1405.004953][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1405.004953][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1405.004953][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1405.004953][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1405.004953][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1405.004953][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1405.004953][ T253] addrconf_dad_begin+0x310/0x670 [ 1405.004953][ T253] addrconf_dad_work+0x10b/0xab0 [ 1405.004953][ T253] process_one_work+0x84d/0x18a0 [ 1405.004953][ T253] worker_thread+0x587/0xd30 [ 1405.004953][ T253] kthread+0x28a/0x350 [ 1405.004953][ T253] ret_from_fork+0x31/0x70 [ 1405.004953][ T253] ret_from_fork_asm+0x1a/0x30 [ 1405.004953][ T253] [ 1405.007088][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1405.007088][ T253] netdev_get_by_index+0x5e/0x80 [ 1405.007088][ T253] fib6_nh_init+0x3d8/0x1580 [ 1405.007088][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1405.007088][ T253] ip6_route_add+0x1c/0x140 [ 1405.007088][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1405.007088][ T253] inet6_addr_add+0x4f8/0xa40 [ 1405.007088][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1405.007088][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1405.007088][ T253] netlink_rcv_skb+0x130/0x360 [ 1405.007088][ T253] netlink_unicast+0x449/0x710 [ 1405.007088][ T253] netlink_sendmsg+0x723/0xbe0 [ 1405.007088][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1405.007088][ T253] ___sys_sendmsg+0xee/0x170 [ 1405.007088][ T253] __sys_sendmsg+0xcd/0x170 [ 1405.007088][ T253] do_syscall_64+0xc6/0x1e0 [ 1405.007088][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1405.007088][ T253] [ 1405.009355][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1405.009355][ T253] netdev_get_by_index+0x5e/0x80 [ 1405.009355][ T253] fib6_nh_init+0x3d8/0x1580 [ 1405.009355][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1405.009355][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1405.009355][ T253] ipv6_add_addr+0x411/0x2000 [ 1405.009355][ T253] inet6_addr_add+0x30e/0xa40 [ 1405.009355][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1405.009355][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1405.009355][ T253] netlink_rcv_skb+0x130/0x360 [ 1405.009355][ T253] netlink_unicast+0x449/0x710 [ 1405.009355][ T253] netlink_sendmsg+0x723/0xbe0 [ 1405.009355][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1405.009355][ T253] ___sys_sendmsg+0xee/0x170 [ 1405.009355][ T253] __sys_sendmsg+0xcd/0x170 [ 1405.009355][ T253] do_syscall_64+0xc6/0x1e0 [ 1405.009355][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1405.009355][ T253] [ 1405.011587][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1405.011587][ T253] netdev_get_by_index+0x5e/0x80 [ 1405.011587][ T253] fib6_nh_init+0x3d8/0x1580 [ 1405.011587][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1405.011587][ T253] ip6_route_add+0x1c/0x140 [ 1405.011587][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1405.011587][ T253] addrconf_add_dev+0xe2/0x170 [ 1405.011587][ T253] inet6_addr_add+0x12f/0xa40 [ 1405.011587][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1405.011587][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1405.011587][ T253] netlink_rcv_skb+0x130/0x360 [ 1405.011587][ T253] netlink_unicast+0x449/0x710 [ 1405.011587][ T253] netlink_sendmsg+0x723/0xbe0 [ 1405.011587][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1405.011587][ T253] ___sys_sendmsg+0xee/0x170 [ 1405.011587][ T253] __sys_sendmsg+0xcd/0x170 [ 1405.011587][ T253] do_syscall_64+0xc6/0x1e0 [ 1405.011587][ T253] [ 1405.013832][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1405.013832][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1405.013832][ T253] ipv6_find_idev+0x102/0x170 [ 1405.013832][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1405.013832][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1405.013832][ T253] netlink_rcv_skb+0x130/0x360 [ 1405.013832][ T253] netlink_unicast+0x449/0x710 [ 1405.013832][ T253] netlink_sendmsg+0x723/0xbe0 [ 1405.013832][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1405.013832][ T253] ___sys_sendmsg+0xee/0x170 [ 1405.013832][ T253] __sys_sendmsg+0xcd/0x170 [ 1405.013832][ T253] do_syscall_64+0xc6/0x1e0 [ 1405.013832][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1405.013832][ T253] [ 1405.015554][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1405.015554][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1405.015554][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1405.015554][ T253] ipv6_find_idev+0x102/0x170 [ 1405.015554][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1405.015554][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1405.015554][ T253] netlink_rcv_skb+0x130/0x360 [ 1405.015554][ T253] netlink_unicast+0x449/0x710 [ 1405.015554][ T253] netlink_sendmsg+0x723/0xbe0 [ 1405.015554][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1405.015554][ T253] ___sys_sendmsg+0xee/0x170 [ 1405.015554][ T253] __sys_sendmsg+0xcd/0x170 [ 1405.015554][ T253] do_syscall_64+0xc6/0x1e0 [ 1405.015554][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1405.015554][ T253] [ 1415.266280][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1415.266702][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1415.266702][ T253] dst_init+0x84/0x4a0 [ 1415.266702][ T253] dst_alloc+0x97/0x150 [ 1415.266702][ T253] ip6_dst_alloc+0x23/0x90 [ 1415.266702][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1415.266702][ T253] ip6_pol_route+0x56f/0x840 [ 1415.266702][ T253] fib6_rule_lookup+0x334/0x630 [ 1415.266702][ T253] ip6_route_output_flags+0x259/0x480 [ 1415.266702][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1415.266702][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1415.266702][ T253] netlink_rcv_skb+0x130/0x360 [ 1415.266702][ T253] netlink_unicast+0x449/0x710 [ 1415.266702][ T253] netlink_sendmsg+0x723/0xbe0 [ 1415.266702][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1415.266702][ T253] ___sys_sendmsg+0xee/0x170 [ 1415.266702][ T253] __sys_sendmsg+0xcd/0x170 [ 1415.266702][ T253] do_syscall_64+0xc6/0x1e0 [ 1415.266702][ T253] [ 1415.268892][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1415.268892][ T253] netdev_get_by_index+0x5e/0x80 [ 1415.268892][ T253] fib6_nh_init+0x3d8/0x1580 [ 1415.268892][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1415.268892][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1415.268892][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1415.268892][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1415.268892][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1415.268892][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1415.268892][ T253] addrconf_dad_begin+0x310/0x670 [ 1415.268892][ T253] addrconf_dad_work+0x10b/0xab0 [ 1415.268892][ T253] process_one_work+0x84d/0x18a0 [ 1415.268892][ T253] worker_thread+0x587/0xd30 [ 1415.268892][ T253] kthread+0x28a/0x350 [ 1415.268892][ T253] ret_from_fork+0x31/0x70 [ 1415.268892][ T253] ret_from_fork_asm+0x1a/0x30 [ 1415.268892][ T253] [ 1415.271032][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1415.271032][ T253] netdev_get_by_index+0x5e/0x80 [ 1415.271032][ T253] fib6_nh_init+0x3d8/0x1580 [ 1415.271032][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1415.271032][ T253] ip6_route_add+0x1c/0x140 [ 1415.271032][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1415.271032][ T253] inet6_addr_add+0x4f8/0xa40 [ 1415.271032][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1415.271032][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1415.271032][ T253] netlink_rcv_skb+0x130/0x360 [ 1415.271032][ T253] netlink_unicast+0x449/0x710 [ 1415.271032][ T253] netlink_sendmsg+0x723/0xbe0 [ 1415.271032][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1415.271032][ T253] ___sys_sendmsg+0xee/0x170 [ 1415.271032][ T253] __sys_sendmsg+0xcd/0x170 [ 1415.271032][ T253] do_syscall_64+0xc6/0x1e0 [ 1415.271032][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1415.271032][ T253] [ 1415.273282][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1415.273282][ T253] netdev_get_by_index+0x5e/0x80 [ 1415.273282][ T253] fib6_nh_init+0x3d8/0x1580 [ 1415.273282][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1415.273282][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1415.273282][ T253] ipv6_add_addr+0x411/0x2000 [ 1415.273282][ T253] inet6_addr_add+0x30e/0xa40 [ 1415.273282][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1415.273282][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1415.273282][ T253] netlink_rcv_skb+0x130/0x360 [ 1415.273282][ T253] netlink_unicast+0x449/0x710 [ 1415.273282][ T253] netlink_sendmsg+0x723/0xbe0 [ 1415.273282][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1415.273282][ T253] ___sys_sendmsg+0xee/0x170 [ 1415.273282][ T253] __sys_sendmsg+0xcd/0x170 [ 1415.273282][ T253] do_syscall_64+0xc6/0x1e0 [ 1415.273282][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1415.273282][ T253] [ 1415.275515][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1415.275515][ T253] netdev_get_by_index+0x5e/0x80 [ 1415.275515][ T253] fib6_nh_init+0x3d8/0x1580 [ 1415.275515][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1415.275515][ T253] ip6_route_add+0x1c/0x140 [ 1415.275515][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1415.275515][ T253] addrconf_add_dev+0xe2/0x170 [ 1415.275515][ T253] inet6_addr_add+0x12f/0xa40 [ 1415.275515][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1415.275515][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1415.275515][ T253] netlink_rcv_skb+0x130/0x360 [ 1415.275515][ T253] netlink_unicast+0x449/0x710 [ 1415.275515][ T253] netlink_sendmsg+0x723/0xbe0 [ 1415.275515][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1415.275515][ T253] ___sys_sendmsg+0xee/0x170 [ 1415.275515][ T253] __sys_sendmsg+0xcd/0x170 [ 1415.275515][ T253] do_syscall_64+0xc6/0x1e0 [ 1415.275515][ T253] [ 1415.277718][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1415.277718][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1415.277718][ T253] ipv6_find_idev+0x102/0x170 [ 1415.277718][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1415.277718][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1415.277718][ T253] netlink_rcv_skb+0x130/0x360 [ 1415.277718][ T253] netlink_unicast+0x449/0x710 [ 1415.277718][ T253] netlink_sendmsg+0x723/0xbe0 [ 1415.277718][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1415.277718][ T253] ___sys_sendmsg+0xee/0x170 [ 1415.277718][ T253] __sys_sendmsg+0xcd/0x170 [ 1415.277718][ T253] do_syscall_64+0xc6/0x1e0 [ 1415.277718][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1415.277718][ T253] [ 1415.279437][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1415.279437][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1415.279437][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1415.279437][ T253] ipv6_find_idev+0x102/0x170 [ 1415.279437][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1415.279437][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1415.279437][ T253] netlink_rcv_skb+0x130/0x360 [ 1415.279437][ T253] netlink_unicast+0x449/0x710 [ 1415.279437][ T253] netlink_sendmsg+0x723/0xbe0 [ 1415.279437][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1415.279437][ T253] ___sys_sendmsg+0xee/0x170 [ 1415.279437][ T253] __sys_sendmsg+0xcd/0x170 [ 1415.279437][ T253] do_syscall_64+0xc6/0x1e0 [ 1415.279437][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1415.279437][ T253] [ 1425.530302][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1425.530797][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1425.530797][ T253] dst_init+0x84/0x4a0 [ 1425.530797][ T253] dst_alloc+0x97/0x150 [ 1425.530797][ T253] ip6_dst_alloc+0x23/0x90 [ 1425.530797][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1425.530797][ T253] ip6_pol_route+0x56f/0x840 [ 1425.530797][ T253] fib6_rule_lookup+0x334/0x630 [ 1425.530797][ T253] ip6_route_output_flags+0x259/0x480 [ 1425.530797][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1425.530797][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1425.530797][ T253] netlink_rcv_skb+0x130/0x360 [ 1425.530797][ T253] netlink_unicast+0x449/0x710 [ 1425.530797][ T253] netlink_sendmsg+0x723/0xbe0 [ 1425.530797][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1425.530797][ T253] ___sys_sendmsg+0xee/0x170 [ 1425.530797][ T253] __sys_sendmsg+0xcd/0x170 [ 1425.530797][ T253] do_syscall_64+0xc6/0x1e0 [ 1425.530797][ T253] [ 1425.533021][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1425.533021][ T253] netdev_get_by_index+0x5e/0x80 [ 1425.533021][ T253] fib6_nh_init+0x3d8/0x1580 [ 1425.533021][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1425.533021][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1425.533021][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1425.533021][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1425.533021][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1425.533021][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1425.533021][ T253] addrconf_dad_begin+0x310/0x670 [ 1425.533021][ T253] addrconf_dad_work+0x10b/0xab0 [ 1425.533021][ T253] process_one_work+0x84d/0x18a0 [ 1425.533021][ T253] worker_thread+0x587/0xd30 [ 1425.533021][ T253] kthread+0x28a/0x350 [ 1425.533021][ T253] ret_from_fork+0x31/0x70 [ 1425.533021][ T253] ret_from_fork_asm+0x1a/0x30 [ 1425.533021][ T253] [ 1425.535188][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1425.535188][ T253] netdev_get_by_index+0x5e/0x80 [ 1425.535188][ T253] fib6_nh_init+0x3d8/0x1580 [ 1425.535188][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1425.535188][ T253] ip6_route_add+0x1c/0x140 [ 1425.535188][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1425.535188][ T253] inet6_addr_add+0x4f8/0xa40 [ 1425.535188][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1425.535188][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1425.535188][ T253] netlink_rcv_skb+0x130/0x360 [ 1425.535188][ T253] netlink_unicast+0x449/0x710 [ 1425.535188][ T253] netlink_sendmsg+0x723/0xbe0 [ 1425.535188][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1425.535188][ T253] ___sys_sendmsg+0xee/0x170 [ 1425.535188][ T253] __sys_sendmsg+0xcd/0x170 [ 1425.535188][ T253] do_syscall_64+0xc6/0x1e0 [ 1425.535188][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1425.535188][ T253] [ 1425.537429][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1425.537429][ T253] netdev_get_by_index+0x5e/0x80 [ 1425.537429][ T253] fib6_nh_init+0x3d8/0x1580 [ 1425.537429][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1425.537429][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1425.537429][ T253] ipv6_add_addr+0x411/0x2000 [ 1425.537429][ T253] inet6_addr_add+0x30e/0xa40 [ 1425.537429][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1425.537429][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1425.537429][ T253] netlink_rcv_skb+0x130/0x360 [ 1425.537429][ T253] netlink_unicast+0x449/0x710 [ 1425.537429][ T253] netlink_sendmsg+0x723/0xbe0 [ 1425.537429][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1425.537429][ T253] ___sys_sendmsg+0xee/0x170 [ 1425.537429][ T253] __sys_sendmsg+0xcd/0x170 [ 1425.537429][ T253] do_syscall_64+0xc6/0x1e0 [ 1425.537429][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1425.537429][ T253] [ 1425.539677][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1425.539677][ T253] netdev_get_by_index+0x5e/0x80 [ 1425.539677][ T253] fib6_nh_init+0x3d8/0x1580 [ 1425.539677][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1425.539677][ T253] ip6_route_add+0x1c/0x140 [ 1425.539677][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1425.539677][ T253] addrconf_add_dev+0xe2/0x170 [ 1425.539677][ T253] inet6_addr_add+0x12f/0xa40 [ 1425.539677][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1425.539677][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1425.539677][ T253] netlink_rcv_skb+0x130/0x360 [ 1425.539677][ T253] netlink_unicast+0x449/0x710 [ 1425.539677][ T253] netlink_sendmsg+0x723/0xbe0 [ 1425.539677][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1425.539677][ T253] ___sys_sendmsg+0xee/0x170 [ 1425.539677][ T253] __sys_sendmsg+0xcd/0x170 [ 1425.539677][ T253] do_syscall_64+0xc6/0x1e0 [ 1425.539677][ T253] [ 1425.541874][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1425.541874][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1425.541874][ T253] ipv6_find_idev+0x102/0x170 [ 1425.541874][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1425.541874][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1425.541874][ T253] netlink_rcv_skb+0x130/0x360 [ 1425.541874][ T253] netlink_unicast+0x449/0x710 [ 1425.541874][ T253] netlink_sendmsg+0x723/0xbe0 [ 1425.541874][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1425.541874][ T253] ___sys_sendmsg+0xee/0x170 [ 1425.541874][ T253] __sys_sendmsg+0xcd/0x170 [ 1425.541874][ T253] do_syscall_64+0xc6/0x1e0 [ 1425.541874][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1425.541874][ T253] [ 1425.543606][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1425.543606][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1425.543606][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1425.543606][ T253] ipv6_find_idev+0x102/0x170 [ 1425.543606][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1425.543606][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1425.543606][ T253] netlink_rcv_skb+0x130/0x360 [ 1425.543606][ T253] netlink_unicast+0x449/0x710 [ 1425.543606][ T253] netlink_sendmsg+0x723/0xbe0 [ 1425.543606][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1425.543606][ T253] ___sys_sendmsg+0xee/0x170 [ 1425.543606][ T253] __sys_sendmsg+0xcd/0x170 [ 1425.543606][ T253] do_syscall_64+0xc6/0x1e0 [ 1425.543606][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1425.543606][ T253] [ 1435.762290][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1435.762783][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1435.762783][ T253] dst_init+0x84/0x4a0 [ 1435.762783][ T253] dst_alloc+0x97/0x150 [ 1435.762783][ T253] ip6_dst_alloc+0x23/0x90 [ 1435.762783][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1435.762783][ T253] ip6_pol_route+0x56f/0x840 [ 1435.762783][ T253] fib6_rule_lookup+0x334/0x630 [ 1435.762783][ T253] ip6_route_output_flags+0x259/0x480 [ 1435.762783][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1435.762783][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1435.762783][ T253] netlink_rcv_skb+0x130/0x360 [ 1435.762783][ T253] netlink_unicast+0x449/0x710 [ 1435.762783][ T253] netlink_sendmsg+0x723/0xbe0 [ 1435.762783][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1435.762783][ T253] ___sys_sendmsg+0xee/0x170 [ 1435.762783][ T253] __sys_sendmsg+0xcd/0x170 [ 1435.762783][ T253] do_syscall_64+0xc6/0x1e0 [ 1435.762783][ T253] [ 1435.765033][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1435.765033][ T253] netdev_get_by_index+0x5e/0x80 [ 1435.765033][ T253] fib6_nh_init+0x3d8/0x1580 [ 1435.765033][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1435.765033][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1435.765033][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1435.765033][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1435.765033][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1435.765033][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1435.765033][ T253] addrconf_dad_begin+0x310/0x670 [ 1435.765033][ T253] addrconf_dad_work+0x10b/0xab0 [ 1435.765033][ T253] process_one_work+0x84d/0x18a0 [ 1435.765033][ T253] worker_thread+0x587/0xd30 [ 1435.765033][ T253] kthread+0x28a/0x350 [ 1435.765033][ T253] ret_from_fork+0x31/0x70 [ 1435.765033][ T253] ret_from_fork_asm+0x1a/0x30 [ 1435.765033][ T253] [ 1435.767741][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1435.767741][ T253] netdev_get_by_index+0x5e/0x80 [ 1435.767741][ T253] fib6_nh_init+0x3d8/0x1580 [ 1435.767741][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1435.767741][ T253] ip6_route_add+0x1c/0x140 [ 1435.767741][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1435.767741][ T253] inet6_addr_add+0x4f8/0xa40 [ 1435.767741][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1435.767741][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1435.767741][ T253] netlink_rcv_skb+0x130/0x360 [ 1435.767741][ T253] netlink_unicast+0x449/0x710 [ 1435.767741][ T253] netlink_sendmsg+0x723/0xbe0 [ 1435.767741][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1435.767741][ T253] ___sys_sendmsg+0xee/0x170 [ 1435.767741][ T253] __sys_sendmsg+0xcd/0x170 [ 1435.767741][ T253] do_syscall_64+0xc6/0x1e0 [ 1435.767741][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1435.767741][ T253] [ 1435.770148][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1435.770148][ T253] netdev_get_by_index+0x5e/0x80 [ 1435.770148][ T253] fib6_nh_init+0x3d8/0x1580 [ 1435.770148][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1435.770148][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1435.770148][ T253] ipv6_add_addr+0x411/0x2000 [ 1435.770148][ T253] inet6_addr_add+0x30e/0xa40 [ 1435.770148][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1435.770148][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1435.770148][ T253] netlink_rcv_skb+0x130/0x360 [ 1435.770148][ T253] netlink_unicast+0x449/0x710 [ 1435.770148][ T253] netlink_sendmsg+0x723/0xbe0 [ 1435.770148][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1435.770148][ T253] ___sys_sendmsg+0xee/0x170 [ 1435.770148][ T253] __sys_sendmsg+0xcd/0x170 [ 1435.770148][ T253] do_syscall_64+0xc6/0x1e0 [ 1435.770148][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1435.770148][ T253] [ 1435.772461][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1435.772461][ T253] netdev_get_by_index+0x5e/0x80 [ 1435.772461][ T253] fib6_nh_init+0x3d8/0x1580 [ 1435.772461][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1435.772461][ T253] ip6_route_add+0x1c/0x140 [ 1435.772461][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1435.772461][ T253] addrconf_add_dev+0xe2/0x170 [ 1435.772461][ T253] inet6_addr_add+0x12f/0xa40 [ 1435.772461][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1435.772461][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1435.772461][ T253] netlink_rcv_skb+0x130/0x360 [ 1435.772461][ T253] netlink_unicast+0x449/0x710 [ 1435.772461][ T253] netlink_sendmsg+0x723/0xbe0 [ 1435.772461][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1435.772461][ T253] ___sys_sendmsg+0xee/0x170 [ 1435.772461][ T253] __sys_sendmsg+0xcd/0x170 [ 1435.772461][ T253] do_syscall_64+0xc6/0x1e0 [ 1435.772461][ T253] [ 1435.774702][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1435.774702][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1435.774702][ T253] ipv6_find_idev+0x102/0x170 [ 1435.774702][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1435.774702][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1435.774702][ T253] netlink_rcv_skb+0x130/0x360 [ 1435.774702][ T253] netlink_unicast+0x449/0x710 [ 1435.774702][ T253] netlink_sendmsg+0x723/0xbe0 [ 1435.774702][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1435.774702][ T253] ___sys_sendmsg+0xee/0x170 [ 1435.774702][ T253] __sys_sendmsg+0xcd/0x170 [ 1435.774702][ T253] do_syscall_64+0xc6/0x1e0 [ 1435.774702][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1435.774702][ T253] [ 1435.776444][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1435.776444][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1435.776444][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1435.776444][ T253] ipv6_find_idev+0x102/0x170 [ 1435.776444][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1435.776444][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1435.776444][ T253] netlink_rcv_skb+0x130/0x360 [ 1435.776444][ T253] netlink_unicast+0x449/0x710 [ 1435.776444][ T253] netlink_sendmsg+0x723/0xbe0 [ 1435.776444][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1435.776444][ T253] ___sys_sendmsg+0xee/0x170 [ 1435.776444][ T253] __sys_sendmsg+0xcd/0x170 [ 1435.776444][ T253] do_syscall_64+0xc6/0x1e0 [ 1435.776444][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1435.776444][ T253] [ 1445.922272][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1445.922788][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1445.922788][ T253] dst_init+0x84/0x4a0 [ 1445.922788][ T253] dst_alloc+0x97/0x150 [ 1445.922788][ T253] ip6_dst_alloc+0x23/0x90 [ 1445.922788][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1445.922788][ T253] ip6_pol_route+0x56f/0x840 [ 1445.922788][ T253] fib6_rule_lookup+0x334/0x630 [ 1445.922788][ T253] ip6_route_output_flags+0x259/0x480 [ 1445.922788][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1445.922788][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1445.922788][ T253] netlink_rcv_skb+0x130/0x360 [ 1445.922788][ T253] netlink_unicast+0x449/0x710 [ 1445.922788][ T253] netlink_sendmsg+0x723/0xbe0 [ 1445.922788][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1445.922788][ T253] ___sys_sendmsg+0xee/0x170 [ 1445.922788][ T253] __sys_sendmsg+0xcd/0x170 [ 1445.922788][ T253] do_syscall_64+0xc6/0x1e0 [ 1445.922788][ T253] [ 1445.925029][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1445.925029][ T253] netdev_get_by_index+0x5e/0x80 [ 1445.925029][ T253] fib6_nh_init+0x3d8/0x1580 [ 1445.925029][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1445.925029][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1445.925029][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1445.925029][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1445.925029][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1445.925029][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1445.925029][ T253] addrconf_dad_begin+0x310/0x670 [ 1445.925029][ T253] addrconf_dad_work+0x10b/0xab0 [ 1445.925029][ T253] process_one_work+0x84d/0x18a0 [ 1445.925029][ T253] worker_thread+0x587/0xd30 [ 1445.925029][ T253] kthread+0x28a/0x350 [ 1445.925029][ T253] ret_from_fork+0x31/0x70 [ 1445.925029][ T253] ret_from_fork_asm+0x1a/0x30 [ 1445.925029][ T253] [ 1445.927211][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1445.927211][ T253] netdev_get_by_index+0x5e/0x80 [ 1445.927211][ T253] fib6_nh_init+0x3d8/0x1580 [ 1445.927211][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1445.927211][ T253] ip6_route_add+0x1c/0x140 [ 1445.927211][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1445.927211][ T253] inet6_addr_add+0x4f8/0xa40 [ 1445.927211][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1445.927211][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1445.927211][ T253] netlink_rcv_skb+0x130/0x360 [ 1445.927211][ T253] netlink_unicast+0x449/0x710 [ 1445.927211][ T253] netlink_sendmsg+0x723/0xbe0 [ 1445.927211][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1445.927211][ T253] ___sys_sendmsg+0xee/0x170 [ 1445.927211][ T253] __sys_sendmsg+0xcd/0x170 [ 1445.927211][ T253] do_syscall_64+0xc6/0x1e0 [ 1445.927211][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1445.927211][ T253] [ 1445.929478][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1445.929478][ T253] netdev_get_by_index+0x5e/0x80 [ 1445.929478][ T253] fib6_nh_init+0x3d8/0x1580 [ 1445.929478][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1445.929478][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1445.929478][ T253] ipv6_add_addr+0x411/0x2000 [ 1445.929478][ T253] inet6_addr_add+0x30e/0xa40 [ 1445.929478][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1445.929478][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1445.929478][ T253] netlink_rcv_skb+0x130/0x360 [ 1445.929478][ T253] netlink_unicast+0x449/0x710 [ 1445.929478][ T253] netlink_sendmsg+0x723/0xbe0 [ 1445.929478][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1445.929478][ T253] ___sys_sendmsg+0xee/0x170 [ 1445.929478][ T253] __sys_sendmsg+0xcd/0x170 [ 1445.929478][ T253] do_syscall_64+0xc6/0x1e0 [ 1445.929478][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1445.929478][ T253] [ 1445.931756][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1445.931756][ T253] netdev_get_by_index+0x5e/0x80 [ 1445.931756][ T253] fib6_nh_init+0x3d8/0x1580 [ 1445.931756][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1445.931756][ T253] ip6_route_add+0x1c/0x140 [ 1445.931756][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1445.931756][ T253] addrconf_add_dev+0xe2/0x170 [ 1445.931756][ T253] inet6_addr_add+0x12f/0xa40 [ 1445.931756][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1445.931756][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1445.931756][ T253] netlink_rcv_skb+0x130/0x360 [ 1445.931756][ T253] netlink_unicast+0x449/0x710 [ 1445.931756][ T253] netlink_sendmsg+0x723/0xbe0 [ 1445.931756][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1445.931756][ T253] ___sys_sendmsg+0xee/0x170 [ 1445.931756][ T253] __sys_sendmsg+0xcd/0x170 [ 1445.931756][ T253] do_syscall_64+0xc6/0x1e0 [ 1445.931756][ T253] [ 1445.934014][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1445.934014][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1445.934014][ T253] ipv6_find_idev+0x102/0x170 [ 1445.934014][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1445.934014][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1445.934014][ T253] netlink_rcv_skb+0x130/0x360 [ 1445.934014][ T253] netlink_unicast+0x449/0x710 [ 1445.934014][ T253] netlink_sendmsg+0x723/0xbe0 [ 1445.934014][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1445.934014][ T253] ___sys_sendmsg+0xee/0x170 [ 1445.934014][ T253] __sys_sendmsg+0xcd/0x170 [ 1445.934014][ T253] do_syscall_64+0xc6/0x1e0 [ 1445.934014][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1445.934014][ T253] [ 1445.935776][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1445.935776][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1445.935776][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1445.935776][ T253] ipv6_find_idev+0x102/0x170 [ 1445.935776][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1445.935776][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1445.935776][ T253] netlink_rcv_skb+0x130/0x360 [ 1445.935776][ T253] netlink_unicast+0x449/0x710 [ 1445.935776][ T253] netlink_sendmsg+0x723/0xbe0 [ 1445.935776][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1445.935776][ T253] ___sys_sendmsg+0xee/0x170 [ 1445.935776][ T253] __sys_sendmsg+0xcd/0x170 [ 1445.935776][ T253] do_syscall_64+0xc6/0x1e0 [ 1445.935776][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1445.935776][ T253] [ 1456.178286][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1456.178771][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1456.178771][ T253] dst_init+0x84/0x4a0 [ 1456.178771][ T253] dst_alloc+0x97/0x150 [ 1456.178771][ T253] ip6_dst_alloc+0x23/0x90 [ 1456.178771][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1456.178771][ T253] ip6_pol_route+0x56f/0x840 [ 1456.178771][ T253] fib6_rule_lookup+0x334/0x630 [ 1456.178771][ T253] ip6_route_output_flags+0x259/0x480 [ 1456.178771][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1456.178771][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1456.178771][ T253] netlink_rcv_skb+0x130/0x360 [ 1456.178771][ T253] netlink_unicast+0x449/0x710 [ 1456.178771][ T253] netlink_sendmsg+0x723/0xbe0 [ 1456.178771][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1456.178771][ T253] ___sys_sendmsg+0xee/0x170 [ 1456.178771][ T253] __sys_sendmsg+0xcd/0x170 [ 1456.178771][ T253] do_syscall_64+0xc6/0x1e0 [ 1456.178771][ T253] [ 1456.180970][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1456.180970][ T253] netdev_get_by_index+0x5e/0x80 [ 1456.180970][ T253] fib6_nh_init+0x3d8/0x1580 [ 1456.180970][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1456.180970][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1456.180970][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1456.180970][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1456.180970][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1456.180970][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1456.180970][ T253] addrconf_dad_begin+0x310/0x670 [ 1456.180970][ T253] addrconf_dad_work+0x10b/0xab0 [ 1456.180970][ T253] process_one_work+0x84d/0x18a0 [ 1456.180970][ T253] worker_thread+0x587/0xd30 [ 1456.180970][ T253] kthread+0x28a/0x350 [ 1456.180970][ T253] ret_from_fork+0x31/0x70 [ 1456.180970][ T253] ret_from_fork_asm+0x1a/0x30 [ 1456.180970][ T253] [ 1456.183160][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1456.183160][ T253] netdev_get_by_index+0x5e/0x80 [ 1456.183160][ T253] fib6_nh_init+0x3d8/0x1580 [ 1456.183160][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1456.183160][ T253] ip6_route_add+0x1c/0x140 [ 1456.183160][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1456.183160][ T253] inet6_addr_add+0x4f8/0xa40 [ 1456.183160][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1456.183160][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1456.183160][ T253] netlink_rcv_skb+0x130/0x360 [ 1456.183160][ T253] netlink_unicast+0x449/0x710 [ 1456.183160][ T253] netlink_sendmsg+0x723/0xbe0 [ 1456.183160][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1456.183160][ T253] ___sys_sendmsg+0xee/0x170 [ 1456.183160][ T253] __sys_sendmsg+0xcd/0x170 [ 1456.183160][ T253] do_syscall_64+0xc6/0x1e0 [ 1456.183160][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1456.183160][ T253] [ 1456.185398][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1456.185398][ T253] netdev_get_by_index+0x5e/0x80 [ 1456.185398][ T253] fib6_nh_init+0x3d8/0x1580 [ 1456.185398][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1456.185398][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1456.185398][ T253] ipv6_add_addr+0x411/0x2000 [ 1456.185398][ T253] inet6_addr_add+0x30e/0xa40 [ 1456.185398][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1456.185398][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1456.185398][ T253] netlink_rcv_skb+0x130/0x360 [ 1456.185398][ T253] netlink_unicast+0x449/0x710 [ 1456.185398][ T253] netlink_sendmsg+0x723/0xbe0 [ 1456.185398][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1456.185398][ T253] ___sys_sendmsg+0xee/0x170 [ 1456.185398][ T253] __sys_sendmsg+0xcd/0x170 [ 1456.185398][ T253] do_syscall_64+0xc6/0x1e0 [ 1456.185398][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1456.185398][ T253] [ 1456.187636][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1456.187636][ T253] netdev_get_by_index+0x5e/0x80 [ 1456.187636][ T253] fib6_nh_init+0x3d8/0x1580 [ 1456.187636][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1456.187636][ T253] ip6_route_add+0x1c/0x140 [ 1456.187636][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1456.187636][ T253] addrconf_add_dev+0xe2/0x170 [ 1456.187636][ T253] inet6_addr_add+0x12f/0xa40 [ 1456.187636][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1456.187636][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1456.187636][ T253] netlink_rcv_skb+0x130/0x360 [ 1456.187636][ T253] netlink_unicast+0x449/0x710 [ 1456.187636][ T253] netlink_sendmsg+0x723/0xbe0 [ 1456.187636][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1456.187636][ T253] ___sys_sendmsg+0xee/0x170 [ 1456.187636][ T253] __sys_sendmsg+0xcd/0x170 [ 1456.187636][ T253] do_syscall_64+0xc6/0x1e0 [ 1456.187636][ T253] [ 1456.189856][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1456.189856][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1456.189856][ T253] ipv6_find_idev+0x102/0x170 [ 1456.189856][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1456.189856][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1456.189856][ T253] netlink_rcv_skb+0x130/0x360 [ 1456.189856][ T253] netlink_unicast+0x449/0x710 [ 1456.189856][ T253] netlink_sendmsg+0x723/0xbe0 [ 1456.189856][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1456.189856][ T253] ___sys_sendmsg+0xee/0x170 [ 1456.189856][ T253] __sys_sendmsg+0xcd/0x170 [ 1456.189856][ T253] do_syscall_64+0xc6/0x1e0 [ 1456.189856][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1456.189856][ T253] [ 1456.191574][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1456.191574][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1456.191574][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1456.191574][ T253] ipv6_find_idev+0x102/0x170 [ 1456.191574][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1456.191574][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1456.191574][ T253] netlink_rcv_skb+0x130/0x360 [ 1456.191574][ T253] netlink_unicast+0x449/0x710 [ 1456.191574][ T253] netlink_sendmsg+0x723/0xbe0 [ 1456.191574][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1456.191574][ T253] ___sys_sendmsg+0xee/0x170 [ 1456.191574][ T253] __sys_sendmsg+0xcd/0x170 [ 1456.191574][ T253] do_syscall_64+0xc6/0x1e0 [ 1456.191574][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1456.191574][ T253] [ 1466.434294][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1466.434776][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1466.434776][ T253] dst_init+0x84/0x4a0 [ 1466.434776][ T253] dst_alloc+0x97/0x150 [ 1466.434776][ T253] ip6_dst_alloc+0x23/0x90 [ 1466.434776][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1466.434776][ T253] ip6_pol_route+0x56f/0x840 [ 1466.434776][ T253] fib6_rule_lookup+0x334/0x630 [ 1466.434776][ T253] ip6_route_output_flags+0x259/0x480 [ 1466.434776][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1466.434776][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1466.434776][ T253] netlink_rcv_skb+0x130/0x360 [ 1466.434776][ T253] netlink_unicast+0x449/0x710 [ 1466.434776][ T253] netlink_sendmsg+0x723/0xbe0 [ 1466.434776][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1466.434776][ T253] ___sys_sendmsg+0xee/0x170 [ 1466.434776][ T253] __sys_sendmsg+0xcd/0x170 [ 1466.434776][ T253] do_syscall_64+0xc6/0x1e0 [ 1466.434776][ T253] [ 1466.436999][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1466.436999][ T253] netdev_get_by_index+0x5e/0x80 [ 1466.436999][ T253] fib6_nh_init+0x3d8/0x1580 [ 1466.436999][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1466.436999][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1466.436999][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1466.436999][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1466.436999][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1466.436999][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1466.436999][ T253] addrconf_dad_begin+0x310/0x670 [ 1466.436999][ T253] addrconf_dad_work+0x10b/0xab0 [ 1466.436999][ T253] process_one_work+0x84d/0x18a0 [ 1466.436999][ T253] worker_thread+0x587/0xd30 [ 1466.436999][ T253] kthread+0x28a/0x350 [ 1466.436999][ T253] ret_from_fork+0x31/0x70 [ 1466.436999][ T253] ret_from_fork_asm+0x1a/0x30 [ 1466.436999][ T253] [ 1466.439148][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1466.439148][ T253] netdev_get_by_index+0x5e/0x80 [ 1466.439148][ T253] fib6_nh_init+0x3d8/0x1580 [ 1466.439148][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1466.439148][ T253] ip6_route_add+0x1c/0x140 [ 1466.439148][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1466.439148][ T253] inet6_addr_add+0x4f8/0xa40 [ 1466.439148][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1466.439148][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1466.439148][ T253] netlink_rcv_skb+0x130/0x360 [ 1466.439148][ T253] netlink_unicast+0x449/0x710 [ 1466.439148][ T253] netlink_sendmsg+0x723/0xbe0 [ 1466.439148][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1466.439148][ T253] ___sys_sendmsg+0xee/0x170 [ 1466.439148][ T253] __sys_sendmsg+0xcd/0x170 [ 1466.439148][ T253] do_syscall_64+0xc6/0x1e0 [ 1466.439148][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1466.439148][ T253] [ 1466.441402][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1466.441402][ T253] netdev_get_by_index+0x5e/0x80 [ 1466.441402][ T253] fib6_nh_init+0x3d8/0x1580 [ 1466.441402][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1466.441402][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1466.441402][ T253] ipv6_add_addr+0x411/0x2000 [ 1466.441402][ T253] inet6_addr_add+0x30e/0xa40 [ 1466.441402][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1466.441402][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1466.441402][ T253] netlink_rcv_skb+0x130/0x360 [ 1466.441402][ T253] netlink_unicast+0x449/0x710 [ 1466.441402][ T253] netlink_sendmsg+0x723/0xbe0 [ 1466.441402][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1466.441402][ T253] ___sys_sendmsg+0xee/0x170 [ 1466.441402][ T253] __sys_sendmsg+0xcd/0x170 [ 1466.441402][ T253] do_syscall_64+0xc6/0x1e0 [ 1466.441402][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1466.441402][ T253] [ 1466.444095][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1466.444095][ T253] netdev_get_by_index+0x5e/0x80 [ 1466.444095][ T253] fib6_nh_init+0x3d8/0x1580 [ 1466.444095][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1466.444095][ T253] ip6_route_add+0x1c/0x140 [ 1466.444095][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1466.444095][ T253] addrconf_add_dev+0xe2/0x170 [ 1466.444095][ T253] inet6_addr_add+0x12f/0xa40 [ 1466.444095][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1466.444095][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1466.444095][ T253] netlink_rcv_skb+0x130/0x360 [ 1466.444095][ T253] netlink_unicast+0x449/0x710 [ 1466.444095][ T253] netlink_sendmsg+0x723/0xbe0 [ 1466.444095][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1466.444095][ T253] ___sys_sendmsg+0xee/0x170 [ 1466.444095][ T253] __sys_sendmsg+0xcd/0x170 [ 1466.444095][ T253] do_syscall_64+0xc6/0x1e0 [ 1466.444095][ T253] [ 1466.448190][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1466.448190][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1466.448190][ T253] ipv6_find_idev+0x102/0x170 [ 1466.448190][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1466.448190][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1466.448190][ T253] netlink_rcv_skb+0x130/0x360 [ 1466.448190][ T253] netlink_unicast+0x449/0x710 [ 1466.448190][ T253] netlink_sendmsg+0x723/0xbe0 [ 1466.448190][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1466.448190][ T253] ___sys_sendmsg+0xee/0x170 [ 1466.448190][ T253] __sys_sendmsg+0xcd/0x170 [ 1466.448190][ T253] do_syscall_64+0xc6/0x1e0 [ 1466.448190][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1466.448190][ T253] [ 1466.451464][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1466.451464][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1466.451464][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1466.451464][ T253] ipv6_find_idev+0x102/0x170 [ 1466.451464][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1466.451464][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1466.451464][ T253] netlink_rcv_skb+0x130/0x360 [ 1466.451464][ T253] netlink_unicast+0x449/0x710 [ 1466.451464][ T253] netlink_sendmsg+0x723/0xbe0 [ 1466.451464][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1466.451464][ T253] ___sys_sendmsg+0xee/0x170 [ 1466.451464][ T253] __sys_sendmsg+0xcd/0x170 [ 1466.451464][ T253] do_syscall_64+0xc6/0x1e0 [ 1466.451464][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1466.451464][ T253] [ 1476.690275][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1476.690760][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1476.690760][ T253] dst_init+0x84/0x4a0 [ 1476.690760][ T253] dst_alloc+0x97/0x150 [ 1476.690760][ T253] ip6_dst_alloc+0x23/0x90 [ 1476.690760][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1476.690760][ T253] ip6_pol_route+0x56f/0x840 [ 1476.690760][ T253] fib6_rule_lookup+0x334/0x630 [ 1476.690760][ T253] ip6_route_output_flags+0x259/0x480 [ 1476.690760][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1476.690760][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1476.690760][ T253] netlink_rcv_skb+0x130/0x360 [ 1476.690760][ T253] netlink_unicast+0x449/0x710 [ 1476.690760][ T253] netlink_sendmsg+0x723/0xbe0 [ 1476.690760][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1476.690760][ T253] ___sys_sendmsg+0xee/0x170 [ 1476.690760][ T253] __sys_sendmsg+0xcd/0x170 [ 1476.690760][ T253] do_syscall_64+0xc6/0x1e0 [ 1476.690760][ T253] [ 1476.692969][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1476.692969][ T253] netdev_get_by_index+0x5e/0x80 [ 1476.692969][ T253] fib6_nh_init+0x3d8/0x1580 [ 1476.692969][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1476.692969][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1476.692969][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1476.692969][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1476.692969][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1476.692969][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1476.692969][ T253] addrconf_dad_begin+0x310/0x670 [ 1476.692969][ T253] addrconf_dad_work+0x10b/0xab0 [ 1476.692969][ T253] process_one_work+0x84d/0x18a0 [ 1476.692969][ T253] worker_thread+0x587/0xd30 [ 1476.692969][ T253] kthread+0x28a/0x350 [ 1476.692969][ T253] ret_from_fork+0x31/0x70 [ 1476.692969][ T253] ret_from_fork_asm+0x1a/0x30 [ 1476.692969][ T253] [ 1476.695114][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1476.695114][ T253] netdev_get_by_index+0x5e/0x80 [ 1476.695114][ T253] fib6_nh_init+0x3d8/0x1580 [ 1476.695114][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1476.695114][ T253] ip6_route_add+0x1c/0x140 [ 1476.695114][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1476.695114][ T253] inet6_addr_add+0x4f8/0xa40 [ 1476.695114][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1476.695114][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1476.695114][ T253] netlink_rcv_skb+0x130/0x360 [ 1476.695114][ T253] netlink_unicast+0x449/0x710 [ 1476.695114][ T253] netlink_sendmsg+0x723/0xbe0 [ 1476.695114][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1476.695114][ T253] ___sys_sendmsg+0xee/0x170 [ 1476.695114][ T253] __sys_sendmsg+0xcd/0x170 [ 1476.695114][ T253] do_syscall_64+0xc6/0x1e0 [ 1476.695114][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1476.695114][ T253] [ 1476.698712][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1476.698712][ T253] netdev_get_by_index+0x5e/0x80 [ 1476.698712][ T253] fib6_nh_init+0x3d8/0x1580 [ 1476.698712][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1476.698712][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1476.698712][ T253] ipv6_add_addr+0x411/0x2000 [ 1476.698712][ T253] inet6_addr_add+0x30e/0xa40 [ 1476.698712][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1476.698712][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1476.698712][ T253] netlink_rcv_skb+0x130/0x360 [ 1476.698712][ T253] netlink_unicast+0x449/0x710 [ 1476.698712][ T253] netlink_sendmsg+0x723/0xbe0 [ 1476.698712][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1476.698712][ T253] ___sys_sendmsg+0xee/0x170 [ 1476.698712][ T253] __sys_sendmsg+0xcd/0x170 [ 1476.698712][ T253] do_syscall_64+0xc6/0x1e0 [ 1476.698712][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1476.698712][ T253] [ 1476.702989][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1476.702989][ T253] netdev_get_by_index+0x5e/0x80 [ 1476.702989][ T253] fib6_nh_init+0x3d8/0x1580 [ 1476.702989][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1476.702989][ T253] ip6_route_add+0x1c/0x140 [ 1476.702989][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1476.702989][ T253] addrconf_add_dev+0xe2/0x170 [ 1476.702989][ T253] inet6_addr_add+0x12f/0xa40 [ 1476.702989][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1476.702989][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1476.702989][ T253] netlink_rcv_skb+0x130/0x360 [ 1476.702989][ T253] netlink_unicast+0x449/0x710 [ 1476.702989][ T253] netlink_sendmsg+0x723/0xbe0 [ 1476.702989][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1476.702989][ T253] ___sys_sendmsg+0xee/0x170 [ 1476.702989][ T253] __sys_sendmsg+0xcd/0x170 [ 1476.702989][ T253] do_syscall_64+0xc6/0x1e0 [ 1476.702989][ T253] [ 1476.707181][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1476.707181][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1476.707181][ T253] ipv6_find_idev+0x102/0x170 [ 1476.707181][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1476.707181][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1476.707181][ T253] netlink_rcv_skb+0x130/0x360 [ 1476.707181][ T253] netlink_unicast+0x449/0x710 [ 1476.707181][ T253] netlink_sendmsg+0x723/0xbe0 [ 1476.707181][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1476.707181][ T253] ___sys_sendmsg+0xee/0x170 [ 1476.707181][ T253] __sys_sendmsg+0xcd/0x170 [ 1476.707181][ T253] do_syscall_64+0xc6/0x1e0 [ 1476.707181][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1476.707181][ T253] [ 1476.710457][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1476.710457][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1476.710457][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1476.710457][ T253] ipv6_find_idev+0x102/0x170 [ 1476.710457][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1476.710457][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1476.710457][ T253] netlink_rcv_skb+0x130/0x360 [ 1476.710457][ T253] netlink_unicast+0x449/0x710 [ 1476.710457][ T253] netlink_sendmsg+0x723/0xbe0 [ 1476.710457][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1476.710457][ T253] ___sys_sendmsg+0xee/0x170 [ 1476.710457][ T253] __sys_sendmsg+0xcd/0x170 [ 1476.710457][ T253] do_syscall_64+0xc6/0x1e0 [ 1476.710457][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1476.710457][ T253] [ 1486.850306][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1486.850783][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1486.850783][ T253] dst_init+0x84/0x4a0 [ 1486.850783][ T253] dst_alloc+0x97/0x150 [ 1486.850783][ T253] ip6_dst_alloc+0x23/0x90 [ 1486.850783][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1486.850783][ T253] ip6_pol_route+0x56f/0x840 [ 1486.850783][ T253] fib6_rule_lookup+0x334/0x630 [ 1486.850783][ T253] ip6_route_output_flags+0x259/0x480 [ 1486.850783][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1486.850783][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1486.850783][ T253] netlink_rcv_skb+0x130/0x360 [ 1486.850783][ T253] netlink_unicast+0x449/0x710 [ 1486.850783][ T253] netlink_sendmsg+0x723/0xbe0 [ 1486.850783][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1486.850783][ T253] ___sys_sendmsg+0xee/0x170 [ 1486.850783][ T253] __sys_sendmsg+0xcd/0x170 [ 1486.850783][ T253] do_syscall_64+0xc6/0x1e0 [ 1486.850783][ T253] [ 1486.853017][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1486.853017][ T253] netdev_get_by_index+0x5e/0x80 [ 1486.853017][ T253] fib6_nh_init+0x3d8/0x1580 [ 1486.853017][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1486.853017][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1486.853017][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1486.853017][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1486.853017][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1486.853017][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1486.853017][ T253] addrconf_dad_begin+0x310/0x670 [ 1486.853017][ T253] addrconf_dad_work+0x10b/0xab0 [ 1486.853017][ T253] process_one_work+0x84d/0x18a0 [ 1486.853017][ T253] worker_thread+0x587/0xd30 [ 1486.853017][ T253] kthread+0x28a/0x350 [ 1486.853017][ T253] ret_from_fork+0x31/0x70 [ 1486.853017][ T253] ret_from_fork_asm+0x1a/0x30 [ 1486.853017][ T253] [ 1486.856778][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1486.856778][ T253] netdev_get_by_index+0x5e/0x80 [ 1486.856778][ T253] fib6_nh_init+0x3d8/0x1580 [ 1486.856778][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1486.856778][ T253] ip6_route_add+0x1c/0x140 [ 1486.856778][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1486.856778][ T253] inet6_addr_add+0x4f8/0xa40 [ 1486.856778][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1486.856778][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1486.856778][ T253] netlink_rcv_skb+0x130/0x360 [ 1486.856778][ T253] netlink_unicast+0x449/0x710 [ 1486.856778][ T253] netlink_sendmsg+0x723/0xbe0 [ 1486.856778][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1486.856778][ T253] ___sys_sendmsg+0xee/0x170 [ 1486.856778][ T253] __sys_sendmsg+0xcd/0x170 [ 1486.856778][ T253] do_syscall_64+0xc6/0x1e0 [ 1486.856778][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1486.856778][ T253] [ 1486.861052][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1486.861052][ T253] netdev_get_by_index+0x5e/0x80 [ 1486.861052][ T253] fib6_nh_init+0x3d8/0x1580 [ 1486.861052][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1486.861052][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1486.861052][ T253] ipv6_add_addr+0x411/0x2000 [ 1486.861052][ T253] inet6_addr_add+0x30e/0xa40 [ 1486.861052][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1486.861052][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1486.861052][ T253] netlink_rcv_skb+0x130/0x360 [ 1486.861052][ T253] netlink_unicast+0x449/0x710 [ 1486.861052][ T253] netlink_sendmsg+0x723/0xbe0 [ 1486.861052][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1486.861052][ T253] ___sys_sendmsg+0xee/0x170 [ 1486.861052][ T253] __sys_sendmsg+0xcd/0x170 [ 1486.861052][ T253] do_syscall_64+0xc6/0x1e0 [ 1486.861052][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1486.861052][ T253] [ 1486.865348][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1486.865348][ T253] netdev_get_by_index+0x5e/0x80 [ 1486.865348][ T253] fib6_nh_init+0x3d8/0x1580 [ 1486.865348][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1486.865348][ T253] ip6_route_add+0x1c/0x140 [ 1486.865348][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1486.865348][ T253] addrconf_add_dev+0xe2/0x170 [ 1486.865348][ T253] inet6_addr_add+0x12f/0xa40 [ 1486.865348][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1486.865348][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1486.865348][ T253] netlink_rcv_skb+0x130/0x360 [ 1486.865348][ T253] netlink_unicast+0x449/0x710 [ 1486.865348][ T253] netlink_sendmsg+0x723/0xbe0 [ 1486.865348][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1486.865348][ T253] ___sys_sendmsg+0xee/0x170 [ 1486.865348][ T253] __sys_sendmsg+0xcd/0x170 [ 1486.865348][ T253] do_syscall_64+0xc6/0x1e0 [ 1486.865348][ T253] [ 1486.869507][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1486.869507][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1486.869507][ T253] ipv6_find_idev+0x102/0x170 [ 1486.869507][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1486.869507][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1486.869507][ T253] netlink_rcv_skb+0x130/0x360 [ 1486.869507][ T253] netlink_unicast+0x449/0x710 [ 1486.869507][ T253] netlink_sendmsg+0x723/0xbe0 [ 1486.869507][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1486.869507][ T253] ___sys_sendmsg+0xee/0x170 [ 1486.869507][ T253] __sys_sendmsg+0xcd/0x170 [ 1486.869507][ T253] do_syscall_64+0xc6/0x1e0 [ 1486.869507][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1486.869507][ T253] [ 1486.872912][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1486.872912][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1486.872912][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1486.872912][ T253] ipv6_find_idev+0x102/0x170 [ 1486.872912][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1486.872912][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1486.872912][ T253] netlink_rcv_skb+0x130/0x360 [ 1486.872912][ T253] netlink_unicast+0x449/0x710 [ 1486.872912][ T253] netlink_sendmsg+0x723/0xbe0 [ 1486.872912][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1486.872912][ T253] ___sys_sendmsg+0xee/0x170 [ 1486.872912][ T253] __sys_sendmsg+0xcd/0x170 [ 1486.872912][ T253] do_syscall_64+0xc6/0x1e0 [ 1486.872912][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1486.872912][ T253] [ 1497.042301][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1497.042717][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1497.042717][ T253] dst_init+0x84/0x4a0 [ 1497.042717][ T253] dst_alloc+0x97/0x150 [ 1497.042717][ T253] ip6_dst_alloc+0x23/0x90 [ 1497.042717][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1497.042717][ T253] ip6_pol_route+0x56f/0x840 [ 1497.042717][ T253] fib6_rule_lookup+0x334/0x630 [ 1497.042717][ T253] ip6_route_output_flags+0x259/0x480 [ 1497.042717][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1497.042717][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1497.042717][ T253] netlink_rcv_skb+0x130/0x360 [ 1497.042717][ T253] netlink_unicast+0x449/0x710 [ 1497.042717][ T253] netlink_sendmsg+0x723/0xbe0 [ 1497.042717][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1497.042717][ T253] ___sys_sendmsg+0xee/0x170 [ 1497.042717][ T253] __sys_sendmsg+0xcd/0x170 [ 1497.042717][ T253] do_syscall_64+0xc6/0x1e0 [ 1497.042717][ T253] [ 1497.044930][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1497.044930][ T253] netdev_get_by_index+0x5e/0x80 [ 1497.044930][ T253] fib6_nh_init+0x3d8/0x1580 [ 1497.044930][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1497.044930][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1497.044930][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1497.044930][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1497.044930][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1497.044930][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1497.044930][ T253] addrconf_dad_begin+0x310/0x670 [ 1497.044930][ T253] addrconf_dad_work+0x10b/0xab0 [ 1497.044930][ T253] process_one_work+0x84d/0x18a0 [ 1497.044930][ T253] worker_thread+0x587/0xd30 [ 1497.044930][ T253] kthread+0x28a/0x350 [ 1497.044930][ T253] ret_from_fork+0x31/0x70 [ 1497.044930][ T253] ret_from_fork_asm+0x1a/0x30 [ 1497.044930][ T253] [ 1497.047179][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1497.047179][ T253] netdev_get_by_index+0x5e/0x80 [ 1497.047179][ T253] fib6_nh_init+0x3d8/0x1580 [ 1497.047179][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1497.047179][ T253] ip6_route_add+0x1c/0x140 [ 1497.047179][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1497.047179][ T253] inet6_addr_add+0x4f8/0xa40 [ 1497.047179][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1497.047179][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1497.047179][ T253] netlink_rcv_skb+0x130/0x360 [ 1497.047179][ T253] netlink_unicast+0x449/0x710 [ 1497.047179][ T253] netlink_sendmsg+0x723/0xbe0 [ 1497.047179][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1497.047179][ T253] ___sys_sendmsg+0xee/0x170 [ 1497.047179][ T253] __sys_sendmsg+0xcd/0x170 [ 1497.047179][ T253] do_syscall_64+0xc6/0x1e0 [ 1497.047179][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1497.047179][ T253] [ 1497.049417][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1497.049417][ T253] netdev_get_by_index+0x5e/0x80 [ 1497.049417][ T253] fib6_nh_init+0x3d8/0x1580 [ 1497.049417][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1497.049417][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1497.049417][ T253] ipv6_add_addr+0x411/0x2000 [ 1497.049417][ T253] inet6_addr_add+0x30e/0xa40 [ 1497.049417][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1497.049417][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1497.049417][ T253] netlink_rcv_skb+0x130/0x360 [ 1497.049417][ T253] netlink_unicast+0x449/0x710 [ 1497.049417][ T253] netlink_sendmsg+0x723/0xbe0 [ 1497.049417][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1497.049417][ T253] ___sys_sendmsg+0xee/0x170 [ 1497.049417][ T253] __sys_sendmsg+0xcd/0x170 [ 1497.049417][ T253] do_syscall_64+0xc6/0x1e0 [ 1497.049417][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1497.049417][ T253] [ 1497.051656][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1497.051656][ T253] netdev_get_by_index+0x5e/0x80 [ 1497.051656][ T253] fib6_nh_init+0x3d8/0x1580 [ 1497.051656][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1497.051656][ T253] ip6_route_add+0x1c/0x140 [ 1497.051656][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1497.051656][ T253] addrconf_add_dev+0xe2/0x170 [ 1497.051656][ T253] inet6_addr_add+0x12f/0xa40 [ 1497.051656][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1497.051656][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1497.051656][ T253] netlink_rcv_skb+0x130/0x360 [ 1497.051656][ T253] netlink_unicast+0x449/0x710 [ 1497.051656][ T253] netlink_sendmsg+0x723/0xbe0 [ 1497.051656][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1497.051656][ T253] ___sys_sendmsg+0xee/0x170 [ 1497.051656][ T253] __sys_sendmsg+0xcd/0x170 [ 1497.051656][ T253] do_syscall_64+0xc6/0x1e0 [ 1497.051656][ T253] [ 1497.054342][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1497.054342][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1497.054342][ T253] ipv6_find_idev+0x102/0x170 [ 1497.054342][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1497.054342][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1497.054342][ T253] netlink_rcv_skb+0x130/0x360 [ 1497.054342][ T253] netlink_unicast+0x449/0x710 [ 1497.054342][ T253] netlink_sendmsg+0x723/0xbe0 [ 1497.054342][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1497.054342][ T253] ___sys_sendmsg+0xee/0x170 [ 1497.054342][ T253] __sys_sendmsg+0xcd/0x170 [ 1497.054342][ T253] do_syscall_64+0xc6/0x1e0 [ 1497.054342][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1497.054342][ T253] [ 1497.056065][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1497.056065][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1497.056065][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1497.056065][ T253] ipv6_find_idev+0x102/0x170 [ 1497.056065][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1497.056065][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1497.056065][ T253] netlink_rcv_skb+0x130/0x360 [ 1497.056065][ T253] netlink_unicast+0x449/0x710 [ 1497.056065][ T253] netlink_sendmsg+0x723/0xbe0 [ 1497.056065][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1497.056065][ T253] ___sys_sendmsg+0xee/0x170 [ 1497.056065][ T253] __sys_sendmsg+0xcd/0x170 [ 1497.056065][ T253] do_syscall_64+0xc6/0x1e0 [ 1497.056065][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1497.056065][ T253] [ 1507.298374][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1507.298848][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1507.298848][ T253] dst_init+0x84/0x4a0 [ 1507.298848][ T253] dst_alloc+0x97/0x150 [ 1507.298848][ T253] ip6_dst_alloc+0x23/0x90 [ 1507.298848][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1507.298848][ T253] ip6_pol_route+0x56f/0x840 [ 1507.298848][ T253] fib6_rule_lookup+0x334/0x630 [ 1507.298848][ T253] ip6_route_output_flags+0x259/0x480 [ 1507.298848][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1507.298848][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1507.298848][ T253] netlink_rcv_skb+0x130/0x360 [ 1507.298848][ T253] netlink_unicast+0x449/0x710 [ 1507.298848][ T253] netlink_sendmsg+0x723/0xbe0 [ 1507.298848][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1507.298848][ T253] ___sys_sendmsg+0xee/0x170 [ 1507.298848][ T253] __sys_sendmsg+0xcd/0x170 [ 1507.298848][ T253] do_syscall_64+0xc6/0x1e0 [ 1507.298848][ T253] [ 1507.301239][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1507.301239][ T253] netdev_get_by_index+0x5e/0x80 [ 1507.301239][ T253] fib6_nh_init+0x3d8/0x1580 [ 1507.301239][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1507.301239][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1507.301239][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1507.301239][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1507.301239][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1507.301239][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1507.301239][ T253] addrconf_dad_begin+0x310/0x670 [ 1507.301239][ T253] addrconf_dad_work+0x10b/0xab0 [ 1507.301239][ T253] process_one_work+0x84d/0x18a0 [ 1507.301239][ T253] worker_thread+0x587/0xd30 [ 1507.301239][ T253] kthread+0x28a/0x350 [ 1507.301239][ T253] ret_from_fork+0x31/0x70 [ 1507.301239][ T253] ret_from_fork_asm+0x1a/0x30 [ 1507.301239][ T253] [ 1507.303594][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1507.303594][ T253] netdev_get_by_index+0x5e/0x80 [ 1507.303594][ T253] fib6_nh_init+0x3d8/0x1580 [ 1507.303594][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1507.303594][ T253] ip6_route_add+0x1c/0x140 [ 1507.303594][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1507.303594][ T253] inet6_addr_add+0x4f8/0xa40 [ 1507.303594][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1507.303594][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1507.303594][ T253] netlink_rcv_skb+0x130/0x360 [ 1507.303594][ T253] netlink_unicast+0x449/0x710 [ 1507.303594][ T253] netlink_sendmsg+0x723/0xbe0 [ 1507.303594][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1507.303594][ T253] ___sys_sendmsg+0xee/0x170 [ 1507.303594][ T253] __sys_sendmsg+0xcd/0x170 [ 1507.303594][ T253] do_syscall_64+0xc6/0x1e0 [ 1507.303594][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1507.303594][ T253] [ 1507.306046][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1507.306046][ T253] netdev_get_by_index+0x5e/0x80 [ 1507.306046][ T253] fib6_nh_init+0x3d8/0x1580 [ 1507.306046][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1507.306046][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1507.306046][ T253] ipv6_add_addr+0x411/0x2000 [ 1507.306046][ T253] inet6_addr_add+0x30e/0xa40 [ 1507.306046][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1507.306046][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1507.306046][ T253] netlink_rcv_skb+0x130/0x360 [ 1507.306046][ T253] netlink_unicast+0x449/0x710 [ 1507.306046][ T253] netlink_sendmsg+0x723/0xbe0 [ 1507.306046][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1507.306046][ T253] ___sys_sendmsg+0xee/0x170 [ 1507.306046][ T253] __sys_sendmsg+0xcd/0x170 [ 1507.306046][ T253] do_syscall_64+0xc6/0x1e0 [ 1507.306046][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1507.306046][ T253] [ 1507.308458][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1507.308458][ T253] netdev_get_by_index+0x5e/0x80 [ 1507.308458][ T253] fib6_nh_init+0x3d8/0x1580 [ 1507.308458][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1507.308458][ T253] ip6_route_add+0x1c/0x140 [ 1507.308458][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1507.308458][ T253] addrconf_add_dev+0xe2/0x170 [ 1507.308458][ T253] inet6_addr_add+0x12f/0xa40 [ 1507.308458][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1507.308458][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1507.308458][ T253] netlink_rcv_skb+0x130/0x360 [ 1507.308458][ T253] netlink_unicast+0x449/0x710 [ 1507.308458][ T253] netlink_sendmsg+0x723/0xbe0 [ 1507.308458][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1507.308458][ T253] ___sys_sendmsg+0xee/0x170 [ 1507.308458][ T253] __sys_sendmsg+0xcd/0x170 [ 1507.308458][ T253] do_syscall_64+0xc6/0x1e0 [ 1507.308458][ T253] [ 1507.310812][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1507.310812][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1507.310812][ T253] ipv6_find_idev+0x102/0x170 [ 1507.310812][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1507.310812][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1507.310812][ T253] netlink_rcv_skb+0x130/0x360 [ 1507.310812][ T253] netlink_unicast+0x449/0x710 [ 1507.310812][ T253] netlink_sendmsg+0x723/0xbe0 [ 1507.310812][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1507.310812][ T253] ___sys_sendmsg+0xee/0x170 [ 1507.310812][ T253] __sys_sendmsg+0xcd/0x170 [ 1507.310812][ T253] do_syscall_64+0xc6/0x1e0 [ 1507.310812][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1507.310812][ T253] [ 1507.312691][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1507.312691][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1507.312691][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1507.312691][ T253] ipv6_find_idev+0x102/0x170 [ 1507.312691][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1507.312691][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1507.312691][ T253] netlink_rcv_skb+0x130/0x360 [ 1507.312691][ T253] netlink_unicast+0x449/0x710 [ 1507.312691][ T253] netlink_sendmsg+0x723/0xbe0 [ 1507.312691][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1507.312691][ T253] ___sys_sendmsg+0xee/0x170 [ 1507.312691][ T253] __sys_sendmsg+0xcd/0x170 [ 1507.312691][ T253] do_syscall_64+0xc6/0x1e0 [ 1507.312691][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1507.312691][ T253] [ 1517.554323][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1517.554814][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1517.554814][ T253] dst_init+0x84/0x4a0 [ 1517.554814][ T253] dst_alloc+0x97/0x150 [ 1517.554814][ T253] ip6_dst_alloc+0x23/0x90 [ 1517.554814][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1517.554814][ T253] ip6_pol_route+0x56f/0x840 [ 1517.554814][ T253] fib6_rule_lookup+0x334/0x630 [ 1517.554814][ T253] ip6_route_output_flags+0x259/0x480 [ 1517.554814][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1517.554814][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1517.554814][ T253] netlink_rcv_skb+0x130/0x360 [ 1517.554814][ T253] netlink_unicast+0x449/0x710 [ 1517.554814][ T253] netlink_sendmsg+0x723/0xbe0 [ 1517.554814][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1517.554814][ T253] ___sys_sendmsg+0xee/0x170 [ 1517.554814][ T253] __sys_sendmsg+0xcd/0x170 [ 1517.554814][ T253] do_syscall_64+0xc6/0x1e0 [ 1517.554814][ T253] [ 1517.557008][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1517.557008][ T253] netdev_get_by_index+0x5e/0x80 [ 1517.557008][ T253] fib6_nh_init+0x3d8/0x1580 [ 1517.557008][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1517.557008][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1517.557008][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1517.557008][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1517.557008][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1517.557008][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1517.557008][ T253] addrconf_dad_begin+0x310/0x670 [ 1517.557008][ T253] addrconf_dad_work+0x10b/0xab0 [ 1517.557008][ T253] process_one_work+0x84d/0x18a0 [ 1517.557008][ T253] worker_thread+0x587/0xd30 [ 1517.557008][ T253] kthread+0x28a/0x350 [ 1517.557008][ T253] ret_from_fork+0x31/0x70 [ 1517.557008][ T253] ret_from_fork_asm+0x1a/0x30 [ 1517.557008][ T253] [ 1517.559156][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1517.559156][ T253] netdev_get_by_index+0x5e/0x80 [ 1517.559156][ T253] fib6_nh_init+0x3d8/0x1580 [ 1517.559156][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1517.559156][ T253] ip6_route_add+0x1c/0x140 [ 1517.559156][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1517.559156][ T253] inet6_addr_add+0x4f8/0xa40 [ 1517.559156][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1517.559156][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1517.559156][ T253] netlink_rcv_skb+0x130/0x360 [ 1517.559156][ T253] netlink_unicast+0x449/0x710 [ 1517.559156][ T253] netlink_sendmsg+0x723/0xbe0 [ 1517.559156][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1517.559156][ T253] ___sys_sendmsg+0xee/0x170 [ 1517.559156][ T253] __sys_sendmsg+0xcd/0x170 [ 1517.559156][ T253] do_syscall_64+0xc6/0x1e0 [ 1517.559156][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1517.559156][ T253] [ 1517.561438][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1517.561438][ T253] netdev_get_by_index+0x5e/0x80 [ 1517.561438][ T253] fib6_nh_init+0x3d8/0x1580 [ 1517.561438][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1517.561438][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1517.561438][ T253] ipv6_add_addr+0x411/0x2000 [ 1517.561438][ T253] inet6_addr_add+0x30e/0xa40 [ 1517.561438][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1517.561438][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1517.561438][ T253] netlink_rcv_skb+0x130/0x360 [ 1517.561438][ T253] netlink_unicast+0x449/0x710 [ 1517.561438][ T253] netlink_sendmsg+0x723/0xbe0 [ 1517.561438][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1517.561438][ T253] ___sys_sendmsg+0xee/0x170 [ 1517.561438][ T253] __sys_sendmsg+0xcd/0x170 [ 1517.561438][ T253] do_syscall_64+0xc6/0x1e0 [ 1517.561438][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1517.561438][ T253] [ 1517.563711][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1517.563711][ T253] netdev_get_by_index+0x5e/0x80 [ 1517.563711][ T253] fib6_nh_init+0x3d8/0x1580 [ 1517.563711][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1517.563711][ T253] ip6_route_add+0x1c/0x140 [ 1517.563711][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1517.563711][ T253] addrconf_add_dev+0xe2/0x170 [ 1517.563711][ T253] inet6_addr_add+0x12f/0xa40 [ 1517.563711][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1517.563711][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1517.563711][ T253] netlink_rcv_skb+0x130/0x360 [ 1517.563711][ T253] netlink_unicast+0x449/0x710 [ 1517.563711][ T253] netlink_sendmsg+0x723/0xbe0 [ 1517.563711][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1517.563711][ T253] ___sys_sendmsg+0xee/0x170 [ 1517.563711][ T253] __sys_sendmsg+0xcd/0x170 [ 1517.563711][ T253] do_syscall_64+0xc6/0x1e0 [ 1517.563711][ T253] [ 1517.565910][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1517.565910][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1517.565910][ T253] ipv6_find_idev+0x102/0x170 [ 1517.565910][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1517.565910][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1517.565910][ T253] netlink_rcv_skb+0x130/0x360 [ 1517.565910][ T253] netlink_unicast+0x449/0x710 [ 1517.565910][ T253] netlink_sendmsg+0x723/0xbe0 [ 1517.565910][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1517.565910][ T253] ___sys_sendmsg+0xee/0x170 [ 1517.565910][ T253] __sys_sendmsg+0xcd/0x170 [ 1517.565910][ T253] do_syscall_64+0xc6/0x1e0 [ 1517.565910][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1517.565910][ T253] [ 1517.567637][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1517.567637][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1517.567637][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1517.567637][ T253] ipv6_find_idev+0x102/0x170 [ 1517.567637][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1517.567637][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1517.567637][ T253] netlink_rcv_skb+0x130/0x360 [ 1517.567637][ T253] netlink_unicast+0x449/0x710 [ 1517.567637][ T253] netlink_sendmsg+0x723/0xbe0 [ 1517.567637][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1517.567637][ T253] ___sys_sendmsg+0xee/0x170 [ 1517.567637][ T253] __sys_sendmsg+0xcd/0x170 [ 1517.567637][ T253] do_syscall_64+0xc6/0x1e0 [ 1517.567637][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1517.567637][ T253] [ 1527.810317][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1527.810796][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1527.810796][ T253] dst_init+0x84/0x4a0 [ 1527.810796][ T253] dst_alloc+0x97/0x150 [ 1527.810796][ T253] ip6_dst_alloc+0x23/0x90 [ 1527.810796][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1527.810796][ T253] ip6_pol_route+0x56f/0x840 [ 1527.810796][ T253] fib6_rule_lookup+0x334/0x630 [ 1527.810796][ T253] ip6_route_output_flags+0x259/0x480 [ 1527.810796][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1527.810796][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1527.810796][ T253] netlink_rcv_skb+0x130/0x360 [ 1527.810796][ T253] netlink_unicast+0x449/0x710 [ 1527.810796][ T253] netlink_sendmsg+0x723/0xbe0 [ 1527.810796][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1527.810796][ T253] ___sys_sendmsg+0xee/0x170 [ 1527.810796][ T253] __sys_sendmsg+0xcd/0x170 [ 1527.810796][ T253] do_syscall_64+0xc6/0x1e0 [ 1527.810796][ T253] [ 1527.813120][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1527.813120][ T253] netdev_get_by_index+0x5e/0x80 [ 1527.813120][ T253] fib6_nh_init+0x3d8/0x1580 [ 1527.813120][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1527.813120][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1527.813120][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1527.813120][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1527.813120][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1527.813120][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1527.813120][ T253] addrconf_dad_begin+0x310/0x670 [ 1527.813120][ T253] addrconf_dad_work+0x10b/0xab0 [ 1527.813120][ T253] process_one_work+0x84d/0x18a0 [ 1527.813120][ T253] worker_thread+0x587/0xd30 [ 1527.813120][ T253] kthread+0x28a/0x350 [ 1527.813120][ T253] ret_from_fork+0x31/0x70 [ 1527.813120][ T253] ret_from_fork_asm+0x1a/0x30 [ 1527.813120][ T253] [ 1527.815305][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1527.815305][ T253] netdev_get_by_index+0x5e/0x80 [ 1527.815305][ T253] fib6_nh_init+0x3d8/0x1580 [ 1527.815305][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1527.815305][ T253] ip6_route_add+0x1c/0x140 [ 1527.815305][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1527.815305][ T253] inet6_addr_add+0x4f8/0xa40 [ 1527.815305][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1527.815305][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1527.815305][ T253] netlink_rcv_skb+0x130/0x360 [ 1527.815305][ T253] netlink_unicast+0x449/0x710 [ 1527.815305][ T253] netlink_sendmsg+0x723/0xbe0 [ 1527.815305][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1527.815305][ T253] ___sys_sendmsg+0xee/0x170 [ 1527.815305][ T253] __sys_sendmsg+0xcd/0x170 [ 1527.815305][ T253] do_syscall_64+0xc6/0x1e0 [ 1527.815305][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1527.815305][ T253] [ 1527.817537][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1527.817537][ T253] netdev_get_by_index+0x5e/0x80 [ 1527.817537][ T253] fib6_nh_init+0x3d8/0x1580 [ 1527.817537][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1527.817537][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1527.817537][ T253] ipv6_add_addr+0x411/0x2000 [ 1527.817537][ T253] inet6_addr_add+0x30e/0xa40 [ 1527.817537][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1527.817537][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1527.817537][ T253] netlink_rcv_skb+0x130/0x360 [ 1527.817537][ T253] netlink_unicast+0x449/0x710 [ 1527.817537][ T253] netlink_sendmsg+0x723/0xbe0 [ 1527.817537][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1527.817537][ T253] ___sys_sendmsg+0xee/0x170 [ 1527.817537][ T253] __sys_sendmsg+0xcd/0x170 [ 1527.817537][ T253] do_syscall_64+0xc6/0x1e0 [ 1527.817537][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1527.817537][ T253] [ 1527.819769][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1527.819769][ T253] netdev_get_by_index+0x5e/0x80 [ 1527.819769][ T253] fib6_nh_init+0x3d8/0x1580 [ 1527.819769][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1527.819769][ T253] ip6_route_add+0x1c/0x140 [ 1527.819769][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1527.819769][ T253] addrconf_add_dev+0xe2/0x170 [ 1527.819769][ T253] inet6_addr_add+0x12f/0xa40 [ 1527.819769][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1527.819769][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1527.819769][ T253] netlink_rcv_skb+0x130/0x360 [ 1527.819769][ T253] netlink_unicast+0x449/0x710 [ 1527.819769][ T253] netlink_sendmsg+0x723/0xbe0 [ 1527.819769][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1527.819769][ T253] ___sys_sendmsg+0xee/0x170 [ 1527.819769][ T253] __sys_sendmsg+0xcd/0x170 [ 1527.819769][ T253] do_syscall_64+0xc6/0x1e0 [ 1527.819769][ T253] [ 1527.821964][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1527.821964][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1527.821964][ T253] ipv6_find_idev+0x102/0x170 [ 1527.821964][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1527.821964][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1527.821964][ T253] netlink_rcv_skb+0x130/0x360 [ 1527.821964][ T253] netlink_unicast+0x449/0x710 [ 1527.821964][ T253] netlink_sendmsg+0x723/0xbe0 [ 1527.821964][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1527.821964][ T253] ___sys_sendmsg+0xee/0x170 [ 1527.821964][ T253] __sys_sendmsg+0xcd/0x170 [ 1527.821964][ T253] do_syscall_64+0xc6/0x1e0 [ 1527.821964][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1527.821964][ T253] [ 1527.823689][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1527.823689][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1527.823689][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1527.823689][ T253] ipv6_find_idev+0x102/0x170 [ 1527.823689][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1527.823689][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1527.823689][ T253] netlink_rcv_skb+0x130/0x360 [ 1527.823689][ T253] netlink_unicast+0x449/0x710 [ 1527.823689][ T253] netlink_sendmsg+0x723/0xbe0 [ 1527.823689][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1527.823689][ T253] ___sys_sendmsg+0xee/0x170 [ 1527.823689][ T253] __sys_sendmsg+0xcd/0x170 [ 1527.823689][ T253] do_syscall_64+0xc6/0x1e0 [ 1527.823689][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1527.823689][ T253] [ 1538.066339][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1538.066828][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1538.066828][ T253] dst_init+0x84/0x4a0 [ 1538.066828][ T253] dst_alloc+0x97/0x150 [ 1538.066828][ T253] ip6_dst_alloc+0x23/0x90 [ 1538.066828][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1538.066828][ T253] ip6_pol_route+0x56f/0x840 [ 1538.066828][ T253] fib6_rule_lookup+0x334/0x630 [ 1538.066828][ T253] ip6_route_output_flags+0x259/0x480 [ 1538.066828][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1538.066828][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1538.066828][ T253] netlink_rcv_skb+0x130/0x360 [ 1538.066828][ T253] netlink_unicast+0x449/0x710 [ 1538.066828][ T253] netlink_sendmsg+0x723/0xbe0 [ 1538.066828][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1538.066828][ T253] ___sys_sendmsg+0xee/0x170 [ 1538.066828][ T253] __sys_sendmsg+0xcd/0x170 [ 1538.066828][ T253] do_syscall_64+0xc6/0x1e0 [ 1538.066828][ T253] [ 1538.069030][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1538.069030][ T253] netdev_get_by_index+0x5e/0x80 [ 1538.069030][ T253] fib6_nh_init+0x3d8/0x1580 [ 1538.069030][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1538.069030][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1538.069030][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1538.069030][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1538.069030][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1538.069030][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1538.069030][ T253] addrconf_dad_begin+0x310/0x670 [ 1538.069030][ T253] addrconf_dad_work+0x10b/0xab0 [ 1538.069030][ T253] process_one_work+0x84d/0x18a0 [ 1538.069030][ T253] worker_thread+0x587/0xd30 [ 1538.069030][ T253] kthread+0x28a/0x350 [ 1538.069030][ T253] ret_from_fork+0x31/0x70 [ 1538.069030][ T253] ret_from_fork_asm+0x1a/0x30 [ 1538.069030][ T253] [ 1538.072281][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1538.072281][ T253] netdev_get_by_index+0x5e/0x80 [ 1538.072281][ T253] fib6_nh_init+0x3d8/0x1580 [ 1538.072281][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1538.072281][ T253] ip6_route_add+0x1c/0x140 [ 1538.072281][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1538.072281][ T253] inet6_addr_add+0x4f8/0xa40 [ 1538.072281][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1538.072281][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1538.072281][ T253] netlink_rcv_skb+0x130/0x360 [ 1538.072281][ T253] netlink_unicast+0x449/0x710 [ 1538.072281][ T253] netlink_sendmsg+0x723/0xbe0 [ 1538.072281][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1538.072281][ T253] ___sys_sendmsg+0xee/0x170 [ 1538.072281][ T253] __sys_sendmsg+0xcd/0x170 [ 1538.072281][ T253] do_syscall_64+0xc6/0x1e0 [ 1538.072281][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1538.072281][ T253] [ 1538.075731][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1538.075731][ T253] netdev_get_by_index+0x5e/0x80 [ 1538.075731][ T253] fib6_nh_init+0x3d8/0x1580 [ 1538.075731][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1538.075731][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1538.075731][ T253] ipv6_add_addr+0x411/0x2000 [ 1538.075731][ T253] inet6_addr_add+0x30e/0xa40 [ 1538.075731][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1538.075731][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1538.075731][ T253] netlink_rcv_skb+0x130/0x360 [ 1538.075731][ T253] netlink_unicast+0x449/0x710 [ 1538.075731][ T253] netlink_sendmsg+0x723/0xbe0 [ 1538.075731][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1538.075731][ T253] ___sys_sendmsg+0xee/0x170 [ 1538.075731][ T253] __sys_sendmsg+0xcd/0x170 [ 1538.075731][ T253] do_syscall_64+0xc6/0x1e0 [ 1538.075731][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1538.075731][ T253] [ 1538.079140][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1538.079140][ T253] netdev_get_by_index+0x5e/0x80 [ 1538.079140][ T253] fib6_nh_init+0x3d8/0x1580 [ 1538.079140][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1538.079140][ T253] ip6_route_add+0x1c/0x140 [ 1538.079140][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1538.079140][ T253] addrconf_add_dev+0xe2/0x170 [ 1538.079140][ T253] inet6_addr_add+0x12f/0xa40 [ 1538.079140][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1538.079140][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1538.079140][ T253] netlink_rcv_skb+0x130/0x360 [ 1538.079140][ T253] netlink_unicast+0x449/0x710 [ 1538.079140][ T253] netlink_sendmsg+0x723/0xbe0 [ 1538.079140][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1538.079140][ T253] ___sys_sendmsg+0xee/0x170 [ 1538.079140][ T253] __sys_sendmsg+0xcd/0x170 [ 1538.079140][ T253] do_syscall_64+0xc6/0x1e0 [ 1538.079140][ T253] [ 1538.082525][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1538.082525][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1538.082525][ T253] ipv6_find_idev+0x102/0x170 [ 1538.082525][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1538.082525][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1538.082525][ T253] netlink_rcv_skb+0x130/0x360 [ 1538.082525][ T253] netlink_unicast+0x449/0x710 [ 1538.082525][ T253] netlink_sendmsg+0x723/0xbe0 [ 1538.082525][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1538.082525][ T253] ___sys_sendmsg+0xee/0x170 [ 1538.082525][ T253] __sys_sendmsg+0xcd/0x170 [ 1538.082525][ T253] do_syscall_64+0xc6/0x1e0 [ 1538.082525][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1538.082525][ T253] [ 1538.085157][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1538.085157][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1538.085157][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1538.085157][ T253] ipv6_find_idev+0x102/0x170 [ 1538.085157][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1538.085157][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1538.085157][ T253] netlink_rcv_skb+0x130/0x360 [ 1538.085157][ T253] netlink_unicast+0x449/0x710 [ 1538.085157][ T253] netlink_sendmsg+0x723/0xbe0 [ 1538.085157][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1538.085157][ T253] ___sys_sendmsg+0xee/0x170 [ 1538.085157][ T253] __sys_sendmsg+0xcd/0x170 [ 1538.085157][ T253] do_syscall_64+0xc6/0x1e0 [ 1538.085157][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1538.085157][ T253] [ 1548.130357][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1548.130911][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1548.130911][ T253] dst_init+0x84/0x4a0 [ 1548.130911][ T253] dst_alloc+0x97/0x150 [ 1548.130911][ T253] ip6_dst_alloc+0x23/0x90 [ 1548.130911][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1548.130911][ T253] ip6_pol_route+0x56f/0x840 [ 1548.130911][ T253] fib6_rule_lookup+0x334/0x630 [ 1548.130911][ T253] ip6_route_output_flags+0x259/0x480 [ 1548.130911][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1548.130911][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1548.130911][ T253] netlink_rcv_skb+0x130/0x360 [ 1548.130911][ T253] netlink_unicast+0x449/0x710 [ 1548.130911][ T253] netlink_sendmsg+0x723/0xbe0 [ 1548.130911][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1548.130911][ T253] ___sys_sendmsg+0xee/0x170 [ 1548.130911][ T253] __sys_sendmsg+0xcd/0x170 [ 1548.130911][ T253] do_syscall_64+0xc6/0x1e0 [ 1548.130911][ T253] [ 1548.133139][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1548.133139][ T253] netdev_get_by_index+0x5e/0x80 [ 1548.133139][ T253] fib6_nh_init+0x3d8/0x1580 [ 1548.133139][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1548.133139][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1548.133139][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1548.133139][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1548.133139][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1548.133139][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1548.133139][ T253] addrconf_dad_begin+0x310/0x670 [ 1548.133139][ T253] addrconf_dad_work+0x10b/0xab0 [ 1548.133139][ T253] process_one_work+0x84d/0x18a0 [ 1548.133139][ T253] worker_thread+0x587/0xd30 [ 1548.133139][ T253] kthread+0x28a/0x350 [ 1548.133139][ T253] ret_from_fork+0x31/0x70 [ 1548.133139][ T253] ret_from_fork_asm+0x1a/0x30 [ 1548.133139][ T253] [ 1548.135313][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1548.135313][ T253] netdev_get_by_index+0x5e/0x80 [ 1548.135313][ T253] fib6_nh_init+0x3d8/0x1580 [ 1548.135313][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1548.135313][ T253] ip6_route_add+0x1c/0x140 [ 1548.135313][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1548.135313][ T253] inet6_addr_add+0x4f8/0xa40 [ 1548.135313][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1548.135313][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1548.135313][ T253] netlink_rcv_skb+0x130/0x360 [ 1548.135313][ T253] netlink_unicast+0x449/0x710 [ 1548.135313][ T253] netlink_sendmsg+0x723/0xbe0 [ 1548.135313][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1548.135313][ T253] ___sys_sendmsg+0xee/0x170 [ 1548.135313][ T253] __sys_sendmsg+0xcd/0x170 [ 1548.135313][ T253] do_syscall_64+0xc6/0x1e0 [ 1548.135313][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1548.135313][ T253] [ 1548.137573][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1548.137573][ T253] netdev_get_by_index+0x5e/0x80 [ 1548.137573][ T253] fib6_nh_init+0x3d8/0x1580 [ 1548.137573][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1548.137573][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1548.137573][ T253] ipv6_add_addr+0x411/0x2000 [ 1548.137573][ T253] inet6_addr_add+0x30e/0xa40 [ 1548.137573][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1548.137573][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1548.137573][ T253] netlink_rcv_skb+0x130/0x360 [ 1548.137573][ T253] netlink_unicast+0x449/0x710 [ 1548.137573][ T253] netlink_sendmsg+0x723/0xbe0 [ 1548.137573][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1548.137573][ T253] ___sys_sendmsg+0xee/0x170 [ 1548.137573][ T253] __sys_sendmsg+0xcd/0x170 [ 1548.137573][ T253] do_syscall_64+0xc6/0x1e0 [ 1548.137573][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1548.137573][ T253] [ 1548.139841][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1548.139841][ T253] netdev_get_by_index+0x5e/0x80 [ 1548.139841][ T253] fib6_nh_init+0x3d8/0x1580 [ 1548.139841][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1548.139841][ T253] ip6_route_add+0x1c/0x140 [ 1548.139841][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1548.139841][ T253] addrconf_add_dev+0xe2/0x170 [ 1548.139841][ T253] inet6_addr_add+0x12f/0xa40 [ 1548.139841][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1548.139841][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1548.139841][ T253] netlink_rcv_skb+0x130/0x360 [ 1548.139841][ T253] netlink_unicast+0x449/0x710 [ 1548.139841][ T253] netlink_sendmsg+0x723/0xbe0 [ 1548.139841][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1548.139841][ T253] ___sys_sendmsg+0xee/0x170 [ 1548.139841][ T253] __sys_sendmsg+0xcd/0x170 [ 1548.139841][ T253] do_syscall_64+0xc6/0x1e0 [ 1548.139841][ T253] [ 1548.142086][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1548.142086][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1548.142086][ T253] ipv6_find_idev+0x102/0x170 [ 1548.142086][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1548.142086][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1548.142086][ T253] netlink_rcv_skb+0x130/0x360 [ 1548.142086][ T253] netlink_unicast+0x449/0x710 [ 1548.142086][ T253] netlink_sendmsg+0x723/0xbe0 [ 1548.142086][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1548.142086][ T253] ___sys_sendmsg+0xee/0x170 [ 1548.142086][ T253] __sys_sendmsg+0xcd/0x170 [ 1548.142086][ T253] do_syscall_64+0xc6/0x1e0 [ 1548.142086][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1548.142086][ T253] [ 1548.143827][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1548.143827][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1548.143827][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1548.143827][ T253] ipv6_find_idev+0x102/0x170 [ 1548.143827][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1548.143827][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1548.143827][ T253] netlink_rcv_skb+0x130/0x360 [ 1548.143827][ T253] netlink_unicast+0x449/0x710 [ 1548.143827][ T253] netlink_sendmsg+0x723/0xbe0 [ 1548.143827][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1548.143827][ T253] ___sys_sendmsg+0xee/0x170 [ 1548.143827][ T253] __sys_sendmsg+0xcd/0x170 [ 1548.143827][ T253] do_syscall_64+0xc6/0x1e0 [ 1548.143827][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1548.143827][ T253] [ 1558.386285][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1558.386736][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1558.386736][ T253] dst_init+0x84/0x4a0 [ 1558.386736][ T253] dst_alloc+0x97/0x150 [ 1558.386736][ T253] ip6_dst_alloc+0x23/0x90 [ 1558.386736][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1558.386736][ T253] ip6_pol_route+0x56f/0x840 [ 1558.386736][ T253] fib6_rule_lookup+0x334/0x630 [ 1558.386736][ T253] ip6_route_output_flags+0x259/0x480 [ 1558.386736][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1558.386736][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1558.386736][ T253] netlink_rcv_skb+0x130/0x360 [ 1558.386736][ T253] netlink_unicast+0x449/0x710 [ 1558.386736][ T253] netlink_sendmsg+0x723/0xbe0 [ 1558.386736][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1558.386736][ T253] ___sys_sendmsg+0xee/0x170 [ 1558.386736][ T253] __sys_sendmsg+0xcd/0x170 [ 1558.386736][ T253] do_syscall_64+0xc6/0x1e0 [ 1558.386736][ T253] [ 1558.388980][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1558.388980][ T253] netdev_get_by_index+0x5e/0x80 [ 1558.388980][ T253] fib6_nh_init+0x3d8/0x1580 [ 1558.388980][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1558.388980][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1558.388980][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1558.388980][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1558.388980][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1558.388980][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1558.388980][ T253] addrconf_dad_begin+0x310/0x670 [ 1558.388980][ T253] addrconf_dad_work+0x10b/0xab0 [ 1558.388980][ T253] process_one_work+0x84d/0x18a0 [ 1558.388980][ T253] worker_thread+0x587/0xd30 [ 1558.388980][ T253] kthread+0x28a/0x350 [ 1558.388980][ T253] ret_from_fork+0x31/0x70 [ 1558.388980][ T253] ret_from_fork_asm+0x1a/0x30 [ 1558.388980][ T253] [ 1558.391151][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1558.391151][ T253] netdev_get_by_index+0x5e/0x80 [ 1558.391151][ T253] fib6_nh_init+0x3d8/0x1580 [ 1558.391151][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1558.391151][ T253] ip6_route_add+0x1c/0x140 [ 1558.391151][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1558.391151][ T253] inet6_addr_add+0x4f8/0xa40 [ 1558.391151][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1558.391151][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1558.391151][ T253] netlink_rcv_skb+0x130/0x360 [ 1558.391151][ T253] netlink_unicast+0x449/0x710 [ 1558.391151][ T253] netlink_sendmsg+0x723/0xbe0 [ 1558.391151][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1558.391151][ T253] ___sys_sendmsg+0xee/0x170 [ 1558.391151][ T253] __sys_sendmsg+0xcd/0x170 [ 1558.391151][ T253] do_syscall_64+0xc6/0x1e0 [ 1558.391151][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1558.391151][ T253] [ 1558.393422][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1558.393422][ T253] netdev_get_by_index+0x5e/0x80 [ 1558.393422][ T253] fib6_nh_init+0x3d8/0x1580 [ 1558.393422][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1558.393422][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1558.393422][ T253] ipv6_add_addr+0x411/0x2000 [ 1558.393422][ T253] inet6_addr_add+0x30e/0xa40 [ 1558.393422][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1558.393422][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1558.393422][ T253] netlink_rcv_skb+0x130/0x360 [ 1558.393422][ T253] netlink_unicast+0x449/0x710 [ 1558.393422][ T253] netlink_sendmsg+0x723/0xbe0 [ 1558.393422][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1558.393422][ T253] ___sys_sendmsg+0xee/0x170 [ 1558.393422][ T253] __sys_sendmsg+0xcd/0x170 [ 1558.393422][ T253] do_syscall_64+0xc6/0x1e0 [ 1558.393422][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1558.393422][ T253] [ 1558.395666][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1558.395666][ T253] netdev_get_by_index+0x5e/0x80 [ 1558.395666][ T253] fib6_nh_init+0x3d8/0x1580 [ 1558.395666][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1558.395666][ T253] ip6_route_add+0x1c/0x140 [ 1558.395666][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1558.395666][ T253] addrconf_add_dev+0xe2/0x170 [ 1558.395666][ T253] inet6_addr_add+0x12f/0xa40 [ 1558.395666][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1558.395666][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1558.395666][ T253] netlink_rcv_skb+0x130/0x360 [ 1558.395666][ T253] netlink_unicast+0x449/0x710 [ 1558.395666][ T253] netlink_sendmsg+0x723/0xbe0 [ 1558.395666][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1558.395666][ T253] ___sys_sendmsg+0xee/0x170 [ 1558.395666][ T253] __sys_sendmsg+0xcd/0x170 [ 1558.395666][ T253] do_syscall_64+0xc6/0x1e0 [ 1558.395666][ T253] [ 1558.397898][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1558.397898][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1558.397898][ T253] ipv6_find_idev+0x102/0x170 [ 1558.397898][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1558.397898][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1558.397898][ T253] netlink_rcv_skb+0x130/0x360 [ 1558.397898][ T253] netlink_unicast+0x449/0x710 [ 1558.397898][ T253] netlink_sendmsg+0x723/0xbe0 [ 1558.397898][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1558.397898][ T253] ___sys_sendmsg+0xee/0x170 [ 1558.397898][ T253] __sys_sendmsg+0xcd/0x170 [ 1558.397898][ T253] do_syscall_64+0xc6/0x1e0 [ 1558.397898][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1558.397898][ T253] [ 1558.399648][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1558.399648][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1558.399648][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1558.399648][ T253] ipv6_find_idev+0x102/0x170 [ 1558.399648][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1558.399648][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1558.399648][ T253] netlink_rcv_skb+0x130/0x360 [ 1558.399648][ T253] netlink_unicast+0x449/0x710 [ 1558.399648][ T253] netlink_sendmsg+0x723/0xbe0 [ 1558.399648][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1558.399648][ T253] ___sys_sendmsg+0xee/0x170 [ 1558.399648][ T253] __sys_sendmsg+0xcd/0x170 [ 1558.399648][ T253] do_syscall_64+0xc6/0x1e0 [ 1558.399648][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1558.399648][ T253] [ 1568.642351][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1568.642846][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1568.642846][ T253] dst_init+0x84/0x4a0 [ 1568.642846][ T253] dst_alloc+0x97/0x150 [ 1568.642846][ T253] ip6_dst_alloc+0x23/0x90 [ 1568.642846][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1568.642846][ T253] ip6_pol_route+0x56f/0x840 [ 1568.642846][ T253] fib6_rule_lookup+0x334/0x630 [ 1568.642846][ T253] ip6_route_output_flags+0x259/0x480 [ 1568.642846][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1568.642846][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1568.642846][ T253] netlink_rcv_skb+0x130/0x360 [ 1568.642846][ T253] netlink_unicast+0x449/0x710 [ 1568.642846][ T253] netlink_sendmsg+0x723/0xbe0 [ 1568.642846][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1568.642846][ T253] ___sys_sendmsg+0xee/0x170 [ 1568.642846][ T253] __sys_sendmsg+0xcd/0x170 [ 1568.642846][ T253] do_syscall_64+0xc6/0x1e0 [ 1568.642846][ T253] [ 1568.645483][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1568.645483][ T253] netdev_get_by_index+0x5e/0x80 [ 1568.645483][ T253] fib6_nh_init+0x3d8/0x1580 [ 1568.645483][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1568.645483][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1568.645483][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1568.645483][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1568.645483][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1568.645483][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1568.645483][ T253] addrconf_dad_begin+0x310/0x670 [ 1568.645483][ T253] addrconf_dad_work+0x10b/0xab0 [ 1568.645483][ T253] process_one_work+0x84d/0x18a0 [ 1568.645483][ T253] worker_thread+0x587/0xd30 [ 1568.645483][ T253] kthread+0x28a/0x350 [ 1568.645483][ T253] ret_from_fork+0x31/0x70 [ 1568.645483][ T253] ret_from_fork_asm+0x1a/0x30 [ 1568.645483][ T253] [ 1568.648041][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1568.648041][ T253] netdev_get_by_index+0x5e/0x80 [ 1568.648041][ T253] fib6_nh_init+0x3d8/0x1580 [ 1568.648041][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1568.648041][ T253] ip6_route_add+0x1c/0x140 [ 1568.648041][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1568.648041][ T253] inet6_addr_add+0x4f8/0xa40 [ 1568.648041][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1568.648041][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1568.648041][ T253] netlink_rcv_skb+0x130/0x360 [ 1568.648041][ T253] netlink_unicast+0x449/0x710 [ 1568.648041][ T253] netlink_sendmsg+0x723/0xbe0 [ 1568.648041][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1568.648041][ T253] ___sys_sendmsg+0xee/0x170 [ 1568.648041][ T253] __sys_sendmsg+0xcd/0x170 [ 1568.648041][ T253] do_syscall_64+0xc6/0x1e0 [ 1568.648041][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1568.648041][ T253] [ 1568.650728][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1568.650728][ T253] netdev_get_by_index+0x5e/0x80 [ 1568.650728][ T253] fib6_nh_init+0x3d8/0x1580 [ 1568.650728][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1568.650728][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1568.650728][ T253] ipv6_add_addr+0x411/0x2000 [ 1568.650728][ T253] inet6_addr_add+0x30e/0xa40 [ 1568.650728][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1568.650728][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1568.650728][ T253] netlink_rcv_skb+0x130/0x360 [ 1568.650728][ T253] netlink_unicast+0x449/0x710 [ 1568.650728][ T253] netlink_sendmsg+0x723/0xbe0 [ 1568.650728][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1568.650728][ T253] ___sys_sendmsg+0xee/0x170 [ 1568.650728][ T253] __sys_sendmsg+0xcd/0x170 [ 1568.650728][ T253] do_syscall_64+0xc6/0x1e0 [ 1568.650728][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1568.650728][ T253] [ 1568.653436][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1568.653436][ T253] netdev_get_by_index+0x5e/0x80 [ 1568.653436][ T253] fib6_nh_init+0x3d8/0x1580 [ 1568.653436][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1568.653436][ T253] ip6_route_add+0x1c/0x140 [ 1568.653436][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1568.653436][ T253] addrconf_add_dev+0xe2/0x170 [ 1568.653436][ T253] inet6_addr_add+0x12f/0xa40 [ 1568.653436][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1568.653436][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1568.653436][ T253] netlink_rcv_skb+0x130/0x360 [ 1568.653436][ T253] netlink_unicast+0x449/0x710 [ 1568.653436][ T253] netlink_sendmsg+0x723/0xbe0 [ 1568.653436][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1568.653436][ T253] ___sys_sendmsg+0xee/0x170 [ 1568.653436][ T253] __sys_sendmsg+0xcd/0x170 [ 1568.653436][ T253] do_syscall_64+0xc6/0x1e0 [ 1568.653436][ T253] [ 1568.656079][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1568.656079][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1568.656079][ T253] ipv6_find_idev+0x102/0x170 [ 1568.656079][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1568.656079][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1568.656079][ T253] netlink_rcv_skb+0x130/0x360 [ 1568.656079][ T253] netlink_unicast+0x449/0x710 [ 1568.656079][ T253] netlink_sendmsg+0x723/0xbe0 [ 1568.656079][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1568.656079][ T253] ___sys_sendmsg+0xee/0x170 [ 1568.656079][ T253] __sys_sendmsg+0xcd/0x170 [ 1568.656079][ T253] do_syscall_64+0xc6/0x1e0 [ 1568.656079][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1568.656079][ T253] [ 1568.658155][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1568.658155][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1568.658155][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1568.658155][ T253] ipv6_find_idev+0x102/0x170 [ 1568.658155][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1568.658155][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1568.658155][ T253] netlink_rcv_skb+0x130/0x360 [ 1568.658155][ T253] netlink_unicast+0x449/0x710 [ 1568.658155][ T253] netlink_sendmsg+0x723/0xbe0 [ 1568.658155][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1568.658155][ T253] ___sys_sendmsg+0xee/0x170 [ 1568.658155][ T253] __sys_sendmsg+0xcd/0x170 [ 1568.658155][ T253] do_syscall_64+0xc6/0x1e0 [ 1568.658155][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1568.658155][ T253] [ 1578.898309][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1578.898796][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1578.898796][ T253] dst_init+0x84/0x4a0 [ 1578.898796][ T253] dst_alloc+0x97/0x150 [ 1578.898796][ T253] ip6_dst_alloc+0x23/0x90 [ 1578.898796][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1578.898796][ T253] ip6_pol_route+0x56f/0x840 [ 1578.898796][ T253] fib6_rule_lookup+0x334/0x630 [ 1578.898796][ T253] ip6_route_output_flags+0x259/0x480 [ 1578.898796][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1578.898796][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1578.898796][ T253] netlink_rcv_skb+0x130/0x360 [ 1578.898796][ T253] netlink_unicast+0x449/0x710 [ 1578.898796][ T253] netlink_sendmsg+0x723/0xbe0 [ 1578.898796][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1578.898796][ T253] ___sys_sendmsg+0xee/0x170 [ 1578.898796][ T253] __sys_sendmsg+0xcd/0x170 [ 1578.898796][ T253] do_syscall_64+0xc6/0x1e0 [ 1578.898796][ T253] [ 1578.901193][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1578.901193][ T253] netdev_get_by_index+0x5e/0x80 [ 1578.901193][ T253] fib6_nh_init+0x3d8/0x1580 [ 1578.901193][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1578.901193][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1578.901193][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1578.901193][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1578.901193][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1578.901193][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1578.901193][ T253] addrconf_dad_begin+0x310/0x670 [ 1578.901193][ T253] addrconf_dad_work+0x10b/0xab0 [ 1578.901193][ T253] process_one_work+0x84d/0x18a0 [ 1578.901193][ T253] worker_thread+0x587/0xd30 [ 1578.901193][ T253] kthread+0x28a/0x350 [ 1578.901193][ T253] ret_from_fork+0x31/0x70 [ 1578.901193][ T253] ret_from_fork_asm+0x1a/0x30 [ 1578.901193][ T253] [ 1578.903546][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1578.903546][ T253] netdev_get_by_index+0x5e/0x80 [ 1578.903546][ T253] fib6_nh_init+0x3d8/0x1580 [ 1578.903546][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1578.903546][ T253] ip6_route_add+0x1c/0x140 [ 1578.903546][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1578.903546][ T253] inet6_addr_add+0x4f8/0xa40 [ 1578.903546][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1578.903546][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1578.903546][ T253] netlink_rcv_skb+0x130/0x360 [ 1578.903546][ T253] netlink_unicast+0x449/0x710 [ 1578.903546][ T253] netlink_sendmsg+0x723/0xbe0 [ 1578.903546][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1578.903546][ T253] ___sys_sendmsg+0xee/0x170 [ 1578.903546][ T253] __sys_sendmsg+0xcd/0x170 [ 1578.903546][ T253] do_syscall_64+0xc6/0x1e0 [ 1578.903546][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1578.903546][ T253] [ 1578.905994][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1578.905994][ T253] netdev_get_by_index+0x5e/0x80 [ 1578.905994][ T253] fib6_nh_init+0x3d8/0x1580 [ 1578.905994][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1578.905994][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1578.905994][ T253] ipv6_add_addr+0x411/0x2000 [ 1578.905994][ T253] inet6_addr_add+0x30e/0xa40 [ 1578.905994][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1578.905994][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1578.905994][ T253] netlink_rcv_skb+0x130/0x360 [ 1578.905994][ T253] netlink_unicast+0x449/0x710 [ 1578.905994][ T253] netlink_sendmsg+0x723/0xbe0 [ 1578.905994][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1578.905994][ T253] ___sys_sendmsg+0xee/0x170 [ 1578.905994][ T253] __sys_sendmsg+0xcd/0x170 [ 1578.905994][ T253] do_syscall_64+0xc6/0x1e0 [ 1578.905994][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1578.905994][ T253] [ 1578.908440][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1578.908440][ T253] netdev_get_by_index+0x5e/0x80 [ 1578.908440][ T253] fib6_nh_init+0x3d8/0x1580 [ 1578.908440][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1578.908440][ T253] ip6_route_add+0x1c/0x140 [ 1578.908440][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1578.908440][ T253] addrconf_add_dev+0xe2/0x170 [ 1578.908440][ T253] inet6_addr_add+0x12f/0xa40 [ 1578.908440][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1578.908440][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1578.908440][ T253] netlink_rcv_skb+0x130/0x360 [ 1578.908440][ T253] netlink_unicast+0x449/0x710 [ 1578.908440][ T253] netlink_sendmsg+0x723/0xbe0 [ 1578.908440][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1578.908440][ T253] ___sys_sendmsg+0xee/0x170 [ 1578.908440][ T253] __sys_sendmsg+0xcd/0x170 [ 1578.908440][ T253] do_syscall_64+0xc6/0x1e0 [ 1578.908440][ T253] [ 1578.910834][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1578.910834][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1578.910834][ T253] ipv6_find_idev+0x102/0x170 [ 1578.910834][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1578.910834][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1578.910834][ T253] netlink_rcv_skb+0x130/0x360 [ 1578.910834][ T253] netlink_unicast+0x449/0x710 [ 1578.910834][ T253] netlink_sendmsg+0x723/0xbe0 [ 1578.910834][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1578.910834][ T253] ___sys_sendmsg+0xee/0x170 [ 1578.910834][ T253] __sys_sendmsg+0xcd/0x170 [ 1578.910834][ T253] do_syscall_64+0xc6/0x1e0 [ 1578.910834][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1578.910834][ T253] [ 1578.912582][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1578.912582][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1578.912582][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1578.912582][ T253] ipv6_find_idev+0x102/0x170 [ 1578.912582][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1578.912582][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1578.912582][ T253] netlink_rcv_skb+0x130/0x360 [ 1578.912582][ T253] netlink_unicast+0x449/0x710 [ 1578.912582][ T253] netlink_sendmsg+0x723/0xbe0 [ 1578.912582][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1578.912582][ T253] ___sys_sendmsg+0xee/0x170 [ 1578.912582][ T253] __sys_sendmsg+0xcd/0x170 [ 1578.912582][ T253] do_syscall_64+0xc6/0x1e0 [ 1578.912582][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1578.912582][ T253] [ 1588.954313][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1588.954728][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1588.954728][ T253] dst_init+0x84/0x4a0 [ 1588.954728][ T253] dst_alloc+0x97/0x150 [ 1588.954728][ T253] ip6_dst_alloc+0x23/0x90 [ 1588.954728][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1588.954728][ T253] ip6_pol_route+0x56f/0x840 [ 1588.954728][ T253] fib6_rule_lookup+0x334/0x630 [ 1588.954728][ T253] ip6_route_output_flags+0x259/0x480 [ 1588.954728][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1588.954728][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1588.954728][ T253] netlink_rcv_skb+0x130/0x360 [ 1588.954728][ T253] netlink_unicast+0x449/0x710 [ 1588.954728][ T253] netlink_sendmsg+0x723/0xbe0 [ 1588.954728][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1588.954728][ T253] ___sys_sendmsg+0xee/0x170 [ 1588.954728][ T253] __sys_sendmsg+0xcd/0x170 [ 1588.954728][ T253] do_syscall_64+0xc6/0x1e0 [ 1588.954728][ T253] [ 1588.956914][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1588.956914][ T253] netdev_get_by_index+0x5e/0x80 [ 1588.956914][ T253] fib6_nh_init+0x3d8/0x1580 [ 1588.956914][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1588.956914][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1588.956914][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1588.956914][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1588.956914][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1588.956914][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1588.956914][ T253] addrconf_dad_begin+0x310/0x670 [ 1588.956914][ T253] addrconf_dad_work+0x10b/0xab0 [ 1588.956914][ T253] process_one_work+0x84d/0x18a0 [ 1588.956914][ T253] worker_thread+0x587/0xd30 [ 1588.956914][ T253] kthread+0x28a/0x350 [ 1588.956914][ T253] ret_from_fork+0x31/0x70 [ 1588.956914][ T253] ret_from_fork_asm+0x1a/0x30 [ 1588.956914][ T253] [ 1588.959239][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1588.959239][ T253] netdev_get_by_index+0x5e/0x80 [ 1588.959239][ T253] fib6_nh_init+0x3d8/0x1580 [ 1588.959239][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1588.959239][ T253] ip6_route_add+0x1c/0x140 [ 1588.959239][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1588.959239][ T253] inet6_addr_add+0x4f8/0xa40 [ 1588.959239][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1588.959239][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1588.959239][ T253] netlink_rcv_skb+0x130/0x360 [ 1588.959239][ T253] netlink_unicast+0x449/0x710 [ 1588.959239][ T253] netlink_sendmsg+0x723/0xbe0 [ 1588.959239][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1588.959239][ T253] ___sys_sendmsg+0xee/0x170 [ 1588.959239][ T253] __sys_sendmsg+0xcd/0x170 [ 1588.959239][ T253] do_syscall_64+0xc6/0x1e0 [ 1588.959239][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1588.959239][ T253] [ 1588.961695][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1588.961695][ T253] netdev_get_by_index+0x5e/0x80 [ 1588.961695][ T253] fib6_nh_init+0x3d8/0x1580 [ 1588.961695][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1588.961695][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1588.961695][ T253] ipv6_add_addr+0x411/0x2000 [ 1588.961695][ T253] inet6_addr_add+0x30e/0xa40 [ 1588.961695][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1588.961695][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1588.961695][ T253] netlink_rcv_skb+0x130/0x360 [ 1588.961695][ T253] netlink_unicast+0x449/0x710 [ 1588.961695][ T253] netlink_sendmsg+0x723/0xbe0 [ 1588.961695][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1588.961695][ T253] ___sys_sendmsg+0xee/0x170 [ 1588.961695][ T253] __sys_sendmsg+0xcd/0x170 [ 1588.961695][ T253] do_syscall_64+0xc6/0x1e0 [ 1588.961695][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1588.961695][ T253] [ 1588.964152][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1588.964152][ T253] netdev_get_by_index+0x5e/0x80 [ 1588.964152][ T253] fib6_nh_init+0x3d8/0x1580 [ 1588.964152][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1588.964152][ T253] ip6_route_add+0x1c/0x140 [ 1588.964152][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1588.964152][ T253] addrconf_add_dev+0xe2/0x170 [ 1588.964152][ T253] inet6_addr_add+0x12f/0xa40 [ 1588.964152][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1588.964152][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1588.964152][ T253] netlink_rcv_skb+0x130/0x360 [ 1588.964152][ T253] netlink_unicast+0x449/0x710 [ 1588.964152][ T253] netlink_sendmsg+0x723/0xbe0 [ 1588.964152][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1588.964152][ T253] ___sys_sendmsg+0xee/0x170 [ 1588.964152][ T253] __sys_sendmsg+0xcd/0x170 [ 1588.964152][ T253] do_syscall_64+0xc6/0x1e0 [ 1588.964152][ T253] [ 1588.966558][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1588.966558][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1588.966558][ T253] ipv6_find_idev+0x102/0x170 [ 1588.966558][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1588.966558][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1588.966558][ T253] netlink_rcv_skb+0x130/0x360 [ 1588.966558][ T253] netlink_unicast+0x449/0x710 [ 1588.966558][ T253] netlink_sendmsg+0x723/0xbe0 [ 1588.966558][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1588.966558][ T253] ___sys_sendmsg+0xee/0x170 [ 1588.966558][ T253] __sys_sendmsg+0xcd/0x170 [ 1588.966558][ T253] do_syscall_64+0xc6/0x1e0 [ 1588.966558][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1588.966558][ T253] [ 1588.968442][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1588.968442][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1588.968442][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1588.968442][ T253] ipv6_find_idev+0x102/0x170 [ 1588.968442][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1588.968442][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1588.968442][ T253] netlink_rcv_skb+0x130/0x360 [ 1588.968442][ T253] netlink_unicast+0x449/0x710 [ 1588.968442][ T253] netlink_sendmsg+0x723/0xbe0 [ 1588.968442][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1588.968442][ T253] ___sys_sendmsg+0xee/0x170 [ 1588.968442][ T253] __sys_sendmsg+0xcd/0x170 [ 1588.968442][ T253] do_syscall_64+0xc6/0x1e0 [ 1588.968442][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1588.968442][ T253] [ 1599.210315][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1599.210749][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1599.210749][ T253] dst_init+0x84/0x4a0 [ 1599.210749][ T253] dst_alloc+0x97/0x150 [ 1599.210749][ T253] ip6_dst_alloc+0x23/0x90 [ 1599.210749][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1599.210749][ T253] ip6_pol_route+0x56f/0x840 [ 1599.210749][ T253] fib6_rule_lookup+0x334/0x630 [ 1599.210749][ T253] ip6_route_output_flags+0x259/0x480 [ 1599.210749][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1599.210749][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1599.210749][ T253] netlink_rcv_skb+0x130/0x360 [ 1599.210749][ T253] netlink_unicast+0x449/0x710 [ 1599.210749][ T253] netlink_sendmsg+0x723/0xbe0 [ 1599.210749][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1599.210749][ T253] ___sys_sendmsg+0xee/0x170 [ 1599.210749][ T253] __sys_sendmsg+0xcd/0x170 [ 1599.210749][ T253] do_syscall_64+0xc6/0x1e0 [ 1599.210749][ T253] [ 1599.213143][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1599.213143][ T253] netdev_get_by_index+0x5e/0x80 [ 1599.213143][ T253] fib6_nh_init+0x3d8/0x1580 [ 1599.213143][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1599.213143][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1599.213143][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1599.213143][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1599.213143][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1599.213143][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1599.213143][ T253] addrconf_dad_begin+0x310/0x670 [ 1599.213143][ T253] addrconf_dad_work+0x10b/0xab0 [ 1599.213143][ T253] process_one_work+0x84d/0x18a0 [ 1599.213143][ T253] worker_thread+0x587/0xd30 [ 1599.213143][ T253] kthread+0x28a/0x350 [ 1599.213143][ T253] ret_from_fork+0x31/0x70 [ 1599.213143][ T253] ret_from_fork_asm+0x1a/0x30 [ 1599.213143][ T253] [ 1599.215478][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1599.215478][ T253] netdev_get_by_index+0x5e/0x80 [ 1599.215478][ T253] fib6_nh_init+0x3d8/0x1580 [ 1599.215478][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1599.215478][ T253] ip6_route_add+0x1c/0x140 [ 1599.215478][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1599.215478][ T253] inet6_addr_add+0x4f8/0xa40 [ 1599.215478][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1599.215478][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1599.215478][ T253] netlink_rcv_skb+0x130/0x360 [ 1599.215478][ T253] netlink_unicast+0x449/0x710 [ 1599.215478][ T253] netlink_sendmsg+0x723/0xbe0 [ 1599.215478][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1599.215478][ T253] ___sys_sendmsg+0xee/0x170 [ 1599.215478][ T253] __sys_sendmsg+0xcd/0x170 [ 1599.215478][ T253] do_syscall_64+0xc6/0x1e0 [ 1599.215478][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1599.215478][ T253] [ 1599.217918][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1599.217918][ T253] netdev_get_by_index+0x5e/0x80 [ 1599.217918][ T253] fib6_nh_init+0x3d8/0x1580 [ 1599.217918][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1599.217918][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1599.217918][ T253] ipv6_add_addr+0x411/0x2000 [ 1599.217918][ T253] inet6_addr_add+0x30e/0xa40 [ 1599.217918][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1599.217918][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1599.217918][ T253] netlink_rcv_skb+0x130/0x360 [ 1599.217918][ T253] netlink_unicast+0x449/0x710 [ 1599.217918][ T253] netlink_sendmsg+0x723/0xbe0 [ 1599.217918][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1599.217918][ T253] ___sys_sendmsg+0xee/0x170 [ 1599.217918][ T253] __sys_sendmsg+0xcd/0x170 [ 1599.217918][ T253] do_syscall_64+0xc6/0x1e0 [ 1599.217918][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1599.217918][ T253] [ 1599.220372][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1599.220372][ T253] netdev_get_by_index+0x5e/0x80 [ 1599.220372][ T253] fib6_nh_init+0x3d8/0x1580 [ 1599.220372][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1599.220372][ T253] ip6_route_add+0x1c/0x140 [ 1599.220372][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1599.220372][ T253] addrconf_add_dev+0xe2/0x170 [ 1599.220372][ T253] inet6_addr_add+0x12f/0xa40 [ 1599.220372][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1599.220372][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1599.220372][ T253] netlink_rcv_skb+0x130/0x360 [ 1599.220372][ T253] netlink_unicast+0x449/0x710 [ 1599.220372][ T253] netlink_sendmsg+0x723/0xbe0 [ 1599.220372][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1599.220372][ T253] ___sys_sendmsg+0xee/0x170 [ 1599.220372][ T253] __sys_sendmsg+0xcd/0x170 [ 1599.220372][ T253] do_syscall_64+0xc6/0x1e0 [ 1599.220372][ T253] [ 1599.222783][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1599.222783][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1599.222783][ T253] ipv6_find_idev+0x102/0x170 [ 1599.222783][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1599.222783][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1599.222783][ T253] netlink_rcv_skb+0x130/0x360 [ 1599.222783][ T253] netlink_unicast+0x449/0x710 [ 1599.222783][ T253] netlink_sendmsg+0x723/0xbe0 [ 1599.222783][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1599.222783][ T253] ___sys_sendmsg+0xee/0x170 [ 1599.222783][ T253] __sys_sendmsg+0xcd/0x170 [ 1599.222783][ T253] do_syscall_64+0xc6/0x1e0 [ 1599.222783][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1599.222783][ T253] [ 1599.224668][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1599.224668][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1599.224668][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1599.224668][ T253] ipv6_find_idev+0x102/0x170 [ 1599.224668][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1599.224668][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1599.224668][ T253] netlink_rcv_skb+0x130/0x360 [ 1599.224668][ T253] netlink_unicast+0x449/0x710 [ 1599.224668][ T253] netlink_sendmsg+0x723/0xbe0 [ 1599.224668][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1599.224668][ T253] ___sys_sendmsg+0xee/0x170 [ 1599.224668][ T253] __sys_sendmsg+0xcd/0x170 [ 1599.224668][ T253] do_syscall_64+0xc6/0x1e0 [ 1599.224668][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1599.224668][ T253] [ 1609.234348][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1609.234841][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1609.234841][ T253] dst_init+0x84/0x4a0 [ 1609.234841][ T253] dst_alloc+0x97/0x150 [ 1609.234841][ T253] ip6_dst_alloc+0x23/0x90 [ 1609.234841][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1609.234841][ T253] ip6_pol_route+0x56f/0x840 [ 1609.234841][ T253] fib6_rule_lookup+0x334/0x630 [ 1609.234841][ T253] ip6_route_output_flags+0x259/0x480 [ 1609.234841][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1609.234841][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1609.234841][ T253] netlink_rcv_skb+0x130/0x360 [ 1609.234841][ T253] netlink_unicast+0x449/0x710 [ 1609.234841][ T253] netlink_sendmsg+0x723/0xbe0 [ 1609.234841][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1609.234841][ T253] ___sys_sendmsg+0xee/0x170 [ 1609.234841][ T253] __sys_sendmsg+0xcd/0x170 [ 1609.234841][ T253] do_syscall_64+0xc6/0x1e0 [ 1609.234841][ T253] [ 1609.237232][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1609.237232][ T253] netdev_get_by_index+0x5e/0x80 [ 1609.237232][ T253] fib6_nh_init+0x3d8/0x1580 [ 1609.237232][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1609.237232][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1609.237232][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1609.237232][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1609.237232][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1609.237232][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1609.237232][ T253] addrconf_dad_begin+0x310/0x670 [ 1609.237232][ T253] addrconf_dad_work+0x10b/0xab0 [ 1609.237232][ T253] process_one_work+0x84d/0x18a0 [ 1609.237232][ T253] worker_thread+0x587/0xd30 [ 1609.237232][ T253] kthread+0x28a/0x350 [ 1609.237232][ T253] ret_from_fork+0x31/0x70 [ 1609.237232][ T253] ret_from_fork_asm+0x1a/0x30 [ 1609.237232][ T253] [ 1609.239567][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1609.239567][ T253] netdev_get_by_index+0x5e/0x80 [ 1609.239567][ T253] fib6_nh_init+0x3d8/0x1580 [ 1609.239567][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1609.239567][ T253] ip6_route_add+0x1c/0x140 [ 1609.239567][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1609.239567][ T253] inet6_addr_add+0x4f8/0xa40 [ 1609.239567][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1609.239567][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1609.239567][ T253] netlink_rcv_skb+0x130/0x360 [ 1609.239567][ T253] netlink_unicast+0x449/0x710 [ 1609.239567][ T253] netlink_sendmsg+0x723/0xbe0 [ 1609.239567][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1609.239567][ T253] ___sys_sendmsg+0xee/0x170 [ 1609.239567][ T253] __sys_sendmsg+0xcd/0x170 [ 1609.239567][ T253] do_syscall_64+0xc6/0x1e0 [ 1609.239567][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1609.239567][ T253] [ 1609.242002][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1609.242002][ T253] netdev_get_by_index+0x5e/0x80 [ 1609.242002][ T253] fib6_nh_init+0x3d8/0x1580 [ 1609.242002][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1609.242002][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1609.242002][ T253] ipv6_add_addr+0x411/0x2000 [ 1609.242002][ T253] inet6_addr_add+0x30e/0xa40 [ 1609.242002][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1609.242002][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1609.242002][ T253] netlink_rcv_skb+0x130/0x360 [ 1609.242002][ T253] netlink_unicast+0x449/0x710 [ 1609.242002][ T253] netlink_sendmsg+0x723/0xbe0 [ 1609.242002][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1609.242002][ T253] ___sys_sendmsg+0xee/0x170 [ 1609.242002][ T253] __sys_sendmsg+0xcd/0x170 [ 1609.242002][ T253] do_syscall_64+0xc6/0x1e0 [ 1609.242002][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1609.242002][ T253] [ 1609.244236][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1609.244236][ T253] netdev_get_by_index+0x5e/0x80 [ 1609.244236][ T253] fib6_nh_init+0x3d8/0x1580 [ 1609.244236][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1609.244236][ T253] ip6_route_add+0x1c/0x140 [ 1609.244236][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1609.244236][ T253] addrconf_add_dev+0xe2/0x170 [ 1609.244236][ T253] inet6_addr_add+0x12f/0xa40 [ 1609.244236][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1609.244236][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1609.244236][ T253] netlink_rcv_skb+0x130/0x360 [ 1609.244236][ T253] netlink_unicast+0x449/0x710 [ 1609.244236][ T253] netlink_sendmsg+0x723/0xbe0 [ 1609.244236][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1609.244236][ T253] ___sys_sendmsg+0xee/0x170 [ 1609.244236][ T253] __sys_sendmsg+0xcd/0x170 [ 1609.244236][ T253] do_syscall_64+0xc6/0x1e0 [ 1609.244236][ T253] [ 1609.246429][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1609.246429][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1609.246429][ T253] ipv6_find_idev+0x102/0x170 [ 1609.246429][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1609.246429][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1609.246429][ T253] netlink_rcv_skb+0x130/0x360 [ 1609.246429][ T253] netlink_unicast+0x449/0x710 [ 1609.246429][ T253] netlink_sendmsg+0x723/0xbe0 [ 1609.246429][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1609.246429][ T253] ___sys_sendmsg+0xee/0x170 [ 1609.246429][ T253] __sys_sendmsg+0xcd/0x170 [ 1609.246429][ T253] do_syscall_64+0xc6/0x1e0 [ 1609.246429][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1609.246429][ T253] [ 1609.248149][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1609.248149][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1609.248149][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1609.248149][ T253] ipv6_find_idev+0x102/0x170 [ 1609.248149][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1609.248149][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1609.248149][ T253] netlink_rcv_skb+0x130/0x360 [ 1609.248149][ T253] netlink_unicast+0x449/0x710 [ 1609.248149][ T253] netlink_sendmsg+0x723/0xbe0 [ 1609.248149][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1609.248149][ T253] ___sys_sendmsg+0xee/0x170 [ 1609.248149][ T253] __sys_sendmsg+0xcd/0x170 [ 1609.248149][ T253] do_syscall_64+0xc6/0x1e0 [ 1609.248149][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1609.248149][ T253] [ 1619.490307][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1619.490738][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1619.490738][ T253] dst_init+0x84/0x4a0 [ 1619.490738][ T253] dst_alloc+0x97/0x150 [ 1619.490738][ T253] ip6_dst_alloc+0x23/0x90 [ 1619.490738][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1619.490738][ T253] ip6_pol_route+0x56f/0x840 [ 1619.490738][ T253] fib6_rule_lookup+0x334/0x630 [ 1619.490738][ T253] ip6_route_output_flags+0x259/0x480 [ 1619.490738][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1619.490738][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1619.490738][ T253] netlink_rcv_skb+0x130/0x360 [ 1619.490738][ T253] netlink_unicast+0x449/0x710 [ 1619.490738][ T253] netlink_sendmsg+0x723/0xbe0 [ 1619.490738][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1619.490738][ T253] ___sys_sendmsg+0xee/0x170 [ 1619.490738][ T253] __sys_sendmsg+0xcd/0x170 [ 1619.490738][ T253] do_syscall_64+0xc6/0x1e0 [ 1619.490738][ T253] [ 1619.493135][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1619.493135][ T253] netdev_get_by_index+0x5e/0x80 [ 1619.493135][ T253] fib6_nh_init+0x3d8/0x1580 [ 1619.493135][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1619.493135][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1619.493135][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1619.493135][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1619.493135][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1619.493135][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1619.493135][ T253] addrconf_dad_begin+0x310/0x670 [ 1619.493135][ T253] addrconf_dad_work+0x10b/0xab0 [ 1619.493135][ T253] process_one_work+0x84d/0x18a0 [ 1619.493135][ T253] worker_thread+0x587/0xd30 [ 1619.493135][ T253] kthread+0x28a/0x350 [ 1619.493135][ T253] ret_from_fork+0x31/0x70 [ 1619.493135][ T253] ret_from_fork_asm+0x1a/0x30 [ 1619.493135][ T253] [ 1619.495456][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1619.495456][ T253] netdev_get_by_index+0x5e/0x80 [ 1619.495456][ T253] fib6_nh_init+0x3d8/0x1580 [ 1619.495456][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1619.495456][ T253] ip6_route_add+0x1c/0x140 [ 1619.495456][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1619.495456][ T253] inet6_addr_add+0x4f8/0xa40 [ 1619.495456][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1619.495456][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1619.495456][ T253] netlink_rcv_skb+0x130/0x360 [ 1619.495456][ T253] netlink_unicast+0x449/0x710 [ 1619.495456][ T253] netlink_sendmsg+0x723/0xbe0 [ 1619.495456][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1619.495456][ T253] ___sys_sendmsg+0xee/0x170 [ 1619.495456][ T253] __sys_sendmsg+0xcd/0x170 [ 1619.495456][ T253] do_syscall_64+0xc6/0x1e0 [ 1619.495456][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1619.495456][ T253] [ 1619.498399][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1619.498399][ T253] netdev_get_by_index+0x5e/0x80 [ 1619.498399][ T253] fib6_nh_init+0x3d8/0x1580 [ 1619.498399][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1619.498399][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1619.498399][ T253] ipv6_add_addr+0x411/0x2000 [ 1619.498399][ T253] inet6_addr_add+0x30e/0xa40 [ 1619.498399][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1619.498399][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1619.498399][ T253] netlink_rcv_skb+0x130/0x360 [ 1619.498399][ T253] netlink_unicast+0x449/0x710 [ 1619.498399][ T253] netlink_sendmsg+0x723/0xbe0 [ 1619.498399][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1619.498399][ T253] ___sys_sendmsg+0xee/0x170 [ 1619.498399][ T253] __sys_sendmsg+0xcd/0x170 [ 1619.498399][ T253] do_syscall_64+0xc6/0x1e0 [ 1619.498399][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1619.498399][ T253] [ 1619.500853][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1619.500853][ T253] netdev_get_by_index+0x5e/0x80 [ 1619.500853][ T253] fib6_nh_init+0x3d8/0x1580 [ 1619.500853][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1619.500853][ T253] ip6_route_add+0x1c/0x140 [ 1619.500853][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1619.500853][ T253] addrconf_add_dev+0xe2/0x170 [ 1619.500853][ T253] inet6_addr_add+0x12f/0xa40 [ 1619.500853][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1619.500853][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1619.500853][ T253] netlink_rcv_skb+0x130/0x360 [ 1619.500853][ T253] netlink_unicast+0x449/0x710 [ 1619.500853][ T253] netlink_sendmsg+0x723/0xbe0 [ 1619.500853][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1619.500853][ T253] ___sys_sendmsg+0xee/0x170 [ 1619.500853][ T253] __sys_sendmsg+0xcd/0x170 [ 1619.500853][ T253] do_syscall_64+0xc6/0x1e0 [ 1619.500853][ T253] [ 1619.503254][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1619.503254][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1619.503254][ T253] ipv6_find_idev+0x102/0x170 [ 1619.503254][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1619.503254][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1619.503254][ T253] netlink_rcv_skb+0x130/0x360 [ 1619.503254][ T253] netlink_unicast+0x449/0x710 [ 1619.503254][ T253] netlink_sendmsg+0x723/0xbe0 [ 1619.503254][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1619.503254][ T253] ___sys_sendmsg+0xee/0x170 [ 1619.503254][ T253] __sys_sendmsg+0xcd/0x170 [ 1619.503254][ T253] do_syscall_64+0xc6/0x1e0 [ 1619.503254][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1619.503254][ T253] [ 1619.505520][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1619.505520][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1619.505520][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1619.505520][ T253] ipv6_find_idev+0x102/0x170 [ 1619.505520][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1619.505520][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1619.505520][ T253] netlink_rcv_skb+0x130/0x360 [ 1619.505520][ T253] netlink_unicast+0x449/0x710 [ 1619.505520][ T253] netlink_sendmsg+0x723/0xbe0 [ 1619.505520][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1619.505520][ T253] ___sys_sendmsg+0xee/0x170 [ 1619.505520][ T253] __sys_sendmsg+0xcd/0x170 [ 1619.505520][ T253] do_syscall_64+0xc6/0x1e0 [ 1619.505520][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1619.505520][ T253] [ 1629.746341][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1629.746759][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1629.746759][ T253] dst_init+0x84/0x4a0 [ 1629.746759][ T253] dst_alloc+0x97/0x150 [ 1629.746759][ T253] ip6_dst_alloc+0x23/0x90 [ 1629.746759][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1629.746759][ T253] ip6_pol_route+0x56f/0x840 [ 1629.746759][ T253] fib6_rule_lookup+0x334/0x630 [ 1629.746759][ T253] ip6_route_output_flags+0x259/0x480 [ 1629.746759][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1629.746759][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1629.746759][ T253] netlink_rcv_skb+0x130/0x360 [ 1629.746759][ T253] netlink_unicast+0x449/0x710 [ 1629.746759][ T253] netlink_sendmsg+0x723/0xbe0 [ 1629.746759][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1629.746759][ T253] ___sys_sendmsg+0xee/0x170 [ 1629.746759][ T253] __sys_sendmsg+0xcd/0x170 [ 1629.746759][ T253] do_syscall_64+0xc6/0x1e0 [ 1629.746759][ T253] [ 1629.748945][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1629.748945][ T253] netdev_get_by_index+0x5e/0x80 [ 1629.748945][ T253] fib6_nh_init+0x3d8/0x1580 [ 1629.748945][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1629.748945][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1629.748945][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1629.748945][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1629.748945][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1629.748945][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1629.748945][ T253] addrconf_dad_begin+0x310/0x670 [ 1629.748945][ T253] addrconf_dad_work+0x10b/0xab0 [ 1629.748945][ T253] process_one_work+0x84d/0x18a0 [ 1629.748945][ T253] worker_thread+0x587/0xd30 [ 1629.748945][ T253] kthread+0x28a/0x350 [ 1629.748945][ T253] ret_from_fork+0x31/0x70 [ 1629.748945][ T253] ret_from_fork_asm+0x1a/0x30 [ 1629.748945][ T253] [ 1629.751079][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1629.751079][ T253] netdev_get_by_index+0x5e/0x80 [ 1629.751079][ T253] fib6_nh_init+0x3d8/0x1580 [ 1629.751079][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1629.751079][ T253] ip6_route_add+0x1c/0x140 [ 1629.751079][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1629.751079][ T253] inet6_addr_add+0x4f8/0xa40 [ 1629.751079][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1629.751079][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1629.751079][ T253] netlink_rcv_skb+0x130/0x360 [ 1629.751079][ T253] netlink_unicast+0x449/0x710 [ 1629.751079][ T253] netlink_sendmsg+0x723/0xbe0 [ 1629.751079][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1629.751079][ T253] ___sys_sendmsg+0xee/0x170 [ 1629.751079][ T253] __sys_sendmsg+0xcd/0x170 [ 1629.751079][ T253] do_syscall_64+0xc6/0x1e0 [ 1629.751079][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1629.751079][ T253] [ 1629.754057][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1629.754057][ T253] netdev_get_by_index+0x5e/0x80 [ 1629.754057][ T253] fib6_nh_init+0x3d8/0x1580 [ 1629.754057][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1629.754057][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1629.754057][ T253] ipv6_add_addr+0x411/0x2000 [ 1629.754057][ T253] inet6_addr_add+0x30e/0xa40 [ 1629.754057][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1629.754057][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1629.754057][ T253] netlink_rcv_skb+0x130/0x360 [ 1629.754057][ T253] netlink_unicast+0x449/0x710 [ 1629.754057][ T253] netlink_sendmsg+0x723/0xbe0 [ 1629.754057][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1629.754057][ T253] ___sys_sendmsg+0xee/0x170 [ 1629.754057][ T253] __sys_sendmsg+0xcd/0x170 [ 1629.754057][ T253] do_syscall_64+0xc6/0x1e0 [ 1629.754057][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1629.754057][ T253] [ 1629.756292][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1629.756292][ T253] netdev_get_by_index+0x5e/0x80 [ 1629.756292][ T253] fib6_nh_init+0x3d8/0x1580 [ 1629.756292][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1629.756292][ T253] ip6_route_add+0x1c/0x140 [ 1629.756292][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1629.756292][ T253] addrconf_add_dev+0xe2/0x170 [ 1629.756292][ T253] inet6_addr_add+0x12f/0xa40 [ 1629.756292][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1629.756292][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1629.756292][ T253] netlink_rcv_skb+0x130/0x360 [ 1629.756292][ T253] netlink_unicast+0x449/0x710 [ 1629.756292][ T253] netlink_sendmsg+0x723/0xbe0 [ 1629.756292][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1629.756292][ T253] ___sys_sendmsg+0xee/0x170 [ 1629.756292][ T253] __sys_sendmsg+0xcd/0x170 [ 1629.756292][ T253] do_syscall_64+0xc6/0x1e0 [ 1629.756292][ T253] [ 1629.758485][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1629.758485][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1629.758485][ T253] ipv6_find_idev+0x102/0x170 [ 1629.758485][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1629.758485][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1629.758485][ T253] netlink_rcv_skb+0x130/0x360 [ 1629.758485][ T253] netlink_unicast+0x449/0x710 [ 1629.758485][ T253] netlink_sendmsg+0x723/0xbe0 [ 1629.758485][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1629.758485][ T253] ___sys_sendmsg+0xee/0x170 [ 1629.758485][ T253] __sys_sendmsg+0xcd/0x170 [ 1629.758485][ T253] do_syscall_64+0xc6/0x1e0 [ 1629.758485][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1629.758485][ T253] [ 1629.760203][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1629.760203][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1629.760203][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1629.760203][ T253] ipv6_find_idev+0x102/0x170 [ 1629.760203][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1629.760203][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1629.760203][ T253] netlink_rcv_skb+0x130/0x360 [ 1629.760203][ T253] netlink_unicast+0x449/0x710 [ 1629.760203][ T253] netlink_sendmsg+0x723/0xbe0 [ 1629.760203][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1629.760203][ T253] ___sys_sendmsg+0xee/0x170 [ 1629.760203][ T253] __sys_sendmsg+0xcd/0x170 [ 1629.760203][ T253] do_syscall_64+0xc6/0x1e0 [ 1629.760203][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1629.760203][ T253] [ 1639.850310][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1639.850751][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1639.850751][ T253] dst_init+0x84/0x4a0 [ 1639.850751][ T253] dst_alloc+0x97/0x150 [ 1639.850751][ T253] ip6_dst_alloc+0x23/0x90 [ 1639.850751][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1639.850751][ T253] ip6_pol_route+0x56f/0x840 [ 1639.850751][ T253] fib6_rule_lookup+0x334/0x630 [ 1639.850751][ T253] ip6_route_output_flags+0x259/0x480 [ 1639.850751][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1639.850751][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1639.850751][ T253] netlink_rcv_skb+0x130/0x360 [ 1639.850751][ T253] netlink_unicast+0x449/0x710 [ 1639.850751][ T253] netlink_sendmsg+0x723/0xbe0 [ 1639.850751][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1639.850751][ T253] ___sys_sendmsg+0xee/0x170 [ 1639.850751][ T253] __sys_sendmsg+0xcd/0x170 [ 1639.850751][ T253] do_syscall_64+0xc6/0x1e0 [ 1639.850751][ T253] [ 1639.853194][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1639.853194][ T253] netdev_get_by_index+0x5e/0x80 [ 1639.853194][ T253] fib6_nh_init+0x3d8/0x1580 [ 1639.853194][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1639.853194][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1639.853194][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1639.853194][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1639.853194][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1639.853194][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1639.853194][ T253] addrconf_dad_begin+0x310/0x670 [ 1639.853194][ T253] addrconf_dad_work+0x10b/0xab0 [ 1639.853194][ T253] process_one_work+0x84d/0x18a0 [ 1639.853194][ T253] worker_thread+0x587/0xd30 [ 1639.853194][ T253] kthread+0x28a/0x350 [ 1639.853194][ T253] ret_from_fork+0x31/0x70 [ 1639.853194][ T253] ret_from_fork_asm+0x1a/0x30 [ 1639.853194][ T253] [ 1639.855546][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1639.855546][ T253] netdev_get_by_index+0x5e/0x80 [ 1639.855546][ T253] fib6_nh_init+0x3d8/0x1580 [ 1639.855546][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1639.855546][ T253] ip6_route_add+0x1c/0x140 [ 1639.855546][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1639.855546][ T253] inet6_addr_add+0x4f8/0xa40 [ 1639.855546][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1639.855546][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1639.855546][ T253] netlink_rcv_skb+0x130/0x360 [ 1639.855546][ T253] netlink_unicast+0x449/0x710 [ 1639.855546][ T253] netlink_sendmsg+0x723/0xbe0 [ 1639.855546][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1639.855546][ T253] ___sys_sendmsg+0xee/0x170 [ 1639.855546][ T253] __sys_sendmsg+0xcd/0x170 [ 1639.855546][ T253] do_syscall_64+0xc6/0x1e0 [ 1639.855546][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1639.855546][ T253] [ 1639.857986][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1639.857986][ T253] netdev_get_by_index+0x5e/0x80 [ 1639.857986][ T253] fib6_nh_init+0x3d8/0x1580 [ 1639.857986][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1639.857986][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1639.857986][ T253] ipv6_add_addr+0x411/0x2000 [ 1639.857986][ T253] inet6_addr_add+0x30e/0xa40 [ 1639.857986][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1639.857986][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1639.857986][ T253] netlink_rcv_skb+0x130/0x360 [ 1639.857986][ T253] netlink_unicast+0x449/0x710 [ 1639.857986][ T253] netlink_sendmsg+0x723/0xbe0 [ 1639.857986][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1639.857986][ T253] ___sys_sendmsg+0xee/0x170 [ 1639.857986][ T253] __sys_sendmsg+0xcd/0x170 [ 1639.857986][ T253] do_syscall_64+0xc6/0x1e0 [ 1639.857986][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1639.857986][ T253] [ 1639.860430][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1639.860430][ T253] netdev_get_by_index+0x5e/0x80 [ 1639.860430][ T253] fib6_nh_init+0x3d8/0x1580 [ 1639.860430][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1639.860430][ T253] ip6_route_add+0x1c/0x140 [ 1639.860430][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1639.860430][ T253] addrconf_add_dev+0xe2/0x170 [ 1639.860430][ T253] inet6_addr_add+0x12f/0xa40 [ 1639.860430][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1639.860430][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1639.860430][ T253] netlink_rcv_skb+0x130/0x360 [ 1639.860430][ T253] netlink_unicast+0x449/0x710 [ 1639.860430][ T253] netlink_sendmsg+0x723/0xbe0 [ 1639.860430][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1639.860430][ T253] ___sys_sendmsg+0xee/0x170 [ 1639.860430][ T253] __sys_sendmsg+0xcd/0x170 [ 1639.860430][ T253] do_syscall_64+0xc6/0x1e0 [ 1639.860430][ T253] [ 1639.862773][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1639.862773][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1639.862773][ T253] ipv6_find_idev+0x102/0x170 [ 1639.862773][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1639.862773][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1639.862773][ T253] netlink_rcv_skb+0x130/0x360 [ 1639.862773][ T253] netlink_unicast+0x449/0x710 [ 1639.862773][ T253] netlink_sendmsg+0x723/0xbe0 [ 1639.862773][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1639.862773][ T253] ___sys_sendmsg+0xee/0x170 [ 1639.862773][ T253] __sys_sendmsg+0xcd/0x170 [ 1639.862773][ T253] do_syscall_64+0xc6/0x1e0 [ 1639.862773][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1639.862773][ T253] [ 1639.864505][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1639.864505][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1639.864505][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1639.864505][ T253] ipv6_find_idev+0x102/0x170 [ 1639.864505][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1639.864505][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1639.864505][ T253] netlink_rcv_skb+0x130/0x360 [ 1639.864505][ T253] netlink_unicast+0x449/0x710 [ 1639.864505][ T253] netlink_sendmsg+0x723/0xbe0 [ 1639.864505][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1639.864505][ T253] ___sys_sendmsg+0xee/0x170 [ 1639.864505][ T253] __sys_sendmsg+0xcd/0x170 [ 1639.864505][ T253] do_syscall_64+0xc6/0x1e0 [ 1639.864505][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1639.864505][ T253] [ 1650.114353][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1650.114769][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1650.114769][ T253] dst_init+0x84/0x4a0 [ 1650.114769][ T253] dst_alloc+0x97/0x150 [ 1650.114769][ T253] ip6_dst_alloc+0x23/0x90 [ 1650.114769][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1650.114769][ T253] ip6_pol_route+0x56f/0x840 [ 1650.114769][ T253] fib6_rule_lookup+0x334/0x630 [ 1650.114769][ T253] ip6_route_output_flags+0x259/0x480 [ 1650.114769][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1650.114769][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1650.114769][ T253] netlink_rcv_skb+0x130/0x360 [ 1650.114769][ T253] netlink_unicast+0x449/0x710 [ 1650.114769][ T253] netlink_sendmsg+0x723/0xbe0 [ 1650.114769][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1650.114769][ T253] ___sys_sendmsg+0xee/0x170 [ 1650.114769][ T253] __sys_sendmsg+0xcd/0x170 [ 1650.114769][ T253] do_syscall_64+0xc6/0x1e0 [ 1650.114769][ T253] [ 1650.117009][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1650.117009][ T253] netdev_get_by_index+0x5e/0x80 [ 1650.117009][ T253] fib6_nh_init+0x3d8/0x1580 [ 1650.117009][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1650.117009][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1650.117009][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1650.117009][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1650.117009][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1650.117009][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1650.117009][ T253] addrconf_dad_begin+0x310/0x670 [ 1650.117009][ T253] addrconf_dad_work+0x10b/0xab0 [ 1650.117009][ T253] process_one_work+0x84d/0x18a0 [ 1650.117009][ T253] worker_thread+0x587/0xd30 [ 1650.117009][ T253] kthread+0x28a/0x350 [ 1650.117009][ T253] ret_from_fork+0x31/0x70 [ 1650.117009][ T253] ret_from_fork_asm+0x1a/0x30 [ 1650.117009][ T253] [ 1650.119151][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1650.119151][ T253] netdev_get_by_index+0x5e/0x80 [ 1650.119151][ T253] fib6_nh_init+0x3d8/0x1580 [ 1650.119151][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1650.119151][ T253] ip6_route_add+0x1c/0x140 [ 1650.119151][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1650.119151][ T253] inet6_addr_add+0x4f8/0xa40 [ 1650.119151][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1650.119151][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1650.119151][ T253] netlink_rcv_skb+0x130/0x360 [ 1650.119151][ T253] netlink_unicast+0x449/0x710 [ 1650.119151][ T253] netlink_sendmsg+0x723/0xbe0 [ 1650.119151][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1650.119151][ T253] ___sys_sendmsg+0xee/0x170 [ 1650.119151][ T253] __sys_sendmsg+0xcd/0x170 [ 1650.119151][ T253] do_syscall_64+0xc6/0x1e0 [ 1650.119151][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1650.119151][ T253] [ 1650.121383][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1650.121383][ T253] netdev_get_by_index+0x5e/0x80 [ 1650.121383][ T253] fib6_nh_init+0x3d8/0x1580 [ 1650.121383][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1650.121383][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1650.121383][ T253] ipv6_add_addr+0x411/0x2000 [ 1650.121383][ T253] inet6_addr_add+0x30e/0xa40 [ 1650.121383][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1650.121383][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1650.121383][ T253] netlink_rcv_skb+0x130/0x360 [ 1650.121383][ T253] netlink_unicast+0x449/0x710 [ 1650.121383][ T253] netlink_sendmsg+0x723/0xbe0 [ 1650.121383][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1650.121383][ T253] ___sys_sendmsg+0xee/0x170 [ 1650.121383][ T253] __sys_sendmsg+0xcd/0x170 [ 1650.121383][ T253] do_syscall_64+0xc6/0x1e0 [ 1650.121383][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1650.121383][ T253] [ 1650.123626][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1650.123626][ T253] netdev_get_by_index+0x5e/0x80 [ 1650.123626][ T253] fib6_nh_init+0x3d8/0x1580 [ 1650.123626][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1650.123626][ T253] ip6_route_add+0x1c/0x140 [ 1650.123626][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1650.123626][ T253] addrconf_add_dev+0xe2/0x170 [ 1650.123626][ T253] inet6_addr_add+0x12f/0xa40 [ 1650.123626][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1650.123626][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1650.123626][ T253] netlink_rcv_skb+0x130/0x360 [ 1650.123626][ T253] netlink_unicast+0x449/0x710 [ 1650.123626][ T253] netlink_sendmsg+0x723/0xbe0 [ 1650.123626][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1650.123626][ T253] ___sys_sendmsg+0xee/0x170 [ 1650.123626][ T253] __sys_sendmsg+0xcd/0x170 [ 1650.123626][ T253] do_syscall_64+0xc6/0x1e0 [ 1650.123626][ T253] [ 1650.125828][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1650.125828][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1650.125828][ T253] ipv6_find_idev+0x102/0x170 [ 1650.125828][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1650.125828][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1650.125828][ T253] netlink_rcv_skb+0x130/0x360 [ 1650.125828][ T253] netlink_unicast+0x449/0x710 [ 1650.125828][ T253] netlink_sendmsg+0x723/0xbe0 [ 1650.125828][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1650.125828][ T253] ___sys_sendmsg+0xee/0x170 [ 1650.125828][ T253] __sys_sendmsg+0xcd/0x170 [ 1650.125828][ T253] do_syscall_64+0xc6/0x1e0 [ 1650.125828][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1650.125828][ T253] [ 1650.127551][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1650.127551][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1650.127551][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1650.127551][ T253] ipv6_find_idev+0x102/0x170 [ 1650.127551][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1650.127551][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1650.127551][ T253] netlink_rcv_skb+0x130/0x360 [ 1650.127551][ T253] netlink_unicast+0x449/0x710 [ 1650.127551][ T253] netlink_sendmsg+0x723/0xbe0 [ 1650.127551][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1650.127551][ T253] ___sys_sendmsg+0xee/0x170 [ 1650.127551][ T253] __sys_sendmsg+0xcd/0x170 [ 1650.127551][ T253] do_syscall_64+0xc6/0x1e0 [ 1650.127551][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1650.127551][ T253] [ 1660.130327][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1660.130809][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1660.130809][ T253] dst_init+0x84/0x4a0 [ 1660.130809][ T253] dst_alloc+0x97/0x150 [ 1660.130809][ T253] ip6_dst_alloc+0x23/0x90 [ 1660.130809][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1660.130809][ T253] ip6_pol_route+0x56f/0x840 [ 1660.130809][ T253] fib6_rule_lookup+0x334/0x630 [ 1660.130809][ T253] ip6_route_output_flags+0x259/0x480 [ 1660.130809][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1660.130809][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1660.130809][ T253] netlink_rcv_skb+0x130/0x360 [ 1660.130809][ T253] netlink_unicast+0x449/0x710 [ 1660.130809][ T253] netlink_sendmsg+0x723/0xbe0 [ 1660.130809][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1660.130809][ T253] ___sys_sendmsg+0xee/0x170 [ 1660.130809][ T253] __sys_sendmsg+0xcd/0x170 [ 1660.130809][ T253] do_syscall_64+0xc6/0x1e0 [ 1660.130809][ T253] [ 1660.133138][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1660.133138][ T253] netdev_get_by_index+0x5e/0x80 [ 1660.133138][ T253] fib6_nh_init+0x3d8/0x1580 [ 1660.133138][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1660.133138][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1660.133138][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1660.133138][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1660.133138][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1660.133138][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1660.133138][ T253] addrconf_dad_begin+0x310/0x670 [ 1660.133138][ T253] addrconf_dad_work+0x10b/0xab0 [ 1660.133138][ T253] process_one_work+0x84d/0x18a0 [ 1660.133138][ T253] worker_thread+0x587/0xd30 [ 1660.133138][ T253] kthread+0x28a/0x350 [ 1660.133138][ T253] ret_from_fork+0x31/0x70 [ 1660.133138][ T253] ret_from_fork_asm+0x1a/0x30 [ 1660.133138][ T253] [ 1660.135490][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1660.135490][ T253] netdev_get_by_index+0x5e/0x80 [ 1660.135490][ T253] fib6_nh_init+0x3d8/0x1580 [ 1660.135490][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1660.135490][ T253] ip6_route_add+0x1c/0x140 [ 1660.135490][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1660.135490][ T253] inet6_addr_add+0x4f8/0xa40 [ 1660.135490][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1660.135490][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1660.135490][ T253] netlink_rcv_skb+0x130/0x360 [ 1660.135490][ T253] netlink_unicast+0x449/0x710 [ 1660.135490][ T253] netlink_sendmsg+0x723/0xbe0 [ 1660.135490][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1660.135490][ T253] ___sys_sendmsg+0xee/0x170 [ 1660.135490][ T253] __sys_sendmsg+0xcd/0x170 [ 1660.135490][ T253] do_syscall_64+0xc6/0x1e0 [ 1660.135490][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1660.135490][ T253] [ 1660.138439][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1660.138439][ T253] netdev_get_by_index+0x5e/0x80 [ 1660.138439][ T253] fib6_nh_init+0x3d8/0x1580 [ 1660.138439][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1660.138439][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1660.138439][ T253] ipv6_add_addr+0x411/0x2000 [ 1660.138439][ T253] inet6_addr_add+0x30e/0xa40 [ 1660.138439][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1660.138439][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1660.138439][ T253] netlink_rcv_skb+0x130/0x360 [ 1660.138439][ T253] netlink_unicast+0x449/0x710 [ 1660.138439][ T253] netlink_sendmsg+0x723/0xbe0 [ 1660.138439][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1660.138439][ T253] ___sys_sendmsg+0xee/0x170 [ 1660.138439][ T253] __sys_sendmsg+0xcd/0x170 [ 1660.138439][ T253] do_syscall_64+0xc6/0x1e0 [ 1660.138439][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1660.138439][ T253] [ 1660.140893][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1660.140893][ T253] netdev_get_by_index+0x5e/0x80 [ 1660.140893][ T253] fib6_nh_init+0x3d8/0x1580 [ 1660.140893][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1660.140893][ T253] ip6_route_add+0x1c/0x140 [ 1660.140893][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1660.140893][ T253] addrconf_add_dev+0xe2/0x170 [ 1660.140893][ T253] inet6_addr_add+0x12f/0xa40 [ 1660.140893][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1660.140893][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1660.140893][ T253] netlink_rcv_skb+0x130/0x360 [ 1660.140893][ T253] netlink_unicast+0x449/0x710 [ 1660.140893][ T253] netlink_sendmsg+0x723/0xbe0 [ 1660.140893][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1660.140893][ T253] ___sys_sendmsg+0xee/0x170 [ 1660.140893][ T253] __sys_sendmsg+0xcd/0x170 [ 1660.140893][ T253] do_syscall_64+0xc6/0x1e0 [ 1660.140893][ T253] [ 1660.143292][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1660.143292][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1660.143292][ T253] ipv6_find_idev+0x102/0x170 [ 1660.143292][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1660.143292][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1660.143292][ T253] netlink_rcv_skb+0x130/0x360 [ 1660.143292][ T253] netlink_unicast+0x449/0x710 [ 1660.143292][ T253] netlink_sendmsg+0x723/0xbe0 [ 1660.143292][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1660.143292][ T253] ___sys_sendmsg+0xee/0x170 [ 1660.143292][ T253] __sys_sendmsg+0xcd/0x170 [ 1660.143292][ T253] do_syscall_64+0xc6/0x1e0 [ 1660.143292][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1660.143292][ T253] [ 1660.145176][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1660.145176][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1660.145176][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1660.145176][ T253] ipv6_find_idev+0x102/0x170 [ 1660.145176][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1660.145176][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1660.145176][ T253] netlink_rcv_skb+0x130/0x360 [ 1660.145176][ T253] netlink_unicast+0x449/0x710 [ 1660.145176][ T253] netlink_sendmsg+0x723/0xbe0 [ 1660.145176][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1660.145176][ T253] ___sys_sendmsg+0xee/0x170 [ 1660.145176][ T253] __sys_sendmsg+0xcd/0x170 [ 1660.145176][ T253] do_syscall_64+0xc6/0x1e0 [ 1660.145176][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1660.145176][ T253] [ 1670.386305][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1670.386727][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1670.386727][ T253] dst_init+0x84/0x4a0 [ 1670.386727][ T253] dst_alloc+0x97/0x150 [ 1670.386727][ T253] ip6_dst_alloc+0x23/0x90 [ 1670.386727][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1670.386727][ T253] ip6_pol_route+0x56f/0x840 [ 1670.386727][ T253] fib6_rule_lookup+0x334/0x630 [ 1670.386727][ T253] ip6_route_output_flags+0x259/0x480 [ 1670.386727][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1670.386727][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1670.386727][ T253] netlink_rcv_skb+0x130/0x360 [ 1670.386727][ T253] netlink_unicast+0x449/0x710 [ 1670.386727][ T253] netlink_sendmsg+0x723/0xbe0 [ 1670.386727][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1670.386727][ T253] ___sys_sendmsg+0xee/0x170 [ 1670.386727][ T253] __sys_sendmsg+0xcd/0x170 [ 1670.386727][ T253] do_syscall_64+0xc6/0x1e0 [ 1670.386727][ T253] [ 1670.389114][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1670.389114][ T253] netdev_get_by_index+0x5e/0x80 [ 1670.389114][ T253] fib6_nh_init+0x3d8/0x1580 [ 1670.389114][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1670.389114][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1670.389114][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1670.389114][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1670.389114][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1670.389114][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1670.389114][ T253] addrconf_dad_begin+0x310/0x670 [ 1670.389114][ T253] addrconf_dad_work+0x10b/0xab0 [ 1670.389114][ T253] process_one_work+0x84d/0x18a0 [ 1670.389114][ T253] worker_thread+0x587/0xd30 [ 1670.389114][ T253] kthread+0x28a/0x350 [ 1670.389114][ T253] ret_from_fork+0x31/0x70 [ 1670.389114][ T253] ret_from_fork_asm+0x1a/0x30 [ 1670.389114][ T253] [ 1670.391458][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1670.391458][ T253] netdev_get_by_index+0x5e/0x80 [ 1670.391458][ T253] fib6_nh_init+0x3d8/0x1580 [ 1670.391458][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1670.391458][ T253] ip6_route_add+0x1c/0x140 [ 1670.391458][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1670.391458][ T253] inet6_addr_add+0x4f8/0xa40 [ 1670.391458][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1670.391458][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1670.391458][ T253] netlink_rcv_skb+0x130/0x360 [ 1670.391458][ T253] netlink_unicast+0x449/0x710 [ 1670.391458][ T253] netlink_sendmsg+0x723/0xbe0 [ 1670.391458][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1670.391458][ T253] ___sys_sendmsg+0xee/0x170 [ 1670.391458][ T253] __sys_sendmsg+0xcd/0x170 [ 1670.391458][ T253] do_syscall_64+0xc6/0x1e0 [ 1670.391458][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1670.391458][ T253] [ 1670.393892][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1670.393892][ T253] netdev_get_by_index+0x5e/0x80 [ 1670.393892][ T253] fib6_nh_init+0x3d8/0x1580 [ 1670.393892][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1670.393892][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1670.393892][ T253] ipv6_add_addr+0x411/0x2000 [ 1670.393892][ T253] inet6_addr_add+0x30e/0xa40 [ 1670.393892][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1670.393892][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1670.393892][ T253] netlink_rcv_skb+0x130/0x360 [ 1670.393892][ T253] netlink_unicast+0x449/0x710 [ 1670.393892][ T253] netlink_sendmsg+0x723/0xbe0 [ 1670.393892][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1670.393892][ T253] ___sys_sendmsg+0xee/0x170 [ 1670.393892][ T253] __sys_sendmsg+0xcd/0x170 [ 1670.393892][ T253] do_syscall_64+0xc6/0x1e0 [ 1670.393892][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1670.393892][ T253] [ 1670.396326][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1670.396326][ T253] netdev_get_by_index+0x5e/0x80 [ 1670.396326][ T253] fib6_nh_init+0x3d8/0x1580 [ 1670.396326][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1670.396326][ T253] ip6_route_add+0x1c/0x140 [ 1670.396326][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1670.396326][ T253] addrconf_add_dev+0xe2/0x170 [ 1670.396326][ T253] inet6_addr_add+0x12f/0xa40 [ 1670.396326][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1670.396326][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1670.396326][ T253] netlink_rcv_skb+0x130/0x360 [ 1670.396326][ T253] netlink_unicast+0x449/0x710 [ 1670.396326][ T253] netlink_sendmsg+0x723/0xbe0 [ 1670.396326][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1670.396326][ T253] ___sys_sendmsg+0xee/0x170 [ 1670.396326][ T253] __sys_sendmsg+0xcd/0x170 [ 1670.396326][ T253] do_syscall_64+0xc6/0x1e0 [ 1670.396326][ T253] [ 1670.398725][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1670.398725][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1670.398725][ T253] ipv6_find_idev+0x102/0x170 [ 1670.398725][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1670.398725][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1670.398725][ T253] netlink_rcv_skb+0x130/0x360 [ 1670.398725][ T253] netlink_unicast+0x449/0x710 [ 1670.398725][ T253] netlink_sendmsg+0x723/0xbe0 [ 1670.398725][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1670.398725][ T253] ___sys_sendmsg+0xee/0x170 [ 1670.398725][ T253] __sys_sendmsg+0xcd/0x170 [ 1670.398725][ T253] do_syscall_64+0xc6/0x1e0 [ 1670.398725][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1670.398725][ T253] [ 1670.400602][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1670.400602][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1670.400602][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1670.400602][ T253] ipv6_find_idev+0x102/0x170 [ 1670.400602][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1670.400602][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1670.400602][ T253] netlink_rcv_skb+0x130/0x360 [ 1670.400602][ T253] netlink_unicast+0x449/0x710 [ 1670.400602][ T253] netlink_sendmsg+0x723/0xbe0 [ 1670.400602][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1670.400602][ T253] ___sys_sendmsg+0xee/0x170 [ 1670.400602][ T253] __sys_sendmsg+0xcd/0x170 [ 1670.400602][ T253] do_syscall_64+0xc6/0x1e0 [ 1670.400602][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1670.400602][ T253] [ 1680.642303][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1680.642729][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1680.642729][ T253] dst_init+0x84/0x4a0 [ 1680.642729][ T253] dst_alloc+0x97/0x150 [ 1680.642729][ T253] ip6_dst_alloc+0x23/0x90 [ 1680.642729][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1680.642729][ T253] ip6_pol_route+0x56f/0x840 [ 1680.642729][ T253] fib6_rule_lookup+0x334/0x630 [ 1680.642729][ T253] ip6_route_output_flags+0x259/0x480 [ 1680.642729][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1680.642729][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1680.642729][ T253] netlink_rcv_skb+0x130/0x360 [ 1680.642729][ T253] netlink_unicast+0x449/0x710 [ 1680.642729][ T253] netlink_sendmsg+0x723/0xbe0 [ 1680.642729][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1680.642729][ T253] ___sys_sendmsg+0xee/0x170 [ 1680.642729][ T253] __sys_sendmsg+0xcd/0x170 [ 1680.642729][ T253] do_syscall_64+0xc6/0x1e0 [ 1680.642729][ T253] [ 1680.645130][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1680.645130][ T253] netdev_get_by_index+0x5e/0x80 [ 1680.645130][ T253] fib6_nh_init+0x3d8/0x1580 [ 1680.645130][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1680.645130][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1680.645130][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1680.645130][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1680.645130][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1680.645130][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1680.645130][ T253] addrconf_dad_begin+0x310/0x670 [ 1680.645130][ T253] addrconf_dad_work+0x10b/0xab0 [ 1680.645130][ T253] process_one_work+0x84d/0x18a0 [ 1680.645130][ T253] worker_thread+0x587/0xd30 [ 1680.645130][ T253] kthread+0x28a/0x350 [ 1680.645130][ T253] ret_from_fork+0x31/0x70 [ 1680.645130][ T253] ret_from_fork_asm+0x1a/0x30 [ 1680.645130][ T253] [ 1680.647465][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1680.647465][ T253] netdev_get_by_index+0x5e/0x80 [ 1680.647465][ T253] fib6_nh_init+0x3d8/0x1580 [ 1680.647465][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1680.647465][ T253] ip6_route_add+0x1c/0x140 [ 1680.647465][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1680.647465][ T253] inet6_addr_add+0x4f8/0xa40 [ 1680.647465][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1680.647465][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1680.647465][ T253] netlink_rcv_skb+0x130/0x360 [ 1680.647465][ T253] netlink_unicast+0x449/0x710 [ 1680.647465][ T253] netlink_sendmsg+0x723/0xbe0 [ 1680.647465][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1680.647465][ T253] ___sys_sendmsg+0xee/0x170 [ 1680.647465][ T253] __sys_sendmsg+0xcd/0x170 [ 1680.647465][ T253] do_syscall_64+0xc6/0x1e0 [ 1680.647465][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1680.647465][ T253] [ 1680.649929][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1680.649929][ T253] netdev_get_by_index+0x5e/0x80 [ 1680.649929][ T253] fib6_nh_init+0x3d8/0x1580 [ 1680.649929][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1680.649929][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1680.649929][ T253] ipv6_add_addr+0x411/0x2000 [ 1680.649929][ T253] inet6_addr_add+0x30e/0xa40 [ 1680.649929][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1680.649929][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1680.649929][ T253] netlink_rcv_skb+0x130/0x360 [ 1680.649929][ T253] netlink_unicast+0x449/0x710 [ 1680.649929][ T253] netlink_sendmsg+0x723/0xbe0 [ 1680.649929][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1680.649929][ T253] ___sys_sendmsg+0xee/0x170 [ 1680.649929][ T253] __sys_sendmsg+0xcd/0x170 [ 1680.649929][ T253] do_syscall_64+0xc6/0x1e0 [ 1680.649929][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1680.649929][ T253] [ 1680.652404][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1680.652404][ T253] netdev_get_by_index+0x5e/0x80 [ 1680.652404][ T253] fib6_nh_init+0x3d8/0x1580 [ 1680.652404][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1680.652404][ T253] ip6_route_add+0x1c/0x140 [ 1680.652404][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1680.652404][ T253] addrconf_add_dev+0xe2/0x170 [ 1680.652404][ T253] inet6_addr_add+0x12f/0xa40 [ 1680.652404][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1680.652404][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1680.652404][ T253] netlink_rcv_skb+0x130/0x360 [ 1680.652404][ T253] netlink_unicast+0x449/0x710 [ 1680.652404][ T253] netlink_sendmsg+0x723/0xbe0 [ 1680.652404][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1680.652404][ T253] ___sys_sendmsg+0xee/0x170 [ 1680.652404][ T253] __sys_sendmsg+0xcd/0x170 [ 1680.652404][ T253] do_syscall_64+0xc6/0x1e0 [ 1680.652404][ T253] [ 1680.654822][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1680.654822][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1680.654822][ T253] ipv6_find_idev+0x102/0x170 [ 1680.654822][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1680.654822][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1680.654822][ T253] netlink_rcv_skb+0x130/0x360 [ 1680.654822][ T253] netlink_unicast+0x449/0x710 [ 1680.654822][ T253] netlink_sendmsg+0x723/0xbe0 [ 1680.654822][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1680.654822][ T253] ___sys_sendmsg+0xee/0x170 [ 1680.654822][ T253] __sys_sendmsg+0xcd/0x170 [ 1680.654822][ T253] do_syscall_64+0xc6/0x1e0 [ 1680.654822][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1680.654822][ T253] [ 1680.656705][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1680.656705][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1680.656705][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1680.656705][ T253] ipv6_find_idev+0x102/0x170 [ 1680.656705][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1680.656705][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1680.656705][ T253] netlink_rcv_skb+0x130/0x360 [ 1680.656705][ T253] netlink_unicast+0x449/0x710 [ 1680.656705][ T253] netlink_sendmsg+0x723/0xbe0 [ 1680.656705][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1680.656705][ T253] ___sys_sendmsg+0xee/0x170 [ 1680.656705][ T253] __sys_sendmsg+0xcd/0x170 [ 1680.656705][ T253] do_syscall_64+0xc6/0x1e0 [ 1680.656705][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1680.656705][ T253] [ 1690.914306][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1690.914790][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1690.914790][ T253] dst_init+0x84/0x4a0 [ 1690.914790][ T253] dst_alloc+0x97/0x150 [ 1690.914790][ T253] ip6_dst_alloc+0x23/0x90 [ 1690.914790][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1690.914790][ T253] ip6_pol_route+0x56f/0x840 [ 1690.914790][ T253] fib6_rule_lookup+0x334/0x630 [ 1690.914790][ T253] ip6_route_output_flags+0x259/0x480 [ 1690.914790][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1690.914790][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1690.914790][ T253] netlink_rcv_skb+0x130/0x360 [ 1690.914790][ T253] netlink_unicast+0x449/0x710 [ 1690.914790][ T253] netlink_sendmsg+0x723/0xbe0 [ 1690.914790][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1690.914790][ T253] ___sys_sendmsg+0xee/0x170 [ 1690.914790][ T253] __sys_sendmsg+0xcd/0x170 [ 1690.914790][ T253] do_syscall_64+0xc6/0x1e0 [ 1690.914790][ T253] [ 1690.917177][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1690.917177][ T253] netdev_get_by_index+0x5e/0x80 [ 1690.917177][ T253] fib6_nh_init+0x3d8/0x1580 [ 1690.917177][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1690.917177][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1690.917177][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1690.917177][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1690.917177][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1690.917177][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1690.917177][ T253] addrconf_dad_begin+0x310/0x670 [ 1690.917177][ T253] addrconf_dad_work+0x10b/0xab0 [ 1690.917177][ T253] process_one_work+0x84d/0x18a0 [ 1690.917177][ T253] worker_thread+0x587/0xd30 [ 1690.917177][ T253] kthread+0x28a/0x350 [ 1690.917177][ T253] ret_from_fork+0x31/0x70 [ 1690.917177][ T253] ret_from_fork_asm+0x1a/0x30 [ 1690.917177][ T253] [ 1690.919522][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1690.919522][ T253] netdev_get_by_index+0x5e/0x80 [ 1690.919522][ T253] fib6_nh_init+0x3d8/0x1580 [ 1690.919522][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1690.919522][ T253] ip6_route_add+0x1c/0x140 [ 1690.919522][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1690.919522][ T253] inet6_addr_add+0x4f8/0xa40 [ 1690.919522][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1690.919522][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1690.919522][ T253] netlink_rcv_skb+0x130/0x360 [ 1690.919522][ T253] netlink_unicast+0x449/0x710 [ 1690.919522][ T253] netlink_sendmsg+0x723/0xbe0 [ 1690.919522][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1690.919522][ T253] ___sys_sendmsg+0xee/0x170 [ 1690.919522][ T253] __sys_sendmsg+0xcd/0x170 [ 1690.919522][ T253] do_syscall_64+0xc6/0x1e0 [ 1690.919522][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1690.919522][ T253] [ 1690.921970][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1690.921970][ T253] netdev_get_by_index+0x5e/0x80 [ 1690.921970][ T253] fib6_nh_init+0x3d8/0x1580 [ 1690.921970][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1690.921970][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1690.921970][ T253] ipv6_add_addr+0x411/0x2000 [ 1690.921970][ T253] inet6_addr_add+0x30e/0xa40 [ 1690.921970][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1690.921970][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1690.921970][ T253] netlink_rcv_skb+0x130/0x360 [ 1690.921970][ T253] netlink_unicast+0x449/0x710 [ 1690.921970][ T253] netlink_sendmsg+0x723/0xbe0 [ 1690.921970][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1690.921970][ T253] ___sys_sendmsg+0xee/0x170 [ 1690.921970][ T253] __sys_sendmsg+0xcd/0x170 [ 1690.921970][ T253] do_syscall_64+0xc6/0x1e0 [ 1690.921970][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1690.921970][ T253] [ 1690.924413][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1690.924413][ T253] netdev_get_by_index+0x5e/0x80 [ 1690.924413][ T253] fib6_nh_init+0x3d8/0x1580 [ 1690.924413][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1690.924413][ T253] ip6_route_add+0x1c/0x140 [ 1690.924413][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1690.924413][ T253] addrconf_add_dev+0xe2/0x170 [ 1690.924413][ T253] inet6_addr_add+0x12f/0xa40 [ 1690.924413][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1690.924413][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1690.924413][ T253] netlink_rcv_skb+0x130/0x360 [ 1690.924413][ T253] netlink_unicast+0x449/0x710 [ 1690.924413][ T253] netlink_sendmsg+0x723/0xbe0 [ 1690.924413][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1690.924413][ T253] ___sys_sendmsg+0xee/0x170 [ 1690.924413][ T253] __sys_sendmsg+0xcd/0x170 [ 1690.924413][ T253] do_syscall_64+0xc6/0x1e0 [ 1690.924413][ T253] [ 1690.926810][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1690.926810][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1690.926810][ T253] ipv6_find_idev+0x102/0x170 [ 1690.926810][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1690.926810][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1690.926810][ T253] netlink_rcv_skb+0x130/0x360 [ 1690.926810][ T253] netlink_unicast+0x449/0x710 [ 1690.926810][ T253] netlink_sendmsg+0x723/0xbe0 [ 1690.926810][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1690.926810][ T253] ___sys_sendmsg+0xee/0x170 [ 1690.926810][ T253] __sys_sendmsg+0xcd/0x170 [ 1690.926810][ T253] do_syscall_64+0xc6/0x1e0 [ 1690.926810][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1690.926810][ T253] [ 1690.928692][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1690.928692][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1690.928692][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1690.928692][ T253] ipv6_find_idev+0x102/0x170 [ 1690.928692][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1690.928692][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1690.928692][ T253] netlink_rcv_skb+0x130/0x360 [ 1690.928692][ T253] netlink_unicast+0x449/0x710 [ 1690.928692][ T253] netlink_sendmsg+0x723/0xbe0 [ 1690.928692][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1690.928692][ T253] ___sys_sendmsg+0xee/0x170 [ 1690.928692][ T253] __sys_sendmsg+0xcd/0x170 [ 1690.928692][ T253] do_syscall_64+0xc6/0x1e0 [ 1690.928692][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1690.928692][ T253] [ 1701.170333][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1701.170842][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1701.170842][ T253] dst_init+0x84/0x4a0 [ 1701.170842][ T253] dst_alloc+0x97/0x150 [ 1701.170842][ T253] ip6_dst_alloc+0x23/0x90 [ 1701.170842][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1701.170842][ T253] ip6_pol_route+0x56f/0x840 [ 1701.170842][ T253] fib6_rule_lookup+0x334/0x630 [ 1701.170842][ T253] ip6_route_output_flags+0x259/0x480 [ 1701.170842][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1701.170842][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1701.170842][ T253] netlink_rcv_skb+0x130/0x360 [ 1701.170842][ T253] netlink_unicast+0x449/0x710 [ 1701.170842][ T253] netlink_sendmsg+0x723/0xbe0 [ 1701.170842][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1701.170842][ T253] ___sys_sendmsg+0xee/0x170 [ 1701.170842][ T253] __sys_sendmsg+0xcd/0x170 [ 1701.170842][ T253] do_syscall_64+0xc6/0x1e0 [ 1701.170842][ T253] [ 1701.173495][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1701.173495][ T253] netdev_get_by_index+0x5e/0x80 [ 1701.173495][ T253] fib6_nh_init+0x3d8/0x1580 [ 1701.173495][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1701.173495][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1701.173495][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1701.173495][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1701.173495][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1701.173495][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1701.173495][ T253] addrconf_dad_begin+0x310/0x670 [ 1701.173495][ T253] addrconf_dad_work+0x10b/0xab0 [ 1701.173495][ T253] process_one_work+0x84d/0x18a0 [ 1701.173495][ T253] worker_thread+0x587/0xd30 [ 1701.173495][ T253] kthread+0x28a/0x350 [ 1701.173495][ T253] ret_from_fork+0x31/0x70 [ 1701.173495][ T253] ret_from_fork_asm+0x1a/0x30 [ 1701.173495][ T253] [ 1701.176072][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1701.176072][ T253] netdev_get_by_index+0x5e/0x80 [ 1701.176072][ T253] fib6_nh_init+0x3d8/0x1580 [ 1701.176072][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1701.176072][ T253] ip6_route_add+0x1c/0x140 [ 1701.176072][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1701.176072][ T253] inet6_addr_add+0x4f8/0xa40 [ 1701.176072][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1701.176072][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1701.176072][ T253] netlink_rcv_skb+0x130/0x360 [ 1701.176072][ T253] netlink_unicast+0x449/0x710 [ 1701.176072][ T253] netlink_sendmsg+0x723/0xbe0 [ 1701.176072][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1701.176072][ T253] ___sys_sendmsg+0xee/0x170 [ 1701.176072][ T253] __sys_sendmsg+0xcd/0x170 [ 1701.176072][ T253] do_syscall_64+0xc6/0x1e0 [ 1701.176072][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1701.176072][ T253] [ 1701.178761][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1701.178761][ T253] netdev_get_by_index+0x5e/0x80 [ 1701.178761][ T253] fib6_nh_init+0x3d8/0x1580 [ 1701.178761][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1701.178761][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1701.178761][ T253] ipv6_add_addr+0x411/0x2000 [ 1701.178761][ T253] inet6_addr_add+0x30e/0xa40 [ 1701.178761][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1701.178761][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1701.178761][ T253] netlink_rcv_skb+0x130/0x360 [ 1701.178761][ T253] netlink_unicast+0x449/0x710 [ 1701.178761][ T253] netlink_sendmsg+0x723/0xbe0 [ 1701.178761][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1701.178761][ T253] ___sys_sendmsg+0xee/0x170 [ 1701.178761][ T253] __sys_sendmsg+0xcd/0x170 [ 1701.178761][ T253] do_syscall_64+0xc6/0x1e0 [ 1701.178761][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1701.178761][ T253] [ 1701.181464][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1701.181464][ T253] netdev_get_by_index+0x5e/0x80 [ 1701.181464][ T253] fib6_nh_init+0x3d8/0x1580 [ 1701.181464][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1701.181464][ T253] ip6_route_add+0x1c/0x140 [ 1701.181464][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1701.181464][ T253] addrconf_add_dev+0xe2/0x170 [ 1701.181464][ T253] inet6_addr_add+0x12f/0xa40 [ 1701.181464][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1701.181464][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1701.181464][ T253] netlink_rcv_skb+0x130/0x360 [ 1701.181464][ T253] netlink_unicast+0x449/0x710 [ 1701.181464][ T253] netlink_sendmsg+0x723/0xbe0 [ 1701.181464][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1701.181464][ T253] ___sys_sendmsg+0xee/0x170 [ 1701.181464][ T253] __sys_sendmsg+0xcd/0x170 [ 1701.181464][ T253] do_syscall_64+0xc6/0x1e0 [ 1701.181464][ T253] [ 1701.184112][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1701.184112][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1701.184112][ T253] ipv6_find_idev+0x102/0x170 [ 1701.184112][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1701.184112][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1701.184112][ T253] netlink_rcv_skb+0x130/0x360 [ 1701.184112][ T253] netlink_unicast+0x449/0x710 [ 1701.184112][ T253] netlink_sendmsg+0x723/0xbe0 [ 1701.184112][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1701.184112][ T253] ___sys_sendmsg+0xee/0x170 [ 1701.184112][ T253] __sys_sendmsg+0xcd/0x170 [ 1701.184112][ T253] do_syscall_64+0xc6/0x1e0 [ 1701.184112][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1701.184112][ T253] [ 1701.186180][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1701.186180][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1701.186180][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1701.186180][ T253] ipv6_find_idev+0x102/0x170 [ 1701.186180][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1701.186180][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1701.186180][ T253] netlink_rcv_skb+0x130/0x360 [ 1701.186180][ T253] netlink_unicast+0x449/0x710 [ 1701.186180][ T253] netlink_sendmsg+0x723/0xbe0 [ 1701.186180][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1701.186180][ T253] ___sys_sendmsg+0xee/0x170 [ 1701.186180][ T253] __sys_sendmsg+0xcd/0x170 [ 1701.186180][ T253] do_syscall_64+0xc6/0x1e0 [ 1701.186180][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1701.186180][ T253] [ 1711.266293][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1711.266806][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1711.266806][ T253] dst_init+0x84/0x4a0 [ 1711.266806][ T253] dst_alloc+0x97/0x150 [ 1711.266806][ T253] ip6_dst_alloc+0x23/0x90 [ 1711.266806][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1711.266806][ T253] ip6_pol_route+0x56f/0x840 [ 1711.266806][ T253] fib6_rule_lookup+0x334/0x630 [ 1711.266806][ T253] ip6_route_output_flags+0x259/0x480 [ 1711.266806][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1711.266806][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1711.266806][ T253] netlink_rcv_skb+0x130/0x360 [ 1711.266806][ T253] netlink_unicast+0x449/0x710 [ 1711.266806][ T253] netlink_sendmsg+0x723/0xbe0 [ 1711.266806][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1711.266806][ T253] ___sys_sendmsg+0xee/0x170 [ 1711.266806][ T253] __sys_sendmsg+0xcd/0x170 [ 1711.266806][ T253] do_syscall_64+0xc6/0x1e0 [ 1711.266806][ T253] [ 1711.269427][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1711.269427][ T253] netdev_get_by_index+0x5e/0x80 [ 1711.269427][ T253] fib6_nh_init+0x3d8/0x1580 [ 1711.269427][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1711.269427][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1711.269427][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1711.269427][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1711.269427][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1711.269427][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1711.269427][ T253] addrconf_dad_begin+0x310/0x670 [ 1711.269427][ T253] addrconf_dad_work+0x10b/0xab0 [ 1711.269427][ T253] process_one_work+0x84d/0x18a0 [ 1711.269427][ T253] worker_thread+0x587/0xd30 [ 1711.269427][ T253] kthread+0x28a/0x350 [ 1711.269427][ T253] ret_from_fork+0x31/0x70 [ 1711.269427][ T253] ret_from_fork_asm+0x1a/0x30 [ 1711.269427][ T253] [ 1711.272032][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1711.272032][ T253] netdev_get_by_index+0x5e/0x80 [ 1711.272032][ T253] fib6_nh_init+0x3d8/0x1580 [ 1711.272032][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1711.272032][ T253] ip6_route_add+0x1c/0x140 [ 1711.272032][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1711.272032][ T253] inet6_addr_add+0x4f8/0xa40 [ 1711.272032][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1711.272032][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1711.272032][ T253] netlink_rcv_skb+0x130/0x360 [ 1711.272032][ T253] netlink_unicast+0x449/0x710 [ 1711.272032][ T253] netlink_sendmsg+0x723/0xbe0 [ 1711.272032][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1711.272032][ T253] ___sys_sendmsg+0xee/0x170 [ 1711.272032][ T253] __sys_sendmsg+0xcd/0x170 [ 1711.272032][ T253] do_syscall_64+0xc6/0x1e0 [ 1711.272032][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1711.272032][ T253] [ 1711.274718][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1711.274718][ T253] netdev_get_by_index+0x5e/0x80 [ 1711.274718][ T253] fib6_nh_init+0x3d8/0x1580 [ 1711.274718][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1711.274718][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1711.274718][ T253] ipv6_add_addr+0x411/0x2000 [ 1711.274718][ T253] inet6_addr_add+0x30e/0xa40 [ 1711.274718][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1711.274718][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1711.274718][ T253] netlink_rcv_skb+0x130/0x360 [ 1711.274718][ T253] netlink_unicast+0x449/0x710 [ 1711.274718][ T253] netlink_sendmsg+0x723/0xbe0 [ 1711.274718][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1711.274718][ T253] ___sys_sendmsg+0xee/0x170 [ 1711.274718][ T253] __sys_sendmsg+0xcd/0x170 [ 1711.274718][ T253] do_syscall_64+0xc6/0x1e0 [ 1711.274718][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1711.274718][ T253] [ 1711.277409][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1711.277409][ T253] netdev_get_by_index+0x5e/0x80 [ 1711.277409][ T253] fib6_nh_init+0x3d8/0x1580 [ 1711.277409][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1711.277409][ T253] ip6_route_add+0x1c/0x140 [ 1711.277409][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1711.277409][ T253] addrconf_add_dev+0xe2/0x170 [ 1711.277409][ T253] inet6_addr_add+0x12f/0xa40 [ 1711.277409][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1711.277409][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1711.277409][ T253] netlink_rcv_skb+0x130/0x360 [ 1711.277409][ T253] netlink_unicast+0x449/0x710 [ 1711.277409][ T253] netlink_sendmsg+0x723/0xbe0 [ 1711.277409][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1711.277409][ T253] ___sys_sendmsg+0xee/0x170 [ 1711.277409][ T253] __sys_sendmsg+0xcd/0x170 [ 1711.277409][ T253] do_syscall_64+0xc6/0x1e0 [ 1711.277409][ T253] [ 1711.280053][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1711.280053][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1711.280053][ T253] ipv6_find_idev+0x102/0x170 [ 1711.280053][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1711.280053][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1711.280053][ T253] netlink_rcv_skb+0x130/0x360 [ 1711.280053][ T253] netlink_unicast+0x449/0x710 [ 1711.280053][ T253] netlink_sendmsg+0x723/0xbe0 [ 1711.280053][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1711.280053][ T253] ___sys_sendmsg+0xee/0x170 [ 1711.280053][ T253] __sys_sendmsg+0xcd/0x170 [ 1711.280053][ T253] do_syscall_64+0xc6/0x1e0 [ 1711.280053][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1711.280053][ T253] [ 1711.282139][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1711.282139][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1711.282139][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1711.282139][ T253] ipv6_find_idev+0x102/0x170 [ 1711.282139][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1711.282139][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1711.282139][ T253] netlink_rcv_skb+0x130/0x360 [ 1711.282139][ T253] netlink_unicast+0x449/0x710 [ 1711.282139][ T253] netlink_sendmsg+0x723/0xbe0 [ 1711.282139][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1711.282139][ T253] ___sys_sendmsg+0xee/0x170 [ 1711.282139][ T253] __sys_sendmsg+0xcd/0x170 [ 1711.282139][ T253] do_syscall_64+0xc6/0x1e0 [ 1711.282139][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1711.282139][ T253] [ 1721.498241][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1721.498726][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1721.498726][ T253] dst_init+0x84/0x4a0 [ 1721.498726][ T253] dst_alloc+0x97/0x150 [ 1721.498726][ T253] ip6_dst_alloc+0x23/0x90 [ 1721.498726][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1721.498726][ T253] ip6_pol_route+0x56f/0x840 [ 1721.498726][ T253] fib6_rule_lookup+0x334/0x630 [ 1721.498726][ T253] ip6_route_output_flags+0x259/0x480 [ 1721.498726][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1721.498726][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1721.498726][ T253] netlink_rcv_skb+0x130/0x360 [ 1721.498726][ T253] netlink_unicast+0x449/0x710 [ 1721.498726][ T253] netlink_sendmsg+0x723/0xbe0 [ 1721.498726][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1721.498726][ T253] ___sys_sendmsg+0xee/0x170 [ 1721.498726][ T253] __sys_sendmsg+0xcd/0x170 [ 1721.498726][ T253] do_syscall_64+0xc6/0x1e0 [ 1721.498726][ T253] [ 1721.501383][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1721.501383][ T253] netdev_get_by_index+0x5e/0x80 [ 1721.501383][ T253] fib6_nh_init+0x3d8/0x1580 [ 1721.501383][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1721.501383][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1721.501383][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1721.501383][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1721.501383][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1721.501383][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1721.501383][ T253] addrconf_dad_begin+0x310/0x670 [ 1721.501383][ T253] addrconf_dad_work+0x10b/0xab0 [ 1721.501383][ T253] process_one_work+0x84d/0x18a0 [ 1721.501383][ T253] worker_thread+0x587/0xd30 [ 1721.501383][ T253] kthread+0x28a/0x350 [ 1721.501383][ T253] ret_from_fork+0x31/0x70 [ 1721.501383][ T253] ret_from_fork_asm+0x1a/0x30 [ 1721.501383][ T253] [ 1721.503971][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1721.503971][ T253] netdev_get_by_index+0x5e/0x80 [ 1721.503971][ T253] fib6_nh_init+0x3d8/0x1580 [ 1721.503971][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1721.503971][ T253] ip6_route_add+0x1c/0x140 [ 1721.503971][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1721.503971][ T253] inet6_addr_add+0x4f8/0xa40 [ 1721.503971][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1721.503971][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1721.503971][ T253] netlink_rcv_skb+0x130/0x360 [ 1721.503971][ T253] netlink_unicast+0x449/0x710 [ 1721.503971][ T253] netlink_sendmsg+0x723/0xbe0 [ 1721.503971][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1721.503971][ T253] ___sys_sendmsg+0xee/0x170 [ 1721.503971][ T253] __sys_sendmsg+0xcd/0x170 [ 1721.503971][ T253] do_syscall_64+0xc6/0x1e0 [ 1721.503971][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1721.503971][ T253] [ 1721.506948][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1721.506948][ T253] netdev_get_by_index+0x5e/0x80 [ 1721.506948][ T253] fib6_nh_init+0x3d8/0x1580 [ 1721.506948][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1721.506948][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1721.506948][ T253] ipv6_add_addr+0x411/0x2000 [ 1721.506948][ T253] inet6_addr_add+0x30e/0xa40 [ 1721.506948][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1721.506948][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1721.506948][ T253] netlink_rcv_skb+0x130/0x360 [ 1721.506948][ T253] netlink_unicast+0x449/0x710 [ 1721.506948][ T253] netlink_sendmsg+0x723/0xbe0 [ 1721.506948][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1721.506948][ T253] ___sys_sendmsg+0xee/0x170 [ 1721.506948][ T253] __sys_sendmsg+0xcd/0x170 [ 1721.506948][ T253] do_syscall_64+0xc6/0x1e0 [ 1721.506948][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1721.506948][ T253] [ 1721.509658][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1721.509658][ T253] netdev_get_by_index+0x5e/0x80 [ 1721.509658][ T253] fib6_nh_init+0x3d8/0x1580 [ 1721.509658][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1721.509658][ T253] ip6_route_add+0x1c/0x140 [ 1721.509658][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1721.509658][ T253] addrconf_add_dev+0xe2/0x170 [ 1721.509658][ T253] inet6_addr_add+0x12f/0xa40 [ 1721.509658][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1721.509658][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1721.509658][ T253] netlink_rcv_skb+0x130/0x360 [ 1721.509658][ T253] netlink_unicast+0x449/0x710 [ 1721.509658][ T253] netlink_sendmsg+0x723/0xbe0 [ 1721.509658][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1721.509658][ T253] ___sys_sendmsg+0xee/0x170 [ 1721.509658][ T253] __sys_sendmsg+0xcd/0x170 [ 1721.509658][ T253] do_syscall_64+0xc6/0x1e0 [ 1721.509658][ T253] [ 1721.512324][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1721.512324][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1721.512324][ T253] ipv6_find_idev+0x102/0x170 [ 1721.512324][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1721.512324][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1721.512324][ T253] netlink_rcv_skb+0x130/0x360 [ 1721.512324][ T253] netlink_unicast+0x449/0x710 [ 1721.512324][ T253] netlink_sendmsg+0x723/0xbe0 [ 1721.512324][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1721.512324][ T253] ___sys_sendmsg+0xee/0x170 [ 1721.512324][ T253] __sys_sendmsg+0xcd/0x170 [ 1721.512324][ T253] do_syscall_64+0xc6/0x1e0 [ 1721.512324][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1721.512324][ T253] [ 1721.514403][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1721.514403][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1721.514403][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1721.514403][ T253] ipv6_find_idev+0x102/0x170 [ 1721.514403][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1721.514403][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1721.514403][ T253] netlink_rcv_skb+0x130/0x360 [ 1721.514403][ T253] netlink_unicast+0x449/0x710 [ 1721.514403][ T253] netlink_sendmsg+0x723/0xbe0 [ 1721.514403][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1721.514403][ T253] ___sys_sendmsg+0xee/0x170 [ 1721.514403][ T253] __sys_sendmsg+0xcd/0x170 [ 1721.514403][ T253] do_syscall_64+0xc6/0x1e0 [ 1721.514403][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1721.514403][ T253] [ 1731.666331][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1731.666819][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1731.666819][ T253] dst_init+0x84/0x4a0 [ 1731.666819][ T253] dst_alloc+0x97/0x150 [ 1731.666819][ T253] ip6_dst_alloc+0x23/0x90 [ 1731.666819][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1731.666819][ T253] ip6_pol_route+0x56f/0x840 [ 1731.666819][ T253] fib6_rule_lookup+0x334/0x630 [ 1731.666819][ T253] ip6_route_output_flags+0x259/0x480 [ 1731.666819][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1731.666819][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1731.666819][ T253] netlink_rcv_skb+0x130/0x360 [ 1731.666819][ T253] netlink_unicast+0x449/0x710 [ 1731.666819][ T253] netlink_sendmsg+0x723/0xbe0 [ 1731.666819][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1731.666819][ T253] ___sys_sendmsg+0xee/0x170 [ 1731.666819][ T253] __sys_sendmsg+0xcd/0x170 [ 1731.666819][ T253] do_syscall_64+0xc6/0x1e0 [ 1731.666819][ T253] [ 1731.669205][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1731.669205][ T253] netdev_get_by_index+0x5e/0x80 [ 1731.669205][ T253] fib6_nh_init+0x3d8/0x1580 [ 1731.669205][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1731.669205][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1731.669205][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1731.669205][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1731.669205][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1731.669205][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1731.669205][ T253] addrconf_dad_begin+0x310/0x670 [ 1731.669205][ T253] addrconf_dad_work+0x10b/0xab0 [ 1731.669205][ T253] process_one_work+0x84d/0x18a0 [ 1731.669205][ T253] worker_thread+0x587/0xd30 [ 1731.669205][ T253] kthread+0x28a/0x350 [ 1731.669205][ T253] ret_from_fork+0x31/0x70 [ 1731.669205][ T253] ret_from_fork_asm+0x1a/0x30 [ 1731.669205][ T253] [ 1731.671563][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1731.671563][ T253] netdev_get_by_index+0x5e/0x80 [ 1731.671563][ T253] fib6_nh_init+0x3d8/0x1580 [ 1731.671563][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1731.671563][ T253] ip6_route_add+0x1c/0x140 [ 1731.671563][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1731.671563][ T253] inet6_addr_add+0x4f8/0xa40 [ 1731.671563][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1731.671563][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1731.671563][ T253] netlink_rcv_skb+0x130/0x360 [ 1731.671563][ T253] netlink_unicast+0x449/0x710 [ 1731.671563][ T253] netlink_sendmsg+0x723/0xbe0 [ 1731.671563][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1731.671563][ T253] ___sys_sendmsg+0xee/0x170 [ 1731.671563][ T253] __sys_sendmsg+0xcd/0x170 [ 1731.671563][ T253] do_syscall_64+0xc6/0x1e0 [ 1731.671563][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1731.671563][ T253] [ 1731.674053][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1731.674053][ T253] netdev_get_by_index+0x5e/0x80 [ 1731.674053][ T253] fib6_nh_init+0x3d8/0x1580 [ 1731.674053][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1731.674053][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1731.674053][ T253] ipv6_add_addr+0x411/0x2000 [ 1731.674053][ T253] inet6_addr_add+0x30e/0xa40 [ 1731.674053][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1731.674053][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1731.674053][ T253] netlink_rcv_skb+0x130/0x360 [ 1731.674053][ T253] netlink_unicast+0x449/0x710 [ 1731.674053][ T253] netlink_sendmsg+0x723/0xbe0 [ 1731.674053][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1731.674053][ T253] ___sys_sendmsg+0xee/0x170 [ 1731.674053][ T253] __sys_sendmsg+0xcd/0x170 [ 1731.674053][ T253] do_syscall_64+0xc6/0x1e0 [ 1731.674053][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1731.674053][ T253] [ 1731.676299][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1731.676299][ T253] netdev_get_by_index+0x5e/0x80 [ 1731.676299][ T253] fib6_nh_init+0x3d8/0x1580 [ 1731.676299][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1731.676299][ T253] ip6_route_add+0x1c/0x140 [ 1731.676299][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1731.676299][ T253] addrconf_add_dev+0xe2/0x170 [ 1731.676299][ T253] inet6_addr_add+0x12f/0xa40 [ 1731.676299][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1731.676299][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1731.676299][ T253] netlink_rcv_skb+0x130/0x360 [ 1731.676299][ T253] netlink_unicast+0x449/0x710 [ 1731.676299][ T253] netlink_sendmsg+0x723/0xbe0 [ 1731.676299][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1731.676299][ T253] ___sys_sendmsg+0xee/0x170 [ 1731.676299][ T253] __sys_sendmsg+0xcd/0x170 [ 1731.676299][ T253] do_syscall_64+0xc6/0x1e0 [ 1731.676299][ T253] [ 1731.678539][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1731.678539][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1731.678539][ T253] ipv6_find_idev+0x102/0x170 [ 1731.678539][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1731.678539][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1731.678539][ T253] netlink_rcv_skb+0x130/0x360 [ 1731.678539][ T253] netlink_unicast+0x449/0x710 [ 1731.678539][ T253] netlink_sendmsg+0x723/0xbe0 [ 1731.678539][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1731.678539][ T253] ___sys_sendmsg+0xee/0x170 [ 1731.678539][ T253] __sys_sendmsg+0xcd/0x170 [ 1731.678539][ T253] do_syscall_64+0xc6/0x1e0 [ 1731.678539][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1731.678539][ T253] [ 1731.680417][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1731.680417][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1731.680417][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1731.680417][ T253] ipv6_find_idev+0x102/0x170 [ 1731.680417][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1731.680417][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1731.680417][ T253] netlink_rcv_skb+0x130/0x360 [ 1731.680417][ T253] netlink_unicast+0x449/0x710 [ 1731.680417][ T253] netlink_sendmsg+0x723/0xbe0 [ 1731.680417][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1731.680417][ T253] ___sys_sendmsg+0xee/0x170 [ 1731.680417][ T253] __sys_sendmsg+0xcd/0x170 [ 1731.680417][ T253] do_syscall_64+0xc6/0x1e0 [ 1731.680417][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1731.680417][ T253] [ 1741.922330][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1741.922820][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1741.922820][ T253] dst_init+0x84/0x4a0 [ 1741.922820][ T253] dst_alloc+0x97/0x150 [ 1741.922820][ T253] ip6_dst_alloc+0x23/0x90 [ 1741.922820][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1741.922820][ T253] ip6_pol_route+0x56f/0x840 [ 1741.922820][ T253] fib6_rule_lookup+0x334/0x630 [ 1741.922820][ T253] ip6_route_output_flags+0x259/0x480 [ 1741.922820][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1741.922820][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1741.922820][ T253] netlink_rcv_skb+0x130/0x360 [ 1741.922820][ T253] netlink_unicast+0x449/0x710 [ 1741.922820][ T253] netlink_sendmsg+0x723/0xbe0 [ 1741.922820][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1741.922820][ T253] ___sys_sendmsg+0xee/0x170 [ 1741.922820][ T253] __sys_sendmsg+0xcd/0x170 [ 1741.922820][ T253] do_syscall_64+0xc6/0x1e0 [ 1741.922820][ T253] [ 1741.925013][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1741.925013][ T253] netdev_get_by_index+0x5e/0x80 [ 1741.925013][ T253] fib6_nh_init+0x3d8/0x1580 [ 1741.925013][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1741.925013][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1741.925013][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1741.925013][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1741.925013][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1741.925013][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1741.925013][ T253] addrconf_dad_begin+0x310/0x670 [ 1741.925013][ T253] addrconf_dad_work+0x10b/0xab0 [ 1741.925013][ T253] process_one_work+0x84d/0x18a0 [ 1741.925013][ T253] worker_thread+0x587/0xd30 [ 1741.925013][ T253] kthread+0x28a/0x350 [ 1741.925013][ T253] ret_from_fork+0x31/0x70 [ 1741.925013][ T253] ret_from_fork_asm+0x1a/0x30 [ 1741.925013][ T253] [ 1741.927150][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1741.927150][ T253] netdev_get_by_index+0x5e/0x80 [ 1741.927150][ T253] fib6_nh_init+0x3d8/0x1580 [ 1741.927150][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1741.927150][ T253] ip6_route_add+0x1c/0x140 [ 1741.927150][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1741.927150][ T253] inet6_addr_add+0x4f8/0xa40 [ 1741.927150][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1741.927150][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1741.927150][ T253] netlink_rcv_skb+0x130/0x360 [ 1741.927150][ T253] netlink_unicast+0x449/0x710 [ 1741.927150][ T253] netlink_sendmsg+0x723/0xbe0 [ 1741.927150][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1741.927150][ T253] ___sys_sendmsg+0xee/0x170 [ 1741.927150][ T253] __sys_sendmsg+0xcd/0x170 [ 1741.927150][ T253] do_syscall_64+0xc6/0x1e0 [ 1741.927150][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1741.927150][ T253] [ 1741.929379][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1741.929379][ T253] netdev_get_by_index+0x5e/0x80 [ 1741.929379][ T253] fib6_nh_init+0x3d8/0x1580 [ 1741.929379][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1741.929379][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1741.929379][ T253] ipv6_add_addr+0x411/0x2000 [ 1741.929379][ T253] inet6_addr_add+0x30e/0xa40 [ 1741.929379][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1741.929379][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1741.929379][ T253] netlink_rcv_skb+0x130/0x360 [ 1741.929379][ T253] netlink_unicast+0x449/0x710 [ 1741.929379][ T253] netlink_sendmsg+0x723/0xbe0 [ 1741.929379][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1741.929379][ T253] ___sys_sendmsg+0xee/0x170 [ 1741.929379][ T253] __sys_sendmsg+0xcd/0x170 [ 1741.929379][ T253] do_syscall_64+0xc6/0x1e0 [ 1741.929379][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1741.929379][ T253] [ 1741.931663][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1741.931663][ T253] netdev_get_by_index+0x5e/0x80 [ 1741.931663][ T253] fib6_nh_init+0x3d8/0x1580 [ 1741.931663][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1741.931663][ T253] ip6_route_add+0x1c/0x140 [ 1741.931663][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1741.931663][ T253] addrconf_add_dev+0xe2/0x170 [ 1741.931663][ T253] inet6_addr_add+0x12f/0xa40 [ 1741.931663][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1741.931663][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1741.931663][ T253] netlink_rcv_skb+0x130/0x360 [ 1741.931663][ T253] netlink_unicast+0x449/0x710 [ 1741.931663][ T253] netlink_sendmsg+0x723/0xbe0 [ 1741.931663][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1741.931663][ T253] ___sys_sendmsg+0xee/0x170 [ 1741.931663][ T253] __sys_sendmsg+0xcd/0x170 [ 1741.931663][ T253] do_syscall_64+0xc6/0x1e0 [ 1741.931663][ T253] [ 1741.933866][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1741.933866][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1741.933866][ T253] ipv6_find_idev+0x102/0x170 [ 1741.933866][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1741.933866][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1741.933866][ T253] netlink_rcv_skb+0x130/0x360 [ 1741.933866][ T253] netlink_unicast+0x449/0x710 [ 1741.933866][ T253] netlink_sendmsg+0x723/0xbe0 [ 1741.933866][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1741.933866][ T253] ___sys_sendmsg+0xee/0x170 [ 1741.933866][ T253] __sys_sendmsg+0xcd/0x170 [ 1741.933866][ T253] do_syscall_64+0xc6/0x1e0 [ 1741.933866][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1741.933866][ T253] [ 1741.935585][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1741.935585][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1741.935585][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1741.935585][ T253] ipv6_find_idev+0x102/0x170 [ 1741.935585][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1741.935585][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1741.935585][ T253] netlink_rcv_skb+0x130/0x360 [ 1741.935585][ T253] netlink_unicast+0x449/0x710 [ 1741.935585][ T253] netlink_sendmsg+0x723/0xbe0 [ 1741.935585][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1741.935585][ T253] ___sys_sendmsg+0xee/0x170 [ 1741.935585][ T253] __sys_sendmsg+0xcd/0x170 [ 1741.935585][ T253] do_syscall_64+0xc6/0x1e0 [ 1741.935585][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1741.935585][ T253] [ 1752.170314][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1752.170796][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1752.170796][ T253] dst_init+0x84/0x4a0 [ 1752.170796][ T253] dst_alloc+0x97/0x150 [ 1752.170796][ T253] ip6_dst_alloc+0x23/0x90 [ 1752.170796][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1752.170796][ T253] ip6_pol_route+0x56f/0x840 [ 1752.170796][ T253] fib6_rule_lookup+0x334/0x630 [ 1752.170796][ T253] ip6_route_output_flags+0x259/0x480 [ 1752.170796][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1752.170796][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1752.170796][ T253] netlink_rcv_skb+0x130/0x360 [ 1752.170796][ T253] netlink_unicast+0x449/0x710 [ 1752.170796][ T253] netlink_sendmsg+0x723/0xbe0 [ 1752.170796][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1752.170796][ T253] ___sys_sendmsg+0xee/0x170 [ 1752.170796][ T253] __sys_sendmsg+0xcd/0x170 [ 1752.170796][ T253] do_syscall_64+0xc6/0x1e0 [ 1752.170796][ T253] [ 1752.173039][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1752.173039][ T253] netdev_get_by_index+0x5e/0x80 [ 1752.173039][ T253] fib6_nh_init+0x3d8/0x1580 [ 1752.173039][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1752.173039][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1752.173039][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1752.173039][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1752.173039][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1752.173039][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1752.173039][ T253] addrconf_dad_begin+0x310/0x670 [ 1752.173039][ T253] addrconf_dad_work+0x10b/0xab0 [ 1752.173039][ T253] process_one_work+0x84d/0x18a0 [ 1752.173039][ T253] worker_thread+0x587/0xd30 [ 1752.173039][ T253] kthread+0x28a/0x350 [ 1752.173039][ T253] ret_from_fork+0x31/0x70 [ 1752.173039][ T253] ret_from_fork_asm+0x1a/0x30 [ 1752.173039][ T253] [ 1752.175206][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1752.175206][ T253] netdev_get_by_index+0x5e/0x80 [ 1752.175206][ T253] fib6_nh_init+0x3d8/0x1580 [ 1752.175206][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1752.175206][ T253] ip6_route_add+0x1c/0x140 [ 1752.175206][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1752.175206][ T253] inet6_addr_add+0x4f8/0xa40 [ 1752.175206][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1752.175206][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.175206][ T253] netlink_rcv_skb+0x130/0x360 [ 1752.175206][ T253] netlink_unicast+0x449/0x710 [ 1752.175206][ T253] netlink_sendmsg+0x723/0xbe0 [ 1752.175206][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1752.175206][ T253] ___sys_sendmsg+0xee/0x170 [ 1752.175206][ T253] __sys_sendmsg+0xcd/0x170 [ 1752.175206][ T253] do_syscall_64+0xc6/0x1e0 [ 1752.175206][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.175206][ T253] [ 1752.177461][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1752.177461][ T253] netdev_get_by_index+0x5e/0x80 [ 1752.177461][ T253] fib6_nh_init+0x3d8/0x1580 [ 1752.177461][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1752.177461][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1752.177461][ T253] ipv6_add_addr+0x411/0x2000 [ 1752.177461][ T253] inet6_addr_add+0x30e/0xa40 [ 1752.177461][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1752.177461][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.177461][ T253] netlink_rcv_skb+0x130/0x360 [ 1752.177461][ T253] netlink_unicast+0x449/0x710 [ 1752.177461][ T253] netlink_sendmsg+0x723/0xbe0 [ 1752.177461][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1752.177461][ T253] ___sys_sendmsg+0xee/0x170 [ 1752.177461][ T253] __sys_sendmsg+0xcd/0x170 [ 1752.177461][ T253] do_syscall_64+0xc6/0x1e0 [ 1752.177461][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.177461][ T253] [ 1752.179980][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1752.179980][ T253] netdev_get_by_index+0x5e/0x80 [ 1752.179980][ T253] fib6_nh_init+0x3d8/0x1580 [ 1752.179980][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1752.179980][ T253] ip6_route_add+0x1c/0x140 [ 1752.179980][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1752.179980][ T253] addrconf_add_dev+0xe2/0x170 [ 1752.179980][ T253] inet6_addr_add+0x12f/0xa40 [ 1752.179980][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1752.179980][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.179980][ T253] netlink_rcv_skb+0x130/0x360 [ 1752.179980][ T253] netlink_unicast+0x449/0x710 [ 1752.179980][ T253] netlink_sendmsg+0x723/0xbe0 [ 1752.179980][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1752.179980][ T253] ___sys_sendmsg+0xee/0x170 [ 1752.179980][ T253] __sys_sendmsg+0xcd/0x170 [ 1752.179980][ T253] do_syscall_64+0xc6/0x1e0 [ 1752.179980][ T253] [ 1752.182635][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1752.182635][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1752.182635][ T253] ipv6_find_idev+0x102/0x170 [ 1752.182635][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1752.182635][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.182635][ T253] netlink_rcv_skb+0x130/0x360 [ 1752.182635][ T253] netlink_unicast+0x449/0x710 [ 1752.182635][ T253] netlink_sendmsg+0x723/0xbe0 [ 1752.182635][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1752.182635][ T253] ___sys_sendmsg+0xee/0x170 [ 1752.182635][ T253] __sys_sendmsg+0xcd/0x170 [ 1752.182635][ T253] do_syscall_64+0xc6/0x1e0 [ 1752.182635][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.182635][ T253] [ 1752.184698][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1752.184698][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1752.184698][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1752.184698][ T253] ipv6_find_idev+0x102/0x170 [ 1752.184698][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1752.184698][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.184698][ T253] netlink_rcv_skb+0x130/0x360 [ 1752.184698][ T253] netlink_unicast+0x449/0x710 [ 1752.184698][ T253] netlink_sendmsg+0x723/0xbe0 [ 1752.184698][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1752.184698][ T253] ___sys_sendmsg+0xee/0x170 [ 1752.184698][ T253] __sys_sendmsg+0xcd/0x170 [ 1752.184698][ T253] do_syscall_64+0xc6/0x1e0 [ 1752.184698][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.184698][ T253] [ 1762.426501][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1762.427275][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1762.427275][ T253] dst_init+0x84/0x4a0 [ 1762.427275][ T253] dst_alloc+0x97/0x150 [ 1762.427275][ T253] ip6_dst_alloc+0x23/0x90 [ 1762.427275][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1762.427275][ T253] ip6_pol_route+0x56f/0x840 [ 1762.427275][ T253] fib6_rule_lookup+0x334/0x630 [ 1762.427275][ T253] ip6_route_output_flags+0x259/0x480 [ 1762.427275][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1762.427275][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1762.427275][ T253] netlink_rcv_skb+0x130/0x360 [ 1762.427275][ T253] netlink_unicast+0x449/0x710 [ 1762.427275][ T253] netlink_sendmsg+0x723/0xbe0 [ 1762.427275][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1762.427275][ T253] ___sys_sendmsg+0xee/0x170 [ 1762.427275][ T253] __sys_sendmsg+0xcd/0x170 [ 1762.427275][ T253] do_syscall_64+0xc6/0x1e0 [ 1762.427275][ T253] [ 1762.430686][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1762.430686][ T253] netdev_get_by_index+0x5e/0x80 [ 1762.430686][ T253] fib6_nh_init+0x3d8/0x1580 [ 1762.430686][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1762.430686][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1762.430686][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1762.430686][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1762.430686][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1762.430686][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1762.430686][ T253] addrconf_dad_begin+0x310/0x670 [ 1762.430686][ T253] addrconf_dad_work+0x10b/0xab0 [ 1762.430686][ T253] process_one_work+0x84d/0x18a0 [ 1762.430686][ T253] worker_thread+0x587/0xd30 [ 1762.430686][ T253] kthread+0x28a/0x350 [ 1762.430686][ T253] ret_from_fork+0x31/0x70 [ 1762.430686][ T253] ret_from_fork_asm+0x1a/0x30 [ 1762.430686][ T253] [ 1762.434148][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1762.434148][ T253] netdev_get_by_index+0x5e/0x80 [ 1762.434148][ T253] fib6_nh_init+0x3d8/0x1580 [ 1762.434148][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1762.434148][ T253] ip6_route_add+0x1c/0x140 [ 1762.434148][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1762.434148][ T253] inet6_addr_add+0x4f8/0xa40 [ 1762.434148][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1762.434148][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1762.434148][ T253] netlink_rcv_skb+0x130/0x360 [ 1762.434148][ T253] netlink_unicast+0x449/0x710 [ 1762.434148][ T253] netlink_sendmsg+0x723/0xbe0 [ 1762.434148][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1762.434148][ T253] ___sys_sendmsg+0xee/0x170 [ 1762.434148][ T253] __sys_sendmsg+0xcd/0x170 [ 1762.434148][ T253] do_syscall_64+0xc6/0x1e0 [ 1762.434148][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1762.434148][ T253] [ 1762.437635][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1762.437635][ T253] netdev_get_by_index+0x5e/0x80 [ 1762.437635][ T253] fib6_nh_init+0x3d8/0x1580 [ 1762.437635][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1762.437635][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1762.437635][ T253] ipv6_add_addr+0x411/0x2000 [ 1762.437635][ T253] inet6_addr_add+0x30e/0xa40 [ 1762.437635][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1762.437635][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1762.437635][ T253] netlink_rcv_skb+0x130/0x360 [ 1762.437635][ T253] netlink_unicast+0x449/0x710 [ 1762.437635][ T253] netlink_sendmsg+0x723/0xbe0 [ 1762.437635][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1762.437635][ T253] ___sys_sendmsg+0xee/0x170 [ 1762.437635][ T253] __sys_sendmsg+0xcd/0x170 [ 1762.437635][ T253] do_syscall_64+0xc6/0x1e0 [ 1762.437635][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1762.437635][ T253] [ 1762.440718][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1762.440718][ T253] netdev_get_by_index+0x5e/0x80 [ 1762.440718][ T253] fib6_nh_init+0x3d8/0x1580 [ 1762.440718][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1762.440718][ T253] ip6_route_add+0x1c/0x140 [ 1762.440718][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1762.440718][ T253] addrconf_add_dev+0xe2/0x170 [ 1762.440718][ T253] inet6_addr_add+0x12f/0xa40 [ 1762.440718][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1762.440718][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1762.440718][ T253] netlink_rcv_skb+0x130/0x360 [ 1762.440718][ T253] netlink_unicast+0x449/0x710 [ 1762.440718][ T253] netlink_sendmsg+0x723/0xbe0 [ 1762.440718][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1762.440718][ T253] ___sys_sendmsg+0xee/0x170 [ 1762.440718][ T253] __sys_sendmsg+0xcd/0x170 [ 1762.440718][ T253] do_syscall_64+0xc6/0x1e0 [ 1762.440718][ T253] [ 1762.443080][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1762.443080][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1762.443080][ T253] ipv6_find_idev+0x102/0x170 [ 1762.443080][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1762.443080][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1762.443080][ T253] netlink_rcv_skb+0x130/0x360 [ 1762.443080][ T253] netlink_unicast+0x449/0x710 [ 1762.443080][ T253] netlink_sendmsg+0x723/0xbe0 [ 1762.443080][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1762.443080][ T253] ___sys_sendmsg+0xee/0x170 [ 1762.443080][ T253] __sys_sendmsg+0xcd/0x170 [ 1762.443080][ T253] do_syscall_64+0xc6/0x1e0 [ 1762.443080][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1762.443080][ T253] [ 1762.444881][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1762.444881][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1762.444881][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1762.444881][ T253] ipv6_find_idev+0x102/0x170 [ 1762.444881][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1762.444881][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1762.444881][ T253] netlink_rcv_skb+0x130/0x360 [ 1762.444881][ T253] netlink_unicast+0x449/0x710 [ 1762.444881][ T253] netlink_sendmsg+0x723/0xbe0 [ 1762.444881][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1762.444881][ T253] ___sys_sendmsg+0xee/0x170 [ 1762.444881][ T253] __sys_sendmsg+0xcd/0x170 [ 1762.444881][ T253] do_syscall_64+0xc6/0x1e0 [ 1762.444881][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1762.444881][ T253] [ 1772.482329][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1772.482854][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1772.482854][ T253] dst_init+0x84/0x4a0 [ 1772.482854][ T253] dst_alloc+0x97/0x150 [ 1772.482854][ T253] ip6_dst_alloc+0x23/0x90 [ 1772.482854][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1772.482854][ T253] ip6_pol_route+0x56f/0x840 [ 1772.482854][ T253] fib6_rule_lookup+0x334/0x630 [ 1772.482854][ T253] ip6_route_output_flags+0x259/0x480 [ 1772.482854][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1772.482854][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1772.482854][ T253] netlink_rcv_skb+0x130/0x360 [ 1772.482854][ T253] netlink_unicast+0x449/0x710 [ 1772.482854][ T253] netlink_sendmsg+0x723/0xbe0 [ 1772.482854][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1772.482854][ T253] ___sys_sendmsg+0xee/0x170 [ 1772.482854][ T253] __sys_sendmsg+0xcd/0x170 [ 1772.482854][ T253] do_syscall_64+0xc6/0x1e0 [ 1772.482854][ T253] [ 1772.485278][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1772.485278][ T253] netdev_get_by_index+0x5e/0x80 [ 1772.485278][ T253] fib6_nh_init+0x3d8/0x1580 [ 1772.485278][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1772.485278][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1772.485278][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1772.485278][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1772.485278][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1772.485278][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1772.485278][ T253] addrconf_dad_begin+0x310/0x670 [ 1772.485278][ T253] addrconf_dad_work+0x10b/0xab0 [ 1772.485278][ T253] process_one_work+0x84d/0x18a0 [ 1772.485278][ T253] worker_thread+0x587/0xd30 [ 1772.485278][ T253] kthread+0x28a/0x350 [ 1772.485278][ T253] ret_from_fork+0x31/0x70 [ 1772.485278][ T253] ret_from_fork_asm+0x1a/0x30 [ 1772.485278][ T253] [ 1772.487661][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1772.487661][ T253] netdev_get_by_index+0x5e/0x80 [ 1772.487661][ T253] fib6_nh_init+0x3d8/0x1580 [ 1772.487661][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1772.487661][ T253] ip6_route_add+0x1c/0x140 [ 1772.487661][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1772.487661][ T253] inet6_addr_add+0x4f8/0xa40 [ 1772.487661][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1772.487661][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1772.487661][ T253] netlink_rcv_skb+0x130/0x360 [ 1772.487661][ T253] netlink_unicast+0x449/0x710 [ 1772.487661][ T253] netlink_sendmsg+0x723/0xbe0 [ 1772.487661][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1772.487661][ T253] ___sys_sendmsg+0xee/0x170 [ 1772.487661][ T253] __sys_sendmsg+0xcd/0x170 [ 1772.487661][ T253] do_syscall_64+0xc6/0x1e0 [ 1772.487661][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1772.487661][ T253] [ 1772.490168][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1772.490168][ T253] netdev_get_by_index+0x5e/0x80 [ 1772.490168][ T253] fib6_nh_init+0x3d8/0x1580 [ 1772.490168][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1772.490168][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1772.490168][ T253] ipv6_add_addr+0x411/0x2000 [ 1772.490168][ T253] inet6_addr_add+0x30e/0xa40 [ 1772.490168][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1772.490168][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1772.490168][ T253] netlink_rcv_skb+0x130/0x360 [ 1772.490168][ T253] netlink_unicast+0x449/0x710 [ 1772.490168][ T253] netlink_sendmsg+0x723/0xbe0 [ 1772.490168][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1772.490168][ T253] ___sys_sendmsg+0xee/0x170 [ 1772.490168][ T253] __sys_sendmsg+0xcd/0x170 [ 1772.490168][ T253] do_syscall_64+0xc6/0x1e0 [ 1772.490168][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1772.490168][ T253] [ 1772.492707][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1772.492707][ T253] netdev_get_by_index+0x5e/0x80 [ 1772.492707][ T253] fib6_nh_init+0x3d8/0x1580 [ 1772.492707][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1772.492707][ T253] ip6_route_add+0x1c/0x140 [ 1772.492707][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1772.492707][ T253] addrconf_add_dev+0xe2/0x170 [ 1772.492707][ T253] inet6_addr_add+0x12f/0xa40 [ 1772.492707][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1772.492707][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1772.492707][ T253] netlink_rcv_skb+0x130/0x360 [ 1772.492707][ T253] netlink_unicast+0x449/0x710 [ 1772.492707][ T253] netlink_sendmsg+0x723/0xbe0 [ 1772.492707][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1772.492707][ T253] ___sys_sendmsg+0xee/0x170 [ 1772.492707][ T253] __sys_sendmsg+0xcd/0x170 [ 1772.492707][ T253] do_syscall_64+0xc6/0x1e0 [ 1772.492707][ T253] [ 1772.495169][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1772.495169][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1772.495169][ T253] ipv6_find_idev+0x102/0x170 [ 1772.495169][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1772.495169][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1772.495169][ T253] netlink_rcv_skb+0x130/0x360 [ 1772.495169][ T253] netlink_unicast+0x449/0x710 [ 1772.495169][ T253] netlink_sendmsg+0x723/0xbe0 [ 1772.495169][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1772.495169][ T253] ___sys_sendmsg+0xee/0x170 [ 1772.495169][ T253] __sys_sendmsg+0xcd/0x170 [ 1772.495169][ T253] do_syscall_64+0xc6/0x1e0 [ 1772.495169][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1772.495169][ T253] [ 1772.497119][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1772.497119][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1772.497119][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1772.497119][ T253] ipv6_find_idev+0x102/0x170 [ 1772.497119][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1772.497119][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1772.497119][ T253] netlink_rcv_skb+0x130/0x360 [ 1772.497119][ T253] netlink_unicast+0x449/0x710 [ 1772.497119][ T253] netlink_sendmsg+0x723/0xbe0 [ 1772.497119][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1772.497119][ T253] ___sys_sendmsg+0xee/0x170 [ 1772.497119][ T253] __sys_sendmsg+0xcd/0x170 [ 1772.497119][ T253] do_syscall_64+0xc6/0x1e0 [ 1772.497119][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1772.497119][ T253] [ 1782.594353][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1782.594797][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1782.594797][ T253] dst_init+0x84/0x4a0 [ 1782.594797][ T253] dst_alloc+0x97/0x150 [ 1782.594797][ T253] ip6_dst_alloc+0x23/0x90 [ 1782.594797][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1782.594797][ T253] ip6_pol_route+0x56f/0x840 [ 1782.594797][ T253] fib6_rule_lookup+0x334/0x630 [ 1782.594797][ T253] ip6_route_output_flags+0x259/0x480 [ 1782.594797][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1782.594797][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1782.594797][ T253] netlink_rcv_skb+0x130/0x360 [ 1782.594797][ T253] netlink_unicast+0x449/0x710 [ 1782.594797][ T253] netlink_sendmsg+0x723/0xbe0 [ 1782.594797][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1782.594797][ T253] ___sys_sendmsg+0xee/0x170 [ 1782.594797][ T253] __sys_sendmsg+0xcd/0x170 [ 1782.594797][ T253] do_syscall_64+0xc6/0x1e0 [ 1782.594797][ T253] [ 1782.596980][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1782.596980][ T253] netdev_get_by_index+0x5e/0x80 [ 1782.596980][ T253] fib6_nh_init+0x3d8/0x1580 [ 1782.596980][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1782.596980][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1782.596980][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1782.596980][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1782.596980][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1782.596980][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1782.596980][ T253] addrconf_dad_begin+0x310/0x670 [ 1782.596980][ T253] addrconf_dad_work+0x10b/0xab0 [ 1782.596980][ T253] process_one_work+0x84d/0x18a0 [ 1782.596980][ T253] worker_thread+0x587/0xd30 [ 1782.596980][ T253] kthread+0x28a/0x350 [ 1782.596980][ T253] ret_from_fork+0x31/0x70 [ 1782.596980][ T253] ret_from_fork_asm+0x1a/0x30 [ 1782.596980][ T253] [ 1782.599116][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1782.599116][ T253] netdev_get_by_index+0x5e/0x80 [ 1782.599116][ T253] fib6_nh_init+0x3d8/0x1580 [ 1782.599116][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1782.599116][ T253] ip6_route_add+0x1c/0x140 [ 1782.599116][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1782.599116][ T253] inet6_addr_add+0x4f8/0xa40 [ 1782.599116][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1782.599116][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1782.599116][ T253] netlink_rcv_skb+0x130/0x360 [ 1782.599116][ T253] netlink_unicast+0x449/0x710 [ 1782.599116][ T253] netlink_sendmsg+0x723/0xbe0 [ 1782.599116][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1782.599116][ T253] ___sys_sendmsg+0xee/0x170 [ 1782.599116][ T253] __sys_sendmsg+0xcd/0x170 [ 1782.599116][ T253] do_syscall_64+0xc6/0x1e0 [ 1782.599116][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1782.599116][ T253] [ 1782.601374][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1782.601374][ T253] netdev_get_by_index+0x5e/0x80 [ 1782.601374][ T253] fib6_nh_init+0x3d8/0x1580 [ 1782.601374][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1782.601374][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1782.601374][ T253] ipv6_add_addr+0x411/0x2000 [ 1782.601374][ T253] inet6_addr_add+0x30e/0xa40 [ 1782.601374][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1782.601374][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1782.601374][ T253] netlink_rcv_skb+0x130/0x360 [ 1782.601374][ T253] netlink_unicast+0x449/0x710 [ 1782.601374][ T253] netlink_sendmsg+0x723/0xbe0 [ 1782.601374][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1782.601374][ T253] ___sys_sendmsg+0xee/0x170 [ 1782.601374][ T253] __sys_sendmsg+0xcd/0x170 [ 1782.601374][ T253] do_syscall_64+0xc6/0x1e0 [ 1782.601374][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1782.601374][ T253] [ 1782.603606][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1782.603606][ T253] netdev_get_by_index+0x5e/0x80 [ 1782.603606][ T253] fib6_nh_init+0x3d8/0x1580 [ 1782.603606][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1782.603606][ T253] ip6_route_add+0x1c/0x140 [ 1782.603606][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1782.603606][ T253] addrconf_add_dev+0xe2/0x170 [ 1782.603606][ T253] inet6_addr_add+0x12f/0xa40 [ 1782.603606][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1782.603606][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1782.603606][ T253] netlink_rcv_skb+0x130/0x360 [ 1782.603606][ T253] netlink_unicast+0x449/0x710 [ 1782.603606][ T253] netlink_sendmsg+0x723/0xbe0 [ 1782.603606][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1782.603606][ T253] ___sys_sendmsg+0xee/0x170 [ 1782.603606][ T253] __sys_sendmsg+0xcd/0x170 [ 1782.603606][ T253] do_syscall_64+0xc6/0x1e0 [ 1782.603606][ T253] [ 1782.605808][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1782.605808][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1782.605808][ T253] ipv6_find_idev+0x102/0x170 [ 1782.605808][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1782.605808][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1782.605808][ T253] netlink_rcv_skb+0x130/0x360 [ 1782.605808][ T253] netlink_unicast+0x449/0x710 [ 1782.605808][ T253] netlink_sendmsg+0x723/0xbe0 [ 1782.605808][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1782.605808][ T253] ___sys_sendmsg+0xee/0x170 [ 1782.605808][ T253] __sys_sendmsg+0xcd/0x170 [ 1782.605808][ T253] do_syscall_64+0xc6/0x1e0 [ 1782.605808][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1782.605808][ T253] [ 1782.607529][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1782.607529][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1782.607529][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1782.607529][ T253] ipv6_find_idev+0x102/0x170 [ 1782.607529][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1782.607529][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1782.607529][ T253] netlink_rcv_skb+0x130/0x360 [ 1782.607529][ T253] netlink_unicast+0x449/0x710 [ 1782.607529][ T253] netlink_sendmsg+0x723/0xbe0 [ 1782.607529][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1782.607529][ T253] ___sys_sendmsg+0xee/0x170 [ 1782.607529][ T253] __sys_sendmsg+0xcd/0x170 [ 1782.607529][ T253] do_syscall_64+0xc6/0x1e0 [ 1782.607529][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1782.607529][ T253] [ 1792.842412][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1792.842907][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1792.842907][ T253] dst_init+0x84/0x4a0 [ 1792.842907][ T253] dst_alloc+0x97/0x150 [ 1792.842907][ T253] ip6_dst_alloc+0x23/0x90 [ 1792.842907][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1792.842907][ T253] ip6_pol_route+0x56f/0x840 [ 1792.842907][ T253] fib6_rule_lookup+0x334/0x630 [ 1792.842907][ T253] ip6_route_output_flags+0x259/0x480 [ 1792.842907][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1792.842907][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1792.842907][ T253] netlink_rcv_skb+0x130/0x360 [ 1792.842907][ T253] netlink_unicast+0x449/0x710 [ 1792.842907][ T253] netlink_sendmsg+0x723/0xbe0 [ 1792.842907][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1792.842907][ T253] ___sys_sendmsg+0xee/0x170 [ 1792.842907][ T253] __sys_sendmsg+0xcd/0x170 [ 1792.842907][ T253] do_syscall_64+0xc6/0x1e0 [ 1792.842907][ T253] [ 1792.845103][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1792.845103][ T253] netdev_get_by_index+0x5e/0x80 [ 1792.845103][ T253] fib6_nh_init+0x3d8/0x1580 [ 1792.845103][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1792.845103][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1792.845103][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1792.845103][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1792.845103][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1792.845103][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1792.845103][ T253] addrconf_dad_begin+0x310/0x670 [ 1792.845103][ T253] addrconf_dad_work+0x10b/0xab0 [ 1792.845103][ T253] process_one_work+0x84d/0x18a0 [ 1792.845103][ T253] worker_thread+0x587/0xd30 [ 1792.845103][ T253] kthread+0x28a/0x350 [ 1792.845103][ T253] ret_from_fork+0x31/0x70 [ 1792.845103][ T253] ret_from_fork_asm+0x1a/0x30 [ 1792.845103][ T253] [ 1792.847237][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1792.847237][ T253] netdev_get_by_index+0x5e/0x80 [ 1792.847237][ T253] fib6_nh_init+0x3d8/0x1580 [ 1792.847237][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1792.847237][ T253] ip6_route_add+0x1c/0x140 [ 1792.847237][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1792.847237][ T253] inet6_addr_add+0x4f8/0xa40 [ 1792.847237][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1792.847237][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1792.847237][ T253] netlink_rcv_skb+0x130/0x360 [ 1792.847237][ T253] netlink_unicast+0x449/0x710 [ 1792.847237][ T253] netlink_sendmsg+0x723/0xbe0 [ 1792.847237][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1792.847237][ T253] ___sys_sendmsg+0xee/0x170 [ 1792.847237][ T253] __sys_sendmsg+0xcd/0x170 [ 1792.847237][ T253] do_syscall_64+0xc6/0x1e0 [ 1792.847237][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1792.847237][ T253] [ 1792.849606][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1792.849606][ T253] netdev_get_by_index+0x5e/0x80 [ 1792.849606][ T253] fib6_nh_init+0x3d8/0x1580 [ 1792.849606][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1792.849606][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1792.849606][ T253] ipv6_add_addr+0x411/0x2000 [ 1792.849606][ T253] inet6_addr_add+0x30e/0xa40 [ 1792.849606][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1792.849606][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1792.849606][ T253] netlink_rcv_skb+0x130/0x360 [ 1792.849606][ T253] netlink_unicast+0x449/0x710 [ 1792.849606][ T253] netlink_sendmsg+0x723/0xbe0 [ 1792.849606][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1792.849606][ T253] ___sys_sendmsg+0xee/0x170 [ 1792.849606][ T253] __sys_sendmsg+0xcd/0x170 [ 1792.849606][ T253] do_syscall_64+0xc6/0x1e0 [ 1792.849606][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1792.849606][ T253] [ 1792.851875][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1792.851875][ T253] netdev_get_by_index+0x5e/0x80 [ 1792.851875][ T253] fib6_nh_init+0x3d8/0x1580 [ 1792.851875][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1792.851875][ T253] ip6_route_add+0x1c/0x140 [ 1792.851875][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1792.851875][ T253] addrconf_add_dev+0xe2/0x170 [ 1792.851875][ T253] inet6_addr_add+0x12f/0xa40 [ 1792.851875][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1792.851875][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1792.851875][ T253] netlink_rcv_skb+0x130/0x360 [ 1792.851875][ T253] netlink_unicast+0x449/0x710 [ 1792.851875][ T253] netlink_sendmsg+0x723/0xbe0 [ 1792.851875][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1792.851875][ T253] ___sys_sendmsg+0xee/0x170 [ 1792.851875][ T253] __sys_sendmsg+0xcd/0x170 [ 1792.851875][ T253] do_syscall_64+0xc6/0x1e0 [ 1792.851875][ T253] [ 1792.854075][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1792.854075][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1792.854075][ T253] ipv6_find_idev+0x102/0x170 [ 1792.854075][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1792.854075][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1792.854075][ T253] netlink_rcv_skb+0x130/0x360 [ 1792.854075][ T253] netlink_unicast+0x449/0x710 [ 1792.854075][ T253] netlink_sendmsg+0x723/0xbe0 [ 1792.854075][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1792.854075][ T253] ___sys_sendmsg+0xee/0x170 [ 1792.854075][ T253] __sys_sendmsg+0xcd/0x170 [ 1792.854075][ T253] do_syscall_64+0xc6/0x1e0 [ 1792.854075][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1792.854075][ T253] [ 1792.855794][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1792.855794][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1792.855794][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1792.855794][ T253] ipv6_find_idev+0x102/0x170 [ 1792.855794][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1792.855794][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1792.855794][ T253] netlink_rcv_skb+0x130/0x360 [ 1792.855794][ T253] netlink_unicast+0x449/0x710 [ 1792.855794][ T253] netlink_sendmsg+0x723/0xbe0 [ 1792.855794][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1792.855794][ T253] ___sys_sendmsg+0xee/0x170 [ 1792.855794][ T253] __sys_sendmsg+0xcd/0x170 [ 1792.855794][ T253] do_syscall_64+0xc6/0x1e0 [ 1792.855794][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1792.855794][ T253] [ 1803.042359][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1803.043070][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1803.043070][ T253] dst_init+0x84/0x4a0 [ 1803.043070][ T253] dst_alloc+0x97/0x150 [ 1803.043070][ T253] ip6_dst_alloc+0x23/0x90 [ 1803.043070][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1803.043070][ T253] ip6_pol_route+0x56f/0x840 [ 1803.043070][ T253] fib6_rule_lookup+0x334/0x630 [ 1803.043070][ T253] ip6_route_output_flags+0x259/0x480 [ 1803.043070][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1803.043070][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1803.043070][ T253] netlink_rcv_skb+0x130/0x360 [ 1803.043070][ T253] netlink_unicast+0x449/0x710 [ 1803.043070][ T253] netlink_sendmsg+0x723/0xbe0 [ 1803.043070][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1803.043070][ T253] ___sys_sendmsg+0xee/0x170 [ 1803.043070][ T253] __sys_sendmsg+0xcd/0x170 [ 1803.043070][ T253] do_syscall_64+0xc6/0x1e0 [ 1803.043070][ T253] [ 1803.046530][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1803.046530][ T253] netdev_get_by_index+0x5e/0x80 [ 1803.046530][ T253] fib6_nh_init+0x3d8/0x1580 [ 1803.046530][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1803.046530][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1803.046530][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1803.046530][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1803.046530][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1803.046530][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1803.046530][ T253] addrconf_dad_begin+0x310/0x670 [ 1803.046530][ T253] addrconf_dad_work+0x10b/0xab0 [ 1803.046530][ T253] process_one_work+0x84d/0x18a0 [ 1803.046530][ T253] worker_thread+0x587/0xd30 [ 1803.046530][ T253] kthread+0x28a/0x350 [ 1803.046530][ T253] ret_from_fork+0x31/0x70 [ 1803.046530][ T253] ret_from_fork_asm+0x1a/0x30 [ 1803.046530][ T253] [ 1803.049907][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1803.049907][ T253] netdev_get_by_index+0x5e/0x80 [ 1803.049907][ T253] fib6_nh_init+0x3d8/0x1580 [ 1803.049907][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1803.049907][ T253] ip6_route_add+0x1c/0x140 [ 1803.049907][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1803.049907][ T253] inet6_addr_add+0x4f8/0xa40 [ 1803.049907][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1803.049907][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1803.049907][ T253] netlink_rcv_skb+0x130/0x360 [ 1803.049907][ T253] netlink_unicast+0x449/0x710 [ 1803.049907][ T253] netlink_sendmsg+0x723/0xbe0 [ 1803.049907][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1803.049907][ T253] ___sys_sendmsg+0xee/0x170 [ 1803.049907][ T253] __sys_sendmsg+0xcd/0x170 [ 1803.049907][ T253] do_syscall_64+0xc6/0x1e0 [ 1803.049907][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1803.049907][ T253] [ 1803.053616][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1803.053616][ T253] netdev_get_by_index+0x5e/0x80 [ 1803.053616][ T253] fib6_nh_init+0x3d8/0x1580 [ 1803.053616][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1803.053616][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1803.053616][ T253] ipv6_add_addr+0x411/0x2000 [ 1803.053616][ T253] inet6_addr_add+0x30e/0xa40 [ 1803.053616][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1803.053616][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1803.053616][ T253] netlink_rcv_skb+0x130/0x360 [ 1803.053616][ T253] netlink_unicast+0x449/0x710 [ 1803.053616][ T253] netlink_sendmsg+0x723/0xbe0 [ 1803.053616][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1803.053616][ T253] ___sys_sendmsg+0xee/0x170 [ 1803.053616][ T253] __sys_sendmsg+0xcd/0x170 [ 1803.053616][ T253] do_syscall_64+0xc6/0x1e0 [ 1803.053616][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1803.053616][ T253] [ 1803.056175][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1803.056175][ T253] netdev_get_by_index+0x5e/0x80 [ 1803.056175][ T253] fib6_nh_init+0x3d8/0x1580 [ 1803.056175][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1803.056175][ T253] ip6_route_add+0x1c/0x140 [ 1803.056175][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1803.056175][ T253] addrconf_add_dev+0xe2/0x170 [ 1803.056175][ T253] inet6_addr_add+0x12f/0xa40 [ 1803.056175][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1803.056175][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1803.056175][ T253] netlink_rcv_skb+0x130/0x360 [ 1803.056175][ T253] netlink_unicast+0x449/0x710 [ 1803.056175][ T253] netlink_sendmsg+0x723/0xbe0 [ 1803.056175][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1803.056175][ T253] ___sys_sendmsg+0xee/0x170 [ 1803.056175][ T253] __sys_sendmsg+0xcd/0x170 [ 1803.056175][ T253] do_syscall_64+0xc6/0x1e0 [ 1803.056175][ T253] [ 1803.058379][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1803.058379][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1803.058379][ T253] ipv6_find_idev+0x102/0x170 [ 1803.058379][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1803.058379][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1803.058379][ T253] netlink_rcv_skb+0x130/0x360 [ 1803.058379][ T253] netlink_unicast+0x449/0x710 [ 1803.058379][ T253] netlink_sendmsg+0x723/0xbe0 [ 1803.058379][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1803.058379][ T253] ___sys_sendmsg+0xee/0x170 [ 1803.058379][ T253] __sys_sendmsg+0xcd/0x170 [ 1803.058379][ T253] do_syscall_64+0xc6/0x1e0 [ 1803.058379][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1803.058379][ T253] [ 1803.060102][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1803.060102][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1803.060102][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1803.060102][ T253] ipv6_find_idev+0x102/0x170 [ 1803.060102][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1803.060102][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1803.060102][ T253] netlink_rcv_skb+0x130/0x360 [ 1803.060102][ T253] netlink_unicast+0x449/0x710 [ 1803.060102][ T253] netlink_sendmsg+0x723/0xbe0 [ 1803.060102][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1803.060102][ T253] ___sys_sendmsg+0xee/0x170 [ 1803.060102][ T253] __sys_sendmsg+0xcd/0x170 [ 1803.060102][ T253] do_syscall_64+0xc6/0x1e0 [ 1803.060102][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1803.060102][ T253] [ 1813.298355][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1813.298965][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1813.298965][ T253] dst_init+0x84/0x4a0 [ 1813.298965][ T253] dst_alloc+0x97/0x150 [ 1813.298965][ T253] ip6_dst_alloc+0x23/0x90 [ 1813.298965][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1813.298965][ T253] ip6_pol_route+0x56f/0x840 [ 1813.298965][ T253] fib6_rule_lookup+0x334/0x630 [ 1813.298965][ T253] ip6_route_output_flags+0x259/0x480 [ 1813.298965][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1813.298965][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1813.298965][ T253] netlink_rcv_skb+0x130/0x360 [ 1813.298965][ T253] netlink_unicast+0x449/0x710 [ 1813.298965][ T253] netlink_sendmsg+0x723/0xbe0 [ 1813.298965][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1813.298965][ T253] ___sys_sendmsg+0xee/0x170 [ 1813.298965][ T253] __sys_sendmsg+0xcd/0x170 [ 1813.298965][ T253] do_syscall_64+0xc6/0x1e0 [ 1813.298965][ T253] [ 1813.301350][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1813.301350][ T253] netdev_get_by_index+0x5e/0x80 [ 1813.301350][ T253] fib6_nh_init+0x3d8/0x1580 [ 1813.301350][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1813.301350][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1813.301350][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1813.301350][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1813.301350][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1813.301350][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1813.301350][ T253] addrconf_dad_begin+0x310/0x670 [ 1813.301350][ T253] addrconf_dad_work+0x10b/0xab0 [ 1813.301350][ T253] process_one_work+0x84d/0x18a0 [ 1813.301350][ T253] worker_thread+0x587/0xd30 [ 1813.301350][ T253] kthread+0x28a/0x350 [ 1813.301350][ T253] ret_from_fork+0x31/0x70 [ 1813.301350][ T253] ret_from_fork_asm+0x1a/0x30 [ 1813.301350][ T253] [ 1813.303597][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1813.303597][ T253] netdev_get_by_index+0x5e/0x80 [ 1813.303597][ T253] fib6_nh_init+0x3d8/0x1580 [ 1813.303597][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1813.303597][ T253] ip6_route_add+0x1c/0x140 [ 1813.303597][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1813.303597][ T253] inet6_addr_add+0x4f8/0xa40 [ 1813.303597][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1813.303597][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1813.303597][ T253] netlink_rcv_skb+0x130/0x360 [ 1813.303597][ T253] netlink_unicast+0x449/0x710 [ 1813.303597][ T253] netlink_sendmsg+0x723/0xbe0 [ 1813.303597][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1813.303597][ T253] ___sys_sendmsg+0xee/0x170 [ 1813.303597][ T253] __sys_sendmsg+0xcd/0x170 [ 1813.303597][ T253] do_syscall_64+0xc6/0x1e0 [ 1813.303597][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1813.303597][ T253] [ 1813.305889][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1813.305889][ T253] netdev_get_by_index+0x5e/0x80 [ 1813.305889][ T253] fib6_nh_init+0x3d8/0x1580 [ 1813.305889][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1813.305889][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1813.305889][ T253] ipv6_add_addr+0x411/0x2000 [ 1813.305889][ T253] inet6_addr_add+0x30e/0xa40 [ 1813.305889][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1813.305889][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1813.305889][ T253] netlink_rcv_skb+0x130/0x360 [ 1813.305889][ T253] netlink_unicast+0x449/0x710 [ 1813.305889][ T253] netlink_sendmsg+0x723/0xbe0 [ 1813.305889][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1813.305889][ T253] ___sys_sendmsg+0xee/0x170 [ 1813.305889][ T253] __sys_sendmsg+0xcd/0x170 [ 1813.305889][ T253] do_syscall_64+0xc6/0x1e0 [ 1813.305889][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1813.305889][ T253] [ 1813.308183][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1813.308183][ T253] netdev_get_by_index+0x5e/0x80 [ 1813.308183][ T253] fib6_nh_init+0x3d8/0x1580 [ 1813.308183][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1813.308183][ T253] ip6_route_add+0x1c/0x140 [ 1813.308183][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1813.308183][ T253] addrconf_add_dev+0xe2/0x170 [ 1813.308183][ T253] inet6_addr_add+0x12f/0xa40 [ 1813.308183][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1813.308183][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1813.308183][ T253] netlink_rcv_skb+0x130/0x360 [ 1813.308183][ T253] netlink_unicast+0x449/0x710 [ 1813.308183][ T253] netlink_sendmsg+0x723/0xbe0 [ 1813.308183][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1813.308183][ T253] ___sys_sendmsg+0xee/0x170 [ 1813.308183][ T253] __sys_sendmsg+0xcd/0x170 [ 1813.308183][ T253] do_syscall_64+0xc6/0x1e0 [ 1813.308183][ T253] [ 1813.310446][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1813.310446][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1813.310446][ T253] ipv6_find_idev+0x102/0x170 [ 1813.310446][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1813.310446][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1813.310446][ T253] netlink_rcv_skb+0x130/0x360 [ 1813.310446][ T253] netlink_unicast+0x449/0x710 [ 1813.310446][ T253] netlink_sendmsg+0x723/0xbe0 [ 1813.310446][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1813.310446][ T253] ___sys_sendmsg+0xee/0x170 [ 1813.310446][ T253] __sys_sendmsg+0xcd/0x170 [ 1813.310446][ T253] do_syscall_64+0xc6/0x1e0 [ 1813.310446][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1813.310446][ T253] [ 1813.312214][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1813.312214][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1813.312214][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1813.312214][ T253] ipv6_find_idev+0x102/0x170 [ 1813.312214][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1813.312214][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1813.312214][ T253] netlink_rcv_skb+0x130/0x360 [ 1813.312214][ T253] netlink_unicast+0x449/0x710 [ 1813.312214][ T253] netlink_sendmsg+0x723/0xbe0 [ 1813.312214][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1813.312214][ T253] ___sys_sendmsg+0xee/0x170 [ 1813.312214][ T253] __sys_sendmsg+0xcd/0x170 [ 1813.312214][ T253] do_syscall_64+0xc6/0x1e0 [ 1813.312214][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1813.312214][ T253] [ 1823.554355][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1823.555093][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1823.555093][ T253] dst_init+0x84/0x4a0 [ 1823.555093][ T253] dst_alloc+0x97/0x150 [ 1823.555093][ T253] ip6_dst_alloc+0x23/0x90 [ 1823.555093][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1823.555093][ T253] ip6_pol_route+0x56f/0x840 [ 1823.555093][ T253] fib6_rule_lookup+0x334/0x630 [ 1823.555093][ T253] ip6_route_output_flags+0x259/0x480 [ 1823.555093][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1823.555093][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1823.555093][ T253] netlink_rcv_skb+0x130/0x360 [ 1823.555093][ T253] netlink_unicast+0x449/0x710 [ 1823.555093][ T253] netlink_sendmsg+0x723/0xbe0 [ 1823.555093][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1823.555093][ T253] ___sys_sendmsg+0xee/0x170 [ 1823.555093][ T253] __sys_sendmsg+0xcd/0x170 [ 1823.555093][ T253] do_syscall_64+0xc6/0x1e0 [ 1823.555093][ T253] [ 1823.558091][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1823.558091][ T253] netdev_get_by_index+0x5e/0x80 [ 1823.558091][ T253] fib6_nh_init+0x3d8/0x1580 [ 1823.558091][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1823.558091][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1823.558091][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1823.558091][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1823.558091][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1823.558091][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1823.558091][ T253] addrconf_dad_begin+0x310/0x670 [ 1823.558091][ T253] addrconf_dad_work+0x10b/0xab0 [ 1823.558091][ T253] process_one_work+0x84d/0x18a0 [ 1823.558091][ T253] worker_thread+0x587/0xd30 [ 1823.558091][ T253] kthread+0x28a/0x350 [ 1823.558091][ T253] ret_from_fork+0x31/0x70 [ 1823.558091][ T253] ret_from_fork_asm+0x1a/0x30 [ 1823.558091][ T253] [ 1823.561318][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1823.561318][ T253] netdev_get_by_index+0x5e/0x80 [ 1823.561318][ T253] fib6_nh_init+0x3d8/0x1580 [ 1823.561318][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1823.561318][ T253] ip6_route_add+0x1c/0x140 [ 1823.561318][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1823.561318][ T253] inet6_addr_add+0x4f8/0xa40 [ 1823.561318][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1823.561318][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1823.561318][ T253] netlink_rcv_skb+0x130/0x360 [ 1823.561318][ T253] netlink_unicast+0x449/0x710 [ 1823.561318][ T253] netlink_sendmsg+0x723/0xbe0 [ 1823.561318][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1823.561318][ T253] ___sys_sendmsg+0xee/0x170 [ 1823.561318][ T253] __sys_sendmsg+0xcd/0x170 [ 1823.561318][ T253] do_syscall_64+0xc6/0x1e0 [ 1823.561318][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1823.561318][ T253] [ 1823.564741][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1823.564741][ T253] netdev_get_by_index+0x5e/0x80 [ 1823.564741][ T253] fib6_nh_init+0x3d8/0x1580 [ 1823.564741][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1823.564741][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1823.564741][ T253] ipv6_add_addr+0x411/0x2000 [ 1823.564741][ T253] inet6_addr_add+0x30e/0xa40 [ 1823.564741][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1823.564741][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1823.564741][ T253] netlink_rcv_skb+0x130/0x360 [ 1823.564741][ T253] netlink_unicast+0x449/0x710 [ 1823.564741][ T253] netlink_sendmsg+0x723/0xbe0 [ 1823.564741][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1823.564741][ T253] ___sys_sendmsg+0xee/0x170 [ 1823.564741][ T253] __sys_sendmsg+0xcd/0x170 [ 1823.564741][ T253] do_syscall_64+0xc6/0x1e0 [ 1823.564741][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1823.564741][ T253] [ 1823.568199][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1823.568199][ T253] netdev_get_by_index+0x5e/0x80 [ 1823.568199][ T253] fib6_nh_init+0x3d8/0x1580 [ 1823.568199][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1823.568199][ T253] ip6_route_add+0x1c/0x140 [ 1823.568199][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1823.568199][ T253] addrconf_add_dev+0xe2/0x170 [ 1823.568199][ T253] inet6_addr_add+0x12f/0xa40 [ 1823.568199][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1823.568199][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1823.568199][ T253] netlink_rcv_skb+0x130/0x360 [ 1823.568199][ T253] netlink_unicast+0x449/0x710 [ 1823.568199][ T253] netlink_sendmsg+0x723/0xbe0 [ 1823.568199][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1823.568199][ T253] ___sys_sendmsg+0xee/0x170 [ 1823.568199][ T253] __sys_sendmsg+0xcd/0x170 [ 1823.568199][ T253] do_syscall_64+0xc6/0x1e0 [ 1823.568199][ T253] [ 1823.571584][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1823.571584][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1823.571584][ T253] ipv6_find_idev+0x102/0x170 [ 1823.571584][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1823.571584][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1823.571584][ T253] netlink_rcv_skb+0x130/0x360 [ 1823.571584][ T253] netlink_unicast+0x449/0x710 [ 1823.571584][ T253] netlink_sendmsg+0x723/0xbe0 [ 1823.571584][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1823.571584][ T253] ___sys_sendmsg+0xee/0x170 [ 1823.571584][ T253] __sys_sendmsg+0xcd/0x170 [ 1823.571584][ T253] do_syscall_64+0xc6/0x1e0 [ 1823.571584][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1823.571584][ T253] [ 1823.574223][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1823.574223][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1823.574223][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1823.574223][ T253] ipv6_find_idev+0x102/0x170 [ 1823.574223][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1823.574223][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1823.574223][ T253] netlink_rcv_skb+0x130/0x360 [ 1823.574223][ T253] netlink_unicast+0x449/0x710 [ 1823.574223][ T253] netlink_sendmsg+0x723/0xbe0 [ 1823.574223][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1823.574223][ T253] ___sys_sendmsg+0xee/0x170 [ 1823.574223][ T253] __sys_sendmsg+0xcd/0x170 [ 1823.574223][ T253] do_syscall_64+0xc6/0x1e0 [ 1823.574223][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1823.574223][ T253] [ 1833.818290][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1833.818828][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1833.818828][ T253] dst_init+0x84/0x4a0 [ 1833.818828][ T253] dst_alloc+0x97/0x150 [ 1833.818828][ T253] ip6_dst_alloc+0x23/0x90 [ 1833.818828][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1833.818828][ T253] ip6_pol_route+0x56f/0x840 [ 1833.818828][ T253] fib6_rule_lookup+0x334/0x630 [ 1833.818828][ T253] ip6_route_output_flags+0x259/0x480 [ 1833.818828][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1833.818828][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1833.818828][ T253] netlink_rcv_skb+0x130/0x360 [ 1833.818828][ T253] netlink_unicast+0x449/0x710 [ 1833.818828][ T253] netlink_sendmsg+0x723/0xbe0 [ 1833.818828][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1833.818828][ T253] ___sys_sendmsg+0xee/0x170 [ 1833.818828][ T253] __sys_sendmsg+0xcd/0x170 [ 1833.818828][ T253] do_syscall_64+0xc6/0x1e0 [ 1833.818828][ T253] [ 1833.821348][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1833.821348][ T253] netdev_get_by_index+0x5e/0x80 [ 1833.821348][ T253] fib6_nh_init+0x3d8/0x1580 [ 1833.821348][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1833.821348][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1833.821348][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1833.821348][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1833.821348][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1833.821348][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1833.821348][ T253] addrconf_dad_begin+0x310/0x670 [ 1833.821348][ T253] addrconf_dad_work+0x10b/0xab0 [ 1833.821348][ T253] process_one_work+0x84d/0x18a0 [ 1833.821348][ T253] worker_thread+0x587/0xd30 [ 1833.821348][ T253] kthread+0x28a/0x350 [ 1833.821348][ T253] ret_from_fork+0x31/0x70 [ 1833.821348][ T253] ret_from_fork_asm+0x1a/0x30 [ 1833.821348][ T253] [ 1833.823723][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1833.823723][ T253] netdev_get_by_index+0x5e/0x80 [ 1833.823723][ T253] fib6_nh_init+0x3d8/0x1580 [ 1833.823723][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1833.823723][ T253] ip6_route_add+0x1c/0x140 [ 1833.823723][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1833.823723][ T253] inet6_addr_add+0x4f8/0xa40 [ 1833.823723][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1833.823723][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1833.823723][ T253] netlink_rcv_skb+0x130/0x360 [ 1833.823723][ T253] netlink_unicast+0x449/0x710 [ 1833.823723][ T253] netlink_sendmsg+0x723/0xbe0 [ 1833.823723][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1833.823723][ T253] ___sys_sendmsg+0xee/0x170 [ 1833.823723][ T253] __sys_sendmsg+0xcd/0x170 [ 1833.823723][ T253] do_syscall_64+0xc6/0x1e0 [ 1833.823723][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1833.823723][ T253] [ 1833.826153][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1833.826153][ T253] netdev_get_by_index+0x5e/0x80 [ 1833.826153][ T253] fib6_nh_init+0x3d8/0x1580 [ 1833.826153][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1833.826153][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1833.826153][ T253] ipv6_add_addr+0x411/0x2000 [ 1833.826153][ T253] inet6_addr_add+0x30e/0xa40 [ 1833.826153][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1833.826153][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1833.826153][ T253] netlink_rcv_skb+0x130/0x360 [ 1833.826153][ T253] netlink_unicast+0x449/0x710 [ 1833.826153][ T253] netlink_sendmsg+0x723/0xbe0 [ 1833.826153][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1833.826153][ T253] ___sys_sendmsg+0xee/0x170 [ 1833.826153][ T253] __sys_sendmsg+0xcd/0x170 [ 1833.826153][ T253] do_syscall_64+0xc6/0x1e0 [ 1833.826153][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1833.826153][ T253] [ 1833.828629][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1833.828629][ T253] netdev_get_by_index+0x5e/0x80 [ 1833.828629][ T253] fib6_nh_init+0x3d8/0x1580 [ 1833.828629][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1833.828629][ T253] ip6_route_add+0x1c/0x140 [ 1833.828629][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1833.828629][ T253] addrconf_add_dev+0xe2/0x170 [ 1833.828629][ T253] inet6_addr_add+0x12f/0xa40 [ 1833.828629][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1833.828629][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1833.828629][ T253] netlink_rcv_skb+0x130/0x360 [ 1833.828629][ T253] netlink_unicast+0x449/0x710 [ 1833.828629][ T253] netlink_sendmsg+0x723/0xbe0 [ 1833.828629][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1833.828629][ T253] ___sys_sendmsg+0xee/0x170 [ 1833.828629][ T253] __sys_sendmsg+0xcd/0x170 [ 1833.828629][ T253] do_syscall_64+0xc6/0x1e0 [ 1833.828629][ T253] [ 1833.831076][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1833.831076][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1833.831076][ T253] ipv6_find_idev+0x102/0x170 [ 1833.831076][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1833.831076][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1833.831076][ T253] netlink_rcv_skb+0x130/0x360 [ 1833.831076][ T253] netlink_unicast+0x449/0x710 [ 1833.831076][ T253] netlink_sendmsg+0x723/0xbe0 [ 1833.831076][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1833.831076][ T253] ___sys_sendmsg+0xee/0x170 [ 1833.831076][ T253] __sys_sendmsg+0xcd/0x170 [ 1833.831076][ T253] do_syscall_64+0xc6/0x1e0 [ 1833.831076][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1833.831076][ T253] [ 1833.833005][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1833.833005][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1833.833005][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1833.833005][ T253] ipv6_find_idev+0x102/0x170 [ 1833.833005][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1833.833005][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1833.833005][ T253] netlink_rcv_skb+0x130/0x360 [ 1833.833005][ T253] netlink_unicast+0x449/0x710 [ 1833.833005][ T253] netlink_sendmsg+0x723/0xbe0 [ 1833.833005][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1833.833005][ T253] ___sys_sendmsg+0xee/0x170 [ 1833.833005][ T253] __sys_sendmsg+0xcd/0x170 [ 1833.833005][ T253] do_syscall_64+0xc6/0x1e0 [ 1833.833005][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1833.833005][ T253] [ 1844.082340][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1844.082875][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1844.082875][ T253] dst_init+0x84/0x4a0 [ 1844.082875][ T253] dst_alloc+0x97/0x150 [ 1844.082875][ T253] ip6_dst_alloc+0x23/0x90 [ 1844.082875][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1844.082875][ T253] ip6_pol_route+0x56f/0x840 [ 1844.082875][ T253] fib6_rule_lookup+0x334/0x630 [ 1844.082875][ T253] ip6_route_output_flags+0x259/0x480 [ 1844.082875][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1844.082875][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1844.082875][ T253] netlink_rcv_skb+0x130/0x360 [ 1844.082875][ T253] netlink_unicast+0x449/0x710 [ 1844.082875][ T253] netlink_sendmsg+0x723/0xbe0 [ 1844.082875][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1844.082875][ T253] ___sys_sendmsg+0xee/0x170 [ 1844.082875][ T253] __sys_sendmsg+0xcd/0x170 [ 1844.082875][ T253] do_syscall_64+0xc6/0x1e0 [ 1844.082875][ T253] [ 1844.085079][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1844.085079][ T253] netdev_get_by_index+0x5e/0x80 [ 1844.085079][ T253] fib6_nh_init+0x3d8/0x1580 [ 1844.085079][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1844.085079][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1844.085079][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1844.085079][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1844.085079][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1844.085079][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1844.085079][ T253] addrconf_dad_begin+0x310/0x670 [ 1844.085079][ T253] addrconf_dad_work+0x10b/0xab0 [ 1844.085079][ T253] process_one_work+0x84d/0x18a0 [ 1844.085079][ T253] worker_thread+0x587/0xd30 [ 1844.085079][ T253] kthread+0x28a/0x350 [ 1844.085079][ T253] ret_from_fork+0x31/0x70 [ 1844.085079][ T253] ret_from_fork_asm+0x1a/0x30 [ 1844.085079][ T253] [ 1844.087190][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1844.087190][ T253] netdev_get_by_index+0x5e/0x80 [ 1844.087190][ T253] fib6_nh_init+0x3d8/0x1580 [ 1844.087190][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1844.087190][ T253] ip6_route_add+0x1c/0x140 [ 1844.087190][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1844.087190][ T253] inet6_addr_add+0x4f8/0xa40 [ 1844.087190][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1844.087190][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1844.087190][ T253] netlink_rcv_skb+0x130/0x360 [ 1844.087190][ T253] netlink_unicast+0x449/0x710 [ 1844.087190][ T253] netlink_sendmsg+0x723/0xbe0 [ 1844.087190][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1844.087190][ T253] ___sys_sendmsg+0xee/0x170 [ 1844.087190][ T253] __sys_sendmsg+0xcd/0x170 [ 1844.087190][ T253] do_syscall_64+0xc6/0x1e0 [ 1844.087190][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1844.087190][ T253] [ 1844.089397][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1844.089397][ T253] netdev_get_by_index+0x5e/0x80 [ 1844.089397][ T253] fib6_nh_init+0x3d8/0x1580 [ 1844.089397][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1844.089397][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1844.089397][ T253] ipv6_add_addr+0x411/0x2000 [ 1844.089397][ T253] inet6_addr_add+0x30e/0xa40 [ 1844.089397][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1844.089397][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1844.089397][ T253] netlink_rcv_skb+0x130/0x360 [ 1844.089397][ T253] netlink_unicast+0x449/0x710 [ 1844.089397][ T253] netlink_sendmsg+0x723/0xbe0 [ 1844.089397][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1844.089397][ T253] ___sys_sendmsg+0xee/0x170 [ 1844.089397][ T253] __sys_sendmsg+0xcd/0x170 [ 1844.089397][ T253] do_syscall_64+0xc6/0x1e0 [ 1844.089397][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1844.089397][ T253] [ 1844.091667][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1844.091667][ T253] netdev_get_by_index+0x5e/0x80 [ 1844.091667][ T253] fib6_nh_init+0x3d8/0x1580 [ 1844.091667][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1844.091667][ T253] ip6_route_add+0x1c/0x140 [ 1844.091667][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1844.091667][ T253] addrconf_add_dev+0xe2/0x170 [ 1844.091667][ T253] inet6_addr_add+0x12f/0xa40 [ 1844.091667][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1844.091667][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1844.091667][ T253] netlink_rcv_skb+0x130/0x360 [ 1844.091667][ T253] netlink_unicast+0x449/0x710 [ 1844.091667][ T253] netlink_sendmsg+0x723/0xbe0 [ 1844.091667][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1844.091667][ T253] ___sys_sendmsg+0xee/0x170 [ 1844.091667][ T253] __sys_sendmsg+0xcd/0x170 [ 1844.091667][ T253] do_syscall_64+0xc6/0x1e0 [ 1844.091667][ T253] [ 1844.093845][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1844.093845][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1844.093845][ T253] ipv6_find_idev+0x102/0x170 [ 1844.093845][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1844.093845][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1844.093845][ T253] netlink_rcv_skb+0x130/0x360 [ 1844.093845][ T253] netlink_unicast+0x449/0x710 [ 1844.093845][ T253] netlink_sendmsg+0x723/0xbe0 [ 1844.093845][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1844.093845][ T253] ___sys_sendmsg+0xee/0x170 [ 1844.093845][ T253] __sys_sendmsg+0xcd/0x170 [ 1844.093845][ T253] do_syscall_64+0xc6/0x1e0 [ 1844.093845][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1844.093845][ T253] [ 1844.095545][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1844.095545][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1844.095545][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1844.095545][ T253] ipv6_find_idev+0x102/0x170 [ 1844.095545][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1844.095545][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1844.095545][ T253] netlink_rcv_skb+0x130/0x360 [ 1844.095545][ T253] netlink_unicast+0x449/0x710 [ 1844.095545][ T253] netlink_sendmsg+0x723/0xbe0 [ 1844.095545][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1844.095545][ T253] ___sys_sendmsg+0xee/0x170 [ 1844.095545][ T253] __sys_sendmsg+0xcd/0x170 [ 1844.095545][ T253] do_syscall_64+0xc6/0x1e0 [ 1844.095545][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1844.095545][ T253] [ 1854.338307][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1854.338979][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1854.338979][ T253] dst_init+0x84/0x4a0 [ 1854.338979][ T253] dst_alloc+0x97/0x150 [ 1854.338979][ T253] ip6_dst_alloc+0x23/0x90 [ 1854.338979][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1854.338979][ T253] ip6_pol_route+0x56f/0x840 [ 1854.338979][ T253] fib6_rule_lookup+0x334/0x630 [ 1854.338979][ T253] ip6_route_output_flags+0x259/0x480 [ 1854.338979][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1854.338979][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1854.338979][ T253] netlink_rcv_skb+0x130/0x360 [ 1854.338979][ T253] netlink_unicast+0x449/0x710 [ 1854.338979][ T253] netlink_sendmsg+0x723/0xbe0 [ 1854.338979][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1854.338979][ T253] ___sys_sendmsg+0xee/0x170 [ 1854.338979][ T253] __sys_sendmsg+0xcd/0x170 [ 1854.338979][ T253] do_syscall_64+0xc6/0x1e0 [ 1854.338979][ T253] [ 1854.342482][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1854.342482][ T253] netdev_get_by_index+0x5e/0x80 [ 1854.342482][ T253] fib6_nh_init+0x3d8/0x1580 [ 1854.342482][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1854.342482][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1854.342482][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1854.342482][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1854.342482][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1854.342482][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1854.342482][ T253] addrconf_dad_begin+0x310/0x670 [ 1854.342482][ T253] addrconf_dad_work+0x10b/0xab0 [ 1854.342482][ T253] process_one_work+0x84d/0x18a0 [ 1854.342482][ T253] worker_thread+0x587/0xd30 [ 1854.342482][ T253] kthread+0x28a/0x350 [ 1854.342482][ T253] ret_from_fork+0x31/0x70 [ 1854.342482][ T253] ret_from_fork_asm+0x1a/0x30 [ 1854.342482][ T253] [ 1854.345815][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1854.345815][ T253] netdev_get_by_index+0x5e/0x80 [ 1854.345815][ T253] fib6_nh_init+0x3d8/0x1580 [ 1854.345815][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1854.345815][ T253] ip6_route_add+0x1c/0x140 [ 1854.345815][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1854.345815][ T253] inet6_addr_add+0x4f8/0xa40 [ 1854.345815][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1854.345815][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1854.345815][ T253] netlink_rcv_skb+0x130/0x360 [ 1854.345815][ T253] netlink_unicast+0x449/0x710 [ 1854.345815][ T253] netlink_sendmsg+0x723/0xbe0 [ 1854.345815][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1854.345815][ T253] ___sys_sendmsg+0xee/0x170 [ 1854.345815][ T253] __sys_sendmsg+0xcd/0x170 [ 1854.345815][ T253] do_syscall_64+0xc6/0x1e0 [ 1854.345815][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1854.345815][ T253] [ 1854.349411][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1854.349411][ T253] netdev_get_by_index+0x5e/0x80 [ 1854.349411][ T253] fib6_nh_init+0x3d8/0x1580 [ 1854.349411][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1854.349411][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1854.349411][ T253] ipv6_add_addr+0x411/0x2000 [ 1854.349411][ T253] inet6_addr_add+0x30e/0xa40 [ 1854.349411][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1854.349411][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1854.349411][ T253] netlink_rcv_skb+0x130/0x360 [ 1854.349411][ T253] netlink_unicast+0x449/0x710 [ 1854.349411][ T253] netlink_sendmsg+0x723/0xbe0 [ 1854.349411][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1854.349411][ T253] ___sys_sendmsg+0xee/0x170 [ 1854.349411][ T253] __sys_sendmsg+0xcd/0x170 [ 1854.349411][ T253] do_syscall_64+0xc6/0x1e0 [ 1854.349411][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1854.349411][ T253] [ 1854.353180][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1854.353180][ T253] netdev_get_by_index+0x5e/0x80 [ 1854.353180][ T253] fib6_nh_init+0x3d8/0x1580 [ 1854.353180][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1854.353180][ T253] ip6_route_add+0x1c/0x140 [ 1854.353180][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1854.353180][ T253] addrconf_add_dev+0xe2/0x170 [ 1854.353180][ T253] inet6_addr_add+0x12f/0xa40 [ 1854.353180][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1854.353180][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1854.353180][ T253] netlink_rcv_skb+0x130/0x360 [ 1854.353180][ T253] netlink_unicast+0x449/0x710 [ 1854.353180][ T253] netlink_sendmsg+0x723/0xbe0 [ 1854.353180][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1854.353180][ T253] ___sys_sendmsg+0xee/0x170 [ 1854.353180][ T253] __sys_sendmsg+0xcd/0x170 [ 1854.353180][ T253] do_syscall_64+0xc6/0x1e0 [ 1854.353180][ T253] [ 1854.357884][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1854.357884][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1854.357884][ T253] ipv6_find_idev+0x102/0x170 [ 1854.357884][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1854.357884][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1854.357884][ T253] netlink_rcv_skb+0x130/0x360 [ 1854.357884][ T253] netlink_unicast+0x449/0x710 [ 1854.357884][ T253] netlink_sendmsg+0x723/0xbe0 [ 1854.357884][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1854.357884][ T253] ___sys_sendmsg+0xee/0x170 [ 1854.357884][ T253] __sys_sendmsg+0xcd/0x170 [ 1854.357884][ T253] do_syscall_64+0xc6/0x1e0 [ 1854.357884][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1854.357884][ T253] [ 1854.360990][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1854.360990][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1854.360990][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1854.360990][ T253] ipv6_find_idev+0x102/0x170 [ 1854.360990][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1854.360990][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1854.360990][ T253] netlink_rcv_skb+0x130/0x360 [ 1854.360990][ T253] netlink_unicast+0x449/0x710 [ 1854.360990][ T253] netlink_sendmsg+0x723/0xbe0 [ 1854.360990][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1854.360990][ T253] ___sys_sendmsg+0xee/0x170 [ 1854.360990][ T253] __sys_sendmsg+0xcd/0x170 [ 1854.360990][ T253] do_syscall_64+0xc6/0x1e0 [ 1854.360990][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1854.360990][ T253] [ 1864.474344][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1864.474852][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1864.474852][ T253] dst_init+0x84/0x4a0 [ 1864.474852][ T253] dst_alloc+0x97/0x150 [ 1864.474852][ T253] ip6_dst_alloc+0x23/0x90 [ 1864.474852][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1864.474852][ T253] ip6_pol_route+0x56f/0x840 [ 1864.474852][ T253] fib6_rule_lookup+0x334/0x630 [ 1864.474852][ T253] ip6_route_output_flags+0x259/0x480 [ 1864.474852][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1864.474852][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1864.474852][ T253] netlink_rcv_skb+0x130/0x360 [ 1864.474852][ T253] netlink_unicast+0x449/0x710 [ 1864.474852][ T253] netlink_sendmsg+0x723/0xbe0 [ 1864.474852][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1864.474852][ T253] ___sys_sendmsg+0xee/0x170 [ 1864.474852][ T253] __sys_sendmsg+0xcd/0x170 [ 1864.474852][ T253] do_syscall_64+0xc6/0x1e0 [ 1864.474852][ T253] [ 1864.477307][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1864.477307][ T253] netdev_get_by_index+0x5e/0x80 [ 1864.477307][ T253] fib6_nh_init+0x3d8/0x1580 [ 1864.477307][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1864.477307][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1864.477307][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1864.477307][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1864.477307][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1864.477307][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1864.477307][ T253] addrconf_dad_begin+0x310/0x670 [ 1864.477307][ T253] addrconf_dad_work+0x10b/0xab0 [ 1864.477307][ T253] process_one_work+0x84d/0x18a0 [ 1864.477307][ T253] worker_thread+0x587/0xd30 [ 1864.477307][ T253] kthread+0x28a/0x350 [ 1864.477307][ T253] ret_from_fork+0x31/0x70 [ 1864.477307][ T253] ret_from_fork_asm+0x1a/0x30 [ 1864.477307][ T253] [ 1864.479708][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1864.479708][ T253] netdev_get_by_index+0x5e/0x80 [ 1864.479708][ T253] fib6_nh_init+0x3d8/0x1580 [ 1864.479708][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1864.479708][ T253] ip6_route_add+0x1c/0x140 [ 1864.479708][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1864.479708][ T253] inet6_addr_add+0x4f8/0xa40 [ 1864.479708][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1864.479708][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1864.479708][ T253] netlink_rcv_skb+0x130/0x360 [ 1864.479708][ T253] netlink_unicast+0x449/0x710 [ 1864.479708][ T253] netlink_sendmsg+0x723/0xbe0 [ 1864.479708][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1864.479708][ T253] ___sys_sendmsg+0xee/0x170 [ 1864.479708][ T253] __sys_sendmsg+0xcd/0x170 [ 1864.479708][ T253] do_syscall_64+0xc6/0x1e0 [ 1864.479708][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1864.479708][ T253] [ 1864.482235][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1864.482235][ T253] netdev_get_by_index+0x5e/0x80 [ 1864.482235][ T253] fib6_nh_init+0x3d8/0x1580 [ 1864.482235][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1864.482235][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1864.482235][ T253] ipv6_add_addr+0x411/0x2000 [ 1864.482235][ T253] inet6_addr_add+0x30e/0xa40 [ 1864.482235][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1864.482235][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1864.482235][ T253] netlink_rcv_skb+0x130/0x360 [ 1864.482235][ T253] netlink_unicast+0x449/0x710 [ 1864.482235][ T253] netlink_sendmsg+0x723/0xbe0 [ 1864.482235][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1864.482235][ T253] ___sys_sendmsg+0xee/0x170 [ 1864.482235][ T253] __sys_sendmsg+0xcd/0x170 [ 1864.482235][ T253] do_syscall_64+0xc6/0x1e0 [ 1864.482235][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1864.482235][ T253] [ 1864.484739][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1864.484739][ T253] netdev_get_by_index+0x5e/0x80 [ 1864.484739][ T253] fib6_nh_init+0x3d8/0x1580 [ 1864.484739][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1864.484739][ T253] ip6_route_add+0x1c/0x140 [ 1864.484739][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1864.484739][ T253] addrconf_add_dev+0xe2/0x170 [ 1864.484739][ T253] inet6_addr_add+0x12f/0xa40 [ 1864.484739][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1864.484739][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1864.484739][ T253] netlink_rcv_skb+0x130/0x360 [ 1864.484739][ T253] netlink_unicast+0x449/0x710 [ 1864.484739][ T253] netlink_sendmsg+0x723/0xbe0 [ 1864.484739][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1864.484739][ T253] ___sys_sendmsg+0xee/0x170 [ 1864.484739][ T253] __sys_sendmsg+0xcd/0x170 [ 1864.484739][ T253] do_syscall_64+0xc6/0x1e0 [ 1864.484739][ T253] [ 1864.487189][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1864.487189][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1864.487189][ T253] ipv6_find_idev+0x102/0x170 [ 1864.487189][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1864.487189][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1864.487189][ T253] netlink_rcv_skb+0x130/0x360 [ 1864.487189][ T253] netlink_unicast+0x449/0x710 [ 1864.487189][ T253] netlink_sendmsg+0x723/0xbe0 [ 1864.487189][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1864.487189][ T253] ___sys_sendmsg+0xee/0x170 [ 1864.487189][ T253] __sys_sendmsg+0xcd/0x170 [ 1864.487189][ T253] do_syscall_64+0xc6/0x1e0 [ 1864.487189][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1864.487189][ T253] [ 1864.489139][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1864.489139][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1864.489139][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1864.489139][ T253] ipv6_find_idev+0x102/0x170 [ 1864.489139][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1864.489139][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1864.489139][ T253] netlink_rcv_skb+0x130/0x360 [ 1864.489139][ T253] netlink_unicast+0x449/0x710 [ 1864.489139][ T253] netlink_sendmsg+0x723/0xbe0 [ 1864.489139][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1864.489139][ T253] ___sys_sendmsg+0xee/0x170 [ 1864.489139][ T253] __sys_sendmsg+0xcd/0x170 [ 1864.489139][ T253] do_syscall_64+0xc6/0x1e0 [ 1864.489139][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1864.489139][ T253] [ 1874.730311][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1874.730845][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1874.730845][ T253] dst_init+0x84/0x4a0 [ 1874.730845][ T253] dst_alloc+0x97/0x150 [ 1874.730845][ T253] ip6_dst_alloc+0x23/0x90 [ 1874.730845][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1874.730845][ T253] ip6_pol_route+0x56f/0x840 [ 1874.730845][ T253] fib6_rule_lookup+0x334/0x630 [ 1874.730845][ T253] ip6_route_output_flags+0x259/0x480 [ 1874.730845][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1874.730845][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1874.730845][ T253] netlink_rcv_skb+0x130/0x360 [ 1874.730845][ T253] netlink_unicast+0x449/0x710 [ 1874.730845][ T253] netlink_sendmsg+0x723/0xbe0 [ 1874.730845][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1874.730845][ T253] ___sys_sendmsg+0xee/0x170 [ 1874.730845][ T253] __sys_sendmsg+0xcd/0x170 [ 1874.730845][ T253] do_syscall_64+0xc6/0x1e0 [ 1874.730845][ T253] [ 1874.733041][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1874.733041][ T253] netdev_get_by_index+0x5e/0x80 [ 1874.733041][ T253] fib6_nh_init+0x3d8/0x1580 [ 1874.733041][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1874.733041][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1874.733041][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1874.733041][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1874.733041][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1874.733041][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1874.733041][ T253] addrconf_dad_begin+0x310/0x670 [ 1874.733041][ T253] addrconf_dad_work+0x10b/0xab0 [ 1874.733041][ T253] process_one_work+0x84d/0x18a0 [ 1874.733041][ T253] worker_thread+0x587/0xd30 [ 1874.733041][ T253] kthread+0x28a/0x350 [ 1874.733041][ T253] ret_from_fork+0x31/0x70 [ 1874.733041][ T253] ret_from_fork_asm+0x1a/0x30 [ 1874.733041][ T253] [ 1874.735166][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1874.735166][ T253] netdev_get_by_index+0x5e/0x80 [ 1874.735166][ T253] fib6_nh_init+0x3d8/0x1580 [ 1874.735166][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1874.735166][ T253] ip6_route_add+0x1c/0x140 [ 1874.735166][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1874.735166][ T253] inet6_addr_add+0x4f8/0xa40 [ 1874.735166][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1874.735166][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1874.735166][ T253] netlink_rcv_skb+0x130/0x360 [ 1874.735166][ T253] netlink_unicast+0x449/0x710 [ 1874.735166][ T253] netlink_sendmsg+0x723/0xbe0 [ 1874.735166][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1874.735166][ T253] ___sys_sendmsg+0xee/0x170 [ 1874.735166][ T253] __sys_sendmsg+0xcd/0x170 [ 1874.735166][ T253] do_syscall_64+0xc6/0x1e0 [ 1874.735166][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1874.735166][ T253] [ 1874.737420][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1874.737420][ T253] netdev_get_by_index+0x5e/0x80 [ 1874.737420][ T253] fib6_nh_init+0x3d8/0x1580 [ 1874.737420][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1874.737420][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1874.737420][ T253] ipv6_add_addr+0x411/0x2000 [ 1874.737420][ T253] inet6_addr_add+0x30e/0xa40 [ 1874.737420][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1874.737420][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1874.737420][ T253] netlink_rcv_skb+0x130/0x360 [ 1874.737420][ T253] netlink_unicast+0x449/0x710 [ 1874.737420][ T253] netlink_sendmsg+0x723/0xbe0 [ 1874.737420][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1874.737420][ T253] ___sys_sendmsg+0xee/0x170 [ 1874.737420][ T253] __sys_sendmsg+0xcd/0x170 [ 1874.737420][ T253] do_syscall_64+0xc6/0x1e0 [ 1874.737420][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1874.737420][ T253] [ 1874.739653][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1874.739653][ T253] netdev_get_by_index+0x5e/0x80 [ 1874.739653][ T253] fib6_nh_init+0x3d8/0x1580 [ 1874.739653][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1874.739653][ T253] ip6_route_add+0x1c/0x140 [ 1874.739653][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1874.739653][ T253] addrconf_add_dev+0xe2/0x170 [ 1874.739653][ T253] inet6_addr_add+0x12f/0xa40 [ 1874.739653][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1874.739653][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1874.739653][ T253] netlink_rcv_skb+0x130/0x360 [ 1874.739653][ T253] netlink_unicast+0x449/0x710 [ 1874.739653][ T253] netlink_sendmsg+0x723/0xbe0 [ 1874.739653][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1874.739653][ T253] ___sys_sendmsg+0xee/0x170 [ 1874.739653][ T253] __sys_sendmsg+0xcd/0x170 [ 1874.739653][ T253] do_syscall_64+0xc6/0x1e0 [ 1874.739653][ T253] [ 1874.741887][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1874.741887][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1874.741887][ T253] ipv6_find_idev+0x102/0x170 [ 1874.741887][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1874.741887][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1874.741887][ T253] netlink_rcv_skb+0x130/0x360 [ 1874.741887][ T253] netlink_unicast+0x449/0x710 [ 1874.741887][ T253] netlink_sendmsg+0x723/0xbe0 [ 1874.741887][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1874.741887][ T253] ___sys_sendmsg+0xee/0x170 [ 1874.741887][ T253] __sys_sendmsg+0xcd/0x170 [ 1874.741887][ T253] do_syscall_64+0xc6/0x1e0 [ 1874.741887][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1874.741887][ T253] [ 1874.743603][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1874.743603][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1874.743603][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1874.743603][ T253] ipv6_find_idev+0x102/0x170 [ 1874.743603][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1874.743603][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1874.743603][ T253] netlink_rcv_skb+0x130/0x360 [ 1874.743603][ T253] netlink_unicast+0x449/0x710 [ 1874.743603][ T253] netlink_sendmsg+0x723/0xbe0 [ 1874.743603][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1874.743603][ T253] ___sys_sendmsg+0xee/0x170 [ 1874.743603][ T253] __sys_sendmsg+0xcd/0x170 [ 1874.743603][ T253] do_syscall_64+0xc6/0x1e0 [ 1874.743603][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1874.743603][ T253] [ 1884.938329][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1884.938828][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1884.938828][ T253] dst_init+0x84/0x4a0 [ 1884.938828][ T253] dst_alloc+0x97/0x150 [ 1884.938828][ T253] ip6_dst_alloc+0x23/0x90 [ 1884.938828][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1884.938828][ T253] ip6_pol_route+0x56f/0x840 [ 1884.938828][ T253] fib6_rule_lookup+0x334/0x630 [ 1884.938828][ T253] ip6_route_output_flags+0x259/0x480 [ 1884.938828][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1884.938828][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1884.938828][ T253] netlink_rcv_skb+0x130/0x360 [ 1884.938828][ T253] netlink_unicast+0x449/0x710 [ 1884.938828][ T253] netlink_sendmsg+0x723/0xbe0 [ 1884.938828][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1884.938828][ T253] ___sys_sendmsg+0xee/0x170 [ 1884.938828][ T253] __sys_sendmsg+0xcd/0x170 [ 1884.938828][ T253] do_syscall_64+0xc6/0x1e0 [ 1884.938828][ T253] [ 1884.941076][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1884.941076][ T253] netdev_get_by_index+0x5e/0x80 [ 1884.941076][ T253] fib6_nh_init+0x3d8/0x1580 [ 1884.941076][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1884.941076][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1884.941076][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1884.941076][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1884.941076][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1884.941076][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1884.941076][ T253] addrconf_dad_begin+0x310/0x670 [ 1884.941076][ T253] addrconf_dad_work+0x10b/0xab0 [ 1884.941076][ T253] process_one_work+0x84d/0x18a0 [ 1884.941076][ T253] worker_thread+0x587/0xd30 [ 1884.941076][ T253] kthread+0x28a/0x350 [ 1884.941076][ T253] ret_from_fork+0x31/0x70 [ 1884.941076][ T253] ret_from_fork_asm+0x1a/0x30 [ 1884.941076][ T253] [ 1884.943209][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1884.943209][ T253] netdev_get_by_index+0x5e/0x80 [ 1884.943209][ T253] fib6_nh_init+0x3d8/0x1580 [ 1884.943209][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1884.943209][ T253] ip6_route_add+0x1c/0x140 [ 1884.943209][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1884.943209][ T253] inet6_addr_add+0x4f8/0xa40 [ 1884.943209][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1884.943209][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1884.943209][ T253] netlink_rcv_skb+0x130/0x360 [ 1884.943209][ T253] netlink_unicast+0x449/0x710 [ 1884.943209][ T253] netlink_sendmsg+0x723/0xbe0 [ 1884.943209][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1884.943209][ T253] ___sys_sendmsg+0xee/0x170 [ 1884.943209][ T253] __sys_sendmsg+0xcd/0x170 [ 1884.943209][ T253] do_syscall_64+0xc6/0x1e0 [ 1884.943209][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1884.943209][ T253] [ 1884.945413][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1884.945413][ T253] netdev_get_by_index+0x5e/0x80 [ 1884.945413][ T253] fib6_nh_init+0x3d8/0x1580 [ 1884.945413][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1884.945413][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1884.945413][ T253] ipv6_add_addr+0x411/0x2000 [ 1884.945413][ T253] inet6_addr_add+0x30e/0xa40 [ 1884.945413][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1884.945413][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1884.945413][ T253] netlink_rcv_skb+0x130/0x360 [ 1884.945413][ T253] netlink_unicast+0x449/0x710 [ 1884.945413][ T253] netlink_sendmsg+0x723/0xbe0 [ 1884.945413][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1884.945413][ T253] ___sys_sendmsg+0xee/0x170 [ 1884.945413][ T253] __sys_sendmsg+0xcd/0x170 [ 1884.945413][ T253] do_syscall_64+0xc6/0x1e0 [ 1884.945413][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1884.945413][ T253] [ 1884.947617][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1884.947617][ T253] netdev_get_by_index+0x5e/0x80 [ 1884.947617][ T253] fib6_nh_init+0x3d8/0x1580 [ 1884.947617][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1884.947617][ T253] ip6_route_add+0x1c/0x140 [ 1884.947617][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1884.947617][ T253] addrconf_add_dev+0xe2/0x170 [ 1884.947617][ T253] inet6_addr_add+0x12f/0xa40 [ 1884.947617][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1884.947617][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1884.947617][ T253] netlink_rcv_skb+0x130/0x360 [ 1884.947617][ T253] netlink_unicast+0x449/0x710 [ 1884.947617][ T253] netlink_sendmsg+0x723/0xbe0 [ 1884.947617][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1884.947617][ T253] ___sys_sendmsg+0xee/0x170 [ 1884.947617][ T253] __sys_sendmsg+0xcd/0x170 [ 1884.947617][ T253] do_syscall_64+0xc6/0x1e0 [ 1884.947617][ T253] [ 1884.949780][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1884.949780][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1884.949780][ T253] ipv6_find_idev+0x102/0x170 [ 1884.949780][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1884.949780][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1884.949780][ T253] netlink_rcv_skb+0x130/0x360 [ 1884.949780][ T253] netlink_unicast+0x449/0x710 [ 1884.949780][ T253] netlink_sendmsg+0x723/0xbe0 [ 1884.949780][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1884.949780][ T253] ___sys_sendmsg+0xee/0x170 [ 1884.949780][ T253] __sys_sendmsg+0xcd/0x170 [ 1884.949780][ T253] do_syscall_64+0xc6/0x1e0 [ 1884.949780][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1884.949780][ T253] [ 1884.951538][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1884.951538][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1884.951538][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1884.951538][ T253] ipv6_find_idev+0x102/0x170 [ 1884.951538][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1884.951538][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1884.951538][ T253] netlink_rcv_skb+0x130/0x360 [ 1884.951538][ T253] netlink_unicast+0x449/0x710 [ 1884.951538][ T253] netlink_sendmsg+0x723/0xbe0 [ 1884.951538][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1884.951538][ T253] ___sys_sendmsg+0xee/0x170 [ 1884.951538][ T253] __sys_sendmsg+0xcd/0x170 [ 1884.951538][ T253] do_syscall_64+0xc6/0x1e0 [ 1884.951538][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1884.951538][ T253] [ 1895.106349][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1895.106843][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1895.106843][ T253] dst_init+0x84/0x4a0 [ 1895.106843][ T253] dst_alloc+0x97/0x150 [ 1895.106843][ T253] ip6_dst_alloc+0x23/0x90 [ 1895.106843][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1895.106843][ T253] ip6_pol_route+0x56f/0x840 [ 1895.106843][ T253] fib6_rule_lookup+0x334/0x630 [ 1895.106843][ T253] ip6_route_output_flags+0x259/0x480 [ 1895.106843][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1895.106843][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1895.106843][ T253] netlink_rcv_skb+0x130/0x360 [ 1895.106843][ T253] netlink_unicast+0x449/0x710 [ 1895.106843][ T253] netlink_sendmsg+0x723/0xbe0 [ 1895.106843][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1895.106843][ T253] ___sys_sendmsg+0xee/0x170 [ 1895.106843][ T253] __sys_sendmsg+0xcd/0x170 [ 1895.106843][ T253] do_syscall_64+0xc6/0x1e0 [ 1895.106843][ T253] [ 1895.109014][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1895.109014][ T253] netdev_get_by_index+0x5e/0x80 [ 1895.109014][ T253] fib6_nh_init+0x3d8/0x1580 [ 1895.109014][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1895.109014][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1895.109014][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1895.109014][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1895.109014][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1895.109014][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1895.109014][ T253] addrconf_dad_begin+0x310/0x670 [ 1895.109014][ T253] addrconf_dad_work+0x10b/0xab0 [ 1895.109014][ T253] process_one_work+0x84d/0x18a0 [ 1895.109014][ T253] worker_thread+0x587/0xd30 [ 1895.109014][ T253] kthread+0x28a/0x350 [ 1895.109014][ T253] ret_from_fork+0x31/0x70 [ 1895.109014][ T253] ret_from_fork_asm+0x1a/0x30 [ 1895.109014][ T253] [ 1895.111278][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1895.111278][ T253] netdev_get_by_index+0x5e/0x80 [ 1895.111278][ T253] fib6_nh_init+0x3d8/0x1580 [ 1895.111278][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1895.111278][ T253] ip6_route_add+0x1c/0x140 [ 1895.111278][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1895.111278][ T253] inet6_addr_add+0x4f8/0xa40 [ 1895.111278][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1895.111278][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1895.111278][ T253] netlink_rcv_skb+0x130/0x360 [ 1895.111278][ T253] netlink_unicast+0x449/0x710 [ 1895.111278][ T253] netlink_sendmsg+0x723/0xbe0 [ 1895.111278][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1895.111278][ T253] ___sys_sendmsg+0xee/0x170 [ 1895.111278][ T253] __sys_sendmsg+0xcd/0x170 [ 1895.111278][ T253] do_syscall_64+0xc6/0x1e0 [ 1895.111278][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1895.111278][ T253] [ 1895.113545][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1895.113545][ T253] netdev_get_by_index+0x5e/0x80 [ 1895.113545][ T253] fib6_nh_init+0x3d8/0x1580 [ 1895.113545][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1895.113545][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1895.113545][ T253] ipv6_add_addr+0x411/0x2000 [ 1895.113545][ T253] inet6_addr_add+0x30e/0xa40 [ 1895.113545][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1895.113545][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1895.113545][ T253] netlink_rcv_skb+0x130/0x360 [ 1895.113545][ T253] netlink_unicast+0x449/0x710 [ 1895.113545][ T253] netlink_sendmsg+0x723/0xbe0 [ 1895.113545][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1895.113545][ T253] ___sys_sendmsg+0xee/0x170 [ 1895.113545][ T253] __sys_sendmsg+0xcd/0x170 [ 1895.113545][ T253] do_syscall_64+0xc6/0x1e0 [ 1895.113545][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1895.113545][ T253] [ 1895.115819][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1895.115819][ T253] netdev_get_by_index+0x5e/0x80 [ 1895.115819][ T253] fib6_nh_init+0x3d8/0x1580 [ 1895.115819][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1895.115819][ T253] ip6_route_add+0x1c/0x140 [ 1895.115819][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1895.115819][ T253] addrconf_add_dev+0xe2/0x170 [ 1895.115819][ T253] inet6_addr_add+0x12f/0xa40 [ 1895.115819][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1895.115819][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1895.115819][ T253] netlink_rcv_skb+0x130/0x360 [ 1895.115819][ T253] netlink_unicast+0x449/0x710 [ 1895.115819][ T253] netlink_sendmsg+0x723/0xbe0 [ 1895.115819][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1895.115819][ T253] ___sys_sendmsg+0xee/0x170 [ 1895.115819][ T253] __sys_sendmsg+0xcd/0x170 [ 1895.115819][ T253] do_syscall_64+0xc6/0x1e0 [ 1895.115819][ T253] [ 1895.118043][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1895.118043][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1895.118043][ T253] ipv6_find_idev+0x102/0x170 [ 1895.118043][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1895.118043][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1895.118043][ T253] netlink_rcv_skb+0x130/0x360 [ 1895.118043][ T253] netlink_unicast+0x449/0x710 [ 1895.118043][ T253] netlink_sendmsg+0x723/0xbe0 [ 1895.118043][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1895.118043][ T253] ___sys_sendmsg+0xee/0x170 [ 1895.118043][ T253] __sys_sendmsg+0xcd/0x170 [ 1895.118043][ T253] do_syscall_64+0xc6/0x1e0 [ 1895.118043][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1895.118043][ T253] [ 1895.119786][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1895.119786][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1895.119786][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1895.119786][ T253] ipv6_find_idev+0x102/0x170 [ 1895.119786][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1895.119786][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1895.119786][ T253] netlink_rcv_skb+0x130/0x360 [ 1895.119786][ T253] netlink_unicast+0x449/0x710 [ 1895.119786][ T253] netlink_sendmsg+0x723/0xbe0 [ 1895.119786][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1895.119786][ T253] ___sys_sendmsg+0xee/0x170 [ 1895.119786][ T253] __sys_sendmsg+0xcd/0x170 [ 1895.119786][ T253] do_syscall_64+0xc6/0x1e0 [ 1895.119786][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1895.119786][ T253] [ 1905.362269][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1905.362930][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1905.362930][ T253] dst_init+0x84/0x4a0 [ 1905.362930][ T253] dst_alloc+0x97/0x150 [ 1905.362930][ T253] ip6_dst_alloc+0x23/0x90 [ 1905.362930][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1905.362930][ T253] ip6_pol_route+0x56f/0x840 [ 1905.362930][ T253] fib6_rule_lookup+0x334/0x630 [ 1905.362930][ T253] ip6_route_output_flags+0x259/0x480 [ 1905.362930][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1905.362930][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1905.362930][ T253] netlink_rcv_skb+0x130/0x360 [ 1905.362930][ T253] netlink_unicast+0x449/0x710 [ 1905.362930][ T253] netlink_sendmsg+0x723/0xbe0 [ 1905.362930][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1905.362930][ T253] ___sys_sendmsg+0xee/0x170 [ 1905.362930][ T253] __sys_sendmsg+0xcd/0x170 [ 1905.362930][ T253] do_syscall_64+0xc6/0x1e0 [ 1905.362930][ T253] [ 1905.366511][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1905.366511][ T253] netdev_get_by_index+0x5e/0x80 [ 1905.366511][ T253] fib6_nh_init+0x3d8/0x1580 [ 1905.366511][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1905.366511][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1905.366511][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1905.366511][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1905.366511][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1905.366511][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1905.366511][ T253] addrconf_dad_begin+0x310/0x670 [ 1905.366511][ T253] addrconf_dad_work+0x10b/0xab0 [ 1905.366511][ T253] process_one_work+0x84d/0x18a0 [ 1905.366511][ T253] worker_thread+0x587/0xd30 [ 1905.366511][ T253] kthread+0x28a/0x350 [ 1905.366511][ T253] ret_from_fork+0x31/0x70 [ 1905.366511][ T253] ret_from_fork_asm+0x1a/0x30 [ 1905.366511][ T253] [ 1905.370028][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1905.370028][ T253] netdev_get_by_index+0x5e/0x80 [ 1905.370028][ T253] fib6_nh_init+0x3d8/0x1580 [ 1905.370028][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1905.370028][ T253] ip6_route_add+0x1c/0x140 [ 1905.370028][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1905.370028][ T253] inet6_addr_add+0x4f8/0xa40 [ 1905.370028][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1905.370028][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1905.370028][ T253] netlink_rcv_skb+0x130/0x360 [ 1905.370028][ T253] netlink_unicast+0x449/0x710 [ 1905.370028][ T253] netlink_sendmsg+0x723/0xbe0 [ 1905.370028][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1905.370028][ T253] ___sys_sendmsg+0xee/0x170 [ 1905.370028][ T253] __sys_sendmsg+0xcd/0x170 [ 1905.370028][ T253] do_syscall_64+0xc6/0x1e0 [ 1905.370028][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1905.370028][ T253] [ 1905.373725][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1905.373725][ T253] netdev_get_by_index+0x5e/0x80 [ 1905.373725][ T253] fib6_nh_init+0x3d8/0x1580 [ 1905.373725][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1905.373725][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1905.373725][ T253] ipv6_add_addr+0x411/0x2000 [ 1905.373725][ T253] inet6_addr_add+0x30e/0xa40 [ 1905.373725][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1905.373725][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1905.373725][ T253] netlink_rcv_skb+0x130/0x360 [ 1905.373725][ T253] netlink_unicast+0x449/0x710 [ 1905.373725][ T253] netlink_sendmsg+0x723/0xbe0 [ 1905.373725][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1905.373725][ T253] ___sys_sendmsg+0xee/0x170 [ 1905.373725][ T253] __sys_sendmsg+0xcd/0x170 [ 1905.373725][ T253] do_syscall_64+0xc6/0x1e0 [ 1905.373725][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1905.373725][ T253] [ 1905.377405][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1905.377405][ T253] netdev_get_by_index+0x5e/0x80 [ 1905.377405][ T253] fib6_nh_init+0x3d8/0x1580 [ 1905.377405][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1905.377405][ T253] ip6_route_add+0x1c/0x140 [ 1905.377405][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1905.377405][ T253] addrconf_add_dev+0xe2/0x170 [ 1905.377405][ T253] inet6_addr_add+0x12f/0xa40 [ 1905.377405][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1905.377405][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1905.377405][ T253] netlink_rcv_skb+0x130/0x360 [ 1905.377405][ T253] netlink_unicast+0x449/0x710 [ 1905.377405][ T253] netlink_sendmsg+0x723/0xbe0 [ 1905.377405][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1905.377405][ T253] ___sys_sendmsg+0xee/0x170 [ 1905.377405][ T253] __sys_sendmsg+0xcd/0x170 [ 1905.377405][ T253] do_syscall_64+0xc6/0x1e0 [ 1905.377405][ T253] [ 1905.381001][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1905.381001][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1905.381001][ T253] ipv6_find_idev+0x102/0x170 [ 1905.381001][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1905.381001][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1905.381001][ T253] netlink_rcv_skb+0x130/0x360 [ 1905.381001][ T253] netlink_unicast+0x449/0x710 [ 1905.381001][ T253] netlink_sendmsg+0x723/0xbe0 [ 1905.381001][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1905.381001][ T253] ___sys_sendmsg+0xee/0x170 [ 1905.381001][ T253] __sys_sendmsg+0xcd/0x170 [ 1905.381001][ T253] do_syscall_64+0xc6/0x1e0 [ 1905.381001][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1905.381001][ T253] [ 1905.384793][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1905.384793][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1905.384793][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1905.384793][ T253] ipv6_find_idev+0x102/0x170 [ 1905.384793][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1905.384793][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1905.384793][ T253] netlink_rcv_skb+0x130/0x360 [ 1905.384793][ T253] netlink_unicast+0x449/0x710 [ 1905.384793][ T253] netlink_sendmsg+0x723/0xbe0 [ 1905.384793][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1905.384793][ T253] ___sys_sendmsg+0xee/0x170 [ 1905.384793][ T253] __sys_sendmsg+0xcd/0x170 [ 1905.384793][ T253] do_syscall_64+0xc6/0x1e0 [ 1905.384793][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1905.384793][ T253] [ 1915.626344][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1915.626930][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1915.626930][ T253] dst_init+0x84/0x4a0 [ 1915.626930][ T253] dst_alloc+0x97/0x150 [ 1915.626930][ T253] ip6_dst_alloc+0x23/0x90 [ 1915.626930][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1915.626930][ T253] ip6_pol_route+0x56f/0x840 [ 1915.626930][ T253] fib6_rule_lookup+0x334/0x630 [ 1915.626930][ T253] ip6_route_output_flags+0x259/0x480 [ 1915.626930][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1915.626930][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1915.626930][ T253] netlink_rcv_skb+0x130/0x360 [ 1915.626930][ T253] netlink_unicast+0x449/0x710 [ 1915.626930][ T253] netlink_sendmsg+0x723/0xbe0 [ 1915.626930][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1915.626930][ T253] ___sys_sendmsg+0xee/0x170 [ 1915.626930][ T253] __sys_sendmsg+0xcd/0x170 [ 1915.626930][ T253] do_syscall_64+0xc6/0x1e0 [ 1915.626930][ T253] [ 1915.629393][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1915.629393][ T253] netdev_get_by_index+0x5e/0x80 [ 1915.629393][ T253] fib6_nh_init+0x3d8/0x1580 [ 1915.629393][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1915.629393][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1915.629393][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1915.629393][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1915.629393][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1915.629393][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1915.629393][ T253] addrconf_dad_begin+0x310/0x670 [ 1915.629393][ T253] addrconf_dad_work+0x10b/0xab0 [ 1915.629393][ T253] process_one_work+0x84d/0x18a0 [ 1915.629393][ T253] worker_thread+0x587/0xd30 [ 1915.629393][ T253] kthread+0x28a/0x350 [ 1915.629393][ T253] ret_from_fork+0x31/0x70 [ 1915.629393][ T253] ret_from_fork_asm+0x1a/0x30 [ 1915.629393][ T253] [ 1915.631797][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1915.631797][ T253] netdev_get_by_index+0x5e/0x80 [ 1915.631797][ T253] fib6_nh_init+0x3d8/0x1580 [ 1915.631797][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1915.631797][ T253] ip6_route_add+0x1c/0x140 [ 1915.631797][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1915.631797][ T253] inet6_addr_add+0x4f8/0xa40 [ 1915.631797][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1915.631797][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1915.631797][ T253] netlink_rcv_skb+0x130/0x360 [ 1915.631797][ T253] netlink_unicast+0x449/0x710 [ 1915.631797][ T253] netlink_sendmsg+0x723/0xbe0 [ 1915.631797][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1915.631797][ T253] ___sys_sendmsg+0xee/0x170 [ 1915.631797][ T253] __sys_sendmsg+0xcd/0x170 [ 1915.631797][ T253] do_syscall_64+0xc6/0x1e0 [ 1915.631797][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1915.631797][ T253] [ 1915.634335][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1915.634335][ T253] netdev_get_by_index+0x5e/0x80 [ 1915.634335][ T253] fib6_nh_init+0x3d8/0x1580 [ 1915.634335][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1915.634335][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1915.634335][ T253] ipv6_add_addr+0x411/0x2000 [ 1915.634335][ T253] inet6_addr_add+0x30e/0xa40 [ 1915.634335][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1915.634335][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1915.634335][ T253] netlink_rcv_skb+0x130/0x360 [ 1915.634335][ T253] netlink_unicast+0x449/0x710 [ 1915.634335][ T253] netlink_sendmsg+0x723/0xbe0 [ 1915.634335][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1915.634335][ T253] ___sys_sendmsg+0xee/0x170 [ 1915.634335][ T253] __sys_sendmsg+0xcd/0x170 [ 1915.634335][ T253] do_syscall_64+0xc6/0x1e0 [ 1915.634335][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1915.634335][ T253] [ 1915.637389][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1915.637389][ T253] netdev_get_by_index+0x5e/0x80 [ 1915.637389][ T253] fib6_nh_init+0x3d8/0x1580 [ 1915.637389][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1915.637389][ T253] ip6_route_add+0x1c/0x140 [ 1915.637389][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1915.637389][ T253] addrconf_add_dev+0xe2/0x170 [ 1915.637389][ T253] inet6_addr_add+0x12f/0xa40 [ 1915.637389][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1915.637389][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1915.637389][ T253] netlink_rcv_skb+0x130/0x360 [ 1915.637389][ T253] netlink_unicast+0x449/0x710 [ 1915.637389][ T253] netlink_sendmsg+0x723/0xbe0 [ 1915.637389][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1915.637389][ T253] ___sys_sendmsg+0xee/0x170 [ 1915.637389][ T253] __sys_sendmsg+0xcd/0x170 [ 1915.637389][ T253] do_syscall_64+0xc6/0x1e0 [ 1915.637389][ T253] [ 1915.639843][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1915.639843][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1915.639843][ T253] ipv6_find_idev+0x102/0x170 [ 1915.639843][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1915.639843][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1915.639843][ T253] netlink_rcv_skb+0x130/0x360 [ 1915.639843][ T253] netlink_unicast+0x449/0x710 [ 1915.639843][ T253] netlink_sendmsg+0x723/0xbe0 [ 1915.639843][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1915.639843][ T253] ___sys_sendmsg+0xee/0x170 [ 1915.639843][ T253] __sys_sendmsg+0xcd/0x170 [ 1915.639843][ T253] do_syscall_64+0xc6/0x1e0 [ 1915.639843][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1915.639843][ T253] [ 1915.641771][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1915.641771][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1915.641771][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1915.641771][ T253] ipv6_find_idev+0x102/0x170 [ 1915.641771][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1915.641771][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1915.641771][ T253] netlink_rcv_skb+0x130/0x360 [ 1915.641771][ T253] netlink_unicast+0x449/0x710 [ 1915.641771][ T253] netlink_sendmsg+0x723/0xbe0 [ 1915.641771][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1915.641771][ T253] ___sys_sendmsg+0xee/0x170 [ 1915.641771][ T253] __sys_sendmsg+0xcd/0x170 [ 1915.641771][ T253] do_syscall_64+0xc6/0x1e0 [ 1915.641771][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1915.641771][ T253] [ 1925.882256][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1925.882923][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1925.882923][ T253] dst_init+0x84/0x4a0 [ 1925.882923][ T253] dst_alloc+0x97/0x150 [ 1925.882923][ T253] ip6_dst_alloc+0x23/0x90 [ 1925.882923][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1925.882923][ T253] ip6_pol_route+0x56f/0x840 [ 1925.882923][ T253] fib6_rule_lookup+0x334/0x630 [ 1925.882923][ T253] ip6_route_output_flags+0x259/0x480 [ 1925.882923][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1925.882923][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1925.882923][ T253] netlink_rcv_skb+0x130/0x360 [ 1925.882923][ T253] netlink_unicast+0x449/0x710 [ 1925.882923][ T253] netlink_sendmsg+0x723/0xbe0 [ 1925.882923][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1925.882923][ T253] ___sys_sendmsg+0xee/0x170 [ 1925.882923][ T253] __sys_sendmsg+0xcd/0x170 [ 1925.882923][ T253] do_syscall_64+0xc6/0x1e0 [ 1925.882923][ T253] [ 1925.886392][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1925.886392][ T253] netdev_get_by_index+0x5e/0x80 [ 1925.886392][ T253] fib6_nh_init+0x3d8/0x1580 [ 1925.886392][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1925.886392][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1925.886392][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1925.886392][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1925.886392][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1925.886392][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1925.886392][ T253] addrconf_dad_begin+0x310/0x670 [ 1925.886392][ T253] addrconf_dad_work+0x10b/0xab0 [ 1925.886392][ T253] process_one_work+0x84d/0x18a0 [ 1925.886392][ T253] worker_thread+0x587/0xd30 [ 1925.886392][ T253] kthread+0x28a/0x350 [ 1925.886392][ T253] ret_from_fork+0x31/0x70 [ 1925.886392][ T253] ret_from_fork_asm+0x1a/0x30 [ 1925.886392][ T253] [ 1925.889849][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1925.889849][ T253] netdev_get_by_index+0x5e/0x80 [ 1925.889849][ T253] fib6_nh_init+0x3d8/0x1580 [ 1925.889849][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1925.889849][ T253] ip6_route_add+0x1c/0x140 [ 1925.889849][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1925.889849][ T253] inet6_addr_add+0x4f8/0xa40 [ 1925.889849][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1925.889849][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1925.889849][ T253] netlink_rcv_skb+0x130/0x360 [ 1925.889849][ T253] netlink_unicast+0x449/0x710 [ 1925.889849][ T253] netlink_sendmsg+0x723/0xbe0 [ 1925.889849][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1925.889849][ T253] ___sys_sendmsg+0xee/0x170 [ 1925.889849][ T253] __sys_sendmsg+0xcd/0x170 [ 1925.889849][ T253] do_syscall_64+0xc6/0x1e0 [ 1925.889849][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1925.889849][ T253] [ 1925.893535][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1925.893535][ T253] netdev_get_by_index+0x5e/0x80 [ 1925.893535][ T253] fib6_nh_init+0x3d8/0x1580 [ 1925.893535][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1925.893535][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1925.893535][ T253] ipv6_add_addr+0x411/0x2000 [ 1925.893535][ T253] inet6_addr_add+0x30e/0xa40 [ 1925.893535][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1925.893535][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1925.893535][ T253] netlink_rcv_skb+0x130/0x360 [ 1925.893535][ T253] netlink_unicast+0x449/0x710 [ 1925.893535][ T253] netlink_sendmsg+0x723/0xbe0 [ 1925.893535][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1925.893535][ T253] ___sys_sendmsg+0xee/0x170 [ 1925.893535][ T253] __sys_sendmsg+0xcd/0x170 [ 1925.893535][ T253] do_syscall_64+0xc6/0x1e0 [ 1925.893535][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1925.893535][ T253] [ 1925.897122][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1925.897122][ T253] netdev_get_by_index+0x5e/0x80 [ 1925.897122][ T253] fib6_nh_init+0x3d8/0x1580 [ 1925.897122][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1925.897122][ T253] ip6_route_add+0x1c/0x140 [ 1925.897122][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1925.897122][ T253] addrconf_add_dev+0xe2/0x170 [ 1925.897122][ T253] inet6_addr_add+0x12f/0xa40 [ 1925.897122][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1925.897122][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1925.897122][ T253] netlink_rcv_skb+0x130/0x360 [ 1925.897122][ T253] netlink_unicast+0x449/0x710 [ 1925.897122][ T253] netlink_sendmsg+0x723/0xbe0 [ 1925.897122][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1925.897122][ T253] ___sys_sendmsg+0xee/0x170 [ 1925.897122][ T253] __sys_sendmsg+0xcd/0x170 [ 1925.897122][ T253] do_syscall_64+0xc6/0x1e0 [ 1925.897122][ T253] [ 1925.900641][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1925.900641][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1925.900641][ T253] ipv6_find_idev+0x102/0x170 [ 1925.900641][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1925.900641][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1925.900641][ T253] netlink_rcv_skb+0x130/0x360 [ 1925.900641][ T253] netlink_unicast+0x449/0x710 [ 1925.900641][ T253] netlink_sendmsg+0x723/0xbe0 [ 1925.900641][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1925.900641][ T253] ___sys_sendmsg+0xee/0x170 [ 1925.900641][ T253] __sys_sendmsg+0xcd/0x170 [ 1925.900641][ T253] do_syscall_64+0xc6/0x1e0 [ 1925.900641][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1925.900641][ T253] [ 1925.903485][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1925.903485][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1925.903485][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1925.903485][ T253] ipv6_find_idev+0x102/0x170 [ 1925.903485][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1925.903485][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1925.903485][ T253] netlink_rcv_skb+0x130/0x360 [ 1925.903485][ T253] netlink_unicast+0x449/0x710 [ 1925.903485][ T253] netlink_sendmsg+0x723/0xbe0 [ 1925.903485][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1925.903485][ T253] ___sys_sendmsg+0xee/0x170 [ 1925.903485][ T253] __sys_sendmsg+0xcd/0x170 [ 1925.903485][ T253] do_syscall_64+0xc6/0x1e0 [ 1925.903485][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1925.903485][ T253] [ 1936.146258][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1936.146913][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1936.146913][ T253] dst_init+0x84/0x4a0 [ 1936.146913][ T253] dst_alloc+0x97/0x150 [ 1936.146913][ T253] ip6_dst_alloc+0x23/0x90 [ 1936.146913][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1936.146913][ T253] ip6_pol_route+0x56f/0x840 [ 1936.146913][ T253] fib6_rule_lookup+0x334/0x630 [ 1936.146913][ T253] ip6_route_output_flags+0x259/0x480 [ 1936.146913][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1936.146913][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1936.146913][ T253] netlink_rcv_skb+0x130/0x360 [ 1936.146913][ T253] netlink_unicast+0x449/0x710 [ 1936.146913][ T253] netlink_sendmsg+0x723/0xbe0 [ 1936.146913][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1936.146913][ T253] ___sys_sendmsg+0xee/0x170 [ 1936.146913][ T253] __sys_sendmsg+0xcd/0x170 [ 1936.146913][ T253] do_syscall_64+0xc6/0x1e0 [ 1936.146913][ T253] [ 1936.150422][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1936.150422][ T253] netdev_get_by_index+0x5e/0x80 [ 1936.150422][ T253] fib6_nh_init+0x3d8/0x1580 [ 1936.150422][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1936.150422][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1936.150422][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1936.150422][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1936.150422][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1936.150422][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1936.150422][ T253] addrconf_dad_begin+0x310/0x670 [ 1936.150422][ T253] addrconf_dad_work+0x10b/0xab0 [ 1936.150422][ T253] process_one_work+0x84d/0x18a0 [ 1936.150422][ T253] worker_thread+0x587/0xd30 [ 1936.150422][ T253] kthread+0x28a/0x350 [ 1936.150422][ T253] ret_from_fork+0x31/0x70 [ 1936.150422][ T253] ret_from_fork_asm+0x1a/0x30 [ 1936.150422][ T253] [ 1936.153866][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1936.153866][ T253] netdev_get_by_index+0x5e/0x80 [ 1936.153866][ T253] fib6_nh_init+0x3d8/0x1580 [ 1936.153866][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1936.153866][ T253] ip6_route_add+0x1c/0x140 [ 1936.153866][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1936.153866][ T253] inet6_addr_add+0x4f8/0xa40 [ 1936.153866][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1936.153866][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.153866][ T253] netlink_rcv_skb+0x130/0x360 [ 1936.153866][ T253] netlink_unicast+0x449/0x710 [ 1936.153866][ T253] netlink_sendmsg+0x723/0xbe0 [ 1936.153866][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1936.153866][ T253] ___sys_sendmsg+0xee/0x170 [ 1936.153866][ T253] __sys_sendmsg+0xcd/0x170 [ 1936.153866][ T253] do_syscall_64+0xc6/0x1e0 [ 1936.153866][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1936.153866][ T253] [ 1936.157474][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1936.157474][ T253] netdev_get_by_index+0x5e/0x80 [ 1936.157474][ T253] fib6_nh_init+0x3d8/0x1580 [ 1936.157474][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1936.157474][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1936.157474][ T253] ipv6_add_addr+0x411/0x2000 [ 1936.157474][ T253] inet6_addr_add+0x30e/0xa40 [ 1936.157474][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1936.157474][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.157474][ T253] netlink_rcv_skb+0x130/0x360 [ 1936.157474][ T253] netlink_unicast+0x449/0x710 [ 1936.157474][ T253] netlink_sendmsg+0x723/0xbe0 [ 1936.157474][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1936.157474][ T253] ___sys_sendmsg+0xee/0x170 [ 1936.157474][ T253] __sys_sendmsg+0xcd/0x170 [ 1936.157474][ T253] do_syscall_64+0xc6/0x1e0 [ 1936.157474][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1936.157474][ T253] [ 1936.161082][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1936.161082][ T253] netdev_get_by_index+0x5e/0x80 [ 1936.161082][ T253] fib6_nh_init+0x3d8/0x1580 [ 1936.161082][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1936.161082][ T253] ip6_route_add+0x1c/0x140 [ 1936.161082][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1936.161082][ T253] addrconf_add_dev+0xe2/0x170 [ 1936.161082][ T253] inet6_addr_add+0x12f/0xa40 [ 1936.161082][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1936.161082][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.161082][ T253] netlink_rcv_skb+0x130/0x360 [ 1936.161082][ T253] netlink_unicast+0x449/0x710 [ 1936.161082][ T253] netlink_sendmsg+0x723/0xbe0 [ 1936.161082][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1936.161082][ T253] ___sys_sendmsg+0xee/0x170 [ 1936.161082][ T253] __sys_sendmsg+0xcd/0x170 [ 1936.161082][ T253] do_syscall_64+0xc6/0x1e0 [ 1936.161082][ T253] [ 1936.164631][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1936.164631][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1936.164631][ T253] ipv6_find_idev+0x102/0x170 [ 1936.164631][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1936.164631][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.164631][ T253] netlink_rcv_skb+0x130/0x360 [ 1936.164631][ T253] netlink_unicast+0x449/0x710 [ 1936.164631][ T253] netlink_sendmsg+0x723/0xbe0 [ 1936.164631][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1936.164631][ T253] ___sys_sendmsg+0xee/0x170 [ 1936.164631][ T253] __sys_sendmsg+0xcd/0x170 [ 1936.164631][ T253] do_syscall_64+0xc6/0x1e0 [ 1936.164631][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1936.164631][ T253] [ 1936.167414][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1936.167414][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1936.167414][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1936.167414][ T253] ipv6_find_idev+0x102/0x170 [ 1936.167414][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1936.167414][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1936.167414][ T253] netlink_rcv_skb+0x130/0x360 [ 1936.167414][ T253] netlink_unicast+0x449/0x710 [ 1936.167414][ T253] netlink_sendmsg+0x723/0xbe0 [ 1936.167414][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1936.167414][ T253] ___sys_sendmsg+0xee/0x170 [ 1936.167414][ T253] __sys_sendmsg+0xcd/0x170 [ 1936.167414][ T253] do_syscall_64+0xc6/0x1e0 [ 1936.167414][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1936.167414][ T253] [ 1946.274251][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1946.274933][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1946.274933][ T253] dst_init+0x84/0x4a0 [ 1946.274933][ T253] dst_alloc+0x97/0x150 [ 1946.274933][ T253] ip6_dst_alloc+0x23/0x90 [ 1946.274933][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1946.274933][ T253] ip6_pol_route+0x56f/0x840 [ 1946.274933][ T253] fib6_rule_lookup+0x334/0x630 [ 1946.274933][ T253] ip6_route_output_flags+0x259/0x480 [ 1946.274933][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1946.274933][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1946.274933][ T253] netlink_rcv_skb+0x130/0x360 [ 1946.274933][ T253] netlink_unicast+0x449/0x710 [ 1946.274933][ T253] netlink_sendmsg+0x723/0xbe0 [ 1946.274933][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1946.274933][ T253] ___sys_sendmsg+0xee/0x170 [ 1946.274933][ T253] __sys_sendmsg+0xcd/0x170 [ 1946.274933][ T253] do_syscall_64+0xc6/0x1e0 [ 1946.274933][ T253] [ 1946.278517][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1946.278517][ T253] netdev_get_by_index+0x5e/0x80 [ 1946.278517][ T253] fib6_nh_init+0x3d8/0x1580 [ 1946.278517][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1946.278517][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1946.278517][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1946.278517][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1946.278517][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1946.278517][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1946.278517][ T253] addrconf_dad_begin+0x310/0x670 [ 1946.278517][ T253] addrconf_dad_work+0x10b/0xab0 [ 1946.278517][ T253] process_one_work+0x84d/0x18a0 [ 1946.278517][ T253] worker_thread+0x587/0xd30 [ 1946.278517][ T253] kthread+0x28a/0x350 [ 1946.278517][ T253] ret_from_fork+0x31/0x70 [ 1946.278517][ T253] ret_from_fork_asm+0x1a/0x30 [ 1946.278517][ T253] [ 1946.282023][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1946.282023][ T253] netdev_get_by_index+0x5e/0x80 [ 1946.282023][ T253] fib6_nh_init+0x3d8/0x1580 [ 1946.282023][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1946.282023][ T253] ip6_route_add+0x1c/0x140 [ 1946.282023][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1946.282023][ T253] inet6_addr_add+0x4f8/0xa40 [ 1946.282023][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1946.282023][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.282023][ T253] netlink_rcv_skb+0x130/0x360 [ 1946.282023][ T253] netlink_unicast+0x449/0x710 [ 1946.282023][ T253] netlink_sendmsg+0x723/0xbe0 [ 1946.282023][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1946.282023][ T253] ___sys_sendmsg+0xee/0x170 [ 1946.282023][ T253] __sys_sendmsg+0xcd/0x170 [ 1946.282023][ T253] do_syscall_64+0xc6/0x1e0 [ 1946.282023][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1946.282023][ T253] [ 1946.285649][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1946.285649][ T253] netdev_get_by_index+0x5e/0x80 [ 1946.285649][ T253] fib6_nh_init+0x3d8/0x1580 [ 1946.285649][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1946.285649][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1946.285649][ T253] ipv6_add_addr+0x411/0x2000 [ 1946.285649][ T253] inet6_addr_add+0x30e/0xa40 [ 1946.285649][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1946.285649][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.285649][ T253] netlink_rcv_skb+0x130/0x360 [ 1946.285649][ T253] netlink_unicast+0x449/0x710 [ 1946.285649][ T253] netlink_sendmsg+0x723/0xbe0 [ 1946.285649][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1946.285649][ T253] ___sys_sendmsg+0xee/0x170 [ 1946.285649][ T253] __sys_sendmsg+0xcd/0x170 [ 1946.285649][ T253] do_syscall_64+0xc6/0x1e0 [ 1946.285649][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1946.285649][ T253] [ 1946.289333][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1946.289333][ T253] netdev_get_by_index+0x5e/0x80 [ 1946.289333][ T253] fib6_nh_init+0x3d8/0x1580 [ 1946.289333][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1946.289333][ T253] ip6_route_add+0x1c/0x140 [ 1946.289333][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1946.289333][ T253] addrconf_add_dev+0xe2/0x170 [ 1946.289333][ T253] inet6_addr_add+0x12f/0xa40 [ 1946.289333][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1946.289333][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.289333][ T253] netlink_rcv_skb+0x130/0x360 [ 1946.289333][ T253] netlink_unicast+0x449/0x710 [ 1946.289333][ T253] netlink_sendmsg+0x723/0xbe0 [ 1946.289333][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1946.289333][ T253] ___sys_sendmsg+0xee/0x170 [ 1946.289333][ T253] __sys_sendmsg+0xcd/0x170 [ 1946.289333][ T253] do_syscall_64+0xc6/0x1e0 [ 1946.289333][ T253] [ 1946.292954][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1946.292954][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1946.292954][ T253] ipv6_find_idev+0x102/0x170 [ 1946.292954][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1946.292954][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.292954][ T253] netlink_rcv_skb+0x130/0x360 [ 1946.292954][ T253] netlink_unicast+0x449/0x710 [ 1946.292954][ T253] netlink_sendmsg+0x723/0xbe0 [ 1946.292954][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1946.292954][ T253] ___sys_sendmsg+0xee/0x170 [ 1946.292954][ T253] __sys_sendmsg+0xcd/0x170 [ 1946.292954][ T253] do_syscall_64+0xc6/0x1e0 [ 1946.292954][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1946.292954][ T253] [ 1946.295775][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1946.295775][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1946.295775][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1946.295775][ T253] ipv6_find_idev+0x102/0x170 [ 1946.295775][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1946.295775][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1946.295775][ T253] netlink_rcv_skb+0x130/0x360 [ 1946.295775][ T253] netlink_unicast+0x449/0x710 [ 1946.295775][ T253] netlink_sendmsg+0x723/0xbe0 [ 1946.295775][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1946.295775][ T253] ___sys_sendmsg+0xee/0x170 [ 1946.295775][ T253] __sys_sendmsg+0xcd/0x170 [ 1946.295775][ T253] do_syscall_64+0xc6/0x1e0 [ 1946.295775][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1946.295775][ T253] [ 1956.538297][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1956.538785][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1956.538785][ T253] dst_init+0x84/0x4a0 [ 1956.538785][ T253] dst_alloc+0x97/0x150 [ 1956.538785][ T253] ip6_dst_alloc+0x23/0x90 [ 1956.538785][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1956.538785][ T253] ip6_pol_route+0x56f/0x840 [ 1956.538785][ T253] fib6_rule_lookup+0x334/0x630 [ 1956.538785][ T253] ip6_route_output_flags+0x259/0x480 [ 1956.538785][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1956.538785][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1956.538785][ T253] netlink_rcv_skb+0x130/0x360 [ 1956.538785][ T253] netlink_unicast+0x449/0x710 [ 1956.538785][ T253] netlink_sendmsg+0x723/0xbe0 [ 1956.538785][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1956.538785][ T253] ___sys_sendmsg+0xee/0x170 [ 1956.538785][ T253] __sys_sendmsg+0xcd/0x170 [ 1956.538785][ T253] do_syscall_64+0xc6/0x1e0 [ 1956.538785][ T253] [ 1956.541045][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1956.541045][ T253] netdev_get_by_index+0x5e/0x80 [ 1956.541045][ T253] fib6_nh_init+0x3d8/0x1580 [ 1956.541045][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1956.541045][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1956.541045][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1956.541045][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1956.541045][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1956.541045][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1956.541045][ T253] addrconf_dad_begin+0x310/0x670 [ 1956.541045][ T253] addrconf_dad_work+0x10b/0xab0 [ 1956.541045][ T253] process_one_work+0x84d/0x18a0 [ 1956.541045][ T253] worker_thread+0x587/0xd30 [ 1956.541045][ T253] kthread+0x28a/0x350 [ 1956.541045][ T253] ret_from_fork+0x31/0x70 [ 1956.541045][ T253] ret_from_fork_asm+0x1a/0x30 [ 1956.541045][ T253] [ 1956.543224][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1956.543224][ T253] netdev_get_by_index+0x5e/0x80 [ 1956.543224][ T253] fib6_nh_init+0x3d8/0x1580 [ 1956.543224][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1956.543224][ T253] ip6_route_add+0x1c/0x140 [ 1956.543224][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1956.543224][ T253] inet6_addr_add+0x4f8/0xa40 [ 1956.543224][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1956.543224][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1956.543224][ T253] netlink_rcv_skb+0x130/0x360 [ 1956.543224][ T253] netlink_unicast+0x449/0x710 [ 1956.543224][ T253] netlink_sendmsg+0x723/0xbe0 [ 1956.543224][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1956.543224][ T253] ___sys_sendmsg+0xee/0x170 [ 1956.543224][ T253] __sys_sendmsg+0xcd/0x170 [ 1956.543224][ T253] do_syscall_64+0xc6/0x1e0 [ 1956.543224][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1956.543224][ T253] [ 1956.545488][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1956.545488][ T253] netdev_get_by_index+0x5e/0x80 [ 1956.545488][ T253] fib6_nh_init+0x3d8/0x1580 [ 1956.545488][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1956.545488][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1956.545488][ T253] ipv6_add_addr+0x411/0x2000 [ 1956.545488][ T253] inet6_addr_add+0x30e/0xa40 [ 1956.545488][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1956.545488][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1956.545488][ T253] netlink_rcv_skb+0x130/0x360 [ 1956.545488][ T253] netlink_unicast+0x449/0x710 [ 1956.545488][ T253] netlink_sendmsg+0x723/0xbe0 [ 1956.545488][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1956.545488][ T253] ___sys_sendmsg+0xee/0x170 [ 1956.545488][ T253] __sys_sendmsg+0xcd/0x170 [ 1956.545488][ T253] do_syscall_64+0xc6/0x1e0 [ 1956.545488][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1956.545488][ T253] [ 1956.547758][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1956.547758][ T253] netdev_get_by_index+0x5e/0x80 [ 1956.547758][ T253] fib6_nh_init+0x3d8/0x1580 [ 1956.547758][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1956.547758][ T253] ip6_route_add+0x1c/0x140 [ 1956.547758][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1956.547758][ T253] addrconf_add_dev+0xe2/0x170 [ 1956.547758][ T253] inet6_addr_add+0x12f/0xa40 [ 1956.547758][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1956.547758][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1956.547758][ T253] netlink_rcv_skb+0x130/0x360 [ 1956.547758][ T253] netlink_unicast+0x449/0x710 [ 1956.547758][ T253] netlink_sendmsg+0x723/0xbe0 [ 1956.547758][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1956.547758][ T253] ___sys_sendmsg+0xee/0x170 [ 1956.547758][ T253] __sys_sendmsg+0xcd/0x170 [ 1956.547758][ T253] do_syscall_64+0xc6/0x1e0 [ 1956.547758][ T253] [ 1956.549979][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1956.549979][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1956.549979][ T253] ipv6_find_idev+0x102/0x170 [ 1956.549979][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1956.549979][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1956.549979][ T253] netlink_rcv_skb+0x130/0x360 [ 1956.549979][ T253] netlink_unicast+0x449/0x710 [ 1956.549979][ T253] netlink_sendmsg+0x723/0xbe0 [ 1956.549979][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1956.549979][ T253] ___sys_sendmsg+0xee/0x170 [ 1956.549979][ T253] __sys_sendmsg+0xcd/0x170 [ 1956.549979][ T253] do_syscall_64+0xc6/0x1e0 [ 1956.549979][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1956.549979][ T253] [ 1956.551727][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1956.551727][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1956.551727][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1956.551727][ T253] ipv6_find_idev+0x102/0x170 [ 1956.551727][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1956.551727][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1956.551727][ T253] netlink_rcv_skb+0x130/0x360 [ 1956.551727][ T253] netlink_unicast+0x449/0x710 [ 1956.551727][ T253] netlink_sendmsg+0x723/0xbe0 [ 1956.551727][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1956.551727][ T253] ___sys_sendmsg+0xee/0x170 [ 1956.551727][ T253] __sys_sendmsg+0xcd/0x170 [ 1956.551727][ T253] do_syscall_64+0xc6/0x1e0 [ 1956.551727][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1956.551727][ T253] [ 1966.634329][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1966.634804][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1966.634804][ T253] dst_init+0x84/0x4a0 [ 1966.634804][ T253] dst_alloc+0x97/0x150 [ 1966.634804][ T253] ip6_dst_alloc+0x23/0x90 [ 1966.634804][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1966.634804][ T253] ip6_pol_route+0x56f/0x840 [ 1966.634804][ T253] fib6_rule_lookup+0x334/0x630 [ 1966.634804][ T253] ip6_route_output_flags+0x259/0x480 [ 1966.634804][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1966.634804][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1966.634804][ T253] netlink_rcv_skb+0x130/0x360 [ 1966.634804][ T253] netlink_unicast+0x449/0x710 [ 1966.634804][ T253] netlink_sendmsg+0x723/0xbe0 [ 1966.634804][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1966.634804][ T253] ___sys_sendmsg+0xee/0x170 [ 1966.634804][ T253] __sys_sendmsg+0xcd/0x170 [ 1966.634804][ T253] do_syscall_64+0xc6/0x1e0 [ 1966.634804][ T253] [ 1966.637030][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1966.637030][ T253] netdev_get_by_index+0x5e/0x80 [ 1966.637030][ T253] fib6_nh_init+0x3d8/0x1580 [ 1966.637030][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1966.637030][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1966.637030][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1966.637030][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1966.637030][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1966.637030][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1966.637030][ T253] addrconf_dad_begin+0x310/0x670 [ 1966.637030][ T253] addrconf_dad_work+0x10b/0xab0 [ 1966.637030][ T253] process_one_work+0x84d/0x18a0 [ 1966.637030][ T253] worker_thread+0x587/0xd30 [ 1966.637030][ T253] kthread+0x28a/0x350 [ 1966.637030][ T253] ret_from_fork+0x31/0x70 [ 1966.637030][ T253] ret_from_fork_asm+0x1a/0x30 [ 1966.637030][ T253] [ 1966.639191][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1966.639191][ T253] netdev_get_by_index+0x5e/0x80 [ 1966.639191][ T253] fib6_nh_init+0x3d8/0x1580 [ 1966.639191][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1966.639191][ T253] ip6_route_add+0x1c/0x140 [ 1966.639191][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1966.639191][ T253] inet6_addr_add+0x4f8/0xa40 [ 1966.639191][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1966.639191][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1966.639191][ T253] netlink_rcv_skb+0x130/0x360 [ 1966.639191][ T253] netlink_unicast+0x449/0x710 [ 1966.639191][ T253] netlink_sendmsg+0x723/0xbe0 [ 1966.639191][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1966.639191][ T253] ___sys_sendmsg+0xee/0x170 [ 1966.639191][ T253] __sys_sendmsg+0xcd/0x170 [ 1966.639191][ T253] do_syscall_64+0xc6/0x1e0 [ 1966.639191][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1966.639191][ T253] [ 1966.641482][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1966.641482][ T253] netdev_get_by_index+0x5e/0x80 [ 1966.641482][ T253] fib6_nh_init+0x3d8/0x1580 [ 1966.641482][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1966.641482][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1966.641482][ T253] ipv6_add_addr+0x411/0x2000 [ 1966.641482][ T253] inet6_addr_add+0x30e/0xa40 [ 1966.641482][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1966.641482][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1966.641482][ T253] netlink_rcv_skb+0x130/0x360 [ 1966.641482][ T253] netlink_unicast+0x449/0x710 [ 1966.641482][ T253] netlink_sendmsg+0x723/0xbe0 [ 1966.641482][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1966.641482][ T253] ___sys_sendmsg+0xee/0x170 [ 1966.641482][ T253] __sys_sendmsg+0xcd/0x170 [ 1966.641482][ T253] do_syscall_64+0xc6/0x1e0 [ 1966.641482][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1966.641482][ T253] [ 1966.643750][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1966.643750][ T253] netdev_get_by_index+0x5e/0x80 [ 1966.643750][ T253] fib6_nh_init+0x3d8/0x1580 [ 1966.643750][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1966.643750][ T253] ip6_route_add+0x1c/0x140 [ 1966.643750][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1966.643750][ T253] addrconf_add_dev+0xe2/0x170 [ 1966.643750][ T253] inet6_addr_add+0x12f/0xa40 [ 1966.643750][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1966.643750][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1966.643750][ T253] netlink_rcv_skb+0x130/0x360 [ 1966.643750][ T253] netlink_unicast+0x449/0x710 [ 1966.643750][ T253] netlink_sendmsg+0x723/0xbe0 [ 1966.643750][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1966.643750][ T253] ___sys_sendmsg+0xee/0x170 [ 1966.643750][ T253] __sys_sendmsg+0xcd/0x170 [ 1966.643750][ T253] do_syscall_64+0xc6/0x1e0 [ 1966.643750][ T253] [ 1966.645982][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1966.645982][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1966.645982][ T253] ipv6_find_idev+0x102/0x170 [ 1966.645982][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1966.645982][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1966.645982][ T253] netlink_rcv_skb+0x130/0x360 [ 1966.645982][ T253] netlink_unicast+0x449/0x710 [ 1966.645982][ T253] netlink_sendmsg+0x723/0xbe0 [ 1966.645982][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1966.645982][ T253] ___sys_sendmsg+0xee/0x170 [ 1966.645982][ T253] __sys_sendmsg+0xcd/0x170 [ 1966.645982][ T253] do_syscall_64+0xc6/0x1e0 [ 1966.645982][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1966.645982][ T253] [ 1966.647722][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1966.647722][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1966.647722][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1966.647722][ T253] ipv6_find_idev+0x102/0x170 [ 1966.647722][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1966.647722][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1966.647722][ T253] netlink_rcv_skb+0x130/0x360 [ 1966.647722][ T253] netlink_unicast+0x449/0x710 [ 1966.647722][ T253] netlink_sendmsg+0x723/0xbe0 [ 1966.647722][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1966.647722][ T253] ___sys_sendmsg+0xee/0x170 [ 1966.647722][ T253] __sys_sendmsg+0xcd/0x170 [ 1966.647722][ T253] do_syscall_64+0xc6/0x1e0 [ 1966.647722][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1966.647722][ T253] [ 1976.866315][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1976.866787][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1976.866787][ T253] dst_init+0x84/0x4a0 [ 1976.866787][ T253] dst_alloc+0x97/0x150 [ 1976.866787][ T253] ip6_dst_alloc+0x23/0x90 [ 1976.866787][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1976.866787][ T253] ip6_pol_route+0x56f/0x840 [ 1976.866787][ T253] fib6_rule_lookup+0x334/0x630 [ 1976.866787][ T253] ip6_route_output_flags+0x259/0x480 [ 1976.866787][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1976.866787][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1976.866787][ T253] netlink_rcv_skb+0x130/0x360 [ 1976.866787][ T253] netlink_unicast+0x449/0x710 [ 1976.866787][ T253] netlink_sendmsg+0x723/0xbe0 [ 1976.866787][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1976.866787][ T253] ___sys_sendmsg+0xee/0x170 [ 1976.866787][ T253] __sys_sendmsg+0xcd/0x170 [ 1976.866787][ T253] do_syscall_64+0xc6/0x1e0 [ 1976.866787][ T253] [ 1976.869016][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1976.869016][ T253] netdev_get_by_index+0x5e/0x80 [ 1976.869016][ T253] fib6_nh_init+0x3d8/0x1580 [ 1976.869016][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1976.869016][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1976.869016][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1976.869016][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1976.869016][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1976.869016][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1976.869016][ T253] addrconf_dad_begin+0x310/0x670 [ 1976.869016][ T253] addrconf_dad_work+0x10b/0xab0 [ 1976.869016][ T253] process_one_work+0x84d/0x18a0 [ 1976.869016][ T253] worker_thread+0x587/0xd30 [ 1976.869016][ T253] kthread+0x28a/0x350 [ 1976.869016][ T253] ret_from_fork+0x31/0x70 [ 1976.869016][ T253] ret_from_fork_asm+0x1a/0x30 [ 1976.869016][ T253] [ 1976.871196][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1976.871196][ T253] netdev_get_by_index+0x5e/0x80 [ 1976.871196][ T253] fib6_nh_init+0x3d8/0x1580 [ 1976.871196][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1976.871196][ T253] ip6_route_add+0x1c/0x140 [ 1976.871196][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1976.871196][ T253] inet6_addr_add+0x4f8/0xa40 [ 1976.871196][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1976.871196][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1976.871196][ T253] netlink_rcv_skb+0x130/0x360 [ 1976.871196][ T253] netlink_unicast+0x449/0x710 [ 1976.871196][ T253] netlink_sendmsg+0x723/0xbe0 [ 1976.871196][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1976.871196][ T253] ___sys_sendmsg+0xee/0x170 [ 1976.871196][ T253] __sys_sendmsg+0xcd/0x170 [ 1976.871196][ T253] do_syscall_64+0xc6/0x1e0 [ 1976.871196][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1976.871196][ T253] [ 1976.873458][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1976.873458][ T253] netdev_get_by_index+0x5e/0x80 [ 1976.873458][ T253] fib6_nh_init+0x3d8/0x1580 [ 1976.873458][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1976.873458][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1976.873458][ T253] ipv6_add_addr+0x411/0x2000 [ 1976.873458][ T253] inet6_addr_add+0x30e/0xa40 [ 1976.873458][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1976.873458][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1976.873458][ T253] netlink_rcv_skb+0x130/0x360 [ 1976.873458][ T253] netlink_unicast+0x449/0x710 [ 1976.873458][ T253] netlink_sendmsg+0x723/0xbe0 [ 1976.873458][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1976.873458][ T253] ___sys_sendmsg+0xee/0x170 [ 1976.873458][ T253] __sys_sendmsg+0xcd/0x170 [ 1976.873458][ T253] do_syscall_64+0xc6/0x1e0 [ 1976.873458][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1976.873458][ T253] [ 1976.875722][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1976.875722][ T253] netdev_get_by_index+0x5e/0x80 [ 1976.875722][ T253] fib6_nh_init+0x3d8/0x1580 [ 1976.875722][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1976.875722][ T253] ip6_route_add+0x1c/0x140 [ 1976.875722][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1976.875722][ T253] addrconf_add_dev+0xe2/0x170 [ 1976.875722][ T253] inet6_addr_add+0x12f/0xa40 [ 1976.875722][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1976.875722][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1976.875722][ T253] netlink_rcv_skb+0x130/0x360 [ 1976.875722][ T253] netlink_unicast+0x449/0x710 [ 1976.875722][ T253] netlink_sendmsg+0x723/0xbe0 [ 1976.875722][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1976.875722][ T253] ___sys_sendmsg+0xee/0x170 [ 1976.875722][ T253] __sys_sendmsg+0xcd/0x170 [ 1976.875722][ T253] do_syscall_64+0xc6/0x1e0 [ 1976.875722][ T253] [ 1976.878501][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1976.878501][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1976.878501][ T253] ipv6_find_idev+0x102/0x170 [ 1976.878501][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1976.878501][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1976.878501][ T253] netlink_rcv_skb+0x130/0x360 [ 1976.878501][ T253] netlink_unicast+0x449/0x710 [ 1976.878501][ T253] netlink_sendmsg+0x723/0xbe0 [ 1976.878501][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1976.878501][ T253] ___sys_sendmsg+0xee/0x170 [ 1976.878501][ T253] __sys_sendmsg+0xcd/0x170 [ 1976.878501][ T253] do_syscall_64+0xc6/0x1e0 [ 1976.878501][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1976.878501][ T253] [ 1976.880254][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1976.880254][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1976.880254][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1976.880254][ T253] ipv6_find_idev+0x102/0x170 [ 1976.880254][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1976.880254][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1976.880254][ T253] netlink_rcv_skb+0x130/0x360 [ 1976.880254][ T253] netlink_unicast+0x449/0x710 [ 1976.880254][ T253] netlink_sendmsg+0x723/0xbe0 [ 1976.880254][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1976.880254][ T253] ___sys_sendmsg+0xee/0x170 [ 1976.880254][ T253] __sys_sendmsg+0xcd/0x170 [ 1976.880254][ T253] do_syscall_64+0xc6/0x1e0 [ 1976.880254][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1976.880254][ T253] [ 1987.130311][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1987.130786][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1987.130786][ T253] dst_init+0x84/0x4a0 [ 1987.130786][ T253] dst_alloc+0x97/0x150 [ 1987.130786][ T253] ip6_dst_alloc+0x23/0x90 [ 1987.130786][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1987.130786][ T253] ip6_pol_route+0x56f/0x840 [ 1987.130786][ T253] fib6_rule_lookup+0x334/0x630 [ 1987.130786][ T253] ip6_route_output_flags+0x259/0x480 [ 1987.130786][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1987.130786][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1987.130786][ T253] netlink_rcv_skb+0x130/0x360 [ 1987.130786][ T253] netlink_unicast+0x449/0x710 [ 1987.130786][ T253] netlink_sendmsg+0x723/0xbe0 [ 1987.130786][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1987.130786][ T253] ___sys_sendmsg+0xee/0x170 [ 1987.130786][ T253] __sys_sendmsg+0xcd/0x170 [ 1987.130786][ T253] do_syscall_64+0xc6/0x1e0 [ 1987.130786][ T253] [ 1987.133006][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1987.133006][ T253] netdev_get_by_index+0x5e/0x80 [ 1987.133006][ T253] fib6_nh_init+0x3d8/0x1580 [ 1987.133006][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1987.133006][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1987.133006][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1987.133006][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1987.133006][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1987.133006][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1987.133006][ T253] addrconf_dad_begin+0x310/0x670 [ 1987.133006][ T253] addrconf_dad_work+0x10b/0xab0 [ 1987.133006][ T253] process_one_work+0x84d/0x18a0 [ 1987.133006][ T253] worker_thread+0x587/0xd30 [ 1987.133006][ T253] kthread+0x28a/0x350 [ 1987.133006][ T253] ret_from_fork+0x31/0x70 [ 1987.133006][ T253] ret_from_fork_asm+0x1a/0x30 [ 1987.133006][ T253] [ 1987.135564][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1987.135564][ T253] netdev_get_by_index+0x5e/0x80 [ 1987.135564][ T253] fib6_nh_init+0x3d8/0x1580 [ 1987.135564][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1987.135564][ T253] ip6_route_add+0x1c/0x140 [ 1987.135564][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1987.135564][ T253] inet6_addr_add+0x4f8/0xa40 [ 1987.135564][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1987.135564][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.135564][ T253] netlink_rcv_skb+0x130/0x360 [ 1987.135564][ T253] netlink_unicast+0x449/0x710 [ 1987.135564][ T253] netlink_sendmsg+0x723/0xbe0 [ 1987.135564][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1987.135564][ T253] ___sys_sendmsg+0xee/0x170 [ 1987.135564][ T253] __sys_sendmsg+0xcd/0x170 [ 1987.135564][ T253] do_syscall_64+0xc6/0x1e0 [ 1987.135564][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1987.135564][ T253] [ 1987.137825][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1987.137825][ T253] netdev_get_by_index+0x5e/0x80 [ 1987.137825][ T253] fib6_nh_init+0x3d8/0x1580 [ 1987.137825][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1987.137825][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1987.137825][ T253] ipv6_add_addr+0x411/0x2000 [ 1987.137825][ T253] inet6_addr_add+0x30e/0xa40 [ 1987.137825][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1987.137825][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.137825][ T253] netlink_rcv_skb+0x130/0x360 [ 1987.137825][ T253] netlink_unicast+0x449/0x710 [ 1987.137825][ T253] netlink_sendmsg+0x723/0xbe0 [ 1987.137825][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1987.137825][ T253] ___sys_sendmsg+0xee/0x170 [ 1987.137825][ T253] __sys_sendmsg+0xcd/0x170 [ 1987.137825][ T253] do_syscall_64+0xc6/0x1e0 [ 1987.137825][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1987.137825][ T253] [ 1987.140094][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1987.140094][ T253] netdev_get_by_index+0x5e/0x80 [ 1987.140094][ T253] fib6_nh_init+0x3d8/0x1580 [ 1987.140094][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1987.140094][ T253] ip6_route_add+0x1c/0x140 [ 1987.140094][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1987.140094][ T253] addrconf_add_dev+0xe2/0x170 [ 1987.140094][ T253] inet6_addr_add+0x12f/0xa40 [ 1987.140094][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1987.140094][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.140094][ T253] netlink_rcv_skb+0x130/0x360 [ 1987.140094][ T253] netlink_unicast+0x449/0x710 [ 1987.140094][ T253] netlink_sendmsg+0x723/0xbe0 [ 1987.140094][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1987.140094][ T253] ___sys_sendmsg+0xee/0x170 [ 1987.140094][ T253] __sys_sendmsg+0xcd/0x170 [ 1987.140094][ T253] do_syscall_64+0xc6/0x1e0 [ 1987.140094][ T253] [ 1987.142318][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1987.142318][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1987.142318][ T253] ipv6_find_idev+0x102/0x170 [ 1987.142318][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1987.142318][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.142318][ T253] netlink_rcv_skb+0x130/0x360 [ 1987.142318][ T253] netlink_unicast+0x449/0x710 [ 1987.142318][ T253] netlink_sendmsg+0x723/0xbe0 [ 1987.142318][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1987.142318][ T253] ___sys_sendmsg+0xee/0x170 [ 1987.142318][ T253] __sys_sendmsg+0xcd/0x170 [ 1987.142318][ T253] do_syscall_64+0xc6/0x1e0 [ 1987.142318][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1987.142318][ T253] [ 1987.144060][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1987.144060][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1987.144060][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1987.144060][ T253] ipv6_find_idev+0x102/0x170 [ 1987.144060][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1987.144060][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1987.144060][ T253] netlink_rcv_skb+0x130/0x360 [ 1987.144060][ T253] netlink_unicast+0x449/0x710 [ 1987.144060][ T253] netlink_sendmsg+0x723/0xbe0 [ 1987.144060][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1987.144060][ T253] ___sys_sendmsg+0xee/0x170 [ 1987.144060][ T253] __sys_sendmsg+0xcd/0x170 [ 1987.144060][ T253] do_syscall_64+0xc6/0x1e0 [ 1987.144060][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1987.144060][ T253] [ 1997.394315][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1997.394806][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1997.394806][ T253] dst_init+0x84/0x4a0 [ 1997.394806][ T253] dst_alloc+0x97/0x150 [ 1997.394806][ T253] ip6_dst_alloc+0x23/0x90 [ 1997.394806][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1997.394806][ T253] ip6_pol_route+0x56f/0x840 [ 1997.394806][ T253] fib6_rule_lookup+0x334/0x630 [ 1997.394806][ T253] ip6_route_output_flags+0x259/0x480 [ 1997.394806][ T253] inet6_rtm_getroute+0x980/0xf70 [ 1997.394806][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 1997.394806][ T253] netlink_rcv_skb+0x130/0x360 [ 1997.394806][ T253] netlink_unicast+0x449/0x710 [ 1997.394806][ T253] netlink_sendmsg+0x723/0xbe0 [ 1997.394806][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1997.394806][ T253] ___sys_sendmsg+0xee/0x170 [ 1997.394806][ T253] __sys_sendmsg+0xcd/0x170 [ 1997.394806][ T253] do_syscall_64+0xc6/0x1e0 [ 1997.394806][ T253] [ 1997.397026][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1997.397026][ T253] netdev_get_by_index+0x5e/0x80 [ 1997.397026][ T253] fib6_nh_init+0x3d8/0x1580 [ 1997.397026][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1997.397026][ T253] addrconf_f6i_alloc+0x265/0x560 [ 1997.397026][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1997.397026][ T253] addrconf_join_anycast+0x1c0/0x220 [ 1997.397026][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1997.397026][ T253] addrconf_dad_completed+0x12b/0xe20 [ 1997.397026][ T253] addrconf_dad_begin+0x310/0x670 [ 1997.397026][ T253] addrconf_dad_work+0x10b/0xab0 [ 1997.397026][ T253] process_one_work+0x84d/0x18a0 [ 1997.397026][ T253] worker_thread+0x587/0xd30 [ 1997.397026][ T253] kthread+0x28a/0x350 [ 1997.397026][ T253] ret_from_fork+0x31/0x70 [ 1997.397026][ T253] ret_from_fork_asm+0x1a/0x30 [ 1997.397026][ T253] [ 1997.399196][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1997.399196][ T253] netdev_get_by_index+0x5e/0x80 [ 1997.399196][ T253] fib6_nh_init+0x3d8/0x1580 [ 1997.399196][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1997.399196][ T253] ip6_route_add+0x1c/0x140 [ 1997.399196][ T253] addrconf_prefix_route+0x2a6/0x430 [ 1997.399196][ T253] inet6_addr_add+0x4f8/0xa40 [ 1997.399196][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1997.399196][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.399196][ T253] netlink_rcv_skb+0x130/0x360 [ 1997.399196][ T253] netlink_unicast+0x449/0x710 [ 1997.399196][ T253] netlink_sendmsg+0x723/0xbe0 [ 1997.399196][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1997.399196][ T253] ___sys_sendmsg+0xee/0x170 [ 1997.399196][ T253] __sys_sendmsg+0xcd/0x170 [ 1997.399196][ T253] do_syscall_64+0xc6/0x1e0 [ 1997.399196][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.399196][ T253] [ 1997.401485][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1997.401485][ T253] netdev_get_by_index+0x5e/0x80 [ 1997.401485][ T253] fib6_nh_init+0x3d8/0x1580 [ 1997.401485][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1997.401485][ T253] addrconf_f6i_alloc+0x315/0x560 [ 1997.401485][ T253] ipv6_add_addr+0x411/0x2000 [ 1997.401485][ T253] inet6_addr_add+0x30e/0xa40 [ 1997.401485][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1997.401485][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.401485][ T253] netlink_rcv_skb+0x130/0x360 [ 1997.401485][ T253] netlink_unicast+0x449/0x710 [ 1997.401485][ T253] netlink_sendmsg+0x723/0xbe0 [ 1997.401485][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1997.401485][ T253] ___sys_sendmsg+0xee/0x170 [ 1997.401485][ T253] __sys_sendmsg+0xcd/0x170 [ 1997.401485][ T253] do_syscall_64+0xc6/0x1e0 [ 1997.401485][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.401485][ T253] [ 1997.403755][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1997.403755][ T253] netdev_get_by_index+0x5e/0x80 [ 1997.403755][ T253] fib6_nh_init+0x3d8/0x1580 [ 1997.403755][ T253] ip6_route_info_create+0xf18/0x17d0 [ 1997.403755][ T253] ip6_route_add+0x1c/0x140 [ 1997.403755][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 1997.403755][ T253] addrconf_add_dev+0xe2/0x170 [ 1997.403755][ T253] inet6_addr_add+0x12f/0xa40 [ 1997.403755][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 1997.403755][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.403755][ T253] netlink_rcv_skb+0x130/0x360 [ 1997.403755][ T253] netlink_unicast+0x449/0x710 [ 1997.403755][ T253] netlink_sendmsg+0x723/0xbe0 [ 1997.403755][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1997.403755][ T253] ___sys_sendmsg+0xee/0x170 [ 1997.403755][ T253] __sys_sendmsg+0xcd/0x170 [ 1997.403755][ T253] do_syscall_64+0xc6/0x1e0 [ 1997.403755][ T253] [ 1997.405980][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1997.405980][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 1997.405980][ T253] ipv6_find_idev+0x102/0x170 [ 1997.405980][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1997.405980][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.405980][ T253] netlink_rcv_skb+0x130/0x360 [ 1997.405980][ T253] netlink_unicast+0x449/0x710 [ 1997.405980][ T253] netlink_sendmsg+0x723/0xbe0 [ 1997.405980][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1997.405980][ T253] ___sys_sendmsg+0xee/0x170 [ 1997.405980][ T253] __sys_sendmsg+0xcd/0x170 [ 1997.405980][ T253] do_syscall_64+0xc6/0x1e0 [ 1997.405980][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.405980][ T253] [ 1997.407724][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 1997.407724][ T253] neigh_parms_alloc+0x1e5/0x510 [ 1997.407724][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 1997.407724][ T253] ipv6_find_idev+0x102/0x170 [ 1997.407724][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 1997.407724][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.407724][ T253] netlink_rcv_skb+0x130/0x360 [ 1997.407724][ T253] netlink_unicast+0x449/0x710 [ 1997.407724][ T253] netlink_sendmsg+0x723/0xbe0 [ 1997.407724][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 1997.407724][ T253] ___sys_sendmsg+0xee/0x170 [ 1997.407724][ T253] __sys_sendmsg+0xcd/0x170 [ 1997.407724][ T253] do_syscall_64+0xc6/0x1e0 [ 1997.407724][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.407724][ T253] [ 2007.498313][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2007.498791][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2007.498791][ T253] dst_init+0x84/0x4a0 [ 2007.498791][ T253] dst_alloc+0x97/0x150 [ 2007.498791][ T253] ip6_dst_alloc+0x23/0x90 [ 2007.498791][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2007.498791][ T253] ip6_pol_route+0x56f/0x840 [ 2007.498791][ T253] fib6_rule_lookup+0x334/0x630 [ 2007.498791][ T253] ip6_route_output_flags+0x259/0x480 [ 2007.498791][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2007.498791][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2007.498791][ T253] netlink_rcv_skb+0x130/0x360 [ 2007.498791][ T253] netlink_unicast+0x449/0x710 [ 2007.498791][ T253] netlink_sendmsg+0x723/0xbe0 [ 2007.498791][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2007.498791][ T253] ___sys_sendmsg+0xee/0x170 [ 2007.498791][ T253] __sys_sendmsg+0xcd/0x170 [ 2007.498791][ T253] do_syscall_64+0xc6/0x1e0 [ 2007.498791][ T253] [ 2007.501032][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2007.501032][ T253] netdev_get_by_index+0x5e/0x80 [ 2007.501032][ T253] fib6_nh_init+0x3d8/0x1580 [ 2007.501032][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2007.501032][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2007.501032][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2007.501032][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2007.501032][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2007.501032][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2007.501032][ T253] addrconf_dad_begin+0x310/0x670 [ 2007.501032][ T253] addrconf_dad_work+0x10b/0xab0 [ 2007.501032][ T253] process_one_work+0x84d/0x18a0 [ 2007.501032][ T253] worker_thread+0x587/0xd30 [ 2007.501032][ T253] kthread+0x28a/0x350 [ 2007.501032][ T253] ret_from_fork+0x31/0x70 [ 2007.501032][ T253] ret_from_fork_asm+0x1a/0x30 [ 2007.501032][ T253] [ 2007.503199][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2007.503199][ T253] netdev_get_by_index+0x5e/0x80 [ 2007.503199][ T253] fib6_nh_init+0x3d8/0x1580 [ 2007.503199][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2007.503199][ T253] ip6_route_add+0x1c/0x140 [ 2007.503199][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2007.503199][ T253] inet6_addr_add+0x4f8/0xa40 [ 2007.503199][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2007.503199][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.503199][ T253] netlink_rcv_skb+0x130/0x360 [ 2007.503199][ T253] netlink_unicast+0x449/0x710 [ 2007.503199][ T253] netlink_sendmsg+0x723/0xbe0 [ 2007.503199][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2007.503199][ T253] ___sys_sendmsg+0xee/0x170 [ 2007.503199][ T253] __sys_sendmsg+0xcd/0x170 [ 2007.503199][ T253] do_syscall_64+0xc6/0x1e0 [ 2007.503199][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.503199][ T253] [ 2007.505462][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2007.505462][ T253] netdev_get_by_index+0x5e/0x80 [ 2007.505462][ T253] fib6_nh_init+0x3d8/0x1580 [ 2007.505462][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2007.505462][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2007.505462][ T253] ipv6_add_addr+0x411/0x2000 [ 2007.505462][ T253] inet6_addr_add+0x30e/0xa40 [ 2007.505462][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2007.505462][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.505462][ T253] netlink_rcv_skb+0x130/0x360 [ 2007.505462][ T253] netlink_unicast+0x449/0x710 [ 2007.505462][ T253] netlink_sendmsg+0x723/0xbe0 [ 2007.505462][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2007.505462][ T253] ___sys_sendmsg+0xee/0x170 [ 2007.505462][ T253] __sys_sendmsg+0xcd/0x170 [ 2007.505462][ T253] do_syscall_64+0xc6/0x1e0 [ 2007.505462][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.505462][ T253] [ 2007.507727][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2007.507727][ T253] netdev_get_by_index+0x5e/0x80 [ 2007.507727][ T253] fib6_nh_init+0x3d8/0x1580 [ 2007.507727][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2007.507727][ T253] ip6_route_add+0x1c/0x140 [ 2007.507727][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2007.507727][ T253] addrconf_add_dev+0xe2/0x170 [ 2007.507727][ T253] inet6_addr_add+0x12f/0xa40 [ 2007.507727][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2007.507727][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.507727][ T253] netlink_rcv_skb+0x130/0x360 [ 2007.507727][ T253] netlink_unicast+0x449/0x710 [ 2007.507727][ T253] netlink_sendmsg+0x723/0xbe0 [ 2007.507727][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2007.507727][ T253] ___sys_sendmsg+0xee/0x170 [ 2007.507727][ T253] __sys_sendmsg+0xcd/0x170 [ 2007.507727][ T253] do_syscall_64+0xc6/0x1e0 [ 2007.507727][ T253] [ 2007.509960][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2007.509960][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2007.509960][ T253] ipv6_find_idev+0x102/0x170 [ 2007.509960][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2007.509960][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.509960][ T253] netlink_rcv_skb+0x130/0x360 [ 2007.509960][ T253] netlink_unicast+0x449/0x710 [ 2007.509960][ T253] netlink_sendmsg+0x723/0xbe0 [ 2007.509960][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2007.509960][ T253] ___sys_sendmsg+0xee/0x170 [ 2007.509960][ T253] __sys_sendmsg+0xcd/0x170 [ 2007.509960][ T253] do_syscall_64+0xc6/0x1e0 [ 2007.509960][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.509960][ T253] [ 2007.511704][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2007.511704][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2007.511704][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2007.511704][ T253] ipv6_find_idev+0x102/0x170 [ 2007.511704][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2007.511704][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.511704][ T253] netlink_rcv_skb+0x130/0x360 [ 2007.511704][ T253] netlink_unicast+0x449/0x710 [ 2007.511704][ T253] netlink_sendmsg+0x723/0xbe0 [ 2007.511704][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2007.511704][ T253] ___sys_sendmsg+0xee/0x170 [ 2007.511704][ T253] __sys_sendmsg+0xcd/0x170 [ 2007.511704][ T253] do_syscall_64+0xc6/0x1e0 [ 2007.511704][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.511704][ T253] [ 2017.754309][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2017.754804][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2017.754804][ T253] dst_init+0x84/0x4a0 [ 2017.754804][ T253] dst_alloc+0x97/0x150 [ 2017.754804][ T253] ip6_dst_alloc+0x23/0x90 [ 2017.754804][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2017.754804][ T253] ip6_pol_route+0x56f/0x840 [ 2017.754804][ T253] fib6_rule_lookup+0x334/0x630 [ 2017.754804][ T253] ip6_route_output_flags+0x259/0x480 [ 2017.754804][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2017.754804][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2017.754804][ T253] netlink_rcv_skb+0x130/0x360 [ 2017.754804][ T253] netlink_unicast+0x449/0x710 [ 2017.754804][ T253] netlink_sendmsg+0x723/0xbe0 [ 2017.754804][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2017.754804][ T253] ___sys_sendmsg+0xee/0x170 [ 2017.754804][ T253] __sys_sendmsg+0xcd/0x170 [ 2017.754804][ T253] do_syscall_64+0xc6/0x1e0 [ 2017.754804][ T253] [ 2017.757024][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2017.757024][ T253] netdev_get_by_index+0x5e/0x80 [ 2017.757024][ T253] fib6_nh_init+0x3d8/0x1580 [ 2017.757024][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2017.757024][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2017.757024][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2017.757024][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2017.757024][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2017.757024][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2017.757024][ T253] addrconf_dad_begin+0x310/0x670 [ 2017.757024][ T253] addrconf_dad_work+0x10b/0xab0 [ 2017.757024][ T253] process_one_work+0x84d/0x18a0 [ 2017.757024][ T253] worker_thread+0x587/0xd30 [ 2017.757024][ T253] kthread+0x28a/0x350 [ 2017.757024][ T253] ret_from_fork+0x31/0x70 [ 2017.757024][ T253] ret_from_fork_asm+0x1a/0x30 [ 2017.757024][ T253] [ 2017.759184][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2017.759184][ T253] netdev_get_by_index+0x5e/0x80 [ 2017.759184][ T253] fib6_nh_init+0x3d8/0x1580 [ 2017.759184][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2017.759184][ T253] ip6_route_add+0x1c/0x140 [ 2017.759184][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2017.759184][ T253] inet6_addr_add+0x4f8/0xa40 [ 2017.759184][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2017.759184][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2017.759184][ T253] netlink_rcv_skb+0x130/0x360 [ 2017.759184][ T253] netlink_unicast+0x449/0x710 [ 2017.759184][ T253] netlink_sendmsg+0x723/0xbe0 [ 2017.759184][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2017.759184][ T253] ___sys_sendmsg+0xee/0x170 [ 2017.759184][ T253] __sys_sendmsg+0xcd/0x170 [ 2017.759184][ T253] do_syscall_64+0xc6/0x1e0 [ 2017.759184][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2017.759184][ T253] [ 2017.761466][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2017.761466][ T253] netdev_get_by_index+0x5e/0x80 [ 2017.761466][ T253] fib6_nh_init+0x3d8/0x1580 [ 2017.761466][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2017.761466][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2017.761466][ T253] ipv6_add_addr+0x411/0x2000 [ 2017.761466][ T253] inet6_addr_add+0x30e/0xa40 [ 2017.761466][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2017.761466][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2017.761466][ T253] netlink_rcv_skb+0x130/0x360 [ 2017.761466][ T253] netlink_unicast+0x449/0x710 [ 2017.761466][ T253] netlink_sendmsg+0x723/0xbe0 [ 2017.761466][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2017.761466][ T253] ___sys_sendmsg+0xee/0x170 [ 2017.761466][ T253] __sys_sendmsg+0xcd/0x170 [ 2017.761466][ T253] do_syscall_64+0xc6/0x1e0 [ 2017.761466][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2017.761466][ T253] [ 2017.763733][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2017.763733][ T253] netdev_get_by_index+0x5e/0x80 [ 2017.763733][ T253] fib6_nh_init+0x3d8/0x1580 [ 2017.763733][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2017.763733][ T253] ip6_route_add+0x1c/0x140 [ 2017.763733][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2017.763733][ T253] addrconf_add_dev+0xe2/0x170 [ 2017.763733][ T253] inet6_addr_add+0x12f/0xa40 [ 2017.763733][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2017.763733][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2017.763733][ T253] netlink_rcv_skb+0x130/0x360 [ 2017.763733][ T253] netlink_unicast+0x449/0x710 [ 2017.763733][ T253] netlink_sendmsg+0x723/0xbe0 [ 2017.763733][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2017.763733][ T253] ___sys_sendmsg+0xee/0x170 [ 2017.763733][ T253] __sys_sendmsg+0xcd/0x170 [ 2017.763733][ T253] do_syscall_64+0xc6/0x1e0 [ 2017.763733][ T253] [ 2017.765957][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2017.765957][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2017.765957][ T253] ipv6_find_idev+0x102/0x170 [ 2017.765957][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2017.765957][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2017.765957][ T253] netlink_rcv_skb+0x130/0x360 [ 2017.765957][ T253] netlink_unicast+0x449/0x710 [ 2017.765957][ T253] netlink_sendmsg+0x723/0xbe0 [ 2017.765957][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2017.765957][ T253] ___sys_sendmsg+0xee/0x170 [ 2017.765957][ T253] __sys_sendmsg+0xcd/0x170 [ 2017.765957][ T253] do_syscall_64+0xc6/0x1e0 [ 2017.765957][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2017.765957][ T253] [ 2017.767711][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2017.767711][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2017.767711][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2017.767711][ T253] ipv6_find_idev+0x102/0x170 [ 2017.767711][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2017.767711][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2017.767711][ T253] netlink_rcv_skb+0x130/0x360 [ 2017.767711][ T253] netlink_unicast+0x449/0x710 [ 2017.767711][ T253] netlink_sendmsg+0x723/0xbe0 [ 2017.767711][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2017.767711][ T253] ___sys_sendmsg+0xee/0x170 [ 2017.767711][ T253] __sys_sendmsg+0xcd/0x170 [ 2017.767711][ T253] do_syscall_64+0xc6/0x1e0 [ 2017.767711][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2017.767711][ T253] [ 2028.010309][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2028.010792][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2028.010792][ T253] dst_init+0x84/0x4a0 [ 2028.010792][ T253] dst_alloc+0x97/0x150 [ 2028.010792][ T253] ip6_dst_alloc+0x23/0x90 [ 2028.010792][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2028.010792][ T253] ip6_pol_route+0x56f/0x840 [ 2028.010792][ T253] fib6_rule_lookup+0x334/0x630 [ 2028.010792][ T253] ip6_route_output_flags+0x259/0x480 [ 2028.010792][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2028.010792][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2028.010792][ T253] netlink_rcv_skb+0x130/0x360 [ 2028.010792][ T253] netlink_unicast+0x449/0x710 [ 2028.010792][ T253] netlink_sendmsg+0x723/0xbe0 [ 2028.010792][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2028.010792][ T253] ___sys_sendmsg+0xee/0x170 [ 2028.010792][ T253] __sys_sendmsg+0xcd/0x170 [ 2028.010792][ T253] do_syscall_64+0xc6/0x1e0 [ 2028.010792][ T253] [ 2028.013016][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2028.013016][ T253] netdev_get_by_index+0x5e/0x80 [ 2028.013016][ T253] fib6_nh_init+0x3d8/0x1580 [ 2028.013016][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2028.013016][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2028.013016][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2028.013016][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2028.013016][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2028.013016][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2028.013016][ T253] addrconf_dad_begin+0x310/0x670 [ 2028.013016][ T253] addrconf_dad_work+0x10b/0xab0 [ 2028.013016][ T253] process_one_work+0x84d/0x18a0 [ 2028.013016][ T253] worker_thread+0x587/0xd30 [ 2028.013016][ T253] kthread+0x28a/0x350 [ 2028.013016][ T253] ret_from_fork+0x31/0x70 [ 2028.013016][ T253] ret_from_fork_asm+0x1a/0x30 [ 2028.013016][ T253] [ 2028.015179][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2028.015179][ T253] netdev_get_by_index+0x5e/0x80 [ 2028.015179][ T253] fib6_nh_init+0x3d8/0x1580 [ 2028.015179][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2028.015179][ T253] ip6_route_add+0x1c/0x140 [ 2028.015179][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2028.015179][ T253] inet6_addr_add+0x4f8/0xa40 [ 2028.015179][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2028.015179][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.015179][ T253] netlink_rcv_skb+0x130/0x360 [ 2028.015179][ T253] netlink_unicast+0x449/0x710 [ 2028.015179][ T253] netlink_sendmsg+0x723/0xbe0 [ 2028.015179][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2028.015179][ T253] ___sys_sendmsg+0xee/0x170 [ 2028.015179][ T253] __sys_sendmsg+0xcd/0x170 [ 2028.015179][ T253] do_syscall_64+0xc6/0x1e0 [ 2028.015179][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2028.015179][ T253] [ 2028.017447][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2028.017447][ T253] netdev_get_by_index+0x5e/0x80 [ 2028.017447][ T253] fib6_nh_init+0x3d8/0x1580 [ 2028.017447][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2028.017447][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2028.017447][ T253] ipv6_add_addr+0x411/0x2000 [ 2028.017447][ T253] inet6_addr_add+0x30e/0xa40 [ 2028.017447][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2028.017447][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.017447][ T253] netlink_rcv_skb+0x130/0x360 [ 2028.017447][ T253] netlink_unicast+0x449/0x710 [ 2028.017447][ T253] netlink_sendmsg+0x723/0xbe0 [ 2028.017447][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2028.017447][ T253] ___sys_sendmsg+0xee/0x170 [ 2028.017447][ T253] __sys_sendmsg+0xcd/0x170 [ 2028.017447][ T253] do_syscall_64+0xc6/0x1e0 [ 2028.017447][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2028.017447][ T253] [ 2028.019726][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2028.019726][ T253] netdev_get_by_index+0x5e/0x80 [ 2028.019726][ T253] fib6_nh_init+0x3d8/0x1580 [ 2028.019726][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2028.019726][ T253] ip6_route_add+0x1c/0x140 [ 2028.019726][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2028.019726][ T253] addrconf_add_dev+0xe2/0x170 [ 2028.019726][ T253] inet6_addr_add+0x12f/0xa40 [ 2028.019726][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2028.019726][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.019726][ T253] netlink_rcv_skb+0x130/0x360 [ 2028.019726][ T253] netlink_unicast+0x449/0x710 [ 2028.019726][ T253] netlink_sendmsg+0x723/0xbe0 [ 2028.019726][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2028.019726][ T253] ___sys_sendmsg+0xee/0x170 [ 2028.019726][ T253] __sys_sendmsg+0xcd/0x170 [ 2028.019726][ T253] do_syscall_64+0xc6/0x1e0 [ 2028.019726][ T253] [ 2028.021943][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2028.021943][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2028.021943][ T253] ipv6_find_idev+0x102/0x170 [ 2028.021943][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2028.021943][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.021943][ T253] netlink_rcv_skb+0x130/0x360 [ 2028.021943][ T253] netlink_unicast+0x449/0x710 [ 2028.021943][ T253] netlink_sendmsg+0x723/0xbe0 [ 2028.021943][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2028.021943][ T253] ___sys_sendmsg+0xee/0x170 [ 2028.021943][ T253] __sys_sendmsg+0xcd/0x170 [ 2028.021943][ T253] do_syscall_64+0xc6/0x1e0 [ 2028.021943][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2028.021943][ T253] [ 2028.023678][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2028.023678][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2028.023678][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2028.023678][ T253] ipv6_find_idev+0x102/0x170 [ 2028.023678][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2028.023678][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2028.023678][ T253] netlink_rcv_skb+0x130/0x360 [ 2028.023678][ T253] netlink_unicast+0x449/0x710 [ 2028.023678][ T253] netlink_sendmsg+0x723/0xbe0 [ 2028.023678][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2028.023678][ T253] ___sys_sendmsg+0xee/0x170 [ 2028.023678][ T253] __sys_sendmsg+0xcd/0x170 [ 2028.023678][ T253] do_syscall_64+0xc6/0x1e0 [ 2028.023678][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2028.023678][ T253] [ 2038.274319][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2038.274795][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2038.274795][ T253] dst_init+0x84/0x4a0 [ 2038.274795][ T253] dst_alloc+0x97/0x150 [ 2038.274795][ T253] ip6_dst_alloc+0x23/0x90 [ 2038.274795][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2038.274795][ T253] ip6_pol_route+0x56f/0x840 [ 2038.274795][ T253] fib6_rule_lookup+0x334/0x630 [ 2038.274795][ T253] ip6_route_output_flags+0x259/0x480 [ 2038.274795][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2038.274795][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2038.274795][ T253] netlink_rcv_skb+0x130/0x360 [ 2038.274795][ T253] netlink_unicast+0x449/0x710 [ 2038.274795][ T253] netlink_sendmsg+0x723/0xbe0 [ 2038.274795][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2038.274795][ T253] ___sys_sendmsg+0xee/0x170 [ 2038.274795][ T253] __sys_sendmsg+0xcd/0x170 [ 2038.274795][ T253] do_syscall_64+0xc6/0x1e0 [ 2038.274795][ T253] [ 2038.277026][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2038.277026][ T253] netdev_get_by_index+0x5e/0x80 [ 2038.277026][ T253] fib6_nh_init+0x3d8/0x1580 [ 2038.277026][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2038.277026][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2038.277026][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2038.277026][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2038.277026][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2038.277026][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2038.277026][ T253] addrconf_dad_begin+0x310/0x670 [ 2038.277026][ T253] addrconf_dad_work+0x10b/0xab0 [ 2038.277026][ T253] process_one_work+0x84d/0x18a0 [ 2038.277026][ T253] worker_thread+0x587/0xd30 [ 2038.277026][ T253] kthread+0x28a/0x350 [ 2038.277026][ T253] ret_from_fork+0x31/0x70 [ 2038.277026][ T253] ret_from_fork_asm+0x1a/0x30 [ 2038.277026][ T253] [ 2038.279187][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2038.279187][ T253] netdev_get_by_index+0x5e/0x80 [ 2038.279187][ T253] fib6_nh_init+0x3d8/0x1580 [ 2038.279187][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2038.279187][ T253] ip6_route_add+0x1c/0x140 [ 2038.279187][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2038.279187][ T253] inet6_addr_add+0x4f8/0xa40 [ 2038.279187][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2038.279187][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.279187][ T253] netlink_rcv_skb+0x130/0x360 [ 2038.279187][ T253] netlink_unicast+0x449/0x710 [ 2038.279187][ T253] netlink_sendmsg+0x723/0xbe0 [ 2038.279187][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2038.279187][ T253] ___sys_sendmsg+0xee/0x170 [ 2038.279187][ T253] __sys_sendmsg+0xcd/0x170 [ 2038.279187][ T253] do_syscall_64+0xc6/0x1e0 [ 2038.279187][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.279187][ T253] [ 2038.281471][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2038.281471][ T253] netdev_get_by_index+0x5e/0x80 [ 2038.281471][ T253] fib6_nh_init+0x3d8/0x1580 [ 2038.281471][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2038.281471][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2038.281471][ T253] ipv6_add_addr+0x411/0x2000 [ 2038.281471][ T253] inet6_addr_add+0x30e/0xa40 [ 2038.281471][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2038.281471][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.281471][ T253] netlink_rcv_skb+0x130/0x360 [ 2038.281471][ T253] netlink_unicast+0x449/0x710 [ 2038.281471][ T253] netlink_sendmsg+0x723/0xbe0 [ 2038.281471][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2038.281471][ T253] ___sys_sendmsg+0xee/0x170 [ 2038.281471][ T253] __sys_sendmsg+0xcd/0x170 [ 2038.281471][ T253] do_syscall_64+0xc6/0x1e0 [ 2038.281471][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.281471][ T253] [ 2038.283731][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2038.283731][ T253] netdev_get_by_index+0x5e/0x80 [ 2038.283731][ T253] fib6_nh_init+0x3d8/0x1580 [ 2038.283731][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2038.283731][ T253] ip6_route_add+0x1c/0x140 [ 2038.283731][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2038.283731][ T253] addrconf_add_dev+0xe2/0x170 [ 2038.283731][ T253] inet6_addr_add+0x12f/0xa40 [ 2038.283731][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2038.283731][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.283731][ T253] netlink_rcv_skb+0x130/0x360 [ 2038.283731][ T253] netlink_unicast+0x449/0x710 [ 2038.283731][ T253] netlink_sendmsg+0x723/0xbe0 [ 2038.283731][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2038.283731][ T253] ___sys_sendmsg+0xee/0x170 [ 2038.283731][ T253] __sys_sendmsg+0xcd/0x170 [ 2038.283731][ T253] do_syscall_64+0xc6/0x1e0 [ 2038.283731][ T253] [ 2038.285961][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2038.285961][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2038.285961][ T253] ipv6_find_idev+0x102/0x170 [ 2038.285961][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2038.285961][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.285961][ T253] netlink_rcv_skb+0x130/0x360 [ 2038.285961][ T253] netlink_unicast+0x449/0x710 [ 2038.285961][ T253] netlink_sendmsg+0x723/0xbe0 [ 2038.285961][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2038.285961][ T253] ___sys_sendmsg+0xee/0x170 [ 2038.285961][ T253] __sys_sendmsg+0xcd/0x170 [ 2038.285961][ T253] do_syscall_64+0xc6/0x1e0 [ 2038.285961][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.285961][ T253] [ 2038.287706][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2038.287706][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2038.287706][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2038.287706][ T253] ipv6_find_idev+0x102/0x170 [ 2038.287706][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2038.287706][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.287706][ T253] netlink_rcv_skb+0x130/0x360 [ 2038.287706][ T253] netlink_unicast+0x449/0x710 [ 2038.287706][ T253] netlink_sendmsg+0x723/0xbe0 [ 2038.287706][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2038.287706][ T253] ___sys_sendmsg+0xee/0x170 [ 2038.287706][ T253] __sys_sendmsg+0xcd/0x170 [ 2038.287706][ T253] do_syscall_64+0xc6/0x1e0 [ 2038.287706][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.287706][ T253] [ 2048.530316][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2048.530795][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2048.530795][ T253] dst_init+0x84/0x4a0 [ 2048.530795][ T253] dst_alloc+0x97/0x150 [ 2048.530795][ T253] ip6_dst_alloc+0x23/0x90 [ 2048.530795][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2048.530795][ T253] ip6_pol_route+0x56f/0x840 [ 2048.530795][ T253] fib6_rule_lookup+0x334/0x630 [ 2048.530795][ T253] ip6_route_output_flags+0x259/0x480 [ 2048.530795][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2048.530795][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2048.530795][ T253] netlink_rcv_skb+0x130/0x360 [ 2048.530795][ T253] netlink_unicast+0x449/0x710 [ 2048.530795][ T253] netlink_sendmsg+0x723/0xbe0 [ 2048.530795][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2048.530795][ T253] ___sys_sendmsg+0xee/0x170 [ 2048.530795][ T253] __sys_sendmsg+0xcd/0x170 [ 2048.530795][ T253] do_syscall_64+0xc6/0x1e0 [ 2048.530795][ T253] [ 2048.533028][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2048.533028][ T253] netdev_get_by_index+0x5e/0x80 [ 2048.533028][ T253] fib6_nh_init+0x3d8/0x1580 [ 2048.533028][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2048.533028][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2048.533028][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2048.533028][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2048.533028][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2048.533028][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2048.533028][ T253] addrconf_dad_begin+0x310/0x670 [ 2048.533028][ T253] addrconf_dad_work+0x10b/0xab0 [ 2048.533028][ T253] process_one_work+0x84d/0x18a0 [ 2048.533028][ T253] worker_thread+0x587/0xd30 [ 2048.533028][ T253] kthread+0x28a/0x350 [ 2048.533028][ T253] ret_from_fork+0x31/0x70 [ 2048.533028][ T253] ret_from_fork_asm+0x1a/0x30 [ 2048.533028][ T253] [ 2048.535188][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2048.535188][ T253] netdev_get_by_index+0x5e/0x80 [ 2048.535188][ T253] fib6_nh_init+0x3d8/0x1580 [ 2048.535188][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2048.535188][ T253] ip6_route_add+0x1c/0x140 [ 2048.535188][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2048.535188][ T253] inet6_addr_add+0x4f8/0xa40 [ 2048.535188][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2048.535188][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.535188][ T253] netlink_rcv_skb+0x130/0x360 [ 2048.535188][ T253] netlink_unicast+0x449/0x710 [ 2048.535188][ T253] netlink_sendmsg+0x723/0xbe0 [ 2048.535188][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2048.535188][ T253] ___sys_sendmsg+0xee/0x170 [ 2048.535188][ T253] __sys_sendmsg+0xcd/0x170 [ 2048.535188][ T253] do_syscall_64+0xc6/0x1e0 [ 2048.535188][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.535188][ T253] [ 2048.537452][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2048.537452][ T253] netdev_get_by_index+0x5e/0x80 [ 2048.537452][ T253] fib6_nh_init+0x3d8/0x1580 [ 2048.537452][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2048.537452][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2048.537452][ T253] ipv6_add_addr+0x411/0x2000 [ 2048.537452][ T253] inet6_addr_add+0x30e/0xa40 [ 2048.537452][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2048.537452][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.537452][ T253] netlink_rcv_skb+0x130/0x360 [ 2048.537452][ T253] netlink_unicast+0x449/0x710 [ 2048.537452][ T253] netlink_sendmsg+0x723/0xbe0 [ 2048.537452][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2048.537452][ T253] ___sys_sendmsg+0xee/0x170 [ 2048.537452][ T253] __sys_sendmsg+0xcd/0x170 [ 2048.537452][ T253] do_syscall_64+0xc6/0x1e0 [ 2048.537452][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.537452][ T253] [ 2048.539725][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2048.539725][ T253] netdev_get_by_index+0x5e/0x80 [ 2048.539725][ T253] fib6_nh_init+0x3d8/0x1580 [ 2048.539725][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2048.539725][ T253] ip6_route_add+0x1c/0x140 [ 2048.539725][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2048.539725][ T253] addrconf_add_dev+0xe2/0x170 [ 2048.539725][ T253] inet6_addr_add+0x12f/0xa40 [ 2048.539725][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2048.539725][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.539725][ T253] netlink_rcv_skb+0x130/0x360 [ 2048.539725][ T253] netlink_unicast+0x449/0x710 [ 2048.539725][ T253] netlink_sendmsg+0x723/0xbe0 [ 2048.539725][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2048.539725][ T253] ___sys_sendmsg+0xee/0x170 [ 2048.539725][ T253] __sys_sendmsg+0xcd/0x170 [ 2048.539725][ T253] do_syscall_64+0xc6/0x1e0 [ 2048.539725][ T253] [ 2048.541944][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2048.541944][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2048.541944][ T253] ipv6_find_idev+0x102/0x170 [ 2048.541944][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2048.541944][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.541944][ T253] netlink_rcv_skb+0x130/0x360 [ 2048.541944][ T253] netlink_unicast+0x449/0x710 [ 2048.541944][ T253] netlink_sendmsg+0x723/0xbe0 [ 2048.541944][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2048.541944][ T253] ___sys_sendmsg+0xee/0x170 [ 2048.541944][ T253] __sys_sendmsg+0xcd/0x170 [ 2048.541944][ T253] do_syscall_64+0xc6/0x1e0 [ 2048.541944][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.541944][ T253] [ 2048.543684][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2048.543684][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2048.543684][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2048.543684][ T253] ipv6_find_idev+0x102/0x170 [ 2048.543684][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2048.543684][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.543684][ T253] netlink_rcv_skb+0x130/0x360 [ 2048.543684][ T253] netlink_unicast+0x449/0x710 [ 2048.543684][ T253] netlink_sendmsg+0x723/0xbe0 [ 2048.543684][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2048.543684][ T253] ___sys_sendmsg+0xee/0x170 [ 2048.543684][ T253] __sys_sendmsg+0xcd/0x170 [ 2048.543684][ T253] do_syscall_64+0xc6/0x1e0 [ 2048.543684][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.543684][ T253] [ 2058.786312][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2058.786797][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2058.786797][ T253] dst_init+0x84/0x4a0 [ 2058.786797][ T253] dst_alloc+0x97/0x150 [ 2058.786797][ T253] ip6_dst_alloc+0x23/0x90 [ 2058.786797][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2058.786797][ T253] ip6_pol_route+0x56f/0x840 [ 2058.786797][ T253] fib6_rule_lookup+0x334/0x630 [ 2058.786797][ T253] ip6_route_output_flags+0x259/0x480 [ 2058.786797][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2058.786797][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2058.786797][ T253] netlink_rcv_skb+0x130/0x360 [ 2058.786797][ T253] netlink_unicast+0x449/0x710 [ 2058.786797][ T253] netlink_sendmsg+0x723/0xbe0 [ 2058.786797][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2058.786797][ T253] ___sys_sendmsg+0xee/0x170 [ 2058.786797][ T253] __sys_sendmsg+0xcd/0x170 [ 2058.786797][ T253] do_syscall_64+0xc6/0x1e0 [ 2058.786797][ T253] [ 2058.789552][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2058.789552][ T253] netdev_get_by_index+0x5e/0x80 [ 2058.789552][ T253] fib6_nh_init+0x3d8/0x1580 [ 2058.789552][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2058.789552][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2058.789552][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2058.789552][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2058.789552][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2058.789552][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2058.789552][ T253] addrconf_dad_begin+0x310/0x670 [ 2058.789552][ T253] addrconf_dad_work+0x10b/0xab0 [ 2058.789552][ T253] process_one_work+0x84d/0x18a0 [ 2058.789552][ T253] worker_thread+0x587/0xd30 [ 2058.789552][ T253] kthread+0x28a/0x350 [ 2058.789552][ T253] ret_from_fork+0x31/0x70 [ 2058.789552][ T253] ret_from_fork_asm+0x1a/0x30 [ 2058.789552][ T253] [ 2058.791720][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2058.791720][ T253] netdev_get_by_index+0x5e/0x80 [ 2058.791720][ T253] fib6_nh_init+0x3d8/0x1580 [ 2058.791720][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2058.791720][ T253] ip6_route_add+0x1c/0x140 [ 2058.791720][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2058.791720][ T253] inet6_addr_add+0x4f8/0xa40 [ 2058.791720][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2058.791720][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.791720][ T253] netlink_rcv_skb+0x130/0x360 [ 2058.791720][ T253] netlink_unicast+0x449/0x710 [ 2058.791720][ T253] netlink_sendmsg+0x723/0xbe0 [ 2058.791720][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2058.791720][ T253] ___sys_sendmsg+0xee/0x170 [ 2058.791720][ T253] __sys_sendmsg+0xcd/0x170 [ 2058.791720][ T253] do_syscall_64+0xc6/0x1e0 [ 2058.791720][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.791720][ T253] [ 2058.794369][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2058.794369][ T253] netdev_get_by_index+0x5e/0x80 [ 2058.794369][ T253] fib6_nh_init+0x3d8/0x1580 [ 2058.794369][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2058.794369][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2058.794369][ T253] ipv6_add_addr+0x411/0x2000 [ 2058.794369][ T253] inet6_addr_add+0x30e/0xa40 [ 2058.794369][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2058.794369][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.794369][ T253] netlink_rcv_skb+0x130/0x360 [ 2058.794369][ T253] netlink_unicast+0x449/0x710 [ 2058.794369][ T253] netlink_sendmsg+0x723/0xbe0 [ 2058.794369][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2058.794369][ T253] ___sys_sendmsg+0xee/0x170 [ 2058.794369][ T253] __sys_sendmsg+0xcd/0x170 [ 2058.794369][ T253] do_syscall_64+0xc6/0x1e0 [ 2058.794369][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.794369][ T253] [ 2058.796637][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2058.796637][ T253] netdev_get_by_index+0x5e/0x80 [ 2058.796637][ T253] fib6_nh_init+0x3d8/0x1580 [ 2058.796637][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2058.796637][ T253] ip6_route_add+0x1c/0x140 [ 2058.796637][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2058.796637][ T253] addrconf_add_dev+0xe2/0x170 [ 2058.796637][ T253] inet6_addr_add+0x12f/0xa40 [ 2058.796637][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2058.796637][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.796637][ T253] netlink_rcv_skb+0x130/0x360 [ 2058.796637][ T253] netlink_unicast+0x449/0x710 [ 2058.796637][ T253] netlink_sendmsg+0x723/0xbe0 [ 2058.796637][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2058.796637][ T253] ___sys_sendmsg+0xee/0x170 [ 2058.796637][ T253] __sys_sendmsg+0xcd/0x170 [ 2058.796637][ T253] do_syscall_64+0xc6/0x1e0 [ 2058.796637][ T253] [ 2058.798859][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2058.798859][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2058.798859][ T253] ipv6_find_idev+0x102/0x170 [ 2058.798859][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2058.798859][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.798859][ T253] netlink_rcv_skb+0x130/0x360 [ 2058.798859][ T253] netlink_unicast+0x449/0x710 [ 2058.798859][ T253] netlink_sendmsg+0x723/0xbe0 [ 2058.798859][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2058.798859][ T253] ___sys_sendmsg+0xee/0x170 [ 2058.798859][ T253] __sys_sendmsg+0xcd/0x170 [ 2058.798859][ T253] do_syscall_64+0xc6/0x1e0 [ 2058.798859][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.798859][ T253] [ 2058.800608][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2058.800608][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2058.800608][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2058.800608][ T253] ipv6_find_idev+0x102/0x170 [ 2058.800608][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2058.800608][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.800608][ T253] netlink_rcv_skb+0x130/0x360 [ 2058.800608][ T253] netlink_unicast+0x449/0x710 [ 2058.800608][ T253] netlink_sendmsg+0x723/0xbe0 [ 2058.800608][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2058.800608][ T253] ___sys_sendmsg+0xee/0x170 [ 2058.800608][ T253] __sys_sendmsg+0xcd/0x170 [ 2058.800608][ T253] do_syscall_64+0xc6/0x1e0 [ 2058.800608][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.800608][ T253] [ 2069.042294][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2069.042789][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2069.042789][ T253] dst_init+0x84/0x4a0 [ 2069.042789][ T253] dst_alloc+0x97/0x150 [ 2069.042789][ T253] ip6_dst_alloc+0x23/0x90 [ 2069.042789][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2069.042789][ T253] ip6_pol_route+0x56f/0x840 [ 2069.042789][ T253] fib6_rule_lookup+0x334/0x630 [ 2069.042789][ T253] ip6_route_output_flags+0x259/0x480 [ 2069.042789][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2069.042789][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2069.042789][ T253] netlink_rcv_skb+0x130/0x360 [ 2069.042789][ T253] netlink_unicast+0x449/0x710 [ 2069.042789][ T253] netlink_sendmsg+0x723/0xbe0 [ 2069.042789][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2069.042789][ T253] ___sys_sendmsg+0xee/0x170 [ 2069.042789][ T253] __sys_sendmsg+0xcd/0x170 [ 2069.042789][ T253] do_syscall_64+0xc6/0x1e0 [ 2069.042789][ T253] [ 2069.045011][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2069.045011][ T253] netdev_get_by_index+0x5e/0x80 [ 2069.045011][ T253] fib6_nh_init+0x3d8/0x1580 [ 2069.045011][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2069.045011][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2069.045011][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2069.045011][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2069.045011][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2069.045011][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2069.045011][ T253] addrconf_dad_begin+0x310/0x670 [ 2069.045011][ T253] addrconf_dad_work+0x10b/0xab0 [ 2069.045011][ T253] process_one_work+0x84d/0x18a0 [ 2069.045011][ T253] worker_thread+0x587/0xd30 [ 2069.045011][ T253] kthread+0x28a/0x350 [ 2069.045011][ T253] ret_from_fork+0x31/0x70 [ 2069.045011][ T253] ret_from_fork_asm+0x1a/0x30 [ 2069.045011][ T253] [ 2069.047186][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2069.047186][ T253] netdev_get_by_index+0x5e/0x80 [ 2069.047186][ T253] fib6_nh_init+0x3d8/0x1580 [ 2069.047186][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2069.047186][ T253] ip6_route_add+0x1c/0x140 [ 2069.047186][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2069.047186][ T253] inet6_addr_add+0x4f8/0xa40 [ 2069.047186][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2069.047186][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2069.047186][ T253] netlink_rcv_skb+0x130/0x360 [ 2069.047186][ T253] netlink_unicast+0x449/0x710 [ 2069.047186][ T253] netlink_sendmsg+0x723/0xbe0 [ 2069.047186][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2069.047186][ T253] ___sys_sendmsg+0xee/0x170 [ 2069.047186][ T253] __sys_sendmsg+0xcd/0x170 [ 2069.047186][ T253] do_syscall_64+0xc6/0x1e0 [ 2069.047186][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2069.047186][ T253] [ 2069.049434][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2069.049434][ T253] netdev_get_by_index+0x5e/0x80 [ 2069.049434][ T253] fib6_nh_init+0x3d8/0x1580 [ 2069.049434][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2069.049434][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2069.049434][ T253] ipv6_add_addr+0x411/0x2000 [ 2069.049434][ T253] inet6_addr_add+0x30e/0xa40 [ 2069.049434][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2069.049434][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2069.049434][ T253] netlink_rcv_skb+0x130/0x360 [ 2069.049434][ T253] netlink_unicast+0x449/0x710 [ 2069.049434][ T253] netlink_sendmsg+0x723/0xbe0 [ 2069.049434][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2069.049434][ T253] ___sys_sendmsg+0xee/0x170 [ 2069.049434][ T253] __sys_sendmsg+0xcd/0x170 [ 2069.049434][ T253] do_syscall_64+0xc6/0x1e0 [ 2069.049434][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2069.049434][ T253] [ 2069.051700][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2069.051700][ T253] netdev_get_by_index+0x5e/0x80 [ 2069.051700][ T253] fib6_nh_init+0x3d8/0x1580 [ 2069.051700][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2069.051700][ T253] ip6_route_add+0x1c/0x140 [ 2069.051700][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2069.051700][ T253] addrconf_add_dev+0xe2/0x170 [ 2069.051700][ T253] inet6_addr_add+0x12f/0xa40 [ 2069.051700][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2069.051700][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2069.051700][ T253] netlink_rcv_skb+0x130/0x360 [ 2069.051700][ T253] netlink_unicast+0x449/0x710 [ 2069.051700][ T253] netlink_sendmsg+0x723/0xbe0 [ 2069.051700][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2069.051700][ T253] ___sys_sendmsg+0xee/0x170 [ 2069.051700][ T253] __sys_sendmsg+0xcd/0x170 [ 2069.051700][ T253] do_syscall_64+0xc6/0x1e0 [ 2069.051700][ T253] [ 2069.053915][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2069.053915][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2069.053915][ T253] ipv6_find_idev+0x102/0x170 [ 2069.053915][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2069.053915][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2069.053915][ T253] netlink_rcv_skb+0x130/0x360 [ 2069.053915][ T253] netlink_unicast+0x449/0x710 [ 2069.053915][ T253] netlink_sendmsg+0x723/0xbe0 [ 2069.053915][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2069.053915][ T253] ___sys_sendmsg+0xee/0x170 [ 2069.053915][ T253] __sys_sendmsg+0xcd/0x170 [ 2069.053915][ T253] do_syscall_64+0xc6/0x1e0 [ 2069.053915][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2069.053915][ T253] [ 2069.055664][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2069.055664][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2069.055664][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2069.055664][ T253] ipv6_find_idev+0x102/0x170 [ 2069.055664][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2069.055664][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2069.055664][ T253] netlink_rcv_skb+0x130/0x360 [ 2069.055664][ T253] netlink_unicast+0x449/0x710 [ 2069.055664][ T253] netlink_sendmsg+0x723/0xbe0 [ 2069.055664][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2069.055664][ T253] ___sys_sendmsg+0xee/0x170 [ 2069.055664][ T253] __sys_sendmsg+0xcd/0x170 [ 2069.055664][ T253] do_syscall_64+0xc6/0x1e0 [ 2069.055664][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2069.055664][ T253] [ 2079.298317][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2079.298798][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2079.298798][ T253] dst_init+0x84/0x4a0 [ 2079.298798][ T253] dst_alloc+0x97/0x150 [ 2079.298798][ T253] ip6_dst_alloc+0x23/0x90 [ 2079.298798][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2079.298798][ T253] ip6_pol_route+0x56f/0x840 [ 2079.298798][ T253] fib6_rule_lookup+0x334/0x630 [ 2079.298798][ T253] ip6_route_output_flags+0x259/0x480 [ 2079.298798][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2079.298798][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2079.298798][ T253] netlink_rcv_skb+0x130/0x360 [ 2079.298798][ T253] netlink_unicast+0x449/0x710 [ 2079.298798][ T253] netlink_sendmsg+0x723/0xbe0 [ 2079.298798][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2079.298798][ T253] ___sys_sendmsg+0xee/0x170 [ 2079.298798][ T253] __sys_sendmsg+0xcd/0x170 [ 2079.298798][ T253] do_syscall_64+0xc6/0x1e0 [ 2079.298798][ T253] [ 2079.301162][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2079.301162][ T253] netdev_get_by_index+0x5e/0x80 [ 2079.301162][ T253] fib6_nh_init+0x3d8/0x1580 [ 2079.301162][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2079.301162][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2079.301162][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2079.301162][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2079.301162][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2079.301162][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2079.301162][ T253] addrconf_dad_begin+0x310/0x670 [ 2079.301162][ T253] addrconf_dad_work+0x10b/0xab0 [ 2079.301162][ T253] process_one_work+0x84d/0x18a0 [ 2079.301162][ T253] worker_thread+0x587/0xd30 [ 2079.301162][ T253] kthread+0x28a/0x350 [ 2079.301162][ T253] ret_from_fork+0x31/0x70 [ 2079.301162][ T253] ret_from_fork_asm+0x1a/0x30 [ 2079.301162][ T253] [ 2079.303324][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2079.303324][ T253] netdev_get_by_index+0x5e/0x80 [ 2079.303324][ T253] fib6_nh_init+0x3d8/0x1580 [ 2079.303324][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2079.303324][ T253] ip6_route_add+0x1c/0x140 [ 2079.303324][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2079.303324][ T253] inet6_addr_add+0x4f8/0xa40 [ 2079.303324][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2079.303324][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2079.303324][ T253] netlink_rcv_skb+0x130/0x360 [ 2079.303324][ T253] netlink_unicast+0x449/0x710 [ 2079.303324][ T253] netlink_sendmsg+0x723/0xbe0 [ 2079.303324][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2079.303324][ T253] ___sys_sendmsg+0xee/0x170 [ 2079.303324][ T253] __sys_sendmsg+0xcd/0x170 [ 2079.303324][ T253] do_syscall_64+0xc6/0x1e0 [ 2079.303324][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2079.303324][ T253] [ 2079.305603][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2079.305603][ T253] netdev_get_by_index+0x5e/0x80 [ 2079.305603][ T253] fib6_nh_init+0x3d8/0x1580 [ 2079.305603][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2079.305603][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2079.305603][ T253] ipv6_add_addr+0x411/0x2000 [ 2079.305603][ T253] inet6_addr_add+0x30e/0xa40 [ 2079.305603][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2079.305603][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2079.305603][ T253] netlink_rcv_skb+0x130/0x360 [ 2079.305603][ T253] netlink_unicast+0x449/0x710 [ 2079.305603][ T253] netlink_sendmsg+0x723/0xbe0 [ 2079.305603][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2079.305603][ T253] ___sys_sendmsg+0xee/0x170 [ 2079.305603][ T253] __sys_sendmsg+0xcd/0x170 [ 2079.305603][ T253] do_syscall_64+0xc6/0x1e0 [ 2079.305603][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2079.305603][ T253] [ 2079.307873][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2079.307873][ T253] netdev_get_by_index+0x5e/0x80 [ 2079.307873][ T253] fib6_nh_init+0x3d8/0x1580 [ 2079.307873][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2079.307873][ T253] ip6_route_add+0x1c/0x140 [ 2079.307873][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2079.307873][ T253] addrconf_add_dev+0xe2/0x170 [ 2079.307873][ T253] inet6_addr_add+0x12f/0xa40 [ 2079.307873][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2079.307873][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2079.307873][ T253] netlink_rcv_skb+0x130/0x360 [ 2079.307873][ T253] netlink_unicast+0x449/0x710 [ 2079.307873][ T253] netlink_sendmsg+0x723/0xbe0 [ 2079.307873][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2079.307873][ T253] ___sys_sendmsg+0xee/0x170 [ 2079.307873][ T253] __sys_sendmsg+0xcd/0x170 [ 2079.307873][ T253] do_syscall_64+0xc6/0x1e0 [ 2079.307873][ T253] [ 2079.310109][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2079.310109][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2079.310109][ T253] ipv6_find_idev+0x102/0x170 [ 2079.310109][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2079.310109][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2079.310109][ T253] netlink_rcv_skb+0x130/0x360 [ 2079.310109][ T253] netlink_unicast+0x449/0x710 [ 2079.310109][ T253] netlink_sendmsg+0x723/0xbe0 [ 2079.310109][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2079.310109][ T253] ___sys_sendmsg+0xee/0x170 [ 2079.310109][ T253] __sys_sendmsg+0xcd/0x170 [ 2079.310109][ T253] do_syscall_64+0xc6/0x1e0 [ 2079.310109][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2079.310109][ T253] [ 2079.311852][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2079.311852][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2079.311852][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2079.311852][ T253] ipv6_find_idev+0x102/0x170 [ 2079.311852][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2079.311852][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2079.311852][ T253] netlink_rcv_skb+0x130/0x360 [ 2079.311852][ T253] netlink_unicast+0x449/0x710 [ 2079.311852][ T253] netlink_sendmsg+0x723/0xbe0 [ 2079.311852][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2079.311852][ T253] ___sys_sendmsg+0xee/0x170 [ 2079.311852][ T253] __sys_sendmsg+0xcd/0x170 [ 2079.311852][ T253] do_syscall_64+0xc6/0x1e0 [ 2079.311852][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2079.311852][ T253] [ 2089.554317][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2089.554789][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2089.554789][ T253] dst_init+0x84/0x4a0 [ 2089.554789][ T253] dst_alloc+0x97/0x150 [ 2089.554789][ T253] ip6_dst_alloc+0x23/0x90 [ 2089.554789][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2089.554789][ T253] ip6_pol_route+0x56f/0x840 [ 2089.554789][ T253] fib6_rule_lookup+0x334/0x630 [ 2089.554789][ T253] ip6_route_output_flags+0x259/0x480 [ 2089.554789][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2089.554789][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2089.554789][ T253] netlink_rcv_skb+0x130/0x360 [ 2089.554789][ T253] netlink_unicast+0x449/0x710 [ 2089.554789][ T253] netlink_sendmsg+0x723/0xbe0 [ 2089.554789][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2089.554789][ T253] ___sys_sendmsg+0xee/0x170 [ 2089.554789][ T253] __sys_sendmsg+0xcd/0x170 [ 2089.554789][ T253] do_syscall_64+0xc6/0x1e0 [ 2089.554789][ T253] [ 2089.557015][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2089.557015][ T253] netdev_get_by_index+0x5e/0x80 [ 2089.557015][ T253] fib6_nh_init+0x3d8/0x1580 [ 2089.557015][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2089.557015][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2089.557015][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2089.557015][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2089.557015][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2089.557015][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2089.557015][ T253] addrconf_dad_begin+0x310/0x670 [ 2089.557015][ T253] addrconf_dad_work+0x10b/0xab0 [ 2089.557015][ T253] process_one_work+0x84d/0x18a0 [ 2089.557015][ T253] worker_thread+0x587/0xd30 [ 2089.557015][ T253] kthread+0x28a/0x350 [ 2089.557015][ T253] ret_from_fork+0x31/0x70 [ 2089.557015][ T253] ret_from_fork_asm+0x1a/0x30 [ 2089.557015][ T253] [ 2089.559185][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2089.559185][ T253] netdev_get_by_index+0x5e/0x80 [ 2089.559185][ T253] fib6_nh_init+0x3d8/0x1580 [ 2089.559185][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2089.559185][ T253] ip6_route_add+0x1c/0x140 [ 2089.559185][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2089.559185][ T253] inet6_addr_add+0x4f8/0xa40 [ 2089.559185][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2089.559185][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2089.559185][ T253] netlink_rcv_skb+0x130/0x360 [ 2089.559185][ T253] netlink_unicast+0x449/0x710 [ 2089.559185][ T253] netlink_sendmsg+0x723/0xbe0 [ 2089.559185][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2089.559185][ T253] ___sys_sendmsg+0xee/0x170 [ 2089.559185][ T253] __sys_sendmsg+0xcd/0x170 [ 2089.559185][ T253] do_syscall_64+0xc6/0x1e0 [ 2089.559185][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2089.559185][ T253] [ 2089.561468][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2089.561468][ T253] netdev_get_by_index+0x5e/0x80 [ 2089.561468][ T253] fib6_nh_init+0x3d8/0x1580 [ 2089.561468][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2089.561468][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2089.561468][ T253] ipv6_add_addr+0x411/0x2000 [ 2089.561468][ T253] inet6_addr_add+0x30e/0xa40 [ 2089.561468][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2089.561468][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2089.561468][ T253] netlink_rcv_skb+0x130/0x360 [ 2089.561468][ T253] netlink_unicast+0x449/0x710 [ 2089.561468][ T253] netlink_sendmsg+0x723/0xbe0 [ 2089.561468][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2089.561468][ T253] ___sys_sendmsg+0xee/0x170 [ 2089.561468][ T253] __sys_sendmsg+0xcd/0x170 [ 2089.561468][ T253] do_syscall_64+0xc6/0x1e0 [ 2089.561468][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2089.561468][ T253] [ 2089.563741][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2089.563741][ T253] netdev_get_by_index+0x5e/0x80 [ 2089.563741][ T253] fib6_nh_init+0x3d8/0x1580 [ 2089.563741][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2089.563741][ T253] ip6_route_add+0x1c/0x140 [ 2089.563741][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2089.563741][ T253] addrconf_add_dev+0xe2/0x170 [ 2089.563741][ T253] inet6_addr_add+0x12f/0xa40 [ 2089.563741][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2089.563741][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2089.563741][ T253] netlink_rcv_skb+0x130/0x360 [ 2089.563741][ T253] netlink_unicast+0x449/0x710 [ 2089.563741][ T253] netlink_sendmsg+0x723/0xbe0 [ 2089.563741][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2089.563741][ T253] ___sys_sendmsg+0xee/0x170 [ 2089.563741][ T253] __sys_sendmsg+0xcd/0x170 [ 2089.563741][ T253] do_syscall_64+0xc6/0x1e0 [ 2089.563741][ T253] [ 2089.565961][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2089.565961][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2089.565961][ T253] ipv6_find_idev+0x102/0x170 [ 2089.565961][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2089.565961][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2089.565961][ T253] netlink_rcv_skb+0x130/0x360 [ 2089.565961][ T253] netlink_unicast+0x449/0x710 [ 2089.565961][ T253] netlink_sendmsg+0x723/0xbe0 [ 2089.565961][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2089.565961][ T253] ___sys_sendmsg+0xee/0x170 [ 2089.565961][ T253] __sys_sendmsg+0xcd/0x170 [ 2089.565961][ T253] do_syscall_64+0xc6/0x1e0 [ 2089.565961][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2089.565961][ T253] [ 2089.567701][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2089.567701][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2089.567701][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2089.567701][ T253] ipv6_find_idev+0x102/0x170 [ 2089.567701][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2089.567701][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2089.567701][ T253] netlink_rcv_skb+0x130/0x360 [ 2089.567701][ T253] netlink_unicast+0x449/0x710 [ 2089.567701][ T253] netlink_sendmsg+0x723/0xbe0 [ 2089.567701][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2089.567701][ T253] ___sys_sendmsg+0xee/0x170 [ 2089.567701][ T253] __sys_sendmsg+0xcd/0x170 [ 2089.567701][ T253] do_syscall_64+0xc6/0x1e0 [ 2089.567701][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2089.567701][ T253] [ 2099.810324][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2099.810807][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2099.810807][ T253] dst_init+0x84/0x4a0 [ 2099.810807][ T253] dst_alloc+0x97/0x150 [ 2099.810807][ T253] ip6_dst_alloc+0x23/0x90 [ 2099.810807][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2099.810807][ T253] ip6_pol_route+0x56f/0x840 [ 2099.810807][ T253] fib6_rule_lookup+0x334/0x630 [ 2099.810807][ T253] ip6_route_output_flags+0x259/0x480 [ 2099.810807][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2099.810807][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2099.810807][ T253] netlink_rcv_skb+0x130/0x360 [ 2099.810807][ T253] netlink_unicast+0x449/0x710 [ 2099.810807][ T253] netlink_sendmsg+0x723/0xbe0 [ 2099.810807][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2099.810807][ T253] ___sys_sendmsg+0xee/0x170 [ 2099.810807][ T253] __sys_sendmsg+0xcd/0x170 [ 2099.810807][ T253] do_syscall_64+0xc6/0x1e0 [ 2099.810807][ T253] [ 2099.813016][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2099.813016][ T253] netdev_get_by_index+0x5e/0x80 [ 2099.813016][ T253] fib6_nh_init+0x3d8/0x1580 [ 2099.813016][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2099.813016][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2099.813016][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2099.813016][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2099.813016][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2099.813016][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2099.813016][ T253] addrconf_dad_begin+0x310/0x670 [ 2099.813016][ T253] addrconf_dad_work+0x10b/0xab0 [ 2099.813016][ T253] process_one_work+0x84d/0x18a0 [ 2099.813016][ T253] worker_thread+0x587/0xd30 [ 2099.813016][ T253] kthread+0x28a/0x350 [ 2099.813016][ T253] ret_from_fork+0x31/0x70 [ 2099.813016][ T253] ret_from_fork_asm+0x1a/0x30 [ 2099.813016][ T253] [ 2099.815177][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2099.815177][ T253] netdev_get_by_index+0x5e/0x80 [ 2099.815177][ T253] fib6_nh_init+0x3d8/0x1580 [ 2099.815177][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2099.815177][ T253] ip6_route_add+0x1c/0x140 [ 2099.815177][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2099.815177][ T253] inet6_addr_add+0x4f8/0xa40 [ 2099.815177][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2099.815177][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.815177][ T253] netlink_rcv_skb+0x130/0x360 [ 2099.815177][ T253] netlink_unicast+0x449/0x710 [ 2099.815177][ T253] netlink_sendmsg+0x723/0xbe0 [ 2099.815177][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2099.815177][ T253] ___sys_sendmsg+0xee/0x170 [ 2099.815177][ T253] __sys_sendmsg+0xcd/0x170 [ 2099.815177][ T253] do_syscall_64+0xc6/0x1e0 [ 2099.815177][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.815177][ T253] [ 2099.817454][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2099.817454][ T253] netdev_get_by_index+0x5e/0x80 [ 2099.817454][ T253] fib6_nh_init+0x3d8/0x1580 [ 2099.817454][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2099.817454][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2099.817454][ T253] ipv6_add_addr+0x411/0x2000 [ 2099.817454][ T253] inet6_addr_add+0x30e/0xa40 [ 2099.817454][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2099.817454][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.817454][ T253] netlink_rcv_skb+0x130/0x360 [ 2099.817454][ T253] netlink_unicast+0x449/0x710 [ 2099.817454][ T253] netlink_sendmsg+0x723/0xbe0 [ 2099.817454][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2099.817454][ T253] ___sys_sendmsg+0xee/0x170 [ 2099.817454][ T253] __sys_sendmsg+0xcd/0x170 [ 2099.817454][ T253] do_syscall_64+0xc6/0x1e0 [ 2099.817454][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.817454][ T253] [ 2099.819835][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2099.819835][ T253] netdev_get_by_index+0x5e/0x80 [ 2099.819835][ T253] fib6_nh_init+0x3d8/0x1580 [ 2099.819835][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2099.819835][ T253] ip6_route_add+0x1c/0x140 [ 2099.819835][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2099.819835][ T253] addrconf_add_dev+0xe2/0x170 [ 2099.819835][ T253] inet6_addr_add+0x12f/0xa40 [ 2099.819835][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2099.819835][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.819835][ T253] netlink_rcv_skb+0x130/0x360 [ 2099.819835][ T253] netlink_unicast+0x449/0x710 [ 2099.819835][ T253] netlink_sendmsg+0x723/0xbe0 [ 2099.819835][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2099.819835][ T253] ___sys_sendmsg+0xee/0x170 [ 2099.819835][ T253] __sys_sendmsg+0xcd/0x170 [ 2099.819835][ T253] do_syscall_64+0xc6/0x1e0 [ 2099.819835][ T253] [ 2099.822054][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2099.822054][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2099.822054][ T253] ipv6_find_idev+0x102/0x170 [ 2099.822054][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2099.822054][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.822054][ T253] netlink_rcv_skb+0x130/0x360 [ 2099.822054][ T253] netlink_unicast+0x449/0x710 [ 2099.822054][ T253] netlink_sendmsg+0x723/0xbe0 [ 2099.822054][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2099.822054][ T253] ___sys_sendmsg+0xee/0x170 [ 2099.822054][ T253] __sys_sendmsg+0xcd/0x170 [ 2099.822054][ T253] do_syscall_64+0xc6/0x1e0 [ 2099.822054][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.822054][ T253] [ 2099.823793][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2099.823793][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2099.823793][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2099.823793][ T253] ipv6_find_idev+0x102/0x170 [ 2099.823793][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2099.823793][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.823793][ T253] netlink_rcv_skb+0x130/0x360 [ 2099.823793][ T253] netlink_unicast+0x449/0x710 [ 2099.823793][ T253] netlink_sendmsg+0x723/0xbe0 [ 2099.823793][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2099.823793][ T253] ___sys_sendmsg+0xee/0x170 [ 2099.823793][ T253] __sys_sendmsg+0xcd/0x170 [ 2099.823793][ T253] do_syscall_64+0xc6/0x1e0 [ 2099.823793][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.823793][ T253] [ 2110.066345][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2110.066828][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2110.066828][ T253] dst_init+0x84/0x4a0 [ 2110.066828][ T253] dst_alloc+0x97/0x150 [ 2110.066828][ T253] ip6_dst_alloc+0x23/0x90 [ 2110.066828][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2110.066828][ T253] ip6_pol_route+0x56f/0x840 [ 2110.066828][ T253] fib6_rule_lookup+0x334/0x630 [ 2110.066828][ T253] ip6_route_output_flags+0x259/0x480 [ 2110.066828][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2110.066828][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2110.066828][ T253] netlink_rcv_skb+0x130/0x360 [ 2110.066828][ T253] netlink_unicast+0x449/0x710 [ 2110.066828][ T253] netlink_sendmsg+0x723/0xbe0 [ 2110.066828][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2110.066828][ T253] ___sys_sendmsg+0xee/0x170 [ 2110.066828][ T253] __sys_sendmsg+0xcd/0x170 [ 2110.066828][ T253] do_syscall_64+0xc6/0x1e0 [ 2110.066828][ T253] [ 2110.068999][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2110.068999][ T253] netdev_get_by_index+0x5e/0x80 [ 2110.068999][ T253] fib6_nh_init+0x3d8/0x1580 [ 2110.068999][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2110.068999][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2110.068999][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2110.068999][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2110.068999][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2110.068999][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2110.068999][ T253] addrconf_dad_begin+0x310/0x670 [ 2110.068999][ T253] addrconf_dad_work+0x10b/0xab0 [ 2110.068999][ T253] process_one_work+0x84d/0x18a0 [ 2110.068999][ T253] worker_thread+0x587/0xd30 [ 2110.068999][ T253] kthread+0x28a/0x350 [ 2110.068999][ T253] ret_from_fork+0x31/0x70 [ 2110.068999][ T253] ret_from_fork_asm+0x1a/0x30 [ 2110.068999][ T253] [ 2110.071304][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2110.071304][ T253] netdev_get_by_index+0x5e/0x80 [ 2110.071304][ T253] fib6_nh_init+0x3d8/0x1580 [ 2110.071304][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2110.071304][ T253] ip6_route_add+0x1c/0x140 [ 2110.071304][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2110.071304][ T253] inet6_addr_add+0x4f8/0xa40 [ 2110.071304][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2110.071304][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2110.071304][ T253] netlink_rcv_skb+0x130/0x360 [ 2110.071304][ T253] netlink_unicast+0x449/0x710 [ 2110.071304][ T253] netlink_sendmsg+0x723/0xbe0 [ 2110.071304][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2110.071304][ T253] ___sys_sendmsg+0xee/0x170 [ 2110.071304][ T253] __sys_sendmsg+0xcd/0x170 [ 2110.071304][ T253] do_syscall_64+0xc6/0x1e0 [ 2110.071304][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2110.071304][ T253] [ 2110.073589][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2110.073589][ T253] netdev_get_by_index+0x5e/0x80 [ 2110.073589][ T253] fib6_nh_init+0x3d8/0x1580 [ 2110.073589][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2110.073589][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2110.073589][ T253] ipv6_add_addr+0x411/0x2000 [ 2110.073589][ T253] inet6_addr_add+0x30e/0xa40 [ 2110.073589][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2110.073589][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2110.073589][ T253] netlink_rcv_skb+0x130/0x360 [ 2110.073589][ T253] netlink_unicast+0x449/0x710 [ 2110.073589][ T253] netlink_sendmsg+0x723/0xbe0 [ 2110.073589][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2110.073589][ T253] ___sys_sendmsg+0xee/0x170 [ 2110.073589][ T253] __sys_sendmsg+0xcd/0x170 [ 2110.073589][ T253] do_syscall_64+0xc6/0x1e0 [ 2110.073589][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2110.073589][ T253] [ 2110.075857][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2110.075857][ T253] netdev_get_by_index+0x5e/0x80 [ 2110.075857][ T253] fib6_nh_init+0x3d8/0x1580 [ 2110.075857][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2110.075857][ T253] ip6_route_add+0x1c/0x140 [ 2110.075857][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2110.075857][ T253] addrconf_add_dev+0xe2/0x170 [ 2110.075857][ T253] inet6_addr_add+0x12f/0xa40 [ 2110.075857][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2110.075857][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2110.075857][ T253] netlink_rcv_skb+0x130/0x360 [ 2110.075857][ T253] netlink_unicast+0x449/0x710 [ 2110.075857][ T253] netlink_sendmsg+0x723/0xbe0 [ 2110.075857][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2110.075857][ T253] ___sys_sendmsg+0xee/0x170 [ 2110.075857][ T253] __sys_sendmsg+0xcd/0x170 [ 2110.075857][ T253] do_syscall_64+0xc6/0x1e0 [ 2110.075857][ T253] [ 2110.078081][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2110.078081][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2110.078081][ T253] ipv6_find_idev+0x102/0x170 [ 2110.078081][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2110.078081][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2110.078081][ T253] netlink_rcv_skb+0x130/0x360 [ 2110.078081][ T253] netlink_unicast+0x449/0x710 [ 2110.078081][ T253] netlink_sendmsg+0x723/0xbe0 [ 2110.078081][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2110.078081][ T253] ___sys_sendmsg+0xee/0x170 [ 2110.078081][ T253] __sys_sendmsg+0xcd/0x170 [ 2110.078081][ T253] do_syscall_64+0xc6/0x1e0 [ 2110.078081][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2110.078081][ T253] [ 2110.079824][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2110.079824][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2110.079824][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2110.079824][ T253] ipv6_find_idev+0x102/0x170 [ 2110.079824][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2110.079824][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2110.079824][ T253] netlink_rcv_skb+0x130/0x360 [ 2110.079824][ T253] netlink_unicast+0x449/0x710 [ 2110.079824][ T253] netlink_sendmsg+0x723/0xbe0 [ 2110.079824][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2110.079824][ T253] ___sys_sendmsg+0xee/0x170 [ 2110.079824][ T253] __sys_sendmsg+0xcd/0x170 [ 2110.079824][ T253] do_syscall_64+0xc6/0x1e0 [ 2110.079824][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2110.079824][ T253] [ 2120.274241][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2120.274973][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2120.274973][ T253] dst_init+0x84/0x4a0 [ 2120.274973][ T253] dst_alloc+0x97/0x150 [ 2120.274973][ T253] ip6_dst_alloc+0x23/0x90 [ 2120.274973][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2120.274973][ T253] ip6_pol_route+0x56f/0x840 [ 2120.274973][ T253] fib6_rule_lookup+0x334/0x630 [ 2120.274973][ T253] ip6_route_output_flags+0x259/0x480 [ 2120.274973][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2120.274973][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2120.274973][ T253] netlink_rcv_skb+0x130/0x360 [ 2120.274973][ T253] netlink_unicast+0x449/0x710 [ 2120.274973][ T253] netlink_sendmsg+0x723/0xbe0 [ 2120.274973][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2120.274973][ T253] ___sys_sendmsg+0xee/0x170 [ 2120.274973][ T253] __sys_sendmsg+0xcd/0x170 [ 2120.274973][ T253] do_syscall_64+0xc6/0x1e0 [ 2120.274973][ T253] [ 2120.278489][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2120.278489][ T253] netdev_get_by_index+0x5e/0x80 [ 2120.278489][ T253] fib6_nh_init+0x3d8/0x1580 [ 2120.278489][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2120.278489][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2120.278489][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2120.278489][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2120.278489][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2120.278489][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2120.278489][ T253] addrconf_dad_begin+0x310/0x670 [ 2120.278489][ T253] addrconf_dad_work+0x10b/0xab0 [ 2120.278489][ T253] process_one_work+0x84d/0x18a0 [ 2120.278489][ T253] worker_thread+0x587/0xd30 [ 2120.278489][ T253] kthread+0x28a/0x350 [ 2120.278489][ T253] ret_from_fork+0x31/0x70 [ 2120.278489][ T253] ret_from_fork_asm+0x1a/0x30 [ 2120.278489][ T253] [ 2120.281933][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2120.281933][ T253] netdev_get_by_index+0x5e/0x80 [ 2120.281933][ T253] fib6_nh_init+0x3d8/0x1580 [ 2120.281933][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2120.281933][ T253] ip6_route_add+0x1c/0x140 [ 2120.281933][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2120.281933][ T253] inet6_addr_add+0x4f8/0xa40 [ 2120.281933][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2120.281933][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2120.281933][ T253] netlink_rcv_skb+0x130/0x360 [ 2120.281933][ T253] netlink_unicast+0x449/0x710 [ 2120.281933][ T253] netlink_sendmsg+0x723/0xbe0 [ 2120.281933][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2120.281933][ T253] ___sys_sendmsg+0xee/0x170 [ 2120.281933][ T253] __sys_sendmsg+0xcd/0x170 [ 2120.281933][ T253] do_syscall_64+0xc6/0x1e0 [ 2120.281933][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2120.281933][ T253] [ 2120.285527][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2120.285527][ T253] netdev_get_by_index+0x5e/0x80 [ 2120.285527][ T253] fib6_nh_init+0x3d8/0x1580 [ 2120.285527][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2120.285527][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2120.285527][ T253] ipv6_add_addr+0x411/0x2000 [ 2120.285527][ T253] inet6_addr_add+0x30e/0xa40 [ 2120.285527][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2120.285527][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2120.285527][ T253] netlink_rcv_skb+0x130/0x360 [ 2120.285527][ T253] netlink_unicast+0x449/0x710 [ 2120.285527][ T253] netlink_sendmsg+0x723/0xbe0 [ 2120.285527][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2120.285527][ T253] ___sys_sendmsg+0xee/0x170 [ 2120.285527][ T253] __sys_sendmsg+0xcd/0x170 [ 2120.285527][ T253] do_syscall_64+0xc6/0x1e0 [ 2120.285527][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2120.285527][ T253] [ 2120.289111][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2120.289111][ T253] netdev_get_by_index+0x5e/0x80 [ 2120.289111][ T253] fib6_nh_init+0x3d8/0x1580 [ 2120.289111][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2120.289111][ T253] ip6_route_add+0x1c/0x140 [ 2120.289111][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2120.289111][ T253] addrconf_add_dev+0xe2/0x170 [ 2120.289111][ T253] inet6_addr_add+0x12f/0xa40 [ 2120.289111][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2120.289111][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2120.289111][ T253] netlink_rcv_skb+0x130/0x360 [ 2120.289111][ T253] netlink_unicast+0x449/0x710 [ 2120.289111][ T253] netlink_sendmsg+0x723/0xbe0 [ 2120.289111][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2120.289111][ T253] ___sys_sendmsg+0xee/0x170 [ 2120.289111][ T253] __sys_sendmsg+0xcd/0x170 [ 2120.289111][ T253] do_syscall_64+0xc6/0x1e0 [ 2120.289111][ T253] [ 2120.292643][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2120.292643][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2120.292643][ T253] ipv6_find_idev+0x102/0x170 [ 2120.292643][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2120.292643][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2120.292643][ T253] netlink_rcv_skb+0x130/0x360 [ 2120.292643][ T253] netlink_unicast+0x449/0x710 [ 2120.292643][ T253] netlink_sendmsg+0x723/0xbe0 [ 2120.292643][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2120.292643][ T253] ___sys_sendmsg+0xee/0x170 [ 2120.292643][ T253] __sys_sendmsg+0xcd/0x170 [ 2120.292643][ T253] do_syscall_64+0xc6/0x1e0 [ 2120.292643][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2120.292643][ T253] [ 2120.295408][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2120.295408][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2120.295408][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2120.295408][ T253] ipv6_find_idev+0x102/0x170 [ 2120.295408][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2120.295408][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2120.295408][ T253] netlink_rcv_skb+0x130/0x360 [ 2120.295408][ T253] netlink_unicast+0x449/0x710 [ 2120.295408][ T253] netlink_sendmsg+0x723/0xbe0 [ 2120.295408][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2120.295408][ T253] ___sys_sendmsg+0xee/0x170 [ 2120.295408][ T253] __sys_sendmsg+0xcd/0x170 [ 2120.295408][ T253] do_syscall_64+0xc6/0x1e0 [ 2120.295408][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2120.295408][ T253] [ 2130.538299][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2130.538795][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2130.538795][ T253] dst_init+0x84/0x4a0 [ 2130.538795][ T253] dst_alloc+0x97/0x150 [ 2130.538795][ T253] ip6_dst_alloc+0x23/0x90 [ 2130.538795][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2130.538795][ T253] ip6_pol_route+0x56f/0x840 [ 2130.538795][ T253] fib6_rule_lookup+0x334/0x630 [ 2130.538795][ T253] ip6_route_output_flags+0x259/0x480 [ 2130.538795][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2130.538795][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2130.538795][ T253] netlink_rcv_skb+0x130/0x360 [ 2130.538795][ T253] netlink_unicast+0x449/0x710 [ 2130.538795][ T253] netlink_sendmsg+0x723/0xbe0 [ 2130.538795][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2130.538795][ T253] ___sys_sendmsg+0xee/0x170 [ 2130.538795][ T253] __sys_sendmsg+0xcd/0x170 [ 2130.538795][ T253] do_syscall_64+0xc6/0x1e0 [ 2130.538795][ T253] [ 2130.541033][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2130.541033][ T253] netdev_get_by_index+0x5e/0x80 [ 2130.541033][ T253] fib6_nh_init+0x3d8/0x1580 [ 2130.541033][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2130.541033][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2130.541033][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2130.541033][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2130.541033][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2130.541033][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2130.541033][ T253] addrconf_dad_begin+0x310/0x670 [ 2130.541033][ T253] addrconf_dad_work+0x10b/0xab0 [ 2130.541033][ T253] process_one_work+0x84d/0x18a0 [ 2130.541033][ T253] worker_thread+0x587/0xd30 [ 2130.541033][ T253] kthread+0x28a/0x350 [ 2130.541033][ T253] ret_from_fork+0x31/0x70 [ 2130.541033][ T253] ret_from_fork_asm+0x1a/0x30 [ 2130.541033][ T253] [ 2130.543169][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2130.543169][ T253] netdev_get_by_index+0x5e/0x80 [ 2130.543169][ T253] fib6_nh_init+0x3d8/0x1580 [ 2130.543169][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2130.543169][ T253] ip6_route_add+0x1c/0x140 [ 2130.543169][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2130.543169][ T253] inet6_addr_add+0x4f8/0xa40 [ 2130.543169][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2130.543169][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2130.543169][ T253] netlink_rcv_skb+0x130/0x360 [ 2130.543169][ T253] netlink_unicast+0x449/0x710 [ 2130.543169][ T253] netlink_sendmsg+0x723/0xbe0 [ 2130.543169][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2130.543169][ T253] ___sys_sendmsg+0xee/0x170 [ 2130.543169][ T253] __sys_sendmsg+0xcd/0x170 [ 2130.543169][ T253] do_syscall_64+0xc6/0x1e0 [ 2130.543169][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2130.543169][ T253] [ 2130.545377][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2130.545377][ T253] netdev_get_by_index+0x5e/0x80 [ 2130.545377][ T253] fib6_nh_init+0x3d8/0x1580 [ 2130.545377][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2130.545377][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2130.545377][ T253] ipv6_add_addr+0x411/0x2000 [ 2130.545377][ T253] inet6_addr_add+0x30e/0xa40 [ 2130.545377][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2130.545377][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2130.545377][ T253] netlink_rcv_skb+0x130/0x360 [ 2130.545377][ T253] netlink_unicast+0x449/0x710 [ 2130.545377][ T253] netlink_sendmsg+0x723/0xbe0 [ 2130.545377][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2130.545377][ T253] ___sys_sendmsg+0xee/0x170 [ 2130.545377][ T253] __sys_sendmsg+0xcd/0x170 [ 2130.545377][ T253] do_syscall_64+0xc6/0x1e0 [ 2130.545377][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2130.545377][ T253] [ 2130.547582][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2130.547582][ T253] netdev_get_by_index+0x5e/0x80 [ 2130.547582][ T253] fib6_nh_init+0x3d8/0x1580 [ 2130.547582][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2130.547582][ T253] ip6_route_add+0x1c/0x140 [ 2130.547582][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2130.547582][ T253] addrconf_add_dev+0xe2/0x170 [ 2130.547582][ T253] inet6_addr_add+0x12f/0xa40 [ 2130.547582][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2130.547582][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2130.547582][ T253] netlink_rcv_skb+0x130/0x360 [ 2130.547582][ T253] netlink_unicast+0x449/0x710 [ 2130.547582][ T253] netlink_sendmsg+0x723/0xbe0 [ 2130.547582][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2130.547582][ T253] ___sys_sendmsg+0xee/0x170 [ 2130.547582][ T253] __sys_sendmsg+0xcd/0x170 [ 2130.547582][ T253] do_syscall_64+0xc6/0x1e0 [ 2130.547582][ T253] [ 2130.549791][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2130.549791][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2130.549791][ T253] ipv6_find_idev+0x102/0x170 [ 2130.549791][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2130.549791][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2130.549791][ T253] netlink_rcv_skb+0x130/0x360 [ 2130.549791][ T253] netlink_unicast+0x449/0x710 [ 2130.549791][ T253] netlink_sendmsg+0x723/0xbe0 [ 2130.549791][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2130.549791][ T253] ___sys_sendmsg+0xee/0x170 [ 2130.549791][ T253] __sys_sendmsg+0xcd/0x170 [ 2130.549791][ T253] do_syscall_64+0xc6/0x1e0 [ 2130.549791][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2130.549791][ T253] [ 2130.551542][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2130.551542][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2130.551542][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2130.551542][ T253] ipv6_find_idev+0x102/0x170 [ 2130.551542][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2130.551542][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2130.551542][ T253] netlink_rcv_skb+0x130/0x360 [ 2130.551542][ T253] netlink_unicast+0x449/0x710 [ 2130.551542][ T253] netlink_sendmsg+0x723/0xbe0 [ 2130.551542][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2130.551542][ T253] ___sys_sendmsg+0xee/0x170 [ 2130.551542][ T253] __sys_sendmsg+0xcd/0x170 [ 2130.551542][ T253] do_syscall_64+0xc6/0x1e0 [ 2130.551542][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2130.551542][ T253] [ 2140.730307][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2140.730791][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2140.730791][ T253] dst_init+0x84/0x4a0 [ 2140.730791][ T253] dst_alloc+0x97/0x150 [ 2140.730791][ T253] ip6_dst_alloc+0x23/0x90 [ 2140.730791][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2140.730791][ T253] ip6_pol_route+0x56f/0x840 [ 2140.730791][ T253] fib6_rule_lookup+0x334/0x630 [ 2140.730791][ T253] ip6_route_output_flags+0x259/0x480 [ 2140.730791][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2140.730791][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2140.730791][ T253] netlink_rcv_skb+0x130/0x360 [ 2140.730791][ T253] netlink_unicast+0x449/0x710 [ 2140.730791][ T253] netlink_sendmsg+0x723/0xbe0 [ 2140.730791][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2140.730791][ T253] ___sys_sendmsg+0xee/0x170 [ 2140.730791][ T253] __sys_sendmsg+0xcd/0x170 [ 2140.730791][ T253] do_syscall_64+0xc6/0x1e0 [ 2140.730791][ T253] [ 2140.733007][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2140.733007][ T253] netdev_get_by_index+0x5e/0x80 [ 2140.733007][ T253] fib6_nh_init+0x3d8/0x1580 [ 2140.733007][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2140.733007][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2140.733007][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2140.733007][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2140.733007][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2140.733007][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2140.733007][ T253] addrconf_dad_begin+0x310/0x670 [ 2140.733007][ T253] addrconf_dad_work+0x10b/0xab0 [ 2140.733007][ T253] process_one_work+0x84d/0x18a0 [ 2140.733007][ T253] worker_thread+0x587/0xd30 [ 2140.733007][ T253] kthread+0x28a/0x350 [ 2140.733007][ T253] ret_from_fork+0x31/0x70 [ 2140.733007][ T253] ret_from_fork_asm+0x1a/0x30 [ 2140.733007][ T253] [ 2140.735176][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2140.735176][ T253] netdev_get_by_index+0x5e/0x80 [ 2140.735176][ T253] fib6_nh_init+0x3d8/0x1580 [ 2140.735176][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2140.735176][ T253] ip6_route_add+0x1c/0x140 [ 2140.735176][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2140.735176][ T253] inet6_addr_add+0x4f8/0xa40 [ 2140.735176][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2140.735176][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2140.735176][ T253] netlink_rcv_skb+0x130/0x360 [ 2140.735176][ T253] netlink_unicast+0x449/0x710 [ 2140.735176][ T253] netlink_sendmsg+0x723/0xbe0 [ 2140.735176][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2140.735176][ T253] ___sys_sendmsg+0xee/0x170 [ 2140.735176][ T253] __sys_sendmsg+0xcd/0x170 [ 2140.735176][ T253] do_syscall_64+0xc6/0x1e0 [ 2140.735176][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2140.735176][ T253] [ 2140.737440][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2140.737440][ T253] netdev_get_by_index+0x5e/0x80 [ 2140.737440][ T253] fib6_nh_init+0x3d8/0x1580 [ 2140.737440][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2140.737440][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2140.737440][ T253] ipv6_add_addr+0x411/0x2000 [ 2140.737440][ T253] inet6_addr_add+0x30e/0xa40 [ 2140.737440][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2140.737440][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2140.737440][ T253] netlink_rcv_skb+0x130/0x360 [ 2140.737440][ T253] netlink_unicast+0x449/0x710 [ 2140.737440][ T253] netlink_sendmsg+0x723/0xbe0 [ 2140.737440][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2140.737440][ T253] ___sys_sendmsg+0xee/0x170 [ 2140.737440][ T253] __sys_sendmsg+0xcd/0x170 [ 2140.737440][ T253] do_syscall_64+0xc6/0x1e0 [ 2140.737440][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2140.737440][ T253] [ 2140.739728][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2140.739728][ T253] netdev_get_by_index+0x5e/0x80 [ 2140.739728][ T253] fib6_nh_init+0x3d8/0x1580 [ 2140.739728][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2140.739728][ T253] ip6_route_add+0x1c/0x140 [ 2140.739728][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2140.739728][ T253] addrconf_add_dev+0xe2/0x170 [ 2140.739728][ T253] inet6_addr_add+0x12f/0xa40 [ 2140.739728][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2140.739728][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2140.739728][ T253] netlink_rcv_skb+0x130/0x360 [ 2140.739728][ T253] netlink_unicast+0x449/0x710 [ 2140.739728][ T253] netlink_sendmsg+0x723/0xbe0 [ 2140.739728][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2140.739728][ T253] ___sys_sendmsg+0xee/0x170 [ 2140.739728][ T253] __sys_sendmsg+0xcd/0x170 [ 2140.739728][ T253] do_syscall_64+0xc6/0x1e0 [ 2140.739728][ T253] [ 2140.741960][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2140.741960][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2140.741960][ T253] ipv6_find_idev+0x102/0x170 [ 2140.741960][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2140.741960][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2140.741960][ T253] netlink_rcv_skb+0x130/0x360 [ 2140.741960][ T253] netlink_unicast+0x449/0x710 [ 2140.741960][ T253] netlink_sendmsg+0x723/0xbe0 [ 2140.741960][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2140.741960][ T253] ___sys_sendmsg+0xee/0x170 [ 2140.741960][ T253] __sys_sendmsg+0xcd/0x170 [ 2140.741960][ T253] do_syscall_64+0xc6/0x1e0 [ 2140.741960][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2140.741960][ T253] [ 2140.743703][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2140.743703][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2140.743703][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2140.743703][ T253] ipv6_find_idev+0x102/0x170 [ 2140.743703][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2140.743703][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2140.743703][ T253] netlink_rcv_skb+0x130/0x360 [ 2140.743703][ T253] netlink_unicast+0x449/0x710 [ 2140.743703][ T253] netlink_sendmsg+0x723/0xbe0 [ 2140.743703][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2140.743703][ T253] ___sys_sendmsg+0xee/0x170 [ 2140.743703][ T253] __sys_sendmsg+0xcd/0x170 [ 2140.743703][ T253] do_syscall_64+0xc6/0x1e0 [ 2140.743703][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2140.743703][ T253] [ 2150.850260][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2150.850758][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2150.850758][ T253] dst_init+0x84/0x4a0 [ 2150.850758][ T253] dst_alloc+0x97/0x150 [ 2150.850758][ T253] ip6_dst_alloc+0x23/0x90 [ 2150.850758][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2150.850758][ T253] ip6_pol_route+0x56f/0x840 [ 2150.850758][ T253] fib6_rule_lookup+0x334/0x630 [ 2150.850758][ T253] ip6_route_output_flags+0x259/0x480 [ 2150.850758][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2150.850758][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2150.850758][ T253] netlink_rcv_skb+0x130/0x360 [ 2150.850758][ T253] netlink_unicast+0x449/0x710 [ 2150.850758][ T253] netlink_sendmsg+0x723/0xbe0 [ 2150.850758][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2150.850758][ T253] ___sys_sendmsg+0xee/0x170 [ 2150.850758][ T253] __sys_sendmsg+0xcd/0x170 [ 2150.850758][ T253] do_syscall_64+0xc6/0x1e0 [ 2150.850758][ T253] [ 2150.852987][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2150.852987][ T253] netdev_get_by_index+0x5e/0x80 [ 2150.852987][ T253] fib6_nh_init+0x3d8/0x1580 [ 2150.852987][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2150.852987][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2150.852987][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2150.852987][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2150.852987][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2150.852987][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2150.852987][ T253] addrconf_dad_begin+0x310/0x670 [ 2150.852987][ T253] addrconf_dad_work+0x10b/0xab0 [ 2150.852987][ T253] process_one_work+0x84d/0x18a0 [ 2150.852987][ T253] worker_thread+0x587/0xd30 [ 2150.852987][ T253] kthread+0x28a/0x350 [ 2150.852987][ T253] ret_from_fork+0x31/0x70 [ 2150.852987][ T253] ret_from_fork_asm+0x1a/0x30 [ 2150.852987][ T253] [ 2150.855168][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2150.855168][ T253] netdev_get_by_index+0x5e/0x80 [ 2150.855168][ T253] fib6_nh_init+0x3d8/0x1580 [ 2150.855168][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2150.855168][ T253] ip6_route_add+0x1c/0x140 [ 2150.855168][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2150.855168][ T253] inet6_addr_add+0x4f8/0xa40 [ 2150.855168][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2150.855168][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.855168][ T253] netlink_rcv_skb+0x130/0x360 [ 2150.855168][ T253] netlink_unicast+0x449/0x710 [ 2150.855168][ T253] netlink_sendmsg+0x723/0xbe0 [ 2150.855168][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2150.855168][ T253] ___sys_sendmsg+0xee/0x170 [ 2150.855168][ T253] __sys_sendmsg+0xcd/0x170 [ 2150.855168][ T253] do_syscall_64+0xc6/0x1e0 [ 2150.855168][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.855168][ T253] [ 2150.857433][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2150.857433][ T253] netdev_get_by_index+0x5e/0x80 [ 2150.857433][ T253] fib6_nh_init+0x3d8/0x1580 [ 2150.857433][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2150.857433][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2150.857433][ T253] ipv6_add_addr+0x411/0x2000 [ 2150.857433][ T253] inet6_addr_add+0x30e/0xa40 [ 2150.857433][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2150.857433][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.857433][ T253] netlink_rcv_skb+0x130/0x360 [ 2150.857433][ T253] netlink_unicast+0x449/0x710 [ 2150.857433][ T253] netlink_sendmsg+0x723/0xbe0 [ 2150.857433][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2150.857433][ T253] ___sys_sendmsg+0xee/0x170 [ 2150.857433][ T253] __sys_sendmsg+0xcd/0x170 [ 2150.857433][ T253] do_syscall_64+0xc6/0x1e0 [ 2150.857433][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.857433][ T253] [ 2150.859702][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2150.859702][ T253] netdev_get_by_index+0x5e/0x80 [ 2150.859702][ T253] fib6_nh_init+0x3d8/0x1580 [ 2150.859702][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2150.859702][ T253] ip6_route_add+0x1c/0x140 [ 2150.859702][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2150.859702][ T253] addrconf_add_dev+0xe2/0x170 [ 2150.859702][ T253] inet6_addr_add+0x12f/0xa40 [ 2150.859702][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2150.859702][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.859702][ T253] netlink_rcv_skb+0x130/0x360 [ 2150.859702][ T253] netlink_unicast+0x449/0x710 [ 2150.859702][ T253] netlink_sendmsg+0x723/0xbe0 [ 2150.859702][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2150.859702][ T253] ___sys_sendmsg+0xee/0x170 [ 2150.859702][ T253] __sys_sendmsg+0xcd/0x170 [ 2150.859702][ T253] do_syscall_64+0xc6/0x1e0 [ 2150.859702][ T253] [ 2150.861924][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2150.861924][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2150.861924][ T253] ipv6_find_idev+0x102/0x170 [ 2150.861924][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2150.861924][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.861924][ T253] netlink_rcv_skb+0x130/0x360 [ 2150.861924][ T253] netlink_unicast+0x449/0x710 [ 2150.861924][ T253] netlink_sendmsg+0x723/0xbe0 [ 2150.861924][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2150.861924][ T253] ___sys_sendmsg+0xee/0x170 [ 2150.861924][ T253] __sys_sendmsg+0xcd/0x170 [ 2150.861924][ T253] do_syscall_64+0xc6/0x1e0 [ 2150.861924][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.861924][ T253] [ 2150.863669][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2150.863669][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2150.863669][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2150.863669][ T253] ipv6_find_idev+0x102/0x170 [ 2150.863669][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2150.863669][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.863669][ T253] netlink_rcv_skb+0x130/0x360 [ 2150.863669][ T253] netlink_unicast+0x449/0x710 [ 2150.863669][ T253] netlink_sendmsg+0x723/0xbe0 [ 2150.863669][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2150.863669][ T253] ___sys_sendmsg+0xee/0x170 [ 2150.863669][ T253] __sys_sendmsg+0xcd/0x170 [ 2150.863669][ T253] do_syscall_64+0xc6/0x1e0 [ 2150.863669][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.863669][ T253] [ 2161.114356][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2161.114895][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2161.114895][ T253] dst_init+0x84/0x4a0 [ 2161.114895][ T253] dst_alloc+0x97/0x150 [ 2161.114895][ T253] ip6_dst_alloc+0x23/0x90 [ 2161.114895][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2161.114895][ T253] ip6_pol_route+0x56f/0x840 [ 2161.114895][ T253] fib6_rule_lookup+0x334/0x630 [ 2161.114895][ T253] ip6_route_output_flags+0x259/0x480 [ 2161.114895][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2161.114895][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2161.114895][ T253] netlink_rcv_skb+0x130/0x360 [ 2161.114895][ T253] netlink_unicast+0x449/0x710 [ 2161.114895][ T253] netlink_sendmsg+0x723/0xbe0 [ 2161.114895][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2161.114895][ T253] ___sys_sendmsg+0xee/0x170 [ 2161.114895][ T253] __sys_sendmsg+0xcd/0x170 [ 2161.114895][ T253] do_syscall_64+0xc6/0x1e0 [ 2161.114895][ T253] [ 2161.117320][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2161.117320][ T253] netdev_get_by_index+0x5e/0x80 [ 2161.117320][ T253] fib6_nh_init+0x3d8/0x1580 [ 2161.117320][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2161.117320][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2161.117320][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2161.117320][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2161.117320][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2161.117320][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2161.117320][ T253] addrconf_dad_begin+0x310/0x670 [ 2161.117320][ T253] addrconf_dad_work+0x10b/0xab0 [ 2161.117320][ T253] process_one_work+0x84d/0x18a0 [ 2161.117320][ T253] worker_thread+0x587/0xd30 [ 2161.117320][ T253] kthread+0x28a/0x350 [ 2161.117320][ T253] ret_from_fork+0x31/0x70 [ 2161.117320][ T253] ret_from_fork_asm+0x1a/0x30 [ 2161.117320][ T253] [ 2161.119687][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2161.119687][ T253] netdev_get_by_index+0x5e/0x80 [ 2161.119687][ T253] fib6_nh_init+0x3d8/0x1580 [ 2161.119687][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2161.119687][ T253] ip6_route_add+0x1c/0x140 [ 2161.119687][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2161.119687][ T253] inet6_addr_add+0x4f8/0xa40 [ 2161.119687][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2161.119687][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2161.119687][ T253] netlink_rcv_skb+0x130/0x360 [ 2161.119687][ T253] netlink_unicast+0x449/0x710 [ 2161.119687][ T253] netlink_sendmsg+0x723/0xbe0 [ 2161.119687][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2161.119687][ T253] ___sys_sendmsg+0xee/0x170 [ 2161.119687][ T253] __sys_sendmsg+0xcd/0x170 [ 2161.119687][ T253] do_syscall_64+0xc6/0x1e0 [ 2161.119687][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2161.119687][ T253] [ 2161.122192][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2161.122192][ T253] netdev_get_by_index+0x5e/0x80 [ 2161.122192][ T253] fib6_nh_init+0x3d8/0x1580 [ 2161.122192][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2161.122192][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2161.122192][ T253] ipv6_add_addr+0x411/0x2000 [ 2161.122192][ T253] inet6_addr_add+0x30e/0xa40 [ 2161.122192][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2161.122192][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2161.122192][ T253] netlink_rcv_skb+0x130/0x360 [ 2161.122192][ T253] netlink_unicast+0x449/0x710 [ 2161.122192][ T253] netlink_sendmsg+0x723/0xbe0 [ 2161.122192][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2161.122192][ T253] ___sys_sendmsg+0xee/0x170 [ 2161.122192][ T253] __sys_sendmsg+0xcd/0x170 [ 2161.122192][ T253] do_syscall_64+0xc6/0x1e0 [ 2161.122192][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2161.122192][ T253] [ 2161.124664][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2161.124664][ T253] netdev_get_by_index+0x5e/0x80 [ 2161.124664][ T253] fib6_nh_init+0x3d8/0x1580 [ 2161.124664][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2161.124664][ T253] ip6_route_add+0x1c/0x140 [ 2161.124664][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2161.124664][ T253] addrconf_add_dev+0xe2/0x170 [ 2161.124664][ T253] inet6_addr_add+0x12f/0xa40 [ 2161.124664][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2161.124664][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2161.124664][ T253] netlink_rcv_skb+0x130/0x360 [ 2161.124664][ T253] netlink_unicast+0x449/0x710 [ 2161.124664][ T253] netlink_sendmsg+0x723/0xbe0 [ 2161.124664][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2161.124664][ T253] ___sys_sendmsg+0xee/0x170 [ 2161.124664][ T253] __sys_sendmsg+0xcd/0x170 [ 2161.124664][ T253] do_syscall_64+0xc6/0x1e0 [ 2161.124664][ T253] [ 2161.127101][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2161.127101][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2161.127101][ T253] ipv6_find_idev+0x102/0x170 [ 2161.127101][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2161.127101][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2161.127101][ T253] netlink_rcv_skb+0x130/0x360 [ 2161.127101][ T253] netlink_unicast+0x449/0x710 [ 2161.127101][ T253] netlink_sendmsg+0x723/0xbe0 [ 2161.127101][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2161.127101][ T253] ___sys_sendmsg+0xee/0x170 [ 2161.127101][ T253] __sys_sendmsg+0xcd/0x170 [ 2161.127101][ T253] do_syscall_64+0xc6/0x1e0 [ 2161.127101][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2161.127101][ T253] [ 2161.129003][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2161.129003][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2161.129003][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2161.129003][ T253] ipv6_find_idev+0x102/0x170 [ 2161.129003][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2161.129003][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2161.129003][ T253] netlink_rcv_skb+0x130/0x360 [ 2161.129003][ T253] netlink_unicast+0x449/0x710 [ 2161.129003][ T253] netlink_sendmsg+0x723/0xbe0 [ 2161.129003][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2161.129003][ T253] ___sys_sendmsg+0xee/0x170 [ 2161.129003][ T253] __sys_sendmsg+0xcd/0x170 [ 2161.129003][ T253] do_syscall_64+0xc6/0x1e0 [ 2161.129003][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2161.129003][ T253] [ 2171.378401][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2171.378899][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2171.378899][ T253] dst_init+0x84/0x4a0 [ 2171.378899][ T253] dst_alloc+0x97/0x150 [ 2171.378899][ T253] ip6_dst_alloc+0x23/0x90 [ 2171.378899][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2171.378899][ T253] ip6_pol_route+0x56f/0x840 [ 2171.378899][ T253] fib6_rule_lookup+0x334/0x630 [ 2171.378899][ T253] ip6_route_output_flags+0x259/0x480 [ 2171.378899][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2171.378899][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2171.378899][ T253] netlink_rcv_skb+0x130/0x360 [ 2171.378899][ T253] netlink_unicast+0x449/0x710 [ 2171.378899][ T253] netlink_sendmsg+0x723/0xbe0 [ 2171.378899][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2171.378899][ T253] ___sys_sendmsg+0xee/0x170 [ 2171.378899][ T253] __sys_sendmsg+0xcd/0x170 [ 2171.378899][ T253] do_syscall_64+0xc6/0x1e0 [ 2171.378899][ T253] [ 2171.381161][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2171.381161][ T253] netdev_get_by_index+0x5e/0x80 [ 2171.381161][ T253] fib6_nh_init+0x3d8/0x1580 [ 2171.381161][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2171.381161][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2171.381161][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2171.381161][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2171.381161][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2171.381161][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2171.381161][ T253] addrconf_dad_begin+0x310/0x670 [ 2171.381161][ T253] addrconf_dad_work+0x10b/0xab0 [ 2171.381161][ T253] process_one_work+0x84d/0x18a0 [ 2171.381161][ T253] worker_thread+0x587/0xd30 [ 2171.381161][ T253] kthread+0x28a/0x350 [ 2171.381161][ T253] ret_from_fork+0x31/0x70 [ 2171.381161][ T253] ret_from_fork_asm+0x1a/0x30 [ 2171.381161][ T253] [ 2171.383330][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2171.383330][ T253] netdev_get_by_index+0x5e/0x80 [ 2171.383330][ T253] fib6_nh_init+0x3d8/0x1580 [ 2171.383330][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2171.383330][ T253] ip6_route_add+0x1c/0x140 [ 2171.383330][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2171.383330][ T253] inet6_addr_add+0x4f8/0xa40 [ 2171.383330][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2171.383330][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2171.383330][ T253] netlink_rcv_skb+0x130/0x360 [ 2171.383330][ T253] netlink_unicast+0x449/0x710 [ 2171.383330][ T253] netlink_sendmsg+0x723/0xbe0 [ 2171.383330][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2171.383330][ T253] ___sys_sendmsg+0xee/0x170 [ 2171.383330][ T253] __sys_sendmsg+0xcd/0x170 [ 2171.383330][ T253] do_syscall_64+0xc6/0x1e0 [ 2171.383330][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2171.383330][ T253] [ 2171.385591][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2171.385591][ T253] netdev_get_by_index+0x5e/0x80 [ 2171.385591][ T253] fib6_nh_init+0x3d8/0x1580 [ 2171.385591][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2171.385591][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2171.385591][ T253] ipv6_add_addr+0x411/0x2000 [ 2171.385591][ T253] inet6_addr_add+0x30e/0xa40 [ 2171.385591][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2171.385591][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2171.385591][ T253] netlink_rcv_skb+0x130/0x360 [ 2171.385591][ T253] netlink_unicast+0x449/0x710 [ 2171.385591][ T253] netlink_sendmsg+0x723/0xbe0 [ 2171.385591][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2171.385591][ T253] ___sys_sendmsg+0xee/0x170 [ 2171.385591][ T253] __sys_sendmsg+0xcd/0x170 [ 2171.385591][ T253] do_syscall_64+0xc6/0x1e0 [ 2171.385591][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2171.385591][ T253] [ 2171.387864][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2171.387864][ T253] netdev_get_by_index+0x5e/0x80 [ 2171.387864][ T253] fib6_nh_init+0x3d8/0x1580 [ 2171.387864][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2171.387864][ T253] ip6_route_add+0x1c/0x140 [ 2171.387864][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2171.387864][ T253] addrconf_add_dev+0xe2/0x170 [ 2171.387864][ T253] inet6_addr_add+0x12f/0xa40 [ 2171.387864][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2171.387864][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2171.387864][ T253] netlink_rcv_skb+0x130/0x360 [ 2171.387864][ T253] netlink_unicast+0x449/0x710 [ 2171.387864][ T253] netlink_sendmsg+0x723/0xbe0 [ 2171.387864][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2171.387864][ T253] ___sys_sendmsg+0xee/0x170 [ 2171.387864][ T253] __sys_sendmsg+0xcd/0x170 [ 2171.387864][ T253] do_syscall_64+0xc6/0x1e0 [ 2171.387864][ T253] [ 2171.390099][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2171.390099][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2171.390099][ T253] ipv6_find_idev+0x102/0x170 [ 2171.390099][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2171.390099][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2171.390099][ T253] netlink_rcv_skb+0x130/0x360 [ 2171.390099][ T253] netlink_unicast+0x449/0x710 [ 2171.390099][ T253] netlink_sendmsg+0x723/0xbe0 [ 2171.390099][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2171.390099][ T253] ___sys_sendmsg+0xee/0x170 [ 2171.390099][ T253] __sys_sendmsg+0xcd/0x170 [ 2171.390099][ T253] do_syscall_64+0xc6/0x1e0 [ 2171.390099][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2171.390099][ T253] [ 2171.391846][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2171.391846][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2171.391846][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2171.391846][ T253] ipv6_find_idev+0x102/0x170 [ 2171.391846][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2171.391846][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2171.391846][ T253] netlink_rcv_skb+0x130/0x360 [ 2171.391846][ T253] netlink_unicast+0x449/0x710 [ 2171.391846][ T253] netlink_sendmsg+0x723/0xbe0 [ 2171.391846][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2171.391846][ T253] ___sys_sendmsg+0xee/0x170 [ 2171.391846][ T253] __sys_sendmsg+0xcd/0x170 [ 2171.391846][ T253] do_syscall_64+0xc6/0x1e0 [ 2171.391846][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2171.391846][ T253] [ 2181.642355][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2181.642916][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2181.642916][ T253] dst_init+0x84/0x4a0 [ 2181.642916][ T253] dst_alloc+0x97/0x150 [ 2181.642916][ T253] ip6_dst_alloc+0x23/0x90 [ 2181.642916][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2181.642916][ T253] ip6_pol_route+0x56f/0x840 [ 2181.642916][ T253] fib6_rule_lookup+0x334/0x630 [ 2181.642916][ T253] ip6_route_output_flags+0x259/0x480 [ 2181.642916][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2181.642916][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2181.642916][ T253] netlink_rcv_skb+0x130/0x360 [ 2181.642916][ T253] netlink_unicast+0x449/0x710 [ 2181.642916][ T253] netlink_sendmsg+0x723/0xbe0 [ 2181.642916][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2181.642916][ T253] ___sys_sendmsg+0xee/0x170 [ 2181.642916][ T253] __sys_sendmsg+0xcd/0x170 [ 2181.642916][ T253] do_syscall_64+0xc6/0x1e0 [ 2181.642916][ T253] [ 2181.645204][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2181.645204][ T253] netdev_get_by_index+0x5e/0x80 [ 2181.645204][ T253] fib6_nh_init+0x3d8/0x1580 [ 2181.645204][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2181.645204][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2181.645204][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2181.645204][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2181.645204][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2181.645204][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2181.645204][ T253] addrconf_dad_begin+0x310/0x670 [ 2181.645204][ T253] addrconf_dad_work+0x10b/0xab0 [ 2181.645204][ T253] process_one_work+0x84d/0x18a0 [ 2181.645204][ T253] worker_thread+0x587/0xd30 [ 2181.645204][ T253] kthread+0x28a/0x350 [ 2181.645204][ T253] ret_from_fork+0x31/0x70 [ 2181.645204][ T253] ret_from_fork_asm+0x1a/0x30 [ 2181.645204][ T253] [ 2181.647376][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2181.647376][ T253] netdev_get_by_index+0x5e/0x80 [ 2181.647376][ T253] fib6_nh_init+0x3d8/0x1580 [ 2181.647376][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2181.647376][ T253] ip6_route_add+0x1c/0x140 [ 2181.647376][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2181.647376][ T253] inet6_addr_add+0x4f8/0xa40 [ 2181.647376][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2181.647376][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2181.647376][ T253] netlink_rcv_skb+0x130/0x360 [ 2181.647376][ T253] netlink_unicast+0x449/0x710 [ 2181.647376][ T253] netlink_sendmsg+0x723/0xbe0 [ 2181.647376][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2181.647376][ T253] ___sys_sendmsg+0xee/0x170 [ 2181.647376][ T253] __sys_sendmsg+0xcd/0x170 [ 2181.647376][ T253] do_syscall_64+0xc6/0x1e0 [ 2181.647376][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2181.647376][ T253] [ 2181.649662][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2181.649662][ T253] netdev_get_by_index+0x5e/0x80 [ 2181.649662][ T253] fib6_nh_init+0x3d8/0x1580 [ 2181.649662][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2181.649662][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2181.649662][ T253] ipv6_add_addr+0x411/0x2000 [ 2181.649662][ T253] inet6_addr_add+0x30e/0xa40 [ 2181.649662][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2181.649662][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2181.649662][ T253] netlink_rcv_skb+0x130/0x360 [ 2181.649662][ T253] netlink_unicast+0x449/0x710 [ 2181.649662][ T253] netlink_sendmsg+0x723/0xbe0 [ 2181.649662][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2181.649662][ T253] ___sys_sendmsg+0xee/0x170 [ 2181.649662][ T253] __sys_sendmsg+0xcd/0x170 [ 2181.649662][ T253] do_syscall_64+0xc6/0x1e0 [ 2181.649662][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2181.649662][ T253] [ 2181.651928][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2181.651928][ T253] netdev_get_by_index+0x5e/0x80 [ 2181.651928][ T253] fib6_nh_init+0x3d8/0x1580 [ 2181.651928][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2181.651928][ T253] ip6_route_add+0x1c/0x140 [ 2181.651928][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2181.651928][ T253] addrconf_add_dev+0xe2/0x170 [ 2181.651928][ T253] inet6_addr_add+0x12f/0xa40 [ 2181.651928][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2181.651928][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2181.651928][ T253] netlink_rcv_skb+0x130/0x360 [ 2181.651928][ T253] netlink_unicast+0x449/0x710 [ 2181.651928][ T253] netlink_sendmsg+0x723/0xbe0 [ 2181.651928][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2181.651928][ T253] ___sys_sendmsg+0xee/0x170 [ 2181.651928][ T253] __sys_sendmsg+0xcd/0x170 [ 2181.651928][ T253] do_syscall_64+0xc6/0x1e0 [ 2181.651928][ T253] [ 2181.654150][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2181.654150][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2181.654150][ T253] ipv6_find_idev+0x102/0x170 [ 2181.654150][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2181.654150][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2181.654150][ T253] netlink_rcv_skb+0x130/0x360 [ 2181.654150][ T253] netlink_unicast+0x449/0x710 [ 2181.654150][ T253] netlink_sendmsg+0x723/0xbe0 [ 2181.654150][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2181.654150][ T253] ___sys_sendmsg+0xee/0x170 [ 2181.654150][ T253] __sys_sendmsg+0xcd/0x170 [ 2181.654150][ T253] do_syscall_64+0xc6/0x1e0 [ 2181.654150][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2181.654150][ T253] [ 2181.655895][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2181.655895][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2181.655895][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2181.655895][ T253] ipv6_find_idev+0x102/0x170 [ 2181.655895][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2181.655895][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2181.655895][ T253] netlink_rcv_skb+0x130/0x360 [ 2181.655895][ T253] netlink_unicast+0x449/0x710 [ 2181.655895][ T253] netlink_sendmsg+0x723/0xbe0 [ 2181.655895][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2181.655895][ T253] ___sys_sendmsg+0xee/0x170 [ 2181.655895][ T253] __sys_sendmsg+0xcd/0x170 [ 2181.655895][ T253] do_syscall_64+0xc6/0x1e0 [ 2181.655895][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2181.655895][ T253] [ 2191.906262][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2191.906765][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2191.906765][ T253] dst_init+0x84/0x4a0 [ 2191.906765][ T253] dst_alloc+0x97/0x150 [ 2191.906765][ T253] ip6_dst_alloc+0x23/0x90 [ 2191.906765][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2191.906765][ T253] ip6_pol_route+0x56f/0x840 [ 2191.906765][ T253] fib6_rule_lookup+0x334/0x630 [ 2191.906765][ T253] ip6_route_output_flags+0x259/0x480 [ 2191.906765][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2191.906765][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2191.906765][ T253] netlink_rcv_skb+0x130/0x360 [ 2191.906765][ T253] netlink_unicast+0x449/0x710 [ 2191.906765][ T253] netlink_sendmsg+0x723/0xbe0 [ 2191.906765][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2191.906765][ T253] ___sys_sendmsg+0xee/0x170 [ 2191.906765][ T253] __sys_sendmsg+0xcd/0x170 [ 2191.906765][ T253] do_syscall_64+0xc6/0x1e0 [ 2191.906765][ T253] [ 2191.909038][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2191.909038][ T253] netdev_get_by_index+0x5e/0x80 [ 2191.909038][ T253] fib6_nh_init+0x3d8/0x1580 [ 2191.909038][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2191.909038][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2191.909038][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2191.909038][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2191.909038][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2191.909038][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2191.909038][ T253] addrconf_dad_begin+0x310/0x670 [ 2191.909038][ T253] addrconf_dad_work+0x10b/0xab0 [ 2191.909038][ T253] process_one_work+0x84d/0x18a0 [ 2191.909038][ T253] worker_thread+0x587/0xd30 [ 2191.909038][ T253] kthread+0x28a/0x350 [ 2191.909038][ T253] ret_from_fork+0x31/0x70 [ 2191.909038][ T253] ret_from_fork_asm+0x1a/0x30 [ 2191.909038][ T253] [ 2191.911240][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2191.911240][ T253] netdev_get_by_index+0x5e/0x80 [ 2191.911240][ T253] fib6_nh_init+0x3d8/0x1580 [ 2191.911240][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2191.911240][ T253] ip6_route_add+0x1c/0x140 [ 2191.911240][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2191.911240][ T253] inet6_addr_add+0x4f8/0xa40 [ 2191.911240][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2191.911240][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2191.911240][ T253] netlink_rcv_skb+0x130/0x360 [ 2191.911240][ T253] netlink_unicast+0x449/0x710 [ 2191.911240][ T253] netlink_sendmsg+0x723/0xbe0 [ 2191.911240][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2191.911240][ T253] ___sys_sendmsg+0xee/0x170 [ 2191.911240][ T253] __sys_sendmsg+0xcd/0x170 [ 2191.911240][ T253] do_syscall_64+0xc6/0x1e0 [ 2191.911240][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2191.911240][ T253] [ 2191.913640][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2191.913640][ T253] netdev_get_by_index+0x5e/0x80 [ 2191.913640][ T253] fib6_nh_init+0x3d8/0x1580 [ 2191.913640][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2191.913640][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2191.913640][ T253] ipv6_add_addr+0x411/0x2000 [ 2191.913640][ T253] inet6_addr_add+0x30e/0xa40 [ 2191.913640][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2191.913640][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2191.913640][ T253] netlink_rcv_skb+0x130/0x360 [ 2191.913640][ T253] netlink_unicast+0x449/0x710 [ 2191.913640][ T253] netlink_sendmsg+0x723/0xbe0 [ 2191.913640][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2191.913640][ T253] ___sys_sendmsg+0xee/0x170 [ 2191.913640][ T253] __sys_sendmsg+0xcd/0x170 [ 2191.913640][ T253] do_syscall_64+0xc6/0x1e0 [ 2191.913640][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2191.913640][ T253] [ 2191.915934][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2191.915934][ T253] netdev_get_by_index+0x5e/0x80 [ 2191.915934][ T253] fib6_nh_init+0x3d8/0x1580 [ 2191.915934][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2191.915934][ T253] ip6_route_add+0x1c/0x140 [ 2191.915934][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2191.915934][ T253] addrconf_add_dev+0xe2/0x170 [ 2191.915934][ T253] inet6_addr_add+0x12f/0xa40 [ 2191.915934][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2191.915934][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2191.915934][ T253] netlink_rcv_skb+0x130/0x360 [ 2191.915934][ T253] netlink_unicast+0x449/0x710 [ 2191.915934][ T253] netlink_sendmsg+0x723/0xbe0 [ 2191.915934][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2191.915934][ T253] ___sys_sendmsg+0xee/0x170 [ 2191.915934][ T253] __sys_sendmsg+0xcd/0x170 [ 2191.915934][ T253] do_syscall_64+0xc6/0x1e0 [ 2191.915934][ T253] [ 2191.918185][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2191.918185][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2191.918185][ T253] ipv6_find_idev+0x102/0x170 [ 2191.918185][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2191.918185][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2191.918185][ T253] netlink_rcv_skb+0x130/0x360 [ 2191.918185][ T253] netlink_unicast+0x449/0x710 [ 2191.918185][ T253] netlink_sendmsg+0x723/0xbe0 [ 2191.918185][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2191.918185][ T253] ___sys_sendmsg+0xee/0x170 [ 2191.918185][ T253] __sys_sendmsg+0xcd/0x170 [ 2191.918185][ T253] do_syscall_64+0xc6/0x1e0 [ 2191.918185][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2191.918185][ T253] [ 2191.919969][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2191.919969][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2191.919969][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2191.919969][ T253] ipv6_find_idev+0x102/0x170 [ 2191.919969][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2191.919969][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2191.919969][ T253] netlink_rcv_skb+0x130/0x360 [ 2191.919969][ T253] netlink_unicast+0x449/0x710 [ 2191.919969][ T253] netlink_sendmsg+0x723/0xbe0 [ 2191.919969][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2191.919969][ T253] ___sys_sendmsg+0xee/0x170 [ 2191.919969][ T253] __sys_sendmsg+0xcd/0x170 [ 2191.919969][ T253] do_syscall_64+0xc6/0x1e0 [ 2191.919969][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2191.919969][ T253] [ 2202.130313][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2202.130838][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2202.130838][ T253] dst_init+0x84/0x4a0 [ 2202.130838][ T253] dst_alloc+0x97/0x150 [ 2202.130838][ T253] ip6_dst_alloc+0x23/0x90 [ 2202.130838][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2202.130838][ T253] ip6_pol_route+0x56f/0x840 [ 2202.130838][ T253] fib6_rule_lookup+0x334/0x630 [ 2202.130838][ T253] ip6_route_output_flags+0x259/0x480 [ 2202.130838][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2202.130838][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2202.130838][ T253] netlink_rcv_skb+0x130/0x360 [ 2202.130838][ T253] netlink_unicast+0x449/0x710 [ 2202.130838][ T253] netlink_sendmsg+0x723/0xbe0 [ 2202.130838][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2202.130838][ T253] ___sys_sendmsg+0xee/0x170 [ 2202.130838][ T253] __sys_sendmsg+0xcd/0x170 [ 2202.130838][ T253] do_syscall_64+0xc6/0x1e0 [ 2202.130838][ T253] [ 2202.133246][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2202.133246][ T253] netdev_get_by_index+0x5e/0x80 [ 2202.133246][ T253] fib6_nh_init+0x3d8/0x1580 [ 2202.133246][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2202.133246][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2202.133246][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2202.133246][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2202.133246][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2202.133246][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2202.133246][ T253] addrconf_dad_begin+0x310/0x670 [ 2202.133246][ T253] addrconf_dad_work+0x10b/0xab0 [ 2202.133246][ T253] process_one_work+0x84d/0x18a0 [ 2202.133246][ T253] worker_thread+0x587/0xd30 [ 2202.133246][ T253] kthread+0x28a/0x350 [ 2202.133246][ T253] ret_from_fork+0x31/0x70 [ 2202.133246][ T253] ret_from_fork_asm+0x1a/0x30 [ 2202.133246][ T253] [ 2202.135634][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2202.135634][ T253] netdev_get_by_index+0x5e/0x80 [ 2202.135634][ T253] fib6_nh_init+0x3d8/0x1580 [ 2202.135634][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2202.135634][ T253] ip6_route_add+0x1c/0x140 [ 2202.135634][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2202.135634][ T253] inet6_addr_add+0x4f8/0xa40 [ 2202.135634][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2202.135634][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2202.135634][ T253] netlink_rcv_skb+0x130/0x360 [ 2202.135634][ T253] netlink_unicast+0x449/0x710 [ 2202.135634][ T253] netlink_sendmsg+0x723/0xbe0 [ 2202.135634][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2202.135634][ T253] ___sys_sendmsg+0xee/0x170 [ 2202.135634][ T253] __sys_sendmsg+0xcd/0x170 [ 2202.135634][ T253] do_syscall_64+0xc6/0x1e0 [ 2202.135634][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2202.135634][ T253] [ 2202.138166][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2202.138166][ T253] netdev_get_by_index+0x5e/0x80 [ 2202.138166][ T253] fib6_nh_init+0x3d8/0x1580 [ 2202.138166][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2202.138166][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2202.138166][ T253] ipv6_add_addr+0x411/0x2000 [ 2202.138166][ T253] inet6_addr_add+0x30e/0xa40 [ 2202.138166][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2202.138166][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2202.138166][ T253] netlink_rcv_skb+0x130/0x360 [ 2202.138166][ T253] netlink_unicast+0x449/0x710 [ 2202.138166][ T253] netlink_sendmsg+0x723/0xbe0 [ 2202.138166][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2202.138166][ T253] ___sys_sendmsg+0xee/0x170 [ 2202.138166][ T253] __sys_sendmsg+0xcd/0x170 [ 2202.138166][ T253] do_syscall_64+0xc6/0x1e0 [ 2202.138166][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2202.138166][ T253] [ 2202.140655][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2202.140655][ T253] netdev_get_by_index+0x5e/0x80 [ 2202.140655][ T253] fib6_nh_init+0x3d8/0x1580 [ 2202.140655][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2202.140655][ T253] ip6_route_add+0x1c/0x140 [ 2202.140655][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2202.140655][ T253] addrconf_add_dev+0xe2/0x170 [ 2202.140655][ T253] inet6_addr_add+0x12f/0xa40 [ 2202.140655][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2202.140655][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2202.140655][ T253] netlink_rcv_skb+0x130/0x360 [ 2202.140655][ T253] netlink_unicast+0x449/0x710 [ 2202.140655][ T253] netlink_sendmsg+0x723/0xbe0 [ 2202.140655][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2202.140655][ T253] ___sys_sendmsg+0xee/0x170 [ 2202.140655][ T253] __sys_sendmsg+0xcd/0x170 [ 2202.140655][ T253] do_syscall_64+0xc6/0x1e0 [ 2202.140655][ T253] [ 2202.143174][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2202.143174][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2202.143174][ T253] ipv6_find_idev+0x102/0x170 [ 2202.143174][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2202.143174][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2202.143174][ T253] netlink_rcv_skb+0x130/0x360 [ 2202.143174][ T253] netlink_unicast+0x449/0x710 [ 2202.143174][ T253] netlink_sendmsg+0x723/0xbe0 [ 2202.143174][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2202.143174][ T253] ___sys_sendmsg+0xee/0x170 [ 2202.143174][ T253] __sys_sendmsg+0xcd/0x170 [ 2202.143174][ T253] do_syscall_64+0xc6/0x1e0 [ 2202.143174][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2202.143174][ T253] [ 2202.145258][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2202.145258][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2202.145258][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2202.145258][ T253] ipv6_find_idev+0x102/0x170 [ 2202.145258][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2202.145258][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2202.145258][ T253] netlink_rcv_skb+0x130/0x360 [ 2202.145258][ T253] netlink_unicast+0x449/0x710 [ 2202.145258][ T253] netlink_sendmsg+0x723/0xbe0 [ 2202.145258][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2202.145258][ T253] ___sys_sendmsg+0xee/0x170 [ 2202.145258][ T253] __sys_sendmsg+0xcd/0x170 [ 2202.145258][ T253] do_syscall_64+0xc6/0x1e0 [ 2202.145258][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2202.145258][ T253] [ 2212.338421][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2212.338948][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2212.338948][ T253] dst_init+0x84/0x4a0 [ 2212.338948][ T253] dst_alloc+0x97/0x150 [ 2212.338948][ T253] ip6_dst_alloc+0x23/0x90 [ 2212.338948][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2212.338948][ T253] ip6_pol_route+0x56f/0x840 [ 2212.338948][ T253] fib6_rule_lookup+0x334/0x630 [ 2212.338948][ T253] ip6_route_output_flags+0x259/0x480 [ 2212.338948][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2212.338948][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2212.338948][ T253] netlink_rcv_skb+0x130/0x360 [ 2212.338948][ T253] netlink_unicast+0x449/0x710 [ 2212.338948][ T253] netlink_sendmsg+0x723/0xbe0 [ 2212.338948][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2212.338948][ T253] ___sys_sendmsg+0xee/0x170 [ 2212.338948][ T253] __sys_sendmsg+0xcd/0x170 [ 2212.338948][ T253] do_syscall_64+0xc6/0x1e0 [ 2212.338948][ T253] [ 2212.341400][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2212.341400][ T253] netdev_get_by_index+0x5e/0x80 [ 2212.341400][ T253] fib6_nh_init+0x3d8/0x1580 [ 2212.341400][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2212.341400][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2212.341400][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2212.341400][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2212.341400][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2212.341400][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2212.341400][ T253] addrconf_dad_begin+0x310/0x670 [ 2212.341400][ T253] addrconf_dad_work+0x10b/0xab0 [ 2212.341400][ T253] process_one_work+0x84d/0x18a0 [ 2212.341400][ T253] worker_thread+0x587/0xd30 [ 2212.341400][ T253] kthread+0x28a/0x350 [ 2212.341400][ T253] ret_from_fork+0x31/0x70 [ 2212.341400][ T253] ret_from_fork_asm+0x1a/0x30 [ 2212.341400][ T253] [ 2212.343779][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2212.343779][ T253] netdev_get_by_index+0x5e/0x80 [ 2212.343779][ T253] fib6_nh_init+0x3d8/0x1580 [ 2212.343779][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2212.343779][ T253] ip6_route_add+0x1c/0x140 [ 2212.343779][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2212.343779][ T253] inet6_addr_add+0x4f8/0xa40 [ 2212.343779][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2212.343779][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2212.343779][ T253] netlink_rcv_skb+0x130/0x360 [ 2212.343779][ T253] netlink_unicast+0x449/0x710 [ 2212.343779][ T253] netlink_sendmsg+0x723/0xbe0 [ 2212.343779][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2212.343779][ T253] ___sys_sendmsg+0xee/0x170 [ 2212.343779][ T253] __sys_sendmsg+0xcd/0x170 [ 2212.343779][ T253] do_syscall_64+0xc6/0x1e0 [ 2212.343779][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2212.343779][ T253] [ 2212.346266][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2212.346266][ T253] netdev_get_by_index+0x5e/0x80 [ 2212.346266][ T253] fib6_nh_init+0x3d8/0x1580 [ 2212.346266][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2212.346266][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2212.346266][ T253] ipv6_add_addr+0x411/0x2000 [ 2212.346266][ T253] inet6_addr_add+0x30e/0xa40 [ 2212.346266][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2212.346266][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2212.346266][ T253] netlink_rcv_skb+0x130/0x360 [ 2212.346266][ T253] netlink_unicast+0x449/0x710 [ 2212.346266][ T253] netlink_sendmsg+0x723/0xbe0 [ 2212.346266][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2212.346266][ T253] ___sys_sendmsg+0xee/0x170 [ 2212.346266][ T253] __sys_sendmsg+0xcd/0x170 [ 2212.346266][ T253] do_syscall_64+0xc6/0x1e0 [ 2212.346266][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2212.346266][ T253] [ 2212.348766][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2212.348766][ T253] netdev_get_by_index+0x5e/0x80 [ 2212.348766][ T253] fib6_nh_init+0x3d8/0x1580 [ 2212.348766][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2212.348766][ T253] ip6_route_add+0x1c/0x140 [ 2212.348766][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2212.348766][ T253] addrconf_add_dev+0xe2/0x170 [ 2212.348766][ T253] inet6_addr_add+0x12f/0xa40 [ 2212.348766][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2212.348766][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2212.348766][ T253] netlink_rcv_skb+0x130/0x360 [ 2212.348766][ T253] netlink_unicast+0x449/0x710 [ 2212.348766][ T253] netlink_sendmsg+0x723/0xbe0 [ 2212.348766][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2212.348766][ T253] ___sys_sendmsg+0xee/0x170 [ 2212.348766][ T253] __sys_sendmsg+0xcd/0x170 [ 2212.348766][ T253] do_syscall_64+0xc6/0x1e0 [ 2212.348766][ T253] [ 2212.351323][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2212.351323][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2212.351323][ T253] ipv6_find_idev+0x102/0x170 [ 2212.351323][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2212.351323][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2212.351323][ T253] netlink_rcv_skb+0x130/0x360 [ 2212.351323][ T253] netlink_unicast+0x449/0x710 [ 2212.351323][ T253] netlink_sendmsg+0x723/0xbe0 [ 2212.351323][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2212.351323][ T253] ___sys_sendmsg+0xee/0x170 [ 2212.351323][ T253] __sys_sendmsg+0xcd/0x170 [ 2212.351323][ T253] do_syscall_64+0xc6/0x1e0 [ 2212.351323][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2212.351323][ T253] [ 2212.353240][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2212.353240][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2212.353240][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2212.353240][ T253] ipv6_find_idev+0x102/0x170 [ 2212.353240][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2212.353240][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2212.353240][ T253] netlink_rcv_skb+0x130/0x360 [ 2212.353240][ T253] netlink_unicast+0x449/0x710 [ 2212.353240][ T253] netlink_sendmsg+0x723/0xbe0 [ 2212.353240][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2212.353240][ T253] ___sys_sendmsg+0xee/0x170 [ 2212.353240][ T253] __sys_sendmsg+0xcd/0x170 [ 2212.353240][ T253] do_syscall_64+0xc6/0x1e0 [ 2212.353240][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2212.353240][ T253] [ 2222.602351][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2222.602904][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2222.602904][ T253] dst_init+0x84/0x4a0 [ 2222.602904][ T253] dst_alloc+0x97/0x150 [ 2222.602904][ T253] ip6_dst_alloc+0x23/0x90 [ 2222.602904][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2222.602904][ T253] ip6_pol_route+0x56f/0x840 [ 2222.602904][ T253] fib6_rule_lookup+0x334/0x630 [ 2222.602904][ T253] ip6_route_output_flags+0x259/0x480 [ 2222.602904][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2222.602904][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2222.602904][ T253] netlink_rcv_skb+0x130/0x360 [ 2222.602904][ T253] netlink_unicast+0x449/0x710 [ 2222.602904][ T253] netlink_sendmsg+0x723/0xbe0 [ 2222.602904][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2222.602904][ T253] ___sys_sendmsg+0xee/0x170 [ 2222.602904][ T253] __sys_sendmsg+0xcd/0x170 [ 2222.602904][ T253] do_syscall_64+0xc6/0x1e0 [ 2222.602904][ T253] [ 2222.605349][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2222.605349][ T253] netdev_get_by_index+0x5e/0x80 [ 2222.605349][ T253] fib6_nh_init+0x3d8/0x1580 [ 2222.605349][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2222.605349][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2222.605349][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2222.605349][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2222.605349][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2222.605349][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2222.605349][ T253] addrconf_dad_begin+0x310/0x670 [ 2222.605349][ T253] addrconf_dad_work+0x10b/0xab0 [ 2222.605349][ T253] process_one_work+0x84d/0x18a0 [ 2222.605349][ T253] worker_thread+0x587/0xd30 [ 2222.605349][ T253] kthread+0x28a/0x350 [ 2222.605349][ T253] ret_from_fork+0x31/0x70 [ 2222.605349][ T253] ret_from_fork_asm+0x1a/0x30 [ 2222.605349][ T253] [ 2222.607682][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2222.607682][ T253] netdev_get_by_index+0x5e/0x80 [ 2222.607682][ T253] fib6_nh_init+0x3d8/0x1580 [ 2222.607682][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2222.607682][ T253] ip6_route_add+0x1c/0x140 [ 2222.607682][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2222.607682][ T253] inet6_addr_add+0x4f8/0xa40 [ 2222.607682][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2222.607682][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2222.607682][ T253] netlink_rcv_skb+0x130/0x360 [ 2222.607682][ T253] netlink_unicast+0x449/0x710 [ 2222.607682][ T253] netlink_sendmsg+0x723/0xbe0 [ 2222.607682][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2222.607682][ T253] ___sys_sendmsg+0xee/0x170 [ 2222.607682][ T253] __sys_sendmsg+0xcd/0x170 [ 2222.607682][ T253] do_syscall_64+0xc6/0x1e0 [ 2222.607682][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2222.607682][ T253] [ 2222.610181][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2222.610181][ T253] netdev_get_by_index+0x5e/0x80 [ 2222.610181][ T253] fib6_nh_init+0x3d8/0x1580 [ 2222.610181][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2222.610181][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2222.610181][ T253] ipv6_add_addr+0x411/0x2000 [ 2222.610181][ T253] inet6_addr_add+0x30e/0xa40 [ 2222.610181][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2222.610181][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2222.610181][ T253] netlink_rcv_skb+0x130/0x360 [ 2222.610181][ T253] netlink_unicast+0x449/0x710 [ 2222.610181][ T253] netlink_sendmsg+0x723/0xbe0 [ 2222.610181][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2222.610181][ T253] ___sys_sendmsg+0xee/0x170 [ 2222.610181][ T253] __sys_sendmsg+0xcd/0x170 [ 2222.610181][ T253] do_syscall_64+0xc6/0x1e0 [ 2222.610181][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2222.610181][ T253] [ 2222.612657][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2222.612657][ T253] netdev_get_by_index+0x5e/0x80 [ 2222.612657][ T253] fib6_nh_init+0x3d8/0x1580 [ 2222.612657][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2222.612657][ T253] ip6_route_add+0x1c/0x140 [ 2222.612657][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2222.612657][ T253] addrconf_add_dev+0xe2/0x170 [ 2222.612657][ T253] inet6_addr_add+0x12f/0xa40 [ 2222.612657][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2222.612657][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2222.612657][ T253] netlink_rcv_skb+0x130/0x360 [ 2222.612657][ T253] netlink_unicast+0x449/0x710 [ 2222.612657][ T253] netlink_sendmsg+0x723/0xbe0 [ 2222.612657][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2222.612657][ T253] ___sys_sendmsg+0xee/0x170 [ 2222.612657][ T253] __sys_sendmsg+0xcd/0x170 [ 2222.612657][ T253] do_syscall_64+0xc6/0x1e0 [ 2222.612657][ T253] [ 2222.615076][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2222.615076][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2222.615076][ T253] ipv6_find_idev+0x102/0x170 [ 2222.615076][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2222.615076][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2222.615076][ T253] netlink_rcv_skb+0x130/0x360 [ 2222.615076][ T253] netlink_unicast+0x449/0x710 [ 2222.615076][ T253] netlink_sendmsg+0x723/0xbe0 [ 2222.615076][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2222.615076][ T253] ___sys_sendmsg+0xee/0x170 [ 2222.615076][ T253] __sys_sendmsg+0xcd/0x170 [ 2222.615076][ T253] do_syscall_64+0xc6/0x1e0 [ 2222.615076][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2222.615076][ T253] [ 2222.616952][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2222.616952][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2222.616952][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2222.616952][ T253] ipv6_find_idev+0x102/0x170 [ 2222.616952][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2222.616952][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2222.616952][ T253] netlink_rcv_skb+0x130/0x360 [ 2222.616952][ T253] netlink_unicast+0x449/0x710 [ 2222.616952][ T253] netlink_sendmsg+0x723/0xbe0 [ 2222.616952][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2222.616952][ T253] ___sys_sendmsg+0xee/0x170 [ 2222.616952][ T253] __sys_sendmsg+0xcd/0x170 [ 2222.616952][ T253] do_syscall_64+0xc6/0x1e0 [ 2222.616952][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2222.616952][ T253] [ 2232.866328][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2232.866884][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2232.866884][ T253] dst_init+0x84/0x4a0 [ 2232.866884][ T253] dst_alloc+0x97/0x150 [ 2232.866884][ T253] ip6_dst_alloc+0x23/0x90 [ 2232.866884][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2232.866884][ T253] ip6_pol_route+0x56f/0x840 [ 2232.866884][ T253] fib6_rule_lookup+0x334/0x630 [ 2232.866884][ T253] ip6_route_output_flags+0x259/0x480 [ 2232.866884][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2232.866884][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2232.866884][ T253] netlink_rcv_skb+0x130/0x360 [ 2232.866884][ T253] netlink_unicast+0x449/0x710 [ 2232.866884][ T253] netlink_sendmsg+0x723/0xbe0 [ 2232.866884][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2232.866884][ T253] ___sys_sendmsg+0xee/0x170 [ 2232.866884][ T253] __sys_sendmsg+0xcd/0x170 [ 2232.866884][ T253] do_syscall_64+0xc6/0x1e0 [ 2232.866884][ T253] [ 2232.869125][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2232.869125][ T253] netdev_get_by_index+0x5e/0x80 [ 2232.869125][ T253] fib6_nh_init+0x3d8/0x1580 [ 2232.869125][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2232.869125][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2232.869125][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2232.869125][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2232.869125][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2232.869125][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2232.869125][ T253] addrconf_dad_begin+0x310/0x670 [ 2232.869125][ T253] addrconf_dad_work+0x10b/0xab0 [ 2232.869125][ T253] process_one_work+0x84d/0x18a0 [ 2232.869125][ T253] worker_thread+0x587/0xd30 [ 2232.869125][ T253] kthread+0x28a/0x350 [ 2232.869125][ T253] ret_from_fork+0x31/0x70 [ 2232.869125][ T253] ret_from_fork_asm+0x1a/0x30 [ 2232.869125][ T253] [ 2232.871298][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2232.871298][ T253] netdev_get_by_index+0x5e/0x80 [ 2232.871298][ T253] fib6_nh_init+0x3d8/0x1580 [ 2232.871298][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2232.871298][ T253] ip6_route_add+0x1c/0x140 [ 2232.871298][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2232.871298][ T253] inet6_addr_add+0x4f8/0xa40 [ 2232.871298][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2232.871298][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2232.871298][ T253] netlink_rcv_skb+0x130/0x360 [ 2232.871298][ T253] netlink_unicast+0x449/0x710 [ 2232.871298][ T253] netlink_sendmsg+0x723/0xbe0 [ 2232.871298][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2232.871298][ T253] ___sys_sendmsg+0xee/0x170 [ 2232.871298][ T253] __sys_sendmsg+0xcd/0x170 [ 2232.871298][ T253] do_syscall_64+0xc6/0x1e0 [ 2232.871298][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2232.871298][ T253] [ 2232.873587][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2232.873587][ T253] netdev_get_by_index+0x5e/0x80 [ 2232.873587][ T253] fib6_nh_init+0x3d8/0x1580 [ 2232.873587][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2232.873587][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2232.873587][ T253] ipv6_add_addr+0x411/0x2000 [ 2232.873587][ T253] inet6_addr_add+0x30e/0xa40 [ 2232.873587][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2232.873587][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2232.873587][ T253] netlink_rcv_skb+0x130/0x360 [ 2232.873587][ T253] netlink_unicast+0x449/0x710 [ 2232.873587][ T253] netlink_sendmsg+0x723/0xbe0 [ 2232.873587][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2232.873587][ T253] ___sys_sendmsg+0xee/0x170 [ 2232.873587][ T253] __sys_sendmsg+0xcd/0x170 [ 2232.873587][ T253] do_syscall_64+0xc6/0x1e0 [ 2232.873587][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2232.873587][ T253] [ 2232.875862][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2232.875862][ T253] netdev_get_by_index+0x5e/0x80 [ 2232.875862][ T253] fib6_nh_init+0x3d8/0x1580 [ 2232.875862][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2232.875862][ T253] ip6_route_add+0x1c/0x140 [ 2232.875862][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2232.875862][ T253] addrconf_add_dev+0xe2/0x170 [ 2232.875862][ T253] inet6_addr_add+0x12f/0xa40 [ 2232.875862][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2232.875862][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2232.875862][ T253] netlink_rcv_skb+0x130/0x360 [ 2232.875862][ T253] netlink_unicast+0x449/0x710 [ 2232.875862][ T253] netlink_sendmsg+0x723/0xbe0 [ 2232.875862][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2232.875862][ T253] ___sys_sendmsg+0xee/0x170 [ 2232.875862][ T253] __sys_sendmsg+0xcd/0x170 [ 2232.875862][ T253] do_syscall_64+0xc6/0x1e0 [ 2232.875862][ T253] [ 2232.878100][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2232.878100][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2232.878100][ T253] ipv6_find_idev+0x102/0x170 [ 2232.878100][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2232.878100][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2232.878100][ T253] netlink_rcv_skb+0x130/0x360 [ 2232.878100][ T253] netlink_unicast+0x449/0x710 [ 2232.878100][ T253] netlink_sendmsg+0x723/0xbe0 [ 2232.878100][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2232.878100][ T253] ___sys_sendmsg+0xee/0x170 [ 2232.878100][ T253] __sys_sendmsg+0xcd/0x170 [ 2232.878100][ T253] do_syscall_64+0xc6/0x1e0 [ 2232.878100][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2232.878100][ T253] [ 2232.879864][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2232.879864][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2232.879864][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2232.879864][ T253] ipv6_find_idev+0x102/0x170 [ 2232.879864][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2232.879864][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2232.879864][ T253] netlink_rcv_skb+0x130/0x360 [ 2232.879864][ T253] netlink_unicast+0x449/0x710 [ 2232.879864][ T253] netlink_sendmsg+0x723/0xbe0 [ 2232.879864][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2232.879864][ T253] ___sys_sendmsg+0xee/0x170 [ 2232.879864][ T253] __sys_sendmsg+0xcd/0x170 [ 2232.879864][ T253] do_syscall_64+0xc6/0x1e0 [ 2232.879864][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2232.879864][ T253] [ 2242.930342][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2242.930870][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2242.930870][ T253] dst_init+0x84/0x4a0 [ 2242.930870][ T253] dst_alloc+0x97/0x150 [ 2242.930870][ T253] ip6_dst_alloc+0x23/0x90 [ 2242.930870][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2242.930870][ T253] ip6_pol_route+0x56f/0x840 [ 2242.930870][ T253] fib6_rule_lookup+0x334/0x630 [ 2242.930870][ T253] ip6_route_output_flags+0x259/0x480 [ 2242.930870][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2242.930870][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2242.930870][ T253] netlink_rcv_skb+0x130/0x360 [ 2242.930870][ T253] netlink_unicast+0x449/0x710 [ 2242.930870][ T253] netlink_sendmsg+0x723/0xbe0 [ 2242.930870][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2242.930870][ T253] ___sys_sendmsg+0xee/0x170 [ 2242.930870][ T253] __sys_sendmsg+0xcd/0x170 [ 2242.930870][ T253] do_syscall_64+0xc6/0x1e0 [ 2242.930870][ T253] [ 2242.933105][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2242.933105][ T253] netdev_get_by_index+0x5e/0x80 [ 2242.933105][ T253] fib6_nh_init+0x3d8/0x1580 [ 2242.933105][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2242.933105][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2242.933105][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2242.933105][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2242.933105][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2242.933105][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2242.933105][ T253] addrconf_dad_begin+0x310/0x670 [ 2242.933105][ T253] addrconf_dad_work+0x10b/0xab0 [ 2242.933105][ T253] process_one_work+0x84d/0x18a0 [ 2242.933105][ T253] worker_thread+0x587/0xd30 [ 2242.933105][ T253] kthread+0x28a/0x350 [ 2242.933105][ T253] ret_from_fork+0x31/0x70 [ 2242.933105][ T253] ret_from_fork_asm+0x1a/0x30 [ 2242.933105][ T253] [ 2242.935274][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2242.935274][ T253] netdev_get_by_index+0x5e/0x80 [ 2242.935274][ T253] fib6_nh_init+0x3d8/0x1580 [ 2242.935274][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2242.935274][ T253] ip6_route_add+0x1c/0x140 [ 2242.935274][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2242.935274][ T253] inet6_addr_add+0x4f8/0xa40 [ 2242.935274][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2242.935274][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2242.935274][ T253] netlink_rcv_skb+0x130/0x360 [ 2242.935274][ T253] netlink_unicast+0x449/0x710 [ 2242.935274][ T253] netlink_sendmsg+0x723/0xbe0 [ 2242.935274][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2242.935274][ T253] ___sys_sendmsg+0xee/0x170 [ 2242.935274][ T253] __sys_sendmsg+0xcd/0x170 [ 2242.935274][ T253] do_syscall_64+0xc6/0x1e0 [ 2242.935274][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2242.935274][ T253] [ 2242.937533][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2242.937533][ T253] netdev_get_by_index+0x5e/0x80 [ 2242.937533][ T253] fib6_nh_init+0x3d8/0x1580 [ 2242.937533][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2242.937533][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2242.937533][ T253] ipv6_add_addr+0x411/0x2000 [ 2242.937533][ T253] inet6_addr_add+0x30e/0xa40 [ 2242.937533][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2242.937533][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2242.937533][ T253] netlink_rcv_skb+0x130/0x360 [ 2242.937533][ T253] netlink_unicast+0x449/0x710 [ 2242.937533][ T253] netlink_sendmsg+0x723/0xbe0 [ 2242.937533][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2242.937533][ T253] ___sys_sendmsg+0xee/0x170 [ 2242.937533][ T253] __sys_sendmsg+0xcd/0x170 [ 2242.937533][ T253] do_syscall_64+0xc6/0x1e0 [ 2242.937533][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2242.937533][ T253] [ 2242.939812][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2242.939812][ T253] netdev_get_by_index+0x5e/0x80 [ 2242.939812][ T253] fib6_nh_init+0x3d8/0x1580 [ 2242.939812][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2242.939812][ T253] ip6_route_add+0x1c/0x140 [ 2242.939812][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2242.939812][ T253] addrconf_add_dev+0xe2/0x170 [ 2242.939812][ T253] inet6_addr_add+0x12f/0xa40 [ 2242.939812][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2242.939812][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2242.939812][ T253] netlink_rcv_skb+0x130/0x360 [ 2242.939812][ T253] netlink_unicast+0x449/0x710 [ 2242.939812][ T253] netlink_sendmsg+0x723/0xbe0 [ 2242.939812][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2242.939812][ T253] ___sys_sendmsg+0xee/0x170 [ 2242.939812][ T253] __sys_sendmsg+0xcd/0x170 [ 2242.939812][ T253] do_syscall_64+0xc6/0x1e0 [ 2242.939812][ T253] [ 2242.942047][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2242.942047][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2242.942047][ T253] ipv6_find_idev+0x102/0x170 [ 2242.942047][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2242.942047][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2242.942047][ T253] netlink_rcv_skb+0x130/0x360 [ 2242.942047][ T253] netlink_unicast+0x449/0x710 [ 2242.942047][ T253] netlink_sendmsg+0x723/0xbe0 [ 2242.942047][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2242.942047][ T253] ___sys_sendmsg+0xee/0x170 [ 2242.942047][ T253] __sys_sendmsg+0xcd/0x170 [ 2242.942047][ T253] do_syscall_64+0xc6/0x1e0 [ 2242.942047][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2242.942047][ T253] [ 2242.943801][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2242.943801][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2242.943801][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2242.943801][ T253] ipv6_find_idev+0x102/0x170 [ 2242.943801][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2242.943801][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2242.943801][ T253] netlink_rcv_skb+0x130/0x360 [ 2242.943801][ T253] netlink_unicast+0x449/0x710 [ 2242.943801][ T253] netlink_sendmsg+0x723/0xbe0 [ 2242.943801][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2242.943801][ T253] ___sys_sendmsg+0xee/0x170 [ 2242.943801][ T253] __sys_sendmsg+0xcd/0x170 [ 2242.943801][ T253] do_syscall_64+0xc6/0x1e0 [ 2242.943801][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2242.943801][ T253] [ 2253.186301][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2253.186765][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2253.186765][ T253] dst_init+0x84/0x4a0 [ 2253.186765][ T253] dst_alloc+0x97/0x150 [ 2253.186765][ T253] ip6_dst_alloc+0x23/0x90 [ 2253.186765][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2253.186765][ T253] ip6_pol_route+0x56f/0x840 [ 2253.186765][ T253] fib6_rule_lookup+0x334/0x630 [ 2253.186765][ T253] ip6_route_output_flags+0x259/0x480 [ 2253.186765][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2253.186765][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2253.186765][ T253] netlink_rcv_skb+0x130/0x360 [ 2253.186765][ T253] netlink_unicast+0x449/0x710 [ 2253.186765][ T253] netlink_sendmsg+0x723/0xbe0 [ 2253.186765][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2253.186765][ T253] ___sys_sendmsg+0xee/0x170 [ 2253.186765][ T253] __sys_sendmsg+0xcd/0x170 [ 2253.186765][ T253] do_syscall_64+0xc6/0x1e0 [ 2253.186765][ T253] [ 2253.189329][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2253.189329][ T253] netdev_get_by_index+0x5e/0x80 [ 2253.189329][ T253] fib6_nh_init+0x3d8/0x1580 [ 2253.189329][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2253.189329][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2253.189329][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2253.189329][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2253.189329][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2253.189329][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2253.189329][ T253] addrconf_dad_begin+0x310/0x670 [ 2253.189329][ T253] addrconf_dad_work+0x10b/0xab0 [ 2253.189329][ T253] process_one_work+0x84d/0x18a0 [ 2253.189329][ T253] worker_thread+0x587/0xd30 [ 2253.189329][ T253] kthread+0x28a/0x350 [ 2253.189329][ T253] ret_from_fork+0x31/0x70 [ 2253.189329][ T253] ret_from_fork_asm+0x1a/0x30 [ 2253.189329][ T253] [ 2253.191520][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2253.191520][ T253] netdev_get_by_index+0x5e/0x80 [ 2253.191520][ T253] fib6_nh_init+0x3d8/0x1580 [ 2253.191520][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2253.191520][ T253] ip6_route_add+0x1c/0x140 [ 2253.191520][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2253.191520][ T253] inet6_addr_add+0x4f8/0xa40 [ 2253.191520][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2253.191520][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2253.191520][ T253] netlink_rcv_skb+0x130/0x360 [ 2253.191520][ T253] netlink_unicast+0x449/0x710 [ 2253.191520][ T253] netlink_sendmsg+0x723/0xbe0 [ 2253.191520][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2253.191520][ T253] ___sys_sendmsg+0xee/0x170 [ 2253.191520][ T253] __sys_sendmsg+0xcd/0x170 [ 2253.191520][ T253] do_syscall_64+0xc6/0x1e0 [ 2253.191520][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2253.191520][ T253] [ 2253.193801][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2253.193801][ T253] netdev_get_by_index+0x5e/0x80 [ 2253.193801][ T253] fib6_nh_init+0x3d8/0x1580 [ 2253.193801][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2253.193801][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2253.193801][ T253] ipv6_add_addr+0x411/0x2000 [ 2253.193801][ T253] inet6_addr_add+0x30e/0xa40 [ 2253.193801][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2253.193801][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2253.193801][ T253] netlink_rcv_skb+0x130/0x360 [ 2253.193801][ T253] netlink_unicast+0x449/0x710 [ 2253.193801][ T253] netlink_sendmsg+0x723/0xbe0 [ 2253.193801][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2253.193801][ T253] ___sys_sendmsg+0xee/0x170 [ 2253.193801][ T253] __sys_sendmsg+0xcd/0x170 [ 2253.193801][ T253] do_syscall_64+0xc6/0x1e0 [ 2253.193801][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2253.193801][ T253] [ 2253.196069][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2253.196069][ T253] netdev_get_by_index+0x5e/0x80 [ 2253.196069][ T253] fib6_nh_init+0x3d8/0x1580 [ 2253.196069][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2253.196069][ T253] ip6_route_add+0x1c/0x140 [ 2253.196069][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2253.196069][ T253] addrconf_add_dev+0xe2/0x170 [ 2253.196069][ T253] inet6_addr_add+0x12f/0xa40 [ 2253.196069][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2253.196069][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2253.196069][ T253] netlink_rcv_skb+0x130/0x360 [ 2253.196069][ T253] netlink_unicast+0x449/0x710 [ 2253.196069][ T253] netlink_sendmsg+0x723/0xbe0 [ 2253.196069][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2253.196069][ T253] ___sys_sendmsg+0xee/0x170 [ 2253.196069][ T253] __sys_sendmsg+0xcd/0x170 [ 2253.196069][ T253] do_syscall_64+0xc6/0x1e0 [ 2253.196069][ T253] [ 2253.198323][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2253.198323][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2253.198323][ T253] ipv6_find_idev+0x102/0x170 [ 2253.198323][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2253.198323][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2253.198323][ T253] netlink_rcv_skb+0x130/0x360 [ 2253.198323][ T253] netlink_unicast+0x449/0x710 [ 2253.198323][ T253] netlink_sendmsg+0x723/0xbe0 [ 2253.198323][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2253.198323][ T253] ___sys_sendmsg+0xee/0x170 [ 2253.198323][ T253] __sys_sendmsg+0xcd/0x170 [ 2253.198323][ T253] do_syscall_64+0xc6/0x1e0 [ 2253.198323][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2253.198323][ T253] [ 2253.200092][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2253.200092][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2253.200092][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2253.200092][ T253] ipv6_find_idev+0x102/0x170 [ 2253.200092][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2253.200092][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2253.200092][ T253] netlink_rcv_skb+0x130/0x360 [ 2253.200092][ T253] netlink_unicast+0x449/0x710 [ 2253.200092][ T253] netlink_sendmsg+0x723/0xbe0 [ 2253.200092][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2253.200092][ T253] ___sys_sendmsg+0xee/0x170 [ 2253.200092][ T253] __sys_sendmsg+0xcd/0x170 [ 2253.200092][ T253] do_syscall_64+0xc6/0x1e0 [ 2253.200092][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2253.200092][ T253] [ 2263.442299][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2263.442718][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2263.442718][ T253] dst_init+0x84/0x4a0 [ 2263.442718][ T253] dst_alloc+0x97/0x150 [ 2263.442718][ T253] ip6_dst_alloc+0x23/0x90 [ 2263.442718][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2263.442718][ T253] ip6_pol_route+0x56f/0x840 [ 2263.442718][ T253] fib6_rule_lookup+0x334/0x630 [ 2263.442718][ T253] ip6_route_output_flags+0x259/0x480 [ 2263.442718][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2263.442718][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2263.442718][ T253] netlink_rcv_skb+0x130/0x360 [ 2263.442718][ T253] netlink_unicast+0x449/0x710 [ 2263.442718][ T253] netlink_sendmsg+0x723/0xbe0 [ 2263.442718][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2263.442718][ T253] ___sys_sendmsg+0xee/0x170 [ 2263.442718][ T253] __sys_sendmsg+0xcd/0x170 [ 2263.442718][ T253] do_syscall_64+0xc6/0x1e0 [ 2263.442718][ T253] [ 2263.444945][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2263.444945][ T253] netdev_get_by_index+0x5e/0x80 [ 2263.444945][ T253] fib6_nh_init+0x3d8/0x1580 [ 2263.444945][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2263.444945][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2263.444945][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2263.444945][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2263.444945][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2263.444945][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2263.444945][ T253] addrconf_dad_begin+0x310/0x670 [ 2263.444945][ T253] addrconf_dad_work+0x10b/0xab0 [ 2263.444945][ T253] process_one_work+0x84d/0x18a0 [ 2263.444945][ T253] worker_thread+0x587/0xd30 [ 2263.444945][ T253] kthread+0x28a/0x350 [ 2263.444945][ T253] ret_from_fork+0x31/0x70 [ 2263.444945][ T253] ret_from_fork_asm+0x1a/0x30 [ 2263.444945][ T253] [ 2263.447132][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2263.447132][ T253] netdev_get_by_index+0x5e/0x80 [ 2263.447132][ T253] fib6_nh_init+0x3d8/0x1580 [ 2263.447132][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2263.447132][ T253] ip6_route_add+0x1c/0x140 [ 2263.447132][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2263.447132][ T253] inet6_addr_add+0x4f8/0xa40 [ 2263.447132][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2263.447132][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2263.447132][ T253] netlink_rcv_skb+0x130/0x360 [ 2263.447132][ T253] netlink_unicast+0x449/0x710 [ 2263.447132][ T253] netlink_sendmsg+0x723/0xbe0 [ 2263.447132][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2263.447132][ T253] ___sys_sendmsg+0xee/0x170 [ 2263.447132][ T253] __sys_sendmsg+0xcd/0x170 [ 2263.447132][ T253] do_syscall_64+0xc6/0x1e0 [ 2263.447132][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2263.447132][ T253] [ 2263.449425][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2263.449425][ T253] netdev_get_by_index+0x5e/0x80 [ 2263.449425][ T253] fib6_nh_init+0x3d8/0x1580 [ 2263.449425][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2263.449425][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2263.449425][ T253] ipv6_add_addr+0x411/0x2000 [ 2263.449425][ T253] inet6_addr_add+0x30e/0xa40 [ 2263.449425][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2263.449425][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2263.449425][ T253] netlink_rcv_skb+0x130/0x360 [ 2263.449425][ T253] netlink_unicast+0x449/0x710 [ 2263.449425][ T253] netlink_sendmsg+0x723/0xbe0 [ 2263.449425][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2263.449425][ T253] ___sys_sendmsg+0xee/0x170 [ 2263.449425][ T253] __sys_sendmsg+0xcd/0x170 [ 2263.449425][ T253] do_syscall_64+0xc6/0x1e0 [ 2263.449425][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2263.449425][ T253] [ 2263.451697][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2263.451697][ T253] netdev_get_by_index+0x5e/0x80 [ 2263.451697][ T253] fib6_nh_init+0x3d8/0x1580 [ 2263.451697][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2263.451697][ T253] ip6_route_add+0x1c/0x140 [ 2263.451697][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2263.451697][ T253] addrconf_add_dev+0xe2/0x170 [ 2263.451697][ T253] inet6_addr_add+0x12f/0xa40 [ 2263.451697][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2263.451697][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2263.451697][ T253] netlink_rcv_skb+0x130/0x360 [ 2263.451697][ T253] netlink_unicast+0x449/0x710 [ 2263.451697][ T253] netlink_sendmsg+0x723/0xbe0 [ 2263.451697][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2263.451697][ T253] ___sys_sendmsg+0xee/0x170 [ 2263.451697][ T253] __sys_sendmsg+0xcd/0x170 [ 2263.451697][ T253] do_syscall_64+0xc6/0x1e0 [ 2263.451697][ T253] [ 2263.453941][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2263.453941][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2263.453941][ T253] ipv6_find_idev+0x102/0x170 [ 2263.453941][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2263.453941][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2263.453941][ T253] netlink_rcv_skb+0x130/0x360 [ 2263.453941][ T253] netlink_unicast+0x449/0x710 [ 2263.453941][ T253] netlink_sendmsg+0x723/0xbe0 [ 2263.453941][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2263.453941][ T253] ___sys_sendmsg+0xee/0x170 [ 2263.453941][ T253] __sys_sendmsg+0xcd/0x170 [ 2263.453941][ T253] do_syscall_64+0xc6/0x1e0 [ 2263.453941][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2263.453941][ T253] [ 2263.455688][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2263.455688][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2263.455688][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2263.455688][ T253] ipv6_find_idev+0x102/0x170 [ 2263.455688][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2263.455688][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2263.455688][ T253] netlink_rcv_skb+0x130/0x360 [ 2263.455688][ T253] netlink_unicast+0x449/0x710 [ 2263.455688][ T253] netlink_sendmsg+0x723/0xbe0 [ 2263.455688][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2263.455688][ T253] ___sys_sendmsg+0xee/0x170 [ 2263.455688][ T253] __sys_sendmsg+0xcd/0x170 [ 2263.455688][ T253] do_syscall_64+0xc6/0x1e0 [ 2263.455688][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2263.455688][ T253] [ 2273.554305][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2273.554713][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2273.554713][ T253] dst_init+0x84/0x4a0 [ 2273.554713][ T253] dst_alloc+0x97/0x150 [ 2273.554713][ T253] ip6_dst_alloc+0x23/0x90 [ 2273.554713][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2273.554713][ T253] ip6_pol_route+0x56f/0x840 [ 2273.554713][ T253] fib6_rule_lookup+0x334/0x630 [ 2273.554713][ T253] ip6_route_output_flags+0x259/0x480 [ 2273.554713][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2273.554713][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2273.554713][ T253] netlink_rcv_skb+0x130/0x360 [ 2273.554713][ T253] netlink_unicast+0x449/0x710 [ 2273.554713][ T253] netlink_sendmsg+0x723/0xbe0 [ 2273.554713][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2273.554713][ T253] ___sys_sendmsg+0xee/0x170 [ 2273.554713][ T253] __sys_sendmsg+0xcd/0x170 [ 2273.554713][ T253] do_syscall_64+0xc6/0x1e0 [ 2273.554713][ T253] [ 2273.556960][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2273.556960][ T253] netdev_get_by_index+0x5e/0x80 [ 2273.556960][ T253] fib6_nh_init+0x3d8/0x1580 [ 2273.556960][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2273.556960][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2273.556960][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2273.556960][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2273.556960][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2273.556960][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2273.556960][ T253] addrconf_dad_begin+0x310/0x670 [ 2273.556960][ T253] addrconf_dad_work+0x10b/0xab0 [ 2273.556960][ T253] process_one_work+0x84d/0x18a0 [ 2273.556960][ T253] worker_thread+0x587/0xd30 [ 2273.556960][ T253] kthread+0x28a/0x350 [ 2273.556960][ T253] ret_from_fork+0x31/0x70 [ 2273.556960][ T253] ret_from_fork_asm+0x1a/0x30 [ 2273.556960][ T253] [ 2273.559173][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2273.559173][ T253] netdev_get_by_index+0x5e/0x80 [ 2273.559173][ T253] fib6_nh_init+0x3d8/0x1580 [ 2273.559173][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2273.559173][ T253] ip6_route_add+0x1c/0x140 [ 2273.559173][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2273.559173][ T253] inet6_addr_add+0x4f8/0xa40 [ 2273.559173][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2273.559173][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2273.559173][ T253] netlink_rcv_skb+0x130/0x360 [ 2273.559173][ T253] netlink_unicast+0x449/0x710 [ 2273.559173][ T253] netlink_sendmsg+0x723/0xbe0 [ 2273.559173][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2273.559173][ T253] ___sys_sendmsg+0xee/0x170 [ 2273.559173][ T253] __sys_sendmsg+0xcd/0x170 [ 2273.559173][ T253] do_syscall_64+0xc6/0x1e0 [ 2273.559173][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2273.559173][ T253] [ 2273.561437][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2273.561437][ T253] netdev_get_by_index+0x5e/0x80 [ 2273.561437][ T253] fib6_nh_init+0x3d8/0x1580 [ 2273.561437][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2273.561437][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2273.561437][ T253] ipv6_add_addr+0x411/0x2000 [ 2273.561437][ T253] inet6_addr_add+0x30e/0xa40 [ 2273.561437][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2273.561437][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2273.561437][ T253] netlink_rcv_skb+0x130/0x360 [ 2273.561437][ T253] netlink_unicast+0x449/0x710 [ 2273.561437][ T253] netlink_sendmsg+0x723/0xbe0 [ 2273.561437][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2273.561437][ T253] ___sys_sendmsg+0xee/0x170 [ 2273.561437][ T253] __sys_sendmsg+0xcd/0x170 [ 2273.561437][ T253] do_syscall_64+0xc6/0x1e0 [ 2273.561437][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2273.561437][ T253] [ 2273.563698][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2273.563698][ T253] netdev_get_by_index+0x5e/0x80 [ 2273.563698][ T253] fib6_nh_init+0x3d8/0x1580 [ 2273.563698][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2273.563698][ T253] ip6_route_add+0x1c/0x140 [ 2273.563698][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2273.563698][ T253] addrconf_add_dev+0xe2/0x170 [ 2273.563698][ T253] inet6_addr_add+0x12f/0xa40 [ 2273.563698][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2273.563698][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2273.563698][ T253] netlink_rcv_skb+0x130/0x360 [ 2273.563698][ T253] netlink_unicast+0x449/0x710 [ 2273.563698][ T253] netlink_sendmsg+0x723/0xbe0 [ 2273.563698][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2273.563698][ T253] ___sys_sendmsg+0xee/0x170 [ 2273.563698][ T253] __sys_sendmsg+0xcd/0x170 [ 2273.563698][ T253] do_syscall_64+0xc6/0x1e0 [ 2273.563698][ T253] [ 2273.565917][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2273.565917][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2273.565917][ T253] ipv6_find_idev+0x102/0x170 [ 2273.565917][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2273.565917][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2273.565917][ T253] netlink_rcv_skb+0x130/0x360 [ 2273.565917][ T253] netlink_unicast+0x449/0x710 [ 2273.565917][ T253] netlink_sendmsg+0x723/0xbe0 [ 2273.565917][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2273.565917][ T253] ___sys_sendmsg+0xee/0x170 [ 2273.565917][ T253] __sys_sendmsg+0xcd/0x170 [ 2273.565917][ T253] do_syscall_64+0xc6/0x1e0 [ 2273.565917][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2273.565917][ T253] [ 2273.567654][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2273.567654][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2273.567654][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2273.567654][ T253] ipv6_find_idev+0x102/0x170 [ 2273.567654][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2273.567654][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2273.567654][ T253] netlink_rcv_skb+0x130/0x360 [ 2273.567654][ T253] netlink_unicast+0x449/0x710 [ 2273.567654][ T253] netlink_sendmsg+0x723/0xbe0 [ 2273.567654][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2273.567654][ T253] ___sys_sendmsg+0xee/0x170 [ 2273.567654][ T253] __sys_sendmsg+0xcd/0x170 [ 2273.567654][ T253] do_syscall_64+0xc6/0x1e0 [ 2273.567654][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2273.567654][ T253] [ 2283.666334][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2283.666752][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2283.666752][ T253] dst_init+0x84/0x4a0 [ 2283.666752][ T253] dst_alloc+0x97/0x150 [ 2283.666752][ T253] ip6_dst_alloc+0x23/0x90 [ 2283.666752][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2283.666752][ T253] ip6_pol_route+0x56f/0x840 [ 2283.666752][ T253] fib6_rule_lookup+0x334/0x630 [ 2283.666752][ T253] ip6_route_output_flags+0x259/0x480 [ 2283.666752][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2283.666752][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2283.666752][ T253] netlink_rcv_skb+0x130/0x360 [ 2283.666752][ T253] netlink_unicast+0x449/0x710 [ 2283.666752][ T253] netlink_sendmsg+0x723/0xbe0 [ 2283.666752][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2283.666752][ T253] ___sys_sendmsg+0xee/0x170 [ 2283.666752][ T253] __sys_sendmsg+0xcd/0x170 [ 2283.666752][ T253] do_syscall_64+0xc6/0x1e0 [ 2283.666752][ T253] [ 2283.668997][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2283.668997][ T253] netdev_get_by_index+0x5e/0x80 [ 2283.668997][ T253] fib6_nh_init+0x3d8/0x1580 [ 2283.668997][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2283.668997][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2283.668997][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2283.668997][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2283.668997][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2283.668997][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2283.668997][ T253] addrconf_dad_begin+0x310/0x670 [ 2283.668997][ T253] addrconf_dad_work+0x10b/0xab0 [ 2283.668997][ T253] process_one_work+0x84d/0x18a0 [ 2283.668997][ T253] worker_thread+0x587/0xd30 [ 2283.668997][ T253] kthread+0x28a/0x350 [ 2283.668997][ T253] ret_from_fork+0x31/0x70 [ 2283.668997][ T253] ret_from_fork_asm+0x1a/0x30 [ 2283.668997][ T253] [ 2283.671167][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2283.671167][ T253] netdev_get_by_index+0x5e/0x80 [ 2283.671167][ T253] fib6_nh_init+0x3d8/0x1580 [ 2283.671167][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2283.671167][ T253] ip6_route_add+0x1c/0x140 [ 2283.671167][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2283.671167][ T253] inet6_addr_add+0x4f8/0xa40 [ 2283.671167][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2283.671167][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2283.671167][ T253] netlink_rcv_skb+0x130/0x360 [ 2283.671167][ T253] netlink_unicast+0x449/0x710 [ 2283.671167][ T253] netlink_sendmsg+0x723/0xbe0 [ 2283.671167][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2283.671167][ T253] ___sys_sendmsg+0xee/0x170 [ 2283.671167][ T253] __sys_sendmsg+0xcd/0x170 [ 2283.671167][ T253] do_syscall_64+0xc6/0x1e0 [ 2283.671167][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2283.671167][ T253] [ 2283.673433][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2283.673433][ T253] netdev_get_by_index+0x5e/0x80 [ 2283.673433][ T253] fib6_nh_init+0x3d8/0x1580 [ 2283.673433][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2283.673433][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2283.673433][ T253] ipv6_add_addr+0x411/0x2000 [ 2283.673433][ T253] inet6_addr_add+0x30e/0xa40 [ 2283.673433][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2283.673433][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2283.673433][ T253] netlink_rcv_skb+0x130/0x360 [ 2283.673433][ T253] netlink_unicast+0x449/0x710 [ 2283.673433][ T253] netlink_sendmsg+0x723/0xbe0 [ 2283.673433][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2283.673433][ T253] ___sys_sendmsg+0xee/0x170 [ 2283.673433][ T253] __sys_sendmsg+0xcd/0x170 [ 2283.673433][ T253] do_syscall_64+0xc6/0x1e0 [ 2283.673433][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2283.673433][ T253] [ 2283.675702][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2283.675702][ T253] netdev_get_by_index+0x5e/0x80 [ 2283.675702][ T253] fib6_nh_init+0x3d8/0x1580 [ 2283.675702][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2283.675702][ T253] ip6_route_add+0x1c/0x140 [ 2283.675702][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2283.675702][ T253] addrconf_add_dev+0xe2/0x170 [ 2283.675702][ T253] inet6_addr_add+0x12f/0xa40 [ 2283.675702][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2283.675702][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2283.675702][ T253] netlink_rcv_skb+0x130/0x360 [ 2283.675702][ T253] netlink_unicast+0x449/0x710 [ 2283.675702][ T253] netlink_sendmsg+0x723/0xbe0 [ 2283.675702][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2283.675702][ T253] ___sys_sendmsg+0xee/0x170 [ 2283.675702][ T253] __sys_sendmsg+0xcd/0x170 [ 2283.675702][ T253] do_syscall_64+0xc6/0x1e0 [ 2283.675702][ T253] [ 2283.677917][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2283.677917][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2283.677917][ T253] ipv6_find_idev+0x102/0x170 [ 2283.677917][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2283.677917][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2283.677917][ T253] netlink_rcv_skb+0x130/0x360 [ 2283.677917][ T253] netlink_unicast+0x449/0x710 [ 2283.677917][ T253] netlink_sendmsg+0x723/0xbe0 [ 2283.677917][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2283.677917][ T253] ___sys_sendmsg+0xee/0x170 [ 2283.677917][ T253] __sys_sendmsg+0xcd/0x170 [ 2283.677917][ T253] do_syscall_64+0xc6/0x1e0 [ 2283.677917][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2283.677917][ T253] [ 2283.679679][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2283.679679][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2283.679679][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2283.679679][ T253] ipv6_find_idev+0x102/0x170 [ 2283.679679][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2283.679679][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2283.679679][ T253] netlink_rcv_skb+0x130/0x360 [ 2283.679679][ T253] netlink_unicast+0x449/0x710 [ 2283.679679][ T253] netlink_sendmsg+0x723/0xbe0 [ 2283.679679][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2283.679679][ T253] ___sys_sendmsg+0xee/0x170 [ 2283.679679][ T253] __sys_sendmsg+0xcd/0x170 [ 2283.679679][ T253] do_syscall_64+0xc6/0x1e0 [ 2283.679679][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2283.679679][ T253] [ 2293.922290][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2293.922840][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2293.922840][ T253] dst_init+0x84/0x4a0 [ 2293.922840][ T253] dst_alloc+0x97/0x150 [ 2293.922840][ T253] ip6_dst_alloc+0x23/0x90 [ 2293.922840][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2293.922840][ T253] ip6_pol_route+0x56f/0x840 [ 2293.922840][ T253] fib6_rule_lookup+0x334/0x630 [ 2293.922840][ T253] ip6_route_output_flags+0x259/0x480 [ 2293.922840][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2293.922840][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2293.922840][ T253] netlink_rcv_skb+0x130/0x360 [ 2293.922840][ T253] netlink_unicast+0x449/0x710 [ 2293.922840][ T253] netlink_sendmsg+0x723/0xbe0 [ 2293.922840][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2293.922840][ T253] ___sys_sendmsg+0xee/0x170 [ 2293.922840][ T253] __sys_sendmsg+0xcd/0x170 [ 2293.922840][ T253] do_syscall_64+0xc6/0x1e0 [ 2293.922840][ T253] [ 2293.925340][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2293.925340][ T253] netdev_get_by_index+0x5e/0x80 [ 2293.925340][ T253] fib6_nh_init+0x3d8/0x1580 [ 2293.925340][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2293.925340][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2293.925340][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2293.925340][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2293.925340][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2293.925340][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2293.925340][ T253] addrconf_dad_begin+0x310/0x670 [ 2293.925340][ T253] addrconf_dad_work+0x10b/0xab0 [ 2293.925340][ T253] process_one_work+0x84d/0x18a0 [ 2293.925340][ T253] worker_thread+0x587/0xd30 [ 2293.925340][ T253] kthread+0x28a/0x350 [ 2293.925340][ T253] ret_from_fork+0x31/0x70 [ 2293.925340][ T253] ret_from_fork_asm+0x1a/0x30 [ 2293.925340][ T253] [ 2293.927780][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2293.927780][ T253] netdev_get_by_index+0x5e/0x80 [ 2293.927780][ T253] fib6_nh_init+0x3d8/0x1580 [ 2293.927780][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2293.927780][ T253] ip6_route_add+0x1c/0x140 [ 2293.927780][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2293.927780][ T253] inet6_addr_add+0x4f8/0xa40 [ 2293.927780][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2293.927780][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2293.927780][ T253] netlink_rcv_skb+0x130/0x360 [ 2293.927780][ T253] netlink_unicast+0x449/0x710 [ 2293.927780][ T253] netlink_sendmsg+0x723/0xbe0 [ 2293.927780][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2293.927780][ T253] ___sys_sendmsg+0xee/0x170 [ 2293.927780][ T253] __sys_sendmsg+0xcd/0x170 [ 2293.927780][ T253] do_syscall_64+0xc6/0x1e0 [ 2293.927780][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2293.927780][ T253] [ 2293.930303][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2293.930303][ T253] netdev_get_by_index+0x5e/0x80 [ 2293.930303][ T253] fib6_nh_init+0x3d8/0x1580 [ 2293.930303][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2293.930303][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2293.930303][ T253] ipv6_add_addr+0x411/0x2000 [ 2293.930303][ T253] inet6_addr_add+0x30e/0xa40 [ 2293.930303][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2293.930303][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2293.930303][ T253] netlink_rcv_skb+0x130/0x360 [ 2293.930303][ T253] netlink_unicast+0x449/0x710 [ 2293.930303][ T253] netlink_sendmsg+0x723/0xbe0 [ 2293.930303][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2293.930303][ T253] ___sys_sendmsg+0xee/0x170 [ 2293.930303][ T253] __sys_sendmsg+0xcd/0x170 [ 2293.930303][ T253] do_syscall_64+0xc6/0x1e0 [ 2293.930303][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2293.930303][ T253] [ 2293.933401][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2293.933401][ T253] netdev_get_by_index+0x5e/0x80 [ 2293.933401][ T253] fib6_nh_init+0x3d8/0x1580 [ 2293.933401][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2293.933401][ T253] ip6_route_add+0x1c/0x140 [ 2293.933401][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2293.933401][ T253] addrconf_add_dev+0xe2/0x170 [ 2293.933401][ T253] inet6_addr_add+0x12f/0xa40 [ 2293.933401][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2293.933401][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2293.933401][ T253] netlink_rcv_skb+0x130/0x360 [ 2293.933401][ T253] netlink_unicast+0x449/0x710 [ 2293.933401][ T253] netlink_sendmsg+0x723/0xbe0 [ 2293.933401][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2293.933401][ T253] ___sys_sendmsg+0xee/0x170 [ 2293.933401][ T253] __sys_sendmsg+0xcd/0x170 [ 2293.933401][ T253] do_syscall_64+0xc6/0x1e0 [ 2293.933401][ T253] [ 2293.935880][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2293.935880][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2293.935880][ T253] ipv6_find_idev+0x102/0x170 [ 2293.935880][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2293.935880][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2293.935880][ T253] netlink_rcv_skb+0x130/0x360 [ 2293.935880][ T253] netlink_unicast+0x449/0x710 [ 2293.935880][ T253] netlink_sendmsg+0x723/0xbe0 [ 2293.935880][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2293.935880][ T253] ___sys_sendmsg+0xee/0x170 [ 2293.935880][ T253] __sys_sendmsg+0xcd/0x170 [ 2293.935880][ T253] do_syscall_64+0xc6/0x1e0 [ 2293.935880][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2293.935880][ T253] [ 2293.937847][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2293.937847][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2293.937847][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2293.937847][ T253] ipv6_find_idev+0x102/0x170 [ 2293.937847][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2293.937847][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2293.937847][ T253] netlink_rcv_skb+0x130/0x360 [ 2293.937847][ T253] netlink_unicast+0x449/0x710 [ 2293.937847][ T253] netlink_sendmsg+0x723/0xbe0 [ 2293.937847][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2293.937847][ T253] ___sys_sendmsg+0xee/0x170 [ 2293.937847][ T253] __sys_sendmsg+0xcd/0x170 [ 2293.937847][ T253] do_syscall_64+0xc6/0x1e0 [ 2293.937847][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2293.937847][ T253] [ 2304.178300][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2304.178805][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2304.178805][ T253] dst_init+0x84/0x4a0 [ 2304.178805][ T253] dst_alloc+0x97/0x150 [ 2304.178805][ T253] ip6_dst_alloc+0x23/0x90 [ 2304.178805][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2304.178805][ T253] ip6_pol_route+0x56f/0x840 [ 2304.178805][ T253] fib6_rule_lookup+0x334/0x630 [ 2304.178805][ T253] ip6_route_output_flags+0x259/0x480 [ 2304.178805][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2304.178805][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2304.178805][ T253] netlink_rcv_skb+0x130/0x360 [ 2304.178805][ T253] netlink_unicast+0x449/0x710 [ 2304.178805][ T253] netlink_sendmsg+0x723/0xbe0 [ 2304.178805][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2304.178805][ T253] ___sys_sendmsg+0xee/0x170 [ 2304.178805][ T253] __sys_sendmsg+0xcd/0x170 [ 2304.178805][ T253] do_syscall_64+0xc6/0x1e0 [ 2304.178805][ T253] [ 2304.181043][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2304.181043][ T253] netdev_get_by_index+0x5e/0x80 [ 2304.181043][ T253] fib6_nh_init+0x3d8/0x1580 [ 2304.181043][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2304.181043][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2304.181043][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2304.181043][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2304.181043][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2304.181043][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2304.181043][ T253] addrconf_dad_begin+0x310/0x670 [ 2304.181043][ T253] addrconf_dad_work+0x10b/0xab0 [ 2304.181043][ T253] process_one_work+0x84d/0x18a0 [ 2304.181043][ T253] worker_thread+0x587/0xd30 [ 2304.181043][ T253] kthread+0x28a/0x350 [ 2304.181043][ T253] ret_from_fork+0x31/0x70 [ 2304.181043][ T253] ret_from_fork_asm+0x1a/0x30 [ 2304.181043][ T253] [ 2304.183214][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2304.183214][ T253] netdev_get_by_index+0x5e/0x80 [ 2304.183214][ T253] fib6_nh_init+0x3d8/0x1580 [ 2304.183214][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2304.183214][ T253] ip6_route_add+0x1c/0x140 [ 2304.183214][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2304.183214][ T253] inet6_addr_add+0x4f8/0xa40 [ 2304.183214][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2304.183214][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2304.183214][ T253] netlink_rcv_skb+0x130/0x360 [ 2304.183214][ T253] netlink_unicast+0x449/0x710 [ 2304.183214][ T253] netlink_sendmsg+0x723/0xbe0 [ 2304.183214][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2304.183214][ T253] ___sys_sendmsg+0xee/0x170 [ 2304.183214][ T253] __sys_sendmsg+0xcd/0x170 [ 2304.183214][ T253] do_syscall_64+0xc6/0x1e0 [ 2304.183214][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2304.183214][ T253] [ 2304.185480][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2304.185480][ T253] netdev_get_by_index+0x5e/0x80 [ 2304.185480][ T253] fib6_nh_init+0x3d8/0x1580 [ 2304.185480][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2304.185480][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2304.185480][ T253] ipv6_add_addr+0x411/0x2000 [ 2304.185480][ T253] inet6_addr_add+0x30e/0xa40 [ 2304.185480][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2304.185480][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2304.185480][ T253] netlink_rcv_skb+0x130/0x360 [ 2304.185480][ T253] netlink_unicast+0x449/0x710 [ 2304.185480][ T253] netlink_sendmsg+0x723/0xbe0 [ 2304.185480][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2304.185480][ T253] ___sys_sendmsg+0xee/0x170 [ 2304.185480][ T253] __sys_sendmsg+0xcd/0x170 [ 2304.185480][ T253] do_syscall_64+0xc6/0x1e0 [ 2304.185480][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2304.185480][ T253] [ 2304.187737][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2304.187737][ T253] netdev_get_by_index+0x5e/0x80 [ 2304.187737][ T253] fib6_nh_init+0x3d8/0x1580 [ 2304.187737][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2304.187737][ T253] ip6_route_add+0x1c/0x140 [ 2304.187737][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2304.187737][ T253] addrconf_add_dev+0xe2/0x170 [ 2304.187737][ T253] inet6_addr_add+0x12f/0xa40 [ 2304.187737][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2304.187737][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2304.187737][ T253] netlink_rcv_skb+0x130/0x360 [ 2304.187737][ T253] netlink_unicast+0x449/0x710 [ 2304.187737][ T253] netlink_sendmsg+0x723/0xbe0 [ 2304.187737][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2304.187737][ T253] ___sys_sendmsg+0xee/0x170 [ 2304.187737][ T253] __sys_sendmsg+0xcd/0x170 [ 2304.187737][ T253] do_syscall_64+0xc6/0x1e0 [ 2304.187737][ T253] [ 2304.190360][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2304.190360][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2304.190360][ T253] ipv6_find_idev+0x102/0x170 [ 2304.190360][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2304.190360][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2304.190360][ T253] netlink_rcv_skb+0x130/0x360 [ 2304.190360][ T253] netlink_unicast+0x449/0x710 [ 2304.190360][ T253] netlink_sendmsg+0x723/0xbe0 [ 2304.190360][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2304.190360][ T253] ___sys_sendmsg+0xee/0x170 [ 2304.190360][ T253] __sys_sendmsg+0xcd/0x170 [ 2304.190360][ T253] do_syscall_64+0xc6/0x1e0 [ 2304.190360][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2304.190360][ T253] [ 2304.192112][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2304.192112][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2304.192112][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2304.192112][ T253] ipv6_find_idev+0x102/0x170 [ 2304.192112][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2304.192112][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2304.192112][ T253] netlink_rcv_skb+0x130/0x360 [ 2304.192112][ T253] netlink_unicast+0x449/0x710 [ 2304.192112][ T253] netlink_sendmsg+0x723/0xbe0 [ 2304.192112][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2304.192112][ T253] ___sys_sendmsg+0xee/0x170 [ 2304.192112][ T253] __sys_sendmsg+0xcd/0x170 [ 2304.192112][ T253] do_syscall_64+0xc6/0x1e0 [ 2304.192112][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2304.192112][ T253] [ 2314.434310][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2314.434795][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2314.434795][ T253] dst_init+0x84/0x4a0 [ 2314.434795][ T253] dst_alloc+0x97/0x150 [ 2314.434795][ T253] ip6_dst_alloc+0x23/0x90 [ 2314.434795][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2314.434795][ T253] ip6_pol_route+0x56f/0x840 [ 2314.434795][ T253] fib6_rule_lookup+0x334/0x630 [ 2314.434795][ T253] ip6_route_output_flags+0x259/0x480 [ 2314.434795][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2314.434795][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2314.434795][ T253] netlink_rcv_skb+0x130/0x360 [ 2314.434795][ T253] netlink_unicast+0x449/0x710 [ 2314.434795][ T253] netlink_sendmsg+0x723/0xbe0 [ 2314.434795][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2314.434795][ T253] ___sys_sendmsg+0xee/0x170 [ 2314.434795][ T253] __sys_sendmsg+0xcd/0x170 [ 2314.434795][ T253] do_syscall_64+0xc6/0x1e0 [ 2314.434795][ T253] [ 2314.437008][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2314.437008][ T253] netdev_get_by_index+0x5e/0x80 [ 2314.437008][ T253] fib6_nh_init+0x3d8/0x1580 [ 2314.437008][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2314.437008][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2314.437008][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2314.437008][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2314.437008][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2314.437008][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2314.437008][ T253] addrconf_dad_begin+0x310/0x670 [ 2314.437008][ T253] addrconf_dad_work+0x10b/0xab0 [ 2314.437008][ T253] process_one_work+0x84d/0x18a0 [ 2314.437008][ T253] worker_thread+0x587/0xd30 [ 2314.437008][ T253] kthread+0x28a/0x350 [ 2314.437008][ T253] ret_from_fork+0x31/0x70 [ 2314.437008][ T253] ret_from_fork_asm+0x1a/0x30 [ 2314.437008][ T253] [ 2314.439280][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2314.439280][ T253] netdev_get_by_index+0x5e/0x80 [ 2314.439280][ T253] fib6_nh_init+0x3d8/0x1580 [ 2314.439280][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2314.439280][ T253] ip6_route_add+0x1c/0x140 [ 2314.439280][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2314.439280][ T253] inet6_addr_add+0x4f8/0xa40 [ 2314.439280][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2314.439280][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2314.439280][ T253] netlink_rcv_skb+0x130/0x360 [ 2314.439280][ T253] netlink_unicast+0x449/0x710 [ 2314.439280][ T253] netlink_sendmsg+0x723/0xbe0 [ 2314.439280][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2314.439280][ T253] ___sys_sendmsg+0xee/0x170 [ 2314.439280][ T253] __sys_sendmsg+0xcd/0x170 [ 2314.439280][ T253] do_syscall_64+0xc6/0x1e0 [ 2314.439280][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2314.439280][ T253] [ 2314.441540][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2314.441540][ T253] netdev_get_by_index+0x5e/0x80 [ 2314.441540][ T253] fib6_nh_init+0x3d8/0x1580 [ 2314.441540][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2314.441540][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2314.441540][ T253] ipv6_add_addr+0x411/0x2000 [ 2314.441540][ T253] inet6_addr_add+0x30e/0xa40 [ 2314.441540][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2314.441540][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2314.441540][ T253] netlink_rcv_skb+0x130/0x360 [ 2314.441540][ T253] netlink_unicast+0x449/0x710 [ 2314.441540][ T253] netlink_sendmsg+0x723/0xbe0 [ 2314.441540][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2314.441540][ T253] ___sys_sendmsg+0xee/0x170 [ 2314.441540][ T253] __sys_sendmsg+0xcd/0x170 [ 2314.441540][ T253] do_syscall_64+0xc6/0x1e0 [ 2314.441540][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2314.441540][ T253] [ 2314.443814][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2314.443814][ T253] netdev_get_by_index+0x5e/0x80 [ 2314.443814][ T253] fib6_nh_init+0x3d8/0x1580 [ 2314.443814][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2314.443814][ T253] ip6_route_add+0x1c/0x140 [ 2314.443814][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2314.443814][ T253] addrconf_add_dev+0xe2/0x170 [ 2314.443814][ T253] inet6_addr_add+0x12f/0xa40 [ 2314.443814][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2314.443814][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2314.443814][ T253] netlink_rcv_skb+0x130/0x360 [ 2314.443814][ T253] netlink_unicast+0x449/0x710 [ 2314.443814][ T253] netlink_sendmsg+0x723/0xbe0 [ 2314.443814][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2314.443814][ T253] ___sys_sendmsg+0xee/0x170 [ 2314.443814][ T253] __sys_sendmsg+0xcd/0x170 [ 2314.443814][ T253] do_syscall_64+0xc6/0x1e0 [ 2314.443814][ T253] [ 2314.446028][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2314.446028][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2314.446028][ T253] ipv6_find_idev+0x102/0x170 [ 2314.446028][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2314.446028][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2314.446028][ T253] netlink_rcv_skb+0x130/0x360 [ 2314.446028][ T253] netlink_unicast+0x449/0x710 [ 2314.446028][ T253] netlink_sendmsg+0x723/0xbe0 [ 2314.446028][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2314.446028][ T253] ___sys_sendmsg+0xee/0x170 [ 2314.446028][ T253] __sys_sendmsg+0xcd/0x170 [ 2314.446028][ T253] do_syscall_64+0xc6/0x1e0 [ 2314.446028][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2314.446028][ T253] [ 2314.447760][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2314.447760][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2314.447760][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2314.447760][ T253] ipv6_find_idev+0x102/0x170 [ 2314.447760][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2314.447760][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2314.447760][ T253] netlink_rcv_skb+0x130/0x360 [ 2314.447760][ T253] netlink_unicast+0x449/0x710 [ 2314.447760][ T253] netlink_sendmsg+0x723/0xbe0 [ 2314.447760][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2314.447760][ T253] ___sys_sendmsg+0xee/0x170 [ 2314.447760][ T253] __sys_sendmsg+0xcd/0x170 [ 2314.447760][ T253] do_syscall_64+0xc6/0x1e0 [ 2314.447760][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2314.447760][ T253] [ 2324.610444][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2324.611294][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2324.611294][ T253] dst_init+0x84/0x4a0 [ 2324.611294][ T253] dst_alloc+0x97/0x150 [ 2324.611294][ T253] ip6_dst_alloc+0x23/0x90 [ 2324.611294][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2324.611294][ T253] ip6_pol_route+0x56f/0x840 [ 2324.611294][ T253] fib6_rule_lookup+0x334/0x630 [ 2324.611294][ T253] ip6_route_output_flags+0x259/0x480 [ 2324.611294][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2324.611294][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2324.611294][ T253] netlink_rcv_skb+0x130/0x360 [ 2324.611294][ T253] netlink_unicast+0x449/0x710 [ 2324.611294][ T253] netlink_sendmsg+0x723/0xbe0 [ 2324.611294][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2324.611294][ T253] ___sys_sendmsg+0xee/0x170 [ 2324.611294][ T253] __sys_sendmsg+0xcd/0x170 [ 2324.611294][ T253] do_syscall_64+0xc6/0x1e0 [ 2324.611294][ T253] [ 2324.614668][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2324.614668][ T253] netdev_get_by_index+0x5e/0x80 [ 2324.614668][ T253] fib6_nh_init+0x3d8/0x1580 [ 2324.614668][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2324.614668][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2324.614668][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2324.614668][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2324.614668][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2324.614668][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2324.614668][ T253] addrconf_dad_begin+0x310/0x670 [ 2324.614668][ T253] addrconf_dad_work+0x10b/0xab0 [ 2324.614668][ T253] process_one_work+0x84d/0x18a0 [ 2324.614668][ T253] worker_thread+0x587/0xd30 [ 2324.614668][ T253] kthread+0x28a/0x350 [ 2324.614668][ T253] ret_from_fork+0x31/0x70 [ 2324.614668][ T253] ret_from_fork_asm+0x1a/0x30 [ 2324.614668][ T253] [ 2324.618272][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2324.618272][ T253] netdev_get_by_index+0x5e/0x80 [ 2324.618272][ T253] fib6_nh_init+0x3d8/0x1580 [ 2324.618272][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2324.618272][ T253] ip6_route_add+0x1c/0x140 [ 2324.618272][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2324.618272][ T253] inet6_addr_add+0x4f8/0xa40 [ 2324.618272][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2324.618272][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2324.618272][ T253] netlink_rcv_skb+0x130/0x360 [ 2324.618272][ T253] netlink_unicast+0x449/0x710 [ 2324.618272][ T253] netlink_sendmsg+0x723/0xbe0 [ 2324.618272][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2324.618272][ T253] ___sys_sendmsg+0xee/0x170 [ 2324.618272][ T253] __sys_sendmsg+0xcd/0x170 [ 2324.618272][ T253] do_syscall_64+0xc6/0x1e0 [ 2324.618272][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2324.618272][ T253] [ 2324.621709][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2324.621709][ T253] netdev_get_by_index+0x5e/0x80 [ 2324.621709][ T253] fib6_nh_init+0x3d8/0x1580 [ 2324.621709][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2324.621709][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2324.621709][ T253] ipv6_add_addr+0x411/0x2000 [ 2324.621709][ T253] inet6_addr_add+0x30e/0xa40 [ 2324.621709][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2324.621709][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2324.621709][ T253] netlink_rcv_skb+0x130/0x360 [ 2324.621709][ T253] netlink_unicast+0x449/0x710 [ 2324.621709][ T253] netlink_sendmsg+0x723/0xbe0 [ 2324.621709][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2324.621709][ T253] ___sys_sendmsg+0xee/0x170 [ 2324.621709][ T253] __sys_sendmsg+0xcd/0x170 [ 2324.621709][ T253] do_syscall_64+0xc6/0x1e0 [ 2324.621709][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2324.621709][ T253] [ 2324.625330][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2324.625330][ T253] netdev_get_by_index+0x5e/0x80 [ 2324.625330][ T253] fib6_nh_init+0x3d8/0x1580 [ 2324.625330][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2324.625330][ T253] ip6_route_add+0x1c/0x140 [ 2324.625330][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2324.625330][ T253] addrconf_add_dev+0xe2/0x170 [ 2324.625330][ T253] inet6_addr_add+0x12f/0xa40 [ 2324.625330][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2324.625330][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2324.625330][ T253] netlink_rcv_skb+0x130/0x360 [ 2324.625330][ T253] netlink_unicast+0x449/0x710 [ 2324.625330][ T253] netlink_sendmsg+0x723/0xbe0 [ 2324.625330][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2324.625330][ T253] ___sys_sendmsg+0xee/0x170 [ 2324.625330][ T253] __sys_sendmsg+0xcd/0x170 [ 2324.625330][ T253] do_syscall_64+0xc6/0x1e0 [ 2324.625330][ T253] [ 2324.629005][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2324.629005][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2324.629005][ T253] ipv6_find_idev+0x102/0x170 [ 2324.629005][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2324.629005][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2324.629005][ T253] netlink_rcv_skb+0x130/0x360 [ 2324.629005][ T253] netlink_unicast+0x449/0x710 [ 2324.629005][ T253] netlink_sendmsg+0x723/0xbe0 [ 2324.629005][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2324.629005][ T253] ___sys_sendmsg+0xee/0x170 [ 2324.629005][ T253] __sys_sendmsg+0xcd/0x170 [ 2324.629005][ T253] do_syscall_64+0xc6/0x1e0 [ 2324.629005][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2324.629005][ T253] [ 2324.631989][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2324.631989][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2324.631989][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2324.631989][ T253] ipv6_find_idev+0x102/0x170 [ 2324.631989][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2324.631989][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2324.631989][ T253] netlink_rcv_skb+0x130/0x360 [ 2324.631989][ T253] netlink_unicast+0x449/0x710 [ 2324.631989][ T253] netlink_sendmsg+0x723/0xbe0 [ 2324.631989][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2324.631989][ T253] ___sys_sendmsg+0xee/0x170 [ 2324.631989][ T253] __sys_sendmsg+0xcd/0x170 [ 2324.631989][ T253] do_syscall_64+0xc6/0x1e0 [ 2324.631989][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2324.631989][ T253] [ 2334.786355][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2334.786864][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2334.786864][ T253] dst_init+0x84/0x4a0 [ 2334.786864][ T253] dst_alloc+0x97/0x150 [ 2334.786864][ T253] ip6_dst_alloc+0x23/0x90 [ 2334.786864][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2334.786864][ T253] ip6_pol_route+0x56f/0x840 [ 2334.786864][ T253] fib6_rule_lookup+0x334/0x630 [ 2334.786864][ T253] ip6_route_output_flags+0x259/0x480 [ 2334.786864][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2334.786864][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2334.786864][ T253] netlink_rcv_skb+0x130/0x360 [ 2334.786864][ T253] netlink_unicast+0x449/0x710 [ 2334.786864][ T253] netlink_sendmsg+0x723/0xbe0 [ 2334.786864][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2334.786864][ T253] ___sys_sendmsg+0xee/0x170 [ 2334.786864][ T253] __sys_sendmsg+0xcd/0x170 [ 2334.786864][ T253] do_syscall_64+0xc6/0x1e0 [ 2334.786864][ T253] [ 2334.789118][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2334.789118][ T253] netdev_get_by_index+0x5e/0x80 [ 2334.789118][ T253] fib6_nh_init+0x3d8/0x1580 [ 2334.789118][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2334.789118][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2334.789118][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2334.789118][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2334.789118][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2334.789118][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2334.789118][ T253] addrconf_dad_begin+0x310/0x670 [ 2334.789118][ T253] addrconf_dad_work+0x10b/0xab0 [ 2334.789118][ T253] process_one_work+0x84d/0x18a0 [ 2334.789118][ T253] worker_thread+0x587/0xd30 [ 2334.789118][ T253] kthread+0x28a/0x350 [ 2334.789118][ T253] ret_from_fork+0x31/0x70 [ 2334.789118][ T253] ret_from_fork_asm+0x1a/0x30 [ 2334.789118][ T253] [ 2334.791287][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2334.791287][ T253] netdev_get_by_index+0x5e/0x80 [ 2334.791287][ T253] fib6_nh_init+0x3d8/0x1580 [ 2334.791287][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2334.791287][ T253] ip6_route_add+0x1c/0x140 [ 2334.791287][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2334.791287][ T253] inet6_addr_add+0x4f8/0xa40 [ 2334.791287][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2334.791287][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2334.791287][ T253] netlink_rcv_skb+0x130/0x360 [ 2334.791287][ T253] netlink_unicast+0x449/0x710 [ 2334.791287][ T253] netlink_sendmsg+0x723/0xbe0 [ 2334.791287][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2334.791287][ T253] ___sys_sendmsg+0xee/0x170 [ 2334.791287][ T253] __sys_sendmsg+0xcd/0x170 [ 2334.791287][ T253] do_syscall_64+0xc6/0x1e0 [ 2334.791287][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2334.791287][ T253] [ 2334.793563][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2334.793563][ T253] netdev_get_by_index+0x5e/0x80 [ 2334.793563][ T253] fib6_nh_init+0x3d8/0x1580 [ 2334.793563][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2334.793563][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2334.793563][ T253] ipv6_add_addr+0x411/0x2000 [ 2334.793563][ T253] inet6_addr_add+0x30e/0xa40 [ 2334.793563][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2334.793563][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2334.793563][ T253] netlink_rcv_skb+0x130/0x360 [ 2334.793563][ T253] netlink_unicast+0x449/0x710 [ 2334.793563][ T253] netlink_sendmsg+0x723/0xbe0 [ 2334.793563][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2334.793563][ T253] ___sys_sendmsg+0xee/0x170 [ 2334.793563][ T253] __sys_sendmsg+0xcd/0x170 [ 2334.793563][ T253] do_syscall_64+0xc6/0x1e0 [ 2334.793563][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2334.793563][ T253] [ 2334.795834][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2334.795834][ T253] netdev_get_by_index+0x5e/0x80 [ 2334.795834][ T253] fib6_nh_init+0x3d8/0x1580 [ 2334.795834][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2334.795834][ T253] ip6_route_add+0x1c/0x140 [ 2334.795834][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2334.795834][ T253] addrconf_add_dev+0xe2/0x170 [ 2334.795834][ T253] inet6_addr_add+0x12f/0xa40 [ 2334.795834][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2334.795834][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2334.795834][ T253] netlink_rcv_skb+0x130/0x360 [ 2334.795834][ T253] netlink_unicast+0x449/0x710 [ 2334.795834][ T253] netlink_sendmsg+0x723/0xbe0 [ 2334.795834][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2334.795834][ T253] ___sys_sendmsg+0xee/0x170 [ 2334.795834][ T253] __sys_sendmsg+0xcd/0x170 [ 2334.795834][ T253] do_syscall_64+0xc6/0x1e0 [ 2334.795834][ T253] [ 2334.798062][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2334.798062][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2334.798062][ T253] ipv6_find_idev+0x102/0x170 [ 2334.798062][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2334.798062][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2334.798062][ T253] netlink_rcv_skb+0x130/0x360 [ 2334.798062][ T253] netlink_unicast+0x449/0x710 [ 2334.798062][ T253] netlink_sendmsg+0x723/0xbe0 [ 2334.798062][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2334.798062][ T253] ___sys_sendmsg+0xee/0x170 [ 2334.798062][ T253] __sys_sendmsg+0xcd/0x170 [ 2334.798062][ T253] do_syscall_64+0xc6/0x1e0 [ 2334.798062][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2334.798062][ T253] [ 2334.799822][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2334.799822][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2334.799822][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2334.799822][ T253] ipv6_find_idev+0x102/0x170 [ 2334.799822][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2334.799822][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2334.799822][ T253] netlink_rcv_skb+0x130/0x360 [ 2334.799822][ T253] netlink_unicast+0x449/0x710 [ 2334.799822][ T253] netlink_sendmsg+0x723/0xbe0 [ 2334.799822][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2334.799822][ T253] ___sys_sendmsg+0xee/0x170 [ 2334.799822][ T253] __sys_sendmsg+0xcd/0x170 [ 2334.799822][ T253] do_syscall_64+0xc6/0x1e0 [ 2334.799822][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2334.799822][ T253] [ 2345.042337][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2345.042835][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2345.042835][ T253] dst_init+0x84/0x4a0 [ 2345.042835][ T253] dst_alloc+0x97/0x150 [ 2345.042835][ T253] ip6_dst_alloc+0x23/0x90 [ 2345.042835][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2345.042835][ T253] ip6_pol_route+0x56f/0x840 [ 2345.042835][ T253] fib6_rule_lookup+0x334/0x630 [ 2345.042835][ T253] ip6_route_output_flags+0x259/0x480 [ 2345.042835][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2345.042835][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2345.042835][ T253] netlink_rcv_skb+0x130/0x360 [ 2345.042835][ T253] netlink_unicast+0x449/0x710 [ 2345.042835][ T253] netlink_sendmsg+0x723/0xbe0 [ 2345.042835][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2345.042835][ T253] ___sys_sendmsg+0xee/0x170 [ 2345.042835][ T253] __sys_sendmsg+0xcd/0x170 [ 2345.042835][ T253] do_syscall_64+0xc6/0x1e0 [ 2345.042835][ T253] [ 2345.045057][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2345.045057][ T253] netdev_get_by_index+0x5e/0x80 [ 2345.045057][ T253] fib6_nh_init+0x3d8/0x1580 [ 2345.045057][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2345.045057][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2345.045057][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2345.045057][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2345.045057][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2345.045057][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2345.045057][ T253] addrconf_dad_begin+0x310/0x670 [ 2345.045057][ T253] addrconf_dad_work+0x10b/0xab0 [ 2345.045057][ T253] process_one_work+0x84d/0x18a0 [ 2345.045057][ T253] worker_thread+0x587/0xd30 [ 2345.045057][ T253] kthread+0x28a/0x350 [ 2345.045057][ T253] ret_from_fork+0x31/0x70 [ 2345.045057][ T253] ret_from_fork_asm+0x1a/0x30 [ 2345.045057][ T253] [ 2345.047181][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2345.047181][ T253] netdev_get_by_index+0x5e/0x80 [ 2345.047181][ T253] fib6_nh_init+0x3d8/0x1580 [ 2345.047181][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2345.047181][ T253] ip6_route_add+0x1c/0x140 [ 2345.047181][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2345.047181][ T253] inet6_addr_add+0x4f8/0xa40 [ 2345.047181][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2345.047181][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2345.047181][ T253] netlink_rcv_skb+0x130/0x360 [ 2345.047181][ T253] netlink_unicast+0x449/0x710 [ 2345.047181][ T253] netlink_sendmsg+0x723/0xbe0 [ 2345.047181][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2345.047181][ T253] ___sys_sendmsg+0xee/0x170 [ 2345.047181][ T253] __sys_sendmsg+0xcd/0x170 [ 2345.047181][ T253] do_syscall_64+0xc6/0x1e0 [ 2345.047181][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2345.047181][ T253] [ 2345.049443][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2345.049443][ T253] netdev_get_by_index+0x5e/0x80 [ 2345.049443][ T253] fib6_nh_init+0x3d8/0x1580 [ 2345.049443][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2345.049443][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2345.049443][ T253] ipv6_add_addr+0x411/0x2000 [ 2345.049443][ T253] inet6_addr_add+0x30e/0xa40 [ 2345.049443][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2345.049443][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2345.049443][ T253] netlink_rcv_skb+0x130/0x360 [ 2345.049443][ T253] netlink_unicast+0x449/0x710 [ 2345.049443][ T253] netlink_sendmsg+0x723/0xbe0 [ 2345.049443][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2345.049443][ T253] ___sys_sendmsg+0xee/0x170 [ 2345.049443][ T253] __sys_sendmsg+0xcd/0x170 [ 2345.049443][ T253] do_syscall_64+0xc6/0x1e0 [ 2345.049443][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2345.049443][ T253] [ 2345.051692][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2345.051692][ T253] netdev_get_by_index+0x5e/0x80 [ 2345.051692][ T253] fib6_nh_init+0x3d8/0x1580 [ 2345.051692][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2345.051692][ T253] ip6_route_add+0x1c/0x140 [ 2345.051692][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2345.051692][ T253] addrconf_add_dev+0xe2/0x170 [ 2345.051692][ T253] inet6_addr_add+0x12f/0xa40 [ 2345.051692][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2345.051692][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2345.051692][ T253] netlink_rcv_skb+0x130/0x360 [ 2345.051692][ T253] netlink_unicast+0x449/0x710 [ 2345.051692][ T253] netlink_sendmsg+0x723/0xbe0 [ 2345.051692][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2345.051692][ T253] ___sys_sendmsg+0xee/0x170 [ 2345.051692][ T253] __sys_sendmsg+0xcd/0x170 [ 2345.051692][ T253] do_syscall_64+0xc6/0x1e0 [ 2345.051692][ T253] [ 2345.053898][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2345.053898][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2345.053898][ T253] ipv6_find_idev+0x102/0x170 [ 2345.053898][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2345.053898][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2345.053898][ T253] netlink_rcv_skb+0x130/0x360 [ 2345.053898][ T253] netlink_unicast+0x449/0x710 [ 2345.053898][ T253] netlink_sendmsg+0x723/0xbe0 [ 2345.053898][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2345.053898][ T253] ___sys_sendmsg+0xee/0x170 [ 2345.053898][ T253] __sys_sendmsg+0xcd/0x170 [ 2345.053898][ T253] do_syscall_64+0xc6/0x1e0 [ 2345.053898][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2345.053898][ T253] [ 2345.055598][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2345.055598][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2345.055598][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2345.055598][ T253] ipv6_find_idev+0x102/0x170 [ 2345.055598][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2345.055598][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2345.055598][ T253] netlink_rcv_skb+0x130/0x360 [ 2345.055598][ T253] netlink_unicast+0x449/0x710 [ 2345.055598][ T253] netlink_sendmsg+0x723/0xbe0 [ 2345.055598][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2345.055598][ T253] ___sys_sendmsg+0xee/0x170 [ 2345.055598][ T253] __sys_sendmsg+0xcd/0x170 [ 2345.055598][ T253] do_syscall_64+0xc6/0x1e0 [ 2345.055598][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2345.055598][ T253] [ 2355.298314][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2355.298816][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2355.298816][ T253] dst_init+0x84/0x4a0 [ 2355.298816][ T253] dst_alloc+0x97/0x150 [ 2355.298816][ T253] ip6_dst_alloc+0x23/0x90 [ 2355.298816][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2355.298816][ T253] ip6_pol_route+0x56f/0x840 [ 2355.298816][ T253] fib6_rule_lookup+0x334/0x630 [ 2355.298816][ T253] ip6_route_output_flags+0x259/0x480 [ 2355.298816][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2355.298816][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2355.298816][ T253] netlink_rcv_skb+0x130/0x360 [ 2355.298816][ T253] netlink_unicast+0x449/0x710 [ 2355.298816][ T253] netlink_sendmsg+0x723/0xbe0 [ 2355.298816][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2355.298816][ T253] ___sys_sendmsg+0xee/0x170 [ 2355.298816][ T253] __sys_sendmsg+0xcd/0x170 [ 2355.298816][ T253] do_syscall_64+0xc6/0x1e0 [ 2355.298816][ T253] [ 2355.300978][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2355.300978][ T253] netdev_get_by_index+0x5e/0x80 [ 2355.300978][ T253] fib6_nh_init+0x3d8/0x1580 [ 2355.300978][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2355.300978][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2355.300978][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2355.300978][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2355.300978][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2355.300978][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2355.300978][ T253] addrconf_dad_begin+0x310/0x670 [ 2355.300978][ T253] addrconf_dad_work+0x10b/0xab0 [ 2355.300978][ T253] process_one_work+0x84d/0x18a0 [ 2355.300978][ T253] worker_thread+0x587/0xd30 [ 2355.300978][ T253] kthread+0x28a/0x350 [ 2355.300978][ T253] ret_from_fork+0x31/0x70 [ 2355.300978][ T253] ret_from_fork_asm+0x1a/0x30 [ 2355.300978][ T253] [ 2355.303090][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2355.303090][ T253] netdev_get_by_index+0x5e/0x80 [ 2355.303090][ T253] fib6_nh_init+0x3d8/0x1580 [ 2355.303090][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2355.303090][ T253] ip6_route_add+0x1c/0x140 [ 2355.303090][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2355.303090][ T253] inet6_addr_add+0x4f8/0xa40 [ 2355.303090][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2355.303090][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2355.303090][ T253] netlink_rcv_skb+0x130/0x360 [ 2355.303090][ T253] netlink_unicast+0x449/0x710 [ 2355.303090][ T253] netlink_sendmsg+0x723/0xbe0 [ 2355.303090][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2355.303090][ T253] ___sys_sendmsg+0xee/0x170 [ 2355.303090][ T253] __sys_sendmsg+0xcd/0x170 [ 2355.303090][ T253] do_syscall_64+0xc6/0x1e0 [ 2355.303090][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2355.303090][ T253] [ 2355.305319][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2355.305319][ T253] netdev_get_by_index+0x5e/0x80 [ 2355.305319][ T253] fib6_nh_init+0x3d8/0x1580 [ 2355.305319][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2355.305319][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2355.305319][ T253] ipv6_add_addr+0x411/0x2000 [ 2355.305319][ T253] inet6_addr_add+0x30e/0xa40 [ 2355.305319][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2355.305319][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2355.305319][ T253] netlink_rcv_skb+0x130/0x360 [ 2355.305319][ T253] netlink_unicast+0x449/0x710 [ 2355.305319][ T253] netlink_sendmsg+0x723/0xbe0 [ 2355.305319][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2355.305319][ T253] ___sys_sendmsg+0xee/0x170 [ 2355.305319][ T253] __sys_sendmsg+0xcd/0x170 [ 2355.305319][ T253] do_syscall_64+0xc6/0x1e0 [ 2355.305319][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2355.305319][ T253] [ 2355.307579][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2355.307579][ T253] netdev_get_by_index+0x5e/0x80 [ 2355.307579][ T253] fib6_nh_init+0x3d8/0x1580 [ 2355.307579][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2355.307579][ T253] ip6_route_add+0x1c/0x140 [ 2355.307579][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2355.307579][ T253] addrconf_add_dev+0xe2/0x170 [ 2355.307579][ T253] inet6_addr_add+0x12f/0xa40 [ 2355.307579][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2355.307579][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2355.307579][ T253] netlink_rcv_skb+0x130/0x360 [ 2355.307579][ T253] netlink_unicast+0x449/0x710 [ 2355.307579][ T253] netlink_sendmsg+0x723/0xbe0 [ 2355.307579][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2355.307579][ T253] ___sys_sendmsg+0xee/0x170 [ 2355.307579][ T253] __sys_sendmsg+0xcd/0x170 [ 2355.307579][ T253] do_syscall_64+0xc6/0x1e0 [ 2355.307579][ T253] [ 2355.309751][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2355.309751][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2355.309751][ T253] ipv6_find_idev+0x102/0x170 [ 2355.309751][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2355.309751][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2355.309751][ T253] netlink_rcv_skb+0x130/0x360 [ 2355.309751][ T253] netlink_unicast+0x449/0x710 [ 2355.309751][ T253] netlink_sendmsg+0x723/0xbe0 [ 2355.309751][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2355.309751][ T253] ___sys_sendmsg+0xee/0x170 [ 2355.309751][ T253] __sys_sendmsg+0xcd/0x170 [ 2355.309751][ T253] do_syscall_64+0xc6/0x1e0 [ 2355.309751][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2355.309751][ T253] [ 2355.311449][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2355.311449][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2355.311449][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2355.311449][ T253] ipv6_find_idev+0x102/0x170 [ 2355.311449][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2355.311449][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2355.311449][ T253] netlink_rcv_skb+0x130/0x360 [ 2355.311449][ T253] netlink_unicast+0x449/0x710 [ 2355.311449][ T253] netlink_sendmsg+0x723/0xbe0 [ 2355.311449][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2355.311449][ T253] ___sys_sendmsg+0xee/0x170 [ 2355.311449][ T253] __sys_sendmsg+0xcd/0x170 [ 2355.311449][ T253] do_syscall_64+0xc6/0x1e0 [ 2355.311449][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2355.311449][ T253] [ 2365.554297][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2365.554768][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2365.554768][ T253] dst_init+0x84/0x4a0 [ 2365.554768][ T253] dst_alloc+0x97/0x150 [ 2365.554768][ T253] ip6_dst_alloc+0x23/0x90 [ 2365.554768][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2365.554768][ T253] ip6_pol_route+0x56f/0x840 [ 2365.554768][ T253] fib6_rule_lookup+0x334/0x630 [ 2365.554768][ T253] ip6_route_output_flags+0x259/0x480 [ 2365.554768][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2365.554768][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2365.554768][ T253] netlink_rcv_skb+0x130/0x360 [ 2365.554768][ T253] netlink_unicast+0x449/0x710 [ 2365.554768][ T253] netlink_sendmsg+0x723/0xbe0 [ 2365.554768][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2365.554768][ T253] ___sys_sendmsg+0xee/0x170 [ 2365.554768][ T253] __sys_sendmsg+0xcd/0x170 [ 2365.554768][ T253] do_syscall_64+0xc6/0x1e0 [ 2365.554768][ T253] [ 2365.556959][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2365.556959][ T253] netdev_get_by_index+0x5e/0x80 [ 2365.556959][ T253] fib6_nh_init+0x3d8/0x1580 [ 2365.556959][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2365.556959][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2365.556959][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2365.556959][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2365.556959][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2365.556959][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2365.556959][ T253] addrconf_dad_begin+0x310/0x670 [ 2365.556959][ T253] addrconf_dad_work+0x10b/0xab0 [ 2365.556959][ T253] process_one_work+0x84d/0x18a0 [ 2365.556959][ T253] worker_thread+0x587/0xd30 [ 2365.556959][ T253] kthread+0x28a/0x350 [ 2365.556959][ T253] ret_from_fork+0x31/0x70 [ 2365.556959][ T253] ret_from_fork_asm+0x1a/0x30 [ 2365.556959][ T253] [ 2365.559145][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2365.559145][ T253] netdev_get_by_index+0x5e/0x80 [ 2365.559145][ T253] fib6_nh_init+0x3d8/0x1580 [ 2365.559145][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2365.559145][ T253] ip6_route_add+0x1c/0x140 [ 2365.559145][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2365.559145][ T253] inet6_addr_add+0x4f8/0xa40 [ 2365.559145][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2365.559145][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2365.559145][ T253] netlink_rcv_skb+0x130/0x360 [ 2365.559145][ T253] netlink_unicast+0x449/0x710 [ 2365.559145][ T253] netlink_sendmsg+0x723/0xbe0 [ 2365.559145][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2365.559145][ T253] ___sys_sendmsg+0xee/0x170 [ 2365.559145][ T253] __sys_sendmsg+0xcd/0x170 [ 2365.559145][ T253] do_syscall_64+0xc6/0x1e0 [ 2365.559145][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2365.559145][ T253] [ 2365.561415][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2365.561415][ T253] netdev_get_by_index+0x5e/0x80 [ 2365.561415][ T253] fib6_nh_init+0x3d8/0x1580 [ 2365.561415][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2365.561415][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2365.561415][ T253] ipv6_add_addr+0x411/0x2000 [ 2365.561415][ T253] inet6_addr_add+0x30e/0xa40 [ 2365.561415][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2365.561415][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2365.561415][ T253] netlink_rcv_skb+0x130/0x360 [ 2365.561415][ T253] netlink_unicast+0x449/0x710 [ 2365.561415][ T253] netlink_sendmsg+0x723/0xbe0 [ 2365.561415][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2365.561415][ T253] ___sys_sendmsg+0xee/0x170 [ 2365.561415][ T253] __sys_sendmsg+0xcd/0x170 [ 2365.561415][ T253] do_syscall_64+0xc6/0x1e0 [ 2365.561415][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2365.561415][ T253] [ 2365.563623][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2365.563623][ T253] netdev_get_by_index+0x5e/0x80 [ 2365.563623][ T253] fib6_nh_init+0x3d8/0x1580 [ 2365.563623][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2365.563623][ T253] ip6_route_add+0x1c/0x140 [ 2365.563623][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2365.563623][ T253] addrconf_add_dev+0xe2/0x170 [ 2365.563623][ T253] inet6_addr_add+0x12f/0xa40 [ 2365.563623][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2365.563623][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2365.563623][ T253] netlink_rcv_skb+0x130/0x360 [ 2365.563623][ T253] netlink_unicast+0x449/0x710 [ 2365.563623][ T253] netlink_sendmsg+0x723/0xbe0 [ 2365.563623][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2365.563623][ T253] ___sys_sendmsg+0xee/0x170 [ 2365.563623][ T253] __sys_sendmsg+0xcd/0x170 [ 2365.563623][ T253] do_syscall_64+0xc6/0x1e0 [ 2365.563623][ T253] [ 2365.565823][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2365.565823][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2365.565823][ T253] ipv6_find_idev+0x102/0x170 [ 2365.565823][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2365.565823][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2365.565823][ T253] netlink_rcv_skb+0x130/0x360 [ 2365.565823][ T253] netlink_unicast+0x449/0x710 [ 2365.565823][ T253] netlink_sendmsg+0x723/0xbe0 [ 2365.565823][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2365.565823][ T253] ___sys_sendmsg+0xee/0x170 [ 2365.565823][ T253] __sys_sendmsg+0xcd/0x170 [ 2365.565823][ T253] do_syscall_64+0xc6/0x1e0 [ 2365.565823][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2365.565823][ T253] [ 2365.567540][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2365.567540][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2365.567540][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2365.567540][ T253] ipv6_find_idev+0x102/0x170 [ 2365.567540][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2365.567540][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2365.567540][ T253] netlink_rcv_skb+0x130/0x360 [ 2365.567540][ T253] netlink_unicast+0x449/0x710 [ 2365.567540][ T253] netlink_sendmsg+0x723/0xbe0 [ 2365.567540][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2365.567540][ T253] ___sys_sendmsg+0xee/0x170 [ 2365.567540][ T253] __sys_sendmsg+0xcd/0x170 [ 2365.567540][ T253] do_syscall_64+0xc6/0x1e0 [ 2365.567540][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2365.567540][ T253] [ 2375.810297][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2375.810781][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2375.810781][ T253] dst_init+0x84/0x4a0 [ 2375.810781][ T253] dst_alloc+0x97/0x150 [ 2375.810781][ T253] ip6_dst_alloc+0x23/0x90 [ 2375.810781][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2375.810781][ T253] ip6_pol_route+0x56f/0x840 [ 2375.810781][ T253] fib6_rule_lookup+0x334/0x630 [ 2375.810781][ T253] ip6_route_output_flags+0x259/0x480 [ 2375.810781][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2375.810781][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2375.810781][ T253] netlink_rcv_skb+0x130/0x360 [ 2375.810781][ T253] netlink_unicast+0x449/0x710 [ 2375.810781][ T253] netlink_sendmsg+0x723/0xbe0 [ 2375.810781][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2375.810781][ T253] ___sys_sendmsg+0xee/0x170 [ 2375.810781][ T253] __sys_sendmsg+0xcd/0x170 [ 2375.810781][ T253] do_syscall_64+0xc6/0x1e0 [ 2375.810781][ T253] [ 2375.812978][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2375.812978][ T253] netdev_get_by_index+0x5e/0x80 [ 2375.812978][ T253] fib6_nh_init+0x3d8/0x1580 [ 2375.812978][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2375.812978][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2375.812978][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2375.812978][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2375.812978][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2375.812978][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2375.812978][ T253] addrconf_dad_begin+0x310/0x670 [ 2375.812978][ T253] addrconf_dad_work+0x10b/0xab0 [ 2375.812978][ T253] process_one_work+0x84d/0x18a0 [ 2375.812978][ T253] worker_thread+0x587/0xd30 [ 2375.812978][ T253] kthread+0x28a/0x350 [ 2375.812978][ T253] ret_from_fork+0x31/0x70 [ 2375.812978][ T253] ret_from_fork_asm+0x1a/0x30 [ 2375.812978][ T253] [ 2375.815132][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2375.815132][ T253] netdev_get_by_index+0x5e/0x80 [ 2375.815132][ T253] fib6_nh_init+0x3d8/0x1580 [ 2375.815132][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2375.815132][ T253] ip6_route_add+0x1c/0x140 [ 2375.815132][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2375.815132][ T253] inet6_addr_add+0x4f8/0xa40 [ 2375.815132][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2375.815132][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2375.815132][ T253] netlink_rcv_skb+0x130/0x360 [ 2375.815132][ T253] netlink_unicast+0x449/0x710 [ 2375.815132][ T253] netlink_sendmsg+0x723/0xbe0 [ 2375.815132][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2375.815132][ T253] ___sys_sendmsg+0xee/0x170 [ 2375.815132][ T253] __sys_sendmsg+0xcd/0x170 [ 2375.815132][ T253] do_syscall_64+0xc6/0x1e0 [ 2375.815132][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2375.815132][ T253] [ 2375.817355][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2375.817355][ T253] netdev_get_by_index+0x5e/0x80 [ 2375.817355][ T253] fib6_nh_init+0x3d8/0x1580 [ 2375.817355][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2375.817355][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2375.817355][ T253] ipv6_add_addr+0x411/0x2000 [ 2375.817355][ T253] inet6_addr_add+0x30e/0xa40 [ 2375.817355][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2375.817355][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2375.817355][ T253] netlink_rcv_skb+0x130/0x360 [ 2375.817355][ T253] netlink_unicast+0x449/0x710 [ 2375.817355][ T253] netlink_sendmsg+0x723/0xbe0 [ 2375.817355][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2375.817355][ T253] ___sys_sendmsg+0xee/0x170 [ 2375.817355][ T253] __sys_sendmsg+0xcd/0x170 [ 2375.817355][ T253] do_syscall_64+0xc6/0x1e0 [ 2375.817355][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2375.817355][ T253] [ 2375.819627][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2375.819627][ T253] netdev_get_by_index+0x5e/0x80 [ 2375.819627][ T253] fib6_nh_init+0x3d8/0x1580 [ 2375.819627][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2375.819627][ T253] ip6_route_add+0x1c/0x140 [ 2375.819627][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2375.819627][ T253] addrconf_add_dev+0xe2/0x170 [ 2375.819627][ T253] inet6_addr_add+0x12f/0xa40 [ 2375.819627][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2375.819627][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2375.819627][ T253] netlink_rcv_skb+0x130/0x360 [ 2375.819627][ T253] netlink_unicast+0x449/0x710 [ 2375.819627][ T253] netlink_sendmsg+0x723/0xbe0 [ 2375.819627][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2375.819627][ T253] ___sys_sendmsg+0xee/0x170 [ 2375.819627][ T253] __sys_sendmsg+0xcd/0x170 [ 2375.819627][ T253] do_syscall_64+0xc6/0x1e0 [ 2375.819627][ T253] [ 2375.821790][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2375.821790][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2375.821790][ T253] ipv6_find_idev+0x102/0x170 [ 2375.821790][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2375.821790][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2375.821790][ T253] netlink_rcv_skb+0x130/0x360 [ 2375.821790][ T253] netlink_unicast+0x449/0x710 [ 2375.821790][ T253] netlink_sendmsg+0x723/0xbe0 [ 2375.821790][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2375.821790][ T253] ___sys_sendmsg+0xee/0x170 [ 2375.821790][ T253] __sys_sendmsg+0xcd/0x170 [ 2375.821790][ T253] do_syscall_64+0xc6/0x1e0 [ 2375.821790][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2375.821790][ T253] [ 2375.823554][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2375.823554][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2375.823554][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2375.823554][ T253] ipv6_find_idev+0x102/0x170 [ 2375.823554][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2375.823554][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2375.823554][ T253] netlink_rcv_skb+0x130/0x360 [ 2375.823554][ T253] netlink_unicast+0x449/0x710 [ 2375.823554][ T253] netlink_sendmsg+0x723/0xbe0 [ 2375.823554][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2375.823554][ T253] ___sys_sendmsg+0xee/0x170 [ 2375.823554][ T253] __sys_sendmsg+0xcd/0x170 [ 2375.823554][ T253] do_syscall_64+0xc6/0x1e0 [ 2375.823554][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2375.823554][ T253] [ 2386.066304][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2386.066774][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2386.066774][ T253] dst_init+0x84/0x4a0 [ 2386.066774][ T253] dst_alloc+0x97/0x150 [ 2386.066774][ T253] ip6_dst_alloc+0x23/0x90 [ 2386.066774][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2386.066774][ T253] ip6_pol_route+0x56f/0x840 [ 2386.066774][ T253] fib6_rule_lookup+0x334/0x630 [ 2386.066774][ T253] ip6_route_output_flags+0x259/0x480 [ 2386.066774][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2386.066774][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2386.066774][ T253] netlink_rcv_skb+0x130/0x360 [ 2386.066774][ T253] netlink_unicast+0x449/0x710 [ 2386.066774][ T253] netlink_sendmsg+0x723/0xbe0 [ 2386.066774][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2386.066774][ T253] ___sys_sendmsg+0xee/0x170 [ 2386.066774][ T253] __sys_sendmsg+0xcd/0x170 [ 2386.066774][ T253] do_syscall_64+0xc6/0x1e0 [ 2386.066774][ T253] [ 2386.069023][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2386.069023][ T253] netdev_get_by_index+0x5e/0x80 [ 2386.069023][ T253] fib6_nh_init+0x3d8/0x1580 [ 2386.069023][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2386.069023][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2386.069023][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2386.069023][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2386.069023][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2386.069023][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2386.069023][ T253] addrconf_dad_begin+0x310/0x670 [ 2386.069023][ T253] addrconf_dad_work+0x10b/0xab0 [ 2386.069023][ T253] process_one_work+0x84d/0x18a0 [ 2386.069023][ T253] worker_thread+0x587/0xd30 [ 2386.069023][ T253] kthread+0x28a/0x350 [ 2386.069023][ T253] ret_from_fork+0x31/0x70 [ 2386.069023][ T253] ret_from_fork_asm+0x1a/0x30 [ 2386.069023][ T253] [ 2386.071131][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2386.071131][ T253] netdev_get_by_index+0x5e/0x80 [ 2386.071131][ T253] fib6_nh_init+0x3d8/0x1580 [ 2386.071131][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2386.071131][ T253] ip6_route_add+0x1c/0x140 [ 2386.071131][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2386.071131][ T253] inet6_addr_add+0x4f8/0xa40 [ 2386.071131][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2386.071131][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2386.071131][ T253] netlink_rcv_skb+0x130/0x360 [ 2386.071131][ T253] netlink_unicast+0x449/0x710 [ 2386.071131][ T253] netlink_sendmsg+0x723/0xbe0 [ 2386.071131][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2386.071131][ T253] ___sys_sendmsg+0xee/0x170 [ 2386.071131][ T253] __sys_sendmsg+0xcd/0x170 [ 2386.071131][ T253] do_syscall_64+0xc6/0x1e0 [ 2386.071131][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2386.071131][ T253] [ 2386.073336][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2386.073336][ T253] netdev_get_by_index+0x5e/0x80 [ 2386.073336][ T253] fib6_nh_init+0x3d8/0x1580 [ 2386.073336][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2386.073336][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2386.073336][ T253] ipv6_add_addr+0x411/0x2000 [ 2386.073336][ T253] inet6_addr_add+0x30e/0xa40 [ 2386.073336][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2386.073336][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2386.073336][ T253] netlink_rcv_skb+0x130/0x360 [ 2386.073336][ T253] netlink_unicast+0x449/0x710 [ 2386.073336][ T253] netlink_sendmsg+0x723/0xbe0 [ 2386.073336][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2386.073336][ T253] ___sys_sendmsg+0xee/0x170 [ 2386.073336][ T253] __sys_sendmsg+0xcd/0x170 [ 2386.073336][ T253] do_syscall_64+0xc6/0x1e0 [ 2386.073336][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2386.073336][ T253] [ 2386.075549][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2386.075549][ T253] netdev_get_by_index+0x5e/0x80 [ 2386.075549][ T253] fib6_nh_init+0x3d8/0x1580 [ 2386.075549][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2386.075549][ T253] ip6_route_add+0x1c/0x140 [ 2386.075549][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2386.075549][ T253] addrconf_add_dev+0xe2/0x170 [ 2386.075549][ T253] inet6_addr_add+0x12f/0xa40 [ 2386.075549][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2386.075549][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2386.075549][ T253] netlink_rcv_skb+0x130/0x360 [ 2386.075549][ T253] netlink_unicast+0x449/0x710 [ 2386.075549][ T253] netlink_sendmsg+0x723/0xbe0 [ 2386.075549][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2386.075549][ T253] ___sys_sendmsg+0xee/0x170 [ 2386.075549][ T253] __sys_sendmsg+0xcd/0x170 [ 2386.075549][ T253] do_syscall_64+0xc6/0x1e0 [ 2386.075549][ T253] [ 2386.077715][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2386.077715][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2386.077715][ T253] ipv6_find_idev+0x102/0x170 [ 2386.077715][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2386.077715][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2386.077715][ T253] netlink_rcv_skb+0x130/0x360 [ 2386.077715][ T253] netlink_unicast+0x449/0x710 [ 2386.077715][ T253] netlink_sendmsg+0x723/0xbe0 [ 2386.077715][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2386.077715][ T253] ___sys_sendmsg+0xee/0x170 [ 2386.077715][ T253] __sys_sendmsg+0xcd/0x170 [ 2386.077715][ T253] do_syscall_64+0xc6/0x1e0 [ 2386.077715][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2386.077715][ T253] [ 2386.079462][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2386.079462][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2386.079462][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2386.079462][ T253] ipv6_find_idev+0x102/0x170 [ 2386.079462][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2386.079462][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2386.079462][ T253] netlink_rcv_skb+0x130/0x360 [ 2386.079462][ T253] netlink_unicast+0x449/0x710 [ 2386.079462][ T253] netlink_sendmsg+0x723/0xbe0 [ 2386.079462][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2386.079462][ T253] ___sys_sendmsg+0xee/0x170 [ 2386.079462][ T253] __sys_sendmsg+0xcd/0x170 [ 2386.079462][ T253] do_syscall_64+0xc6/0x1e0 [ 2386.079462][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2386.079462][ T253] [ 2396.130314][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2396.130810][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2396.130810][ T253] dst_init+0x84/0x4a0 [ 2396.130810][ T253] dst_alloc+0x97/0x150 [ 2396.130810][ T253] ip6_dst_alloc+0x23/0x90 [ 2396.130810][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2396.130810][ T253] ip6_pol_route+0x56f/0x840 [ 2396.130810][ T253] fib6_rule_lookup+0x334/0x630 [ 2396.130810][ T253] ip6_route_output_flags+0x259/0x480 [ 2396.130810][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2396.130810][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2396.130810][ T253] netlink_rcv_skb+0x130/0x360 [ 2396.130810][ T253] netlink_unicast+0x449/0x710 [ 2396.130810][ T253] netlink_sendmsg+0x723/0xbe0 [ 2396.130810][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2396.130810][ T253] ___sys_sendmsg+0xee/0x170 [ 2396.130810][ T253] __sys_sendmsg+0xcd/0x170 [ 2396.130810][ T253] do_syscall_64+0xc6/0x1e0 [ 2396.130810][ T253] [ 2396.133029][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2396.133029][ T253] netdev_get_by_index+0x5e/0x80 [ 2396.133029][ T253] fib6_nh_init+0x3d8/0x1580 [ 2396.133029][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2396.133029][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2396.133029][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2396.133029][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2396.133029][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2396.133029][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2396.133029][ T253] addrconf_dad_begin+0x310/0x670 [ 2396.133029][ T253] addrconf_dad_work+0x10b/0xab0 [ 2396.133029][ T253] process_one_work+0x84d/0x18a0 [ 2396.133029][ T253] worker_thread+0x587/0xd30 [ 2396.133029][ T253] kthread+0x28a/0x350 [ 2396.133029][ T253] ret_from_fork+0x31/0x70 [ 2396.133029][ T253] ret_from_fork_asm+0x1a/0x30 [ 2396.133029][ T253] [ 2396.135152][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2396.135152][ T253] netdev_get_by_index+0x5e/0x80 [ 2396.135152][ T253] fib6_nh_init+0x3d8/0x1580 [ 2396.135152][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2396.135152][ T253] ip6_route_add+0x1c/0x140 [ 2396.135152][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2396.135152][ T253] inet6_addr_add+0x4f8/0xa40 [ 2396.135152][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2396.135152][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2396.135152][ T253] netlink_rcv_skb+0x130/0x360 [ 2396.135152][ T253] netlink_unicast+0x449/0x710 [ 2396.135152][ T253] netlink_sendmsg+0x723/0xbe0 [ 2396.135152][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2396.135152][ T253] ___sys_sendmsg+0xee/0x170 [ 2396.135152][ T253] __sys_sendmsg+0xcd/0x170 [ 2396.135152][ T253] do_syscall_64+0xc6/0x1e0 [ 2396.135152][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2396.135152][ T253] [ 2396.137359][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2396.137359][ T253] netdev_get_by_index+0x5e/0x80 [ 2396.137359][ T253] fib6_nh_init+0x3d8/0x1580 [ 2396.137359][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2396.137359][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2396.137359][ T253] ipv6_add_addr+0x411/0x2000 [ 2396.137359][ T253] inet6_addr_add+0x30e/0xa40 [ 2396.137359][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2396.137359][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2396.137359][ T253] netlink_rcv_skb+0x130/0x360 [ 2396.137359][ T253] netlink_unicast+0x449/0x710 [ 2396.137359][ T253] netlink_sendmsg+0x723/0xbe0 [ 2396.137359][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2396.137359][ T253] ___sys_sendmsg+0xee/0x170 [ 2396.137359][ T253] __sys_sendmsg+0xcd/0x170 [ 2396.137359][ T253] do_syscall_64+0xc6/0x1e0 [ 2396.137359][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2396.137359][ T253] [ 2396.139647][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2396.139647][ T253] netdev_get_by_index+0x5e/0x80 [ 2396.139647][ T253] fib6_nh_init+0x3d8/0x1580 [ 2396.139647][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2396.139647][ T253] ip6_route_add+0x1c/0x140 [ 2396.139647][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2396.139647][ T253] addrconf_add_dev+0xe2/0x170 [ 2396.139647][ T253] inet6_addr_add+0x12f/0xa40 [ 2396.139647][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2396.139647][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2396.139647][ T253] netlink_rcv_skb+0x130/0x360 [ 2396.139647][ T253] netlink_unicast+0x449/0x710 [ 2396.139647][ T253] netlink_sendmsg+0x723/0xbe0 [ 2396.139647][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2396.139647][ T253] ___sys_sendmsg+0xee/0x170 [ 2396.139647][ T253] __sys_sendmsg+0xcd/0x170 [ 2396.139647][ T253] do_syscall_64+0xc6/0x1e0 [ 2396.139647][ T253] [ 2396.141862][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2396.141862][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2396.141862][ T253] ipv6_find_idev+0x102/0x170 [ 2396.141862][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2396.141862][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2396.141862][ T253] netlink_rcv_skb+0x130/0x360 [ 2396.141862][ T253] netlink_unicast+0x449/0x710 [ 2396.141862][ T253] netlink_sendmsg+0x723/0xbe0 [ 2396.141862][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2396.141862][ T253] ___sys_sendmsg+0xee/0x170 [ 2396.141862][ T253] __sys_sendmsg+0xcd/0x170 [ 2396.141862][ T253] do_syscall_64+0xc6/0x1e0 [ 2396.141862][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2396.141862][ T253] [ 2396.143612][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2396.143612][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2396.143612][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2396.143612][ T253] ipv6_find_idev+0x102/0x170 [ 2396.143612][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2396.143612][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2396.143612][ T253] netlink_rcv_skb+0x130/0x360 [ 2396.143612][ T253] netlink_unicast+0x449/0x710 [ 2396.143612][ T253] netlink_sendmsg+0x723/0xbe0 [ 2396.143612][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2396.143612][ T253] ___sys_sendmsg+0xee/0x170 [ 2396.143612][ T253] __sys_sendmsg+0xcd/0x170 [ 2396.143612][ T253] do_syscall_64+0xc6/0x1e0 [ 2396.143612][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2396.143612][ T253] [ 2406.386308][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2406.386792][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2406.386792][ T253] dst_init+0x84/0x4a0 [ 2406.386792][ T253] dst_alloc+0x97/0x150 [ 2406.386792][ T253] ip6_dst_alloc+0x23/0x90 [ 2406.386792][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2406.386792][ T253] ip6_pol_route+0x56f/0x840 [ 2406.386792][ T253] fib6_rule_lookup+0x334/0x630 [ 2406.386792][ T253] ip6_route_output_flags+0x259/0x480 [ 2406.386792][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2406.386792][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2406.386792][ T253] netlink_rcv_skb+0x130/0x360 [ 2406.386792][ T253] netlink_unicast+0x449/0x710 [ 2406.386792][ T253] netlink_sendmsg+0x723/0xbe0 [ 2406.386792][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2406.386792][ T253] ___sys_sendmsg+0xee/0x170 [ 2406.386792][ T253] __sys_sendmsg+0xcd/0x170 [ 2406.386792][ T253] do_syscall_64+0xc6/0x1e0 [ 2406.386792][ T253] [ 2406.389010][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2406.389010][ T253] netdev_get_by_index+0x5e/0x80 [ 2406.389010][ T253] fib6_nh_init+0x3d8/0x1580 [ 2406.389010][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2406.389010][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2406.389010][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2406.389010][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2406.389010][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2406.389010][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2406.389010][ T253] addrconf_dad_begin+0x310/0x670 [ 2406.389010][ T253] addrconf_dad_work+0x10b/0xab0 [ 2406.389010][ T253] process_one_work+0x84d/0x18a0 [ 2406.389010][ T253] worker_thread+0x587/0xd30 [ 2406.389010][ T253] kthread+0x28a/0x350 [ 2406.389010][ T253] ret_from_fork+0x31/0x70 [ 2406.389010][ T253] ret_from_fork_asm+0x1a/0x30 [ 2406.389010][ T253] [ 2406.391157][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2406.391157][ T253] netdev_get_by_index+0x5e/0x80 [ 2406.391157][ T253] fib6_nh_init+0x3d8/0x1580 [ 2406.391157][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2406.391157][ T253] ip6_route_add+0x1c/0x140 [ 2406.391157][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2406.391157][ T253] inet6_addr_add+0x4f8/0xa40 [ 2406.391157][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2406.391157][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2406.391157][ T253] netlink_rcv_skb+0x130/0x360 [ 2406.391157][ T253] netlink_unicast+0x449/0x710 [ 2406.391157][ T253] netlink_sendmsg+0x723/0xbe0 [ 2406.391157][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2406.391157][ T253] ___sys_sendmsg+0xee/0x170 [ 2406.391157][ T253] __sys_sendmsg+0xcd/0x170 [ 2406.391157][ T253] do_syscall_64+0xc6/0x1e0 [ 2406.391157][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2406.391157][ T253] [ 2406.393398][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2406.393398][ T253] netdev_get_by_index+0x5e/0x80 [ 2406.393398][ T253] fib6_nh_init+0x3d8/0x1580 [ 2406.393398][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2406.393398][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2406.393398][ T253] ipv6_add_addr+0x411/0x2000 [ 2406.393398][ T253] inet6_addr_add+0x30e/0xa40 [ 2406.393398][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2406.393398][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2406.393398][ T253] netlink_rcv_skb+0x130/0x360 [ 2406.393398][ T253] netlink_unicast+0x449/0x710 [ 2406.393398][ T253] netlink_sendmsg+0x723/0xbe0 [ 2406.393398][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2406.393398][ T253] ___sys_sendmsg+0xee/0x170 [ 2406.393398][ T253] __sys_sendmsg+0xcd/0x170 [ 2406.393398][ T253] do_syscall_64+0xc6/0x1e0 [ 2406.393398][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2406.393398][ T253] [ 2406.395637][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2406.395637][ T253] netdev_get_by_index+0x5e/0x80 [ 2406.395637][ T253] fib6_nh_init+0x3d8/0x1580 [ 2406.395637][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2406.395637][ T253] ip6_route_add+0x1c/0x140 [ 2406.395637][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2406.395637][ T253] addrconf_add_dev+0xe2/0x170 [ 2406.395637][ T253] inet6_addr_add+0x12f/0xa40 [ 2406.395637][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2406.395637][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2406.395637][ T253] netlink_rcv_skb+0x130/0x360 [ 2406.395637][ T253] netlink_unicast+0x449/0x710 [ 2406.395637][ T253] netlink_sendmsg+0x723/0xbe0 [ 2406.395637][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2406.395637][ T253] ___sys_sendmsg+0xee/0x170 [ 2406.395637][ T253] __sys_sendmsg+0xcd/0x170 [ 2406.395637][ T253] do_syscall_64+0xc6/0x1e0 [ 2406.395637][ T253] [ 2406.398380][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2406.398380][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2406.398380][ T253] ipv6_find_idev+0x102/0x170 [ 2406.398380][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2406.398380][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2406.398380][ T253] netlink_rcv_skb+0x130/0x360 [ 2406.398380][ T253] netlink_unicast+0x449/0x710 [ 2406.398380][ T253] netlink_sendmsg+0x723/0xbe0 [ 2406.398380][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2406.398380][ T253] ___sys_sendmsg+0xee/0x170 [ 2406.398380][ T253] __sys_sendmsg+0xcd/0x170 [ 2406.398380][ T253] do_syscall_64+0xc6/0x1e0 [ 2406.398380][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2406.398380][ T253] [ 2406.400103][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2406.400103][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2406.400103][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2406.400103][ T253] ipv6_find_idev+0x102/0x170 [ 2406.400103][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2406.400103][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2406.400103][ T253] netlink_rcv_skb+0x130/0x360 [ 2406.400103][ T253] netlink_unicast+0x449/0x710 [ 2406.400103][ T253] netlink_sendmsg+0x723/0xbe0 [ 2406.400103][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2406.400103][ T253] ___sys_sendmsg+0xee/0x170 [ 2406.400103][ T253] __sys_sendmsg+0xcd/0x170 [ 2406.400103][ T253] do_syscall_64+0xc6/0x1e0 [ 2406.400103][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2406.400103][ T253] [ 2416.450371][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2416.450917][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2416.450917][ T253] dst_init+0x84/0x4a0 [ 2416.450917][ T253] dst_alloc+0x97/0x150 [ 2416.450917][ T253] ip6_dst_alloc+0x23/0x90 [ 2416.450917][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2416.450917][ T253] ip6_pol_route+0x56f/0x840 [ 2416.450917][ T253] fib6_rule_lookup+0x334/0x630 [ 2416.450917][ T253] ip6_route_output_flags+0x259/0x480 [ 2416.450917][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2416.450917][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2416.450917][ T253] netlink_rcv_skb+0x130/0x360 [ 2416.450917][ T253] netlink_unicast+0x449/0x710 [ 2416.450917][ T253] netlink_sendmsg+0x723/0xbe0 [ 2416.450917][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2416.450917][ T253] ___sys_sendmsg+0xee/0x170 [ 2416.450917][ T253] __sys_sendmsg+0xcd/0x170 [ 2416.450917][ T253] do_syscall_64+0xc6/0x1e0 [ 2416.450917][ T253] [ 2416.453366][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2416.453366][ T253] netdev_get_by_index+0x5e/0x80 [ 2416.453366][ T253] fib6_nh_init+0x3d8/0x1580 [ 2416.453366][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2416.453366][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2416.453366][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2416.453366][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2416.453366][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2416.453366][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2416.453366][ T253] addrconf_dad_begin+0x310/0x670 [ 2416.453366][ T253] addrconf_dad_work+0x10b/0xab0 [ 2416.453366][ T253] process_one_work+0x84d/0x18a0 [ 2416.453366][ T253] worker_thread+0x587/0xd30 [ 2416.453366][ T253] kthread+0x28a/0x350 [ 2416.453366][ T253] ret_from_fork+0x31/0x70 [ 2416.453366][ T253] ret_from_fork_asm+0x1a/0x30 [ 2416.453366][ T253] [ 2416.455725][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2416.455725][ T253] netdev_get_by_index+0x5e/0x80 [ 2416.455725][ T253] fib6_nh_init+0x3d8/0x1580 [ 2416.455725][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2416.455725][ T253] ip6_route_add+0x1c/0x140 [ 2416.455725][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2416.455725][ T253] inet6_addr_add+0x4f8/0xa40 [ 2416.455725][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2416.455725][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2416.455725][ T253] netlink_rcv_skb+0x130/0x360 [ 2416.455725][ T253] netlink_unicast+0x449/0x710 [ 2416.455725][ T253] netlink_sendmsg+0x723/0xbe0 [ 2416.455725][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2416.455725][ T253] ___sys_sendmsg+0xee/0x170 [ 2416.455725][ T253] __sys_sendmsg+0xcd/0x170 [ 2416.455725][ T253] do_syscall_64+0xc6/0x1e0 [ 2416.455725][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2416.455725][ T253] [ 2416.458258][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2416.458258][ T253] netdev_get_by_index+0x5e/0x80 [ 2416.458258][ T253] fib6_nh_init+0x3d8/0x1580 [ 2416.458258][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2416.458258][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2416.458258][ T253] ipv6_add_addr+0x411/0x2000 [ 2416.458258][ T253] inet6_addr_add+0x30e/0xa40 [ 2416.458258][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2416.458258][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2416.458258][ T253] netlink_rcv_skb+0x130/0x360 [ 2416.458258][ T253] netlink_unicast+0x449/0x710 [ 2416.458258][ T253] netlink_sendmsg+0x723/0xbe0 [ 2416.458258][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2416.458258][ T253] ___sys_sendmsg+0xee/0x170 [ 2416.458258][ T253] __sys_sendmsg+0xcd/0x170 [ 2416.458258][ T253] do_syscall_64+0xc6/0x1e0 [ 2416.458258][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2416.458258][ T253] [ 2416.460774][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2416.460774][ T253] netdev_get_by_index+0x5e/0x80 [ 2416.460774][ T253] fib6_nh_init+0x3d8/0x1580 [ 2416.460774][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2416.460774][ T253] ip6_route_add+0x1c/0x140 [ 2416.460774][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2416.460774][ T253] addrconf_add_dev+0xe2/0x170 [ 2416.460774][ T253] inet6_addr_add+0x12f/0xa40 [ 2416.460774][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2416.460774][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2416.460774][ T253] netlink_rcv_skb+0x130/0x360 [ 2416.460774][ T253] netlink_unicast+0x449/0x710 [ 2416.460774][ T253] netlink_sendmsg+0x723/0xbe0 [ 2416.460774][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2416.460774][ T253] ___sys_sendmsg+0xee/0x170 [ 2416.460774][ T253] __sys_sendmsg+0xcd/0x170 [ 2416.460774][ T253] do_syscall_64+0xc6/0x1e0 [ 2416.460774][ T253] [ 2416.463198][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2416.463198][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2416.463198][ T253] ipv6_find_idev+0x102/0x170 [ 2416.463198][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2416.463198][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2416.463198][ T253] netlink_rcv_skb+0x130/0x360 [ 2416.463198][ T253] netlink_unicast+0x449/0x710 [ 2416.463198][ T253] netlink_sendmsg+0x723/0xbe0 [ 2416.463198][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2416.463198][ T253] ___sys_sendmsg+0xee/0x170 [ 2416.463198][ T253] __sys_sendmsg+0xcd/0x170 [ 2416.463198][ T253] do_syscall_64+0xc6/0x1e0 [ 2416.463198][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2416.463198][ T253] [ 2416.465101][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2416.465101][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2416.465101][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2416.465101][ T253] ipv6_find_idev+0x102/0x170 [ 2416.465101][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2416.465101][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2416.465101][ T253] netlink_rcv_skb+0x130/0x360 [ 2416.465101][ T253] netlink_unicast+0x449/0x710 [ 2416.465101][ T253] netlink_sendmsg+0x723/0xbe0 [ 2416.465101][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2416.465101][ T253] ___sys_sendmsg+0xee/0x170 [ 2416.465101][ T253] __sys_sendmsg+0xcd/0x170 [ 2416.465101][ T253] do_syscall_64+0xc6/0x1e0 [ 2416.465101][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2416.465101][ T253] [ 2426.658298][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2426.658821][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2426.658821][ T253] dst_init+0x84/0x4a0 [ 2426.658821][ T253] dst_alloc+0x97/0x150 [ 2426.658821][ T253] ip6_dst_alloc+0x23/0x90 [ 2426.658821][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2426.658821][ T253] ip6_pol_route+0x56f/0x840 [ 2426.658821][ T253] fib6_rule_lookup+0x334/0x630 [ 2426.658821][ T253] ip6_route_output_flags+0x259/0x480 [ 2426.658821][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2426.658821][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2426.658821][ T253] netlink_rcv_skb+0x130/0x360 [ 2426.658821][ T253] netlink_unicast+0x449/0x710 [ 2426.658821][ T253] netlink_sendmsg+0x723/0xbe0 [ 2426.658821][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2426.658821][ T253] ___sys_sendmsg+0xee/0x170 [ 2426.658821][ T253] __sys_sendmsg+0xcd/0x170 [ 2426.658821][ T253] do_syscall_64+0xc6/0x1e0 [ 2426.658821][ T253] [ 2426.661024][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2426.661024][ T253] netdev_get_by_index+0x5e/0x80 [ 2426.661024][ T253] fib6_nh_init+0x3d8/0x1580 [ 2426.661024][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2426.661024][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2426.661024][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2426.661024][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2426.661024][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2426.661024][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2426.661024][ T253] addrconf_dad_begin+0x310/0x670 [ 2426.661024][ T253] addrconf_dad_work+0x10b/0xab0 [ 2426.661024][ T253] process_one_work+0x84d/0x18a0 [ 2426.661024][ T253] worker_thread+0x587/0xd30 [ 2426.661024][ T253] kthread+0x28a/0x350 [ 2426.661024][ T253] ret_from_fork+0x31/0x70 [ 2426.661024][ T253] ret_from_fork_asm+0x1a/0x30 [ 2426.661024][ T253] [ 2426.663178][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2426.663178][ T253] netdev_get_by_index+0x5e/0x80 [ 2426.663178][ T253] fib6_nh_init+0x3d8/0x1580 [ 2426.663178][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2426.663178][ T253] ip6_route_add+0x1c/0x140 [ 2426.663178][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2426.663178][ T253] inet6_addr_add+0x4f8/0xa40 [ 2426.663178][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2426.663178][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2426.663178][ T253] netlink_rcv_skb+0x130/0x360 [ 2426.663178][ T253] netlink_unicast+0x449/0x710 [ 2426.663178][ T253] netlink_sendmsg+0x723/0xbe0 [ 2426.663178][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2426.663178][ T253] ___sys_sendmsg+0xee/0x170 [ 2426.663178][ T253] __sys_sendmsg+0xcd/0x170 [ 2426.663178][ T253] do_syscall_64+0xc6/0x1e0 [ 2426.663178][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2426.663178][ T253] [ 2426.665381][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2426.665381][ T253] netdev_get_by_index+0x5e/0x80 [ 2426.665381][ T253] fib6_nh_init+0x3d8/0x1580 [ 2426.665381][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2426.665381][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2426.665381][ T253] ipv6_add_addr+0x411/0x2000 [ 2426.665381][ T253] inet6_addr_add+0x30e/0xa40 [ 2426.665381][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2426.665381][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2426.665381][ T253] netlink_rcv_skb+0x130/0x360 [ 2426.665381][ T253] netlink_unicast+0x449/0x710 [ 2426.665381][ T253] netlink_sendmsg+0x723/0xbe0 [ 2426.665381][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2426.665381][ T253] ___sys_sendmsg+0xee/0x170 [ 2426.665381][ T253] __sys_sendmsg+0xcd/0x170 [ 2426.665381][ T253] do_syscall_64+0xc6/0x1e0 [ 2426.665381][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2426.665381][ T253] [ 2426.667627][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2426.667627][ T253] netdev_get_by_index+0x5e/0x80 [ 2426.667627][ T253] fib6_nh_init+0x3d8/0x1580 [ 2426.667627][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2426.667627][ T253] ip6_route_add+0x1c/0x140 [ 2426.667627][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2426.667627][ T253] addrconf_add_dev+0xe2/0x170 [ 2426.667627][ T253] inet6_addr_add+0x12f/0xa40 [ 2426.667627][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2426.667627][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2426.667627][ T253] netlink_rcv_skb+0x130/0x360 [ 2426.667627][ T253] netlink_unicast+0x449/0x710 [ 2426.667627][ T253] netlink_sendmsg+0x723/0xbe0 [ 2426.667627][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2426.667627][ T253] ___sys_sendmsg+0xee/0x170 [ 2426.667627][ T253] __sys_sendmsg+0xcd/0x170 [ 2426.667627][ T253] do_syscall_64+0xc6/0x1e0 [ 2426.667627][ T253] [ 2426.670587][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2426.670587][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2426.670587][ T253] ipv6_find_idev+0x102/0x170 [ 2426.670587][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2426.670587][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2426.670587][ T253] netlink_rcv_skb+0x130/0x360 [ 2426.670587][ T253] netlink_unicast+0x449/0x710 [ 2426.670587][ T253] netlink_sendmsg+0x723/0xbe0 [ 2426.670587][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2426.670587][ T253] ___sys_sendmsg+0xee/0x170 [ 2426.670587][ T253] __sys_sendmsg+0xcd/0x170 [ 2426.670587][ T253] do_syscall_64+0xc6/0x1e0 [ 2426.670587][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2426.670587][ T253] [ 2426.672318][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2426.672318][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2426.672318][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2426.672318][ T253] ipv6_find_idev+0x102/0x170 [ 2426.672318][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2426.672318][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2426.672318][ T253] netlink_rcv_skb+0x130/0x360 [ 2426.672318][ T253] netlink_unicast+0x449/0x710 [ 2426.672318][ T253] netlink_sendmsg+0x723/0xbe0 [ 2426.672318][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2426.672318][ T253] ___sys_sendmsg+0xee/0x170 [ 2426.672318][ T253] __sys_sendmsg+0xcd/0x170 [ 2426.672318][ T253] do_syscall_64+0xc6/0x1e0 [ 2426.672318][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2426.672318][ T253] [ 2436.890323][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2436.890822][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2436.890822][ T253] dst_init+0x84/0x4a0 [ 2436.890822][ T253] dst_alloc+0x97/0x150 [ 2436.890822][ T253] ip6_dst_alloc+0x23/0x90 [ 2436.890822][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2436.890822][ T253] ip6_pol_route+0x56f/0x840 [ 2436.890822][ T253] fib6_rule_lookup+0x334/0x630 [ 2436.890822][ T253] ip6_route_output_flags+0x259/0x480 [ 2436.890822][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2436.890822][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2436.890822][ T253] netlink_rcv_skb+0x130/0x360 [ 2436.890822][ T253] netlink_unicast+0x449/0x710 [ 2436.890822][ T253] netlink_sendmsg+0x723/0xbe0 [ 2436.890822][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2436.890822][ T253] ___sys_sendmsg+0xee/0x170 [ 2436.890822][ T253] __sys_sendmsg+0xcd/0x170 [ 2436.890822][ T253] do_syscall_64+0xc6/0x1e0 [ 2436.890822][ T253] [ 2436.893047][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2436.893047][ T253] netdev_get_by_index+0x5e/0x80 [ 2436.893047][ T253] fib6_nh_init+0x3d8/0x1580 [ 2436.893047][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2436.893047][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2436.893047][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2436.893047][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2436.893047][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2436.893047][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2436.893047][ T253] addrconf_dad_begin+0x310/0x670 [ 2436.893047][ T253] addrconf_dad_work+0x10b/0xab0 [ 2436.893047][ T253] process_one_work+0x84d/0x18a0 [ 2436.893047][ T253] worker_thread+0x587/0xd30 [ 2436.893047][ T253] kthread+0x28a/0x350 [ 2436.893047][ T253] ret_from_fork+0x31/0x70 [ 2436.893047][ T253] ret_from_fork_asm+0x1a/0x30 [ 2436.893047][ T253] [ 2436.895160][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2436.895160][ T253] netdev_get_by_index+0x5e/0x80 [ 2436.895160][ T253] fib6_nh_init+0x3d8/0x1580 [ 2436.895160][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2436.895160][ T253] ip6_route_add+0x1c/0x140 [ 2436.895160][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2436.895160][ T253] inet6_addr_add+0x4f8/0xa40 [ 2436.895160][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2436.895160][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2436.895160][ T253] netlink_rcv_skb+0x130/0x360 [ 2436.895160][ T253] netlink_unicast+0x449/0x710 [ 2436.895160][ T253] netlink_sendmsg+0x723/0xbe0 [ 2436.895160][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2436.895160][ T253] ___sys_sendmsg+0xee/0x170 [ 2436.895160][ T253] __sys_sendmsg+0xcd/0x170 [ 2436.895160][ T253] do_syscall_64+0xc6/0x1e0 [ 2436.895160][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2436.895160][ T253] [ 2436.897371][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2436.897371][ T253] netdev_get_by_index+0x5e/0x80 [ 2436.897371][ T253] fib6_nh_init+0x3d8/0x1580 [ 2436.897371][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2436.897371][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2436.897371][ T253] ipv6_add_addr+0x411/0x2000 [ 2436.897371][ T253] inet6_addr_add+0x30e/0xa40 [ 2436.897371][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2436.897371][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2436.897371][ T253] netlink_rcv_skb+0x130/0x360 [ 2436.897371][ T253] netlink_unicast+0x449/0x710 [ 2436.897371][ T253] netlink_sendmsg+0x723/0xbe0 [ 2436.897371][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2436.897371][ T253] ___sys_sendmsg+0xee/0x170 [ 2436.897371][ T253] __sys_sendmsg+0xcd/0x170 [ 2436.897371][ T253] do_syscall_64+0xc6/0x1e0 [ 2436.897371][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2436.897371][ T253] [ 2436.899597][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2436.899597][ T253] netdev_get_by_index+0x5e/0x80 [ 2436.899597][ T253] fib6_nh_init+0x3d8/0x1580 [ 2436.899597][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2436.899597][ T253] ip6_route_add+0x1c/0x140 [ 2436.899597][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2436.899597][ T253] addrconf_add_dev+0xe2/0x170 [ 2436.899597][ T253] inet6_addr_add+0x12f/0xa40 [ 2436.899597][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2436.899597][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2436.899597][ T253] netlink_rcv_skb+0x130/0x360 [ 2436.899597][ T253] netlink_unicast+0x449/0x710 [ 2436.899597][ T253] netlink_sendmsg+0x723/0xbe0 [ 2436.899597][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2436.899597][ T253] ___sys_sendmsg+0xee/0x170 [ 2436.899597][ T253] __sys_sendmsg+0xcd/0x170 [ 2436.899597][ T253] do_syscall_64+0xc6/0x1e0 [ 2436.899597][ T253] [ 2436.901815][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2436.901815][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2436.901815][ T253] ipv6_find_idev+0x102/0x170 [ 2436.901815][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2436.901815][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2436.901815][ T253] netlink_rcv_skb+0x130/0x360 [ 2436.901815][ T253] netlink_unicast+0x449/0x710 [ 2436.901815][ T253] netlink_sendmsg+0x723/0xbe0 [ 2436.901815][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2436.901815][ T253] ___sys_sendmsg+0xee/0x170 [ 2436.901815][ T253] __sys_sendmsg+0xcd/0x170 [ 2436.901815][ T253] do_syscall_64+0xc6/0x1e0 [ 2436.901815][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2436.901815][ T253] [ 2436.903565][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2436.903565][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2436.903565][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2436.903565][ T253] ipv6_find_idev+0x102/0x170 [ 2436.903565][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2436.903565][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2436.903565][ T253] netlink_rcv_skb+0x130/0x360 [ 2436.903565][ T253] netlink_unicast+0x449/0x710 [ 2436.903565][ T253] netlink_sendmsg+0x723/0xbe0 [ 2436.903565][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2436.903565][ T253] ___sys_sendmsg+0xee/0x170 [ 2436.903565][ T253] __sys_sendmsg+0xcd/0x170 [ 2436.903565][ T253] do_syscall_64+0xc6/0x1e0 [ 2436.903565][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2436.903565][ T253] [ 2447.154298][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2447.154798][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2447.154798][ T253] dst_init+0x84/0x4a0 [ 2447.154798][ T253] dst_alloc+0x97/0x150 [ 2447.154798][ T253] ip6_dst_alloc+0x23/0x90 [ 2447.154798][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2447.154798][ T253] ip6_pol_route+0x56f/0x840 [ 2447.154798][ T253] fib6_rule_lookup+0x334/0x630 [ 2447.154798][ T253] ip6_route_output_flags+0x259/0x480 [ 2447.154798][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2447.154798][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2447.154798][ T253] netlink_rcv_skb+0x130/0x360 [ 2447.154798][ T253] netlink_unicast+0x449/0x710 [ 2447.154798][ T253] netlink_sendmsg+0x723/0xbe0 [ 2447.154798][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2447.154798][ T253] ___sys_sendmsg+0xee/0x170 [ 2447.154798][ T253] __sys_sendmsg+0xcd/0x170 [ 2447.154798][ T253] do_syscall_64+0xc6/0x1e0 [ 2447.154798][ T253] [ 2447.156999][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2447.156999][ T253] netdev_get_by_index+0x5e/0x80 [ 2447.156999][ T253] fib6_nh_init+0x3d8/0x1580 [ 2447.156999][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2447.156999][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2447.156999][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2447.156999][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2447.156999][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2447.156999][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2447.156999][ T253] addrconf_dad_begin+0x310/0x670 [ 2447.156999][ T253] addrconf_dad_work+0x10b/0xab0 [ 2447.156999][ T253] process_one_work+0x84d/0x18a0 [ 2447.156999][ T253] worker_thread+0x587/0xd30 [ 2447.156999][ T253] kthread+0x28a/0x350 [ 2447.156999][ T253] ret_from_fork+0x31/0x70 [ 2447.156999][ T253] ret_from_fork_asm+0x1a/0x30 [ 2447.156999][ T253] [ 2447.159176][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2447.159176][ T253] netdev_get_by_index+0x5e/0x80 [ 2447.159176][ T253] fib6_nh_init+0x3d8/0x1580 [ 2447.159176][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2447.159176][ T253] ip6_route_add+0x1c/0x140 [ 2447.159176][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2447.159176][ T253] inet6_addr_add+0x4f8/0xa40 [ 2447.159176][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2447.159176][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2447.159176][ T253] netlink_rcv_skb+0x130/0x360 [ 2447.159176][ T253] netlink_unicast+0x449/0x710 [ 2447.159176][ T253] netlink_sendmsg+0x723/0xbe0 [ 2447.159176][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2447.159176][ T253] ___sys_sendmsg+0xee/0x170 [ 2447.159176][ T253] __sys_sendmsg+0xcd/0x170 [ 2447.159176][ T253] do_syscall_64+0xc6/0x1e0 [ 2447.159176][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2447.159176][ T253] [ 2447.161435][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2447.161435][ T253] netdev_get_by_index+0x5e/0x80 [ 2447.161435][ T253] fib6_nh_init+0x3d8/0x1580 [ 2447.161435][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2447.161435][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2447.161435][ T253] ipv6_add_addr+0x411/0x2000 [ 2447.161435][ T253] inet6_addr_add+0x30e/0xa40 [ 2447.161435][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2447.161435][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2447.161435][ T253] netlink_rcv_skb+0x130/0x360 [ 2447.161435][ T253] netlink_unicast+0x449/0x710 [ 2447.161435][ T253] netlink_sendmsg+0x723/0xbe0 [ 2447.161435][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2447.161435][ T253] ___sys_sendmsg+0xee/0x170 [ 2447.161435][ T253] __sys_sendmsg+0xcd/0x170 [ 2447.161435][ T253] do_syscall_64+0xc6/0x1e0 [ 2447.161435][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2447.161435][ T253] [ 2447.163682][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2447.163682][ T253] netdev_get_by_index+0x5e/0x80 [ 2447.163682][ T253] fib6_nh_init+0x3d8/0x1580 [ 2447.163682][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2447.163682][ T253] ip6_route_add+0x1c/0x140 [ 2447.163682][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2447.163682][ T253] addrconf_add_dev+0xe2/0x170 [ 2447.163682][ T253] inet6_addr_add+0x12f/0xa40 [ 2447.163682][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2447.163682][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2447.163682][ T253] netlink_rcv_skb+0x130/0x360 [ 2447.163682][ T253] netlink_unicast+0x449/0x710 [ 2447.163682][ T253] netlink_sendmsg+0x723/0xbe0 [ 2447.163682][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2447.163682][ T253] ___sys_sendmsg+0xee/0x170 [ 2447.163682][ T253] __sys_sendmsg+0xcd/0x170 [ 2447.163682][ T253] do_syscall_64+0xc6/0x1e0 [ 2447.163682][ T253] [ 2447.165908][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2447.165908][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2447.165908][ T253] ipv6_find_idev+0x102/0x170 [ 2447.165908][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2447.165908][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2447.165908][ T253] netlink_rcv_skb+0x130/0x360 [ 2447.165908][ T253] netlink_unicast+0x449/0x710 [ 2447.165908][ T253] netlink_sendmsg+0x723/0xbe0 [ 2447.165908][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2447.165908][ T253] ___sys_sendmsg+0xee/0x170 [ 2447.165908][ T253] __sys_sendmsg+0xcd/0x170 [ 2447.165908][ T253] do_syscall_64+0xc6/0x1e0 [ 2447.165908][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2447.165908][ T253] [ 2447.167653][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2447.167653][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2447.167653][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2447.167653][ T253] ipv6_find_idev+0x102/0x170 [ 2447.167653][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2447.167653][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2447.167653][ T253] netlink_rcv_skb+0x130/0x360 [ 2447.167653][ T253] netlink_unicast+0x449/0x710 [ 2447.167653][ T253] netlink_sendmsg+0x723/0xbe0 [ 2447.167653][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2447.167653][ T253] ___sys_sendmsg+0xee/0x170 [ 2447.167653][ T253] __sys_sendmsg+0xcd/0x170 [ 2447.167653][ T253] do_syscall_64+0xc6/0x1e0 [ 2447.167653][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2447.167653][ T253] [ 2457.418247][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2457.418748][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2457.418748][ T253] dst_init+0x84/0x4a0 [ 2457.418748][ T253] dst_alloc+0x97/0x150 [ 2457.418748][ T253] ip6_dst_alloc+0x23/0x90 [ 2457.418748][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2457.418748][ T253] ip6_pol_route+0x56f/0x840 [ 2457.418748][ T253] fib6_rule_lookup+0x334/0x630 [ 2457.418748][ T253] ip6_route_output_flags+0x259/0x480 [ 2457.418748][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2457.418748][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2457.418748][ T253] netlink_rcv_skb+0x130/0x360 [ 2457.418748][ T253] netlink_unicast+0x449/0x710 [ 2457.418748][ T253] netlink_sendmsg+0x723/0xbe0 [ 2457.418748][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2457.418748][ T253] ___sys_sendmsg+0xee/0x170 [ 2457.418748][ T253] __sys_sendmsg+0xcd/0x170 [ 2457.418748][ T253] do_syscall_64+0xc6/0x1e0 [ 2457.418748][ T253] [ 2457.420963][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2457.420963][ T253] netdev_get_by_index+0x5e/0x80 [ 2457.420963][ T253] fib6_nh_init+0x3d8/0x1580 [ 2457.420963][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2457.420963][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2457.420963][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2457.420963][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2457.420963][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2457.420963][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2457.420963][ T253] addrconf_dad_begin+0x310/0x670 [ 2457.420963][ T253] addrconf_dad_work+0x10b/0xab0 [ 2457.420963][ T253] process_one_work+0x84d/0x18a0 [ 2457.420963][ T253] worker_thread+0x587/0xd30 [ 2457.420963][ T253] kthread+0x28a/0x350 [ 2457.420963][ T253] ret_from_fork+0x31/0x70 [ 2457.420963][ T253] ret_from_fork_asm+0x1a/0x30 [ 2457.420963][ T253] [ 2457.423077][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2457.423077][ T253] netdev_get_by_index+0x5e/0x80 [ 2457.423077][ T253] fib6_nh_init+0x3d8/0x1580 [ 2457.423077][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2457.423077][ T253] ip6_route_add+0x1c/0x140 [ 2457.423077][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2457.423077][ T253] inet6_addr_add+0x4f8/0xa40 [ 2457.423077][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2457.423077][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2457.423077][ T253] netlink_rcv_skb+0x130/0x360 [ 2457.423077][ T253] netlink_unicast+0x449/0x710 [ 2457.423077][ T253] netlink_sendmsg+0x723/0xbe0 [ 2457.423077][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2457.423077][ T253] ___sys_sendmsg+0xee/0x170 [ 2457.423077][ T253] __sys_sendmsg+0xcd/0x170 [ 2457.423077][ T253] do_syscall_64+0xc6/0x1e0 [ 2457.423077][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2457.423077][ T253] [ 2457.425291][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2457.425291][ T253] netdev_get_by_index+0x5e/0x80 [ 2457.425291][ T253] fib6_nh_init+0x3d8/0x1580 [ 2457.425291][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2457.425291][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2457.425291][ T253] ipv6_add_addr+0x411/0x2000 [ 2457.425291][ T253] inet6_addr_add+0x30e/0xa40 [ 2457.425291][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2457.425291][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2457.425291][ T253] netlink_rcv_skb+0x130/0x360 [ 2457.425291][ T253] netlink_unicast+0x449/0x710 [ 2457.425291][ T253] netlink_sendmsg+0x723/0xbe0 [ 2457.425291][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2457.425291][ T253] ___sys_sendmsg+0xee/0x170 [ 2457.425291][ T253] __sys_sendmsg+0xcd/0x170 [ 2457.425291][ T253] do_syscall_64+0xc6/0x1e0 [ 2457.425291][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2457.425291][ T253] [ 2457.427560][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2457.427560][ T253] netdev_get_by_index+0x5e/0x80 [ 2457.427560][ T253] fib6_nh_init+0x3d8/0x1580 [ 2457.427560][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2457.427560][ T253] ip6_route_add+0x1c/0x140 [ 2457.427560][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2457.427560][ T253] addrconf_add_dev+0xe2/0x170 [ 2457.427560][ T253] inet6_addr_add+0x12f/0xa40 [ 2457.427560][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2457.427560][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2457.427560][ T253] netlink_rcv_skb+0x130/0x360 [ 2457.427560][ T253] netlink_unicast+0x449/0x710 [ 2457.427560][ T253] netlink_sendmsg+0x723/0xbe0 [ 2457.427560][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2457.427560][ T253] ___sys_sendmsg+0xee/0x170 [ 2457.427560][ T253] __sys_sendmsg+0xcd/0x170 [ 2457.427560][ T253] do_syscall_64+0xc6/0x1e0 [ 2457.427560][ T253] [ 2457.429809][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2457.429809][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2457.429809][ T253] ipv6_find_idev+0x102/0x170 [ 2457.429809][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2457.429809][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2457.429809][ T253] netlink_rcv_skb+0x130/0x360 [ 2457.429809][ T253] netlink_unicast+0x449/0x710 [ 2457.429809][ T253] netlink_sendmsg+0x723/0xbe0 [ 2457.429809][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2457.429809][ T253] ___sys_sendmsg+0xee/0x170 [ 2457.429809][ T253] __sys_sendmsg+0xcd/0x170 [ 2457.429809][ T253] do_syscall_64+0xc6/0x1e0 [ 2457.429809][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2457.429809][ T253] [ 2457.431549][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2457.431549][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2457.431549][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2457.431549][ T253] ipv6_find_idev+0x102/0x170 [ 2457.431549][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2457.431549][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2457.431549][ T253] netlink_rcv_skb+0x130/0x360 [ 2457.431549][ T253] netlink_unicast+0x449/0x710 [ 2457.431549][ T253] netlink_sendmsg+0x723/0xbe0 [ 2457.431549][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2457.431549][ T253] ___sys_sendmsg+0xee/0x170 [ 2457.431549][ T253] __sys_sendmsg+0xcd/0x170 [ 2457.431549][ T253] do_syscall_64+0xc6/0x1e0 [ 2457.431549][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2457.431549][ T253] [ 2467.682300][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2467.682806][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2467.682806][ T253] dst_init+0x84/0x4a0 [ 2467.682806][ T253] dst_alloc+0x97/0x150 [ 2467.682806][ T253] ip6_dst_alloc+0x23/0x90 [ 2467.682806][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2467.682806][ T253] ip6_pol_route+0x56f/0x840 [ 2467.682806][ T253] fib6_rule_lookup+0x334/0x630 [ 2467.682806][ T253] ip6_route_output_flags+0x259/0x480 [ 2467.682806][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2467.682806][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2467.682806][ T253] netlink_rcv_skb+0x130/0x360 [ 2467.682806][ T253] netlink_unicast+0x449/0x710 [ 2467.682806][ T253] netlink_sendmsg+0x723/0xbe0 [ 2467.682806][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2467.682806][ T253] ___sys_sendmsg+0xee/0x170 [ 2467.682806][ T253] __sys_sendmsg+0xcd/0x170 [ 2467.682806][ T253] do_syscall_64+0xc6/0x1e0 [ 2467.682806][ T253] [ 2467.685005][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2467.685005][ T253] netdev_get_by_index+0x5e/0x80 [ 2467.685005][ T253] fib6_nh_init+0x3d8/0x1580 [ 2467.685005][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2467.685005][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2467.685005][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2467.685005][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2467.685005][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2467.685005][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2467.685005][ T253] addrconf_dad_begin+0x310/0x670 [ 2467.685005][ T253] addrconf_dad_work+0x10b/0xab0 [ 2467.685005][ T253] process_one_work+0x84d/0x18a0 [ 2467.685005][ T253] worker_thread+0x587/0xd30 [ 2467.685005][ T253] kthread+0x28a/0x350 [ 2467.685005][ T253] ret_from_fork+0x31/0x70 [ 2467.685005][ T253] ret_from_fork_asm+0x1a/0x30 [ 2467.685005][ T253] [ 2467.687117][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2467.687117][ T253] netdev_get_by_index+0x5e/0x80 [ 2467.687117][ T253] fib6_nh_init+0x3d8/0x1580 [ 2467.687117][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2467.687117][ T253] ip6_route_add+0x1c/0x140 [ 2467.687117][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2467.687117][ T253] inet6_addr_add+0x4f8/0xa40 [ 2467.687117][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2467.687117][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2467.687117][ T253] netlink_rcv_skb+0x130/0x360 [ 2467.687117][ T253] netlink_unicast+0x449/0x710 [ 2467.687117][ T253] netlink_sendmsg+0x723/0xbe0 [ 2467.687117][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2467.687117][ T253] ___sys_sendmsg+0xee/0x170 [ 2467.687117][ T253] __sys_sendmsg+0xcd/0x170 [ 2467.687117][ T253] do_syscall_64+0xc6/0x1e0 [ 2467.687117][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2467.687117][ T253] [ 2467.689381][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2467.689381][ T253] netdev_get_by_index+0x5e/0x80 [ 2467.689381][ T253] fib6_nh_init+0x3d8/0x1580 [ 2467.689381][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2467.689381][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2467.689381][ T253] ipv6_add_addr+0x411/0x2000 [ 2467.689381][ T253] inet6_addr_add+0x30e/0xa40 [ 2467.689381][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2467.689381][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2467.689381][ T253] netlink_rcv_skb+0x130/0x360 [ 2467.689381][ T253] netlink_unicast+0x449/0x710 [ 2467.689381][ T253] netlink_sendmsg+0x723/0xbe0 [ 2467.689381][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2467.689381][ T253] ___sys_sendmsg+0xee/0x170 [ 2467.689381][ T253] __sys_sendmsg+0xcd/0x170 [ 2467.689381][ T253] do_syscall_64+0xc6/0x1e0 [ 2467.689381][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2467.689381][ T253] [ 2467.691645][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2467.691645][ T253] netdev_get_by_index+0x5e/0x80 [ 2467.691645][ T253] fib6_nh_init+0x3d8/0x1580 [ 2467.691645][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2467.691645][ T253] ip6_route_add+0x1c/0x140 [ 2467.691645][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2467.691645][ T253] addrconf_add_dev+0xe2/0x170 [ 2467.691645][ T253] inet6_addr_add+0x12f/0xa40 [ 2467.691645][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2467.691645][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2467.691645][ T253] netlink_rcv_skb+0x130/0x360 [ 2467.691645][ T253] netlink_unicast+0x449/0x710 [ 2467.691645][ T253] netlink_sendmsg+0x723/0xbe0 [ 2467.691645][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2467.691645][ T253] ___sys_sendmsg+0xee/0x170 [ 2467.691645][ T253] __sys_sendmsg+0xcd/0x170 [ 2467.691645][ T253] do_syscall_64+0xc6/0x1e0 [ 2467.691645][ T253] [ 2467.693841][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2467.693841][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2467.693841][ T253] ipv6_find_idev+0x102/0x170 [ 2467.693841][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2467.693841][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2467.693841][ T253] netlink_rcv_skb+0x130/0x360 [ 2467.693841][ T253] netlink_unicast+0x449/0x710 [ 2467.693841][ T253] netlink_sendmsg+0x723/0xbe0 [ 2467.693841][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2467.693841][ T253] ___sys_sendmsg+0xee/0x170 [ 2467.693841][ T253] __sys_sendmsg+0xcd/0x170 [ 2467.693841][ T253] do_syscall_64+0xc6/0x1e0 [ 2467.693841][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2467.693841][ T253] [ 2467.695566][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2467.695566][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2467.695566][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2467.695566][ T253] ipv6_find_idev+0x102/0x170 [ 2467.695566][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2467.695566][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2467.695566][ T253] netlink_rcv_skb+0x130/0x360 [ 2467.695566][ T253] netlink_unicast+0x449/0x710 [ 2467.695566][ T253] netlink_sendmsg+0x723/0xbe0 [ 2467.695566][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2467.695566][ T253] ___sys_sendmsg+0xee/0x170 [ 2467.695566][ T253] __sys_sendmsg+0xcd/0x170 [ 2467.695566][ T253] do_syscall_64+0xc6/0x1e0 [ 2467.695566][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2467.695566][ T253] [ 2477.914238][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2477.914741][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2477.914741][ T253] dst_init+0x84/0x4a0 [ 2477.914741][ T253] dst_alloc+0x97/0x150 [ 2477.914741][ T253] ip6_dst_alloc+0x23/0x90 [ 2477.914741][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2477.914741][ T253] ip6_pol_route+0x56f/0x840 [ 2477.914741][ T253] fib6_rule_lookup+0x334/0x630 [ 2477.914741][ T253] ip6_route_output_flags+0x259/0x480 [ 2477.914741][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2477.914741][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2477.914741][ T253] netlink_rcv_skb+0x130/0x360 [ 2477.914741][ T253] netlink_unicast+0x449/0x710 [ 2477.914741][ T253] netlink_sendmsg+0x723/0xbe0 [ 2477.914741][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2477.914741][ T253] ___sys_sendmsg+0xee/0x170 [ 2477.914741][ T253] __sys_sendmsg+0xcd/0x170 [ 2477.914741][ T253] do_syscall_64+0xc6/0x1e0 [ 2477.914741][ T253] [ 2477.916974][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2477.916974][ T253] netdev_get_by_index+0x5e/0x80 [ 2477.916974][ T253] fib6_nh_init+0x3d8/0x1580 [ 2477.916974][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2477.916974][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2477.916974][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2477.916974][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2477.916974][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2477.916974][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2477.916974][ T253] addrconf_dad_begin+0x310/0x670 [ 2477.916974][ T253] addrconf_dad_work+0x10b/0xab0 [ 2477.916974][ T253] process_one_work+0x84d/0x18a0 [ 2477.916974][ T253] worker_thread+0x587/0xd30 [ 2477.916974][ T253] kthread+0x28a/0x350 [ 2477.916974][ T253] ret_from_fork+0x31/0x70 [ 2477.916974][ T253] ret_from_fork_asm+0x1a/0x30 [ 2477.916974][ T253] [ 2477.919145][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2477.919145][ T253] netdev_get_by_index+0x5e/0x80 [ 2477.919145][ T253] fib6_nh_init+0x3d8/0x1580 [ 2477.919145][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2477.919145][ T253] ip6_route_add+0x1c/0x140 [ 2477.919145][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2477.919145][ T253] inet6_addr_add+0x4f8/0xa40 [ 2477.919145][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2477.919145][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2477.919145][ T253] netlink_rcv_skb+0x130/0x360 [ 2477.919145][ T253] netlink_unicast+0x449/0x710 [ 2477.919145][ T253] netlink_sendmsg+0x723/0xbe0 [ 2477.919145][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2477.919145][ T253] ___sys_sendmsg+0xee/0x170 [ 2477.919145][ T253] __sys_sendmsg+0xcd/0x170 [ 2477.919145][ T253] do_syscall_64+0xc6/0x1e0 [ 2477.919145][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2477.919145][ T253] [ 2477.921409][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2477.921409][ T253] netdev_get_by_index+0x5e/0x80 [ 2477.921409][ T253] fib6_nh_init+0x3d8/0x1580 [ 2477.921409][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2477.921409][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2477.921409][ T253] ipv6_add_addr+0x411/0x2000 [ 2477.921409][ T253] inet6_addr_add+0x30e/0xa40 [ 2477.921409][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2477.921409][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2477.921409][ T253] netlink_rcv_skb+0x130/0x360 [ 2477.921409][ T253] netlink_unicast+0x449/0x710 [ 2477.921409][ T253] netlink_sendmsg+0x723/0xbe0 [ 2477.921409][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2477.921409][ T253] ___sys_sendmsg+0xee/0x170 [ 2477.921409][ T253] __sys_sendmsg+0xcd/0x170 [ 2477.921409][ T253] do_syscall_64+0xc6/0x1e0 [ 2477.921409][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2477.921409][ T253] [ 2477.923679][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2477.923679][ T253] netdev_get_by_index+0x5e/0x80 [ 2477.923679][ T253] fib6_nh_init+0x3d8/0x1580 [ 2477.923679][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2477.923679][ T253] ip6_route_add+0x1c/0x140 [ 2477.923679][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2477.923679][ T253] addrconf_add_dev+0xe2/0x170 [ 2477.923679][ T253] inet6_addr_add+0x12f/0xa40 [ 2477.923679][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2477.923679][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2477.923679][ T253] netlink_rcv_skb+0x130/0x360 [ 2477.923679][ T253] netlink_unicast+0x449/0x710 [ 2477.923679][ T253] netlink_sendmsg+0x723/0xbe0 [ 2477.923679][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2477.923679][ T253] ___sys_sendmsg+0xee/0x170 [ 2477.923679][ T253] __sys_sendmsg+0xcd/0x170 [ 2477.923679][ T253] do_syscall_64+0xc6/0x1e0 [ 2477.923679][ T253] [ 2477.925911][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2477.925911][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2477.925911][ T253] ipv6_find_idev+0x102/0x170 [ 2477.925911][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2477.925911][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2477.925911][ T253] netlink_rcv_skb+0x130/0x360 [ 2477.925911][ T253] netlink_unicast+0x449/0x710 [ 2477.925911][ T253] netlink_sendmsg+0x723/0xbe0 [ 2477.925911][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2477.925911][ T253] ___sys_sendmsg+0xee/0x170 [ 2477.925911][ T253] __sys_sendmsg+0xcd/0x170 [ 2477.925911][ T253] do_syscall_64+0xc6/0x1e0 [ 2477.925911][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2477.925911][ T253] [ 2477.927698][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2477.927698][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2477.927698][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2477.927698][ T253] ipv6_find_idev+0x102/0x170 [ 2477.927698][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2477.927698][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2477.927698][ T253] netlink_rcv_skb+0x130/0x360 [ 2477.927698][ T253] netlink_unicast+0x449/0x710 [ 2477.927698][ T253] netlink_sendmsg+0x723/0xbe0 [ 2477.927698][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2477.927698][ T253] ___sys_sendmsg+0xee/0x170 [ 2477.927698][ T253] __sys_sendmsg+0xcd/0x170 [ 2477.927698][ T253] do_syscall_64+0xc6/0x1e0 [ 2477.927698][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2477.927698][ T253] [ 2488.170299][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2488.170793][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2488.170793][ T253] dst_init+0x84/0x4a0 [ 2488.170793][ T253] dst_alloc+0x97/0x150 [ 2488.170793][ T253] ip6_dst_alloc+0x23/0x90 [ 2488.170793][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2488.170793][ T253] ip6_pol_route+0x56f/0x840 [ 2488.170793][ T253] fib6_rule_lookup+0x334/0x630 [ 2488.170793][ T253] ip6_route_output_flags+0x259/0x480 [ 2488.170793][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2488.170793][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2488.170793][ T253] netlink_rcv_skb+0x130/0x360 [ 2488.170793][ T253] netlink_unicast+0x449/0x710 [ 2488.170793][ T253] netlink_sendmsg+0x723/0xbe0 [ 2488.170793][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2488.170793][ T253] ___sys_sendmsg+0xee/0x170 [ 2488.170793][ T253] __sys_sendmsg+0xcd/0x170 [ 2488.170793][ T253] do_syscall_64+0xc6/0x1e0 [ 2488.170793][ T253] [ 2488.173010][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2488.173010][ T253] netdev_get_by_index+0x5e/0x80 [ 2488.173010][ T253] fib6_nh_init+0x3d8/0x1580 [ 2488.173010][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2488.173010][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2488.173010][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2488.173010][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2488.173010][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2488.173010][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2488.173010][ T253] addrconf_dad_begin+0x310/0x670 [ 2488.173010][ T253] addrconf_dad_work+0x10b/0xab0 [ 2488.173010][ T253] process_one_work+0x84d/0x18a0 [ 2488.173010][ T253] worker_thread+0x587/0xd30 [ 2488.173010][ T253] kthread+0x28a/0x350 [ 2488.173010][ T253] ret_from_fork+0x31/0x70 [ 2488.173010][ T253] ret_from_fork_asm+0x1a/0x30 [ 2488.173010][ T253] [ 2488.175152][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2488.175152][ T253] netdev_get_by_index+0x5e/0x80 [ 2488.175152][ T253] fib6_nh_init+0x3d8/0x1580 [ 2488.175152][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2488.175152][ T253] ip6_route_add+0x1c/0x140 [ 2488.175152][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2488.175152][ T253] inet6_addr_add+0x4f8/0xa40 [ 2488.175152][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2488.175152][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2488.175152][ T253] netlink_rcv_skb+0x130/0x360 [ 2488.175152][ T253] netlink_unicast+0x449/0x710 [ 2488.175152][ T253] netlink_sendmsg+0x723/0xbe0 [ 2488.175152][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2488.175152][ T253] ___sys_sendmsg+0xee/0x170 [ 2488.175152][ T253] __sys_sendmsg+0xcd/0x170 [ 2488.175152][ T253] do_syscall_64+0xc6/0x1e0 [ 2488.175152][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2488.175152][ T253] [ 2488.177405][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2488.177405][ T253] netdev_get_by_index+0x5e/0x80 [ 2488.177405][ T253] fib6_nh_init+0x3d8/0x1580 [ 2488.177405][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2488.177405][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2488.177405][ T253] ipv6_add_addr+0x411/0x2000 [ 2488.177405][ T253] inet6_addr_add+0x30e/0xa40 [ 2488.177405][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2488.177405][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2488.177405][ T253] netlink_rcv_skb+0x130/0x360 [ 2488.177405][ T253] netlink_unicast+0x449/0x710 [ 2488.177405][ T253] netlink_sendmsg+0x723/0xbe0 [ 2488.177405][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2488.177405][ T253] ___sys_sendmsg+0xee/0x170 [ 2488.177405][ T253] __sys_sendmsg+0xcd/0x170 [ 2488.177405][ T253] do_syscall_64+0xc6/0x1e0 [ 2488.177405][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2488.177405][ T253] [ 2488.179654][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2488.179654][ T253] netdev_get_by_index+0x5e/0x80 [ 2488.179654][ T253] fib6_nh_init+0x3d8/0x1580 [ 2488.179654][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2488.179654][ T253] ip6_route_add+0x1c/0x140 [ 2488.179654][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2488.179654][ T253] addrconf_add_dev+0xe2/0x170 [ 2488.179654][ T253] inet6_addr_add+0x12f/0xa40 [ 2488.179654][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2488.179654][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2488.179654][ T253] netlink_rcv_skb+0x130/0x360 [ 2488.179654][ T253] netlink_unicast+0x449/0x710 [ 2488.179654][ T253] netlink_sendmsg+0x723/0xbe0 [ 2488.179654][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2488.179654][ T253] ___sys_sendmsg+0xee/0x170 [ 2488.179654][ T253] __sys_sendmsg+0xcd/0x170 [ 2488.179654][ T253] do_syscall_64+0xc6/0x1e0 [ 2488.179654][ T253] [ 2488.181872][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2488.181872][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2488.181872][ T253] ipv6_find_idev+0x102/0x170 [ 2488.181872][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2488.181872][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2488.181872][ T253] netlink_rcv_skb+0x130/0x360 [ 2488.181872][ T253] netlink_unicast+0x449/0x710 [ 2488.181872][ T253] netlink_sendmsg+0x723/0xbe0 [ 2488.181872][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2488.181872][ T253] ___sys_sendmsg+0xee/0x170 [ 2488.181872][ T253] __sys_sendmsg+0xcd/0x170 [ 2488.181872][ T253] do_syscall_64+0xc6/0x1e0 [ 2488.181872][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2488.181872][ T253] [ 2488.183581][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2488.183581][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2488.183581][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2488.183581][ T253] ipv6_find_idev+0x102/0x170 [ 2488.183581][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2488.183581][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2488.183581][ T253] netlink_rcv_skb+0x130/0x360 [ 2488.183581][ T253] netlink_unicast+0x449/0x710 [ 2488.183581][ T253] netlink_sendmsg+0x723/0xbe0 [ 2488.183581][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2488.183581][ T253] ___sys_sendmsg+0xee/0x170 [ 2488.183581][ T253] __sys_sendmsg+0xcd/0x170 [ 2488.183581][ T253] do_syscall_64+0xc6/0x1e0 [ 2488.183581][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2488.183581][ T253] [ 2498.426303][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2498.426853][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2498.426853][ T253] dst_init+0x84/0x4a0 [ 2498.426853][ T253] dst_alloc+0x97/0x150 [ 2498.426853][ T253] ip6_dst_alloc+0x23/0x90 [ 2498.426853][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2498.426853][ T253] ip6_pol_route+0x56f/0x840 [ 2498.426853][ T253] fib6_rule_lookup+0x334/0x630 [ 2498.426853][ T253] ip6_route_output_flags+0x259/0x480 [ 2498.426853][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2498.426853][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2498.426853][ T253] netlink_rcv_skb+0x130/0x360 [ 2498.426853][ T253] netlink_unicast+0x449/0x710 [ 2498.426853][ T253] netlink_sendmsg+0x723/0xbe0 [ 2498.426853][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2498.426853][ T253] ___sys_sendmsg+0xee/0x170 [ 2498.426853][ T253] __sys_sendmsg+0xcd/0x170 [ 2498.426853][ T253] do_syscall_64+0xc6/0x1e0 [ 2498.426853][ T253] [ 2498.429365][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2498.429365][ T253] netdev_get_by_index+0x5e/0x80 [ 2498.429365][ T253] fib6_nh_init+0x3d8/0x1580 [ 2498.429365][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2498.429365][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2498.429365][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2498.429365][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2498.429365][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2498.429365][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2498.429365][ T253] addrconf_dad_begin+0x310/0x670 [ 2498.429365][ T253] addrconf_dad_work+0x10b/0xab0 [ 2498.429365][ T253] process_one_work+0x84d/0x18a0 [ 2498.429365][ T253] worker_thread+0x587/0xd30 [ 2498.429365][ T253] kthread+0x28a/0x350 [ 2498.429365][ T253] ret_from_fork+0x31/0x70 [ 2498.429365][ T253] ret_from_fork_asm+0x1a/0x30 [ 2498.429365][ T253] [ 2498.431776][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2498.431776][ T253] netdev_get_by_index+0x5e/0x80 [ 2498.431776][ T253] fib6_nh_init+0x3d8/0x1580 [ 2498.431776][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2498.431776][ T253] ip6_route_add+0x1c/0x140 [ 2498.431776][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2498.431776][ T253] inet6_addr_add+0x4f8/0xa40 [ 2498.431776][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2498.431776][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2498.431776][ T253] netlink_rcv_skb+0x130/0x360 [ 2498.431776][ T253] netlink_unicast+0x449/0x710 [ 2498.431776][ T253] netlink_sendmsg+0x723/0xbe0 [ 2498.431776][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2498.431776][ T253] ___sys_sendmsg+0xee/0x170 [ 2498.431776][ T253] __sys_sendmsg+0xcd/0x170 [ 2498.431776][ T253] do_syscall_64+0xc6/0x1e0 [ 2498.431776][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2498.431776][ T253] [ 2498.434358][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2498.434358][ T253] netdev_get_by_index+0x5e/0x80 [ 2498.434358][ T253] fib6_nh_init+0x3d8/0x1580 [ 2498.434358][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2498.434358][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2498.434358][ T253] ipv6_add_addr+0x411/0x2000 [ 2498.434358][ T253] inet6_addr_add+0x30e/0xa40 [ 2498.434358][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2498.434358][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2498.434358][ T253] netlink_rcv_skb+0x130/0x360 [ 2498.434358][ T253] netlink_unicast+0x449/0x710 [ 2498.434358][ T253] netlink_sendmsg+0x723/0xbe0 [ 2498.434358][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2498.434358][ T253] ___sys_sendmsg+0xee/0x170 [ 2498.434358][ T253] __sys_sendmsg+0xcd/0x170 [ 2498.434358][ T253] do_syscall_64+0xc6/0x1e0 [ 2498.434358][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2498.434358][ T253] [ 2498.436853][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2498.436853][ T253] netdev_get_by_index+0x5e/0x80 [ 2498.436853][ T253] fib6_nh_init+0x3d8/0x1580 [ 2498.436853][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2498.436853][ T253] ip6_route_add+0x1c/0x140 [ 2498.436853][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2498.436853][ T253] addrconf_add_dev+0xe2/0x170 [ 2498.436853][ T253] inet6_addr_add+0x12f/0xa40 [ 2498.436853][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2498.436853][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2498.436853][ T253] netlink_rcv_skb+0x130/0x360 [ 2498.436853][ T253] netlink_unicast+0x449/0x710 [ 2498.436853][ T253] netlink_sendmsg+0x723/0xbe0 [ 2498.436853][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2498.436853][ T253] ___sys_sendmsg+0xee/0x170 [ 2498.436853][ T253] __sys_sendmsg+0xcd/0x170 [ 2498.436853][ T253] do_syscall_64+0xc6/0x1e0 [ 2498.436853][ T253] [ 2498.439279][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2498.439279][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2498.439279][ T253] ipv6_find_idev+0x102/0x170 [ 2498.439279][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2498.439279][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2498.439279][ T253] netlink_rcv_skb+0x130/0x360 [ 2498.439279][ T253] netlink_unicast+0x449/0x710 [ 2498.439279][ T253] netlink_sendmsg+0x723/0xbe0 [ 2498.439279][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2498.439279][ T253] ___sys_sendmsg+0xee/0x170 [ 2498.439279][ T253] __sys_sendmsg+0xcd/0x170 [ 2498.439279][ T253] do_syscall_64+0xc6/0x1e0 [ 2498.439279][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2498.439279][ T253] [ 2498.441199][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2498.441199][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2498.441199][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2498.441199][ T253] ipv6_find_idev+0x102/0x170 [ 2498.441199][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2498.441199][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2498.441199][ T253] netlink_rcv_skb+0x130/0x360 [ 2498.441199][ T253] netlink_unicast+0x449/0x710 [ 2498.441199][ T253] netlink_sendmsg+0x723/0xbe0 [ 2498.441199][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2498.441199][ T253] ___sys_sendmsg+0xee/0x170 [ 2498.441199][ T253] __sys_sendmsg+0xcd/0x170 [ 2498.441199][ T253] do_syscall_64+0xc6/0x1e0 [ 2498.441199][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2498.441199][ T253] [ 2508.682312][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2508.682839][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2508.682839][ T253] dst_init+0x84/0x4a0 [ 2508.682839][ T253] dst_alloc+0x97/0x150 [ 2508.682839][ T253] ip6_dst_alloc+0x23/0x90 [ 2508.682839][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2508.682839][ T253] ip6_pol_route+0x56f/0x840 [ 2508.682839][ T253] fib6_rule_lookup+0x334/0x630 [ 2508.682839][ T253] ip6_route_output_flags+0x259/0x480 [ 2508.682839][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2508.682839][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2508.682839][ T253] netlink_rcv_skb+0x130/0x360 [ 2508.682839][ T253] netlink_unicast+0x449/0x710 [ 2508.682839][ T253] netlink_sendmsg+0x723/0xbe0 [ 2508.682839][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2508.682839][ T253] ___sys_sendmsg+0xee/0x170 [ 2508.682839][ T253] __sys_sendmsg+0xcd/0x170 [ 2508.682839][ T253] do_syscall_64+0xc6/0x1e0 [ 2508.682839][ T253] [ 2508.685052][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2508.685052][ T253] netdev_get_by_index+0x5e/0x80 [ 2508.685052][ T253] fib6_nh_init+0x3d8/0x1580 [ 2508.685052][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2508.685052][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2508.685052][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2508.685052][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2508.685052][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2508.685052][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2508.685052][ T253] addrconf_dad_begin+0x310/0x670 [ 2508.685052][ T253] addrconf_dad_work+0x10b/0xab0 [ 2508.685052][ T253] process_one_work+0x84d/0x18a0 [ 2508.685052][ T253] worker_thread+0x587/0xd30 [ 2508.685052][ T253] kthread+0x28a/0x350 [ 2508.685052][ T253] ret_from_fork+0x31/0x70 [ 2508.685052][ T253] ret_from_fork_asm+0x1a/0x30 [ 2508.685052][ T253] [ 2508.687255][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2508.687255][ T253] netdev_get_by_index+0x5e/0x80 [ 2508.687255][ T253] fib6_nh_init+0x3d8/0x1580 [ 2508.687255][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2508.687255][ T253] ip6_route_add+0x1c/0x140 [ 2508.687255][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2508.687255][ T253] inet6_addr_add+0x4f8/0xa40 [ 2508.687255][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2508.687255][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2508.687255][ T253] netlink_rcv_skb+0x130/0x360 [ 2508.687255][ T253] netlink_unicast+0x449/0x710 [ 2508.687255][ T253] netlink_sendmsg+0x723/0xbe0 [ 2508.687255][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2508.687255][ T253] ___sys_sendmsg+0xee/0x170 [ 2508.687255][ T253] __sys_sendmsg+0xcd/0x170 [ 2508.687255][ T253] do_syscall_64+0xc6/0x1e0 [ 2508.687255][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2508.687255][ T253] [ 2508.689535][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2508.689535][ T253] netdev_get_by_index+0x5e/0x80 [ 2508.689535][ T253] fib6_nh_init+0x3d8/0x1580 [ 2508.689535][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2508.689535][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2508.689535][ T253] ipv6_add_addr+0x411/0x2000 [ 2508.689535][ T253] inet6_addr_add+0x30e/0xa40 [ 2508.689535][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2508.689535][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2508.689535][ T253] netlink_rcv_skb+0x130/0x360 [ 2508.689535][ T253] netlink_unicast+0x449/0x710 [ 2508.689535][ T253] netlink_sendmsg+0x723/0xbe0 [ 2508.689535][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2508.689535][ T253] ___sys_sendmsg+0xee/0x170 [ 2508.689535][ T253] __sys_sendmsg+0xcd/0x170 [ 2508.689535][ T253] do_syscall_64+0xc6/0x1e0 [ 2508.689535][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2508.689535][ T253] [ 2508.691830][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2508.691830][ T253] netdev_get_by_index+0x5e/0x80 [ 2508.691830][ T253] fib6_nh_init+0x3d8/0x1580 [ 2508.691830][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2508.691830][ T253] ip6_route_add+0x1c/0x140 [ 2508.691830][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2508.691830][ T253] addrconf_add_dev+0xe2/0x170 [ 2508.691830][ T253] inet6_addr_add+0x12f/0xa40 [ 2508.691830][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2508.691830][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2508.691830][ T253] netlink_rcv_skb+0x130/0x360 [ 2508.691830][ T253] netlink_unicast+0x449/0x710 [ 2508.691830][ T253] netlink_sendmsg+0x723/0xbe0 [ 2508.691830][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2508.691830][ T253] ___sys_sendmsg+0xee/0x170 [ 2508.691830][ T253] __sys_sendmsg+0xcd/0x170 [ 2508.691830][ T253] do_syscall_64+0xc6/0x1e0 [ 2508.691830][ T253] [ 2508.694063][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2508.694063][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2508.694063][ T253] ipv6_find_idev+0x102/0x170 [ 2508.694063][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2508.694063][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2508.694063][ T253] netlink_rcv_skb+0x130/0x360 [ 2508.694063][ T253] netlink_unicast+0x449/0x710 [ 2508.694063][ T253] netlink_sendmsg+0x723/0xbe0 [ 2508.694063][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2508.694063][ T253] ___sys_sendmsg+0xee/0x170 [ 2508.694063][ T253] __sys_sendmsg+0xcd/0x170 [ 2508.694063][ T253] do_syscall_64+0xc6/0x1e0 [ 2508.694063][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2508.694063][ T253] [ 2508.695817][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2508.695817][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2508.695817][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2508.695817][ T253] ipv6_find_idev+0x102/0x170 [ 2508.695817][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2508.695817][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2508.695817][ T253] netlink_rcv_skb+0x130/0x360 [ 2508.695817][ T253] netlink_unicast+0x449/0x710 [ 2508.695817][ T253] netlink_sendmsg+0x723/0xbe0 [ 2508.695817][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2508.695817][ T253] ___sys_sendmsg+0xee/0x170 [ 2508.695817][ T253] __sys_sendmsg+0xcd/0x170 [ 2508.695817][ T253] do_syscall_64+0xc6/0x1e0 [ 2508.695817][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2508.695817][ T253] [ 2518.938306][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2518.938806][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2518.938806][ T253] dst_init+0x84/0x4a0 [ 2518.938806][ T253] dst_alloc+0x97/0x150 [ 2518.938806][ T253] ip6_dst_alloc+0x23/0x90 [ 2518.938806][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2518.938806][ T253] ip6_pol_route+0x56f/0x840 [ 2518.938806][ T253] fib6_rule_lookup+0x334/0x630 [ 2518.938806][ T253] ip6_route_output_flags+0x259/0x480 [ 2518.938806][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2518.938806][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2518.938806][ T253] netlink_rcv_skb+0x130/0x360 [ 2518.938806][ T253] netlink_unicast+0x449/0x710 [ 2518.938806][ T253] netlink_sendmsg+0x723/0xbe0 [ 2518.938806][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2518.938806][ T253] ___sys_sendmsg+0xee/0x170 [ 2518.938806][ T253] __sys_sendmsg+0xcd/0x170 [ 2518.938806][ T253] do_syscall_64+0xc6/0x1e0 [ 2518.938806][ T253] [ 2518.941029][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2518.941029][ T253] netdev_get_by_index+0x5e/0x80 [ 2518.941029][ T253] fib6_nh_init+0x3d8/0x1580 [ 2518.941029][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2518.941029][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2518.941029][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2518.941029][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2518.941029][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2518.941029][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2518.941029][ T253] addrconf_dad_begin+0x310/0x670 [ 2518.941029][ T253] addrconf_dad_work+0x10b/0xab0 [ 2518.941029][ T253] process_one_work+0x84d/0x18a0 [ 2518.941029][ T253] worker_thread+0x587/0xd30 [ 2518.941029][ T253] kthread+0x28a/0x350 [ 2518.941029][ T253] ret_from_fork+0x31/0x70 [ 2518.941029][ T253] ret_from_fork_asm+0x1a/0x30 [ 2518.941029][ T253] [ 2518.943174][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2518.943174][ T253] netdev_get_by_index+0x5e/0x80 [ 2518.943174][ T253] fib6_nh_init+0x3d8/0x1580 [ 2518.943174][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2518.943174][ T253] ip6_route_add+0x1c/0x140 [ 2518.943174][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2518.943174][ T253] inet6_addr_add+0x4f8/0xa40 [ 2518.943174][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2518.943174][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2518.943174][ T253] netlink_rcv_skb+0x130/0x360 [ 2518.943174][ T253] netlink_unicast+0x449/0x710 [ 2518.943174][ T253] netlink_sendmsg+0x723/0xbe0 [ 2518.943174][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2518.943174][ T253] ___sys_sendmsg+0xee/0x170 [ 2518.943174][ T253] __sys_sendmsg+0xcd/0x170 [ 2518.943174][ T253] do_syscall_64+0xc6/0x1e0 [ 2518.943174][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2518.943174][ T253] [ 2518.945427][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2518.945427][ T253] netdev_get_by_index+0x5e/0x80 [ 2518.945427][ T253] fib6_nh_init+0x3d8/0x1580 [ 2518.945427][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2518.945427][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2518.945427][ T253] ipv6_add_addr+0x411/0x2000 [ 2518.945427][ T253] inet6_addr_add+0x30e/0xa40 [ 2518.945427][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2518.945427][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2518.945427][ T253] netlink_rcv_skb+0x130/0x360 [ 2518.945427][ T253] netlink_unicast+0x449/0x710 [ 2518.945427][ T253] netlink_sendmsg+0x723/0xbe0 [ 2518.945427][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2518.945427][ T253] ___sys_sendmsg+0xee/0x170 [ 2518.945427][ T253] __sys_sendmsg+0xcd/0x170 [ 2518.945427][ T253] do_syscall_64+0xc6/0x1e0 [ 2518.945427][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2518.945427][ T253] [ 2518.947670][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2518.947670][ T253] netdev_get_by_index+0x5e/0x80 [ 2518.947670][ T253] fib6_nh_init+0x3d8/0x1580 [ 2518.947670][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2518.947670][ T253] ip6_route_add+0x1c/0x140 [ 2518.947670][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2518.947670][ T253] addrconf_add_dev+0xe2/0x170 [ 2518.947670][ T253] inet6_addr_add+0x12f/0xa40 [ 2518.947670][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2518.947670][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2518.947670][ T253] netlink_rcv_skb+0x130/0x360 [ 2518.947670][ T253] netlink_unicast+0x449/0x710 [ 2518.947670][ T253] netlink_sendmsg+0x723/0xbe0 [ 2518.947670][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2518.947670][ T253] ___sys_sendmsg+0xee/0x170 [ 2518.947670][ T253] __sys_sendmsg+0xcd/0x170 [ 2518.947670][ T253] do_syscall_64+0xc6/0x1e0 [ 2518.947670][ T253] [ 2518.949874][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2518.949874][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2518.949874][ T253] ipv6_find_idev+0x102/0x170 [ 2518.949874][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2518.949874][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2518.949874][ T253] netlink_rcv_skb+0x130/0x360 [ 2518.949874][ T253] netlink_unicast+0x449/0x710 [ 2518.949874][ T253] netlink_sendmsg+0x723/0xbe0 [ 2518.949874][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2518.949874][ T253] ___sys_sendmsg+0xee/0x170 [ 2518.949874][ T253] __sys_sendmsg+0xcd/0x170 [ 2518.949874][ T253] do_syscall_64+0xc6/0x1e0 [ 2518.949874][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2518.949874][ T253] [ 2518.951576][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2518.951576][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2518.951576][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2518.951576][ T253] ipv6_find_idev+0x102/0x170 [ 2518.951576][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2518.951576][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2518.951576][ T253] netlink_rcv_skb+0x130/0x360 [ 2518.951576][ T253] netlink_unicast+0x449/0x710 [ 2518.951576][ T253] netlink_sendmsg+0x723/0xbe0 [ 2518.951576][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2518.951576][ T253] ___sys_sendmsg+0xee/0x170 [ 2518.951576][ T253] __sys_sendmsg+0xcd/0x170 [ 2518.951576][ T253] do_syscall_64+0xc6/0x1e0 [ 2518.951576][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2518.951576][ T253] [ 2529.194302][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2529.194791][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2529.194791][ T253] dst_init+0x84/0x4a0 [ 2529.194791][ T253] dst_alloc+0x97/0x150 [ 2529.194791][ T253] ip6_dst_alloc+0x23/0x90 [ 2529.194791][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2529.194791][ T253] ip6_pol_route+0x56f/0x840 [ 2529.194791][ T253] fib6_rule_lookup+0x334/0x630 [ 2529.194791][ T253] ip6_route_output_flags+0x259/0x480 [ 2529.194791][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2529.194791][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2529.194791][ T253] netlink_rcv_skb+0x130/0x360 [ 2529.194791][ T253] netlink_unicast+0x449/0x710 [ 2529.194791][ T253] netlink_sendmsg+0x723/0xbe0 [ 2529.194791][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2529.194791][ T253] ___sys_sendmsg+0xee/0x170 [ 2529.194791][ T253] __sys_sendmsg+0xcd/0x170 [ 2529.194791][ T253] do_syscall_64+0xc6/0x1e0 [ 2529.194791][ T253] [ 2529.197117][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2529.197117][ T253] netdev_get_by_index+0x5e/0x80 [ 2529.197117][ T253] fib6_nh_init+0x3d8/0x1580 [ 2529.197117][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2529.197117][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2529.197117][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2529.197117][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2529.197117][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2529.197117][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2529.197117][ T253] addrconf_dad_begin+0x310/0x670 [ 2529.197117][ T253] addrconf_dad_work+0x10b/0xab0 [ 2529.197117][ T253] process_one_work+0x84d/0x18a0 [ 2529.197117][ T253] worker_thread+0x587/0xd30 [ 2529.197117][ T253] kthread+0x28a/0x350 [ 2529.197117][ T253] ret_from_fork+0x31/0x70 [ 2529.197117][ T253] ret_from_fork_asm+0x1a/0x30 [ 2529.197117][ T253] [ 2529.199294][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2529.199294][ T253] netdev_get_by_index+0x5e/0x80 [ 2529.199294][ T253] fib6_nh_init+0x3d8/0x1580 [ 2529.199294][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2529.199294][ T253] ip6_route_add+0x1c/0x140 [ 2529.199294][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2529.199294][ T253] inet6_addr_add+0x4f8/0xa40 [ 2529.199294][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2529.199294][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2529.199294][ T253] netlink_rcv_skb+0x130/0x360 [ 2529.199294][ T253] netlink_unicast+0x449/0x710 [ 2529.199294][ T253] netlink_sendmsg+0x723/0xbe0 [ 2529.199294][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2529.199294][ T253] ___sys_sendmsg+0xee/0x170 [ 2529.199294][ T253] __sys_sendmsg+0xcd/0x170 [ 2529.199294][ T253] do_syscall_64+0xc6/0x1e0 [ 2529.199294][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2529.199294][ T253] [ 2529.201558][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2529.201558][ T253] netdev_get_by_index+0x5e/0x80 [ 2529.201558][ T253] fib6_nh_init+0x3d8/0x1580 [ 2529.201558][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2529.201558][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2529.201558][ T253] ipv6_add_addr+0x411/0x2000 [ 2529.201558][ T253] inet6_addr_add+0x30e/0xa40 [ 2529.201558][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2529.201558][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2529.201558][ T253] netlink_rcv_skb+0x130/0x360 [ 2529.201558][ T253] netlink_unicast+0x449/0x710 [ 2529.201558][ T253] netlink_sendmsg+0x723/0xbe0 [ 2529.201558][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2529.201558][ T253] ___sys_sendmsg+0xee/0x170 [ 2529.201558][ T253] __sys_sendmsg+0xcd/0x170 [ 2529.201558][ T253] do_syscall_64+0xc6/0x1e0 [ 2529.201558][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2529.201558][ T253] [ 2529.203764][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2529.203764][ T253] netdev_get_by_index+0x5e/0x80 [ 2529.203764][ T253] fib6_nh_init+0x3d8/0x1580 [ 2529.203764][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2529.203764][ T253] ip6_route_add+0x1c/0x140 [ 2529.203764][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2529.203764][ T253] addrconf_add_dev+0xe2/0x170 [ 2529.203764][ T253] inet6_addr_add+0x12f/0xa40 [ 2529.203764][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2529.203764][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2529.203764][ T253] netlink_rcv_skb+0x130/0x360 [ 2529.203764][ T253] netlink_unicast+0x449/0x710 [ 2529.203764][ T253] netlink_sendmsg+0x723/0xbe0 [ 2529.203764][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2529.203764][ T253] ___sys_sendmsg+0xee/0x170 [ 2529.203764][ T253] __sys_sendmsg+0xcd/0x170 [ 2529.203764][ T253] do_syscall_64+0xc6/0x1e0 [ 2529.203764][ T253] [ 2529.205939][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2529.205939][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2529.205939][ T253] ipv6_find_idev+0x102/0x170 [ 2529.205939][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2529.205939][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2529.205939][ T253] netlink_rcv_skb+0x130/0x360 [ 2529.205939][ T253] netlink_unicast+0x449/0x710 [ 2529.205939][ T253] netlink_sendmsg+0x723/0xbe0 [ 2529.205939][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2529.205939][ T253] ___sys_sendmsg+0xee/0x170 [ 2529.205939][ T253] __sys_sendmsg+0xcd/0x170 [ 2529.205939][ T253] do_syscall_64+0xc6/0x1e0 [ 2529.205939][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2529.205939][ T253] [ 2529.207672][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2529.207672][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2529.207672][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2529.207672][ T253] ipv6_find_idev+0x102/0x170 [ 2529.207672][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2529.207672][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2529.207672][ T253] netlink_rcv_skb+0x130/0x360 [ 2529.207672][ T253] netlink_unicast+0x449/0x710 [ 2529.207672][ T253] netlink_sendmsg+0x723/0xbe0 [ 2529.207672][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2529.207672][ T253] ___sys_sendmsg+0xee/0x170 [ 2529.207672][ T253] __sys_sendmsg+0xcd/0x170 [ 2529.207672][ T253] do_syscall_64+0xc6/0x1e0 [ 2529.207672][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2529.207672][ T253] [ 2539.458294][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2539.458781][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2539.458781][ T253] dst_init+0x84/0x4a0 [ 2539.458781][ T253] dst_alloc+0x97/0x150 [ 2539.458781][ T253] ip6_dst_alloc+0x23/0x90 [ 2539.458781][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2539.458781][ T253] ip6_pol_route+0x56f/0x840 [ 2539.458781][ T253] fib6_rule_lookup+0x334/0x630 [ 2539.458781][ T253] ip6_route_output_flags+0x259/0x480 [ 2539.458781][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2539.458781][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2539.458781][ T253] netlink_rcv_skb+0x130/0x360 [ 2539.458781][ T253] netlink_unicast+0x449/0x710 [ 2539.458781][ T253] netlink_sendmsg+0x723/0xbe0 [ 2539.458781][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2539.458781][ T253] ___sys_sendmsg+0xee/0x170 [ 2539.458781][ T253] __sys_sendmsg+0xcd/0x170 [ 2539.458781][ T253] do_syscall_64+0xc6/0x1e0 [ 2539.458781][ T253] [ 2539.460962][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2539.460962][ T253] netdev_get_by_index+0x5e/0x80 [ 2539.460962][ T253] fib6_nh_init+0x3d8/0x1580 [ 2539.460962][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2539.460962][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2539.460962][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2539.460962][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2539.460962][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2539.460962][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2539.460962][ T253] addrconf_dad_begin+0x310/0x670 [ 2539.460962][ T253] addrconf_dad_work+0x10b/0xab0 [ 2539.460962][ T253] process_one_work+0x84d/0x18a0 [ 2539.460962][ T253] worker_thread+0x587/0xd30 [ 2539.460962][ T253] kthread+0x28a/0x350 [ 2539.460962][ T253] ret_from_fork+0x31/0x70 [ 2539.460962][ T253] ret_from_fork_asm+0x1a/0x30 [ 2539.460962][ T253] [ 2539.463073][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2539.463073][ T253] netdev_get_by_index+0x5e/0x80 [ 2539.463073][ T253] fib6_nh_init+0x3d8/0x1580 [ 2539.463073][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2539.463073][ T253] ip6_route_add+0x1c/0x140 [ 2539.463073][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2539.463073][ T253] inet6_addr_add+0x4f8/0xa40 [ 2539.463073][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2539.463073][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2539.463073][ T253] netlink_rcv_skb+0x130/0x360 [ 2539.463073][ T253] netlink_unicast+0x449/0x710 [ 2539.463073][ T253] netlink_sendmsg+0x723/0xbe0 [ 2539.463073][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2539.463073][ T253] ___sys_sendmsg+0xee/0x170 [ 2539.463073][ T253] __sys_sendmsg+0xcd/0x170 [ 2539.463073][ T253] do_syscall_64+0xc6/0x1e0 [ 2539.463073][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2539.463073][ T253] [ 2539.465301][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2539.465301][ T253] netdev_get_by_index+0x5e/0x80 [ 2539.465301][ T253] fib6_nh_init+0x3d8/0x1580 [ 2539.465301][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2539.465301][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2539.465301][ T253] ipv6_add_addr+0x411/0x2000 [ 2539.465301][ T253] inet6_addr_add+0x30e/0xa40 [ 2539.465301][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2539.465301][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2539.465301][ T253] netlink_rcv_skb+0x130/0x360 [ 2539.465301][ T253] netlink_unicast+0x449/0x710 [ 2539.465301][ T253] netlink_sendmsg+0x723/0xbe0 [ 2539.465301][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2539.465301][ T253] ___sys_sendmsg+0xee/0x170 [ 2539.465301][ T253] __sys_sendmsg+0xcd/0x170 [ 2539.465301][ T253] do_syscall_64+0xc6/0x1e0 [ 2539.465301][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2539.465301][ T253] [ 2539.467573][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2539.467573][ T253] netdev_get_by_index+0x5e/0x80 [ 2539.467573][ T253] fib6_nh_init+0x3d8/0x1580 [ 2539.467573][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2539.467573][ T253] ip6_route_add+0x1c/0x140 [ 2539.467573][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2539.467573][ T253] addrconf_add_dev+0xe2/0x170 [ 2539.467573][ T253] inet6_addr_add+0x12f/0xa40 [ 2539.467573][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2539.467573][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2539.467573][ T253] netlink_rcv_skb+0x130/0x360 [ 2539.467573][ T253] netlink_unicast+0x449/0x710 [ 2539.467573][ T253] netlink_sendmsg+0x723/0xbe0 [ 2539.467573][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2539.467573][ T253] ___sys_sendmsg+0xee/0x170 [ 2539.467573][ T253] __sys_sendmsg+0xcd/0x170 [ 2539.467573][ T253] do_syscall_64+0xc6/0x1e0 [ 2539.467573][ T253] [ 2539.469773][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2539.469773][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2539.469773][ T253] ipv6_find_idev+0x102/0x170 [ 2539.469773][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2539.469773][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2539.469773][ T253] netlink_rcv_skb+0x130/0x360 [ 2539.469773][ T253] netlink_unicast+0x449/0x710 [ 2539.469773][ T253] netlink_sendmsg+0x723/0xbe0 [ 2539.469773][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2539.469773][ T253] ___sys_sendmsg+0xee/0x170 [ 2539.469773][ T253] __sys_sendmsg+0xcd/0x170 [ 2539.469773][ T253] do_syscall_64+0xc6/0x1e0 [ 2539.469773][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2539.469773][ T253] [ 2539.471486][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2539.471486][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2539.471486][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2539.471486][ T253] ipv6_find_idev+0x102/0x170 [ 2539.471486][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2539.471486][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2539.471486][ T253] netlink_rcv_skb+0x130/0x360 [ 2539.471486][ T253] netlink_unicast+0x449/0x710 [ 2539.471486][ T253] netlink_sendmsg+0x723/0xbe0 [ 2539.471486][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2539.471486][ T253] ___sys_sendmsg+0xee/0x170 [ 2539.471486][ T253] __sys_sendmsg+0xcd/0x170 [ 2539.471486][ T253] do_syscall_64+0xc6/0x1e0 [ 2539.471486][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2539.471486][ T253] [ 2549.714339][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2549.715056][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2549.715056][ T253] dst_init+0x84/0x4a0 [ 2549.715056][ T253] dst_alloc+0x97/0x150 [ 2549.715056][ T253] ip6_dst_alloc+0x23/0x90 [ 2549.715056][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2549.715056][ T253] ip6_pol_route+0x56f/0x840 [ 2549.715056][ T253] fib6_rule_lookup+0x334/0x630 [ 2549.715056][ T253] ip6_route_output_flags+0x259/0x480 [ 2549.715056][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2549.715056][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2549.715056][ T253] netlink_rcv_skb+0x130/0x360 [ 2549.715056][ T253] netlink_unicast+0x449/0x710 [ 2549.715056][ T253] netlink_sendmsg+0x723/0xbe0 [ 2549.715056][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2549.715056][ T253] ___sys_sendmsg+0xee/0x170 [ 2549.715056][ T253] __sys_sendmsg+0xcd/0x170 [ 2549.715056][ T253] do_syscall_64+0xc6/0x1e0 [ 2549.715056][ T253] [ 2549.718899][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2549.718899][ T253] netdev_get_by_index+0x5e/0x80 [ 2549.718899][ T253] fib6_nh_init+0x3d8/0x1580 [ 2549.718899][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2549.718899][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2549.718899][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2549.718899][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2549.718899][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2549.718899][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2549.718899][ T253] addrconf_dad_begin+0x310/0x670 [ 2549.718899][ T253] addrconf_dad_work+0x10b/0xab0 [ 2549.718899][ T253] process_one_work+0x84d/0x18a0 [ 2549.718899][ T253] worker_thread+0x587/0xd30 [ 2549.718899][ T253] kthread+0x28a/0x350 [ 2549.718899][ T253] ret_from_fork+0x31/0x70 [ 2549.718899][ T253] ret_from_fork_asm+0x1a/0x30 [ 2549.718899][ T253] [ 2549.722579][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2549.722579][ T253] netdev_get_by_index+0x5e/0x80 [ 2549.722579][ T253] fib6_nh_init+0x3d8/0x1580 [ 2549.722579][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2549.722579][ T253] ip6_route_add+0x1c/0x140 [ 2549.722579][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2549.722579][ T253] inet6_addr_add+0x4f8/0xa40 [ 2549.722579][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2549.722579][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2549.722579][ T253] netlink_rcv_skb+0x130/0x360 [ 2549.722579][ T253] netlink_unicast+0x449/0x710 [ 2549.722579][ T253] netlink_sendmsg+0x723/0xbe0 [ 2549.722579][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2549.722579][ T253] ___sys_sendmsg+0xee/0x170 [ 2549.722579][ T253] __sys_sendmsg+0xcd/0x170 [ 2549.722579][ T253] do_syscall_64+0xc6/0x1e0 [ 2549.722579][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2549.722579][ T253] [ 2549.726387][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2549.726387][ T253] netdev_get_by_index+0x5e/0x80 [ 2549.726387][ T253] fib6_nh_init+0x3d8/0x1580 [ 2549.726387][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2549.726387][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2549.726387][ T253] ipv6_add_addr+0x411/0x2000 [ 2549.726387][ T253] inet6_addr_add+0x30e/0xa40 [ 2549.726387][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2549.726387][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2549.726387][ T253] netlink_rcv_skb+0x130/0x360 [ 2549.726387][ T253] netlink_unicast+0x449/0x710 [ 2549.726387][ T253] netlink_sendmsg+0x723/0xbe0 [ 2549.726387][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2549.726387][ T253] ___sys_sendmsg+0xee/0x170 [ 2549.726387][ T253] __sys_sendmsg+0xcd/0x170 [ 2549.726387][ T253] do_syscall_64+0xc6/0x1e0 [ 2549.726387][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2549.726387][ T253] [ 2549.730218][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2549.730218][ T253] netdev_get_by_index+0x5e/0x80 [ 2549.730218][ T253] fib6_nh_init+0x3d8/0x1580 [ 2549.730218][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2549.730218][ T253] ip6_route_add+0x1c/0x140 [ 2549.730218][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2549.730218][ T253] addrconf_add_dev+0xe2/0x170 [ 2549.730218][ T253] inet6_addr_add+0x12f/0xa40 [ 2549.730218][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2549.730218][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2549.730218][ T253] netlink_rcv_skb+0x130/0x360 [ 2549.730218][ T253] netlink_unicast+0x449/0x710 [ 2549.730218][ T253] netlink_sendmsg+0x723/0xbe0 [ 2549.730218][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2549.730218][ T253] ___sys_sendmsg+0xee/0x170 [ 2549.730218][ T253] __sys_sendmsg+0xcd/0x170 [ 2549.730218][ T253] do_syscall_64+0xc6/0x1e0 [ 2549.730218][ T253] [ 2549.733895][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2549.733895][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2549.733895][ T253] ipv6_find_idev+0x102/0x170 [ 2549.733895][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2549.733895][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2549.733895][ T253] netlink_rcv_skb+0x130/0x360 [ 2549.733895][ T253] netlink_unicast+0x449/0x710 [ 2549.733895][ T253] netlink_sendmsg+0x723/0xbe0 [ 2549.733895][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2549.733895][ T253] ___sys_sendmsg+0xee/0x170 [ 2549.733895][ T253] __sys_sendmsg+0xcd/0x170 [ 2549.733895][ T253] do_syscall_64+0xc6/0x1e0 [ 2549.733895][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2549.733895][ T253] [ 2549.736886][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2549.736886][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2549.736886][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2549.736886][ T253] ipv6_find_idev+0x102/0x170 [ 2549.736886][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2549.736886][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2549.736886][ T253] netlink_rcv_skb+0x130/0x360 [ 2549.736886][ T253] netlink_unicast+0x449/0x710 [ 2549.736886][ T253] netlink_sendmsg+0x723/0xbe0 [ 2549.736886][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2549.736886][ T253] ___sys_sendmsg+0xee/0x170 [ 2549.736886][ T253] __sys_sendmsg+0xcd/0x170 [ 2549.736886][ T253] do_syscall_64+0xc6/0x1e0 [ 2549.736886][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2549.736886][ T253] [ 2559.874299][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2559.874807][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2559.874807][ T253] dst_init+0x84/0x4a0 [ 2559.874807][ T253] dst_alloc+0x97/0x150 [ 2559.874807][ T253] ip6_dst_alloc+0x23/0x90 [ 2559.874807][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2559.874807][ T253] ip6_pol_route+0x56f/0x840 [ 2559.874807][ T253] fib6_rule_lookup+0x334/0x630 [ 2559.874807][ T253] ip6_route_output_flags+0x259/0x480 [ 2559.874807][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2559.874807][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2559.874807][ T253] netlink_rcv_skb+0x130/0x360 [ 2559.874807][ T253] netlink_unicast+0x449/0x710 [ 2559.874807][ T253] netlink_sendmsg+0x723/0xbe0 [ 2559.874807][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2559.874807][ T253] ___sys_sendmsg+0xee/0x170 [ 2559.874807][ T253] __sys_sendmsg+0xcd/0x170 [ 2559.874807][ T253] do_syscall_64+0xc6/0x1e0 [ 2559.874807][ T253] [ 2559.877029][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2559.877029][ T253] netdev_get_by_index+0x5e/0x80 [ 2559.877029][ T253] fib6_nh_init+0x3d8/0x1580 [ 2559.877029][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2559.877029][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2559.877029][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2559.877029][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2559.877029][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2559.877029][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2559.877029][ T253] addrconf_dad_begin+0x310/0x670 [ 2559.877029][ T253] addrconf_dad_work+0x10b/0xab0 [ 2559.877029][ T253] process_one_work+0x84d/0x18a0 [ 2559.877029][ T253] worker_thread+0x587/0xd30 [ 2559.877029][ T253] kthread+0x28a/0x350 [ 2559.877029][ T253] ret_from_fork+0x31/0x70 [ 2559.877029][ T253] ret_from_fork_asm+0x1a/0x30 [ 2559.877029][ T253] [ 2559.879191][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2559.879191][ T253] netdev_get_by_index+0x5e/0x80 [ 2559.879191][ T253] fib6_nh_init+0x3d8/0x1580 [ 2559.879191][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2559.879191][ T253] ip6_route_add+0x1c/0x140 [ 2559.879191][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2559.879191][ T253] inet6_addr_add+0x4f8/0xa40 [ 2559.879191][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2559.879191][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2559.879191][ T253] netlink_rcv_skb+0x130/0x360 [ 2559.879191][ T253] netlink_unicast+0x449/0x710 [ 2559.879191][ T253] netlink_sendmsg+0x723/0xbe0 [ 2559.879191][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2559.879191][ T253] ___sys_sendmsg+0xee/0x170 [ 2559.879191][ T253] __sys_sendmsg+0xcd/0x170 [ 2559.879191][ T253] do_syscall_64+0xc6/0x1e0 [ 2559.879191][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2559.879191][ T253] [ 2559.881367][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2559.881367][ T253] netdev_get_by_index+0x5e/0x80 [ 2559.881367][ T253] fib6_nh_init+0x3d8/0x1580 [ 2559.881367][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2559.881367][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2559.881367][ T253] ipv6_add_addr+0x411/0x2000 [ 2559.881367][ T253] inet6_addr_add+0x30e/0xa40 [ 2559.881367][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2559.881367][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2559.881367][ T253] netlink_rcv_skb+0x130/0x360 [ 2559.881367][ T253] netlink_unicast+0x449/0x710 [ 2559.881367][ T253] netlink_sendmsg+0x723/0xbe0 [ 2559.881367][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2559.881367][ T253] ___sys_sendmsg+0xee/0x170 [ 2559.881367][ T253] __sys_sendmsg+0xcd/0x170 [ 2559.881367][ T253] do_syscall_64+0xc6/0x1e0 [ 2559.881367][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2559.881367][ T253] [ 2559.883568][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2559.883568][ T253] netdev_get_by_index+0x5e/0x80 [ 2559.883568][ T253] fib6_nh_init+0x3d8/0x1580 [ 2559.883568][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2559.883568][ T253] ip6_route_add+0x1c/0x140 [ 2559.883568][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2559.883568][ T253] addrconf_add_dev+0xe2/0x170 [ 2559.883568][ T253] inet6_addr_add+0x12f/0xa40 [ 2559.883568][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2559.883568][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2559.883568][ T253] netlink_rcv_skb+0x130/0x360 [ 2559.883568][ T253] netlink_unicast+0x449/0x710 [ 2559.883568][ T253] netlink_sendmsg+0x723/0xbe0 [ 2559.883568][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2559.883568][ T253] ___sys_sendmsg+0xee/0x170 [ 2559.883568][ T253] __sys_sendmsg+0xcd/0x170 [ 2559.883568][ T253] do_syscall_64+0xc6/0x1e0 [ 2559.883568][ T253] [ 2559.885868][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2559.885868][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2559.885868][ T253] ipv6_find_idev+0x102/0x170 [ 2559.885868][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2559.885868][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2559.885868][ T253] netlink_rcv_skb+0x130/0x360 [ 2559.885868][ T253] netlink_unicast+0x449/0x710 [ 2559.885868][ T253] netlink_sendmsg+0x723/0xbe0 [ 2559.885868][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2559.885868][ T253] ___sys_sendmsg+0xee/0x170 [ 2559.885868][ T253] __sys_sendmsg+0xcd/0x170 [ 2559.885868][ T253] do_syscall_64+0xc6/0x1e0 [ 2559.885868][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2559.885868][ T253] [ 2559.887602][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2559.887602][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2559.887602][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2559.887602][ T253] ipv6_find_idev+0x102/0x170 [ 2559.887602][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2559.887602][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2559.887602][ T253] netlink_rcv_skb+0x130/0x360 [ 2559.887602][ T253] netlink_unicast+0x449/0x710 [ 2559.887602][ T253] netlink_sendmsg+0x723/0xbe0 [ 2559.887602][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2559.887602][ T253] ___sys_sendmsg+0xee/0x170 [ 2559.887602][ T253] __sys_sendmsg+0xcd/0x170 [ 2559.887602][ T253] do_syscall_64+0xc6/0x1e0 [ 2559.887602][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2559.887602][ T253] [ 2570.010314][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2570.010803][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2570.010803][ T253] dst_init+0x84/0x4a0 [ 2570.010803][ T253] dst_alloc+0x97/0x150 [ 2570.010803][ T253] ip6_dst_alloc+0x23/0x90 [ 2570.010803][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2570.010803][ T253] ip6_pol_route+0x56f/0x840 [ 2570.010803][ T253] fib6_rule_lookup+0x334/0x630 [ 2570.010803][ T253] ip6_route_output_flags+0x259/0x480 [ 2570.010803][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2570.010803][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2570.010803][ T253] netlink_rcv_skb+0x130/0x360 [ 2570.010803][ T253] netlink_unicast+0x449/0x710 [ 2570.010803][ T253] netlink_sendmsg+0x723/0xbe0 [ 2570.010803][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2570.010803][ T253] ___sys_sendmsg+0xee/0x170 [ 2570.010803][ T253] __sys_sendmsg+0xcd/0x170 [ 2570.010803][ T253] do_syscall_64+0xc6/0x1e0 [ 2570.010803][ T253] [ 2570.012995][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2570.012995][ T253] netdev_get_by_index+0x5e/0x80 [ 2570.012995][ T253] fib6_nh_init+0x3d8/0x1580 [ 2570.012995][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2570.012995][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2570.012995][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2570.012995][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2570.012995][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2570.012995][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2570.012995][ T253] addrconf_dad_begin+0x310/0x670 [ 2570.012995][ T253] addrconf_dad_work+0x10b/0xab0 [ 2570.012995][ T253] process_one_work+0x84d/0x18a0 [ 2570.012995][ T253] worker_thread+0x587/0xd30 [ 2570.012995][ T253] kthread+0x28a/0x350 [ 2570.012995][ T253] ret_from_fork+0x31/0x70 [ 2570.012995][ T253] ret_from_fork_asm+0x1a/0x30 [ 2570.012995][ T253] [ 2570.015135][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2570.015135][ T253] netdev_get_by_index+0x5e/0x80 [ 2570.015135][ T253] fib6_nh_init+0x3d8/0x1580 [ 2570.015135][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2570.015135][ T253] ip6_route_add+0x1c/0x140 [ 2570.015135][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2570.015135][ T253] inet6_addr_add+0x4f8/0xa40 [ 2570.015135][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2570.015135][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2570.015135][ T253] netlink_rcv_skb+0x130/0x360 [ 2570.015135][ T253] netlink_unicast+0x449/0x710 [ 2570.015135][ T253] netlink_sendmsg+0x723/0xbe0 [ 2570.015135][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2570.015135][ T253] ___sys_sendmsg+0xee/0x170 [ 2570.015135][ T253] __sys_sendmsg+0xcd/0x170 [ 2570.015135][ T253] do_syscall_64+0xc6/0x1e0 [ 2570.015135][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2570.015135][ T253] [ 2570.017479][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2570.017479][ T253] netdev_get_by_index+0x5e/0x80 [ 2570.017479][ T253] fib6_nh_init+0x3d8/0x1580 [ 2570.017479][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2570.017479][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2570.017479][ T253] ipv6_add_addr+0x411/0x2000 [ 2570.017479][ T253] inet6_addr_add+0x30e/0xa40 [ 2570.017479][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2570.017479][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2570.017479][ T253] netlink_rcv_skb+0x130/0x360 [ 2570.017479][ T253] netlink_unicast+0x449/0x710 [ 2570.017479][ T253] netlink_sendmsg+0x723/0xbe0 [ 2570.017479][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2570.017479][ T253] ___sys_sendmsg+0xee/0x170 [ 2570.017479][ T253] __sys_sendmsg+0xcd/0x170 [ 2570.017479][ T253] do_syscall_64+0xc6/0x1e0 [ 2570.017479][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2570.017479][ T253] [ 2570.019716][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2570.019716][ T253] netdev_get_by_index+0x5e/0x80 [ 2570.019716][ T253] fib6_nh_init+0x3d8/0x1580 [ 2570.019716][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2570.019716][ T253] ip6_route_add+0x1c/0x140 [ 2570.019716][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2570.019716][ T253] addrconf_add_dev+0xe2/0x170 [ 2570.019716][ T253] inet6_addr_add+0x12f/0xa40 [ 2570.019716][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2570.019716][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2570.019716][ T253] netlink_rcv_skb+0x130/0x360 [ 2570.019716][ T253] netlink_unicast+0x449/0x710 [ 2570.019716][ T253] netlink_sendmsg+0x723/0xbe0 [ 2570.019716][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2570.019716][ T253] ___sys_sendmsg+0xee/0x170 [ 2570.019716][ T253] __sys_sendmsg+0xcd/0x170 [ 2570.019716][ T253] do_syscall_64+0xc6/0x1e0 [ 2570.019716][ T253] [ 2570.021910][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2570.021910][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2570.021910][ T253] ipv6_find_idev+0x102/0x170 [ 2570.021910][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2570.021910][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2570.021910][ T253] netlink_rcv_skb+0x130/0x360 [ 2570.021910][ T253] netlink_unicast+0x449/0x710 [ 2570.021910][ T253] netlink_sendmsg+0x723/0xbe0 [ 2570.021910][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2570.021910][ T253] ___sys_sendmsg+0xee/0x170 [ 2570.021910][ T253] __sys_sendmsg+0xcd/0x170 [ 2570.021910][ T253] do_syscall_64+0xc6/0x1e0 [ 2570.021910][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2570.021910][ T253] [ 2570.023629][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2570.023629][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2570.023629][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2570.023629][ T253] ipv6_find_idev+0x102/0x170 [ 2570.023629][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2570.023629][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2570.023629][ T253] netlink_rcv_skb+0x130/0x360 [ 2570.023629][ T253] netlink_unicast+0x449/0x710 [ 2570.023629][ T253] netlink_sendmsg+0x723/0xbe0 [ 2570.023629][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2570.023629][ T253] ___sys_sendmsg+0xee/0x170 [ 2570.023629][ T253] __sys_sendmsg+0xcd/0x170 [ 2570.023629][ T253] do_syscall_64+0xc6/0x1e0 [ 2570.023629][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2570.023629][ T253] [ 2580.274305][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2580.274991][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2580.274991][ T253] dst_init+0x84/0x4a0 [ 2580.274991][ T253] dst_alloc+0x97/0x150 [ 2580.274991][ T253] ip6_dst_alloc+0x23/0x90 [ 2580.274991][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2580.274991][ T253] ip6_pol_route+0x56f/0x840 [ 2580.274991][ T253] fib6_rule_lookup+0x334/0x630 [ 2580.274991][ T253] ip6_route_output_flags+0x259/0x480 [ 2580.274991][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2580.274991][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2580.274991][ T253] netlink_rcv_skb+0x130/0x360 [ 2580.274991][ T253] netlink_unicast+0x449/0x710 [ 2580.274991][ T253] netlink_sendmsg+0x723/0xbe0 [ 2580.274991][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2580.274991][ T253] ___sys_sendmsg+0xee/0x170 [ 2580.274991][ T253] __sys_sendmsg+0xcd/0x170 [ 2580.274991][ T253] do_syscall_64+0xc6/0x1e0 [ 2580.274991][ T253] [ 2580.277200][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2580.277200][ T253] netdev_get_by_index+0x5e/0x80 [ 2580.277200][ T253] fib6_nh_init+0x3d8/0x1580 [ 2580.277200][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2580.277200][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2580.277200][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2580.277200][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2580.277200][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2580.277200][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2580.277200][ T253] addrconf_dad_begin+0x310/0x670 [ 2580.277200][ T253] addrconf_dad_work+0x10b/0xab0 [ 2580.277200][ T253] process_one_work+0x84d/0x18a0 [ 2580.277200][ T253] worker_thread+0x587/0xd30 [ 2580.277200][ T253] kthread+0x28a/0x350 [ 2580.277200][ T253] ret_from_fork+0x31/0x70 [ 2580.277200][ T253] ret_from_fork_asm+0x1a/0x30 [ 2580.277200][ T253] [ 2580.279346][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2580.279346][ T253] netdev_get_by_index+0x5e/0x80 [ 2580.279346][ T253] fib6_nh_init+0x3d8/0x1580 [ 2580.279346][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2580.279346][ T253] ip6_route_add+0x1c/0x140 [ 2580.279346][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2580.279346][ T253] inet6_addr_add+0x4f8/0xa40 [ 2580.279346][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2580.279346][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2580.279346][ T253] netlink_rcv_skb+0x130/0x360 [ 2580.279346][ T253] netlink_unicast+0x449/0x710 [ 2580.279346][ T253] netlink_sendmsg+0x723/0xbe0 [ 2580.279346][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2580.279346][ T253] ___sys_sendmsg+0xee/0x170 [ 2580.279346][ T253] __sys_sendmsg+0xcd/0x170 [ 2580.279346][ T253] do_syscall_64+0xc6/0x1e0 [ 2580.279346][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2580.279346][ T253] [ 2580.281590][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2580.281590][ T253] netdev_get_by_index+0x5e/0x80 [ 2580.281590][ T253] fib6_nh_init+0x3d8/0x1580 [ 2580.281590][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2580.281590][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2580.281590][ T253] ipv6_add_addr+0x411/0x2000 [ 2580.281590][ T253] inet6_addr_add+0x30e/0xa40 [ 2580.281590][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2580.281590][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2580.281590][ T253] netlink_rcv_skb+0x130/0x360 [ 2580.281590][ T253] netlink_unicast+0x449/0x710 [ 2580.281590][ T253] netlink_sendmsg+0x723/0xbe0 [ 2580.281590][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2580.281590][ T253] ___sys_sendmsg+0xee/0x170 [ 2580.281590][ T253] __sys_sendmsg+0xcd/0x170 [ 2580.281590][ T253] do_syscall_64+0xc6/0x1e0 [ 2580.281590][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2580.281590][ T253] [ 2580.283813][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2580.283813][ T253] netdev_get_by_index+0x5e/0x80 [ 2580.283813][ T253] fib6_nh_init+0x3d8/0x1580 [ 2580.283813][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2580.283813][ T253] ip6_route_add+0x1c/0x140 [ 2580.283813][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2580.283813][ T253] addrconf_add_dev+0xe2/0x170 [ 2580.283813][ T253] inet6_addr_add+0x12f/0xa40 [ 2580.283813][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2580.283813][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2580.283813][ T253] netlink_rcv_skb+0x130/0x360 [ 2580.283813][ T253] netlink_unicast+0x449/0x710 [ 2580.283813][ T253] netlink_sendmsg+0x723/0xbe0 [ 2580.283813][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2580.283813][ T253] ___sys_sendmsg+0xee/0x170 [ 2580.283813][ T253] __sys_sendmsg+0xcd/0x170 [ 2580.283813][ T253] do_syscall_64+0xc6/0x1e0 [ 2580.283813][ T253] [ 2580.285977][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2580.285977][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2580.285977][ T253] ipv6_find_idev+0x102/0x170 [ 2580.285977][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2580.285977][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2580.285977][ T253] netlink_rcv_skb+0x130/0x360 [ 2580.285977][ T253] netlink_unicast+0x449/0x710 [ 2580.285977][ T253] netlink_sendmsg+0x723/0xbe0 [ 2580.285977][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2580.285977][ T253] ___sys_sendmsg+0xee/0x170 [ 2580.285977][ T253] __sys_sendmsg+0xcd/0x170 [ 2580.285977][ T253] do_syscall_64+0xc6/0x1e0 [ 2580.285977][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2580.285977][ T253] [ 2580.287712][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2580.287712][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2580.287712][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2580.287712][ T253] ipv6_find_idev+0x102/0x170 [ 2580.287712][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2580.287712][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2580.287712][ T253] netlink_rcv_skb+0x130/0x360 [ 2580.287712][ T253] netlink_unicast+0x449/0x710 [ 2580.287712][ T253] netlink_sendmsg+0x723/0xbe0 [ 2580.287712][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2580.287712][ T253] ___sys_sendmsg+0xee/0x170 [ 2580.287712][ T253] __sys_sendmsg+0xcd/0x170 [ 2580.287712][ T253] do_syscall_64+0xc6/0x1e0 [ 2580.287712][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2580.287712][ T253] [ 2590.538241][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2590.538727][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2590.538727][ T253] dst_init+0x84/0x4a0 [ 2590.538727][ T253] dst_alloc+0x97/0x150 [ 2590.538727][ T253] ip6_dst_alloc+0x23/0x90 [ 2590.538727][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2590.538727][ T253] ip6_pol_route+0x56f/0x840 [ 2590.538727][ T253] fib6_rule_lookup+0x334/0x630 [ 2590.538727][ T253] ip6_route_output_flags+0x259/0x480 [ 2590.538727][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2590.538727][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2590.538727][ T253] netlink_rcv_skb+0x130/0x360 [ 2590.538727][ T253] netlink_unicast+0x449/0x710 [ 2590.538727][ T253] netlink_sendmsg+0x723/0xbe0 [ 2590.538727][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2590.538727][ T253] ___sys_sendmsg+0xee/0x170 [ 2590.538727][ T253] __sys_sendmsg+0xcd/0x170 [ 2590.538727][ T253] do_syscall_64+0xc6/0x1e0 [ 2590.538727][ T253] [ 2590.540922][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2590.540922][ T253] netdev_get_by_index+0x5e/0x80 [ 2590.540922][ T253] fib6_nh_init+0x3d8/0x1580 [ 2590.540922][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2590.540922][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2590.540922][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2590.540922][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2590.540922][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2590.540922][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2590.540922][ T253] addrconf_dad_begin+0x310/0x670 [ 2590.540922][ T253] addrconf_dad_work+0x10b/0xab0 [ 2590.540922][ T253] process_one_work+0x84d/0x18a0 [ 2590.540922][ T253] worker_thread+0x587/0xd30 [ 2590.540922][ T253] kthread+0x28a/0x350 [ 2590.540922][ T253] ret_from_fork+0x31/0x70 [ 2590.540922][ T253] ret_from_fork_asm+0x1a/0x30 [ 2590.540922][ T253] [ 2590.543006][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2590.543006][ T253] netdev_get_by_index+0x5e/0x80 [ 2590.543006][ T253] fib6_nh_init+0x3d8/0x1580 [ 2590.543006][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2590.543006][ T253] ip6_route_add+0x1c/0x140 [ 2590.543006][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2590.543006][ T253] inet6_addr_add+0x4f8/0xa40 [ 2590.543006][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2590.543006][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2590.543006][ T253] netlink_rcv_skb+0x130/0x360 [ 2590.543006][ T253] netlink_unicast+0x449/0x710 [ 2590.543006][ T253] netlink_sendmsg+0x723/0xbe0 [ 2590.543006][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2590.543006][ T253] ___sys_sendmsg+0xee/0x170 [ 2590.543006][ T253] __sys_sendmsg+0xcd/0x170 [ 2590.543006][ T253] do_syscall_64+0xc6/0x1e0 [ 2590.543006][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2590.543006][ T253] [ 2590.545245][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2590.545245][ T253] netdev_get_by_index+0x5e/0x80 [ 2590.545245][ T253] fib6_nh_init+0x3d8/0x1580 [ 2590.545245][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2590.545245][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2590.545245][ T253] ipv6_add_addr+0x411/0x2000 [ 2590.545245][ T253] inet6_addr_add+0x30e/0xa40 [ 2590.545245][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2590.545245][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2590.545245][ T253] netlink_rcv_skb+0x130/0x360 [ 2590.545245][ T253] netlink_unicast+0x449/0x710 [ 2590.545245][ T253] netlink_sendmsg+0x723/0xbe0 [ 2590.545245][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2590.545245][ T253] ___sys_sendmsg+0xee/0x170 [ 2590.545245][ T253] __sys_sendmsg+0xcd/0x170 [ 2590.545245][ T253] do_syscall_64+0xc6/0x1e0 [ 2590.545245][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2590.545245][ T253] [ 2590.547476][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2590.547476][ T253] netdev_get_by_index+0x5e/0x80 [ 2590.547476][ T253] fib6_nh_init+0x3d8/0x1580 [ 2590.547476][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2590.547476][ T253] ip6_route_add+0x1c/0x140 [ 2590.547476][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2590.547476][ T253] addrconf_add_dev+0xe2/0x170 [ 2590.547476][ T253] inet6_addr_add+0x12f/0xa40 [ 2590.547476][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2590.547476][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2590.547476][ T253] netlink_rcv_skb+0x130/0x360 [ 2590.547476][ T253] netlink_unicast+0x449/0x710 [ 2590.547476][ T253] netlink_sendmsg+0x723/0xbe0 [ 2590.547476][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2590.547476][ T253] ___sys_sendmsg+0xee/0x170 [ 2590.547476][ T253] __sys_sendmsg+0xcd/0x170 [ 2590.547476][ T253] do_syscall_64+0xc6/0x1e0 [ 2590.547476][ T253] [ 2590.549701][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2590.549701][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2590.549701][ T253] ipv6_find_idev+0x102/0x170 [ 2590.549701][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2590.549701][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2590.549701][ T253] netlink_rcv_skb+0x130/0x360 [ 2590.549701][ T253] netlink_unicast+0x449/0x710 [ 2590.549701][ T253] netlink_sendmsg+0x723/0xbe0 [ 2590.549701][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2590.549701][ T253] ___sys_sendmsg+0xee/0x170 [ 2590.549701][ T253] __sys_sendmsg+0xcd/0x170 [ 2590.549701][ T253] do_syscall_64+0xc6/0x1e0 [ 2590.549701][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2590.549701][ T253] [ 2590.551435][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2590.551435][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2590.551435][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2590.551435][ T253] ipv6_find_idev+0x102/0x170 [ 2590.551435][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2590.551435][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2590.551435][ T253] netlink_rcv_skb+0x130/0x360 [ 2590.551435][ T253] netlink_unicast+0x449/0x710 [ 2590.551435][ T253] netlink_sendmsg+0x723/0xbe0 [ 2590.551435][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2590.551435][ T253] ___sys_sendmsg+0xee/0x170 [ 2590.551435][ T253] __sys_sendmsg+0xcd/0x170 [ 2590.551435][ T253] do_syscall_64+0xc6/0x1e0 [ 2590.551435][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2590.551435][ T253] [ 2600.714306][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2600.714779][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2600.714779][ T253] dst_init+0x84/0x4a0 [ 2600.714779][ T253] dst_alloc+0x97/0x150 [ 2600.714779][ T253] ip6_dst_alloc+0x23/0x90 [ 2600.714779][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2600.714779][ T253] ip6_pol_route+0x56f/0x840 [ 2600.714779][ T253] fib6_rule_lookup+0x334/0x630 [ 2600.714779][ T253] ip6_route_output_flags+0x259/0x480 [ 2600.714779][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2600.714779][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2600.714779][ T253] netlink_rcv_skb+0x130/0x360 [ 2600.714779][ T253] netlink_unicast+0x449/0x710 [ 2600.714779][ T253] netlink_sendmsg+0x723/0xbe0 [ 2600.714779][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2600.714779][ T253] ___sys_sendmsg+0xee/0x170 [ 2600.714779][ T253] __sys_sendmsg+0xcd/0x170 [ 2600.714779][ T253] do_syscall_64+0xc6/0x1e0 [ 2600.714779][ T253] [ 2600.716987][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2600.716987][ T253] netdev_get_by_index+0x5e/0x80 [ 2600.716987][ T253] fib6_nh_init+0x3d8/0x1580 [ 2600.716987][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2600.716987][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2600.716987][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2600.716987][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2600.716987][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2600.716987][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2600.716987][ T253] addrconf_dad_begin+0x310/0x670 [ 2600.716987][ T253] addrconf_dad_work+0x10b/0xab0 [ 2600.716987][ T253] process_one_work+0x84d/0x18a0 [ 2600.716987][ T253] worker_thread+0x587/0xd30 [ 2600.716987][ T253] kthread+0x28a/0x350 [ 2600.716987][ T253] ret_from_fork+0x31/0x70 [ 2600.716987][ T253] ret_from_fork_asm+0x1a/0x30 [ 2600.716987][ T253] [ 2600.719179][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2600.719179][ T253] netdev_get_by_index+0x5e/0x80 [ 2600.719179][ T253] fib6_nh_init+0x3d8/0x1580 [ 2600.719179][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2600.719179][ T253] ip6_route_add+0x1c/0x140 [ 2600.719179][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2600.719179][ T253] inet6_addr_add+0x4f8/0xa40 [ 2600.719179][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2600.719179][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2600.719179][ T253] netlink_rcv_skb+0x130/0x360 [ 2600.719179][ T253] netlink_unicast+0x449/0x710 [ 2600.719179][ T253] netlink_sendmsg+0x723/0xbe0 [ 2600.719179][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2600.719179][ T253] ___sys_sendmsg+0xee/0x170 [ 2600.719179][ T253] __sys_sendmsg+0xcd/0x170 [ 2600.719179][ T253] do_syscall_64+0xc6/0x1e0 [ 2600.719179][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2600.719179][ T253] [ 2600.721424][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2600.721424][ T253] netdev_get_by_index+0x5e/0x80 [ 2600.721424][ T253] fib6_nh_init+0x3d8/0x1580 [ 2600.721424][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2600.721424][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2600.721424][ T253] ipv6_add_addr+0x411/0x2000 [ 2600.721424][ T253] inet6_addr_add+0x30e/0xa40 [ 2600.721424][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2600.721424][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2600.721424][ T253] netlink_rcv_skb+0x130/0x360 [ 2600.721424][ T253] netlink_unicast+0x449/0x710 [ 2600.721424][ T253] netlink_sendmsg+0x723/0xbe0 [ 2600.721424][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2600.721424][ T253] ___sys_sendmsg+0xee/0x170 [ 2600.721424][ T253] __sys_sendmsg+0xcd/0x170 [ 2600.721424][ T253] do_syscall_64+0xc6/0x1e0 [ 2600.721424][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2600.721424][ T253] [ 2600.723681][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2600.723681][ T253] netdev_get_by_index+0x5e/0x80 [ 2600.723681][ T253] fib6_nh_init+0x3d8/0x1580 [ 2600.723681][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2600.723681][ T253] ip6_route_add+0x1c/0x140 [ 2600.723681][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2600.723681][ T253] addrconf_add_dev+0xe2/0x170 [ 2600.723681][ T253] inet6_addr_add+0x12f/0xa40 [ 2600.723681][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2600.723681][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2600.723681][ T253] netlink_rcv_skb+0x130/0x360 [ 2600.723681][ T253] netlink_unicast+0x449/0x710 [ 2600.723681][ T253] netlink_sendmsg+0x723/0xbe0 [ 2600.723681][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2600.723681][ T253] ___sys_sendmsg+0xee/0x170 [ 2600.723681][ T253] __sys_sendmsg+0xcd/0x170 [ 2600.723681][ T253] do_syscall_64+0xc6/0x1e0 [ 2600.723681][ T253] [ 2600.725885][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2600.725885][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2600.725885][ T253] ipv6_find_idev+0x102/0x170 [ 2600.725885][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2600.725885][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2600.725885][ T253] netlink_rcv_skb+0x130/0x360 [ 2600.725885][ T253] netlink_unicast+0x449/0x710 [ 2600.725885][ T253] netlink_sendmsg+0x723/0xbe0 [ 2600.725885][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2600.725885][ T253] ___sys_sendmsg+0xee/0x170 [ 2600.725885][ T253] __sys_sendmsg+0xcd/0x170 [ 2600.725885][ T253] do_syscall_64+0xc6/0x1e0 [ 2600.725885][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2600.725885][ T253] [ 2600.727619][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2600.727619][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2600.727619][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2600.727619][ T253] ipv6_find_idev+0x102/0x170 [ 2600.727619][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2600.727619][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2600.727619][ T253] netlink_rcv_skb+0x130/0x360 [ 2600.727619][ T253] netlink_unicast+0x449/0x710 [ 2600.727619][ T253] netlink_sendmsg+0x723/0xbe0 [ 2600.727619][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2600.727619][ T253] ___sys_sendmsg+0xee/0x170 [ 2600.727619][ T253] __sys_sendmsg+0xcd/0x170 [ 2600.727619][ T253] do_syscall_64+0xc6/0x1e0 [ 2600.727619][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2600.727619][ T253] [ 2610.970311][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2610.970789][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2610.970789][ T253] dst_init+0x84/0x4a0 [ 2610.970789][ T253] dst_alloc+0x97/0x150 [ 2610.970789][ T253] ip6_dst_alloc+0x23/0x90 [ 2610.970789][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2610.970789][ T253] ip6_pol_route+0x56f/0x840 [ 2610.970789][ T253] fib6_rule_lookup+0x334/0x630 [ 2610.970789][ T253] ip6_route_output_flags+0x259/0x480 [ 2610.970789][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2610.970789][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2610.970789][ T253] netlink_rcv_skb+0x130/0x360 [ 2610.970789][ T253] netlink_unicast+0x449/0x710 [ 2610.970789][ T253] netlink_sendmsg+0x723/0xbe0 [ 2610.970789][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2610.970789][ T253] ___sys_sendmsg+0xee/0x170 [ 2610.970789][ T253] __sys_sendmsg+0xcd/0x170 [ 2610.970789][ T253] do_syscall_64+0xc6/0x1e0 [ 2610.970789][ T253] [ 2610.972985][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2610.972985][ T253] netdev_get_by_index+0x5e/0x80 [ 2610.972985][ T253] fib6_nh_init+0x3d8/0x1580 [ 2610.972985][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2610.972985][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2610.972985][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2610.972985][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2610.972985][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2610.972985][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2610.972985][ T253] addrconf_dad_begin+0x310/0x670 [ 2610.972985][ T253] addrconf_dad_work+0x10b/0xab0 [ 2610.972985][ T253] process_one_work+0x84d/0x18a0 [ 2610.972985][ T253] worker_thread+0x587/0xd30 [ 2610.972985][ T253] kthread+0x28a/0x350 [ 2610.972985][ T253] ret_from_fork+0x31/0x70 [ 2610.972985][ T253] ret_from_fork_asm+0x1a/0x30 [ 2610.972985][ T253] [ 2610.975121][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2610.975121][ T253] netdev_get_by_index+0x5e/0x80 [ 2610.975121][ T253] fib6_nh_init+0x3d8/0x1580 [ 2610.975121][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2610.975121][ T253] ip6_route_add+0x1c/0x140 [ 2610.975121][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2610.975121][ T253] inet6_addr_add+0x4f8/0xa40 [ 2610.975121][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2610.975121][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2610.975121][ T253] netlink_rcv_skb+0x130/0x360 [ 2610.975121][ T253] netlink_unicast+0x449/0x710 [ 2610.975121][ T253] netlink_sendmsg+0x723/0xbe0 [ 2610.975121][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2610.975121][ T253] ___sys_sendmsg+0xee/0x170 [ 2610.975121][ T253] __sys_sendmsg+0xcd/0x170 [ 2610.975121][ T253] do_syscall_64+0xc6/0x1e0 [ 2610.975121][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2610.975121][ T253] [ 2610.977380][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2610.977380][ T253] netdev_get_by_index+0x5e/0x80 [ 2610.977380][ T253] fib6_nh_init+0x3d8/0x1580 [ 2610.977380][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2610.977380][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2610.977380][ T253] ipv6_add_addr+0x411/0x2000 [ 2610.977380][ T253] inet6_addr_add+0x30e/0xa40 [ 2610.977380][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2610.977380][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2610.977380][ T253] netlink_rcv_skb+0x130/0x360 [ 2610.977380][ T253] netlink_unicast+0x449/0x710 [ 2610.977380][ T253] netlink_sendmsg+0x723/0xbe0 [ 2610.977380][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2610.977380][ T253] ___sys_sendmsg+0xee/0x170 [ 2610.977380][ T253] __sys_sendmsg+0xcd/0x170 [ 2610.977380][ T253] do_syscall_64+0xc6/0x1e0 [ 2610.977380][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2610.977380][ T253] [ 2610.979640][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2610.979640][ T253] netdev_get_by_index+0x5e/0x80 [ 2610.979640][ T253] fib6_nh_init+0x3d8/0x1580 [ 2610.979640][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2610.979640][ T253] ip6_route_add+0x1c/0x140 [ 2610.979640][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2610.979640][ T253] addrconf_add_dev+0xe2/0x170 [ 2610.979640][ T253] inet6_addr_add+0x12f/0xa40 [ 2610.979640][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2610.979640][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2610.979640][ T253] netlink_rcv_skb+0x130/0x360 [ 2610.979640][ T253] netlink_unicast+0x449/0x710 [ 2610.979640][ T253] netlink_sendmsg+0x723/0xbe0 [ 2610.979640][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2610.979640][ T253] ___sys_sendmsg+0xee/0x170 [ 2610.979640][ T253] __sys_sendmsg+0xcd/0x170 [ 2610.979640][ T253] do_syscall_64+0xc6/0x1e0 [ 2610.979640][ T253] [ 2610.981833][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2610.981833][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2610.981833][ T253] ipv6_find_idev+0x102/0x170 [ 2610.981833][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2610.981833][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2610.981833][ T253] netlink_rcv_skb+0x130/0x360 [ 2610.981833][ T253] netlink_unicast+0x449/0x710 [ 2610.981833][ T253] netlink_sendmsg+0x723/0xbe0 [ 2610.981833][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2610.981833][ T253] ___sys_sendmsg+0xee/0x170 [ 2610.981833][ T253] __sys_sendmsg+0xcd/0x170 [ 2610.981833][ T253] do_syscall_64+0xc6/0x1e0 [ 2610.981833][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2610.981833][ T253] [ 2610.983555][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2610.983555][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2610.983555][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2610.983555][ T253] ipv6_find_idev+0x102/0x170 [ 2610.983555][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2610.983555][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2610.983555][ T253] netlink_rcv_skb+0x130/0x360 [ 2610.983555][ T253] netlink_unicast+0x449/0x710 [ 2610.983555][ T253] netlink_sendmsg+0x723/0xbe0 [ 2610.983555][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2610.983555][ T253] ___sys_sendmsg+0xee/0x170 [ 2610.983555][ T253] __sys_sendmsg+0xcd/0x170 [ 2610.983555][ T253] do_syscall_64+0xc6/0x1e0 [ 2610.983555][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2610.983555][ T253] [ 2621.122307][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2621.122784][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2621.122784][ T253] dst_init+0x84/0x4a0 [ 2621.122784][ T253] dst_alloc+0x97/0x150 [ 2621.122784][ T253] ip6_dst_alloc+0x23/0x90 [ 2621.122784][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2621.122784][ T253] ip6_pol_route+0x56f/0x840 [ 2621.122784][ T253] fib6_rule_lookup+0x334/0x630 [ 2621.122784][ T253] ip6_route_output_flags+0x259/0x480 [ 2621.122784][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2621.122784][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2621.122784][ T253] netlink_rcv_skb+0x130/0x360 [ 2621.122784][ T253] netlink_unicast+0x449/0x710 [ 2621.122784][ T253] netlink_sendmsg+0x723/0xbe0 [ 2621.122784][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2621.122784][ T253] ___sys_sendmsg+0xee/0x170 [ 2621.122784][ T253] __sys_sendmsg+0xcd/0x170 [ 2621.122784][ T253] do_syscall_64+0xc6/0x1e0 [ 2621.122784][ T253] [ 2621.124978][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2621.124978][ T253] netdev_get_by_index+0x5e/0x80 [ 2621.124978][ T253] fib6_nh_init+0x3d8/0x1580 [ 2621.124978][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2621.124978][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2621.124978][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2621.124978][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2621.124978][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2621.124978][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2621.124978][ T253] addrconf_dad_begin+0x310/0x670 [ 2621.124978][ T253] addrconf_dad_work+0x10b/0xab0 [ 2621.124978][ T253] process_one_work+0x84d/0x18a0 [ 2621.124978][ T253] worker_thread+0x587/0xd30 [ 2621.124978][ T253] kthread+0x28a/0x350 [ 2621.124978][ T253] ret_from_fork+0x31/0x70 [ 2621.124978][ T253] ret_from_fork_asm+0x1a/0x30 [ 2621.124978][ T253] [ 2621.127141][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2621.127141][ T253] netdev_get_by_index+0x5e/0x80 [ 2621.127141][ T253] fib6_nh_init+0x3d8/0x1580 [ 2621.127141][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2621.127141][ T253] ip6_route_add+0x1c/0x140 [ 2621.127141][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2621.127141][ T253] inet6_addr_add+0x4f8/0xa40 [ 2621.127141][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2621.127141][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2621.127141][ T253] netlink_rcv_skb+0x130/0x360 [ 2621.127141][ T253] netlink_unicast+0x449/0x710 [ 2621.127141][ T253] netlink_sendmsg+0x723/0xbe0 [ 2621.127141][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2621.127141][ T253] ___sys_sendmsg+0xee/0x170 [ 2621.127141][ T253] __sys_sendmsg+0xcd/0x170 [ 2621.127141][ T253] do_syscall_64+0xc6/0x1e0 [ 2621.127141][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2621.127141][ T253] [ 2621.129380][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2621.129380][ T253] netdev_get_by_index+0x5e/0x80 [ 2621.129380][ T253] fib6_nh_init+0x3d8/0x1580 [ 2621.129380][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2621.129380][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2621.129380][ T253] ipv6_add_addr+0x411/0x2000 [ 2621.129380][ T253] inet6_addr_add+0x30e/0xa40 [ 2621.129380][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2621.129380][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2621.129380][ T253] netlink_rcv_skb+0x130/0x360 [ 2621.129380][ T253] netlink_unicast+0x449/0x710 [ 2621.129380][ T253] netlink_sendmsg+0x723/0xbe0 [ 2621.129380][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2621.129380][ T253] ___sys_sendmsg+0xee/0x170 [ 2621.129380][ T253] __sys_sendmsg+0xcd/0x170 [ 2621.129380][ T253] do_syscall_64+0xc6/0x1e0 [ 2621.129380][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2621.129380][ T253] [ 2621.131620][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2621.131620][ T253] netdev_get_by_index+0x5e/0x80 [ 2621.131620][ T253] fib6_nh_init+0x3d8/0x1580 [ 2621.131620][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2621.131620][ T253] ip6_route_add+0x1c/0x140 [ 2621.131620][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2621.131620][ T253] addrconf_add_dev+0xe2/0x170 [ 2621.131620][ T253] inet6_addr_add+0x12f/0xa40 [ 2621.131620][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2621.131620][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2621.131620][ T253] netlink_rcv_skb+0x130/0x360 [ 2621.131620][ T253] netlink_unicast+0x449/0x710 [ 2621.131620][ T253] netlink_sendmsg+0x723/0xbe0 [ 2621.131620][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2621.131620][ T253] ___sys_sendmsg+0xee/0x170 [ 2621.131620][ T253] __sys_sendmsg+0xcd/0x170 [ 2621.131620][ T253] do_syscall_64+0xc6/0x1e0 [ 2621.131620][ T253] [ 2621.133816][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2621.133816][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2621.133816][ T253] ipv6_find_idev+0x102/0x170 [ 2621.133816][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2621.133816][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2621.133816][ T253] netlink_rcv_skb+0x130/0x360 [ 2621.133816][ T253] netlink_unicast+0x449/0x710 [ 2621.133816][ T253] netlink_sendmsg+0x723/0xbe0 [ 2621.133816][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2621.133816][ T253] ___sys_sendmsg+0xee/0x170 [ 2621.133816][ T253] __sys_sendmsg+0xcd/0x170 [ 2621.133816][ T253] do_syscall_64+0xc6/0x1e0 [ 2621.133816][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2621.133816][ T253] [ 2621.135541][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2621.135541][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2621.135541][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2621.135541][ T253] ipv6_find_idev+0x102/0x170 [ 2621.135541][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2621.135541][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2621.135541][ T253] netlink_rcv_skb+0x130/0x360 [ 2621.135541][ T253] netlink_unicast+0x449/0x710 [ 2621.135541][ T253] netlink_sendmsg+0x723/0xbe0 [ 2621.135541][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2621.135541][ T253] ___sys_sendmsg+0xee/0x170 [ 2621.135541][ T253] __sys_sendmsg+0xcd/0x170 [ 2621.135541][ T253] do_syscall_64+0xc6/0x1e0 [ 2621.135541][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2621.135541][ T253] [ 2631.194306][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2631.194801][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2631.194801][ T253] dst_init+0x84/0x4a0 [ 2631.194801][ T253] dst_alloc+0x97/0x150 [ 2631.194801][ T253] ip6_dst_alloc+0x23/0x90 [ 2631.194801][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2631.194801][ T253] ip6_pol_route+0x56f/0x840 [ 2631.194801][ T253] fib6_rule_lookup+0x334/0x630 [ 2631.194801][ T253] ip6_route_output_flags+0x259/0x480 [ 2631.194801][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2631.194801][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2631.194801][ T253] netlink_rcv_skb+0x130/0x360 [ 2631.194801][ T253] netlink_unicast+0x449/0x710 [ 2631.194801][ T253] netlink_sendmsg+0x723/0xbe0 [ 2631.194801][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2631.194801][ T253] ___sys_sendmsg+0xee/0x170 [ 2631.194801][ T253] __sys_sendmsg+0xcd/0x170 [ 2631.194801][ T253] do_syscall_64+0xc6/0x1e0 [ 2631.194801][ T253] [ 2631.197056][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2631.197056][ T253] netdev_get_by_index+0x5e/0x80 [ 2631.197056][ T253] fib6_nh_init+0x3d8/0x1580 [ 2631.197056][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2631.197056][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2631.197056][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2631.197056][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2631.197056][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2631.197056][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2631.197056][ T253] addrconf_dad_begin+0x310/0x670 [ 2631.197056][ T253] addrconf_dad_work+0x10b/0xab0 [ 2631.197056][ T253] process_one_work+0x84d/0x18a0 [ 2631.197056][ T253] worker_thread+0x587/0xd30 [ 2631.197056][ T253] kthread+0x28a/0x350 [ 2631.197056][ T253] ret_from_fork+0x31/0x70 [ 2631.197056][ T253] ret_from_fork_asm+0x1a/0x30 [ 2631.197056][ T253] [ 2631.199214][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2631.199214][ T253] netdev_get_by_index+0x5e/0x80 [ 2631.199214][ T253] fib6_nh_init+0x3d8/0x1580 [ 2631.199214][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2631.199214][ T253] ip6_route_add+0x1c/0x140 [ 2631.199214][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2631.199214][ T253] inet6_addr_add+0x4f8/0xa40 [ 2631.199214][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2631.199214][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2631.199214][ T253] netlink_rcv_skb+0x130/0x360 [ 2631.199214][ T253] netlink_unicast+0x449/0x710 [ 2631.199214][ T253] netlink_sendmsg+0x723/0xbe0 [ 2631.199214][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2631.199214][ T253] ___sys_sendmsg+0xee/0x170 [ 2631.199214][ T253] __sys_sendmsg+0xcd/0x170 [ 2631.199214][ T253] do_syscall_64+0xc6/0x1e0 [ 2631.199214][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2631.199214][ T253] [ 2631.201450][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2631.201450][ T253] netdev_get_by_index+0x5e/0x80 [ 2631.201450][ T253] fib6_nh_init+0x3d8/0x1580 [ 2631.201450][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2631.201450][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2631.201450][ T253] ipv6_add_addr+0x411/0x2000 [ 2631.201450][ T253] inet6_addr_add+0x30e/0xa40 [ 2631.201450][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2631.201450][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2631.201450][ T253] netlink_rcv_skb+0x130/0x360 [ 2631.201450][ T253] netlink_unicast+0x449/0x710 [ 2631.201450][ T253] netlink_sendmsg+0x723/0xbe0 [ 2631.201450][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2631.201450][ T253] ___sys_sendmsg+0xee/0x170 [ 2631.201450][ T253] __sys_sendmsg+0xcd/0x170 [ 2631.201450][ T253] do_syscall_64+0xc6/0x1e0 [ 2631.201450][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2631.201450][ T253] [ 2631.203696][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2631.203696][ T253] netdev_get_by_index+0x5e/0x80 [ 2631.203696][ T253] fib6_nh_init+0x3d8/0x1580 [ 2631.203696][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2631.203696][ T253] ip6_route_add+0x1c/0x140 [ 2631.203696][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2631.203696][ T253] addrconf_add_dev+0xe2/0x170 [ 2631.203696][ T253] inet6_addr_add+0x12f/0xa40 [ 2631.203696][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2631.203696][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2631.203696][ T253] netlink_rcv_skb+0x130/0x360 [ 2631.203696][ T253] netlink_unicast+0x449/0x710 [ 2631.203696][ T253] netlink_sendmsg+0x723/0xbe0 [ 2631.203696][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2631.203696][ T253] ___sys_sendmsg+0xee/0x170 [ 2631.203696][ T253] __sys_sendmsg+0xcd/0x170 [ 2631.203696][ T253] do_syscall_64+0xc6/0x1e0 [ 2631.203696][ T253] [ 2631.205978][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2631.205978][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2631.205978][ T253] ipv6_find_idev+0x102/0x170 [ 2631.205978][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2631.205978][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2631.205978][ T253] netlink_rcv_skb+0x130/0x360 [ 2631.205978][ T253] netlink_unicast+0x449/0x710 [ 2631.205978][ T253] netlink_sendmsg+0x723/0xbe0 [ 2631.205978][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2631.205978][ T253] ___sys_sendmsg+0xee/0x170 [ 2631.205978][ T253] __sys_sendmsg+0xcd/0x170 [ 2631.205978][ T253] do_syscall_64+0xc6/0x1e0 [ 2631.205978][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2631.205978][ T253] [ 2631.207738][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2631.207738][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2631.207738][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2631.207738][ T253] ipv6_find_idev+0x102/0x170 [ 2631.207738][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2631.207738][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2631.207738][ T253] netlink_rcv_skb+0x130/0x360 [ 2631.207738][ T253] netlink_unicast+0x449/0x710 [ 2631.207738][ T253] netlink_sendmsg+0x723/0xbe0 [ 2631.207738][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2631.207738][ T253] ___sys_sendmsg+0xee/0x170 [ 2631.207738][ T253] __sys_sendmsg+0xcd/0x170 [ 2631.207738][ T253] do_syscall_64+0xc6/0x1e0 [ 2631.207738][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2631.207738][ T253] [ 2641.354296][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2641.354791][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2641.354791][ T253] dst_init+0x84/0x4a0 [ 2641.354791][ T253] dst_alloc+0x97/0x150 [ 2641.354791][ T253] ip6_dst_alloc+0x23/0x90 [ 2641.354791][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2641.354791][ T253] ip6_pol_route+0x56f/0x840 [ 2641.354791][ T253] fib6_rule_lookup+0x334/0x630 [ 2641.354791][ T253] ip6_route_output_flags+0x259/0x480 [ 2641.354791][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2641.354791][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2641.354791][ T253] netlink_rcv_skb+0x130/0x360 [ 2641.354791][ T253] netlink_unicast+0x449/0x710 [ 2641.354791][ T253] netlink_sendmsg+0x723/0xbe0 [ 2641.354791][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2641.354791][ T253] ___sys_sendmsg+0xee/0x170 [ 2641.354791][ T253] __sys_sendmsg+0xcd/0x170 [ 2641.354791][ T253] do_syscall_64+0xc6/0x1e0 [ 2641.354791][ T253] [ 2641.357041][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2641.357041][ T253] netdev_get_by_index+0x5e/0x80 [ 2641.357041][ T253] fib6_nh_init+0x3d8/0x1580 [ 2641.357041][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2641.357041][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2641.357041][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2641.357041][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2641.357041][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2641.357041][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2641.357041][ T253] addrconf_dad_begin+0x310/0x670 [ 2641.357041][ T253] addrconf_dad_work+0x10b/0xab0 [ 2641.357041][ T253] process_one_work+0x84d/0x18a0 [ 2641.357041][ T253] worker_thread+0x587/0xd30 [ 2641.357041][ T253] kthread+0x28a/0x350 [ 2641.357041][ T253] ret_from_fork+0x31/0x70 [ 2641.357041][ T253] ret_from_fork_asm+0x1a/0x30 [ 2641.357041][ T253] [ 2641.359210][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2641.359210][ T253] netdev_get_by_index+0x5e/0x80 [ 2641.359210][ T253] fib6_nh_init+0x3d8/0x1580 [ 2641.359210][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2641.359210][ T253] ip6_route_add+0x1c/0x140 [ 2641.359210][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2641.359210][ T253] inet6_addr_add+0x4f8/0xa40 [ 2641.359210][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2641.359210][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2641.359210][ T253] netlink_rcv_skb+0x130/0x360 [ 2641.359210][ T253] netlink_unicast+0x449/0x710 [ 2641.359210][ T253] netlink_sendmsg+0x723/0xbe0 [ 2641.359210][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2641.359210][ T253] ___sys_sendmsg+0xee/0x170 [ 2641.359210][ T253] __sys_sendmsg+0xcd/0x170 [ 2641.359210][ T253] do_syscall_64+0xc6/0x1e0 [ 2641.359210][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2641.359210][ T253] [ 2641.361413][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2641.361413][ T253] netdev_get_by_index+0x5e/0x80 [ 2641.361413][ T253] fib6_nh_init+0x3d8/0x1580 [ 2641.361413][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2641.361413][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2641.361413][ T253] ipv6_add_addr+0x411/0x2000 [ 2641.361413][ T253] inet6_addr_add+0x30e/0xa40 [ 2641.361413][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2641.361413][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2641.361413][ T253] netlink_rcv_skb+0x130/0x360 [ 2641.361413][ T253] netlink_unicast+0x449/0x710 [ 2641.361413][ T253] netlink_sendmsg+0x723/0xbe0 [ 2641.361413][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2641.361413][ T253] ___sys_sendmsg+0xee/0x170 [ 2641.361413][ T253] __sys_sendmsg+0xcd/0x170 [ 2641.361413][ T253] do_syscall_64+0xc6/0x1e0 [ 2641.361413][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2641.361413][ T253] [ 2641.363669][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2641.363669][ T253] netdev_get_by_index+0x5e/0x80 [ 2641.363669][ T253] fib6_nh_init+0x3d8/0x1580 [ 2641.363669][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2641.363669][ T253] ip6_route_add+0x1c/0x140 [ 2641.363669][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2641.363669][ T253] addrconf_add_dev+0xe2/0x170 [ 2641.363669][ T253] inet6_addr_add+0x12f/0xa40 [ 2641.363669][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2641.363669][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2641.363669][ T253] netlink_rcv_skb+0x130/0x360 [ 2641.363669][ T253] netlink_unicast+0x449/0x710 [ 2641.363669][ T253] netlink_sendmsg+0x723/0xbe0 [ 2641.363669][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2641.363669][ T253] ___sys_sendmsg+0xee/0x170 [ 2641.363669][ T253] __sys_sendmsg+0xcd/0x170 [ 2641.363669][ T253] do_syscall_64+0xc6/0x1e0 [ 2641.363669][ T253] [ 2641.365859][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2641.365859][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2641.365859][ T253] ipv6_find_idev+0x102/0x170 [ 2641.365859][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2641.365859][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2641.365859][ T253] netlink_rcv_skb+0x130/0x360 [ 2641.365859][ T253] netlink_unicast+0x449/0x710 [ 2641.365859][ T253] netlink_sendmsg+0x723/0xbe0 [ 2641.365859][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2641.365859][ T253] ___sys_sendmsg+0xee/0x170 [ 2641.365859][ T253] __sys_sendmsg+0xcd/0x170 [ 2641.365859][ T253] do_syscall_64+0xc6/0x1e0 [ 2641.365859][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2641.365859][ T253] [ 2641.367596][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2641.367596][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2641.367596][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2641.367596][ T253] ipv6_find_idev+0x102/0x170 [ 2641.367596][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2641.367596][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2641.367596][ T253] netlink_rcv_skb+0x130/0x360 [ 2641.367596][ T253] netlink_unicast+0x449/0x710 [ 2641.367596][ T253] netlink_sendmsg+0x723/0xbe0 [ 2641.367596][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2641.367596][ T253] ___sys_sendmsg+0xee/0x170 [ 2641.367596][ T253] __sys_sendmsg+0xcd/0x170 [ 2641.367596][ T253] do_syscall_64+0xc6/0x1e0 [ 2641.367596][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2641.367596][ T253] [ 2651.610314][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2651.610824][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2651.610824][ T253] dst_init+0x84/0x4a0 [ 2651.610824][ T253] dst_alloc+0x97/0x150 [ 2651.610824][ T253] ip6_dst_alloc+0x23/0x90 [ 2651.610824][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2651.610824][ T253] ip6_pol_route+0x56f/0x840 [ 2651.610824][ T253] fib6_rule_lookup+0x334/0x630 [ 2651.610824][ T253] ip6_route_output_flags+0x259/0x480 [ 2651.610824][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2651.610824][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2651.610824][ T253] netlink_rcv_skb+0x130/0x360 [ 2651.610824][ T253] netlink_unicast+0x449/0x710 [ 2651.610824][ T253] netlink_sendmsg+0x723/0xbe0 [ 2651.610824][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2651.610824][ T253] ___sys_sendmsg+0xee/0x170 [ 2651.610824][ T253] __sys_sendmsg+0xcd/0x170 [ 2651.610824][ T253] do_syscall_64+0xc6/0x1e0 [ 2651.610824][ T253] [ 2651.613052][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2651.613052][ T253] netdev_get_by_index+0x5e/0x80 [ 2651.613052][ T253] fib6_nh_init+0x3d8/0x1580 [ 2651.613052][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2651.613052][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2651.613052][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2651.613052][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2651.613052][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2651.613052][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2651.613052][ T253] addrconf_dad_begin+0x310/0x670 [ 2651.613052][ T253] addrconf_dad_work+0x10b/0xab0 [ 2651.613052][ T253] process_one_work+0x84d/0x18a0 [ 2651.613052][ T253] worker_thread+0x587/0xd30 [ 2651.613052][ T253] kthread+0x28a/0x350 [ 2651.613052][ T253] ret_from_fork+0x31/0x70 [ 2651.613052][ T253] ret_from_fork_asm+0x1a/0x30 [ 2651.613052][ T253] [ 2651.615262][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2651.615262][ T253] netdev_get_by_index+0x5e/0x80 [ 2651.615262][ T253] fib6_nh_init+0x3d8/0x1580 [ 2651.615262][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2651.615262][ T253] ip6_route_add+0x1c/0x140 [ 2651.615262][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2651.615262][ T253] inet6_addr_add+0x4f8/0xa40 [ 2651.615262][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2651.615262][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2651.615262][ T253] netlink_rcv_skb+0x130/0x360 [ 2651.615262][ T253] netlink_unicast+0x449/0x710 [ 2651.615262][ T253] netlink_sendmsg+0x723/0xbe0 [ 2651.615262][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2651.615262][ T253] ___sys_sendmsg+0xee/0x170 [ 2651.615262][ T253] __sys_sendmsg+0xcd/0x170 [ 2651.615262][ T253] do_syscall_64+0xc6/0x1e0 [ 2651.615262][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2651.615262][ T253] [ 2651.617544][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2651.617544][ T253] netdev_get_by_index+0x5e/0x80 [ 2651.617544][ T253] fib6_nh_init+0x3d8/0x1580 [ 2651.617544][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2651.617544][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2651.617544][ T253] ipv6_add_addr+0x411/0x2000 [ 2651.617544][ T253] inet6_addr_add+0x30e/0xa40 [ 2651.617544][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2651.617544][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2651.617544][ T253] netlink_rcv_skb+0x130/0x360 [ 2651.617544][ T253] netlink_unicast+0x449/0x710 [ 2651.617544][ T253] netlink_sendmsg+0x723/0xbe0 [ 2651.617544][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2651.617544][ T253] ___sys_sendmsg+0xee/0x170 [ 2651.617544][ T253] __sys_sendmsg+0xcd/0x170 [ 2651.617544][ T253] do_syscall_64+0xc6/0x1e0 [ 2651.617544][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2651.617544][ T253] [ 2651.619924][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2651.619924][ T253] netdev_get_by_index+0x5e/0x80 [ 2651.619924][ T253] fib6_nh_init+0x3d8/0x1580 [ 2651.619924][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2651.619924][ T253] ip6_route_add+0x1c/0x140 [ 2651.619924][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2651.619924][ T253] addrconf_add_dev+0xe2/0x170 [ 2651.619924][ T253] inet6_addr_add+0x12f/0xa40 [ 2651.619924][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2651.619924][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2651.619924][ T253] netlink_rcv_skb+0x130/0x360 [ 2651.619924][ T253] netlink_unicast+0x449/0x710 [ 2651.619924][ T253] netlink_sendmsg+0x723/0xbe0 [ 2651.619924][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2651.619924][ T253] ___sys_sendmsg+0xee/0x170 [ 2651.619924][ T253] __sys_sendmsg+0xcd/0x170 [ 2651.619924][ T253] do_syscall_64+0xc6/0x1e0 [ 2651.619924][ T253] [ 2651.622151][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2651.622151][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2651.622151][ T253] ipv6_find_idev+0x102/0x170 [ 2651.622151][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2651.622151][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2651.622151][ T253] netlink_rcv_skb+0x130/0x360 [ 2651.622151][ T253] netlink_unicast+0x449/0x710 [ 2651.622151][ T253] netlink_sendmsg+0x723/0xbe0 [ 2651.622151][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2651.622151][ T253] ___sys_sendmsg+0xee/0x170 [ 2651.622151][ T253] __sys_sendmsg+0xcd/0x170 [ 2651.622151][ T253] do_syscall_64+0xc6/0x1e0 [ 2651.622151][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2651.622151][ T253] [ 2651.623892][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2651.623892][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2651.623892][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2651.623892][ T253] ipv6_find_idev+0x102/0x170 [ 2651.623892][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2651.623892][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2651.623892][ T253] netlink_rcv_skb+0x130/0x360 [ 2651.623892][ T253] netlink_unicast+0x449/0x710 [ 2651.623892][ T253] netlink_sendmsg+0x723/0xbe0 [ 2651.623892][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2651.623892][ T253] ___sys_sendmsg+0xee/0x170 [ 2651.623892][ T253] __sys_sendmsg+0xcd/0x170 [ 2651.623892][ T253] do_syscall_64+0xc6/0x1e0 [ 2651.623892][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2651.623892][ T253] [ 2661.866318][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2661.866838][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2661.866838][ T253] dst_init+0x84/0x4a0 [ 2661.866838][ T253] dst_alloc+0x97/0x150 [ 2661.866838][ T253] ip6_dst_alloc+0x23/0x90 [ 2661.866838][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2661.866838][ T253] ip6_pol_route+0x56f/0x840 [ 2661.866838][ T253] fib6_rule_lookup+0x334/0x630 [ 2661.866838][ T253] ip6_route_output_flags+0x259/0x480 [ 2661.866838][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2661.866838][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2661.866838][ T253] netlink_rcv_skb+0x130/0x360 [ 2661.866838][ T253] netlink_unicast+0x449/0x710 [ 2661.866838][ T253] netlink_sendmsg+0x723/0xbe0 [ 2661.866838][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2661.866838][ T253] ___sys_sendmsg+0xee/0x170 [ 2661.866838][ T253] __sys_sendmsg+0xcd/0x170 [ 2661.866838][ T253] do_syscall_64+0xc6/0x1e0 [ 2661.866838][ T253] [ 2661.869042][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2661.869042][ T253] netdev_get_by_index+0x5e/0x80 [ 2661.869042][ T253] fib6_nh_init+0x3d8/0x1580 [ 2661.869042][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2661.869042][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2661.869042][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2661.869042][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2661.869042][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2661.869042][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2661.869042][ T253] addrconf_dad_begin+0x310/0x670 [ 2661.869042][ T253] addrconf_dad_work+0x10b/0xab0 [ 2661.869042][ T253] process_one_work+0x84d/0x18a0 [ 2661.869042][ T253] worker_thread+0x587/0xd30 [ 2661.869042][ T253] kthread+0x28a/0x350 [ 2661.869042][ T253] ret_from_fork+0x31/0x70 [ 2661.869042][ T253] ret_from_fork_asm+0x1a/0x30 [ 2661.869042][ T253] [ 2661.871153][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2661.871153][ T253] netdev_get_by_index+0x5e/0x80 [ 2661.871153][ T253] fib6_nh_init+0x3d8/0x1580 [ 2661.871153][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2661.871153][ T253] ip6_route_add+0x1c/0x140 [ 2661.871153][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2661.871153][ T253] inet6_addr_add+0x4f8/0xa40 [ 2661.871153][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2661.871153][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2661.871153][ T253] netlink_rcv_skb+0x130/0x360 [ 2661.871153][ T253] netlink_unicast+0x449/0x710 [ 2661.871153][ T253] netlink_sendmsg+0x723/0xbe0 [ 2661.871153][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2661.871153][ T253] ___sys_sendmsg+0xee/0x170 [ 2661.871153][ T253] __sys_sendmsg+0xcd/0x170 [ 2661.871153][ T253] do_syscall_64+0xc6/0x1e0 [ 2661.871153][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2661.871153][ T253] [ 2661.873373][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2661.873373][ T253] netdev_get_by_index+0x5e/0x80 [ 2661.873373][ T253] fib6_nh_init+0x3d8/0x1580 [ 2661.873373][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2661.873373][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2661.873373][ T253] ipv6_add_addr+0x411/0x2000 [ 2661.873373][ T253] inet6_addr_add+0x30e/0xa40 [ 2661.873373][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2661.873373][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2661.873373][ T253] netlink_rcv_skb+0x130/0x360 [ 2661.873373][ T253] netlink_unicast+0x449/0x710 [ 2661.873373][ T253] netlink_sendmsg+0x723/0xbe0 [ 2661.873373][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2661.873373][ T253] ___sys_sendmsg+0xee/0x170 [ 2661.873373][ T253] __sys_sendmsg+0xcd/0x170 [ 2661.873373][ T253] do_syscall_64+0xc6/0x1e0 [ 2661.873373][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2661.873373][ T253] [ 2661.875650][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2661.875650][ T253] netdev_get_by_index+0x5e/0x80 [ 2661.875650][ T253] fib6_nh_init+0x3d8/0x1580 [ 2661.875650][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2661.875650][ T253] ip6_route_add+0x1c/0x140 [ 2661.875650][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2661.875650][ T253] addrconf_add_dev+0xe2/0x170 [ 2661.875650][ T253] inet6_addr_add+0x12f/0xa40 [ 2661.875650][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2661.875650][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2661.875650][ T253] netlink_rcv_skb+0x130/0x360 [ 2661.875650][ T253] netlink_unicast+0x449/0x710 [ 2661.875650][ T253] netlink_sendmsg+0x723/0xbe0 [ 2661.875650][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2661.875650][ T253] ___sys_sendmsg+0xee/0x170 [ 2661.875650][ T253] __sys_sendmsg+0xcd/0x170 [ 2661.875650][ T253] do_syscall_64+0xc6/0x1e0 [ 2661.875650][ T253] [ 2661.877903][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2661.877903][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2661.877903][ T253] ipv6_find_idev+0x102/0x170 [ 2661.877903][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2661.877903][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2661.877903][ T253] netlink_rcv_skb+0x130/0x360 [ 2661.877903][ T253] netlink_unicast+0x449/0x710 [ 2661.877903][ T253] netlink_sendmsg+0x723/0xbe0 [ 2661.877903][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2661.877903][ T253] ___sys_sendmsg+0xee/0x170 [ 2661.877903][ T253] __sys_sendmsg+0xcd/0x170 [ 2661.877903][ T253] do_syscall_64+0xc6/0x1e0 [ 2661.877903][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2661.877903][ T253] [ 2661.879613][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2661.879613][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2661.879613][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2661.879613][ T253] ipv6_find_idev+0x102/0x170 [ 2661.879613][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2661.879613][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2661.879613][ T253] netlink_rcv_skb+0x130/0x360 [ 2661.879613][ T253] netlink_unicast+0x449/0x710 [ 2661.879613][ T253] netlink_sendmsg+0x723/0xbe0 [ 2661.879613][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2661.879613][ T253] ___sys_sendmsg+0xee/0x170 [ 2661.879613][ T253] __sys_sendmsg+0xcd/0x170 [ 2661.879613][ T253] do_syscall_64+0xc6/0x1e0 [ 2661.879613][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2661.879613][ T253] [ 2671.962366][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2671.962843][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2671.962843][ T253] dst_init+0x84/0x4a0 [ 2671.962843][ T253] dst_alloc+0x97/0x150 [ 2671.962843][ T253] ip6_dst_alloc+0x23/0x90 [ 2671.962843][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2671.962843][ T253] ip6_pol_route+0x56f/0x840 [ 2671.962843][ T253] fib6_rule_lookup+0x334/0x630 [ 2671.962843][ T253] ip6_route_output_flags+0x259/0x480 [ 2671.962843][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2671.962843][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2671.962843][ T253] netlink_rcv_skb+0x130/0x360 [ 2671.962843][ T253] netlink_unicast+0x449/0x710 [ 2671.962843][ T253] netlink_sendmsg+0x723/0xbe0 [ 2671.962843][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2671.962843][ T253] ___sys_sendmsg+0xee/0x170 [ 2671.962843][ T253] __sys_sendmsg+0xcd/0x170 [ 2671.962843][ T253] do_syscall_64+0xc6/0x1e0 [ 2671.962843][ T253] [ 2671.965043][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2671.965043][ T253] netdev_get_by_index+0x5e/0x80 [ 2671.965043][ T253] fib6_nh_init+0x3d8/0x1580 [ 2671.965043][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2671.965043][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2671.965043][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2671.965043][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2671.965043][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2671.965043][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2671.965043][ T253] addrconf_dad_begin+0x310/0x670 [ 2671.965043][ T253] addrconf_dad_work+0x10b/0xab0 [ 2671.965043][ T253] process_one_work+0x84d/0x18a0 [ 2671.965043][ T253] worker_thread+0x587/0xd30 [ 2671.965043][ T253] kthread+0x28a/0x350 [ 2671.965043][ T253] ret_from_fork+0x31/0x70 [ 2671.965043][ T253] ret_from_fork_asm+0x1a/0x30 [ 2671.965043][ T253] [ 2671.967225][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2671.967225][ T253] netdev_get_by_index+0x5e/0x80 [ 2671.967225][ T253] fib6_nh_init+0x3d8/0x1580 [ 2671.967225][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2671.967225][ T253] ip6_route_add+0x1c/0x140 [ 2671.967225][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2671.967225][ T253] inet6_addr_add+0x4f8/0xa40 [ 2671.967225][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2671.967225][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2671.967225][ T253] netlink_rcv_skb+0x130/0x360 [ 2671.967225][ T253] netlink_unicast+0x449/0x710 [ 2671.967225][ T253] netlink_sendmsg+0x723/0xbe0 [ 2671.967225][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2671.967225][ T253] ___sys_sendmsg+0xee/0x170 [ 2671.967225][ T253] __sys_sendmsg+0xcd/0x170 [ 2671.967225][ T253] do_syscall_64+0xc6/0x1e0 [ 2671.967225][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2671.967225][ T253] [ 2671.969471][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2671.969471][ T253] netdev_get_by_index+0x5e/0x80 [ 2671.969471][ T253] fib6_nh_init+0x3d8/0x1580 [ 2671.969471][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2671.969471][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2671.969471][ T253] ipv6_add_addr+0x411/0x2000 [ 2671.969471][ T253] inet6_addr_add+0x30e/0xa40 [ 2671.969471][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2671.969471][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2671.969471][ T253] netlink_rcv_skb+0x130/0x360 [ 2671.969471][ T253] netlink_unicast+0x449/0x710 [ 2671.969471][ T253] netlink_sendmsg+0x723/0xbe0 [ 2671.969471][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2671.969471][ T253] ___sys_sendmsg+0xee/0x170 [ 2671.969471][ T253] __sys_sendmsg+0xcd/0x170 [ 2671.969471][ T253] do_syscall_64+0xc6/0x1e0 [ 2671.969471][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2671.969471][ T253] [ 2671.971677][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2671.971677][ T253] netdev_get_by_index+0x5e/0x80 [ 2671.971677][ T253] fib6_nh_init+0x3d8/0x1580 [ 2671.971677][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2671.971677][ T253] ip6_route_add+0x1c/0x140 [ 2671.971677][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2671.971677][ T253] addrconf_add_dev+0xe2/0x170 [ 2671.971677][ T253] inet6_addr_add+0x12f/0xa40 [ 2671.971677][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2671.971677][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2671.971677][ T253] netlink_rcv_skb+0x130/0x360 [ 2671.971677][ T253] netlink_unicast+0x449/0x710 [ 2671.971677][ T253] netlink_sendmsg+0x723/0xbe0 [ 2671.971677][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2671.971677][ T253] ___sys_sendmsg+0xee/0x170 [ 2671.971677][ T253] __sys_sendmsg+0xcd/0x170 [ 2671.971677][ T253] do_syscall_64+0xc6/0x1e0 [ 2671.971677][ T253] [ 2671.973840][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2671.973840][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2671.973840][ T253] ipv6_find_idev+0x102/0x170 [ 2671.973840][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2671.973840][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2671.973840][ T253] netlink_rcv_skb+0x130/0x360 [ 2671.973840][ T253] netlink_unicast+0x449/0x710 [ 2671.973840][ T253] netlink_sendmsg+0x723/0xbe0 [ 2671.973840][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2671.973840][ T253] ___sys_sendmsg+0xee/0x170 [ 2671.973840][ T253] __sys_sendmsg+0xcd/0x170 [ 2671.973840][ T253] do_syscall_64+0xc6/0x1e0 [ 2671.973840][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2671.973840][ T253] [ 2671.975539][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2671.975539][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2671.975539][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2671.975539][ T253] ipv6_find_idev+0x102/0x170 [ 2671.975539][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2671.975539][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2671.975539][ T253] netlink_rcv_skb+0x130/0x360 [ 2671.975539][ T253] netlink_unicast+0x449/0x710 [ 2671.975539][ T253] netlink_sendmsg+0x723/0xbe0 [ 2671.975539][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2671.975539][ T253] ___sys_sendmsg+0xee/0x170 [ 2671.975539][ T253] __sys_sendmsg+0xcd/0x170 [ 2671.975539][ T253] do_syscall_64+0xc6/0x1e0 [ 2671.975539][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2671.975539][ T253] [ 2682.218366][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2682.218851][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2682.218851][ T253] dst_init+0x84/0x4a0 [ 2682.218851][ T253] dst_alloc+0x97/0x150 [ 2682.218851][ T253] ip6_dst_alloc+0x23/0x90 [ 2682.218851][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2682.218851][ T253] ip6_pol_route+0x56f/0x840 [ 2682.218851][ T253] fib6_rule_lookup+0x334/0x630 [ 2682.218851][ T253] ip6_route_output_flags+0x259/0x480 [ 2682.218851][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2682.218851][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2682.218851][ T253] netlink_rcv_skb+0x130/0x360 [ 2682.218851][ T253] netlink_unicast+0x449/0x710 [ 2682.218851][ T253] netlink_sendmsg+0x723/0xbe0 [ 2682.218851][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2682.218851][ T253] ___sys_sendmsg+0xee/0x170 [ 2682.218851][ T253] __sys_sendmsg+0xcd/0x170 [ 2682.218851][ T253] do_syscall_64+0xc6/0x1e0 [ 2682.218851][ T253] [ 2682.221047][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2682.221047][ T253] netdev_get_by_index+0x5e/0x80 [ 2682.221047][ T253] fib6_nh_init+0x3d8/0x1580 [ 2682.221047][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2682.221047][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2682.221047][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2682.221047][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2682.221047][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2682.221047][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2682.221047][ T253] addrconf_dad_begin+0x310/0x670 [ 2682.221047][ T253] addrconf_dad_work+0x10b/0xab0 [ 2682.221047][ T253] process_one_work+0x84d/0x18a0 [ 2682.221047][ T253] worker_thread+0x587/0xd30 [ 2682.221047][ T253] kthread+0x28a/0x350 [ 2682.221047][ T253] ret_from_fork+0x31/0x70 [ 2682.221047][ T253] ret_from_fork_asm+0x1a/0x30 [ 2682.221047][ T253] [ 2682.223208][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2682.223208][ T253] netdev_get_by_index+0x5e/0x80 [ 2682.223208][ T253] fib6_nh_init+0x3d8/0x1580 [ 2682.223208][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2682.223208][ T253] ip6_route_add+0x1c/0x140 [ 2682.223208][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2682.223208][ T253] inet6_addr_add+0x4f8/0xa40 [ 2682.223208][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2682.223208][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2682.223208][ T253] netlink_rcv_skb+0x130/0x360 [ 2682.223208][ T253] netlink_unicast+0x449/0x710 [ 2682.223208][ T253] netlink_sendmsg+0x723/0xbe0 [ 2682.223208][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2682.223208][ T253] ___sys_sendmsg+0xee/0x170 [ 2682.223208][ T253] __sys_sendmsg+0xcd/0x170 [ 2682.223208][ T253] do_syscall_64+0xc6/0x1e0 [ 2682.223208][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2682.223208][ T253] [ 2682.225450][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2682.225450][ T253] netdev_get_by_index+0x5e/0x80 [ 2682.225450][ T253] fib6_nh_init+0x3d8/0x1580 [ 2682.225450][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2682.225450][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2682.225450][ T253] ipv6_add_addr+0x411/0x2000 [ 2682.225450][ T253] inet6_addr_add+0x30e/0xa40 [ 2682.225450][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2682.225450][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2682.225450][ T253] netlink_rcv_skb+0x130/0x360 [ 2682.225450][ T253] netlink_unicast+0x449/0x710 [ 2682.225450][ T253] netlink_sendmsg+0x723/0xbe0 [ 2682.225450][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2682.225450][ T253] ___sys_sendmsg+0xee/0x170 [ 2682.225450][ T253] __sys_sendmsg+0xcd/0x170 [ 2682.225450][ T253] do_syscall_64+0xc6/0x1e0 [ 2682.225450][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2682.225450][ T253] [ 2682.227692][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2682.227692][ T253] netdev_get_by_index+0x5e/0x80 [ 2682.227692][ T253] fib6_nh_init+0x3d8/0x1580 [ 2682.227692][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2682.227692][ T253] ip6_route_add+0x1c/0x140 [ 2682.227692][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2682.227692][ T253] addrconf_add_dev+0xe2/0x170 [ 2682.227692][ T253] inet6_addr_add+0x12f/0xa40 [ 2682.227692][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2682.227692][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2682.227692][ T253] netlink_rcv_skb+0x130/0x360 [ 2682.227692][ T253] netlink_unicast+0x449/0x710 [ 2682.227692][ T253] netlink_sendmsg+0x723/0xbe0 [ 2682.227692][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2682.227692][ T253] ___sys_sendmsg+0xee/0x170 [ 2682.227692][ T253] __sys_sendmsg+0xcd/0x170 [ 2682.227692][ T253] do_syscall_64+0xc6/0x1e0 [ 2682.227692][ T253] [ 2682.229863][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2682.229863][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2682.229863][ T253] ipv6_find_idev+0x102/0x170 [ 2682.229863][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2682.229863][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2682.229863][ T253] netlink_rcv_skb+0x130/0x360 [ 2682.229863][ T253] netlink_unicast+0x449/0x710 [ 2682.229863][ T253] netlink_sendmsg+0x723/0xbe0 [ 2682.229863][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2682.229863][ T253] ___sys_sendmsg+0xee/0x170 [ 2682.229863][ T253] __sys_sendmsg+0xcd/0x170 [ 2682.229863][ T253] do_syscall_64+0xc6/0x1e0 [ 2682.229863][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2682.229863][ T253] [ 2682.231569][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2682.231569][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2682.231569][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2682.231569][ T253] ipv6_find_idev+0x102/0x170 [ 2682.231569][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2682.231569][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2682.231569][ T253] netlink_rcv_skb+0x130/0x360 [ 2682.231569][ T253] netlink_unicast+0x449/0x710 [ 2682.231569][ T253] netlink_sendmsg+0x723/0xbe0 [ 2682.231569][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2682.231569][ T253] ___sys_sendmsg+0xee/0x170 [ 2682.231569][ T253] __sys_sendmsg+0xcd/0x170 [ 2682.231569][ T253] do_syscall_64+0xc6/0x1e0 [ 2682.231569][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2682.231569][ T253] [ 2692.474258][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2692.474727][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2692.474727][ T253] dst_init+0x84/0x4a0 [ 2692.474727][ T253] dst_alloc+0x97/0x150 [ 2692.474727][ T253] ip6_dst_alloc+0x23/0x90 [ 2692.474727][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2692.474727][ T253] ip6_pol_route+0x56f/0x840 [ 2692.474727][ T253] fib6_rule_lookup+0x334/0x630 [ 2692.474727][ T253] ip6_route_output_flags+0x259/0x480 [ 2692.474727][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2692.474727][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2692.474727][ T253] netlink_rcv_skb+0x130/0x360 [ 2692.474727][ T253] netlink_unicast+0x449/0x710 [ 2692.474727][ T253] netlink_sendmsg+0x723/0xbe0 [ 2692.474727][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2692.474727][ T253] ___sys_sendmsg+0xee/0x170 [ 2692.474727][ T253] __sys_sendmsg+0xcd/0x170 [ 2692.474727][ T253] do_syscall_64+0xc6/0x1e0 [ 2692.474727][ T253] [ 2692.476934][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2692.476934][ T253] netdev_get_by_index+0x5e/0x80 [ 2692.476934][ T253] fib6_nh_init+0x3d8/0x1580 [ 2692.476934][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2692.476934][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2692.476934][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2692.476934][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2692.476934][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2692.476934][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2692.476934][ T253] addrconf_dad_begin+0x310/0x670 [ 2692.476934][ T253] addrconf_dad_work+0x10b/0xab0 [ 2692.476934][ T253] process_one_work+0x84d/0x18a0 [ 2692.476934][ T253] worker_thread+0x587/0xd30 [ 2692.476934][ T253] kthread+0x28a/0x350 [ 2692.476934][ T253] ret_from_fork+0x31/0x70 [ 2692.476934][ T253] ret_from_fork_asm+0x1a/0x30 [ 2692.476934][ T253] [ 2692.479078][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2692.479078][ T253] netdev_get_by_index+0x5e/0x80 [ 2692.479078][ T253] fib6_nh_init+0x3d8/0x1580 [ 2692.479078][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2692.479078][ T253] ip6_route_add+0x1c/0x140 [ 2692.479078][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2692.479078][ T253] inet6_addr_add+0x4f8/0xa40 [ 2692.479078][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2692.479078][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2692.479078][ T253] netlink_rcv_skb+0x130/0x360 [ 2692.479078][ T253] netlink_unicast+0x449/0x710 [ 2692.479078][ T253] netlink_sendmsg+0x723/0xbe0 [ 2692.479078][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2692.479078][ T253] ___sys_sendmsg+0xee/0x170 [ 2692.479078][ T253] __sys_sendmsg+0xcd/0x170 [ 2692.479078][ T253] do_syscall_64+0xc6/0x1e0 [ 2692.479078][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2692.479078][ T253] [ 2692.481329][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2692.481329][ T253] netdev_get_by_index+0x5e/0x80 [ 2692.481329][ T253] fib6_nh_init+0x3d8/0x1580 [ 2692.481329][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2692.481329][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2692.481329][ T253] ipv6_add_addr+0x411/0x2000 [ 2692.481329][ T253] inet6_addr_add+0x30e/0xa40 [ 2692.481329][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2692.481329][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2692.481329][ T253] netlink_rcv_skb+0x130/0x360 [ 2692.481329][ T253] netlink_unicast+0x449/0x710 [ 2692.481329][ T253] netlink_sendmsg+0x723/0xbe0 [ 2692.481329][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2692.481329][ T253] ___sys_sendmsg+0xee/0x170 [ 2692.481329][ T253] __sys_sendmsg+0xcd/0x170 [ 2692.481329][ T253] do_syscall_64+0xc6/0x1e0 [ 2692.481329][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2692.481329][ T253] [ 2692.483570][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2692.483570][ T253] netdev_get_by_index+0x5e/0x80 [ 2692.483570][ T253] fib6_nh_init+0x3d8/0x1580 [ 2692.483570][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2692.483570][ T253] ip6_route_add+0x1c/0x140 [ 2692.483570][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2692.483570][ T253] addrconf_add_dev+0xe2/0x170 [ 2692.483570][ T253] inet6_addr_add+0x12f/0xa40 [ 2692.483570][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2692.483570][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2692.483570][ T253] netlink_rcv_skb+0x130/0x360 [ 2692.483570][ T253] netlink_unicast+0x449/0x710 [ 2692.483570][ T253] netlink_sendmsg+0x723/0xbe0 [ 2692.483570][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2692.483570][ T253] ___sys_sendmsg+0xee/0x170 [ 2692.483570][ T253] __sys_sendmsg+0xcd/0x170 [ 2692.483570][ T253] do_syscall_64+0xc6/0x1e0 [ 2692.483570][ T253] [ 2692.485771][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2692.485771][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2692.485771][ T253] ipv6_find_idev+0x102/0x170 [ 2692.485771][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2692.485771][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2692.485771][ T253] netlink_rcv_skb+0x130/0x360 [ 2692.485771][ T253] netlink_unicast+0x449/0x710 [ 2692.485771][ T253] netlink_sendmsg+0x723/0xbe0 [ 2692.485771][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2692.485771][ T253] ___sys_sendmsg+0xee/0x170 [ 2692.485771][ T253] __sys_sendmsg+0xcd/0x170 [ 2692.485771][ T253] do_syscall_64+0xc6/0x1e0 [ 2692.485771][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2692.485771][ T253] [ 2692.487539][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2692.487539][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2692.487539][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2692.487539][ T253] ipv6_find_idev+0x102/0x170 [ 2692.487539][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2692.487539][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2692.487539][ T253] netlink_rcv_skb+0x130/0x360 [ 2692.487539][ T253] netlink_unicast+0x449/0x710 [ 2692.487539][ T253] netlink_sendmsg+0x723/0xbe0 [ 2692.487539][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2692.487539][ T253] ___sys_sendmsg+0xee/0x170 [ 2692.487539][ T253] __sys_sendmsg+0xcd/0x170 [ 2692.487539][ T253] do_syscall_64+0xc6/0x1e0 [ 2692.487539][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2692.487539][ T253] [ 2702.730320][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2702.730796][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2702.730796][ T253] dst_init+0x84/0x4a0 [ 2702.730796][ T253] dst_alloc+0x97/0x150 [ 2702.730796][ T253] ip6_dst_alloc+0x23/0x90 [ 2702.730796][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2702.730796][ T253] ip6_pol_route+0x56f/0x840 [ 2702.730796][ T253] fib6_rule_lookup+0x334/0x630 [ 2702.730796][ T253] ip6_route_output_flags+0x259/0x480 [ 2702.730796][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2702.730796][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2702.730796][ T253] netlink_rcv_skb+0x130/0x360 [ 2702.730796][ T253] netlink_unicast+0x449/0x710 [ 2702.730796][ T253] netlink_sendmsg+0x723/0xbe0 [ 2702.730796][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2702.730796][ T253] ___sys_sendmsg+0xee/0x170 [ 2702.730796][ T253] __sys_sendmsg+0xcd/0x170 [ 2702.730796][ T253] do_syscall_64+0xc6/0x1e0 [ 2702.730796][ T253] [ 2702.733009][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2702.733009][ T253] netdev_get_by_index+0x5e/0x80 [ 2702.733009][ T253] fib6_nh_init+0x3d8/0x1580 [ 2702.733009][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2702.733009][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2702.733009][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2702.733009][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2702.733009][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2702.733009][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2702.733009][ T253] addrconf_dad_begin+0x310/0x670 [ 2702.733009][ T253] addrconf_dad_work+0x10b/0xab0 [ 2702.733009][ T253] process_one_work+0x84d/0x18a0 [ 2702.733009][ T253] worker_thread+0x587/0xd30 [ 2702.733009][ T253] kthread+0x28a/0x350 [ 2702.733009][ T253] ret_from_fork+0x31/0x70 [ 2702.733009][ T253] ret_from_fork_asm+0x1a/0x30 [ 2702.733009][ T253] [ 2702.735160][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2702.735160][ T253] netdev_get_by_index+0x5e/0x80 [ 2702.735160][ T253] fib6_nh_init+0x3d8/0x1580 [ 2702.735160][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2702.735160][ T253] ip6_route_add+0x1c/0x140 [ 2702.735160][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2702.735160][ T253] inet6_addr_add+0x4f8/0xa40 [ 2702.735160][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2702.735160][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2702.735160][ T253] netlink_rcv_skb+0x130/0x360 [ 2702.735160][ T253] netlink_unicast+0x449/0x710 [ 2702.735160][ T253] netlink_sendmsg+0x723/0xbe0 [ 2702.735160][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2702.735160][ T253] ___sys_sendmsg+0xee/0x170 [ 2702.735160][ T253] __sys_sendmsg+0xcd/0x170 [ 2702.735160][ T253] do_syscall_64+0xc6/0x1e0 [ 2702.735160][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2702.735160][ T253] [ 2702.737405][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2702.737405][ T253] netdev_get_by_index+0x5e/0x80 [ 2702.737405][ T253] fib6_nh_init+0x3d8/0x1580 [ 2702.737405][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2702.737405][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2702.737405][ T253] ipv6_add_addr+0x411/0x2000 [ 2702.737405][ T253] inet6_addr_add+0x30e/0xa40 [ 2702.737405][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2702.737405][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2702.737405][ T253] netlink_rcv_skb+0x130/0x360 [ 2702.737405][ T253] netlink_unicast+0x449/0x710 [ 2702.737405][ T253] netlink_sendmsg+0x723/0xbe0 [ 2702.737405][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2702.737405][ T253] ___sys_sendmsg+0xee/0x170 [ 2702.737405][ T253] __sys_sendmsg+0xcd/0x170 [ 2702.737405][ T253] do_syscall_64+0xc6/0x1e0 [ 2702.737405][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2702.737405][ T253] [ 2702.739639][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2702.739639][ T253] netdev_get_by_index+0x5e/0x80 [ 2702.739639][ T253] fib6_nh_init+0x3d8/0x1580 [ 2702.739639][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2702.739639][ T253] ip6_route_add+0x1c/0x140 [ 2702.739639][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2702.739639][ T253] addrconf_add_dev+0xe2/0x170 [ 2702.739639][ T253] inet6_addr_add+0x12f/0xa40 [ 2702.739639][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2702.739639][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2702.739639][ T253] netlink_rcv_skb+0x130/0x360 [ 2702.739639][ T253] netlink_unicast+0x449/0x710 [ 2702.739639][ T253] netlink_sendmsg+0x723/0xbe0 [ 2702.739639][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2702.739639][ T253] ___sys_sendmsg+0xee/0x170 [ 2702.739639][ T253] __sys_sendmsg+0xcd/0x170 [ 2702.739639][ T253] do_syscall_64+0xc6/0x1e0 [ 2702.739639][ T253] [ 2702.741839][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2702.741839][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2702.741839][ T253] ipv6_find_idev+0x102/0x170 [ 2702.741839][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2702.741839][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2702.741839][ T253] netlink_rcv_skb+0x130/0x360 [ 2702.741839][ T253] netlink_unicast+0x449/0x710 [ 2702.741839][ T253] netlink_sendmsg+0x723/0xbe0 [ 2702.741839][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2702.741839][ T253] ___sys_sendmsg+0xee/0x170 [ 2702.741839][ T253] __sys_sendmsg+0xcd/0x170 [ 2702.741839][ T253] do_syscall_64+0xc6/0x1e0 [ 2702.741839][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2702.741839][ T253] [ 2702.743558][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2702.743558][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2702.743558][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2702.743558][ T253] ipv6_find_idev+0x102/0x170 [ 2702.743558][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2702.743558][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2702.743558][ T253] netlink_rcv_skb+0x130/0x360 [ 2702.743558][ T253] netlink_unicast+0x449/0x710 [ 2702.743558][ T253] netlink_sendmsg+0x723/0xbe0 [ 2702.743558][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2702.743558][ T253] ___sys_sendmsg+0xee/0x170 [ 2702.743558][ T253] __sys_sendmsg+0xcd/0x170 [ 2702.743558][ T253] do_syscall_64+0xc6/0x1e0 [ 2702.743558][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2702.743558][ T253] [ 2712.986236][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2712.986829][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2712.986829][ T253] dst_init+0x84/0x4a0 [ 2712.986829][ T253] dst_alloc+0x97/0x150 [ 2712.986829][ T253] ip6_dst_alloc+0x23/0x90 [ 2712.986829][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2712.986829][ T253] ip6_pol_route+0x56f/0x840 [ 2712.986829][ T253] fib6_rule_lookup+0x334/0x630 [ 2712.986829][ T253] ip6_route_output_flags+0x259/0x480 [ 2712.986829][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2712.986829][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2712.986829][ T253] netlink_rcv_skb+0x130/0x360 [ 2712.986829][ T253] netlink_unicast+0x449/0x710 [ 2712.986829][ T253] netlink_sendmsg+0x723/0xbe0 [ 2712.986829][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2712.986829][ T253] ___sys_sendmsg+0xee/0x170 [ 2712.986829][ T253] __sys_sendmsg+0xcd/0x170 [ 2712.986829][ T253] do_syscall_64+0xc6/0x1e0 [ 2712.986829][ T253] [ 2712.989031][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2712.989031][ T253] netdev_get_by_index+0x5e/0x80 [ 2712.989031][ T253] fib6_nh_init+0x3d8/0x1580 [ 2712.989031][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2712.989031][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2712.989031][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2712.989031][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2712.989031][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2712.989031][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2712.989031][ T253] addrconf_dad_begin+0x310/0x670 [ 2712.989031][ T253] addrconf_dad_work+0x10b/0xab0 [ 2712.989031][ T253] process_one_work+0x84d/0x18a0 [ 2712.989031][ T253] worker_thread+0x587/0xd30 [ 2712.989031][ T253] kthread+0x28a/0x350 [ 2712.989031][ T253] ret_from_fork+0x31/0x70 [ 2712.989031][ T253] ret_from_fork_asm+0x1a/0x30 [ 2712.989031][ T253] [ 2712.991177][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2712.991177][ T253] netdev_get_by_index+0x5e/0x80 [ 2712.991177][ T253] fib6_nh_init+0x3d8/0x1580 [ 2712.991177][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2712.991177][ T253] ip6_route_add+0x1c/0x140 [ 2712.991177][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2712.991177][ T253] inet6_addr_add+0x4f8/0xa40 [ 2712.991177][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2712.991177][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2712.991177][ T253] netlink_rcv_skb+0x130/0x360 [ 2712.991177][ T253] netlink_unicast+0x449/0x710 [ 2712.991177][ T253] netlink_sendmsg+0x723/0xbe0 [ 2712.991177][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2712.991177][ T253] ___sys_sendmsg+0xee/0x170 [ 2712.991177][ T253] __sys_sendmsg+0xcd/0x170 [ 2712.991177][ T253] do_syscall_64+0xc6/0x1e0 [ 2712.991177][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2712.991177][ T253] [ 2712.993413][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2712.993413][ T253] netdev_get_by_index+0x5e/0x80 [ 2712.993413][ T253] fib6_nh_init+0x3d8/0x1580 [ 2712.993413][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2712.993413][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2712.993413][ T253] ipv6_add_addr+0x411/0x2000 [ 2712.993413][ T253] inet6_addr_add+0x30e/0xa40 [ 2712.993413][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2712.993413][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2712.993413][ T253] netlink_rcv_skb+0x130/0x360 [ 2712.993413][ T253] netlink_unicast+0x449/0x710 [ 2712.993413][ T253] netlink_sendmsg+0x723/0xbe0 [ 2712.993413][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2712.993413][ T253] ___sys_sendmsg+0xee/0x170 [ 2712.993413][ T253] __sys_sendmsg+0xcd/0x170 [ 2712.993413][ T253] do_syscall_64+0xc6/0x1e0 [ 2712.993413][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2712.993413][ T253] [ 2712.995659][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2712.995659][ T253] netdev_get_by_index+0x5e/0x80 [ 2712.995659][ T253] fib6_nh_init+0x3d8/0x1580 [ 2712.995659][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2712.995659][ T253] ip6_route_add+0x1c/0x140 [ 2712.995659][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2712.995659][ T253] addrconf_add_dev+0xe2/0x170 [ 2712.995659][ T253] inet6_addr_add+0x12f/0xa40 [ 2712.995659][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2712.995659][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2712.995659][ T253] netlink_rcv_skb+0x130/0x360 [ 2712.995659][ T253] netlink_unicast+0x449/0x710 [ 2712.995659][ T253] netlink_sendmsg+0x723/0xbe0 [ 2712.995659][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2712.995659][ T253] ___sys_sendmsg+0xee/0x170 [ 2712.995659][ T253] __sys_sendmsg+0xcd/0x170 [ 2712.995659][ T253] do_syscall_64+0xc6/0x1e0 [ 2712.995659][ T253] [ 2712.997870][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2712.997870][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2712.997870][ T253] ipv6_find_idev+0x102/0x170 [ 2712.997870][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2712.997870][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2712.997870][ T253] netlink_rcv_skb+0x130/0x360 [ 2712.997870][ T253] netlink_unicast+0x449/0x710 [ 2712.997870][ T253] netlink_sendmsg+0x723/0xbe0 [ 2712.997870][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2712.997870][ T253] ___sys_sendmsg+0xee/0x170 [ 2712.997870][ T253] __sys_sendmsg+0xcd/0x170 [ 2712.997870][ T253] do_syscall_64+0xc6/0x1e0 [ 2712.997870][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2712.997870][ T253] [ 2712.999596][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2712.999596][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2712.999596][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2712.999596][ T253] ipv6_find_idev+0x102/0x170 [ 2712.999596][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2712.999596][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2712.999596][ T253] netlink_rcv_skb+0x130/0x360 [ 2712.999596][ T253] netlink_unicast+0x449/0x710 [ 2712.999596][ T253] netlink_sendmsg+0x723/0xbe0 [ 2712.999596][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2712.999596][ T253] ___sys_sendmsg+0xee/0x170 [ 2712.999596][ T253] __sys_sendmsg+0xcd/0x170 [ 2712.999596][ T253] do_syscall_64+0xc6/0x1e0 [ 2712.999596][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2712.999596][ T253] [ 2723.242238][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2723.242717][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2723.242717][ T253] dst_init+0x84/0x4a0 [ 2723.242717][ T253] dst_alloc+0x97/0x150 [ 2723.242717][ T253] ip6_dst_alloc+0x23/0x90 [ 2723.242717][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2723.242717][ T253] ip6_pol_route+0x56f/0x840 [ 2723.242717][ T253] fib6_rule_lookup+0x334/0x630 [ 2723.242717][ T253] ip6_route_output_flags+0x259/0x480 [ 2723.242717][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2723.242717][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2723.242717][ T253] netlink_rcv_skb+0x130/0x360 [ 2723.242717][ T253] netlink_unicast+0x449/0x710 [ 2723.242717][ T253] netlink_sendmsg+0x723/0xbe0 [ 2723.242717][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2723.242717][ T253] ___sys_sendmsg+0xee/0x170 [ 2723.242717][ T253] __sys_sendmsg+0xcd/0x170 [ 2723.242717][ T253] do_syscall_64+0xc6/0x1e0 [ 2723.242717][ T253] [ 2723.245009][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2723.245009][ T253] netdev_get_by_index+0x5e/0x80 [ 2723.245009][ T253] fib6_nh_init+0x3d8/0x1580 [ 2723.245009][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2723.245009][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2723.245009][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2723.245009][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2723.245009][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2723.245009][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2723.245009][ T253] addrconf_dad_begin+0x310/0x670 [ 2723.245009][ T253] addrconf_dad_work+0x10b/0xab0 [ 2723.245009][ T253] process_one_work+0x84d/0x18a0 [ 2723.245009][ T253] worker_thread+0x587/0xd30 [ 2723.245009][ T253] kthread+0x28a/0x350 [ 2723.245009][ T253] ret_from_fork+0x31/0x70 [ 2723.245009][ T253] ret_from_fork_asm+0x1a/0x30 [ 2723.245009][ T253] [ 2723.247156][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2723.247156][ T253] netdev_get_by_index+0x5e/0x80 [ 2723.247156][ T253] fib6_nh_init+0x3d8/0x1580 [ 2723.247156][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2723.247156][ T253] ip6_route_add+0x1c/0x140 [ 2723.247156][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2723.247156][ T253] inet6_addr_add+0x4f8/0xa40 [ 2723.247156][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2723.247156][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2723.247156][ T253] netlink_rcv_skb+0x130/0x360 [ 2723.247156][ T253] netlink_unicast+0x449/0x710 [ 2723.247156][ T253] netlink_sendmsg+0x723/0xbe0 [ 2723.247156][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2723.247156][ T253] ___sys_sendmsg+0xee/0x170 [ 2723.247156][ T253] __sys_sendmsg+0xcd/0x170 [ 2723.247156][ T253] do_syscall_64+0xc6/0x1e0 [ 2723.247156][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2723.247156][ T253] [ 2723.249385][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2723.249385][ T253] netdev_get_by_index+0x5e/0x80 [ 2723.249385][ T253] fib6_nh_init+0x3d8/0x1580 [ 2723.249385][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2723.249385][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2723.249385][ T253] ipv6_add_addr+0x411/0x2000 [ 2723.249385][ T253] inet6_addr_add+0x30e/0xa40 [ 2723.249385][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2723.249385][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2723.249385][ T253] netlink_rcv_skb+0x130/0x360 [ 2723.249385][ T253] netlink_unicast+0x449/0x710 [ 2723.249385][ T253] netlink_sendmsg+0x723/0xbe0 [ 2723.249385][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2723.249385][ T253] ___sys_sendmsg+0xee/0x170 [ 2723.249385][ T253] __sys_sendmsg+0xcd/0x170 [ 2723.249385][ T253] do_syscall_64+0xc6/0x1e0 [ 2723.249385][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2723.249385][ T253] [ 2723.251616][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2723.251616][ T253] netdev_get_by_index+0x5e/0x80 [ 2723.251616][ T253] fib6_nh_init+0x3d8/0x1580 [ 2723.251616][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2723.251616][ T253] ip6_route_add+0x1c/0x140 [ 2723.251616][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2723.251616][ T253] addrconf_add_dev+0xe2/0x170 [ 2723.251616][ T253] inet6_addr_add+0x12f/0xa40 [ 2723.251616][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2723.251616][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2723.251616][ T253] netlink_rcv_skb+0x130/0x360 [ 2723.251616][ T253] netlink_unicast+0x449/0x710 [ 2723.251616][ T253] netlink_sendmsg+0x723/0xbe0 [ 2723.251616][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2723.251616][ T253] ___sys_sendmsg+0xee/0x170 [ 2723.251616][ T253] __sys_sendmsg+0xcd/0x170 [ 2723.251616][ T253] do_syscall_64+0xc6/0x1e0 [ 2723.251616][ T253] [ 2723.253809][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2723.253809][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2723.253809][ T253] ipv6_find_idev+0x102/0x170 [ 2723.253809][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2723.253809][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2723.253809][ T253] netlink_rcv_skb+0x130/0x360 [ 2723.253809][ T253] netlink_unicast+0x449/0x710 [ 2723.253809][ T253] netlink_sendmsg+0x723/0xbe0 [ 2723.253809][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2723.253809][ T253] ___sys_sendmsg+0xee/0x170 [ 2723.253809][ T253] __sys_sendmsg+0xcd/0x170 [ 2723.253809][ T253] do_syscall_64+0xc6/0x1e0 [ 2723.253809][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2723.253809][ T253] [ 2723.255528][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2723.255528][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2723.255528][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2723.255528][ T253] ipv6_find_idev+0x102/0x170 [ 2723.255528][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2723.255528][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2723.255528][ T253] netlink_rcv_skb+0x130/0x360 [ 2723.255528][ T253] netlink_unicast+0x449/0x710 [ 2723.255528][ T253] netlink_sendmsg+0x723/0xbe0 [ 2723.255528][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2723.255528][ T253] ___sys_sendmsg+0xee/0x170 [ 2723.255528][ T253] __sys_sendmsg+0xcd/0x170 [ 2723.255528][ T253] do_syscall_64+0xc6/0x1e0 [ 2723.255528][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2723.255528][ T253] [ 2733.426237][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2733.426681][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2733.426681][ T253] dst_init+0x84/0x4a0 [ 2733.426681][ T253] dst_alloc+0x97/0x150 [ 2733.426681][ T253] ip6_dst_alloc+0x23/0x90 [ 2733.426681][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2733.426681][ T253] ip6_pol_route+0x56f/0x840 [ 2733.426681][ T253] fib6_rule_lookup+0x334/0x630 [ 2733.426681][ T253] ip6_route_output_flags+0x259/0x480 [ 2733.426681][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2733.426681][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2733.426681][ T253] netlink_rcv_skb+0x130/0x360 [ 2733.426681][ T253] netlink_unicast+0x449/0x710 [ 2733.426681][ T253] netlink_sendmsg+0x723/0xbe0 [ 2733.426681][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2733.426681][ T253] ___sys_sendmsg+0xee/0x170 [ 2733.426681][ T253] __sys_sendmsg+0xcd/0x170 [ 2733.426681][ T253] do_syscall_64+0xc6/0x1e0 [ 2733.426681][ T253] [ 2733.428911][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2733.428911][ T253] netdev_get_by_index+0x5e/0x80 [ 2733.428911][ T253] fib6_nh_init+0x3d8/0x1580 [ 2733.428911][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2733.428911][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2733.428911][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2733.428911][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2733.428911][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2733.428911][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2733.428911][ T253] addrconf_dad_begin+0x310/0x670 [ 2733.428911][ T253] addrconf_dad_work+0x10b/0xab0 [ 2733.428911][ T253] process_one_work+0x84d/0x18a0 [ 2733.428911][ T253] worker_thread+0x587/0xd30 [ 2733.428911][ T253] kthread+0x28a/0x350 [ 2733.428911][ T253] ret_from_fork+0x31/0x70 [ 2733.428911][ T253] ret_from_fork_asm+0x1a/0x30 [ 2733.428911][ T253] [ 2733.431049][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2733.431049][ T253] netdev_get_by_index+0x5e/0x80 [ 2733.431049][ T253] fib6_nh_init+0x3d8/0x1580 [ 2733.431049][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2733.431049][ T253] ip6_route_add+0x1c/0x140 [ 2733.431049][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2733.431049][ T253] inet6_addr_add+0x4f8/0xa40 [ 2733.431049][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2733.431049][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2733.431049][ T253] netlink_rcv_skb+0x130/0x360 [ 2733.431049][ T253] netlink_unicast+0x449/0x710 [ 2733.431049][ T253] netlink_sendmsg+0x723/0xbe0 [ 2733.431049][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2733.431049][ T253] ___sys_sendmsg+0xee/0x170 [ 2733.431049][ T253] __sys_sendmsg+0xcd/0x170 [ 2733.431049][ T253] do_syscall_64+0xc6/0x1e0 [ 2733.431049][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2733.431049][ T253] [ 2733.433289][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2733.433289][ T253] netdev_get_by_index+0x5e/0x80 [ 2733.433289][ T253] fib6_nh_init+0x3d8/0x1580 [ 2733.433289][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2733.433289][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2733.433289][ T253] ipv6_add_addr+0x411/0x2000 [ 2733.433289][ T253] inet6_addr_add+0x30e/0xa40 [ 2733.433289][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2733.433289][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2733.433289][ T253] netlink_rcv_skb+0x130/0x360 [ 2733.433289][ T253] netlink_unicast+0x449/0x710 [ 2733.433289][ T253] netlink_sendmsg+0x723/0xbe0 [ 2733.433289][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2733.433289][ T253] ___sys_sendmsg+0xee/0x170 [ 2733.433289][ T253] __sys_sendmsg+0xcd/0x170 [ 2733.433289][ T253] do_syscall_64+0xc6/0x1e0 [ 2733.433289][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2733.433289][ T253] [ 2733.435532][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2733.435532][ T253] netdev_get_by_index+0x5e/0x80 [ 2733.435532][ T253] fib6_nh_init+0x3d8/0x1580 [ 2733.435532][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2733.435532][ T253] ip6_route_add+0x1c/0x140 [ 2733.435532][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2733.435532][ T253] addrconf_add_dev+0xe2/0x170 [ 2733.435532][ T253] inet6_addr_add+0x12f/0xa40 [ 2733.435532][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2733.435532][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2733.435532][ T253] netlink_rcv_skb+0x130/0x360 [ 2733.435532][ T253] netlink_unicast+0x449/0x710 [ 2733.435532][ T253] netlink_sendmsg+0x723/0xbe0 [ 2733.435532][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2733.435532][ T253] ___sys_sendmsg+0xee/0x170 [ 2733.435532][ T253] __sys_sendmsg+0xcd/0x170 [ 2733.435532][ T253] do_syscall_64+0xc6/0x1e0 [ 2733.435532][ T253] [ 2733.437739][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2733.437739][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2733.437739][ T253] ipv6_find_idev+0x102/0x170 [ 2733.437739][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2733.437739][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2733.437739][ T253] netlink_rcv_skb+0x130/0x360 [ 2733.437739][ T253] netlink_unicast+0x449/0x710 [ 2733.437739][ T253] netlink_sendmsg+0x723/0xbe0 [ 2733.437739][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2733.437739][ T253] ___sys_sendmsg+0xee/0x170 [ 2733.437739][ T253] __sys_sendmsg+0xcd/0x170 [ 2733.437739][ T253] do_syscall_64+0xc6/0x1e0 [ 2733.437739][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2733.437739][ T253] [ 2733.439462][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2733.439462][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2733.439462][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2733.439462][ T253] ipv6_find_idev+0x102/0x170 [ 2733.439462][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2733.439462][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2733.439462][ T253] netlink_rcv_skb+0x130/0x360 [ 2733.439462][ T253] netlink_unicast+0x449/0x710 [ 2733.439462][ T253] netlink_sendmsg+0x723/0xbe0 [ 2733.439462][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2733.439462][ T253] ___sys_sendmsg+0xee/0x170 [ 2733.439462][ T253] __sys_sendmsg+0xcd/0x170 [ 2733.439462][ T253] do_syscall_64+0xc6/0x1e0 [ 2733.439462][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2733.439462][ T253] [ 2743.682224][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2743.682701][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2743.682701][ T253] dst_init+0x84/0x4a0 [ 2743.682701][ T253] dst_alloc+0x97/0x150 [ 2743.682701][ T253] ip6_dst_alloc+0x23/0x90 [ 2743.682701][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2743.682701][ T253] ip6_pol_route+0x56f/0x840 [ 2743.682701][ T253] fib6_rule_lookup+0x334/0x630 [ 2743.682701][ T253] ip6_route_output_flags+0x259/0x480 [ 2743.682701][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2743.682701][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2743.682701][ T253] netlink_rcv_skb+0x130/0x360 [ 2743.682701][ T253] netlink_unicast+0x449/0x710 [ 2743.682701][ T253] netlink_sendmsg+0x723/0xbe0 [ 2743.682701][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2743.682701][ T253] ___sys_sendmsg+0xee/0x170 [ 2743.682701][ T253] __sys_sendmsg+0xcd/0x170 [ 2743.682701][ T253] do_syscall_64+0xc6/0x1e0 [ 2743.682701][ T253] [ 2743.684893][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2743.684893][ T253] netdev_get_by_index+0x5e/0x80 [ 2743.684893][ T253] fib6_nh_init+0x3d8/0x1580 [ 2743.684893][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2743.684893][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2743.684893][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2743.684893][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2743.684893][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2743.684893][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2743.684893][ T253] addrconf_dad_begin+0x310/0x670 [ 2743.684893][ T253] addrconf_dad_work+0x10b/0xab0 [ 2743.684893][ T253] process_one_work+0x84d/0x18a0 [ 2743.684893][ T253] worker_thread+0x587/0xd30 [ 2743.684893][ T253] kthread+0x28a/0x350 [ 2743.684893][ T253] ret_from_fork+0x31/0x70 [ 2743.684893][ T253] ret_from_fork_asm+0x1a/0x30 [ 2743.684893][ T253] [ 2743.687032][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2743.687032][ T253] netdev_get_by_index+0x5e/0x80 [ 2743.687032][ T253] fib6_nh_init+0x3d8/0x1580 [ 2743.687032][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2743.687032][ T253] ip6_route_add+0x1c/0x140 [ 2743.687032][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2743.687032][ T253] inet6_addr_add+0x4f8/0xa40 [ 2743.687032][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2743.687032][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2743.687032][ T253] netlink_rcv_skb+0x130/0x360 [ 2743.687032][ T253] netlink_unicast+0x449/0x710 [ 2743.687032][ T253] netlink_sendmsg+0x723/0xbe0 [ 2743.687032][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2743.687032][ T253] ___sys_sendmsg+0xee/0x170 [ 2743.687032][ T253] __sys_sendmsg+0xcd/0x170 [ 2743.687032][ T253] do_syscall_64+0xc6/0x1e0 [ 2743.687032][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2743.687032][ T253] [ 2743.689261][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2743.689261][ T253] netdev_get_by_index+0x5e/0x80 [ 2743.689261][ T253] fib6_nh_init+0x3d8/0x1580 [ 2743.689261][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2743.689261][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2743.689261][ T253] ipv6_add_addr+0x411/0x2000 [ 2743.689261][ T253] inet6_addr_add+0x30e/0xa40 [ 2743.689261][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2743.689261][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2743.689261][ T253] netlink_rcv_skb+0x130/0x360 [ 2743.689261][ T253] netlink_unicast+0x449/0x710 [ 2743.689261][ T253] netlink_sendmsg+0x723/0xbe0 [ 2743.689261][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2743.689261][ T253] ___sys_sendmsg+0xee/0x170 [ 2743.689261][ T253] __sys_sendmsg+0xcd/0x170 [ 2743.689261][ T253] do_syscall_64+0xc6/0x1e0 [ 2743.689261][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2743.689261][ T253] [ 2743.691495][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2743.691495][ T253] netdev_get_by_index+0x5e/0x80 [ 2743.691495][ T253] fib6_nh_init+0x3d8/0x1580 [ 2743.691495][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2743.691495][ T253] ip6_route_add+0x1c/0x140 [ 2743.691495][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2743.691495][ T253] addrconf_add_dev+0xe2/0x170 [ 2743.691495][ T253] inet6_addr_add+0x12f/0xa40 [ 2743.691495][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2743.691495][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2743.691495][ T253] netlink_rcv_skb+0x130/0x360 [ 2743.691495][ T253] netlink_unicast+0x449/0x710 [ 2743.691495][ T253] netlink_sendmsg+0x723/0xbe0 [ 2743.691495][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2743.691495][ T253] ___sys_sendmsg+0xee/0x170 [ 2743.691495][ T253] __sys_sendmsg+0xcd/0x170 [ 2743.691495][ T253] do_syscall_64+0xc6/0x1e0 [ 2743.691495][ T253] [ 2743.693687][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2743.693687][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2743.693687][ T253] ipv6_find_idev+0x102/0x170 [ 2743.693687][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2743.693687][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2743.693687][ T253] netlink_rcv_skb+0x130/0x360 [ 2743.693687][ T253] netlink_unicast+0x449/0x710 [ 2743.693687][ T253] netlink_sendmsg+0x723/0xbe0 [ 2743.693687][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2743.693687][ T253] ___sys_sendmsg+0xee/0x170 [ 2743.693687][ T253] __sys_sendmsg+0xcd/0x170 [ 2743.693687][ T253] do_syscall_64+0xc6/0x1e0 [ 2743.693687][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2743.693687][ T253] [ 2743.695417][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2743.695417][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2743.695417][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2743.695417][ T253] ipv6_find_idev+0x102/0x170 [ 2743.695417][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2743.695417][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2743.695417][ T253] netlink_rcv_skb+0x130/0x360 [ 2743.695417][ T253] netlink_unicast+0x449/0x710 [ 2743.695417][ T253] netlink_sendmsg+0x723/0xbe0 [ 2743.695417][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2743.695417][ T253] ___sys_sendmsg+0xee/0x170 [ 2743.695417][ T253] __sys_sendmsg+0xcd/0x170 [ 2743.695417][ T253] do_syscall_64+0xc6/0x1e0 [ 2743.695417][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2743.695417][ T253] [ 2753.938295][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2753.938783][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2753.938783][ T253] dst_init+0x84/0x4a0 [ 2753.938783][ T253] dst_alloc+0x97/0x150 [ 2753.938783][ T253] ip6_dst_alloc+0x23/0x90 [ 2753.938783][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2753.938783][ T253] ip6_pol_route+0x56f/0x840 [ 2753.938783][ T253] fib6_rule_lookup+0x334/0x630 [ 2753.938783][ T253] ip6_route_output_flags+0x259/0x480 [ 2753.938783][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2753.938783][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2753.938783][ T253] netlink_rcv_skb+0x130/0x360 [ 2753.938783][ T253] netlink_unicast+0x449/0x710 [ 2753.938783][ T253] netlink_sendmsg+0x723/0xbe0 [ 2753.938783][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2753.938783][ T253] ___sys_sendmsg+0xee/0x170 [ 2753.938783][ T253] __sys_sendmsg+0xcd/0x170 [ 2753.938783][ T253] do_syscall_64+0xc6/0x1e0 [ 2753.938783][ T253] [ 2753.941391][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2753.941391][ T253] netdev_get_by_index+0x5e/0x80 [ 2753.941391][ T253] fib6_nh_init+0x3d8/0x1580 [ 2753.941391][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2753.941391][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2753.941391][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2753.941391][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2753.941391][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2753.941391][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2753.941391][ T253] addrconf_dad_begin+0x310/0x670 [ 2753.941391][ T253] addrconf_dad_work+0x10b/0xab0 [ 2753.941391][ T253] process_one_work+0x84d/0x18a0 [ 2753.941391][ T253] worker_thread+0x587/0xd30 [ 2753.941391][ T253] kthread+0x28a/0x350 [ 2753.941391][ T253] ret_from_fork+0x31/0x70 [ 2753.941391][ T253] ret_from_fork_asm+0x1a/0x30 [ 2753.941391][ T253] [ 2753.943563][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2753.943563][ T253] netdev_get_by_index+0x5e/0x80 [ 2753.943563][ T253] fib6_nh_init+0x3d8/0x1580 [ 2753.943563][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2753.943563][ T253] ip6_route_add+0x1c/0x140 [ 2753.943563][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2753.943563][ T253] inet6_addr_add+0x4f8/0xa40 [ 2753.943563][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2753.943563][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2753.943563][ T253] netlink_rcv_skb+0x130/0x360 [ 2753.943563][ T253] netlink_unicast+0x449/0x710 [ 2753.943563][ T253] netlink_sendmsg+0x723/0xbe0 [ 2753.943563][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2753.943563][ T253] ___sys_sendmsg+0xee/0x170 [ 2753.943563][ T253] __sys_sendmsg+0xcd/0x170 [ 2753.943563][ T253] do_syscall_64+0xc6/0x1e0 [ 2753.943563][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2753.943563][ T253] [ 2753.945822][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2753.945822][ T253] netdev_get_by_index+0x5e/0x80 [ 2753.945822][ T253] fib6_nh_init+0x3d8/0x1580 [ 2753.945822][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2753.945822][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2753.945822][ T253] ipv6_add_addr+0x411/0x2000 [ 2753.945822][ T253] inet6_addr_add+0x30e/0xa40 [ 2753.945822][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2753.945822][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2753.945822][ T253] netlink_rcv_skb+0x130/0x360 [ 2753.945822][ T253] netlink_unicast+0x449/0x710 [ 2753.945822][ T253] netlink_sendmsg+0x723/0xbe0 [ 2753.945822][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2753.945822][ T253] ___sys_sendmsg+0xee/0x170 [ 2753.945822][ T253] __sys_sendmsg+0xcd/0x170 [ 2753.945822][ T253] do_syscall_64+0xc6/0x1e0 [ 2753.945822][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2753.945822][ T253] [ 2753.948098][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2753.948098][ T253] netdev_get_by_index+0x5e/0x80 [ 2753.948098][ T253] fib6_nh_init+0x3d8/0x1580 [ 2753.948098][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2753.948098][ T253] ip6_route_add+0x1c/0x140 [ 2753.948098][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2753.948098][ T253] addrconf_add_dev+0xe2/0x170 [ 2753.948098][ T253] inet6_addr_add+0x12f/0xa40 [ 2753.948098][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2753.948098][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2753.948098][ T253] netlink_rcv_skb+0x130/0x360 [ 2753.948098][ T253] netlink_unicast+0x449/0x710 [ 2753.948098][ T253] netlink_sendmsg+0x723/0xbe0 [ 2753.948098][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2753.948098][ T253] ___sys_sendmsg+0xee/0x170 [ 2753.948098][ T253] __sys_sendmsg+0xcd/0x170 [ 2753.948098][ T253] do_syscall_64+0xc6/0x1e0 [ 2753.948098][ T253] [ 2753.950325][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2753.950325][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2753.950325][ T253] ipv6_find_idev+0x102/0x170 [ 2753.950325][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2753.950325][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2753.950325][ T253] netlink_rcv_skb+0x130/0x360 [ 2753.950325][ T253] netlink_unicast+0x449/0x710 [ 2753.950325][ T253] netlink_sendmsg+0x723/0xbe0 [ 2753.950325][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2753.950325][ T253] ___sys_sendmsg+0xee/0x170 [ 2753.950325][ T253] __sys_sendmsg+0xcd/0x170 [ 2753.950325][ T253] do_syscall_64+0xc6/0x1e0 [ 2753.950325][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2753.950325][ T253] [ 2753.952069][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2753.952069][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2753.952069][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2753.952069][ T253] ipv6_find_idev+0x102/0x170 [ 2753.952069][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2753.952069][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2753.952069][ T253] netlink_rcv_skb+0x130/0x360 [ 2753.952069][ T253] netlink_unicast+0x449/0x710 [ 2753.952069][ T253] netlink_sendmsg+0x723/0xbe0 [ 2753.952069][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2753.952069][ T253] ___sys_sendmsg+0xee/0x170 [ 2753.952069][ T253] __sys_sendmsg+0xcd/0x170 [ 2753.952069][ T253] do_syscall_64+0xc6/0x1e0 [ 2753.952069][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2753.952069][ T253] [ 2764.194302][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2764.194801][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2764.194801][ T253] dst_init+0x84/0x4a0 [ 2764.194801][ T253] dst_alloc+0x97/0x150 [ 2764.194801][ T253] ip6_dst_alloc+0x23/0x90 [ 2764.194801][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2764.194801][ T253] ip6_pol_route+0x56f/0x840 [ 2764.194801][ T253] fib6_rule_lookup+0x334/0x630 [ 2764.194801][ T253] ip6_route_output_flags+0x259/0x480 [ 2764.194801][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2764.194801][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2764.194801][ T253] netlink_rcv_skb+0x130/0x360 [ 2764.194801][ T253] netlink_unicast+0x449/0x710 [ 2764.194801][ T253] netlink_sendmsg+0x723/0xbe0 [ 2764.194801][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2764.194801][ T253] ___sys_sendmsg+0xee/0x170 [ 2764.194801][ T253] __sys_sendmsg+0xcd/0x170 [ 2764.194801][ T253] do_syscall_64+0xc6/0x1e0 [ 2764.194801][ T253] [ 2764.197035][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2764.197035][ T253] netdev_get_by_index+0x5e/0x80 [ 2764.197035][ T253] fib6_nh_init+0x3d8/0x1580 [ 2764.197035][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2764.197035][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2764.197035][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2764.197035][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2764.197035][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2764.197035][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2764.197035][ T253] addrconf_dad_begin+0x310/0x670 [ 2764.197035][ T253] addrconf_dad_work+0x10b/0xab0 [ 2764.197035][ T253] process_one_work+0x84d/0x18a0 [ 2764.197035][ T253] worker_thread+0x587/0xd30 [ 2764.197035][ T253] kthread+0x28a/0x350 [ 2764.197035][ T253] ret_from_fork+0x31/0x70 [ 2764.197035][ T253] ret_from_fork_asm+0x1a/0x30 [ 2764.197035][ T253] [ 2764.199204][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2764.199204][ T253] netdev_get_by_index+0x5e/0x80 [ 2764.199204][ T253] fib6_nh_init+0x3d8/0x1580 [ 2764.199204][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2764.199204][ T253] ip6_route_add+0x1c/0x140 [ 2764.199204][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2764.199204][ T253] inet6_addr_add+0x4f8/0xa40 [ 2764.199204][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2764.199204][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2764.199204][ T253] netlink_rcv_skb+0x130/0x360 [ 2764.199204][ T253] netlink_unicast+0x449/0x710 [ 2764.199204][ T253] netlink_sendmsg+0x723/0xbe0 [ 2764.199204][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2764.199204][ T253] ___sys_sendmsg+0xee/0x170 [ 2764.199204][ T253] __sys_sendmsg+0xcd/0x170 [ 2764.199204][ T253] do_syscall_64+0xc6/0x1e0 [ 2764.199204][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2764.199204][ T253] [ 2764.201464][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2764.201464][ T253] netdev_get_by_index+0x5e/0x80 [ 2764.201464][ T253] fib6_nh_init+0x3d8/0x1580 [ 2764.201464][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2764.201464][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2764.201464][ T253] ipv6_add_addr+0x411/0x2000 [ 2764.201464][ T253] inet6_addr_add+0x30e/0xa40 [ 2764.201464][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2764.201464][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2764.201464][ T253] netlink_rcv_skb+0x130/0x360 [ 2764.201464][ T253] netlink_unicast+0x449/0x710 [ 2764.201464][ T253] netlink_sendmsg+0x723/0xbe0 [ 2764.201464][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2764.201464][ T253] ___sys_sendmsg+0xee/0x170 [ 2764.201464][ T253] __sys_sendmsg+0xcd/0x170 [ 2764.201464][ T253] do_syscall_64+0xc6/0x1e0 [ 2764.201464][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2764.201464][ T253] [ 2764.203730][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2764.203730][ T253] netdev_get_by_index+0x5e/0x80 [ 2764.203730][ T253] fib6_nh_init+0x3d8/0x1580 [ 2764.203730][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2764.203730][ T253] ip6_route_add+0x1c/0x140 [ 2764.203730][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2764.203730][ T253] addrconf_add_dev+0xe2/0x170 [ 2764.203730][ T253] inet6_addr_add+0x12f/0xa40 [ 2764.203730][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2764.203730][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2764.203730][ T253] netlink_rcv_skb+0x130/0x360 [ 2764.203730][ T253] netlink_unicast+0x449/0x710 [ 2764.203730][ T253] netlink_sendmsg+0x723/0xbe0 [ 2764.203730][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2764.203730][ T253] ___sys_sendmsg+0xee/0x170 [ 2764.203730][ T253] __sys_sendmsg+0xcd/0x170 [ 2764.203730][ T253] do_syscall_64+0xc6/0x1e0 [ 2764.203730][ T253] [ 2764.205955][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2764.205955][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2764.205955][ T253] ipv6_find_idev+0x102/0x170 [ 2764.205955][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2764.205955][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2764.205955][ T253] netlink_rcv_skb+0x130/0x360 [ 2764.205955][ T253] netlink_unicast+0x449/0x710 [ 2764.205955][ T253] netlink_sendmsg+0x723/0xbe0 [ 2764.205955][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2764.205955][ T253] ___sys_sendmsg+0xee/0x170 [ 2764.205955][ T253] __sys_sendmsg+0xcd/0x170 [ 2764.205955][ T253] do_syscall_64+0xc6/0x1e0 [ 2764.205955][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2764.205955][ T253] [ 2764.207702][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2764.207702][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2764.207702][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2764.207702][ T253] ipv6_find_idev+0x102/0x170 [ 2764.207702][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2764.207702][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2764.207702][ T253] netlink_rcv_skb+0x130/0x360 [ 2764.207702][ T253] netlink_unicast+0x449/0x710 [ 2764.207702][ T253] netlink_sendmsg+0x723/0xbe0 [ 2764.207702][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2764.207702][ T253] ___sys_sendmsg+0xee/0x170 [ 2764.207702][ T253] __sys_sendmsg+0xcd/0x170 [ 2764.207702][ T253] do_syscall_64+0xc6/0x1e0 [ 2764.207702][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2764.207702][ T253] [ 2774.450364][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2774.450856][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2774.450856][ T253] dst_init+0x84/0x4a0 [ 2774.450856][ T253] dst_alloc+0x97/0x150 [ 2774.450856][ T253] ip6_dst_alloc+0x23/0x90 [ 2774.450856][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2774.450856][ T253] ip6_pol_route+0x56f/0x840 [ 2774.450856][ T253] fib6_rule_lookup+0x334/0x630 [ 2774.450856][ T253] ip6_route_output_flags+0x259/0x480 [ 2774.450856][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2774.450856][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2774.450856][ T253] netlink_rcv_skb+0x130/0x360 [ 2774.450856][ T253] netlink_unicast+0x449/0x710 [ 2774.450856][ T253] netlink_sendmsg+0x723/0xbe0 [ 2774.450856][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2774.450856][ T253] ___sys_sendmsg+0xee/0x170 [ 2774.450856][ T253] __sys_sendmsg+0xcd/0x170 [ 2774.450856][ T253] do_syscall_64+0xc6/0x1e0 [ 2774.450856][ T253] [ 2774.453085][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2774.453085][ T253] netdev_get_by_index+0x5e/0x80 [ 2774.453085][ T253] fib6_nh_init+0x3d8/0x1580 [ 2774.453085][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2774.453085][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2774.453085][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2774.453085][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2774.453085][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2774.453085][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2774.453085][ T253] addrconf_dad_begin+0x310/0x670 [ 2774.453085][ T253] addrconf_dad_work+0x10b/0xab0 [ 2774.453085][ T253] process_one_work+0x84d/0x18a0 [ 2774.453085][ T253] worker_thread+0x587/0xd30 [ 2774.453085][ T253] kthread+0x28a/0x350 [ 2774.453085][ T253] ret_from_fork+0x31/0x70 [ 2774.453085][ T253] ret_from_fork_asm+0x1a/0x30 [ 2774.453085][ T253] [ 2774.455245][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2774.455245][ T253] netdev_get_by_index+0x5e/0x80 [ 2774.455245][ T253] fib6_nh_init+0x3d8/0x1580 [ 2774.455245][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2774.455245][ T253] ip6_route_add+0x1c/0x140 [ 2774.455245][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2774.455245][ T253] inet6_addr_add+0x4f8/0xa40 [ 2774.455245][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2774.455245][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2774.455245][ T253] netlink_rcv_skb+0x130/0x360 [ 2774.455245][ T253] netlink_unicast+0x449/0x710 [ 2774.455245][ T253] netlink_sendmsg+0x723/0xbe0 [ 2774.455245][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2774.455245][ T253] ___sys_sendmsg+0xee/0x170 [ 2774.455245][ T253] __sys_sendmsg+0xcd/0x170 [ 2774.455245][ T253] do_syscall_64+0xc6/0x1e0 [ 2774.455245][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2774.455245][ T253] [ 2774.457532][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2774.457532][ T253] netdev_get_by_index+0x5e/0x80 [ 2774.457532][ T253] fib6_nh_init+0x3d8/0x1580 [ 2774.457532][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2774.457532][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2774.457532][ T253] ipv6_add_addr+0x411/0x2000 [ 2774.457532][ T253] inet6_addr_add+0x30e/0xa40 [ 2774.457532][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2774.457532][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2774.457532][ T253] netlink_rcv_skb+0x130/0x360 [ 2774.457532][ T253] netlink_unicast+0x449/0x710 [ 2774.457532][ T253] netlink_sendmsg+0x723/0xbe0 [ 2774.457532][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2774.457532][ T253] ___sys_sendmsg+0xee/0x170 [ 2774.457532][ T253] __sys_sendmsg+0xcd/0x170 [ 2774.457532][ T253] do_syscall_64+0xc6/0x1e0 [ 2774.457532][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2774.457532][ T253] [ 2774.459794][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2774.459794][ T253] netdev_get_by_index+0x5e/0x80 [ 2774.459794][ T253] fib6_nh_init+0x3d8/0x1580 [ 2774.459794][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2774.459794][ T253] ip6_route_add+0x1c/0x140 [ 2774.459794][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2774.459794][ T253] addrconf_add_dev+0xe2/0x170 [ 2774.459794][ T253] inet6_addr_add+0x12f/0xa40 [ 2774.459794][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2774.459794][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2774.459794][ T253] netlink_rcv_skb+0x130/0x360 [ 2774.459794][ T253] netlink_unicast+0x449/0x710 [ 2774.459794][ T253] netlink_sendmsg+0x723/0xbe0 [ 2774.459794][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2774.459794][ T253] ___sys_sendmsg+0xee/0x170 [ 2774.459794][ T253] __sys_sendmsg+0xcd/0x170 [ 2774.459794][ T253] do_syscall_64+0xc6/0x1e0 [ 2774.459794][ T253] [ 2774.462032][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2774.462032][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2774.462032][ T253] ipv6_find_idev+0x102/0x170 [ 2774.462032][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2774.462032][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2774.462032][ T253] netlink_rcv_skb+0x130/0x360 [ 2774.462032][ T253] netlink_unicast+0x449/0x710 [ 2774.462032][ T253] netlink_sendmsg+0x723/0xbe0 [ 2774.462032][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2774.462032][ T253] ___sys_sendmsg+0xee/0x170 [ 2774.462032][ T253] __sys_sendmsg+0xcd/0x170 [ 2774.462032][ T253] do_syscall_64+0xc6/0x1e0 [ 2774.462032][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2774.462032][ T253] [ 2774.463781][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2774.463781][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2774.463781][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2774.463781][ T253] ipv6_find_idev+0x102/0x170 [ 2774.463781][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2774.463781][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2774.463781][ T253] netlink_rcv_skb+0x130/0x360 [ 2774.463781][ T253] netlink_unicast+0x449/0x710 [ 2774.463781][ T253] netlink_sendmsg+0x723/0xbe0 [ 2774.463781][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2774.463781][ T253] ___sys_sendmsg+0xee/0x170 [ 2774.463781][ T253] __sys_sendmsg+0xcd/0x170 [ 2774.463781][ T253] do_syscall_64+0xc6/0x1e0 [ 2774.463781][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2774.463781][ T253] [ 2784.706313][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2784.706740][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2784.706740][ T253] dst_init+0x84/0x4a0 [ 2784.706740][ T253] dst_alloc+0x97/0x150 [ 2784.706740][ T253] ip6_dst_alloc+0x23/0x90 [ 2784.706740][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2784.706740][ T253] ip6_pol_route+0x56f/0x840 [ 2784.706740][ T253] fib6_rule_lookup+0x334/0x630 [ 2784.706740][ T253] ip6_route_output_flags+0x259/0x480 [ 2784.706740][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2784.706740][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2784.706740][ T253] netlink_rcv_skb+0x130/0x360 [ 2784.706740][ T253] netlink_unicast+0x449/0x710 [ 2784.706740][ T253] netlink_sendmsg+0x723/0xbe0 [ 2784.706740][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2784.706740][ T253] ___sys_sendmsg+0xee/0x170 [ 2784.706740][ T253] __sys_sendmsg+0xcd/0x170 [ 2784.706740][ T253] do_syscall_64+0xc6/0x1e0 [ 2784.706740][ T253] [ 2784.708978][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2784.708978][ T253] netdev_get_by_index+0x5e/0x80 [ 2784.708978][ T253] fib6_nh_init+0x3d8/0x1580 [ 2784.708978][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2784.708978][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2784.708978][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2784.708978][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2784.708978][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2784.708978][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2784.708978][ T253] addrconf_dad_begin+0x310/0x670 [ 2784.708978][ T253] addrconf_dad_work+0x10b/0xab0 [ 2784.708978][ T253] process_one_work+0x84d/0x18a0 [ 2784.708978][ T253] worker_thread+0x587/0xd30 [ 2784.708978][ T253] kthread+0x28a/0x350 [ 2784.708978][ T253] ret_from_fork+0x31/0x70 [ 2784.708978][ T253] ret_from_fork_asm+0x1a/0x30 [ 2784.708978][ T253] [ 2784.711140][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2784.711140][ T253] netdev_get_by_index+0x5e/0x80 [ 2784.711140][ T253] fib6_nh_init+0x3d8/0x1580 [ 2784.711140][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2784.711140][ T253] ip6_route_add+0x1c/0x140 [ 2784.711140][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2784.711140][ T253] inet6_addr_add+0x4f8/0xa40 [ 2784.711140][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2784.711140][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2784.711140][ T253] netlink_rcv_skb+0x130/0x360 [ 2784.711140][ T253] netlink_unicast+0x449/0x710 [ 2784.711140][ T253] netlink_sendmsg+0x723/0xbe0 [ 2784.711140][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2784.711140][ T253] ___sys_sendmsg+0xee/0x170 [ 2784.711140][ T253] __sys_sendmsg+0xcd/0x170 [ 2784.711140][ T253] do_syscall_64+0xc6/0x1e0 [ 2784.711140][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2784.711140][ T253] [ 2784.713407][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2784.713407][ T253] netdev_get_by_index+0x5e/0x80 [ 2784.713407][ T253] fib6_nh_init+0x3d8/0x1580 [ 2784.713407][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2784.713407][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2784.713407][ T253] ipv6_add_addr+0x411/0x2000 [ 2784.713407][ T253] inet6_addr_add+0x30e/0xa40 [ 2784.713407][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2784.713407][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2784.713407][ T253] netlink_rcv_skb+0x130/0x360 [ 2784.713407][ T253] netlink_unicast+0x449/0x710 [ 2784.713407][ T253] netlink_sendmsg+0x723/0xbe0 [ 2784.713407][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2784.713407][ T253] ___sys_sendmsg+0xee/0x170 [ 2784.713407][ T253] __sys_sendmsg+0xcd/0x170 [ 2784.713407][ T253] do_syscall_64+0xc6/0x1e0 [ 2784.713407][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2784.713407][ T253] [ 2784.715674][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2784.715674][ T253] netdev_get_by_index+0x5e/0x80 [ 2784.715674][ T253] fib6_nh_init+0x3d8/0x1580 [ 2784.715674][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2784.715674][ T253] ip6_route_add+0x1c/0x140 [ 2784.715674][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2784.715674][ T253] addrconf_add_dev+0xe2/0x170 [ 2784.715674][ T253] inet6_addr_add+0x12f/0xa40 [ 2784.715674][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2784.715674][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2784.715674][ T253] netlink_rcv_skb+0x130/0x360 [ 2784.715674][ T253] netlink_unicast+0x449/0x710 [ 2784.715674][ T253] netlink_sendmsg+0x723/0xbe0 [ 2784.715674][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2784.715674][ T253] ___sys_sendmsg+0xee/0x170 [ 2784.715674][ T253] __sys_sendmsg+0xcd/0x170 [ 2784.715674][ T253] do_syscall_64+0xc6/0x1e0 [ 2784.715674][ T253] [ 2784.717919][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2784.717919][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2784.717919][ T253] ipv6_find_idev+0x102/0x170 [ 2784.717919][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2784.717919][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2784.717919][ T253] netlink_rcv_skb+0x130/0x360 [ 2784.717919][ T253] netlink_unicast+0x449/0x710 [ 2784.717919][ T253] netlink_sendmsg+0x723/0xbe0 [ 2784.717919][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2784.717919][ T253] ___sys_sendmsg+0xee/0x170 [ 2784.717919][ T253] __sys_sendmsg+0xcd/0x170 [ 2784.717919][ T253] do_syscall_64+0xc6/0x1e0 [ 2784.717919][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2784.717919][ T253] [ 2784.719664][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2784.719664][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2784.719664][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2784.719664][ T253] ipv6_find_idev+0x102/0x170 [ 2784.719664][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2784.719664][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2784.719664][ T253] netlink_rcv_skb+0x130/0x360 [ 2784.719664][ T253] netlink_unicast+0x449/0x710 [ 2784.719664][ T253] netlink_sendmsg+0x723/0xbe0 [ 2784.719664][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2784.719664][ T253] ___sys_sendmsg+0xee/0x170 [ 2784.719664][ T253] __sys_sendmsg+0xcd/0x170 [ 2784.719664][ T253] do_syscall_64+0xc6/0x1e0 [ 2784.719664][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2784.719664][ T253] [ 2794.962303][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2794.962733][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2794.962733][ T253] dst_init+0x84/0x4a0 [ 2794.962733][ T253] dst_alloc+0x97/0x150 [ 2794.962733][ T253] ip6_dst_alloc+0x23/0x90 [ 2794.962733][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2794.962733][ T253] ip6_pol_route+0x56f/0x840 [ 2794.962733][ T253] fib6_rule_lookup+0x334/0x630 [ 2794.962733][ T253] ip6_route_output_flags+0x259/0x480 [ 2794.962733][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2794.962733][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2794.962733][ T253] netlink_rcv_skb+0x130/0x360 [ 2794.962733][ T253] netlink_unicast+0x449/0x710 [ 2794.962733][ T253] netlink_sendmsg+0x723/0xbe0 [ 2794.962733][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2794.962733][ T253] ___sys_sendmsg+0xee/0x170 [ 2794.962733][ T253] __sys_sendmsg+0xcd/0x170 [ 2794.962733][ T253] do_syscall_64+0xc6/0x1e0 [ 2794.962733][ T253] [ 2794.964949][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2794.964949][ T253] netdev_get_by_index+0x5e/0x80 [ 2794.964949][ T253] fib6_nh_init+0x3d8/0x1580 [ 2794.964949][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2794.964949][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2794.964949][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2794.964949][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2794.964949][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2794.964949][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2794.964949][ T253] addrconf_dad_begin+0x310/0x670 [ 2794.964949][ T253] addrconf_dad_work+0x10b/0xab0 [ 2794.964949][ T253] process_one_work+0x84d/0x18a0 [ 2794.964949][ T253] worker_thread+0x587/0xd30 [ 2794.964949][ T253] kthread+0x28a/0x350 [ 2794.964949][ T253] ret_from_fork+0x31/0x70 [ 2794.964949][ T253] ret_from_fork_asm+0x1a/0x30 [ 2794.964949][ T253] [ 2794.967136][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2794.967136][ T253] netdev_get_by_index+0x5e/0x80 [ 2794.967136][ T253] fib6_nh_init+0x3d8/0x1580 [ 2794.967136][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2794.967136][ T253] ip6_route_add+0x1c/0x140 [ 2794.967136][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2794.967136][ T253] inet6_addr_add+0x4f8/0xa40 [ 2794.967136][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2794.967136][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2794.967136][ T253] netlink_rcv_skb+0x130/0x360 [ 2794.967136][ T253] netlink_unicast+0x449/0x710 [ 2794.967136][ T253] netlink_sendmsg+0x723/0xbe0 [ 2794.967136][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2794.967136][ T253] ___sys_sendmsg+0xee/0x170 [ 2794.967136][ T253] __sys_sendmsg+0xcd/0x170 [ 2794.967136][ T253] do_syscall_64+0xc6/0x1e0 [ 2794.967136][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2794.967136][ T253] [ 2794.969401][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2794.969401][ T253] netdev_get_by_index+0x5e/0x80 [ 2794.969401][ T253] fib6_nh_init+0x3d8/0x1580 [ 2794.969401][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2794.969401][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2794.969401][ T253] ipv6_add_addr+0x411/0x2000 [ 2794.969401][ T253] inet6_addr_add+0x30e/0xa40 [ 2794.969401][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2794.969401][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2794.969401][ T253] netlink_rcv_skb+0x130/0x360 [ 2794.969401][ T253] netlink_unicast+0x449/0x710 [ 2794.969401][ T253] netlink_sendmsg+0x723/0xbe0 [ 2794.969401][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2794.969401][ T253] ___sys_sendmsg+0xee/0x170 [ 2794.969401][ T253] __sys_sendmsg+0xcd/0x170 [ 2794.969401][ T253] do_syscall_64+0xc6/0x1e0 [ 2794.969401][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2794.969401][ T253] [ 2794.971662][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2794.971662][ T253] netdev_get_by_index+0x5e/0x80 [ 2794.971662][ T253] fib6_nh_init+0x3d8/0x1580 [ 2794.971662][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2794.971662][ T253] ip6_route_add+0x1c/0x140 [ 2794.971662][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2794.971662][ T253] addrconf_add_dev+0xe2/0x170 [ 2794.971662][ T253] inet6_addr_add+0x12f/0xa40 [ 2794.971662][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2794.971662][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2794.971662][ T253] netlink_rcv_skb+0x130/0x360 [ 2794.971662][ T253] netlink_unicast+0x449/0x710 [ 2794.971662][ T253] netlink_sendmsg+0x723/0xbe0 [ 2794.971662][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2794.971662][ T253] ___sys_sendmsg+0xee/0x170 [ 2794.971662][ T253] __sys_sendmsg+0xcd/0x170 [ 2794.971662][ T253] do_syscall_64+0xc6/0x1e0 [ 2794.971662][ T253] [ 2794.973880][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2794.973880][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2794.973880][ T253] ipv6_find_idev+0x102/0x170 [ 2794.973880][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2794.973880][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2794.973880][ T253] netlink_rcv_skb+0x130/0x360 [ 2794.973880][ T253] netlink_unicast+0x449/0x710 [ 2794.973880][ T253] netlink_sendmsg+0x723/0xbe0 [ 2794.973880][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2794.973880][ T253] ___sys_sendmsg+0xee/0x170 [ 2794.973880][ T253] __sys_sendmsg+0xcd/0x170 [ 2794.973880][ T253] do_syscall_64+0xc6/0x1e0 [ 2794.973880][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2794.973880][ T253] [ 2794.975622][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2794.975622][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2794.975622][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2794.975622][ T253] ipv6_find_idev+0x102/0x170 [ 2794.975622][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2794.975622][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2794.975622][ T253] netlink_rcv_skb+0x130/0x360 [ 2794.975622][ T253] netlink_unicast+0x449/0x710 [ 2794.975622][ T253] netlink_sendmsg+0x723/0xbe0 [ 2794.975622][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2794.975622][ T253] ___sys_sendmsg+0xee/0x170 [ 2794.975622][ T253] __sys_sendmsg+0xcd/0x170 [ 2794.975622][ T253] do_syscall_64+0xc6/0x1e0 [ 2794.975622][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2794.975622][ T253] [ 2805.218304][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2805.218829][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2805.218829][ T253] dst_init+0x84/0x4a0 [ 2805.218829][ T253] dst_alloc+0x97/0x150 [ 2805.218829][ T253] ip6_dst_alloc+0x23/0x90 [ 2805.218829][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2805.218829][ T253] ip6_pol_route+0x56f/0x840 [ 2805.218829][ T253] fib6_rule_lookup+0x334/0x630 [ 2805.218829][ T253] ip6_route_output_flags+0x259/0x480 [ 2805.218829][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2805.218829][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2805.218829][ T253] netlink_rcv_skb+0x130/0x360 [ 2805.218829][ T253] netlink_unicast+0x449/0x710 [ 2805.218829][ T253] netlink_sendmsg+0x723/0xbe0 [ 2805.218829][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2805.218829][ T253] ___sys_sendmsg+0xee/0x170 [ 2805.218829][ T253] __sys_sendmsg+0xcd/0x170 [ 2805.218829][ T253] do_syscall_64+0xc6/0x1e0 [ 2805.218829][ T253] [ 2805.221048][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2805.221048][ T253] netdev_get_by_index+0x5e/0x80 [ 2805.221048][ T253] fib6_nh_init+0x3d8/0x1580 [ 2805.221048][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2805.221048][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2805.221048][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2805.221048][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2805.221048][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2805.221048][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2805.221048][ T253] addrconf_dad_begin+0x310/0x670 [ 2805.221048][ T253] addrconf_dad_work+0x10b/0xab0 [ 2805.221048][ T253] process_one_work+0x84d/0x18a0 [ 2805.221048][ T253] worker_thread+0x587/0xd30 [ 2805.221048][ T253] kthread+0x28a/0x350 [ 2805.221048][ T253] ret_from_fork+0x31/0x70 [ 2805.221048][ T253] ret_from_fork_asm+0x1a/0x30 [ 2805.221048][ T253] [ 2805.223211][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2805.223211][ T253] netdev_get_by_index+0x5e/0x80 [ 2805.223211][ T253] fib6_nh_init+0x3d8/0x1580 [ 2805.223211][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2805.223211][ T253] ip6_route_add+0x1c/0x140 [ 2805.223211][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2805.223211][ T253] inet6_addr_add+0x4f8/0xa40 [ 2805.223211][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2805.223211][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2805.223211][ T253] netlink_rcv_skb+0x130/0x360 [ 2805.223211][ T253] netlink_unicast+0x449/0x710 [ 2805.223211][ T253] netlink_sendmsg+0x723/0xbe0 [ 2805.223211][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2805.223211][ T253] ___sys_sendmsg+0xee/0x170 [ 2805.223211][ T253] __sys_sendmsg+0xcd/0x170 [ 2805.223211][ T253] do_syscall_64+0xc6/0x1e0 [ 2805.223211][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2805.223211][ T253] [ 2805.225574][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2805.225574][ T253] netdev_get_by_index+0x5e/0x80 [ 2805.225574][ T253] fib6_nh_init+0x3d8/0x1580 [ 2805.225574][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2805.225574][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2805.225574][ T253] ipv6_add_addr+0x411/0x2000 [ 2805.225574][ T253] inet6_addr_add+0x30e/0xa40 [ 2805.225574][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2805.225574][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2805.225574][ T253] netlink_rcv_skb+0x130/0x360 [ 2805.225574][ T253] netlink_unicast+0x449/0x710 [ 2805.225574][ T253] netlink_sendmsg+0x723/0xbe0 [ 2805.225574][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2805.225574][ T253] ___sys_sendmsg+0xee/0x170 [ 2805.225574][ T253] __sys_sendmsg+0xcd/0x170 [ 2805.225574][ T253] do_syscall_64+0xc6/0x1e0 [ 2805.225574][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2805.225574][ T253] [ 2805.227854][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2805.227854][ T253] netdev_get_by_index+0x5e/0x80 [ 2805.227854][ T253] fib6_nh_init+0x3d8/0x1580 [ 2805.227854][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2805.227854][ T253] ip6_route_add+0x1c/0x140 [ 2805.227854][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2805.227854][ T253] addrconf_add_dev+0xe2/0x170 [ 2805.227854][ T253] inet6_addr_add+0x12f/0xa40 [ 2805.227854][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2805.227854][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2805.227854][ T253] netlink_rcv_skb+0x130/0x360 [ 2805.227854][ T253] netlink_unicast+0x449/0x710 [ 2805.227854][ T253] netlink_sendmsg+0x723/0xbe0 [ 2805.227854][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2805.227854][ T253] ___sys_sendmsg+0xee/0x170 [ 2805.227854][ T253] __sys_sendmsg+0xcd/0x170 [ 2805.227854][ T253] do_syscall_64+0xc6/0x1e0 [ 2805.227854][ T253] [ 2805.230075][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2805.230075][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2805.230075][ T253] ipv6_find_idev+0x102/0x170 [ 2805.230075][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2805.230075][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2805.230075][ T253] netlink_rcv_skb+0x130/0x360 [ 2805.230075][ T253] netlink_unicast+0x449/0x710 [ 2805.230075][ T253] netlink_sendmsg+0x723/0xbe0 [ 2805.230075][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2805.230075][ T253] ___sys_sendmsg+0xee/0x170 [ 2805.230075][ T253] __sys_sendmsg+0xcd/0x170 [ 2805.230075][ T253] do_syscall_64+0xc6/0x1e0 [ 2805.230075][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2805.230075][ T253] [ 2805.231818][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2805.231818][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2805.231818][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2805.231818][ T253] ipv6_find_idev+0x102/0x170 [ 2805.231818][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2805.231818][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2805.231818][ T253] netlink_rcv_skb+0x130/0x360 [ 2805.231818][ T253] netlink_unicast+0x449/0x710 [ 2805.231818][ T253] netlink_sendmsg+0x723/0xbe0 [ 2805.231818][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2805.231818][ T253] ___sys_sendmsg+0xee/0x170 [ 2805.231818][ T253] __sys_sendmsg+0xcd/0x170 [ 2805.231818][ T253] do_syscall_64+0xc6/0x1e0 [ 2805.231818][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2805.231818][ T253] [ 2815.410314][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2815.410728][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2815.410728][ T253] dst_init+0x84/0x4a0 [ 2815.410728][ T253] dst_alloc+0x97/0x150 [ 2815.410728][ T253] ip6_dst_alloc+0x23/0x90 [ 2815.410728][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2815.410728][ T253] ip6_pol_route+0x56f/0x840 [ 2815.410728][ T253] fib6_rule_lookup+0x334/0x630 [ 2815.410728][ T253] ip6_route_output_flags+0x259/0x480 [ 2815.410728][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2815.410728][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2815.410728][ T253] netlink_rcv_skb+0x130/0x360 [ 2815.410728][ T253] netlink_unicast+0x449/0x710 [ 2815.410728][ T253] netlink_sendmsg+0x723/0xbe0 [ 2815.410728][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2815.410728][ T253] ___sys_sendmsg+0xee/0x170 [ 2815.410728][ T253] __sys_sendmsg+0xcd/0x170 [ 2815.410728][ T253] do_syscall_64+0xc6/0x1e0 [ 2815.410728][ T253] [ 2815.412927][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2815.412927][ T253] netdev_get_by_index+0x5e/0x80 [ 2815.412927][ T253] fib6_nh_init+0x3d8/0x1580 [ 2815.412927][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2815.412927][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2815.412927][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2815.412927][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2815.412927][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2815.412927][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2815.412927][ T253] addrconf_dad_begin+0x310/0x670 [ 2815.412927][ T253] addrconf_dad_work+0x10b/0xab0 [ 2815.412927][ T253] process_one_work+0x84d/0x18a0 [ 2815.412927][ T253] worker_thread+0x587/0xd30 [ 2815.412927][ T253] kthread+0x28a/0x350 [ 2815.412927][ T253] ret_from_fork+0x31/0x70 [ 2815.412927][ T253] ret_from_fork_asm+0x1a/0x30 [ 2815.412927][ T253] [ 2815.415074][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2815.415074][ T253] netdev_get_by_index+0x5e/0x80 [ 2815.415074][ T253] fib6_nh_init+0x3d8/0x1580 [ 2815.415074][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2815.415074][ T253] ip6_route_add+0x1c/0x140 [ 2815.415074][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2815.415074][ T253] inet6_addr_add+0x4f8/0xa40 [ 2815.415074][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2815.415074][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2815.415074][ T253] netlink_rcv_skb+0x130/0x360 [ 2815.415074][ T253] netlink_unicast+0x449/0x710 [ 2815.415074][ T253] netlink_sendmsg+0x723/0xbe0 [ 2815.415074][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2815.415074][ T253] ___sys_sendmsg+0xee/0x170 [ 2815.415074][ T253] __sys_sendmsg+0xcd/0x170 [ 2815.415074][ T253] do_syscall_64+0xc6/0x1e0 [ 2815.415074][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2815.415074][ T253] [ 2815.417342][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2815.417342][ T253] netdev_get_by_index+0x5e/0x80 [ 2815.417342][ T253] fib6_nh_init+0x3d8/0x1580 [ 2815.417342][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2815.417342][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2815.417342][ T253] ipv6_add_addr+0x411/0x2000 [ 2815.417342][ T253] inet6_addr_add+0x30e/0xa40 [ 2815.417342][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2815.417342][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2815.417342][ T253] netlink_rcv_skb+0x130/0x360 [ 2815.417342][ T253] netlink_unicast+0x449/0x710 [ 2815.417342][ T253] netlink_sendmsg+0x723/0xbe0 [ 2815.417342][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2815.417342][ T253] ___sys_sendmsg+0xee/0x170 [ 2815.417342][ T253] __sys_sendmsg+0xcd/0x170 [ 2815.417342][ T253] do_syscall_64+0xc6/0x1e0 [ 2815.417342][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2815.417342][ T253] [ 2815.419625][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2815.419625][ T253] netdev_get_by_index+0x5e/0x80 [ 2815.419625][ T253] fib6_nh_init+0x3d8/0x1580 [ 2815.419625][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2815.419625][ T253] ip6_route_add+0x1c/0x140 [ 2815.419625][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2815.419625][ T253] addrconf_add_dev+0xe2/0x170 [ 2815.419625][ T253] inet6_addr_add+0x12f/0xa40 [ 2815.419625][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2815.419625][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2815.419625][ T253] netlink_rcv_skb+0x130/0x360 [ 2815.419625][ T253] netlink_unicast+0x449/0x710 [ 2815.419625][ T253] netlink_sendmsg+0x723/0xbe0 [ 2815.419625][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2815.419625][ T253] ___sys_sendmsg+0xee/0x170 [ 2815.419625][ T253] __sys_sendmsg+0xcd/0x170 [ 2815.419625][ T253] do_syscall_64+0xc6/0x1e0 [ 2815.419625][ T253] [ 2815.421840][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2815.421840][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2815.421840][ T253] ipv6_find_idev+0x102/0x170 [ 2815.421840][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2815.421840][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2815.421840][ T253] netlink_rcv_skb+0x130/0x360 [ 2815.421840][ T253] netlink_unicast+0x449/0x710 [ 2815.421840][ T253] netlink_sendmsg+0x723/0xbe0 [ 2815.421840][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2815.421840][ T253] ___sys_sendmsg+0xee/0x170 [ 2815.421840][ T253] __sys_sendmsg+0xcd/0x170 [ 2815.421840][ T253] do_syscall_64+0xc6/0x1e0 [ 2815.421840][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2815.421840][ T253] [ 2815.423567][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2815.423567][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2815.423567][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2815.423567][ T253] ipv6_find_idev+0x102/0x170 [ 2815.423567][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2815.423567][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2815.423567][ T253] netlink_rcv_skb+0x130/0x360 [ 2815.423567][ T253] netlink_unicast+0x449/0x710 [ 2815.423567][ T253] netlink_sendmsg+0x723/0xbe0 [ 2815.423567][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2815.423567][ T253] ___sys_sendmsg+0xee/0x170 [ 2815.423567][ T253] __sys_sendmsg+0xcd/0x170 [ 2815.423567][ T253] do_syscall_64+0xc6/0x1e0 [ 2815.423567][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2815.423567][ T253] [ 2825.674297][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2825.674775][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2825.674775][ T253] dst_init+0x84/0x4a0 [ 2825.674775][ T253] dst_alloc+0x97/0x150 [ 2825.674775][ T253] ip6_dst_alloc+0x23/0x90 [ 2825.674775][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2825.674775][ T253] ip6_pol_route+0x56f/0x840 [ 2825.674775][ T253] fib6_rule_lookup+0x334/0x630 [ 2825.674775][ T253] ip6_route_output_flags+0x259/0x480 [ 2825.674775][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2825.674775][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2825.674775][ T253] netlink_rcv_skb+0x130/0x360 [ 2825.674775][ T253] netlink_unicast+0x449/0x710 [ 2825.674775][ T253] netlink_sendmsg+0x723/0xbe0 [ 2825.674775][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2825.674775][ T253] ___sys_sendmsg+0xee/0x170 [ 2825.674775][ T253] __sys_sendmsg+0xcd/0x170 [ 2825.674775][ T253] do_syscall_64+0xc6/0x1e0 [ 2825.674775][ T253] [ 2825.676989][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2825.676989][ T253] netdev_get_by_index+0x5e/0x80 [ 2825.676989][ T253] fib6_nh_init+0x3d8/0x1580 [ 2825.676989][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2825.676989][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2825.676989][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2825.676989][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2825.676989][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2825.676989][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2825.676989][ T253] addrconf_dad_begin+0x310/0x670 [ 2825.676989][ T253] addrconf_dad_work+0x10b/0xab0 [ 2825.676989][ T253] process_one_work+0x84d/0x18a0 [ 2825.676989][ T253] worker_thread+0x587/0xd30 [ 2825.676989][ T253] kthread+0x28a/0x350 [ 2825.676989][ T253] ret_from_fork+0x31/0x70 [ 2825.676989][ T253] ret_from_fork_asm+0x1a/0x30 [ 2825.676989][ T253] [ 2825.679129][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2825.679129][ T253] netdev_get_by_index+0x5e/0x80 [ 2825.679129][ T253] fib6_nh_init+0x3d8/0x1580 [ 2825.679129][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2825.679129][ T253] ip6_route_add+0x1c/0x140 [ 2825.679129][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2825.679129][ T253] inet6_addr_add+0x4f8/0xa40 [ 2825.679129][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2825.679129][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2825.679129][ T253] netlink_rcv_skb+0x130/0x360 [ 2825.679129][ T253] netlink_unicast+0x449/0x710 [ 2825.679129][ T253] netlink_sendmsg+0x723/0xbe0 [ 2825.679129][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2825.679129][ T253] ___sys_sendmsg+0xee/0x170 [ 2825.679129][ T253] __sys_sendmsg+0xcd/0x170 [ 2825.679129][ T253] do_syscall_64+0xc6/0x1e0 [ 2825.679129][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2825.679129][ T253] [ 2825.681368][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2825.681368][ T253] netdev_get_by_index+0x5e/0x80 [ 2825.681368][ T253] fib6_nh_init+0x3d8/0x1580 [ 2825.681368][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2825.681368][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2825.681368][ T253] ipv6_add_addr+0x411/0x2000 [ 2825.681368][ T253] inet6_addr_add+0x30e/0xa40 [ 2825.681368][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2825.681368][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2825.681368][ T253] netlink_rcv_skb+0x130/0x360 [ 2825.681368][ T253] netlink_unicast+0x449/0x710 [ 2825.681368][ T253] netlink_sendmsg+0x723/0xbe0 [ 2825.681368][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2825.681368][ T253] ___sys_sendmsg+0xee/0x170 [ 2825.681368][ T253] __sys_sendmsg+0xcd/0x170 [ 2825.681368][ T253] do_syscall_64+0xc6/0x1e0 [ 2825.681368][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2825.681368][ T253] [ 2825.683611][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2825.683611][ T253] netdev_get_by_index+0x5e/0x80 [ 2825.683611][ T253] fib6_nh_init+0x3d8/0x1580 [ 2825.683611][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2825.683611][ T253] ip6_route_add+0x1c/0x140 [ 2825.683611][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2825.683611][ T253] addrconf_add_dev+0xe2/0x170 [ 2825.683611][ T253] inet6_addr_add+0x12f/0xa40 [ 2825.683611][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2825.683611][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2825.683611][ T253] netlink_rcv_skb+0x130/0x360 [ 2825.683611][ T253] netlink_unicast+0x449/0x710 [ 2825.683611][ T253] netlink_sendmsg+0x723/0xbe0 [ 2825.683611][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2825.683611][ T253] ___sys_sendmsg+0xee/0x170 [ 2825.683611][ T253] __sys_sendmsg+0xcd/0x170 [ 2825.683611][ T253] do_syscall_64+0xc6/0x1e0 [ 2825.683611][ T253] [ 2825.685810][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2825.685810][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2825.685810][ T253] ipv6_find_idev+0x102/0x170 [ 2825.685810][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2825.685810][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2825.685810][ T253] netlink_rcv_skb+0x130/0x360 [ 2825.685810][ T253] netlink_unicast+0x449/0x710 [ 2825.685810][ T253] netlink_sendmsg+0x723/0xbe0 [ 2825.685810][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2825.685810][ T253] ___sys_sendmsg+0xee/0x170 [ 2825.685810][ T253] __sys_sendmsg+0xcd/0x170 [ 2825.685810][ T253] do_syscall_64+0xc6/0x1e0 [ 2825.685810][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2825.685810][ T253] [ 2825.687545][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2825.687545][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2825.687545][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2825.687545][ T253] ipv6_find_idev+0x102/0x170 [ 2825.687545][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2825.687545][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2825.687545][ T253] netlink_rcv_skb+0x130/0x360 [ 2825.687545][ T253] netlink_unicast+0x449/0x710 [ 2825.687545][ T253] netlink_sendmsg+0x723/0xbe0 [ 2825.687545][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2825.687545][ T253] ___sys_sendmsg+0xee/0x170 [ 2825.687545][ T253] __sys_sendmsg+0xcd/0x170 [ 2825.687545][ T253] do_syscall_64+0xc6/0x1e0 [ 2825.687545][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2825.687545][ T253] [ 2835.938386][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2835.938897][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2835.938897][ T253] dst_init+0x84/0x4a0 [ 2835.938897][ T253] dst_alloc+0x97/0x150 [ 2835.938897][ T253] ip6_dst_alloc+0x23/0x90 [ 2835.938897][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2835.938897][ T253] ip6_pol_route+0x56f/0x840 [ 2835.938897][ T253] fib6_rule_lookup+0x334/0x630 [ 2835.938897][ T253] ip6_route_output_flags+0x259/0x480 [ 2835.938897][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2835.938897][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2835.938897][ T253] netlink_rcv_skb+0x130/0x360 [ 2835.938897][ T253] netlink_unicast+0x449/0x710 [ 2835.938897][ T253] netlink_sendmsg+0x723/0xbe0 [ 2835.938897][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2835.938897][ T253] ___sys_sendmsg+0xee/0x170 [ 2835.938897][ T253] __sys_sendmsg+0xcd/0x170 [ 2835.938897][ T253] do_syscall_64+0xc6/0x1e0 [ 2835.938897][ T253] [ 2835.941093][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2835.941093][ T253] netdev_get_by_index+0x5e/0x80 [ 2835.941093][ T253] fib6_nh_init+0x3d8/0x1580 [ 2835.941093][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2835.941093][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2835.941093][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2835.941093][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2835.941093][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2835.941093][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2835.941093][ T253] addrconf_dad_begin+0x310/0x670 [ 2835.941093][ T253] addrconf_dad_work+0x10b/0xab0 [ 2835.941093][ T253] process_one_work+0x84d/0x18a0 [ 2835.941093][ T253] worker_thread+0x587/0xd30 [ 2835.941093][ T253] kthread+0x28a/0x350 [ 2835.941093][ T253] ret_from_fork+0x31/0x70 [ 2835.941093][ T253] ret_from_fork_asm+0x1a/0x30 [ 2835.941093][ T253] [ 2835.943260][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2835.943260][ T253] netdev_get_by_index+0x5e/0x80 [ 2835.943260][ T253] fib6_nh_init+0x3d8/0x1580 [ 2835.943260][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2835.943260][ T253] ip6_route_add+0x1c/0x140 [ 2835.943260][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2835.943260][ T253] inet6_addr_add+0x4f8/0xa40 [ 2835.943260][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2835.943260][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2835.943260][ T253] netlink_rcv_skb+0x130/0x360 [ 2835.943260][ T253] netlink_unicast+0x449/0x710 [ 2835.943260][ T253] netlink_sendmsg+0x723/0xbe0 [ 2835.943260][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2835.943260][ T253] ___sys_sendmsg+0xee/0x170 [ 2835.943260][ T253] __sys_sendmsg+0xcd/0x170 [ 2835.943260][ T253] do_syscall_64+0xc6/0x1e0 [ 2835.943260][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2835.943260][ T253] [ 2835.945510][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2835.945510][ T253] netdev_get_by_index+0x5e/0x80 [ 2835.945510][ T253] fib6_nh_init+0x3d8/0x1580 [ 2835.945510][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2835.945510][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2835.945510][ T253] ipv6_add_addr+0x411/0x2000 [ 2835.945510][ T253] inet6_addr_add+0x30e/0xa40 [ 2835.945510][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2835.945510][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2835.945510][ T253] netlink_rcv_skb+0x130/0x360 [ 2835.945510][ T253] netlink_unicast+0x449/0x710 [ 2835.945510][ T253] netlink_sendmsg+0x723/0xbe0 [ 2835.945510][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2835.945510][ T253] ___sys_sendmsg+0xee/0x170 [ 2835.945510][ T253] __sys_sendmsg+0xcd/0x170 [ 2835.945510][ T253] do_syscall_64+0xc6/0x1e0 [ 2835.945510][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2835.945510][ T253] [ 2835.947771][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2835.947771][ T253] netdev_get_by_index+0x5e/0x80 [ 2835.947771][ T253] fib6_nh_init+0x3d8/0x1580 [ 2835.947771][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2835.947771][ T253] ip6_route_add+0x1c/0x140 [ 2835.947771][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2835.947771][ T253] addrconf_add_dev+0xe2/0x170 [ 2835.947771][ T253] inet6_addr_add+0x12f/0xa40 [ 2835.947771][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2835.947771][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2835.947771][ T253] netlink_rcv_skb+0x130/0x360 [ 2835.947771][ T253] netlink_unicast+0x449/0x710 [ 2835.947771][ T253] netlink_sendmsg+0x723/0xbe0 [ 2835.947771][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2835.947771][ T253] ___sys_sendmsg+0xee/0x170 [ 2835.947771][ T253] __sys_sendmsg+0xcd/0x170 [ 2835.947771][ T253] do_syscall_64+0xc6/0x1e0 [ 2835.947771][ T253] [ 2835.950503][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2835.950503][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2835.950503][ T253] ipv6_find_idev+0x102/0x170 [ 2835.950503][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2835.950503][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2835.950503][ T253] netlink_rcv_skb+0x130/0x360 [ 2835.950503][ T253] netlink_unicast+0x449/0x710 [ 2835.950503][ T253] netlink_sendmsg+0x723/0xbe0 [ 2835.950503][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2835.950503][ T253] ___sys_sendmsg+0xee/0x170 [ 2835.950503][ T253] __sys_sendmsg+0xcd/0x170 [ 2835.950503][ T253] do_syscall_64+0xc6/0x1e0 [ 2835.950503][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2835.950503][ T253] [ 2835.952234][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2835.952234][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2835.952234][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2835.952234][ T253] ipv6_find_idev+0x102/0x170 [ 2835.952234][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2835.952234][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2835.952234][ T253] netlink_rcv_skb+0x130/0x360 [ 2835.952234][ T253] netlink_unicast+0x449/0x710 [ 2835.952234][ T253] netlink_sendmsg+0x723/0xbe0 [ 2835.952234][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2835.952234][ T253] ___sys_sendmsg+0xee/0x170 [ 2835.952234][ T253] __sys_sendmsg+0xcd/0x170 [ 2835.952234][ T253] do_syscall_64+0xc6/0x1e0 [ 2835.952234][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2835.952234][ T253] [ 2846.202245][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2846.202711][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2846.202711][ T253] dst_init+0x84/0x4a0 [ 2846.202711][ T253] dst_alloc+0x97/0x150 [ 2846.202711][ T253] ip6_dst_alloc+0x23/0x90 [ 2846.202711][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2846.202711][ T253] ip6_pol_route+0x56f/0x840 [ 2846.202711][ T253] fib6_rule_lookup+0x334/0x630 [ 2846.202711][ T253] ip6_route_output_flags+0x259/0x480 [ 2846.202711][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2846.202711][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2846.202711][ T253] netlink_rcv_skb+0x130/0x360 [ 2846.202711][ T253] netlink_unicast+0x449/0x710 [ 2846.202711][ T253] netlink_sendmsg+0x723/0xbe0 [ 2846.202711][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2846.202711][ T253] ___sys_sendmsg+0xee/0x170 [ 2846.202711][ T253] __sys_sendmsg+0xcd/0x170 [ 2846.202711][ T253] do_syscall_64+0xc6/0x1e0 [ 2846.202711][ T253] [ 2846.204912][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2846.204912][ T253] netdev_get_by_index+0x5e/0x80 [ 2846.204912][ T253] fib6_nh_init+0x3d8/0x1580 [ 2846.204912][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2846.204912][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2846.204912][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2846.204912][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2846.204912][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2846.204912][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2846.204912][ T253] addrconf_dad_begin+0x310/0x670 [ 2846.204912][ T253] addrconf_dad_work+0x10b/0xab0 [ 2846.204912][ T253] process_one_work+0x84d/0x18a0 [ 2846.204912][ T253] worker_thread+0x587/0xd30 [ 2846.204912][ T253] kthread+0x28a/0x350 [ 2846.204912][ T253] ret_from_fork+0x31/0x70 [ 2846.204912][ T253] ret_from_fork_asm+0x1a/0x30 [ 2846.204912][ T253] [ 2846.207065][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2846.207065][ T253] netdev_get_by_index+0x5e/0x80 [ 2846.207065][ T253] fib6_nh_init+0x3d8/0x1580 [ 2846.207065][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2846.207065][ T253] ip6_route_add+0x1c/0x140 [ 2846.207065][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2846.207065][ T253] inet6_addr_add+0x4f8/0xa40 [ 2846.207065][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2846.207065][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2846.207065][ T253] netlink_rcv_skb+0x130/0x360 [ 2846.207065][ T253] netlink_unicast+0x449/0x710 [ 2846.207065][ T253] netlink_sendmsg+0x723/0xbe0 [ 2846.207065][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2846.207065][ T253] ___sys_sendmsg+0xee/0x170 [ 2846.207065][ T253] __sys_sendmsg+0xcd/0x170 [ 2846.207065][ T253] do_syscall_64+0xc6/0x1e0 [ 2846.207065][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2846.207065][ T253] [ 2846.209297][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2846.209297][ T253] netdev_get_by_index+0x5e/0x80 [ 2846.209297][ T253] fib6_nh_init+0x3d8/0x1580 [ 2846.209297][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2846.209297][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2846.209297][ T253] ipv6_add_addr+0x411/0x2000 [ 2846.209297][ T253] inet6_addr_add+0x30e/0xa40 [ 2846.209297][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2846.209297][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2846.209297][ T253] netlink_rcv_skb+0x130/0x360 [ 2846.209297][ T253] netlink_unicast+0x449/0x710 [ 2846.209297][ T253] netlink_sendmsg+0x723/0xbe0 [ 2846.209297][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2846.209297][ T253] ___sys_sendmsg+0xee/0x170 [ 2846.209297][ T253] __sys_sendmsg+0xcd/0x170 [ 2846.209297][ T253] do_syscall_64+0xc6/0x1e0 [ 2846.209297][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2846.209297][ T253] [ 2846.211528][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2846.211528][ T253] netdev_get_by_index+0x5e/0x80 [ 2846.211528][ T253] fib6_nh_init+0x3d8/0x1580 [ 2846.211528][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2846.211528][ T253] ip6_route_add+0x1c/0x140 [ 2846.211528][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2846.211528][ T253] addrconf_add_dev+0xe2/0x170 [ 2846.211528][ T253] inet6_addr_add+0x12f/0xa40 [ 2846.211528][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2846.211528][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2846.211528][ T253] netlink_rcv_skb+0x130/0x360 [ 2846.211528][ T253] netlink_unicast+0x449/0x710 [ 2846.211528][ T253] netlink_sendmsg+0x723/0xbe0 [ 2846.211528][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2846.211528][ T253] ___sys_sendmsg+0xee/0x170 [ 2846.211528][ T253] __sys_sendmsg+0xcd/0x170 [ 2846.211528][ T253] do_syscall_64+0xc6/0x1e0 [ 2846.211528][ T253] [ 2846.213747][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2846.213747][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2846.213747][ T253] ipv6_find_idev+0x102/0x170 [ 2846.213747][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2846.213747][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2846.213747][ T253] netlink_rcv_skb+0x130/0x360 [ 2846.213747][ T253] netlink_unicast+0x449/0x710 [ 2846.213747][ T253] netlink_sendmsg+0x723/0xbe0 [ 2846.213747][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2846.213747][ T253] ___sys_sendmsg+0xee/0x170 [ 2846.213747][ T253] __sys_sendmsg+0xcd/0x170 [ 2846.213747][ T253] do_syscall_64+0xc6/0x1e0 [ 2846.213747][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2846.213747][ T253] [ 2846.215465][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2846.215465][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2846.215465][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2846.215465][ T253] ipv6_find_idev+0x102/0x170 [ 2846.215465][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2846.215465][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2846.215465][ T253] netlink_rcv_skb+0x130/0x360 [ 2846.215465][ T253] netlink_unicast+0x449/0x710 [ 2846.215465][ T253] netlink_sendmsg+0x723/0xbe0 [ 2846.215465][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2846.215465][ T253] ___sys_sendmsg+0xee/0x170 [ 2846.215465][ T253] __sys_sendmsg+0xcd/0x170 [ 2846.215465][ T253] do_syscall_64+0xc6/0x1e0 [ 2846.215465][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2846.215465][ T253] [ 2856.466298][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2856.466775][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2856.466775][ T253] dst_init+0x84/0x4a0 [ 2856.466775][ T253] dst_alloc+0x97/0x150 [ 2856.466775][ T253] ip6_dst_alloc+0x23/0x90 [ 2856.466775][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2856.466775][ T253] ip6_pol_route+0x56f/0x840 [ 2856.466775][ T253] fib6_rule_lookup+0x334/0x630 [ 2856.466775][ T253] ip6_route_output_flags+0x259/0x480 [ 2856.466775][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2856.466775][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2856.466775][ T253] netlink_rcv_skb+0x130/0x360 [ 2856.466775][ T253] netlink_unicast+0x449/0x710 [ 2856.466775][ T253] netlink_sendmsg+0x723/0xbe0 [ 2856.466775][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2856.466775][ T253] ___sys_sendmsg+0xee/0x170 [ 2856.466775][ T253] __sys_sendmsg+0xcd/0x170 [ 2856.466775][ T253] do_syscall_64+0xc6/0x1e0 [ 2856.466775][ T253] [ 2856.468966][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2856.468966][ T253] netdev_get_by_index+0x5e/0x80 [ 2856.468966][ T253] fib6_nh_init+0x3d8/0x1580 [ 2856.468966][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2856.468966][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2856.468966][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2856.468966][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2856.468966][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2856.468966][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2856.468966][ T253] addrconf_dad_begin+0x310/0x670 [ 2856.468966][ T253] addrconf_dad_work+0x10b/0xab0 [ 2856.468966][ T253] process_one_work+0x84d/0x18a0 [ 2856.468966][ T253] worker_thread+0x587/0xd30 [ 2856.468966][ T253] kthread+0x28a/0x350 [ 2856.468966][ T253] ret_from_fork+0x31/0x70 [ 2856.468966][ T253] ret_from_fork_asm+0x1a/0x30 [ 2856.468966][ T253] [ 2856.471522][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2856.471522][ T253] netdev_get_by_index+0x5e/0x80 [ 2856.471522][ T253] fib6_nh_init+0x3d8/0x1580 [ 2856.471522][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2856.471522][ T253] ip6_route_add+0x1c/0x140 [ 2856.471522][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2856.471522][ T253] inet6_addr_add+0x4f8/0xa40 [ 2856.471522][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2856.471522][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2856.471522][ T253] netlink_rcv_skb+0x130/0x360 [ 2856.471522][ T253] netlink_unicast+0x449/0x710 [ 2856.471522][ T253] netlink_sendmsg+0x723/0xbe0 [ 2856.471522][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2856.471522][ T253] ___sys_sendmsg+0xee/0x170 [ 2856.471522][ T253] __sys_sendmsg+0xcd/0x170 [ 2856.471522][ T253] do_syscall_64+0xc6/0x1e0 [ 2856.471522][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2856.471522][ T253] [ 2856.473760][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2856.473760][ T253] netdev_get_by_index+0x5e/0x80 [ 2856.473760][ T253] fib6_nh_init+0x3d8/0x1580 [ 2856.473760][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2856.473760][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2856.473760][ T253] ipv6_add_addr+0x411/0x2000 [ 2856.473760][ T253] inet6_addr_add+0x30e/0xa40 [ 2856.473760][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2856.473760][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2856.473760][ T253] netlink_rcv_skb+0x130/0x360 [ 2856.473760][ T253] netlink_unicast+0x449/0x710 [ 2856.473760][ T253] netlink_sendmsg+0x723/0xbe0 [ 2856.473760][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2856.473760][ T253] ___sys_sendmsg+0xee/0x170 [ 2856.473760][ T253] __sys_sendmsg+0xcd/0x170 [ 2856.473760][ T253] do_syscall_64+0xc6/0x1e0 [ 2856.473760][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2856.473760][ T253] [ 2856.476006][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2856.476006][ T253] netdev_get_by_index+0x5e/0x80 [ 2856.476006][ T253] fib6_nh_init+0x3d8/0x1580 [ 2856.476006][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2856.476006][ T253] ip6_route_add+0x1c/0x140 [ 2856.476006][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2856.476006][ T253] addrconf_add_dev+0xe2/0x170 [ 2856.476006][ T253] inet6_addr_add+0x12f/0xa40 [ 2856.476006][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2856.476006][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2856.476006][ T253] netlink_rcv_skb+0x130/0x360 [ 2856.476006][ T253] netlink_unicast+0x449/0x710 [ 2856.476006][ T253] netlink_sendmsg+0x723/0xbe0 [ 2856.476006][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2856.476006][ T253] ___sys_sendmsg+0xee/0x170 [ 2856.476006][ T253] __sys_sendmsg+0xcd/0x170 [ 2856.476006][ T253] do_syscall_64+0xc6/0x1e0 [ 2856.476006][ T253] [ 2856.478198][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2856.478198][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2856.478198][ T253] ipv6_find_idev+0x102/0x170 [ 2856.478198][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2856.478198][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2856.478198][ T253] netlink_rcv_skb+0x130/0x360 [ 2856.478198][ T253] netlink_unicast+0x449/0x710 [ 2856.478198][ T253] netlink_sendmsg+0x723/0xbe0 [ 2856.478198][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2856.478198][ T253] ___sys_sendmsg+0xee/0x170 [ 2856.478198][ T253] __sys_sendmsg+0xcd/0x170 [ 2856.478198][ T253] do_syscall_64+0xc6/0x1e0 [ 2856.478198][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2856.478198][ T253] [ 2856.479927][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2856.479927][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2856.479927][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2856.479927][ T253] ipv6_find_idev+0x102/0x170 [ 2856.479927][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2856.479927][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2856.479927][ T253] netlink_rcv_skb+0x130/0x360 [ 2856.479927][ T253] netlink_unicast+0x449/0x710 [ 2856.479927][ T253] netlink_sendmsg+0x723/0xbe0 [ 2856.479927][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2856.479927][ T253] ___sys_sendmsg+0xee/0x170 [ 2856.479927][ T253] __sys_sendmsg+0xcd/0x170 [ 2856.479927][ T253] do_syscall_64+0xc6/0x1e0 [ 2856.479927][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2856.479927][ T253] [ 2866.578333][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2866.578806][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2866.578806][ T253] dst_init+0x84/0x4a0 [ 2866.578806][ T253] dst_alloc+0x97/0x150 [ 2866.578806][ T253] ip6_dst_alloc+0x23/0x90 [ 2866.578806][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2866.578806][ T253] ip6_pol_route+0x56f/0x840 [ 2866.578806][ T253] fib6_rule_lookup+0x334/0x630 [ 2866.578806][ T253] ip6_route_output_flags+0x259/0x480 [ 2866.578806][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2866.578806][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2866.578806][ T253] netlink_rcv_skb+0x130/0x360 [ 2866.578806][ T253] netlink_unicast+0x449/0x710 [ 2866.578806][ T253] netlink_sendmsg+0x723/0xbe0 [ 2866.578806][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2866.578806][ T253] ___sys_sendmsg+0xee/0x170 [ 2866.578806][ T253] __sys_sendmsg+0xcd/0x170 [ 2866.578806][ T253] do_syscall_64+0xc6/0x1e0 [ 2866.578806][ T253] [ 2866.581003][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2866.581003][ T253] netdev_get_by_index+0x5e/0x80 [ 2866.581003][ T253] fib6_nh_init+0x3d8/0x1580 [ 2866.581003][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2866.581003][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2866.581003][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2866.581003][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2866.581003][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2866.581003][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2866.581003][ T253] addrconf_dad_begin+0x310/0x670 [ 2866.581003][ T253] addrconf_dad_work+0x10b/0xab0 [ 2866.581003][ T253] process_one_work+0x84d/0x18a0 [ 2866.581003][ T253] worker_thread+0x587/0xd30 [ 2866.581003][ T253] kthread+0x28a/0x350 [ 2866.581003][ T253] ret_from_fork+0x31/0x70 [ 2866.581003][ T253] ret_from_fork_asm+0x1a/0x30 [ 2866.581003][ T253] [ 2866.583148][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2866.583148][ T253] netdev_get_by_index+0x5e/0x80 [ 2866.583148][ T253] fib6_nh_init+0x3d8/0x1580 [ 2866.583148][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2866.583148][ T253] ip6_route_add+0x1c/0x140 [ 2866.583148][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2866.583148][ T253] inet6_addr_add+0x4f8/0xa40 [ 2866.583148][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2866.583148][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2866.583148][ T253] netlink_rcv_skb+0x130/0x360 [ 2866.583148][ T253] netlink_unicast+0x449/0x710 [ 2866.583148][ T253] netlink_sendmsg+0x723/0xbe0 [ 2866.583148][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2866.583148][ T253] ___sys_sendmsg+0xee/0x170 [ 2866.583148][ T253] __sys_sendmsg+0xcd/0x170 [ 2866.583148][ T253] do_syscall_64+0xc6/0x1e0 [ 2866.583148][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2866.583148][ T253] [ 2866.585437][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2866.585437][ T253] netdev_get_by_index+0x5e/0x80 [ 2866.585437][ T253] fib6_nh_init+0x3d8/0x1580 [ 2866.585437][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2866.585437][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2866.585437][ T253] ipv6_add_addr+0x411/0x2000 [ 2866.585437][ T253] inet6_addr_add+0x30e/0xa40 [ 2866.585437][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2866.585437][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2866.585437][ T253] netlink_rcv_skb+0x130/0x360 [ 2866.585437][ T253] netlink_unicast+0x449/0x710 [ 2866.585437][ T253] netlink_sendmsg+0x723/0xbe0 [ 2866.585437][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2866.585437][ T253] ___sys_sendmsg+0xee/0x170 [ 2866.585437][ T253] __sys_sendmsg+0xcd/0x170 [ 2866.585437][ T253] do_syscall_64+0xc6/0x1e0 [ 2866.585437][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2866.585437][ T253] [ 2866.587692][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2866.587692][ T253] netdev_get_by_index+0x5e/0x80 [ 2866.587692][ T253] fib6_nh_init+0x3d8/0x1580 [ 2866.587692][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2866.587692][ T253] ip6_route_add+0x1c/0x140 [ 2866.587692][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2866.587692][ T253] addrconf_add_dev+0xe2/0x170 [ 2866.587692][ T253] inet6_addr_add+0x12f/0xa40 [ 2866.587692][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2866.587692][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2866.587692][ T253] netlink_rcv_skb+0x130/0x360 [ 2866.587692][ T253] netlink_unicast+0x449/0x710 [ 2866.587692][ T253] netlink_sendmsg+0x723/0xbe0 [ 2866.587692][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2866.587692][ T253] ___sys_sendmsg+0xee/0x170 [ 2866.587692][ T253] __sys_sendmsg+0xcd/0x170 [ 2866.587692][ T253] do_syscall_64+0xc6/0x1e0 [ 2866.587692][ T253] [ 2866.589889][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2866.589889][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2866.589889][ T253] ipv6_find_idev+0x102/0x170 [ 2866.589889][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2866.589889][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2866.589889][ T253] netlink_rcv_skb+0x130/0x360 [ 2866.589889][ T253] netlink_unicast+0x449/0x710 [ 2866.589889][ T253] netlink_sendmsg+0x723/0xbe0 [ 2866.589889][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2866.589889][ T253] ___sys_sendmsg+0xee/0x170 [ 2866.589889][ T253] __sys_sendmsg+0xcd/0x170 [ 2866.589889][ T253] do_syscall_64+0xc6/0x1e0 [ 2866.589889][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2866.589889][ T253] [ 2866.591622][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2866.591622][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2866.591622][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2866.591622][ T253] ipv6_find_idev+0x102/0x170 [ 2866.591622][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2866.591622][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2866.591622][ T253] netlink_rcv_skb+0x130/0x360 [ 2866.591622][ T253] netlink_unicast+0x449/0x710 [ 2866.591622][ T253] netlink_sendmsg+0x723/0xbe0 [ 2866.591622][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2866.591622][ T253] ___sys_sendmsg+0xee/0x170 [ 2866.591622][ T253] __sys_sendmsg+0xcd/0x170 [ 2866.591622][ T253] do_syscall_64+0xc6/0x1e0 [ 2866.591622][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2866.591622][ T253] [ 2876.834315][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2876.834779][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2876.834779][ T253] dst_init+0x84/0x4a0 [ 2876.834779][ T253] dst_alloc+0x97/0x150 [ 2876.834779][ T253] ip6_dst_alloc+0x23/0x90 [ 2876.834779][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2876.834779][ T253] ip6_pol_route+0x56f/0x840 [ 2876.834779][ T253] fib6_rule_lookup+0x334/0x630 [ 2876.834779][ T253] ip6_route_output_flags+0x259/0x480 [ 2876.834779][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2876.834779][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2876.834779][ T253] netlink_rcv_skb+0x130/0x360 [ 2876.834779][ T253] netlink_unicast+0x449/0x710 [ 2876.834779][ T253] netlink_sendmsg+0x723/0xbe0 [ 2876.834779][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2876.834779][ T253] ___sys_sendmsg+0xee/0x170 [ 2876.834779][ T253] __sys_sendmsg+0xcd/0x170 [ 2876.834779][ T253] do_syscall_64+0xc6/0x1e0 [ 2876.834779][ T253] [ 2876.836994][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2876.836994][ T253] netdev_get_by_index+0x5e/0x80 [ 2876.836994][ T253] fib6_nh_init+0x3d8/0x1580 [ 2876.836994][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2876.836994][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2876.836994][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2876.836994][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2876.836994][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2876.836994][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2876.836994][ T253] addrconf_dad_begin+0x310/0x670 [ 2876.836994][ T253] addrconf_dad_work+0x10b/0xab0 [ 2876.836994][ T253] process_one_work+0x84d/0x18a0 [ 2876.836994][ T253] worker_thread+0x587/0xd30 [ 2876.836994][ T253] kthread+0x28a/0x350 [ 2876.836994][ T253] ret_from_fork+0x31/0x70 [ 2876.836994][ T253] ret_from_fork_asm+0x1a/0x30 [ 2876.836994][ T253] [ 2876.839137][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2876.839137][ T253] netdev_get_by_index+0x5e/0x80 [ 2876.839137][ T253] fib6_nh_init+0x3d8/0x1580 [ 2876.839137][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2876.839137][ T253] ip6_route_add+0x1c/0x140 [ 2876.839137][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2876.839137][ T253] inet6_addr_add+0x4f8/0xa40 [ 2876.839137][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2876.839137][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2876.839137][ T253] netlink_rcv_skb+0x130/0x360 [ 2876.839137][ T253] netlink_unicast+0x449/0x710 [ 2876.839137][ T253] netlink_sendmsg+0x723/0xbe0 [ 2876.839137][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2876.839137][ T253] ___sys_sendmsg+0xee/0x170 [ 2876.839137][ T253] __sys_sendmsg+0xcd/0x170 [ 2876.839137][ T253] do_syscall_64+0xc6/0x1e0 [ 2876.839137][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2876.839137][ T253] [ 2876.841379][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2876.841379][ T253] netdev_get_by_index+0x5e/0x80 [ 2876.841379][ T253] fib6_nh_init+0x3d8/0x1580 [ 2876.841379][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2876.841379][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2876.841379][ T253] ipv6_add_addr+0x411/0x2000 [ 2876.841379][ T253] inet6_addr_add+0x30e/0xa40 [ 2876.841379][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2876.841379][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2876.841379][ T253] netlink_rcv_skb+0x130/0x360 [ 2876.841379][ T253] netlink_unicast+0x449/0x710 [ 2876.841379][ T253] netlink_sendmsg+0x723/0xbe0 [ 2876.841379][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2876.841379][ T253] ___sys_sendmsg+0xee/0x170 [ 2876.841379][ T253] __sys_sendmsg+0xcd/0x170 [ 2876.841379][ T253] do_syscall_64+0xc6/0x1e0 [ 2876.841379][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2876.841379][ T253] [ 2876.843612][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2876.843612][ T253] netdev_get_by_index+0x5e/0x80 [ 2876.843612][ T253] fib6_nh_init+0x3d8/0x1580 [ 2876.843612][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2876.843612][ T253] ip6_route_add+0x1c/0x140 [ 2876.843612][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2876.843612][ T253] addrconf_add_dev+0xe2/0x170 [ 2876.843612][ T253] inet6_addr_add+0x12f/0xa40 [ 2876.843612][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2876.843612][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2876.843612][ T253] netlink_rcv_skb+0x130/0x360 [ 2876.843612][ T253] netlink_unicast+0x449/0x710 [ 2876.843612][ T253] netlink_sendmsg+0x723/0xbe0 [ 2876.843612][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2876.843612][ T253] ___sys_sendmsg+0xee/0x170 [ 2876.843612][ T253] __sys_sendmsg+0xcd/0x170 [ 2876.843612][ T253] do_syscall_64+0xc6/0x1e0 [ 2876.843612][ T253] [ 2876.845825][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2876.845825][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2876.845825][ T253] ipv6_find_idev+0x102/0x170 [ 2876.845825][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2876.845825][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2876.845825][ T253] netlink_rcv_skb+0x130/0x360 [ 2876.845825][ T253] netlink_unicast+0x449/0x710 [ 2876.845825][ T253] netlink_sendmsg+0x723/0xbe0 [ 2876.845825][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2876.845825][ T253] ___sys_sendmsg+0xee/0x170 [ 2876.845825][ T253] __sys_sendmsg+0xcd/0x170 [ 2876.845825][ T253] do_syscall_64+0xc6/0x1e0 [ 2876.845825][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2876.845825][ T253] [ 2876.847550][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2876.847550][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2876.847550][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2876.847550][ T253] ipv6_find_idev+0x102/0x170 [ 2876.847550][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2876.847550][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2876.847550][ T253] netlink_rcv_skb+0x130/0x360 [ 2876.847550][ T253] netlink_unicast+0x449/0x710 [ 2876.847550][ T253] netlink_sendmsg+0x723/0xbe0 [ 2876.847550][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2876.847550][ T253] ___sys_sendmsg+0xee/0x170 [ 2876.847550][ T253] __sys_sendmsg+0xcd/0x170 [ 2876.847550][ T253] do_syscall_64+0xc6/0x1e0 [ 2876.847550][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2876.847550][ T253] [ 2887.090298][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2887.090710][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2887.090710][ T253] dst_init+0x84/0x4a0 [ 2887.090710][ T253] dst_alloc+0x97/0x150 [ 2887.090710][ T253] ip6_dst_alloc+0x23/0x90 [ 2887.090710][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2887.090710][ T253] ip6_pol_route+0x56f/0x840 [ 2887.090710][ T253] fib6_rule_lookup+0x334/0x630 [ 2887.090710][ T253] ip6_route_output_flags+0x259/0x480 [ 2887.090710][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2887.090710][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2887.090710][ T253] netlink_rcv_skb+0x130/0x360 [ 2887.090710][ T253] netlink_unicast+0x449/0x710 [ 2887.090710][ T253] netlink_sendmsg+0x723/0xbe0 [ 2887.090710][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2887.090710][ T253] ___sys_sendmsg+0xee/0x170 [ 2887.090710][ T253] __sys_sendmsg+0xcd/0x170 [ 2887.090710][ T253] do_syscall_64+0xc6/0x1e0 [ 2887.090710][ T253] [ 2887.093025][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2887.093025][ T253] netdev_get_by_index+0x5e/0x80 [ 2887.093025][ T253] fib6_nh_init+0x3d8/0x1580 [ 2887.093025][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2887.093025][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2887.093025][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2887.093025][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2887.093025][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2887.093025][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2887.093025][ T253] addrconf_dad_begin+0x310/0x670 [ 2887.093025][ T253] addrconf_dad_work+0x10b/0xab0 [ 2887.093025][ T253] process_one_work+0x84d/0x18a0 [ 2887.093025][ T253] worker_thread+0x587/0xd30 [ 2887.093025][ T253] kthread+0x28a/0x350 [ 2887.093025][ T253] ret_from_fork+0x31/0x70 [ 2887.093025][ T253] ret_from_fork_asm+0x1a/0x30 [ 2887.093025][ T253] [ 2887.095168][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2887.095168][ T253] netdev_get_by_index+0x5e/0x80 [ 2887.095168][ T253] fib6_nh_init+0x3d8/0x1580 [ 2887.095168][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2887.095168][ T253] ip6_route_add+0x1c/0x140 [ 2887.095168][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2887.095168][ T253] inet6_addr_add+0x4f8/0xa40 [ 2887.095168][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2887.095168][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2887.095168][ T253] netlink_rcv_skb+0x130/0x360 [ 2887.095168][ T253] netlink_unicast+0x449/0x710 [ 2887.095168][ T253] netlink_sendmsg+0x723/0xbe0 [ 2887.095168][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2887.095168][ T253] ___sys_sendmsg+0xee/0x170 [ 2887.095168][ T253] __sys_sendmsg+0xcd/0x170 [ 2887.095168][ T253] do_syscall_64+0xc6/0x1e0 [ 2887.095168][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2887.095168][ T253] [ 2887.097417][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2887.097417][ T253] netdev_get_by_index+0x5e/0x80 [ 2887.097417][ T253] fib6_nh_init+0x3d8/0x1580 [ 2887.097417][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2887.097417][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2887.097417][ T253] ipv6_add_addr+0x411/0x2000 [ 2887.097417][ T253] inet6_addr_add+0x30e/0xa40 [ 2887.097417][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2887.097417][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2887.097417][ T253] netlink_rcv_skb+0x130/0x360 [ 2887.097417][ T253] netlink_unicast+0x449/0x710 [ 2887.097417][ T253] netlink_sendmsg+0x723/0xbe0 [ 2887.097417][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2887.097417][ T253] ___sys_sendmsg+0xee/0x170 [ 2887.097417][ T253] __sys_sendmsg+0xcd/0x170 [ 2887.097417][ T253] do_syscall_64+0xc6/0x1e0 [ 2887.097417][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2887.097417][ T253] [ 2887.099668][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2887.099668][ T253] netdev_get_by_index+0x5e/0x80 [ 2887.099668][ T253] fib6_nh_init+0x3d8/0x1580 [ 2887.099668][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2887.099668][ T253] ip6_route_add+0x1c/0x140 [ 2887.099668][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2887.099668][ T253] addrconf_add_dev+0xe2/0x170 [ 2887.099668][ T253] inet6_addr_add+0x12f/0xa40 [ 2887.099668][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2887.099668][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2887.099668][ T253] netlink_rcv_skb+0x130/0x360 [ 2887.099668][ T253] netlink_unicast+0x449/0x710 [ 2887.099668][ T253] netlink_sendmsg+0x723/0xbe0 [ 2887.099668][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2887.099668][ T253] ___sys_sendmsg+0xee/0x170 [ 2887.099668][ T253] __sys_sendmsg+0xcd/0x170 [ 2887.099668][ T253] do_syscall_64+0xc6/0x1e0 [ 2887.099668][ T253] [ 2887.101870][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2887.101870][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2887.101870][ T253] ipv6_find_idev+0x102/0x170 [ 2887.101870][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2887.101870][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2887.101870][ T253] netlink_rcv_skb+0x130/0x360 [ 2887.101870][ T253] netlink_unicast+0x449/0x710 [ 2887.101870][ T253] netlink_sendmsg+0x723/0xbe0 [ 2887.101870][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2887.101870][ T253] ___sys_sendmsg+0xee/0x170 [ 2887.101870][ T253] __sys_sendmsg+0xcd/0x170 [ 2887.101870][ T253] do_syscall_64+0xc6/0x1e0 [ 2887.101870][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2887.101870][ T253] [ 2887.103589][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2887.103589][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2887.103589][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2887.103589][ T253] ipv6_find_idev+0x102/0x170 [ 2887.103589][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2887.103589][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2887.103589][ T253] netlink_rcv_skb+0x130/0x360 [ 2887.103589][ T253] netlink_unicast+0x449/0x710 [ 2887.103589][ T253] netlink_sendmsg+0x723/0xbe0 [ 2887.103589][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2887.103589][ T253] ___sys_sendmsg+0xee/0x170 [ 2887.103589][ T253] __sys_sendmsg+0xcd/0x170 [ 2887.103589][ T253] do_syscall_64+0xc6/0x1e0 [ 2887.103589][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2887.103589][ T253] [ 2897.346233][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2897.346731][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2897.346731][ T253] dst_init+0x84/0x4a0 [ 2897.346731][ T253] dst_alloc+0x97/0x150 [ 2897.346731][ T253] ip6_dst_alloc+0x23/0x90 [ 2897.346731][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2897.346731][ T253] ip6_pol_route+0x56f/0x840 [ 2897.346731][ T253] fib6_rule_lookup+0x334/0x630 [ 2897.346731][ T253] ip6_route_output_flags+0x259/0x480 [ 2897.346731][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2897.346731][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2897.346731][ T253] netlink_rcv_skb+0x130/0x360 [ 2897.346731][ T253] netlink_unicast+0x449/0x710 [ 2897.346731][ T253] netlink_sendmsg+0x723/0xbe0 [ 2897.346731][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2897.346731][ T253] ___sys_sendmsg+0xee/0x170 [ 2897.346731][ T253] __sys_sendmsg+0xcd/0x170 [ 2897.346731][ T253] do_syscall_64+0xc6/0x1e0 [ 2897.346731][ T253] [ 2897.348935][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2897.348935][ T253] netdev_get_by_index+0x5e/0x80 [ 2897.348935][ T253] fib6_nh_init+0x3d8/0x1580 [ 2897.348935][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2897.348935][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2897.348935][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2897.348935][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2897.348935][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2897.348935][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2897.348935][ T253] addrconf_dad_begin+0x310/0x670 [ 2897.348935][ T253] addrconf_dad_work+0x10b/0xab0 [ 2897.348935][ T253] process_one_work+0x84d/0x18a0 [ 2897.348935][ T253] worker_thread+0x587/0xd30 [ 2897.348935][ T253] kthread+0x28a/0x350 [ 2897.348935][ T253] ret_from_fork+0x31/0x70 [ 2897.348935][ T253] ret_from_fork_asm+0x1a/0x30 [ 2897.348935][ T253] [ 2897.351078][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2897.351078][ T253] netdev_get_by_index+0x5e/0x80 [ 2897.351078][ T253] fib6_nh_init+0x3d8/0x1580 [ 2897.351078][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2897.351078][ T253] ip6_route_add+0x1c/0x140 [ 2897.351078][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2897.351078][ T253] inet6_addr_add+0x4f8/0xa40 [ 2897.351078][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2897.351078][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2897.351078][ T253] netlink_rcv_skb+0x130/0x360 [ 2897.351078][ T253] netlink_unicast+0x449/0x710 [ 2897.351078][ T253] netlink_sendmsg+0x723/0xbe0 [ 2897.351078][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2897.351078][ T253] ___sys_sendmsg+0xee/0x170 [ 2897.351078][ T253] __sys_sendmsg+0xcd/0x170 [ 2897.351078][ T253] do_syscall_64+0xc6/0x1e0 [ 2897.351078][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2897.351078][ T253] [ 2897.353319][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2897.353319][ T253] netdev_get_by_index+0x5e/0x80 [ 2897.353319][ T253] fib6_nh_init+0x3d8/0x1580 [ 2897.353319][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2897.353319][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2897.353319][ T253] ipv6_add_addr+0x411/0x2000 [ 2897.353319][ T253] inet6_addr_add+0x30e/0xa40 [ 2897.353319][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2897.353319][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2897.353319][ T253] netlink_rcv_skb+0x130/0x360 [ 2897.353319][ T253] netlink_unicast+0x449/0x710 [ 2897.353319][ T253] netlink_sendmsg+0x723/0xbe0 [ 2897.353319][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2897.353319][ T253] ___sys_sendmsg+0xee/0x170 [ 2897.353319][ T253] __sys_sendmsg+0xcd/0x170 [ 2897.353319][ T253] do_syscall_64+0xc6/0x1e0 [ 2897.353319][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2897.353319][ T253] [ 2897.355565][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2897.355565][ T253] netdev_get_by_index+0x5e/0x80 [ 2897.355565][ T253] fib6_nh_init+0x3d8/0x1580 [ 2897.355565][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2897.355565][ T253] ip6_route_add+0x1c/0x140 [ 2897.355565][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2897.355565][ T253] addrconf_add_dev+0xe2/0x170 [ 2897.355565][ T253] inet6_addr_add+0x12f/0xa40 [ 2897.355565][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2897.355565][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2897.355565][ T253] netlink_rcv_skb+0x130/0x360 [ 2897.355565][ T253] netlink_unicast+0x449/0x710 [ 2897.355565][ T253] netlink_sendmsg+0x723/0xbe0 [ 2897.355565][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2897.355565][ T253] ___sys_sendmsg+0xee/0x170 [ 2897.355565][ T253] __sys_sendmsg+0xcd/0x170 [ 2897.355565][ T253] do_syscall_64+0xc6/0x1e0 [ 2897.355565][ T253] [ 2897.357771][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2897.357771][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2897.357771][ T253] ipv6_find_idev+0x102/0x170 [ 2897.357771][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2897.357771][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2897.357771][ T253] netlink_rcv_skb+0x130/0x360 [ 2897.357771][ T253] netlink_unicast+0x449/0x710 [ 2897.357771][ T253] netlink_sendmsg+0x723/0xbe0 [ 2897.357771][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2897.357771][ T253] ___sys_sendmsg+0xee/0x170 [ 2897.357771][ T253] __sys_sendmsg+0xcd/0x170 [ 2897.357771][ T253] do_syscall_64+0xc6/0x1e0 [ 2897.357771][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2897.357771][ T253] [ 2897.359490][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2897.359490][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2897.359490][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2897.359490][ T253] ipv6_find_idev+0x102/0x170 [ 2897.359490][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2897.359490][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2897.359490][ T253] netlink_rcv_skb+0x130/0x360 [ 2897.359490][ T253] netlink_unicast+0x449/0x710 [ 2897.359490][ T253] netlink_sendmsg+0x723/0xbe0 [ 2897.359490][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2897.359490][ T253] ___sys_sendmsg+0xee/0x170 [ 2897.359490][ T253] __sys_sendmsg+0xcd/0x170 [ 2897.359490][ T253] do_syscall_64+0xc6/0x1e0 [ 2897.359490][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2897.359490][ T253] [ 2907.602298][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2907.602776][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2907.602776][ T253] dst_init+0x84/0x4a0 [ 2907.602776][ T253] dst_alloc+0x97/0x150 [ 2907.602776][ T253] ip6_dst_alloc+0x23/0x90 [ 2907.602776][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2907.602776][ T253] ip6_pol_route+0x56f/0x840 [ 2907.602776][ T253] fib6_rule_lookup+0x334/0x630 [ 2907.602776][ T253] ip6_route_output_flags+0x259/0x480 [ 2907.602776][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2907.602776][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2907.602776][ T253] netlink_rcv_skb+0x130/0x360 [ 2907.602776][ T253] netlink_unicast+0x449/0x710 [ 2907.602776][ T253] netlink_sendmsg+0x723/0xbe0 [ 2907.602776][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2907.602776][ T253] ___sys_sendmsg+0xee/0x170 [ 2907.602776][ T253] __sys_sendmsg+0xcd/0x170 [ 2907.602776][ T253] do_syscall_64+0xc6/0x1e0 [ 2907.602776][ T253] [ 2907.604972][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2907.604972][ T253] netdev_get_by_index+0x5e/0x80 [ 2907.604972][ T253] fib6_nh_init+0x3d8/0x1580 [ 2907.604972][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2907.604972][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2907.604972][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2907.604972][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2907.604972][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2907.604972][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2907.604972][ T253] addrconf_dad_begin+0x310/0x670 [ 2907.604972][ T253] addrconf_dad_work+0x10b/0xab0 [ 2907.604972][ T253] process_one_work+0x84d/0x18a0 [ 2907.604972][ T253] worker_thread+0x587/0xd30 [ 2907.604972][ T253] kthread+0x28a/0x350 [ 2907.604972][ T253] ret_from_fork+0x31/0x70 [ 2907.604972][ T253] ret_from_fork_asm+0x1a/0x30 [ 2907.604972][ T253] [ 2907.607130][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2907.607130][ T253] netdev_get_by_index+0x5e/0x80 [ 2907.607130][ T253] fib6_nh_init+0x3d8/0x1580 [ 2907.607130][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2907.607130][ T253] ip6_route_add+0x1c/0x140 [ 2907.607130][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2907.607130][ T253] inet6_addr_add+0x4f8/0xa40 [ 2907.607130][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2907.607130][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2907.607130][ T253] netlink_rcv_skb+0x130/0x360 [ 2907.607130][ T253] netlink_unicast+0x449/0x710 [ 2907.607130][ T253] netlink_sendmsg+0x723/0xbe0 [ 2907.607130][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2907.607130][ T253] ___sys_sendmsg+0xee/0x170 [ 2907.607130][ T253] __sys_sendmsg+0xcd/0x170 [ 2907.607130][ T253] do_syscall_64+0xc6/0x1e0 [ 2907.607130][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2907.607130][ T253] [ 2907.609371][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2907.609371][ T253] netdev_get_by_index+0x5e/0x80 [ 2907.609371][ T253] fib6_nh_init+0x3d8/0x1580 [ 2907.609371][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2907.609371][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2907.609371][ T253] ipv6_add_addr+0x411/0x2000 [ 2907.609371][ T253] inet6_addr_add+0x30e/0xa40 [ 2907.609371][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2907.609371][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2907.609371][ T253] netlink_rcv_skb+0x130/0x360 [ 2907.609371][ T253] netlink_unicast+0x449/0x710 [ 2907.609371][ T253] netlink_sendmsg+0x723/0xbe0 [ 2907.609371][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2907.609371][ T253] ___sys_sendmsg+0xee/0x170 [ 2907.609371][ T253] __sys_sendmsg+0xcd/0x170 [ 2907.609371][ T253] do_syscall_64+0xc6/0x1e0 [ 2907.609371][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2907.609371][ T253] [ 2907.611619][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2907.611619][ T253] netdev_get_by_index+0x5e/0x80 [ 2907.611619][ T253] fib6_nh_init+0x3d8/0x1580 [ 2907.611619][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2907.611619][ T253] ip6_route_add+0x1c/0x140 [ 2907.611619][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2907.611619][ T253] addrconf_add_dev+0xe2/0x170 [ 2907.611619][ T253] inet6_addr_add+0x12f/0xa40 [ 2907.611619][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2907.611619][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2907.611619][ T253] netlink_rcv_skb+0x130/0x360 [ 2907.611619][ T253] netlink_unicast+0x449/0x710 [ 2907.611619][ T253] netlink_sendmsg+0x723/0xbe0 [ 2907.611619][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2907.611619][ T253] ___sys_sendmsg+0xee/0x170 [ 2907.611619][ T253] __sys_sendmsg+0xcd/0x170 [ 2907.611619][ T253] do_syscall_64+0xc6/0x1e0 [ 2907.611619][ T253] [ 2907.613830][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2907.613830][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2907.613830][ T253] ipv6_find_idev+0x102/0x170 [ 2907.613830][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2907.613830][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2907.613830][ T253] netlink_rcv_skb+0x130/0x360 [ 2907.613830][ T253] netlink_unicast+0x449/0x710 [ 2907.613830][ T253] netlink_sendmsg+0x723/0xbe0 [ 2907.613830][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2907.613830][ T253] ___sys_sendmsg+0xee/0x170 [ 2907.613830][ T253] __sys_sendmsg+0xcd/0x170 [ 2907.613830][ T253] do_syscall_64+0xc6/0x1e0 [ 2907.613830][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2907.613830][ T253] [ 2907.615674][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2907.615674][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2907.615674][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2907.615674][ T253] ipv6_find_idev+0x102/0x170 [ 2907.615674][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2907.615674][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2907.615674][ T253] netlink_rcv_skb+0x130/0x360 [ 2907.615674][ T253] netlink_unicast+0x449/0x710 [ 2907.615674][ T253] netlink_sendmsg+0x723/0xbe0 [ 2907.615674][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2907.615674][ T253] ___sys_sendmsg+0xee/0x170 [ 2907.615674][ T253] __sys_sendmsg+0xcd/0x170 [ 2907.615674][ T253] do_syscall_64+0xc6/0x1e0 [ 2907.615674][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2907.615674][ T253] [ 2917.858311][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2917.858781][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2917.858781][ T253] dst_init+0x84/0x4a0 [ 2917.858781][ T253] dst_alloc+0x97/0x150 [ 2917.858781][ T253] ip6_dst_alloc+0x23/0x90 [ 2917.858781][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2917.858781][ T253] ip6_pol_route+0x56f/0x840 [ 2917.858781][ T253] fib6_rule_lookup+0x334/0x630 [ 2917.858781][ T253] ip6_route_output_flags+0x259/0x480 [ 2917.858781][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2917.858781][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2917.858781][ T253] netlink_rcv_skb+0x130/0x360 [ 2917.858781][ T253] netlink_unicast+0x449/0x710 [ 2917.858781][ T253] netlink_sendmsg+0x723/0xbe0 [ 2917.858781][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2917.858781][ T253] ___sys_sendmsg+0xee/0x170 [ 2917.858781][ T253] __sys_sendmsg+0xcd/0x170 [ 2917.858781][ T253] do_syscall_64+0xc6/0x1e0 [ 2917.858781][ T253] [ 2917.860984][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2917.860984][ T253] netdev_get_by_index+0x5e/0x80 [ 2917.860984][ T253] fib6_nh_init+0x3d8/0x1580 [ 2917.860984][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2917.860984][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2917.860984][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2917.860984][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2917.860984][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2917.860984][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2917.860984][ T253] addrconf_dad_begin+0x310/0x670 [ 2917.860984][ T253] addrconf_dad_work+0x10b/0xab0 [ 2917.860984][ T253] process_one_work+0x84d/0x18a0 [ 2917.860984][ T253] worker_thread+0x587/0xd30 [ 2917.860984][ T253] kthread+0x28a/0x350 [ 2917.860984][ T253] ret_from_fork+0x31/0x70 [ 2917.860984][ T253] ret_from_fork_asm+0x1a/0x30 [ 2917.860984][ T253] [ 2917.863122][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2917.863122][ T253] netdev_get_by_index+0x5e/0x80 [ 2917.863122][ T253] fib6_nh_init+0x3d8/0x1580 [ 2917.863122][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2917.863122][ T253] ip6_route_add+0x1c/0x140 [ 2917.863122][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2917.863122][ T253] inet6_addr_add+0x4f8/0xa40 [ 2917.863122][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2917.863122][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2917.863122][ T253] netlink_rcv_skb+0x130/0x360 [ 2917.863122][ T253] netlink_unicast+0x449/0x710 [ 2917.863122][ T253] netlink_sendmsg+0x723/0xbe0 [ 2917.863122][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2917.863122][ T253] ___sys_sendmsg+0xee/0x170 [ 2917.863122][ T253] __sys_sendmsg+0xcd/0x170 [ 2917.863122][ T253] do_syscall_64+0xc6/0x1e0 [ 2917.863122][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2917.863122][ T253] [ 2917.865391][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2917.865391][ T253] netdev_get_by_index+0x5e/0x80 [ 2917.865391][ T253] fib6_nh_init+0x3d8/0x1580 [ 2917.865391][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2917.865391][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2917.865391][ T253] ipv6_add_addr+0x411/0x2000 [ 2917.865391][ T253] inet6_addr_add+0x30e/0xa40 [ 2917.865391][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2917.865391][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2917.865391][ T253] netlink_rcv_skb+0x130/0x360 [ 2917.865391][ T253] netlink_unicast+0x449/0x710 [ 2917.865391][ T253] netlink_sendmsg+0x723/0xbe0 [ 2917.865391][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2917.865391][ T253] ___sys_sendmsg+0xee/0x170 [ 2917.865391][ T253] __sys_sendmsg+0xcd/0x170 [ 2917.865391][ T253] do_syscall_64+0xc6/0x1e0 [ 2917.865391][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2917.865391][ T253] [ 2917.867657][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2917.867657][ T253] netdev_get_by_index+0x5e/0x80 [ 2917.867657][ T253] fib6_nh_init+0x3d8/0x1580 [ 2917.867657][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2917.867657][ T253] ip6_route_add+0x1c/0x140 [ 2917.867657][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2917.867657][ T253] addrconf_add_dev+0xe2/0x170 [ 2917.867657][ T253] inet6_addr_add+0x12f/0xa40 [ 2917.867657][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2917.867657][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2917.867657][ T253] netlink_rcv_skb+0x130/0x360 [ 2917.867657][ T253] netlink_unicast+0x449/0x710 [ 2917.867657][ T253] netlink_sendmsg+0x723/0xbe0 [ 2917.867657][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2917.867657][ T253] ___sys_sendmsg+0xee/0x170 [ 2917.867657][ T253] __sys_sendmsg+0xcd/0x170 [ 2917.867657][ T253] do_syscall_64+0xc6/0x1e0 [ 2917.867657][ T253] [ 2917.869857][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2917.869857][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2917.869857][ T253] ipv6_find_idev+0x102/0x170 [ 2917.869857][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2917.869857][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2917.869857][ T253] netlink_rcv_skb+0x130/0x360 [ 2917.869857][ T253] netlink_unicast+0x449/0x710 [ 2917.869857][ T253] netlink_sendmsg+0x723/0xbe0 [ 2917.869857][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2917.869857][ T253] ___sys_sendmsg+0xee/0x170 [ 2917.869857][ T253] __sys_sendmsg+0xcd/0x170 [ 2917.869857][ T253] do_syscall_64+0xc6/0x1e0 [ 2917.869857][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2917.869857][ T253] [ 2917.871589][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2917.871589][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2917.871589][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2917.871589][ T253] ipv6_find_idev+0x102/0x170 [ 2917.871589][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2917.871589][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2917.871589][ T253] netlink_rcv_skb+0x130/0x360 [ 2917.871589][ T253] netlink_unicast+0x449/0x710 [ 2917.871589][ T253] netlink_sendmsg+0x723/0xbe0 [ 2917.871589][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2917.871589][ T253] ___sys_sendmsg+0xee/0x170 [ 2917.871589][ T253] __sys_sendmsg+0xcd/0x170 [ 2917.871589][ T253] do_syscall_64+0xc6/0x1e0 [ 2917.871589][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2917.871589][ T253] [ 2928.338377][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2928.338851][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2928.338851][ T253] dst_init+0x84/0x4a0 [ 2928.338851][ T253] dst_alloc+0x97/0x150 [ 2928.338851][ T253] ip6_dst_alloc+0x23/0x90 [ 2928.338851][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2928.338851][ T253] ip6_pol_route+0x56f/0x840 [ 2928.338851][ T253] fib6_rule_lookup+0x334/0x630 [ 2928.338851][ T253] ip6_route_output_flags+0x259/0x480 [ 2928.338851][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2928.338851][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2928.338851][ T253] netlink_rcv_skb+0x130/0x360 [ 2928.338851][ T253] netlink_unicast+0x449/0x710 [ 2928.338851][ T253] netlink_sendmsg+0x723/0xbe0 [ 2928.338851][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2928.338851][ T253] ___sys_sendmsg+0xee/0x170 [ 2928.338851][ T253] __sys_sendmsg+0xcd/0x170 [ 2928.338851][ T253] do_syscall_64+0xc6/0x1e0 [ 2928.338851][ T253] [ 2928.341052][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2928.341052][ T253] netdev_get_by_index+0x5e/0x80 [ 2928.341052][ T253] fib6_nh_init+0x3d8/0x1580 [ 2928.341052][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2928.341052][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2928.341052][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2928.341052][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2928.341052][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2928.341052][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2928.341052][ T253] addrconf_dad_begin+0x310/0x670 [ 2928.341052][ T253] addrconf_dad_work+0x10b/0xab0 [ 2928.341052][ T253] process_one_work+0x84d/0x18a0 [ 2928.341052][ T253] worker_thread+0x587/0xd30 [ 2928.341052][ T253] kthread+0x28a/0x350 [ 2928.341052][ T253] ret_from_fork+0x31/0x70 [ 2928.341052][ T253] ret_from_fork_asm+0x1a/0x30 [ 2928.341052][ T253] [ 2928.343199][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2928.343199][ T253] netdev_get_by_index+0x5e/0x80 [ 2928.343199][ T253] fib6_nh_init+0x3d8/0x1580 [ 2928.343199][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2928.343199][ T253] ip6_route_add+0x1c/0x140 [ 2928.343199][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2928.343199][ T253] inet6_addr_add+0x4f8/0xa40 [ 2928.343199][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2928.343199][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2928.343199][ T253] netlink_rcv_skb+0x130/0x360 [ 2928.343199][ T253] netlink_unicast+0x449/0x710 [ 2928.343199][ T253] netlink_sendmsg+0x723/0xbe0 [ 2928.343199][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2928.343199][ T253] ___sys_sendmsg+0xee/0x170 [ 2928.343199][ T253] __sys_sendmsg+0xcd/0x170 [ 2928.343199][ T253] do_syscall_64+0xc6/0x1e0 [ 2928.343199][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2928.343199][ T253] [ 2928.345452][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2928.345452][ T253] netdev_get_by_index+0x5e/0x80 [ 2928.345452][ T253] fib6_nh_init+0x3d8/0x1580 [ 2928.345452][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2928.345452][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2928.345452][ T253] ipv6_add_addr+0x411/0x2000 [ 2928.345452][ T253] inet6_addr_add+0x30e/0xa40 [ 2928.345452][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2928.345452][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2928.345452][ T253] netlink_rcv_skb+0x130/0x360 [ 2928.345452][ T253] netlink_unicast+0x449/0x710 [ 2928.345452][ T253] netlink_sendmsg+0x723/0xbe0 [ 2928.345452][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2928.345452][ T253] ___sys_sendmsg+0xee/0x170 [ 2928.345452][ T253] __sys_sendmsg+0xcd/0x170 [ 2928.345452][ T253] do_syscall_64+0xc6/0x1e0 [ 2928.345452][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2928.345452][ T253] [ 2928.347725][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2928.347725][ T253] netdev_get_by_index+0x5e/0x80 [ 2928.347725][ T253] fib6_nh_init+0x3d8/0x1580 [ 2928.347725][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2928.347725][ T253] ip6_route_add+0x1c/0x140 [ 2928.347725][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2928.347725][ T253] addrconf_add_dev+0xe2/0x170 [ 2928.347725][ T253] inet6_addr_add+0x12f/0xa40 [ 2928.347725][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2928.347725][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2928.347725][ T253] netlink_rcv_skb+0x130/0x360 [ 2928.347725][ T253] netlink_unicast+0x449/0x710 [ 2928.347725][ T253] netlink_sendmsg+0x723/0xbe0 [ 2928.347725][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2928.347725][ T253] ___sys_sendmsg+0xee/0x170 [ 2928.347725][ T253] __sys_sendmsg+0xcd/0x170 [ 2928.347725][ T253] do_syscall_64+0xc6/0x1e0 [ 2928.347725][ T253] [ 2928.349931][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2928.349931][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2928.349931][ T253] ipv6_find_idev+0x102/0x170 [ 2928.349931][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2928.349931][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2928.349931][ T253] netlink_rcv_skb+0x130/0x360 [ 2928.349931][ T253] netlink_unicast+0x449/0x710 [ 2928.349931][ T253] netlink_sendmsg+0x723/0xbe0 [ 2928.349931][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2928.349931][ T253] ___sys_sendmsg+0xee/0x170 [ 2928.349931][ T253] __sys_sendmsg+0xcd/0x170 [ 2928.349931][ T253] do_syscall_64+0xc6/0x1e0 [ 2928.349931][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2928.349931][ T253] [ 2928.351660][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2928.351660][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2928.351660][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2928.351660][ T253] ipv6_find_idev+0x102/0x170 [ 2928.351660][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2928.351660][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2928.351660][ T253] netlink_rcv_skb+0x130/0x360 [ 2928.351660][ T253] netlink_unicast+0x449/0x710 [ 2928.351660][ T253] netlink_sendmsg+0x723/0xbe0 [ 2928.351660][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2928.351660][ T253] ___sys_sendmsg+0xee/0x170 [ 2928.351660][ T253] __sys_sendmsg+0xcd/0x170 [ 2928.351660][ T253] do_syscall_64+0xc6/0x1e0 [ 2928.351660][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2928.351660][ T253] [ 2938.602245][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2938.602734][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2938.602734][ T253] dst_init+0x84/0x4a0 [ 2938.602734][ T253] dst_alloc+0x97/0x150 [ 2938.602734][ T253] ip6_dst_alloc+0x23/0x90 [ 2938.602734][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2938.602734][ T253] ip6_pol_route+0x56f/0x840 [ 2938.602734][ T253] fib6_rule_lookup+0x334/0x630 [ 2938.602734][ T253] ip6_route_output_flags+0x259/0x480 [ 2938.602734][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2938.602734][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2938.602734][ T253] netlink_rcv_skb+0x130/0x360 [ 2938.602734][ T253] netlink_unicast+0x449/0x710 [ 2938.602734][ T253] netlink_sendmsg+0x723/0xbe0 [ 2938.602734][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2938.602734][ T253] ___sys_sendmsg+0xee/0x170 [ 2938.602734][ T253] __sys_sendmsg+0xcd/0x170 [ 2938.602734][ T253] do_syscall_64+0xc6/0x1e0 [ 2938.602734][ T253] [ 2938.604931][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2938.604931][ T253] netdev_get_by_index+0x5e/0x80 [ 2938.604931][ T253] fib6_nh_init+0x3d8/0x1580 [ 2938.604931][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2938.604931][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2938.604931][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2938.604931][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2938.604931][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2938.604931][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2938.604931][ T253] addrconf_dad_begin+0x310/0x670 [ 2938.604931][ T253] addrconf_dad_work+0x10b/0xab0 [ 2938.604931][ T253] process_one_work+0x84d/0x18a0 [ 2938.604931][ T253] worker_thread+0x587/0xd30 [ 2938.604931][ T253] kthread+0x28a/0x350 [ 2938.604931][ T253] ret_from_fork+0x31/0x70 [ 2938.604931][ T253] ret_from_fork_asm+0x1a/0x30 [ 2938.604931][ T253] [ 2938.607093][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2938.607093][ T253] netdev_get_by_index+0x5e/0x80 [ 2938.607093][ T253] fib6_nh_init+0x3d8/0x1580 [ 2938.607093][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2938.607093][ T253] ip6_route_add+0x1c/0x140 [ 2938.607093][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2938.607093][ T253] inet6_addr_add+0x4f8/0xa40 [ 2938.607093][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2938.607093][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2938.607093][ T253] netlink_rcv_skb+0x130/0x360 [ 2938.607093][ T253] netlink_unicast+0x449/0x710 [ 2938.607093][ T253] netlink_sendmsg+0x723/0xbe0 [ 2938.607093][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2938.607093][ T253] ___sys_sendmsg+0xee/0x170 [ 2938.607093][ T253] __sys_sendmsg+0xcd/0x170 [ 2938.607093][ T253] do_syscall_64+0xc6/0x1e0 [ 2938.607093][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2938.607093][ T253] [ 2938.609333][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2938.609333][ T253] netdev_get_by_index+0x5e/0x80 [ 2938.609333][ T253] fib6_nh_init+0x3d8/0x1580 [ 2938.609333][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2938.609333][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2938.609333][ T253] ipv6_add_addr+0x411/0x2000 [ 2938.609333][ T253] inet6_addr_add+0x30e/0xa40 [ 2938.609333][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2938.609333][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2938.609333][ T253] netlink_rcv_skb+0x130/0x360 [ 2938.609333][ T253] netlink_unicast+0x449/0x710 [ 2938.609333][ T253] netlink_sendmsg+0x723/0xbe0 [ 2938.609333][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2938.609333][ T253] ___sys_sendmsg+0xee/0x170 [ 2938.609333][ T253] __sys_sendmsg+0xcd/0x170 [ 2938.609333][ T253] do_syscall_64+0xc6/0x1e0 [ 2938.609333][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2938.609333][ T253] [ 2938.611573][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2938.611573][ T253] netdev_get_by_index+0x5e/0x80 [ 2938.611573][ T253] fib6_nh_init+0x3d8/0x1580 [ 2938.611573][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2938.611573][ T253] ip6_route_add+0x1c/0x140 [ 2938.611573][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2938.611573][ T253] addrconf_add_dev+0xe2/0x170 [ 2938.611573][ T253] inet6_addr_add+0x12f/0xa40 [ 2938.611573][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2938.611573][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2938.611573][ T253] netlink_rcv_skb+0x130/0x360 [ 2938.611573][ T253] netlink_unicast+0x449/0x710 [ 2938.611573][ T253] netlink_sendmsg+0x723/0xbe0 [ 2938.611573][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2938.611573][ T253] ___sys_sendmsg+0xee/0x170 [ 2938.611573][ T253] __sys_sendmsg+0xcd/0x170 [ 2938.611573][ T253] do_syscall_64+0xc6/0x1e0 [ 2938.611573][ T253] [ 2938.613771][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2938.613771][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2938.613771][ T253] ipv6_find_idev+0x102/0x170 [ 2938.613771][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2938.613771][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2938.613771][ T253] netlink_rcv_skb+0x130/0x360 [ 2938.613771][ T253] netlink_unicast+0x449/0x710 [ 2938.613771][ T253] netlink_sendmsg+0x723/0xbe0 [ 2938.613771][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2938.613771][ T253] ___sys_sendmsg+0xee/0x170 [ 2938.613771][ T253] __sys_sendmsg+0xcd/0x170 [ 2938.613771][ T253] do_syscall_64+0xc6/0x1e0 [ 2938.613771][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2938.613771][ T253] [ 2938.615496][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2938.615496][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2938.615496][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2938.615496][ T253] ipv6_find_idev+0x102/0x170 [ 2938.615496][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2938.615496][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2938.615496][ T253] netlink_rcv_skb+0x130/0x360 [ 2938.615496][ T253] netlink_unicast+0x449/0x710 [ 2938.615496][ T253] netlink_sendmsg+0x723/0xbe0 [ 2938.615496][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2938.615496][ T253] ___sys_sendmsg+0xee/0x170 [ 2938.615496][ T253] __sys_sendmsg+0xcd/0x170 [ 2938.615496][ T253] do_syscall_64+0xc6/0x1e0 [ 2938.615496][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2938.615496][ T253] [ 2948.850296][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2948.850770][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2948.850770][ T253] dst_init+0x84/0x4a0 [ 2948.850770][ T253] dst_alloc+0x97/0x150 [ 2948.850770][ T253] ip6_dst_alloc+0x23/0x90 [ 2948.850770][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2948.850770][ T253] ip6_pol_route+0x56f/0x840 [ 2948.850770][ T253] fib6_rule_lookup+0x334/0x630 [ 2948.850770][ T253] ip6_route_output_flags+0x259/0x480 [ 2948.850770][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2948.850770][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2948.850770][ T253] netlink_rcv_skb+0x130/0x360 [ 2948.850770][ T253] netlink_unicast+0x449/0x710 [ 2948.850770][ T253] netlink_sendmsg+0x723/0xbe0 [ 2948.850770][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2948.850770][ T253] ___sys_sendmsg+0xee/0x170 [ 2948.850770][ T253] __sys_sendmsg+0xcd/0x170 [ 2948.850770][ T253] do_syscall_64+0xc6/0x1e0 [ 2948.850770][ T253] [ 2948.852964][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2948.852964][ T253] netdev_get_by_index+0x5e/0x80 [ 2948.852964][ T253] fib6_nh_init+0x3d8/0x1580 [ 2948.852964][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2948.852964][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2948.852964][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2948.852964][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2948.852964][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2948.852964][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2948.852964][ T253] addrconf_dad_begin+0x310/0x670 [ 2948.852964][ T253] addrconf_dad_work+0x10b/0xab0 [ 2948.852964][ T253] process_one_work+0x84d/0x18a0 [ 2948.852964][ T253] worker_thread+0x587/0xd30 [ 2948.852964][ T253] kthread+0x28a/0x350 [ 2948.852964][ T253] ret_from_fork+0x31/0x70 [ 2948.852964][ T253] ret_from_fork_asm+0x1a/0x30 [ 2948.852964][ T253] [ 2948.855098][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2948.855098][ T253] netdev_get_by_index+0x5e/0x80 [ 2948.855098][ T253] fib6_nh_init+0x3d8/0x1580 [ 2948.855098][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2948.855098][ T253] ip6_route_add+0x1c/0x140 [ 2948.855098][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2948.855098][ T253] inet6_addr_add+0x4f8/0xa40 [ 2948.855098][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2948.855098][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2948.855098][ T253] netlink_rcv_skb+0x130/0x360 [ 2948.855098][ T253] netlink_unicast+0x449/0x710 [ 2948.855098][ T253] netlink_sendmsg+0x723/0xbe0 [ 2948.855098][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2948.855098][ T253] ___sys_sendmsg+0xee/0x170 [ 2948.855098][ T253] __sys_sendmsg+0xcd/0x170 [ 2948.855098][ T253] do_syscall_64+0xc6/0x1e0 [ 2948.855098][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2948.855098][ T253] [ 2948.857409][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2948.857409][ T253] netdev_get_by_index+0x5e/0x80 [ 2948.857409][ T253] fib6_nh_init+0x3d8/0x1580 [ 2948.857409][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2948.857409][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2948.857409][ T253] ipv6_add_addr+0x411/0x2000 [ 2948.857409][ T253] inet6_addr_add+0x30e/0xa40 [ 2948.857409][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2948.857409][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2948.857409][ T253] netlink_rcv_skb+0x130/0x360 [ 2948.857409][ T253] netlink_unicast+0x449/0x710 [ 2948.857409][ T253] netlink_sendmsg+0x723/0xbe0 [ 2948.857409][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2948.857409][ T253] ___sys_sendmsg+0xee/0x170 [ 2948.857409][ T253] __sys_sendmsg+0xcd/0x170 [ 2948.857409][ T253] do_syscall_64+0xc6/0x1e0 [ 2948.857409][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2948.857409][ T253] [ 2948.859648][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2948.859648][ T253] netdev_get_by_index+0x5e/0x80 [ 2948.859648][ T253] fib6_nh_init+0x3d8/0x1580 [ 2948.859648][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2948.859648][ T253] ip6_route_add+0x1c/0x140 [ 2948.859648][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2948.859648][ T253] addrconf_add_dev+0xe2/0x170 [ 2948.859648][ T253] inet6_addr_add+0x12f/0xa40 [ 2948.859648][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2948.859648][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2948.859648][ T253] netlink_rcv_skb+0x130/0x360 [ 2948.859648][ T253] netlink_unicast+0x449/0x710 [ 2948.859648][ T253] netlink_sendmsg+0x723/0xbe0 [ 2948.859648][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2948.859648][ T253] ___sys_sendmsg+0xee/0x170 [ 2948.859648][ T253] __sys_sendmsg+0xcd/0x170 [ 2948.859648][ T253] do_syscall_64+0xc6/0x1e0 [ 2948.859648][ T253] [ 2948.861843][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2948.861843][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2948.861843][ T253] ipv6_find_idev+0x102/0x170 [ 2948.861843][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2948.861843][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2948.861843][ T253] netlink_rcv_skb+0x130/0x360 [ 2948.861843][ T253] netlink_unicast+0x449/0x710 [ 2948.861843][ T253] netlink_sendmsg+0x723/0xbe0 [ 2948.861843][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2948.861843][ T253] ___sys_sendmsg+0xee/0x170 [ 2948.861843][ T253] __sys_sendmsg+0xcd/0x170 [ 2948.861843][ T253] do_syscall_64+0xc6/0x1e0 [ 2948.861843][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2948.861843][ T253] [ 2948.863563][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2948.863563][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2948.863563][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2948.863563][ T253] ipv6_find_idev+0x102/0x170 [ 2948.863563][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2948.863563][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2948.863563][ T253] netlink_rcv_skb+0x130/0x360 [ 2948.863563][ T253] netlink_unicast+0x449/0x710 [ 2948.863563][ T253] netlink_sendmsg+0x723/0xbe0 [ 2948.863563][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2948.863563][ T253] ___sys_sendmsg+0xee/0x170 [ 2948.863563][ T253] __sys_sendmsg+0xcd/0x170 [ 2948.863563][ T253] do_syscall_64+0xc6/0x1e0 [ 2948.863563][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2948.863563][ T253] [ 2958.938350][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2958.938843][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2958.938843][ T253] dst_init+0x84/0x4a0 [ 2958.938843][ T253] dst_alloc+0x97/0x150 [ 2958.938843][ T253] ip6_dst_alloc+0x23/0x90 [ 2958.938843][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2958.938843][ T253] ip6_pol_route+0x56f/0x840 [ 2958.938843][ T253] fib6_rule_lookup+0x334/0x630 [ 2958.938843][ T253] ip6_route_output_flags+0x259/0x480 [ 2958.938843][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2958.938843][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2958.938843][ T253] netlink_rcv_skb+0x130/0x360 [ 2958.938843][ T253] netlink_unicast+0x449/0x710 [ 2958.938843][ T253] netlink_sendmsg+0x723/0xbe0 [ 2958.938843][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2958.938843][ T253] ___sys_sendmsg+0xee/0x170 [ 2958.938843][ T253] __sys_sendmsg+0xcd/0x170 [ 2958.938843][ T253] do_syscall_64+0xc6/0x1e0 [ 2958.938843][ T253] [ 2958.941066][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2958.941066][ T253] netdev_get_by_index+0x5e/0x80 [ 2958.941066][ T253] fib6_nh_init+0x3d8/0x1580 [ 2958.941066][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2958.941066][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2958.941066][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2958.941066][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2958.941066][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2958.941066][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2958.941066][ T253] addrconf_dad_begin+0x310/0x670 [ 2958.941066][ T253] addrconf_dad_work+0x10b/0xab0 [ 2958.941066][ T253] process_one_work+0x84d/0x18a0 [ 2958.941066][ T253] worker_thread+0x587/0xd30 [ 2958.941066][ T253] kthread+0x28a/0x350 [ 2958.941066][ T253] ret_from_fork+0x31/0x70 [ 2958.941066][ T253] ret_from_fork_asm+0x1a/0x30 [ 2958.941066][ T253] [ 2958.943234][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2958.943234][ T253] netdev_get_by_index+0x5e/0x80 [ 2958.943234][ T253] fib6_nh_init+0x3d8/0x1580 [ 2958.943234][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2958.943234][ T253] ip6_route_add+0x1c/0x140 [ 2958.943234][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2958.943234][ T253] inet6_addr_add+0x4f8/0xa40 [ 2958.943234][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2958.943234][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2958.943234][ T253] netlink_rcv_skb+0x130/0x360 [ 2958.943234][ T253] netlink_unicast+0x449/0x710 [ 2958.943234][ T253] netlink_sendmsg+0x723/0xbe0 [ 2958.943234][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2958.943234][ T253] ___sys_sendmsg+0xee/0x170 [ 2958.943234][ T253] __sys_sendmsg+0xcd/0x170 [ 2958.943234][ T253] do_syscall_64+0xc6/0x1e0 [ 2958.943234][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2958.943234][ T253] [ 2958.945500][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2958.945500][ T253] netdev_get_by_index+0x5e/0x80 [ 2958.945500][ T253] fib6_nh_init+0x3d8/0x1580 [ 2958.945500][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2958.945500][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2958.945500][ T253] ipv6_add_addr+0x411/0x2000 [ 2958.945500][ T253] inet6_addr_add+0x30e/0xa40 [ 2958.945500][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2958.945500][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2958.945500][ T253] netlink_rcv_skb+0x130/0x360 [ 2958.945500][ T253] netlink_unicast+0x449/0x710 [ 2958.945500][ T253] netlink_sendmsg+0x723/0xbe0 [ 2958.945500][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2958.945500][ T253] ___sys_sendmsg+0xee/0x170 [ 2958.945500][ T253] __sys_sendmsg+0xcd/0x170 [ 2958.945500][ T253] do_syscall_64+0xc6/0x1e0 [ 2958.945500][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2958.945500][ T253] [ 2958.947765][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2958.947765][ T253] netdev_get_by_index+0x5e/0x80 [ 2958.947765][ T253] fib6_nh_init+0x3d8/0x1580 [ 2958.947765][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2958.947765][ T253] ip6_route_add+0x1c/0x140 [ 2958.947765][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2958.947765][ T253] addrconf_add_dev+0xe2/0x170 [ 2958.947765][ T253] inet6_addr_add+0x12f/0xa40 [ 2958.947765][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2958.947765][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2958.947765][ T253] netlink_rcv_skb+0x130/0x360 [ 2958.947765][ T253] netlink_unicast+0x449/0x710 [ 2958.947765][ T253] netlink_sendmsg+0x723/0xbe0 [ 2958.947765][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2958.947765][ T253] ___sys_sendmsg+0xee/0x170 [ 2958.947765][ T253] __sys_sendmsg+0xcd/0x170 [ 2958.947765][ T253] do_syscall_64+0xc6/0x1e0 [ 2958.947765][ T253] [ 2958.949972][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2958.949972][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2958.949972][ T253] ipv6_find_idev+0x102/0x170 [ 2958.949972][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2958.949972][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2958.949972][ T253] netlink_rcv_skb+0x130/0x360 [ 2958.949972][ T253] netlink_unicast+0x449/0x710 [ 2958.949972][ T253] netlink_sendmsg+0x723/0xbe0 [ 2958.949972][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2958.949972][ T253] ___sys_sendmsg+0xee/0x170 [ 2958.949972][ T253] __sys_sendmsg+0xcd/0x170 [ 2958.949972][ T253] do_syscall_64+0xc6/0x1e0 [ 2958.949972][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2958.949972][ T253] [ 2958.951708][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2958.951708][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2958.951708][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2958.951708][ T253] ipv6_find_idev+0x102/0x170 [ 2958.951708][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2958.951708][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2958.951708][ T253] netlink_rcv_skb+0x130/0x360 [ 2958.951708][ T253] netlink_unicast+0x449/0x710 [ 2958.951708][ T253] netlink_sendmsg+0x723/0xbe0 [ 2958.951708][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2958.951708][ T253] ___sys_sendmsg+0xee/0x170 [ 2958.951708][ T253] __sys_sendmsg+0xcd/0x170 [ 2958.951708][ T253] do_syscall_64+0xc6/0x1e0 [ 2958.951708][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2958.951708][ T253] [ 2969.194237][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2969.194711][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2969.194711][ T253] dst_init+0x84/0x4a0 [ 2969.194711][ T253] dst_alloc+0x97/0x150 [ 2969.194711][ T253] ip6_dst_alloc+0x23/0x90 [ 2969.194711][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2969.194711][ T253] ip6_pol_route+0x56f/0x840 [ 2969.194711][ T253] fib6_rule_lookup+0x334/0x630 [ 2969.194711][ T253] ip6_route_output_flags+0x259/0x480 [ 2969.194711][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2969.194711][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2969.194711][ T253] netlink_rcv_skb+0x130/0x360 [ 2969.194711][ T253] netlink_unicast+0x449/0x710 [ 2969.194711][ T253] netlink_sendmsg+0x723/0xbe0 [ 2969.194711][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2969.194711][ T253] ___sys_sendmsg+0xee/0x170 [ 2969.194711][ T253] __sys_sendmsg+0xcd/0x170 [ 2969.194711][ T253] do_syscall_64+0xc6/0x1e0 [ 2969.194711][ T253] [ 2969.196978][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2969.196978][ T253] netdev_get_by_index+0x5e/0x80 [ 2969.196978][ T253] fib6_nh_init+0x3d8/0x1580 [ 2969.196978][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2969.196978][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2969.196978][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2969.196978][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2969.196978][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2969.196978][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2969.196978][ T253] addrconf_dad_begin+0x310/0x670 [ 2969.196978][ T253] addrconf_dad_work+0x10b/0xab0 [ 2969.196978][ T253] process_one_work+0x84d/0x18a0 [ 2969.196978][ T253] worker_thread+0x587/0xd30 [ 2969.196978][ T253] kthread+0x28a/0x350 [ 2969.196978][ T253] ret_from_fork+0x31/0x70 [ 2969.196978][ T253] ret_from_fork_asm+0x1a/0x30 [ 2969.196978][ T253] [ 2969.199153][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2969.199153][ T253] netdev_get_by_index+0x5e/0x80 [ 2969.199153][ T253] fib6_nh_init+0x3d8/0x1580 [ 2969.199153][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2969.199153][ T253] ip6_route_add+0x1c/0x140 [ 2969.199153][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2969.199153][ T253] inet6_addr_add+0x4f8/0xa40 [ 2969.199153][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2969.199153][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2969.199153][ T253] netlink_rcv_skb+0x130/0x360 [ 2969.199153][ T253] netlink_unicast+0x449/0x710 [ 2969.199153][ T253] netlink_sendmsg+0x723/0xbe0 [ 2969.199153][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2969.199153][ T253] ___sys_sendmsg+0xee/0x170 [ 2969.199153][ T253] __sys_sendmsg+0xcd/0x170 [ 2969.199153][ T253] do_syscall_64+0xc6/0x1e0 [ 2969.199153][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2969.199153][ T253] [ 2969.201418][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2969.201418][ T253] netdev_get_by_index+0x5e/0x80 [ 2969.201418][ T253] fib6_nh_init+0x3d8/0x1580 [ 2969.201418][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2969.201418][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2969.201418][ T253] ipv6_add_addr+0x411/0x2000 [ 2969.201418][ T253] inet6_addr_add+0x30e/0xa40 [ 2969.201418][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2969.201418][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2969.201418][ T253] netlink_rcv_skb+0x130/0x360 [ 2969.201418][ T253] netlink_unicast+0x449/0x710 [ 2969.201418][ T253] netlink_sendmsg+0x723/0xbe0 [ 2969.201418][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2969.201418][ T253] ___sys_sendmsg+0xee/0x170 [ 2969.201418][ T253] __sys_sendmsg+0xcd/0x170 [ 2969.201418][ T253] do_syscall_64+0xc6/0x1e0 [ 2969.201418][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2969.201418][ T253] [ 2969.203678][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2969.203678][ T253] netdev_get_by_index+0x5e/0x80 [ 2969.203678][ T253] fib6_nh_init+0x3d8/0x1580 [ 2969.203678][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2969.203678][ T253] ip6_route_add+0x1c/0x140 [ 2969.203678][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2969.203678][ T253] addrconf_add_dev+0xe2/0x170 [ 2969.203678][ T253] inet6_addr_add+0x12f/0xa40 [ 2969.203678][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2969.203678][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2969.203678][ T253] netlink_rcv_skb+0x130/0x360 [ 2969.203678][ T253] netlink_unicast+0x449/0x710 [ 2969.203678][ T253] netlink_sendmsg+0x723/0xbe0 [ 2969.203678][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2969.203678][ T253] ___sys_sendmsg+0xee/0x170 [ 2969.203678][ T253] __sys_sendmsg+0xcd/0x170 [ 2969.203678][ T253] do_syscall_64+0xc6/0x1e0 [ 2969.203678][ T253] [ 2969.205905][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2969.205905][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2969.205905][ T253] ipv6_find_idev+0x102/0x170 [ 2969.205905][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2969.205905][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2969.205905][ T253] netlink_rcv_skb+0x130/0x360 [ 2969.205905][ T253] netlink_unicast+0x449/0x710 [ 2969.205905][ T253] netlink_sendmsg+0x723/0xbe0 [ 2969.205905][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2969.205905][ T253] ___sys_sendmsg+0xee/0x170 [ 2969.205905][ T253] __sys_sendmsg+0xcd/0x170 [ 2969.205905][ T253] do_syscall_64+0xc6/0x1e0 [ 2969.205905][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2969.205905][ T253] [ 2969.207643][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2969.207643][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2969.207643][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2969.207643][ T253] ipv6_find_idev+0x102/0x170 [ 2969.207643][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2969.207643][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2969.207643][ T253] netlink_rcv_skb+0x130/0x360 [ 2969.207643][ T253] netlink_unicast+0x449/0x710 [ 2969.207643][ T253] netlink_sendmsg+0x723/0xbe0 [ 2969.207643][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2969.207643][ T253] ___sys_sendmsg+0xee/0x170 [ 2969.207643][ T253] __sys_sendmsg+0xcd/0x170 [ 2969.207643][ T253] do_syscall_64+0xc6/0x1e0 [ 2969.207643][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2969.207643][ T253] [ 2979.450310][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2979.450789][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2979.450789][ T253] dst_init+0x84/0x4a0 [ 2979.450789][ T253] dst_alloc+0x97/0x150 [ 2979.450789][ T253] ip6_dst_alloc+0x23/0x90 [ 2979.450789][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2979.450789][ T253] ip6_pol_route+0x56f/0x840 [ 2979.450789][ T253] fib6_rule_lookup+0x334/0x630 [ 2979.450789][ T253] ip6_route_output_flags+0x259/0x480 [ 2979.450789][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2979.450789][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2979.450789][ T253] netlink_rcv_skb+0x130/0x360 [ 2979.450789][ T253] netlink_unicast+0x449/0x710 [ 2979.450789][ T253] netlink_sendmsg+0x723/0xbe0 [ 2979.450789][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2979.450789][ T253] ___sys_sendmsg+0xee/0x170 [ 2979.450789][ T253] __sys_sendmsg+0xcd/0x170 [ 2979.450789][ T253] do_syscall_64+0xc6/0x1e0 [ 2979.450789][ T253] [ 2979.452991][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2979.452991][ T253] netdev_get_by_index+0x5e/0x80 [ 2979.452991][ T253] fib6_nh_init+0x3d8/0x1580 [ 2979.452991][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2979.452991][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2979.452991][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2979.452991][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2979.452991][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2979.452991][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2979.452991][ T253] addrconf_dad_begin+0x310/0x670 [ 2979.452991][ T253] addrconf_dad_work+0x10b/0xab0 [ 2979.452991][ T253] process_one_work+0x84d/0x18a0 [ 2979.452991][ T253] worker_thread+0x587/0xd30 [ 2979.452991][ T253] kthread+0x28a/0x350 [ 2979.452991][ T253] ret_from_fork+0x31/0x70 [ 2979.452991][ T253] ret_from_fork_asm+0x1a/0x30 [ 2979.452991][ T253] [ 2979.455134][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2979.455134][ T253] netdev_get_by_index+0x5e/0x80 [ 2979.455134][ T253] fib6_nh_init+0x3d8/0x1580 [ 2979.455134][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2979.455134][ T253] ip6_route_add+0x1c/0x140 [ 2979.455134][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2979.455134][ T253] inet6_addr_add+0x4f8/0xa40 [ 2979.455134][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2979.455134][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2979.455134][ T253] netlink_rcv_skb+0x130/0x360 [ 2979.455134][ T253] netlink_unicast+0x449/0x710 [ 2979.455134][ T253] netlink_sendmsg+0x723/0xbe0 [ 2979.455134][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2979.455134][ T253] ___sys_sendmsg+0xee/0x170 [ 2979.455134][ T253] __sys_sendmsg+0xcd/0x170 [ 2979.455134][ T253] do_syscall_64+0xc6/0x1e0 [ 2979.455134][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2979.455134][ T253] [ 2979.457380][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2979.457380][ T253] netdev_get_by_index+0x5e/0x80 [ 2979.457380][ T253] fib6_nh_init+0x3d8/0x1580 [ 2979.457380][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2979.457380][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2979.457380][ T253] ipv6_add_addr+0x411/0x2000 [ 2979.457380][ T253] inet6_addr_add+0x30e/0xa40 [ 2979.457380][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2979.457380][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2979.457380][ T253] netlink_rcv_skb+0x130/0x360 [ 2979.457380][ T253] netlink_unicast+0x449/0x710 [ 2979.457380][ T253] netlink_sendmsg+0x723/0xbe0 [ 2979.457380][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2979.457380][ T253] ___sys_sendmsg+0xee/0x170 [ 2979.457380][ T253] __sys_sendmsg+0xcd/0x170 [ 2979.457380][ T253] do_syscall_64+0xc6/0x1e0 [ 2979.457380][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2979.457380][ T253] [ 2979.459617][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2979.459617][ T253] netdev_get_by_index+0x5e/0x80 [ 2979.459617][ T253] fib6_nh_init+0x3d8/0x1580 [ 2979.459617][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2979.459617][ T253] ip6_route_add+0x1c/0x140 [ 2979.459617][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2979.459617][ T253] addrconf_add_dev+0xe2/0x170 [ 2979.459617][ T253] inet6_addr_add+0x12f/0xa40 [ 2979.459617][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2979.459617][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2979.459617][ T253] netlink_rcv_skb+0x130/0x360 [ 2979.459617][ T253] netlink_unicast+0x449/0x710 [ 2979.459617][ T253] netlink_sendmsg+0x723/0xbe0 [ 2979.459617][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2979.459617][ T253] ___sys_sendmsg+0xee/0x170 [ 2979.459617][ T253] __sys_sendmsg+0xcd/0x170 [ 2979.459617][ T253] do_syscall_64+0xc6/0x1e0 [ 2979.459617][ T253] [ 2979.461826][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2979.461826][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2979.461826][ T253] ipv6_find_idev+0x102/0x170 [ 2979.461826][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2979.461826][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2979.461826][ T253] netlink_rcv_skb+0x130/0x360 [ 2979.461826][ T253] netlink_unicast+0x449/0x710 [ 2979.461826][ T253] netlink_sendmsg+0x723/0xbe0 [ 2979.461826][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2979.461826][ T253] ___sys_sendmsg+0xee/0x170 [ 2979.461826][ T253] __sys_sendmsg+0xcd/0x170 [ 2979.461826][ T253] do_syscall_64+0xc6/0x1e0 [ 2979.461826][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2979.461826][ T253] [ 2979.463551][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2979.463551][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2979.463551][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2979.463551][ T253] ipv6_find_idev+0x102/0x170 [ 2979.463551][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2979.463551][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2979.463551][ T253] netlink_rcv_skb+0x130/0x360 [ 2979.463551][ T253] netlink_unicast+0x449/0x710 [ 2979.463551][ T253] netlink_sendmsg+0x723/0xbe0 [ 2979.463551][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2979.463551][ T253] ___sys_sendmsg+0xee/0x170 [ 2979.463551][ T253] __sys_sendmsg+0xcd/0x170 [ 2979.463551][ T253] do_syscall_64+0xc6/0x1e0 [ 2979.463551][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2979.463551][ T253] [ 2989.706220][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2989.706702][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2989.706702][ T253] dst_init+0x84/0x4a0 [ 2989.706702][ T253] dst_alloc+0x97/0x150 [ 2989.706702][ T253] ip6_dst_alloc+0x23/0x90 [ 2989.706702][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2989.706702][ T253] ip6_pol_route+0x56f/0x840 [ 2989.706702][ T253] fib6_rule_lookup+0x334/0x630 [ 2989.706702][ T253] ip6_route_output_flags+0x259/0x480 [ 2989.706702][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2989.706702][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2989.706702][ T253] netlink_rcv_skb+0x130/0x360 [ 2989.706702][ T253] netlink_unicast+0x449/0x710 [ 2989.706702][ T253] netlink_sendmsg+0x723/0xbe0 [ 2989.706702][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2989.706702][ T253] ___sys_sendmsg+0xee/0x170 [ 2989.706702][ T253] __sys_sendmsg+0xcd/0x170 [ 2989.706702][ T253] do_syscall_64+0xc6/0x1e0 [ 2989.706702][ T253] [ 2989.708911][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2989.708911][ T253] netdev_get_by_index+0x5e/0x80 [ 2989.708911][ T253] fib6_nh_init+0x3d8/0x1580 [ 2989.708911][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2989.708911][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2989.708911][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2989.708911][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2989.708911][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2989.708911][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2989.708911][ T253] addrconf_dad_begin+0x310/0x670 [ 2989.708911][ T253] addrconf_dad_work+0x10b/0xab0 [ 2989.708911][ T253] process_one_work+0x84d/0x18a0 [ 2989.708911][ T253] worker_thread+0x587/0xd30 [ 2989.708911][ T253] kthread+0x28a/0x350 [ 2989.708911][ T253] ret_from_fork+0x31/0x70 [ 2989.708911][ T253] ret_from_fork_asm+0x1a/0x30 [ 2989.708911][ T253] [ 2989.711154][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2989.711154][ T253] netdev_get_by_index+0x5e/0x80 [ 2989.711154][ T253] fib6_nh_init+0x3d8/0x1580 [ 2989.711154][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2989.711154][ T253] ip6_route_add+0x1c/0x140 [ 2989.711154][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2989.711154][ T253] inet6_addr_add+0x4f8/0xa40 [ 2989.711154][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2989.711154][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2989.711154][ T253] netlink_rcv_skb+0x130/0x360 [ 2989.711154][ T253] netlink_unicast+0x449/0x710 [ 2989.711154][ T253] netlink_sendmsg+0x723/0xbe0 [ 2989.711154][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2989.711154][ T253] ___sys_sendmsg+0xee/0x170 [ 2989.711154][ T253] __sys_sendmsg+0xcd/0x170 [ 2989.711154][ T253] do_syscall_64+0xc6/0x1e0 [ 2989.711154][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2989.711154][ T253] [ 2989.713408][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2989.713408][ T253] netdev_get_by_index+0x5e/0x80 [ 2989.713408][ T253] fib6_nh_init+0x3d8/0x1580 [ 2989.713408][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2989.713408][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2989.713408][ T253] ipv6_add_addr+0x411/0x2000 [ 2989.713408][ T253] inet6_addr_add+0x30e/0xa40 [ 2989.713408][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2989.713408][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2989.713408][ T253] netlink_rcv_skb+0x130/0x360 [ 2989.713408][ T253] netlink_unicast+0x449/0x710 [ 2989.713408][ T253] netlink_sendmsg+0x723/0xbe0 [ 2989.713408][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2989.713408][ T253] ___sys_sendmsg+0xee/0x170 [ 2989.713408][ T253] __sys_sendmsg+0xcd/0x170 [ 2989.713408][ T253] do_syscall_64+0xc6/0x1e0 [ 2989.713408][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2989.713408][ T253] [ 2989.715660][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2989.715660][ T253] netdev_get_by_index+0x5e/0x80 [ 2989.715660][ T253] fib6_nh_init+0x3d8/0x1580 [ 2989.715660][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2989.715660][ T253] ip6_route_add+0x1c/0x140 [ 2989.715660][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2989.715660][ T253] addrconf_add_dev+0xe2/0x170 [ 2989.715660][ T253] inet6_addr_add+0x12f/0xa40 [ 2989.715660][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2989.715660][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2989.715660][ T253] netlink_rcv_skb+0x130/0x360 [ 2989.715660][ T253] netlink_unicast+0x449/0x710 [ 2989.715660][ T253] netlink_sendmsg+0x723/0xbe0 [ 2989.715660][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2989.715660][ T253] ___sys_sendmsg+0xee/0x170 [ 2989.715660][ T253] __sys_sendmsg+0xcd/0x170 [ 2989.715660][ T253] do_syscall_64+0xc6/0x1e0 [ 2989.715660][ T253] [ 2989.717857][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2989.717857][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2989.717857][ T253] ipv6_find_idev+0x102/0x170 [ 2989.717857][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2989.717857][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2989.717857][ T253] netlink_rcv_skb+0x130/0x360 [ 2989.717857][ T253] netlink_unicast+0x449/0x710 [ 2989.717857][ T253] netlink_sendmsg+0x723/0xbe0 [ 2989.717857][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2989.717857][ T253] ___sys_sendmsg+0xee/0x170 [ 2989.717857][ T253] __sys_sendmsg+0xcd/0x170 [ 2989.717857][ T253] do_syscall_64+0xc6/0x1e0 [ 2989.717857][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2989.717857][ T253] [ 2989.719576][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2989.719576][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2989.719576][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2989.719576][ T253] ipv6_find_idev+0x102/0x170 [ 2989.719576][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2989.719576][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2989.719576][ T253] netlink_rcv_skb+0x130/0x360 [ 2989.719576][ T253] netlink_unicast+0x449/0x710 [ 2989.719576][ T253] netlink_sendmsg+0x723/0xbe0 [ 2989.719576][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2989.719576][ T253] ___sys_sendmsg+0xee/0x170 [ 2989.719576][ T253] __sys_sendmsg+0xcd/0x170 [ 2989.719576][ T253] do_syscall_64+0xc6/0x1e0 [ 2989.719576][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2989.719576][ T253] [ 2999.962318][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2999.962803][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2999.962803][ T253] dst_init+0x84/0x4a0 [ 2999.962803][ T253] dst_alloc+0x97/0x150 [ 2999.962803][ T253] ip6_dst_alloc+0x23/0x90 [ 2999.962803][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2999.962803][ T253] ip6_pol_route+0x56f/0x840 [ 2999.962803][ T253] fib6_rule_lookup+0x334/0x630 [ 2999.962803][ T253] ip6_route_output_flags+0x259/0x480 [ 2999.962803][ T253] inet6_rtm_getroute+0x980/0xf70 [ 2999.962803][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 2999.962803][ T253] netlink_rcv_skb+0x130/0x360 [ 2999.962803][ T253] netlink_unicast+0x449/0x710 [ 2999.962803][ T253] netlink_sendmsg+0x723/0xbe0 [ 2999.962803][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2999.962803][ T253] ___sys_sendmsg+0xee/0x170 [ 2999.962803][ T253] __sys_sendmsg+0xcd/0x170 [ 2999.962803][ T253] do_syscall_64+0xc6/0x1e0 [ 2999.962803][ T253] [ 2999.965007][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2999.965007][ T253] netdev_get_by_index+0x5e/0x80 [ 2999.965007][ T253] fib6_nh_init+0x3d8/0x1580 [ 2999.965007][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2999.965007][ T253] addrconf_f6i_alloc+0x265/0x560 [ 2999.965007][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2999.965007][ T253] addrconf_join_anycast+0x1c0/0x220 [ 2999.965007][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2999.965007][ T253] addrconf_dad_completed+0x12b/0xe20 [ 2999.965007][ T253] addrconf_dad_begin+0x310/0x670 [ 2999.965007][ T253] addrconf_dad_work+0x10b/0xab0 [ 2999.965007][ T253] process_one_work+0x84d/0x18a0 [ 2999.965007][ T253] worker_thread+0x587/0xd30 [ 2999.965007][ T253] kthread+0x28a/0x350 [ 2999.965007][ T253] ret_from_fork+0x31/0x70 [ 2999.965007][ T253] ret_from_fork_asm+0x1a/0x30 [ 2999.965007][ T253] [ 2999.967183][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2999.967183][ T253] netdev_get_by_index+0x5e/0x80 [ 2999.967183][ T253] fib6_nh_init+0x3d8/0x1580 [ 2999.967183][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2999.967183][ T253] ip6_route_add+0x1c/0x140 [ 2999.967183][ T253] addrconf_prefix_route+0x2a6/0x430 [ 2999.967183][ T253] inet6_addr_add+0x4f8/0xa40 [ 2999.967183][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2999.967183][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2999.967183][ T253] netlink_rcv_skb+0x130/0x360 [ 2999.967183][ T253] netlink_unicast+0x449/0x710 [ 2999.967183][ T253] netlink_sendmsg+0x723/0xbe0 [ 2999.967183][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2999.967183][ T253] ___sys_sendmsg+0xee/0x170 [ 2999.967183][ T253] __sys_sendmsg+0xcd/0x170 [ 2999.967183][ T253] do_syscall_64+0xc6/0x1e0 [ 2999.967183][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2999.967183][ T253] [ 2999.969419][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2999.969419][ T253] netdev_get_by_index+0x5e/0x80 [ 2999.969419][ T253] fib6_nh_init+0x3d8/0x1580 [ 2999.969419][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2999.969419][ T253] addrconf_f6i_alloc+0x315/0x560 [ 2999.969419][ T253] ipv6_add_addr+0x411/0x2000 [ 2999.969419][ T253] inet6_addr_add+0x30e/0xa40 [ 2999.969419][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2999.969419][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2999.969419][ T253] netlink_rcv_skb+0x130/0x360 [ 2999.969419][ T253] netlink_unicast+0x449/0x710 [ 2999.969419][ T253] netlink_sendmsg+0x723/0xbe0 [ 2999.969419][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2999.969419][ T253] ___sys_sendmsg+0xee/0x170 [ 2999.969419][ T253] __sys_sendmsg+0xcd/0x170 [ 2999.969419][ T253] do_syscall_64+0xc6/0x1e0 [ 2999.969419][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2999.969419][ T253] [ 2999.972180][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2999.972180][ T253] netdev_get_by_index+0x5e/0x80 [ 2999.972180][ T253] fib6_nh_init+0x3d8/0x1580 [ 2999.972180][ T253] ip6_route_info_create+0xf18/0x17d0 [ 2999.972180][ T253] ip6_route_add+0x1c/0x140 [ 2999.972180][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 2999.972180][ T253] addrconf_add_dev+0xe2/0x170 [ 2999.972180][ T253] inet6_addr_add+0x12f/0xa40 [ 2999.972180][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 2999.972180][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2999.972180][ T253] netlink_rcv_skb+0x130/0x360 [ 2999.972180][ T253] netlink_unicast+0x449/0x710 [ 2999.972180][ T253] netlink_sendmsg+0x723/0xbe0 [ 2999.972180][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2999.972180][ T253] ___sys_sendmsg+0xee/0x170 [ 2999.972180][ T253] __sys_sendmsg+0xcd/0x170 [ 2999.972180][ T253] do_syscall_64+0xc6/0x1e0 [ 2999.972180][ T253] [ 2999.974388][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2999.974388][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 2999.974388][ T253] ipv6_find_idev+0x102/0x170 [ 2999.974388][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2999.974388][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2999.974388][ T253] netlink_rcv_skb+0x130/0x360 [ 2999.974388][ T253] netlink_unicast+0x449/0x710 [ 2999.974388][ T253] netlink_sendmsg+0x723/0xbe0 [ 2999.974388][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2999.974388][ T253] ___sys_sendmsg+0xee/0x170 [ 2999.974388][ T253] __sys_sendmsg+0xcd/0x170 [ 2999.974388][ T253] do_syscall_64+0xc6/0x1e0 [ 2999.974388][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2999.974388][ T253] [ 2999.976123][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 2999.976123][ T253] neigh_parms_alloc+0x1e5/0x510 [ 2999.976123][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 2999.976123][ T253] ipv6_find_idev+0x102/0x170 [ 2999.976123][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 2999.976123][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2999.976123][ T253] netlink_rcv_skb+0x130/0x360 [ 2999.976123][ T253] netlink_unicast+0x449/0x710 [ 2999.976123][ T253] netlink_sendmsg+0x723/0xbe0 [ 2999.976123][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 2999.976123][ T253] ___sys_sendmsg+0xee/0x170 [ 2999.976123][ T253] __sys_sendmsg+0xcd/0x170 [ 2999.976123][ T253] do_syscall_64+0xc6/0x1e0 [ 2999.976123][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2999.976123][ T253] [ 3010.218319][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3010.218801][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3010.218801][ T253] dst_init+0x84/0x4a0 [ 3010.218801][ T253] dst_alloc+0x97/0x150 [ 3010.218801][ T253] ip6_dst_alloc+0x23/0x90 [ 3010.218801][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3010.218801][ T253] ip6_pol_route+0x56f/0x840 [ 3010.218801][ T253] fib6_rule_lookup+0x334/0x630 [ 3010.218801][ T253] ip6_route_output_flags+0x259/0x480 [ 3010.218801][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3010.218801][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3010.218801][ T253] netlink_rcv_skb+0x130/0x360 [ 3010.218801][ T253] netlink_unicast+0x449/0x710 [ 3010.218801][ T253] netlink_sendmsg+0x723/0xbe0 [ 3010.218801][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3010.218801][ T253] ___sys_sendmsg+0xee/0x170 [ 3010.218801][ T253] __sys_sendmsg+0xcd/0x170 [ 3010.218801][ T253] do_syscall_64+0xc6/0x1e0 [ 3010.218801][ T253] [ 3010.221004][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3010.221004][ T253] netdev_get_by_index+0x5e/0x80 [ 3010.221004][ T253] fib6_nh_init+0x3d8/0x1580 [ 3010.221004][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3010.221004][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3010.221004][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3010.221004][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3010.221004][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3010.221004][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3010.221004][ T253] addrconf_dad_begin+0x310/0x670 [ 3010.221004][ T253] addrconf_dad_work+0x10b/0xab0 [ 3010.221004][ T253] process_one_work+0x84d/0x18a0 [ 3010.221004][ T253] worker_thread+0x587/0xd30 [ 3010.221004][ T253] kthread+0x28a/0x350 [ 3010.221004][ T253] ret_from_fork+0x31/0x70 [ 3010.221004][ T253] ret_from_fork_asm+0x1a/0x30 [ 3010.221004][ T253] [ 3010.223148][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3010.223148][ T253] netdev_get_by_index+0x5e/0x80 [ 3010.223148][ T253] fib6_nh_init+0x3d8/0x1580 [ 3010.223148][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3010.223148][ T253] ip6_route_add+0x1c/0x140 [ 3010.223148][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3010.223148][ T253] inet6_addr_add+0x4f8/0xa40 [ 3010.223148][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3010.223148][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3010.223148][ T253] netlink_rcv_skb+0x130/0x360 [ 3010.223148][ T253] netlink_unicast+0x449/0x710 [ 3010.223148][ T253] netlink_sendmsg+0x723/0xbe0 [ 3010.223148][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3010.223148][ T253] ___sys_sendmsg+0xee/0x170 [ 3010.223148][ T253] __sys_sendmsg+0xcd/0x170 [ 3010.223148][ T253] do_syscall_64+0xc6/0x1e0 [ 3010.223148][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3010.223148][ T253] [ 3010.225781][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3010.225781][ T253] netdev_get_by_index+0x5e/0x80 [ 3010.225781][ T253] fib6_nh_init+0x3d8/0x1580 [ 3010.225781][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3010.225781][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3010.225781][ T253] ipv6_add_addr+0x411/0x2000 [ 3010.225781][ T253] inet6_addr_add+0x30e/0xa40 [ 3010.225781][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3010.225781][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3010.225781][ T253] netlink_rcv_skb+0x130/0x360 [ 3010.225781][ T253] netlink_unicast+0x449/0x710 [ 3010.225781][ T253] netlink_sendmsg+0x723/0xbe0 [ 3010.225781][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3010.225781][ T253] ___sys_sendmsg+0xee/0x170 [ 3010.225781][ T253] __sys_sendmsg+0xcd/0x170 [ 3010.225781][ T253] do_syscall_64+0xc6/0x1e0 [ 3010.225781][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3010.225781][ T253] [ 3010.228027][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3010.228027][ T253] netdev_get_by_index+0x5e/0x80 [ 3010.228027][ T253] fib6_nh_init+0x3d8/0x1580 [ 3010.228027][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3010.228027][ T253] ip6_route_add+0x1c/0x140 [ 3010.228027][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3010.228027][ T253] addrconf_add_dev+0xe2/0x170 [ 3010.228027][ T253] inet6_addr_add+0x12f/0xa40 [ 3010.228027][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3010.228027][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3010.228027][ T253] netlink_rcv_skb+0x130/0x360 [ 3010.228027][ T253] netlink_unicast+0x449/0x710 [ 3010.228027][ T253] netlink_sendmsg+0x723/0xbe0 [ 3010.228027][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3010.228027][ T253] ___sys_sendmsg+0xee/0x170 [ 3010.228027][ T253] __sys_sendmsg+0xcd/0x170 [ 3010.228027][ T253] do_syscall_64+0xc6/0x1e0 [ 3010.228027][ T253] [ 3010.230225][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3010.230225][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3010.230225][ T253] ipv6_find_idev+0x102/0x170 [ 3010.230225][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3010.230225][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3010.230225][ T253] netlink_rcv_skb+0x130/0x360 [ 3010.230225][ T253] netlink_unicast+0x449/0x710 [ 3010.230225][ T253] netlink_sendmsg+0x723/0xbe0 [ 3010.230225][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3010.230225][ T253] ___sys_sendmsg+0xee/0x170 [ 3010.230225][ T253] __sys_sendmsg+0xcd/0x170 [ 3010.230225][ T253] do_syscall_64+0xc6/0x1e0 [ 3010.230225][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3010.230225][ T253] [ 3010.231950][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3010.231950][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3010.231950][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3010.231950][ T253] ipv6_find_idev+0x102/0x170 [ 3010.231950][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3010.231950][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3010.231950][ T253] netlink_rcv_skb+0x130/0x360 [ 3010.231950][ T253] netlink_unicast+0x449/0x710 [ 3010.231950][ T253] netlink_sendmsg+0x723/0xbe0 [ 3010.231950][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3010.231950][ T253] ___sys_sendmsg+0xee/0x170 [ 3010.231950][ T253] __sys_sendmsg+0xcd/0x170 [ 3010.231950][ T253] do_syscall_64+0xc6/0x1e0 [ 3010.231950][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3010.231950][ T253] [ 3020.474299][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3020.474802][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3020.474802][ T253] dst_init+0x84/0x4a0 [ 3020.474802][ T253] dst_alloc+0x97/0x150 [ 3020.474802][ T253] ip6_dst_alloc+0x23/0x90 [ 3020.474802][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3020.474802][ T253] ip6_pol_route+0x56f/0x840 [ 3020.474802][ T253] fib6_rule_lookup+0x334/0x630 [ 3020.474802][ T253] ip6_route_output_flags+0x259/0x480 [ 3020.474802][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3020.474802][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3020.474802][ T253] netlink_rcv_skb+0x130/0x360 [ 3020.474802][ T253] netlink_unicast+0x449/0x710 [ 3020.474802][ T253] netlink_sendmsg+0x723/0xbe0 [ 3020.474802][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3020.474802][ T253] ___sys_sendmsg+0xee/0x170 [ 3020.474802][ T253] __sys_sendmsg+0xcd/0x170 [ 3020.474802][ T253] do_syscall_64+0xc6/0x1e0 [ 3020.474802][ T253] [ 3020.477024][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3020.477024][ T253] netdev_get_by_index+0x5e/0x80 [ 3020.477024][ T253] fib6_nh_init+0x3d8/0x1580 [ 3020.477024][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3020.477024][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3020.477024][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3020.477024][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3020.477024][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3020.477024][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3020.477024][ T253] addrconf_dad_begin+0x310/0x670 [ 3020.477024][ T253] addrconf_dad_work+0x10b/0xab0 [ 3020.477024][ T253] process_one_work+0x84d/0x18a0 [ 3020.477024][ T253] worker_thread+0x587/0xd30 [ 3020.477024][ T253] kthread+0x28a/0x350 [ 3020.477024][ T253] ret_from_fork+0x31/0x70 [ 3020.477024][ T253] ret_from_fork_asm+0x1a/0x30 [ 3020.477024][ T253] [ 3020.479171][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3020.479171][ T253] netdev_get_by_index+0x5e/0x80 [ 3020.479171][ T253] fib6_nh_init+0x3d8/0x1580 [ 3020.479171][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3020.479171][ T253] ip6_route_add+0x1c/0x140 [ 3020.479171][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3020.479171][ T253] inet6_addr_add+0x4f8/0xa40 [ 3020.479171][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3020.479171][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3020.479171][ T253] netlink_rcv_skb+0x130/0x360 [ 3020.479171][ T253] netlink_unicast+0x449/0x710 [ 3020.479171][ T253] netlink_sendmsg+0x723/0xbe0 [ 3020.479171][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3020.479171][ T253] ___sys_sendmsg+0xee/0x170 [ 3020.479171][ T253] __sys_sendmsg+0xcd/0x170 [ 3020.479171][ T253] do_syscall_64+0xc6/0x1e0 [ 3020.479171][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3020.479171][ T253] [ 3020.481416][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3020.481416][ T253] netdev_get_by_index+0x5e/0x80 [ 3020.481416][ T253] fib6_nh_init+0x3d8/0x1580 [ 3020.481416][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3020.481416][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3020.481416][ T253] ipv6_add_addr+0x411/0x2000 [ 3020.481416][ T253] inet6_addr_add+0x30e/0xa40 [ 3020.481416][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3020.481416][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3020.481416][ T253] netlink_rcv_skb+0x130/0x360 [ 3020.481416][ T253] netlink_unicast+0x449/0x710 [ 3020.481416][ T253] netlink_sendmsg+0x723/0xbe0 [ 3020.481416][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3020.481416][ T253] ___sys_sendmsg+0xee/0x170 [ 3020.481416][ T253] __sys_sendmsg+0xcd/0x170 [ 3020.481416][ T253] do_syscall_64+0xc6/0x1e0 [ 3020.481416][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3020.481416][ T253] [ 3020.483672][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3020.483672][ T253] netdev_get_by_index+0x5e/0x80 [ 3020.483672][ T253] fib6_nh_init+0x3d8/0x1580 [ 3020.483672][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3020.483672][ T253] ip6_route_add+0x1c/0x140 [ 3020.483672][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3020.483672][ T253] addrconf_add_dev+0xe2/0x170 [ 3020.483672][ T253] inet6_addr_add+0x12f/0xa40 [ 3020.483672][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3020.483672][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3020.483672][ T253] netlink_rcv_skb+0x130/0x360 [ 3020.483672][ T253] netlink_unicast+0x449/0x710 [ 3020.483672][ T253] netlink_sendmsg+0x723/0xbe0 [ 3020.483672][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3020.483672][ T253] ___sys_sendmsg+0xee/0x170 [ 3020.483672][ T253] __sys_sendmsg+0xcd/0x170 [ 3020.483672][ T253] do_syscall_64+0xc6/0x1e0 [ 3020.483672][ T253] [ 3020.485877][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3020.485877][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3020.485877][ T253] ipv6_find_idev+0x102/0x170 [ 3020.485877][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3020.485877][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3020.485877][ T253] netlink_rcv_skb+0x130/0x360 [ 3020.485877][ T253] netlink_unicast+0x449/0x710 [ 3020.485877][ T253] netlink_sendmsg+0x723/0xbe0 [ 3020.485877][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3020.485877][ T253] ___sys_sendmsg+0xee/0x170 [ 3020.485877][ T253] __sys_sendmsg+0xcd/0x170 [ 3020.485877][ T253] do_syscall_64+0xc6/0x1e0 [ 3020.485877][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3020.485877][ T253] [ 3020.487601][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3020.487601][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3020.487601][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3020.487601][ T253] ipv6_find_idev+0x102/0x170 [ 3020.487601][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3020.487601][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3020.487601][ T253] netlink_rcv_skb+0x130/0x360 [ 3020.487601][ T253] netlink_unicast+0x449/0x710 [ 3020.487601][ T253] netlink_sendmsg+0x723/0xbe0 [ 3020.487601][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3020.487601][ T253] ___sys_sendmsg+0xee/0x170 [ 3020.487601][ T253] __sys_sendmsg+0xcd/0x170 [ 3020.487601][ T253] do_syscall_64+0xc6/0x1e0 [ 3020.487601][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3020.487601][ T253] [ 3030.730304][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3030.730792][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3030.730792][ T253] dst_init+0x84/0x4a0 [ 3030.730792][ T253] dst_alloc+0x97/0x150 [ 3030.730792][ T253] ip6_dst_alloc+0x23/0x90 [ 3030.730792][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3030.730792][ T253] ip6_pol_route+0x56f/0x840 [ 3030.730792][ T253] fib6_rule_lookup+0x334/0x630 [ 3030.730792][ T253] ip6_route_output_flags+0x259/0x480 [ 3030.730792][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3030.730792][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3030.730792][ T253] netlink_rcv_skb+0x130/0x360 [ 3030.730792][ T253] netlink_unicast+0x449/0x710 [ 3030.730792][ T253] netlink_sendmsg+0x723/0xbe0 [ 3030.730792][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3030.730792][ T253] ___sys_sendmsg+0xee/0x170 [ 3030.730792][ T253] __sys_sendmsg+0xcd/0x170 [ 3030.730792][ T253] do_syscall_64+0xc6/0x1e0 [ 3030.730792][ T253] [ 3030.733026][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3030.733026][ T253] netdev_get_by_index+0x5e/0x80 [ 3030.733026][ T253] fib6_nh_init+0x3d8/0x1580 [ 3030.733026][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3030.733026][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3030.733026][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3030.733026][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3030.733026][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3030.733026][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3030.733026][ T253] addrconf_dad_begin+0x310/0x670 [ 3030.733026][ T253] addrconf_dad_work+0x10b/0xab0 [ 3030.733026][ T253] process_one_work+0x84d/0x18a0 [ 3030.733026][ T253] worker_thread+0x587/0xd30 [ 3030.733026][ T253] kthread+0x28a/0x350 [ 3030.733026][ T253] ret_from_fork+0x31/0x70 [ 3030.733026][ T253] ret_from_fork_asm+0x1a/0x30 [ 3030.733026][ T253] [ 3030.735208][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3030.735208][ T253] netdev_get_by_index+0x5e/0x80 [ 3030.735208][ T253] fib6_nh_init+0x3d8/0x1580 [ 3030.735208][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3030.735208][ T253] ip6_route_add+0x1c/0x140 [ 3030.735208][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3030.735208][ T253] inet6_addr_add+0x4f8/0xa40 [ 3030.735208][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3030.735208][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3030.735208][ T253] netlink_rcv_skb+0x130/0x360 [ 3030.735208][ T253] netlink_unicast+0x449/0x710 [ 3030.735208][ T253] netlink_sendmsg+0x723/0xbe0 [ 3030.735208][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3030.735208][ T253] ___sys_sendmsg+0xee/0x170 [ 3030.735208][ T253] __sys_sendmsg+0xcd/0x170 [ 3030.735208][ T253] do_syscall_64+0xc6/0x1e0 [ 3030.735208][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3030.735208][ T253] [ 3030.737472][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3030.737472][ T253] netdev_get_by_index+0x5e/0x80 [ 3030.737472][ T253] fib6_nh_init+0x3d8/0x1580 [ 3030.737472][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3030.737472][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3030.737472][ T253] ipv6_add_addr+0x411/0x2000 [ 3030.737472][ T253] inet6_addr_add+0x30e/0xa40 [ 3030.737472][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3030.737472][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3030.737472][ T253] netlink_rcv_skb+0x130/0x360 [ 3030.737472][ T253] netlink_unicast+0x449/0x710 [ 3030.737472][ T253] netlink_sendmsg+0x723/0xbe0 [ 3030.737472][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3030.737472][ T253] ___sys_sendmsg+0xee/0x170 [ 3030.737472][ T253] __sys_sendmsg+0xcd/0x170 [ 3030.737472][ T253] do_syscall_64+0xc6/0x1e0 [ 3030.737472][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3030.737472][ T253] [ 3030.739741][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3030.739741][ T253] netdev_get_by_index+0x5e/0x80 [ 3030.739741][ T253] fib6_nh_init+0x3d8/0x1580 [ 3030.739741][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3030.739741][ T253] ip6_route_add+0x1c/0x140 [ 3030.739741][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3030.739741][ T253] addrconf_add_dev+0xe2/0x170 [ 3030.739741][ T253] inet6_addr_add+0x12f/0xa40 [ 3030.739741][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3030.739741][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3030.739741][ T253] netlink_rcv_skb+0x130/0x360 [ 3030.739741][ T253] netlink_unicast+0x449/0x710 [ 3030.739741][ T253] netlink_sendmsg+0x723/0xbe0 [ 3030.739741][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3030.739741][ T253] ___sys_sendmsg+0xee/0x170 [ 3030.739741][ T253] __sys_sendmsg+0xcd/0x170 [ 3030.739741][ T253] do_syscall_64+0xc6/0x1e0 [ 3030.739741][ T253] [ 3030.741966][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3030.741966][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3030.741966][ T253] ipv6_find_idev+0x102/0x170 [ 3030.741966][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3030.741966][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3030.741966][ T253] netlink_rcv_skb+0x130/0x360 [ 3030.741966][ T253] netlink_unicast+0x449/0x710 [ 3030.741966][ T253] netlink_sendmsg+0x723/0xbe0 [ 3030.741966][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3030.741966][ T253] ___sys_sendmsg+0xee/0x170 [ 3030.741966][ T253] __sys_sendmsg+0xcd/0x170 [ 3030.741966][ T253] do_syscall_64+0xc6/0x1e0 [ 3030.741966][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3030.741966][ T253] [ 3030.743705][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3030.743705][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3030.743705][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3030.743705][ T253] ipv6_find_idev+0x102/0x170 [ 3030.743705][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3030.743705][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3030.743705][ T253] netlink_rcv_skb+0x130/0x360 [ 3030.743705][ T253] netlink_unicast+0x449/0x710 [ 3030.743705][ T253] netlink_sendmsg+0x723/0xbe0 [ 3030.743705][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3030.743705][ T253] ___sys_sendmsg+0xee/0x170 [ 3030.743705][ T253] __sys_sendmsg+0xcd/0x170 [ 3030.743705][ T253] do_syscall_64+0xc6/0x1e0 [ 3030.743705][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3030.743705][ T253] [ 3040.986235][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3040.986731][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3040.986731][ T253] dst_init+0x84/0x4a0 [ 3040.986731][ T253] dst_alloc+0x97/0x150 [ 3040.986731][ T253] ip6_dst_alloc+0x23/0x90 [ 3040.986731][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3040.986731][ T253] ip6_pol_route+0x56f/0x840 [ 3040.986731][ T253] fib6_rule_lookup+0x334/0x630 [ 3040.986731][ T253] ip6_route_output_flags+0x259/0x480 [ 3040.986731][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3040.986731][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3040.986731][ T253] netlink_rcv_skb+0x130/0x360 [ 3040.986731][ T253] netlink_unicast+0x449/0x710 [ 3040.986731][ T253] netlink_sendmsg+0x723/0xbe0 [ 3040.986731][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3040.986731][ T253] ___sys_sendmsg+0xee/0x170 [ 3040.986731][ T253] __sys_sendmsg+0xcd/0x170 [ 3040.986731][ T253] do_syscall_64+0xc6/0x1e0 [ 3040.986731][ T253] [ 3040.988953][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3040.988953][ T253] netdev_get_by_index+0x5e/0x80 [ 3040.988953][ T253] fib6_nh_init+0x3d8/0x1580 [ 3040.988953][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3040.988953][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3040.988953][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3040.988953][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3040.988953][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3040.988953][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3040.988953][ T253] addrconf_dad_begin+0x310/0x670 [ 3040.988953][ T253] addrconf_dad_work+0x10b/0xab0 [ 3040.988953][ T253] process_one_work+0x84d/0x18a0 [ 3040.988953][ T253] worker_thread+0x587/0xd30 [ 3040.988953][ T253] kthread+0x28a/0x350 [ 3040.988953][ T253] ret_from_fork+0x31/0x70 [ 3040.988953][ T253] ret_from_fork_asm+0x1a/0x30 [ 3040.988953][ T253] [ 3040.991113][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3040.991113][ T253] netdev_get_by_index+0x5e/0x80 [ 3040.991113][ T253] fib6_nh_init+0x3d8/0x1580 [ 3040.991113][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3040.991113][ T253] ip6_route_add+0x1c/0x140 [ 3040.991113][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3040.991113][ T253] inet6_addr_add+0x4f8/0xa40 [ 3040.991113][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3040.991113][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3040.991113][ T253] netlink_rcv_skb+0x130/0x360 [ 3040.991113][ T253] netlink_unicast+0x449/0x710 [ 3040.991113][ T253] netlink_sendmsg+0x723/0xbe0 [ 3040.991113][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3040.991113][ T253] ___sys_sendmsg+0xee/0x170 [ 3040.991113][ T253] __sys_sendmsg+0xcd/0x170 [ 3040.991113][ T253] do_syscall_64+0xc6/0x1e0 [ 3040.991113][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3040.991113][ T253] [ 3040.993396][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3040.993396][ T253] netdev_get_by_index+0x5e/0x80 [ 3040.993396][ T253] fib6_nh_init+0x3d8/0x1580 [ 3040.993396][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3040.993396][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3040.993396][ T253] ipv6_add_addr+0x411/0x2000 [ 3040.993396][ T253] inet6_addr_add+0x30e/0xa40 [ 3040.993396][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3040.993396][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3040.993396][ T253] netlink_rcv_skb+0x130/0x360 [ 3040.993396][ T253] netlink_unicast+0x449/0x710 [ 3040.993396][ T253] netlink_sendmsg+0x723/0xbe0 [ 3040.993396][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3040.993396][ T253] ___sys_sendmsg+0xee/0x170 [ 3040.993396][ T253] __sys_sendmsg+0xcd/0x170 [ 3040.993396][ T253] do_syscall_64+0xc6/0x1e0 [ 3040.993396][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3040.993396][ T253] [ 3040.995674][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3040.995674][ T253] netdev_get_by_index+0x5e/0x80 [ 3040.995674][ T253] fib6_nh_init+0x3d8/0x1580 [ 3040.995674][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3040.995674][ T253] ip6_route_add+0x1c/0x140 [ 3040.995674][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3040.995674][ T253] addrconf_add_dev+0xe2/0x170 [ 3040.995674][ T253] inet6_addr_add+0x12f/0xa40 [ 3040.995674][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3040.995674][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3040.995674][ T253] netlink_rcv_skb+0x130/0x360 [ 3040.995674][ T253] netlink_unicast+0x449/0x710 [ 3040.995674][ T253] netlink_sendmsg+0x723/0xbe0 [ 3040.995674][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3040.995674][ T253] ___sys_sendmsg+0xee/0x170 [ 3040.995674][ T253] __sys_sendmsg+0xcd/0x170 [ 3040.995674][ T253] do_syscall_64+0xc6/0x1e0 [ 3040.995674][ T253] [ 3040.997896][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3040.997896][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3040.997896][ T253] ipv6_find_idev+0x102/0x170 [ 3040.997896][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3040.997896][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3040.997896][ T253] netlink_rcv_skb+0x130/0x360 [ 3040.997896][ T253] netlink_unicast+0x449/0x710 [ 3040.997896][ T253] netlink_sendmsg+0x723/0xbe0 [ 3040.997896][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3040.997896][ T253] ___sys_sendmsg+0xee/0x170 [ 3040.997896][ T253] __sys_sendmsg+0xcd/0x170 [ 3040.997896][ T253] do_syscall_64+0xc6/0x1e0 [ 3040.997896][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3040.997896][ T253] [ 3040.999638][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3040.999638][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3040.999638][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3040.999638][ T253] ipv6_find_idev+0x102/0x170 [ 3040.999638][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3040.999638][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3040.999638][ T253] netlink_rcv_skb+0x130/0x360 [ 3040.999638][ T253] netlink_unicast+0x449/0x710 [ 3040.999638][ T253] netlink_sendmsg+0x723/0xbe0 [ 3040.999638][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3040.999638][ T253] ___sys_sendmsg+0xee/0x170 [ 3040.999638][ T253] __sys_sendmsg+0xcd/0x170 [ 3040.999638][ T253] do_syscall_64+0xc6/0x1e0 [ 3040.999638][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3040.999638][ T253] [ 3051.242324][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3051.242820][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3051.242820][ T253] dst_init+0x84/0x4a0 [ 3051.242820][ T253] dst_alloc+0x97/0x150 [ 3051.242820][ T253] ip6_dst_alloc+0x23/0x90 [ 3051.242820][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3051.242820][ T253] ip6_pol_route+0x56f/0x840 [ 3051.242820][ T253] fib6_rule_lookup+0x334/0x630 [ 3051.242820][ T253] ip6_route_output_flags+0x259/0x480 [ 3051.242820][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3051.242820][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3051.242820][ T253] netlink_rcv_skb+0x130/0x360 [ 3051.242820][ T253] netlink_unicast+0x449/0x710 [ 3051.242820][ T253] netlink_sendmsg+0x723/0xbe0 [ 3051.242820][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3051.242820][ T253] ___sys_sendmsg+0xee/0x170 [ 3051.242820][ T253] __sys_sendmsg+0xcd/0x170 [ 3051.242820][ T253] do_syscall_64+0xc6/0x1e0 [ 3051.242820][ T253] [ 3051.245054][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3051.245054][ T253] netdev_get_by_index+0x5e/0x80 [ 3051.245054][ T253] fib6_nh_init+0x3d8/0x1580 [ 3051.245054][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3051.245054][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3051.245054][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3051.245054][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3051.245054][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3051.245054][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3051.245054][ T253] addrconf_dad_begin+0x310/0x670 [ 3051.245054][ T253] addrconf_dad_work+0x10b/0xab0 [ 3051.245054][ T253] process_one_work+0x84d/0x18a0 [ 3051.245054][ T253] worker_thread+0x587/0xd30 [ 3051.245054][ T253] kthread+0x28a/0x350 [ 3051.245054][ T253] ret_from_fork+0x31/0x70 [ 3051.245054][ T253] ret_from_fork_asm+0x1a/0x30 [ 3051.245054][ T253] [ 3051.247224][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3051.247224][ T253] netdev_get_by_index+0x5e/0x80 [ 3051.247224][ T253] fib6_nh_init+0x3d8/0x1580 [ 3051.247224][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3051.247224][ T253] ip6_route_add+0x1c/0x140 [ 3051.247224][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3051.247224][ T253] inet6_addr_add+0x4f8/0xa40 [ 3051.247224][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3051.247224][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3051.247224][ T253] netlink_rcv_skb+0x130/0x360 [ 3051.247224][ T253] netlink_unicast+0x449/0x710 [ 3051.247224][ T253] netlink_sendmsg+0x723/0xbe0 [ 3051.247224][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3051.247224][ T253] ___sys_sendmsg+0xee/0x170 [ 3051.247224][ T253] __sys_sendmsg+0xcd/0x170 [ 3051.247224][ T253] do_syscall_64+0xc6/0x1e0 [ 3051.247224][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3051.247224][ T253] [ 3051.249512][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3051.249512][ T253] netdev_get_by_index+0x5e/0x80 [ 3051.249512][ T253] fib6_nh_init+0x3d8/0x1580 [ 3051.249512][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3051.249512][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3051.249512][ T253] ipv6_add_addr+0x411/0x2000 [ 3051.249512][ T253] inet6_addr_add+0x30e/0xa40 [ 3051.249512][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3051.249512][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3051.249512][ T253] netlink_rcv_skb+0x130/0x360 [ 3051.249512][ T253] netlink_unicast+0x449/0x710 [ 3051.249512][ T253] netlink_sendmsg+0x723/0xbe0 [ 3051.249512][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3051.249512][ T253] ___sys_sendmsg+0xee/0x170 [ 3051.249512][ T253] __sys_sendmsg+0xcd/0x170 [ 3051.249512][ T253] do_syscall_64+0xc6/0x1e0 [ 3051.249512][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3051.249512][ T253] [ 3051.251781][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3051.251781][ T253] netdev_get_by_index+0x5e/0x80 [ 3051.251781][ T253] fib6_nh_init+0x3d8/0x1580 [ 3051.251781][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3051.251781][ T253] ip6_route_add+0x1c/0x140 [ 3051.251781][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3051.251781][ T253] addrconf_add_dev+0xe2/0x170 [ 3051.251781][ T253] inet6_addr_add+0x12f/0xa40 [ 3051.251781][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3051.251781][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3051.251781][ T253] netlink_rcv_skb+0x130/0x360 [ 3051.251781][ T253] netlink_unicast+0x449/0x710 [ 3051.251781][ T253] netlink_sendmsg+0x723/0xbe0 [ 3051.251781][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3051.251781][ T253] ___sys_sendmsg+0xee/0x170 [ 3051.251781][ T253] __sys_sendmsg+0xcd/0x170 [ 3051.251781][ T253] do_syscall_64+0xc6/0x1e0 [ 3051.251781][ T253] [ 3051.254003][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3051.254003][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3051.254003][ T253] ipv6_find_idev+0x102/0x170 [ 3051.254003][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3051.254003][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3051.254003][ T253] netlink_rcv_skb+0x130/0x360 [ 3051.254003][ T253] netlink_unicast+0x449/0x710 [ 3051.254003][ T253] netlink_sendmsg+0x723/0xbe0 [ 3051.254003][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3051.254003][ T253] ___sys_sendmsg+0xee/0x170 [ 3051.254003][ T253] __sys_sendmsg+0xcd/0x170 [ 3051.254003][ T253] do_syscall_64+0xc6/0x1e0 [ 3051.254003][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3051.254003][ T253] [ 3051.255751][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3051.255751][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3051.255751][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3051.255751][ T253] ipv6_find_idev+0x102/0x170 [ 3051.255751][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3051.255751][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3051.255751][ T253] netlink_rcv_skb+0x130/0x360 [ 3051.255751][ T253] netlink_unicast+0x449/0x710 [ 3051.255751][ T253] netlink_sendmsg+0x723/0xbe0 [ 3051.255751][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3051.255751][ T253] ___sys_sendmsg+0xee/0x170 [ 3051.255751][ T253] __sys_sendmsg+0xcd/0x170 [ 3051.255751][ T253] do_syscall_64+0xc6/0x1e0 [ 3051.255751][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3051.255751][ T253] [ 3061.498300][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3061.498788][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3061.498788][ T253] dst_init+0x84/0x4a0 [ 3061.498788][ T253] dst_alloc+0x97/0x150 [ 3061.498788][ T253] ip6_dst_alloc+0x23/0x90 [ 3061.498788][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3061.498788][ T253] ip6_pol_route+0x56f/0x840 [ 3061.498788][ T253] fib6_rule_lookup+0x334/0x630 [ 3061.498788][ T253] ip6_route_output_flags+0x259/0x480 [ 3061.498788][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3061.498788][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3061.498788][ T253] netlink_rcv_skb+0x130/0x360 [ 3061.498788][ T253] netlink_unicast+0x449/0x710 [ 3061.498788][ T253] netlink_sendmsg+0x723/0xbe0 [ 3061.498788][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3061.498788][ T253] ___sys_sendmsg+0xee/0x170 [ 3061.498788][ T253] __sys_sendmsg+0xcd/0x170 [ 3061.498788][ T253] do_syscall_64+0xc6/0x1e0 [ 3061.498788][ T253] [ 3061.501030][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3061.501030][ T253] netdev_get_by_index+0x5e/0x80 [ 3061.501030][ T253] fib6_nh_init+0x3d8/0x1580 [ 3061.501030][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3061.501030][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3061.501030][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3061.501030][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3061.501030][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3061.501030][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3061.501030][ T253] addrconf_dad_begin+0x310/0x670 [ 3061.501030][ T253] addrconf_dad_work+0x10b/0xab0 [ 3061.501030][ T253] process_one_work+0x84d/0x18a0 [ 3061.501030][ T253] worker_thread+0x587/0xd30 [ 3061.501030][ T253] kthread+0x28a/0x350 [ 3061.501030][ T253] ret_from_fork+0x31/0x70 [ 3061.501030][ T253] ret_from_fork_asm+0x1a/0x30 [ 3061.501030][ T253] [ 3061.503194][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3061.503194][ T253] netdev_get_by_index+0x5e/0x80 [ 3061.503194][ T253] fib6_nh_init+0x3d8/0x1580 [ 3061.503194][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3061.503194][ T253] ip6_route_add+0x1c/0x140 [ 3061.503194][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3061.503194][ T253] inet6_addr_add+0x4f8/0xa40 [ 3061.503194][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3061.503194][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3061.503194][ T253] netlink_rcv_skb+0x130/0x360 [ 3061.503194][ T253] netlink_unicast+0x449/0x710 [ 3061.503194][ T253] netlink_sendmsg+0x723/0xbe0 [ 3061.503194][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3061.503194][ T253] ___sys_sendmsg+0xee/0x170 [ 3061.503194][ T253] __sys_sendmsg+0xcd/0x170 [ 3061.503194][ T253] do_syscall_64+0xc6/0x1e0 [ 3061.503194][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3061.503194][ T253] [ 3061.505475][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3061.505475][ T253] netdev_get_by_index+0x5e/0x80 [ 3061.505475][ T253] fib6_nh_init+0x3d8/0x1580 [ 3061.505475][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3061.505475][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3061.505475][ T253] ipv6_add_addr+0x411/0x2000 [ 3061.505475][ T253] inet6_addr_add+0x30e/0xa40 [ 3061.505475][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3061.505475][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3061.505475][ T253] netlink_rcv_skb+0x130/0x360 [ 3061.505475][ T253] netlink_unicast+0x449/0x710 [ 3061.505475][ T253] netlink_sendmsg+0x723/0xbe0 [ 3061.505475][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3061.505475][ T253] ___sys_sendmsg+0xee/0x170 [ 3061.505475][ T253] __sys_sendmsg+0xcd/0x170 [ 3061.505475][ T253] do_syscall_64+0xc6/0x1e0 [ 3061.505475][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3061.505475][ T253] [ 3061.507740][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3061.507740][ T253] netdev_get_by_index+0x5e/0x80 [ 3061.507740][ T253] fib6_nh_init+0x3d8/0x1580 [ 3061.507740][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3061.507740][ T253] ip6_route_add+0x1c/0x140 [ 3061.507740][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3061.507740][ T253] addrconf_add_dev+0xe2/0x170 [ 3061.507740][ T253] inet6_addr_add+0x12f/0xa40 [ 3061.507740][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3061.507740][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3061.507740][ T253] netlink_rcv_skb+0x130/0x360 [ 3061.507740][ T253] netlink_unicast+0x449/0x710 [ 3061.507740][ T253] netlink_sendmsg+0x723/0xbe0 [ 3061.507740][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3061.507740][ T253] ___sys_sendmsg+0xee/0x170 [ 3061.507740][ T253] __sys_sendmsg+0xcd/0x170 [ 3061.507740][ T253] do_syscall_64+0xc6/0x1e0 [ 3061.507740][ T253] [ 3061.509974][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3061.509974][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3061.509974][ T253] ipv6_find_idev+0x102/0x170 [ 3061.509974][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3061.509974][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3061.509974][ T253] netlink_rcv_skb+0x130/0x360 [ 3061.509974][ T253] netlink_unicast+0x449/0x710 [ 3061.509974][ T253] netlink_sendmsg+0x723/0xbe0 [ 3061.509974][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3061.509974][ T253] ___sys_sendmsg+0xee/0x170 [ 3061.509974][ T253] __sys_sendmsg+0xcd/0x170 [ 3061.509974][ T253] do_syscall_64+0xc6/0x1e0 [ 3061.509974][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3061.509974][ T253] [ 3061.511732][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3061.511732][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3061.511732][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3061.511732][ T253] ipv6_find_idev+0x102/0x170 [ 3061.511732][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3061.511732][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3061.511732][ T253] netlink_rcv_skb+0x130/0x360 [ 3061.511732][ T253] netlink_unicast+0x449/0x710 [ 3061.511732][ T253] netlink_sendmsg+0x723/0xbe0 [ 3061.511732][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3061.511732][ T253] ___sys_sendmsg+0xee/0x170 [ 3061.511732][ T253] __sys_sendmsg+0xcd/0x170 [ 3061.511732][ T253] do_syscall_64+0xc6/0x1e0 [ 3061.511732][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3061.511732][ T253] [ 3071.754306][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3071.754806][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3071.754806][ T253] dst_init+0x84/0x4a0 [ 3071.754806][ T253] dst_alloc+0x97/0x150 [ 3071.754806][ T253] ip6_dst_alloc+0x23/0x90 [ 3071.754806][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3071.754806][ T253] ip6_pol_route+0x56f/0x840 [ 3071.754806][ T253] fib6_rule_lookup+0x334/0x630 [ 3071.754806][ T253] ip6_route_output_flags+0x259/0x480 [ 3071.754806][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3071.754806][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3071.754806][ T253] netlink_rcv_skb+0x130/0x360 [ 3071.754806][ T253] netlink_unicast+0x449/0x710 [ 3071.754806][ T253] netlink_sendmsg+0x723/0xbe0 [ 3071.754806][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3071.754806][ T253] ___sys_sendmsg+0xee/0x170 [ 3071.754806][ T253] __sys_sendmsg+0xcd/0x170 [ 3071.754806][ T253] do_syscall_64+0xc6/0x1e0 [ 3071.754806][ T253] [ 3071.757045][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3071.757045][ T253] netdev_get_by_index+0x5e/0x80 [ 3071.757045][ T253] fib6_nh_init+0x3d8/0x1580 [ 3071.757045][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3071.757045][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3071.757045][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3071.757045][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3071.757045][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3071.757045][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3071.757045][ T253] addrconf_dad_begin+0x310/0x670 [ 3071.757045][ T253] addrconf_dad_work+0x10b/0xab0 [ 3071.757045][ T253] process_one_work+0x84d/0x18a0 [ 3071.757045][ T253] worker_thread+0x587/0xd30 [ 3071.757045][ T253] kthread+0x28a/0x350 [ 3071.757045][ T253] ret_from_fork+0x31/0x70 [ 3071.757045][ T253] ret_from_fork_asm+0x1a/0x30 [ 3071.757045][ T253] [ 3071.759211][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3071.759211][ T253] netdev_get_by_index+0x5e/0x80 [ 3071.759211][ T253] fib6_nh_init+0x3d8/0x1580 [ 3071.759211][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3071.759211][ T253] ip6_route_add+0x1c/0x140 [ 3071.759211][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3071.759211][ T253] inet6_addr_add+0x4f8/0xa40 [ 3071.759211][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3071.759211][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3071.759211][ T253] netlink_rcv_skb+0x130/0x360 [ 3071.759211][ T253] netlink_unicast+0x449/0x710 [ 3071.759211][ T253] netlink_sendmsg+0x723/0xbe0 [ 3071.759211][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3071.759211][ T253] ___sys_sendmsg+0xee/0x170 [ 3071.759211][ T253] __sys_sendmsg+0xcd/0x170 [ 3071.759211][ T253] do_syscall_64+0xc6/0x1e0 [ 3071.759211][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3071.759211][ T253] [ 3071.761478][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3071.761478][ T253] netdev_get_by_index+0x5e/0x80 [ 3071.761478][ T253] fib6_nh_init+0x3d8/0x1580 [ 3071.761478][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3071.761478][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3071.761478][ T253] ipv6_add_addr+0x411/0x2000 [ 3071.761478][ T253] inet6_addr_add+0x30e/0xa40 [ 3071.761478][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3071.761478][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3071.761478][ T253] netlink_rcv_skb+0x130/0x360 [ 3071.761478][ T253] netlink_unicast+0x449/0x710 [ 3071.761478][ T253] netlink_sendmsg+0x723/0xbe0 [ 3071.761478][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3071.761478][ T253] ___sys_sendmsg+0xee/0x170 [ 3071.761478][ T253] __sys_sendmsg+0xcd/0x170 [ 3071.761478][ T253] do_syscall_64+0xc6/0x1e0 [ 3071.761478][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3071.761478][ T253] [ 3071.763746][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3071.763746][ T253] netdev_get_by_index+0x5e/0x80 [ 3071.763746][ T253] fib6_nh_init+0x3d8/0x1580 [ 3071.763746][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3071.763746][ T253] ip6_route_add+0x1c/0x140 [ 3071.763746][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3071.763746][ T253] addrconf_add_dev+0xe2/0x170 [ 3071.763746][ T253] inet6_addr_add+0x12f/0xa40 [ 3071.763746][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3071.763746][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3071.763746][ T253] netlink_rcv_skb+0x130/0x360 [ 3071.763746][ T253] netlink_unicast+0x449/0x710 [ 3071.763746][ T253] netlink_sendmsg+0x723/0xbe0 [ 3071.763746][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3071.763746][ T253] ___sys_sendmsg+0xee/0x170 [ 3071.763746][ T253] __sys_sendmsg+0xcd/0x170 [ 3071.763746][ T253] do_syscall_64+0xc6/0x1e0 [ 3071.763746][ T253] [ 3071.765984][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3071.765984][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3071.765984][ T253] ipv6_find_idev+0x102/0x170 [ 3071.765984][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3071.765984][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3071.765984][ T253] netlink_rcv_skb+0x130/0x360 [ 3071.765984][ T253] netlink_unicast+0x449/0x710 [ 3071.765984][ T253] netlink_sendmsg+0x723/0xbe0 [ 3071.765984][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3071.765984][ T253] ___sys_sendmsg+0xee/0x170 [ 3071.765984][ T253] __sys_sendmsg+0xcd/0x170 [ 3071.765984][ T253] do_syscall_64+0xc6/0x1e0 [ 3071.765984][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3071.765984][ T253] [ 3071.767729][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3071.767729][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3071.767729][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3071.767729][ T253] ipv6_find_idev+0x102/0x170 [ 3071.767729][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3071.767729][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3071.767729][ T253] netlink_rcv_skb+0x130/0x360 [ 3071.767729][ T253] netlink_unicast+0x449/0x710 [ 3071.767729][ T253] netlink_sendmsg+0x723/0xbe0 [ 3071.767729][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3071.767729][ T253] ___sys_sendmsg+0xee/0x170 [ 3071.767729][ T253] __sys_sendmsg+0xcd/0x170 [ 3071.767729][ T253] do_syscall_64+0xc6/0x1e0 [ 3071.767729][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3071.767729][ T253] [ 3082.010293][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3082.010794][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3082.010794][ T253] dst_init+0x84/0x4a0 [ 3082.010794][ T253] dst_alloc+0x97/0x150 [ 3082.010794][ T253] ip6_dst_alloc+0x23/0x90 [ 3082.010794][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3082.010794][ T253] ip6_pol_route+0x56f/0x840 [ 3082.010794][ T253] fib6_rule_lookup+0x334/0x630 [ 3082.010794][ T253] ip6_route_output_flags+0x259/0x480 [ 3082.010794][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3082.010794][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3082.010794][ T253] netlink_rcv_skb+0x130/0x360 [ 3082.010794][ T253] netlink_unicast+0x449/0x710 [ 3082.010794][ T253] netlink_sendmsg+0x723/0xbe0 [ 3082.010794][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3082.010794][ T253] ___sys_sendmsg+0xee/0x170 [ 3082.010794][ T253] __sys_sendmsg+0xcd/0x170 [ 3082.010794][ T253] do_syscall_64+0xc6/0x1e0 [ 3082.010794][ T253] [ 3082.013015][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3082.013015][ T253] netdev_get_by_index+0x5e/0x80 [ 3082.013015][ T253] fib6_nh_init+0x3d8/0x1580 [ 3082.013015][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3082.013015][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3082.013015][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3082.013015][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3082.013015][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3082.013015][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3082.013015][ T253] addrconf_dad_begin+0x310/0x670 [ 3082.013015][ T253] addrconf_dad_work+0x10b/0xab0 [ 3082.013015][ T253] process_one_work+0x84d/0x18a0 [ 3082.013015][ T253] worker_thread+0x587/0xd30 [ 3082.013015][ T253] kthread+0x28a/0x350 [ 3082.013015][ T253] ret_from_fork+0x31/0x70 [ 3082.013015][ T253] ret_from_fork_asm+0x1a/0x30 [ 3082.013015][ T253] [ 3082.015195][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3082.015195][ T253] netdev_get_by_index+0x5e/0x80 [ 3082.015195][ T253] fib6_nh_init+0x3d8/0x1580 [ 3082.015195][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3082.015195][ T253] ip6_route_add+0x1c/0x140 [ 3082.015195][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3082.015195][ T253] inet6_addr_add+0x4f8/0xa40 [ 3082.015195][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3082.015195][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3082.015195][ T253] netlink_rcv_skb+0x130/0x360 [ 3082.015195][ T253] netlink_unicast+0x449/0x710 [ 3082.015195][ T253] netlink_sendmsg+0x723/0xbe0 [ 3082.015195][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3082.015195][ T253] ___sys_sendmsg+0xee/0x170 [ 3082.015195][ T253] __sys_sendmsg+0xcd/0x170 [ 3082.015195][ T253] do_syscall_64+0xc6/0x1e0 [ 3082.015195][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3082.015195][ T253] [ 3082.017461][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3082.017461][ T253] netdev_get_by_index+0x5e/0x80 [ 3082.017461][ T253] fib6_nh_init+0x3d8/0x1580 [ 3082.017461][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3082.017461][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3082.017461][ T253] ipv6_add_addr+0x411/0x2000 [ 3082.017461][ T253] inet6_addr_add+0x30e/0xa40 [ 3082.017461][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3082.017461][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3082.017461][ T253] netlink_rcv_skb+0x130/0x360 [ 3082.017461][ T253] netlink_unicast+0x449/0x710 [ 3082.017461][ T253] netlink_sendmsg+0x723/0xbe0 [ 3082.017461][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3082.017461][ T253] ___sys_sendmsg+0xee/0x170 [ 3082.017461][ T253] __sys_sendmsg+0xcd/0x170 [ 3082.017461][ T253] do_syscall_64+0xc6/0x1e0 [ 3082.017461][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3082.017461][ T253] [ 3082.019726][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3082.019726][ T253] netdev_get_by_index+0x5e/0x80 [ 3082.019726][ T253] fib6_nh_init+0x3d8/0x1580 [ 3082.019726][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3082.019726][ T253] ip6_route_add+0x1c/0x140 [ 3082.019726][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3082.019726][ T253] addrconf_add_dev+0xe2/0x170 [ 3082.019726][ T253] inet6_addr_add+0x12f/0xa40 [ 3082.019726][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3082.019726][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3082.019726][ T253] netlink_rcv_skb+0x130/0x360 [ 3082.019726][ T253] netlink_unicast+0x449/0x710 [ 3082.019726][ T253] netlink_sendmsg+0x723/0xbe0 [ 3082.019726][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3082.019726][ T253] ___sys_sendmsg+0xee/0x170 [ 3082.019726][ T253] __sys_sendmsg+0xcd/0x170 [ 3082.019726][ T253] do_syscall_64+0xc6/0x1e0 [ 3082.019726][ T253] [ 3082.021948][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3082.021948][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3082.021948][ T253] ipv6_find_idev+0x102/0x170 [ 3082.021948][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3082.021948][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3082.021948][ T253] netlink_rcv_skb+0x130/0x360 [ 3082.021948][ T253] netlink_unicast+0x449/0x710 [ 3082.021948][ T253] netlink_sendmsg+0x723/0xbe0 [ 3082.021948][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3082.021948][ T253] ___sys_sendmsg+0xee/0x170 [ 3082.021948][ T253] __sys_sendmsg+0xcd/0x170 [ 3082.021948][ T253] do_syscall_64+0xc6/0x1e0 [ 3082.021948][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3082.021948][ T253] [ 3082.023691][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3082.023691][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3082.023691][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3082.023691][ T253] ipv6_find_idev+0x102/0x170 [ 3082.023691][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3082.023691][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3082.023691][ T253] netlink_rcv_skb+0x130/0x360 [ 3082.023691][ T253] netlink_unicast+0x449/0x710 [ 3082.023691][ T253] netlink_sendmsg+0x723/0xbe0 [ 3082.023691][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3082.023691][ T253] ___sys_sendmsg+0xee/0x170 [ 3082.023691][ T253] __sys_sendmsg+0xcd/0x170 [ 3082.023691][ T253] do_syscall_64+0xc6/0x1e0 [ 3082.023691][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3082.023691][ T253] [ 3092.266315][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3092.266829][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3092.266829][ T253] dst_init+0x84/0x4a0 [ 3092.266829][ T253] dst_alloc+0x97/0x150 [ 3092.266829][ T253] ip6_dst_alloc+0x23/0x90 [ 3092.266829][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3092.266829][ T253] ip6_pol_route+0x56f/0x840 [ 3092.266829][ T253] fib6_rule_lookup+0x334/0x630 [ 3092.266829][ T253] ip6_route_output_flags+0x259/0x480 [ 3092.266829][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3092.266829][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3092.266829][ T253] netlink_rcv_skb+0x130/0x360 [ 3092.266829][ T253] netlink_unicast+0x449/0x710 [ 3092.266829][ T253] netlink_sendmsg+0x723/0xbe0 [ 3092.266829][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3092.266829][ T253] ___sys_sendmsg+0xee/0x170 [ 3092.266829][ T253] __sys_sendmsg+0xcd/0x170 [ 3092.266829][ T253] do_syscall_64+0xc6/0x1e0 [ 3092.266829][ T253] [ 3092.269057][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3092.269057][ T253] netdev_get_by_index+0x5e/0x80 [ 3092.269057][ T253] fib6_nh_init+0x3d8/0x1580 [ 3092.269057][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3092.269057][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3092.269057][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3092.269057][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3092.269057][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3092.269057][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3092.269057][ T253] addrconf_dad_begin+0x310/0x670 [ 3092.269057][ T253] addrconf_dad_work+0x10b/0xab0 [ 3092.269057][ T253] process_one_work+0x84d/0x18a0 [ 3092.269057][ T253] worker_thread+0x587/0xd30 [ 3092.269057][ T253] kthread+0x28a/0x350 [ 3092.269057][ T253] ret_from_fork+0x31/0x70 [ 3092.269057][ T253] ret_from_fork_asm+0x1a/0x30 [ 3092.269057][ T253] [ 3092.271358][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3092.271358][ T253] netdev_get_by_index+0x5e/0x80 [ 3092.271358][ T253] fib6_nh_init+0x3d8/0x1580 [ 3092.271358][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3092.271358][ T253] ip6_route_add+0x1c/0x140 [ 3092.271358][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3092.271358][ T253] inet6_addr_add+0x4f8/0xa40 [ 3092.271358][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3092.271358][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3092.271358][ T253] netlink_rcv_skb+0x130/0x360 [ 3092.271358][ T253] netlink_unicast+0x449/0x710 [ 3092.271358][ T253] netlink_sendmsg+0x723/0xbe0 [ 3092.271358][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3092.271358][ T253] ___sys_sendmsg+0xee/0x170 [ 3092.271358][ T253] __sys_sendmsg+0xcd/0x170 [ 3092.271358][ T253] do_syscall_64+0xc6/0x1e0 [ 3092.271358][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3092.271358][ T253] [ 3092.273624][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3092.273624][ T253] netdev_get_by_index+0x5e/0x80 [ 3092.273624][ T253] fib6_nh_init+0x3d8/0x1580 [ 3092.273624][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3092.273624][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3092.273624][ T253] ipv6_add_addr+0x411/0x2000 [ 3092.273624][ T253] inet6_addr_add+0x30e/0xa40 [ 3092.273624][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3092.273624][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3092.273624][ T253] netlink_rcv_skb+0x130/0x360 [ 3092.273624][ T253] netlink_unicast+0x449/0x710 [ 3092.273624][ T253] netlink_sendmsg+0x723/0xbe0 [ 3092.273624][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3092.273624][ T253] ___sys_sendmsg+0xee/0x170 [ 3092.273624][ T253] __sys_sendmsg+0xcd/0x170 [ 3092.273624][ T253] do_syscall_64+0xc6/0x1e0 [ 3092.273624][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3092.273624][ T253] [ 3092.275906][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3092.275906][ T253] netdev_get_by_index+0x5e/0x80 [ 3092.275906][ T253] fib6_nh_init+0x3d8/0x1580 [ 3092.275906][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3092.275906][ T253] ip6_route_add+0x1c/0x140 [ 3092.275906][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3092.275906][ T253] addrconf_add_dev+0xe2/0x170 [ 3092.275906][ T253] inet6_addr_add+0x12f/0xa40 [ 3092.275906][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3092.275906][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3092.275906][ T253] netlink_rcv_skb+0x130/0x360 [ 3092.275906][ T253] netlink_unicast+0x449/0x710 [ 3092.275906][ T253] netlink_sendmsg+0x723/0xbe0 [ 3092.275906][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3092.275906][ T253] ___sys_sendmsg+0xee/0x170 [ 3092.275906][ T253] __sys_sendmsg+0xcd/0x170 [ 3092.275906][ T253] do_syscall_64+0xc6/0x1e0 [ 3092.275906][ T253] [ 3092.278509][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3092.278509][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3092.278509][ T253] ipv6_find_idev+0x102/0x170 [ 3092.278509][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3092.278509][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3092.278509][ T253] netlink_rcv_skb+0x130/0x360 [ 3092.278509][ T253] netlink_unicast+0x449/0x710 [ 3092.278509][ T253] netlink_sendmsg+0x723/0xbe0 [ 3092.278509][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3092.278509][ T253] ___sys_sendmsg+0xee/0x170 [ 3092.278509][ T253] __sys_sendmsg+0xcd/0x170 [ 3092.278509][ T253] do_syscall_64+0xc6/0x1e0 [ 3092.278509][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3092.278509][ T253] [ 3092.280251][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3092.280251][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3092.280251][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3092.280251][ T253] ipv6_find_idev+0x102/0x170 [ 3092.280251][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3092.280251][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3092.280251][ T253] netlink_rcv_skb+0x130/0x360 [ 3092.280251][ T253] netlink_unicast+0x449/0x710 [ 3092.280251][ T253] netlink_sendmsg+0x723/0xbe0 [ 3092.280251][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3092.280251][ T253] ___sys_sendmsg+0xee/0x170 [ 3092.280251][ T253] __sys_sendmsg+0xcd/0x170 [ 3092.280251][ T253] do_syscall_64+0xc6/0x1e0 [ 3092.280251][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3092.280251][ T253] [ 3102.522307][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3102.522789][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3102.522789][ T253] dst_init+0x84/0x4a0 [ 3102.522789][ T253] dst_alloc+0x97/0x150 [ 3102.522789][ T253] ip6_dst_alloc+0x23/0x90 [ 3102.522789][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3102.522789][ T253] ip6_pol_route+0x56f/0x840 [ 3102.522789][ T253] fib6_rule_lookup+0x334/0x630 [ 3102.522789][ T253] ip6_route_output_flags+0x259/0x480 [ 3102.522789][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3102.522789][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3102.522789][ T253] netlink_rcv_skb+0x130/0x360 [ 3102.522789][ T253] netlink_unicast+0x449/0x710 [ 3102.522789][ T253] netlink_sendmsg+0x723/0xbe0 [ 3102.522789][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3102.522789][ T253] ___sys_sendmsg+0xee/0x170 [ 3102.522789][ T253] __sys_sendmsg+0xcd/0x170 [ 3102.522789][ T253] do_syscall_64+0xc6/0x1e0 [ 3102.522789][ T253] [ 3102.525035][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3102.525035][ T253] netdev_get_by_index+0x5e/0x80 [ 3102.525035][ T253] fib6_nh_init+0x3d8/0x1580 [ 3102.525035][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3102.525035][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3102.525035][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3102.525035][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3102.525035][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3102.525035][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3102.525035][ T253] addrconf_dad_begin+0x310/0x670 [ 3102.525035][ T253] addrconf_dad_work+0x10b/0xab0 [ 3102.525035][ T253] process_one_work+0x84d/0x18a0 [ 3102.525035][ T253] worker_thread+0x587/0xd30 [ 3102.525035][ T253] kthread+0x28a/0x350 [ 3102.525035][ T253] ret_from_fork+0x31/0x70 [ 3102.525035][ T253] ret_from_fork_asm+0x1a/0x30 [ 3102.525035][ T253] [ 3102.527210][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3102.527210][ T253] netdev_get_by_index+0x5e/0x80 [ 3102.527210][ T253] fib6_nh_init+0x3d8/0x1580 [ 3102.527210][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3102.527210][ T253] ip6_route_add+0x1c/0x140 [ 3102.527210][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3102.527210][ T253] inet6_addr_add+0x4f8/0xa40 [ 3102.527210][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3102.527210][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3102.527210][ T253] netlink_rcv_skb+0x130/0x360 [ 3102.527210][ T253] netlink_unicast+0x449/0x710 [ 3102.527210][ T253] netlink_sendmsg+0x723/0xbe0 [ 3102.527210][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3102.527210][ T253] ___sys_sendmsg+0xee/0x170 [ 3102.527210][ T253] __sys_sendmsg+0xcd/0x170 [ 3102.527210][ T253] do_syscall_64+0xc6/0x1e0 [ 3102.527210][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3102.527210][ T253] [ 3102.529485][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3102.529485][ T253] netdev_get_by_index+0x5e/0x80 [ 3102.529485][ T253] fib6_nh_init+0x3d8/0x1580 [ 3102.529485][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3102.529485][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3102.529485][ T253] ipv6_add_addr+0x411/0x2000 [ 3102.529485][ T253] inet6_addr_add+0x30e/0xa40 [ 3102.529485][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3102.529485][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3102.529485][ T253] netlink_rcv_skb+0x130/0x360 [ 3102.529485][ T253] netlink_unicast+0x449/0x710 [ 3102.529485][ T253] netlink_sendmsg+0x723/0xbe0 [ 3102.529485][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3102.529485][ T253] ___sys_sendmsg+0xee/0x170 [ 3102.529485][ T253] __sys_sendmsg+0xcd/0x170 [ 3102.529485][ T253] do_syscall_64+0xc6/0x1e0 [ 3102.529485][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3102.529485][ T253] [ 3102.531877][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3102.531877][ T253] netdev_get_by_index+0x5e/0x80 [ 3102.531877][ T253] fib6_nh_init+0x3d8/0x1580 [ 3102.531877][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3102.531877][ T253] ip6_route_add+0x1c/0x140 [ 3102.531877][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3102.531877][ T253] addrconf_add_dev+0xe2/0x170 [ 3102.531877][ T253] inet6_addr_add+0x12f/0xa40 [ 3102.531877][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3102.531877][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3102.531877][ T253] netlink_rcv_skb+0x130/0x360 [ 3102.531877][ T253] netlink_unicast+0x449/0x710 [ 3102.531877][ T253] netlink_sendmsg+0x723/0xbe0 [ 3102.531877][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3102.531877][ T253] ___sys_sendmsg+0xee/0x170 [ 3102.531877][ T253] __sys_sendmsg+0xcd/0x170 [ 3102.531877][ T253] do_syscall_64+0xc6/0x1e0 [ 3102.531877][ T253] [ 3102.534111][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3102.534111][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3102.534111][ T253] ipv6_find_idev+0x102/0x170 [ 3102.534111][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3102.534111][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3102.534111][ T253] netlink_rcv_skb+0x130/0x360 [ 3102.534111][ T253] netlink_unicast+0x449/0x710 [ 3102.534111][ T253] netlink_sendmsg+0x723/0xbe0 [ 3102.534111][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3102.534111][ T253] ___sys_sendmsg+0xee/0x170 [ 3102.534111][ T253] __sys_sendmsg+0xcd/0x170 [ 3102.534111][ T253] do_syscall_64+0xc6/0x1e0 [ 3102.534111][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3102.534111][ T253] [ 3102.535873][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3102.535873][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3102.535873][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3102.535873][ T253] ipv6_find_idev+0x102/0x170 [ 3102.535873][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3102.535873][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3102.535873][ T253] netlink_rcv_skb+0x130/0x360 [ 3102.535873][ T253] netlink_unicast+0x449/0x710 [ 3102.535873][ T253] netlink_sendmsg+0x723/0xbe0 [ 3102.535873][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3102.535873][ T253] ___sys_sendmsg+0xee/0x170 [ 3102.535873][ T253] __sys_sendmsg+0xcd/0x170 [ 3102.535873][ T253] do_syscall_64+0xc6/0x1e0 [ 3102.535873][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3102.535873][ T253] [ 3112.778295][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3112.778804][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3112.778804][ T253] dst_init+0x84/0x4a0 [ 3112.778804][ T253] dst_alloc+0x97/0x150 [ 3112.778804][ T253] ip6_dst_alloc+0x23/0x90 [ 3112.778804][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3112.778804][ T253] ip6_pol_route+0x56f/0x840 [ 3112.778804][ T253] fib6_rule_lookup+0x334/0x630 [ 3112.778804][ T253] ip6_route_output_flags+0x259/0x480 [ 3112.778804][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3112.778804][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3112.778804][ T253] netlink_rcv_skb+0x130/0x360 [ 3112.778804][ T253] netlink_unicast+0x449/0x710 [ 3112.778804][ T253] netlink_sendmsg+0x723/0xbe0 [ 3112.778804][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3112.778804][ T253] ___sys_sendmsg+0xee/0x170 [ 3112.778804][ T253] __sys_sendmsg+0xcd/0x170 [ 3112.778804][ T253] do_syscall_64+0xc6/0x1e0 [ 3112.778804][ T253] [ 3112.781035][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3112.781035][ T253] netdev_get_by_index+0x5e/0x80 [ 3112.781035][ T253] fib6_nh_init+0x3d8/0x1580 [ 3112.781035][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3112.781035][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3112.781035][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3112.781035][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3112.781035][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3112.781035][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3112.781035][ T253] addrconf_dad_begin+0x310/0x670 [ 3112.781035][ T253] addrconf_dad_work+0x10b/0xab0 [ 3112.781035][ T253] process_one_work+0x84d/0x18a0 [ 3112.781035][ T253] worker_thread+0x587/0xd30 [ 3112.781035][ T253] kthread+0x28a/0x350 [ 3112.781035][ T253] ret_from_fork+0x31/0x70 [ 3112.781035][ T253] ret_from_fork_asm+0x1a/0x30 [ 3112.781035][ T253] [ 3112.783201][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3112.783201][ T253] netdev_get_by_index+0x5e/0x80 [ 3112.783201][ T253] fib6_nh_init+0x3d8/0x1580 [ 3112.783201][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3112.783201][ T253] ip6_route_add+0x1c/0x140 [ 3112.783201][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3112.783201][ T253] inet6_addr_add+0x4f8/0xa40 [ 3112.783201][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3112.783201][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3112.783201][ T253] netlink_rcv_skb+0x130/0x360 [ 3112.783201][ T253] netlink_unicast+0x449/0x710 [ 3112.783201][ T253] netlink_sendmsg+0x723/0xbe0 [ 3112.783201][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3112.783201][ T253] ___sys_sendmsg+0xee/0x170 [ 3112.783201][ T253] __sys_sendmsg+0xcd/0x170 [ 3112.783201][ T253] do_syscall_64+0xc6/0x1e0 [ 3112.783201][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3112.783201][ T253] [ 3112.785474][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3112.785474][ T253] netdev_get_by_index+0x5e/0x80 [ 3112.785474][ T253] fib6_nh_init+0x3d8/0x1580 [ 3112.785474][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3112.785474][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3112.785474][ T253] ipv6_add_addr+0x411/0x2000 [ 3112.785474][ T253] inet6_addr_add+0x30e/0xa40 [ 3112.785474][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3112.785474][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3112.785474][ T253] netlink_rcv_skb+0x130/0x360 [ 3112.785474][ T253] netlink_unicast+0x449/0x710 [ 3112.785474][ T253] netlink_sendmsg+0x723/0xbe0 [ 3112.785474][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3112.785474][ T253] ___sys_sendmsg+0xee/0x170 [ 3112.785474][ T253] __sys_sendmsg+0xcd/0x170 [ 3112.785474][ T253] do_syscall_64+0xc6/0x1e0 [ 3112.785474][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3112.785474][ T253] [ 3112.787753][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3112.787753][ T253] netdev_get_by_index+0x5e/0x80 [ 3112.787753][ T253] fib6_nh_init+0x3d8/0x1580 [ 3112.787753][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3112.787753][ T253] ip6_route_add+0x1c/0x140 [ 3112.787753][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3112.787753][ T253] addrconf_add_dev+0xe2/0x170 [ 3112.787753][ T253] inet6_addr_add+0x12f/0xa40 [ 3112.787753][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3112.787753][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3112.787753][ T253] netlink_rcv_skb+0x130/0x360 [ 3112.787753][ T253] netlink_unicast+0x449/0x710 [ 3112.787753][ T253] netlink_sendmsg+0x723/0xbe0 [ 3112.787753][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3112.787753][ T253] ___sys_sendmsg+0xee/0x170 [ 3112.787753][ T253] __sys_sendmsg+0xcd/0x170 [ 3112.787753][ T253] do_syscall_64+0xc6/0x1e0 [ 3112.787753][ T253] [ 3112.789973][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3112.789973][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3112.789973][ T253] ipv6_find_idev+0x102/0x170 [ 3112.789973][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3112.789973][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3112.789973][ T253] netlink_rcv_skb+0x130/0x360 [ 3112.789973][ T253] netlink_unicast+0x449/0x710 [ 3112.789973][ T253] netlink_sendmsg+0x723/0xbe0 [ 3112.789973][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3112.789973][ T253] ___sys_sendmsg+0xee/0x170 [ 3112.789973][ T253] __sys_sendmsg+0xcd/0x170 [ 3112.789973][ T253] do_syscall_64+0xc6/0x1e0 [ 3112.789973][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3112.789973][ T253] [ 3112.791728][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3112.791728][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3112.791728][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3112.791728][ T253] ipv6_find_idev+0x102/0x170 [ 3112.791728][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3112.791728][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3112.791728][ T253] netlink_rcv_skb+0x130/0x360 [ 3112.791728][ T253] netlink_unicast+0x449/0x710 [ 3112.791728][ T253] netlink_sendmsg+0x723/0xbe0 [ 3112.791728][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3112.791728][ T253] ___sys_sendmsg+0xee/0x170 [ 3112.791728][ T253] __sys_sendmsg+0xcd/0x170 [ 3112.791728][ T253] do_syscall_64+0xc6/0x1e0 [ 3112.791728][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3112.791728][ T253] [ 3123.034315][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3123.034805][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3123.034805][ T253] dst_init+0x84/0x4a0 [ 3123.034805][ T253] dst_alloc+0x97/0x150 [ 3123.034805][ T253] ip6_dst_alloc+0x23/0x90 [ 3123.034805][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3123.034805][ T253] ip6_pol_route+0x56f/0x840 [ 3123.034805][ T253] fib6_rule_lookup+0x334/0x630 [ 3123.034805][ T253] ip6_route_output_flags+0x259/0x480 [ 3123.034805][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3123.034805][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3123.034805][ T253] netlink_rcv_skb+0x130/0x360 [ 3123.034805][ T253] netlink_unicast+0x449/0x710 [ 3123.034805][ T253] netlink_sendmsg+0x723/0xbe0 [ 3123.034805][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3123.034805][ T253] ___sys_sendmsg+0xee/0x170 [ 3123.034805][ T253] __sys_sendmsg+0xcd/0x170 [ 3123.034805][ T253] do_syscall_64+0xc6/0x1e0 [ 3123.034805][ T253] [ 3123.037000][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3123.037000][ T253] netdev_get_by_index+0x5e/0x80 [ 3123.037000][ T253] fib6_nh_init+0x3d8/0x1580 [ 3123.037000][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3123.037000][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3123.037000][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3123.037000][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3123.037000][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3123.037000][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3123.037000][ T253] addrconf_dad_begin+0x310/0x670 [ 3123.037000][ T253] addrconf_dad_work+0x10b/0xab0 [ 3123.037000][ T253] process_one_work+0x84d/0x18a0 [ 3123.037000][ T253] worker_thread+0x587/0xd30 [ 3123.037000][ T253] kthread+0x28a/0x350 [ 3123.037000][ T253] ret_from_fork+0x31/0x70 [ 3123.037000][ T253] ret_from_fork_asm+0x1a/0x30 [ 3123.037000][ T253] [ 3123.039152][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3123.039152][ T253] netdev_get_by_index+0x5e/0x80 [ 3123.039152][ T253] fib6_nh_init+0x3d8/0x1580 [ 3123.039152][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3123.039152][ T253] ip6_route_add+0x1c/0x140 [ 3123.039152][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3123.039152][ T253] inet6_addr_add+0x4f8/0xa40 [ 3123.039152][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3123.039152][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3123.039152][ T253] netlink_rcv_skb+0x130/0x360 [ 3123.039152][ T253] netlink_unicast+0x449/0x710 [ 3123.039152][ T253] netlink_sendmsg+0x723/0xbe0 [ 3123.039152][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3123.039152][ T253] ___sys_sendmsg+0xee/0x170 [ 3123.039152][ T253] __sys_sendmsg+0xcd/0x170 [ 3123.039152][ T253] do_syscall_64+0xc6/0x1e0 [ 3123.039152][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3123.039152][ T253] [ 3123.041393][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3123.041393][ T253] netdev_get_by_index+0x5e/0x80 [ 3123.041393][ T253] fib6_nh_init+0x3d8/0x1580 [ 3123.041393][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3123.041393][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3123.041393][ T253] ipv6_add_addr+0x411/0x2000 [ 3123.041393][ T253] inet6_addr_add+0x30e/0xa40 [ 3123.041393][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3123.041393][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3123.041393][ T253] netlink_rcv_skb+0x130/0x360 [ 3123.041393][ T253] netlink_unicast+0x449/0x710 [ 3123.041393][ T253] netlink_sendmsg+0x723/0xbe0 [ 3123.041393][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3123.041393][ T253] ___sys_sendmsg+0xee/0x170 [ 3123.041393][ T253] __sys_sendmsg+0xcd/0x170 [ 3123.041393][ T253] do_syscall_64+0xc6/0x1e0 [ 3123.041393][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3123.041393][ T253] [ 3123.043637][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3123.043637][ T253] netdev_get_by_index+0x5e/0x80 [ 3123.043637][ T253] fib6_nh_init+0x3d8/0x1580 [ 3123.043637][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3123.043637][ T253] ip6_route_add+0x1c/0x140 [ 3123.043637][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3123.043637][ T253] addrconf_add_dev+0xe2/0x170 [ 3123.043637][ T253] inet6_addr_add+0x12f/0xa40 [ 3123.043637][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3123.043637][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3123.043637][ T253] netlink_rcv_skb+0x130/0x360 [ 3123.043637][ T253] netlink_unicast+0x449/0x710 [ 3123.043637][ T253] netlink_sendmsg+0x723/0xbe0 [ 3123.043637][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3123.043637][ T253] ___sys_sendmsg+0xee/0x170 [ 3123.043637][ T253] __sys_sendmsg+0xcd/0x170 [ 3123.043637][ T253] do_syscall_64+0xc6/0x1e0 [ 3123.043637][ T253] [ 3123.045862][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3123.045862][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3123.045862][ T253] ipv6_find_idev+0x102/0x170 [ 3123.045862][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3123.045862][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3123.045862][ T253] netlink_rcv_skb+0x130/0x360 [ 3123.045862][ T253] netlink_unicast+0x449/0x710 [ 3123.045862][ T253] netlink_sendmsg+0x723/0xbe0 [ 3123.045862][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3123.045862][ T253] ___sys_sendmsg+0xee/0x170 [ 3123.045862][ T253] __sys_sendmsg+0xcd/0x170 [ 3123.045862][ T253] do_syscall_64+0xc6/0x1e0 [ 3123.045862][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3123.045862][ T253] [ 3123.047586][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3123.047586][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3123.047586][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3123.047586][ T253] ipv6_find_idev+0x102/0x170 [ 3123.047586][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3123.047586][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3123.047586][ T253] netlink_rcv_skb+0x130/0x360 [ 3123.047586][ T253] netlink_unicast+0x449/0x710 [ 3123.047586][ T253] netlink_sendmsg+0x723/0xbe0 [ 3123.047586][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3123.047586][ T253] ___sys_sendmsg+0xee/0x170 [ 3123.047586][ T253] __sys_sendmsg+0xcd/0x170 [ 3123.047586][ T253] do_syscall_64+0xc6/0x1e0 [ 3123.047586][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3123.047586][ T253] [ 3133.290305][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3133.290772][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3133.290772][ T253] dst_init+0x84/0x4a0 [ 3133.290772][ T253] dst_alloc+0x97/0x150 [ 3133.290772][ T253] ip6_dst_alloc+0x23/0x90 [ 3133.290772][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3133.290772][ T253] ip6_pol_route+0x56f/0x840 [ 3133.290772][ T253] fib6_rule_lookup+0x334/0x630 [ 3133.290772][ T253] ip6_route_output_flags+0x259/0x480 [ 3133.290772][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3133.290772][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3133.290772][ T253] netlink_rcv_skb+0x130/0x360 [ 3133.290772][ T253] netlink_unicast+0x449/0x710 [ 3133.290772][ T253] netlink_sendmsg+0x723/0xbe0 [ 3133.290772][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3133.290772][ T253] ___sys_sendmsg+0xee/0x170 [ 3133.290772][ T253] __sys_sendmsg+0xcd/0x170 [ 3133.290772][ T253] do_syscall_64+0xc6/0x1e0 [ 3133.290772][ T253] [ 3133.292977][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3133.292977][ T253] netdev_get_by_index+0x5e/0x80 [ 3133.292977][ T253] fib6_nh_init+0x3d8/0x1580 [ 3133.292977][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3133.292977][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3133.292977][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3133.292977][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3133.292977][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3133.292977][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3133.292977][ T253] addrconf_dad_begin+0x310/0x670 [ 3133.292977][ T253] addrconf_dad_work+0x10b/0xab0 [ 3133.292977][ T253] process_one_work+0x84d/0x18a0 [ 3133.292977][ T253] worker_thread+0x587/0xd30 [ 3133.292977][ T253] kthread+0x28a/0x350 [ 3133.292977][ T253] ret_from_fork+0x31/0x70 [ 3133.292977][ T253] ret_from_fork_asm+0x1a/0x30 [ 3133.292977][ T253] [ 3133.295649][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3133.295649][ T253] netdev_get_by_index+0x5e/0x80 [ 3133.295649][ T253] fib6_nh_init+0x3d8/0x1580 [ 3133.295649][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3133.295649][ T253] ip6_route_add+0x1c/0x140 [ 3133.295649][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3133.295649][ T253] inet6_addr_add+0x4f8/0xa40 [ 3133.295649][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3133.295649][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3133.295649][ T253] netlink_rcv_skb+0x130/0x360 [ 3133.295649][ T253] netlink_unicast+0x449/0x710 [ 3133.295649][ T253] netlink_sendmsg+0x723/0xbe0 [ 3133.295649][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3133.295649][ T253] ___sys_sendmsg+0xee/0x170 [ 3133.295649][ T253] __sys_sendmsg+0xcd/0x170 [ 3133.295649][ T253] do_syscall_64+0xc6/0x1e0 [ 3133.295649][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3133.295649][ T253] [ 3133.297890][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3133.297890][ T253] netdev_get_by_index+0x5e/0x80 [ 3133.297890][ T253] fib6_nh_init+0x3d8/0x1580 [ 3133.297890][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3133.297890][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3133.297890][ T253] ipv6_add_addr+0x411/0x2000 [ 3133.297890][ T253] inet6_addr_add+0x30e/0xa40 [ 3133.297890][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3133.297890][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3133.297890][ T253] netlink_rcv_skb+0x130/0x360 [ 3133.297890][ T253] netlink_unicast+0x449/0x710 [ 3133.297890][ T253] netlink_sendmsg+0x723/0xbe0 [ 3133.297890][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3133.297890][ T253] ___sys_sendmsg+0xee/0x170 [ 3133.297890][ T253] __sys_sendmsg+0xcd/0x170 [ 3133.297890][ T253] do_syscall_64+0xc6/0x1e0 [ 3133.297890][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3133.297890][ T253] [ 3133.300131][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3133.300131][ T253] netdev_get_by_index+0x5e/0x80 [ 3133.300131][ T253] fib6_nh_init+0x3d8/0x1580 [ 3133.300131][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3133.300131][ T253] ip6_route_add+0x1c/0x140 [ 3133.300131][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3133.300131][ T253] addrconf_add_dev+0xe2/0x170 [ 3133.300131][ T253] inet6_addr_add+0x12f/0xa40 [ 3133.300131][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3133.300131][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3133.300131][ T253] netlink_rcv_skb+0x130/0x360 [ 3133.300131][ T253] netlink_unicast+0x449/0x710 [ 3133.300131][ T253] netlink_sendmsg+0x723/0xbe0 [ 3133.300131][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3133.300131][ T253] ___sys_sendmsg+0xee/0x170 [ 3133.300131][ T253] __sys_sendmsg+0xcd/0x170 [ 3133.300131][ T253] do_syscall_64+0xc6/0x1e0 [ 3133.300131][ T253] [ 3133.302329][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3133.302329][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3133.302329][ T253] ipv6_find_idev+0x102/0x170 [ 3133.302329][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3133.302329][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3133.302329][ T253] netlink_rcv_skb+0x130/0x360 [ 3133.302329][ T253] netlink_unicast+0x449/0x710 [ 3133.302329][ T253] netlink_sendmsg+0x723/0xbe0 [ 3133.302329][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3133.302329][ T253] ___sys_sendmsg+0xee/0x170 [ 3133.302329][ T253] __sys_sendmsg+0xcd/0x170 [ 3133.302329][ T253] do_syscall_64+0xc6/0x1e0 [ 3133.302329][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3133.302329][ T253] [ 3133.304056][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3133.304056][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3133.304056][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3133.304056][ T253] ipv6_find_idev+0x102/0x170 [ 3133.304056][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3133.304056][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3133.304056][ T253] netlink_rcv_skb+0x130/0x360 [ 3133.304056][ T253] netlink_unicast+0x449/0x710 [ 3133.304056][ T253] netlink_sendmsg+0x723/0xbe0 [ 3133.304056][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3133.304056][ T253] ___sys_sendmsg+0xee/0x170 [ 3133.304056][ T253] __sys_sendmsg+0xcd/0x170 [ 3133.304056][ T253] do_syscall_64+0xc6/0x1e0 [ 3133.304056][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3133.304056][ T253] [ 3143.474325][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3143.474849][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3143.474849][ T253] dst_init+0x84/0x4a0 [ 3143.474849][ T253] dst_alloc+0x97/0x150 [ 3143.474849][ T253] ip6_dst_alloc+0x23/0x90 [ 3143.474849][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3143.474849][ T253] ip6_pol_route+0x56f/0x840 [ 3143.474849][ T253] fib6_rule_lookup+0x334/0x630 [ 3143.474849][ T253] ip6_route_output_flags+0x259/0x480 [ 3143.474849][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3143.474849][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3143.474849][ T253] netlink_rcv_skb+0x130/0x360 [ 3143.474849][ T253] netlink_unicast+0x449/0x710 [ 3143.474849][ T253] netlink_sendmsg+0x723/0xbe0 [ 3143.474849][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3143.474849][ T253] ___sys_sendmsg+0xee/0x170 [ 3143.474849][ T253] __sys_sendmsg+0xcd/0x170 [ 3143.474849][ T253] do_syscall_64+0xc6/0x1e0 [ 3143.474849][ T253] [ 3143.477072][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3143.477072][ T253] netdev_get_by_index+0x5e/0x80 [ 3143.477072][ T253] fib6_nh_init+0x3d8/0x1580 [ 3143.477072][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3143.477072][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3143.477072][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3143.477072][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3143.477072][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3143.477072][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3143.477072][ T253] addrconf_dad_begin+0x310/0x670 [ 3143.477072][ T253] addrconf_dad_work+0x10b/0xab0 [ 3143.477072][ T253] process_one_work+0x84d/0x18a0 [ 3143.477072][ T253] worker_thread+0x587/0xd30 [ 3143.477072][ T253] kthread+0x28a/0x350 [ 3143.477072][ T253] ret_from_fork+0x31/0x70 [ 3143.477072][ T253] ret_from_fork_asm+0x1a/0x30 [ 3143.477072][ T253] [ 3143.479330][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3143.479330][ T253] netdev_get_by_index+0x5e/0x80 [ 3143.479330][ T253] fib6_nh_init+0x3d8/0x1580 [ 3143.479330][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3143.479330][ T253] ip6_route_add+0x1c/0x140 [ 3143.479330][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3143.479330][ T253] inet6_addr_add+0x4f8/0xa40 [ 3143.479330][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3143.479330][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3143.479330][ T253] netlink_rcv_skb+0x130/0x360 [ 3143.479330][ T253] netlink_unicast+0x449/0x710 [ 3143.479330][ T253] netlink_sendmsg+0x723/0xbe0 [ 3143.479330][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3143.479330][ T253] ___sys_sendmsg+0xee/0x170 [ 3143.479330][ T253] __sys_sendmsg+0xcd/0x170 [ 3143.479330][ T253] do_syscall_64+0xc6/0x1e0 [ 3143.479330][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3143.479330][ T253] [ 3143.481591][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3143.481591][ T253] netdev_get_by_index+0x5e/0x80 [ 3143.481591][ T253] fib6_nh_init+0x3d8/0x1580 [ 3143.481591][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3143.481591][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3143.481591][ T253] ipv6_add_addr+0x411/0x2000 [ 3143.481591][ T253] inet6_addr_add+0x30e/0xa40 [ 3143.481591][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3143.481591][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3143.481591][ T253] netlink_rcv_skb+0x130/0x360 [ 3143.481591][ T253] netlink_unicast+0x449/0x710 [ 3143.481591][ T253] netlink_sendmsg+0x723/0xbe0 [ 3143.481591][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3143.481591][ T253] ___sys_sendmsg+0xee/0x170 [ 3143.481591][ T253] __sys_sendmsg+0xcd/0x170 [ 3143.481591][ T253] do_syscall_64+0xc6/0x1e0 [ 3143.481591][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3143.481591][ T253] [ 3143.483868][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3143.483868][ T253] netdev_get_by_index+0x5e/0x80 [ 3143.483868][ T253] fib6_nh_init+0x3d8/0x1580 [ 3143.483868][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3143.483868][ T253] ip6_route_add+0x1c/0x140 [ 3143.483868][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3143.483868][ T253] addrconf_add_dev+0xe2/0x170 [ 3143.483868][ T253] inet6_addr_add+0x12f/0xa40 [ 3143.483868][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3143.483868][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3143.483868][ T253] netlink_rcv_skb+0x130/0x360 [ 3143.483868][ T253] netlink_unicast+0x449/0x710 [ 3143.483868][ T253] netlink_sendmsg+0x723/0xbe0 [ 3143.483868][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3143.483868][ T253] ___sys_sendmsg+0xee/0x170 [ 3143.483868][ T253] __sys_sendmsg+0xcd/0x170 [ 3143.483868][ T253] do_syscall_64+0xc6/0x1e0 [ 3143.483868][ T253] [ 3143.486098][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3143.486098][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3143.486098][ T253] ipv6_find_idev+0x102/0x170 [ 3143.486098][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3143.486098][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3143.486098][ T253] netlink_rcv_skb+0x130/0x360 [ 3143.486098][ T253] netlink_unicast+0x449/0x710 [ 3143.486098][ T253] netlink_sendmsg+0x723/0xbe0 [ 3143.486098][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3143.486098][ T253] ___sys_sendmsg+0xee/0x170 [ 3143.486098][ T253] __sys_sendmsg+0xcd/0x170 [ 3143.486098][ T253] do_syscall_64+0xc6/0x1e0 [ 3143.486098][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3143.486098][ T253] [ 3143.487841][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3143.487841][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3143.487841][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3143.487841][ T253] ipv6_find_idev+0x102/0x170 [ 3143.487841][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3143.487841][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3143.487841][ T253] netlink_rcv_skb+0x130/0x360 [ 3143.487841][ T253] netlink_unicast+0x449/0x710 [ 3143.487841][ T253] netlink_sendmsg+0x723/0xbe0 [ 3143.487841][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3143.487841][ T253] ___sys_sendmsg+0xee/0x170 [ 3143.487841][ T253] __sys_sendmsg+0xcd/0x170 [ 3143.487841][ T253] do_syscall_64+0xc6/0x1e0 [ 3143.487841][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3143.487841][ T253] [ 3153.738356][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3153.738854][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3153.738854][ T253] dst_init+0x84/0x4a0 [ 3153.738854][ T253] dst_alloc+0x97/0x150 [ 3153.738854][ T253] ip6_dst_alloc+0x23/0x90 [ 3153.738854][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3153.738854][ T253] ip6_pol_route+0x56f/0x840 [ 3153.738854][ T253] fib6_rule_lookup+0x334/0x630 [ 3153.738854][ T253] ip6_route_output_flags+0x259/0x480 [ 3153.738854][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3153.738854][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3153.738854][ T253] netlink_rcv_skb+0x130/0x360 [ 3153.738854][ T253] netlink_unicast+0x449/0x710 [ 3153.738854][ T253] netlink_sendmsg+0x723/0xbe0 [ 3153.738854][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3153.738854][ T253] ___sys_sendmsg+0xee/0x170 [ 3153.738854][ T253] __sys_sendmsg+0xcd/0x170 [ 3153.738854][ T253] do_syscall_64+0xc6/0x1e0 [ 3153.738854][ T253] [ 3153.741084][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3153.741084][ T253] netdev_get_by_index+0x5e/0x80 [ 3153.741084][ T253] fib6_nh_init+0x3d8/0x1580 [ 3153.741084][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3153.741084][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3153.741084][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3153.741084][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3153.741084][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3153.741084][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3153.741084][ T253] addrconf_dad_begin+0x310/0x670 [ 3153.741084][ T253] addrconf_dad_work+0x10b/0xab0 [ 3153.741084][ T253] process_one_work+0x84d/0x18a0 [ 3153.741084][ T253] worker_thread+0x587/0xd30 [ 3153.741084][ T253] kthread+0x28a/0x350 [ 3153.741084][ T253] ret_from_fork+0x31/0x70 [ 3153.741084][ T253] ret_from_fork_asm+0x1a/0x30 [ 3153.741084][ T253] [ 3153.743261][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3153.743261][ T253] netdev_get_by_index+0x5e/0x80 [ 3153.743261][ T253] fib6_nh_init+0x3d8/0x1580 [ 3153.743261][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3153.743261][ T253] ip6_route_add+0x1c/0x140 [ 3153.743261][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3153.743261][ T253] inet6_addr_add+0x4f8/0xa40 [ 3153.743261][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3153.743261][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3153.743261][ T253] netlink_rcv_skb+0x130/0x360 [ 3153.743261][ T253] netlink_unicast+0x449/0x710 [ 3153.743261][ T253] netlink_sendmsg+0x723/0xbe0 [ 3153.743261][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3153.743261][ T253] ___sys_sendmsg+0xee/0x170 [ 3153.743261][ T253] __sys_sendmsg+0xcd/0x170 [ 3153.743261][ T253] do_syscall_64+0xc6/0x1e0 [ 3153.743261][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3153.743261][ T253] [ 3153.745653][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3153.745653][ T253] netdev_get_by_index+0x5e/0x80 [ 3153.745653][ T253] fib6_nh_init+0x3d8/0x1580 [ 3153.745653][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3153.745653][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3153.745653][ T253] ipv6_add_addr+0x411/0x2000 [ 3153.745653][ T253] inet6_addr_add+0x30e/0xa40 [ 3153.745653][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3153.745653][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3153.745653][ T253] netlink_rcv_skb+0x130/0x360 [ 3153.745653][ T253] netlink_unicast+0x449/0x710 [ 3153.745653][ T253] netlink_sendmsg+0x723/0xbe0 [ 3153.745653][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3153.745653][ T253] ___sys_sendmsg+0xee/0x170 [ 3153.745653][ T253] __sys_sendmsg+0xcd/0x170 [ 3153.745653][ T253] do_syscall_64+0xc6/0x1e0 [ 3153.745653][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3153.745653][ T253] [ 3153.747924][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3153.747924][ T253] netdev_get_by_index+0x5e/0x80 [ 3153.747924][ T253] fib6_nh_init+0x3d8/0x1580 [ 3153.747924][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3153.747924][ T253] ip6_route_add+0x1c/0x140 [ 3153.747924][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3153.747924][ T253] addrconf_add_dev+0xe2/0x170 [ 3153.747924][ T253] inet6_addr_add+0x12f/0xa40 [ 3153.747924][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3153.747924][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3153.747924][ T253] netlink_rcv_skb+0x130/0x360 [ 3153.747924][ T253] netlink_unicast+0x449/0x710 [ 3153.747924][ T253] netlink_sendmsg+0x723/0xbe0 [ 3153.747924][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3153.747924][ T253] ___sys_sendmsg+0xee/0x170 [ 3153.747924][ T253] __sys_sendmsg+0xcd/0x170 [ 3153.747924][ T253] do_syscall_64+0xc6/0x1e0 [ 3153.747924][ T253] [ 3153.750151][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3153.750151][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3153.750151][ T253] ipv6_find_idev+0x102/0x170 [ 3153.750151][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3153.750151][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3153.750151][ T253] netlink_rcv_skb+0x130/0x360 [ 3153.750151][ T253] netlink_unicast+0x449/0x710 [ 3153.750151][ T253] netlink_sendmsg+0x723/0xbe0 [ 3153.750151][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3153.750151][ T253] ___sys_sendmsg+0xee/0x170 [ 3153.750151][ T253] __sys_sendmsg+0xcd/0x170 [ 3153.750151][ T253] do_syscall_64+0xc6/0x1e0 [ 3153.750151][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3153.750151][ T253] [ 3153.751895][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3153.751895][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3153.751895][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3153.751895][ T253] ipv6_find_idev+0x102/0x170 [ 3153.751895][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3153.751895][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3153.751895][ T253] netlink_rcv_skb+0x130/0x360 [ 3153.751895][ T253] netlink_unicast+0x449/0x710 [ 3153.751895][ T253] netlink_sendmsg+0x723/0xbe0 [ 3153.751895][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3153.751895][ T253] ___sys_sendmsg+0xee/0x170 [ 3153.751895][ T253] __sys_sendmsg+0xcd/0x170 [ 3153.751895][ T253] do_syscall_64+0xc6/0x1e0 [ 3153.751895][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3153.751895][ T253] [ 3164.002307][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3164.002934][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3164.002934][ T253] dst_init+0x84/0x4a0 [ 3164.002934][ T253] dst_alloc+0x97/0x150 [ 3164.002934][ T253] ip6_dst_alloc+0x23/0x90 [ 3164.002934][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3164.002934][ T253] ip6_pol_route+0x56f/0x840 [ 3164.002934][ T253] fib6_rule_lookup+0x334/0x630 [ 3164.002934][ T253] ip6_route_output_flags+0x259/0x480 [ 3164.002934][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3164.002934][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3164.002934][ T253] netlink_rcv_skb+0x130/0x360 [ 3164.002934][ T253] netlink_unicast+0x449/0x710 [ 3164.002934][ T253] netlink_sendmsg+0x723/0xbe0 [ 3164.002934][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3164.002934][ T253] ___sys_sendmsg+0xee/0x170 [ 3164.002934][ T253] __sys_sendmsg+0xcd/0x170 [ 3164.002934][ T253] do_syscall_64+0xc6/0x1e0 [ 3164.002934][ T253] [ 3164.005184][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3164.005184][ T253] netdev_get_by_index+0x5e/0x80 [ 3164.005184][ T253] fib6_nh_init+0x3d8/0x1580 [ 3164.005184][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3164.005184][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3164.005184][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3164.005184][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3164.005184][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3164.005184][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3164.005184][ T253] addrconf_dad_begin+0x310/0x670 [ 3164.005184][ T253] addrconf_dad_work+0x10b/0xab0 [ 3164.005184][ T253] process_one_work+0x84d/0x18a0 [ 3164.005184][ T253] worker_thread+0x587/0xd30 [ 3164.005184][ T253] kthread+0x28a/0x350 [ 3164.005184][ T253] ret_from_fork+0x31/0x70 [ 3164.005184][ T253] ret_from_fork_asm+0x1a/0x30 [ 3164.005184][ T253] [ 3164.007346][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3164.007346][ T253] netdev_get_by_index+0x5e/0x80 [ 3164.007346][ T253] fib6_nh_init+0x3d8/0x1580 [ 3164.007346][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3164.007346][ T253] ip6_route_add+0x1c/0x140 [ 3164.007346][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3164.007346][ T253] inet6_addr_add+0x4f8/0xa40 [ 3164.007346][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3164.007346][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3164.007346][ T253] netlink_rcv_skb+0x130/0x360 [ 3164.007346][ T253] netlink_unicast+0x449/0x710 [ 3164.007346][ T253] netlink_sendmsg+0x723/0xbe0 [ 3164.007346][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3164.007346][ T253] ___sys_sendmsg+0xee/0x170 [ 3164.007346][ T253] __sys_sendmsg+0xcd/0x170 [ 3164.007346][ T253] do_syscall_64+0xc6/0x1e0 [ 3164.007346][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3164.007346][ T253] [ 3164.009612][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3164.009612][ T253] netdev_get_by_index+0x5e/0x80 [ 3164.009612][ T253] fib6_nh_init+0x3d8/0x1580 [ 3164.009612][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3164.009612][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3164.009612][ T253] ipv6_add_addr+0x411/0x2000 [ 3164.009612][ T253] inet6_addr_add+0x30e/0xa40 [ 3164.009612][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3164.009612][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3164.009612][ T253] netlink_rcv_skb+0x130/0x360 [ 3164.009612][ T253] netlink_unicast+0x449/0x710 [ 3164.009612][ T253] netlink_sendmsg+0x723/0xbe0 [ 3164.009612][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3164.009612][ T253] ___sys_sendmsg+0xee/0x170 [ 3164.009612][ T253] __sys_sendmsg+0xcd/0x170 [ 3164.009612][ T253] do_syscall_64+0xc6/0x1e0 [ 3164.009612][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3164.009612][ T253] [ 3164.011879][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3164.011879][ T253] netdev_get_by_index+0x5e/0x80 [ 3164.011879][ T253] fib6_nh_init+0x3d8/0x1580 [ 3164.011879][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3164.011879][ T253] ip6_route_add+0x1c/0x140 [ 3164.011879][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3164.011879][ T253] addrconf_add_dev+0xe2/0x170 [ 3164.011879][ T253] inet6_addr_add+0x12f/0xa40 [ 3164.011879][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3164.011879][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3164.011879][ T253] netlink_rcv_skb+0x130/0x360 [ 3164.011879][ T253] netlink_unicast+0x449/0x710 [ 3164.011879][ T253] netlink_sendmsg+0x723/0xbe0 [ 3164.011879][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3164.011879][ T253] ___sys_sendmsg+0xee/0x170 [ 3164.011879][ T253] __sys_sendmsg+0xcd/0x170 [ 3164.011879][ T253] do_syscall_64+0xc6/0x1e0 [ 3164.011879][ T253] [ 3164.014110][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3164.014110][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3164.014110][ T253] ipv6_find_idev+0x102/0x170 [ 3164.014110][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3164.014110][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3164.014110][ T253] netlink_rcv_skb+0x130/0x360 [ 3164.014110][ T253] netlink_unicast+0x449/0x710 [ 3164.014110][ T253] netlink_sendmsg+0x723/0xbe0 [ 3164.014110][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3164.014110][ T253] ___sys_sendmsg+0xee/0x170 [ 3164.014110][ T253] __sys_sendmsg+0xcd/0x170 [ 3164.014110][ T253] do_syscall_64+0xc6/0x1e0 [ 3164.014110][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3164.014110][ T253] [ 3164.015978][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3164.015978][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3164.015978][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3164.015978][ T253] ipv6_find_idev+0x102/0x170 [ 3164.015978][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3164.015978][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3164.015978][ T253] netlink_rcv_skb+0x130/0x360 [ 3164.015978][ T253] netlink_unicast+0x449/0x710 [ 3164.015978][ T253] netlink_sendmsg+0x723/0xbe0 [ 3164.015978][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3164.015978][ T253] ___sys_sendmsg+0xee/0x170 [ 3164.015978][ T253] __sys_sendmsg+0xcd/0x170 [ 3164.015978][ T253] do_syscall_64+0xc6/0x1e0 [ 3164.015978][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3164.015978][ T253] [ 3174.266234][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3174.266716][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3174.266716][ T253] dst_init+0x84/0x4a0 [ 3174.266716][ T253] dst_alloc+0x97/0x150 [ 3174.266716][ T253] ip6_dst_alloc+0x23/0x90 [ 3174.266716][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3174.266716][ T253] ip6_pol_route+0x56f/0x840 [ 3174.266716][ T253] fib6_rule_lookup+0x334/0x630 [ 3174.266716][ T253] ip6_route_output_flags+0x259/0x480 [ 3174.266716][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3174.266716][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3174.266716][ T253] netlink_rcv_skb+0x130/0x360 [ 3174.266716][ T253] netlink_unicast+0x449/0x710 [ 3174.266716][ T253] netlink_sendmsg+0x723/0xbe0 [ 3174.266716][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3174.266716][ T253] ___sys_sendmsg+0xee/0x170 [ 3174.266716][ T253] __sys_sendmsg+0xcd/0x170 [ 3174.266716][ T253] do_syscall_64+0xc6/0x1e0 [ 3174.266716][ T253] [ 3174.269061][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3174.269061][ T253] netdev_get_by_index+0x5e/0x80 [ 3174.269061][ T253] fib6_nh_init+0x3d8/0x1580 [ 3174.269061][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3174.269061][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3174.269061][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3174.269061][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3174.269061][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3174.269061][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3174.269061][ T253] addrconf_dad_begin+0x310/0x670 [ 3174.269061][ T253] addrconf_dad_work+0x10b/0xab0 [ 3174.269061][ T253] process_one_work+0x84d/0x18a0 [ 3174.269061][ T253] worker_thread+0x587/0xd30 [ 3174.269061][ T253] kthread+0x28a/0x350 [ 3174.269061][ T253] ret_from_fork+0x31/0x70 [ 3174.269061][ T253] ret_from_fork_asm+0x1a/0x30 [ 3174.269061][ T253] [ 3174.271215][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3174.271215][ T253] netdev_get_by_index+0x5e/0x80 [ 3174.271215][ T253] fib6_nh_init+0x3d8/0x1580 [ 3174.271215][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3174.271215][ T253] ip6_route_add+0x1c/0x140 [ 3174.271215][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3174.271215][ T253] inet6_addr_add+0x4f8/0xa40 [ 3174.271215][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3174.271215][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3174.271215][ T253] netlink_rcv_skb+0x130/0x360 [ 3174.271215][ T253] netlink_unicast+0x449/0x710 [ 3174.271215][ T253] netlink_sendmsg+0x723/0xbe0 [ 3174.271215][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3174.271215][ T253] ___sys_sendmsg+0xee/0x170 [ 3174.271215][ T253] __sys_sendmsg+0xcd/0x170 [ 3174.271215][ T253] do_syscall_64+0xc6/0x1e0 [ 3174.271215][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3174.271215][ T253] [ 3174.273469][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3174.273469][ T253] netdev_get_by_index+0x5e/0x80 [ 3174.273469][ T253] fib6_nh_init+0x3d8/0x1580 [ 3174.273469][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3174.273469][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3174.273469][ T253] ipv6_add_addr+0x411/0x2000 [ 3174.273469][ T253] inet6_addr_add+0x30e/0xa40 [ 3174.273469][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3174.273469][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3174.273469][ T253] netlink_rcv_skb+0x130/0x360 [ 3174.273469][ T253] netlink_unicast+0x449/0x710 [ 3174.273469][ T253] netlink_sendmsg+0x723/0xbe0 [ 3174.273469][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3174.273469][ T253] ___sys_sendmsg+0xee/0x170 [ 3174.273469][ T253] __sys_sendmsg+0xcd/0x170 [ 3174.273469][ T253] do_syscall_64+0xc6/0x1e0 [ 3174.273469][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3174.273469][ T253] [ 3174.275732][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3174.275732][ T253] netdev_get_by_index+0x5e/0x80 [ 3174.275732][ T253] fib6_nh_init+0x3d8/0x1580 [ 3174.275732][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3174.275732][ T253] ip6_route_add+0x1c/0x140 [ 3174.275732][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3174.275732][ T253] addrconf_add_dev+0xe2/0x170 [ 3174.275732][ T253] inet6_addr_add+0x12f/0xa40 [ 3174.275732][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3174.275732][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3174.275732][ T253] netlink_rcv_skb+0x130/0x360 [ 3174.275732][ T253] netlink_unicast+0x449/0x710 [ 3174.275732][ T253] netlink_sendmsg+0x723/0xbe0 [ 3174.275732][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3174.275732][ T253] ___sys_sendmsg+0xee/0x170 [ 3174.275732][ T253] __sys_sendmsg+0xcd/0x170 [ 3174.275732][ T253] do_syscall_64+0xc6/0x1e0 [ 3174.275732][ T253] [ 3174.277955][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3174.277955][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3174.277955][ T253] ipv6_find_idev+0x102/0x170 [ 3174.277955][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3174.277955][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3174.277955][ T253] netlink_rcv_skb+0x130/0x360 [ 3174.277955][ T253] netlink_unicast+0x449/0x710 [ 3174.277955][ T253] netlink_sendmsg+0x723/0xbe0 [ 3174.277955][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3174.277955][ T253] ___sys_sendmsg+0xee/0x170 [ 3174.277955][ T253] __sys_sendmsg+0xcd/0x170 [ 3174.277955][ T253] do_syscall_64+0xc6/0x1e0 [ 3174.277955][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3174.277955][ T253] [ 3174.279691][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3174.279691][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3174.279691][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3174.279691][ T253] ipv6_find_idev+0x102/0x170 [ 3174.279691][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3174.279691][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3174.279691][ T253] netlink_rcv_skb+0x130/0x360 [ 3174.279691][ T253] netlink_unicast+0x449/0x710 [ 3174.279691][ T253] netlink_sendmsg+0x723/0xbe0 [ 3174.279691][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3174.279691][ T253] ___sys_sendmsg+0xee/0x170 [ 3174.279691][ T253] __sys_sendmsg+0xcd/0x170 [ 3174.279691][ T253] do_syscall_64+0xc6/0x1e0 [ 3174.279691][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3174.279691][ T253] [ 3184.434257][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3184.434890][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3184.434890][ T253] dst_init+0x84/0x4a0 [ 3184.434890][ T253] dst_alloc+0x97/0x150 [ 3184.434890][ T253] ip6_dst_alloc+0x23/0x90 [ 3184.434890][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3184.434890][ T253] ip6_pol_route+0x56f/0x840 [ 3184.434890][ T253] fib6_rule_lookup+0x334/0x630 [ 3184.434890][ T253] ip6_route_output_flags+0x259/0x480 [ 3184.434890][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3184.434890][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3184.434890][ T253] netlink_rcv_skb+0x130/0x360 [ 3184.434890][ T253] netlink_unicast+0x449/0x710 [ 3184.434890][ T253] netlink_sendmsg+0x723/0xbe0 [ 3184.434890][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3184.434890][ T253] ___sys_sendmsg+0xee/0x170 [ 3184.434890][ T253] __sys_sendmsg+0xcd/0x170 [ 3184.434890][ T253] do_syscall_64+0xc6/0x1e0 [ 3184.434890][ T253] [ 3184.439081][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3184.439081][ T253] netdev_get_by_index+0x5e/0x80 [ 3184.439081][ T253] fib6_nh_init+0x3d8/0x1580 [ 3184.439081][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3184.439081][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3184.439081][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3184.439081][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3184.439081][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3184.439081][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3184.439081][ T253] addrconf_dad_begin+0x310/0x670 [ 3184.439081][ T253] addrconf_dad_work+0x10b/0xab0 [ 3184.439081][ T253] process_one_work+0x84d/0x18a0 [ 3184.439081][ T253] worker_thread+0x587/0xd30 [ 3184.439081][ T253] kthread+0x28a/0x350 [ 3184.439081][ T253] ret_from_fork+0x31/0x70 [ 3184.439081][ T253] ret_from_fork_asm+0x1a/0x30 [ 3184.439081][ T253] [ 3184.443095][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3184.443095][ T253] netdev_get_by_index+0x5e/0x80 [ 3184.443095][ T253] fib6_nh_init+0x3d8/0x1580 [ 3184.443095][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3184.443095][ T253] ip6_route_add+0x1c/0x140 [ 3184.443095][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3184.443095][ T253] inet6_addr_add+0x4f8/0xa40 [ 3184.443095][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3184.443095][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3184.443095][ T253] netlink_rcv_skb+0x130/0x360 [ 3184.443095][ T253] netlink_unicast+0x449/0x710 [ 3184.443095][ T253] netlink_sendmsg+0x723/0xbe0 [ 3184.443095][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3184.443095][ T253] ___sys_sendmsg+0xee/0x170 [ 3184.443095][ T253] __sys_sendmsg+0xcd/0x170 [ 3184.443095][ T253] do_syscall_64+0xc6/0x1e0 [ 3184.443095][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3184.443095][ T253] [ 3184.447337][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3184.447337][ T253] netdev_get_by_index+0x5e/0x80 [ 3184.447337][ T253] fib6_nh_init+0x3d8/0x1580 [ 3184.447337][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3184.447337][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3184.447337][ T253] ipv6_add_addr+0x411/0x2000 [ 3184.447337][ T253] inet6_addr_add+0x30e/0xa40 [ 3184.447337][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3184.447337][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3184.447337][ T253] netlink_rcv_skb+0x130/0x360 [ 3184.447337][ T253] netlink_unicast+0x449/0x710 [ 3184.447337][ T253] netlink_sendmsg+0x723/0xbe0 [ 3184.447337][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3184.447337][ T253] ___sys_sendmsg+0xee/0x170 [ 3184.447337][ T253] __sys_sendmsg+0xcd/0x170 [ 3184.447337][ T253] do_syscall_64+0xc6/0x1e0 [ 3184.447337][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3184.447337][ T253] [ 3184.451550][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3184.451550][ T253] netdev_get_by_index+0x5e/0x80 [ 3184.451550][ T253] fib6_nh_init+0x3d8/0x1580 [ 3184.451550][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3184.451550][ T253] ip6_route_add+0x1c/0x140 [ 3184.451550][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3184.451550][ T253] addrconf_add_dev+0xe2/0x170 [ 3184.451550][ T253] inet6_addr_add+0x12f/0xa40 [ 3184.451550][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3184.451550][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3184.451550][ T253] netlink_rcv_skb+0x130/0x360 [ 3184.451550][ T253] netlink_unicast+0x449/0x710 [ 3184.451550][ T253] netlink_sendmsg+0x723/0xbe0 [ 3184.451550][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3184.451550][ T253] ___sys_sendmsg+0xee/0x170 [ 3184.451550][ T253] __sys_sendmsg+0xcd/0x170 [ 3184.451550][ T253] do_syscall_64+0xc6/0x1e0 [ 3184.451550][ T253] [ 3184.455722][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3184.455722][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3184.455722][ T253] ipv6_find_idev+0x102/0x170 [ 3184.455722][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3184.455722][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3184.455722][ T253] netlink_rcv_skb+0x130/0x360 [ 3184.455722][ T253] netlink_unicast+0x449/0x710 [ 3184.455722][ T253] netlink_sendmsg+0x723/0xbe0 [ 3184.455722][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3184.455722][ T253] ___sys_sendmsg+0xee/0x170 [ 3184.455722][ T253] __sys_sendmsg+0xcd/0x170 [ 3184.455722][ T253] do_syscall_64+0xc6/0x1e0 [ 3184.455722][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3184.455722][ T253] [ 3184.458978][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3184.458978][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3184.458978][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3184.458978][ T253] ipv6_find_idev+0x102/0x170 [ 3184.458978][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3184.458978][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3184.458978][ T253] netlink_rcv_skb+0x130/0x360 [ 3184.458978][ T253] netlink_unicast+0x449/0x710 [ 3184.458978][ T253] netlink_sendmsg+0x723/0xbe0 [ 3184.458978][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3184.458978][ T253] ___sys_sendmsg+0xee/0x170 [ 3184.458978][ T253] __sys_sendmsg+0xcd/0x170 [ 3184.458978][ T253] do_syscall_64+0xc6/0x1e0 [ 3184.458978][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3184.458978][ T253] [ 3194.554299][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3194.554819][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3194.554819][ T253] dst_init+0x84/0x4a0 [ 3194.554819][ T253] dst_alloc+0x97/0x150 [ 3194.554819][ T253] ip6_dst_alloc+0x23/0x90 [ 3194.554819][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3194.554819][ T253] ip6_pol_route+0x56f/0x840 [ 3194.554819][ T253] fib6_rule_lookup+0x334/0x630 [ 3194.554819][ T253] ip6_route_output_flags+0x259/0x480 [ 3194.554819][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3194.554819][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3194.554819][ T253] netlink_rcv_skb+0x130/0x360 [ 3194.554819][ T253] netlink_unicast+0x449/0x710 [ 3194.554819][ T253] netlink_sendmsg+0x723/0xbe0 [ 3194.554819][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3194.554819][ T253] ___sys_sendmsg+0xee/0x170 [ 3194.554819][ T253] __sys_sendmsg+0xcd/0x170 [ 3194.554819][ T253] do_syscall_64+0xc6/0x1e0 [ 3194.554819][ T253] [ 3194.557171][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3194.557171][ T253] netdev_get_by_index+0x5e/0x80 [ 3194.557171][ T253] fib6_nh_init+0x3d8/0x1580 [ 3194.557171][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3194.557171][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3194.557171][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3194.557171][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3194.557171][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3194.557171][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3194.557171][ T253] addrconf_dad_begin+0x310/0x670 [ 3194.557171][ T253] addrconf_dad_work+0x10b/0xab0 [ 3194.557171][ T253] process_one_work+0x84d/0x18a0 [ 3194.557171][ T253] worker_thread+0x587/0xd30 [ 3194.557171][ T253] kthread+0x28a/0x350 [ 3194.557171][ T253] ret_from_fork+0x31/0x70 [ 3194.557171][ T253] ret_from_fork_asm+0x1a/0x30 [ 3194.557171][ T253] [ 3194.559330][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3194.559330][ T253] netdev_get_by_index+0x5e/0x80 [ 3194.559330][ T253] fib6_nh_init+0x3d8/0x1580 [ 3194.559330][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3194.559330][ T253] ip6_route_add+0x1c/0x140 [ 3194.559330][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3194.559330][ T253] inet6_addr_add+0x4f8/0xa40 [ 3194.559330][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3194.559330][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3194.559330][ T253] netlink_rcv_skb+0x130/0x360 [ 3194.559330][ T253] netlink_unicast+0x449/0x710 [ 3194.559330][ T253] netlink_sendmsg+0x723/0xbe0 [ 3194.559330][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3194.559330][ T253] ___sys_sendmsg+0xee/0x170 [ 3194.559330][ T253] __sys_sendmsg+0xcd/0x170 [ 3194.559330][ T253] do_syscall_64+0xc6/0x1e0 [ 3194.559330][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3194.559330][ T253] [ 3194.561572][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3194.561572][ T253] netdev_get_by_index+0x5e/0x80 [ 3194.561572][ T253] fib6_nh_init+0x3d8/0x1580 [ 3194.561572][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3194.561572][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3194.561572][ T253] ipv6_add_addr+0x411/0x2000 [ 3194.561572][ T253] inet6_addr_add+0x30e/0xa40 [ 3194.561572][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3194.561572][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3194.561572][ T253] netlink_rcv_skb+0x130/0x360 [ 3194.561572][ T253] netlink_unicast+0x449/0x710 [ 3194.561572][ T253] netlink_sendmsg+0x723/0xbe0 [ 3194.561572][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3194.561572][ T253] ___sys_sendmsg+0xee/0x170 [ 3194.561572][ T253] __sys_sendmsg+0xcd/0x170 [ 3194.561572][ T253] do_syscall_64+0xc6/0x1e0 [ 3194.561572][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3194.561572][ T253] [ 3194.563814][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3194.563814][ T253] netdev_get_by_index+0x5e/0x80 [ 3194.563814][ T253] fib6_nh_init+0x3d8/0x1580 [ 3194.563814][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3194.563814][ T253] ip6_route_add+0x1c/0x140 [ 3194.563814][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3194.563814][ T253] addrconf_add_dev+0xe2/0x170 [ 3194.563814][ T253] inet6_addr_add+0x12f/0xa40 [ 3194.563814][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3194.563814][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3194.563814][ T253] netlink_rcv_skb+0x130/0x360 [ 3194.563814][ T253] netlink_unicast+0x449/0x710 [ 3194.563814][ T253] netlink_sendmsg+0x723/0xbe0 [ 3194.563814][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3194.563814][ T253] ___sys_sendmsg+0xee/0x170 [ 3194.563814][ T253] __sys_sendmsg+0xcd/0x170 [ 3194.563814][ T253] do_syscall_64+0xc6/0x1e0 [ 3194.563814][ T253] [ 3194.566022][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3194.566022][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3194.566022][ T253] ipv6_find_idev+0x102/0x170 [ 3194.566022][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3194.566022][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3194.566022][ T253] netlink_rcv_skb+0x130/0x360 [ 3194.566022][ T253] netlink_unicast+0x449/0x710 [ 3194.566022][ T253] netlink_sendmsg+0x723/0xbe0 [ 3194.566022][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3194.566022][ T253] ___sys_sendmsg+0xee/0x170 [ 3194.566022][ T253] __sys_sendmsg+0xcd/0x170 [ 3194.566022][ T253] do_syscall_64+0xc6/0x1e0 [ 3194.566022][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3194.566022][ T253] [ 3194.567746][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3194.567746][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3194.567746][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3194.567746][ T253] ipv6_find_idev+0x102/0x170 [ 3194.567746][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3194.567746][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3194.567746][ T253] netlink_rcv_skb+0x130/0x360 [ 3194.567746][ T253] netlink_unicast+0x449/0x710 [ 3194.567746][ T253] netlink_sendmsg+0x723/0xbe0 [ 3194.567746][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3194.567746][ T253] ___sys_sendmsg+0xee/0x170 [ 3194.567746][ T253] __sys_sendmsg+0xcd/0x170 [ 3194.567746][ T253] do_syscall_64+0xc6/0x1e0 [ 3194.567746][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3194.567746][ T253] [ 3204.810359][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3204.810843][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3204.810843][ T253] dst_init+0x84/0x4a0 [ 3204.810843][ T253] dst_alloc+0x97/0x150 [ 3204.810843][ T253] ip6_dst_alloc+0x23/0x90 [ 3204.810843][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3204.810843][ T253] ip6_pol_route+0x56f/0x840 [ 3204.810843][ T253] fib6_rule_lookup+0x334/0x630 [ 3204.810843][ T253] ip6_route_output_flags+0x259/0x480 [ 3204.810843][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3204.810843][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3204.810843][ T253] netlink_rcv_skb+0x130/0x360 [ 3204.810843][ T253] netlink_unicast+0x449/0x710 [ 3204.810843][ T253] netlink_sendmsg+0x723/0xbe0 [ 3204.810843][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3204.810843][ T253] ___sys_sendmsg+0xee/0x170 [ 3204.810843][ T253] __sys_sendmsg+0xcd/0x170 [ 3204.810843][ T253] do_syscall_64+0xc6/0x1e0 [ 3204.810843][ T253] [ 3204.813034][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3204.813034][ T253] netdev_get_by_index+0x5e/0x80 [ 3204.813034][ T253] fib6_nh_init+0x3d8/0x1580 [ 3204.813034][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3204.813034][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3204.813034][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3204.813034][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3204.813034][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3204.813034][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3204.813034][ T253] addrconf_dad_begin+0x310/0x670 [ 3204.813034][ T253] addrconf_dad_work+0x10b/0xab0 [ 3204.813034][ T253] process_one_work+0x84d/0x18a0 [ 3204.813034][ T253] worker_thread+0x587/0xd30 [ 3204.813034][ T253] kthread+0x28a/0x350 [ 3204.813034][ T253] ret_from_fork+0x31/0x70 [ 3204.813034][ T253] ret_from_fork_asm+0x1a/0x30 [ 3204.813034][ T253] [ 3204.815183][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3204.815183][ T253] netdev_get_by_index+0x5e/0x80 [ 3204.815183][ T253] fib6_nh_init+0x3d8/0x1580 [ 3204.815183][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3204.815183][ T253] ip6_route_add+0x1c/0x140 [ 3204.815183][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3204.815183][ T253] inet6_addr_add+0x4f8/0xa40 [ 3204.815183][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3204.815183][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3204.815183][ T253] netlink_rcv_skb+0x130/0x360 [ 3204.815183][ T253] netlink_unicast+0x449/0x710 [ 3204.815183][ T253] netlink_sendmsg+0x723/0xbe0 [ 3204.815183][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3204.815183][ T253] ___sys_sendmsg+0xee/0x170 [ 3204.815183][ T253] __sys_sendmsg+0xcd/0x170 [ 3204.815183][ T253] do_syscall_64+0xc6/0x1e0 [ 3204.815183][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3204.815183][ T253] [ 3204.817417][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3204.817417][ T253] netdev_get_by_index+0x5e/0x80 [ 3204.817417][ T253] fib6_nh_init+0x3d8/0x1580 [ 3204.817417][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3204.817417][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3204.817417][ T253] ipv6_add_addr+0x411/0x2000 [ 3204.817417][ T253] inet6_addr_add+0x30e/0xa40 [ 3204.817417][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3204.817417][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3204.817417][ T253] netlink_rcv_skb+0x130/0x360 [ 3204.817417][ T253] netlink_unicast+0x449/0x710 [ 3204.817417][ T253] netlink_sendmsg+0x723/0xbe0 [ 3204.817417][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3204.817417][ T253] ___sys_sendmsg+0xee/0x170 [ 3204.817417][ T253] __sys_sendmsg+0xcd/0x170 [ 3204.817417][ T253] do_syscall_64+0xc6/0x1e0 [ 3204.817417][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3204.817417][ T253] [ 3204.819652][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3204.819652][ T253] netdev_get_by_index+0x5e/0x80 [ 3204.819652][ T253] fib6_nh_init+0x3d8/0x1580 [ 3204.819652][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3204.819652][ T253] ip6_route_add+0x1c/0x140 [ 3204.819652][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3204.819652][ T253] addrconf_add_dev+0xe2/0x170 [ 3204.819652][ T253] inet6_addr_add+0x12f/0xa40 [ 3204.819652][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3204.819652][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3204.819652][ T253] netlink_rcv_skb+0x130/0x360 [ 3204.819652][ T253] netlink_unicast+0x449/0x710 [ 3204.819652][ T253] netlink_sendmsg+0x723/0xbe0 [ 3204.819652][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3204.819652][ T253] ___sys_sendmsg+0xee/0x170 [ 3204.819652][ T253] __sys_sendmsg+0xcd/0x170 [ 3204.819652][ T253] do_syscall_64+0xc6/0x1e0 [ 3204.819652][ T253] [ 3204.821847][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3204.821847][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3204.821847][ T253] ipv6_find_idev+0x102/0x170 [ 3204.821847][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3204.821847][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3204.821847][ T253] netlink_rcv_skb+0x130/0x360 [ 3204.821847][ T253] netlink_unicast+0x449/0x710 [ 3204.821847][ T253] netlink_sendmsg+0x723/0xbe0 [ 3204.821847][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3204.821847][ T253] ___sys_sendmsg+0xee/0x170 [ 3204.821847][ T253] __sys_sendmsg+0xcd/0x170 [ 3204.821847][ T253] do_syscall_64+0xc6/0x1e0 [ 3204.821847][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3204.821847][ T253] [ 3204.823961][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3204.823961][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3204.823961][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3204.823961][ T253] ipv6_find_idev+0x102/0x170 [ 3204.823961][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3204.823961][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3204.823961][ T253] netlink_rcv_skb+0x130/0x360 [ 3204.823961][ T253] netlink_unicast+0x449/0x710 [ 3204.823961][ T253] netlink_sendmsg+0x723/0xbe0 [ 3204.823961][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3204.823961][ T253] ___sys_sendmsg+0xee/0x170 [ 3204.823961][ T253] __sys_sendmsg+0xcd/0x170 [ 3204.823961][ T253] do_syscall_64+0xc6/0x1e0 [ 3204.823961][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3204.823961][ T253] [ 3215.066235][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3215.066702][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3215.066702][ T253] dst_init+0x84/0x4a0 [ 3215.066702][ T253] dst_alloc+0x97/0x150 [ 3215.066702][ T253] ip6_dst_alloc+0x23/0x90 [ 3215.066702][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3215.066702][ T253] ip6_pol_route+0x56f/0x840 [ 3215.066702][ T253] fib6_rule_lookup+0x334/0x630 [ 3215.066702][ T253] ip6_route_output_flags+0x259/0x480 [ 3215.066702][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3215.066702][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3215.066702][ T253] netlink_rcv_skb+0x130/0x360 [ 3215.066702][ T253] netlink_unicast+0x449/0x710 [ 3215.066702][ T253] netlink_sendmsg+0x723/0xbe0 [ 3215.066702][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3215.066702][ T253] ___sys_sendmsg+0xee/0x170 [ 3215.066702][ T253] __sys_sendmsg+0xcd/0x170 [ 3215.066702][ T253] do_syscall_64+0xc6/0x1e0 [ 3215.066702][ T253] [ 3215.068910][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3215.068910][ T253] netdev_get_by_index+0x5e/0x80 [ 3215.068910][ T253] fib6_nh_init+0x3d8/0x1580 [ 3215.068910][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3215.068910][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3215.068910][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3215.068910][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3215.068910][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3215.068910][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3215.068910][ T253] addrconf_dad_begin+0x310/0x670 [ 3215.068910][ T253] addrconf_dad_work+0x10b/0xab0 [ 3215.068910][ T253] process_one_work+0x84d/0x18a0 [ 3215.068910][ T253] worker_thread+0x587/0xd30 [ 3215.068910][ T253] kthread+0x28a/0x350 [ 3215.068910][ T253] ret_from_fork+0x31/0x70 [ 3215.068910][ T253] ret_from_fork_asm+0x1a/0x30 [ 3215.068910][ T253] [ 3215.071045][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3215.071045][ T253] netdev_get_by_index+0x5e/0x80 [ 3215.071045][ T253] fib6_nh_init+0x3d8/0x1580 [ 3215.071045][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3215.071045][ T253] ip6_route_add+0x1c/0x140 [ 3215.071045][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3215.071045][ T253] inet6_addr_add+0x4f8/0xa40 [ 3215.071045][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3215.071045][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3215.071045][ T253] netlink_rcv_skb+0x130/0x360 [ 3215.071045][ T253] netlink_unicast+0x449/0x710 [ 3215.071045][ T253] netlink_sendmsg+0x723/0xbe0 [ 3215.071045][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3215.071045][ T253] ___sys_sendmsg+0xee/0x170 [ 3215.071045][ T253] __sys_sendmsg+0xcd/0x170 [ 3215.071045][ T253] do_syscall_64+0xc6/0x1e0 [ 3215.071045][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3215.071045][ T253] [ 3215.073286][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3215.073286][ T253] netdev_get_by_index+0x5e/0x80 [ 3215.073286][ T253] fib6_nh_init+0x3d8/0x1580 [ 3215.073286][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3215.073286][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3215.073286][ T253] ipv6_add_addr+0x411/0x2000 [ 3215.073286][ T253] inet6_addr_add+0x30e/0xa40 [ 3215.073286][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3215.073286][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3215.073286][ T253] netlink_rcv_skb+0x130/0x360 [ 3215.073286][ T253] netlink_unicast+0x449/0x710 [ 3215.073286][ T253] netlink_sendmsg+0x723/0xbe0 [ 3215.073286][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3215.073286][ T253] ___sys_sendmsg+0xee/0x170 [ 3215.073286][ T253] __sys_sendmsg+0xcd/0x170 [ 3215.073286][ T253] do_syscall_64+0xc6/0x1e0 [ 3215.073286][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3215.073286][ T253] [ 3215.075531][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3215.075531][ T253] netdev_get_by_index+0x5e/0x80 [ 3215.075531][ T253] fib6_nh_init+0x3d8/0x1580 [ 3215.075531][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3215.075531][ T253] ip6_route_add+0x1c/0x140 [ 3215.075531][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3215.075531][ T253] addrconf_add_dev+0xe2/0x170 [ 3215.075531][ T253] inet6_addr_add+0x12f/0xa40 [ 3215.075531][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3215.075531][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3215.075531][ T253] netlink_rcv_skb+0x130/0x360 [ 3215.075531][ T253] netlink_unicast+0x449/0x710 [ 3215.075531][ T253] netlink_sendmsg+0x723/0xbe0 [ 3215.075531][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3215.075531][ T253] ___sys_sendmsg+0xee/0x170 [ 3215.075531][ T253] __sys_sendmsg+0xcd/0x170 [ 3215.075531][ T253] do_syscall_64+0xc6/0x1e0 [ 3215.075531][ T253] [ 3215.077857][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3215.077857][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3215.077857][ T253] ipv6_find_idev+0x102/0x170 [ 3215.077857][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3215.077857][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3215.077857][ T253] netlink_rcv_skb+0x130/0x360 [ 3215.077857][ T253] netlink_unicast+0x449/0x710 [ 3215.077857][ T253] netlink_sendmsg+0x723/0xbe0 [ 3215.077857][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3215.077857][ T253] ___sys_sendmsg+0xee/0x170 [ 3215.077857][ T253] __sys_sendmsg+0xcd/0x170 [ 3215.077857][ T253] do_syscall_64+0xc6/0x1e0 [ 3215.077857][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3215.077857][ T253] [ 3215.079574][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3215.079574][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3215.079574][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3215.079574][ T253] ipv6_find_idev+0x102/0x170 [ 3215.079574][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3215.079574][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3215.079574][ T253] netlink_rcv_skb+0x130/0x360 [ 3215.079574][ T253] netlink_unicast+0x449/0x710 [ 3215.079574][ T253] netlink_sendmsg+0x723/0xbe0 [ 3215.079574][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3215.079574][ T253] ___sys_sendmsg+0xee/0x170 [ 3215.079574][ T253] __sys_sendmsg+0xcd/0x170 [ 3215.079574][ T253] do_syscall_64+0xc6/0x1e0 [ 3215.079574][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3215.079574][ T253] [ 3225.322307][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3225.322776][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3225.322776][ T253] dst_init+0x84/0x4a0 [ 3225.322776][ T253] dst_alloc+0x97/0x150 [ 3225.322776][ T253] ip6_dst_alloc+0x23/0x90 [ 3225.322776][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3225.322776][ T253] ip6_pol_route+0x56f/0x840 [ 3225.322776][ T253] fib6_rule_lookup+0x334/0x630 [ 3225.322776][ T253] ip6_route_output_flags+0x259/0x480 [ 3225.322776][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3225.322776][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3225.322776][ T253] netlink_rcv_skb+0x130/0x360 [ 3225.322776][ T253] netlink_unicast+0x449/0x710 [ 3225.322776][ T253] netlink_sendmsg+0x723/0xbe0 [ 3225.322776][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3225.322776][ T253] ___sys_sendmsg+0xee/0x170 [ 3225.322776][ T253] __sys_sendmsg+0xcd/0x170 [ 3225.322776][ T253] do_syscall_64+0xc6/0x1e0 [ 3225.322776][ T253] [ 3225.325109][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3225.325109][ T253] netdev_get_by_index+0x5e/0x80 [ 3225.325109][ T253] fib6_nh_init+0x3d8/0x1580 [ 3225.325109][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3225.325109][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3225.325109][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3225.325109][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3225.325109][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3225.325109][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3225.325109][ T253] addrconf_dad_begin+0x310/0x670 [ 3225.325109][ T253] addrconf_dad_work+0x10b/0xab0 [ 3225.325109][ T253] process_one_work+0x84d/0x18a0 [ 3225.325109][ T253] worker_thread+0x587/0xd30 [ 3225.325109][ T253] kthread+0x28a/0x350 [ 3225.325109][ T253] ret_from_fork+0x31/0x70 [ 3225.325109][ T253] ret_from_fork_asm+0x1a/0x30 [ 3225.325109][ T253] [ 3225.327252][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3225.327252][ T253] netdev_get_by_index+0x5e/0x80 [ 3225.327252][ T253] fib6_nh_init+0x3d8/0x1580 [ 3225.327252][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3225.327252][ T253] ip6_route_add+0x1c/0x140 [ 3225.327252][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3225.327252][ T253] inet6_addr_add+0x4f8/0xa40 [ 3225.327252][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3225.327252][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3225.327252][ T253] netlink_rcv_skb+0x130/0x360 [ 3225.327252][ T253] netlink_unicast+0x449/0x710 [ 3225.327252][ T253] netlink_sendmsg+0x723/0xbe0 [ 3225.327252][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3225.327252][ T253] ___sys_sendmsg+0xee/0x170 [ 3225.327252][ T253] __sys_sendmsg+0xcd/0x170 [ 3225.327252][ T253] do_syscall_64+0xc6/0x1e0 [ 3225.327252][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3225.327252][ T253] [ 3225.329500][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3225.329500][ T253] netdev_get_by_index+0x5e/0x80 [ 3225.329500][ T253] fib6_nh_init+0x3d8/0x1580 [ 3225.329500][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3225.329500][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3225.329500][ T253] ipv6_add_addr+0x411/0x2000 [ 3225.329500][ T253] inet6_addr_add+0x30e/0xa40 [ 3225.329500][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3225.329500][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3225.329500][ T253] netlink_rcv_skb+0x130/0x360 [ 3225.329500][ T253] netlink_unicast+0x449/0x710 [ 3225.329500][ T253] netlink_sendmsg+0x723/0xbe0 [ 3225.329500][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3225.329500][ T253] ___sys_sendmsg+0xee/0x170 [ 3225.329500][ T253] __sys_sendmsg+0xcd/0x170 [ 3225.329500][ T253] do_syscall_64+0xc6/0x1e0 [ 3225.329500][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3225.329500][ T253] [ 3225.331759][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3225.331759][ T253] netdev_get_by_index+0x5e/0x80 [ 3225.331759][ T253] fib6_nh_init+0x3d8/0x1580 [ 3225.331759][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3225.331759][ T253] ip6_route_add+0x1c/0x140 [ 3225.331759][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3225.331759][ T253] addrconf_add_dev+0xe2/0x170 [ 3225.331759][ T253] inet6_addr_add+0x12f/0xa40 [ 3225.331759][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3225.331759][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3225.331759][ T253] netlink_rcv_skb+0x130/0x360 [ 3225.331759][ T253] netlink_unicast+0x449/0x710 [ 3225.331759][ T253] netlink_sendmsg+0x723/0xbe0 [ 3225.331759][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3225.331759][ T253] ___sys_sendmsg+0xee/0x170 [ 3225.331759][ T253] __sys_sendmsg+0xcd/0x170 [ 3225.331759][ T253] do_syscall_64+0xc6/0x1e0 [ 3225.331759][ T253] [ 3225.333961][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3225.333961][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3225.333961][ T253] ipv6_find_idev+0x102/0x170 [ 3225.333961][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3225.333961][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3225.333961][ T253] netlink_rcv_skb+0x130/0x360 [ 3225.333961][ T253] netlink_unicast+0x449/0x710 [ 3225.333961][ T253] netlink_sendmsg+0x723/0xbe0 [ 3225.333961][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3225.333961][ T253] ___sys_sendmsg+0xee/0x170 [ 3225.333961][ T253] __sys_sendmsg+0xcd/0x170 [ 3225.333961][ T253] do_syscall_64+0xc6/0x1e0 [ 3225.333961][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3225.333961][ T253] [ 3225.335814][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3225.335814][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3225.335814][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3225.335814][ T253] ipv6_find_idev+0x102/0x170 [ 3225.335814][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3225.335814][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3225.335814][ T253] netlink_rcv_skb+0x130/0x360 [ 3225.335814][ T253] netlink_unicast+0x449/0x710 [ 3225.335814][ T253] netlink_sendmsg+0x723/0xbe0 [ 3225.335814][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3225.335814][ T253] ___sys_sendmsg+0xee/0x170 [ 3225.335814][ T253] __sys_sendmsg+0xcd/0x170 [ 3225.335814][ T253] do_syscall_64+0xc6/0x1e0 [ 3225.335814][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3225.335814][ T253] [ 3235.578289][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3235.578767][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3235.578767][ T253] dst_init+0x84/0x4a0 [ 3235.578767][ T253] dst_alloc+0x97/0x150 [ 3235.578767][ T253] ip6_dst_alloc+0x23/0x90 [ 3235.578767][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3235.578767][ T253] ip6_pol_route+0x56f/0x840 [ 3235.578767][ T253] fib6_rule_lookup+0x334/0x630 [ 3235.578767][ T253] ip6_route_output_flags+0x259/0x480 [ 3235.578767][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3235.578767][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3235.578767][ T253] netlink_rcv_skb+0x130/0x360 [ 3235.578767][ T253] netlink_unicast+0x449/0x710 [ 3235.578767][ T253] netlink_sendmsg+0x723/0xbe0 [ 3235.578767][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3235.578767][ T253] ___sys_sendmsg+0xee/0x170 [ 3235.578767][ T253] __sys_sendmsg+0xcd/0x170 [ 3235.578767][ T253] do_syscall_64+0xc6/0x1e0 [ 3235.578767][ T253] [ 3235.580964][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3235.580964][ T253] netdev_get_by_index+0x5e/0x80 [ 3235.580964][ T253] fib6_nh_init+0x3d8/0x1580 [ 3235.580964][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3235.580964][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3235.580964][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3235.580964][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3235.580964][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3235.580964][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3235.580964][ T253] addrconf_dad_begin+0x310/0x670 [ 3235.580964][ T253] addrconf_dad_work+0x10b/0xab0 [ 3235.580964][ T253] process_one_work+0x84d/0x18a0 [ 3235.580964][ T253] worker_thread+0x587/0xd30 [ 3235.580964][ T253] kthread+0x28a/0x350 [ 3235.580964][ T253] ret_from_fork+0x31/0x70 [ 3235.580964][ T253] ret_from_fork_asm+0x1a/0x30 [ 3235.580964][ T253] [ 3235.583103][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3235.583103][ T253] netdev_get_by_index+0x5e/0x80 [ 3235.583103][ T253] fib6_nh_init+0x3d8/0x1580 [ 3235.583103][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3235.583103][ T253] ip6_route_add+0x1c/0x140 [ 3235.583103][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3235.583103][ T253] inet6_addr_add+0x4f8/0xa40 [ 3235.583103][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3235.583103][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3235.583103][ T253] netlink_rcv_skb+0x130/0x360 [ 3235.583103][ T253] netlink_unicast+0x449/0x710 [ 3235.583103][ T253] netlink_sendmsg+0x723/0xbe0 [ 3235.583103][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3235.583103][ T253] ___sys_sendmsg+0xee/0x170 [ 3235.583103][ T253] __sys_sendmsg+0xcd/0x170 [ 3235.583103][ T253] do_syscall_64+0xc6/0x1e0 [ 3235.583103][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3235.583103][ T253] [ 3235.585345][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3235.585345][ T253] netdev_get_by_index+0x5e/0x80 [ 3235.585345][ T253] fib6_nh_init+0x3d8/0x1580 [ 3235.585345][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3235.585345][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3235.585345][ T253] ipv6_add_addr+0x411/0x2000 [ 3235.585345][ T253] inet6_addr_add+0x30e/0xa40 [ 3235.585345][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3235.585345][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3235.585345][ T253] netlink_rcv_skb+0x130/0x360 [ 3235.585345][ T253] netlink_unicast+0x449/0x710 [ 3235.585345][ T253] netlink_sendmsg+0x723/0xbe0 [ 3235.585345][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3235.585345][ T253] ___sys_sendmsg+0xee/0x170 [ 3235.585345][ T253] __sys_sendmsg+0xcd/0x170 [ 3235.585345][ T253] do_syscall_64+0xc6/0x1e0 [ 3235.585345][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3235.585345][ T253] [ 3235.587585][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3235.587585][ T253] netdev_get_by_index+0x5e/0x80 [ 3235.587585][ T253] fib6_nh_init+0x3d8/0x1580 [ 3235.587585][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3235.587585][ T253] ip6_route_add+0x1c/0x140 [ 3235.587585][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3235.587585][ T253] addrconf_add_dev+0xe2/0x170 [ 3235.587585][ T253] inet6_addr_add+0x12f/0xa40 [ 3235.587585][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3235.587585][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3235.587585][ T253] netlink_rcv_skb+0x130/0x360 [ 3235.587585][ T253] netlink_unicast+0x449/0x710 [ 3235.587585][ T253] netlink_sendmsg+0x723/0xbe0 [ 3235.587585][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3235.587585][ T253] ___sys_sendmsg+0xee/0x170 [ 3235.587585][ T253] __sys_sendmsg+0xcd/0x170 [ 3235.587585][ T253] do_syscall_64+0xc6/0x1e0 [ 3235.587585][ T253] [ 3235.589790][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3235.589790][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3235.589790][ T253] ipv6_find_idev+0x102/0x170 [ 3235.589790][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3235.589790][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3235.589790][ T253] netlink_rcv_skb+0x130/0x360 [ 3235.589790][ T253] netlink_unicast+0x449/0x710 [ 3235.589790][ T253] netlink_sendmsg+0x723/0xbe0 [ 3235.589790][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3235.589790][ T253] ___sys_sendmsg+0xee/0x170 [ 3235.589790][ T253] __sys_sendmsg+0xcd/0x170 [ 3235.589790][ T253] do_syscall_64+0xc6/0x1e0 [ 3235.589790][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3235.589790][ T253] [ 3235.591514][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3235.591514][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3235.591514][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3235.591514][ T253] ipv6_find_idev+0x102/0x170 [ 3235.591514][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3235.591514][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3235.591514][ T253] netlink_rcv_skb+0x130/0x360 [ 3235.591514][ T253] netlink_unicast+0x449/0x710 [ 3235.591514][ T253] netlink_sendmsg+0x723/0xbe0 [ 3235.591514][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3235.591514][ T253] ___sys_sendmsg+0xee/0x170 [ 3235.591514][ T253] __sys_sendmsg+0xcd/0x170 [ 3235.591514][ T253] do_syscall_64+0xc6/0x1e0 [ 3235.591514][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3235.591514][ T253] [ 3245.714299][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3245.714796][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3245.714796][ T253] dst_init+0x84/0x4a0 [ 3245.714796][ T253] dst_alloc+0x97/0x150 [ 3245.714796][ T253] ip6_dst_alloc+0x23/0x90 [ 3245.714796][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3245.714796][ T253] ip6_pol_route+0x56f/0x840 [ 3245.714796][ T253] fib6_rule_lookup+0x334/0x630 [ 3245.714796][ T253] ip6_route_output_flags+0x259/0x480 [ 3245.714796][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3245.714796][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3245.714796][ T253] netlink_rcv_skb+0x130/0x360 [ 3245.714796][ T253] netlink_unicast+0x449/0x710 [ 3245.714796][ T253] netlink_sendmsg+0x723/0xbe0 [ 3245.714796][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3245.714796][ T253] ___sys_sendmsg+0xee/0x170 [ 3245.714796][ T253] __sys_sendmsg+0xcd/0x170 [ 3245.714796][ T253] do_syscall_64+0xc6/0x1e0 [ 3245.714796][ T253] [ 3245.717460][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3245.717460][ T253] netdev_get_by_index+0x5e/0x80 [ 3245.717460][ T253] fib6_nh_init+0x3d8/0x1580 [ 3245.717460][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3245.717460][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3245.717460][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3245.717460][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3245.717460][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3245.717460][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3245.717460][ T253] addrconf_dad_begin+0x310/0x670 [ 3245.717460][ T253] addrconf_dad_work+0x10b/0xab0 [ 3245.717460][ T253] process_one_work+0x84d/0x18a0 [ 3245.717460][ T253] worker_thread+0x587/0xd30 [ 3245.717460][ T253] kthread+0x28a/0x350 [ 3245.717460][ T253] ret_from_fork+0x31/0x70 [ 3245.717460][ T253] ret_from_fork_asm+0x1a/0x30 [ 3245.717460][ T253] [ 3245.720068][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3245.720068][ T253] netdev_get_by_index+0x5e/0x80 [ 3245.720068][ T253] fib6_nh_init+0x3d8/0x1580 [ 3245.720068][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3245.720068][ T253] ip6_route_add+0x1c/0x140 [ 3245.720068][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3245.720068][ T253] inet6_addr_add+0x4f8/0xa40 [ 3245.720068][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3245.720068][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3245.720068][ T253] netlink_rcv_skb+0x130/0x360 [ 3245.720068][ T253] netlink_unicast+0x449/0x710 [ 3245.720068][ T253] netlink_sendmsg+0x723/0xbe0 [ 3245.720068][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3245.720068][ T253] ___sys_sendmsg+0xee/0x170 [ 3245.720068][ T253] __sys_sendmsg+0xcd/0x170 [ 3245.720068][ T253] do_syscall_64+0xc6/0x1e0 [ 3245.720068][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3245.720068][ T253] [ 3245.722801][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3245.722801][ T253] netdev_get_by_index+0x5e/0x80 [ 3245.722801][ T253] fib6_nh_init+0x3d8/0x1580 [ 3245.722801][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3245.722801][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3245.722801][ T253] ipv6_add_addr+0x411/0x2000 [ 3245.722801][ T253] inet6_addr_add+0x30e/0xa40 [ 3245.722801][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3245.722801][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3245.722801][ T253] netlink_rcv_skb+0x130/0x360 [ 3245.722801][ T253] netlink_unicast+0x449/0x710 [ 3245.722801][ T253] netlink_sendmsg+0x723/0xbe0 [ 3245.722801][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3245.722801][ T253] ___sys_sendmsg+0xee/0x170 [ 3245.722801][ T253] __sys_sendmsg+0xcd/0x170 [ 3245.722801][ T253] do_syscall_64+0xc6/0x1e0 [ 3245.722801][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3245.722801][ T253] [ 3245.725532][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3245.725532][ T253] netdev_get_by_index+0x5e/0x80 [ 3245.725532][ T253] fib6_nh_init+0x3d8/0x1580 [ 3245.725532][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3245.725532][ T253] ip6_route_add+0x1c/0x140 [ 3245.725532][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3245.725532][ T253] addrconf_add_dev+0xe2/0x170 [ 3245.725532][ T253] inet6_addr_add+0x12f/0xa40 [ 3245.725532][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3245.725532][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3245.725532][ T253] netlink_rcv_skb+0x130/0x360 [ 3245.725532][ T253] netlink_unicast+0x449/0x710 [ 3245.725532][ T253] netlink_sendmsg+0x723/0xbe0 [ 3245.725532][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3245.725532][ T253] ___sys_sendmsg+0xee/0x170 [ 3245.725532][ T253] __sys_sendmsg+0xcd/0x170 [ 3245.725532][ T253] do_syscall_64+0xc6/0x1e0 [ 3245.725532][ T253] [ 3245.728209][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3245.728209][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3245.728209][ T253] ipv6_find_idev+0x102/0x170 [ 3245.728209][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3245.728209][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3245.728209][ T253] netlink_rcv_skb+0x130/0x360 [ 3245.728209][ T253] netlink_unicast+0x449/0x710 [ 3245.728209][ T253] netlink_sendmsg+0x723/0xbe0 [ 3245.728209][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3245.728209][ T253] ___sys_sendmsg+0xee/0x170 [ 3245.728209][ T253] __sys_sendmsg+0xcd/0x170 [ 3245.728209][ T253] do_syscall_64+0xc6/0x1e0 [ 3245.728209][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3245.728209][ T253] [ 3245.730303][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3245.730303][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3245.730303][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3245.730303][ T253] ipv6_find_idev+0x102/0x170 [ 3245.730303][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3245.730303][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3245.730303][ T253] netlink_rcv_skb+0x130/0x360 [ 3245.730303][ T253] netlink_unicast+0x449/0x710 [ 3245.730303][ T253] netlink_sendmsg+0x723/0xbe0 [ 3245.730303][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3245.730303][ T253] ___sys_sendmsg+0xee/0x170 [ 3245.730303][ T253] __sys_sendmsg+0xcd/0x170 [ 3245.730303][ T253] do_syscall_64+0xc6/0x1e0 [ 3245.730303][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3245.730303][ T253] [ 3255.978244][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3255.978733][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3255.978733][ T253] dst_init+0x84/0x4a0 [ 3255.978733][ T253] dst_alloc+0x97/0x150 [ 3255.978733][ T253] ip6_dst_alloc+0x23/0x90 [ 3255.978733][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3255.978733][ T253] ip6_pol_route+0x56f/0x840 [ 3255.978733][ T253] fib6_rule_lookup+0x334/0x630 [ 3255.978733][ T253] ip6_route_output_flags+0x259/0x480 [ 3255.978733][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3255.978733][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3255.978733][ T253] netlink_rcv_skb+0x130/0x360 [ 3255.978733][ T253] netlink_unicast+0x449/0x710 [ 3255.978733][ T253] netlink_sendmsg+0x723/0xbe0 [ 3255.978733][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3255.978733][ T253] ___sys_sendmsg+0xee/0x170 [ 3255.978733][ T253] __sys_sendmsg+0xcd/0x170 [ 3255.978733][ T253] do_syscall_64+0xc6/0x1e0 [ 3255.978733][ T253] [ 3255.980938][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3255.980938][ T253] netdev_get_by_index+0x5e/0x80 [ 3255.980938][ T253] fib6_nh_init+0x3d8/0x1580 [ 3255.980938][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3255.980938][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3255.980938][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3255.980938][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3255.980938][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3255.980938][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3255.980938][ T253] addrconf_dad_begin+0x310/0x670 [ 3255.980938][ T253] addrconf_dad_work+0x10b/0xab0 [ 3255.980938][ T253] process_one_work+0x84d/0x18a0 [ 3255.980938][ T253] worker_thread+0x587/0xd30 [ 3255.980938][ T253] kthread+0x28a/0x350 [ 3255.980938][ T253] ret_from_fork+0x31/0x70 [ 3255.980938][ T253] ret_from_fork_asm+0x1a/0x30 [ 3255.980938][ T253] [ 3255.983074][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3255.983074][ T253] netdev_get_by_index+0x5e/0x80 [ 3255.983074][ T253] fib6_nh_init+0x3d8/0x1580 [ 3255.983074][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3255.983074][ T253] ip6_route_add+0x1c/0x140 [ 3255.983074][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3255.983074][ T253] inet6_addr_add+0x4f8/0xa40 [ 3255.983074][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3255.983074][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3255.983074][ T253] netlink_rcv_skb+0x130/0x360 [ 3255.983074][ T253] netlink_unicast+0x449/0x710 [ 3255.983074][ T253] netlink_sendmsg+0x723/0xbe0 [ 3255.983074][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3255.983074][ T253] ___sys_sendmsg+0xee/0x170 [ 3255.983074][ T253] __sys_sendmsg+0xcd/0x170 [ 3255.983074][ T253] do_syscall_64+0xc6/0x1e0 [ 3255.983074][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3255.983074][ T253] [ 3255.985319][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3255.985319][ T253] netdev_get_by_index+0x5e/0x80 [ 3255.985319][ T253] fib6_nh_init+0x3d8/0x1580 [ 3255.985319][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3255.985319][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3255.985319][ T253] ipv6_add_addr+0x411/0x2000 [ 3255.985319][ T253] inet6_addr_add+0x30e/0xa40 [ 3255.985319][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3255.985319][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3255.985319][ T253] netlink_rcv_skb+0x130/0x360 [ 3255.985319][ T253] netlink_unicast+0x449/0x710 [ 3255.985319][ T253] netlink_sendmsg+0x723/0xbe0 [ 3255.985319][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3255.985319][ T253] ___sys_sendmsg+0xee/0x170 [ 3255.985319][ T253] __sys_sendmsg+0xcd/0x170 [ 3255.985319][ T253] do_syscall_64+0xc6/0x1e0 [ 3255.985319][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3255.985319][ T253] [ 3255.987561][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3255.987561][ T253] netdev_get_by_index+0x5e/0x80 [ 3255.987561][ T253] fib6_nh_init+0x3d8/0x1580 [ 3255.987561][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3255.987561][ T253] ip6_route_add+0x1c/0x140 [ 3255.987561][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3255.987561][ T253] addrconf_add_dev+0xe2/0x170 [ 3255.987561][ T253] inet6_addr_add+0x12f/0xa40 [ 3255.987561][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3255.987561][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3255.987561][ T253] netlink_rcv_skb+0x130/0x360 [ 3255.987561][ T253] netlink_unicast+0x449/0x710 [ 3255.987561][ T253] netlink_sendmsg+0x723/0xbe0 [ 3255.987561][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3255.987561][ T253] ___sys_sendmsg+0xee/0x170 [ 3255.987561][ T253] __sys_sendmsg+0xcd/0x170 [ 3255.987561][ T253] do_syscall_64+0xc6/0x1e0 [ 3255.987561][ T253] [ 3255.989751][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3255.989751][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3255.989751][ T253] ipv6_find_idev+0x102/0x170 [ 3255.989751][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3255.989751][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3255.989751][ T253] netlink_rcv_skb+0x130/0x360 [ 3255.989751][ T253] netlink_unicast+0x449/0x710 [ 3255.989751][ T253] netlink_sendmsg+0x723/0xbe0 [ 3255.989751][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3255.989751][ T253] ___sys_sendmsg+0xee/0x170 [ 3255.989751][ T253] __sys_sendmsg+0xcd/0x170 [ 3255.989751][ T253] do_syscall_64+0xc6/0x1e0 [ 3255.989751][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3255.989751][ T253] [ 3255.991473][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3255.991473][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3255.991473][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3255.991473][ T253] ipv6_find_idev+0x102/0x170 [ 3255.991473][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3255.991473][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3255.991473][ T253] netlink_rcv_skb+0x130/0x360 [ 3255.991473][ T253] netlink_unicast+0x449/0x710 [ 3255.991473][ T253] netlink_sendmsg+0x723/0xbe0 [ 3255.991473][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3255.991473][ T253] ___sys_sendmsg+0xee/0x170 [ 3255.991473][ T253] __sys_sendmsg+0xcd/0x170 [ 3255.991473][ T253] do_syscall_64+0xc6/0x1e0 [ 3255.991473][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3255.991473][ T253] [ 3266.242305][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3266.242854][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3266.242854][ T253] dst_init+0x84/0x4a0 [ 3266.242854][ T253] dst_alloc+0x97/0x150 [ 3266.242854][ T253] ip6_dst_alloc+0x23/0x90 [ 3266.242854][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3266.242854][ T253] ip6_pol_route+0x56f/0x840 [ 3266.242854][ T253] fib6_rule_lookup+0x334/0x630 [ 3266.242854][ T253] ip6_route_output_flags+0x259/0x480 [ 3266.242854][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3266.242854][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3266.242854][ T253] netlink_rcv_skb+0x130/0x360 [ 3266.242854][ T253] netlink_unicast+0x449/0x710 [ 3266.242854][ T253] netlink_sendmsg+0x723/0xbe0 [ 3266.242854][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3266.242854][ T253] ___sys_sendmsg+0xee/0x170 [ 3266.242854][ T253] __sys_sendmsg+0xcd/0x170 [ 3266.242854][ T253] do_syscall_64+0xc6/0x1e0 [ 3266.242854][ T253] [ 3266.245150][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3266.245150][ T253] netdev_get_by_index+0x5e/0x80 [ 3266.245150][ T253] fib6_nh_init+0x3d8/0x1580 [ 3266.245150][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3266.245150][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3266.245150][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3266.245150][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3266.245150][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3266.245150][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3266.245150][ T253] addrconf_dad_begin+0x310/0x670 [ 3266.245150][ T253] addrconf_dad_work+0x10b/0xab0 [ 3266.245150][ T253] process_one_work+0x84d/0x18a0 [ 3266.245150][ T253] worker_thread+0x587/0xd30 [ 3266.245150][ T253] kthread+0x28a/0x350 [ 3266.245150][ T253] ret_from_fork+0x31/0x70 [ 3266.245150][ T253] ret_from_fork_asm+0x1a/0x30 [ 3266.245150][ T253] [ 3266.247393][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3266.247393][ T253] netdev_get_by_index+0x5e/0x80 [ 3266.247393][ T253] fib6_nh_init+0x3d8/0x1580 [ 3266.247393][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3266.247393][ T253] ip6_route_add+0x1c/0x140 [ 3266.247393][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3266.247393][ T253] inet6_addr_add+0x4f8/0xa40 [ 3266.247393][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3266.247393][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3266.247393][ T253] netlink_rcv_skb+0x130/0x360 [ 3266.247393][ T253] netlink_unicast+0x449/0x710 [ 3266.247393][ T253] netlink_sendmsg+0x723/0xbe0 [ 3266.247393][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3266.247393][ T253] ___sys_sendmsg+0xee/0x170 [ 3266.247393][ T253] __sys_sendmsg+0xcd/0x170 [ 3266.247393][ T253] do_syscall_64+0xc6/0x1e0 [ 3266.247393][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3266.247393][ T253] [ 3266.249718][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3266.249718][ T253] netdev_get_by_index+0x5e/0x80 [ 3266.249718][ T253] fib6_nh_init+0x3d8/0x1580 [ 3266.249718][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3266.249718][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3266.249718][ T253] ipv6_add_addr+0x411/0x2000 [ 3266.249718][ T253] inet6_addr_add+0x30e/0xa40 [ 3266.249718][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3266.249718][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3266.249718][ T253] netlink_rcv_skb+0x130/0x360 [ 3266.249718][ T253] netlink_unicast+0x449/0x710 [ 3266.249718][ T253] netlink_sendmsg+0x723/0xbe0 [ 3266.249718][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3266.249718][ T253] ___sys_sendmsg+0xee/0x170 [ 3266.249718][ T253] __sys_sendmsg+0xcd/0x170 [ 3266.249718][ T253] do_syscall_64+0xc6/0x1e0 [ 3266.249718][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3266.249718][ T253] [ 3266.252047][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3266.252047][ T253] netdev_get_by_index+0x5e/0x80 [ 3266.252047][ T253] fib6_nh_init+0x3d8/0x1580 [ 3266.252047][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3266.252047][ T253] ip6_route_add+0x1c/0x140 [ 3266.252047][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3266.252047][ T253] addrconf_add_dev+0xe2/0x170 [ 3266.252047][ T253] inet6_addr_add+0x12f/0xa40 [ 3266.252047][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3266.252047][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3266.252047][ T253] netlink_rcv_skb+0x130/0x360 [ 3266.252047][ T253] netlink_unicast+0x449/0x710 [ 3266.252047][ T253] netlink_sendmsg+0x723/0xbe0 [ 3266.252047][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3266.252047][ T253] ___sys_sendmsg+0xee/0x170 [ 3266.252047][ T253] __sys_sendmsg+0xcd/0x170 [ 3266.252047][ T253] do_syscall_64+0xc6/0x1e0 [ 3266.252047][ T253] [ 3266.254351][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3266.254351][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3266.254351][ T253] ipv6_find_idev+0x102/0x170 [ 3266.254351][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3266.254351][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3266.254351][ T253] netlink_rcv_skb+0x130/0x360 [ 3266.254351][ T253] netlink_unicast+0x449/0x710 [ 3266.254351][ T253] netlink_sendmsg+0x723/0xbe0 [ 3266.254351][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3266.254351][ T253] ___sys_sendmsg+0xee/0x170 [ 3266.254351][ T253] __sys_sendmsg+0xcd/0x170 [ 3266.254351][ T253] do_syscall_64+0xc6/0x1e0 [ 3266.254351][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3266.254351][ T253] [ 3266.256142][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3266.256142][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3266.256142][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3266.256142][ T253] ipv6_find_idev+0x102/0x170 [ 3266.256142][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3266.256142][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3266.256142][ T253] netlink_rcv_skb+0x130/0x360 [ 3266.256142][ T253] netlink_unicast+0x449/0x710 [ 3266.256142][ T253] netlink_sendmsg+0x723/0xbe0 [ 3266.256142][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3266.256142][ T253] ___sys_sendmsg+0xee/0x170 [ 3266.256142][ T253] __sys_sendmsg+0xcd/0x170 [ 3266.256142][ T253] do_syscall_64+0xc6/0x1e0 [ 3266.256142][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3266.256142][ T253] [ 3276.506306][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3276.506802][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3276.506802][ T253] dst_init+0x84/0x4a0 [ 3276.506802][ T253] dst_alloc+0x97/0x150 [ 3276.506802][ T253] ip6_dst_alloc+0x23/0x90 [ 3276.506802][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3276.506802][ T253] ip6_pol_route+0x56f/0x840 [ 3276.506802][ T253] fib6_rule_lookup+0x334/0x630 [ 3276.506802][ T253] ip6_route_output_flags+0x259/0x480 [ 3276.506802][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3276.506802][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3276.506802][ T253] netlink_rcv_skb+0x130/0x360 [ 3276.506802][ T253] netlink_unicast+0x449/0x710 [ 3276.506802][ T253] netlink_sendmsg+0x723/0xbe0 [ 3276.506802][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3276.506802][ T253] ___sys_sendmsg+0xee/0x170 [ 3276.506802][ T253] __sys_sendmsg+0xcd/0x170 [ 3276.506802][ T253] do_syscall_64+0xc6/0x1e0 [ 3276.506802][ T253] [ 3276.509112][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3276.509112][ T253] netdev_get_by_index+0x5e/0x80 [ 3276.509112][ T253] fib6_nh_init+0x3d8/0x1580 [ 3276.509112][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3276.509112][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3276.509112][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3276.509112][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3276.509112][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3276.509112][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3276.509112][ T253] addrconf_dad_begin+0x310/0x670 [ 3276.509112][ T253] addrconf_dad_work+0x10b/0xab0 [ 3276.509112][ T253] process_one_work+0x84d/0x18a0 [ 3276.509112][ T253] worker_thread+0x587/0xd30 [ 3276.509112][ T253] kthread+0x28a/0x350 [ 3276.509112][ T253] ret_from_fork+0x31/0x70 [ 3276.509112][ T253] ret_from_fork_asm+0x1a/0x30 [ 3276.509112][ T253] [ 3276.511344][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3276.511344][ T253] netdev_get_by_index+0x5e/0x80 [ 3276.511344][ T253] fib6_nh_init+0x3d8/0x1580 [ 3276.511344][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3276.511344][ T253] ip6_route_add+0x1c/0x140 [ 3276.511344][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3276.511344][ T253] inet6_addr_add+0x4f8/0xa40 [ 3276.511344][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3276.511344][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3276.511344][ T253] netlink_rcv_skb+0x130/0x360 [ 3276.511344][ T253] netlink_unicast+0x449/0x710 [ 3276.511344][ T253] netlink_sendmsg+0x723/0xbe0 [ 3276.511344][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3276.511344][ T253] ___sys_sendmsg+0xee/0x170 [ 3276.511344][ T253] __sys_sendmsg+0xcd/0x170 [ 3276.511344][ T253] do_syscall_64+0xc6/0x1e0 [ 3276.511344][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3276.511344][ T253] [ 3276.513679][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3276.513679][ T253] netdev_get_by_index+0x5e/0x80 [ 3276.513679][ T253] fib6_nh_init+0x3d8/0x1580 [ 3276.513679][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3276.513679][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3276.513679][ T253] ipv6_add_addr+0x411/0x2000 [ 3276.513679][ T253] inet6_addr_add+0x30e/0xa40 [ 3276.513679][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3276.513679][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3276.513679][ T253] netlink_rcv_skb+0x130/0x360 [ 3276.513679][ T253] netlink_unicast+0x449/0x710 [ 3276.513679][ T253] netlink_sendmsg+0x723/0xbe0 [ 3276.513679][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3276.513679][ T253] ___sys_sendmsg+0xee/0x170 [ 3276.513679][ T253] __sys_sendmsg+0xcd/0x170 [ 3276.513679][ T253] do_syscall_64+0xc6/0x1e0 [ 3276.513679][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3276.513679][ T253] [ 3276.516027][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3276.516027][ T253] netdev_get_by_index+0x5e/0x80 [ 3276.516027][ T253] fib6_nh_init+0x3d8/0x1580 [ 3276.516027][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3276.516027][ T253] ip6_route_add+0x1c/0x140 [ 3276.516027][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3276.516027][ T253] addrconf_add_dev+0xe2/0x170 [ 3276.516027][ T253] inet6_addr_add+0x12f/0xa40 [ 3276.516027][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3276.516027][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3276.516027][ T253] netlink_rcv_skb+0x130/0x360 [ 3276.516027][ T253] netlink_unicast+0x449/0x710 [ 3276.516027][ T253] netlink_sendmsg+0x723/0xbe0 [ 3276.516027][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3276.516027][ T253] ___sys_sendmsg+0xee/0x170 [ 3276.516027][ T253] __sys_sendmsg+0xcd/0x170 [ 3276.516027][ T253] do_syscall_64+0xc6/0x1e0 [ 3276.516027][ T253] [ 3276.518323][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3276.518323][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3276.518323][ T253] ipv6_find_idev+0x102/0x170 [ 3276.518323][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3276.518323][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3276.518323][ T253] netlink_rcv_skb+0x130/0x360 [ 3276.518323][ T253] netlink_unicast+0x449/0x710 [ 3276.518323][ T253] netlink_sendmsg+0x723/0xbe0 [ 3276.518323][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3276.518323][ T253] ___sys_sendmsg+0xee/0x170 [ 3276.518323][ T253] __sys_sendmsg+0xcd/0x170 [ 3276.518323][ T253] do_syscall_64+0xc6/0x1e0 [ 3276.518323][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3276.518323][ T253] [ 3276.520120][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3276.520120][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3276.520120][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3276.520120][ T253] ipv6_find_idev+0x102/0x170 [ 3276.520120][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3276.520120][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3276.520120][ T253] netlink_rcv_skb+0x130/0x360 [ 3276.520120][ T253] netlink_unicast+0x449/0x710 [ 3276.520120][ T253] netlink_sendmsg+0x723/0xbe0 [ 3276.520120][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3276.520120][ T253] ___sys_sendmsg+0xee/0x170 [ 3276.520120][ T253] __sys_sendmsg+0xcd/0x170 [ 3276.520120][ T253] do_syscall_64+0xc6/0x1e0 [ 3276.520120][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3276.520120][ T253] [ 3286.842407][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3286.842922][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3286.842922][ T253] dst_init+0x84/0x4a0 [ 3286.842922][ T253] dst_alloc+0x97/0x150 [ 3286.842922][ T253] ip6_dst_alloc+0x23/0x90 [ 3286.842922][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3286.842922][ T253] ip6_pol_route+0x56f/0x840 [ 3286.842922][ T253] fib6_rule_lookup+0x334/0x630 [ 3286.842922][ T253] ip6_route_output_flags+0x259/0x480 [ 3286.842922][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3286.842922][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3286.842922][ T253] netlink_rcv_skb+0x130/0x360 [ 3286.842922][ T253] netlink_unicast+0x449/0x710 [ 3286.842922][ T253] netlink_sendmsg+0x723/0xbe0 [ 3286.842922][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3286.842922][ T253] ___sys_sendmsg+0xee/0x170 [ 3286.842922][ T253] __sys_sendmsg+0xcd/0x170 [ 3286.842922][ T253] do_syscall_64+0xc6/0x1e0 [ 3286.842922][ T253] [ 3286.845248][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3286.845248][ T253] netdev_get_by_index+0x5e/0x80 [ 3286.845248][ T253] fib6_nh_init+0x3d8/0x1580 [ 3286.845248][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3286.845248][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3286.845248][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3286.845248][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3286.845248][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3286.845248][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3286.845248][ T253] addrconf_dad_begin+0x310/0x670 [ 3286.845248][ T253] addrconf_dad_work+0x10b/0xab0 [ 3286.845248][ T253] process_one_work+0x84d/0x18a0 [ 3286.845248][ T253] worker_thread+0x587/0xd30 [ 3286.845248][ T253] kthread+0x28a/0x350 [ 3286.845248][ T253] ret_from_fork+0x31/0x70 [ 3286.845248][ T253] ret_from_fork_asm+0x1a/0x30 [ 3286.845248][ T253] [ 3286.847504][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3286.847504][ T253] netdev_get_by_index+0x5e/0x80 [ 3286.847504][ T253] fib6_nh_init+0x3d8/0x1580 [ 3286.847504][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3286.847504][ T253] ip6_route_add+0x1c/0x140 [ 3286.847504][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3286.847504][ T253] inet6_addr_add+0x4f8/0xa40 [ 3286.847504][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3286.847504][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3286.847504][ T253] netlink_rcv_skb+0x130/0x360 [ 3286.847504][ T253] netlink_unicast+0x449/0x710 [ 3286.847504][ T253] netlink_sendmsg+0x723/0xbe0 [ 3286.847504][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3286.847504][ T253] ___sys_sendmsg+0xee/0x170 [ 3286.847504][ T253] __sys_sendmsg+0xcd/0x170 [ 3286.847504][ T253] do_syscall_64+0xc6/0x1e0 [ 3286.847504][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3286.847504][ T253] [ 3286.850131][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3286.850131][ T253] netdev_get_by_index+0x5e/0x80 [ 3286.850131][ T253] fib6_nh_init+0x3d8/0x1580 [ 3286.850131][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3286.850131][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3286.850131][ T253] ipv6_add_addr+0x411/0x2000 [ 3286.850131][ T253] inet6_addr_add+0x30e/0xa40 [ 3286.850131][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3286.850131][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3286.850131][ T253] netlink_rcv_skb+0x130/0x360 [ 3286.850131][ T253] netlink_unicast+0x449/0x710 [ 3286.850131][ T253] netlink_sendmsg+0x723/0xbe0 [ 3286.850131][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3286.850131][ T253] ___sys_sendmsg+0xee/0x170 [ 3286.850131][ T253] __sys_sendmsg+0xcd/0x170 [ 3286.850131][ T253] do_syscall_64+0xc6/0x1e0 [ 3286.850131][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3286.850131][ T253] [ 3286.852494][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3286.852494][ T253] netdev_get_by_index+0x5e/0x80 [ 3286.852494][ T253] fib6_nh_init+0x3d8/0x1580 [ 3286.852494][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3286.852494][ T253] ip6_route_add+0x1c/0x140 [ 3286.852494][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3286.852494][ T253] addrconf_add_dev+0xe2/0x170 [ 3286.852494][ T253] inet6_addr_add+0x12f/0xa40 [ 3286.852494][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3286.852494][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3286.852494][ T253] netlink_rcv_skb+0x130/0x360 [ 3286.852494][ T253] netlink_unicast+0x449/0x710 [ 3286.852494][ T253] netlink_sendmsg+0x723/0xbe0 [ 3286.852494][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3286.852494][ T253] ___sys_sendmsg+0xee/0x170 [ 3286.852494][ T253] __sys_sendmsg+0xcd/0x170 [ 3286.852494][ T253] do_syscall_64+0xc6/0x1e0 [ 3286.852494][ T253] [ 3286.854818][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3286.854818][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3286.854818][ T253] ipv6_find_idev+0x102/0x170 [ 3286.854818][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3286.854818][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3286.854818][ T253] netlink_rcv_skb+0x130/0x360 [ 3286.854818][ T253] netlink_unicast+0x449/0x710 [ 3286.854818][ T253] netlink_sendmsg+0x723/0xbe0 [ 3286.854818][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3286.854818][ T253] ___sys_sendmsg+0xee/0x170 [ 3286.854818][ T253] __sys_sendmsg+0xcd/0x170 [ 3286.854818][ T253] do_syscall_64+0xc6/0x1e0 [ 3286.854818][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3286.854818][ T253] [ 3286.856636][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3286.856636][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3286.856636][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3286.856636][ T253] ipv6_find_idev+0x102/0x170 [ 3286.856636][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3286.856636][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3286.856636][ T253] netlink_rcv_skb+0x130/0x360 [ 3286.856636][ T253] netlink_unicast+0x449/0x710 [ 3286.856636][ T253] netlink_sendmsg+0x723/0xbe0 [ 3286.856636][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3286.856636][ T253] ___sys_sendmsg+0xee/0x170 [ 3286.856636][ T253] __sys_sendmsg+0xcd/0x170 [ 3286.856636][ T253] do_syscall_64+0xc6/0x1e0 [ 3286.856636][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3286.856636][ T253] [ 3296.930318][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3296.930763][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3296.930763][ T253] dst_init+0x84/0x4a0 [ 3296.930763][ T253] dst_alloc+0x97/0x150 [ 3296.930763][ T253] ip6_dst_alloc+0x23/0x90 [ 3296.930763][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3296.930763][ T253] ip6_pol_route+0x56f/0x840 [ 3296.930763][ T253] fib6_rule_lookup+0x334/0x630 [ 3296.930763][ T253] ip6_route_output_flags+0x259/0x480 [ 3296.930763][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3296.930763][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3296.930763][ T253] netlink_rcv_skb+0x130/0x360 [ 3296.930763][ T253] netlink_unicast+0x449/0x710 [ 3296.930763][ T253] netlink_sendmsg+0x723/0xbe0 [ 3296.930763][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3296.930763][ T253] ___sys_sendmsg+0xee/0x170 [ 3296.930763][ T253] __sys_sendmsg+0xcd/0x170 [ 3296.930763][ T253] do_syscall_64+0xc6/0x1e0 [ 3296.930763][ T253] [ 3296.933080][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3296.933080][ T253] netdev_get_by_index+0x5e/0x80 [ 3296.933080][ T253] fib6_nh_init+0x3d8/0x1580 [ 3296.933080][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3296.933080][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3296.933080][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3296.933080][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3296.933080][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3296.933080][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3296.933080][ T253] addrconf_dad_begin+0x310/0x670 [ 3296.933080][ T253] addrconf_dad_work+0x10b/0xab0 [ 3296.933080][ T253] process_one_work+0x84d/0x18a0 [ 3296.933080][ T253] worker_thread+0x587/0xd30 [ 3296.933080][ T253] kthread+0x28a/0x350 [ 3296.933080][ T253] ret_from_fork+0x31/0x70 [ 3296.933080][ T253] ret_from_fork_asm+0x1a/0x30 [ 3296.933080][ T253] [ 3296.935351][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3296.935351][ T253] netdev_get_by_index+0x5e/0x80 [ 3296.935351][ T253] fib6_nh_init+0x3d8/0x1580 [ 3296.935351][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3296.935351][ T253] ip6_route_add+0x1c/0x140 [ 3296.935351][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3296.935351][ T253] inet6_addr_add+0x4f8/0xa40 [ 3296.935351][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3296.935351][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3296.935351][ T253] netlink_rcv_skb+0x130/0x360 [ 3296.935351][ T253] netlink_unicast+0x449/0x710 [ 3296.935351][ T253] netlink_sendmsg+0x723/0xbe0 [ 3296.935351][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3296.935351][ T253] ___sys_sendmsg+0xee/0x170 [ 3296.935351][ T253] __sys_sendmsg+0xcd/0x170 [ 3296.935351][ T253] do_syscall_64+0xc6/0x1e0 [ 3296.935351][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3296.935351][ T253] [ 3296.937718][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3296.937718][ T253] netdev_get_by_index+0x5e/0x80 [ 3296.937718][ T253] fib6_nh_init+0x3d8/0x1580 [ 3296.937718][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3296.937718][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3296.937718][ T253] ipv6_add_addr+0x411/0x2000 [ 3296.937718][ T253] inet6_addr_add+0x30e/0xa40 [ 3296.937718][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3296.937718][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3296.937718][ T253] netlink_rcv_skb+0x130/0x360 [ 3296.937718][ T253] netlink_unicast+0x449/0x710 [ 3296.937718][ T253] netlink_sendmsg+0x723/0xbe0 [ 3296.937718][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3296.937718][ T253] ___sys_sendmsg+0xee/0x170 [ 3296.937718][ T253] __sys_sendmsg+0xcd/0x170 [ 3296.937718][ T253] do_syscall_64+0xc6/0x1e0 [ 3296.937718][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3296.937718][ T253] [ 3296.940079][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3296.940079][ T253] netdev_get_by_index+0x5e/0x80 [ 3296.940079][ T253] fib6_nh_init+0x3d8/0x1580 [ 3296.940079][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3296.940079][ T253] ip6_route_add+0x1c/0x140 [ 3296.940079][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3296.940079][ T253] addrconf_add_dev+0xe2/0x170 [ 3296.940079][ T253] inet6_addr_add+0x12f/0xa40 [ 3296.940079][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3296.940079][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3296.940079][ T253] netlink_rcv_skb+0x130/0x360 [ 3296.940079][ T253] netlink_unicast+0x449/0x710 [ 3296.940079][ T253] netlink_sendmsg+0x723/0xbe0 [ 3296.940079][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3296.940079][ T253] ___sys_sendmsg+0xee/0x170 [ 3296.940079][ T253] __sys_sendmsg+0xcd/0x170 [ 3296.940079][ T253] do_syscall_64+0xc6/0x1e0 [ 3296.940079][ T253] [ 3296.942415][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3296.942415][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3296.942415][ T253] ipv6_find_idev+0x102/0x170 [ 3296.942415][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3296.942415][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3296.942415][ T253] netlink_rcv_skb+0x130/0x360 [ 3296.942415][ T253] netlink_unicast+0x449/0x710 [ 3296.942415][ T253] netlink_sendmsg+0x723/0xbe0 [ 3296.942415][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3296.942415][ T253] ___sys_sendmsg+0xee/0x170 [ 3296.942415][ T253] __sys_sendmsg+0xcd/0x170 [ 3296.942415][ T253] do_syscall_64+0xc6/0x1e0 [ 3296.942415][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3296.942415][ T253] [ 3296.944241][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3296.944241][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3296.944241][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3296.944241][ T253] ipv6_find_idev+0x102/0x170 [ 3296.944241][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3296.944241][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3296.944241][ T253] netlink_rcv_skb+0x130/0x360 [ 3296.944241][ T253] netlink_unicast+0x449/0x710 [ 3296.944241][ T253] netlink_sendmsg+0x723/0xbe0 [ 3296.944241][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3296.944241][ T253] ___sys_sendmsg+0xee/0x170 [ 3296.944241][ T253] __sys_sendmsg+0xcd/0x170 [ 3296.944241][ T253] do_syscall_64+0xc6/0x1e0 [ 3296.944241][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3296.944241][ T253] [ 3307.034248][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3307.034699][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3307.034699][ T253] dst_init+0x84/0x4a0 [ 3307.034699][ T253] dst_alloc+0x97/0x150 [ 3307.034699][ T253] ip6_dst_alloc+0x23/0x90 [ 3307.034699][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3307.034699][ T253] ip6_pol_route+0x56f/0x840 [ 3307.034699][ T253] fib6_rule_lookup+0x334/0x630 [ 3307.034699][ T253] ip6_route_output_flags+0x259/0x480 [ 3307.034699][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3307.034699][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3307.034699][ T253] netlink_rcv_skb+0x130/0x360 [ 3307.034699][ T253] netlink_unicast+0x449/0x710 [ 3307.034699][ T253] netlink_sendmsg+0x723/0xbe0 [ 3307.034699][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3307.034699][ T253] ___sys_sendmsg+0xee/0x170 [ 3307.034699][ T253] __sys_sendmsg+0xcd/0x170 [ 3307.034699][ T253] do_syscall_64+0xc6/0x1e0 [ 3307.034699][ T253] [ 3307.037068][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3307.037068][ T253] netdev_get_by_index+0x5e/0x80 [ 3307.037068][ T253] fib6_nh_init+0x3d8/0x1580 [ 3307.037068][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3307.037068][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3307.037068][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3307.037068][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3307.037068][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3307.037068][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3307.037068][ T253] addrconf_dad_begin+0x310/0x670 [ 3307.037068][ T253] addrconf_dad_work+0x10b/0xab0 [ 3307.037068][ T253] process_one_work+0x84d/0x18a0 [ 3307.037068][ T253] worker_thread+0x587/0xd30 [ 3307.037068][ T253] kthread+0x28a/0x350 [ 3307.037068][ T253] ret_from_fork+0x31/0x70 [ 3307.037068][ T253] ret_from_fork_asm+0x1a/0x30 [ 3307.037068][ T253] [ 3307.039232][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3307.039232][ T253] netdev_get_by_index+0x5e/0x80 [ 3307.039232][ T253] fib6_nh_init+0x3d8/0x1580 [ 3307.039232][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3307.039232][ T253] ip6_route_add+0x1c/0x140 [ 3307.039232][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3307.039232][ T253] inet6_addr_add+0x4f8/0xa40 [ 3307.039232][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3307.039232][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3307.039232][ T253] netlink_rcv_skb+0x130/0x360 [ 3307.039232][ T253] netlink_unicast+0x449/0x710 [ 3307.039232][ T253] netlink_sendmsg+0x723/0xbe0 [ 3307.039232][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3307.039232][ T253] ___sys_sendmsg+0xee/0x170 [ 3307.039232][ T253] __sys_sendmsg+0xcd/0x170 [ 3307.039232][ T253] do_syscall_64+0xc6/0x1e0 [ 3307.039232][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3307.039232][ T253] [ 3307.041512][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3307.041512][ T253] netdev_get_by_index+0x5e/0x80 [ 3307.041512][ T253] fib6_nh_init+0x3d8/0x1580 [ 3307.041512][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3307.041512][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3307.041512][ T253] ipv6_add_addr+0x411/0x2000 [ 3307.041512][ T253] inet6_addr_add+0x30e/0xa40 [ 3307.041512][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3307.041512][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3307.041512][ T253] netlink_rcv_skb+0x130/0x360 [ 3307.041512][ T253] netlink_unicast+0x449/0x710 [ 3307.041512][ T253] netlink_sendmsg+0x723/0xbe0 [ 3307.041512][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3307.041512][ T253] ___sys_sendmsg+0xee/0x170 [ 3307.041512][ T253] __sys_sendmsg+0xcd/0x170 [ 3307.041512][ T253] do_syscall_64+0xc6/0x1e0 [ 3307.041512][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3307.041512][ T253] [ 3307.043777][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3307.043777][ T253] netdev_get_by_index+0x5e/0x80 [ 3307.043777][ T253] fib6_nh_init+0x3d8/0x1580 [ 3307.043777][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3307.043777][ T253] ip6_route_add+0x1c/0x140 [ 3307.043777][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3307.043777][ T253] addrconf_add_dev+0xe2/0x170 [ 3307.043777][ T253] inet6_addr_add+0x12f/0xa40 [ 3307.043777][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3307.043777][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3307.043777][ T253] netlink_rcv_skb+0x130/0x360 [ 3307.043777][ T253] netlink_unicast+0x449/0x710 [ 3307.043777][ T253] netlink_sendmsg+0x723/0xbe0 [ 3307.043777][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3307.043777][ T253] ___sys_sendmsg+0xee/0x170 [ 3307.043777][ T253] __sys_sendmsg+0xcd/0x170 [ 3307.043777][ T253] do_syscall_64+0xc6/0x1e0 [ 3307.043777][ T253] [ 3307.046018][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3307.046018][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3307.046018][ T253] ipv6_find_idev+0x102/0x170 [ 3307.046018][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3307.046018][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3307.046018][ T253] netlink_rcv_skb+0x130/0x360 [ 3307.046018][ T253] netlink_unicast+0x449/0x710 [ 3307.046018][ T253] netlink_sendmsg+0x723/0xbe0 [ 3307.046018][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3307.046018][ T253] ___sys_sendmsg+0xee/0x170 [ 3307.046018][ T253] __sys_sendmsg+0xcd/0x170 [ 3307.046018][ T253] do_syscall_64+0xc6/0x1e0 [ 3307.046018][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3307.046018][ T253] [ 3307.047764][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3307.047764][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3307.047764][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3307.047764][ T253] ipv6_find_idev+0x102/0x170 [ 3307.047764][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3307.047764][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3307.047764][ T253] netlink_rcv_skb+0x130/0x360 [ 3307.047764][ T253] netlink_unicast+0x449/0x710 [ 3307.047764][ T253] netlink_sendmsg+0x723/0xbe0 [ 3307.047764][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3307.047764][ T253] ___sys_sendmsg+0xee/0x170 [ 3307.047764][ T253] __sys_sendmsg+0xcd/0x170 [ 3307.047764][ T253] do_syscall_64+0xc6/0x1e0 [ 3307.047764][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3307.047764][ T253] [ 3317.298312][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3317.298739][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3317.298739][ T253] dst_init+0x84/0x4a0 [ 3317.298739][ T253] dst_alloc+0x97/0x150 [ 3317.298739][ T253] ip6_dst_alloc+0x23/0x90 [ 3317.298739][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3317.298739][ T253] ip6_pol_route+0x56f/0x840 [ 3317.298739][ T253] fib6_rule_lookup+0x334/0x630 [ 3317.298739][ T253] ip6_route_output_flags+0x259/0x480 [ 3317.298739][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3317.298739][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3317.298739][ T253] netlink_rcv_skb+0x130/0x360 [ 3317.298739][ T253] netlink_unicast+0x449/0x710 [ 3317.298739][ T253] netlink_sendmsg+0x723/0xbe0 [ 3317.298739][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3317.298739][ T253] ___sys_sendmsg+0xee/0x170 [ 3317.298739][ T253] __sys_sendmsg+0xcd/0x170 [ 3317.298739][ T253] do_syscall_64+0xc6/0x1e0 [ 3317.298739][ T253] [ 3317.300965][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3317.300965][ T253] netdev_get_by_index+0x5e/0x80 [ 3317.300965][ T253] fib6_nh_init+0x3d8/0x1580 [ 3317.300965][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3317.300965][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3317.300965][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3317.300965][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3317.300965][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3317.300965][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3317.300965][ T253] addrconf_dad_begin+0x310/0x670 [ 3317.300965][ T253] addrconf_dad_work+0x10b/0xab0 [ 3317.300965][ T253] process_one_work+0x84d/0x18a0 [ 3317.300965][ T253] worker_thread+0x587/0xd30 [ 3317.300965][ T253] kthread+0x28a/0x350 [ 3317.300965][ T253] ret_from_fork+0x31/0x70 [ 3317.300965][ T253] ret_from_fork_asm+0x1a/0x30 [ 3317.300965][ T253] [ 3317.303143][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3317.303143][ T253] netdev_get_by_index+0x5e/0x80 [ 3317.303143][ T253] fib6_nh_init+0x3d8/0x1580 [ 3317.303143][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3317.303143][ T253] ip6_route_add+0x1c/0x140 [ 3317.303143][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3317.303143][ T253] inet6_addr_add+0x4f8/0xa40 [ 3317.303143][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3317.303143][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3317.303143][ T253] netlink_rcv_skb+0x130/0x360 [ 3317.303143][ T253] netlink_unicast+0x449/0x710 [ 3317.303143][ T253] netlink_sendmsg+0x723/0xbe0 [ 3317.303143][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3317.303143][ T253] ___sys_sendmsg+0xee/0x170 [ 3317.303143][ T253] __sys_sendmsg+0xcd/0x170 [ 3317.303143][ T253] do_syscall_64+0xc6/0x1e0 [ 3317.303143][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3317.303143][ T253] [ 3317.305419][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3317.305419][ T253] netdev_get_by_index+0x5e/0x80 [ 3317.305419][ T253] fib6_nh_init+0x3d8/0x1580 [ 3317.305419][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3317.305419][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3317.305419][ T253] ipv6_add_addr+0x411/0x2000 [ 3317.305419][ T253] inet6_addr_add+0x30e/0xa40 [ 3317.305419][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3317.305419][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3317.305419][ T253] netlink_rcv_skb+0x130/0x360 [ 3317.305419][ T253] netlink_unicast+0x449/0x710 [ 3317.305419][ T253] netlink_sendmsg+0x723/0xbe0 [ 3317.305419][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3317.305419][ T253] ___sys_sendmsg+0xee/0x170 [ 3317.305419][ T253] __sys_sendmsg+0xcd/0x170 [ 3317.305419][ T253] do_syscall_64+0xc6/0x1e0 [ 3317.305419][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3317.305419][ T253] [ 3317.307693][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3317.307693][ T253] netdev_get_by_index+0x5e/0x80 [ 3317.307693][ T253] fib6_nh_init+0x3d8/0x1580 [ 3317.307693][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3317.307693][ T253] ip6_route_add+0x1c/0x140 [ 3317.307693][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3317.307693][ T253] addrconf_add_dev+0xe2/0x170 [ 3317.307693][ T253] inet6_addr_add+0x12f/0xa40 [ 3317.307693][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3317.307693][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3317.307693][ T253] netlink_rcv_skb+0x130/0x360 [ 3317.307693][ T253] netlink_unicast+0x449/0x710 [ 3317.307693][ T253] netlink_sendmsg+0x723/0xbe0 [ 3317.307693][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3317.307693][ T253] ___sys_sendmsg+0xee/0x170 [ 3317.307693][ T253] __sys_sendmsg+0xcd/0x170 [ 3317.307693][ T253] do_syscall_64+0xc6/0x1e0 [ 3317.307693][ T253] [ 3317.309919][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3317.309919][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3317.309919][ T253] ipv6_find_idev+0x102/0x170 [ 3317.309919][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3317.309919][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3317.309919][ T253] netlink_rcv_skb+0x130/0x360 [ 3317.309919][ T253] netlink_unicast+0x449/0x710 [ 3317.309919][ T253] netlink_sendmsg+0x723/0xbe0 [ 3317.309919][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3317.309919][ T253] ___sys_sendmsg+0xee/0x170 [ 3317.309919][ T253] __sys_sendmsg+0xcd/0x170 [ 3317.309919][ T253] do_syscall_64+0xc6/0x1e0 [ 3317.309919][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3317.309919][ T253] [ 3317.311659][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3317.311659][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3317.311659][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3317.311659][ T253] ipv6_find_idev+0x102/0x170 [ 3317.311659][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3317.311659][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3317.311659][ T253] netlink_rcv_skb+0x130/0x360 [ 3317.311659][ T253] netlink_unicast+0x449/0x710 [ 3317.311659][ T253] netlink_sendmsg+0x723/0xbe0 [ 3317.311659][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3317.311659][ T253] ___sys_sendmsg+0xee/0x170 [ 3317.311659][ T253] __sys_sendmsg+0xcd/0x170 [ 3317.311659][ T253] do_syscall_64+0xc6/0x1e0 [ 3317.311659][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3317.311659][ T253] [ 3327.562312][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3327.562796][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3327.562796][ T253] dst_init+0x84/0x4a0 [ 3327.562796][ T253] dst_alloc+0x97/0x150 [ 3327.562796][ T253] ip6_dst_alloc+0x23/0x90 [ 3327.562796][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3327.562796][ T253] ip6_pol_route+0x56f/0x840 [ 3327.562796][ T253] fib6_rule_lookup+0x334/0x630 [ 3327.562796][ T253] ip6_route_output_flags+0x259/0x480 [ 3327.562796][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3327.562796][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3327.562796][ T253] netlink_rcv_skb+0x130/0x360 [ 3327.562796][ T253] netlink_unicast+0x449/0x710 [ 3327.562796][ T253] netlink_sendmsg+0x723/0xbe0 [ 3327.562796][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3327.562796][ T253] ___sys_sendmsg+0xee/0x170 [ 3327.562796][ T253] __sys_sendmsg+0xcd/0x170 [ 3327.562796][ T253] do_syscall_64+0xc6/0x1e0 [ 3327.562796][ T253] [ 3327.565033][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3327.565033][ T253] netdev_get_by_index+0x5e/0x80 [ 3327.565033][ T253] fib6_nh_init+0x3d8/0x1580 [ 3327.565033][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3327.565033][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3327.565033][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3327.565033][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3327.565033][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3327.565033][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3327.565033][ T253] addrconf_dad_begin+0x310/0x670 [ 3327.565033][ T253] addrconf_dad_work+0x10b/0xab0 [ 3327.565033][ T253] process_one_work+0x84d/0x18a0 [ 3327.565033][ T253] worker_thread+0x587/0xd30 [ 3327.565033][ T253] kthread+0x28a/0x350 [ 3327.565033][ T253] ret_from_fork+0x31/0x70 [ 3327.565033][ T253] ret_from_fork_asm+0x1a/0x30 [ 3327.565033][ T253] [ 3327.567199][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3327.567199][ T253] netdev_get_by_index+0x5e/0x80 [ 3327.567199][ T253] fib6_nh_init+0x3d8/0x1580 [ 3327.567199][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3327.567199][ T253] ip6_route_add+0x1c/0x140 [ 3327.567199][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3327.567199][ T253] inet6_addr_add+0x4f8/0xa40 [ 3327.567199][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3327.567199][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3327.567199][ T253] netlink_rcv_skb+0x130/0x360 [ 3327.567199][ T253] netlink_unicast+0x449/0x710 [ 3327.567199][ T253] netlink_sendmsg+0x723/0xbe0 [ 3327.567199][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3327.567199][ T253] ___sys_sendmsg+0xee/0x170 [ 3327.567199][ T253] __sys_sendmsg+0xcd/0x170 [ 3327.567199][ T253] do_syscall_64+0xc6/0x1e0 [ 3327.567199][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3327.567199][ T253] [ 3327.569460][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3327.569460][ T253] netdev_get_by_index+0x5e/0x80 [ 3327.569460][ T253] fib6_nh_init+0x3d8/0x1580 [ 3327.569460][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3327.569460][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3327.569460][ T253] ipv6_add_addr+0x411/0x2000 [ 3327.569460][ T253] inet6_addr_add+0x30e/0xa40 [ 3327.569460][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3327.569460][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3327.569460][ T253] netlink_rcv_skb+0x130/0x360 [ 3327.569460][ T253] netlink_unicast+0x449/0x710 [ 3327.569460][ T253] netlink_sendmsg+0x723/0xbe0 [ 3327.569460][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3327.569460][ T253] ___sys_sendmsg+0xee/0x170 [ 3327.569460][ T253] __sys_sendmsg+0xcd/0x170 [ 3327.569460][ T253] do_syscall_64+0xc6/0x1e0 [ 3327.569460][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3327.569460][ T253] [ 3327.571731][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3327.571731][ T253] netdev_get_by_index+0x5e/0x80 [ 3327.571731][ T253] fib6_nh_init+0x3d8/0x1580 [ 3327.571731][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3327.571731][ T253] ip6_route_add+0x1c/0x140 [ 3327.571731][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3327.571731][ T253] addrconf_add_dev+0xe2/0x170 [ 3327.571731][ T253] inet6_addr_add+0x12f/0xa40 [ 3327.571731][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3327.571731][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3327.571731][ T253] netlink_rcv_skb+0x130/0x360 [ 3327.571731][ T253] netlink_unicast+0x449/0x710 [ 3327.571731][ T253] netlink_sendmsg+0x723/0xbe0 [ 3327.571731][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3327.571731][ T253] ___sys_sendmsg+0xee/0x170 [ 3327.571731][ T253] __sys_sendmsg+0xcd/0x170 [ 3327.571731][ T253] do_syscall_64+0xc6/0x1e0 [ 3327.571731][ T253] [ 3327.573959][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3327.573959][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3327.573959][ T253] ipv6_find_idev+0x102/0x170 [ 3327.573959][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3327.573959][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3327.573959][ T253] netlink_rcv_skb+0x130/0x360 [ 3327.573959][ T253] netlink_unicast+0x449/0x710 [ 3327.573959][ T253] netlink_sendmsg+0x723/0xbe0 [ 3327.573959][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3327.573959][ T253] ___sys_sendmsg+0xee/0x170 [ 3327.573959][ T253] __sys_sendmsg+0xcd/0x170 [ 3327.573959][ T253] do_syscall_64+0xc6/0x1e0 [ 3327.573959][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3327.573959][ T253] [ 3327.575704][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3327.575704][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3327.575704][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3327.575704][ T253] ipv6_find_idev+0x102/0x170 [ 3327.575704][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3327.575704][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3327.575704][ T253] netlink_rcv_skb+0x130/0x360 [ 3327.575704][ T253] netlink_unicast+0x449/0x710 [ 3327.575704][ T253] netlink_sendmsg+0x723/0xbe0 [ 3327.575704][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3327.575704][ T253] ___sys_sendmsg+0xee/0x170 [ 3327.575704][ T253] __sys_sendmsg+0xcd/0x170 [ 3327.575704][ T253] do_syscall_64+0xc6/0x1e0 [ 3327.575704][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3327.575704][ T253] [ 3337.754265][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3337.754694][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3337.754694][ T253] dst_init+0x84/0x4a0 [ 3337.754694][ T253] dst_alloc+0x97/0x150 [ 3337.754694][ T253] ip6_dst_alloc+0x23/0x90 [ 3337.754694][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3337.754694][ T253] ip6_pol_route+0x56f/0x840 [ 3337.754694][ T253] fib6_rule_lookup+0x334/0x630 [ 3337.754694][ T253] ip6_route_output_flags+0x259/0x480 [ 3337.754694][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3337.754694][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3337.754694][ T253] netlink_rcv_skb+0x130/0x360 [ 3337.754694][ T253] netlink_unicast+0x449/0x710 [ 3337.754694][ T253] netlink_sendmsg+0x723/0xbe0 [ 3337.754694][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3337.754694][ T253] ___sys_sendmsg+0xee/0x170 [ 3337.754694][ T253] __sys_sendmsg+0xcd/0x170 [ 3337.754694][ T253] do_syscall_64+0xc6/0x1e0 [ 3337.754694][ T253] [ 3337.757076][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3337.757076][ T253] netdev_get_by_index+0x5e/0x80 [ 3337.757076][ T253] fib6_nh_init+0x3d8/0x1580 [ 3337.757076][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3337.757076][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3337.757076][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3337.757076][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3337.757076][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3337.757076][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3337.757076][ T253] addrconf_dad_begin+0x310/0x670 [ 3337.757076][ T253] addrconf_dad_work+0x10b/0xab0 [ 3337.757076][ T253] process_one_work+0x84d/0x18a0 [ 3337.757076][ T253] worker_thread+0x587/0xd30 [ 3337.757076][ T253] kthread+0x28a/0x350 [ 3337.757076][ T253] ret_from_fork+0x31/0x70 [ 3337.757076][ T253] ret_from_fork_asm+0x1a/0x30 [ 3337.757076][ T253] [ 3337.759330][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3337.759330][ T253] netdev_get_by_index+0x5e/0x80 [ 3337.759330][ T253] fib6_nh_init+0x3d8/0x1580 [ 3337.759330][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3337.759330][ T253] ip6_route_add+0x1c/0x140 [ 3337.759330][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3337.759330][ T253] inet6_addr_add+0x4f8/0xa40 [ 3337.759330][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3337.759330][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3337.759330][ T253] netlink_rcv_skb+0x130/0x360 [ 3337.759330][ T253] netlink_unicast+0x449/0x710 [ 3337.759330][ T253] netlink_sendmsg+0x723/0xbe0 [ 3337.759330][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3337.759330][ T253] ___sys_sendmsg+0xee/0x170 [ 3337.759330][ T253] __sys_sendmsg+0xcd/0x170 [ 3337.759330][ T253] do_syscall_64+0xc6/0x1e0 [ 3337.759330][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3337.759330][ T253] [ 3337.761700][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3337.761700][ T253] netdev_get_by_index+0x5e/0x80 [ 3337.761700][ T253] fib6_nh_init+0x3d8/0x1580 [ 3337.761700][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3337.761700][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3337.761700][ T253] ipv6_add_addr+0x411/0x2000 [ 3337.761700][ T253] inet6_addr_add+0x30e/0xa40 [ 3337.761700][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3337.761700][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3337.761700][ T253] netlink_rcv_skb+0x130/0x360 [ 3337.761700][ T253] netlink_unicast+0x449/0x710 [ 3337.761700][ T253] netlink_sendmsg+0x723/0xbe0 [ 3337.761700][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3337.761700][ T253] ___sys_sendmsg+0xee/0x170 [ 3337.761700][ T253] __sys_sendmsg+0xcd/0x170 [ 3337.761700][ T253] do_syscall_64+0xc6/0x1e0 [ 3337.761700][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3337.761700][ T253] [ 3337.764093][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3337.764093][ T253] netdev_get_by_index+0x5e/0x80 [ 3337.764093][ T253] fib6_nh_init+0x3d8/0x1580 [ 3337.764093][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3337.764093][ T253] ip6_route_add+0x1c/0x140 [ 3337.764093][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3337.764093][ T253] addrconf_add_dev+0xe2/0x170 [ 3337.764093][ T253] inet6_addr_add+0x12f/0xa40 [ 3337.764093][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3337.764093][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3337.764093][ T253] netlink_rcv_skb+0x130/0x360 [ 3337.764093][ T253] netlink_unicast+0x449/0x710 [ 3337.764093][ T253] netlink_sendmsg+0x723/0xbe0 [ 3337.764093][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3337.764093][ T253] ___sys_sendmsg+0xee/0x170 [ 3337.764093][ T253] __sys_sendmsg+0xcd/0x170 [ 3337.764093][ T253] do_syscall_64+0xc6/0x1e0 [ 3337.764093][ T253] [ 3337.766401][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3337.766401][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3337.766401][ T253] ipv6_find_idev+0x102/0x170 [ 3337.766401][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3337.766401][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3337.766401][ T253] netlink_rcv_skb+0x130/0x360 [ 3337.766401][ T253] netlink_unicast+0x449/0x710 [ 3337.766401][ T253] netlink_sendmsg+0x723/0xbe0 [ 3337.766401][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3337.766401][ T253] ___sys_sendmsg+0xee/0x170 [ 3337.766401][ T253] __sys_sendmsg+0xcd/0x170 [ 3337.766401][ T253] do_syscall_64+0xc6/0x1e0 [ 3337.766401][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3337.766401][ T253] [ 3337.768213][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3337.768213][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3337.768213][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3337.768213][ T253] ipv6_find_idev+0x102/0x170 [ 3337.768213][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3337.768213][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3337.768213][ T253] netlink_rcv_skb+0x130/0x360 [ 3337.768213][ T253] netlink_unicast+0x449/0x710 [ 3337.768213][ T253] netlink_sendmsg+0x723/0xbe0 [ 3337.768213][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3337.768213][ T253] ___sys_sendmsg+0xee/0x170 [ 3337.768213][ T253] __sys_sendmsg+0xcd/0x170 [ 3337.768213][ T253] do_syscall_64+0xc6/0x1e0 [ 3337.768213][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3337.768213][ T253] [ 3348.010325][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3348.010825][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3348.010825][ T253] dst_init+0x84/0x4a0 [ 3348.010825][ T253] dst_alloc+0x97/0x150 [ 3348.010825][ T253] ip6_dst_alloc+0x23/0x90 [ 3348.010825][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3348.010825][ T253] ip6_pol_route+0x56f/0x840 [ 3348.010825][ T253] fib6_rule_lookup+0x334/0x630 [ 3348.010825][ T253] ip6_route_output_flags+0x259/0x480 [ 3348.010825][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3348.010825][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3348.010825][ T253] netlink_rcv_skb+0x130/0x360 [ 3348.010825][ T253] netlink_unicast+0x449/0x710 [ 3348.010825][ T253] netlink_sendmsg+0x723/0xbe0 [ 3348.010825][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3348.010825][ T253] ___sys_sendmsg+0xee/0x170 [ 3348.010825][ T253] __sys_sendmsg+0xcd/0x170 [ 3348.010825][ T253] do_syscall_64+0xc6/0x1e0 [ 3348.010825][ T253] [ 3348.013111][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3348.013111][ T253] netdev_get_by_index+0x5e/0x80 [ 3348.013111][ T253] fib6_nh_init+0x3d8/0x1580 [ 3348.013111][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3348.013111][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3348.013111][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3348.013111][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3348.013111][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3348.013111][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3348.013111][ T253] addrconf_dad_begin+0x310/0x670 [ 3348.013111][ T253] addrconf_dad_work+0x10b/0xab0 [ 3348.013111][ T253] process_one_work+0x84d/0x18a0 [ 3348.013111][ T253] worker_thread+0x587/0xd30 [ 3348.013111][ T253] kthread+0x28a/0x350 [ 3348.013111][ T253] ret_from_fork+0x31/0x70 [ 3348.013111][ T253] ret_from_fork_asm+0x1a/0x30 [ 3348.013111][ T253] [ 3348.015357][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3348.015357][ T253] netdev_get_by_index+0x5e/0x80 [ 3348.015357][ T253] fib6_nh_init+0x3d8/0x1580 [ 3348.015357][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3348.015357][ T253] ip6_route_add+0x1c/0x140 [ 3348.015357][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3348.015357][ T253] inet6_addr_add+0x4f8/0xa40 [ 3348.015357][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3348.015357][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3348.015357][ T253] netlink_rcv_skb+0x130/0x360 [ 3348.015357][ T253] netlink_unicast+0x449/0x710 [ 3348.015357][ T253] netlink_sendmsg+0x723/0xbe0 [ 3348.015357][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3348.015357][ T253] ___sys_sendmsg+0xee/0x170 [ 3348.015357][ T253] __sys_sendmsg+0xcd/0x170 [ 3348.015357][ T253] do_syscall_64+0xc6/0x1e0 [ 3348.015357][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3348.015357][ T253] [ 3348.017695][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3348.017695][ T253] netdev_get_by_index+0x5e/0x80 [ 3348.017695][ T253] fib6_nh_init+0x3d8/0x1580 [ 3348.017695][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3348.017695][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3348.017695][ T253] ipv6_add_addr+0x411/0x2000 [ 3348.017695][ T253] inet6_addr_add+0x30e/0xa40 [ 3348.017695][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3348.017695][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3348.017695][ T253] netlink_rcv_skb+0x130/0x360 [ 3348.017695][ T253] netlink_unicast+0x449/0x710 [ 3348.017695][ T253] netlink_sendmsg+0x723/0xbe0 [ 3348.017695][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3348.017695][ T253] ___sys_sendmsg+0xee/0x170 [ 3348.017695][ T253] __sys_sendmsg+0xcd/0x170 [ 3348.017695][ T253] do_syscall_64+0xc6/0x1e0 [ 3348.017695][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3348.017695][ T253] [ 3348.020050][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3348.020050][ T253] netdev_get_by_index+0x5e/0x80 [ 3348.020050][ T253] fib6_nh_init+0x3d8/0x1580 [ 3348.020050][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3348.020050][ T253] ip6_route_add+0x1c/0x140 [ 3348.020050][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3348.020050][ T253] addrconf_add_dev+0xe2/0x170 [ 3348.020050][ T253] inet6_addr_add+0x12f/0xa40 [ 3348.020050][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3348.020050][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3348.020050][ T253] netlink_rcv_skb+0x130/0x360 [ 3348.020050][ T253] netlink_unicast+0x449/0x710 [ 3348.020050][ T253] netlink_sendmsg+0x723/0xbe0 [ 3348.020050][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3348.020050][ T253] ___sys_sendmsg+0xee/0x170 [ 3348.020050][ T253] __sys_sendmsg+0xcd/0x170 [ 3348.020050][ T253] do_syscall_64+0xc6/0x1e0 [ 3348.020050][ T253] [ 3348.022343][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3348.022343][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3348.022343][ T253] ipv6_find_idev+0x102/0x170 [ 3348.022343][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3348.022343][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3348.022343][ T253] netlink_rcv_skb+0x130/0x360 [ 3348.022343][ T253] netlink_unicast+0x449/0x710 [ 3348.022343][ T253] netlink_sendmsg+0x723/0xbe0 [ 3348.022343][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3348.022343][ T253] ___sys_sendmsg+0xee/0x170 [ 3348.022343][ T253] __sys_sendmsg+0xcd/0x170 [ 3348.022343][ T253] do_syscall_64+0xc6/0x1e0 [ 3348.022343][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3348.022343][ T253] [ 3348.024149][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3348.024149][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3348.024149][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3348.024149][ T253] ipv6_find_idev+0x102/0x170 [ 3348.024149][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3348.024149][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3348.024149][ T253] netlink_rcv_skb+0x130/0x360 [ 3348.024149][ T253] netlink_unicast+0x449/0x710 [ 3348.024149][ T253] netlink_sendmsg+0x723/0xbe0 [ 3348.024149][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3348.024149][ T253] ___sys_sendmsg+0xee/0x170 [ 3348.024149][ T253] __sys_sendmsg+0xcd/0x170 [ 3348.024149][ T253] do_syscall_64+0xc6/0x1e0 [ 3348.024149][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3348.024149][ T253] [ 3358.266330][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3358.266759][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3358.266759][ T253] dst_init+0x84/0x4a0 [ 3358.266759][ T253] dst_alloc+0x97/0x150 [ 3358.266759][ T253] ip6_dst_alloc+0x23/0x90 [ 3358.266759][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3358.266759][ T253] ip6_pol_route+0x56f/0x840 [ 3358.266759][ T253] fib6_rule_lookup+0x334/0x630 [ 3358.266759][ T253] ip6_route_output_flags+0x259/0x480 [ 3358.266759][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3358.266759][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3358.266759][ T253] netlink_rcv_skb+0x130/0x360 [ 3358.266759][ T253] netlink_unicast+0x449/0x710 [ 3358.266759][ T253] netlink_sendmsg+0x723/0xbe0 [ 3358.266759][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3358.266759][ T253] ___sys_sendmsg+0xee/0x170 [ 3358.266759][ T253] __sys_sendmsg+0xcd/0x170 [ 3358.266759][ T253] do_syscall_64+0xc6/0x1e0 [ 3358.266759][ T253] [ 3358.269076][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3358.269076][ T253] netdev_get_by_index+0x5e/0x80 [ 3358.269076][ T253] fib6_nh_init+0x3d8/0x1580 [ 3358.269076][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3358.269076][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3358.269076][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3358.269076][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3358.269076][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3358.269076][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3358.269076][ T253] addrconf_dad_begin+0x310/0x670 [ 3358.269076][ T253] addrconf_dad_work+0x10b/0xab0 [ 3358.269076][ T253] process_one_work+0x84d/0x18a0 [ 3358.269076][ T253] worker_thread+0x587/0xd30 [ 3358.269076][ T253] kthread+0x28a/0x350 [ 3358.269076][ T253] ret_from_fork+0x31/0x70 [ 3358.269076][ T253] ret_from_fork_asm+0x1a/0x30 [ 3358.269076][ T253] [ 3358.271323][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3358.271323][ T253] netdev_get_by_index+0x5e/0x80 [ 3358.271323][ T253] fib6_nh_init+0x3d8/0x1580 [ 3358.271323][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3358.271323][ T253] ip6_route_add+0x1c/0x140 [ 3358.271323][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3358.271323][ T253] inet6_addr_add+0x4f8/0xa40 [ 3358.271323][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3358.271323][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3358.271323][ T253] netlink_rcv_skb+0x130/0x360 [ 3358.271323][ T253] netlink_unicast+0x449/0x710 [ 3358.271323][ T253] netlink_sendmsg+0x723/0xbe0 [ 3358.271323][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3358.271323][ T253] ___sys_sendmsg+0xee/0x170 [ 3358.271323][ T253] __sys_sendmsg+0xcd/0x170 [ 3358.271323][ T253] do_syscall_64+0xc6/0x1e0 [ 3358.271323][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3358.271323][ T253] [ 3358.273677][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3358.273677][ T253] netdev_get_by_index+0x5e/0x80 [ 3358.273677][ T253] fib6_nh_init+0x3d8/0x1580 [ 3358.273677][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3358.273677][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3358.273677][ T253] ipv6_add_addr+0x411/0x2000 [ 3358.273677][ T253] inet6_addr_add+0x30e/0xa40 [ 3358.273677][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3358.273677][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3358.273677][ T253] netlink_rcv_skb+0x130/0x360 [ 3358.273677][ T253] netlink_unicast+0x449/0x710 [ 3358.273677][ T253] netlink_sendmsg+0x723/0xbe0 [ 3358.273677][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3358.273677][ T253] ___sys_sendmsg+0xee/0x170 [ 3358.273677][ T253] __sys_sendmsg+0xcd/0x170 [ 3358.273677][ T253] do_syscall_64+0xc6/0x1e0 [ 3358.273677][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3358.273677][ T253] [ 3358.276023][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3358.276023][ T253] netdev_get_by_index+0x5e/0x80 [ 3358.276023][ T253] fib6_nh_init+0x3d8/0x1580 [ 3358.276023][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3358.276023][ T253] ip6_route_add+0x1c/0x140 [ 3358.276023][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3358.276023][ T253] addrconf_add_dev+0xe2/0x170 [ 3358.276023][ T253] inet6_addr_add+0x12f/0xa40 [ 3358.276023][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3358.276023][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3358.276023][ T253] netlink_rcv_skb+0x130/0x360 [ 3358.276023][ T253] netlink_unicast+0x449/0x710 [ 3358.276023][ T253] netlink_sendmsg+0x723/0xbe0 [ 3358.276023][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3358.276023][ T253] ___sys_sendmsg+0xee/0x170 [ 3358.276023][ T253] __sys_sendmsg+0xcd/0x170 [ 3358.276023][ T253] do_syscall_64+0xc6/0x1e0 [ 3358.276023][ T253] [ 3358.278321][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3358.278321][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3358.278321][ T253] ipv6_find_idev+0x102/0x170 [ 3358.278321][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3358.278321][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3358.278321][ T253] netlink_rcv_skb+0x130/0x360 [ 3358.278321][ T253] netlink_unicast+0x449/0x710 [ 3358.278321][ T253] netlink_sendmsg+0x723/0xbe0 [ 3358.278321][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3358.278321][ T253] ___sys_sendmsg+0xee/0x170 [ 3358.278321][ T253] __sys_sendmsg+0xcd/0x170 [ 3358.278321][ T253] do_syscall_64+0xc6/0x1e0 [ 3358.278321][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3358.278321][ T253] [ 3358.280123][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3358.280123][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3358.280123][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3358.280123][ T253] ipv6_find_idev+0x102/0x170 [ 3358.280123][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3358.280123][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3358.280123][ T253] netlink_rcv_skb+0x130/0x360 [ 3358.280123][ T253] netlink_unicast+0x449/0x710 [ 3358.280123][ T253] netlink_sendmsg+0x723/0xbe0 [ 3358.280123][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3358.280123][ T253] ___sys_sendmsg+0xee/0x170 [ 3358.280123][ T253] __sys_sendmsg+0xcd/0x170 [ 3358.280123][ T253] do_syscall_64+0xc6/0x1e0 [ 3358.280123][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3358.280123][ T253] [ 3368.530321][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3368.530809][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3368.530809][ T253] dst_init+0x84/0x4a0 [ 3368.530809][ T253] dst_alloc+0x97/0x150 [ 3368.530809][ T253] ip6_dst_alloc+0x23/0x90 [ 3368.530809][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3368.530809][ T253] ip6_pol_route+0x56f/0x840 [ 3368.530809][ T253] fib6_rule_lookup+0x334/0x630 [ 3368.530809][ T253] ip6_route_output_flags+0x259/0x480 [ 3368.530809][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3368.530809][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3368.530809][ T253] netlink_rcv_skb+0x130/0x360 [ 3368.530809][ T253] netlink_unicast+0x449/0x710 [ 3368.530809][ T253] netlink_sendmsg+0x723/0xbe0 [ 3368.530809][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3368.530809][ T253] ___sys_sendmsg+0xee/0x170 [ 3368.530809][ T253] __sys_sendmsg+0xcd/0x170 [ 3368.530809][ T253] do_syscall_64+0xc6/0x1e0 [ 3368.530809][ T253] [ 3368.533131][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3368.533131][ T253] netdev_get_by_index+0x5e/0x80 [ 3368.533131][ T253] fib6_nh_init+0x3d8/0x1580 [ 3368.533131][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3368.533131][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3368.533131][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3368.533131][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3368.533131][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3368.533131][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3368.533131][ T253] addrconf_dad_begin+0x310/0x670 [ 3368.533131][ T253] addrconf_dad_work+0x10b/0xab0 [ 3368.533131][ T253] process_one_work+0x84d/0x18a0 [ 3368.533131][ T253] worker_thread+0x587/0xd30 [ 3368.533131][ T253] kthread+0x28a/0x350 [ 3368.533131][ T253] ret_from_fork+0x31/0x70 [ 3368.533131][ T253] ret_from_fork_asm+0x1a/0x30 [ 3368.533131][ T253] [ 3368.535402][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3368.535402][ T253] netdev_get_by_index+0x5e/0x80 [ 3368.535402][ T253] fib6_nh_init+0x3d8/0x1580 [ 3368.535402][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3368.535402][ T253] ip6_route_add+0x1c/0x140 [ 3368.535402][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3368.535402][ T253] inet6_addr_add+0x4f8/0xa40 [ 3368.535402][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3368.535402][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3368.535402][ T253] netlink_rcv_skb+0x130/0x360 [ 3368.535402][ T253] netlink_unicast+0x449/0x710 [ 3368.535402][ T253] netlink_sendmsg+0x723/0xbe0 [ 3368.535402][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3368.535402][ T253] ___sys_sendmsg+0xee/0x170 [ 3368.535402][ T253] __sys_sendmsg+0xcd/0x170 [ 3368.535402][ T253] do_syscall_64+0xc6/0x1e0 [ 3368.535402][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3368.535402][ T253] [ 3368.537768][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3368.537768][ T253] netdev_get_by_index+0x5e/0x80 [ 3368.537768][ T253] fib6_nh_init+0x3d8/0x1580 [ 3368.537768][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3368.537768][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3368.537768][ T253] ipv6_add_addr+0x411/0x2000 [ 3368.537768][ T253] inet6_addr_add+0x30e/0xa40 [ 3368.537768][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3368.537768][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3368.537768][ T253] netlink_rcv_skb+0x130/0x360 [ 3368.537768][ T253] netlink_unicast+0x449/0x710 [ 3368.537768][ T253] netlink_sendmsg+0x723/0xbe0 [ 3368.537768][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3368.537768][ T253] ___sys_sendmsg+0xee/0x170 [ 3368.537768][ T253] __sys_sendmsg+0xcd/0x170 [ 3368.537768][ T253] do_syscall_64+0xc6/0x1e0 [ 3368.537768][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3368.537768][ T253] [ 3368.540111][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3368.540111][ T253] netdev_get_by_index+0x5e/0x80 [ 3368.540111][ T253] fib6_nh_init+0x3d8/0x1580 [ 3368.540111][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3368.540111][ T253] ip6_route_add+0x1c/0x140 [ 3368.540111][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3368.540111][ T253] addrconf_add_dev+0xe2/0x170 [ 3368.540111][ T253] inet6_addr_add+0x12f/0xa40 [ 3368.540111][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3368.540111][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3368.540111][ T253] netlink_rcv_skb+0x130/0x360 [ 3368.540111][ T253] netlink_unicast+0x449/0x710 [ 3368.540111][ T253] netlink_sendmsg+0x723/0xbe0 [ 3368.540111][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3368.540111][ T253] ___sys_sendmsg+0xee/0x170 [ 3368.540111][ T253] __sys_sendmsg+0xcd/0x170 [ 3368.540111][ T253] do_syscall_64+0xc6/0x1e0 [ 3368.540111][ T253] [ 3368.542438][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3368.542438][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3368.542438][ T253] ipv6_find_idev+0x102/0x170 [ 3368.542438][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3368.542438][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3368.542438][ T253] netlink_rcv_skb+0x130/0x360 [ 3368.542438][ T253] netlink_unicast+0x449/0x710 [ 3368.542438][ T253] netlink_sendmsg+0x723/0xbe0 [ 3368.542438][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3368.542438][ T253] ___sys_sendmsg+0xee/0x170 [ 3368.542438][ T253] __sys_sendmsg+0xcd/0x170 [ 3368.542438][ T253] do_syscall_64+0xc6/0x1e0 [ 3368.542438][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3368.542438][ T253] [ 3368.544272][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3368.544272][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3368.544272][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3368.544272][ T253] ipv6_find_idev+0x102/0x170 [ 3368.544272][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3368.544272][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3368.544272][ T253] netlink_rcv_skb+0x130/0x360 [ 3368.544272][ T253] netlink_unicast+0x449/0x710 [ 3368.544272][ T253] netlink_sendmsg+0x723/0xbe0 [ 3368.544272][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3368.544272][ T253] ___sys_sendmsg+0xee/0x170 [ 3368.544272][ T253] __sys_sendmsg+0xcd/0x170 [ 3368.544272][ T253] do_syscall_64+0xc6/0x1e0 [ 3368.544272][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3368.544272][ T253] [ 3378.786315][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3378.786815][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3378.786815][ T253] dst_init+0x84/0x4a0 [ 3378.786815][ T253] dst_alloc+0x97/0x150 [ 3378.786815][ T253] ip6_dst_alloc+0x23/0x90 [ 3378.786815][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3378.786815][ T253] ip6_pol_route+0x56f/0x840 [ 3378.786815][ T253] fib6_rule_lookup+0x334/0x630 [ 3378.786815][ T253] ip6_route_output_flags+0x259/0x480 [ 3378.786815][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3378.786815][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3378.786815][ T253] netlink_rcv_skb+0x130/0x360 [ 3378.786815][ T253] netlink_unicast+0x449/0x710 [ 3378.786815][ T253] netlink_sendmsg+0x723/0xbe0 [ 3378.786815][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3378.786815][ T253] ___sys_sendmsg+0xee/0x170 [ 3378.786815][ T253] __sys_sendmsg+0xcd/0x170 [ 3378.786815][ T253] do_syscall_64+0xc6/0x1e0 [ 3378.786815][ T253] [ 3378.789105][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3378.789105][ T253] netdev_get_by_index+0x5e/0x80 [ 3378.789105][ T253] fib6_nh_init+0x3d8/0x1580 [ 3378.789105][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3378.789105][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3378.789105][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3378.789105][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3378.789105][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3378.789105][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3378.789105][ T253] addrconf_dad_begin+0x310/0x670 [ 3378.789105][ T253] addrconf_dad_work+0x10b/0xab0 [ 3378.789105][ T253] process_one_work+0x84d/0x18a0 [ 3378.789105][ T253] worker_thread+0x587/0xd30 [ 3378.789105][ T253] kthread+0x28a/0x350 [ 3378.789105][ T253] ret_from_fork+0x31/0x70 [ 3378.789105][ T253] ret_from_fork_asm+0x1a/0x30 [ 3378.789105][ T253] [ 3378.791357][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3378.791357][ T253] netdev_get_by_index+0x5e/0x80 [ 3378.791357][ T253] fib6_nh_init+0x3d8/0x1580 [ 3378.791357][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3378.791357][ T253] ip6_route_add+0x1c/0x140 [ 3378.791357][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3378.791357][ T253] inet6_addr_add+0x4f8/0xa40 [ 3378.791357][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3378.791357][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3378.791357][ T253] netlink_rcv_skb+0x130/0x360 [ 3378.791357][ T253] netlink_unicast+0x449/0x710 [ 3378.791357][ T253] netlink_sendmsg+0x723/0xbe0 [ 3378.791357][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3378.791357][ T253] ___sys_sendmsg+0xee/0x170 [ 3378.791357][ T253] __sys_sendmsg+0xcd/0x170 [ 3378.791357][ T253] do_syscall_64+0xc6/0x1e0 [ 3378.791357][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3378.791357][ T253] [ 3378.793697][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3378.793697][ T253] netdev_get_by_index+0x5e/0x80 [ 3378.793697][ T253] fib6_nh_init+0x3d8/0x1580 [ 3378.793697][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3378.793697][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3378.793697][ T253] ipv6_add_addr+0x411/0x2000 [ 3378.793697][ T253] inet6_addr_add+0x30e/0xa40 [ 3378.793697][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3378.793697][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3378.793697][ T253] netlink_rcv_skb+0x130/0x360 [ 3378.793697][ T253] netlink_unicast+0x449/0x710 [ 3378.793697][ T253] netlink_sendmsg+0x723/0xbe0 [ 3378.793697][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3378.793697][ T253] ___sys_sendmsg+0xee/0x170 [ 3378.793697][ T253] __sys_sendmsg+0xcd/0x170 [ 3378.793697][ T253] do_syscall_64+0xc6/0x1e0 [ 3378.793697][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3378.793697][ T253] [ 3378.796028][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3378.796028][ T253] netdev_get_by_index+0x5e/0x80 [ 3378.796028][ T253] fib6_nh_init+0x3d8/0x1580 [ 3378.796028][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3378.796028][ T253] ip6_route_add+0x1c/0x140 [ 3378.796028][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3378.796028][ T253] addrconf_add_dev+0xe2/0x170 [ 3378.796028][ T253] inet6_addr_add+0x12f/0xa40 [ 3378.796028][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3378.796028][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3378.796028][ T253] netlink_rcv_skb+0x130/0x360 [ 3378.796028][ T253] netlink_unicast+0x449/0x710 [ 3378.796028][ T253] netlink_sendmsg+0x723/0xbe0 [ 3378.796028][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3378.796028][ T253] ___sys_sendmsg+0xee/0x170 [ 3378.796028][ T253] __sys_sendmsg+0xcd/0x170 [ 3378.796028][ T253] do_syscall_64+0xc6/0x1e0 [ 3378.796028][ T253] [ 3378.798324][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3378.798324][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3378.798324][ T253] ipv6_find_idev+0x102/0x170 [ 3378.798324][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3378.798324][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3378.798324][ T253] netlink_rcv_skb+0x130/0x360 [ 3378.798324][ T253] netlink_unicast+0x449/0x710 [ 3378.798324][ T253] netlink_sendmsg+0x723/0xbe0 [ 3378.798324][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3378.798324][ T253] ___sys_sendmsg+0xee/0x170 [ 3378.798324][ T253] __sys_sendmsg+0xcd/0x170 [ 3378.798324][ T253] do_syscall_64+0xc6/0x1e0 [ 3378.798324][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3378.798324][ T253] [ 3378.800118][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3378.800118][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3378.800118][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3378.800118][ T253] ipv6_find_idev+0x102/0x170 [ 3378.800118][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3378.800118][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3378.800118][ T253] netlink_rcv_skb+0x130/0x360 [ 3378.800118][ T253] netlink_unicast+0x449/0x710 [ 3378.800118][ T253] netlink_sendmsg+0x723/0xbe0 [ 3378.800118][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3378.800118][ T253] ___sys_sendmsg+0xee/0x170 [ 3378.800118][ T253] __sys_sendmsg+0xcd/0x170 [ 3378.800118][ T253] do_syscall_64+0xc6/0x1e0 [ 3378.800118][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3378.800118][ T253] [ 3388.914314][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3388.914747][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3388.914747][ T253] dst_init+0x84/0x4a0 [ 3388.914747][ T253] dst_alloc+0x97/0x150 [ 3388.914747][ T253] ip6_dst_alloc+0x23/0x90 [ 3388.914747][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3388.914747][ T253] ip6_pol_route+0x56f/0x840 [ 3388.914747][ T253] fib6_rule_lookup+0x334/0x630 [ 3388.914747][ T253] ip6_route_output_flags+0x259/0x480 [ 3388.914747][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3388.914747][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3388.914747][ T253] netlink_rcv_skb+0x130/0x360 [ 3388.914747][ T253] netlink_unicast+0x449/0x710 [ 3388.914747][ T253] netlink_sendmsg+0x723/0xbe0 [ 3388.914747][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3388.914747][ T253] ___sys_sendmsg+0xee/0x170 [ 3388.914747][ T253] __sys_sendmsg+0xcd/0x170 [ 3388.914747][ T253] do_syscall_64+0xc6/0x1e0 [ 3388.914747][ T253] [ 3388.917038][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3388.917038][ T253] netdev_get_by_index+0x5e/0x80 [ 3388.917038][ T253] fib6_nh_init+0x3d8/0x1580 [ 3388.917038][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3388.917038][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3388.917038][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3388.917038][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3388.917038][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3388.917038][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3388.917038][ T253] addrconf_dad_begin+0x310/0x670 [ 3388.917038][ T253] addrconf_dad_work+0x10b/0xab0 [ 3388.917038][ T253] process_one_work+0x84d/0x18a0 [ 3388.917038][ T253] worker_thread+0x587/0xd30 [ 3388.917038][ T253] kthread+0x28a/0x350 [ 3388.917038][ T253] ret_from_fork+0x31/0x70 [ 3388.917038][ T253] ret_from_fork_asm+0x1a/0x30 [ 3388.917038][ T253] [ 3388.919281][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3388.919281][ T253] netdev_get_by_index+0x5e/0x80 [ 3388.919281][ T253] fib6_nh_init+0x3d8/0x1580 [ 3388.919281][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3388.919281][ T253] ip6_route_add+0x1c/0x140 [ 3388.919281][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3388.919281][ T253] inet6_addr_add+0x4f8/0xa40 [ 3388.919281][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3388.919281][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3388.919281][ T253] netlink_rcv_skb+0x130/0x360 [ 3388.919281][ T253] netlink_unicast+0x449/0x710 [ 3388.919281][ T253] netlink_sendmsg+0x723/0xbe0 [ 3388.919281][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3388.919281][ T253] ___sys_sendmsg+0xee/0x170 [ 3388.919281][ T253] __sys_sendmsg+0xcd/0x170 [ 3388.919281][ T253] do_syscall_64+0xc6/0x1e0 [ 3388.919281][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3388.919281][ T253] [ 3388.921635][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3388.921635][ T253] netdev_get_by_index+0x5e/0x80 [ 3388.921635][ T253] fib6_nh_init+0x3d8/0x1580 [ 3388.921635][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3388.921635][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3388.921635][ T253] ipv6_add_addr+0x411/0x2000 [ 3388.921635][ T253] inet6_addr_add+0x30e/0xa40 [ 3388.921635][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3388.921635][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3388.921635][ T253] netlink_rcv_skb+0x130/0x360 [ 3388.921635][ T253] netlink_unicast+0x449/0x710 [ 3388.921635][ T253] netlink_sendmsg+0x723/0xbe0 [ 3388.921635][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3388.921635][ T253] ___sys_sendmsg+0xee/0x170 [ 3388.921635][ T253] __sys_sendmsg+0xcd/0x170 [ 3388.921635][ T253] do_syscall_64+0xc6/0x1e0 [ 3388.921635][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3388.921635][ T253] [ 3388.923997][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3388.923997][ T253] netdev_get_by_index+0x5e/0x80 [ 3388.923997][ T253] fib6_nh_init+0x3d8/0x1580 [ 3388.923997][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3388.923997][ T253] ip6_route_add+0x1c/0x140 [ 3388.923997][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3388.923997][ T253] addrconf_add_dev+0xe2/0x170 [ 3388.923997][ T253] inet6_addr_add+0x12f/0xa40 [ 3388.923997][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3388.923997][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3388.923997][ T253] netlink_rcv_skb+0x130/0x360 [ 3388.923997][ T253] netlink_unicast+0x449/0x710 [ 3388.923997][ T253] netlink_sendmsg+0x723/0xbe0 [ 3388.923997][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3388.923997][ T253] ___sys_sendmsg+0xee/0x170 [ 3388.923997][ T253] __sys_sendmsg+0xcd/0x170 [ 3388.923997][ T253] do_syscall_64+0xc6/0x1e0 [ 3388.923997][ T253] [ 3388.926303][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3388.926303][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3388.926303][ T253] ipv6_find_idev+0x102/0x170 [ 3388.926303][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3388.926303][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3388.926303][ T253] netlink_rcv_skb+0x130/0x360 [ 3388.926303][ T253] netlink_unicast+0x449/0x710 [ 3388.926303][ T253] netlink_sendmsg+0x723/0xbe0 [ 3388.926303][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3388.926303][ T253] ___sys_sendmsg+0xee/0x170 [ 3388.926303][ T253] __sys_sendmsg+0xcd/0x170 [ 3388.926303][ T253] do_syscall_64+0xc6/0x1e0 [ 3388.926303][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3388.926303][ T253] [ 3388.928106][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3388.928106][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3388.928106][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3388.928106][ T253] ipv6_find_idev+0x102/0x170 [ 3388.928106][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3388.928106][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3388.928106][ T253] netlink_rcv_skb+0x130/0x360 [ 3388.928106][ T253] netlink_unicast+0x449/0x710 [ 3388.928106][ T253] netlink_sendmsg+0x723/0xbe0 [ 3388.928106][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3388.928106][ T253] ___sys_sendmsg+0xee/0x170 [ 3388.928106][ T253] __sys_sendmsg+0xcd/0x170 [ 3388.928106][ T253] do_syscall_64+0xc6/0x1e0 [ 3388.928106][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3388.928106][ T253] [ 3399.178240][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3399.178723][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3399.178723][ T253] dst_init+0x84/0x4a0 [ 3399.178723][ T253] dst_alloc+0x97/0x150 [ 3399.178723][ T253] ip6_dst_alloc+0x23/0x90 [ 3399.178723][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3399.178723][ T253] ip6_pol_route+0x56f/0x840 [ 3399.178723][ T253] fib6_rule_lookup+0x334/0x630 [ 3399.178723][ T253] ip6_route_output_flags+0x259/0x480 [ 3399.178723][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3399.178723][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3399.178723][ T253] netlink_rcv_skb+0x130/0x360 [ 3399.178723][ T253] netlink_unicast+0x449/0x710 [ 3399.178723][ T253] netlink_sendmsg+0x723/0xbe0 [ 3399.178723][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3399.178723][ T253] ___sys_sendmsg+0xee/0x170 [ 3399.178723][ T253] __sys_sendmsg+0xcd/0x170 [ 3399.178723][ T253] do_syscall_64+0xc6/0x1e0 [ 3399.178723][ T253] [ 3399.180923][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3399.180923][ T253] netdev_get_by_index+0x5e/0x80 [ 3399.180923][ T253] fib6_nh_init+0x3d8/0x1580 [ 3399.180923][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3399.180923][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3399.180923][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3399.180923][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3399.180923][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3399.180923][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3399.180923][ T253] addrconf_dad_begin+0x310/0x670 [ 3399.180923][ T253] addrconf_dad_work+0x10b/0xab0 [ 3399.180923][ T253] process_one_work+0x84d/0x18a0 [ 3399.180923][ T253] worker_thread+0x587/0xd30 [ 3399.180923][ T253] kthread+0x28a/0x350 [ 3399.180923][ T253] ret_from_fork+0x31/0x70 [ 3399.180923][ T253] ret_from_fork_asm+0x1a/0x30 [ 3399.180923][ T253] [ 3399.183055][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3399.183055][ T253] netdev_get_by_index+0x5e/0x80 [ 3399.183055][ T253] fib6_nh_init+0x3d8/0x1580 [ 3399.183055][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3399.183055][ T253] ip6_route_add+0x1c/0x140 [ 3399.183055][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3399.183055][ T253] inet6_addr_add+0x4f8/0xa40 [ 3399.183055][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3399.183055][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3399.183055][ T253] netlink_rcv_skb+0x130/0x360 [ 3399.183055][ T253] netlink_unicast+0x449/0x710 [ 3399.183055][ T253] netlink_sendmsg+0x723/0xbe0 [ 3399.183055][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3399.183055][ T253] ___sys_sendmsg+0xee/0x170 [ 3399.183055][ T253] __sys_sendmsg+0xcd/0x170 [ 3399.183055][ T253] do_syscall_64+0xc6/0x1e0 [ 3399.183055][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3399.183055][ T253] [ 3399.185313][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3399.185313][ T253] netdev_get_by_index+0x5e/0x80 [ 3399.185313][ T253] fib6_nh_init+0x3d8/0x1580 [ 3399.185313][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3399.185313][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3399.185313][ T253] ipv6_add_addr+0x411/0x2000 [ 3399.185313][ T253] inet6_addr_add+0x30e/0xa40 [ 3399.185313][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3399.185313][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3399.185313][ T253] netlink_rcv_skb+0x130/0x360 [ 3399.185313][ T253] netlink_unicast+0x449/0x710 [ 3399.185313][ T253] netlink_sendmsg+0x723/0xbe0 [ 3399.185313][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3399.185313][ T253] ___sys_sendmsg+0xee/0x170 [ 3399.185313][ T253] __sys_sendmsg+0xcd/0x170 [ 3399.185313][ T253] do_syscall_64+0xc6/0x1e0 [ 3399.185313][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3399.185313][ T253] [ 3399.187548][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3399.187548][ T253] netdev_get_by_index+0x5e/0x80 [ 3399.187548][ T253] fib6_nh_init+0x3d8/0x1580 [ 3399.187548][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3399.187548][ T253] ip6_route_add+0x1c/0x140 [ 3399.187548][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3399.187548][ T253] addrconf_add_dev+0xe2/0x170 [ 3399.187548][ T253] inet6_addr_add+0x12f/0xa40 [ 3399.187548][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3399.187548][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3399.187548][ T253] netlink_rcv_skb+0x130/0x360 [ 3399.187548][ T253] netlink_unicast+0x449/0x710 [ 3399.187548][ T253] netlink_sendmsg+0x723/0xbe0 [ 3399.187548][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3399.187548][ T253] ___sys_sendmsg+0xee/0x170 [ 3399.187548][ T253] __sys_sendmsg+0xcd/0x170 [ 3399.187548][ T253] do_syscall_64+0xc6/0x1e0 [ 3399.187548][ T253] [ 3399.189744][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3399.189744][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3399.189744][ T253] ipv6_find_idev+0x102/0x170 [ 3399.189744][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3399.189744][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3399.189744][ T253] netlink_rcv_skb+0x130/0x360 [ 3399.189744][ T253] netlink_unicast+0x449/0x710 [ 3399.189744][ T253] netlink_sendmsg+0x723/0xbe0 [ 3399.189744][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3399.189744][ T253] ___sys_sendmsg+0xee/0x170 [ 3399.189744][ T253] __sys_sendmsg+0xcd/0x170 [ 3399.189744][ T253] do_syscall_64+0xc6/0x1e0 [ 3399.189744][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3399.189744][ T253] [ 3399.191465][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3399.191465][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3399.191465][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3399.191465][ T253] ipv6_find_idev+0x102/0x170 [ 3399.191465][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3399.191465][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3399.191465][ T253] netlink_rcv_skb+0x130/0x360 [ 3399.191465][ T253] netlink_unicast+0x449/0x710 [ 3399.191465][ T253] netlink_sendmsg+0x723/0xbe0 [ 3399.191465][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3399.191465][ T253] ___sys_sendmsg+0xee/0x170 [ 3399.191465][ T253] __sys_sendmsg+0xcd/0x170 [ 3399.191465][ T253] do_syscall_64+0xc6/0x1e0 [ 3399.191465][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3399.191465][ T253] [ 3409.338337][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3409.338753][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3409.338753][ T253] dst_init+0x84/0x4a0 [ 3409.338753][ T253] dst_alloc+0x97/0x150 [ 3409.338753][ T253] ip6_dst_alloc+0x23/0x90 [ 3409.338753][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3409.338753][ T253] ip6_pol_route+0x56f/0x840 [ 3409.338753][ T253] fib6_rule_lookup+0x334/0x630 [ 3409.338753][ T253] ip6_route_output_flags+0x259/0x480 [ 3409.338753][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3409.338753][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3409.338753][ T253] netlink_rcv_skb+0x130/0x360 [ 3409.338753][ T253] netlink_unicast+0x449/0x710 [ 3409.338753][ T253] netlink_sendmsg+0x723/0xbe0 [ 3409.338753][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3409.338753][ T253] ___sys_sendmsg+0xee/0x170 [ 3409.338753][ T253] __sys_sendmsg+0xcd/0x170 [ 3409.338753][ T253] do_syscall_64+0xc6/0x1e0 [ 3409.338753][ T253] [ 3409.340953][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3409.340953][ T253] netdev_get_by_index+0x5e/0x80 [ 3409.340953][ T253] fib6_nh_init+0x3d8/0x1580 [ 3409.340953][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3409.340953][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3409.340953][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3409.340953][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3409.340953][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3409.340953][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3409.340953][ T253] addrconf_dad_begin+0x310/0x670 [ 3409.340953][ T253] addrconf_dad_work+0x10b/0xab0 [ 3409.340953][ T253] process_one_work+0x84d/0x18a0 [ 3409.340953][ T253] worker_thread+0x587/0xd30 [ 3409.340953][ T253] kthread+0x28a/0x350 [ 3409.340953][ T253] ret_from_fork+0x31/0x70 [ 3409.340953][ T253] ret_from_fork_asm+0x1a/0x30 [ 3409.340953][ T253] [ 3409.343111][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3409.343111][ T253] netdev_get_by_index+0x5e/0x80 [ 3409.343111][ T253] fib6_nh_init+0x3d8/0x1580 [ 3409.343111][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3409.343111][ T253] ip6_route_add+0x1c/0x140 [ 3409.343111][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3409.343111][ T253] inet6_addr_add+0x4f8/0xa40 [ 3409.343111][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3409.343111][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3409.343111][ T253] netlink_rcv_skb+0x130/0x360 [ 3409.343111][ T253] netlink_unicast+0x449/0x710 [ 3409.343111][ T253] netlink_sendmsg+0x723/0xbe0 [ 3409.343111][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3409.343111][ T253] ___sys_sendmsg+0xee/0x170 [ 3409.343111][ T253] __sys_sendmsg+0xcd/0x170 [ 3409.343111][ T253] do_syscall_64+0xc6/0x1e0 [ 3409.343111][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3409.343111][ T253] [ 3409.345365][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3409.345365][ T253] netdev_get_by_index+0x5e/0x80 [ 3409.345365][ T253] fib6_nh_init+0x3d8/0x1580 [ 3409.345365][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3409.345365][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3409.345365][ T253] ipv6_add_addr+0x411/0x2000 [ 3409.345365][ T253] inet6_addr_add+0x30e/0xa40 [ 3409.345365][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3409.345365][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3409.345365][ T253] netlink_rcv_skb+0x130/0x360 [ 3409.345365][ T253] netlink_unicast+0x449/0x710 [ 3409.345365][ T253] netlink_sendmsg+0x723/0xbe0 [ 3409.345365][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3409.345365][ T253] ___sys_sendmsg+0xee/0x170 [ 3409.345365][ T253] __sys_sendmsg+0xcd/0x170 [ 3409.345365][ T253] do_syscall_64+0xc6/0x1e0 [ 3409.345365][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3409.345365][ T253] [ 3409.347608][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3409.347608][ T253] netdev_get_by_index+0x5e/0x80 [ 3409.347608][ T253] fib6_nh_init+0x3d8/0x1580 [ 3409.347608][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3409.347608][ T253] ip6_route_add+0x1c/0x140 [ 3409.347608][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3409.347608][ T253] addrconf_add_dev+0xe2/0x170 [ 3409.347608][ T253] inet6_addr_add+0x12f/0xa40 [ 3409.347608][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3409.347608][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3409.347608][ T253] netlink_rcv_skb+0x130/0x360 [ 3409.347608][ T253] netlink_unicast+0x449/0x710 [ 3409.347608][ T253] netlink_sendmsg+0x723/0xbe0 [ 3409.347608][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3409.347608][ T253] ___sys_sendmsg+0xee/0x170 [ 3409.347608][ T253] __sys_sendmsg+0xcd/0x170 [ 3409.347608][ T253] do_syscall_64+0xc6/0x1e0 [ 3409.347608][ T253] [ 3409.349814][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3409.349814][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3409.349814][ T253] ipv6_find_idev+0x102/0x170 [ 3409.349814][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3409.349814][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3409.349814][ T253] netlink_rcv_skb+0x130/0x360 [ 3409.349814][ T253] netlink_unicast+0x449/0x710 [ 3409.349814][ T253] netlink_sendmsg+0x723/0xbe0 [ 3409.349814][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3409.349814][ T253] ___sys_sendmsg+0xee/0x170 [ 3409.349814][ T253] __sys_sendmsg+0xcd/0x170 [ 3409.349814][ T253] do_syscall_64+0xc6/0x1e0 [ 3409.349814][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3409.349814][ T253] [ 3409.351535][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3409.351535][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3409.351535][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3409.351535][ T253] ipv6_find_idev+0x102/0x170 [ 3409.351535][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3409.351535][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3409.351535][ T253] netlink_rcv_skb+0x130/0x360 [ 3409.351535][ T253] netlink_unicast+0x449/0x710 [ 3409.351535][ T253] netlink_sendmsg+0x723/0xbe0 [ 3409.351535][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3409.351535][ T253] ___sys_sendmsg+0xee/0x170 [ 3409.351535][ T253] __sys_sendmsg+0xcd/0x170 [ 3409.351535][ T253] do_syscall_64+0xc6/0x1e0 [ 3409.351535][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3409.351535][ T253] [ 3419.594302][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3419.594718][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3419.594718][ T253] dst_init+0x84/0x4a0 [ 3419.594718][ T253] dst_alloc+0x97/0x150 [ 3419.594718][ T253] ip6_dst_alloc+0x23/0x90 [ 3419.594718][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3419.594718][ T253] ip6_pol_route+0x56f/0x840 [ 3419.594718][ T253] fib6_rule_lookup+0x334/0x630 [ 3419.594718][ T253] ip6_route_output_flags+0x259/0x480 [ 3419.594718][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3419.594718][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3419.594718][ T253] netlink_rcv_skb+0x130/0x360 [ 3419.594718][ T253] netlink_unicast+0x449/0x710 [ 3419.594718][ T253] netlink_sendmsg+0x723/0xbe0 [ 3419.594718][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3419.594718][ T253] ___sys_sendmsg+0xee/0x170 [ 3419.594718][ T253] __sys_sendmsg+0xcd/0x170 [ 3419.594718][ T253] do_syscall_64+0xc6/0x1e0 [ 3419.594718][ T253] [ 3419.596919][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3419.596919][ T253] netdev_get_by_index+0x5e/0x80 [ 3419.596919][ T253] fib6_nh_init+0x3d8/0x1580 [ 3419.596919][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3419.596919][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3419.596919][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3419.596919][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3419.596919][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3419.596919][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3419.596919][ T253] addrconf_dad_begin+0x310/0x670 [ 3419.596919][ T253] addrconf_dad_work+0x10b/0xab0 [ 3419.596919][ T253] process_one_work+0x84d/0x18a0 [ 3419.596919][ T253] worker_thread+0x587/0xd30 [ 3419.596919][ T253] kthread+0x28a/0x350 [ 3419.596919][ T253] ret_from_fork+0x31/0x70 [ 3419.596919][ T253] ret_from_fork_asm+0x1a/0x30 [ 3419.596919][ T253] [ 3419.599074][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3419.599074][ T253] netdev_get_by_index+0x5e/0x80 [ 3419.599074][ T253] fib6_nh_init+0x3d8/0x1580 [ 3419.599074][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3419.599074][ T253] ip6_route_add+0x1c/0x140 [ 3419.599074][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3419.599074][ T253] inet6_addr_add+0x4f8/0xa40 [ 3419.599074][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3419.599074][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3419.599074][ T253] netlink_rcv_skb+0x130/0x360 [ 3419.599074][ T253] netlink_unicast+0x449/0x710 [ 3419.599074][ T253] netlink_sendmsg+0x723/0xbe0 [ 3419.599074][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3419.599074][ T253] ___sys_sendmsg+0xee/0x170 [ 3419.599074][ T253] __sys_sendmsg+0xcd/0x170 [ 3419.599074][ T253] do_syscall_64+0xc6/0x1e0 [ 3419.599074][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3419.599074][ T253] [ 3419.601322][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3419.601322][ T253] netdev_get_by_index+0x5e/0x80 [ 3419.601322][ T253] fib6_nh_init+0x3d8/0x1580 [ 3419.601322][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3419.601322][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3419.601322][ T253] ipv6_add_addr+0x411/0x2000 [ 3419.601322][ T253] inet6_addr_add+0x30e/0xa40 [ 3419.601322][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3419.601322][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3419.601322][ T253] netlink_rcv_skb+0x130/0x360 [ 3419.601322][ T253] netlink_unicast+0x449/0x710 [ 3419.601322][ T253] netlink_sendmsg+0x723/0xbe0 [ 3419.601322][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3419.601322][ T253] ___sys_sendmsg+0xee/0x170 [ 3419.601322][ T253] __sys_sendmsg+0xcd/0x170 [ 3419.601322][ T253] do_syscall_64+0xc6/0x1e0 [ 3419.601322][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3419.601322][ T253] [ 3419.603600][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3419.603600][ T253] netdev_get_by_index+0x5e/0x80 [ 3419.603600][ T253] fib6_nh_init+0x3d8/0x1580 [ 3419.603600][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3419.603600][ T253] ip6_route_add+0x1c/0x140 [ 3419.603600][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3419.603600][ T253] addrconf_add_dev+0xe2/0x170 [ 3419.603600][ T253] inet6_addr_add+0x12f/0xa40 [ 3419.603600][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3419.603600][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3419.603600][ T253] netlink_rcv_skb+0x130/0x360 [ 3419.603600][ T253] netlink_unicast+0x449/0x710 [ 3419.603600][ T253] netlink_sendmsg+0x723/0xbe0 [ 3419.603600][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3419.603600][ T253] ___sys_sendmsg+0xee/0x170 [ 3419.603600][ T253] __sys_sendmsg+0xcd/0x170 [ 3419.603600][ T253] do_syscall_64+0xc6/0x1e0 [ 3419.603600][ T253] [ 3419.605844][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3419.605844][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3419.605844][ T253] ipv6_find_idev+0x102/0x170 [ 3419.605844][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3419.605844][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3419.605844][ T253] netlink_rcv_skb+0x130/0x360 [ 3419.605844][ T253] netlink_unicast+0x449/0x710 [ 3419.605844][ T253] netlink_sendmsg+0x723/0xbe0 [ 3419.605844][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3419.605844][ T253] ___sys_sendmsg+0xee/0x170 [ 3419.605844][ T253] __sys_sendmsg+0xcd/0x170 [ 3419.605844][ T253] do_syscall_64+0xc6/0x1e0 [ 3419.605844][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3419.605844][ T253] [ 3419.607576][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3419.607576][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3419.607576][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3419.607576][ T253] ipv6_find_idev+0x102/0x170 [ 3419.607576][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3419.607576][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3419.607576][ T253] netlink_rcv_skb+0x130/0x360 [ 3419.607576][ T253] netlink_unicast+0x449/0x710 [ 3419.607576][ T253] netlink_sendmsg+0x723/0xbe0 [ 3419.607576][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3419.607576][ T253] ___sys_sendmsg+0xee/0x170 [ 3419.607576][ T253] __sys_sendmsg+0xcd/0x170 [ 3419.607576][ T253] do_syscall_64+0xc6/0x1e0 [ 3419.607576][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3419.607576][ T253] [ 3429.850312][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3429.850723][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3429.850723][ T253] dst_init+0x84/0x4a0 [ 3429.850723][ T253] dst_alloc+0x97/0x150 [ 3429.850723][ T253] ip6_dst_alloc+0x23/0x90 [ 3429.850723][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3429.850723][ T253] ip6_pol_route+0x56f/0x840 [ 3429.850723][ T253] fib6_rule_lookup+0x334/0x630 [ 3429.850723][ T253] ip6_route_output_flags+0x259/0x480 [ 3429.850723][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3429.850723][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3429.850723][ T253] netlink_rcv_skb+0x130/0x360 [ 3429.850723][ T253] netlink_unicast+0x449/0x710 [ 3429.850723][ T253] netlink_sendmsg+0x723/0xbe0 [ 3429.850723][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3429.850723][ T253] ___sys_sendmsg+0xee/0x170 [ 3429.850723][ T253] __sys_sendmsg+0xcd/0x170 [ 3429.850723][ T253] do_syscall_64+0xc6/0x1e0 [ 3429.850723][ T253] [ 3429.852924][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3429.852924][ T253] netdev_get_by_index+0x5e/0x80 [ 3429.852924][ T253] fib6_nh_init+0x3d8/0x1580 [ 3429.852924][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3429.852924][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3429.852924][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3429.852924][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3429.852924][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3429.852924][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3429.852924][ T253] addrconf_dad_begin+0x310/0x670 [ 3429.852924][ T253] addrconf_dad_work+0x10b/0xab0 [ 3429.852924][ T253] process_one_work+0x84d/0x18a0 [ 3429.852924][ T253] worker_thread+0x587/0xd30 [ 3429.852924][ T253] kthread+0x28a/0x350 [ 3429.852924][ T253] ret_from_fork+0x31/0x70 [ 3429.852924][ T253] ret_from_fork_asm+0x1a/0x30 [ 3429.852924][ T253] [ 3429.855097][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3429.855097][ T253] netdev_get_by_index+0x5e/0x80 [ 3429.855097][ T253] fib6_nh_init+0x3d8/0x1580 [ 3429.855097][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3429.855097][ T253] ip6_route_add+0x1c/0x140 [ 3429.855097][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3429.855097][ T253] inet6_addr_add+0x4f8/0xa40 [ 3429.855097][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3429.855097][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3429.855097][ T253] netlink_rcv_skb+0x130/0x360 [ 3429.855097][ T253] netlink_unicast+0x449/0x710 [ 3429.855097][ T253] netlink_sendmsg+0x723/0xbe0 [ 3429.855097][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3429.855097][ T253] ___sys_sendmsg+0xee/0x170 [ 3429.855097][ T253] __sys_sendmsg+0xcd/0x170 [ 3429.855097][ T253] do_syscall_64+0xc6/0x1e0 [ 3429.855097][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3429.855097][ T253] [ 3429.857346][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3429.857346][ T253] netdev_get_by_index+0x5e/0x80 [ 3429.857346][ T253] fib6_nh_init+0x3d8/0x1580 [ 3429.857346][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3429.857346][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3429.857346][ T253] ipv6_add_addr+0x411/0x2000 [ 3429.857346][ T253] inet6_addr_add+0x30e/0xa40 [ 3429.857346][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3429.857346][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3429.857346][ T253] netlink_rcv_skb+0x130/0x360 [ 3429.857346][ T253] netlink_unicast+0x449/0x710 [ 3429.857346][ T253] netlink_sendmsg+0x723/0xbe0 [ 3429.857346][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3429.857346][ T253] ___sys_sendmsg+0xee/0x170 [ 3429.857346][ T253] __sys_sendmsg+0xcd/0x170 [ 3429.857346][ T253] do_syscall_64+0xc6/0x1e0 [ 3429.857346][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3429.857346][ T253] [ 3429.859619][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3429.859619][ T253] netdev_get_by_index+0x5e/0x80 [ 3429.859619][ T253] fib6_nh_init+0x3d8/0x1580 [ 3429.859619][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3429.859619][ T253] ip6_route_add+0x1c/0x140 [ 3429.859619][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3429.859619][ T253] addrconf_add_dev+0xe2/0x170 [ 3429.859619][ T253] inet6_addr_add+0x12f/0xa40 [ 3429.859619][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3429.859619][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3429.859619][ T253] netlink_rcv_skb+0x130/0x360 [ 3429.859619][ T253] netlink_unicast+0x449/0x710 [ 3429.859619][ T253] netlink_sendmsg+0x723/0xbe0 [ 3429.859619][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3429.859619][ T253] ___sys_sendmsg+0xee/0x170 [ 3429.859619][ T253] __sys_sendmsg+0xcd/0x170 [ 3429.859619][ T253] do_syscall_64+0xc6/0x1e0 [ 3429.859619][ T253] [ 3429.861835][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3429.861835][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3429.861835][ T253] ipv6_find_idev+0x102/0x170 [ 3429.861835][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3429.861835][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3429.861835][ T253] netlink_rcv_skb+0x130/0x360 [ 3429.861835][ T253] netlink_unicast+0x449/0x710 [ 3429.861835][ T253] netlink_sendmsg+0x723/0xbe0 [ 3429.861835][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3429.861835][ T253] ___sys_sendmsg+0xee/0x170 [ 3429.861835][ T253] __sys_sendmsg+0xcd/0x170 [ 3429.861835][ T253] do_syscall_64+0xc6/0x1e0 [ 3429.861835][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3429.861835][ T253] [ 3429.863572][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3429.863572][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3429.863572][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3429.863572][ T253] ipv6_find_idev+0x102/0x170 [ 3429.863572][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3429.863572][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3429.863572][ T253] netlink_rcv_skb+0x130/0x360 [ 3429.863572][ T253] netlink_unicast+0x449/0x710 [ 3429.863572][ T253] netlink_sendmsg+0x723/0xbe0 [ 3429.863572][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3429.863572][ T253] ___sys_sendmsg+0xee/0x170 [ 3429.863572][ T253] __sys_sendmsg+0xcd/0x170 [ 3429.863572][ T253] do_syscall_64+0xc6/0x1e0 [ 3429.863572][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3429.863572][ T253] [ 3440.106252][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3440.106667][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3440.106667][ T253] dst_init+0x84/0x4a0 [ 3440.106667][ T253] dst_alloc+0x97/0x150 [ 3440.106667][ T253] ip6_dst_alloc+0x23/0x90 [ 3440.106667][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3440.106667][ T253] ip6_pol_route+0x56f/0x840 [ 3440.106667][ T253] fib6_rule_lookup+0x334/0x630 [ 3440.106667][ T253] ip6_route_output_flags+0x259/0x480 [ 3440.106667][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3440.106667][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3440.106667][ T253] netlink_rcv_skb+0x130/0x360 [ 3440.106667][ T253] netlink_unicast+0x449/0x710 [ 3440.106667][ T253] netlink_sendmsg+0x723/0xbe0 [ 3440.106667][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3440.106667][ T253] ___sys_sendmsg+0xee/0x170 [ 3440.106667][ T253] __sys_sendmsg+0xcd/0x170 [ 3440.106667][ T253] do_syscall_64+0xc6/0x1e0 [ 3440.106667][ T253] [ 3440.108879][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3440.108879][ T253] netdev_get_by_index+0x5e/0x80 [ 3440.108879][ T253] fib6_nh_init+0x3d8/0x1580 [ 3440.108879][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3440.108879][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3440.108879][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3440.108879][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3440.108879][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3440.108879][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3440.108879][ T253] addrconf_dad_begin+0x310/0x670 [ 3440.108879][ T253] addrconf_dad_work+0x10b/0xab0 [ 3440.108879][ T253] process_one_work+0x84d/0x18a0 [ 3440.108879][ T253] worker_thread+0x587/0xd30 [ 3440.108879][ T253] kthread+0x28a/0x350 [ 3440.108879][ T253] ret_from_fork+0x31/0x70 [ 3440.108879][ T253] ret_from_fork_asm+0x1a/0x30 [ 3440.108879][ T253] [ 3440.111041][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3440.111041][ T253] netdev_get_by_index+0x5e/0x80 [ 3440.111041][ T253] fib6_nh_init+0x3d8/0x1580 [ 3440.111041][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3440.111041][ T253] ip6_route_add+0x1c/0x140 [ 3440.111041][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3440.111041][ T253] inet6_addr_add+0x4f8/0xa40 [ 3440.111041][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3440.111041][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3440.111041][ T253] netlink_rcv_skb+0x130/0x360 [ 3440.111041][ T253] netlink_unicast+0x449/0x710 [ 3440.111041][ T253] netlink_sendmsg+0x723/0xbe0 [ 3440.111041][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3440.111041][ T253] ___sys_sendmsg+0xee/0x170 [ 3440.111041][ T253] __sys_sendmsg+0xcd/0x170 [ 3440.111041][ T253] do_syscall_64+0xc6/0x1e0 [ 3440.111041][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3440.111041][ T253] [ 3440.113311][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3440.113311][ T253] netdev_get_by_index+0x5e/0x80 [ 3440.113311][ T253] fib6_nh_init+0x3d8/0x1580 [ 3440.113311][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3440.113311][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3440.113311][ T253] ipv6_add_addr+0x411/0x2000 [ 3440.113311][ T253] inet6_addr_add+0x30e/0xa40 [ 3440.113311][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3440.113311][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3440.113311][ T253] netlink_rcv_skb+0x130/0x360 [ 3440.113311][ T253] netlink_unicast+0x449/0x710 [ 3440.113311][ T253] netlink_sendmsg+0x723/0xbe0 [ 3440.113311][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3440.113311][ T253] ___sys_sendmsg+0xee/0x170 [ 3440.113311][ T253] __sys_sendmsg+0xcd/0x170 [ 3440.113311][ T253] do_syscall_64+0xc6/0x1e0 [ 3440.113311][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3440.113311][ T253] [ 3440.115563][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3440.115563][ T253] netdev_get_by_index+0x5e/0x80 [ 3440.115563][ T253] fib6_nh_init+0x3d8/0x1580 [ 3440.115563][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3440.115563][ T253] ip6_route_add+0x1c/0x140 [ 3440.115563][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3440.115563][ T253] addrconf_add_dev+0xe2/0x170 [ 3440.115563][ T253] inet6_addr_add+0x12f/0xa40 [ 3440.115563][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3440.115563][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3440.115563][ T253] netlink_rcv_skb+0x130/0x360 [ 3440.115563][ T253] netlink_unicast+0x449/0x710 [ 3440.115563][ T253] netlink_sendmsg+0x723/0xbe0 [ 3440.115563][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3440.115563][ T253] ___sys_sendmsg+0xee/0x170 [ 3440.115563][ T253] __sys_sendmsg+0xcd/0x170 [ 3440.115563][ T253] do_syscall_64+0xc6/0x1e0 [ 3440.115563][ T253] [ 3440.117772][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3440.117772][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3440.117772][ T253] ipv6_find_idev+0x102/0x170 [ 3440.117772][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3440.117772][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3440.117772][ T253] netlink_rcv_skb+0x130/0x360 [ 3440.117772][ T253] netlink_unicast+0x449/0x710 [ 3440.117772][ T253] netlink_sendmsg+0x723/0xbe0 [ 3440.117772][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3440.117772][ T253] ___sys_sendmsg+0xee/0x170 [ 3440.117772][ T253] __sys_sendmsg+0xcd/0x170 [ 3440.117772][ T253] do_syscall_64+0xc6/0x1e0 [ 3440.117772][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3440.117772][ T253] [ 3440.119504][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3440.119504][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3440.119504][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3440.119504][ T253] ipv6_find_idev+0x102/0x170 [ 3440.119504][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3440.119504][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3440.119504][ T253] netlink_rcv_skb+0x130/0x360 [ 3440.119504][ T253] netlink_unicast+0x449/0x710 [ 3440.119504][ T253] netlink_sendmsg+0x723/0xbe0 [ 3440.119504][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3440.119504][ T253] ___sys_sendmsg+0xee/0x170 [ 3440.119504][ T253] __sys_sendmsg+0xcd/0x170 [ 3440.119504][ T253] do_syscall_64+0xc6/0x1e0 [ 3440.119504][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3440.119504][ T253] [ 3450.362309][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3450.363173][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3450.363173][ T253] dst_init+0x84/0x4a0 [ 3450.363173][ T253] dst_alloc+0x97/0x150 [ 3450.363173][ T253] ip6_dst_alloc+0x23/0x90 [ 3450.363173][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3450.363173][ T253] ip6_pol_route+0x56f/0x840 [ 3450.363173][ T253] fib6_rule_lookup+0x334/0x630 [ 3450.363173][ T253] ip6_route_output_flags+0x259/0x480 [ 3450.363173][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3450.363173][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3450.363173][ T253] netlink_rcv_skb+0x130/0x360 [ 3450.363173][ T253] netlink_unicast+0x449/0x710 [ 3450.363173][ T253] netlink_sendmsg+0x723/0xbe0 [ 3450.363173][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3450.363173][ T253] ___sys_sendmsg+0xee/0x170 [ 3450.363173][ T253] __sys_sendmsg+0xcd/0x170 [ 3450.363173][ T253] do_syscall_64+0xc6/0x1e0 [ 3450.363173][ T253] [ 3450.365384][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3450.365384][ T253] netdev_get_by_index+0x5e/0x80 [ 3450.365384][ T253] fib6_nh_init+0x3d8/0x1580 [ 3450.365384][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3450.365384][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3450.365384][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3450.365384][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3450.365384][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3450.365384][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3450.365384][ T253] addrconf_dad_begin+0x310/0x670 [ 3450.365384][ T253] addrconf_dad_work+0x10b/0xab0 [ 3450.365384][ T253] process_one_work+0x84d/0x18a0 [ 3450.365384][ T253] worker_thread+0x587/0xd30 [ 3450.365384][ T253] kthread+0x28a/0x350 [ 3450.365384][ T253] ret_from_fork+0x31/0x70 [ 3450.365384][ T253] ret_from_fork_asm+0x1a/0x30 [ 3450.365384][ T253] [ 3450.367525][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3450.367525][ T253] netdev_get_by_index+0x5e/0x80 [ 3450.367525][ T253] fib6_nh_init+0x3d8/0x1580 [ 3450.367525][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3450.367525][ T253] ip6_route_add+0x1c/0x140 [ 3450.367525][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3450.367525][ T253] inet6_addr_add+0x4f8/0xa40 [ 3450.367525][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3450.367525][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3450.367525][ T253] netlink_rcv_skb+0x130/0x360 [ 3450.367525][ T253] netlink_unicast+0x449/0x710 [ 3450.367525][ T253] netlink_sendmsg+0x723/0xbe0 [ 3450.367525][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3450.367525][ T253] ___sys_sendmsg+0xee/0x170 [ 3450.367525][ T253] __sys_sendmsg+0xcd/0x170 [ 3450.367525][ T253] do_syscall_64+0xc6/0x1e0 [ 3450.367525][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3450.367525][ T253] [ 3450.369766][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3450.369766][ T253] netdev_get_by_index+0x5e/0x80 [ 3450.369766][ T253] fib6_nh_init+0x3d8/0x1580 [ 3450.369766][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3450.369766][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3450.369766][ T253] ipv6_add_addr+0x411/0x2000 [ 3450.369766][ T253] inet6_addr_add+0x30e/0xa40 [ 3450.369766][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3450.369766][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3450.369766][ T253] netlink_rcv_skb+0x130/0x360 [ 3450.369766][ T253] netlink_unicast+0x449/0x710 [ 3450.369766][ T253] netlink_sendmsg+0x723/0xbe0 [ 3450.369766][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3450.369766][ T253] ___sys_sendmsg+0xee/0x170 [ 3450.369766][ T253] __sys_sendmsg+0xcd/0x170 [ 3450.369766][ T253] do_syscall_64+0xc6/0x1e0 [ 3450.369766][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3450.369766][ T253] [ 3450.372007][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3450.372007][ T253] netdev_get_by_index+0x5e/0x80 [ 3450.372007][ T253] fib6_nh_init+0x3d8/0x1580 [ 3450.372007][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3450.372007][ T253] ip6_route_add+0x1c/0x140 [ 3450.372007][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3450.372007][ T253] addrconf_add_dev+0xe2/0x170 [ 3450.372007][ T253] inet6_addr_add+0x12f/0xa40 [ 3450.372007][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3450.372007][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3450.372007][ T253] netlink_rcv_skb+0x130/0x360 [ 3450.372007][ T253] netlink_unicast+0x449/0x710 [ 3450.372007][ T253] netlink_sendmsg+0x723/0xbe0 [ 3450.372007][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3450.372007][ T253] ___sys_sendmsg+0xee/0x170 [ 3450.372007][ T253] __sys_sendmsg+0xcd/0x170 [ 3450.372007][ T253] do_syscall_64+0xc6/0x1e0 [ 3450.372007][ T253] [ 3450.374224][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3450.374224][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3450.374224][ T253] ipv6_find_idev+0x102/0x170 [ 3450.374224][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3450.374224][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3450.374224][ T253] netlink_rcv_skb+0x130/0x360 [ 3450.374224][ T253] netlink_unicast+0x449/0x710 [ 3450.374224][ T253] netlink_sendmsg+0x723/0xbe0 [ 3450.374224][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3450.374224][ T253] ___sys_sendmsg+0xee/0x170 [ 3450.374224][ T253] __sys_sendmsg+0xcd/0x170 [ 3450.374224][ T253] do_syscall_64+0xc6/0x1e0 [ 3450.374224][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3450.374224][ T253] [ 3450.375955][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3450.375955][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3450.375955][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3450.375955][ T253] ipv6_find_idev+0x102/0x170 [ 3450.375955][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3450.375955][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3450.375955][ T253] netlink_rcv_skb+0x130/0x360 [ 3450.375955][ T253] netlink_unicast+0x449/0x710 [ 3450.375955][ T253] netlink_sendmsg+0x723/0xbe0 [ 3450.375955][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3450.375955][ T253] ___sys_sendmsg+0xee/0x170 [ 3450.375955][ T253] __sys_sendmsg+0xcd/0x170 [ 3450.375955][ T253] do_syscall_64+0xc6/0x1e0 [ 3450.375955][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3450.375955][ T253] [ 3460.618323][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3460.618739][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3460.618739][ T253] dst_init+0x84/0x4a0 [ 3460.618739][ T253] dst_alloc+0x97/0x150 [ 3460.618739][ T253] ip6_dst_alloc+0x23/0x90 [ 3460.618739][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3460.618739][ T253] ip6_pol_route+0x56f/0x840 [ 3460.618739][ T253] fib6_rule_lookup+0x334/0x630 [ 3460.618739][ T253] ip6_route_output_flags+0x259/0x480 [ 3460.618739][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3460.618739][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3460.618739][ T253] netlink_rcv_skb+0x130/0x360 [ 3460.618739][ T253] netlink_unicast+0x449/0x710 [ 3460.618739][ T253] netlink_sendmsg+0x723/0xbe0 [ 3460.618739][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3460.618739][ T253] ___sys_sendmsg+0xee/0x170 [ 3460.618739][ T253] __sys_sendmsg+0xcd/0x170 [ 3460.618739][ T253] do_syscall_64+0xc6/0x1e0 [ 3460.618739][ T253] [ 3460.620952][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3460.620952][ T253] netdev_get_by_index+0x5e/0x80 [ 3460.620952][ T253] fib6_nh_init+0x3d8/0x1580 [ 3460.620952][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3460.620952][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3460.620952][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3460.620952][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3460.620952][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3460.620952][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3460.620952][ T253] addrconf_dad_begin+0x310/0x670 [ 3460.620952][ T253] addrconf_dad_work+0x10b/0xab0 [ 3460.620952][ T253] process_one_work+0x84d/0x18a0 [ 3460.620952][ T253] worker_thread+0x587/0xd30 [ 3460.620952][ T253] kthread+0x28a/0x350 [ 3460.620952][ T253] ret_from_fork+0x31/0x70 [ 3460.620952][ T253] ret_from_fork_asm+0x1a/0x30 [ 3460.620952][ T253] [ 3460.623092][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3460.623092][ T253] netdev_get_by_index+0x5e/0x80 [ 3460.623092][ T253] fib6_nh_init+0x3d8/0x1580 [ 3460.623092][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3460.623092][ T253] ip6_route_add+0x1c/0x140 [ 3460.623092][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3460.623092][ T253] inet6_addr_add+0x4f8/0xa40 [ 3460.623092][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3460.623092][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3460.623092][ T253] netlink_rcv_skb+0x130/0x360 [ 3460.623092][ T253] netlink_unicast+0x449/0x710 [ 3460.623092][ T253] netlink_sendmsg+0x723/0xbe0 [ 3460.623092][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3460.623092][ T253] ___sys_sendmsg+0xee/0x170 [ 3460.623092][ T253] __sys_sendmsg+0xcd/0x170 [ 3460.623092][ T253] do_syscall_64+0xc6/0x1e0 [ 3460.623092][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3460.623092][ T253] [ 3460.625347][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3460.625347][ T253] netdev_get_by_index+0x5e/0x80 [ 3460.625347][ T253] fib6_nh_init+0x3d8/0x1580 [ 3460.625347][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3460.625347][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3460.625347][ T253] ipv6_add_addr+0x411/0x2000 [ 3460.625347][ T253] inet6_addr_add+0x30e/0xa40 [ 3460.625347][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3460.625347][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3460.625347][ T253] netlink_rcv_skb+0x130/0x360 [ 3460.625347][ T253] netlink_unicast+0x449/0x710 [ 3460.625347][ T253] netlink_sendmsg+0x723/0xbe0 [ 3460.625347][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3460.625347][ T253] ___sys_sendmsg+0xee/0x170 [ 3460.625347][ T253] __sys_sendmsg+0xcd/0x170 [ 3460.625347][ T253] do_syscall_64+0xc6/0x1e0 [ 3460.625347][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3460.625347][ T253] [ 3460.627593][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3460.627593][ T253] netdev_get_by_index+0x5e/0x80 [ 3460.627593][ T253] fib6_nh_init+0x3d8/0x1580 [ 3460.627593][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3460.627593][ T253] ip6_route_add+0x1c/0x140 [ 3460.627593][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3460.627593][ T253] addrconf_add_dev+0xe2/0x170 [ 3460.627593][ T253] inet6_addr_add+0x12f/0xa40 [ 3460.627593][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3460.627593][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3460.627593][ T253] netlink_rcv_skb+0x130/0x360 [ 3460.627593][ T253] netlink_unicast+0x449/0x710 [ 3460.627593][ T253] netlink_sendmsg+0x723/0xbe0 [ 3460.627593][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3460.627593][ T253] ___sys_sendmsg+0xee/0x170 [ 3460.627593][ T253] __sys_sendmsg+0xcd/0x170 [ 3460.627593][ T253] do_syscall_64+0xc6/0x1e0 [ 3460.627593][ T253] [ 3460.629801][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3460.629801][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3460.629801][ T253] ipv6_find_idev+0x102/0x170 [ 3460.629801][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3460.629801][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3460.629801][ T253] netlink_rcv_skb+0x130/0x360 [ 3460.629801][ T253] netlink_unicast+0x449/0x710 [ 3460.629801][ T253] netlink_sendmsg+0x723/0xbe0 [ 3460.629801][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3460.629801][ T253] ___sys_sendmsg+0xee/0x170 [ 3460.629801][ T253] __sys_sendmsg+0xcd/0x170 [ 3460.629801][ T253] do_syscall_64+0xc6/0x1e0 [ 3460.629801][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3460.629801][ T253] [ 3460.631526][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3460.631526][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3460.631526][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3460.631526][ T253] ipv6_find_idev+0x102/0x170 [ 3460.631526][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3460.631526][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3460.631526][ T253] netlink_rcv_skb+0x130/0x360 [ 3460.631526][ T253] netlink_unicast+0x449/0x710 [ 3460.631526][ T253] netlink_sendmsg+0x723/0xbe0 [ 3460.631526][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3460.631526][ T253] ___sys_sendmsg+0xee/0x170 [ 3460.631526][ T253] __sys_sendmsg+0xcd/0x170 [ 3460.631526][ T253] do_syscall_64+0xc6/0x1e0 [ 3460.631526][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3460.631526][ T253] [ 3470.874318][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3470.874728][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3470.874728][ T253] dst_init+0x84/0x4a0 [ 3470.874728][ T253] dst_alloc+0x97/0x150 [ 3470.874728][ T253] ip6_dst_alloc+0x23/0x90 [ 3470.874728][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3470.874728][ T253] ip6_pol_route+0x56f/0x840 [ 3470.874728][ T253] fib6_rule_lookup+0x334/0x630 [ 3470.874728][ T253] ip6_route_output_flags+0x259/0x480 [ 3470.874728][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3470.874728][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3470.874728][ T253] netlink_rcv_skb+0x130/0x360 [ 3470.874728][ T253] netlink_unicast+0x449/0x710 [ 3470.874728][ T253] netlink_sendmsg+0x723/0xbe0 [ 3470.874728][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3470.874728][ T253] ___sys_sendmsg+0xee/0x170 [ 3470.874728][ T253] __sys_sendmsg+0xcd/0x170 [ 3470.874728][ T253] do_syscall_64+0xc6/0x1e0 [ 3470.874728][ T253] [ 3470.876960][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3470.876960][ T253] netdev_get_by_index+0x5e/0x80 [ 3470.876960][ T253] fib6_nh_init+0x3d8/0x1580 [ 3470.876960][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3470.876960][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3470.876960][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3470.876960][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3470.876960][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3470.876960][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3470.876960][ T253] addrconf_dad_begin+0x310/0x670 [ 3470.876960][ T253] addrconf_dad_work+0x10b/0xab0 [ 3470.876960][ T253] process_one_work+0x84d/0x18a0 [ 3470.876960][ T253] worker_thread+0x587/0xd30 [ 3470.876960][ T253] kthread+0x28a/0x350 [ 3470.876960][ T253] ret_from_fork+0x31/0x70 [ 3470.876960][ T253] ret_from_fork_asm+0x1a/0x30 [ 3470.876960][ T253] [ 3470.879133][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3470.879133][ T253] netdev_get_by_index+0x5e/0x80 [ 3470.879133][ T253] fib6_nh_init+0x3d8/0x1580 [ 3470.879133][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3470.879133][ T253] ip6_route_add+0x1c/0x140 [ 3470.879133][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3470.879133][ T253] inet6_addr_add+0x4f8/0xa40 [ 3470.879133][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3470.879133][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3470.879133][ T253] netlink_rcv_skb+0x130/0x360 [ 3470.879133][ T253] netlink_unicast+0x449/0x710 [ 3470.879133][ T253] netlink_sendmsg+0x723/0xbe0 [ 3470.879133][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3470.879133][ T253] ___sys_sendmsg+0xee/0x170 [ 3470.879133][ T253] __sys_sendmsg+0xcd/0x170 [ 3470.879133][ T253] do_syscall_64+0xc6/0x1e0 [ 3470.879133][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3470.879133][ T253] [ 3470.881375][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3470.881375][ T253] netdev_get_by_index+0x5e/0x80 [ 3470.881375][ T253] fib6_nh_init+0x3d8/0x1580 [ 3470.881375][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3470.881375][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3470.881375][ T253] ipv6_add_addr+0x411/0x2000 [ 3470.881375][ T253] inet6_addr_add+0x30e/0xa40 [ 3470.881375][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3470.881375][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3470.881375][ T253] netlink_rcv_skb+0x130/0x360 [ 3470.881375][ T253] netlink_unicast+0x449/0x710 [ 3470.881375][ T253] netlink_sendmsg+0x723/0xbe0 [ 3470.881375][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3470.881375][ T253] ___sys_sendmsg+0xee/0x170 [ 3470.881375][ T253] __sys_sendmsg+0xcd/0x170 [ 3470.881375][ T253] do_syscall_64+0xc6/0x1e0 [ 3470.881375][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3470.881375][ T253] [ 3470.883626][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3470.883626][ T253] netdev_get_by_index+0x5e/0x80 [ 3470.883626][ T253] fib6_nh_init+0x3d8/0x1580 [ 3470.883626][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3470.883626][ T253] ip6_route_add+0x1c/0x140 [ 3470.883626][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3470.883626][ T253] addrconf_add_dev+0xe2/0x170 [ 3470.883626][ T253] inet6_addr_add+0x12f/0xa40 [ 3470.883626][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3470.883626][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3470.883626][ T253] netlink_rcv_skb+0x130/0x360 [ 3470.883626][ T253] netlink_unicast+0x449/0x710 [ 3470.883626][ T253] netlink_sendmsg+0x723/0xbe0 [ 3470.883626][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3470.883626][ T253] ___sys_sendmsg+0xee/0x170 [ 3470.883626][ T253] __sys_sendmsg+0xcd/0x170 [ 3470.883626][ T253] do_syscall_64+0xc6/0x1e0 [ 3470.883626][ T253] [ 3470.885829][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3470.885829][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3470.885829][ T253] ipv6_find_idev+0x102/0x170 [ 3470.885829][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3470.885829][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3470.885829][ T253] netlink_rcv_skb+0x130/0x360 [ 3470.885829][ T253] netlink_unicast+0x449/0x710 [ 3470.885829][ T253] netlink_sendmsg+0x723/0xbe0 [ 3470.885829][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3470.885829][ T253] ___sys_sendmsg+0xee/0x170 [ 3470.885829][ T253] __sys_sendmsg+0xcd/0x170 [ 3470.885829][ T253] do_syscall_64+0xc6/0x1e0 [ 3470.885829][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3470.885829][ T253] [ 3470.887554][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3470.887554][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3470.887554][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3470.887554][ T253] ipv6_find_idev+0x102/0x170 [ 3470.887554][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3470.887554][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3470.887554][ T253] netlink_rcv_skb+0x130/0x360 [ 3470.887554][ T253] netlink_unicast+0x449/0x710 [ 3470.887554][ T253] netlink_sendmsg+0x723/0xbe0 [ 3470.887554][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3470.887554][ T253] ___sys_sendmsg+0xee/0x170 [ 3470.887554][ T253] __sys_sendmsg+0xcd/0x170 [ 3470.887554][ T253] do_syscall_64+0xc6/0x1e0 [ 3470.887554][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3470.887554][ T253] [ 3481.122308][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3481.122715][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3481.122715][ T253] dst_init+0x84/0x4a0 [ 3481.122715][ T253] dst_alloc+0x97/0x150 [ 3481.122715][ T253] ip6_dst_alloc+0x23/0x90 [ 3481.122715][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3481.122715][ T253] ip6_pol_route+0x56f/0x840 [ 3481.122715][ T253] fib6_rule_lookup+0x334/0x630 [ 3481.122715][ T253] ip6_route_output_flags+0x259/0x480 [ 3481.122715][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3481.122715][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3481.122715][ T253] netlink_rcv_skb+0x130/0x360 [ 3481.122715][ T253] netlink_unicast+0x449/0x710 [ 3481.122715][ T253] netlink_sendmsg+0x723/0xbe0 [ 3481.122715][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3481.122715][ T253] ___sys_sendmsg+0xee/0x170 [ 3481.122715][ T253] __sys_sendmsg+0xcd/0x170 [ 3481.122715][ T253] do_syscall_64+0xc6/0x1e0 [ 3481.122715][ T253] [ 3481.124930][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3481.124930][ T253] netdev_get_by_index+0x5e/0x80 [ 3481.124930][ T253] fib6_nh_init+0x3d8/0x1580 [ 3481.124930][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3481.124930][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3481.124930][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3481.124930][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3481.124930][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3481.124930][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3481.124930][ T253] addrconf_dad_begin+0x310/0x670 [ 3481.124930][ T253] addrconf_dad_work+0x10b/0xab0 [ 3481.124930][ T253] process_one_work+0x84d/0x18a0 [ 3481.124930][ T253] worker_thread+0x587/0xd30 [ 3481.124930][ T253] kthread+0x28a/0x350 [ 3481.124930][ T253] ret_from_fork+0x31/0x70 [ 3481.124930][ T253] ret_from_fork_asm+0x1a/0x30 [ 3481.124930][ T253] [ 3481.127070][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3481.127070][ T253] netdev_get_by_index+0x5e/0x80 [ 3481.127070][ T253] fib6_nh_init+0x3d8/0x1580 [ 3481.127070][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3481.127070][ T253] ip6_route_add+0x1c/0x140 [ 3481.127070][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3481.127070][ T253] inet6_addr_add+0x4f8/0xa40 [ 3481.127070][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3481.127070][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3481.127070][ T253] netlink_rcv_skb+0x130/0x360 [ 3481.127070][ T253] netlink_unicast+0x449/0x710 [ 3481.127070][ T253] netlink_sendmsg+0x723/0xbe0 [ 3481.127070][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3481.127070][ T253] ___sys_sendmsg+0xee/0x170 [ 3481.127070][ T253] __sys_sendmsg+0xcd/0x170 [ 3481.127070][ T253] do_syscall_64+0xc6/0x1e0 [ 3481.127070][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3481.127070][ T253] [ 3481.129306][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3481.129306][ T253] netdev_get_by_index+0x5e/0x80 [ 3481.129306][ T253] fib6_nh_init+0x3d8/0x1580 [ 3481.129306][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3481.129306][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3481.129306][ T253] ipv6_add_addr+0x411/0x2000 [ 3481.129306][ T253] inet6_addr_add+0x30e/0xa40 [ 3481.129306][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3481.129306][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3481.129306][ T253] netlink_rcv_skb+0x130/0x360 [ 3481.129306][ T253] netlink_unicast+0x449/0x710 [ 3481.129306][ T253] netlink_sendmsg+0x723/0xbe0 [ 3481.129306][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3481.129306][ T253] ___sys_sendmsg+0xee/0x170 [ 3481.129306][ T253] __sys_sendmsg+0xcd/0x170 [ 3481.129306][ T253] do_syscall_64+0xc6/0x1e0 [ 3481.129306][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3481.129306][ T253] [ 3481.131557][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3481.131557][ T253] netdev_get_by_index+0x5e/0x80 [ 3481.131557][ T253] fib6_nh_init+0x3d8/0x1580 [ 3481.131557][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3481.131557][ T253] ip6_route_add+0x1c/0x140 [ 3481.131557][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3481.131557][ T253] addrconf_add_dev+0xe2/0x170 [ 3481.131557][ T253] inet6_addr_add+0x12f/0xa40 [ 3481.131557][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3481.131557][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3481.131557][ T253] netlink_rcv_skb+0x130/0x360 [ 3481.131557][ T253] netlink_unicast+0x449/0x710 [ 3481.131557][ T253] netlink_sendmsg+0x723/0xbe0 [ 3481.131557][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3481.131557][ T253] ___sys_sendmsg+0xee/0x170 [ 3481.131557][ T253] __sys_sendmsg+0xcd/0x170 [ 3481.131557][ T253] do_syscall_64+0xc6/0x1e0 [ 3481.131557][ T253] [ 3481.133762][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3481.133762][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3481.133762][ T253] ipv6_find_idev+0x102/0x170 [ 3481.133762][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3481.133762][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3481.133762][ T253] netlink_rcv_skb+0x130/0x360 [ 3481.133762][ T253] netlink_unicast+0x449/0x710 [ 3481.133762][ T253] netlink_sendmsg+0x723/0xbe0 [ 3481.133762][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3481.133762][ T253] ___sys_sendmsg+0xee/0x170 [ 3481.133762][ T253] __sys_sendmsg+0xcd/0x170 [ 3481.133762][ T253] do_syscall_64+0xc6/0x1e0 [ 3481.133762][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3481.133762][ T253] [ 3481.135484][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3481.135484][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3481.135484][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3481.135484][ T253] ipv6_find_idev+0x102/0x170 [ 3481.135484][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3481.135484][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3481.135484][ T253] netlink_rcv_skb+0x130/0x360 [ 3481.135484][ T253] netlink_unicast+0x449/0x710 [ 3481.135484][ T253] netlink_sendmsg+0x723/0xbe0 [ 3481.135484][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3481.135484][ T253] ___sys_sendmsg+0xee/0x170 [ 3481.135484][ T253] __sys_sendmsg+0xcd/0x170 [ 3481.135484][ T253] do_syscall_64+0xc6/0x1e0 [ 3481.135484][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3481.135484][ T253] [ 3491.378304][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3491.378713][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3491.378713][ T253] dst_init+0x84/0x4a0 [ 3491.378713][ T253] dst_alloc+0x97/0x150 [ 3491.378713][ T253] ip6_dst_alloc+0x23/0x90 [ 3491.378713][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3491.378713][ T253] ip6_pol_route+0x56f/0x840 [ 3491.378713][ T253] fib6_rule_lookup+0x334/0x630 [ 3491.378713][ T253] ip6_route_output_flags+0x259/0x480 [ 3491.378713][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3491.378713][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3491.378713][ T253] netlink_rcv_skb+0x130/0x360 [ 3491.378713][ T253] netlink_unicast+0x449/0x710 [ 3491.378713][ T253] netlink_sendmsg+0x723/0xbe0 [ 3491.378713][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3491.378713][ T253] ___sys_sendmsg+0xee/0x170 [ 3491.378713][ T253] __sys_sendmsg+0xcd/0x170 [ 3491.378713][ T253] do_syscall_64+0xc6/0x1e0 [ 3491.378713][ T253] [ 3491.380902][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3491.380902][ T253] netdev_get_by_index+0x5e/0x80 [ 3491.380902][ T253] fib6_nh_init+0x3d8/0x1580 [ 3491.380902][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3491.380902][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3491.380902][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3491.380902][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3491.380902][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3491.380902][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3491.380902][ T253] addrconf_dad_begin+0x310/0x670 [ 3491.380902][ T253] addrconf_dad_work+0x10b/0xab0 [ 3491.380902][ T253] process_one_work+0x84d/0x18a0 [ 3491.380902][ T253] worker_thread+0x587/0xd30 [ 3491.380902][ T253] kthread+0x28a/0x350 [ 3491.380902][ T253] ret_from_fork+0x31/0x70 [ 3491.380902][ T253] ret_from_fork_asm+0x1a/0x30 [ 3491.380902][ T253] [ 3491.383056][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3491.383056][ T253] netdev_get_by_index+0x5e/0x80 [ 3491.383056][ T253] fib6_nh_init+0x3d8/0x1580 [ 3491.383056][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3491.383056][ T253] ip6_route_add+0x1c/0x140 [ 3491.383056][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3491.383056][ T253] inet6_addr_add+0x4f8/0xa40 [ 3491.383056][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3491.383056][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3491.383056][ T253] netlink_rcv_skb+0x130/0x360 [ 3491.383056][ T253] netlink_unicast+0x449/0x710 [ 3491.383056][ T253] netlink_sendmsg+0x723/0xbe0 [ 3491.383056][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3491.383056][ T253] ___sys_sendmsg+0xee/0x170 [ 3491.383056][ T253] __sys_sendmsg+0xcd/0x170 [ 3491.383056][ T253] do_syscall_64+0xc6/0x1e0 [ 3491.383056][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3491.383056][ T253] [ 3491.385291][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3491.385291][ T253] netdev_get_by_index+0x5e/0x80 [ 3491.385291][ T253] fib6_nh_init+0x3d8/0x1580 [ 3491.385291][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3491.385291][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3491.385291][ T253] ipv6_add_addr+0x411/0x2000 [ 3491.385291][ T253] inet6_addr_add+0x30e/0xa40 [ 3491.385291][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3491.385291][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3491.385291][ T253] netlink_rcv_skb+0x130/0x360 [ 3491.385291][ T253] netlink_unicast+0x449/0x710 [ 3491.385291][ T253] netlink_sendmsg+0x723/0xbe0 [ 3491.385291][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3491.385291][ T253] ___sys_sendmsg+0xee/0x170 [ 3491.385291][ T253] __sys_sendmsg+0xcd/0x170 [ 3491.385291][ T253] do_syscall_64+0xc6/0x1e0 [ 3491.385291][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3491.385291][ T253] [ 3491.387526][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3491.387526][ T253] netdev_get_by_index+0x5e/0x80 [ 3491.387526][ T253] fib6_nh_init+0x3d8/0x1580 [ 3491.387526][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3491.387526][ T253] ip6_route_add+0x1c/0x140 [ 3491.387526][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3491.387526][ T253] addrconf_add_dev+0xe2/0x170 [ 3491.387526][ T253] inet6_addr_add+0x12f/0xa40 [ 3491.387526][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3491.387526][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3491.387526][ T253] netlink_rcv_skb+0x130/0x360 [ 3491.387526][ T253] netlink_unicast+0x449/0x710 [ 3491.387526][ T253] netlink_sendmsg+0x723/0xbe0 [ 3491.387526][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3491.387526][ T253] ___sys_sendmsg+0xee/0x170 [ 3491.387526][ T253] __sys_sendmsg+0xcd/0x170 [ 3491.387526][ T253] do_syscall_64+0xc6/0x1e0 [ 3491.387526][ T253] [ 3491.389744][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3491.389744][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3491.389744][ T253] ipv6_find_idev+0x102/0x170 [ 3491.389744][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3491.389744][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3491.389744][ T253] netlink_rcv_skb+0x130/0x360 [ 3491.389744][ T253] netlink_unicast+0x449/0x710 [ 3491.389744][ T253] netlink_sendmsg+0x723/0xbe0 [ 3491.389744][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3491.389744][ T253] ___sys_sendmsg+0xee/0x170 [ 3491.389744][ T253] __sys_sendmsg+0xcd/0x170 [ 3491.389744][ T253] do_syscall_64+0xc6/0x1e0 [ 3491.389744][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3491.389744][ T253] [ 3491.391464][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3491.391464][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3491.391464][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3491.391464][ T253] ipv6_find_idev+0x102/0x170 [ 3491.391464][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3491.391464][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3491.391464][ T253] netlink_rcv_skb+0x130/0x360 [ 3491.391464][ T253] netlink_unicast+0x449/0x710 [ 3491.391464][ T253] netlink_sendmsg+0x723/0xbe0 [ 3491.391464][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3491.391464][ T253] ___sys_sendmsg+0xee/0x170 [ 3491.391464][ T253] __sys_sendmsg+0xcd/0x170 [ 3491.391464][ T253] do_syscall_64+0xc6/0x1e0 [ 3491.391464][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3491.391464][ T253] [ 3501.634242][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3501.634646][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3501.634646][ T253] dst_init+0x84/0x4a0 [ 3501.634646][ T253] dst_alloc+0x97/0x150 [ 3501.634646][ T253] ip6_dst_alloc+0x23/0x90 [ 3501.634646][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3501.634646][ T253] ip6_pol_route+0x56f/0x840 [ 3501.634646][ T253] fib6_rule_lookup+0x334/0x630 [ 3501.634646][ T253] ip6_route_output_flags+0x259/0x480 [ 3501.634646][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3501.634646][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3501.634646][ T253] netlink_rcv_skb+0x130/0x360 [ 3501.634646][ T253] netlink_unicast+0x449/0x710 [ 3501.634646][ T253] netlink_sendmsg+0x723/0xbe0 [ 3501.634646][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3501.634646][ T253] ___sys_sendmsg+0xee/0x170 [ 3501.634646][ T253] __sys_sendmsg+0xcd/0x170 [ 3501.634646][ T253] do_syscall_64+0xc6/0x1e0 [ 3501.634646][ T253] [ 3501.636877][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3501.636877][ T253] netdev_get_by_index+0x5e/0x80 [ 3501.636877][ T253] fib6_nh_init+0x3d8/0x1580 [ 3501.636877][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3501.636877][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3501.636877][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3501.636877][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3501.636877][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3501.636877][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3501.636877][ T253] addrconf_dad_begin+0x310/0x670 [ 3501.636877][ T253] addrconf_dad_work+0x10b/0xab0 [ 3501.636877][ T253] process_one_work+0x84d/0x18a0 [ 3501.636877][ T253] worker_thread+0x587/0xd30 [ 3501.636877][ T253] kthread+0x28a/0x350 [ 3501.636877][ T253] ret_from_fork+0x31/0x70 [ 3501.636877][ T253] ret_from_fork_asm+0x1a/0x30 [ 3501.636877][ T253] [ 3501.639542][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3501.639542][ T253] netdev_get_by_index+0x5e/0x80 [ 3501.639542][ T253] fib6_nh_init+0x3d8/0x1580 [ 3501.639542][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3501.639542][ T253] ip6_route_add+0x1c/0x140 [ 3501.639542][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3501.639542][ T253] inet6_addr_add+0x4f8/0xa40 [ 3501.639542][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3501.639542][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3501.639542][ T253] netlink_rcv_skb+0x130/0x360 [ 3501.639542][ T253] netlink_unicast+0x449/0x710 [ 3501.639542][ T253] netlink_sendmsg+0x723/0xbe0 [ 3501.639542][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3501.639542][ T253] ___sys_sendmsg+0xee/0x170 [ 3501.639542][ T253] __sys_sendmsg+0xcd/0x170 [ 3501.639542][ T253] do_syscall_64+0xc6/0x1e0 [ 3501.639542][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3501.639542][ T253] [ 3501.641781][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3501.641781][ T253] netdev_get_by_index+0x5e/0x80 [ 3501.641781][ T253] fib6_nh_init+0x3d8/0x1580 [ 3501.641781][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3501.641781][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3501.641781][ T253] ipv6_add_addr+0x411/0x2000 [ 3501.641781][ T253] inet6_addr_add+0x30e/0xa40 [ 3501.641781][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3501.641781][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3501.641781][ T253] netlink_rcv_skb+0x130/0x360 [ 3501.641781][ T253] netlink_unicast+0x449/0x710 [ 3501.641781][ T253] netlink_sendmsg+0x723/0xbe0 [ 3501.641781][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3501.641781][ T253] ___sys_sendmsg+0xee/0x170 [ 3501.641781][ T253] __sys_sendmsg+0xcd/0x170 [ 3501.641781][ T253] do_syscall_64+0xc6/0x1e0 [ 3501.641781][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3501.641781][ T253] [ 3501.644054][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3501.644054][ T253] netdev_get_by_index+0x5e/0x80 [ 3501.644054][ T253] fib6_nh_init+0x3d8/0x1580 [ 3501.644054][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3501.644054][ T253] ip6_route_add+0x1c/0x140 [ 3501.644054][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3501.644054][ T253] addrconf_add_dev+0xe2/0x170 [ 3501.644054][ T253] inet6_addr_add+0x12f/0xa40 [ 3501.644054][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3501.644054][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3501.644054][ T253] netlink_rcv_skb+0x130/0x360 [ 3501.644054][ T253] netlink_unicast+0x449/0x710 [ 3501.644054][ T253] netlink_sendmsg+0x723/0xbe0 [ 3501.644054][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3501.644054][ T253] ___sys_sendmsg+0xee/0x170 [ 3501.644054][ T253] __sys_sendmsg+0xcd/0x170 [ 3501.644054][ T253] do_syscall_64+0xc6/0x1e0 [ 3501.644054][ T253] [ 3501.646255][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3501.646255][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3501.646255][ T253] ipv6_find_idev+0x102/0x170 [ 3501.646255][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3501.646255][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3501.646255][ T253] netlink_rcv_skb+0x130/0x360 [ 3501.646255][ T253] netlink_unicast+0x449/0x710 [ 3501.646255][ T253] netlink_sendmsg+0x723/0xbe0 [ 3501.646255][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3501.646255][ T253] ___sys_sendmsg+0xee/0x170 [ 3501.646255][ T253] __sys_sendmsg+0xcd/0x170 [ 3501.646255][ T253] do_syscall_64+0xc6/0x1e0 [ 3501.646255][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3501.646255][ T253] [ 3501.647983][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3501.647983][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3501.647983][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3501.647983][ T253] ipv6_find_idev+0x102/0x170 [ 3501.647983][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3501.647983][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3501.647983][ T253] netlink_rcv_skb+0x130/0x360 [ 3501.647983][ T253] netlink_unicast+0x449/0x710 [ 3501.647983][ T253] netlink_sendmsg+0x723/0xbe0 [ 3501.647983][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3501.647983][ T253] ___sys_sendmsg+0xee/0x170 [ 3501.647983][ T253] __sys_sendmsg+0xcd/0x170 [ 3501.647983][ T253] do_syscall_64+0xc6/0x1e0 [ 3501.647983][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3501.647983][ T253] [ 3511.890300][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3511.890772][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3511.890772][ T253] dst_init+0x84/0x4a0 [ 3511.890772][ T253] dst_alloc+0x97/0x150 [ 3511.890772][ T253] ip6_dst_alloc+0x23/0x90 [ 3511.890772][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3511.890772][ T253] ip6_pol_route+0x56f/0x840 [ 3511.890772][ T253] fib6_rule_lookup+0x334/0x630 [ 3511.890772][ T253] ip6_route_output_flags+0x259/0x480 [ 3511.890772][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3511.890772][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3511.890772][ T253] netlink_rcv_skb+0x130/0x360 [ 3511.890772][ T253] netlink_unicast+0x449/0x710 [ 3511.890772][ T253] netlink_sendmsg+0x723/0xbe0 [ 3511.890772][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3511.890772][ T253] ___sys_sendmsg+0xee/0x170 [ 3511.890772][ T253] __sys_sendmsg+0xcd/0x170 [ 3511.890772][ T253] do_syscall_64+0xc6/0x1e0 [ 3511.890772][ T253] [ 3511.892985][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3511.892985][ T253] netdev_get_by_index+0x5e/0x80 [ 3511.892985][ T253] fib6_nh_init+0x3d8/0x1580 [ 3511.892985][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3511.892985][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3511.892985][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3511.892985][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3511.892985][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3511.892985][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3511.892985][ T253] addrconf_dad_begin+0x310/0x670 [ 3511.892985][ T253] addrconf_dad_work+0x10b/0xab0 [ 3511.892985][ T253] process_one_work+0x84d/0x18a0 [ 3511.892985][ T253] worker_thread+0x587/0xd30 [ 3511.892985][ T253] kthread+0x28a/0x350 [ 3511.892985][ T253] ret_from_fork+0x31/0x70 [ 3511.892985][ T253] ret_from_fork_asm+0x1a/0x30 [ 3511.892985][ T253] [ 3511.895144][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3511.895144][ T253] netdev_get_by_index+0x5e/0x80 [ 3511.895144][ T253] fib6_nh_init+0x3d8/0x1580 [ 3511.895144][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3511.895144][ T253] ip6_route_add+0x1c/0x140 [ 3511.895144][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3511.895144][ T253] inet6_addr_add+0x4f8/0xa40 [ 3511.895144][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3511.895144][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3511.895144][ T253] netlink_rcv_skb+0x130/0x360 [ 3511.895144][ T253] netlink_unicast+0x449/0x710 [ 3511.895144][ T253] netlink_sendmsg+0x723/0xbe0 [ 3511.895144][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3511.895144][ T253] ___sys_sendmsg+0xee/0x170 [ 3511.895144][ T253] __sys_sendmsg+0xcd/0x170 [ 3511.895144][ T253] do_syscall_64+0xc6/0x1e0 [ 3511.895144][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3511.895144][ T253] [ 3511.897400][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3511.897400][ T253] netdev_get_by_index+0x5e/0x80 [ 3511.897400][ T253] fib6_nh_init+0x3d8/0x1580 [ 3511.897400][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3511.897400][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3511.897400][ T253] ipv6_add_addr+0x411/0x2000 [ 3511.897400][ T253] inet6_addr_add+0x30e/0xa40 [ 3511.897400][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3511.897400][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3511.897400][ T253] netlink_rcv_skb+0x130/0x360 [ 3511.897400][ T253] netlink_unicast+0x449/0x710 [ 3511.897400][ T253] netlink_sendmsg+0x723/0xbe0 [ 3511.897400][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3511.897400][ T253] ___sys_sendmsg+0xee/0x170 [ 3511.897400][ T253] __sys_sendmsg+0xcd/0x170 [ 3511.897400][ T253] do_syscall_64+0xc6/0x1e0 [ 3511.897400][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3511.897400][ T253] [ 3511.899643][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3511.899643][ T253] netdev_get_by_index+0x5e/0x80 [ 3511.899643][ T253] fib6_nh_init+0x3d8/0x1580 [ 3511.899643][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3511.899643][ T253] ip6_route_add+0x1c/0x140 [ 3511.899643][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3511.899643][ T253] addrconf_add_dev+0xe2/0x170 [ 3511.899643][ T253] inet6_addr_add+0x12f/0xa40 [ 3511.899643][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3511.899643][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3511.899643][ T253] netlink_rcv_skb+0x130/0x360 [ 3511.899643][ T253] netlink_unicast+0x449/0x710 [ 3511.899643][ T253] netlink_sendmsg+0x723/0xbe0 [ 3511.899643][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3511.899643][ T253] ___sys_sendmsg+0xee/0x170 [ 3511.899643][ T253] __sys_sendmsg+0xcd/0x170 [ 3511.899643][ T253] do_syscall_64+0xc6/0x1e0 [ 3511.899643][ T253] [ 3511.901852][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3511.901852][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3511.901852][ T253] ipv6_find_idev+0x102/0x170 [ 3511.901852][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3511.901852][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3511.901852][ T253] netlink_rcv_skb+0x130/0x360 [ 3511.901852][ T253] netlink_unicast+0x449/0x710 [ 3511.901852][ T253] netlink_sendmsg+0x723/0xbe0 [ 3511.901852][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3511.901852][ T253] ___sys_sendmsg+0xee/0x170 [ 3511.901852][ T253] __sys_sendmsg+0xcd/0x170 [ 3511.901852][ T253] do_syscall_64+0xc6/0x1e0 [ 3511.901852][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3511.901852][ T253] [ 3511.903578][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3511.903578][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3511.903578][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3511.903578][ T253] ipv6_find_idev+0x102/0x170 [ 3511.903578][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3511.903578][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3511.903578][ T253] netlink_rcv_skb+0x130/0x360 [ 3511.903578][ T253] netlink_unicast+0x449/0x710 [ 3511.903578][ T253] netlink_sendmsg+0x723/0xbe0 [ 3511.903578][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3511.903578][ T253] ___sys_sendmsg+0xee/0x170 [ 3511.903578][ T253] __sys_sendmsg+0xcd/0x170 [ 3511.903578][ T253] do_syscall_64+0xc6/0x1e0 [ 3511.903578][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3511.903578][ T253] [ 3521.970306][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3521.970778][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3521.970778][ T253] dst_init+0x84/0x4a0 [ 3521.970778][ T253] dst_alloc+0x97/0x150 [ 3521.970778][ T253] ip6_dst_alloc+0x23/0x90 [ 3521.970778][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3521.970778][ T253] ip6_pol_route+0x56f/0x840 [ 3521.970778][ T253] fib6_rule_lookup+0x334/0x630 [ 3521.970778][ T253] ip6_route_output_flags+0x259/0x480 [ 3521.970778][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3521.970778][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3521.970778][ T253] netlink_rcv_skb+0x130/0x360 [ 3521.970778][ T253] netlink_unicast+0x449/0x710 [ 3521.970778][ T253] netlink_sendmsg+0x723/0xbe0 [ 3521.970778][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3521.970778][ T253] ___sys_sendmsg+0xee/0x170 [ 3521.970778][ T253] __sys_sendmsg+0xcd/0x170 [ 3521.970778][ T253] do_syscall_64+0xc6/0x1e0 [ 3521.970778][ T253] [ 3521.972988][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3521.972988][ T253] netdev_get_by_index+0x5e/0x80 [ 3521.972988][ T253] fib6_nh_init+0x3d8/0x1580 [ 3521.972988][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3521.972988][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3521.972988][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3521.972988][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3521.972988][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3521.972988][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3521.972988][ T253] addrconf_dad_begin+0x310/0x670 [ 3521.972988][ T253] addrconf_dad_work+0x10b/0xab0 [ 3521.972988][ T253] process_one_work+0x84d/0x18a0 [ 3521.972988][ T253] worker_thread+0x587/0xd30 [ 3521.972988][ T253] kthread+0x28a/0x350 [ 3521.972988][ T253] ret_from_fork+0x31/0x70 [ 3521.972988][ T253] ret_from_fork_asm+0x1a/0x30 [ 3521.972988][ T253] [ 3521.975147][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3521.975147][ T253] netdev_get_by_index+0x5e/0x80 [ 3521.975147][ T253] fib6_nh_init+0x3d8/0x1580 [ 3521.975147][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3521.975147][ T253] ip6_route_add+0x1c/0x140 [ 3521.975147][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3521.975147][ T253] inet6_addr_add+0x4f8/0xa40 [ 3521.975147][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3521.975147][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3521.975147][ T253] netlink_rcv_skb+0x130/0x360 [ 3521.975147][ T253] netlink_unicast+0x449/0x710 [ 3521.975147][ T253] netlink_sendmsg+0x723/0xbe0 [ 3521.975147][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3521.975147][ T253] ___sys_sendmsg+0xee/0x170 [ 3521.975147][ T253] __sys_sendmsg+0xcd/0x170 [ 3521.975147][ T253] do_syscall_64+0xc6/0x1e0 [ 3521.975147][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3521.975147][ T253] [ 3521.977408][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3521.977408][ T253] netdev_get_by_index+0x5e/0x80 [ 3521.977408][ T253] fib6_nh_init+0x3d8/0x1580 [ 3521.977408][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3521.977408][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3521.977408][ T253] ipv6_add_addr+0x411/0x2000 [ 3521.977408][ T253] inet6_addr_add+0x30e/0xa40 [ 3521.977408][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3521.977408][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3521.977408][ T253] netlink_rcv_skb+0x130/0x360 [ 3521.977408][ T253] netlink_unicast+0x449/0x710 [ 3521.977408][ T253] netlink_sendmsg+0x723/0xbe0 [ 3521.977408][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3521.977408][ T253] ___sys_sendmsg+0xee/0x170 [ 3521.977408][ T253] __sys_sendmsg+0xcd/0x170 [ 3521.977408][ T253] do_syscall_64+0xc6/0x1e0 [ 3521.977408][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3521.977408][ T253] [ 3521.979645][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3521.979645][ T253] netdev_get_by_index+0x5e/0x80 [ 3521.979645][ T253] fib6_nh_init+0x3d8/0x1580 [ 3521.979645][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3521.979645][ T253] ip6_route_add+0x1c/0x140 [ 3521.979645][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3521.979645][ T253] addrconf_add_dev+0xe2/0x170 [ 3521.979645][ T253] inet6_addr_add+0x12f/0xa40 [ 3521.979645][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3521.979645][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3521.979645][ T253] netlink_rcv_skb+0x130/0x360 [ 3521.979645][ T253] netlink_unicast+0x449/0x710 [ 3521.979645][ T253] netlink_sendmsg+0x723/0xbe0 [ 3521.979645][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3521.979645][ T253] ___sys_sendmsg+0xee/0x170 [ 3521.979645][ T253] __sys_sendmsg+0xcd/0x170 [ 3521.979645][ T253] do_syscall_64+0xc6/0x1e0 [ 3521.979645][ T253] [ 3521.981838][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3521.981838][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3521.981838][ T253] ipv6_find_idev+0x102/0x170 [ 3521.981838][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3521.981838][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3521.981838][ T253] netlink_rcv_skb+0x130/0x360 [ 3521.981838][ T253] netlink_unicast+0x449/0x710 [ 3521.981838][ T253] netlink_sendmsg+0x723/0xbe0 [ 3521.981838][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3521.981838][ T253] ___sys_sendmsg+0xee/0x170 [ 3521.981838][ T253] __sys_sendmsg+0xcd/0x170 [ 3521.981838][ T253] do_syscall_64+0xc6/0x1e0 [ 3521.981838][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3521.981838][ T253] [ 3521.983581][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3521.983581][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3521.983581][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3521.983581][ T253] ipv6_find_idev+0x102/0x170 [ 3521.983581][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3521.983581][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3521.983581][ T253] netlink_rcv_skb+0x130/0x360 [ 3521.983581][ T253] netlink_unicast+0x449/0x710 [ 3521.983581][ T253] netlink_sendmsg+0x723/0xbe0 [ 3521.983581][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3521.983581][ T253] ___sys_sendmsg+0xee/0x170 [ 3521.983581][ T253] __sys_sendmsg+0xcd/0x170 [ 3521.983581][ T253] do_syscall_64+0xc6/0x1e0 [ 3521.983581][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3521.983581][ T253] [ 3532.226355][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3532.226836][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3532.226836][ T253] dst_init+0x84/0x4a0 [ 3532.226836][ T253] dst_alloc+0x97/0x150 [ 3532.226836][ T253] ip6_dst_alloc+0x23/0x90 [ 3532.226836][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3532.226836][ T253] ip6_pol_route+0x56f/0x840 [ 3532.226836][ T253] fib6_rule_lookup+0x334/0x630 [ 3532.226836][ T253] ip6_route_output_flags+0x259/0x480 [ 3532.226836][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3532.226836][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3532.226836][ T253] netlink_rcv_skb+0x130/0x360 [ 3532.226836][ T253] netlink_unicast+0x449/0x710 [ 3532.226836][ T253] netlink_sendmsg+0x723/0xbe0 [ 3532.226836][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3532.226836][ T253] ___sys_sendmsg+0xee/0x170 [ 3532.226836][ T253] __sys_sendmsg+0xcd/0x170 [ 3532.226836][ T253] do_syscall_64+0xc6/0x1e0 [ 3532.226836][ T253] [ 3532.229033][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3532.229033][ T253] netdev_get_by_index+0x5e/0x80 [ 3532.229033][ T253] fib6_nh_init+0x3d8/0x1580 [ 3532.229033][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3532.229033][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3532.229033][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3532.229033][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3532.229033][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3532.229033][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3532.229033][ T253] addrconf_dad_begin+0x310/0x670 [ 3532.229033][ T253] addrconf_dad_work+0x10b/0xab0 [ 3532.229033][ T253] process_one_work+0x84d/0x18a0 [ 3532.229033][ T253] worker_thread+0x587/0xd30 [ 3532.229033][ T253] kthread+0x28a/0x350 [ 3532.229033][ T253] ret_from_fork+0x31/0x70 [ 3532.229033][ T253] ret_from_fork_asm+0x1a/0x30 [ 3532.229033][ T253] [ 3532.231171][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3532.231171][ T253] netdev_get_by_index+0x5e/0x80 [ 3532.231171][ T253] fib6_nh_init+0x3d8/0x1580 [ 3532.231171][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3532.231171][ T253] ip6_route_add+0x1c/0x140 [ 3532.231171][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3532.231171][ T253] inet6_addr_add+0x4f8/0xa40 [ 3532.231171][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3532.231171][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3532.231171][ T253] netlink_rcv_skb+0x130/0x360 [ 3532.231171][ T253] netlink_unicast+0x449/0x710 [ 3532.231171][ T253] netlink_sendmsg+0x723/0xbe0 [ 3532.231171][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3532.231171][ T253] ___sys_sendmsg+0xee/0x170 [ 3532.231171][ T253] __sys_sendmsg+0xcd/0x170 [ 3532.231171][ T253] do_syscall_64+0xc6/0x1e0 [ 3532.231171][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3532.231171][ T253] [ 3532.233417][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3532.233417][ T253] netdev_get_by_index+0x5e/0x80 [ 3532.233417][ T253] fib6_nh_init+0x3d8/0x1580 [ 3532.233417][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3532.233417][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3532.233417][ T253] ipv6_add_addr+0x411/0x2000 [ 3532.233417][ T253] inet6_addr_add+0x30e/0xa40 [ 3532.233417][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3532.233417][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3532.233417][ T253] netlink_rcv_skb+0x130/0x360 [ 3532.233417][ T253] netlink_unicast+0x449/0x710 [ 3532.233417][ T253] netlink_sendmsg+0x723/0xbe0 [ 3532.233417][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3532.233417][ T253] ___sys_sendmsg+0xee/0x170 [ 3532.233417][ T253] __sys_sendmsg+0xcd/0x170 [ 3532.233417][ T253] do_syscall_64+0xc6/0x1e0 [ 3532.233417][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3532.233417][ T253] [ 3532.235649][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3532.235649][ T253] netdev_get_by_index+0x5e/0x80 [ 3532.235649][ T253] fib6_nh_init+0x3d8/0x1580 [ 3532.235649][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3532.235649][ T253] ip6_route_add+0x1c/0x140 [ 3532.235649][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3532.235649][ T253] addrconf_add_dev+0xe2/0x170 [ 3532.235649][ T253] inet6_addr_add+0x12f/0xa40 [ 3532.235649][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3532.235649][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3532.235649][ T253] netlink_rcv_skb+0x130/0x360 [ 3532.235649][ T253] netlink_unicast+0x449/0x710 [ 3532.235649][ T253] netlink_sendmsg+0x723/0xbe0 [ 3532.235649][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3532.235649][ T253] ___sys_sendmsg+0xee/0x170 [ 3532.235649][ T253] __sys_sendmsg+0xcd/0x170 [ 3532.235649][ T253] do_syscall_64+0xc6/0x1e0 [ 3532.235649][ T253] [ 3532.237846][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3532.237846][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3532.237846][ T253] ipv6_find_idev+0x102/0x170 [ 3532.237846][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3532.237846][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3532.237846][ T253] netlink_rcv_skb+0x130/0x360 [ 3532.237846][ T253] netlink_unicast+0x449/0x710 [ 3532.237846][ T253] netlink_sendmsg+0x723/0xbe0 [ 3532.237846][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3532.237846][ T253] ___sys_sendmsg+0xee/0x170 [ 3532.237846][ T253] __sys_sendmsg+0xcd/0x170 [ 3532.237846][ T253] do_syscall_64+0xc6/0x1e0 [ 3532.237846][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3532.237846][ T253] [ 3532.239569][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3532.239569][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3532.239569][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3532.239569][ T253] ipv6_find_idev+0x102/0x170 [ 3532.239569][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3532.239569][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3532.239569][ T253] netlink_rcv_skb+0x130/0x360 [ 3532.239569][ T253] netlink_unicast+0x449/0x710 [ 3532.239569][ T253] netlink_sendmsg+0x723/0xbe0 [ 3532.239569][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3532.239569][ T253] ___sys_sendmsg+0xee/0x170 [ 3532.239569][ T253] __sys_sendmsg+0xcd/0x170 [ 3532.239569][ T253] do_syscall_64+0xc6/0x1e0 [ 3532.239569][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3532.239569][ T253] [ 3542.378297][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3542.378760][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3542.378760][ T253] dst_init+0x84/0x4a0 [ 3542.378760][ T253] dst_alloc+0x97/0x150 [ 3542.378760][ T253] ip6_dst_alloc+0x23/0x90 [ 3542.378760][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3542.378760][ T253] ip6_pol_route+0x56f/0x840 [ 3542.378760][ T253] fib6_rule_lookup+0x334/0x630 [ 3542.378760][ T253] ip6_route_output_flags+0x259/0x480 [ 3542.378760][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3542.378760][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3542.378760][ T253] netlink_rcv_skb+0x130/0x360 [ 3542.378760][ T253] netlink_unicast+0x449/0x710 [ 3542.378760][ T253] netlink_sendmsg+0x723/0xbe0 [ 3542.378760][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3542.378760][ T253] ___sys_sendmsg+0xee/0x170 [ 3542.378760][ T253] __sys_sendmsg+0xcd/0x170 [ 3542.378760][ T253] do_syscall_64+0xc6/0x1e0 [ 3542.378760][ T253] [ 3542.380956][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3542.380956][ T253] netdev_get_by_index+0x5e/0x80 [ 3542.380956][ T253] fib6_nh_init+0x3d8/0x1580 [ 3542.380956][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3542.380956][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3542.380956][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3542.380956][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3542.380956][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3542.380956][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3542.380956][ T253] addrconf_dad_begin+0x310/0x670 [ 3542.380956][ T253] addrconf_dad_work+0x10b/0xab0 [ 3542.380956][ T253] process_one_work+0x84d/0x18a0 [ 3542.380956][ T253] worker_thread+0x587/0xd30 [ 3542.380956][ T253] kthread+0x28a/0x350 [ 3542.380956][ T253] ret_from_fork+0x31/0x70 [ 3542.380956][ T253] ret_from_fork_asm+0x1a/0x30 [ 3542.380956][ T253] [ 3542.383102][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3542.383102][ T253] netdev_get_by_index+0x5e/0x80 [ 3542.383102][ T253] fib6_nh_init+0x3d8/0x1580 [ 3542.383102][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3542.383102][ T253] ip6_route_add+0x1c/0x140 [ 3542.383102][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3542.383102][ T253] inet6_addr_add+0x4f8/0xa40 [ 3542.383102][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3542.383102][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3542.383102][ T253] netlink_rcv_skb+0x130/0x360 [ 3542.383102][ T253] netlink_unicast+0x449/0x710 [ 3542.383102][ T253] netlink_sendmsg+0x723/0xbe0 [ 3542.383102][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3542.383102][ T253] ___sys_sendmsg+0xee/0x170 [ 3542.383102][ T253] __sys_sendmsg+0xcd/0x170 [ 3542.383102][ T253] do_syscall_64+0xc6/0x1e0 [ 3542.383102][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3542.383102][ T253] [ 3542.385336][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3542.385336][ T253] netdev_get_by_index+0x5e/0x80 [ 3542.385336][ T253] fib6_nh_init+0x3d8/0x1580 [ 3542.385336][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3542.385336][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3542.385336][ T253] ipv6_add_addr+0x411/0x2000 [ 3542.385336][ T253] inet6_addr_add+0x30e/0xa40 [ 3542.385336][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3542.385336][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3542.385336][ T253] netlink_rcv_skb+0x130/0x360 [ 3542.385336][ T253] netlink_unicast+0x449/0x710 [ 3542.385336][ T253] netlink_sendmsg+0x723/0xbe0 [ 3542.385336][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3542.385336][ T253] ___sys_sendmsg+0xee/0x170 [ 3542.385336][ T253] __sys_sendmsg+0xcd/0x170 [ 3542.385336][ T253] do_syscall_64+0xc6/0x1e0 [ 3542.385336][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3542.385336][ T253] [ 3542.387578][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3542.387578][ T253] netdev_get_by_index+0x5e/0x80 [ 3542.387578][ T253] fib6_nh_init+0x3d8/0x1580 [ 3542.387578][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3542.387578][ T253] ip6_route_add+0x1c/0x140 [ 3542.387578][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3542.387578][ T253] addrconf_add_dev+0xe2/0x170 [ 3542.387578][ T253] inet6_addr_add+0x12f/0xa40 [ 3542.387578][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3542.387578][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3542.387578][ T253] netlink_rcv_skb+0x130/0x360 [ 3542.387578][ T253] netlink_unicast+0x449/0x710 [ 3542.387578][ T253] netlink_sendmsg+0x723/0xbe0 [ 3542.387578][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3542.387578][ T253] ___sys_sendmsg+0xee/0x170 [ 3542.387578][ T253] __sys_sendmsg+0xcd/0x170 [ 3542.387578][ T253] do_syscall_64+0xc6/0x1e0 [ 3542.387578][ T253] [ 3542.389772][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3542.389772][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3542.389772][ T253] ipv6_find_idev+0x102/0x170 [ 3542.389772][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3542.389772][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3542.389772][ T253] netlink_rcv_skb+0x130/0x360 [ 3542.389772][ T253] netlink_unicast+0x449/0x710 [ 3542.389772][ T253] netlink_sendmsg+0x723/0xbe0 [ 3542.389772][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3542.389772][ T253] ___sys_sendmsg+0xee/0x170 [ 3542.389772][ T253] __sys_sendmsg+0xcd/0x170 [ 3542.389772][ T253] do_syscall_64+0xc6/0x1e0 [ 3542.389772][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3542.389772][ T253] [ 3542.391498][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3542.391498][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3542.391498][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3542.391498][ T253] ipv6_find_idev+0x102/0x170 [ 3542.391498][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3542.391498][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3542.391498][ T253] netlink_rcv_skb+0x130/0x360 [ 3542.391498][ T253] netlink_unicast+0x449/0x710 [ 3542.391498][ T253] netlink_sendmsg+0x723/0xbe0 [ 3542.391498][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3542.391498][ T253] ___sys_sendmsg+0xee/0x170 [ 3542.391498][ T253] __sys_sendmsg+0xcd/0x170 [ 3542.391498][ T253] do_syscall_64+0xc6/0x1e0 [ 3542.391498][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3542.391498][ T253] [ 3552.634296][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3552.634772][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3552.634772][ T253] dst_init+0x84/0x4a0 [ 3552.634772][ T253] dst_alloc+0x97/0x150 [ 3552.634772][ T253] ip6_dst_alloc+0x23/0x90 [ 3552.634772][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3552.634772][ T253] ip6_pol_route+0x56f/0x840 [ 3552.634772][ T253] fib6_rule_lookup+0x334/0x630 [ 3552.634772][ T253] ip6_route_output_flags+0x259/0x480 [ 3552.634772][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3552.634772][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3552.634772][ T253] netlink_rcv_skb+0x130/0x360 [ 3552.634772][ T253] netlink_unicast+0x449/0x710 [ 3552.634772][ T253] netlink_sendmsg+0x723/0xbe0 [ 3552.634772][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3552.634772][ T253] ___sys_sendmsg+0xee/0x170 [ 3552.634772][ T253] __sys_sendmsg+0xcd/0x170 [ 3552.634772][ T253] do_syscall_64+0xc6/0x1e0 [ 3552.634772][ T253] [ 3552.636961][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3552.636961][ T253] netdev_get_by_index+0x5e/0x80 [ 3552.636961][ T253] fib6_nh_init+0x3d8/0x1580 [ 3552.636961][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3552.636961][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3552.636961][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3552.636961][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3552.636961][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3552.636961][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3552.636961][ T253] addrconf_dad_begin+0x310/0x670 [ 3552.636961][ T253] addrconf_dad_work+0x10b/0xab0 [ 3552.636961][ T253] process_one_work+0x84d/0x18a0 [ 3552.636961][ T253] worker_thread+0x587/0xd30 [ 3552.636961][ T253] kthread+0x28a/0x350 [ 3552.636961][ T253] ret_from_fork+0x31/0x70 [ 3552.636961][ T253] ret_from_fork_asm+0x1a/0x30 [ 3552.636961][ T253] [ 3552.639113][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3552.639113][ T253] netdev_get_by_index+0x5e/0x80 [ 3552.639113][ T253] fib6_nh_init+0x3d8/0x1580 [ 3552.639113][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3552.639113][ T253] ip6_route_add+0x1c/0x140 [ 3552.639113][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3552.639113][ T253] inet6_addr_add+0x4f8/0xa40 [ 3552.639113][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3552.639113][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3552.639113][ T253] netlink_rcv_skb+0x130/0x360 [ 3552.639113][ T253] netlink_unicast+0x449/0x710 [ 3552.639113][ T253] netlink_sendmsg+0x723/0xbe0 [ 3552.639113][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3552.639113][ T253] ___sys_sendmsg+0xee/0x170 [ 3552.639113][ T253] __sys_sendmsg+0xcd/0x170 [ 3552.639113][ T253] do_syscall_64+0xc6/0x1e0 [ 3552.639113][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3552.639113][ T253] [ 3552.641355][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3552.641355][ T253] netdev_get_by_index+0x5e/0x80 [ 3552.641355][ T253] fib6_nh_init+0x3d8/0x1580 [ 3552.641355][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3552.641355][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3552.641355][ T253] ipv6_add_addr+0x411/0x2000 [ 3552.641355][ T253] inet6_addr_add+0x30e/0xa40 [ 3552.641355][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3552.641355][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3552.641355][ T253] netlink_rcv_skb+0x130/0x360 [ 3552.641355][ T253] netlink_unicast+0x449/0x710 [ 3552.641355][ T253] netlink_sendmsg+0x723/0xbe0 [ 3552.641355][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3552.641355][ T253] ___sys_sendmsg+0xee/0x170 [ 3552.641355][ T253] __sys_sendmsg+0xcd/0x170 [ 3552.641355][ T253] do_syscall_64+0xc6/0x1e0 [ 3552.641355][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3552.641355][ T253] [ 3552.643596][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3552.643596][ T253] netdev_get_by_index+0x5e/0x80 [ 3552.643596][ T253] fib6_nh_init+0x3d8/0x1580 [ 3552.643596][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3552.643596][ T253] ip6_route_add+0x1c/0x140 [ 3552.643596][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3552.643596][ T253] addrconf_add_dev+0xe2/0x170 [ 3552.643596][ T253] inet6_addr_add+0x12f/0xa40 [ 3552.643596][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3552.643596][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3552.643596][ T253] netlink_rcv_skb+0x130/0x360 [ 3552.643596][ T253] netlink_unicast+0x449/0x710 [ 3552.643596][ T253] netlink_sendmsg+0x723/0xbe0 [ 3552.643596][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3552.643596][ T253] ___sys_sendmsg+0xee/0x170 [ 3552.643596][ T253] __sys_sendmsg+0xcd/0x170 [ 3552.643596][ T253] do_syscall_64+0xc6/0x1e0 [ 3552.643596][ T253] [ 3552.645820][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3552.645820][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3552.645820][ T253] ipv6_find_idev+0x102/0x170 [ 3552.645820][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3552.645820][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3552.645820][ T253] netlink_rcv_skb+0x130/0x360 [ 3552.645820][ T253] netlink_unicast+0x449/0x710 [ 3552.645820][ T253] netlink_sendmsg+0x723/0xbe0 [ 3552.645820][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3552.645820][ T253] ___sys_sendmsg+0xee/0x170 [ 3552.645820][ T253] __sys_sendmsg+0xcd/0x170 [ 3552.645820][ T253] do_syscall_64+0xc6/0x1e0 [ 3552.645820][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3552.645820][ T253] [ 3552.647543][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3552.647543][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3552.647543][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3552.647543][ T253] ipv6_find_idev+0x102/0x170 [ 3552.647543][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3552.647543][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3552.647543][ T253] netlink_rcv_skb+0x130/0x360 [ 3552.647543][ T253] netlink_unicast+0x449/0x710 [ 3552.647543][ T253] netlink_sendmsg+0x723/0xbe0 [ 3552.647543][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3552.647543][ T253] ___sys_sendmsg+0xee/0x170 [ 3552.647543][ T253] __sys_sendmsg+0xcd/0x170 [ 3552.647543][ T253] do_syscall_64+0xc6/0x1e0 [ 3552.647543][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3552.647543][ T253] [ 3562.890318][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3562.890814][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3562.890814][ T253] dst_init+0x84/0x4a0 [ 3562.890814][ T253] dst_alloc+0x97/0x150 [ 3562.890814][ T253] ip6_dst_alloc+0x23/0x90 [ 3562.890814][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3562.890814][ T253] ip6_pol_route+0x56f/0x840 [ 3562.890814][ T253] fib6_rule_lookup+0x334/0x630 [ 3562.890814][ T253] ip6_route_output_flags+0x259/0x480 [ 3562.890814][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3562.890814][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3562.890814][ T253] netlink_rcv_skb+0x130/0x360 [ 3562.890814][ T253] netlink_unicast+0x449/0x710 [ 3562.890814][ T253] netlink_sendmsg+0x723/0xbe0 [ 3562.890814][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3562.890814][ T253] ___sys_sendmsg+0xee/0x170 [ 3562.890814][ T253] __sys_sendmsg+0xcd/0x170 [ 3562.890814][ T253] do_syscall_64+0xc6/0x1e0 [ 3562.890814][ T253] [ 3562.893022][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3562.893022][ T253] netdev_get_by_index+0x5e/0x80 [ 3562.893022][ T253] fib6_nh_init+0x3d8/0x1580 [ 3562.893022][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3562.893022][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3562.893022][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3562.893022][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3562.893022][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3562.893022][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3562.893022][ T253] addrconf_dad_begin+0x310/0x670 [ 3562.893022][ T253] addrconf_dad_work+0x10b/0xab0 [ 3562.893022][ T253] process_one_work+0x84d/0x18a0 [ 3562.893022][ T253] worker_thread+0x587/0xd30 [ 3562.893022][ T253] kthread+0x28a/0x350 [ 3562.893022][ T253] ret_from_fork+0x31/0x70 [ 3562.893022][ T253] ret_from_fork_asm+0x1a/0x30 [ 3562.893022][ T253] [ 3562.895681][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3562.895681][ T253] netdev_get_by_index+0x5e/0x80 [ 3562.895681][ T253] fib6_nh_init+0x3d8/0x1580 [ 3562.895681][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3562.895681][ T253] ip6_route_add+0x1c/0x140 [ 3562.895681][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3562.895681][ T253] inet6_addr_add+0x4f8/0xa40 [ 3562.895681][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3562.895681][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3562.895681][ T253] netlink_rcv_skb+0x130/0x360 [ 3562.895681][ T253] netlink_unicast+0x449/0x710 [ 3562.895681][ T253] netlink_sendmsg+0x723/0xbe0 [ 3562.895681][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3562.895681][ T253] ___sys_sendmsg+0xee/0x170 [ 3562.895681][ T253] __sys_sendmsg+0xcd/0x170 [ 3562.895681][ T253] do_syscall_64+0xc6/0x1e0 [ 3562.895681][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3562.895681][ T253] [ 3562.898338][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3562.898338][ T253] netdev_get_by_index+0x5e/0x80 [ 3562.898338][ T253] fib6_nh_init+0x3d8/0x1580 [ 3562.898338][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3562.898338][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3562.898338][ T253] ipv6_add_addr+0x411/0x2000 [ 3562.898338][ T253] inet6_addr_add+0x30e/0xa40 [ 3562.898338][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3562.898338][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3562.898338][ T253] netlink_rcv_skb+0x130/0x360 [ 3562.898338][ T253] netlink_unicast+0x449/0x710 [ 3562.898338][ T253] netlink_sendmsg+0x723/0xbe0 [ 3562.898338][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3562.898338][ T253] ___sys_sendmsg+0xee/0x170 [ 3562.898338][ T253] __sys_sendmsg+0xcd/0x170 [ 3562.898338][ T253] do_syscall_64+0xc6/0x1e0 [ 3562.898338][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3562.898338][ T253] [ 3562.900574][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3562.900574][ T253] netdev_get_by_index+0x5e/0x80 [ 3562.900574][ T253] fib6_nh_init+0x3d8/0x1580 [ 3562.900574][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3562.900574][ T253] ip6_route_add+0x1c/0x140 [ 3562.900574][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3562.900574][ T253] addrconf_add_dev+0xe2/0x170 [ 3562.900574][ T253] inet6_addr_add+0x12f/0xa40 [ 3562.900574][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3562.900574][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3562.900574][ T253] netlink_rcv_skb+0x130/0x360 [ 3562.900574][ T253] netlink_unicast+0x449/0x710 [ 3562.900574][ T253] netlink_sendmsg+0x723/0xbe0 [ 3562.900574][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3562.900574][ T253] ___sys_sendmsg+0xee/0x170 [ 3562.900574][ T253] __sys_sendmsg+0xcd/0x170 [ 3562.900574][ T253] do_syscall_64+0xc6/0x1e0 [ 3562.900574][ T253] [ 3562.902781][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3562.902781][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3562.902781][ T253] ipv6_find_idev+0x102/0x170 [ 3562.902781][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3562.902781][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3562.902781][ T253] netlink_rcv_skb+0x130/0x360 [ 3562.902781][ T253] netlink_unicast+0x449/0x710 [ 3562.902781][ T253] netlink_sendmsg+0x723/0xbe0 [ 3562.902781][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3562.902781][ T253] ___sys_sendmsg+0xee/0x170 [ 3562.902781][ T253] __sys_sendmsg+0xcd/0x170 [ 3562.902781][ T253] do_syscall_64+0xc6/0x1e0 [ 3562.902781][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3562.902781][ T253] [ 3562.904503][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3562.904503][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3562.904503][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3562.904503][ T253] ipv6_find_idev+0x102/0x170 [ 3562.904503][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3562.904503][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3562.904503][ T253] netlink_rcv_skb+0x130/0x360 [ 3562.904503][ T253] netlink_unicast+0x449/0x710 [ 3562.904503][ T253] netlink_sendmsg+0x723/0xbe0 [ 3562.904503][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3562.904503][ T253] ___sys_sendmsg+0xee/0x170 [ 3562.904503][ T253] __sys_sendmsg+0xcd/0x170 [ 3562.904503][ T253] do_syscall_64+0xc6/0x1e0 [ 3562.904503][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3562.904503][ T253] [ 3573.146302][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3573.146805][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3573.146805][ T253] dst_init+0x84/0x4a0 [ 3573.146805][ T253] dst_alloc+0x97/0x150 [ 3573.146805][ T253] ip6_dst_alloc+0x23/0x90 [ 3573.146805][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3573.146805][ T253] ip6_pol_route+0x56f/0x840 [ 3573.146805][ T253] fib6_rule_lookup+0x334/0x630 [ 3573.146805][ T253] ip6_route_output_flags+0x259/0x480 [ 3573.146805][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3573.146805][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3573.146805][ T253] netlink_rcv_skb+0x130/0x360 [ 3573.146805][ T253] netlink_unicast+0x449/0x710 [ 3573.146805][ T253] netlink_sendmsg+0x723/0xbe0 [ 3573.146805][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3573.146805][ T253] ___sys_sendmsg+0xee/0x170 [ 3573.146805][ T253] __sys_sendmsg+0xcd/0x170 [ 3573.146805][ T253] do_syscall_64+0xc6/0x1e0 [ 3573.146805][ T253] [ 3573.149003][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3573.149003][ T253] netdev_get_by_index+0x5e/0x80 [ 3573.149003][ T253] fib6_nh_init+0x3d8/0x1580 [ 3573.149003][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3573.149003][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3573.149003][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3573.149003][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3573.149003][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3573.149003][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3573.149003][ T253] addrconf_dad_begin+0x310/0x670 [ 3573.149003][ T253] addrconf_dad_work+0x10b/0xab0 [ 3573.149003][ T253] process_one_work+0x84d/0x18a0 [ 3573.149003][ T253] worker_thread+0x587/0xd30 [ 3573.149003][ T253] kthread+0x28a/0x350 [ 3573.149003][ T253] ret_from_fork+0x31/0x70 [ 3573.149003][ T253] ret_from_fork_asm+0x1a/0x30 [ 3573.149003][ T253] [ 3573.151148][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3573.151148][ T253] netdev_get_by_index+0x5e/0x80 [ 3573.151148][ T253] fib6_nh_init+0x3d8/0x1580 [ 3573.151148][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3573.151148][ T253] ip6_route_add+0x1c/0x140 [ 3573.151148][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3573.151148][ T253] inet6_addr_add+0x4f8/0xa40 [ 3573.151148][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3573.151148][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3573.151148][ T253] netlink_rcv_skb+0x130/0x360 [ 3573.151148][ T253] netlink_unicast+0x449/0x710 [ 3573.151148][ T253] netlink_sendmsg+0x723/0xbe0 [ 3573.151148][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3573.151148][ T253] ___sys_sendmsg+0xee/0x170 [ 3573.151148][ T253] __sys_sendmsg+0xcd/0x170 [ 3573.151148][ T253] do_syscall_64+0xc6/0x1e0 [ 3573.151148][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3573.151148][ T253] [ 3573.153409][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3573.153409][ T253] netdev_get_by_index+0x5e/0x80 [ 3573.153409][ T253] fib6_nh_init+0x3d8/0x1580 [ 3573.153409][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3573.153409][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3573.153409][ T253] ipv6_add_addr+0x411/0x2000 [ 3573.153409][ T253] inet6_addr_add+0x30e/0xa40 [ 3573.153409][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3573.153409][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3573.153409][ T253] netlink_rcv_skb+0x130/0x360 [ 3573.153409][ T253] netlink_unicast+0x449/0x710 [ 3573.153409][ T253] netlink_sendmsg+0x723/0xbe0 [ 3573.153409][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3573.153409][ T253] ___sys_sendmsg+0xee/0x170 [ 3573.153409][ T253] __sys_sendmsg+0xcd/0x170 [ 3573.153409][ T253] do_syscall_64+0xc6/0x1e0 [ 3573.153409][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3573.153409][ T253] [ 3573.156037][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3573.156037][ T253] netdev_get_by_index+0x5e/0x80 [ 3573.156037][ T253] fib6_nh_init+0x3d8/0x1580 [ 3573.156037][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3573.156037][ T253] ip6_route_add+0x1c/0x140 [ 3573.156037][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3573.156037][ T253] addrconf_add_dev+0xe2/0x170 [ 3573.156037][ T253] inet6_addr_add+0x12f/0xa40 [ 3573.156037][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3573.156037][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3573.156037][ T253] netlink_rcv_skb+0x130/0x360 [ 3573.156037][ T253] netlink_unicast+0x449/0x710 [ 3573.156037][ T253] netlink_sendmsg+0x723/0xbe0 [ 3573.156037][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3573.156037][ T253] ___sys_sendmsg+0xee/0x170 [ 3573.156037][ T253] __sys_sendmsg+0xcd/0x170 [ 3573.156037][ T253] do_syscall_64+0xc6/0x1e0 [ 3573.156037][ T253] [ 3573.158246][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3573.158246][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3573.158246][ T253] ipv6_find_idev+0x102/0x170 [ 3573.158246][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3573.158246][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3573.158246][ T253] netlink_rcv_skb+0x130/0x360 [ 3573.158246][ T253] netlink_unicast+0x449/0x710 [ 3573.158246][ T253] netlink_sendmsg+0x723/0xbe0 [ 3573.158246][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3573.158246][ T253] ___sys_sendmsg+0xee/0x170 [ 3573.158246][ T253] __sys_sendmsg+0xcd/0x170 [ 3573.158246][ T253] do_syscall_64+0xc6/0x1e0 [ 3573.158246][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3573.158246][ T253] [ 3573.160356][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3573.160356][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3573.160356][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3573.160356][ T253] ipv6_find_idev+0x102/0x170 [ 3573.160356][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3573.160356][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3573.160356][ T253] netlink_rcv_skb+0x130/0x360 [ 3573.160356][ T253] netlink_unicast+0x449/0x710 [ 3573.160356][ T253] netlink_sendmsg+0x723/0xbe0 [ 3573.160356][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3573.160356][ T253] ___sys_sendmsg+0xee/0x170 [ 3573.160356][ T253] __sys_sendmsg+0xcd/0x170 [ 3573.160356][ T253] do_syscall_64+0xc6/0x1e0 [ 3573.160356][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3573.160356][ T253] [ 3583.402236][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3583.402717][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3583.402717][ T253] dst_init+0x84/0x4a0 [ 3583.402717][ T253] dst_alloc+0x97/0x150 [ 3583.402717][ T253] ip6_dst_alloc+0x23/0x90 [ 3583.402717][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3583.402717][ T253] ip6_pol_route+0x56f/0x840 [ 3583.402717][ T253] fib6_rule_lookup+0x334/0x630 [ 3583.402717][ T253] ip6_route_output_flags+0x259/0x480 [ 3583.402717][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3583.402717][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3583.402717][ T253] netlink_rcv_skb+0x130/0x360 [ 3583.402717][ T253] netlink_unicast+0x449/0x710 [ 3583.402717][ T253] netlink_sendmsg+0x723/0xbe0 [ 3583.402717][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3583.402717][ T253] ___sys_sendmsg+0xee/0x170 [ 3583.402717][ T253] __sys_sendmsg+0xcd/0x170 [ 3583.402717][ T253] do_syscall_64+0xc6/0x1e0 [ 3583.402717][ T253] [ 3583.404927][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3583.404927][ T253] netdev_get_by_index+0x5e/0x80 [ 3583.404927][ T253] fib6_nh_init+0x3d8/0x1580 [ 3583.404927][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3583.404927][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3583.404927][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3583.404927][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3583.404927][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3583.404927][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3583.404927][ T253] addrconf_dad_begin+0x310/0x670 [ 3583.404927][ T253] addrconf_dad_work+0x10b/0xab0 [ 3583.404927][ T253] process_one_work+0x84d/0x18a0 [ 3583.404927][ T253] worker_thread+0x587/0xd30 [ 3583.404927][ T253] kthread+0x28a/0x350 [ 3583.404927][ T253] ret_from_fork+0x31/0x70 [ 3583.404927][ T253] ret_from_fork_asm+0x1a/0x30 [ 3583.404927][ T253] [ 3583.407113][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3583.407113][ T253] netdev_get_by_index+0x5e/0x80 [ 3583.407113][ T253] fib6_nh_init+0x3d8/0x1580 [ 3583.407113][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3583.407113][ T253] ip6_route_add+0x1c/0x140 [ 3583.407113][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3583.407113][ T253] inet6_addr_add+0x4f8/0xa40 [ 3583.407113][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3583.407113][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3583.407113][ T253] netlink_rcv_skb+0x130/0x360 [ 3583.407113][ T253] netlink_unicast+0x449/0x710 [ 3583.407113][ T253] netlink_sendmsg+0x723/0xbe0 [ 3583.407113][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3583.407113][ T253] ___sys_sendmsg+0xee/0x170 [ 3583.407113][ T253] __sys_sendmsg+0xcd/0x170 [ 3583.407113][ T253] do_syscall_64+0xc6/0x1e0 [ 3583.407113][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3583.407113][ T253] [ 3583.409359][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3583.409359][ T253] netdev_get_by_index+0x5e/0x80 [ 3583.409359][ T253] fib6_nh_init+0x3d8/0x1580 [ 3583.409359][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3583.409359][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3583.409359][ T253] ipv6_add_addr+0x411/0x2000 [ 3583.409359][ T253] inet6_addr_add+0x30e/0xa40 [ 3583.409359][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3583.409359][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3583.409359][ T253] netlink_rcv_skb+0x130/0x360 [ 3583.409359][ T253] netlink_unicast+0x449/0x710 [ 3583.409359][ T253] netlink_sendmsg+0x723/0xbe0 [ 3583.409359][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3583.409359][ T253] ___sys_sendmsg+0xee/0x170 [ 3583.409359][ T253] __sys_sendmsg+0xcd/0x170 [ 3583.409359][ T253] do_syscall_64+0xc6/0x1e0 [ 3583.409359][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3583.409359][ T253] [ 3583.411592][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3583.411592][ T253] netdev_get_by_index+0x5e/0x80 [ 3583.411592][ T253] fib6_nh_init+0x3d8/0x1580 [ 3583.411592][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3583.411592][ T253] ip6_route_add+0x1c/0x140 [ 3583.411592][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3583.411592][ T253] addrconf_add_dev+0xe2/0x170 [ 3583.411592][ T253] inet6_addr_add+0x12f/0xa40 [ 3583.411592][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3583.411592][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3583.411592][ T253] netlink_rcv_skb+0x130/0x360 [ 3583.411592][ T253] netlink_unicast+0x449/0x710 [ 3583.411592][ T253] netlink_sendmsg+0x723/0xbe0 [ 3583.411592][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3583.411592][ T253] ___sys_sendmsg+0xee/0x170 [ 3583.411592][ T253] __sys_sendmsg+0xcd/0x170 [ 3583.411592][ T253] do_syscall_64+0xc6/0x1e0 [ 3583.411592][ T253] [ 3583.413802][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3583.413802][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3583.413802][ T253] ipv6_find_idev+0x102/0x170 [ 3583.413802][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3583.413802][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3583.413802][ T253] netlink_rcv_skb+0x130/0x360 [ 3583.413802][ T253] netlink_unicast+0x449/0x710 [ 3583.413802][ T253] netlink_sendmsg+0x723/0xbe0 [ 3583.413802][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3583.413802][ T253] ___sys_sendmsg+0xee/0x170 [ 3583.413802][ T253] __sys_sendmsg+0xcd/0x170 [ 3583.413802][ T253] do_syscall_64+0xc6/0x1e0 [ 3583.413802][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3583.413802][ T253] [ 3583.415526][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3583.415526][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3583.415526][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3583.415526][ T253] ipv6_find_idev+0x102/0x170 [ 3583.415526][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3583.415526][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3583.415526][ T253] netlink_rcv_skb+0x130/0x360 [ 3583.415526][ T253] netlink_unicast+0x449/0x710 [ 3583.415526][ T253] netlink_sendmsg+0x723/0xbe0 [ 3583.415526][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3583.415526][ T253] ___sys_sendmsg+0xee/0x170 [ 3583.415526][ T253] __sys_sendmsg+0xcd/0x170 [ 3583.415526][ T253] do_syscall_64+0xc6/0x1e0 [ 3583.415526][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3583.415526][ T253] [ 3593.618245][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3593.618737][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3593.618737][ T253] dst_init+0x84/0x4a0 [ 3593.618737][ T253] dst_alloc+0x97/0x150 [ 3593.618737][ T253] ip6_dst_alloc+0x23/0x90 [ 3593.618737][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3593.618737][ T253] ip6_pol_route+0x56f/0x840 [ 3593.618737][ T253] fib6_rule_lookup+0x334/0x630 [ 3593.618737][ T253] ip6_route_output_flags+0x259/0x480 [ 3593.618737][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3593.618737][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3593.618737][ T253] netlink_rcv_skb+0x130/0x360 [ 3593.618737][ T253] netlink_unicast+0x449/0x710 [ 3593.618737][ T253] netlink_sendmsg+0x723/0xbe0 [ 3593.618737][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3593.618737][ T253] ___sys_sendmsg+0xee/0x170 [ 3593.618737][ T253] __sys_sendmsg+0xcd/0x170 [ 3593.618737][ T253] do_syscall_64+0xc6/0x1e0 [ 3593.618737][ T253] [ 3593.621384][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3593.621384][ T253] netdev_get_by_index+0x5e/0x80 [ 3593.621384][ T253] fib6_nh_init+0x3d8/0x1580 [ 3593.621384][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3593.621384][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3593.621384][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3593.621384][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3593.621384][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3593.621384][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3593.621384][ T253] addrconf_dad_begin+0x310/0x670 [ 3593.621384][ T253] addrconf_dad_work+0x10b/0xab0 [ 3593.621384][ T253] process_one_work+0x84d/0x18a0 [ 3593.621384][ T253] worker_thread+0x587/0xd30 [ 3593.621384][ T253] kthread+0x28a/0x350 [ 3593.621384][ T253] ret_from_fork+0x31/0x70 [ 3593.621384][ T253] ret_from_fork_asm+0x1a/0x30 [ 3593.621384][ T253] [ 3593.623993][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3593.623993][ T253] netdev_get_by_index+0x5e/0x80 [ 3593.623993][ T253] fib6_nh_init+0x3d8/0x1580 [ 3593.623993][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3593.623993][ T253] ip6_route_add+0x1c/0x140 [ 3593.623993][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3593.623993][ T253] inet6_addr_add+0x4f8/0xa40 [ 3593.623993][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3593.623993][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3593.623993][ T253] netlink_rcv_skb+0x130/0x360 [ 3593.623993][ T253] netlink_unicast+0x449/0x710 [ 3593.623993][ T253] netlink_sendmsg+0x723/0xbe0 [ 3593.623993][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3593.623993][ T253] ___sys_sendmsg+0xee/0x170 [ 3593.623993][ T253] __sys_sendmsg+0xcd/0x170 [ 3593.623993][ T253] do_syscall_64+0xc6/0x1e0 [ 3593.623993][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3593.623993][ T253] [ 3593.626711][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3593.626711][ T253] netdev_get_by_index+0x5e/0x80 [ 3593.626711][ T253] fib6_nh_init+0x3d8/0x1580 [ 3593.626711][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3593.626711][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3593.626711][ T253] ipv6_add_addr+0x411/0x2000 [ 3593.626711][ T253] inet6_addr_add+0x30e/0xa40 [ 3593.626711][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3593.626711][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3593.626711][ T253] netlink_rcv_skb+0x130/0x360 [ 3593.626711][ T253] netlink_unicast+0x449/0x710 [ 3593.626711][ T253] netlink_sendmsg+0x723/0xbe0 [ 3593.626711][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3593.626711][ T253] ___sys_sendmsg+0xee/0x170 [ 3593.626711][ T253] __sys_sendmsg+0xcd/0x170 [ 3593.626711][ T253] do_syscall_64+0xc6/0x1e0 [ 3593.626711][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3593.626711][ T253] [ 3593.629437][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3593.629437][ T253] netdev_get_by_index+0x5e/0x80 [ 3593.629437][ T253] fib6_nh_init+0x3d8/0x1580 [ 3593.629437][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3593.629437][ T253] ip6_route_add+0x1c/0x140 [ 3593.629437][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3593.629437][ T253] addrconf_add_dev+0xe2/0x170 [ 3593.629437][ T253] inet6_addr_add+0x12f/0xa40 [ 3593.629437][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3593.629437][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3593.629437][ T253] netlink_rcv_skb+0x130/0x360 [ 3593.629437][ T253] netlink_unicast+0x449/0x710 [ 3593.629437][ T253] netlink_sendmsg+0x723/0xbe0 [ 3593.629437][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3593.629437][ T253] ___sys_sendmsg+0xee/0x170 [ 3593.629437][ T253] __sys_sendmsg+0xcd/0x170 [ 3593.629437][ T253] do_syscall_64+0xc6/0x1e0 [ 3593.629437][ T253] [ 3593.632104][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3593.632104][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3593.632104][ T253] ipv6_find_idev+0x102/0x170 [ 3593.632104][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3593.632104][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3593.632104][ T253] netlink_rcv_skb+0x130/0x360 [ 3593.632104][ T253] netlink_unicast+0x449/0x710 [ 3593.632104][ T253] netlink_sendmsg+0x723/0xbe0 [ 3593.632104][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3593.632104][ T253] ___sys_sendmsg+0xee/0x170 [ 3593.632104][ T253] __sys_sendmsg+0xcd/0x170 [ 3593.632104][ T253] do_syscall_64+0xc6/0x1e0 [ 3593.632104][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3593.632104][ T253] [ 3593.634206][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3593.634206][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3593.634206][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3593.634206][ T253] ipv6_find_idev+0x102/0x170 [ 3593.634206][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3593.634206][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3593.634206][ T253] netlink_rcv_skb+0x130/0x360 [ 3593.634206][ T253] netlink_unicast+0x449/0x710 [ 3593.634206][ T253] netlink_sendmsg+0x723/0xbe0 [ 3593.634206][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3593.634206][ T253] ___sys_sendmsg+0xee/0x170 [ 3593.634206][ T253] __sys_sendmsg+0xcd/0x170 [ 3593.634206][ T253] do_syscall_64+0xc6/0x1e0 [ 3593.634206][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3593.634206][ T253] [ 3603.882244][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3603.882772][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3603.882772][ T253] dst_init+0x84/0x4a0 [ 3603.882772][ T253] dst_alloc+0x97/0x150 [ 3603.882772][ T253] ip6_dst_alloc+0x23/0x90 [ 3603.882772][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3603.882772][ T253] ip6_pol_route+0x56f/0x840 [ 3603.882772][ T253] fib6_rule_lookup+0x334/0x630 [ 3603.882772][ T253] ip6_route_output_flags+0x259/0x480 [ 3603.882772][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3603.882772][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3603.882772][ T253] netlink_rcv_skb+0x130/0x360 [ 3603.882772][ T253] netlink_unicast+0x449/0x710 [ 3603.882772][ T253] netlink_sendmsg+0x723/0xbe0 [ 3603.882772][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3603.882772][ T253] ___sys_sendmsg+0xee/0x170 [ 3603.882772][ T253] __sys_sendmsg+0xcd/0x170 [ 3603.882772][ T253] do_syscall_64+0xc6/0x1e0 [ 3603.882772][ T253] [ 3603.884960][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3603.884960][ T253] netdev_get_by_index+0x5e/0x80 [ 3603.884960][ T253] fib6_nh_init+0x3d8/0x1580 [ 3603.884960][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3603.884960][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3603.884960][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3603.884960][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3603.884960][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3603.884960][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3603.884960][ T253] addrconf_dad_begin+0x310/0x670 [ 3603.884960][ T253] addrconf_dad_work+0x10b/0xab0 [ 3603.884960][ T253] process_one_work+0x84d/0x18a0 [ 3603.884960][ T253] worker_thread+0x587/0xd30 [ 3603.884960][ T253] kthread+0x28a/0x350 [ 3603.884960][ T253] ret_from_fork+0x31/0x70 [ 3603.884960][ T253] ret_from_fork_asm+0x1a/0x30 [ 3603.884960][ T253] [ 3603.887097][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3603.887097][ T253] netdev_get_by_index+0x5e/0x80 [ 3603.887097][ T253] fib6_nh_init+0x3d8/0x1580 [ 3603.887097][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3603.887097][ T253] ip6_route_add+0x1c/0x140 [ 3603.887097][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3603.887097][ T253] inet6_addr_add+0x4f8/0xa40 [ 3603.887097][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3603.887097][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3603.887097][ T253] netlink_rcv_skb+0x130/0x360 [ 3603.887097][ T253] netlink_unicast+0x449/0x710 [ 3603.887097][ T253] netlink_sendmsg+0x723/0xbe0 [ 3603.887097][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3603.887097][ T253] ___sys_sendmsg+0xee/0x170 [ 3603.887097][ T253] __sys_sendmsg+0xcd/0x170 [ 3603.887097][ T253] do_syscall_64+0xc6/0x1e0 [ 3603.887097][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3603.887097][ T253] [ 3603.889336][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3603.889336][ T253] netdev_get_by_index+0x5e/0x80 [ 3603.889336][ T253] fib6_nh_init+0x3d8/0x1580 [ 3603.889336][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3603.889336][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3603.889336][ T253] ipv6_add_addr+0x411/0x2000 [ 3603.889336][ T253] inet6_addr_add+0x30e/0xa40 [ 3603.889336][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3603.889336][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3603.889336][ T253] netlink_rcv_skb+0x130/0x360 [ 3603.889336][ T253] netlink_unicast+0x449/0x710 [ 3603.889336][ T253] netlink_sendmsg+0x723/0xbe0 [ 3603.889336][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3603.889336][ T253] ___sys_sendmsg+0xee/0x170 [ 3603.889336][ T253] __sys_sendmsg+0xcd/0x170 [ 3603.889336][ T253] do_syscall_64+0xc6/0x1e0 [ 3603.889336][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3603.889336][ T253] [ 3603.891758][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3603.891758][ T253] netdev_get_by_index+0x5e/0x80 [ 3603.891758][ T253] fib6_nh_init+0x3d8/0x1580 [ 3603.891758][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3603.891758][ T253] ip6_route_add+0x1c/0x140 [ 3603.891758][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3603.891758][ T253] addrconf_add_dev+0xe2/0x170 [ 3603.891758][ T253] inet6_addr_add+0x12f/0xa40 [ 3603.891758][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3603.891758][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3603.891758][ T253] netlink_rcv_skb+0x130/0x360 [ 3603.891758][ T253] netlink_unicast+0x449/0x710 [ 3603.891758][ T253] netlink_sendmsg+0x723/0xbe0 [ 3603.891758][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3603.891758][ T253] ___sys_sendmsg+0xee/0x170 [ 3603.891758][ T253] __sys_sendmsg+0xcd/0x170 [ 3603.891758][ T253] do_syscall_64+0xc6/0x1e0 [ 3603.891758][ T253] [ 3603.894226][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3603.894226][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3603.894226][ T253] ipv6_find_idev+0x102/0x170 [ 3603.894226][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3603.894226][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3603.894226][ T253] netlink_rcv_skb+0x130/0x360 [ 3603.894226][ T253] netlink_unicast+0x449/0x710 [ 3603.894226][ T253] netlink_sendmsg+0x723/0xbe0 [ 3603.894226][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3603.894226][ T253] ___sys_sendmsg+0xee/0x170 [ 3603.894226][ T253] __sys_sendmsg+0xcd/0x170 [ 3603.894226][ T253] do_syscall_64+0xc6/0x1e0 [ 3603.894226][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3603.894226][ T253] [ 3603.895947][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3603.895947][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3603.895947][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3603.895947][ T253] ipv6_find_idev+0x102/0x170 [ 3603.895947][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3603.895947][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3603.895947][ T253] netlink_rcv_skb+0x130/0x360 [ 3603.895947][ T253] netlink_unicast+0x449/0x710 [ 3603.895947][ T253] netlink_sendmsg+0x723/0xbe0 [ 3603.895947][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3603.895947][ T253] ___sys_sendmsg+0xee/0x170 [ 3603.895947][ T253] __sys_sendmsg+0xcd/0x170 [ 3603.895947][ T253] do_syscall_64+0xc6/0x1e0 [ 3603.895947][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3603.895947][ T253] [ 3614.146245][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3614.146655][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3614.146655][ T253] dst_init+0x84/0x4a0 [ 3614.146655][ T253] dst_alloc+0x97/0x150 [ 3614.146655][ T253] ip6_dst_alloc+0x23/0x90 [ 3614.146655][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3614.146655][ T253] ip6_pol_route+0x56f/0x840 [ 3614.146655][ T253] fib6_rule_lookup+0x334/0x630 [ 3614.146655][ T253] ip6_route_output_flags+0x259/0x480 [ 3614.146655][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3614.146655][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3614.146655][ T253] netlink_rcv_skb+0x130/0x360 [ 3614.146655][ T253] netlink_unicast+0x449/0x710 [ 3614.146655][ T253] netlink_sendmsg+0x723/0xbe0 [ 3614.146655][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3614.146655][ T253] ___sys_sendmsg+0xee/0x170 [ 3614.146655][ T253] __sys_sendmsg+0xcd/0x170 [ 3614.146655][ T253] do_syscall_64+0xc6/0x1e0 [ 3614.146655][ T253] [ 3614.148853][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3614.148853][ T253] netdev_get_by_index+0x5e/0x80 [ 3614.148853][ T253] fib6_nh_init+0x3d8/0x1580 [ 3614.148853][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3614.148853][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3614.148853][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3614.148853][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3614.148853][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3614.148853][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3614.148853][ T253] addrconf_dad_begin+0x310/0x670 [ 3614.148853][ T253] addrconf_dad_work+0x10b/0xab0 [ 3614.148853][ T253] process_one_work+0x84d/0x18a0 [ 3614.148853][ T253] worker_thread+0x587/0xd30 [ 3614.148853][ T253] kthread+0x28a/0x350 [ 3614.148853][ T253] ret_from_fork+0x31/0x70 [ 3614.148853][ T253] ret_from_fork_asm+0x1a/0x30 [ 3614.148853][ T253] [ 3614.150985][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3614.150985][ T253] netdev_get_by_index+0x5e/0x80 [ 3614.150985][ T253] fib6_nh_init+0x3d8/0x1580 [ 3614.150985][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3614.150985][ T253] ip6_route_add+0x1c/0x140 [ 3614.150985][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3614.150985][ T253] inet6_addr_add+0x4f8/0xa40 [ 3614.150985][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3614.150985][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3614.150985][ T253] netlink_rcv_skb+0x130/0x360 [ 3614.150985][ T253] netlink_unicast+0x449/0x710 [ 3614.150985][ T253] netlink_sendmsg+0x723/0xbe0 [ 3614.150985][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3614.150985][ T253] ___sys_sendmsg+0xee/0x170 [ 3614.150985][ T253] __sys_sendmsg+0xcd/0x170 [ 3614.150985][ T253] do_syscall_64+0xc6/0x1e0 [ 3614.150985][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3614.150985][ T253] [ 3614.153242][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3614.153242][ T253] netdev_get_by_index+0x5e/0x80 [ 3614.153242][ T253] fib6_nh_init+0x3d8/0x1580 [ 3614.153242][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3614.153242][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3614.153242][ T253] ipv6_add_addr+0x411/0x2000 [ 3614.153242][ T253] inet6_addr_add+0x30e/0xa40 [ 3614.153242][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3614.153242][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3614.153242][ T253] netlink_rcv_skb+0x130/0x360 [ 3614.153242][ T253] netlink_unicast+0x449/0x710 [ 3614.153242][ T253] netlink_sendmsg+0x723/0xbe0 [ 3614.153242][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3614.153242][ T253] ___sys_sendmsg+0xee/0x170 [ 3614.153242][ T253] __sys_sendmsg+0xcd/0x170 [ 3614.153242][ T253] do_syscall_64+0xc6/0x1e0 [ 3614.153242][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3614.153242][ T253] [ 3614.155485][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3614.155485][ T253] netdev_get_by_index+0x5e/0x80 [ 3614.155485][ T253] fib6_nh_init+0x3d8/0x1580 [ 3614.155485][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3614.155485][ T253] ip6_route_add+0x1c/0x140 [ 3614.155485][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3614.155485][ T253] addrconf_add_dev+0xe2/0x170 [ 3614.155485][ T253] inet6_addr_add+0x12f/0xa40 [ 3614.155485][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3614.155485][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3614.155485][ T253] netlink_rcv_skb+0x130/0x360 [ 3614.155485][ T253] netlink_unicast+0x449/0x710 [ 3614.155485][ T253] netlink_sendmsg+0x723/0xbe0 [ 3614.155485][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3614.155485][ T253] ___sys_sendmsg+0xee/0x170 [ 3614.155485][ T253] __sys_sendmsg+0xcd/0x170 [ 3614.155485][ T253] do_syscall_64+0xc6/0x1e0 [ 3614.155485][ T253] [ 3614.157690][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3614.157690][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3614.157690][ T253] ipv6_find_idev+0x102/0x170 [ 3614.157690][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3614.157690][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3614.157690][ T253] netlink_rcv_skb+0x130/0x360 [ 3614.157690][ T253] netlink_unicast+0x449/0x710 [ 3614.157690][ T253] netlink_sendmsg+0x723/0xbe0 [ 3614.157690][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3614.157690][ T253] ___sys_sendmsg+0xee/0x170 [ 3614.157690][ T253] __sys_sendmsg+0xcd/0x170 [ 3614.157690][ T253] do_syscall_64+0xc6/0x1e0 [ 3614.157690][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3614.157690][ T253] [ 3614.159413][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3614.159413][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3614.159413][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3614.159413][ T253] ipv6_find_idev+0x102/0x170 [ 3614.159413][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3614.159413][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3614.159413][ T253] netlink_rcv_skb+0x130/0x360 [ 3614.159413][ T253] netlink_unicast+0x449/0x710 [ 3614.159413][ T253] netlink_sendmsg+0x723/0xbe0 [ 3614.159413][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3614.159413][ T253] ___sys_sendmsg+0xee/0x170 [ 3614.159413][ T253] __sys_sendmsg+0xcd/0x170 [ 3614.159413][ T253] do_syscall_64+0xc6/0x1e0 [ 3614.159413][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3614.159413][ T253] [ 3624.410347][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3624.410833][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3624.410833][ T253] dst_init+0x84/0x4a0 [ 3624.410833][ T253] dst_alloc+0x97/0x150 [ 3624.410833][ T253] ip6_dst_alloc+0x23/0x90 [ 3624.410833][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3624.410833][ T253] ip6_pol_route+0x56f/0x840 [ 3624.410833][ T253] fib6_rule_lookup+0x334/0x630 [ 3624.410833][ T253] ip6_route_output_flags+0x259/0x480 [ 3624.410833][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3624.410833][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3624.410833][ T253] netlink_rcv_skb+0x130/0x360 [ 3624.410833][ T253] netlink_unicast+0x449/0x710 [ 3624.410833][ T253] netlink_sendmsg+0x723/0xbe0 [ 3624.410833][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3624.410833][ T253] ___sys_sendmsg+0xee/0x170 [ 3624.410833][ T253] __sys_sendmsg+0xcd/0x170 [ 3624.410833][ T253] do_syscall_64+0xc6/0x1e0 [ 3624.410833][ T253] [ 3624.413039][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3624.413039][ T253] netdev_get_by_index+0x5e/0x80 [ 3624.413039][ T253] fib6_nh_init+0x3d8/0x1580 [ 3624.413039][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3624.413039][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3624.413039][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3624.413039][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3624.413039][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3624.413039][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3624.413039][ T253] addrconf_dad_begin+0x310/0x670 [ 3624.413039][ T253] addrconf_dad_work+0x10b/0xab0 [ 3624.413039][ T253] process_one_work+0x84d/0x18a0 [ 3624.413039][ T253] worker_thread+0x587/0xd30 [ 3624.413039][ T253] kthread+0x28a/0x350 [ 3624.413039][ T253] ret_from_fork+0x31/0x70 [ 3624.413039][ T253] ret_from_fork_asm+0x1a/0x30 [ 3624.413039][ T253] [ 3624.415174][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3624.415174][ T253] netdev_get_by_index+0x5e/0x80 [ 3624.415174][ T253] fib6_nh_init+0x3d8/0x1580 [ 3624.415174][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3624.415174][ T253] ip6_route_add+0x1c/0x140 [ 3624.415174][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3624.415174][ T253] inet6_addr_add+0x4f8/0xa40 [ 3624.415174][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3624.415174][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3624.415174][ T253] netlink_rcv_skb+0x130/0x360 [ 3624.415174][ T253] netlink_unicast+0x449/0x710 [ 3624.415174][ T253] netlink_sendmsg+0x723/0xbe0 [ 3624.415174][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3624.415174][ T253] ___sys_sendmsg+0xee/0x170 [ 3624.415174][ T253] __sys_sendmsg+0xcd/0x170 [ 3624.415174][ T253] do_syscall_64+0xc6/0x1e0 [ 3624.415174][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3624.415174][ T253] [ 3624.417409][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3624.417409][ T253] netdev_get_by_index+0x5e/0x80 [ 3624.417409][ T253] fib6_nh_init+0x3d8/0x1580 [ 3624.417409][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3624.417409][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3624.417409][ T253] ipv6_add_addr+0x411/0x2000 [ 3624.417409][ T253] inet6_addr_add+0x30e/0xa40 [ 3624.417409][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3624.417409][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3624.417409][ T253] netlink_rcv_skb+0x130/0x360 [ 3624.417409][ T253] netlink_unicast+0x449/0x710 [ 3624.417409][ T253] netlink_sendmsg+0x723/0xbe0 [ 3624.417409][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3624.417409][ T253] ___sys_sendmsg+0xee/0x170 [ 3624.417409][ T253] __sys_sendmsg+0xcd/0x170 [ 3624.417409][ T253] do_syscall_64+0xc6/0x1e0 [ 3624.417409][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3624.417409][ T253] [ 3624.419646][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3624.419646][ T253] netdev_get_by_index+0x5e/0x80 [ 3624.419646][ T253] fib6_nh_init+0x3d8/0x1580 [ 3624.419646][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3624.419646][ T253] ip6_route_add+0x1c/0x140 [ 3624.419646][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3624.419646][ T253] addrconf_add_dev+0xe2/0x170 [ 3624.419646][ T253] inet6_addr_add+0x12f/0xa40 [ 3624.419646][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3624.419646][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3624.419646][ T253] netlink_rcv_skb+0x130/0x360 [ 3624.419646][ T253] netlink_unicast+0x449/0x710 [ 3624.419646][ T253] netlink_sendmsg+0x723/0xbe0 [ 3624.419646][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3624.419646][ T253] ___sys_sendmsg+0xee/0x170 [ 3624.419646][ T253] __sys_sendmsg+0xcd/0x170 [ 3624.419646][ T253] do_syscall_64+0xc6/0x1e0 [ 3624.419646][ T253] [ 3624.421842][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3624.421842][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3624.421842][ T253] ipv6_find_idev+0x102/0x170 [ 3624.421842][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3624.421842][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3624.421842][ T253] netlink_rcv_skb+0x130/0x360 [ 3624.421842][ T253] netlink_unicast+0x449/0x710 [ 3624.421842][ T253] netlink_sendmsg+0x723/0xbe0 [ 3624.421842][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3624.421842][ T253] ___sys_sendmsg+0xee/0x170 [ 3624.421842][ T253] __sys_sendmsg+0xcd/0x170 [ 3624.421842][ T253] do_syscall_64+0xc6/0x1e0 [ 3624.421842][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3624.421842][ T253] [ 3624.423569][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3624.423569][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3624.423569][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3624.423569][ T253] ipv6_find_idev+0x102/0x170 [ 3624.423569][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3624.423569][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3624.423569][ T253] netlink_rcv_skb+0x130/0x360 [ 3624.423569][ T253] netlink_unicast+0x449/0x710 [ 3624.423569][ T253] netlink_sendmsg+0x723/0xbe0 [ 3624.423569][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3624.423569][ T253] ___sys_sendmsg+0xee/0x170 [ 3624.423569][ T253] __sys_sendmsg+0xcd/0x170 [ 3624.423569][ T253] do_syscall_64+0xc6/0x1e0 [ 3624.423569][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3624.423569][ T253] [ 3634.674381][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3634.674873][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3634.674873][ T253] dst_init+0x84/0x4a0 [ 3634.674873][ T253] dst_alloc+0x97/0x150 [ 3634.674873][ T253] ip6_dst_alloc+0x23/0x90 [ 3634.674873][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3634.674873][ T253] ip6_pol_route+0x56f/0x840 [ 3634.674873][ T253] fib6_rule_lookup+0x334/0x630 [ 3634.674873][ T253] ip6_route_output_flags+0x259/0x480 [ 3634.674873][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3634.674873][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3634.674873][ T253] netlink_rcv_skb+0x130/0x360 [ 3634.674873][ T253] netlink_unicast+0x449/0x710 [ 3634.674873][ T253] netlink_sendmsg+0x723/0xbe0 [ 3634.674873][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3634.674873][ T253] ___sys_sendmsg+0xee/0x170 [ 3634.674873][ T253] __sys_sendmsg+0xcd/0x170 [ 3634.674873][ T253] do_syscall_64+0xc6/0x1e0 [ 3634.674873][ T253] [ 3634.677067][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3634.677067][ T253] netdev_get_by_index+0x5e/0x80 [ 3634.677067][ T253] fib6_nh_init+0x3d8/0x1580 [ 3634.677067][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3634.677067][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3634.677067][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3634.677067][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3634.677067][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3634.677067][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3634.677067][ T253] addrconf_dad_begin+0x310/0x670 [ 3634.677067][ T253] addrconf_dad_work+0x10b/0xab0 [ 3634.677067][ T253] process_one_work+0x84d/0x18a0 [ 3634.677067][ T253] worker_thread+0x587/0xd30 [ 3634.677067][ T253] kthread+0x28a/0x350 [ 3634.677067][ T253] ret_from_fork+0x31/0x70 [ 3634.677067][ T253] ret_from_fork_asm+0x1a/0x30 [ 3634.677067][ T253] [ 3634.679208][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3634.679208][ T253] netdev_get_by_index+0x5e/0x80 [ 3634.679208][ T253] fib6_nh_init+0x3d8/0x1580 [ 3634.679208][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3634.679208][ T253] ip6_route_add+0x1c/0x140 [ 3634.679208][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3634.679208][ T253] inet6_addr_add+0x4f8/0xa40 [ 3634.679208][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3634.679208][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3634.679208][ T253] netlink_rcv_skb+0x130/0x360 [ 3634.679208][ T253] netlink_unicast+0x449/0x710 [ 3634.679208][ T253] netlink_sendmsg+0x723/0xbe0 [ 3634.679208][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3634.679208][ T253] ___sys_sendmsg+0xee/0x170 [ 3634.679208][ T253] __sys_sendmsg+0xcd/0x170 [ 3634.679208][ T253] do_syscall_64+0xc6/0x1e0 [ 3634.679208][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3634.679208][ T253] [ 3634.681449][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3634.681449][ T253] netdev_get_by_index+0x5e/0x80 [ 3634.681449][ T253] fib6_nh_init+0x3d8/0x1580 [ 3634.681449][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3634.681449][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3634.681449][ T253] ipv6_add_addr+0x411/0x2000 [ 3634.681449][ T253] inet6_addr_add+0x30e/0xa40 [ 3634.681449][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3634.681449][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3634.681449][ T253] netlink_rcv_skb+0x130/0x360 [ 3634.681449][ T253] netlink_unicast+0x449/0x710 [ 3634.681449][ T253] netlink_sendmsg+0x723/0xbe0 [ 3634.681449][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3634.681449][ T253] ___sys_sendmsg+0xee/0x170 [ 3634.681449][ T253] __sys_sendmsg+0xcd/0x170 [ 3634.681449][ T253] do_syscall_64+0xc6/0x1e0 [ 3634.681449][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3634.681449][ T253] [ 3634.683707][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3634.683707][ T253] netdev_get_by_index+0x5e/0x80 [ 3634.683707][ T253] fib6_nh_init+0x3d8/0x1580 [ 3634.683707][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3634.683707][ T253] ip6_route_add+0x1c/0x140 [ 3634.683707][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3634.683707][ T253] addrconf_add_dev+0xe2/0x170 [ 3634.683707][ T253] inet6_addr_add+0x12f/0xa40 [ 3634.683707][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3634.683707][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3634.683707][ T253] netlink_rcv_skb+0x130/0x360 [ 3634.683707][ T253] netlink_unicast+0x449/0x710 [ 3634.683707][ T253] netlink_sendmsg+0x723/0xbe0 [ 3634.683707][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3634.683707][ T253] ___sys_sendmsg+0xee/0x170 [ 3634.683707][ T253] __sys_sendmsg+0xcd/0x170 [ 3634.683707][ T253] do_syscall_64+0xc6/0x1e0 [ 3634.683707][ T253] [ 3634.685907][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3634.685907][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3634.685907][ T253] ipv6_find_idev+0x102/0x170 [ 3634.685907][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3634.685907][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3634.685907][ T253] netlink_rcv_skb+0x130/0x360 [ 3634.685907][ T253] netlink_unicast+0x449/0x710 [ 3634.685907][ T253] netlink_sendmsg+0x723/0xbe0 [ 3634.685907][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3634.685907][ T253] ___sys_sendmsg+0xee/0x170 [ 3634.685907][ T253] __sys_sendmsg+0xcd/0x170 [ 3634.685907][ T253] do_syscall_64+0xc6/0x1e0 [ 3634.685907][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3634.685907][ T253] [ 3634.687625][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3634.687625][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3634.687625][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3634.687625][ T253] ipv6_find_idev+0x102/0x170 [ 3634.687625][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3634.687625][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3634.687625][ T253] netlink_rcv_skb+0x130/0x360 [ 3634.687625][ T253] netlink_unicast+0x449/0x710 [ 3634.687625][ T253] netlink_sendmsg+0x723/0xbe0 [ 3634.687625][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3634.687625][ T253] ___sys_sendmsg+0xee/0x170 [ 3634.687625][ T253] __sys_sendmsg+0xcd/0x170 [ 3634.687625][ T253] do_syscall_64+0xc6/0x1e0 [ 3634.687625][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3634.687625][ T253] [ 3644.938316][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3644.938720][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3644.938720][ T253] dst_init+0x84/0x4a0 [ 3644.938720][ T253] dst_alloc+0x97/0x150 [ 3644.938720][ T253] ip6_dst_alloc+0x23/0x90 [ 3644.938720][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3644.938720][ T253] ip6_pol_route+0x56f/0x840 [ 3644.938720][ T253] fib6_rule_lookup+0x334/0x630 [ 3644.938720][ T253] ip6_route_output_flags+0x259/0x480 [ 3644.938720][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3644.938720][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3644.938720][ T253] netlink_rcv_skb+0x130/0x360 [ 3644.938720][ T253] netlink_unicast+0x449/0x710 [ 3644.938720][ T253] netlink_sendmsg+0x723/0xbe0 [ 3644.938720][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3644.938720][ T253] ___sys_sendmsg+0xee/0x170 [ 3644.938720][ T253] __sys_sendmsg+0xcd/0x170 [ 3644.938720][ T253] do_syscall_64+0xc6/0x1e0 [ 3644.938720][ T253] [ 3644.941250][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3644.941250][ T253] netdev_get_by_index+0x5e/0x80 [ 3644.941250][ T253] fib6_nh_init+0x3d8/0x1580 [ 3644.941250][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3644.941250][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3644.941250][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3644.941250][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3644.941250][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3644.941250][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3644.941250][ T253] addrconf_dad_begin+0x310/0x670 [ 3644.941250][ T253] addrconf_dad_work+0x10b/0xab0 [ 3644.941250][ T253] process_one_work+0x84d/0x18a0 [ 3644.941250][ T253] worker_thread+0x587/0xd30 [ 3644.941250][ T253] kthread+0x28a/0x350 [ 3644.941250][ T253] ret_from_fork+0x31/0x70 [ 3644.941250][ T253] ret_from_fork_asm+0x1a/0x30 [ 3644.941250][ T253] [ 3644.943878][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3644.943878][ T253] netdev_get_by_index+0x5e/0x80 [ 3644.943878][ T253] fib6_nh_init+0x3d8/0x1580 [ 3644.943878][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3644.943878][ T253] ip6_route_add+0x1c/0x140 [ 3644.943878][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3644.943878][ T253] inet6_addr_add+0x4f8/0xa40 [ 3644.943878][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3644.943878][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3644.943878][ T253] netlink_rcv_skb+0x130/0x360 [ 3644.943878][ T253] netlink_unicast+0x449/0x710 [ 3644.943878][ T253] netlink_sendmsg+0x723/0xbe0 [ 3644.943878][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3644.943878][ T253] ___sys_sendmsg+0xee/0x170 [ 3644.943878][ T253] __sys_sendmsg+0xcd/0x170 [ 3644.943878][ T253] do_syscall_64+0xc6/0x1e0 [ 3644.943878][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3644.943878][ T253] [ 3644.946598][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3644.946598][ T253] netdev_get_by_index+0x5e/0x80 [ 3644.946598][ T253] fib6_nh_init+0x3d8/0x1580 [ 3644.946598][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3644.946598][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3644.946598][ T253] ipv6_add_addr+0x411/0x2000 [ 3644.946598][ T253] inet6_addr_add+0x30e/0xa40 [ 3644.946598][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3644.946598][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3644.946598][ T253] netlink_rcv_skb+0x130/0x360 [ 3644.946598][ T253] netlink_unicast+0x449/0x710 [ 3644.946598][ T253] netlink_sendmsg+0x723/0xbe0 [ 3644.946598][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3644.946598][ T253] ___sys_sendmsg+0xee/0x170 [ 3644.946598][ T253] __sys_sendmsg+0xcd/0x170 [ 3644.946598][ T253] do_syscall_64+0xc6/0x1e0 [ 3644.946598][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3644.946598][ T253] [ 3644.949301][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3644.949301][ T253] netdev_get_by_index+0x5e/0x80 [ 3644.949301][ T253] fib6_nh_init+0x3d8/0x1580 [ 3644.949301][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3644.949301][ T253] ip6_route_add+0x1c/0x140 [ 3644.949301][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3644.949301][ T253] addrconf_add_dev+0xe2/0x170 [ 3644.949301][ T253] inet6_addr_add+0x12f/0xa40 [ 3644.949301][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3644.949301][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3644.949301][ T253] netlink_rcv_skb+0x130/0x360 [ 3644.949301][ T253] netlink_unicast+0x449/0x710 [ 3644.949301][ T253] netlink_sendmsg+0x723/0xbe0 [ 3644.949301][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3644.949301][ T253] ___sys_sendmsg+0xee/0x170 [ 3644.949301][ T253] __sys_sendmsg+0xcd/0x170 [ 3644.949301][ T253] do_syscall_64+0xc6/0x1e0 [ 3644.949301][ T253] [ 3644.951980][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3644.951980][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3644.951980][ T253] ipv6_find_idev+0x102/0x170 [ 3644.951980][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3644.951980][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3644.951980][ T253] netlink_rcv_skb+0x130/0x360 [ 3644.951980][ T253] netlink_unicast+0x449/0x710 [ 3644.951980][ T253] netlink_sendmsg+0x723/0xbe0 [ 3644.951980][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3644.951980][ T253] ___sys_sendmsg+0xee/0x170 [ 3644.951980][ T253] __sys_sendmsg+0xcd/0x170 [ 3644.951980][ T253] do_syscall_64+0xc6/0x1e0 [ 3644.951980][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3644.951980][ T253] [ 3644.954085][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3644.954085][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3644.954085][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3644.954085][ T253] ipv6_find_idev+0x102/0x170 [ 3644.954085][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3644.954085][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3644.954085][ T253] netlink_rcv_skb+0x130/0x360 [ 3644.954085][ T253] netlink_unicast+0x449/0x710 [ 3644.954085][ T253] netlink_sendmsg+0x723/0xbe0 [ 3644.954085][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3644.954085][ T253] ___sys_sendmsg+0xee/0x170 [ 3644.954085][ T253] __sys_sendmsg+0xcd/0x170 [ 3644.954085][ T253] do_syscall_64+0xc6/0x1e0 [ 3644.954085][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3644.954085][ T253] [ 3655.202349][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3655.202834][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3655.202834][ T253] dst_init+0x84/0x4a0 [ 3655.202834][ T253] dst_alloc+0x97/0x150 [ 3655.202834][ T253] ip6_dst_alloc+0x23/0x90 [ 3655.202834][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3655.202834][ T253] ip6_pol_route+0x56f/0x840 [ 3655.202834][ T253] fib6_rule_lookup+0x334/0x630 [ 3655.202834][ T253] ip6_route_output_flags+0x259/0x480 [ 3655.202834][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3655.202834][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3655.202834][ T253] netlink_rcv_skb+0x130/0x360 [ 3655.202834][ T253] netlink_unicast+0x449/0x710 [ 3655.202834][ T253] netlink_sendmsg+0x723/0xbe0 [ 3655.202834][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3655.202834][ T253] ___sys_sendmsg+0xee/0x170 [ 3655.202834][ T253] __sys_sendmsg+0xcd/0x170 [ 3655.202834][ T253] do_syscall_64+0xc6/0x1e0 [ 3655.202834][ T253] [ 3655.205032][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3655.205032][ T253] netdev_get_by_index+0x5e/0x80 [ 3655.205032][ T253] fib6_nh_init+0x3d8/0x1580 [ 3655.205032][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3655.205032][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3655.205032][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3655.205032][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3655.205032][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3655.205032][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3655.205032][ T253] addrconf_dad_begin+0x310/0x670 [ 3655.205032][ T253] addrconf_dad_work+0x10b/0xab0 [ 3655.205032][ T253] process_one_work+0x84d/0x18a0 [ 3655.205032][ T253] worker_thread+0x587/0xd30 [ 3655.205032][ T253] kthread+0x28a/0x350 [ 3655.205032][ T253] ret_from_fork+0x31/0x70 [ 3655.205032][ T253] ret_from_fork_asm+0x1a/0x30 [ 3655.205032][ T253] [ 3655.207178][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3655.207178][ T253] netdev_get_by_index+0x5e/0x80 [ 3655.207178][ T253] fib6_nh_init+0x3d8/0x1580 [ 3655.207178][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3655.207178][ T253] ip6_route_add+0x1c/0x140 [ 3655.207178][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3655.207178][ T253] inet6_addr_add+0x4f8/0xa40 [ 3655.207178][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3655.207178][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3655.207178][ T253] netlink_rcv_skb+0x130/0x360 [ 3655.207178][ T253] netlink_unicast+0x449/0x710 [ 3655.207178][ T253] netlink_sendmsg+0x723/0xbe0 [ 3655.207178][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3655.207178][ T253] ___sys_sendmsg+0xee/0x170 [ 3655.207178][ T253] __sys_sendmsg+0xcd/0x170 [ 3655.207178][ T253] do_syscall_64+0xc6/0x1e0 [ 3655.207178][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3655.207178][ T253] [ 3655.209432][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3655.209432][ T253] netdev_get_by_index+0x5e/0x80 [ 3655.209432][ T253] fib6_nh_init+0x3d8/0x1580 [ 3655.209432][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3655.209432][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3655.209432][ T253] ipv6_add_addr+0x411/0x2000 [ 3655.209432][ T253] inet6_addr_add+0x30e/0xa40 [ 3655.209432][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3655.209432][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3655.209432][ T253] netlink_rcv_skb+0x130/0x360 [ 3655.209432][ T253] netlink_unicast+0x449/0x710 [ 3655.209432][ T253] netlink_sendmsg+0x723/0xbe0 [ 3655.209432][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3655.209432][ T253] ___sys_sendmsg+0xee/0x170 [ 3655.209432][ T253] __sys_sendmsg+0xcd/0x170 [ 3655.209432][ T253] do_syscall_64+0xc6/0x1e0 [ 3655.209432][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3655.209432][ T253] [ 3655.211669][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3655.211669][ T253] netdev_get_by_index+0x5e/0x80 [ 3655.211669][ T253] fib6_nh_init+0x3d8/0x1580 [ 3655.211669][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3655.211669][ T253] ip6_route_add+0x1c/0x140 [ 3655.211669][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3655.211669][ T253] addrconf_add_dev+0xe2/0x170 [ 3655.211669][ T253] inet6_addr_add+0x12f/0xa40 [ 3655.211669][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3655.211669][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3655.211669][ T253] netlink_rcv_skb+0x130/0x360 [ 3655.211669][ T253] netlink_unicast+0x449/0x710 [ 3655.211669][ T253] netlink_sendmsg+0x723/0xbe0 [ 3655.211669][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3655.211669][ T253] ___sys_sendmsg+0xee/0x170 [ 3655.211669][ T253] __sys_sendmsg+0xcd/0x170 [ 3655.211669][ T253] do_syscall_64+0xc6/0x1e0 [ 3655.211669][ T253] [ 3655.213894][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3655.213894][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3655.213894][ T253] ipv6_find_idev+0x102/0x170 [ 3655.213894][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3655.213894][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3655.213894][ T253] netlink_rcv_skb+0x130/0x360 [ 3655.213894][ T253] netlink_unicast+0x449/0x710 [ 3655.213894][ T253] netlink_sendmsg+0x723/0xbe0 [ 3655.213894][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3655.213894][ T253] ___sys_sendmsg+0xee/0x170 [ 3655.213894][ T253] __sys_sendmsg+0xcd/0x170 [ 3655.213894][ T253] do_syscall_64+0xc6/0x1e0 [ 3655.213894][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3655.213894][ T253] [ 3655.215619][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3655.215619][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3655.215619][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3655.215619][ T253] ipv6_find_idev+0x102/0x170 [ 3655.215619][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3655.215619][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3655.215619][ T253] netlink_rcv_skb+0x130/0x360 [ 3655.215619][ T253] netlink_unicast+0x449/0x710 [ 3655.215619][ T253] netlink_sendmsg+0x723/0xbe0 [ 3655.215619][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3655.215619][ T253] ___sys_sendmsg+0xee/0x170 [ 3655.215619][ T253] __sys_sendmsg+0xcd/0x170 [ 3655.215619][ T253] do_syscall_64+0xc6/0x1e0 [ 3655.215619][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3655.215619][ T253] [ 3665.466299][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3665.466787][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3665.466787][ T253] dst_init+0x84/0x4a0 [ 3665.466787][ T253] dst_alloc+0x97/0x150 [ 3665.466787][ T253] ip6_dst_alloc+0x23/0x90 [ 3665.466787][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3665.466787][ T253] ip6_pol_route+0x56f/0x840 [ 3665.466787][ T253] fib6_rule_lookup+0x334/0x630 [ 3665.466787][ T253] ip6_route_output_flags+0x259/0x480 [ 3665.466787][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3665.466787][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3665.466787][ T253] netlink_rcv_skb+0x130/0x360 [ 3665.466787][ T253] netlink_unicast+0x449/0x710 [ 3665.466787][ T253] netlink_sendmsg+0x723/0xbe0 [ 3665.466787][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3665.466787][ T253] ___sys_sendmsg+0xee/0x170 [ 3665.466787][ T253] __sys_sendmsg+0xcd/0x170 [ 3665.466787][ T253] do_syscall_64+0xc6/0x1e0 [ 3665.466787][ T253] [ 3665.468982][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3665.468982][ T253] netdev_get_by_index+0x5e/0x80 [ 3665.468982][ T253] fib6_nh_init+0x3d8/0x1580 [ 3665.468982][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3665.468982][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3665.468982][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3665.468982][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3665.468982][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3665.468982][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3665.468982][ T253] addrconf_dad_begin+0x310/0x670 [ 3665.468982][ T253] addrconf_dad_work+0x10b/0xab0 [ 3665.468982][ T253] process_one_work+0x84d/0x18a0 [ 3665.468982][ T253] worker_thread+0x587/0xd30 [ 3665.468982][ T253] kthread+0x28a/0x350 [ 3665.468982][ T253] ret_from_fork+0x31/0x70 [ 3665.468982][ T253] ret_from_fork_asm+0x1a/0x30 [ 3665.468982][ T253] [ 3665.471122][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3665.471122][ T253] netdev_get_by_index+0x5e/0x80 [ 3665.471122][ T253] fib6_nh_init+0x3d8/0x1580 [ 3665.471122][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3665.471122][ T253] ip6_route_add+0x1c/0x140 [ 3665.471122][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3665.471122][ T253] inet6_addr_add+0x4f8/0xa40 [ 3665.471122][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3665.471122][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3665.471122][ T253] netlink_rcv_skb+0x130/0x360 [ 3665.471122][ T253] netlink_unicast+0x449/0x710 [ 3665.471122][ T253] netlink_sendmsg+0x723/0xbe0 [ 3665.471122][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3665.471122][ T253] ___sys_sendmsg+0xee/0x170 [ 3665.471122][ T253] __sys_sendmsg+0xcd/0x170 [ 3665.471122][ T253] do_syscall_64+0xc6/0x1e0 [ 3665.471122][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3665.471122][ T253] [ 3665.473365][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3665.473365][ T253] netdev_get_by_index+0x5e/0x80 [ 3665.473365][ T253] fib6_nh_init+0x3d8/0x1580 [ 3665.473365][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3665.473365][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3665.473365][ T253] ipv6_add_addr+0x411/0x2000 [ 3665.473365][ T253] inet6_addr_add+0x30e/0xa40 [ 3665.473365][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3665.473365][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3665.473365][ T253] netlink_rcv_skb+0x130/0x360 [ 3665.473365][ T253] netlink_unicast+0x449/0x710 [ 3665.473365][ T253] netlink_sendmsg+0x723/0xbe0 [ 3665.473365][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3665.473365][ T253] ___sys_sendmsg+0xee/0x170 [ 3665.473365][ T253] __sys_sendmsg+0xcd/0x170 [ 3665.473365][ T253] do_syscall_64+0xc6/0x1e0 [ 3665.473365][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3665.473365][ T253] [ 3665.475610][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3665.475610][ T253] netdev_get_by_index+0x5e/0x80 [ 3665.475610][ T253] fib6_nh_init+0x3d8/0x1580 [ 3665.475610][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3665.475610][ T253] ip6_route_add+0x1c/0x140 [ 3665.475610][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3665.475610][ T253] addrconf_add_dev+0xe2/0x170 [ 3665.475610][ T253] inet6_addr_add+0x12f/0xa40 [ 3665.475610][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3665.475610][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3665.475610][ T253] netlink_rcv_skb+0x130/0x360 [ 3665.475610][ T253] netlink_unicast+0x449/0x710 [ 3665.475610][ T253] netlink_sendmsg+0x723/0xbe0 [ 3665.475610][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3665.475610][ T253] ___sys_sendmsg+0xee/0x170 [ 3665.475610][ T253] __sys_sendmsg+0xcd/0x170 [ 3665.475610][ T253] do_syscall_64+0xc6/0x1e0 [ 3665.475610][ T253] [ 3665.477806][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3665.477806][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3665.477806][ T253] ipv6_find_idev+0x102/0x170 [ 3665.477806][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3665.477806][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3665.477806][ T253] netlink_rcv_skb+0x130/0x360 [ 3665.477806][ T253] netlink_unicast+0x449/0x710 [ 3665.477806][ T253] netlink_sendmsg+0x723/0xbe0 [ 3665.477806][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3665.477806][ T253] ___sys_sendmsg+0xee/0x170 [ 3665.477806][ T253] __sys_sendmsg+0xcd/0x170 [ 3665.477806][ T253] do_syscall_64+0xc6/0x1e0 [ 3665.477806][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3665.477806][ T253] [ 3665.479526][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3665.479526][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3665.479526][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3665.479526][ T253] ipv6_find_idev+0x102/0x170 [ 3665.479526][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3665.479526][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3665.479526][ T253] netlink_rcv_skb+0x130/0x360 [ 3665.479526][ T253] netlink_unicast+0x449/0x710 [ 3665.479526][ T253] netlink_sendmsg+0x723/0xbe0 [ 3665.479526][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3665.479526][ T253] ___sys_sendmsg+0xee/0x170 [ 3665.479526][ T253] __sys_sendmsg+0xcd/0x170 [ 3665.479526][ T253] do_syscall_64+0xc6/0x1e0 [ 3665.479526][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3665.479526][ T253] [ 3675.730316][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3675.730792][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3675.730792][ T253] dst_init+0x84/0x4a0 [ 3675.730792][ T253] dst_alloc+0x97/0x150 [ 3675.730792][ T253] ip6_dst_alloc+0x23/0x90 [ 3675.730792][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3675.730792][ T253] ip6_pol_route+0x56f/0x840 [ 3675.730792][ T253] fib6_rule_lookup+0x334/0x630 [ 3675.730792][ T253] ip6_route_output_flags+0x259/0x480 [ 3675.730792][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3675.730792][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3675.730792][ T253] netlink_rcv_skb+0x130/0x360 [ 3675.730792][ T253] netlink_unicast+0x449/0x710 [ 3675.730792][ T253] netlink_sendmsg+0x723/0xbe0 [ 3675.730792][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3675.730792][ T253] ___sys_sendmsg+0xee/0x170 [ 3675.730792][ T253] __sys_sendmsg+0xcd/0x170 [ 3675.730792][ T253] do_syscall_64+0xc6/0x1e0 [ 3675.730792][ T253] [ 3675.733016][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3675.733016][ T253] netdev_get_by_index+0x5e/0x80 [ 3675.733016][ T253] fib6_nh_init+0x3d8/0x1580 [ 3675.733016][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3675.733016][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3675.733016][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3675.733016][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3675.733016][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3675.733016][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3675.733016][ T253] addrconf_dad_begin+0x310/0x670 [ 3675.733016][ T253] addrconf_dad_work+0x10b/0xab0 [ 3675.733016][ T253] process_one_work+0x84d/0x18a0 [ 3675.733016][ T253] worker_thread+0x587/0xd30 [ 3675.733016][ T253] kthread+0x28a/0x350 [ 3675.733016][ T253] ret_from_fork+0x31/0x70 [ 3675.733016][ T253] ret_from_fork_asm+0x1a/0x30 [ 3675.733016][ T253] [ 3675.735161][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3675.735161][ T253] netdev_get_by_index+0x5e/0x80 [ 3675.735161][ T253] fib6_nh_init+0x3d8/0x1580 [ 3675.735161][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3675.735161][ T253] ip6_route_add+0x1c/0x140 [ 3675.735161][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3675.735161][ T253] inet6_addr_add+0x4f8/0xa40 [ 3675.735161][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3675.735161][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3675.735161][ T253] netlink_rcv_skb+0x130/0x360 [ 3675.735161][ T253] netlink_unicast+0x449/0x710 [ 3675.735161][ T253] netlink_sendmsg+0x723/0xbe0 [ 3675.735161][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3675.735161][ T253] ___sys_sendmsg+0xee/0x170 [ 3675.735161][ T253] __sys_sendmsg+0xcd/0x170 [ 3675.735161][ T253] do_syscall_64+0xc6/0x1e0 [ 3675.735161][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3675.735161][ T253] [ 3675.737911][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3675.737911][ T253] netdev_get_by_index+0x5e/0x80 [ 3675.737911][ T253] fib6_nh_init+0x3d8/0x1580 [ 3675.737911][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3675.737911][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3675.737911][ T253] ipv6_add_addr+0x411/0x2000 [ 3675.737911][ T253] inet6_addr_add+0x30e/0xa40 [ 3675.737911][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3675.737911][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3675.737911][ T253] netlink_rcv_skb+0x130/0x360 [ 3675.737911][ T253] netlink_unicast+0x449/0x710 [ 3675.737911][ T253] netlink_sendmsg+0x723/0xbe0 [ 3675.737911][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3675.737911][ T253] ___sys_sendmsg+0xee/0x170 [ 3675.737911][ T253] __sys_sendmsg+0xcd/0x170 [ 3675.737911][ T253] do_syscall_64+0xc6/0x1e0 [ 3675.737911][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3675.737911][ T253] [ 3675.740145][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3675.740145][ T253] netdev_get_by_index+0x5e/0x80 [ 3675.740145][ T253] fib6_nh_init+0x3d8/0x1580 [ 3675.740145][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3675.740145][ T253] ip6_route_add+0x1c/0x140 [ 3675.740145][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3675.740145][ T253] addrconf_add_dev+0xe2/0x170 [ 3675.740145][ T253] inet6_addr_add+0x12f/0xa40 [ 3675.740145][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3675.740145][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3675.740145][ T253] netlink_rcv_skb+0x130/0x360 [ 3675.740145][ T253] netlink_unicast+0x449/0x710 [ 3675.740145][ T253] netlink_sendmsg+0x723/0xbe0 [ 3675.740145][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3675.740145][ T253] ___sys_sendmsg+0xee/0x170 [ 3675.740145][ T253] __sys_sendmsg+0xcd/0x170 [ 3675.740145][ T253] do_syscall_64+0xc6/0x1e0 [ 3675.740145][ T253] [ 3675.742345][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3675.742345][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3675.742345][ T253] ipv6_find_idev+0x102/0x170 [ 3675.742345][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3675.742345][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3675.742345][ T253] netlink_rcv_skb+0x130/0x360 [ 3675.742345][ T253] netlink_unicast+0x449/0x710 [ 3675.742345][ T253] netlink_sendmsg+0x723/0xbe0 [ 3675.742345][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3675.742345][ T253] ___sys_sendmsg+0xee/0x170 [ 3675.742345][ T253] __sys_sendmsg+0xcd/0x170 [ 3675.742345][ T253] do_syscall_64+0xc6/0x1e0 [ 3675.742345][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3675.742345][ T253] [ 3675.744069][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3675.744069][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3675.744069][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3675.744069][ T253] ipv6_find_idev+0x102/0x170 [ 3675.744069][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3675.744069][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3675.744069][ T253] netlink_rcv_skb+0x130/0x360 [ 3675.744069][ T253] netlink_unicast+0x449/0x710 [ 3675.744069][ T253] netlink_sendmsg+0x723/0xbe0 [ 3675.744069][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3675.744069][ T253] ___sys_sendmsg+0xee/0x170 [ 3675.744069][ T253] __sys_sendmsg+0xcd/0x170 [ 3675.744069][ T253] do_syscall_64+0xc6/0x1e0 [ 3675.744069][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3675.744069][ T253] [ 3685.994314][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3685.994729][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3685.994729][ T253] dst_init+0x84/0x4a0 [ 3685.994729][ T253] dst_alloc+0x97/0x150 [ 3685.994729][ T253] ip6_dst_alloc+0x23/0x90 [ 3685.994729][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3685.994729][ T253] ip6_pol_route+0x56f/0x840 [ 3685.994729][ T253] fib6_rule_lookup+0x334/0x630 [ 3685.994729][ T253] ip6_route_output_flags+0x259/0x480 [ 3685.994729][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3685.994729][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3685.994729][ T253] netlink_rcv_skb+0x130/0x360 [ 3685.994729][ T253] netlink_unicast+0x449/0x710 [ 3685.994729][ T253] netlink_sendmsg+0x723/0xbe0 [ 3685.994729][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3685.994729][ T253] ___sys_sendmsg+0xee/0x170 [ 3685.994729][ T253] __sys_sendmsg+0xcd/0x170 [ 3685.994729][ T253] do_syscall_64+0xc6/0x1e0 [ 3685.994729][ T253] [ 3685.996934][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3685.996934][ T253] netdev_get_by_index+0x5e/0x80 [ 3685.996934][ T253] fib6_nh_init+0x3d8/0x1580 [ 3685.996934][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3685.996934][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3685.996934][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3685.996934][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3685.996934][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3685.996934][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3685.996934][ T253] addrconf_dad_begin+0x310/0x670 [ 3685.996934][ T253] addrconf_dad_work+0x10b/0xab0 [ 3685.996934][ T253] process_one_work+0x84d/0x18a0 [ 3685.996934][ T253] worker_thread+0x587/0xd30 [ 3685.996934][ T253] kthread+0x28a/0x350 [ 3685.996934][ T253] ret_from_fork+0x31/0x70 [ 3685.996934][ T253] ret_from_fork_asm+0x1a/0x30 [ 3685.996934][ T253] [ 3685.999246][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3685.999246][ T253] netdev_get_by_index+0x5e/0x80 [ 3685.999246][ T253] fib6_nh_init+0x3d8/0x1580 [ 3685.999246][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3685.999246][ T253] ip6_route_add+0x1c/0x140 [ 3685.999246][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3685.999246][ T253] inet6_addr_add+0x4f8/0xa40 [ 3685.999246][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3685.999246][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3685.999246][ T253] netlink_rcv_skb+0x130/0x360 [ 3685.999246][ T253] netlink_unicast+0x449/0x710 [ 3685.999246][ T253] netlink_sendmsg+0x723/0xbe0 [ 3685.999246][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3685.999246][ T253] ___sys_sendmsg+0xee/0x170 [ 3685.999246][ T253] __sys_sendmsg+0xcd/0x170 [ 3685.999246][ T253] do_syscall_64+0xc6/0x1e0 [ 3685.999246][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3685.999246][ T253] [ 3686.001529][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3686.001529][ T253] netdev_get_by_index+0x5e/0x80 [ 3686.001529][ T253] fib6_nh_init+0x3d8/0x1580 [ 3686.001529][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3686.001529][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3686.001529][ T253] ipv6_add_addr+0x411/0x2000 [ 3686.001529][ T253] inet6_addr_add+0x30e/0xa40 [ 3686.001529][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3686.001529][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3686.001529][ T253] netlink_rcv_skb+0x130/0x360 [ 3686.001529][ T253] netlink_unicast+0x449/0x710 [ 3686.001529][ T253] netlink_sendmsg+0x723/0xbe0 [ 3686.001529][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3686.001529][ T253] ___sys_sendmsg+0xee/0x170 [ 3686.001529][ T253] __sys_sendmsg+0xcd/0x170 [ 3686.001529][ T253] do_syscall_64+0xc6/0x1e0 [ 3686.001529][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3686.001529][ T253] [ 3686.003817][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3686.003817][ T253] netdev_get_by_index+0x5e/0x80 [ 3686.003817][ T253] fib6_nh_init+0x3d8/0x1580 [ 3686.003817][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3686.003817][ T253] ip6_route_add+0x1c/0x140 [ 3686.003817][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3686.003817][ T253] addrconf_add_dev+0xe2/0x170 [ 3686.003817][ T253] inet6_addr_add+0x12f/0xa40 [ 3686.003817][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3686.003817][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3686.003817][ T253] netlink_rcv_skb+0x130/0x360 [ 3686.003817][ T253] netlink_unicast+0x449/0x710 [ 3686.003817][ T253] netlink_sendmsg+0x723/0xbe0 [ 3686.003817][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3686.003817][ T253] ___sys_sendmsg+0xee/0x170 [ 3686.003817][ T253] __sys_sendmsg+0xcd/0x170 [ 3686.003817][ T253] do_syscall_64+0xc6/0x1e0 [ 3686.003817][ T253] [ 3686.006033][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3686.006033][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3686.006033][ T253] ipv6_find_idev+0x102/0x170 [ 3686.006033][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3686.006033][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3686.006033][ T253] netlink_rcv_skb+0x130/0x360 [ 3686.006033][ T253] netlink_unicast+0x449/0x710 [ 3686.006033][ T253] netlink_sendmsg+0x723/0xbe0 [ 3686.006033][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3686.006033][ T253] ___sys_sendmsg+0xee/0x170 [ 3686.006033][ T253] __sys_sendmsg+0xcd/0x170 [ 3686.006033][ T253] do_syscall_64+0xc6/0x1e0 [ 3686.006033][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3686.006033][ T253] [ 3686.007759][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3686.007759][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3686.007759][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3686.007759][ T253] ipv6_find_idev+0x102/0x170 [ 3686.007759][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3686.007759][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3686.007759][ T253] netlink_rcv_skb+0x130/0x360 [ 3686.007759][ T253] netlink_unicast+0x449/0x710 [ 3686.007759][ T253] netlink_sendmsg+0x723/0xbe0 [ 3686.007759][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3686.007759][ T253] ___sys_sendmsg+0xee/0x170 [ 3686.007759][ T253] __sys_sendmsg+0xcd/0x170 [ 3686.007759][ T253] do_syscall_64+0xc6/0x1e0 [ 3686.007759][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3686.007759][ T253] [ 3696.258340][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3696.258818][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3696.258818][ T253] dst_init+0x84/0x4a0 [ 3696.258818][ T253] dst_alloc+0x97/0x150 [ 3696.258818][ T253] ip6_dst_alloc+0x23/0x90 [ 3696.258818][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3696.258818][ T253] ip6_pol_route+0x56f/0x840 [ 3696.258818][ T253] fib6_rule_lookup+0x334/0x630 [ 3696.258818][ T253] ip6_route_output_flags+0x259/0x480 [ 3696.258818][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3696.258818][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3696.258818][ T253] netlink_rcv_skb+0x130/0x360 [ 3696.258818][ T253] netlink_unicast+0x449/0x710 [ 3696.258818][ T253] netlink_sendmsg+0x723/0xbe0 [ 3696.258818][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3696.258818][ T253] ___sys_sendmsg+0xee/0x170 [ 3696.258818][ T253] __sys_sendmsg+0xcd/0x170 [ 3696.258818][ T253] do_syscall_64+0xc6/0x1e0 [ 3696.258818][ T253] [ 3696.261022][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3696.261022][ T253] netdev_get_by_index+0x5e/0x80 [ 3696.261022][ T253] fib6_nh_init+0x3d8/0x1580 [ 3696.261022][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3696.261022][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3696.261022][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3696.261022][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3696.261022][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3696.261022][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3696.261022][ T253] addrconf_dad_begin+0x310/0x670 [ 3696.261022][ T253] addrconf_dad_work+0x10b/0xab0 [ 3696.261022][ T253] process_one_work+0x84d/0x18a0 [ 3696.261022][ T253] worker_thread+0x587/0xd30 [ 3696.261022][ T253] kthread+0x28a/0x350 [ 3696.261022][ T253] ret_from_fork+0x31/0x70 [ 3696.261022][ T253] ret_from_fork_asm+0x1a/0x30 [ 3696.261022][ T253] [ 3696.263182][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3696.263182][ T253] netdev_get_by_index+0x5e/0x80 [ 3696.263182][ T253] fib6_nh_init+0x3d8/0x1580 [ 3696.263182][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3696.263182][ T253] ip6_route_add+0x1c/0x140 [ 3696.263182][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3696.263182][ T253] inet6_addr_add+0x4f8/0xa40 [ 3696.263182][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3696.263182][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3696.263182][ T253] netlink_rcv_skb+0x130/0x360 [ 3696.263182][ T253] netlink_unicast+0x449/0x710 [ 3696.263182][ T253] netlink_sendmsg+0x723/0xbe0 [ 3696.263182][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3696.263182][ T253] ___sys_sendmsg+0xee/0x170 [ 3696.263182][ T253] __sys_sendmsg+0xcd/0x170 [ 3696.263182][ T253] do_syscall_64+0xc6/0x1e0 [ 3696.263182][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3696.263182][ T253] [ 3696.265425][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3696.265425][ T253] netdev_get_by_index+0x5e/0x80 [ 3696.265425][ T253] fib6_nh_init+0x3d8/0x1580 [ 3696.265425][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3696.265425][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3696.265425][ T253] ipv6_add_addr+0x411/0x2000 [ 3696.265425][ T253] inet6_addr_add+0x30e/0xa40 [ 3696.265425][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3696.265425][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3696.265425][ T253] netlink_rcv_skb+0x130/0x360 [ 3696.265425][ T253] netlink_unicast+0x449/0x710 [ 3696.265425][ T253] netlink_sendmsg+0x723/0xbe0 [ 3696.265425][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3696.265425][ T253] ___sys_sendmsg+0xee/0x170 [ 3696.265425][ T253] __sys_sendmsg+0xcd/0x170 [ 3696.265425][ T253] do_syscall_64+0xc6/0x1e0 [ 3696.265425][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3696.265425][ T253] [ 3696.267771][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3696.267771][ T253] netdev_get_by_index+0x5e/0x80 [ 3696.267771][ T253] fib6_nh_init+0x3d8/0x1580 [ 3696.267771][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3696.267771][ T253] ip6_route_add+0x1c/0x140 [ 3696.267771][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3696.267771][ T253] addrconf_add_dev+0xe2/0x170 [ 3696.267771][ T253] inet6_addr_add+0x12f/0xa40 [ 3696.267771][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3696.267771][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3696.267771][ T253] netlink_rcv_skb+0x130/0x360 [ 3696.267771][ T253] netlink_unicast+0x449/0x710 [ 3696.267771][ T253] netlink_sendmsg+0x723/0xbe0 [ 3696.267771][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3696.267771][ T253] ___sys_sendmsg+0xee/0x170 [ 3696.267771][ T253] __sys_sendmsg+0xcd/0x170 [ 3696.267771][ T253] do_syscall_64+0xc6/0x1e0 [ 3696.267771][ T253] [ 3696.269988][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3696.269988][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3696.269988][ T253] ipv6_find_idev+0x102/0x170 [ 3696.269988][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3696.269988][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3696.269988][ T253] netlink_rcv_skb+0x130/0x360 [ 3696.269988][ T253] netlink_unicast+0x449/0x710 [ 3696.269988][ T253] netlink_sendmsg+0x723/0xbe0 [ 3696.269988][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3696.269988][ T253] ___sys_sendmsg+0xee/0x170 [ 3696.269988][ T253] __sys_sendmsg+0xcd/0x170 [ 3696.269988][ T253] do_syscall_64+0xc6/0x1e0 [ 3696.269988][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3696.269988][ T253] [ 3696.271712][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3696.271712][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3696.271712][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3696.271712][ T253] ipv6_find_idev+0x102/0x170 [ 3696.271712][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3696.271712][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3696.271712][ T253] netlink_rcv_skb+0x130/0x360 [ 3696.271712][ T253] netlink_unicast+0x449/0x710 [ 3696.271712][ T253] netlink_sendmsg+0x723/0xbe0 [ 3696.271712][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3696.271712][ T253] ___sys_sendmsg+0xee/0x170 [ 3696.271712][ T253] __sys_sendmsg+0xcd/0x170 [ 3696.271712][ T253] do_syscall_64+0xc6/0x1e0 [ 3696.271712][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3696.271712][ T253] [ 3706.354239][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3706.354775][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3706.354775][ T253] dst_init+0x84/0x4a0 [ 3706.354775][ T253] dst_alloc+0x97/0x150 [ 3706.354775][ T253] ip6_dst_alloc+0x23/0x90 [ 3706.354775][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3706.354775][ T253] ip6_pol_route+0x56f/0x840 [ 3706.354775][ T253] fib6_rule_lookup+0x334/0x630 [ 3706.354775][ T253] ip6_route_output_flags+0x259/0x480 [ 3706.354775][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3706.354775][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3706.354775][ T253] netlink_rcv_skb+0x130/0x360 [ 3706.354775][ T253] netlink_unicast+0x449/0x710 [ 3706.354775][ T253] netlink_sendmsg+0x723/0xbe0 [ 3706.354775][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3706.354775][ T253] ___sys_sendmsg+0xee/0x170 [ 3706.354775][ T253] __sys_sendmsg+0xcd/0x170 [ 3706.354775][ T253] do_syscall_64+0xc6/0x1e0 [ 3706.354775][ T253] [ 3706.356968][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3706.356968][ T253] netdev_get_by_index+0x5e/0x80 [ 3706.356968][ T253] fib6_nh_init+0x3d8/0x1580 [ 3706.356968][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3706.356968][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3706.356968][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3706.356968][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3706.356968][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3706.356968][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3706.356968][ T253] addrconf_dad_begin+0x310/0x670 [ 3706.356968][ T253] addrconf_dad_work+0x10b/0xab0 [ 3706.356968][ T253] process_one_work+0x84d/0x18a0 [ 3706.356968][ T253] worker_thread+0x587/0xd30 [ 3706.356968][ T253] kthread+0x28a/0x350 [ 3706.356968][ T253] ret_from_fork+0x31/0x70 [ 3706.356968][ T253] ret_from_fork_asm+0x1a/0x30 [ 3706.356968][ T253] [ 3706.359108][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3706.359108][ T253] netdev_get_by_index+0x5e/0x80 [ 3706.359108][ T253] fib6_nh_init+0x3d8/0x1580 [ 3706.359108][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3706.359108][ T253] ip6_route_add+0x1c/0x140 [ 3706.359108][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3706.359108][ T253] inet6_addr_add+0x4f8/0xa40 [ 3706.359108][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3706.359108][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3706.359108][ T253] netlink_rcv_skb+0x130/0x360 [ 3706.359108][ T253] netlink_unicast+0x449/0x710 [ 3706.359108][ T253] netlink_sendmsg+0x723/0xbe0 [ 3706.359108][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3706.359108][ T253] ___sys_sendmsg+0xee/0x170 [ 3706.359108][ T253] __sys_sendmsg+0xcd/0x170 [ 3706.359108][ T253] do_syscall_64+0xc6/0x1e0 [ 3706.359108][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3706.359108][ T253] [ 3706.361350][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3706.361350][ T253] netdev_get_by_index+0x5e/0x80 [ 3706.361350][ T253] fib6_nh_init+0x3d8/0x1580 [ 3706.361350][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3706.361350][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3706.361350][ T253] ipv6_add_addr+0x411/0x2000 [ 3706.361350][ T253] inet6_addr_add+0x30e/0xa40 [ 3706.361350][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3706.361350][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3706.361350][ T253] netlink_rcv_skb+0x130/0x360 [ 3706.361350][ T253] netlink_unicast+0x449/0x710 [ 3706.361350][ T253] netlink_sendmsg+0x723/0xbe0 [ 3706.361350][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3706.361350][ T253] ___sys_sendmsg+0xee/0x170 [ 3706.361350][ T253] __sys_sendmsg+0xcd/0x170 [ 3706.361350][ T253] do_syscall_64+0xc6/0x1e0 [ 3706.361350][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3706.361350][ T253] [ 3706.363987][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3706.363987][ T253] netdev_get_by_index+0x5e/0x80 [ 3706.363987][ T253] fib6_nh_init+0x3d8/0x1580 [ 3706.363987][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3706.363987][ T253] ip6_route_add+0x1c/0x140 [ 3706.363987][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3706.363987][ T253] addrconf_add_dev+0xe2/0x170 [ 3706.363987][ T253] inet6_addr_add+0x12f/0xa40 [ 3706.363987][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3706.363987][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3706.363987][ T253] netlink_rcv_skb+0x130/0x360 [ 3706.363987][ T253] netlink_unicast+0x449/0x710 [ 3706.363987][ T253] netlink_sendmsg+0x723/0xbe0 [ 3706.363987][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3706.363987][ T253] ___sys_sendmsg+0xee/0x170 [ 3706.363987][ T253] __sys_sendmsg+0xcd/0x170 [ 3706.363987][ T253] do_syscall_64+0xc6/0x1e0 [ 3706.363987][ T253] [ 3706.366189][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3706.366189][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3706.366189][ T253] ipv6_find_idev+0x102/0x170 [ 3706.366189][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3706.366189][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3706.366189][ T253] netlink_rcv_skb+0x130/0x360 [ 3706.366189][ T253] netlink_unicast+0x449/0x710 [ 3706.366189][ T253] netlink_sendmsg+0x723/0xbe0 [ 3706.366189][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3706.366189][ T253] ___sys_sendmsg+0xee/0x170 [ 3706.366189][ T253] __sys_sendmsg+0xcd/0x170 [ 3706.366189][ T253] do_syscall_64+0xc6/0x1e0 [ 3706.366189][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3706.366189][ T253] [ 3706.367917][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3706.367917][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3706.367917][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3706.367917][ T253] ipv6_find_idev+0x102/0x170 [ 3706.367917][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3706.367917][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3706.367917][ T253] netlink_rcv_skb+0x130/0x360 [ 3706.367917][ T253] netlink_unicast+0x449/0x710 [ 3706.367917][ T253] netlink_sendmsg+0x723/0xbe0 [ 3706.367917][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3706.367917][ T253] ___sys_sendmsg+0xee/0x170 [ 3706.367917][ T253] __sys_sendmsg+0xcd/0x170 [ 3706.367917][ T253] do_syscall_64+0xc6/0x1e0 [ 3706.367917][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3706.367917][ T253] [ 3716.402239][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3716.402675][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3716.402675][ T253] dst_init+0x84/0x4a0 [ 3716.402675][ T253] dst_alloc+0x97/0x150 [ 3716.402675][ T253] ip6_dst_alloc+0x23/0x90 [ 3716.402675][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3716.402675][ T253] ip6_pol_route+0x56f/0x840 [ 3716.402675][ T253] fib6_rule_lookup+0x334/0x630 [ 3716.402675][ T253] ip6_route_output_flags+0x259/0x480 [ 3716.402675][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3716.402675][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3716.402675][ T253] netlink_rcv_skb+0x130/0x360 [ 3716.402675][ T253] netlink_unicast+0x449/0x710 [ 3716.402675][ T253] netlink_sendmsg+0x723/0xbe0 [ 3716.402675][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3716.402675][ T253] ___sys_sendmsg+0xee/0x170 [ 3716.402675][ T253] __sys_sendmsg+0xcd/0x170 [ 3716.402675][ T253] do_syscall_64+0xc6/0x1e0 [ 3716.402675][ T253] [ 3716.405035][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3716.405035][ T253] netdev_get_by_index+0x5e/0x80 [ 3716.405035][ T253] fib6_nh_init+0x3d8/0x1580 [ 3716.405035][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3716.405035][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3716.405035][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3716.405035][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3716.405035][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3716.405035][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3716.405035][ T253] addrconf_dad_begin+0x310/0x670 [ 3716.405035][ T253] addrconf_dad_work+0x10b/0xab0 [ 3716.405035][ T253] process_one_work+0x84d/0x18a0 [ 3716.405035][ T253] worker_thread+0x587/0xd30 [ 3716.405035][ T253] kthread+0x28a/0x350 [ 3716.405035][ T253] ret_from_fork+0x31/0x70 [ 3716.405035][ T253] ret_from_fork_asm+0x1a/0x30 [ 3716.405035][ T253] [ 3716.407423][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3716.407423][ T253] netdev_get_by_index+0x5e/0x80 [ 3716.407423][ T253] fib6_nh_init+0x3d8/0x1580 [ 3716.407423][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3716.407423][ T253] ip6_route_add+0x1c/0x140 [ 3716.407423][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3716.407423][ T253] inet6_addr_add+0x4f8/0xa40 [ 3716.407423][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3716.407423][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3716.407423][ T253] netlink_rcv_skb+0x130/0x360 [ 3716.407423][ T253] netlink_unicast+0x449/0x710 [ 3716.407423][ T253] netlink_sendmsg+0x723/0xbe0 [ 3716.407423][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3716.407423][ T253] ___sys_sendmsg+0xee/0x170 [ 3716.407423][ T253] __sys_sendmsg+0xcd/0x170 [ 3716.407423][ T253] do_syscall_64+0xc6/0x1e0 [ 3716.407423][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3716.407423][ T253] [ 3716.410751][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3716.410751][ T253] netdev_get_by_index+0x5e/0x80 [ 3716.410751][ T253] fib6_nh_init+0x3d8/0x1580 [ 3716.410751][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3716.410751][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3716.410751][ T253] ipv6_add_addr+0x411/0x2000 [ 3716.410751][ T253] inet6_addr_add+0x30e/0xa40 [ 3716.410751][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3716.410751][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3716.410751][ T253] netlink_rcv_skb+0x130/0x360 [ 3716.410751][ T253] netlink_unicast+0x449/0x710 [ 3716.410751][ T253] netlink_sendmsg+0x723/0xbe0 [ 3716.410751][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3716.410751][ T253] ___sys_sendmsg+0xee/0x170 [ 3716.410751][ T253] __sys_sendmsg+0xcd/0x170 [ 3716.410751][ T253] do_syscall_64+0xc6/0x1e0 [ 3716.410751][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3716.410751][ T253] [ 3716.414193][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3716.414193][ T253] netdev_get_by_index+0x5e/0x80 [ 3716.414193][ T253] fib6_nh_init+0x3d8/0x1580 [ 3716.414193][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3716.414193][ T253] ip6_route_add+0x1c/0x140 [ 3716.414193][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3716.414193][ T253] addrconf_add_dev+0xe2/0x170 [ 3716.414193][ T253] inet6_addr_add+0x12f/0xa40 [ 3716.414193][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3716.414193][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3716.414193][ T253] netlink_rcv_skb+0x130/0x360 [ 3716.414193][ T253] netlink_unicast+0x449/0x710 [ 3716.414193][ T253] netlink_sendmsg+0x723/0xbe0 [ 3716.414193][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3716.414193][ T253] ___sys_sendmsg+0xee/0x170 [ 3716.414193][ T253] __sys_sendmsg+0xcd/0x170 [ 3716.414193][ T253] do_syscall_64+0xc6/0x1e0 [ 3716.414193][ T253] [ 3716.417507][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3716.417507][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3716.417507][ T253] ipv6_find_idev+0x102/0x170 [ 3716.417507][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3716.417507][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3716.417507][ T253] netlink_rcv_skb+0x130/0x360 [ 3716.417507][ T253] netlink_unicast+0x449/0x710 [ 3716.417507][ T253] netlink_sendmsg+0x723/0xbe0 [ 3716.417507][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3716.417507][ T253] ___sys_sendmsg+0xee/0x170 [ 3716.417507][ T253] __sys_sendmsg+0xcd/0x170 [ 3716.417507][ T253] do_syscall_64+0xc6/0x1e0 [ 3716.417507][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3716.417507][ T253] [ 3716.420196][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3716.420196][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3716.420196][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3716.420196][ T253] ipv6_find_idev+0x102/0x170 [ 3716.420196][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3716.420196][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3716.420196][ T253] netlink_rcv_skb+0x130/0x360 [ 3716.420196][ T253] netlink_unicast+0x449/0x710 [ 3716.420196][ T253] netlink_sendmsg+0x723/0xbe0 [ 3716.420196][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3716.420196][ T253] ___sys_sendmsg+0xee/0x170 [ 3716.420196][ T253] __sys_sendmsg+0xcd/0x170 [ 3716.420196][ T253] do_syscall_64+0xc6/0x1e0 [ 3716.420196][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3716.420196][ T253] [ 3726.426242][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3726.426649][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3726.426649][ T253] dst_init+0x84/0x4a0 [ 3726.426649][ T253] dst_alloc+0x97/0x150 [ 3726.426649][ T253] ip6_dst_alloc+0x23/0x90 [ 3726.426649][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3726.426649][ T253] ip6_pol_route+0x56f/0x840 [ 3726.426649][ T253] fib6_rule_lookup+0x334/0x630 [ 3726.426649][ T253] ip6_route_output_flags+0x259/0x480 [ 3726.426649][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3726.426649][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3726.426649][ T253] netlink_rcv_skb+0x130/0x360 [ 3726.426649][ T253] netlink_unicast+0x449/0x710 [ 3726.426649][ T253] netlink_sendmsg+0x723/0xbe0 [ 3726.426649][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3726.426649][ T253] ___sys_sendmsg+0xee/0x170 [ 3726.426649][ T253] __sys_sendmsg+0xcd/0x170 [ 3726.426649][ T253] do_syscall_64+0xc6/0x1e0 [ 3726.426649][ T253] [ 3726.428892][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3726.428892][ T253] netdev_get_by_index+0x5e/0x80 [ 3726.428892][ T253] fib6_nh_init+0x3d8/0x1580 [ 3726.428892][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3726.428892][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3726.428892][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3726.428892][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3726.428892][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3726.428892][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3726.428892][ T253] addrconf_dad_begin+0x310/0x670 [ 3726.428892][ T253] addrconf_dad_work+0x10b/0xab0 [ 3726.428892][ T253] process_one_work+0x84d/0x18a0 [ 3726.428892][ T253] worker_thread+0x587/0xd30 [ 3726.428892][ T253] kthread+0x28a/0x350 [ 3726.428892][ T253] ret_from_fork+0x31/0x70 [ 3726.428892][ T253] ret_from_fork_asm+0x1a/0x30 [ 3726.428892][ T253] [ 3726.431067][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3726.431067][ T253] netdev_get_by_index+0x5e/0x80 [ 3726.431067][ T253] fib6_nh_init+0x3d8/0x1580 [ 3726.431067][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3726.431067][ T253] ip6_route_add+0x1c/0x140 [ 3726.431067][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3726.431067][ T253] inet6_addr_add+0x4f8/0xa40 [ 3726.431067][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3726.431067][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3726.431067][ T253] netlink_rcv_skb+0x130/0x360 [ 3726.431067][ T253] netlink_unicast+0x449/0x710 [ 3726.431067][ T253] netlink_sendmsg+0x723/0xbe0 [ 3726.431067][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3726.431067][ T253] ___sys_sendmsg+0xee/0x170 [ 3726.431067][ T253] __sys_sendmsg+0xcd/0x170 [ 3726.431067][ T253] do_syscall_64+0xc6/0x1e0 [ 3726.431067][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3726.431067][ T253] [ 3726.433497][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3726.433497][ T253] netdev_get_by_index+0x5e/0x80 [ 3726.433497][ T253] fib6_nh_init+0x3d8/0x1580 [ 3726.433497][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3726.433497][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3726.433497][ T253] ipv6_add_addr+0x411/0x2000 [ 3726.433497][ T253] inet6_addr_add+0x30e/0xa40 [ 3726.433497][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3726.433497][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3726.433497][ T253] netlink_rcv_skb+0x130/0x360 [ 3726.433497][ T253] netlink_unicast+0x449/0x710 [ 3726.433497][ T253] netlink_sendmsg+0x723/0xbe0 [ 3726.433497][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3726.433497][ T253] ___sys_sendmsg+0xee/0x170 [ 3726.433497][ T253] __sys_sendmsg+0xcd/0x170 [ 3726.433497][ T253] do_syscall_64+0xc6/0x1e0 [ 3726.433497][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3726.433497][ T253] [ 3726.435852][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3726.435852][ T253] netdev_get_by_index+0x5e/0x80 [ 3726.435852][ T253] fib6_nh_init+0x3d8/0x1580 [ 3726.435852][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3726.435852][ T253] ip6_route_add+0x1c/0x140 [ 3726.435852][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3726.435852][ T253] addrconf_add_dev+0xe2/0x170 [ 3726.435852][ T253] inet6_addr_add+0x12f/0xa40 [ 3726.435852][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3726.435852][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3726.435852][ T253] netlink_rcv_skb+0x130/0x360 [ 3726.435852][ T253] netlink_unicast+0x449/0x710 [ 3726.435852][ T253] netlink_sendmsg+0x723/0xbe0 [ 3726.435852][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3726.435852][ T253] ___sys_sendmsg+0xee/0x170 [ 3726.435852][ T253] __sys_sendmsg+0xcd/0x170 [ 3726.435852][ T253] do_syscall_64+0xc6/0x1e0 [ 3726.435852][ T253] [ 3726.438185][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3726.438185][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3726.438185][ T253] ipv6_find_idev+0x102/0x170 [ 3726.438185][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3726.438185][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3726.438185][ T253] netlink_rcv_skb+0x130/0x360 [ 3726.438185][ T253] netlink_unicast+0x449/0x710 [ 3726.438185][ T253] netlink_sendmsg+0x723/0xbe0 [ 3726.438185][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3726.438185][ T253] ___sys_sendmsg+0xee/0x170 [ 3726.438185][ T253] __sys_sendmsg+0xcd/0x170 [ 3726.438185][ T253] do_syscall_64+0xc6/0x1e0 [ 3726.438185][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3726.438185][ T253] [ 3726.439989][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3726.439989][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3726.439989][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3726.439989][ T253] ipv6_find_idev+0x102/0x170 [ 3726.439989][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3726.439989][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3726.439989][ T253] netlink_rcv_skb+0x130/0x360 [ 3726.439989][ T253] netlink_unicast+0x449/0x710 [ 3726.439989][ T253] netlink_sendmsg+0x723/0xbe0 [ 3726.439989][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3726.439989][ T253] ___sys_sendmsg+0xee/0x170 [ 3726.439989][ T253] __sys_sendmsg+0xcd/0x170 [ 3726.439989][ T253] do_syscall_64+0xc6/0x1e0 [ 3726.439989][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3726.439989][ T253] [ 3736.538247][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3736.538831][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3736.538831][ T253] dst_init+0x84/0x4a0 [ 3736.538831][ T253] dst_alloc+0x97/0x150 [ 3736.538831][ T253] ip6_dst_alloc+0x23/0x90 [ 3736.538831][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3736.538831][ T253] ip6_pol_route+0x56f/0x840 [ 3736.538831][ T253] fib6_rule_lookup+0x334/0x630 [ 3736.538831][ T253] ip6_route_output_flags+0x259/0x480 [ 3736.538831][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3736.538831][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3736.538831][ T253] netlink_rcv_skb+0x130/0x360 [ 3736.538831][ T253] netlink_unicast+0x449/0x710 [ 3736.538831][ T253] netlink_sendmsg+0x723/0xbe0 [ 3736.538831][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3736.538831][ T253] ___sys_sendmsg+0xee/0x170 [ 3736.538831][ T253] __sys_sendmsg+0xcd/0x170 [ 3736.538831][ T253] do_syscall_64+0xc6/0x1e0 [ 3736.538831][ T253] [ 3736.542375][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3736.542375][ T253] netdev_get_by_index+0x5e/0x80 [ 3736.542375][ T253] fib6_nh_init+0x3d8/0x1580 [ 3736.542375][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3736.542375][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3736.542375][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3736.542375][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3736.542375][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3736.542375][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3736.542375][ T253] addrconf_dad_begin+0x310/0x670 [ 3736.542375][ T253] addrconf_dad_work+0x10b/0xab0 [ 3736.542375][ T253] process_one_work+0x84d/0x18a0 [ 3736.542375][ T253] worker_thread+0x587/0xd30 [ 3736.542375][ T253] kthread+0x28a/0x350 [ 3736.542375][ T253] ret_from_fork+0x31/0x70 [ 3736.542375][ T253] ret_from_fork_asm+0x1a/0x30 [ 3736.542375][ T253] [ 3736.545793][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3736.545793][ T253] netdev_get_by_index+0x5e/0x80 [ 3736.545793][ T253] fib6_nh_init+0x3d8/0x1580 [ 3736.545793][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3736.545793][ T253] ip6_route_add+0x1c/0x140 [ 3736.545793][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3736.545793][ T253] inet6_addr_add+0x4f8/0xa40 [ 3736.545793][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3736.545793][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3736.545793][ T253] netlink_rcv_skb+0x130/0x360 [ 3736.545793][ T253] netlink_unicast+0x449/0x710 [ 3736.545793][ T253] netlink_sendmsg+0x723/0xbe0 [ 3736.545793][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3736.545793][ T253] ___sys_sendmsg+0xee/0x170 [ 3736.545793][ T253] __sys_sendmsg+0xcd/0x170 [ 3736.545793][ T253] do_syscall_64+0xc6/0x1e0 [ 3736.545793][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3736.545793][ T253] [ 3736.549197][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3736.549197][ T253] netdev_get_by_index+0x5e/0x80 [ 3736.549197][ T253] fib6_nh_init+0x3d8/0x1580 [ 3736.549197][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3736.549197][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3736.549197][ T253] ipv6_add_addr+0x411/0x2000 [ 3736.549197][ T253] inet6_addr_add+0x30e/0xa40 [ 3736.549197][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3736.549197][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3736.549197][ T253] netlink_rcv_skb+0x130/0x360 [ 3736.549197][ T253] netlink_unicast+0x449/0x710 [ 3736.549197][ T253] netlink_sendmsg+0x723/0xbe0 [ 3736.549197][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3736.549197][ T253] ___sys_sendmsg+0xee/0x170 [ 3736.549197][ T253] __sys_sendmsg+0xcd/0x170 [ 3736.549197][ T253] do_syscall_64+0xc6/0x1e0 [ 3736.549197][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3736.549197][ T253] [ 3736.552612][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3736.552612][ T253] netdev_get_by_index+0x5e/0x80 [ 3736.552612][ T253] fib6_nh_init+0x3d8/0x1580 [ 3736.552612][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3736.552612][ T253] ip6_route_add+0x1c/0x140 [ 3736.552612][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3736.552612][ T253] addrconf_add_dev+0xe2/0x170 [ 3736.552612][ T253] inet6_addr_add+0x12f/0xa40 [ 3736.552612][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3736.552612][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3736.552612][ T253] netlink_rcv_skb+0x130/0x360 [ 3736.552612][ T253] netlink_unicast+0x449/0x710 [ 3736.552612][ T253] netlink_sendmsg+0x723/0xbe0 [ 3736.552612][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3736.552612][ T253] ___sys_sendmsg+0xee/0x170 [ 3736.552612][ T253] __sys_sendmsg+0xcd/0x170 [ 3736.552612][ T253] do_syscall_64+0xc6/0x1e0 [ 3736.552612][ T253] [ 3736.555881][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3736.555881][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3736.555881][ T253] ipv6_find_idev+0x102/0x170 [ 3736.555881][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3736.555881][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3736.555881][ T253] netlink_rcv_skb+0x130/0x360 [ 3736.555881][ T253] netlink_unicast+0x449/0x710 [ 3736.555881][ T253] netlink_sendmsg+0x723/0xbe0 [ 3736.555881][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3736.555881][ T253] ___sys_sendmsg+0xee/0x170 [ 3736.555881][ T253] __sys_sendmsg+0xcd/0x170 [ 3736.555881][ T253] do_syscall_64+0xc6/0x1e0 [ 3736.555881][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3736.555881][ T253] [ 3736.557719][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3736.557719][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3736.557719][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3736.557719][ T253] ipv6_find_idev+0x102/0x170 [ 3736.557719][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3736.557719][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3736.557719][ T253] netlink_rcv_skb+0x130/0x360 [ 3736.557719][ T253] netlink_unicast+0x449/0x710 [ 3736.557719][ T253] netlink_sendmsg+0x723/0xbe0 [ 3736.557719][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3736.557719][ T253] ___sys_sendmsg+0xee/0x170 [ 3736.557719][ T253] __sys_sendmsg+0xcd/0x170 [ 3736.557719][ T253] do_syscall_64+0xc6/0x1e0 [ 3736.557719][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3736.557719][ T253] [ 3746.618341][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3746.618757][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3746.618757][ T253] dst_init+0x84/0x4a0 [ 3746.618757][ T253] dst_alloc+0x97/0x150 [ 3746.618757][ T253] ip6_dst_alloc+0x23/0x90 [ 3746.618757][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3746.618757][ T253] ip6_pol_route+0x56f/0x840 [ 3746.618757][ T253] fib6_rule_lookup+0x334/0x630 [ 3746.618757][ T253] ip6_route_output_flags+0x259/0x480 [ 3746.618757][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3746.618757][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3746.618757][ T253] netlink_rcv_skb+0x130/0x360 [ 3746.618757][ T253] netlink_unicast+0x449/0x710 [ 3746.618757][ T253] netlink_sendmsg+0x723/0xbe0 [ 3746.618757][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3746.618757][ T253] ___sys_sendmsg+0xee/0x170 [ 3746.618757][ T253] __sys_sendmsg+0xcd/0x170 [ 3746.618757][ T253] do_syscall_64+0xc6/0x1e0 [ 3746.618757][ T253] [ 3746.620961][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3746.620961][ T253] netdev_get_by_index+0x5e/0x80 [ 3746.620961][ T253] fib6_nh_init+0x3d8/0x1580 [ 3746.620961][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3746.620961][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3746.620961][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3746.620961][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3746.620961][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3746.620961][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3746.620961][ T253] addrconf_dad_begin+0x310/0x670 [ 3746.620961][ T253] addrconf_dad_work+0x10b/0xab0 [ 3746.620961][ T253] process_one_work+0x84d/0x18a0 [ 3746.620961][ T253] worker_thread+0x587/0xd30 [ 3746.620961][ T253] kthread+0x28a/0x350 [ 3746.620961][ T253] ret_from_fork+0x31/0x70 [ 3746.620961][ T253] ret_from_fork_asm+0x1a/0x30 [ 3746.620961][ T253] [ 3746.623126][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3746.623126][ T253] netdev_get_by_index+0x5e/0x80 [ 3746.623126][ T253] fib6_nh_init+0x3d8/0x1580 [ 3746.623126][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3746.623126][ T253] ip6_route_add+0x1c/0x140 [ 3746.623126][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3746.623126][ T253] inet6_addr_add+0x4f8/0xa40 [ 3746.623126][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3746.623126][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3746.623126][ T253] netlink_rcv_skb+0x130/0x360 [ 3746.623126][ T253] netlink_unicast+0x449/0x710 [ 3746.623126][ T253] netlink_sendmsg+0x723/0xbe0 [ 3746.623126][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3746.623126][ T253] ___sys_sendmsg+0xee/0x170 [ 3746.623126][ T253] __sys_sendmsg+0xcd/0x170 [ 3746.623126][ T253] do_syscall_64+0xc6/0x1e0 [ 3746.623126][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3746.623126][ T253] [ 3746.625371][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3746.625371][ T253] netdev_get_by_index+0x5e/0x80 [ 3746.625371][ T253] fib6_nh_init+0x3d8/0x1580 [ 3746.625371][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3746.625371][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3746.625371][ T253] ipv6_add_addr+0x411/0x2000 [ 3746.625371][ T253] inet6_addr_add+0x30e/0xa40 [ 3746.625371][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3746.625371][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3746.625371][ T253] netlink_rcv_skb+0x130/0x360 [ 3746.625371][ T253] netlink_unicast+0x449/0x710 [ 3746.625371][ T253] netlink_sendmsg+0x723/0xbe0 [ 3746.625371][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3746.625371][ T253] ___sys_sendmsg+0xee/0x170 [ 3746.625371][ T253] __sys_sendmsg+0xcd/0x170 [ 3746.625371][ T253] do_syscall_64+0xc6/0x1e0 [ 3746.625371][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3746.625371][ T253] [ 3746.627613][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3746.627613][ T253] netdev_get_by_index+0x5e/0x80 [ 3746.627613][ T253] fib6_nh_init+0x3d8/0x1580 [ 3746.627613][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3746.627613][ T253] ip6_route_add+0x1c/0x140 [ 3746.627613][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3746.627613][ T253] addrconf_add_dev+0xe2/0x170 [ 3746.627613][ T253] inet6_addr_add+0x12f/0xa40 [ 3746.627613][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3746.627613][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3746.627613][ T253] netlink_rcv_skb+0x130/0x360 [ 3746.627613][ T253] netlink_unicast+0x449/0x710 [ 3746.627613][ T253] netlink_sendmsg+0x723/0xbe0 [ 3746.627613][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3746.627613][ T253] ___sys_sendmsg+0xee/0x170 [ 3746.627613][ T253] __sys_sendmsg+0xcd/0x170 [ 3746.627613][ T253] do_syscall_64+0xc6/0x1e0 [ 3746.627613][ T253] [ 3746.629826][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3746.629826][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3746.629826][ T253] ipv6_find_idev+0x102/0x170 [ 3746.629826][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3746.629826][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3746.629826][ T253] netlink_rcv_skb+0x130/0x360 [ 3746.629826][ T253] netlink_unicast+0x449/0x710 [ 3746.629826][ T253] netlink_sendmsg+0x723/0xbe0 [ 3746.629826][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3746.629826][ T253] ___sys_sendmsg+0xee/0x170 [ 3746.629826][ T253] __sys_sendmsg+0xcd/0x170 [ 3746.629826][ T253] do_syscall_64+0xc6/0x1e0 [ 3746.629826][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3746.629826][ T253] [ 3746.631562][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3746.631562][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3746.631562][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3746.631562][ T253] ipv6_find_idev+0x102/0x170 [ 3746.631562][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3746.631562][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3746.631562][ T253] netlink_rcv_skb+0x130/0x360 [ 3746.631562][ T253] netlink_unicast+0x449/0x710 [ 3746.631562][ T253] netlink_sendmsg+0x723/0xbe0 [ 3746.631562][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3746.631562][ T253] ___sys_sendmsg+0xee/0x170 [ 3746.631562][ T253] __sys_sendmsg+0xcd/0x170 [ 3746.631562][ T253] do_syscall_64+0xc6/0x1e0 [ 3746.631562][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3746.631562][ T253] [ 3756.698230][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3756.698663][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3756.698663][ T253] dst_init+0x84/0x4a0 [ 3756.698663][ T253] dst_alloc+0x97/0x150 [ 3756.698663][ T253] ip6_dst_alloc+0x23/0x90 [ 3756.698663][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3756.698663][ T253] ip6_pol_route+0x56f/0x840 [ 3756.698663][ T253] fib6_rule_lookup+0x334/0x630 [ 3756.698663][ T253] ip6_route_output_flags+0x259/0x480 [ 3756.698663][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3756.698663][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3756.698663][ T253] netlink_rcv_skb+0x130/0x360 [ 3756.698663][ T253] netlink_unicast+0x449/0x710 [ 3756.698663][ T253] netlink_sendmsg+0x723/0xbe0 [ 3756.698663][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3756.698663][ T253] ___sys_sendmsg+0xee/0x170 [ 3756.698663][ T253] __sys_sendmsg+0xcd/0x170 [ 3756.698663][ T253] do_syscall_64+0xc6/0x1e0 [ 3756.698663][ T253] [ 3756.700896][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3756.700896][ T253] netdev_get_by_index+0x5e/0x80 [ 3756.700896][ T253] fib6_nh_init+0x3d8/0x1580 [ 3756.700896][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3756.700896][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3756.700896][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3756.700896][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3756.700896][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3756.700896][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3756.700896][ T253] addrconf_dad_begin+0x310/0x670 [ 3756.700896][ T253] addrconf_dad_work+0x10b/0xab0 [ 3756.700896][ T253] process_one_work+0x84d/0x18a0 [ 3756.700896][ T253] worker_thread+0x587/0xd30 [ 3756.700896][ T253] kthread+0x28a/0x350 [ 3756.700896][ T253] ret_from_fork+0x31/0x70 [ 3756.700896][ T253] ret_from_fork_asm+0x1a/0x30 [ 3756.700896][ T253] [ 3756.703067][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3756.703067][ T253] netdev_get_by_index+0x5e/0x80 [ 3756.703067][ T253] fib6_nh_init+0x3d8/0x1580 [ 3756.703067][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3756.703067][ T253] ip6_route_add+0x1c/0x140 [ 3756.703067][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3756.703067][ T253] inet6_addr_add+0x4f8/0xa40 [ 3756.703067][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3756.703067][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3756.703067][ T253] netlink_rcv_skb+0x130/0x360 [ 3756.703067][ T253] netlink_unicast+0x449/0x710 [ 3756.703067][ T253] netlink_sendmsg+0x723/0xbe0 [ 3756.703067][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3756.703067][ T253] ___sys_sendmsg+0xee/0x170 [ 3756.703067][ T253] __sys_sendmsg+0xcd/0x170 [ 3756.703067][ T253] do_syscall_64+0xc6/0x1e0 [ 3756.703067][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3756.703067][ T253] [ 3756.705358][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3756.705358][ T253] netdev_get_by_index+0x5e/0x80 [ 3756.705358][ T253] fib6_nh_init+0x3d8/0x1580 [ 3756.705358][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3756.705358][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3756.705358][ T253] ipv6_add_addr+0x411/0x2000 [ 3756.705358][ T253] inet6_addr_add+0x30e/0xa40 [ 3756.705358][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3756.705358][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3756.705358][ T253] netlink_rcv_skb+0x130/0x360 [ 3756.705358][ T253] netlink_unicast+0x449/0x710 [ 3756.705358][ T253] netlink_sendmsg+0x723/0xbe0 [ 3756.705358][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3756.705358][ T253] ___sys_sendmsg+0xee/0x170 [ 3756.705358][ T253] __sys_sendmsg+0xcd/0x170 [ 3756.705358][ T253] do_syscall_64+0xc6/0x1e0 [ 3756.705358][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3756.705358][ T253] [ 3756.707639][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3756.707639][ T253] netdev_get_by_index+0x5e/0x80 [ 3756.707639][ T253] fib6_nh_init+0x3d8/0x1580 [ 3756.707639][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3756.707639][ T253] ip6_route_add+0x1c/0x140 [ 3756.707639][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3756.707639][ T253] addrconf_add_dev+0xe2/0x170 [ 3756.707639][ T253] inet6_addr_add+0x12f/0xa40 [ 3756.707639][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3756.707639][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3756.707639][ T253] netlink_rcv_skb+0x130/0x360 [ 3756.707639][ T253] netlink_unicast+0x449/0x710 [ 3756.707639][ T253] netlink_sendmsg+0x723/0xbe0 [ 3756.707639][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3756.707639][ T253] ___sys_sendmsg+0xee/0x170 [ 3756.707639][ T253] __sys_sendmsg+0xcd/0x170 [ 3756.707639][ T253] do_syscall_64+0xc6/0x1e0 [ 3756.707639][ T253] [ 3756.709872][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3756.709872][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3756.709872][ T253] ipv6_find_idev+0x102/0x170 [ 3756.709872][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3756.709872][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3756.709872][ T253] netlink_rcv_skb+0x130/0x360 [ 3756.709872][ T253] netlink_unicast+0x449/0x710 [ 3756.709872][ T253] netlink_sendmsg+0x723/0xbe0 [ 3756.709872][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3756.709872][ T253] ___sys_sendmsg+0xee/0x170 [ 3756.709872][ T253] __sys_sendmsg+0xcd/0x170 [ 3756.709872][ T253] do_syscall_64+0xc6/0x1e0 [ 3756.709872][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3756.709872][ T253] [ 3756.711624][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3756.711624][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3756.711624][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3756.711624][ T253] ipv6_find_idev+0x102/0x170 [ 3756.711624][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3756.711624][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3756.711624][ T253] netlink_rcv_skb+0x130/0x360 [ 3756.711624][ T253] netlink_unicast+0x449/0x710 [ 3756.711624][ T253] netlink_sendmsg+0x723/0xbe0 [ 3756.711624][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3756.711624][ T253] ___sys_sendmsg+0xee/0x170 [ 3756.711624][ T253] __sys_sendmsg+0xcd/0x170 [ 3756.711624][ T253] do_syscall_64+0xc6/0x1e0 [ 3756.711624][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3756.711624][ T253] [ 3766.954299][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3766.954728][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3766.954728][ T253] dst_init+0x84/0x4a0 [ 3766.954728][ T253] dst_alloc+0x97/0x150 [ 3766.954728][ T253] ip6_dst_alloc+0x23/0x90 [ 3766.954728][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3766.954728][ T253] ip6_pol_route+0x56f/0x840 [ 3766.954728][ T253] fib6_rule_lookup+0x334/0x630 [ 3766.954728][ T253] ip6_route_output_flags+0x259/0x480 [ 3766.954728][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3766.954728][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3766.954728][ T253] netlink_rcv_skb+0x130/0x360 [ 3766.954728][ T253] netlink_unicast+0x449/0x710 [ 3766.954728][ T253] netlink_sendmsg+0x723/0xbe0 [ 3766.954728][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3766.954728][ T253] ___sys_sendmsg+0xee/0x170 [ 3766.954728][ T253] __sys_sendmsg+0xcd/0x170 [ 3766.954728][ T253] do_syscall_64+0xc6/0x1e0 [ 3766.954728][ T253] [ 3766.956958][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3766.956958][ T253] netdev_get_by_index+0x5e/0x80 [ 3766.956958][ T253] fib6_nh_init+0x3d8/0x1580 [ 3766.956958][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3766.956958][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3766.956958][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3766.956958][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3766.956958][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3766.956958][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3766.956958][ T253] addrconf_dad_begin+0x310/0x670 [ 3766.956958][ T253] addrconf_dad_work+0x10b/0xab0 [ 3766.956958][ T253] process_one_work+0x84d/0x18a0 [ 3766.956958][ T253] worker_thread+0x587/0xd30 [ 3766.956958][ T253] kthread+0x28a/0x350 [ 3766.956958][ T253] ret_from_fork+0x31/0x70 [ 3766.956958][ T253] ret_from_fork_asm+0x1a/0x30 [ 3766.956958][ T253] [ 3766.959129][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3766.959129][ T253] netdev_get_by_index+0x5e/0x80 [ 3766.959129][ T253] fib6_nh_init+0x3d8/0x1580 [ 3766.959129][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3766.959129][ T253] ip6_route_add+0x1c/0x140 [ 3766.959129][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3766.959129][ T253] inet6_addr_add+0x4f8/0xa40 [ 3766.959129][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3766.959129][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3766.959129][ T253] netlink_rcv_skb+0x130/0x360 [ 3766.959129][ T253] netlink_unicast+0x449/0x710 [ 3766.959129][ T253] netlink_sendmsg+0x723/0xbe0 [ 3766.959129][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3766.959129][ T253] ___sys_sendmsg+0xee/0x170 [ 3766.959129][ T253] __sys_sendmsg+0xcd/0x170 [ 3766.959129][ T253] do_syscall_64+0xc6/0x1e0 [ 3766.959129][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3766.959129][ T253] [ 3766.961404][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3766.961404][ T253] netdev_get_by_index+0x5e/0x80 [ 3766.961404][ T253] fib6_nh_init+0x3d8/0x1580 [ 3766.961404][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3766.961404][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3766.961404][ T253] ipv6_add_addr+0x411/0x2000 [ 3766.961404][ T253] inet6_addr_add+0x30e/0xa40 [ 3766.961404][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3766.961404][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3766.961404][ T253] netlink_rcv_skb+0x130/0x360 [ 3766.961404][ T253] netlink_unicast+0x449/0x710 [ 3766.961404][ T253] netlink_sendmsg+0x723/0xbe0 [ 3766.961404][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3766.961404][ T253] ___sys_sendmsg+0xee/0x170 [ 3766.961404][ T253] __sys_sendmsg+0xcd/0x170 [ 3766.961404][ T253] do_syscall_64+0xc6/0x1e0 [ 3766.961404][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3766.961404][ T253] [ 3766.963690][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3766.963690][ T253] netdev_get_by_index+0x5e/0x80 [ 3766.963690][ T253] fib6_nh_init+0x3d8/0x1580 [ 3766.963690][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3766.963690][ T253] ip6_route_add+0x1c/0x140 [ 3766.963690][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3766.963690][ T253] addrconf_add_dev+0xe2/0x170 [ 3766.963690][ T253] inet6_addr_add+0x12f/0xa40 [ 3766.963690][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3766.963690][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3766.963690][ T253] netlink_rcv_skb+0x130/0x360 [ 3766.963690][ T253] netlink_unicast+0x449/0x710 [ 3766.963690][ T253] netlink_sendmsg+0x723/0xbe0 [ 3766.963690][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3766.963690][ T253] ___sys_sendmsg+0xee/0x170 [ 3766.963690][ T253] __sys_sendmsg+0xcd/0x170 [ 3766.963690][ T253] do_syscall_64+0xc6/0x1e0 [ 3766.963690][ T253] [ 3766.965934][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3766.965934][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3766.965934][ T253] ipv6_find_idev+0x102/0x170 [ 3766.965934][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3766.965934][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3766.965934][ T253] netlink_rcv_skb+0x130/0x360 [ 3766.965934][ T253] netlink_unicast+0x449/0x710 [ 3766.965934][ T253] netlink_sendmsg+0x723/0xbe0 [ 3766.965934][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3766.965934][ T253] ___sys_sendmsg+0xee/0x170 [ 3766.965934][ T253] __sys_sendmsg+0xcd/0x170 [ 3766.965934][ T253] do_syscall_64+0xc6/0x1e0 [ 3766.965934][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3766.965934][ T253] [ 3766.967691][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3766.967691][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3766.967691][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3766.967691][ T253] ipv6_find_idev+0x102/0x170 [ 3766.967691][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3766.967691][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3766.967691][ T253] netlink_rcv_skb+0x130/0x360 [ 3766.967691][ T253] netlink_unicast+0x449/0x710 [ 3766.967691][ T253] netlink_sendmsg+0x723/0xbe0 [ 3766.967691][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3766.967691][ T253] ___sys_sendmsg+0xee/0x170 [ 3766.967691][ T253] __sys_sendmsg+0xcd/0x170 [ 3766.967691][ T253] do_syscall_64+0xc6/0x1e0 [ 3766.967691][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3766.967691][ T253] [ 3777.082308][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3777.082733][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3777.082733][ T253] dst_init+0x84/0x4a0 [ 3777.082733][ T253] dst_alloc+0x97/0x150 [ 3777.082733][ T253] ip6_dst_alloc+0x23/0x90 [ 3777.082733][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3777.082733][ T253] ip6_pol_route+0x56f/0x840 [ 3777.082733][ T253] fib6_rule_lookup+0x334/0x630 [ 3777.082733][ T253] ip6_route_output_flags+0x259/0x480 [ 3777.082733][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3777.082733][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3777.082733][ T253] netlink_rcv_skb+0x130/0x360 [ 3777.082733][ T253] netlink_unicast+0x449/0x710 [ 3777.082733][ T253] netlink_sendmsg+0x723/0xbe0 [ 3777.082733][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3777.082733][ T253] ___sys_sendmsg+0xee/0x170 [ 3777.082733][ T253] __sys_sendmsg+0xcd/0x170 [ 3777.082733][ T253] do_syscall_64+0xc6/0x1e0 [ 3777.082733][ T253] [ 3777.084930][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3777.084930][ T253] netdev_get_by_index+0x5e/0x80 [ 3777.084930][ T253] fib6_nh_init+0x3d8/0x1580 [ 3777.084930][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3777.084930][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3777.084930][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3777.084930][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3777.084930][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3777.084930][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3777.084930][ T253] addrconf_dad_begin+0x310/0x670 [ 3777.084930][ T253] addrconf_dad_work+0x10b/0xab0 [ 3777.084930][ T253] process_one_work+0x84d/0x18a0 [ 3777.084930][ T253] worker_thread+0x587/0xd30 [ 3777.084930][ T253] kthread+0x28a/0x350 [ 3777.084930][ T253] ret_from_fork+0x31/0x70 [ 3777.084930][ T253] ret_from_fork_asm+0x1a/0x30 [ 3777.084930][ T253] [ 3777.087081][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3777.087081][ T253] netdev_get_by_index+0x5e/0x80 [ 3777.087081][ T253] fib6_nh_init+0x3d8/0x1580 [ 3777.087081][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3777.087081][ T253] ip6_route_add+0x1c/0x140 [ 3777.087081][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3777.087081][ T253] inet6_addr_add+0x4f8/0xa40 [ 3777.087081][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3777.087081][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3777.087081][ T253] netlink_rcv_skb+0x130/0x360 [ 3777.087081][ T253] netlink_unicast+0x449/0x710 [ 3777.087081][ T253] netlink_sendmsg+0x723/0xbe0 [ 3777.087081][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3777.087081][ T253] ___sys_sendmsg+0xee/0x170 [ 3777.087081][ T253] __sys_sendmsg+0xcd/0x170 [ 3777.087081][ T253] do_syscall_64+0xc6/0x1e0 [ 3777.087081][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3777.087081][ T253] [ 3777.089334][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3777.089334][ T253] netdev_get_by_index+0x5e/0x80 [ 3777.089334][ T253] fib6_nh_init+0x3d8/0x1580 [ 3777.089334][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3777.089334][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3777.089334][ T253] ipv6_add_addr+0x411/0x2000 [ 3777.089334][ T253] inet6_addr_add+0x30e/0xa40 [ 3777.089334][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3777.089334][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3777.089334][ T253] netlink_rcv_skb+0x130/0x360 [ 3777.089334][ T253] netlink_unicast+0x449/0x710 [ 3777.089334][ T253] netlink_sendmsg+0x723/0xbe0 [ 3777.089334][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3777.089334][ T253] ___sys_sendmsg+0xee/0x170 [ 3777.089334][ T253] __sys_sendmsg+0xcd/0x170 [ 3777.089334][ T253] do_syscall_64+0xc6/0x1e0 [ 3777.089334][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3777.089334][ T253] [ 3777.091588][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3777.091588][ T253] netdev_get_by_index+0x5e/0x80 [ 3777.091588][ T253] fib6_nh_init+0x3d8/0x1580 [ 3777.091588][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3777.091588][ T253] ip6_route_add+0x1c/0x140 [ 3777.091588][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3777.091588][ T253] addrconf_add_dev+0xe2/0x170 [ 3777.091588][ T253] inet6_addr_add+0x12f/0xa40 [ 3777.091588][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3777.091588][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3777.091588][ T253] netlink_rcv_skb+0x130/0x360 [ 3777.091588][ T253] netlink_unicast+0x449/0x710 [ 3777.091588][ T253] netlink_sendmsg+0x723/0xbe0 [ 3777.091588][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3777.091588][ T253] ___sys_sendmsg+0xee/0x170 [ 3777.091588][ T253] __sys_sendmsg+0xcd/0x170 [ 3777.091588][ T253] do_syscall_64+0xc6/0x1e0 [ 3777.091588][ T253] [ 3777.093806][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3777.093806][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3777.093806][ T253] ipv6_find_idev+0x102/0x170 [ 3777.093806][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3777.093806][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3777.093806][ T253] netlink_rcv_skb+0x130/0x360 [ 3777.093806][ T253] netlink_unicast+0x449/0x710 [ 3777.093806][ T253] netlink_sendmsg+0x723/0xbe0 [ 3777.093806][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3777.093806][ T253] ___sys_sendmsg+0xee/0x170 [ 3777.093806][ T253] __sys_sendmsg+0xcd/0x170 [ 3777.093806][ T253] do_syscall_64+0xc6/0x1e0 [ 3777.093806][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3777.093806][ T253] [ 3777.095533][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3777.095533][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3777.095533][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3777.095533][ T253] ipv6_find_idev+0x102/0x170 [ 3777.095533][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3777.095533][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3777.095533][ T253] netlink_rcv_skb+0x130/0x360 [ 3777.095533][ T253] netlink_unicast+0x449/0x710 [ 3777.095533][ T253] netlink_sendmsg+0x723/0xbe0 [ 3777.095533][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3777.095533][ T253] ___sys_sendmsg+0xee/0x170 [ 3777.095533][ T253] __sys_sendmsg+0xcd/0x170 [ 3777.095533][ T253] do_syscall_64+0xc6/0x1e0 [ 3777.095533][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3777.095533][ T253] [ 3787.290321][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3787.290738][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3787.290738][ T253] dst_init+0x84/0x4a0 [ 3787.290738][ T253] dst_alloc+0x97/0x150 [ 3787.290738][ T253] ip6_dst_alloc+0x23/0x90 [ 3787.290738][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3787.290738][ T253] ip6_pol_route+0x56f/0x840 [ 3787.290738][ T253] fib6_rule_lookup+0x334/0x630 [ 3787.290738][ T253] ip6_route_output_flags+0x259/0x480 [ 3787.290738][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3787.290738][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3787.290738][ T253] netlink_rcv_skb+0x130/0x360 [ 3787.290738][ T253] netlink_unicast+0x449/0x710 [ 3787.290738][ T253] netlink_sendmsg+0x723/0xbe0 [ 3787.290738][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3787.290738][ T253] ___sys_sendmsg+0xee/0x170 [ 3787.290738][ T253] __sys_sendmsg+0xcd/0x170 [ 3787.290738][ T253] do_syscall_64+0xc6/0x1e0 [ 3787.290738][ T253] [ 3787.292950][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3787.292950][ T253] netdev_get_by_index+0x5e/0x80 [ 3787.292950][ T253] fib6_nh_init+0x3d8/0x1580 [ 3787.292950][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3787.292950][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3787.292950][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3787.292950][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3787.292950][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3787.292950][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3787.292950][ T253] addrconf_dad_begin+0x310/0x670 [ 3787.292950][ T253] addrconf_dad_work+0x10b/0xab0 [ 3787.292950][ T253] process_one_work+0x84d/0x18a0 [ 3787.292950][ T253] worker_thread+0x587/0xd30 [ 3787.292950][ T253] kthread+0x28a/0x350 [ 3787.292950][ T253] ret_from_fork+0x31/0x70 [ 3787.292950][ T253] ret_from_fork_asm+0x1a/0x30 [ 3787.292950][ T253] [ 3787.295100][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3787.295100][ T253] netdev_get_by_index+0x5e/0x80 [ 3787.295100][ T253] fib6_nh_init+0x3d8/0x1580 [ 3787.295100][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3787.295100][ T253] ip6_route_add+0x1c/0x140 [ 3787.295100][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3787.295100][ T253] inet6_addr_add+0x4f8/0xa40 [ 3787.295100][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3787.295100][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3787.295100][ T253] netlink_rcv_skb+0x130/0x360 [ 3787.295100][ T253] netlink_unicast+0x449/0x710 [ 3787.295100][ T253] netlink_sendmsg+0x723/0xbe0 [ 3787.295100][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3787.295100][ T253] ___sys_sendmsg+0xee/0x170 [ 3787.295100][ T253] __sys_sendmsg+0xcd/0x170 [ 3787.295100][ T253] do_syscall_64+0xc6/0x1e0 [ 3787.295100][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3787.295100][ T253] [ 3787.297346][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3787.297346][ T253] netdev_get_by_index+0x5e/0x80 [ 3787.297346][ T253] fib6_nh_init+0x3d8/0x1580 [ 3787.297346][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3787.297346][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3787.297346][ T253] ipv6_add_addr+0x411/0x2000 [ 3787.297346][ T253] inet6_addr_add+0x30e/0xa40 [ 3787.297346][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3787.297346][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3787.297346][ T253] netlink_rcv_skb+0x130/0x360 [ 3787.297346][ T253] netlink_unicast+0x449/0x710 [ 3787.297346][ T253] netlink_sendmsg+0x723/0xbe0 [ 3787.297346][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3787.297346][ T253] ___sys_sendmsg+0xee/0x170 [ 3787.297346][ T253] __sys_sendmsg+0xcd/0x170 [ 3787.297346][ T253] do_syscall_64+0xc6/0x1e0 [ 3787.297346][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3787.297346][ T253] [ 3787.299591][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3787.299591][ T253] netdev_get_by_index+0x5e/0x80 [ 3787.299591][ T253] fib6_nh_init+0x3d8/0x1580 [ 3787.299591][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3787.299591][ T253] ip6_route_add+0x1c/0x140 [ 3787.299591][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3787.299591][ T253] addrconf_add_dev+0xe2/0x170 [ 3787.299591][ T253] inet6_addr_add+0x12f/0xa40 [ 3787.299591][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3787.299591][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3787.299591][ T253] netlink_rcv_skb+0x130/0x360 [ 3787.299591][ T253] netlink_unicast+0x449/0x710 [ 3787.299591][ T253] netlink_sendmsg+0x723/0xbe0 [ 3787.299591][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3787.299591][ T253] ___sys_sendmsg+0xee/0x170 [ 3787.299591][ T253] __sys_sendmsg+0xcd/0x170 [ 3787.299591][ T253] do_syscall_64+0xc6/0x1e0 [ 3787.299591][ T253] [ 3787.301816][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3787.301816][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3787.301816][ T253] ipv6_find_idev+0x102/0x170 [ 3787.301816][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3787.301816][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3787.301816][ T253] netlink_rcv_skb+0x130/0x360 [ 3787.301816][ T253] netlink_unicast+0x449/0x710 [ 3787.301816][ T253] netlink_sendmsg+0x723/0xbe0 [ 3787.301816][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3787.301816][ T253] ___sys_sendmsg+0xee/0x170 [ 3787.301816][ T253] __sys_sendmsg+0xcd/0x170 [ 3787.301816][ T253] do_syscall_64+0xc6/0x1e0 [ 3787.301816][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3787.301816][ T253] [ 3787.303547][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3787.303547][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3787.303547][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3787.303547][ T253] ipv6_find_idev+0x102/0x170 [ 3787.303547][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3787.303547][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3787.303547][ T253] netlink_rcv_skb+0x130/0x360 [ 3787.303547][ T253] netlink_unicast+0x449/0x710 [ 3787.303547][ T253] netlink_sendmsg+0x723/0xbe0 [ 3787.303547][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3787.303547][ T253] ___sys_sendmsg+0xee/0x170 [ 3787.303547][ T253] __sys_sendmsg+0xcd/0x170 [ 3787.303547][ T253] do_syscall_64+0xc6/0x1e0 [ 3787.303547][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3787.303547][ T253] [ 3797.474412][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3797.474857][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3797.474857][ T253] dst_init+0x84/0x4a0 [ 3797.474857][ T253] dst_alloc+0x97/0x150 [ 3797.474857][ T253] ip6_dst_alloc+0x23/0x90 [ 3797.474857][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3797.474857][ T253] ip6_pol_route+0x56f/0x840 [ 3797.474857][ T253] fib6_rule_lookup+0x334/0x630 [ 3797.474857][ T253] ip6_route_output_flags+0x259/0x480 [ 3797.474857][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3797.474857][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3797.474857][ T253] netlink_rcv_skb+0x130/0x360 [ 3797.474857][ T253] netlink_unicast+0x449/0x710 [ 3797.474857][ T253] netlink_sendmsg+0x723/0xbe0 [ 3797.474857][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3797.474857][ T253] ___sys_sendmsg+0xee/0x170 [ 3797.474857][ T253] __sys_sendmsg+0xcd/0x170 [ 3797.474857][ T253] do_syscall_64+0xc6/0x1e0 [ 3797.474857][ T253] [ 3797.477062][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3797.477062][ T253] netdev_get_by_index+0x5e/0x80 [ 3797.477062][ T253] fib6_nh_init+0x3d8/0x1580 [ 3797.477062][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3797.477062][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3797.477062][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3797.477062][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3797.477062][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3797.477062][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3797.477062][ T253] addrconf_dad_begin+0x310/0x670 [ 3797.477062][ T253] addrconf_dad_work+0x10b/0xab0 [ 3797.477062][ T253] process_one_work+0x84d/0x18a0 [ 3797.477062][ T253] worker_thread+0x587/0xd30 [ 3797.477062][ T253] kthread+0x28a/0x350 [ 3797.477062][ T253] ret_from_fork+0x31/0x70 [ 3797.477062][ T253] ret_from_fork_asm+0x1a/0x30 [ 3797.477062][ T253] [ 3797.479209][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3797.479209][ T253] netdev_get_by_index+0x5e/0x80 [ 3797.479209][ T253] fib6_nh_init+0x3d8/0x1580 [ 3797.479209][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3797.479209][ T253] ip6_route_add+0x1c/0x140 [ 3797.479209][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3797.479209][ T253] inet6_addr_add+0x4f8/0xa40 [ 3797.479209][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3797.479209][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3797.479209][ T253] netlink_rcv_skb+0x130/0x360 [ 3797.479209][ T253] netlink_unicast+0x449/0x710 [ 3797.479209][ T253] netlink_sendmsg+0x723/0xbe0 [ 3797.479209][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3797.479209][ T253] ___sys_sendmsg+0xee/0x170 [ 3797.479209][ T253] __sys_sendmsg+0xcd/0x170 [ 3797.479209][ T253] do_syscall_64+0xc6/0x1e0 [ 3797.479209][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3797.479209][ T253] [ 3797.481452][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3797.481452][ T253] netdev_get_by_index+0x5e/0x80 [ 3797.481452][ T253] fib6_nh_init+0x3d8/0x1580 [ 3797.481452][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3797.481452][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3797.481452][ T253] ipv6_add_addr+0x411/0x2000 [ 3797.481452][ T253] inet6_addr_add+0x30e/0xa40 [ 3797.481452][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3797.481452][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3797.481452][ T253] netlink_rcv_skb+0x130/0x360 [ 3797.481452][ T253] netlink_unicast+0x449/0x710 [ 3797.481452][ T253] netlink_sendmsg+0x723/0xbe0 [ 3797.481452][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3797.481452][ T253] ___sys_sendmsg+0xee/0x170 [ 3797.481452][ T253] __sys_sendmsg+0xcd/0x170 [ 3797.481452][ T253] do_syscall_64+0xc6/0x1e0 [ 3797.481452][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3797.481452][ T253] [ 3797.483724][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3797.483724][ T253] netdev_get_by_index+0x5e/0x80 [ 3797.483724][ T253] fib6_nh_init+0x3d8/0x1580 [ 3797.483724][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3797.483724][ T253] ip6_route_add+0x1c/0x140 [ 3797.483724][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3797.483724][ T253] addrconf_add_dev+0xe2/0x170 [ 3797.483724][ T253] inet6_addr_add+0x12f/0xa40 [ 3797.483724][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3797.483724][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3797.483724][ T253] netlink_rcv_skb+0x130/0x360 [ 3797.483724][ T253] netlink_unicast+0x449/0x710 [ 3797.483724][ T253] netlink_sendmsg+0x723/0xbe0 [ 3797.483724][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3797.483724][ T253] ___sys_sendmsg+0xee/0x170 [ 3797.483724][ T253] __sys_sendmsg+0xcd/0x170 [ 3797.483724][ T253] do_syscall_64+0xc6/0x1e0 [ 3797.483724][ T253] [ 3797.485935][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3797.485935][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3797.485935][ T253] ipv6_find_idev+0x102/0x170 [ 3797.485935][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3797.485935][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3797.485935][ T253] netlink_rcv_skb+0x130/0x360 [ 3797.485935][ T253] netlink_unicast+0x449/0x710 [ 3797.485935][ T253] netlink_sendmsg+0x723/0xbe0 [ 3797.485935][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3797.485935][ T253] ___sys_sendmsg+0xee/0x170 [ 3797.485935][ T253] __sys_sendmsg+0xcd/0x170 [ 3797.485935][ T253] do_syscall_64+0xc6/0x1e0 [ 3797.485935][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3797.485935][ T253] [ 3797.487662][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3797.487662][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3797.487662][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3797.487662][ T253] ipv6_find_idev+0x102/0x170 [ 3797.487662][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3797.487662][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3797.487662][ T253] netlink_rcv_skb+0x130/0x360 [ 3797.487662][ T253] netlink_unicast+0x449/0x710 [ 3797.487662][ T253] netlink_sendmsg+0x723/0xbe0 [ 3797.487662][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3797.487662][ T253] ___sys_sendmsg+0xee/0x170 [ 3797.487662][ T253] __sys_sendmsg+0xcd/0x170 [ 3797.487662][ T253] do_syscall_64+0xc6/0x1e0 [ 3797.487662][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3797.487662][ T253] [ 3807.610241][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3807.610773][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3807.610773][ T253] dst_init+0x84/0x4a0 [ 3807.610773][ T253] dst_alloc+0x97/0x150 [ 3807.610773][ T253] ip6_dst_alloc+0x23/0x90 [ 3807.610773][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3807.610773][ T253] ip6_pol_route+0x56f/0x840 [ 3807.610773][ T253] fib6_rule_lookup+0x334/0x630 [ 3807.610773][ T253] ip6_route_output_flags+0x259/0x480 [ 3807.610773][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3807.610773][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3807.610773][ T253] netlink_rcv_skb+0x130/0x360 [ 3807.610773][ T253] netlink_unicast+0x449/0x710 [ 3807.610773][ T253] netlink_sendmsg+0x723/0xbe0 [ 3807.610773][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3807.610773][ T253] ___sys_sendmsg+0xee/0x170 [ 3807.610773][ T253] __sys_sendmsg+0xcd/0x170 [ 3807.610773][ T253] do_syscall_64+0xc6/0x1e0 [ 3807.610773][ T253] [ 3807.614327][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3807.614327][ T253] netdev_get_by_index+0x5e/0x80 [ 3807.614327][ T253] fib6_nh_init+0x3d8/0x1580 [ 3807.614327][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3807.614327][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3807.614327][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3807.614327][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3807.614327][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3807.614327][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3807.614327][ T253] addrconf_dad_begin+0x310/0x670 [ 3807.614327][ T253] addrconf_dad_work+0x10b/0xab0 [ 3807.614327][ T253] process_one_work+0x84d/0x18a0 [ 3807.614327][ T253] worker_thread+0x587/0xd30 [ 3807.614327][ T253] kthread+0x28a/0x350 [ 3807.614327][ T253] ret_from_fork+0x31/0x70 [ 3807.614327][ T253] ret_from_fork_asm+0x1a/0x30 [ 3807.614327][ T253] [ 3807.617251][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3807.617251][ T253] netdev_get_by_index+0x5e/0x80 [ 3807.617251][ T253] fib6_nh_init+0x3d8/0x1580 [ 3807.617251][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3807.617251][ T253] ip6_route_add+0x1c/0x140 [ 3807.617251][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3807.617251][ T253] inet6_addr_add+0x4f8/0xa40 [ 3807.617251][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3807.617251][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3807.617251][ T253] netlink_rcv_skb+0x130/0x360 [ 3807.617251][ T253] netlink_unicast+0x449/0x710 [ 3807.617251][ T253] netlink_sendmsg+0x723/0xbe0 [ 3807.617251][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3807.617251][ T253] ___sys_sendmsg+0xee/0x170 [ 3807.617251][ T253] __sys_sendmsg+0xcd/0x170 [ 3807.617251][ T253] do_syscall_64+0xc6/0x1e0 [ 3807.617251][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3807.617251][ T253] [ 3807.620690][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3807.620690][ T253] netdev_get_by_index+0x5e/0x80 [ 3807.620690][ T253] fib6_nh_init+0x3d8/0x1580 [ 3807.620690][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3807.620690][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3807.620690][ T253] ipv6_add_addr+0x411/0x2000 [ 3807.620690][ T253] inet6_addr_add+0x30e/0xa40 [ 3807.620690][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3807.620690][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3807.620690][ T253] netlink_rcv_skb+0x130/0x360 [ 3807.620690][ T253] netlink_unicast+0x449/0x710 [ 3807.620690][ T253] netlink_sendmsg+0x723/0xbe0 [ 3807.620690][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3807.620690][ T253] ___sys_sendmsg+0xee/0x170 [ 3807.620690][ T253] __sys_sendmsg+0xcd/0x170 [ 3807.620690][ T253] do_syscall_64+0xc6/0x1e0 [ 3807.620690][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3807.620690][ T253] [ 3807.623757][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3807.623757][ T253] netdev_get_by_index+0x5e/0x80 [ 3807.623757][ T253] fib6_nh_init+0x3d8/0x1580 [ 3807.623757][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3807.623757][ T253] ip6_route_add+0x1c/0x140 [ 3807.623757][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3807.623757][ T253] addrconf_add_dev+0xe2/0x170 [ 3807.623757][ T253] inet6_addr_add+0x12f/0xa40 [ 3807.623757][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3807.623757][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3807.623757][ T253] netlink_rcv_skb+0x130/0x360 [ 3807.623757][ T253] netlink_unicast+0x449/0x710 [ 3807.623757][ T253] netlink_sendmsg+0x723/0xbe0 [ 3807.623757][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3807.623757][ T253] ___sys_sendmsg+0xee/0x170 [ 3807.623757][ T253] __sys_sendmsg+0xcd/0x170 [ 3807.623757][ T253] do_syscall_64+0xc6/0x1e0 [ 3807.623757][ T253] [ 3807.626781][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3807.626781][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3807.626781][ T253] ipv6_find_idev+0x102/0x170 [ 3807.626781][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3807.626781][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3807.626781][ T253] netlink_rcv_skb+0x130/0x360 [ 3807.626781][ T253] netlink_unicast+0x449/0x710 [ 3807.626781][ T253] netlink_sendmsg+0x723/0xbe0 [ 3807.626781][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3807.626781][ T253] ___sys_sendmsg+0xee/0x170 [ 3807.626781][ T253] __sys_sendmsg+0xcd/0x170 [ 3807.626781][ T253] do_syscall_64+0xc6/0x1e0 [ 3807.626781][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3807.626781][ T253] [ 3807.629157][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3807.629157][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3807.629157][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3807.629157][ T253] ipv6_find_idev+0x102/0x170 [ 3807.629157][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3807.629157][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3807.629157][ T253] netlink_rcv_skb+0x130/0x360 [ 3807.629157][ T253] netlink_unicast+0x449/0x710 [ 3807.629157][ T253] netlink_sendmsg+0x723/0xbe0 [ 3807.629157][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3807.629157][ T253] ___sys_sendmsg+0xee/0x170 [ 3807.629157][ T253] __sys_sendmsg+0xcd/0x170 [ 3807.629157][ T253] do_syscall_64+0xc6/0x1e0 [ 3807.629157][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3807.629157][ T253] [ 3817.842367][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3817.842804][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3817.842804][ T253] dst_init+0x84/0x4a0 [ 3817.842804][ T253] dst_alloc+0x97/0x150 [ 3817.842804][ T253] ip6_dst_alloc+0x23/0x90 [ 3817.842804][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3817.842804][ T253] ip6_pol_route+0x56f/0x840 [ 3817.842804][ T253] fib6_rule_lookup+0x334/0x630 [ 3817.842804][ T253] ip6_route_output_flags+0x259/0x480 [ 3817.842804][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3817.842804][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3817.842804][ T253] netlink_rcv_skb+0x130/0x360 [ 3817.842804][ T253] netlink_unicast+0x449/0x710 [ 3817.842804][ T253] netlink_sendmsg+0x723/0xbe0 [ 3817.842804][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3817.842804][ T253] ___sys_sendmsg+0xee/0x170 [ 3817.842804][ T253] __sys_sendmsg+0xcd/0x170 [ 3817.842804][ T253] do_syscall_64+0xc6/0x1e0 [ 3817.842804][ T253] [ 3817.845125][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3817.845125][ T253] netdev_get_by_index+0x5e/0x80 [ 3817.845125][ T253] fib6_nh_init+0x3d8/0x1580 [ 3817.845125][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3817.845125][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3817.845125][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3817.845125][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3817.845125][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3817.845125][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3817.845125][ T253] addrconf_dad_begin+0x310/0x670 [ 3817.845125][ T253] addrconf_dad_work+0x10b/0xab0 [ 3817.845125][ T253] process_one_work+0x84d/0x18a0 [ 3817.845125][ T253] worker_thread+0x587/0xd30 [ 3817.845125][ T253] kthread+0x28a/0x350 [ 3817.845125][ T253] ret_from_fork+0x31/0x70 [ 3817.845125][ T253] ret_from_fork_asm+0x1a/0x30 [ 3817.845125][ T253] [ 3817.847289][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3817.847289][ T253] netdev_get_by_index+0x5e/0x80 [ 3817.847289][ T253] fib6_nh_init+0x3d8/0x1580 [ 3817.847289][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3817.847289][ T253] ip6_route_add+0x1c/0x140 [ 3817.847289][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3817.847289][ T253] inet6_addr_add+0x4f8/0xa40 [ 3817.847289][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3817.847289][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3817.847289][ T253] netlink_rcv_skb+0x130/0x360 [ 3817.847289][ T253] netlink_unicast+0x449/0x710 [ 3817.847289][ T253] netlink_sendmsg+0x723/0xbe0 [ 3817.847289][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3817.847289][ T253] ___sys_sendmsg+0xee/0x170 [ 3817.847289][ T253] __sys_sendmsg+0xcd/0x170 [ 3817.847289][ T253] do_syscall_64+0xc6/0x1e0 [ 3817.847289][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3817.847289][ T253] [ 3817.849551][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3817.849551][ T253] netdev_get_by_index+0x5e/0x80 [ 3817.849551][ T253] fib6_nh_init+0x3d8/0x1580 [ 3817.849551][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3817.849551][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3817.849551][ T253] ipv6_add_addr+0x411/0x2000 [ 3817.849551][ T253] inet6_addr_add+0x30e/0xa40 [ 3817.849551][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3817.849551][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3817.849551][ T253] netlink_rcv_skb+0x130/0x360 [ 3817.849551][ T253] netlink_unicast+0x449/0x710 [ 3817.849551][ T253] netlink_sendmsg+0x723/0xbe0 [ 3817.849551][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3817.849551][ T253] ___sys_sendmsg+0xee/0x170 [ 3817.849551][ T253] __sys_sendmsg+0xcd/0x170 [ 3817.849551][ T253] do_syscall_64+0xc6/0x1e0 [ 3817.849551][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3817.849551][ T253] [ 3817.851828][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3817.851828][ T253] netdev_get_by_index+0x5e/0x80 [ 3817.851828][ T253] fib6_nh_init+0x3d8/0x1580 [ 3817.851828][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3817.851828][ T253] ip6_route_add+0x1c/0x140 [ 3817.851828][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3817.851828][ T253] addrconf_add_dev+0xe2/0x170 [ 3817.851828][ T253] inet6_addr_add+0x12f/0xa40 [ 3817.851828][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3817.851828][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3817.851828][ T253] netlink_rcv_skb+0x130/0x360 [ 3817.851828][ T253] netlink_unicast+0x449/0x710 [ 3817.851828][ T253] netlink_sendmsg+0x723/0xbe0 [ 3817.851828][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3817.851828][ T253] ___sys_sendmsg+0xee/0x170 [ 3817.851828][ T253] __sys_sendmsg+0xcd/0x170 [ 3817.851828][ T253] do_syscall_64+0xc6/0x1e0 [ 3817.851828][ T253] [ 3817.854045][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3817.854045][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3817.854045][ T253] ipv6_find_idev+0x102/0x170 [ 3817.854045][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3817.854045][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3817.854045][ T253] netlink_rcv_skb+0x130/0x360 [ 3817.854045][ T253] netlink_unicast+0x449/0x710 [ 3817.854045][ T253] netlink_sendmsg+0x723/0xbe0 [ 3817.854045][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3817.854045][ T253] ___sys_sendmsg+0xee/0x170 [ 3817.854045][ T253] __sys_sendmsg+0xcd/0x170 [ 3817.854045][ T253] do_syscall_64+0xc6/0x1e0 [ 3817.854045][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3817.854045][ T253] [ 3817.855779][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3817.855779][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3817.855779][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3817.855779][ T253] ipv6_find_idev+0x102/0x170 [ 3817.855779][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3817.855779][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3817.855779][ T253] netlink_rcv_skb+0x130/0x360 [ 3817.855779][ T253] netlink_unicast+0x449/0x710 [ 3817.855779][ T253] netlink_sendmsg+0x723/0xbe0 [ 3817.855779][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3817.855779][ T253] ___sys_sendmsg+0xee/0x170 [ 3817.855779][ T253] __sys_sendmsg+0xcd/0x170 [ 3817.855779][ T253] do_syscall_64+0xc6/0x1e0 [ 3817.855779][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3817.855779][ T253] [ 3827.866291][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3827.866773][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3827.866773][ T253] dst_init+0x84/0x4a0 [ 3827.866773][ T253] dst_alloc+0x97/0x150 [ 3827.866773][ T253] ip6_dst_alloc+0x23/0x90 [ 3827.866773][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3827.866773][ T253] ip6_pol_route+0x56f/0x840 [ 3827.866773][ T253] fib6_rule_lookup+0x334/0x630 [ 3827.866773][ T253] ip6_route_output_flags+0x259/0x480 [ 3827.866773][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3827.866773][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3827.866773][ T253] netlink_rcv_skb+0x130/0x360 [ 3827.866773][ T253] netlink_unicast+0x449/0x710 [ 3827.866773][ T253] netlink_sendmsg+0x723/0xbe0 [ 3827.866773][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3827.866773][ T253] ___sys_sendmsg+0xee/0x170 [ 3827.866773][ T253] __sys_sendmsg+0xcd/0x170 [ 3827.866773][ T253] do_syscall_64+0xc6/0x1e0 [ 3827.866773][ T253] [ 3827.868997][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3827.868997][ T253] netdev_get_by_index+0x5e/0x80 [ 3827.868997][ T253] fib6_nh_init+0x3d8/0x1580 [ 3827.868997][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3827.868997][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3827.868997][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3827.868997][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3827.868997][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3827.868997][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3827.868997][ T253] addrconf_dad_begin+0x310/0x670 [ 3827.868997][ T253] addrconf_dad_work+0x10b/0xab0 [ 3827.868997][ T253] process_one_work+0x84d/0x18a0 [ 3827.868997][ T253] worker_thread+0x587/0xd30 [ 3827.868997][ T253] kthread+0x28a/0x350 [ 3827.868997][ T253] ret_from_fork+0x31/0x70 [ 3827.868997][ T253] ret_from_fork_asm+0x1a/0x30 [ 3827.868997][ T253] [ 3827.871155][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3827.871155][ T253] netdev_get_by_index+0x5e/0x80 [ 3827.871155][ T253] fib6_nh_init+0x3d8/0x1580 [ 3827.871155][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3827.871155][ T253] ip6_route_add+0x1c/0x140 [ 3827.871155][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3827.871155][ T253] inet6_addr_add+0x4f8/0xa40 [ 3827.871155][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3827.871155][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3827.871155][ T253] netlink_rcv_skb+0x130/0x360 [ 3827.871155][ T253] netlink_unicast+0x449/0x710 [ 3827.871155][ T253] netlink_sendmsg+0x723/0xbe0 [ 3827.871155][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3827.871155][ T253] ___sys_sendmsg+0xee/0x170 [ 3827.871155][ T253] __sys_sendmsg+0xcd/0x170 [ 3827.871155][ T253] do_syscall_64+0xc6/0x1e0 [ 3827.871155][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3827.871155][ T253] [ 3827.873431][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3827.873431][ T253] netdev_get_by_index+0x5e/0x80 [ 3827.873431][ T253] fib6_nh_init+0x3d8/0x1580 [ 3827.873431][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3827.873431][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3827.873431][ T253] ipv6_add_addr+0x411/0x2000 [ 3827.873431][ T253] inet6_addr_add+0x30e/0xa40 [ 3827.873431][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3827.873431][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3827.873431][ T253] netlink_rcv_skb+0x130/0x360 [ 3827.873431][ T253] netlink_unicast+0x449/0x710 [ 3827.873431][ T253] netlink_sendmsg+0x723/0xbe0 [ 3827.873431][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3827.873431][ T253] ___sys_sendmsg+0xee/0x170 [ 3827.873431][ T253] __sys_sendmsg+0xcd/0x170 [ 3827.873431][ T253] do_syscall_64+0xc6/0x1e0 [ 3827.873431][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3827.873431][ T253] [ 3827.875689][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3827.875689][ T253] netdev_get_by_index+0x5e/0x80 [ 3827.875689][ T253] fib6_nh_init+0x3d8/0x1580 [ 3827.875689][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3827.875689][ T253] ip6_route_add+0x1c/0x140 [ 3827.875689][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3827.875689][ T253] addrconf_add_dev+0xe2/0x170 [ 3827.875689][ T253] inet6_addr_add+0x12f/0xa40 [ 3827.875689][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3827.875689][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3827.875689][ T253] netlink_rcv_skb+0x130/0x360 [ 3827.875689][ T253] netlink_unicast+0x449/0x710 [ 3827.875689][ T253] netlink_sendmsg+0x723/0xbe0 [ 3827.875689][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3827.875689][ T253] ___sys_sendmsg+0xee/0x170 [ 3827.875689][ T253] __sys_sendmsg+0xcd/0x170 [ 3827.875689][ T253] do_syscall_64+0xc6/0x1e0 [ 3827.875689][ T253] [ 3827.877939][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3827.877939][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3827.877939][ T253] ipv6_find_idev+0x102/0x170 [ 3827.877939][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3827.877939][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3827.877939][ T253] netlink_rcv_skb+0x130/0x360 [ 3827.877939][ T253] netlink_unicast+0x449/0x710 [ 3827.877939][ T253] netlink_sendmsg+0x723/0xbe0 [ 3827.877939][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3827.877939][ T253] ___sys_sendmsg+0xee/0x170 [ 3827.877939][ T253] __sys_sendmsg+0xcd/0x170 [ 3827.877939][ T253] do_syscall_64+0xc6/0x1e0 [ 3827.877939][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3827.877939][ T253] [ 3827.879681][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3827.879681][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3827.879681][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3827.879681][ T253] ipv6_find_idev+0x102/0x170 [ 3827.879681][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3827.879681][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3827.879681][ T253] netlink_rcv_skb+0x130/0x360 [ 3827.879681][ T253] netlink_unicast+0x449/0x710 [ 3827.879681][ T253] netlink_sendmsg+0x723/0xbe0 [ 3827.879681][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3827.879681][ T253] ___sys_sendmsg+0xee/0x170 [ 3827.879681][ T253] __sys_sendmsg+0xcd/0x170 [ 3827.879681][ T253] do_syscall_64+0xc6/0x1e0 [ 3827.879681][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3827.879681][ T253] [ 3838.122301][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3838.122726][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3838.122726][ T253] dst_init+0x84/0x4a0 [ 3838.122726][ T253] dst_alloc+0x97/0x150 [ 3838.122726][ T253] ip6_dst_alloc+0x23/0x90 [ 3838.122726][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3838.122726][ T253] ip6_pol_route+0x56f/0x840 [ 3838.122726][ T253] fib6_rule_lookup+0x334/0x630 [ 3838.122726][ T253] ip6_route_output_flags+0x259/0x480 [ 3838.122726][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3838.122726][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3838.122726][ T253] netlink_rcv_skb+0x130/0x360 [ 3838.122726][ T253] netlink_unicast+0x449/0x710 [ 3838.122726][ T253] netlink_sendmsg+0x723/0xbe0 [ 3838.122726][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3838.122726][ T253] ___sys_sendmsg+0xee/0x170 [ 3838.122726][ T253] __sys_sendmsg+0xcd/0x170 [ 3838.122726][ T253] do_syscall_64+0xc6/0x1e0 [ 3838.122726][ T253] [ 3838.124954][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3838.124954][ T253] netdev_get_by_index+0x5e/0x80 [ 3838.124954][ T253] fib6_nh_init+0x3d8/0x1580 [ 3838.124954][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3838.124954][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3838.124954][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3838.124954][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3838.124954][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3838.124954][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3838.124954][ T253] addrconf_dad_begin+0x310/0x670 [ 3838.124954][ T253] addrconf_dad_work+0x10b/0xab0 [ 3838.124954][ T253] process_one_work+0x84d/0x18a0 [ 3838.124954][ T253] worker_thread+0x587/0xd30 [ 3838.124954][ T253] kthread+0x28a/0x350 [ 3838.124954][ T253] ret_from_fork+0x31/0x70 [ 3838.124954][ T253] ret_from_fork_asm+0x1a/0x30 [ 3838.124954][ T253] [ 3838.127127][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3838.127127][ T253] netdev_get_by_index+0x5e/0x80 [ 3838.127127][ T253] fib6_nh_init+0x3d8/0x1580 [ 3838.127127][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3838.127127][ T253] ip6_route_add+0x1c/0x140 [ 3838.127127][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3838.127127][ T253] inet6_addr_add+0x4f8/0xa40 [ 3838.127127][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3838.127127][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3838.127127][ T253] netlink_rcv_skb+0x130/0x360 [ 3838.127127][ T253] netlink_unicast+0x449/0x710 [ 3838.127127][ T253] netlink_sendmsg+0x723/0xbe0 [ 3838.127127][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3838.127127][ T253] ___sys_sendmsg+0xee/0x170 [ 3838.127127][ T253] __sys_sendmsg+0xcd/0x170 [ 3838.127127][ T253] do_syscall_64+0xc6/0x1e0 [ 3838.127127][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3838.127127][ T253] [ 3838.129406][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3838.129406][ T253] netdev_get_by_index+0x5e/0x80 [ 3838.129406][ T253] fib6_nh_init+0x3d8/0x1580 [ 3838.129406][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3838.129406][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3838.129406][ T253] ipv6_add_addr+0x411/0x2000 [ 3838.129406][ T253] inet6_addr_add+0x30e/0xa40 [ 3838.129406][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3838.129406][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3838.129406][ T253] netlink_rcv_skb+0x130/0x360 [ 3838.129406][ T253] netlink_unicast+0x449/0x710 [ 3838.129406][ T253] netlink_sendmsg+0x723/0xbe0 [ 3838.129406][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3838.129406][ T253] ___sys_sendmsg+0xee/0x170 [ 3838.129406][ T253] __sys_sendmsg+0xcd/0x170 [ 3838.129406][ T253] do_syscall_64+0xc6/0x1e0 [ 3838.129406][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3838.129406][ T253] [ 3838.131796][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3838.131796][ T253] netdev_get_by_index+0x5e/0x80 [ 3838.131796][ T253] fib6_nh_init+0x3d8/0x1580 [ 3838.131796][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3838.131796][ T253] ip6_route_add+0x1c/0x140 [ 3838.131796][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3838.131796][ T253] addrconf_add_dev+0xe2/0x170 [ 3838.131796][ T253] inet6_addr_add+0x12f/0xa40 [ 3838.131796][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3838.131796][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3838.131796][ T253] netlink_rcv_skb+0x130/0x360 [ 3838.131796][ T253] netlink_unicast+0x449/0x710 [ 3838.131796][ T253] netlink_sendmsg+0x723/0xbe0 [ 3838.131796][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3838.131796][ T253] ___sys_sendmsg+0xee/0x170 [ 3838.131796][ T253] __sys_sendmsg+0xcd/0x170 [ 3838.131796][ T253] do_syscall_64+0xc6/0x1e0 [ 3838.131796][ T253] [ 3838.134540][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3838.134540][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3838.134540][ T253] ipv6_find_idev+0x102/0x170 [ 3838.134540][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3838.134540][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3838.134540][ T253] netlink_rcv_skb+0x130/0x360 [ 3838.134540][ T253] netlink_unicast+0x449/0x710 [ 3838.134540][ T253] netlink_sendmsg+0x723/0xbe0 [ 3838.134540][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3838.134540][ T253] ___sys_sendmsg+0xee/0x170 [ 3838.134540][ T253] __sys_sendmsg+0xcd/0x170 [ 3838.134540][ T253] do_syscall_64+0xc6/0x1e0 [ 3838.134540][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3838.134540][ T253] [ 3838.136287][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3838.136287][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3838.136287][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3838.136287][ T253] ipv6_find_idev+0x102/0x170 [ 3838.136287][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3838.136287][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3838.136287][ T253] netlink_rcv_skb+0x130/0x360 [ 3838.136287][ T253] netlink_unicast+0x449/0x710 [ 3838.136287][ T253] netlink_sendmsg+0x723/0xbe0 [ 3838.136287][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3838.136287][ T253] ___sys_sendmsg+0xee/0x170 [ 3838.136287][ T253] __sys_sendmsg+0xcd/0x170 [ 3838.136287][ T253] do_syscall_64+0xc6/0x1e0 [ 3838.136287][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3838.136287][ T253] [ 3848.378294][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3848.378778][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3848.378778][ T253] dst_init+0x84/0x4a0 [ 3848.378778][ T253] dst_alloc+0x97/0x150 [ 3848.378778][ T253] ip6_dst_alloc+0x23/0x90 [ 3848.378778][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3848.378778][ T253] ip6_pol_route+0x56f/0x840 [ 3848.378778][ T253] fib6_rule_lookup+0x334/0x630 [ 3848.378778][ T253] ip6_route_output_flags+0x259/0x480 [ 3848.378778][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3848.378778][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3848.378778][ T253] netlink_rcv_skb+0x130/0x360 [ 3848.378778][ T253] netlink_unicast+0x449/0x710 [ 3848.378778][ T253] netlink_sendmsg+0x723/0xbe0 [ 3848.378778][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3848.378778][ T253] ___sys_sendmsg+0xee/0x170 [ 3848.378778][ T253] __sys_sendmsg+0xcd/0x170 [ 3848.378778][ T253] do_syscall_64+0xc6/0x1e0 [ 3848.378778][ T253] [ 3848.380996][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3848.380996][ T253] netdev_get_by_index+0x5e/0x80 [ 3848.380996][ T253] fib6_nh_init+0x3d8/0x1580 [ 3848.380996][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3848.380996][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3848.380996][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3848.380996][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3848.380996][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3848.380996][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3848.380996][ T253] addrconf_dad_begin+0x310/0x670 [ 3848.380996][ T253] addrconf_dad_work+0x10b/0xab0 [ 3848.380996][ T253] process_one_work+0x84d/0x18a0 [ 3848.380996][ T253] worker_thread+0x587/0xd30 [ 3848.380996][ T253] kthread+0x28a/0x350 [ 3848.380996][ T253] ret_from_fork+0x31/0x70 [ 3848.380996][ T253] ret_from_fork_asm+0x1a/0x30 [ 3848.380996][ T253] [ 3848.383168][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3848.383168][ T253] netdev_get_by_index+0x5e/0x80 [ 3848.383168][ T253] fib6_nh_init+0x3d8/0x1580 [ 3848.383168][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3848.383168][ T253] ip6_route_add+0x1c/0x140 [ 3848.383168][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3848.383168][ T253] inet6_addr_add+0x4f8/0xa40 [ 3848.383168][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3848.383168][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3848.383168][ T253] netlink_rcv_skb+0x130/0x360 [ 3848.383168][ T253] netlink_unicast+0x449/0x710 [ 3848.383168][ T253] netlink_sendmsg+0x723/0xbe0 [ 3848.383168][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3848.383168][ T253] ___sys_sendmsg+0xee/0x170 [ 3848.383168][ T253] __sys_sendmsg+0xcd/0x170 [ 3848.383168][ T253] do_syscall_64+0xc6/0x1e0 [ 3848.383168][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3848.383168][ T253] [ 3848.385422][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3848.385422][ T253] netdev_get_by_index+0x5e/0x80 [ 3848.385422][ T253] fib6_nh_init+0x3d8/0x1580 [ 3848.385422][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3848.385422][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3848.385422][ T253] ipv6_add_addr+0x411/0x2000 [ 3848.385422][ T253] inet6_addr_add+0x30e/0xa40 [ 3848.385422][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3848.385422][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3848.385422][ T253] netlink_rcv_skb+0x130/0x360 [ 3848.385422][ T253] netlink_unicast+0x449/0x710 [ 3848.385422][ T253] netlink_sendmsg+0x723/0xbe0 [ 3848.385422][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3848.385422][ T253] ___sys_sendmsg+0xee/0x170 [ 3848.385422][ T253] __sys_sendmsg+0xcd/0x170 [ 3848.385422][ T253] do_syscall_64+0xc6/0x1e0 [ 3848.385422][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3848.385422][ T253] [ 3848.387682][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3848.387682][ T253] netdev_get_by_index+0x5e/0x80 [ 3848.387682][ T253] fib6_nh_init+0x3d8/0x1580 [ 3848.387682][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3848.387682][ T253] ip6_route_add+0x1c/0x140 [ 3848.387682][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3848.387682][ T253] addrconf_add_dev+0xe2/0x170 [ 3848.387682][ T253] inet6_addr_add+0x12f/0xa40 [ 3848.387682][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3848.387682][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3848.387682][ T253] netlink_rcv_skb+0x130/0x360 [ 3848.387682][ T253] netlink_unicast+0x449/0x710 [ 3848.387682][ T253] netlink_sendmsg+0x723/0xbe0 [ 3848.387682][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3848.387682][ T253] ___sys_sendmsg+0xee/0x170 [ 3848.387682][ T253] __sys_sendmsg+0xcd/0x170 [ 3848.387682][ T253] do_syscall_64+0xc6/0x1e0 [ 3848.387682][ T253] [ 3848.389974][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3848.389974][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3848.389974][ T253] ipv6_find_idev+0x102/0x170 [ 3848.389974][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3848.389974][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3848.389974][ T253] netlink_rcv_skb+0x130/0x360 [ 3848.389974][ T253] netlink_unicast+0x449/0x710 [ 3848.389974][ T253] netlink_sendmsg+0x723/0xbe0 [ 3848.389974][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3848.389974][ T253] ___sys_sendmsg+0xee/0x170 [ 3848.389974][ T253] __sys_sendmsg+0xcd/0x170 [ 3848.389974][ T253] do_syscall_64+0xc6/0x1e0 [ 3848.389974][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3848.389974][ T253] [ 3848.391718][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3848.391718][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3848.391718][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3848.391718][ T253] ipv6_find_idev+0x102/0x170 [ 3848.391718][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3848.391718][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3848.391718][ T253] netlink_rcv_skb+0x130/0x360 [ 3848.391718][ T253] netlink_unicast+0x449/0x710 [ 3848.391718][ T253] netlink_sendmsg+0x723/0xbe0 [ 3848.391718][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3848.391718][ T253] ___sys_sendmsg+0xee/0x170 [ 3848.391718][ T253] __sys_sendmsg+0xcd/0x170 [ 3848.391718][ T253] do_syscall_64+0xc6/0x1e0 [ 3848.391718][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3848.391718][ T253] [ 3858.842416][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3858.842939][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3858.842939][ T253] dst_init+0x84/0x4a0 [ 3858.842939][ T253] dst_alloc+0x97/0x150 [ 3858.842939][ T253] ip6_dst_alloc+0x23/0x90 [ 3858.842939][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3858.842939][ T253] ip6_pol_route+0x56f/0x840 [ 3858.842939][ T253] fib6_rule_lookup+0x334/0x630 [ 3858.842939][ T253] ip6_route_output_flags+0x259/0x480 [ 3858.842939][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3858.842939][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3858.842939][ T253] netlink_rcv_skb+0x130/0x360 [ 3858.842939][ T253] netlink_unicast+0x449/0x710 [ 3858.842939][ T253] netlink_sendmsg+0x723/0xbe0 [ 3858.842939][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3858.842939][ T253] ___sys_sendmsg+0xee/0x170 [ 3858.842939][ T253] __sys_sendmsg+0xcd/0x170 [ 3858.842939][ T253] do_syscall_64+0xc6/0x1e0 [ 3858.842939][ T253] [ 3858.845162][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3858.845162][ T253] netdev_get_by_index+0x5e/0x80 [ 3858.845162][ T253] fib6_nh_init+0x3d8/0x1580 [ 3858.845162][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3858.845162][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3858.845162][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3858.845162][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3858.845162][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3858.845162][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3858.845162][ T253] addrconf_dad_begin+0x310/0x670 [ 3858.845162][ T253] addrconf_dad_work+0x10b/0xab0 [ 3858.845162][ T253] process_one_work+0x84d/0x18a0 [ 3858.845162][ T253] worker_thread+0x587/0xd30 [ 3858.845162][ T253] kthread+0x28a/0x350 [ 3858.845162][ T253] ret_from_fork+0x31/0x70 [ 3858.845162][ T253] ret_from_fork_asm+0x1a/0x30 [ 3858.845162][ T253] [ 3858.847325][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3858.847325][ T253] netdev_get_by_index+0x5e/0x80 [ 3858.847325][ T253] fib6_nh_init+0x3d8/0x1580 [ 3858.847325][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3858.847325][ T253] ip6_route_add+0x1c/0x140 [ 3858.847325][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3858.847325][ T253] inet6_addr_add+0x4f8/0xa40 [ 3858.847325][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3858.847325][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3858.847325][ T253] netlink_rcv_skb+0x130/0x360 [ 3858.847325][ T253] netlink_unicast+0x449/0x710 [ 3858.847325][ T253] netlink_sendmsg+0x723/0xbe0 [ 3858.847325][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3858.847325][ T253] ___sys_sendmsg+0xee/0x170 [ 3858.847325][ T253] __sys_sendmsg+0xcd/0x170 [ 3858.847325][ T253] do_syscall_64+0xc6/0x1e0 [ 3858.847325][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3858.847325][ T253] [ 3858.849583][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3858.849583][ T253] netdev_get_by_index+0x5e/0x80 [ 3858.849583][ T253] fib6_nh_init+0x3d8/0x1580 [ 3858.849583][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3858.849583][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3858.849583][ T253] ipv6_add_addr+0x411/0x2000 [ 3858.849583][ T253] inet6_addr_add+0x30e/0xa40 [ 3858.849583][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3858.849583][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3858.849583][ T253] netlink_rcv_skb+0x130/0x360 [ 3858.849583][ T253] netlink_unicast+0x449/0x710 [ 3858.849583][ T253] netlink_sendmsg+0x723/0xbe0 [ 3858.849583][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3858.849583][ T253] ___sys_sendmsg+0xee/0x170 [ 3858.849583][ T253] __sys_sendmsg+0xcd/0x170 [ 3858.849583][ T253] do_syscall_64+0xc6/0x1e0 [ 3858.849583][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3858.849583][ T253] [ 3858.851886][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3858.851886][ T253] netdev_get_by_index+0x5e/0x80 [ 3858.851886][ T253] fib6_nh_init+0x3d8/0x1580 [ 3858.851886][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3858.851886][ T253] ip6_route_add+0x1c/0x140 [ 3858.851886][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3858.851886][ T253] addrconf_add_dev+0xe2/0x170 [ 3858.851886][ T253] inet6_addr_add+0x12f/0xa40 [ 3858.851886][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3858.851886][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3858.851886][ T253] netlink_rcv_skb+0x130/0x360 [ 3858.851886][ T253] netlink_unicast+0x449/0x710 [ 3858.851886][ T253] netlink_sendmsg+0x723/0xbe0 [ 3858.851886][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3858.851886][ T253] ___sys_sendmsg+0xee/0x170 [ 3858.851886][ T253] __sys_sendmsg+0xcd/0x170 [ 3858.851886][ T253] do_syscall_64+0xc6/0x1e0 [ 3858.851886][ T253] [ 3858.854130][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3858.854130][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3858.854130][ T253] ipv6_find_idev+0x102/0x170 [ 3858.854130][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3858.854130][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3858.854130][ T253] netlink_rcv_skb+0x130/0x360 [ 3858.854130][ T253] netlink_unicast+0x449/0x710 [ 3858.854130][ T253] netlink_sendmsg+0x723/0xbe0 [ 3858.854130][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3858.854130][ T253] ___sys_sendmsg+0xee/0x170 [ 3858.854130][ T253] __sys_sendmsg+0xcd/0x170 [ 3858.854130][ T253] do_syscall_64+0xc6/0x1e0 [ 3858.854130][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3858.854130][ T253] [ 3858.855872][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3858.855872][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3858.855872][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3858.855872][ T253] ipv6_find_idev+0x102/0x170 [ 3858.855872][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3858.855872][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3858.855872][ T253] netlink_rcv_skb+0x130/0x360 [ 3858.855872][ T253] netlink_unicast+0x449/0x710 [ 3858.855872][ T253] netlink_sendmsg+0x723/0xbe0 [ 3858.855872][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3858.855872][ T253] ___sys_sendmsg+0xee/0x170 [ 3858.855872][ T253] __sys_sendmsg+0xcd/0x170 [ 3858.855872][ T253] do_syscall_64+0xc6/0x1e0 [ 3858.855872][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3858.855872][ T253] [ 3869.098235][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3869.098709][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3869.098709][ T253] dst_init+0x84/0x4a0 [ 3869.098709][ T253] dst_alloc+0x97/0x150 [ 3869.098709][ T253] ip6_dst_alloc+0x23/0x90 [ 3869.098709][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3869.098709][ T253] ip6_pol_route+0x56f/0x840 [ 3869.098709][ T253] fib6_rule_lookup+0x334/0x630 [ 3869.098709][ T253] ip6_route_output_flags+0x259/0x480 [ 3869.098709][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3869.098709][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3869.098709][ T253] netlink_rcv_skb+0x130/0x360 [ 3869.098709][ T253] netlink_unicast+0x449/0x710 [ 3869.098709][ T253] netlink_sendmsg+0x723/0xbe0 [ 3869.098709][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3869.098709][ T253] ___sys_sendmsg+0xee/0x170 [ 3869.098709][ T253] __sys_sendmsg+0xcd/0x170 [ 3869.098709][ T253] do_syscall_64+0xc6/0x1e0 [ 3869.098709][ T253] [ 3869.100908][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3869.100908][ T253] netdev_get_by_index+0x5e/0x80 [ 3869.100908][ T253] fib6_nh_init+0x3d8/0x1580 [ 3869.100908][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3869.100908][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3869.100908][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3869.100908][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3869.100908][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3869.100908][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3869.100908][ T253] addrconf_dad_begin+0x310/0x670 [ 3869.100908][ T253] addrconf_dad_work+0x10b/0xab0 [ 3869.100908][ T253] process_one_work+0x84d/0x18a0 [ 3869.100908][ T253] worker_thread+0x587/0xd30 [ 3869.100908][ T253] kthread+0x28a/0x350 [ 3869.100908][ T253] ret_from_fork+0x31/0x70 [ 3869.100908][ T253] ret_from_fork_asm+0x1a/0x30 [ 3869.100908][ T253] [ 3869.103052][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3869.103052][ T253] netdev_get_by_index+0x5e/0x80 [ 3869.103052][ T253] fib6_nh_init+0x3d8/0x1580 [ 3869.103052][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3869.103052][ T253] ip6_route_add+0x1c/0x140 [ 3869.103052][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3869.103052][ T253] inet6_addr_add+0x4f8/0xa40 [ 3869.103052][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3869.103052][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3869.103052][ T253] netlink_rcv_skb+0x130/0x360 [ 3869.103052][ T253] netlink_unicast+0x449/0x710 [ 3869.103052][ T253] netlink_sendmsg+0x723/0xbe0 [ 3869.103052][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3869.103052][ T253] ___sys_sendmsg+0xee/0x170 [ 3869.103052][ T253] __sys_sendmsg+0xcd/0x170 [ 3869.103052][ T253] do_syscall_64+0xc6/0x1e0 [ 3869.103052][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3869.103052][ T253] [ 3869.105287][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3869.105287][ T253] netdev_get_by_index+0x5e/0x80 [ 3869.105287][ T253] fib6_nh_init+0x3d8/0x1580 [ 3869.105287][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3869.105287][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3869.105287][ T253] ipv6_add_addr+0x411/0x2000 [ 3869.105287][ T253] inet6_addr_add+0x30e/0xa40 [ 3869.105287][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3869.105287][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3869.105287][ T253] netlink_rcv_skb+0x130/0x360 [ 3869.105287][ T253] netlink_unicast+0x449/0x710 [ 3869.105287][ T253] netlink_sendmsg+0x723/0xbe0 [ 3869.105287][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3869.105287][ T253] ___sys_sendmsg+0xee/0x170 [ 3869.105287][ T253] __sys_sendmsg+0xcd/0x170 [ 3869.105287][ T253] do_syscall_64+0xc6/0x1e0 [ 3869.105287][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3869.105287][ T253] [ 3869.107517][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3869.107517][ T253] netdev_get_by_index+0x5e/0x80 [ 3869.107517][ T253] fib6_nh_init+0x3d8/0x1580 [ 3869.107517][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3869.107517][ T253] ip6_route_add+0x1c/0x140 [ 3869.107517][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3869.107517][ T253] addrconf_add_dev+0xe2/0x170 [ 3869.107517][ T253] inet6_addr_add+0x12f/0xa40 [ 3869.107517][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3869.107517][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3869.107517][ T253] netlink_rcv_skb+0x130/0x360 [ 3869.107517][ T253] netlink_unicast+0x449/0x710 [ 3869.107517][ T253] netlink_sendmsg+0x723/0xbe0 [ 3869.107517][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3869.107517][ T253] ___sys_sendmsg+0xee/0x170 [ 3869.107517][ T253] __sys_sendmsg+0xcd/0x170 [ 3869.107517][ T253] do_syscall_64+0xc6/0x1e0 [ 3869.107517][ T253] [ 3869.109709][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3869.109709][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3869.109709][ T253] ipv6_find_idev+0x102/0x170 [ 3869.109709][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3869.109709][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3869.109709][ T253] netlink_rcv_skb+0x130/0x360 [ 3869.109709][ T253] netlink_unicast+0x449/0x710 [ 3869.109709][ T253] netlink_sendmsg+0x723/0xbe0 [ 3869.109709][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3869.109709][ T253] ___sys_sendmsg+0xee/0x170 [ 3869.109709][ T253] __sys_sendmsg+0xcd/0x170 [ 3869.109709][ T253] do_syscall_64+0xc6/0x1e0 [ 3869.109709][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3869.109709][ T253] [ 3869.111449][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3869.111449][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3869.111449][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3869.111449][ T253] ipv6_find_idev+0x102/0x170 [ 3869.111449][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3869.111449][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3869.111449][ T253] netlink_rcv_skb+0x130/0x360 [ 3869.111449][ T253] netlink_unicast+0x449/0x710 [ 3869.111449][ T253] netlink_sendmsg+0x723/0xbe0 [ 3869.111449][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3869.111449][ T253] ___sys_sendmsg+0xee/0x170 [ 3869.111449][ T253] __sys_sendmsg+0xcd/0x170 [ 3869.111449][ T253] do_syscall_64+0xc6/0x1e0 [ 3869.111449][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3869.111449][ T253] [ 3879.194250][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3879.194747][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3879.194747][ T253] dst_init+0x84/0x4a0 [ 3879.194747][ T253] dst_alloc+0x97/0x150 [ 3879.194747][ T253] ip6_dst_alloc+0x23/0x90 [ 3879.194747][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3879.194747][ T253] ip6_pol_route+0x56f/0x840 [ 3879.194747][ T253] fib6_rule_lookup+0x334/0x630 [ 3879.194747][ T253] ip6_route_output_flags+0x259/0x480 [ 3879.194747][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3879.194747][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3879.194747][ T253] netlink_rcv_skb+0x130/0x360 [ 3879.194747][ T253] netlink_unicast+0x449/0x710 [ 3879.194747][ T253] netlink_sendmsg+0x723/0xbe0 [ 3879.194747][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3879.194747][ T253] ___sys_sendmsg+0xee/0x170 [ 3879.194747][ T253] __sys_sendmsg+0xcd/0x170 [ 3879.194747][ T253] do_syscall_64+0xc6/0x1e0 [ 3879.194747][ T253] [ 3879.196948][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3879.196948][ T253] netdev_get_by_index+0x5e/0x80 [ 3879.196948][ T253] fib6_nh_init+0x3d8/0x1580 [ 3879.196948][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3879.196948][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3879.196948][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3879.196948][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3879.196948][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3879.196948][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3879.196948][ T253] addrconf_dad_begin+0x310/0x670 [ 3879.196948][ T253] addrconf_dad_work+0x10b/0xab0 [ 3879.196948][ T253] process_one_work+0x84d/0x18a0 [ 3879.196948][ T253] worker_thread+0x587/0xd30 [ 3879.196948][ T253] kthread+0x28a/0x350 [ 3879.196948][ T253] ret_from_fork+0x31/0x70 [ 3879.196948][ T253] ret_from_fork_asm+0x1a/0x30 [ 3879.196948][ T253] [ 3879.199080][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3879.199080][ T253] netdev_get_by_index+0x5e/0x80 [ 3879.199080][ T253] fib6_nh_init+0x3d8/0x1580 [ 3879.199080][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3879.199080][ T253] ip6_route_add+0x1c/0x140 [ 3879.199080][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3879.199080][ T253] inet6_addr_add+0x4f8/0xa40 [ 3879.199080][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3879.199080][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3879.199080][ T253] netlink_rcv_skb+0x130/0x360 [ 3879.199080][ T253] netlink_unicast+0x449/0x710 [ 3879.199080][ T253] netlink_sendmsg+0x723/0xbe0 [ 3879.199080][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3879.199080][ T253] ___sys_sendmsg+0xee/0x170 [ 3879.199080][ T253] __sys_sendmsg+0xcd/0x170 [ 3879.199080][ T253] do_syscall_64+0xc6/0x1e0 [ 3879.199080][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3879.199080][ T253] [ 3879.201328][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3879.201328][ T253] netdev_get_by_index+0x5e/0x80 [ 3879.201328][ T253] fib6_nh_init+0x3d8/0x1580 [ 3879.201328][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3879.201328][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3879.201328][ T253] ipv6_add_addr+0x411/0x2000 [ 3879.201328][ T253] inet6_addr_add+0x30e/0xa40 [ 3879.201328][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3879.201328][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3879.201328][ T253] netlink_rcv_skb+0x130/0x360 [ 3879.201328][ T253] netlink_unicast+0x449/0x710 [ 3879.201328][ T253] netlink_sendmsg+0x723/0xbe0 [ 3879.201328][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3879.201328][ T253] ___sys_sendmsg+0xee/0x170 [ 3879.201328][ T253] __sys_sendmsg+0xcd/0x170 [ 3879.201328][ T253] do_syscall_64+0xc6/0x1e0 [ 3879.201328][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3879.201328][ T253] [ 3879.203565][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3879.203565][ T253] netdev_get_by_index+0x5e/0x80 [ 3879.203565][ T253] fib6_nh_init+0x3d8/0x1580 [ 3879.203565][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3879.203565][ T253] ip6_route_add+0x1c/0x140 [ 3879.203565][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3879.203565][ T253] addrconf_add_dev+0xe2/0x170 [ 3879.203565][ T253] inet6_addr_add+0x12f/0xa40 [ 3879.203565][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3879.203565][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3879.203565][ T253] netlink_rcv_skb+0x130/0x360 [ 3879.203565][ T253] netlink_unicast+0x449/0x710 [ 3879.203565][ T253] netlink_sendmsg+0x723/0xbe0 [ 3879.203565][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3879.203565][ T253] ___sys_sendmsg+0xee/0x170 [ 3879.203565][ T253] __sys_sendmsg+0xcd/0x170 [ 3879.203565][ T253] do_syscall_64+0xc6/0x1e0 [ 3879.203565][ T253] [ 3879.205760][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3879.205760][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3879.205760][ T253] ipv6_find_idev+0x102/0x170 [ 3879.205760][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3879.205760][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3879.205760][ T253] netlink_rcv_skb+0x130/0x360 [ 3879.205760][ T253] netlink_unicast+0x449/0x710 [ 3879.205760][ T253] netlink_sendmsg+0x723/0xbe0 [ 3879.205760][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3879.205760][ T253] ___sys_sendmsg+0xee/0x170 [ 3879.205760][ T253] __sys_sendmsg+0xcd/0x170 [ 3879.205760][ T253] do_syscall_64+0xc6/0x1e0 [ 3879.205760][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3879.205760][ T253] [ 3879.207487][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3879.207487][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3879.207487][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3879.207487][ T253] ipv6_find_idev+0x102/0x170 [ 3879.207487][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3879.207487][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3879.207487][ T253] netlink_rcv_skb+0x130/0x360 [ 3879.207487][ T253] netlink_unicast+0x449/0x710 [ 3879.207487][ T253] netlink_sendmsg+0x723/0xbe0 [ 3879.207487][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3879.207487][ T253] ___sys_sendmsg+0xee/0x170 [ 3879.207487][ T253] __sys_sendmsg+0xcd/0x170 [ 3879.207487][ T253] do_syscall_64+0xc6/0x1e0 [ 3879.207487][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3879.207487][ T253] [ 3889.266251][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3889.266727][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3889.266727][ T253] dst_init+0x84/0x4a0 [ 3889.266727][ T253] dst_alloc+0x97/0x150 [ 3889.266727][ T253] ip6_dst_alloc+0x23/0x90 [ 3889.266727][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3889.266727][ T253] ip6_pol_route+0x56f/0x840 [ 3889.266727][ T253] fib6_rule_lookup+0x334/0x630 [ 3889.266727][ T253] ip6_route_output_flags+0x259/0x480 [ 3889.266727][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3889.266727][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3889.266727][ T253] netlink_rcv_skb+0x130/0x360 [ 3889.266727][ T253] netlink_unicast+0x449/0x710 [ 3889.266727][ T253] netlink_sendmsg+0x723/0xbe0 [ 3889.266727][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3889.266727][ T253] ___sys_sendmsg+0xee/0x170 [ 3889.266727][ T253] __sys_sendmsg+0xcd/0x170 [ 3889.266727][ T253] do_syscall_64+0xc6/0x1e0 [ 3889.266727][ T253] [ 3889.268917][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3889.268917][ T253] netdev_get_by_index+0x5e/0x80 [ 3889.268917][ T253] fib6_nh_init+0x3d8/0x1580 [ 3889.268917][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3889.268917][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3889.268917][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3889.268917][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3889.268917][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3889.268917][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3889.268917][ T253] addrconf_dad_begin+0x310/0x670 [ 3889.268917][ T253] addrconf_dad_work+0x10b/0xab0 [ 3889.268917][ T253] process_one_work+0x84d/0x18a0 [ 3889.268917][ T253] worker_thread+0x587/0xd30 [ 3889.268917][ T253] kthread+0x28a/0x350 [ 3889.268917][ T253] ret_from_fork+0x31/0x70 [ 3889.268917][ T253] ret_from_fork_asm+0x1a/0x30 [ 3889.268917][ T253] [ 3889.271068][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3889.271068][ T253] netdev_get_by_index+0x5e/0x80 [ 3889.271068][ T253] fib6_nh_init+0x3d8/0x1580 [ 3889.271068][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3889.271068][ T253] ip6_route_add+0x1c/0x140 [ 3889.271068][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3889.271068][ T253] inet6_addr_add+0x4f8/0xa40 [ 3889.271068][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3889.271068][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3889.271068][ T253] netlink_rcv_skb+0x130/0x360 [ 3889.271068][ T253] netlink_unicast+0x449/0x710 [ 3889.271068][ T253] netlink_sendmsg+0x723/0xbe0 [ 3889.271068][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3889.271068][ T253] ___sys_sendmsg+0xee/0x170 [ 3889.271068][ T253] __sys_sendmsg+0xcd/0x170 [ 3889.271068][ T253] do_syscall_64+0xc6/0x1e0 [ 3889.271068][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3889.271068][ T253] [ 3889.273319][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3889.273319][ T253] netdev_get_by_index+0x5e/0x80 [ 3889.273319][ T253] fib6_nh_init+0x3d8/0x1580 [ 3889.273319][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3889.273319][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3889.273319][ T253] ipv6_add_addr+0x411/0x2000 [ 3889.273319][ T253] inet6_addr_add+0x30e/0xa40 [ 3889.273319][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3889.273319][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3889.273319][ T253] netlink_rcv_skb+0x130/0x360 [ 3889.273319][ T253] netlink_unicast+0x449/0x710 [ 3889.273319][ T253] netlink_sendmsg+0x723/0xbe0 [ 3889.273319][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3889.273319][ T253] ___sys_sendmsg+0xee/0x170 [ 3889.273319][ T253] __sys_sendmsg+0xcd/0x170 [ 3889.273319][ T253] do_syscall_64+0xc6/0x1e0 [ 3889.273319][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3889.273319][ T253] [ 3889.275558][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3889.275558][ T253] netdev_get_by_index+0x5e/0x80 [ 3889.275558][ T253] fib6_nh_init+0x3d8/0x1580 [ 3889.275558][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3889.275558][ T253] ip6_route_add+0x1c/0x140 [ 3889.275558][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3889.275558][ T253] addrconf_add_dev+0xe2/0x170 [ 3889.275558][ T253] inet6_addr_add+0x12f/0xa40 [ 3889.275558][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3889.275558][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3889.275558][ T253] netlink_rcv_skb+0x130/0x360 [ 3889.275558][ T253] netlink_unicast+0x449/0x710 [ 3889.275558][ T253] netlink_sendmsg+0x723/0xbe0 [ 3889.275558][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3889.275558][ T253] ___sys_sendmsg+0xee/0x170 [ 3889.275558][ T253] __sys_sendmsg+0xcd/0x170 [ 3889.275558][ T253] do_syscall_64+0xc6/0x1e0 [ 3889.275558][ T253] [ 3889.277824][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3889.277824][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3889.277824][ T253] ipv6_find_idev+0x102/0x170 [ 3889.277824][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3889.277824][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3889.277824][ T253] netlink_rcv_skb+0x130/0x360 [ 3889.277824][ T253] netlink_unicast+0x449/0x710 [ 3889.277824][ T253] netlink_sendmsg+0x723/0xbe0 [ 3889.277824][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3889.277824][ T253] ___sys_sendmsg+0xee/0x170 [ 3889.277824][ T253] __sys_sendmsg+0xcd/0x170 [ 3889.277824][ T253] do_syscall_64+0xc6/0x1e0 [ 3889.277824][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3889.277824][ T253] [ 3889.279621][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3889.279621][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3889.279621][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3889.279621][ T253] ipv6_find_idev+0x102/0x170 [ 3889.279621][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3889.279621][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3889.279621][ T253] netlink_rcv_skb+0x130/0x360 [ 3889.279621][ T253] netlink_unicast+0x449/0x710 [ 3889.279621][ T253] netlink_sendmsg+0x723/0xbe0 [ 3889.279621][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3889.279621][ T253] ___sys_sendmsg+0xee/0x170 [ 3889.279621][ T253] __sys_sendmsg+0xcd/0x170 [ 3889.279621][ T253] do_syscall_64+0xc6/0x1e0 [ 3889.279621][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3889.279621][ T253] [ 3899.538323][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3899.538765][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3899.538765][ T253] dst_init+0x84/0x4a0 [ 3899.538765][ T253] dst_alloc+0x97/0x150 [ 3899.538765][ T253] ip6_dst_alloc+0x23/0x90 [ 3899.538765][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3899.538765][ T253] ip6_pol_route+0x56f/0x840 [ 3899.538765][ T253] fib6_rule_lookup+0x334/0x630 [ 3899.538765][ T253] ip6_route_output_flags+0x259/0x480 [ 3899.538765][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3899.538765][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3899.538765][ T253] netlink_rcv_skb+0x130/0x360 [ 3899.538765][ T253] netlink_unicast+0x449/0x710 [ 3899.538765][ T253] netlink_sendmsg+0x723/0xbe0 [ 3899.538765][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3899.538765][ T253] ___sys_sendmsg+0xee/0x170 [ 3899.538765][ T253] __sys_sendmsg+0xcd/0x170 [ 3899.538765][ T253] do_syscall_64+0xc6/0x1e0 [ 3899.538765][ T253] [ 3899.541068][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3899.541068][ T253] netdev_get_by_index+0x5e/0x80 [ 3899.541068][ T253] fib6_nh_init+0x3d8/0x1580 [ 3899.541068][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3899.541068][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3899.541068][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3899.541068][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3899.541068][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3899.541068][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3899.541068][ T253] addrconf_dad_begin+0x310/0x670 [ 3899.541068][ T253] addrconf_dad_work+0x10b/0xab0 [ 3899.541068][ T253] process_one_work+0x84d/0x18a0 [ 3899.541068][ T253] worker_thread+0x587/0xd30 [ 3899.541068][ T253] kthread+0x28a/0x350 [ 3899.541068][ T253] ret_from_fork+0x31/0x70 [ 3899.541068][ T253] ret_from_fork_asm+0x1a/0x30 [ 3899.541068][ T253] [ 3899.543334][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3899.543334][ T253] netdev_get_by_index+0x5e/0x80 [ 3899.543334][ T253] fib6_nh_init+0x3d8/0x1580 [ 3899.543334][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3899.543334][ T253] ip6_route_add+0x1c/0x140 [ 3899.543334][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3899.543334][ T253] inet6_addr_add+0x4f8/0xa40 [ 3899.543334][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3899.543334][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3899.543334][ T253] netlink_rcv_skb+0x130/0x360 [ 3899.543334][ T253] netlink_unicast+0x449/0x710 [ 3899.543334][ T253] netlink_sendmsg+0x723/0xbe0 [ 3899.543334][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3899.543334][ T253] ___sys_sendmsg+0xee/0x170 [ 3899.543334][ T253] __sys_sendmsg+0xcd/0x170 [ 3899.543334][ T253] do_syscall_64+0xc6/0x1e0 [ 3899.543334][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3899.543334][ T253] [ 3899.545698][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3899.545698][ T253] netdev_get_by_index+0x5e/0x80 [ 3899.545698][ T253] fib6_nh_init+0x3d8/0x1580 [ 3899.545698][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3899.545698][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3899.545698][ T253] ipv6_add_addr+0x411/0x2000 [ 3899.545698][ T253] inet6_addr_add+0x30e/0xa40 [ 3899.545698][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3899.545698][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3899.545698][ T253] netlink_rcv_skb+0x130/0x360 [ 3899.545698][ T253] netlink_unicast+0x449/0x710 [ 3899.545698][ T253] netlink_sendmsg+0x723/0xbe0 [ 3899.545698][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3899.545698][ T253] ___sys_sendmsg+0xee/0x170 [ 3899.545698][ T253] __sys_sendmsg+0xcd/0x170 [ 3899.545698][ T253] do_syscall_64+0xc6/0x1e0 [ 3899.545698][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3899.545698][ T253] [ 3899.548051][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3899.548051][ T253] netdev_get_by_index+0x5e/0x80 [ 3899.548051][ T253] fib6_nh_init+0x3d8/0x1580 [ 3899.548051][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3899.548051][ T253] ip6_route_add+0x1c/0x140 [ 3899.548051][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3899.548051][ T253] addrconf_add_dev+0xe2/0x170 [ 3899.548051][ T253] inet6_addr_add+0x12f/0xa40 [ 3899.548051][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3899.548051][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3899.548051][ T253] netlink_rcv_skb+0x130/0x360 [ 3899.548051][ T253] netlink_unicast+0x449/0x710 [ 3899.548051][ T253] netlink_sendmsg+0x723/0xbe0 [ 3899.548051][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3899.548051][ T253] ___sys_sendmsg+0xee/0x170 [ 3899.548051][ T253] __sys_sendmsg+0xcd/0x170 [ 3899.548051][ T253] do_syscall_64+0xc6/0x1e0 [ 3899.548051][ T253] [ 3899.550370][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3899.550370][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3899.550370][ T253] ipv6_find_idev+0x102/0x170 [ 3899.550370][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3899.550370][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3899.550370][ T253] netlink_rcv_skb+0x130/0x360 [ 3899.550370][ T253] netlink_unicast+0x449/0x710 [ 3899.550370][ T253] netlink_sendmsg+0x723/0xbe0 [ 3899.550370][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3899.550370][ T253] ___sys_sendmsg+0xee/0x170 [ 3899.550370][ T253] __sys_sendmsg+0xcd/0x170 [ 3899.550370][ T253] do_syscall_64+0xc6/0x1e0 [ 3899.550370][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3899.550370][ T253] [ 3899.552198][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3899.552198][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3899.552198][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3899.552198][ T253] ipv6_find_idev+0x102/0x170 [ 3899.552198][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3899.552198][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3899.552198][ T253] netlink_rcv_skb+0x130/0x360 [ 3899.552198][ T253] netlink_unicast+0x449/0x710 [ 3899.552198][ T253] netlink_sendmsg+0x723/0xbe0 [ 3899.552198][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3899.552198][ T253] ___sys_sendmsg+0xee/0x170 [ 3899.552198][ T253] __sys_sendmsg+0xcd/0x170 [ 3899.552198][ T253] do_syscall_64+0xc6/0x1e0 [ 3899.552198][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3899.552198][ T253] [ 3909.794237][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3909.794718][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3909.794718][ T253] dst_init+0x84/0x4a0 [ 3909.794718][ T253] dst_alloc+0x97/0x150 [ 3909.794718][ T253] ip6_dst_alloc+0x23/0x90 [ 3909.794718][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3909.794718][ T253] ip6_pol_route+0x56f/0x840 [ 3909.794718][ T253] fib6_rule_lookup+0x334/0x630 [ 3909.794718][ T253] ip6_route_output_flags+0x259/0x480 [ 3909.794718][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3909.794718][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3909.794718][ T253] netlink_rcv_skb+0x130/0x360 [ 3909.794718][ T253] netlink_unicast+0x449/0x710 [ 3909.794718][ T253] netlink_sendmsg+0x723/0xbe0 [ 3909.794718][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3909.794718][ T253] ___sys_sendmsg+0xee/0x170 [ 3909.794718][ T253] __sys_sendmsg+0xcd/0x170 [ 3909.794718][ T253] do_syscall_64+0xc6/0x1e0 [ 3909.794718][ T253] [ 3909.796941][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3909.796941][ T253] netdev_get_by_index+0x5e/0x80 [ 3909.796941][ T253] fib6_nh_init+0x3d8/0x1580 [ 3909.796941][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3909.796941][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3909.796941][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3909.796941][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3909.796941][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3909.796941][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3909.796941][ T253] addrconf_dad_begin+0x310/0x670 [ 3909.796941][ T253] addrconf_dad_work+0x10b/0xab0 [ 3909.796941][ T253] process_one_work+0x84d/0x18a0 [ 3909.796941][ T253] worker_thread+0x587/0xd30 [ 3909.796941][ T253] kthread+0x28a/0x350 [ 3909.796941][ T253] ret_from_fork+0x31/0x70 [ 3909.796941][ T253] ret_from_fork_asm+0x1a/0x30 [ 3909.796941][ T253] [ 3909.799093][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3909.799093][ T253] netdev_get_by_index+0x5e/0x80 [ 3909.799093][ T253] fib6_nh_init+0x3d8/0x1580 [ 3909.799093][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3909.799093][ T253] ip6_route_add+0x1c/0x140 [ 3909.799093][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3909.799093][ T253] inet6_addr_add+0x4f8/0xa40 [ 3909.799093][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3909.799093][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3909.799093][ T253] netlink_rcv_skb+0x130/0x360 [ 3909.799093][ T253] netlink_unicast+0x449/0x710 [ 3909.799093][ T253] netlink_sendmsg+0x723/0xbe0 [ 3909.799093][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3909.799093][ T253] ___sys_sendmsg+0xee/0x170 [ 3909.799093][ T253] __sys_sendmsg+0xcd/0x170 [ 3909.799093][ T253] do_syscall_64+0xc6/0x1e0 [ 3909.799093][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3909.799093][ T253] [ 3909.801346][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3909.801346][ T253] netdev_get_by_index+0x5e/0x80 [ 3909.801346][ T253] fib6_nh_init+0x3d8/0x1580 [ 3909.801346][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3909.801346][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3909.801346][ T253] ipv6_add_addr+0x411/0x2000 [ 3909.801346][ T253] inet6_addr_add+0x30e/0xa40 [ 3909.801346][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3909.801346][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3909.801346][ T253] netlink_rcv_skb+0x130/0x360 [ 3909.801346][ T253] netlink_unicast+0x449/0x710 [ 3909.801346][ T253] netlink_sendmsg+0x723/0xbe0 [ 3909.801346][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3909.801346][ T253] ___sys_sendmsg+0xee/0x170 [ 3909.801346][ T253] __sys_sendmsg+0xcd/0x170 [ 3909.801346][ T253] do_syscall_64+0xc6/0x1e0 [ 3909.801346][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3909.801346][ T253] [ 3909.803592][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3909.803592][ T253] netdev_get_by_index+0x5e/0x80 [ 3909.803592][ T253] fib6_nh_init+0x3d8/0x1580 [ 3909.803592][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3909.803592][ T253] ip6_route_add+0x1c/0x140 [ 3909.803592][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3909.803592][ T253] addrconf_add_dev+0xe2/0x170 [ 3909.803592][ T253] inet6_addr_add+0x12f/0xa40 [ 3909.803592][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3909.803592][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3909.803592][ T253] netlink_rcv_skb+0x130/0x360 [ 3909.803592][ T253] netlink_unicast+0x449/0x710 [ 3909.803592][ T253] netlink_sendmsg+0x723/0xbe0 [ 3909.803592][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3909.803592][ T253] ___sys_sendmsg+0xee/0x170 [ 3909.803592][ T253] __sys_sendmsg+0xcd/0x170 [ 3909.803592][ T253] do_syscall_64+0xc6/0x1e0 [ 3909.803592][ T253] [ 3909.805798][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3909.805798][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3909.805798][ T253] ipv6_find_idev+0x102/0x170 [ 3909.805798][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3909.805798][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3909.805798][ T253] netlink_rcv_skb+0x130/0x360 [ 3909.805798][ T253] netlink_unicast+0x449/0x710 [ 3909.805798][ T253] netlink_sendmsg+0x723/0xbe0 [ 3909.805798][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3909.805798][ T253] ___sys_sendmsg+0xee/0x170 [ 3909.805798][ T253] __sys_sendmsg+0xcd/0x170 [ 3909.805798][ T253] do_syscall_64+0xc6/0x1e0 [ 3909.805798][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3909.805798][ T253] [ 3909.807533][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3909.807533][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3909.807533][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3909.807533][ T253] ipv6_find_idev+0x102/0x170 [ 3909.807533][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3909.807533][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3909.807533][ T253] netlink_rcv_skb+0x130/0x360 [ 3909.807533][ T253] netlink_unicast+0x449/0x710 [ 3909.807533][ T253] netlink_sendmsg+0x723/0xbe0 [ 3909.807533][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3909.807533][ T253] ___sys_sendmsg+0xee/0x170 [ 3909.807533][ T253] __sys_sendmsg+0xcd/0x170 [ 3909.807533][ T253] do_syscall_64+0xc6/0x1e0 [ 3909.807533][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3909.807533][ T253] [ 3920.050240][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3920.050699][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3920.050699][ T253] dst_init+0x84/0x4a0 [ 3920.050699][ T253] dst_alloc+0x97/0x150 [ 3920.050699][ T253] ip6_dst_alloc+0x23/0x90 [ 3920.050699][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3920.050699][ T253] ip6_pol_route+0x56f/0x840 [ 3920.050699][ T253] fib6_rule_lookup+0x334/0x630 [ 3920.050699][ T253] ip6_route_output_flags+0x259/0x480 [ 3920.050699][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3920.050699][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3920.050699][ T253] netlink_rcv_skb+0x130/0x360 [ 3920.050699][ T253] netlink_unicast+0x449/0x710 [ 3920.050699][ T253] netlink_sendmsg+0x723/0xbe0 [ 3920.050699][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3920.050699][ T253] ___sys_sendmsg+0xee/0x170 [ 3920.050699][ T253] __sys_sendmsg+0xcd/0x170 [ 3920.050699][ T253] do_syscall_64+0xc6/0x1e0 [ 3920.050699][ T253] [ 3920.053658][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3920.053658][ T253] netdev_get_by_index+0x5e/0x80 [ 3920.053658][ T253] fib6_nh_init+0x3d8/0x1580 [ 3920.053658][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3920.053658][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3920.053658][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3920.053658][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3920.053658][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3920.053658][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3920.053658][ T253] addrconf_dad_begin+0x310/0x670 [ 3920.053658][ T253] addrconf_dad_work+0x10b/0xab0 [ 3920.053658][ T253] process_one_work+0x84d/0x18a0 [ 3920.053658][ T253] worker_thread+0x587/0xd30 [ 3920.053658][ T253] kthread+0x28a/0x350 [ 3920.053658][ T253] ret_from_fork+0x31/0x70 [ 3920.053658][ T253] ret_from_fork_asm+0x1a/0x30 [ 3920.053658][ T253] [ 3920.056027][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3920.056027][ T253] netdev_get_by_index+0x5e/0x80 [ 3920.056027][ T253] fib6_nh_init+0x3d8/0x1580 [ 3920.056027][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3920.056027][ T253] ip6_route_add+0x1c/0x140 [ 3920.056027][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3920.056027][ T253] inet6_addr_add+0x4f8/0xa40 [ 3920.056027][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3920.056027][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3920.056027][ T253] netlink_rcv_skb+0x130/0x360 [ 3920.056027][ T253] netlink_unicast+0x449/0x710 [ 3920.056027][ T253] netlink_sendmsg+0x723/0xbe0 [ 3920.056027][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3920.056027][ T253] ___sys_sendmsg+0xee/0x170 [ 3920.056027][ T253] __sys_sendmsg+0xcd/0x170 [ 3920.056027][ T253] do_syscall_64+0xc6/0x1e0 [ 3920.056027][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3920.056027][ T253] [ 3920.058492][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3920.058492][ T253] netdev_get_by_index+0x5e/0x80 [ 3920.058492][ T253] fib6_nh_init+0x3d8/0x1580 [ 3920.058492][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3920.058492][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3920.058492][ T253] ipv6_add_addr+0x411/0x2000 [ 3920.058492][ T253] inet6_addr_add+0x30e/0xa40 [ 3920.058492][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3920.058492][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3920.058492][ T253] netlink_rcv_skb+0x130/0x360 [ 3920.058492][ T253] netlink_unicast+0x449/0x710 [ 3920.058492][ T253] netlink_sendmsg+0x723/0xbe0 [ 3920.058492][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3920.058492][ T253] ___sys_sendmsg+0xee/0x170 [ 3920.058492][ T253] __sys_sendmsg+0xcd/0x170 [ 3920.058492][ T253] do_syscall_64+0xc6/0x1e0 [ 3920.058492][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3920.058492][ T253] [ 3920.060963][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3920.060963][ T253] netdev_get_by_index+0x5e/0x80 [ 3920.060963][ T253] fib6_nh_init+0x3d8/0x1580 [ 3920.060963][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3920.060963][ T253] ip6_route_add+0x1c/0x140 [ 3920.060963][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3920.060963][ T253] addrconf_add_dev+0xe2/0x170 [ 3920.060963][ T253] inet6_addr_add+0x12f/0xa40 [ 3920.060963][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3920.060963][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3920.060963][ T253] netlink_rcv_skb+0x130/0x360 [ 3920.060963][ T253] netlink_unicast+0x449/0x710 [ 3920.060963][ T253] netlink_sendmsg+0x723/0xbe0 [ 3920.060963][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3920.060963][ T253] ___sys_sendmsg+0xee/0x170 [ 3920.060963][ T253] __sys_sendmsg+0xcd/0x170 [ 3920.060963][ T253] do_syscall_64+0xc6/0x1e0 [ 3920.060963][ T253] [ 3920.063400][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3920.063400][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3920.063400][ T253] ipv6_find_idev+0x102/0x170 [ 3920.063400][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3920.063400][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3920.063400][ T253] netlink_rcv_skb+0x130/0x360 [ 3920.063400][ T253] netlink_unicast+0x449/0x710 [ 3920.063400][ T253] netlink_sendmsg+0x723/0xbe0 [ 3920.063400][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3920.063400][ T253] ___sys_sendmsg+0xee/0x170 [ 3920.063400][ T253] __sys_sendmsg+0xcd/0x170 [ 3920.063400][ T253] do_syscall_64+0xc6/0x1e0 [ 3920.063400][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3920.063400][ T253] [ 3920.065705][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3920.065705][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3920.065705][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3920.065705][ T253] ipv6_find_idev+0x102/0x170 [ 3920.065705][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3920.065705][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3920.065705][ T253] netlink_rcv_skb+0x130/0x360 [ 3920.065705][ T253] netlink_unicast+0x449/0x710 [ 3920.065705][ T253] netlink_sendmsg+0x723/0xbe0 [ 3920.065705][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3920.065705][ T253] ___sys_sendmsg+0xee/0x170 [ 3920.065705][ T253] __sys_sendmsg+0xcd/0x170 [ 3920.065705][ T253] do_syscall_64+0xc6/0x1e0 [ 3920.065705][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3920.065705][ T253] [ 3930.098256][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3930.098762][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3930.098762][ T253] dst_init+0x84/0x4a0 [ 3930.098762][ T253] dst_alloc+0x97/0x150 [ 3930.098762][ T253] ip6_dst_alloc+0x23/0x90 [ 3930.098762][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3930.098762][ T253] ip6_pol_route+0x56f/0x840 [ 3930.098762][ T253] fib6_rule_lookup+0x334/0x630 [ 3930.098762][ T253] ip6_route_output_flags+0x259/0x480 [ 3930.098762][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3930.098762][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3930.098762][ T253] netlink_rcv_skb+0x130/0x360 [ 3930.098762][ T253] netlink_unicast+0x449/0x710 [ 3930.098762][ T253] netlink_sendmsg+0x723/0xbe0 [ 3930.098762][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3930.098762][ T253] ___sys_sendmsg+0xee/0x170 [ 3930.098762][ T253] __sys_sendmsg+0xcd/0x170 [ 3930.098762][ T253] do_syscall_64+0xc6/0x1e0 [ 3930.098762][ T253] [ 3930.101045][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3930.101045][ T253] netdev_get_by_index+0x5e/0x80 [ 3930.101045][ T253] fib6_nh_init+0x3d8/0x1580 [ 3930.101045][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3930.101045][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3930.101045][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3930.101045][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3930.101045][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3930.101045][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3930.101045][ T253] addrconf_dad_begin+0x310/0x670 [ 3930.101045][ T253] addrconf_dad_work+0x10b/0xab0 [ 3930.101045][ T253] process_one_work+0x84d/0x18a0 [ 3930.101045][ T253] worker_thread+0x587/0xd30 [ 3930.101045][ T253] kthread+0x28a/0x350 [ 3930.101045][ T253] ret_from_fork+0x31/0x70 [ 3930.101045][ T253] ret_from_fork_asm+0x1a/0x30 [ 3930.101045][ T253] [ 3930.103286][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3930.103286][ T253] netdev_get_by_index+0x5e/0x80 [ 3930.103286][ T253] fib6_nh_init+0x3d8/0x1580 [ 3930.103286][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3930.103286][ T253] ip6_route_add+0x1c/0x140 [ 3930.103286][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3930.103286][ T253] inet6_addr_add+0x4f8/0xa40 [ 3930.103286][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3930.103286][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3930.103286][ T253] netlink_rcv_skb+0x130/0x360 [ 3930.103286][ T253] netlink_unicast+0x449/0x710 [ 3930.103286][ T253] netlink_sendmsg+0x723/0xbe0 [ 3930.103286][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3930.103286][ T253] ___sys_sendmsg+0xee/0x170 [ 3930.103286][ T253] __sys_sendmsg+0xcd/0x170 [ 3930.103286][ T253] do_syscall_64+0xc6/0x1e0 [ 3930.103286][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3930.103286][ T253] [ 3930.105591][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3930.105591][ T253] netdev_get_by_index+0x5e/0x80 [ 3930.105591][ T253] fib6_nh_init+0x3d8/0x1580 [ 3930.105591][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3930.105591][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3930.105591][ T253] ipv6_add_addr+0x411/0x2000 [ 3930.105591][ T253] inet6_addr_add+0x30e/0xa40 [ 3930.105591][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3930.105591][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3930.105591][ T253] netlink_rcv_skb+0x130/0x360 [ 3930.105591][ T253] netlink_unicast+0x449/0x710 [ 3930.105591][ T253] netlink_sendmsg+0x723/0xbe0 [ 3930.105591][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3930.105591][ T253] ___sys_sendmsg+0xee/0x170 [ 3930.105591][ T253] __sys_sendmsg+0xcd/0x170 [ 3930.105591][ T253] do_syscall_64+0xc6/0x1e0 [ 3930.105591][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3930.105591][ T253] [ 3930.107864][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3930.107864][ T253] netdev_get_by_index+0x5e/0x80 [ 3930.107864][ T253] fib6_nh_init+0x3d8/0x1580 [ 3930.107864][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3930.107864][ T253] ip6_route_add+0x1c/0x140 [ 3930.107864][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3930.107864][ T253] addrconf_add_dev+0xe2/0x170 [ 3930.107864][ T253] inet6_addr_add+0x12f/0xa40 [ 3930.107864][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3930.107864][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3930.107864][ T253] netlink_rcv_skb+0x130/0x360 [ 3930.107864][ T253] netlink_unicast+0x449/0x710 [ 3930.107864][ T253] netlink_sendmsg+0x723/0xbe0 [ 3930.107864][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3930.107864][ T253] ___sys_sendmsg+0xee/0x170 [ 3930.107864][ T253] __sys_sendmsg+0xcd/0x170 [ 3930.107864][ T253] do_syscall_64+0xc6/0x1e0 [ 3930.107864][ T253] [ 3930.110153][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3930.110153][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3930.110153][ T253] ipv6_find_idev+0x102/0x170 [ 3930.110153][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3930.110153][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3930.110153][ T253] netlink_rcv_skb+0x130/0x360 [ 3930.110153][ T253] netlink_unicast+0x449/0x710 [ 3930.110153][ T253] netlink_sendmsg+0x723/0xbe0 [ 3930.110153][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3930.110153][ T253] ___sys_sendmsg+0xee/0x170 [ 3930.110153][ T253] __sys_sendmsg+0xcd/0x170 [ 3930.110153][ T253] do_syscall_64+0xc6/0x1e0 [ 3930.110153][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3930.110153][ T253] [ 3930.111994][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3930.111994][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3930.111994][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3930.111994][ T253] ipv6_find_idev+0x102/0x170 [ 3930.111994][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3930.111994][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3930.111994][ T253] netlink_rcv_skb+0x130/0x360 [ 3930.111994][ T253] netlink_unicast+0x449/0x710 [ 3930.111994][ T253] netlink_sendmsg+0x723/0xbe0 [ 3930.111994][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3930.111994][ T253] ___sys_sendmsg+0xee/0x170 [ 3930.111994][ T253] __sys_sendmsg+0xcd/0x170 [ 3930.111994][ T253] do_syscall_64+0xc6/0x1e0 [ 3930.111994][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3930.111994][ T253] [ 3940.122318][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3940.122802][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3940.122802][ T253] dst_init+0x84/0x4a0 [ 3940.122802][ T253] dst_alloc+0x97/0x150 [ 3940.122802][ T253] ip6_dst_alloc+0x23/0x90 [ 3940.122802][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3940.122802][ T253] ip6_pol_route+0x56f/0x840 [ 3940.122802][ T253] fib6_rule_lookup+0x334/0x630 [ 3940.122802][ T253] ip6_route_output_flags+0x259/0x480 [ 3940.122802][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3940.122802][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3940.122802][ T253] netlink_rcv_skb+0x130/0x360 [ 3940.122802][ T253] netlink_unicast+0x449/0x710 [ 3940.122802][ T253] netlink_sendmsg+0x723/0xbe0 [ 3940.122802][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3940.122802][ T253] ___sys_sendmsg+0xee/0x170 [ 3940.122802][ T253] __sys_sendmsg+0xcd/0x170 [ 3940.122802][ T253] do_syscall_64+0xc6/0x1e0 [ 3940.122802][ T253] [ 3940.125001][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3940.125001][ T253] netdev_get_by_index+0x5e/0x80 [ 3940.125001][ T253] fib6_nh_init+0x3d8/0x1580 [ 3940.125001][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3940.125001][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3940.125001][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3940.125001][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3940.125001][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3940.125001][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3940.125001][ T253] addrconf_dad_begin+0x310/0x670 [ 3940.125001][ T253] addrconf_dad_work+0x10b/0xab0 [ 3940.125001][ T253] process_one_work+0x84d/0x18a0 [ 3940.125001][ T253] worker_thread+0x587/0xd30 [ 3940.125001][ T253] kthread+0x28a/0x350 [ 3940.125001][ T253] ret_from_fork+0x31/0x70 [ 3940.125001][ T253] ret_from_fork_asm+0x1a/0x30 [ 3940.125001][ T253] [ 3940.127143][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3940.127143][ T253] netdev_get_by_index+0x5e/0x80 [ 3940.127143][ T253] fib6_nh_init+0x3d8/0x1580 [ 3940.127143][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3940.127143][ T253] ip6_route_add+0x1c/0x140 [ 3940.127143][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3940.127143][ T253] inet6_addr_add+0x4f8/0xa40 [ 3940.127143][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3940.127143][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3940.127143][ T253] netlink_rcv_skb+0x130/0x360 [ 3940.127143][ T253] netlink_unicast+0x449/0x710 [ 3940.127143][ T253] netlink_sendmsg+0x723/0xbe0 [ 3940.127143][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3940.127143][ T253] ___sys_sendmsg+0xee/0x170 [ 3940.127143][ T253] __sys_sendmsg+0xcd/0x170 [ 3940.127143][ T253] do_syscall_64+0xc6/0x1e0 [ 3940.127143][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3940.127143][ T253] [ 3940.129381][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3940.129381][ T253] netdev_get_by_index+0x5e/0x80 [ 3940.129381][ T253] fib6_nh_init+0x3d8/0x1580 [ 3940.129381][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3940.129381][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3940.129381][ T253] ipv6_add_addr+0x411/0x2000 [ 3940.129381][ T253] inet6_addr_add+0x30e/0xa40 [ 3940.129381][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3940.129381][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3940.129381][ T253] netlink_rcv_skb+0x130/0x360 [ 3940.129381][ T253] netlink_unicast+0x449/0x710 [ 3940.129381][ T253] netlink_sendmsg+0x723/0xbe0 [ 3940.129381][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3940.129381][ T253] ___sys_sendmsg+0xee/0x170 [ 3940.129381][ T253] __sys_sendmsg+0xcd/0x170 [ 3940.129381][ T253] do_syscall_64+0xc6/0x1e0 [ 3940.129381][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3940.129381][ T253] [ 3940.131627][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3940.131627][ T253] netdev_get_by_index+0x5e/0x80 [ 3940.131627][ T253] fib6_nh_init+0x3d8/0x1580 [ 3940.131627][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3940.131627][ T253] ip6_route_add+0x1c/0x140 [ 3940.131627][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3940.131627][ T253] addrconf_add_dev+0xe2/0x170 [ 3940.131627][ T253] inet6_addr_add+0x12f/0xa40 [ 3940.131627][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3940.131627][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3940.131627][ T253] netlink_rcv_skb+0x130/0x360 [ 3940.131627][ T253] netlink_unicast+0x449/0x710 [ 3940.131627][ T253] netlink_sendmsg+0x723/0xbe0 [ 3940.131627][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3940.131627][ T253] ___sys_sendmsg+0xee/0x170 [ 3940.131627][ T253] __sys_sendmsg+0xcd/0x170 [ 3940.131627][ T253] do_syscall_64+0xc6/0x1e0 [ 3940.131627][ T253] [ 3940.133855][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3940.133855][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3940.133855][ T253] ipv6_find_idev+0x102/0x170 [ 3940.133855][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3940.133855][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3940.133855][ T253] netlink_rcv_skb+0x130/0x360 [ 3940.133855][ T253] netlink_unicast+0x449/0x710 [ 3940.133855][ T253] netlink_sendmsg+0x723/0xbe0 [ 3940.133855][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3940.133855][ T253] ___sys_sendmsg+0xee/0x170 [ 3940.133855][ T253] __sys_sendmsg+0xcd/0x170 [ 3940.133855][ T253] do_syscall_64+0xc6/0x1e0 [ 3940.133855][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3940.133855][ T253] [ 3940.135588][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3940.135588][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3940.135588][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3940.135588][ T253] ipv6_find_idev+0x102/0x170 [ 3940.135588][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3940.135588][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3940.135588][ T253] netlink_rcv_skb+0x130/0x360 [ 3940.135588][ T253] netlink_unicast+0x449/0x710 [ 3940.135588][ T253] netlink_sendmsg+0x723/0xbe0 [ 3940.135588][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3940.135588][ T253] ___sys_sendmsg+0xee/0x170 [ 3940.135588][ T253] __sys_sendmsg+0xcd/0x170 [ 3940.135588][ T253] do_syscall_64+0xc6/0x1e0 [ 3940.135588][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3940.135588][ T253] [ 3950.386379][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3950.386857][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3950.386857][ T253] dst_init+0x84/0x4a0 [ 3950.386857][ T253] dst_alloc+0x97/0x150 [ 3950.386857][ T253] ip6_dst_alloc+0x23/0x90 [ 3950.386857][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3950.386857][ T253] ip6_pol_route+0x56f/0x840 [ 3950.386857][ T253] fib6_rule_lookup+0x334/0x630 [ 3950.386857][ T253] ip6_route_output_flags+0x259/0x480 [ 3950.386857][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3950.386857][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3950.386857][ T253] netlink_rcv_skb+0x130/0x360 [ 3950.386857][ T253] netlink_unicast+0x449/0x710 [ 3950.386857][ T253] netlink_sendmsg+0x723/0xbe0 [ 3950.386857][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3950.386857][ T253] ___sys_sendmsg+0xee/0x170 [ 3950.386857][ T253] __sys_sendmsg+0xcd/0x170 [ 3950.386857][ T253] do_syscall_64+0xc6/0x1e0 [ 3950.386857][ T253] [ 3950.389053][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3950.389053][ T253] netdev_get_by_index+0x5e/0x80 [ 3950.389053][ T253] fib6_nh_init+0x3d8/0x1580 [ 3950.389053][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3950.389053][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3950.389053][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3950.389053][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3950.389053][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3950.389053][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3950.389053][ T253] addrconf_dad_begin+0x310/0x670 [ 3950.389053][ T253] addrconf_dad_work+0x10b/0xab0 [ 3950.389053][ T253] process_one_work+0x84d/0x18a0 [ 3950.389053][ T253] worker_thread+0x587/0xd30 [ 3950.389053][ T253] kthread+0x28a/0x350 [ 3950.389053][ T253] ret_from_fork+0x31/0x70 [ 3950.389053][ T253] ret_from_fork_asm+0x1a/0x30 [ 3950.389053][ T253] [ 3950.391206][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3950.391206][ T253] netdev_get_by_index+0x5e/0x80 [ 3950.391206][ T253] fib6_nh_init+0x3d8/0x1580 [ 3950.391206][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3950.391206][ T253] ip6_route_add+0x1c/0x140 [ 3950.391206][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3950.391206][ T253] inet6_addr_add+0x4f8/0xa40 [ 3950.391206][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3950.391206][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3950.391206][ T253] netlink_rcv_skb+0x130/0x360 [ 3950.391206][ T253] netlink_unicast+0x449/0x710 [ 3950.391206][ T253] netlink_sendmsg+0x723/0xbe0 [ 3950.391206][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3950.391206][ T253] ___sys_sendmsg+0xee/0x170 [ 3950.391206][ T253] __sys_sendmsg+0xcd/0x170 [ 3950.391206][ T253] do_syscall_64+0xc6/0x1e0 [ 3950.391206][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3950.391206][ T253] [ 3950.393445][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3950.393445][ T253] netdev_get_by_index+0x5e/0x80 [ 3950.393445][ T253] fib6_nh_init+0x3d8/0x1580 [ 3950.393445][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3950.393445][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3950.393445][ T253] ipv6_add_addr+0x411/0x2000 [ 3950.393445][ T253] inet6_addr_add+0x30e/0xa40 [ 3950.393445][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3950.393445][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3950.393445][ T253] netlink_rcv_skb+0x130/0x360 [ 3950.393445][ T253] netlink_unicast+0x449/0x710 [ 3950.393445][ T253] netlink_sendmsg+0x723/0xbe0 [ 3950.393445][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3950.393445][ T253] ___sys_sendmsg+0xee/0x170 [ 3950.393445][ T253] __sys_sendmsg+0xcd/0x170 [ 3950.393445][ T253] do_syscall_64+0xc6/0x1e0 [ 3950.393445][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3950.393445][ T253] [ 3950.395693][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3950.395693][ T253] netdev_get_by_index+0x5e/0x80 [ 3950.395693][ T253] fib6_nh_init+0x3d8/0x1580 [ 3950.395693][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3950.395693][ T253] ip6_route_add+0x1c/0x140 [ 3950.395693][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3950.395693][ T253] addrconf_add_dev+0xe2/0x170 [ 3950.395693][ T253] inet6_addr_add+0x12f/0xa40 [ 3950.395693][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3950.395693][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3950.395693][ T253] netlink_rcv_skb+0x130/0x360 [ 3950.395693][ T253] netlink_unicast+0x449/0x710 [ 3950.395693][ T253] netlink_sendmsg+0x723/0xbe0 [ 3950.395693][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3950.395693][ T253] ___sys_sendmsg+0xee/0x170 [ 3950.395693][ T253] __sys_sendmsg+0xcd/0x170 [ 3950.395693][ T253] do_syscall_64+0xc6/0x1e0 [ 3950.395693][ T253] [ 3950.397895][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3950.397895][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3950.397895][ T253] ipv6_find_idev+0x102/0x170 [ 3950.397895][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3950.397895][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3950.397895][ T253] netlink_rcv_skb+0x130/0x360 [ 3950.397895][ T253] netlink_unicast+0x449/0x710 [ 3950.397895][ T253] netlink_sendmsg+0x723/0xbe0 [ 3950.397895][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3950.397895][ T253] ___sys_sendmsg+0xee/0x170 [ 3950.397895][ T253] __sys_sendmsg+0xcd/0x170 [ 3950.397895][ T253] do_syscall_64+0xc6/0x1e0 [ 3950.397895][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3950.397895][ T253] [ 3950.399617][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3950.399617][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3950.399617][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3950.399617][ T253] ipv6_find_idev+0x102/0x170 [ 3950.399617][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3950.399617][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3950.399617][ T253] netlink_rcv_skb+0x130/0x360 [ 3950.399617][ T253] netlink_unicast+0x449/0x710 [ 3950.399617][ T253] netlink_sendmsg+0x723/0xbe0 [ 3950.399617][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3950.399617][ T253] ___sys_sendmsg+0xee/0x170 [ 3950.399617][ T253] __sys_sendmsg+0xcd/0x170 [ 3950.399617][ T253] do_syscall_64+0xc6/0x1e0 [ 3950.399617][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3950.399617][ T253] [ 3960.650330][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3960.650766][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3960.650766][ T253] dst_init+0x84/0x4a0 [ 3960.650766][ T253] dst_alloc+0x97/0x150 [ 3960.650766][ T253] ip6_dst_alloc+0x23/0x90 [ 3960.650766][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3960.650766][ T253] ip6_pol_route+0x56f/0x840 [ 3960.650766][ T253] fib6_rule_lookup+0x334/0x630 [ 3960.650766][ T253] ip6_route_output_flags+0x259/0x480 [ 3960.650766][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3960.650766][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3960.650766][ T253] netlink_rcv_skb+0x130/0x360 [ 3960.650766][ T253] netlink_unicast+0x449/0x710 [ 3960.650766][ T253] netlink_sendmsg+0x723/0xbe0 [ 3960.650766][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3960.650766][ T253] ___sys_sendmsg+0xee/0x170 [ 3960.650766][ T253] __sys_sendmsg+0xcd/0x170 [ 3960.650766][ T253] do_syscall_64+0xc6/0x1e0 [ 3960.650766][ T253] [ 3960.652991][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3960.652991][ T253] netdev_get_by_index+0x5e/0x80 [ 3960.652991][ T253] fib6_nh_init+0x3d8/0x1580 [ 3960.652991][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3960.652991][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3960.652991][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3960.652991][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3960.652991][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3960.652991][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3960.652991][ T253] addrconf_dad_begin+0x310/0x670 [ 3960.652991][ T253] addrconf_dad_work+0x10b/0xab0 [ 3960.652991][ T253] process_one_work+0x84d/0x18a0 [ 3960.652991][ T253] worker_thread+0x587/0xd30 [ 3960.652991][ T253] kthread+0x28a/0x350 [ 3960.652991][ T253] ret_from_fork+0x31/0x70 [ 3960.652991][ T253] ret_from_fork_asm+0x1a/0x30 [ 3960.652991][ T253] [ 3960.655159][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3960.655159][ T253] netdev_get_by_index+0x5e/0x80 [ 3960.655159][ T253] fib6_nh_init+0x3d8/0x1580 [ 3960.655159][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3960.655159][ T253] ip6_route_add+0x1c/0x140 [ 3960.655159][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3960.655159][ T253] inet6_addr_add+0x4f8/0xa40 [ 3960.655159][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3960.655159][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3960.655159][ T253] netlink_rcv_skb+0x130/0x360 [ 3960.655159][ T253] netlink_unicast+0x449/0x710 [ 3960.655159][ T253] netlink_sendmsg+0x723/0xbe0 [ 3960.655159][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3960.655159][ T253] ___sys_sendmsg+0xee/0x170 [ 3960.655159][ T253] __sys_sendmsg+0xcd/0x170 [ 3960.655159][ T253] do_syscall_64+0xc6/0x1e0 [ 3960.655159][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3960.655159][ T253] [ 3960.657417][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3960.657417][ T253] netdev_get_by_index+0x5e/0x80 [ 3960.657417][ T253] fib6_nh_init+0x3d8/0x1580 [ 3960.657417][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3960.657417][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3960.657417][ T253] ipv6_add_addr+0x411/0x2000 [ 3960.657417][ T253] inet6_addr_add+0x30e/0xa40 [ 3960.657417][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3960.657417][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3960.657417][ T253] netlink_rcv_skb+0x130/0x360 [ 3960.657417][ T253] netlink_unicast+0x449/0x710 [ 3960.657417][ T253] netlink_sendmsg+0x723/0xbe0 [ 3960.657417][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3960.657417][ T253] ___sys_sendmsg+0xee/0x170 [ 3960.657417][ T253] __sys_sendmsg+0xcd/0x170 [ 3960.657417][ T253] do_syscall_64+0xc6/0x1e0 [ 3960.657417][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3960.657417][ T253] [ 3960.659696][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3960.659696][ T253] netdev_get_by_index+0x5e/0x80 [ 3960.659696][ T253] fib6_nh_init+0x3d8/0x1580 [ 3960.659696][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3960.659696][ T253] ip6_route_add+0x1c/0x140 [ 3960.659696][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3960.659696][ T253] addrconf_add_dev+0xe2/0x170 [ 3960.659696][ T253] inet6_addr_add+0x12f/0xa40 [ 3960.659696][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3960.659696][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3960.659696][ T253] netlink_rcv_skb+0x130/0x360 [ 3960.659696][ T253] netlink_unicast+0x449/0x710 [ 3960.659696][ T253] netlink_sendmsg+0x723/0xbe0 [ 3960.659696][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3960.659696][ T253] ___sys_sendmsg+0xee/0x170 [ 3960.659696][ T253] __sys_sendmsg+0xcd/0x170 [ 3960.659696][ T253] do_syscall_64+0xc6/0x1e0 [ 3960.659696][ T253] [ 3960.661925][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3960.661925][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3960.661925][ T253] ipv6_find_idev+0x102/0x170 [ 3960.661925][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3960.661925][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3960.661925][ T253] netlink_rcv_skb+0x130/0x360 [ 3960.661925][ T253] netlink_unicast+0x449/0x710 [ 3960.661925][ T253] netlink_sendmsg+0x723/0xbe0 [ 3960.661925][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3960.661925][ T253] ___sys_sendmsg+0xee/0x170 [ 3960.661925][ T253] __sys_sendmsg+0xcd/0x170 [ 3960.661925][ T253] do_syscall_64+0xc6/0x1e0 [ 3960.661925][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3960.661925][ T253] [ 3960.663667][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3960.663667][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3960.663667][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3960.663667][ T253] ipv6_find_idev+0x102/0x170 [ 3960.663667][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3960.663667][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3960.663667][ T253] netlink_rcv_skb+0x130/0x360 [ 3960.663667][ T253] netlink_unicast+0x449/0x710 [ 3960.663667][ T253] netlink_sendmsg+0x723/0xbe0 [ 3960.663667][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3960.663667][ T253] ___sys_sendmsg+0xee/0x170 [ 3960.663667][ T253] __sys_sendmsg+0xcd/0x170 [ 3960.663667][ T253] do_syscall_64+0xc6/0x1e0 [ 3960.663667][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3960.663667][ T253] [ 3970.842437][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3970.842964][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3970.842964][ T253] dst_init+0x84/0x4a0 [ 3970.842964][ T253] dst_alloc+0x97/0x150 [ 3970.842964][ T253] ip6_dst_alloc+0x23/0x90 [ 3970.842964][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3970.842964][ T253] ip6_pol_route+0x56f/0x840 [ 3970.842964][ T253] fib6_rule_lookup+0x334/0x630 [ 3970.842964][ T253] ip6_route_output_flags+0x259/0x480 [ 3970.842964][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3970.842964][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3970.842964][ T253] netlink_rcv_skb+0x130/0x360 [ 3970.842964][ T253] netlink_unicast+0x449/0x710 [ 3970.842964][ T253] netlink_sendmsg+0x723/0xbe0 [ 3970.842964][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3970.842964][ T253] ___sys_sendmsg+0xee/0x170 [ 3970.842964][ T253] __sys_sendmsg+0xcd/0x170 [ 3970.842964][ T253] do_syscall_64+0xc6/0x1e0 [ 3970.842964][ T253] [ 3970.845193][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3970.845193][ T253] netdev_get_by_index+0x5e/0x80 [ 3970.845193][ T253] fib6_nh_init+0x3d8/0x1580 [ 3970.845193][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3970.845193][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3970.845193][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3970.845193][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3970.845193][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3970.845193][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3970.845193][ T253] addrconf_dad_begin+0x310/0x670 [ 3970.845193][ T253] addrconf_dad_work+0x10b/0xab0 [ 3970.845193][ T253] process_one_work+0x84d/0x18a0 [ 3970.845193][ T253] worker_thread+0x587/0xd30 [ 3970.845193][ T253] kthread+0x28a/0x350 [ 3970.845193][ T253] ret_from_fork+0x31/0x70 [ 3970.845193][ T253] ret_from_fork_asm+0x1a/0x30 [ 3970.845193][ T253] [ 3970.847364][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3970.847364][ T253] netdev_get_by_index+0x5e/0x80 [ 3970.847364][ T253] fib6_nh_init+0x3d8/0x1580 [ 3970.847364][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3970.847364][ T253] ip6_route_add+0x1c/0x140 [ 3970.847364][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3970.847364][ T253] inet6_addr_add+0x4f8/0xa40 [ 3970.847364][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3970.847364][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3970.847364][ T253] netlink_rcv_skb+0x130/0x360 [ 3970.847364][ T253] netlink_unicast+0x449/0x710 [ 3970.847364][ T253] netlink_sendmsg+0x723/0xbe0 [ 3970.847364][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3970.847364][ T253] ___sys_sendmsg+0xee/0x170 [ 3970.847364][ T253] __sys_sendmsg+0xcd/0x170 [ 3970.847364][ T253] do_syscall_64+0xc6/0x1e0 [ 3970.847364][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3970.847364][ T253] [ 3970.849648][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3970.849648][ T253] netdev_get_by_index+0x5e/0x80 [ 3970.849648][ T253] fib6_nh_init+0x3d8/0x1580 [ 3970.849648][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3970.849648][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3970.849648][ T253] ipv6_add_addr+0x411/0x2000 [ 3970.849648][ T253] inet6_addr_add+0x30e/0xa40 [ 3970.849648][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3970.849648][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3970.849648][ T253] netlink_rcv_skb+0x130/0x360 [ 3970.849648][ T253] netlink_unicast+0x449/0x710 [ 3970.849648][ T253] netlink_sendmsg+0x723/0xbe0 [ 3970.849648][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3970.849648][ T253] ___sys_sendmsg+0xee/0x170 [ 3970.849648][ T253] __sys_sendmsg+0xcd/0x170 [ 3970.849648][ T253] do_syscall_64+0xc6/0x1e0 [ 3970.849648][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3970.849648][ T253] [ 3970.851931][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3970.851931][ T253] netdev_get_by_index+0x5e/0x80 [ 3970.851931][ T253] fib6_nh_init+0x3d8/0x1580 [ 3970.851931][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3970.851931][ T253] ip6_route_add+0x1c/0x140 [ 3970.851931][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3970.851931][ T253] addrconf_add_dev+0xe2/0x170 [ 3970.851931][ T253] inet6_addr_add+0x12f/0xa40 [ 3970.851931][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3970.851931][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3970.851931][ T253] netlink_rcv_skb+0x130/0x360 [ 3970.851931][ T253] netlink_unicast+0x449/0x710 [ 3970.851931][ T253] netlink_sendmsg+0x723/0xbe0 [ 3970.851931][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3970.851931][ T253] ___sys_sendmsg+0xee/0x170 [ 3970.851931][ T253] __sys_sendmsg+0xcd/0x170 [ 3970.851931][ T253] do_syscall_64+0xc6/0x1e0 [ 3970.851931][ T253] [ 3970.854156][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3970.854156][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3970.854156][ T253] ipv6_find_idev+0x102/0x170 [ 3970.854156][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3970.854156][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3970.854156][ T253] netlink_rcv_skb+0x130/0x360 [ 3970.854156][ T253] netlink_unicast+0x449/0x710 [ 3970.854156][ T253] netlink_sendmsg+0x723/0xbe0 [ 3970.854156][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3970.854156][ T253] ___sys_sendmsg+0xee/0x170 [ 3970.854156][ T253] __sys_sendmsg+0xcd/0x170 [ 3970.854156][ T253] do_syscall_64+0xc6/0x1e0 [ 3970.854156][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3970.854156][ T253] [ 3970.855897][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3970.855897][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3970.855897][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3970.855897][ T253] ipv6_find_idev+0x102/0x170 [ 3970.855897][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3970.855897][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3970.855897][ T253] netlink_rcv_skb+0x130/0x360 [ 3970.855897][ T253] netlink_unicast+0x449/0x710 [ 3970.855897][ T253] netlink_sendmsg+0x723/0xbe0 [ 3970.855897][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3970.855897][ T253] ___sys_sendmsg+0xee/0x170 [ 3970.855897][ T253] __sys_sendmsg+0xcd/0x170 [ 3970.855897][ T253] do_syscall_64+0xc6/0x1e0 [ 3970.855897][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3970.855897][ T253] [ 3980.890315][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3980.890804][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3980.890804][ T253] dst_init+0x84/0x4a0 [ 3980.890804][ T253] dst_alloc+0x97/0x150 [ 3980.890804][ T253] ip6_dst_alloc+0x23/0x90 [ 3980.890804][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3980.890804][ T253] ip6_pol_route+0x56f/0x840 [ 3980.890804][ T253] fib6_rule_lookup+0x334/0x630 [ 3980.890804][ T253] ip6_route_output_flags+0x259/0x480 [ 3980.890804][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3980.890804][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3980.890804][ T253] netlink_rcv_skb+0x130/0x360 [ 3980.890804][ T253] netlink_unicast+0x449/0x710 [ 3980.890804][ T253] netlink_sendmsg+0x723/0xbe0 [ 3980.890804][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3980.890804][ T253] ___sys_sendmsg+0xee/0x170 [ 3980.890804][ T253] __sys_sendmsg+0xcd/0x170 [ 3980.890804][ T253] do_syscall_64+0xc6/0x1e0 [ 3980.890804][ T253] [ 3980.893036][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3980.893036][ T253] netdev_get_by_index+0x5e/0x80 [ 3980.893036][ T253] fib6_nh_init+0x3d8/0x1580 [ 3980.893036][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3980.893036][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3980.893036][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3980.893036][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3980.893036][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3980.893036][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3980.893036][ T253] addrconf_dad_begin+0x310/0x670 [ 3980.893036][ T253] addrconf_dad_work+0x10b/0xab0 [ 3980.893036][ T253] process_one_work+0x84d/0x18a0 [ 3980.893036][ T253] worker_thread+0x587/0xd30 [ 3980.893036][ T253] kthread+0x28a/0x350 [ 3980.893036][ T253] ret_from_fork+0x31/0x70 [ 3980.893036][ T253] ret_from_fork_asm+0x1a/0x30 [ 3980.893036][ T253] [ 3980.895211][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3980.895211][ T253] netdev_get_by_index+0x5e/0x80 [ 3980.895211][ T253] fib6_nh_init+0x3d8/0x1580 [ 3980.895211][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3980.895211][ T253] ip6_route_add+0x1c/0x140 [ 3980.895211][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3980.895211][ T253] inet6_addr_add+0x4f8/0xa40 [ 3980.895211][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3980.895211][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3980.895211][ T253] netlink_rcv_skb+0x130/0x360 [ 3980.895211][ T253] netlink_unicast+0x449/0x710 [ 3980.895211][ T253] netlink_sendmsg+0x723/0xbe0 [ 3980.895211][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3980.895211][ T253] ___sys_sendmsg+0xee/0x170 [ 3980.895211][ T253] __sys_sendmsg+0xcd/0x170 [ 3980.895211][ T253] do_syscall_64+0xc6/0x1e0 [ 3980.895211][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3980.895211][ T253] [ 3980.897483][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3980.897483][ T253] netdev_get_by_index+0x5e/0x80 [ 3980.897483][ T253] fib6_nh_init+0x3d8/0x1580 [ 3980.897483][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3980.897483][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3980.897483][ T253] ipv6_add_addr+0x411/0x2000 [ 3980.897483][ T253] inet6_addr_add+0x30e/0xa40 [ 3980.897483][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3980.897483][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3980.897483][ T253] netlink_rcv_skb+0x130/0x360 [ 3980.897483][ T253] netlink_unicast+0x449/0x710 [ 3980.897483][ T253] netlink_sendmsg+0x723/0xbe0 [ 3980.897483][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3980.897483][ T253] ___sys_sendmsg+0xee/0x170 [ 3980.897483][ T253] __sys_sendmsg+0xcd/0x170 [ 3980.897483][ T253] do_syscall_64+0xc6/0x1e0 [ 3980.897483][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3980.897483][ T253] [ 3980.899755][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3980.899755][ T253] netdev_get_by_index+0x5e/0x80 [ 3980.899755][ T253] fib6_nh_init+0x3d8/0x1580 [ 3980.899755][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3980.899755][ T253] ip6_route_add+0x1c/0x140 [ 3980.899755][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3980.899755][ T253] addrconf_add_dev+0xe2/0x170 [ 3980.899755][ T253] inet6_addr_add+0x12f/0xa40 [ 3980.899755][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3980.899755][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3980.899755][ T253] netlink_rcv_skb+0x130/0x360 [ 3980.899755][ T253] netlink_unicast+0x449/0x710 [ 3980.899755][ T253] netlink_sendmsg+0x723/0xbe0 [ 3980.899755][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3980.899755][ T253] ___sys_sendmsg+0xee/0x170 [ 3980.899755][ T253] __sys_sendmsg+0xcd/0x170 [ 3980.899755][ T253] do_syscall_64+0xc6/0x1e0 [ 3980.899755][ T253] [ 3980.902511][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3980.902511][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3980.902511][ T253] ipv6_find_idev+0x102/0x170 [ 3980.902511][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3980.902511][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3980.902511][ T253] netlink_rcv_skb+0x130/0x360 [ 3980.902511][ T253] netlink_unicast+0x449/0x710 [ 3980.902511][ T253] netlink_sendmsg+0x723/0xbe0 [ 3980.902511][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3980.902511][ T253] ___sys_sendmsg+0xee/0x170 [ 3980.902511][ T253] __sys_sendmsg+0xcd/0x170 [ 3980.902511][ T253] do_syscall_64+0xc6/0x1e0 [ 3980.902511][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3980.902511][ T253] [ 3980.904249][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3980.904249][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3980.904249][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3980.904249][ T253] ipv6_find_idev+0x102/0x170 [ 3980.904249][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3980.904249][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3980.904249][ T253] netlink_rcv_skb+0x130/0x360 [ 3980.904249][ T253] netlink_unicast+0x449/0x710 [ 3980.904249][ T253] netlink_sendmsg+0x723/0xbe0 [ 3980.904249][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3980.904249][ T253] ___sys_sendmsg+0xee/0x170 [ 3980.904249][ T253] __sys_sendmsg+0xcd/0x170 [ 3980.904249][ T253] do_syscall_64+0xc6/0x1e0 [ 3980.904249][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3980.904249][ T253] [ 3991.034302][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3991.034788][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3991.034788][ T253] dst_init+0x84/0x4a0 [ 3991.034788][ T253] dst_alloc+0x97/0x150 [ 3991.034788][ T253] ip6_dst_alloc+0x23/0x90 [ 3991.034788][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3991.034788][ T253] ip6_pol_route+0x56f/0x840 [ 3991.034788][ T253] fib6_rule_lookup+0x334/0x630 [ 3991.034788][ T253] ip6_route_output_flags+0x259/0x480 [ 3991.034788][ T253] inet6_rtm_getroute+0x980/0xf70 [ 3991.034788][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 3991.034788][ T253] netlink_rcv_skb+0x130/0x360 [ 3991.034788][ T253] netlink_unicast+0x449/0x710 [ 3991.034788][ T253] netlink_sendmsg+0x723/0xbe0 [ 3991.034788][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3991.034788][ T253] ___sys_sendmsg+0xee/0x170 [ 3991.034788][ T253] __sys_sendmsg+0xcd/0x170 [ 3991.034788][ T253] do_syscall_64+0xc6/0x1e0 [ 3991.034788][ T253] [ 3991.037003][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3991.037003][ T253] netdev_get_by_index+0x5e/0x80 [ 3991.037003][ T253] fib6_nh_init+0x3d8/0x1580 [ 3991.037003][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3991.037003][ T253] addrconf_f6i_alloc+0x265/0x560 [ 3991.037003][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3991.037003][ T253] addrconf_join_anycast+0x1c0/0x220 [ 3991.037003][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3991.037003][ T253] addrconf_dad_completed+0x12b/0xe20 [ 3991.037003][ T253] addrconf_dad_begin+0x310/0x670 [ 3991.037003][ T253] addrconf_dad_work+0x10b/0xab0 [ 3991.037003][ T253] process_one_work+0x84d/0x18a0 [ 3991.037003][ T253] worker_thread+0x587/0xd30 [ 3991.037003][ T253] kthread+0x28a/0x350 [ 3991.037003][ T253] ret_from_fork+0x31/0x70 [ 3991.037003][ T253] ret_from_fork_asm+0x1a/0x30 [ 3991.037003][ T253] [ 3991.039275][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3991.039275][ T253] netdev_get_by_index+0x5e/0x80 [ 3991.039275][ T253] fib6_nh_init+0x3d8/0x1580 [ 3991.039275][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3991.039275][ T253] ip6_route_add+0x1c/0x140 [ 3991.039275][ T253] addrconf_prefix_route+0x2a6/0x430 [ 3991.039275][ T253] inet6_addr_add+0x4f8/0xa40 [ 3991.039275][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3991.039275][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3991.039275][ T253] netlink_rcv_skb+0x130/0x360 [ 3991.039275][ T253] netlink_unicast+0x449/0x710 [ 3991.039275][ T253] netlink_sendmsg+0x723/0xbe0 [ 3991.039275][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3991.039275][ T253] ___sys_sendmsg+0xee/0x170 [ 3991.039275][ T253] __sys_sendmsg+0xcd/0x170 [ 3991.039275][ T253] do_syscall_64+0xc6/0x1e0 [ 3991.039275][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3991.039275][ T253] [ 3991.041547][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3991.041547][ T253] netdev_get_by_index+0x5e/0x80 [ 3991.041547][ T253] fib6_nh_init+0x3d8/0x1580 [ 3991.041547][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3991.041547][ T253] addrconf_f6i_alloc+0x315/0x560 [ 3991.041547][ T253] ipv6_add_addr+0x411/0x2000 [ 3991.041547][ T253] inet6_addr_add+0x30e/0xa40 [ 3991.041547][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3991.041547][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3991.041547][ T253] netlink_rcv_skb+0x130/0x360 [ 3991.041547][ T253] netlink_unicast+0x449/0x710 [ 3991.041547][ T253] netlink_sendmsg+0x723/0xbe0 [ 3991.041547][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3991.041547][ T253] ___sys_sendmsg+0xee/0x170 [ 3991.041547][ T253] __sys_sendmsg+0xcd/0x170 [ 3991.041547][ T253] do_syscall_64+0xc6/0x1e0 [ 3991.041547][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3991.041547][ T253] [ 3991.043804][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3991.043804][ T253] netdev_get_by_index+0x5e/0x80 [ 3991.043804][ T253] fib6_nh_init+0x3d8/0x1580 [ 3991.043804][ T253] ip6_route_info_create+0xf18/0x17d0 [ 3991.043804][ T253] ip6_route_add+0x1c/0x140 [ 3991.043804][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 3991.043804][ T253] addrconf_add_dev+0xe2/0x170 [ 3991.043804][ T253] inet6_addr_add+0x12f/0xa40 [ 3991.043804][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 3991.043804][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3991.043804][ T253] netlink_rcv_skb+0x130/0x360 [ 3991.043804][ T253] netlink_unicast+0x449/0x710 [ 3991.043804][ T253] netlink_sendmsg+0x723/0xbe0 [ 3991.043804][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3991.043804][ T253] ___sys_sendmsg+0xee/0x170 [ 3991.043804][ T253] __sys_sendmsg+0xcd/0x170 [ 3991.043804][ T253] do_syscall_64+0xc6/0x1e0 [ 3991.043804][ T253] [ 3991.046028][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3991.046028][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 3991.046028][ T253] ipv6_find_idev+0x102/0x170 [ 3991.046028][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3991.046028][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3991.046028][ T253] netlink_rcv_skb+0x130/0x360 [ 3991.046028][ T253] netlink_unicast+0x449/0x710 [ 3991.046028][ T253] netlink_sendmsg+0x723/0xbe0 [ 3991.046028][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3991.046028][ T253] ___sys_sendmsg+0xee/0x170 [ 3991.046028][ T253] __sys_sendmsg+0xcd/0x170 [ 3991.046028][ T253] do_syscall_64+0xc6/0x1e0 [ 3991.046028][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3991.046028][ T253] [ 3991.047768][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 3991.047768][ T253] neigh_parms_alloc+0x1e5/0x510 [ 3991.047768][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 3991.047768][ T253] ipv6_find_idev+0x102/0x170 [ 3991.047768][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 3991.047768][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3991.047768][ T253] netlink_rcv_skb+0x130/0x360 [ 3991.047768][ T253] netlink_unicast+0x449/0x710 [ 3991.047768][ T253] netlink_sendmsg+0x723/0xbe0 [ 3991.047768][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 3991.047768][ T253] ___sys_sendmsg+0xee/0x170 [ 3991.047768][ T253] __sys_sendmsg+0xcd/0x170 [ 3991.047768][ T253] do_syscall_64+0xc6/0x1e0 [ 3991.047768][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3991.047768][ T253] [ 4001.290333][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4001.290794][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4001.290794][ T253] dst_init+0x84/0x4a0 [ 4001.290794][ T253] dst_alloc+0x97/0x150 [ 4001.290794][ T253] ip6_dst_alloc+0x23/0x90 [ 4001.290794][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4001.290794][ T253] ip6_pol_route+0x56f/0x840 [ 4001.290794][ T253] fib6_rule_lookup+0x334/0x630 [ 4001.290794][ T253] ip6_route_output_flags+0x259/0x480 [ 4001.290794][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4001.290794][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4001.290794][ T253] netlink_rcv_skb+0x130/0x360 [ 4001.290794][ T253] netlink_unicast+0x449/0x710 [ 4001.290794][ T253] netlink_sendmsg+0x723/0xbe0 [ 4001.290794][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4001.290794][ T253] ___sys_sendmsg+0xee/0x170 [ 4001.290794][ T253] __sys_sendmsg+0xcd/0x170 [ 4001.290794][ T253] do_syscall_64+0xc6/0x1e0 [ 4001.290794][ T253] [ 4001.293024][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4001.293024][ T253] netdev_get_by_index+0x5e/0x80 [ 4001.293024][ T253] fib6_nh_init+0x3d8/0x1580 [ 4001.293024][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4001.293024][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4001.293024][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4001.293024][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4001.293024][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4001.293024][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4001.293024][ T253] addrconf_dad_begin+0x310/0x670 [ 4001.293024][ T253] addrconf_dad_work+0x10b/0xab0 [ 4001.293024][ T253] process_one_work+0x84d/0x18a0 [ 4001.293024][ T253] worker_thread+0x587/0xd30 [ 4001.293024][ T253] kthread+0x28a/0x350 [ 4001.293024][ T253] ret_from_fork+0x31/0x70 [ 4001.293024][ T253] ret_from_fork_asm+0x1a/0x30 [ 4001.293024][ T253] [ 4001.295200][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4001.295200][ T253] netdev_get_by_index+0x5e/0x80 [ 4001.295200][ T253] fib6_nh_init+0x3d8/0x1580 [ 4001.295200][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4001.295200][ T253] ip6_route_add+0x1c/0x140 [ 4001.295200][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4001.295200][ T253] inet6_addr_add+0x4f8/0xa40 [ 4001.295200][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4001.295200][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4001.295200][ T253] netlink_rcv_skb+0x130/0x360 [ 4001.295200][ T253] netlink_unicast+0x449/0x710 [ 4001.295200][ T253] netlink_sendmsg+0x723/0xbe0 [ 4001.295200][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4001.295200][ T253] ___sys_sendmsg+0xee/0x170 [ 4001.295200][ T253] __sys_sendmsg+0xcd/0x170 [ 4001.295200][ T253] do_syscall_64+0xc6/0x1e0 [ 4001.295200][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4001.295200][ T253] [ 4001.297466][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4001.297466][ T253] netdev_get_by_index+0x5e/0x80 [ 4001.297466][ T253] fib6_nh_init+0x3d8/0x1580 [ 4001.297466][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4001.297466][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4001.297466][ T253] ipv6_add_addr+0x411/0x2000 [ 4001.297466][ T253] inet6_addr_add+0x30e/0xa40 [ 4001.297466][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4001.297466][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4001.297466][ T253] netlink_rcv_skb+0x130/0x360 [ 4001.297466][ T253] netlink_unicast+0x449/0x710 [ 4001.297466][ T253] netlink_sendmsg+0x723/0xbe0 [ 4001.297466][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4001.297466][ T253] ___sys_sendmsg+0xee/0x170 [ 4001.297466][ T253] __sys_sendmsg+0xcd/0x170 [ 4001.297466][ T253] do_syscall_64+0xc6/0x1e0 [ 4001.297466][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4001.297466][ T253] [ 4001.299771][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4001.299771][ T253] netdev_get_by_index+0x5e/0x80 [ 4001.299771][ T253] fib6_nh_init+0x3d8/0x1580 [ 4001.299771][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4001.299771][ T253] ip6_route_add+0x1c/0x140 [ 4001.299771][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4001.299771][ T253] addrconf_add_dev+0xe2/0x170 [ 4001.299771][ T253] inet6_addr_add+0x12f/0xa40 [ 4001.299771][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4001.299771][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4001.299771][ T253] netlink_rcv_skb+0x130/0x360 [ 4001.299771][ T253] netlink_unicast+0x449/0x710 [ 4001.299771][ T253] netlink_sendmsg+0x723/0xbe0 [ 4001.299771][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4001.299771][ T253] ___sys_sendmsg+0xee/0x170 [ 4001.299771][ T253] __sys_sendmsg+0xcd/0x170 [ 4001.299771][ T253] do_syscall_64+0xc6/0x1e0 [ 4001.299771][ T253] [ 4001.302011][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4001.302011][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4001.302011][ T253] ipv6_find_idev+0x102/0x170 [ 4001.302011][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4001.302011][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4001.302011][ T253] netlink_rcv_skb+0x130/0x360 [ 4001.302011][ T253] netlink_unicast+0x449/0x710 [ 4001.302011][ T253] netlink_sendmsg+0x723/0xbe0 [ 4001.302011][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4001.302011][ T253] ___sys_sendmsg+0xee/0x170 [ 4001.302011][ T253] __sys_sendmsg+0xcd/0x170 [ 4001.302011][ T253] do_syscall_64+0xc6/0x1e0 [ 4001.302011][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4001.302011][ T253] [ 4001.303760][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4001.303760][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4001.303760][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4001.303760][ T253] ipv6_find_idev+0x102/0x170 [ 4001.303760][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4001.303760][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4001.303760][ T253] netlink_rcv_skb+0x130/0x360 [ 4001.303760][ T253] netlink_unicast+0x449/0x710 [ 4001.303760][ T253] netlink_sendmsg+0x723/0xbe0 [ 4001.303760][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4001.303760][ T253] ___sys_sendmsg+0xee/0x170 [ 4001.303760][ T253] __sys_sendmsg+0xcd/0x170 [ 4001.303760][ T253] do_syscall_64+0xc6/0x1e0 [ 4001.303760][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4001.303760][ T253] [ 4011.450321][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4011.450793][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4011.450793][ T253] dst_init+0x84/0x4a0 [ 4011.450793][ T253] dst_alloc+0x97/0x150 [ 4011.450793][ T253] ip6_dst_alloc+0x23/0x90 [ 4011.450793][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4011.450793][ T253] ip6_pol_route+0x56f/0x840 [ 4011.450793][ T253] fib6_rule_lookup+0x334/0x630 [ 4011.450793][ T253] ip6_route_output_flags+0x259/0x480 [ 4011.450793][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4011.450793][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4011.450793][ T253] netlink_rcv_skb+0x130/0x360 [ 4011.450793][ T253] netlink_unicast+0x449/0x710 [ 4011.450793][ T253] netlink_sendmsg+0x723/0xbe0 [ 4011.450793][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4011.450793][ T253] ___sys_sendmsg+0xee/0x170 [ 4011.450793][ T253] __sys_sendmsg+0xcd/0x170 [ 4011.450793][ T253] do_syscall_64+0xc6/0x1e0 [ 4011.450793][ T253] [ 4011.453204][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4011.453204][ T253] netdev_get_by_index+0x5e/0x80 [ 4011.453204][ T253] fib6_nh_init+0x3d8/0x1580 [ 4011.453204][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4011.453204][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4011.453204][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4011.453204][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4011.453204][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4011.453204][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4011.453204][ T253] addrconf_dad_begin+0x310/0x670 [ 4011.453204][ T253] addrconf_dad_work+0x10b/0xab0 [ 4011.453204][ T253] process_one_work+0x84d/0x18a0 [ 4011.453204][ T253] worker_thread+0x587/0xd30 [ 4011.453204][ T253] kthread+0x28a/0x350 [ 4011.453204][ T253] ret_from_fork+0x31/0x70 [ 4011.453204][ T253] ret_from_fork_asm+0x1a/0x30 [ 4011.453204][ T253] [ 4011.455564][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4011.455564][ T253] netdev_get_by_index+0x5e/0x80 [ 4011.455564][ T253] fib6_nh_init+0x3d8/0x1580 [ 4011.455564][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4011.455564][ T253] ip6_route_add+0x1c/0x140 [ 4011.455564][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4011.455564][ T253] inet6_addr_add+0x4f8/0xa40 [ 4011.455564][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4011.455564][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4011.455564][ T253] netlink_rcv_skb+0x130/0x360 [ 4011.455564][ T253] netlink_unicast+0x449/0x710 [ 4011.455564][ T253] netlink_sendmsg+0x723/0xbe0 [ 4011.455564][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4011.455564][ T253] ___sys_sendmsg+0xee/0x170 [ 4011.455564][ T253] __sys_sendmsg+0xcd/0x170 [ 4011.455564][ T253] do_syscall_64+0xc6/0x1e0 [ 4011.455564][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4011.455564][ T253] [ 4011.458027][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4011.458027][ T253] netdev_get_by_index+0x5e/0x80 [ 4011.458027][ T253] fib6_nh_init+0x3d8/0x1580 [ 4011.458027][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4011.458027][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4011.458027][ T253] ipv6_add_addr+0x411/0x2000 [ 4011.458027][ T253] inet6_addr_add+0x30e/0xa40 [ 4011.458027][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4011.458027][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4011.458027][ T253] netlink_rcv_skb+0x130/0x360 [ 4011.458027][ T253] netlink_unicast+0x449/0x710 [ 4011.458027][ T253] netlink_sendmsg+0x723/0xbe0 [ 4011.458027][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4011.458027][ T253] ___sys_sendmsg+0xee/0x170 [ 4011.458027][ T253] __sys_sendmsg+0xcd/0x170 [ 4011.458027][ T253] do_syscall_64+0xc6/0x1e0 [ 4011.458027][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4011.458027][ T253] [ 4011.460491][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4011.460491][ T253] netdev_get_by_index+0x5e/0x80 [ 4011.460491][ T253] fib6_nh_init+0x3d8/0x1580 [ 4011.460491][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4011.460491][ T253] ip6_route_add+0x1c/0x140 [ 4011.460491][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4011.460491][ T253] addrconf_add_dev+0xe2/0x170 [ 4011.460491][ T253] inet6_addr_add+0x12f/0xa40 [ 4011.460491][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4011.460491][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4011.460491][ T253] netlink_rcv_skb+0x130/0x360 [ 4011.460491][ T253] netlink_unicast+0x449/0x710 [ 4011.460491][ T253] netlink_sendmsg+0x723/0xbe0 [ 4011.460491][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4011.460491][ T253] ___sys_sendmsg+0xee/0x170 [ 4011.460491][ T253] __sys_sendmsg+0xcd/0x170 [ 4011.460491][ T253] do_syscall_64+0xc6/0x1e0 [ 4011.460491][ T253] [ 4011.462774][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4011.462774][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4011.462774][ T253] ipv6_find_idev+0x102/0x170 [ 4011.462774][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4011.462774][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4011.462774][ T253] netlink_rcv_skb+0x130/0x360 [ 4011.462774][ T253] netlink_unicast+0x449/0x710 [ 4011.462774][ T253] netlink_sendmsg+0x723/0xbe0 [ 4011.462774][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4011.462774][ T253] ___sys_sendmsg+0xee/0x170 [ 4011.462774][ T253] __sys_sendmsg+0xcd/0x170 [ 4011.462774][ T253] do_syscall_64+0xc6/0x1e0 [ 4011.462774][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4011.462774][ T253] [ 4011.464537][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4011.464537][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4011.464537][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4011.464537][ T253] ipv6_find_idev+0x102/0x170 [ 4011.464537][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4011.464537][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4011.464537][ T253] netlink_rcv_skb+0x130/0x360 [ 4011.464537][ T253] netlink_unicast+0x449/0x710 [ 4011.464537][ T253] netlink_sendmsg+0x723/0xbe0 [ 4011.464537][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4011.464537][ T253] ___sys_sendmsg+0xee/0x170 [ 4011.464537][ T253] __sys_sendmsg+0xcd/0x170 [ 4011.464537][ T253] do_syscall_64+0xc6/0x1e0 [ 4011.464537][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4011.464537][ T253] [ 4021.706322][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4021.706750][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4021.706750][ T253] dst_init+0x84/0x4a0 [ 4021.706750][ T253] dst_alloc+0x97/0x150 [ 4021.706750][ T253] ip6_dst_alloc+0x23/0x90 [ 4021.706750][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4021.706750][ T253] ip6_pol_route+0x56f/0x840 [ 4021.706750][ T253] fib6_rule_lookup+0x334/0x630 [ 4021.706750][ T253] ip6_route_output_flags+0x259/0x480 [ 4021.706750][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4021.706750][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4021.706750][ T253] netlink_rcv_skb+0x130/0x360 [ 4021.706750][ T253] netlink_unicast+0x449/0x710 [ 4021.706750][ T253] netlink_sendmsg+0x723/0xbe0 [ 4021.706750][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4021.706750][ T253] ___sys_sendmsg+0xee/0x170 [ 4021.706750][ T253] __sys_sendmsg+0xcd/0x170 [ 4021.706750][ T253] do_syscall_64+0xc6/0x1e0 [ 4021.706750][ T253] [ 4021.708969][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4021.708969][ T253] netdev_get_by_index+0x5e/0x80 [ 4021.708969][ T253] fib6_nh_init+0x3d8/0x1580 [ 4021.708969][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4021.708969][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4021.708969][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4021.708969][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4021.708969][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4021.708969][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4021.708969][ T253] addrconf_dad_begin+0x310/0x670 [ 4021.708969][ T253] addrconf_dad_work+0x10b/0xab0 [ 4021.708969][ T253] process_one_work+0x84d/0x18a0 [ 4021.708969][ T253] worker_thread+0x587/0xd30 [ 4021.708969][ T253] kthread+0x28a/0x350 [ 4021.708969][ T253] ret_from_fork+0x31/0x70 [ 4021.708969][ T253] ret_from_fork_asm+0x1a/0x30 [ 4021.708969][ T253] [ 4021.711153][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4021.711153][ T253] netdev_get_by_index+0x5e/0x80 [ 4021.711153][ T253] fib6_nh_init+0x3d8/0x1580 [ 4021.711153][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4021.711153][ T253] ip6_route_add+0x1c/0x140 [ 4021.711153][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4021.711153][ T253] inet6_addr_add+0x4f8/0xa40 [ 4021.711153][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4021.711153][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4021.711153][ T253] netlink_rcv_skb+0x130/0x360 [ 4021.711153][ T253] netlink_unicast+0x449/0x710 [ 4021.711153][ T253] netlink_sendmsg+0x723/0xbe0 [ 4021.711153][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4021.711153][ T253] ___sys_sendmsg+0xee/0x170 [ 4021.711153][ T253] __sys_sendmsg+0xcd/0x170 [ 4021.711153][ T253] do_syscall_64+0xc6/0x1e0 [ 4021.711153][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4021.711153][ T253] [ 4021.713415][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4021.713415][ T253] netdev_get_by_index+0x5e/0x80 [ 4021.713415][ T253] fib6_nh_init+0x3d8/0x1580 [ 4021.713415][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4021.713415][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4021.713415][ T253] ipv6_add_addr+0x411/0x2000 [ 4021.713415][ T253] inet6_addr_add+0x30e/0xa40 [ 4021.713415][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4021.713415][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4021.713415][ T253] netlink_rcv_skb+0x130/0x360 [ 4021.713415][ T253] netlink_unicast+0x449/0x710 [ 4021.713415][ T253] netlink_sendmsg+0x723/0xbe0 [ 4021.713415][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4021.713415][ T253] ___sys_sendmsg+0xee/0x170 [ 4021.713415][ T253] __sys_sendmsg+0xcd/0x170 [ 4021.713415][ T253] do_syscall_64+0xc6/0x1e0 [ 4021.713415][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4021.713415][ T253] [ 4021.715733][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4021.715733][ T253] netdev_get_by_index+0x5e/0x80 [ 4021.715733][ T253] fib6_nh_init+0x3d8/0x1580 [ 4021.715733][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4021.715733][ T253] ip6_route_add+0x1c/0x140 [ 4021.715733][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4021.715733][ T253] addrconf_add_dev+0xe2/0x170 [ 4021.715733][ T253] inet6_addr_add+0x12f/0xa40 [ 4021.715733][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4021.715733][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4021.715733][ T253] netlink_rcv_skb+0x130/0x360 [ 4021.715733][ T253] netlink_unicast+0x449/0x710 [ 4021.715733][ T253] netlink_sendmsg+0x723/0xbe0 [ 4021.715733][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4021.715733][ T253] ___sys_sendmsg+0xee/0x170 [ 4021.715733][ T253] __sys_sendmsg+0xcd/0x170 [ 4021.715733][ T253] do_syscall_64+0xc6/0x1e0 [ 4021.715733][ T253] [ 4021.717968][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4021.717968][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4021.717968][ T253] ipv6_find_idev+0x102/0x170 [ 4021.717968][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4021.717968][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4021.717968][ T253] netlink_rcv_skb+0x130/0x360 [ 4021.717968][ T253] netlink_unicast+0x449/0x710 [ 4021.717968][ T253] netlink_sendmsg+0x723/0xbe0 [ 4021.717968][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4021.717968][ T253] ___sys_sendmsg+0xee/0x170 [ 4021.717968][ T253] __sys_sendmsg+0xcd/0x170 [ 4021.717968][ T253] do_syscall_64+0xc6/0x1e0 [ 4021.717968][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4021.717968][ T253] [ 4021.719720][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4021.719720][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4021.719720][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4021.719720][ T253] ipv6_find_idev+0x102/0x170 [ 4021.719720][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4021.719720][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4021.719720][ T253] netlink_rcv_skb+0x130/0x360 [ 4021.719720][ T253] netlink_unicast+0x449/0x710 [ 4021.719720][ T253] netlink_sendmsg+0x723/0xbe0 [ 4021.719720][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4021.719720][ T253] ___sys_sendmsg+0xee/0x170 [ 4021.719720][ T253] __sys_sendmsg+0xcd/0x170 [ 4021.719720][ T253] do_syscall_64+0xc6/0x1e0 [ 4021.719720][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4021.719720][ T253] [ 4031.962306][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4031.962798][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4031.962798][ T253] dst_init+0x84/0x4a0 [ 4031.962798][ T253] dst_alloc+0x97/0x150 [ 4031.962798][ T253] ip6_dst_alloc+0x23/0x90 [ 4031.962798][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4031.962798][ T253] ip6_pol_route+0x56f/0x840 [ 4031.962798][ T253] fib6_rule_lookup+0x334/0x630 [ 4031.962798][ T253] ip6_route_output_flags+0x259/0x480 [ 4031.962798][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4031.962798][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4031.962798][ T253] netlink_rcv_skb+0x130/0x360 [ 4031.962798][ T253] netlink_unicast+0x449/0x710 [ 4031.962798][ T253] netlink_sendmsg+0x723/0xbe0 [ 4031.962798][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4031.962798][ T253] ___sys_sendmsg+0xee/0x170 [ 4031.962798][ T253] __sys_sendmsg+0xcd/0x170 [ 4031.962798][ T253] do_syscall_64+0xc6/0x1e0 [ 4031.962798][ T253] [ 4031.965023][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4031.965023][ T253] netdev_get_by_index+0x5e/0x80 [ 4031.965023][ T253] fib6_nh_init+0x3d8/0x1580 [ 4031.965023][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4031.965023][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4031.965023][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4031.965023][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4031.965023][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4031.965023][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4031.965023][ T253] addrconf_dad_begin+0x310/0x670 [ 4031.965023][ T253] addrconf_dad_work+0x10b/0xab0 [ 4031.965023][ T253] process_one_work+0x84d/0x18a0 [ 4031.965023][ T253] worker_thread+0x587/0xd30 [ 4031.965023][ T253] kthread+0x28a/0x350 [ 4031.965023][ T253] ret_from_fork+0x31/0x70 [ 4031.965023][ T253] ret_from_fork_asm+0x1a/0x30 [ 4031.965023][ T253] [ 4031.967188][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4031.967188][ T253] netdev_get_by_index+0x5e/0x80 [ 4031.967188][ T253] fib6_nh_init+0x3d8/0x1580 [ 4031.967188][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4031.967188][ T253] ip6_route_add+0x1c/0x140 [ 4031.967188][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4031.967188][ T253] inet6_addr_add+0x4f8/0xa40 [ 4031.967188][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4031.967188][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4031.967188][ T253] netlink_rcv_skb+0x130/0x360 [ 4031.967188][ T253] netlink_unicast+0x449/0x710 [ 4031.967188][ T253] netlink_sendmsg+0x723/0xbe0 [ 4031.967188][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4031.967188][ T253] ___sys_sendmsg+0xee/0x170 [ 4031.967188][ T253] __sys_sendmsg+0xcd/0x170 [ 4031.967188][ T253] do_syscall_64+0xc6/0x1e0 [ 4031.967188][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4031.967188][ T253] [ 4031.969445][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4031.969445][ T253] netdev_get_by_index+0x5e/0x80 [ 4031.969445][ T253] fib6_nh_init+0x3d8/0x1580 [ 4031.969445][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4031.969445][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4031.969445][ T253] ipv6_add_addr+0x411/0x2000 [ 4031.969445][ T253] inet6_addr_add+0x30e/0xa40 [ 4031.969445][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4031.969445][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4031.969445][ T253] netlink_rcv_skb+0x130/0x360 [ 4031.969445][ T253] netlink_unicast+0x449/0x710 [ 4031.969445][ T253] netlink_sendmsg+0x723/0xbe0 [ 4031.969445][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4031.969445][ T253] ___sys_sendmsg+0xee/0x170 [ 4031.969445][ T253] __sys_sendmsg+0xcd/0x170 [ 4031.969445][ T253] do_syscall_64+0xc6/0x1e0 [ 4031.969445][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4031.969445][ T253] [ 4031.971712][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4031.971712][ T253] netdev_get_by_index+0x5e/0x80 [ 4031.971712][ T253] fib6_nh_init+0x3d8/0x1580 [ 4031.971712][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4031.971712][ T253] ip6_route_add+0x1c/0x140 [ 4031.971712][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4031.971712][ T253] addrconf_add_dev+0xe2/0x170 [ 4031.971712][ T253] inet6_addr_add+0x12f/0xa40 [ 4031.971712][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4031.971712][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4031.971712][ T253] netlink_rcv_skb+0x130/0x360 [ 4031.971712][ T253] netlink_unicast+0x449/0x710 [ 4031.971712][ T253] netlink_sendmsg+0x723/0xbe0 [ 4031.971712][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4031.971712][ T253] ___sys_sendmsg+0xee/0x170 [ 4031.971712][ T253] __sys_sendmsg+0xcd/0x170 [ 4031.971712][ T253] do_syscall_64+0xc6/0x1e0 [ 4031.971712][ T253] [ 4031.973940][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4031.973940][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4031.973940][ T253] ipv6_find_idev+0x102/0x170 [ 4031.973940][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4031.973940][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4031.973940][ T253] netlink_rcv_skb+0x130/0x360 [ 4031.973940][ T253] netlink_unicast+0x449/0x710 [ 4031.973940][ T253] netlink_sendmsg+0x723/0xbe0 [ 4031.973940][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4031.973940][ T253] ___sys_sendmsg+0xee/0x170 [ 4031.973940][ T253] __sys_sendmsg+0xcd/0x170 [ 4031.973940][ T253] do_syscall_64+0xc6/0x1e0 [ 4031.973940][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4031.973940][ T253] [ 4031.975677][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4031.975677][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4031.975677][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4031.975677][ T253] ipv6_find_idev+0x102/0x170 [ 4031.975677][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4031.975677][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4031.975677][ T253] netlink_rcv_skb+0x130/0x360 [ 4031.975677][ T253] netlink_unicast+0x449/0x710 [ 4031.975677][ T253] netlink_sendmsg+0x723/0xbe0 [ 4031.975677][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4031.975677][ T253] ___sys_sendmsg+0xee/0x170 [ 4031.975677][ T253] __sys_sendmsg+0xcd/0x170 [ 4031.975677][ T253] do_syscall_64+0xc6/0x1e0 [ 4031.975677][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4031.975677][ T253] [ 4042.218303][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4042.218805][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4042.218805][ T253] dst_init+0x84/0x4a0 [ 4042.218805][ T253] dst_alloc+0x97/0x150 [ 4042.218805][ T253] ip6_dst_alloc+0x23/0x90 [ 4042.218805][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4042.218805][ T253] ip6_pol_route+0x56f/0x840 [ 4042.218805][ T253] fib6_rule_lookup+0x334/0x630 [ 4042.218805][ T253] ip6_route_output_flags+0x259/0x480 [ 4042.218805][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4042.218805][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4042.218805][ T253] netlink_rcv_skb+0x130/0x360 [ 4042.218805][ T253] netlink_unicast+0x449/0x710 [ 4042.218805][ T253] netlink_sendmsg+0x723/0xbe0 [ 4042.218805][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4042.218805][ T253] ___sys_sendmsg+0xee/0x170 [ 4042.218805][ T253] __sys_sendmsg+0xcd/0x170 [ 4042.218805][ T253] do_syscall_64+0xc6/0x1e0 [ 4042.218805][ T253] [ 4042.221034][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4042.221034][ T253] netdev_get_by_index+0x5e/0x80 [ 4042.221034][ T253] fib6_nh_init+0x3d8/0x1580 [ 4042.221034][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4042.221034][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4042.221034][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4042.221034][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4042.221034][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4042.221034][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4042.221034][ T253] addrconf_dad_begin+0x310/0x670 [ 4042.221034][ T253] addrconf_dad_work+0x10b/0xab0 [ 4042.221034][ T253] process_one_work+0x84d/0x18a0 [ 4042.221034][ T253] worker_thread+0x587/0xd30 [ 4042.221034][ T253] kthread+0x28a/0x350 [ 4042.221034][ T253] ret_from_fork+0x31/0x70 [ 4042.221034][ T253] ret_from_fork_asm+0x1a/0x30 [ 4042.221034][ T253] [ 4042.223194][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4042.223194][ T253] netdev_get_by_index+0x5e/0x80 [ 4042.223194][ T253] fib6_nh_init+0x3d8/0x1580 [ 4042.223194][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4042.223194][ T253] ip6_route_add+0x1c/0x140 [ 4042.223194][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4042.223194][ T253] inet6_addr_add+0x4f8/0xa40 [ 4042.223194][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4042.223194][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4042.223194][ T253] netlink_rcv_skb+0x130/0x360 [ 4042.223194][ T253] netlink_unicast+0x449/0x710 [ 4042.223194][ T253] netlink_sendmsg+0x723/0xbe0 [ 4042.223194][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4042.223194][ T253] ___sys_sendmsg+0xee/0x170 [ 4042.223194][ T253] __sys_sendmsg+0xcd/0x170 [ 4042.223194][ T253] do_syscall_64+0xc6/0x1e0 [ 4042.223194][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4042.223194][ T253] [ 4042.225450][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4042.225450][ T253] netdev_get_by_index+0x5e/0x80 [ 4042.225450][ T253] fib6_nh_init+0x3d8/0x1580 [ 4042.225450][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4042.225450][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4042.225450][ T253] ipv6_add_addr+0x411/0x2000 [ 4042.225450][ T253] inet6_addr_add+0x30e/0xa40 [ 4042.225450][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4042.225450][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4042.225450][ T253] netlink_rcv_skb+0x130/0x360 [ 4042.225450][ T253] netlink_unicast+0x449/0x710 [ 4042.225450][ T253] netlink_sendmsg+0x723/0xbe0 [ 4042.225450][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4042.225450][ T253] ___sys_sendmsg+0xee/0x170 [ 4042.225450][ T253] __sys_sendmsg+0xcd/0x170 [ 4042.225450][ T253] do_syscall_64+0xc6/0x1e0 [ 4042.225450][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4042.225450][ T253] [ 4042.227715][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4042.227715][ T253] netdev_get_by_index+0x5e/0x80 [ 4042.227715][ T253] fib6_nh_init+0x3d8/0x1580 [ 4042.227715][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4042.227715][ T253] ip6_route_add+0x1c/0x140 [ 4042.227715][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4042.227715][ T253] addrconf_add_dev+0xe2/0x170 [ 4042.227715][ T253] inet6_addr_add+0x12f/0xa40 [ 4042.227715][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4042.227715][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4042.227715][ T253] netlink_rcv_skb+0x130/0x360 [ 4042.227715][ T253] netlink_unicast+0x449/0x710 [ 4042.227715][ T253] netlink_sendmsg+0x723/0xbe0 [ 4042.227715][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4042.227715][ T253] ___sys_sendmsg+0xee/0x170 [ 4042.227715][ T253] __sys_sendmsg+0xcd/0x170 [ 4042.227715][ T253] do_syscall_64+0xc6/0x1e0 [ 4042.227715][ T253] [ 4042.229937][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4042.229937][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4042.229937][ T253] ipv6_find_idev+0x102/0x170 [ 4042.229937][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4042.229937][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4042.229937][ T253] netlink_rcv_skb+0x130/0x360 [ 4042.229937][ T253] netlink_unicast+0x449/0x710 [ 4042.229937][ T253] netlink_sendmsg+0x723/0xbe0 [ 4042.229937][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4042.229937][ T253] ___sys_sendmsg+0xee/0x170 [ 4042.229937][ T253] __sys_sendmsg+0xcd/0x170 [ 4042.229937][ T253] do_syscall_64+0xc6/0x1e0 [ 4042.229937][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4042.229937][ T253] [ 4042.231693][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4042.231693][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4042.231693][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4042.231693][ T253] ipv6_find_idev+0x102/0x170 [ 4042.231693][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4042.231693][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4042.231693][ T253] netlink_rcv_skb+0x130/0x360 [ 4042.231693][ T253] netlink_unicast+0x449/0x710 [ 4042.231693][ T253] netlink_sendmsg+0x723/0xbe0 [ 4042.231693][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4042.231693][ T253] ___sys_sendmsg+0xee/0x170 [ 4042.231693][ T253] __sys_sendmsg+0xcd/0x170 [ 4042.231693][ T253] do_syscall_64+0xc6/0x1e0 [ 4042.231693][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4042.231693][ T253] [ 4052.474304][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4052.474819][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4052.474819][ T253] dst_init+0x84/0x4a0 [ 4052.474819][ T253] dst_alloc+0x97/0x150 [ 4052.474819][ T253] ip6_dst_alloc+0x23/0x90 [ 4052.474819][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4052.474819][ T253] ip6_pol_route+0x56f/0x840 [ 4052.474819][ T253] fib6_rule_lookup+0x334/0x630 [ 4052.474819][ T253] ip6_route_output_flags+0x259/0x480 [ 4052.474819][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4052.474819][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4052.474819][ T253] netlink_rcv_skb+0x130/0x360 [ 4052.474819][ T253] netlink_unicast+0x449/0x710 [ 4052.474819][ T253] netlink_sendmsg+0x723/0xbe0 [ 4052.474819][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4052.474819][ T253] ___sys_sendmsg+0xee/0x170 [ 4052.474819][ T253] __sys_sendmsg+0xcd/0x170 [ 4052.474819][ T253] do_syscall_64+0xc6/0x1e0 [ 4052.474819][ T253] [ 4052.477033][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4052.477033][ T253] netdev_get_by_index+0x5e/0x80 [ 4052.477033][ T253] fib6_nh_init+0x3d8/0x1580 [ 4052.477033][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4052.477033][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4052.477033][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4052.477033][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4052.477033][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4052.477033][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4052.477033][ T253] addrconf_dad_begin+0x310/0x670 [ 4052.477033][ T253] addrconf_dad_work+0x10b/0xab0 [ 4052.477033][ T253] process_one_work+0x84d/0x18a0 [ 4052.477033][ T253] worker_thread+0x587/0xd30 [ 4052.477033][ T253] kthread+0x28a/0x350 [ 4052.477033][ T253] ret_from_fork+0x31/0x70 [ 4052.477033][ T253] ret_from_fork_asm+0x1a/0x30 [ 4052.477033][ T253] [ 4052.479188][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4052.479188][ T253] netdev_get_by_index+0x5e/0x80 [ 4052.479188][ T253] fib6_nh_init+0x3d8/0x1580 [ 4052.479188][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4052.479188][ T253] ip6_route_add+0x1c/0x140 [ 4052.479188][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4052.479188][ T253] inet6_addr_add+0x4f8/0xa40 [ 4052.479188][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4052.479188][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4052.479188][ T253] netlink_rcv_skb+0x130/0x360 [ 4052.479188][ T253] netlink_unicast+0x449/0x710 [ 4052.479188][ T253] netlink_sendmsg+0x723/0xbe0 [ 4052.479188][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4052.479188][ T253] ___sys_sendmsg+0xee/0x170 [ 4052.479188][ T253] __sys_sendmsg+0xcd/0x170 [ 4052.479188][ T253] do_syscall_64+0xc6/0x1e0 [ 4052.479188][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4052.479188][ T253] [ 4052.481467][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4052.481467][ T253] netdev_get_by_index+0x5e/0x80 [ 4052.481467][ T253] fib6_nh_init+0x3d8/0x1580 [ 4052.481467][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4052.481467][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4052.481467][ T253] ipv6_add_addr+0x411/0x2000 [ 4052.481467][ T253] inet6_addr_add+0x30e/0xa40 [ 4052.481467][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4052.481467][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4052.481467][ T253] netlink_rcv_skb+0x130/0x360 [ 4052.481467][ T253] netlink_unicast+0x449/0x710 [ 4052.481467][ T253] netlink_sendmsg+0x723/0xbe0 [ 4052.481467][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4052.481467][ T253] ___sys_sendmsg+0xee/0x170 [ 4052.481467][ T253] __sys_sendmsg+0xcd/0x170 [ 4052.481467][ T253] do_syscall_64+0xc6/0x1e0 [ 4052.481467][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4052.481467][ T253] [ 4052.483726][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4052.483726][ T253] netdev_get_by_index+0x5e/0x80 [ 4052.483726][ T253] fib6_nh_init+0x3d8/0x1580 [ 4052.483726][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4052.483726][ T253] ip6_route_add+0x1c/0x140 [ 4052.483726][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4052.483726][ T253] addrconf_add_dev+0xe2/0x170 [ 4052.483726][ T253] inet6_addr_add+0x12f/0xa40 [ 4052.483726][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4052.483726][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4052.483726][ T253] netlink_rcv_skb+0x130/0x360 [ 4052.483726][ T253] netlink_unicast+0x449/0x710 [ 4052.483726][ T253] netlink_sendmsg+0x723/0xbe0 [ 4052.483726][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4052.483726][ T253] ___sys_sendmsg+0xee/0x170 [ 4052.483726][ T253] __sys_sendmsg+0xcd/0x170 [ 4052.483726][ T253] do_syscall_64+0xc6/0x1e0 [ 4052.483726][ T253] [ 4052.485960][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4052.485960][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4052.485960][ T253] ipv6_find_idev+0x102/0x170 [ 4052.485960][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4052.485960][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4052.485960][ T253] netlink_rcv_skb+0x130/0x360 [ 4052.485960][ T253] netlink_unicast+0x449/0x710 [ 4052.485960][ T253] netlink_sendmsg+0x723/0xbe0 [ 4052.485960][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4052.485960][ T253] ___sys_sendmsg+0xee/0x170 [ 4052.485960][ T253] __sys_sendmsg+0xcd/0x170 [ 4052.485960][ T253] do_syscall_64+0xc6/0x1e0 [ 4052.485960][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4052.485960][ T253] [ 4052.487694][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4052.487694][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4052.487694][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4052.487694][ T253] ipv6_find_idev+0x102/0x170 [ 4052.487694][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4052.487694][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4052.487694][ T253] netlink_rcv_skb+0x130/0x360 [ 4052.487694][ T253] netlink_unicast+0x449/0x710 [ 4052.487694][ T253] netlink_sendmsg+0x723/0xbe0 [ 4052.487694][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4052.487694][ T253] ___sys_sendmsg+0xee/0x170 [ 4052.487694][ T253] __sys_sendmsg+0xcd/0x170 [ 4052.487694][ T253] do_syscall_64+0xc6/0x1e0 [ 4052.487694][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4052.487694][ T253] [ 4062.730329][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4062.730843][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4062.730843][ T253] dst_init+0x84/0x4a0 [ 4062.730843][ T253] dst_alloc+0x97/0x150 [ 4062.730843][ T253] ip6_dst_alloc+0x23/0x90 [ 4062.730843][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4062.730843][ T253] ip6_pol_route+0x56f/0x840 [ 4062.730843][ T253] fib6_rule_lookup+0x334/0x630 [ 4062.730843][ T253] ip6_route_output_flags+0x259/0x480 [ 4062.730843][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4062.730843][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4062.730843][ T253] netlink_rcv_skb+0x130/0x360 [ 4062.730843][ T253] netlink_unicast+0x449/0x710 [ 4062.730843][ T253] netlink_sendmsg+0x723/0xbe0 [ 4062.730843][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4062.730843][ T253] ___sys_sendmsg+0xee/0x170 [ 4062.730843][ T253] __sys_sendmsg+0xcd/0x170 [ 4062.730843][ T253] do_syscall_64+0xc6/0x1e0 [ 4062.730843][ T253] [ 4062.733062][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4062.733062][ T253] netdev_get_by_index+0x5e/0x80 [ 4062.733062][ T253] fib6_nh_init+0x3d8/0x1580 [ 4062.733062][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4062.733062][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4062.733062][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4062.733062][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4062.733062][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4062.733062][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4062.733062][ T253] addrconf_dad_begin+0x310/0x670 [ 4062.733062][ T253] addrconf_dad_work+0x10b/0xab0 [ 4062.733062][ T253] process_one_work+0x84d/0x18a0 [ 4062.733062][ T253] worker_thread+0x587/0xd30 [ 4062.733062][ T253] kthread+0x28a/0x350 [ 4062.733062][ T253] ret_from_fork+0x31/0x70 [ 4062.733062][ T253] ret_from_fork_asm+0x1a/0x30 [ 4062.733062][ T253] [ 4062.735221][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4062.735221][ T253] netdev_get_by_index+0x5e/0x80 [ 4062.735221][ T253] fib6_nh_init+0x3d8/0x1580 [ 4062.735221][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4062.735221][ T253] ip6_route_add+0x1c/0x140 [ 4062.735221][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4062.735221][ T253] inet6_addr_add+0x4f8/0xa40 [ 4062.735221][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4062.735221][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4062.735221][ T253] netlink_rcv_skb+0x130/0x360 [ 4062.735221][ T253] netlink_unicast+0x449/0x710 [ 4062.735221][ T253] netlink_sendmsg+0x723/0xbe0 [ 4062.735221][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4062.735221][ T253] ___sys_sendmsg+0xee/0x170 [ 4062.735221][ T253] __sys_sendmsg+0xcd/0x170 [ 4062.735221][ T253] do_syscall_64+0xc6/0x1e0 [ 4062.735221][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4062.735221][ T253] [ 4062.737481][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4062.737481][ T253] netdev_get_by_index+0x5e/0x80 [ 4062.737481][ T253] fib6_nh_init+0x3d8/0x1580 [ 4062.737481][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4062.737481][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4062.737481][ T253] ipv6_add_addr+0x411/0x2000 [ 4062.737481][ T253] inet6_addr_add+0x30e/0xa40 [ 4062.737481][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4062.737481][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4062.737481][ T253] netlink_rcv_skb+0x130/0x360 [ 4062.737481][ T253] netlink_unicast+0x449/0x710 [ 4062.737481][ T253] netlink_sendmsg+0x723/0xbe0 [ 4062.737481][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4062.737481][ T253] ___sys_sendmsg+0xee/0x170 [ 4062.737481][ T253] __sys_sendmsg+0xcd/0x170 [ 4062.737481][ T253] do_syscall_64+0xc6/0x1e0 [ 4062.737481][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4062.737481][ T253] [ 4062.740267][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4062.740267][ T253] netdev_get_by_index+0x5e/0x80 [ 4062.740267][ T253] fib6_nh_init+0x3d8/0x1580 [ 4062.740267][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4062.740267][ T253] ip6_route_add+0x1c/0x140 [ 4062.740267][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4062.740267][ T253] addrconf_add_dev+0xe2/0x170 [ 4062.740267][ T253] inet6_addr_add+0x12f/0xa40 [ 4062.740267][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4062.740267][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4062.740267][ T253] netlink_rcv_skb+0x130/0x360 [ 4062.740267][ T253] netlink_unicast+0x449/0x710 [ 4062.740267][ T253] netlink_sendmsg+0x723/0xbe0 [ 4062.740267][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4062.740267][ T253] ___sys_sendmsg+0xee/0x170 [ 4062.740267][ T253] __sys_sendmsg+0xcd/0x170 [ 4062.740267][ T253] do_syscall_64+0xc6/0x1e0 [ 4062.740267][ T253] [ 4062.742494][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4062.742494][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4062.742494][ T253] ipv6_find_idev+0x102/0x170 [ 4062.742494][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4062.742494][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4062.742494][ T253] netlink_rcv_skb+0x130/0x360 [ 4062.742494][ T253] netlink_unicast+0x449/0x710 [ 4062.742494][ T253] netlink_sendmsg+0x723/0xbe0 [ 4062.742494][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4062.742494][ T253] ___sys_sendmsg+0xee/0x170 [ 4062.742494][ T253] __sys_sendmsg+0xcd/0x170 [ 4062.742494][ T253] do_syscall_64+0xc6/0x1e0 [ 4062.742494][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4062.742494][ T253] [ 4062.744234][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4062.744234][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4062.744234][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4062.744234][ T253] ipv6_find_idev+0x102/0x170 [ 4062.744234][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4062.744234][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4062.744234][ T253] netlink_rcv_skb+0x130/0x360 [ 4062.744234][ T253] netlink_unicast+0x449/0x710 [ 4062.744234][ T253] netlink_sendmsg+0x723/0xbe0 [ 4062.744234][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4062.744234][ T253] ___sys_sendmsg+0xee/0x170 [ 4062.744234][ T253] __sys_sendmsg+0xcd/0x170 [ 4062.744234][ T253] do_syscall_64+0xc6/0x1e0 [ 4062.744234][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4062.744234][ T253] [ 4072.890243][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4072.890738][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4072.890738][ T253] dst_init+0x84/0x4a0 [ 4072.890738][ T253] dst_alloc+0x97/0x150 [ 4072.890738][ T253] ip6_dst_alloc+0x23/0x90 [ 4072.890738][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4072.890738][ T253] ip6_pol_route+0x56f/0x840 [ 4072.890738][ T253] fib6_rule_lookup+0x334/0x630 [ 4072.890738][ T253] ip6_route_output_flags+0x259/0x480 [ 4072.890738][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4072.890738][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4072.890738][ T253] netlink_rcv_skb+0x130/0x360 [ 4072.890738][ T253] netlink_unicast+0x449/0x710 [ 4072.890738][ T253] netlink_sendmsg+0x723/0xbe0 [ 4072.890738][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4072.890738][ T253] ___sys_sendmsg+0xee/0x170 [ 4072.890738][ T253] __sys_sendmsg+0xcd/0x170 [ 4072.890738][ T253] do_syscall_64+0xc6/0x1e0 [ 4072.890738][ T253] [ 4072.892928][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4072.892928][ T253] netdev_get_by_index+0x5e/0x80 [ 4072.892928][ T253] fib6_nh_init+0x3d8/0x1580 [ 4072.892928][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4072.892928][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4072.892928][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4072.892928][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4072.892928][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4072.892928][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4072.892928][ T253] addrconf_dad_begin+0x310/0x670 [ 4072.892928][ T253] addrconf_dad_work+0x10b/0xab0 [ 4072.892928][ T253] process_one_work+0x84d/0x18a0 [ 4072.892928][ T253] worker_thread+0x587/0xd30 [ 4072.892928][ T253] kthread+0x28a/0x350 [ 4072.892928][ T253] ret_from_fork+0x31/0x70 [ 4072.892928][ T253] ret_from_fork_asm+0x1a/0x30 [ 4072.892928][ T253] [ 4072.895067][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4072.895067][ T253] netdev_get_by_index+0x5e/0x80 [ 4072.895067][ T253] fib6_nh_init+0x3d8/0x1580 [ 4072.895067][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4072.895067][ T253] ip6_route_add+0x1c/0x140 [ 4072.895067][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4072.895067][ T253] inet6_addr_add+0x4f8/0xa40 [ 4072.895067][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4072.895067][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4072.895067][ T253] netlink_rcv_skb+0x130/0x360 [ 4072.895067][ T253] netlink_unicast+0x449/0x710 [ 4072.895067][ T253] netlink_sendmsg+0x723/0xbe0 [ 4072.895067][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4072.895067][ T253] ___sys_sendmsg+0xee/0x170 [ 4072.895067][ T253] __sys_sendmsg+0xcd/0x170 [ 4072.895067][ T253] do_syscall_64+0xc6/0x1e0 [ 4072.895067][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4072.895067][ T253] [ 4072.897299][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4072.897299][ T253] netdev_get_by_index+0x5e/0x80 [ 4072.897299][ T253] fib6_nh_init+0x3d8/0x1580 [ 4072.897299][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4072.897299][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4072.897299][ T253] ipv6_add_addr+0x411/0x2000 [ 4072.897299][ T253] inet6_addr_add+0x30e/0xa40 [ 4072.897299][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4072.897299][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4072.897299][ T253] netlink_rcv_skb+0x130/0x360 [ 4072.897299][ T253] netlink_unicast+0x449/0x710 [ 4072.897299][ T253] netlink_sendmsg+0x723/0xbe0 [ 4072.897299][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4072.897299][ T253] ___sys_sendmsg+0xee/0x170 [ 4072.897299][ T253] __sys_sendmsg+0xcd/0x170 [ 4072.897299][ T253] do_syscall_64+0xc6/0x1e0 [ 4072.897299][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4072.897299][ T253] [ 4072.899545][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4072.899545][ T253] netdev_get_by_index+0x5e/0x80 [ 4072.899545][ T253] fib6_nh_init+0x3d8/0x1580 [ 4072.899545][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4072.899545][ T253] ip6_route_add+0x1c/0x140 [ 4072.899545][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4072.899545][ T253] addrconf_add_dev+0xe2/0x170 [ 4072.899545][ T253] inet6_addr_add+0x12f/0xa40 [ 4072.899545][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4072.899545][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4072.899545][ T253] netlink_rcv_skb+0x130/0x360 [ 4072.899545][ T253] netlink_unicast+0x449/0x710 [ 4072.899545][ T253] netlink_sendmsg+0x723/0xbe0 [ 4072.899545][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4072.899545][ T253] ___sys_sendmsg+0xee/0x170 [ 4072.899545][ T253] __sys_sendmsg+0xcd/0x170 [ 4072.899545][ T253] do_syscall_64+0xc6/0x1e0 [ 4072.899545][ T253] [ 4072.901749][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4072.901749][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4072.901749][ T253] ipv6_find_idev+0x102/0x170 [ 4072.901749][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4072.901749][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4072.901749][ T253] netlink_rcv_skb+0x130/0x360 [ 4072.901749][ T253] netlink_unicast+0x449/0x710 [ 4072.901749][ T253] netlink_sendmsg+0x723/0xbe0 [ 4072.901749][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4072.901749][ T253] ___sys_sendmsg+0xee/0x170 [ 4072.901749][ T253] __sys_sendmsg+0xcd/0x170 [ 4072.901749][ T253] do_syscall_64+0xc6/0x1e0 [ 4072.901749][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4072.901749][ T253] [ 4072.903468][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4072.903468][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4072.903468][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4072.903468][ T253] ipv6_find_idev+0x102/0x170 [ 4072.903468][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4072.903468][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4072.903468][ T253] netlink_rcv_skb+0x130/0x360 [ 4072.903468][ T253] netlink_unicast+0x449/0x710 [ 4072.903468][ T253] netlink_sendmsg+0x723/0xbe0 [ 4072.903468][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4072.903468][ T253] ___sys_sendmsg+0xee/0x170 [ 4072.903468][ T253] __sys_sendmsg+0xcd/0x170 [ 4072.903468][ T253] do_syscall_64+0xc6/0x1e0 [ 4072.903468][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4072.903468][ T253] [ 4083.154332][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4083.154789][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4083.154789][ T253] dst_init+0x84/0x4a0 [ 4083.154789][ T253] dst_alloc+0x97/0x150 [ 4083.154789][ T253] ip6_dst_alloc+0x23/0x90 [ 4083.154789][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4083.154789][ T253] ip6_pol_route+0x56f/0x840 [ 4083.154789][ T253] fib6_rule_lookup+0x334/0x630 [ 4083.154789][ T253] ip6_route_output_flags+0x259/0x480 [ 4083.154789][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4083.154789][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4083.154789][ T253] netlink_rcv_skb+0x130/0x360 [ 4083.154789][ T253] netlink_unicast+0x449/0x710 [ 4083.154789][ T253] netlink_sendmsg+0x723/0xbe0 [ 4083.154789][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4083.154789][ T253] ___sys_sendmsg+0xee/0x170 [ 4083.154789][ T253] __sys_sendmsg+0xcd/0x170 [ 4083.154789][ T253] do_syscall_64+0xc6/0x1e0 [ 4083.154789][ T253] [ 4083.156986][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4083.156986][ T253] netdev_get_by_index+0x5e/0x80 [ 4083.156986][ T253] fib6_nh_init+0x3d8/0x1580 [ 4083.156986][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4083.156986][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4083.156986][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4083.156986][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4083.156986][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4083.156986][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4083.156986][ T253] addrconf_dad_begin+0x310/0x670 [ 4083.156986][ T253] addrconf_dad_work+0x10b/0xab0 [ 4083.156986][ T253] process_one_work+0x84d/0x18a0 [ 4083.156986][ T253] worker_thread+0x587/0xd30 [ 4083.156986][ T253] kthread+0x28a/0x350 [ 4083.156986][ T253] ret_from_fork+0x31/0x70 [ 4083.156986][ T253] ret_from_fork_asm+0x1a/0x30 [ 4083.156986][ T253] [ 4083.159172][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4083.159172][ T253] netdev_get_by_index+0x5e/0x80 [ 4083.159172][ T253] fib6_nh_init+0x3d8/0x1580 [ 4083.159172][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4083.159172][ T253] ip6_route_add+0x1c/0x140 [ 4083.159172][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4083.159172][ T253] inet6_addr_add+0x4f8/0xa40 [ 4083.159172][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4083.159172][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4083.159172][ T253] netlink_rcv_skb+0x130/0x360 [ 4083.159172][ T253] netlink_unicast+0x449/0x710 [ 4083.159172][ T253] netlink_sendmsg+0x723/0xbe0 [ 4083.159172][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4083.159172][ T253] ___sys_sendmsg+0xee/0x170 [ 4083.159172][ T253] __sys_sendmsg+0xcd/0x170 [ 4083.159172][ T253] do_syscall_64+0xc6/0x1e0 [ 4083.159172][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4083.159172][ T253] [ 4083.161435][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4083.161435][ T253] netdev_get_by_index+0x5e/0x80 [ 4083.161435][ T253] fib6_nh_init+0x3d8/0x1580 [ 4083.161435][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4083.161435][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4083.161435][ T253] ipv6_add_addr+0x411/0x2000 [ 4083.161435][ T253] inet6_addr_add+0x30e/0xa40 [ 4083.161435][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4083.161435][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4083.161435][ T253] netlink_rcv_skb+0x130/0x360 [ 4083.161435][ T253] netlink_unicast+0x449/0x710 [ 4083.161435][ T253] netlink_sendmsg+0x723/0xbe0 [ 4083.161435][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4083.161435][ T253] ___sys_sendmsg+0xee/0x170 [ 4083.161435][ T253] __sys_sendmsg+0xcd/0x170 [ 4083.161435][ T253] do_syscall_64+0xc6/0x1e0 [ 4083.161435][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4083.161435][ T253] [ 4083.163696][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4083.163696][ T253] netdev_get_by_index+0x5e/0x80 [ 4083.163696][ T253] fib6_nh_init+0x3d8/0x1580 [ 4083.163696][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4083.163696][ T253] ip6_route_add+0x1c/0x140 [ 4083.163696][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4083.163696][ T253] addrconf_add_dev+0xe2/0x170 [ 4083.163696][ T253] inet6_addr_add+0x12f/0xa40 [ 4083.163696][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4083.163696][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4083.163696][ T253] netlink_rcv_skb+0x130/0x360 [ 4083.163696][ T253] netlink_unicast+0x449/0x710 [ 4083.163696][ T253] netlink_sendmsg+0x723/0xbe0 [ 4083.163696][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4083.163696][ T253] ___sys_sendmsg+0xee/0x170 [ 4083.163696][ T253] __sys_sendmsg+0xcd/0x170 [ 4083.163696][ T253] do_syscall_64+0xc6/0x1e0 [ 4083.163696][ T253] [ 4083.165909][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4083.165909][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4083.165909][ T253] ipv6_find_idev+0x102/0x170 [ 4083.165909][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4083.165909][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4083.165909][ T253] netlink_rcv_skb+0x130/0x360 [ 4083.165909][ T253] netlink_unicast+0x449/0x710 [ 4083.165909][ T253] netlink_sendmsg+0x723/0xbe0 [ 4083.165909][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4083.165909][ T253] ___sys_sendmsg+0xee/0x170 [ 4083.165909][ T253] __sys_sendmsg+0xcd/0x170 [ 4083.165909][ T253] do_syscall_64+0xc6/0x1e0 [ 4083.165909][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4083.165909][ T253] [ 4083.167656][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4083.167656][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4083.167656][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4083.167656][ T253] ipv6_find_idev+0x102/0x170 [ 4083.167656][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4083.167656][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4083.167656][ T253] netlink_rcv_skb+0x130/0x360 [ 4083.167656][ T253] netlink_unicast+0x449/0x710 [ 4083.167656][ T253] netlink_sendmsg+0x723/0xbe0 [ 4083.167656][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4083.167656][ T253] ___sys_sendmsg+0xee/0x170 [ 4083.167656][ T253] __sys_sendmsg+0xcd/0x170 [ 4083.167656][ T253] do_syscall_64+0xc6/0x1e0 [ 4083.167656][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4083.167656][ T253] [ 4093.202256][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4093.202733][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4093.202733][ T253] dst_init+0x84/0x4a0 [ 4093.202733][ T253] dst_alloc+0x97/0x150 [ 4093.202733][ T253] ip6_dst_alloc+0x23/0x90 [ 4093.202733][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4093.202733][ T253] ip6_pol_route+0x56f/0x840 [ 4093.202733][ T253] fib6_rule_lookup+0x334/0x630 [ 4093.202733][ T253] ip6_route_output_flags+0x259/0x480 [ 4093.202733][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4093.202733][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4093.202733][ T253] netlink_rcv_skb+0x130/0x360 [ 4093.202733][ T253] netlink_unicast+0x449/0x710 [ 4093.202733][ T253] netlink_sendmsg+0x723/0xbe0 [ 4093.202733][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4093.202733][ T253] ___sys_sendmsg+0xee/0x170 [ 4093.202733][ T253] __sys_sendmsg+0xcd/0x170 [ 4093.202733][ T253] do_syscall_64+0xc6/0x1e0 [ 4093.202733][ T253] [ 4093.204923][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4093.204923][ T253] netdev_get_by_index+0x5e/0x80 [ 4093.204923][ T253] fib6_nh_init+0x3d8/0x1580 [ 4093.204923][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4093.204923][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4093.204923][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4093.204923][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4093.204923][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4093.204923][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4093.204923][ T253] addrconf_dad_begin+0x310/0x670 [ 4093.204923][ T253] addrconf_dad_work+0x10b/0xab0 [ 4093.204923][ T253] process_one_work+0x84d/0x18a0 [ 4093.204923][ T253] worker_thread+0x587/0xd30 [ 4093.204923][ T253] kthread+0x28a/0x350 [ 4093.204923][ T253] ret_from_fork+0x31/0x70 [ 4093.204923][ T253] ret_from_fork_asm+0x1a/0x30 [ 4093.204923][ T253] [ 4093.207048][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4093.207048][ T253] netdev_get_by_index+0x5e/0x80 [ 4093.207048][ T253] fib6_nh_init+0x3d8/0x1580 [ 4093.207048][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4093.207048][ T253] ip6_route_add+0x1c/0x140 [ 4093.207048][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4093.207048][ T253] inet6_addr_add+0x4f8/0xa40 [ 4093.207048][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4093.207048][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4093.207048][ T253] netlink_rcv_skb+0x130/0x360 [ 4093.207048][ T253] netlink_unicast+0x449/0x710 [ 4093.207048][ T253] netlink_sendmsg+0x723/0xbe0 [ 4093.207048][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4093.207048][ T253] ___sys_sendmsg+0xee/0x170 [ 4093.207048][ T253] __sys_sendmsg+0xcd/0x170 [ 4093.207048][ T253] do_syscall_64+0xc6/0x1e0 [ 4093.207048][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4093.207048][ T253] [ 4093.209289][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4093.209289][ T253] netdev_get_by_index+0x5e/0x80 [ 4093.209289][ T253] fib6_nh_init+0x3d8/0x1580 [ 4093.209289][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4093.209289][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4093.209289][ T253] ipv6_add_addr+0x411/0x2000 [ 4093.209289][ T253] inet6_addr_add+0x30e/0xa40 [ 4093.209289][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4093.209289][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4093.209289][ T253] netlink_rcv_skb+0x130/0x360 [ 4093.209289][ T253] netlink_unicast+0x449/0x710 [ 4093.209289][ T253] netlink_sendmsg+0x723/0xbe0 [ 4093.209289][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4093.209289][ T253] ___sys_sendmsg+0xee/0x170 [ 4093.209289][ T253] __sys_sendmsg+0xcd/0x170 [ 4093.209289][ T253] do_syscall_64+0xc6/0x1e0 [ 4093.209289][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4093.209289][ T253] [ 4093.211533][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4093.211533][ T253] netdev_get_by_index+0x5e/0x80 [ 4093.211533][ T253] fib6_nh_init+0x3d8/0x1580 [ 4093.211533][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4093.211533][ T253] ip6_route_add+0x1c/0x140 [ 4093.211533][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4093.211533][ T253] addrconf_add_dev+0xe2/0x170 [ 4093.211533][ T253] inet6_addr_add+0x12f/0xa40 [ 4093.211533][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4093.211533][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4093.211533][ T253] netlink_rcv_skb+0x130/0x360 [ 4093.211533][ T253] netlink_unicast+0x449/0x710 [ 4093.211533][ T253] netlink_sendmsg+0x723/0xbe0 [ 4093.211533][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4093.211533][ T253] ___sys_sendmsg+0xee/0x170 [ 4093.211533][ T253] __sys_sendmsg+0xcd/0x170 [ 4093.211533][ T253] do_syscall_64+0xc6/0x1e0 [ 4093.211533][ T253] [ 4093.213729][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4093.213729][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4093.213729][ T253] ipv6_find_idev+0x102/0x170 [ 4093.213729][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4093.213729][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4093.213729][ T253] netlink_rcv_skb+0x130/0x360 [ 4093.213729][ T253] netlink_unicast+0x449/0x710 [ 4093.213729][ T253] netlink_sendmsg+0x723/0xbe0 [ 4093.213729][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4093.213729][ T253] ___sys_sendmsg+0xee/0x170 [ 4093.213729][ T253] __sys_sendmsg+0xcd/0x170 [ 4093.213729][ T253] do_syscall_64+0xc6/0x1e0 [ 4093.213729][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4093.213729][ T253] [ 4093.215449][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4093.215449][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4093.215449][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4093.215449][ T253] ipv6_find_idev+0x102/0x170 [ 4093.215449][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4093.215449][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4093.215449][ T253] netlink_rcv_skb+0x130/0x360 [ 4093.215449][ T253] netlink_unicast+0x449/0x710 [ 4093.215449][ T253] netlink_sendmsg+0x723/0xbe0 [ 4093.215449][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4093.215449][ T253] ___sys_sendmsg+0xee/0x170 [ 4093.215449][ T253] __sys_sendmsg+0xcd/0x170 [ 4093.215449][ T253] do_syscall_64+0xc6/0x1e0 [ 4093.215449][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4093.215449][ T253] [ 4103.242254][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4103.242734][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4103.242734][ T253] dst_init+0x84/0x4a0 [ 4103.242734][ T253] dst_alloc+0x97/0x150 [ 4103.242734][ T253] ip6_dst_alloc+0x23/0x90 [ 4103.242734][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4103.242734][ T253] ip6_pol_route+0x56f/0x840 [ 4103.242734][ T253] fib6_rule_lookup+0x334/0x630 [ 4103.242734][ T253] ip6_route_output_flags+0x259/0x480 [ 4103.242734][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4103.242734][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4103.242734][ T253] netlink_rcv_skb+0x130/0x360 [ 4103.242734][ T253] netlink_unicast+0x449/0x710 [ 4103.242734][ T253] netlink_sendmsg+0x723/0xbe0 [ 4103.242734][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4103.242734][ T253] ___sys_sendmsg+0xee/0x170 [ 4103.242734][ T253] __sys_sendmsg+0xcd/0x170 [ 4103.242734][ T253] do_syscall_64+0xc6/0x1e0 [ 4103.242734][ T253] [ 4103.244938][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4103.244938][ T253] netdev_get_by_index+0x5e/0x80 [ 4103.244938][ T253] fib6_nh_init+0x3d8/0x1580 [ 4103.244938][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4103.244938][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4103.244938][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4103.244938][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4103.244938][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4103.244938][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4103.244938][ T253] addrconf_dad_begin+0x310/0x670 [ 4103.244938][ T253] addrconf_dad_work+0x10b/0xab0 [ 4103.244938][ T253] process_one_work+0x84d/0x18a0 [ 4103.244938][ T253] worker_thread+0x587/0xd30 [ 4103.244938][ T253] kthread+0x28a/0x350 [ 4103.244938][ T253] ret_from_fork+0x31/0x70 [ 4103.244938][ T253] ret_from_fork_asm+0x1a/0x30 [ 4103.244938][ T253] [ 4103.247114][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4103.247114][ T253] netdev_get_by_index+0x5e/0x80 [ 4103.247114][ T253] fib6_nh_init+0x3d8/0x1580 [ 4103.247114][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4103.247114][ T253] ip6_route_add+0x1c/0x140 [ 4103.247114][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4103.247114][ T253] inet6_addr_add+0x4f8/0xa40 [ 4103.247114][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4103.247114][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4103.247114][ T253] netlink_rcv_skb+0x130/0x360 [ 4103.247114][ T253] netlink_unicast+0x449/0x710 [ 4103.247114][ T253] netlink_sendmsg+0x723/0xbe0 [ 4103.247114][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4103.247114][ T253] ___sys_sendmsg+0xee/0x170 [ 4103.247114][ T253] __sys_sendmsg+0xcd/0x170 [ 4103.247114][ T253] do_syscall_64+0xc6/0x1e0 [ 4103.247114][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4103.247114][ T253] [ 4103.249348][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4103.249348][ T253] netdev_get_by_index+0x5e/0x80 [ 4103.249348][ T253] fib6_nh_init+0x3d8/0x1580 [ 4103.249348][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4103.249348][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4103.249348][ T253] ipv6_add_addr+0x411/0x2000 [ 4103.249348][ T253] inet6_addr_add+0x30e/0xa40 [ 4103.249348][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4103.249348][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4103.249348][ T253] netlink_rcv_skb+0x130/0x360 [ 4103.249348][ T253] netlink_unicast+0x449/0x710 [ 4103.249348][ T253] netlink_sendmsg+0x723/0xbe0 [ 4103.249348][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4103.249348][ T253] ___sys_sendmsg+0xee/0x170 [ 4103.249348][ T253] __sys_sendmsg+0xcd/0x170 [ 4103.249348][ T253] do_syscall_64+0xc6/0x1e0 [ 4103.249348][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4103.249348][ T253] [ 4103.251610][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4103.251610][ T253] netdev_get_by_index+0x5e/0x80 [ 4103.251610][ T253] fib6_nh_init+0x3d8/0x1580 [ 4103.251610][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4103.251610][ T253] ip6_route_add+0x1c/0x140 [ 4103.251610][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4103.251610][ T253] addrconf_add_dev+0xe2/0x170 [ 4103.251610][ T253] inet6_addr_add+0x12f/0xa40 [ 4103.251610][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4103.251610][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4103.251610][ T253] netlink_rcv_skb+0x130/0x360 [ 4103.251610][ T253] netlink_unicast+0x449/0x710 [ 4103.251610][ T253] netlink_sendmsg+0x723/0xbe0 [ 4103.251610][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4103.251610][ T253] ___sys_sendmsg+0xee/0x170 [ 4103.251610][ T253] __sys_sendmsg+0xcd/0x170 [ 4103.251610][ T253] do_syscall_64+0xc6/0x1e0 [ 4103.251610][ T253] [ 4103.253823][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4103.253823][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4103.253823][ T253] ipv6_find_idev+0x102/0x170 [ 4103.253823][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4103.253823][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4103.253823][ T253] netlink_rcv_skb+0x130/0x360 [ 4103.253823][ T253] netlink_unicast+0x449/0x710 [ 4103.253823][ T253] netlink_sendmsg+0x723/0xbe0 [ 4103.253823][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4103.253823][ T253] ___sys_sendmsg+0xee/0x170 [ 4103.253823][ T253] __sys_sendmsg+0xcd/0x170 [ 4103.253823][ T253] do_syscall_64+0xc6/0x1e0 [ 4103.253823][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4103.253823][ T253] [ 4103.255545][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4103.255545][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4103.255545][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4103.255545][ T253] ipv6_find_idev+0x102/0x170 [ 4103.255545][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4103.255545][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4103.255545][ T253] netlink_rcv_skb+0x130/0x360 [ 4103.255545][ T253] netlink_unicast+0x449/0x710 [ 4103.255545][ T253] netlink_sendmsg+0x723/0xbe0 [ 4103.255545][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4103.255545][ T253] ___sys_sendmsg+0xee/0x170 [ 4103.255545][ T253] __sys_sendmsg+0xcd/0x170 [ 4103.255545][ T253] do_syscall_64+0xc6/0x1e0 [ 4103.255545][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4103.255545][ T253] [ 4113.498291][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4113.498782][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4113.498782][ T253] dst_init+0x84/0x4a0 [ 4113.498782][ T253] dst_alloc+0x97/0x150 [ 4113.498782][ T253] ip6_dst_alloc+0x23/0x90 [ 4113.498782][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4113.498782][ T253] ip6_pol_route+0x56f/0x840 [ 4113.498782][ T253] fib6_rule_lookup+0x334/0x630 [ 4113.498782][ T253] ip6_route_output_flags+0x259/0x480 [ 4113.498782][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4113.498782][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4113.498782][ T253] netlink_rcv_skb+0x130/0x360 [ 4113.498782][ T253] netlink_unicast+0x449/0x710 [ 4113.498782][ T253] netlink_sendmsg+0x723/0xbe0 [ 4113.498782][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4113.498782][ T253] ___sys_sendmsg+0xee/0x170 [ 4113.498782][ T253] __sys_sendmsg+0xcd/0x170 [ 4113.498782][ T253] do_syscall_64+0xc6/0x1e0 [ 4113.498782][ T253] [ 4113.501155][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4113.501155][ T253] netdev_get_by_index+0x5e/0x80 [ 4113.501155][ T253] fib6_nh_init+0x3d8/0x1580 [ 4113.501155][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4113.501155][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4113.501155][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4113.501155][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4113.501155][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4113.501155][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4113.501155][ T253] addrconf_dad_begin+0x310/0x670 [ 4113.501155][ T253] addrconf_dad_work+0x10b/0xab0 [ 4113.501155][ T253] process_one_work+0x84d/0x18a0 [ 4113.501155][ T253] worker_thread+0x587/0xd30 [ 4113.501155][ T253] kthread+0x28a/0x350 [ 4113.501155][ T253] ret_from_fork+0x31/0x70 [ 4113.501155][ T253] ret_from_fork_asm+0x1a/0x30 [ 4113.501155][ T253] [ 4113.503466][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4113.503466][ T253] netdev_get_by_index+0x5e/0x80 [ 4113.503466][ T253] fib6_nh_init+0x3d8/0x1580 [ 4113.503466][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4113.503466][ T253] ip6_route_add+0x1c/0x140 [ 4113.503466][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4113.503466][ T253] inet6_addr_add+0x4f8/0xa40 [ 4113.503466][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4113.503466][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4113.503466][ T253] netlink_rcv_skb+0x130/0x360 [ 4113.503466][ T253] netlink_unicast+0x449/0x710 [ 4113.503466][ T253] netlink_sendmsg+0x723/0xbe0 [ 4113.503466][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4113.503466][ T253] ___sys_sendmsg+0xee/0x170 [ 4113.503466][ T253] __sys_sendmsg+0xcd/0x170 [ 4113.503466][ T253] do_syscall_64+0xc6/0x1e0 [ 4113.503466][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4113.503466][ T253] [ 4113.505817][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4113.505817][ T253] netdev_get_by_index+0x5e/0x80 [ 4113.505817][ T253] fib6_nh_init+0x3d8/0x1580 [ 4113.505817][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4113.505817][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4113.505817][ T253] ipv6_add_addr+0x411/0x2000 [ 4113.505817][ T253] inet6_addr_add+0x30e/0xa40 [ 4113.505817][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4113.505817][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4113.505817][ T253] netlink_rcv_skb+0x130/0x360 [ 4113.505817][ T253] netlink_unicast+0x449/0x710 [ 4113.505817][ T253] netlink_sendmsg+0x723/0xbe0 [ 4113.505817][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4113.505817][ T253] ___sys_sendmsg+0xee/0x170 [ 4113.505817][ T253] __sys_sendmsg+0xcd/0x170 [ 4113.505817][ T253] do_syscall_64+0xc6/0x1e0 [ 4113.505817][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4113.505817][ T253] [ 4113.508196][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4113.508196][ T253] netdev_get_by_index+0x5e/0x80 [ 4113.508196][ T253] fib6_nh_init+0x3d8/0x1580 [ 4113.508196][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4113.508196][ T253] ip6_route_add+0x1c/0x140 [ 4113.508196][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4113.508196][ T253] addrconf_add_dev+0xe2/0x170 [ 4113.508196][ T253] inet6_addr_add+0x12f/0xa40 [ 4113.508196][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4113.508196][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4113.508196][ T253] netlink_rcv_skb+0x130/0x360 [ 4113.508196][ T253] netlink_unicast+0x449/0x710 [ 4113.508196][ T253] netlink_sendmsg+0x723/0xbe0 [ 4113.508196][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4113.508196][ T253] ___sys_sendmsg+0xee/0x170 [ 4113.508196][ T253] __sys_sendmsg+0xcd/0x170 [ 4113.508196][ T253] do_syscall_64+0xc6/0x1e0 [ 4113.508196][ T253] [ 4113.510546][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4113.510546][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4113.510546][ T253] ipv6_find_idev+0x102/0x170 [ 4113.510546][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4113.510546][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4113.510546][ T253] netlink_rcv_skb+0x130/0x360 [ 4113.510546][ T253] netlink_unicast+0x449/0x710 [ 4113.510546][ T253] netlink_sendmsg+0x723/0xbe0 [ 4113.510546][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4113.510546][ T253] ___sys_sendmsg+0xee/0x170 [ 4113.510546][ T253] __sys_sendmsg+0xcd/0x170 [ 4113.510546][ T253] do_syscall_64+0xc6/0x1e0 [ 4113.510546][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4113.510546][ T253] [ 4113.512329][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4113.512329][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4113.512329][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4113.512329][ T253] ipv6_find_idev+0x102/0x170 [ 4113.512329][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4113.512329][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4113.512329][ T253] netlink_rcv_skb+0x130/0x360 [ 4113.512329][ T253] netlink_unicast+0x449/0x710 [ 4113.512329][ T253] netlink_sendmsg+0x723/0xbe0 [ 4113.512329][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4113.512329][ T253] ___sys_sendmsg+0xee/0x170 [ 4113.512329][ T253] __sys_sendmsg+0xcd/0x170 [ 4113.512329][ T253] do_syscall_64+0xc6/0x1e0 [ 4113.512329][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4113.512329][ T253] [ 4123.754299][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4123.754795][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4123.754795][ T253] dst_init+0x84/0x4a0 [ 4123.754795][ T253] dst_alloc+0x97/0x150 [ 4123.754795][ T253] ip6_dst_alloc+0x23/0x90 [ 4123.754795][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4123.754795][ T253] ip6_pol_route+0x56f/0x840 [ 4123.754795][ T253] fib6_rule_lookup+0x334/0x630 [ 4123.754795][ T253] ip6_route_output_flags+0x259/0x480 [ 4123.754795][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4123.754795][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4123.754795][ T253] netlink_rcv_skb+0x130/0x360 [ 4123.754795][ T253] netlink_unicast+0x449/0x710 [ 4123.754795][ T253] netlink_sendmsg+0x723/0xbe0 [ 4123.754795][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4123.754795][ T253] ___sys_sendmsg+0xee/0x170 [ 4123.754795][ T253] __sys_sendmsg+0xcd/0x170 [ 4123.754795][ T253] do_syscall_64+0xc6/0x1e0 [ 4123.754795][ T253] [ 4123.757030][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4123.757030][ T253] netdev_get_by_index+0x5e/0x80 [ 4123.757030][ T253] fib6_nh_init+0x3d8/0x1580 [ 4123.757030][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4123.757030][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4123.757030][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4123.757030][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4123.757030][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4123.757030][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4123.757030][ T253] addrconf_dad_begin+0x310/0x670 [ 4123.757030][ T253] addrconf_dad_work+0x10b/0xab0 [ 4123.757030][ T253] process_one_work+0x84d/0x18a0 [ 4123.757030][ T253] worker_thread+0x587/0xd30 [ 4123.757030][ T253] kthread+0x28a/0x350 [ 4123.757030][ T253] ret_from_fork+0x31/0x70 [ 4123.757030][ T253] ret_from_fork_asm+0x1a/0x30 [ 4123.757030][ T253] [ 4123.759248][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4123.759248][ T253] netdev_get_by_index+0x5e/0x80 [ 4123.759248][ T253] fib6_nh_init+0x3d8/0x1580 [ 4123.759248][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4123.759248][ T253] ip6_route_add+0x1c/0x140 [ 4123.759248][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4123.759248][ T253] inet6_addr_add+0x4f8/0xa40 [ 4123.759248][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4123.759248][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4123.759248][ T253] netlink_rcv_skb+0x130/0x360 [ 4123.759248][ T253] netlink_unicast+0x449/0x710 [ 4123.759248][ T253] netlink_sendmsg+0x723/0xbe0 [ 4123.759248][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4123.759248][ T253] ___sys_sendmsg+0xee/0x170 [ 4123.759248][ T253] __sys_sendmsg+0xcd/0x170 [ 4123.759248][ T253] do_syscall_64+0xc6/0x1e0 [ 4123.759248][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4123.759248][ T253] [ 4123.762187][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4123.762187][ T253] netdev_get_by_index+0x5e/0x80 [ 4123.762187][ T253] fib6_nh_init+0x3d8/0x1580 [ 4123.762187][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4123.762187][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4123.762187][ T253] ipv6_add_addr+0x411/0x2000 [ 4123.762187][ T253] inet6_addr_add+0x30e/0xa40 [ 4123.762187][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4123.762187][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4123.762187][ T253] netlink_rcv_skb+0x130/0x360 [ 4123.762187][ T253] netlink_unicast+0x449/0x710 [ 4123.762187][ T253] netlink_sendmsg+0x723/0xbe0 [ 4123.762187][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4123.762187][ T253] ___sys_sendmsg+0xee/0x170 [ 4123.762187][ T253] __sys_sendmsg+0xcd/0x170 [ 4123.762187][ T253] do_syscall_64+0xc6/0x1e0 [ 4123.762187][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4123.762187][ T253] [ 4123.764547][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4123.764547][ T253] netdev_get_by_index+0x5e/0x80 [ 4123.764547][ T253] fib6_nh_init+0x3d8/0x1580 [ 4123.764547][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4123.764547][ T253] ip6_route_add+0x1c/0x140 [ 4123.764547][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4123.764547][ T253] addrconf_add_dev+0xe2/0x170 [ 4123.764547][ T253] inet6_addr_add+0x12f/0xa40 [ 4123.764547][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4123.764547][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4123.764547][ T253] netlink_rcv_skb+0x130/0x360 [ 4123.764547][ T253] netlink_unicast+0x449/0x710 [ 4123.764547][ T253] netlink_sendmsg+0x723/0xbe0 [ 4123.764547][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4123.764547][ T253] ___sys_sendmsg+0xee/0x170 [ 4123.764547][ T253] __sys_sendmsg+0xcd/0x170 [ 4123.764547][ T253] do_syscall_64+0xc6/0x1e0 [ 4123.764547][ T253] [ 4123.766882][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4123.766882][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4123.766882][ T253] ipv6_find_idev+0x102/0x170 [ 4123.766882][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4123.766882][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4123.766882][ T253] netlink_rcv_skb+0x130/0x360 [ 4123.766882][ T253] netlink_unicast+0x449/0x710 [ 4123.766882][ T253] netlink_sendmsg+0x723/0xbe0 [ 4123.766882][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4123.766882][ T253] ___sys_sendmsg+0xee/0x170 [ 4123.766882][ T253] __sys_sendmsg+0xcd/0x170 [ 4123.766882][ T253] do_syscall_64+0xc6/0x1e0 [ 4123.766882][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4123.766882][ T253] [ 4123.768719][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4123.768719][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4123.768719][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4123.768719][ T253] ipv6_find_idev+0x102/0x170 [ 4123.768719][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4123.768719][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4123.768719][ T253] netlink_rcv_skb+0x130/0x360 [ 4123.768719][ T253] netlink_unicast+0x449/0x710 [ 4123.768719][ T253] netlink_sendmsg+0x723/0xbe0 [ 4123.768719][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4123.768719][ T253] ___sys_sendmsg+0xee/0x170 [ 4123.768719][ T253] __sys_sendmsg+0xcd/0x170 [ 4123.768719][ T253] do_syscall_64+0xc6/0x1e0 [ 4123.768719][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4123.768719][ T253] [ 4133.842316][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4133.842739][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4133.842739][ T253] dst_init+0x84/0x4a0 [ 4133.842739][ T253] dst_alloc+0x97/0x150 [ 4133.842739][ T253] ip6_dst_alloc+0x23/0x90 [ 4133.842739][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4133.842739][ T253] ip6_pol_route+0x56f/0x840 [ 4133.842739][ T253] fib6_rule_lookup+0x334/0x630 [ 4133.842739][ T253] ip6_route_output_flags+0x259/0x480 [ 4133.842739][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4133.842739][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4133.842739][ T253] netlink_rcv_skb+0x130/0x360 [ 4133.842739][ T253] netlink_unicast+0x449/0x710 [ 4133.842739][ T253] netlink_sendmsg+0x723/0xbe0 [ 4133.842739][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4133.842739][ T253] ___sys_sendmsg+0xee/0x170 [ 4133.842739][ T253] __sys_sendmsg+0xcd/0x170 [ 4133.842739][ T253] do_syscall_64+0xc6/0x1e0 [ 4133.842739][ T253] [ 4133.845156][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4133.845156][ T253] netdev_get_by_index+0x5e/0x80 [ 4133.845156][ T253] fib6_nh_init+0x3d8/0x1580 [ 4133.845156][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4133.845156][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4133.845156][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4133.845156][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4133.845156][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4133.845156][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4133.845156][ T253] addrconf_dad_begin+0x310/0x670 [ 4133.845156][ T253] addrconf_dad_work+0x10b/0xab0 [ 4133.845156][ T253] process_one_work+0x84d/0x18a0 [ 4133.845156][ T253] worker_thread+0x587/0xd30 [ 4133.845156][ T253] kthread+0x28a/0x350 [ 4133.845156][ T253] ret_from_fork+0x31/0x70 [ 4133.845156][ T253] ret_from_fork_asm+0x1a/0x30 [ 4133.845156][ T253] [ 4133.847398][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4133.847398][ T253] netdev_get_by_index+0x5e/0x80 [ 4133.847398][ T253] fib6_nh_init+0x3d8/0x1580 [ 4133.847398][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4133.847398][ T253] ip6_route_add+0x1c/0x140 [ 4133.847398][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4133.847398][ T253] inet6_addr_add+0x4f8/0xa40 [ 4133.847398][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4133.847398][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4133.847398][ T253] netlink_rcv_skb+0x130/0x360 [ 4133.847398][ T253] netlink_unicast+0x449/0x710 [ 4133.847398][ T253] netlink_sendmsg+0x723/0xbe0 [ 4133.847398][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4133.847398][ T253] ___sys_sendmsg+0xee/0x170 [ 4133.847398][ T253] __sys_sendmsg+0xcd/0x170 [ 4133.847398][ T253] do_syscall_64+0xc6/0x1e0 [ 4133.847398][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4133.847398][ T253] [ 4133.849777][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4133.849777][ T253] netdev_get_by_index+0x5e/0x80 [ 4133.849777][ T253] fib6_nh_init+0x3d8/0x1580 [ 4133.849777][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4133.849777][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4133.849777][ T253] ipv6_add_addr+0x411/0x2000 [ 4133.849777][ T253] inet6_addr_add+0x30e/0xa40 [ 4133.849777][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4133.849777][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4133.849777][ T253] netlink_rcv_skb+0x130/0x360 [ 4133.849777][ T253] netlink_unicast+0x449/0x710 [ 4133.849777][ T253] netlink_sendmsg+0x723/0xbe0 [ 4133.849777][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4133.849777][ T253] ___sys_sendmsg+0xee/0x170 [ 4133.849777][ T253] __sys_sendmsg+0xcd/0x170 [ 4133.849777][ T253] do_syscall_64+0xc6/0x1e0 [ 4133.849777][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4133.849777][ T253] [ 4133.852191][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4133.852191][ T253] netdev_get_by_index+0x5e/0x80 [ 4133.852191][ T253] fib6_nh_init+0x3d8/0x1580 [ 4133.852191][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4133.852191][ T253] ip6_route_add+0x1c/0x140 [ 4133.852191][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4133.852191][ T253] addrconf_add_dev+0xe2/0x170 [ 4133.852191][ T253] inet6_addr_add+0x12f/0xa40 [ 4133.852191][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4133.852191][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4133.852191][ T253] netlink_rcv_skb+0x130/0x360 [ 4133.852191][ T253] netlink_unicast+0x449/0x710 [ 4133.852191][ T253] netlink_sendmsg+0x723/0xbe0 [ 4133.852191][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4133.852191][ T253] ___sys_sendmsg+0xee/0x170 [ 4133.852191][ T253] __sys_sendmsg+0xcd/0x170 [ 4133.852191][ T253] do_syscall_64+0xc6/0x1e0 [ 4133.852191][ T253] [ 4133.854557][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4133.854557][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4133.854557][ T253] ipv6_find_idev+0x102/0x170 [ 4133.854557][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4133.854557][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4133.854557][ T253] netlink_rcv_skb+0x130/0x360 [ 4133.854557][ T253] netlink_unicast+0x449/0x710 [ 4133.854557][ T253] netlink_sendmsg+0x723/0xbe0 [ 4133.854557][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4133.854557][ T253] ___sys_sendmsg+0xee/0x170 [ 4133.854557][ T253] __sys_sendmsg+0xcd/0x170 [ 4133.854557][ T253] do_syscall_64+0xc6/0x1e0 [ 4133.854557][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4133.854557][ T253] [ 4133.856319][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4133.856319][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4133.856319][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4133.856319][ T253] ipv6_find_idev+0x102/0x170 [ 4133.856319][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4133.856319][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4133.856319][ T253] netlink_rcv_skb+0x130/0x360 [ 4133.856319][ T253] netlink_unicast+0x449/0x710 [ 4133.856319][ T253] netlink_sendmsg+0x723/0xbe0 [ 4133.856319][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4133.856319][ T253] ___sys_sendmsg+0xee/0x170 [ 4133.856319][ T253] __sys_sendmsg+0xcd/0x170 [ 4133.856319][ T253] do_syscall_64+0xc6/0x1e0 [ 4133.856319][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4133.856319][ T253] [ 4144.106303][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4144.106955][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4144.106955][ T253] dst_init+0x84/0x4a0 [ 4144.106955][ T253] dst_alloc+0x97/0x150 [ 4144.106955][ T253] ip6_dst_alloc+0x23/0x90 [ 4144.106955][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4144.106955][ T253] ip6_pol_route+0x56f/0x840 [ 4144.106955][ T253] fib6_rule_lookup+0x334/0x630 [ 4144.106955][ T253] ip6_route_output_flags+0x259/0x480 [ 4144.106955][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4144.106955][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4144.106955][ T253] netlink_rcv_skb+0x130/0x360 [ 4144.106955][ T253] netlink_unicast+0x449/0x710 [ 4144.106955][ T253] netlink_sendmsg+0x723/0xbe0 [ 4144.106955][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4144.106955][ T253] ___sys_sendmsg+0xee/0x170 [ 4144.106955][ T253] __sys_sendmsg+0xcd/0x170 [ 4144.106955][ T253] do_syscall_64+0xc6/0x1e0 [ 4144.106955][ T253] [ 4144.110253][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4144.110253][ T253] netdev_get_by_index+0x5e/0x80 [ 4144.110253][ T253] fib6_nh_init+0x3d8/0x1580 [ 4144.110253][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4144.110253][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4144.110253][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4144.110253][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4144.110253][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4144.110253][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4144.110253][ T253] addrconf_dad_begin+0x310/0x670 [ 4144.110253][ T253] addrconf_dad_work+0x10b/0xab0 [ 4144.110253][ T253] process_one_work+0x84d/0x18a0 [ 4144.110253][ T253] worker_thread+0x587/0xd30 [ 4144.110253][ T253] kthread+0x28a/0x350 [ 4144.110253][ T253] ret_from_fork+0x31/0x70 [ 4144.110253][ T253] ret_from_fork_asm+0x1a/0x30 [ 4144.110253][ T253] [ 4144.113592][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4144.113592][ T253] netdev_get_by_index+0x5e/0x80 [ 4144.113592][ T253] fib6_nh_init+0x3d8/0x1580 [ 4144.113592][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4144.113592][ T253] ip6_route_add+0x1c/0x140 [ 4144.113592][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4144.113592][ T253] inet6_addr_add+0x4f8/0xa40 [ 4144.113592][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4144.113592][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4144.113592][ T253] netlink_rcv_skb+0x130/0x360 [ 4144.113592][ T253] netlink_unicast+0x449/0x710 [ 4144.113592][ T253] netlink_sendmsg+0x723/0xbe0 [ 4144.113592][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4144.113592][ T253] ___sys_sendmsg+0xee/0x170 [ 4144.113592][ T253] __sys_sendmsg+0xcd/0x170 [ 4144.113592][ T253] do_syscall_64+0xc6/0x1e0 [ 4144.113592][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4144.113592][ T253] [ 4144.117062][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4144.117062][ T253] netdev_get_by_index+0x5e/0x80 [ 4144.117062][ T253] fib6_nh_init+0x3d8/0x1580 [ 4144.117062][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4144.117062][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4144.117062][ T253] ipv6_add_addr+0x411/0x2000 [ 4144.117062][ T253] inet6_addr_add+0x30e/0xa40 [ 4144.117062][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4144.117062][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4144.117062][ T253] netlink_rcv_skb+0x130/0x360 [ 4144.117062][ T253] netlink_unicast+0x449/0x710 [ 4144.117062][ T253] netlink_sendmsg+0x723/0xbe0 [ 4144.117062][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4144.117062][ T253] ___sys_sendmsg+0xee/0x170 [ 4144.117062][ T253] __sys_sendmsg+0xcd/0x170 [ 4144.117062][ T253] do_syscall_64+0xc6/0x1e0 [ 4144.117062][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4144.117062][ T253] [ 4144.120589][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4144.120589][ T253] netdev_get_by_index+0x5e/0x80 [ 4144.120589][ T253] fib6_nh_init+0x3d8/0x1580 [ 4144.120589][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4144.120589][ T253] ip6_route_add+0x1c/0x140 [ 4144.120589][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4144.120589][ T253] addrconf_add_dev+0xe2/0x170 [ 4144.120589][ T253] inet6_addr_add+0x12f/0xa40 [ 4144.120589][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4144.120589][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4144.120589][ T253] netlink_rcv_skb+0x130/0x360 [ 4144.120589][ T253] netlink_unicast+0x449/0x710 [ 4144.120589][ T253] netlink_sendmsg+0x723/0xbe0 [ 4144.120589][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4144.120589][ T253] ___sys_sendmsg+0xee/0x170 [ 4144.120589][ T253] __sys_sendmsg+0xcd/0x170 [ 4144.120589][ T253] do_syscall_64+0xc6/0x1e0 [ 4144.120589][ T253] [ 4144.123961][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4144.123961][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4144.123961][ T253] ipv6_find_idev+0x102/0x170 [ 4144.123961][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4144.123961][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4144.123961][ T253] netlink_rcv_skb+0x130/0x360 [ 4144.123961][ T253] netlink_unicast+0x449/0x710 [ 4144.123961][ T253] netlink_sendmsg+0x723/0xbe0 [ 4144.123961][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4144.123961][ T253] ___sys_sendmsg+0xee/0x170 [ 4144.123961][ T253] __sys_sendmsg+0xcd/0x170 [ 4144.123961][ T253] do_syscall_64+0xc6/0x1e0 [ 4144.123961][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4144.123961][ T253] [ 4144.126699][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4144.126699][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4144.126699][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4144.126699][ T253] ipv6_find_idev+0x102/0x170 [ 4144.126699][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4144.126699][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4144.126699][ T253] netlink_rcv_skb+0x130/0x360 [ 4144.126699][ T253] netlink_unicast+0x449/0x710 [ 4144.126699][ T253] netlink_sendmsg+0x723/0xbe0 [ 4144.126699][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4144.126699][ T253] ___sys_sendmsg+0xee/0x170 [ 4144.126699][ T253] __sys_sendmsg+0xcd/0x170 [ 4144.126699][ T253] do_syscall_64+0xc6/0x1e0 [ 4144.126699][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4144.126699][ T253] [ 4154.378364][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4154.378836][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4154.378836][ T253] dst_init+0x84/0x4a0 [ 4154.378836][ T253] dst_alloc+0x97/0x150 [ 4154.378836][ T253] ip6_dst_alloc+0x23/0x90 [ 4154.378836][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4154.378836][ T253] ip6_pol_route+0x56f/0x840 [ 4154.378836][ T253] fib6_rule_lookup+0x334/0x630 [ 4154.378836][ T253] ip6_route_output_flags+0x259/0x480 [ 4154.378836][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4154.378836][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4154.378836][ T253] netlink_rcv_skb+0x130/0x360 [ 4154.378836][ T253] netlink_unicast+0x449/0x710 [ 4154.378836][ T253] netlink_sendmsg+0x723/0xbe0 [ 4154.378836][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4154.378836][ T253] ___sys_sendmsg+0xee/0x170 [ 4154.378836][ T253] __sys_sendmsg+0xcd/0x170 [ 4154.378836][ T253] do_syscall_64+0xc6/0x1e0 [ 4154.378836][ T253] [ 4154.381061][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4154.381061][ T253] netdev_get_by_index+0x5e/0x80 [ 4154.381061][ T253] fib6_nh_init+0x3d8/0x1580 [ 4154.381061][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4154.381061][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4154.381061][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4154.381061][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4154.381061][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4154.381061][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4154.381061][ T253] addrconf_dad_begin+0x310/0x670 [ 4154.381061][ T253] addrconf_dad_work+0x10b/0xab0 [ 4154.381061][ T253] process_one_work+0x84d/0x18a0 [ 4154.381061][ T253] worker_thread+0x587/0xd30 [ 4154.381061][ T253] kthread+0x28a/0x350 [ 4154.381061][ T253] ret_from_fork+0x31/0x70 [ 4154.381061][ T253] ret_from_fork_asm+0x1a/0x30 [ 4154.381061][ T253] [ 4154.383207][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4154.383207][ T253] netdev_get_by_index+0x5e/0x80 [ 4154.383207][ T253] fib6_nh_init+0x3d8/0x1580 [ 4154.383207][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4154.383207][ T253] ip6_route_add+0x1c/0x140 [ 4154.383207][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4154.383207][ T253] inet6_addr_add+0x4f8/0xa40 [ 4154.383207][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4154.383207][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4154.383207][ T253] netlink_rcv_skb+0x130/0x360 [ 4154.383207][ T253] netlink_unicast+0x449/0x710 [ 4154.383207][ T253] netlink_sendmsg+0x723/0xbe0 [ 4154.383207][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4154.383207][ T253] ___sys_sendmsg+0xee/0x170 [ 4154.383207][ T253] __sys_sendmsg+0xcd/0x170 [ 4154.383207][ T253] do_syscall_64+0xc6/0x1e0 [ 4154.383207][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4154.383207][ T253] [ 4154.385454][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4154.385454][ T253] netdev_get_by_index+0x5e/0x80 [ 4154.385454][ T253] fib6_nh_init+0x3d8/0x1580 [ 4154.385454][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4154.385454][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4154.385454][ T253] ipv6_add_addr+0x411/0x2000 [ 4154.385454][ T253] inet6_addr_add+0x30e/0xa40 [ 4154.385454][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4154.385454][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4154.385454][ T253] netlink_rcv_skb+0x130/0x360 [ 4154.385454][ T253] netlink_unicast+0x449/0x710 [ 4154.385454][ T253] netlink_sendmsg+0x723/0xbe0 [ 4154.385454][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4154.385454][ T253] ___sys_sendmsg+0xee/0x170 [ 4154.385454][ T253] __sys_sendmsg+0xcd/0x170 [ 4154.385454][ T253] do_syscall_64+0xc6/0x1e0 [ 4154.385454][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4154.385454][ T253] [ 4154.387689][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4154.387689][ T253] netdev_get_by_index+0x5e/0x80 [ 4154.387689][ T253] fib6_nh_init+0x3d8/0x1580 [ 4154.387689][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4154.387689][ T253] ip6_route_add+0x1c/0x140 [ 4154.387689][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4154.387689][ T253] addrconf_add_dev+0xe2/0x170 [ 4154.387689][ T253] inet6_addr_add+0x12f/0xa40 [ 4154.387689][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4154.387689][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4154.387689][ T253] netlink_rcv_skb+0x130/0x360 [ 4154.387689][ T253] netlink_unicast+0x449/0x710 [ 4154.387689][ T253] netlink_sendmsg+0x723/0xbe0 [ 4154.387689][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4154.387689][ T253] ___sys_sendmsg+0xee/0x170 [ 4154.387689][ T253] __sys_sendmsg+0xcd/0x170 [ 4154.387689][ T253] do_syscall_64+0xc6/0x1e0 [ 4154.387689][ T253] [ 4154.389886][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4154.389886][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4154.389886][ T253] ipv6_find_idev+0x102/0x170 [ 4154.389886][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4154.389886][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4154.389886][ T253] netlink_rcv_skb+0x130/0x360 [ 4154.389886][ T253] netlink_unicast+0x449/0x710 [ 4154.389886][ T253] netlink_sendmsg+0x723/0xbe0 [ 4154.389886][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4154.389886][ T253] ___sys_sendmsg+0xee/0x170 [ 4154.389886][ T253] __sys_sendmsg+0xcd/0x170 [ 4154.389886][ T253] do_syscall_64+0xc6/0x1e0 [ 4154.389886][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4154.389886][ T253] [ 4154.391619][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4154.391619][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4154.391619][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4154.391619][ T253] ipv6_find_idev+0x102/0x170 [ 4154.391619][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4154.391619][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4154.391619][ T253] netlink_rcv_skb+0x130/0x360 [ 4154.391619][ T253] netlink_unicast+0x449/0x710 [ 4154.391619][ T253] netlink_sendmsg+0x723/0xbe0 [ 4154.391619][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4154.391619][ T253] ___sys_sendmsg+0xee/0x170 [ 4154.391619][ T253] __sys_sendmsg+0xcd/0x170 [ 4154.391619][ T253] do_syscall_64+0xc6/0x1e0 [ 4154.391619][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4154.391619][ T253] [ 4164.642300][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4164.642784][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4164.642784][ T253] dst_init+0x84/0x4a0 [ 4164.642784][ T253] dst_alloc+0x97/0x150 [ 4164.642784][ T253] ip6_dst_alloc+0x23/0x90 [ 4164.642784][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4164.642784][ T253] ip6_pol_route+0x56f/0x840 [ 4164.642784][ T253] fib6_rule_lookup+0x334/0x630 [ 4164.642784][ T253] ip6_route_output_flags+0x259/0x480 [ 4164.642784][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4164.642784][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4164.642784][ T253] netlink_rcv_skb+0x130/0x360 [ 4164.642784][ T253] netlink_unicast+0x449/0x710 [ 4164.642784][ T253] netlink_sendmsg+0x723/0xbe0 [ 4164.642784][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4164.642784][ T253] ___sys_sendmsg+0xee/0x170 [ 4164.642784][ T253] __sys_sendmsg+0xcd/0x170 [ 4164.642784][ T253] do_syscall_64+0xc6/0x1e0 [ 4164.642784][ T253] [ 4164.644982][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4164.644982][ T253] netdev_get_by_index+0x5e/0x80 [ 4164.644982][ T253] fib6_nh_init+0x3d8/0x1580 [ 4164.644982][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4164.644982][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4164.644982][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4164.644982][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4164.644982][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4164.644982][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4164.644982][ T253] addrconf_dad_begin+0x310/0x670 [ 4164.644982][ T253] addrconf_dad_work+0x10b/0xab0 [ 4164.644982][ T253] process_one_work+0x84d/0x18a0 [ 4164.644982][ T253] worker_thread+0x587/0xd30 [ 4164.644982][ T253] kthread+0x28a/0x350 [ 4164.644982][ T253] ret_from_fork+0x31/0x70 [ 4164.644982][ T253] ret_from_fork_asm+0x1a/0x30 [ 4164.644982][ T253] [ 4164.647124][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4164.647124][ T253] netdev_get_by_index+0x5e/0x80 [ 4164.647124][ T253] fib6_nh_init+0x3d8/0x1580 [ 4164.647124][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4164.647124][ T253] ip6_route_add+0x1c/0x140 [ 4164.647124][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4164.647124][ T253] inet6_addr_add+0x4f8/0xa40 [ 4164.647124][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4164.647124][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4164.647124][ T253] netlink_rcv_skb+0x130/0x360 [ 4164.647124][ T253] netlink_unicast+0x449/0x710 [ 4164.647124][ T253] netlink_sendmsg+0x723/0xbe0 [ 4164.647124][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4164.647124][ T253] ___sys_sendmsg+0xee/0x170 [ 4164.647124][ T253] __sys_sendmsg+0xcd/0x170 [ 4164.647124][ T253] do_syscall_64+0xc6/0x1e0 [ 4164.647124][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4164.647124][ T253] [ 4164.649370][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4164.649370][ T253] netdev_get_by_index+0x5e/0x80 [ 4164.649370][ T253] fib6_nh_init+0x3d8/0x1580 [ 4164.649370][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4164.649370][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4164.649370][ T253] ipv6_add_addr+0x411/0x2000 [ 4164.649370][ T253] inet6_addr_add+0x30e/0xa40 [ 4164.649370][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4164.649370][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4164.649370][ T253] netlink_rcv_skb+0x130/0x360 [ 4164.649370][ T253] netlink_unicast+0x449/0x710 [ 4164.649370][ T253] netlink_sendmsg+0x723/0xbe0 [ 4164.649370][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4164.649370][ T253] ___sys_sendmsg+0xee/0x170 [ 4164.649370][ T253] __sys_sendmsg+0xcd/0x170 [ 4164.649370][ T253] do_syscall_64+0xc6/0x1e0 [ 4164.649370][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4164.649370][ T253] [ 4164.651621][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4164.651621][ T253] netdev_get_by_index+0x5e/0x80 [ 4164.651621][ T253] fib6_nh_init+0x3d8/0x1580 [ 4164.651621][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4164.651621][ T253] ip6_route_add+0x1c/0x140 [ 4164.651621][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4164.651621][ T253] addrconf_add_dev+0xe2/0x170 [ 4164.651621][ T253] inet6_addr_add+0x12f/0xa40 [ 4164.651621][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4164.651621][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4164.651621][ T253] netlink_rcv_skb+0x130/0x360 [ 4164.651621][ T253] netlink_unicast+0x449/0x710 [ 4164.651621][ T253] netlink_sendmsg+0x723/0xbe0 [ 4164.651621][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4164.651621][ T253] ___sys_sendmsg+0xee/0x170 [ 4164.651621][ T253] __sys_sendmsg+0xcd/0x170 [ 4164.651621][ T253] do_syscall_64+0xc6/0x1e0 [ 4164.651621][ T253] [ 4164.653836][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4164.653836][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4164.653836][ T253] ipv6_find_idev+0x102/0x170 [ 4164.653836][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4164.653836][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4164.653836][ T253] netlink_rcv_skb+0x130/0x360 [ 4164.653836][ T253] netlink_unicast+0x449/0x710 [ 4164.653836][ T253] netlink_sendmsg+0x723/0xbe0 [ 4164.653836][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4164.653836][ T253] ___sys_sendmsg+0xee/0x170 [ 4164.653836][ T253] __sys_sendmsg+0xcd/0x170 [ 4164.653836][ T253] do_syscall_64+0xc6/0x1e0 [ 4164.653836][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4164.653836][ T253] [ 4164.655559][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4164.655559][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4164.655559][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4164.655559][ T253] ipv6_find_idev+0x102/0x170 [ 4164.655559][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4164.655559][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4164.655559][ T253] netlink_rcv_skb+0x130/0x360 [ 4164.655559][ T253] netlink_unicast+0x449/0x710 [ 4164.655559][ T253] netlink_sendmsg+0x723/0xbe0 [ 4164.655559][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4164.655559][ T253] ___sys_sendmsg+0xee/0x170 [ 4164.655559][ T253] __sys_sendmsg+0xcd/0x170 [ 4164.655559][ T253] do_syscall_64+0xc6/0x1e0 [ 4164.655559][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4164.655559][ T253] [ 4174.730316][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4174.730754][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4174.730754][ T253] dst_init+0x84/0x4a0 [ 4174.730754][ T253] dst_alloc+0x97/0x150 [ 4174.730754][ T253] ip6_dst_alloc+0x23/0x90 [ 4174.730754][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4174.730754][ T253] ip6_pol_route+0x56f/0x840 [ 4174.730754][ T253] fib6_rule_lookup+0x334/0x630 [ 4174.730754][ T253] ip6_route_output_flags+0x259/0x480 [ 4174.730754][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4174.730754][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4174.730754][ T253] netlink_rcv_skb+0x130/0x360 [ 4174.730754][ T253] netlink_unicast+0x449/0x710 [ 4174.730754][ T253] netlink_sendmsg+0x723/0xbe0 [ 4174.730754][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4174.730754][ T253] ___sys_sendmsg+0xee/0x170 [ 4174.730754][ T253] __sys_sendmsg+0xcd/0x170 [ 4174.730754][ T253] do_syscall_64+0xc6/0x1e0 [ 4174.730754][ T253] [ 4174.732958][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4174.732958][ T253] netdev_get_by_index+0x5e/0x80 [ 4174.732958][ T253] fib6_nh_init+0x3d8/0x1580 [ 4174.732958][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4174.732958][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4174.732958][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4174.732958][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4174.732958][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4174.732958][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4174.732958][ T253] addrconf_dad_begin+0x310/0x670 [ 4174.732958][ T253] addrconf_dad_work+0x10b/0xab0 [ 4174.732958][ T253] process_one_work+0x84d/0x18a0 [ 4174.732958][ T253] worker_thread+0x587/0xd30 [ 4174.732958][ T253] kthread+0x28a/0x350 [ 4174.732958][ T253] ret_from_fork+0x31/0x70 [ 4174.732958][ T253] ret_from_fork_asm+0x1a/0x30 [ 4174.732958][ T253] [ 4174.735103][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4174.735103][ T253] netdev_get_by_index+0x5e/0x80 [ 4174.735103][ T253] fib6_nh_init+0x3d8/0x1580 [ 4174.735103][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4174.735103][ T253] ip6_route_add+0x1c/0x140 [ 4174.735103][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4174.735103][ T253] inet6_addr_add+0x4f8/0xa40 [ 4174.735103][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4174.735103][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4174.735103][ T253] netlink_rcv_skb+0x130/0x360 [ 4174.735103][ T253] netlink_unicast+0x449/0x710 [ 4174.735103][ T253] netlink_sendmsg+0x723/0xbe0 [ 4174.735103][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4174.735103][ T253] ___sys_sendmsg+0xee/0x170 [ 4174.735103][ T253] __sys_sendmsg+0xcd/0x170 [ 4174.735103][ T253] do_syscall_64+0xc6/0x1e0 [ 4174.735103][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4174.735103][ T253] [ 4174.737339][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4174.737339][ T253] netdev_get_by_index+0x5e/0x80 [ 4174.737339][ T253] fib6_nh_init+0x3d8/0x1580 [ 4174.737339][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4174.737339][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4174.737339][ T253] ipv6_add_addr+0x411/0x2000 [ 4174.737339][ T253] inet6_addr_add+0x30e/0xa40 [ 4174.737339][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4174.737339][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4174.737339][ T253] netlink_rcv_skb+0x130/0x360 [ 4174.737339][ T253] netlink_unicast+0x449/0x710 [ 4174.737339][ T253] netlink_sendmsg+0x723/0xbe0 [ 4174.737339][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4174.737339][ T253] ___sys_sendmsg+0xee/0x170 [ 4174.737339][ T253] __sys_sendmsg+0xcd/0x170 [ 4174.737339][ T253] do_syscall_64+0xc6/0x1e0 [ 4174.737339][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4174.737339][ T253] [ 4174.739578][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4174.739578][ T253] netdev_get_by_index+0x5e/0x80 [ 4174.739578][ T253] fib6_nh_init+0x3d8/0x1580 [ 4174.739578][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4174.739578][ T253] ip6_route_add+0x1c/0x140 [ 4174.739578][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4174.739578][ T253] addrconf_add_dev+0xe2/0x170 [ 4174.739578][ T253] inet6_addr_add+0x12f/0xa40 [ 4174.739578][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4174.739578][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4174.739578][ T253] netlink_rcv_skb+0x130/0x360 [ 4174.739578][ T253] netlink_unicast+0x449/0x710 [ 4174.739578][ T253] netlink_sendmsg+0x723/0xbe0 [ 4174.739578][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4174.739578][ T253] ___sys_sendmsg+0xee/0x170 [ 4174.739578][ T253] __sys_sendmsg+0xcd/0x170 [ 4174.739578][ T253] do_syscall_64+0xc6/0x1e0 [ 4174.739578][ T253] [ 4174.741792][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4174.741792][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4174.741792][ T253] ipv6_find_idev+0x102/0x170 [ 4174.741792][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4174.741792][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4174.741792][ T253] netlink_rcv_skb+0x130/0x360 [ 4174.741792][ T253] netlink_unicast+0x449/0x710 [ 4174.741792][ T253] netlink_sendmsg+0x723/0xbe0 [ 4174.741792][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4174.741792][ T253] ___sys_sendmsg+0xee/0x170 [ 4174.741792][ T253] __sys_sendmsg+0xcd/0x170 [ 4174.741792][ T253] do_syscall_64+0xc6/0x1e0 [ 4174.741792][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4174.741792][ T253] [ 4174.743518][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4174.743518][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4174.743518][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4174.743518][ T253] ipv6_find_idev+0x102/0x170 [ 4174.743518][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4174.743518][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4174.743518][ T253] netlink_rcv_skb+0x130/0x360 [ 4174.743518][ T253] netlink_unicast+0x449/0x710 [ 4174.743518][ T253] netlink_sendmsg+0x723/0xbe0 [ 4174.743518][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4174.743518][ T253] ___sys_sendmsg+0xee/0x170 [ 4174.743518][ T253] __sys_sendmsg+0xcd/0x170 [ 4174.743518][ T253] do_syscall_64+0xc6/0x1e0 [ 4174.743518][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4174.743518][ T253] [ 4184.986316][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4184.986743][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4184.986743][ T253] dst_init+0x84/0x4a0 [ 4184.986743][ T253] dst_alloc+0x97/0x150 [ 4184.986743][ T253] ip6_dst_alloc+0x23/0x90 [ 4184.986743][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4184.986743][ T253] ip6_pol_route+0x56f/0x840 [ 4184.986743][ T253] fib6_rule_lookup+0x334/0x630 [ 4184.986743][ T253] ip6_route_output_flags+0x259/0x480 [ 4184.986743][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4184.986743][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4184.986743][ T253] netlink_rcv_skb+0x130/0x360 [ 4184.986743][ T253] netlink_unicast+0x449/0x710 [ 4184.986743][ T253] netlink_sendmsg+0x723/0xbe0 [ 4184.986743][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4184.986743][ T253] ___sys_sendmsg+0xee/0x170 [ 4184.986743][ T253] __sys_sendmsg+0xcd/0x170 [ 4184.986743][ T253] do_syscall_64+0xc6/0x1e0 [ 4184.986743][ T253] [ 4184.988934][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4184.988934][ T253] netdev_get_by_index+0x5e/0x80 [ 4184.988934][ T253] fib6_nh_init+0x3d8/0x1580 [ 4184.988934][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4184.988934][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4184.988934][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4184.988934][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4184.988934][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4184.988934][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4184.988934][ T253] addrconf_dad_begin+0x310/0x670 [ 4184.988934][ T253] addrconf_dad_work+0x10b/0xab0 [ 4184.988934][ T253] process_one_work+0x84d/0x18a0 [ 4184.988934][ T253] worker_thread+0x587/0xd30 [ 4184.988934][ T253] kthread+0x28a/0x350 [ 4184.988934][ T253] ret_from_fork+0x31/0x70 [ 4184.988934][ T253] ret_from_fork_asm+0x1a/0x30 [ 4184.988934][ T253] [ 4184.991084][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4184.991084][ T253] netdev_get_by_index+0x5e/0x80 [ 4184.991084][ T253] fib6_nh_init+0x3d8/0x1580 [ 4184.991084][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4184.991084][ T253] ip6_route_add+0x1c/0x140 [ 4184.991084][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4184.991084][ T253] inet6_addr_add+0x4f8/0xa40 [ 4184.991084][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4184.991084][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4184.991084][ T253] netlink_rcv_skb+0x130/0x360 [ 4184.991084][ T253] netlink_unicast+0x449/0x710 [ 4184.991084][ T253] netlink_sendmsg+0x723/0xbe0 [ 4184.991084][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4184.991084][ T253] ___sys_sendmsg+0xee/0x170 [ 4184.991084][ T253] __sys_sendmsg+0xcd/0x170 [ 4184.991084][ T253] do_syscall_64+0xc6/0x1e0 [ 4184.991084][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4184.991084][ T253] [ 4184.993332][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4184.993332][ T253] netdev_get_by_index+0x5e/0x80 [ 4184.993332][ T253] fib6_nh_init+0x3d8/0x1580 [ 4184.993332][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4184.993332][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4184.993332][ T253] ipv6_add_addr+0x411/0x2000 [ 4184.993332][ T253] inet6_addr_add+0x30e/0xa40 [ 4184.993332][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4184.993332][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4184.993332][ T253] netlink_rcv_skb+0x130/0x360 [ 4184.993332][ T253] netlink_unicast+0x449/0x710 [ 4184.993332][ T253] netlink_sendmsg+0x723/0xbe0 [ 4184.993332][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4184.993332][ T253] ___sys_sendmsg+0xee/0x170 [ 4184.993332][ T253] __sys_sendmsg+0xcd/0x170 [ 4184.993332][ T253] do_syscall_64+0xc6/0x1e0 [ 4184.993332][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4184.993332][ T253] [ 4184.995567][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4184.995567][ T253] netdev_get_by_index+0x5e/0x80 [ 4184.995567][ T253] fib6_nh_init+0x3d8/0x1580 [ 4184.995567][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4184.995567][ T253] ip6_route_add+0x1c/0x140 [ 4184.995567][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4184.995567][ T253] addrconf_add_dev+0xe2/0x170 [ 4184.995567][ T253] inet6_addr_add+0x12f/0xa40 [ 4184.995567][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4184.995567][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4184.995567][ T253] netlink_rcv_skb+0x130/0x360 [ 4184.995567][ T253] netlink_unicast+0x449/0x710 [ 4184.995567][ T253] netlink_sendmsg+0x723/0xbe0 [ 4184.995567][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4184.995567][ T253] ___sys_sendmsg+0xee/0x170 [ 4184.995567][ T253] __sys_sendmsg+0xcd/0x170 [ 4184.995567][ T253] do_syscall_64+0xc6/0x1e0 [ 4184.995567][ T253] [ 4184.997765][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4184.997765][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4184.997765][ T253] ipv6_find_idev+0x102/0x170 [ 4184.997765][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4184.997765][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4184.997765][ T253] netlink_rcv_skb+0x130/0x360 [ 4184.997765][ T253] netlink_unicast+0x449/0x710 [ 4184.997765][ T253] netlink_sendmsg+0x723/0xbe0 [ 4184.997765][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4184.997765][ T253] ___sys_sendmsg+0xee/0x170 [ 4184.997765][ T253] __sys_sendmsg+0xcd/0x170 [ 4184.997765][ T253] do_syscall_64+0xc6/0x1e0 [ 4184.997765][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4184.997765][ T253] [ 4185.000046][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4185.000046][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4185.000046][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4185.000046][ T253] ipv6_find_idev+0x102/0x170 [ 4185.000046][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4185.000046][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4185.000046][ T253] netlink_rcv_skb+0x130/0x360 [ 4185.000046][ T253] netlink_unicast+0x449/0x710 [ 4185.000046][ T253] netlink_sendmsg+0x723/0xbe0 [ 4185.000046][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4185.000046][ T253] ___sys_sendmsg+0xee/0x170 [ 4185.000046][ T253] __sys_sendmsg+0xcd/0x170 [ 4185.000046][ T253] do_syscall_64+0xc6/0x1e0 [ 4185.000046][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4185.000046][ T253] [ 4195.242307][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4195.242936][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4195.242936][ T253] dst_init+0x84/0x4a0 [ 4195.242936][ T253] dst_alloc+0x97/0x150 [ 4195.242936][ T253] ip6_dst_alloc+0x23/0x90 [ 4195.242936][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4195.242936][ T253] ip6_pol_route+0x56f/0x840 [ 4195.242936][ T253] fib6_rule_lookup+0x334/0x630 [ 4195.242936][ T253] ip6_route_output_flags+0x259/0x480 [ 4195.242936][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4195.242936][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4195.242936][ T253] netlink_rcv_skb+0x130/0x360 [ 4195.242936][ T253] netlink_unicast+0x449/0x710 [ 4195.242936][ T253] netlink_sendmsg+0x723/0xbe0 [ 4195.242936][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4195.242936][ T253] ___sys_sendmsg+0xee/0x170 [ 4195.242936][ T253] __sys_sendmsg+0xcd/0x170 [ 4195.242936][ T253] do_syscall_64+0xc6/0x1e0 [ 4195.242936][ T253] [ 4195.246401][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4195.246401][ T253] netdev_get_by_index+0x5e/0x80 [ 4195.246401][ T253] fib6_nh_init+0x3d8/0x1580 [ 4195.246401][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4195.246401][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4195.246401][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4195.246401][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4195.246401][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4195.246401][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4195.246401][ T253] addrconf_dad_begin+0x310/0x670 [ 4195.246401][ T253] addrconf_dad_work+0x10b/0xab0 [ 4195.246401][ T253] process_one_work+0x84d/0x18a0 [ 4195.246401][ T253] worker_thread+0x587/0xd30 [ 4195.246401][ T253] kthread+0x28a/0x350 [ 4195.246401][ T253] ret_from_fork+0x31/0x70 [ 4195.246401][ T253] ret_from_fork_asm+0x1a/0x30 [ 4195.246401][ T253] [ 4195.249720][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4195.249720][ T253] netdev_get_by_index+0x5e/0x80 [ 4195.249720][ T253] fib6_nh_init+0x3d8/0x1580 [ 4195.249720][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4195.249720][ T253] ip6_route_add+0x1c/0x140 [ 4195.249720][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4195.249720][ T253] inet6_addr_add+0x4f8/0xa40 [ 4195.249720][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4195.249720][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4195.249720][ T253] netlink_rcv_skb+0x130/0x360 [ 4195.249720][ T253] netlink_unicast+0x449/0x710 [ 4195.249720][ T253] netlink_sendmsg+0x723/0xbe0 [ 4195.249720][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4195.249720][ T253] ___sys_sendmsg+0xee/0x170 [ 4195.249720][ T253] __sys_sendmsg+0xcd/0x170 [ 4195.249720][ T253] do_syscall_64+0xc6/0x1e0 [ 4195.249720][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4195.249720][ T253] [ 4195.253298][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4195.253298][ T253] netdev_get_by_index+0x5e/0x80 [ 4195.253298][ T253] fib6_nh_init+0x3d8/0x1580 [ 4195.253298][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4195.253298][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4195.253298][ T253] ipv6_add_addr+0x411/0x2000 [ 4195.253298][ T253] inet6_addr_add+0x30e/0xa40 [ 4195.253298][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4195.253298][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4195.253298][ T253] netlink_rcv_skb+0x130/0x360 [ 4195.253298][ T253] netlink_unicast+0x449/0x710 [ 4195.253298][ T253] netlink_sendmsg+0x723/0xbe0 [ 4195.253298][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4195.253298][ T253] ___sys_sendmsg+0xee/0x170 [ 4195.253298][ T253] __sys_sendmsg+0xcd/0x170 [ 4195.253298][ T253] do_syscall_64+0xc6/0x1e0 [ 4195.253298][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4195.253298][ T253] [ 4195.256817][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4195.256817][ T253] netdev_get_by_index+0x5e/0x80 [ 4195.256817][ T253] fib6_nh_init+0x3d8/0x1580 [ 4195.256817][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4195.256817][ T253] ip6_route_add+0x1c/0x140 [ 4195.256817][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4195.256817][ T253] addrconf_add_dev+0xe2/0x170 [ 4195.256817][ T253] inet6_addr_add+0x12f/0xa40 [ 4195.256817][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4195.256817][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4195.256817][ T253] netlink_rcv_skb+0x130/0x360 [ 4195.256817][ T253] netlink_unicast+0x449/0x710 [ 4195.256817][ T253] netlink_sendmsg+0x723/0xbe0 [ 4195.256817][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4195.256817][ T253] ___sys_sendmsg+0xee/0x170 [ 4195.256817][ T253] __sys_sendmsg+0xcd/0x170 [ 4195.256817][ T253] do_syscall_64+0xc6/0x1e0 [ 4195.256817][ T253] [ 4195.260342][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4195.260342][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4195.260342][ T253] ipv6_find_idev+0x102/0x170 [ 4195.260342][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4195.260342][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4195.260342][ T253] netlink_rcv_skb+0x130/0x360 [ 4195.260342][ T253] netlink_unicast+0x449/0x710 [ 4195.260342][ T253] netlink_sendmsg+0x723/0xbe0 [ 4195.260342][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4195.260342][ T253] ___sys_sendmsg+0xee/0x170 [ 4195.260342][ T253] __sys_sendmsg+0xcd/0x170 [ 4195.260342][ T253] do_syscall_64+0xc6/0x1e0 [ 4195.260342][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4195.260342][ T253] [ 4195.263062][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4195.263062][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4195.263062][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4195.263062][ T253] ipv6_find_idev+0x102/0x170 [ 4195.263062][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4195.263062][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4195.263062][ T253] netlink_rcv_skb+0x130/0x360 [ 4195.263062][ T253] netlink_unicast+0x449/0x710 [ 4195.263062][ T253] netlink_sendmsg+0x723/0xbe0 [ 4195.263062][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4195.263062][ T253] ___sys_sendmsg+0xee/0x170 [ 4195.263062][ T253] __sys_sendmsg+0xcd/0x170 [ 4195.263062][ T253] do_syscall_64+0xc6/0x1e0 [ 4195.263062][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4195.263062][ T253] [ 4205.506309][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4205.506786][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4205.506786][ T253] dst_init+0x84/0x4a0 [ 4205.506786][ T253] dst_alloc+0x97/0x150 [ 4205.506786][ T253] ip6_dst_alloc+0x23/0x90 [ 4205.506786][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4205.506786][ T253] ip6_pol_route+0x56f/0x840 [ 4205.506786][ T253] fib6_rule_lookup+0x334/0x630 [ 4205.506786][ T253] ip6_route_output_flags+0x259/0x480 [ 4205.506786][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4205.506786][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4205.506786][ T253] netlink_rcv_skb+0x130/0x360 [ 4205.506786][ T253] netlink_unicast+0x449/0x710 [ 4205.506786][ T253] netlink_sendmsg+0x723/0xbe0 [ 4205.506786][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4205.506786][ T253] ___sys_sendmsg+0xee/0x170 [ 4205.506786][ T253] __sys_sendmsg+0xcd/0x170 [ 4205.506786][ T253] do_syscall_64+0xc6/0x1e0 [ 4205.506786][ T253] [ 4205.508987][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4205.508987][ T253] netdev_get_by_index+0x5e/0x80 [ 4205.508987][ T253] fib6_nh_init+0x3d8/0x1580 [ 4205.508987][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4205.508987][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4205.508987][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4205.508987][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4205.508987][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4205.508987][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4205.508987][ T253] addrconf_dad_begin+0x310/0x670 [ 4205.508987][ T253] addrconf_dad_work+0x10b/0xab0 [ 4205.508987][ T253] process_one_work+0x84d/0x18a0 [ 4205.508987][ T253] worker_thread+0x587/0xd30 [ 4205.508987][ T253] kthread+0x28a/0x350 [ 4205.508987][ T253] ret_from_fork+0x31/0x70 [ 4205.508987][ T253] ret_from_fork_asm+0x1a/0x30 [ 4205.508987][ T253] [ 4205.511144][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4205.511144][ T253] netdev_get_by_index+0x5e/0x80 [ 4205.511144][ T253] fib6_nh_init+0x3d8/0x1580 [ 4205.511144][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4205.511144][ T253] ip6_route_add+0x1c/0x140 [ 4205.511144][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4205.511144][ T253] inet6_addr_add+0x4f8/0xa40 [ 4205.511144][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4205.511144][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4205.511144][ T253] netlink_rcv_skb+0x130/0x360 [ 4205.511144][ T253] netlink_unicast+0x449/0x710 [ 4205.511144][ T253] netlink_sendmsg+0x723/0xbe0 [ 4205.511144][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4205.511144][ T253] ___sys_sendmsg+0xee/0x170 [ 4205.511144][ T253] __sys_sendmsg+0xcd/0x170 [ 4205.511144][ T253] do_syscall_64+0xc6/0x1e0 [ 4205.511144][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4205.511144][ T253] [ 4205.513383][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4205.513383][ T253] netdev_get_by_index+0x5e/0x80 [ 4205.513383][ T253] fib6_nh_init+0x3d8/0x1580 [ 4205.513383][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4205.513383][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4205.513383][ T253] ipv6_add_addr+0x411/0x2000 [ 4205.513383][ T253] inet6_addr_add+0x30e/0xa40 [ 4205.513383][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4205.513383][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4205.513383][ T253] netlink_rcv_skb+0x130/0x360 [ 4205.513383][ T253] netlink_unicast+0x449/0x710 [ 4205.513383][ T253] netlink_sendmsg+0x723/0xbe0 [ 4205.513383][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4205.513383][ T253] ___sys_sendmsg+0xee/0x170 [ 4205.513383][ T253] __sys_sendmsg+0xcd/0x170 [ 4205.513383][ T253] do_syscall_64+0xc6/0x1e0 [ 4205.513383][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4205.513383][ T253] [ 4205.515623][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4205.515623][ T253] netdev_get_by_index+0x5e/0x80 [ 4205.515623][ T253] fib6_nh_init+0x3d8/0x1580 [ 4205.515623][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4205.515623][ T253] ip6_route_add+0x1c/0x140 [ 4205.515623][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4205.515623][ T253] addrconf_add_dev+0xe2/0x170 [ 4205.515623][ T253] inet6_addr_add+0x12f/0xa40 [ 4205.515623][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4205.515623][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4205.515623][ T253] netlink_rcv_skb+0x130/0x360 [ 4205.515623][ T253] netlink_unicast+0x449/0x710 [ 4205.515623][ T253] netlink_sendmsg+0x723/0xbe0 [ 4205.515623][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4205.515623][ T253] ___sys_sendmsg+0xee/0x170 [ 4205.515623][ T253] __sys_sendmsg+0xcd/0x170 [ 4205.515623][ T253] do_syscall_64+0xc6/0x1e0 [ 4205.515623][ T253] [ 4205.517817][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4205.517817][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4205.517817][ T253] ipv6_find_idev+0x102/0x170 [ 4205.517817][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4205.517817][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4205.517817][ T253] netlink_rcv_skb+0x130/0x360 [ 4205.517817][ T253] netlink_unicast+0x449/0x710 [ 4205.517817][ T253] netlink_sendmsg+0x723/0xbe0 [ 4205.517817][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4205.517817][ T253] ___sys_sendmsg+0xee/0x170 [ 4205.517817][ T253] __sys_sendmsg+0xcd/0x170 [ 4205.517817][ T253] do_syscall_64+0xc6/0x1e0 [ 4205.517817][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4205.517817][ T253] [ 4205.519536][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4205.519536][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4205.519536][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4205.519536][ T253] ipv6_find_idev+0x102/0x170 [ 4205.519536][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4205.519536][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4205.519536][ T253] netlink_rcv_skb+0x130/0x360 [ 4205.519536][ T253] netlink_unicast+0x449/0x710 [ 4205.519536][ T253] netlink_sendmsg+0x723/0xbe0 [ 4205.519536][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4205.519536][ T253] ___sys_sendmsg+0xee/0x170 [ 4205.519536][ T253] __sys_sendmsg+0xcd/0x170 [ 4205.519536][ T253] do_syscall_64+0xc6/0x1e0 [ 4205.519536][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4205.519536][ T253] [ 4215.618311][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4215.618806][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4215.618806][ T253] dst_init+0x84/0x4a0 [ 4215.618806][ T253] dst_alloc+0x97/0x150 [ 4215.618806][ T253] ip6_dst_alloc+0x23/0x90 [ 4215.618806][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4215.618806][ T253] ip6_pol_route+0x56f/0x840 [ 4215.618806][ T253] fib6_rule_lookup+0x334/0x630 [ 4215.618806][ T253] ip6_route_output_flags+0x259/0x480 [ 4215.618806][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4215.618806][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4215.618806][ T253] netlink_rcv_skb+0x130/0x360 [ 4215.618806][ T253] netlink_unicast+0x449/0x710 [ 4215.618806][ T253] netlink_sendmsg+0x723/0xbe0 [ 4215.618806][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4215.618806][ T253] ___sys_sendmsg+0xee/0x170 [ 4215.618806][ T253] __sys_sendmsg+0xcd/0x170 [ 4215.618806][ T253] do_syscall_64+0xc6/0x1e0 [ 4215.618806][ T253] [ 4215.621539][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4215.621539][ T253] netdev_get_by_index+0x5e/0x80 [ 4215.621539][ T253] fib6_nh_init+0x3d8/0x1580 [ 4215.621539][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4215.621539][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4215.621539][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4215.621539][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4215.621539][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4215.621539][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4215.621539][ T253] addrconf_dad_begin+0x310/0x670 [ 4215.621539][ T253] addrconf_dad_work+0x10b/0xab0 [ 4215.621539][ T253] process_one_work+0x84d/0x18a0 [ 4215.621539][ T253] worker_thread+0x587/0xd30 [ 4215.621539][ T253] kthread+0x28a/0x350 [ 4215.621539][ T253] ret_from_fork+0x31/0x70 [ 4215.621539][ T253] ret_from_fork_asm+0x1a/0x30 [ 4215.621539][ T253] [ 4215.623700][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4215.623700][ T253] netdev_get_by_index+0x5e/0x80 [ 4215.623700][ T253] fib6_nh_init+0x3d8/0x1580 [ 4215.623700][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4215.623700][ T253] ip6_route_add+0x1c/0x140 [ 4215.623700][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4215.623700][ T253] inet6_addr_add+0x4f8/0xa40 [ 4215.623700][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4215.623700][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4215.623700][ T253] netlink_rcv_skb+0x130/0x360 [ 4215.623700][ T253] netlink_unicast+0x449/0x710 [ 4215.623700][ T253] netlink_sendmsg+0x723/0xbe0 [ 4215.623700][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4215.623700][ T253] ___sys_sendmsg+0xee/0x170 [ 4215.623700][ T253] __sys_sendmsg+0xcd/0x170 [ 4215.623700][ T253] do_syscall_64+0xc6/0x1e0 [ 4215.623700][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4215.623700][ T253] [ 4215.625932][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4215.625932][ T253] netdev_get_by_index+0x5e/0x80 [ 4215.625932][ T253] fib6_nh_init+0x3d8/0x1580 [ 4215.625932][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4215.625932][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4215.625932][ T253] ipv6_add_addr+0x411/0x2000 [ 4215.625932][ T253] inet6_addr_add+0x30e/0xa40 [ 4215.625932][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4215.625932][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4215.625932][ T253] netlink_rcv_skb+0x130/0x360 [ 4215.625932][ T253] netlink_unicast+0x449/0x710 [ 4215.625932][ T253] netlink_sendmsg+0x723/0xbe0 [ 4215.625932][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4215.625932][ T253] ___sys_sendmsg+0xee/0x170 [ 4215.625932][ T253] __sys_sendmsg+0xcd/0x170 [ 4215.625932][ T253] do_syscall_64+0xc6/0x1e0 [ 4215.625932][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4215.625932][ T253] [ 4215.628178][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4215.628178][ T253] netdev_get_by_index+0x5e/0x80 [ 4215.628178][ T253] fib6_nh_init+0x3d8/0x1580 [ 4215.628178][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4215.628178][ T253] ip6_route_add+0x1c/0x140 [ 4215.628178][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4215.628178][ T253] addrconf_add_dev+0xe2/0x170 [ 4215.628178][ T253] inet6_addr_add+0x12f/0xa40 [ 4215.628178][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4215.628178][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4215.628178][ T253] netlink_rcv_skb+0x130/0x360 [ 4215.628178][ T253] netlink_unicast+0x449/0x710 [ 4215.628178][ T253] netlink_sendmsg+0x723/0xbe0 [ 4215.628178][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4215.628178][ T253] ___sys_sendmsg+0xee/0x170 [ 4215.628178][ T253] __sys_sendmsg+0xcd/0x170 [ 4215.628178][ T253] do_syscall_64+0xc6/0x1e0 [ 4215.628178][ T253] [ 4215.630387][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4215.630387][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4215.630387][ T253] ipv6_find_idev+0x102/0x170 [ 4215.630387][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4215.630387][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4215.630387][ T253] netlink_rcv_skb+0x130/0x360 [ 4215.630387][ T253] netlink_unicast+0x449/0x710 [ 4215.630387][ T253] netlink_sendmsg+0x723/0xbe0 [ 4215.630387][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4215.630387][ T253] ___sys_sendmsg+0xee/0x170 [ 4215.630387][ T253] __sys_sendmsg+0xcd/0x170 [ 4215.630387][ T253] do_syscall_64+0xc6/0x1e0 [ 4215.630387][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4215.630387][ T253] [ 4215.632109][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4215.632109][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4215.632109][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4215.632109][ T253] ipv6_find_idev+0x102/0x170 [ 4215.632109][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4215.632109][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4215.632109][ T253] netlink_rcv_skb+0x130/0x360 [ 4215.632109][ T253] netlink_unicast+0x449/0x710 [ 4215.632109][ T253] netlink_sendmsg+0x723/0xbe0 [ 4215.632109][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4215.632109][ T253] ___sys_sendmsg+0xee/0x170 [ 4215.632109][ T253] __sys_sendmsg+0xcd/0x170 [ 4215.632109][ T253] do_syscall_64+0xc6/0x1e0 [ 4215.632109][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4215.632109][ T253] [ 4225.882302][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4225.882792][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4225.882792][ T253] dst_init+0x84/0x4a0 [ 4225.882792][ T253] dst_alloc+0x97/0x150 [ 4225.882792][ T253] ip6_dst_alloc+0x23/0x90 [ 4225.882792][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4225.882792][ T253] ip6_pol_route+0x56f/0x840 [ 4225.882792][ T253] fib6_rule_lookup+0x334/0x630 [ 4225.882792][ T253] ip6_route_output_flags+0x259/0x480 [ 4225.882792][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4225.882792][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4225.882792][ T253] netlink_rcv_skb+0x130/0x360 [ 4225.882792][ T253] netlink_unicast+0x449/0x710 [ 4225.882792][ T253] netlink_sendmsg+0x723/0xbe0 [ 4225.882792][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4225.882792][ T253] ___sys_sendmsg+0xee/0x170 [ 4225.882792][ T253] __sys_sendmsg+0xcd/0x170 [ 4225.882792][ T253] do_syscall_64+0xc6/0x1e0 [ 4225.882792][ T253] [ 4225.885025][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4225.885025][ T253] netdev_get_by_index+0x5e/0x80 [ 4225.885025][ T253] fib6_nh_init+0x3d8/0x1580 [ 4225.885025][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4225.885025][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4225.885025][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4225.885025][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4225.885025][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4225.885025][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4225.885025][ T253] addrconf_dad_begin+0x310/0x670 [ 4225.885025][ T253] addrconf_dad_work+0x10b/0xab0 [ 4225.885025][ T253] process_one_work+0x84d/0x18a0 [ 4225.885025][ T253] worker_thread+0x587/0xd30 [ 4225.885025][ T253] kthread+0x28a/0x350 [ 4225.885025][ T253] ret_from_fork+0x31/0x70 [ 4225.885025][ T253] ret_from_fork_asm+0x1a/0x30 [ 4225.885025][ T253] [ 4225.887608][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4225.887608][ T253] netdev_get_by_index+0x5e/0x80 [ 4225.887608][ T253] fib6_nh_init+0x3d8/0x1580 [ 4225.887608][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4225.887608][ T253] ip6_route_add+0x1c/0x140 [ 4225.887608][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4225.887608][ T253] inet6_addr_add+0x4f8/0xa40 [ 4225.887608][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4225.887608][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4225.887608][ T253] netlink_rcv_skb+0x130/0x360 [ 4225.887608][ T253] netlink_unicast+0x449/0x710 [ 4225.887608][ T253] netlink_sendmsg+0x723/0xbe0 [ 4225.887608][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4225.887608][ T253] ___sys_sendmsg+0xee/0x170 [ 4225.887608][ T253] __sys_sendmsg+0xcd/0x170 [ 4225.887608][ T253] do_syscall_64+0xc6/0x1e0 [ 4225.887608][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4225.887608][ T253] [ 4225.889885][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4225.889885][ T253] netdev_get_by_index+0x5e/0x80 [ 4225.889885][ T253] fib6_nh_init+0x3d8/0x1580 [ 4225.889885][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4225.889885][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4225.889885][ T253] ipv6_add_addr+0x411/0x2000 [ 4225.889885][ T253] inet6_addr_add+0x30e/0xa40 [ 4225.889885][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4225.889885][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4225.889885][ T253] netlink_rcv_skb+0x130/0x360 [ 4225.889885][ T253] netlink_unicast+0x449/0x710 [ 4225.889885][ T253] netlink_sendmsg+0x723/0xbe0 [ 4225.889885][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4225.889885][ T253] ___sys_sendmsg+0xee/0x170 [ 4225.889885][ T253] __sys_sendmsg+0xcd/0x170 [ 4225.889885][ T253] do_syscall_64+0xc6/0x1e0 [ 4225.889885][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4225.889885][ T253] [ 4225.892149][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4225.892149][ T253] netdev_get_by_index+0x5e/0x80 [ 4225.892149][ T253] fib6_nh_init+0x3d8/0x1580 [ 4225.892149][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4225.892149][ T253] ip6_route_add+0x1c/0x140 [ 4225.892149][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4225.892149][ T253] addrconf_add_dev+0xe2/0x170 [ 4225.892149][ T253] inet6_addr_add+0x12f/0xa40 [ 4225.892149][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4225.892149][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4225.892149][ T253] netlink_rcv_skb+0x130/0x360 [ 4225.892149][ T253] netlink_unicast+0x449/0x710 [ 4225.892149][ T253] netlink_sendmsg+0x723/0xbe0 [ 4225.892149][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4225.892149][ T253] ___sys_sendmsg+0xee/0x170 [ 4225.892149][ T253] __sys_sendmsg+0xcd/0x170 [ 4225.892149][ T253] do_syscall_64+0xc6/0x1e0 [ 4225.892149][ T253] [ 4225.894376][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4225.894376][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4225.894376][ T253] ipv6_find_idev+0x102/0x170 [ 4225.894376][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4225.894376][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4225.894376][ T253] netlink_rcv_skb+0x130/0x360 [ 4225.894376][ T253] netlink_unicast+0x449/0x710 [ 4225.894376][ T253] netlink_sendmsg+0x723/0xbe0 [ 4225.894376][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4225.894376][ T253] ___sys_sendmsg+0xee/0x170 [ 4225.894376][ T253] __sys_sendmsg+0xcd/0x170 [ 4225.894376][ T253] do_syscall_64+0xc6/0x1e0 [ 4225.894376][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4225.894376][ T253] [ 4225.896117][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4225.896117][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4225.896117][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4225.896117][ T253] ipv6_find_idev+0x102/0x170 [ 4225.896117][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4225.896117][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4225.896117][ T253] netlink_rcv_skb+0x130/0x360 [ 4225.896117][ T253] netlink_unicast+0x449/0x710 [ 4225.896117][ T253] netlink_sendmsg+0x723/0xbe0 [ 4225.896117][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4225.896117][ T253] ___sys_sendmsg+0xee/0x170 [ 4225.896117][ T253] __sys_sendmsg+0xcd/0x170 [ 4225.896117][ T253] do_syscall_64+0xc6/0x1e0 [ 4225.896117][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4225.896117][ T253] [ 4235.954240][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4235.954729][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4235.954729][ T253] dst_init+0x84/0x4a0 [ 4235.954729][ T253] dst_alloc+0x97/0x150 [ 4235.954729][ T253] ip6_dst_alloc+0x23/0x90 [ 4235.954729][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4235.954729][ T253] ip6_pol_route+0x56f/0x840 [ 4235.954729][ T253] fib6_rule_lookup+0x334/0x630 [ 4235.954729][ T253] ip6_route_output_flags+0x259/0x480 [ 4235.954729][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4235.954729][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4235.954729][ T253] netlink_rcv_skb+0x130/0x360 [ 4235.954729][ T253] netlink_unicast+0x449/0x710 [ 4235.954729][ T253] netlink_sendmsg+0x723/0xbe0 [ 4235.954729][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4235.954729][ T253] ___sys_sendmsg+0xee/0x170 [ 4235.954729][ T253] __sys_sendmsg+0xcd/0x170 [ 4235.954729][ T253] do_syscall_64+0xc6/0x1e0 [ 4235.954729][ T253] [ 4235.956943][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4235.956943][ T253] netdev_get_by_index+0x5e/0x80 [ 4235.956943][ T253] fib6_nh_init+0x3d8/0x1580 [ 4235.956943][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4235.956943][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4235.956943][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4235.956943][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4235.956943][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4235.956943][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4235.956943][ T253] addrconf_dad_begin+0x310/0x670 [ 4235.956943][ T253] addrconf_dad_work+0x10b/0xab0 [ 4235.956943][ T253] process_one_work+0x84d/0x18a0 [ 4235.956943][ T253] worker_thread+0x587/0xd30 [ 4235.956943][ T253] kthread+0x28a/0x350 [ 4235.956943][ T253] ret_from_fork+0x31/0x70 [ 4235.956943][ T253] ret_from_fork_asm+0x1a/0x30 [ 4235.956943][ T253] [ 4235.959102][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4235.959102][ T253] netdev_get_by_index+0x5e/0x80 [ 4235.959102][ T253] fib6_nh_init+0x3d8/0x1580 [ 4235.959102][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4235.959102][ T253] ip6_route_add+0x1c/0x140 [ 4235.959102][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4235.959102][ T253] inet6_addr_add+0x4f8/0xa40 [ 4235.959102][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4235.959102][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4235.959102][ T253] netlink_rcv_skb+0x130/0x360 [ 4235.959102][ T253] netlink_unicast+0x449/0x710 [ 4235.959102][ T253] netlink_sendmsg+0x723/0xbe0 [ 4235.959102][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4235.959102][ T253] ___sys_sendmsg+0xee/0x170 [ 4235.959102][ T253] __sys_sendmsg+0xcd/0x170 [ 4235.959102][ T253] do_syscall_64+0xc6/0x1e0 [ 4235.959102][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4235.959102][ T253] [ 4235.961360][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4235.961360][ T253] netdev_get_by_index+0x5e/0x80 [ 4235.961360][ T253] fib6_nh_init+0x3d8/0x1580 [ 4235.961360][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4235.961360][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4235.961360][ T253] ipv6_add_addr+0x411/0x2000 [ 4235.961360][ T253] inet6_addr_add+0x30e/0xa40 [ 4235.961360][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4235.961360][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4235.961360][ T253] netlink_rcv_skb+0x130/0x360 [ 4235.961360][ T253] netlink_unicast+0x449/0x710 [ 4235.961360][ T253] netlink_sendmsg+0x723/0xbe0 [ 4235.961360][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4235.961360][ T253] ___sys_sendmsg+0xee/0x170 [ 4235.961360][ T253] __sys_sendmsg+0xcd/0x170 [ 4235.961360][ T253] do_syscall_64+0xc6/0x1e0 [ 4235.961360][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4235.961360][ T253] [ 4235.963615][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4235.963615][ T253] netdev_get_by_index+0x5e/0x80 [ 4235.963615][ T253] fib6_nh_init+0x3d8/0x1580 [ 4235.963615][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4235.963615][ T253] ip6_route_add+0x1c/0x140 [ 4235.963615][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4235.963615][ T253] addrconf_add_dev+0xe2/0x170 [ 4235.963615][ T253] inet6_addr_add+0x12f/0xa40 [ 4235.963615][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4235.963615][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4235.963615][ T253] netlink_rcv_skb+0x130/0x360 [ 4235.963615][ T253] netlink_unicast+0x449/0x710 [ 4235.963615][ T253] netlink_sendmsg+0x723/0xbe0 [ 4235.963615][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4235.963615][ T253] ___sys_sendmsg+0xee/0x170 [ 4235.963615][ T253] __sys_sendmsg+0xcd/0x170 [ 4235.963615][ T253] do_syscall_64+0xc6/0x1e0 [ 4235.963615][ T253] [ 4235.965838][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4235.965838][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4235.965838][ T253] ipv6_find_idev+0x102/0x170 [ 4235.965838][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4235.965838][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4235.965838][ T253] netlink_rcv_skb+0x130/0x360 [ 4235.965838][ T253] netlink_unicast+0x449/0x710 [ 4235.965838][ T253] netlink_sendmsg+0x723/0xbe0 [ 4235.965838][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4235.965838][ T253] ___sys_sendmsg+0xee/0x170 [ 4235.965838][ T253] __sys_sendmsg+0xcd/0x170 [ 4235.965838][ T253] do_syscall_64+0xc6/0x1e0 [ 4235.965838][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4235.965838][ T253] [ 4235.967575][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4235.967575][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4235.967575][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4235.967575][ T253] ipv6_find_idev+0x102/0x170 [ 4235.967575][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4235.967575][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4235.967575][ T253] netlink_rcv_skb+0x130/0x360 [ 4235.967575][ T253] netlink_unicast+0x449/0x710 [ 4235.967575][ T253] netlink_sendmsg+0x723/0xbe0 [ 4235.967575][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4235.967575][ T253] ___sys_sendmsg+0xee/0x170 [ 4235.967575][ T253] __sys_sendmsg+0xcd/0x170 [ 4235.967575][ T253] do_syscall_64+0xc6/0x1e0 [ 4235.967575][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4235.967575][ T253] [ 4246.210251][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4246.210739][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4246.210739][ T253] dst_init+0x84/0x4a0 [ 4246.210739][ T253] dst_alloc+0x97/0x150 [ 4246.210739][ T253] ip6_dst_alloc+0x23/0x90 [ 4246.210739][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4246.210739][ T253] ip6_pol_route+0x56f/0x840 [ 4246.210739][ T253] fib6_rule_lookup+0x334/0x630 [ 4246.210739][ T253] ip6_route_output_flags+0x259/0x480 [ 4246.210739][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4246.210739][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4246.210739][ T253] netlink_rcv_skb+0x130/0x360 [ 4246.210739][ T253] netlink_unicast+0x449/0x710 [ 4246.210739][ T253] netlink_sendmsg+0x723/0xbe0 [ 4246.210739][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4246.210739][ T253] ___sys_sendmsg+0xee/0x170 [ 4246.210739][ T253] __sys_sendmsg+0xcd/0x170 [ 4246.210739][ T253] do_syscall_64+0xc6/0x1e0 [ 4246.210739][ T253] [ 4246.212934][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4246.212934][ T253] netdev_get_by_index+0x5e/0x80 [ 4246.212934][ T253] fib6_nh_init+0x3d8/0x1580 [ 4246.212934][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4246.212934][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4246.212934][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4246.212934][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4246.212934][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4246.212934][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4246.212934][ T253] addrconf_dad_begin+0x310/0x670 [ 4246.212934][ T253] addrconf_dad_work+0x10b/0xab0 [ 4246.212934][ T253] process_one_work+0x84d/0x18a0 [ 4246.212934][ T253] worker_thread+0x587/0xd30 [ 4246.212934][ T253] kthread+0x28a/0x350 [ 4246.212934][ T253] ret_from_fork+0x31/0x70 [ 4246.212934][ T253] ret_from_fork_asm+0x1a/0x30 [ 4246.212934][ T253] [ 4246.215109][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4246.215109][ T253] netdev_get_by_index+0x5e/0x80 [ 4246.215109][ T253] fib6_nh_init+0x3d8/0x1580 [ 4246.215109][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4246.215109][ T253] ip6_route_add+0x1c/0x140 [ 4246.215109][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4246.215109][ T253] inet6_addr_add+0x4f8/0xa40 [ 4246.215109][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4246.215109][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4246.215109][ T253] netlink_rcv_skb+0x130/0x360 [ 4246.215109][ T253] netlink_unicast+0x449/0x710 [ 4246.215109][ T253] netlink_sendmsg+0x723/0xbe0 [ 4246.215109][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4246.215109][ T253] ___sys_sendmsg+0xee/0x170 [ 4246.215109][ T253] __sys_sendmsg+0xcd/0x170 [ 4246.215109][ T253] do_syscall_64+0xc6/0x1e0 [ 4246.215109][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4246.215109][ T253] [ 4246.217345][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4246.217345][ T253] netdev_get_by_index+0x5e/0x80 [ 4246.217345][ T253] fib6_nh_init+0x3d8/0x1580 [ 4246.217345][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4246.217345][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4246.217345][ T253] ipv6_add_addr+0x411/0x2000 [ 4246.217345][ T253] inet6_addr_add+0x30e/0xa40 [ 4246.217345][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4246.217345][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4246.217345][ T253] netlink_rcv_skb+0x130/0x360 [ 4246.217345][ T253] netlink_unicast+0x449/0x710 [ 4246.217345][ T253] netlink_sendmsg+0x723/0xbe0 [ 4246.217345][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4246.217345][ T253] ___sys_sendmsg+0xee/0x170 [ 4246.217345][ T253] __sys_sendmsg+0xcd/0x170 [ 4246.217345][ T253] do_syscall_64+0xc6/0x1e0 [ 4246.217345][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4246.217345][ T253] [ 4246.219591][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4246.219591][ T253] netdev_get_by_index+0x5e/0x80 [ 4246.219591][ T253] fib6_nh_init+0x3d8/0x1580 [ 4246.219591][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4246.219591][ T253] ip6_route_add+0x1c/0x140 [ 4246.219591][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4246.219591][ T253] addrconf_add_dev+0xe2/0x170 [ 4246.219591][ T253] inet6_addr_add+0x12f/0xa40 [ 4246.219591][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4246.219591][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4246.219591][ T253] netlink_rcv_skb+0x130/0x360 [ 4246.219591][ T253] netlink_unicast+0x449/0x710 [ 4246.219591][ T253] netlink_sendmsg+0x723/0xbe0 [ 4246.219591][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4246.219591][ T253] ___sys_sendmsg+0xee/0x170 [ 4246.219591][ T253] __sys_sendmsg+0xcd/0x170 [ 4246.219591][ T253] do_syscall_64+0xc6/0x1e0 [ 4246.219591][ T253] [ 4246.221797][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4246.221797][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4246.221797][ T253] ipv6_find_idev+0x102/0x170 [ 4246.221797][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4246.221797][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4246.221797][ T253] netlink_rcv_skb+0x130/0x360 [ 4246.221797][ T253] netlink_unicast+0x449/0x710 [ 4246.221797][ T253] netlink_sendmsg+0x723/0xbe0 [ 4246.221797][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4246.221797][ T253] ___sys_sendmsg+0xee/0x170 [ 4246.221797][ T253] __sys_sendmsg+0xcd/0x170 [ 4246.221797][ T253] do_syscall_64+0xc6/0x1e0 [ 4246.221797][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4246.221797][ T253] [ 4246.223518][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4246.223518][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4246.223518][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4246.223518][ T253] ipv6_find_idev+0x102/0x170 [ 4246.223518][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4246.223518][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4246.223518][ T253] netlink_rcv_skb+0x130/0x360 [ 4246.223518][ T253] netlink_unicast+0x449/0x710 [ 4246.223518][ T253] netlink_sendmsg+0x723/0xbe0 [ 4246.223518][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4246.223518][ T253] ___sys_sendmsg+0xee/0x170 [ 4246.223518][ T253] __sys_sendmsg+0xcd/0x170 [ 4246.223518][ T253] do_syscall_64+0xc6/0x1e0 [ 4246.223518][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4246.223518][ T253] [ 4256.466247][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4256.466750][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4256.466750][ T253] dst_init+0x84/0x4a0 [ 4256.466750][ T253] dst_alloc+0x97/0x150 [ 4256.466750][ T253] ip6_dst_alloc+0x23/0x90 [ 4256.466750][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4256.466750][ T253] ip6_pol_route+0x56f/0x840 [ 4256.466750][ T253] fib6_rule_lookup+0x334/0x630 [ 4256.466750][ T253] ip6_route_output_flags+0x259/0x480 [ 4256.466750][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4256.466750][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4256.466750][ T253] netlink_rcv_skb+0x130/0x360 [ 4256.466750][ T253] netlink_unicast+0x449/0x710 [ 4256.466750][ T253] netlink_sendmsg+0x723/0xbe0 [ 4256.466750][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4256.466750][ T253] ___sys_sendmsg+0xee/0x170 [ 4256.466750][ T253] __sys_sendmsg+0xcd/0x170 [ 4256.466750][ T253] do_syscall_64+0xc6/0x1e0 [ 4256.466750][ T253] [ 4256.468942][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4256.468942][ T253] netdev_get_by_index+0x5e/0x80 [ 4256.468942][ T253] fib6_nh_init+0x3d8/0x1580 [ 4256.468942][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4256.468942][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4256.468942][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4256.468942][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4256.468942][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4256.468942][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4256.468942][ T253] addrconf_dad_begin+0x310/0x670 [ 4256.468942][ T253] addrconf_dad_work+0x10b/0xab0 [ 4256.468942][ T253] process_one_work+0x84d/0x18a0 [ 4256.468942][ T253] worker_thread+0x587/0xd30 [ 4256.468942][ T253] kthread+0x28a/0x350 [ 4256.468942][ T253] ret_from_fork+0x31/0x70 [ 4256.468942][ T253] ret_from_fork_asm+0x1a/0x30 [ 4256.468942][ T253] [ 4256.471094][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4256.471094][ T253] netdev_get_by_index+0x5e/0x80 [ 4256.471094][ T253] fib6_nh_init+0x3d8/0x1580 [ 4256.471094][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4256.471094][ T253] ip6_route_add+0x1c/0x140 [ 4256.471094][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4256.471094][ T253] inet6_addr_add+0x4f8/0xa40 [ 4256.471094][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4256.471094][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4256.471094][ T253] netlink_rcv_skb+0x130/0x360 [ 4256.471094][ T253] netlink_unicast+0x449/0x710 [ 4256.471094][ T253] netlink_sendmsg+0x723/0xbe0 [ 4256.471094][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4256.471094][ T253] ___sys_sendmsg+0xee/0x170 [ 4256.471094][ T253] __sys_sendmsg+0xcd/0x170 [ 4256.471094][ T253] do_syscall_64+0xc6/0x1e0 [ 4256.471094][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4256.471094][ T253] [ 4256.473337][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4256.473337][ T253] netdev_get_by_index+0x5e/0x80 [ 4256.473337][ T253] fib6_nh_init+0x3d8/0x1580 [ 4256.473337][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4256.473337][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4256.473337][ T253] ipv6_add_addr+0x411/0x2000 [ 4256.473337][ T253] inet6_addr_add+0x30e/0xa40 [ 4256.473337][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4256.473337][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4256.473337][ T253] netlink_rcv_skb+0x130/0x360 [ 4256.473337][ T253] netlink_unicast+0x449/0x710 [ 4256.473337][ T253] netlink_sendmsg+0x723/0xbe0 [ 4256.473337][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4256.473337][ T253] ___sys_sendmsg+0xee/0x170 [ 4256.473337][ T253] __sys_sendmsg+0xcd/0x170 [ 4256.473337][ T253] do_syscall_64+0xc6/0x1e0 [ 4256.473337][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4256.473337][ T253] [ 4256.475579][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4256.475579][ T253] netdev_get_by_index+0x5e/0x80 [ 4256.475579][ T253] fib6_nh_init+0x3d8/0x1580 [ 4256.475579][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4256.475579][ T253] ip6_route_add+0x1c/0x140 [ 4256.475579][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4256.475579][ T253] addrconf_add_dev+0xe2/0x170 [ 4256.475579][ T253] inet6_addr_add+0x12f/0xa40 [ 4256.475579][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4256.475579][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4256.475579][ T253] netlink_rcv_skb+0x130/0x360 [ 4256.475579][ T253] netlink_unicast+0x449/0x710 [ 4256.475579][ T253] netlink_sendmsg+0x723/0xbe0 [ 4256.475579][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4256.475579][ T253] ___sys_sendmsg+0xee/0x170 [ 4256.475579][ T253] __sys_sendmsg+0xcd/0x170 [ 4256.475579][ T253] do_syscall_64+0xc6/0x1e0 [ 4256.475579][ T253] [ 4256.477788][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4256.477788][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4256.477788][ T253] ipv6_find_idev+0x102/0x170 [ 4256.477788][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4256.477788][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4256.477788][ T253] netlink_rcv_skb+0x130/0x360 [ 4256.477788][ T253] netlink_unicast+0x449/0x710 [ 4256.477788][ T253] netlink_sendmsg+0x723/0xbe0 [ 4256.477788][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4256.477788][ T253] ___sys_sendmsg+0xee/0x170 [ 4256.477788][ T253] __sys_sendmsg+0xcd/0x170 [ 4256.477788][ T253] do_syscall_64+0xc6/0x1e0 [ 4256.477788][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4256.477788][ T253] [ 4256.479515][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4256.479515][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4256.479515][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4256.479515][ T253] ipv6_find_idev+0x102/0x170 [ 4256.479515][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4256.479515][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4256.479515][ T253] netlink_rcv_skb+0x130/0x360 [ 4256.479515][ T253] netlink_unicast+0x449/0x710 [ 4256.479515][ T253] netlink_sendmsg+0x723/0xbe0 [ 4256.479515][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4256.479515][ T253] ___sys_sendmsg+0xee/0x170 [ 4256.479515][ T253] __sys_sendmsg+0xcd/0x170 [ 4256.479515][ T253] do_syscall_64+0xc6/0x1e0 [ 4256.479515][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4256.479515][ T253] [ 4266.482272][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4266.482759][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4266.482759][ T253] dst_init+0x84/0x4a0 [ 4266.482759][ T253] dst_alloc+0x97/0x150 [ 4266.482759][ T253] ip6_dst_alloc+0x23/0x90 [ 4266.482759][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4266.482759][ T253] ip6_pol_route+0x56f/0x840 [ 4266.482759][ T253] fib6_rule_lookup+0x334/0x630 [ 4266.482759][ T253] ip6_route_output_flags+0x259/0x480 [ 4266.482759][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4266.482759][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4266.482759][ T253] netlink_rcv_skb+0x130/0x360 [ 4266.482759][ T253] netlink_unicast+0x449/0x710 [ 4266.482759][ T253] netlink_sendmsg+0x723/0xbe0 [ 4266.482759][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4266.482759][ T253] ___sys_sendmsg+0xee/0x170 [ 4266.482759][ T253] __sys_sendmsg+0xcd/0x170 [ 4266.482759][ T253] do_syscall_64+0xc6/0x1e0 [ 4266.482759][ T253] [ 4266.484962][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4266.484962][ T253] netdev_get_by_index+0x5e/0x80 [ 4266.484962][ T253] fib6_nh_init+0x3d8/0x1580 [ 4266.484962][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4266.484962][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4266.484962][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4266.484962][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4266.484962][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4266.484962][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4266.484962][ T253] addrconf_dad_begin+0x310/0x670 [ 4266.484962][ T253] addrconf_dad_work+0x10b/0xab0 [ 4266.484962][ T253] process_one_work+0x84d/0x18a0 [ 4266.484962][ T253] worker_thread+0x587/0xd30 [ 4266.484962][ T253] kthread+0x28a/0x350 [ 4266.484962][ T253] ret_from_fork+0x31/0x70 [ 4266.484962][ T253] ret_from_fork_asm+0x1a/0x30 [ 4266.484962][ T253] [ 4266.487102][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4266.487102][ T253] netdev_get_by_index+0x5e/0x80 [ 4266.487102][ T253] fib6_nh_init+0x3d8/0x1580 [ 4266.487102][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4266.487102][ T253] ip6_route_add+0x1c/0x140 [ 4266.487102][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4266.487102][ T253] inet6_addr_add+0x4f8/0xa40 [ 4266.487102][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4266.487102][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4266.487102][ T253] netlink_rcv_skb+0x130/0x360 [ 4266.487102][ T253] netlink_unicast+0x449/0x710 [ 4266.487102][ T253] netlink_sendmsg+0x723/0xbe0 [ 4266.487102][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4266.487102][ T253] ___sys_sendmsg+0xee/0x170 [ 4266.487102][ T253] __sys_sendmsg+0xcd/0x170 [ 4266.487102][ T253] do_syscall_64+0xc6/0x1e0 [ 4266.487102][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4266.487102][ T253] [ 4266.489351][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4266.489351][ T253] netdev_get_by_index+0x5e/0x80 [ 4266.489351][ T253] fib6_nh_init+0x3d8/0x1580 [ 4266.489351][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4266.489351][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4266.489351][ T253] ipv6_add_addr+0x411/0x2000 [ 4266.489351][ T253] inet6_addr_add+0x30e/0xa40 [ 4266.489351][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4266.489351][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4266.489351][ T253] netlink_rcv_skb+0x130/0x360 [ 4266.489351][ T253] netlink_unicast+0x449/0x710 [ 4266.489351][ T253] netlink_sendmsg+0x723/0xbe0 [ 4266.489351][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4266.489351][ T253] ___sys_sendmsg+0xee/0x170 [ 4266.489351][ T253] __sys_sendmsg+0xcd/0x170 [ 4266.489351][ T253] do_syscall_64+0xc6/0x1e0 [ 4266.489351][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4266.489351][ T253] [ 4266.491612][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4266.491612][ T253] netdev_get_by_index+0x5e/0x80 [ 4266.491612][ T253] fib6_nh_init+0x3d8/0x1580 [ 4266.491612][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4266.491612][ T253] ip6_route_add+0x1c/0x140 [ 4266.491612][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4266.491612][ T253] addrconf_add_dev+0xe2/0x170 [ 4266.491612][ T253] inet6_addr_add+0x12f/0xa40 [ 4266.491612][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4266.491612][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4266.491612][ T253] netlink_rcv_skb+0x130/0x360 [ 4266.491612][ T253] netlink_unicast+0x449/0x710 [ 4266.491612][ T253] netlink_sendmsg+0x723/0xbe0 [ 4266.491612][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4266.491612][ T253] ___sys_sendmsg+0xee/0x170 [ 4266.491612][ T253] __sys_sendmsg+0xcd/0x170 [ 4266.491612][ T253] do_syscall_64+0xc6/0x1e0 [ 4266.491612][ T253] [ 4266.493805][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4266.493805][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4266.493805][ T253] ipv6_find_idev+0x102/0x170 [ 4266.493805][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4266.493805][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4266.493805][ T253] netlink_rcv_skb+0x130/0x360 [ 4266.493805][ T253] netlink_unicast+0x449/0x710 [ 4266.493805][ T253] netlink_sendmsg+0x723/0xbe0 [ 4266.493805][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4266.493805][ T253] ___sys_sendmsg+0xee/0x170 [ 4266.493805][ T253] __sys_sendmsg+0xcd/0x170 [ 4266.493805][ T253] do_syscall_64+0xc6/0x1e0 [ 4266.493805][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4266.493805][ T253] [ 4266.495534][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4266.495534][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4266.495534][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4266.495534][ T253] ipv6_find_idev+0x102/0x170 [ 4266.495534][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4266.495534][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4266.495534][ T253] netlink_rcv_skb+0x130/0x360 [ 4266.495534][ T253] netlink_unicast+0x449/0x710 [ 4266.495534][ T253] netlink_sendmsg+0x723/0xbe0 [ 4266.495534][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4266.495534][ T253] ___sys_sendmsg+0xee/0x170 [ 4266.495534][ T253] __sys_sendmsg+0xcd/0x170 [ 4266.495534][ T253] do_syscall_64+0xc6/0x1e0 [ 4266.495534][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4266.495534][ T253] [ 4276.746319][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4276.746813][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4276.746813][ T253] dst_init+0x84/0x4a0 [ 4276.746813][ T253] dst_alloc+0x97/0x150 [ 4276.746813][ T253] ip6_dst_alloc+0x23/0x90 [ 4276.746813][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4276.746813][ T253] ip6_pol_route+0x56f/0x840 [ 4276.746813][ T253] fib6_rule_lookup+0x334/0x630 [ 4276.746813][ T253] ip6_route_output_flags+0x259/0x480 [ 4276.746813][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4276.746813][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4276.746813][ T253] netlink_rcv_skb+0x130/0x360 [ 4276.746813][ T253] netlink_unicast+0x449/0x710 [ 4276.746813][ T253] netlink_sendmsg+0x723/0xbe0 [ 4276.746813][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4276.746813][ T253] ___sys_sendmsg+0xee/0x170 [ 4276.746813][ T253] __sys_sendmsg+0xcd/0x170 [ 4276.746813][ T253] do_syscall_64+0xc6/0x1e0 [ 4276.746813][ T253] [ 4276.749032][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4276.749032][ T253] netdev_get_by_index+0x5e/0x80 [ 4276.749032][ T253] fib6_nh_init+0x3d8/0x1580 [ 4276.749032][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4276.749032][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4276.749032][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4276.749032][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4276.749032][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4276.749032][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4276.749032][ T253] addrconf_dad_begin+0x310/0x670 [ 4276.749032][ T253] addrconf_dad_work+0x10b/0xab0 [ 4276.749032][ T253] process_one_work+0x84d/0x18a0 [ 4276.749032][ T253] worker_thread+0x587/0xd30 [ 4276.749032][ T253] kthread+0x28a/0x350 [ 4276.749032][ T253] ret_from_fork+0x31/0x70 [ 4276.749032][ T253] ret_from_fork_asm+0x1a/0x30 [ 4276.749032][ T253] [ 4276.751192][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4276.751192][ T253] netdev_get_by_index+0x5e/0x80 [ 4276.751192][ T253] fib6_nh_init+0x3d8/0x1580 [ 4276.751192][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4276.751192][ T253] ip6_route_add+0x1c/0x140 [ 4276.751192][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4276.751192][ T253] inet6_addr_add+0x4f8/0xa40 [ 4276.751192][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4276.751192][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4276.751192][ T253] netlink_rcv_skb+0x130/0x360 [ 4276.751192][ T253] netlink_unicast+0x449/0x710 [ 4276.751192][ T253] netlink_sendmsg+0x723/0xbe0 [ 4276.751192][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4276.751192][ T253] ___sys_sendmsg+0xee/0x170 [ 4276.751192][ T253] __sys_sendmsg+0xcd/0x170 [ 4276.751192][ T253] do_syscall_64+0xc6/0x1e0 [ 4276.751192][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4276.751192][ T253] [ 4276.753437][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4276.753437][ T253] netdev_get_by_index+0x5e/0x80 [ 4276.753437][ T253] fib6_nh_init+0x3d8/0x1580 [ 4276.753437][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4276.753437][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4276.753437][ T253] ipv6_add_addr+0x411/0x2000 [ 4276.753437][ T253] inet6_addr_add+0x30e/0xa40 [ 4276.753437][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4276.753437][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4276.753437][ T253] netlink_rcv_skb+0x130/0x360 [ 4276.753437][ T253] netlink_unicast+0x449/0x710 [ 4276.753437][ T253] netlink_sendmsg+0x723/0xbe0 [ 4276.753437][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4276.753437][ T253] ___sys_sendmsg+0xee/0x170 [ 4276.753437][ T253] __sys_sendmsg+0xcd/0x170 [ 4276.753437][ T253] do_syscall_64+0xc6/0x1e0 [ 4276.753437][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4276.753437][ T253] [ 4276.755675][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4276.755675][ T253] netdev_get_by_index+0x5e/0x80 [ 4276.755675][ T253] fib6_nh_init+0x3d8/0x1580 [ 4276.755675][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4276.755675][ T253] ip6_route_add+0x1c/0x140 [ 4276.755675][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4276.755675][ T253] addrconf_add_dev+0xe2/0x170 [ 4276.755675][ T253] inet6_addr_add+0x12f/0xa40 [ 4276.755675][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4276.755675][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4276.755675][ T253] netlink_rcv_skb+0x130/0x360 [ 4276.755675][ T253] netlink_unicast+0x449/0x710 [ 4276.755675][ T253] netlink_sendmsg+0x723/0xbe0 [ 4276.755675][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4276.755675][ T253] ___sys_sendmsg+0xee/0x170 [ 4276.755675][ T253] __sys_sendmsg+0xcd/0x170 [ 4276.755675][ T253] do_syscall_64+0xc6/0x1e0 [ 4276.755675][ T253] [ 4276.757872][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4276.757872][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4276.757872][ T253] ipv6_find_idev+0x102/0x170 [ 4276.757872][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4276.757872][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4276.757872][ T253] netlink_rcv_skb+0x130/0x360 [ 4276.757872][ T253] netlink_unicast+0x449/0x710 [ 4276.757872][ T253] netlink_sendmsg+0x723/0xbe0 [ 4276.757872][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4276.757872][ T253] ___sys_sendmsg+0xee/0x170 [ 4276.757872][ T253] __sys_sendmsg+0xcd/0x170 [ 4276.757872][ T253] do_syscall_64+0xc6/0x1e0 [ 4276.757872][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4276.757872][ T253] [ 4276.759610][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4276.759610][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4276.759610][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4276.759610][ T253] ipv6_find_idev+0x102/0x170 [ 4276.759610][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4276.759610][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4276.759610][ T253] netlink_rcv_skb+0x130/0x360 [ 4276.759610][ T253] netlink_unicast+0x449/0x710 [ 4276.759610][ T253] netlink_sendmsg+0x723/0xbe0 [ 4276.759610][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4276.759610][ T253] ___sys_sendmsg+0xee/0x170 [ 4276.759610][ T253] __sys_sendmsg+0xcd/0x170 [ 4276.759610][ T253] do_syscall_64+0xc6/0x1e0 [ 4276.759610][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4276.759610][ T253] [ 4287.010331][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4287.010816][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4287.010816][ T253] dst_init+0x84/0x4a0 [ 4287.010816][ T253] dst_alloc+0x97/0x150 [ 4287.010816][ T253] ip6_dst_alloc+0x23/0x90 [ 4287.010816][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4287.010816][ T253] ip6_pol_route+0x56f/0x840 [ 4287.010816][ T253] fib6_rule_lookup+0x334/0x630 [ 4287.010816][ T253] ip6_route_output_flags+0x259/0x480 [ 4287.010816][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4287.010816][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4287.010816][ T253] netlink_rcv_skb+0x130/0x360 [ 4287.010816][ T253] netlink_unicast+0x449/0x710 [ 4287.010816][ T253] netlink_sendmsg+0x723/0xbe0 [ 4287.010816][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4287.010816][ T253] ___sys_sendmsg+0xee/0x170 [ 4287.010816][ T253] __sys_sendmsg+0xcd/0x170 [ 4287.010816][ T253] do_syscall_64+0xc6/0x1e0 [ 4287.010816][ T253] [ 4287.013009][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4287.013009][ T253] netdev_get_by_index+0x5e/0x80 [ 4287.013009][ T253] fib6_nh_init+0x3d8/0x1580 [ 4287.013009][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4287.013009][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4287.013009][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4287.013009][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4287.013009][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4287.013009][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4287.013009][ T253] addrconf_dad_begin+0x310/0x670 [ 4287.013009][ T253] addrconf_dad_work+0x10b/0xab0 [ 4287.013009][ T253] process_one_work+0x84d/0x18a0 [ 4287.013009][ T253] worker_thread+0x587/0xd30 [ 4287.013009][ T253] kthread+0x28a/0x350 [ 4287.013009][ T253] ret_from_fork+0x31/0x70 [ 4287.013009][ T253] ret_from_fork_asm+0x1a/0x30 [ 4287.013009][ T253] [ 4287.015166][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4287.015166][ T253] netdev_get_by_index+0x5e/0x80 [ 4287.015166][ T253] fib6_nh_init+0x3d8/0x1580 [ 4287.015166][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4287.015166][ T253] ip6_route_add+0x1c/0x140 [ 4287.015166][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4287.015166][ T253] inet6_addr_add+0x4f8/0xa40 [ 4287.015166][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4287.015166][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4287.015166][ T253] netlink_rcv_skb+0x130/0x360 [ 4287.015166][ T253] netlink_unicast+0x449/0x710 [ 4287.015166][ T253] netlink_sendmsg+0x723/0xbe0 [ 4287.015166][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4287.015166][ T253] ___sys_sendmsg+0xee/0x170 [ 4287.015166][ T253] __sys_sendmsg+0xcd/0x170 [ 4287.015166][ T253] do_syscall_64+0xc6/0x1e0 [ 4287.015166][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4287.015166][ T253] [ 4287.017398][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4287.017398][ T253] netdev_get_by_index+0x5e/0x80 [ 4287.017398][ T253] fib6_nh_init+0x3d8/0x1580 [ 4287.017398][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4287.017398][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4287.017398][ T253] ipv6_add_addr+0x411/0x2000 [ 4287.017398][ T253] inet6_addr_add+0x30e/0xa40 [ 4287.017398][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4287.017398][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4287.017398][ T253] netlink_rcv_skb+0x130/0x360 [ 4287.017398][ T253] netlink_unicast+0x449/0x710 [ 4287.017398][ T253] netlink_sendmsg+0x723/0xbe0 [ 4287.017398][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4287.017398][ T253] ___sys_sendmsg+0xee/0x170 [ 4287.017398][ T253] __sys_sendmsg+0xcd/0x170 [ 4287.017398][ T253] do_syscall_64+0xc6/0x1e0 [ 4287.017398][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4287.017398][ T253] [ 4287.019648][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4287.019648][ T253] netdev_get_by_index+0x5e/0x80 [ 4287.019648][ T253] fib6_nh_init+0x3d8/0x1580 [ 4287.019648][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4287.019648][ T253] ip6_route_add+0x1c/0x140 [ 4287.019648][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4287.019648][ T253] addrconf_add_dev+0xe2/0x170 [ 4287.019648][ T253] inet6_addr_add+0x12f/0xa40 [ 4287.019648][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4287.019648][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4287.019648][ T253] netlink_rcv_skb+0x130/0x360 [ 4287.019648][ T253] netlink_unicast+0x449/0x710 [ 4287.019648][ T253] netlink_sendmsg+0x723/0xbe0 [ 4287.019648][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4287.019648][ T253] ___sys_sendmsg+0xee/0x170 [ 4287.019648][ T253] __sys_sendmsg+0xcd/0x170 [ 4287.019648][ T253] do_syscall_64+0xc6/0x1e0 [ 4287.019648][ T253] [ 4287.021855][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4287.021855][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4287.021855][ T253] ipv6_find_idev+0x102/0x170 [ 4287.021855][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4287.021855][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4287.021855][ T253] netlink_rcv_skb+0x130/0x360 [ 4287.021855][ T253] netlink_unicast+0x449/0x710 [ 4287.021855][ T253] netlink_sendmsg+0x723/0xbe0 [ 4287.021855][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4287.021855][ T253] ___sys_sendmsg+0xee/0x170 [ 4287.021855][ T253] __sys_sendmsg+0xcd/0x170 [ 4287.021855][ T253] do_syscall_64+0xc6/0x1e0 [ 4287.021855][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4287.021855][ T253] [ 4287.023595][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4287.023595][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4287.023595][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4287.023595][ T253] ipv6_find_idev+0x102/0x170 [ 4287.023595][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4287.023595][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4287.023595][ T253] netlink_rcv_skb+0x130/0x360 [ 4287.023595][ T253] netlink_unicast+0x449/0x710 [ 4287.023595][ T253] netlink_sendmsg+0x723/0xbe0 [ 4287.023595][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4287.023595][ T253] ___sys_sendmsg+0xee/0x170 [ 4287.023595][ T253] __sys_sendmsg+0xcd/0x170 [ 4287.023595][ T253] do_syscall_64+0xc6/0x1e0 [ 4287.023595][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4287.023595][ T253] [ 4297.106312][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4297.106784][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4297.106784][ T253] dst_init+0x84/0x4a0 [ 4297.106784][ T253] dst_alloc+0x97/0x150 [ 4297.106784][ T253] ip6_dst_alloc+0x23/0x90 [ 4297.106784][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4297.106784][ T253] ip6_pol_route+0x56f/0x840 [ 4297.106784][ T253] fib6_rule_lookup+0x334/0x630 [ 4297.106784][ T253] ip6_route_output_flags+0x259/0x480 [ 4297.106784][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4297.106784][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4297.106784][ T253] netlink_rcv_skb+0x130/0x360 [ 4297.106784][ T253] netlink_unicast+0x449/0x710 [ 4297.106784][ T253] netlink_sendmsg+0x723/0xbe0 [ 4297.106784][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4297.106784][ T253] ___sys_sendmsg+0xee/0x170 [ 4297.106784][ T253] __sys_sendmsg+0xcd/0x170 [ 4297.106784][ T253] do_syscall_64+0xc6/0x1e0 [ 4297.106784][ T253] [ 4297.108981][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4297.108981][ T253] netdev_get_by_index+0x5e/0x80 [ 4297.108981][ T253] fib6_nh_init+0x3d8/0x1580 [ 4297.108981][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4297.108981][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4297.108981][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4297.108981][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4297.108981][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4297.108981][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4297.108981][ T253] addrconf_dad_begin+0x310/0x670 [ 4297.108981][ T253] addrconf_dad_work+0x10b/0xab0 [ 4297.108981][ T253] process_one_work+0x84d/0x18a0 [ 4297.108981][ T253] worker_thread+0x587/0xd30 [ 4297.108981][ T253] kthread+0x28a/0x350 [ 4297.108981][ T253] ret_from_fork+0x31/0x70 [ 4297.108981][ T253] ret_from_fork_asm+0x1a/0x30 [ 4297.108981][ T253] [ 4297.111134][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4297.111134][ T253] netdev_get_by_index+0x5e/0x80 [ 4297.111134][ T253] fib6_nh_init+0x3d8/0x1580 [ 4297.111134][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4297.111134][ T253] ip6_route_add+0x1c/0x140 [ 4297.111134][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4297.111134][ T253] inet6_addr_add+0x4f8/0xa40 [ 4297.111134][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4297.111134][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4297.111134][ T253] netlink_rcv_skb+0x130/0x360 [ 4297.111134][ T253] netlink_unicast+0x449/0x710 [ 4297.111134][ T253] netlink_sendmsg+0x723/0xbe0 [ 4297.111134][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4297.111134][ T253] ___sys_sendmsg+0xee/0x170 [ 4297.111134][ T253] __sys_sendmsg+0xcd/0x170 [ 4297.111134][ T253] do_syscall_64+0xc6/0x1e0 [ 4297.111134][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4297.111134][ T253] [ 4297.113370][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4297.113370][ T253] netdev_get_by_index+0x5e/0x80 [ 4297.113370][ T253] fib6_nh_init+0x3d8/0x1580 [ 4297.113370][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4297.113370][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4297.113370][ T253] ipv6_add_addr+0x411/0x2000 [ 4297.113370][ T253] inet6_addr_add+0x30e/0xa40 [ 4297.113370][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4297.113370][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4297.113370][ T253] netlink_rcv_skb+0x130/0x360 [ 4297.113370][ T253] netlink_unicast+0x449/0x710 [ 4297.113370][ T253] netlink_sendmsg+0x723/0xbe0 [ 4297.113370][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4297.113370][ T253] ___sys_sendmsg+0xee/0x170 [ 4297.113370][ T253] __sys_sendmsg+0xcd/0x170 [ 4297.113370][ T253] do_syscall_64+0xc6/0x1e0 [ 4297.113370][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4297.113370][ T253] [ 4297.115608][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4297.115608][ T253] netdev_get_by_index+0x5e/0x80 [ 4297.115608][ T253] fib6_nh_init+0x3d8/0x1580 [ 4297.115608][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4297.115608][ T253] ip6_route_add+0x1c/0x140 [ 4297.115608][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4297.115608][ T253] addrconf_add_dev+0xe2/0x170 [ 4297.115608][ T253] inet6_addr_add+0x12f/0xa40 [ 4297.115608][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4297.115608][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4297.115608][ T253] netlink_rcv_skb+0x130/0x360 [ 4297.115608][ T253] netlink_unicast+0x449/0x710 [ 4297.115608][ T253] netlink_sendmsg+0x723/0xbe0 [ 4297.115608][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4297.115608][ T253] ___sys_sendmsg+0xee/0x170 [ 4297.115608][ T253] __sys_sendmsg+0xcd/0x170 [ 4297.115608][ T253] do_syscall_64+0xc6/0x1e0 [ 4297.115608][ T253] [ 4297.118207][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4297.118207][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4297.118207][ T253] ipv6_find_idev+0x102/0x170 [ 4297.118207][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4297.118207][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4297.118207][ T253] netlink_rcv_skb+0x130/0x360 [ 4297.118207][ T253] netlink_unicast+0x449/0x710 [ 4297.118207][ T253] netlink_sendmsg+0x723/0xbe0 [ 4297.118207][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4297.118207][ T253] ___sys_sendmsg+0xee/0x170 [ 4297.118207][ T253] __sys_sendmsg+0xcd/0x170 [ 4297.118207][ T253] do_syscall_64+0xc6/0x1e0 [ 4297.118207][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4297.118207][ T253] [ 4297.119952][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4297.119952][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4297.119952][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4297.119952][ T253] ipv6_find_idev+0x102/0x170 [ 4297.119952][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4297.119952][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4297.119952][ T253] netlink_rcv_skb+0x130/0x360 [ 4297.119952][ T253] netlink_unicast+0x449/0x710 [ 4297.119952][ T253] netlink_sendmsg+0x723/0xbe0 [ 4297.119952][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4297.119952][ T253] ___sys_sendmsg+0xee/0x170 [ 4297.119952][ T253] __sys_sendmsg+0xcd/0x170 [ 4297.119952][ T253] do_syscall_64+0xc6/0x1e0 [ 4297.119952][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4297.119952][ T253] [ 4307.362302][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4307.362813][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4307.362813][ T253] dst_init+0x84/0x4a0 [ 4307.362813][ T253] dst_alloc+0x97/0x150 [ 4307.362813][ T253] ip6_dst_alloc+0x23/0x90 [ 4307.362813][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4307.362813][ T253] ip6_pol_route+0x56f/0x840 [ 4307.362813][ T253] fib6_rule_lookup+0x334/0x630 [ 4307.362813][ T253] ip6_route_output_flags+0x259/0x480 [ 4307.362813][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4307.362813][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4307.362813][ T253] netlink_rcv_skb+0x130/0x360 [ 4307.362813][ T253] netlink_unicast+0x449/0x710 [ 4307.362813][ T253] netlink_sendmsg+0x723/0xbe0 [ 4307.362813][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4307.362813][ T253] ___sys_sendmsg+0xee/0x170 [ 4307.362813][ T253] __sys_sendmsg+0xcd/0x170 [ 4307.362813][ T253] do_syscall_64+0xc6/0x1e0 [ 4307.362813][ T253] [ 4307.365039][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4307.365039][ T253] netdev_get_by_index+0x5e/0x80 [ 4307.365039][ T253] fib6_nh_init+0x3d8/0x1580 [ 4307.365039][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4307.365039][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4307.365039][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4307.365039][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4307.365039][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4307.365039][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4307.365039][ T253] addrconf_dad_begin+0x310/0x670 [ 4307.365039][ T253] addrconf_dad_work+0x10b/0xab0 [ 4307.365039][ T253] process_one_work+0x84d/0x18a0 [ 4307.365039][ T253] worker_thread+0x587/0xd30 [ 4307.365039][ T253] kthread+0x28a/0x350 [ 4307.365039][ T253] ret_from_fork+0x31/0x70 [ 4307.365039][ T253] ret_from_fork_asm+0x1a/0x30 [ 4307.365039][ T253] [ 4307.367172][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4307.367172][ T253] netdev_get_by_index+0x5e/0x80 [ 4307.367172][ T253] fib6_nh_init+0x3d8/0x1580 [ 4307.367172][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4307.367172][ T253] ip6_route_add+0x1c/0x140 [ 4307.367172][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4307.367172][ T253] inet6_addr_add+0x4f8/0xa40 [ 4307.367172][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4307.367172][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4307.367172][ T253] netlink_rcv_skb+0x130/0x360 [ 4307.367172][ T253] netlink_unicast+0x449/0x710 [ 4307.367172][ T253] netlink_sendmsg+0x723/0xbe0 [ 4307.367172][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4307.367172][ T253] ___sys_sendmsg+0xee/0x170 [ 4307.367172][ T253] __sys_sendmsg+0xcd/0x170 [ 4307.367172][ T253] do_syscall_64+0xc6/0x1e0 [ 4307.367172][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4307.367172][ T253] [ 4307.369448][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4307.369448][ T253] netdev_get_by_index+0x5e/0x80 [ 4307.369448][ T253] fib6_nh_init+0x3d8/0x1580 [ 4307.369448][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4307.369448][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4307.369448][ T253] ipv6_add_addr+0x411/0x2000 [ 4307.369448][ T253] inet6_addr_add+0x30e/0xa40 [ 4307.369448][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4307.369448][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4307.369448][ T253] netlink_rcv_skb+0x130/0x360 [ 4307.369448][ T253] netlink_unicast+0x449/0x710 [ 4307.369448][ T253] netlink_sendmsg+0x723/0xbe0 [ 4307.369448][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4307.369448][ T253] ___sys_sendmsg+0xee/0x170 [ 4307.369448][ T253] __sys_sendmsg+0xcd/0x170 [ 4307.369448][ T253] do_syscall_64+0xc6/0x1e0 [ 4307.369448][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4307.369448][ T253] [ 4307.371702][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4307.371702][ T253] netdev_get_by_index+0x5e/0x80 [ 4307.371702][ T253] fib6_nh_init+0x3d8/0x1580 [ 4307.371702][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4307.371702][ T253] ip6_route_add+0x1c/0x140 [ 4307.371702][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4307.371702][ T253] addrconf_add_dev+0xe2/0x170 [ 4307.371702][ T253] inet6_addr_add+0x12f/0xa40 [ 4307.371702][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4307.371702][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4307.371702][ T253] netlink_rcv_skb+0x130/0x360 [ 4307.371702][ T253] netlink_unicast+0x449/0x710 [ 4307.371702][ T253] netlink_sendmsg+0x723/0xbe0 [ 4307.371702][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4307.371702][ T253] ___sys_sendmsg+0xee/0x170 [ 4307.371702][ T253] __sys_sendmsg+0xcd/0x170 [ 4307.371702][ T253] do_syscall_64+0xc6/0x1e0 [ 4307.371702][ T253] [ 4307.373902][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4307.373902][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4307.373902][ T253] ipv6_find_idev+0x102/0x170 [ 4307.373902][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4307.373902][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4307.373902][ T253] netlink_rcv_skb+0x130/0x360 [ 4307.373902][ T253] netlink_unicast+0x449/0x710 [ 4307.373902][ T253] netlink_sendmsg+0x723/0xbe0 [ 4307.373902][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4307.373902][ T253] ___sys_sendmsg+0xee/0x170 [ 4307.373902][ T253] __sys_sendmsg+0xcd/0x170 [ 4307.373902][ T253] do_syscall_64+0xc6/0x1e0 [ 4307.373902][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4307.373902][ T253] [ 4307.375628][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4307.375628][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4307.375628][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4307.375628][ T253] ipv6_find_idev+0x102/0x170 [ 4307.375628][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4307.375628][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4307.375628][ T253] netlink_rcv_skb+0x130/0x360 [ 4307.375628][ T253] netlink_unicast+0x449/0x710 [ 4307.375628][ T253] netlink_sendmsg+0x723/0xbe0 [ 4307.375628][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4307.375628][ T253] ___sys_sendmsg+0xee/0x170 [ 4307.375628][ T253] __sys_sendmsg+0xcd/0x170 [ 4307.375628][ T253] do_syscall_64+0xc6/0x1e0 [ 4307.375628][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4307.375628][ T253] [ 4317.618300][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4317.618803][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4317.618803][ T253] dst_init+0x84/0x4a0 [ 4317.618803][ T253] dst_alloc+0x97/0x150 [ 4317.618803][ T253] ip6_dst_alloc+0x23/0x90 [ 4317.618803][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4317.618803][ T253] ip6_pol_route+0x56f/0x840 [ 4317.618803][ T253] fib6_rule_lookup+0x334/0x630 [ 4317.618803][ T253] ip6_route_output_flags+0x259/0x480 [ 4317.618803][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4317.618803][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4317.618803][ T253] netlink_rcv_skb+0x130/0x360 [ 4317.618803][ T253] netlink_unicast+0x449/0x710 [ 4317.618803][ T253] netlink_sendmsg+0x723/0xbe0 [ 4317.618803][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4317.618803][ T253] ___sys_sendmsg+0xee/0x170 [ 4317.618803][ T253] __sys_sendmsg+0xcd/0x170 [ 4317.618803][ T253] do_syscall_64+0xc6/0x1e0 [ 4317.618803][ T253] [ 4317.621047][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4317.621047][ T253] netdev_get_by_index+0x5e/0x80 [ 4317.621047][ T253] fib6_nh_init+0x3d8/0x1580 [ 4317.621047][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4317.621047][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4317.621047][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4317.621047][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4317.621047][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4317.621047][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4317.621047][ T253] addrconf_dad_begin+0x310/0x670 [ 4317.621047][ T253] addrconf_dad_work+0x10b/0xab0 [ 4317.621047][ T253] process_one_work+0x84d/0x18a0 [ 4317.621047][ T253] worker_thread+0x587/0xd30 [ 4317.621047][ T253] kthread+0x28a/0x350 [ 4317.621047][ T253] ret_from_fork+0x31/0x70 [ 4317.621047][ T253] ret_from_fork_asm+0x1a/0x30 [ 4317.621047][ T253] [ 4317.623208][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4317.623208][ T253] netdev_get_by_index+0x5e/0x80 [ 4317.623208][ T253] fib6_nh_init+0x3d8/0x1580 [ 4317.623208][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4317.623208][ T253] ip6_route_add+0x1c/0x140 [ 4317.623208][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4317.623208][ T253] inet6_addr_add+0x4f8/0xa40 [ 4317.623208][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4317.623208][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4317.623208][ T253] netlink_rcv_skb+0x130/0x360 [ 4317.623208][ T253] netlink_unicast+0x449/0x710 [ 4317.623208][ T253] netlink_sendmsg+0x723/0xbe0 [ 4317.623208][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4317.623208][ T253] ___sys_sendmsg+0xee/0x170 [ 4317.623208][ T253] __sys_sendmsg+0xcd/0x170 [ 4317.623208][ T253] do_syscall_64+0xc6/0x1e0 [ 4317.623208][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4317.623208][ T253] [ 4317.625469][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4317.625469][ T253] netdev_get_by_index+0x5e/0x80 [ 4317.625469][ T253] fib6_nh_init+0x3d8/0x1580 [ 4317.625469][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4317.625469][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4317.625469][ T253] ipv6_add_addr+0x411/0x2000 [ 4317.625469][ T253] inet6_addr_add+0x30e/0xa40 [ 4317.625469][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4317.625469][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4317.625469][ T253] netlink_rcv_skb+0x130/0x360 [ 4317.625469][ T253] netlink_unicast+0x449/0x710 [ 4317.625469][ T253] netlink_sendmsg+0x723/0xbe0 [ 4317.625469][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4317.625469][ T253] ___sys_sendmsg+0xee/0x170 [ 4317.625469][ T253] __sys_sendmsg+0xcd/0x170 [ 4317.625469][ T253] do_syscall_64+0xc6/0x1e0 [ 4317.625469][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4317.625469][ T253] [ 4317.627730][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4317.627730][ T253] netdev_get_by_index+0x5e/0x80 [ 4317.627730][ T253] fib6_nh_init+0x3d8/0x1580 [ 4317.627730][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4317.627730][ T253] ip6_route_add+0x1c/0x140 [ 4317.627730][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4317.627730][ T253] addrconf_add_dev+0xe2/0x170 [ 4317.627730][ T253] inet6_addr_add+0x12f/0xa40 [ 4317.627730][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4317.627730][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4317.627730][ T253] netlink_rcv_skb+0x130/0x360 [ 4317.627730][ T253] netlink_unicast+0x449/0x710 [ 4317.627730][ T253] netlink_sendmsg+0x723/0xbe0 [ 4317.627730][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4317.627730][ T253] ___sys_sendmsg+0xee/0x170 [ 4317.627730][ T253] __sys_sendmsg+0xcd/0x170 [ 4317.627730][ T253] do_syscall_64+0xc6/0x1e0 [ 4317.627730][ T253] [ 4317.629960][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4317.629960][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4317.629960][ T253] ipv6_find_idev+0x102/0x170 [ 4317.629960][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4317.629960][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4317.629960][ T253] netlink_rcv_skb+0x130/0x360 [ 4317.629960][ T253] netlink_unicast+0x449/0x710 [ 4317.629960][ T253] netlink_sendmsg+0x723/0xbe0 [ 4317.629960][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4317.629960][ T253] ___sys_sendmsg+0xee/0x170 [ 4317.629960][ T253] __sys_sendmsg+0xcd/0x170 [ 4317.629960][ T253] do_syscall_64+0xc6/0x1e0 [ 4317.629960][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4317.629960][ T253] [ 4317.631706][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4317.631706][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4317.631706][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4317.631706][ T253] ipv6_find_idev+0x102/0x170 [ 4317.631706][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4317.631706][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4317.631706][ T253] netlink_rcv_skb+0x130/0x360 [ 4317.631706][ T253] netlink_unicast+0x449/0x710 [ 4317.631706][ T253] netlink_sendmsg+0x723/0xbe0 [ 4317.631706][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4317.631706][ T253] ___sys_sendmsg+0xee/0x170 [ 4317.631706][ T253] __sys_sendmsg+0xcd/0x170 [ 4317.631706][ T253] do_syscall_64+0xc6/0x1e0 [ 4317.631706][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4317.631706][ T253] [ 4327.874301][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4327.874832][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4327.874832][ T253] dst_init+0x84/0x4a0 [ 4327.874832][ T253] dst_alloc+0x97/0x150 [ 4327.874832][ T253] ip6_dst_alloc+0x23/0x90 [ 4327.874832][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4327.874832][ T253] ip6_pol_route+0x56f/0x840 [ 4327.874832][ T253] fib6_rule_lookup+0x334/0x630 [ 4327.874832][ T253] ip6_route_output_flags+0x259/0x480 [ 4327.874832][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4327.874832][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4327.874832][ T253] netlink_rcv_skb+0x130/0x360 [ 4327.874832][ T253] netlink_unicast+0x449/0x710 [ 4327.874832][ T253] netlink_sendmsg+0x723/0xbe0 [ 4327.874832][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4327.874832][ T253] ___sys_sendmsg+0xee/0x170 [ 4327.874832][ T253] __sys_sendmsg+0xcd/0x170 [ 4327.874832][ T253] do_syscall_64+0xc6/0x1e0 [ 4327.874832][ T253] [ 4327.877046][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4327.877046][ T253] netdev_get_by_index+0x5e/0x80 [ 4327.877046][ T253] fib6_nh_init+0x3d8/0x1580 [ 4327.877046][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4327.877046][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4327.877046][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4327.877046][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4327.877046][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4327.877046][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4327.877046][ T253] addrconf_dad_begin+0x310/0x670 [ 4327.877046][ T253] addrconf_dad_work+0x10b/0xab0 [ 4327.877046][ T253] process_one_work+0x84d/0x18a0 [ 4327.877046][ T253] worker_thread+0x587/0xd30 [ 4327.877046][ T253] kthread+0x28a/0x350 [ 4327.877046][ T253] ret_from_fork+0x31/0x70 [ 4327.877046][ T253] ret_from_fork_asm+0x1a/0x30 [ 4327.877046][ T253] [ 4327.879219][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4327.879219][ T253] netdev_get_by_index+0x5e/0x80 [ 4327.879219][ T253] fib6_nh_init+0x3d8/0x1580 [ 4327.879219][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4327.879219][ T253] ip6_route_add+0x1c/0x140 [ 4327.879219][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4327.879219][ T253] inet6_addr_add+0x4f8/0xa40 [ 4327.879219][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4327.879219][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4327.879219][ T253] netlink_rcv_skb+0x130/0x360 [ 4327.879219][ T253] netlink_unicast+0x449/0x710 [ 4327.879219][ T253] netlink_sendmsg+0x723/0xbe0 [ 4327.879219][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4327.879219][ T253] ___sys_sendmsg+0xee/0x170 [ 4327.879219][ T253] __sys_sendmsg+0xcd/0x170 [ 4327.879219][ T253] do_syscall_64+0xc6/0x1e0 [ 4327.879219][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4327.879219][ T253] [ 4327.881471][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4327.881471][ T253] netdev_get_by_index+0x5e/0x80 [ 4327.881471][ T253] fib6_nh_init+0x3d8/0x1580 [ 4327.881471][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4327.881471][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4327.881471][ T253] ipv6_add_addr+0x411/0x2000 [ 4327.881471][ T253] inet6_addr_add+0x30e/0xa40 [ 4327.881471][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4327.881471][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4327.881471][ T253] netlink_rcv_skb+0x130/0x360 [ 4327.881471][ T253] netlink_unicast+0x449/0x710 [ 4327.881471][ T253] netlink_sendmsg+0x723/0xbe0 [ 4327.881471][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4327.881471][ T253] ___sys_sendmsg+0xee/0x170 [ 4327.881471][ T253] __sys_sendmsg+0xcd/0x170 [ 4327.881471][ T253] do_syscall_64+0xc6/0x1e0 [ 4327.881471][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4327.881471][ T253] [ 4327.883731][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4327.883731][ T253] netdev_get_by_index+0x5e/0x80 [ 4327.883731][ T253] fib6_nh_init+0x3d8/0x1580 [ 4327.883731][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4327.883731][ T253] ip6_route_add+0x1c/0x140 [ 4327.883731][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4327.883731][ T253] addrconf_add_dev+0xe2/0x170 [ 4327.883731][ T253] inet6_addr_add+0x12f/0xa40 [ 4327.883731][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4327.883731][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4327.883731][ T253] netlink_rcv_skb+0x130/0x360 [ 4327.883731][ T253] netlink_unicast+0x449/0x710 [ 4327.883731][ T253] netlink_sendmsg+0x723/0xbe0 [ 4327.883731][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4327.883731][ T253] ___sys_sendmsg+0xee/0x170 [ 4327.883731][ T253] __sys_sendmsg+0xcd/0x170 [ 4327.883731][ T253] do_syscall_64+0xc6/0x1e0 [ 4327.883731][ T253] [ 4327.885951][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4327.885951][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4327.885951][ T253] ipv6_find_idev+0x102/0x170 [ 4327.885951][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4327.885951][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4327.885951][ T253] netlink_rcv_skb+0x130/0x360 [ 4327.885951][ T253] netlink_unicast+0x449/0x710 [ 4327.885951][ T253] netlink_sendmsg+0x723/0xbe0 [ 4327.885951][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4327.885951][ T253] ___sys_sendmsg+0xee/0x170 [ 4327.885951][ T253] __sys_sendmsg+0xcd/0x170 [ 4327.885951][ T253] do_syscall_64+0xc6/0x1e0 [ 4327.885951][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4327.885951][ T253] [ 4327.887689][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4327.887689][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4327.887689][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4327.887689][ T253] ipv6_find_idev+0x102/0x170 [ 4327.887689][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4327.887689][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4327.887689][ T253] netlink_rcv_skb+0x130/0x360 [ 4327.887689][ T253] netlink_unicast+0x449/0x710 [ 4327.887689][ T253] netlink_sendmsg+0x723/0xbe0 [ 4327.887689][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4327.887689][ T253] ___sys_sendmsg+0xee/0x170 [ 4327.887689][ T253] __sys_sendmsg+0xcd/0x170 [ 4327.887689][ T253] do_syscall_64+0xc6/0x1e0 [ 4327.887689][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4327.887689][ T253] [ 4338.130338][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4338.130842][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4338.130842][ T253] dst_init+0x84/0x4a0 [ 4338.130842][ T253] dst_alloc+0x97/0x150 [ 4338.130842][ T253] ip6_dst_alloc+0x23/0x90 [ 4338.130842][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4338.130842][ T253] ip6_pol_route+0x56f/0x840 [ 4338.130842][ T253] fib6_rule_lookup+0x334/0x630 [ 4338.130842][ T253] ip6_route_output_flags+0x259/0x480 [ 4338.130842][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4338.130842][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4338.130842][ T253] netlink_rcv_skb+0x130/0x360 [ 4338.130842][ T253] netlink_unicast+0x449/0x710 [ 4338.130842][ T253] netlink_sendmsg+0x723/0xbe0 [ 4338.130842][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4338.130842][ T253] ___sys_sendmsg+0xee/0x170 [ 4338.130842][ T253] __sys_sendmsg+0xcd/0x170 [ 4338.130842][ T253] do_syscall_64+0xc6/0x1e0 [ 4338.130842][ T253] [ 4338.133055][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4338.133055][ T253] netdev_get_by_index+0x5e/0x80 [ 4338.133055][ T253] fib6_nh_init+0x3d8/0x1580 [ 4338.133055][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4338.133055][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4338.133055][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4338.133055][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4338.133055][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4338.133055][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4338.133055][ T253] addrconf_dad_begin+0x310/0x670 [ 4338.133055][ T253] addrconf_dad_work+0x10b/0xab0 [ 4338.133055][ T253] process_one_work+0x84d/0x18a0 [ 4338.133055][ T253] worker_thread+0x587/0xd30 [ 4338.133055][ T253] kthread+0x28a/0x350 [ 4338.133055][ T253] ret_from_fork+0x31/0x70 [ 4338.133055][ T253] ret_from_fork_asm+0x1a/0x30 [ 4338.133055][ T253] [ 4338.135217][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4338.135217][ T253] netdev_get_by_index+0x5e/0x80 [ 4338.135217][ T253] fib6_nh_init+0x3d8/0x1580 [ 4338.135217][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4338.135217][ T253] ip6_route_add+0x1c/0x140 [ 4338.135217][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4338.135217][ T253] inet6_addr_add+0x4f8/0xa40 [ 4338.135217][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4338.135217][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4338.135217][ T253] netlink_rcv_skb+0x130/0x360 [ 4338.135217][ T253] netlink_unicast+0x449/0x710 [ 4338.135217][ T253] netlink_sendmsg+0x723/0xbe0 [ 4338.135217][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4338.135217][ T253] ___sys_sendmsg+0xee/0x170 [ 4338.135217][ T253] __sys_sendmsg+0xcd/0x170 [ 4338.135217][ T253] do_syscall_64+0xc6/0x1e0 [ 4338.135217][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4338.135217][ T253] [ 4338.137485][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4338.137485][ T253] netdev_get_by_index+0x5e/0x80 [ 4338.137485][ T253] fib6_nh_init+0x3d8/0x1580 [ 4338.137485][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4338.137485][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4338.137485][ T253] ipv6_add_addr+0x411/0x2000 [ 4338.137485][ T253] inet6_addr_add+0x30e/0xa40 [ 4338.137485][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4338.137485][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4338.137485][ T253] netlink_rcv_skb+0x130/0x360 [ 4338.137485][ T253] netlink_unicast+0x449/0x710 [ 4338.137485][ T253] netlink_sendmsg+0x723/0xbe0 [ 4338.137485][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4338.137485][ T253] ___sys_sendmsg+0xee/0x170 [ 4338.137485][ T253] __sys_sendmsg+0xcd/0x170 [ 4338.137485][ T253] do_syscall_64+0xc6/0x1e0 [ 4338.137485][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4338.137485][ T253] [ 4338.139755][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4338.139755][ T253] netdev_get_by_index+0x5e/0x80 [ 4338.139755][ T253] fib6_nh_init+0x3d8/0x1580 [ 4338.139755][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4338.139755][ T253] ip6_route_add+0x1c/0x140 [ 4338.139755][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4338.139755][ T253] addrconf_add_dev+0xe2/0x170 [ 4338.139755][ T253] inet6_addr_add+0x12f/0xa40 [ 4338.139755][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4338.139755][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4338.139755][ T253] netlink_rcv_skb+0x130/0x360 [ 4338.139755][ T253] netlink_unicast+0x449/0x710 [ 4338.139755][ T253] netlink_sendmsg+0x723/0xbe0 [ 4338.139755][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4338.139755][ T253] ___sys_sendmsg+0xee/0x170 [ 4338.139755][ T253] __sys_sendmsg+0xcd/0x170 [ 4338.139755][ T253] do_syscall_64+0xc6/0x1e0 [ 4338.139755][ T253] [ 4338.141975][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4338.141975][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4338.141975][ T253] ipv6_find_idev+0x102/0x170 [ 4338.141975][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4338.141975][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4338.141975][ T253] netlink_rcv_skb+0x130/0x360 [ 4338.141975][ T253] netlink_unicast+0x449/0x710 [ 4338.141975][ T253] netlink_sendmsg+0x723/0xbe0 [ 4338.141975][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4338.141975][ T253] ___sys_sendmsg+0xee/0x170 [ 4338.141975][ T253] __sys_sendmsg+0xcd/0x170 [ 4338.141975][ T253] do_syscall_64+0xc6/0x1e0 [ 4338.141975][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4338.141975][ T253] [ 4338.143717][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4338.143717][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4338.143717][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4338.143717][ T253] ipv6_find_idev+0x102/0x170 [ 4338.143717][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4338.143717][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4338.143717][ T253] netlink_rcv_skb+0x130/0x360 [ 4338.143717][ T253] netlink_unicast+0x449/0x710 [ 4338.143717][ T253] netlink_sendmsg+0x723/0xbe0 [ 4338.143717][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4338.143717][ T253] ___sys_sendmsg+0xee/0x170 [ 4338.143717][ T253] __sys_sendmsg+0xcd/0x170 [ 4338.143717][ T253] do_syscall_64+0xc6/0x1e0 [ 4338.143717][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4338.143717][ T253] [ 4348.386314][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4348.386799][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4348.386799][ T253] dst_init+0x84/0x4a0 [ 4348.386799][ T253] dst_alloc+0x97/0x150 [ 4348.386799][ T253] ip6_dst_alloc+0x23/0x90 [ 4348.386799][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4348.386799][ T253] ip6_pol_route+0x56f/0x840 [ 4348.386799][ T253] fib6_rule_lookup+0x334/0x630 [ 4348.386799][ T253] ip6_route_output_flags+0x259/0x480 [ 4348.386799][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4348.386799][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4348.386799][ T253] netlink_rcv_skb+0x130/0x360 [ 4348.386799][ T253] netlink_unicast+0x449/0x710 [ 4348.386799][ T253] netlink_sendmsg+0x723/0xbe0 [ 4348.386799][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4348.386799][ T253] ___sys_sendmsg+0xee/0x170 [ 4348.386799][ T253] __sys_sendmsg+0xcd/0x170 [ 4348.386799][ T253] do_syscall_64+0xc6/0x1e0 [ 4348.386799][ T253] [ 4348.389023][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4348.389023][ T253] netdev_get_by_index+0x5e/0x80 [ 4348.389023][ T253] fib6_nh_init+0x3d8/0x1580 [ 4348.389023][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4348.389023][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4348.389023][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4348.389023][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4348.389023][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4348.389023][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4348.389023][ T253] addrconf_dad_begin+0x310/0x670 [ 4348.389023][ T253] addrconf_dad_work+0x10b/0xab0 [ 4348.389023][ T253] process_one_work+0x84d/0x18a0 [ 4348.389023][ T253] worker_thread+0x587/0xd30 [ 4348.389023][ T253] kthread+0x28a/0x350 [ 4348.389023][ T253] ret_from_fork+0x31/0x70 [ 4348.389023][ T253] ret_from_fork_asm+0x1a/0x30 [ 4348.389023][ T253] [ 4348.391202][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4348.391202][ T253] netdev_get_by_index+0x5e/0x80 [ 4348.391202][ T253] fib6_nh_init+0x3d8/0x1580 [ 4348.391202][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4348.391202][ T253] ip6_route_add+0x1c/0x140 [ 4348.391202][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4348.391202][ T253] inet6_addr_add+0x4f8/0xa40 [ 4348.391202][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4348.391202][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4348.391202][ T253] netlink_rcv_skb+0x130/0x360 [ 4348.391202][ T253] netlink_unicast+0x449/0x710 [ 4348.391202][ T253] netlink_sendmsg+0x723/0xbe0 [ 4348.391202][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4348.391202][ T253] ___sys_sendmsg+0xee/0x170 [ 4348.391202][ T253] __sys_sendmsg+0xcd/0x170 [ 4348.391202][ T253] do_syscall_64+0xc6/0x1e0 [ 4348.391202][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4348.391202][ T253] [ 4348.393459][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4348.393459][ T253] netdev_get_by_index+0x5e/0x80 [ 4348.393459][ T253] fib6_nh_init+0x3d8/0x1580 [ 4348.393459][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4348.393459][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4348.393459][ T253] ipv6_add_addr+0x411/0x2000 [ 4348.393459][ T253] inet6_addr_add+0x30e/0xa40 [ 4348.393459][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4348.393459][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4348.393459][ T253] netlink_rcv_skb+0x130/0x360 [ 4348.393459][ T253] netlink_unicast+0x449/0x710 [ 4348.393459][ T253] netlink_sendmsg+0x723/0xbe0 [ 4348.393459][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4348.393459][ T253] ___sys_sendmsg+0xee/0x170 [ 4348.393459][ T253] __sys_sendmsg+0xcd/0x170 [ 4348.393459][ T253] do_syscall_64+0xc6/0x1e0 [ 4348.393459][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4348.393459][ T253] [ 4348.395713][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4348.395713][ T253] netdev_get_by_index+0x5e/0x80 [ 4348.395713][ T253] fib6_nh_init+0x3d8/0x1580 [ 4348.395713][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4348.395713][ T253] ip6_route_add+0x1c/0x140 [ 4348.395713][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4348.395713][ T253] addrconf_add_dev+0xe2/0x170 [ 4348.395713][ T253] inet6_addr_add+0x12f/0xa40 [ 4348.395713][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4348.395713][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4348.395713][ T253] netlink_rcv_skb+0x130/0x360 [ 4348.395713][ T253] netlink_unicast+0x449/0x710 [ 4348.395713][ T253] netlink_sendmsg+0x723/0xbe0 [ 4348.395713][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4348.395713][ T253] ___sys_sendmsg+0xee/0x170 [ 4348.395713][ T253] __sys_sendmsg+0xcd/0x170 [ 4348.395713][ T253] do_syscall_64+0xc6/0x1e0 [ 4348.395713][ T253] [ 4348.397939][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4348.397939][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4348.397939][ T253] ipv6_find_idev+0x102/0x170 [ 4348.397939][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4348.397939][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4348.397939][ T253] netlink_rcv_skb+0x130/0x360 [ 4348.397939][ T253] netlink_unicast+0x449/0x710 [ 4348.397939][ T253] netlink_sendmsg+0x723/0xbe0 [ 4348.397939][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4348.397939][ T253] ___sys_sendmsg+0xee/0x170 [ 4348.397939][ T253] __sys_sendmsg+0xcd/0x170 [ 4348.397939][ T253] do_syscall_64+0xc6/0x1e0 [ 4348.397939][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4348.397939][ T253] [ 4348.399730][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4348.399730][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4348.399730][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4348.399730][ T253] ipv6_find_idev+0x102/0x170 [ 4348.399730][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4348.399730][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4348.399730][ T253] netlink_rcv_skb+0x130/0x360 [ 4348.399730][ T253] netlink_unicast+0x449/0x710 [ 4348.399730][ T253] netlink_sendmsg+0x723/0xbe0 [ 4348.399730][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4348.399730][ T253] ___sys_sendmsg+0xee/0x170 [ 4348.399730][ T253] __sys_sendmsg+0xcd/0x170 [ 4348.399730][ T253] do_syscall_64+0xc6/0x1e0 [ 4348.399730][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4348.399730][ T253] [ 4358.498340][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4358.498823][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4358.498823][ T253] dst_init+0x84/0x4a0 [ 4358.498823][ T253] dst_alloc+0x97/0x150 [ 4358.498823][ T253] ip6_dst_alloc+0x23/0x90 [ 4358.498823][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4358.498823][ T253] ip6_pol_route+0x56f/0x840 [ 4358.498823][ T253] fib6_rule_lookup+0x334/0x630 [ 4358.498823][ T253] ip6_route_output_flags+0x259/0x480 [ 4358.498823][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4358.498823][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4358.498823][ T253] netlink_rcv_skb+0x130/0x360 [ 4358.498823][ T253] netlink_unicast+0x449/0x710 [ 4358.498823][ T253] netlink_sendmsg+0x723/0xbe0 [ 4358.498823][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4358.498823][ T253] ___sys_sendmsg+0xee/0x170 [ 4358.498823][ T253] __sys_sendmsg+0xcd/0x170 [ 4358.498823][ T253] do_syscall_64+0xc6/0x1e0 [ 4358.498823][ T253] [ 4358.501052][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4358.501052][ T253] netdev_get_by_index+0x5e/0x80 [ 4358.501052][ T253] fib6_nh_init+0x3d8/0x1580 [ 4358.501052][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4358.501052][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4358.501052][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4358.501052][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4358.501052][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4358.501052][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4358.501052][ T253] addrconf_dad_begin+0x310/0x670 [ 4358.501052][ T253] addrconf_dad_work+0x10b/0xab0 [ 4358.501052][ T253] process_one_work+0x84d/0x18a0 [ 4358.501052][ T253] worker_thread+0x587/0xd30 [ 4358.501052][ T253] kthread+0x28a/0x350 [ 4358.501052][ T253] ret_from_fork+0x31/0x70 [ 4358.501052][ T253] ret_from_fork_asm+0x1a/0x30 [ 4358.501052][ T253] [ 4358.503200][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4358.503200][ T253] netdev_get_by_index+0x5e/0x80 [ 4358.503200][ T253] fib6_nh_init+0x3d8/0x1580 [ 4358.503200][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4358.503200][ T253] ip6_route_add+0x1c/0x140 [ 4358.503200][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4358.503200][ T253] inet6_addr_add+0x4f8/0xa40 [ 4358.503200][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4358.503200][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4358.503200][ T253] netlink_rcv_skb+0x130/0x360 [ 4358.503200][ T253] netlink_unicast+0x449/0x710 [ 4358.503200][ T253] netlink_sendmsg+0x723/0xbe0 [ 4358.503200][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4358.503200][ T253] ___sys_sendmsg+0xee/0x170 [ 4358.503200][ T253] __sys_sendmsg+0xcd/0x170 [ 4358.503200][ T253] do_syscall_64+0xc6/0x1e0 [ 4358.503200][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4358.503200][ T253] [ 4358.505453][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4358.505453][ T253] netdev_get_by_index+0x5e/0x80 [ 4358.505453][ T253] fib6_nh_init+0x3d8/0x1580 [ 4358.505453][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4358.505453][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4358.505453][ T253] ipv6_add_addr+0x411/0x2000 [ 4358.505453][ T253] inet6_addr_add+0x30e/0xa40 [ 4358.505453][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4358.505453][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4358.505453][ T253] netlink_rcv_skb+0x130/0x360 [ 4358.505453][ T253] netlink_unicast+0x449/0x710 [ 4358.505453][ T253] netlink_sendmsg+0x723/0xbe0 [ 4358.505453][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4358.505453][ T253] ___sys_sendmsg+0xee/0x170 [ 4358.505453][ T253] __sys_sendmsg+0xcd/0x170 [ 4358.505453][ T253] do_syscall_64+0xc6/0x1e0 [ 4358.505453][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4358.505453][ T253] [ 4358.507699][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4358.507699][ T253] netdev_get_by_index+0x5e/0x80 [ 4358.507699][ T253] fib6_nh_init+0x3d8/0x1580 [ 4358.507699][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4358.507699][ T253] ip6_route_add+0x1c/0x140 [ 4358.507699][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4358.507699][ T253] addrconf_add_dev+0xe2/0x170 [ 4358.507699][ T253] inet6_addr_add+0x12f/0xa40 [ 4358.507699][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4358.507699][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4358.507699][ T253] netlink_rcv_skb+0x130/0x360 [ 4358.507699][ T253] netlink_unicast+0x449/0x710 [ 4358.507699][ T253] netlink_sendmsg+0x723/0xbe0 [ 4358.507699][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4358.507699][ T253] ___sys_sendmsg+0xee/0x170 [ 4358.507699][ T253] __sys_sendmsg+0xcd/0x170 [ 4358.507699][ T253] do_syscall_64+0xc6/0x1e0 [ 4358.507699][ T253] [ 4358.509937][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4358.509937][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4358.509937][ T253] ipv6_find_idev+0x102/0x170 [ 4358.509937][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4358.509937][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4358.509937][ T253] netlink_rcv_skb+0x130/0x360 [ 4358.509937][ T253] netlink_unicast+0x449/0x710 [ 4358.509937][ T253] netlink_sendmsg+0x723/0xbe0 [ 4358.509937][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4358.509937][ T253] ___sys_sendmsg+0xee/0x170 [ 4358.509937][ T253] __sys_sendmsg+0xcd/0x170 [ 4358.509937][ T253] do_syscall_64+0xc6/0x1e0 [ 4358.509937][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4358.509937][ T253] [ 4358.511662][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4358.511662][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4358.511662][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4358.511662][ T253] ipv6_find_idev+0x102/0x170 [ 4358.511662][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4358.511662][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4358.511662][ T253] netlink_rcv_skb+0x130/0x360 [ 4358.511662][ T253] netlink_unicast+0x449/0x710 [ 4358.511662][ T253] netlink_sendmsg+0x723/0xbe0 [ 4358.511662][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4358.511662][ T253] ___sys_sendmsg+0xee/0x170 [ 4358.511662][ T253] __sys_sendmsg+0xcd/0x170 [ 4358.511662][ T253] do_syscall_64+0xc6/0x1e0 [ 4358.511662][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4358.511662][ T253] [ 4368.562303][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4368.562963][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4368.562963][ T253] dst_init+0x84/0x4a0 [ 4368.562963][ T253] dst_alloc+0x97/0x150 [ 4368.562963][ T253] ip6_dst_alloc+0x23/0x90 [ 4368.562963][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4368.562963][ T253] ip6_pol_route+0x56f/0x840 [ 4368.562963][ T253] fib6_rule_lookup+0x334/0x630 [ 4368.562963][ T253] ip6_route_output_flags+0x259/0x480 [ 4368.562963][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4368.562963][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4368.562963][ T253] netlink_rcv_skb+0x130/0x360 [ 4368.562963][ T253] netlink_unicast+0x449/0x710 [ 4368.562963][ T253] netlink_sendmsg+0x723/0xbe0 [ 4368.562963][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4368.562963][ T253] ___sys_sendmsg+0xee/0x170 [ 4368.562963][ T253] __sys_sendmsg+0xcd/0x170 [ 4368.562963][ T253] do_syscall_64+0xc6/0x1e0 [ 4368.562963][ T253] [ 4368.566328][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4368.566328][ T253] netdev_get_by_index+0x5e/0x80 [ 4368.566328][ T253] fib6_nh_init+0x3d8/0x1580 [ 4368.566328][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4368.566328][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4368.566328][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4368.566328][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4368.566328][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4368.566328][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4368.566328][ T253] addrconf_dad_begin+0x310/0x670 [ 4368.566328][ T253] addrconf_dad_work+0x10b/0xab0 [ 4368.566328][ T253] process_one_work+0x84d/0x18a0 [ 4368.566328][ T253] worker_thread+0x587/0xd30 [ 4368.566328][ T253] kthread+0x28a/0x350 [ 4368.566328][ T253] ret_from_fork+0x31/0x70 [ 4368.566328][ T253] ret_from_fork_asm+0x1a/0x30 [ 4368.566328][ T253] [ 4368.569733][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4368.569733][ T253] netdev_get_by_index+0x5e/0x80 [ 4368.569733][ T253] fib6_nh_init+0x3d8/0x1580 [ 4368.569733][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4368.569733][ T253] ip6_route_add+0x1c/0x140 [ 4368.569733][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4368.569733][ T253] inet6_addr_add+0x4f8/0xa40 [ 4368.569733][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4368.569733][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4368.569733][ T253] netlink_rcv_skb+0x130/0x360 [ 4368.569733][ T253] netlink_unicast+0x449/0x710 [ 4368.569733][ T253] netlink_sendmsg+0x723/0xbe0 [ 4368.569733][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4368.569733][ T253] ___sys_sendmsg+0xee/0x170 [ 4368.569733][ T253] __sys_sendmsg+0xcd/0x170 [ 4368.569733][ T253] do_syscall_64+0xc6/0x1e0 [ 4368.569733][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4368.569733][ T253] [ 4368.573213][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4368.573213][ T253] netdev_get_by_index+0x5e/0x80 [ 4368.573213][ T253] fib6_nh_init+0x3d8/0x1580 [ 4368.573213][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4368.573213][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4368.573213][ T253] ipv6_add_addr+0x411/0x2000 [ 4368.573213][ T253] inet6_addr_add+0x30e/0xa40 [ 4368.573213][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4368.573213][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4368.573213][ T253] netlink_rcv_skb+0x130/0x360 [ 4368.573213][ T253] netlink_unicast+0x449/0x710 [ 4368.573213][ T253] netlink_sendmsg+0x723/0xbe0 [ 4368.573213][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4368.573213][ T253] ___sys_sendmsg+0xee/0x170 [ 4368.573213][ T253] __sys_sendmsg+0xcd/0x170 [ 4368.573213][ T253] do_syscall_64+0xc6/0x1e0 [ 4368.573213][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4368.573213][ T253] [ 4368.576803][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4368.576803][ T253] netdev_get_by_index+0x5e/0x80 [ 4368.576803][ T253] fib6_nh_init+0x3d8/0x1580 [ 4368.576803][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4368.576803][ T253] ip6_route_add+0x1c/0x140 [ 4368.576803][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4368.576803][ T253] addrconf_add_dev+0xe2/0x170 [ 4368.576803][ T253] inet6_addr_add+0x12f/0xa40 [ 4368.576803][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4368.576803][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4368.576803][ T253] netlink_rcv_skb+0x130/0x360 [ 4368.576803][ T253] netlink_unicast+0x449/0x710 [ 4368.576803][ T253] netlink_sendmsg+0x723/0xbe0 [ 4368.576803][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4368.576803][ T253] ___sys_sendmsg+0xee/0x170 [ 4368.576803][ T253] __sys_sendmsg+0xcd/0x170 [ 4368.576803][ T253] do_syscall_64+0xc6/0x1e0 [ 4368.576803][ T253] [ 4368.580235][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4368.580235][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4368.580235][ T253] ipv6_find_idev+0x102/0x170 [ 4368.580235][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4368.580235][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4368.580235][ T253] netlink_rcv_skb+0x130/0x360 [ 4368.580235][ T253] netlink_unicast+0x449/0x710 [ 4368.580235][ T253] netlink_sendmsg+0x723/0xbe0 [ 4368.580235][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4368.580235][ T253] ___sys_sendmsg+0xee/0x170 [ 4368.580235][ T253] __sys_sendmsg+0xcd/0x170 [ 4368.580235][ T253] do_syscall_64+0xc6/0x1e0 [ 4368.580235][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4368.580235][ T253] [ 4368.582987][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4368.582987][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4368.582987][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4368.582987][ T253] ipv6_find_idev+0x102/0x170 [ 4368.582987][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4368.582987][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4368.582987][ T253] netlink_rcv_skb+0x130/0x360 [ 4368.582987][ T253] netlink_unicast+0x449/0x710 [ 4368.582987][ T253] netlink_sendmsg+0x723/0xbe0 [ 4368.582987][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4368.582987][ T253] ___sys_sendmsg+0xee/0x170 [ 4368.582987][ T253] __sys_sendmsg+0xcd/0x170 [ 4368.582987][ T253] do_syscall_64+0xc6/0x1e0 [ 4368.582987][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4368.582987][ T253] [ 4378.834321][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4378.834812][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4378.834812][ T253] dst_init+0x84/0x4a0 [ 4378.834812][ T253] dst_alloc+0x97/0x150 [ 4378.834812][ T253] ip6_dst_alloc+0x23/0x90 [ 4378.834812][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4378.834812][ T253] ip6_pol_route+0x56f/0x840 [ 4378.834812][ T253] fib6_rule_lookup+0x334/0x630 [ 4378.834812][ T253] ip6_route_output_flags+0x259/0x480 [ 4378.834812][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4378.834812][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4378.834812][ T253] netlink_rcv_skb+0x130/0x360 [ 4378.834812][ T253] netlink_unicast+0x449/0x710 [ 4378.834812][ T253] netlink_sendmsg+0x723/0xbe0 [ 4378.834812][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4378.834812][ T253] ___sys_sendmsg+0xee/0x170 [ 4378.834812][ T253] __sys_sendmsg+0xcd/0x170 [ 4378.834812][ T253] do_syscall_64+0xc6/0x1e0 [ 4378.834812][ T253] [ 4378.837555][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4378.837555][ T253] netdev_get_by_index+0x5e/0x80 [ 4378.837555][ T253] fib6_nh_init+0x3d8/0x1580 [ 4378.837555][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4378.837555][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4378.837555][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4378.837555][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4378.837555][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4378.837555][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4378.837555][ T253] addrconf_dad_begin+0x310/0x670 [ 4378.837555][ T253] addrconf_dad_work+0x10b/0xab0 [ 4378.837555][ T253] process_one_work+0x84d/0x18a0 [ 4378.837555][ T253] worker_thread+0x587/0xd30 [ 4378.837555][ T253] kthread+0x28a/0x350 [ 4378.837555][ T253] ret_from_fork+0x31/0x70 [ 4378.837555][ T253] ret_from_fork_asm+0x1a/0x30 [ 4378.837555][ T253] [ 4378.839708][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4378.839708][ T253] netdev_get_by_index+0x5e/0x80 [ 4378.839708][ T253] fib6_nh_init+0x3d8/0x1580 [ 4378.839708][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4378.839708][ T253] ip6_route_add+0x1c/0x140 [ 4378.839708][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4378.839708][ T253] inet6_addr_add+0x4f8/0xa40 [ 4378.839708][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4378.839708][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4378.839708][ T253] netlink_rcv_skb+0x130/0x360 [ 4378.839708][ T253] netlink_unicast+0x449/0x710 [ 4378.839708][ T253] netlink_sendmsg+0x723/0xbe0 [ 4378.839708][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4378.839708][ T253] ___sys_sendmsg+0xee/0x170 [ 4378.839708][ T253] __sys_sendmsg+0xcd/0x170 [ 4378.839708][ T253] do_syscall_64+0xc6/0x1e0 [ 4378.839708][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4378.839708][ T253] [ 4378.841937][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4378.841937][ T253] netdev_get_by_index+0x5e/0x80 [ 4378.841937][ T253] fib6_nh_init+0x3d8/0x1580 [ 4378.841937][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4378.841937][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4378.841937][ T253] ipv6_add_addr+0x411/0x2000 [ 4378.841937][ T253] inet6_addr_add+0x30e/0xa40 [ 4378.841937][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4378.841937][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4378.841937][ T253] netlink_rcv_skb+0x130/0x360 [ 4378.841937][ T253] netlink_unicast+0x449/0x710 [ 4378.841937][ T253] netlink_sendmsg+0x723/0xbe0 [ 4378.841937][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4378.841937][ T253] ___sys_sendmsg+0xee/0x170 [ 4378.841937][ T253] __sys_sendmsg+0xcd/0x170 [ 4378.841937][ T253] do_syscall_64+0xc6/0x1e0 [ 4378.841937][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4378.841937][ T253] [ 4378.844172][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4378.844172][ T253] netdev_get_by_index+0x5e/0x80 [ 4378.844172][ T253] fib6_nh_init+0x3d8/0x1580 [ 4378.844172][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4378.844172][ T253] ip6_route_add+0x1c/0x140 [ 4378.844172][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4378.844172][ T253] addrconf_add_dev+0xe2/0x170 [ 4378.844172][ T253] inet6_addr_add+0x12f/0xa40 [ 4378.844172][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4378.844172][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4378.844172][ T253] netlink_rcv_skb+0x130/0x360 [ 4378.844172][ T253] netlink_unicast+0x449/0x710 [ 4378.844172][ T253] netlink_sendmsg+0x723/0xbe0 [ 4378.844172][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4378.844172][ T253] ___sys_sendmsg+0xee/0x170 [ 4378.844172][ T253] __sys_sendmsg+0xcd/0x170 [ 4378.844172][ T253] do_syscall_64+0xc6/0x1e0 [ 4378.844172][ T253] [ 4378.846368][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4378.846368][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4378.846368][ T253] ipv6_find_idev+0x102/0x170 [ 4378.846368][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4378.846368][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4378.846368][ T253] netlink_rcv_skb+0x130/0x360 [ 4378.846368][ T253] netlink_unicast+0x449/0x710 [ 4378.846368][ T253] netlink_sendmsg+0x723/0xbe0 [ 4378.846368][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4378.846368][ T253] ___sys_sendmsg+0xee/0x170 [ 4378.846368][ T253] __sys_sendmsg+0xcd/0x170 [ 4378.846368][ T253] do_syscall_64+0xc6/0x1e0 [ 4378.846368][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4378.846368][ T253] [ 4378.848089][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4378.848089][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4378.848089][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4378.848089][ T253] ipv6_find_idev+0x102/0x170 [ 4378.848089][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4378.848089][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4378.848089][ T253] netlink_rcv_skb+0x130/0x360 [ 4378.848089][ T253] netlink_unicast+0x449/0x710 [ 4378.848089][ T253] netlink_sendmsg+0x723/0xbe0 [ 4378.848089][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4378.848089][ T253] ___sys_sendmsg+0xee/0x170 [ 4378.848089][ T253] __sys_sendmsg+0xcd/0x170 [ 4378.848089][ T253] do_syscall_64+0xc6/0x1e0 [ 4378.848089][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4378.848089][ T253] [ 4389.098337][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4389.098814][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4389.098814][ T253] dst_init+0x84/0x4a0 [ 4389.098814][ T253] dst_alloc+0x97/0x150 [ 4389.098814][ T253] ip6_dst_alloc+0x23/0x90 [ 4389.098814][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4389.098814][ T253] ip6_pol_route+0x56f/0x840 [ 4389.098814][ T253] fib6_rule_lookup+0x334/0x630 [ 4389.098814][ T253] ip6_route_output_flags+0x259/0x480 [ 4389.098814][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4389.098814][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4389.098814][ T253] netlink_rcv_skb+0x130/0x360 [ 4389.098814][ T253] netlink_unicast+0x449/0x710 [ 4389.098814][ T253] netlink_sendmsg+0x723/0xbe0 [ 4389.098814][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4389.098814][ T253] ___sys_sendmsg+0xee/0x170 [ 4389.098814][ T253] __sys_sendmsg+0xcd/0x170 [ 4389.098814][ T253] do_syscall_64+0xc6/0x1e0 [ 4389.098814][ T253] [ 4389.101025][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4389.101025][ T253] netdev_get_by_index+0x5e/0x80 [ 4389.101025][ T253] fib6_nh_init+0x3d8/0x1580 [ 4389.101025][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4389.101025][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4389.101025][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4389.101025][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4389.101025][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4389.101025][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4389.101025][ T253] addrconf_dad_begin+0x310/0x670 [ 4389.101025][ T253] addrconf_dad_work+0x10b/0xab0 [ 4389.101025][ T253] process_one_work+0x84d/0x18a0 [ 4389.101025][ T253] worker_thread+0x587/0xd30 [ 4389.101025][ T253] kthread+0x28a/0x350 [ 4389.101025][ T253] ret_from_fork+0x31/0x70 [ 4389.101025][ T253] ret_from_fork_asm+0x1a/0x30 [ 4389.101025][ T253] [ 4389.103167][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4389.103167][ T253] netdev_get_by_index+0x5e/0x80 [ 4389.103167][ T253] fib6_nh_init+0x3d8/0x1580 [ 4389.103167][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4389.103167][ T253] ip6_route_add+0x1c/0x140 [ 4389.103167][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4389.103167][ T253] inet6_addr_add+0x4f8/0xa40 [ 4389.103167][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4389.103167][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4389.103167][ T253] netlink_rcv_skb+0x130/0x360 [ 4389.103167][ T253] netlink_unicast+0x449/0x710 [ 4389.103167][ T253] netlink_sendmsg+0x723/0xbe0 [ 4389.103167][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4389.103167][ T253] ___sys_sendmsg+0xee/0x170 [ 4389.103167][ T253] __sys_sendmsg+0xcd/0x170 [ 4389.103167][ T253] do_syscall_64+0xc6/0x1e0 [ 4389.103167][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4389.103167][ T253] [ 4389.105412][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4389.105412][ T253] netdev_get_by_index+0x5e/0x80 [ 4389.105412][ T253] fib6_nh_init+0x3d8/0x1580 [ 4389.105412][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4389.105412][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4389.105412][ T253] ipv6_add_addr+0x411/0x2000 [ 4389.105412][ T253] inet6_addr_add+0x30e/0xa40 [ 4389.105412][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4389.105412][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4389.105412][ T253] netlink_rcv_skb+0x130/0x360 [ 4389.105412][ T253] netlink_unicast+0x449/0x710 [ 4389.105412][ T253] netlink_sendmsg+0x723/0xbe0 [ 4389.105412][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4389.105412][ T253] ___sys_sendmsg+0xee/0x170 [ 4389.105412][ T253] __sys_sendmsg+0xcd/0x170 [ 4389.105412][ T253] do_syscall_64+0xc6/0x1e0 [ 4389.105412][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4389.105412][ T253] [ 4389.107660][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4389.107660][ T253] netdev_get_by_index+0x5e/0x80 [ 4389.107660][ T253] fib6_nh_init+0x3d8/0x1580 [ 4389.107660][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4389.107660][ T253] ip6_route_add+0x1c/0x140 [ 4389.107660][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4389.107660][ T253] addrconf_add_dev+0xe2/0x170 [ 4389.107660][ T253] inet6_addr_add+0x12f/0xa40 [ 4389.107660][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4389.107660][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4389.107660][ T253] netlink_rcv_skb+0x130/0x360 [ 4389.107660][ T253] netlink_unicast+0x449/0x710 [ 4389.107660][ T253] netlink_sendmsg+0x723/0xbe0 [ 4389.107660][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4389.107660][ T253] ___sys_sendmsg+0xee/0x170 [ 4389.107660][ T253] __sys_sendmsg+0xcd/0x170 [ 4389.107660][ T253] do_syscall_64+0xc6/0x1e0 [ 4389.107660][ T253] [ 4389.109879][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4389.109879][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4389.109879][ T253] ipv6_find_idev+0x102/0x170 [ 4389.109879][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4389.109879][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4389.109879][ T253] netlink_rcv_skb+0x130/0x360 [ 4389.109879][ T253] netlink_unicast+0x449/0x710 [ 4389.109879][ T253] netlink_sendmsg+0x723/0xbe0 [ 4389.109879][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4389.109879][ T253] ___sys_sendmsg+0xee/0x170 [ 4389.109879][ T253] __sys_sendmsg+0xcd/0x170 [ 4389.109879][ T253] do_syscall_64+0xc6/0x1e0 [ 4389.109879][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4389.109879][ T253] [ 4389.111601][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4389.111601][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4389.111601][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4389.111601][ T253] ipv6_find_idev+0x102/0x170 [ 4389.111601][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4389.111601][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4389.111601][ T253] netlink_rcv_skb+0x130/0x360 [ 4389.111601][ T253] netlink_unicast+0x449/0x710 [ 4389.111601][ T253] netlink_sendmsg+0x723/0xbe0 [ 4389.111601][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4389.111601][ T253] ___sys_sendmsg+0xee/0x170 [ 4389.111601][ T253] __sys_sendmsg+0xcd/0x170 [ 4389.111601][ T253] do_syscall_64+0xc6/0x1e0 [ 4389.111601][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4389.111601][ T253] [ 4399.362278][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4399.362925][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4399.362925][ T253] dst_init+0x84/0x4a0 [ 4399.362925][ T253] dst_alloc+0x97/0x150 [ 4399.362925][ T253] ip6_dst_alloc+0x23/0x90 [ 4399.362925][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4399.362925][ T253] ip6_pol_route+0x56f/0x840 [ 4399.362925][ T253] fib6_rule_lookup+0x334/0x630 [ 4399.362925][ T253] ip6_route_output_flags+0x259/0x480 [ 4399.362925][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4399.362925][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4399.362925][ T253] netlink_rcv_skb+0x130/0x360 [ 4399.362925][ T253] netlink_unicast+0x449/0x710 [ 4399.362925][ T253] netlink_sendmsg+0x723/0xbe0 [ 4399.362925][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4399.362925][ T253] ___sys_sendmsg+0xee/0x170 [ 4399.362925][ T253] __sys_sendmsg+0xcd/0x170 [ 4399.362925][ T253] do_syscall_64+0xc6/0x1e0 [ 4399.362925][ T253] [ 4399.366311][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4399.366311][ T253] netdev_get_by_index+0x5e/0x80 [ 4399.366311][ T253] fib6_nh_init+0x3d8/0x1580 [ 4399.366311][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4399.366311][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4399.366311][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4399.366311][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4399.366311][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4399.366311][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4399.366311][ T253] addrconf_dad_begin+0x310/0x670 [ 4399.366311][ T253] addrconf_dad_work+0x10b/0xab0 [ 4399.366311][ T253] process_one_work+0x84d/0x18a0 [ 4399.366311][ T253] worker_thread+0x587/0xd30 [ 4399.366311][ T253] kthread+0x28a/0x350 [ 4399.366311][ T253] ret_from_fork+0x31/0x70 [ 4399.366311][ T253] ret_from_fork_asm+0x1a/0x30 [ 4399.366311][ T253] [ 4399.369483][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4399.369483][ T253] netdev_get_by_index+0x5e/0x80 [ 4399.369483][ T253] fib6_nh_init+0x3d8/0x1580 [ 4399.369483][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4399.369483][ T253] ip6_route_add+0x1c/0x140 [ 4399.369483][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4399.369483][ T253] inet6_addr_add+0x4f8/0xa40 [ 4399.369483][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4399.369483][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4399.369483][ T253] netlink_rcv_skb+0x130/0x360 [ 4399.369483][ T253] netlink_unicast+0x449/0x710 [ 4399.369483][ T253] netlink_sendmsg+0x723/0xbe0 [ 4399.369483][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4399.369483][ T253] ___sys_sendmsg+0xee/0x170 [ 4399.369483][ T253] __sys_sendmsg+0xcd/0x170 [ 4399.369483][ T253] do_syscall_64+0xc6/0x1e0 [ 4399.369483][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4399.369483][ T253] [ 4399.372925][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4399.372925][ T253] netdev_get_by_index+0x5e/0x80 [ 4399.372925][ T253] fib6_nh_init+0x3d8/0x1580 [ 4399.372925][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4399.372925][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4399.372925][ T253] ipv6_add_addr+0x411/0x2000 [ 4399.372925][ T253] inet6_addr_add+0x30e/0xa40 [ 4399.372925][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4399.372925][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4399.372925][ T253] netlink_rcv_skb+0x130/0x360 [ 4399.372925][ T253] netlink_unicast+0x449/0x710 [ 4399.372925][ T253] netlink_sendmsg+0x723/0xbe0 [ 4399.372925][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4399.372925][ T253] ___sys_sendmsg+0xee/0x170 [ 4399.372925][ T253] __sys_sendmsg+0xcd/0x170 [ 4399.372925][ T253] do_syscall_64+0xc6/0x1e0 [ 4399.372925][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4399.372925][ T253] [ 4399.375198][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4399.375198][ T253] netdev_get_by_index+0x5e/0x80 [ 4399.375198][ T253] fib6_nh_init+0x3d8/0x1580 [ 4399.375198][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4399.375198][ T253] ip6_route_add+0x1c/0x140 [ 4399.375198][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4399.375198][ T253] addrconf_add_dev+0xe2/0x170 [ 4399.375198][ T253] inet6_addr_add+0x12f/0xa40 [ 4399.375198][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4399.375198][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4399.375198][ T253] netlink_rcv_skb+0x130/0x360 [ 4399.375198][ T253] netlink_unicast+0x449/0x710 [ 4399.375198][ T253] netlink_sendmsg+0x723/0xbe0 [ 4399.375198][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4399.375198][ T253] ___sys_sendmsg+0xee/0x170 [ 4399.375198][ T253] __sys_sendmsg+0xcd/0x170 [ 4399.375198][ T253] do_syscall_64+0xc6/0x1e0 [ 4399.375198][ T253] [ 4399.377713][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4399.377713][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4399.377713][ T253] ipv6_find_idev+0x102/0x170 [ 4399.377713][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4399.377713][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4399.377713][ T253] netlink_rcv_skb+0x130/0x360 [ 4399.377713][ T253] netlink_unicast+0x449/0x710 [ 4399.377713][ T253] netlink_sendmsg+0x723/0xbe0 [ 4399.377713][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4399.377713][ T253] ___sys_sendmsg+0xee/0x170 [ 4399.377713][ T253] __sys_sendmsg+0xcd/0x170 [ 4399.377713][ T253] do_syscall_64+0xc6/0x1e0 [ 4399.377713][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4399.377713][ T253] [ 4399.379853][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4399.379853][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4399.379853][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4399.379853][ T253] ipv6_find_idev+0x102/0x170 [ 4399.379853][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4399.379853][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4399.379853][ T253] netlink_rcv_skb+0x130/0x360 [ 4399.379853][ T253] netlink_unicast+0x449/0x710 [ 4399.379853][ T253] netlink_sendmsg+0x723/0xbe0 [ 4399.379853][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4399.379853][ T253] ___sys_sendmsg+0xee/0x170 [ 4399.379853][ T253] __sys_sendmsg+0xcd/0x170 [ 4399.379853][ T253] do_syscall_64+0xc6/0x1e0 [ 4399.379853][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4399.379853][ T253] [ 4409.410306][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4409.410792][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4409.410792][ T253] dst_init+0x84/0x4a0 [ 4409.410792][ T253] dst_alloc+0x97/0x150 [ 4409.410792][ T253] ip6_dst_alloc+0x23/0x90 [ 4409.410792][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4409.410792][ T253] ip6_pol_route+0x56f/0x840 [ 4409.410792][ T253] fib6_rule_lookup+0x334/0x630 [ 4409.410792][ T253] ip6_route_output_flags+0x259/0x480 [ 4409.410792][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4409.410792][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4409.410792][ T253] netlink_rcv_skb+0x130/0x360 [ 4409.410792][ T253] netlink_unicast+0x449/0x710 [ 4409.410792][ T253] netlink_sendmsg+0x723/0xbe0 [ 4409.410792][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4409.410792][ T253] ___sys_sendmsg+0xee/0x170 [ 4409.410792][ T253] __sys_sendmsg+0xcd/0x170 [ 4409.410792][ T253] do_syscall_64+0xc6/0x1e0 [ 4409.410792][ T253] [ 4409.413013][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4409.413013][ T253] netdev_get_by_index+0x5e/0x80 [ 4409.413013][ T253] fib6_nh_init+0x3d8/0x1580 [ 4409.413013][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4409.413013][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4409.413013][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4409.413013][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4409.413013][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4409.413013][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4409.413013][ T253] addrconf_dad_begin+0x310/0x670 [ 4409.413013][ T253] addrconf_dad_work+0x10b/0xab0 [ 4409.413013][ T253] process_one_work+0x84d/0x18a0 [ 4409.413013][ T253] worker_thread+0x587/0xd30 [ 4409.413013][ T253] kthread+0x28a/0x350 [ 4409.413013][ T253] ret_from_fork+0x31/0x70 [ 4409.413013][ T253] ret_from_fork_asm+0x1a/0x30 [ 4409.413013][ T253] [ 4409.415179][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4409.415179][ T253] netdev_get_by_index+0x5e/0x80 [ 4409.415179][ T253] fib6_nh_init+0x3d8/0x1580 [ 4409.415179][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4409.415179][ T253] ip6_route_add+0x1c/0x140 [ 4409.415179][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4409.415179][ T253] inet6_addr_add+0x4f8/0xa40 [ 4409.415179][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4409.415179][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4409.415179][ T253] netlink_rcv_skb+0x130/0x360 [ 4409.415179][ T253] netlink_unicast+0x449/0x710 [ 4409.415179][ T253] netlink_sendmsg+0x723/0xbe0 [ 4409.415179][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4409.415179][ T253] ___sys_sendmsg+0xee/0x170 [ 4409.415179][ T253] __sys_sendmsg+0xcd/0x170 [ 4409.415179][ T253] do_syscall_64+0xc6/0x1e0 [ 4409.415179][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4409.415179][ T253] [ 4409.417447][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4409.417447][ T253] netdev_get_by_index+0x5e/0x80 [ 4409.417447][ T253] fib6_nh_init+0x3d8/0x1580 [ 4409.417447][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4409.417447][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4409.417447][ T253] ipv6_add_addr+0x411/0x2000 [ 4409.417447][ T253] inet6_addr_add+0x30e/0xa40 [ 4409.417447][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4409.417447][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4409.417447][ T253] netlink_rcv_skb+0x130/0x360 [ 4409.417447][ T253] netlink_unicast+0x449/0x710 [ 4409.417447][ T253] netlink_sendmsg+0x723/0xbe0 [ 4409.417447][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4409.417447][ T253] ___sys_sendmsg+0xee/0x170 [ 4409.417447][ T253] __sys_sendmsg+0xcd/0x170 [ 4409.417447][ T253] do_syscall_64+0xc6/0x1e0 [ 4409.417447][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4409.417447][ T253] [ 4409.419721][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4409.419721][ T253] netdev_get_by_index+0x5e/0x80 [ 4409.419721][ T253] fib6_nh_init+0x3d8/0x1580 [ 4409.419721][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4409.419721][ T253] ip6_route_add+0x1c/0x140 [ 4409.419721][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4409.419721][ T253] addrconf_add_dev+0xe2/0x170 [ 4409.419721][ T253] inet6_addr_add+0x12f/0xa40 [ 4409.419721][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4409.419721][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4409.419721][ T253] netlink_rcv_skb+0x130/0x360 [ 4409.419721][ T253] netlink_unicast+0x449/0x710 [ 4409.419721][ T253] netlink_sendmsg+0x723/0xbe0 [ 4409.419721][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4409.419721][ T253] ___sys_sendmsg+0xee/0x170 [ 4409.419721][ T253] __sys_sendmsg+0xcd/0x170 [ 4409.419721][ T253] do_syscall_64+0xc6/0x1e0 [ 4409.419721][ T253] [ 4409.421950][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4409.421950][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4409.421950][ T253] ipv6_find_idev+0x102/0x170 [ 4409.421950][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4409.421950][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4409.421950][ T253] netlink_rcv_skb+0x130/0x360 [ 4409.421950][ T253] netlink_unicast+0x449/0x710 [ 4409.421950][ T253] netlink_sendmsg+0x723/0xbe0 [ 4409.421950][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4409.421950][ T253] ___sys_sendmsg+0xee/0x170 [ 4409.421950][ T253] __sys_sendmsg+0xcd/0x170 [ 4409.421950][ T253] do_syscall_64+0xc6/0x1e0 [ 4409.421950][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4409.421950][ T253] [ 4409.423696][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4409.423696][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4409.423696][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4409.423696][ T253] ipv6_find_idev+0x102/0x170 [ 4409.423696][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4409.423696][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4409.423696][ T253] netlink_rcv_skb+0x130/0x360 [ 4409.423696][ T253] netlink_unicast+0x449/0x710 [ 4409.423696][ T253] netlink_sendmsg+0x723/0xbe0 [ 4409.423696][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4409.423696][ T253] ___sys_sendmsg+0xee/0x170 [ 4409.423696][ T253] __sys_sendmsg+0xcd/0x170 [ 4409.423696][ T253] do_syscall_64+0xc6/0x1e0 [ 4409.423696][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4409.423696][ T253] [ 4419.450251][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4419.450746][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4419.450746][ T253] dst_init+0x84/0x4a0 [ 4419.450746][ T253] dst_alloc+0x97/0x150 [ 4419.450746][ T253] ip6_dst_alloc+0x23/0x90 [ 4419.450746][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4419.450746][ T253] ip6_pol_route+0x56f/0x840 [ 4419.450746][ T253] fib6_rule_lookup+0x334/0x630 [ 4419.450746][ T253] ip6_route_output_flags+0x259/0x480 [ 4419.450746][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4419.450746][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4419.450746][ T253] netlink_rcv_skb+0x130/0x360 [ 4419.450746][ T253] netlink_unicast+0x449/0x710 [ 4419.450746][ T253] netlink_sendmsg+0x723/0xbe0 [ 4419.450746][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4419.450746][ T253] ___sys_sendmsg+0xee/0x170 [ 4419.450746][ T253] __sys_sendmsg+0xcd/0x170 [ 4419.450746][ T253] do_syscall_64+0xc6/0x1e0 [ 4419.450746][ T253] [ 4419.452964][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4419.452964][ T253] netdev_get_by_index+0x5e/0x80 [ 4419.452964][ T253] fib6_nh_init+0x3d8/0x1580 [ 4419.452964][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4419.452964][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4419.452964][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4419.452964][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4419.452964][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4419.452964][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4419.452964][ T253] addrconf_dad_begin+0x310/0x670 [ 4419.452964][ T253] addrconf_dad_work+0x10b/0xab0 [ 4419.452964][ T253] process_one_work+0x84d/0x18a0 [ 4419.452964][ T253] worker_thread+0x587/0xd30 [ 4419.452964][ T253] kthread+0x28a/0x350 [ 4419.452964][ T253] ret_from_fork+0x31/0x70 [ 4419.452964][ T253] ret_from_fork_asm+0x1a/0x30 [ 4419.452964][ T253] [ 4419.455136][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4419.455136][ T253] netdev_get_by_index+0x5e/0x80 [ 4419.455136][ T253] fib6_nh_init+0x3d8/0x1580 [ 4419.455136][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4419.455136][ T253] ip6_route_add+0x1c/0x140 [ 4419.455136][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4419.455136][ T253] inet6_addr_add+0x4f8/0xa40 [ 4419.455136][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4419.455136][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4419.455136][ T253] netlink_rcv_skb+0x130/0x360 [ 4419.455136][ T253] netlink_unicast+0x449/0x710 [ 4419.455136][ T253] netlink_sendmsg+0x723/0xbe0 [ 4419.455136][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4419.455136][ T253] ___sys_sendmsg+0xee/0x170 [ 4419.455136][ T253] __sys_sendmsg+0xcd/0x170 [ 4419.455136][ T253] do_syscall_64+0xc6/0x1e0 [ 4419.455136][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4419.455136][ T253] [ 4419.457399][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4419.457399][ T253] netdev_get_by_index+0x5e/0x80 [ 4419.457399][ T253] fib6_nh_init+0x3d8/0x1580 [ 4419.457399][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4419.457399][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4419.457399][ T253] ipv6_add_addr+0x411/0x2000 [ 4419.457399][ T253] inet6_addr_add+0x30e/0xa40 [ 4419.457399][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4419.457399][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4419.457399][ T253] netlink_rcv_skb+0x130/0x360 [ 4419.457399][ T253] netlink_unicast+0x449/0x710 [ 4419.457399][ T253] netlink_sendmsg+0x723/0xbe0 [ 4419.457399][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4419.457399][ T253] ___sys_sendmsg+0xee/0x170 [ 4419.457399][ T253] __sys_sendmsg+0xcd/0x170 [ 4419.457399][ T253] do_syscall_64+0xc6/0x1e0 [ 4419.457399][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4419.457399][ T253] [ 4419.459685][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4419.459685][ T253] netdev_get_by_index+0x5e/0x80 [ 4419.459685][ T253] fib6_nh_init+0x3d8/0x1580 [ 4419.459685][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4419.459685][ T253] ip6_route_add+0x1c/0x140 [ 4419.459685][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4419.459685][ T253] addrconf_add_dev+0xe2/0x170 [ 4419.459685][ T253] inet6_addr_add+0x12f/0xa40 [ 4419.459685][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4419.459685][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4419.459685][ T253] netlink_rcv_skb+0x130/0x360 [ 4419.459685][ T253] netlink_unicast+0x449/0x710 [ 4419.459685][ T253] netlink_sendmsg+0x723/0xbe0 [ 4419.459685][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4419.459685][ T253] ___sys_sendmsg+0xee/0x170 [ 4419.459685][ T253] __sys_sendmsg+0xcd/0x170 [ 4419.459685][ T253] do_syscall_64+0xc6/0x1e0 [ 4419.459685][ T253] [ 4419.461898][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4419.461898][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4419.461898][ T253] ipv6_find_idev+0x102/0x170 [ 4419.461898][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4419.461898][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4419.461898][ T253] netlink_rcv_skb+0x130/0x360 [ 4419.461898][ T253] netlink_unicast+0x449/0x710 [ 4419.461898][ T253] netlink_sendmsg+0x723/0xbe0 [ 4419.461898][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4419.461898][ T253] ___sys_sendmsg+0xee/0x170 [ 4419.461898][ T253] __sys_sendmsg+0xcd/0x170 [ 4419.461898][ T253] do_syscall_64+0xc6/0x1e0 [ 4419.461898][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4419.461898][ T253] [ 4419.463634][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4419.463634][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4419.463634][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4419.463634][ T253] ipv6_find_idev+0x102/0x170 [ 4419.463634][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4419.463634][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4419.463634][ T253] netlink_rcv_skb+0x130/0x360 [ 4419.463634][ T253] netlink_unicast+0x449/0x710 [ 4419.463634][ T253] netlink_sendmsg+0x723/0xbe0 [ 4419.463634][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4419.463634][ T253] ___sys_sendmsg+0xee/0x170 [ 4419.463634][ T253] __sys_sendmsg+0xcd/0x170 [ 4419.463634][ T253] do_syscall_64+0xc6/0x1e0 [ 4419.463634][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4419.463634][ T253] [ 4429.706272][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4429.707006][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4429.707006][ T253] dst_init+0x84/0x4a0 [ 4429.707006][ T253] dst_alloc+0x97/0x150 [ 4429.707006][ T253] ip6_dst_alloc+0x23/0x90 [ 4429.707006][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4429.707006][ T253] ip6_pol_route+0x56f/0x840 [ 4429.707006][ T253] fib6_rule_lookup+0x334/0x630 [ 4429.707006][ T253] ip6_route_output_flags+0x259/0x480 [ 4429.707006][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4429.707006][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4429.707006][ T253] netlink_rcv_skb+0x130/0x360 [ 4429.707006][ T253] netlink_unicast+0x449/0x710 [ 4429.707006][ T253] netlink_sendmsg+0x723/0xbe0 [ 4429.707006][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4429.707006][ T253] ___sys_sendmsg+0xee/0x170 [ 4429.707006][ T253] __sys_sendmsg+0xcd/0x170 [ 4429.707006][ T253] do_syscall_64+0xc6/0x1e0 [ 4429.707006][ T253] [ 4429.711325][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4429.711325][ T253] netdev_get_by_index+0x5e/0x80 [ 4429.711325][ T253] fib6_nh_init+0x3d8/0x1580 [ 4429.711325][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4429.711325][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4429.711325][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4429.711325][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4429.711325][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4429.711325][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4429.711325][ T253] addrconf_dad_begin+0x310/0x670 [ 4429.711325][ T253] addrconf_dad_work+0x10b/0xab0 [ 4429.711325][ T253] process_one_work+0x84d/0x18a0 [ 4429.711325][ T253] worker_thread+0x587/0xd30 [ 4429.711325][ T253] kthread+0x28a/0x350 [ 4429.711325][ T253] ret_from_fork+0x31/0x70 [ 4429.711325][ T253] ret_from_fork_asm+0x1a/0x30 [ 4429.711325][ T253] [ 4429.715202][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4429.715202][ T253] netdev_get_by_index+0x5e/0x80 [ 4429.715202][ T253] fib6_nh_init+0x3d8/0x1580 [ 4429.715202][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4429.715202][ T253] ip6_route_add+0x1c/0x140 [ 4429.715202][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4429.715202][ T253] inet6_addr_add+0x4f8/0xa40 [ 4429.715202][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4429.715202][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4429.715202][ T253] netlink_rcv_skb+0x130/0x360 [ 4429.715202][ T253] netlink_unicast+0x449/0x710 [ 4429.715202][ T253] netlink_sendmsg+0x723/0xbe0 [ 4429.715202][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4429.715202][ T253] ___sys_sendmsg+0xee/0x170 [ 4429.715202][ T253] __sys_sendmsg+0xcd/0x170 [ 4429.715202][ T253] do_syscall_64+0xc6/0x1e0 [ 4429.715202][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4429.715202][ T253] [ 4429.719496][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4429.719496][ T253] netdev_get_by_index+0x5e/0x80 [ 4429.719496][ T253] fib6_nh_init+0x3d8/0x1580 [ 4429.719496][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4429.719496][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4429.719496][ T253] ipv6_add_addr+0x411/0x2000 [ 4429.719496][ T253] inet6_addr_add+0x30e/0xa40 [ 4429.719496][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4429.719496][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4429.719496][ T253] netlink_rcv_skb+0x130/0x360 [ 4429.719496][ T253] netlink_unicast+0x449/0x710 [ 4429.719496][ T253] netlink_sendmsg+0x723/0xbe0 [ 4429.719496][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4429.719496][ T253] ___sys_sendmsg+0xee/0x170 [ 4429.719496][ T253] __sys_sendmsg+0xcd/0x170 [ 4429.719496][ T253] do_syscall_64+0xc6/0x1e0 [ 4429.719496][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4429.719496][ T253] [ 4429.722329][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4429.722329][ T253] netdev_get_by_index+0x5e/0x80 [ 4429.722329][ T253] fib6_nh_init+0x3d8/0x1580 [ 4429.722329][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4429.722329][ T253] ip6_route_add+0x1c/0x140 [ 4429.722329][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4429.722329][ T253] addrconf_add_dev+0xe2/0x170 [ 4429.722329][ T253] inet6_addr_add+0x12f/0xa40 [ 4429.722329][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4429.722329][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4429.722329][ T253] netlink_rcv_skb+0x130/0x360 [ 4429.722329][ T253] netlink_unicast+0x449/0x710 [ 4429.722329][ T253] netlink_sendmsg+0x723/0xbe0 [ 4429.722329][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4429.722329][ T253] ___sys_sendmsg+0xee/0x170 [ 4429.722329][ T253] __sys_sendmsg+0xcd/0x170 [ 4429.722329][ T253] do_syscall_64+0xc6/0x1e0 [ 4429.722329][ T253] [ 4429.725517][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4429.725517][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4429.725517][ T253] ipv6_find_idev+0x102/0x170 [ 4429.725517][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4429.725517][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4429.725517][ T253] netlink_rcv_skb+0x130/0x360 [ 4429.725517][ T253] netlink_unicast+0x449/0x710 [ 4429.725517][ T253] netlink_sendmsg+0x723/0xbe0 [ 4429.725517][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4429.725517][ T253] ___sys_sendmsg+0xee/0x170 [ 4429.725517][ T253] __sys_sendmsg+0xcd/0x170 [ 4429.725517][ T253] do_syscall_64+0xc6/0x1e0 [ 4429.725517][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4429.725517][ T253] [ 4429.727870][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4429.727870][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4429.727870][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4429.727870][ T253] ipv6_find_idev+0x102/0x170 [ 4429.727870][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4429.727870][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4429.727870][ T253] netlink_rcv_skb+0x130/0x360 [ 4429.727870][ T253] netlink_unicast+0x449/0x710 [ 4429.727870][ T253] netlink_sendmsg+0x723/0xbe0 [ 4429.727870][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4429.727870][ T253] ___sys_sendmsg+0xee/0x170 [ 4429.727870][ T253] __sys_sendmsg+0xcd/0x170 [ 4429.727870][ T253] do_syscall_64+0xc6/0x1e0 [ 4429.727870][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4429.727870][ T253] [ 4439.810260][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4439.810739][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4439.810739][ T253] dst_init+0x84/0x4a0 [ 4439.810739][ T253] dst_alloc+0x97/0x150 [ 4439.810739][ T253] ip6_dst_alloc+0x23/0x90 [ 4439.810739][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4439.810739][ T253] ip6_pol_route+0x56f/0x840 [ 4439.810739][ T253] fib6_rule_lookup+0x334/0x630 [ 4439.810739][ T253] ip6_route_output_flags+0x259/0x480 [ 4439.810739][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4439.810739][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4439.810739][ T253] netlink_rcv_skb+0x130/0x360 [ 4439.810739][ T253] netlink_unicast+0x449/0x710 [ 4439.810739][ T253] netlink_sendmsg+0x723/0xbe0 [ 4439.810739][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4439.810739][ T253] ___sys_sendmsg+0xee/0x170 [ 4439.810739][ T253] __sys_sendmsg+0xcd/0x170 [ 4439.810739][ T253] do_syscall_64+0xc6/0x1e0 [ 4439.810739][ T253] [ 4439.812925][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4439.812925][ T253] netdev_get_by_index+0x5e/0x80 [ 4439.812925][ T253] fib6_nh_init+0x3d8/0x1580 [ 4439.812925][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4439.812925][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4439.812925][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4439.812925][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4439.812925][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4439.812925][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4439.812925][ T253] addrconf_dad_begin+0x310/0x670 [ 4439.812925][ T253] addrconf_dad_work+0x10b/0xab0 [ 4439.812925][ T253] process_one_work+0x84d/0x18a0 [ 4439.812925][ T253] worker_thread+0x587/0xd30 [ 4439.812925][ T253] kthread+0x28a/0x350 [ 4439.812925][ T253] ret_from_fork+0x31/0x70 [ 4439.812925][ T253] ret_from_fork_asm+0x1a/0x30 [ 4439.812925][ T253] [ 4439.815089][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4439.815089][ T253] netdev_get_by_index+0x5e/0x80 [ 4439.815089][ T253] fib6_nh_init+0x3d8/0x1580 [ 4439.815089][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4439.815089][ T253] ip6_route_add+0x1c/0x140 [ 4439.815089][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4439.815089][ T253] inet6_addr_add+0x4f8/0xa40 [ 4439.815089][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4439.815089][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4439.815089][ T253] netlink_rcv_skb+0x130/0x360 [ 4439.815089][ T253] netlink_unicast+0x449/0x710 [ 4439.815089][ T253] netlink_sendmsg+0x723/0xbe0 [ 4439.815089][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4439.815089][ T253] ___sys_sendmsg+0xee/0x170 [ 4439.815089][ T253] __sys_sendmsg+0xcd/0x170 [ 4439.815089][ T253] do_syscall_64+0xc6/0x1e0 [ 4439.815089][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4439.815089][ T253] [ 4439.817327][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4439.817327][ T253] netdev_get_by_index+0x5e/0x80 [ 4439.817327][ T253] fib6_nh_init+0x3d8/0x1580 [ 4439.817327][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4439.817327][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4439.817327][ T253] ipv6_add_addr+0x411/0x2000 [ 4439.817327][ T253] inet6_addr_add+0x30e/0xa40 [ 4439.817327][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4439.817327][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4439.817327][ T253] netlink_rcv_skb+0x130/0x360 [ 4439.817327][ T253] netlink_unicast+0x449/0x710 [ 4439.817327][ T253] netlink_sendmsg+0x723/0xbe0 [ 4439.817327][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4439.817327][ T253] ___sys_sendmsg+0xee/0x170 [ 4439.817327][ T253] __sys_sendmsg+0xcd/0x170 [ 4439.817327][ T253] do_syscall_64+0xc6/0x1e0 [ 4439.817327][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4439.817327][ T253] [ 4439.819624][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4439.819624][ T253] netdev_get_by_index+0x5e/0x80 [ 4439.819624][ T253] fib6_nh_init+0x3d8/0x1580 [ 4439.819624][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4439.819624][ T253] ip6_route_add+0x1c/0x140 [ 4439.819624][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4439.819624][ T253] addrconf_add_dev+0xe2/0x170 [ 4439.819624][ T253] inet6_addr_add+0x12f/0xa40 [ 4439.819624][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4439.819624][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4439.819624][ T253] netlink_rcv_skb+0x130/0x360 [ 4439.819624][ T253] netlink_unicast+0x449/0x710 [ 4439.819624][ T253] netlink_sendmsg+0x723/0xbe0 [ 4439.819624][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4439.819624][ T253] ___sys_sendmsg+0xee/0x170 [ 4439.819624][ T253] __sys_sendmsg+0xcd/0x170 [ 4439.819624][ T253] do_syscall_64+0xc6/0x1e0 [ 4439.819624][ T253] [ 4439.821825][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4439.821825][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4439.821825][ T253] ipv6_find_idev+0x102/0x170 [ 4439.821825][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4439.821825][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4439.821825][ T253] netlink_rcv_skb+0x130/0x360 [ 4439.821825][ T253] netlink_unicast+0x449/0x710 [ 4439.821825][ T253] netlink_sendmsg+0x723/0xbe0 [ 4439.821825][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4439.821825][ T253] ___sys_sendmsg+0xee/0x170 [ 4439.821825][ T253] __sys_sendmsg+0xcd/0x170 [ 4439.821825][ T253] do_syscall_64+0xc6/0x1e0 [ 4439.821825][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4439.821825][ T253] [ 4439.823577][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4439.823577][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4439.823577][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4439.823577][ T253] ipv6_find_idev+0x102/0x170 [ 4439.823577][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4439.823577][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4439.823577][ T253] netlink_rcv_skb+0x130/0x360 [ 4439.823577][ T253] netlink_unicast+0x449/0x710 [ 4439.823577][ T253] netlink_sendmsg+0x723/0xbe0 [ 4439.823577][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4439.823577][ T253] ___sys_sendmsg+0xee/0x170 [ 4439.823577][ T253] __sys_sendmsg+0xcd/0x170 [ 4439.823577][ T253] do_syscall_64+0xc6/0x1e0 [ 4439.823577][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4439.823577][ T253] [ 4449.922323][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4449.922801][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4449.922801][ T253] dst_init+0x84/0x4a0 [ 4449.922801][ T253] dst_alloc+0x97/0x150 [ 4449.922801][ T253] ip6_dst_alloc+0x23/0x90 [ 4449.922801][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4449.922801][ T253] ip6_pol_route+0x56f/0x840 [ 4449.922801][ T253] fib6_rule_lookup+0x334/0x630 [ 4449.922801][ T253] ip6_route_output_flags+0x259/0x480 [ 4449.922801][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4449.922801][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4449.922801][ T253] netlink_rcv_skb+0x130/0x360 [ 4449.922801][ T253] netlink_unicast+0x449/0x710 [ 4449.922801][ T253] netlink_sendmsg+0x723/0xbe0 [ 4449.922801][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4449.922801][ T253] ___sys_sendmsg+0xee/0x170 [ 4449.922801][ T253] __sys_sendmsg+0xcd/0x170 [ 4449.922801][ T253] do_syscall_64+0xc6/0x1e0 [ 4449.922801][ T253] [ 4449.925005][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4449.925005][ T253] netdev_get_by_index+0x5e/0x80 [ 4449.925005][ T253] fib6_nh_init+0x3d8/0x1580 [ 4449.925005][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4449.925005][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4449.925005][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4449.925005][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4449.925005][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4449.925005][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4449.925005][ T253] addrconf_dad_begin+0x310/0x670 [ 4449.925005][ T253] addrconf_dad_work+0x10b/0xab0 [ 4449.925005][ T253] process_one_work+0x84d/0x18a0 [ 4449.925005][ T253] worker_thread+0x587/0xd30 [ 4449.925005][ T253] kthread+0x28a/0x350 [ 4449.925005][ T253] ret_from_fork+0x31/0x70 [ 4449.925005][ T253] ret_from_fork_asm+0x1a/0x30 [ 4449.925005][ T253] [ 4449.927145][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4449.927145][ T253] netdev_get_by_index+0x5e/0x80 [ 4449.927145][ T253] fib6_nh_init+0x3d8/0x1580 [ 4449.927145][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4449.927145][ T253] ip6_route_add+0x1c/0x140 [ 4449.927145][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4449.927145][ T253] inet6_addr_add+0x4f8/0xa40 [ 4449.927145][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4449.927145][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4449.927145][ T253] netlink_rcv_skb+0x130/0x360 [ 4449.927145][ T253] netlink_unicast+0x449/0x710 [ 4449.927145][ T253] netlink_sendmsg+0x723/0xbe0 [ 4449.927145][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4449.927145][ T253] ___sys_sendmsg+0xee/0x170 [ 4449.927145][ T253] __sys_sendmsg+0xcd/0x170 [ 4449.927145][ T253] do_syscall_64+0xc6/0x1e0 [ 4449.927145][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4449.927145][ T253] [ 4449.929402][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4449.929402][ T253] netdev_get_by_index+0x5e/0x80 [ 4449.929402][ T253] fib6_nh_init+0x3d8/0x1580 [ 4449.929402][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4449.929402][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4449.929402][ T253] ipv6_add_addr+0x411/0x2000 [ 4449.929402][ T253] inet6_addr_add+0x30e/0xa40 [ 4449.929402][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4449.929402][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4449.929402][ T253] netlink_rcv_skb+0x130/0x360 [ 4449.929402][ T253] netlink_unicast+0x449/0x710 [ 4449.929402][ T253] netlink_sendmsg+0x723/0xbe0 [ 4449.929402][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4449.929402][ T253] ___sys_sendmsg+0xee/0x170 [ 4449.929402][ T253] __sys_sendmsg+0xcd/0x170 [ 4449.929402][ T253] do_syscall_64+0xc6/0x1e0 [ 4449.929402][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4449.929402][ T253] [ 4449.931630][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4449.931630][ T253] netdev_get_by_index+0x5e/0x80 [ 4449.931630][ T253] fib6_nh_init+0x3d8/0x1580 [ 4449.931630][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4449.931630][ T253] ip6_route_add+0x1c/0x140 [ 4449.931630][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4449.931630][ T253] addrconf_add_dev+0xe2/0x170 [ 4449.931630][ T253] inet6_addr_add+0x12f/0xa40 [ 4449.931630][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4449.931630][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4449.931630][ T253] netlink_rcv_skb+0x130/0x360 [ 4449.931630][ T253] netlink_unicast+0x449/0x710 [ 4449.931630][ T253] netlink_sendmsg+0x723/0xbe0 [ 4449.931630][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4449.931630][ T253] ___sys_sendmsg+0xee/0x170 [ 4449.931630][ T253] __sys_sendmsg+0xcd/0x170 [ 4449.931630][ T253] do_syscall_64+0xc6/0x1e0 [ 4449.931630][ T253] [ 4449.933818][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4449.933818][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4449.933818][ T253] ipv6_find_idev+0x102/0x170 [ 4449.933818][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4449.933818][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4449.933818][ T253] netlink_rcv_skb+0x130/0x360 [ 4449.933818][ T253] netlink_unicast+0x449/0x710 [ 4449.933818][ T253] netlink_sendmsg+0x723/0xbe0 [ 4449.933818][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4449.933818][ T253] ___sys_sendmsg+0xee/0x170 [ 4449.933818][ T253] __sys_sendmsg+0xcd/0x170 [ 4449.933818][ T253] do_syscall_64+0xc6/0x1e0 [ 4449.933818][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4449.933818][ T253] [ 4449.935536][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4449.935536][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4449.935536][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4449.935536][ T253] ipv6_find_idev+0x102/0x170 [ 4449.935536][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4449.935536][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4449.935536][ T253] netlink_rcv_skb+0x130/0x360 [ 4449.935536][ T253] netlink_unicast+0x449/0x710 [ 4449.935536][ T253] netlink_sendmsg+0x723/0xbe0 [ 4449.935536][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4449.935536][ T253] ___sys_sendmsg+0xee/0x170 [ 4449.935536][ T253] __sys_sendmsg+0xcd/0x170 [ 4449.935536][ T253] do_syscall_64+0xc6/0x1e0 [ 4449.935536][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4449.935536][ T253] [ 4460.178339][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4460.178827][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4460.178827][ T253] dst_init+0x84/0x4a0 [ 4460.178827][ T253] dst_alloc+0x97/0x150 [ 4460.178827][ T253] ip6_dst_alloc+0x23/0x90 [ 4460.178827][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4460.178827][ T253] ip6_pol_route+0x56f/0x840 [ 4460.178827][ T253] fib6_rule_lookup+0x334/0x630 [ 4460.178827][ T253] ip6_route_output_flags+0x259/0x480 [ 4460.178827][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4460.178827][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4460.178827][ T253] netlink_rcv_skb+0x130/0x360 [ 4460.178827][ T253] netlink_unicast+0x449/0x710 [ 4460.178827][ T253] netlink_sendmsg+0x723/0xbe0 [ 4460.178827][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4460.178827][ T253] ___sys_sendmsg+0xee/0x170 [ 4460.178827][ T253] __sys_sendmsg+0xcd/0x170 [ 4460.178827][ T253] do_syscall_64+0xc6/0x1e0 [ 4460.178827][ T253] [ 4460.181040][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4460.181040][ T253] netdev_get_by_index+0x5e/0x80 [ 4460.181040][ T253] fib6_nh_init+0x3d8/0x1580 [ 4460.181040][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4460.181040][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4460.181040][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4460.181040][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4460.181040][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4460.181040][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4460.181040][ T253] addrconf_dad_begin+0x310/0x670 [ 4460.181040][ T253] addrconf_dad_work+0x10b/0xab0 [ 4460.181040][ T253] process_one_work+0x84d/0x18a0 [ 4460.181040][ T253] worker_thread+0x587/0xd30 [ 4460.181040][ T253] kthread+0x28a/0x350 [ 4460.181040][ T253] ret_from_fork+0x31/0x70 [ 4460.181040][ T253] ret_from_fork_asm+0x1a/0x30 [ 4460.181040][ T253] [ 4460.183174][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4460.183174][ T253] netdev_get_by_index+0x5e/0x80 [ 4460.183174][ T253] fib6_nh_init+0x3d8/0x1580 [ 4460.183174][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4460.183174][ T253] ip6_route_add+0x1c/0x140 [ 4460.183174][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4460.183174][ T253] inet6_addr_add+0x4f8/0xa40 [ 4460.183174][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4460.183174][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4460.183174][ T253] netlink_rcv_skb+0x130/0x360 [ 4460.183174][ T253] netlink_unicast+0x449/0x710 [ 4460.183174][ T253] netlink_sendmsg+0x723/0xbe0 [ 4460.183174][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4460.183174][ T253] ___sys_sendmsg+0xee/0x170 [ 4460.183174][ T253] __sys_sendmsg+0xcd/0x170 [ 4460.183174][ T253] do_syscall_64+0xc6/0x1e0 [ 4460.183174][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4460.183174][ T253] [ 4460.185408][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4460.185408][ T253] netdev_get_by_index+0x5e/0x80 [ 4460.185408][ T253] fib6_nh_init+0x3d8/0x1580 [ 4460.185408][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4460.185408][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4460.185408][ T253] ipv6_add_addr+0x411/0x2000 [ 4460.185408][ T253] inet6_addr_add+0x30e/0xa40 [ 4460.185408][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4460.185408][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4460.185408][ T253] netlink_rcv_skb+0x130/0x360 [ 4460.185408][ T253] netlink_unicast+0x449/0x710 [ 4460.185408][ T253] netlink_sendmsg+0x723/0xbe0 [ 4460.185408][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4460.185408][ T253] ___sys_sendmsg+0xee/0x170 [ 4460.185408][ T253] __sys_sendmsg+0xcd/0x170 [ 4460.185408][ T253] do_syscall_64+0xc6/0x1e0 [ 4460.185408][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4460.185408][ T253] [ 4460.187643][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4460.187643][ T253] netdev_get_by_index+0x5e/0x80 [ 4460.187643][ T253] fib6_nh_init+0x3d8/0x1580 [ 4460.187643][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4460.187643][ T253] ip6_route_add+0x1c/0x140 [ 4460.187643][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4460.187643][ T253] addrconf_add_dev+0xe2/0x170 [ 4460.187643][ T253] inet6_addr_add+0x12f/0xa40 [ 4460.187643][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4460.187643][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4460.187643][ T253] netlink_rcv_skb+0x130/0x360 [ 4460.187643][ T253] netlink_unicast+0x449/0x710 [ 4460.187643][ T253] netlink_sendmsg+0x723/0xbe0 [ 4460.187643][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4460.187643][ T253] ___sys_sendmsg+0xee/0x170 [ 4460.187643][ T253] __sys_sendmsg+0xcd/0x170 [ 4460.187643][ T253] do_syscall_64+0xc6/0x1e0 [ 4460.187643][ T253] [ 4460.189851][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4460.189851][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4460.189851][ T253] ipv6_find_idev+0x102/0x170 [ 4460.189851][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4460.189851][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4460.189851][ T253] netlink_rcv_skb+0x130/0x360 [ 4460.189851][ T253] netlink_unicast+0x449/0x710 [ 4460.189851][ T253] netlink_sendmsg+0x723/0xbe0 [ 4460.189851][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4460.189851][ T253] ___sys_sendmsg+0xee/0x170 [ 4460.189851][ T253] __sys_sendmsg+0xcd/0x170 [ 4460.189851][ T253] do_syscall_64+0xc6/0x1e0 [ 4460.189851][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4460.189851][ T253] [ 4460.191570][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4460.191570][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4460.191570][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4460.191570][ T253] ipv6_find_idev+0x102/0x170 [ 4460.191570][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4460.191570][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4460.191570][ T253] netlink_rcv_skb+0x130/0x360 [ 4460.191570][ T253] netlink_unicast+0x449/0x710 [ 4460.191570][ T253] netlink_sendmsg+0x723/0xbe0 [ 4460.191570][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4460.191570][ T253] ___sys_sendmsg+0xee/0x170 [ 4460.191570][ T253] __sys_sendmsg+0xcd/0x170 [ 4460.191570][ T253] do_syscall_64+0xc6/0x1e0 [ 4460.191570][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4460.191570][ T253] [ 4470.434356][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4470.434846][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4470.434846][ T253] dst_init+0x84/0x4a0 [ 4470.434846][ T253] dst_alloc+0x97/0x150 [ 4470.434846][ T253] ip6_dst_alloc+0x23/0x90 [ 4470.434846][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4470.434846][ T253] ip6_pol_route+0x56f/0x840 [ 4470.434846][ T253] fib6_rule_lookup+0x334/0x630 [ 4470.434846][ T253] ip6_route_output_flags+0x259/0x480 [ 4470.434846][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4470.434846][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4470.434846][ T253] netlink_rcv_skb+0x130/0x360 [ 4470.434846][ T253] netlink_unicast+0x449/0x710 [ 4470.434846][ T253] netlink_sendmsg+0x723/0xbe0 [ 4470.434846][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4470.434846][ T253] ___sys_sendmsg+0xee/0x170 [ 4470.434846][ T253] __sys_sendmsg+0xcd/0x170 [ 4470.434846][ T253] do_syscall_64+0xc6/0x1e0 [ 4470.434846][ T253] [ 4470.437046][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4470.437046][ T253] netdev_get_by_index+0x5e/0x80 [ 4470.437046][ T253] fib6_nh_init+0x3d8/0x1580 [ 4470.437046][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4470.437046][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4470.437046][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4470.437046][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4470.437046][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4470.437046][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4470.437046][ T253] addrconf_dad_begin+0x310/0x670 [ 4470.437046][ T253] addrconf_dad_work+0x10b/0xab0 [ 4470.437046][ T253] process_one_work+0x84d/0x18a0 [ 4470.437046][ T253] worker_thread+0x587/0xd30 [ 4470.437046][ T253] kthread+0x28a/0x350 [ 4470.437046][ T253] ret_from_fork+0x31/0x70 [ 4470.437046][ T253] ret_from_fork_asm+0x1a/0x30 [ 4470.437046][ T253] [ 4470.439209][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4470.439209][ T253] netdev_get_by_index+0x5e/0x80 [ 4470.439209][ T253] fib6_nh_init+0x3d8/0x1580 [ 4470.439209][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4470.439209][ T253] ip6_route_add+0x1c/0x140 [ 4470.439209][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4470.439209][ T253] inet6_addr_add+0x4f8/0xa40 [ 4470.439209][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4470.439209][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4470.439209][ T253] netlink_rcv_skb+0x130/0x360 [ 4470.439209][ T253] netlink_unicast+0x449/0x710 [ 4470.439209][ T253] netlink_sendmsg+0x723/0xbe0 [ 4470.439209][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4470.439209][ T253] ___sys_sendmsg+0xee/0x170 [ 4470.439209][ T253] __sys_sendmsg+0xcd/0x170 [ 4470.439209][ T253] do_syscall_64+0xc6/0x1e0 [ 4470.439209][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4470.439209][ T253] [ 4470.441441][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4470.441441][ T253] netdev_get_by_index+0x5e/0x80 [ 4470.441441][ T253] fib6_nh_init+0x3d8/0x1580 [ 4470.441441][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4470.441441][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4470.441441][ T253] ipv6_add_addr+0x411/0x2000 [ 4470.441441][ T253] inet6_addr_add+0x30e/0xa40 [ 4470.441441][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4470.441441][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4470.441441][ T253] netlink_rcv_skb+0x130/0x360 [ 4470.441441][ T253] netlink_unicast+0x449/0x710 [ 4470.441441][ T253] netlink_sendmsg+0x723/0xbe0 [ 4470.441441][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4470.441441][ T253] ___sys_sendmsg+0xee/0x170 [ 4470.441441][ T253] __sys_sendmsg+0xcd/0x170 [ 4470.441441][ T253] do_syscall_64+0xc6/0x1e0 [ 4470.441441][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4470.441441][ T253] [ 4470.443680][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4470.443680][ T253] netdev_get_by_index+0x5e/0x80 [ 4470.443680][ T253] fib6_nh_init+0x3d8/0x1580 [ 4470.443680][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4470.443680][ T253] ip6_route_add+0x1c/0x140 [ 4470.443680][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4470.443680][ T253] addrconf_add_dev+0xe2/0x170 [ 4470.443680][ T253] inet6_addr_add+0x12f/0xa40 [ 4470.443680][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4470.443680][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4470.443680][ T253] netlink_rcv_skb+0x130/0x360 [ 4470.443680][ T253] netlink_unicast+0x449/0x710 [ 4470.443680][ T253] netlink_sendmsg+0x723/0xbe0 [ 4470.443680][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4470.443680][ T253] ___sys_sendmsg+0xee/0x170 [ 4470.443680][ T253] __sys_sendmsg+0xcd/0x170 [ 4470.443680][ T253] do_syscall_64+0xc6/0x1e0 [ 4470.443680][ T253] [ 4470.445883][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4470.445883][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4470.445883][ T253] ipv6_find_idev+0x102/0x170 [ 4470.445883][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4470.445883][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4470.445883][ T253] netlink_rcv_skb+0x130/0x360 [ 4470.445883][ T253] netlink_unicast+0x449/0x710 [ 4470.445883][ T253] netlink_sendmsg+0x723/0xbe0 [ 4470.445883][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4470.445883][ T253] ___sys_sendmsg+0xee/0x170 [ 4470.445883][ T253] __sys_sendmsg+0xcd/0x170 [ 4470.445883][ T253] do_syscall_64+0xc6/0x1e0 [ 4470.445883][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4470.445883][ T253] [ 4470.447611][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4470.447611][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4470.447611][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4470.447611][ T253] ipv6_find_idev+0x102/0x170 [ 4470.447611][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4470.447611][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4470.447611][ T253] netlink_rcv_skb+0x130/0x360 [ 4470.447611][ T253] netlink_unicast+0x449/0x710 [ 4470.447611][ T253] netlink_sendmsg+0x723/0xbe0 [ 4470.447611][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4470.447611][ T253] ___sys_sendmsg+0xee/0x170 [ 4470.447611][ T253] __sys_sendmsg+0xcd/0x170 [ 4470.447611][ T253] do_syscall_64+0xc6/0x1e0 [ 4470.447611][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4470.447611][ T253] [ 4480.522250][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4480.522919][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4480.522919][ T253] dst_init+0x84/0x4a0 [ 4480.522919][ T253] dst_alloc+0x97/0x150 [ 4480.522919][ T253] ip6_dst_alloc+0x23/0x90 [ 4480.522919][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4480.522919][ T253] ip6_pol_route+0x56f/0x840 [ 4480.522919][ T253] fib6_rule_lookup+0x334/0x630 [ 4480.522919][ T253] ip6_route_output_flags+0x259/0x480 [ 4480.522919][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4480.522919][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4480.522919][ T253] netlink_rcv_skb+0x130/0x360 [ 4480.522919][ T253] netlink_unicast+0x449/0x710 [ 4480.522919][ T253] netlink_sendmsg+0x723/0xbe0 [ 4480.522919][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4480.522919][ T253] ___sys_sendmsg+0xee/0x170 [ 4480.522919][ T253] __sys_sendmsg+0xcd/0x170 [ 4480.522919][ T253] do_syscall_64+0xc6/0x1e0 [ 4480.522919][ T253] [ 4480.526401][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4480.526401][ T253] netdev_get_by_index+0x5e/0x80 [ 4480.526401][ T253] fib6_nh_init+0x3d8/0x1580 [ 4480.526401][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4480.526401][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4480.526401][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4480.526401][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4480.526401][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4480.526401][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4480.526401][ T253] addrconf_dad_begin+0x310/0x670 [ 4480.526401][ T253] addrconf_dad_work+0x10b/0xab0 [ 4480.526401][ T253] process_one_work+0x84d/0x18a0 [ 4480.526401][ T253] worker_thread+0x587/0xd30 [ 4480.526401][ T253] kthread+0x28a/0x350 [ 4480.526401][ T253] ret_from_fork+0x31/0x70 [ 4480.526401][ T253] ret_from_fork_asm+0x1a/0x30 [ 4480.526401][ T253] [ 4480.529817][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4480.529817][ T253] netdev_get_by_index+0x5e/0x80 [ 4480.529817][ T253] fib6_nh_init+0x3d8/0x1580 [ 4480.529817][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4480.529817][ T253] ip6_route_add+0x1c/0x140 [ 4480.529817][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4480.529817][ T253] inet6_addr_add+0x4f8/0xa40 [ 4480.529817][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4480.529817][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4480.529817][ T253] netlink_rcv_skb+0x130/0x360 [ 4480.529817][ T253] netlink_unicast+0x449/0x710 [ 4480.529817][ T253] netlink_sendmsg+0x723/0xbe0 [ 4480.529817][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4480.529817][ T253] ___sys_sendmsg+0xee/0x170 [ 4480.529817][ T253] __sys_sendmsg+0xcd/0x170 [ 4480.529817][ T253] do_syscall_64+0xc6/0x1e0 [ 4480.529817][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4480.529817][ T253] [ 4480.533373][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4480.533373][ T253] netdev_get_by_index+0x5e/0x80 [ 4480.533373][ T253] fib6_nh_init+0x3d8/0x1580 [ 4480.533373][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4480.533373][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4480.533373][ T253] ipv6_add_addr+0x411/0x2000 [ 4480.533373][ T253] inet6_addr_add+0x30e/0xa40 [ 4480.533373][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4480.533373][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4480.533373][ T253] netlink_rcv_skb+0x130/0x360 [ 4480.533373][ T253] netlink_unicast+0x449/0x710 [ 4480.533373][ T253] netlink_sendmsg+0x723/0xbe0 [ 4480.533373][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4480.533373][ T253] ___sys_sendmsg+0xee/0x170 [ 4480.533373][ T253] __sys_sendmsg+0xcd/0x170 [ 4480.533373][ T253] do_syscall_64+0xc6/0x1e0 [ 4480.533373][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4480.533373][ T253] [ 4480.536924][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4480.536924][ T253] netdev_get_by_index+0x5e/0x80 [ 4480.536924][ T253] fib6_nh_init+0x3d8/0x1580 [ 4480.536924][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4480.536924][ T253] ip6_route_add+0x1c/0x140 [ 4480.536924][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4480.536924][ T253] addrconf_add_dev+0xe2/0x170 [ 4480.536924][ T253] inet6_addr_add+0x12f/0xa40 [ 4480.536924][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4480.536924][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4480.536924][ T253] netlink_rcv_skb+0x130/0x360 [ 4480.536924][ T253] netlink_unicast+0x449/0x710 [ 4480.536924][ T253] netlink_sendmsg+0x723/0xbe0 [ 4480.536924][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4480.536924][ T253] ___sys_sendmsg+0xee/0x170 [ 4480.536924][ T253] __sys_sendmsg+0xcd/0x170 [ 4480.536924][ T253] do_syscall_64+0xc6/0x1e0 [ 4480.536924][ T253] [ 4480.540426][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4480.540426][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4480.540426][ T253] ipv6_find_idev+0x102/0x170 [ 4480.540426][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4480.540426][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4480.540426][ T253] netlink_rcv_skb+0x130/0x360 [ 4480.540426][ T253] netlink_unicast+0x449/0x710 [ 4480.540426][ T253] netlink_sendmsg+0x723/0xbe0 [ 4480.540426][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4480.540426][ T253] ___sys_sendmsg+0xee/0x170 [ 4480.540426][ T253] __sys_sendmsg+0xcd/0x170 [ 4480.540426][ T253] do_syscall_64+0xc6/0x1e0 [ 4480.540426][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4480.540426][ T253] [ 4480.543167][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4480.543167][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4480.543167][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4480.543167][ T253] ipv6_find_idev+0x102/0x170 [ 4480.543167][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4480.543167][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4480.543167][ T253] netlink_rcv_skb+0x130/0x360 [ 4480.543167][ T253] netlink_unicast+0x449/0x710 [ 4480.543167][ T253] netlink_sendmsg+0x723/0xbe0 [ 4480.543167][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4480.543167][ T253] ___sys_sendmsg+0xee/0x170 [ 4480.543167][ T253] __sys_sendmsg+0xcd/0x170 [ 4480.543167][ T253] do_syscall_64+0xc6/0x1e0 [ 4480.543167][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4480.543167][ T253] [ 4490.786251][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4490.786923][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4490.786923][ T253] dst_init+0x84/0x4a0 [ 4490.786923][ T253] dst_alloc+0x97/0x150 [ 4490.786923][ T253] ip6_dst_alloc+0x23/0x90 [ 4490.786923][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4490.786923][ T253] ip6_pol_route+0x56f/0x840 [ 4490.786923][ T253] fib6_rule_lookup+0x334/0x630 [ 4490.786923][ T253] ip6_route_output_flags+0x259/0x480 [ 4490.786923][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4490.786923][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4490.786923][ T253] netlink_rcv_skb+0x130/0x360 [ 4490.786923][ T253] netlink_unicast+0x449/0x710 [ 4490.786923][ T253] netlink_sendmsg+0x723/0xbe0 [ 4490.786923][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4490.786923][ T253] ___sys_sendmsg+0xee/0x170 [ 4490.786923][ T253] __sys_sendmsg+0xcd/0x170 [ 4490.786923][ T253] do_syscall_64+0xc6/0x1e0 [ 4490.786923][ T253] [ 4490.790412][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4490.790412][ T253] netdev_get_by_index+0x5e/0x80 [ 4490.790412][ T253] fib6_nh_init+0x3d8/0x1580 [ 4490.790412][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4490.790412][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4490.790412][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4490.790412][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4490.790412][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4490.790412][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4490.790412][ T253] addrconf_dad_begin+0x310/0x670 [ 4490.790412][ T253] addrconf_dad_work+0x10b/0xab0 [ 4490.790412][ T253] process_one_work+0x84d/0x18a0 [ 4490.790412][ T253] worker_thread+0x587/0xd30 [ 4490.790412][ T253] kthread+0x28a/0x350 [ 4490.790412][ T253] ret_from_fork+0x31/0x70 [ 4490.790412][ T253] ret_from_fork_asm+0x1a/0x30 [ 4490.790412][ T253] [ 4490.793811][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4490.793811][ T253] netdev_get_by_index+0x5e/0x80 [ 4490.793811][ T253] fib6_nh_init+0x3d8/0x1580 [ 4490.793811][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4490.793811][ T253] ip6_route_add+0x1c/0x140 [ 4490.793811][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4490.793811][ T253] inet6_addr_add+0x4f8/0xa40 [ 4490.793811][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4490.793811][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4490.793811][ T253] netlink_rcv_skb+0x130/0x360 [ 4490.793811][ T253] netlink_unicast+0x449/0x710 [ 4490.793811][ T253] netlink_sendmsg+0x723/0xbe0 [ 4490.793811][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4490.793811][ T253] ___sys_sendmsg+0xee/0x170 [ 4490.793811][ T253] __sys_sendmsg+0xcd/0x170 [ 4490.793811][ T253] do_syscall_64+0xc6/0x1e0 [ 4490.793811][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4490.793811][ T253] [ 4490.797371][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4490.797371][ T253] netdev_get_by_index+0x5e/0x80 [ 4490.797371][ T253] fib6_nh_init+0x3d8/0x1580 [ 4490.797371][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4490.797371][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4490.797371][ T253] ipv6_add_addr+0x411/0x2000 [ 4490.797371][ T253] inet6_addr_add+0x30e/0xa40 [ 4490.797371][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4490.797371][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4490.797371][ T253] netlink_rcv_skb+0x130/0x360 [ 4490.797371][ T253] netlink_unicast+0x449/0x710 [ 4490.797371][ T253] netlink_sendmsg+0x723/0xbe0 [ 4490.797371][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4490.797371][ T253] ___sys_sendmsg+0xee/0x170 [ 4490.797371][ T253] __sys_sendmsg+0xcd/0x170 [ 4490.797371][ T253] do_syscall_64+0xc6/0x1e0 [ 4490.797371][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4490.797371][ T253] [ 4490.800944][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4490.800944][ T253] netdev_get_by_index+0x5e/0x80 [ 4490.800944][ T253] fib6_nh_init+0x3d8/0x1580 [ 4490.800944][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4490.800944][ T253] ip6_route_add+0x1c/0x140 [ 4490.800944][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4490.800944][ T253] addrconf_add_dev+0xe2/0x170 [ 4490.800944][ T253] inet6_addr_add+0x12f/0xa40 [ 4490.800944][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4490.800944][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4490.800944][ T253] netlink_rcv_skb+0x130/0x360 [ 4490.800944][ T253] netlink_unicast+0x449/0x710 [ 4490.800944][ T253] netlink_sendmsg+0x723/0xbe0 [ 4490.800944][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4490.800944][ T253] ___sys_sendmsg+0xee/0x170 [ 4490.800944][ T253] __sys_sendmsg+0xcd/0x170 [ 4490.800944][ T253] do_syscall_64+0xc6/0x1e0 [ 4490.800944][ T253] [ 4490.804439][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4490.804439][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4490.804439][ T253] ipv6_find_idev+0x102/0x170 [ 4490.804439][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4490.804439][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4490.804439][ T253] netlink_rcv_skb+0x130/0x360 [ 4490.804439][ T253] netlink_unicast+0x449/0x710 [ 4490.804439][ T253] netlink_sendmsg+0x723/0xbe0 [ 4490.804439][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4490.804439][ T253] ___sys_sendmsg+0xee/0x170 [ 4490.804439][ T253] __sys_sendmsg+0xcd/0x170 [ 4490.804439][ T253] do_syscall_64+0xc6/0x1e0 [ 4490.804439][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4490.804439][ T253] [ 4490.807177][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4490.807177][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4490.807177][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4490.807177][ T253] ipv6_find_idev+0x102/0x170 [ 4490.807177][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4490.807177][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4490.807177][ T253] netlink_rcv_skb+0x130/0x360 [ 4490.807177][ T253] netlink_unicast+0x449/0x710 [ 4490.807177][ T253] netlink_sendmsg+0x723/0xbe0 [ 4490.807177][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4490.807177][ T253] ___sys_sendmsg+0xee/0x170 [ 4490.807177][ T253] __sys_sendmsg+0xcd/0x170 [ 4490.807177][ T253] do_syscall_64+0xc6/0x1e0 [ 4490.807177][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4490.807177][ T253] [ 4501.050262][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4501.050909][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4501.050909][ T253] dst_init+0x84/0x4a0 [ 4501.050909][ T253] dst_alloc+0x97/0x150 [ 4501.050909][ T253] ip6_dst_alloc+0x23/0x90 [ 4501.050909][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4501.050909][ T253] ip6_pol_route+0x56f/0x840 [ 4501.050909][ T253] fib6_rule_lookup+0x334/0x630 [ 4501.050909][ T253] ip6_route_output_flags+0x259/0x480 [ 4501.050909][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4501.050909][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4501.050909][ T253] netlink_rcv_skb+0x130/0x360 [ 4501.050909][ T253] netlink_unicast+0x449/0x710 [ 4501.050909][ T253] netlink_sendmsg+0x723/0xbe0 [ 4501.050909][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4501.050909][ T253] ___sys_sendmsg+0xee/0x170 [ 4501.050909][ T253] __sys_sendmsg+0xcd/0x170 [ 4501.050909][ T253] do_syscall_64+0xc6/0x1e0 [ 4501.050909][ T253] [ 4501.054384][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4501.054384][ T253] netdev_get_by_index+0x5e/0x80 [ 4501.054384][ T253] fib6_nh_init+0x3d8/0x1580 [ 4501.054384][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4501.054384][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4501.054384][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4501.054384][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4501.054384][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4501.054384][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4501.054384][ T253] addrconf_dad_begin+0x310/0x670 [ 4501.054384][ T253] addrconf_dad_work+0x10b/0xab0 [ 4501.054384][ T253] process_one_work+0x84d/0x18a0 [ 4501.054384][ T253] worker_thread+0x587/0xd30 [ 4501.054384][ T253] kthread+0x28a/0x350 [ 4501.054384][ T253] ret_from_fork+0x31/0x70 [ 4501.054384][ T253] ret_from_fork_asm+0x1a/0x30 [ 4501.054384][ T253] [ 4501.057775][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4501.057775][ T253] netdev_get_by_index+0x5e/0x80 [ 4501.057775][ T253] fib6_nh_init+0x3d8/0x1580 [ 4501.057775][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4501.057775][ T253] ip6_route_add+0x1c/0x140 [ 4501.057775][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4501.057775][ T253] inet6_addr_add+0x4f8/0xa40 [ 4501.057775][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4501.057775][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4501.057775][ T253] netlink_rcv_skb+0x130/0x360 [ 4501.057775][ T253] netlink_unicast+0x449/0x710 [ 4501.057775][ T253] netlink_sendmsg+0x723/0xbe0 [ 4501.057775][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4501.057775][ T253] ___sys_sendmsg+0xee/0x170 [ 4501.057775][ T253] __sys_sendmsg+0xcd/0x170 [ 4501.057775][ T253] do_syscall_64+0xc6/0x1e0 [ 4501.057775][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4501.057775][ T253] [ 4501.061338][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4501.061338][ T253] netdev_get_by_index+0x5e/0x80 [ 4501.061338][ T253] fib6_nh_init+0x3d8/0x1580 [ 4501.061338][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4501.061338][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4501.061338][ T253] ipv6_add_addr+0x411/0x2000 [ 4501.061338][ T253] inet6_addr_add+0x30e/0xa40 [ 4501.061338][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4501.061338][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4501.061338][ T253] netlink_rcv_skb+0x130/0x360 [ 4501.061338][ T253] netlink_unicast+0x449/0x710 [ 4501.061338][ T253] netlink_sendmsg+0x723/0xbe0 [ 4501.061338][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4501.061338][ T253] ___sys_sendmsg+0xee/0x170 [ 4501.061338][ T253] __sys_sendmsg+0xcd/0x170 [ 4501.061338][ T253] do_syscall_64+0xc6/0x1e0 [ 4501.061338][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4501.061338][ T253] [ 4501.064891][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4501.064891][ T253] netdev_get_by_index+0x5e/0x80 [ 4501.064891][ T253] fib6_nh_init+0x3d8/0x1580 [ 4501.064891][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4501.064891][ T253] ip6_route_add+0x1c/0x140 [ 4501.064891][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4501.064891][ T253] addrconf_add_dev+0xe2/0x170 [ 4501.064891][ T253] inet6_addr_add+0x12f/0xa40 [ 4501.064891][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4501.064891][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4501.064891][ T253] netlink_rcv_skb+0x130/0x360 [ 4501.064891][ T253] netlink_unicast+0x449/0x710 [ 4501.064891][ T253] netlink_sendmsg+0x723/0xbe0 [ 4501.064891][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4501.064891][ T253] ___sys_sendmsg+0xee/0x170 [ 4501.064891][ T253] __sys_sendmsg+0xcd/0x170 [ 4501.064891][ T253] do_syscall_64+0xc6/0x1e0 [ 4501.064891][ T253] [ 4501.068389][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4501.068389][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4501.068389][ T253] ipv6_find_idev+0x102/0x170 [ 4501.068389][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4501.068389][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4501.068389][ T253] netlink_rcv_skb+0x130/0x360 [ 4501.068389][ T253] netlink_unicast+0x449/0x710 [ 4501.068389][ T253] netlink_sendmsg+0x723/0xbe0 [ 4501.068389][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4501.068389][ T253] ___sys_sendmsg+0xee/0x170 [ 4501.068389][ T253] __sys_sendmsg+0xcd/0x170 [ 4501.068389][ T253] do_syscall_64+0xc6/0x1e0 [ 4501.068389][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4501.068389][ T253] [ 4501.071146][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4501.071146][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4501.071146][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4501.071146][ T253] ipv6_find_idev+0x102/0x170 [ 4501.071146][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4501.071146][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4501.071146][ T253] netlink_rcv_skb+0x130/0x360 [ 4501.071146][ T253] netlink_unicast+0x449/0x710 [ 4501.071146][ T253] netlink_sendmsg+0x723/0xbe0 [ 4501.071146][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4501.071146][ T253] ___sys_sendmsg+0xee/0x170 [ 4501.071146][ T253] __sys_sendmsg+0xcd/0x170 [ 4501.071146][ T253] do_syscall_64+0xc6/0x1e0 [ 4501.071146][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4501.071146][ T253] [ 4511.106272][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4511.106776][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4511.106776][ T253] dst_init+0x84/0x4a0 [ 4511.106776][ T253] dst_alloc+0x97/0x150 [ 4511.106776][ T253] ip6_dst_alloc+0x23/0x90 [ 4511.106776][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4511.106776][ T253] ip6_pol_route+0x56f/0x840 [ 4511.106776][ T253] fib6_rule_lookup+0x334/0x630 [ 4511.106776][ T253] ip6_route_output_flags+0x259/0x480 [ 4511.106776][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4511.106776][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4511.106776][ T253] netlink_rcv_skb+0x130/0x360 [ 4511.106776][ T253] netlink_unicast+0x449/0x710 [ 4511.106776][ T253] netlink_sendmsg+0x723/0xbe0 [ 4511.106776][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4511.106776][ T253] ___sys_sendmsg+0xee/0x170 [ 4511.106776][ T253] __sys_sendmsg+0xcd/0x170 [ 4511.106776][ T253] do_syscall_64+0xc6/0x1e0 [ 4511.106776][ T253] [ 4511.109128][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4511.109128][ T253] netdev_get_by_index+0x5e/0x80 [ 4511.109128][ T253] fib6_nh_init+0x3d8/0x1580 [ 4511.109128][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4511.109128][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4511.109128][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4511.109128][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4511.109128][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4511.109128][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4511.109128][ T253] addrconf_dad_begin+0x310/0x670 [ 4511.109128][ T253] addrconf_dad_work+0x10b/0xab0 [ 4511.109128][ T253] process_one_work+0x84d/0x18a0 [ 4511.109128][ T253] worker_thread+0x587/0xd30 [ 4511.109128][ T253] kthread+0x28a/0x350 [ 4511.109128][ T253] ret_from_fork+0x31/0x70 [ 4511.109128][ T253] ret_from_fork_asm+0x1a/0x30 [ 4511.109128][ T253] [ 4511.111419][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4511.111419][ T253] netdev_get_by_index+0x5e/0x80 [ 4511.111419][ T253] fib6_nh_init+0x3d8/0x1580 [ 4511.111419][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4511.111419][ T253] ip6_route_add+0x1c/0x140 [ 4511.111419][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4511.111419][ T253] inet6_addr_add+0x4f8/0xa40 [ 4511.111419][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4511.111419][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4511.111419][ T253] netlink_rcv_skb+0x130/0x360 [ 4511.111419][ T253] netlink_unicast+0x449/0x710 [ 4511.111419][ T253] netlink_sendmsg+0x723/0xbe0 [ 4511.111419][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4511.111419][ T253] ___sys_sendmsg+0xee/0x170 [ 4511.111419][ T253] __sys_sendmsg+0xcd/0x170 [ 4511.111419][ T253] do_syscall_64+0xc6/0x1e0 [ 4511.111419][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4511.111419][ T253] [ 4511.113775][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4511.113775][ T253] netdev_get_by_index+0x5e/0x80 [ 4511.113775][ T253] fib6_nh_init+0x3d8/0x1580 [ 4511.113775][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4511.113775][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4511.113775][ T253] ipv6_add_addr+0x411/0x2000 [ 4511.113775][ T253] inet6_addr_add+0x30e/0xa40 [ 4511.113775][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4511.113775][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4511.113775][ T253] netlink_rcv_skb+0x130/0x360 [ 4511.113775][ T253] netlink_unicast+0x449/0x710 [ 4511.113775][ T253] netlink_sendmsg+0x723/0xbe0 [ 4511.113775][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4511.113775][ T253] ___sys_sendmsg+0xee/0x170 [ 4511.113775][ T253] __sys_sendmsg+0xcd/0x170 [ 4511.113775][ T253] do_syscall_64+0xc6/0x1e0 [ 4511.113775][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4511.113775][ T253] [ 4511.116162][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4511.116162][ T253] netdev_get_by_index+0x5e/0x80 [ 4511.116162][ T253] fib6_nh_init+0x3d8/0x1580 [ 4511.116162][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4511.116162][ T253] ip6_route_add+0x1c/0x140 [ 4511.116162][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4511.116162][ T253] addrconf_add_dev+0xe2/0x170 [ 4511.116162][ T253] inet6_addr_add+0x12f/0xa40 [ 4511.116162][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4511.116162][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4511.116162][ T253] netlink_rcv_skb+0x130/0x360 [ 4511.116162][ T253] netlink_unicast+0x449/0x710 [ 4511.116162][ T253] netlink_sendmsg+0x723/0xbe0 [ 4511.116162][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4511.116162][ T253] ___sys_sendmsg+0xee/0x170 [ 4511.116162][ T253] __sys_sendmsg+0xcd/0x170 [ 4511.116162][ T253] do_syscall_64+0xc6/0x1e0 [ 4511.116162][ T253] [ 4511.118379][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4511.118379][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4511.118379][ T253] ipv6_find_idev+0x102/0x170 [ 4511.118379][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4511.118379][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4511.118379][ T253] netlink_rcv_skb+0x130/0x360 [ 4511.118379][ T253] netlink_unicast+0x449/0x710 [ 4511.118379][ T253] netlink_sendmsg+0x723/0xbe0 [ 4511.118379][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4511.118379][ T253] ___sys_sendmsg+0xee/0x170 [ 4511.118379][ T253] __sys_sendmsg+0xcd/0x170 [ 4511.118379][ T253] do_syscall_64+0xc6/0x1e0 [ 4511.118379][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4511.118379][ T253] [ 4511.120104][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4511.120104][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4511.120104][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4511.120104][ T253] ipv6_find_idev+0x102/0x170 [ 4511.120104][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4511.120104][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4511.120104][ T253] netlink_rcv_skb+0x130/0x360 [ 4511.120104][ T253] netlink_unicast+0x449/0x710 [ 4511.120104][ T253] netlink_sendmsg+0x723/0xbe0 [ 4511.120104][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4511.120104][ T253] ___sys_sendmsg+0xee/0x170 [ 4511.120104][ T253] __sys_sendmsg+0xcd/0x170 [ 4511.120104][ T253] do_syscall_64+0xc6/0x1e0 [ 4511.120104][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4511.120104][ T253] [ 4521.362299][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4521.362777][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4521.362777][ T253] dst_init+0x84/0x4a0 [ 4521.362777][ T253] dst_alloc+0x97/0x150 [ 4521.362777][ T253] ip6_dst_alloc+0x23/0x90 [ 4521.362777][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4521.362777][ T253] ip6_pol_route+0x56f/0x840 [ 4521.362777][ T253] fib6_rule_lookup+0x334/0x630 [ 4521.362777][ T253] ip6_route_output_flags+0x259/0x480 [ 4521.362777][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4521.362777][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4521.362777][ T253] netlink_rcv_skb+0x130/0x360 [ 4521.362777][ T253] netlink_unicast+0x449/0x710 [ 4521.362777][ T253] netlink_sendmsg+0x723/0xbe0 [ 4521.362777][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4521.362777][ T253] ___sys_sendmsg+0xee/0x170 [ 4521.362777][ T253] __sys_sendmsg+0xcd/0x170 [ 4521.362777][ T253] do_syscall_64+0xc6/0x1e0 [ 4521.362777][ T253] [ 4521.365120][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4521.365120][ T253] netdev_get_by_index+0x5e/0x80 [ 4521.365120][ T253] fib6_nh_init+0x3d8/0x1580 [ 4521.365120][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4521.365120][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4521.365120][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4521.365120][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4521.365120][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4521.365120][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4521.365120][ T253] addrconf_dad_begin+0x310/0x670 [ 4521.365120][ T253] addrconf_dad_work+0x10b/0xab0 [ 4521.365120][ T253] process_one_work+0x84d/0x18a0 [ 4521.365120][ T253] worker_thread+0x587/0xd30 [ 4521.365120][ T253] kthread+0x28a/0x350 [ 4521.365120][ T253] ret_from_fork+0x31/0x70 [ 4521.365120][ T253] ret_from_fork_asm+0x1a/0x30 [ 4521.365120][ T253] [ 4521.367348][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4521.367348][ T253] netdev_get_by_index+0x5e/0x80 [ 4521.367348][ T253] fib6_nh_init+0x3d8/0x1580 [ 4521.367348][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4521.367348][ T253] ip6_route_add+0x1c/0x140 [ 4521.367348][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4521.367348][ T253] inet6_addr_add+0x4f8/0xa40 [ 4521.367348][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4521.367348][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4521.367348][ T253] netlink_rcv_skb+0x130/0x360 [ 4521.367348][ T253] netlink_unicast+0x449/0x710 [ 4521.367348][ T253] netlink_sendmsg+0x723/0xbe0 [ 4521.367348][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4521.367348][ T253] ___sys_sendmsg+0xee/0x170 [ 4521.367348][ T253] __sys_sendmsg+0xcd/0x170 [ 4521.367348][ T253] do_syscall_64+0xc6/0x1e0 [ 4521.367348][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4521.367348][ T253] [ 4521.369607][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4521.369607][ T253] netdev_get_by_index+0x5e/0x80 [ 4521.369607][ T253] fib6_nh_init+0x3d8/0x1580 [ 4521.369607][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4521.369607][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4521.369607][ T253] ipv6_add_addr+0x411/0x2000 [ 4521.369607][ T253] inet6_addr_add+0x30e/0xa40 [ 4521.369607][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4521.369607][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4521.369607][ T253] netlink_rcv_skb+0x130/0x360 [ 4521.369607][ T253] netlink_unicast+0x449/0x710 [ 4521.369607][ T253] netlink_sendmsg+0x723/0xbe0 [ 4521.369607][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4521.369607][ T253] ___sys_sendmsg+0xee/0x170 [ 4521.369607][ T253] __sys_sendmsg+0xcd/0x170 [ 4521.369607][ T253] do_syscall_64+0xc6/0x1e0 [ 4521.369607][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4521.369607][ T253] [ 4521.371848][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4521.371848][ T253] netdev_get_by_index+0x5e/0x80 [ 4521.371848][ T253] fib6_nh_init+0x3d8/0x1580 [ 4521.371848][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4521.371848][ T253] ip6_route_add+0x1c/0x140 [ 4521.371848][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4521.371848][ T253] addrconf_add_dev+0xe2/0x170 [ 4521.371848][ T253] inet6_addr_add+0x12f/0xa40 [ 4521.371848][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4521.371848][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4521.371848][ T253] netlink_rcv_skb+0x130/0x360 [ 4521.371848][ T253] netlink_unicast+0x449/0x710 [ 4521.371848][ T253] netlink_sendmsg+0x723/0xbe0 [ 4521.371848][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4521.371848][ T253] ___sys_sendmsg+0xee/0x170 [ 4521.371848][ T253] __sys_sendmsg+0xcd/0x170 [ 4521.371848][ T253] do_syscall_64+0xc6/0x1e0 [ 4521.371848][ T253] [ 4521.374127][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4521.374127][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4521.374127][ T253] ipv6_find_idev+0x102/0x170 [ 4521.374127][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4521.374127][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4521.374127][ T253] netlink_rcv_skb+0x130/0x360 [ 4521.374127][ T253] netlink_unicast+0x449/0x710 [ 4521.374127][ T253] netlink_sendmsg+0x723/0xbe0 [ 4521.374127][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4521.374127][ T253] ___sys_sendmsg+0xee/0x170 [ 4521.374127][ T253] __sys_sendmsg+0xcd/0x170 [ 4521.374127][ T253] do_syscall_64+0xc6/0x1e0 [ 4521.374127][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4521.374127][ T253] [ 4521.375951][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4521.375951][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4521.375951][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4521.375951][ T253] ipv6_find_idev+0x102/0x170 [ 4521.375951][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4521.375951][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4521.375951][ T253] netlink_rcv_skb+0x130/0x360 [ 4521.375951][ T253] netlink_unicast+0x449/0x710 [ 4521.375951][ T253] netlink_sendmsg+0x723/0xbe0 [ 4521.375951][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4521.375951][ T253] ___sys_sendmsg+0xee/0x170 [ 4521.375951][ T253] __sys_sendmsg+0xcd/0x170 [ 4521.375951][ T253] do_syscall_64+0xc6/0x1e0 [ 4521.375951][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4521.375951][ T253] [ 4531.618253][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4531.618750][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4531.618750][ T253] dst_init+0x84/0x4a0 [ 4531.618750][ T253] dst_alloc+0x97/0x150 [ 4531.618750][ T253] ip6_dst_alloc+0x23/0x90 [ 4531.618750][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4531.618750][ T253] ip6_pol_route+0x56f/0x840 [ 4531.618750][ T253] fib6_rule_lookup+0x334/0x630 [ 4531.618750][ T253] ip6_route_output_flags+0x259/0x480 [ 4531.618750][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4531.618750][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4531.618750][ T253] netlink_rcv_skb+0x130/0x360 [ 4531.618750][ T253] netlink_unicast+0x449/0x710 [ 4531.618750][ T253] netlink_sendmsg+0x723/0xbe0 [ 4531.618750][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4531.618750][ T253] ___sys_sendmsg+0xee/0x170 [ 4531.618750][ T253] __sys_sendmsg+0xcd/0x170 [ 4531.618750][ T253] do_syscall_64+0xc6/0x1e0 [ 4531.618750][ T253] [ 4531.621111][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4531.621111][ T253] netdev_get_by_index+0x5e/0x80 [ 4531.621111][ T253] fib6_nh_init+0x3d8/0x1580 [ 4531.621111][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4531.621111][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4531.621111][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4531.621111][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4531.621111][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4531.621111][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4531.621111][ T253] addrconf_dad_begin+0x310/0x670 [ 4531.621111][ T253] addrconf_dad_work+0x10b/0xab0 [ 4531.621111][ T253] process_one_work+0x84d/0x18a0 [ 4531.621111][ T253] worker_thread+0x587/0xd30 [ 4531.621111][ T253] kthread+0x28a/0x350 [ 4531.621111][ T253] ret_from_fork+0x31/0x70 [ 4531.621111][ T253] ret_from_fork_asm+0x1a/0x30 [ 4531.621111][ T253] [ 4531.623353][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4531.623353][ T253] netdev_get_by_index+0x5e/0x80 [ 4531.623353][ T253] fib6_nh_init+0x3d8/0x1580 [ 4531.623353][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4531.623353][ T253] ip6_route_add+0x1c/0x140 [ 4531.623353][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4531.623353][ T253] inet6_addr_add+0x4f8/0xa40 [ 4531.623353][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4531.623353][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4531.623353][ T253] netlink_rcv_skb+0x130/0x360 [ 4531.623353][ T253] netlink_unicast+0x449/0x710 [ 4531.623353][ T253] netlink_sendmsg+0x723/0xbe0 [ 4531.623353][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4531.623353][ T253] ___sys_sendmsg+0xee/0x170 [ 4531.623353][ T253] __sys_sendmsg+0xcd/0x170 [ 4531.623353][ T253] do_syscall_64+0xc6/0x1e0 [ 4531.623353][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4531.623353][ T253] [ 4531.625672][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4531.625672][ T253] netdev_get_by_index+0x5e/0x80 [ 4531.625672][ T253] fib6_nh_init+0x3d8/0x1580 [ 4531.625672][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4531.625672][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4531.625672][ T253] ipv6_add_addr+0x411/0x2000 [ 4531.625672][ T253] inet6_addr_add+0x30e/0xa40 [ 4531.625672][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4531.625672][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4531.625672][ T253] netlink_rcv_skb+0x130/0x360 [ 4531.625672][ T253] netlink_unicast+0x449/0x710 [ 4531.625672][ T253] netlink_sendmsg+0x723/0xbe0 [ 4531.625672][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4531.625672][ T253] ___sys_sendmsg+0xee/0x170 [ 4531.625672][ T253] __sys_sendmsg+0xcd/0x170 [ 4531.625672][ T253] do_syscall_64+0xc6/0x1e0 [ 4531.625672][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4531.625672][ T253] [ 4531.627934][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4531.627934][ T253] netdev_get_by_index+0x5e/0x80 [ 4531.627934][ T253] fib6_nh_init+0x3d8/0x1580 [ 4531.627934][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4531.627934][ T253] ip6_route_add+0x1c/0x140 [ 4531.627934][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4531.627934][ T253] addrconf_add_dev+0xe2/0x170 [ 4531.627934][ T253] inet6_addr_add+0x12f/0xa40 [ 4531.627934][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4531.627934][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4531.627934][ T253] netlink_rcv_skb+0x130/0x360 [ 4531.627934][ T253] netlink_unicast+0x449/0x710 [ 4531.627934][ T253] netlink_sendmsg+0x723/0xbe0 [ 4531.627934][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4531.627934][ T253] ___sys_sendmsg+0xee/0x170 [ 4531.627934][ T253] __sys_sendmsg+0xcd/0x170 [ 4531.627934][ T253] do_syscall_64+0xc6/0x1e0 [ 4531.627934][ T253] [ 4531.630242][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4531.630242][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4531.630242][ T253] ipv6_find_idev+0x102/0x170 [ 4531.630242][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4531.630242][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4531.630242][ T253] netlink_rcv_skb+0x130/0x360 [ 4531.630242][ T253] netlink_unicast+0x449/0x710 [ 4531.630242][ T253] netlink_sendmsg+0x723/0xbe0 [ 4531.630242][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4531.630242][ T253] ___sys_sendmsg+0xee/0x170 [ 4531.630242][ T253] __sys_sendmsg+0xcd/0x170 [ 4531.630242][ T253] do_syscall_64+0xc6/0x1e0 [ 4531.630242][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4531.630242][ T253] [ 4531.632091][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4531.632091][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4531.632091][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4531.632091][ T253] ipv6_find_idev+0x102/0x170 [ 4531.632091][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4531.632091][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4531.632091][ T253] netlink_rcv_skb+0x130/0x360 [ 4531.632091][ T253] netlink_unicast+0x449/0x710 [ 4531.632091][ T253] netlink_sendmsg+0x723/0xbe0 [ 4531.632091][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4531.632091][ T253] ___sys_sendmsg+0xee/0x170 [ 4531.632091][ T253] __sys_sendmsg+0xcd/0x170 [ 4531.632091][ T253] do_syscall_64+0xc6/0x1e0 [ 4531.632091][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4531.632091][ T253] [ 4541.874353][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4541.874847][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4541.874847][ T253] dst_init+0x84/0x4a0 [ 4541.874847][ T253] dst_alloc+0x97/0x150 [ 4541.874847][ T253] ip6_dst_alloc+0x23/0x90 [ 4541.874847][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4541.874847][ T253] ip6_pol_route+0x56f/0x840 [ 4541.874847][ T253] fib6_rule_lookup+0x334/0x630 [ 4541.874847][ T253] ip6_route_output_flags+0x259/0x480 [ 4541.874847][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4541.874847][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4541.874847][ T253] netlink_rcv_skb+0x130/0x360 [ 4541.874847][ T253] netlink_unicast+0x449/0x710 [ 4541.874847][ T253] netlink_sendmsg+0x723/0xbe0 [ 4541.874847][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4541.874847][ T253] ___sys_sendmsg+0xee/0x170 [ 4541.874847][ T253] __sys_sendmsg+0xcd/0x170 [ 4541.874847][ T253] do_syscall_64+0xc6/0x1e0 [ 4541.874847][ T253] [ 4541.877053][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4541.877053][ T253] netdev_get_by_index+0x5e/0x80 [ 4541.877053][ T253] fib6_nh_init+0x3d8/0x1580 [ 4541.877053][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4541.877053][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4541.877053][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4541.877053][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4541.877053][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4541.877053][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4541.877053][ T253] addrconf_dad_begin+0x310/0x670 [ 4541.877053][ T253] addrconf_dad_work+0x10b/0xab0 [ 4541.877053][ T253] process_one_work+0x84d/0x18a0 [ 4541.877053][ T253] worker_thread+0x587/0xd30 [ 4541.877053][ T253] kthread+0x28a/0x350 [ 4541.877053][ T253] ret_from_fork+0x31/0x70 [ 4541.877053][ T253] ret_from_fork_asm+0x1a/0x30 [ 4541.877053][ T253] [ 4541.879241][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4541.879241][ T253] netdev_get_by_index+0x5e/0x80 [ 4541.879241][ T253] fib6_nh_init+0x3d8/0x1580 [ 4541.879241][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4541.879241][ T253] ip6_route_add+0x1c/0x140 [ 4541.879241][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4541.879241][ T253] inet6_addr_add+0x4f8/0xa40 [ 4541.879241][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4541.879241][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4541.879241][ T253] netlink_rcv_skb+0x130/0x360 [ 4541.879241][ T253] netlink_unicast+0x449/0x710 [ 4541.879241][ T253] netlink_sendmsg+0x723/0xbe0 [ 4541.879241][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4541.879241][ T253] ___sys_sendmsg+0xee/0x170 [ 4541.879241][ T253] __sys_sendmsg+0xcd/0x170 [ 4541.879241][ T253] do_syscall_64+0xc6/0x1e0 [ 4541.879241][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4541.879241][ T253] [ 4541.881880][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4541.881880][ T253] netdev_get_by_index+0x5e/0x80 [ 4541.881880][ T253] fib6_nh_init+0x3d8/0x1580 [ 4541.881880][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4541.881880][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4541.881880][ T253] ipv6_add_addr+0x411/0x2000 [ 4541.881880][ T253] inet6_addr_add+0x30e/0xa40 [ 4541.881880][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4541.881880][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4541.881880][ T253] netlink_rcv_skb+0x130/0x360 [ 4541.881880][ T253] netlink_unicast+0x449/0x710 [ 4541.881880][ T253] netlink_sendmsg+0x723/0xbe0 [ 4541.881880][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4541.881880][ T253] ___sys_sendmsg+0xee/0x170 [ 4541.881880][ T253] __sys_sendmsg+0xcd/0x170 [ 4541.881880][ T253] do_syscall_64+0xc6/0x1e0 [ 4541.881880][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4541.881880][ T253] [ 4541.884130][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4541.884130][ T253] netdev_get_by_index+0x5e/0x80 [ 4541.884130][ T253] fib6_nh_init+0x3d8/0x1580 [ 4541.884130][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4541.884130][ T253] ip6_route_add+0x1c/0x140 [ 4541.884130][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4541.884130][ T253] addrconf_add_dev+0xe2/0x170 [ 4541.884130][ T253] inet6_addr_add+0x12f/0xa40 [ 4541.884130][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4541.884130][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4541.884130][ T253] netlink_rcv_skb+0x130/0x360 [ 4541.884130][ T253] netlink_unicast+0x449/0x710 [ 4541.884130][ T253] netlink_sendmsg+0x723/0xbe0 [ 4541.884130][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4541.884130][ T253] ___sys_sendmsg+0xee/0x170 [ 4541.884130][ T253] __sys_sendmsg+0xcd/0x170 [ 4541.884130][ T253] do_syscall_64+0xc6/0x1e0 [ 4541.884130][ T253] [ 4541.886331][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4541.886331][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4541.886331][ T253] ipv6_find_idev+0x102/0x170 [ 4541.886331][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4541.886331][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4541.886331][ T253] netlink_rcv_skb+0x130/0x360 [ 4541.886331][ T253] netlink_unicast+0x449/0x710 [ 4541.886331][ T253] netlink_sendmsg+0x723/0xbe0 [ 4541.886331][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4541.886331][ T253] ___sys_sendmsg+0xee/0x170 [ 4541.886331][ T253] __sys_sendmsg+0xcd/0x170 [ 4541.886331][ T253] do_syscall_64+0xc6/0x1e0 [ 4541.886331][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4541.886331][ T253] [ 4541.888055][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4541.888055][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4541.888055][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4541.888055][ T253] ipv6_find_idev+0x102/0x170 [ 4541.888055][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4541.888055][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4541.888055][ T253] netlink_rcv_skb+0x130/0x360 [ 4541.888055][ T253] netlink_unicast+0x449/0x710 [ 4541.888055][ T253] netlink_sendmsg+0x723/0xbe0 [ 4541.888055][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4541.888055][ T253] ___sys_sendmsg+0xee/0x170 [ 4541.888055][ T253] __sys_sendmsg+0xcd/0x170 [ 4541.888055][ T253] do_syscall_64+0xc6/0x1e0 [ 4541.888055][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4541.888055][ T253] [ 4552.130382][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4552.130849][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4552.130849][ T253] dst_init+0x84/0x4a0 [ 4552.130849][ T253] dst_alloc+0x97/0x150 [ 4552.130849][ T253] ip6_dst_alloc+0x23/0x90 [ 4552.130849][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4552.130849][ T253] ip6_pol_route+0x56f/0x840 [ 4552.130849][ T253] fib6_rule_lookup+0x334/0x630 [ 4552.130849][ T253] ip6_route_output_flags+0x259/0x480 [ 4552.130849][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4552.130849][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4552.130849][ T253] netlink_rcv_skb+0x130/0x360 [ 4552.130849][ T253] netlink_unicast+0x449/0x710 [ 4552.130849][ T253] netlink_sendmsg+0x723/0xbe0 [ 4552.130849][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4552.130849][ T253] ___sys_sendmsg+0xee/0x170 [ 4552.130849][ T253] __sys_sendmsg+0xcd/0x170 [ 4552.130849][ T253] do_syscall_64+0xc6/0x1e0 [ 4552.130849][ T253] [ 4552.133235][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4552.133235][ T253] netdev_get_by_index+0x5e/0x80 [ 4552.133235][ T253] fib6_nh_init+0x3d8/0x1580 [ 4552.133235][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4552.133235][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4552.133235][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4552.133235][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4552.133235][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4552.133235][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4552.133235][ T253] addrconf_dad_begin+0x310/0x670 [ 4552.133235][ T253] addrconf_dad_work+0x10b/0xab0 [ 4552.133235][ T253] process_one_work+0x84d/0x18a0 [ 4552.133235][ T253] worker_thread+0x587/0xd30 [ 4552.133235][ T253] kthread+0x28a/0x350 [ 4552.133235][ T253] ret_from_fork+0x31/0x70 [ 4552.133235][ T253] ret_from_fork_asm+0x1a/0x30 [ 4552.133235][ T253] [ 4552.135572][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4552.135572][ T253] netdev_get_by_index+0x5e/0x80 [ 4552.135572][ T253] fib6_nh_init+0x3d8/0x1580 [ 4552.135572][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4552.135572][ T253] ip6_route_add+0x1c/0x140 [ 4552.135572][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4552.135572][ T253] inet6_addr_add+0x4f8/0xa40 [ 4552.135572][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4552.135572][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4552.135572][ T253] netlink_rcv_skb+0x130/0x360 [ 4552.135572][ T253] netlink_unicast+0x449/0x710 [ 4552.135572][ T253] netlink_sendmsg+0x723/0xbe0 [ 4552.135572][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4552.135572][ T253] ___sys_sendmsg+0xee/0x170 [ 4552.135572][ T253] __sys_sendmsg+0xcd/0x170 [ 4552.135572][ T253] do_syscall_64+0xc6/0x1e0 [ 4552.135572][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4552.135572][ T253] [ 4552.138009][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4552.138009][ T253] netdev_get_by_index+0x5e/0x80 [ 4552.138009][ T253] fib6_nh_init+0x3d8/0x1580 [ 4552.138009][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4552.138009][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4552.138009][ T253] ipv6_add_addr+0x411/0x2000 [ 4552.138009][ T253] inet6_addr_add+0x30e/0xa40 [ 4552.138009][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4552.138009][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4552.138009][ T253] netlink_rcv_skb+0x130/0x360 [ 4552.138009][ T253] netlink_unicast+0x449/0x710 [ 4552.138009][ T253] netlink_sendmsg+0x723/0xbe0 [ 4552.138009][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4552.138009][ T253] ___sys_sendmsg+0xee/0x170 [ 4552.138009][ T253] __sys_sendmsg+0xcd/0x170 [ 4552.138009][ T253] do_syscall_64+0xc6/0x1e0 [ 4552.138009][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4552.138009][ T253] [ 4552.140448][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4552.140448][ T253] netdev_get_by_index+0x5e/0x80 [ 4552.140448][ T253] fib6_nh_init+0x3d8/0x1580 [ 4552.140448][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4552.140448][ T253] ip6_route_add+0x1c/0x140 [ 4552.140448][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4552.140448][ T253] addrconf_add_dev+0xe2/0x170 [ 4552.140448][ T253] inet6_addr_add+0x12f/0xa40 [ 4552.140448][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4552.140448][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4552.140448][ T253] netlink_rcv_skb+0x130/0x360 [ 4552.140448][ T253] netlink_unicast+0x449/0x710 [ 4552.140448][ T253] netlink_sendmsg+0x723/0xbe0 [ 4552.140448][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4552.140448][ T253] ___sys_sendmsg+0xee/0x170 [ 4552.140448][ T253] __sys_sendmsg+0xcd/0x170 [ 4552.140448][ T253] do_syscall_64+0xc6/0x1e0 [ 4552.140448][ T253] [ 4552.142833][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4552.142833][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4552.142833][ T253] ipv6_find_idev+0x102/0x170 [ 4552.142833][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4552.142833][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4552.142833][ T253] netlink_rcv_skb+0x130/0x360 [ 4552.142833][ T253] netlink_unicast+0x449/0x710 [ 4552.142833][ T253] netlink_sendmsg+0x723/0xbe0 [ 4552.142833][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4552.142833][ T253] ___sys_sendmsg+0xee/0x170 [ 4552.142833][ T253] __sys_sendmsg+0xcd/0x170 [ 4552.142833][ T253] do_syscall_64+0xc6/0x1e0 [ 4552.142833][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4552.142833][ T253] [ 4552.144692][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4552.144692][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4552.144692][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4552.144692][ T253] ipv6_find_idev+0x102/0x170 [ 4552.144692][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4552.144692][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4552.144692][ T253] netlink_rcv_skb+0x130/0x360 [ 4552.144692][ T253] netlink_unicast+0x449/0x710 [ 4552.144692][ T253] netlink_sendmsg+0x723/0xbe0 [ 4552.144692][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4552.144692][ T253] ___sys_sendmsg+0xee/0x170 [ 4552.144692][ T253] __sys_sendmsg+0xcd/0x170 [ 4552.144692][ T253] do_syscall_64+0xc6/0x1e0 [ 4552.144692][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4552.144692][ T253] [ 4562.338303][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4562.338770][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4562.338770][ T253] dst_init+0x84/0x4a0 [ 4562.338770][ T253] dst_alloc+0x97/0x150 [ 4562.338770][ T253] ip6_dst_alloc+0x23/0x90 [ 4562.338770][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4562.338770][ T253] ip6_pol_route+0x56f/0x840 [ 4562.338770][ T253] fib6_rule_lookup+0x334/0x630 [ 4562.338770][ T253] ip6_route_output_flags+0x259/0x480 [ 4562.338770][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4562.338770][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4562.338770][ T253] netlink_rcv_skb+0x130/0x360 [ 4562.338770][ T253] netlink_unicast+0x449/0x710 [ 4562.338770][ T253] netlink_sendmsg+0x723/0xbe0 [ 4562.338770][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4562.338770][ T253] ___sys_sendmsg+0xee/0x170 [ 4562.338770][ T253] __sys_sendmsg+0xcd/0x170 [ 4562.338770][ T253] do_syscall_64+0xc6/0x1e0 [ 4562.338770][ T253] [ 4562.341005][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4562.341005][ T253] netdev_get_by_index+0x5e/0x80 [ 4562.341005][ T253] fib6_nh_init+0x3d8/0x1580 [ 4562.341005][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4562.341005][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4562.341005][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4562.341005][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4562.341005][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4562.341005][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4562.341005][ T253] addrconf_dad_begin+0x310/0x670 [ 4562.341005][ T253] addrconf_dad_work+0x10b/0xab0 [ 4562.341005][ T253] process_one_work+0x84d/0x18a0 [ 4562.341005][ T253] worker_thread+0x587/0xd30 [ 4562.341005][ T253] kthread+0x28a/0x350 [ 4562.341005][ T253] ret_from_fork+0x31/0x70 [ 4562.341005][ T253] ret_from_fork_asm+0x1a/0x30 [ 4562.341005][ T253] [ 4562.343141][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4562.343141][ T253] netdev_get_by_index+0x5e/0x80 [ 4562.343141][ T253] fib6_nh_init+0x3d8/0x1580 [ 4562.343141][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4562.343141][ T253] ip6_route_add+0x1c/0x140 [ 4562.343141][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4562.343141][ T253] inet6_addr_add+0x4f8/0xa40 [ 4562.343141][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4562.343141][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4562.343141][ T253] netlink_rcv_skb+0x130/0x360 [ 4562.343141][ T253] netlink_unicast+0x449/0x710 [ 4562.343141][ T253] netlink_sendmsg+0x723/0xbe0 [ 4562.343141][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4562.343141][ T253] ___sys_sendmsg+0xee/0x170 [ 4562.343141][ T253] __sys_sendmsg+0xcd/0x170 [ 4562.343141][ T253] do_syscall_64+0xc6/0x1e0 [ 4562.343141][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4562.343141][ T253] [ 4562.345376][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4562.345376][ T253] netdev_get_by_index+0x5e/0x80 [ 4562.345376][ T253] fib6_nh_init+0x3d8/0x1580 [ 4562.345376][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4562.345376][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4562.345376][ T253] ipv6_add_addr+0x411/0x2000 [ 4562.345376][ T253] inet6_addr_add+0x30e/0xa40 [ 4562.345376][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4562.345376][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4562.345376][ T253] netlink_rcv_skb+0x130/0x360 [ 4562.345376][ T253] netlink_unicast+0x449/0x710 [ 4562.345376][ T253] netlink_sendmsg+0x723/0xbe0 [ 4562.345376][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4562.345376][ T253] ___sys_sendmsg+0xee/0x170 [ 4562.345376][ T253] __sys_sendmsg+0xcd/0x170 [ 4562.345376][ T253] do_syscall_64+0xc6/0x1e0 [ 4562.345376][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4562.345376][ T253] [ 4562.347617][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4562.347617][ T253] netdev_get_by_index+0x5e/0x80 [ 4562.347617][ T253] fib6_nh_init+0x3d8/0x1580 [ 4562.347617][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4562.347617][ T253] ip6_route_add+0x1c/0x140 [ 4562.347617][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4562.347617][ T253] addrconf_add_dev+0xe2/0x170 [ 4562.347617][ T253] inet6_addr_add+0x12f/0xa40 [ 4562.347617][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4562.347617][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4562.347617][ T253] netlink_rcv_skb+0x130/0x360 [ 4562.347617][ T253] netlink_unicast+0x449/0x710 [ 4562.347617][ T253] netlink_sendmsg+0x723/0xbe0 [ 4562.347617][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4562.347617][ T253] ___sys_sendmsg+0xee/0x170 [ 4562.347617][ T253] __sys_sendmsg+0xcd/0x170 [ 4562.347617][ T253] do_syscall_64+0xc6/0x1e0 [ 4562.347617][ T253] [ 4562.349824][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4562.349824][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4562.349824][ T253] ipv6_find_idev+0x102/0x170 [ 4562.349824][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4562.349824][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4562.349824][ T253] netlink_rcv_skb+0x130/0x360 [ 4562.349824][ T253] netlink_unicast+0x449/0x710 [ 4562.349824][ T253] netlink_sendmsg+0x723/0xbe0 [ 4562.349824][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4562.349824][ T253] ___sys_sendmsg+0xee/0x170 [ 4562.349824][ T253] __sys_sendmsg+0xcd/0x170 [ 4562.349824][ T253] do_syscall_64+0xc6/0x1e0 [ 4562.349824][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4562.349824][ T253] [ 4562.351546][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4562.351546][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4562.351546][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4562.351546][ T253] ipv6_find_idev+0x102/0x170 [ 4562.351546][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4562.351546][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4562.351546][ T253] netlink_rcv_skb+0x130/0x360 [ 4562.351546][ T253] netlink_unicast+0x449/0x710 [ 4562.351546][ T253] netlink_sendmsg+0x723/0xbe0 [ 4562.351546][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4562.351546][ T253] ___sys_sendmsg+0xee/0x170 [ 4562.351546][ T253] __sys_sendmsg+0xcd/0x170 [ 4562.351546][ T253] do_syscall_64+0xc6/0x1e0 [ 4562.351546][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4562.351546][ T253] [ 4572.594322][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4572.594807][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4572.594807][ T253] dst_init+0x84/0x4a0 [ 4572.594807][ T253] dst_alloc+0x97/0x150 [ 4572.594807][ T253] ip6_dst_alloc+0x23/0x90 [ 4572.594807][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4572.594807][ T253] ip6_pol_route+0x56f/0x840 [ 4572.594807][ T253] fib6_rule_lookup+0x334/0x630 [ 4572.594807][ T253] ip6_route_output_flags+0x259/0x480 [ 4572.594807][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4572.594807][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4572.594807][ T253] netlink_rcv_skb+0x130/0x360 [ 4572.594807][ T253] netlink_unicast+0x449/0x710 [ 4572.594807][ T253] netlink_sendmsg+0x723/0xbe0 [ 4572.594807][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4572.594807][ T253] ___sys_sendmsg+0xee/0x170 [ 4572.594807][ T253] __sys_sendmsg+0xcd/0x170 [ 4572.594807][ T253] do_syscall_64+0xc6/0x1e0 [ 4572.594807][ T253] [ 4572.596998][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4572.596998][ T253] netdev_get_by_index+0x5e/0x80 [ 4572.596998][ T253] fib6_nh_init+0x3d8/0x1580 [ 4572.596998][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4572.596998][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4572.596998][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4572.596998][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4572.596998][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4572.596998][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4572.596998][ T253] addrconf_dad_begin+0x310/0x670 [ 4572.596998][ T253] addrconf_dad_work+0x10b/0xab0 [ 4572.596998][ T253] process_one_work+0x84d/0x18a0 [ 4572.596998][ T253] worker_thread+0x587/0xd30 [ 4572.596998][ T253] kthread+0x28a/0x350 [ 4572.596998][ T253] ret_from_fork+0x31/0x70 [ 4572.596998][ T253] ret_from_fork_asm+0x1a/0x30 [ 4572.596998][ T253] [ 4572.599148][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4572.599148][ T253] netdev_get_by_index+0x5e/0x80 [ 4572.599148][ T253] fib6_nh_init+0x3d8/0x1580 [ 4572.599148][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4572.599148][ T253] ip6_route_add+0x1c/0x140 [ 4572.599148][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4572.599148][ T253] inet6_addr_add+0x4f8/0xa40 [ 4572.599148][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4572.599148][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4572.599148][ T253] netlink_rcv_skb+0x130/0x360 [ 4572.599148][ T253] netlink_unicast+0x449/0x710 [ 4572.599148][ T253] netlink_sendmsg+0x723/0xbe0 [ 4572.599148][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4572.599148][ T253] ___sys_sendmsg+0xee/0x170 [ 4572.599148][ T253] __sys_sendmsg+0xcd/0x170 [ 4572.599148][ T253] do_syscall_64+0xc6/0x1e0 [ 4572.599148][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4572.599148][ T253] [ 4572.601388][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4572.601388][ T253] netdev_get_by_index+0x5e/0x80 [ 4572.601388][ T253] fib6_nh_init+0x3d8/0x1580 [ 4572.601388][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4572.601388][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4572.601388][ T253] ipv6_add_addr+0x411/0x2000 [ 4572.601388][ T253] inet6_addr_add+0x30e/0xa40 [ 4572.601388][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4572.601388][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4572.601388][ T253] netlink_rcv_skb+0x130/0x360 [ 4572.601388][ T253] netlink_unicast+0x449/0x710 [ 4572.601388][ T253] netlink_sendmsg+0x723/0xbe0 [ 4572.601388][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4572.601388][ T253] ___sys_sendmsg+0xee/0x170 [ 4572.601388][ T253] __sys_sendmsg+0xcd/0x170 [ 4572.601388][ T253] do_syscall_64+0xc6/0x1e0 [ 4572.601388][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4572.601388][ T253] [ 4572.603635][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4572.603635][ T253] netdev_get_by_index+0x5e/0x80 [ 4572.603635][ T253] fib6_nh_init+0x3d8/0x1580 [ 4572.603635][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4572.603635][ T253] ip6_route_add+0x1c/0x140 [ 4572.603635][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4572.603635][ T253] addrconf_add_dev+0xe2/0x170 [ 4572.603635][ T253] inet6_addr_add+0x12f/0xa40 [ 4572.603635][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4572.603635][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4572.603635][ T253] netlink_rcv_skb+0x130/0x360 [ 4572.603635][ T253] netlink_unicast+0x449/0x710 [ 4572.603635][ T253] netlink_sendmsg+0x723/0xbe0 [ 4572.603635][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4572.603635][ T253] ___sys_sendmsg+0xee/0x170 [ 4572.603635][ T253] __sys_sendmsg+0xcd/0x170 [ 4572.603635][ T253] do_syscall_64+0xc6/0x1e0 [ 4572.603635][ T253] [ 4572.606345][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4572.606345][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4572.606345][ T253] ipv6_find_idev+0x102/0x170 [ 4572.606345][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4572.606345][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4572.606345][ T253] netlink_rcv_skb+0x130/0x360 [ 4572.606345][ T253] netlink_unicast+0x449/0x710 [ 4572.606345][ T253] netlink_sendmsg+0x723/0xbe0 [ 4572.606345][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4572.606345][ T253] ___sys_sendmsg+0xee/0x170 [ 4572.606345][ T253] __sys_sendmsg+0xcd/0x170 [ 4572.606345][ T253] do_syscall_64+0xc6/0x1e0 [ 4572.606345][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4572.606345][ T253] [ 4572.608071][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4572.608071][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4572.608071][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4572.608071][ T253] ipv6_find_idev+0x102/0x170 [ 4572.608071][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4572.608071][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4572.608071][ T253] netlink_rcv_skb+0x130/0x360 [ 4572.608071][ T253] netlink_unicast+0x449/0x710 [ 4572.608071][ T253] netlink_sendmsg+0x723/0xbe0 [ 4572.608071][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4572.608071][ T253] ___sys_sendmsg+0xee/0x170 [ 4572.608071][ T253] __sys_sendmsg+0xcd/0x170 [ 4572.608071][ T253] do_syscall_64+0xc6/0x1e0 [ 4572.608071][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4572.608071][ T253] [ 4582.682326][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4582.682799][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4582.682799][ T253] dst_init+0x84/0x4a0 [ 4582.682799][ T253] dst_alloc+0x97/0x150 [ 4582.682799][ T253] ip6_dst_alloc+0x23/0x90 [ 4582.682799][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4582.682799][ T253] ip6_pol_route+0x56f/0x840 [ 4582.682799][ T253] fib6_rule_lookup+0x334/0x630 [ 4582.682799][ T253] ip6_route_output_flags+0x259/0x480 [ 4582.682799][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4582.682799][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4582.682799][ T253] netlink_rcv_skb+0x130/0x360 [ 4582.682799][ T253] netlink_unicast+0x449/0x710 [ 4582.682799][ T253] netlink_sendmsg+0x723/0xbe0 [ 4582.682799][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4582.682799][ T253] ___sys_sendmsg+0xee/0x170 [ 4582.682799][ T253] __sys_sendmsg+0xcd/0x170 [ 4582.682799][ T253] do_syscall_64+0xc6/0x1e0 [ 4582.682799][ T253] [ 4582.685034][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4582.685034][ T253] netdev_get_by_index+0x5e/0x80 [ 4582.685034][ T253] fib6_nh_init+0x3d8/0x1580 [ 4582.685034][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4582.685034][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4582.685034][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4582.685034][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4582.685034][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4582.685034][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4582.685034][ T253] addrconf_dad_begin+0x310/0x670 [ 4582.685034][ T253] addrconf_dad_work+0x10b/0xab0 [ 4582.685034][ T253] process_one_work+0x84d/0x18a0 [ 4582.685034][ T253] worker_thread+0x587/0xd30 [ 4582.685034][ T253] kthread+0x28a/0x350 [ 4582.685034][ T253] ret_from_fork+0x31/0x70 [ 4582.685034][ T253] ret_from_fork_asm+0x1a/0x30 [ 4582.685034][ T253] [ 4582.687315][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4582.687315][ T253] netdev_get_by_index+0x5e/0x80 [ 4582.687315][ T253] fib6_nh_init+0x3d8/0x1580 [ 4582.687315][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4582.687315][ T253] ip6_route_add+0x1c/0x140 [ 4582.687315][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4582.687315][ T253] inet6_addr_add+0x4f8/0xa40 [ 4582.687315][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4582.687315][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4582.687315][ T253] netlink_rcv_skb+0x130/0x360 [ 4582.687315][ T253] netlink_unicast+0x449/0x710 [ 4582.687315][ T253] netlink_sendmsg+0x723/0xbe0 [ 4582.687315][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4582.687315][ T253] ___sys_sendmsg+0xee/0x170 [ 4582.687315][ T253] __sys_sendmsg+0xcd/0x170 [ 4582.687315][ T253] do_syscall_64+0xc6/0x1e0 [ 4582.687315][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4582.687315][ T253] [ 4582.689651][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4582.689651][ T253] netdev_get_by_index+0x5e/0x80 [ 4582.689651][ T253] fib6_nh_init+0x3d8/0x1580 [ 4582.689651][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4582.689651][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4582.689651][ T253] ipv6_add_addr+0x411/0x2000 [ 4582.689651][ T253] inet6_addr_add+0x30e/0xa40 [ 4582.689651][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4582.689651][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4582.689651][ T253] netlink_rcv_skb+0x130/0x360 [ 4582.689651][ T253] netlink_unicast+0x449/0x710 [ 4582.689651][ T253] netlink_sendmsg+0x723/0xbe0 [ 4582.689651][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4582.689651][ T253] ___sys_sendmsg+0xee/0x170 [ 4582.689651][ T253] __sys_sendmsg+0xcd/0x170 [ 4582.689651][ T253] do_syscall_64+0xc6/0x1e0 [ 4582.689651][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4582.689651][ T253] [ 4582.692004][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4582.692004][ T253] netdev_get_by_index+0x5e/0x80 [ 4582.692004][ T253] fib6_nh_init+0x3d8/0x1580 [ 4582.692004][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4582.692004][ T253] ip6_route_add+0x1c/0x140 [ 4582.692004][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4582.692004][ T253] addrconf_add_dev+0xe2/0x170 [ 4582.692004][ T253] inet6_addr_add+0x12f/0xa40 [ 4582.692004][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4582.692004][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4582.692004][ T253] netlink_rcv_skb+0x130/0x360 [ 4582.692004][ T253] netlink_unicast+0x449/0x710 [ 4582.692004][ T253] netlink_sendmsg+0x723/0xbe0 [ 4582.692004][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4582.692004][ T253] ___sys_sendmsg+0xee/0x170 [ 4582.692004][ T253] __sys_sendmsg+0xcd/0x170 [ 4582.692004][ T253] do_syscall_64+0xc6/0x1e0 [ 4582.692004][ T253] [ 4582.694343][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4582.694343][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4582.694343][ T253] ipv6_find_idev+0x102/0x170 [ 4582.694343][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4582.694343][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4582.694343][ T253] netlink_rcv_skb+0x130/0x360 [ 4582.694343][ T253] netlink_unicast+0x449/0x710 [ 4582.694343][ T253] netlink_sendmsg+0x723/0xbe0 [ 4582.694343][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4582.694343][ T253] ___sys_sendmsg+0xee/0x170 [ 4582.694343][ T253] __sys_sendmsg+0xcd/0x170 [ 4582.694343][ T253] do_syscall_64+0xc6/0x1e0 [ 4582.694343][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4582.694343][ T253] [ 4582.696181][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4582.696181][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4582.696181][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4582.696181][ T253] ipv6_find_idev+0x102/0x170 [ 4582.696181][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4582.696181][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4582.696181][ T253] netlink_rcv_skb+0x130/0x360 [ 4582.696181][ T253] netlink_unicast+0x449/0x710 [ 4582.696181][ T253] netlink_sendmsg+0x723/0xbe0 [ 4582.696181][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4582.696181][ T253] ___sys_sendmsg+0xee/0x170 [ 4582.696181][ T253] __sys_sendmsg+0xcd/0x170 [ 4582.696181][ T253] do_syscall_64+0xc6/0x1e0 [ 4582.696181][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4582.696181][ T253] [ 4592.938305][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4592.938783][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4592.938783][ T253] dst_init+0x84/0x4a0 [ 4592.938783][ T253] dst_alloc+0x97/0x150 [ 4592.938783][ T253] ip6_dst_alloc+0x23/0x90 [ 4592.938783][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4592.938783][ T253] ip6_pol_route+0x56f/0x840 [ 4592.938783][ T253] fib6_rule_lookup+0x334/0x630 [ 4592.938783][ T253] ip6_route_output_flags+0x259/0x480 [ 4592.938783][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4592.938783][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4592.938783][ T253] netlink_rcv_skb+0x130/0x360 [ 4592.938783][ T253] netlink_unicast+0x449/0x710 [ 4592.938783][ T253] netlink_sendmsg+0x723/0xbe0 [ 4592.938783][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4592.938783][ T253] ___sys_sendmsg+0xee/0x170 [ 4592.938783][ T253] __sys_sendmsg+0xcd/0x170 [ 4592.938783][ T253] do_syscall_64+0xc6/0x1e0 [ 4592.938783][ T253] [ 4592.941121][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4592.941121][ T253] netdev_get_by_index+0x5e/0x80 [ 4592.941121][ T253] fib6_nh_init+0x3d8/0x1580 [ 4592.941121][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4592.941121][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4592.941121][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4592.941121][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4592.941121][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4592.941121][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4592.941121][ T253] addrconf_dad_begin+0x310/0x670 [ 4592.941121][ T253] addrconf_dad_work+0x10b/0xab0 [ 4592.941121][ T253] process_one_work+0x84d/0x18a0 [ 4592.941121][ T253] worker_thread+0x587/0xd30 [ 4592.941121][ T253] kthread+0x28a/0x350 [ 4592.941121][ T253] ret_from_fork+0x31/0x70 [ 4592.941121][ T253] ret_from_fork_asm+0x1a/0x30 [ 4592.941121][ T253] [ 4592.943381][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4592.943381][ T253] netdev_get_by_index+0x5e/0x80 [ 4592.943381][ T253] fib6_nh_init+0x3d8/0x1580 [ 4592.943381][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4592.943381][ T253] ip6_route_add+0x1c/0x140 [ 4592.943381][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4592.943381][ T253] inet6_addr_add+0x4f8/0xa40 [ 4592.943381][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4592.943381][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4592.943381][ T253] netlink_rcv_skb+0x130/0x360 [ 4592.943381][ T253] netlink_unicast+0x449/0x710 [ 4592.943381][ T253] netlink_sendmsg+0x723/0xbe0 [ 4592.943381][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4592.943381][ T253] ___sys_sendmsg+0xee/0x170 [ 4592.943381][ T253] __sys_sendmsg+0xcd/0x170 [ 4592.943381][ T253] do_syscall_64+0xc6/0x1e0 [ 4592.943381][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4592.943381][ T253] [ 4592.945779][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4592.945779][ T253] netdev_get_by_index+0x5e/0x80 [ 4592.945779][ T253] fib6_nh_init+0x3d8/0x1580 [ 4592.945779][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4592.945779][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4592.945779][ T253] ipv6_add_addr+0x411/0x2000 [ 4592.945779][ T253] inet6_addr_add+0x30e/0xa40 [ 4592.945779][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4592.945779][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4592.945779][ T253] netlink_rcv_skb+0x130/0x360 [ 4592.945779][ T253] netlink_unicast+0x449/0x710 [ 4592.945779][ T253] netlink_sendmsg+0x723/0xbe0 [ 4592.945779][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4592.945779][ T253] ___sys_sendmsg+0xee/0x170 [ 4592.945779][ T253] __sys_sendmsg+0xcd/0x170 [ 4592.945779][ T253] do_syscall_64+0xc6/0x1e0 [ 4592.945779][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4592.945779][ T253] [ 4592.948091][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4592.948091][ T253] netdev_get_by_index+0x5e/0x80 [ 4592.948091][ T253] fib6_nh_init+0x3d8/0x1580 [ 4592.948091][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4592.948091][ T253] ip6_route_add+0x1c/0x140 [ 4592.948091][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4592.948091][ T253] addrconf_add_dev+0xe2/0x170 [ 4592.948091][ T253] inet6_addr_add+0x12f/0xa40 [ 4592.948091][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4592.948091][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4592.948091][ T253] netlink_rcv_skb+0x130/0x360 [ 4592.948091][ T253] netlink_unicast+0x449/0x710 [ 4592.948091][ T253] netlink_sendmsg+0x723/0xbe0 [ 4592.948091][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4592.948091][ T253] ___sys_sendmsg+0xee/0x170 [ 4592.948091][ T253] __sys_sendmsg+0xcd/0x170 [ 4592.948091][ T253] do_syscall_64+0xc6/0x1e0 [ 4592.948091][ T253] [ 4592.950286][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4592.950286][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4592.950286][ T253] ipv6_find_idev+0x102/0x170 [ 4592.950286][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4592.950286][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4592.950286][ T253] netlink_rcv_skb+0x130/0x360 [ 4592.950286][ T253] netlink_unicast+0x449/0x710 [ 4592.950286][ T253] netlink_sendmsg+0x723/0xbe0 [ 4592.950286][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4592.950286][ T253] ___sys_sendmsg+0xee/0x170 [ 4592.950286][ T253] __sys_sendmsg+0xcd/0x170 [ 4592.950286][ T253] do_syscall_64+0xc6/0x1e0 [ 4592.950286][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4592.950286][ T253] [ 4592.952006][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4592.952006][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4592.952006][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4592.952006][ T253] ipv6_find_idev+0x102/0x170 [ 4592.952006][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4592.952006][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4592.952006][ T253] netlink_rcv_skb+0x130/0x360 [ 4592.952006][ T253] netlink_unicast+0x449/0x710 [ 4592.952006][ T253] netlink_sendmsg+0x723/0xbe0 [ 4592.952006][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4592.952006][ T253] ___sys_sendmsg+0xee/0x170 [ 4592.952006][ T253] __sys_sendmsg+0xcd/0x170 [ 4592.952006][ T253] do_syscall_64+0xc6/0x1e0 [ 4592.952006][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4592.952006][ T253] [ 4603.194312][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4603.194718][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4603.194718][ T253] dst_init+0x84/0x4a0 [ 4603.194718][ T253] dst_alloc+0x97/0x150 [ 4603.194718][ T253] ip6_dst_alloc+0x23/0x90 [ 4603.194718][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4603.194718][ T253] ip6_pol_route+0x56f/0x840 [ 4603.194718][ T253] fib6_rule_lookup+0x334/0x630 [ 4603.194718][ T253] ip6_route_output_flags+0x259/0x480 [ 4603.194718][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4603.194718][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4603.194718][ T253] netlink_rcv_skb+0x130/0x360 [ 4603.194718][ T253] netlink_unicast+0x449/0x710 [ 4603.194718][ T253] netlink_sendmsg+0x723/0xbe0 [ 4603.194718][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4603.194718][ T253] ___sys_sendmsg+0xee/0x170 [ 4603.194718][ T253] __sys_sendmsg+0xcd/0x170 [ 4603.194718][ T253] do_syscall_64+0xc6/0x1e0 [ 4603.194718][ T253] [ 4603.197016][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4603.197016][ T253] netdev_get_by_index+0x5e/0x80 [ 4603.197016][ T253] fib6_nh_init+0x3d8/0x1580 [ 4603.197016][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4603.197016][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4603.197016][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4603.197016][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4603.197016][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4603.197016][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4603.197016][ T253] addrconf_dad_begin+0x310/0x670 [ 4603.197016][ T253] addrconf_dad_work+0x10b/0xab0 [ 4603.197016][ T253] process_one_work+0x84d/0x18a0 [ 4603.197016][ T253] worker_thread+0x587/0xd30 [ 4603.197016][ T253] kthread+0x28a/0x350 [ 4603.197016][ T253] ret_from_fork+0x31/0x70 [ 4603.197016][ T253] ret_from_fork_asm+0x1a/0x30 [ 4603.197016][ T253] [ 4603.199181][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4603.199181][ T253] netdev_get_by_index+0x5e/0x80 [ 4603.199181][ T253] fib6_nh_init+0x3d8/0x1580 [ 4603.199181][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4603.199181][ T253] ip6_route_add+0x1c/0x140 [ 4603.199181][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4603.199181][ T253] inet6_addr_add+0x4f8/0xa40 [ 4603.199181][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4603.199181][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4603.199181][ T253] netlink_rcv_skb+0x130/0x360 [ 4603.199181][ T253] netlink_unicast+0x449/0x710 [ 4603.199181][ T253] netlink_sendmsg+0x723/0xbe0 [ 4603.199181][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4603.199181][ T253] ___sys_sendmsg+0xee/0x170 [ 4603.199181][ T253] __sys_sendmsg+0xcd/0x170 [ 4603.199181][ T253] do_syscall_64+0xc6/0x1e0 [ 4603.199181][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4603.199181][ T253] [ 4603.201587][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4603.201587][ T253] netdev_get_by_index+0x5e/0x80 [ 4603.201587][ T253] fib6_nh_init+0x3d8/0x1580 [ 4603.201587][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4603.201587][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4603.201587][ T253] ipv6_add_addr+0x411/0x2000 [ 4603.201587][ T253] inet6_addr_add+0x30e/0xa40 [ 4603.201587][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4603.201587][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4603.201587][ T253] netlink_rcv_skb+0x130/0x360 [ 4603.201587][ T253] netlink_unicast+0x449/0x710 [ 4603.201587][ T253] netlink_sendmsg+0x723/0xbe0 [ 4603.201587][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4603.201587][ T253] ___sys_sendmsg+0xee/0x170 [ 4603.201587][ T253] __sys_sendmsg+0xcd/0x170 [ 4603.201587][ T253] do_syscall_64+0xc6/0x1e0 [ 4603.201587][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4603.201587][ T253] [ 4603.203914][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4603.203914][ T253] netdev_get_by_index+0x5e/0x80 [ 4603.203914][ T253] fib6_nh_init+0x3d8/0x1580 [ 4603.203914][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4603.203914][ T253] ip6_route_add+0x1c/0x140 [ 4603.203914][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4603.203914][ T253] addrconf_add_dev+0xe2/0x170 [ 4603.203914][ T253] inet6_addr_add+0x12f/0xa40 [ 4603.203914][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4603.203914][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4603.203914][ T253] netlink_rcv_skb+0x130/0x360 [ 4603.203914][ T253] netlink_unicast+0x449/0x710 [ 4603.203914][ T253] netlink_sendmsg+0x723/0xbe0 [ 4603.203914][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4603.203914][ T253] ___sys_sendmsg+0xee/0x170 [ 4603.203914][ T253] __sys_sendmsg+0xcd/0x170 [ 4603.203914][ T253] do_syscall_64+0xc6/0x1e0 [ 4603.203914][ T253] [ 4603.206287][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4603.206287][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4603.206287][ T253] ipv6_find_idev+0x102/0x170 [ 4603.206287][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4603.206287][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4603.206287][ T253] netlink_rcv_skb+0x130/0x360 [ 4603.206287][ T253] netlink_unicast+0x449/0x710 [ 4603.206287][ T253] netlink_sendmsg+0x723/0xbe0 [ 4603.206287][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4603.206287][ T253] ___sys_sendmsg+0xee/0x170 [ 4603.206287][ T253] __sys_sendmsg+0xcd/0x170 [ 4603.206287][ T253] do_syscall_64+0xc6/0x1e0 [ 4603.206287][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4603.206287][ T253] [ 4603.208135][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4603.208135][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4603.208135][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4603.208135][ T253] ipv6_find_idev+0x102/0x170 [ 4603.208135][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4603.208135][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4603.208135][ T253] netlink_rcv_skb+0x130/0x360 [ 4603.208135][ T253] netlink_unicast+0x449/0x710 [ 4603.208135][ T253] netlink_sendmsg+0x723/0xbe0 [ 4603.208135][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4603.208135][ T253] ___sys_sendmsg+0xee/0x170 [ 4603.208135][ T253] __sys_sendmsg+0xcd/0x170 [ 4603.208135][ T253] do_syscall_64+0xc6/0x1e0 [ 4603.208135][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4603.208135][ T253] [ 4613.450276][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4613.450754][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4613.450754][ T253] dst_init+0x84/0x4a0 [ 4613.450754][ T253] dst_alloc+0x97/0x150 [ 4613.450754][ T253] ip6_dst_alloc+0x23/0x90 [ 4613.450754][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4613.450754][ T253] ip6_pol_route+0x56f/0x840 [ 4613.450754][ T253] fib6_rule_lookup+0x334/0x630 [ 4613.450754][ T253] ip6_route_output_flags+0x259/0x480 [ 4613.450754][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4613.450754][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4613.450754][ T253] netlink_rcv_skb+0x130/0x360 [ 4613.450754][ T253] netlink_unicast+0x449/0x710 [ 4613.450754][ T253] netlink_sendmsg+0x723/0xbe0 [ 4613.450754][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4613.450754][ T253] ___sys_sendmsg+0xee/0x170 [ 4613.450754][ T253] __sys_sendmsg+0xcd/0x170 [ 4613.450754][ T253] do_syscall_64+0xc6/0x1e0 [ 4613.450754][ T253] [ 4613.453257][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4613.453257][ T253] netdev_get_by_index+0x5e/0x80 [ 4613.453257][ T253] fib6_nh_init+0x3d8/0x1580 [ 4613.453257][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4613.453257][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4613.453257][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4613.453257][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4613.453257][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4613.453257][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4613.453257][ T253] addrconf_dad_begin+0x310/0x670 [ 4613.453257][ T253] addrconf_dad_work+0x10b/0xab0 [ 4613.453257][ T253] process_one_work+0x84d/0x18a0 [ 4613.453257][ T253] worker_thread+0x587/0xd30 [ 4613.453257][ T253] kthread+0x28a/0x350 [ 4613.453257][ T253] ret_from_fork+0x31/0x70 [ 4613.453257][ T253] ret_from_fork_asm+0x1a/0x30 [ 4613.453257][ T253] [ 4613.455772][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4613.455772][ T253] netdev_get_by_index+0x5e/0x80 [ 4613.455772][ T253] fib6_nh_init+0x3d8/0x1580 [ 4613.455772][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4613.455772][ T253] ip6_route_add+0x1c/0x140 [ 4613.455772][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4613.455772][ T253] inet6_addr_add+0x4f8/0xa40 [ 4613.455772][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4613.455772][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4613.455772][ T253] netlink_rcv_skb+0x130/0x360 [ 4613.455772][ T253] netlink_unicast+0x449/0x710 [ 4613.455772][ T253] netlink_sendmsg+0x723/0xbe0 [ 4613.455772][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4613.455772][ T253] ___sys_sendmsg+0xee/0x170 [ 4613.455772][ T253] __sys_sendmsg+0xcd/0x170 [ 4613.455772][ T253] do_syscall_64+0xc6/0x1e0 [ 4613.455772][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4613.455772][ T253] [ 4613.458335][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4613.458335][ T253] netdev_get_by_index+0x5e/0x80 [ 4613.458335][ T253] fib6_nh_init+0x3d8/0x1580 [ 4613.458335][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4613.458335][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4613.458335][ T253] ipv6_add_addr+0x411/0x2000 [ 4613.458335][ T253] inet6_addr_add+0x30e/0xa40 [ 4613.458335][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4613.458335][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4613.458335][ T253] netlink_rcv_skb+0x130/0x360 [ 4613.458335][ T253] netlink_unicast+0x449/0x710 [ 4613.458335][ T253] netlink_sendmsg+0x723/0xbe0 [ 4613.458335][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4613.458335][ T253] ___sys_sendmsg+0xee/0x170 [ 4613.458335][ T253] __sys_sendmsg+0xcd/0x170 [ 4613.458335][ T253] do_syscall_64+0xc6/0x1e0 [ 4613.458335][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4613.458335][ T253] [ 4613.460797][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4613.460797][ T253] netdev_get_by_index+0x5e/0x80 [ 4613.460797][ T253] fib6_nh_init+0x3d8/0x1580 [ 4613.460797][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4613.460797][ T253] ip6_route_add+0x1c/0x140 [ 4613.460797][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4613.460797][ T253] addrconf_add_dev+0xe2/0x170 [ 4613.460797][ T253] inet6_addr_add+0x12f/0xa40 [ 4613.460797][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4613.460797][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4613.460797][ T253] netlink_rcv_skb+0x130/0x360 [ 4613.460797][ T253] netlink_unicast+0x449/0x710 [ 4613.460797][ T253] netlink_sendmsg+0x723/0xbe0 [ 4613.460797][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4613.460797][ T253] ___sys_sendmsg+0xee/0x170 [ 4613.460797][ T253] __sys_sendmsg+0xcd/0x170 [ 4613.460797][ T253] do_syscall_64+0xc6/0x1e0 [ 4613.460797][ T253] [ 4613.463318][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4613.463318][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4613.463318][ T253] ipv6_find_idev+0x102/0x170 [ 4613.463318][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4613.463318][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4613.463318][ T253] netlink_rcv_skb+0x130/0x360 [ 4613.463318][ T253] netlink_unicast+0x449/0x710 [ 4613.463318][ T253] netlink_sendmsg+0x723/0xbe0 [ 4613.463318][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4613.463318][ T253] ___sys_sendmsg+0xee/0x170 [ 4613.463318][ T253] __sys_sendmsg+0xcd/0x170 [ 4613.463318][ T253] do_syscall_64+0xc6/0x1e0 [ 4613.463318][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4613.463318][ T253] [ 4613.465338][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4613.465338][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4613.465338][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4613.465338][ T253] ipv6_find_idev+0x102/0x170 [ 4613.465338][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4613.465338][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4613.465338][ T253] netlink_rcv_skb+0x130/0x360 [ 4613.465338][ T253] netlink_unicast+0x449/0x710 [ 4613.465338][ T253] netlink_sendmsg+0x723/0xbe0 [ 4613.465338][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4613.465338][ T253] ___sys_sendmsg+0xee/0x170 [ 4613.465338][ T253] __sys_sendmsg+0xcd/0x170 [ 4613.465338][ T253] do_syscall_64+0xc6/0x1e0 [ 4613.465338][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4613.465338][ T253] [ 4623.706336][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4623.706835][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4623.706835][ T253] dst_init+0x84/0x4a0 [ 4623.706835][ T253] dst_alloc+0x97/0x150 [ 4623.706835][ T253] ip6_dst_alloc+0x23/0x90 [ 4623.706835][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4623.706835][ T253] ip6_pol_route+0x56f/0x840 [ 4623.706835][ T253] fib6_rule_lookup+0x334/0x630 [ 4623.706835][ T253] ip6_route_output_flags+0x259/0x480 [ 4623.706835][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4623.706835][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4623.706835][ T253] netlink_rcv_skb+0x130/0x360 [ 4623.706835][ T253] netlink_unicast+0x449/0x710 [ 4623.706835][ T253] netlink_sendmsg+0x723/0xbe0 [ 4623.706835][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4623.706835][ T253] ___sys_sendmsg+0xee/0x170 [ 4623.706835][ T253] __sys_sendmsg+0xcd/0x170 [ 4623.706835][ T253] do_syscall_64+0xc6/0x1e0 [ 4623.706835][ T253] [ 4623.709070][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4623.709070][ T253] netdev_get_by_index+0x5e/0x80 [ 4623.709070][ T253] fib6_nh_init+0x3d8/0x1580 [ 4623.709070][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4623.709070][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4623.709070][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4623.709070][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4623.709070][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4623.709070][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4623.709070][ T253] addrconf_dad_begin+0x310/0x670 [ 4623.709070][ T253] addrconf_dad_work+0x10b/0xab0 [ 4623.709070][ T253] process_one_work+0x84d/0x18a0 [ 4623.709070][ T253] worker_thread+0x587/0xd30 [ 4623.709070][ T253] kthread+0x28a/0x350 [ 4623.709070][ T253] ret_from_fork+0x31/0x70 [ 4623.709070][ T253] ret_from_fork_asm+0x1a/0x30 [ 4623.709070][ T253] [ 4623.711321][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4623.711321][ T253] netdev_get_by_index+0x5e/0x80 [ 4623.711321][ T253] fib6_nh_init+0x3d8/0x1580 [ 4623.711321][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4623.711321][ T253] ip6_route_add+0x1c/0x140 [ 4623.711321][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4623.711321][ T253] inet6_addr_add+0x4f8/0xa40 [ 4623.711321][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4623.711321][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4623.711321][ T253] netlink_rcv_skb+0x130/0x360 [ 4623.711321][ T253] netlink_unicast+0x449/0x710 [ 4623.711321][ T253] netlink_sendmsg+0x723/0xbe0 [ 4623.711321][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4623.711321][ T253] ___sys_sendmsg+0xee/0x170 [ 4623.711321][ T253] __sys_sendmsg+0xcd/0x170 [ 4623.711321][ T253] do_syscall_64+0xc6/0x1e0 [ 4623.711321][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4623.711321][ T253] [ 4623.713571][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4623.713571][ T253] netdev_get_by_index+0x5e/0x80 [ 4623.713571][ T253] fib6_nh_init+0x3d8/0x1580 [ 4623.713571][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4623.713571][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4623.713571][ T253] ipv6_add_addr+0x411/0x2000 [ 4623.713571][ T253] inet6_addr_add+0x30e/0xa40 [ 4623.713571][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4623.713571][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4623.713571][ T253] netlink_rcv_skb+0x130/0x360 [ 4623.713571][ T253] netlink_unicast+0x449/0x710 [ 4623.713571][ T253] netlink_sendmsg+0x723/0xbe0 [ 4623.713571][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4623.713571][ T253] ___sys_sendmsg+0xee/0x170 [ 4623.713571][ T253] __sys_sendmsg+0xcd/0x170 [ 4623.713571][ T253] do_syscall_64+0xc6/0x1e0 [ 4623.713571][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4623.713571][ T253] [ 4623.715831][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4623.715831][ T253] netdev_get_by_index+0x5e/0x80 [ 4623.715831][ T253] fib6_nh_init+0x3d8/0x1580 [ 4623.715831][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4623.715831][ T253] ip6_route_add+0x1c/0x140 [ 4623.715831][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4623.715831][ T253] addrconf_add_dev+0xe2/0x170 [ 4623.715831][ T253] inet6_addr_add+0x12f/0xa40 [ 4623.715831][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4623.715831][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4623.715831][ T253] netlink_rcv_skb+0x130/0x360 [ 4623.715831][ T253] netlink_unicast+0x449/0x710 [ 4623.715831][ T253] netlink_sendmsg+0x723/0xbe0 [ 4623.715831][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4623.715831][ T253] ___sys_sendmsg+0xee/0x170 [ 4623.715831][ T253] __sys_sendmsg+0xcd/0x170 [ 4623.715831][ T253] do_syscall_64+0xc6/0x1e0 [ 4623.715831][ T253] [ 4623.718078][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4623.718078][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4623.718078][ T253] ipv6_find_idev+0x102/0x170 [ 4623.718078][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4623.718078][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4623.718078][ T253] netlink_rcv_skb+0x130/0x360 [ 4623.718078][ T253] netlink_unicast+0x449/0x710 [ 4623.718078][ T253] netlink_sendmsg+0x723/0xbe0 [ 4623.718078][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4623.718078][ T253] ___sys_sendmsg+0xee/0x170 [ 4623.718078][ T253] __sys_sendmsg+0xcd/0x170 [ 4623.718078][ T253] do_syscall_64+0xc6/0x1e0 [ 4623.718078][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4623.718078][ T253] [ 4623.719806][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4623.719806][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4623.719806][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4623.719806][ T253] ipv6_find_idev+0x102/0x170 [ 4623.719806][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4623.719806][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4623.719806][ T253] netlink_rcv_skb+0x130/0x360 [ 4623.719806][ T253] netlink_unicast+0x449/0x710 [ 4623.719806][ T253] netlink_sendmsg+0x723/0xbe0 [ 4623.719806][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4623.719806][ T253] ___sys_sendmsg+0xee/0x170 [ 4623.719806][ T253] __sys_sendmsg+0xcd/0x170 [ 4623.719806][ T253] do_syscall_64+0xc6/0x1e0 [ 4623.719806][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4623.719806][ T253] [ 4633.962342][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4633.962814][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4633.962814][ T253] dst_init+0x84/0x4a0 [ 4633.962814][ T253] dst_alloc+0x97/0x150 [ 4633.962814][ T253] ip6_dst_alloc+0x23/0x90 [ 4633.962814][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4633.962814][ T253] ip6_pol_route+0x56f/0x840 [ 4633.962814][ T253] fib6_rule_lookup+0x334/0x630 [ 4633.962814][ T253] ip6_route_output_flags+0x259/0x480 [ 4633.962814][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4633.962814][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4633.962814][ T253] netlink_rcv_skb+0x130/0x360 [ 4633.962814][ T253] netlink_unicast+0x449/0x710 [ 4633.962814][ T253] netlink_sendmsg+0x723/0xbe0 [ 4633.962814][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4633.962814][ T253] ___sys_sendmsg+0xee/0x170 [ 4633.962814][ T253] __sys_sendmsg+0xcd/0x170 [ 4633.962814][ T253] do_syscall_64+0xc6/0x1e0 [ 4633.962814][ T253] [ 4633.965012][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4633.965012][ T253] netdev_get_by_index+0x5e/0x80 [ 4633.965012][ T253] fib6_nh_init+0x3d8/0x1580 [ 4633.965012][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4633.965012][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4633.965012][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4633.965012][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4633.965012][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4633.965012][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4633.965012][ T253] addrconf_dad_begin+0x310/0x670 [ 4633.965012][ T253] addrconf_dad_work+0x10b/0xab0 [ 4633.965012][ T253] process_one_work+0x84d/0x18a0 [ 4633.965012][ T253] worker_thread+0x587/0xd30 [ 4633.965012][ T253] kthread+0x28a/0x350 [ 4633.965012][ T253] ret_from_fork+0x31/0x70 [ 4633.965012][ T253] ret_from_fork_asm+0x1a/0x30 [ 4633.965012][ T253] [ 4633.967150][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4633.967150][ T253] netdev_get_by_index+0x5e/0x80 [ 4633.967150][ T253] fib6_nh_init+0x3d8/0x1580 [ 4633.967150][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4633.967150][ T253] ip6_route_add+0x1c/0x140 [ 4633.967150][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4633.967150][ T253] inet6_addr_add+0x4f8/0xa40 [ 4633.967150][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4633.967150][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4633.967150][ T253] netlink_rcv_skb+0x130/0x360 [ 4633.967150][ T253] netlink_unicast+0x449/0x710 [ 4633.967150][ T253] netlink_sendmsg+0x723/0xbe0 [ 4633.967150][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4633.967150][ T253] ___sys_sendmsg+0xee/0x170 [ 4633.967150][ T253] __sys_sendmsg+0xcd/0x170 [ 4633.967150][ T253] do_syscall_64+0xc6/0x1e0 [ 4633.967150][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4633.967150][ T253] [ 4633.969412][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4633.969412][ T253] netdev_get_by_index+0x5e/0x80 [ 4633.969412][ T253] fib6_nh_init+0x3d8/0x1580 [ 4633.969412][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4633.969412][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4633.969412][ T253] ipv6_add_addr+0x411/0x2000 [ 4633.969412][ T253] inet6_addr_add+0x30e/0xa40 [ 4633.969412][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4633.969412][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4633.969412][ T253] netlink_rcv_skb+0x130/0x360 [ 4633.969412][ T253] netlink_unicast+0x449/0x710 [ 4633.969412][ T253] netlink_sendmsg+0x723/0xbe0 [ 4633.969412][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4633.969412][ T253] ___sys_sendmsg+0xee/0x170 [ 4633.969412][ T253] __sys_sendmsg+0xcd/0x170 [ 4633.969412][ T253] do_syscall_64+0xc6/0x1e0 [ 4633.969412][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4633.969412][ T253] [ 4633.971664][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4633.971664][ T253] netdev_get_by_index+0x5e/0x80 [ 4633.971664][ T253] fib6_nh_init+0x3d8/0x1580 [ 4633.971664][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4633.971664][ T253] ip6_route_add+0x1c/0x140 [ 4633.971664][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4633.971664][ T253] addrconf_add_dev+0xe2/0x170 [ 4633.971664][ T253] inet6_addr_add+0x12f/0xa40 [ 4633.971664][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4633.971664][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4633.971664][ T253] netlink_rcv_skb+0x130/0x360 [ 4633.971664][ T253] netlink_unicast+0x449/0x710 [ 4633.971664][ T253] netlink_sendmsg+0x723/0xbe0 [ 4633.971664][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4633.971664][ T253] ___sys_sendmsg+0xee/0x170 [ 4633.971664][ T253] __sys_sendmsg+0xcd/0x170 [ 4633.971664][ T253] do_syscall_64+0xc6/0x1e0 [ 4633.971664][ T253] [ 4633.973866][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4633.973866][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4633.973866][ T253] ipv6_find_idev+0x102/0x170 [ 4633.973866][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4633.973866][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4633.973866][ T253] netlink_rcv_skb+0x130/0x360 [ 4633.973866][ T253] netlink_unicast+0x449/0x710 [ 4633.973866][ T253] netlink_sendmsg+0x723/0xbe0 [ 4633.973866][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4633.973866][ T253] ___sys_sendmsg+0xee/0x170 [ 4633.973866][ T253] __sys_sendmsg+0xcd/0x170 [ 4633.973866][ T253] do_syscall_64+0xc6/0x1e0 [ 4633.973866][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4633.973866][ T253] [ 4633.975597][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4633.975597][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4633.975597][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4633.975597][ T253] ipv6_find_idev+0x102/0x170 [ 4633.975597][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4633.975597][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4633.975597][ T253] netlink_rcv_skb+0x130/0x360 [ 4633.975597][ T253] netlink_unicast+0x449/0x710 [ 4633.975597][ T253] netlink_sendmsg+0x723/0xbe0 [ 4633.975597][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4633.975597][ T253] ___sys_sendmsg+0xee/0x170 [ 4633.975597][ T253] __sys_sendmsg+0xcd/0x170 [ 4633.975597][ T253] do_syscall_64+0xc6/0x1e0 [ 4633.975597][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4633.975597][ T253] [ 4644.146387][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4644.146872][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4644.146872][ T253] dst_init+0x84/0x4a0 [ 4644.146872][ T253] dst_alloc+0x97/0x150 [ 4644.146872][ T253] ip6_dst_alloc+0x23/0x90 [ 4644.146872][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4644.146872][ T253] ip6_pol_route+0x56f/0x840 [ 4644.146872][ T253] fib6_rule_lookup+0x334/0x630 [ 4644.146872][ T253] ip6_route_output_flags+0x259/0x480 [ 4644.146872][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4644.146872][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4644.146872][ T253] netlink_rcv_skb+0x130/0x360 [ 4644.146872][ T253] netlink_unicast+0x449/0x710 [ 4644.146872][ T253] netlink_sendmsg+0x723/0xbe0 [ 4644.146872][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4644.146872][ T253] ___sys_sendmsg+0xee/0x170 [ 4644.146872][ T253] __sys_sendmsg+0xcd/0x170 [ 4644.146872][ T253] do_syscall_64+0xc6/0x1e0 [ 4644.146872][ T253] [ 4644.149105][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4644.149105][ T253] netdev_get_by_index+0x5e/0x80 [ 4644.149105][ T253] fib6_nh_init+0x3d8/0x1580 [ 4644.149105][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4644.149105][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4644.149105][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4644.149105][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4644.149105][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4644.149105][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4644.149105][ T253] addrconf_dad_begin+0x310/0x670 [ 4644.149105][ T253] addrconf_dad_work+0x10b/0xab0 [ 4644.149105][ T253] process_one_work+0x84d/0x18a0 [ 4644.149105][ T253] worker_thread+0x587/0xd30 [ 4644.149105][ T253] kthread+0x28a/0x350 [ 4644.149105][ T253] ret_from_fork+0x31/0x70 [ 4644.149105][ T253] ret_from_fork_asm+0x1a/0x30 [ 4644.149105][ T253] [ 4644.151247][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4644.151247][ T253] netdev_get_by_index+0x5e/0x80 [ 4644.151247][ T253] fib6_nh_init+0x3d8/0x1580 [ 4644.151247][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4644.151247][ T253] ip6_route_add+0x1c/0x140 [ 4644.151247][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4644.151247][ T253] inet6_addr_add+0x4f8/0xa40 [ 4644.151247][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4644.151247][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4644.151247][ T253] netlink_rcv_skb+0x130/0x360 [ 4644.151247][ T253] netlink_unicast+0x449/0x710 [ 4644.151247][ T253] netlink_sendmsg+0x723/0xbe0 [ 4644.151247][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4644.151247][ T253] ___sys_sendmsg+0xee/0x170 [ 4644.151247][ T253] __sys_sendmsg+0xcd/0x170 [ 4644.151247][ T253] do_syscall_64+0xc6/0x1e0 [ 4644.151247][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4644.151247][ T253] [ 4644.153484][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4644.153484][ T253] netdev_get_by_index+0x5e/0x80 [ 4644.153484][ T253] fib6_nh_init+0x3d8/0x1580 [ 4644.153484][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4644.153484][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4644.153484][ T253] ipv6_add_addr+0x411/0x2000 [ 4644.153484][ T253] inet6_addr_add+0x30e/0xa40 [ 4644.153484][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4644.153484][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4644.153484][ T253] netlink_rcv_skb+0x130/0x360 [ 4644.153484][ T253] netlink_unicast+0x449/0x710 [ 4644.153484][ T253] netlink_sendmsg+0x723/0xbe0 [ 4644.153484][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4644.153484][ T253] ___sys_sendmsg+0xee/0x170 [ 4644.153484][ T253] __sys_sendmsg+0xcd/0x170 [ 4644.153484][ T253] do_syscall_64+0xc6/0x1e0 [ 4644.153484][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4644.153484][ T253] [ 4644.155722][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4644.155722][ T253] netdev_get_by_index+0x5e/0x80 [ 4644.155722][ T253] fib6_nh_init+0x3d8/0x1580 [ 4644.155722][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4644.155722][ T253] ip6_route_add+0x1c/0x140 [ 4644.155722][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4644.155722][ T253] addrconf_add_dev+0xe2/0x170 [ 4644.155722][ T253] inet6_addr_add+0x12f/0xa40 [ 4644.155722][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4644.155722][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4644.155722][ T253] netlink_rcv_skb+0x130/0x360 [ 4644.155722][ T253] netlink_unicast+0x449/0x710 [ 4644.155722][ T253] netlink_sendmsg+0x723/0xbe0 [ 4644.155722][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4644.155722][ T253] ___sys_sendmsg+0xee/0x170 [ 4644.155722][ T253] __sys_sendmsg+0xcd/0x170 [ 4644.155722][ T253] do_syscall_64+0xc6/0x1e0 [ 4644.155722][ T253] [ 4644.158044][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4644.158044][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4644.158044][ T253] ipv6_find_idev+0x102/0x170 [ 4644.158044][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4644.158044][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4644.158044][ T253] netlink_rcv_skb+0x130/0x360 [ 4644.158044][ T253] netlink_unicast+0x449/0x710 [ 4644.158044][ T253] netlink_sendmsg+0x723/0xbe0 [ 4644.158044][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4644.158044][ T253] ___sys_sendmsg+0xee/0x170 [ 4644.158044][ T253] __sys_sendmsg+0xcd/0x170 [ 4644.158044][ T253] do_syscall_64+0xc6/0x1e0 [ 4644.158044][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4644.158044][ T253] [ 4644.159768][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4644.159768][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4644.159768][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4644.159768][ T253] ipv6_find_idev+0x102/0x170 [ 4644.159768][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4644.159768][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4644.159768][ T253] netlink_rcv_skb+0x130/0x360 [ 4644.159768][ T253] netlink_unicast+0x449/0x710 [ 4644.159768][ T253] netlink_sendmsg+0x723/0xbe0 [ 4644.159768][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4644.159768][ T253] ___sys_sendmsg+0xee/0x170 [ 4644.159768][ T253] __sys_sendmsg+0xcd/0x170 [ 4644.159768][ T253] do_syscall_64+0xc6/0x1e0 [ 4644.159768][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4644.159768][ T253] [ 4654.410312][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4654.410802][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4654.410802][ T253] dst_init+0x84/0x4a0 [ 4654.410802][ T253] dst_alloc+0x97/0x150 [ 4654.410802][ T253] ip6_dst_alloc+0x23/0x90 [ 4654.410802][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4654.410802][ T253] ip6_pol_route+0x56f/0x840 [ 4654.410802][ T253] fib6_rule_lookup+0x334/0x630 [ 4654.410802][ T253] ip6_route_output_flags+0x259/0x480 [ 4654.410802][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4654.410802][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4654.410802][ T253] netlink_rcv_skb+0x130/0x360 [ 4654.410802][ T253] netlink_unicast+0x449/0x710 [ 4654.410802][ T253] netlink_sendmsg+0x723/0xbe0 [ 4654.410802][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4654.410802][ T253] ___sys_sendmsg+0xee/0x170 [ 4654.410802][ T253] __sys_sendmsg+0xcd/0x170 [ 4654.410802][ T253] do_syscall_64+0xc6/0x1e0 [ 4654.410802][ T253] [ 4654.413454][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4654.413454][ T253] netdev_get_by_index+0x5e/0x80 [ 4654.413454][ T253] fib6_nh_init+0x3d8/0x1580 [ 4654.413454][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4654.413454][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4654.413454][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4654.413454][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4654.413454][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4654.413454][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4654.413454][ T253] addrconf_dad_begin+0x310/0x670 [ 4654.413454][ T253] addrconf_dad_work+0x10b/0xab0 [ 4654.413454][ T253] process_one_work+0x84d/0x18a0 [ 4654.413454][ T253] worker_thread+0x587/0xd30 [ 4654.413454][ T253] kthread+0x28a/0x350 [ 4654.413454][ T253] ret_from_fork+0x31/0x70 [ 4654.413454][ T253] ret_from_fork_asm+0x1a/0x30 [ 4654.413454][ T253] [ 4654.416049][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4654.416049][ T253] netdev_get_by_index+0x5e/0x80 [ 4654.416049][ T253] fib6_nh_init+0x3d8/0x1580 [ 4654.416049][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4654.416049][ T253] ip6_route_add+0x1c/0x140 [ 4654.416049][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4654.416049][ T253] inet6_addr_add+0x4f8/0xa40 [ 4654.416049][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4654.416049][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4654.416049][ T253] netlink_rcv_skb+0x130/0x360 [ 4654.416049][ T253] netlink_unicast+0x449/0x710 [ 4654.416049][ T253] netlink_sendmsg+0x723/0xbe0 [ 4654.416049][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4654.416049][ T253] ___sys_sendmsg+0xee/0x170 [ 4654.416049][ T253] __sys_sendmsg+0xcd/0x170 [ 4654.416049][ T253] do_syscall_64+0xc6/0x1e0 [ 4654.416049][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4654.416049][ T253] [ 4654.418771][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4654.418771][ T253] netdev_get_by_index+0x5e/0x80 [ 4654.418771][ T253] fib6_nh_init+0x3d8/0x1580 [ 4654.418771][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4654.418771][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4654.418771][ T253] ipv6_add_addr+0x411/0x2000 [ 4654.418771][ T253] inet6_addr_add+0x30e/0xa40 [ 4654.418771][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4654.418771][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4654.418771][ T253] netlink_rcv_skb+0x130/0x360 [ 4654.418771][ T253] netlink_unicast+0x449/0x710 [ 4654.418771][ T253] netlink_sendmsg+0x723/0xbe0 [ 4654.418771][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4654.418771][ T253] ___sys_sendmsg+0xee/0x170 [ 4654.418771][ T253] __sys_sendmsg+0xcd/0x170 [ 4654.418771][ T253] do_syscall_64+0xc6/0x1e0 [ 4654.418771][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4654.418771][ T253] [ 4654.421485][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4654.421485][ T253] netdev_get_by_index+0x5e/0x80 [ 4654.421485][ T253] fib6_nh_init+0x3d8/0x1580 [ 4654.421485][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4654.421485][ T253] ip6_route_add+0x1c/0x140 [ 4654.421485][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4654.421485][ T253] addrconf_add_dev+0xe2/0x170 [ 4654.421485][ T253] inet6_addr_add+0x12f/0xa40 [ 4654.421485][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4654.421485][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4654.421485][ T253] netlink_rcv_skb+0x130/0x360 [ 4654.421485][ T253] netlink_unicast+0x449/0x710 [ 4654.421485][ T253] netlink_sendmsg+0x723/0xbe0 [ 4654.421485][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4654.421485][ T253] ___sys_sendmsg+0xee/0x170 [ 4654.421485][ T253] __sys_sendmsg+0xcd/0x170 [ 4654.421485][ T253] do_syscall_64+0xc6/0x1e0 [ 4654.421485][ T253] [ 4654.424150][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4654.424150][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4654.424150][ T253] ipv6_find_idev+0x102/0x170 [ 4654.424150][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4654.424150][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4654.424150][ T253] netlink_rcv_skb+0x130/0x360 [ 4654.424150][ T253] netlink_unicast+0x449/0x710 [ 4654.424150][ T253] netlink_sendmsg+0x723/0xbe0 [ 4654.424150][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4654.424150][ T253] ___sys_sendmsg+0xee/0x170 [ 4654.424150][ T253] __sys_sendmsg+0xcd/0x170 [ 4654.424150][ T253] do_syscall_64+0xc6/0x1e0 [ 4654.424150][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4654.424150][ T253] [ 4654.426233][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4654.426233][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4654.426233][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4654.426233][ T253] ipv6_find_idev+0x102/0x170 [ 4654.426233][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4654.426233][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4654.426233][ T253] netlink_rcv_skb+0x130/0x360 [ 4654.426233][ T253] netlink_unicast+0x449/0x710 [ 4654.426233][ T253] netlink_sendmsg+0x723/0xbe0 [ 4654.426233][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4654.426233][ T253] ___sys_sendmsg+0xee/0x170 [ 4654.426233][ T253] __sys_sendmsg+0xcd/0x170 [ 4654.426233][ T253] do_syscall_64+0xc6/0x1e0 [ 4654.426233][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4654.426233][ T253] [ 4664.674345][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4664.674781][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4664.674781][ T253] dst_init+0x84/0x4a0 [ 4664.674781][ T253] dst_alloc+0x97/0x150 [ 4664.674781][ T253] ip6_dst_alloc+0x23/0x90 [ 4664.674781][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4664.674781][ T253] ip6_pol_route+0x56f/0x840 [ 4664.674781][ T253] fib6_rule_lookup+0x334/0x630 [ 4664.674781][ T253] ip6_route_output_flags+0x259/0x480 [ 4664.674781][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4664.674781][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4664.674781][ T253] netlink_rcv_skb+0x130/0x360 [ 4664.674781][ T253] netlink_unicast+0x449/0x710 [ 4664.674781][ T253] netlink_sendmsg+0x723/0xbe0 [ 4664.674781][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4664.674781][ T253] ___sys_sendmsg+0xee/0x170 [ 4664.674781][ T253] __sys_sendmsg+0xcd/0x170 [ 4664.674781][ T253] do_syscall_64+0xc6/0x1e0 [ 4664.674781][ T253] [ 4664.677514][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4664.677514][ T253] netdev_get_by_index+0x5e/0x80 [ 4664.677514][ T253] fib6_nh_init+0x3d8/0x1580 [ 4664.677514][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4664.677514][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4664.677514][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4664.677514][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4664.677514][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4664.677514][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4664.677514][ T253] addrconf_dad_begin+0x310/0x670 [ 4664.677514][ T253] addrconf_dad_work+0x10b/0xab0 [ 4664.677514][ T253] process_one_work+0x84d/0x18a0 [ 4664.677514][ T253] worker_thread+0x587/0xd30 [ 4664.677514][ T253] kthread+0x28a/0x350 [ 4664.677514][ T253] ret_from_fork+0x31/0x70 [ 4664.677514][ T253] ret_from_fork_asm+0x1a/0x30 [ 4664.677514][ T253] [ 4664.679705][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4664.679705][ T253] netdev_get_by_index+0x5e/0x80 [ 4664.679705][ T253] fib6_nh_init+0x3d8/0x1580 [ 4664.679705][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4664.679705][ T253] ip6_route_add+0x1c/0x140 [ 4664.679705][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4664.679705][ T253] inet6_addr_add+0x4f8/0xa40 [ 4664.679705][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4664.679705][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4664.679705][ T253] netlink_rcv_skb+0x130/0x360 [ 4664.679705][ T253] netlink_unicast+0x449/0x710 [ 4664.679705][ T253] netlink_sendmsg+0x723/0xbe0 [ 4664.679705][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4664.679705][ T253] ___sys_sendmsg+0xee/0x170 [ 4664.679705][ T253] __sys_sendmsg+0xcd/0x170 [ 4664.679705][ T253] do_syscall_64+0xc6/0x1e0 [ 4664.679705][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4664.679705][ T253] [ 4664.681966][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4664.681966][ T253] netdev_get_by_index+0x5e/0x80 [ 4664.681966][ T253] fib6_nh_init+0x3d8/0x1580 [ 4664.681966][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4664.681966][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4664.681966][ T253] ipv6_add_addr+0x411/0x2000 [ 4664.681966][ T253] inet6_addr_add+0x30e/0xa40 [ 4664.681966][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4664.681966][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4664.681966][ T253] netlink_rcv_skb+0x130/0x360 [ 4664.681966][ T253] netlink_unicast+0x449/0x710 [ 4664.681966][ T253] netlink_sendmsg+0x723/0xbe0 [ 4664.681966][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4664.681966][ T253] ___sys_sendmsg+0xee/0x170 [ 4664.681966][ T253] __sys_sendmsg+0xcd/0x170 [ 4664.681966][ T253] do_syscall_64+0xc6/0x1e0 [ 4664.681966][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4664.681966][ T253] [ 4664.684230][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4664.684230][ T253] netdev_get_by_index+0x5e/0x80 [ 4664.684230][ T253] fib6_nh_init+0x3d8/0x1580 [ 4664.684230][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4664.684230][ T253] ip6_route_add+0x1c/0x140 [ 4664.684230][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4664.684230][ T253] addrconf_add_dev+0xe2/0x170 [ 4664.684230][ T253] inet6_addr_add+0x12f/0xa40 [ 4664.684230][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4664.684230][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4664.684230][ T253] netlink_rcv_skb+0x130/0x360 [ 4664.684230][ T253] netlink_unicast+0x449/0x710 [ 4664.684230][ T253] netlink_sendmsg+0x723/0xbe0 [ 4664.684230][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4664.684230][ T253] ___sys_sendmsg+0xee/0x170 [ 4664.684230][ T253] __sys_sendmsg+0xcd/0x170 [ 4664.684230][ T253] do_syscall_64+0xc6/0x1e0 [ 4664.684230][ T253] [ 4664.686452][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4664.686452][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4664.686452][ T253] ipv6_find_idev+0x102/0x170 [ 4664.686452][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4664.686452][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4664.686452][ T253] netlink_rcv_skb+0x130/0x360 [ 4664.686452][ T253] netlink_unicast+0x449/0x710 [ 4664.686452][ T253] netlink_sendmsg+0x723/0xbe0 [ 4664.686452][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4664.686452][ T253] ___sys_sendmsg+0xee/0x170 [ 4664.686452][ T253] __sys_sendmsg+0xcd/0x170 [ 4664.686452][ T253] do_syscall_64+0xc6/0x1e0 [ 4664.686452][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4664.686452][ T253] [ 4664.688201][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4664.688201][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4664.688201][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4664.688201][ T253] ipv6_find_idev+0x102/0x170 [ 4664.688201][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4664.688201][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4664.688201][ T253] netlink_rcv_skb+0x130/0x360 [ 4664.688201][ T253] netlink_unicast+0x449/0x710 [ 4664.688201][ T253] netlink_sendmsg+0x723/0xbe0 [ 4664.688201][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4664.688201][ T253] ___sys_sendmsg+0xee/0x170 [ 4664.688201][ T253] __sys_sendmsg+0xcd/0x170 [ 4664.688201][ T253] do_syscall_64+0xc6/0x1e0 [ 4664.688201][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4664.688201][ T253] [ 4674.938255][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4674.938756][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4674.938756][ T253] dst_init+0x84/0x4a0 [ 4674.938756][ T253] dst_alloc+0x97/0x150 [ 4674.938756][ T253] ip6_dst_alloc+0x23/0x90 [ 4674.938756][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4674.938756][ T253] ip6_pol_route+0x56f/0x840 [ 4674.938756][ T253] fib6_rule_lookup+0x334/0x630 [ 4674.938756][ T253] ip6_route_output_flags+0x259/0x480 [ 4674.938756][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4674.938756][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4674.938756][ T253] netlink_rcv_skb+0x130/0x360 [ 4674.938756][ T253] netlink_unicast+0x449/0x710 [ 4674.938756][ T253] netlink_sendmsg+0x723/0xbe0 [ 4674.938756][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4674.938756][ T253] ___sys_sendmsg+0xee/0x170 [ 4674.938756][ T253] __sys_sendmsg+0xcd/0x170 [ 4674.938756][ T253] do_syscall_64+0xc6/0x1e0 [ 4674.938756][ T253] [ 4674.941114][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4674.941114][ T253] netdev_get_by_index+0x5e/0x80 [ 4674.941114][ T253] fib6_nh_init+0x3d8/0x1580 [ 4674.941114][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4674.941114][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4674.941114][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4674.941114][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4674.941114][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4674.941114][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4674.941114][ T253] addrconf_dad_begin+0x310/0x670 [ 4674.941114][ T253] addrconf_dad_work+0x10b/0xab0 [ 4674.941114][ T253] process_one_work+0x84d/0x18a0 [ 4674.941114][ T253] worker_thread+0x587/0xd30 [ 4674.941114][ T253] kthread+0x28a/0x350 [ 4674.941114][ T253] ret_from_fork+0x31/0x70 [ 4674.941114][ T253] ret_from_fork_asm+0x1a/0x30 [ 4674.941114][ T253] [ 4674.943409][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4674.943409][ T253] netdev_get_by_index+0x5e/0x80 [ 4674.943409][ T253] fib6_nh_init+0x3d8/0x1580 [ 4674.943409][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4674.943409][ T253] ip6_route_add+0x1c/0x140 [ 4674.943409][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4674.943409][ T253] inet6_addr_add+0x4f8/0xa40 [ 4674.943409][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4674.943409][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4674.943409][ T253] netlink_rcv_skb+0x130/0x360 [ 4674.943409][ T253] netlink_unicast+0x449/0x710 [ 4674.943409][ T253] netlink_sendmsg+0x723/0xbe0 [ 4674.943409][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4674.943409][ T253] ___sys_sendmsg+0xee/0x170 [ 4674.943409][ T253] __sys_sendmsg+0xcd/0x170 [ 4674.943409][ T253] do_syscall_64+0xc6/0x1e0 [ 4674.943409][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4674.943409][ T253] [ 4674.945791][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4674.945791][ T253] netdev_get_by_index+0x5e/0x80 [ 4674.945791][ T253] fib6_nh_init+0x3d8/0x1580 [ 4674.945791][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4674.945791][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4674.945791][ T253] ipv6_add_addr+0x411/0x2000 [ 4674.945791][ T253] inet6_addr_add+0x30e/0xa40 [ 4674.945791][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4674.945791][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4674.945791][ T253] netlink_rcv_skb+0x130/0x360 [ 4674.945791][ T253] netlink_unicast+0x449/0x710 [ 4674.945791][ T253] netlink_sendmsg+0x723/0xbe0 [ 4674.945791][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4674.945791][ T253] ___sys_sendmsg+0xee/0x170 [ 4674.945791][ T253] __sys_sendmsg+0xcd/0x170 [ 4674.945791][ T253] do_syscall_64+0xc6/0x1e0 [ 4674.945791][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4674.945791][ T253] [ 4674.948251][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4674.948251][ T253] netdev_get_by_index+0x5e/0x80 [ 4674.948251][ T253] fib6_nh_init+0x3d8/0x1580 [ 4674.948251][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4674.948251][ T253] ip6_route_add+0x1c/0x140 [ 4674.948251][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4674.948251][ T253] addrconf_add_dev+0xe2/0x170 [ 4674.948251][ T253] inet6_addr_add+0x12f/0xa40 [ 4674.948251][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4674.948251][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4674.948251][ T253] netlink_rcv_skb+0x130/0x360 [ 4674.948251][ T253] netlink_unicast+0x449/0x710 [ 4674.948251][ T253] netlink_sendmsg+0x723/0xbe0 [ 4674.948251][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4674.948251][ T253] ___sys_sendmsg+0xee/0x170 [ 4674.948251][ T253] __sys_sendmsg+0xcd/0x170 [ 4674.948251][ T253] do_syscall_64+0xc6/0x1e0 [ 4674.948251][ T253] [ 4674.950499][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4674.950499][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4674.950499][ T253] ipv6_find_idev+0x102/0x170 [ 4674.950499][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4674.950499][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4674.950499][ T253] netlink_rcv_skb+0x130/0x360 [ 4674.950499][ T253] netlink_unicast+0x449/0x710 [ 4674.950499][ T253] netlink_sendmsg+0x723/0xbe0 [ 4674.950499][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4674.950499][ T253] ___sys_sendmsg+0xee/0x170 [ 4674.950499][ T253] __sys_sendmsg+0xcd/0x170 [ 4674.950499][ T253] do_syscall_64+0xc6/0x1e0 [ 4674.950499][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4674.950499][ T253] [ 4674.952295][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4674.952295][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4674.952295][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4674.952295][ T253] ipv6_find_idev+0x102/0x170 [ 4674.952295][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4674.952295][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4674.952295][ T253] netlink_rcv_skb+0x130/0x360 [ 4674.952295][ T253] netlink_unicast+0x449/0x710 [ 4674.952295][ T253] netlink_sendmsg+0x723/0xbe0 [ 4674.952295][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4674.952295][ T253] ___sys_sendmsg+0xee/0x170 [ 4674.952295][ T253] __sys_sendmsg+0xcd/0x170 [ 4674.952295][ T253] do_syscall_64+0xc6/0x1e0 [ 4674.952295][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4674.952295][ T253] [ 4685.202250][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4685.202686][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4685.202686][ T253] dst_init+0x84/0x4a0 [ 4685.202686][ T253] dst_alloc+0x97/0x150 [ 4685.202686][ T253] ip6_dst_alloc+0x23/0x90 [ 4685.202686][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4685.202686][ T253] ip6_pol_route+0x56f/0x840 [ 4685.202686][ T253] fib6_rule_lookup+0x334/0x630 [ 4685.202686][ T253] ip6_route_output_flags+0x259/0x480 [ 4685.202686][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4685.202686][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4685.202686][ T253] netlink_rcv_skb+0x130/0x360 [ 4685.202686][ T253] netlink_unicast+0x449/0x710 [ 4685.202686][ T253] netlink_sendmsg+0x723/0xbe0 [ 4685.202686][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4685.202686][ T253] ___sys_sendmsg+0xee/0x170 [ 4685.202686][ T253] __sys_sendmsg+0xcd/0x170 [ 4685.202686][ T253] do_syscall_64+0xc6/0x1e0 [ 4685.202686][ T253] [ 4685.204926][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4685.204926][ T253] netdev_get_by_index+0x5e/0x80 [ 4685.204926][ T253] fib6_nh_init+0x3d8/0x1580 [ 4685.204926][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4685.204926][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4685.204926][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4685.204926][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4685.204926][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4685.204926][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4685.204926][ T253] addrconf_dad_begin+0x310/0x670 [ 4685.204926][ T253] addrconf_dad_work+0x10b/0xab0 [ 4685.204926][ T253] process_one_work+0x84d/0x18a0 [ 4685.204926][ T253] worker_thread+0x587/0xd30 [ 4685.204926][ T253] kthread+0x28a/0x350 [ 4685.204926][ T253] ret_from_fork+0x31/0x70 [ 4685.204926][ T253] ret_from_fork_asm+0x1a/0x30 [ 4685.204926][ T253] [ 4685.207096][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4685.207096][ T253] netdev_get_by_index+0x5e/0x80 [ 4685.207096][ T253] fib6_nh_init+0x3d8/0x1580 [ 4685.207096][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4685.207096][ T253] ip6_route_add+0x1c/0x140 [ 4685.207096][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4685.207096][ T253] inet6_addr_add+0x4f8/0xa40 [ 4685.207096][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4685.207096][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4685.207096][ T253] netlink_rcv_skb+0x130/0x360 [ 4685.207096][ T253] netlink_unicast+0x449/0x710 [ 4685.207096][ T253] netlink_sendmsg+0x723/0xbe0 [ 4685.207096][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4685.207096][ T253] ___sys_sendmsg+0xee/0x170 [ 4685.207096][ T253] __sys_sendmsg+0xcd/0x170 [ 4685.207096][ T253] do_syscall_64+0xc6/0x1e0 [ 4685.207096][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4685.207096][ T253] [ 4685.209397][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4685.209397][ T253] netdev_get_by_index+0x5e/0x80 [ 4685.209397][ T253] fib6_nh_init+0x3d8/0x1580 [ 4685.209397][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4685.209397][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4685.209397][ T253] ipv6_add_addr+0x411/0x2000 [ 4685.209397][ T253] inet6_addr_add+0x30e/0xa40 [ 4685.209397][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4685.209397][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4685.209397][ T253] netlink_rcv_skb+0x130/0x360 [ 4685.209397][ T253] netlink_unicast+0x449/0x710 [ 4685.209397][ T253] netlink_sendmsg+0x723/0xbe0 [ 4685.209397][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4685.209397][ T253] ___sys_sendmsg+0xee/0x170 [ 4685.209397][ T253] __sys_sendmsg+0xcd/0x170 [ 4685.209397][ T253] do_syscall_64+0xc6/0x1e0 [ 4685.209397][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4685.209397][ T253] [ 4685.211683][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4685.211683][ T253] netdev_get_by_index+0x5e/0x80 [ 4685.211683][ T253] fib6_nh_init+0x3d8/0x1580 [ 4685.211683][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4685.211683][ T253] ip6_route_add+0x1c/0x140 [ 4685.211683][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4685.211683][ T253] addrconf_add_dev+0xe2/0x170 [ 4685.211683][ T253] inet6_addr_add+0x12f/0xa40 [ 4685.211683][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4685.211683][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4685.211683][ T253] netlink_rcv_skb+0x130/0x360 [ 4685.211683][ T253] netlink_unicast+0x449/0x710 [ 4685.211683][ T253] netlink_sendmsg+0x723/0xbe0 [ 4685.211683][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4685.211683][ T253] ___sys_sendmsg+0xee/0x170 [ 4685.211683][ T253] __sys_sendmsg+0xcd/0x170 [ 4685.211683][ T253] do_syscall_64+0xc6/0x1e0 [ 4685.211683][ T253] [ 4685.213935][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4685.213935][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4685.213935][ T253] ipv6_find_idev+0x102/0x170 [ 4685.213935][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4685.213935][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4685.213935][ T253] netlink_rcv_skb+0x130/0x360 [ 4685.213935][ T253] netlink_unicast+0x449/0x710 [ 4685.213935][ T253] netlink_sendmsg+0x723/0xbe0 [ 4685.213935][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4685.213935][ T253] ___sys_sendmsg+0xee/0x170 [ 4685.213935][ T253] __sys_sendmsg+0xcd/0x170 [ 4685.213935][ T253] do_syscall_64+0xc6/0x1e0 [ 4685.213935][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4685.213935][ T253] [ 4685.215783][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4685.215783][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4685.215783][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4685.215783][ T253] ipv6_find_idev+0x102/0x170 [ 4685.215783][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4685.215783][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4685.215783][ T253] netlink_rcv_skb+0x130/0x360 [ 4685.215783][ T253] netlink_unicast+0x449/0x710 [ 4685.215783][ T253] netlink_sendmsg+0x723/0xbe0 [ 4685.215783][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4685.215783][ T253] ___sys_sendmsg+0xee/0x170 [ 4685.215783][ T253] __sys_sendmsg+0xcd/0x170 [ 4685.215783][ T253] do_syscall_64+0xc6/0x1e0 [ 4685.215783][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4685.215783][ T253] [ 4695.290316][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4695.290794][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4695.290794][ T253] dst_init+0x84/0x4a0 [ 4695.290794][ T253] dst_alloc+0x97/0x150 [ 4695.290794][ T253] ip6_dst_alloc+0x23/0x90 [ 4695.290794][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4695.290794][ T253] ip6_pol_route+0x56f/0x840 [ 4695.290794][ T253] fib6_rule_lookup+0x334/0x630 [ 4695.290794][ T253] ip6_route_output_flags+0x259/0x480 [ 4695.290794][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4695.290794][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4695.290794][ T253] netlink_rcv_skb+0x130/0x360 [ 4695.290794][ T253] netlink_unicast+0x449/0x710 [ 4695.290794][ T253] netlink_sendmsg+0x723/0xbe0 [ 4695.290794][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4695.290794][ T253] ___sys_sendmsg+0xee/0x170 [ 4695.290794][ T253] __sys_sendmsg+0xcd/0x170 [ 4695.290794][ T253] do_syscall_64+0xc6/0x1e0 [ 4695.290794][ T253] [ 4695.293412][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4695.293412][ T253] netdev_get_by_index+0x5e/0x80 [ 4695.293412][ T253] fib6_nh_init+0x3d8/0x1580 [ 4695.293412][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4695.293412][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4695.293412][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4695.293412][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4695.293412][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4695.293412][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4695.293412][ T253] addrconf_dad_begin+0x310/0x670 [ 4695.293412][ T253] addrconf_dad_work+0x10b/0xab0 [ 4695.293412][ T253] process_one_work+0x84d/0x18a0 [ 4695.293412][ T253] worker_thread+0x587/0xd30 [ 4695.293412][ T253] kthread+0x28a/0x350 [ 4695.293412][ T253] ret_from_fork+0x31/0x70 [ 4695.293412][ T253] ret_from_fork_asm+0x1a/0x30 [ 4695.293412][ T253] [ 4695.296015][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4695.296015][ T253] netdev_get_by_index+0x5e/0x80 [ 4695.296015][ T253] fib6_nh_init+0x3d8/0x1580 [ 4695.296015][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4695.296015][ T253] ip6_route_add+0x1c/0x140 [ 4695.296015][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4695.296015][ T253] inet6_addr_add+0x4f8/0xa40 [ 4695.296015][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4695.296015][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4695.296015][ T253] netlink_rcv_skb+0x130/0x360 [ 4695.296015][ T253] netlink_unicast+0x449/0x710 [ 4695.296015][ T253] netlink_sendmsg+0x723/0xbe0 [ 4695.296015][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4695.296015][ T253] ___sys_sendmsg+0xee/0x170 [ 4695.296015][ T253] __sys_sendmsg+0xcd/0x170 [ 4695.296015][ T253] do_syscall_64+0xc6/0x1e0 [ 4695.296015][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4695.296015][ T253] [ 4695.298739][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4695.298739][ T253] netdev_get_by_index+0x5e/0x80 [ 4695.298739][ T253] fib6_nh_init+0x3d8/0x1580 [ 4695.298739][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4695.298739][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4695.298739][ T253] ipv6_add_addr+0x411/0x2000 [ 4695.298739][ T253] inet6_addr_add+0x30e/0xa40 [ 4695.298739][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4695.298739][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4695.298739][ T253] netlink_rcv_skb+0x130/0x360 [ 4695.298739][ T253] netlink_unicast+0x449/0x710 [ 4695.298739][ T253] netlink_sendmsg+0x723/0xbe0 [ 4695.298739][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4695.298739][ T253] ___sys_sendmsg+0xee/0x170 [ 4695.298739][ T253] __sys_sendmsg+0xcd/0x170 [ 4695.298739][ T253] do_syscall_64+0xc6/0x1e0 [ 4695.298739][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4695.298739][ T253] [ 4695.301466][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4695.301466][ T253] netdev_get_by_index+0x5e/0x80 [ 4695.301466][ T253] fib6_nh_init+0x3d8/0x1580 [ 4695.301466][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4695.301466][ T253] ip6_route_add+0x1c/0x140 [ 4695.301466][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4695.301466][ T253] addrconf_add_dev+0xe2/0x170 [ 4695.301466][ T253] inet6_addr_add+0x12f/0xa40 [ 4695.301466][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4695.301466][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4695.301466][ T253] netlink_rcv_skb+0x130/0x360 [ 4695.301466][ T253] netlink_unicast+0x449/0x710 [ 4695.301466][ T253] netlink_sendmsg+0x723/0xbe0 [ 4695.301466][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4695.301466][ T253] ___sys_sendmsg+0xee/0x170 [ 4695.301466][ T253] __sys_sendmsg+0xcd/0x170 [ 4695.301466][ T253] do_syscall_64+0xc6/0x1e0 [ 4695.301466][ T253] [ 4695.304151][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4695.304151][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4695.304151][ T253] ipv6_find_idev+0x102/0x170 [ 4695.304151][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4695.304151][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4695.304151][ T253] netlink_rcv_skb+0x130/0x360 [ 4695.304151][ T253] netlink_unicast+0x449/0x710 [ 4695.304151][ T253] netlink_sendmsg+0x723/0xbe0 [ 4695.304151][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4695.304151][ T253] ___sys_sendmsg+0xee/0x170 [ 4695.304151][ T253] __sys_sendmsg+0xcd/0x170 [ 4695.304151][ T253] do_syscall_64+0xc6/0x1e0 [ 4695.304151][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4695.304151][ T253] [ 4695.306238][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4695.306238][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4695.306238][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4695.306238][ T253] ipv6_find_idev+0x102/0x170 [ 4695.306238][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4695.306238][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4695.306238][ T253] netlink_rcv_skb+0x130/0x360 [ 4695.306238][ T253] netlink_unicast+0x449/0x710 [ 4695.306238][ T253] netlink_sendmsg+0x723/0xbe0 [ 4695.306238][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4695.306238][ T253] ___sys_sendmsg+0xee/0x170 [ 4695.306238][ T253] __sys_sendmsg+0xcd/0x170 [ 4695.306238][ T253] do_syscall_64+0xc6/0x1e0 [ 4695.306238][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4695.306238][ T253] [ 4705.546330][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4705.546746][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4705.546746][ T253] dst_init+0x84/0x4a0 [ 4705.546746][ T253] dst_alloc+0x97/0x150 [ 4705.546746][ T253] ip6_dst_alloc+0x23/0x90 [ 4705.546746][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4705.546746][ T253] ip6_pol_route+0x56f/0x840 [ 4705.546746][ T253] fib6_rule_lookup+0x334/0x630 [ 4705.546746][ T253] ip6_route_output_flags+0x259/0x480 [ 4705.546746][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4705.546746][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4705.546746][ T253] netlink_rcv_skb+0x130/0x360 [ 4705.546746][ T253] netlink_unicast+0x449/0x710 [ 4705.546746][ T253] netlink_sendmsg+0x723/0xbe0 [ 4705.546746][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4705.546746][ T253] ___sys_sendmsg+0xee/0x170 [ 4705.546746][ T253] __sys_sendmsg+0xcd/0x170 [ 4705.546746][ T253] do_syscall_64+0xc6/0x1e0 [ 4705.546746][ T253] [ 4705.548957][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4705.548957][ T253] netdev_get_by_index+0x5e/0x80 [ 4705.548957][ T253] fib6_nh_init+0x3d8/0x1580 [ 4705.548957][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4705.548957][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4705.548957][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4705.548957][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4705.548957][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4705.548957][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4705.548957][ T253] addrconf_dad_begin+0x310/0x670 [ 4705.548957][ T253] addrconf_dad_work+0x10b/0xab0 [ 4705.548957][ T253] process_one_work+0x84d/0x18a0 [ 4705.548957][ T253] worker_thread+0x587/0xd30 [ 4705.548957][ T253] kthread+0x28a/0x350 [ 4705.548957][ T253] ret_from_fork+0x31/0x70 [ 4705.548957][ T253] ret_from_fork_asm+0x1a/0x30 [ 4705.548957][ T253] [ 4705.551101][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4705.551101][ T253] netdev_get_by_index+0x5e/0x80 [ 4705.551101][ T253] fib6_nh_init+0x3d8/0x1580 [ 4705.551101][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4705.551101][ T253] ip6_route_add+0x1c/0x140 [ 4705.551101][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4705.551101][ T253] inet6_addr_add+0x4f8/0xa40 [ 4705.551101][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4705.551101][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4705.551101][ T253] netlink_rcv_skb+0x130/0x360 [ 4705.551101][ T253] netlink_unicast+0x449/0x710 [ 4705.551101][ T253] netlink_sendmsg+0x723/0xbe0 [ 4705.551101][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4705.551101][ T253] ___sys_sendmsg+0xee/0x170 [ 4705.551101][ T253] __sys_sendmsg+0xcd/0x170 [ 4705.551101][ T253] do_syscall_64+0xc6/0x1e0 [ 4705.551101][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4705.551101][ T253] [ 4705.553345][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4705.553345][ T253] netdev_get_by_index+0x5e/0x80 [ 4705.553345][ T253] fib6_nh_init+0x3d8/0x1580 [ 4705.553345][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4705.553345][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4705.553345][ T253] ipv6_add_addr+0x411/0x2000 [ 4705.553345][ T253] inet6_addr_add+0x30e/0xa40 [ 4705.553345][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4705.553345][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4705.553345][ T253] netlink_rcv_skb+0x130/0x360 [ 4705.553345][ T253] netlink_unicast+0x449/0x710 [ 4705.553345][ T253] netlink_sendmsg+0x723/0xbe0 [ 4705.553345][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4705.553345][ T253] ___sys_sendmsg+0xee/0x170 [ 4705.553345][ T253] __sys_sendmsg+0xcd/0x170 [ 4705.553345][ T253] do_syscall_64+0xc6/0x1e0 [ 4705.553345][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4705.553345][ T253] [ 4705.555706][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4705.555706][ T253] netdev_get_by_index+0x5e/0x80 [ 4705.555706][ T253] fib6_nh_init+0x3d8/0x1580 [ 4705.555706][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4705.555706][ T253] ip6_route_add+0x1c/0x140 [ 4705.555706][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4705.555706][ T253] addrconf_add_dev+0xe2/0x170 [ 4705.555706][ T253] inet6_addr_add+0x12f/0xa40 [ 4705.555706][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4705.555706][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4705.555706][ T253] netlink_rcv_skb+0x130/0x360 [ 4705.555706][ T253] netlink_unicast+0x449/0x710 [ 4705.555706][ T253] netlink_sendmsg+0x723/0xbe0 [ 4705.555706][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4705.555706][ T253] ___sys_sendmsg+0xee/0x170 [ 4705.555706][ T253] __sys_sendmsg+0xcd/0x170 [ 4705.555706][ T253] do_syscall_64+0xc6/0x1e0 [ 4705.555706][ T253] [ 4705.557925][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4705.557925][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4705.557925][ T253] ipv6_find_idev+0x102/0x170 [ 4705.557925][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4705.557925][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4705.557925][ T253] netlink_rcv_skb+0x130/0x360 [ 4705.557925][ T253] netlink_unicast+0x449/0x710 [ 4705.557925][ T253] netlink_sendmsg+0x723/0xbe0 [ 4705.557925][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4705.557925][ T253] ___sys_sendmsg+0xee/0x170 [ 4705.557925][ T253] __sys_sendmsg+0xcd/0x170 [ 4705.557925][ T253] do_syscall_64+0xc6/0x1e0 [ 4705.557925][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4705.557925][ T253] [ 4705.559655][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4705.559655][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4705.559655][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4705.559655][ T253] ipv6_find_idev+0x102/0x170 [ 4705.559655][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4705.559655][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4705.559655][ T253] netlink_rcv_skb+0x130/0x360 [ 4705.559655][ T253] netlink_unicast+0x449/0x710 [ 4705.559655][ T253] netlink_sendmsg+0x723/0xbe0 [ 4705.559655][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4705.559655][ T253] ___sys_sendmsg+0xee/0x170 [ 4705.559655][ T253] __sys_sendmsg+0xcd/0x170 [ 4705.559655][ T253] do_syscall_64+0xc6/0x1e0 [ 4705.559655][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4705.559655][ T253] [ 4715.802351][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4715.802866][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4715.802866][ T253] dst_init+0x84/0x4a0 [ 4715.802866][ T253] dst_alloc+0x97/0x150 [ 4715.802866][ T253] ip6_dst_alloc+0x23/0x90 [ 4715.802866][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4715.802866][ T253] ip6_pol_route+0x56f/0x840 [ 4715.802866][ T253] fib6_rule_lookup+0x334/0x630 [ 4715.802866][ T253] ip6_route_output_flags+0x259/0x480 [ 4715.802866][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4715.802866][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4715.802866][ T253] netlink_rcv_skb+0x130/0x360 [ 4715.802866][ T253] netlink_unicast+0x449/0x710 [ 4715.802866][ T253] netlink_sendmsg+0x723/0xbe0 [ 4715.802866][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4715.802866][ T253] ___sys_sendmsg+0xee/0x170 [ 4715.802866][ T253] __sys_sendmsg+0xcd/0x170 [ 4715.802866][ T253] do_syscall_64+0xc6/0x1e0 [ 4715.802866][ T253] [ 4715.805062][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4715.805062][ T253] netdev_get_by_index+0x5e/0x80 [ 4715.805062][ T253] fib6_nh_init+0x3d8/0x1580 [ 4715.805062][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4715.805062][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4715.805062][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4715.805062][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4715.805062][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4715.805062][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4715.805062][ T253] addrconf_dad_begin+0x310/0x670 [ 4715.805062][ T253] addrconf_dad_work+0x10b/0xab0 [ 4715.805062][ T253] process_one_work+0x84d/0x18a0 [ 4715.805062][ T253] worker_thread+0x587/0xd30 [ 4715.805062][ T253] kthread+0x28a/0x350 [ 4715.805062][ T253] ret_from_fork+0x31/0x70 [ 4715.805062][ T253] ret_from_fork_asm+0x1a/0x30 [ 4715.805062][ T253] [ 4715.807202][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4715.807202][ T253] netdev_get_by_index+0x5e/0x80 [ 4715.807202][ T253] fib6_nh_init+0x3d8/0x1580 [ 4715.807202][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4715.807202][ T253] ip6_route_add+0x1c/0x140 [ 4715.807202][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4715.807202][ T253] inet6_addr_add+0x4f8/0xa40 [ 4715.807202][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4715.807202][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4715.807202][ T253] netlink_rcv_skb+0x130/0x360 [ 4715.807202][ T253] netlink_unicast+0x449/0x710 [ 4715.807202][ T253] netlink_sendmsg+0x723/0xbe0 [ 4715.807202][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4715.807202][ T253] ___sys_sendmsg+0xee/0x170 [ 4715.807202][ T253] __sys_sendmsg+0xcd/0x170 [ 4715.807202][ T253] do_syscall_64+0xc6/0x1e0 [ 4715.807202][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4715.807202][ T253] [ 4715.809449][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4715.809449][ T253] netdev_get_by_index+0x5e/0x80 [ 4715.809449][ T253] fib6_nh_init+0x3d8/0x1580 [ 4715.809449][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4715.809449][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4715.809449][ T253] ipv6_add_addr+0x411/0x2000 [ 4715.809449][ T253] inet6_addr_add+0x30e/0xa40 [ 4715.809449][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4715.809449][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4715.809449][ T253] netlink_rcv_skb+0x130/0x360 [ 4715.809449][ T253] netlink_unicast+0x449/0x710 [ 4715.809449][ T253] netlink_sendmsg+0x723/0xbe0 [ 4715.809449][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4715.809449][ T253] ___sys_sendmsg+0xee/0x170 [ 4715.809449][ T253] __sys_sendmsg+0xcd/0x170 [ 4715.809449][ T253] do_syscall_64+0xc6/0x1e0 [ 4715.809449][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4715.809449][ T253] [ 4715.811689][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4715.811689][ T253] netdev_get_by_index+0x5e/0x80 [ 4715.811689][ T253] fib6_nh_init+0x3d8/0x1580 [ 4715.811689][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4715.811689][ T253] ip6_route_add+0x1c/0x140 [ 4715.811689][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4715.811689][ T253] addrconf_add_dev+0xe2/0x170 [ 4715.811689][ T253] inet6_addr_add+0x12f/0xa40 [ 4715.811689][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4715.811689][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4715.811689][ T253] netlink_rcv_skb+0x130/0x360 [ 4715.811689][ T253] netlink_unicast+0x449/0x710 [ 4715.811689][ T253] netlink_sendmsg+0x723/0xbe0 [ 4715.811689][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4715.811689][ T253] ___sys_sendmsg+0xee/0x170 [ 4715.811689][ T253] __sys_sendmsg+0xcd/0x170 [ 4715.811689][ T253] do_syscall_64+0xc6/0x1e0 [ 4715.811689][ T253] [ 4715.813915][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4715.813915][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4715.813915][ T253] ipv6_find_idev+0x102/0x170 [ 4715.813915][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4715.813915][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4715.813915][ T253] netlink_rcv_skb+0x130/0x360 [ 4715.813915][ T253] netlink_unicast+0x449/0x710 [ 4715.813915][ T253] netlink_sendmsg+0x723/0xbe0 [ 4715.813915][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4715.813915][ T253] ___sys_sendmsg+0xee/0x170 [ 4715.813915][ T253] __sys_sendmsg+0xcd/0x170 [ 4715.813915][ T253] do_syscall_64+0xc6/0x1e0 [ 4715.813915][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4715.813915][ T253] [ 4715.815635][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4715.815635][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4715.815635][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4715.815635][ T253] ipv6_find_idev+0x102/0x170 [ 4715.815635][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4715.815635][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4715.815635][ T253] netlink_rcv_skb+0x130/0x360 [ 4715.815635][ T253] netlink_unicast+0x449/0x710 [ 4715.815635][ T253] netlink_sendmsg+0x723/0xbe0 [ 4715.815635][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4715.815635][ T253] ___sys_sendmsg+0xee/0x170 [ 4715.815635][ T253] __sys_sendmsg+0xcd/0x170 [ 4715.815635][ T253] do_syscall_64+0xc6/0x1e0 [ 4715.815635][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4715.815635][ T253] [ 4726.058276][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4726.058759][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4726.058759][ T253] dst_init+0x84/0x4a0 [ 4726.058759][ T253] dst_alloc+0x97/0x150 [ 4726.058759][ T253] ip6_dst_alloc+0x23/0x90 [ 4726.058759][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4726.058759][ T253] ip6_pol_route+0x56f/0x840 [ 4726.058759][ T253] fib6_rule_lookup+0x334/0x630 [ 4726.058759][ T253] ip6_route_output_flags+0x259/0x480 [ 4726.058759][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4726.058759][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4726.058759][ T253] netlink_rcv_skb+0x130/0x360 [ 4726.058759][ T253] netlink_unicast+0x449/0x710 [ 4726.058759][ T253] netlink_sendmsg+0x723/0xbe0 [ 4726.058759][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4726.058759][ T253] ___sys_sendmsg+0xee/0x170 [ 4726.058759][ T253] __sys_sendmsg+0xcd/0x170 [ 4726.058759][ T253] do_syscall_64+0xc6/0x1e0 [ 4726.058759][ T253] [ 4726.061475][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4726.061475][ T253] netdev_get_by_index+0x5e/0x80 [ 4726.061475][ T253] fib6_nh_init+0x3d8/0x1580 [ 4726.061475][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4726.061475][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4726.061475][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4726.061475][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4726.061475][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4726.061475][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4726.061475][ T253] addrconf_dad_begin+0x310/0x670 [ 4726.061475][ T253] addrconf_dad_work+0x10b/0xab0 [ 4726.061475][ T253] process_one_work+0x84d/0x18a0 [ 4726.061475][ T253] worker_thread+0x587/0xd30 [ 4726.061475][ T253] kthread+0x28a/0x350 [ 4726.061475][ T253] ret_from_fork+0x31/0x70 [ 4726.061475][ T253] ret_from_fork_asm+0x1a/0x30 [ 4726.061475][ T253] [ 4726.063616][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4726.063616][ T253] netdev_get_by_index+0x5e/0x80 [ 4726.063616][ T253] fib6_nh_init+0x3d8/0x1580 [ 4726.063616][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4726.063616][ T253] ip6_route_add+0x1c/0x140 [ 4726.063616][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4726.063616][ T253] inet6_addr_add+0x4f8/0xa40 [ 4726.063616][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4726.063616][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4726.063616][ T253] netlink_rcv_skb+0x130/0x360 [ 4726.063616][ T253] netlink_unicast+0x449/0x710 [ 4726.063616][ T253] netlink_sendmsg+0x723/0xbe0 [ 4726.063616][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4726.063616][ T253] ___sys_sendmsg+0xee/0x170 [ 4726.063616][ T253] __sys_sendmsg+0xcd/0x170 [ 4726.063616][ T253] do_syscall_64+0xc6/0x1e0 [ 4726.063616][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4726.063616][ T253] [ 4726.065851][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4726.065851][ T253] netdev_get_by_index+0x5e/0x80 [ 4726.065851][ T253] fib6_nh_init+0x3d8/0x1580 [ 4726.065851][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4726.065851][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4726.065851][ T253] ipv6_add_addr+0x411/0x2000 [ 4726.065851][ T253] inet6_addr_add+0x30e/0xa40 [ 4726.065851][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4726.065851][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4726.065851][ T253] netlink_rcv_skb+0x130/0x360 [ 4726.065851][ T253] netlink_unicast+0x449/0x710 [ 4726.065851][ T253] netlink_sendmsg+0x723/0xbe0 [ 4726.065851][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4726.065851][ T253] ___sys_sendmsg+0xee/0x170 [ 4726.065851][ T253] __sys_sendmsg+0xcd/0x170 [ 4726.065851][ T253] do_syscall_64+0xc6/0x1e0 [ 4726.065851][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4726.065851][ T253] [ 4726.068113][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4726.068113][ T253] netdev_get_by_index+0x5e/0x80 [ 4726.068113][ T253] fib6_nh_init+0x3d8/0x1580 [ 4726.068113][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4726.068113][ T253] ip6_route_add+0x1c/0x140 [ 4726.068113][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4726.068113][ T253] addrconf_add_dev+0xe2/0x170 [ 4726.068113][ T253] inet6_addr_add+0x12f/0xa40 [ 4726.068113][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4726.068113][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4726.068113][ T253] netlink_rcv_skb+0x130/0x360 [ 4726.068113][ T253] netlink_unicast+0x449/0x710 [ 4726.068113][ T253] netlink_sendmsg+0x723/0xbe0 [ 4726.068113][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4726.068113][ T253] ___sys_sendmsg+0xee/0x170 [ 4726.068113][ T253] __sys_sendmsg+0xcd/0x170 [ 4726.068113][ T253] do_syscall_64+0xc6/0x1e0 [ 4726.068113][ T253] [ 4726.070306][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4726.070306][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4726.070306][ T253] ipv6_find_idev+0x102/0x170 [ 4726.070306][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4726.070306][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4726.070306][ T253] netlink_rcv_skb+0x130/0x360 [ 4726.070306][ T253] netlink_unicast+0x449/0x710 [ 4726.070306][ T253] netlink_sendmsg+0x723/0xbe0 [ 4726.070306][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4726.070306][ T253] ___sys_sendmsg+0xee/0x170 [ 4726.070306][ T253] __sys_sendmsg+0xcd/0x170 [ 4726.070306][ T253] do_syscall_64+0xc6/0x1e0 [ 4726.070306][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4726.070306][ T253] [ 4726.072026][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4726.072026][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4726.072026][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4726.072026][ T253] ipv6_find_idev+0x102/0x170 [ 4726.072026][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4726.072026][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4726.072026][ T253] netlink_rcv_skb+0x130/0x360 [ 4726.072026][ T253] netlink_unicast+0x449/0x710 [ 4726.072026][ T253] netlink_sendmsg+0x723/0xbe0 [ 4726.072026][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4726.072026][ T253] ___sys_sendmsg+0xee/0x170 [ 4726.072026][ T253] __sys_sendmsg+0xcd/0x170 [ 4726.072026][ T253] do_syscall_64+0xc6/0x1e0 [ 4726.072026][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4726.072026][ T253] [ 4736.130334][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4736.130811][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4736.130811][ T253] dst_init+0x84/0x4a0 [ 4736.130811][ T253] dst_alloc+0x97/0x150 [ 4736.130811][ T253] ip6_dst_alloc+0x23/0x90 [ 4736.130811][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4736.130811][ T253] ip6_pol_route+0x56f/0x840 [ 4736.130811][ T253] fib6_rule_lookup+0x334/0x630 [ 4736.130811][ T253] ip6_route_output_flags+0x259/0x480 [ 4736.130811][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4736.130811][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4736.130811][ T253] netlink_rcv_skb+0x130/0x360 [ 4736.130811][ T253] netlink_unicast+0x449/0x710 [ 4736.130811][ T253] netlink_sendmsg+0x723/0xbe0 [ 4736.130811][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4736.130811][ T253] ___sys_sendmsg+0xee/0x170 [ 4736.130811][ T253] __sys_sendmsg+0xcd/0x170 [ 4736.130811][ T253] do_syscall_64+0xc6/0x1e0 [ 4736.130811][ T253] [ 4736.132999][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4736.132999][ T253] netdev_get_by_index+0x5e/0x80 [ 4736.132999][ T253] fib6_nh_init+0x3d8/0x1580 [ 4736.132999][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4736.132999][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4736.132999][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4736.132999][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4736.132999][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4736.132999][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4736.132999][ T253] addrconf_dad_begin+0x310/0x670 [ 4736.132999][ T253] addrconf_dad_work+0x10b/0xab0 [ 4736.132999][ T253] process_one_work+0x84d/0x18a0 [ 4736.132999][ T253] worker_thread+0x587/0xd30 [ 4736.132999][ T253] kthread+0x28a/0x350 [ 4736.132999][ T253] ret_from_fork+0x31/0x70 [ 4736.132999][ T253] ret_from_fork_asm+0x1a/0x30 [ 4736.132999][ T253] [ 4736.135140][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4736.135140][ T253] netdev_get_by_index+0x5e/0x80 [ 4736.135140][ T253] fib6_nh_init+0x3d8/0x1580 [ 4736.135140][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4736.135140][ T253] ip6_route_add+0x1c/0x140 [ 4736.135140][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4736.135140][ T253] inet6_addr_add+0x4f8/0xa40 [ 4736.135140][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4736.135140][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4736.135140][ T253] netlink_rcv_skb+0x130/0x360 [ 4736.135140][ T253] netlink_unicast+0x449/0x710 [ 4736.135140][ T253] netlink_sendmsg+0x723/0xbe0 [ 4736.135140][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4736.135140][ T253] ___sys_sendmsg+0xee/0x170 [ 4736.135140][ T253] __sys_sendmsg+0xcd/0x170 [ 4736.135140][ T253] do_syscall_64+0xc6/0x1e0 [ 4736.135140][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4736.135140][ T253] [ 4736.137387][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4736.137387][ T253] netdev_get_by_index+0x5e/0x80 [ 4736.137387][ T253] fib6_nh_init+0x3d8/0x1580 [ 4736.137387][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4736.137387][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4736.137387][ T253] ipv6_add_addr+0x411/0x2000 [ 4736.137387][ T253] inet6_addr_add+0x30e/0xa40 [ 4736.137387][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4736.137387][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4736.137387][ T253] netlink_rcv_skb+0x130/0x360 [ 4736.137387][ T253] netlink_unicast+0x449/0x710 [ 4736.137387][ T253] netlink_sendmsg+0x723/0xbe0 [ 4736.137387][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4736.137387][ T253] ___sys_sendmsg+0xee/0x170 [ 4736.137387][ T253] __sys_sendmsg+0xcd/0x170 [ 4736.137387][ T253] do_syscall_64+0xc6/0x1e0 [ 4736.137387][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4736.137387][ T253] [ 4736.139632][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4736.139632][ T253] netdev_get_by_index+0x5e/0x80 [ 4736.139632][ T253] fib6_nh_init+0x3d8/0x1580 [ 4736.139632][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4736.139632][ T253] ip6_route_add+0x1c/0x140 [ 4736.139632][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4736.139632][ T253] addrconf_add_dev+0xe2/0x170 [ 4736.139632][ T253] inet6_addr_add+0x12f/0xa40 [ 4736.139632][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4736.139632][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4736.139632][ T253] netlink_rcv_skb+0x130/0x360 [ 4736.139632][ T253] netlink_unicast+0x449/0x710 [ 4736.139632][ T253] netlink_sendmsg+0x723/0xbe0 [ 4736.139632][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4736.139632][ T253] ___sys_sendmsg+0xee/0x170 [ 4736.139632][ T253] __sys_sendmsg+0xcd/0x170 [ 4736.139632][ T253] do_syscall_64+0xc6/0x1e0 [ 4736.139632][ T253] [ 4736.141840][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4736.141840][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4736.141840][ T253] ipv6_find_idev+0x102/0x170 [ 4736.141840][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4736.141840][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4736.141840][ T253] netlink_rcv_skb+0x130/0x360 [ 4736.141840][ T253] netlink_unicast+0x449/0x710 [ 4736.141840][ T253] netlink_sendmsg+0x723/0xbe0 [ 4736.141840][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4736.141840][ T253] ___sys_sendmsg+0xee/0x170 [ 4736.141840][ T253] __sys_sendmsg+0xcd/0x170 [ 4736.141840][ T253] do_syscall_64+0xc6/0x1e0 [ 4736.141840][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4736.141840][ T253] [ 4736.143568][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4736.143568][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4736.143568][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4736.143568][ T253] ipv6_find_idev+0x102/0x170 [ 4736.143568][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4736.143568][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4736.143568][ T253] netlink_rcv_skb+0x130/0x360 [ 4736.143568][ T253] netlink_unicast+0x449/0x710 [ 4736.143568][ T253] netlink_sendmsg+0x723/0xbe0 [ 4736.143568][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4736.143568][ T253] ___sys_sendmsg+0xee/0x170 [ 4736.143568][ T253] __sys_sendmsg+0xcd/0x170 [ 4736.143568][ T253] do_syscall_64+0xc6/0x1e0 [ 4736.143568][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4736.143568][ T253] [ 4746.386330][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4746.386805][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4746.386805][ T253] dst_init+0x84/0x4a0 [ 4746.386805][ T253] dst_alloc+0x97/0x150 [ 4746.386805][ T253] ip6_dst_alloc+0x23/0x90 [ 4746.386805][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4746.386805][ T253] ip6_pol_route+0x56f/0x840 [ 4746.386805][ T253] fib6_rule_lookup+0x334/0x630 [ 4746.386805][ T253] ip6_route_output_flags+0x259/0x480 [ 4746.386805][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4746.386805][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4746.386805][ T253] netlink_rcv_skb+0x130/0x360 [ 4746.386805][ T253] netlink_unicast+0x449/0x710 [ 4746.386805][ T253] netlink_sendmsg+0x723/0xbe0 [ 4746.386805][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4746.386805][ T253] ___sys_sendmsg+0xee/0x170 [ 4746.386805][ T253] __sys_sendmsg+0xcd/0x170 [ 4746.386805][ T253] do_syscall_64+0xc6/0x1e0 [ 4746.386805][ T253] [ 4746.389015][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4746.389015][ T253] netdev_get_by_index+0x5e/0x80 [ 4746.389015][ T253] fib6_nh_init+0x3d8/0x1580 [ 4746.389015][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4746.389015][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4746.389015][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4746.389015][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4746.389015][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4746.389015][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4746.389015][ T253] addrconf_dad_begin+0x310/0x670 [ 4746.389015][ T253] addrconf_dad_work+0x10b/0xab0 [ 4746.389015][ T253] process_one_work+0x84d/0x18a0 [ 4746.389015][ T253] worker_thread+0x587/0xd30 [ 4746.389015][ T253] kthread+0x28a/0x350 [ 4746.389015][ T253] ret_from_fork+0x31/0x70 [ 4746.389015][ T253] ret_from_fork_asm+0x1a/0x30 [ 4746.389015][ T253] [ 4746.391154][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4746.391154][ T253] netdev_get_by_index+0x5e/0x80 [ 4746.391154][ T253] fib6_nh_init+0x3d8/0x1580 [ 4746.391154][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4746.391154][ T253] ip6_route_add+0x1c/0x140 [ 4746.391154][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4746.391154][ T253] inet6_addr_add+0x4f8/0xa40 [ 4746.391154][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4746.391154][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4746.391154][ T253] netlink_rcv_skb+0x130/0x360 [ 4746.391154][ T253] netlink_unicast+0x449/0x710 [ 4746.391154][ T253] netlink_sendmsg+0x723/0xbe0 [ 4746.391154][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4746.391154][ T253] ___sys_sendmsg+0xee/0x170 [ 4746.391154][ T253] __sys_sendmsg+0xcd/0x170 [ 4746.391154][ T253] do_syscall_64+0xc6/0x1e0 [ 4746.391154][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4746.391154][ T253] [ 4746.393404][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4746.393404][ T253] netdev_get_by_index+0x5e/0x80 [ 4746.393404][ T253] fib6_nh_init+0x3d8/0x1580 [ 4746.393404][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4746.393404][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4746.393404][ T253] ipv6_add_addr+0x411/0x2000 [ 4746.393404][ T253] inet6_addr_add+0x30e/0xa40 [ 4746.393404][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4746.393404][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4746.393404][ T253] netlink_rcv_skb+0x130/0x360 [ 4746.393404][ T253] netlink_unicast+0x449/0x710 [ 4746.393404][ T253] netlink_sendmsg+0x723/0xbe0 [ 4746.393404][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4746.393404][ T253] ___sys_sendmsg+0xee/0x170 [ 4746.393404][ T253] __sys_sendmsg+0xcd/0x170 [ 4746.393404][ T253] do_syscall_64+0xc6/0x1e0 [ 4746.393404][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4746.393404][ T253] [ 4746.395642][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4746.395642][ T253] netdev_get_by_index+0x5e/0x80 [ 4746.395642][ T253] fib6_nh_init+0x3d8/0x1580 [ 4746.395642][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4746.395642][ T253] ip6_route_add+0x1c/0x140 [ 4746.395642][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4746.395642][ T253] addrconf_add_dev+0xe2/0x170 [ 4746.395642][ T253] inet6_addr_add+0x12f/0xa40 [ 4746.395642][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4746.395642][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4746.395642][ T253] netlink_rcv_skb+0x130/0x360 [ 4746.395642][ T253] netlink_unicast+0x449/0x710 [ 4746.395642][ T253] netlink_sendmsg+0x723/0xbe0 [ 4746.395642][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4746.395642][ T253] ___sys_sendmsg+0xee/0x170 [ 4746.395642][ T253] __sys_sendmsg+0xcd/0x170 [ 4746.395642][ T253] do_syscall_64+0xc6/0x1e0 [ 4746.395642][ T253] [ 4746.397852][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4746.397852][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4746.397852][ T253] ipv6_find_idev+0x102/0x170 [ 4746.397852][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4746.397852][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4746.397852][ T253] netlink_rcv_skb+0x130/0x360 [ 4746.397852][ T253] netlink_unicast+0x449/0x710 [ 4746.397852][ T253] netlink_sendmsg+0x723/0xbe0 [ 4746.397852][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4746.397852][ T253] ___sys_sendmsg+0xee/0x170 [ 4746.397852][ T253] __sys_sendmsg+0xcd/0x170 [ 4746.397852][ T253] do_syscall_64+0xc6/0x1e0 [ 4746.397852][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4746.397852][ T253] [ 4746.399574][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4746.399574][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4746.399574][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4746.399574][ T253] ipv6_find_idev+0x102/0x170 [ 4746.399574][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4746.399574][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4746.399574][ T253] netlink_rcv_skb+0x130/0x360 [ 4746.399574][ T253] netlink_unicast+0x449/0x710 [ 4746.399574][ T253] netlink_sendmsg+0x723/0xbe0 [ 4746.399574][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4746.399574][ T253] ___sys_sendmsg+0xee/0x170 [ 4746.399574][ T253] __sys_sendmsg+0xcd/0x170 [ 4746.399574][ T253] do_syscall_64+0xc6/0x1e0 [ 4746.399574][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4746.399574][ T253] [ 4756.522299][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4756.522708][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4756.522708][ T253] dst_init+0x84/0x4a0 [ 4756.522708][ T253] dst_alloc+0x97/0x150 [ 4756.522708][ T253] ip6_dst_alloc+0x23/0x90 [ 4756.522708][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4756.522708][ T253] ip6_pol_route+0x56f/0x840 [ 4756.522708][ T253] fib6_rule_lookup+0x334/0x630 [ 4756.522708][ T253] ip6_route_output_flags+0x259/0x480 [ 4756.522708][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4756.522708][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4756.522708][ T253] netlink_rcv_skb+0x130/0x360 [ 4756.522708][ T253] netlink_unicast+0x449/0x710 [ 4756.522708][ T253] netlink_sendmsg+0x723/0xbe0 [ 4756.522708][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4756.522708][ T253] ___sys_sendmsg+0xee/0x170 [ 4756.522708][ T253] __sys_sendmsg+0xcd/0x170 [ 4756.522708][ T253] do_syscall_64+0xc6/0x1e0 [ 4756.522708][ T253] [ 4756.525008][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4756.525008][ T253] netdev_get_by_index+0x5e/0x80 [ 4756.525008][ T253] fib6_nh_init+0x3d8/0x1580 [ 4756.525008][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4756.525008][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4756.525008][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4756.525008][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4756.525008][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4756.525008][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4756.525008][ T253] addrconf_dad_begin+0x310/0x670 [ 4756.525008][ T253] addrconf_dad_work+0x10b/0xab0 [ 4756.525008][ T253] process_one_work+0x84d/0x18a0 [ 4756.525008][ T253] worker_thread+0x587/0xd30 [ 4756.525008][ T253] kthread+0x28a/0x350 [ 4756.525008][ T253] ret_from_fork+0x31/0x70 [ 4756.525008][ T253] ret_from_fork_asm+0x1a/0x30 [ 4756.525008][ T253] [ 4756.527160][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4756.527160][ T253] netdev_get_by_index+0x5e/0x80 [ 4756.527160][ T253] fib6_nh_init+0x3d8/0x1580 [ 4756.527160][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4756.527160][ T253] ip6_route_add+0x1c/0x140 [ 4756.527160][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4756.527160][ T253] inet6_addr_add+0x4f8/0xa40 [ 4756.527160][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4756.527160][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4756.527160][ T253] netlink_rcv_skb+0x130/0x360 [ 4756.527160][ T253] netlink_unicast+0x449/0x710 [ 4756.527160][ T253] netlink_sendmsg+0x723/0xbe0 [ 4756.527160][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4756.527160][ T253] ___sys_sendmsg+0xee/0x170 [ 4756.527160][ T253] __sys_sendmsg+0xcd/0x170 [ 4756.527160][ T253] do_syscall_64+0xc6/0x1e0 [ 4756.527160][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4756.527160][ T253] [ 4756.529411][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4756.529411][ T253] netdev_get_by_index+0x5e/0x80 [ 4756.529411][ T253] fib6_nh_init+0x3d8/0x1580 [ 4756.529411][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4756.529411][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4756.529411][ T253] ipv6_add_addr+0x411/0x2000 [ 4756.529411][ T253] inet6_addr_add+0x30e/0xa40 [ 4756.529411][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4756.529411][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4756.529411][ T253] netlink_rcv_skb+0x130/0x360 [ 4756.529411][ T253] netlink_unicast+0x449/0x710 [ 4756.529411][ T253] netlink_sendmsg+0x723/0xbe0 [ 4756.529411][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4756.529411][ T253] ___sys_sendmsg+0xee/0x170 [ 4756.529411][ T253] __sys_sendmsg+0xcd/0x170 [ 4756.529411][ T253] do_syscall_64+0xc6/0x1e0 [ 4756.529411][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4756.529411][ T253] [ 4756.531656][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4756.531656][ T253] netdev_get_by_index+0x5e/0x80 [ 4756.531656][ T253] fib6_nh_init+0x3d8/0x1580 [ 4756.531656][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4756.531656][ T253] ip6_route_add+0x1c/0x140 [ 4756.531656][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4756.531656][ T253] addrconf_add_dev+0xe2/0x170 [ 4756.531656][ T253] inet6_addr_add+0x12f/0xa40 [ 4756.531656][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4756.531656][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4756.531656][ T253] netlink_rcv_skb+0x130/0x360 [ 4756.531656][ T253] netlink_unicast+0x449/0x710 [ 4756.531656][ T253] netlink_sendmsg+0x723/0xbe0 [ 4756.531656][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4756.531656][ T253] ___sys_sendmsg+0xee/0x170 [ 4756.531656][ T253] __sys_sendmsg+0xcd/0x170 [ 4756.531656][ T253] do_syscall_64+0xc6/0x1e0 [ 4756.531656][ T253] [ 4756.533883][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4756.533883][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4756.533883][ T253] ipv6_find_idev+0x102/0x170 [ 4756.533883][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4756.533883][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4756.533883][ T253] netlink_rcv_skb+0x130/0x360 [ 4756.533883][ T253] netlink_unicast+0x449/0x710 [ 4756.533883][ T253] netlink_sendmsg+0x723/0xbe0 [ 4756.533883][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4756.533883][ T253] ___sys_sendmsg+0xee/0x170 [ 4756.533883][ T253] __sys_sendmsg+0xcd/0x170 [ 4756.533883][ T253] do_syscall_64+0xc6/0x1e0 [ 4756.533883][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4756.533883][ T253] [ 4756.535620][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4756.535620][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4756.535620][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4756.535620][ T253] ipv6_find_idev+0x102/0x170 [ 4756.535620][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4756.535620][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4756.535620][ T253] netlink_rcv_skb+0x130/0x360 [ 4756.535620][ T253] netlink_unicast+0x449/0x710 [ 4756.535620][ T253] netlink_sendmsg+0x723/0xbe0 [ 4756.535620][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4756.535620][ T253] ___sys_sendmsg+0xee/0x170 [ 4756.535620][ T253] __sys_sendmsg+0xcd/0x170 [ 4756.535620][ T253] do_syscall_64+0xc6/0x1e0 [ 4756.535620][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4756.535620][ T253] [ 4766.642307][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4766.642799][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4766.642799][ T253] dst_init+0x84/0x4a0 [ 4766.642799][ T253] dst_alloc+0x97/0x150 [ 4766.642799][ T253] ip6_dst_alloc+0x23/0x90 [ 4766.642799][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4766.642799][ T253] ip6_pol_route+0x56f/0x840 [ 4766.642799][ T253] fib6_rule_lookup+0x334/0x630 [ 4766.642799][ T253] ip6_route_output_flags+0x259/0x480 [ 4766.642799][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4766.642799][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4766.642799][ T253] netlink_rcv_skb+0x130/0x360 [ 4766.642799][ T253] netlink_unicast+0x449/0x710 [ 4766.642799][ T253] netlink_sendmsg+0x723/0xbe0 [ 4766.642799][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4766.642799][ T253] ___sys_sendmsg+0xee/0x170 [ 4766.642799][ T253] __sys_sendmsg+0xcd/0x170 [ 4766.642799][ T253] do_syscall_64+0xc6/0x1e0 [ 4766.642799][ T253] [ 4766.645457][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4766.645457][ T253] netdev_get_by_index+0x5e/0x80 [ 4766.645457][ T253] fib6_nh_init+0x3d8/0x1580 [ 4766.645457][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4766.645457][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4766.645457][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4766.645457][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4766.645457][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4766.645457][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4766.645457][ T253] addrconf_dad_begin+0x310/0x670 [ 4766.645457][ T253] addrconf_dad_work+0x10b/0xab0 [ 4766.645457][ T253] process_one_work+0x84d/0x18a0 [ 4766.645457][ T253] worker_thread+0x587/0xd30 [ 4766.645457][ T253] kthread+0x28a/0x350 [ 4766.645457][ T253] ret_from_fork+0x31/0x70 [ 4766.645457][ T253] ret_from_fork_asm+0x1a/0x30 [ 4766.645457][ T253] [ 4766.648066][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4766.648066][ T253] netdev_get_by_index+0x5e/0x80 [ 4766.648066][ T253] fib6_nh_init+0x3d8/0x1580 [ 4766.648066][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4766.648066][ T253] ip6_route_add+0x1c/0x140 [ 4766.648066][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4766.648066][ T253] inet6_addr_add+0x4f8/0xa40 [ 4766.648066][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4766.648066][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4766.648066][ T253] netlink_rcv_skb+0x130/0x360 [ 4766.648066][ T253] netlink_unicast+0x449/0x710 [ 4766.648066][ T253] netlink_sendmsg+0x723/0xbe0 [ 4766.648066][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4766.648066][ T253] ___sys_sendmsg+0xee/0x170 [ 4766.648066][ T253] __sys_sendmsg+0xcd/0x170 [ 4766.648066][ T253] do_syscall_64+0xc6/0x1e0 [ 4766.648066][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4766.648066][ T253] [ 4766.650779][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4766.650779][ T253] netdev_get_by_index+0x5e/0x80 [ 4766.650779][ T253] fib6_nh_init+0x3d8/0x1580 [ 4766.650779][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4766.650779][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4766.650779][ T253] ipv6_add_addr+0x411/0x2000 [ 4766.650779][ T253] inet6_addr_add+0x30e/0xa40 [ 4766.650779][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4766.650779][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4766.650779][ T253] netlink_rcv_skb+0x130/0x360 [ 4766.650779][ T253] netlink_unicast+0x449/0x710 [ 4766.650779][ T253] netlink_sendmsg+0x723/0xbe0 [ 4766.650779][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4766.650779][ T253] ___sys_sendmsg+0xee/0x170 [ 4766.650779][ T253] __sys_sendmsg+0xcd/0x170 [ 4766.650779][ T253] do_syscall_64+0xc6/0x1e0 [ 4766.650779][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4766.650779][ T253] [ 4766.653493][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4766.653493][ T253] netdev_get_by_index+0x5e/0x80 [ 4766.653493][ T253] fib6_nh_init+0x3d8/0x1580 [ 4766.653493][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4766.653493][ T253] ip6_route_add+0x1c/0x140 [ 4766.653493][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4766.653493][ T253] addrconf_add_dev+0xe2/0x170 [ 4766.653493][ T253] inet6_addr_add+0x12f/0xa40 [ 4766.653493][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4766.653493][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4766.653493][ T253] netlink_rcv_skb+0x130/0x360 [ 4766.653493][ T253] netlink_unicast+0x449/0x710 [ 4766.653493][ T253] netlink_sendmsg+0x723/0xbe0 [ 4766.653493][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4766.653493][ T253] ___sys_sendmsg+0xee/0x170 [ 4766.653493][ T253] __sys_sendmsg+0xcd/0x170 [ 4766.653493][ T253] do_syscall_64+0xc6/0x1e0 [ 4766.653493][ T253] [ 4766.656161][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4766.656161][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4766.656161][ T253] ipv6_find_idev+0x102/0x170 [ 4766.656161][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4766.656161][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4766.656161][ T253] netlink_rcv_skb+0x130/0x360 [ 4766.656161][ T253] netlink_unicast+0x449/0x710 [ 4766.656161][ T253] netlink_sendmsg+0x723/0xbe0 [ 4766.656161][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4766.656161][ T253] ___sys_sendmsg+0xee/0x170 [ 4766.656161][ T253] __sys_sendmsg+0xcd/0x170 [ 4766.656161][ T253] do_syscall_64+0xc6/0x1e0 [ 4766.656161][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4766.656161][ T253] [ 4766.658267][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4766.658267][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4766.658267][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4766.658267][ T253] ipv6_find_idev+0x102/0x170 [ 4766.658267][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4766.658267][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4766.658267][ T253] netlink_rcv_skb+0x130/0x360 [ 4766.658267][ T253] netlink_unicast+0x449/0x710 [ 4766.658267][ T253] netlink_sendmsg+0x723/0xbe0 [ 4766.658267][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4766.658267][ T253] ___sys_sendmsg+0xee/0x170 [ 4766.658267][ T253] __sys_sendmsg+0xcd/0x170 [ 4766.658267][ T253] do_syscall_64+0xc6/0x1e0 [ 4766.658267][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4766.658267][ T253] [ 4776.898313][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4776.898813][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4776.898813][ T253] dst_init+0x84/0x4a0 [ 4776.898813][ T253] dst_alloc+0x97/0x150 [ 4776.898813][ T253] ip6_dst_alloc+0x23/0x90 [ 4776.898813][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4776.898813][ T253] ip6_pol_route+0x56f/0x840 [ 4776.898813][ T253] fib6_rule_lookup+0x334/0x630 [ 4776.898813][ T253] ip6_route_output_flags+0x259/0x480 [ 4776.898813][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4776.898813][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4776.898813][ T253] netlink_rcv_skb+0x130/0x360 [ 4776.898813][ T253] netlink_unicast+0x449/0x710 [ 4776.898813][ T253] netlink_sendmsg+0x723/0xbe0 [ 4776.898813][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4776.898813][ T253] ___sys_sendmsg+0xee/0x170 [ 4776.898813][ T253] __sys_sendmsg+0xcd/0x170 [ 4776.898813][ T253] do_syscall_64+0xc6/0x1e0 [ 4776.898813][ T253] [ 4776.901468][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4776.901468][ T253] netdev_get_by_index+0x5e/0x80 [ 4776.901468][ T253] fib6_nh_init+0x3d8/0x1580 [ 4776.901468][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4776.901468][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4776.901468][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4776.901468][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4776.901468][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4776.901468][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4776.901468][ T253] addrconf_dad_begin+0x310/0x670 [ 4776.901468][ T253] addrconf_dad_work+0x10b/0xab0 [ 4776.901468][ T253] process_one_work+0x84d/0x18a0 [ 4776.901468][ T253] worker_thread+0x587/0xd30 [ 4776.901468][ T253] kthread+0x28a/0x350 [ 4776.901468][ T253] ret_from_fork+0x31/0x70 [ 4776.901468][ T253] ret_from_fork_asm+0x1a/0x30 [ 4776.901468][ T253] [ 4776.904072][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4776.904072][ T253] netdev_get_by_index+0x5e/0x80 [ 4776.904072][ T253] fib6_nh_init+0x3d8/0x1580 [ 4776.904072][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4776.904072][ T253] ip6_route_add+0x1c/0x140 [ 4776.904072][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4776.904072][ T253] inet6_addr_add+0x4f8/0xa40 [ 4776.904072][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4776.904072][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4776.904072][ T253] netlink_rcv_skb+0x130/0x360 [ 4776.904072][ T253] netlink_unicast+0x449/0x710 [ 4776.904072][ T253] netlink_sendmsg+0x723/0xbe0 [ 4776.904072][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4776.904072][ T253] ___sys_sendmsg+0xee/0x170 [ 4776.904072][ T253] __sys_sendmsg+0xcd/0x170 [ 4776.904072][ T253] do_syscall_64+0xc6/0x1e0 [ 4776.904072][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4776.904072][ T253] [ 4776.906783][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4776.906783][ T253] netdev_get_by_index+0x5e/0x80 [ 4776.906783][ T253] fib6_nh_init+0x3d8/0x1580 [ 4776.906783][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4776.906783][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4776.906783][ T253] ipv6_add_addr+0x411/0x2000 [ 4776.906783][ T253] inet6_addr_add+0x30e/0xa40 [ 4776.906783][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4776.906783][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4776.906783][ T253] netlink_rcv_skb+0x130/0x360 [ 4776.906783][ T253] netlink_unicast+0x449/0x710 [ 4776.906783][ T253] netlink_sendmsg+0x723/0xbe0 [ 4776.906783][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4776.906783][ T253] ___sys_sendmsg+0xee/0x170 [ 4776.906783][ T253] __sys_sendmsg+0xcd/0x170 [ 4776.906783][ T253] do_syscall_64+0xc6/0x1e0 [ 4776.906783][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4776.906783][ T253] [ 4776.909514][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4776.909514][ T253] netdev_get_by_index+0x5e/0x80 [ 4776.909514][ T253] fib6_nh_init+0x3d8/0x1580 [ 4776.909514][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4776.909514][ T253] ip6_route_add+0x1c/0x140 [ 4776.909514][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4776.909514][ T253] addrconf_add_dev+0xe2/0x170 [ 4776.909514][ T253] inet6_addr_add+0x12f/0xa40 [ 4776.909514][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4776.909514][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4776.909514][ T253] netlink_rcv_skb+0x130/0x360 [ 4776.909514][ T253] netlink_unicast+0x449/0x710 [ 4776.909514][ T253] netlink_sendmsg+0x723/0xbe0 [ 4776.909514][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4776.909514][ T253] ___sys_sendmsg+0xee/0x170 [ 4776.909514][ T253] __sys_sendmsg+0xcd/0x170 [ 4776.909514][ T253] do_syscall_64+0xc6/0x1e0 [ 4776.909514][ T253] [ 4776.912179][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4776.912179][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4776.912179][ T253] ipv6_find_idev+0x102/0x170 [ 4776.912179][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4776.912179][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4776.912179][ T253] netlink_rcv_skb+0x130/0x360 [ 4776.912179][ T253] netlink_unicast+0x449/0x710 [ 4776.912179][ T253] netlink_sendmsg+0x723/0xbe0 [ 4776.912179][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4776.912179][ T253] ___sys_sendmsg+0xee/0x170 [ 4776.912179][ T253] __sys_sendmsg+0xcd/0x170 [ 4776.912179][ T253] do_syscall_64+0xc6/0x1e0 [ 4776.912179][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4776.912179][ T253] [ 4776.914272][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4776.914272][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4776.914272][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4776.914272][ T253] ipv6_find_idev+0x102/0x170 [ 4776.914272][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4776.914272][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4776.914272][ T253] netlink_rcv_skb+0x130/0x360 [ 4776.914272][ T253] netlink_unicast+0x449/0x710 [ 4776.914272][ T253] netlink_sendmsg+0x723/0xbe0 [ 4776.914272][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4776.914272][ T253] ___sys_sendmsg+0xee/0x170 [ 4776.914272][ T253] __sys_sendmsg+0xcd/0x170 [ 4776.914272][ T253] do_syscall_64+0xc6/0x1e0 [ 4776.914272][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4776.914272][ T253] [ 4787.042318][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4787.042733][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4787.042733][ T253] dst_init+0x84/0x4a0 [ 4787.042733][ T253] dst_alloc+0x97/0x150 [ 4787.042733][ T253] ip6_dst_alloc+0x23/0x90 [ 4787.042733][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4787.042733][ T253] ip6_pol_route+0x56f/0x840 [ 4787.042733][ T253] fib6_rule_lookup+0x334/0x630 [ 4787.042733][ T253] ip6_route_output_flags+0x259/0x480 [ 4787.042733][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4787.042733][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4787.042733][ T253] netlink_rcv_skb+0x130/0x360 [ 4787.042733][ T253] netlink_unicast+0x449/0x710 [ 4787.042733][ T253] netlink_sendmsg+0x723/0xbe0 [ 4787.042733][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4787.042733][ T253] ___sys_sendmsg+0xee/0x170 [ 4787.042733][ T253] __sys_sendmsg+0xcd/0x170 [ 4787.042733][ T253] do_syscall_64+0xc6/0x1e0 [ 4787.042733][ T253] [ 4787.044976][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4787.044976][ T253] netdev_get_by_index+0x5e/0x80 [ 4787.044976][ T253] fib6_nh_init+0x3d8/0x1580 [ 4787.044976][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4787.044976][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4787.044976][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4787.044976][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4787.044976][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4787.044976][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4787.044976][ T253] addrconf_dad_begin+0x310/0x670 [ 4787.044976][ T253] addrconf_dad_work+0x10b/0xab0 [ 4787.044976][ T253] process_one_work+0x84d/0x18a0 [ 4787.044976][ T253] worker_thread+0x587/0xd30 [ 4787.044976][ T253] kthread+0x28a/0x350 [ 4787.044976][ T253] ret_from_fork+0x31/0x70 [ 4787.044976][ T253] ret_from_fork_asm+0x1a/0x30 [ 4787.044976][ T253] [ 4787.047115][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4787.047115][ T253] netdev_get_by_index+0x5e/0x80 [ 4787.047115][ T253] fib6_nh_init+0x3d8/0x1580 [ 4787.047115][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4787.047115][ T253] ip6_route_add+0x1c/0x140 [ 4787.047115][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4787.047115][ T253] inet6_addr_add+0x4f8/0xa40 [ 4787.047115][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4787.047115][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4787.047115][ T253] netlink_rcv_skb+0x130/0x360 [ 4787.047115][ T253] netlink_unicast+0x449/0x710 [ 4787.047115][ T253] netlink_sendmsg+0x723/0xbe0 [ 4787.047115][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4787.047115][ T253] ___sys_sendmsg+0xee/0x170 [ 4787.047115][ T253] __sys_sendmsg+0xcd/0x170 [ 4787.047115][ T253] do_syscall_64+0xc6/0x1e0 [ 4787.047115][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4787.047115][ T253] [ 4787.049361][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4787.049361][ T253] netdev_get_by_index+0x5e/0x80 [ 4787.049361][ T253] fib6_nh_init+0x3d8/0x1580 [ 4787.049361][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4787.049361][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4787.049361][ T253] ipv6_add_addr+0x411/0x2000 [ 4787.049361][ T253] inet6_addr_add+0x30e/0xa40 [ 4787.049361][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4787.049361][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4787.049361][ T253] netlink_rcv_skb+0x130/0x360 [ 4787.049361][ T253] netlink_unicast+0x449/0x710 [ 4787.049361][ T253] netlink_sendmsg+0x723/0xbe0 [ 4787.049361][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4787.049361][ T253] ___sys_sendmsg+0xee/0x170 [ 4787.049361][ T253] __sys_sendmsg+0xcd/0x170 [ 4787.049361][ T253] do_syscall_64+0xc6/0x1e0 [ 4787.049361][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4787.049361][ T253] [ 4787.051602][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4787.051602][ T253] netdev_get_by_index+0x5e/0x80 [ 4787.051602][ T253] fib6_nh_init+0x3d8/0x1580 [ 4787.051602][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4787.051602][ T253] ip6_route_add+0x1c/0x140 [ 4787.051602][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4787.051602][ T253] addrconf_add_dev+0xe2/0x170 [ 4787.051602][ T253] inet6_addr_add+0x12f/0xa40 [ 4787.051602][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4787.051602][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4787.051602][ T253] netlink_rcv_skb+0x130/0x360 [ 4787.051602][ T253] netlink_unicast+0x449/0x710 [ 4787.051602][ T253] netlink_sendmsg+0x723/0xbe0 [ 4787.051602][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4787.051602][ T253] ___sys_sendmsg+0xee/0x170 [ 4787.051602][ T253] __sys_sendmsg+0xcd/0x170 [ 4787.051602][ T253] do_syscall_64+0xc6/0x1e0 [ 4787.051602][ T253] [ 4787.053797][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4787.053797][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4787.053797][ T253] ipv6_find_idev+0x102/0x170 [ 4787.053797][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4787.053797][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4787.053797][ T253] netlink_rcv_skb+0x130/0x360 [ 4787.053797][ T253] netlink_unicast+0x449/0x710 [ 4787.053797][ T253] netlink_sendmsg+0x723/0xbe0 [ 4787.053797][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4787.053797][ T253] ___sys_sendmsg+0xee/0x170 [ 4787.053797][ T253] __sys_sendmsg+0xcd/0x170 [ 4787.053797][ T253] do_syscall_64+0xc6/0x1e0 [ 4787.053797][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4787.053797][ T253] [ 4787.055518][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4787.055518][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4787.055518][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4787.055518][ T253] ipv6_find_idev+0x102/0x170 [ 4787.055518][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4787.055518][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4787.055518][ T253] netlink_rcv_skb+0x130/0x360 [ 4787.055518][ T253] netlink_unicast+0x449/0x710 [ 4787.055518][ T253] netlink_sendmsg+0x723/0xbe0 [ 4787.055518][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4787.055518][ T253] ___sys_sendmsg+0xee/0x170 [ 4787.055518][ T253] __sys_sendmsg+0xcd/0x170 [ 4787.055518][ T253] do_syscall_64+0xc6/0x1e0 [ 4787.055518][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4787.055518][ T253] [ 4797.298312][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4797.298803][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4797.298803][ T253] dst_init+0x84/0x4a0 [ 4797.298803][ T253] dst_alloc+0x97/0x150 [ 4797.298803][ T253] ip6_dst_alloc+0x23/0x90 [ 4797.298803][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4797.298803][ T253] ip6_pol_route+0x56f/0x840 [ 4797.298803][ T253] fib6_rule_lookup+0x334/0x630 [ 4797.298803][ T253] ip6_route_output_flags+0x259/0x480 [ 4797.298803][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4797.298803][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4797.298803][ T253] netlink_rcv_skb+0x130/0x360 [ 4797.298803][ T253] netlink_unicast+0x449/0x710 [ 4797.298803][ T253] netlink_sendmsg+0x723/0xbe0 [ 4797.298803][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4797.298803][ T253] ___sys_sendmsg+0xee/0x170 [ 4797.298803][ T253] __sys_sendmsg+0xcd/0x170 [ 4797.298803][ T253] do_syscall_64+0xc6/0x1e0 [ 4797.298803][ T253] [ 4797.300991][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4797.300991][ T253] netdev_get_by_index+0x5e/0x80 [ 4797.300991][ T253] fib6_nh_init+0x3d8/0x1580 [ 4797.300991][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4797.300991][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4797.300991][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4797.300991][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4797.300991][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4797.300991][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4797.300991][ T253] addrconf_dad_begin+0x310/0x670 [ 4797.300991][ T253] addrconf_dad_work+0x10b/0xab0 [ 4797.300991][ T253] process_one_work+0x84d/0x18a0 [ 4797.300991][ T253] worker_thread+0x587/0xd30 [ 4797.300991][ T253] kthread+0x28a/0x350 [ 4797.300991][ T253] ret_from_fork+0x31/0x70 [ 4797.300991][ T253] ret_from_fork_asm+0x1a/0x30 [ 4797.300991][ T253] [ 4797.303128][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4797.303128][ T253] netdev_get_by_index+0x5e/0x80 [ 4797.303128][ T253] fib6_nh_init+0x3d8/0x1580 [ 4797.303128][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4797.303128][ T253] ip6_route_add+0x1c/0x140 [ 4797.303128][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4797.303128][ T253] inet6_addr_add+0x4f8/0xa40 [ 4797.303128][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4797.303128][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4797.303128][ T253] netlink_rcv_skb+0x130/0x360 [ 4797.303128][ T253] netlink_unicast+0x449/0x710 [ 4797.303128][ T253] netlink_sendmsg+0x723/0xbe0 [ 4797.303128][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4797.303128][ T253] ___sys_sendmsg+0xee/0x170 [ 4797.303128][ T253] __sys_sendmsg+0xcd/0x170 [ 4797.303128][ T253] do_syscall_64+0xc6/0x1e0 [ 4797.303128][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4797.303128][ T253] [ 4797.305371][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4797.305371][ T253] netdev_get_by_index+0x5e/0x80 [ 4797.305371][ T253] fib6_nh_init+0x3d8/0x1580 [ 4797.305371][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4797.305371][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4797.305371][ T253] ipv6_add_addr+0x411/0x2000 [ 4797.305371][ T253] inet6_addr_add+0x30e/0xa40 [ 4797.305371][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4797.305371][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4797.305371][ T253] netlink_rcv_skb+0x130/0x360 [ 4797.305371][ T253] netlink_unicast+0x449/0x710 [ 4797.305371][ T253] netlink_sendmsg+0x723/0xbe0 [ 4797.305371][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4797.305371][ T253] ___sys_sendmsg+0xee/0x170 [ 4797.305371][ T253] __sys_sendmsg+0xcd/0x170 [ 4797.305371][ T253] do_syscall_64+0xc6/0x1e0 [ 4797.305371][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4797.305371][ T253] [ 4797.307621][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4797.307621][ T253] netdev_get_by_index+0x5e/0x80 [ 4797.307621][ T253] fib6_nh_init+0x3d8/0x1580 [ 4797.307621][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4797.307621][ T253] ip6_route_add+0x1c/0x140 [ 4797.307621][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4797.307621][ T253] addrconf_add_dev+0xe2/0x170 [ 4797.307621][ T253] inet6_addr_add+0x12f/0xa40 [ 4797.307621][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4797.307621][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4797.307621][ T253] netlink_rcv_skb+0x130/0x360 [ 4797.307621][ T253] netlink_unicast+0x449/0x710 [ 4797.307621][ T253] netlink_sendmsg+0x723/0xbe0 [ 4797.307621][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4797.307621][ T253] ___sys_sendmsg+0xee/0x170 [ 4797.307621][ T253] __sys_sendmsg+0xcd/0x170 [ 4797.307621][ T253] do_syscall_64+0xc6/0x1e0 [ 4797.307621][ T253] [ 4797.309822][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4797.309822][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4797.309822][ T253] ipv6_find_idev+0x102/0x170 [ 4797.309822][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4797.309822][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4797.309822][ T253] netlink_rcv_skb+0x130/0x360 [ 4797.309822][ T253] netlink_unicast+0x449/0x710 [ 4797.309822][ T253] netlink_sendmsg+0x723/0xbe0 [ 4797.309822][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4797.309822][ T253] ___sys_sendmsg+0xee/0x170 [ 4797.309822][ T253] __sys_sendmsg+0xcd/0x170 [ 4797.309822][ T253] do_syscall_64+0xc6/0x1e0 [ 4797.309822][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4797.309822][ T253] [ 4797.311544][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4797.311544][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4797.311544][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4797.311544][ T253] ipv6_find_idev+0x102/0x170 [ 4797.311544][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4797.311544][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4797.311544][ T253] netlink_rcv_skb+0x130/0x360 [ 4797.311544][ T253] netlink_unicast+0x449/0x710 [ 4797.311544][ T253] netlink_sendmsg+0x723/0xbe0 [ 4797.311544][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4797.311544][ T253] ___sys_sendmsg+0xee/0x170 [ 4797.311544][ T253] __sys_sendmsg+0xcd/0x170 [ 4797.311544][ T253] do_syscall_64+0xc6/0x1e0 [ 4797.311544][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4797.311544][ T253] [ 4807.554274][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4807.554704][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4807.554704][ T253] dst_init+0x84/0x4a0 [ 4807.554704][ T253] dst_alloc+0x97/0x150 [ 4807.554704][ T253] ip6_dst_alloc+0x23/0x90 [ 4807.554704][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4807.554704][ T253] ip6_pol_route+0x56f/0x840 [ 4807.554704][ T253] fib6_rule_lookup+0x334/0x630 [ 4807.554704][ T253] ip6_route_output_flags+0x259/0x480 [ 4807.554704][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4807.554704][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4807.554704][ T253] netlink_rcv_skb+0x130/0x360 [ 4807.554704][ T253] netlink_unicast+0x449/0x710 [ 4807.554704][ T253] netlink_sendmsg+0x723/0xbe0 [ 4807.554704][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4807.554704][ T253] ___sys_sendmsg+0xee/0x170 [ 4807.554704][ T253] __sys_sendmsg+0xcd/0x170 [ 4807.554704][ T253] do_syscall_64+0xc6/0x1e0 [ 4807.554704][ T253] [ 4807.556956][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4807.556956][ T253] netdev_get_by_index+0x5e/0x80 [ 4807.556956][ T253] fib6_nh_init+0x3d8/0x1580 [ 4807.556956][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4807.556956][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4807.556956][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4807.556956][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4807.556956][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4807.556956][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4807.556956][ T253] addrconf_dad_begin+0x310/0x670 [ 4807.556956][ T253] addrconf_dad_work+0x10b/0xab0 [ 4807.556956][ T253] process_one_work+0x84d/0x18a0 [ 4807.556956][ T253] worker_thread+0x587/0xd30 [ 4807.556956][ T253] kthread+0x28a/0x350 [ 4807.556956][ T253] ret_from_fork+0x31/0x70 [ 4807.556956][ T253] ret_from_fork_asm+0x1a/0x30 [ 4807.556956][ T253] [ 4807.559134][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4807.559134][ T253] netdev_get_by_index+0x5e/0x80 [ 4807.559134][ T253] fib6_nh_init+0x3d8/0x1580 [ 4807.559134][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4807.559134][ T253] ip6_route_add+0x1c/0x140 [ 4807.559134][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4807.559134][ T253] inet6_addr_add+0x4f8/0xa40 [ 4807.559134][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4807.559134][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4807.559134][ T253] netlink_rcv_skb+0x130/0x360 [ 4807.559134][ T253] netlink_unicast+0x449/0x710 [ 4807.559134][ T253] netlink_sendmsg+0x723/0xbe0 [ 4807.559134][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4807.559134][ T253] ___sys_sendmsg+0xee/0x170 [ 4807.559134][ T253] __sys_sendmsg+0xcd/0x170 [ 4807.559134][ T253] do_syscall_64+0xc6/0x1e0 [ 4807.559134][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4807.559134][ T253] [ 4807.561375][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4807.561375][ T253] netdev_get_by_index+0x5e/0x80 [ 4807.561375][ T253] fib6_nh_init+0x3d8/0x1580 [ 4807.561375][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4807.561375][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4807.561375][ T253] ipv6_add_addr+0x411/0x2000 [ 4807.561375][ T253] inet6_addr_add+0x30e/0xa40 [ 4807.561375][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4807.561375][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4807.561375][ T253] netlink_rcv_skb+0x130/0x360 [ 4807.561375][ T253] netlink_unicast+0x449/0x710 [ 4807.561375][ T253] netlink_sendmsg+0x723/0xbe0 [ 4807.561375][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4807.561375][ T253] ___sys_sendmsg+0xee/0x170 [ 4807.561375][ T253] __sys_sendmsg+0xcd/0x170 [ 4807.561375][ T253] do_syscall_64+0xc6/0x1e0 [ 4807.561375][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4807.561375][ T253] [ 4807.563660][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4807.563660][ T253] netdev_get_by_index+0x5e/0x80 [ 4807.563660][ T253] fib6_nh_init+0x3d8/0x1580 [ 4807.563660][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4807.563660][ T253] ip6_route_add+0x1c/0x140 [ 4807.563660][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4807.563660][ T253] addrconf_add_dev+0xe2/0x170 [ 4807.563660][ T253] inet6_addr_add+0x12f/0xa40 [ 4807.563660][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4807.563660][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4807.563660][ T253] netlink_rcv_skb+0x130/0x360 [ 4807.563660][ T253] netlink_unicast+0x449/0x710 [ 4807.563660][ T253] netlink_sendmsg+0x723/0xbe0 [ 4807.563660][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4807.563660][ T253] ___sys_sendmsg+0xee/0x170 [ 4807.563660][ T253] __sys_sendmsg+0xcd/0x170 [ 4807.563660][ T253] do_syscall_64+0xc6/0x1e0 [ 4807.563660][ T253] [ 4807.565883][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4807.565883][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4807.565883][ T253] ipv6_find_idev+0x102/0x170 [ 4807.565883][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4807.565883][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4807.565883][ T253] netlink_rcv_skb+0x130/0x360 [ 4807.565883][ T253] netlink_unicast+0x449/0x710 [ 4807.565883][ T253] netlink_sendmsg+0x723/0xbe0 [ 4807.565883][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4807.565883][ T253] ___sys_sendmsg+0xee/0x170 [ 4807.565883][ T253] __sys_sendmsg+0xcd/0x170 [ 4807.565883][ T253] do_syscall_64+0xc6/0x1e0 [ 4807.565883][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4807.565883][ T253] [ 4807.567630][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4807.567630][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4807.567630][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4807.567630][ T253] ipv6_find_idev+0x102/0x170 [ 4807.567630][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4807.567630][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4807.567630][ T253] netlink_rcv_skb+0x130/0x360 [ 4807.567630][ T253] netlink_unicast+0x449/0x710 [ 4807.567630][ T253] netlink_sendmsg+0x723/0xbe0 [ 4807.567630][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4807.567630][ T253] ___sys_sendmsg+0xee/0x170 [ 4807.567630][ T253] __sys_sendmsg+0xcd/0x170 [ 4807.567630][ T253] do_syscall_64+0xc6/0x1e0 [ 4807.567630][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4807.567630][ T253] [ 4817.770339][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4817.770838][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4817.770838][ T253] dst_init+0x84/0x4a0 [ 4817.770838][ T253] dst_alloc+0x97/0x150 [ 4817.770838][ T253] ip6_dst_alloc+0x23/0x90 [ 4817.770838][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4817.770838][ T253] ip6_pol_route+0x56f/0x840 [ 4817.770838][ T253] fib6_rule_lookup+0x334/0x630 [ 4817.770838][ T253] ip6_route_output_flags+0x259/0x480 [ 4817.770838][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4817.770838][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4817.770838][ T253] netlink_rcv_skb+0x130/0x360 [ 4817.770838][ T253] netlink_unicast+0x449/0x710 [ 4817.770838][ T253] netlink_sendmsg+0x723/0xbe0 [ 4817.770838][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4817.770838][ T253] ___sys_sendmsg+0xee/0x170 [ 4817.770838][ T253] __sys_sendmsg+0xcd/0x170 [ 4817.770838][ T253] do_syscall_64+0xc6/0x1e0 [ 4817.770838][ T253] [ 4817.773037][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4817.773037][ T253] netdev_get_by_index+0x5e/0x80 [ 4817.773037][ T253] fib6_nh_init+0x3d8/0x1580 [ 4817.773037][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4817.773037][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4817.773037][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4817.773037][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4817.773037][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4817.773037][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4817.773037][ T253] addrconf_dad_begin+0x310/0x670 [ 4817.773037][ T253] addrconf_dad_work+0x10b/0xab0 [ 4817.773037][ T253] process_one_work+0x84d/0x18a0 [ 4817.773037][ T253] worker_thread+0x587/0xd30 [ 4817.773037][ T253] kthread+0x28a/0x350 [ 4817.773037][ T253] ret_from_fork+0x31/0x70 [ 4817.773037][ T253] ret_from_fork_asm+0x1a/0x30 [ 4817.773037][ T253] [ 4817.775176][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4817.775176][ T253] netdev_get_by_index+0x5e/0x80 [ 4817.775176][ T253] fib6_nh_init+0x3d8/0x1580 [ 4817.775176][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4817.775176][ T253] ip6_route_add+0x1c/0x140 [ 4817.775176][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4817.775176][ T253] inet6_addr_add+0x4f8/0xa40 [ 4817.775176][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4817.775176][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4817.775176][ T253] netlink_rcv_skb+0x130/0x360 [ 4817.775176][ T253] netlink_unicast+0x449/0x710 [ 4817.775176][ T253] netlink_sendmsg+0x723/0xbe0 [ 4817.775176][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4817.775176][ T253] ___sys_sendmsg+0xee/0x170 [ 4817.775176][ T253] __sys_sendmsg+0xcd/0x170 [ 4817.775176][ T253] do_syscall_64+0xc6/0x1e0 [ 4817.775176][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4817.775176][ T253] [ 4817.777432][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4817.777432][ T253] netdev_get_by_index+0x5e/0x80 [ 4817.777432][ T253] fib6_nh_init+0x3d8/0x1580 [ 4817.777432][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4817.777432][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4817.777432][ T253] ipv6_add_addr+0x411/0x2000 [ 4817.777432][ T253] inet6_addr_add+0x30e/0xa40 [ 4817.777432][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4817.777432][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4817.777432][ T253] netlink_rcv_skb+0x130/0x360 [ 4817.777432][ T253] netlink_unicast+0x449/0x710 [ 4817.777432][ T253] netlink_sendmsg+0x723/0xbe0 [ 4817.777432][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4817.777432][ T253] ___sys_sendmsg+0xee/0x170 [ 4817.777432][ T253] __sys_sendmsg+0xcd/0x170 [ 4817.777432][ T253] do_syscall_64+0xc6/0x1e0 [ 4817.777432][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4817.777432][ T253] [ 4817.779664][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4817.779664][ T253] netdev_get_by_index+0x5e/0x80 [ 4817.779664][ T253] fib6_nh_init+0x3d8/0x1580 [ 4817.779664][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4817.779664][ T253] ip6_route_add+0x1c/0x140 [ 4817.779664][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4817.779664][ T253] addrconf_add_dev+0xe2/0x170 [ 4817.779664][ T253] inet6_addr_add+0x12f/0xa40 [ 4817.779664][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4817.779664][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4817.779664][ T253] netlink_rcv_skb+0x130/0x360 [ 4817.779664][ T253] netlink_unicast+0x449/0x710 [ 4817.779664][ T253] netlink_sendmsg+0x723/0xbe0 [ 4817.779664][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4817.779664][ T253] ___sys_sendmsg+0xee/0x170 [ 4817.779664][ T253] __sys_sendmsg+0xcd/0x170 [ 4817.779664][ T253] do_syscall_64+0xc6/0x1e0 [ 4817.779664][ T253] [ 4817.782379][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4817.782379][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4817.782379][ T253] ipv6_find_idev+0x102/0x170 [ 4817.782379][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4817.782379][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4817.782379][ T253] netlink_rcv_skb+0x130/0x360 [ 4817.782379][ T253] netlink_unicast+0x449/0x710 [ 4817.782379][ T253] netlink_sendmsg+0x723/0xbe0 [ 4817.782379][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4817.782379][ T253] ___sys_sendmsg+0xee/0x170 [ 4817.782379][ T253] __sys_sendmsg+0xcd/0x170 [ 4817.782379][ T253] do_syscall_64+0xc6/0x1e0 [ 4817.782379][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4817.782379][ T253] [ 4817.784096][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4817.784096][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4817.784096][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4817.784096][ T253] ipv6_find_idev+0x102/0x170 [ 4817.784096][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4817.784096][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4817.784096][ T253] netlink_rcv_skb+0x130/0x360 [ 4817.784096][ T253] netlink_unicast+0x449/0x710 [ 4817.784096][ T253] netlink_sendmsg+0x723/0xbe0 [ 4817.784096][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4817.784096][ T253] ___sys_sendmsg+0xee/0x170 [ 4817.784096][ T253] __sys_sendmsg+0xcd/0x170 [ 4817.784096][ T253] do_syscall_64+0xc6/0x1e0 [ 4817.784096][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4817.784096][ T253] [ 4828.026320][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4828.026839][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4828.026839][ T253] dst_init+0x84/0x4a0 [ 4828.026839][ T253] dst_alloc+0x97/0x150 [ 4828.026839][ T253] ip6_dst_alloc+0x23/0x90 [ 4828.026839][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4828.026839][ T253] ip6_pol_route+0x56f/0x840 [ 4828.026839][ T253] fib6_rule_lookup+0x334/0x630 [ 4828.026839][ T253] ip6_route_output_flags+0x259/0x480 [ 4828.026839][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4828.026839][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4828.026839][ T253] netlink_rcv_skb+0x130/0x360 [ 4828.026839][ T253] netlink_unicast+0x449/0x710 [ 4828.026839][ T253] netlink_sendmsg+0x723/0xbe0 [ 4828.026839][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4828.026839][ T253] ___sys_sendmsg+0xee/0x170 [ 4828.026839][ T253] __sys_sendmsg+0xcd/0x170 [ 4828.026839][ T253] do_syscall_64+0xc6/0x1e0 [ 4828.026839][ T253] [ 4828.029047][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4828.029047][ T253] netdev_get_by_index+0x5e/0x80 [ 4828.029047][ T253] fib6_nh_init+0x3d8/0x1580 [ 4828.029047][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4828.029047][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4828.029047][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4828.029047][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4828.029047][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4828.029047][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4828.029047][ T253] addrconf_dad_begin+0x310/0x670 [ 4828.029047][ T253] addrconf_dad_work+0x10b/0xab0 [ 4828.029047][ T253] process_one_work+0x84d/0x18a0 [ 4828.029047][ T253] worker_thread+0x587/0xd30 [ 4828.029047][ T253] kthread+0x28a/0x350 [ 4828.029047][ T253] ret_from_fork+0x31/0x70 [ 4828.029047][ T253] ret_from_fork_asm+0x1a/0x30 [ 4828.029047][ T253] [ 4828.031186][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4828.031186][ T253] netdev_get_by_index+0x5e/0x80 [ 4828.031186][ T253] fib6_nh_init+0x3d8/0x1580 [ 4828.031186][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4828.031186][ T253] ip6_route_add+0x1c/0x140 [ 4828.031186][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4828.031186][ T253] inet6_addr_add+0x4f8/0xa40 [ 4828.031186][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4828.031186][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4828.031186][ T253] netlink_rcv_skb+0x130/0x360 [ 4828.031186][ T253] netlink_unicast+0x449/0x710 [ 4828.031186][ T253] netlink_sendmsg+0x723/0xbe0 [ 4828.031186][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4828.031186][ T253] ___sys_sendmsg+0xee/0x170 [ 4828.031186][ T253] __sys_sendmsg+0xcd/0x170 [ 4828.031186][ T253] do_syscall_64+0xc6/0x1e0 [ 4828.031186][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4828.031186][ T253] [ 4828.033423][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4828.033423][ T253] netdev_get_by_index+0x5e/0x80 [ 4828.033423][ T253] fib6_nh_init+0x3d8/0x1580 [ 4828.033423][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4828.033423][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4828.033423][ T253] ipv6_add_addr+0x411/0x2000 [ 4828.033423][ T253] inet6_addr_add+0x30e/0xa40 [ 4828.033423][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4828.033423][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4828.033423][ T253] netlink_rcv_skb+0x130/0x360 [ 4828.033423][ T253] netlink_unicast+0x449/0x710 [ 4828.033423][ T253] netlink_sendmsg+0x723/0xbe0 [ 4828.033423][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4828.033423][ T253] ___sys_sendmsg+0xee/0x170 [ 4828.033423][ T253] __sys_sendmsg+0xcd/0x170 [ 4828.033423][ T253] do_syscall_64+0xc6/0x1e0 [ 4828.033423][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4828.033423][ T253] [ 4828.035659][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4828.035659][ T253] netdev_get_by_index+0x5e/0x80 [ 4828.035659][ T253] fib6_nh_init+0x3d8/0x1580 [ 4828.035659][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4828.035659][ T253] ip6_route_add+0x1c/0x140 [ 4828.035659][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4828.035659][ T253] addrconf_add_dev+0xe2/0x170 [ 4828.035659][ T253] inet6_addr_add+0x12f/0xa40 [ 4828.035659][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4828.035659][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4828.035659][ T253] netlink_rcv_skb+0x130/0x360 [ 4828.035659][ T253] netlink_unicast+0x449/0x710 [ 4828.035659][ T253] netlink_sendmsg+0x723/0xbe0 [ 4828.035659][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4828.035659][ T253] ___sys_sendmsg+0xee/0x170 [ 4828.035659][ T253] __sys_sendmsg+0xcd/0x170 [ 4828.035659][ T253] do_syscall_64+0xc6/0x1e0 [ 4828.035659][ T253] [ 4828.037862][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4828.037862][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4828.037862][ T253] ipv6_find_idev+0x102/0x170 [ 4828.037862][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4828.037862][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4828.037862][ T253] netlink_rcv_skb+0x130/0x360 [ 4828.037862][ T253] netlink_unicast+0x449/0x710 [ 4828.037862][ T253] netlink_sendmsg+0x723/0xbe0 [ 4828.037862][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4828.037862][ T253] ___sys_sendmsg+0xee/0x170 [ 4828.037862][ T253] __sys_sendmsg+0xcd/0x170 [ 4828.037862][ T253] do_syscall_64+0xc6/0x1e0 [ 4828.037862][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4828.037862][ T253] [ 4828.039583][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4828.039583][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4828.039583][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4828.039583][ T253] ipv6_find_idev+0x102/0x170 [ 4828.039583][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4828.039583][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4828.039583][ T253] netlink_rcv_skb+0x130/0x360 [ 4828.039583][ T253] netlink_unicast+0x449/0x710 [ 4828.039583][ T253] netlink_sendmsg+0x723/0xbe0 [ 4828.039583][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4828.039583][ T253] ___sys_sendmsg+0xee/0x170 [ 4828.039583][ T253] __sys_sendmsg+0xcd/0x170 [ 4828.039583][ T253] do_syscall_64+0xc6/0x1e0 [ 4828.039583][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4828.039583][ T253] [ 4838.098361][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4838.098859][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4838.098859][ T253] dst_init+0x84/0x4a0 [ 4838.098859][ T253] dst_alloc+0x97/0x150 [ 4838.098859][ T253] ip6_dst_alloc+0x23/0x90 [ 4838.098859][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4838.098859][ T253] ip6_pol_route+0x56f/0x840 [ 4838.098859][ T253] fib6_rule_lookup+0x334/0x630 [ 4838.098859][ T253] ip6_route_output_flags+0x259/0x480 [ 4838.098859][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4838.098859][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4838.098859][ T253] netlink_rcv_skb+0x130/0x360 [ 4838.098859][ T253] netlink_unicast+0x449/0x710 [ 4838.098859][ T253] netlink_sendmsg+0x723/0xbe0 [ 4838.098859][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4838.098859][ T253] ___sys_sendmsg+0xee/0x170 [ 4838.098859][ T253] __sys_sendmsg+0xcd/0x170 [ 4838.098859][ T253] do_syscall_64+0xc6/0x1e0 [ 4838.098859][ T253] [ 4838.101052][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4838.101052][ T253] netdev_get_by_index+0x5e/0x80 [ 4838.101052][ T253] fib6_nh_init+0x3d8/0x1580 [ 4838.101052][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4838.101052][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4838.101052][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4838.101052][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4838.101052][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4838.101052][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4838.101052][ T253] addrconf_dad_begin+0x310/0x670 [ 4838.101052][ T253] addrconf_dad_work+0x10b/0xab0 [ 4838.101052][ T253] process_one_work+0x84d/0x18a0 [ 4838.101052][ T253] worker_thread+0x587/0xd30 [ 4838.101052][ T253] kthread+0x28a/0x350 [ 4838.101052][ T253] ret_from_fork+0x31/0x70 [ 4838.101052][ T253] ret_from_fork_asm+0x1a/0x30 [ 4838.101052][ T253] [ 4838.103193][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4838.103193][ T253] netdev_get_by_index+0x5e/0x80 [ 4838.103193][ T253] fib6_nh_init+0x3d8/0x1580 [ 4838.103193][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4838.103193][ T253] ip6_route_add+0x1c/0x140 [ 4838.103193][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4838.103193][ T253] inet6_addr_add+0x4f8/0xa40 [ 4838.103193][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4838.103193][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4838.103193][ T253] netlink_rcv_skb+0x130/0x360 [ 4838.103193][ T253] netlink_unicast+0x449/0x710 [ 4838.103193][ T253] netlink_sendmsg+0x723/0xbe0 [ 4838.103193][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4838.103193][ T253] ___sys_sendmsg+0xee/0x170 [ 4838.103193][ T253] __sys_sendmsg+0xcd/0x170 [ 4838.103193][ T253] do_syscall_64+0xc6/0x1e0 [ 4838.103193][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4838.103193][ T253] [ 4838.105429][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4838.105429][ T253] netdev_get_by_index+0x5e/0x80 [ 4838.105429][ T253] fib6_nh_init+0x3d8/0x1580 [ 4838.105429][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4838.105429][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4838.105429][ T253] ipv6_add_addr+0x411/0x2000 [ 4838.105429][ T253] inet6_addr_add+0x30e/0xa40 [ 4838.105429][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4838.105429][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4838.105429][ T253] netlink_rcv_skb+0x130/0x360 [ 4838.105429][ T253] netlink_unicast+0x449/0x710 [ 4838.105429][ T253] netlink_sendmsg+0x723/0xbe0 [ 4838.105429][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4838.105429][ T253] ___sys_sendmsg+0xee/0x170 [ 4838.105429][ T253] __sys_sendmsg+0xcd/0x170 [ 4838.105429][ T253] do_syscall_64+0xc6/0x1e0 [ 4838.105429][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4838.105429][ T253] [ 4838.107689][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4838.107689][ T253] netdev_get_by_index+0x5e/0x80 [ 4838.107689][ T253] fib6_nh_init+0x3d8/0x1580 [ 4838.107689][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4838.107689][ T253] ip6_route_add+0x1c/0x140 [ 4838.107689][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4838.107689][ T253] addrconf_add_dev+0xe2/0x170 [ 4838.107689][ T253] inet6_addr_add+0x12f/0xa40 [ 4838.107689][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4838.107689][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4838.107689][ T253] netlink_rcv_skb+0x130/0x360 [ 4838.107689][ T253] netlink_unicast+0x449/0x710 [ 4838.107689][ T253] netlink_sendmsg+0x723/0xbe0 [ 4838.107689][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4838.107689][ T253] ___sys_sendmsg+0xee/0x170 [ 4838.107689][ T253] __sys_sendmsg+0xcd/0x170 [ 4838.107689][ T253] do_syscall_64+0xc6/0x1e0 [ 4838.107689][ T253] [ 4838.109973][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4838.109973][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4838.109973][ T253] ipv6_find_idev+0x102/0x170 [ 4838.109973][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4838.109973][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4838.109973][ T253] netlink_rcv_skb+0x130/0x360 [ 4838.109973][ T253] netlink_unicast+0x449/0x710 [ 4838.109973][ T253] netlink_sendmsg+0x723/0xbe0 [ 4838.109973][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4838.109973][ T253] ___sys_sendmsg+0xee/0x170 [ 4838.109973][ T253] __sys_sendmsg+0xcd/0x170 [ 4838.109973][ T253] do_syscall_64+0xc6/0x1e0 [ 4838.109973][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4838.109973][ T253] [ 4838.111741][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4838.111741][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4838.111741][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4838.111741][ T253] ipv6_find_idev+0x102/0x170 [ 4838.111741][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4838.111741][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4838.111741][ T253] netlink_rcv_skb+0x130/0x360 [ 4838.111741][ T253] netlink_unicast+0x449/0x710 [ 4838.111741][ T253] netlink_sendmsg+0x723/0xbe0 [ 4838.111741][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4838.111741][ T253] ___sys_sendmsg+0xee/0x170 [ 4838.111741][ T253] __sys_sendmsg+0xcd/0x170 [ 4838.111741][ T253] do_syscall_64+0xc6/0x1e0 [ 4838.111741][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4838.111741][ T253] [ 4848.290367][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4848.290854][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4848.290854][ T253] dst_init+0x84/0x4a0 [ 4848.290854][ T253] dst_alloc+0x97/0x150 [ 4848.290854][ T253] ip6_dst_alloc+0x23/0x90 [ 4848.290854][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4848.290854][ T253] ip6_pol_route+0x56f/0x840 [ 4848.290854][ T253] fib6_rule_lookup+0x334/0x630 [ 4848.290854][ T253] ip6_route_output_flags+0x259/0x480 [ 4848.290854][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4848.290854][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4848.290854][ T253] netlink_rcv_skb+0x130/0x360 [ 4848.290854][ T253] netlink_unicast+0x449/0x710 [ 4848.290854][ T253] netlink_sendmsg+0x723/0xbe0 [ 4848.290854][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4848.290854][ T253] ___sys_sendmsg+0xee/0x170 [ 4848.290854][ T253] __sys_sendmsg+0xcd/0x170 [ 4848.290854][ T253] do_syscall_64+0xc6/0x1e0 [ 4848.290854][ T253] [ 4848.293184][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4848.293184][ T253] netdev_get_by_index+0x5e/0x80 [ 4848.293184][ T253] fib6_nh_init+0x3d8/0x1580 [ 4848.293184][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4848.293184][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4848.293184][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4848.293184][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4848.293184][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4848.293184][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4848.293184][ T253] addrconf_dad_begin+0x310/0x670 [ 4848.293184][ T253] addrconf_dad_work+0x10b/0xab0 [ 4848.293184][ T253] process_one_work+0x84d/0x18a0 [ 4848.293184][ T253] worker_thread+0x587/0xd30 [ 4848.293184][ T253] kthread+0x28a/0x350 [ 4848.293184][ T253] ret_from_fork+0x31/0x70 [ 4848.293184][ T253] ret_from_fork_asm+0x1a/0x30 [ 4848.293184][ T253] [ 4848.295420][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4848.295420][ T253] netdev_get_by_index+0x5e/0x80 [ 4848.295420][ T253] fib6_nh_init+0x3d8/0x1580 [ 4848.295420][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4848.295420][ T253] ip6_route_add+0x1c/0x140 [ 4848.295420][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4848.295420][ T253] inet6_addr_add+0x4f8/0xa40 [ 4848.295420][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4848.295420][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4848.295420][ T253] netlink_rcv_skb+0x130/0x360 [ 4848.295420][ T253] netlink_unicast+0x449/0x710 [ 4848.295420][ T253] netlink_sendmsg+0x723/0xbe0 [ 4848.295420][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4848.295420][ T253] ___sys_sendmsg+0xee/0x170 [ 4848.295420][ T253] __sys_sendmsg+0xcd/0x170 [ 4848.295420][ T253] do_syscall_64+0xc6/0x1e0 [ 4848.295420][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4848.295420][ T253] [ 4848.297784][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4848.297784][ T253] netdev_get_by_index+0x5e/0x80 [ 4848.297784][ T253] fib6_nh_init+0x3d8/0x1580 [ 4848.297784][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4848.297784][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4848.297784][ T253] ipv6_add_addr+0x411/0x2000 [ 4848.297784][ T253] inet6_addr_add+0x30e/0xa40 [ 4848.297784][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4848.297784][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4848.297784][ T253] netlink_rcv_skb+0x130/0x360 [ 4848.297784][ T253] netlink_unicast+0x449/0x710 [ 4848.297784][ T253] netlink_sendmsg+0x723/0xbe0 [ 4848.297784][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4848.297784][ T253] ___sys_sendmsg+0xee/0x170 [ 4848.297784][ T253] __sys_sendmsg+0xcd/0x170 [ 4848.297784][ T253] do_syscall_64+0xc6/0x1e0 [ 4848.297784][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4848.297784][ T253] [ 4848.300153][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4848.300153][ T253] netdev_get_by_index+0x5e/0x80 [ 4848.300153][ T253] fib6_nh_init+0x3d8/0x1580 [ 4848.300153][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4848.300153][ T253] ip6_route_add+0x1c/0x140 [ 4848.300153][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4848.300153][ T253] addrconf_add_dev+0xe2/0x170 [ 4848.300153][ T253] inet6_addr_add+0x12f/0xa40 [ 4848.300153][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4848.300153][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4848.300153][ T253] netlink_rcv_skb+0x130/0x360 [ 4848.300153][ T253] netlink_unicast+0x449/0x710 [ 4848.300153][ T253] netlink_sendmsg+0x723/0xbe0 [ 4848.300153][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4848.300153][ T253] ___sys_sendmsg+0xee/0x170 [ 4848.300153][ T253] __sys_sendmsg+0xcd/0x170 [ 4848.300153][ T253] do_syscall_64+0xc6/0x1e0 [ 4848.300153][ T253] [ 4848.302485][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4848.302485][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4848.302485][ T253] ipv6_find_idev+0x102/0x170 [ 4848.302485][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4848.302485][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4848.302485][ T253] netlink_rcv_skb+0x130/0x360 [ 4848.302485][ T253] netlink_unicast+0x449/0x710 [ 4848.302485][ T253] netlink_sendmsg+0x723/0xbe0 [ 4848.302485][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4848.302485][ T253] ___sys_sendmsg+0xee/0x170 [ 4848.302485][ T253] __sys_sendmsg+0xcd/0x170 [ 4848.302485][ T253] do_syscall_64+0xc6/0x1e0 [ 4848.302485][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4848.302485][ T253] [ 4848.304347][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4848.304347][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4848.304347][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4848.304347][ T253] ipv6_find_idev+0x102/0x170 [ 4848.304347][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4848.304347][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4848.304347][ T253] netlink_rcv_skb+0x130/0x360 [ 4848.304347][ T253] netlink_unicast+0x449/0x710 [ 4848.304347][ T253] netlink_sendmsg+0x723/0xbe0 [ 4848.304347][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4848.304347][ T253] ___sys_sendmsg+0xee/0x170 [ 4848.304347][ T253] __sys_sendmsg+0xcd/0x170 [ 4848.304347][ T253] do_syscall_64+0xc6/0x1e0 [ 4848.304347][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4848.304347][ T253] [ 4858.410330][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4858.410807][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4858.410807][ T253] dst_init+0x84/0x4a0 [ 4858.410807][ T253] dst_alloc+0x97/0x150 [ 4858.410807][ T253] ip6_dst_alloc+0x23/0x90 [ 4858.410807][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4858.410807][ T253] ip6_pol_route+0x56f/0x840 [ 4858.410807][ T253] fib6_rule_lookup+0x334/0x630 [ 4858.410807][ T253] ip6_route_output_flags+0x259/0x480 [ 4858.410807][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4858.410807][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4858.410807][ T253] netlink_rcv_skb+0x130/0x360 [ 4858.410807][ T253] netlink_unicast+0x449/0x710 [ 4858.410807][ T253] netlink_sendmsg+0x723/0xbe0 [ 4858.410807][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4858.410807][ T253] ___sys_sendmsg+0xee/0x170 [ 4858.410807][ T253] __sys_sendmsg+0xcd/0x170 [ 4858.410807][ T253] do_syscall_64+0xc6/0x1e0 [ 4858.410807][ T253] [ 4858.413097][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4858.413097][ T253] netdev_get_by_index+0x5e/0x80 [ 4858.413097][ T253] fib6_nh_init+0x3d8/0x1580 [ 4858.413097][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4858.413097][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4858.413097][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4858.413097][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4858.413097][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4858.413097][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4858.413097][ T253] addrconf_dad_begin+0x310/0x670 [ 4858.413097][ T253] addrconf_dad_work+0x10b/0xab0 [ 4858.413097][ T253] process_one_work+0x84d/0x18a0 [ 4858.413097][ T253] worker_thread+0x587/0xd30 [ 4858.413097][ T253] kthread+0x28a/0x350 [ 4858.413097][ T253] ret_from_fork+0x31/0x70 [ 4858.413097][ T253] ret_from_fork_asm+0x1a/0x30 [ 4858.413097][ T253] [ 4858.415444][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4858.415444][ T253] netdev_get_by_index+0x5e/0x80 [ 4858.415444][ T253] fib6_nh_init+0x3d8/0x1580 [ 4858.415444][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4858.415444][ T253] ip6_route_add+0x1c/0x140 [ 4858.415444][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4858.415444][ T253] inet6_addr_add+0x4f8/0xa40 [ 4858.415444][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4858.415444][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4858.415444][ T253] netlink_rcv_skb+0x130/0x360 [ 4858.415444][ T253] netlink_unicast+0x449/0x710 [ 4858.415444][ T253] netlink_sendmsg+0x723/0xbe0 [ 4858.415444][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4858.415444][ T253] ___sys_sendmsg+0xee/0x170 [ 4858.415444][ T253] __sys_sendmsg+0xcd/0x170 [ 4858.415444][ T253] do_syscall_64+0xc6/0x1e0 [ 4858.415444][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4858.415444][ T253] [ 4858.417912][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4858.417912][ T253] netdev_get_by_index+0x5e/0x80 [ 4858.417912][ T253] fib6_nh_init+0x3d8/0x1580 [ 4858.417912][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4858.417912][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4858.417912][ T253] ipv6_add_addr+0x411/0x2000 [ 4858.417912][ T253] inet6_addr_add+0x30e/0xa40 [ 4858.417912][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4858.417912][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4858.417912][ T253] netlink_rcv_skb+0x130/0x360 [ 4858.417912][ T253] netlink_unicast+0x449/0x710 [ 4858.417912][ T253] netlink_sendmsg+0x723/0xbe0 [ 4858.417912][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4858.417912][ T253] ___sys_sendmsg+0xee/0x170 [ 4858.417912][ T253] __sys_sendmsg+0xcd/0x170 [ 4858.417912][ T253] do_syscall_64+0xc6/0x1e0 [ 4858.417912][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4858.417912][ T253] [ 4858.420383][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4858.420383][ T253] netdev_get_by_index+0x5e/0x80 [ 4858.420383][ T253] fib6_nh_init+0x3d8/0x1580 [ 4858.420383][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4858.420383][ T253] ip6_route_add+0x1c/0x140 [ 4858.420383][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4858.420383][ T253] addrconf_add_dev+0xe2/0x170 [ 4858.420383][ T253] inet6_addr_add+0x12f/0xa40 [ 4858.420383][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4858.420383][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4858.420383][ T253] netlink_rcv_skb+0x130/0x360 [ 4858.420383][ T253] netlink_unicast+0x449/0x710 [ 4858.420383][ T253] netlink_sendmsg+0x723/0xbe0 [ 4858.420383][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4858.420383][ T253] ___sys_sendmsg+0xee/0x170 [ 4858.420383][ T253] __sys_sendmsg+0xcd/0x170 [ 4858.420383][ T253] do_syscall_64+0xc6/0x1e0 [ 4858.420383][ T253] [ 4858.422799][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4858.422799][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4858.422799][ T253] ipv6_find_idev+0x102/0x170 [ 4858.422799][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4858.422799][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4858.422799][ T253] netlink_rcv_skb+0x130/0x360 [ 4858.422799][ T253] netlink_unicast+0x449/0x710 [ 4858.422799][ T253] netlink_sendmsg+0x723/0xbe0 [ 4858.422799][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4858.422799][ T253] ___sys_sendmsg+0xee/0x170 [ 4858.422799][ T253] __sys_sendmsg+0xcd/0x170 [ 4858.422799][ T253] do_syscall_64+0xc6/0x1e0 [ 4858.422799][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4858.422799][ T253] [ 4858.424692][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4858.424692][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4858.424692][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4858.424692][ T253] ipv6_find_idev+0x102/0x170 [ 4858.424692][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4858.424692][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4858.424692][ T253] netlink_rcv_skb+0x130/0x360 [ 4858.424692][ T253] netlink_unicast+0x449/0x710 [ 4858.424692][ T253] netlink_sendmsg+0x723/0xbe0 [ 4858.424692][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4858.424692][ T253] ___sys_sendmsg+0xee/0x170 [ 4858.424692][ T253] __sys_sendmsg+0xcd/0x170 [ 4858.424692][ T253] do_syscall_64+0xc6/0x1e0 [ 4858.424692][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4858.424692][ T253] [ 4868.666312][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4868.666740][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4868.666740][ T253] dst_init+0x84/0x4a0 [ 4868.666740][ T253] dst_alloc+0x97/0x150 [ 4868.666740][ T253] ip6_dst_alloc+0x23/0x90 [ 4868.666740][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4868.666740][ T253] ip6_pol_route+0x56f/0x840 [ 4868.666740][ T253] fib6_rule_lookup+0x334/0x630 [ 4868.666740][ T253] ip6_route_output_flags+0x259/0x480 [ 4868.666740][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4868.666740][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4868.666740][ T253] netlink_rcv_skb+0x130/0x360 [ 4868.666740][ T253] netlink_unicast+0x449/0x710 [ 4868.666740][ T253] netlink_sendmsg+0x723/0xbe0 [ 4868.666740][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4868.666740][ T253] ___sys_sendmsg+0xee/0x170 [ 4868.666740][ T253] __sys_sendmsg+0xcd/0x170 [ 4868.666740][ T253] do_syscall_64+0xc6/0x1e0 [ 4868.666740][ T253] [ 4868.668948][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4868.668948][ T253] netdev_get_by_index+0x5e/0x80 [ 4868.668948][ T253] fib6_nh_init+0x3d8/0x1580 [ 4868.668948][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4868.668948][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4868.668948][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4868.668948][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4868.668948][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4868.668948][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4868.668948][ T253] addrconf_dad_begin+0x310/0x670 [ 4868.668948][ T253] addrconf_dad_work+0x10b/0xab0 [ 4868.668948][ T253] process_one_work+0x84d/0x18a0 [ 4868.668948][ T253] worker_thread+0x587/0xd30 [ 4868.668948][ T253] kthread+0x28a/0x350 [ 4868.668948][ T253] ret_from_fork+0x31/0x70 [ 4868.668948][ T253] ret_from_fork_asm+0x1a/0x30 [ 4868.668948][ T253] [ 4868.671099][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4868.671099][ T253] netdev_get_by_index+0x5e/0x80 [ 4868.671099][ T253] fib6_nh_init+0x3d8/0x1580 [ 4868.671099][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4868.671099][ T253] ip6_route_add+0x1c/0x140 [ 4868.671099][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4868.671099][ T253] inet6_addr_add+0x4f8/0xa40 [ 4868.671099][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4868.671099][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4868.671099][ T253] netlink_rcv_skb+0x130/0x360 [ 4868.671099][ T253] netlink_unicast+0x449/0x710 [ 4868.671099][ T253] netlink_sendmsg+0x723/0xbe0 [ 4868.671099][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4868.671099][ T253] ___sys_sendmsg+0xee/0x170 [ 4868.671099][ T253] __sys_sendmsg+0xcd/0x170 [ 4868.671099][ T253] do_syscall_64+0xc6/0x1e0 [ 4868.671099][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4868.671099][ T253] [ 4868.673339][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4868.673339][ T253] netdev_get_by_index+0x5e/0x80 [ 4868.673339][ T253] fib6_nh_init+0x3d8/0x1580 [ 4868.673339][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4868.673339][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4868.673339][ T253] ipv6_add_addr+0x411/0x2000 [ 4868.673339][ T253] inet6_addr_add+0x30e/0xa40 [ 4868.673339][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4868.673339][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4868.673339][ T253] netlink_rcv_skb+0x130/0x360 [ 4868.673339][ T253] netlink_unicast+0x449/0x710 [ 4868.673339][ T253] netlink_sendmsg+0x723/0xbe0 [ 4868.673339][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4868.673339][ T253] ___sys_sendmsg+0xee/0x170 [ 4868.673339][ T253] __sys_sendmsg+0xcd/0x170 [ 4868.673339][ T253] do_syscall_64+0xc6/0x1e0 [ 4868.673339][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4868.673339][ T253] [ 4868.675580][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4868.675580][ T253] netdev_get_by_index+0x5e/0x80 [ 4868.675580][ T253] fib6_nh_init+0x3d8/0x1580 [ 4868.675580][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4868.675580][ T253] ip6_route_add+0x1c/0x140 [ 4868.675580][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4868.675580][ T253] addrconf_add_dev+0xe2/0x170 [ 4868.675580][ T253] inet6_addr_add+0x12f/0xa40 [ 4868.675580][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4868.675580][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4868.675580][ T253] netlink_rcv_skb+0x130/0x360 [ 4868.675580][ T253] netlink_unicast+0x449/0x710 [ 4868.675580][ T253] netlink_sendmsg+0x723/0xbe0 [ 4868.675580][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4868.675580][ T253] ___sys_sendmsg+0xee/0x170 [ 4868.675580][ T253] __sys_sendmsg+0xcd/0x170 [ 4868.675580][ T253] do_syscall_64+0xc6/0x1e0 [ 4868.675580][ T253] [ 4868.677792][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4868.677792][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4868.677792][ T253] ipv6_find_idev+0x102/0x170 [ 4868.677792][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4868.677792][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4868.677792][ T253] netlink_rcv_skb+0x130/0x360 [ 4868.677792][ T253] netlink_unicast+0x449/0x710 [ 4868.677792][ T253] netlink_sendmsg+0x723/0xbe0 [ 4868.677792][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4868.677792][ T253] ___sys_sendmsg+0xee/0x170 [ 4868.677792][ T253] __sys_sendmsg+0xcd/0x170 [ 4868.677792][ T253] do_syscall_64+0xc6/0x1e0 [ 4868.677792][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4868.677792][ T253] [ 4868.679520][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4868.679520][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4868.679520][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4868.679520][ T253] ipv6_find_idev+0x102/0x170 [ 4868.679520][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4868.679520][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4868.679520][ T253] netlink_rcv_skb+0x130/0x360 [ 4868.679520][ T253] netlink_unicast+0x449/0x710 [ 4868.679520][ T253] netlink_sendmsg+0x723/0xbe0 [ 4868.679520][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4868.679520][ T253] ___sys_sendmsg+0xee/0x170 [ 4868.679520][ T253] __sys_sendmsg+0xcd/0x170 [ 4868.679520][ T253] do_syscall_64+0xc6/0x1e0 [ 4868.679520][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4868.679520][ T253] [ 4878.922315][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4878.922829][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4878.922829][ T253] dst_init+0x84/0x4a0 [ 4878.922829][ T253] dst_alloc+0x97/0x150 [ 4878.922829][ T253] ip6_dst_alloc+0x23/0x90 [ 4878.922829][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4878.922829][ T253] ip6_pol_route+0x56f/0x840 [ 4878.922829][ T253] fib6_rule_lookup+0x334/0x630 [ 4878.922829][ T253] ip6_route_output_flags+0x259/0x480 [ 4878.922829][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4878.922829][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4878.922829][ T253] netlink_rcv_skb+0x130/0x360 [ 4878.922829][ T253] netlink_unicast+0x449/0x710 [ 4878.922829][ T253] netlink_sendmsg+0x723/0xbe0 [ 4878.922829][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4878.922829][ T253] ___sys_sendmsg+0xee/0x170 [ 4878.922829][ T253] __sys_sendmsg+0xcd/0x170 [ 4878.922829][ T253] do_syscall_64+0xc6/0x1e0 [ 4878.922829][ T253] [ 4878.925046][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4878.925046][ T253] netdev_get_by_index+0x5e/0x80 [ 4878.925046][ T253] fib6_nh_init+0x3d8/0x1580 [ 4878.925046][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4878.925046][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4878.925046][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4878.925046][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4878.925046][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4878.925046][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4878.925046][ T253] addrconf_dad_begin+0x310/0x670 [ 4878.925046][ T253] addrconf_dad_work+0x10b/0xab0 [ 4878.925046][ T253] process_one_work+0x84d/0x18a0 [ 4878.925046][ T253] worker_thread+0x587/0xd30 [ 4878.925046][ T253] kthread+0x28a/0x350 [ 4878.925046][ T253] ret_from_fork+0x31/0x70 [ 4878.925046][ T253] ret_from_fork_asm+0x1a/0x30 [ 4878.925046][ T253] [ 4878.927205][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4878.927205][ T253] netdev_get_by_index+0x5e/0x80 [ 4878.927205][ T253] fib6_nh_init+0x3d8/0x1580 [ 4878.927205][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4878.927205][ T253] ip6_route_add+0x1c/0x140 [ 4878.927205][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4878.927205][ T253] inet6_addr_add+0x4f8/0xa40 [ 4878.927205][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4878.927205][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4878.927205][ T253] netlink_rcv_skb+0x130/0x360 [ 4878.927205][ T253] netlink_unicast+0x449/0x710 [ 4878.927205][ T253] netlink_sendmsg+0x723/0xbe0 [ 4878.927205][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4878.927205][ T253] ___sys_sendmsg+0xee/0x170 [ 4878.927205][ T253] __sys_sendmsg+0xcd/0x170 [ 4878.927205][ T253] do_syscall_64+0xc6/0x1e0 [ 4878.927205][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4878.927205][ T253] [ 4878.929464][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4878.929464][ T253] netdev_get_by_index+0x5e/0x80 [ 4878.929464][ T253] fib6_nh_init+0x3d8/0x1580 [ 4878.929464][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4878.929464][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4878.929464][ T253] ipv6_add_addr+0x411/0x2000 [ 4878.929464][ T253] inet6_addr_add+0x30e/0xa40 [ 4878.929464][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4878.929464][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4878.929464][ T253] netlink_rcv_skb+0x130/0x360 [ 4878.929464][ T253] netlink_unicast+0x449/0x710 [ 4878.929464][ T253] netlink_sendmsg+0x723/0xbe0 [ 4878.929464][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4878.929464][ T253] ___sys_sendmsg+0xee/0x170 [ 4878.929464][ T253] __sys_sendmsg+0xcd/0x170 [ 4878.929464][ T253] do_syscall_64+0xc6/0x1e0 [ 4878.929464][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4878.929464][ T253] [ 4878.932227][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4878.932227][ T253] netdev_get_by_index+0x5e/0x80 [ 4878.932227][ T253] fib6_nh_init+0x3d8/0x1580 [ 4878.932227][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4878.932227][ T253] ip6_route_add+0x1c/0x140 [ 4878.932227][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4878.932227][ T253] addrconf_add_dev+0xe2/0x170 [ 4878.932227][ T253] inet6_addr_add+0x12f/0xa40 [ 4878.932227][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4878.932227][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4878.932227][ T253] netlink_rcv_skb+0x130/0x360 [ 4878.932227][ T253] netlink_unicast+0x449/0x710 [ 4878.932227][ T253] netlink_sendmsg+0x723/0xbe0 [ 4878.932227][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4878.932227][ T253] ___sys_sendmsg+0xee/0x170 [ 4878.932227][ T253] __sys_sendmsg+0xcd/0x170 [ 4878.932227][ T253] do_syscall_64+0xc6/0x1e0 [ 4878.932227][ T253] [ 4878.934422][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4878.934422][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4878.934422][ T253] ipv6_find_idev+0x102/0x170 [ 4878.934422][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4878.934422][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4878.934422][ T253] netlink_rcv_skb+0x130/0x360 [ 4878.934422][ T253] netlink_unicast+0x449/0x710 [ 4878.934422][ T253] netlink_sendmsg+0x723/0xbe0 [ 4878.934422][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4878.934422][ T253] ___sys_sendmsg+0xee/0x170 [ 4878.934422][ T253] __sys_sendmsg+0xcd/0x170 [ 4878.934422][ T253] do_syscall_64+0xc6/0x1e0 [ 4878.934422][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4878.934422][ T253] [ 4878.936144][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4878.936144][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4878.936144][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4878.936144][ T253] ipv6_find_idev+0x102/0x170 [ 4878.936144][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4878.936144][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4878.936144][ T253] netlink_rcv_skb+0x130/0x360 [ 4878.936144][ T253] netlink_unicast+0x449/0x710 [ 4878.936144][ T253] netlink_sendmsg+0x723/0xbe0 [ 4878.936144][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4878.936144][ T253] ___sys_sendmsg+0xee/0x170 [ 4878.936144][ T253] __sys_sendmsg+0xcd/0x170 [ 4878.936144][ T253] do_syscall_64+0xc6/0x1e0 [ 4878.936144][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4878.936144][ T253] [ 4889.170341][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4889.170814][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4889.170814][ T253] dst_init+0x84/0x4a0 [ 4889.170814][ T253] dst_alloc+0x97/0x150 [ 4889.170814][ T253] ip6_dst_alloc+0x23/0x90 [ 4889.170814][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4889.170814][ T253] ip6_pol_route+0x56f/0x840 [ 4889.170814][ T253] fib6_rule_lookup+0x334/0x630 [ 4889.170814][ T253] ip6_route_output_flags+0x259/0x480 [ 4889.170814][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4889.170814][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4889.170814][ T253] netlink_rcv_skb+0x130/0x360 [ 4889.170814][ T253] netlink_unicast+0x449/0x710 [ 4889.170814][ T253] netlink_sendmsg+0x723/0xbe0 [ 4889.170814][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4889.170814][ T253] ___sys_sendmsg+0xee/0x170 [ 4889.170814][ T253] __sys_sendmsg+0xcd/0x170 [ 4889.170814][ T253] do_syscall_64+0xc6/0x1e0 [ 4889.170814][ T253] [ 4889.173367][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4889.173367][ T253] netdev_get_by_index+0x5e/0x80 [ 4889.173367][ T253] fib6_nh_init+0x3d8/0x1580 [ 4889.173367][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4889.173367][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4889.173367][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4889.173367][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4889.173367][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4889.173367][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4889.173367][ T253] addrconf_dad_begin+0x310/0x670 [ 4889.173367][ T253] addrconf_dad_work+0x10b/0xab0 [ 4889.173367][ T253] process_one_work+0x84d/0x18a0 [ 4889.173367][ T253] worker_thread+0x587/0xd30 [ 4889.173367][ T253] kthread+0x28a/0x350 [ 4889.173367][ T253] ret_from_fork+0x31/0x70 [ 4889.173367][ T253] ret_from_fork_asm+0x1a/0x30 [ 4889.173367][ T253] [ 4889.175828][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4889.175828][ T253] netdev_get_by_index+0x5e/0x80 [ 4889.175828][ T253] fib6_nh_init+0x3d8/0x1580 [ 4889.175828][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4889.175828][ T253] ip6_route_add+0x1c/0x140 [ 4889.175828][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4889.175828][ T253] inet6_addr_add+0x4f8/0xa40 [ 4889.175828][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4889.175828][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4889.175828][ T253] netlink_rcv_skb+0x130/0x360 [ 4889.175828][ T253] netlink_unicast+0x449/0x710 [ 4889.175828][ T253] netlink_sendmsg+0x723/0xbe0 [ 4889.175828][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4889.175828][ T253] ___sys_sendmsg+0xee/0x170 [ 4889.175828][ T253] __sys_sendmsg+0xcd/0x170 [ 4889.175828][ T253] do_syscall_64+0xc6/0x1e0 [ 4889.175828][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4889.175828][ T253] [ 4889.178471][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4889.178471][ T253] netdev_get_by_index+0x5e/0x80 [ 4889.178471][ T253] fib6_nh_init+0x3d8/0x1580 [ 4889.178471][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4889.178471][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4889.178471][ T253] ipv6_add_addr+0x411/0x2000 [ 4889.178471][ T253] inet6_addr_add+0x30e/0xa40 [ 4889.178471][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4889.178471][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4889.178471][ T253] netlink_rcv_skb+0x130/0x360 [ 4889.178471][ T253] netlink_unicast+0x449/0x710 [ 4889.178471][ T253] netlink_sendmsg+0x723/0xbe0 [ 4889.178471][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4889.178471][ T253] ___sys_sendmsg+0xee/0x170 [ 4889.178471][ T253] __sys_sendmsg+0xcd/0x170 [ 4889.178471][ T253] do_syscall_64+0xc6/0x1e0 [ 4889.178471][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4889.178471][ T253] [ 4889.181484][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4889.181484][ T253] netdev_get_by_index+0x5e/0x80 [ 4889.181484][ T253] fib6_nh_init+0x3d8/0x1580 [ 4889.181484][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4889.181484][ T253] ip6_route_add+0x1c/0x140 [ 4889.181484][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4889.181484][ T253] addrconf_add_dev+0xe2/0x170 [ 4889.181484][ T253] inet6_addr_add+0x12f/0xa40 [ 4889.181484][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4889.181484][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4889.181484][ T253] netlink_rcv_skb+0x130/0x360 [ 4889.181484][ T253] netlink_unicast+0x449/0x710 [ 4889.181484][ T253] netlink_sendmsg+0x723/0xbe0 [ 4889.181484][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4889.181484][ T253] ___sys_sendmsg+0xee/0x170 [ 4889.181484][ T253] __sys_sendmsg+0xcd/0x170 [ 4889.181484][ T253] do_syscall_64+0xc6/0x1e0 [ 4889.181484][ T253] [ 4889.184016][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4889.184016][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4889.184016][ T253] ipv6_find_idev+0x102/0x170 [ 4889.184016][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4889.184016][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4889.184016][ T253] netlink_rcv_skb+0x130/0x360 [ 4889.184016][ T253] netlink_unicast+0x449/0x710 [ 4889.184016][ T253] netlink_sendmsg+0x723/0xbe0 [ 4889.184016][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4889.184016][ T253] ___sys_sendmsg+0xee/0x170 [ 4889.184016][ T253] __sys_sendmsg+0xcd/0x170 [ 4889.184016][ T253] do_syscall_64+0xc6/0x1e0 [ 4889.184016][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4889.184016][ T253] [ 4889.185958][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4889.185958][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4889.185958][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4889.185958][ T253] ipv6_find_idev+0x102/0x170 [ 4889.185958][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4889.185958][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4889.185958][ T253] netlink_rcv_skb+0x130/0x360 [ 4889.185958][ T253] netlink_unicast+0x449/0x710 [ 4889.185958][ T253] netlink_sendmsg+0x723/0xbe0 [ 4889.185958][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4889.185958][ T253] ___sys_sendmsg+0xee/0x170 [ 4889.185958][ T253] __sys_sendmsg+0xcd/0x170 [ 4889.185958][ T253] do_syscall_64+0xc6/0x1e0 [ 4889.185958][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4889.185958][ T253] [ 4899.426343][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4899.426837][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4899.426837][ T253] dst_init+0x84/0x4a0 [ 4899.426837][ T253] dst_alloc+0x97/0x150 [ 4899.426837][ T253] ip6_dst_alloc+0x23/0x90 [ 4899.426837][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4899.426837][ T253] ip6_pol_route+0x56f/0x840 [ 4899.426837][ T253] fib6_rule_lookup+0x334/0x630 [ 4899.426837][ T253] ip6_route_output_flags+0x259/0x480 [ 4899.426837][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4899.426837][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4899.426837][ T253] netlink_rcv_skb+0x130/0x360 [ 4899.426837][ T253] netlink_unicast+0x449/0x710 [ 4899.426837][ T253] netlink_sendmsg+0x723/0xbe0 [ 4899.426837][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4899.426837][ T253] ___sys_sendmsg+0xee/0x170 [ 4899.426837][ T253] __sys_sendmsg+0xcd/0x170 [ 4899.426837][ T253] do_syscall_64+0xc6/0x1e0 [ 4899.426837][ T253] [ 4899.429236][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4899.429236][ T253] netdev_get_by_index+0x5e/0x80 [ 4899.429236][ T253] fib6_nh_init+0x3d8/0x1580 [ 4899.429236][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4899.429236][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4899.429236][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4899.429236][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4899.429236][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4899.429236][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4899.429236][ T253] addrconf_dad_begin+0x310/0x670 [ 4899.429236][ T253] addrconf_dad_work+0x10b/0xab0 [ 4899.429236][ T253] process_one_work+0x84d/0x18a0 [ 4899.429236][ T253] worker_thread+0x587/0xd30 [ 4899.429236][ T253] kthread+0x28a/0x350 [ 4899.429236][ T253] ret_from_fork+0x31/0x70 [ 4899.429236][ T253] ret_from_fork_asm+0x1a/0x30 [ 4899.429236][ T253] [ 4899.431725][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4899.431725][ T253] netdev_get_by_index+0x5e/0x80 [ 4899.431725][ T253] fib6_nh_init+0x3d8/0x1580 [ 4899.431725][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4899.431725][ T253] ip6_route_add+0x1c/0x140 [ 4899.431725][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4899.431725][ T253] inet6_addr_add+0x4f8/0xa40 [ 4899.431725][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4899.431725][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4899.431725][ T253] netlink_rcv_skb+0x130/0x360 [ 4899.431725][ T253] netlink_unicast+0x449/0x710 [ 4899.431725][ T253] netlink_sendmsg+0x723/0xbe0 [ 4899.431725][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4899.431725][ T253] ___sys_sendmsg+0xee/0x170 [ 4899.431725][ T253] __sys_sendmsg+0xcd/0x170 [ 4899.431725][ T253] do_syscall_64+0xc6/0x1e0 [ 4899.431725][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4899.431725][ T253] [ 4899.434301][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4899.434301][ T253] netdev_get_by_index+0x5e/0x80 [ 4899.434301][ T253] fib6_nh_init+0x3d8/0x1580 [ 4899.434301][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4899.434301][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4899.434301][ T253] ipv6_add_addr+0x411/0x2000 [ 4899.434301][ T253] inet6_addr_add+0x30e/0xa40 [ 4899.434301][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4899.434301][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4899.434301][ T253] netlink_rcv_skb+0x130/0x360 [ 4899.434301][ T253] netlink_unicast+0x449/0x710 [ 4899.434301][ T253] netlink_sendmsg+0x723/0xbe0 [ 4899.434301][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4899.434301][ T253] ___sys_sendmsg+0xee/0x170 [ 4899.434301][ T253] __sys_sendmsg+0xcd/0x170 [ 4899.434301][ T253] do_syscall_64+0xc6/0x1e0 [ 4899.434301][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4899.434301][ T253] [ 4899.436919][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4899.436919][ T253] netdev_get_by_index+0x5e/0x80 [ 4899.436919][ T253] fib6_nh_init+0x3d8/0x1580 [ 4899.436919][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4899.436919][ T253] ip6_route_add+0x1c/0x140 [ 4899.436919][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4899.436919][ T253] addrconf_add_dev+0xe2/0x170 [ 4899.436919][ T253] inet6_addr_add+0x12f/0xa40 [ 4899.436919][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4899.436919][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4899.436919][ T253] netlink_rcv_skb+0x130/0x360 [ 4899.436919][ T253] netlink_unicast+0x449/0x710 [ 4899.436919][ T253] netlink_sendmsg+0x723/0xbe0 [ 4899.436919][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4899.436919][ T253] ___sys_sendmsg+0xee/0x170 [ 4899.436919][ T253] __sys_sendmsg+0xcd/0x170 [ 4899.436919][ T253] do_syscall_64+0xc6/0x1e0 [ 4899.436919][ T253] [ 4899.439426][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4899.439426][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4899.439426][ T253] ipv6_find_idev+0x102/0x170 [ 4899.439426][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4899.439426][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4899.439426][ T253] netlink_rcv_skb+0x130/0x360 [ 4899.439426][ T253] netlink_unicast+0x449/0x710 [ 4899.439426][ T253] netlink_sendmsg+0x723/0xbe0 [ 4899.439426][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4899.439426][ T253] ___sys_sendmsg+0xee/0x170 [ 4899.439426][ T253] __sys_sendmsg+0xcd/0x170 [ 4899.439426][ T253] do_syscall_64+0xc6/0x1e0 [ 4899.439426][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4899.439426][ T253] [ 4899.441430][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4899.441430][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4899.441430][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4899.441430][ T253] ipv6_find_idev+0x102/0x170 [ 4899.441430][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4899.441430][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4899.441430][ T253] netlink_rcv_skb+0x130/0x360 [ 4899.441430][ T253] netlink_unicast+0x449/0x710 [ 4899.441430][ T253] netlink_sendmsg+0x723/0xbe0 [ 4899.441430][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4899.441430][ T253] ___sys_sendmsg+0xee/0x170 [ 4899.441430][ T253] __sys_sendmsg+0xcd/0x170 [ 4899.441430][ T253] do_syscall_64+0xc6/0x1e0 [ 4899.441430][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4899.441430][ T253] [ 4909.682367][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4909.682807][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4909.682807][ T253] dst_init+0x84/0x4a0 [ 4909.682807][ T253] dst_alloc+0x97/0x150 [ 4909.682807][ T253] ip6_dst_alloc+0x23/0x90 [ 4909.682807][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4909.682807][ T253] ip6_pol_route+0x56f/0x840 [ 4909.682807][ T253] fib6_rule_lookup+0x334/0x630 [ 4909.682807][ T253] ip6_route_output_flags+0x259/0x480 [ 4909.682807][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4909.682807][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4909.682807][ T253] netlink_rcv_skb+0x130/0x360 [ 4909.682807][ T253] netlink_unicast+0x449/0x710 [ 4909.682807][ T253] netlink_sendmsg+0x723/0xbe0 [ 4909.682807][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4909.682807][ T253] ___sys_sendmsg+0xee/0x170 [ 4909.682807][ T253] __sys_sendmsg+0xcd/0x170 [ 4909.682807][ T253] do_syscall_64+0xc6/0x1e0 [ 4909.682807][ T253] [ 4909.685064][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4909.685064][ T253] netdev_get_by_index+0x5e/0x80 [ 4909.685064][ T253] fib6_nh_init+0x3d8/0x1580 [ 4909.685064][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4909.685064][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4909.685064][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4909.685064][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4909.685064][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4909.685064][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4909.685064][ T253] addrconf_dad_begin+0x310/0x670 [ 4909.685064][ T253] addrconf_dad_work+0x10b/0xab0 [ 4909.685064][ T253] process_one_work+0x84d/0x18a0 [ 4909.685064][ T253] worker_thread+0x587/0xd30 [ 4909.685064][ T253] kthread+0x28a/0x350 [ 4909.685064][ T253] ret_from_fork+0x31/0x70 [ 4909.685064][ T253] ret_from_fork_asm+0x1a/0x30 [ 4909.685064][ T253] [ 4909.687286][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4909.687286][ T253] netdev_get_by_index+0x5e/0x80 [ 4909.687286][ T253] fib6_nh_init+0x3d8/0x1580 [ 4909.687286][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4909.687286][ T253] ip6_route_add+0x1c/0x140 [ 4909.687286][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4909.687286][ T253] inet6_addr_add+0x4f8/0xa40 [ 4909.687286][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4909.687286][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4909.687286][ T253] netlink_rcv_skb+0x130/0x360 [ 4909.687286][ T253] netlink_unicast+0x449/0x710 [ 4909.687286][ T253] netlink_sendmsg+0x723/0xbe0 [ 4909.687286][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4909.687286][ T253] ___sys_sendmsg+0xee/0x170 [ 4909.687286][ T253] __sys_sendmsg+0xcd/0x170 [ 4909.687286][ T253] do_syscall_64+0xc6/0x1e0 [ 4909.687286][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4909.687286][ T253] [ 4909.689548][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4909.689548][ T253] netdev_get_by_index+0x5e/0x80 [ 4909.689548][ T253] fib6_nh_init+0x3d8/0x1580 [ 4909.689548][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4909.689548][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4909.689548][ T253] ipv6_add_addr+0x411/0x2000 [ 4909.689548][ T253] inet6_addr_add+0x30e/0xa40 [ 4909.689548][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4909.689548][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4909.689548][ T253] netlink_rcv_skb+0x130/0x360 [ 4909.689548][ T253] netlink_unicast+0x449/0x710 [ 4909.689548][ T253] netlink_sendmsg+0x723/0xbe0 [ 4909.689548][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4909.689548][ T253] ___sys_sendmsg+0xee/0x170 [ 4909.689548][ T253] __sys_sendmsg+0xcd/0x170 [ 4909.689548][ T253] do_syscall_64+0xc6/0x1e0 [ 4909.689548][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4909.689548][ T253] [ 4909.691819][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4909.691819][ T253] netdev_get_by_index+0x5e/0x80 [ 4909.691819][ T253] fib6_nh_init+0x3d8/0x1580 [ 4909.691819][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4909.691819][ T253] ip6_route_add+0x1c/0x140 [ 4909.691819][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4909.691819][ T253] addrconf_add_dev+0xe2/0x170 [ 4909.691819][ T253] inet6_addr_add+0x12f/0xa40 [ 4909.691819][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4909.691819][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4909.691819][ T253] netlink_rcv_skb+0x130/0x360 [ 4909.691819][ T253] netlink_unicast+0x449/0x710 [ 4909.691819][ T253] netlink_sendmsg+0x723/0xbe0 [ 4909.691819][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4909.691819][ T253] ___sys_sendmsg+0xee/0x170 [ 4909.691819][ T253] __sys_sendmsg+0xcd/0x170 [ 4909.691819][ T253] do_syscall_64+0xc6/0x1e0 [ 4909.691819][ T253] [ 4909.694060][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4909.694060][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4909.694060][ T253] ipv6_find_idev+0x102/0x170 [ 4909.694060][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4909.694060][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4909.694060][ T253] netlink_rcv_skb+0x130/0x360 [ 4909.694060][ T253] netlink_unicast+0x449/0x710 [ 4909.694060][ T253] netlink_sendmsg+0x723/0xbe0 [ 4909.694060][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4909.694060][ T253] ___sys_sendmsg+0xee/0x170 [ 4909.694060][ T253] __sys_sendmsg+0xcd/0x170 [ 4909.694060][ T253] do_syscall_64+0xc6/0x1e0 [ 4909.694060][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4909.694060][ T253] [ 4909.695819][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4909.695819][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4909.695819][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4909.695819][ T253] ipv6_find_idev+0x102/0x170 [ 4909.695819][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4909.695819][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4909.695819][ T253] netlink_rcv_skb+0x130/0x360 [ 4909.695819][ T253] netlink_unicast+0x449/0x710 [ 4909.695819][ T253] netlink_sendmsg+0x723/0xbe0 [ 4909.695819][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4909.695819][ T253] ___sys_sendmsg+0xee/0x170 [ 4909.695819][ T253] __sys_sendmsg+0xcd/0x170 [ 4909.695819][ T253] do_syscall_64+0xc6/0x1e0 [ 4909.695819][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4909.695819][ T253] [ 4919.938265][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4919.938759][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4919.938759][ T253] dst_init+0x84/0x4a0 [ 4919.938759][ T253] dst_alloc+0x97/0x150 [ 4919.938759][ T253] ip6_dst_alloc+0x23/0x90 [ 4919.938759][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4919.938759][ T253] ip6_pol_route+0x56f/0x840 [ 4919.938759][ T253] fib6_rule_lookup+0x334/0x630 [ 4919.938759][ T253] ip6_route_output_flags+0x259/0x480 [ 4919.938759][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4919.938759][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4919.938759][ T253] netlink_rcv_skb+0x130/0x360 [ 4919.938759][ T253] netlink_unicast+0x449/0x710 [ 4919.938759][ T253] netlink_sendmsg+0x723/0xbe0 [ 4919.938759][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4919.938759][ T253] ___sys_sendmsg+0xee/0x170 [ 4919.938759][ T253] __sys_sendmsg+0xcd/0x170 [ 4919.938759][ T253] do_syscall_64+0xc6/0x1e0 [ 4919.938759][ T253] [ 4919.941008][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4919.941008][ T253] netdev_get_by_index+0x5e/0x80 [ 4919.941008][ T253] fib6_nh_init+0x3d8/0x1580 [ 4919.941008][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4919.941008][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4919.941008][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4919.941008][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4919.941008][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4919.941008][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4919.941008][ T253] addrconf_dad_begin+0x310/0x670 [ 4919.941008][ T253] addrconf_dad_work+0x10b/0xab0 [ 4919.941008][ T253] process_one_work+0x84d/0x18a0 [ 4919.941008][ T253] worker_thread+0x587/0xd30 [ 4919.941008][ T253] kthread+0x28a/0x350 [ 4919.941008][ T253] ret_from_fork+0x31/0x70 [ 4919.941008][ T253] ret_from_fork_asm+0x1a/0x30 [ 4919.941008][ T253] [ 4919.943189][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4919.943189][ T253] netdev_get_by_index+0x5e/0x80 [ 4919.943189][ T253] fib6_nh_init+0x3d8/0x1580 [ 4919.943189][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4919.943189][ T253] ip6_route_add+0x1c/0x140 [ 4919.943189][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4919.943189][ T253] inet6_addr_add+0x4f8/0xa40 [ 4919.943189][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4919.943189][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4919.943189][ T253] netlink_rcv_skb+0x130/0x360 [ 4919.943189][ T253] netlink_unicast+0x449/0x710 [ 4919.943189][ T253] netlink_sendmsg+0x723/0xbe0 [ 4919.943189][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4919.943189][ T253] ___sys_sendmsg+0xee/0x170 [ 4919.943189][ T253] __sys_sendmsg+0xcd/0x170 [ 4919.943189][ T253] do_syscall_64+0xc6/0x1e0 [ 4919.943189][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4919.943189][ T253] [ 4919.945462][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4919.945462][ T253] netdev_get_by_index+0x5e/0x80 [ 4919.945462][ T253] fib6_nh_init+0x3d8/0x1580 [ 4919.945462][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4919.945462][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4919.945462][ T253] ipv6_add_addr+0x411/0x2000 [ 4919.945462][ T253] inet6_addr_add+0x30e/0xa40 [ 4919.945462][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4919.945462][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4919.945462][ T253] netlink_rcv_skb+0x130/0x360 [ 4919.945462][ T253] netlink_unicast+0x449/0x710 [ 4919.945462][ T253] netlink_sendmsg+0x723/0xbe0 [ 4919.945462][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4919.945462][ T253] ___sys_sendmsg+0xee/0x170 [ 4919.945462][ T253] __sys_sendmsg+0xcd/0x170 [ 4919.945462][ T253] do_syscall_64+0xc6/0x1e0 [ 4919.945462][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4919.945462][ T253] [ 4919.947751][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4919.947751][ T253] netdev_get_by_index+0x5e/0x80 [ 4919.947751][ T253] fib6_nh_init+0x3d8/0x1580 [ 4919.947751][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4919.947751][ T253] ip6_route_add+0x1c/0x140 [ 4919.947751][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4919.947751][ T253] addrconf_add_dev+0xe2/0x170 [ 4919.947751][ T253] inet6_addr_add+0x12f/0xa40 [ 4919.947751][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4919.947751][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4919.947751][ T253] netlink_rcv_skb+0x130/0x360 [ 4919.947751][ T253] netlink_unicast+0x449/0x710 [ 4919.947751][ T253] netlink_sendmsg+0x723/0xbe0 [ 4919.947751][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4919.947751][ T253] ___sys_sendmsg+0xee/0x170 [ 4919.947751][ T253] __sys_sendmsg+0xcd/0x170 [ 4919.947751][ T253] do_syscall_64+0xc6/0x1e0 [ 4919.947751][ T253] [ 4919.949982][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4919.949982][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4919.949982][ T253] ipv6_find_idev+0x102/0x170 [ 4919.949982][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4919.949982][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4919.949982][ T253] netlink_rcv_skb+0x130/0x360 [ 4919.949982][ T253] netlink_unicast+0x449/0x710 [ 4919.949982][ T253] netlink_sendmsg+0x723/0xbe0 [ 4919.949982][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4919.949982][ T253] ___sys_sendmsg+0xee/0x170 [ 4919.949982][ T253] __sys_sendmsg+0xcd/0x170 [ 4919.949982][ T253] do_syscall_64+0xc6/0x1e0 [ 4919.949982][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4919.949982][ T253] [ 4919.951742][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4919.951742][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4919.951742][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4919.951742][ T253] ipv6_find_idev+0x102/0x170 [ 4919.951742][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4919.951742][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4919.951742][ T253] netlink_rcv_skb+0x130/0x360 [ 4919.951742][ T253] netlink_unicast+0x449/0x710 [ 4919.951742][ T253] netlink_sendmsg+0x723/0xbe0 [ 4919.951742][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4919.951742][ T253] ___sys_sendmsg+0xee/0x170 [ 4919.951742][ T253] __sys_sendmsg+0xcd/0x170 [ 4919.951742][ T253] do_syscall_64+0xc6/0x1e0 [ 4919.951742][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4919.951742][ T253] [ 4930.194305][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4930.194722][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4930.194722][ T253] dst_init+0x84/0x4a0 [ 4930.194722][ T253] dst_alloc+0x97/0x150 [ 4930.194722][ T253] ip6_dst_alloc+0x23/0x90 [ 4930.194722][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4930.194722][ T253] ip6_pol_route+0x56f/0x840 [ 4930.194722][ T253] fib6_rule_lookup+0x334/0x630 [ 4930.194722][ T253] ip6_route_output_flags+0x259/0x480 [ 4930.194722][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4930.194722][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4930.194722][ T253] netlink_rcv_skb+0x130/0x360 [ 4930.194722][ T253] netlink_unicast+0x449/0x710 [ 4930.194722][ T253] netlink_sendmsg+0x723/0xbe0 [ 4930.194722][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4930.194722][ T253] ___sys_sendmsg+0xee/0x170 [ 4930.194722][ T253] __sys_sendmsg+0xcd/0x170 [ 4930.194722][ T253] do_syscall_64+0xc6/0x1e0 [ 4930.194722][ T253] [ 4930.196927][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4930.196927][ T253] netdev_get_by_index+0x5e/0x80 [ 4930.196927][ T253] fib6_nh_init+0x3d8/0x1580 [ 4930.196927][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4930.196927][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4930.196927][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4930.196927][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4930.196927][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4930.196927][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4930.196927][ T253] addrconf_dad_begin+0x310/0x670 [ 4930.196927][ T253] addrconf_dad_work+0x10b/0xab0 [ 4930.196927][ T253] process_one_work+0x84d/0x18a0 [ 4930.196927][ T253] worker_thread+0x587/0xd30 [ 4930.196927][ T253] kthread+0x28a/0x350 [ 4930.196927][ T253] ret_from_fork+0x31/0x70 [ 4930.196927][ T253] ret_from_fork_asm+0x1a/0x30 [ 4930.196927][ T253] [ 4930.199067][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4930.199067][ T253] netdev_get_by_index+0x5e/0x80 [ 4930.199067][ T253] fib6_nh_init+0x3d8/0x1580 [ 4930.199067][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4930.199067][ T253] ip6_route_add+0x1c/0x140 [ 4930.199067][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4930.199067][ T253] inet6_addr_add+0x4f8/0xa40 [ 4930.199067][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4930.199067][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4930.199067][ T253] netlink_rcv_skb+0x130/0x360 [ 4930.199067][ T253] netlink_unicast+0x449/0x710 [ 4930.199067][ T253] netlink_sendmsg+0x723/0xbe0 [ 4930.199067][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4930.199067][ T253] ___sys_sendmsg+0xee/0x170 [ 4930.199067][ T253] __sys_sendmsg+0xcd/0x170 [ 4930.199067][ T253] do_syscall_64+0xc6/0x1e0 [ 4930.199067][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4930.199067][ T253] [ 4930.201305][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4930.201305][ T253] netdev_get_by_index+0x5e/0x80 [ 4930.201305][ T253] fib6_nh_init+0x3d8/0x1580 [ 4930.201305][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4930.201305][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4930.201305][ T253] ipv6_add_addr+0x411/0x2000 [ 4930.201305][ T253] inet6_addr_add+0x30e/0xa40 [ 4930.201305][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4930.201305][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4930.201305][ T253] netlink_rcv_skb+0x130/0x360 [ 4930.201305][ T253] netlink_unicast+0x449/0x710 [ 4930.201305][ T253] netlink_sendmsg+0x723/0xbe0 [ 4930.201305][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4930.201305][ T253] ___sys_sendmsg+0xee/0x170 [ 4930.201305][ T253] __sys_sendmsg+0xcd/0x170 [ 4930.201305][ T253] do_syscall_64+0xc6/0x1e0 [ 4930.201305][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4930.201305][ T253] [ 4930.203543][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4930.203543][ T253] netdev_get_by_index+0x5e/0x80 [ 4930.203543][ T253] fib6_nh_init+0x3d8/0x1580 [ 4930.203543][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4930.203543][ T253] ip6_route_add+0x1c/0x140 [ 4930.203543][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4930.203543][ T253] addrconf_add_dev+0xe2/0x170 [ 4930.203543][ T253] inet6_addr_add+0x12f/0xa40 [ 4930.203543][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4930.203543][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4930.203543][ T253] netlink_rcv_skb+0x130/0x360 [ 4930.203543][ T253] netlink_unicast+0x449/0x710 [ 4930.203543][ T253] netlink_sendmsg+0x723/0xbe0 [ 4930.203543][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4930.203543][ T253] ___sys_sendmsg+0xee/0x170 [ 4930.203543][ T253] __sys_sendmsg+0xcd/0x170 [ 4930.203543][ T253] do_syscall_64+0xc6/0x1e0 [ 4930.203543][ T253] [ 4930.205747][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4930.205747][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4930.205747][ T253] ipv6_find_idev+0x102/0x170 [ 4930.205747][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4930.205747][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4930.205747][ T253] netlink_rcv_skb+0x130/0x360 [ 4930.205747][ T253] netlink_unicast+0x449/0x710 [ 4930.205747][ T253] netlink_sendmsg+0x723/0xbe0 [ 4930.205747][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4930.205747][ T253] ___sys_sendmsg+0xee/0x170 [ 4930.205747][ T253] __sys_sendmsg+0xcd/0x170 [ 4930.205747][ T253] do_syscall_64+0xc6/0x1e0 [ 4930.205747][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4930.205747][ T253] [ 4930.207480][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4930.207480][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4930.207480][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4930.207480][ T253] ipv6_find_idev+0x102/0x170 [ 4930.207480][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4930.207480][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4930.207480][ T253] netlink_rcv_skb+0x130/0x360 [ 4930.207480][ T253] netlink_unicast+0x449/0x710 [ 4930.207480][ T253] netlink_sendmsg+0x723/0xbe0 [ 4930.207480][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4930.207480][ T253] ___sys_sendmsg+0xee/0x170 [ 4930.207480][ T253] __sys_sendmsg+0xcd/0x170 [ 4930.207480][ T253] do_syscall_64+0xc6/0x1e0 [ 4930.207480][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4930.207480][ T253] [ 4940.298301][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4940.298716][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4940.298716][ T253] dst_init+0x84/0x4a0 [ 4940.298716][ T253] dst_alloc+0x97/0x150 [ 4940.298716][ T253] ip6_dst_alloc+0x23/0x90 [ 4940.298716][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4940.298716][ T253] ip6_pol_route+0x56f/0x840 [ 4940.298716][ T253] fib6_rule_lookup+0x334/0x630 [ 4940.298716][ T253] ip6_route_output_flags+0x259/0x480 [ 4940.298716][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4940.298716][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4940.298716][ T253] netlink_rcv_skb+0x130/0x360 [ 4940.298716][ T253] netlink_unicast+0x449/0x710 [ 4940.298716][ T253] netlink_sendmsg+0x723/0xbe0 [ 4940.298716][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4940.298716][ T253] ___sys_sendmsg+0xee/0x170 [ 4940.298716][ T253] __sys_sendmsg+0xcd/0x170 [ 4940.298716][ T253] do_syscall_64+0xc6/0x1e0 [ 4940.298716][ T253] [ 4940.300921][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4940.300921][ T253] netdev_get_by_index+0x5e/0x80 [ 4940.300921][ T253] fib6_nh_init+0x3d8/0x1580 [ 4940.300921][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4940.300921][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4940.300921][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4940.300921][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4940.300921][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4940.300921][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4940.300921][ T253] addrconf_dad_begin+0x310/0x670 [ 4940.300921][ T253] addrconf_dad_work+0x10b/0xab0 [ 4940.300921][ T253] process_one_work+0x84d/0x18a0 [ 4940.300921][ T253] worker_thread+0x587/0xd30 [ 4940.300921][ T253] kthread+0x28a/0x350 [ 4940.300921][ T253] ret_from_fork+0x31/0x70 [ 4940.300921][ T253] ret_from_fork_asm+0x1a/0x30 [ 4940.300921][ T253] [ 4940.303068][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4940.303068][ T253] netdev_get_by_index+0x5e/0x80 [ 4940.303068][ T253] fib6_nh_init+0x3d8/0x1580 [ 4940.303068][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4940.303068][ T253] ip6_route_add+0x1c/0x140 [ 4940.303068][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4940.303068][ T253] inet6_addr_add+0x4f8/0xa40 [ 4940.303068][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4940.303068][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4940.303068][ T253] netlink_rcv_skb+0x130/0x360 [ 4940.303068][ T253] netlink_unicast+0x449/0x710 [ 4940.303068][ T253] netlink_sendmsg+0x723/0xbe0 [ 4940.303068][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4940.303068][ T253] ___sys_sendmsg+0xee/0x170 [ 4940.303068][ T253] __sys_sendmsg+0xcd/0x170 [ 4940.303068][ T253] do_syscall_64+0xc6/0x1e0 [ 4940.303068][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4940.303068][ T253] [ 4940.305315][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4940.305315][ T253] netdev_get_by_index+0x5e/0x80 [ 4940.305315][ T253] fib6_nh_init+0x3d8/0x1580 [ 4940.305315][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4940.305315][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4940.305315][ T253] ipv6_add_addr+0x411/0x2000 [ 4940.305315][ T253] inet6_addr_add+0x30e/0xa40 [ 4940.305315][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4940.305315][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4940.305315][ T253] netlink_rcv_skb+0x130/0x360 [ 4940.305315][ T253] netlink_unicast+0x449/0x710 [ 4940.305315][ T253] netlink_sendmsg+0x723/0xbe0 [ 4940.305315][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4940.305315][ T253] ___sys_sendmsg+0xee/0x170 [ 4940.305315][ T253] __sys_sendmsg+0xcd/0x170 [ 4940.305315][ T253] do_syscall_64+0xc6/0x1e0 [ 4940.305315][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4940.305315][ T253] [ 4940.307569][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4940.307569][ T253] netdev_get_by_index+0x5e/0x80 [ 4940.307569][ T253] fib6_nh_init+0x3d8/0x1580 [ 4940.307569][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4940.307569][ T253] ip6_route_add+0x1c/0x140 [ 4940.307569][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4940.307569][ T253] addrconf_add_dev+0xe2/0x170 [ 4940.307569][ T253] inet6_addr_add+0x12f/0xa40 [ 4940.307569][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4940.307569][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4940.307569][ T253] netlink_rcv_skb+0x130/0x360 [ 4940.307569][ T253] netlink_unicast+0x449/0x710 [ 4940.307569][ T253] netlink_sendmsg+0x723/0xbe0 [ 4940.307569][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4940.307569][ T253] ___sys_sendmsg+0xee/0x170 [ 4940.307569][ T253] __sys_sendmsg+0xcd/0x170 [ 4940.307569][ T253] do_syscall_64+0xc6/0x1e0 [ 4940.307569][ T253] [ 4940.309777][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4940.309777][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4940.309777][ T253] ipv6_find_idev+0x102/0x170 [ 4940.309777][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4940.309777][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4940.309777][ T253] netlink_rcv_skb+0x130/0x360 [ 4940.309777][ T253] netlink_unicast+0x449/0x710 [ 4940.309777][ T253] netlink_sendmsg+0x723/0xbe0 [ 4940.309777][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4940.309777][ T253] ___sys_sendmsg+0xee/0x170 [ 4940.309777][ T253] __sys_sendmsg+0xcd/0x170 [ 4940.309777][ T253] do_syscall_64+0xc6/0x1e0 [ 4940.309777][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4940.309777][ T253] [ 4940.311499][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4940.311499][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4940.311499][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4940.311499][ T253] ipv6_find_idev+0x102/0x170 [ 4940.311499][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4940.311499][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4940.311499][ T253] netlink_rcv_skb+0x130/0x360 [ 4940.311499][ T253] netlink_unicast+0x449/0x710 [ 4940.311499][ T253] netlink_sendmsg+0x723/0xbe0 [ 4940.311499][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4940.311499][ T253] ___sys_sendmsg+0xee/0x170 [ 4940.311499][ T253] __sys_sendmsg+0xcd/0x170 [ 4940.311499][ T253] do_syscall_64+0xc6/0x1e0 [ 4940.311499][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4940.311499][ T253] [ 4950.554381][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4950.554869][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4950.554869][ T253] dst_init+0x84/0x4a0 [ 4950.554869][ T253] dst_alloc+0x97/0x150 [ 4950.554869][ T253] ip6_dst_alloc+0x23/0x90 [ 4950.554869][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4950.554869][ T253] ip6_pol_route+0x56f/0x840 [ 4950.554869][ T253] fib6_rule_lookup+0x334/0x630 [ 4950.554869][ T253] ip6_route_output_flags+0x259/0x480 [ 4950.554869][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4950.554869][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4950.554869][ T253] netlink_rcv_skb+0x130/0x360 [ 4950.554869][ T253] netlink_unicast+0x449/0x710 [ 4950.554869][ T253] netlink_sendmsg+0x723/0xbe0 [ 4950.554869][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4950.554869][ T253] ___sys_sendmsg+0xee/0x170 [ 4950.554869][ T253] __sys_sendmsg+0xcd/0x170 [ 4950.554869][ T253] do_syscall_64+0xc6/0x1e0 [ 4950.554869][ T253] [ 4950.557083][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4950.557083][ T253] netdev_get_by_index+0x5e/0x80 [ 4950.557083][ T253] fib6_nh_init+0x3d8/0x1580 [ 4950.557083][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4950.557083][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4950.557083][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4950.557083][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4950.557083][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4950.557083][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4950.557083][ T253] addrconf_dad_begin+0x310/0x670 [ 4950.557083][ T253] addrconf_dad_work+0x10b/0xab0 [ 4950.557083][ T253] process_one_work+0x84d/0x18a0 [ 4950.557083][ T253] worker_thread+0x587/0xd30 [ 4950.557083][ T253] kthread+0x28a/0x350 [ 4950.557083][ T253] ret_from_fork+0x31/0x70 [ 4950.557083][ T253] ret_from_fork_asm+0x1a/0x30 [ 4950.557083][ T253] [ 4950.559223][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4950.559223][ T253] netdev_get_by_index+0x5e/0x80 [ 4950.559223][ T253] fib6_nh_init+0x3d8/0x1580 [ 4950.559223][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4950.559223][ T253] ip6_route_add+0x1c/0x140 [ 4950.559223][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4950.559223][ T253] inet6_addr_add+0x4f8/0xa40 [ 4950.559223][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4950.559223][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4950.559223][ T253] netlink_rcv_skb+0x130/0x360 [ 4950.559223][ T253] netlink_unicast+0x449/0x710 [ 4950.559223][ T253] netlink_sendmsg+0x723/0xbe0 [ 4950.559223][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4950.559223][ T253] ___sys_sendmsg+0xee/0x170 [ 4950.559223][ T253] __sys_sendmsg+0xcd/0x170 [ 4950.559223][ T253] do_syscall_64+0xc6/0x1e0 [ 4950.559223][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4950.559223][ T253] [ 4950.561472][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4950.561472][ T253] netdev_get_by_index+0x5e/0x80 [ 4950.561472][ T253] fib6_nh_init+0x3d8/0x1580 [ 4950.561472][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4950.561472][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4950.561472][ T253] ipv6_add_addr+0x411/0x2000 [ 4950.561472][ T253] inet6_addr_add+0x30e/0xa40 [ 4950.561472][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4950.561472][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4950.561472][ T253] netlink_rcv_skb+0x130/0x360 [ 4950.561472][ T253] netlink_unicast+0x449/0x710 [ 4950.561472][ T253] netlink_sendmsg+0x723/0xbe0 [ 4950.561472][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4950.561472][ T253] ___sys_sendmsg+0xee/0x170 [ 4950.561472][ T253] __sys_sendmsg+0xcd/0x170 [ 4950.561472][ T253] do_syscall_64+0xc6/0x1e0 [ 4950.561472][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4950.561472][ T253] [ 4950.563722][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4950.563722][ T253] netdev_get_by_index+0x5e/0x80 [ 4950.563722][ T253] fib6_nh_init+0x3d8/0x1580 [ 4950.563722][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4950.563722][ T253] ip6_route_add+0x1c/0x140 [ 4950.563722][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4950.563722][ T253] addrconf_add_dev+0xe2/0x170 [ 4950.563722][ T253] inet6_addr_add+0x12f/0xa40 [ 4950.563722][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4950.563722][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4950.563722][ T253] netlink_rcv_skb+0x130/0x360 [ 4950.563722][ T253] netlink_unicast+0x449/0x710 [ 4950.563722][ T253] netlink_sendmsg+0x723/0xbe0 [ 4950.563722][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4950.563722][ T253] ___sys_sendmsg+0xee/0x170 [ 4950.563722][ T253] __sys_sendmsg+0xcd/0x170 [ 4950.563722][ T253] do_syscall_64+0xc6/0x1e0 [ 4950.563722][ T253] [ 4950.565939][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4950.565939][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4950.565939][ T253] ipv6_find_idev+0x102/0x170 [ 4950.565939][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4950.565939][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4950.565939][ T253] netlink_rcv_skb+0x130/0x360 [ 4950.565939][ T253] netlink_unicast+0x449/0x710 [ 4950.565939][ T253] netlink_sendmsg+0x723/0xbe0 [ 4950.565939][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4950.565939][ T253] ___sys_sendmsg+0xee/0x170 [ 4950.565939][ T253] __sys_sendmsg+0xcd/0x170 [ 4950.565939][ T253] do_syscall_64+0xc6/0x1e0 [ 4950.565939][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4950.565939][ T253] [ 4950.567676][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4950.567676][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4950.567676][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4950.567676][ T253] ipv6_find_idev+0x102/0x170 [ 4950.567676][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4950.567676][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4950.567676][ T253] netlink_rcv_skb+0x130/0x360 [ 4950.567676][ T253] netlink_unicast+0x449/0x710 [ 4950.567676][ T253] netlink_sendmsg+0x723/0xbe0 [ 4950.567676][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4950.567676][ T253] ___sys_sendmsg+0xee/0x170 [ 4950.567676][ T253] __sys_sendmsg+0xcd/0x170 [ 4950.567676][ T253] do_syscall_64+0xc6/0x1e0 [ 4950.567676][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4950.567676][ T253] [ 4960.594303][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4960.594717][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4960.594717][ T253] dst_init+0x84/0x4a0 [ 4960.594717][ T253] dst_alloc+0x97/0x150 [ 4960.594717][ T253] ip6_dst_alloc+0x23/0x90 [ 4960.594717][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4960.594717][ T253] ip6_pol_route+0x56f/0x840 [ 4960.594717][ T253] fib6_rule_lookup+0x334/0x630 [ 4960.594717][ T253] ip6_route_output_flags+0x259/0x480 [ 4960.594717][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4960.594717][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4960.594717][ T253] netlink_rcv_skb+0x130/0x360 [ 4960.594717][ T253] netlink_unicast+0x449/0x710 [ 4960.594717][ T253] netlink_sendmsg+0x723/0xbe0 [ 4960.594717][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4960.594717][ T253] ___sys_sendmsg+0xee/0x170 [ 4960.594717][ T253] __sys_sendmsg+0xcd/0x170 [ 4960.594717][ T253] do_syscall_64+0xc6/0x1e0 [ 4960.594717][ T253] [ 4960.596936][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4960.596936][ T253] netdev_get_by_index+0x5e/0x80 [ 4960.596936][ T253] fib6_nh_init+0x3d8/0x1580 [ 4960.596936][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4960.596936][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4960.596936][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4960.596936][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4960.596936][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4960.596936][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4960.596936][ T253] addrconf_dad_begin+0x310/0x670 [ 4960.596936][ T253] addrconf_dad_work+0x10b/0xab0 [ 4960.596936][ T253] process_one_work+0x84d/0x18a0 [ 4960.596936][ T253] worker_thread+0x587/0xd30 [ 4960.596936][ T253] kthread+0x28a/0x350 [ 4960.596936][ T253] ret_from_fork+0x31/0x70 [ 4960.596936][ T253] ret_from_fork_asm+0x1a/0x30 [ 4960.596936][ T253] [ 4960.599079][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4960.599079][ T253] netdev_get_by_index+0x5e/0x80 [ 4960.599079][ T253] fib6_nh_init+0x3d8/0x1580 [ 4960.599079][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4960.599079][ T253] ip6_route_add+0x1c/0x140 [ 4960.599079][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4960.599079][ T253] inet6_addr_add+0x4f8/0xa40 [ 4960.599079][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4960.599079][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4960.599079][ T253] netlink_rcv_skb+0x130/0x360 [ 4960.599079][ T253] netlink_unicast+0x449/0x710 [ 4960.599079][ T253] netlink_sendmsg+0x723/0xbe0 [ 4960.599079][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4960.599079][ T253] ___sys_sendmsg+0xee/0x170 [ 4960.599079][ T253] __sys_sendmsg+0xcd/0x170 [ 4960.599079][ T253] do_syscall_64+0xc6/0x1e0 [ 4960.599079][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4960.599079][ T253] [ 4960.601328][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4960.601328][ T253] netdev_get_by_index+0x5e/0x80 [ 4960.601328][ T253] fib6_nh_init+0x3d8/0x1580 [ 4960.601328][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4960.601328][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4960.601328][ T253] ipv6_add_addr+0x411/0x2000 [ 4960.601328][ T253] inet6_addr_add+0x30e/0xa40 [ 4960.601328][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4960.601328][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4960.601328][ T253] netlink_rcv_skb+0x130/0x360 [ 4960.601328][ T253] netlink_unicast+0x449/0x710 [ 4960.601328][ T253] netlink_sendmsg+0x723/0xbe0 [ 4960.601328][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4960.601328][ T253] ___sys_sendmsg+0xee/0x170 [ 4960.601328][ T253] __sys_sendmsg+0xcd/0x170 [ 4960.601328][ T253] do_syscall_64+0xc6/0x1e0 [ 4960.601328][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4960.601328][ T253] [ 4960.603566][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4960.603566][ T253] netdev_get_by_index+0x5e/0x80 [ 4960.603566][ T253] fib6_nh_init+0x3d8/0x1580 [ 4960.603566][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4960.603566][ T253] ip6_route_add+0x1c/0x140 [ 4960.603566][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4960.603566][ T253] addrconf_add_dev+0xe2/0x170 [ 4960.603566][ T253] inet6_addr_add+0x12f/0xa40 [ 4960.603566][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4960.603566][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4960.603566][ T253] netlink_rcv_skb+0x130/0x360 [ 4960.603566][ T253] netlink_unicast+0x449/0x710 [ 4960.603566][ T253] netlink_sendmsg+0x723/0xbe0 [ 4960.603566][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4960.603566][ T253] ___sys_sendmsg+0xee/0x170 [ 4960.603566][ T253] __sys_sendmsg+0xcd/0x170 [ 4960.603566][ T253] do_syscall_64+0xc6/0x1e0 [ 4960.603566][ T253] [ 4960.605768][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4960.605768][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4960.605768][ T253] ipv6_find_idev+0x102/0x170 [ 4960.605768][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4960.605768][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4960.605768][ T253] netlink_rcv_skb+0x130/0x360 [ 4960.605768][ T253] netlink_unicast+0x449/0x710 [ 4960.605768][ T253] netlink_sendmsg+0x723/0xbe0 [ 4960.605768][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4960.605768][ T253] ___sys_sendmsg+0xee/0x170 [ 4960.605768][ T253] __sys_sendmsg+0xcd/0x170 [ 4960.605768][ T253] do_syscall_64+0xc6/0x1e0 [ 4960.605768][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4960.605768][ T253] [ 4960.607507][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4960.607507][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4960.607507][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4960.607507][ T253] ipv6_find_idev+0x102/0x170 [ 4960.607507][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4960.607507][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4960.607507][ T253] netlink_rcv_skb+0x130/0x360 [ 4960.607507][ T253] netlink_unicast+0x449/0x710 [ 4960.607507][ T253] netlink_sendmsg+0x723/0xbe0 [ 4960.607507][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4960.607507][ T253] ___sys_sendmsg+0xee/0x170 [ 4960.607507][ T253] __sys_sendmsg+0xcd/0x170 [ 4960.607507][ T253] do_syscall_64+0xc6/0x1e0 [ 4960.607507][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4960.607507][ T253] [ 4970.850303][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4970.850725][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4970.850725][ T253] dst_init+0x84/0x4a0 [ 4970.850725][ T253] dst_alloc+0x97/0x150 [ 4970.850725][ T253] ip6_dst_alloc+0x23/0x90 [ 4970.850725][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4970.850725][ T253] ip6_pol_route+0x56f/0x840 [ 4970.850725][ T253] fib6_rule_lookup+0x334/0x630 [ 4970.850725][ T253] ip6_route_output_flags+0x259/0x480 [ 4970.850725][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4970.850725][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4970.850725][ T253] netlink_rcv_skb+0x130/0x360 [ 4970.850725][ T253] netlink_unicast+0x449/0x710 [ 4970.850725][ T253] netlink_sendmsg+0x723/0xbe0 [ 4970.850725][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4970.850725][ T253] ___sys_sendmsg+0xee/0x170 [ 4970.850725][ T253] __sys_sendmsg+0xcd/0x170 [ 4970.850725][ T253] do_syscall_64+0xc6/0x1e0 [ 4970.850725][ T253] [ 4970.852926][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4970.852926][ T253] netdev_get_by_index+0x5e/0x80 [ 4970.852926][ T253] fib6_nh_init+0x3d8/0x1580 [ 4970.852926][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4970.852926][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4970.852926][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4970.852926][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4970.852926][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4970.852926][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4970.852926][ T253] addrconf_dad_begin+0x310/0x670 [ 4970.852926][ T253] addrconf_dad_work+0x10b/0xab0 [ 4970.852926][ T253] process_one_work+0x84d/0x18a0 [ 4970.852926][ T253] worker_thread+0x587/0xd30 [ 4970.852926][ T253] kthread+0x28a/0x350 [ 4970.852926][ T253] ret_from_fork+0x31/0x70 [ 4970.852926][ T253] ret_from_fork_asm+0x1a/0x30 [ 4970.852926][ T253] [ 4970.855081][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4970.855081][ T253] netdev_get_by_index+0x5e/0x80 [ 4970.855081][ T253] fib6_nh_init+0x3d8/0x1580 [ 4970.855081][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4970.855081][ T253] ip6_route_add+0x1c/0x140 [ 4970.855081][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4970.855081][ T253] inet6_addr_add+0x4f8/0xa40 [ 4970.855081][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4970.855081][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4970.855081][ T253] netlink_rcv_skb+0x130/0x360 [ 4970.855081][ T253] netlink_unicast+0x449/0x710 [ 4970.855081][ T253] netlink_sendmsg+0x723/0xbe0 [ 4970.855081][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4970.855081][ T253] ___sys_sendmsg+0xee/0x170 [ 4970.855081][ T253] __sys_sendmsg+0xcd/0x170 [ 4970.855081][ T253] do_syscall_64+0xc6/0x1e0 [ 4970.855081][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4970.855081][ T253] [ 4970.857339][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4970.857339][ T253] netdev_get_by_index+0x5e/0x80 [ 4970.857339][ T253] fib6_nh_init+0x3d8/0x1580 [ 4970.857339][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4970.857339][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4970.857339][ T253] ipv6_add_addr+0x411/0x2000 [ 4970.857339][ T253] inet6_addr_add+0x30e/0xa40 [ 4970.857339][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4970.857339][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4970.857339][ T253] netlink_rcv_skb+0x130/0x360 [ 4970.857339][ T253] netlink_unicast+0x449/0x710 [ 4970.857339][ T253] netlink_sendmsg+0x723/0xbe0 [ 4970.857339][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4970.857339][ T253] ___sys_sendmsg+0xee/0x170 [ 4970.857339][ T253] __sys_sendmsg+0xcd/0x170 [ 4970.857339][ T253] do_syscall_64+0xc6/0x1e0 [ 4970.857339][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4970.857339][ T253] [ 4970.859588][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4970.859588][ T253] netdev_get_by_index+0x5e/0x80 [ 4970.859588][ T253] fib6_nh_init+0x3d8/0x1580 [ 4970.859588][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4970.859588][ T253] ip6_route_add+0x1c/0x140 [ 4970.859588][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4970.859588][ T253] addrconf_add_dev+0xe2/0x170 [ 4970.859588][ T253] inet6_addr_add+0x12f/0xa40 [ 4970.859588][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4970.859588][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4970.859588][ T253] netlink_rcv_skb+0x130/0x360 [ 4970.859588][ T253] netlink_unicast+0x449/0x710 [ 4970.859588][ T253] netlink_sendmsg+0x723/0xbe0 [ 4970.859588][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4970.859588][ T253] ___sys_sendmsg+0xee/0x170 [ 4970.859588][ T253] __sys_sendmsg+0xcd/0x170 [ 4970.859588][ T253] do_syscall_64+0xc6/0x1e0 [ 4970.859588][ T253] [ 4970.861820][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4970.861820][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4970.861820][ T253] ipv6_find_idev+0x102/0x170 [ 4970.861820][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4970.861820][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4970.861820][ T253] netlink_rcv_skb+0x130/0x360 [ 4970.861820][ T253] netlink_unicast+0x449/0x710 [ 4970.861820][ T253] netlink_sendmsg+0x723/0xbe0 [ 4970.861820][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4970.861820][ T253] ___sys_sendmsg+0xee/0x170 [ 4970.861820][ T253] __sys_sendmsg+0xcd/0x170 [ 4970.861820][ T253] do_syscall_64+0xc6/0x1e0 [ 4970.861820][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4970.861820][ T253] [ 4970.863646][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4970.863646][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4970.863646][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4970.863646][ T253] ipv6_find_idev+0x102/0x170 [ 4970.863646][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4970.863646][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4970.863646][ T253] netlink_rcv_skb+0x130/0x360 [ 4970.863646][ T253] netlink_unicast+0x449/0x710 [ 4970.863646][ T253] netlink_sendmsg+0x723/0xbe0 [ 4970.863646][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4970.863646][ T253] ___sys_sendmsg+0xee/0x170 [ 4970.863646][ T253] __sys_sendmsg+0xcd/0x170 [ 4970.863646][ T253] do_syscall_64+0xc6/0x1e0 [ 4970.863646][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4970.863646][ T253] [ 4981.106311][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4981.106809][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4981.106809][ T253] dst_init+0x84/0x4a0 [ 4981.106809][ T253] dst_alloc+0x97/0x150 [ 4981.106809][ T253] ip6_dst_alloc+0x23/0x90 [ 4981.106809][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4981.106809][ T253] ip6_pol_route+0x56f/0x840 [ 4981.106809][ T253] fib6_rule_lookup+0x334/0x630 [ 4981.106809][ T253] ip6_route_output_flags+0x259/0x480 [ 4981.106809][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4981.106809][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4981.106809][ T253] netlink_rcv_skb+0x130/0x360 [ 4981.106809][ T253] netlink_unicast+0x449/0x710 [ 4981.106809][ T253] netlink_sendmsg+0x723/0xbe0 [ 4981.106809][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4981.106809][ T253] ___sys_sendmsg+0xee/0x170 [ 4981.106809][ T253] __sys_sendmsg+0xcd/0x170 [ 4981.106809][ T253] do_syscall_64+0xc6/0x1e0 [ 4981.106809][ T253] [ 4981.109007][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4981.109007][ T253] netdev_get_by_index+0x5e/0x80 [ 4981.109007][ T253] fib6_nh_init+0x3d8/0x1580 [ 4981.109007][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4981.109007][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4981.109007][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4981.109007][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4981.109007][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4981.109007][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4981.109007][ T253] addrconf_dad_begin+0x310/0x670 [ 4981.109007][ T253] addrconf_dad_work+0x10b/0xab0 [ 4981.109007][ T253] process_one_work+0x84d/0x18a0 [ 4981.109007][ T253] worker_thread+0x587/0xd30 [ 4981.109007][ T253] kthread+0x28a/0x350 [ 4981.109007][ T253] ret_from_fork+0x31/0x70 [ 4981.109007][ T253] ret_from_fork_asm+0x1a/0x30 [ 4981.109007][ T253] [ 4981.111169][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4981.111169][ T253] netdev_get_by_index+0x5e/0x80 [ 4981.111169][ T253] fib6_nh_init+0x3d8/0x1580 [ 4981.111169][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4981.111169][ T253] ip6_route_add+0x1c/0x140 [ 4981.111169][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4981.111169][ T253] inet6_addr_add+0x4f8/0xa40 [ 4981.111169][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4981.111169][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4981.111169][ T253] netlink_rcv_skb+0x130/0x360 [ 4981.111169][ T253] netlink_unicast+0x449/0x710 [ 4981.111169][ T253] netlink_sendmsg+0x723/0xbe0 [ 4981.111169][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4981.111169][ T253] ___sys_sendmsg+0xee/0x170 [ 4981.111169][ T253] __sys_sendmsg+0xcd/0x170 [ 4981.111169][ T253] do_syscall_64+0xc6/0x1e0 [ 4981.111169][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4981.111169][ T253] [ 4981.113412][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4981.113412][ T253] netdev_get_by_index+0x5e/0x80 [ 4981.113412][ T253] fib6_nh_init+0x3d8/0x1580 [ 4981.113412][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4981.113412][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4981.113412][ T253] ipv6_add_addr+0x411/0x2000 [ 4981.113412][ T253] inet6_addr_add+0x30e/0xa40 [ 4981.113412][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4981.113412][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4981.113412][ T253] netlink_rcv_skb+0x130/0x360 [ 4981.113412][ T253] netlink_unicast+0x449/0x710 [ 4981.113412][ T253] netlink_sendmsg+0x723/0xbe0 [ 4981.113412][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4981.113412][ T253] ___sys_sendmsg+0xee/0x170 [ 4981.113412][ T253] __sys_sendmsg+0xcd/0x170 [ 4981.113412][ T253] do_syscall_64+0xc6/0x1e0 [ 4981.113412][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4981.113412][ T253] [ 4981.115666][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4981.115666][ T253] netdev_get_by_index+0x5e/0x80 [ 4981.115666][ T253] fib6_nh_init+0x3d8/0x1580 [ 4981.115666][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4981.115666][ T253] ip6_route_add+0x1c/0x140 [ 4981.115666][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4981.115666][ T253] addrconf_add_dev+0xe2/0x170 [ 4981.115666][ T253] inet6_addr_add+0x12f/0xa40 [ 4981.115666][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4981.115666][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4981.115666][ T253] netlink_rcv_skb+0x130/0x360 [ 4981.115666][ T253] netlink_unicast+0x449/0x710 [ 4981.115666][ T253] netlink_sendmsg+0x723/0xbe0 [ 4981.115666][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4981.115666][ T253] ___sys_sendmsg+0xee/0x170 [ 4981.115666][ T253] __sys_sendmsg+0xcd/0x170 [ 4981.115666][ T253] do_syscall_64+0xc6/0x1e0 [ 4981.115666][ T253] [ 4981.117885][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4981.117885][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4981.117885][ T253] ipv6_find_idev+0x102/0x170 [ 4981.117885][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4981.117885][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4981.117885][ T253] netlink_rcv_skb+0x130/0x360 [ 4981.117885][ T253] netlink_unicast+0x449/0x710 [ 4981.117885][ T253] netlink_sendmsg+0x723/0xbe0 [ 4981.117885][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4981.117885][ T253] ___sys_sendmsg+0xee/0x170 [ 4981.117885][ T253] __sys_sendmsg+0xcd/0x170 [ 4981.117885][ T253] do_syscall_64+0xc6/0x1e0 [ 4981.117885][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4981.117885][ T253] [ 4981.119607][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4981.119607][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4981.119607][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4981.119607][ T253] ipv6_find_idev+0x102/0x170 [ 4981.119607][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4981.119607][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4981.119607][ T253] netlink_rcv_skb+0x130/0x360 [ 4981.119607][ T253] netlink_unicast+0x449/0x710 [ 4981.119607][ T253] netlink_sendmsg+0x723/0xbe0 [ 4981.119607][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4981.119607][ T253] ___sys_sendmsg+0xee/0x170 [ 4981.119607][ T253] __sys_sendmsg+0xcd/0x170 [ 4981.119607][ T253] do_syscall_64+0xc6/0x1e0 [ 4981.119607][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4981.119607][ T253] [ 4991.274306][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4991.274724][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4991.274724][ T253] dst_init+0x84/0x4a0 [ 4991.274724][ T253] dst_alloc+0x97/0x150 [ 4991.274724][ T253] ip6_dst_alloc+0x23/0x90 [ 4991.274724][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4991.274724][ T253] ip6_pol_route+0x56f/0x840 [ 4991.274724][ T253] fib6_rule_lookup+0x334/0x630 [ 4991.274724][ T253] ip6_route_output_flags+0x259/0x480 [ 4991.274724][ T253] inet6_rtm_getroute+0x980/0xf70 [ 4991.274724][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 4991.274724][ T253] netlink_rcv_skb+0x130/0x360 [ 4991.274724][ T253] netlink_unicast+0x449/0x710 [ 4991.274724][ T253] netlink_sendmsg+0x723/0xbe0 [ 4991.274724][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4991.274724][ T253] ___sys_sendmsg+0xee/0x170 [ 4991.274724][ T253] __sys_sendmsg+0xcd/0x170 [ 4991.274724][ T253] do_syscall_64+0xc6/0x1e0 [ 4991.274724][ T253] [ 4991.276949][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4991.276949][ T253] netdev_get_by_index+0x5e/0x80 [ 4991.276949][ T253] fib6_nh_init+0x3d8/0x1580 [ 4991.276949][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4991.276949][ T253] addrconf_f6i_alloc+0x265/0x560 [ 4991.276949][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4991.276949][ T253] addrconf_join_anycast+0x1c0/0x220 [ 4991.276949][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4991.276949][ T253] addrconf_dad_completed+0x12b/0xe20 [ 4991.276949][ T253] addrconf_dad_begin+0x310/0x670 [ 4991.276949][ T253] addrconf_dad_work+0x10b/0xab0 [ 4991.276949][ T253] process_one_work+0x84d/0x18a0 [ 4991.276949][ T253] worker_thread+0x587/0xd30 [ 4991.276949][ T253] kthread+0x28a/0x350 [ 4991.276949][ T253] ret_from_fork+0x31/0x70 [ 4991.276949][ T253] ret_from_fork_asm+0x1a/0x30 [ 4991.276949][ T253] [ 4991.279108][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4991.279108][ T253] netdev_get_by_index+0x5e/0x80 [ 4991.279108][ T253] fib6_nh_init+0x3d8/0x1580 [ 4991.279108][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4991.279108][ T253] ip6_route_add+0x1c/0x140 [ 4991.279108][ T253] addrconf_prefix_route+0x2a6/0x430 [ 4991.279108][ T253] inet6_addr_add+0x4f8/0xa40 [ 4991.279108][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4991.279108][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4991.279108][ T253] netlink_rcv_skb+0x130/0x360 [ 4991.279108][ T253] netlink_unicast+0x449/0x710 [ 4991.279108][ T253] netlink_sendmsg+0x723/0xbe0 [ 4991.279108][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4991.279108][ T253] ___sys_sendmsg+0xee/0x170 [ 4991.279108][ T253] __sys_sendmsg+0xcd/0x170 [ 4991.279108][ T253] do_syscall_64+0xc6/0x1e0 [ 4991.279108][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4991.279108][ T253] [ 4991.281345][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4991.281345][ T253] netdev_get_by_index+0x5e/0x80 [ 4991.281345][ T253] fib6_nh_init+0x3d8/0x1580 [ 4991.281345][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4991.281345][ T253] addrconf_f6i_alloc+0x315/0x560 [ 4991.281345][ T253] ipv6_add_addr+0x411/0x2000 [ 4991.281345][ T253] inet6_addr_add+0x30e/0xa40 [ 4991.281345][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4991.281345][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4991.281345][ T253] netlink_rcv_skb+0x130/0x360 [ 4991.281345][ T253] netlink_unicast+0x449/0x710 [ 4991.281345][ T253] netlink_sendmsg+0x723/0xbe0 [ 4991.281345][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4991.281345][ T253] ___sys_sendmsg+0xee/0x170 [ 4991.281345][ T253] __sys_sendmsg+0xcd/0x170 [ 4991.281345][ T253] do_syscall_64+0xc6/0x1e0 [ 4991.281345][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4991.281345][ T253] [ 4991.283587][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4991.283587][ T253] netdev_get_by_index+0x5e/0x80 [ 4991.283587][ T253] fib6_nh_init+0x3d8/0x1580 [ 4991.283587][ T253] ip6_route_info_create+0xf18/0x17d0 [ 4991.283587][ T253] ip6_route_add+0x1c/0x140 [ 4991.283587][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 4991.283587][ T253] addrconf_add_dev+0xe2/0x170 [ 4991.283587][ T253] inet6_addr_add+0x12f/0xa40 [ 4991.283587][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 4991.283587][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4991.283587][ T253] netlink_rcv_skb+0x130/0x360 [ 4991.283587][ T253] netlink_unicast+0x449/0x710 [ 4991.283587][ T253] netlink_sendmsg+0x723/0xbe0 [ 4991.283587][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4991.283587][ T253] ___sys_sendmsg+0xee/0x170 [ 4991.283587][ T253] __sys_sendmsg+0xcd/0x170 [ 4991.283587][ T253] do_syscall_64+0xc6/0x1e0 [ 4991.283587][ T253] [ 4991.285818][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4991.285818][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 4991.285818][ T253] ipv6_find_idev+0x102/0x170 [ 4991.285818][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4991.285818][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4991.285818][ T253] netlink_rcv_skb+0x130/0x360 [ 4991.285818][ T253] netlink_unicast+0x449/0x710 [ 4991.285818][ T253] netlink_sendmsg+0x723/0xbe0 [ 4991.285818][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4991.285818][ T253] ___sys_sendmsg+0xee/0x170 [ 4991.285818][ T253] __sys_sendmsg+0xcd/0x170 [ 4991.285818][ T253] do_syscall_64+0xc6/0x1e0 [ 4991.285818][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4991.285818][ T253] [ 4991.287568][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 4991.287568][ T253] neigh_parms_alloc+0x1e5/0x510 [ 4991.287568][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 4991.287568][ T253] ipv6_find_idev+0x102/0x170 [ 4991.287568][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 4991.287568][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4991.287568][ T253] netlink_rcv_skb+0x130/0x360 [ 4991.287568][ T253] netlink_unicast+0x449/0x710 [ 4991.287568][ T253] netlink_sendmsg+0x723/0xbe0 [ 4991.287568][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 4991.287568][ T253] ___sys_sendmsg+0xee/0x170 [ 4991.287568][ T253] __sys_sendmsg+0xcd/0x170 [ 4991.287568][ T253] do_syscall_64+0xc6/0x1e0 [ 4991.287568][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4991.287568][ T253] [ 5001.538270][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5001.538751][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5001.538751][ T253] dst_init+0x84/0x4a0 [ 5001.538751][ T253] dst_alloc+0x97/0x150 [ 5001.538751][ T253] ip6_dst_alloc+0x23/0x90 [ 5001.538751][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5001.538751][ T253] ip6_pol_route+0x56f/0x840 [ 5001.538751][ T253] fib6_rule_lookup+0x334/0x630 [ 5001.538751][ T253] ip6_route_output_flags+0x259/0x480 [ 5001.538751][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5001.538751][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5001.538751][ T253] netlink_rcv_skb+0x130/0x360 [ 5001.538751][ T253] netlink_unicast+0x449/0x710 [ 5001.538751][ T253] netlink_sendmsg+0x723/0xbe0 [ 5001.538751][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5001.538751][ T253] ___sys_sendmsg+0xee/0x170 [ 5001.538751][ T253] __sys_sendmsg+0xcd/0x170 [ 5001.538751][ T253] do_syscall_64+0xc6/0x1e0 [ 5001.538751][ T253] [ 5001.540962][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5001.540962][ T253] netdev_get_by_index+0x5e/0x80 [ 5001.540962][ T253] fib6_nh_init+0x3d8/0x1580 [ 5001.540962][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5001.540962][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5001.540962][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5001.540962][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5001.540962][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5001.540962][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5001.540962][ T253] addrconf_dad_begin+0x310/0x670 [ 5001.540962][ T253] addrconf_dad_work+0x10b/0xab0 [ 5001.540962][ T253] process_one_work+0x84d/0x18a0 [ 5001.540962][ T253] worker_thread+0x587/0xd30 [ 5001.540962][ T253] kthread+0x28a/0x350 [ 5001.540962][ T253] ret_from_fork+0x31/0x70 [ 5001.540962][ T253] ret_from_fork_asm+0x1a/0x30 [ 5001.540962][ T253] [ 5001.543093][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5001.543093][ T253] netdev_get_by_index+0x5e/0x80 [ 5001.543093][ T253] fib6_nh_init+0x3d8/0x1580 [ 5001.543093][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5001.543093][ T253] ip6_route_add+0x1c/0x140 [ 5001.543093][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5001.543093][ T253] inet6_addr_add+0x4f8/0xa40 [ 5001.543093][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5001.543093][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5001.543093][ T253] netlink_rcv_skb+0x130/0x360 [ 5001.543093][ T253] netlink_unicast+0x449/0x710 [ 5001.543093][ T253] netlink_sendmsg+0x723/0xbe0 [ 5001.543093][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5001.543093][ T253] ___sys_sendmsg+0xee/0x170 [ 5001.543093][ T253] __sys_sendmsg+0xcd/0x170 [ 5001.543093][ T253] do_syscall_64+0xc6/0x1e0 [ 5001.543093][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5001.543093][ T253] [ 5001.545344][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5001.545344][ T253] netdev_get_by_index+0x5e/0x80 [ 5001.545344][ T253] fib6_nh_init+0x3d8/0x1580 [ 5001.545344][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5001.545344][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5001.545344][ T253] ipv6_add_addr+0x411/0x2000 [ 5001.545344][ T253] inet6_addr_add+0x30e/0xa40 [ 5001.545344][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5001.545344][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5001.545344][ T253] netlink_rcv_skb+0x130/0x360 [ 5001.545344][ T253] netlink_unicast+0x449/0x710 [ 5001.545344][ T253] netlink_sendmsg+0x723/0xbe0 [ 5001.545344][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5001.545344][ T253] ___sys_sendmsg+0xee/0x170 [ 5001.545344][ T253] __sys_sendmsg+0xcd/0x170 [ 5001.545344][ T253] do_syscall_64+0xc6/0x1e0 [ 5001.545344][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5001.545344][ T253] [ 5001.547689][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5001.547689][ T253] netdev_get_by_index+0x5e/0x80 [ 5001.547689][ T253] fib6_nh_init+0x3d8/0x1580 [ 5001.547689][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5001.547689][ T253] ip6_route_add+0x1c/0x140 [ 5001.547689][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5001.547689][ T253] addrconf_add_dev+0xe2/0x170 [ 5001.547689][ T253] inet6_addr_add+0x12f/0xa40 [ 5001.547689][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5001.547689][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5001.547689][ T253] netlink_rcv_skb+0x130/0x360 [ 5001.547689][ T253] netlink_unicast+0x449/0x710 [ 5001.547689][ T253] netlink_sendmsg+0x723/0xbe0 [ 5001.547689][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5001.547689][ T253] ___sys_sendmsg+0xee/0x170 [ 5001.547689][ T253] __sys_sendmsg+0xcd/0x170 [ 5001.547689][ T253] do_syscall_64+0xc6/0x1e0 [ 5001.547689][ T253] [ 5001.550072][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5001.550072][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5001.550072][ T253] ipv6_find_idev+0x102/0x170 [ 5001.550072][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5001.550072][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5001.550072][ T253] netlink_rcv_skb+0x130/0x360 [ 5001.550072][ T253] netlink_unicast+0x449/0x710 [ 5001.550072][ T253] netlink_sendmsg+0x723/0xbe0 [ 5001.550072][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5001.550072][ T253] ___sys_sendmsg+0xee/0x170 [ 5001.550072][ T253] __sys_sendmsg+0xcd/0x170 [ 5001.550072][ T253] do_syscall_64+0xc6/0x1e0 [ 5001.550072][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5001.550072][ T253] [ 5001.551847][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5001.551847][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5001.551847][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5001.551847][ T253] ipv6_find_idev+0x102/0x170 [ 5001.551847][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5001.551847][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5001.551847][ T253] netlink_rcv_skb+0x130/0x360 [ 5001.551847][ T253] netlink_unicast+0x449/0x710 [ 5001.551847][ T253] netlink_sendmsg+0x723/0xbe0 [ 5001.551847][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5001.551847][ T253] ___sys_sendmsg+0xee/0x170 [ 5001.551847][ T253] __sys_sendmsg+0xcd/0x170 [ 5001.551847][ T253] do_syscall_64+0xc6/0x1e0 [ 5001.551847][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5001.551847][ T253] [ 5011.618326][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5011.618812][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5011.618812][ T253] dst_init+0x84/0x4a0 [ 5011.618812][ T253] dst_alloc+0x97/0x150 [ 5011.618812][ T253] ip6_dst_alloc+0x23/0x90 [ 5011.618812][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5011.618812][ T253] ip6_pol_route+0x56f/0x840 [ 5011.618812][ T253] fib6_rule_lookup+0x334/0x630 [ 5011.618812][ T253] ip6_route_output_flags+0x259/0x480 [ 5011.618812][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5011.618812][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5011.618812][ T253] netlink_rcv_skb+0x130/0x360 [ 5011.618812][ T253] netlink_unicast+0x449/0x710 [ 5011.618812][ T253] netlink_sendmsg+0x723/0xbe0 [ 5011.618812][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5011.618812][ T253] ___sys_sendmsg+0xee/0x170 [ 5011.618812][ T253] __sys_sendmsg+0xcd/0x170 [ 5011.618812][ T253] do_syscall_64+0xc6/0x1e0 [ 5011.618812][ T253] [ 5011.621018][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5011.621018][ T253] netdev_get_by_index+0x5e/0x80 [ 5011.621018][ T253] fib6_nh_init+0x3d8/0x1580 [ 5011.621018][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5011.621018][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5011.621018][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5011.621018][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5011.621018][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5011.621018][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5011.621018][ T253] addrconf_dad_begin+0x310/0x670 [ 5011.621018][ T253] addrconf_dad_work+0x10b/0xab0 [ 5011.621018][ T253] process_one_work+0x84d/0x18a0 [ 5011.621018][ T253] worker_thread+0x587/0xd30 [ 5011.621018][ T253] kthread+0x28a/0x350 [ 5011.621018][ T253] ret_from_fork+0x31/0x70 [ 5011.621018][ T253] ret_from_fork_asm+0x1a/0x30 [ 5011.621018][ T253] [ 5011.623159][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5011.623159][ T253] netdev_get_by_index+0x5e/0x80 [ 5011.623159][ T253] fib6_nh_init+0x3d8/0x1580 [ 5011.623159][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5011.623159][ T253] ip6_route_add+0x1c/0x140 [ 5011.623159][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5011.623159][ T253] inet6_addr_add+0x4f8/0xa40 [ 5011.623159][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5011.623159][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5011.623159][ T253] netlink_rcv_skb+0x130/0x360 [ 5011.623159][ T253] netlink_unicast+0x449/0x710 [ 5011.623159][ T253] netlink_sendmsg+0x723/0xbe0 [ 5011.623159][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5011.623159][ T253] ___sys_sendmsg+0xee/0x170 [ 5011.623159][ T253] __sys_sendmsg+0xcd/0x170 [ 5011.623159][ T253] do_syscall_64+0xc6/0x1e0 [ 5011.623159][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5011.623159][ T253] [ 5011.625406][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5011.625406][ T253] netdev_get_by_index+0x5e/0x80 [ 5011.625406][ T253] fib6_nh_init+0x3d8/0x1580 [ 5011.625406][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5011.625406][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5011.625406][ T253] ipv6_add_addr+0x411/0x2000 [ 5011.625406][ T253] inet6_addr_add+0x30e/0xa40 [ 5011.625406][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5011.625406][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5011.625406][ T253] netlink_rcv_skb+0x130/0x360 [ 5011.625406][ T253] netlink_unicast+0x449/0x710 [ 5011.625406][ T253] netlink_sendmsg+0x723/0xbe0 [ 5011.625406][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5011.625406][ T253] ___sys_sendmsg+0xee/0x170 [ 5011.625406][ T253] __sys_sendmsg+0xcd/0x170 [ 5011.625406][ T253] do_syscall_64+0xc6/0x1e0 [ 5011.625406][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5011.625406][ T253] [ 5011.627653][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5011.627653][ T253] netdev_get_by_index+0x5e/0x80 [ 5011.627653][ T253] fib6_nh_init+0x3d8/0x1580 [ 5011.627653][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5011.627653][ T253] ip6_route_add+0x1c/0x140 [ 5011.627653][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5011.627653][ T253] addrconf_add_dev+0xe2/0x170 [ 5011.627653][ T253] inet6_addr_add+0x12f/0xa40 [ 5011.627653][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5011.627653][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5011.627653][ T253] netlink_rcv_skb+0x130/0x360 [ 5011.627653][ T253] netlink_unicast+0x449/0x710 [ 5011.627653][ T253] netlink_sendmsg+0x723/0xbe0 [ 5011.627653][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5011.627653][ T253] ___sys_sendmsg+0xee/0x170 [ 5011.627653][ T253] __sys_sendmsg+0xcd/0x170 [ 5011.627653][ T253] do_syscall_64+0xc6/0x1e0 [ 5011.627653][ T253] [ 5011.629848][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5011.629848][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5011.629848][ T253] ipv6_find_idev+0x102/0x170 [ 5011.629848][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5011.629848][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5011.629848][ T253] netlink_rcv_skb+0x130/0x360 [ 5011.629848][ T253] netlink_unicast+0x449/0x710 [ 5011.629848][ T253] netlink_sendmsg+0x723/0xbe0 [ 5011.629848][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5011.629848][ T253] ___sys_sendmsg+0xee/0x170 [ 5011.629848][ T253] __sys_sendmsg+0xcd/0x170 [ 5011.629848][ T253] do_syscall_64+0xc6/0x1e0 [ 5011.629848][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5011.629848][ T253] [ 5011.631568][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5011.631568][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5011.631568][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5011.631568][ T253] ipv6_find_idev+0x102/0x170 [ 5011.631568][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5011.631568][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5011.631568][ T253] netlink_rcv_skb+0x130/0x360 [ 5011.631568][ T253] netlink_unicast+0x449/0x710 [ 5011.631568][ T253] netlink_sendmsg+0x723/0xbe0 [ 5011.631568][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5011.631568][ T253] ___sys_sendmsg+0xee/0x170 [ 5011.631568][ T253] __sys_sendmsg+0xcd/0x170 [ 5011.631568][ T253] do_syscall_64+0xc6/0x1e0 [ 5011.631568][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5011.631568][ T253] [ 5021.674275][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5021.674736][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5021.674736][ T253] dst_init+0x84/0x4a0 [ 5021.674736][ T253] dst_alloc+0x97/0x150 [ 5021.674736][ T253] ip6_dst_alloc+0x23/0x90 [ 5021.674736][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5021.674736][ T253] ip6_pol_route+0x56f/0x840 [ 5021.674736][ T253] fib6_rule_lookup+0x334/0x630 [ 5021.674736][ T253] ip6_route_output_flags+0x259/0x480 [ 5021.674736][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5021.674736][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5021.674736][ T253] netlink_rcv_skb+0x130/0x360 [ 5021.674736][ T253] netlink_unicast+0x449/0x710 [ 5021.674736][ T253] netlink_sendmsg+0x723/0xbe0 [ 5021.674736][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5021.674736][ T253] ___sys_sendmsg+0xee/0x170 [ 5021.674736][ T253] __sys_sendmsg+0xcd/0x170 [ 5021.674736][ T253] do_syscall_64+0xc6/0x1e0 [ 5021.674736][ T253] [ 5021.676977][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5021.676977][ T253] netdev_get_by_index+0x5e/0x80 [ 5021.676977][ T253] fib6_nh_init+0x3d8/0x1580 [ 5021.676977][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5021.676977][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5021.676977][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5021.676977][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5021.676977][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5021.676977][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5021.676977][ T253] addrconf_dad_begin+0x310/0x670 [ 5021.676977][ T253] addrconf_dad_work+0x10b/0xab0 [ 5021.676977][ T253] process_one_work+0x84d/0x18a0 [ 5021.676977][ T253] worker_thread+0x587/0xd30 [ 5021.676977][ T253] kthread+0x28a/0x350 [ 5021.676977][ T253] ret_from_fork+0x31/0x70 [ 5021.676977][ T253] ret_from_fork_asm+0x1a/0x30 [ 5021.676977][ T253] [ 5021.679118][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5021.679118][ T253] netdev_get_by_index+0x5e/0x80 [ 5021.679118][ T253] fib6_nh_init+0x3d8/0x1580 [ 5021.679118][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5021.679118][ T253] ip6_route_add+0x1c/0x140 [ 5021.679118][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5021.679118][ T253] inet6_addr_add+0x4f8/0xa40 [ 5021.679118][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5021.679118][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5021.679118][ T253] netlink_rcv_skb+0x130/0x360 [ 5021.679118][ T253] netlink_unicast+0x449/0x710 [ 5021.679118][ T253] netlink_sendmsg+0x723/0xbe0 [ 5021.679118][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5021.679118][ T253] ___sys_sendmsg+0xee/0x170 [ 5021.679118][ T253] __sys_sendmsg+0xcd/0x170 [ 5021.679118][ T253] do_syscall_64+0xc6/0x1e0 [ 5021.679118][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5021.679118][ T253] [ 5021.681387][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5021.681387][ T253] netdev_get_by_index+0x5e/0x80 [ 5021.681387][ T253] fib6_nh_init+0x3d8/0x1580 [ 5021.681387][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5021.681387][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5021.681387][ T253] ipv6_add_addr+0x411/0x2000 [ 5021.681387][ T253] inet6_addr_add+0x30e/0xa40 [ 5021.681387][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5021.681387][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5021.681387][ T253] netlink_rcv_skb+0x130/0x360 [ 5021.681387][ T253] netlink_unicast+0x449/0x710 [ 5021.681387][ T253] netlink_sendmsg+0x723/0xbe0 [ 5021.681387][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5021.681387][ T253] ___sys_sendmsg+0xee/0x170 [ 5021.681387][ T253] __sys_sendmsg+0xcd/0x170 [ 5021.681387][ T253] do_syscall_64+0xc6/0x1e0 [ 5021.681387][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5021.681387][ T253] [ 5021.683693][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5021.683693][ T253] netdev_get_by_index+0x5e/0x80 [ 5021.683693][ T253] fib6_nh_init+0x3d8/0x1580 [ 5021.683693][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5021.683693][ T253] ip6_route_add+0x1c/0x140 [ 5021.683693][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5021.683693][ T253] addrconf_add_dev+0xe2/0x170 [ 5021.683693][ T253] inet6_addr_add+0x12f/0xa40 [ 5021.683693][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5021.683693][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5021.683693][ T253] netlink_rcv_skb+0x130/0x360 [ 5021.683693][ T253] netlink_unicast+0x449/0x710 [ 5021.683693][ T253] netlink_sendmsg+0x723/0xbe0 [ 5021.683693][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5021.683693][ T253] ___sys_sendmsg+0xee/0x170 [ 5021.683693][ T253] __sys_sendmsg+0xcd/0x170 [ 5021.683693][ T253] do_syscall_64+0xc6/0x1e0 [ 5021.683693][ T253] [ 5021.685924][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5021.685924][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5021.685924][ T253] ipv6_find_idev+0x102/0x170 [ 5021.685924][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5021.685924][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5021.685924][ T253] netlink_rcv_skb+0x130/0x360 [ 5021.685924][ T253] netlink_unicast+0x449/0x710 [ 5021.685924][ T253] netlink_sendmsg+0x723/0xbe0 [ 5021.685924][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5021.685924][ T253] ___sys_sendmsg+0xee/0x170 [ 5021.685924][ T253] __sys_sendmsg+0xcd/0x170 [ 5021.685924][ T253] do_syscall_64+0xc6/0x1e0 [ 5021.685924][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5021.685924][ T253] [ 5021.687779][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5021.687779][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5021.687779][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5021.687779][ T253] ipv6_find_idev+0x102/0x170 [ 5021.687779][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5021.687779][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5021.687779][ T253] netlink_rcv_skb+0x130/0x360 [ 5021.687779][ T253] netlink_unicast+0x449/0x710 [ 5021.687779][ T253] netlink_sendmsg+0x723/0xbe0 [ 5021.687779][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5021.687779][ T253] ___sys_sendmsg+0xee/0x170 [ 5021.687779][ T253] __sys_sendmsg+0xcd/0x170 [ 5021.687779][ T253] do_syscall_64+0xc6/0x1e0 [ 5021.687779][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5021.687779][ T253] [ 5031.930324][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5031.930794][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5031.930794][ T253] dst_init+0x84/0x4a0 [ 5031.930794][ T253] dst_alloc+0x97/0x150 [ 5031.930794][ T253] ip6_dst_alloc+0x23/0x90 [ 5031.930794][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5031.930794][ T253] ip6_pol_route+0x56f/0x840 [ 5031.930794][ T253] fib6_rule_lookup+0x334/0x630 [ 5031.930794][ T253] ip6_route_output_flags+0x259/0x480 [ 5031.930794][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5031.930794][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5031.930794][ T253] netlink_rcv_skb+0x130/0x360 [ 5031.930794][ T253] netlink_unicast+0x449/0x710 [ 5031.930794][ T253] netlink_sendmsg+0x723/0xbe0 [ 5031.930794][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5031.930794][ T253] ___sys_sendmsg+0xee/0x170 [ 5031.930794][ T253] __sys_sendmsg+0xcd/0x170 [ 5031.930794][ T253] do_syscall_64+0xc6/0x1e0 [ 5031.930794][ T253] [ 5031.933014][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5031.933014][ T253] netdev_get_by_index+0x5e/0x80 [ 5031.933014][ T253] fib6_nh_init+0x3d8/0x1580 [ 5031.933014][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5031.933014][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5031.933014][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5031.933014][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5031.933014][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5031.933014][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5031.933014][ T253] addrconf_dad_begin+0x310/0x670 [ 5031.933014][ T253] addrconf_dad_work+0x10b/0xab0 [ 5031.933014][ T253] process_one_work+0x84d/0x18a0 [ 5031.933014][ T253] worker_thread+0x587/0xd30 [ 5031.933014][ T253] kthread+0x28a/0x350 [ 5031.933014][ T253] ret_from_fork+0x31/0x70 [ 5031.933014][ T253] ret_from_fork_asm+0x1a/0x30 [ 5031.933014][ T253] [ 5031.935159][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5031.935159][ T253] netdev_get_by_index+0x5e/0x80 [ 5031.935159][ T253] fib6_nh_init+0x3d8/0x1580 [ 5031.935159][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5031.935159][ T253] ip6_route_add+0x1c/0x140 [ 5031.935159][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5031.935159][ T253] inet6_addr_add+0x4f8/0xa40 [ 5031.935159][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5031.935159][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5031.935159][ T253] netlink_rcv_skb+0x130/0x360 [ 5031.935159][ T253] netlink_unicast+0x449/0x710 [ 5031.935159][ T253] netlink_sendmsg+0x723/0xbe0 [ 5031.935159][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5031.935159][ T253] ___sys_sendmsg+0xee/0x170 [ 5031.935159][ T253] __sys_sendmsg+0xcd/0x170 [ 5031.935159][ T253] do_syscall_64+0xc6/0x1e0 [ 5031.935159][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5031.935159][ T253] [ 5031.937417][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5031.937417][ T253] netdev_get_by_index+0x5e/0x80 [ 5031.937417][ T253] fib6_nh_init+0x3d8/0x1580 [ 5031.937417][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5031.937417][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5031.937417][ T253] ipv6_add_addr+0x411/0x2000 [ 5031.937417][ T253] inet6_addr_add+0x30e/0xa40 [ 5031.937417][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5031.937417][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5031.937417][ T253] netlink_rcv_skb+0x130/0x360 [ 5031.937417][ T253] netlink_unicast+0x449/0x710 [ 5031.937417][ T253] netlink_sendmsg+0x723/0xbe0 [ 5031.937417][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5031.937417][ T253] ___sys_sendmsg+0xee/0x170 [ 5031.937417][ T253] __sys_sendmsg+0xcd/0x170 [ 5031.937417][ T253] do_syscall_64+0xc6/0x1e0 [ 5031.937417][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5031.937417][ T253] [ 5031.939658][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5031.939658][ T253] netdev_get_by_index+0x5e/0x80 [ 5031.939658][ T253] fib6_nh_init+0x3d8/0x1580 [ 5031.939658][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5031.939658][ T253] ip6_route_add+0x1c/0x140 [ 5031.939658][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5031.939658][ T253] addrconf_add_dev+0xe2/0x170 [ 5031.939658][ T253] inet6_addr_add+0x12f/0xa40 [ 5031.939658][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5031.939658][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5031.939658][ T253] netlink_rcv_skb+0x130/0x360 [ 5031.939658][ T253] netlink_unicast+0x449/0x710 [ 5031.939658][ T253] netlink_sendmsg+0x723/0xbe0 [ 5031.939658][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5031.939658][ T253] ___sys_sendmsg+0xee/0x170 [ 5031.939658][ T253] __sys_sendmsg+0xcd/0x170 [ 5031.939658][ T253] do_syscall_64+0xc6/0x1e0 [ 5031.939658][ T253] [ 5031.941889][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5031.941889][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5031.941889][ T253] ipv6_find_idev+0x102/0x170 [ 5031.941889][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5031.941889][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5031.941889][ T253] netlink_rcv_skb+0x130/0x360 [ 5031.941889][ T253] netlink_unicast+0x449/0x710 [ 5031.941889][ T253] netlink_sendmsg+0x723/0xbe0 [ 5031.941889][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5031.941889][ T253] ___sys_sendmsg+0xee/0x170 [ 5031.941889][ T253] __sys_sendmsg+0xcd/0x170 [ 5031.941889][ T253] do_syscall_64+0xc6/0x1e0 [ 5031.941889][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5031.941889][ T253] [ 5031.943605][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5031.943605][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5031.943605][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5031.943605][ T253] ipv6_find_idev+0x102/0x170 [ 5031.943605][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5031.943605][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5031.943605][ T253] netlink_rcv_skb+0x130/0x360 [ 5031.943605][ T253] netlink_unicast+0x449/0x710 [ 5031.943605][ T253] netlink_sendmsg+0x723/0xbe0 [ 5031.943605][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5031.943605][ T253] ___sys_sendmsg+0xee/0x170 [ 5031.943605][ T253] __sys_sendmsg+0xcd/0x170 [ 5031.943605][ T253] do_syscall_64+0xc6/0x1e0 [ 5031.943605][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5031.943605][ T253] [ 5042.170335][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5042.170846][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5042.170846][ T253] dst_init+0x84/0x4a0 [ 5042.170846][ T253] dst_alloc+0x97/0x150 [ 5042.170846][ T253] ip6_dst_alloc+0x23/0x90 [ 5042.170846][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5042.170846][ T253] ip6_pol_route+0x56f/0x840 [ 5042.170846][ T253] fib6_rule_lookup+0x334/0x630 [ 5042.170846][ T253] ip6_route_output_flags+0x259/0x480 [ 5042.170846][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5042.170846][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5042.170846][ T253] netlink_rcv_skb+0x130/0x360 [ 5042.170846][ T253] netlink_unicast+0x449/0x710 [ 5042.170846][ T253] netlink_sendmsg+0x723/0xbe0 [ 5042.170846][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5042.170846][ T253] ___sys_sendmsg+0xee/0x170 [ 5042.170846][ T253] __sys_sendmsg+0xcd/0x170 [ 5042.170846][ T253] do_syscall_64+0xc6/0x1e0 [ 5042.170846][ T253] [ 5042.173060][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5042.173060][ T253] netdev_get_by_index+0x5e/0x80 [ 5042.173060][ T253] fib6_nh_init+0x3d8/0x1580 [ 5042.173060][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5042.173060][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5042.173060][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5042.173060][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5042.173060][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5042.173060][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5042.173060][ T253] addrconf_dad_begin+0x310/0x670 [ 5042.173060][ T253] addrconf_dad_work+0x10b/0xab0 [ 5042.173060][ T253] process_one_work+0x84d/0x18a0 [ 5042.173060][ T253] worker_thread+0x587/0xd30 [ 5042.173060][ T253] kthread+0x28a/0x350 [ 5042.173060][ T253] ret_from_fork+0x31/0x70 [ 5042.173060][ T253] ret_from_fork_asm+0x1a/0x30 [ 5042.173060][ T253] [ 5042.175215][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5042.175215][ T253] netdev_get_by_index+0x5e/0x80 [ 5042.175215][ T253] fib6_nh_init+0x3d8/0x1580 [ 5042.175215][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5042.175215][ T253] ip6_route_add+0x1c/0x140 [ 5042.175215][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5042.175215][ T253] inet6_addr_add+0x4f8/0xa40 [ 5042.175215][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5042.175215][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5042.175215][ T253] netlink_rcv_skb+0x130/0x360 [ 5042.175215][ T253] netlink_unicast+0x449/0x710 [ 5042.175215][ T253] netlink_sendmsg+0x723/0xbe0 [ 5042.175215][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5042.175215][ T253] ___sys_sendmsg+0xee/0x170 [ 5042.175215][ T253] __sys_sendmsg+0xcd/0x170 [ 5042.175215][ T253] do_syscall_64+0xc6/0x1e0 [ 5042.175215][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5042.175215][ T253] [ 5042.177481][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5042.177481][ T253] netdev_get_by_index+0x5e/0x80 [ 5042.177481][ T253] fib6_nh_init+0x3d8/0x1580 [ 5042.177481][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5042.177481][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5042.177481][ T253] ipv6_add_addr+0x411/0x2000 [ 5042.177481][ T253] inet6_addr_add+0x30e/0xa40 [ 5042.177481][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5042.177481][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5042.177481][ T253] netlink_rcv_skb+0x130/0x360 [ 5042.177481][ T253] netlink_unicast+0x449/0x710 [ 5042.177481][ T253] netlink_sendmsg+0x723/0xbe0 [ 5042.177481][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5042.177481][ T253] ___sys_sendmsg+0xee/0x170 [ 5042.177481][ T253] __sys_sendmsg+0xcd/0x170 [ 5042.177481][ T253] do_syscall_64+0xc6/0x1e0 [ 5042.177481][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5042.177481][ T253] [ 5042.179744][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5042.179744][ T253] netdev_get_by_index+0x5e/0x80 [ 5042.179744][ T253] fib6_nh_init+0x3d8/0x1580 [ 5042.179744][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5042.179744][ T253] ip6_route_add+0x1c/0x140 [ 5042.179744][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5042.179744][ T253] addrconf_add_dev+0xe2/0x170 [ 5042.179744][ T253] inet6_addr_add+0x12f/0xa40 [ 5042.179744][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5042.179744][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5042.179744][ T253] netlink_rcv_skb+0x130/0x360 [ 5042.179744][ T253] netlink_unicast+0x449/0x710 [ 5042.179744][ T253] netlink_sendmsg+0x723/0xbe0 [ 5042.179744][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5042.179744][ T253] ___sys_sendmsg+0xee/0x170 [ 5042.179744][ T253] __sys_sendmsg+0xcd/0x170 [ 5042.179744][ T253] do_syscall_64+0xc6/0x1e0 [ 5042.179744][ T253] [ 5042.181962][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5042.181962][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5042.181962][ T253] ipv6_find_idev+0x102/0x170 [ 5042.181962][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5042.181962][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5042.181962][ T253] netlink_rcv_skb+0x130/0x360 [ 5042.181962][ T253] netlink_unicast+0x449/0x710 [ 5042.181962][ T253] netlink_sendmsg+0x723/0xbe0 [ 5042.181962][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5042.181962][ T253] ___sys_sendmsg+0xee/0x170 [ 5042.181962][ T253] __sys_sendmsg+0xcd/0x170 [ 5042.181962][ T253] do_syscall_64+0xc6/0x1e0 [ 5042.181962][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5042.181962][ T253] [ 5042.183700][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5042.183700][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5042.183700][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5042.183700][ T253] ipv6_find_idev+0x102/0x170 [ 5042.183700][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5042.183700][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5042.183700][ T253] netlink_rcv_skb+0x130/0x360 [ 5042.183700][ T253] netlink_unicast+0x449/0x710 [ 5042.183700][ T253] netlink_sendmsg+0x723/0xbe0 [ 5042.183700][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5042.183700][ T253] ___sys_sendmsg+0xee/0x170 [ 5042.183700][ T253] __sys_sendmsg+0xcd/0x170 [ 5042.183700][ T253] do_syscall_64+0xc6/0x1e0 [ 5042.183700][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5042.183700][ T253] [ 5052.426223][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5052.426659][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5052.426659][ T253] dst_init+0x84/0x4a0 [ 5052.426659][ T253] dst_alloc+0x97/0x150 [ 5052.426659][ T253] ip6_dst_alloc+0x23/0x90 [ 5052.426659][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5052.426659][ T253] ip6_pol_route+0x56f/0x840 [ 5052.426659][ T253] fib6_rule_lookup+0x334/0x630 [ 5052.426659][ T253] ip6_route_output_flags+0x259/0x480 [ 5052.426659][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5052.426659][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5052.426659][ T253] netlink_rcv_skb+0x130/0x360 [ 5052.426659][ T253] netlink_unicast+0x449/0x710 [ 5052.426659][ T253] netlink_sendmsg+0x723/0xbe0 [ 5052.426659][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5052.426659][ T253] ___sys_sendmsg+0xee/0x170 [ 5052.426659][ T253] __sys_sendmsg+0xcd/0x170 [ 5052.426659][ T253] do_syscall_64+0xc6/0x1e0 [ 5052.426659][ T253] [ 5052.430144][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5052.430144][ T253] netdev_get_by_index+0x5e/0x80 [ 5052.430144][ T253] fib6_nh_init+0x3d8/0x1580 [ 5052.430144][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5052.430144][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5052.430144][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5052.430144][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5052.430144][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5052.430144][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5052.430144][ T253] addrconf_dad_begin+0x310/0x670 [ 5052.430144][ T253] addrconf_dad_work+0x10b/0xab0 [ 5052.430144][ T253] process_one_work+0x84d/0x18a0 [ 5052.430144][ T253] worker_thread+0x587/0xd30 [ 5052.430144][ T253] kthread+0x28a/0x350 [ 5052.430144][ T253] ret_from_fork+0x31/0x70 [ 5052.430144][ T253] ret_from_fork_asm+0x1a/0x30 [ 5052.430144][ T253] [ 5052.433488][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5052.433488][ T253] netdev_get_by_index+0x5e/0x80 [ 5052.433488][ T253] fib6_nh_init+0x3d8/0x1580 [ 5052.433488][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5052.433488][ T253] ip6_route_add+0x1c/0x140 [ 5052.433488][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5052.433488][ T253] inet6_addr_add+0x4f8/0xa40 [ 5052.433488][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5052.433488][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5052.433488][ T253] netlink_rcv_skb+0x130/0x360 [ 5052.433488][ T253] netlink_unicast+0x449/0x710 [ 5052.433488][ T253] netlink_sendmsg+0x723/0xbe0 [ 5052.433488][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5052.433488][ T253] ___sys_sendmsg+0xee/0x170 [ 5052.433488][ T253] __sys_sendmsg+0xcd/0x170 [ 5052.433488][ T253] do_syscall_64+0xc6/0x1e0 [ 5052.433488][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5052.433488][ T253] [ 5052.437506][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5052.437506][ T253] netdev_get_by_index+0x5e/0x80 [ 5052.437506][ T253] fib6_nh_init+0x3d8/0x1580 [ 5052.437506][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5052.437506][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5052.437506][ T253] ipv6_add_addr+0x411/0x2000 [ 5052.437506][ T253] inet6_addr_add+0x30e/0xa40 [ 5052.437506][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5052.437506][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5052.437506][ T253] netlink_rcv_skb+0x130/0x360 [ 5052.437506][ T253] netlink_unicast+0x449/0x710 [ 5052.437506][ T253] netlink_sendmsg+0x723/0xbe0 [ 5052.437506][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5052.437506][ T253] ___sys_sendmsg+0xee/0x170 [ 5052.437506][ T253] __sys_sendmsg+0xcd/0x170 [ 5052.437506][ T253] do_syscall_64+0xc6/0x1e0 [ 5052.437506][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5052.437506][ T253] [ 5052.440184][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5052.440184][ T253] netdev_get_by_index+0x5e/0x80 [ 5052.440184][ T253] fib6_nh_init+0x3d8/0x1580 [ 5052.440184][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5052.440184][ T253] ip6_route_add+0x1c/0x140 [ 5052.440184][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5052.440184][ T253] addrconf_add_dev+0xe2/0x170 [ 5052.440184][ T253] inet6_addr_add+0x12f/0xa40 [ 5052.440184][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5052.440184][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5052.440184][ T253] netlink_rcv_skb+0x130/0x360 [ 5052.440184][ T253] netlink_unicast+0x449/0x710 [ 5052.440184][ T253] netlink_sendmsg+0x723/0xbe0 [ 5052.440184][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5052.440184][ T253] ___sys_sendmsg+0xee/0x170 [ 5052.440184][ T253] __sys_sendmsg+0xcd/0x170 [ 5052.440184][ T253] do_syscall_64+0xc6/0x1e0 [ 5052.440184][ T253] [ 5052.442734][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5052.442734][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5052.442734][ T253] ipv6_find_idev+0x102/0x170 [ 5052.442734][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5052.442734][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5052.442734][ T253] netlink_rcv_skb+0x130/0x360 [ 5052.442734][ T253] netlink_unicast+0x449/0x710 [ 5052.442734][ T253] netlink_sendmsg+0x723/0xbe0 [ 5052.442734][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5052.442734][ T253] ___sys_sendmsg+0xee/0x170 [ 5052.442734][ T253] __sys_sendmsg+0xcd/0x170 [ 5052.442734][ T253] do_syscall_64+0xc6/0x1e0 [ 5052.442734][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5052.442734][ T253] [ 5052.444790][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5052.444790][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5052.444790][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5052.444790][ T253] ipv6_find_idev+0x102/0x170 [ 5052.444790][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5052.444790][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5052.444790][ T253] netlink_rcv_skb+0x130/0x360 [ 5052.444790][ T253] netlink_unicast+0x449/0x710 [ 5052.444790][ T253] netlink_sendmsg+0x723/0xbe0 [ 5052.444790][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5052.444790][ T253] ___sys_sendmsg+0xee/0x170 [ 5052.444790][ T253] __sys_sendmsg+0xcd/0x170 [ 5052.444790][ T253] do_syscall_64+0xc6/0x1e0 [ 5052.444790][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5052.444790][ T253] [ 5062.682319][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5062.682789][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5062.682789][ T253] dst_init+0x84/0x4a0 [ 5062.682789][ T253] dst_alloc+0x97/0x150 [ 5062.682789][ T253] ip6_dst_alloc+0x23/0x90 [ 5062.682789][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5062.682789][ T253] ip6_pol_route+0x56f/0x840 [ 5062.682789][ T253] fib6_rule_lookup+0x334/0x630 [ 5062.682789][ T253] ip6_route_output_flags+0x259/0x480 [ 5062.682789][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5062.682789][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5062.682789][ T253] netlink_rcv_skb+0x130/0x360 [ 5062.682789][ T253] netlink_unicast+0x449/0x710 [ 5062.682789][ T253] netlink_sendmsg+0x723/0xbe0 [ 5062.682789][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5062.682789][ T253] ___sys_sendmsg+0xee/0x170 [ 5062.682789][ T253] __sys_sendmsg+0xcd/0x170 [ 5062.682789][ T253] do_syscall_64+0xc6/0x1e0 [ 5062.682789][ T253] [ 5062.685081][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5062.685081][ T253] netdev_get_by_index+0x5e/0x80 [ 5062.685081][ T253] fib6_nh_init+0x3d8/0x1580 [ 5062.685081][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5062.685081][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5062.685081][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5062.685081][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5062.685081][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5062.685081][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5062.685081][ T253] addrconf_dad_begin+0x310/0x670 [ 5062.685081][ T253] addrconf_dad_work+0x10b/0xab0 [ 5062.685081][ T253] process_one_work+0x84d/0x18a0 [ 5062.685081][ T253] worker_thread+0x587/0xd30 [ 5062.685081][ T253] kthread+0x28a/0x350 [ 5062.685081][ T253] ret_from_fork+0x31/0x70 [ 5062.685081][ T253] ret_from_fork_asm+0x1a/0x30 [ 5062.685081][ T253] [ 5062.687249][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5062.687249][ T253] netdev_get_by_index+0x5e/0x80 [ 5062.687249][ T253] fib6_nh_init+0x3d8/0x1580 [ 5062.687249][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5062.687249][ T253] ip6_route_add+0x1c/0x140 [ 5062.687249][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5062.687249][ T253] inet6_addr_add+0x4f8/0xa40 [ 5062.687249][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5062.687249][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5062.687249][ T253] netlink_rcv_skb+0x130/0x360 [ 5062.687249][ T253] netlink_unicast+0x449/0x710 [ 5062.687249][ T253] netlink_sendmsg+0x723/0xbe0 [ 5062.687249][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5062.687249][ T253] ___sys_sendmsg+0xee/0x170 [ 5062.687249][ T253] __sys_sendmsg+0xcd/0x170 [ 5062.687249][ T253] do_syscall_64+0xc6/0x1e0 [ 5062.687249][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5062.687249][ T253] [ 5062.689504][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5062.689504][ T253] netdev_get_by_index+0x5e/0x80 [ 5062.689504][ T253] fib6_nh_init+0x3d8/0x1580 [ 5062.689504][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5062.689504][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5062.689504][ T253] ipv6_add_addr+0x411/0x2000 [ 5062.689504][ T253] inet6_addr_add+0x30e/0xa40 [ 5062.689504][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5062.689504][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5062.689504][ T253] netlink_rcv_skb+0x130/0x360 [ 5062.689504][ T253] netlink_unicast+0x449/0x710 [ 5062.689504][ T253] netlink_sendmsg+0x723/0xbe0 [ 5062.689504][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5062.689504][ T253] ___sys_sendmsg+0xee/0x170 [ 5062.689504][ T253] __sys_sendmsg+0xcd/0x170 [ 5062.689504][ T253] do_syscall_64+0xc6/0x1e0 [ 5062.689504][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5062.689504][ T253] [ 5062.691753][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5062.691753][ T253] netdev_get_by_index+0x5e/0x80 [ 5062.691753][ T253] fib6_nh_init+0x3d8/0x1580 [ 5062.691753][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5062.691753][ T253] ip6_route_add+0x1c/0x140 [ 5062.691753][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5062.691753][ T253] addrconf_add_dev+0xe2/0x170 [ 5062.691753][ T253] inet6_addr_add+0x12f/0xa40 [ 5062.691753][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5062.691753][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5062.691753][ T253] netlink_rcv_skb+0x130/0x360 [ 5062.691753][ T253] netlink_unicast+0x449/0x710 [ 5062.691753][ T253] netlink_sendmsg+0x723/0xbe0 [ 5062.691753][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5062.691753][ T253] ___sys_sendmsg+0xee/0x170 [ 5062.691753][ T253] __sys_sendmsg+0xcd/0x170 [ 5062.691753][ T253] do_syscall_64+0xc6/0x1e0 [ 5062.691753][ T253] [ 5062.693958][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5062.693958][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5062.693958][ T253] ipv6_find_idev+0x102/0x170 [ 5062.693958][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5062.693958][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5062.693958][ T253] netlink_rcv_skb+0x130/0x360 [ 5062.693958][ T253] netlink_unicast+0x449/0x710 [ 5062.693958][ T253] netlink_sendmsg+0x723/0xbe0 [ 5062.693958][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5062.693958][ T253] ___sys_sendmsg+0xee/0x170 [ 5062.693958][ T253] __sys_sendmsg+0xcd/0x170 [ 5062.693958][ T253] do_syscall_64+0xc6/0x1e0 [ 5062.693958][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5062.693958][ T253] [ 5062.695682][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5062.695682][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5062.695682][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5062.695682][ T253] ipv6_find_idev+0x102/0x170 [ 5062.695682][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5062.695682][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5062.695682][ T253] netlink_rcv_skb+0x130/0x360 [ 5062.695682][ T253] netlink_unicast+0x449/0x710 [ 5062.695682][ T253] netlink_sendmsg+0x723/0xbe0 [ 5062.695682][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5062.695682][ T253] ___sys_sendmsg+0xee/0x170 [ 5062.695682][ T253] __sys_sendmsg+0xcd/0x170 [ 5062.695682][ T253] do_syscall_64+0xc6/0x1e0 [ 5062.695682][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5062.695682][ T253] [ 5072.946309][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5072.946793][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5072.946793][ T253] dst_init+0x84/0x4a0 [ 5072.946793][ T253] dst_alloc+0x97/0x150 [ 5072.946793][ T253] ip6_dst_alloc+0x23/0x90 [ 5072.946793][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5072.946793][ T253] ip6_pol_route+0x56f/0x840 [ 5072.946793][ T253] fib6_rule_lookup+0x334/0x630 [ 5072.946793][ T253] ip6_route_output_flags+0x259/0x480 [ 5072.946793][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5072.946793][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5072.946793][ T253] netlink_rcv_skb+0x130/0x360 [ 5072.946793][ T253] netlink_unicast+0x449/0x710 [ 5072.946793][ T253] netlink_sendmsg+0x723/0xbe0 [ 5072.946793][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5072.946793][ T253] ___sys_sendmsg+0xee/0x170 [ 5072.946793][ T253] __sys_sendmsg+0xcd/0x170 [ 5072.946793][ T253] do_syscall_64+0xc6/0x1e0 [ 5072.946793][ T253] [ 5072.948996][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5072.948996][ T253] netdev_get_by_index+0x5e/0x80 [ 5072.948996][ T253] fib6_nh_init+0x3d8/0x1580 [ 5072.948996][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5072.948996][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5072.948996][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5072.948996][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5072.948996][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5072.948996][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5072.948996][ T253] addrconf_dad_begin+0x310/0x670 [ 5072.948996][ T253] addrconf_dad_work+0x10b/0xab0 [ 5072.948996][ T253] process_one_work+0x84d/0x18a0 [ 5072.948996][ T253] worker_thread+0x587/0xd30 [ 5072.948996][ T253] kthread+0x28a/0x350 [ 5072.948996][ T253] ret_from_fork+0x31/0x70 [ 5072.948996][ T253] ret_from_fork_asm+0x1a/0x30 [ 5072.948996][ T253] [ 5072.951148][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5072.951148][ T253] netdev_get_by_index+0x5e/0x80 [ 5072.951148][ T253] fib6_nh_init+0x3d8/0x1580 [ 5072.951148][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5072.951148][ T253] ip6_route_add+0x1c/0x140 [ 5072.951148][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5072.951148][ T253] inet6_addr_add+0x4f8/0xa40 [ 5072.951148][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5072.951148][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5072.951148][ T253] netlink_rcv_skb+0x130/0x360 [ 5072.951148][ T253] netlink_unicast+0x449/0x710 [ 5072.951148][ T253] netlink_sendmsg+0x723/0xbe0 [ 5072.951148][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5072.951148][ T253] ___sys_sendmsg+0xee/0x170 [ 5072.951148][ T253] __sys_sendmsg+0xcd/0x170 [ 5072.951148][ T253] do_syscall_64+0xc6/0x1e0 [ 5072.951148][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5072.951148][ T253] [ 5072.953396][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5072.953396][ T253] netdev_get_by_index+0x5e/0x80 [ 5072.953396][ T253] fib6_nh_init+0x3d8/0x1580 [ 5072.953396][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5072.953396][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5072.953396][ T253] ipv6_add_addr+0x411/0x2000 [ 5072.953396][ T253] inet6_addr_add+0x30e/0xa40 [ 5072.953396][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5072.953396][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5072.953396][ T253] netlink_rcv_skb+0x130/0x360 [ 5072.953396][ T253] netlink_unicast+0x449/0x710 [ 5072.953396][ T253] netlink_sendmsg+0x723/0xbe0 [ 5072.953396][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5072.953396][ T253] ___sys_sendmsg+0xee/0x170 [ 5072.953396][ T253] __sys_sendmsg+0xcd/0x170 [ 5072.953396][ T253] do_syscall_64+0xc6/0x1e0 [ 5072.953396][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5072.953396][ T253] [ 5072.955783][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5072.955783][ T253] netdev_get_by_index+0x5e/0x80 [ 5072.955783][ T253] fib6_nh_init+0x3d8/0x1580 [ 5072.955783][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5072.955783][ T253] ip6_route_add+0x1c/0x140 [ 5072.955783][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5072.955783][ T253] addrconf_add_dev+0xe2/0x170 [ 5072.955783][ T253] inet6_addr_add+0x12f/0xa40 [ 5072.955783][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5072.955783][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5072.955783][ T253] netlink_rcv_skb+0x130/0x360 [ 5072.955783][ T253] netlink_unicast+0x449/0x710 [ 5072.955783][ T253] netlink_sendmsg+0x723/0xbe0 [ 5072.955783][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5072.955783][ T253] ___sys_sendmsg+0xee/0x170 [ 5072.955783][ T253] __sys_sendmsg+0xcd/0x170 [ 5072.955783][ T253] do_syscall_64+0xc6/0x1e0 [ 5072.955783][ T253] [ 5072.958240][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5072.958240][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5072.958240][ T253] ipv6_find_idev+0x102/0x170 [ 5072.958240][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5072.958240][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5072.958240][ T253] netlink_rcv_skb+0x130/0x360 [ 5072.958240][ T253] netlink_unicast+0x449/0x710 [ 5072.958240][ T253] netlink_sendmsg+0x723/0xbe0 [ 5072.958240][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5072.958240][ T253] ___sys_sendmsg+0xee/0x170 [ 5072.958240][ T253] __sys_sendmsg+0xcd/0x170 [ 5072.958240][ T253] do_syscall_64+0xc6/0x1e0 [ 5072.958240][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5072.958240][ T253] [ 5072.960136][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5072.960136][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5072.960136][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5072.960136][ T253] ipv6_find_idev+0x102/0x170 [ 5072.960136][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5072.960136][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5072.960136][ T253] netlink_rcv_skb+0x130/0x360 [ 5072.960136][ T253] netlink_unicast+0x449/0x710 [ 5072.960136][ T253] netlink_sendmsg+0x723/0xbe0 [ 5072.960136][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5072.960136][ T253] ___sys_sendmsg+0xee/0x170 [ 5072.960136][ T253] __sys_sendmsg+0xcd/0x170 [ 5072.960136][ T253] do_syscall_64+0xc6/0x1e0 [ 5072.960136][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5072.960136][ T253] [ 5083.210334][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5083.210787][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5083.210787][ T253] dst_init+0x84/0x4a0 [ 5083.210787][ T253] dst_alloc+0x97/0x150 [ 5083.210787][ T253] ip6_dst_alloc+0x23/0x90 [ 5083.210787][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5083.210787][ T253] ip6_pol_route+0x56f/0x840 [ 5083.210787][ T253] fib6_rule_lookup+0x334/0x630 [ 5083.210787][ T253] ip6_route_output_flags+0x259/0x480 [ 5083.210787][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5083.210787][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5083.210787][ T253] netlink_rcv_skb+0x130/0x360 [ 5083.210787][ T253] netlink_unicast+0x449/0x710 [ 5083.210787][ T253] netlink_sendmsg+0x723/0xbe0 [ 5083.210787][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5083.210787][ T253] ___sys_sendmsg+0xee/0x170 [ 5083.210787][ T253] __sys_sendmsg+0xcd/0x170 [ 5083.210787][ T253] do_syscall_64+0xc6/0x1e0 [ 5083.210787][ T253] [ 5083.213209][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5083.213209][ T253] netdev_get_by_index+0x5e/0x80 [ 5083.213209][ T253] fib6_nh_init+0x3d8/0x1580 [ 5083.213209][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5083.213209][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5083.213209][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5083.213209][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5083.213209][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5083.213209][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5083.213209][ T253] addrconf_dad_begin+0x310/0x670 [ 5083.213209][ T253] addrconf_dad_work+0x10b/0xab0 [ 5083.213209][ T253] process_one_work+0x84d/0x18a0 [ 5083.213209][ T253] worker_thread+0x587/0xd30 [ 5083.213209][ T253] kthread+0x28a/0x350 [ 5083.213209][ T253] ret_from_fork+0x31/0x70 [ 5083.213209][ T253] ret_from_fork_asm+0x1a/0x30 [ 5083.213209][ T253] [ 5083.215450][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5083.215450][ T253] netdev_get_by_index+0x5e/0x80 [ 5083.215450][ T253] fib6_nh_init+0x3d8/0x1580 [ 5083.215450][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5083.215450][ T253] ip6_route_add+0x1c/0x140 [ 5083.215450][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5083.215450][ T253] inet6_addr_add+0x4f8/0xa40 [ 5083.215450][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5083.215450][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5083.215450][ T253] netlink_rcv_skb+0x130/0x360 [ 5083.215450][ T253] netlink_unicast+0x449/0x710 [ 5083.215450][ T253] netlink_sendmsg+0x723/0xbe0 [ 5083.215450][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5083.215450][ T253] ___sys_sendmsg+0xee/0x170 [ 5083.215450][ T253] __sys_sendmsg+0xcd/0x170 [ 5083.215450][ T253] do_syscall_64+0xc6/0x1e0 [ 5083.215450][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5083.215450][ T253] [ 5083.217719][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5083.217719][ T253] netdev_get_by_index+0x5e/0x80 [ 5083.217719][ T253] fib6_nh_init+0x3d8/0x1580 [ 5083.217719][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5083.217719][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5083.217719][ T253] ipv6_add_addr+0x411/0x2000 [ 5083.217719][ T253] inet6_addr_add+0x30e/0xa40 [ 5083.217719][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5083.217719][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5083.217719][ T253] netlink_rcv_skb+0x130/0x360 [ 5083.217719][ T253] netlink_unicast+0x449/0x710 [ 5083.217719][ T253] netlink_sendmsg+0x723/0xbe0 [ 5083.217719][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5083.217719][ T253] ___sys_sendmsg+0xee/0x170 [ 5083.217719][ T253] __sys_sendmsg+0xcd/0x170 [ 5083.217719][ T253] do_syscall_64+0xc6/0x1e0 [ 5083.217719][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5083.217719][ T253] [ 5083.219966][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5083.219966][ T253] netdev_get_by_index+0x5e/0x80 [ 5083.219966][ T253] fib6_nh_init+0x3d8/0x1580 [ 5083.219966][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5083.219966][ T253] ip6_route_add+0x1c/0x140 [ 5083.219966][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5083.219966][ T253] addrconf_add_dev+0xe2/0x170 [ 5083.219966][ T253] inet6_addr_add+0x12f/0xa40 [ 5083.219966][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5083.219966][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5083.219966][ T253] netlink_rcv_skb+0x130/0x360 [ 5083.219966][ T253] netlink_unicast+0x449/0x710 [ 5083.219966][ T253] netlink_sendmsg+0x723/0xbe0 [ 5083.219966][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5083.219966][ T253] ___sys_sendmsg+0xee/0x170 [ 5083.219966][ T253] __sys_sendmsg+0xcd/0x170 [ 5083.219966][ T253] do_syscall_64+0xc6/0x1e0 [ 5083.219966][ T253] [ 5083.222171][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5083.222171][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5083.222171][ T253] ipv6_find_idev+0x102/0x170 [ 5083.222171][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5083.222171][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5083.222171][ T253] netlink_rcv_skb+0x130/0x360 [ 5083.222171][ T253] netlink_unicast+0x449/0x710 [ 5083.222171][ T253] netlink_sendmsg+0x723/0xbe0 [ 5083.222171][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5083.222171][ T253] ___sys_sendmsg+0xee/0x170 [ 5083.222171][ T253] __sys_sendmsg+0xcd/0x170 [ 5083.222171][ T253] do_syscall_64+0xc6/0x1e0 [ 5083.222171][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5083.222171][ T253] [ 5083.223901][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5083.223901][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5083.223901][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5083.223901][ T253] ipv6_find_idev+0x102/0x170 [ 5083.223901][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5083.223901][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5083.223901][ T253] netlink_rcv_skb+0x130/0x360 [ 5083.223901][ T253] netlink_unicast+0x449/0x710 [ 5083.223901][ T253] netlink_sendmsg+0x723/0xbe0 [ 5083.223901][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5083.223901][ T253] ___sys_sendmsg+0xee/0x170 [ 5083.223901][ T253] __sys_sendmsg+0xcd/0x170 [ 5083.223901][ T253] do_syscall_64+0xc6/0x1e0 [ 5083.223901][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5083.223901][ T253] [ 5093.362312][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5093.362731][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5093.362731][ T253] dst_init+0x84/0x4a0 [ 5093.362731][ T253] dst_alloc+0x97/0x150 [ 5093.362731][ T253] ip6_dst_alloc+0x23/0x90 [ 5093.362731][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5093.362731][ T253] ip6_pol_route+0x56f/0x840 [ 5093.362731][ T253] fib6_rule_lookup+0x334/0x630 [ 5093.362731][ T253] ip6_route_output_flags+0x259/0x480 [ 5093.362731][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5093.362731][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5093.362731][ T253] netlink_rcv_skb+0x130/0x360 [ 5093.362731][ T253] netlink_unicast+0x449/0x710 [ 5093.362731][ T253] netlink_sendmsg+0x723/0xbe0 [ 5093.362731][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5093.362731][ T253] ___sys_sendmsg+0xee/0x170 [ 5093.362731][ T253] __sys_sendmsg+0xcd/0x170 [ 5093.362731][ T253] do_syscall_64+0xc6/0x1e0 [ 5093.362731][ T253] [ 5093.364919][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5093.364919][ T253] netdev_get_by_index+0x5e/0x80 [ 5093.364919][ T253] fib6_nh_init+0x3d8/0x1580 [ 5093.364919][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5093.364919][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5093.364919][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5093.364919][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5093.364919][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5093.364919][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5093.364919][ T253] addrconf_dad_begin+0x310/0x670 [ 5093.364919][ T253] addrconf_dad_work+0x10b/0xab0 [ 5093.364919][ T253] process_one_work+0x84d/0x18a0 [ 5093.364919][ T253] worker_thread+0x587/0xd30 [ 5093.364919][ T253] kthread+0x28a/0x350 [ 5093.364919][ T253] ret_from_fork+0x31/0x70 [ 5093.364919][ T253] ret_from_fork_asm+0x1a/0x30 [ 5093.364919][ T253] [ 5093.367062][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5093.367062][ T253] netdev_get_by_index+0x5e/0x80 [ 5093.367062][ T253] fib6_nh_init+0x3d8/0x1580 [ 5093.367062][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5093.367062][ T253] ip6_route_add+0x1c/0x140 [ 5093.367062][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5093.367062][ T253] inet6_addr_add+0x4f8/0xa40 [ 5093.367062][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5093.367062][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5093.367062][ T253] netlink_rcv_skb+0x130/0x360 [ 5093.367062][ T253] netlink_unicast+0x449/0x710 [ 5093.367062][ T253] netlink_sendmsg+0x723/0xbe0 [ 5093.367062][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5093.367062][ T253] ___sys_sendmsg+0xee/0x170 [ 5093.367062][ T253] __sys_sendmsg+0xcd/0x170 [ 5093.367062][ T253] do_syscall_64+0xc6/0x1e0 [ 5093.367062][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5093.367062][ T253] [ 5093.369295][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5093.369295][ T253] netdev_get_by_index+0x5e/0x80 [ 5093.369295][ T253] fib6_nh_init+0x3d8/0x1580 [ 5093.369295][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5093.369295][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5093.369295][ T253] ipv6_add_addr+0x411/0x2000 [ 5093.369295][ T253] inet6_addr_add+0x30e/0xa40 [ 5093.369295][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5093.369295][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5093.369295][ T253] netlink_rcv_skb+0x130/0x360 [ 5093.369295][ T253] netlink_unicast+0x449/0x710 [ 5093.369295][ T253] netlink_sendmsg+0x723/0xbe0 [ 5093.369295][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5093.369295][ T253] ___sys_sendmsg+0xee/0x170 [ 5093.369295][ T253] __sys_sendmsg+0xcd/0x170 [ 5093.369295][ T253] do_syscall_64+0xc6/0x1e0 [ 5093.369295][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5093.369295][ T253] [ 5093.371531][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5093.371531][ T253] netdev_get_by_index+0x5e/0x80 [ 5093.371531][ T253] fib6_nh_init+0x3d8/0x1580 [ 5093.371531][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5093.371531][ T253] ip6_route_add+0x1c/0x140 [ 5093.371531][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5093.371531][ T253] addrconf_add_dev+0xe2/0x170 [ 5093.371531][ T253] inet6_addr_add+0x12f/0xa40 [ 5093.371531][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5093.371531][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5093.371531][ T253] netlink_rcv_skb+0x130/0x360 [ 5093.371531][ T253] netlink_unicast+0x449/0x710 [ 5093.371531][ T253] netlink_sendmsg+0x723/0xbe0 [ 5093.371531][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5093.371531][ T253] ___sys_sendmsg+0xee/0x170 [ 5093.371531][ T253] __sys_sendmsg+0xcd/0x170 [ 5093.371531][ T253] do_syscall_64+0xc6/0x1e0 [ 5093.371531][ T253] [ 5093.373729][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5093.373729][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5093.373729][ T253] ipv6_find_idev+0x102/0x170 [ 5093.373729][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5093.373729][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5093.373729][ T253] netlink_rcv_skb+0x130/0x360 [ 5093.373729][ T253] netlink_unicast+0x449/0x710 [ 5093.373729][ T253] netlink_sendmsg+0x723/0xbe0 [ 5093.373729][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5093.373729][ T253] ___sys_sendmsg+0xee/0x170 [ 5093.373729][ T253] __sys_sendmsg+0xcd/0x170 [ 5093.373729][ T253] do_syscall_64+0xc6/0x1e0 [ 5093.373729][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5093.373729][ T253] [ 5093.375447][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5093.375447][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5093.375447][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5093.375447][ T253] ipv6_find_idev+0x102/0x170 [ 5093.375447][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5093.375447][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5093.375447][ T253] netlink_rcv_skb+0x130/0x360 [ 5093.375447][ T253] netlink_unicast+0x449/0x710 [ 5093.375447][ T253] netlink_sendmsg+0x723/0xbe0 [ 5093.375447][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5093.375447][ T253] ___sys_sendmsg+0xee/0x170 [ 5093.375447][ T253] __sys_sendmsg+0xcd/0x170 [ 5093.375447][ T253] do_syscall_64+0xc6/0x1e0 [ 5093.375447][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5093.375447][ T253] [ 5103.618250][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5103.618672][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5103.618672][ T253] dst_init+0x84/0x4a0 [ 5103.618672][ T253] dst_alloc+0x97/0x150 [ 5103.618672][ T253] ip6_dst_alloc+0x23/0x90 [ 5103.618672][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5103.618672][ T253] ip6_pol_route+0x56f/0x840 [ 5103.618672][ T253] fib6_rule_lookup+0x334/0x630 [ 5103.618672][ T253] ip6_route_output_flags+0x259/0x480 [ 5103.618672][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5103.618672][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5103.618672][ T253] netlink_rcv_skb+0x130/0x360 [ 5103.618672][ T253] netlink_unicast+0x449/0x710 [ 5103.618672][ T253] netlink_sendmsg+0x723/0xbe0 [ 5103.618672][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5103.618672][ T253] ___sys_sendmsg+0xee/0x170 [ 5103.618672][ T253] __sys_sendmsg+0xcd/0x170 [ 5103.618672][ T253] do_syscall_64+0xc6/0x1e0 [ 5103.618672][ T253] [ 5103.620887][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5103.620887][ T253] netdev_get_by_index+0x5e/0x80 [ 5103.620887][ T253] fib6_nh_init+0x3d8/0x1580 [ 5103.620887][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5103.620887][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5103.620887][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5103.620887][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5103.620887][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5103.620887][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5103.620887][ T253] addrconf_dad_begin+0x310/0x670 [ 5103.620887][ T253] addrconf_dad_work+0x10b/0xab0 [ 5103.620887][ T253] process_one_work+0x84d/0x18a0 [ 5103.620887][ T253] worker_thread+0x587/0xd30 [ 5103.620887][ T253] kthread+0x28a/0x350 [ 5103.620887][ T253] ret_from_fork+0x31/0x70 [ 5103.620887][ T253] ret_from_fork_asm+0x1a/0x30 [ 5103.620887][ T253] [ 5103.623063][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5103.623063][ T253] netdev_get_by_index+0x5e/0x80 [ 5103.623063][ T253] fib6_nh_init+0x3d8/0x1580 [ 5103.623063][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5103.623063][ T253] ip6_route_add+0x1c/0x140 [ 5103.623063][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5103.623063][ T253] inet6_addr_add+0x4f8/0xa40 [ 5103.623063][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5103.623063][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5103.623063][ T253] netlink_rcv_skb+0x130/0x360 [ 5103.623063][ T253] netlink_unicast+0x449/0x710 [ 5103.623063][ T253] netlink_sendmsg+0x723/0xbe0 [ 5103.623063][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5103.623063][ T253] ___sys_sendmsg+0xee/0x170 [ 5103.623063][ T253] __sys_sendmsg+0xcd/0x170 [ 5103.623063][ T253] do_syscall_64+0xc6/0x1e0 [ 5103.623063][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5103.623063][ T253] [ 5103.625337][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5103.625337][ T253] netdev_get_by_index+0x5e/0x80 [ 5103.625337][ T253] fib6_nh_init+0x3d8/0x1580 [ 5103.625337][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5103.625337][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5103.625337][ T253] ipv6_add_addr+0x411/0x2000 [ 5103.625337][ T253] inet6_addr_add+0x30e/0xa40 [ 5103.625337][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5103.625337][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5103.625337][ T253] netlink_rcv_skb+0x130/0x360 [ 5103.625337][ T253] netlink_unicast+0x449/0x710 [ 5103.625337][ T253] netlink_sendmsg+0x723/0xbe0 [ 5103.625337][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5103.625337][ T253] ___sys_sendmsg+0xee/0x170 [ 5103.625337][ T253] __sys_sendmsg+0xcd/0x170 [ 5103.625337][ T253] do_syscall_64+0xc6/0x1e0 [ 5103.625337][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5103.625337][ T253] [ 5103.627604][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5103.627604][ T253] netdev_get_by_index+0x5e/0x80 [ 5103.627604][ T253] fib6_nh_init+0x3d8/0x1580 [ 5103.627604][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5103.627604][ T253] ip6_route_add+0x1c/0x140 [ 5103.627604][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5103.627604][ T253] addrconf_add_dev+0xe2/0x170 [ 5103.627604][ T253] inet6_addr_add+0x12f/0xa40 [ 5103.627604][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5103.627604][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5103.627604][ T253] netlink_rcv_skb+0x130/0x360 [ 5103.627604][ T253] netlink_unicast+0x449/0x710 [ 5103.627604][ T253] netlink_sendmsg+0x723/0xbe0 [ 5103.627604][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5103.627604][ T253] ___sys_sendmsg+0xee/0x170 [ 5103.627604][ T253] __sys_sendmsg+0xcd/0x170 [ 5103.627604][ T253] do_syscall_64+0xc6/0x1e0 [ 5103.627604][ T253] [ 5103.629823][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5103.629823][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5103.629823][ T253] ipv6_find_idev+0x102/0x170 [ 5103.629823][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5103.629823][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5103.629823][ T253] netlink_rcv_skb+0x130/0x360 [ 5103.629823][ T253] netlink_unicast+0x449/0x710 [ 5103.629823][ T253] netlink_sendmsg+0x723/0xbe0 [ 5103.629823][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5103.629823][ T253] ___sys_sendmsg+0xee/0x170 [ 5103.629823][ T253] __sys_sendmsg+0xcd/0x170 [ 5103.629823][ T253] do_syscall_64+0xc6/0x1e0 [ 5103.629823][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5103.629823][ T253] [ 5103.631787][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5103.631787][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5103.631787][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5103.631787][ T253] ipv6_find_idev+0x102/0x170 [ 5103.631787][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5103.631787][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5103.631787][ T253] netlink_rcv_skb+0x130/0x360 [ 5103.631787][ T253] netlink_unicast+0x449/0x710 [ 5103.631787][ T253] netlink_sendmsg+0x723/0xbe0 [ 5103.631787][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5103.631787][ T253] ___sys_sendmsg+0xee/0x170 [ 5103.631787][ T253] __sys_sendmsg+0xcd/0x170 [ 5103.631787][ T253] do_syscall_64+0xc6/0x1e0 [ 5103.631787][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5103.631787][ T253] [ 5113.810311][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5113.810787][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5113.810787][ T253] dst_init+0x84/0x4a0 [ 5113.810787][ T253] dst_alloc+0x97/0x150 [ 5113.810787][ T253] ip6_dst_alloc+0x23/0x90 [ 5113.810787][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5113.810787][ T253] ip6_pol_route+0x56f/0x840 [ 5113.810787][ T253] fib6_rule_lookup+0x334/0x630 [ 5113.810787][ T253] ip6_route_output_flags+0x259/0x480 [ 5113.810787][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5113.810787][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5113.810787][ T253] netlink_rcv_skb+0x130/0x360 [ 5113.810787][ T253] netlink_unicast+0x449/0x710 [ 5113.810787][ T253] netlink_sendmsg+0x723/0xbe0 [ 5113.810787][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5113.810787][ T253] ___sys_sendmsg+0xee/0x170 [ 5113.810787][ T253] __sys_sendmsg+0xcd/0x170 [ 5113.810787][ T253] do_syscall_64+0xc6/0x1e0 [ 5113.810787][ T253] [ 5113.813451][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5113.813451][ T253] netdev_get_by_index+0x5e/0x80 [ 5113.813451][ T253] fib6_nh_init+0x3d8/0x1580 [ 5113.813451][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5113.813451][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5113.813451][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5113.813451][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5113.813451][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5113.813451][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5113.813451][ T253] addrconf_dad_begin+0x310/0x670 [ 5113.813451][ T253] addrconf_dad_work+0x10b/0xab0 [ 5113.813451][ T253] process_one_work+0x84d/0x18a0 [ 5113.813451][ T253] worker_thread+0x587/0xd30 [ 5113.813451][ T253] kthread+0x28a/0x350 [ 5113.813451][ T253] ret_from_fork+0x31/0x70 [ 5113.813451][ T253] ret_from_fork_asm+0x1a/0x30 [ 5113.813451][ T253] [ 5113.816052][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5113.816052][ T253] netdev_get_by_index+0x5e/0x80 [ 5113.816052][ T253] fib6_nh_init+0x3d8/0x1580 [ 5113.816052][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5113.816052][ T253] ip6_route_add+0x1c/0x140 [ 5113.816052][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5113.816052][ T253] inet6_addr_add+0x4f8/0xa40 [ 5113.816052][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5113.816052][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5113.816052][ T253] netlink_rcv_skb+0x130/0x360 [ 5113.816052][ T253] netlink_unicast+0x449/0x710 [ 5113.816052][ T253] netlink_sendmsg+0x723/0xbe0 [ 5113.816052][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5113.816052][ T253] ___sys_sendmsg+0xee/0x170 [ 5113.816052][ T253] __sys_sendmsg+0xcd/0x170 [ 5113.816052][ T253] do_syscall_64+0xc6/0x1e0 [ 5113.816052][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5113.816052][ T253] [ 5113.818772][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5113.818772][ T253] netdev_get_by_index+0x5e/0x80 [ 5113.818772][ T253] fib6_nh_init+0x3d8/0x1580 [ 5113.818772][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5113.818772][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5113.818772][ T253] ipv6_add_addr+0x411/0x2000 [ 5113.818772][ T253] inet6_addr_add+0x30e/0xa40 [ 5113.818772][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5113.818772][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5113.818772][ T253] netlink_rcv_skb+0x130/0x360 [ 5113.818772][ T253] netlink_unicast+0x449/0x710 [ 5113.818772][ T253] netlink_sendmsg+0x723/0xbe0 [ 5113.818772][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5113.818772][ T253] ___sys_sendmsg+0xee/0x170 [ 5113.818772][ T253] __sys_sendmsg+0xcd/0x170 [ 5113.818772][ T253] do_syscall_64+0xc6/0x1e0 [ 5113.818772][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5113.818772][ T253] [ 5113.821482][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5113.821482][ T253] netdev_get_by_index+0x5e/0x80 [ 5113.821482][ T253] fib6_nh_init+0x3d8/0x1580 [ 5113.821482][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5113.821482][ T253] ip6_route_add+0x1c/0x140 [ 5113.821482][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5113.821482][ T253] addrconf_add_dev+0xe2/0x170 [ 5113.821482][ T253] inet6_addr_add+0x12f/0xa40 [ 5113.821482][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5113.821482][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5113.821482][ T253] netlink_rcv_skb+0x130/0x360 [ 5113.821482][ T253] netlink_unicast+0x449/0x710 [ 5113.821482][ T253] netlink_sendmsg+0x723/0xbe0 [ 5113.821482][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5113.821482][ T253] ___sys_sendmsg+0xee/0x170 [ 5113.821482][ T253] __sys_sendmsg+0xcd/0x170 [ 5113.821482][ T253] do_syscall_64+0xc6/0x1e0 [ 5113.821482][ T253] [ 5113.824158][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5113.824158][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5113.824158][ T253] ipv6_find_idev+0x102/0x170 [ 5113.824158][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5113.824158][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5113.824158][ T253] netlink_rcv_skb+0x130/0x360 [ 5113.824158][ T253] netlink_unicast+0x449/0x710 [ 5113.824158][ T253] netlink_sendmsg+0x723/0xbe0 [ 5113.824158][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5113.824158][ T253] ___sys_sendmsg+0xee/0x170 [ 5113.824158][ T253] __sys_sendmsg+0xcd/0x170 [ 5113.824158][ T253] do_syscall_64+0xc6/0x1e0 [ 5113.824158][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5113.824158][ T253] [ 5113.826280][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5113.826280][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5113.826280][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5113.826280][ T253] ipv6_find_idev+0x102/0x170 [ 5113.826280][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5113.826280][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5113.826280][ T253] netlink_rcv_skb+0x130/0x360 [ 5113.826280][ T253] netlink_unicast+0x449/0x710 [ 5113.826280][ T253] netlink_sendmsg+0x723/0xbe0 [ 5113.826280][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5113.826280][ T253] ___sys_sendmsg+0xee/0x170 [ 5113.826280][ T253] __sys_sendmsg+0xcd/0x170 [ 5113.826280][ T253] do_syscall_64+0xc6/0x1e0 [ 5113.826280][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5113.826280][ T253] [ 5124.066370][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5124.066854][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5124.066854][ T253] dst_init+0x84/0x4a0 [ 5124.066854][ T253] dst_alloc+0x97/0x150 [ 5124.066854][ T253] ip6_dst_alloc+0x23/0x90 [ 5124.066854][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5124.066854][ T253] ip6_pol_route+0x56f/0x840 [ 5124.066854][ T253] fib6_rule_lookup+0x334/0x630 [ 5124.066854][ T253] ip6_route_output_flags+0x259/0x480 [ 5124.066854][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5124.066854][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5124.066854][ T253] netlink_rcv_skb+0x130/0x360 [ 5124.066854][ T253] netlink_unicast+0x449/0x710 [ 5124.066854][ T253] netlink_sendmsg+0x723/0xbe0 [ 5124.066854][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5124.066854][ T253] ___sys_sendmsg+0xee/0x170 [ 5124.066854][ T253] __sys_sendmsg+0xcd/0x170 [ 5124.066854][ T253] do_syscall_64+0xc6/0x1e0 [ 5124.066854][ T253] [ 5124.069515][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5124.069515][ T253] netdev_get_by_index+0x5e/0x80 [ 5124.069515][ T253] fib6_nh_init+0x3d8/0x1580 [ 5124.069515][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5124.069515][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5124.069515][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5124.069515][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5124.069515][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5124.069515][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5124.069515][ T253] addrconf_dad_begin+0x310/0x670 [ 5124.069515][ T253] addrconf_dad_work+0x10b/0xab0 [ 5124.069515][ T253] process_one_work+0x84d/0x18a0 [ 5124.069515][ T253] worker_thread+0x587/0xd30 [ 5124.069515][ T253] kthread+0x28a/0x350 [ 5124.069515][ T253] ret_from_fork+0x31/0x70 [ 5124.069515][ T253] ret_from_fork_asm+0x1a/0x30 [ 5124.069515][ T253] [ 5124.072123][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5124.072123][ T253] netdev_get_by_index+0x5e/0x80 [ 5124.072123][ T253] fib6_nh_init+0x3d8/0x1580 [ 5124.072123][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5124.072123][ T253] ip6_route_add+0x1c/0x140 [ 5124.072123][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5124.072123][ T253] inet6_addr_add+0x4f8/0xa40 [ 5124.072123][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5124.072123][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5124.072123][ T253] netlink_rcv_skb+0x130/0x360 [ 5124.072123][ T253] netlink_unicast+0x449/0x710 [ 5124.072123][ T253] netlink_sendmsg+0x723/0xbe0 [ 5124.072123][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5124.072123][ T253] ___sys_sendmsg+0xee/0x170 [ 5124.072123][ T253] __sys_sendmsg+0xcd/0x170 [ 5124.072123][ T253] do_syscall_64+0xc6/0x1e0 [ 5124.072123][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5124.072123][ T253] [ 5124.074833][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5124.074833][ T253] netdev_get_by_index+0x5e/0x80 [ 5124.074833][ T253] fib6_nh_init+0x3d8/0x1580 [ 5124.074833][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5124.074833][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5124.074833][ T253] ipv6_add_addr+0x411/0x2000 [ 5124.074833][ T253] inet6_addr_add+0x30e/0xa40 [ 5124.074833][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5124.074833][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5124.074833][ T253] netlink_rcv_skb+0x130/0x360 [ 5124.074833][ T253] netlink_unicast+0x449/0x710 [ 5124.074833][ T253] netlink_sendmsg+0x723/0xbe0 [ 5124.074833][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5124.074833][ T253] ___sys_sendmsg+0xee/0x170 [ 5124.074833][ T253] __sys_sendmsg+0xcd/0x170 [ 5124.074833][ T253] do_syscall_64+0xc6/0x1e0 [ 5124.074833][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5124.074833][ T253] [ 5124.077563][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5124.077563][ T253] netdev_get_by_index+0x5e/0x80 [ 5124.077563][ T253] fib6_nh_init+0x3d8/0x1580 [ 5124.077563][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5124.077563][ T253] ip6_route_add+0x1c/0x140 [ 5124.077563][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5124.077563][ T253] addrconf_add_dev+0xe2/0x170 [ 5124.077563][ T253] inet6_addr_add+0x12f/0xa40 [ 5124.077563][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5124.077563][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5124.077563][ T253] netlink_rcv_skb+0x130/0x360 [ 5124.077563][ T253] netlink_unicast+0x449/0x710 [ 5124.077563][ T253] netlink_sendmsg+0x723/0xbe0 [ 5124.077563][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5124.077563][ T253] ___sys_sendmsg+0xee/0x170 [ 5124.077563][ T253] __sys_sendmsg+0xcd/0x170 [ 5124.077563][ T253] do_syscall_64+0xc6/0x1e0 [ 5124.077563][ T253] [ 5124.080236][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5124.080236][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5124.080236][ T253] ipv6_find_idev+0x102/0x170 [ 5124.080236][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5124.080236][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5124.080236][ T253] netlink_rcv_skb+0x130/0x360 [ 5124.080236][ T253] netlink_unicast+0x449/0x710 [ 5124.080236][ T253] netlink_sendmsg+0x723/0xbe0 [ 5124.080236][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5124.080236][ T253] ___sys_sendmsg+0xee/0x170 [ 5124.080236][ T253] __sys_sendmsg+0xcd/0x170 [ 5124.080236][ T253] do_syscall_64+0xc6/0x1e0 [ 5124.080236][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5124.080236][ T253] [ 5124.082327][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5124.082327][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5124.082327][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5124.082327][ T253] ipv6_find_idev+0x102/0x170 [ 5124.082327][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5124.082327][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5124.082327][ T253] netlink_rcv_skb+0x130/0x360 [ 5124.082327][ T253] netlink_unicast+0x449/0x710 [ 5124.082327][ T253] netlink_sendmsg+0x723/0xbe0 [ 5124.082327][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5124.082327][ T253] ___sys_sendmsg+0xee/0x170 [ 5124.082327][ T253] __sys_sendmsg+0xcd/0x170 [ 5124.082327][ T253] do_syscall_64+0xc6/0x1e0 [ 5124.082327][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5124.082327][ T253] [ 5134.322315][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5134.322802][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5134.322802][ T253] dst_init+0x84/0x4a0 [ 5134.322802][ T253] dst_alloc+0x97/0x150 [ 5134.322802][ T253] ip6_dst_alloc+0x23/0x90 [ 5134.322802][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5134.322802][ T253] ip6_pol_route+0x56f/0x840 [ 5134.322802][ T253] fib6_rule_lookup+0x334/0x630 [ 5134.322802][ T253] ip6_route_output_flags+0x259/0x480 [ 5134.322802][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5134.322802][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5134.322802][ T253] netlink_rcv_skb+0x130/0x360 [ 5134.322802][ T253] netlink_unicast+0x449/0x710 [ 5134.322802][ T253] netlink_sendmsg+0x723/0xbe0 [ 5134.322802][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5134.322802][ T253] ___sys_sendmsg+0xee/0x170 [ 5134.322802][ T253] __sys_sendmsg+0xcd/0x170 [ 5134.322802][ T253] do_syscall_64+0xc6/0x1e0 [ 5134.322802][ T253] [ 5134.325464][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5134.325464][ T253] netdev_get_by_index+0x5e/0x80 [ 5134.325464][ T253] fib6_nh_init+0x3d8/0x1580 [ 5134.325464][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5134.325464][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5134.325464][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5134.325464][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5134.325464][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5134.325464][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5134.325464][ T253] addrconf_dad_begin+0x310/0x670 [ 5134.325464][ T253] addrconf_dad_work+0x10b/0xab0 [ 5134.325464][ T253] process_one_work+0x84d/0x18a0 [ 5134.325464][ T253] worker_thread+0x587/0xd30 [ 5134.325464][ T253] kthread+0x28a/0x350 [ 5134.325464][ T253] ret_from_fork+0x31/0x70 [ 5134.325464][ T253] ret_from_fork_asm+0x1a/0x30 [ 5134.325464][ T253] [ 5134.328477][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5134.328477][ T253] netdev_get_by_index+0x5e/0x80 [ 5134.328477][ T253] fib6_nh_init+0x3d8/0x1580 [ 5134.328477][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5134.328477][ T253] ip6_route_add+0x1c/0x140 [ 5134.328477][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5134.328477][ T253] inet6_addr_add+0x4f8/0xa40 [ 5134.328477][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5134.328477][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5134.328477][ T253] netlink_rcv_skb+0x130/0x360 [ 5134.328477][ T253] netlink_unicast+0x449/0x710 [ 5134.328477][ T253] netlink_sendmsg+0x723/0xbe0 [ 5134.328477][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5134.328477][ T253] ___sys_sendmsg+0xee/0x170 [ 5134.328477][ T253] __sys_sendmsg+0xcd/0x170 [ 5134.328477][ T253] do_syscall_64+0xc6/0x1e0 [ 5134.328477][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5134.328477][ T253] [ 5134.331191][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5134.331191][ T253] netdev_get_by_index+0x5e/0x80 [ 5134.331191][ T253] fib6_nh_init+0x3d8/0x1580 [ 5134.331191][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5134.331191][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5134.331191][ T253] ipv6_add_addr+0x411/0x2000 [ 5134.331191][ T253] inet6_addr_add+0x30e/0xa40 [ 5134.331191][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5134.331191][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5134.331191][ T253] netlink_rcv_skb+0x130/0x360 [ 5134.331191][ T253] netlink_unicast+0x449/0x710 [ 5134.331191][ T253] netlink_sendmsg+0x723/0xbe0 [ 5134.331191][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5134.331191][ T253] ___sys_sendmsg+0xee/0x170 [ 5134.331191][ T253] __sys_sendmsg+0xcd/0x170 [ 5134.331191][ T253] do_syscall_64+0xc6/0x1e0 [ 5134.331191][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5134.331191][ T253] [ 5134.333922][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5134.333922][ T253] netdev_get_by_index+0x5e/0x80 [ 5134.333922][ T253] fib6_nh_init+0x3d8/0x1580 [ 5134.333922][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5134.333922][ T253] ip6_route_add+0x1c/0x140 [ 5134.333922][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5134.333922][ T253] addrconf_add_dev+0xe2/0x170 [ 5134.333922][ T253] inet6_addr_add+0x12f/0xa40 [ 5134.333922][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5134.333922][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5134.333922][ T253] netlink_rcv_skb+0x130/0x360 [ 5134.333922][ T253] netlink_unicast+0x449/0x710 [ 5134.333922][ T253] netlink_sendmsg+0x723/0xbe0 [ 5134.333922][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5134.333922][ T253] ___sys_sendmsg+0xee/0x170 [ 5134.333922][ T253] __sys_sendmsg+0xcd/0x170 [ 5134.333922][ T253] do_syscall_64+0xc6/0x1e0 [ 5134.333922][ T253] [ 5134.336605][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5134.336605][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5134.336605][ T253] ipv6_find_idev+0x102/0x170 [ 5134.336605][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5134.336605][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5134.336605][ T253] netlink_rcv_skb+0x130/0x360 [ 5134.336605][ T253] netlink_unicast+0x449/0x710 [ 5134.336605][ T253] netlink_sendmsg+0x723/0xbe0 [ 5134.336605][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5134.336605][ T253] ___sys_sendmsg+0xee/0x170 [ 5134.336605][ T253] __sys_sendmsg+0xcd/0x170 [ 5134.336605][ T253] do_syscall_64+0xc6/0x1e0 [ 5134.336605][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5134.336605][ T253] [ 5134.338698][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5134.338698][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5134.338698][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5134.338698][ T253] ipv6_find_idev+0x102/0x170 [ 5134.338698][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5134.338698][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5134.338698][ T253] netlink_rcv_skb+0x130/0x360 [ 5134.338698][ T253] netlink_unicast+0x449/0x710 [ 5134.338698][ T253] netlink_sendmsg+0x723/0xbe0 [ 5134.338698][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5134.338698][ T253] ___sys_sendmsg+0xee/0x170 [ 5134.338698][ T253] __sys_sendmsg+0xcd/0x170 [ 5134.338698][ T253] do_syscall_64+0xc6/0x1e0 [ 5134.338698][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5134.338698][ T253] [ 5144.578251][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5144.578831][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5144.578831][ T253] dst_init+0x84/0x4a0 [ 5144.578831][ T253] dst_alloc+0x97/0x150 [ 5144.578831][ T253] ip6_dst_alloc+0x23/0x90 [ 5144.578831][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5144.578831][ T253] ip6_pol_route+0x56f/0x840 [ 5144.578831][ T253] fib6_rule_lookup+0x334/0x630 [ 5144.578831][ T253] ip6_route_output_flags+0x259/0x480 [ 5144.578831][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5144.578831][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5144.578831][ T253] netlink_rcv_skb+0x130/0x360 [ 5144.578831][ T253] netlink_unicast+0x449/0x710 [ 5144.578831][ T253] netlink_sendmsg+0x723/0xbe0 [ 5144.578831][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5144.578831][ T253] ___sys_sendmsg+0xee/0x170 [ 5144.578831][ T253] __sys_sendmsg+0xcd/0x170 [ 5144.578831][ T253] do_syscall_64+0xc6/0x1e0 [ 5144.578831][ T253] [ 5144.581036][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5144.581036][ T253] netdev_get_by_index+0x5e/0x80 [ 5144.581036][ T253] fib6_nh_init+0x3d8/0x1580 [ 5144.581036][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5144.581036][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5144.581036][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5144.581036][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5144.581036][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5144.581036][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5144.581036][ T253] addrconf_dad_begin+0x310/0x670 [ 5144.581036][ T253] addrconf_dad_work+0x10b/0xab0 [ 5144.581036][ T253] process_one_work+0x84d/0x18a0 [ 5144.581036][ T253] worker_thread+0x587/0xd30 [ 5144.581036][ T253] kthread+0x28a/0x350 [ 5144.581036][ T253] ret_from_fork+0x31/0x70 [ 5144.581036][ T253] ret_from_fork_asm+0x1a/0x30 [ 5144.581036][ T253] [ 5144.583189][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5144.583189][ T253] netdev_get_by_index+0x5e/0x80 [ 5144.583189][ T253] fib6_nh_init+0x3d8/0x1580 [ 5144.583189][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5144.583189][ T253] ip6_route_add+0x1c/0x140 [ 5144.583189][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5144.583189][ T253] inet6_addr_add+0x4f8/0xa40 [ 5144.583189][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5144.583189][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5144.583189][ T253] netlink_rcv_skb+0x130/0x360 [ 5144.583189][ T253] netlink_unicast+0x449/0x710 [ 5144.583189][ T253] netlink_sendmsg+0x723/0xbe0 [ 5144.583189][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5144.583189][ T253] ___sys_sendmsg+0xee/0x170 [ 5144.583189][ T253] __sys_sendmsg+0xcd/0x170 [ 5144.583189][ T253] do_syscall_64+0xc6/0x1e0 [ 5144.583189][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5144.583189][ T253] [ 5144.585444][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5144.585444][ T253] netdev_get_by_index+0x5e/0x80 [ 5144.585444][ T253] fib6_nh_init+0x3d8/0x1580 [ 5144.585444][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5144.585444][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5144.585444][ T253] ipv6_add_addr+0x411/0x2000 [ 5144.585444][ T253] inet6_addr_add+0x30e/0xa40 [ 5144.585444][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5144.585444][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5144.585444][ T253] netlink_rcv_skb+0x130/0x360 [ 5144.585444][ T253] netlink_unicast+0x449/0x710 [ 5144.585444][ T253] netlink_sendmsg+0x723/0xbe0 [ 5144.585444][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5144.585444][ T253] ___sys_sendmsg+0xee/0x170 [ 5144.585444][ T253] __sys_sendmsg+0xcd/0x170 [ 5144.585444][ T253] do_syscall_64+0xc6/0x1e0 [ 5144.585444][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5144.585444][ T253] [ 5144.587706][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5144.587706][ T253] netdev_get_by_index+0x5e/0x80 [ 5144.587706][ T253] fib6_nh_init+0x3d8/0x1580 [ 5144.587706][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5144.587706][ T253] ip6_route_add+0x1c/0x140 [ 5144.587706][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5144.587706][ T253] addrconf_add_dev+0xe2/0x170 [ 5144.587706][ T253] inet6_addr_add+0x12f/0xa40 [ 5144.587706][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5144.587706][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5144.587706][ T253] netlink_rcv_skb+0x130/0x360 [ 5144.587706][ T253] netlink_unicast+0x449/0x710 [ 5144.587706][ T253] netlink_sendmsg+0x723/0xbe0 [ 5144.587706][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5144.587706][ T253] ___sys_sendmsg+0xee/0x170 [ 5144.587706][ T253] __sys_sendmsg+0xcd/0x170 [ 5144.587706][ T253] do_syscall_64+0xc6/0x1e0 [ 5144.587706][ T253] [ 5144.589919][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5144.589919][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5144.589919][ T253] ipv6_find_idev+0x102/0x170 [ 5144.589919][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5144.589919][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5144.589919][ T253] netlink_rcv_skb+0x130/0x360 [ 5144.589919][ T253] netlink_unicast+0x449/0x710 [ 5144.589919][ T253] netlink_sendmsg+0x723/0xbe0 [ 5144.589919][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5144.589919][ T253] ___sys_sendmsg+0xee/0x170 [ 5144.589919][ T253] __sys_sendmsg+0xcd/0x170 [ 5144.589919][ T253] do_syscall_64+0xc6/0x1e0 [ 5144.589919][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5144.589919][ T253] [ 5144.591664][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5144.591664][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5144.591664][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5144.591664][ T253] ipv6_find_idev+0x102/0x170 [ 5144.591664][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5144.591664][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5144.591664][ T253] netlink_rcv_skb+0x130/0x360 [ 5144.591664][ T253] netlink_unicast+0x449/0x710 [ 5144.591664][ T253] netlink_sendmsg+0x723/0xbe0 [ 5144.591664][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5144.591664][ T253] ___sys_sendmsg+0xee/0x170 [ 5144.591664][ T253] __sys_sendmsg+0xcd/0x170 [ 5144.591664][ T253] do_syscall_64+0xc6/0x1e0 [ 5144.591664][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5144.591664][ T253] [ 5154.834300][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5154.834770][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5154.834770][ T253] dst_init+0x84/0x4a0 [ 5154.834770][ T253] dst_alloc+0x97/0x150 [ 5154.834770][ T253] ip6_dst_alloc+0x23/0x90 [ 5154.834770][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5154.834770][ T253] ip6_pol_route+0x56f/0x840 [ 5154.834770][ T253] fib6_rule_lookup+0x334/0x630 [ 5154.834770][ T253] ip6_route_output_flags+0x259/0x480 [ 5154.834770][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5154.834770][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5154.834770][ T253] netlink_rcv_skb+0x130/0x360 [ 5154.834770][ T253] netlink_unicast+0x449/0x710 [ 5154.834770][ T253] netlink_sendmsg+0x723/0xbe0 [ 5154.834770][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5154.834770][ T253] ___sys_sendmsg+0xee/0x170 [ 5154.834770][ T253] __sys_sendmsg+0xcd/0x170 [ 5154.834770][ T253] do_syscall_64+0xc6/0x1e0 [ 5154.834770][ T253] [ 5154.836978][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5154.836978][ T253] netdev_get_by_index+0x5e/0x80 [ 5154.836978][ T253] fib6_nh_init+0x3d8/0x1580 [ 5154.836978][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5154.836978][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5154.836978][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5154.836978][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5154.836978][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5154.836978][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5154.836978][ T253] addrconf_dad_begin+0x310/0x670 [ 5154.836978][ T253] addrconf_dad_work+0x10b/0xab0 [ 5154.836978][ T253] process_one_work+0x84d/0x18a0 [ 5154.836978][ T253] worker_thread+0x587/0xd30 [ 5154.836978][ T253] kthread+0x28a/0x350 [ 5154.836978][ T253] ret_from_fork+0x31/0x70 [ 5154.836978][ T253] ret_from_fork_asm+0x1a/0x30 [ 5154.836978][ T253] [ 5154.839148][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5154.839148][ T253] netdev_get_by_index+0x5e/0x80 [ 5154.839148][ T253] fib6_nh_init+0x3d8/0x1580 [ 5154.839148][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5154.839148][ T253] ip6_route_add+0x1c/0x140 [ 5154.839148][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5154.839148][ T253] inet6_addr_add+0x4f8/0xa40 [ 5154.839148][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5154.839148][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5154.839148][ T253] netlink_rcv_skb+0x130/0x360 [ 5154.839148][ T253] netlink_unicast+0x449/0x710 [ 5154.839148][ T253] netlink_sendmsg+0x723/0xbe0 [ 5154.839148][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5154.839148][ T253] ___sys_sendmsg+0xee/0x170 [ 5154.839148][ T253] __sys_sendmsg+0xcd/0x170 [ 5154.839148][ T253] do_syscall_64+0xc6/0x1e0 [ 5154.839148][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5154.839148][ T253] [ 5154.841395][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5154.841395][ T253] netdev_get_by_index+0x5e/0x80 [ 5154.841395][ T253] fib6_nh_init+0x3d8/0x1580 [ 5154.841395][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5154.841395][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5154.841395][ T253] ipv6_add_addr+0x411/0x2000 [ 5154.841395][ T253] inet6_addr_add+0x30e/0xa40 [ 5154.841395][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5154.841395][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5154.841395][ T253] netlink_rcv_skb+0x130/0x360 [ 5154.841395][ T253] netlink_unicast+0x449/0x710 [ 5154.841395][ T253] netlink_sendmsg+0x723/0xbe0 [ 5154.841395][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5154.841395][ T253] ___sys_sendmsg+0xee/0x170 [ 5154.841395][ T253] __sys_sendmsg+0xcd/0x170 [ 5154.841395][ T253] do_syscall_64+0xc6/0x1e0 [ 5154.841395][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5154.841395][ T253] [ 5154.843636][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5154.843636][ T253] netdev_get_by_index+0x5e/0x80 [ 5154.843636][ T253] fib6_nh_init+0x3d8/0x1580 [ 5154.843636][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5154.843636][ T253] ip6_route_add+0x1c/0x140 [ 5154.843636][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5154.843636][ T253] addrconf_add_dev+0xe2/0x170 [ 5154.843636][ T253] inet6_addr_add+0x12f/0xa40 [ 5154.843636][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5154.843636][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5154.843636][ T253] netlink_rcv_skb+0x130/0x360 [ 5154.843636][ T253] netlink_unicast+0x449/0x710 [ 5154.843636][ T253] netlink_sendmsg+0x723/0xbe0 [ 5154.843636][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5154.843636][ T253] ___sys_sendmsg+0xee/0x170 [ 5154.843636][ T253] __sys_sendmsg+0xcd/0x170 [ 5154.843636][ T253] do_syscall_64+0xc6/0x1e0 [ 5154.843636][ T253] [ 5154.846371][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5154.846371][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5154.846371][ T253] ipv6_find_idev+0x102/0x170 [ 5154.846371][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5154.846371][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5154.846371][ T253] netlink_rcv_skb+0x130/0x360 [ 5154.846371][ T253] netlink_unicast+0x449/0x710 [ 5154.846371][ T253] netlink_sendmsg+0x723/0xbe0 [ 5154.846371][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5154.846371][ T253] ___sys_sendmsg+0xee/0x170 [ 5154.846371][ T253] __sys_sendmsg+0xcd/0x170 [ 5154.846371][ T253] do_syscall_64+0xc6/0x1e0 [ 5154.846371][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5154.846371][ T253] [ 5154.848091][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5154.848091][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5154.848091][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5154.848091][ T253] ipv6_find_idev+0x102/0x170 [ 5154.848091][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5154.848091][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5154.848091][ T253] netlink_rcv_skb+0x130/0x360 [ 5154.848091][ T253] netlink_unicast+0x449/0x710 [ 5154.848091][ T253] netlink_sendmsg+0x723/0xbe0 [ 5154.848091][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5154.848091][ T253] ___sys_sendmsg+0xee/0x170 [ 5154.848091][ T253] __sys_sendmsg+0xcd/0x170 [ 5154.848091][ T253] do_syscall_64+0xc6/0x1e0 [ 5154.848091][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5154.848091][ T253] [ 5164.858222][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5164.858696][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5164.858696][ T253] dst_init+0x84/0x4a0 [ 5164.858696][ T253] dst_alloc+0x97/0x150 [ 5164.858696][ T253] ip6_dst_alloc+0x23/0x90 [ 5164.858696][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5164.858696][ T253] ip6_pol_route+0x56f/0x840 [ 5164.858696][ T253] fib6_rule_lookup+0x334/0x630 [ 5164.858696][ T253] ip6_route_output_flags+0x259/0x480 [ 5164.858696][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5164.858696][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5164.858696][ T253] netlink_rcv_skb+0x130/0x360 [ 5164.858696][ T253] netlink_unicast+0x449/0x710 [ 5164.858696][ T253] netlink_sendmsg+0x723/0xbe0 [ 5164.858696][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5164.858696][ T253] ___sys_sendmsg+0xee/0x170 [ 5164.858696][ T253] __sys_sendmsg+0xcd/0x170 [ 5164.858696][ T253] do_syscall_64+0xc6/0x1e0 [ 5164.858696][ T253] [ 5164.860887][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5164.860887][ T253] netdev_get_by_index+0x5e/0x80 [ 5164.860887][ T253] fib6_nh_init+0x3d8/0x1580 [ 5164.860887][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5164.860887][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5164.860887][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5164.860887][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5164.860887][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5164.860887][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5164.860887][ T253] addrconf_dad_begin+0x310/0x670 [ 5164.860887][ T253] addrconf_dad_work+0x10b/0xab0 [ 5164.860887][ T253] process_one_work+0x84d/0x18a0 [ 5164.860887][ T253] worker_thread+0x587/0xd30 [ 5164.860887][ T253] kthread+0x28a/0x350 [ 5164.860887][ T253] ret_from_fork+0x31/0x70 [ 5164.860887][ T253] ret_from_fork_asm+0x1a/0x30 [ 5164.860887][ T253] [ 5164.863020][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5164.863020][ T253] netdev_get_by_index+0x5e/0x80 [ 5164.863020][ T253] fib6_nh_init+0x3d8/0x1580 [ 5164.863020][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5164.863020][ T253] ip6_route_add+0x1c/0x140 [ 5164.863020][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5164.863020][ T253] inet6_addr_add+0x4f8/0xa40 [ 5164.863020][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5164.863020][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5164.863020][ T253] netlink_rcv_skb+0x130/0x360 [ 5164.863020][ T253] netlink_unicast+0x449/0x710 [ 5164.863020][ T253] netlink_sendmsg+0x723/0xbe0 [ 5164.863020][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5164.863020][ T253] ___sys_sendmsg+0xee/0x170 [ 5164.863020][ T253] __sys_sendmsg+0xcd/0x170 [ 5164.863020][ T253] do_syscall_64+0xc6/0x1e0 [ 5164.863020][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5164.863020][ T253] [ 5164.865250][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5164.865250][ T253] netdev_get_by_index+0x5e/0x80 [ 5164.865250][ T253] fib6_nh_init+0x3d8/0x1580 [ 5164.865250][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5164.865250][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5164.865250][ T253] ipv6_add_addr+0x411/0x2000 [ 5164.865250][ T253] inet6_addr_add+0x30e/0xa40 [ 5164.865250][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5164.865250][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5164.865250][ T253] netlink_rcv_skb+0x130/0x360 [ 5164.865250][ T253] netlink_unicast+0x449/0x710 [ 5164.865250][ T253] netlink_sendmsg+0x723/0xbe0 [ 5164.865250][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5164.865250][ T253] ___sys_sendmsg+0xee/0x170 [ 5164.865250][ T253] __sys_sendmsg+0xcd/0x170 [ 5164.865250][ T253] do_syscall_64+0xc6/0x1e0 [ 5164.865250][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5164.865250][ T253] [ 5164.867595][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5164.867595][ T253] netdev_get_by_index+0x5e/0x80 [ 5164.867595][ T253] fib6_nh_init+0x3d8/0x1580 [ 5164.867595][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5164.867595][ T253] ip6_route_add+0x1c/0x140 [ 5164.867595][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5164.867595][ T253] addrconf_add_dev+0xe2/0x170 [ 5164.867595][ T253] inet6_addr_add+0x12f/0xa40 [ 5164.867595][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5164.867595][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5164.867595][ T253] netlink_rcv_skb+0x130/0x360 [ 5164.867595][ T253] netlink_unicast+0x449/0x710 [ 5164.867595][ T253] netlink_sendmsg+0x723/0xbe0 [ 5164.867595][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5164.867595][ T253] ___sys_sendmsg+0xee/0x170 [ 5164.867595][ T253] __sys_sendmsg+0xcd/0x170 [ 5164.867595][ T253] do_syscall_64+0xc6/0x1e0 [ 5164.867595][ T253] [ 5164.869793][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5164.869793][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5164.869793][ T253] ipv6_find_idev+0x102/0x170 [ 5164.869793][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5164.869793][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5164.869793][ T253] netlink_rcv_skb+0x130/0x360 [ 5164.869793][ T253] netlink_unicast+0x449/0x710 [ 5164.869793][ T253] netlink_sendmsg+0x723/0xbe0 [ 5164.869793][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5164.869793][ T253] ___sys_sendmsg+0xee/0x170 [ 5164.869793][ T253] __sys_sendmsg+0xcd/0x170 [ 5164.869793][ T253] do_syscall_64+0xc6/0x1e0 [ 5164.869793][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5164.869793][ T253] [ 5164.871518][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5164.871518][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5164.871518][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5164.871518][ T253] ipv6_find_idev+0x102/0x170 [ 5164.871518][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5164.871518][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5164.871518][ T253] netlink_rcv_skb+0x130/0x360 [ 5164.871518][ T253] netlink_unicast+0x449/0x710 [ 5164.871518][ T253] netlink_sendmsg+0x723/0xbe0 [ 5164.871518][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5164.871518][ T253] ___sys_sendmsg+0xee/0x170 [ 5164.871518][ T253] __sys_sendmsg+0xcd/0x170 [ 5164.871518][ T253] do_syscall_64+0xc6/0x1e0 [ 5164.871518][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5164.871518][ T253] [ 5175.058314][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5175.058786][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5175.058786][ T253] dst_init+0x84/0x4a0 [ 5175.058786][ T253] dst_alloc+0x97/0x150 [ 5175.058786][ T253] ip6_dst_alloc+0x23/0x90 [ 5175.058786][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5175.058786][ T253] ip6_pol_route+0x56f/0x840 [ 5175.058786][ T253] fib6_rule_lookup+0x334/0x630 [ 5175.058786][ T253] ip6_route_output_flags+0x259/0x480 [ 5175.058786][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5175.058786][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5175.058786][ T253] netlink_rcv_skb+0x130/0x360 [ 5175.058786][ T253] netlink_unicast+0x449/0x710 [ 5175.058786][ T253] netlink_sendmsg+0x723/0xbe0 [ 5175.058786][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5175.058786][ T253] ___sys_sendmsg+0xee/0x170 [ 5175.058786][ T253] __sys_sendmsg+0xcd/0x170 [ 5175.058786][ T253] do_syscall_64+0xc6/0x1e0 [ 5175.058786][ T253] [ 5175.061004][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5175.061004][ T253] netdev_get_by_index+0x5e/0x80 [ 5175.061004][ T253] fib6_nh_init+0x3d8/0x1580 [ 5175.061004][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5175.061004][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5175.061004][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5175.061004][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5175.061004][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5175.061004][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5175.061004][ T253] addrconf_dad_begin+0x310/0x670 [ 5175.061004][ T253] addrconf_dad_work+0x10b/0xab0 [ 5175.061004][ T253] process_one_work+0x84d/0x18a0 [ 5175.061004][ T253] worker_thread+0x587/0xd30 [ 5175.061004][ T253] kthread+0x28a/0x350 [ 5175.061004][ T253] ret_from_fork+0x31/0x70 [ 5175.061004][ T253] ret_from_fork_asm+0x1a/0x30 [ 5175.061004][ T253] [ 5175.063556][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5175.063556][ T253] netdev_get_by_index+0x5e/0x80 [ 5175.063556][ T253] fib6_nh_init+0x3d8/0x1580 [ 5175.063556][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5175.063556][ T253] ip6_route_add+0x1c/0x140 [ 5175.063556][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5175.063556][ T253] inet6_addr_add+0x4f8/0xa40 [ 5175.063556][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5175.063556][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5175.063556][ T253] netlink_rcv_skb+0x130/0x360 [ 5175.063556][ T253] netlink_unicast+0x449/0x710 [ 5175.063556][ T253] netlink_sendmsg+0x723/0xbe0 [ 5175.063556][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5175.063556][ T253] ___sys_sendmsg+0xee/0x170 [ 5175.063556][ T253] __sys_sendmsg+0xcd/0x170 [ 5175.063556][ T253] do_syscall_64+0xc6/0x1e0 [ 5175.063556][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5175.063556][ T253] [ 5175.065817][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5175.065817][ T253] netdev_get_by_index+0x5e/0x80 [ 5175.065817][ T253] fib6_nh_init+0x3d8/0x1580 [ 5175.065817][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5175.065817][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5175.065817][ T253] ipv6_add_addr+0x411/0x2000 [ 5175.065817][ T253] inet6_addr_add+0x30e/0xa40 [ 5175.065817][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5175.065817][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5175.065817][ T253] netlink_rcv_skb+0x130/0x360 [ 5175.065817][ T253] netlink_unicast+0x449/0x710 [ 5175.065817][ T253] netlink_sendmsg+0x723/0xbe0 [ 5175.065817][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5175.065817][ T253] ___sys_sendmsg+0xee/0x170 [ 5175.065817][ T253] __sys_sendmsg+0xcd/0x170 [ 5175.065817][ T253] do_syscall_64+0xc6/0x1e0 [ 5175.065817][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5175.065817][ T253] [ 5175.068064][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5175.068064][ T253] netdev_get_by_index+0x5e/0x80 [ 5175.068064][ T253] fib6_nh_init+0x3d8/0x1580 [ 5175.068064][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5175.068064][ T253] ip6_route_add+0x1c/0x140 [ 5175.068064][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5175.068064][ T253] addrconf_add_dev+0xe2/0x170 [ 5175.068064][ T253] inet6_addr_add+0x12f/0xa40 [ 5175.068064][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5175.068064][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5175.068064][ T253] netlink_rcv_skb+0x130/0x360 [ 5175.068064][ T253] netlink_unicast+0x449/0x710 [ 5175.068064][ T253] netlink_sendmsg+0x723/0xbe0 [ 5175.068064][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5175.068064][ T253] ___sys_sendmsg+0xee/0x170 [ 5175.068064][ T253] __sys_sendmsg+0xcd/0x170 [ 5175.068064][ T253] do_syscall_64+0xc6/0x1e0 [ 5175.068064][ T253] [ 5175.070272][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5175.070272][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5175.070272][ T253] ipv6_find_idev+0x102/0x170 [ 5175.070272][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5175.070272][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5175.070272][ T253] netlink_rcv_skb+0x130/0x360 [ 5175.070272][ T253] netlink_unicast+0x449/0x710 [ 5175.070272][ T253] netlink_sendmsg+0x723/0xbe0 [ 5175.070272][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5175.070272][ T253] ___sys_sendmsg+0xee/0x170 [ 5175.070272][ T253] __sys_sendmsg+0xcd/0x170 [ 5175.070272][ T253] do_syscall_64+0xc6/0x1e0 [ 5175.070272][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5175.070272][ T253] [ 5175.071991][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5175.071991][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5175.071991][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5175.071991][ T253] ipv6_find_idev+0x102/0x170 [ 5175.071991][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5175.071991][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5175.071991][ T253] netlink_rcv_skb+0x130/0x360 [ 5175.071991][ T253] netlink_unicast+0x449/0x710 [ 5175.071991][ T253] netlink_sendmsg+0x723/0xbe0 [ 5175.071991][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5175.071991][ T253] ___sys_sendmsg+0xee/0x170 [ 5175.071991][ T253] __sys_sendmsg+0xcd/0x170 [ 5175.071991][ T253] do_syscall_64+0xc6/0x1e0 [ 5175.071991][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5175.071991][ T253] [ 5185.338416][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5185.338842][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5185.338842][ T253] dst_init+0x84/0x4a0 [ 5185.338842][ T253] dst_alloc+0x97/0x150 [ 5185.338842][ T253] ip6_dst_alloc+0x23/0x90 [ 5185.338842][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5185.338842][ T253] ip6_pol_route+0x56f/0x840 [ 5185.338842][ T253] fib6_rule_lookup+0x334/0x630 [ 5185.338842][ T253] ip6_route_output_flags+0x259/0x480 [ 5185.338842][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5185.338842][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5185.338842][ T253] netlink_rcv_skb+0x130/0x360 [ 5185.338842][ T253] netlink_unicast+0x449/0x710 [ 5185.338842][ T253] netlink_sendmsg+0x723/0xbe0 [ 5185.338842][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5185.338842][ T253] ___sys_sendmsg+0xee/0x170 [ 5185.338842][ T253] __sys_sendmsg+0xcd/0x170 [ 5185.338842][ T253] do_syscall_64+0xc6/0x1e0 [ 5185.338842][ T253] [ 5185.341040][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5185.341040][ T253] netdev_get_by_index+0x5e/0x80 [ 5185.341040][ T253] fib6_nh_init+0x3d8/0x1580 [ 5185.341040][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5185.341040][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5185.341040][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5185.341040][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5185.341040][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5185.341040][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5185.341040][ T253] addrconf_dad_begin+0x310/0x670 [ 5185.341040][ T253] addrconf_dad_work+0x10b/0xab0 [ 5185.341040][ T253] process_one_work+0x84d/0x18a0 [ 5185.341040][ T253] worker_thread+0x587/0xd30 [ 5185.341040][ T253] kthread+0x28a/0x350 [ 5185.341040][ T253] ret_from_fork+0x31/0x70 [ 5185.341040][ T253] ret_from_fork_asm+0x1a/0x30 [ 5185.341040][ T253] [ 5185.343191][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5185.343191][ T253] netdev_get_by_index+0x5e/0x80 [ 5185.343191][ T253] fib6_nh_init+0x3d8/0x1580 [ 5185.343191][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5185.343191][ T253] ip6_route_add+0x1c/0x140 [ 5185.343191][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5185.343191][ T253] inet6_addr_add+0x4f8/0xa40 [ 5185.343191][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5185.343191][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5185.343191][ T253] netlink_rcv_skb+0x130/0x360 [ 5185.343191][ T253] netlink_unicast+0x449/0x710 [ 5185.343191][ T253] netlink_sendmsg+0x723/0xbe0 [ 5185.343191][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5185.343191][ T253] ___sys_sendmsg+0xee/0x170 [ 5185.343191][ T253] __sys_sendmsg+0xcd/0x170 [ 5185.343191][ T253] do_syscall_64+0xc6/0x1e0 [ 5185.343191][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5185.343191][ T253] [ 5185.345453][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5185.345453][ T253] netdev_get_by_index+0x5e/0x80 [ 5185.345453][ T253] fib6_nh_init+0x3d8/0x1580 [ 5185.345453][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5185.345453][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5185.345453][ T253] ipv6_add_addr+0x411/0x2000 [ 5185.345453][ T253] inet6_addr_add+0x30e/0xa40 [ 5185.345453][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5185.345453][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5185.345453][ T253] netlink_rcv_skb+0x130/0x360 [ 5185.345453][ T253] netlink_unicast+0x449/0x710 [ 5185.345453][ T253] netlink_sendmsg+0x723/0xbe0 [ 5185.345453][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5185.345453][ T253] ___sys_sendmsg+0xee/0x170 [ 5185.345453][ T253] __sys_sendmsg+0xcd/0x170 [ 5185.345453][ T253] do_syscall_64+0xc6/0x1e0 [ 5185.345453][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5185.345453][ T253] [ 5185.347711][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5185.347711][ T253] netdev_get_by_index+0x5e/0x80 [ 5185.347711][ T253] fib6_nh_init+0x3d8/0x1580 [ 5185.347711][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5185.347711][ T253] ip6_route_add+0x1c/0x140 [ 5185.347711][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5185.347711][ T253] addrconf_add_dev+0xe2/0x170 [ 5185.347711][ T253] inet6_addr_add+0x12f/0xa40 [ 5185.347711][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5185.347711][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5185.347711][ T253] netlink_rcv_skb+0x130/0x360 [ 5185.347711][ T253] netlink_unicast+0x449/0x710 [ 5185.347711][ T253] netlink_sendmsg+0x723/0xbe0 [ 5185.347711][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5185.347711][ T253] ___sys_sendmsg+0xee/0x170 [ 5185.347711][ T253] __sys_sendmsg+0xcd/0x170 [ 5185.347711][ T253] do_syscall_64+0xc6/0x1e0 [ 5185.347711][ T253] [ 5185.349925][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5185.349925][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5185.349925][ T253] ipv6_find_idev+0x102/0x170 [ 5185.349925][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5185.349925][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5185.349925][ T253] netlink_rcv_skb+0x130/0x360 [ 5185.349925][ T253] netlink_unicast+0x449/0x710 [ 5185.349925][ T253] netlink_sendmsg+0x723/0xbe0 [ 5185.349925][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5185.349925][ T253] ___sys_sendmsg+0xee/0x170 [ 5185.349925][ T253] __sys_sendmsg+0xcd/0x170 [ 5185.349925][ T253] do_syscall_64+0xc6/0x1e0 [ 5185.349925][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5185.349925][ T253] [ 5185.351653][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5185.351653][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5185.351653][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5185.351653][ T253] ipv6_find_idev+0x102/0x170 [ 5185.351653][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5185.351653][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5185.351653][ T253] netlink_rcv_skb+0x130/0x360 [ 5185.351653][ T253] netlink_unicast+0x449/0x710 [ 5185.351653][ T253] netlink_sendmsg+0x723/0xbe0 [ 5185.351653][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5185.351653][ T253] ___sys_sendmsg+0xee/0x170 [ 5185.351653][ T253] __sys_sendmsg+0xcd/0x170 [ 5185.351653][ T253] do_syscall_64+0xc6/0x1e0 [ 5185.351653][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5185.351653][ T253] [ 5195.594315][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5195.594734][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5195.594734][ T253] dst_init+0x84/0x4a0 [ 5195.594734][ T253] dst_alloc+0x97/0x150 [ 5195.594734][ T253] ip6_dst_alloc+0x23/0x90 [ 5195.594734][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5195.594734][ T253] ip6_pol_route+0x56f/0x840 [ 5195.594734][ T253] fib6_rule_lookup+0x334/0x630 [ 5195.594734][ T253] ip6_route_output_flags+0x259/0x480 [ 5195.594734][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5195.594734][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5195.594734][ T253] netlink_rcv_skb+0x130/0x360 [ 5195.594734][ T253] netlink_unicast+0x449/0x710 [ 5195.594734][ T253] netlink_sendmsg+0x723/0xbe0 [ 5195.594734][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5195.594734][ T253] ___sys_sendmsg+0xee/0x170 [ 5195.594734][ T253] __sys_sendmsg+0xcd/0x170 [ 5195.594734][ T253] do_syscall_64+0xc6/0x1e0 [ 5195.594734][ T253] [ 5195.596942][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5195.596942][ T253] netdev_get_by_index+0x5e/0x80 [ 5195.596942][ T253] fib6_nh_init+0x3d8/0x1580 [ 5195.596942][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5195.596942][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5195.596942][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5195.596942][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5195.596942][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5195.596942][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5195.596942][ T253] addrconf_dad_begin+0x310/0x670 [ 5195.596942][ T253] addrconf_dad_work+0x10b/0xab0 [ 5195.596942][ T253] process_one_work+0x84d/0x18a0 [ 5195.596942][ T253] worker_thread+0x587/0xd30 [ 5195.596942][ T253] kthread+0x28a/0x350 [ 5195.596942][ T253] ret_from_fork+0x31/0x70 [ 5195.596942][ T253] ret_from_fork_asm+0x1a/0x30 [ 5195.596942][ T253] [ 5195.599107][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5195.599107][ T253] netdev_get_by_index+0x5e/0x80 [ 5195.599107][ T253] fib6_nh_init+0x3d8/0x1580 [ 5195.599107][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5195.599107][ T253] ip6_route_add+0x1c/0x140 [ 5195.599107][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5195.599107][ T253] inet6_addr_add+0x4f8/0xa40 [ 5195.599107][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5195.599107][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5195.599107][ T253] netlink_rcv_skb+0x130/0x360 [ 5195.599107][ T253] netlink_unicast+0x449/0x710 [ 5195.599107][ T253] netlink_sendmsg+0x723/0xbe0 [ 5195.599107][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5195.599107][ T253] ___sys_sendmsg+0xee/0x170 [ 5195.599107][ T253] __sys_sendmsg+0xcd/0x170 [ 5195.599107][ T253] do_syscall_64+0xc6/0x1e0 [ 5195.599107][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5195.599107][ T253] [ 5195.601358][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5195.601358][ T253] netdev_get_by_index+0x5e/0x80 [ 5195.601358][ T253] fib6_nh_init+0x3d8/0x1580 [ 5195.601358][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5195.601358][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5195.601358][ T253] ipv6_add_addr+0x411/0x2000 [ 5195.601358][ T253] inet6_addr_add+0x30e/0xa40 [ 5195.601358][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5195.601358][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5195.601358][ T253] netlink_rcv_skb+0x130/0x360 [ 5195.601358][ T253] netlink_unicast+0x449/0x710 [ 5195.601358][ T253] netlink_sendmsg+0x723/0xbe0 [ 5195.601358][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5195.601358][ T253] ___sys_sendmsg+0xee/0x170 [ 5195.601358][ T253] __sys_sendmsg+0xcd/0x170 [ 5195.601358][ T253] do_syscall_64+0xc6/0x1e0 [ 5195.601358][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5195.601358][ T253] [ 5195.603626][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5195.603626][ T253] netdev_get_by_index+0x5e/0x80 [ 5195.603626][ T253] fib6_nh_init+0x3d8/0x1580 [ 5195.603626][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5195.603626][ T253] ip6_route_add+0x1c/0x140 [ 5195.603626][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5195.603626][ T253] addrconf_add_dev+0xe2/0x170 [ 5195.603626][ T253] inet6_addr_add+0x12f/0xa40 [ 5195.603626][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5195.603626][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5195.603626][ T253] netlink_rcv_skb+0x130/0x360 [ 5195.603626][ T253] netlink_unicast+0x449/0x710 [ 5195.603626][ T253] netlink_sendmsg+0x723/0xbe0 [ 5195.603626][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5195.603626][ T253] ___sys_sendmsg+0xee/0x170 [ 5195.603626][ T253] __sys_sendmsg+0xcd/0x170 [ 5195.603626][ T253] do_syscall_64+0xc6/0x1e0 [ 5195.603626][ T253] [ 5195.605848][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5195.605848][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5195.605848][ T253] ipv6_find_idev+0x102/0x170 [ 5195.605848][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5195.605848][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5195.605848][ T253] netlink_rcv_skb+0x130/0x360 [ 5195.605848][ T253] netlink_unicast+0x449/0x710 [ 5195.605848][ T253] netlink_sendmsg+0x723/0xbe0 [ 5195.605848][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5195.605848][ T253] ___sys_sendmsg+0xee/0x170 [ 5195.605848][ T253] __sys_sendmsg+0xcd/0x170 [ 5195.605848][ T253] do_syscall_64+0xc6/0x1e0 [ 5195.605848][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5195.605848][ T253] [ 5195.607578][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5195.607578][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5195.607578][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5195.607578][ T253] ipv6_find_idev+0x102/0x170 [ 5195.607578][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5195.607578][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5195.607578][ T253] netlink_rcv_skb+0x130/0x360 [ 5195.607578][ T253] netlink_unicast+0x449/0x710 [ 5195.607578][ T253] netlink_sendmsg+0x723/0xbe0 [ 5195.607578][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5195.607578][ T253] ___sys_sendmsg+0xee/0x170 [ 5195.607578][ T253] __sys_sendmsg+0xcd/0x170 [ 5195.607578][ T253] do_syscall_64+0xc6/0x1e0 [ 5195.607578][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5195.607578][ T253] [ 5205.778297][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5205.778712][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5205.778712][ T253] dst_init+0x84/0x4a0 [ 5205.778712][ T253] dst_alloc+0x97/0x150 [ 5205.778712][ T253] ip6_dst_alloc+0x23/0x90 [ 5205.778712][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5205.778712][ T253] ip6_pol_route+0x56f/0x840 [ 5205.778712][ T253] fib6_rule_lookup+0x334/0x630 [ 5205.778712][ T253] ip6_route_output_flags+0x259/0x480 [ 5205.778712][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5205.778712][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5205.778712][ T253] netlink_rcv_skb+0x130/0x360 [ 5205.778712][ T253] netlink_unicast+0x449/0x710 [ 5205.778712][ T253] netlink_sendmsg+0x723/0xbe0 [ 5205.778712][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5205.778712][ T253] ___sys_sendmsg+0xee/0x170 [ 5205.778712][ T253] __sys_sendmsg+0xcd/0x170 [ 5205.778712][ T253] do_syscall_64+0xc6/0x1e0 [ 5205.778712][ T253] [ 5205.780912][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5205.780912][ T253] netdev_get_by_index+0x5e/0x80 [ 5205.780912][ T253] fib6_nh_init+0x3d8/0x1580 [ 5205.780912][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5205.780912][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5205.780912][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5205.780912][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5205.780912][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5205.780912][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5205.780912][ T253] addrconf_dad_begin+0x310/0x670 [ 5205.780912][ T253] addrconf_dad_work+0x10b/0xab0 [ 5205.780912][ T253] process_one_work+0x84d/0x18a0 [ 5205.780912][ T253] worker_thread+0x587/0xd30 [ 5205.780912][ T253] kthread+0x28a/0x350 [ 5205.780912][ T253] ret_from_fork+0x31/0x70 [ 5205.780912][ T253] ret_from_fork_asm+0x1a/0x30 [ 5205.780912][ T253] [ 5205.783056][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5205.783056][ T253] netdev_get_by_index+0x5e/0x80 [ 5205.783056][ T253] fib6_nh_init+0x3d8/0x1580 [ 5205.783056][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5205.783056][ T253] ip6_route_add+0x1c/0x140 [ 5205.783056][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5205.783056][ T253] inet6_addr_add+0x4f8/0xa40 [ 5205.783056][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5205.783056][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5205.783056][ T253] netlink_rcv_skb+0x130/0x360 [ 5205.783056][ T253] netlink_unicast+0x449/0x710 [ 5205.783056][ T253] netlink_sendmsg+0x723/0xbe0 [ 5205.783056][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5205.783056][ T253] ___sys_sendmsg+0xee/0x170 [ 5205.783056][ T253] __sys_sendmsg+0xcd/0x170 [ 5205.783056][ T253] do_syscall_64+0xc6/0x1e0 [ 5205.783056][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5205.783056][ T253] [ 5205.785327][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5205.785327][ T253] netdev_get_by_index+0x5e/0x80 [ 5205.785327][ T253] fib6_nh_init+0x3d8/0x1580 [ 5205.785327][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5205.785327][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5205.785327][ T253] ipv6_add_addr+0x411/0x2000 [ 5205.785327][ T253] inet6_addr_add+0x30e/0xa40 [ 5205.785327][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5205.785327][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5205.785327][ T253] netlink_rcv_skb+0x130/0x360 [ 5205.785327][ T253] netlink_unicast+0x449/0x710 [ 5205.785327][ T253] netlink_sendmsg+0x723/0xbe0 [ 5205.785327][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5205.785327][ T253] ___sys_sendmsg+0xee/0x170 [ 5205.785327][ T253] __sys_sendmsg+0xcd/0x170 [ 5205.785327][ T253] do_syscall_64+0xc6/0x1e0 [ 5205.785327][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5205.785327][ T253] [ 5205.787573][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5205.787573][ T253] netdev_get_by_index+0x5e/0x80 [ 5205.787573][ T253] fib6_nh_init+0x3d8/0x1580 [ 5205.787573][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5205.787573][ T253] ip6_route_add+0x1c/0x140 [ 5205.787573][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5205.787573][ T253] addrconf_add_dev+0xe2/0x170 [ 5205.787573][ T253] inet6_addr_add+0x12f/0xa40 [ 5205.787573][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5205.787573][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5205.787573][ T253] netlink_rcv_skb+0x130/0x360 [ 5205.787573][ T253] netlink_unicast+0x449/0x710 [ 5205.787573][ T253] netlink_sendmsg+0x723/0xbe0 [ 5205.787573][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5205.787573][ T253] ___sys_sendmsg+0xee/0x170 [ 5205.787573][ T253] __sys_sendmsg+0xcd/0x170 [ 5205.787573][ T253] do_syscall_64+0xc6/0x1e0 [ 5205.787573][ T253] [ 5205.789785][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5205.789785][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5205.789785][ T253] ipv6_find_idev+0x102/0x170 [ 5205.789785][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5205.789785][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5205.789785][ T253] netlink_rcv_skb+0x130/0x360 [ 5205.789785][ T253] netlink_unicast+0x449/0x710 [ 5205.789785][ T253] netlink_sendmsg+0x723/0xbe0 [ 5205.789785][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5205.789785][ T253] ___sys_sendmsg+0xee/0x170 [ 5205.789785][ T253] __sys_sendmsg+0xcd/0x170 [ 5205.789785][ T253] do_syscall_64+0xc6/0x1e0 [ 5205.789785][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5205.789785][ T253] [ 5205.791513][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5205.791513][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5205.791513][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5205.791513][ T253] ipv6_find_idev+0x102/0x170 [ 5205.791513][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5205.791513][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5205.791513][ T253] netlink_rcv_skb+0x130/0x360 [ 5205.791513][ T253] netlink_unicast+0x449/0x710 [ 5205.791513][ T253] netlink_sendmsg+0x723/0xbe0 [ 5205.791513][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5205.791513][ T253] ___sys_sendmsg+0xee/0x170 [ 5205.791513][ T253] __sys_sendmsg+0xcd/0x170 [ 5205.791513][ T253] do_syscall_64+0xc6/0x1e0 [ 5205.791513][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5205.791513][ T253] [ 5215.834253][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5215.834766][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5215.834766][ T253] dst_init+0x84/0x4a0 [ 5215.834766][ T253] dst_alloc+0x97/0x150 [ 5215.834766][ T253] ip6_dst_alloc+0x23/0x90 [ 5215.834766][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5215.834766][ T253] ip6_pol_route+0x56f/0x840 [ 5215.834766][ T253] fib6_rule_lookup+0x334/0x630 [ 5215.834766][ T253] ip6_route_output_flags+0x259/0x480 [ 5215.834766][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5215.834766][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5215.834766][ T253] netlink_rcv_skb+0x130/0x360 [ 5215.834766][ T253] netlink_unicast+0x449/0x710 [ 5215.834766][ T253] netlink_sendmsg+0x723/0xbe0 [ 5215.834766][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5215.834766][ T253] ___sys_sendmsg+0xee/0x170 [ 5215.834766][ T253] __sys_sendmsg+0xcd/0x170 [ 5215.834766][ T253] do_syscall_64+0xc6/0x1e0 [ 5215.834766][ T253] [ 5215.837009][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5215.837009][ T253] netdev_get_by_index+0x5e/0x80 [ 5215.837009][ T253] fib6_nh_init+0x3d8/0x1580 [ 5215.837009][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5215.837009][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5215.837009][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5215.837009][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5215.837009][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5215.837009][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5215.837009][ T253] addrconf_dad_begin+0x310/0x670 [ 5215.837009][ T253] addrconf_dad_work+0x10b/0xab0 [ 5215.837009][ T253] process_one_work+0x84d/0x18a0 [ 5215.837009][ T253] worker_thread+0x587/0xd30 [ 5215.837009][ T253] kthread+0x28a/0x350 [ 5215.837009][ T253] ret_from_fork+0x31/0x70 [ 5215.837009][ T253] ret_from_fork_asm+0x1a/0x30 [ 5215.837009][ T253] [ 5215.839159][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5215.839159][ T253] netdev_get_by_index+0x5e/0x80 [ 5215.839159][ T253] fib6_nh_init+0x3d8/0x1580 [ 5215.839159][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5215.839159][ T253] ip6_route_add+0x1c/0x140 [ 5215.839159][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5215.839159][ T253] inet6_addr_add+0x4f8/0xa40 [ 5215.839159][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5215.839159][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5215.839159][ T253] netlink_rcv_skb+0x130/0x360 [ 5215.839159][ T253] netlink_unicast+0x449/0x710 [ 5215.839159][ T253] netlink_sendmsg+0x723/0xbe0 [ 5215.839159][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5215.839159][ T253] ___sys_sendmsg+0xee/0x170 [ 5215.839159][ T253] __sys_sendmsg+0xcd/0x170 [ 5215.839159][ T253] do_syscall_64+0xc6/0x1e0 [ 5215.839159][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5215.839159][ T253] [ 5215.841398][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5215.841398][ T253] netdev_get_by_index+0x5e/0x80 [ 5215.841398][ T253] fib6_nh_init+0x3d8/0x1580 [ 5215.841398][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5215.841398][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5215.841398][ T253] ipv6_add_addr+0x411/0x2000 [ 5215.841398][ T253] inet6_addr_add+0x30e/0xa40 [ 5215.841398][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5215.841398][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5215.841398][ T253] netlink_rcv_skb+0x130/0x360 [ 5215.841398][ T253] netlink_unicast+0x449/0x710 [ 5215.841398][ T253] netlink_sendmsg+0x723/0xbe0 [ 5215.841398][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5215.841398][ T253] ___sys_sendmsg+0xee/0x170 [ 5215.841398][ T253] __sys_sendmsg+0xcd/0x170 [ 5215.841398][ T253] do_syscall_64+0xc6/0x1e0 [ 5215.841398][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5215.841398][ T253] [ 5215.843643][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5215.843643][ T253] netdev_get_by_index+0x5e/0x80 [ 5215.843643][ T253] fib6_nh_init+0x3d8/0x1580 [ 5215.843643][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5215.843643][ T253] ip6_route_add+0x1c/0x140 [ 5215.843643][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5215.843643][ T253] addrconf_add_dev+0xe2/0x170 [ 5215.843643][ T253] inet6_addr_add+0x12f/0xa40 [ 5215.843643][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5215.843643][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5215.843643][ T253] netlink_rcv_skb+0x130/0x360 [ 5215.843643][ T253] netlink_unicast+0x449/0x710 [ 5215.843643][ T253] netlink_sendmsg+0x723/0xbe0 [ 5215.843643][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5215.843643][ T253] ___sys_sendmsg+0xee/0x170 [ 5215.843643][ T253] __sys_sendmsg+0xcd/0x170 [ 5215.843643][ T253] do_syscall_64+0xc6/0x1e0 [ 5215.843643][ T253] [ 5215.845854][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5215.845854][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5215.845854][ T253] ipv6_find_idev+0x102/0x170 [ 5215.845854][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5215.845854][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5215.845854][ T253] netlink_rcv_skb+0x130/0x360 [ 5215.845854][ T253] netlink_unicast+0x449/0x710 [ 5215.845854][ T253] netlink_sendmsg+0x723/0xbe0 [ 5215.845854][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5215.845854][ T253] ___sys_sendmsg+0xee/0x170 [ 5215.845854][ T253] __sys_sendmsg+0xcd/0x170 [ 5215.845854][ T253] do_syscall_64+0xc6/0x1e0 [ 5215.845854][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5215.845854][ T253] [ 5215.847577][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5215.847577][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5215.847577][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5215.847577][ T253] ipv6_find_idev+0x102/0x170 [ 5215.847577][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5215.847577][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5215.847577][ T253] netlink_rcv_skb+0x130/0x360 [ 5215.847577][ T253] netlink_unicast+0x449/0x710 [ 5215.847577][ T253] netlink_sendmsg+0x723/0xbe0 [ 5215.847577][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5215.847577][ T253] ___sys_sendmsg+0xee/0x170 [ 5215.847577][ T253] __sys_sendmsg+0xcd/0x170 [ 5215.847577][ T253] do_syscall_64+0xc6/0x1e0 [ 5215.847577][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5215.847577][ T253] [ 5226.034311][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5226.034737][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5226.034737][ T253] dst_init+0x84/0x4a0 [ 5226.034737][ T253] dst_alloc+0x97/0x150 [ 5226.034737][ T253] ip6_dst_alloc+0x23/0x90 [ 5226.034737][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5226.034737][ T253] ip6_pol_route+0x56f/0x840 [ 5226.034737][ T253] fib6_rule_lookup+0x334/0x630 [ 5226.034737][ T253] ip6_route_output_flags+0x259/0x480 [ 5226.034737][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5226.034737][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5226.034737][ T253] netlink_rcv_skb+0x130/0x360 [ 5226.034737][ T253] netlink_unicast+0x449/0x710 [ 5226.034737][ T253] netlink_sendmsg+0x723/0xbe0 [ 5226.034737][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5226.034737][ T253] ___sys_sendmsg+0xee/0x170 [ 5226.034737][ T253] __sys_sendmsg+0xcd/0x170 [ 5226.034737][ T253] do_syscall_64+0xc6/0x1e0 [ 5226.034737][ T253] [ 5226.036946][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5226.036946][ T253] netdev_get_by_index+0x5e/0x80 [ 5226.036946][ T253] fib6_nh_init+0x3d8/0x1580 [ 5226.036946][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5226.036946][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5226.036946][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5226.036946][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5226.036946][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5226.036946][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5226.036946][ T253] addrconf_dad_begin+0x310/0x670 [ 5226.036946][ T253] addrconf_dad_work+0x10b/0xab0 [ 5226.036946][ T253] process_one_work+0x84d/0x18a0 [ 5226.036946][ T253] worker_thread+0x587/0xd30 [ 5226.036946][ T253] kthread+0x28a/0x350 [ 5226.036946][ T253] ret_from_fork+0x31/0x70 [ 5226.036946][ T253] ret_from_fork_asm+0x1a/0x30 [ 5226.036946][ T253] [ 5226.039105][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5226.039105][ T253] netdev_get_by_index+0x5e/0x80 [ 5226.039105][ T253] fib6_nh_init+0x3d8/0x1580 [ 5226.039105][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5226.039105][ T253] ip6_route_add+0x1c/0x140 [ 5226.039105][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5226.039105][ T253] inet6_addr_add+0x4f8/0xa40 [ 5226.039105][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5226.039105][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5226.039105][ T253] netlink_rcv_skb+0x130/0x360 [ 5226.039105][ T253] netlink_unicast+0x449/0x710 [ 5226.039105][ T253] netlink_sendmsg+0x723/0xbe0 [ 5226.039105][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5226.039105][ T253] ___sys_sendmsg+0xee/0x170 [ 5226.039105][ T253] __sys_sendmsg+0xcd/0x170 [ 5226.039105][ T253] do_syscall_64+0xc6/0x1e0 [ 5226.039105][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5226.039105][ T253] [ 5226.041370][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5226.041370][ T253] netdev_get_by_index+0x5e/0x80 [ 5226.041370][ T253] fib6_nh_init+0x3d8/0x1580 [ 5226.041370][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5226.041370][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5226.041370][ T253] ipv6_add_addr+0x411/0x2000 [ 5226.041370][ T253] inet6_addr_add+0x30e/0xa40 [ 5226.041370][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5226.041370][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5226.041370][ T253] netlink_rcv_skb+0x130/0x360 [ 5226.041370][ T253] netlink_unicast+0x449/0x710 [ 5226.041370][ T253] netlink_sendmsg+0x723/0xbe0 [ 5226.041370][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5226.041370][ T253] ___sys_sendmsg+0xee/0x170 [ 5226.041370][ T253] __sys_sendmsg+0xcd/0x170 [ 5226.041370][ T253] do_syscall_64+0xc6/0x1e0 [ 5226.041370][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5226.041370][ T253] [ 5226.043616][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5226.043616][ T253] netdev_get_by_index+0x5e/0x80 [ 5226.043616][ T253] fib6_nh_init+0x3d8/0x1580 [ 5226.043616][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5226.043616][ T253] ip6_route_add+0x1c/0x140 [ 5226.043616][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5226.043616][ T253] addrconf_add_dev+0xe2/0x170 [ 5226.043616][ T253] inet6_addr_add+0x12f/0xa40 [ 5226.043616][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5226.043616][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5226.043616][ T253] netlink_rcv_skb+0x130/0x360 [ 5226.043616][ T253] netlink_unicast+0x449/0x710 [ 5226.043616][ T253] netlink_sendmsg+0x723/0xbe0 [ 5226.043616][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5226.043616][ T253] ___sys_sendmsg+0xee/0x170 [ 5226.043616][ T253] __sys_sendmsg+0xcd/0x170 [ 5226.043616][ T253] do_syscall_64+0xc6/0x1e0 [ 5226.043616][ T253] [ 5226.045831][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5226.045831][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5226.045831][ T253] ipv6_find_idev+0x102/0x170 [ 5226.045831][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5226.045831][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5226.045831][ T253] netlink_rcv_skb+0x130/0x360 [ 5226.045831][ T253] netlink_unicast+0x449/0x710 [ 5226.045831][ T253] netlink_sendmsg+0x723/0xbe0 [ 5226.045831][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5226.045831][ T253] ___sys_sendmsg+0xee/0x170 [ 5226.045831][ T253] __sys_sendmsg+0xcd/0x170 [ 5226.045831][ T253] do_syscall_64+0xc6/0x1e0 [ 5226.045831][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5226.045831][ T253] [ 5226.047558][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5226.047558][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5226.047558][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5226.047558][ T253] ipv6_find_idev+0x102/0x170 [ 5226.047558][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5226.047558][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5226.047558][ T253] netlink_rcv_skb+0x130/0x360 [ 5226.047558][ T253] netlink_unicast+0x449/0x710 [ 5226.047558][ T253] netlink_sendmsg+0x723/0xbe0 [ 5226.047558][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5226.047558][ T253] ___sys_sendmsg+0xee/0x170 [ 5226.047558][ T253] __sys_sendmsg+0xcd/0x170 [ 5226.047558][ T253] do_syscall_64+0xc6/0x1e0 [ 5226.047558][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5226.047558][ T253] [ 5236.242326][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5236.242748][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5236.242748][ T253] dst_init+0x84/0x4a0 [ 5236.242748][ T253] dst_alloc+0x97/0x150 [ 5236.242748][ T253] ip6_dst_alloc+0x23/0x90 [ 5236.242748][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5236.242748][ T253] ip6_pol_route+0x56f/0x840 [ 5236.242748][ T253] fib6_rule_lookup+0x334/0x630 [ 5236.242748][ T253] ip6_route_output_flags+0x259/0x480 [ 5236.242748][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5236.242748][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5236.242748][ T253] netlink_rcv_skb+0x130/0x360 [ 5236.242748][ T253] netlink_unicast+0x449/0x710 [ 5236.242748][ T253] netlink_sendmsg+0x723/0xbe0 [ 5236.242748][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5236.242748][ T253] ___sys_sendmsg+0xee/0x170 [ 5236.242748][ T253] __sys_sendmsg+0xcd/0x170 [ 5236.242748][ T253] do_syscall_64+0xc6/0x1e0 [ 5236.242748][ T253] [ 5236.244955][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5236.244955][ T253] netdev_get_by_index+0x5e/0x80 [ 5236.244955][ T253] fib6_nh_init+0x3d8/0x1580 [ 5236.244955][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5236.244955][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5236.244955][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5236.244955][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5236.244955][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5236.244955][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5236.244955][ T253] addrconf_dad_begin+0x310/0x670 [ 5236.244955][ T253] addrconf_dad_work+0x10b/0xab0 [ 5236.244955][ T253] process_one_work+0x84d/0x18a0 [ 5236.244955][ T253] worker_thread+0x587/0xd30 [ 5236.244955][ T253] kthread+0x28a/0x350 [ 5236.244955][ T253] ret_from_fork+0x31/0x70 [ 5236.244955][ T253] ret_from_fork_asm+0x1a/0x30 [ 5236.244955][ T253] [ 5236.247118][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5236.247118][ T253] netdev_get_by_index+0x5e/0x80 [ 5236.247118][ T253] fib6_nh_init+0x3d8/0x1580 [ 5236.247118][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5236.247118][ T253] ip6_route_add+0x1c/0x140 [ 5236.247118][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5236.247118][ T253] inet6_addr_add+0x4f8/0xa40 [ 5236.247118][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5236.247118][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5236.247118][ T253] netlink_rcv_skb+0x130/0x360 [ 5236.247118][ T253] netlink_unicast+0x449/0x710 [ 5236.247118][ T253] netlink_sendmsg+0x723/0xbe0 [ 5236.247118][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5236.247118][ T253] ___sys_sendmsg+0xee/0x170 [ 5236.247118][ T253] __sys_sendmsg+0xcd/0x170 [ 5236.247118][ T253] do_syscall_64+0xc6/0x1e0 [ 5236.247118][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5236.247118][ T253] [ 5236.249371][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5236.249371][ T253] netdev_get_by_index+0x5e/0x80 [ 5236.249371][ T253] fib6_nh_init+0x3d8/0x1580 [ 5236.249371][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5236.249371][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5236.249371][ T253] ipv6_add_addr+0x411/0x2000 [ 5236.249371][ T253] inet6_addr_add+0x30e/0xa40 [ 5236.249371][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5236.249371][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5236.249371][ T253] netlink_rcv_skb+0x130/0x360 [ 5236.249371][ T253] netlink_unicast+0x449/0x710 [ 5236.249371][ T253] netlink_sendmsg+0x723/0xbe0 [ 5236.249371][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5236.249371][ T253] ___sys_sendmsg+0xee/0x170 [ 5236.249371][ T253] __sys_sendmsg+0xcd/0x170 [ 5236.249371][ T253] do_syscall_64+0xc6/0x1e0 [ 5236.249371][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5236.249371][ T253] [ 5236.251626][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5236.251626][ T253] netdev_get_by_index+0x5e/0x80 [ 5236.251626][ T253] fib6_nh_init+0x3d8/0x1580 [ 5236.251626][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5236.251626][ T253] ip6_route_add+0x1c/0x140 [ 5236.251626][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5236.251626][ T253] addrconf_add_dev+0xe2/0x170 [ 5236.251626][ T253] inet6_addr_add+0x12f/0xa40 [ 5236.251626][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5236.251626][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5236.251626][ T253] netlink_rcv_skb+0x130/0x360 [ 5236.251626][ T253] netlink_unicast+0x449/0x710 [ 5236.251626][ T253] netlink_sendmsg+0x723/0xbe0 [ 5236.251626][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5236.251626][ T253] ___sys_sendmsg+0xee/0x170 [ 5236.251626][ T253] __sys_sendmsg+0xcd/0x170 [ 5236.251626][ T253] do_syscall_64+0xc6/0x1e0 [ 5236.251626][ T253] [ 5236.253836][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5236.253836][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5236.253836][ T253] ipv6_find_idev+0x102/0x170 [ 5236.253836][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5236.253836][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5236.253836][ T253] netlink_rcv_skb+0x130/0x360 [ 5236.253836][ T253] netlink_unicast+0x449/0x710 [ 5236.253836][ T253] netlink_sendmsg+0x723/0xbe0 [ 5236.253836][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5236.253836][ T253] ___sys_sendmsg+0xee/0x170 [ 5236.253836][ T253] __sys_sendmsg+0xcd/0x170 [ 5236.253836][ T253] do_syscall_64+0xc6/0x1e0 [ 5236.253836][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5236.253836][ T253] [ 5236.255575][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5236.255575][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5236.255575][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5236.255575][ T253] ipv6_find_idev+0x102/0x170 [ 5236.255575][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5236.255575][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5236.255575][ T253] netlink_rcv_skb+0x130/0x360 [ 5236.255575][ T253] netlink_unicast+0x449/0x710 [ 5236.255575][ T253] netlink_sendmsg+0x723/0xbe0 [ 5236.255575][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5236.255575][ T253] ___sys_sendmsg+0xee/0x170 [ 5236.255575][ T253] __sys_sendmsg+0xcd/0x170 [ 5236.255575][ T253] do_syscall_64+0xc6/0x1e0 [ 5236.255575][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5236.255575][ T253] [ 5246.298260][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5246.298669][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5246.298669][ T253] dst_init+0x84/0x4a0 [ 5246.298669][ T253] dst_alloc+0x97/0x150 [ 5246.298669][ T253] ip6_dst_alloc+0x23/0x90 [ 5246.298669][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5246.298669][ T253] ip6_pol_route+0x56f/0x840 [ 5246.298669][ T253] fib6_rule_lookup+0x334/0x630 [ 5246.298669][ T253] ip6_route_output_flags+0x259/0x480 [ 5246.298669][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5246.298669][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5246.298669][ T253] netlink_rcv_skb+0x130/0x360 [ 5246.298669][ T253] netlink_unicast+0x449/0x710 [ 5246.298669][ T253] netlink_sendmsg+0x723/0xbe0 [ 5246.298669][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5246.298669][ T253] ___sys_sendmsg+0xee/0x170 [ 5246.298669][ T253] __sys_sendmsg+0xcd/0x170 [ 5246.298669][ T253] do_syscall_64+0xc6/0x1e0 [ 5246.298669][ T253] [ 5246.300873][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5246.300873][ T253] netdev_get_by_index+0x5e/0x80 [ 5246.300873][ T253] fib6_nh_init+0x3d8/0x1580 [ 5246.300873][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5246.300873][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5246.300873][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5246.300873][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5246.300873][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5246.300873][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5246.300873][ T253] addrconf_dad_begin+0x310/0x670 [ 5246.300873][ T253] addrconf_dad_work+0x10b/0xab0 [ 5246.300873][ T253] process_one_work+0x84d/0x18a0 [ 5246.300873][ T253] worker_thread+0x587/0xd30 [ 5246.300873][ T253] kthread+0x28a/0x350 [ 5246.300873][ T253] ret_from_fork+0x31/0x70 [ 5246.300873][ T253] ret_from_fork_asm+0x1a/0x30 [ 5246.300873][ T253] [ 5246.303028][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5246.303028][ T253] netdev_get_by_index+0x5e/0x80 [ 5246.303028][ T253] fib6_nh_init+0x3d8/0x1580 [ 5246.303028][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5246.303028][ T253] ip6_route_add+0x1c/0x140 [ 5246.303028][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5246.303028][ T253] inet6_addr_add+0x4f8/0xa40 [ 5246.303028][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5246.303028][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5246.303028][ T253] netlink_rcv_skb+0x130/0x360 [ 5246.303028][ T253] netlink_unicast+0x449/0x710 [ 5246.303028][ T253] netlink_sendmsg+0x723/0xbe0 [ 5246.303028][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5246.303028][ T253] ___sys_sendmsg+0xee/0x170 [ 5246.303028][ T253] __sys_sendmsg+0xcd/0x170 [ 5246.303028][ T253] do_syscall_64+0xc6/0x1e0 [ 5246.303028][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5246.303028][ T253] [ 5246.305298][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5246.305298][ T253] netdev_get_by_index+0x5e/0x80 [ 5246.305298][ T253] fib6_nh_init+0x3d8/0x1580 [ 5246.305298][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5246.305298][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5246.305298][ T253] ipv6_add_addr+0x411/0x2000 [ 5246.305298][ T253] inet6_addr_add+0x30e/0xa40 [ 5246.305298][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5246.305298][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5246.305298][ T253] netlink_rcv_skb+0x130/0x360 [ 5246.305298][ T253] netlink_unicast+0x449/0x710 [ 5246.305298][ T253] netlink_sendmsg+0x723/0xbe0 [ 5246.305298][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5246.305298][ T253] ___sys_sendmsg+0xee/0x170 [ 5246.305298][ T253] __sys_sendmsg+0xcd/0x170 [ 5246.305298][ T253] do_syscall_64+0xc6/0x1e0 [ 5246.305298][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5246.305298][ T253] [ 5246.307551][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5246.307551][ T253] netdev_get_by_index+0x5e/0x80 [ 5246.307551][ T253] fib6_nh_init+0x3d8/0x1580 [ 5246.307551][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5246.307551][ T253] ip6_route_add+0x1c/0x140 [ 5246.307551][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5246.307551][ T253] addrconf_add_dev+0xe2/0x170 [ 5246.307551][ T253] inet6_addr_add+0x12f/0xa40 [ 5246.307551][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5246.307551][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5246.307551][ T253] netlink_rcv_skb+0x130/0x360 [ 5246.307551][ T253] netlink_unicast+0x449/0x710 [ 5246.307551][ T253] netlink_sendmsg+0x723/0xbe0 [ 5246.307551][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5246.307551][ T253] ___sys_sendmsg+0xee/0x170 [ 5246.307551][ T253] __sys_sendmsg+0xcd/0x170 [ 5246.307551][ T253] do_syscall_64+0xc6/0x1e0 [ 5246.307551][ T253] [ 5246.309772][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5246.309772][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5246.309772][ T253] ipv6_find_idev+0x102/0x170 [ 5246.309772][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5246.309772][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5246.309772][ T253] netlink_rcv_skb+0x130/0x360 [ 5246.309772][ T253] netlink_unicast+0x449/0x710 [ 5246.309772][ T253] netlink_sendmsg+0x723/0xbe0 [ 5246.309772][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5246.309772][ T253] ___sys_sendmsg+0xee/0x170 [ 5246.309772][ T253] __sys_sendmsg+0xcd/0x170 [ 5246.309772][ T253] do_syscall_64+0xc6/0x1e0 [ 5246.309772][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5246.309772][ T253] [ 5246.311513][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5246.311513][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5246.311513][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5246.311513][ T253] ipv6_find_idev+0x102/0x170 [ 5246.311513][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5246.311513][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5246.311513][ T253] netlink_rcv_skb+0x130/0x360 [ 5246.311513][ T253] netlink_unicast+0x449/0x710 [ 5246.311513][ T253] netlink_sendmsg+0x723/0xbe0 [ 5246.311513][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5246.311513][ T253] ___sys_sendmsg+0xee/0x170 [ 5246.311513][ T253] __sys_sendmsg+0xcd/0x170 [ 5246.311513][ T253] do_syscall_64+0xc6/0x1e0 [ 5246.311513][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5246.311513][ T253] [ 5256.554286][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5256.554719][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5256.554719][ T253] dst_init+0x84/0x4a0 [ 5256.554719][ T253] dst_alloc+0x97/0x150 [ 5256.554719][ T253] ip6_dst_alloc+0x23/0x90 [ 5256.554719][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5256.554719][ T253] ip6_pol_route+0x56f/0x840 [ 5256.554719][ T253] fib6_rule_lookup+0x334/0x630 [ 5256.554719][ T253] ip6_route_output_flags+0x259/0x480 [ 5256.554719][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5256.554719][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5256.554719][ T253] netlink_rcv_skb+0x130/0x360 [ 5256.554719][ T253] netlink_unicast+0x449/0x710 [ 5256.554719][ T253] netlink_sendmsg+0x723/0xbe0 [ 5256.554719][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5256.554719][ T253] ___sys_sendmsg+0xee/0x170 [ 5256.554719][ T253] __sys_sendmsg+0xcd/0x170 [ 5256.554719][ T253] do_syscall_64+0xc6/0x1e0 [ 5256.554719][ T253] [ 5256.556989][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5256.556989][ T253] netdev_get_by_index+0x5e/0x80 [ 5256.556989][ T253] fib6_nh_init+0x3d8/0x1580 [ 5256.556989][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5256.556989][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5256.556989][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5256.556989][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5256.556989][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5256.556989][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5256.556989][ T253] addrconf_dad_begin+0x310/0x670 [ 5256.556989][ T253] addrconf_dad_work+0x10b/0xab0 [ 5256.556989][ T253] process_one_work+0x84d/0x18a0 [ 5256.556989][ T253] worker_thread+0x587/0xd30 [ 5256.556989][ T253] kthread+0x28a/0x350 [ 5256.556989][ T253] ret_from_fork+0x31/0x70 [ 5256.556989][ T253] ret_from_fork_asm+0x1a/0x30 [ 5256.556989][ T253] [ 5256.559196][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5256.559196][ T253] netdev_get_by_index+0x5e/0x80 [ 5256.559196][ T253] fib6_nh_init+0x3d8/0x1580 [ 5256.559196][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5256.559196][ T253] ip6_route_add+0x1c/0x140 [ 5256.559196][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5256.559196][ T253] inet6_addr_add+0x4f8/0xa40 [ 5256.559196][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5256.559196][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5256.559196][ T253] netlink_rcv_skb+0x130/0x360 [ 5256.559196][ T253] netlink_unicast+0x449/0x710 [ 5256.559196][ T253] netlink_sendmsg+0x723/0xbe0 [ 5256.559196][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5256.559196][ T253] ___sys_sendmsg+0xee/0x170 [ 5256.559196][ T253] __sys_sendmsg+0xcd/0x170 [ 5256.559196][ T253] do_syscall_64+0xc6/0x1e0 [ 5256.559196][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5256.559196][ T253] [ 5256.561494][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5256.561494][ T253] netdev_get_by_index+0x5e/0x80 [ 5256.561494][ T253] fib6_nh_init+0x3d8/0x1580 [ 5256.561494][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5256.561494][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5256.561494][ T253] ipv6_add_addr+0x411/0x2000 [ 5256.561494][ T253] inet6_addr_add+0x30e/0xa40 [ 5256.561494][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5256.561494][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5256.561494][ T253] netlink_rcv_skb+0x130/0x360 [ 5256.561494][ T253] netlink_unicast+0x449/0x710 [ 5256.561494][ T253] netlink_sendmsg+0x723/0xbe0 [ 5256.561494][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5256.561494][ T253] ___sys_sendmsg+0xee/0x170 [ 5256.561494][ T253] __sys_sendmsg+0xcd/0x170 [ 5256.561494][ T253] do_syscall_64+0xc6/0x1e0 [ 5256.561494][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5256.561494][ T253] [ 5256.563776][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5256.563776][ T253] netdev_get_by_index+0x5e/0x80 [ 5256.563776][ T253] fib6_nh_init+0x3d8/0x1580 [ 5256.563776][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5256.563776][ T253] ip6_route_add+0x1c/0x140 [ 5256.563776][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5256.563776][ T253] addrconf_add_dev+0xe2/0x170 [ 5256.563776][ T253] inet6_addr_add+0x12f/0xa40 [ 5256.563776][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5256.563776][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5256.563776][ T253] netlink_rcv_skb+0x130/0x360 [ 5256.563776][ T253] netlink_unicast+0x449/0x710 [ 5256.563776][ T253] netlink_sendmsg+0x723/0xbe0 [ 5256.563776][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5256.563776][ T253] ___sys_sendmsg+0xee/0x170 [ 5256.563776][ T253] __sys_sendmsg+0xcd/0x170 [ 5256.563776][ T253] do_syscall_64+0xc6/0x1e0 [ 5256.563776][ T253] [ 5256.566026][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5256.566026][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5256.566026][ T253] ipv6_find_idev+0x102/0x170 [ 5256.566026][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5256.566026][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5256.566026][ T253] netlink_rcv_skb+0x130/0x360 [ 5256.566026][ T253] netlink_unicast+0x449/0x710 [ 5256.566026][ T253] netlink_sendmsg+0x723/0xbe0 [ 5256.566026][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5256.566026][ T253] ___sys_sendmsg+0xee/0x170 [ 5256.566026][ T253] __sys_sendmsg+0xcd/0x170 [ 5256.566026][ T253] do_syscall_64+0xc6/0x1e0 [ 5256.566026][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5256.566026][ T253] [ 5256.567787][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5256.567787][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5256.567787][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5256.567787][ T253] ipv6_find_idev+0x102/0x170 [ 5256.567787][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5256.567787][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5256.567787][ T253] netlink_rcv_skb+0x130/0x360 [ 5256.567787][ T253] netlink_unicast+0x449/0x710 [ 5256.567787][ T253] netlink_sendmsg+0x723/0xbe0 [ 5256.567787][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5256.567787][ T253] ___sys_sendmsg+0xee/0x170 [ 5256.567787][ T253] __sys_sendmsg+0xcd/0x170 [ 5256.567787][ T253] do_syscall_64+0xc6/0x1e0 [ 5256.567787][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5256.567787][ T253] [ 5266.810343][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5266.810771][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5266.810771][ T253] dst_init+0x84/0x4a0 [ 5266.810771][ T253] dst_alloc+0x97/0x150 [ 5266.810771][ T253] ip6_dst_alloc+0x23/0x90 [ 5266.810771][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5266.810771][ T253] ip6_pol_route+0x56f/0x840 [ 5266.810771][ T253] fib6_rule_lookup+0x334/0x630 [ 5266.810771][ T253] ip6_route_output_flags+0x259/0x480 [ 5266.810771][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5266.810771][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5266.810771][ T253] netlink_rcv_skb+0x130/0x360 [ 5266.810771][ T253] netlink_unicast+0x449/0x710 [ 5266.810771][ T253] netlink_sendmsg+0x723/0xbe0 [ 5266.810771][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5266.810771][ T253] ___sys_sendmsg+0xee/0x170 [ 5266.810771][ T253] __sys_sendmsg+0xcd/0x170 [ 5266.810771][ T253] do_syscall_64+0xc6/0x1e0 [ 5266.810771][ T253] [ 5266.813003][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5266.813003][ T253] netdev_get_by_index+0x5e/0x80 [ 5266.813003][ T253] fib6_nh_init+0x3d8/0x1580 [ 5266.813003][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5266.813003][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5266.813003][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5266.813003][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5266.813003][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5266.813003][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5266.813003][ T253] addrconf_dad_begin+0x310/0x670 [ 5266.813003][ T253] addrconf_dad_work+0x10b/0xab0 [ 5266.813003][ T253] process_one_work+0x84d/0x18a0 [ 5266.813003][ T253] worker_thread+0x587/0xd30 [ 5266.813003][ T253] kthread+0x28a/0x350 [ 5266.813003][ T253] ret_from_fork+0x31/0x70 [ 5266.813003][ T253] ret_from_fork_asm+0x1a/0x30 [ 5266.813003][ T253] [ 5266.815193][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5266.815193][ T253] netdev_get_by_index+0x5e/0x80 [ 5266.815193][ T253] fib6_nh_init+0x3d8/0x1580 [ 5266.815193][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5266.815193][ T253] ip6_route_add+0x1c/0x140 [ 5266.815193][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5266.815193][ T253] inet6_addr_add+0x4f8/0xa40 [ 5266.815193][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5266.815193][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5266.815193][ T253] netlink_rcv_skb+0x130/0x360 [ 5266.815193][ T253] netlink_unicast+0x449/0x710 [ 5266.815193][ T253] netlink_sendmsg+0x723/0xbe0 [ 5266.815193][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5266.815193][ T253] ___sys_sendmsg+0xee/0x170 [ 5266.815193][ T253] __sys_sendmsg+0xcd/0x170 [ 5266.815193][ T253] do_syscall_64+0xc6/0x1e0 [ 5266.815193][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5266.815193][ T253] [ 5266.817467][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5266.817467][ T253] netdev_get_by_index+0x5e/0x80 [ 5266.817467][ T253] fib6_nh_init+0x3d8/0x1580 [ 5266.817467][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5266.817467][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5266.817467][ T253] ipv6_add_addr+0x411/0x2000 [ 5266.817467][ T253] inet6_addr_add+0x30e/0xa40 [ 5266.817467][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5266.817467][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5266.817467][ T253] netlink_rcv_skb+0x130/0x360 [ 5266.817467][ T253] netlink_unicast+0x449/0x710 [ 5266.817467][ T253] netlink_sendmsg+0x723/0xbe0 [ 5266.817467][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5266.817467][ T253] ___sys_sendmsg+0xee/0x170 [ 5266.817467][ T253] __sys_sendmsg+0xcd/0x170 [ 5266.817467][ T253] do_syscall_64+0xc6/0x1e0 [ 5266.817467][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5266.817467][ T253] [ 5266.819754][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5266.819754][ T253] netdev_get_by_index+0x5e/0x80 [ 5266.819754][ T253] fib6_nh_init+0x3d8/0x1580 [ 5266.819754][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5266.819754][ T253] ip6_route_add+0x1c/0x140 [ 5266.819754][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5266.819754][ T253] addrconf_add_dev+0xe2/0x170 [ 5266.819754][ T253] inet6_addr_add+0x12f/0xa40 [ 5266.819754][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5266.819754][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5266.819754][ T253] netlink_rcv_skb+0x130/0x360 [ 5266.819754][ T253] netlink_unicast+0x449/0x710 [ 5266.819754][ T253] netlink_sendmsg+0x723/0xbe0 [ 5266.819754][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5266.819754][ T253] ___sys_sendmsg+0xee/0x170 [ 5266.819754][ T253] __sys_sendmsg+0xcd/0x170 [ 5266.819754][ T253] do_syscall_64+0xc6/0x1e0 [ 5266.819754][ T253] [ 5266.822516][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5266.822516][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5266.822516][ T253] ipv6_find_idev+0x102/0x170 [ 5266.822516][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5266.822516][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5266.822516][ T253] netlink_rcv_skb+0x130/0x360 [ 5266.822516][ T253] netlink_unicast+0x449/0x710 [ 5266.822516][ T253] netlink_sendmsg+0x723/0xbe0 [ 5266.822516][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5266.822516][ T253] ___sys_sendmsg+0xee/0x170 [ 5266.822516][ T253] __sys_sendmsg+0xcd/0x170 [ 5266.822516][ T253] do_syscall_64+0xc6/0x1e0 [ 5266.822516][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5266.822516][ T253] [ 5266.824276][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5266.824276][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5266.824276][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5266.824276][ T253] ipv6_find_idev+0x102/0x170 [ 5266.824276][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5266.824276][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5266.824276][ T253] netlink_rcv_skb+0x130/0x360 [ 5266.824276][ T253] netlink_unicast+0x449/0x710 [ 5266.824276][ T253] netlink_sendmsg+0x723/0xbe0 [ 5266.824276][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5266.824276][ T253] ___sys_sendmsg+0xee/0x170 [ 5266.824276][ T253] __sys_sendmsg+0xcd/0x170 [ 5266.824276][ T253] do_syscall_64+0xc6/0x1e0 [ 5266.824276][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5266.824276][ T253] [ 5277.066269][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5277.066775][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5277.066775][ T253] dst_init+0x84/0x4a0 [ 5277.066775][ T253] dst_alloc+0x97/0x150 [ 5277.066775][ T253] ip6_dst_alloc+0x23/0x90 [ 5277.066775][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5277.066775][ T253] ip6_pol_route+0x56f/0x840 [ 5277.066775][ T253] fib6_rule_lookup+0x334/0x630 [ 5277.066775][ T253] ip6_route_output_flags+0x259/0x480 [ 5277.066775][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5277.066775][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5277.066775][ T253] netlink_rcv_skb+0x130/0x360 [ 5277.066775][ T253] netlink_unicast+0x449/0x710 [ 5277.066775][ T253] netlink_sendmsg+0x723/0xbe0 [ 5277.066775][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5277.066775][ T253] ___sys_sendmsg+0xee/0x170 [ 5277.066775][ T253] __sys_sendmsg+0xcd/0x170 [ 5277.066775][ T253] do_syscall_64+0xc6/0x1e0 [ 5277.066775][ T253] [ 5277.069004][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5277.069004][ T253] netdev_get_by_index+0x5e/0x80 [ 5277.069004][ T253] fib6_nh_init+0x3d8/0x1580 [ 5277.069004][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5277.069004][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5277.069004][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5277.069004][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5277.069004][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5277.069004][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5277.069004][ T253] addrconf_dad_begin+0x310/0x670 [ 5277.069004][ T253] addrconf_dad_work+0x10b/0xab0 [ 5277.069004][ T253] process_one_work+0x84d/0x18a0 [ 5277.069004][ T253] worker_thread+0x587/0xd30 [ 5277.069004][ T253] kthread+0x28a/0x350 [ 5277.069004][ T253] ret_from_fork+0x31/0x70 [ 5277.069004][ T253] ret_from_fork_asm+0x1a/0x30 [ 5277.069004][ T253] [ 5277.071179][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5277.071179][ T253] netdev_get_by_index+0x5e/0x80 [ 5277.071179][ T253] fib6_nh_init+0x3d8/0x1580 [ 5277.071179][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5277.071179][ T253] ip6_route_add+0x1c/0x140 [ 5277.071179][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5277.071179][ T253] inet6_addr_add+0x4f8/0xa40 [ 5277.071179][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5277.071179][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5277.071179][ T253] netlink_rcv_skb+0x130/0x360 [ 5277.071179][ T253] netlink_unicast+0x449/0x710 [ 5277.071179][ T253] netlink_sendmsg+0x723/0xbe0 [ 5277.071179][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5277.071179][ T253] ___sys_sendmsg+0xee/0x170 [ 5277.071179][ T253] __sys_sendmsg+0xcd/0x170 [ 5277.071179][ T253] do_syscall_64+0xc6/0x1e0 [ 5277.071179][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5277.071179][ T253] [ 5277.073445][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5277.073445][ T253] netdev_get_by_index+0x5e/0x80 [ 5277.073445][ T253] fib6_nh_init+0x3d8/0x1580 [ 5277.073445][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5277.073445][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5277.073445][ T253] ipv6_add_addr+0x411/0x2000 [ 5277.073445][ T253] inet6_addr_add+0x30e/0xa40 [ 5277.073445][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5277.073445][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5277.073445][ T253] netlink_rcv_skb+0x130/0x360 [ 5277.073445][ T253] netlink_unicast+0x449/0x710 [ 5277.073445][ T253] netlink_sendmsg+0x723/0xbe0 [ 5277.073445][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5277.073445][ T253] ___sys_sendmsg+0xee/0x170 [ 5277.073445][ T253] __sys_sendmsg+0xcd/0x170 [ 5277.073445][ T253] do_syscall_64+0xc6/0x1e0 [ 5277.073445][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5277.073445][ T253] [ 5277.075737][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5277.075737][ T253] netdev_get_by_index+0x5e/0x80 [ 5277.075737][ T253] fib6_nh_init+0x3d8/0x1580 [ 5277.075737][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5277.075737][ T253] ip6_route_add+0x1c/0x140 [ 5277.075737][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5277.075737][ T253] addrconf_add_dev+0xe2/0x170 [ 5277.075737][ T253] inet6_addr_add+0x12f/0xa40 [ 5277.075737][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5277.075737][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5277.075737][ T253] netlink_rcv_skb+0x130/0x360 [ 5277.075737][ T253] netlink_unicast+0x449/0x710 [ 5277.075737][ T253] netlink_sendmsg+0x723/0xbe0 [ 5277.075737][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5277.075737][ T253] ___sys_sendmsg+0xee/0x170 [ 5277.075737][ T253] __sys_sendmsg+0xcd/0x170 [ 5277.075737][ T253] do_syscall_64+0xc6/0x1e0 [ 5277.075737][ T253] [ 5277.077970][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5277.077970][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5277.077970][ T253] ipv6_find_idev+0x102/0x170 [ 5277.077970][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5277.077970][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5277.077970][ T253] netlink_rcv_skb+0x130/0x360 [ 5277.077970][ T253] netlink_unicast+0x449/0x710 [ 5277.077970][ T253] netlink_sendmsg+0x723/0xbe0 [ 5277.077970][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5277.077970][ T253] ___sys_sendmsg+0xee/0x170 [ 5277.077970][ T253] __sys_sendmsg+0xcd/0x170 [ 5277.077970][ T253] do_syscall_64+0xc6/0x1e0 [ 5277.077970][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5277.077970][ T253] [ 5277.079720][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5277.079720][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5277.079720][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5277.079720][ T253] ipv6_find_idev+0x102/0x170 [ 5277.079720][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5277.079720][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5277.079720][ T253] netlink_rcv_skb+0x130/0x360 [ 5277.079720][ T253] netlink_unicast+0x449/0x710 [ 5277.079720][ T253] netlink_sendmsg+0x723/0xbe0 [ 5277.079720][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5277.079720][ T253] ___sys_sendmsg+0xee/0x170 [ 5277.079720][ T253] __sys_sendmsg+0xcd/0x170 [ 5277.079720][ T253] do_syscall_64+0xc6/0x1e0 [ 5277.079720][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5277.079720][ T253] [ 5287.322225][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5287.322740][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5287.322740][ T253] dst_init+0x84/0x4a0 [ 5287.322740][ T253] dst_alloc+0x97/0x150 [ 5287.322740][ T253] ip6_dst_alloc+0x23/0x90 [ 5287.322740][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5287.322740][ T253] ip6_pol_route+0x56f/0x840 [ 5287.322740][ T253] fib6_rule_lookup+0x334/0x630 [ 5287.322740][ T253] ip6_route_output_flags+0x259/0x480 [ 5287.322740][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5287.322740][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5287.322740][ T253] netlink_rcv_skb+0x130/0x360 [ 5287.322740][ T253] netlink_unicast+0x449/0x710 [ 5287.322740][ T253] netlink_sendmsg+0x723/0xbe0 [ 5287.322740][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5287.322740][ T253] ___sys_sendmsg+0xee/0x170 [ 5287.322740][ T253] __sys_sendmsg+0xcd/0x170 [ 5287.322740][ T253] do_syscall_64+0xc6/0x1e0 [ 5287.322740][ T253] [ 5287.325012][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5287.325012][ T253] netdev_get_by_index+0x5e/0x80 [ 5287.325012][ T253] fib6_nh_init+0x3d8/0x1580 [ 5287.325012][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5287.325012][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5287.325012][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5287.325012][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5287.325012][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5287.325012][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5287.325012][ T253] addrconf_dad_begin+0x310/0x670 [ 5287.325012][ T253] addrconf_dad_work+0x10b/0xab0 [ 5287.325012][ T253] process_one_work+0x84d/0x18a0 [ 5287.325012][ T253] worker_thread+0x587/0xd30 [ 5287.325012][ T253] kthread+0x28a/0x350 [ 5287.325012][ T253] ret_from_fork+0x31/0x70 [ 5287.325012][ T253] ret_from_fork_asm+0x1a/0x30 [ 5287.325012][ T253] [ 5287.327573][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5287.327573][ T253] netdev_get_by_index+0x5e/0x80 [ 5287.327573][ T253] fib6_nh_init+0x3d8/0x1580 [ 5287.327573][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5287.327573][ T253] ip6_route_add+0x1c/0x140 [ 5287.327573][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5287.327573][ T253] inet6_addr_add+0x4f8/0xa40 [ 5287.327573][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5287.327573][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5287.327573][ T253] netlink_rcv_skb+0x130/0x360 [ 5287.327573][ T253] netlink_unicast+0x449/0x710 [ 5287.327573][ T253] netlink_sendmsg+0x723/0xbe0 [ 5287.327573][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5287.327573][ T253] ___sys_sendmsg+0xee/0x170 [ 5287.327573][ T253] __sys_sendmsg+0xcd/0x170 [ 5287.327573][ T253] do_syscall_64+0xc6/0x1e0 [ 5287.327573][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5287.327573][ T253] [ 5287.329862][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5287.329862][ T253] netdev_get_by_index+0x5e/0x80 [ 5287.329862][ T253] fib6_nh_init+0x3d8/0x1580 [ 5287.329862][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5287.329862][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5287.329862][ T253] ipv6_add_addr+0x411/0x2000 [ 5287.329862][ T253] inet6_addr_add+0x30e/0xa40 [ 5287.329862][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5287.329862][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5287.329862][ T253] netlink_rcv_skb+0x130/0x360 [ 5287.329862][ T253] netlink_unicast+0x449/0x710 [ 5287.329862][ T253] netlink_sendmsg+0x723/0xbe0 [ 5287.329862][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5287.329862][ T253] ___sys_sendmsg+0xee/0x170 [ 5287.329862][ T253] __sys_sendmsg+0xcd/0x170 [ 5287.329862][ T253] do_syscall_64+0xc6/0x1e0 [ 5287.329862][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5287.329862][ T253] [ 5287.332135][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5287.332135][ T253] netdev_get_by_index+0x5e/0x80 [ 5287.332135][ T253] fib6_nh_init+0x3d8/0x1580 [ 5287.332135][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5287.332135][ T253] ip6_route_add+0x1c/0x140 [ 5287.332135][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5287.332135][ T253] addrconf_add_dev+0xe2/0x170 [ 5287.332135][ T253] inet6_addr_add+0x12f/0xa40 [ 5287.332135][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5287.332135][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5287.332135][ T253] netlink_rcv_skb+0x130/0x360 [ 5287.332135][ T253] netlink_unicast+0x449/0x710 [ 5287.332135][ T253] netlink_sendmsg+0x723/0xbe0 [ 5287.332135][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5287.332135][ T253] ___sys_sendmsg+0xee/0x170 [ 5287.332135][ T253] __sys_sendmsg+0xcd/0x170 [ 5287.332135][ T253] do_syscall_64+0xc6/0x1e0 [ 5287.332135][ T253] [ 5287.334376][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5287.334376][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5287.334376][ T253] ipv6_find_idev+0x102/0x170 [ 5287.334376][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5287.334376][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5287.334376][ T253] netlink_rcv_skb+0x130/0x360 [ 5287.334376][ T253] netlink_unicast+0x449/0x710 [ 5287.334376][ T253] netlink_sendmsg+0x723/0xbe0 [ 5287.334376][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5287.334376][ T253] ___sys_sendmsg+0xee/0x170 [ 5287.334376][ T253] __sys_sendmsg+0xcd/0x170 [ 5287.334376][ T253] do_syscall_64+0xc6/0x1e0 [ 5287.334376][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5287.334376][ T253] [ 5287.336140][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5287.336140][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5287.336140][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5287.336140][ T253] ipv6_find_idev+0x102/0x170 [ 5287.336140][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5287.336140][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5287.336140][ T253] netlink_rcv_skb+0x130/0x360 [ 5287.336140][ T253] netlink_unicast+0x449/0x710 [ 5287.336140][ T253] netlink_sendmsg+0x723/0xbe0 [ 5287.336140][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5287.336140][ T253] ___sys_sendmsg+0xee/0x170 [ 5287.336140][ T253] __sys_sendmsg+0xcd/0x170 [ 5287.336140][ T253] do_syscall_64+0xc6/0x1e0 [ 5287.336140][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5287.336140][ T253] [ 5297.578319][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5297.578803][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5297.578803][ T253] dst_init+0x84/0x4a0 [ 5297.578803][ T253] dst_alloc+0x97/0x150 [ 5297.578803][ T253] ip6_dst_alloc+0x23/0x90 [ 5297.578803][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5297.578803][ T253] ip6_pol_route+0x56f/0x840 [ 5297.578803][ T253] fib6_rule_lookup+0x334/0x630 [ 5297.578803][ T253] ip6_route_output_flags+0x259/0x480 [ 5297.578803][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5297.578803][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5297.578803][ T253] netlink_rcv_skb+0x130/0x360 [ 5297.578803][ T253] netlink_unicast+0x449/0x710 [ 5297.578803][ T253] netlink_sendmsg+0x723/0xbe0 [ 5297.578803][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5297.578803][ T253] ___sys_sendmsg+0xee/0x170 [ 5297.578803][ T253] __sys_sendmsg+0xcd/0x170 [ 5297.578803][ T253] do_syscall_64+0xc6/0x1e0 [ 5297.578803][ T253] [ 5297.581019][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5297.581019][ T253] netdev_get_by_index+0x5e/0x80 [ 5297.581019][ T253] fib6_nh_init+0x3d8/0x1580 [ 5297.581019][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5297.581019][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5297.581019][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5297.581019][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5297.581019][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5297.581019][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5297.581019][ T253] addrconf_dad_begin+0x310/0x670 [ 5297.581019][ T253] addrconf_dad_work+0x10b/0xab0 [ 5297.581019][ T253] process_one_work+0x84d/0x18a0 [ 5297.581019][ T253] worker_thread+0x587/0xd30 [ 5297.581019][ T253] kthread+0x28a/0x350 [ 5297.581019][ T253] ret_from_fork+0x31/0x70 [ 5297.581019][ T253] ret_from_fork_asm+0x1a/0x30 [ 5297.581019][ T253] [ 5297.583181][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5297.583181][ T253] netdev_get_by_index+0x5e/0x80 [ 5297.583181][ T253] fib6_nh_init+0x3d8/0x1580 [ 5297.583181][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5297.583181][ T253] ip6_route_add+0x1c/0x140 [ 5297.583181][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5297.583181][ T253] inet6_addr_add+0x4f8/0xa40 [ 5297.583181][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5297.583181][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5297.583181][ T253] netlink_rcv_skb+0x130/0x360 [ 5297.583181][ T253] netlink_unicast+0x449/0x710 [ 5297.583181][ T253] netlink_sendmsg+0x723/0xbe0 [ 5297.583181][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5297.583181][ T253] ___sys_sendmsg+0xee/0x170 [ 5297.583181][ T253] __sys_sendmsg+0xcd/0x170 [ 5297.583181][ T253] do_syscall_64+0xc6/0x1e0 [ 5297.583181][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5297.583181][ T253] [ 5297.585469][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5297.585469][ T253] netdev_get_by_index+0x5e/0x80 [ 5297.585469][ T253] fib6_nh_init+0x3d8/0x1580 [ 5297.585469][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5297.585469][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5297.585469][ T253] ipv6_add_addr+0x411/0x2000 [ 5297.585469][ T253] inet6_addr_add+0x30e/0xa40 [ 5297.585469][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5297.585469][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5297.585469][ T253] netlink_rcv_skb+0x130/0x360 [ 5297.585469][ T253] netlink_unicast+0x449/0x710 [ 5297.585469][ T253] netlink_sendmsg+0x723/0xbe0 [ 5297.585469][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5297.585469][ T253] ___sys_sendmsg+0xee/0x170 [ 5297.585469][ T253] __sys_sendmsg+0xcd/0x170 [ 5297.585469][ T253] do_syscall_64+0xc6/0x1e0 [ 5297.585469][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5297.585469][ T253] [ 5297.587737][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5297.587737][ T253] netdev_get_by_index+0x5e/0x80 [ 5297.587737][ T253] fib6_nh_init+0x3d8/0x1580 [ 5297.587737][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5297.587737][ T253] ip6_route_add+0x1c/0x140 [ 5297.587737][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5297.587737][ T253] addrconf_add_dev+0xe2/0x170 [ 5297.587737][ T253] inet6_addr_add+0x12f/0xa40 [ 5297.587737][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5297.587737][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5297.587737][ T253] netlink_rcv_skb+0x130/0x360 [ 5297.587737][ T253] netlink_unicast+0x449/0x710 [ 5297.587737][ T253] netlink_sendmsg+0x723/0xbe0 [ 5297.587737][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5297.587737][ T253] ___sys_sendmsg+0xee/0x170 [ 5297.587737][ T253] __sys_sendmsg+0xcd/0x170 [ 5297.587737][ T253] do_syscall_64+0xc6/0x1e0 [ 5297.587737][ T253] [ 5297.589953][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5297.589953][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5297.589953][ T253] ipv6_find_idev+0x102/0x170 [ 5297.589953][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5297.589953][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5297.589953][ T253] netlink_rcv_skb+0x130/0x360 [ 5297.589953][ T253] netlink_unicast+0x449/0x710 [ 5297.589953][ T253] netlink_sendmsg+0x723/0xbe0 [ 5297.589953][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5297.589953][ T253] ___sys_sendmsg+0xee/0x170 [ 5297.589953][ T253] __sys_sendmsg+0xcd/0x170 [ 5297.589953][ T253] do_syscall_64+0xc6/0x1e0 [ 5297.589953][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5297.589953][ T253] [ 5297.591693][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5297.591693][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5297.591693][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5297.591693][ T253] ipv6_find_idev+0x102/0x170 [ 5297.591693][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5297.591693][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5297.591693][ T253] netlink_rcv_skb+0x130/0x360 [ 5297.591693][ T253] netlink_unicast+0x449/0x710 [ 5297.591693][ T253] netlink_sendmsg+0x723/0xbe0 [ 5297.591693][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5297.591693][ T253] ___sys_sendmsg+0xee/0x170 [ 5297.591693][ T253] __sys_sendmsg+0xcd/0x170 [ 5297.591693][ T253] do_syscall_64+0xc6/0x1e0 [ 5297.591693][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5297.591693][ T253] [ 5307.834257][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5307.834786][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5307.834786][ T253] dst_init+0x84/0x4a0 [ 5307.834786][ T253] dst_alloc+0x97/0x150 [ 5307.834786][ T253] ip6_dst_alloc+0x23/0x90 [ 5307.834786][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5307.834786][ T253] ip6_pol_route+0x56f/0x840 [ 5307.834786][ T253] fib6_rule_lookup+0x334/0x630 [ 5307.834786][ T253] ip6_route_output_flags+0x259/0x480 [ 5307.834786][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5307.834786][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5307.834786][ T253] netlink_rcv_skb+0x130/0x360 [ 5307.834786][ T253] netlink_unicast+0x449/0x710 [ 5307.834786][ T253] netlink_sendmsg+0x723/0xbe0 [ 5307.834786][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5307.834786][ T253] ___sys_sendmsg+0xee/0x170 [ 5307.834786][ T253] __sys_sendmsg+0xcd/0x170 [ 5307.834786][ T253] do_syscall_64+0xc6/0x1e0 [ 5307.834786][ T253] [ 5307.837180][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5307.837180][ T253] netdev_get_by_index+0x5e/0x80 [ 5307.837180][ T253] fib6_nh_init+0x3d8/0x1580 [ 5307.837180][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5307.837180][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5307.837180][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5307.837180][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5307.837180][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5307.837180][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5307.837180][ T253] addrconf_dad_begin+0x310/0x670 [ 5307.837180][ T253] addrconf_dad_work+0x10b/0xab0 [ 5307.837180][ T253] process_one_work+0x84d/0x18a0 [ 5307.837180][ T253] worker_thread+0x587/0xd30 [ 5307.837180][ T253] kthread+0x28a/0x350 [ 5307.837180][ T253] ret_from_fork+0x31/0x70 [ 5307.837180][ T253] ret_from_fork_asm+0x1a/0x30 [ 5307.837180][ T253] [ 5307.839482][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5307.839482][ T253] netdev_get_by_index+0x5e/0x80 [ 5307.839482][ T253] fib6_nh_init+0x3d8/0x1580 [ 5307.839482][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5307.839482][ T253] ip6_route_add+0x1c/0x140 [ 5307.839482][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5307.839482][ T253] inet6_addr_add+0x4f8/0xa40 [ 5307.839482][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5307.839482][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5307.839482][ T253] netlink_rcv_skb+0x130/0x360 [ 5307.839482][ T253] netlink_unicast+0x449/0x710 [ 5307.839482][ T253] netlink_sendmsg+0x723/0xbe0 [ 5307.839482][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5307.839482][ T253] ___sys_sendmsg+0xee/0x170 [ 5307.839482][ T253] __sys_sendmsg+0xcd/0x170 [ 5307.839482][ T253] do_syscall_64+0xc6/0x1e0 [ 5307.839482][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5307.839482][ T253] [ 5307.841898][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5307.841898][ T253] netdev_get_by_index+0x5e/0x80 [ 5307.841898][ T253] fib6_nh_init+0x3d8/0x1580 [ 5307.841898][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5307.841898][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5307.841898][ T253] ipv6_add_addr+0x411/0x2000 [ 5307.841898][ T253] inet6_addr_add+0x30e/0xa40 [ 5307.841898][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5307.841898][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5307.841898][ T253] netlink_rcv_skb+0x130/0x360 [ 5307.841898][ T253] netlink_unicast+0x449/0x710 [ 5307.841898][ T253] netlink_sendmsg+0x723/0xbe0 [ 5307.841898][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5307.841898][ T253] ___sys_sendmsg+0xee/0x170 [ 5307.841898][ T253] __sys_sendmsg+0xcd/0x170 [ 5307.841898][ T253] do_syscall_64+0xc6/0x1e0 [ 5307.841898][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5307.841898][ T253] [ 5307.844304][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5307.844304][ T253] netdev_get_by_index+0x5e/0x80 [ 5307.844304][ T253] fib6_nh_init+0x3d8/0x1580 [ 5307.844304][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5307.844304][ T253] ip6_route_add+0x1c/0x140 [ 5307.844304][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5307.844304][ T253] addrconf_add_dev+0xe2/0x170 [ 5307.844304][ T253] inet6_addr_add+0x12f/0xa40 [ 5307.844304][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5307.844304][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5307.844304][ T253] netlink_rcv_skb+0x130/0x360 [ 5307.844304][ T253] netlink_unicast+0x449/0x710 [ 5307.844304][ T253] netlink_sendmsg+0x723/0xbe0 [ 5307.844304][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5307.844304][ T253] ___sys_sendmsg+0xee/0x170 [ 5307.844304][ T253] __sys_sendmsg+0xcd/0x170 [ 5307.844304][ T253] do_syscall_64+0xc6/0x1e0 [ 5307.844304][ T253] [ 5307.846596][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5307.846596][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5307.846596][ T253] ipv6_find_idev+0x102/0x170 [ 5307.846596][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5307.846596][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5307.846596][ T253] netlink_rcv_skb+0x130/0x360 [ 5307.846596][ T253] netlink_unicast+0x449/0x710 [ 5307.846596][ T253] netlink_sendmsg+0x723/0xbe0 [ 5307.846596][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5307.846596][ T253] ___sys_sendmsg+0xee/0x170 [ 5307.846596][ T253] __sys_sendmsg+0xcd/0x170 [ 5307.846596][ T253] do_syscall_64+0xc6/0x1e0 [ 5307.846596][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5307.846596][ T253] [ 5307.848373][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5307.848373][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5307.848373][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5307.848373][ T253] ipv6_find_idev+0x102/0x170 [ 5307.848373][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5307.848373][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5307.848373][ T253] netlink_rcv_skb+0x130/0x360 [ 5307.848373][ T253] netlink_unicast+0x449/0x710 [ 5307.848373][ T253] netlink_sendmsg+0x723/0xbe0 [ 5307.848373][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5307.848373][ T253] ___sys_sendmsg+0xee/0x170 [ 5307.848373][ T253] __sys_sendmsg+0xcd/0x170 [ 5307.848373][ T253] do_syscall_64+0xc6/0x1e0 [ 5307.848373][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5307.848373][ T253] [ 5318.010296][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5318.010778][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5318.010778][ T253] dst_init+0x84/0x4a0 [ 5318.010778][ T253] dst_alloc+0x97/0x150 [ 5318.010778][ T253] ip6_dst_alloc+0x23/0x90 [ 5318.010778][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5318.010778][ T253] ip6_pol_route+0x56f/0x840 [ 5318.010778][ T253] fib6_rule_lookup+0x334/0x630 [ 5318.010778][ T253] ip6_route_output_flags+0x259/0x480 [ 5318.010778][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5318.010778][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5318.010778][ T253] netlink_rcv_skb+0x130/0x360 [ 5318.010778][ T253] netlink_unicast+0x449/0x710 [ 5318.010778][ T253] netlink_sendmsg+0x723/0xbe0 [ 5318.010778][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5318.010778][ T253] ___sys_sendmsg+0xee/0x170 [ 5318.010778][ T253] __sys_sendmsg+0xcd/0x170 [ 5318.010778][ T253] do_syscall_64+0xc6/0x1e0 [ 5318.010778][ T253] [ 5318.012995][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5318.012995][ T253] netdev_get_by_index+0x5e/0x80 [ 5318.012995][ T253] fib6_nh_init+0x3d8/0x1580 [ 5318.012995][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5318.012995][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5318.012995][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5318.012995][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5318.012995][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5318.012995][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5318.012995][ T253] addrconf_dad_begin+0x310/0x670 [ 5318.012995][ T253] addrconf_dad_work+0x10b/0xab0 [ 5318.012995][ T253] process_one_work+0x84d/0x18a0 [ 5318.012995][ T253] worker_thread+0x587/0xd30 [ 5318.012995][ T253] kthread+0x28a/0x350 [ 5318.012995][ T253] ret_from_fork+0x31/0x70 [ 5318.012995][ T253] ret_from_fork_asm+0x1a/0x30 [ 5318.012995][ T253] [ 5318.015170][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5318.015170][ T253] netdev_get_by_index+0x5e/0x80 [ 5318.015170][ T253] fib6_nh_init+0x3d8/0x1580 [ 5318.015170][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5318.015170][ T253] ip6_route_add+0x1c/0x140 [ 5318.015170][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5318.015170][ T253] inet6_addr_add+0x4f8/0xa40 [ 5318.015170][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5318.015170][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5318.015170][ T253] netlink_rcv_skb+0x130/0x360 [ 5318.015170][ T253] netlink_unicast+0x449/0x710 [ 5318.015170][ T253] netlink_sendmsg+0x723/0xbe0 [ 5318.015170][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5318.015170][ T253] ___sys_sendmsg+0xee/0x170 [ 5318.015170][ T253] __sys_sendmsg+0xcd/0x170 [ 5318.015170][ T253] do_syscall_64+0xc6/0x1e0 [ 5318.015170][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5318.015170][ T253] [ 5318.017435][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5318.017435][ T253] netdev_get_by_index+0x5e/0x80 [ 5318.017435][ T253] fib6_nh_init+0x3d8/0x1580 [ 5318.017435][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5318.017435][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5318.017435][ T253] ipv6_add_addr+0x411/0x2000 [ 5318.017435][ T253] inet6_addr_add+0x30e/0xa40 [ 5318.017435][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5318.017435][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5318.017435][ T253] netlink_rcv_skb+0x130/0x360 [ 5318.017435][ T253] netlink_unicast+0x449/0x710 [ 5318.017435][ T253] netlink_sendmsg+0x723/0xbe0 [ 5318.017435][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5318.017435][ T253] ___sys_sendmsg+0xee/0x170 [ 5318.017435][ T253] __sys_sendmsg+0xcd/0x170 [ 5318.017435][ T253] do_syscall_64+0xc6/0x1e0 [ 5318.017435][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5318.017435][ T253] [ 5318.019696][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5318.019696][ T253] netdev_get_by_index+0x5e/0x80 [ 5318.019696][ T253] fib6_nh_init+0x3d8/0x1580 [ 5318.019696][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5318.019696][ T253] ip6_route_add+0x1c/0x140 [ 5318.019696][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5318.019696][ T253] addrconf_add_dev+0xe2/0x170 [ 5318.019696][ T253] inet6_addr_add+0x12f/0xa40 [ 5318.019696][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5318.019696][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5318.019696][ T253] netlink_rcv_skb+0x130/0x360 [ 5318.019696][ T253] netlink_unicast+0x449/0x710 [ 5318.019696][ T253] netlink_sendmsg+0x723/0xbe0 [ 5318.019696][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5318.019696][ T253] ___sys_sendmsg+0xee/0x170 [ 5318.019696][ T253] __sys_sendmsg+0xcd/0x170 [ 5318.019696][ T253] do_syscall_64+0xc6/0x1e0 [ 5318.019696][ T253] [ 5318.021924][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5318.021924][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5318.021924][ T253] ipv6_find_idev+0x102/0x170 [ 5318.021924][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5318.021924][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5318.021924][ T253] netlink_rcv_skb+0x130/0x360 [ 5318.021924][ T253] netlink_unicast+0x449/0x710 [ 5318.021924][ T253] netlink_sendmsg+0x723/0xbe0 [ 5318.021924][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5318.021924][ T253] ___sys_sendmsg+0xee/0x170 [ 5318.021924][ T253] __sys_sendmsg+0xcd/0x170 [ 5318.021924][ T253] do_syscall_64+0xc6/0x1e0 [ 5318.021924][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5318.021924][ T253] [ 5318.023675][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5318.023675][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5318.023675][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5318.023675][ T253] ipv6_find_idev+0x102/0x170 [ 5318.023675][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5318.023675][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5318.023675][ T253] netlink_rcv_skb+0x130/0x360 [ 5318.023675][ T253] netlink_unicast+0x449/0x710 [ 5318.023675][ T253] netlink_sendmsg+0x723/0xbe0 [ 5318.023675][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5318.023675][ T253] ___sys_sendmsg+0xee/0x170 [ 5318.023675][ T253] __sys_sendmsg+0xcd/0x170 [ 5318.023675][ T253] do_syscall_64+0xc6/0x1e0 [ 5318.023675][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5318.023675][ T253] [ 5328.266277][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5328.266711][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5328.266711][ T253] dst_init+0x84/0x4a0 [ 5328.266711][ T253] dst_alloc+0x97/0x150 [ 5328.266711][ T253] ip6_dst_alloc+0x23/0x90 [ 5328.266711][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5328.266711][ T253] ip6_pol_route+0x56f/0x840 [ 5328.266711][ T253] fib6_rule_lookup+0x334/0x630 [ 5328.266711][ T253] ip6_route_output_flags+0x259/0x480 [ 5328.266711][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5328.266711][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5328.266711][ T253] netlink_rcv_skb+0x130/0x360 [ 5328.266711][ T253] netlink_unicast+0x449/0x710 [ 5328.266711][ T253] netlink_sendmsg+0x723/0xbe0 [ 5328.266711][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5328.266711][ T253] ___sys_sendmsg+0xee/0x170 [ 5328.266711][ T253] __sys_sendmsg+0xcd/0x170 [ 5328.266711][ T253] do_syscall_64+0xc6/0x1e0 [ 5328.266711][ T253] [ 5328.268942][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5328.268942][ T253] netdev_get_by_index+0x5e/0x80 [ 5328.268942][ T253] fib6_nh_init+0x3d8/0x1580 [ 5328.268942][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5328.268942][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5328.268942][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5328.268942][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5328.268942][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5328.268942][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5328.268942][ T253] addrconf_dad_begin+0x310/0x670 [ 5328.268942][ T253] addrconf_dad_work+0x10b/0xab0 [ 5328.268942][ T253] process_one_work+0x84d/0x18a0 [ 5328.268942][ T253] worker_thread+0x587/0xd30 [ 5328.268942][ T253] kthread+0x28a/0x350 [ 5328.268942][ T253] ret_from_fork+0x31/0x70 [ 5328.268942][ T253] ret_from_fork_asm+0x1a/0x30 [ 5328.268942][ T253] [ 5328.271594][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5328.271594][ T253] netdev_get_by_index+0x5e/0x80 [ 5328.271594][ T253] fib6_nh_init+0x3d8/0x1580 [ 5328.271594][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5328.271594][ T253] ip6_route_add+0x1c/0x140 [ 5328.271594][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5328.271594][ T253] inet6_addr_add+0x4f8/0xa40 [ 5328.271594][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5328.271594][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5328.271594][ T253] netlink_rcv_skb+0x130/0x360 [ 5328.271594][ T253] netlink_unicast+0x449/0x710 [ 5328.271594][ T253] netlink_sendmsg+0x723/0xbe0 [ 5328.271594][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5328.271594][ T253] ___sys_sendmsg+0xee/0x170 [ 5328.271594][ T253] __sys_sendmsg+0xcd/0x170 [ 5328.271594][ T253] do_syscall_64+0xc6/0x1e0 [ 5328.271594][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5328.271594][ T253] [ 5328.274340][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5328.274340][ T253] netdev_get_by_index+0x5e/0x80 [ 5328.274340][ T253] fib6_nh_init+0x3d8/0x1580 [ 5328.274340][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5328.274340][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5328.274340][ T253] ipv6_add_addr+0x411/0x2000 [ 5328.274340][ T253] inet6_addr_add+0x30e/0xa40 [ 5328.274340][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5328.274340][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5328.274340][ T253] netlink_rcv_skb+0x130/0x360 [ 5328.274340][ T253] netlink_unicast+0x449/0x710 [ 5328.274340][ T253] netlink_sendmsg+0x723/0xbe0 [ 5328.274340][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5328.274340][ T253] ___sys_sendmsg+0xee/0x170 [ 5328.274340][ T253] __sys_sendmsg+0xcd/0x170 [ 5328.274340][ T253] do_syscall_64+0xc6/0x1e0 [ 5328.274340][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5328.274340][ T253] [ 5328.276856][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5328.276856][ T253] netdev_get_by_index+0x5e/0x80 [ 5328.276856][ T253] fib6_nh_init+0x3d8/0x1580 [ 5328.276856][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5328.276856][ T253] ip6_route_add+0x1c/0x140 [ 5328.276856][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5328.276856][ T253] addrconf_add_dev+0xe2/0x170 [ 5328.276856][ T253] inet6_addr_add+0x12f/0xa40 [ 5328.276856][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5328.276856][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5328.276856][ T253] netlink_rcv_skb+0x130/0x360 [ 5328.276856][ T253] netlink_unicast+0x449/0x710 [ 5328.276856][ T253] netlink_sendmsg+0x723/0xbe0 [ 5328.276856][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5328.276856][ T253] ___sys_sendmsg+0xee/0x170 [ 5328.276856][ T253] __sys_sendmsg+0xcd/0x170 [ 5328.276856][ T253] do_syscall_64+0xc6/0x1e0 [ 5328.276856][ T253] [ 5328.279150][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5328.279150][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5328.279150][ T253] ipv6_find_idev+0x102/0x170 [ 5328.279150][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5328.279150][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5328.279150][ T253] netlink_rcv_skb+0x130/0x360 [ 5328.279150][ T253] netlink_unicast+0x449/0x710 [ 5328.279150][ T253] netlink_sendmsg+0x723/0xbe0 [ 5328.279150][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5328.279150][ T253] ___sys_sendmsg+0xee/0x170 [ 5328.279150][ T253] __sys_sendmsg+0xcd/0x170 [ 5328.279150][ T253] do_syscall_64+0xc6/0x1e0 [ 5328.279150][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5328.279150][ T253] [ 5328.281277][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5328.281277][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5328.281277][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5328.281277][ T253] ipv6_find_idev+0x102/0x170 [ 5328.281277][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5328.281277][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5328.281277][ T253] netlink_rcv_skb+0x130/0x360 [ 5328.281277][ T253] netlink_unicast+0x449/0x710 [ 5328.281277][ T253] netlink_sendmsg+0x723/0xbe0 [ 5328.281277][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5328.281277][ T253] ___sys_sendmsg+0xee/0x170 [ 5328.281277][ T253] __sys_sendmsg+0xcd/0x170 [ 5328.281277][ T253] do_syscall_64+0xc6/0x1e0 [ 5328.281277][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5328.281277][ T253] [ 5338.522322][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5338.522806][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5338.522806][ T253] dst_init+0x84/0x4a0 [ 5338.522806][ T253] dst_alloc+0x97/0x150 [ 5338.522806][ T253] ip6_dst_alloc+0x23/0x90 [ 5338.522806][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5338.522806][ T253] ip6_pol_route+0x56f/0x840 [ 5338.522806][ T253] fib6_rule_lookup+0x334/0x630 [ 5338.522806][ T253] ip6_route_output_flags+0x259/0x480 [ 5338.522806][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5338.522806][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5338.522806][ T253] netlink_rcv_skb+0x130/0x360 [ 5338.522806][ T253] netlink_unicast+0x449/0x710 [ 5338.522806][ T253] netlink_sendmsg+0x723/0xbe0 [ 5338.522806][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5338.522806][ T253] ___sys_sendmsg+0xee/0x170 [ 5338.522806][ T253] __sys_sendmsg+0xcd/0x170 [ 5338.522806][ T253] do_syscall_64+0xc6/0x1e0 [ 5338.522806][ T253] [ 5338.525029][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5338.525029][ T253] netdev_get_by_index+0x5e/0x80 [ 5338.525029][ T253] fib6_nh_init+0x3d8/0x1580 [ 5338.525029][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5338.525029][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5338.525029][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5338.525029][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5338.525029][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5338.525029][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5338.525029][ T253] addrconf_dad_begin+0x310/0x670 [ 5338.525029][ T253] addrconf_dad_work+0x10b/0xab0 [ 5338.525029][ T253] process_one_work+0x84d/0x18a0 [ 5338.525029][ T253] worker_thread+0x587/0xd30 [ 5338.525029][ T253] kthread+0x28a/0x350 [ 5338.525029][ T253] ret_from_fork+0x31/0x70 [ 5338.525029][ T253] ret_from_fork_asm+0x1a/0x30 [ 5338.525029][ T253] [ 5338.527187][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5338.527187][ T253] netdev_get_by_index+0x5e/0x80 [ 5338.527187][ T253] fib6_nh_init+0x3d8/0x1580 [ 5338.527187][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5338.527187][ T253] ip6_route_add+0x1c/0x140 [ 5338.527187][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5338.527187][ T253] inet6_addr_add+0x4f8/0xa40 [ 5338.527187][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5338.527187][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5338.527187][ T253] netlink_rcv_skb+0x130/0x360 [ 5338.527187][ T253] netlink_unicast+0x449/0x710 [ 5338.527187][ T253] netlink_sendmsg+0x723/0xbe0 [ 5338.527187][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5338.527187][ T253] ___sys_sendmsg+0xee/0x170 [ 5338.527187][ T253] __sys_sendmsg+0xcd/0x170 [ 5338.527187][ T253] do_syscall_64+0xc6/0x1e0 [ 5338.527187][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5338.527187][ T253] [ 5338.529446][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5338.529446][ T253] netdev_get_by_index+0x5e/0x80 [ 5338.529446][ T253] fib6_nh_init+0x3d8/0x1580 [ 5338.529446][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5338.529446][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5338.529446][ T253] ipv6_add_addr+0x411/0x2000 [ 5338.529446][ T253] inet6_addr_add+0x30e/0xa40 [ 5338.529446][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5338.529446][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5338.529446][ T253] netlink_rcv_skb+0x130/0x360 [ 5338.529446][ T253] netlink_unicast+0x449/0x710 [ 5338.529446][ T253] netlink_sendmsg+0x723/0xbe0 [ 5338.529446][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5338.529446][ T253] ___sys_sendmsg+0xee/0x170 [ 5338.529446][ T253] __sys_sendmsg+0xcd/0x170 [ 5338.529446][ T253] do_syscall_64+0xc6/0x1e0 [ 5338.529446][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5338.529446][ T253] [ 5338.531706][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5338.531706][ T253] netdev_get_by_index+0x5e/0x80 [ 5338.531706][ T253] fib6_nh_init+0x3d8/0x1580 [ 5338.531706][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5338.531706][ T253] ip6_route_add+0x1c/0x140 [ 5338.531706][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5338.531706][ T253] addrconf_add_dev+0xe2/0x170 [ 5338.531706][ T253] inet6_addr_add+0x12f/0xa40 [ 5338.531706][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5338.531706][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5338.531706][ T253] netlink_rcv_skb+0x130/0x360 [ 5338.531706][ T253] netlink_unicast+0x449/0x710 [ 5338.531706][ T253] netlink_sendmsg+0x723/0xbe0 [ 5338.531706][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5338.531706][ T253] ___sys_sendmsg+0xee/0x170 [ 5338.531706][ T253] __sys_sendmsg+0xcd/0x170 [ 5338.531706][ T253] do_syscall_64+0xc6/0x1e0 [ 5338.531706][ T253] [ 5338.533931][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5338.533931][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5338.533931][ T253] ipv6_find_idev+0x102/0x170 [ 5338.533931][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5338.533931][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5338.533931][ T253] netlink_rcv_skb+0x130/0x360 [ 5338.533931][ T253] netlink_unicast+0x449/0x710 [ 5338.533931][ T253] netlink_sendmsg+0x723/0xbe0 [ 5338.533931][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5338.533931][ T253] ___sys_sendmsg+0xee/0x170 [ 5338.533931][ T253] __sys_sendmsg+0xcd/0x170 [ 5338.533931][ T253] do_syscall_64+0xc6/0x1e0 [ 5338.533931][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5338.533931][ T253] [ 5338.535674][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5338.535674][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5338.535674][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5338.535674][ T253] ipv6_find_idev+0x102/0x170 [ 5338.535674][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5338.535674][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5338.535674][ T253] netlink_rcv_skb+0x130/0x360 [ 5338.535674][ T253] netlink_unicast+0x449/0x710 [ 5338.535674][ T253] netlink_sendmsg+0x723/0xbe0 [ 5338.535674][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5338.535674][ T253] ___sys_sendmsg+0xee/0x170 [ 5338.535674][ T253] __sys_sendmsg+0xcd/0x170 [ 5338.535674][ T253] do_syscall_64+0xc6/0x1e0 [ 5338.535674][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5338.535674][ T253] [ 5348.778242][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5348.778710][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5348.778710][ T253] dst_init+0x84/0x4a0 [ 5348.778710][ T253] dst_alloc+0x97/0x150 [ 5348.778710][ T253] ip6_dst_alloc+0x23/0x90 [ 5348.778710][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5348.778710][ T253] ip6_pol_route+0x56f/0x840 [ 5348.778710][ T253] fib6_rule_lookup+0x334/0x630 [ 5348.778710][ T253] ip6_route_output_flags+0x259/0x480 [ 5348.778710][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5348.778710][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5348.778710][ T253] netlink_rcv_skb+0x130/0x360 [ 5348.778710][ T253] netlink_unicast+0x449/0x710 [ 5348.778710][ T253] netlink_sendmsg+0x723/0xbe0 [ 5348.778710][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5348.778710][ T253] ___sys_sendmsg+0xee/0x170 [ 5348.778710][ T253] __sys_sendmsg+0xcd/0x170 [ 5348.778710][ T253] do_syscall_64+0xc6/0x1e0 [ 5348.778710][ T253] [ 5348.781241][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5348.781241][ T253] netdev_get_by_index+0x5e/0x80 [ 5348.781241][ T253] fib6_nh_init+0x3d8/0x1580 [ 5348.781241][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5348.781241][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5348.781241][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5348.781241][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5348.781241][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5348.781241][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5348.781241][ T253] addrconf_dad_begin+0x310/0x670 [ 5348.781241][ T253] addrconf_dad_work+0x10b/0xab0 [ 5348.781241][ T253] process_one_work+0x84d/0x18a0 [ 5348.781241][ T253] worker_thread+0x587/0xd30 [ 5348.781241][ T253] kthread+0x28a/0x350 [ 5348.781241][ T253] ret_from_fork+0x31/0x70 [ 5348.781241][ T253] ret_from_fork_asm+0x1a/0x30 [ 5348.781241][ T253] [ 5348.783760][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5348.783760][ T253] netdev_get_by_index+0x5e/0x80 [ 5348.783760][ T253] fib6_nh_init+0x3d8/0x1580 [ 5348.783760][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5348.783760][ T253] ip6_route_add+0x1c/0x140 [ 5348.783760][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5348.783760][ T253] inet6_addr_add+0x4f8/0xa40 [ 5348.783760][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5348.783760][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5348.783760][ T253] netlink_rcv_skb+0x130/0x360 [ 5348.783760][ T253] netlink_unicast+0x449/0x710 [ 5348.783760][ T253] netlink_sendmsg+0x723/0xbe0 [ 5348.783760][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5348.783760][ T253] ___sys_sendmsg+0xee/0x170 [ 5348.783760][ T253] __sys_sendmsg+0xcd/0x170 [ 5348.783760][ T253] do_syscall_64+0xc6/0x1e0 [ 5348.783760][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5348.783760][ T253] [ 5348.786416][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5348.786416][ T253] netdev_get_by_index+0x5e/0x80 [ 5348.786416][ T253] fib6_nh_init+0x3d8/0x1580 [ 5348.786416][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5348.786416][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5348.786416][ T253] ipv6_add_addr+0x411/0x2000 [ 5348.786416][ T253] inet6_addr_add+0x30e/0xa40 [ 5348.786416][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5348.786416][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5348.786416][ T253] netlink_rcv_skb+0x130/0x360 [ 5348.786416][ T253] netlink_unicast+0x449/0x710 [ 5348.786416][ T253] netlink_sendmsg+0x723/0xbe0 [ 5348.786416][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5348.786416][ T253] ___sys_sendmsg+0xee/0x170 [ 5348.786416][ T253] __sys_sendmsg+0xcd/0x170 [ 5348.786416][ T253] do_syscall_64+0xc6/0x1e0 [ 5348.786416][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5348.786416][ T253] [ 5348.788938][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5348.788938][ T253] netdev_get_by_index+0x5e/0x80 [ 5348.788938][ T253] fib6_nh_init+0x3d8/0x1580 [ 5348.788938][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5348.788938][ T253] ip6_route_add+0x1c/0x140 [ 5348.788938][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5348.788938][ T253] addrconf_add_dev+0xe2/0x170 [ 5348.788938][ T253] inet6_addr_add+0x12f/0xa40 [ 5348.788938][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5348.788938][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5348.788938][ T253] netlink_rcv_skb+0x130/0x360 [ 5348.788938][ T253] netlink_unicast+0x449/0x710 [ 5348.788938][ T253] netlink_sendmsg+0x723/0xbe0 [ 5348.788938][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5348.788938][ T253] ___sys_sendmsg+0xee/0x170 [ 5348.788938][ T253] __sys_sendmsg+0xcd/0x170 [ 5348.788938][ T253] do_syscall_64+0xc6/0x1e0 [ 5348.788938][ T253] [ 5348.791424][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5348.791424][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5348.791424][ T253] ipv6_find_idev+0x102/0x170 [ 5348.791424][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5348.791424][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5348.791424][ T253] netlink_rcv_skb+0x130/0x360 [ 5348.791424][ T253] netlink_unicast+0x449/0x710 [ 5348.791424][ T253] netlink_sendmsg+0x723/0xbe0 [ 5348.791424][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5348.791424][ T253] ___sys_sendmsg+0xee/0x170 [ 5348.791424][ T253] __sys_sendmsg+0xcd/0x170 [ 5348.791424][ T253] do_syscall_64+0xc6/0x1e0 [ 5348.791424][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5348.791424][ T253] [ 5348.793435][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5348.793435][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5348.793435][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5348.793435][ T253] ipv6_find_idev+0x102/0x170 [ 5348.793435][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5348.793435][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5348.793435][ T253] netlink_rcv_skb+0x130/0x360 [ 5348.793435][ T253] netlink_unicast+0x449/0x710 [ 5348.793435][ T253] netlink_sendmsg+0x723/0xbe0 [ 5348.793435][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5348.793435][ T253] ___sys_sendmsg+0xee/0x170 [ 5348.793435][ T253] __sys_sendmsg+0xcd/0x170 [ 5348.793435][ T253] do_syscall_64+0xc6/0x1e0 [ 5348.793435][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5348.793435][ T253] [ 5359.034256][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5359.034761][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5359.034761][ T253] dst_init+0x84/0x4a0 [ 5359.034761][ T253] dst_alloc+0x97/0x150 [ 5359.034761][ T253] ip6_dst_alloc+0x23/0x90 [ 5359.034761][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5359.034761][ T253] ip6_pol_route+0x56f/0x840 [ 5359.034761][ T253] fib6_rule_lookup+0x334/0x630 [ 5359.034761][ T253] ip6_route_output_flags+0x259/0x480 [ 5359.034761][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5359.034761][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5359.034761][ T253] netlink_rcv_skb+0x130/0x360 [ 5359.034761][ T253] netlink_unicast+0x449/0x710 [ 5359.034761][ T253] netlink_sendmsg+0x723/0xbe0 [ 5359.034761][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5359.034761][ T253] ___sys_sendmsg+0xee/0x170 [ 5359.034761][ T253] __sys_sendmsg+0xcd/0x170 [ 5359.034761][ T253] do_syscall_64+0xc6/0x1e0 [ 5359.034761][ T253] [ 5359.037432][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5359.037432][ T253] netdev_get_by_index+0x5e/0x80 [ 5359.037432][ T253] fib6_nh_init+0x3d8/0x1580 [ 5359.037432][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5359.037432][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5359.037432][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5359.037432][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5359.037432][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5359.037432][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5359.037432][ T253] addrconf_dad_begin+0x310/0x670 [ 5359.037432][ T253] addrconf_dad_work+0x10b/0xab0 [ 5359.037432][ T253] process_one_work+0x84d/0x18a0 [ 5359.037432][ T253] worker_thread+0x587/0xd30 [ 5359.037432][ T253] kthread+0x28a/0x350 [ 5359.037432][ T253] ret_from_fork+0x31/0x70 [ 5359.037432][ T253] ret_from_fork_asm+0x1a/0x30 [ 5359.037432][ T253] [ 5359.040030][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5359.040030][ T253] netdev_get_by_index+0x5e/0x80 [ 5359.040030][ T253] fib6_nh_init+0x3d8/0x1580 [ 5359.040030][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5359.040030][ T253] ip6_route_add+0x1c/0x140 [ 5359.040030][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5359.040030][ T253] inet6_addr_add+0x4f8/0xa40 [ 5359.040030][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5359.040030][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5359.040030][ T253] netlink_rcv_skb+0x130/0x360 [ 5359.040030][ T253] netlink_unicast+0x449/0x710 [ 5359.040030][ T253] netlink_sendmsg+0x723/0xbe0 [ 5359.040030][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5359.040030][ T253] ___sys_sendmsg+0xee/0x170 [ 5359.040030][ T253] __sys_sendmsg+0xcd/0x170 [ 5359.040030][ T253] do_syscall_64+0xc6/0x1e0 [ 5359.040030][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5359.040030][ T253] [ 5359.042744][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5359.042744][ T253] netdev_get_by_index+0x5e/0x80 [ 5359.042744][ T253] fib6_nh_init+0x3d8/0x1580 [ 5359.042744][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5359.042744][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5359.042744][ T253] ipv6_add_addr+0x411/0x2000 [ 5359.042744][ T253] inet6_addr_add+0x30e/0xa40 [ 5359.042744][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5359.042744][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5359.042744][ T253] netlink_rcv_skb+0x130/0x360 [ 5359.042744][ T253] netlink_unicast+0x449/0x710 [ 5359.042744][ T253] netlink_sendmsg+0x723/0xbe0 [ 5359.042744][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5359.042744][ T253] ___sys_sendmsg+0xee/0x170 [ 5359.042744][ T253] __sys_sendmsg+0xcd/0x170 [ 5359.042744][ T253] do_syscall_64+0xc6/0x1e0 [ 5359.042744][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5359.042744][ T253] [ 5359.045481][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5359.045481][ T253] netdev_get_by_index+0x5e/0x80 [ 5359.045481][ T253] fib6_nh_init+0x3d8/0x1580 [ 5359.045481][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5359.045481][ T253] ip6_route_add+0x1c/0x140 [ 5359.045481][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5359.045481][ T253] addrconf_add_dev+0xe2/0x170 [ 5359.045481][ T253] inet6_addr_add+0x12f/0xa40 [ 5359.045481][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5359.045481][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5359.045481][ T253] netlink_rcv_skb+0x130/0x360 [ 5359.045481][ T253] netlink_unicast+0x449/0x710 [ 5359.045481][ T253] netlink_sendmsg+0x723/0xbe0 [ 5359.045481][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5359.045481][ T253] ___sys_sendmsg+0xee/0x170 [ 5359.045481][ T253] __sys_sendmsg+0xcd/0x170 [ 5359.045481][ T253] do_syscall_64+0xc6/0x1e0 [ 5359.045481][ T253] [ 5359.048153][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5359.048153][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5359.048153][ T253] ipv6_find_idev+0x102/0x170 [ 5359.048153][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5359.048153][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5359.048153][ T253] netlink_rcv_skb+0x130/0x360 [ 5359.048153][ T253] netlink_unicast+0x449/0x710 [ 5359.048153][ T253] netlink_sendmsg+0x723/0xbe0 [ 5359.048153][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5359.048153][ T253] ___sys_sendmsg+0xee/0x170 [ 5359.048153][ T253] __sys_sendmsg+0xcd/0x170 [ 5359.048153][ T253] do_syscall_64+0xc6/0x1e0 [ 5359.048153][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5359.048153][ T253] [ 5359.050246][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5359.050246][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5359.050246][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5359.050246][ T253] ipv6_find_idev+0x102/0x170 [ 5359.050246][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5359.050246][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5359.050246][ T253] netlink_rcv_skb+0x130/0x360 [ 5359.050246][ T253] netlink_unicast+0x449/0x710 [ 5359.050246][ T253] netlink_sendmsg+0x723/0xbe0 [ 5359.050246][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5359.050246][ T253] ___sys_sendmsg+0xee/0x170 [ 5359.050246][ T253] __sys_sendmsg+0xcd/0x170 [ 5359.050246][ T253] do_syscall_64+0xc6/0x1e0 [ 5359.050246][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5359.050246][ T253] [ 5369.114293][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5369.114774][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5369.114774][ T253] dst_init+0x84/0x4a0 [ 5369.114774][ T253] dst_alloc+0x97/0x150 [ 5369.114774][ T253] ip6_dst_alloc+0x23/0x90 [ 5369.114774][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5369.114774][ T253] ip6_pol_route+0x56f/0x840 [ 5369.114774][ T253] fib6_rule_lookup+0x334/0x630 [ 5369.114774][ T253] ip6_route_output_flags+0x259/0x480 [ 5369.114774][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5369.114774][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5369.114774][ T253] netlink_rcv_skb+0x130/0x360 [ 5369.114774][ T253] netlink_unicast+0x449/0x710 [ 5369.114774][ T253] netlink_sendmsg+0x723/0xbe0 [ 5369.114774][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5369.114774][ T253] ___sys_sendmsg+0xee/0x170 [ 5369.114774][ T253] __sys_sendmsg+0xcd/0x170 [ 5369.114774][ T253] do_syscall_64+0xc6/0x1e0 [ 5369.114774][ T253] [ 5369.117436][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5369.117436][ T253] netdev_get_by_index+0x5e/0x80 [ 5369.117436][ T253] fib6_nh_init+0x3d8/0x1580 [ 5369.117436][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5369.117436][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5369.117436][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5369.117436][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5369.117436][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5369.117436][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5369.117436][ T253] addrconf_dad_begin+0x310/0x670 [ 5369.117436][ T253] addrconf_dad_work+0x10b/0xab0 [ 5369.117436][ T253] process_one_work+0x84d/0x18a0 [ 5369.117436][ T253] worker_thread+0x587/0xd30 [ 5369.117436][ T253] kthread+0x28a/0x350 [ 5369.117436][ T253] ret_from_fork+0x31/0x70 [ 5369.117436][ T253] ret_from_fork_asm+0x1a/0x30 [ 5369.117436][ T253] [ 5369.120028][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5369.120028][ T253] netdev_get_by_index+0x5e/0x80 [ 5369.120028][ T253] fib6_nh_init+0x3d8/0x1580 [ 5369.120028][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5369.120028][ T253] ip6_route_add+0x1c/0x140 [ 5369.120028][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5369.120028][ T253] inet6_addr_add+0x4f8/0xa40 [ 5369.120028][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5369.120028][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5369.120028][ T253] netlink_rcv_skb+0x130/0x360 [ 5369.120028][ T253] netlink_unicast+0x449/0x710 [ 5369.120028][ T253] netlink_sendmsg+0x723/0xbe0 [ 5369.120028][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5369.120028][ T253] ___sys_sendmsg+0xee/0x170 [ 5369.120028][ T253] __sys_sendmsg+0xcd/0x170 [ 5369.120028][ T253] do_syscall_64+0xc6/0x1e0 [ 5369.120028][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5369.120028][ T253] [ 5369.122750][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5369.122750][ T253] netdev_get_by_index+0x5e/0x80 [ 5369.122750][ T253] fib6_nh_init+0x3d8/0x1580 [ 5369.122750][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5369.122750][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5369.122750][ T253] ipv6_add_addr+0x411/0x2000 [ 5369.122750][ T253] inet6_addr_add+0x30e/0xa40 [ 5369.122750][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5369.122750][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5369.122750][ T253] netlink_rcv_skb+0x130/0x360 [ 5369.122750][ T253] netlink_unicast+0x449/0x710 [ 5369.122750][ T253] netlink_sendmsg+0x723/0xbe0 [ 5369.122750][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5369.122750][ T253] ___sys_sendmsg+0xee/0x170 [ 5369.122750][ T253] __sys_sendmsg+0xcd/0x170 [ 5369.122750][ T253] do_syscall_64+0xc6/0x1e0 [ 5369.122750][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5369.122750][ T253] [ 5369.125493][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5369.125493][ T253] netdev_get_by_index+0x5e/0x80 [ 5369.125493][ T253] fib6_nh_init+0x3d8/0x1580 [ 5369.125493][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5369.125493][ T253] ip6_route_add+0x1c/0x140 [ 5369.125493][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5369.125493][ T253] addrconf_add_dev+0xe2/0x170 [ 5369.125493][ T253] inet6_addr_add+0x12f/0xa40 [ 5369.125493][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5369.125493][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5369.125493][ T253] netlink_rcv_skb+0x130/0x360 [ 5369.125493][ T253] netlink_unicast+0x449/0x710 [ 5369.125493][ T253] netlink_sendmsg+0x723/0xbe0 [ 5369.125493][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5369.125493][ T253] ___sys_sendmsg+0xee/0x170 [ 5369.125493][ T253] __sys_sendmsg+0xcd/0x170 [ 5369.125493][ T253] do_syscall_64+0xc6/0x1e0 [ 5369.125493][ T253] [ 5369.128170][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5369.128170][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5369.128170][ T253] ipv6_find_idev+0x102/0x170 [ 5369.128170][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5369.128170][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5369.128170][ T253] netlink_rcv_skb+0x130/0x360 [ 5369.128170][ T253] netlink_unicast+0x449/0x710 [ 5369.128170][ T253] netlink_sendmsg+0x723/0xbe0 [ 5369.128170][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5369.128170][ T253] ___sys_sendmsg+0xee/0x170 [ 5369.128170][ T253] __sys_sendmsg+0xcd/0x170 [ 5369.128170][ T253] do_syscall_64+0xc6/0x1e0 [ 5369.128170][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5369.128170][ T253] [ 5369.130259][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5369.130259][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5369.130259][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5369.130259][ T253] ipv6_find_idev+0x102/0x170 [ 5369.130259][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5369.130259][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5369.130259][ T253] netlink_rcv_skb+0x130/0x360 [ 5369.130259][ T253] netlink_unicast+0x449/0x710 [ 5369.130259][ T253] netlink_sendmsg+0x723/0xbe0 [ 5369.130259][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5369.130259][ T253] ___sys_sendmsg+0xee/0x170 [ 5369.130259][ T253] __sys_sendmsg+0xcd/0x170 [ 5369.130259][ T253] do_syscall_64+0xc6/0x1e0 [ 5369.130259][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5369.130259][ T253] [ 5379.194294][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5379.194787][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5379.194787][ T253] dst_init+0x84/0x4a0 [ 5379.194787][ T253] dst_alloc+0x97/0x150 [ 5379.194787][ T253] ip6_dst_alloc+0x23/0x90 [ 5379.194787][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5379.194787][ T253] ip6_pol_route+0x56f/0x840 [ 5379.194787][ T253] fib6_rule_lookup+0x334/0x630 [ 5379.194787][ T253] ip6_route_output_flags+0x259/0x480 [ 5379.194787][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5379.194787][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5379.194787][ T253] netlink_rcv_skb+0x130/0x360 [ 5379.194787][ T253] netlink_unicast+0x449/0x710 [ 5379.194787][ T253] netlink_sendmsg+0x723/0xbe0 [ 5379.194787][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5379.194787][ T253] ___sys_sendmsg+0xee/0x170 [ 5379.194787][ T253] __sys_sendmsg+0xcd/0x170 [ 5379.194787][ T253] do_syscall_64+0xc6/0x1e0 [ 5379.194787][ T253] [ 5379.197440][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5379.197440][ T253] netdev_get_by_index+0x5e/0x80 [ 5379.197440][ T253] fib6_nh_init+0x3d8/0x1580 [ 5379.197440][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5379.197440][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5379.197440][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5379.197440][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5379.197440][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5379.197440][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5379.197440][ T253] addrconf_dad_begin+0x310/0x670 [ 5379.197440][ T253] addrconf_dad_work+0x10b/0xab0 [ 5379.197440][ T253] process_one_work+0x84d/0x18a0 [ 5379.197440][ T253] worker_thread+0x587/0xd30 [ 5379.197440][ T253] kthread+0x28a/0x350 [ 5379.197440][ T253] ret_from_fork+0x31/0x70 [ 5379.197440][ T253] ret_from_fork_asm+0x1a/0x30 [ 5379.197440][ T253] [ 5379.200034][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5379.200034][ T253] netdev_get_by_index+0x5e/0x80 [ 5379.200034][ T253] fib6_nh_init+0x3d8/0x1580 [ 5379.200034][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5379.200034][ T253] ip6_route_add+0x1c/0x140 [ 5379.200034][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5379.200034][ T253] inet6_addr_add+0x4f8/0xa40 [ 5379.200034][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5379.200034][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5379.200034][ T253] netlink_rcv_skb+0x130/0x360 [ 5379.200034][ T253] netlink_unicast+0x449/0x710 [ 5379.200034][ T253] netlink_sendmsg+0x723/0xbe0 [ 5379.200034][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5379.200034][ T253] ___sys_sendmsg+0xee/0x170 [ 5379.200034][ T253] __sys_sendmsg+0xcd/0x170 [ 5379.200034][ T253] do_syscall_64+0xc6/0x1e0 [ 5379.200034][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5379.200034][ T253] [ 5379.202740][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5379.202740][ T253] netdev_get_by_index+0x5e/0x80 [ 5379.202740][ T253] fib6_nh_init+0x3d8/0x1580 [ 5379.202740][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5379.202740][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5379.202740][ T253] ipv6_add_addr+0x411/0x2000 [ 5379.202740][ T253] inet6_addr_add+0x30e/0xa40 [ 5379.202740][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5379.202740][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5379.202740][ T253] netlink_rcv_skb+0x130/0x360 [ 5379.202740][ T253] netlink_unicast+0x449/0x710 [ 5379.202740][ T253] netlink_sendmsg+0x723/0xbe0 [ 5379.202740][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5379.202740][ T253] ___sys_sendmsg+0xee/0x170 [ 5379.202740][ T253] __sys_sendmsg+0xcd/0x170 [ 5379.202740][ T253] do_syscall_64+0xc6/0x1e0 [ 5379.202740][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5379.202740][ T253] [ 5379.205364][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5379.205364][ T253] netdev_get_by_index+0x5e/0x80 [ 5379.205364][ T253] fib6_nh_init+0x3d8/0x1580 [ 5379.205364][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5379.205364][ T253] ip6_route_add+0x1c/0x140 [ 5379.205364][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5379.205364][ T253] addrconf_add_dev+0xe2/0x170 [ 5379.205364][ T253] inet6_addr_add+0x12f/0xa40 [ 5379.205364][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5379.205364][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5379.205364][ T253] netlink_rcv_skb+0x130/0x360 [ 5379.205364][ T253] netlink_unicast+0x449/0x710 [ 5379.205364][ T253] netlink_sendmsg+0x723/0xbe0 [ 5379.205364][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5379.205364][ T253] ___sys_sendmsg+0xee/0x170 [ 5379.205364][ T253] __sys_sendmsg+0xcd/0x170 [ 5379.205364][ T253] do_syscall_64+0xc6/0x1e0 [ 5379.205364][ T253] [ 5379.208032][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5379.208032][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5379.208032][ T253] ipv6_find_idev+0x102/0x170 [ 5379.208032][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5379.208032][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5379.208032][ T253] netlink_rcv_skb+0x130/0x360 [ 5379.208032][ T253] netlink_unicast+0x449/0x710 [ 5379.208032][ T253] netlink_sendmsg+0x723/0xbe0 [ 5379.208032][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5379.208032][ T253] ___sys_sendmsg+0xee/0x170 [ 5379.208032][ T253] __sys_sendmsg+0xcd/0x170 [ 5379.208032][ T253] do_syscall_64+0xc6/0x1e0 [ 5379.208032][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5379.208032][ T253] [ 5379.210113][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5379.210113][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5379.210113][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5379.210113][ T253] ipv6_find_idev+0x102/0x170 [ 5379.210113][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5379.210113][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5379.210113][ T253] netlink_rcv_skb+0x130/0x360 [ 5379.210113][ T253] netlink_unicast+0x449/0x710 [ 5379.210113][ T253] netlink_sendmsg+0x723/0xbe0 [ 5379.210113][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5379.210113][ T253] ___sys_sendmsg+0xee/0x170 [ 5379.210113][ T253] __sys_sendmsg+0xcd/0x170 [ 5379.210113][ T253] do_syscall_64+0xc6/0x1e0 [ 5379.210113][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5379.210113][ T253] [ 5389.450310][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5389.450813][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5389.450813][ T253] dst_init+0x84/0x4a0 [ 5389.450813][ T253] dst_alloc+0x97/0x150 [ 5389.450813][ T253] ip6_dst_alloc+0x23/0x90 [ 5389.450813][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5389.450813][ T253] ip6_pol_route+0x56f/0x840 [ 5389.450813][ T253] fib6_rule_lookup+0x334/0x630 [ 5389.450813][ T253] ip6_route_output_flags+0x259/0x480 [ 5389.450813][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5389.450813][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5389.450813][ T253] netlink_rcv_skb+0x130/0x360 [ 5389.450813][ T253] netlink_unicast+0x449/0x710 [ 5389.450813][ T253] netlink_sendmsg+0x723/0xbe0 [ 5389.450813][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5389.450813][ T253] ___sys_sendmsg+0xee/0x170 [ 5389.450813][ T253] __sys_sendmsg+0xcd/0x170 [ 5389.450813][ T253] do_syscall_64+0xc6/0x1e0 [ 5389.450813][ T253] [ 5389.453463][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5389.453463][ T253] netdev_get_by_index+0x5e/0x80 [ 5389.453463][ T253] fib6_nh_init+0x3d8/0x1580 [ 5389.453463][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5389.453463][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5389.453463][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5389.453463][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5389.453463][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5389.453463][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5389.453463][ T253] addrconf_dad_begin+0x310/0x670 [ 5389.453463][ T253] addrconf_dad_work+0x10b/0xab0 [ 5389.453463][ T253] process_one_work+0x84d/0x18a0 [ 5389.453463][ T253] worker_thread+0x587/0xd30 [ 5389.453463][ T253] kthread+0x28a/0x350 [ 5389.453463][ T253] ret_from_fork+0x31/0x70 [ 5389.453463][ T253] ret_from_fork_asm+0x1a/0x30 [ 5389.453463][ T253] [ 5389.456077][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5389.456077][ T253] netdev_get_by_index+0x5e/0x80 [ 5389.456077][ T253] fib6_nh_init+0x3d8/0x1580 [ 5389.456077][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5389.456077][ T253] ip6_route_add+0x1c/0x140 [ 5389.456077][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5389.456077][ T253] inet6_addr_add+0x4f8/0xa40 [ 5389.456077][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5389.456077][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5389.456077][ T253] netlink_rcv_skb+0x130/0x360 [ 5389.456077][ T253] netlink_unicast+0x449/0x710 [ 5389.456077][ T253] netlink_sendmsg+0x723/0xbe0 [ 5389.456077][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5389.456077][ T253] ___sys_sendmsg+0xee/0x170 [ 5389.456077][ T253] __sys_sendmsg+0xcd/0x170 [ 5389.456077][ T253] do_syscall_64+0xc6/0x1e0 [ 5389.456077][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5389.456077][ T253] [ 5389.458796][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5389.458796][ T253] netdev_get_by_index+0x5e/0x80 [ 5389.458796][ T253] fib6_nh_init+0x3d8/0x1580 [ 5389.458796][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5389.458796][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5389.458796][ T253] ipv6_add_addr+0x411/0x2000 [ 5389.458796][ T253] inet6_addr_add+0x30e/0xa40 [ 5389.458796][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5389.458796][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5389.458796][ T253] netlink_rcv_skb+0x130/0x360 [ 5389.458796][ T253] netlink_unicast+0x449/0x710 [ 5389.458796][ T253] netlink_sendmsg+0x723/0xbe0 [ 5389.458796][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5389.458796][ T253] ___sys_sendmsg+0xee/0x170 [ 5389.458796][ T253] __sys_sendmsg+0xcd/0x170 [ 5389.458796][ T253] do_syscall_64+0xc6/0x1e0 [ 5389.458796][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5389.458796][ T253] [ 5389.461516][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5389.461516][ T253] netdev_get_by_index+0x5e/0x80 [ 5389.461516][ T253] fib6_nh_init+0x3d8/0x1580 [ 5389.461516][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5389.461516][ T253] ip6_route_add+0x1c/0x140 [ 5389.461516][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5389.461516][ T253] addrconf_add_dev+0xe2/0x170 [ 5389.461516][ T253] inet6_addr_add+0x12f/0xa40 [ 5389.461516][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5389.461516][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5389.461516][ T253] netlink_rcv_skb+0x130/0x360 [ 5389.461516][ T253] netlink_unicast+0x449/0x710 [ 5389.461516][ T253] netlink_sendmsg+0x723/0xbe0 [ 5389.461516][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5389.461516][ T253] ___sys_sendmsg+0xee/0x170 [ 5389.461516][ T253] __sys_sendmsg+0xcd/0x170 [ 5389.461516][ T253] do_syscall_64+0xc6/0x1e0 [ 5389.461516][ T253] [ 5389.464195][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5389.464195][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5389.464195][ T253] ipv6_find_idev+0x102/0x170 [ 5389.464195][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5389.464195][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5389.464195][ T253] netlink_rcv_skb+0x130/0x360 [ 5389.464195][ T253] netlink_unicast+0x449/0x710 [ 5389.464195][ T253] netlink_sendmsg+0x723/0xbe0 [ 5389.464195][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5389.464195][ T253] ___sys_sendmsg+0xee/0x170 [ 5389.464195][ T253] __sys_sendmsg+0xcd/0x170 [ 5389.464195][ T253] do_syscall_64+0xc6/0x1e0 [ 5389.464195][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5389.464195][ T253] [ 5389.466292][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5389.466292][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5389.466292][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5389.466292][ T253] ipv6_find_idev+0x102/0x170 [ 5389.466292][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5389.466292][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5389.466292][ T253] netlink_rcv_skb+0x130/0x360 [ 5389.466292][ T253] netlink_unicast+0x449/0x710 [ 5389.466292][ T253] netlink_sendmsg+0x723/0xbe0 [ 5389.466292][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5389.466292][ T253] ___sys_sendmsg+0xee/0x170 [ 5389.466292][ T253] __sys_sendmsg+0xcd/0x170 [ 5389.466292][ T253] do_syscall_64+0xc6/0x1e0 [ 5389.466292][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5389.466292][ T253] [ 5399.706303][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5399.706778][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5399.706778][ T253] dst_init+0x84/0x4a0 [ 5399.706778][ T253] dst_alloc+0x97/0x150 [ 5399.706778][ T253] ip6_dst_alloc+0x23/0x90 [ 5399.706778][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5399.706778][ T253] ip6_pol_route+0x56f/0x840 [ 5399.706778][ T253] fib6_rule_lookup+0x334/0x630 [ 5399.706778][ T253] ip6_route_output_flags+0x259/0x480 [ 5399.706778][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5399.706778][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5399.706778][ T253] netlink_rcv_skb+0x130/0x360 [ 5399.706778][ T253] netlink_unicast+0x449/0x710 [ 5399.706778][ T253] netlink_sendmsg+0x723/0xbe0 [ 5399.706778][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5399.706778][ T253] ___sys_sendmsg+0xee/0x170 [ 5399.706778][ T253] __sys_sendmsg+0xcd/0x170 [ 5399.706778][ T253] do_syscall_64+0xc6/0x1e0 [ 5399.706778][ T253] [ 5399.708981][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5399.708981][ T253] netdev_get_by_index+0x5e/0x80 [ 5399.708981][ T253] fib6_nh_init+0x3d8/0x1580 [ 5399.708981][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5399.708981][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5399.708981][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5399.708981][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5399.708981][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5399.708981][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5399.708981][ T253] addrconf_dad_begin+0x310/0x670 [ 5399.708981][ T253] addrconf_dad_work+0x10b/0xab0 [ 5399.708981][ T253] process_one_work+0x84d/0x18a0 [ 5399.708981][ T253] worker_thread+0x587/0xd30 [ 5399.708981][ T253] kthread+0x28a/0x350 [ 5399.708981][ T253] ret_from_fork+0x31/0x70 [ 5399.708981][ T253] ret_from_fork_asm+0x1a/0x30 [ 5399.708981][ T253] [ 5399.711118][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5399.711118][ T253] netdev_get_by_index+0x5e/0x80 [ 5399.711118][ T253] fib6_nh_init+0x3d8/0x1580 [ 5399.711118][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5399.711118][ T253] ip6_route_add+0x1c/0x140 [ 5399.711118][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5399.711118][ T253] inet6_addr_add+0x4f8/0xa40 [ 5399.711118][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5399.711118][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5399.711118][ T253] netlink_rcv_skb+0x130/0x360 [ 5399.711118][ T253] netlink_unicast+0x449/0x710 [ 5399.711118][ T253] netlink_sendmsg+0x723/0xbe0 [ 5399.711118][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5399.711118][ T253] ___sys_sendmsg+0xee/0x170 [ 5399.711118][ T253] __sys_sendmsg+0xcd/0x170 [ 5399.711118][ T253] do_syscall_64+0xc6/0x1e0 [ 5399.711118][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5399.711118][ T253] [ 5399.713355][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5399.713355][ T253] netdev_get_by_index+0x5e/0x80 [ 5399.713355][ T253] fib6_nh_init+0x3d8/0x1580 [ 5399.713355][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5399.713355][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5399.713355][ T253] ipv6_add_addr+0x411/0x2000 [ 5399.713355][ T253] inet6_addr_add+0x30e/0xa40 [ 5399.713355][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5399.713355][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5399.713355][ T253] netlink_rcv_skb+0x130/0x360 [ 5399.713355][ T253] netlink_unicast+0x449/0x710 [ 5399.713355][ T253] netlink_sendmsg+0x723/0xbe0 [ 5399.713355][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5399.713355][ T253] ___sys_sendmsg+0xee/0x170 [ 5399.713355][ T253] __sys_sendmsg+0xcd/0x170 [ 5399.713355][ T253] do_syscall_64+0xc6/0x1e0 [ 5399.713355][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5399.713355][ T253] [ 5399.715597][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5399.715597][ T253] netdev_get_by_index+0x5e/0x80 [ 5399.715597][ T253] fib6_nh_init+0x3d8/0x1580 [ 5399.715597][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5399.715597][ T253] ip6_route_add+0x1c/0x140 [ 5399.715597][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5399.715597][ T253] addrconf_add_dev+0xe2/0x170 [ 5399.715597][ T253] inet6_addr_add+0x12f/0xa40 [ 5399.715597][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5399.715597][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5399.715597][ T253] netlink_rcv_skb+0x130/0x360 [ 5399.715597][ T253] netlink_unicast+0x449/0x710 [ 5399.715597][ T253] netlink_sendmsg+0x723/0xbe0 [ 5399.715597][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5399.715597][ T253] ___sys_sendmsg+0xee/0x170 [ 5399.715597][ T253] __sys_sendmsg+0xcd/0x170 [ 5399.715597][ T253] do_syscall_64+0xc6/0x1e0 [ 5399.715597][ T253] [ 5399.717798][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5399.717798][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5399.717798][ T253] ipv6_find_idev+0x102/0x170 [ 5399.717798][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5399.717798][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5399.717798][ T253] netlink_rcv_skb+0x130/0x360 [ 5399.717798][ T253] netlink_unicast+0x449/0x710 [ 5399.717798][ T253] netlink_sendmsg+0x723/0xbe0 [ 5399.717798][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5399.717798][ T253] ___sys_sendmsg+0xee/0x170 [ 5399.717798][ T253] __sys_sendmsg+0xcd/0x170 [ 5399.717798][ T253] do_syscall_64+0xc6/0x1e0 [ 5399.717798][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5399.717798][ T253] [ 5399.719519][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5399.719519][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5399.719519][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5399.719519][ T253] ipv6_find_idev+0x102/0x170 [ 5399.719519][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5399.719519][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5399.719519][ T253] netlink_rcv_skb+0x130/0x360 [ 5399.719519][ T253] netlink_unicast+0x449/0x710 [ 5399.719519][ T253] netlink_sendmsg+0x723/0xbe0 [ 5399.719519][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5399.719519][ T253] ___sys_sendmsg+0xee/0x170 [ 5399.719519][ T253] __sys_sendmsg+0xcd/0x170 [ 5399.719519][ T253] do_syscall_64+0xc6/0x1e0 [ 5399.719519][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5399.719519][ T253] [ 5409.962302][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5409.962793][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5409.962793][ T253] dst_init+0x84/0x4a0 [ 5409.962793][ T253] dst_alloc+0x97/0x150 [ 5409.962793][ T253] ip6_dst_alloc+0x23/0x90 [ 5409.962793][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5409.962793][ T253] ip6_pol_route+0x56f/0x840 [ 5409.962793][ T253] fib6_rule_lookup+0x334/0x630 [ 5409.962793][ T253] ip6_route_output_flags+0x259/0x480 [ 5409.962793][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5409.962793][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5409.962793][ T253] netlink_rcv_skb+0x130/0x360 [ 5409.962793][ T253] netlink_unicast+0x449/0x710 [ 5409.962793][ T253] netlink_sendmsg+0x723/0xbe0 [ 5409.962793][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5409.962793][ T253] ___sys_sendmsg+0xee/0x170 [ 5409.962793][ T253] __sys_sendmsg+0xcd/0x170 [ 5409.962793][ T253] do_syscall_64+0xc6/0x1e0 [ 5409.962793][ T253] [ 5409.965017][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5409.965017][ T253] netdev_get_by_index+0x5e/0x80 [ 5409.965017][ T253] fib6_nh_init+0x3d8/0x1580 [ 5409.965017][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5409.965017][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5409.965017][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5409.965017][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5409.965017][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5409.965017][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5409.965017][ T253] addrconf_dad_begin+0x310/0x670 [ 5409.965017][ T253] addrconf_dad_work+0x10b/0xab0 [ 5409.965017][ T253] process_one_work+0x84d/0x18a0 [ 5409.965017][ T253] worker_thread+0x587/0xd30 [ 5409.965017][ T253] kthread+0x28a/0x350 [ 5409.965017][ T253] ret_from_fork+0x31/0x70 [ 5409.965017][ T253] ret_from_fork_asm+0x1a/0x30 [ 5409.965017][ T253] [ 5409.967530][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5409.967530][ T253] netdev_get_by_index+0x5e/0x80 [ 5409.967530][ T253] fib6_nh_init+0x3d8/0x1580 [ 5409.967530][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5409.967530][ T253] ip6_route_add+0x1c/0x140 [ 5409.967530][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5409.967530][ T253] inet6_addr_add+0x4f8/0xa40 [ 5409.967530][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5409.967530][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5409.967530][ T253] netlink_rcv_skb+0x130/0x360 [ 5409.967530][ T253] netlink_unicast+0x449/0x710 [ 5409.967530][ T253] netlink_sendmsg+0x723/0xbe0 [ 5409.967530][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5409.967530][ T253] ___sys_sendmsg+0xee/0x170 [ 5409.967530][ T253] __sys_sendmsg+0xcd/0x170 [ 5409.967530][ T253] do_syscall_64+0xc6/0x1e0 [ 5409.967530][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5409.967530][ T253] [ 5409.969769][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5409.969769][ T253] netdev_get_by_index+0x5e/0x80 [ 5409.969769][ T253] fib6_nh_init+0x3d8/0x1580 [ 5409.969769][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5409.969769][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5409.969769][ T253] ipv6_add_addr+0x411/0x2000 [ 5409.969769][ T253] inet6_addr_add+0x30e/0xa40 [ 5409.969769][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5409.969769][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5409.969769][ T253] netlink_rcv_skb+0x130/0x360 [ 5409.969769][ T253] netlink_unicast+0x449/0x710 [ 5409.969769][ T253] netlink_sendmsg+0x723/0xbe0 [ 5409.969769][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5409.969769][ T253] ___sys_sendmsg+0xee/0x170 [ 5409.969769][ T253] __sys_sendmsg+0xcd/0x170 [ 5409.969769][ T253] do_syscall_64+0xc6/0x1e0 [ 5409.969769][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5409.969769][ T253] [ 5409.972023][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5409.972023][ T253] netdev_get_by_index+0x5e/0x80 [ 5409.972023][ T253] fib6_nh_init+0x3d8/0x1580 [ 5409.972023][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5409.972023][ T253] ip6_route_add+0x1c/0x140 [ 5409.972023][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5409.972023][ T253] addrconf_add_dev+0xe2/0x170 [ 5409.972023][ T253] inet6_addr_add+0x12f/0xa40 [ 5409.972023][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5409.972023][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5409.972023][ T253] netlink_rcv_skb+0x130/0x360 [ 5409.972023][ T253] netlink_unicast+0x449/0x710 [ 5409.972023][ T253] netlink_sendmsg+0x723/0xbe0 [ 5409.972023][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5409.972023][ T253] ___sys_sendmsg+0xee/0x170 [ 5409.972023][ T253] __sys_sendmsg+0xcd/0x170 [ 5409.972023][ T253] do_syscall_64+0xc6/0x1e0 [ 5409.972023][ T253] [ 5409.974224][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5409.974224][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5409.974224][ T253] ipv6_find_idev+0x102/0x170 [ 5409.974224][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5409.974224][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5409.974224][ T253] netlink_rcv_skb+0x130/0x360 [ 5409.974224][ T253] netlink_unicast+0x449/0x710 [ 5409.974224][ T253] netlink_sendmsg+0x723/0xbe0 [ 5409.974224][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5409.974224][ T253] ___sys_sendmsg+0xee/0x170 [ 5409.974224][ T253] __sys_sendmsg+0xcd/0x170 [ 5409.974224][ T253] do_syscall_64+0xc6/0x1e0 [ 5409.974224][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5409.974224][ T253] [ 5409.976058][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5409.976058][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5409.976058][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5409.976058][ T253] ipv6_find_idev+0x102/0x170 [ 5409.976058][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5409.976058][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5409.976058][ T253] netlink_rcv_skb+0x130/0x360 [ 5409.976058][ T253] netlink_unicast+0x449/0x710 [ 5409.976058][ T253] netlink_sendmsg+0x723/0xbe0 [ 5409.976058][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5409.976058][ T253] ___sys_sendmsg+0xee/0x170 [ 5409.976058][ T253] __sys_sendmsg+0xcd/0x170 [ 5409.976058][ T253] do_syscall_64+0xc6/0x1e0 [ 5409.976058][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5409.976058][ T253] [ 5420.218339][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5420.218839][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5420.218839][ T253] dst_init+0x84/0x4a0 [ 5420.218839][ T253] dst_alloc+0x97/0x150 [ 5420.218839][ T253] ip6_dst_alloc+0x23/0x90 [ 5420.218839][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5420.218839][ T253] ip6_pol_route+0x56f/0x840 [ 5420.218839][ T253] fib6_rule_lookup+0x334/0x630 [ 5420.218839][ T253] ip6_route_output_flags+0x259/0x480 [ 5420.218839][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5420.218839][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5420.218839][ T253] netlink_rcv_skb+0x130/0x360 [ 5420.218839][ T253] netlink_unicast+0x449/0x710 [ 5420.218839][ T253] netlink_sendmsg+0x723/0xbe0 [ 5420.218839][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5420.218839][ T253] ___sys_sendmsg+0xee/0x170 [ 5420.218839][ T253] __sys_sendmsg+0xcd/0x170 [ 5420.218839][ T253] do_syscall_64+0xc6/0x1e0 [ 5420.218839][ T253] [ 5420.221027][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5420.221027][ T253] netdev_get_by_index+0x5e/0x80 [ 5420.221027][ T253] fib6_nh_init+0x3d8/0x1580 [ 5420.221027][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5420.221027][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5420.221027][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5420.221027][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5420.221027][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5420.221027][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5420.221027][ T253] addrconf_dad_begin+0x310/0x670 [ 5420.221027][ T253] addrconf_dad_work+0x10b/0xab0 [ 5420.221027][ T253] process_one_work+0x84d/0x18a0 [ 5420.221027][ T253] worker_thread+0x587/0xd30 [ 5420.221027][ T253] kthread+0x28a/0x350 [ 5420.221027][ T253] ret_from_fork+0x31/0x70 [ 5420.221027][ T253] ret_from_fork_asm+0x1a/0x30 [ 5420.221027][ T253] [ 5420.223159][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5420.223159][ T253] netdev_get_by_index+0x5e/0x80 [ 5420.223159][ T253] fib6_nh_init+0x3d8/0x1580 [ 5420.223159][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5420.223159][ T253] ip6_route_add+0x1c/0x140 [ 5420.223159][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5420.223159][ T253] inet6_addr_add+0x4f8/0xa40 [ 5420.223159][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5420.223159][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5420.223159][ T253] netlink_rcv_skb+0x130/0x360 [ 5420.223159][ T253] netlink_unicast+0x449/0x710 [ 5420.223159][ T253] netlink_sendmsg+0x723/0xbe0 [ 5420.223159][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5420.223159][ T253] ___sys_sendmsg+0xee/0x170 [ 5420.223159][ T253] __sys_sendmsg+0xcd/0x170 [ 5420.223159][ T253] do_syscall_64+0xc6/0x1e0 [ 5420.223159][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5420.223159][ T253] [ 5420.225395][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5420.225395][ T253] netdev_get_by_index+0x5e/0x80 [ 5420.225395][ T253] fib6_nh_init+0x3d8/0x1580 [ 5420.225395][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5420.225395][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5420.225395][ T253] ipv6_add_addr+0x411/0x2000 [ 5420.225395][ T253] inet6_addr_add+0x30e/0xa40 [ 5420.225395][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5420.225395][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5420.225395][ T253] netlink_rcv_skb+0x130/0x360 [ 5420.225395][ T253] netlink_unicast+0x449/0x710 [ 5420.225395][ T253] netlink_sendmsg+0x723/0xbe0 [ 5420.225395][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5420.225395][ T253] ___sys_sendmsg+0xee/0x170 [ 5420.225395][ T253] __sys_sendmsg+0xcd/0x170 [ 5420.225395][ T253] do_syscall_64+0xc6/0x1e0 [ 5420.225395][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5420.225395][ T253] [ 5420.227625][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5420.227625][ T253] netdev_get_by_index+0x5e/0x80 [ 5420.227625][ T253] fib6_nh_init+0x3d8/0x1580 [ 5420.227625][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5420.227625][ T253] ip6_route_add+0x1c/0x140 [ 5420.227625][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5420.227625][ T253] addrconf_add_dev+0xe2/0x170 [ 5420.227625][ T253] inet6_addr_add+0x12f/0xa40 [ 5420.227625][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5420.227625][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5420.227625][ T253] netlink_rcv_skb+0x130/0x360 [ 5420.227625][ T253] netlink_unicast+0x449/0x710 [ 5420.227625][ T253] netlink_sendmsg+0x723/0xbe0 [ 5420.227625][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5420.227625][ T253] ___sys_sendmsg+0xee/0x170 [ 5420.227625][ T253] __sys_sendmsg+0xcd/0x170 [ 5420.227625][ T253] do_syscall_64+0xc6/0x1e0 [ 5420.227625][ T253] [ 5420.229809][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5420.229809][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5420.229809][ T253] ipv6_find_idev+0x102/0x170 [ 5420.229809][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5420.229809][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5420.229809][ T253] netlink_rcv_skb+0x130/0x360 [ 5420.229809][ T253] netlink_unicast+0x449/0x710 [ 5420.229809][ T253] netlink_sendmsg+0x723/0xbe0 [ 5420.229809][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5420.229809][ T253] ___sys_sendmsg+0xee/0x170 [ 5420.229809][ T253] __sys_sendmsg+0xcd/0x170 [ 5420.229809][ T253] do_syscall_64+0xc6/0x1e0 [ 5420.229809][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5420.229809][ T253] [ 5420.231525][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5420.231525][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5420.231525][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5420.231525][ T253] ipv6_find_idev+0x102/0x170 [ 5420.231525][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5420.231525][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5420.231525][ T253] netlink_rcv_skb+0x130/0x360 [ 5420.231525][ T253] netlink_unicast+0x449/0x710 [ 5420.231525][ T253] netlink_sendmsg+0x723/0xbe0 [ 5420.231525][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5420.231525][ T253] ___sys_sendmsg+0xee/0x170 [ 5420.231525][ T253] __sys_sendmsg+0xcd/0x170 [ 5420.231525][ T253] do_syscall_64+0xc6/0x1e0 [ 5420.231525][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5420.231525][ T253] [ 5430.474318][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5430.474741][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5430.474741][ T253] dst_init+0x84/0x4a0 [ 5430.474741][ T253] dst_alloc+0x97/0x150 [ 5430.474741][ T253] ip6_dst_alloc+0x23/0x90 [ 5430.474741][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5430.474741][ T253] ip6_pol_route+0x56f/0x840 [ 5430.474741][ T253] fib6_rule_lookup+0x334/0x630 [ 5430.474741][ T253] ip6_route_output_flags+0x259/0x480 [ 5430.474741][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5430.474741][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5430.474741][ T253] netlink_rcv_skb+0x130/0x360 [ 5430.474741][ T253] netlink_unicast+0x449/0x710 [ 5430.474741][ T253] netlink_sendmsg+0x723/0xbe0 [ 5430.474741][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5430.474741][ T253] ___sys_sendmsg+0xee/0x170 [ 5430.474741][ T253] __sys_sendmsg+0xcd/0x170 [ 5430.474741][ T253] do_syscall_64+0xc6/0x1e0 [ 5430.474741][ T253] [ 5430.477012][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5430.477012][ T253] netdev_get_by_index+0x5e/0x80 [ 5430.477012][ T253] fib6_nh_init+0x3d8/0x1580 [ 5430.477012][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5430.477012][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5430.477012][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5430.477012][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5430.477012][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5430.477012][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5430.477012][ T253] addrconf_dad_begin+0x310/0x670 [ 5430.477012][ T253] addrconf_dad_work+0x10b/0xab0 [ 5430.477012][ T253] process_one_work+0x84d/0x18a0 [ 5430.477012][ T253] worker_thread+0x587/0xd30 [ 5430.477012][ T253] kthread+0x28a/0x350 [ 5430.477012][ T253] ret_from_fork+0x31/0x70 [ 5430.477012][ T253] ret_from_fork_asm+0x1a/0x30 [ 5430.477012][ T253] [ 5430.479162][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5430.479162][ T253] netdev_get_by_index+0x5e/0x80 [ 5430.479162][ T253] fib6_nh_init+0x3d8/0x1580 [ 5430.479162][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5430.479162][ T253] ip6_route_add+0x1c/0x140 [ 5430.479162][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5430.479162][ T253] inet6_addr_add+0x4f8/0xa40 [ 5430.479162][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5430.479162][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5430.479162][ T253] netlink_rcv_skb+0x130/0x360 [ 5430.479162][ T253] netlink_unicast+0x449/0x710 [ 5430.479162][ T253] netlink_sendmsg+0x723/0xbe0 [ 5430.479162][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5430.479162][ T253] ___sys_sendmsg+0xee/0x170 [ 5430.479162][ T253] __sys_sendmsg+0xcd/0x170 [ 5430.479162][ T253] do_syscall_64+0xc6/0x1e0 [ 5430.479162][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5430.479162][ T253] [ 5430.481544][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5430.481544][ T253] netdev_get_by_index+0x5e/0x80 [ 5430.481544][ T253] fib6_nh_init+0x3d8/0x1580 [ 5430.481544][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5430.481544][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5430.481544][ T253] ipv6_add_addr+0x411/0x2000 [ 5430.481544][ T253] inet6_addr_add+0x30e/0xa40 [ 5430.481544][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5430.481544][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5430.481544][ T253] netlink_rcv_skb+0x130/0x360 [ 5430.481544][ T253] netlink_unicast+0x449/0x710 [ 5430.481544][ T253] netlink_sendmsg+0x723/0xbe0 [ 5430.481544][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5430.481544][ T253] ___sys_sendmsg+0xee/0x170 [ 5430.481544][ T253] __sys_sendmsg+0xcd/0x170 [ 5430.481544][ T253] do_syscall_64+0xc6/0x1e0 [ 5430.481544][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5430.481544][ T253] [ 5430.483945][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5430.483945][ T253] netdev_get_by_index+0x5e/0x80 [ 5430.483945][ T253] fib6_nh_init+0x3d8/0x1580 [ 5430.483945][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5430.483945][ T253] ip6_route_add+0x1c/0x140 [ 5430.483945][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5430.483945][ T253] addrconf_add_dev+0xe2/0x170 [ 5430.483945][ T253] inet6_addr_add+0x12f/0xa40 [ 5430.483945][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5430.483945][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5430.483945][ T253] netlink_rcv_skb+0x130/0x360 [ 5430.483945][ T253] netlink_unicast+0x449/0x710 [ 5430.483945][ T253] netlink_sendmsg+0x723/0xbe0 [ 5430.483945][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5430.483945][ T253] ___sys_sendmsg+0xee/0x170 [ 5430.483945][ T253] __sys_sendmsg+0xcd/0x170 [ 5430.483945][ T253] do_syscall_64+0xc6/0x1e0 [ 5430.483945][ T253] [ 5430.486150][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5430.486150][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5430.486150][ T253] ipv6_find_idev+0x102/0x170 [ 5430.486150][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5430.486150][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5430.486150][ T253] netlink_rcv_skb+0x130/0x360 [ 5430.486150][ T253] netlink_unicast+0x449/0x710 [ 5430.486150][ T253] netlink_sendmsg+0x723/0xbe0 [ 5430.486150][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5430.486150][ T253] ___sys_sendmsg+0xee/0x170 [ 5430.486150][ T253] __sys_sendmsg+0xcd/0x170 [ 5430.486150][ T253] do_syscall_64+0xc6/0x1e0 [ 5430.486150][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5430.486150][ T253] [ 5430.487946][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5430.487946][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5430.487946][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5430.487946][ T253] ipv6_find_idev+0x102/0x170 [ 5430.487946][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5430.487946][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5430.487946][ T253] netlink_rcv_skb+0x130/0x360 [ 5430.487946][ T253] netlink_unicast+0x449/0x710 [ 5430.487946][ T253] netlink_sendmsg+0x723/0xbe0 [ 5430.487946][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5430.487946][ T253] ___sys_sendmsg+0xee/0x170 [ 5430.487946][ T253] __sys_sendmsg+0xcd/0x170 [ 5430.487946][ T253] do_syscall_64+0xc6/0x1e0 [ 5430.487946][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5430.487946][ T253] [ 5440.530309][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5440.530776][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5440.530776][ T253] dst_init+0x84/0x4a0 [ 5440.530776][ T253] dst_alloc+0x97/0x150 [ 5440.530776][ T253] ip6_dst_alloc+0x23/0x90 [ 5440.530776][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5440.530776][ T253] ip6_pol_route+0x56f/0x840 [ 5440.530776][ T253] fib6_rule_lookup+0x334/0x630 [ 5440.530776][ T253] ip6_route_output_flags+0x259/0x480 [ 5440.530776][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5440.530776][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5440.530776][ T253] netlink_rcv_skb+0x130/0x360 [ 5440.530776][ T253] netlink_unicast+0x449/0x710 [ 5440.530776][ T253] netlink_sendmsg+0x723/0xbe0 [ 5440.530776][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5440.530776][ T253] ___sys_sendmsg+0xee/0x170 [ 5440.530776][ T253] __sys_sendmsg+0xcd/0x170 [ 5440.530776][ T253] do_syscall_64+0xc6/0x1e0 [ 5440.530776][ T253] [ 5440.532976][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5440.532976][ T253] netdev_get_by_index+0x5e/0x80 [ 5440.532976][ T253] fib6_nh_init+0x3d8/0x1580 [ 5440.532976][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5440.532976][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5440.532976][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5440.532976][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5440.532976][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5440.532976][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5440.532976][ T253] addrconf_dad_begin+0x310/0x670 [ 5440.532976][ T253] addrconf_dad_work+0x10b/0xab0 [ 5440.532976][ T253] process_one_work+0x84d/0x18a0 [ 5440.532976][ T253] worker_thread+0x587/0xd30 [ 5440.532976][ T253] kthread+0x28a/0x350 [ 5440.532976][ T253] ret_from_fork+0x31/0x70 [ 5440.532976][ T253] ret_from_fork_asm+0x1a/0x30 [ 5440.532976][ T253] [ 5440.535128][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5440.535128][ T253] netdev_get_by_index+0x5e/0x80 [ 5440.535128][ T253] fib6_nh_init+0x3d8/0x1580 [ 5440.535128][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5440.535128][ T253] ip6_route_add+0x1c/0x140 [ 5440.535128][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5440.535128][ T253] inet6_addr_add+0x4f8/0xa40 [ 5440.535128][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5440.535128][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5440.535128][ T253] netlink_rcv_skb+0x130/0x360 [ 5440.535128][ T253] netlink_unicast+0x449/0x710 [ 5440.535128][ T253] netlink_sendmsg+0x723/0xbe0 [ 5440.535128][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5440.535128][ T253] ___sys_sendmsg+0xee/0x170 [ 5440.535128][ T253] __sys_sendmsg+0xcd/0x170 [ 5440.535128][ T253] do_syscall_64+0xc6/0x1e0 [ 5440.535128][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5440.535128][ T253] [ 5440.537369][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5440.537369][ T253] netdev_get_by_index+0x5e/0x80 [ 5440.537369][ T253] fib6_nh_init+0x3d8/0x1580 [ 5440.537369][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5440.537369][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5440.537369][ T253] ipv6_add_addr+0x411/0x2000 [ 5440.537369][ T253] inet6_addr_add+0x30e/0xa40 [ 5440.537369][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5440.537369][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5440.537369][ T253] netlink_rcv_skb+0x130/0x360 [ 5440.537369][ T253] netlink_unicast+0x449/0x710 [ 5440.537369][ T253] netlink_sendmsg+0x723/0xbe0 [ 5440.537369][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5440.537369][ T253] ___sys_sendmsg+0xee/0x170 [ 5440.537369][ T253] __sys_sendmsg+0xcd/0x170 [ 5440.537369][ T253] do_syscall_64+0xc6/0x1e0 [ 5440.537369][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5440.537369][ T253] [ 5440.539599][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5440.539599][ T253] netdev_get_by_index+0x5e/0x80 [ 5440.539599][ T253] fib6_nh_init+0x3d8/0x1580 [ 5440.539599][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5440.539599][ T253] ip6_route_add+0x1c/0x140 [ 5440.539599][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5440.539599][ T253] addrconf_add_dev+0xe2/0x170 [ 5440.539599][ T253] inet6_addr_add+0x12f/0xa40 [ 5440.539599][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5440.539599][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5440.539599][ T253] netlink_rcv_skb+0x130/0x360 [ 5440.539599][ T253] netlink_unicast+0x449/0x710 [ 5440.539599][ T253] netlink_sendmsg+0x723/0xbe0 [ 5440.539599][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5440.539599][ T253] ___sys_sendmsg+0xee/0x170 [ 5440.539599][ T253] __sys_sendmsg+0xcd/0x170 [ 5440.539599][ T253] do_syscall_64+0xc6/0x1e0 [ 5440.539599][ T253] [ 5440.541796][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5440.541796][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5440.541796][ T253] ipv6_find_idev+0x102/0x170 [ 5440.541796][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5440.541796][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5440.541796][ T253] netlink_rcv_skb+0x130/0x360 [ 5440.541796][ T253] netlink_unicast+0x449/0x710 [ 5440.541796][ T253] netlink_sendmsg+0x723/0xbe0 [ 5440.541796][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5440.541796][ T253] ___sys_sendmsg+0xee/0x170 [ 5440.541796][ T253] __sys_sendmsg+0xcd/0x170 [ 5440.541796][ T253] do_syscall_64+0xc6/0x1e0 [ 5440.541796][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5440.541796][ T253] [ 5440.543517][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5440.543517][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5440.543517][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5440.543517][ T253] ipv6_find_idev+0x102/0x170 [ 5440.543517][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5440.543517][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5440.543517][ T253] netlink_rcv_skb+0x130/0x360 [ 5440.543517][ T253] netlink_unicast+0x449/0x710 [ 5440.543517][ T253] netlink_sendmsg+0x723/0xbe0 [ 5440.543517][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5440.543517][ T253] ___sys_sendmsg+0xee/0x170 [ 5440.543517][ T253] __sys_sendmsg+0xcd/0x170 [ 5440.543517][ T253] do_syscall_64+0xc6/0x1e0 [ 5440.543517][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5440.543517][ T253] [ 5450.586319][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5450.586788][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5450.586788][ T253] dst_init+0x84/0x4a0 [ 5450.586788][ T253] dst_alloc+0x97/0x150 [ 5450.586788][ T253] ip6_dst_alloc+0x23/0x90 [ 5450.586788][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5450.586788][ T253] ip6_pol_route+0x56f/0x840 [ 5450.586788][ T253] fib6_rule_lookup+0x334/0x630 [ 5450.586788][ T253] ip6_route_output_flags+0x259/0x480 [ 5450.586788][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5450.586788][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5450.586788][ T253] netlink_rcv_skb+0x130/0x360 [ 5450.586788][ T253] netlink_unicast+0x449/0x710 [ 5450.586788][ T253] netlink_sendmsg+0x723/0xbe0 [ 5450.586788][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5450.586788][ T253] ___sys_sendmsg+0xee/0x170 [ 5450.586788][ T253] __sys_sendmsg+0xcd/0x170 [ 5450.586788][ T253] do_syscall_64+0xc6/0x1e0 [ 5450.586788][ T253] [ 5450.588993][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5450.588993][ T253] netdev_get_by_index+0x5e/0x80 [ 5450.588993][ T253] fib6_nh_init+0x3d8/0x1580 [ 5450.588993][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5450.588993][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5450.588993][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5450.588993][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5450.588993][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5450.588993][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5450.588993][ T253] addrconf_dad_begin+0x310/0x670 [ 5450.588993][ T253] addrconf_dad_work+0x10b/0xab0 [ 5450.588993][ T253] process_one_work+0x84d/0x18a0 [ 5450.588993][ T253] worker_thread+0x587/0xd30 [ 5450.588993][ T253] kthread+0x28a/0x350 [ 5450.588993][ T253] ret_from_fork+0x31/0x70 [ 5450.588993][ T253] ret_from_fork_asm+0x1a/0x30 [ 5450.588993][ T253] [ 5450.591140][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5450.591140][ T253] netdev_get_by_index+0x5e/0x80 [ 5450.591140][ T253] fib6_nh_init+0x3d8/0x1580 [ 5450.591140][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5450.591140][ T253] ip6_route_add+0x1c/0x140 [ 5450.591140][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5450.591140][ T253] inet6_addr_add+0x4f8/0xa40 [ 5450.591140][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5450.591140][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5450.591140][ T253] netlink_rcv_skb+0x130/0x360 [ 5450.591140][ T253] netlink_unicast+0x449/0x710 [ 5450.591140][ T253] netlink_sendmsg+0x723/0xbe0 [ 5450.591140][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5450.591140][ T253] ___sys_sendmsg+0xee/0x170 [ 5450.591140][ T253] __sys_sendmsg+0xcd/0x170 [ 5450.591140][ T253] do_syscall_64+0xc6/0x1e0 [ 5450.591140][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5450.591140][ T253] [ 5450.593381][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5450.593381][ T253] netdev_get_by_index+0x5e/0x80 [ 5450.593381][ T253] fib6_nh_init+0x3d8/0x1580 [ 5450.593381][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5450.593381][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5450.593381][ T253] ipv6_add_addr+0x411/0x2000 [ 5450.593381][ T253] inet6_addr_add+0x30e/0xa40 [ 5450.593381][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5450.593381][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5450.593381][ T253] netlink_rcv_skb+0x130/0x360 [ 5450.593381][ T253] netlink_unicast+0x449/0x710 [ 5450.593381][ T253] netlink_sendmsg+0x723/0xbe0 [ 5450.593381][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5450.593381][ T253] ___sys_sendmsg+0xee/0x170 [ 5450.593381][ T253] __sys_sendmsg+0xcd/0x170 [ 5450.593381][ T253] do_syscall_64+0xc6/0x1e0 [ 5450.593381][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5450.593381][ T253] [ 5450.595625][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5450.595625][ T253] netdev_get_by_index+0x5e/0x80 [ 5450.595625][ T253] fib6_nh_init+0x3d8/0x1580 [ 5450.595625][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5450.595625][ T253] ip6_route_add+0x1c/0x140 [ 5450.595625][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5450.595625][ T253] addrconf_add_dev+0xe2/0x170 [ 5450.595625][ T253] inet6_addr_add+0x12f/0xa40 [ 5450.595625][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5450.595625][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5450.595625][ T253] netlink_rcv_skb+0x130/0x360 [ 5450.595625][ T253] netlink_unicast+0x449/0x710 [ 5450.595625][ T253] netlink_sendmsg+0x723/0xbe0 [ 5450.595625][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5450.595625][ T253] ___sys_sendmsg+0xee/0x170 [ 5450.595625][ T253] __sys_sendmsg+0xcd/0x170 [ 5450.595625][ T253] do_syscall_64+0xc6/0x1e0 [ 5450.595625][ T253] [ 5450.597818][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5450.597818][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5450.597818][ T253] ipv6_find_idev+0x102/0x170 [ 5450.597818][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5450.597818][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5450.597818][ T253] netlink_rcv_skb+0x130/0x360 [ 5450.597818][ T253] netlink_unicast+0x449/0x710 [ 5450.597818][ T253] netlink_sendmsg+0x723/0xbe0 [ 5450.597818][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5450.597818][ T253] ___sys_sendmsg+0xee/0x170 [ 5450.597818][ T253] __sys_sendmsg+0xcd/0x170 [ 5450.597818][ T253] do_syscall_64+0xc6/0x1e0 [ 5450.597818][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5450.597818][ T253] [ 5450.599537][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5450.599537][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5450.599537][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5450.599537][ T253] ipv6_find_idev+0x102/0x170 [ 5450.599537][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5450.599537][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5450.599537][ T253] netlink_rcv_skb+0x130/0x360 [ 5450.599537][ T253] netlink_unicast+0x449/0x710 [ 5450.599537][ T253] netlink_sendmsg+0x723/0xbe0 [ 5450.599537][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5450.599537][ T253] ___sys_sendmsg+0xee/0x170 [ 5450.599537][ T253] __sys_sendmsg+0xcd/0x170 [ 5450.599537][ T253] do_syscall_64+0xc6/0x1e0 [ 5450.599537][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5450.599537][ T253] [ 5460.842303][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5460.842779][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5460.842779][ T253] dst_init+0x84/0x4a0 [ 5460.842779][ T253] dst_alloc+0x97/0x150 [ 5460.842779][ T253] ip6_dst_alloc+0x23/0x90 [ 5460.842779][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5460.842779][ T253] ip6_pol_route+0x56f/0x840 [ 5460.842779][ T253] fib6_rule_lookup+0x334/0x630 [ 5460.842779][ T253] ip6_route_output_flags+0x259/0x480 [ 5460.842779][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5460.842779][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5460.842779][ T253] netlink_rcv_skb+0x130/0x360 [ 5460.842779][ T253] netlink_unicast+0x449/0x710 [ 5460.842779][ T253] netlink_sendmsg+0x723/0xbe0 [ 5460.842779][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5460.842779][ T253] ___sys_sendmsg+0xee/0x170 [ 5460.842779][ T253] __sys_sendmsg+0xcd/0x170 [ 5460.842779][ T253] do_syscall_64+0xc6/0x1e0 [ 5460.842779][ T253] [ 5460.844980][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5460.844980][ T253] netdev_get_by_index+0x5e/0x80 [ 5460.844980][ T253] fib6_nh_init+0x3d8/0x1580 [ 5460.844980][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5460.844980][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5460.844980][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5460.844980][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5460.844980][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5460.844980][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5460.844980][ T253] addrconf_dad_begin+0x310/0x670 [ 5460.844980][ T253] addrconf_dad_work+0x10b/0xab0 [ 5460.844980][ T253] process_one_work+0x84d/0x18a0 [ 5460.844980][ T253] worker_thread+0x587/0xd30 [ 5460.844980][ T253] kthread+0x28a/0x350 [ 5460.844980][ T253] ret_from_fork+0x31/0x70 [ 5460.844980][ T253] ret_from_fork_asm+0x1a/0x30 [ 5460.844980][ T253] [ 5460.847129][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5460.847129][ T253] netdev_get_by_index+0x5e/0x80 [ 5460.847129][ T253] fib6_nh_init+0x3d8/0x1580 [ 5460.847129][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5460.847129][ T253] ip6_route_add+0x1c/0x140 [ 5460.847129][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5460.847129][ T253] inet6_addr_add+0x4f8/0xa40 [ 5460.847129][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5460.847129][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5460.847129][ T253] netlink_rcv_skb+0x130/0x360 [ 5460.847129][ T253] netlink_unicast+0x449/0x710 [ 5460.847129][ T253] netlink_sendmsg+0x723/0xbe0 [ 5460.847129][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5460.847129][ T253] ___sys_sendmsg+0xee/0x170 [ 5460.847129][ T253] __sys_sendmsg+0xcd/0x170 [ 5460.847129][ T253] do_syscall_64+0xc6/0x1e0 [ 5460.847129][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5460.847129][ T253] [ 5460.849358][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5460.849358][ T253] netdev_get_by_index+0x5e/0x80 [ 5460.849358][ T253] fib6_nh_init+0x3d8/0x1580 [ 5460.849358][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5460.849358][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5460.849358][ T253] ipv6_add_addr+0x411/0x2000 [ 5460.849358][ T253] inet6_addr_add+0x30e/0xa40 [ 5460.849358][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5460.849358][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5460.849358][ T253] netlink_rcv_skb+0x130/0x360 [ 5460.849358][ T253] netlink_unicast+0x449/0x710 [ 5460.849358][ T253] netlink_sendmsg+0x723/0xbe0 [ 5460.849358][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5460.849358][ T253] ___sys_sendmsg+0xee/0x170 [ 5460.849358][ T253] __sys_sendmsg+0xcd/0x170 [ 5460.849358][ T253] do_syscall_64+0xc6/0x1e0 [ 5460.849358][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5460.849358][ T253] [ 5460.851588][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5460.851588][ T253] netdev_get_by_index+0x5e/0x80 [ 5460.851588][ T253] fib6_nh_init+0x3d8/0x1580 [ 5460.851588][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5460.851588][ T253] ip6_route_add+0x1c/0x140 [ 5460.851588][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5460.851588][ T253] addrconf_add_dev+0xe2/0x170 [ 5460.851588][ T253] inet6_addr_add+0x12f/0xa40 [ 5460.851588][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5460.851588][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5460.851588][ T253] netlink_rcv_skb+0x130/0x360 [ 5460.851588][ T253] netlink_unicast+0x449/0x710 [ 5460.851588][ T253] netlink_sendmsg+0x723/0xbe0 [ 5460.851588][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5460.851588][ T253] ___sys_sendmsg+0xee/0x170 [ 5460.851588][ T253] __sys_sendmsg+0xcd/0x170 [ 5460.851588][ T253] do_syscall_64+0xc6/0x1e0 [ 5460.851588][ T253] [ 5460.853793][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5460.853793][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5460.853793][ T253] ipv6_find_idev+0x102/0x170 [ 5460.853793][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5460.853793][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5460.853793][ T253] netlink_rcv_skb+0x130/0x360 [ 5460.853793][ T253] netlink_unicast+0x449/0x710 [ 5460.853793][ T253] netlink_sendmsg+0x723/0xbe0 [ 5460.853793][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5460.853793][ T253] ___sys_sendmsg+0xee/0x170 [ 5460.853793][ T253] __sys_sendmsg+0xcd/0x170 [ 5460.853793][ T253] do_syscall_64+0xc6/0x1e0 [ 5460.853793][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5460.853793][ T253] [ 5460.855529][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5460.855529][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5460.855529][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5460.855529][ T253] ipv6_find_idev+0x102/0x170 [ 5460.855529][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5460.855529][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5460.855529][ T253] netlink_rcv_skb+0x130/0x360 [ 5460.855529][ T253] netlink_unicast+0x449/0x710 [ 5460.855529][ T253] netlink_sendmsg+0x723/0xbe0 [ 5460.855529][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5460.855529][ T253] ___sys_sendmsg+0xee/0x170 [ 5460.855529][ T253] __sys_sendmsg+0xcd/0x170 [ 5460.855529][ T253] do_syscall_64+0xc6/0x1e0 [ 5460.855529][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5460.855529][ T253] [ 5470.898300][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5470.898774][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5470.898774][ T253] dst_init+0x84/0x4a0 [ 5470.898774][ T253] dst_alloc+0x97/0x150 [ 5470.898774][ T253] ip6_dst_alloc+0x23/0x90 [ 5470.898774][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5470.898774][ T253] ip6_pol_route+0x56f/0x840 [ 5470.898774][ T253] fib6_rule_lookup+0x334/0x630 [ 5470.898774][ T253] ip6_route_output_flags+0x259/0x480 [ 5470.898774][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5470.898774][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5470.898774][ T253] netlink_rcv_skb+0x130/0x360 [ 5470.898774][ T253] netlink_unicast+0x449/0x710 [ 5470.898774][ T253] netlink_sendmsg+0x723/0xbe0 [ 5470.898774][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5470.898774][ T253] ___sys_sendmsg+0xee/0x170 [ 5470.898774][ T253] __sys_sendmsg+0xcd/0x170 [ 5470.898774][ T253] do_syscall_64+0xc6/0x1e0 [ 5470.898774][ T253] [ 5470.900972][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5470.900972][ T253] netdev_get_by_index+0x5e/0x80 [ 5470.900972][ T253] fib6_nh_init+0x3d8/0x1580 [ 5470.900972][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5470.900972][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5470.900972][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5470.900972][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5470.900972][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5470.900972][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5470.900972][ T253] addrconf_dad_begin+0x310/0x670 [ 5470.900972][ T253] addrconf_dad_work+0x10b/0xab0 [ 5470.900972][ T253] process_one_work+0x84d/0x18a0 [ 5470.900972][ T253] worker_thread+0x587/0xd30 [ 5470.900972][ T253] kthread+0x28a/0x350 [ 5470.900972][ T253] ret_from_fork+0x31/0x70 [ 5470.900972][ T253] ret_from_fork_asm+0x1a/0x30 [ 5470.900972][ T253] [ 5470.903193][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5470.903193][ T253] netdev_get_by_index+0x5e/0x80 [ 5470.903193][ T253] fib6_nh_init+0x3d8/0x1580 [ 5470.903193][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5470.903193][ T253] ip6_route_add+0x1c/0x140 [ 5470.903193][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5470.903193][ T253] inet6_addr_add+0x4f8/0xa40 [ 5470.903193][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5470.903193][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5470.903193][ T253] netlink_rcv_skb+0x130/0x360 [ 5470.903193][ T253] netlink_unicast+0x449/0x710 [ 5470.903193][ T253] netlink_sendmsg+0x723/0xbe0 [ 5470.903193][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5470.903193][ T253] ___sys_sendmsg+0xee/0x170 [ 5470.903193][ T253] __sys_sendmsg+0xcd/0x170 [ 5470.903193][ T253] do_syscall_64+0xc6/0x1e0 [ 5470.903193][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5470.903193][ T253] [ 5470.906125][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5470.906125][ T253] netdev_get_by_index+0x5e/0x80 [ 5470.906125][ T253] fib6_nh_init+0x3d8/0x1580 [ 5470.906125][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5470.906125][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5470.906125][ T253] ipv6_add_addr+0x411/0x2000 [ 5470.906125][ T253] inet6_addr_add+0x30e/0xa40 [ 5470.906125][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5470.906125][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5470.906125][ T253] netlink_rcv_skb+0x130/0x360 [ 5470.906125][ T253] netlink_unicast+0x449/0x710 [ 5470.906125][ T253] netlink_sendmsg+0x723/0xbe0 [ 5470.906125][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5470.906125][ T253] ___sys_sendmsg+0xee/0x170 [ 5470.906125][ T253] __sys_sendmsg+0xcd/0x170 [ 5470.906125][ T253] do_syscall_64+0xc6/0x1e0 [ 5470.906125][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5470.906125][ T253] [ 5470.908493][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5470.908493][ T253] netdev_get_by_index+0x5e/0x80 [ 5470.908493][ T253] fib6_nh_init+0x3d8/0x1580 [ 5470.908493][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5470.908493][ T253] ip6_route_add+0x1c/0x140 [ 5470.908493][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5470.908493][ T253] addrconf_add_dev+0xe2/0x170 [ 5470.908493][ T253] inet6_addr_add+0x12f/0xa40 [ 5470.908493][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5470.908493][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5470.908493][ T253] netlink_rcv_skb+0x130/0x360 [ 5470.908493][ T253] netlink_unicast+0x449/0x710 [ 5470.908493][ T253] netlink_sendmsg+0x723/0xbe0 [ 5470.908493][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5470.908493][ T253] ___sys_sendmsg+0xee/0x170 [ 5470.908493][ T253] __sys_sendmsg+0xcd/0x170 [ 5470.908493][ T253] do_syscall_64+0xc6/0x1e0 [ 5470.908493][ T253] [ 5470.910823][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5470.910823][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5470.910823][ T253] ipv6_find_idev+0x102/0x170 [ 5470.910823][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5470.910823][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5470.910823][ T253] netlink_rcv_skb+0x130/0x360 [ 5470.910823][ T253] netlink_unicast+0x449/0x710 [ 5470.910823][ T253] netlink_sendmsg+0x723/0xbe0 [ 5470.910823][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5470.910823][ T253] ___sys_sendmsg+0xee/0x170 [ 5470.910823][ T253] __sys_sendmsg+0xcd/0x170 [ 5470.910823][ T253] do_syscall_64+0xc6/0x1e0 [ 5470.910823][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5470.910823][ T253] [ 5470.912648][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5470.912648][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5470.912648][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5470.912648][ T253] ipv6_find_idev+0x102/0x170 [ 5470.912648][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5470.912648][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5470.912648][ T253] netlink_rcv_skb+0x130/0x360 [ 5470.912648][ T253] netlink_unicast+0x449/0x710 [ 5470.912648][ T253] netlink_sendmsg+0x723/0xbe0 [ 5470.912648][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5470.912648][ T253] ___sys_sendmsg+0xee/0x170 [ 5470.912648][ T253] __sys_sendmsg+0xcd/0x170 [ 5470.912648][ T253] do_syscall_64+0xc6/0x1e0 [ 5470.912648][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5470.912648][ T253] [ 5481.154307][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5481.154780][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5481.154780][ T253] dst_init+0x84/0x4a0 [ 5481.154780][ T253] dst_alloc+0x97/0x150 [ 5481.154780][ T253] ip6_dst_alloc+0x23/0x90 [ 5481.154780][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5481.154780][ T253] ip6_pol_route+0x56f/0x840 [ 5481.154780][ T253] fib6_rule_lookup+0x334/0x630 [ 5481.154780][ T253] ip6_route_output_flags+0x259/0x480 [ 5481.154780][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5481.154780][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5481.154780][ T253] netlink_rcv_skb+0x130/0x360 [ 5481.154780][ T253] netlink_unicast+0x449/0x710 [ 5481.154780][ T253] netlink_sendmsg+0x723/0xbe0 [ 5481.154780][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5481.154780][ T253] ___sys_sendmsg+0xee/0x170 [ 5481.154780][ T253] __sys_sendmsg+0xcd/0x170 [ 5481.154780][ T253] do_syscall_64+0xc6/0x1e0 [ 5481.154780][ T253] [ 5481.156975][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5481.156975][ T253] netdev_get_by_index+0x5e/0x80 [ 5481.156975][ T253] fib6_nh_init+0x3d8/0x1580 [ 5481.156975][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5481.156975][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5481.156975][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5481.156975][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5481.156975][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5481.156975][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5481.156975][ T253] addrconf_dad_begin+0x310/0x670 [ 5481.156975][ T253] addrconf_dad_work+0x10b/0xab0 [ 5481.156975][ T253] process_one_work+0x84d/0x18a0 [ 5481.156975][ T253] worker_thread+0x587/0xd30 [ 5481.156975][ T253] kthread+0x28a/0x350 [ 5481.156975][ T253] ret_from_fork+0x31/0x70 [ 5481.156975][ T253] ret_from_fork_asm+0x1a/0x30 [ 5481.156975][ T253] [ 5481.159114][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5481.159114][ T253] netdev_get_by_index+0x5e/0x80 [ 5481.159114][ T253] fib6_nh_init+0x3d8/0x1580 [ 5481.159114][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5481.159114][ T253] ip6_route_add+0x1c/0x140 [ 5481.159114][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5481.159114][ T253] inet6_addr_add+0x4f8/0xa40 [ 5481.159114][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5481.159114][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5481.159114][ T253] netlink_rcv_skb+0x130/0x360 [ 5481.159114][ T253] netlink_unicast+0x449/0x710 [ 5481.159114][ T253] netlink_sendmsg+0x723/0xbe0 [ 5481.159114][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5481.159114][ T253] ___sys_sendmsg+0xee/0x170 [ 5481.159114][ T253] __sys_sendmsg+0xcd/0x170 [ 5481.159114][ T253] do_syscall_64+0xc6/0x1e0 [ 5481.159114][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5481.159114][ T253] [ 5481.161347][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5481.161347][ T253] netdev_get_by_index+0x5e/0x80 [ 5481.161347][ T253] fib6_nh_init+0x3d8/0x1580 [ 5481.161347][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5481.161347][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5481.161347][ T253] ipv6_add_addr+0x411/0x2000 [ 5481.161347][ T253] inet6_addr_add+0x30e/0xa40 [ 5481.161347][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5481.161347][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5481.161347][ T253] netlink_rcv_skb+0x130/0x360 [ 5481.161347][ T253] netlink_unicast+0x449/0x710 [ 5481.161347][ T253] netlink_sendmsg+0x723/0xbe0 [ 5481.161347][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5481.161347][ T253] ___sys_sendmsg+0xee/0x170 [ 5481.161347][ T253] __sys_sendmsg+0xcd/0x170 [ 5481.161347][ T253] do_syscall_64+0xc6/0x1e0 [ 5481.161347][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5481.161347][ T253] [ 5481.163586][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5481.163586][ T253] netdev_get_by_index+0x5e/0x80 [ 5481.163586][ T253] fib6_nh_init+0x3d8/0x1580 [ 5481.163586][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5481.163586][ T253] ip6_route_add+0x1c/0x140 [ 5481.163586][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5481.163586][ T253] addrconf_add_dev+0xe2/0x170 [ 5481.163586][ T253] inet6_addr_add+0x12f/0xa40 [ 5481.163586][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5481.163586][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5481.163586][ T253] netlink_rcv_skb+0x130/0x360 [ 5481.163586][ T253] netlink_unicast+0x449/0x710 [ 5481.163586][ T253] netlink_sendmsg+0x723/0xbe0 [ 5481.163586][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5481.163586][ T253] ___sys_sendmsg+0xee/0x170 [ 5481.163586][ T253] __sys_sendmsg+0xcd/0x170 [ 5481.163586][ T253] do_syscall_64+0xc6/0x1e0 [ 5481.163586][ T253] [ 5481.166163][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5481.166163][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5481.166163][ T253] ipv6_find_idev+0x102/0x170 [ 5481.166163][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5481.166163][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5481.166163][ T253] netlink_rcv_skb+0x130/0x360 [ 5481.166163][ T253] netlink_unicast+0x449/0x710 [ 5481.166163][ T253] netlink_sendmsg+0x723/0xbe0 [ 5481.166163][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5481.166163][ T253] ___sys_sendmsg+0xee/0x170 [ 5481.166163][ T253] __sys_sendmsg+0xcd/0x170 [ 5481.166163][ T253] do_syscall_64+0xc6/0x1e0 [ 5481.166163][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5481.166163][ T253] [ 5481.167880][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5481.167880][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5481.167880][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5481.167880][ T253] ipv6_find_idev+0x102/0x170 [ 5481.167880][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5481.167880][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5481.167880][ T253] netlink_rcv_skb+0x130/0x360 [ 5481.167880][ T253] netlink_unicast+0x449/0x710 [ 5481.167880][ T253] netlink_sendmsg+0x723/0xbe0 [ 5481.167880][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5481.167880][ T253] ___sys_sendmsg+0xee/0x170 [ 5481.167880][ T253] __sys_sendmsg+0xcd/0x170 [ 5481.167880][ T253] do_syscall_64+0xc6/0x1e0 [ 5481.167880][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5481.167880][ T253] [ 5491.218321][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5491.218804][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5491.218804][ T253] dst_init+0x84/0x4a0 [ 5491.218804][ T253] dst_alloc+0x97/0x150 [ 5491.218804][ T253] ip6_dst_alloc+0x23/0x90 [ 5491.218804][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5491.218804][ T253] ip6_pol_route+0x56f/0x840 [ 5491.218804][ T253] fib6_rule_lookup+0x334/0x630 [ 5491.218804][ T253] ip6_route_output_flags+0x259/0x480 [ 5491.218804][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5491.218804][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5491.218804][ T253] netlink_rcv_skb+0x130/0x360 [ 5491.218804][ T253] netlink_unicast+0x449/0x710 [ 5491.218804][ T253] netlink_sendmsg+0x723/0xbe0 [ 5491.218804][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5491.218804][ T253] ___sys_sendmsg+0xee/0x170 [ 5491.218804][ T253] __sys_sendmsg+0xcd/0x170 [ 5491.218804][ T253] do_syscall_64+0xc6/0x1e0 [ 5491.218804][ T253] [ 5491.221007][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5491.221007][ T253] netdev_get_by_index+0x5e/0x80 [ 5491.221007][ T253] fib6_nh_init+0x3d8/0x1580 [ 5491.221007][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5491.221007][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5491.221007][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5491.221007][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5491.221007][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5491.221007][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5491.221007][ T253] addrconf_dad_begin+0x310/0x670 [ 5491.221007][ T253] addrconf_dad_work+0x10b/0xab0 [ 5491.221007][ T253] process_one_work+0x84d/0x18a0 [ 5491.221007][ T253] worker_thread+0x587/0xd30 [ 5491.221007][ T253] kthread+0x28a/0x350 [ 5491.221007][ T253] ret_from_fork+0x31/0x70 [ 5491.221007][ T253] ret_from_fork_asm+0x1a/0x30 [ 5491.221007][ T253] [ 5491.223147][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5491.223147][ T253] netdev_get_by_index+0x5e/0x80 [ 5491.223147][ T253] fib6_nh_init+0x3d8/0x1580 [ 5491.223147][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5491.223147][ T253] ip6_route_add+0x1c/0x140 [ 5491.223147][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5491.223147][ T253] inet6_addr_add+0x4f8/0xa40 [ 5491.223147][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5491.223147][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5491.223147][ T253] netlink_rcv_skb+0x130/0x360 [ 5491.223147][ T253] netlink_unicast+0x449/0x710 [ 5491.223147][ T253] netlink_sendmsg+0x723/0xbe0 [ 5491.223147][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5491.223147][ T253] ___sys_sendmsg+0xee/0x170 [ 5491.223147][ T253] __sys_sendmsg+0xcd/0x170 [ 5491.223147][ T253] do_syscall_64+0xc6/0x1e0 [ 5491.223147][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5491.223147][ T253] [ 5491.225397][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5491.225397][ T253] netdev_get_by_index+0x5e/0x80 [ 5491.225397][ T253] fib6_nh_init+0x3d8/0x1580 [ 5491.225397][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5491.225397][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5491.225397][ T253] ipv6_add_addr+0x411/0x2000 [ 5491.225397][ T253] inet6_addr_add+0x30e/0xa40 [ 5491.225397][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5491.225397][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5491.225397][ T253] netlink_rcv_skb+0x130/0x360 [ 5491.225397][ T253] netlink_unicast+0x449/0x710 [ 5491.225397][ T253] netlink_sendmsg+0x723/0xbe0 [ 5491.225397][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5491.225397][ T253] ___sys_sendmsg+0xee/0x170 [ 5491.225397][ T253] __sys_sendmsg+0xcd/0x170 [ 5491.225397][ T253] do_syscall_64+0xc6/0x1e0 [ 5491.225397][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5491.225397][ T253] [ 5491.227630][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5491.227630][ T253] netdev_get_by_index+0x5e/0x80 [ 5491.227630][ T253] fib6_nh_init+0x3d8/0x1580 [ 5491.227630][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5491.227630][ T253] ip6_route_add+0x1c/0x140 [ 5491.227630][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5491.227630][ T253] addrconf_add_dev+0xe2/0x170 [ 5491.227630][ T253] inet6_addr_add+0x12f/0xa40 [ 5491.227630][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5491.227630][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5491.227630][ T253] netlink_rcv_skb+0x130/0x360 [ 5491.227630][ T253] netlink_unicast+0x449/0x710 [ 5491.227630][ T253] netlink_sendmsg+0x723/0xbe0 [ 5491.227630][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5491.227630][ T253] ___sys_sendmsg+0xee/0x170 [ 5491.227630][ T253] __sys_sendmsg+0xcd/0x170 [ 5491.227630][ T253] do_syscall_64+0xc6/0x1e0 [ 5491.227630][ T253] [ 5491.229825][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5491.229825][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5491.229825][ T253] ipv6_find_idev+0x102/0x170 [ 5491.229825][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5491.229825][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5491.229825][ T253] netlink_rcv_skb+0x130/0x360 [ 5491.229825][ T253] netlink_unicast+0x449/0x710 [ 5491.229825][ T253] netlink_sendmsg+0x723/0xbe0 [ 5491.229825][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5491.229825][ T253] ___sys_sendmsg+0xee/0x170 [ 5491.229825][ T253] __sys_sendmsg+0xcd/0x170 [ 5491.229825][ T253] do_syscall_64+0xc6/0x1e0 [ 5491.229825][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5491.229825][ T253] [ 5491.231544][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5491.231544][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5491.231544][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5491.231544][ T253] ipv6_find_idev+0x102/0x170 [ 5491.231544][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5491.231544][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5491.231544][ T253] netlink_rcv_skb+0x130/0x360 [ 5491.231544][ T253] netlink_unicast+0x449/0x710 [ 5491.231544][ T253] netlink_sendmsg+0x723/0xbe0 [ 5491.231544][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5491.231544][ T253] ___sys_sendmsg+0xee/0x170 [ 5491.231544][ T253] __sys_sendmsg+0xcd/0x170 [ 5491.231544][ T253] do_syscall_64+0xc6/0x1e0 [ 5491.231544][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5491.231544][ T253] [ 5501.314311][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5501.314776][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5501.314776][ T253] dst_init+0x84/0x4a0 [ 5501.314776][ T253] dst_alloc+0x97/0x150 [ 5501.314776][ T253] ip6_dst_alloc+0x23/0x90 [ 5501.314776][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5501.314776][ T253] ip6_pol_route+0x56f/0x840 [ 5501.314776][ T253] fib6_rule_lookup+0x334/0x630 [ 5501.314776][ T253] ip6_route_output_flags+0x259/0x480 [ 5501.314776][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5501.314776][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5501.314776][ T253] netlink_rcv_skb+0x130/0x360 [ 5501.314776][ T253] netlink_unicast+0x449/0x710 [ 5501.314776][ T253] netlink_sendmsg+0x723/0xbe0 [ 5501.314776][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5501.314776][ T253] ___sys_sendmsg+0xee/0x170 [ 5501.314776][ T253] __sys_sendmsg+0xcd/0x170 [ 5501.314776][ T253] do_syscall_64+0xc6/0x1e0 [ 5501.314776][ T253] [ 5501.316961][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5501.316961][ T253] netdev_get_by_index+0x5e/0x80 [ 5501.316961][ T253] fib6_nh_init+0x3d8/0x1580 [ 5501.316961][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5501.316961][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5501.316961][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5501.316961][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5501.316961][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5501.316961][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5501.316961][ T253] addrconf_dad_begin+0x310/0x670 [ 5501.316961][ T253] addrconf_dad_work+0x10b/0xab0 [ 5501.316961][ T253] process_one_work+0x84d/0x18a0 [ 5501.316961][ T253] worker_thread+0x587/0xd30 [ 5501.316961][ T253] kthread+0x28a/0x350 [ 5501.316961][ T253] ret_from_fork+0x31/0x70 [ 5501.316961][ T253] ret_from_fork_asm+0x1a/0x30 [ 5501.316961][ T253] [ 5501.319099][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5501.319099][ T253] netdev_get_by_index+0x5e/0x80 [ 5501.319099][ T253] fib6_nh_init+0x3d8/0x1580 [ 5501.319099][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5501.319099][ T253] ip6_route_add+0x1c/0x140 [ 5501.319099][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5501.319099][ T253] inet6_addr_add+0x4f8/0xa40 [ 5501.319099][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5501.319099][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5501.319099][ T253] netlink_rcv_skb+0x130/0x360 [ 5501.319099][ T253] netlink_unicast+0x449/0x710 [ 5501.319099][ T253] netlink_sendmsg+0x723/0xbe0 [ 5501.319099][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5501.319099][ T253] ___sys_sendmsg+0xee/0x170 [ 5501.319099][ T253] __sys_sendmsg+0xcd/0x170 [ 5501.319099][ T253] do_syscall_64+0xc6/0x1e0 [ 5501.319099][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5501.319099][ T253] [ 5501.321345][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5501.321345][ T253] netdev_get_by_index+0x5e/0x80 [ 5501.321345][ T253] fib6_nh_init+0x3d8/0x1580 [ 5501.321345][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5501.321345][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5501.321345][ T253] ipv6_add_addr+0x411/0x2000 [ 5501.321345][ T253] inet6_addr_add+0x30e/0xa40 [ 5501.321345][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5501.321345][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5501.321345][ T253] netlink_rcv_skb+0x130/0x360 [ 5501.321345][ T253] netlink_unicast+0x449/0x710 [ 5501.321345][ T253] netlink_sendmsg+0x723/0xbe0 [ 5501.321345][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5501.321345][ T253] ___sys_sendmsg+0xee/0x170 [ 5501.321345][ T253] __sys_sendmsg+0xcd/0x170 [ 5501.321345][ T253] do_syscall_64+0xc6/0x1e0 [ 5501.321345][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5501.321345][ T253] [ 5501.323575][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5501.323575][ T253] netdev_get_by_index+0x5e/0x80 [ 5501.323575][ T253] fib6_nh_init+0x3d8/0x1580 [ 5501.323575][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5501.323575][ T253] ip6_route_add+0x1c/0x140 [ 5501.323575][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5501.323575][ T253] addrconf_add_dev+0xe2/0x170 [ 5501.323575][ T253] inet6_addr_add+0x12f/0xa40 [ 5501.323575][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5501.323575][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5501.323575][ T253] netlink_rcv_skb+0x130/0x360 [ 5501.323575][ T253] netlink_unicast+0x449/0x710 [ 5501.323575][ T253] netlink_sendmsg+0x723/0xbe0 [ 5501.323575][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5501.323575][ T253] ___sys_sendmsg+0xee/0x170 [ 5501.323575][ T253] __sys_sendmsg+0xcd/0x170 [ 5501.323575][ T253] do_syscall_64+0xc6/0x1e0 [ 5501.323575][ T253] [ 5501.325791][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5501.325791][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5501.325791][ T253] ipv6_find_idev+0x102/0x170 [ 5501.325791][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5501.325791][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5501.325791][ T253] netlink_rcv_skb+0x130/0x360 [ 5501.325791][ T253] netlink_unicast+0x449/0x710 [ 5501.325791][ T253] netlink_sendmsg+0x723/0xbe0 [ 5501.325791][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5501.325791][ T253] ___sys_sendmsg+0xee/0x170 [ 5501.325791][ T253] __sys_sendmsg+0xcd/0x170 [ 5501.325791][ T253] do_syscall_64+0xc6/0x1e0 [ 5501.325791][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5501.325791][ T253] [ 5501.327509][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5501.327509][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5501.327509][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5501.327509][ T253] ipv6_find_idev+0x102/0x170 [ 5501.327509][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5501.327509][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5501.327509][ T253] netlink_rcv_skb+0x130/0x360 [ 5501.327509][ T253] netlink_unicast+0x449/0x710 [ 5501.327509][ T253] netlink_sendmsg+0x723/0xbe0 [ 5501.327509][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5501.327509][ T253] ___sys_sendmsg+0xee/0x170 [ 5501.327509][ T253] __sys_sendmsg+0xcd/0x170 [ 5501.327509][ T253] do_syscall_64+0xc6/0x1e0 [ 5501.327509][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5501.327509][ T253] [ 5511.578310][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5511.578794][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5511.578794][ T253] dst_init+0x84/0x4a0 [ 5511.578794][ T253] dst_alloc+0x97/0x150 [ 5511.578794][ T253] ip6_dst_alloc+0x23/0x90 [ 5511.578794][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5511.578794][ T253] ip6_pol_route+0x56f/0x840 [ 5511.578794][ T253] fib6_rule_lookup+0x334/0x630 [ 5511.578794][ T253] ip6_route_output_flags+0x259/0x480 [ 5511.578794][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5511.578794][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5511.578794][ T253] netlink_rcv_skb+0x130/0x360 [ 5511.578794][ T253] netlink_unicast+0x449/0x710 [ 5511.578794][ T253] netlink_sendmsg+0x723/0xbe0 [ 5511.578794][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5511.578794][ T253] ___sys_sendmsg+0xee/0x170 [ 5511.578794][ T253] __sys_sendmsg+0xcd/0x170 [ 5511.578794][ T253] do_syscall_64+0xc6/0x1e0 [ 5511.578794][ T253] [ 5511.581021][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5511.581021][ T253] netdev_get_by_index+0x5e/0x80 [ 5511.581021][ T253] fib6_nh_init+0x3d8/0x1580 [ 5511.581021][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5511.581021][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5511.581021][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5511.581021][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5511.581021][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5511.581021][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5511.581021][ T253] addrconf_dad_begin+0x310/0x670 [ 5511.581021][ T253] addrconf_dad_work+0x10b/0xab0 [ 5511.581021][ T253] process_one_work+0x84d/0x18a0 [ 5511.581021][ T253] worker_thread+0x587/0xd30 [ 5511.581021][ T253] kthread+0x28a/0x350 [ 5511.581021][ T253] ret_from_fork+0x31/0x70 [ 5511.581021][ T253] ret_from_fork_asm+0x1a/0x30 [ 5511.581021][ T253] [ 5511.583183][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5511.583183][ T253] netdev_get_by_index+0x5e/0x80 [ 5511.583183][ T253] fib6_nh_init+0x3d8/0x1580 [ 5511.583183][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5511.583183][ T253] ip6_route_add+0x1c/0x140 [ 5511.583183][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5511.583183][ T253] inet6_addr_add+0x4f8/0xa40 [ 5511.583183][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5511.583183][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5511.583183][ T253] netlink_rcv_skb+0x130/0x360 [ 5511.583183][ T253] netlink_unicast+0x449/0x710 [ 5511.583183][ T253] netlink_sendmsg+0x723/0xbe0 [ 5511.583183][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5511.583183][ T253] ___sys_sendmsg+0xee/0x170 [ 5511.583183][ T253] __sys_sendmsg+0xcd/0x170 [ 5511.583183][ T253] do_syscall_64+0xc6/0x1e0 [ 5511.583183][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5511.583183][ T253] [ 5511.585469][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5511.585469][ T253] netdev_get_by_index+0x5e/0x80 [ 5511.585469][ T253] fib6_nh_init+0x3d8/0x1580 [ 5511.585469][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5511.585469][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5511.585469][ T253] ipv6_add_addr+0x411/0x2000 [ 5511.585469][ T253] inet6_addr_add+0x30e/0xa40 [ 5511.585469][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5511.585469][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5511.585469][ T253] netlink_rcv_skb+0x130/0x360 [ 5511.585469][ T253] netlink_unicast+0x449/0x710 [ 5511.585469][ T253] netlink_sendmsg+0x723/0xbe0 [ 5511.585469][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5511.585469][ T253] ___sys_sendmsg+0xee/0x170 [ 5511.585469][ T253] __sys_sendmsg+0xcd/0x170 [ 5511.585469][ T253] do_syscall_64+0xc6/0x1e0 [ 5511.585469][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5511.585469][ T253] [ 5511.587726][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5511.587726][ T253] netdev_get_by_index+0x5e/0x80 [ 5511.587726][ T253] fib6_nh_init+0x3d8/0x1580 [ 5511.587726][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5511.587726][ T253] ip6_route_add+0x1c/0x140 [ 5511.587726][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5511.587726][ T253] addrconf_add_dev+0xe2/0x170 [ 5511.587726][ T253] inet6_addr_add+0x12f/0xa40 [ 5511.587726][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5511.587726][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5511.587726][ T253] netlink_rcv_skb+0x130/0x360 [ 5511.587726][ T253] netlink_unicast+0x449/0x710 [ 5511.587726][ T253] netlink_sendmsg+0x723/0xbe0 [ 5511.587726][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5511.587726][ T253] ___sys_sendmsg+0xee/0x170 [ 5511.587726][ T253] __sys_sendmsg+0xcd/0x170 [ 5511.587726][ T253] do_syscall_64+0xc6/0x1e0 [ 5511.587726][ T253] [ 5511.589951][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5511.589951][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5511.589951][ T253] ipv6_find_idev+0x102/0x170 [ 5511.589951][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5511.589951][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5511.589951][ T253] netlink_rcv_skb+0x130/0x360 [ 5511.589951][ T253] netlink_unicast+0x449/0x710 [ 5511.589951][ T253] netlink_sendmsg+0x723/0xbe0 [ 5511.589951][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5511.589951][ T253] ___sys_sendmsg+0xee/0x170 [ 5511.589951][ T253] __sys_sendmsg+0xcd/0x170 [ 5511.589951][ T253] do_syscall_64+0xc6/0x1e0 [ 5511.589951][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5511.589951][ T253] [ 5511.591688][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5511.591688][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5511.591688][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5511.591688][ T253] ipv6_find_idev+0x102/0x170 [ 5511.591688][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5511.591688][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5511.591688][ T253] netlink_rcv_skb+0x130/0x360 [ 5511.591688][ T253] netlink_unicast+0x449/0x710 [ 5511.591688][ T253] netlink_sendmsg+0x723/0xbe0 [ 5511.591688][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5511.591688][ T253] ___sys_sendmsg+0xee/0x170 [ 5511.591688][ T253] __sys_sendmsg+0xcd/0x170 [ 5511.591688][ T253] do_syscall_64+0xc6/0x1e0 [ 5511.591688][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5511.591688][ T253] [ 5521.842260][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5521.842761][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5521.842761][ T253] dst_init+0x84/0x4a0 [ 5521.842761][ T253] dst_alloc+0x97/0x150 [ 5521.842761][ T253] ip6_dst_alloc+0x23/0x90 [ 5521.842761][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5521.842761][ T253] ip6_pol_route+0x56f/0x840 [ 5521.842761][ T253] fib6_rule_lookup+0x334/0x630 [ 5521.842761][ T253] ip6_route_output_flags+0x259/0x480 [ 5521.842761][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5521.842761][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5521.842761][ T253] netlink_rcv_skb+0x130/0x360 [ 5521.842761][ T253] netlink_unicast+0x449/0x710 [ 5521.842761][ T253] netlink_sendmsg+0x723/0xbe0 [ 5521.842761][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5521.842761][ T253] ___sys_sendmsg+0xee/0x170 [ 5521.842761][ T253] __sys_sendmsg+0xcd/0x170 [ 5521.842761][ T253] do_syscall_64+0xc6/0x1e0 [ 5521.842761][ T253] [ 5521.845007][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5521.845007][ T253] netdev_get_by_index+0x5e/0x80 [ 5521.845007][ T253] fib6_nh_init+0x3d8/0x1580 [ 5521.845007][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5521.845007][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5521.845007][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5521.845007][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5521.845007][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5521.845007][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5521.845007][ T253] addrconf_dad_begin+0x310/0x670 [ 5521.845007][ T253] addrconf_dad_work+0x10b/0xab0 [ 5521.845007][ T253] process_one_work+0x84d/0x18a0 [ 5521.845007][ T253] worker_thread+0x587/0xd30 [ 5521.845007][ T253] kthread+0x28a/0x350 [ 5521.845007][ T253] ret_from_fork+0x31/0x70 [ 5521.845007][ T253] ret_from_fork_asm+0x1a/0x30 [ 5521.845007][ T253] [ 5521.847710][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5521.847710][ T253] netdev_get_by_index+0x5e/0x80 [ 5521.847710][ T253] fib6_nh_init+0x3d8/0x1580 [ 5521.847710][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5521.847710][ T253] ip6_route_add+0x1c/0x140 [ 5521.847710][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5521.847710][ T253] inet6_addr_add+0x4f8/0xa40 [ 5521.847710][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5521.847710][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5521.847710][ T253] netlink_rcv_skb+0x130/0x360 [ 5521.847710][ T253] netlink_unicast+0x449/0x710 [ 5521.847710][ T253] netlink_sendmsg+0x723/0xbe0 [ 5521.847710][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5521.847710][ T253] ___sys_sendmsg+0xee/0x170 [ 5521.847710][ T253] __sys_sendmsg+0xcd/0x170 [ 5521.847710][ T253] do_syscall_64+0xc6/0x1e0 [ 5521.847710][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5521.847710][ T253] [ 5521.849980][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5521.849980][ T253] netdev_get_by_index+0x5e/0x80 [ 5521.849980][ T253] fib6_nh_init+0x3d8/0x1580 [ 5521.849980][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5521.849980][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5521.849980][ T253] ipv6_add_addr+0x411/0x2000 [ 5521.849980][ T253] inet6_addr_add+0x30e/0xa40 [ 5521.849980][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5521.849980][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5521.849980][ T253] netlink_rcv_skb+0x130/0x360 [ 5521.849980][ T253] netlink_unicast+0x449/0x710 [ 5521.849980][ T253] netlink_sendmsg+0x723/0xbe0 [ 5521.849980][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5521.849980][ T253] ___sys_sendmsg+0xee/0x170 [ 5521.849980][ T253] __sys_sendmsg+0xcd/0x170 [ 5521.849980][ T253] do_syscall_64+0xc6/0x1e0 [ 5521.849980][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5521.849980][ T253] [ 5521.852256][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5521.852256][ T253] netdev_get_by_index+0x5e/0x80 [ 5521.852256][ T253] fib6_nh_init+0x3d8/0x1580 [ 5521.852256][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5521.852256][ T253] ip6_route_add+0x1c/0x140 [ 5521.852256][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5521.852256][ T253] addrconf_add_dev+0xe2/0x170 [ 5521.852256][ T253] inet6_addr_add+0x12f/0xa40 [ 5521.852256][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5521.852256][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5521.852256][ T253] netlink_rcv_skb+0x130/0x360 [ 5521.852256][ T253] netlink_unicast+0x449/0x710 [ 5521.852256][ T253] netlink_sendmsg+0x723/0xbe0 [ 5521.852256][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5521.852256][ T253] ___sys_sendmsg+0xee/0x170 [ 5521.852256][ T253] __sys_sendmsg+0xcd/0x170 [ 5521.852256][ T253] do_syscall_64+0xc6/0x1e0 [ 5521.852256][ T253] [ 5521.854504][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5521.854504][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5521.854504][ T253] ipv6_find_idev+0x102/0x170 [ 5521.854504][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5521.854504][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5521.854504][ T253] netlink_rcv_skb+0x130/0x360 [ 5521.854504][ T253] netlink_unicast+0x449/0x710 [ 5521.854504][ T253] netlink_sendmsg+0x723/0xbe0 [ 5521.854504][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5521.854504][ T253] ___sys_sendmsg+0xee/0x170 [ 5521.854504][ T253] __sys_sendmsg+0xcd/0x170 [ 5521.854504][ T253] do_syscall_64+0xc6/0x1e0 [ 5521.854504][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5521.854504][ T253] [ 5521.856268][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5521.856268][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5521.856268][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5521.856268][ T253] ipv6_find_idev+0x102/0x170 [ 5521.856268][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5521.856268][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5521.856268][ T253] netlink_rcv_skb+0x130/0x360 [ 5521.856268][ T253] netlink_unicast+0x449/0x710 [ 5521.856268][ T253] netlink_sendmsg+0x723/0xbe0 [ 5521.856268][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5521.856268][ T253] ___sys_sendmsg+0xee/0x170 [ 5521.856268][ T253] __sys_sendmsg+0xcd/0x170 [ 5521.856268][ T253] do_syscall_64+0xc6/0x1e0 [ 5521.856268][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5521.856268][ T253] [ 5532.106309][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5532.106739][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5532.106739][ T253] dst_init+0x84/0x4a0 [ 5532.106739][ T253] dst_alloc+0x97/0x150 [ 5532.106739][ T253] ip6_dst_alloc+0x23/0x90 [ 5532.106739][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5532.106739][ T253] ip6_pol_route+0x56f/0x840 [ 5532.106739][ T253] fib6_rule_lookup+0x334/0x630 [ 5532.106739][ T253] ip6_route_output_flags+0x259/0x480 [ 5532.106739][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5532.106739][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5532.106739][ T253] netlink_rcv_skb+0x130/0x360 [ 5532.106739][ T253] netlink_unicast+0x449/0x710 [ 5532.106739][ T253] netlink_sendmsg+0x723/0xbe0 [ 5532.106739][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5532.106739][ T253] ___sys_sendmsg+0xee/0x170 [ 5532.106739][ T253] __sys_sendmsg+0xcd/0x170 [ 5532.106739][ T253] do_syscall_64+0xc6/0x1e0 [ 5532.106739][ T253] [ 5532.108945][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5532.108945][ T253] netdev_get_by_index+0x5e/0x80 [ 5532.108945][ T253] fib6_nh_init+0x3d8/0x1580 [ 5532.108945][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5532.108945][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5532.108945][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5532.108945][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5532.108945][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5532.108945][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5532.108945][ T253] addrconf_dad_begin+0x310/0x670 [ 5532.108945][ T253] addrconf_dad_work+0x10b/0xab0 [ 5532.108945][ T253] process_one_work+0x84d/0x18a0 [ 5532.108945][ T253] worker_thread+0x587/0xd30 [ 5532.108945][ T253] kthread+0x28a/0x350 [ 5532.108945][ T253] ret_from_fork+0x31/0x70 [ 5532.108945][ T253] ret_from_fork_asm+0x1a/0x30 [ 5532.108945][ T253] [ 5532.111115][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5532.111115][ T253] netdev_get_by_index+0x5e/0x80 [ 5532.111115][ T253] fib6_nh_init+0x3d8/0x1580 [ 5532.111115][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5532.111115][ T253] ip6_route_add+0x1c/0x140 [ 5532.111115][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5532.111115][ T253] inet6_addr_add+0x4f8/0xa40 [ 5532.111115][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5532.111115][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5532.111115][ T253] netlink_rcv_skb+0x130/0x360 [ 5532.111115][ T253] netlink_unicast+0x449/0x710 [ 5532.111115][ T253] netlink_sendmsg+0x723/0xbe0 [ 5532.111115][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5532.111115][ T253] ___sys_sendmsg+0xee/0x170 [ 5532.111115][ T253] __sys_sendmsg+0xcd/0x170 [ 5532.111115][ T253] do_syscall_64+0xc6/0x1e0 [ 5532.111115][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5532.111115][ T253] [ 5532.113378][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5532.113378][ T253] netdev_get_by_index+0x5e/0x80 [ 5532.113378][ T253] fib6_nh_init+0x3d8/0x1580 [ 5532.113378][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5532.113378][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5532.113378][ T253] ipv6_add_addr+0x411/0x2000 [ 5532.113378][ T253] inet6_addr_add+0x30e/0xa40 [ 5532.113378][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5532.113378][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5532.113378][ T253] netlink_rcv_skb+0x130/0x360 [ 5532.113378][ T253] netlink_unicast+0x449/0x710 [ 5532.113378][ T253] netlink_sendmsg+0x723/0xbe0 [ 5532.113378][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5532.113378][ T253] ___sys_sendmsg+0xee/0x170 [ 5532.113378][ T253] __sys_sendmsg+0xcd/0x170 [ 5532.113378][ T253] do_syscall_64+0xc6/0x1e0 [ 5532.113378][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5532.113378][ T253] [ 5532.115649][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5532.115649][ T253] netdev_get_by_index+0x5e/0x80 [ 5532.115649][ T253] fib6_nh_init+0x3d8/0x1580 [ 5532.115649][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5532.115649][ T253] ip6_route_add+0x1c/0x140 [ 5532.115649][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5532.115649][ T253] addrconf_add_dev+0xe2/0x170 [ 5532.115649][ T253] inet6_addr_add+0x12f/0xa40 [ 5532.115649][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5532.115649][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5532.115649][ T253] netlink_rcv_skb+0x130/0x360 [ 5532.115649][ T253] netlink_unicast+0x449/0x710 [ 5532.115649][ T253] netlink_sendmsg+0x723/0xbe0 [ 5532.115649][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5532.115649][ T253] ___sys_sendmsg+0xee/0x170 [ 5532.115649][ T253] __sys_sendmsg+0xcd/0x170 [ 5532.115649][ T253] do_syscall_64+0xc6/0x1e0 [ 5532.115649][ T253] [ 5532.117868][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5532.117868][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5532.117868][ T253] ipv6_find_idev+0x102/0x170 [ 5532.117868][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5532.117868][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5532.117868][ T253] netlink_rcv_skb+0x130/0x360 [ 5532.117868][ T253] netlink_unicast+0x449/0x710 [ 5532.117868][ T253] netlink_sendmsg+0x723/0xbe0 [ 5532.117868][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5532.117868][ T253] ___sys_sendmsg+0xee/0x170 [ 5532.117868][ T253] __sys_sendmsg+0xcd/0x170 [ 5532.117868][ T253] do_syscall_64+0xc6/0x1e0 [ 5532.117868][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5532.117868][ T253] [ 5532.119603][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5532.119603][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5532.119603][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5532.119603][ T253] ipv6_find_idev+0x102/0x170 [ 5532.119603][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5532.119603][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5532.119603][ T253] netlink_rcv_skb+0x130/0x360 [ 5532.119603][ T253] netlink_unicast+0x449/0x710 [ 5532.119603][ T253] netlink_sendmsg+0x723/0xbe0 [ 5532.119603][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5532.119603][ T253] ___sys_sendmsg+0xee/0x170 [ 5532.119603][ T253] __sys_sendmsg+0xcd/0x170 [ 5532.119603][ T253] do_syscall_64+0xc6/0x1e0 [ 5532.119603][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5532.119603][ T253] [ 5542.146307][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5542.146777][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5542.146777][ T253] dst_init+0x84/0x4a0 [ 5542.146777][ T253] dst_alloc+0x97/0x150 [ 5542.146777][ T253] ip6_dst_alloc+0x23/0x90 [ 5542.146777][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5542.146777][ T253] ip6_pol_route+0x56f/0x840 [ 5542.146777][ T253] fib6_rule_lookup+0x334/0x630 [ 5542.146777][ T253] ip6_route_output_flags+0x259/0x480 [ 5542.146777][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5542.146777][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5542.146777][ T253] netlink_rcv_skb+0x130/0x360 [ 5542.146777][ T253] netlink_unicast+0x449/0x710 [ 5542.146777][ T253] netlink_sendmsg+0x723/0xbe0 [ 5542.146777][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5542.146777][ T253] ___sys_sendmsg+0xee/0x170 [ 5542.146777][ T253] __sys_sendmsg+0xcd/0x170 [ 5542.146777][ T253] do_syscall_64+0xc6/0x1e0 [ 5542.146777][ T253] [ 5542.148973][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5542.148973][ T253] netdev_get_by_index+0x5e/0x80 [ 5542.148973][ T253] fib6_nh_init+0x3d8/0x1580 [ 5542.148973][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5542.148973][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5542.148973][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5542.148973][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5542.148973][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5542.148973][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5542.148973][ T253] addrconf_dad_begin+0x310/0x670 [ 5542.148973][ T253] addrconf_dad_work+0x10b/0xab0 [ 5542.148973][ T253] process_one_work+0x84d/0x18a0 [ 5542.148973][ T253] worker_thread+0x587/0xd30 [ 5542.148973][ T253] kthread+0x28a/0x350 [ 5542.148973][ T253] ret_from_fork+0x31/0x70 [ 5542.148973][ T253] ret_from_fork_asm+0x1a/0x30 [ 5542.148973][ T253] [ 5542.151119][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5542.151119][ T253] netdev_get_by_index+0x5e/0x80 [ 5542.151119][ T253] fib6_nh_init+0x3d8/0x1580 [ 5542.151119][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5542.151119][ T253] ip6_route_add+0x1c/0x140 [ 5542.151119][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5542.151119][ T253] inet6_addr_add+0x4f8/0xa40 [ 5542.151119][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5542.151119][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5542.151119][ T253] netlink_rcv_skb+0x130/0x360 [ 5542.151119][ T253] netlink_unicast+0x449/0x710 [ 5542.151119][ T253] netlink_sendmsg+0x723/0xbe0 [ 5542.151119][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5542.151119][ T253] ___sys_sendmsg+0xee/0x170 [ 5542.151119][ T253] __sys_sendmsg+0xcd/0x170 [ 5542.151119][ T253] do_syscall_64+0xc6/0x1e0 [ 5542.151119][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5542.151119][ T253] [ 5542.153379][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5542.153379][ T253] netdev_get_by_index+0x5e/0x80 [ 5542.153379][ T253] fib6_nh_init+0x3d8/0x1580 [ 5542.153379][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5542.153379][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5542.153379][ T253] ipv6_add_addr+0x411/0x2000 [ 5542.153379][ T253] inet6_addr_add+0x30e/0xa40 [ 5542.153379][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5542.153379][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5542.153379][ T253] netlink_rcv_skb+0x130/0x360 [ 5542.153379][ T253] netlink_unicast+0x449/0x710 [ 5542.153379][ T253] netlink_sendmsg+0x723/0xbe0 [ 5542.153379][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5542.153379][ T253] ___sys_sendmsg+0xee/0x170 [ 5542.153379][ T253] __sys_sendmsg+0xcd/0x170 [ 5542.153379][ T253] do_syscall_64+0xc6/0x1e0 [ 5542.153379][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5542.153379][ T253] [ 5542.155624][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5542.155624][ T253] netdev_get_by_index+0x5e/0x80 [ 5542.155624][ T253] fib6_nh_init+0x3d8/0x1580 [ 5542.155624][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5542.155624][ T253] ip6_route_add+0x1c/0x140 [ 5542.155624][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5542.155624][ T253] addrconf_add_dev+0xe2/0x170 [ 5542.155624][ T253] inet6_addr_add+0x12f/0xa40 [ 5542.155624][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5542.155624][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5542.155624][ T253] netlink_rcv_skb+0x130/0x360 [ 5542.155624][ T253] netlink_unicast+0x449/0x710 [ 5542.155624][ T253] netlink_sendmsg+0x723/0xbe0 [ 5542.155624][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5542.155624][ T253] ___sys_sendmsg+0xee/0x170 [ 5542.155624][ T253] __sys_sendmsg+0xcd/0x170 [ 5542.155624][ T253] do_syscall_64+0xc6/0x1e0 [ 5542.155624][ T253] [ 5542.157829][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5542.157829][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5542.157829][ T253] ipv6_find_idev+0x102/0x170 [ 5542.157829][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5542.157829][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5542.157829][ T253] netlink_rcv_skb+0x130/0x360 [ 5542.157829][ T253] netlink_unicast+0x449/0x710 [ 5542.157829][ T253] netlink_sendmsg+0x723/0xbe0 [ 5542.157829][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5542.157829][ T253] ___sys_sendmsg+0xee/0x170 [ 5542.157829][ T253] __sys_sendmsg+0xcd/0x170 [ 5542.157829][ T253] do_syscall_64+0xc6/0x1e0 [ 5542.157829][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5542.157829][ T253] [ 5542.159556][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5542.159556][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5542.159556][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5542.159556][ T253] ipv6_find_idev+0x102/0x170 [ 5542.159556][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5542.159556][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5542.159556][ T253] netlink_rcv_skb+0x130/0x360 [ 5542.159556][ T253] netlink_unicast+0x449/0x710 [ 5542.159556][ T253] netlink_sendmsg+0x723/0xbe0 [ 5542.159556][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5542.159556][ T253] ___sys_sendmsg+0xee/0x170 [ 5542.159556][ T253] __sys_sendmsg+0xcd/0x170 [ 5542.159556][ T253] do_syscall_64+0xc6/0x1e0 [ 5542.159556][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5542.159556][ T253] [ 5552.354255][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5552.354722][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5552.354722][ T253] dst_init+0x84/0x4a0 [ 5552.354722][ T253] dst_alloc+0x97/0x150 [ 5552.354722][ T253] ip6_dst_alloc+0x23/0x90 [ 5552.354722][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5552.354722][ T253] ip6_pol_route+0x56f/0x840 [ 5552.354722][ T253] fib6_rule_lookup+0x334/0x630 [ 5552.354722][ T253] ip6_route_output_flags+0x259/0x480 [ 5552.354722][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5552.354722][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5552.354722][ T253] netlink_rcv_skb+0x130/0x360 [ 5552.354722][ T253] netlink_unicast+0x449/0x710 [ 5552.354722][ T253] netlink_sendmsg+0x723/0xbe0 [ 5552.354722][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5552.354722][ T253] ___sys_sendmsg+0xee/0x170 [ 5552.354722][ T253] __sys_sendmsg+0xcd/0x170 [ 5552.354722][ T253] do_syscall_64+0xc6/0x1e0 [ 5552.354722][ T253] [ 5552.356920][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5552.356920][ T253] netdev_get_by_index+0x5e/0x80 [ 5552.356920][ T253] fib6_nh_init+0x3d8/0x1580 [ 5552.356920][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5552.356920][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5552.356920][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5552.356920][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5552.356920][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5552.356920][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5552.356920][ T253] addrconf_dad_begin+0x310/0x670 [ 5552.356920][ T253] addrconf_dad_work+0x10b/0xab0 [ 5552.356920][ T253] process_one_work+0x84d/0x18a0 [ 5552.356920][ T253] worker_thread+0x587/0xd30 [ 5552.356920][ T253] kthread+0x28a/0x350 [ 5552.356920][ T253] ret_from_fork+0x31/0x70 [ 5552.356920][ T253] ret_from_fork_asm+0x1a/0x30 [ 5552.356920][ T253] [ 5552.359069][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5552.359069][ T253] netdev_get_by_index+0x5e/0x80 [ 5552.359069][ T253] fib6_nh_init+0x3d8/0x1580 [ 5552.359069][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5552.359069][ T253] ip6_route_add+0x1c/0x140 [ 5552.359069][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5552.359069][ T253] inet6_addr_add+0x4f8/0xa40 [ 5552.359069][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5552.359069][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5552.359069][ T253] netlink_rcv_skb+0x130/0x360 [ 5552.359069][ T253] netlink_unicast+0x449/0x710 [ 5552.359069][ T253] netlink_sendmsg+0x723/0xbe0 [ 5552.359069][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5552.359069][ T253] ___sys_sendmsg+0xee/0x170 [ 5552.359069][ T253] __sys_sendmsg+0xcd/0x170 [ 5552.359069][ T253] do_syscall_64+0xc6/0x1e0 [ 5552.359069][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5552.359069][ T253] [ 5552.361309][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5552.361309][ T253] netdev_get_by_index+0x5e/0x80 [ 5552.361309][ T253] fib6_nh_init+0x3d8/0x1580 [ 5552.361309][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5552.361309][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5552.361309][ T253] ipv6_add_addr+0x411/0x2000 [ 5552.361309][ T253] inet6_addr_add+0x30e/0xa40 [ 5552.361309][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5552.361309][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5552.361309][ T253] netlink_rcv_skb+0x130/0x360 [ 5552.361309][ T253] netlink_unicast+0x449/0x710 [ 5552.361309][ T253] netlink_sendmsg+0x723/0xbe0 [ 5552.361309][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5552.361309][ T253] ___sys_sendmsg+0xee/0x170 [ 5552.361309][ T253] __sys_sendmsg+0xcd/0x170 [ 5552.361309][ T253] do_syscall_64+0xc6/0x1e0 [ 5552.361309][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5552.361309][ T253] [ 5552.363548][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5552.363548][ T253] netdev_get_by_index+0x5e/0x80 [ 5552.363548][ T253] fib6_nh_init+0x3d8/0x1580 [ 5552.363548][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5552.363548][ T253] ip6_route_add+0x1c/0x140 [ 5552.363548][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5552.363548][ T253] addrconf_add_dev+0xe2/0x170 [ 5552.363548][ T253] inet6_addr_add+0x12f/0xa40 [ 5552.363548][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5552.363548][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5552.363548][ T253] netlink_rcv_skb+0x130/0x360 [ 5552.363548][ T253] netlink_unicast+0x449/0x710 [ 5552.363548][ T253] netlink_sendmsg+0x723/0xbe0 [ 5552.363548][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5552.363548][ T253] ___sys_sendmsg+0xee/0x170 [ 5552.363548][ T253] __sys_sendmsg+0xcd/0x170 [ 5552.363548][ T253] do_syscall_64+0xc6/0x1e0 [ 5552.363548][ T253] [ 5552.365756][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5552.365756][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5552.365756][ T253] ipv6_find_idev+0x102/0x170 [ 5552.365756][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5552.365756][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5552.365756][ T253] netlink_rcv_skb+0x130/0x360 [ 5552.365756][ T253] netlink_unicast+0x449/0x710 [ 5552.365756][ T253] netlink_sendmsg+0x723/0xbe0 [ 5552.365756][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5552.365756][ T253] ___sys_sendmsg+0xee/0x170 [ 5552.365756][ T253] __sys_sendmsg+0xcd/0x170 [ 5552.365756][ T253] do_syscall_64+0xc6/0x1e0 [ 5552.365756][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5552.365756][ T253] [ 5552.367482][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5552.367482][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5552.367482][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5552.367482][ T253] ipv6_find_idev+0x102/0x170 [ 5552.367482][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5552.367482][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5552.367482][ T253] netlink_rcv_skb+0x130/0x360 [ 5552.367482][ T253] netlink_unicast+0x449/0x710 [ 5552.367482][ T253] netlink_sendmsg+0x723/0xbe0 [ 5552.367482][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5552.367482][ T253] ___sys_sendmsg+0xee/0x170 [ 5552.367482][ T253] __sys_sendmsg+0xcd/0x170 [ 5552.367482][ T253] do_syscall_64+0xc6/0x1e0 [ 5552.367482][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5552.367482][ T253] [ 5562.610331][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5562.610833][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5562.610833][ T253] dst_init+0x84/0x4a0 [ 5562.610833][ T253] dst_alloc+0x97/0x150 [ 5562.610833][ T253] ip6_dst_alloc+0x23/0x90 [ 5562.610833][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5562.610833][ T253] ip6_pol_route+0x56f/0x840 [ 5562.610833][ T253] fib6_rule_lookup+0x334/0x630 [ 5562.610833][ T253] ip6_route_output_flags+0x259/0x480 [ 5562.610833][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5562.610833][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5562.610833][ T253] netlink_rcv_skb+0x130/0x360 [ 5562.610833][ T253] netlink_unicast+0x449/0x710 [ 5562.610833][ T253] netlink_sendmsg+0x723/0xbe0 [ 5562.610833][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5562.610833][ T253] ___sys_sendmsg+0xee/0x170 [ 5562.610833][ T253] __sys_sendmsg+0xcd/0x170 [ 5562.610833][ T253] do_syscall_64+0xc6/0x1e0 [ 5562.610833][ T253] [ 5562.613038][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5562.613038][ T253] netdev_get_by_index+0x5e/0x80 [ 5562.613038][ T253] fib6_nh_init+0x3d8/0x1580 [ 5562.613038][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5562.613038][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5562.613038][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5562.613038][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5562.613038][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5562.613038][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5562.613038][ T253] addrconf_dad_begin+0x310/0x670 [ 5562.613038][ T253] addrconf_dad_work+0x10b/0xab0 [ 5562.613038][ T253] process_one_work+0x84d/0x18a0 [ 5562.613038][ T253] worker_thread+0x587/0xd30 [ 5562.613038][ T253] kthread+0x28a/0x350 [ 5562.613038][ T253] ret_from_fork+0x31/0x70 [ 5562.613038][ T253] ret_from_fork_asm+0x1a/0x30 [ 5562.613038][ T253] [ 5562.615191][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5562.615191][ T253] netdev_get_by_index+0x5e/0x80 [ 5562.615191][ T253] fib6_nh_init+0x3d8/0x1580 [ 5562.615191][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5562.615191][ T253] ip6_route_add+0x1c/0x140 [ 5562.615191][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5562.615191][ T253] inet6_addr_add+0x4f8/0xa40 [ 5562.615191][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5562.615191][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5562.615191][ T253] netlink_rcv_skb+0x130/0x360 [ 5562.615191][ T253] netlink_unicast+0x449/0x710 [ 5562.615191][ T253] netlink_sendmsg+0x723/0xbe0 [ 5562.615191][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5562.615191][ T253] ___sys_sendmsg+0xee/0x170 [ 5562.615191][ T253] __sys_sendmsg+0xcd/0x170 [ 5562.615191][ T253] do_syscall_64+0xc6/0x1e0 [ 5562.615191][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5562.615191][ T253] [ 5562.617436][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5562.617436][ T253] netdev_get_by_index+0x5e/0x80 [ 5562.617436][ T253] fib6_nh_init+0x3d8/0x1580 [ 5562.617436][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5562.617436][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5562.617436][ T253] ipv6_add_addr+0x411/0x2000 [ 5562.617436][ T253] inet6_addr_add+0x30e/0xa40 [ 5562.617436][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5562.617436][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5562.617436][ T253] netlink_rcv_skb+0x130/0x360 [ 5562.617436][ T253] netlink_unicast+0x449/0x710 [ 5562.617436][ T253] netlink_sendmsg+0x723/0xbe0 [ 5562.617436][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5562.617436][ T253] ___sys_sendmsg+0xee/0x170 [ 5562.617436][ T253] __sys_sendmsg+0xcd/0x170 [ 5562.617436][ T253] do_syscall_64+0xc6/0x1e0 [ 5562.617436][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5562.617436][ T253] [ 5562.620040][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5562.620040][ T253] netdev_get_by_index+0x5e/0x80 [ 5562.620040][ T253] fib6_nh_init+0x3d8/0x1580 [ 5562.620040][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5562.620040][ T253] ip6_route_add+0x1c/0x140 [ 5562.620040][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5562.620040][ T253] addrconf_add_dev+0xe2/0x170 [ 5562.620040][ T253] inet6_addr_add+0x12f/0xa40 [ 5562.620040][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5562.620040][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5562.620040][ T253] netlink_rcv_skb+0x130/0x360 [ 5562.620040][ T253] netlink_unicast+0x449/0x710 [ 5562.620040][ T253] netlink_sendmsg+0x723/0xbe0 [ 5562.620040][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5562.620040][ T253] ___sys_sendmsg+0xee/0x170 [ 5562.620040][ T253] __sys_sendmsg+0xcd/0x170 [ 5562.620040][ T253] do_syscall_64+0xc6/0x1e0 [ 5562.620040][ T253] [ 5562.622235][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5562.622235][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5562.622235][ T253] ipv6_find_idev+0x102/0x170 [ 5562.622235][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5562.622235][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5562.622235][ T253] netlink_rcv_skb+0x130/0x360 [ 5562.622235][ T253] netlink_unicast+0x449/0x710 [ 5562.622235][ T253] netlink_sendmsg+0x723/0xbe0 [ 5562.622235][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5562.622235][ T253] ___sys_sendmsg+0xee/0x170 [ 5562.622235][ T253] __sys_sendmsg+0xcd/0x170 [ 5562.622235][ T253] do_syscall_64+0xc6/0x1e0 [ 5562.622235][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5562.622235][ T253] [ 5562.623965][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5562.623965][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5562.623965][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5562.623965][ T253] ipv6_find_idev+0x102/0x170 [ 5562.623965][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5562.623965][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5562.623965][ T253] netlink_rcv_skb+0x130/0x360 [ 5562.623965][ T253] netlink_unicast+0x449/0x710 [ 5562.623965][ T253] netlink_sendmsg+0x723/0xbe0 [ 5562.623965][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5562.623965][ T253] ___sys_sendmsg+0xee/0x170 [ 5562.623965][ T253] __sys_sendmsg+0xcd/0x170 [ 5562.623965][ T253] do_syscall_64+0xc6/0x1e0 [ 5562.623965][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5562.623965][ T253] [ 5572.866307][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5572.866779][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5572.866779][ T253] dst_init+0x84/0x4a0 [ 5572.866779][ T253] dst_alloc+0x97/0x150 [ 5572.866779][ T253] ip6_dst_alloc+0x23/0x90 [ 5572.866779][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5572.866779][ T253] ip6_pol_route+0x56f/0x840 [ 5572.866779][ T253] fib6_rule_lookup+0x334/0x630 [ 5572.866779][ T253] ip6_route_output_flags+0x259/0x480 [ 5572.866779][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5572.866779][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5572.866779][ T253] netlink_rcv_skb+0x130/0x360 [ 5572.866779][ T253] netlink_unicast+0x449/0x710 [ 5572.866779][ T253] netlink_sendmsg+0x723/0xbe0 [ 5572.866779][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5572.866779][ T253] ___sys_sendmsg+0xee/0x170 [ 5572.866779][ T253] __sys_sendmsg+0xcd/0x170 [ 5572.866779][ T253] do_syscall_64+0xc6/0x1e0 [ 5572.866779][ T253] [ 5572.869031][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5572.869031][ T253] netdev_get_by_index+0x5e/0x80 [ 5572.869031][ T253] fib6_nh_init+0x3d8/0x1580 [ 5572.869031][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5572.869031][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5572.869031][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5572.869031][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5572.869031][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5572.869031][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5572.869031][ T253] addrconf_dad_begin+0x310/0x670 [ 5572.869031][ T253] addrconf_dad_work+0x10b/0xab0 [ 5572.869031][ T253] process_one_work+0x84d/0x18a0 [ 5572.869031][ T253] worker_thread+0x587/0xd30 [ 5572.869031][ T253] kthread+0x28a/0x350 [ 5572.869031][ T253] ret_from_fork+0x31/0x70 [ 5572.869031][ T253] ret_from_fork_asm+0x1a/0x30 [ 5572.869031][ T253] [ 5572.871173][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5572.871173][ T253] netdev_get_by_index+0x5e/0x80 [ 5572.871173][ T253] fib6_nh_init+0x3d8/0x1580 [ 5572.871173][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5572.871173][ T253] ip6_route_add+0x1c/0x140 [ 5572.871173][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5572.871173][ T253] inet6_addr_add+0x4f8/0xa40 [ 5572.871173][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5572.871173][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5572.871173][ T253] netlink_rcv_skb+0x130/0x360 [ 5572.871173][ T253] netlink_unicast+0x449/0x710 [ 5572.871173][ T253] netlink_sendmsg+0x723/0xbe0 [ 5572.871173][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5572.871173][ T253] ___sys_sendmsg+0xee/0x170 [ 5572.871173][ T253] __sys_sendmsg+0xcd/0x170 [ 5572.871173][ T253] do_syscall_64+0xc6/0x1e0 [ 5572.871173][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5572.871173][ T253] [ 5572.873405][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5572.873405][ T253] netdev_get_by_index+0x5e/0x80 [ 5572.873405][ T253] fib6_nh_init+0x3d8/0x1580 [ 5572.873405][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5572.873405][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5572.873405][ T253] ipv6_add_addr+0x411/0x2000 [ 5572.873405][ T253] inet6_addr_add+0x30e/0xa40 [ 5572.873405][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5572.873405][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5572.873405][ T253] netlink_rcv_skb+0x130/0x360 [ 5572.873405][ T253] netlink_unicast+0x449/0x710 [ 5572.873405][ T253] netlink_sendmsg+0x723/0xbe0 [ 5572.873405][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5572.873405][ T253] ___sys_sendmsg+0xee/0x170 [ 5572.873405][ T253] __sys_sendmsg+0xcd/0x170 [ 5572.873405][ T253] do_syscall_64+0xc6/0x1e0 [ 5572.873405][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5572.873405][ T253] [ 5572.875645][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5572.875645][ T253] netdev_get_by_index+0x5e/0x80 [ 5572.875645][ T253] fib6_nh_init+0x3d8/0x1580 [ 5572.875645][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5572.875645][ T253] ip6_route_add+0x1c/0x140 [ 5572.875645][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5572.875645][ T253] addrconf_add_dev+0xe2/0x170 [ 5572.875645][ T253] inet6_addr_add+0x12f/0xa40 [ 5572.875645][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5572.875645][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5572.875645][ T253] netlink_rcv_skb+0x130/0x360 [ 5572.875645][ T253] netlink_unicast+0x449/0x710 [ 5572.875645][ T253] netlink_sendmsg+0x723/0xbe0 [ 5572.875645][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5572.875645][ T253] ___sys_sendmsg+0xee/0x170 [ 5572.875645][ T253] __sys_sendmsg+0xcd/0x170 [ 5572.875645][ T253] do_syscall_64+0xc6/0x1e0 [ 5572.875645][ T253] [ 5572.877840][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5572.877840][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5572.877840][ T253] ipv6_find_idev+0x102/0x170 [ 5572.877840][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5572.877840][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5572.877840][ T253] netlink_rcv_skb+0x130/0x360 [ 5572.877840][ T253] netlink_unicast+0x449/0x710 [ 5572.877840][ T253] netlink_sendmsg+0x723/0xbe0 [ 5572.877840][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5572.877840][ T253] ___sys_sendmsg+0xee/0x170 [ 5572.877840][ T253] __sys_sendmsg+0xcd/0x170 [ 5572.877840][ T253] do_syscall_64+0xc6/0x1e0 [ 5572.877840][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5572.877840][ T253] [ 5572.879559][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5572.879559][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5572.879559][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5572.879559][ T253] ipv6_find_idev+0x102/0x170 [ 5572.879559][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5572.879559][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5572.879559][ T253] netlink_rcv_skb+0x130/0x360 [ 5572.879559][ T253] netlink_unicast+0x449/0x710 [ 5572.879559][ T253] netlink_sendmsg+0x723/0xbe0 [ 5572.879559][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5572.879559][ T253] ___sys_sendmsg+0xee/0x170 [ 5572.879559][ T253] __sys_sendmsg+0xcd/0x170 [ 5572.879559][ T253] do_syscall_64+0xc6/0x1e0 [ 5572.879559][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5572.879559][ T253] [ 5583.122300][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5583.122799][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5583.122799][ T253] dst_init+0x84/0x4a0 [ 5583.122799][ T253] dst_alloc+0x97/0x150 [ 5583.122799][ T253] ip6_dst_alloc+0x23/0x90 [ 5583.122799][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5583.122799][ T253] ip6_pol_route+0x56f/0x840 [ 5583.122799][ T253] fib6_rule_lookup+0x334/0x630 [ 5583.122799][ T253] ip6_route_output_flags+0x259/0x480 [ 5583.122799][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5583.122799][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5583.122799][ T253] netlink_rcv_skb+0x130/0x360 [ 5583.122799][ T253] netlink_unicast+0x449/0x710 [ 5583.122799][ T253] netlink_sendmsg+0x723/0xbe0 [ 5583.122799][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5583.122799][ T253] ___sys_sendmsg+0xee/0x170 [ 5583.122799][ T253] __sys_sendmsg+0xcd/0x170 [ 5583.122799][ T253] do_syscall_64+0xc6/0x1e0 [ 5583.122799][ T253] [ 5583.125005][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5583.125005][ T253] netdev_get_by_index+0x5e/0x80 [ 5583.125005][ T253] fib6_nh_init+0x3d8/0x1580 [ 5583.125005][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5583.125005][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5583.125005][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5583.125005][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5583.125005][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5583.125005][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5583.125005][ T253] addrconf_dad_begin+0x310/0x670 [ 5583.125005][ T253] addrconf_dad_work+0x10b/0xab0 [ 5583.125005][ T253] process_one_work+0x84d/0x18a0 [ 5583.125005][ T253] worker_thread+0x587/0xd30 [ 5583.125005][ T253] kthread+0x28a/0x350 [ 5583.125005][ T253] ret_from_fork+0x31/0x70 [ 5583.125005][ T253] ret_from_fork_asm+0x1a/0x30 [ 5583.125005][ T253] [ 5583.127156][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5583.127156][ T253] netdev_get_by_index+0x5e/0x80 [ 5583.127156][ T253] fib6_nh_init+0x3d8/0x1580 [ 5583.127156][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5583.127156][ T253] ip6_route_add+0x1c/0x140 [ 5583.127156][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5583.127156][ T253] inet6_addr_add+0x4f8/0xa40 [ 5583.127156][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5583.127156][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5583.127156][ T253] netlink_rcv_skb+0x130/0x360 [ 5583.127156][ T253] netlink_unicast+0x449/0x710 [ 5583.127156][ T253] netlink_sendmsg+0x723/0xbe0 [ 5583.127156][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5583.127156][ T253] ___sys_sendmsg+0xee/0x170 [ 5583.127156][ T253] __sys_sendmsg+0xcd/0x170 [ 5583.127156][ T253] do_syscall_64+0xc6/0x1e0 [ 5583.127156][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5583.127156][ T253] [ 5583.129395][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5583.129395][ T253] netdev_get_by_index+0x5e/0x80 [ 5583.129395][ T253] fib6_nh_init+0x3d8/0x1580 [ 5583.129395][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5583.129395][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5583.129395][ T253] ipv6_add_addr+0x411/0x2000 [ 5583.129395][ T253] inet6_addr_add+0x30e/0xa40 [ 5583.129395][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5583.129395][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5583.129395][ T253] netlink_rcv_skb+0x130/0x360 [ 5583.129395][ T253] netlink_unicast+0x449/0x710 [ 5583.129395][ T253] netlink_sendmsg+0x723/0xbe0 [ 5583.129395][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5583.129395][ T253] ___sys_sendmsg+0xee/0x170 [ 5583.129395][ T253] __sys_sendmsg+0xcd/0x170 [ 5583.129395][ T253] do_syscall_64+0xc6/0x1e0 [ 5583.129395][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5583.129395][ T253] [ 5583.131639][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5583.131639][ T253] netdev_get_by_index+0x5e/0x80 [ 5583.131639][ T253] fib6_nh_init+0x3d8/0x1580 [ 5583.131639][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5583.131639][ T253] ip6_route_add+0x1c/0x140 [ 5583.131639][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5583.131639][ T253] addrconf_add_dev+0xe2/0x170 [ 5583.131639][ T253] inet6_addr_add+0x12f/0xa40 [ 5583.131639][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5583.131639][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5583.131639][ T253] netlink_rcv_skb+0x130/0x360 [ 5583.131639][ T253] netlink_unicast+0x449/0x710 [ 5583.131639][ T253] netlink_sendmsg+0x723/0xbe0 [ 5583.131639][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5583.131639][ T253] ___sys_sendmsg+0xee/0x170 [ 5583.131639][ T253] __sys_sendmsg+0xcd/0x170 [ 5583.131639][ T253] do_syscall_64+0xc6/0x1e0 [ 5583.131639][ T253] [ 5583.133836][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5583.133836][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5583.133836][ T253] ipv6_find_idev+0x102/0x170 [ 5583.133836][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5583.133836][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5583.133836][ T253] netlink_rcv_skb+0x130/0x360 [ 5583.133836][ T253] netlink_unicast+0x449/0x710 [ 5583.133836][ T253] netlink_sendmsg+0x723/0xbe0 [ 5583.133836][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5583.133836][ T253] ___sys_sendmsg+0xee/0x170 [ 5583.133836][ T253] __sys_sendmsg+0xcd/0x170 [ 5583.133836][ T253] do_syscall_64+0xc6/0x1e0 [ 5583.133836][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5583.133836][ T253] [ 5583.135551][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5583.135551][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5583.135551][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5583.135551][ T253] ipv6_find_idev+0x102/0x170 [ 5583.135551][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5583.135551][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5583.135551][ T253] netlink_rcv_skb+0x130/0x360 [ 5583.135551][ T253] netlink_unicast+0x449/0x710 [ 5583.135551][ T253] netlink_sendmsg+0x723/0xbe0 [ 5583.135551][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5583.135551][ T253] ___sys_sendmsg+0xee/0x170 [ 5583.135551][ T253] __sys_sendmsg+0xcd/0x170 [ 5583.135551][ T253] do_syscall_64+0xc6/0x1e0 [ 5583.135551][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5583.135551][ T253] [ 5593.266309][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5593.266801][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5593.266801][ T253] dst_init+0x84/0x4a0 [ 5593.266801][ T253] dst_alloc+0x97/0x150 [ 5593.266801][ T253] ip6_dst_alloc+0x23/0x90 [ 5593.266801][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5593.266801][ T253] ip6_pol_route+0x56f/0x840 [ 5593.266801][ T253] fib6_rule_lookup+0x334/0x630 [ 5593.266801][ T253] ip6_route_output_flags+0x259/0x480 [ 5593.266801][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5593.266801][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5593.266801][ T253] netlink_rcv_skb+0x130/0x360 [ 5593.266801][ T253] netlink_unicast+0x449/0x710 [ 5593.266801][ T253] netlink_sendmsg+0x723/0xbe0 [ 5593.266801][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5593.266801][ T253] ___sys_sendmsg+0xee/0x170 [ 5593.266801][ T253] __sys_sendmsg+0xcd/0x170 [ 5593.266801][ T253] do_syscall_64+0xc6/0x1e0 [ 5593.266801][ T253] [ 5593.269005][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5593.269005][ T253] netdev_get_by_index+0x5e/0x80 [ 5593.269005][ T253] fib6_nh_init+0x3d8/0x1580 [ 5593.269005][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5593.269005][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5593.269005][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5593.269005][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5593.269005][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5593.269005][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5593.269005][ T253] addrconf_dad_begin+0x310/0x670 [ 5593.269005][ T253] addrconf_dad_work+0x10b/0xab0 [ 5593.269005][ T253] process_one_work+0x84d/0x18a0 [ 5593.269005][ T253] worker_thread+0x587/0xd30 [ 5593.269005][ T253] kthread+0x28a/0x350 [ 5593.269005][ T253] ret_from_fork+0x31/0x70 [ 5593.269005][ T253] ret_from_fork_asm+0x1a/0x30 [ 5593.269005][ T253] [ 5593.271152][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5593.271152][ T253] netdev_get_by_index+0x5e/0x80 [ 5593.271152][ T253] fib6_nh_init+0x3d8/0x1580 [ 5593.271152][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5593.271152][ T253] ip6_route_add+0x1c/0x140 [ 5593.271152][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5593.271152][ T253] inet6_addr_add+0x4f8/0xa40 [ 5593.271152][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5593.271152][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5593.271152][ T253] netlink_rcv_skb+0x130/0x360 [ 5593.271152][ T253] netlink_unicast+0x449/0x710 [ 5593.271152][ T253] netlink_sendmsg+0x723/0xbe0 [ 5593.271152][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5593.271152][ T253] ___sys_sendmsg+0xee/0x170 [ 5593.271152][ T253] __sys_sendmsg+0xcd/0x170 [ 5593.271152][ T253] do_syscall_64+0xc6/0x1e0 [ 5593.271152][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5593.271152][ T253] [ 5593.273391][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5593.273391][ T253] netdev_get_by_index+0x5e/0x80 [ 5593.273391][ T253] fib6_nh_init+0x3d8/0x1580 [ 5593.273391][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5593.273391][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5593.273391][ T253] ipv6_add_addr+0x411/0x2000 [ 5593.273391][ T253] inet6_addr_add+0x30e/0xa40 [ 5593.273391][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5593.273391][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5593.273391][ T253] netlink_rcv_skb+0x130/0x360 [ 5593.273391][ T253] netlink_unicast+0x449/0x710 [ 5593.273391][ T253] netlink_sendmsg+0x723/0xbe0 [ 5593.273391][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5593.273391][ T253] ___sys_sendmsg+0xee/0x170 [ 5593.273391][ T253] __sys_sendmsg+0xcd/0x170 [ 5593.273391][ T253] do_syscall_64+0xc6/0x1e0 [ 5593.273391][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5593.273391][ T253] [ 5593.275647][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5593.275647][ T253] netdev_get_by_index+0x5e/0x80 [ 5593.275647][ T253] fib6_nh_init+0x3d8/0x1580 [ 5593.275647][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5593.275647][ T253] ip6_route_add+0x1c/0x140 [ 5593.275647][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5593.275647][ T253] addrconf_add_dev+0xe2/0x170 [ 5593.275647][ T253] inet6_addr_add+0x12f/0xa40 [ 5593.275647][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5593.275647][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5593.275647][ T253] netlink_rcv_skb+0x130/0x360 [ 5593.275647][ T253] netlink_unicast+0x449/0x710 [ 5593.275647][ T253] netlink_sendmsg+0x723/0xbe0 [ 5593.275647][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5593.275647][ T253] ___sys_sendmsg+0xee/0x170 [ 5593.275647][ T253] __sys_sendmsg+0xcd/0x170 [ 5593.275647][ T253] do_syscall_64+0xc6/0x1e0 [ 5593.275647][ T253] [ 5593.277846][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5593.277846][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5593.277846][ T253] ipv6_find_idev+0x102/0x170 [ 5593.277846][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5593.277846][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5593.277846][ T253] netlink_rcv_skb+0x130/0x360 [ 5593.277846][ T253] netlink_unicast+0x449/0x710 [ 5593.277846][ T253] netlink_sendmsg+0x723/0xbe0 [ 5593.277846][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5593.277846][ T253] ___sys_sendmsg+0xee/0x170 [ 5593.277846][ T253] __sys_sendmsg+0xcd/0x170 [ 5593.277846][ T253] do_syscall_64+0xc6/0x1e0 [ 5593.277846][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5593.277846][ T253] [ 5593.279571][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5593.279571][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5593.279571][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5593.279571][ T253] ipv6_find_idev+0x102/0x170 [ 5593.279571][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5593.279571][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5593.279571][ T253] netlink_rcv_skb+0x130/0x360 [ 5593.279571][ T253] netlink_unicast+0x449/0x710 [ 5593.279571][ T253] netlink_sendmsg+0x723/0xbe0 [ 5593.279571][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5593.279571][ T253] ___sys_sendmsg+0xee/0x170 [ 5593.279571][ T253] __sys_sendmsg+0xcd/0x170 [ 5593.279571][ T253] do_syscall_64+0xc6/0x1e0 [ 5593.279571][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5593.279571][ T253] [ 5603.530310][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5603.530787][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5603.530787][ T253] dst_init+0x84/0x4a0 [ 5603.530787][ T253] dst_alloc+0x97/0x150 [ 5603.530787][ T253] ip6_dst_alloc+0x23/0x90 [ 5603.530787][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5603.530787][ T253] ip6_pol_route+0x56f/0x840 [ 5603.530787][ T253] fib6_rule_lookup+0x334/0x630 [ 5603.530787][ T253] ip6_route_output_flags+0x259/0x480 [ 5603.530787][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5603.530787][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5603.530787][ T253] netlink_rcv_skb+0x130/0x360 [ 5603.530787][ T253] netlink_unicast+0x449/0x710 [ 5603.530787][ T253] netlink_sendmsg+0x723/0xbe0 [ 5603.530787][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5603.530787][ T253] ___sys_sendmsg+0xee/0x170 [ 5603.530787][ T253] __sys_sendmsg+0xcd/0x170 [ 5603.530787][ T253] do_syscall_64+0xc6/0x1e0 [ 5603.530787][ T253] [ 5603.532990][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5603.532990][ T253] netdev_get_by_index+0x5e/0x80 [ 5603.532990][ T253] fib6_nh_init+0x3d8/0x1580 [ 5603.532990][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5603.532990][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5603.532990][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5603.532990][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5603.532990][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5603.532990][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5603.532990][ T253] addrconf_dad_begin+0x310/0x670 [ 5603.532990][ T253] addrconf_dad_work+0x10b/0xab0 [ 5603.532990][ T253] process_one_work+0x84d/0x18a0 [ 5603.532990][ T253] worker_thread+0x587/0xd30 [ 5603.532990][ T253] kthread+0x28a/0x350 [ 5603.532990][ T253] ret_from_fork+0x31/0x70 [ 5603.532990][ T253] ret_from_fork_asm+0x1a/0x30 [ 5603.532990][ T253] [ 5603.535144][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5603.535144][ T253] netdev_get_by_index+0x5e/0x80 [ 5603.535144][ T253] fib6_nh_init+0x3d8/0x1580 [ 5603.535144][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5603.535144][ T253] ip6_route_add+0x1c/0x140 [ 5603.535144][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5603.535144][ T253] inet6_addr_add+0x4f8/0xa40 [ 5603.535144][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5603.535144][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5603.535144][ T253] netlink_rcv_skb+0x130/0x360 [ 5603.535144][ T253] netlink_unicast+0x449/0x710 [ 5603.535144][ T253] netlink_sendmsg+0x723/0xbe0 [ 5603.535144][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5603.535144][ T253] ___sys_sendmsg+0xee/0x170 [ 5603.535144][ T253] __sys_sendmsg+0xcd/0x170 [ 5603.535144][ T253] do_syscall_64+0xc6/0x1e0 [ 5603.535144][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5603.535144][ T253] [ 5603.537379][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5603.537379][ T253] netdev_get_by_index+0x5e/0x80 [ 5603.537379][ T253] fib6_nh_init+0x3d8/0x1580 [ 5603.537379][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5603.537379][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5603.537379][ T253] ipv6_add_addr+0x411/0x2000 [ 5603.537379][ T253] inet6_addr_add+0x30e/0xa40 [ 5603.537379][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5603.537379][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5603.537379][ T253] netlink_rcv_skb+0x130/0x360 [ 5603.537379][ T253] netlink_unicast+0x449/0x710 [ 5603.537379][ T253] netlink_sendmsg+0x723/0xbe0 [ 5603.537379][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5603.537379][ T253] ___sys_sendmsg+0xee/0x170 [ 5603.537379][ T253] __sys_sendmsg+0xcd/0x170 [ 5603.537379][ T253] do_syscall_64+0xc6/0x1e0 [ 5603.537379][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5603.537379][ T253] [ 5603.539616][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5603.539616][ T253] netdev_get_by_index+0x5e/0x80 [ 5603.539616][ T253] fib6_nh_init+0x3d8/0x1580 [ 5603.539616][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5603.539616][ T253] ip6_route_add+0x1c/0x140 [ 5603.539616][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5603.539616][ T253] addrconf_add_dev+0xe2/0x170 [ 5603.539616][ T253] inet6_addr_add+0x12f/0xa40 [ 5603.539616][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5603.539616][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5603.539616][ T253] netlink_rcv_skb+0x130/0x360 [ 5603.539616][ T253] netlink_unicast+0x449/0x710 [ 5603.539616][ T253] netlink_sendmsg+0x723/0xbe0 [ 5603.539616][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5603.539616][ T253] ___sys_sendmsg+0xee/0x170 [ 5603.539616][ T253] __sys_sendmsg+0xcd/0x170 [ 5603.539616][ T253] do_syscall_64+0xc6/0x1e0 [ 5603.539616][ T253] [ 5603.541812][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5603.541812][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5603.541812][ T253] ipv6_find_idev+0x102/0x170 [ 5603.541812][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5603.541812][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5603.541812][ T253] netlink_rcv_skb+0x130/0x360 [ 5603.541812][ T253] netlink_unicast+0x449/0x710 [ 5603.541812][ T253] netlink_sendmsg+0x723/0xbe0 [ 5603.541812][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5603.541812][ T253] ___sys_sendmsg+0xee/0x170 [ 5603.541812][ T253] __sys_sendmsg+0xcd/0x170 [ 5603.541812][ T253] do_syscall_64+0xc6/0x1e0 [ 5603.541812][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5603.541812][ T253] [ 5603.543551][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5603.543551][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5603.543551][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5603.543551][ T253] ipv6_find_idev+0x102/0x170 [ 5603.543551][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5603.543551][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5603.543551][ T253] netlink_rcv_skb+0x130/0x360 [ 5603.543551][ T253] netlink_unicast+0x449/0x710 [ 5603.543551][ T253] netlink_sendmsg+0x723/0xbe0 [ 5603.543551][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5603.543551][ T253] ___sys_sendmsg+0xee/0x170 [ 5603.543551][ T253] __sys_sendmsg+0xcd/0x170 [ 5603.543551][ T253] do_syscall_64+0xc6/0x1e0 [ 5603.543551][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5603.543551][ T253] [ 5613.794252][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5613.794722][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5613.794722][ T253] dst_init+0x84/0x4a0 [ 5613.794722][ T253] dst_alloc+0x97/0x150 [ 5613.794722][ T253] ip6_dst_alloc+0x23/0x90 [ 5613.794722][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5613.794722][ T253] ip6_pol_route+0x56f/0x840 [ 5613.794722][ T253] fib6_rule_lookup+0x334/0x630 [ 5613.794722][ T253] ip6_route_output_flags+0x259/0x480 [ 5613.794722][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5613.794722][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5613.794722][ T253] netlink_rcv_skb+0x130/0x360 [ 5613.794722][ T253] netlink_unicast+0x449/0x710 [ 5613.794722][ T253] netlink_sendmsg+0x723/0xbe0 [ 5613.794722][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5613.794722][ T253] ___sys_sendmsg+0xee/0x170 [ 5613.794722][ T253] __sys_sendmsg+0xcd/0x170 [ 5613.794722][ T253] do_syscall_64+0xc6/0x1e0 [ 5613.794722][ T253] [ 5613.796920][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5613.796920][ T253] netdev_get_by_index+0x5e/0x80 [ 5613.796920][ T253] fib6_nh_init+0x3d8/0x1580 [ 5613.796920][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5613.796920][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5613.796920][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5613.796920][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5613.796920][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5613.796920][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5613.796920][ T253] addrconf_dad_begin+0x310/0x670 [ 5613.796920][ T253] addrconf_dad_work+0x10b/0xab0 [ 5613.796920][ T253] process_one_work+0x84d/0x18a0 [ 5613.796920][ T253] worker_thread+0x587/0xd30 [ 5613.796920][ T253] kthread+0x28a/0x350 [ 5613.796920][ T253] ret_from_fork+0x31/0x70 [ 5613.796920][ T253] ret_from_fork_asm+0x1a/0x30 [ 5613.796920][ T253] [ 5613.799053][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5613.799053][ T253] netdev_get_by_index+0x5e/0x80 [ 5613.799053][ T253] fib6_nh_init+0x3d8/0x1580 [ 5613.799053][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5613.799053][ T253] ip6_route_add+0x1c/0x140 [ 5613.799053][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5613.799053][ T253] inet6_addr_add+0x4f8/0xa40 [ 5613.799053][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5613.799053][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5613.799053][ T253] netlink_rcv_skb+0x130/0x360 [ 5613.799053][ T253] netlink_unicast+0x449/0x710 [ 5613.799053][ T253] netlink_sendmsg+0x723/0xbe0 [ 5613.799053][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5613.799053][ T253] ___sys_sendmsg+0xee/0x170 [ 5613.799053][ T253] __sys_sendmsg+0xcd/0x170 [ 5613.799053][ T253] do_syscall_64+0xc6/0x1e0 [ 5613.799053][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5613.799053][ T253] [ 5613.801288][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5613.801288][ T253] netdev_get_by_index+0x5e/0x80 [ 5613.801288][ T253] fib6_nh_init+0x3d8/0x1580 [ 5613.801288][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5613.801288][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5613.801288][ T253] ipv6_add_addr+0x411/0x2000 [ 5613.801288][ T253] inet6_addr_add+0x30e/0xa40 [ 5613.801288][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5613.801288][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5613.801288][ T253] netlink_rcv_skb+0x130/0x360 [ 5613.801288][ T253] netlink_unicast+0x449/0x710 [ 5613.801288][ T253] netlink_sendmsg+0x723/0xbe0 [ 5613.801288][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5613.801288][ T253] ___sys_sendmsg+0xee/0x170 [ 5613.801288][ T253] __sys_sendmsg+0xcd/0x170 [ 5613.801288][ T253] do_syscall_64+0xc6/0x1e0 [ 5613.801288][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5613.801288][ T253] [ 5613.803545][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5613.803545][ T253] netdev_get_by_index+0x5e/0x80 [ 5613.803545][ T253] fib6_nh_init+0x3d8/0x1580 [ 5613.803545][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5613.803545][ T253] ip6_route_add+0x1c/0x140 [ 5613.803545][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5613.803545][ T253] addrconf_add_dev+0xe2/0x170 [ 5613.803545][ T253] inet6_addr_add+0x12f/0xa40 [ 5613.803545][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5613.803545][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5613.803545][ T253] netlink_rcv_skb+0x130/0x360 [ 5613.803545][ T253] netlink_unicast+0x449/0x710 [ 5613.803545][ T253] netlink_sendmsg+0x723/0xbe0 [ 5613.803545][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5613.803545][ T253] ___sys_sendmsg+0xee/0x170 [ 5613.803545][ T253] __sys_sendmsg+0xcd/0x170 [ 5613.803545][ T253] do_syscall_64+0xc6/0x1e0 [ 5613.803545][ T253] [ 5613.805740][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5613.805740][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5613.805740][ T253] ipv6_find_idev+0x102/0x170 [ 5613.805740][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5613.805740][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5613.805740][ T253] netlink_rcv_skb+0x130/0x360 [ 5613.805740][ T253] netlink_unicast+0x449/0x710 [ 5613.805740][ T253] netlink_sendmsg+0x723/0xbe0 [ 5613.805740][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5613.805740][ T253] ___sys_sendmsg+0xee/0x170 [ 5613.805740][ T253] __sys_sendmsg+0xcd/0x170 [ 5613.805740][ T253] do_syscall_64+0xc6/0x1e0 [ 5613.805740][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5613.805740][ T253] [ 5613.807461][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5613.807461][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5613.807461][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5613.807461][ T253] ipv6_find_idev+0x102/0x170 [ 5613.807461][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5613.807461][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5613.807461][ T253] netlink_rcv_skb+0x130/0x360 [ 5613.807461][ T253] netlink_unicast+0x449/0x710 [ 5613.807461][ T253] netlink_sendmsg+0x723/0xbe0 [ 5613.807461][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5613.807461][ T253] ___sys_sendmsg+0xee/0x170 [ 5613.807461][ T253] __sys_sendmsg+0xcd/0x170 [ 5613.807461][ T253] do_syscall_64+0xc6/0x1e0 [ 5613.807461][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5613.807461][ T253] [ 5624.058228][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5624.058646][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5624.058646][ T253] dst_init+0x84/0x4a0 [ 5624.058646][ T253] dst_alloc+0x97/0x150 [ 5624.058646][ T253] ip6_dst_alloc+0x23/0x90 [ 5624.058646][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5624.058646][ T253] ip6_pol_route+0x56f/0x840 [ 5624.058646][ T253] fib6_rule_lookup+0x334/0x630 [ 5624.058646][ T253] ip6_route_output_flags+0x259/0x480 [ 5624.058646][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5624.058646][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5624.058646][ T253] netlink_rcv_skb+0x130/0x360 [ 5624.058646][ T253] netlink_unicast+0x449/0x710 [ 5624.058646][ T253] netlink_sendmsg+0x723/0xbe0 [ 5624.058646][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5624.058646][ T253] ___sys_sendmsg+0xee/0x170 [ 5624.058646][ T253] __sys_sendmsg+0xcd/0x170 [ 5624.058646][ T253] do_syscall_64+0xc6/0x1e0 [ 5624.058646][ T253] [ 5624.060834][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5624.060834][ T253] netdev_get_by_index+0x5e/0x80 [ 5624.060834][ T253] fib6_nh_init+0x3d8/0x1580 [ 5624.060834][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5624.060834][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5624.060834][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5624.060834][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5624.060834][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5624.060834][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5624.060834][ T253] addrconf_dad_begin+0x310/0x670 [ 5624.060834][ T253] addrconf_dad_work+0x10b/0xab0 [ 5624.060834][ T253] process_one_work+0x84d/0x18a0 [ 5624.060834][ T253] worker_thread+0x587/0xd30 [ 5624.060834][ T253] kthread+0x28a/0x350 [ 5624.060834][ T253] ret_from_fork+0x31/0x70 [ 5624.060834][ T253] ret_from_fork_asm+0x1a/0x30 [ 5624.060834][ T253] [ 5624.062959][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5624.062959][ T253] netdev_get_by_index+0x5e/0x80 [ 5624.062959][ T253] fib6_nh_init+0x3d8/0x1580 [ 5624.062959][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5624.062959][ T253] ip6_route_add+0x1c/0x140 [ 5624.062959][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5624.062959][ T253] inet6_addr_add+0x4f8/0xa40 [ 5624.062959][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5624.062959][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5624.062959][ T253] netlink_rcv_skb+0x130/0x360 [ 5624.062959][ T253] netlink_unicast+0x449/0x710 [ 5624.062959][ T253] netlink_sendmsg+0x723/0xbe0 [ 5624.062959][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5624.062959][ T253] ___sys_sendmsg+0xee/0x170 [ 5624.062959][ T253] __sys_sendmsg+0xcd/0x170 [ 5624.062959][ T253] do_syscall_64+0xc6/0x1e0 [ 5624.062959][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5624.062959][ T253] [ 5624.065217][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5624.065217][ T253] netdev_get_by_index+0x5e/0x80 [ 5624.065217][ T253] fib6_nh_init+0x3d8/0x1580 [ 5624.065217][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5624.065217][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5624.065217][ T253] ipv6_add_addr+0x411/0x2000 [ 5624.065217][ T253] inet6_addr_add+0x30e/0xa40 [ 5624.065217][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5624.065217][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5624.065217][ T253] netlink_rcv_skb+0x130/0x360 [ 5624.065217][ T253] netlink_unicast+0x449/0x710 [ 5624.065217][ T253] netlink_sendmsg+0x723/0xbe0 [ 5624.065217][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5624.065217][ T253] ___sys_sendmsg+0xee/0x170 [ 5624.065217][ T253] __sys_sendmsg+0xcd/0x170 [ 5624.065217][ T253] do_syscall_64+0xc6/0x1e0 [ 5624.065217][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5624.065217][ T253] [ 5624.067452][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5624.067452][ T253] netdev_get_by_index+0x5e/0x80 [ 5624.067452][ T253] fib6_nh_init+0x3d8/0x1580 [ 5624.067452][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5624.067452][ T253] ip6_route_add+0x1c/0x140 [ 5624.067452][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5624.067452][ T253] addrconf_add_dev+0xe2/0x170 [ 5624.067452][ T253] inet6_addr_add+0x12f/0xa40 [ 5624.067452][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5624.067452][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5624.067452][ T253] netlink_rcv_skb+0x130/0x360 [ 5624.067452][ T253] netlink_unicast+0x449/0x710 [ 5624.067452][ T253] netlink_sendmsg+0x723/0xbe0 [ 5624.067452][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5624.067452][ T253] ___sys_sendmsg+0xee/0x170 [ 5624.067452][ T253] __sys_sendmsg+0xcd/0x170 [ 5624.067452][ T253] do_syscall_64+0xc6/0x1e0 [ 5624.067452][ T253] [ 5624.069645][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5624.069645][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5624.069645][ T253] ipv6_find_idev+0x102/0x170 [ 5624.069645][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5624.069645][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5624.069645][ T253] netlink_rcv_skb+0x130/0x360 [ 5624.069645][ T253] netlink_unicast+0x449/0x710 [ 5624.069645][ T253] netlink_sendmsg+0x723/0xbe0 [ 5624.069645][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5624.069645][ T253] ___sys_sendmsg+0xee/0x170 [ 5624.069645][ T253] __sys_sendmsg+0xcd/0x170 [ 5624.069645][ T253] do_syscall_64+0xc6/0x1e0 [ 5624.069645][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5624.069645][ T253] [ 5624.071364][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5624.071364][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5624.071364][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5624.071364][ T253] ipv6_find_idev+0x102/0x170 [ 5624.071364][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5624.071364][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5624.071364][ T253] netlink_rcv_skb+0x130/0x360 [ 5624.071364][ T253] netlink_unicast+0x449/0x710 [ 5624.071364][ T253] netlink_sendmsg+0x723/0xbe0 [ 5624.071364][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5624.071364][ T253] ___sys_sendmsg+0xee/0x170 [ 5624.071364][ T253] __sys_sendmsg+0xcd/0x170 [ 5624.071364][ T253] do_syscall_64+0xc6/0x1e0 [ 5624.071364][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5624.071364][ T253] [ 5634.322225][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5634.322699][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5634.322699][ T253] dst_init+0x84/0x4a0 [ 5634.322699][ T253] dst_alloc+0x97/0x150 [ 5634.322699][ T253] ip6_dst_alloc+0x23/0x90 [ 5634.322699][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5634.322699][ T253] ip6_pol_route+0x56f/0x840 [ 5634.322699][ T253] fib6_rule_lookup+0x334/0x630 [ 5634.322699][ T253] ip6_route_output_flags+0x259/0x480 [ 5634.322699][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5634.322699][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5634.322699][ T253] netlink_rcv_skb+0x130/0x360 [ 5634.322699][ T253] netlink_unicast+0x449/0x710 [ 5634.322699][ T253] netlink_sendmsg+0x723/0xbe0 [ 5634.322699][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5634.322699][ T253] ___sys_sendmsg+0xee/0x170 [ 5634.322699][ T253] __sys_sendmsg+0xcd/0x170 [ 5634.322699][ T253] do_syscall_64+0xc6/0x1e0 [ 5634.322699][ T253] [ 5634.324896][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5634.324896][ T253] netdev_get_by_index+0x5e/0x80 [ 5634.324896][ T253] fib6_nh_init+0x3d8/0x1580 [ 5634.324896][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5634.324896][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5634.324896][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5634.324896][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5634.324896][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5634.324896][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5634.324896][ T253] addrconf_dad_begin+0x310/0x670 [ 5634.324896][ T253] addrconf_dad_work+0x10b/0xab0 [ 5634.324896][ T253] process_one_work+0x84d/0x18a0 [ 5634.324896][ T253] worker_thread+0x587/0xd30 [ 5634.324896][ T253] kthread+0x28a/0x350 [ 5634.324896][ T253] ret_from_fork+0x31/0x70 [ 5634.324896][ T253] ret_from_fork_asm+0x1a/0x30 [ 5634.324896][ T253] [ 5634.327078][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5634.327078][ T253] netdev_get_by_index+0x5e/0x80 [ 5634.327078][ T253] fib6_nh_init+0x3d8/0x1580 [ 5634.327078][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5634.327078][ T253] ip6_route_add+0x1c/0x140 [ 5634.327078][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5634.327078][ T253] inet6_addr_add+0x4f8/0xa40 [ 5634.327078][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5634.327078][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5634.327078][ T253] netlink_rcv_skb+0x130/0x360 [ 5634.327078][ T253] netlink_unicast+0x449/0x710 [ 5634.327078][ T253] netlink_sendmsg+0x723/0xbe0 [ 5634.327078][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5634.327078][ T253] ___sys_sendmsg+0xee/0x170 [ 5634.327078][ T253] __sys_sendmsg+0xcd/0x170 [ 5634.327078][ T253] do_syscall_64+0xc6/0x1e0 [ 5634.327078][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5634.327078][ T253] [ 5634.329314][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5634.329314][ T253] netdev_get_by_index+0x5e/0x80 [ 5634.329314][ T253] fib6_nh_init+0x3d8/0x1580 [ 5634.329314][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5634.329314][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5634.329314][ T253] ipv6_add_addr+0x411/0x2000 [ 5634.329314][ T253] inet6_addr_add+0x30e/0xa40 [ 5634.329314][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5634.329314][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5634.329314][ T253] netlink_rcv_skb+0x130/0x360 [ 5634.329314][ T253] netlink_unicast+0x449/0x710 [ 5634.329314][ T253] netlink_sendmsg+0x723/0xbe0 [ 5634.329314][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5634.329314][ T253] ___sys_sendmsg+0xee/0x170 [ 5634.329314][ T253] __sys_sendmsg+0xcd/0x170 [ 5634.329314][ T253] do_syscall_64+0xc6/0x1e0 [ 5634.329314][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5634.329314][ T253] [ 5634.331551][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5634.331551][ T253] netdev_get_by_index+0x5e/0x80 [ 5634.331551][ T253] fib6_nh_init+0x3d8/0x1580 [ 5634.331551][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5634.331551][ T253] ip6_route_add+0x1c/0x140 [ 5634.331551][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5634.331551][ T253] addrconf_add_dev+0xe2/0x170 [ 5634.331551][ T253] inet6_addr_add+0x12f/0xa40 [ 5634.331551][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5634.331551][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5634.331551][ T253] netlink_rcv_skb+0x130/0x360 [ 5634.331551][ T253] netlink_unicast+0x449/0x710 [ 5634.331551][ T253] netlink_sendmsg+0x723/0xbe0 [ 5634.331551][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5634.331551][ T253] ___sys_sendmsg+0xee/0x170 [ 5634.331551][ T253] __sys_sendmsg+0xcd/0x170 [ 5634.331551][ T253] do_syscall_64+0xc6/0x1e0 [ 5634.331551][ T253] [ 5634.333854][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5634.333854][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5634.333854][ T253] ipv6_find_idev+0x102/0x170 [ 5634.333854][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5634.333854][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5634.333854][ T253] netlink_rcv_skb+0x130/0x360 [ 5634.333854][ T253] netlink_unicast+0x449/0x710 [ 5634.333854][ T253] netlink_sendmsg+0x723/0xbe0 [ 5634.333854][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5634.333854][ T253] ___sys_sendmsg+0xee/0x170 [ 5634.333854][ T253] __sys_sendmsg+0xcd/0x170 [ 5634.333854][ T253] do_syscall_64+0xc6/0x1e0 [ 5634.333854][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5634.333854][ T253] [ 5634.335950][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5634.335950][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5634.335950][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5634.335950][ T253] ipv6_find_idev+0x102/0x170 [ 5634.335950][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5634.335950][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5634.335950][ T253] netlink_rcv_skb+0x130/0x360 [ 5634.335950][ T253] netlink_unicast+0x449/0x710 [ 5634.335950][ T253] netlink_sendmsg+0x723/0xbe0 [ 5634.335950][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5634.335950][ T253] ___sys_sendmsg+0xee/0x170 [ 5634.335950][ T253] __sys_sendmsg+0xcd/0x170 [ 5634.335950][ T253] do_syscall_64+0xc6/0x1e0 [ 5634.335950][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5634.335950][ T253] [ 5644.586324][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5644.586785][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5644.586785][ T253] dst_init+0x84/0x4a0 [ 5644.586785][ T253] dst_alloc+0x97/0x150 [ 5644.586785][ T253] ip6_dst_alloc+0x23/0x90 [ 5644.586785][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5644.586785][ T253] ip6_pol_route+0x56f/0x840 [ 5644.586785][ T253] fib6_rule_lookup+0x334/0x630 [ 5644.586785][ T253] ip6_route_output_flags+0x259/0x480 [ 5644.586785][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5644.586785][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5644.586785][ T253] netlink_rcv_skb+0x130/0x360 [ 5644.586785][ T253] netlink_unicast+0x449/0x710 [ 5644.586785][ T253] netlink_sendmsg+0x723/0xbe0 [ 5644.586785][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5644.586785][ T253] ___sys_sendmsg+0xee/0x170 [ 5644.586785][ T253] __sys_sendmsg+0xcd/0x170 [ 5644.586785][ T253] do_syscall_64+0xc6/0x1e0 [ 5644.586785][ T253] [ 5644.588998][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5644.588998][ T253] netdev_get_by_index+0x5e/0x80 [ 5644.588998][ T253] fib6_nh_init+0x3d8/0x1580 [ 5644.588998][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5644.588998][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5644.588998][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5644.588998][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5644.588998][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5644.588998][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5644.588998][ T253] addrconf_dad_begin+0x310/0x670 [ 5644.588998][ T253] addrconf_dad_work+0x10b/0xab0 [ 5644.588998][ T253] process_one_work+0x84d/0x18a0 [ 5644.588998][ T253] worker_thread+0x587/0xd30 [ 5644.588998][ T253] kthread+0x28a/0x350 [ 5644.588998][ T253] ret_from_fork+0x31/0x70 [ 5644.588998][ T253] ret_from_fork_asm+0x1a/0x30 [ 5644.588998][ T253] [ 5644.591191][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5644.591191][ T253] netdev_get_by_index+0x5e/0x80 [ 5644.591191][ T253] fib6_nh_init+0x3d8/0x1580 [ 5644.591191][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5644.591191][ T253] ip6_route_add+0x1c/0x140 [ 5644.591191][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5644.591191][ T253] inet6_addr_add+0x4f8/0xa40 [ 5644.591191][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5644.591191][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5644.591191][ T253] netlink_rcv_skb+0x130/0x360 [ 5644.591191][ T253] netlink_unicast+0x449/0x710 [ 5644.591191][ T253] netlink_sendmsg+0x723/0xbe0 [ 5644.591191][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5644.591191][ T253] ___sys_sendmsg+0xee/0x170 [ 5644.591191][ T253] __sys_sendmsg+0xcd/0x170 [ 5644.591191][ T253] do_syscall_64+0xc6/0x1e0 [ 5644.591191][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5644.591191][ T253] [ 5644.593467][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5644.593467][ T253] netdev_get_by_index+0x5e/0x80 [ 5644.593467][ T253] fib6_nh_init+0x3d8/0x1580 [ 5644.593467][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5644.593467][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5644.593467][ T253] ipv6_add_addr+0x411/0x2000 [ 5644.593467][ T253] inet6_addr_add+0x30e/0xa40 [ 5644.593467][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5644.593467][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5644.593467][ T253] netlink_rcv_skb+0x130/0x360 [ 5644.593467][ T253] netlink_unicast+0x449/0x710 [ 5644.593467][ T253] netlink_sendmsg+0x723/0xbe0 [ 5644.593467][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5644.593467][ T253] ___sys_sendmsg+0xee/0x170 [ 5644.593467][ T253] __sys_sendmsg+0xcd/0x170 [ 5644.593467][ T253] do_syscall_64+0xc6/0x1e0 [ 5644.593467][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5644.593467][ T253] [ 5644.595755][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5644.595755][ T253] netdev_get_by_index+0x5e/0x80 [ 5644.595755][ T253] fib6_nh_init+0x3d8/0x1580 [ 5644.595755][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5644.595755][ T253] ip6_route_add+0x1c/0x140 [ 5644.595755][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5644.595755][ T253] addrconf_add_dev+0xe2/0x170 [ 5644.595755][ T253] inet6_addr_add+0x12f/0xa40 [ 5644.595755][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5644.595755][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5644.595755][ T253] netlink_rcv_skb+0x130/0x360 [ 5644.595755][ T253] netlink_unicast+0x449/0x710 [ 5644.595755][ T253] netlink_sendmsg+0x723/0xbe0 [ 5644.595755][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5644.595755][ T253] ___sys_sendmsg+0xee/0x170 [ 5644.595755][ T253] __sys_sendmsg+0xcd/0x170 [ 5644.595755][ T253] do_syscall_64+0xc6/0x1e0 [ 5644.595755][ T253] [ 5644.597980][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5644.597980][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5644.597980][ T253] ipv6_find_idev+0x102/0x170 [ 5644.597980][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5644.597980][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5644.597980][ T253] netlink_rcv_skb+0x130/0x360 [ 5644.597980][ T253] netlink_unicast+0x449/0x710 [ 5644.597980][ T253] netlink_sendmsg+0x723/0xbe0 [ 5644.597980][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5644.597980][ T253] ___sys_sendmsg+0xee/0x170 [ 5644.597980][ T253] __sys_sendmsg+0xcd/0x170 [ 5644.597980][ T253] do_syscall_64+0xc6/0x1e0 [ 5644.597980][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5644.597980][ T253] [ 5644.599745][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5644.599745][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5644.599745][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5644.599745][ T253] ipv6_find_idev+0x102/0x170 [ 5644.599745][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5644.599745][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5644.599745][ T253] netlink_rcv_skb+0x130/0x360 [ 5644.599745][ T253] netlink_unicast+0x449/0x710 [ 5644.599745][ T253] netlink_sendmsg+0x723/0xbe0 [ 5644.599745][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5644.599745][ T253] ___sys_sendmsg+0xee/0x170 [ 5644.599745][ T253] __sys_sendmsg+0xcd/0x170 [ 5644.599745][ T253] do_syscall_64+0xc6/0x1e0 [ 5644.599745][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5644.599745][ T253] [ 5654.850335][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5654.850770][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5654.850770][ T253] dst_init+0x84/0x4a0 [ 5654.850770][ T253] dst_alloc+0x97/0x150 [ 5654.850770][ T253] ip6_dst_alloc+0x23/0x90 [ 5654.850770][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5654.850770][ T253] ip6_pol_route+0x56f/0x840 [ 5654.850770][ T253] fib6_rule_lookup+0x334/0x630 [ 5654.850770][ T253] ip6_route_output_flags+0x259/0x480 [ 5654.850770][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5654.850770][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5654.850770][ T253] netlink_rcv_skb+0x130/0x360 [ 5654.850770][ T253] netlink_unicast+0x449/0x710 [ 5654.850770][ T253] netlink_sendmsg+0x723/0xbe0 [ 5654.850770][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5654.850770][ T253] ___sys_sendmsg+0xee/0x170 [ 5654.850770][ T253] __sys_sendmsg+0xcd/0x170 [ 5654.850770][ T253] do_syscall_64+0xc6/0x1e0 [ 5654.850770][ T253] [ 5654.852984][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5654.852984][ T253] netdev_get_by_index+0x5e/0x80 [ 5654.852984][ T253] fib6_nh_init+0x3d8/0x1580 [ 5654.852984][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5654.852984][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5654.852984][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5654.852984][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5654.852984][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5654.852984][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5654.852984][ T253] addrconf_dad_begin+0x310/0x670 [ 5654.852984][ T253] addrconf_dad_work+0x10b/0xab0 [ 5654.852984][ T253] process_one_work+0x84d/0x18a0 [ 5654.852984][ T253] worker_thread+0x587/0xd30 [ 5654.852984][ T253] kthread+0x28a/0x350 [ 5654.852984][ T253] ret_from_fork+0x31/0x70 [ 5654.852984][ T253] ret_from_fork_asm+0x1a/0x30 [ 5654.852984][ T253] [ 5654.855151][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5654.855151][ T253] netdev_get_by_index+0x5e/0x80 [ 5654.855151][ T253] fib6_nh_init+0x3d8/0x1580 [ 5654.855151][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5654.855151][ T253] ip6_route_add+0x1c/0x140 [ 5654.855151][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5654.855151][ T253] inet6_addr_add+0x4f8/0xa40 [ 5654.855151][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5654.855151][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5654.855151][ T253] netlink_rcv_skb+0x130/0x360 [ 5654.855151][ T253] netlink_unicast+0x449/0x710 [ 5654.855151][ T253] netlink_sendmsg+0x723/0xbe0 [ 5654.855151][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5654.855151][ T253] ___sys_sendmsg+0xee/0x170 [ 5654.855151][ T253] __sys_sendmsg+0xcd/0x170 [ 5654.855151][ T253] do_syscall_64+0xc6/0x1e0 [ 5654.855151][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5654.855151][ T253] [ 5654.857391][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5654.857391][ T253] netdev_get_by_index+0x5e/0x80 [ 5654.857391][ T253] fib6_nh_init+0x3d8/0x1580 [ 5654.857391][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5654.857391][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5654.857391][ T253] ipv6_add_addr+0x411/0x2000 [ 5654.857391][ T253] inet6_addr_add+0x30e/0xa40 [ 5654.857391][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5654.857391][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5654.857391][ T253] netlink_rcv_skb+0x130/0x360 [ 5654.857391][ T253] netlink_unicast+0x449/0x710 [ 5654.857391][ T253] netlink_sendmsg+0x723/0xbe0 [ 5654.857391][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5654.857391][ T253] ___sys_sendmsg+0xee/0x170 [ 5654.857391][ T253] __sys_sendmsg+0xcd/0x170 [ 5654.857391][ T253] do_syscall_64+0xc6/0x1e0 [ 5654.857391][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5654.857391][ T253] [ 5654.859633][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5654.859633][ T253] netdev_get_by_index+0x5e/0x80 [ 5654.859633][ T253] fib6_nh_init+0x3d8/0x1580 [ 5654.859633][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5654.859633][ T253] ip6_route_add+0x1c/0x140 [ 5654.859633][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5654.859633][ T253] addrconf_add_dev+0xe2/0x170 [ 5654.859633][ T253] inet6_addr_add+0x12f/0xa40 [ 5654.859633][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5654.859633][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5654.859633][ T253] netlink_rcv_skb+0x130/0x360 [ 5654.859633][ T253] netlink_unicast+0x449/0x710 [ 5654.859633][ T253] netlink_sendmsg+0x723/0xbe0 [ 5654.859633][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5654.859633][ T253] ___sys_sendmsg+0xee/0x170 [ 5654.859633][ T253] __sys_sendmsg+0xcd/0x170 [ 5654.859633][ T253] do_syscall_64+0xc6/0x1e0 [ 5654.859633][ T253] [ 5654.861842][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5654.861842][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5654.861842][ T253] ipv6_find_idev+0x102/0x170 [ 5654.861842][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5654.861842][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5654.861842][ T253] netlink_rcv_skb+0x130/0x360 [ 5654.861842][ T253] netlink_unicast+0x449/0x710 [ 5654.861842][ T253] netlink_sendmsg+0x723/0xbe0 [ 5654.861842][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5654.861842][ T253] ___sys_sendmsg+0xee/0x170 [ 5654.861842][ T253] __sys_sendmsg+0xcd/0x170 [ 5654.861842][ T253] do_syscall_64+0xc6/0x1e0 [ 5654.861842][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5654.861842][ T253] [ 5654.863595][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5654.863595][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5654.863595][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5654.863595][ T253] ipv6_find_idev+0x102/0x170 [ 5654.863595][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5654.863595][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5654.863595][ T253] netlink_rcv_skb+0x130/0x360 [ 5654.863595][ T253] netlink_unicast+0x449/0x710 [ 5654.863595][ T253] netlink_sendmsg+0x723/0xbe0 [ 5654.863595][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5654.863595][ T253] ___sys_sendmsg+0xee/0x170 [ 5654.863595][ T253] __sys_sendmsg+0xcd/0x170 [ 5654.863595][ T253] do_syscall_64+0xc6/0x1e0 [ 5654.863595][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5654.863595][ T253] [ 5665.114283][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5665.114700][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5665.114700][ T253] dst_init+0x84/0x4a0 [ 5665.114700][ T253] dst_alloc+0x97/0x150 [ 5665.114700][ T253] ip6_dst_alloc+0x23/0x90 [ 5665.114700][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5665.114700][ T253] ip6_pol_route+0x56f/0x840 [ 5665.114700][ T253] fib6_rule_lookup+0x334/0x630 [ 5665.114700][ T253] ip6_route_output_flags+0x259/0x480 [ 5665.114700][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5665.114700][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5665.114700][ T253] netlink_rcv_skb+0x130/0x360 [ 5665.114700][ T253] netlink_unicast+0x449/0x710 [ 5665.114700][ T253] netlink_sendmsg+0x723/0xbe0 [ 5665.114700][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5665.114700][ T253] ___sys_sendmsg+0xee/0x170 [ 5665.114700][ T253] __sys_sendmsg+0xcd/0x170 [ 5665.114700][ T253] do_syscall_64+0xc6/0x1e0 [ 5665.114700][ T253] [ 5665.116897][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5665.116897][ T253] netdev_get_by_index+0x5e/0x80 [ 5665.116897][ T253] fib6_nh_init+0x3d8/0x1580 [ 5665.116897][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5665.116897][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5665.116897][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5665.116897][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5665.116897][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5665.116897][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5665.116897][ T253] addrconf_dad_begin+0x310/0x670 [ 5665.116897][ T253] addrconf_dad_work+0x10b/0xab0 [ 5665.116897][ T253] process_one_work+0x84d/0x18a0 [ 5665.116897][ T253] worker_thread+0x587/0xd30 [ 5665.116897][ T253] kthread+0x28a/0x350 [ 5665.116897][ T253] ret_from_fork+0x31/0x70 [ 5665.116897][ T253] ret_from_fork_asm+0x1a/0x30 [ 5665.116897][ T253] [ 5665.119048][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5665.119048][ T253] netdev_get_by_index+0x5e/0x80 [ 5665.119048][ T253] fib6_nh_init+0x3d8/0x1580 [ 5665.119048][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5665.119048][ T253] ip6_route_add+0x1c/0x140 [ 5665.119048][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5665.119048][ T253] inet6_addr_add+0x4f8/0xa40 [ 5665.119048][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5665.119048][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5665.119048][ T253] netlink_rcv_skb+0x130/0x360 [ 5665.119048][ T253] netlink_unicast+0x449/0x710 [ 5665.119048][ T253] netlink_sendmsg+0x723/0xbe0 [ 5665.119048][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5665.119048][ T253] ___sys_sendmsg+0xee/0x170 [ 5665.119048][ T253] __sys_sendmsg+0xcd/0x170 [ 5665.119048][ T253] do_syscall_64+0xc6/0x1e0 [ 5665.119048][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5665.119048][ T253] [ 5665.121816][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5665.121816][ T253] netdev_get_by_index+0x5e/0x80 [ 5665.121816][ T253] fib6_nh_init+0x3d8/0x1580 [ 5665.121816][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5665.121816][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5665.121816][ T253] ipv6_add_addr+0x411/0x2000 [ 5665.121816][ T253] inet6_addr_add+0x30e/0xa40 [ 5665.121816][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5665.121816][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5665.121816][ T253] netlink_rcv_skb+0x130/0x360 [ 5665.121816][ T253] netlink_unicast+0x449/0x710 [ 5665.121816][ T253] netlink_sendmsg+0x723/0xbe0 [ 5665.121816][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5665.121816][ T253] ___sys_sendmsg+0xee/0x170 [ 5665.121816][ T253] __sys_sendmsg+0xcd/0x170 [ 5665.121816][ T253] do_syscall_64+0xc6/0x1e0 [ 5665.121816][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5665.121816][ T253] [ 5665.124085][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5665.124085][ T253] netdev_get_by_index+0x5e/0x80 [ 5665.124085][ T253] fib6_nh_init+0x3d8/0x1580 [ 5665.124085][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5665.124085][ T253] ip6_route_add+0x1c/0x140 [ 5665.124085][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5665.124085][ T253] addrconf_add_dev+0xe2/0x170 [ 5665.124085][ T253] inet6_addr_add+0x12f/0xa40 [ 5665.124085][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5665.124085][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5665.124085][ T253] netlink_rcv_skb+0x130/0x360 [ 5665.124085][ T253] netlink_unicast+0x449/0x710 [ 5665.124085][ T253] netlink_sendmsg+0x723/0xbe0 [ 5665.124085][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5665.124085][ T253] ___sys_sendmsg+0xee/0x170 [ 5665.124085][ T253] __sys_sendmsg+0xcd/0x170 [ 5665.124085][ T253] do_syscall_64+0xc6/0x1e0 [ 5665.124085][ T253] [ 5665.126285][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5665.126285][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5665.126285][ T253] ipv6_find_idev+0x102/0x170 [ 5665.126285][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5665.126285][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5665.126285][ T253] netlink_rcv_skb+0x130/0x360 [ 5665.126285][ T253] netlink_unicast+0x449/0x710 [ 5665.126285][ T253] netlink_sendmsg+0x723/0xbe0 [ 5665.126285][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5665.126285][ T253] ___sys_sendmsg+0xee/0x170 [ 5665.126285][ T253] __sys_sendmsg+0xcd/0x170 [ 5665.126285][ T253] do_syscall_64+0xc6/0x1e0 [ 5665.126285][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5665.126285][ T253] [ 5665.128010][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5665.128010][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5665.128010][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5665.128010][ T253] ipv6_find_idev+0x102/0x170 [ 5665.128010][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5665.128010][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5665.128010][ T253] netlink_rcv_skb+0x130/0x360 [ 5665.128010][ T253] netlink_unicast+0x449/0x710 [ 5665.128010][ T253] netlink_sendmsg+0x723/0xbe0 [ 5665.128010][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5665.128010][ T253] ___sys_sendmsg+0xee/0x170 [ 5665.128010][ T253] __sys_sendmsg+0xcd/0x170 [ 5665.128010][ T253] do_syscall_64+0xc6/0x1e0 [ 5665.128010][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5665.128010][ T253] [ 5675.338392][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5675.338890][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5675.338890][ T253] dst_init+0x84/0x4a0 [ 5675.338890][ T253] dst_alloc+0x97/0x150 [ 5675.338890][ T253] ip6_dst_alloc+0x23/0x90 [ 5675.338890][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5675.338890][ T253] ip6_pol_route+0x56f/0x840 [ 5675.338890][ T253] fib6_rule_lookup+0x334/0x630 [ 5675.338890][ T253] ip6_route_output_flags+0x259/0x480 [ 5675.338890][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5675.338890][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5675.338890][ T253] netlink_rcv_skb+0x130/0x360 [ 5675.338890][ T253] netlink_unicast+0x449/0x710 [ 5675.338890][ T253] netlink_sendmsg+0x723/0xbe0 [ 5675.338890][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5675.338890][ T253] ___sys_sendmsg+0xee/0x170 [ 5675.338890][ T253] __sys_sendmsg+0xcd/0x170 [ 5675.338890][ T253] do_syscall_64+0xc6/0x1e0 [ 5675.338890][ T253] [ 5675.341545][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5675.341545][ T253] netdev_get_by_index+0x5e/0x80 [ 5675.341545][ T253] fib6_nh_init+0x3d8/0x1580 [ 5675.341545][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5675.341545][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5675.341545][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5675.341545][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5675.341545][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5675.341545][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5675.341545][ T253] addrconf_dad_begin+0x310/0x670 [ 5675.341545][ T253] addrconf_dad_work+0x10b/0xab0 [ 5675.341545][ T253] process_one_work+0x84d/0x18a0 [ 5675.341545][ T253] worker_thread+0x587/0xd30 [ 5675.341545][ T253] kthread+0x28a/0x350 [ 5675.341545][ T253] ret_from_fork+0x31/0x70 [ 5675.341545][ T253] ret_from_fork_asm+0x1a/0x30 [ 5675.341545][ T253] [ 5675.344168][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5675.344168][ T253] netdev_get_by_index+0x5e/0x80 [ 5675.344168][ T253] fib6_nh_init+0x3d8/0x1580 [ 5675.344168][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5675.344168][ T253] ip6_route_add+0x1c/0x140 [ 5675.344168][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5675.344168][ T253] inet6_addr_add+0x4f8/0xa40 [ 5675.344168][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5675.344168][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5675.344168][ T253] netlink_rcv_skb+0x130/0x360 [ 5675.344168][ T253] netlink_unicast+0x449/0x710 [ 5675.344168][ T253] netlink_sendmsg+0x723/0xbe0 [ 5675.344168][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5675.344168][ T253] ___sys_sendmsg+0xee/0x170 [ 5675.344168][ T253] __sys_sendmsg+0xcd/0x170 [ 5675.344168][ T253] do_syscall_64+0xc6/0x1e0 [ 5675.344168][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5675.344168][ T253] [ 5675.346892][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5675.346892][ T253] netdev_get_by_index+0x5e/0x80 [ 5675.346892][ T253] fib6_nh_init+0x3d8/0x1580 [ 5675.346892][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5675.346892][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5675.346892][ T253] ipv6_add_addr+0x411/0x2000 [ 5675.346892][ T253] inet6_addr_add+0x30e/0xa40 [ 5675.346892][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5675.346892][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5675.346892][ T253] netlink_rcv_skb+0x130/0x360 [ 5675.346892][ T253] netlink_unicast+0x449/0x710 [ 5675.346892][ T253] netlink_sendmsg+0x723/0xbe0 [ 5675.346892][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5675.346892][ T253] ___sys_sendmsg+0xee/0x170 [ 5675.346892][ T253] __sys_sendmsg+0xcd/0x170 [ 5675.346892][ T253] do_syscall_64+0xc6/0x1e0 [ 5675.346892][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5675.346892][ T253] [ 5675.349610][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5675.349610][ T253] netdev_get_by_index+0x5e/0x80 [ 5675.349610][ T253] fib6_nh_init+0x3d8/0x1580 [ 5675.349610][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5675.349610][ T253] ip6_route_add+0x1c/0x140 [ 5675.349610][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5675.349610][ T253] addrconf_add_dev+0xe2/0x170 [ 5675.349610][ T253] inet6_addr_add+0x12f/0xa40 [ 5675.349610][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5675.349610][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5675.349610][ T253] netlink_rcv_skb+0x130/0x360 [ 5675.349610][ T253] netlink_unicast+0x449/0x710 [ 5675.349610][ T253] netlink_sendmsg+0x723/0xbe0 [ 5675.349610][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5675.349610][ T253] ___sys_sendmsg+0xee/0x170 [ 5675.349610][ T253] __sys_sendmsg+0xcd/0x170 [ 5675.349610][ T253] do_syscall_64+0xc6/0x1e0 [ 5675.349610][ T253] [ 5675.352280][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5675.352280][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5675.352280][ T253] ipv6_find_idev+0x102/0x170 [ 5675.352280][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5675.352280][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5675.352280][ T253] netlink_rcv_skb+0x130/0x360 [ 5675.352280][ T253] netlink_unicast+0x449/0x710 [ 5675.352280][ T253] netlink_sendmsg+0x723/0xbe0 [ 5675.352280][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5675.352280][ T253] ___sys_sendmsg+0xee/0x170 [ 5675.352280][ T253] __sys_sendmsg+0xcd/0x170 [ 5675.352280][ T253] do_syscall_64+0xc6/0x1e0 [ 5675.352280][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5675.352280][ T253] [ 5675.354380][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5675.354380][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5675.354380][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5675.354380][ T253] ipv6_find_idev+0x102/0x170 [ 5675.354380][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5675.354380][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5675.354380][ T253] netlink_rcv_skb+0x130/0x360 [ 5675.354380][ T253] netlink_unicast+0x449/0x710 [ 5675.354380][ T253] netlink_sendmsg+0x723/0xbe0 [ 5675.354380][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5675.354380][ T253] ___sys_sendmsg+0xee/0x170 [ 5675.354380][ T253] __sys_sendmsg+0xcd/0x170 [ 5675.354380][ T253] do_syscall_64+0xc6/0x1e0 [ 5675.354380][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5675.354380][ T253] [ 5685.410326][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5685.410742][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5685.410742][ T253] dst_init+0x84/0x4a0 [ 5685.410742][ T253] dst_alloc+0x97/0x150 [ 5685.410742][ T253] ip6_dst_alloc+0x23/0x90 [ 5685.410742][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5685.410742][ T253] ip6_pol_route+0x56f/0x840 [ 5685.410742][ T253] fib6_rule_lookup+0x334/0x630 [ 5685.410742][ T253] ip6_route_output_flags+0x259/0x480 [ 5685.410742][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5685.410742][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5685.410742][ T253] netlink_rcv_skb+0x130/0x360 [ 5685.410742][ T253] netlink_unicast+0x449/0x710 [ 5685.410742][ T253] netlink_sendmsg+0x723/0xbe0 [ 5685.410742][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5685.410742][ T253] ___sys_sendmsg+0xee/0x170 [ 5685.410742][ T253] __sys_sendmsg+0xcd/0x170 [ 5685.410742][ T253] do_syscall_64+0xc6/0x1e0 [ 5685.410742][ T253] [ 5685.412934][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5685.412934][ T253] netdev_get_by_index+0x5e/0x80 [ 5685.412934][ T253] fib6_nh_init+0x3d8/0x1580 [ 5685.412934][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5685.412934][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5685.412934][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5685.412934][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5685.412934][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5685.412934][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5685.412934][ T253] addrconf_dad_begin+0x310/0x670 [ 5685.412934][ T253] addrconf_dad_work+0x10b/0xab0 [ 5685.412934][ T253] process_one_work+0x84d/0x18a0 [ 5685.412934][ T253] worker_thread+0x587/0xd30 [ 5685.412934][ T253] kthread+0x28a/0x350 [ 5685.412934][ T253] ret_from_fork+0x31/0x70 [ 5685.412934][ T253] ret_from_fork_asm+0x1a/0x30 [ 5685.412934][ T253] [ 5685.415102][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5685.415102][ T253] netdev_get_by_index+0x5e/0x80 [ 5685.415102][ T253] fib6_nh_init+0x3d8/0x1580 [ 5685.415102][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5685.415102][ T253] ip6_route_add+0x1c/0x140 [ 5685.415102][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5685.415102][ T253] inet6_addr_add+0x4f8/0xa40 [ 5685.415102][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5685.415102][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5685.415102][ T253] netlink_rcv_skb+0x130/0x360 [ 5685.415102][ T253] netlink_unicast+0x449/0x710 [ 5685.415102][ T253] netlink_sendmsg+0x723/0xbe0 [ 5685.415102][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5685.415102][ T253] ___sys_sendmsg+0xee/0x170 [ 5685.415102][ T253] __sys_sendmsg+0xcd/0x170 [ 5685.415102][ T253] do_syscall_64+0xc6/0x1e0 [ 5685.415102][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5685.415102][ T253] [ 5685.417347][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5685.417347][ T253] netdev_get_by_index+0x5e/0x80 [ 5685.417347][ T253] fib6_nh_init+0x3d8/0x1580 [ 5685.417347][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5685.417347][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5685.417347][ T253] ipv6_add_addr+0x411/0x2000 [ 5685.417347][ T253] inet6_addr_add+0x30e/0xa40 [ 5685.417347][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5685.417347][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5685.417347][ T253] netlink_rcv_skb+0x130/0x360 [ 5685.417347][ T253] netlink_unicast+0x449/0x710 [ 5685.417347][ T253] netlink_sendmsg+0x723/0xbe0 [ 5685.417347][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5685.417347][ T253] ___sys_sendmsg+0xee/0x170 [ 5685.417347][ T253] __sys_sendmsg+0xcd/0x170 [ 5685.417347][ T253] do_syscall_64+0xc6/0x1e0 [ 5685.417347][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5685.417347][ T253] [ 5685.419586][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5685.419586][ T253] netdev_get_by_index+0x5e/0x80 [ 5685.419586][ T253] fib6_nh_init+0x3d8/0x1580 [ 5685.419586][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5685.419586][ T253] ip6_route_add+0x1c/0x140 [ 5685.419586][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5685.419586][ T253] addrconf_add_dev+0xe2/0x170 [ 5685.419586][ T253] inet6_addr_add+0x12f/0xa40 [ 5685.419586][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5685.419586][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5685.419586][ T253] netlink_rcv_skb+0x130/0x360 [ 5685.419586][ T253] netlink_unicast+0x449/0x710 [ 5685.419586][ T253] netlink_sendmsg+0x723/0xbe0 [ 5685.419586][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5685.419586][ T253] ___sys_sendmsg+0xee/0x170 [ 5685.419586][ T253] __sys_sendmsg+0xcd/0x170 [ 5685.419586][ T253] do_syscall_64+0xc6/0x1e0 [ 5685.419586][ T253] [ 5685.422178][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5685.422178][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5685.422178][ T253] ipv6_find_idev+0x102/0x170 [ 5685.422178][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5685.422178][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5685.422178][ T253] netlink_rcv_skb+0x130/0x360 [ 5685.422178][ T253] netlink_unicast+0x449/0x710 [ 5685.422178][ T253] netlink_sendmsg+0x723/0xbe0 [ 5685.422178][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5685.422178][ T253] ___sys_sendmsg+0xee/0x170 [ 5685.422178][ T253] __sys_sendmsg+0xcd/0x170 [ 5685.422178][ T253] do_syscall_64+0xc6/0x1e0 [ 5685.422178][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5685.422178][ T253] [ 5685.423927][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5685.423927][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5685.423927][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5685.423927][ T253] ipv6_find_idev+0x102/0x170 [ 5685.423927][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5685.423927][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5685.423927][ T253] netlink_rcv_skb+0x130/0x360 [ 5685.423927][ T253] netlink_unicast+0x449/0x710 [ 5685.423927][ T253] netlink_sendmsg+0x723/0xbe0 [ 5685.423927][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5685.423927][ T253] ___sys_sendmsg+0xee/0x170 [ 5685.423927][ T253] __sys_sendmsg+0xcd/0x170 [ 5685.423927][ T253] do_syscall_64+0xc6/0x1e0 [ 5685.423927][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5685.423927][ T253] [ 5695.674325][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5695.674748][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5695.674748][ T253] dst_init+0x84/0x4a0 [ 5695.674748][ T253] dst_alloc+0x97/0x150 [ 5695.674748][ T253] ip6_dst_alloc+0x23/0x90 [ 5695.674748][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5695.674748][ T253] ip6_pol_route+0x56f/0x840 [ 5695.674748][ T253] fib6_rule_lookup+0x334/0x630 [ 5695.674748][ T253] ip6_route_output_flags+0x259/0x480 [ 5695.674748][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5695.674748][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5695.674748][ T253] netlink_rcv_skb+0x130/0x360 [ 5695.674748][ T253] netlink_unicast+0x449/0x710 [ 5695.674748][ T253] netlink_sendmsg+0x723/0xbe0 [ 5695.674748][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5695.674748][ T253] ___sys_sendmsg+0xee/0x170 [ 5695.674748][ T253] __sys_sendmsg+0xcd/0x170 [ 5695.674748][ T253] do_syscall_64+0xc6/0x1e0 [ 5695.674748][ T253] [ 5695.676949][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5695.676949][ T253] netdev_get_by_index+0x5e/0x80 [ 5695.676949][ T253] fib6_nh_init+0x3d8/0x1580 [ 5695.676949][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5695.676949][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5695.676949][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5695.676949][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5695.676949][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5695.676949][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5695.676949][ T253] addrconf_dad_begin+0x310/0x670 [ 5695.676949][ T253] addrconf_dad_work+0x10b/0xab0 [ 5695.676949][ T253] process_one_work+0x84d/0x18a0 [ 5695.676949][ T253] worker_thread+0x587/0xd30 [ 5695.676949][ T253] kthread+0x28a/0x350 [ 5695.676949][ T253] ret_from_fork+0x31/0x70 [ 5695.676949][ T253] ret_from_fork_asm+0x1a/0x30 [ 5695.676949][ T253] [ 5695.679105][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5695.679105][ T253] netdev_get_by_index+0x5e/0x80 [ 5695.679105][ T253] fib6_nh_init+0x3d8/0x1580 [ 5695.679105][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5695.679105][ T253] ip6_route_add+0x1c/0x140 [ 5695.679105][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5695.679105][ T253] inet6_addr_add+0x4f8/0xa40 [ 5695.679105][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5695.679105][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5695.679105][ T253] netlink_rcv_skb+0x130/0x360 [ 5695.679105][ T253] netlink_unicast+0x449/0x710 [ 5695.679105][ T253] netlink_sendmsg+0x723/0xbe0 [ 5695.679105][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5695.679105][ T253] ___sys_sendmsg+0xee/0x170 [ 5695.679105][ T253] __sys_sendmsg+0xcd/0x170 [ 5695.679105][ T253] do_syscall_64+0xc6/0x1e0 [ 5695.679105][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5695.679105][ T253] [ 5695.681351][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5695.681351][ T253] netdev_get_by_index+0x5e/0x80 [ 5695.681351][ T253] fib6_nh_init+0x3d8/0x1580 [ 5695.681351][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5695.681351][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5695.681351][ T253] ipv6_add_addr+0x411/0x2000 [ 5695.681351][ T253] inet6_addr_add+0x30e/0xa40 [ 5695.681351][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5695.681351][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5695.681351][ T253] netlink_rcv_skb+0x130/0x360 [ 5695.681351][ T253] netlink_unicast+0x449/0x710 [ 5695.681351][ T253] netlink_sendmsg+0x723/0xbe0 [ 5695.681351][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5695.681351][ T253] ___sys_sendmsg+0xee/0x170 [ 5695.681351][ T253] __sys_sendmsg+0xcd/0x170 [ 5695.681351][ T253] do_syscall_64+0xc6/0x1e0 [ 5695.681351][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5695.681351][ T253] [ 5695.683606][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5695.683606][ T253] netdev_get_by_index+0x5e/0x80 [ 5695.683606][ T253] fib6_nh_init+0x3d8/0x1580 [ 5695.683606][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5695.683606][ T253] ip6_route_add+0x1c/0x140 [ 5695.683606][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5695.683606][ T253] addrconf_add_dev+0xe2/0x170 [ 5695.683606][ T253] inet6_addr_add+0x12f/0xa40 [ 5695.683606][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5695.683606][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5695.683606][ T253] netlink_rcv_skb+0x130/0x360 [ 5695.683606][ T253] netlink_unicast+0x449/0x710 [ 5695.683606][ T253] netlink_sendmsg+0x723/0xbe0 [ 5695.683606][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5695.683606][ T253] ___sys_sendmsg+0xee/0x170 [ 5695.683606][ T253] __sys_sendmsg+0xcd/0x170 [ 5695.683606][ T253] do_syscall_64+0xc6/0x1e0 [ 5695.683606][ T253] [ 5695.685815][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5695.685815][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5695.685815][ T253] ipv6_find_idev+0x102/0x170 [ 5695.685815][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5695.685815][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5695.685815][ T253] netlink_rcv_skb+0x130/0x360 [ 5695.685815][ T253] netlink_unicast+0x449/0x710 [ 5695.685815][ T253] netlink_sendmsg+0x723/0xbe0 [ 5695.685815][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5695.685815][ T253] ___sys_sendmsg+0xee/0x170 [ 5695.685815][ T253] __sys_sendmsg+0xcd/0x170 [ 5695.685815][ T253] do_syscall_64+0xc6/0x1e0 [ 5695.685815][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5695.685815][ T253] [ 5695.687544][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5695.687544][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5695.687544][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5695.687544][ T253] ipv6_find_idev+0x102/0x170 [ 5695.687544][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5695.687544][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5695.687544][ T253] netlink_rcv_skb+0x130/0x360 [ 5695.687544][ T253] netlink_unicast+0x449/0x710 [ 5695.687544][ T253] netlink_sendmsg+0x723/0xbe0 [ 5695.687544][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5695.687544][ T253] ___sys_sendmsg+0xee/0x170 [ 5695.687544][ T253] __sys_sendmsg+0xcd/0x170 [ 5695.687544][ T253] do_syscall_64+0xc6/0x1e0 [ 5695.687544][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5695.687544][ T253] [ 5705.938306][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5705.938716][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5705.938716][ T253] dst_init+0x84/0x4a0 [ 5705.938716][ T253] dst_alloc+0x97/0x150 [ 5705.938716][ T253] ip6_dst_alloc+0x23/0x90 [ 5705.938716][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5705.938716][ T253] ip6_pol_route+0x56f/0x840 [ 5705.938716][ T253] fib6_rule_lookup+0x334/0x630 [ 5705.938716][ T253] ip6_route_output_flags+0x259/0x480 [ 5705.938716][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5705.938716][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5705.938716][ T253] netlink_rcv_skb+0x130/0x360 [ 5705.938716][ T253] netlink_unicast+0x449/0x710 [ 5705.938716][ T253] netlink_sendmsg+0x723/0xbe0 [ 5705.938716][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5705.938716][ T253] ___sys_sendmsg+0xee/0x170 [ 5705.938716][ T253] __sys_sendmsg+0xcd/0x170 [ 5705.938716][ T253] do_syscall_64+0xc6/0x1e0 [ 5705.938716][ T253] [ 5705.940913][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5705.940913][ T253] netdev_get_by_index+0x5e/0x80 [ 5705.940913][ T253] fib6_nh_init+0x3d8/0x1580 [ 5705.940913][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5705.940913][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5705.940913][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5705.940913][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5705.940913][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5705.940913][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5705.940913][ T253] addrconf_dad_begin+0x310/0x670 [ 5705.940913][ T253] addrconf_dad_work+0x10b/0xab0 [ 5705.940913][ T253] process_one_work+0x84d/0x18a0 [ 5705.940913][ T253] worker_thread+0x587/0xd30 [ 5705.940913][ T253] kthread+0x28a/0x350 [ 5705.940913][ T253] ret_from_fork+0x31/0x70 [ 5705.940913][ T253] ret_from_fork_asm+0x1a/0x30 [ 5705.940913][ T253] [ 5705.943075][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5705.943075][ T253] netdev_get_by_index+0x5e/0x80 [ 5705.943075][ T253] fib6_nh_init+0x3d8/0x1580 [ 5705.943075][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5705.943075][ T253] ip6_route_add+0x1c/0x140 [ 5705.943075][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5705.943075][ T253] inet6_addr_add+0x4f8/0xa40 [ 5705.943075][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5705.943075][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5705.943075][ T253] netlink_rcv_skb+0x130/0x360 [ 5705.943075][ T253] netlink_unicast+0x449/0x710 [ 5705.943075][ T253] netlink_sendmsg+0x723/0xbe0 [ 5705.943075][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5705.943075][ T253] ___sys_sendmsg+0xee/0x170 [ 5705.943075][ T253] __sys_sendmsg+0xcd/0x170 [ 5705.943075][ T253] do_syscall_64+0xc6/0x1e0 [ 5705.943075][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5705.943075][ T253] [ 5705.945329][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5705.945329][ T253] netdev_get_by_index+0x5e/0x80 [ 5705.945329][ T253] fib6_nh_init+0x3d8/0x1580 [ 5705.945329][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5705.945329][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5705.945329][ T253] ipv6_add_addr+0x411/0x2000 [ 5705.945329][ T253] inet6_addr_add+0x30e/0xa40 [ 5705.945329][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5705.945329][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5705.945329][ T253] netlink_rcv_skb+0x130/0x360 [ 5705.945329][ T253] netlink_unicast+0x449/0x710 [ 5705.945329][ T253] netlink_sendmsg+0x723/0xbe0 [ 5705.945329][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5705.945329][ T253] ___sys_sendmsg+0xee/0x170 [ 5705.945329][ T253] __sys_sendmsg+0xcd/0x170 [ 5705.945329][ T253] do_syscall_64+0xc6/0x1e0 [ 5705.945329][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5705.945329][ T253] [ 5705.947579][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5705.947579][ T253] netdev_get_by_index+0x5e/0x80 [ 5705.947579][ T253] fib6_nh_init+0x3d8/0x1580 [ 5705.947579][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5705.947579][ T253] ip6_route_add+0x1c/0x140 [ 5705.947579][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5705.947579][ T253] addrconf_add_dev+0xe2/0x170 [ 5705.947579][ T253] inet6_addr_add+0x12f/0xa40 [ 5705.947579][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5705.947579][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5705.947579][ T253] netlink_rcv_skb+0x130/0x360 [ 5705.947579][ T253] netlink_unicast+0x449/0x710 [ 5705.947579][ T253] netlink_sendmsg+0x723/0xbe0 [ 5705.947579][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5705.947579][ T253] ___sys_sendmsg+0xee/0x170 [ 5705.947579][ T253] __sys_sendmsg+0xcd/0x170 [ 5705.947579][ T253] do_syscall_64+0xc6/0x1e0 [ 5705.947579][ T253] [ 5705.949786][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5705.949786][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5705.949786][ T253] ipv6_find_idev+0x102/0x170 [ 5705.949786][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5705.949786][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5705.949786][ T253] netlink_rcv_skb+0x130/0x360 [ 5705.949786][ T253] netlink_unicast+0x449/0x710 [ 5705.949786][ T253] netlink_sendmsg+0x723/0xbe0 [ 5705.949786][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5705.949786][ T253] ___sys_sendmsg+0xee/0x170 [ 5705.949786][ T253] __sys_sendmsg+0xcd/0x170 [ 5705.949786][ T253] do_syscall_64+0xc6/0x1e0 [ 5705.949786][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5705.949786][ T253] [ 5705.951516][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5705.951516][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5705.951516][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5705.951516][ T253] ipv6_find_idev+0x102/0x170 [ 5705.951516][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5705.951516][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5705.951516][ T253] netlink_rcv_skb+0x130/0x360 [ 5705.951516][ T253] netlink_unicast+0x449/0x710 [ 5705.951516][ T253] netlink_sendmsg+0x723/0xbe0 [ 5705.951516][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5705.951516][ T253] ___sys_sendmsg+0xee/0x170 [ 5705.951516][ T253] __sys_sendmsg+0xcd/0x170 [ 5705.951516][ T253] do_syscall_64+0xc6/0x1e0 [ 5705.951516][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5705.951516][ T253] [ 5715.962242][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5715.962725][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5715.962725][ T253] dst_init+0x84/0x4a0 [ 5715.962725][ T253] dst_alloc+0x97/0x150 [ 5715.962725][ T253] ip6_dst_alloc+0x23/0x90 [ 5715.962725][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5715.962725][ T253] ip6_pol_route+0x56f/0x840 [ 5715.962725][ T253] fib6_rule_lookup+0x334/0x630 [ 5715.962725][ T253] ip6_route_output_flags+0x259/0x480 [ 5715.962725][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5715.962725][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5715.962725][ T253] netlink_rcv_skb+0x130/0x360 [ 5715.962725][ T253] netlink_unicast+0x449/0x710 [ 5715.962725][ T253] netlink_sendmsg+0x723/0xbe0 [ 5715.962725][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5715.962725][ T253] ___sys_sendmsg+0xee/0x170 [ 5715.962725][ T253] __sys_sendmsg+0xcd/0x170 [ 5715.962725][ T253] do_syscall_64+0xc6/0x1e0 [ 5715.962725][ T253] [ 5715.965390][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5715.965390][ T253] netdev_get_by_index+0x5e/0x80 [ 5715.965390][ T253] fib6_nh_init+0x3d8/0x1580 [ 5715.965390][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5715.965390][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5715.965390][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5715.965390][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5715.965390][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5715.965390][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5715.965390][ T253] addrconf_dad_begin+0x310/0x670 [ 5715.965390][ T253] addrconf_dad_work+0x10b/0xab0 [ 5715.965390][ T253] process_one_work+0x84d/0x18a0 [ 5715.965390][ T253] worker_thread+0x587/0xd30 [ 5715.965390][ T253] kthread+0x28a/0x350 [ 5715.965390][ T253] ret_from_fork+0x31/0x70 [ 5715.965390][ T253] ret_from_fork_asm+0x1a/0x30 [ 5715.965390][ T253] [ 5715.967989][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5715.967989][ T253] netdev_get_by_index+0x5e/0x80 [ 5715.967989][ T253] fib6_nh_init+0x3d8/0x1580 [ 5715.967989][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5715.967989][ T253] ip6_route_add+0x1c/0x140 [ 5715.967989][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5715.967989][ T253] inet6_addr_add+0x4f8/0xa40 [ 5715.967989][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5715.967989][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5715.967989][ T253] netlink_rcv_skb+0x130/0x360 [ 5715.967989][ T253] netlink_unicast+0x449/0x710 [ 5715.967989][ T253] netlink_sendmsg+0x723/0xbe0 [ 5715.967989][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5715.967989][ T253] ___sys_sendmsg+0xee/0x170 [ 5715.967989][ T253] __sys_sendmsg+0xcd/0x170 [ 5715.967989][ T253] do_syscall_64+0xc6/0x1e0 [ 5715.967989][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5715.967989][ T253] [ 5715.970706][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5715.970706][ T253] netdev_get_by_index+0x5e/0x80 [ 5715.970706][ T253] fib6_nh_init+0x3d8/0x1580 [ 5715.970706][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5715.970706][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5715.970706][ T253] ipv6_add_addr+0x411/0x2000 [ 5715.970706][ T253] inet6_addr_add+0x30e/0xa40 [ 5715.970706][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5715.970706][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5715.970706][ T253] netlink_rcv_skb+0x130/0x360 [ 5715.970706][ T253] netlink_unicast+0x449/0x710 [ 5715.970706][ T253] netlink_sendmsg+0x723/0xbe0 [ 5715.970706][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5715.970706][ T253] ___sys_sendmsg+0xee/0x170 [ 5715.970706][ T253] __sys_sendmsg+0xcd/0x170 [ 5715.970706][ T253] do_syscall_64+0xc6/0x1e0 [ 5715.970706][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5715.970706][ T253] [ 5715.973440][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5715.973440][ T253] netdev_get_by_index+0x5e/0x80 [ 5715.973440][ T253] fib6_nh_init+0x3d8/0x1580 [ 5715.973440][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5715.973440][ T253] ip6_route_add+0x1c/0x140 [ 5715.973440][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5715.973440][ T253] addrconf_add_dev+0xe2/0x170 [ 5715.973440][ T253] inet6_addr_add+0x12f/0xa40 [ 5715.973440][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5715.973440][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5715.973440][ T253] netlink_rcv_skb+0x130/0x360 [ 5715.973440][ T253] netlink_unicast+0x449/0x710 [ 5715.973440][ T253] netlink_sendmsg+0x723/0xbe0 [ 5715.973440][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5715.973440][ T253] ___sys_sendmsg+0xee/0x170 [ 5715.973440][ T253] __sys_sendmsg+0xcd/0x170 [ 5715.973440][ T253] do_syscall_64+0xc6/0x1e0 [ 5715.973440][ T253] [ 5715.976123][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5715.976123][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5715.976123][ T253] ipv6_find_idev+0x102/0x170 [ 5715.976123][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5715.976123][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5715.976123][ T253] netlink_rcv_skb+0x130/0x360 [ 5715.976123][ T253] netlink_unicast+0x449/0x710 [ 5715.976123][ T253] netlink_sendmsg+0x723/0xbe0 [ 5715.976123][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5715.976123][ T253] ___sys_sendmsg+0xee/0x170 [ 5715.976123][ T253] __sys_sendmsg+0xcd/0x170 [ 5715.976123][ T253] do_syscall_64+0xc6/0x1e0 [ 5715.976123][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5715.976123][ T253] [ 5715.978214][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5715.978214][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5715.978214][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5715.978214][ T253] ipv6_find_idev+0x102/0x170 [ 5715.978214][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5715.978214][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5715.978214][ T253] netlink_rcv_skb+0x130/0x360 [ 5715.978214][ T253] netlink_unicast+0x449/0x710 [ 5715.978214][ T253] netlink_sendmsg+0x723/0xbe0 [ 5715.978214][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5715.978214][ T253] ___sys_sendmsg+0xee/0x170 [ 5715.978214][ T253] __sys_sendmsg+0xcd/0x170 [ 5715.978214][ T253] do_syscall_64+0xc6/0x1e0 [ 5715.978214][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5715.978214][ T253] [ 5726.218229][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5726.218705][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5726.218705][ T253] dst_init+0x84/0x4a0 [ 5726.218705][ T253] dst_alloc+0x97/0x150 [ 5726.218705][ T253] ip6_dst_alloc+0x23/0x90 [ 5726.218705][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5726.218705][ T253] ip6_pol_route+0x56f/0x840 [ 5726.218705][ T253] fib6_rule_lookup+0x334/0x630 [ 5726.218705][ T253] ip6_route_output_flags+0x259/0x480 [ 5726.218705][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5726.218705][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5726.218705][ T253] netlink_rcv_skb+0x130/0x360 [ 5726.218705][ T253] netlink_unicast+0x449/0x710 [ 5726.218705][ T253] netlink_sendmsg+0x723/0xbe0 [ 5726.218705][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5726.218705][ T253] ___sys_sendmsg+0xee/0x170 [ 5726.218705][ T253] __sys_sendmsg+0xcd/0x170 [ 5726.218705][ T253] do_syscall_64+0xc6/0x1e0 [ 5726.218705][ T253] [ 5726.221360][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5726.221360][ T253] netdev_get_by_index+0x5e/0x80 [ 5726.221360][ T253] fib6_nh_init+0x3d8/0x1580 [ 5726.221360][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5726.221360][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5726.221360][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5726.221360][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5726.221360][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5726.221360][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5726.221360][ T253] addrconf_dad_begin+0x310/0x670 [ 5726.221360][ T253] addrconf_dad_work+0x10b/0xab0 [ 5726.221360][ T253] process_one_work+0x84d/0x18a0 [ 5726.221360][ T253] worker_thread+0x587/0xd30 [ 5726.221360][ T253] kthread+0x28a/0x350 [ 5726.221360][ T253] ret_from_fork+0x31/0x70 [ 5726.221360][ T253] ret_from_fork_asm+0x1a/0x30 [ 5726.221360][ T253] [ 5726.223979][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5726.223979][ T253] netdev_get_by_index+0x5e/0x80 [ 5726.223979][ T253] fib6_nh_init+0x3d8/0x1580 [ 5726.223979][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5726.223979][ T253] ip6_route_add+0x1c/0x140 [ 5726.223979][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5726.223979][ T253] inet6_addr_add+0x4f8/0xa40 [ 5726.223979][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5726.223979][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5726.223979][ T253] netlink_rcv_skb+0x130/0x360 [ 5726.223979][ T253] netlink_unicast+0x449/0x710 [ 5726.223979][ T253] netlink_sendmsg+0x723/0xbe0 [ 5726.223979][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5726.223979][ T253] ___sys_sendmsg+0xee/0x170 [ 5726.223979][ T253] __sys_sendmsg+0xcd/0x170 [ 5726.223979][ T253] do_syscall_64+0xc6/0x1e0 [ 5726.223979][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5726.223979][ T253] [ 5726.226696][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5726.226696][ T253] netdev_get_by_index+0x5e/0x80 [ 5726.226696][ T253] fib6_nh_init+0x3d8/0x1580 [ 5726.226696][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5726.226696][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5726.226696][ T253] ipv6_add_addr+0x411/0x2000 [ 5726.226696][ T253] inet6_addr_add+0x30e/0xa40 [ 5726.226696][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5726.226696][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5726.226696][ T253] netlink_rcv_skb+0x130/0x360 [ 5726.226696][ T253] netlink_unicast+0x449/0x710 [ 5726.226696][ T253] netlink_sendmsg+0x723/0xbe0 [ 5726.226696][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5726.226696][ T253] ___sys_sendmsg+0xee/0x170 [ 5726.226696][ T253] __sys_sendmsg+0xcd/0x170 [ 5726.226696][ T253] do_syscall_64+0xc6/0x1e0 [ 5726.226696][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5726.226696][ T253] [ 5726.229404][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5726.229404][ T253] netdev_get_by_index+0x5e/0x80 [ 5726.229404][ T253] fib6_nh_init+0x3d8/0x1580 [ 5726.229404][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5726.229404][ T253] ip6_route_add+0x1c/0x140 [ 5726.229404][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5726.229404][ T253] addrconf_add_dev+0xe2/0x170 [ 5726.229404][ T253] inet6_addr_add+0x12f/0xa40 [ 5726.229404][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5726.229404][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5726.229404][ T253] netlink_rcv_skb+0x130/0x360 [ 5726.229404][ T253] netlink_unicast+0x449/0x710 [ 5726.229404][ T253] netlink_sendmsg+0x723/0xbe0 [ 5726.229404][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5726.229404][ T253] ___sys_sendmsg+0xee/0x170 [ 5726.229404][ T253] __sys_sendmsg+0xcd/0x170 [ 5726.229404][ T253] do_syscall_64+0xc6/0x1e0 [ 5726.229404][ T253] [ 5726.232067][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5726.232067][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5726.232067][ T253] ipv6_find_idev+0x102/0x170 [ 5726.232067][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5726.232067][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5726.232067][ T253] netlink_rcv_skb+0x130/0x360 [ 5726.232067][ T253] netlink_unicast+0x449/0x710 [ 5726.232067][ T253] netlink_sendmsg+0x723/0xbe0 [ 5726.232067][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5726.232067][ T253] ___sys_sendmsg+0xee/0x170 [ 5726.232067][ T253] __sys_sendmsg+0xcd/0x170 [ 5726.232067][ T253] do_syscall_64+0xc6/0x1e0 [ 5726.232067][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5726.232067][ T253] [ 5726.234177][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5726.234177][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5726.234177][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5726.234177][ T253] ipv6_find_idev+0x102/0x170 [ 5726.234177][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5726.234177][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5726.234177][ T253] netlink_rcv_skb+0x130/0x360 [ 5726.234177][ T253] netlink_unicast+0x449/0x710 [ 5726.234177][ T253] netlink_sendmsg+0x723/0xbe0 [ 5726.234177][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5726.234177][ T253] ___sys_sendmsg+0xee/0x170 [ 5726.234177][ T253] __sys_sendmsg+0xcd/0x170 [ 5726.234177][ T253] do_syscall_64+0xc6/0x1e0 [ 5726.234177][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5726.234177][ T253] [ 5736.354231][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5736.354712][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5736.354712][ T253] dst_init+0x84/0x4a0 [ 5736.354712][ T253] dst_alloc+0x97/0x150 [ 5736.354712][ T253] ip6_dst_alloc+0x23/0x90 [ 5736.354712][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5736.354712][ T253] ip6_pol_route+0x56f/0x840 [ 5736.354712][ T253] fib6_rule_lookup+0x334/0x630 [ 5736.354712][ T253] ip6_route_output_flags+0x259/0x480 [ 5736.354712][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5736.354712][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5736.354712][ T253] netlink_rcv_skb+0x130/0x360 [ 5736.354712][ T253] netlink_unicast+0x449/0x710 [ 5736.354712][ T253] netlink_sendmsg+0x723/0xbe0 [ 5736.354712][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5736.354712][ T253] ___sys_sendmsg+0xee/0x170 [ 5736.354712][ T253] __sys_sendmsg+0xcd/0x170 [ 5736.354712][ T253] do_syscall_64+0xc6/0x1e0 [ 5736.354712][ T253] [ 5736.357381][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5736.357381][ T253] netdev_get_by_index+0x5e/0x80 [ 5736.357381][ T253] fib6_nh_init+0x3d8/0x1580 [ 5736.357381][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5736.357381][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5736.357381][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5736.357381][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5736.357381][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5736.357381][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5736.357381][ T253] addrconf_dad_begin+0x310/0x670 [ 5736.357381][ T253] addrconf_dad_work+0x10b/0xab0 [ 5736.357381][ T253] process_one_work+0x84d/0x18a0 [ 5736.357381][ T253] worker_thread+0x587/0xd30 [ 5736.357381][ T253] kthread+0x28a/0x350 [ 5736.357381][ T253] ret_from_fork+0x31/0x70 [ 5736.357381][ T253] ret_from_fork_asm+0x1a/0x30 [ 5736.357381][ T253] [ 5736.359969][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5736.359969][ T253] netdev_get_by_index+0x5e/0x80 [ 5736.359969][ T253] fib6_nh_init+0x3d8/0x1580 [ 5736.359969][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5736.359969][ T253] ip6_route_add+0x1c/0x140 [ 5736.359969][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5736.359969][ T253] inet6_addr_add+0x4f8/0xa40 [ 5736.359969][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5736.359969][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5736.359969][ T253] netlink_rcv_skb+0x130/0x360 [ 5736.359969][ T253] netlink_unicast+0x449/0x710 [ 5736.359969][ T253] netlink_sendmsg+0x723/0xbe0 [ 5736.359969][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5736.359969][ T253] ___sys_sendmsg+0xee/0x170 [ 5736.359969][ T253] __sys_sendmsg+0xcd/0x170 [ 5736.359969][ T253] do_syscall_64+0xc6/0x1e0 [ 5736.359969][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5736.359969][ T253] [ 5736.363227][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5736.363227][ T253] netdev_get_by_index+0x5e/0x80 [ 5736.363227][ T253] fib6_nh_init+0x3d8/0x1580 [ 5736.363227][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5736.363227][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5736.363227][ T253] ipv6_add_addr+0x411/0x2000 [ 5736.363227][ T253] inet6_addr_add+0x30e/0xa40 [ 5736.363227][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5736.363227][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5736.363227][ T253] netlink_rcv_skb+0x130/0x360 [ 5736.363227][ T253] netlink_unicast+0x449/0x710 [ 5736.363227][ T253] netlink_sendmsg+0x723/0xbe0 [ 5736.363227][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5736.363227][ T253] ___sys_sendmsg+0xee/0x170 [ 5736.363227][ T253] __sys_sendmsg+0xcd/0x170 [ 5736.363227][ T253] do_syscall_64+0xc6/0x1e0 [ 5736.363227][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5736.363227][ T253] [ 5736.365943][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5736.365943][ T253] netdev_get_by_index+0x5e/0x80 [ 5736.365943][ T253] fib6_nh_init+0x3d8/0x1580 [ 5736.365943][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5736.365943][ T253] ip6_route_add+0x1c/0x140 [ 5736.365943][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5736.365943][ T253] addrconf_add_dev+0xe2/0x170 [ 5736.365943][ T253] inet6_addr_add+0x12f/0xa40 [ 5736.365943][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5736.365943][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5736.365943][ T253] netlink_rcv_skb+0x130/0x360 [ 5736.365943][ T253] netlink_unicast+0x449/0x710 [ 5736.365943][ T253] netlink_sendmsg+0x723/0xbe0 [ 5736.365943][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5736.365943][ T253] ___sys_sendmsg+0xee/0x170 [ 5736.365943][ T253] __sys_sendmsg+0xcd/0x170 [ 5736.365943][ T253] do_syscall_64+0xc6/0x1e0 [ 5736.365943][ T253] [ 5736.368612][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5736.368612][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5736.368612][ T253] ipv6_find_idev+0x102/0x170 [ 5736.368612][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5736.368612][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5736.368612][ T253] netlink_rcv_skb+0x130/0x360 [ 5736.368612][ T253] netlink_unicast+0x449/0x710 [ 5736.368612][ T253] netlink_sendmsg+0x723/0xbe0 [ 5736.368612][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5736.368612][ T253] ___sys_sendmsg+0xee/0x170 [ 5736.368612][ T253] __sys_sendmsg+0xcd/0x170 [ 5736.368612][ T253] do_syscall_64+0xc6/0x1e0 [ 5736.368612][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5736.368612][ T253] [ 5736.370688][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5736.370688][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5736.370688][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5736.370688][ T253] ipv6_find_idev+0x102/0x170 [ 5736.370688][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5736.370688][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5736.370688][ T253] netlink_rcv_skb+0x130/0x360 [ 5736.370688][ T253] netlink_unicast+0x449/0x710 [ 5736.370688][ T253] netlink_sendmsg+0x723/0xbe0 [ 5736.370688][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5736.370688][ T253] ___sys_sendmsg+0xee/0x170 [ 5736.370688][ T253] __sys_sendmsg+0xcd/0x170 [ 5736.370688][ T253] do_syscall_64+0xc6/0x1e0 [ 5736.370688][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5736.370688][ T253] [ 5746.610265][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5746.611048][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5746.611048][ T253] dst_init+0x84/0x4a0 [ 5746.611048][ T253] dst_alloc+0x97/0x150 [ 5746.611048][ T253] ip6_dst_alloc+0x23/0x90 [ 5746.611048][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5746.611048][ T253] ip6_pol_route+0x56f/0x840 [ 5746.611048][ T253] fib6_rule_lookup+0x334/0x630 [ 5746.611048][ T253] ip6_route_output_flags+0x259/0x480 [ 5746.611048][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5746.611048][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5746.611048][ T253] netlink_rcv_skb+0x130/0x360 [ 5746.611048][ T253] netlink_unicast+0x449/0x710 [ 5746.611048][ T253] netlink_sendmsg+0x723/0xbe0 [ 5746.611048][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5746.611048][ T253] ___sys_sendmsg+0xee/0x170 [ 5746.611048][ T253] __sys_sendmsg+0xcd/0x170 [ 5746.611048][ T253] do_syscall_64+0xc6/0x1e0 [ 5746.611048][ T253] [ 5746.613245][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5746.613245][ T253] netdev_get_by_index+0x5e/0x80 [ 5746.613245][ T253] fib6_nh_init+0x3d8/0x1580 [ 5746.613245][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5746.613245][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5746.613245][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5746.613245][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5746.613245][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5746.613245][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5746.613245][ T253] addrconf_dad_begin+0x310/0x670 [ 5746.613245][ T253] addrconf_dad_work+0x10b/0xab0 [ 5746.613245][ T253] process_one_work+0x84d/0x18a0 [ 5746.613245][ T253] worker_thread+0x587/0xd30 [ 5746.613245][ T253] kthread+0x28a/0x350 [ 5746.613245][ T253] ret_from_fork+0x31/0x70 [ 5746.613245][ T253] ret_from_fork_asm+0x1a/0x30 [ 5746.613245][ T253] [ 5746.615375][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5746.615375][ T253] netdev_get_by_index+0x5e/0x80 [ 5746.615375][ T253] fib6_nh_init+0x3d8/0x1580 [ 5746.615375][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5746.615375][ T253] ip6_route_add+0x1c/0x140 [ 5746.615375][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5746.615375][ T253] inet6_addr_add+0x4f8/0xa40 [ 5746.615375][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5746.615375][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5746.615375][ T253] netlink_rcv_skb+0x130/0x360 [ 5746.615375][ T253] netlink_unicast+0x449/0x710 [ 5746.615375][ T253] netlink_sendmsg+0x723/0xbe0 [ 5746.615375][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5746.615375][ T253] ___sys_sendmsg+0xee/0x170 [ 5746.615375][ T253] __sys_sendmsg+0xcd/0x170 [ 5746.615375][ T253] do_syscall_64+0xc6/0x1e0 [ 5746.615375][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5746.615375][ T253] [ 5746.617612][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5746.617612][ T253] netdev_get_by_index+0x5e/0x80 [ 5746.617612][ T253] fib6_nh_init+0x3d8/0x1580 [ 5746.617612][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5746.617612][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5746.617612][ T253] ipv6_add_addr+0x411/0x2000 [ 5746.617612][ T253] inet6_addr_add+0x30e/0xa40 [ 5746.617612][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5746.617612][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5746.617612][ T253] netlink_rcv_skb+0x130/0x360 [ 5746.617612][ T253] netlink_unicast+0x449/0x710 [ 5746.617612][ T253] netlink_sendmsg+0x723/0xbe0 [ 5746.617612][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5746.617612][ T253] ___sys_sendmsg+0xee/0x170 [ 5746.617612][ T253] __sys_sendmsg+0xcd/0x170 [ 5746.617612][ T253] do_syscall_64+0xc6/0x1e0 [ 5746.617612][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5746.617612][ T253] [ 5746.619847][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5746.619847][ T253] netdev_get_by_index+0x5e/0x80 [ 5746.619847][ T253] fib6_nh_init+0x3d8/0x1580 [ 5746.619847][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5746.619847][ T253] ip6_route_add+0x1c/0x140 [ 5746.619847][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5746.619847][ T253] addrconf_add_dev+0xe2/0x170 [ 5746.619847][ T253] inet6_addr_add+0x12f/0xa40 [ 5746.619847][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5746.619847][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5746.619847][ T253] netlink_rcv_skb+0x130/0x360 [ 5746.619847][ T253] netlink_unicast+0x449/0x710 [ 5746.619847][ T253] netlink_sendmsg+0x723/0xbe0 [ 5746.619847][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5746.619847][ T253] ___sys_sendmsg+0xee/0x170 [ 5746.619847][ T253] __sys_sendmsg+0xcd/0x170 [ 5746.619847][ T253] do_syscall_64+0xc6/0x1e0 [ 5746.619847][ T253] [ 5746.622047][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5746.622047][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5746.622047][ T253] ipv6_find_idev+0x102/0x170 [ 5746.622047][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5746.622047][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5746.622047][ T253] netlink_rcv_skb+0x130/0x360 [ 5746.622047][ T253] netlink_unicast+0x449/0x710 [ 5746.622047][ T253] netlink_sendmsg+0x723/0xbe0 [ 5746.622047][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5746.622047][ T253] ___sys_sendmsg+0xee/0x170 [ 5746.622047][ T253] __sys_sendmsg+0xcd/0x170 [ 5746.622047][ T253] do_syscall_64+0xc6/0x1e0 [ 5746.622047][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5746.622047][ T253] [ 5746.623777][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5746.623777][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5746.623777][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5746.623777][ T253] ipv6_find_idev+0x102/0x170 [ 5746.623777][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5746.623777][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5746.623777][ T253] netlink_rcv_skb+0x130/0x360 [ 5746.623777][ T253] netlink_unicast+0x449/0x710 [ 5746.623777][ T253] netlink_sendmsg+0x723/0xbe0 [ 5746.623777][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5746.623777][ T253] ___sys_sendmsg+0xee/0x170 [ 5746.623777][ T253] __sys_sendmsg+0xcd/0x170 [ 5746.623777][ T253] do_syscall_64+0xc6/0x1e0 [ 5746.623777][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5746.623777][ T253] [ 5756.674327][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5756.674813][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5756.674813][ T253] dst_init+0x84/0x4a0 [ 5756.674813][ T253] dst_alloc+0x97/0x150 [ 5756.674813][ T253] ip6_dst_alloc+0x23/0x90 [ 5756.674813][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5756.674813][ T253] ip6_pol_route+0x56f/0x840 [ 5756.674813][ T253] fib6_rule_lookup+0x334/0x630 [ 5756.674813][ T253] ip6_route_output_flags+0x259/0x480 [ 5756.674813][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5756.674813][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5756.674813][ T253] netlink_rcv_skb+0x130/0x360 [ 5756.674813][ T253] netlink_unicast+0x449/0x710 [ 5756.674813][ T253] netlink_sendmsg+0x723/0xbe0 [ 5756.674813][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5756.674813][ T253] ___sys_sendmsg+0xee/0x170 [ 5756.674813][ T253] __sys_sendmsg+0xcd/0x170 [ 5756.674813][ T253] do_syscall_64+0xc6/0x1e0 [ 5756.674813][ T253] [ 5756.677018][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5756.677018][ T253] netdev_get_by_index+0x5e/0x80 [ 5756.677018][ T253] fib6_nh_init+0x3d8/0x1580 [ 5756.677018][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5756.677018][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5756.677018][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5756.677018][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5756.677018][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5756.677018][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5756.677018][ T253] addrconf_dad_begin+0x310/0x670 [ 5756.677018][ T253] addrconf_dad_work+0x10b/0xab0 [ 5756.677018][ T253] process_one_work+0x84d/0x18a0 [ 5756.677018][ T253] worker_thread+0x587/0xd30 [ 5756.677018][ T253] kthread+0x28a/0x350 [ 5756.677018][ T253] ret_from_fork+0x31/0x70 [ 5756.677018][ T253] ret_from_fork_asm+0x1a/0x30 [ 5756.677018][ T253] [ 5756.679158][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5756.679158][ T253] netdev_get_by_index+0x5e/0x80 [ 5756.679158][ T253] fib6_nh_init+0x3d8/0x1580 [ 5756.679158][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5756.679158][ T253] ip6_route_add+0x1c/0x140 [ 5756.679158][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5756.679158][ T253] inet6_addr_add+0x4f8/0xa40 [ 5756.679158][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5756.679158][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5756.679158][ T253] netlink_rcv_skb+0x130/0x360 [ 5756.679158][ T253] netlink_unicast+0x449/0x710 [ 5756.679158][ T253] netlink_sendmsg+0x723/0xbe0 [ 5756.679158][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5756.679158][ T253] ___sys_sendmsg+0xee/0x170 [ 5756.679158][ T253] __sys_sendmsg+0xcd/0x170 [ 5756.679158][ T253] do_syscall_64+0xc6/0x1e0 [ 5756.679158][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5756.679158][ T253] [ 5756.681410][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5756.681410][ T253] netdev_get_by_index+0x5e/0x80 [ 5756.681410][ T253] fib6_nh_init+0x3d8/0x1580 [ 5756.681410][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5756.681410][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5756.681410][ T253] ipv6_add_addr+0x411/0x2000 [ 5756.681410][ T253] inet6_addr_add+0x30e/0xa40 [ 5756.681410][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5756.681410][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5756.681410][ T253] netlink_rcv_skb+0x130/0x360 [ 5756.681410][ T253] netlink_unicast+0x449/0x710 [ 5756.681410][ T253] netlink_sendmsg+0x723/0xbe0 [ 5756.681410][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5756.681410][ T253] ___sys_sendmsg+0xee/0x170 [ 5756.681410][ T253] __sys_sendmsg+0xcd/0x170 [ 5756.681410][ T253] do_syscall_64+0xc6/0x1e0 [ 5756.681410][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5756.681410][ T253] [ 5756.683661][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5756.683661][ T253] netdev_get_by_index+0x5e/0x80 [ 5756.683661][ T253] fib6_nh_init+0x3d8/0x1580 [ 5756.683661][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5756.683661][ T253] ip6_route_add+0x1c/0x140 [ 5756.683661][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5756.683661][ T253] addrconf_add_dev+0xe2/0x170 [ 5756.683661][ T253] inet6_addr_add+0x12f/0xa40 [ 5756.683661][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5756.683661][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5756.683661][ T253] netlink_rcv_skb+0x130/0x360 [ 5756.683661][ T253] netlink_unicast+0x449/0x710 [ 5756.683661][ T253] netlink_sendmsg+0x723/0xbe0 [ 5756.683661][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5756.683661][ T253] ___sys_sendmsg+0xee/0x170 [ 5756.683661][ T253] __sys_sendmsg+0xcd/0x170 [ 5756.683661][ T253] do_syscall_64+0xc6/0x1e0 [ 5756.683661][ T253] [ 5756.685857][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5756.685857][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5756.685857][ T253] ipv6_find_idev+0x102/0x170 [ 5756.685857][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5756.685857][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5756.685857][ T253] netlink_rcv_skb+0x130/0x360 [ 5756.685857][ T253] netlink_unicast+0x449/0x710 [ 5756.685857][ T253] netlink_sendmsg+0x723/0xbe0 [ 5756.685857][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5756.685857][ T253] ___sys_sendmsg+0xee/0x170 [ 5756.685857][ T253] __sys_sendmsg+0xcd/0x170 [ 5756.685857][ T253] do_syscall_64+0xc6/0x1e0 [ 5756.685857][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5756.685857][ T253] [ 5756.687963][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5756.687963][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5756.687963][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5756.687963][ T253] ipv6_find_idev+0x102/0x170 [ 5756.687963][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5756.687963][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5756.687963][ T253] netlink_rcv_skb+0x130/0x360 [ 5756.687963][ T253] netlink_unicast+0x449/0x710 [ 5756.687963][ T253] netlink_sendmsg+0x723/0xbe0 [ 5756.687963][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5756.687963][ T253] ___sys_sendmsg+0xee/0x170 [ 5756.687963][ T253] __sys_sendmsg+0xcd/0x170 [ 5756.687963][ T253] do_syscall_64+0xc6/0x1e0 [ 5756.687963][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5756.687963][ T253] [ 5766.842376][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5766.842875][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5766.842875][ T253] dst_init+0x84/0x4a0 [ 5766.842875][ T253] dst_alloc+0x97/0x150 [ 5766.842875][ T253] ip6_dst_alloc+0x23/0x90 [ 5766.842875][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5766.842875][ T253] ip6_pol_route+0x56f/0x840 [ 5766.842875][ T253] fib6_rule_lookup+0x334/0x630 [ 5766.842875][ T253] ip6_route_output_flags+0x259/0x480 [ 5766.842875][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5766.842875][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5766.842875][ T253] netlink_rcv_skb+0x130/0x360 [ 5766.842875][ T253] netlink_unicast+0x449/0x710 [ 5766.842875][ T253] netlink_sendmsg+0x723/0xbe0 [ 5766.842875][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5766.842875][ T253] ___sys_sendmsg+0xee/0x170 [ 5766.842875][ T253] __sys_sendmsg+0xcd/0x170 [ 5766.842875][ T253] do_syscall_64+0xc6/0x1e0 [ 5766.842875][ T253] [ 5766.845083][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5766.845083][ T253] netdev_get_by_index+0x5e/0x80 [ 5766.845083][ T253] fib6_nh_init+0x3d8/0x1580 [ 5766.845083][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5766.845083][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5766.845083][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5766.845083][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5766.845083][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5766.845083][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5766.845083][ T253] addrconf_dad_begin+0x310/0x670 [ 5766.845083][ T253] addrconf_dad_work+0x10b/0xab0 [ 5766.845083][ T253] process_one_work+0x84d/0x18a0 [ 5766.845083][ T253] worker_thread+0x587/0xd30 [ 5766.845083][ T253] kthread+0x28a/0x350 [ 5766.845083][ T253] ret_from_fork+0x31/0x70 [ 5766.845083][ T253] ret_from_fork_asm+0x1a/0x30 [ 5766.845083][ T253] [ 5766.847247][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5766.847247][ T253] netdev_get_by_index+0x5e/0x80 [ 5766.847247][ T253] fib6_nh_init+0x3d8/0x1580 [ 5766.847247][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5766.847247][ T253] ip6_route_add+0x1c/0x140 [ 5766.847247][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5766.847247][ T253] inet6_addr_add+0x4f8/0xa40 [ 5766.847247][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5766.847247][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5766.847247][ T253] netlink_rcv_skb+0x130/0x360 [ 5766.847247][ T253] netlink_unicast+0x449/0x710 [ 5766.847247][ T253] netlink_sendmsg+0x723/0xbe0 [ 5766.847247][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5766.847247][ T253] ___sys_sendmsg+0xee/0x170 [ 5766.847247][ T253] __sys_sendmsg+0xcd/0x170 [ 5766.847247][ T253] do_syscall_64+0xc6/0x1e0 [ 5766.847247][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5766.847247][ T253] [ 5766.849490][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5766.849490][ T253] netdev_get_by_index+0x5e/0x80 [ 5766.849490][ T253] fib6_nh_init+0x3d8/0x1580 [ 5766.849490][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5766.849490][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5766.849490][ T253] ipv6_add_addr+0x411/0x2000 [ 5766.849490][ T253] inet6_addr_add+0x30e/0xa40 [ 5766.849490][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5766.849490][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5766.849490][ T253] netlink_rcv_skb+0x130/0x360 [ 5766.849490][ T253] netlink_unicast+0x449/0x710 [ 5766.849490][ T253] netlink_sendmsg+0x723/0xbe0 [ 5766.849490][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5766.849490][ T253] ___sys_sendmsg+0xee/0x170 [ 5766.849490][ T253] __sys_sendmsg+0xcd/0x170 [ 5766.849490][ T253] do_syscall_64+0xc6/0x1e0 [ 5766.849490][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5766.849490][ T253] [ 5766.851768][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5766.851768][ T253] netdev_get_by_index+0x5e/0x80 [ 5766.851768][ T253] fib6_nh_init+0x3d8/0x1580 [ 5766.851768][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5766.851768][ T253] ip6_route_add+0x1c/0x140 [ 5766.851768][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5766.851768][ T253] addrconf_add_dev+0xe2/0x170 [ 5766.851768][ T253] inet6_addr_add+0x12f/0xa40 [ 5766.851768][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5766.851768][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5766.851768][ T253] netlink_rcv_skb+0x130/0x360 [ 5766.851768][ T253] netlink_unicast+0x449/0x710 [ 5766.851768][ T253] netlink_sendmsg+0x723/0xbe0 [ 5766.851768][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5766.851768][ T253] ___sys_sendmsg+0xee/0x170 [ 5766.851768][ T253] __sys_sendmsg+0xcd/0x170 [ 5766.851768][ T253] do_syscall_64+0xc6/0x1e0 [ 5766.851768][ T253] [ 5766.854013][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5766.854013][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5766.854013][ T253] ipv6_find_idev+0x102/0x170 [ 5766.854013][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5766.854013][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5766.854013][ T253] netlink_rcv_skb+0x130/0x360 [ 5766.854013][ T253] netlink_unicast+0x449/0x710 [ 5766.854013][ T253] netlink_sendmsg+0x723/0xbe0 [ 5766.854013][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5766.854013][ T253] ___sys_sendmsg+0xee/0x170 [ 5766.854013][ T253] __sys_sendmsg+0xcd/0x170 [ 5766.854013][ T253] do_syscall_64+0xc6/0x1e0 [ 5766.854013][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5766.854013][ T253] [ 5766.855777][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5766.855777][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5766.855777][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5766.855777][ T253] ipv6_find_idev+0x102/0x170 [ 5766.855777][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5766.855777][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5766.855777][ T253] netlink_rcv_skb+0x130/0x360 [ 5766.855777][ T253] netlink_unicast+0x449/0x710 [ 5766.855777][ T253] netlink_sendmsg+0x723/0xbe0 [ 5766.855777][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5766.855777][ T253] ___sys_sendmsg+0xee/0x170 [ 5766.855777][ T253] __sys_sendmsg+0xcd/0x170 [ 5766.855777][ T253] do_syscall_64+0xc6/0x1e0 [ 5766.855777][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5766.855777][ T253] [ 5777.106338][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5777.106816][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5777.106816][ T253] dst_init+0x84/0x4a0 [ 5777.106816][ T253] dst_alloc+0x97/0x150 [ 5777.106816][ T253] ip6_dst_alloc+0x23/0x90 [ 5777.106816][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5777.106816][ T253] ip6_pol_route+0x56f/0x840 [ 5777.106816][ T253] fib6_rule_lookup+0x334/0x630 [ 5777.106816][ T253] ip6_route_output_flags+0x259/0x480 [ 5777.106816][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5777.106816][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5777.106816][ T253] netlink_rcv_skb+0x130/0x360 [ 5777.106816][ T253] netlink_unicast+0x449/0x710 [ 5777.106816][ T253] netlink_sendmsg+0x723/0xbe0 [ 5777.106816][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5777.106816][ T253] ___sys_sendmsg+0xee/0x170 [ 5777.106816][ T253] __sys_sendmsg+0xcd/0x170 [ 5777.106816][ T253] do_syscall_64+0xc6/0x1e0 [ 5777.106816][ T253] [ 5777.109015][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5777.109015][ T253] netdev_get_by_index+0x5e/0x80 [ 5777.109015][ T253] fib6_nh_init+0x3d8/0x1580 [ 5777.109015][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5777.109015][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5777.109015][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5777.109015][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5777.109015][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5777.109015][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5777.109015][ T253] addrconf_dad_begin+0x310/0x670 [ 5777.109015][ T253] addrconf_dad_work+0x10b/0xab0 [ 5777.109015][ T253] process_one_work+0x84d/0x18a0 [ 5777.109015][ T253] worker_thread+0x587/0xd30 [ 5777.109015][ T253] kthread+0x28a/0x350 [ 5777.109015][ T253] ret_from_fork+0x31/0x70 [ 5777.109015][ T253] ret_from_fork_asm+0x1a/0x30 [ 5777.109015][ T253] [ 5777.111146][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5777.111146][ T253] netdev_get_by_index+0x5e/0x80 [ 5777.111146][ T253] fib6_nh_init+0x3d8/0x1580 [ 5777.111146][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5777.111146][ T253] ip6_route_add+0x1c/0x140 [ 5777.111146][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5777.111146][ T253] inet6_addr_add+0x4f8/0xa40 [ 5777.111146][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5777.111146][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5777.111146][ T253] netlink_rcv_skb+0x130/0x360 [ 5777.111146][ T253] netlink_unicast+0x449/0x710 [ 5777.111146][ T253] netlink_sendmsg+0x723/0xbe0 [ 5777.111146][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5777.111146][ T253] ___sys_sendmsg+0xee/0x170 [ 5777.111146][ T253] __sys_sendmsg+0xcd/0x170 [ 5777.111146][ T253] do_syscall_64+0xc6/0x1e0 [ 5777.111146][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5777.111146][ T253] [ 5777.113405][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5777.113405][ T253] netdev_get_by_index+0x5e/0x80 [ 5777.113405][ T253] fib6_nh_init+0x3d8/0x1580 [ 5777.113405][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5777.113405][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5777.113405][ T253] ipv6_add_addr+0x411/0x2000 [ 5777.113405][ T253] inet6_addr_add+0x30e/0xa40 [ 5777.113405][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5777.113405][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5777.113405][ T253] netlink_rcv_skb+0x130/0x360 [ 5777.113405][ T253] netlink_unicast+0x449/0x710 [ 5777.113405][ T253] netlink_sendmsg+0x723/0xbe0 [ 5777.113405][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5777.113405][ T253] ___sys_sendmsg+0xee/0x170 [ 5777.113405][ T253] __sys_sendmsg+0xcd/0x170 [ 5777.113405][ T253] do_syscall_64+0xc6/0x1e0 [ 5777.113405][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5777.113405][ T253] [ 5777.115640][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5777.115640][ T253] netdev_get_by_index+0x5e/0x80 [ 5777.115640][ T253] fib6_nh_init+0x3d8/0x1580 [ 5777.115640][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5777.115640][ T253] ip6_route_add+0x1c/0x140 [ 5777.115640][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5777.115640][ T253] addrconf_add_dev+0xe2/0x170 [ 5777.115640][ T253] inet6_addr_add+0x12f/0xa40 [ 5777.115640][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5777.115640][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5777.115640][ T253] netlink_rcv_skb+0x130/0x360 [ 5777.115640][ T253] netlink_unicast+0x449/0x710 [ 5777.115640][ T253] netlink_sendmsg+0x723/0xbe0 [ 5777.115640][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5777.115640][ T253] ___sys_sendmsg+0xee/0x170 [ 5777.115640][ T253] __sys_sendmsg+0xcd/0x170 [ 5777.115640][ T253] do_syscall_64+0xc6/0x1e0 [ 5777.115640][ T253] [ 5777.117834][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5777.117834][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5777.117834][ T253] ipv6_find_idev+0x102/0x170 [ 5777.117834][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5777.117834][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5777.117834][ T253] netlink_rcv_skb+0x130/0x360 [ 5777.117834][ T253] netlink_unicast+0x449/0x710 [ 5777.117834][ T253] netlink_sendmsg+0x723/0xbe0 [ 5777.117834][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5777.117834][ T253] ___sys_sendmsg+0xee/0x170 [ 5777.117834][ T253] __sys_sendmsg+0xcd/0x170 [ 5777.117834][ T253] do_syscall_64+0xc6/0x1e0 [ 5777.117834][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5777.117834][ T253] [ 5777.119554][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5777.119554][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5777.119554][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5777.119554][ T253] ipv6_find_idev+0x102/0x170 [ 5777.119554][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5777.119554][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5777.119554][ T253] netlink_rcv_skb+0x130/0x360 [ 5777.119554][ T253] netlink_unicast+0x449/0x710 [ 5777.119554][ T253] netlink_sendmsg+0x723/0xbe0 [ 5777.119554][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5777.119554][ T253] ___sys_sendmsg+0xee/0x170 [ 5777.119554][ T253] __sys_sendmsg+0xcd/0x170 [ 5777.119554][ T253] do_syscall_64+0xc6/0x1e0 [ 5777.119554][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5777.119554][ T253] [ 5787.362330][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5787.362826][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5787.362826][ T253] dst_init+0x84/0x4a0 [ 5787.362826][ T253] dst_alloc+0x97/0x150 [ 5787.362826][ T253] ip6_dst_alloc+0x23/0x90 [ 5787.362826][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5787.362826][ T253] ip6_pol_route+0x56f/0x840 [ 5787.362826][ T253] fib6_rule_lookup+0x334/0x630 [ 5787.362826][ T253] ip6_route_output_flags+0x259/0x480 [ 5787.362826][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5787.362826][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5787.362826][ T253] netlink_rcv_skb+0x130/0x360 [ 5787.362826][ T253] netlink_unicast+0x449/0x710 [ 5787.362826][ T253] netlink_sendmsg+0x723/0xbe0 [ 5787.362826][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5787.362826][ T253] ___sys_sendmsg+0xee/0x170 [ 5787.362826][ T253] __sys_sendmsg+0xcd/0x170 [ 5787.362826][ T253] do_syscall_64+0xc6/0x1e0 [ 5787.362826][ T253] [ 5787.365039][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5787.365039][ T253] netdev_get_by_index+0x5e/0x80 [ 5787.365039][ T253] fib6_nh_init+0x3d8/0x1580 [ 5787.365039][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5787.365039][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5787.365039][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5787.365039][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5787.365039][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5787.365039][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5787.365039][ T253] addrconf_dad_begin+0x310/0x670 [ 5787.365039][ T253] addrconf_dad_work+0x10b/0xab0 [ 5787.365039][ T253] process_one_work+0x84d/0x18a0 [ 5787.365039][ T253] worker_thread+0x587/0xd30 [ 5787.365039][ T253] kthread+0x28a/0x350 [ 5787.365039][ T253] ret_from_fork+0x31/0x70 [ 5787.365039][ T253] ret_from_fork_asm+0x1a/0x30 [ 5787.365039][ T253] [ 5787.367201][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5787.367201][ T253] netdev_get_by_index+0x5e/0x80 [ 5787.367201][ T253] fib6_nh_init+0x3d8/0x1580 [ 5787.367201][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5787.367201][ T253] ip6_route_add+0x1c/0x140 [ 5787.367201][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5787.367201][ T253] inet6_addr_add+0x4f8/0xa40 [ 5787.367201][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5787.367201][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5787.367201][ T253] netlink_rcv_skb+0x130/0x360 [ 5787.367201][ T253] netlink_unicast+0x449/0x710 [ 5787.367201][ T253] netlink_sendmsg+0x723/0xbe0 [ 5787.367201][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5787.367201][ T253] ___sys_sendmsg+0xee/0x170 [ 5787.367201][ T253] __sys_sendmsg+0xcd/0x170 [ 5787.367201][ T253] do_syscall_64+0xc6/0x1e0 [ 5787.367201][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5787.367201][ T253] [ 5787.369455][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5787.369455][ T253] netdev_get_by_index+0x5e/0x80 [ 5787.369455][ T253] fib6_nh_init+0x3d8/0x1580 [ 5787.369455][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5787.369455][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5787.369455][ T253] ipv6_add_addr+0x411/0x2000 [ 5787.369455][ T253] inet6_addr_add+0x30e/0xa40 [ 5787.369455][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5787.369455][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5787.369455][ T253] netlink_rcv_skb+0x130/0x360 [ 5787.369455][ T253] netlink_unicast+0x449/0x710 [ 5787.369455][ T253] netlink_sendmsg+0x723/0xbe0 [ 5787.369455][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5787.369455][ T253] ___sys_sendmsg+0xee/0x170 [ 5787.369455][ T253] __sys_sendmsg+0xcd/0x170 [ 5787.369455][ T253] do_syscall_64+0xc6/0x1e0 [ 5787.369455][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5787.369455][ T253] [ 5787.371718][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5787.371718][ T253] netdev_get_by_index+0x5e/0x80 [ 5787.371718][ T253] fib6_nh_init+0x3d8/0x1580 [ 5787.371718][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5787.371718][ T253] ip6_route_add+0x1c/0x140 [ 5787.371718][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5787.371718][ T253] addrconf_add_dev+0xe2/0x170 [ 5787.371718][ T253] inet6_addr_add+0x12f/0xa40 [ 5787.371718][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5787.371718][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5787.371718][ T253] netlink_rcv_skb+0x130/0x360 [ 5787.371718][ T253] netlink_unicast+0x449/0x710 [ 5787.371718][ T253] netlink_sendmsg+0x723/0xbe0 [ 5787.371718][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5787.371718][ T253] ___sys_sendmsg+0xee/0x170 [ 5787.371718][ T253] __sys_sendmsg+0xcd/0x170 [ 5787.371718][ T253] do_syscall_64+0xc6/0x1e0 [ 5787.371718][ T253] [ 5787.373983][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5787.373983][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5787.373983][ T253] ipv6_find_idev+0x102/0x170 [ 5787.373983][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5787.373983][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5787.373983][ T253] netlink_rcv_skb+0x130/0x360 [ 5787.373983][ T253] netlink_unicast+0x449/0x710 [ 5787.373983][ T253] netlink_sendmsg+0x723/0xbe0 [ 5787.373983][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5787.373983][ T253] ___sys_sendmsg+0xee/0x170 [ 5787.373983][ T253] __sys_sendmsg+0xcd/0x170 [ 5787.373983][ T253] do_syscall_64+0xc6/0x1e0 [ 5787.373983][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5787.373983][ T253] [ 5787.375736][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5787.375736][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5787.375736][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5787.375736][ T253] ipv6_find_idev+0x102/0x170 [ 5787.375736][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5787.375736][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5787.375736][ T253] netlink_rcv_skb+0x130/0x360 [ 5787.375736][ T253] netlink_unicast+0x449/0x710 [ 5787.375736][ T253] netlink_sendmsg+0x723/0xbe0 [ 5787.375736][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5787.375736][ T253] ___sys_sendmsg+0xee/0x170 [ 5787.375736][ T253] __sys_sendmsg+0xcd/0x170 [ 5787.375736][ T253] do_syscall_64+0xc6/0x1e0 [ 5787.375736][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5787.375736][ T253] [ 5797.402325][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5797.402824][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5797.402824][ T253] dst_init+0x84/0x4a0 [ 5797.402824][ T253] dst_alloc+0x97/0x150 [ 5797.402824][ T253] ip6_dst_alloc+0x23/0x90 [ 5797.402824][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5797.402824][ T253] ip6_pol_route+0x56f/0x840 [ 5797.402824][ T253] fib6_rule_lookup+0x334/0x630 [ 5797.402824][ T253] ip6_route_output_flags+0x259/0x480 [ 5797.402824][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5797.402824][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5797.402824][ T253] netlink_rcv_skb+0x130/0x360 [ 5797.402824][ T253] netlink_unicast+0x449/0x710 [ 5797.402824][ T253] netlink_sendmsg+0x723/0xbe0 [ 5797.402824][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5797.402824][ T253] ___sys_sendmsg+0xee/0x170 [ 5797.402824][ T253] __sys_sendmsg+0xcd/0x170 [ 5797.402824][ T253] do_syscall_64+0xc6/0x1e0 [ 5797.402824][ T253] [ 5797.405046][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5797.405046][ T253] netdev_get_by_index+0x5e/0x80 [ 5797.405046][ T253] fib6_nh_init+0x3d8/0x1580 [ 5797.405046][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5797.405046][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5797.405046][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5797.405046][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5797.405046][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5797.405046][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5797.405046][ T253] addrconf_dad_begin+0x310/0x670 [ 5797.405046][ T253] addrconf_dad_work+0x10b/0xab0 [ 5797.405046][ T253] process_one_work+0x84d/0x18a0 [ 5797.405046][ T253] worker_thread+0x587/0xd30 [ 5797.405046][ T253] kthread+0x28a/0x350 [ 5797.405046][ T253] ret_from_fork+0x31/0x70 [ 5797.405046][ T253] ret_from_fork_asm+0x1a/0x30 [ 5797.405046][ T253] [ 5797.407209][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5797.407209][ T253] netdev_get_by_index+0x5e/0x80 [ 5797.407209][ T253] fib6_nh_init+0x3d8/0x1580 [ 5797.407209][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5797.407209][ T253] ip6_route_add+0x1c/0x140 [ 5797.407209][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5797.407209][ T253] inet6_addr_add+0x4f8/0xa40 [ 5797.407209][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5797.407209][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5797.407209][ T253] netlink_rcv_skb+0x130/0x360 [ 5797.407209][ T253] netlink_unicast+0x449/0x710 [ 5797.407209][ T253] netlink_sendmsg+0x723/0xbe0 [ 5797.407209][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5797.407209][ T253] ___sys_sendmsg+0xee/0x170 [ 5797.407209][ T253] __sys_sendmsg+0xcd/0x170 [ 5797.407209][ T253] do_syscall_64+0xc6/0x1e0 [ 5797.407209][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5797.407209][ T253] [ 5797.409474][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5797.409474][ T253] netdev_get_by_index+0x5e/0x80 [ 5797.409474][ T253] fib6_nh_init+0x3d8/0x1580 [ 5797.409474][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5797.409474][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5797.409474][ T253] ipv6_add_addr+0x411/0x2000 [ 5797.409474][ T253] inet6_addr_add+0x30e/0xa40 [ 5797.409474][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5797.409474][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5797.409474][ T253] netlink_rcv_skb+0x130/0x360 [ 5797.409474][ T253] netlink_unicast+0x449/0x710 [ 5797.409474][ T253] netlink_sendmsg+0x723/0xbe0 [ 5797.409474][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5797.409474][ T253] ___sys_sendmsg+0xee/0x170 [ 5797.409474][ T253] __sys_sendmsg+0xcd/0x170 [ 5797.409474][ T253] do_syscall_64+0xc6/0x1e0 [ 5797.409474][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5797.409474][ T253] [ 5797.411732][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5797.411732][ T253] netdev_get_by_index+0x5e/0x80 [ 5797.411732][ T253] fib6_nh_init+0x3d8/0x1580 [ 5797.411732][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5797.411732][ T253] ip6_route_add+0x1c/0x140 [ 5797.411732][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5797.411732][ T253] addrconf_add_dev+0xe2/0x170 [ 5797.411732][ T253] inet6_addr_add+0x12f/0xa40 [ 5797.411732][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5797.411732][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5797.411732][ T253] netlink_rcv_skb+0x130/0x360 [ 5797.411732][ T253] netlink_unicast+0x449/0x710 [ 5797.411732][ T253] netlink_sendmsg+0x723/0xbe0 [ 5797.411732][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5797.411732][ T253] ___sys_sendmsg+0xee/0x170 [ 5797.411732][ T253] __sys_sendmsg+0xcd/0x170 [ 5797.411732][ T253] do_syscall_64+0xc6/0x1e0 [ 5797.411732][ T253] [ 5797.413959][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5797.413959][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5797.413959][ T253] ipv6_find_idev+0x102/0x170 [ 5797.413959][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5797.413959][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5797.413959][ T253] netlink_rcv_skb+0x130/0x360 [ 5797.413959][ T253] netlink_unicast+0x449/0x710 [ 5797.413959][ T253] netlink_sendmsg+0x723/0xbe0 [ 5797.413959][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5797.413959][ T253] ___sys_sendmsg+0xee/0x170 [ 5797.413959][ T253] __sys_sendmsg+0xcd/0x170 [ 5797.413959][ T253] do_syscall_64+0xc6/0x1e0 [ 5797.413959][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5797.413959][ T253] [ 5797.415693][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5797.415693][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5797.415693][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5797.415693][ T253] ipv6_find_idev+0x102/0x170 [ 5797.415693][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5797.415693][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5797.415693][ T253] netlink_rcv_skb+0x130/0x360 [ 5797.415693][ T253] netlink_unicast+0x449/0x710 [ 5797.415693][ T253] netlink_sendmsg+0x723/0xbe0 [ 5797.415693][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5797.415693][ T253] ___sys_sendmsg+0xee/0x170 [ 5797.415693][ T253] __sys_sendmsg+0xcd/0x170 [ 5797.415693][ T253] do_syscall_64+0xc6/0x1e0 [ 5797.415693][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5797.415693][ T253] [ 5807.658322][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5807.658799][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5807.658799][ T253] dst_init+0x84/0x4a0 [ 5807.658799][ T253] dst_alloc+0x97/0x150 [ 5807.658799][ T253] ip6_dst_alloc+0x23/0x90 [ 5807.658799][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5807.658799][ T253] ip6_pol_route+0x56f/0x840 [ 5807.658799][ T253] fib6_rule_lookup+0x334/0x630 [ 5807.658799][ T253] ip6_route_output_flags+0x259/0x480 [ 5807.658799][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5807.658799][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5807.658799][ T253] netlink_rcv_skb+0x130/0x360 [ 5807.658799][ T253] netlink_unicast+0x449/0x710 [ 5807.658799][ T253] netlink_sendmsg+0x723/0xbe0 [ 5807.658799][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5807.658799][ T253] ___sys_sendmsg+0xee/0x170 [ 5807.658799][ T253] __sys_sendmsg+0xcd/0x170 [ 5807.658799][ T253] do_syscall_64+0xc6/0x1e0 [ 5807.658799][ T253] [ 5807.661051][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5807.661051][ T253] netdev_get_by_index+0x5e/0x80 [ 5807.661051][ T253] fib6_nh_init+0x3d8/0x1580 [ 5807.661051][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5807.661051][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5807.661051][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5807.661051][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5807.661051][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5807.661051][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5807.661051][ T253] addrconf_dad_begin+0x310/0x670 [ 5807.661051][ T253] addrconf_dad_work+0x10b/0xab0 [ 5807.661051][ T253] process_one_work+0x84d/0x18a0 [ 5807.661051][ T253] worker_thread+0x587/0xd30 [ 5807.661051][ T253] kthread+0x28a/0x350 [ 5807.661051][ T253] ret_from_fork+0x31/0x70 [ 5807.661051][ T253] ret_from_fork_asm+0x1a/0x30 [ 5807.661051][ T253] [ 5807.663312][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5807.663312][ T253] netdev_get_by_index+0x5e/0x80 [ 5807.663312][ T253] fib6_nh_init+0x3d8/0x1580 [ 5807.663312][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5807.663312][ T253] ip6_route_add+0x1c/0x140 [ 5807.663312][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5807.663312][ T253] inet6_addr_add+0x4f8/0xa40 [ 5807.663312][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5807.663312][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5807.663312][ T253] netlink_rcv_skb+0x130/0x360 [ 5807.663312][ T253] netlink_unicast+0x449/0x710 [ 5807.663312][ T253] netlink_sendmsg+0x723/0xbe0 [ 5807.663312][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5807.663312][ T253] ___sys_sendmsg+0xee/0x170 [ 5807.663312][ T253] __sys_sendmsg+0xcd/0x170 [ 5807.663312][ T253] do_syscall_64+0xc6/0x1e0 [ 5807.663312][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5807.663312][ T253] [ 5807.665549][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5807.665549][ T253] netdev_get_by_index+0x5e/0x80 [ 5807.665549][ T253] fib6_nh_init+0x3d8/0x1580 [ 5807.665549][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5807.665549][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5807.665549][ T253] ipv6_add_addr+0x411/0x2000 [ 5807.665549][ T253] inet6_addr_add+0x30e/0xa40 [ 5807.665549][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5807.665549][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5807.665549][ T253] netlink_rcv_skb+0x130/0x360 [ 5807.665549][ T253] netlink_unicast+0x449/0x710 [ 5807.665549][ T253] netlink_sendmsg+0x723/0xbe0 [ 5807.665549][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5807.665549][ T253] ___sys_sendmsg+0xee/0x170 [ 5807.665549][ T253] __sys_sendmsg+0xcd/0x170 [ 5807.665549][ T253] do_syscall_64+0xc6/0x1e0 [ 5807.665549][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5807.665549][ T253] [ 5807.667795][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5807.667795][ T253] netdev_get_by_index+0x5e/0x80 [ 5807.667795][ T253] fib6_nh_init+0x3d8/0x1580 [ 5807.667795][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5807.667795][ T253] ip6_route_add+0x1c/0x140 [ 5807.667795][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5807.667795][ T253] addrconf_add_dev+0xe2/0x170 [ 5807.667795][ T253] inet6_addr_add+0x12f/0xa40 [ 5807.667795][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5807.667795][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5807.667795][ T253] netlink_rcv_skb+0x130/0x360 [ 5807.667795][ T253] netlink_unicast+0x449/0x710 [ 5807.667795][ T253] netlink_sendmsg+0x723/0xbe0 [ 5807.667795][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5807.667795][ T253] ___sys_sendmsg+0xee/0x170 [ 5807.667795][ T253] __sys_sendmsg+0xcd/0x170 [ 5807.667795][ T253] do_syscall_64+0xc6/0x1e0 [ 5807.667795][ T253] [ 5807.669996][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5807.669996][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5807.669996][ T253] ipv6_find_idev+0x102/0x170 [ 5807.669996][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5807.669996][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5807.669996][ T253] netlink_rcv_skb+0x130/0x360 [ 5807.669996][ T253] netlink_unicast+0x449/0x710 [ 5807.669996][ T253] netlink_sendmsg+0x723/0xbe0 [ 5807.669996][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5807.669996][ T253] ___sys_sendmsg+0xee/0x170 [ 5807.669996][ T253] __sys_sendmsg+0xcd/0x170 [ 5807.669996][ T253] do_syscall_64+0xc6/0x1e0 [ 5807.669996][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5807.669996][ T253] [ 5807.671721][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5807.671721][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5807.671721][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5807.671721][ T253] ipv6_find_idev+0x102/0x170 [ 5807.671721][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5807.671721][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5807.671721][ T253] netlink_rcv_skb+0x130/0x360 [ 5807.671721][ T253] netlink_unicast+0x449/0x710 [ 5807.671721][ T253] netlink_sendmsg+0x723/0xbe0 [ 5807.671721][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5807.671721][ T253] ___sys_sendmsg+0xee/0x170 [ 5807.671721][ T253] __sys_sendmsg+0xcd/0x170 [ 5807.671721][ T253] do_syscall_64+0xc6/0x1e0 [ 5807.671721][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5807.671721][ T253] [ 5817.914339][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5817.914807][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5817.914807][ T253] dst_init+0x84/0x4a0 [ 5817.914807][ T253] dst_alloc+0x97/0x150 [ 5817.914807][ T253] ip6_dst_alloc+0x23/0x90 [ 5817.914807][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5817.914807][ T253] ip6_pol_route+0x56f/0x840 [ 5817.914807][ T253] fib6_rule_lookup+0x334/0x630 [ 5817.914807][ T253] ip6_route_output_flags+0x259/0x480 [ 5817.914807][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5817.914807][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5817.914807][ T253] netlink_rcv_skb+0x130/0x360 [ 5817.914807][ T253] netlink_unicast+0x449/0x710 [ 5817.914807][ T253] netlink_sendmsg+0x723/0xbe0 [ 5817.914807][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5817.914807][ T253] ___sys_sendmsg+0xee/0x170 [ 5817.914807][ T253] __sys_sendmsg+0xcd/0x170 [ 5817.914807][ T253] do_syscall_64+0xc6/0x1e0 [ 5817.914807][ T253] [ 5817.916976][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5817.916976][ T253] netdev_get_by_index+0x5e/0x80 [ 5817.916976][ T253] fib6_nh_init+0x3d8/0x1580 [ 5817.916976][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5817.916976][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5817.916976][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5817.916976][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5817.916976][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5817.916976][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5817.916976][ T253] addrconf_dad_begin+0x310/0x670 [ 5817.916976][ T253] addrconf_dad_work+0x10b/0xab0 [ 5817.916976][ T253] process_one_work+0x84d/0x18a0 [ 5817.916976][ T253] worker_thread+0x587/0xd30 [ 5817.916976][ T253] kthread+0x28a/0x350 [ 5817.916976][ T253] ret_from_fork+0x31/0x70 [ 5817.916976][ T253] ret_from_fork_asm+0x1a/0x30 [ 5817.916976][ T253] [ 5817.919137][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5817.919137][ T253] netdev_get_by_index+0x5e/0x80 [ 5817.919137][ T253] fib6_nh_init+0x3d8/0x1580 [ 5817.919137][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5817.919137][ T253] ip6_route_add+0x1c/0x140 [ 5817.919137][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5817.919137][ T253] inet6_addr_add+0x4f8/0xa40 [ 5817.919137][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5817.919137][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5817.919137][ T253] netlink_rcv_skb+0x130/0x360 [ 5817.919137][ T253] netlink_unicast+0x449/0x710 [ 5817.919137][ T253] netlink_sendmsg+0x723/0xbe0 [ 5817.919137][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5817.919137][ T253] ___sys_sendmsg+0xee/0x170 [ 5817.919137][ T253] __sys_sendmsg+0xcd/0x170 [ 5817.919137][ T253] do_syscall_64+0xc6/0x1e0 [ 5817.919137][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5817.919137][ T253] [ 5817.921380][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5817.921380][ T253] netdev_get_by_index+0x5e/0x80 [ 5817.921380][ T253] fib6_nh_init+0x3d8/0x1580 [ 5817.921380][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5817.921380][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5817.921380][ T253] ipv6_add_addr+0x411/0x2000 [ 5817.921380][ T253] inet6_addr_add+0x30e/0xa40 [ 5817.921380][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5817.921380][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5817.921380][ T253] netlink_rcv_skb+0x130/0x360 [ 5817.921380][ T253] netlink_unicast+0x449/0x710 [ 5817.921380][ T253] netlink_sendmsg+0x723/0xbe0 [ 5817.921380][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5817.921380][ T253] ___sys_sendmsg+0xee/0x170 [ 5817.921380][ T253] __sys_sendmsg+0xcd/0x170 [ 5817.921380][ T253] do_syscall_64+0xc6/0x1e0 [ 5817.921380][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5817.921380][ T253] [ 5817.923643][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5817.923643][ T253] netdev_get_by_index+0x5e/0x80 [ 5817.923643][ T253] fib6_nh_init+0x3d8/0x1580 [ 5817.923643][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5817.923643][ T253] ip6_route_add+0x1c/0x140 [ 5817.923643][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5817.923643][ T253] addrconf_add_dev+0xe2/0x170 [ 5817.923643][ T253] inet6_addr_add+0x12f/0xa40 [ 5817.923643][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5817.923643][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5817.923643][ T253] netlink_rcv_skb+0x130/0x360 [ 5817.923643][ T253] netlink_unicast+0x449/0x710 [ 5817.923643][ T253] netlink_sendmsg+0x723/0xbe0 [ 5817.923643][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5817.923643][ T253] ___sys_sendmsg+0xee/0x170 [ 5817.923643][ T253] __sys_sendmsg+0xcd/0x170 [ 5817.923643][ T253] do_syscall_64+0xc6/0x1e0 [ 5817.923643][ T253] [ 5817.925841][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5817.925841][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5817.925841][ T253] ipv6_find_idev+0x102/0x170 [ 5817.925841][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5817.925841][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5817.925841][ T253] netlink_rcv_skb+0x130/0x360 [ 5817.925841][ T253] netlink_unicast+0x449/0x710 [ 5817.925841][ T253] netlink_sendmsg+0x723/0xbe0 [ 5817.925841][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5817.925841][ T253] ___sys_sendmsg+0xee/0x170 [ 5817.925841][ T253] __sys_sendmsg+0xcd/0x170 [ 5817.925841][ T253] do_syscall_64+0xc6/0x1e0 [ 5817.925841][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5817.925841][ T253] [ 5817.927566][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5817.927566][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5817.927566][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5817.927566][ T253] ipv6_find_idev+0x102/0x170 [ 5817.927566][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5817.927566][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5817.927566][ T253] netlink_rcv_skb+0x130/0x360 [ 5817.927566][ T253] netlink_unicast+0x449/0x710 [ 5817.927566][ T253] netlink_sendmsg+0x723/0xbe0 [ 5817.927566][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5817.927566][ T253] ___sys_sendmsg+0xee/0x170 [ 5817.927566][ T253] __sys_sendmsg+0xcd/0x170 [ 5817.927566][ T253] do_syscall_64+0xc6/0x1e0 [ 5817.927566][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5817.927566][ T253] [ 5827.938312][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5827.938778][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5827.938778][ T253] dst_init+0x84/0x4a0 [ 5827.938778][ T253] dst_alloc+0x97/0x150 [ 5827.938778][ T253] ip6_dst_alloc+0x23/0x90 [ 5827.938778][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5827.938778][ T253] ip6_pol_route+0x56f/0x840 [ 5827.938778][ T253] fib6_rule_lookup+0x334/0x630 [ 5827.938778][ T253] ip6_route_output_flags+0x259/0x480 [ 5827.938778][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5827.938778][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5827.938778][ T253] netlink_rcv_skb+0x130/0x360 [ 5827.938778][ T253] netlink_unicast+0x449/0x710 [ 5827.938778][ T253] netlink_sendmsg+0x723/0xbe0 [ 5827.938778][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5827.938778][ T253] ___sys_sendmsg+0xee/0x170 [ 5827.938778][ T253] __sys_sendmsg+0xcd/0x170 [ 5827.938778][ T253] do_syscall_64+0xc6/0x1e0 [ 5827.938778][ T253] [ 5827.940970][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5827.940970][ T253] netdev_get_by_index+0x5e/0x80 [ 5827.940970][ T253] fib6_nh_init+0x3d8/0x1580 [ 5827.940970][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5827.940970][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5827.940970][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5827.940970][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5827.940970][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5827.940970][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5827.940970][ T253] addrconf_dad_begin+0x310/0x670 [ 5827.940970][ T253] addrconf_dad_work+0x10b/0xab0 [ 5827.940970][ T253] process_one_work+0x84d/0x18a0 [ 5827.940970][ T253] worker_thread+0x587/0xd30 [ 5827.940970][ T253] kthread+0x28a/0x350 [ 5827.940970][ T253] ret_from_fork+0x31/0x70 [ 5827.940970][ T253] ret_from_fork_asm+0x1a/0x30 [ 5827.940970][ T253] [ 5827.943126][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5827.943126][ T253] netdev_get_by_index+0x5e/0x80 [ 5827.943126][ T253] fib6_nh_init+0x3d8/0x1580 [ 5827.943126][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5827.943126][ T253] ip6_route_add+0x1c/0x140 [ 5827.943126][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5827.943126][ T253] inet6_addr_add+0x4f8/0xa40 [ 5827.943126][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5827.943126][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5827.943126][ T253] netlink_rcv_skb+0x130/0x360 [ 5827.943126][ T253] netlink_unicast+0x449/0x710 [ 5827.943126][ T253] netlink_sendmsg+0x723/0xbe0 [ 5827.943126][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5827.943126][ T253] ___sys_sendmsg+0xee/0x170 [ 5827.943126][ T253] __sys_sendmsg+0xcd/0x170 [ 5827.943126][ T253] do_syscall_64+0xc6/0x1e0 [ 5827.943126][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5827.943126][ T253] [ 5827.945369][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5827.945369][ T253] netdev_get_by_index+0x5e/0x80 [ 5827.945369][ T253] fib6_nh_init+0x3d8/0x1580 [ 5827.945369][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5827.945369][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5827.945369][ T253] ipv6_add_addr+0x411/0x2000 [ 5827.945369][ T253] inet6_addr_add+0x30e/0xa40 [ 5827.945369][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5827.945369][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5827.945369][ T253] netlink_rcv_skb+0x130/0x360 [ 5827.945369][ T253] netlink_unicast+0x449/0x710 [ 5827.945369][ T253] netlink_sendmsg+0x723/0xbe0 [ 5827.945369][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5827.945369][ T253] ___sys_sendmsg+0xee/0x170 [ 5827.945369][ T253] __sys_sendmsg+0xcd/0x170 [ 5827.945369][ T253] do_syscall_64+0xc6/0x1e0 [ 5827.945369][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5827.945369][ T253] [ 5827.947613][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5827.947613][ T253] netdev_get_by_index+0x5e/0x80 [ 5827.947613][ T253] fib6_nh_init+0x3d8/0x1580 [ 5827.947613][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5827.947613][ T253] ip6_route_add+0x1c/0x140 [ 5827.947613][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5827.947613][ T253] addrconf_add_dev+0xe2/0x170 [ 5827.947613][ T253] inet6_addr_add+0x12f/0xa40 [ 5827.947613][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5827.947613][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5827.947613][ T253] netlink_rcv_skb+0x130/0x360 [ 5827.947613][ T253] netlink_unicast+0x449/0x710 [ 5827.947613][ T253] netlink_sendmsg+0x723/0xbe0 [ 5827.947613][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5827.947613][ T253] ___sys_sendmsg+0xee/0x170 [ 5827.947613][ T253] __sys_sendmsg+0xcd/0x170 [ 5827.947613][ T253] do_syscall_64+0xc6/0x1e0 [ 5827.947613][ T253] [ 5827.949816][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5827.949816][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5827.949816][ T253] ipv6_find_idev+0x102/0x170 [ 5827.949816][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5827.949816][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5827.949816][ T253] netlink_rcv_skb+0x130/0x360 [ 5827.949816][ T253] netlink_unicast+0x449/0x710 [ 5827.949816][ T253] netlink_sendmsg+0x723/0xbe0 [ 5827.949816][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5827.949816][ T253] ___sys_sendmsg+0xee/0x170 [ 5827.949816][ T253] __sys_sendmsg+0xcd/0x170 [ 5827.949816][ T253] do_syscall_64+0xc6/0x1e0 [ 5827.949816][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5827.949816][ T253] [ 5827.951543][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5827.951543][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5827.951543][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5827.951543][ T253] ipv6_find_idev+0x102/0x170 [ 5827.951543][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5827.951543][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5827.951543][ T253] netlink_rcv_skb+0x130/0x360 [ 5827.951543][ T253] netlink_unicast+0x449/0x710 [ 5827.951543][ T253] netlink_sendmsg+0x723/0xbe0 [ 5827.951543][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5827.951543][ T253] ___sys_sendmsg+0xee/0x170 [ 5827.951543][ T253] __sys_sendmsg+0xcd/0x170 [ 5827.951543][ T253] do_syscall_64+0xc6/0x1e0 [ 5827.951543][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5827.951543][ T253] [ 5838.194311][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5838.194800][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5838.194800][ T253] dst_init+0x84/0x4a0 [ 5838.194800][ T253] dst_alloc+0x97/0x150 [ 5838.194800][ T253] ip6_dst_alloc+0x23/0x90 [ 5838.194800][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5838.194800][ T253] ip6_pol_route+0x56f/0x840 [ 5838.194800][ T253] fib6_rule_lookup+0x334/0x630 [ 5838.194800][ T253] ip6_route_output_flags+0x259/0x480 [ 5838.194800][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5838.194800][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5838.194800][ T253] netlink_rcv_skb+0x130/0x360 [ 5838.194800][ T253] netlink_unicast+0x449/0x710 [ 5838.194800][ T253] netlink_sendmsg+0x723/0xbe0 [ 5838.194800][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5838.194800][ T253] ___sys_sendmsg+0xee/0x170 [ 5838.194800][ T253] __sys_sendmsg+0xcd/0x170 [ 5838.194800][ T253] do_syscall_64+0xc6/0x1e0 [ 5838.194800][ T253] [ 5838.196992][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5838.196992][ T253] netdev_get_by_index+0x5e/0x80 [ 5838.196992][ T253] fib6_nh_init+0x3d8/0x1580 [ 5838.196992][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5838.196992][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5838.196992][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5838.196992][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5838.196992][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5838.196992][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5838.196992][ T253] addrconf_dad_begin+0x310/0x670 [ 5838.196992][ T253] addrconf_dad_work+0x10b/0xab0 [ 5838.196992][ T253] process_one_work+0x84d/0x18a0 [ 5838.196992][ T253] worker_thread+0x587/0xd30 [ 5838.196992][ T253] kthread+0x28a/0x350 [ 5838.196992][ T253] ret_from_fork+0x31/0x70 [ 5838.196992][ T253] ret_from_fork_asm+0x1a/0x30 [ 5838.196992][ T253] [ 5838.199266][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5838.199266][ T253] netdev_get_by_index+0x5e/0x80 [ 5838.199266][ T253] fib6_nh_init+0x3d8/0x1580 [ 5838.199266][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5838.199266][ T253] ip6_route_add+0x1c/0x140 [ 5838.199266][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5838.199266][ T253] inet6_addr_add+0x4f8/0xa40 [ 5838.199266][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5838.199266][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5838.199266][ T253] netlink_rcv_skb+0x130/0x360 [ 5838.199266][ T253] netlink_unicast+0x449/0x710 [ 5838.199266][ T253] netlink_sendmsg+0x723/0xbe0 [ 5838.199266][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5838.199266][ T253] ___sys_sendmsg+0xee/0x170 [ 5838.199266][ T253] __sys_sendmsg+0xcd/0x170 [ 5838.199266][ T253] do_syscall_64+0xc6/0x1e0 [ 5838.199266][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5838.199266][ T253] [ 5838.201518][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5838.201518][ T253] netdev_get_by_index+0x5e/0x80 [ 5838.201518][ T253] fib6_nh_init+0x3d8/0x1580 [ 5838.201518][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5838.201518][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5838.201518][ T253] ipv6_add_addr+0x411/0x2000 [ 5838.201518][ T253] inet6_addr_add+0x30e/0xa40 [ 5838.201518][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5838.201518][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5838.201518][ T253] netlink_rcv_skb+0x130/0x360 [ 5838.201518][ T253] netlink_unicast+0x449/0x710 [ 5838.201518][ T253] netlink_sendmsg+0x723/0xbe0 [ 5838.201518][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5838.201518][ T253] ___sys_sendmsg+0xee/0x170 [ 5838.201518][ T253] __sys_sendmsg+0xcd/0x170 [ 5838.201518][ T253] do_syscall_64+0xc6/0x1e0 [ 5838.201518][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5838.201518][ T253] [ 5838.203774][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5838.203774][ T253] netdev_get_by_index+0x5e/0x80 [ 5838.203774][ T253] fib6_nh_init+0x3d8/0x1580 [ 5838.203774][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5838.203774][ T253] ip6_route_add+0x1c/0x140 [ 5838.203774][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5838.203774][ T253] addrconf_add_dev+0xe2/0x170 [ 5838.203774][ T253] inet6_addr_add+0x12f/0xa40 [ 5838.203774][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5838.203774][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5838.203774][ T253] netlink_rcv_skb+0x130/0x360 [ 5838.203774][ T253] netlink_unicast+0x449/0x710 [ 5838.203774][ T253] netlink_sendmsg+0x723/0xbe0 [ 5838.203774][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5838.203774][ T253] ___sys_sendmsg+0xee/0x170 [ 5838.203774][ T253] __sys_sendmsg+0xcd/0x170 [ 5838.203774][ T253] do_syscall_64+0xc6/0x1e0 [ 5838.203774][ T253] [ 5838.205973][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5838.205973][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5838.205973][ T253] ipv6_find_idev+0x102/0x170 [ 5838.205973][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5838.205973][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5838.205973][ T253] netlink_rcv_skb+0x130/0x360 [ 5838.205973][ T253] netlink_unicast+0x449/0x710 [ 5838.205973][ T253] netlink_sendmsg+0x723/0xbe0 [ 5838.205973][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5838.205973][ T253] ___sys_sendmsg+0xee/0x170 [ 5838.205973][ T253] __sys_sendmsg+0xcd/0x170 [ 5838.205973][ T253] do_syscall_64+0xc6/0x1e0 [ 5838.205973][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5838.205973][ T253] [ 5838.207692][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5838.207692][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5838.207692][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5838.207692][ T253] ipv6_find_idev+0x102/0x170 [ 5838.207692][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5838.207692][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5838.207692][ T253] netlink_rcv_skb+0x130/0x360 [ 5838.207692][ T253] netlink_unicast+0x449/0x710 [ 5838.207692][ T253] netlink_sendmsg+0x723/0xbe0 [ 5838.207692][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5838.207692][ T253] ___sys_sendmsg+0xee/0x170 [ 5838.207692][ T253] __sys_sendmsg+0xcd/0x170 [ 5838.207692][ T253] do_syscall_64+0xc6/0x1e0 [ 5838.207692][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5838.207692][ T253] [ 5848.338311][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5848.338720][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5848.338720][ T253] dst_init+0x84/0x4a0 [ 5848.338720][ T253] dst_alloc+0x97/0x150 [ 5848.338720][ T253] ip6_dst_alloc+0x23/0x90 [ 5848.338720][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5848.338720][ T253] ip6_pol_route+0x56f/0x840 [ 5848.338720][ T253] fib6_rule_lookup+0x334/0x630 [ 5848.338720][ T253] ip6_route_output_flags+0x259/0x480 [ 5848.338720][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5848.338720][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5848.338720][ T253] netlink_rcv_skb+0x130/0x360 [ 5848.338720][ T253] netlink_unicast+0x449/0x710 [ 5848.338720][ T253] netlink_sendmsg+0x723/0xbe0 [ 5848.338720][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5848.338720][ T253] ___sys_sendmsg+0xee/0x170 [ 5848.338720][ T253] __sys_sendmsg+0xcd/0x170 [ 5848.338720][ T253] do_syscall_64+0xc6/0x1e0 [ 5848.338720][ T253] [ 5848.340917][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5848.340917][ T253] netdev_get_by_index+0x5e/0x80 [ 5848.340917][ T253] fib6_nh_init+0x3d8/0x1580 [ 5848.340917][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5848.340917][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5848.340917][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5848.340917][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5848.340917][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5848.340917][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5848.340917][ T253] addrconf_dad_begin+0x310/0x670 [ 5848.340917][ T253] addrconf_dad_work+0x10b/0xab0 [ 5848.340917][ T253] process_one_work+0x84d/0x18a0 [ 5848.340917][ T253] worker_thread+0x587/0xd30 [ 5848.340917][ T253] kthread+0x28a/0x350 [ 5848.340917][ T253] ret_from_fork+0x31/0x70 [ 5848.340917][ T253] ret_from_fork_asm+0x1a/0x30 [ 5848.340917][ T253] [ 5848.343064][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5848.343064][ T253] netdev_get_by_index+0x5e/0x80 [ 5848.343064][ T253] fib6_nh_init+0x3d8/0x1580 [ 5848.343064][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5848.343064][ T253] ip6_route_add+0x1c/0x140 [ 5848.343064][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5848.343064][ T253] inet6_addr_add+0x4f8/0xa40 [ 5848.343064][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5848.343064][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5848.343064][ T253] netlink_rcv_skb+0x130/0x360 [ 5848.343064][ T253] netlink_unicast+0x449/0x710 [ 5848.343064][ T253] netlink_sendmsg+0x723/0xbe0 [ 5848.343064][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5848.343064][ T253] ___sys_sendmsg+0xee/0x170 [ 5848.343064][ T253] __sys_sendmsg+0xcd/0x170 [ 5848.343064][ T253] do_syscall_64+0xc6/0x1e0 [ 5848.343064][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5848.343064][ T253] [ 5848.345299][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5848.345299][ T253] netdev_get_by_index+0x5e/0x80 [ 5848.345299][ T253] fib6_nh_init+0x3d8/0x1580 [ 5848.345299][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5848.345299][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5848.345299][ T253] ipv6_add_addr+0x411/0x2000 [ 5848.345299][ T253] inet6_addr_add+0x30e/0xa40 [ 5848.345299][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5848.345299][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5848.345299][ T253] netlink_rcv_skb+0x130/0x360 [ 5848.345299][ T253] netlink_unicast+0x449/0x710 [ 5848.345299][ T253] netlink_sendmsg+0x723/0xbe0 [ 5848.345299][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5848.345299][ T253] ___sys_sendmsg+0xee/0x170 [ 5848.345299][ T253] __sys_sendmsg+0xcd/0x170 [ 5848.345299][ T253] do_syscall_64+0xc6/0x1e0 [ 5848.345299][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5848.345299][ T253] [ 5848.347539][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5848.347539][ T253] netdev_get_by_index+0x5e/0x80 [ 5848.347539][ T253] fib6_nh_init+0x3d8/0x1580 [ 5848.347539][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5848.347539][ T253] ip6_route_add+0x1c/0x140 [ 5848.347539][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5848.347539][ T253] addrconf_add_dev+0xe2/0x170 [ 5848.347539][ T253] inet6_addr_add+0x12f/0xa40 [ 5848.347539][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5848.347539][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5848.347539][ T253] netlink_rcv_skb+0x130/0x360 [ 5848.347539][ T253] netlink_unicast+0x449/0x710 [ 5848.347539][ T253] netlink_sendmsg+0x723/0xbe0 [ 5848.347539][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5848.347539][ T253] ___sys_sendmsg+0xee/0x170 [ 5848.347539][ T253] __sys_sendmsg+0xcd/0x170 [ 5848.347539][ T253] do_syscall_64+0xc6/0x1e0 [ 5848.347539][ T253] [ 5848.349745][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5848.349745][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5848.349745][ T253] ipv6_find_idev+0x102/0x170 [ 5848.349745][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5848.349745][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5848.349745][ T253] netlink_rcv_skb+0x130/0x360 [ 5848.349745][ T253] netlink_unicast+0x449/0x710 [ 5848.349745][ T253] netlink_sendmsg+0x723/0xbe0 [ 5848.349745][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5848.349745][ T253] ___sys_sendmsg+0xee/0x170 [ 5848.349745][ T253] __sys_sendmsg+0xcd/0x170 [ 5848.349745][ T253] do_syscall_64+0xc6/0x1e0 [ 5848.349745][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5848.349745][ T253] [ 5848.351469][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5848.351469][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5848.351469][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5848.351469][ T253] ipv6_find_idev+0x102/0x170 [ 5848.351469][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5848.351469][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5848.351469][ T253] netlink_rcv_skb+0x130/0x360 [ 5848.351469][ T253] netlink_unicast+0x449/0x710 [ 5848.351469][ T253] netlink_sendmsg+0x723/0xbe0 [ 5848.351469][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5848.351469][ T253] ___sys_sendmsg+0xee/0x170 [ 5848.351469][ T253] __sys_sendmsg+0xcd/0x170 [ 5848.351469][ T253] do_syscall_64+0xc6/0x1e0 [ 5848.351469][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5848.351469][ T253] [ 5858.386308][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5858.386781][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5858.386781][ T253] dst_init+0x84/0x4a0 [ 5858.386781][ T253] dst_alloc+0x97/0x150 [ 5858.386781][ T253] ip6_dst_alloc+0x23/0x90 [ 5858.386781][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5858.386781][ T253] ip6_pol_route+0x56f/0x840 [ 5858.386781][ T253] fib6_rule_lookup+0x334/0x630 [ 5858.386781][ T253] ip6_route_output_flags+0x259/0x480 [ 5858.386781][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5858.386781][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5858.386781][ T253] netlink_rcv_skb+0x130/0x360 [ 5858.386781][ T253] netlink_unicast+0x449/0x710 [ 5858.386781][ T253] netlink_sendmsg+0x723/0xbe0 [ 5858.386781][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5858.386781][ T253] ___sys_sendmsg+0xee/0x170 [ 5858.386781][ T253] __sys_sendmsg+0xcd/0x170 [ 5858.386781][ T253] do_syscall_64+0xc6/0x1e0 [ 5858.386781][ T253] [ 5858.388964][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5858.388964][ T253] netdev_get_by_index+0x5e/0x80 [ 5858.388964][ T253] fib6_nh_init+0x3d8/0x1580 [ 5858.388964][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5858.388964][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5858.388964][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5858.388964][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5858.388964][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5858.388964][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5858.388964][ T253] addrconf_dad_begin+0x310/0x670 [ 5858.388964][ T253] addrconf_dad_work+0x10b/0xab0 [ 5858.388964][ T253] process_one_work+0x84d/0x18a0 [ 5858.388964][ T253] worker_thread+0x587/0xd30 [ 5858.388964][ T253] kthread+0x28a/0x350 [ 5858.388964][ T253] ret_from_fork+0x31/0x70 [ 5858.388964][ T253] ret_from_fork_asm+0x1a/0x30 [ 5858.388964][ T253] [ 5858.391098][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5858.391098][ T253] netdev_get_by_index+0x5e/0x80 [ 5858.391098][ T253] fib6_nh_init+0x3d8/0x1580 [ 5858.391098][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5858.391098][ T253] ip6_route_add+0x1c/0x140 [ 5858.391098][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5858.391098][ T253] inet6_addr_add+0x4f8/0xa40 [ 5858.391098][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5858.391098][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5858.391098][ T253] netlink_rcv_skb+0x130/0x360 [ 5858.391098][ T253] netlink_unicast+0x449/0x710 [ 5858.391098][ T253] netlink_sendmsg+0x723/0xbe0 [ 5858.391098][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5858.391098][ T253] ___sys_sendmsg+0xee/0x170 [ 5858.391098][ T253] __sys_sendmsg+0xcd/0x170 [ 5858.391098][ T253] do_syscall_64+0xc6/0x1e0 [ 5858.391098][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5858.391098][ T253] [ 5858.393346][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5858.393346][ T253] netdev_get_by_index+0x5e/0x80 [ 5858.393346][ T253] fib6_nh_init+0x3d8/0x1580 [ 5858.393346][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5858.393346][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5858.393346][ T253] ipv6_add_addr+0x411/0x2000 [ 5858.393346][ T253] inet6_addr_add+0x30e/0xa40 [ 5858.393346][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5858.393346][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5858.393346][ T253] netlink_rcv_skb+0x130/0x360 [ 5858.393346][ T253] netlink_unicast+0x449/0x710 [ 5858.393346][ T253] netlink_sendmsg+0x723/0xbe0 [ 5858.393346][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5858.393346][ T253] ___sys_sendmsg+0xee/0x170 [ 5858.393346][ T253] __sys_sendmsg+0xcd/0x170 [ 5858.393346][ T253] do_syscall_64+0xc6/0x1e0 [ 5858.393346][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5858.393346][ T253] [ 5858.395584][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5858.395584][ T253] netdev_get_by_index+0x5e/0x80 [ 5858.395584][ T253] fib6_nh_init+0x3d8/0x1580 [ 5858.395584][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5858.395584][ T253] ip6_route_add+0x1c/0x140 [ 5858.395584][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5858.395584][ T253] addrconf_add_dev+0xe2/0x170 [ 5858.395584][ T253] inet6_addr_add+0x12f/0xa40 [ 5858.395584][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5858.395584][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5858.395584][ T253] netlink_rcv_skb+0x130/0x360 [ 5858.395584][ T253] netlink_unicast+0x449/0x710 [ 5858.395584][ T253] netlink_sendmsg+0x723/0xbe0 [ 5858.395584][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5858.395584][ T253] ___sys_sendmsg+0xee/0x170 [ 5858.395584][ T253] __sys_sendmsg+0xcd/0x170 [ 5858.395584][ T253] do_syscall_64+0xc6/0x1e0 [ 5858.395584][ T253] [ 5858.397784][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5858.397784][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5858.397784][ T253] ipv6_find_idev+0x102/0x170 [ 5858.397784][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5858.397784][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5858.397784][ T253] netlink_rcv_skb+0x130/0x360 [ 5858.397784][ T253] netlink_unicast+0x449/0x710 [ 5858.397784][ T253] netlink_sendmsg+0x723/0xbe0 [ 5858.397784][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5858.397784][ T253] ___sys_sendmsg+0xee/0x170 [ 5858.397784][ T253] __sys_sendmsg+0xcd/0x170 [ 5858.397784][ T253] do_syscall_64+0xc6/0x1e0 [ 5858.397784][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5858.397784][ T253] [ 5858.399519][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5858.399519][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5858.399519][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5858.399519][ T253] ipv6_find_idev+0x102/0x170 [ 5858.399519][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5858.399519][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5858.399519][ T253] netlink_rcv_skb+0x130/0x360 [ 5858.399519][ T253] netlink_unicast+0x449/0x710 [ 5858.399519][ T253] netlink_sendmsg+0x723/0xbe0 [ 5858.399519][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5858.399519][ T253] ___sys_sendmsg+0xee/0x170 [ 5858.399519][ T253] __sys_sendmsg+0xcd/0x170 [ 5858.399519][ T253] do_syscall_64+0xc6/0x1e0 [ 5858.399519][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5858.399519][ T253] [ 5868.522324][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5868.522789][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5868.522789][ T253] dst_init+0x84/0x4a0 [ 5868.522789][ T253] dst_alloc+0x97/0x150 [ 5868.522789][ T253] ip6_dst_alloc+0x23/0x90 [ 5868.522789][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5868.522789][ T253] ip6_pol_route+0x56f/0x840 [ 5868.522789][ T253] fib6_rule_lookup+0x334/0x630 [ 5868.522789][ T253] ip6_route_output_flags+0x259/0x480 [ 5868.522789][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5868.522789][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5868.522789][ T253] netlink_rcv_skb+0x130/0x360 [ 5868.522789][ T253] netlink_unicast+0x449/0x710 [ 5868.522789][ T253] netlink_sendmsg+0x723/0xbe0 [ 5868.522789][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5868.522789][ T253] ___sys_sendmsg+0xee/0x170 [ 5868.522789][ T253] __sys_sendmsg+0xcd/0x170 [ 5868.522789][ T253] do_syscall_64+0xc6/0x1e0 [ 5868.522789][ T253] [ 5868.524992][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5868.524992][ T253] netdev_get_by_index+0x5e/0x80 [ 5868.524992][ T253] fib6_nh_init+0x3d8/0x1580 [ 5868.524992][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5868.524992][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5868.524992][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5868.524992][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5868.524992][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5868.524992][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5868.524992][ T253] addrconf_dad_begin+0x310/0x670 [ 5868.524992][ T253] addrconf_dad_work+0x10b/0xab0 [ 5868.524992][ T253] process_one_work+0x84d/0x18a0 [ 5868.524992][ T253] worker_thread+0x587/0xd30 [ 5868.524992][ T253] kthread+0x28a/0x350 [ 5868.524992][ T253] ret_from_fork+0x31/0x70 [ 5868.524992][ T253] ret_from_fork_asm+0x1a/0x30 [ 5868.524992][ T253] [ 5868.527134][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5868.527134][ T253] netdev_get_by_index+0x5e/0x80 [ 5868.527134][ T253] fib6_nh_init+0x3d8/0x1580 [ 5868.527134][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5868.527134][ T253] ip6_route_add+0x1c/0x140 [ 5868.527134][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5868.527134][ T253] inet6_addr_add+0x4f8/0xa40 [ 5868.527134][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5868.527134][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5868.527134][ T253] netlink_rcv_skb+0x130/0x360 [ 5868.527134][ T253] netlink_unicast+0x449/0x710 [ 5868.527134][ T253] netlink_sendmsg+0x723/0xbe0 [ 5868.527134][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5868.527134][ T253] ___sys_sendmsg+0xee/0x170 [ 5868.527134][ T253] __sys_sendmsg+0xcd/0x170 [ 5868.527134][ T253] do_syscall_64+0xc6/0x1e0 [ 5868.527134][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5868.527134][ T253] [ 5868.529390][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5868.529390][ T253] netdev_get_by_index+0x5e/0x80 [ 5868.529390][ T253] fib6_nh_init+0x3d8/0x1580 [ 5868.529390][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5868.529390][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5868.529390][ T253] ipv6_add_addr+0x411/0x2000 [ 5868.529390][ T253] inet6_addr_add+0x30e/0xa40 [ 5868.529390][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5868.529390][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5868.529390][ T253] netlink_rcv_skb+0x130/0x360 [ 5868.529390][ T253] netlink_unicast+0x449/0x710 [ 5868.529390][ T253] netlink_sendmsg+0x723/0xbe0 [ 5868.529390][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5868.529390][ T253] ___sys_sendmsg+0xee/0x170 [ 5868.529390][ T253] __sys_sendmsg+0xcd/0x170 [ 5868.529390][ T253] do_syscall_64+0xc6/0x1e0 [ 5868.529390][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5868.529390][ T253] [ 5868.531635][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5868.531635][ T253] netdev_get_by_index+0x5e/0x80 [ 5868.531635][ T253] fib6_nh_init+0x3d8/0x1580 [ 5868.531635][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5868.531635][ T253] ip6_route_add+0x1c/0x140 [ 5868.531635][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5868.531635][ T253] addrconf_add_dev+0xe2/0x170 [ 5868.531635][ T253] inet6_addr_add+0x12f/0xa40 [ 5868.531635][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5868.531635][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5868.531635][ T253] netlink_rcv_skb+0x130/0x360 [ 5868.531635][ T253] netlink_unicast+0x449/0x710 [ 5868.531635][ T253] netlink_sendmsg+0x723/0xbe0 [ 5868.531635][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5868.531635][ T253] ___sys_sendmsg+0xee/0x170 [ 5868.531635][ T253] __sys_sendmsg+0xcd/0x170 [ 5868.531635][ T253] do_syscall_64+0xc6/0x1e0 [ 5868.531635][ T253] [ 5868.533854][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5868.533854][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5868.533854][ T253] ipv6_find_idev+0x102/0x170 [ 5868.533854][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5868.533854][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5868.533854][ T253] netlink_rcv_skb+0x130/0x360 [ 5868.533854][ T253] netlink_unicast+0x449/0x710 [ 5868.533854][ T253] netlink_sendmsg+0x723/0xbe0 [ 5868.533854][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5868.533854][ T253] ___sys_sendmsg+0xee/0x170 [ 5868.533854][ T253] __sys_sendmsg+0xcd/0x170 [ 5868.533854][ T253] do_syscall_64+0xc6/0x1e0 [ 5868.533854][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5868.533854][ T253] [ 5868.535578][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5868.535578][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5868.535578][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5868.535578][ T253] ipv6_find_idev+0x102/0x170 [ 5868.535578][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5868.535578][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5868.535578][ T253] netlink_rcv_skb+0x130/0x360 [ 5868.535578][ T253] netlink_unicast+0x449/0x710 [ 5868.535578][ T253] netlink_sendmsg+0x723/0xbe0 [ 5868.535578][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5868.535578][ T253] ___sys_sendmsg+0xee/0x170 [ 5868.535578][ T253] __sys_sendmsg+0xcd/0x170 [ 5868.535578][ T253] do_syscall_64+0xc6/0x1e0 [ 5868.535578][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5868.535578][ T253] [ 5878.778305][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5878.778773][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5878.778773][ T253] dst_init+0x84/0x4a0 [ 5878.778773][ T253] dst_alloc+0x97/0x150 [ 5878.778773][ T253] ip6_dst_alloc+0x23/0x90 [ 5878.778773][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5878.778773][ T253] ip6_pol_route+0x56f/0x840 [ 5878.778773][ T253] fib6_rule_lookup+0x334/0x630 [ 5878.778773][ T253] ip6_route_output_flags+0x259/0x480 [ 5878.778773][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5878.778773][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5878.778773][ T253] netlink_rcv_skb+0x130/0x360 [ 5878.778773][ T253] netlink_unicast+0x449/0x710 [ 5878.778773][ T253] netlink_sendmsg+0x723/0xbe0 [ 5878.778773][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5878.778773][ T253] ___sys_sendmsg+0xee/0x170 [ 5878.778773][ T253] __sys_sendmsg+0xcd/0x170 [ 5878.778773][ T253] do_syscall_64+0xc6/0x1e0 [ 5878.778773][ T253] [ 5878.780972][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5878.780972][ T253] netdev_get_by_index+0x5e/0x80 [ 5878.780972][ T253] fib6_nh_init+0x3d8/0x1580 [ 5878.780972][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5878.780972][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5878.780972][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5878.780972][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5878.780972][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5878.780972][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5878.780972][ T253] addrconf_dad_begin+0x310/0x670 [ 5878.780972][ T253] addrconf_dad_work+0x10b/0xab0 [ 5878.780972][ T253] process_one_work+0x84d/0x18a0 [ 5878.780972][ T253] worker_thread+0x587/0xd30 [ 5878.780972][ T253] kthread+0x28a/0x350 [ 5878.780972][ T253] ret_from_fork+0x31/0x70 [ 5878.780972][ T253] ret_from_fork_asm+0x1a/0x30 [ 5878.780972][ T253] [ 5878.783134][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5878.783134][ T253] netdev_get_by_index+0x5e/0x80 [ 5878.783134][ T253] fib6_nh_init+0x3d8/0x1580 [ 5878.783134][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5878.783134][ T253] ip6_route_add+0x1c/0x140 [ 5878.783134][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5878.783134][ T253] inet6_addr_add+0x4f8/0xa40 [ 5878.783134][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5878.783134][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5878.783134][ T253] netlink_rcv_skb+0x130/0x360 [ 5878.783134][ T253] netlink_unicast+0x449/0x710 [ 5878.783134][ T253] netlink_sendmsg+0x723/0xbe0 [ 5878.783134][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5878.783134][ T253] ___sys_sendmsg+0xee/0x170 [ 5878.783134][ T253] __sys_sendmsg+0xcd/0x170 [ 5878.783134][ T253] do_syscall_64+0xc6/0x1e0 [ 5878.783134][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5878.783134][ T253] [ 5878.785377][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5878.785377][ T253] netdev_get_by_index+0x5e/0x80 [ 5878.785377][ T253] fib6_nh_init+0x3d8/0x1580 [ 5878.785377][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5878.785377][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5878.785377][ T253] ipv6_add_addr+0x411/0x2000 [ 5878.785377][ T253] inet6_addr_add+0x30e/0xa40 [ 5878.785377][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5878.785377][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5878.785377][ T253] netlink_rcv_skb+0x130/0x360 [ 5878.785377][ T253] netlink_unicast+0x449/0x710 [ 5878.785377][ T253] netlink_sendmsg+0x723/0xbe0 [ 5878.785377][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5878.785377][ T253] ___sys_sendmsg+0xee/0x170 [ 5878.785377][ T253] __sys_sendmsg+0xcd/0x170 [ 5878.785377][ T253] do_syscall_64+0xc6/0x1e0 [ 5878.785377][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5878.785377][ T253] [ 5878.787615][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5878.787615][ T253] netdev_get_by_index+0x5e/0x80 [ 5878.787615][ T253] fib6_nh_init+0x3d8/0x1580 [ 5878.787615][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5878.787615][ T253] ip6_route_add+0x1c/0x140 [ 5878.787615][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5878.787615][ T253] addrconf_add_dev+0xe2/0x170 [ 5878.787615][ T253] inet6_addr_add+0x12f/0xa40 [ 5878.787615][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5878.787615][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5878.787615][ T253] netlink_rcv_skb+0x130/0x360 [ 5878.787615][ T253] netlink_unicast+0x449/0x710 [ 5878.787615][ T253] netlink_sendmsg+0x723/0xbe0 [ 5878.787615][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5878.787615][ T253] ___sys_sendmsg+0xee/0x170 [ 5878.787615][ T253] __sys_sendmsg+0xcd/0x170 [ 5878.787615][ T253] do_syscall_64+0xc6/0x1e0 [ 5878.787615][ T253] [ 5878.789821][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5878.789821][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5878.789821][ T253] ipv6_find_idev+0x102/0x170 [ 5878.789821][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5878.789821][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5878.789821][ T253] netlink_rcv_skb+0x130/0x360 [ 5878.789821][ T253] netlink_unicast+0x449/0x710 [ 5878.789821][ T253] netlink_sendmsg+0x723/0xbe0 [ 5878.789821][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5878.789821][ T253] ___sys_sendmsg+0xee/0x170 [ 5878.789821][ T253] __sys_sendmsg+0xcd/0x170 [ 5878.789821][ T253] do_syscall_64+0xc6/0x1e0 [ 5878.789821][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5878.789821][ T253] [ 5878.791546][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5878.791546][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5878.791546][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5878.791546][ T253] ipv6_find_idev+0x102/0x170 [ 5878.791546][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5878.791546][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5878.791546][ T253] netlink_rcv_skb+0x130/0x360 [ 5878.791546][ T253] netlink_unicast+0x449/0x710 [ 5878.791546][ T253] netlink_sendmsg+0x723/0xbe0 [ 5878.791546][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5878.791546][ T253] ___sys_sendmsg+0xee/0x170 [ 5878.791546][ T253] __sys_sendmsg+0xcd/0x170 [ 5878.791546][ T253] do_syscall_64+0xc6/0x1e0 [ 5878.791546][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5878.791546][ T253] [ 5889.034304][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5889.034773][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5889.034773][ T253] dst_init+0x84/0x4a0 [ 5889.034773][ T253] dst_alloc+0x97/0x150 [ 5889.034773][ T253] ip6_dst_alloc+0x23/0x90 [ 5889.034773][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5889.034773][ T253] ip6_pol_route+0x56f/0x840 [ 5889.034773][ T253] fib6_rule_lookup+0x334/0x630 [ 5889.034773][ T253] ip6_route_output_flags+0x259/0x480 [ 5889.034773][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5889.034773][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5889.034773][ T253] netlink_rcv_skb+0x130/0x360 [ 5889.034773][ T253] netlink_unicast+0x449/0x710 [ 5889.034773][ T253] netlink_sendmsg+0x723/0xbe0 [ 5889.034773][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5889.034773][ T253] ___sys_sendmsg+0xee/0x170 [ 5889.034773][ T253] __sys_sendmsg+0xcd/0x170 [ 5889.034773][ T253] do_syscall_64+0xc6/0x1e0 [ 5889.034773][ T253] [ 5889.036968][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5889.036968][ T253] netdev_get_by_index+0x5e/0x80 [ 5889.036968][ T253] fib6_nh_init+0x3d8/0x1580 [ 5889.036968][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5889.036968][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5889.036968][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5889.036968][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5889.036968][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5889.036968][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5889.036968][ T253] addrconf_dad_begin+0x310/0x670 [ 5889.036968][ T253] addrconf_dad_work+0x10b/0xab0 [ 5889.036968][ T253] process_one_work+0x84d/0x18a0 [ 5889.036968][ T253] worker_thread+0x587/0xd30 [ 5889.036968][ T253] kthread+0x28a/0x350 [ 5889.036968][ T253] ret_from_fork+0x31/0x70 [ 5889.036968][ T253] ret_from_fork_asm+0x1a/0x30 [ 5889.036968][ T253] [ 5889.039127][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5889.039127][ T253] netdev_get_by_index+0x5e/0x80 [ 5889.039127][ T253] fib6_nh_init+0x3d8/0x1580 [ 5889.039127][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5889.039127][ T253] ip6_route_add+0x1c/0x140 [ 5889.039127][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5889.039127][ T253] inet6_addr_add+0x4f8/0xa40 [ 5889.039127][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5889.039127][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5889.039127][ T253] netlink_rcv_skb+0x130/0x360 [ 5889.039127][ T253] netlink_unicast+0x449/0x710 [ 5889.039127][ T253] netlink_sendmsg+0x723/0xbe0 [ 5889.039127][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5889.039127][ T253] ___sys_sendmsg+0xee/0x170 [ 5889.039127][ T253] __sys_sendmsg+0xcd/0x170 [ 5889.039127][ T253] do_syscall_64+0xc6/0x1e0 [ 5889.039127][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5889.039127][ T253] [ 5889.041480][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5889.041480][ T253] netdev_get_by_index+0x5e/0x80 [ 5889.041480][ T253] fib6_nh_init+0x3d8/0x1580 [ 5889.041480][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5889.041480][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5889.041480][ T253] ipv6_add_addr+0x411/0x2000 [ 5889.041480][ T253] inet6_addr_add+0x30e/0xa40 [ 5889.041480][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5889.041480][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5889.041480][ T253] netlink_rcv_skb+0x130/0x360 [ 5889.041480][ T253] netlink_unicast+0x449/0x710 [ 5889.041480][ T253] netlink_sendmsg+0x723/0xbe0 [ 5889.041480][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5889.041480][ T253] ___sys_sendmsg+0xee/0x170 [ 5889.041480][ T253] __sys_sendmsg+0xcd/0x170 [ 5889.041480][ T253] do_syscall_64+0xc6/0x1e0 [ 5889.041480][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5889.041480][ T253] [ 5889.043731][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5889.043731][ T253] netdev_get_by_index+0x5e/0x80 [ 5889.043731][ T253] fib6_nh_init+0x3d8/0x1580 [ 5889.043731][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5889.043731][ T253] ip6_route_add+0x1c/0x140 [ 5889.043731][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5889.043731][ T253] addrconf_add_dev+0xe2/0x170 [ 5889.043731][ T253] inet6_addr_add+0x12f/0xa40 [ 5889.043731][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5889.043731][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5889.043731][ T253] netlink_rcv_skb+0x130/0x360 [ 5889.043731][ T253] netlink_unicast+0x449/0x710 [ 5889.043731][ T253] netlink_sendmsg+0x723/0xbe0 [ 5889.043731][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5889.043731][ T253] ___sys_sendmsg+0xee/0x170 [ 5889.043731][ T253] __sys_sendmsg+0xcd/0x170 [ 5889.043731][ T253] do_syscall_64+0xc6/0x1e0 [ 5889.043731][ T253] [ 5889.045930][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5889.045930][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5889.045930][ T253] ipv6_find_idev+0x102/0x170 [ 5889.045930][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5889.045930][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5889.045930][ T253] netlink_rcv_skb+0x130/0x360 [ 5889.045930][ T253] netlink_unicast+0x449/0x710 [ 5889.045930][ T253] netlink_sendmsg+0x723/0xbe0 [ 5889.045930][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5889.045930][ T253] ___sys_sendmsg+0xee/0x170 [ 5889.045930][ T253] __sys_sendmsg+0xcd/0x170 [ 5889.045930][ T253] do_syscall_64+0xc6/0x1e0 [ 5889.045930][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5889.045930][ T253] [ 5889.047652][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5889.047652][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5889.047652][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5889.047652][ T253] ipv6_find_idev+0x102/0x170 [ 5889.047652][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5889.047652][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5889.047652][ T253] netlink_rcv_skb+0x130/0x360 [ 5889.047652][ T253] netlink_unicast+0x449/0x710 [ 5889.047652][ T253] netlink_sendmsg+0x723/0xbe0 [ 5889.047652][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5889.047652][ T253] ___sys_sendmsg+0xee/0x170 [ 5889.047652][ T253] __sys_sendmsg+0xcd/0x170 [ 5889.047652][ T253] do_syscall_64+0xc6/0x1e0 [ 5889.047652][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5889.047652][ T253] [ 5899.058330][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5899.058811][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5899.058811][ T253] dst_init+0x84/0x4a0 [ 5899.058811][ T253] dst_alloc+0x97/0x150 [ 5899.058811][ T253] ip6_dst_alloc+0x23/0x90 [ 5899.058811][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5899.058811][ T253] ip6_pol_route+0x56f/0x840 [ 5899.058811][ T253] fib6_rule_lookup+0x334/0x630 [ 5899.058811][ T253] ip6_route_output_flags+0x259/0x480 [ 5899.058811][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5899.058811][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5899.058811][ T253] netlink_rcv_skb+0x130/0x360 [ 5899.058811][ T253] netlink_unicast+0x449/0x710 [ 5899.058811][ T253] netlink_sendmsg+0x723/0xbe0 [ 5899.058811][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5899.058811][ T253] ___sys_sendmsg+0xee/0x170 [ 5899.058811][ T253] __sys_sendmsg+0xcd/0x170 [ 5899.058811][ T253] do_syscall_64+0xc6/0x1e0 [ 5899.058811][ T253] [ 5899.061126][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5899.061126][ T253] netdev_get_by_index+0x5e/0x80 [ 5899.061126][ T253] fib6_nh_init+0x3d8/0x1580 [ 5899.061126][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5899.061126][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5899.061126][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5899.061126][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5899.061126][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5899.061126][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5899.061126][ T253] addrconf_dad_begin+0x310/0x670 [ 5899.061126][ T253] addrconf_dad_work+0x10b/0xab0 [ 5899.061126][ T253] process_one_work+0x84d/0x18a0 [ 5899.061126][ T253] worker_thread+0x587/0xd30 [ 5899.061126][ T253] kthread+0x28a/0x350 [ 5899.061126][ T253] ret_from_fork+0x31/0x70 [ 5899.061126][ T253] ret_from_fork_asm+0x1a/0x30 [ 5899.061126][ T253] [ 5899.063286][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5899.063286][ T253] netdev_get_by_index+0x5e/0x80 [ 5899.063286][ T253] fib6_nh_init+0x3d8/0x1580 [ 5899.063286][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5899.063286][ T253] ip6_route_add+0x1c/0x140 [ 5899.063286][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5899.063286][ T253] inet6_addr_add+0x4f8/0xa40 [ 5899.063286][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5899.063286][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5899.063286][ T253] netlink_rcv_skb+0x130/0x360 [ 5899.063286][ T253] netlink_unicast+0x449/0x710 [ 5899.063286][ T253] netlink_sendmsg+0x723/0xbe0 [ 5899.063286][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5899.063286][ T253] ___sys_sendmsg+0xee/0x170 [ 5899.063286][ T253] __sys_sendmsg+0xcd/0x170 [ 5899.063286][ T253] do_syscall_64+0xc6/0x1e0 [ 5899.063286][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5899.063286][ T253] [ 5899.065524][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5899.065524][ T253] netdev_get_by_index+0x5e/0x80 [ 5899.065524][ T253] fib6_nh_init+0x3d8/0x1580 [ 5899.065524][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5899.065524][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5899.065524][ T253] ipv6_add_addr+0x411/0x2000 [ 5899.065524][ T253] inet6_addr_add+0x30e/0xa40 [ 5899.065524][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5899.065524][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5899.065524][ T253] netlink_rcv_skb+0x130/0x360 [ 5899.065524][ T253] netlink_unicast+0x449/0x710 [ 5899.065524][ T253] netlink_sendmsg+0x723/0xbe0 [ 5899.065524][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5899.065524][ T253] ___sys_sendmsg+0xee/0x170 [ 5899.065524][ T253] __sys_sendmsg+0xcd/0x170 [ 5899.065524][ T253] do_syscall_64+0xc6/0x1e0 [ 5899.065524][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5899.065524][ T253] [ 5899.067777][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5899.067777][ T253] netdev_get_by_index+0x5e/0x80 [ 5899.067777][ T253] fib6_nh_init+0x3d8/0x1580 [ 5899.067777][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5899.067777][ T253] ip6_route_add+0x1c/0x140 [ 5899.067777][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5899.067777][ T253] addrconf_add_dev+0xe2/0x170 [ 5899.067777][ T253] inet6_addr_add+0x12f/0xa40 [ 5899.067777][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5899.067777][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5899.067777][ T253] netlink_rcv_skb+0x130/0x360 [ 5899.067777][ T253] netlink_unicast+0x449/0x710 [ 5899.067777][ T253] netlink_sendmsg+0x723/0xbe0 [ 5899.067777][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5899.067777][ T253] ___sys_sendmsg+0xee/0x170 [ 5899.067777][ T253] __sys_sendmsg+0xcd/0x170 [ 5899.067777][ T253] do_syscall_64+0xc6/0x1e0 [ 5899.067777][ T253] [ 5899.069986][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5899.069986][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5899.069986][ T253] ipv6_find_idev+0x102/0x170 [ 5899.069986][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5899.069986][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5899.069986][ T253] netlink_rcv_skb+0x130/0x360 [ 5899.069986][ T253] netlink_unicast+0x449/0x710 [ 5899.069986][ T253] netlink_sendmsg+0x723/0xbe0 [ 5899.069986][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5899.069986][ T253] ___sys_sendmsg+0xee/0x170 [ 5899.069986][ T253] __sys_sendmsg+0xcd/0x170 [ 5899.069986][ T253] do_syscall_64+0xc6/0x1e0 [ 5899.069986][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5899.069986][ T253] [ 5899.071716][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5899.071716][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5899.071716][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5899.071716][ T253] ipv6_find_idev+0x102/0x170 [ 5899.071716][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5899.071716][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5899.071716][ T253] netlink_rcv_skb+0x130/0x360 [ 5899.071716][ T253] netlink_unicast+0x449/0x710 [ 5899.071716][ T253] netlink_sendmsg+0x723/0xbe0 [ 5899.071716][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5899.071716][ T253] ___sys_sendmsg+0xee/0x170 [ 5899.071716][ T253] __sys_sendmsg+0xcd/0x170 [ 5899.071716][ T253] do_syscall_64+0xc6/0x1e0 [ 5899.071716][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5899.071716][ T253] [ 5909.314303][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5909.314772][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5909.314772][ T253] dst_init+0x84/0x4a0 [ 5909.314772][ T253] dst_alloc+0x97/0x150 [ 5909.314772][ T253] ip6_dst_alloc+0x23/0x90 [ 5909.314772][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5909.314772][ T253] ip6_pol_route+0x56f/0x840 [ 5909.314772][ T253] fib6_rule_lookup+0x334/0x630 [ 5909.314772][ T253] ip6_route_output_flags+0x259/0x480 [ 5909.314772][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5909.314772][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5909.314772][ T253] netlink_rcv_skb+0x130/0x360 [ 5909.314772][ T253] netlink_unicast+0x449/0x710 [ 5909.314772][ T253] netlink_sendmsg+0x723/0xbe0 [ 5909.314772][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5909.314772][ T253] ___sys_sendmsg+0xee/0x170 [ 5909.314772][ T253] __sys_sendmsg+0xcd/0x170 [ 5909.314772][ T253] do_syscall_64+0xc6/0x1e0 [ 5909.314772][ T253] [ 5909.316977][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5909.316977][ T253] netdev_get_by_index+0x5e/0x80 [ 5909.316977][ T253] fib6_nh_init+0x3d8/0x1580 [ 5909.316977][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5909.316977][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5909.316977][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5909.316977][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5909.316977][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5909.316977][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5909.316977][ T253] addrconf_dad_begin+0x310/0x670 [ 5909.316977][ T253] addrconf_dad_work+0x10b/0xab0 [ 5909.316977][ T253] process_one_work+0x84d/0x18a0 [ 5909.316977][ T253] worker_thread+0x587/0xd30 [ 5909.316977][ T253] kthread+0x28a/0x350 [ 5909.316977][ T253] ret_from_fork+0x31/0x70 [ 5909.316977][ T253] ret_from_fork_asm+0x1a/0x30 [ 5909.316977][ T253] [ 5909.319115][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5909.319115][ T253] netdev_get_by_index+0x5e/0x80 [ 5909.319115][ T253] fib6_nh_init+0x3d8/0x1580 [ 5909.319115][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5909.319115][ T253] ip6_route_add+0x1c/0x140 [ 5909.319115][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5909.319115][ T253] inet6_addr_add+0x4f8/0xa40 [ 5909.319115][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5909.319115][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5909.319115][ T253] netlink_rcv_skb+0x130/0x360 [ 5909.319115][ T253] netlink_unicast+0x449/0x710 [ 5909.319115][ T253] netlink_sendmsg+0x723/0xbe0 [ 5909.319115][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5909.319115][ T253] ___sys_sendmsg+0xee/0x170 [ 5909.319115][ T253] __sys_sendmsg+0xcd/0x170 [ 5909.319115][ T253] do_syscall_64+0xc6/0x1e0 [ 5909.319115][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5909.319115][ T253] [ 5909.321359][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5909.321359][ T253] netdev_get_by_index+0x5e/0x80 [ 5909.321359][ T253] fib6_nh_init+0x3d8/0x1580 [ 5909.321359][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5909.321359][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5909.321359][ T253] ipv6_add_addr+0x411/0x2000 [ 5909.321359][ T253] inet6_addr_add+0x30e/0xa40 [ 5909.321359][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5909.321359][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5909.321359][ T253] netlink_rcv_skb+0x130/0x360 [ 5909.321359][ T253] netlink_unicast+0x449/0x710 [ 5909.321359][ T253] netlink_sendmsg+0x723/0xbe0 [ 5909.321359][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5909.321359][ T253] ___sys_sendmsg+0xee/0x170 [ 5909.321359][ T253] __sys_sendmsg+0xcd/0x170 [ 5909.321359][ T253] do_syscall_64+0xc6/0x1e0 [ 5909.321359][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5909.321359][ T253] [ 5909.323613][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5909.323613][ T253] netdev_get_by_index+0x5e/0x80 [ 5909.323613][ T253] fib6_nh_init+0x3d8/0x1580 [ 5909.323613][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5909.323613][ T253] ip6_route_add+0x1c/0x140 [ 5909.323613][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5909.323613][ T253] addrconf_add_dev+0xe2/0x170 [ 5909.323613][ T253] inet6_addr_add+0x12f/0xa40 [ 5909.323613][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5909.323613][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5909.323613][ T253] netlink_rcv_skb+0x130/0x360 [ 5909.323613][ T253] netlink_unicast+0x449/0x710 [ 5909.323613][ T253] netlink_sendmsg+0x723/0xbe0 [ 5909.323613][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5909.323613][ T253] ___sys_sendmsg+0xee/0x170 [ 5909.323613][ T253] __sys_sendmsg+0xcd/0x170 [ 5909.323613][ T253] do_syscall_64+0xc6/0x1e0 [ 5909.323613][ T253] [ 5909.325810][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5909.325810][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5909.325810][ T253] ipv6_find_idev+0x102/0x170 [ 5909.325810][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5909.325810][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5909.325810][ T253] netlink_rcv_skb+0x130/0x360 [ 5909.325810][ T253] netlink_unicast+0x449/0x710 [ 5909.325810][ T253] netlink_sendmsg+0x723/0xbe0 [ 5909.325810][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5909.325810][ T253] ___sys_sendmsg+0xee/0x170 [ 5909.325810][ T253] __sys_sendmsg+0xcd/0x170 [ 5909.325810][ T253] do_syscall_64+0xc6/0x1e0 [ 5909.325810][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5909.325810][ T253] [ 5909.327536][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5909.327536][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5909.327536][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5909.327536][ T253] ipv6_find_idev+0x102/0x170 [ 5909.327536][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5909.327536][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5909.327536][ T253] netlink_rcv_skb+0x130/0x360 [ 5909.327536][ T253] netlink_unicast+0x449/0x710 [ 5909.327536][ T253] netlink_sendmsg+0x723/0xbe0 [ 5909.327536][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5909.327536][ T253] ___sys_sendmsg+0xee/0x170 [ 5909.327536][ T253] __sys_sendmsg+0xcd/0x170 [ 5909.327536][ T253] do_syscall_64+0xc6/0x1e0 [ 5909.327536][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5909.327536][ T253] [ 5919.530301][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5919.530767][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5919.530767][ T253] dst_init+0x84/0x4a0 [ 5919.530767][ T253] dst_alloc+0x97/0x150 [ 5919.530767][ T253] ip6_dst_alloc+0x23/0x90 [ 5919.530767][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5919.530767][ T253] ip6_pol_route+0x56f/0x840 [ 5919.530767][ T253] fib6_rule_lookup+0x334/0x630 [ 5919.530767][ T253] ip6_route_output_flags+0x259/0x480 [ 5919.530767][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5919.530767][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5919.530767][ T253] netlink_rcv_skb+0x130/0x360 [ 5919.530767][ T253] netlink_unicast+0x449/0x710 [ 5919.530767][ T253] netlink_sendmsg+0x723/0xbe0 [ 5919.530767][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5919.530767][ T253] ___sys_sendmsg+0xee/0x170 [ 5919.530767][ T253] __sys_sendmsg+0xcd/0x170 [ 5919.530767][ T253] do_syscall_64+0xc6/0x1e0 [ 5919.530767][ T253] [ 5919.533001][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5919.533001][ T253] netdev_get_by_index+0x5e/0x80 [ 5919.533001][ T253] fib6_nh_init+0x3d8/0x1580 [ 5919.533001][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5919.533001][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5919.533001][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5919.533001][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5919.533001][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5919.533001][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5919.533001][ T253] addrconf_dad_begin+0x310/0x670 [ 5919.533001][ T253] addrconf_dad_work+0x10b/0xab0 [ 5919.533001][ T253] process_one_work+0x84d/0x18a0 [ 5919.533001][ T253] worker_thread+0x587/0xd30 [ 5919.533001][ T253] kthread+0x28a/0x350 [ 5919.533001][ T253] ret_from_fork+0x31/0x70 [ 5919.533001][ T253] ret_from_fork_asm+0x1a/0x30 [ 5919.533001][ T253] [ 5919.535180][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5919.535180][ T253] netdev_get_by_index+0x5e/0x80 [ 5919.535180][ T253] fib6_nh_init+0x3d8/0x1580 [ 5919.535180][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5919.535180][ T253] ip6_route_add+0x1c/0x140 [ 5919.535180][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5919.535180][ T253] inet6_addr_add+0x4f8/0xa40 [ 5919.535180][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5919.535180][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5919.535180][ T253] netlink_rcv_skb+0x130/0x360 [ 5919.535180][ T253] netlink_unicast+0x449/0x710 [ 5919.535180][ T253] netlink_sendmsg+0x723/0xbe0 [ 5919.535180][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5919.535180][ T253] ___sys_sendmsg+0xee/0x170 [ 5919.535180][ T253] __sys_sendmsg+0xcd/0x170 [ 5919.535180][ T253] do_syscall_64+0xc6/0x1e0 [ 5919.535180][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5919.535180][ T253] [ 5919.537453][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5919.537453][ T253] netdev_get_by_index+0x5e/0x80 [ 5919.537453][ T253] fib6_nh_init+0x3d8/0x1580 [ 5919.537453][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5919.537453][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5919.537453][ T253] ipv6_add_addr+0x411/0x2000 [ 5919.537453][ T253] inet6_addr_add+0x30e/0xa40 [ 5919.537453][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5919.537453][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5919.537453][ T253] netlink_rcv_skb+0x130/0x360 [ 5919.537453][ T253] netlink_unicast+0x449/0x710 [ 5919.537453][ T253] netlink_sendmsg+0x723/0xbe0 [ 5919.537453][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5919.537453][ T253] ___sys_sendmsg+0xee/0x170 [ 5919.537453][ T253] __sys_sendmsg+0xcd/0x170 [ 5919.537453][ T253] do_syscall_64+0xc6/0x1e0 [ 5919.537453][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5919.537453][ T253] [ 5919.539708][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5919.539708][ T253] netdev_get_by_index+0x5e/0x80 [ 5919.539708][ T253] fib6_nh_init+0x3d8/0x1580 [ 5919.539708][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5919.539708][ T253] ip6_route_add+0x1c/0x140 [ 5919.539708][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5919.539708][ T253] addrconf_add_dev+0xe2/0x170 [ 5919.539708][ T253] inet6_addr_add+0x12f/0xa40 [ 5919.539708][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5919.539708][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5919.539708][ T253] netlink_rcv_skb+0x130/0x360 [ 5919.539708][ T253] netlink_unicast+0x449/0x710 [ 5919.539708][ T253] netlink_sendmsg+0x723/0xbe0 [ 5919.539708][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5919.539708][ T253] ___sys_sendmsg+0xee/0x170 [ 5919.539708][ T253] __sys_sendmsg+0xcd/0x170 [ 5919.539708][ T253] do_syscall_64+0xc6/0x1e0 [ 5919.539708][ T253] [ 5919.541935][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5919.541935][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5919.541935][ T253] ipv6_find_idev+0x102/0x170 [ 5919.541935][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5919.541935][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5919.541935][ T253] netlink_rcv_skb+0x130/0x360 [ 5919.541935][ T253] netlink_unicast+0x449/0x710 [ 5919.541935][ T253] netlink_sendmsg+0x723/0xbe0 [ 5919.541935][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5919.541935][ T253] ___sys_sendmsg+0xee/0x170 [ 5919.541935][ T253] __sys_sendmsg+0xcd/0x170 [ 5919.541935][ T253] do_syscall_64+0xc6/0x1e0 [ 5919.541935][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5919.541935][ T253] [ 5919.543674][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5919.543674][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5919.543674][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5919.543674][ T253] ipv6_find_idev+0x102/0x170 [ 5919.543674][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5919.543674][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5919.543674][ T253] netlink_rcv_skb+0x130/0x360 [ 5919.543674][ T253] netlink_unicast+0x449/0x710 [ 5919.543674][ T253] netlink_sendmsg+0x723/0xbe0 [ 5919.543674][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5919.543674][ T253] ___sys_sendmsg+0xee/0x170 [ 5919.543674][ T253] __sys_sendmsg+0xcd/0x170 [ 5919.543674][ T253] do_syscall_64+0xc6/0x1e0 [ 5919.543674][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5919.543674][ T253] [ 5929.666298][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5929.666771][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5929.666771][ T253] dst_init+0x84/0x4a0 [ 5929.666771][ T253] dst_alloc+0x97/0x150 [ 5929.666771][ T253] ip6_dst_alloc+0x23/0x90 [ 5929.666771][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5929.666771][ T253] ip6_pol_route+0x56f/0x840 [ 5929.666771][ T253] fib6_rule_lookup+0x334/0x630 [ 5929.666771][ T253] ip6_route_output_flags+0x259/0x480 [ 5929.666771][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5929.666771][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5929.666771][ T253] netlink_rcv_skb+0x130/0x360 [ 5929.666771][ T253] netlink_unicast+0x449/0x710 [ 5929.666771][ T253] netlink_sendmsg+0x723/0xbe0 [ 5929.666771][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5929.666771][ T253] ___sys_sendmsg+0xee/0x170 [ 5929.666771][ T253] __sys_sendmsg+0xcd/0x170 [ 5929.666771][ T253] do_syscall_64+0xc6/0x1e0 [ 5929.666771][ T253] [ 5929.668936][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5929.668936][ T253] netdev_get_by_index+0x5e/0x80 [ 5929.668936][ T253] fib6_nh_init+0x3d8/0x1580 [ 5929.668936][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5929.668936][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5929.668936][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5929.668936][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5929.668936][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5929.668936][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5929.668936][ T253] addrconf_dad_begin+0x310/0x670 [ 5929.668936][ T253] addrconf_dad_work+0x10b/0xab0 [ 5929.668936][ T253] process_one_work+0x84d/0x18a0 [ 5929.668936][ T253] worker_thread+0x587/0xd30 [ 5929.668936][ T253] kthread+0x28a/0x350 [ 5929.668936][ T253] ret_from_fork+0x31/0x70 [ 5929.668936][ T253] ret_from_fork_asm+0x1a/0x30 [ 5929.668936][ T253] [ 5929.671102][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5929.671102][ T253] netdev_get_by_index+0x5e/0x80 [ 5929.671102][ T253] fib6_nh_init+0x3d8/0x1580 [ 5929.671102][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5929.671102][ T253] ip6_route_add+0x1c/0x140 [ 5929.671102][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5929.671102][ T253] inet6_addr_add+0x4f8/0xa40 [ 5929.671102][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5929.671102][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5929.671102][ T253] netlink_rcv_skb+0x130/0x360 [ 5929.671102][ T253] netlink_unicast+0x449/0x710 [ 5929.671102][ T253] netlink_sendmsg+0x723/0xbe0 [ 5929.671102][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5929.671102][ T253] ___sys_sendmsg+0xee/0x170 [ 5929.671102][ T253] __sys_sendmsg+0xcd/0x170 [ 5929.671102][ T253] do_syscall_64+0xc6/0x1e0 [ 5929.671102][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5929.671102][ T253] [ 5929.673390][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5929.673390][ T253] netdev_get_by_index+0x5e/0x80 [ 5929.673390][ T253] fib6_nh_init+0x3d8/0x1580 [ 5929.673390][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5929.673390][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5929.673390][ T253] ipv6_add_addr+0x411/0x2000 [ 5929.673390][ T253] inet6_addr_add+0x30e/0xa40 [ 5929.673390][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5929.673390][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5929.673390][ T253] netlink_rcv_skb+0x130/0x360 [ 5929.673390][ T253] netlink_unicast+0x449/0x710 [ 5929.673390][ T253] netlink_sendmsg+0x723/0xbe0 [ 5929.673390][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5929.673390][ T253] ___sys_sendmsg+0xee/0x170 [ 5929.673390][ T253] __sys_sendmsg+0xcd/0x170 [ 5929.673390][ T253] do_syscall_64+0xc6/0x1e0 [ 5929.673390][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5929.673390][ T253] [ 5929.675635][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5929.675635][ T253] netdev_get_by_index+0x5e/0x80 [ 5929.675635][ T253] fib6_nh_init+0x3d8/0x1580 [ 5929.675635][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5929.675635][ T253] ip6_route_add+0x1c/0x140 [ 5929.675635][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5929.675635][ T253] addrconf_add_dev+0xe2/0x170 [ 5929.675635][ T253] inet6_addr_add+0x12f/0xa40 [ 5929.675635][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5929.675635][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5929.675635][ T253] netlink_rcv_skb+0x130/0x360 [ 5929.675635][ T253] netlink_unicast+0x449/0x710 [ 5929.675635][ T253] netlink_sendmsg+0x723/0xbe0 [ 5929.675635][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5929.675635][ T253] ___sys_sendmsg+0xee/0x170 [ 5929.675635][ T253] __sys_sendmsg+0xcd/0x170 [ 5929.675635][ T253] do_syscall_64+0xc6/0x1e0 [ 5929.675635][ T253] [ 5929.677798][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5929.677798][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5929.677798][ T253] ipv6_find_idev+0x102/0x170 [ 5929.677798][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5929.677798][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5929.677798][ T253] netlink_rcv_skb+0x130/0x360 [ 5929.677798][ T253] netlink_unicast+0x449/0x710 [ 5929.677798][ T253] netlink_sendmsg+0x723/0xbe0 [ 5929.677798][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5929.677798][ T253] ___sys_sendmsg+0xee/0x170 [ 5929.677798][ T253] __sys_sendmsg+0xcd/0x170 [ 5929.677798][ T253] do_syscall_64+0xc6/0x1e0 [ 5929.677798][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5929.677798][ T253] [ 5929.679530][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5929.679530][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5929.679530][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5929.679530][ T253] ipv6_find_idev+0x102/0x170 [ 5929.679530][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5929.679530][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5929.679530][ T253] netlink_rcv_skb+0x130/0x360 [ 5929.679530][ T253] netlink_unicast+0x449/0x710 [ 5929.679530][ T253] netlink_sendmsg+0x723/0xbe0 [ 5929.679530][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5929.679530][ T253] ___sys_sendmsg+0xee/0x170 [ 5929.679530][ T253] __sys_sendmsg+0xcd/0x170 [ 5929.679530][ T253] do_syscall_64+0xc6/0x1e0 [ 5929.679530][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5929.679530][ T253] [ 5939.866328][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5939.866810][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5939.866810][ T253] dst_init+0x84/0x4a0 [ 5939.866810][ T253] dst_alloc+0x97/0x150 [ 5939.866810][ T253] ip6_dst_alloc+0x23/0x90 [ 5939.866810][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5939.866810][ T253] ip6_pol_route+0x56f/0x840 [ 5939.866810][ T253] fib6_rule_lookup+0x334/0x630 [ 5939.866810][ T253] ip6_route_output_flags+0x259/0x480 [ 5939.866810][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5939.866810][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5939.866810][ T253] netlink_rcv_skb+0x130/0x360 [ 5939.866810][ T253] netlink_unicast+0x449/0x710 [ 5939.866810][ T253] netlink_sendmsg+0x723/0xbe0 [ 5939.866810][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5939.866810][ T253] ___sys_sendmsg+0xee/0x170 [ 5939.866810][ T253] __sys_sendmsg+0xcd/0x170 [ 5939.866810][ T253] do_syscall_64+0xc6/0x1e0 [ 5939.866810][ T253] [ 5939.869032][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5939.869032][ T253] netdev_get_by_index+0x5e/0x80 [ 5939.869032][ T253] fib6_nh_init+0x3d8/0x1580 [ 5939.869032][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5939.869032][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5939.869032][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5939.869032][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5939.869032][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5939.869032][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5939.869032][ T253] addrconf_dad_begin+0x310/0x670 [ 5939.869032][ T253] addrconf_dad_work+0x10b/0xab0 [ 5939.869032][ T253] process_one_work+0x84d/0x18a0 [ 5939.869032][ T253] worker_thread+0x587/0xd30 [ 5939.869032][ T253] kthread+0x28a/0x350 [ 5939.869032][ T253] ret_from_fork+0x31/0x70 [ 5939.869032][ T253] ret_from_fork_asm+0x1a/0x30 [ 5939.869032][ T253] [ 5939.871193][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5939.871193][ T253] netdev_get_by_index+0x5e/0x80 [ 5939.871193][ T253] fib6_nh_init+0x3d8/0x1580 [ 5939.871193][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5939.871193][ T253] ip6_route_add+0x1c/0x140 [ 5939.871193][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5939.871193][ T253] inet6_addr_add+0x4f8/0xa40 [ 5939.871193][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5939.871193][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5939.871193][ T253] netlink_rcv_skb+0x130/0x360 [ 5939.871193][ T253] netlink_unicast+0x449/0x710 [ 5939.871193][ T253] netlink_sendmsg+0x723/0xbe0 [ 5939.871193][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5939.871193][ T253] ___sys_sendmsg+0xee/0x170 [ 5939.871193][ T253] __sys_sendmsg+0xcd/0x170 [ 5939.871193][ T253] do_syscall_64+0xc6/0x1e0 [ 5939.871193][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5939.871193][ T253] [ 5939.873469][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5939.873469][ T253] netdev_get_by_index+0x5e/0x80 [ 5939.873469][ T253] fib6_nh_init+0x3d8/0x1580 [ 5939.873469][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5939.873469][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5939.873469][ T253] ipv6_add_addr+0x411/0x2000 [ 5939.873469][ T253] inet6_addr_add+0x30e/0xa40 [ 5939.873469][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5939.873469][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5939.873469][ T253] netlink_rcv_skb+0x130/0x360 [ 5939.873469][ T253] netlink_unicast+0x449/0x710 [ 5939.873469][ T253] netlink_sendmsg+0x723/0xbe0 [ 5939.873469][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5939.873469][ T253] ___sys_sendmsg+0xee/0x170 [ 5939.873469][ T253] __sys_sendmsg+0xcd/0x170 [ 5939.873469][ T253] do_syscall_64+0xc6/0x1e0 [ 5939.873469][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5939.873469][ T253] [ 5939.875734][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5939.875734][ T253] netdev_get_by_index+0x5e/0x80 [ 5939.875734][ T253] fib6_nh_init+0x3d8/0x1580 [ 5939.875734][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5939.875734][ T253] ip6_route_add+0x1c/0x140 [ 5939.875734][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5939.875734][ T253] addrconf_add_dev+0xe2/0x170 [ 5939.875734][ T253] inet6_addr_add+0x12f/0xa40 [ 5939.875734][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5939.875734][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5939.875734][ T253] netlink_rcv_skb+0x130/0x360 [ 5939.875734][ T253] netlink_unicast+0x449/0x710 [ 5939.875734][ T253] netlink_sendmsg+0x723/0xbe0 [ 5939.875734][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5939.875734][ T253] ___sys_sendmsg+0xee/0x170 [ 5939.875734][ T253] __sys_sendmsg+0xcd/0x170 [ 5939.875734][ T253] do_syscall_64+0xc6/0x1e0 [ 5939.875734][ T253] [ 5939.877971][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5939.877971][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5939.877971][ T253] ipv6_find_idev+0x102/0x170 [ 5939.877971][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5939.877971][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5939.877971][ T253] netlink_rcv_skb+0x130/0x360 [ 5939.877971][ T253] netlink_unicast+0x449/0x710 [ 5939.877971][ T253] netlink_sendmsg+0x723/0xbe0 [ 5939.877971][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5939.877971][ T253] ___sys_sendmsg+0xee/0x170 [ 5939.877971][ T253] __sys_sendmsg+0xcd/0x170 [ 5939.877971][ T253] do_syscall_64+0xc6/0x1e0 [ 5939.877971][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5939.877971][ T253] [ 5939.879726][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5939.879726][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5939.879726][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5939.879726][ T253] ipv6_find_idev+0x102/0x170 [ 5939.879726][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5939.879726][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5939.879726][ T253] netlink_rcv_skb+0x130/0x360 [ 5939.879726][ T253] netlink_unicast+0x449/0x710 [ 5939.879726][ T253] netlink_sendmsg+0x723/0xbe0 [ 5939.879726][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5939.879726][ T253] ___sys_sendmsg+0xee/0x170 [ 5939.879726][ T253] __sys_sendmsg+0xcd/0x170 [ 5939.879726][ T253] do_syscall_64+0xc6/0x1e0 [ 5939.879726][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5939.879726][ T253] [ 5950.130297][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5950.130780][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5950.130780][ T253] dst_init+0x84/0x4a0 [ 5950.130780][ T253] dst_alloc+0x97/0x150 [ 5950.130780][ T253] ip6_dst_alloc+0x23/0x90 [ 5950.130780][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5950.130780][ T253] ip6_pol_route+0x56f/0x840 [ 5950.130780][ T253] fib6_rule_lookup+0x334/0x630 [ 5950.130780][ T253] ip6_route_output_flags+0x259/0x480 [ 5950.130780][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5950.130780][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5950.130780][ T253] netlink_rcv_skb+0x130/0x360 [ 5950.130780][ T253] netlink_unicast+0x449/0x710 [ 5950.130780][ T253] netlink_sendmsg+0x723/0xbe0 [ 5950.130780][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5950.130780][ T253] ___sys_sendmsg+0xee/0x170 [ 5950.130780][ T253] __sys_sendmsg+0xcd/0x170 [ 5950.130780][ T253] do_syscall_64+0xc6/0x1e0 [ 5950.130780][ T253] [ 5950.133000][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5950.133000][ T253] netdev_get_by_index+0x5e/0x80 [ 5950.133000][ T253] fib6_nh_init+0x3d8/0x1580 [ 5950.133000][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5950.133000][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5950.133000][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5950.133000][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5950.133000][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5950.133000][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5950.133000][ T253] addrconf_dad_begin+0x310/0x670 [ 5950.133000][ T253] addrconf_dad_work+0x10b/0xab0 [ 5950.133000][ T253] process_one_work+0x84d/0x18a0 [ 5950.133000][ T253] worker_thread+0x587/0xd30 [ 5950.133000][ T253] kthread+0x28a/0x350 [ 5950.133000][ T253] ret_from_fork+0x31/0x70 [ 5950.133000][ T253] ret_from_fork_asm+0x1a/0x30 [ 5950.133000][ T253] [ 5950.135187][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5950.135187][ T253] netdev_get_by_index+0x5e/0x80 [ 5950.135187][ T253] fib6_nh_init+0x3d8/0x1580 [ 5950.135187][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5950.135187][ T253] ip6_route_add+0x1c/0x140 [ 5950.135187][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5950.135187][ T253] inet6_addr_add+0x4f8/0xa40 [ 5950.135187][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5950.135187][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5950.135187][ T253] netlink_rcv_skb+0x130/0x360 [ 5950.135187][ T253] netlink_unicast+0x449/0x710 [ 5950.135187][ T253] netlink_sendmsg+0x723/0xbe0 [ 5950.135187][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5950.135187][ T253] ___sys_sendmsg+0xee/0x170 [ 5950.135187][ T253] __sys_sendmsg+0xcd/0x170 [ 5950.135187][ T253] do_syscall_64+0xc6/0x1e0 [ 5950.135187][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5950.135187][ T253] [ 5950.137478][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5950.137478][ T253] netdev_get_by_index+0x5e/0x80 [ 5950.137478][ T253] fib6_nh_init+0x3d8/0x1580 [ 5950.137478][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5950.137478][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5950.137478][ T253] ipv6_add_addr+0x411/0x2000 [ 5950.137478][ T253] inet6_addr_add+0x30e/0xa40 [ 5950.137478][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5950.137478][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5950.137478][ T253] netlink_rcv_skb+0x130/0x360 [ 5950.137478][ T253] netlink_unicast+0x449/0x710 [ 5950.137478][ T253] netlink_sendmsg+0x723/0xbe0 [ 5950.137478][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5950.137478][ T253] ___sys_sendmsg+0xee/0x170 [ 5950.137478][ T253] __sys_sendmsg+0xcd/0x170 [ 5950.137478][ T253] do_syscall_64+0xc6/0x1e0 [ 5950.137478][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5950.137478][ T253] [ 5950.139708][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5950.139708][ T253] netdev_get_by_index+0x5e/0x80 [ 5950.139708][ T253] fib6_nh_init+0x3d8/0x1580 [ 5950.139708][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5950.139708][ T253] ip6_route_add+0x1c/0x140 [ 5950.139708][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5950.139708][ T253] addrconf_add_dev+0xe2/0x170 [ 5950.139708][ T253] inet6_addr_add+0x12f/0xa40 [ 5950.139708][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5950.139708][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5950.139708][ T253] netlink_rcv_skb+0x130/0x360 [ 5950.139708][ T253] netlink_unicast+0x449/0x710 [ 5950.139708][ T253] netlink_sendmsg+0x723/0xbe0 [ 5950.139708][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5950.139708][ T253] ___sys_sendmsg+0xee/0x170 [ 5950.139708][ T253] __sys_sendmsg+0xcd/0x170 [ 5950.139708][ T253] do_syscall_64+0xc6/0x1e0 [ 5950.139708][ T253] [ 5950.141953][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5950.141953][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5950.141953][ T253] ipv6_find_idev+0x102/0x170 [ 5950.141953][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5950.141953][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5950.141953][ T253] netlink_rcv_skb+0x130/0x360 [ 5950.141953][ T253] netlink_unicast+0x449/0x710 [ 5950.141953][ T253] netlink_sendmsg+0x723/0xbe0 [ 5950.141953][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5950.141953][ T253] ___sys_sendmsg+0xee/0x170 [ 5950.141953][ T253] __sys_sendmsg+0xcd/0x170 [ 5950.141953][ T253] do_syscall_64+0xc6/0x1e0 [ 5950.141953][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5950.141953][ T253] [ 5950.143690][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5950.143690][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5950.143690][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5950.143690][ T253] ipv6_find_idev+0x102/0x170 [ 5950.143690][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5950.143690][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5950.143690][ T253] netlink_rcv_skb+0x130/0x360 [ 5950.143690][ T253] netlink_unicast+0x449/0x710 [ 5950.143690][ T253] netlink_sendmsg+0x723/0xbe0 [ 5950.143690][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5950.143690][ T253] ___sys_sendmsg+0xee/0x170 [ 5950.143690][ T253] __sys_sendmsg+0xcd/0x170 [ 5950.143690][ T253] do_syscall_64+0xc6/0x1e0 [ 5950.143690][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5950.143690][ T253] [ 5960.386323][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5960.386804][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5960.386804][ T253] dst_init+0x84/0x4a0 [ 5960.386804][ T253] dst_alloc+0x97/0x150 [ 5960.386804][ T253] ip6_dst_alloc+0x23/0x90 [ 5960.386804][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5960.386804][ T253] ip6_pol_route+0x56f/0x840 [ 5960.386804][ T253] fib6_rule_lookup+0x334/0x630 [ 5960.386804][ T253] ip6_route_output_flags+0x259/0x480 [ 5960.386804][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5960.386804][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5960.386804][ T253] netlink_rcv_skb+0x130/0x360 [ 5960.386804][ T253] netlink_unicast+0x449/0x710 [ 5960.386804][ T253] netlink_sendmsg+0x723/0xbe0 [ 5960.386804][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5960.386804][ T253] ___sys_sendmsg+0xee/0x170 [ 5960.386804][ T253] __sys_sendmsg+0xcd/0x170 [ 5960.386804][ T253] do_syscall_64+0xc6/0x1e0 [ 5960.386804][ T253] [ 5960.389005][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5960.389005][ T253] netdev_get_by_index+0x5e/0x80 [ 5960.389005][ T253] fib6_nh_init+0x3d8/0x1580 [ 5960.389005][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5960.389005][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5960.389005][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5960.389005][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5960.389005][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5960.389005][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5960.389005][ T253] addrconf_dad_begin+0x310/0x670 [ 5960.389005][ T253] addrconf_dad_work+0x10b/0xab0 [ 5960.389005][ T253] process_one_work+0x84d/0x18a0 [ 5960.389005][ T253] worker_thread+0x587/0xd30 [ 5960.389005][ T253] kthread+0x28a/0x350 [ 5960.389005][ T253] ret_from_fork+0x31/0x70 [ 5960.389005][ T253] ret_from_fork_asm+0x1a/0x30 [ 5960.389005][ T253] [ 5960.391159][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5960.391159][ T253] netdev_get_by_index+0x5e/0x80 [ 5960.391159][ T253] fib6_nh_init+0x3d8/0x1580 [ 5960.391159][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5960.391159][ T253] ip6_route_add+0x1c/0x140 [ 5960.391159][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5960.391159][ T253] inet6_addr_add+0x4f8/0xa40 [ 5960.391159][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5960.391159][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5960.391159][ T253] netlink_rcv_skb+0x130/0x360 [ 5960.391159][ T253] netlink_unicast+0x449/0x710 [ 5960.391159][ T253] netlink_sendmsg+0x723/0xbe0 [ 5960.391159][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5960.391159][ T253] ___sys_sendmsg+0xee/0x170 [ 5960.391159][ T253] __sys_sendmsg+0xcd/0x170 [ 5960.391159][ T253] do_syscall_64+0xc6/0x1e0 [ 5960.391159][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5960.391159][ T253] [ 5960.393418][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5960.393418][ T253] netdev_get_by_index+0x5e/0x80 [ 5960.393418][ T253] fib6_nh_init+0x3d8/0x1580 [ 5960.393418][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5960.393418][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5960.393418][ T253] ipv6_add_addr+0x411/0x2000 [ 5960.393418][ T253] inet6_addr_add+0x30e/0xa40 [ 5960.393418][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5960.393418][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5960.393418][ T253] netlink_rcv_skb+0x130/0x360 [ 5960.393418][ T253] netlink_unicast+0x449/0x710 [ 5960.393418][ T253] netlink_sendmsg+0x723/0xbe0 [ 5960.393418][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5960.393418][ T253] ___sys_sendmsg+0xee/0x170 [ 5960.393418][ T253] __sys_sendmsg+0xcd/0x170 [ 5960.393418][ T253] do_syscall_64+0xc6/0x1e0 [ 5960.393418][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5960.393418][ T253] [ 5960.395658][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5960.395658][ T253] netdev_get_by_index+0x5e/0x80 [ 5960.395658][ T253] fib6_nh_init+0x3d8/0x1580 [ 5960.395658][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5960.395658][ T253] ip6_route_add+0x1c/0x140 [ 5960.395658][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5960.395658][ T253] addrconf_add_dev+0xe2/0x170 [ 5960.395658][ T253] inet6_addr_add+0x12f/0xa40 [ 5960.395658][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5960.395658][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5960.395658][ T253] netlink_rcv_skb+0x130/0x360 [ 5960.395658][ T253] netlink_unicast+0x449/0x710 [ 5960.395658][ T253] netlink_sendmsg+0x723/0xbe0 [ 5960.395658][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5960.395658][ T253] ___sys_sendmsg+0xee/0x170 [ 5960.395658][ T253] __sys_sendmsg+0xcd/0x170 [ 5960.395658][ T253] do_syscall_64+0xc6/0x1e0 [ 5960.395658][ T253] [ 5960.397857][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5960.397857][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5960.397857][ T253] ipv6_find_idev+0x102/0x170 [ 5960.397857][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5960.397857][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5960.397857][ T253] netlink_rcv_skb+0x130/0x360 [ 5960.397857][ T253] netlink_unicast+0x449/0x710 [ 5960.397857][ T253] netlink_sendmsg+0x723/0xbe0 [ 5960.397857][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5960.397857][ T253] ___sys_sendmsg+0xee/0x170 [ 5960.397857][ T253] __sys_sendmsg+0xcd/0x170 [ 5960.397857][ T253] do_syscall_64+0xc6/0x1e0 [ 5960.397857][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5960.397857][ T253] [ 5960.399584][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5960.399584][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5960.399584][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5960.399584][ T253] ipv6_find_idev+0x102/0x170 [ 5960.399584][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5960.399584][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5960.399584][ T253] netlink_rcv_skb+0x130/0x360 [ 5960.399584][ T253] netlink_unicast+0x449/0x710 [ 5960.399584][ T253] netlink_sendmsg+0x723/0xbe0 [ 5960.399584][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5960.399584][ T253] ___sys_sendmsg+0xee/0x170 [ 5960.399584][ T253] __sys_sendmsg+0xcd/0x170 [ 5960.399584][ T253] do_syscall_64+0xc6/0x1e0 [ 5960.399584][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5960.399584][ T253] [ 5970.658386][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5970.658866][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5970.658866][ T253] dst_init+0x84/0x4a0 [ 5970.658866][ T253] dst_alloc+0x97/0x150 [ 5970.658866][ T253] ip6_dst_alloc+0x23/0x90 [ 5970.658866][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5970.658866][ T253] ip6_pol_route+0x56f/0x840 [ 5970.658866][ T253] fib6_rule_lookup+0x334/0x630 [ 5970.658866][ T253] ip6_route_output_flags+0x259/0x480 [ 5970.658866][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5970.658866][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5970.658866][ T253] netlink_rcv_skb+0x130/0x360 [ 5970.658866][ T253] netlink_unicast+0x449/0x710 [ 5970.658866][ T253] netlink_sendmsg+0x723/0xbe0 [ 5970.658866][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5970.658866][ T253] ___sys_sendmsg+0xee/0x170 [ 5970.658866][ T253] __sys_sendmsg+0xcd/0x170 [ 5970.658866][ T253] do_syscall_64+0xc6/0x1e0 [ 5970.658866][ T253] [ 5970.661081][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5970.661081][ T253] netdev_get_by_index+0x5e/0x80 [ 5970.661081][ T253] fib6_nh_init+0x3d8/0x1580 [ 5970.661081][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5970.661081][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5970.661081][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5970.661081][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5970.661081][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5970.661081][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5970.661081][ T253] addrconf_dad_begin+0x310/0x670 [ 5970.661081][ T253] addrconf_dad_work+0x10b/0xab0 [ 5970.661081][ T253] process_one_work+0x84d/0x18a0 [ 5970.661081][ T253] worker_thread+0x587/0xd30 [ 5970.661081][ T253] kthread+0x28a/0x350 [ 5970.661081][ T253] ret_from_fork+0x31/0x70 [ 5970.661081][ T253] ret_from_fork_asm+0x1a/0x30 [ 5970.661081][ T253] [ 5970.663252][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5970.663252][ T253] netdev_get_by_index+0x5e/0x80 [ 5970.663252][ T253] fib6_nh_init+0x3d8/0x1580 [ 5970.663252][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5970.663252][ T253] ip6_route_add+0x1c/0x140 [ 5970.663252][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5970.663252][ T253] inet6_addr_add+0x4f8/0xa40 [ 5970.663252][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5970.663252][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5970.663252][ T253] netlink_rcv_skb+0x130/0x360 [ 5970.663252][ T253] netlink_unicast+0x449/0x710 [ 5970.663252][ T253] netlink_sendmsg+0x723/0xbe0 [ 5970.663252][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5970.663252][ T253] ___sys_sendmsg+0xee/0x170 [ 5970.663252][ T253] __sys_sendmsg+0xcd/0x170 [ 5970.663252][ T253] do_syscall_64+0xc6/0x1e0 [ 5970.663252][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5970.663252][ T253] [ 5970.665493][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5970.665493][ T253] netdev_get_by_index+0x5e/0x80 [ 5970.665493][ T253] fib6_nh_init+0x3d8/0x1580 [ 5970.665493][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5970.665493][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5970.665493][ T253] ipv6_add_addr+0x411/0x2000 [ 5970.665493][ T253] inet6_addr_add+0x30e/0xa40 [ 5970.665493][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5970.665493][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5970.665493][ T253] netlink_rcv_skb+0x130/0x360 [ 5970.665493][ T253] netlink_unicast+0x449/0x710 [ 5970.665493][ T253] netlink_sendmsg+0x723/0xbe0 [ 5970.665493][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5970.665493][ T253] ___sys_sendmsg+0xee/0x170 [ 5970.665493][ T253] __sys_sendmsg+0xcd/0x170 [ 5970.665493][ T253] do_syscall_64+0xc6/0x1e0 [ 5970.665493][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5970.665493][ T253] [ 5970.667733][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5970.667733][ T253] netdev_get_by_index+0x5e/0x80 [ 5970.667733][ T253] fib6_nh_init+0x3d8/0x1580 [ 5970.667733][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5970.667733][ T253] ip6_route_add+0x1c/0x140 [ 5970.667733][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5970.667733][ T253] addrconf_add_dev+0xe2/0x170 [ 5970.667733][ T253] inet6_addr_add+0x12f/0xa40 [ 5970.667733][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5970.667733][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5970.667733][ T253] netlink_rcv_skb+0x130/0x360 [ 5970.667733][ T253] netlink_unicast+0x449/0x710 [ 5970.667733][ T253] netlink_sendmsg+0x723/0xbe0 [ 5970.667733][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5970.667733][ T253] ___sys_sendmsg+0xee/0x170 [ 5970.667733][ T253] __sys_sendmsg+0xcd/0x170 [ 5970.667733][ T253] do_syscall_64+0xc6/0x1e0 [ 5970.667733][ T253] [ 5970.670046][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5970.670046][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5970.670046][ T253] ipv6_find_idev+0x102/0x170 [ 5970.670046][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5970.670046][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5970.670046][ T253] netlink_rcv_skb+0x130/0x360 [ 5970.670046][ T253] netlink_unicast+0x449/0x710 [ 5970.670046][ T253] netlink_sendmsg+0x723/0xbe0 [ 5970.670046][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5970.670046][ T253] ___sys_sendmsg+0xee/0x170 [ 5970.670046][ T253] __sys_sendmsg+0xcd/0x170 [ 5970.670046][ T253] do_syscall_64+0xc6/0x1e0 [ 5970.670046][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5970.670046][ T253] [ 5970.671781][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5970.671781][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5970.671781][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5970.671781][ T253] ipv6_find_idev+0x102/0x170 [ 5970.671781][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5970.671781][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5970.671781][ T253] netlink_rcv_skb+0x130/0x360 [ 5970.671781][ T253] netlink_unicast+0x449/0x710 [ 5970.671781][ T253] netlink_sendmsg+0x723/0xbe0 [ 5970.671781][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5970.671781][ T253] ___sys_sendmsg+0xee/0x170 [ 5970.671781][ T253] __sys_sendmsg+0xcd/0x170 [ 5970.671781][ T253] do_syscall_64+0xc6/0x1e0 [ 5970.671781][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5970.671781][ T253] [ 5980.914316][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5980.914784][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5980.914784][ T253] dst_init+0x84/0x4a0 [ 5980.914784][ T253] dst_alloc+0x97/0x150 [ 5980.914784][ T253] ip6_dst_alloc+0x23/0x90 [ 5980.914784][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5980.914784][ T253] ip6_pol_route+0x56f/0x840 [ 5980.914784][ T253] fib6_rule_lookup+0x334/0x630 [ 5980.914784][ T253] ip6_route_output_flags+0x259/0x480 [ 5980.914784][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5980.914784][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5980.914784][ T253] netlink_rcv_skb+0x130/0x360 [ 5980.914784][ T253] netlink_unicast+0x449/0x710 [ 5980.914784][ T253] netlink_sendmsg+0x723/0xbe0 [ 5980.914784][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5980.914784][ T253] ___sys_sendmsg+0xee/0x170 [ 5980.914784][ T253] __sys_sendmsg+0xcd/0x170 [ 5980.914784][ T253] do_syscall_64+0xc6/0x1e0 [ 5980.914784][ T253] [ 5980.916984][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5980.916984][ T253] netdev_get_by_index+0x5e/0x80 [ 5980.916984][ T253] fib6_nh_init+0x3d8/0x1580 [ 5980.916984][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5980.916984][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5980.916984][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5980.916984][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5980.916984][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5980.916984][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5980.916984][ T253] addrconf_dad_begin+0x310/0x670 [ 5980.916984][ T253] addrconf_dad_work+0x10b/0xab0 [ 5980.916984][ T253] process_one_work+0x84d/0x18a0 [ 5980.916984][ T253] worker_thread+0x587/0xd30 [ 5980.916984][ T253] kthread+0x28a/0x350 [ 5980.916984][ T253] ret_from_fork+0x31/0x70 [ 5980.916984][ T253] ret_from_fork_asm+0x1a/0x30 [ 5980.916984][ T253] [ 5980.919137][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5980.919137][ T253] netdev_get_by_index+0x5e/0x80 [ 5980.919137][ T253] fib6_nh_init+0x3d8/0x1580 [ 5980.919137][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5980.919137][ T253] ip6_route_add+0x1c/0x140 [ 5980.919137][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5980.919137][ T253] inet6_addr_add+0x4f8/0xa40 [ 5980.919137][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5980.919137][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5980.919137][ T253] netlink_rcv_skb+0x130/0x360 [ 5980.919137][ T253] netlink_unicast+0x449/0x710 [ 5980.919137][ T253] netlink_sendmsg+0x723/0xbe0 [ 5980.919137][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5980.919137][ T253] ___sys_sendmsg+0xee/0x170 [ 5980.919137][ T253] __sys_sendmsg+0xcd/0x170 [ 5980.919137][ T253] do_syscall_64+0xc6/0x1e0 [ 5980.919137][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5980.919137][ T253] [ 5980.921367][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5980.921367][ T253] netdev_get_by_index+0x5e/0x80 [ 5980.921367][ T253] fib6_nh_init+0x3d8/0x1580 [ 5980.921367][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5980.921367][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5980.921367][ T253] ipv6_add_addr+0x411/0x2000 [ 5980.921367][ T253] inet6_addr_add+0x30e/0xa40 [ 5980.921367][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5980.921367][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5980.921367][ T253] netlink_rcv_skb+0x130/0x360 [ 5980.921367][ T253] netlink_unicast+0x449/0x710 [ 5980.921367][ T253] netlink_sendmsg+0x723/0xbe0 [ 5980.921367][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5980.921367][ T253] ___sys_sendmsg+0xee/0x170 [ 5980.921367][ T253] __sys_sendmsg+0xcd/0x170 [ 5980.921367][ T253] do_syscall_64+0xc6/0x1e0 [ 5980.921367][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5980.921367][ T253] [ 5980.923615][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5980.923615][ T253] netdev_get_by_index+0x5e/0x80 [ 5980.923615][ T253] fib6_nh_init+0x3d8/0x1580 [ 5980.923615][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5980.923615][ T253] ip6_route_add+0x1c/0x140 [ 5980.923615][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5980.923615][ T253] addrconf_add_dev+0xe2/0x170 [ 5980.923615][ T253] inet6_addr_add+0x12f/0xa40 [ 5980.923615][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5980.923615][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5980.923615][ T253] netlink_rcv_skb+0x130/0x360 [ 5980.923615][ T253] netlink_unicast+0x449/0x710 [ 5980.923615][ T253] netlink_sendmsg+0x723/0xbe0 [ 5980.923615][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5980.923615][ T253] ___sys_sendmsg+0xee/0x170 [ 5980.923615][ T253] __sys_sendmsg+0xcd/0x170 [ 5980.923615][ T253] do_syscall_64+0xc6/0x1e0 [ 5980.923615][ T253] [ 5980.925807][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5980.925807][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5980.925807][ T253] ipv6_find_idev+0x102/0x170 [ 5980.925807][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5980.925807][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5980.925807][ T253] netlink_rcv_skb+0x130/0x360 [ 5980.925807][ T253] netlink_unicast+0x449/0x710 [ 5980.925807][ T253] netlink_sendmsg+0x723/0xbe0 [ 5980.925807][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5980.925807][ T253] ___sys_sendmsg+0xee/0x170 [ 5980.925807][ T253] __sys_sendmsg+0xcd/0x170 [ 5980.925807][ T253] do_syscall_64+0xc6/0x1e0 [ 5980.925807][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5980.925807][ T253] [ 5980.927519][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5980.927519][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5980.927519][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5980.927519][ T253] ipv6_find_idev+0x102/0x170 [ 5980.927519][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5980.927519][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5980.927519][ T253] netlink_rcv_skb+0x130/0x360 [ 5980.927519][ T253] netlink_unicast+0x449/0x710 [ 5980.927519][ T253] netlink_sendmsg+0x723/0xbe0 [ 5980.927519][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5980.927519][ T253] ___sys_sendmsg+0xee/0x170 [ 5980.927519][ T253] __sys_sendmsg+0xcd/0x170 [ 5980.927519][ T253] do_syscall_64+0xc6/0x1e0 [ 5980.927519][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5980.927519][ T253] [ 5991.074337][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5991.074853][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5991.074853][ T253] dst_init+0x84/0x4a0 [ 5991.074853][ T253] dst_alloc+0x97/0x150 [ 5991.074853][ T253] ip6_dst_alloc+0x23/0x90 [ 5991.074853][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5991.074853][ T253] ip6_pol_route+0x56f/0x840 [ 5991.074853][ T253] fib6_rule_lookup+0x334/0x630 [ 5991.074853][ T253] ip6_route_output_flags+0x259/0x480 [ 5991.074853][ T253] inet6_rtm_getroute+0x980/0xf70 [ 5991.074853][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 5991.074853][ T253] netlink_rcv_skb+0x130/0x360 [ 5991.074853][ T253] netlink_unicast+0x449/0x710 [ 5991.074853][ T253] netlink_sendmsg+0x723/0xbe0 [ 5991.074853][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5991.074853][ T253] ___sys_sendmsg+0xee/0x170 [ 5991.074853][ T253] __sys_sendmsg+0xcd/0x170 [ 5991.074853][ T253] do_syscall_64+0xc6/0x1e0 [ 5991.074853][ T253] [ 5991.077055][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5991.077055][ T253] netdev_get_by_index+0x5e/0x80 [ 5991.077055][ T253] fib6_nh_init+0x3d8/0x1580 [ 5991.077055][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5991.077055][ T253] addrconf_f6i_alloc+0x265/0x560 [ 5991.077055][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5991.077055][ T253] addrconf_join_anycast+0x1c0/0x220 [ 5991.077055][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5991.077055][ T253] addrconf_dad_completed+0x12b/0xe20 [ 5991.077055][ T253] addrconf_dad_begin+0x310/0x670 [ 5991.077055][ T253] addrconf_dad_work+0x10b/0xab0 [ 5991.077055][ T253] process_one_work+0x84d/0x18a0 [ 5991.077055][ T253] worker_thread+0x587/0xd30 [ 5991.077055][ T253] kthread+0x28a/0x350 [ 5991.077055][ T253] ret_from_fork+0x31/0x70 [ 5991.077055][ T253] ret_from_fork_asm+0x1a/0x30 [ 5991.077055][ T253] [ 5991.079190][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5991.079190][ T253] netdev_get_by_index+0x5e/0x80 [ 5991.079190][ T253] fib6_nh_init+0x3d8/0x1580 [ 5991.079190][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5991.079190][ T253] ip6_route_add+0x1c/0x140 [ 5991.079190][ T253] addrconf_prefix_route+0x2a6/0x430 [ 5991.079190][ T253] inet6_addr_add+0x4f8/0xa40 [ 5991.079190][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5991.079190][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5991.079190][ T253] netlink_rcv_skb+0x130/0x360 [ 5991.079190][ T253] netlink_unicast+0x449/0x710 [ 5991.079190][ T253] netlink_sendmsg+0x723/0xbe0 [ 5991.079190][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5991.079190][ T253] ___sys_sendmsg+0xee/0x170 [ 5991.079190][ T253] __sys_sendmsg+0xcd/0x170 [ 5991.079190][ T253] do_syscall_64+0xc6/0x1e0 [ 5991.079190][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5991.079190][ T253] [ 5991.081430][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5991.081430][ T253] netdev_get_by_index+0x5e/0x80 [ 5991.081430][ T253] fib6_nh_init+0x3d8/0x1580 [ 5991.081430][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5991.081430][ T253] addrconf_f6i_alloc+0x315/0x560 [ 5991.081430][ T253] ipv6_add_addr+0x411/0x2000 [ 5991.081430][ T253] inet6_addr_add+0x30e/0xa40 [ 5991.081430][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5991.081430][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5991.081430][ T253] netlink_rcv_skb+0x130/0x360 [ 5991.081430][ T253] netlink_unicast+0x449/0x710 [ 5991.081430][ T253] netlink_sendmsg+0x723/0xbe0 [ 5991.081430][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5991.081430][ T253] ___sys_sendmsg+0xee/0x170 [ 5991.081430][ T253] __sys_sendmsg+0xcd/0x170 [ 5991.081430][ T253] do_syscall_64+0xc6/0x1e0 [ 5991.081430][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5991.081430][ T253] [ 5991.083679][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5991.083679][ T253] netdev_get_by_index+0x5e/0x80 [ 5991.083679][ T253] fib6_nh_init+0x3d8/0x1580 [ 5991.083679][ T253] ip6_route_info_create+0xf18/0x17d0 [ 5991.083679][ T253] ip6_route_add+0x1c/0x140 [ 5991.083679][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 5991.083679][ T253] addrconf_add_dev+0xe2/0x170 [ 5991.083679][ T253] inet6_addr_add+0x12f/0xa40 [ 5991.083679][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 5991.083679][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5991.083679][ T253] netlink_rcv_skb+0x130/0x360 [ 5991.083679][ T253] netlink_unicast+0x449/0x710 [ 5991.083679][ T253] netlink_sendmsg+0x723/0xbe0 [ 5991.083679][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5991.083679][ T253] ___sys_sendmsg+0xee/0x170 [ 5991.083679][ T253] __sys_sendmsg+0xcd/0x170 [ 5991.083679][ T253] do_syscall_64+0xc6/0x1e0 [ 5991.083679][ T253] [ 5991.085879][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5991.085879][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 5991.085879][ T253] ipv6_find_idev+0x102/0x170 [ 5991.085879][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5991.085879][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5991.085879][ T253] netlink_rcv_skb+0x130/0x360 [ 5991.085879][ T253] netlink_unicast+0x449/0x710 [ 5991.085879][ T253] netlink_sendmsg+0x723/0xbe0 [ 5991.085879][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5991.085879][ T253] ___sys_sendmsg+0xee/0x170 [ 5991.085879][ T253] __sys_sendmsg+0xcd/0x170 [ 5991.085879][ T253] do_syscall_64+0xc6/0x1e0 [ 5991.085879][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5991.085879][ T253] [ 5991.087601][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 5991.087601][ T253] neigh_parms_alloc+0x1e5/0x510 [ 5991.087601][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 5991.087601][ T253] ipv6_find_idev+0x102/0x170 [ 5991.087601][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 5991.087601][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5991.087601][ T253] netlink_rcv_skb+0x130/0x360 [ 5991.087601][ T253] netlink_unicast+0x449/0x710 [ 5991.087601][ T253] netlink_sendmsg+0x723/0xbe0 [ 5991.087601][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 5991.087601][ T253] ___sys_sendmsg+0xee/0x170 [ 5991.087601][ T253] __sys_sendmsg+0xcd/0x170 [ 5991.087601][ T253] do_syscall_64+0xc6/0x1e0 [ 5991.087601][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5991.087601][ T253] [ 6001.338351][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6001.338775][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6001.338775][ T253] dst_init+0x84/0x4a0 [ 6001.338775][ T253] dst_alloc+0x97/0x150 [ 6001.338775][ T253] ip6_dst_alloc+0x23/0x90 [ 6001.338775][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6001.338775][ T253] ip6_pol_route+0x56f/0x840 [ 6001.338775][ T253] fib6_rule_lookup+0x334/0x630 [ 6001.338775][ T253] ip6_route_output_flags+0x259/0x480 [ 6001.338775][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6001.338775][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6001.338775][ T253] netlink_rcv_skb+0x130/0x360 [ 6001.338775][ T253] netlink_unicast+0x449/0x710 [ 6001.338775][ T253] netlink_sendmsg+0x723/0xbe0 [ 6001.338775][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6001.338775][ T253] ___sys_sendmsg+0xee/0x170 [ 6001.338775][ T253] __sys_sendmsg+0xcd/0x170 [ 6001.338775][ T253] do_syscall_64+0xc6/0x1e0 [ 6001.338775][ T253] [ 6001.340966][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6001.340966][ T253] netdev_get_by_index+0x5e/0x80 [ 6001.340966][ T253] fib6_nh_init+0x3d8/0x1580 [ 6001.340966][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6001.340966][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6001.340966][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6001.340966][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6001.340966][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6001.340966][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6001.340966][ T253] addrconf_dad_begin+0x310/0x670 [ 6001.340966][ T253] addrconf_dad_work+0x10b/0xab0 [ 6001.340966][ T253] process_one_work+0x84d/0x18a0 [ 6001.340966][ T253] worker_thread+0x587/0xd30 [ 6001.340966][ T253] kthread+0x28a/0x350 [ 6001.340966][ T253] ret_from_fork+0x31/0x70 [ 6001.340966][ T253] ret_from_fork_asm+0x1a/0x30 [ 6001.340966][ T253] [ 6001.343389][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6001.343389][ T253] netdev_get_by_index+0x5e/0x80 [ 6001.343389][ T253] fib6_nh_init+0x3d8/0x1580 [ 6001.343389][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6001.343389][ T253] ip6_route_add+0x1c/0x140 [ 6001.343389][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6001.343389][ T253] inet6_addr_add+0x4f8/0xa40 [ 6001.343389][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6001.343389][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6001.343389][ T253] netlink_rcv_skb+0x130/0x360 [ 6001.343389][ T253] netlink_unicast+0x449/0x710 [ 6001.343389][ T253] netlink_sendmsg+0x723/0xbe0 [ 6001.343389][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6001.343389][ T253] ___sys_sendmsg+0xee/0x170 [ 6001.343389][ T253] __sys_sendmsg+0xcd/0x170 [ 6001.343389][ T253] do_syscall_64+0xc6/0x1e0 [ 6001.343389][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6001.343389][ T253] [ 6001.345615][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6001.345615][ T253] netdev_get_by_index+0x5e/0x80 [ 6001.345615][ T253] fib6_nh_init+0x3d8/0x1580 [ 6001.345615][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6001.345615][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6001.345615][ T253] ipv6_add_addr+0x411/0x2000 [ 6001.345615][ T253] inet6_addr_add+0x30e/0xa40 [ 6001.345615][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6001.345615][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6001.345615][ T253] netlink_rcv_skb+0x130/0x360 [ 6001.345615][ T253] netlink_unicast+0x449/0x710 [ 6001.345615][ T253] netlink_sendmsg+0x723/0xbe0 [ 6001.345615][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6001.345615][ T253] ___sys_sendmsg+0xee/0x170 [ 6001.345615][ T253] __sys_sendmsg+0xcd/0x170 [ 6001.345615][ T253] do_syscall_64+0xc6/0x1e0 [ 6001.345615][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6001.345615][ T253] [ 6001.347842][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6001.347842][ T253] netdev_get_by_index+0x5e/0x80 [ 6001.347842][ T253] fib6_nh_init+0x3d8/0x1580 [ 6001.347842][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6001.347842][ T253] ip6_route_add+0x1c/0x140 [ 6001.347842][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6001.347842][ T253] addrconf_add_dev+0xe2/0x170 [ 6001.347842][ T253] inet6_addr_add+0x12f/0xa40 [ 6001.347842][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6001.347842][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6001.347842][ T253] netlink_rcv_skb+0x130/0x360 [ 6001.347842][ T253] netlink_unicast+0x449/0x710 [ 6001.347842][ T253] netlink_sendmsg+0x723/0xbe0 [ 6001.347842][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6001.347842][ T253] ___sys_sendmsg+0xee/0x170 [ 6001.347842][ T253] __sys_sendmsg+0xcd/0x170 [ 6001.347842][ T253] do_syscall_64+0xc6/0x1e0 [ 6001.347842][ T253] [ 6001.350045][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6001.350045][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6001.350045][ T253] ipv6_find_idev+0x102/0x170 [ 6001.350045][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6001.350045][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6001.350045][ T253] netlink_rcv_skb+0x130/0x360 [ 6001.350045][ T253] netlink_unicast+0x449/0x710 [ 6001.350045][ T253] netlink_sendmsg+0x723/0xbe0 [ 6001.350045][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6001.350045][ T253] ___sys_sendmsg+0xee/0x170 [ 6001.350045][ T253] __sys_sendmsg+0xcd/0x170 [ 6001.350045][ T253] do_syscall_64+0xc6/0x1e0 [ 6001.350045][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6001.350045][ T253] [ 6001.352181][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6001.352181][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6001.352181][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6001.352181][ T253] ipv6_find_idev+0x102/0x170 [ 6001.352181][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6001.352181][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6001.352181][ T253] netlink_rcv_skb+0x130/0x360 [ 6001.352181][ T253] netlink_unicast+0x449/0x710 [ 6001.352181][ T253] netlink_sendmsg+0x723/0xbe0 [ 6001.352181][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6001.352181][ T253] ___sys_sendmsg+0xee/0x170 [ 6001.352181][ T253] __sys_sendmsg+0xcd/0x170 [ 6001.352181][ T253] do_syscall_64+0xc6/0x1e0 [ 6001.352181][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6001.352181][ T253] [ 6011.602309][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6011.602804][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6011.602804][ T253] dst_init+0x84/0x4a0 [ 6011.602804][ T253] dst_alloc+0x97/0x150 [ 6011.602804][ T253] ip6_dst_alloc+0x23/0x90 [ 6011.602804][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6011.602804][ T253] ip6_pol_route+0x56f/0x840 [ 6011.602804][ T253] fib6_rule_lookup+0x334/0x630 [ 6011.602804][ T253] ip6_route_output_flags+0x259/0x480 [ 6011.602804][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6011.602804][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6011.602804][ T253] netlink_rcv_skb+0x130/0x360 [ 6011.602804][ T253] netlink_unicast+0x449/0x710 [ 6011.602804][ T253] netlink_sendmsg+0x723/0xbe0 [ 6011.602804][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6011.602804][ T253] ___sys_sendmsg+0xee/0x170 [ 6011.602804][ T253] __sys_sendmsg+0xcd/0x170 [ 6011.602804][ T253] do_syscall_64+0xc6/0x1e0 [ 6011.602804][ T253] [ 6011.605018][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6011.605018][ T253] netdev_get_by_index+0x5e/0x80 [ 6011.605018][ T253] fib6_nh_init+0x3d8/0x1580 [ 6011.605018][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6011.605018][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6011.605018][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6011.605018][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6011.605018][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6011.605018][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6011.605018][ T253] addrconf_dad_begin+0x310/0x670 [ 6011.605018][ T253] addrconf_dad_work+0x10b/0xab0 [ 6011.605018][ T253] process_one_work+0x84d/0x18a0 [ 6011.605018][ T253] worker_thread+0x587/0xd30 [ 6011.605018][ T253] kthread+0x28a/0x350 [ 6011.605018][ T253] ret_from_fork+0x31/0x70 [ 6011.605018][ T253] ret_from_fork_asm+0x1a/0x30 [ 6011.605018][ T253] [ 6011.608099][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6011.608099][ T253] netdev_get_by_index+0x5e/0x80 [ 6011.608099][ T253] fib6_nh_init+0x3d8/0x1580 [ 6011.608099][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6011.608099][ T253] ip6_route_add+0x1c/0x140 [ 6011.608099][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6011.608099][ T253] inet6_addr_add+0x4f8/0xa40 [ 6011.608099][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6011.608099][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6011.608099][ T253] netlink_rcv_skb+0x130/0x360 [ 6011.608099][ T253] netlink_unicast+0x449/0x710 [ 6011.608099][ T253] netlink_sendmsg+0x723/0xbe0 [ 6011.608099][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6011.608099][ T253] ___sys_sendmsg+0xee/0x170 [ 6011.608099][ T253] __sys_sendmsg+0xcd/0x170 [ 6011.608099][ T253] do_syscall_64+0xc6/0x1e0 [ 6011.608099][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6011.608099][ T253] [ 6011.610378][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6011.610378][ T253] netdev_get_by_index+0x5e/0x80 [ 6011.610378][ T253] fib6_nh_init+0x3d8/0x1580 [ 6011.610378][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6011.610378][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6011.610378][ T253] ipv6_add_addr+0x411/0x2000 [ 6011.610378][ T253] inet6_addr_add+0x30e/0xa40 [ 6011.610378][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6011.610378][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6011.610378][ T253] netlink_rcv_skb+0x130/0x360 [ 6011.610378][ T253] netlink_unicast+0x449/0x710 [ 6011.610378][ T253] netlink_sendmsg+0x723/0xbe0 [ 6011.610378][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6011.610378][ T253] ___sys_sendmsg+0xee/0x170 [ 6011.610378][ T253] __sys_sendmsg+0xcd/0x170 [ 6011.610378][ T253] do_syscall_64+0xc6/0x1e0 [ 6011.610378][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6011.610378][ T253] [ 6011.612647][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6011.612647][ T253] netdev_get_by_index+0x5e/0x80 [ 6011.612647][ T253] fib6_nh_init+0x3d8/0x1580 [ 6011.612647][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6011.612647][ T253] ip6_route_add+0x1c/0x140 [ 6011.612647][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6011.612647][ T253] addrconf_add_dev+0xe2/0x170 [ 6011.612647][ T253] inet6_addr_add+0x12f/0xa40 [ 6011.612647][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6011.612647][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6011.612647][ T253] netlink_rcv_skb+0x130/0x360 [ 6011.612647][ T253] netlink_unicast+0x449/0x710 [ 6011.612647][ T253] netlink_sendmsg+0x723/0xbe0 [ 6011.612647][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6011.612647][ T253] ___sys_sendmsg+0xee/0x170 [ 6011.612647][ T253] __sys_sendmsg+0xcd/0x170 [ 6011.612647][ T253] do_syscall_64+0xc6/0x1e0 [ 6011.612647][ T253] [ 6011.614906][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6011.614906][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6011.614906][ T253] ipv6_find_idev+0x102/0x170 [ 6011.614906][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6011.614906][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6011.614906][ T253] netlink_rcv_skb+0x130/0x360 [ 6011.614906][ T253] netlink_unicast+0x449/0x710 [ 6011.614906][ T253] netlink_sendmsg+0x723/0xbe0 [ 6011.614906][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6011.614906][ T253] ___sys_sendmsg+0xee/0x170 [ 6011.614906][ T253] __sys_sendmsg+0xcd/0x170 [ 6011.614906][ T253] do_syscall_64+0xc6/0x1e0 [ 6011.614906][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6011.614906][ T253] [ 6011.616661][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6011.616661][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6011.616661][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6011.616661][ T253] ipv6_find_idev+0x102/0x170 [ 6011.616661][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6011.616661][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6011.616661][ T253] netlink_rcv_skb+0x130/0x360 [ 6011.616661][ T253] netlink_unicast+0x449/0x710 [ 6011.616661][ T253] netlink_sendmsg+0x723/0xbe0 [ 6011.616661][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6011.616661][ T253] ___sys_sendmsg+0xee/0x170 [ 6011.616661][ T253] __sys_sendmsg+0xcd/0x170 [ 6011.616661][ T253] do_syscall_64+0xc6/0x1e0 [ 6011.616661][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6011.616661][ T253] [ 6021.642236][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6021.642665][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6021.642665][ T253] dst_init+0x84/0x4a0 [ 6021.642665][ T253] dst_alloc+0x97/0x150 [ 6021.642665][ T253] ip6_dst_alloc+0x23/0x90 [ 6021.642665][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6021.642665][ T253] ip6_pol_route+0x56f/0x840 [ 6021.642665][ T253] fib6_rule_lookup+0x334/0x630 [ 6021.642665][ T253] ip6_route_output_flags+0x259/0x480 [ 6021.642665][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6021.642665][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6021.642665][ T253] netlink_rcv_skb+0x130/0x360 [ 6021.642665][ T253] netlink_unicast+0x449/0x710 [ 6021.642665][ T253] netlink_sendmsg+0x723/0xbe0 [ 6021.642665][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6021.642665][ T253] ___sys_sendmsg+0xee/0x170 [ 6021.642665][ T253] __sys_sendmsg+0xcd/0x170 [ 6021.642665][ T253] do_syscall_64+0xc6/0x1e0 [ 6021.642665][ T253] [ 6021.644904][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6021.644904][ T253] netdev_get_by_index+0x5e/0x80 [ 6021.644904][ T253] fib6_nh_init+0x3d8/0x1580 [ 6021.644904][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6021.644904][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6021.644904][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6021.644904][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6021.644904][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6021.644904][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6021.644904][ T253] addrconf_dad_begin+0x310/0x670 [ 6021.644904][ T253] addrconf_dad_work+0x10b/0xab0 [ 6021.644904][ T253] process_one_work+0x84d/0x18a0 [ 6021.644904][ T253] worker_thread+0x587/0xd30 [ 6021.644904][ T253] kthread+0x28a/0x350 [ 6021.644904][ T253] ret_from_fork+0x31/0x70 [ 6021.644904][ T253] ret_from_fork_asm+0x1a/0x30 [ 6021.644904][ T253] [ 6021.647415][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6021.647415][ T253] netdev_get_by_index+0x5e/0x80 [ 6021.647415][ T253] fib6_nh_init+0x3d8/0x1580 [ 6021.647415][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6021.647415][ T253] ip6_route_add+0x1c/0x140 [ 6021.647415][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6021.647415][ T253] inet6_addr_add+0x4f8/0xa40 [ 6021.647415][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6021.647415][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6021.647415][ T253] netlink_rcv_skb+0x130/0x360 [ 6021.647415][ T253] netlink_unicast+0x449/0x710 [ 6021.647415][ T253] netlink_sendmsg+0x723/0xbe0 [ 6021.647415][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6021.647415][ T253] ___sys_sendmsg+0xee/0x170 [ 6021.647415][ T253] __sys_sendmsg+0xcd/0x170 [ 6021.647415][ T253] do_syscall_64+0xc6/0x1e0 [ 6021.647415][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6021.647415][ T253] [ 6021.649653][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6021.649653][ T253] netdev_get_by_index+0x5e/0x80 [ 6021.649653][ T253] fib6_nh_init+0x3d8/0x1580 [ 6021.649653][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6021.649653][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6021.649653][ T253] ipv6_add_addr+0x411/0x2000 [ 6021.649653][ T253] inet6_addr_add+0x30e/0xa40 [ 6021.649653][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6021.649653][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6021.649653][ T253] netlink_rcv_skb+0x130/0x360 [ 6021.649653][ T253] netlink_unicast+0x449/0x710 [ 6021.649653][ T253] netlink_sendmsg+0x723/0xbe0 [ 6021.649653][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6021.649653][ T253] ___sys_sendmsg+0xee/0x170 [ 6021.649653][ T253] __sys_sendmsg+0xcd/0x170 [ 6021.649653][ T253] do_syscall_64+0xc6/0x1e0 [ 6021.649653][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6021.649653][ T253] [ 6021.652059][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6021.652059][ T253] netdev_get_by_index+0x5e/0x80 [ 6021.652059][ T253] fib6_nh_init+0x3d8/0x1580 [ 6021.652059][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6021.652059][ T253] ip6_route_add+0x1c/0x140 [ 6021.652059][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6021.652059][ T253] addrconf_add_dev+0xe2/0x170 [ 6021.652059][ T253] inet6_addr_add+0x12f/0xa40 [ 6021.652059][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6021.652059][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6021.652059][ T253] netlink_rcv_skb+0x130/0x360 [ 6021.652059][ T253] netlink_unicast+0x449/0x710 [ 6021.652059][ T253] netlink_sendmsg+0x723/0xbe0 [ 6021.652059][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6021.652059][ T253] ___sys_sendmsg+0xee/0x170 [ 6021.652059][ T253] __sys_sendmsg+0xcd/0x170 [ 6021.652059][ T253] do_syscall_64+0xc6/0x1e0 [ 6021.652059][ T253] [ 6021.654312][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6021.654312][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6021.654312][ T253] ipv6_find_idev+0x102/0x170 [ 6021.654312][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6021.654312][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6021.654312][ T253] netlink_rcv_skb+0x130/0x360 [ 6021.654312][ T253] netlink_unicast+0x449/0x710 [ 6021.654312][ T253] netlink_sendmsg+0x723/0xbe0 [ 6021.654312][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6021.654312][ T253] ___sys_sendmsg+0xee/0x170 [ 6021.654312][ T253] __sys_sendmsg+0xcd/0x170 [ 6021.654312][ T253] do_syscall_64+0xc6/0x1e0 [ 6021.654312][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6021.654312][ T253] [ 6021.656050][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6021.656050][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6021.656050][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6021.656050][ T253] ipv6_find_idev+0x102/0x170 [ 6021.656050][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6021.656050][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6021.656050][ T253] netlink_rcv_skb+0x130/0x360 [ 6021.656050][ T253] netlink_unicast+0x449/0x710 [ 6021.656050][ T253] netlink_sendmsg+0x723/0xbe0 [ 6021.656050][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6021.656050][ T253] ___sys_sendmsg+0xee/0x170 [ 6021.656050][ T253] __sys_sendmsg+0xcd/0x170 [ 6021.656050][ T253] do_syscall_64+0xc6/0x1e0 [ 6021.656050][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6021.656050][ T253] [ 6031.706325][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6031.706811][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6031.706811][ T253] dst_init+0x84/0x4a0 [ 6031.706811][ T253] dst_alloc+0x97/0x150 [ 6031.706811][ T253] ip6_dst_alloc+0x23/0x90 [ 6031.706811][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6031.706811][ T253] ip6_pol_route+0x56f/0x840 [ 6031.706811][ T253] fib6_rule_lookup+0x334/0x630 [ 6031.706811][ T253] ip6_route_output_flags+0x259/0x480 [ 6031.706811][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6031.706811][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6031.706811][ T253] netlink_rcv_skb+0x130/0x360 [ 6031.706811][ T253] netlink_unicast+0x449/0x710 [ 6031.706811][ T253] netlink_sendmsg+0x723/0xbe0 [ 6031.706811][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6031.706811][ T253] ___sys_sendmsg+0xee/0x170 [ 6031.706811][ T253] __sys_sendmsg+0xcd/0x170 [ 6031.706811][ T253] do_syscall_64+0xc6/0x1e0 [ 6031.706811][ T253] [ 6031.709042][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6031.709042][ T253] netdev_get_by_index+0x5e/0x80 [ 6031.709042][ T253] fib6_nh_init+0x3d8/0x1580 [ 6031.709042][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6031.709042][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6031.709042][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6031.709042][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6031.709042][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6031.709042][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6031.709042][ T253] addrconf_dad_begin+0x310/0x670 [ 6031.709042][ T253] addrconf_dad_work+0x10b/0xab0 [ 6031.709042][ T253] process_one_work+0x84d/0x18a0 [ 6031.709042][ T253] worker_thread+0x587/0xd30 [ 6031.709042][ T253] kthread+0x28a/0x350 [ 6031.709042][ T253] ret_from_fork+0x31/0x70 [ 6031.709042][ T253] ret_from_fork_asm+0x1a/0x30 [ 6031.709042][ T253] [ 6031.711205][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6031.711205][ T253] netdev_get_by_index+0x5e/0x80 [ 6031.711205][ T253] fib6_nh_init+0x3d8/0x1580 [ 6031.711205][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6031.711205][ T253] ip6_route_add+0x1c/0x140 [ 6031.711205][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6031.711205][ T253] inet6_addr_add+0x4f8/0xa40 [ 6031.711205][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6031.711205][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6031.711205][ T253] netlink_rcv_skb+0x130/0x360 [ 6031.711205][ T253] netlink_unicast+0x449/0x710 [ 6031.711205][ T253] netlink_sendmsg+0x723/0xbe0 [ 6031.711205][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6031.711205][ T253] ___sys_sendmsg+0xee/0x170 [ 6031.711205][ T253] __sys_sendmsg+0xcd/0x170 [ 6031.711205][ T253] do_syscall_64+0xc6/0x1e0 [ 6031.711205][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6031.711205][ T253] [ 6031.713479][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6031.713479][ T253] netdev_get_by_index+0x5e/0x80 [ 6031.713479][ T253] fib6_nh_init+0x3d8/0x1580 [ 6031.713479][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6031.713479][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6031.713479][ T253] ipv6_add_addr+0x411/0x2000 [ 6031.713479][ T253] inet6_addr_add+0x30e/0xa40 [ 6031.713479][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6031.713479][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6031.713479][ T253] netlink_rcv_skb+0x130/0x360 [ 6031.713479][ T253] netlink_unicast+0x449/0x710 [ 6031.713479][ T253] netlink_sendmsg+0x723/0xbe0 [ 6031.713479][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6031.713479][ T253] ___sys_sendmsg+0xee/0x170 [ 6031.713479][ T253] __sys_sendmsg+0xcd/0x170 [ 6031.713479][ T253] do_syscall_64+0xc6/0x1e0 [ 6031.713479][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6031.713479][ T253] [ 6031.715739][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6031.715739][ T253] netdev_get_by_index+0x5e/0x80 [ 6031.715739][ T253] fib6_nh_init+0x3d8/0x1580 [ 6031.715739][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6031.715739][ T253] ip6_route_add+0x1c/0x140 [ 6031.715739][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6031.715739][ T253] addrconf_add_dev+0xe2/0x170 [ 6031.715739][ T253] inet6_addr_add+0x12f/0xa40 [ 6031.715739][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6031.715739][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6031.715739][ T253] netlink_rcv_skb+0x130/0x360 [ 6031.715739][ T253] netlink_unicast+0x449/0x710 [ 6031.715739][ T253] netlink_sendmsg+0x723/0xbe0 [ 6031.715739][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6031.715739][ T253] ___sys_sendmsg+0xee/0x170 [ 6031.715739][ T253] __sys_sendmsg+0xcd/0x170 [ 6031.715739][ T253] do_syscall_64+0xc6/0x1e0 [ 6031.715739][ T253] [ 6031.718060][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6031.718060][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6031.718060][ T253] ipv6_find_idev+0x102/0x170 [ 6031.718060][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6031.718060][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6031.718060][ T253] netlink_rcv_skb+0x130/0x360 [ 6031.718060][ T253] netlink_unicast+0x449/0x710 [ 6031.718060][ T253] netlink_sendmsg+0x723/0xbe0 [ 6031.718060][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6031.718060][ T253] ___sys_sendmsg+0xee/0x170 [ 6031.718060][ T253] __sys_sendmsg+0xcd/0x170 [ 6031.718060][ T253] do_syscall_64+0xc6/0x1e0 [ 6031.718060][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6031.718060][ T253] [ 6031.719795][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6031.719795][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6031.719795][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6031.719795][ T253] ipv6_find_idev+0x102/0x170 [ 6031.719795][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6031.719795][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6031.719795][ T253] netlink_rcv_skb+0x130/0x360 [ 6031.719795][ T253] netlink_unicast+0x449/0x710 [ 6031.719795][ T253] netlink_sendmsg+0x723/0xbe0 [ 6031.719795][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6031.719795][ T253] ___sys_sendmsg+0xee/0x170 [ 6031.719795][ T253] __sys_sendmsg+0xcd/0x170 [ 6031.719795][ T253] do_syscall_64+0xc6/0x1e0 [ 6031.719795][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6031.719795][ T253] [ 6041.962277][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6041.962718][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6041.962718][ T253] dst_init+0x84/0x4a0 [ 6041.962718][ T253] dst_alloc+0x97/0x150 [ 6041.962718][ T253] ip6_dst_alloc+0x23/0x90 [ 6041.962718][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6041.962718][ T253] ip6_pol_route+0x56f/0x840 [ 6041.962718][ T253] fib6_rule_lookup+0x334/0x630 [ 6041.962718][ T253] ip6_route_output_flags+0x259/0x480 [ 6041.962718][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6041.962718][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6041.962718][ T253] netlink_rcv_skb+0x130/0x360 [ 6041.962718][ T253] netlink_unicast+0x449/0x710 [ 6041.962718][ T253] netlink_sendmsg+0x723/0xbe0 [ 6041.962718][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6041.962718][ T253] ___sys_sendmsg+0xee/0x170 [ 6041.962718][ T253] __sys_sendmsg+0xcd/0x170 [ 6041.962718][ T253] do_syscall_64+0xc6/0x1e0 [ 6041.962718][ T253] [ 6041.964927][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6041.964927][ T253] netdev_get_by_index+0x5e/0x80 [ 6041.964927][ T253] fib6_nh_init+0x3d8/0x1580 [ 6041.964927][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6041.964927][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6041.964927][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6041.964927][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6041.964927][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6041.964927][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6041.964927][ T253] addrconf_dad_begin+0x310/0x670 [ 6041.964927][ T253] addrconf_dad_work+0x10b/0xab0 [ 6041.964927][ T253] process_one_work+0x84d/0x18a0 [ 6041.964927][ T253] worker_thread+0x587/0xd30 [ 6041.964927][ T253] kthread+0x28a/0x350 [ 6041.964927][ T253] ret_from_fork+0x31/0x70 [ 6041.964927][ T253] ret_from_fork_asm+0x1a/0x30 [ 6041.964927][ T253] [ 6041.967082][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6041.967082][ T253] netdev_get_by_index+0x5e/0x80 [ 6041.967082][ T253] fib6_nh_init+0x3d8/0x1580 [ 6041.967082][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6041.967082][ T253] ip6_route_add+0x1c/0x140 [ 6041.967082][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6041.967082][ T253] inet6_addr_add+0x4f8/0xa40 [ 6041.967082][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6041.967082][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6041.967082][ T253] netlink_rcv_skb+0x130/0x360 [ 6041.967082][ T253] netlink_unicast+0x449/0x710 [ 6041.967082][ T253] netlink_sendmsg+0x723/0xbe0 [ 6041.967082][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6041.967082][ T253] ___sys_sendmsg+0xee/0x170 [ 6041.967082][ T253] __sys_sendmsg+0xcd/0x170 [ 6041.967082][ T253] do_syscall_64+0xc6/0x1e0 [ 6041.967082][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6041.967082][ T253] [ 6041.969338][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6041.969338][ T253] netdev_get_by_index+0x5e/0x80 [ 6041.969338][ T253] fib6_nh_init+0x3d8/0x1580 [ 6041.969338][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6041.969338][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6041.969338][ T253] ipv6_add_addr+0x411/0x2000 [ 6041.969338][ T253] inet6_addr_add+0x30e/0xa40 [ 6041.969338][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6041.969338][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6041.969338][ T253] netlink_rcv_skb+0x130/0x360 [ 6041.969338][ T253] netlink_unicast+0x449/0x710 [ 6041.969338][ T253] netlink_sendmsg+0x723/0xbe0 [ 6041.969338][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6041.969338][ T253] ___sys_sendmsg+0xee/0x170 [ 6041.969338][ T253] __sys_sendmsg+0xcd/0x170 [ 6041.969338][ T253] do_syscall_64+0xc6/0x1e0 [ 6041.969338][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6041.969338][ T253] [ 6041.971614][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6041.971614][ T253] netdev_get_by_index+0x5e/0x80 [ 6041.971614][ T253] fib6_nh_init+0x3d8/0x1580 [ 6041.971614][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6041.971614][ T253] ip6_route_add+0x1c/0x140 [ 6041.971614][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6041.971614][ T253] addrconf_add_dev+0xe2/0x170 [ 6041.971614][ T253] inet6_addr_add+0x12f/0xa40 [ 6041.971614][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6041.971614][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6041.971614][ T253] netlink_rcv_skb+0x130/0x360 [ 6041.971614][ T253] netlink_unicast+0x449/0x710 [ 6041.971614][ T253] netlink_sendmsg+0x723/0xbe0 [ 6041.971614][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6041.971614][ T253] ___sys_sendmsg+0xee/0x170 [ 6041.971614][ T253] __sys_sendmsg+0xcd/0x170 [ 6041.971614][ T253] do_syscall_64+0xc6/0x1e0 [ 6041.971614][ T253] [ 6041.973830][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6041.973830][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6041.973830][ T253] ipv6_find_idev+0x102/0x170 [ 6041.973830][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6041.973830][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6041.973830][ T253] netlink_rcv_skb+0x130/0x360 [ 6041.973830][ T253] netlink_unicast+0x449/0x710 [ 6041.973830][ T253] netlink_sendmsg+0x723/0xbe0 [ 6041.973830][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6041.973830][ T253] ___sys_sendmsg+0xee/0x170 [ 6041.973830][ T253] __sys_sendmsg+0xcd/0x170 [ 6041.973830][ T253] do_syscall_64+0xc6/0x1e0 [ 6041.973830][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6041.973830][ T253] [ 6041.975569][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6041.975569][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6041.975569][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6041.975569][ T253] ipv6_find_idev+0x102/0x170 [ 6041.975569][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6041.975569][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6041.975569][ T253] netlink_rcv_skb+0x130/0x360 [ 6041.975569][ T253] netlink_unicast+0x449/0x710 [ 6041.975569][ T253] netlink_sendmsg+0x723/0xbe0 [ 6041.975569][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6041.975569][ T253] ___sys_sendmsg+0xee/0x170 [ 6041.975569][ T253] __sys_sendmsg+0xcd/0x170 [ 6041.975569][ T253] do_syscall_64+0xc6/0x1e0 [ 6041.975569][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6041.975569][ T253] [ 6052.218314][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6052.218802][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6052.218802][ T253] dst_init+0x84/0x4a0 [ 6052.218802][ T253] dst_alloc+0x97/0x150 [ 6052.218802][ T253] ip6_dst_alloc+0x23/0x90 [ 6052.218802][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6052.218802][ T253] ip6_pol_route+0x56f/0x840 [ 6052.218802][ T253] fib6_rule_lookup+0x334/0x630 [ 6052.218802][ T253] ip6_route_output_flags+0x259/0x480 [ 6052.218802][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6052.218802][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6052.218802][ T253] netlink_rcv_skb+0x130/0x360 [ 6052.218802][ T253] netlink_unicast+0x449/0x710 [ 6052.218802][ T253] netlink_sendmsg+0x723/0xbe0 [ 6052.218802][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6052.218802][ T253] ___sys_sendmsg+0xee/0x170 [ 6052.218802][ T253] __sys_sendmsg+0xcd/0x170 [ 6052.218802][ T253] do_syscall_64+0xc6/0x1e0 [ 6052.218802][ T253] [ 6052.221130][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6052.221130][ T253] netdev_get_by_index+0x5e/0x80 [ 6052.221130][ T253] fib6_nh_init+0x3d8/0x1580 [ 6052.221130][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6052.221130][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6052.221130][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6052.221130][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6052.221130][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6052.221130][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6052.221130][ T253] addrconf_dad_begin+0x310/0x670 [ 6052.221130][ T253] addrconf_dad_work+0x10b/0xab0 [ 6052.221130][ T253] process_one_work+0x84d/0x18a0 [ 6052.221130][ T253] worker_thread+0x587/0xd30 [ 6052.221130][ T253] kthread+0x28a/0x350 [ 6052.221130][ T253] ret_from_fork+0x31/0x70 [ 6052.221130][ T253] ret_from_fork_asm+0x1a/0x30 [ 6052.221130][ T253] [ 6052.223309][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6052.223309][ T253] netdev_get_by_index+0x5e/0x80 [ 6052.223309][ T253] fib6_nh_init+0x3d8/0x1580 [ 6052.223309][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6052.223309][ T253] ip6_route_add+0x1c/0x140 [ 6052.223309][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6052.223309][ T253] inet6_addr_add+0x4f8/0xa40 [ 6052.223309][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6052.223309][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6052.223309][ T253] netlink_rcv_skb+0x130/0x360 [ 6052.223309][ T253] netlink_unicast+0x449/0x710 [ 6052.223309][ T253] netlink_sendmsg+0x723/0xbe0 [ 6052.223309][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6052.223309][ T253] ___sys_sendmsg+0xee/0x170 [ 6052.223309][ T253] __sys_sendmsg+0xcd/0x170 [ 6052.223309][ T253] do_syscall_64+0xc6/0x1e0 [ 6052.223309][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6052.223309][ T253] [ 6052.225574][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6052.225574][ T253] netdev_get_by_index+0x5e/0x80 [ 6052.225574][ T253] fib6_nh_init+0x3d8/0x1580 [ 6052.225574][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6052.225574][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6052.225574][ T253] ipv6_add_addr+0x411/0x2000 [ 6052.225574][ T253] inet6_addr_add+0x30e/0xa40 [ 6052.225574][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6052.225574][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6052.225574][ T253] netlink_rcv_skb+0x130/0x360 [ 6052.225574][ T253] netlink_unicast+0x449/0x710 [ 6052.225574][ T253] netlink_sendmsg+0x723/0xbe0 [ 6052.225574][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6052.225574][ T253] ___sys_sendmsg+0xee/0x170 [ 6052.225574][ T253] __sys_sendmsg+0xcd/0x170 [ 6052.225574][ T253] do_syscall_64+0xc6/0x1e0 [ 6052.225574][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6052.225574][ T253] [ 6052.227842][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6052.227842][ T253] netdev_get_by_index+0x5e/0x80 [ 6052.227842][ T253] fib6_nh_init+0x3d8/0x1580 [ 6052.227842][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6052.227842][ T253] ip6_route_add+0x1c/0x140 [ 6052.227842][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6052.227842][ T253] addrconf_add_dev+0xe2/0x170 [ 6052.227842][ T253] inet6_addr_add+0x12f/0xa40 [ 6052.227842][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6052.227842][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6052.227842][ T253] netlink_rcv_skb+0x130/0x360 [ 6052.227842][ T253] netlink_unicast+0x449/0x710 [ 6052.227842][ T253] netlink_sendmsg+0x723/0xbe0 [ 6052.227842][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6052.227842][ T253] ___sys_sendmsg+0xee/0x170 [ 6052.227842][ T253] __sys_sendmsg+0xcd/0x170 [ 6052.227842][ T253] do_syscall_64+0xc6/0x1e0 [ 6052.227842][ T253] [ 6052.230079][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6052.230079][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6052.230079][ T253] ipv6_find_idev+0x102/0x170 [ 6052.230079][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6052.230079][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6052.230079][ T253] netlink_rcv_skb+0x130/0x360 [ 6052.230079][ T253] netlink_unicast+0x449/0x710 [ 6052.230079][ T253] netlink_sendmsg+0x723/0xbe0 [ 6052.230079][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6052.230079][ T253] ___sys_sendmsg+0xee/0x170 [ 6052.230079][ T253] __sys_sendmsg+0xcd/0x170 [ 6052.230079][ T253] do_syscall_64+0xc6/0x1e0 [ 6052.230079][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6052.230079][ T253] [ 6052.231830][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6052.231830][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6052.231830][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6052.231830][ T253] ipv6_find_idev+0x102/0x170 [ 6052.231830][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6052.231830][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6052.231830][ T253] netlink_rcv_skb+0x130/0x360 [ 6052.231830][ T253] netlink_unicast+0x449/0x710 [ 6052.231830][ T253] netlink_sendmsg+0x723/0xbe0 [ 6052.231830][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6052.231830][ T253] ___sys_sendmsg+0xee/0x170 [ 6052.231830][ T253] __sys_sendmsg+0xcd/0x170 [ 6052.231830][ T253] do_syscall_64+0xc6/0x1e0 [ 6052.231830][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6052.231830][ T253] [ 6062.474340][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6062.474827][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6062.474827][ T253] dst_init+0x84/0x4a0 [ 6062.474827][ T253] dst_alloc+0x97/0x150 [ 6062.474827][ T253] ip6_dst_alloc+0x23/0x90 [ 6062.474827][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6062.474827][ T253] ip6_pol_route+0x56f/0x840 [ 6062.474827][ T253] fib6_rule_lookup+0x334/0x630 [ 6062.474827][ T253] ip6_route_output_flags+0x259/0x480 [ 6062.474827][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6062.474827][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6062.474827][ T253] netlink_rcv_skb+0x130/0x360 [ 6062.474827][ T253] netlink_unicast+0x449/0x710 [ 6062.474827][ T253] netlink_sendmsg+0x723/0xbe0 [ 6062.474827][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6062.474827][ T253] ___sys_sendmsg+0xee/0x170 [ 6062.474827][ T253] __sys_sendmsg+0xcd/0x170 [ 6062.474827][ T253] do_syscall_64+0xc6/0x1e0 [ 6062.474827][ T253] [ 6062.477053][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6062.477053][ T253] netdev_get_by_index+0x5e/0x80 [ 6062.477053][ T253] fib6_nh_init+0x3d8/0x1580 [ 6062.477053][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6062.477053][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6062.477053][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6062.477053][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6062.477053][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6062.477053][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6062.477053][ T253] addrconf_dad_begin+0x310/0x670 [ 6062.477053][ T253] addrconf_dad_work+0x10b/0xab0 [ 6062.477053][ T253] process_one_work+0x84d/0x18a0 [ 6062.477053][ T253] worker_thread+0x587/0xd30 [ 6062.477053][ T253] kthread+0x28a/0x350 [ 6062.477053][ T253] ret_from_fork+0x31/0x70 [ 6062.477053][ T253] ret_from_fork_asm+0x1a/0x30 [ 6062.477053][ T253] [ 6062.479219][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6062.479219][ T253] netdev_get_by_index+0x5e/0x80 [ 6062.479219][ T253] fib6_nh_init+0x3d8/0x1580 [ 6062.479219][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6062.479219][ T253] ip6_route_add+0x1c/0x140 [ 6062.479219][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6062.479219][ T253] inet6_addr_add+0x4f8/0xa40 [ 6062.479219][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6062.479219][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6062.479219][ T253] netlink_rcv_skb+0x130/0x360 [ 6062.479219][ T253] netlink_unicast+0x449/0x710 [ 6062.479219][ T253] netlink_sendmsg+0x723/0xbe0 [ 6062.479219][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6062.479219][ T253] ___sys_sendmsg+0xee/0x170 [ 6062.479219][ T253] __sys_sendmsg+0xcd/0x170 [ 6062.479219][ T253] do_syscall_64+0xc6/0x1e0 [ 6062.479219][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6062.479219][ T253] [ 6062.481500][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6062.481500][ T253] netdev_get_by_index+0x5e/0x80 [ 6062.481500][ T253] fib6_nh_init+0x3d8/0x1580 [ 6062.481500][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6062.481500][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6062.481500][ T253] ipv6_add_addr+0x411/0x2000 [ 6062.481500][ T253] inet6_addr_add+0x30e/0xa40 [ 6062.481500][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6062.481500][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6062.481500][ T253] netlink_rcv_skb+0x130/0x360 [ 6062.481500][ T253] netlink_unicast+0x449/0x710 [ 6062.481500][ T253] netlink_sendmsg+0x723/0xbe0 [ 6062.481500][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6062.481500][ T253] ___sys_sendmsg+0xee/0x170 [ 6062.481500][ T253] __sys_sendmsg+0xcd/0x170 [ 6062.481500][ T253] do_syscall_64+0xc6/0x1e0 [ 6062.481500][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6062.481500][ T253] [ 6062.483763][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6062.483763][ T253] netdev_get_by_index+0x5e/0x80 [ 6062.483763][ T253] fib6_nh_init+0x3d8/0x1580 [ 6062.483763][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6062.483763][ T253] ip6_route_add+0x1c/0x140 [ 6062.483763][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6062.483763][ T253] addrconf_add_dev+0xe2/0x170 [ 6062.483763][ T253] inet6_addr_add+0x12f/0xa40 [ 6062.483763][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6062.483763][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6062.483763][ T253] netlink_rcv_skb+0x130/0x360 [ 6062.483763][ T253] netlink_unicast+0x449/0x710 [ 6062.483763][ T253] netlink_sendmsg+0x723/0xbe0 [ 6062.483763][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6062.483763][ T253] ___sys_sendmsg+0xee/0x170 [ 6062.483763][ T253] __sys_sendmsg+0xcd/0x170 [ 6062.483763][ T253] do_syscall_64+0xc6/0x1e0 [ 6062.483763][ T253] [ 6062.485995][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6062.485995][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6062.485995][ T253] ipv6_find_idev+0x102/0x170 [ 6062.485995][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6062.485995][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6062.485995][ T253] netlink_rcv_skb+0x130/0x360 [ 6062.485995][ T253] netlink_unicast+0x449/0x710 [ 6062.485995][ T253] netlink_sendmsg+0x723/0xbe0 [ 6062.485995][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6062.485995][ T253] ___sys_sendmsg+0xee/0x170 [ 6062.485995][ T253] __sys_sendmsg+0xcd/0x170 [ 6062.485995][ T253] do_syscall_64+0xc6/0x1e0 [ 6062.485995][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6062.485995][ T253] [ 6062.487741][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6062.487741][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6062.487741][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6062.487741][ T253] ipv6_find_idev+0x102/0x170 [ 6062.487741][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6062.487741][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6062.487741][ T253] netlink_rcv_skb+0x130/0x360 [ 6062.487741][ T253] netlink_unicast+0x449/0x710 [ 6062.487741][ T253] netlink_sendmsg+0x723/0xbe0 [ 6062.487741][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6062.487741][ T253] ___sys_sendmsg+0xee/0x170 [ 6062.487741][ T253] __sys_sendmsg+0xcd/0x170 [ 6062.487741][ T253] do_syscall_64+0xc6/0x1e0 [ 6062.487741][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6062.487741][ T253] [ 6072.730301][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6072.730789][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6072.730789][ T253] dst_init+0x84/0x4a0 [ 6072.730789][ T253] dst_alloc+0x97/0x150 [ 6072.730789][ T253] ip6_dst_alloc+0x23/0x90 [ 6072.730789][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6072.730789][ T253] ip6_pol_route+0x56f/0x840 [ 6072.730789][ T253] fib6_rule_lookup+0x334/0x630 [ 6072.730789][ T253] ip6_route_output_flags+0x259/0x480 [ 6072.730789][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6072.730789][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6072.730789][ T253] netlink_rcv_skb+0x130/0x360 [ 6072.730789][ T253] netlink_unicast+0x449/0x710 [ 6072.730789][ T253] netlink_sendmsg+0x723/0xbe0 [ 6072.730789][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6072.730789][ T253] ___sys_sendmsg+0xee/0x170 [ 6072.730789][ T253] __sys_sendmsg+0xcd/0x170 [ 6072.730789][ T253] do_syscall_64+0xc6/0x1e0 [ 6072.730789][ T253] [ 6072.733022][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6072.733022][ T253] netdev_get_by_index+0x5e/0x80 [ 6072.733022][ T253] fib6_nh_init+0x3d8/0x1580 [ 6072.733022][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6072.733022][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6072.733022][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6072.733022][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6072.733022][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6072.733022][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6072.733022][ T253] addrconf_dad_begin+0x310/0x670 [ 6072.733022][ T253] addrconf_dad_work+0x10b/0xab0 [ 6072.733022][ T253] process_one_work+0x84d/0x18a0 [ 6072.733022][ T253] worker_thread+0x587/0xd30 [ 6072.733022][ T253] kthread+0x28a/0x350 [ 6072.733022][ T253] ret_from_fork+0x31/0x70 [ 6072.733022][ T253] ret_from_fork_asm+0x1a/0x30 [ 6072.733022][ T253] [ 6072.735204][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6072.735204][ T253] netdev_get_by_index+0x5e/0x80 [ 6072.735204][ T253] fib6_nh_init+0x3d8/0x1580 [ 6072.735204][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6072.735204][ T253] ip6_route_add+0x1c/0x140 [ 6072.735204][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6072.735204][ T253] inet6_addr_add+0x4f8/0xa40 [ 6072.735204][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6072.735204][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6072.735204][ T253] netlink_rcv_skb+0x130/0x360 [ 6072.735204][ T253] netlink_unicast+0x449/0x710 [ 6072.735204][ T253] netlink_sendmsg+0x723/0xbe0 [ 6072.735204][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6072.735204][ T253] ___sys_sendmsg+0xee/0x170 [ 6072.735204][ T253] __sys_sendmsg+0xcd/0x170 [ 6072.735204][ T253] do_syscall_64+0xc6/0x1e0 [ 6072.735204][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6072.735204][ T253] [ 6072.737459][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6072.737459][ T253] netdev_get_by_index+0x5e/0x80 [ 6072.737459][ T253] fib6_nh_init+0x3d8/0x1580 [ 6072.737459][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6072.737459][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6072.737459][ T253] ipv6_add_addr+0x411/0x2000 [ 6072.737459][ T253] inet6_addr_add+0x30e/0xa40 [ 6072.737459][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6072.737459][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6072.737459][ T253] netlink_rcv_skb+0x130/0x360 [ 6072.737459][ T253] netlink_unicast+0x449/0x710 [ 6072.737459][ T253] netlink_sendmsg+0x723/0xbe0 [ 6072.737459][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6072.737459][ T253] ___sys_sendmsg+0xee/0x170 [ 6072.737459][ T253] __sys_sendmsg+0xcd/0x170 [ 6072.737459][ T253] do_syscall_64+0xc6/0x1e0 [ 6072.737459][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6072.737459][ T253] [ 6072.739734][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6072.739734][ T253] netdev_get_by_index+0x5e/0x80 [ 6072.739734][ T253] fib6_nh_init+0x3d8/0x1580 [ 6072.739734][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6072.739734][ T253] ip6_route_add+0x1c/0x140 [ 6072.739734][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6072.739734][ T253] addrconf_add_dev+0xe2/0x170 [ 6072.739734][ T253] inet6_addr_add+0x12f/0xa40 [ 6072.739734][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6072.739734][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6072.739734][ T253] netlink_rcv_skb+0x130/0x360 [ 6072.739734][ T253] netlink_unicast+0x449/0x710 [ 6072.739734][ T253] netlink_sendmsg+0x723/0xbe0 [ 6072.739734][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6072.739734][ T253] ___sys_sendmsg+0xee/0x170 [ 6072.739734][ T253] __sys_sendmsg+0xcd/0x170 [ 6072.739734][ T253] do_syscall_64+0xc6/0x1e0 [ 6072.739734][ T253] [ 6072.741967][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6072.741967][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6072.741967][ T253] ipv6_find_idev+0x102/0x170 [ 6072.741967][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6072.741967][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6072.741967][ T253] netlink_rcv_skb+0x130/0x360 [ 6072.741967][ T253] netlink_unicast+0x449/0x710 [ 6072.741967][ T253] netlink_sendmsg+0x723/0xbe0 [ 6072.741967][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6072.741967][ T253] ___sys_sendmsg+0xee/0x170 [ 6072.741967][ T253] __sys_sendmsg+0xcd/0x170 [ 6072.741967][ T253] do_syscall_64+0xc6/0x1e0 [ 6072.741967][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6072.741967][ T253] [ 6072.743710][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6072.743710][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6072.743710][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6072.743710][ T253] ipv6_find_idev+0x102/0x170 [ 6072.743710][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6072.743710][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6072.743710][ T253] netlink_rcv_skb+0x130/0x360 [ 6072.743710][ T253] netlink_unicast+0x449/0x710 [ 6072.743710][ T253] netlink_sendmsg+0x723/0xbe0 [ 6072.743710][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6072.743710][ T253] ___sys_sendmsg+0xee/0x170 [ 6072.743710][ T253] __sys_sendmsg+0xcd/0x170 [ 6072.743710][ T253] do_syscall_64+0xc6/0x1e0 [ 6072.743710][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6072.743710][ T253] [ 6082.986340][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6082.986829][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6082.986829][ T253] dst_init+0x84/0x4a0 [ 6082.986829][ T253] dst_alloc+0x97/0x150 [ 6082.986829][ T253] ip6_dst_alloc+0x23/0x90 [ 6082.986829][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6082.986829][ T253] ip6_pol_route+0x56f/0x840 [ 6082.986829][ T253] fib6_rule_lookup+0x334/0x630 [ 6082.986829][ T253] ip6_route_output_flags+0x259/0x480 [ 6082.986829][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6082.986829][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6082.986829][ T253] netlink_rcv_skb+0x130/0x360 [ 6082.986829][ T253] netlink_unicast+0x449/0x710 [ 6082.986829][ T253] netlink_sendmsg+0x723/0xbe0 [ 6082.986829][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6082.986829][ T253] ___sys_sendmsg+0xee/0x170 [ 6082.986829][ T253] __sys_sendmsg+0xcd/0x170 [ 6082.986829][ T253] do_syscall_64+0xc6/0x1e0 [ 6082.986829][ T253] [ 6082.989077][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6082.989077][ T253] netdev_get_by_index+0x5e/0x80 [ 6082.989077][ T253] fib6_nh_init+0x3d8/0x1580 [ 6082.989077][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6082.989077][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6082.989077][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6082.989077][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6082.989077][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6082.989077][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6082.989077][ T253] addrconf_dad_begin+0x310/0x670 [ 6082.989077][ T253] addrconf_dad_work+0x10b/0xab0 [ 6082.989077][ T253] process_one_work+0x84d/0x18a0 [ 6082.989077][ T253] worker_thread+0x587/0xd30 [ 6082.989077][ T253] kthread+0x28a/0x350 [ 6082.989077][ T253] ret_from_fork+0x31/0x70 [ 6082.989077][ T253] ret_from_fork_asm+0x1a/0x30 [ 6082.989077][ T253] [ 6082.991252][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6082.991252][ T253] netdev_get_by_index+0x5e/0x80 [ 6082.991252][ T253] fib6_nh_init+0x3d8/0x1580 [ 6082.991252][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6082.991252][ T253] ip6_route_add+0x1c/0x140 [ 6082.991252][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6082.991252][ T253] inet6_addr_add+0x4f8/0xa40 [ 6082.991252][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6082.991252][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6082.991252][ T253] netlink_rcv_skb+0x130/0x360 [ 6082.991252][ T253] netlink_unicast+0x449/0x710 [ 6082.991252][ T253] netlink_sendmsg+0x723/0xbe0 [ 6082.991252][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6082.991252][ T253] ___sys_sendmsg+0xee/0x170 [ 6082.991252][ T253] __sys_sendmsg+0xcd/0x170 [ 6082.991252][ T253] do_syscall_64+0xc6/0x1e0 [ 6082.991252][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6082.991252][ T253] [ 6082.993523][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6082.993523][ T253] netdev_get_by_index+0x5e/0x80 [ 6082.993523][ T253] fib6_nh_init+0x3d8/0x1580 [ 6082.993523][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6082.993523][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6082.993523][ T253] ipv6_add_addr+0x411/0x2000 [ 6082.993523][ T253] inet6_addr_add+0x30e/0xa40 [ 6082.993523][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6082.993523][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6082.993523][ T253] netlink_rcv_skb+0x130/0x360 [ 6082.993523][ T253] netlink_unicast+0x449/0x710 [ 6082.993523][ T253] netlink_sendmsg+0x723/0xbe0 [ 6082.993523][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6082.993523][ T253] ___sys_sendmsg+0xee/0x170 [ 6082.993523][ T253] __sys_sendmsg+0xcd/0x170 [ 6082.993523][ T253] do_syscall_64+0xc6/0x1e0 [ 6082.993523][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6082.993523][ T253] [ 6082.995787][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6082.995787][ T253] netdev_get_by_index+0x5e/0x80 [ 6082.995787][ T253] fib6_nh_init+0x3d8/0x1580 [ 6082.995787][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6082.995787][ T253] ip6_route_add+0x1c/0x140 [ 6082.995787][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6082.995787][ T253] addrconf_add_dev+0xe2/0x170 [ 6082.995787][ T253] inet6_addr_add+0x12f/0xa40 [ 6082.995787][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6082.995787][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6082.995787][ T253] netlink_rcv_skb+0x130/0x360 [ 6082.995787][ T253] netlink_unicast+0x449/0x710 [ 6082.995787][ T253] netlink_sendmsg+0x723/0xbe0 [ 6082.995787][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6082.995787][ T253] ___sys_sendmsg+0xee/0x170 [ 6082.995787][ T253] __sys_sendmsg+0xcd/0x170 [ 6082.995787][ T253] do_syscall_64+0xc6/0x1e0 [ 6082.995787][ T253] [ 6082.998017][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6082.998017][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6082.998017][ T253] ipv6_find_idev+0x102/0x170 [ 6082.998017][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6082.998017][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6082.998017][ T253] netlink_rcv_skb+0x130/0x360 [ 6082.998017][ T253] netlink_unicast+0x449/0x710 [ 6082.998017][ T253] netlink_sendmsg+0x723/0xbe0 [ 6082.998017][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6082.998017][ T253] ___sys_sendmsg+0xee/0x170 [ 6082.998017][ T253] __sys_sendmsg+0xcd/0x170 [ 6082.998017][ T253] do_syscall_64+0xc6/0x1e0 [ 6082.998017][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6082.998017][ T253] [ 6082.999763][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6082.999763][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6082.999763][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6082.999763][ T253] ipv6_find_idev+0x102/0x170 [ 6082.999763][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6082.999763][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6082.999763][ T253] netlink_rcv_skb+0x130/0x360 [ 6082.999763][ T253] netlink_unicast+0x449/0x710 [ 6082.999763][ T253] netlink_sendmsg+0x723/0xbe0 [ 6082.999763][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6082.999763][ T253] ___sys_sendmsg+0xee/0x170 [ 6082.999763][ T253] __sys_sendmsg+0xcd/0x170 [ 6082.999763][ T253] do_syscall_64+0xc6/0x1e0 [ 6082.999763][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6082.999763][ T253] [ 6093.242326][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6093.242832][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6093.242832][ T253] dst_init+0x84/0x4a0 [ 6093.242832][ T253] dst_alloc+0x97/0x150 [ 6093.242832][ T253] ip6_dst_alloc+0x23/0x90 [ 6093.242832][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6093.242832][ T253] ip6_pol_route+0x56f/0x840 [ 6093.242832][ T253] fib6_rule_lookup+0x334/0x630 [ 6093.242832][ T253] ip6_route_output_flags+0x259/0x480 [ 6093.242832][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6093.242832][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6093.242832][ T253] netlink_rcv_skb+0x130/0x360 [ 6093.242832][ T253] netlink_unicast+0x449/0x710 [ 6093.242832][ T253] netlink_sendmsg+0x723/0xbe0 [ 6093.242832][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6093.242832][ T253] ___sys_sendmsg+0xee/0x170 [ 6093.242832][ T253] __sys_sendmsg+0xcd/0x170 [ 6093.242832][ T253] do_syscall_64+0xc6/0x1e0 [ 6093.242832][ T253] [ 6093.245058][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6093.245058][ T253] netdev_get_by_index+0x5e/0x80 [ 6093.245058][ T253] fib6_nh_init+0x3d8/0x1580 [ 6093.245058][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6093.245058][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6093.245058][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6093.245058][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6093.245058][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6093.245058][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6093.245058][ T253] addrconf_dad_begin+0x310/0x670 [ 6093.245058][ T253] addrconf_dad_work+0x10b/0xab0 [ 6093.245058][ T253] process_one_work+0x84d/0x18a0 [ 6093.245058][ T253] worker_thread+0x587/0xd30 [ 6093.245058][ T253] kthread+0x28a/0x350 [ 6093.245058][ T253] ret_from_fork+0x31/0x70 [ 6093.245058][ T253] ret_from_fork_asm+0x1a/0x30 [ 6093.245058][ T253] [ 6093.247222][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6093.247222][ T253] netdev_get_by_index+0x5e/0x80 [ 6093.247222][ T253] fib6_nh_init+0x3d8/0x1580 [ 6093.247222][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6093.247222][ T253] ip6_route_add+0x1c/0x140 [ 6093.247222][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6093.247222][ T253] inet6_addr_add+0x4f8/0xa40 [ 6093.247222][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6093.247222][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6093.247222][ T253] netlink_rcv_skb+0x130/0x360 [ 6093.247222][ T253] netlink_unicast+0x449/0x710 [ 6093.247222][ T253] netlink_sendmsg+0x723/0xbe0 [ 6093.247222][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6093.247222][ T253] ___sys_sendmsg+0xee/0x170 [ 6093.247222][ T253] __sys_sendmsg+0xcd/0x170 [ 6093.247222][ T253] do_syscall_64+0xc6/0x1e0 [ 6093.247222][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6093.247222][ T253] [ 6093.249501][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6093.249501][ T253] netdev_get_by_index+0x5e/0x80 [ 6093.249501][ T253] fib6_nh_init+0x3d8/0x1580 [ 6093.249501][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6093.249501][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6093.249501][ T253] ipv6_add_addr+0x411/0x2000 [ 6093.249501][ T253] inet6_addr_add+0x30e/0xa40 [ 6093.249501][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6093.249501][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6093.249501][ T253] netlink_rcv_skb+0x130/0x360 [ 6093.249501][ T253] netlink_unicast+0x449/0x710 [ 6093.249501][ T253] netlink_sendmsg+0x723/0xbe0 [ 6093.249501][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6093.249501][ T253] ___sys_sendmsg+0xee/0x170 [ 6093.249501][ T253] __sys_sendmsg+0xcd/0x170 [ 6093.249501][ T253] do_syscall_64+0xc6/0x1e0 [ 6093.249501][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6093.249501][ T253] [ 6093.251795][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6093.251795][ T253] netdev_get_by_index+0x5e/0x80 [ 6093.251795][ T253] fib6_nh_init+0x3d8/0x1580 [ 6093.251795][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6093.251795][ T253] ip6_route_add+0x1c/0x140 [ 6093.251795][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6093.251795][ T253] addrconf_add_dev+0xe2/0x170 [ 6093.251795][ T253] inet6_addr_add+0x12f/0xa40 [ 6093.251795][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6093.251795][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6093.251795][ T253] netlink_rcv_skb+0x130/0x360 [ 6093.251795][ T253] netlink_unicast+0x449/0x710 [ 6093.251795][ T253] netlink_sendmsg+0x723/0xbe0 [ 6093.251795][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6093.251795][ T253] ___sys_sendmsg+0xee/0x170 [ 6093.251795][ T253] __sys_sendmsg+0xcd/0x170 [ 6093.251795][ T253] do_syscall_64+0xc6/0x1e0 [ 6093.251795][ T253] [ 6093.254020][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6093.254020][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6093.254020][ T253] ipv6_find_idev+0x102/0x170 [ 6093.254020][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6093.254020][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6093.254020][ T253] netlink_rcv_skb+0x130/0x360 [ 6093.254020][ T253] netlink_unicast+0x449/0x710 [ 6093.254020][ T253] netlink_sendmsg+0x723/0xbe0 [ 6093.254020][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6093.254020][ T253] ___sys_sendmsg+0xee/0x170 [ 6093.254020][ T253] __sys_sendmsg+0xcd/0x170 [ 6093.254020][ T253] do_syscall_64+0xc6/0x1e0 [ 6093.254020][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6093.254020][ T253] [ 6093.255765][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6093.255765][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6093.255765][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6093.255765][ T253] ipv6_find_idev+0x102/0x170 [ 6093.255765][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6093.255765][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6093.255765][ T253] netlink_rcv_skb+0x130/0x360 [ 6093.255765][ T253] netlink_unicast+0x449/0x710 [ 6093.255765][ T253] netlink_sendmsg+0x723/0xbe0 [ 6093.255765][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6093.255765][ T253] ___sys_sendmsg+0xee/0x170 [ 6093.255765][ T253] __sys_sendmsg+0xcd/0x170 [ 6093.255765][ T253] do_syscall_64+0xc6/0x1e0 [ 6093.255765][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6093.255765][ T253] [ 6103.498298][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6103.498804][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6103.498804][ T253] dst_init+0x84/0x4a0 [ 6103.498804][ T253] dst_alloc+0x97/0x150 [ 6103.498804][ T253] ip6_dst_alloc+0x23/0x90 [ 6103.498804][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6103.498804][ T253] ip6_pol_route+0x56f/0x840 [ 6103.498804][ T253] fib6_rule_lookup+0x334/0x630 [ 6103.498804][ T253] ip6_route_output_flags+0x259/0x480 [ 6103.498804][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6103.498804][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6103.498804][ T253] netlink_rcv_skb+0x130/0x360 [ 6103.498804][ T253] netlink_unicast+0x449/0x710 [ 6103.498804][ T253] netlink_sendmsg+0x723/0xbe0 [ 6103.498804][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6103.498804][ T253] ___sys_sendmsg+0xee/0x170 [ 6103.498804][ T253] __sys_sendmsg+0xcd/0x170 [ 6103.498804][ T253] do_syscall_64+0xc6/0x1e0 [ 6103.498804][ T253] [ 6103.501039][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6103.501039][ T253] netdev_get_by_index+0x5e/0x80 [ 6103.501039][ T253] fib6_nh_init+0x3d8/0x1580 [ 6103.501039][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6103.501039][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6103.501039][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6103.501039][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6103.501039][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6103.501039][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6103.501039][ T253] addrconf_dad_begin+0x310/0x670 [ 6103.501039][ T253] addrconf_dad_work+0x10b/0xab0 [ 6103.501039][ T253] process_one_work+0x84d/0x18a0 [ 6103.501039][ T253] worker_thread+0x587/0xd30 [ 6103.501039][ T253] kthread+0x28a/0x350 [ 6103.501039][ T253] ret_from_fork+0x31/0x70 [ 6103.501039][ T253] ret_from_fork_asm+0x1a/0x30 [ 6103.501039][ T253] [ 6103.503711][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6103.503711][ T253] netdev_get_by_index+0x5e/0x80 [ 6103.503711][ T253] fib6_nh_init+0x3d8/0x1580 [ 6103.503711][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6103.503711][ T253] ip6_route_add+0x1c/0x140 [ 6103.503711][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6103.503711][ T253] inet6_addr_add+0x4f8/0xa40 [ 6103.503711][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6103.503711][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6103.503711][ T253] netlink_rcv_skb+0x130/0x360 [ 6103.503711][ T253] netlink_unicast+0x449/0x710 [ 6103.503711][ T253] netlink_sendmsg+0x723/0xbe0 [ 6103.503711][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6103.503711][ T253] ___sys_sendmsg+0xee/0x170 [ 6103.503711][ T253] __sys_sendmsg+0xcd/0x170 [ 6103.503711][ T253] do_syscall_64+0xc6/0x1e0 [ 6103.503711][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6103.503711][ T253] [ 6103.505920][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6103.505920][ T253] netdev_get_by_index+0x5e/0x80 [ 6103.505920][ T253] fib6_nh_init+0x3d8/0x1580 [ 6103.505920][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6103.505920][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6103.505920][ T253] ipv6_add_addr+0x411/0x2000 [ 6103.505920][ T253] inet6_addr_add+0x30e/0xa40 [ 6103.505920][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6103.505920][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6103.505920][ T253] netlink_rcv_skb+0x130/0x360 [ 6103.505920][ T253] netlink_unicast+0x449/0x710 [ 6103.505920][ T253] netlink_sendmsg+0x723/0xbe0 [ 6103.505920][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6103.505920][ T253] ___sys_sendmsg+0xee/0x170 [ 6103.505920][ T253] __sys_sendmsg+0xcd/0x170 [ 6103.505920][ T253] do_syscall_64+0xc6/0x1e0 [ 6103.505920][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6103.505920][ T253] [ 6103.508183][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6103.508183][ T253] netdev_get_by_index+0x5e/0x80 [ 6103.508183][ T253] fib6_nh_init+0x3d8/0x1580 [ 6103.508183][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6103.508183][ T253] ip6_route_add+0x1c/0x140 [ 6103.508183][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6103.508183][ T253] addrconf_add_dev+0xe2/0x170 [ 6103.508183][ T253] inet6_addr_add+0x12f/0xa40 [ 6103.508183][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6103.508183][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6103.508183][ T253] netlink_rcv_skb+0x130/0x360 [ 6103.508183][ T253] netlink_unicast+0x449/0x710 [ 6103.508183][ T253] netlink_sendmsg+0x723/0xbe0 [ 6103.508183][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6103.508183][ T253] ___sys_sendmsg+0xee/0x170 [ 6103.508183][ T253] __sys_sendmsg+0xcd/0x170 [ 6103.508183][ T253] do_syscall_64+0xc6/0x1e0 [ 6103.508183][ T253] [ 6103.510378][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6103.510378][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6103.510378][ T253] ipv6_find_idev+0x102/0x170 [ 6103.510378][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6103.510378][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6103.510378][ T253] netlink_rcv_skb+0x130/0x360 [ 6103.510378][ T253] netlink_unicast+0x449/0x710 [ 6103.510378][ T253] netlink_sendmsg+0x723/0xbe0 [ 6103.510378][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6103.510378][ T253] ___sys_sendmsg+0xee/0x170 [ 6103.510378][ T253] __sys_sendmsg+0xcd/0x170 [ 6103.510378][ T253] do_syscall_64+0xc6/0x1e0 [ 6103.510378][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6103.510378][ T253] [ 6103.512137][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6103.512137][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6103.512137][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6103.512137][ T253] ipv6_find_idev+0x102/0x170 [ 6103.512137][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6103.512137][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6103.512137][ T253] netlink_rcv_skb+0x130/0x360 [ 6103.512137][ T253] netlink_unicast+0x449/0x710 [ 6103.512137][ T253] netlink_sendmsg+0x723/0xbe0 [ 6103.512137][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6103.512137][ T253] ___sys_sendmsg+0xee/0x170 [ 6103.512137][ T253] __sys_sendmsg+0xcd/0x170 [ 6103.512137][ T253] do_syscall_64+0xc6/0x1e0 [ 6103.512137][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6103.512137][ T253] [ 6113.754335][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6113.754827][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6113.754827][ T253] dst_init+0x84/0x4a0 [ 6113.754827][ T253] dst_alloc+0x97/0x150 [ 6113.754827][ T253] ip6_dst_alloc+0x23/0x90 [ 6113.754827][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6113.754827][ T253] ip6_pol_route+0x56f/0x840 [ 6113.754827][ T253] fib6_rule_lookup+0x334/0x630 [ 6113.754827][ T253] ip6_route_output_flags+0x259/0x480 [ 6113.754827][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6113.754827][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6113.754827][ T253] netlink_rcv_skb+0x130/0x360 [ 6113.754827][ T253] netlink_unicast+0x449/0x710 [ 6113.754827][ T253] netlink_sendmsg+0x723/0xbe0 [ 6113.754827][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6113.754827][ T253] ___sys_sendmsg+0xee/0x170 [ 6113.754827][ T253] __sys_sendmsg+0xcd/0x170 [ 6113.754827][ T253] do_syscall_64+0xc6/0x1e0 [ 6113.754827][ T253] [ 6113.757058][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6113.757058][ T253] netdev_get_by_index+0x5e/0x80 [ 6113.757058][ T253] fib6_nh_init+0x3d8/0x1580 [ 6113.757058][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6113.757058][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6113.757058][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6113.757058][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6113.757058][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6113.757058][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6113.757058][ T253] addrconf_dad_begin+0x310/0x670 [ 6113.757058][ T253] addrconf_dad_work+0x10b/0xab0 [ 6113.757058][ T253] process_one_work+0x84d/0x18a0 [ 6113.757058][ T253] worker_thread+0x587/0xd30 [ 6113.757058][ T253] kthread+0x28a/0x350 [ 6113.757058][ T253] ret_from_fork+0x31/0x70 [ 6113.757058][ T253] ret_from_fork_asm+0x1a/0x30 [ 6113.757058][ T253] [ 6113.759250][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6113.759250][ T253] netdev_get_by_index+0x5e/0x80 [ 6113.759250][ T253] fib6_nh_init+0x3d8/0x1580 [ 6113.759250][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6113.759250][ T253] ip6_route_add+0x1c/0x140 [ 6113.759250][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6113.759250][ T253] inet6_addr_add+0x4f8/0xa40 [ 6113.759250][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6113.759250][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6113.759250][ T253] netlink_rcv_skb+0x130/0x360 [ 6113.759250][ T253] netlink_unicast+0x449/0x710 [ 6113.759250][ T253] netlink_sendmsg+0x723/0xbe0 [ 6113.759250][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6113.759250][ T253] ___sys_sendmsg+0xee/0x170 [ 6113.759250][ T253] __sys_sendmsg+0xcd/0x170 [ 6113.759250][ T253] do_syscall_64+0xc6/0x1e0 [ 6113.759250][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6113.759250][ T253] [ 6113.761526][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6113.761526][ T253] netdev_get_by_index+0x5e/0x80 [ 6113.761526][ T253] fib6_nh_init+0x3d8/0x1580 [ 6113.761526][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6113.761526][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6113.761526][ T253] ipv6_add_addr+0x411/0x2000 [ 6113.761526][ T253] inet6_addr_add+0x30e/0xa40 [ 6113.761526][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6113.761526][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6113.761526][ T253] netlink_rcv_skb+0x130/0x360 [ 6113.761526][ T253] netlink_unicast+0x449/0x710 [ 6113.761526][ T253] netlink_sendmsg+0x723/0xbe0 [ 6113.761526][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6113.761526][ T253] ___sys_sendmsg+0xee/0x170 [ 6113.761526][ T253] __sys_sendmsg+0xcd/0x170 [ 6113.761526][ T253] do_syscall_64+0xc6/0x1e0 [ 6113.761526][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6113.761526][ T253] [ 6113.763785][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6113.763785][ T253] netdev_get_by_index+0x5e/0x80 [ 6113.763785][ T253] fib6_nh_init+0x3d8/0x1580 [ 6113.763785][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6113.763785][ T253] ip6_route_add+0x1c/0x140 [ 6113.763785][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6113.763785][ T253] addrconf_add_dev+0xe2/0x170 [ 6113.763785][ T253] inet6_addr_add+0x12f/0xa40 [ 6113.763785][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6113.763785][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6113.763785][ T253] netlink_rcv_skb+0x130/0x360 [ 6113.763785][ T253] netlink_unicast+0x449/0x710 [ 6113.763785][ T253] netlink_sendmsg+0x723/0xbe0 [ 6113.763785][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6113.763785][ T253] ___sys_sendmsg+0xee/0x170 [ 6113.763785][ T253] __sys_sendmsg+0xcd/0x170 [ 6113.763785][ T253] do_syscall_64+0xc6/0x1e0 [ 6113.763785][ T253] [ 6113.766003][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6113.766003][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6113.766003][ T253] ipv6_find_idev+0x102/0x170 [ 6113.766003][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6113.766003][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6113.766003][ T253] netlink_rcv_skb+0x130/0x360 [ 6113.766003][ T253] netlink_unicast+0x449/0x710 [ 6113.766003][ T253] netlink_sendmsg+0x723/0xbe0 [ 6113.766003][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6113.766003][ T253] ___sys_sendmsg+0xee/0x170 [ 6113.766003][ T253] __sys_sendmsg+0xcd/0x170 [ 6113.766003][ T253] do_syscall_64+0xc6/0x1e0 [ 6113.766003][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6113.766003][ T253] [ 6113.767743][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6113.767743][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6113.767743][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6113.767743][ T253] ipv6_find_idev+0x102/0x170 [ 6113.767743][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6113.767743][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6113.767743][ T253] netlink_rcv_skb+0x130/0x360 [ 6113.767743][ T253] netlink_unicast+0x449/0x710 [ 6113.767743][ T253] netlink_sendmsg+0x723/0xbe0 [ 6113.767743][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6113.767743][ T253] ___sys_sendmsg+0xee/0x170 [ 6113.767743][ T253] __sys_sendmsg+0xcd/0x170 [ 6113.767743][ T253] do_syscall_64+0xc6/0x1e0 [ 6113.767743][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6113.767743][ T253] [ 6123.802325][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6123.802811][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6123.802811][ T253] dst_init+0x84/0x4a0 [ 6123.802811][ T253] dst_alloc+0x97/0x150 [ 6123.802811][ T253] ip6_dst_alloc+0x23/0x90 [ 6123.802811][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6123.802811][ T253] ip6_pol_route+0x56f/0x840 [ 6123.802811][ T253] fib6_rule_lookup+0x334/0x630 [ 6123.802811][ T253] ip6_route_output_flags+0x259/0x480 [ 6123.802811][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6123.802811][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6123.802811][ T253] netlink_rcv_skb+0x130/0x360 [ 6123.802811][ T253] netlink_unicast+0x449/0x710 [ 6123.802811][ T253] netlink_sendmsg+0x723/0xbe0 [ 6123.802811][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6123.802811][ T253] ___sys_sendmsg+0xee/0x170 [ 6123.802811][ T253] __sys_sendmsg+0xcd/0x170 [ 6123.802811][ T253] do_syscall_64+0xc6/0x1e0 [ 6123.802811][ T253] [ 6123.805472][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6123.805472][ T253] netdev_get_by_index+0x5e/0x80 [ 6123.805472][ T253] fib6_nh_init+0x3d8/0x1580 [ 6123.805472][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6123.805472][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6123.805472][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6123.805472][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6123.805472][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6123.805472][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6123.805472][ T253] addrconf_dad_begin+0x310/0x670 [ 6123.805472][ T253] addrconf_dad_work+0x10b/0xab0 [ 6123.805472][ T253] process_one_work+0x84d/0x18a0 [ 6123.805472][ T253] worker_thread+0x587/0xd30 [ 6123.805472][ T253] kthread+0x28a/0x350 [ 6123.805472][ T253] ret_from_fork+0x31/0x70 [ 6123.805472][ T253] ret_from_fork_asm+0x1a/0x30 [ 6123.805472][ T253] [ 6123.808076][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6123.808076][ T253] netdev_get_by_index+0x5e/0x80 [ 6123.808076][ T253] fib6_nh_init+0x3d8/0x1580 [ 6123.808076][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6123.808076][ T253] ip6_route_add+0x1c/0x140 [ 6123.808076][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6123.808076][ T253] inet6_addr_add+0x4f8/0xa40 [ 6123.808076][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6123.808076][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6123.808076][ T253] netlink_rcv_skb+0x130/0x360 [ 6123.808076][ T253] netlink_unicast+0x449/0x710 [ 6123.808076][ T253] netlink_sendmsg+0x723/0xbe0 [ 6123.808076][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6123.808076][ T253] ___sys_sendmsg+0xee/0x170 [ 6123.808076][ T253] __sys_sendmsg+0xcd/0x170 [ 6123.808076][ T253] do_syscall_64+0xc6/0x1e0 [ 6123.808076][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6123.808076][ T253] [ 6123.810799][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6123.810799][ T253] netdev_get_by_index+0x5e/0x80 [ 6123.810799][ T253] fib6_nh_init+0x3d8/0x1580 [ 6123.810799][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6123.810799][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6123.810799][ T253] ipv6_add_addr+0x411/0x2000 [ 6123.810799][ T253] inet6_addr_add+0x30e/0xa40 [ 6123.810799][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6123.810799][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6123.810799][ T253] netlink_rcv_skb+0x130/0x360 [ 6123.810799][ T253] netlink_unicast+0x449/0x710 [ 6123.810799][ T253] netlink_sendmsg+0x723/0xbe0 [ 6123.810799][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6123.810799][ T253] ___sys_sendmsg+0xee/0x170 [ 6123.810799][ T253] __sys_sendmsg+0xcd/0x170 [ 6123.810799][ T253] do_syscall_64+0xc6/0x1e0 [ 6123.810799][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6123.810799][ T253] [ 6123.813522][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6123.813522][ T253] netdev_get_by_index+0x5e/0x80 [ 6123.813522][ T253] fib6_nh_init+0x3d8/0x1580 [ 6123.813522][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6123.813522][ T253] ip6_route_add+0x1c/0x140 [ 6123.813522][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6123.813522][ T253] addrconf_add_dev+0xe2/0x170 [ 6123.813522][ T253] inet6_addr_add+0x12f/0xa40 [ 6123.813522][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6123.813522][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6123.813522][ T253] netlink_rcv_skb+0x130/0x360 [ 6123.813522][ T253] netlink_unicast+0x449/0x710 [ 6123.813522][ T253] netlink_sendmsg+0x723/0xbe0 [ 6123.813522][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6123.813522][ T253] ___sys_sendmsg+0xee/0x170 [ 6123.813522][ T253] __sys_sendmsg+0xcd/0x170 [ 6123.813522][ T253] do_syscall_64+0xc6/0x1e0 [ 6123.813522][ T253] [ 6123.816203][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6123.816203][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6123.816203][ T253] ipv6_find_idev+0x102/0x170 [ 6123.816203][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6123.816203][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6123.816203][ T253] netlink_rcv_skb+0x130/0x360 [ 6123.816203][ T253] netlink_unicast+0x449/0x710 [ 6123.816203][ T253] netlink_sendmsg+0x723/0xbe0 [ 6123.816203][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6123.816203][ T253] ___sys_sendmsg+0xee/0x170 [ 6123.816203][ T253] __sys_sendmsg+0xcd/0x170 [ 6123.816203][ T253] do_syscall_64+0xc6/0x1e0 [ 6123.816203][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6123.816203][ T253] [ 6123.818307][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6123.818307][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6123.818307][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6123.818307][ T253] ipv6_find_idev+0x102/0x170 [ 6123.818307][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6123.818307][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6123.818307][ T253] netlink_rcv_skb+0x130/0x360 [ 6123.818307][ T253] netlink_unicast+0x449/0x710 [ 6123.818307][ T253] netlink_sendmsg+0x723/0xbe0 [ 6123.818307][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6123.818307][ T253] ___sys_sendmsg+0xee/0x170 [ 6123.818307][ T253] __sys_sendmsg+0xcd/0x170 [ 6123.818307][ T253] do_syscall_64+0xc6/0x1e0 [ 6123.818307][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6123.818307][ T253] [ 6134.058318][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6134.058807][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6134.058807][ T253] dst_init+0x84/0x4a0 [ 6134.058807][ T253] dst_alloc+0x97/0x150 [ 6134.058807][ T253] ip6_dst_alloc+0x23/0x90 [ 6134.058807][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6134.058807][ T253] ip6_pol_route+0x56f/0x840 [ 6134.058807][ T253] fib6_rule_lookup+0x334/0x630 [ 6134.058807][ T253] ip6_route_output_flags+0x259/0x480 [ 6134.058807][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6134.058807][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6134.058807][ T253] netlink_rcv_skb+0x130/0x360 [ 6134.058807][ T253] netlink_unicast+0x449/0x710 [ 6134.058807][ T253] netlink_sendmsg+0x723/0xbe0 [ 6134.058807][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6134.058807][ T253] ___sys_sendmsg+0xee/0x170 [ 6134.058807][ T253] __sys_sendmsg+0xcd/0x170 [ 6134.058807][ T253] do_syscall_64+0xc6/0x1e0 [ 6134.058807][ T253] [ 6134.061484][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6134.061484][ T253] netdev_get_by_index+0x5e/0x80 [ 6134.061484][ T253] fib6_nh_init+0x3d8/0x1580 [ 6134.061484][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6134.061484][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6134.061484][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6134.061484][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6134.061484][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6134.061484][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6134.061484][ T253] addrconf_dad_begin+0x310/0x670 [ 6134.061484][ T253] addrconf_dad_work+0x10b/0xab0 [ 6134.061484][ T253] process_one_work+0x84d/0x18a0 [ 6134.061484][ T253] worker_thread+0x587/0xd30 [ 6134.061484][ T253] kthread+0x28a/0x350 [ 6134.061484][ T253] ret_from_fork+0x31/0x70 [ 6134.061484][ T253] ret_from_fork_asm+0x1a/0x30 [ 6134.061484][ T253] [ 6134.064083][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6134.064083][ T253] netdev_get_by_index+0x5e/0x80 [ 6134.064083][ T253] fib6_nh_init+0x3d8/0x1580 [ 6134.064083][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6134.064083][ T253] ip6_route_add+0x1c/0x140 [ 6134.064083][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6134.064083][ T253] inet6_addr_add+0x4f8/0xa40 [ 6134.064083][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6134.064083][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6134.064083][ T253] netlink_rcv_skb+0x130/0x360 [ 6134.064083][ T253] netlink_unicast+0x449/0x710 [ 6134.064083][ T253] netlink_sendmsg+0x723/0xbe0 [ 6134.064083][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6134.064083][ T253] ___sys_sendmsg+0xee/0x170 [ 6134.064083][ T253] __sys_sendmsg+0xcd/0x170 [ 6134.064083][ T253] do_syscall_64+0xc6/0x1e0 [ 6134.064083][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6134.064083][ T253] [ 6134.066813][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6134.066813][ T253] netdev_get_by_index+0x5e/0x80 [ 6134.066813][ T253] fib6_nh_init+0x3d8/0x1580 [ 6134.066813][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6134.066813][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6134.066813][ T253] ipv6_add_addr+0x411/0x2000 [ 6134.066813][ T253] inet6_addr_add+0x30e/0xa40 [ 6134.066813][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6134.066813][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6134.066813][ T253] netlink_rcv_skb+0x130/0x360 [ 6134.066813][ T253] netlink_unicast+0x449/0x710 [ 6134.066813][ T253] netlink_sendmsg+0x723/0xbe0 [ 6134.066813][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6134.066813][ T253] ___sys_sendmsg+0xee/0x170 [ 6134.066813][ T253] __sys_sendmsg+0xcd/0x170 [ 6134.066813][ T253] do_syscall_64+0xc6/0x1e0 [ 6134.066813][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6134.066813][ T253] [ 6134.070051][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6134.070051][ T253] netdev_get_by_index+0x5e/0x80 [ 6134.070051][ T253] fib6_nh_init+0x3d8/0x1580 [ 6134.070051][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6134.070051][ T253] ip6_route_add+0x1c/0x140 [ 6134.070051][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6134.070051][ T253] addrconf_add_dev+0xe2/0x170 [ 6134.070051][ T253] inet6_addr_add+0x12f/0xa40 [ 6134.070051][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6134.070051][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6134.070051][ T253] netlink_rcv_skb+0x130/0x360 [ 6134.070051][ T253] netlink_unicast+0x449/0x710 [ 6134.070051][ T253] netlink_sendmsg+0x723/0xbe0 [ 6134.070051][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6134.070051][ T253] ___sys_sendmsg+0xee/0x170 [ 6134.070051][ T253] __sys_sendmsg+0xcd/0x170 [ 6134.070051][ T253] do_syscall_64+0xc6/0x1e0 [ 6134.070051][ T253] [ 6134.072729][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6134.072729][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6134.072729][ T253] ipv6_find_idev+0x102/0x170 [ 6134.072729][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6134.072729][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6134.072729][ T253] netlink_rcv_skb+0x130/0x360 [ 6134.072729][ T253] netlink_unicast+0x449/0x710 [ 6134.072729][ T253] netlink_sendmsg+0x723/0xbe0 [ 6134.072729][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6134.072729][ T253] ___sys_sendmsg+0xee/0x170 [ 6134.072729][ T253] __sys_sendmsg+0xcd/0x170 [ 6134.072729][ T253] do_syscall_64+0xc6/0x1e0 [ 6134.072729][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6134.072729][ T253] [ 6134.074818][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6134.074818][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6134.074818][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6134.074818][ T253] ipv6_find_idev+0x102/0x170 [ 6134.074818][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6134.074818][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6134.074818][ T253] netlink_rcv_skb+0x130/0x360 [ 6134.074818][ T253] netlink_unicast+0x449/0x710 [ 6134.074818][ T253] netlink_sendmsg+0x723/0xbe0 [ 6134.074818][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6134.074818][ T253] ___sys_sendmsg+0xee/0x170 [ 6134.074818][ T253] __sys_sendmsg+0xcd/0x170 [ 6134.074818][ T253] do_syscall_64+0xc6/0x1e0 [ 6134.074818][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6134.074818][ T253] [ 6144.314310][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6144.314812][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6144.314812][ T253] dst_init+0x84/0x4a0 [ 6144.314812][ T253] dst_alloc+0x97/0x150 [ 6144.314812][ T253] ip6_dst_alloc+0x23/0x90 [ 6144.314812][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6144.314812][ T253] ip6_pol_route+0x56f/0x840 [ 6144.314812][ T253] fib6_rule_lookup+0x334/0x630 [ 6144.314812][ T253] ip6_route_output_flags+0x259/0x480 [ 6144.314812][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6144.314812][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6144.314812][ T253] netlink_rcv_skb+0x130/0x360 [ 6144.314812][ T253] netlink_unicast+0x449/0x710 [ 6144.314812][ T253] netlink_sendmsg+0x723/0xbe0 [ 6144.314812][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6144.314812][ T253] ___sys_sendmsg+0xee/0x170 [ 6144.314812][ T253] __sys_sendmsg+0xcd/0x170 [ 6144.314812][ T253] do_syscall_64+0xc6/0x1e0 [ 6144.314812][ T253] [ 6144.317468][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6144.317468][ T253] netdev_get_by_index+0x5e/0x80 [ 6144.317468][ T253] fib6_nh_init+0x3d8/0x1580 [ 6144.317468][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6144.317468][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6144.317468][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6144.317468][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6144.317468][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6144.317468][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6144.317468][ T253] addrconf_dad_begin+0x310/0x670 [ 6144.317468][ T253] addrconf_dad_work+0x10b/0xab0 [ 6144.317468][ T253] process_one_work+0x84d/0x18a0 [ 6144.317468][ T253] worker_thread+0x587/0xd30 [ 6144.317468][ T253] kthread+0x28a/0x350 [ 6144.317468][ T253] ret_from_fork+0x31/0x70 [ 6144.317468][ T253] ret_from_fork_asm+0x1a/0x30 [ 6144.317468][ T253] [ 6144.320073][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6144.320073][ T253] netdev_get_by_index+0x5e/0x80 [ 6144.320073][ T253] fib6_nh_init+0x3d8/0x1580 [ 6144.320073][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6144.320073][ T253] ip6_route_add+0x1c/0x140 [ 6144.320073][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6144.320073][ T253] inet6_addr_add+0x4f8/0xa40 [ 6144.320073][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6144.320073][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6144.320073][ T253] netlink_rcv_skb+0x130/0x360 [ 6144.320073][ T253] netlink_unicast+0x449/0x710 [ 6144.320073][ T253] netlink_sendmsg+0x723/0xbe0 [ 6144.320073][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6144.320073][ T253] ___sys_sendmsg+0xee/0x170 [ 6144.320073][ T253] __sys_sendmsg+0xcd/0x170 [ 6144.320073][ T253] do_syscall_64+0xc6/0x1e0 [ 6144.320073][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6144.320073][ T253] [ 6144.322599][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6144.322599][ T253] netdev_get_by_index+0x5e/0x80 [ 6144.322599][ T253] fib6_nh_init+0x3d8/0x1580 [ 6144.322599][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6144.322599][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6144.322599][ T253] ipv6_add_addr+0x411/0x2000 [ 6144.322599][ T253] inet6_addr_add+0x30e/0xa40 [ 6144.322599][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6144.322599][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6144.322599][ T253] netlink_rcv_skb+0x130/0x360 [ 6144.322599][ T253] netlink_unicast+0x449/0x710 [ 6144.322599][ T253] netlink_sendmsg+0x723/0xbe0 [ 6144.322599][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6144.322599][ T253] ___sys_sendmsg+0xee/0x170 [ 6144.322599][ T253] __sys_sendmsg+0xcd/0x170 [ 6144.322599][ T253] do_syscall_64+0xc6/0x1e0 [ 6144.322599][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6144.322599][ T253] [ 6144.324844][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6144.324844][ T253] netdev_get_by_index+0x5e/0x80 [ 6144.324844][ T253] fib6_nh_init+0x3d8/0x1580 [ 6144.324844][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6144.324844][ T253] ip6_route_add+0x1c/0x140 [ 6144.324844][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6144.324844][ T253] addrconf_add_dev+0xe2/0x170 [ 6144.324844][ T253] inet6_addr_add+0x12f/0xa40 [ 6144.324844][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6144.324844][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6144.324844][ T253] netlink_rcv_skb+0x130/0x360 [ 6144.324844][ T253] netlink_unicast+0x449/0x710 [ 6144.324844][ T253] netlink_sendmsg+0x723/0xbe0 [ 6144.324844][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6144.324844][ T253] ___sys_sendmsg+0xee/0x170 [ 6144.324844][ T253] __sys_sendmsg+0xcd/0x170 [ 6144.324844][ T253] do_syscall_64+0xc6/0x1e0 [ 6144.324844][ T253] [ 6144.327052][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6144.327052][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6144.327052][ T253] ipv6_find_idev+0x102/0x170 [ 6144.327052][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6144.327052][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6144.327052][ T253] netlink_rcv_skb+0x130/0x360 [ 6144.327052][ T253] netlink_unicast+0x449/0x710 [ 6144.327052][ T253] netlink_sendmsg+0x723/0xbe0 [ 6144.327052][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6144.327052][ T253] ___sys_sendmsg+0xee/0x170 [ 6144.327052][ T253] __sys_sendmsg+0xcd/0x170 [ 6144.327052][ T253] do_syscall_64+0xc6/0x1e0 [ 6144.327052][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6144.327052][ T253] [ 6144.328787][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6144.328787][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6144.328787][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6144.328787][ T253] ipv6_find_idev+0x102/0x170 [ 6144.328787][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6144.328787][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6144.328787][ T253] netlink_rcv_skb+0x130/0x360 [ 6144.328787][ T253] netlink_unicast+0x449/0x710 [ 6144.328787][ T253] netlink_sendmsg+0x723/0xbe0 [ 6144.328787][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6144.328787][ T253] ___sys_sendmsg+0xee/0x170 [ 6144.328787][ T253] __sys_sendmsg+0xcd/0x170 [ 6144.328787][ T253] do_syscall_64+0xc6/0x1e0 [ 6144.328787][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6144.328787][ T253] [ 6154.394305][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6154.394790][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6154.394790][ T253] dst_init+0x84/0x4a0 [ 6154.394790][ T253] dst_alloc+0x97/0x150 [ 6154.394790][ T253] ip6_dst_alloc+0x23/0x90 [ 6154.394790][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6154.394790][ T253] ip6_pol_route+0x56f/0x840 [ 6154.394790][ T253] fib6_rule_lookup+0x334/0x630 [ 6154.394790][ T253] ip6_route_output_flags+0x259/0x480 [ 6154.394790][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6154.394790][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6154.394790][ T253] netlink_rcv_skb+0x130/0x360 [ 6154.394790][ T253] netlink_unicast+0x449/0x710 [ 6154.394790][ T253] netlink_sendmsg+0x723/0xbe0 [ 6154.394790][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6154.394790][ T253] ___sys_sendmsg+0xee/0x170 [ 6154.394790][ T253] __sys_sendmsg+0xcd/0x170 [ 6154.394790][ T253] do_syscall_64+0xc6/0x1e0 [ 6154.394790][ T253] [ 6154.396980][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6154.396980][ T253] netdev_get_by_index+0x5e/0x80 [ 6154.396980][ T253] fib6_nh_init+0x3d8/0x1580 [ 6154.396980][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6154.396980][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6154.396980][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6154.396980][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6154.396980][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6154.396980][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6154.396980][ T253] addrconf_dad_begin+0x310/0x670 [ 6154.396980][ T253] addrconf_dad_work+0x10b/0xab0 [ 6154.396980][ T253] process_one_work+0x84d/0x18a0 [ 6154.396980][ T253] worker_thread+0x587/0xd30 [ 6154.396980][ T253] kthread+0x28a/0x350 [ 6154.396980][ T253] ret_from_fork+0x31/0x70 [ 6154.396980][ T253] ret_from_fork_asm+0x1a/0x30 [ 6154.396980][ T253] [ 6154.399130][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6154.399130][ T253] netdev_get_by_index+0x5e/0x80 [ 6154.399130][ T253] fib6_nh_init+0x3d8/0x1580 [ 6154.399130][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6154.399130][ T253] ip6_route_add+0x1c/0x140 [ 6154.399130][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6154.399130][ T253] inet6_addr_add+0x4f8/0xa40 [ 6154.399130][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6154.399130][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6154.399130][ T253] netlink_rcv_skb+0x130/0x360 [ 6154.399130][ T253] netlink_unicast+0x449/0x710 [ 6154.399130][ T253] netlink_sendmsg+0x723/0xbe0 [ 6154.399130][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6154.399130][ T253] ___sys_sendmsg+0xee/0x170 [ 6154.399130][ T253] __sys_sendmsg+0xcd/0x170 [ 6154.399130][ T253] do_syscall_64+0xc6/0x1e0 [ 6154.399130][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6154.399130][ T253] [ 6154.401395][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6154.401395][ T253] netdev_get_by_index+0x5e/0x80 [ 6154.401395][ T253] fib6_nh_init+0x3d8/0x1580 [ 6154.401395][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6154.401395][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6154.401395][ T253] ipv6_add_addr+0x411/0x2000 [ 6154.401395][ T253] inet6_addr_add+0x30e/0xa40 [ 6154.401395][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6154.401395][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6154.401395][ T253] netlink_rcv_skb+0x130/0x360 [ 6154.401395][ T253] netlink_unicast+0x449/0x710 [ 6154.401395][ T253] netlink_sendmsg+0x723/0xbe0 [ 6154.401395][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6154.401395][ T253] ___sys_sendmsg+0xee/0x170 [ 6154.401395][ T253] __sys_sendmsg+0xcd/0x170 [ 6154.401395][ T253] do_syscall_64+0xc6/0x1e0 [ 6154.401395][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6154.401395][ T253] [ 6154.403641][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6154.403641][ T253] netdev_get_by_index+0x5e/0x80 [ 6154.403641][ T253] fib6_nh_init+0x3d8/0x1580 [ 6154.403641][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6154.403641][ T253] ip6_route_add+0x1c/0x140 [ 6154.403641][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6154.403641][ T253] addrconf_add_dev+0xe2/0x170 [ 6154.403641][ T253] inet6_addr_add+0x12f/0xa40 [ 6154.403641][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6154.403641][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6154.403641][ T253] netlink_rcv_skb+0x130/0x360 [ 6154.403641][ T253] netlink_unicast+0x449/0x710 [ 6154.403641][ T253] netlink_sendmsg+0x723/0xbe0 [ 6154.403641][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6154.403641][ T253] ___sys_sendmsg+0xee/0x170 [ 6154.403641][ T253] __sys_sendmsg+0xcd/0x170 [ 6154.403641][ T253] do_syscall_64+0xc6/0x1e0 [ 6154.403641][ T253] [ 6154.405848][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6154.405848][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6154.405848][ T253] ipv6_find_idev+0x102/0x170 [ 6154.405848][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6154.405848][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6154.405848][ T253] netlink_rcv_skb+0x130/0x360 [ 6154.405848][ T253] netlink_unicast+0x449/0x710 [ 6154.405848][ T253] netlink_sendmsg+0x723/0xbe0 [ 6154.405848][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6154.405848][ T253] ___sys_sendmsg+0xee/0x170 [ 6154.405848][ T253] __sys_sendmsg+0xcd/0x170 [ 6154.405848][ T253] do_syscall_64+0xc6/0x1e0 [ 6154.405848][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6154.405848][ T253] [ 6154.407574][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6154.407574][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6154.407574][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6154.407574][ T253] ipv6_find_idev+0x102/0x170 [ 6154.407574][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6154.407574][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6154.407574][ T253] netlink_rcv_skb+0x130/0x360 [ 6154.407574][ T253] netlink_unicast+0x449/0x710 [ 6154.407574][ T253] netlink_sendmsg+0x723/0xbe0 [ 6154.407574][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6154.407574][ T253] ___sys_sendmsg+0xee/0x170 [ 6154.407574][ T253] __sys_sendmsg+0xcd/0x170 [ 6154.407574][ T253] do_syscall_64+0xc6/0x1e0 [ 6154.407574][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6154.407574][ T253] [ 6164.650333][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6164.650805][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6164.650805][ T253] dst_init+0x84/0x4a0 [ 6164.650805][ T253] dst_alloc+0x97/0x150 [ 6164.650805][ T253] ip6_dst_alloc+0x23/0x90 [ 6164.650805][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6164.650805][ T253] ip6_pol_route+0x56f/0x840 [ 6164.650805][ T253] fib6_rule_lookup+0x334/0x630 [ 6164.650805][ T253] ip6_route_output_flags+0x259/0x480 [ 6164.650805][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6164.650805][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6164.650805][ T253] netlink_rcv_skb+0x130/0x360 [ 6164.650805][ T253] netlink_unicast+0x449/0x710 [ 6164.650805][ T253] netlink_sendmsg+0x723/0xbe0 [ 6164.650805][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6164.650805][ T253] ___sys_sendmsg+0xee/0x170 [ 6164.650805][ T253] __sys_sendmsg+0xcd/0x170 [ 6164.650805][ T253] do_syscall_64+0xc6/0x1e0 [ 6164.650805][ T253] [ 6164.653024][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6164.653024][ T253] netdev_get_by_index+0x5e/0x80 [ 6164.653024][ T253] fib6_nh_init+0x3d8/0x1580 [ 6164.653024][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6164.653024][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6164.653024][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6164.653024][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6164.653024][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6164.653024][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6164.653024][ T253] addrconf_dad_begin+0x310/0x670 [ 6164.653024][ T253] addrconf_dad_work+0x10b/0xab0 [ 6164.653024][ T253] process_one_work+0x84d/0x18a0 [ 6164.653024][ T253] worker_thread+0x587/0xd30 [ 6164.653024][ T253] kthread+0x28a/0x350 [ 6164.653024][ T253] ret_from_fork+0x31/0x70 [ 6164.653024][ T253] ret_from_fork_asm+0x1a/0x30 [ 6164.653024][ T253] [ 6164.655179][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6164.655179][ T253] netdev_get_by_index+0x5e/0x80 [ 6164.655179][ T253] fib6_nh_init+0x3d8/0x1580 [ 6164.655179][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6164.655179][ T253] ip6_route_add+0x1c/0x140 [ 6164.655179][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6164.655179][ T253] inet6_addr_add+0x4f8/0xa40 [ 6164.655179][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6164.655179][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6164.655179][ T253] netlink_rcv_skb+0x130/0x360 [ 6164.655179][ T253] netlink_unicast+0x449/0x710 [ 6164.655179][ T253] netlink_sendmsg+0x723/0xbe0 [ 6164.655179][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6164.655179][ T253] ___sys_sendmsg+0xee/0x170 [ 6164.655179][ T253] __sys_sendmsg+0xcd/0x170 [ 6164.655179][ T253] do_syscall_64+0xc6/0x1e0 [ 6164.655179][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6164.655179][ T253] [ 6164.657416][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6164.657416][ T253] netdev_get_by_index+0x5e/0x80 [ 6164.657416][ T253] fib6_nh_init+0x3d8/0x1580 [ 6164.657416][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6164.657416][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6164.657416][ T253] ipv6_add_addr+0x411/0x2000 [ 6164.657416][ T253] inet6_addr_add+0x30e/0xa40 [ 6164.657416][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6164.657416][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6164.657416][ T253] netlink_rcv_skb+0x130/0x360 [ 6164.657416][ T253] netlink_unicast+0x449/0x710 [ 6164.657416][ T253] netlink_sendmsg+0x723/0xbe0 [ 6164.657416][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6164.657416][ T253] ___sys_sendmsg+0xee/0x170 [ 6164.657416][ T253] __sys_sendmsg+0xcd/0x170 [ 6164.657416][ T253] do_syscall_64+0xc6/0x1e0 [ 6164.657416][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6164.657416][ T253] [ 6164.659649][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6164.659649][ T253] netdev_get_by_index+0x5e/0x80 [ 6164.659649][ T253] fib6_nh_init+0x3d8/0x1580 [ 6164.659649][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6164.659649][ T253] ip6_route_add+0x1c/0x140 [ 6164.659649][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6164.659649][ T253] addrconf_add_dev+0xe2/0x170 [ 6164.659649][ T253] inet6_addr_add+0x12f/0xa40 [ 6164.659649][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6164.659649][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6164.659649][ T253] netlink_rcv_skb+0x130/0x360 [ 6164.659649][ T253] netlink_unicast+0x449/0x710 [ 6164.659649][ T253] netlink_sendmsg+0x723/0xbe0 [ 6164.659649][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6164.659649][ T253] ___sys_sendmsg+0xee/0x170 [ 6164.659649][ T253] __sys_sendmsg+0xcd/0x170 [ 6164.659649][ T253] do_syscall_64+0xc6/0x1e0 [ 6164.659649][ T253] [ 6164.661856][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6164.661856][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6164.661856][ T253] ipv6_find_idev+0x102/0x170 [ 6164.661856][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6164.661856][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6164.661856][ T253] netlink_rcv_skb+0x130/0x360 [ 6164.661856][ T253] netlink_unicast+0x449/0x710 [ 6164.661856][ T253] netlink_sendmsg+0x723/0xbe0 [ 6164.661856][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6164.661856][ T253] ___sys_sendmsg+0xee/0x170 [ 6164.661856][ T253] __sys_sendmsg+0xcd/0x170 [ 6164.661856][ T253] do_syscall_64+0xc6/0x1e0 [ 6164.661856][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6164.661856][ T253] [ 6164.663703][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6164.663703][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6164.663703][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6164.663703][ T253] ipv6_find_idev+0x102/0x170 [ 6164.663703][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6164.663703][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6164.663703][ T253] netlink_rcv_skb+0x130/0x360 [ 6164.663703][ T253] netlink_unicast+0x449/0x710 [ 6164.663703][ T253] netlink_sendmsg+0x723/0xbe0 [ 6164.663703][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6164.663703][ T253] ___sys_sendmsg+0xee/0x170 [ 6164.663703][ T253] __sys_sendmsg+0xcd/0x170 [ 6164.663703][ T253] do_syscall_64+0xc6/0x1e0 [ 6164.663703][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6164.663703][ T253] [ 6174.906336][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6174.906824][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6174.906824][ T253] dst_init+0x84/0x4a0 [ 6174.906824][ T253] dst_alloc+0x97/0x150 [ 6174.906824][ T253] ip6_dst_alloc+0x23/0x90 [ 6174.906824][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6174.906824][ T253] ip6_pol_route+0x56f/0x840 [ 6174.906824][ T253] fib6_rule_lookup+0x334/0x630 [ 6174.906824][ T253] ip6_route_output_flags+0x259/0x480 [ 6174.906824][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6174.906824][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6174.906824][ T253] netlink_rcv_skb+0x130/0x360 [ 6174.906824][ T253] netlink_unicast+0x449/0x710 [ 6174.906824][ T253] netlink_sendmsg+0x723/0xbe0 [ 6174.906824][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6174.906824][ T253] ___sys_sendmsg+0xee/0x170 [ 6174.906824][ T253] __sys_sendmsg+0xcd/0x170 [ 6174.906824][ T253] do_syscall_64+0xc6/0x1e0 [ 6174.906824][ T253] [ 6174.909035][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6174.909035][ T253] netdev_get_by_index+0x5e/0x80 [ 6174.909035][ T253] fib6_nh_init+0x3d8/0x1580 [ 6174.909035][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6174.909035][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6174.909035][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6174.909035][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6174.909035][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6174.909035][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6174.909035][ T253] addrconf_dad_begin+0x310/0x670 [ 6174.909035][ T253] addrconf_dad_work+0x10b/0xab0 [ 6174.909035][ T253] process_one_work+0x84d/0x18a0 [ 6174.909035][ T253] worker_thread+0x587/0xd30 [ 6174.909035][ T253] kthread+0x28a/0x350 [ 6174.909035][ T253] ret_from_fork+0x31/0x70 [ 6174.909035][ T253] ret_from_fork_asm+0x1a/0x30 [ 6174.909035][ T253] [ 6174.911196][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6174.911196][ T253] netdev_get_by_index+0x5e/0x80 [ 6174.911196][ T253] fib6_nh_init+0x3d8/0x1580 [ 6174.911196][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6174.911196][ T253] ip6_route_add+0x1c/0x140 [ 6174.911196][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6174.911196][ T253] inet6_addr_add+0x4f8/0xa40 [ 6174.911196][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6174.911196][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6174.911196][ T253] netlink_rcv_skb+0x130/0x360 [ 6174.911196][ T253] netlink_unicast+0x449/0x710 [ 6174.911196][ T253] netlink_sendmsg+0x723/0xbe0 [ 6174.911196][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6174.911196][ T253] ___sys_sendmsg+0xee/0x170 [ 6174.911196][ T253] __sys_sendmsg+0xcd/0x170 [ 6174.911196][ T253] do_syscall_64+0xc6/0x1e0 [ 6174.911196][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6174.911196][ T253] [ 6174.913441][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6174.913441][ T253] netdev_get_by_index+0x5e/0x80 [ 6174.913441][ T253] fib6_nh_init+0x3d8/0x1580 [ 6174.913441][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6174.913441][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6174.913441][ T253] ipv6_add_addr+0x411/0x2000 [ 6174.913441][ T253] inet6_addr_add+0x30e/0xa40 [ 6174.913441][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6174.913441][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6174.913441][ T253] netlink_rcv_skb+0x130/0x360 [ 6174.913441][ T253] netlink_unicast+0x449/0x710 [ 6174.913441][ T253] netlink_sendmsg+0x723/0xbe0 [ 6174.913441][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6174.913441][ T253] ___sys_sendmsg+0xee/0x170 [ 6174.913441][ T253] __sys_sendmsg+0xcd/0x170 [ 6174.913441][ T253] do_syscall_64+0xc6/0x1e0 [ 6174.913441][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6174.913441][ T253] [ 6174.915694][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6174.915694][ T253] netdev_get_by_index+0x5e/0x80 [ 6174.915694][ T253] fib6_nh_init+0x3d8/0x1580 [ 6174.915694][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6174.915694][ T253] ip6_route_add+0x1c/0x140 [ 6174.915694][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6174.915694][ T253] addrconf_add_dev+0xe2/0x170 [ 6174.915694][ T253] inet6_addr_add+0x12f/0xa40 [ 6174.915694][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6174.915694][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6174.915694][ T253] netlink_rcv_skb+0x130/0x360 [ 6174.915694][ T253] netlink_unicast+0x449/0x710 [ 6174.915694][ T253] netlink_sendmsg+0x723/0xbe0 [ 6174.915694][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6174.915694][ T253] ___sys_sendmsg+0xee/0x170 [ 6174.915694][ T253] __sys_sendmsg+0xcd/0x170 [ 6174.915694][ T253] do_syscall_64+0xc6/0x1e0 [ 6174.915694][ T253] [ 6174.917954][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6174.917954][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6174.917954][ T253] ipv6_find_idev+0x102/0x170 [ 6174.917954][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6174.917954][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6174.917954][ T253] netlink_rcv_skb+0x130/0x360 [ 6174.917954][ T253] netlink_unicast+0x449/0x710 [ 6174.917954][ T253] netlink_sendmsg+0x723/0xbe0 [ 6174.917954][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6174.917954][ T253] ___sys_sendmsg+0xee/0x170 [ 6174.917954][ T253] __sys_sendmsg+0xcd/0x170 [ 6174.917954][ T253] do_syscall_64+0xc6/0x1e0 [ 6174.917954][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6174.917954][ T253] [ 6174.919681][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6174.919681][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6174.919681][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6174.919681][ T253] ipv6_find_idev+0x102/0x170 [ 6174.919681][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6174.919681][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6174.919681][ T253] netlink_rcv_skb+0x130/0x360 [ 6174.919681][ T253] netlink_unicast+0x449/0x710 [ 6174.919681][ T253] netlink_sendmsg+0x723/0xbe0 [ 6174.919681][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6174.919681][ T253] ___sys_sendmsg+0xee/0x170 [ 6174.919681][ T253] __sys_sendmsg+0xcd/0x170 [ 6174.919681][ T253] do_syscall_64+0xc6/0x1e0 [ 6174.919681][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6174.919681][ T253] [ 6185.162305][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6185.162790][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6185.162790][ T253] dst_init+0x84/0x4a0 [ 6185.162790][ T253] dst_alloc+0x97/0x150 [ 6185.162790][ T253] ip6_dst_alloc+0x23/0x90 [ 6185.162790][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6185.162790][ T253] ip6_pol_route+0x56f/0x840 [ 6185.162790][ T253] fib6_rule_lookup+0x334/0x630 [ 6185.162790][ T253] ip6_route_output_flags+0x259/0x480 [ 6185.162790][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6185.162790][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6185.162790][ T253] netlink_rcv_skb+0x130/0x360 [ 6185.162790][ T253] netlink_unicast+0x449/0x710 [ 6185.162790][ T253] netlink_sendmsg+0x723/0xbe0 [ 6185.162790][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6185.162790][ T253] ___sys_sendmsg+0xee/0x170 [ 6185.162790][ T253] __sys_sendmsg+0xcd/0x170 [ 6185.162790][ T253] do_syscall_64+0xc6/0x1e0 [ 6185.162790][ T253] [ 6185.164991][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6185.164991][ T253] netdev_get_by_index+0x5e/0x80 [ 6185.164991][ T253] fib6_nh_init+0x3d8/0x1580 [ 6185.164991][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6185.164991][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6185.164991][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6185.164991][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6185.164991][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6185.164991][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6185.164991][ T253] addrconf_dad_begin+0x310/0x670 [ 6185.164991][ T253] addrconf_dad_work+0x10b/0xab0 [ 6185.164991][ T253] process_one_work+0x84d/0x18a0 [ 6185.164991][ T253] worker_thread+0x587/0xd30 [ 6185.164991][ T253] kthread+0x28a/0x350 [ 6185.164991][ T253] ret_from_fork+0x31/0x70 [ 6185.164991][ T253] ret_from_fork_asm+0x1a/0x30 [ 6185.164991][ T253] [ 6185.167139][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6185.167139][ T253] netdev_get_by_index+0x5e/0x80 [ 6185.167139][ T253] fib6_nh_init+0x3d8/0x1580 [ 6185.167139][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6185.167139][ T253] ip6_route_add+0x1c/0x140 [ 6185.167139][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6185.167139][ T253] inet6_addr_add+0x4f8/0xa40 [ 6185.167139][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6185.167139][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6185.167139][ T253] netlink_rcv_skb+0x130/0x360 [ 6185.167139][ T253] netlink_unicast+0x449/0x710 [ 6185.167139][ T253] netlink_sendmsg+0x723/0xbe0 [ 6185.167139][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6185.167139][ T253] ___sys_sendmsg+0xee/0x170 [ 6185.167139][ T253] __sys_sendmsg+0xcd/0x170 [ 6185.167139][ T253] do_syscall_64+0xc6/0x1e0 [ 6185.167139][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6185.167139][ T253] [ 6185.169378][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6185.169378][ T253] netdev_get_by_index+0x5e/0x80 [ 6185.169378][ T253] fib6_nh_init+0x3d8/0x1580 [ 6185.169378][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6185.169378][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6185.169378][ T253] ipv6_add_addr+0x411/0x2000 [ 6185.169378][ T253] inet6_addr_add+0x30e/0xa40 [ 6185.169378][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6185.169378][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6185.169378][ T253] netlink_rcv_skb+0x130/0x360 [ 6185.169378][ T253] netlink_unicast+0x449/0x710 [ 6185.169378][ T253] netlink_sendmsg+0x723/0xbe0 [ 6185.169378][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6185.169378][ T253] ___sys_sendmsg+0xee/0x170 [ 6185.169378][ T253] __sys_sendmsg+0xcd/0x170 [ 6185.169378][ T253] do_syscall_64+0xc6/0x1e0 [ 6185.169378][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6185.169378][ T253] [ 6185.171648][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6185.171648][ T253] netdev_get_by_index+0x5e/0x80 [ 6185.171648][ T253] fib6_nh_init+0x3d8/0x1580 [ 6185.171648][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6185.171648][ T253] ip6_route_add+0x1c/0x140 [ 6185.171648][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6185.171648][ T253] addrconf_add_dev+0xe2/0x170 [ 6185.171648][ T253] inet6_addr_add+0x12f/0xa40 [ 6185.171648][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6185.171648][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6185.171648][ T253] netlink_rcv_skb+0x130/0x360 [ 6185.171648][ T253] netlink_unicast+0x449/0x710 [ 6185.171648][ T253] netlink_sendmsg+0x723/0xbe0 [ 6185.171648][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6185.171648][ T253] ___sys_sendmsg+0xee/0x170 [ 6185.171648][ T253] __sys_sendmsg+0xcd/0x170 [ 6185.171648][ T253] do_syscall_64+0xc6/0x1e0 [ 6185.171648][ T253] [ 6185.173850][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6185.173850][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6185.173850][ T253] ipv6_find_idev+0x102/0x170 [ 6185.173850][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6185.173850][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6185.173850][ T253] netlink_rcv_skb+0x130/0x360 [ 6185.173850][ T253] netlink_unicast+0x449/0x710 [ 6185.173850][ T253] netlink_sendmsg+0x723/0xbe0 [ 6185.173850][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6185.173850][ T253] ___sys_sendmsg+0xee/0x170 [ 6185.173850][ T253] __sys_sendmsg+0xcd/0x170 [ 6185.173850][ T253] do_syscall_64+0xc6/0x1e0 [ 6185.173850][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6185.173850][ T253] [ 6185.175578][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6185.175578][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6185.175578][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6185.175578][ T253] ipv6_find_idev+0x102/0x170 [ 6185.175578][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6185.175578][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6185.175578][ T253] netlink_rcv_skb+0x130/0x360 [ 6185.175578][ T253] netlink_unicast+0x449/0x710 [ 6185.175578][ T253] netlink_sendmsg+0x723/0xbe0 [ 6185.175578][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6185.175578][ T253] ___sys_sendmsg+0xee/0x170 [ 6185.175578][ T253] __sys_sendmsg+0xcd/0x170 [ 6185.175578][ T253] do_syscall_64+0xc6/0x1e0 [ 6185.175578][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6185.175578][ T253] [ 6195.242337][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6195.242831][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6195.242831][ T253] dst_init+0x84/0x4a0 [ 6195.242831][ T253] dst_alloc+0x97/0x150 [ 6195.242831][ T253] ip6_dst_alloc+0x23/0x90 [ 6195.242831][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6195.242831][ T253] ip6_pol_route+0x56f/0x840 [ 6195.242831][ T253] fib6_rule_lookup+0x334/0x630 [ 6195.242831][ T253] ip6_route_output_flags+0x259/0x480 [ 6195.242831][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6195.242831][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6195.242831][ T253] netlink_rcv_skb+0x130/0x360 [ 6195.242831][ T253] netlink_unicast+0x449/0x710 [ 6195.242831][ T253] netlink_sendmsg+0x723/0xbe0 [ 6195.242831][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6195.242831][ T253] ___sys_sendmsg+0xee/0x170 [ 6195.242831][ T253] __sys_sendmsg+0xcd/0x170 [ 6195.242831][ T253] do_syscall_64+0xc6/0x1e0 [ 6195.242831][ T253] [ 6195.245024][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6195.245024][ T253] netdev_get_by_index+0x5e/0x80 [ 6195.245024][ T253] fib6_nh_init+0x3d8/0x1580 [ 6195.245024][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6195.245024][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6195.245024][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6195.245024][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6195.245024][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6195.245024][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6195.245024][ T253] addrconf_dad_begin+0x310/0x670 [ 6195.245024][ T253] addrconf_dad_work+0x10b/0xab0 [ 6195.245024][ T253] process_one_work+0x84d/0x18a0 [ 6195.245024][ T253] worker_thread+0x587/0xd30 [ 6195.245024][ T253] kthread+0x28a/0x350 [ 6195.245024][ T253] ret_from_fork+0x31/0x70 [ 6195.245024][ T253] ret_from_fork_asm+0x1a/0x30 [ 6195.245024][ T253] [ 6195.247164][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6195.247164][ T253] netdev_get_by_index+0x5e/0x80 [ 6195.247164][ T253] fib6_nh_init+0x3d8/0x1580 [ 6195.247164][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6195.247164][ T253] ip6_route_add+0x1c/0x140 [ 6195.247164][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6195.247164][ T253] inet6_addr_add+0x4f8/0xa40 [ 6195.247164][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6195.247164][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6195.247164][ T253] netlink_rcv_skb+0x130/0x360 [ 6195.247164][ T253] netlink_unicast+0x449/0x710 [ 6195.247164][ T253] netlink_sendmsg+0x723/0xbe0 [ 6195.247164][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6195.247164][ T253] ___sys_sendmsg+0xee/0x170 [ 6195.247164][ T253] __sys_sendmsg+0xcd/0x170 [ 6195.247164][ T253] do_syscall_64+0xc6/0x1e0 [ 6195.247164][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6195.247164][ T253] [ 6195.249406][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6195.249406][ T253] netdev_get_by_index+0x5e/0x80 [ 6195.249406][ T253] fib6_nh_init+0x3d8/0x1580 [ 6195.249406][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6195.249406][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6195.249406][ T253] ipv6_add_addr+0x411/0x2000 [ 6195.249406][ T253] inet6_addr_add+0x30e/0xa40 [ 6195.249406][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6195.249406][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6195.249406][ T253] netlink_rcv_skb+0x130/0x360 [ 6195.249406][ T253] netlink_unicast+0x449/0x710 [ 6195.249406][ T253] netlink_sendmsg+0x723/0xbe0 [ 6195.249406][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6195.249406][ T253] ___sys_sendmsg+0xee/0x170 [ 6195.249406][ T253] __sys_sendmsg+0xcd/0x170 [ 6195.249406][ T253] do_syscall_64+0xc6/0x1e0 [ 6195.249406][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6195.249406][ T253] [ 6195.251665][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6195.251665][ T253] netdev_get_by_index+0x5e/0x80 [ 6195.251665][ T253] fib6_nh_init+0x3d8/0x1580 [ 6195.251665][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6195.251665][ T253] ip6_route_add+0x1c/0x140 [ 6195.251665][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6195.251665][ T253] addrconf_add_dev+0xe2/0x170 [ 6195.251665][ T253] inet6_addr_add+0x12f/0xa40 [ 6195.251665][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6195.251665][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6195.251665][ T253] netlink_rcv_skb+0x130/0x360 [ 6195.251665][ T253] netlink_unicast+0x449/0x710 [ 6195.251665][ T253] netlink_sendmsg+0x723/0xbe0 [ 6195.251665][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6195.251665][ T253] ___sys_sendmsg+0xee/0x170 [ 6195.251665][ T253] __sys_sendmsg+0xcd/0x170 [ 6195.251665][ T253] do_syscall_64+0xc6/0x1e0 [ 6195.251665][ T253] [ 6195.253880][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6195.253880][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6195.253880][ T253] ipv6_find_idev+0x102/0x170 [ 6195.253880][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6195.253880][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6195.253880][ T253] netlink_rcv_skb+0x130/0x360 [ 6195.253880][ T253] netlink_unicast+0x449/0x710 [ 6195.253880][ T253] netlink_sendmsg+0x723/0xbe0 [ 6195.253880][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6195.253880][ T253] ___sys_sendmsg+0xee/0x170 [ 6195.253880][ T253] __sys_sendmsg+0xcd/0x170 [ 6195.253880][ T253] do_syscall_64+0xc6/0x1e0 [ 6195.253880][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6195.253880][ T253] [ 6195.255608][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6195.255608][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6195.255608][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6195.255608][ T253] ipv6_find_idev+0x102/0x170 [ 6195.255608][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6195.255608][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6195.255608][ T253] netlink_rcv_skb+0x130/0x360 [ 6195.255608][ T253] netlink_unicast+0x449/0x710 [ 6195.255608][ T253] netlink_sendmsg+0x723/0xbe0 [ 6195.255608][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6195.255608][ T253] ___sys_sendmsg+0xee/0x170 [ 6195.255608][ T253] __sys_sendmsg+0xcd/0x170 [ 6195.255608][ T253] do_syscall_64+0xc6/0x1e0 [ 6195.255608][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6195.255608][ T253] [ 6205.498336][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6205.498850][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6205.498850][ T253] dst_init+0x84/0x4a0 [ 6205.498850][ T253] dst_alloc+0x97/0x150 [ 6205.498850][ T253] ip6_dst_alloc+0x23/0x90 [ 6205.498850][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6205.498850][ T253] ip6_pol_route+0x56f/0x840 [ 6205.498850][ T253] fib6_rule_lookup+0x334/0x630 [ 6205.498850][ T253] ip6_route_output_flags+0x259/0x480 [ 6205.498850][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6205.498850][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6205.498850][ T253] netlink_rcv_skb+0x130/0x360 [ 6205.498850][ T253] netlink_unicast+0x449/0x710 [ 6205.498850][ T253] netlink_sendmsg+0x723/0xbe0 [ 6205.498850][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6205.498850][ T253] ___sys_sendmsg+0xee/0x170 [ 6205.498850][ T253] __sys_sendmsg+0xcd/0x170 [ 6205.498850][ T253] do_syscall_64+0xc6/0x1e0 [ 6205.498850][ T253] [ 6205.501092][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6205.501092][ T253] netdev_get_by_index+0x5e/0x80 [ 6205.501092][ T253] fib6_nh_init+0x3d8/0x1580 [ 6205.501092][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6205.501092][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6205.501092][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6205.501092][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6205.501092][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6205.501092][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6205.501092][ T253] addrconf_dad_begin+0x310/0x670 [ 6205.501092][ T253] addrconf_dad_work+0x10b/0xab0 [ 6205.501092][ T253] process_one_work+0x84d/0x18a0 [ 6205.501092][ T253] worker_thread+0x587/0xd30 [ 6205.501092][ T253] kthread+0x28a/0x350 [ 6205.501092][ T253] ret_from_fork+0x31/0x70 [ 6205.501092][ T253] ret_from_fork_asm+0x1a/0x30 [ 6205.501092][ T253] [ 6205.503276][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6205.503276][ T253] netdev_get_by_index+0x5e/0x80 [ 6205.503276][ T253] fib6_nh_init+0x3d8/0x1580 [ 6205.503276][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6205.503276][ T253] ip6_route_add+0x1c/0x140 [ 6205.503276][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6205.503276][ T253] inet6_addr_add+0x4f8/0xa40 [ 6205.503276][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6205.503276][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6205.503276][ T253] netlink_rcv_skb+0x130/0x360 [ 6205.503276][ T253] netlink_unicast+0x449/0x710 [ 6205.503276][ T253] netlink_sendmsg+0x723/0xbe0 [ 6205.503276][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6205.503276][ T253] ___sys_sendmsg+0xee/0x170 [ 6205.503276][ T253] __sys_sendmsg+0xcd/0x170 [ 6205.503276][ T253] do_syscall_64+0xc6/0x1e0 [ 6205.503276][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6205.503276][ T253] [ 6205.505553][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6205.505553][ T253] netdev_get_by_index+0x5e/0x80 [ 6205.505553][ T253] fib6_nh_init+0x3d8/0x1580 [ 6205.505553][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6205.505553][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6205.505553][ T253] ipv6_add_addr+0x411/0x2000 [ 6205.505553][ T253] inet6_addr_add+0x30e/0xa40 [ 6205.505553][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6205.505553][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6205.505553][ T253] netlink_rcv_skb+0x130/0x360 [ 6205.505553][ T253] netlink_unicast+0x449/0x710 [ 6205.505553][ T253] netlink_sendmsg+0x723/0xbe0 [ 6205.505553][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6205.505553][ T253] ___sys_sendmsg+0xee/0x170 [ 6205.505553][ T253] __sys_sendmsg+0xcd/0x170 [ 6205.505553][ T253] do_syscall_64+0xc6/0x1e0 [ 6205.505553][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6205.505553][ T253] [ 6205.507821][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6205.507821][ T253] netdev_get_by_index+0x5e/0x80 [ 6205.507821][ T253] fib6_nh_init+0x3d8/0x1580 [ 6205.507821][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6205.507821][ T253] ip6_route_add+0x1c/0x140 [ 6205.507821][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6205.507821][ T253] addrconf_add_dev+0xe2/0x170 [ 6205.507821][ T253] inet6_addr_add+0x12f/0xa40 [ 6205.507821][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6205.507821][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6205.507821][ T253] netlink_rcv_skb+0x130/0x360 [ 6205.507821][ T253] netlink_unicast+0x449/0x710 [ 6205.507821][ T253] netlink_sendmsg+0x723/0xbe0 [ 6205.507821][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6205.507821][ T253] ___sys_sendmsg+0xee/0x170 [ 6205.507821][ T253] __sys_sendmsg+0xcd/0x170 [ 6205.507821][ T253] do_syscall_64+0xc6/0x1e0 [ 6205.507821][ T253] [ 6205.510050][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6205.510050][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6205.510050][ T253] ipv6_find_idev+0x102/0x170 [ 6205.510050][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6205.510050][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6205.510050][ T253] netlink_rcv_skb+0x130/0x360 [ 6205.510050][ T253] netlink_unicast+0x449/0x710 [ 6205.510050][ T253] netlink_sendmsg+0x723/0xbe0 [ 6205.510050][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6205.510050][ T253] ___sys_sendmsg+0xee/0x170 [ 6205.510050][ T253] __sys_sendmsg+0xcd/0x170 [ 6205.510050][ T253] do_syscall_64+0xc6/0x1e0 [ 6205.510050][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6205.510050][ T253] [ 6205.511806][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6205.511806][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6205.511806][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6205.511806][ T253] ipv6_find_idev+0x102/0x170 [ 6205.511806][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6205.511806][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6205.511806][ T253] netlink_rcv_skb+0x130/0x360 [ 6205.511806][ T253] netlink_unicast+0x449/0x710 [ 6205.511806][ T253] netlink_sendmsg+0x723/0xbe0 [ 6205.511806][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6205.511806][ T253] ___sys_sendmsg+0xee/0x170 [ 6205.511806][ T253] __sys_sendmsg+0xcd/0x170 [ 6205.511806][ T253] do_syscall_64+0xc6/0x1e0 [ 6205.511806][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6205.511806][ T253] [ 6215.754328][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6215.754825][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6215.754825][ T253] dst_init+0x84/0x4a0 [ 6215.754825][ T253] dst_alloc+0x97/0x150 [ 6215.754825][ T253] ip6_dst_alloc+0x23/0x90 [ 6215.754825][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6215.754825][ T253] ip6_pol_route+0x56f/0x840 [ 6215.754825][ T253] fib6_rule_lookup+0x334/0x630 [ 6215.754825][ T253] ip6_route_output_flags+0x259/0x480 [ 6215.754825][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6215.754825][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6215.754825][ T253] netlink_rcv_skb+0x130/0x360 [ 6215.754825][ T253] netlink_unicast+0x449/0x710 [ 6215.754825][ T253] netlink_sendmsg+0x723/0xbe0 [ 6215.754825][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6215.754825][ T253] ___sys_sendmsg+0xee/0x170 [ 6215.754825][ T253] __sys_sendmsg+0xcd/0x170 [ 6215.754825][ T253] do_syscall_64+0xc6/0x1e0 [ 6215.754825][ T253] [ 6215.757054][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6215.757054][ T253] netdev_get_by_index+0x5e/0x80 [ 6215.757054][ T253] fib6_nh_init+0x3d8/0x1580 [ 6215.757054][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6215.757054][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6215.757054][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6215.757054][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6215.757054][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6215.757054][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6215.757054][ T253] addrconf_dad_begin+0x310/0x670 [ 6215.757054][ T253] addrconf_dad_work+0x10b/0xab0 [ 6215.757054][ T253] process_one_work+0x84d/0x18a0 [ 6215.757054][ T253] worker_thread+0x587/0xd30 [ 6215.757054][ T253] kthread+0x28a/0x350 [ 6215.757054][ T253] ret_from_fork+0x31/0x70 [ 6215.757054][ T253] ret_from_fork_asm+0x1a/0x30 [ 6215.757054][ T253] [ 6215.759227][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6215.759227][ T253] netdev_get_by_index+0x5e/0x80 [ 6215.759227][ T253] fib6_nh_init+0x3d8/0x1580 [ 6215.759227][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6215.759227][ T253] ip6_route_add+0x1c/0x140 [ 6215.759227][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6215.759227][ T253] inet6_addr_add+0x4f8/0xa40 [ 6215.759227][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6215.759227][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6215.759227][ T253] netlink_rcv_skb+0x130/0x360 [ 6215.759227][ T253] netlink_unicast+0x449/0x710 [ 6215.759227][ T253] netlink_sendmsg+0x723/0xbe0 [ 6215.759227][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6215.759227][ T253] ___sys_sendmsg+0xee/0x170 [ 6215.759227][ T253] __sys_sendmsg+0xcd/0x170 [ 6215.759227][ T253] do_syscall_64+0xc6/0x1e0 [ 6215.759227][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6215.759227][ T253] [ 6215.761508][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6215.761508][ T253] netdev_get_by_index+0x5e/0x80 [ 6215.761508][ T253] fib6_nh_init+0x3d8/0x1580 [ 6215.761508][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6215.761508][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6215.761508][ T253] ipv6_add_addr+0x411/0x2000 [ 6215.761508][ T253] inet6_addr_add+0x30e/0xa40 [ 6215.761508][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6215.761508][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6215.761508][ T253] netlink_rcv_skb+0x130/0x360 [ 6215.761508][ T253] netlink_unicast+0x449/0x710 [ 6215.761508][ T253] netlink_sendmsg+0x723/0xbe0 [ 6215.761508][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6215.761508][ T253] ___sys_sendmsg+0xee/0x170 [ 6215.761508][ T253] __sys_sendmsg+0xcd/0x170 [ 6215.761508][ T253] do_syscall_64+0xc6/0x1e0 [ 6215.761508][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6215.761508][ T253] [ 6215.763782][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6215.763782][ T253] netdev_get_by_index+0x5e/0x80 [ 6215.763782][ T253] fib6_nh_init+0x3d8/0x1580 [ 6215.763782][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6215.763782][ T253] ip6_route_add+0x1c/0x140 [ 6215.763782][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6215.763782][ T253] addrconf_add_dev+0xe2/0x170 [ 6215.763782][ T253] inet6_addr_add+0x12f/0xa40 [ 6215.763782][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6215.763782][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6215.763782][ T253] netlink_rcv_skb+0x130/0x360 [ 6215.763782][ T253] netlink_unicast+0x449/0x710 [ 6215.763782][ T253] netlink_sendmsg+0x723/0xbe0 [ 6215.763782][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6215.763782][ T253] ___sys_sendmsg+0xee/0x170 [ 6215.763782][ T253] __sys_sendmsg+0xcd/0x170 [ 6215.763782][ T253] do_syscall_64+0xc6/0x1e0 [ 6215.763782][ T253] [ 6215.766006][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6215.766006][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6215.766006][ T253] ipv6_find_idev+0x102/0x170 [ 6215.766006][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6215.766006][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6215.766006][ T253] netlink_rcv_skb+0x130/0x360 [ 6215.766006][ T253] netlink_unicast+0x449/0x710 [ 6215.766006][ T253] netlink_sendmsg+0x723/0xbe0 [ 6215.766006][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6215.766006][ T253] ___sys_sendmsg+0xee/0x170 [ 6215.766006][ T253] __sys_sendmsg+0xcd/0x170 [ 6215.766006][ T253] do_syscall_64+0xc6/0x1e0 [ 6215.766006][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6215.766006][ T253] [ 6215.767754][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6215.767754][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6215.767754][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6215.767754][ T253] ipv6_find_idev+0x102/0x170 [ 6215.767754][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6215.767754][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6215.767754][ T253] netlink_rcv_skb+0x130/0x360 [ 6215.767754][ T253] netlink_unicast+0x449/0x710 [ 6215.767754][ T253] netlink_sendmsg+0x723/0xbe0 [ 6215.767754][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6215.767754][ T253] ___sys_sendmsg+0xee/0x170 [ 6215.767754][ T253] __sys_sendmsg+0xcd/0x170 [ 6215.767754][ T253] do_syscall_64+0xc6/0x1e0 [ 6215.767754][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6215.767754][ T253] [ 6225.914301][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6225.914799][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6225.914799][ T253] dst_init+0x84/0x4a0 [ 6225.914799][ T253] dst_alloc+0x97/0x150 [ 6225.914799][ T253] ip6_dst_alloc+0x23/0x90 [ 6225.914799][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6225.914799][ T253] ip6_pol_route+0x56f/0x840 [ 6225.914799][ T253] fib6_rule_lookup+0x334/0x630 [ 6225.914799][ T253] ip6_route_output_flags+0x259/0x480 [ 6225.914799][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6225.914799][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6225.914799][ T253] netlink_rcv_skb+0x130/0x360 [ 6225.914799][ T253] netlink_unicast+0x449/0x710 [ 6225.914799][ T253] netlink_sendmsg+0x723/0xbe0 [ 6225.914799][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6225.914799][ T253] ___sys_sendmsg+0xee/0x170 [ 6225.914799][ T253] __sys_sendmsg+0xcd/0x170 [ 6225.914799][ T253] do_syscall_64+0xc6/0x1e0 [ 6225.914799][ T253] [ 6225.917033][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6225.917033][ T253] netdev_get_by_index+0x5e/0x80 [ 6225.917033][ T253] fib6_nh_init+0x3d8/0x1580 [ 6225.917033][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6225.917033][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6225.917033][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6225.917033][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6225.917033][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6225.917033][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6225.917033][ T253] addrconf_dad_begin+0x310/0x670 [ 6225.917033][ T253] addrconf_dad_work+0x10b/0xab0 [ 6225.917033][ T253] process_one_work+0x84d/0x18a0 [ 6225.917033][ T253] worker_thread+0x587/0xd30 [ 6225.917033][ T253] kthread+0x28a/0x350 [ 6225.917033][ T253] ret_from_fork+0x31/0x70 [ 6225.917033][ T253] ret_from_fork_asm+0x1a/0x30 [ 6225.917033][ T253] [ 6225.919220][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6225.919220][ T253] netdev_get_by_index+0x5e/0x80 [ 6225.919220][ T253] fib6_nh_init+0x3d8/0x1580 [ 6225.919220][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6225.919220][ T253] ip6_route_add+0x1c/0x140 [ 6225.919220][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6225.919220][ T253] inet6_addr_add+0x4f8/0xa40 [ 6225.919220][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6225.919220][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6225.919220][ T253] netlink_rcv_skb+0x130/0x360 [ 6225.919220][ T253] netlink_unicast+0x449/0x710 [ 6225.919220][ T253] netlink_sendmsg+0x723/0xbe0 [ 6225.919220][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6225.919220][ T253] ___sys_sendmsg+0xee/0x170 [ 6225.919220][ T253] __sys_sendmsg+0xcd/0x170 [ 6225.919220][ T253] do_syscall_64+0xc6/0x1e0 [ 6225.919220][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6225.919220][ T253] [ 6225.921497][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6225.921497][ T253] netdev_get_by_index+0x5e/0x80 [ 6225.921497][ T253] fib6_nh_init+0x3d8/0x1580 [ 6225.921497][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6225.921497][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6225.921497][ T253] ipv6_add_addr+0x411/0x2000 [ 6225.921497][ T253] inet6_addr_add+0x30e/0xa40 [ 6225.921497][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6225.921497][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6225.921497][ T253] netlink_rcv_skb+0x130/0x360 [ 6225.921497][ T253] netlink_unicast+0x449/0x710 [ 6225.921497][ T253] netlink_sendmsg+0x723/0xbe0 [ 6225.921497][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6225.921497][ T253] ___sys_sendmsg+0xee/0x170 [ 6225.921497][ T253] __sys_sendmsg+0xcd/0x170 [ 6225.921497][ T253] do_syscall_64+0xc6/0x1e0 [ 6225.921497][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6225.921497][ T253] [ 6225.923760][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6225.923760][ T253] netdev_get_by_index+0x5e/0x80 [ 6225.923760][ T253] fib6_nh_init+0x3d8/0x1580 [ 6225.923760][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6225.923760][ T253] ip6_route_add+0x1c/0x140 [ 6225.923760][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6225.923760][ T253] addrconf_add_dev+0xe2/0x170 [ 6225.923760][ T253] inet6_addr_add+0x12f/0xa40 [ 6225.923760][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6225.923760][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6225.923760][ T253] netlink_rcv_skb+0x130/0x360 [ 6225.923760][ T253] netlink_unicast+0x449/0x710 [ 6225.923760][ T253] netlink_sendmsg+0x723/0xbe0 [ 6225.923760][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6225.923760][ T253] ___sys_sendmsg+0xee/0x170 [ 6225.923760][ T253] __sys_sendmsg+0xcd/0x170 [ 6225.923760][ T253] do_syscall_64+0xc6/0x1e0 [ 6225.923760][ T253] [ 6225.925998][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6225.925998][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6225.925998][ T253] ipv6_find_idev+0x102/0x170 [ 6225.925998][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6225.925998][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6225.925998][ T253] netlink_rcv_skb+0x130/0x360 [ 6225.925998][ T253] netlink_unicast+0x449/0x710 [ 6225.925998][ T253] netlink_sendmsg+0x723/0xbe0 [ 6225.925998][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6225.925998][ T253] ___sys_sendmsg+0xee/0x170 [ 6225.925998][ T253] __sys_sendmsg+0xcd/0x170 [ 6225.925998][ T253] do_syscall_64+0xc6/0x1e0 [ 6225.925998][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6225.925998][ T253] [ 6225.927736][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6225.927736][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6225.927736][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6225.927736][ T253] ipv6_find_idev+0x102/0x170 [ 6225.927736][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6225.927736][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6225.927736][ T253] netlink_rcv_skb+0x130/0x360 [ 6225.927736][ T253] netlink_unicast+0x449/0x710 [ 6225.927736][ T253] netlink_sendmsg+0x723/0xbe0 [ 6225.927736][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6225.927736][ T253] ___sys_sendmsg+0xee/0x170 [ 6225.927736][ T253] __sys_sendmsg+0xcd/0x170 [ 6225.927736][ T253] do_syscall_64+0xc6/0x1e0 [ 6225.927736][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6225.927736][ T253] [ 6236.098306][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6236.098803][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6236.098803][ T253] dst_init+0x84/0x4a0 [ 6236.098803][ T253] dst_alloc+0x97/0x150 [ 6236.098803][ T253] ip6_dst_alloc+0x23/0x90 [ 6236.098803][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6236.098803][ T253] ip6_pol_route+0x56f/0x840 [ 6236.098803][ T253] fib6_rule_lookup+0x334/0x630 [ 6236.098803][ T253] ip6_route_output_flags+0x259/0x480 [ 6236.098803][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6236.098803][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6236.098803][ T253] netlink_rcv_skb+0x130/0x360 [ 6236.098803][ T253] netlink_unicast+0x449/0x710 [ 6236.098803][ T253] netlink_sendmsg+0x723/0xbe0 [ 6236.098803][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6236.098803][ T253] ___sys_sendmsg+0xee/0x170 [ 6236.098803][ T253] __sys_sendmsg+0xcd/0x170 [ 6236.098803][ T253] do_syscall_64+0xc6/0x1e0 [ 6236.098803][ T253] [ 6236.101041][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6236.101041][ T253] netdev_get_by_index+0x5e/0x80 [ 6236.101041][ T253] fib6_nh_init+0x3d8/0x1580 [ 6236.101041][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6236.101041][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6236.101041][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6236.101041][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6236.101041][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6236.101041][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6236.101041][ T253] addrconf_dad_begin+0x310/0x670 [ 6236.101041][ T253] addrconf_dad_work+0x10b/0xab0 [ 6236.101041][ T253] process_one_work+0x84d/0x18a0 [ 6236.101041][ T253] worker_thread+0x587/0xd30 [ 6236.101041][ T253] kthread+0x28a/0x350 [ 6236.101041][ T253] ret_from_fork+0x31/0x70 [ 6236.101041][ T253] ret_from_fork_asm+0x1a/0x30 [ 6236.101041][ T253] [ 6236.103201][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6236.103201][ T253] netdev_get_by_index+0x5e/0x80 [ 6236.103201][ T253] fib6_nh_init+0x3d8/0x1580 [ 6236.103201][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6236.103201][ T253] ip6_route_add+0x1c/0x140 [ 6236.103201][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6236.103201][ T253] inet6_addr_add+0x4f8/0xa40 [ 6236.103201][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6236.103201][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6236.103201][ T253] netlink_rcv_skb+0x130/0x360 [ 6236.103201][ T253] netlink_unicast+0x449/0x710 [ 6236.103201][ T253] netlink_sendmsg+0x723/0xbe0 [ 6236.103201][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6236.103201][ T253] ___sys_sendmsg+0xee/0x170 [ 6236.103201][ T253] __sys_sendmsg+0xcd/0x170 [ 6236.103201][ T253] do_syscall_64+0xc6/0x1e0 [ 6236.103201][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6236.103201][ T253] [ 6236.105437][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6236.105437][ T253] netdev_get_by_index+0x5e/0x80 [ 6236.105437][ T253] fib6_nh_init+0x3d8/0x1580 [ 6236.105437][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6236.105437][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6236.105437][ T253] ipv6_add_addr+0x411/0x2000 [ 6236.105437][ T253] inet6_addr_add+0x30e/0xa40 [ 6236.105437][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6236.105437][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6236.105437][ T253] netlink_rcv_skb+0x130/0x360 [ 6236.105437][ T253] netlink_unicast+0x449/0x710 [ 6236.105437][ T253] netlink_sendmsg+0x723/0xbe0 [ 6236.105437][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6236.105437][ T253] ___sys_sendmsg+0xee/0x170 [ 6236.105437][ T253] __sys_sendmsg+0xcd/0x170 [ 6236.105437][ T253] do_syscall_64+0xc6/0x1e0 [ 6236.105437][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6236.105437][ T253] [ 6236.107694][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6236.107694][ T253] netdev_get_by_index+0x5e/0x80 [ 6236.107694][ T253] fib6_nh_init+0x3d8/0x1580 [ 6236.107694][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6236.107694][ T253] ip6_route_add+0x1c/0x140 [ 6236.107694][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6236.107694][ T253] addrconf_add_dev+0xe2/0x170 [ 6236.107694][ T253] inet6_addr_add+0x12f/0xa40 [ 6236.107694][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6236.107694][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6236.107694][ T253] netlink_rcv_skb+0x130/0x360 [ 6236.107694][ T253] netlink_unicast+0x449/0x710 [ 6236.107694][ T253] netlink_sendmsg+0x723/0xbe0 [ 6236.107694][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6236.107694][ T253] ___sys_sendmsg+0xee/0x170 [ 6236.107694][ T253] __sys_sendmsg+0xcd/0x170 [ 6236.107694][ T253] do_syscall_64+0xc6/0x1e0 [ 6236.107694][ T253] [ 6236.109930][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6236.109930][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6236.109930][ T253] ipv6_find_idev+0x102/0x170 [ 6236.109930][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6236.109930][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6236.109930][ T253] netlink_rcv_skb+0x130/0x360 [ 6236.109930][ T253] netlink_unicast+0x449/0x710 [ 6236.109930][ T253] netlink_sendmsg+0x723/0xbe0 [ 6236.109930][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6236.109930][ T253] ___sys_sendmsg+0xee/0x170 [ 6236.109930][ T253] __sys_sendmsg+0xcd/0x170 [ 6236.109930][ T253] do_syscall_64+0xc6/0x1e0 [ 6236.109930][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6236.109930][ T253] [ 6236.111702][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6236.111702][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6236.111702][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6236.111702][ T253] ipv6_find_idev+0x102/0x170 [ 6236.111702][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6236.111702][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6236.111702][ T253] netlink_rcv_skb+0x130/0x360 [ 6236.111702][ T253] netlink_unicast+0x449/0x710 [ 6236.111702][ T253] netlink_sendmsg+0x723/0xbe0 [ 6236.111702][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6236.111702][ T253] ___sys_sendmsg+0xee/0x170 [ 6236.111702][ T253] __sys_sendmsg+0xcd/0x170 [ 6236.111702][ T253] do_syscall_64+0xc6/0x1e0 [ 6236.111702][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6236.111702][ T253] [ 6246.354323][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6246.354801][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6246.354801][ T253] dst_init+0x84/0x4a0 [ 6246.354801][ T253] dst_alloc+0x97/0x150 [ 6246.354801][ T253] ip6_dst_alloc+0x23/0x90 [ 6246.354801][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6246.354801][ T253] ip6_pol_route+0x56f/0x840 [ 6246.354801][ T253] fib6_rule_lookup+0x334/0x630 [ 6246.354801][ T253] ip6_route_output_flags+0x259/0x480 [ 6246.354801][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6246.354801][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6246.354801][ T253] netlink_rcv_skb+0x130/0x360 [ 6246.354801][ T253] netlink_unicast+0x449/0x710 [ 6246.354801][ T253] netlink_sendmsg+0x723/0xbe0 [ 6246.354801][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6246.354801][ T253] ___sys_sendmsg+0xee/0x170 [ 6246.354801][ T253] __sys_sendmsg+0xcd/0x170 [ 6246.354801][ T253] do_syscall_64+0xc6/0x1e0 [ 6246.354801][ T253] [ 6246.357002][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6246.357002][ T253] netdev_get_by_index+0x5e/0x80 [ 6246.357002][ T253] fib6_nh_init+0x3d8/0x1580 [ 6246.357002][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6246.357002][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6246.357002][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6246.357002][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6246.357002][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6246.357002][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6246.357002][ T253] addrconf_dad_begin+0x310/0x670 [ 6246.357002][ T253] addrconf_dad_work+0x10b/0xab0 [ 6246.357002][ T253] process_one_work+0x84d/0x18a0 [ 6246.357002][ T253] worker_thread+0x587/0xd30 [ 6246.357002][ T253] kthread+0x28a/0x350 [ 6246.357002][ T253] ret_from_fork+0x31/0x70 [ 6246.357002][ T253] ret_from_fork_asm+0x1a/0x30 [ 6246.357002][ T253] [ 6246.359145][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6246.359145][ T253] netdev_get_by_index+0x5e/0x80 [ 6246.359145][ T253] fib6_nh_init+0x3d8/0x1580 [ 6246.359145][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6246.359145][ T253] ip6_route_add+0x1c/0x140 [ 6246.359145][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6246.359145][ T253] inet6_addr_add+0x4f8/0xa40 [ 6246.359145][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6246.359145][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6246.359145][ T253] netlink_rcv_skb+0x130/0x360 [ 6246.359145][ T253] netlink_unicast+0x449/0x710 [ 6246.359145][ T253] netlink_sendmsg+0x723/0xbe0 [ 6246.359145][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6246.359145][ T253] ___sys_sendmsg+0xee/0x170 [ 6246.359145][ T253] __sys_sendmsg+0xcd/0x170 [ 6246.359145][ T253] do_syscall_64+0xc6/0x1e0 [ 6246.359145][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6246.359145][ T253] [ 6246.361408][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6246.361408][ T253] netdev_get_by_index+0x5e/0x80 [ 6246.361408][ T253] fib6_nh_init+0x3d8/0x1580 [ 6246.361408][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6246.361408][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6246.361408][ T253] ipv6_add_addr+0x411/0x2000 [ 6246.361408][ T253] inet6_addr_add+0x30e/0xa40 [ 6246.361408][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6246.361408][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6246.361408][ T253] netlink_rcv_skb+0x130/0x360 [ 6246.361408][ T253] netlink_unicast+0x449/0x710 [ 6246.361408][ T253] netlink_sendmsg+0x723/0xbe0 [ 6246.361408][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6246.361408][ T253] ___sys_sendmsg+0xee/0x170 [ 6246.361408][ T253] __sys_sendmsg+0xcd/0x170 [ 6246.361408][ T253] do_syscall_64+0xc6/0x1e0 [ 6246.361408][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6246.361408][ T253] [ 6246.363679][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6246.363679][ T253] netdev_get_by_index+0x5e/0x80 [ 6246.363679][ T253] fib6_nh_init+0x3d8/0x1580 [ 6246.363679][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6246.363679][ T253] ip6_route_add+0x1c/0x140 [ 6246.363679][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6246.363679][ T253] addrconf_add_dev+0xe2/0x170 [ 6246.363679][ T253] inet6_addr_add+0x12f/0xa40 [ 6246.363679][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6246.363679][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6246.363679][ T253] netlink_rcv_skb+0x130/0x360 [ 6246.363679][ T253] netlink_unicast+0x449/0x710 [ 6246.363679][ T253] netlink_sendmsg+0x723/0xbe0 [ 6246.363679][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6246.363679][ T253] ___sys_sendmsg+0xee/0x170 [ 6246.363679][ T253] __sys_sendmsg+0xcd/0x170 [ 6246.363679][ T253] do_syscall_64+0xc6/0x1e0 [ 6246.363679][ T253] [ 6246.365879][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6246.365879][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6246.365879][ T253] ipv6_find_idev+0x102/0x170 [ 6246.365879][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6246.365879][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6246.365879][ T253] netlink_rcv_skb+0x130/0x360 [ 6246.365879][ T253] netlink_unicast+0x449/0x710 [ 6246.365879][ T253] netlink_sendmsg+0x723/0xbe0 [ 6246.365879][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6246.365879][ T253] ___sys_sendmsg+0xee/0x170 [ 6246.365879][ T253] __sys_sendmsg+0xcd/0x170 [ 6246.365879][ T253] do_syscall_64+0xc6/0x1e0 [ 6246.365879][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6246.365879][ T253] [ 6246.367606][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6246.367606][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6246.367606][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6246.367606][ T253] ipv6_find_idev+0x102/0x170 [ 6246.367606][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6246.367606][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6246.367606][ T253] netlink_rcv_skb+0x130/0x360 [ 6246.367606][ T253] netlink_unicast+0x449/0x710 [ 6246.367606][ T253] netlink_sendmsg+0x723/0xbe0 [ 6246.367606][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6246.367606][ T253] ___sys_sendmsg+0xee/0x170 [ 6246.367606][ T253] __sys_sendmsg+0xcd/0x170 [ 6246.367606][ T253] do_syscall_64+0xc6/0x1e0 [ 6246.367606][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6246.367606][ T253] [ 6256.610317][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6256.610816][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6256.610816][ T253] dst_init+0x84/0x4a0 [ 6256.610816][ T253] dst_alloc+0x97/0x150 [ 6256.610816][ T253] ip6_dst_alloc+0x23/0x90 [ 6256.610816][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6256.610816][ T253] ip6_pol_route+0x56f/0x840 [ 6256.610816][ T253] fib6_rule_lookup+0x334/0x630 [ 6256.610816][ T253] ip6_route_output_flags+0x259/0x480 [ 6256.610816][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6256.610816][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6256.610816][ T253] netlink_rcv_skb+0x130/0x360 [ 6256.610816][ T253] netlink_unicast+0x449/0x710 [ 6256.610816][ T253] netlink_sendmsg+0x723/0xbe0 [ 6256.610816][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6256.610816][ T253] ___sys_sendmsg+0xee/0x170 [ 6256.610816][ T253] __sys_sendmsg+0xcd/0x170 [ 6256.610816][ T253] do_syscall_64+0xc6/0x1e0 [ 6256.610816][ T253] [ 6256.613023][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6256.613023][ T253] netdev_get_by_index+0x5e/0x80 [ 6256.613023][ T253] fib6_nh_init+0x3d8/0x1580 [ 6256.613023][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6256.613023][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6256.613023][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6256.613023][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6256.613023][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6256.613023][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6256.613023][ T253] addrconf_dad_begin+0x310/0x670 [ 6256.613023][ T253] addrconf_dad_work+0x10b/0xab0 [ 6256.613023][ T253] process_one_work+0x84d/0x18a0 [ 6256.613023][ T253] worker_thread+0x587/0xd30 [ 6256.613023][ T253] kthread+0x28a/0x350 [ 6256.613023][ T253] ret_from_fork+0x31/0x70 [ 6256.613023][ T253] ret_from_fork_asm+0x1a/0x30 [ 6256.613023][ T253] [ 6256.615175][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6256.615175][ T253] netdev_get_by_index+0x5e/0x80 [ 6256.615175][ T253] fib6_nh_init+0x3d8/0x1580 [ 6256.615175][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6256.615175][ T253] ip6_route_add+0x1c/0x140 [ 6256.615175][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6256.615175][ T253] inet6_addr_add+0x4f8/0xa40 [ 6256.615175][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6256.615175][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6256.615175][ T253] netlink_rcv_skb+0x130/0x360 [ 6256.615175][ T253] netlink_unicast+0x449/0x710 [ 6256.615175][ T253] netlink_sendmsg+0x723/0xbe0 [ 6256.615175][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6256.615175][ T253] ___sys_sendmsg+0xee/0x170 [ 6256.615175][ T253] __sys_sendmsg+0xcd/0x170 [ 6256.615175][ T253] do_syscall_64+0xc6/0x1e0 [ 6256.615175][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6256.615175][ T253] [ 6256.617431][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6256.617431][ T253] netdev_get_by_index+0x5e/0x80 [ 6256.617431][ T253] fib6_nh_init+0x3d8/0x1580 [ 6256.617431][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6256.617431][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6256.617431][ T253] ipv6_add_addr+0x411/0x2000 [ 6256.617431][ T253] inet6_addr_add+0x30e/0xa40 [ 6256.617431][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6256.617431][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6256.617431][ T253] netlink_rcv_skb+0x130/0x360 [ 6256.617431][ T253] netlink_unicast+0x449/0x710 [ 6256.617431][ T253] netlink_sendmsg+0x723/0xbe0 [ 6256.617431][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6256.617431][ T253] ___sys_sendmsg+0xee/0x170 [ 6256.617431][ T253] __sys_sendmsg+0xcd/0x170 [ 6256.617431][ T253] do_syscall_64+0xc6/0x1e0 [ 6256.617431][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6256.617431][ T253] [ 6256.619678][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6256.619678][ T253] netdev_get_by_index+0x5e/0x80 [ 6256.619678][ T253] fib6_nh_init+0x3d8/0x1580 [ 6256.619678][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6256.619678][ T253] ip6_route_add+0x1c/0x140 [ 6256.619678][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6256.619678][ T253] addrconf_add_dev+0xe2/0x170 [ 6256.619678][ T253] inet6_addr_add+0x12f/0xa40 [ 6256.619678][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6256.619678][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6256.619678][ T253] netlink_rcv_skb+0x130/0x360 [ 6256.619678][ T253] netlink_unicast+0x449/0x710 [ 6256.619678][ T253] netlink_sendmsg+0x723/0xbe0 [ 6256.619678][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6256.619678][ T253] ___sys_sendmsg+0xee/0x170 [ 6256.619678][ T253] __sys_sendmsg+0xcd/0x170 [ 6256.619678][ T253] do_syscall_64+0xc6/0x1e0 [ 6256.619678][ T253] [ 6256.621887][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6256.621887][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6256.621887][ T253] ipv6_find_idev+0x102/0x170 [ 6256.621887][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6256.621887][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6256.621887][ T253] netlink_rcv_skb+0x130/0x360 [ 6256.621887][ T253] netlink_unicast+0x449/0x710 [ 6256.621887][ T253] netlink_sendmsg+0x723/0xbe0 [ 6256.621887][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6256.621887][ T253] ___sys_sendmsg+0xee/0x170 [ 6256.621887][ T253] __sys_sendmsg+0xcd/0x170 [ 6256.621887][ T253] do_syscall_64+0xc6/0x1e0 [ 6256.621887][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6256.621887][ T253] [ 6256.623621][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6256.623621][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6256.623621][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6256.623621][ T253] ipv6_find_idev+0x102/0x170 [ 6256.623621][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6256.623621][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6256.623621][ T253] netlink_rcv_skb+0x130/0x360 [ 6256.623621][ T253] netlink_unicast+0x449/0x710 [ 6256.623621][ T253] netlink_sendmsg+0x723/0xbe0 [ 6256.623621][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6256.623621][ T253] ___sys_sendmsg+0xee/0x170 [ 6256.623621][ T253] __sys_sendmsg+0xcd/0x170 [ 6256.623621][ T253] do_syscall_64+0xc6/0x1e0 [ 6256.623621][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6256.623621][ T253] [ 6266.866350][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6266.866872][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6266.866872][ T253] dst_init+0x84/0x4a0 [ 6266.866872][ T253] dst_alloc+0x97/0x150 [ 6266.866872][ T253] ip6_dst_alloc+0x23/0x90 [ 6266.866872][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6266.866872][ T253] ip6_pol_route+0x56f/0x840 [ 6266.866872][ T253] fib6_rule_lookup+0x334/0x630 [ 6266.866872][ T253] ip6_route_output_flags+0x259/0x480 [ 6266.866872][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6266.866872][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6266.866872][ T253] netlink_rcv_skb+0x130/0x360 [ 6266.866872][ T253] netlink_unicast+0x449/0x710 [ 6266.866872][ T253] netlink_sendmsg+0x723/0xbe0 [ 6266.866872][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6266.866872][ T253] ___sys_sendmsg+0xee/0x170 [ 6266.866872][ T253] __sys_sendmsg+0xcd/0x170 [ 6266.866872][ T253] do_syscall_64+0xc6/0x1e0 [ 6266.866872][ T253] [ 6266.869075][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6266.869075][ T253] netdev_get_by_index+0x5e/0x80 [ 6266.869075][ T253] fib6_nh_init+0x3d8/0x1580 [ 6266.869075][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6266.869075][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6266.869075][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6266.869075][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6266.869075][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6266.869075][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6266.869075][ T253] addrconf_dad_begin+0x310/0x670 [ 6266.869075][ T253] addrconf_dad_work+0x10b/0xab0 [ 6266.869075][ T253] process_one_work+0x84d/0x18a0 [ 6266.869075][ T253] worker_thread+0x587/0xd30 [ 6266.869075][ T253] kthread+0x28a/0x350 [ 6266.869075][ T253] ret_from_fork+0x31/0x70 [ 6266.869075][ T253] ret_from_fork_asm+0x1a/0x30 [ 6266.869075][ T253] [ 6266.871250][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6266.871250][ T253] netdev_get_by_index+0x5e/0x80 [ 6266.871250][ T253] fib6_nh_init+0x3d8/0x1580 [ 6266.871250][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6266.871250][ T253] ip6_route_add+0x1c/0x140 [ 6266.871250][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6266.871250][ T253] inet6_addr_add+0x4f8/0xa40 [ 6266.871250][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6266.871250][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6266.871250][ T253] netlink_rcv_skb+0x130/0x360 [ 6266.871250][ T253] netlink_unicast+0x449/0x710 [ 6266.871250][ T253] netlink_sendmsg+0x723/0xbe0 [ 6266.871250][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6266.871250][ T253] ___sys_sendmsg+0xee/0x170 [ 6266.871250][ T253] __sys_sendmsg+0xcd/0x170 [ 6266.871250][ T253] do_syscall_64+0xc6/0x1e0 [ 6266.871250][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6266.871250][ T253] [ 6266.873505][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6266.873505][ T253] netdev_get_by_index+0x5e/0x80 [ 6266.873505][ T253] fib6_nh_init+0x3d8/0x1580 [ 6266.873505][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6266.873505][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6266.873505][ T253] ipv6_add_addr+0x411/0x2000 [ 6266.873505][ T253] inet6_addr_add+0x30e/0xa40 [ 6266.873505][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6266.873505][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6266.873505][ T253] netlink_rcv_skb+0x130/0x360 [ 6266.873505][ T253] netlink_unicast+0x449/0x710 [ 6266.873505][ T253] netlink_sendmsg+0x723/0xbe0 [ 6266.873505][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6266.873505][ T253] ___sys_sendmsg+0xee/0x170 [ 6266.873505][ T253] __sys_sendmsg+0xcd/0x170 [ 6266.873505][ T253] do_syscall_64+0xc6/0x1e0 [ 6266.873505][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6266.873505][ T253] [ 6266.875752][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6266.875752][ T253] netdev_get_by_index+0x5e/0x80 [ 6266.875752][ T253] fib6_nh_init+0x3d8/0x1580 [ 6266.875752][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6266.875752][ T253] ip6_route_add+0x1c/0x140 [ 6266.875752][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6266.875752][ T253] addrconf_add_dev+0xe2/0x170 [ 6266.875752][ T253] inet6_addr_add+0x12f/0xa40 [ 6266.875752][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6266.875752][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6266.875752][ T253] netlink_rcv_skb+0x130/0x360 [ 6266.875752][ T253] netlink_unicast+0x449/0x710 [ 6266.875752][ T253] netlink_sendmsg+0x723/0xbe0 [ 6266.875752][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6266.875752][ T253] ___sys_sendmsg+0xee/0x170 [ 6266.875752][ T253] __sys_sendmsg+0xcd/0x170 [ 6266.875752][ T253] do_syscall_64+0xc6/0x1e0 [ 6266.875752][ T253] [ 6266.878485][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6266.878485][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6266.878485][ T253] ipv6_find_idev+0x102/0x170 [ 6266.878485][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6266.878485][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6266.878485][ T253] netlink_rcv_skb+0x130/0x360 [ 6266.878485][ T253] netlink_unicast+0x449/0x710 [ 6266.878485][ T253] netlink_sendmsg+0x723/0xbe0 [ 6266.878485][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6266.878485][ T253] ___sys_sendmsg+0xee/0x170 [ 6266.878485][ T253] __sys_sendmsg+0xcd/0x170 [ 6266.878485][ T253] do_syscall_64+0xc6/0x1e0 [ 6266.878485][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6266.878485][ T253] [ 6266.880215][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6266.880215][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6266.880215][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6266.880215][ T253] ipv6_find_idev+0x102/0x170 [ 6266.880215][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6266.880215][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6266.880215][ T253] netlink_rcv_skb+0x130/0x360 [ 6266.880215][ T253] netlink_unicast+0x449/0x710 [ 6266.880215][ T253] netlink_sendmsg+0x723/0xbe0 [ 6266.880215][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6266.880215][ T253] ___sys_sendmsg+0xee/0x170 [ 6266.880215][ T253] __sys_sendmsg+0xcd/0x170 [ 6266.880215][ T253] do_syscall_64+0xc6/0x1e0 [ 6266.880215][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6266.880215][ T253] [ 6276.930326][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6276.930847][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6276.930847][ T253] dst_init+0x84/0x4a0 [ 6276.930847][ T253] dst_alloc+0x97/0x150 [ 6276.930847][ T253] ip6_dst_alloc+0x23/0x90 [ 6276.930847][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6276.930847][ T253] ip6_pol_route+0x56f/0x840 [ 6276.930847][ T253] fib6_rule_lookup+0x334/0x630 [ 6276.930847][ T253] ip6_route_output_flags+0x259/0x480 [ 6276.930847][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6276.930847][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6276.930847][ T253] netlink_rcv_skb+0x130/0x360 [ 6276.930847][ T253] netlink_unicast+0x449/0x710 [ 6276.930847][ T253] netlink_sendmsg+0x723/0xbe0 [ 6276.930847][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6276.930847][ T253] ___sys_sendmsg+0xee/0x170 [ 6276.930847][ T253] __sys_sendmsg+0xcd/0x170 [ 6276.930847][ T253] do_syscall_64+0xc6/0x1e0 [ 6276.930847][ T253] [ 6276.933087][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6276.933087][ T253] netdev_get_by_index+0x5e/0x80 [ 6276.933087][ T253] fib6_nh_init+0x3d8/0x1580 [ 6276.933087][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6276.933087][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6276.933087][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6276.933087][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6276.933087][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6276.933087][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6276.933087][ T253] addrconf_dad_begin+0x310/0x670 [ 6276.933087][ T253] addrconf_dad_work+0x10b/0xab0 [ 6276.933087][ T253] process_one_work+0x84d/0x18a0 [ 6276.933087][ T253] worker_thread+0x587/0xd30 [ 6276.933087][ T253] kthread+0x28a/0x350 [ 6276.933087][ T253] ret_from_fork+0x31/0x70 [ 6276.933087][ T253] ret_from_fork_asm+0x1a/0x30 [ 6276.933087][ T253] [ 6276.935254][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6276.935254][ T253] netdev_get_by_index+0x5e/0x80 [ 6276.935254][ T253] fib6_nh_init+0x3d8/0x1580 [ 6276.935254][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6276.935254][ T253] ip6_route_add+0x1c/0x140 [ 6276.935254][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6276.935254][ T253] inet6_addr_add+0x4f8/0xa40 [ 6276.935254][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6276.935254][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6276.935254][ T253] netlink_rcv_skb+0x130/0x360 [ 6276.935254][ T253] netlink_unicast+0x449/0x710 [ 6276.935254][ T253] netlink_sendmsg+0x723/0xbe0 [ 6276.935254][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6276.935254][ T253] ___sys_sendmsg+0xee/0x170 [ 6276.935254][ T253] __sys_sendmsg+0xcd/0x170 [ 6276.935254][ T253] do_syscall_64+0xc6/0x1e0 [ 6276.935254][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6276.935254][ T253] [ 6276.937531][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6276.937531][ T253] netdev_get_by_index+0x5e/0x80 [ 6276.937531][ T253] fib6_nh_init+0x3d8/0x1580 [ 6276.937531][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6276.937531][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6276.937531][ T253] ipv6_add_addr+0x411/0x2000 [ 6276.937531][ T253] inet6_addr_add+0x30e/0xa40 [ 6276.937531][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6276.937531][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6276.937531][ T253] netlink_rcv_skb+0x130/0x360 [ 6276.937531][ T253] netlink_unicast+0x449/0x710 [ 6276.937531][ T253] netlink_sendmsg+0x723/0xbe0 [ 6276.937531][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6276.937531][ T253] ___sys_sendmsg+0xee/0x170 [ 6276.937531][ T253] __sys_sendmsg+0xcd/0x170 [ 6276.937531][ T253] do_syscall_64+0xc6/0x1e0 [ 6276.937531][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6276.937531][ T253] [ 6276.940183][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6276.940183][ T253] netdev_get_by_index+0x5e/0x80 [ 6276.940183][ T253] fib6_nh_init+0x3d8/0x1580 [ 6276.940183][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6276.940183][ T253] ip6_route_add+0x1c/0x140 [ 6276.940183][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6276.940183][ T253] addrconf_add_dev+0xe2/0x170 [ 6276.940183][ T253] inet6_addr_add+0x12f/0xa40 [ 6276.940183][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6276.940183][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6276.940183][ T253] netlink_rcv_skb+0x130/0x360 [ 6276.940183][ T253] netlink_unicast+0x449/0x710 [ 6276.940183][ T253] netlink_sendmsg+0x723/0xbe0 [ 6276.940183][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6276.940183][ T253] ___sys_sendmsg+0xee/0x170 [ 6276.940183][ T253] __sys_sendmsg+0xcd/0x170 [ 6276.940183][ T253] do_syscall_64+0xc6/0x1e0 [ 6276.940183][ T253] [ 6276.942940][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6276.942940][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6276.942940][ T253] ipv6_find_idev+0x102/0x170 [ 6276.942940][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6276.942940][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6276.942940][ T253] netlink_rcv_skb+0x130/0x360 [ 6276.942940][ T253] netlink_unicast+0x449/0x710 [ 6276.942940][ T253] netlink_sendmsg+0x723/0xbe0 [ 6276.942940][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6276.942940][ T253] ___sys_sendmsg+0xee/0x170 [ 6276.942940][ T253] __sys_sendmsg+0xcd/0x170 [ 6276.942940][ T253] do_syscall_64+0xc6/0x1e0 [ 6276.942940][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6276.942940][ T253] [ 6276.944675][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6276.944675][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6276.944675][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6276.944675][ T253] ipv6_find_idev+0x102/0x170 [ 6276.944675][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6276.944675][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6276.944675][ T253] netlink_rcv_skb+0x130/0x360 [ 6276.944675][ T253] netlink_unicast+0x449/0x710 [ 6276.944675][ T253] netlink_sendmsg+0x723/0xbe0 [ 6276.944675][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6276.944675][ T253] ___sys_sendmsg+0xee/0x170 [ 6276.944675][ T253] __sys_sendmsg+0xcd/0x170 [ 6276.944675][ T253] do_syscall_64+0xc6/0x1e0 [ 6276.944675][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6276.944675][ T253] [ 6287.098322][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6287.098808][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6287.098808][ T253] dst_init+0x84/0x4a0 [ 6287.098808][ T253] dst_alloc+0x97/0x150 [ 6287.098808][ T253] ip6_dst_alloc+0x23/0x90 [ 6287.098808][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6287.098808][ T253] ip6_pol_route+0x56f/0x840 [ 6287.098808][ T253] fib6_rule_lookup+0x334/0x630 [ 6287.098808][ T253] ip6_route_output_flags+0x259/0x480 [ 6287.098808][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6287.098808][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6287.098808][ T253] netlink_rcv_skb+0x130/0x360 [ 6287.098808][ T253] netlink_unicast+0x449/0x710 [ 6287.098808][ T253] netlink_sendmsg+0x723/0xbe0 [ 6287.098808][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6287.098808][ T253] ___sys_sendmsg+0xee/0x170 [ 6287.098808][ T253] __sys_sendmsg+0xcd/0x170 [ 6287.098808][ T253] do_syscall_64+0xc6/0x1e0 [ 6287.098808][ T253] [ 6287.101048][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6287.101048][ T253] netdev_get_by_index+0x5e/0x80 [ 6287.101048][ T253] fib6_nh_init+0x3d8/0x1580 [ 6287.101048][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6287.101048][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6287.101048][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6287.101048][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6287.101048][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6287.101048][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6287.101048][ T253] addrconf_dad_begin+0x310/0x670 [ 6287.101048][ T253] addrconf_dad_work+0x10b/0xab0 [ 6287.101048][ T253] process_one_work+0x84d/0x18a0 [ 6287.101048][ T253] worker_thread+0x587/0xd30 [ 6287.101048][ T253] kthread+0x28a/0x350 [ 6287.101048][ T253] ret_from_fork+0x31/0x70 [ 6287.101048][ T253] ret_from_fork_asm+0x1a/0x30 [ 6287.101048][ T253] [ 6287.103233][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6287.103233][ T253] netdev_get_by_index+0x5e/0x80 [ 6287.103233][ T253] fib6_nh_init+0x3d8/0x1580 [ 6287.103233][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6287.103233][ T253] ip6_route_add+0x1c/0x140 [ 6287.103233][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6287.103233][ T253] inet6_addr_add+0x4f8/0xa40 [ 6287.103233][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6287.103233][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6287.103233][ T253] netlink_rcv_skb+0x130/0x360 [ 6287.103233][ T253] netlink_unicast+0x449/0x710 [ 6287.103233][ T253] netlink_sendmsg+0x723/0xbe0 [ 6287.103233][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6287.103233][ T253] ___sys_sendmsg+0xee/0x170 [ 6287.103233][ T253] __sys_sendmsg+0xcd/0x170 [ 6287.103233][ T253] do_syscall_64+0xc6/0x1e0 [ 6287.103233][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6287.103233][ T253] [ 6287.105481][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6287.105481][ T253] netdev_get_by_index+0x5e/0x80 [ 6287.105481][ T253] fib6_nh_init+0x3d8/0x1580 [ 6287.105481][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6287.105481][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6287.105481][ T253] ipv6_add_addr+0x411/0x2000 [ 6287.105481][ T253] inet6_addr_add+0x30e/0xa40 [ 6287.105481][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6287.105481][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6287.105481][ T253] netlink_rcv_skb+0x130/0x360 [ 6287.105481][ T253] netlink_unicast+0x449/0x710 [ 6287.105481][ T253] netlink_sendmsg+0x723/0xbe0 [ 6287.105481][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6287.105481][ T253] ___sys_sendmsg+0xee/0x170 [ 6287.105481][ T253] __sys_sendmsg+0xcd/0x170 [ 6287.105481][ T253] do_syscall_64+0xc6/0x1e0 [ 6287.105481][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6287.105481][ T253] [ 6287.107760][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6287.107760][ T253] netdev_get_by_index+0x5e/0x80 [ 6287.107760][ T253] fib6_nh_init+0x3d8/0x1580 [ 6287.107760][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6287.107760][ T253] ip6_route_add+0x1c/0x140 [ 6287.107760][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6287.107760][ T253] addrconf_add_dev+0xe2/0x170 [ 6287.107760][ T253] inet6_addr_add+0x12f/0xa40 [ 6287.107760][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6287.107760][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6287.107760][ T253] netlink_rcv_skb+0x130/0x360 [ 6287.107760][ T253] netlink_unicast+0x449/0x710 [ 6287.107760][ T253] netlink_sendmsg+0x723/0xbe0 [ 6287.107760][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6287.107760][ T253] ___sys_sendmsg+0xee/0x170 [ 6287.107760][ T253] __sys_sendmsg+0xcd/0x170 [ 6287.107760][ T253] do_syscall_64+0xc6/0x1e0 [ 6287.107760][ T253] [ 6287.110008][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6287.110008][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6287.110008][ T253] ipv6_find_idev+0x102/0x170 [ 6287.110008][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6287.110008][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6287.110008][ T253] netlink_rcv_skb+0x130/0x360 [ 6287.110008][ T253] netlink_unicast+0x449/0x710 [ 6287.110008][ T253] netlink_sendmsg+0x723/0xbe0 [ 6287.110008][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6287.110008][ T253] ___sys_sendmsg+0xee/0x170 [ 6287.110008][ T253] __sys_sendmsg+0xcd/0x170 [ 6287.110008][ T253] do_syscall_64+0xc6/0x1e0 [ 6287.110008][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6287.110008][ T253] [ 6287.111758][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6287.111758][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6287.111758][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6287.111758][ T253] ipv6_find_idev+0x102/0x170 [ 6287.111758][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6287.111758][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6287.111758][ T253] netlink_rcv_skb+0x130/0x360 [ 6287.111758][ T253] netlink_unicast+0x449/0x710 [ 6287.111758][ T253] netlink_sendmsg+0x723/0xbe0 [ 6287.111758][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6287.111758][ T253] ___sys_sendmsg+0xee/0x170 [ 6287.111758][ T253] __sys_sendmsg+0xcd/0x170 [ 6287.111758][ T253] do_syscall_64+0xc6/0x1e0 [ 6287.111758][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6287.111758][ T253] [ 6297.146306][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6297.146838][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6297.146838][ T253] dst_init+0x84/0x4a0 [ 6297.146838][ T253] dst_alloc+0x97/0x150 [ 6297.146838][ T253] ip6_dst_alloc+0x23/0x90 [ 6297.146838][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6297.146838][ T253] ip6_pol_route+0x56f/0x840 [ 6297.146838][ T253] fib6_rule_lookup+0x334/0x630 [ 6297.146838][ T253] ip6_route_output_flags+0x259/0x480 [ 6297.146838][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6297.146838][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6297.146838][ T253] netlink_rcv_skb+0x130/0x360 [ 6297.146838][ T253] netlink_unicast+0x449/0x710 [ 6297.146838][ T253] netlink_sendmsg+0x723/0xbe0 [ 6297.146838][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6297.146838][ T253] ___sys_sendmsg+0xee/0x170 [ 6297.146838][ T253] __sys_sendmsg+0xcd/0x170 [ 6297.146838][ T253] do_syscall_64+0xc6/0x1e0 [ 6297.146838][ T253] [ 6297.149253][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6297.149253][ T253] netdev_get_by_index+0x5e/0x80 [ 6297.149253][ T253] fib6_nh_init+0x3d8/0x1580 [ 6297.149253][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6297.149253][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6297.149253][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6297.149253][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6297.149253][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6297.149253][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6297.149253][ T253] addrconf_dad_begin+0x310/0x670 [ 6297.149253][ T253] addrconf_dad_work+0x10b/0xab0 [ 6297.149253][ T253] process_one_work+0x84d/0x18a0 [ 6297.149253][ T253] worker_thread+0x587/0xd30 [ 6297.149253][ T253] kthread+0x28a/0x350 [ 6297.149253][ T253] ret_from_fork+0x31/0x70 [ 6297.149253][ T253] ret_from_fork_asm+0x1a/0x30 [ 6297.149253][ T253] [ 6297.151629][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6297.151629][ T253] netdev_get_by_index+0x5e/0x80 [ 6297.151629][ T253] fib6_nh_init+0x3d8/0x1580 [ 6297.151629][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6297.151629][ T253] ip6_route_add+0x1c/0x140 [ 6297.151629][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6297.151629][ T253] inet6_addr_add+0x4f8/0xa40 [ 6297.151629][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6297.151629][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6297.151629][ T253] netlink_rcv_skb+0x130/0x360 [ 6297.151629][ T253] netlink_unicast+0x449/0x710 [ 6297.151629][ T253] netlink_sendmsg+0x723/0xbe0 [ 6297.151629][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6297.151629][ T253] ___sys_sendmsg+0xee/0x170 [ 6297.151629][ T253] __sys_sendmsg+0xcd/0x170 [ 6297.151629][ T253] do_syscall_64+0xc6/0x1e0 [ 6297.151629][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6297.151629][ T253] [ 6297.154083][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6297.154083][ T253] netdev_get_by_index+0x5e/0x80 [ 6297.154083][ T253] fib6_nh_init+0x3d8/0x1580 [ 6297.154083][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6297.154083][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6297.154083][ T253] ipv6_add_addr+0x411/0x2000 [ 6297.154083][ T253] inet6_addr_add+0x30e/0xa40 [ 6297.154083][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6297.154083][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6297.154083][ T253] netlink_rcv_skb+0x130/0x360 [ 6297.154083][ T253] netlink_unicast+0x449/0x710 [ 6297.154083][ T253] netlink_sendmsg+0x723/0xbe0 [ 6297.154083][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6297.154083][ T253] ___sys_sendmsg+0xee/0x170 [ 6297.154083][ T253] __sys_sendmsg+0xcd/0x170 [ 6297.154083][ T253] do_syscall_64+0xc6/0x1e0 [ 6297.154083][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6297.154083][ T253] [ 6297.156556][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6297.156556][ T253] netdev_get_by_index+0x5e/0x80 [ 6297.156556][ T253] fib6_nh_init+0x3d8/0x1580 [ 6297.156556][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6297.156556][ T253] ip6_route_add+0x1c/0x140 [ 6297.156556][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6297.156556][ T253] addrconf_add_dev+0xe2/0x170 [ 6297.156556][ T253] inet6_addr_add+0x12f/0xa40 [ 6297.156556][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6297.156556][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6297.156556][ T253] netlink_rcv_skb+0x130/0x360 [ 6297.156556][ T253] netlink_unicast+0x449/0x710 [ 6297.156556][ T253] netlink_sendmsg+0x723/0xbe0 [ 6297.156556][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6297.156556][ T253] ___sys_sendmsg+0xee/0x170 [ 6297.156556][ T253] __sys_sendmsg+0xcd/0x170 [ 6297.156556][ T253] do_syscall_64+0xc6/0x1e0 [ 6297.156556][ T253] [ 6297.158978][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6297.158978][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6297.158978][ T253] ipv6_find_idev+0x102/0x170 [ 6297.158978][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6297.158978][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6297.158978][ T253] netlink_rcv_skb+0x130/0x360 [ 6297.158978][ T253] netlink_unicast+0x449/0x710 [ 6297.158978][ T253] netlink_sendmsg+0x723/0xbe0 [ 6297.158978][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6297.158978][ T253] ___sys_sendmsg+0xee/0x170 [ 6297.158978][ T253] __sys_sendmsg+0xcd/0x170 [ 6297.158978][ T253] do_syscall_64+0xc6/0x1e0 [ 6297.158978][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6297.158978][ T253] [ 6297.160877][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6297.160877][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6297.160877][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6297.160877][ T253] ipv6_find_idev+0x102/0x170 [ 6297.160877][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6297.160877][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6297.160877][ T253] netlink_rcv_skb+0x130/0x360 [ 6297.160877][ T253] netlink_unicast+0x449/0x710 [ 6297.160877][ T253] netlink_sendmsg+0x723/0xbe0 [ 6297.160877][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6297.160877][ T253] ___sys_sendmsg+0xee/0x170 [ 6297.160877][ T253] __sys_sendmsg+0xcd/0x170 [ 6297.160877][ T253] do_syscall_64+0xc6/0x1e0 [ 6297.160877][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6297.160877][ T253] [ 6307.402320][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6307.402824][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6307.402824][ T253] dst_init+0x84/0x4a0 [ 6307.402824][ T253] dst_alloc+0x97/0x150 [ 6307.402824][ T253] ip6_dst_alloc+0x23/0x90 [ 6307.402824][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6307.402824][ T253] ip6_pol_route+0x56f/0x840 [ 6307.402824][ T253] fib6_rule_lookup+0x334/0x630 [ 6307.402824][ T253] ip6_route_output_flags+0x259/0x480 [ 6307.402824][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6307.402824][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6307.402824][ T253] netlink_rcv_skb+0x130/0x360 [ 6307.402824][ T253] netlink_unicast+0x449/0x710 [ 6307.402824][ T253] netlink_sendmsg+0x723/0xbe0 [ 6307.402824][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6307.402824][ T253] ___sys_sendmsg+0xee/0x170 [ 6307.402824][ T253] __sys_sendmsg+0xcd/0x170 [ 6307.402824][ T253] do_syscall_64+0xc6/0x1e0 [ 6307.402824][ T253] [ 6307.405039][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6307.405039][ T253] netdev_get_by_index+0x5e/0x80 [ 6307.405039][ T253] fib6_nh_init+0x3d8/0x1580 [ 6307.405039][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6307.405039][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6307.405039][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6307.405039][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6307.405039][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6307.405039][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6307.405039][ T253] addrconf_dad_begin+0x310/0x670 [ 6307.405039][ T253] addrconf_dad_work+0x10b/0xab0 [ 6307.405039][ T253] process_one_work+0x84d/0x18a0 [ 6307.405039][ T253] worker_thread+0x587/0xd30 [ 6307.405039][ T253] kthread+0x28a/0x350 [ 6307.405039][ T253] ret_from_fork+0x31/0x70 [ 6307.405039][ T253] ret_from_fork_asm+0x1a/0x30 [ 6307.405039][ T253] [ 6307.407208][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6307.407208][ T253] netdev_get_by_index+0x5e/0x80 [ 6307.407208][ T253] fib6_nh_init+0x3d8/0x1580 [ 6307.407208][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6307.407208][ T253] ip6_route_add+0x1c/0x140 [ 6307.407208][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6307.407208][ T253] inet6_addr_add+0x4f8/0xa40 [ 6307.407208][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6307.407208][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6307.407208][ T253] netlink_rcv_skb+0x130/0x360 [ 6307.407208][ T253] netlink_unicast+0x449/0x710 [ 6307.407208][ T253] netlink_sendmsg+0x723/0xbe0 [ 6307.407208][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6307.407208][ T253] ___sys_sendmsg+0xee/0x170 [ 6307.407208][ T253] __sys_sendmsg+0xcd/0x170 [ 6307.407208][ T253] do_syscall_64+0xc6/0x1e0 [ 6307.407208][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6307.407208][ T253] [ 6307.409454][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6307.409454][ T253] netdev_get_by_index+0x5e/0x80 [ 6307.409454][ T253] fib6_nh_init+0x3d8/0x1580 [ 6307.409454][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6307.409454][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6307.409454][ T253] ipv6_add_addr+0x411/0x2000 [ 6307.409454][ T253] inet6_addr_add+0x30e/0xa40 [ 6307.409454][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6307.409454][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6307.409454][ T253] netlink_rcv_skb+0x130/0x360 [ 6307.409454][ T253] netlink_unicast+0x449/0x710 [ 6307.409454][ T253] netlink_sendmsg+0x723/0xbe0 [ 6307.409454][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6307.409454][ T253] ___sys_sendmsg+0xee/0x170 [ 6307.409454][ T253] __sys_sendmsg+0xcd/0x170 [ 6307.409454][ T253] do_syscall_64+0xc6/0x1e0 [ 6307.409454][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6307.409454][ T253] [ 6307.411703][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6307.411703][ T253] netdev_get_by_index+0x5e/0x80 [ 6307.411703][ T253] fib6_nh_init+0x3d8/0x1580 [ 6307.411703][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6307.411703][ T253] ip6_route_add+0x1c/0x140 [ 6307.411703][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6307.411703][ T253] addrconf_add_dev+0xe2/0x170 [ 6307.411703][ T253] inet6_addr_add+0x12f/0xa40 [ 6307.411703][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6307.411703][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6307.411703][ T253] netlink_rcv_skb+0x130/0x360 [ 6307.411703][ T253] netlink_unicast+0x449/0x710 [ 6307.411703][ T253] netlink_sendmsg+0x723/0xbe0 [ 6307.411703][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6307.411703][ T253] ___sys_sendmsg+0xee/0x170 [ 6307.411703][ T253] __sys_sendmsg+0xcd/0x170 [ 6307.411703][ T253] do_syscall_64+0xc6/0x1e0 [ 6307.411703][ T253] [ 6307.413917][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6307.413917][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6307.413917][ T253] ipv6_find_idev+0x102/0x170 [ 6307.413917][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6307.413917][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6307.413917][ T253] netlink_rcv_skb+0x130/0x360 [ 6307.413917][ T253] netlink_unicast+0x449/0x710 [ 6307.413917][ T253] netlink_sendmsg+0x723/0xbe0 [ 6307.413917][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6307.413917][ T253] ___sys_sendmsg+0xee/0x170 [ 6307.413917][ T253] __sys_sendmsg+0xcd/0x170 [ 6307.413917][ T253] do_syscall_64+0xc6/0x1e0 [ 6307.413917][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6307.413917][ T253] [ 6307.415640][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6307.415640][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6307.415640][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6307.415640][ T253] ipv6_find_idev+0x102/0x170 [ 6307.415640][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6307.415640][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6307.415640][ T253] netlink_rcv_skb+0x130/0x360 [ 6307.415640][ T253] netlink_unicast+0x449/0x710 [ 6307.415640][ T253] netlink_sendmsg+0x723/0xbe0 [ 6307.415640][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6307.415640][ T253] ___sys_sendmsg+0xee/0x170 [ 6307.415640][ T253] __sys_sendmsg+0xcd/0x170 [ 6307.415640][ T253] do_syscall_64+0xc6/0x1e0 [ 6307.415640][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6307.415640][ T253] [ 6317.658316][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6317.658789][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6317.658789][ T253] dst_init+0x84/0x4a0 [ 6317.658789][ T253] dst_alloc+0x97/0x150 [ 6317.658789][ T253] ip6_dst_alloc+0x23/0x90 [ 6317.658789][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6317.658789][ T253] ip6_pol_route+0x56f/0x840 [ 6317.658789][ T253] fib6_rule_lookup+0x334/0x630 [ 6317.658789][ T253] ip6_route_output_flags+0x259/0x480 [ 6317.658789][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6317.658789][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6317.658789][ T253] netlink_rcv_skb+0x130/0x360 [ 6317.658789][ T253] netlink_unicast+0x449/0x710 [ 6317.658789][ T253] netlink_sendmsg+0x723/0xbe0 [ 6317.658789][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6317.658789][ T253] ___sys_sendmsg+0xee/0x170 [ 6317.658789][ T253] __sys_sendmsg+0xcd/0x170 [ 6317.658789][ T253] do_syscall_64+0xc6/0x1e0 [ 6317.658789][ T253] [ 6317.661008][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6317.661008][ T253] netdev_get_by_index+0x5e/0x80 [ 6317.661008][ T253] fib6_nh_init+0x3d8/0x1580 [ 6317.661008][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6317.661008][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6317.661008][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6317.661008][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6317.661008][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6317.661008][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6317.661008][ T253] addrconf_dad_begin+0x310/0x670 [ 6317.661008][ T253] addrconf_dad_work+0x10b/0xab0 [ 6317.661008][ T253] process_one_work+0x84d/0x18a0 [ 6317.661008][ T253] worker_thread+0x587/0xd30 [ 6317.661008][ T253] kthread+0x28a/0x350 [ 6317.661008][ T253] ret_from_fork+0x31/0x70 [ 6317.661008][ T253] ret_from_fork_asm+0x1a/0x30 [ 6317.661008][ T253] [ 6317.663154][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6317.663154][ T253] netdev_get_by_index+0x5e/0x80 [ 6317.663154][ T253] fib6_nh_init+0x3d8/0x1580 [ 6317.663154][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6317.663154][ T253] ip6_route_add+0x1c/0x140 [ 6317.663154][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6317.663154][ T253] inet6_addr_add+0x4f8/0xa40 [ 6317.663154][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6317.663154][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6317.663154][ T253] netlink_rcv_skb+0x130/0x360 [ 6317.663154][ T253] netlink_unicast+0x449/0x710 [ 6317.663154][ T253] netlink_sendmsg+0x723/0xbe0 [ 6317.663154][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6317.663154][ T253] ___sys_sendmsg+0xee/0x170 [ 6317.663154][ T253] __sys_sendmsg+0xcd/0x170 [ 6317.663154][ T253] do_syscall_64+0xc6/0x1e0 [ 6317.663154][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6317.663154][ T253] [ 6317.665396][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6317.665396][ T253] netdev_get_by_index+0x5e/0x80 [ 6317.665396][ T253] fib6_nh_init+0x3d8/0x1580 [ 6317.665396][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6317.665396][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6317.665396][ T253] ipv6_add_addr+0x411/0x2000 [ 6317.665396][ T253] inet6_addr_add+0x30e/0xa40 [ 6317.665396][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6317.665396][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6317.665396][ T253] netlink_rcv_skb+0x130/0x360 [ 6317.665396][ T253] netlink_unicast+0x449/0x710 [ 6317.665396][ T253] netlink_sendmsg+0x723/0xbe0 [ 6317.665396][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6317.665396][ T253] ___sys_sendmsg+0xee/0x170 [ 6317.665396][ T253] __sys_sendmsg+0xcd/0x170 [ 6317.665396][ T253] do_syscall_64+0xc6/0x1e0 [ 6317.665396][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6317.665396][ T253] [ 6317.668026][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6317.668026][ T253] netdev_get_by_index+0x5e/0x80 [ 6317.668026][ T253] fib6_nh_init+0x3d8/0x1580 [ 6317.668026][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6317.668026][ T253] ip6_route_add+0x1c/0x140 [ 6317.668026][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6317.668026][ T253] addrconf_add_dev+0xe2/0x170 [ 6317.668026][ T253] inet6_addr_add+0x12f/0xa40 [ 6317.668026][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6317.668026][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6317.668026][ T253] netlink_rcv_skb+0x130/0x360 [ 6317.668026][ T253] netlink_unicast+0x449/0x710 [ 6317.668026][ T253] netlink_sendmsg+0x723/0xbe0 [ 6317.668026][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6317.668026][ T253] ___sys_sendmsg+0xee/0x170 [ 6317.668026][ T253] __sys_sendmsg+0xcd/0x170 [ 6317.668026][ T253] do_syscall_64+0xc6/0x1e0 [ 6317.668026][ T253] [ 6317.670255][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6317.670255][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6317.670255][ T253] ipv6_find_idev+0x102/0x170 [ 6317.670255][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6317.670255][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6317.670255][ T253] netlink_rcv_skb+0x130/0x360 [ 6317.670255][ T253] netlink_unicast+0x449/0x710 [ 6317.670255][ T253] netlink_sendmsg+0x723/0xbe0 [ 6317.670255][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6317.670255][ T253] ___sys_sendmsg+0xee/0x170 [ 6317.670255][ T253] __sys_sendmsg+0xcd/0x170 [ 6317.670255][ T253] do_syscall_64+0xc6/0x1e0 [ 6317.670255][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6317.670255][ T253] [ 6317.671977][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6317.671977][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6317.671977][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6317.671977][ T253] ipv6_find_idev+0x102/0x170 [ 6317.671977][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6317.671977][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6317.671977][ T253] netlink_rcv_skb+0x130/0x360 [ 6317.671977][ T253] netlink_unicast+0x449/0x710 [ 6317.671977][ T253] netlink_sendmsg+0x723/0xbe0 [ 6317.671977][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6317.671977][ T253] ___sys_sendmsg+0xee/0x170 [ 6317.671977][ T253] __sys_sendmsg+0xcd/0x170 [ 6317.671977][ T253] do_syscall_64+0xc6/0x1e0 [ 6317.671977][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6317.671977][ T253] [ 6327.914317][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6327.914799][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6327.914799][ T253] dst_init+0x84/0x4a0 [ 6327.914799][ T253] dst_alloc+0x97/0x150 [ 6327.914799][ T253] ip6_dst_alloc+0x23/0x90 [ 6327.914799][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6327.914799][ T253] ip6_pol_route+0x56f/0x840 [ 6327.914799][ T253] fib6_rule_lookup+0x334/0x630 [ 6327.914799][ T253] ip6_route_output_flags+0x259/0x480 [ 6327.914799][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6327.914799][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6327.914799][ T253] netlink_rcv_skb+0x130/0x360 [ 6327.914799][ T253] netlink_unicast+0x449/0x710 [ 6327.914799][ T253] netlink_sendmsg+0x723/0xbe0 [ 6327.914799][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6327.914799][ T253] ___sys_sendmsg+0xee/0x170 [ 6327.914799][ T253] __sys_sendmsg+0xcd/0x170 [ 6327.914799][ T253] do_syscall_64+0xc6/0x1e0 [ 6327.914799][ T253] [ 6327.916997][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6327.916997][ T253] netdev_get_by_index+0x5e/0x80 [ 6327.916997][ T253] fib6_nh_init+0x3d8/0x1580 [ 6327.916997][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6327.916997][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6327.916997][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6327.916997][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6327.916997][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6327.916997][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6327.916997][ T253] addrconf_dad_begin+0x310/0x670 [ 6327.916997][ T253] addrconf_dad_work+0x10b/0xab0 [ 6327.916997][ T253] process_one_work+0x84d/0x18a0 [ 6327.916997][ T253] worker_thread+0x587/0xd30 [ 6327.916997][ T253] kthread+0x28a/0x350 [ 6327.916997][ T253] ret_from_fork+0x31/0x70 [ 6327.916997][ T253] ret_from_fork_asm+0x1a/0x30 [ 6327.916997][ T253] [ 6327.919139][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6327.919139][ T253] netdev_get_by_index+0x5e/0x80 [ 6327.919139][ T253] fib6_nh_init+0x3d8/0x1580 [ 6327.919139][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6327.919139][ T253] ip6_route_add+0x1c/0x140 [ 6327.919139][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6327.919139][ T253] inet6_addr_add+0x4f8/0xa40 [ 6327.919139][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6327.919139][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6327.919139][ T253] netlink_rcv_skb+0x130/0x360 [ 6327.919139][ T253] netlink_unicast+0x449/0x710 [ 6327.919139][ T253] netlink_sendmsg+0x723/0xbe0 [ 6327.919139][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6327.919139][ T253] ___sys_sendmsg+0xee/0x170 [ 6327.919139][ T253] __sys_sendmsg+0xcd/0x170 [ 6327.919139][ T253] do_syscall_64+0xc6/0x1e0 [ 6327.919139][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6327.919139][ T253] [ 6327.921389][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6327.921389][ T253] netdev_get_by_index+0x5e/0x80 [ 6327.921389][ T253] fib6_nh_init+0x3d8/0x1580 [ 6327.921389][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6327.921389][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6327.921389][ T253] ipv6_add_addr+0x411/0x2000 [ 6327.921389][ T253] inet6_addr_add+0x30e/0xa40 [ 6327.921389][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6327.921389][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6327.921389][ T253] netlink_rcv_skb+0x130/0x360 [ 6327.921389][ T253] netlink_unicast+0x449/0x710 [ 6327.921389][ T253] netlink_sendmsg+0x723/0xbe0 [ 6327.921389][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6327.921389][ T253] ___sys_sendmsg+0xee/0x170 [ 6327.921389][ T253] __sys_sendmsg+0xcd/0x170 [ 6327.921389][ T253] do_syscall_64+0xc6/0x1e0 [ 6327.921389][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6327.921389][ T253] [ 6327.923630][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6327.923630][ T253] netdev_get_by_index+0x5e/0x80 [ 6327.923630][ T253] fib6_nh_init+0x3d8/0x1580 [ 6327.923630][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6327.923630][ T253] ip6_route_add+0x1c/0x140 [ 6327.923630][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6327.923630][ T253] addrconf_add_dev+0xe2/0x170 [ 6327.923630][ T253] inet6_addr_add+0x12f/0xa40 [ 6327.923630][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6327.923630][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6327.923630][ T253] netlink_rcv_skb+0x130/0x360 [ 6327.923630][ T253] netlink_unicast+0x449/0x710 [ 6327.923630][ T253] netlink_sendmsg+0x723/0xbe0 [ 6327.923630][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6327.923630][ T253] ___sys_sendmsg+0xee/0x170 [ 6327.923630][ T253] __sys_sendmsg+0xcd/0x170 [ 6327.923630][ T253] do_syscall_64+0xc6/0x1e0 [ 6327.923630][ T253] [ 6327.925829][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6327.925829][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6327.925829][ T253] ipv6_find_idev+0x102/0x170 [ 6327.925829][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6327.925829][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6327.925829][ T253] netlink_rcv_skb+0x130/0x360 [ 6327.925829][ T253] netlink_unicast+0x449/0x710 [ 6327.925829][ T253] netlink_sendmsg+0x723/0xbe0 [ 6327.925829][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6327.925829][ T253] ___sys_sendmsg+0xee/0x170 [ 6327.925829][ T253] __sys_sendmsg+0xcd/0x170 [ 6327.925829][ T253] do_syscall_64+0xc6/0x1e0 [ 6327.925829][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6327.925829][ T253] [ 6327.927557][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6327.927557][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6327.927557][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6327.927557][ T253] ipv6_find_idev+0x102/0x170 [ 6327.927557][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6327.927557][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6327.927557][ T253] netlink_rcv_skb+0x130/0x360 [ 6327.927557][ T253] netlink_unicast+0x449/0x710 [ 6327.927557][ T253] netlink_sendmsg+0x723/0xbe0 [ 6327.927557][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6327.927557][ T253] ___sys_sendmsg+0xee/0x170 [ 6327.927557][ T253] __sys_sendmsg+0xcd/0x170 [ 6327.927557][ T253] do_syscall_64+0xc6/0x1e0 [ 6327.927557][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6327.927557][ T253] [ 6338.170356][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6338.170852][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6338.170852][ T253] dst_init+0x84/0x4a0 [ 6338.170852][ T253] dst_alloc+0x97/0x150 [ 6338.170852][ T253] ip6_dst_alloc+0x23/0x90 [ 6338.170852][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6338.170852][ T253] ip6_pol_route+0x56f/0x840 [ 6338.170852][ T253] fib6_rule_lookup+0x334/0x630 [ 6338.170852][ T253] ip6_route_output_flags+0x259/0x480 [ 6338.170852][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6338.170852][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6338.170852][ T253] netlink_rcv_skb+0x130/0x360 [ 6338.170852][ T253] netlink_unicast+0x449/0x710 [ 6338.170852][ T253] netlink_sendmsg+0x723/0xbe0 [ 6338.170852][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6338.170852][ T253] ___sys_sendmsg+0xee/0x170 [ 6338.170852][ T253] __sys_sendmsg+0xcd/0x170 [ 6338.170852][ T253] do_syscall_64+0xc6/0x1e0 [ 6338.170852][ T253] [ 6338.173051][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6338.173051][ T253] netdev_get_by_index+0x5e/0x80 [ 6338.173051][ T253] fib6_nh_init+0x3d8/0x1580 [ 6338.173051][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6338.173051][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6338.173051][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6338.173051][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6338.173051][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6338.173051][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6338.173051][ T253] addrconf_dad_begin+0x310/0x670 [ 6338.173051][ T253] addrconf_dad_work+0x10b/0xab0 [ 6338.173051][ T253] process_one_work+0x84d/0x18a0 [ 6338.173051][ T253] worker_thread+0x587/0xd30 [ 6338.173051][ T253] kthread+0x28a/0x350 [ 6338.173051][ T253] ret_from_fork+0x31/0x70 [ 6338.173051][ T253] ret_from_fork_asm+0x1a/0x30 [ 6338.173051][ T253] [ 6338.175207][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6338.175207][ T253] netdev_get_by_index+0x5e/0x80 [ 6338.175207][ T253] fib6_nh_init+0x3d8/0x1580 [ 6338.175207][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6338.175207][ T253] ip6_route_add+0x1c/0x140 [ 6338.175207][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6338.175207][ T253] inet6_addr_add+0x4f8/0xa40 [ 6338.175207][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6338.175207][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6338.175207][ T253] netlink_rcv_skb+0x130/0x360 [ 6338.175207][ T253] netlink_unicast+0x449/0x710 [ 6338.175207][ T253] netlink_sendmsg+0x723/0xbe0 [ 6338.175207][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6338.175207][ T253] ___sys_sendmsg+0xee/0x170 [ 6338.175207][ T253] __sys_sendmsg+0xcd/0x170 [ 6338.175207][ T253] do_syscall_64+0xc6/0x1e0 [ 6338.175207][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6338.175207][ T253] [ 6338.177450][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6338.177450][ T253] netdev_get_by_index+0x5e/0x80 [ 6338.177450][ T253] fib6_nh_init+0x3d8/0x1580 [ 6338.177450][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6338.177450][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6338.177450][ T253] ipv6_add_addr+0x411/0x2000 [ 6338.177450][ T253] inet6_addr_add+0x30e/0xa40 [ 6338.177450][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6338.177450][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6338.177450][ T253] netlink_rcv_skb+0x130/0x360 [ 6338.177450][ T253] netlink_unicast+0x449/0x710 [ 6338.177450][ T253] netlink_sendmsg+0x723/0xbe0 [ 6338.177450][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6338.177450][ T253] ___sys_sendmsg+0xee/0x170 [ 6338.177450][ T253] __sys_sendmsg+0xcd/0x170 [ 6338.177450][ T253] do_syscall_64+0xc6/0x1e0 [ 6338.177450][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6338.177450][ T253] [ 6338.179697][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6338.179697][ T253] netdev_get_by_index+0x5e/0x80 [ 6338.179697][ T253] fib6_nh_init+0x3d8/0x1580 [ 6338.179697][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6338.179697][ T253] ip6_route_add+0x1c/0x140 [ 6338.179697][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6338.179697][ T253] addrconf_add_dev+0xe2/0x170 [ 6338.179697][ T253] inet6_addr_add+0x12f/0xa40 [ 6338.179697][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6338.179697][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6338.179697][ T253] netlink_rcv_skb+0x130/0x360 [ 6338.179697][ T253] netlink_unicast+0x449/0x710 [ 6338.179697][ T253] netlink_sendmsg+0x723/0xbe0 [ 6338.179697][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6338.179697][ T253] ___sys_sendmsg+0xee/0x170 [ 6338.179697][ T253] __sys_sendmsg+0xcd/0x170 [ 6338.179697][ T253] do_syscall_64+0xc6/0x1e0 [ 6338.179697][ T253] [ 6338.181921][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6338.181921][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6338.181921][ T253] ipv6_find_idev+0x102/0x170 [ 6338.181921][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6338.181921][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6338.181921][ T253] netlink_rcv_skb+0x130/0x360 [ 6338.181921][ T253] netlink_unicast+0x449/0x710 [ 6338.181921][ T253] netlink_sendmsg+0x723/0xbe0 [ 6338.181921][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6338.181921][ T253] ___sys_sendmsg+0xee/0x170 [ 6338.181921][ T253] __sys_sendmsg+0xcd/0x170 [ 6338.181921][ T253] do_syscall_64+0xc6/0x1e0 [ 6338.181921][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6338.181921][ T253] [ 6338.183643][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6338.183643][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6338.183643][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6338.183643][ T253] ipv6_find_idev+0x102/0x170 [ 6338.183643][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6338.183643][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6338.183643][ T253] netlink_rcv_skb+0x130/0x360 [ 6338.183643][ T253] netlink_unicast+0x449/0x710 [ 6338.183643][ T253] netlink_sendmsg+0x723/0xbe0 [ 6338.183643][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6338.183643][ T253] ___sys_sendmsg+0xee/0x170 [ 6338.183643][ T253] __sys_sendmsg+0xcd/0x170 [ 6338.183643][ T253] do_syscall_64+0xc6/0x1e0 [ 6338.183643][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6338.183643][ T253] [ 6348.426332][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6348.426848][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6348.426848][ T253] dst_init+0x84/0x4a0 [ 6348.426848][ T253] dst_alloc+0x97/0x150 [ 6348.426848][ T253] ip6_dst_alloc+0x23/0x90 [ 6348.426848][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6348.426848][ T253] ip6_pol_route+0x56f/0x840 [ 6348.426848][ T253] fib6_rule_lookup+0x334/0x630 [ 6348.426848][ T253] ip6_route_output_flags+0x259/0x480 [ 6348.426848][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6348.426848][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6348.426848][ T253] netlink_rcv_skb+0x130/0x360 [ 6348.426848][ T253] netlink_unicast+0x449/0x710 [ 6348.426848][ T253] netlink_sendmsg+0x723/0xbe0 [ 6348.426848][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6348.426848][ T253] ___sys_sendmsg+0xee/0x170 [ 6348.426848][ T253] __sys_sendmsg+0xcd/0x170 [ 6348.426848][ T253] do_syscall_64+0xc6/0x1e0 [ 6348.426848][ T253] [ 6348.429050][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6348.429050][ T253] netdev_get_by_index+0x5e/0x80 [ 6348.429050][ T253] fib6_nh_init+0x3d8/0x1580 [ 6348.429050][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6348.429050][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6348.429050][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6348.429050][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6348.429050][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6348.429050][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6348.429050][ T253] addrconf_dad_begin+0x310/0x670 [ 6348.429050][ T253] addrconf_dad_work+0x10b/0xab0 [ 6348.429050][ T253] process_one_work+0x84d/0x18a0 [ 6348.429050][ T253] worker_thread+0x587/0xd30 [ 6348.429050][ T253] kthread+0x28a/0x350 [ 6348.429050][ T253] ret_from_fork+0x31/0x70 [ 6348.429050][ T253] ret_from_fork_asm+0x1a/0x30 [ 6348.429050][ T253] [ 6348.431200][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6348.431200][ T253] netdev_get_by_index+0x5e/0x80 [ 6348.431200][ T253] fib6_nh_init+0x3d8/0x1580 [ 6348.431200][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6348.431200][ T253] ip6_route_add+0x1c/0x140 [ 6348.431200][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6348.431200][ T253] inet6_addr_add+0x4f8/0xa40 [ 6348.431200][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6348.431200][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6348.431200][ T253] netlink_rcv_skb+0x130/0x360 [ 6348.431200][ T253] netlink_unicast+0x449/0x710 [ 6348.431200][ T253] netlink_sendmsg+0x723/0xbe0 [ 6348.431200][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6348.431200][ T253] ___sys_sendmsg+0xee/0x170 [ 6348.431200][ T253] __sys_sendmsg+0xcd/0x170 [ 6348.431200][ T253] do_syscall_64+0xc6/0x1e0 [ 6348.431200][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6348.431200][ T253] [ 6348.433442][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6348.433442][ T253] netdev_get_by_index+0x5e/0x80 [ 6348.433442][ T253] fib6_nh_init+0x3d8/0x1580 [ 6348.433442][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6348.433442][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6348.433442][ T253] ipv6_add_addr+0x411/0x2000 [ 6348.433442][ T253] inet6_addr_add+0x30e/0xa40 [ 6348.433442][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6348.433442][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6348.433442][ T253] netlink_rcv_skb+0x130/0x360 [ 6348.433442][ T253] netlink_unicast+0x449/0x710 [ 6348.433442][ T253] netlink_sendmsg+0x723/0xbe0 [ 6348.433442][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6348.433442][ T253] ___sys_sendmsg+0xee/0x170 [ 6348.433442][ T253] __sys_sendmsg+0xcd/0x170 [ 6348.433442][ T253] do_syscall_64+0xc6/0x1e0 [ 6348.433442][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6348.433442][ T253] [ 6348.435685][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6348.435685][ T253] netdev_get_by_index+0x5e/0x80 [ 6348.435685][ T253] fib6_nh_init+0x3d8/0x1580 [ 6348.435685][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6348.435685][ T253] ip6_route_add+0x1c/0x140 [ 6348.435685][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6348.435685][ T253] addrconf_add_dev+0xe2/0x170 [ 6348.435685][ T253] inet6_addr_add+0x12f/0xa40 [ 6348.435685][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6348.435685][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6348.435685][ T253] netlink_rcv_skb+0x130/0x360 [ 6348.435685][ T253] netlink_unicast+0x449/0x710 [ 6348.435685][ T253] netlink_sendmsg+0x723/0xbe0 [ 6348.435685][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6348.435685][ T253] ___sys_sendmsg+0xee/0x170 [ 6348.435685][ T253] __sys_sendmsg+0xcd/0x170 [ 6348.435685][ T253] do_syscall_64+0xc6/0x1e0 [ 6348.435685][ T253] [ 6348.437893][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6348.437893][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6348.437893][ T253] ipv6_find_idev+0x102/0x170 [ 6348.437893][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6348.437893][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6348.437893][ T253] netlink_rcv_skb+0x130/0x360 [ 6348.437893][ T253] netlink_unicast+0x449/0x710 [ 6348.437893][ T253] netlink_sendmsg+0x723/0xbe0 [ 6348.437893][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6348.437893][ T253] ___sys_sendmsg+0xee/0x170 [ 6348.437893][ T253] __sys_sendmsg+0xcd/0x170 [ 6348.437893][ T253] do_syscall_64+0xc6/0x1e0 [ 6348.437893][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6348.437893][ T253] [ 6348.439620][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6348.439620][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6348.439620][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6348.439620][ T253] ipv6_find_idev+0x102/0x170 [ 6348.439620][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6348.439620][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6348.439620][ T253] netlink_rcv_skb+0x130/0x360 [ 6348.439620][ T253] netlink_unicast+0x449/0x710 [ 6348.439620][ T253] netlink_sendmsg+0x723/0xbe0 [ 6348.439620][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6348.439620][ T253] ___sys_sendmsg+0xee/0x170 [ 6348.439620][ T253] __sys_sendmsg+0xcd/0x170 [ 6348.439620][ T253] do_syscall_64+0xc6/0x1e0 [ 6348.439620][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6348.439620][ T253] [ 6358.682326][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6358.682802][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6358.682802][ T253] dst_init+0x84/0x4a0 [ 6358.682802][ T253] dst_alloc+0x97/0x150 [ 6358.682802][ T253] ip6_dst_alloc+0x23/0x90 [ 6358.682802][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6358.682802][ T253] ip6_pol_route+0x56f/0x840 [ 6358.682802][ T253] fib6_rule_lookup+0x334/0x630 [ 6358.682802][ T253] ip6_route_output_flags+0x259/0x480 [ 6358.682802][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6358.682802][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6358.682802][ T253] netlink_rcv_skb+0x130/0x360 [ 6358.682802][ T253] netlink_unicast+0x449/0x710 [ 6358.682802][ T253] netlink_sendmsg+0x723/0xbe0 [ 6358.682802][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6358.682802][ T253] ___sys_sendmsg+0xee/0x170 [ 6358.682802][ T253] __sys_sendmsg+0xcd/0x170 [ 6358.682802][ T253] do_syscall_64+0xc6/0x1e0 [ 6358.682802][ T253] [ 6358.685024][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6358.685024][ T253] netdev_get_by_index+0x5e/0x80 [ 6358.685024][ T253] fib6_nh_init+0x3d8/0x1580 [ 6358.685024][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6358.685024][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6358.685024][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6358.685024][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6358.685024][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6358.685024][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6358.685024][ T253] addrconf_dad_begin+0x310/0x670 [ 6358.685024][ T253] addrconf_dad_work+0x10b/0xab0 [ 6358.685024][ T253] process_one_work+0x84d/0x18a0 [ 6358.685024][ T253] worker_thread+0x587/0xd30 [ 6358.685024][ T253] kthread+0x28a/0x350 [ 6358.685024][ T253] ret_from_fork+0x31/0x70 [ 6358.685024][ T253] ret_from_fork_asm+0x1a/0x30 [ 6358.685024][ T253] [ 6358.687188][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6358.687188][ T253] netdev_get_by_index+0x5e/0x80 [ 6358.687188][ T253] fib6_nh_init+0x3d8/0x1580 [ 6358.687188][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6358.687188][ T253] ip6_route_add+0x1c/0x140 [ 6358.687188][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6358.687188][ T253] inet6_addr_add+0x4f8/0xa40 [ 6358.687188][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6358.687188][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6358.687188][ T253] netlink_rcv_skb+0x130/0x360 [ 6358.687188][ T253] netlink_unicast+0x449/0x710 [ 6358.687188][ T253] netlink_sendmsg+0x723/0xbe0 [ 6358.687188][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6358.687188][ T253] ___sys_sendmsg+0xee/0x170 [ 6358.687188][ T253] __sys_sendmsg+0xcd/0x170 [ 6358.687188][ T253] do_syscall_64+0xc6/0x1e0 [ 6358.687188][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6358.687188][ T253] [ 6358.689425][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6358.689425][ T253] netdev_get_by_index+0x5e/0x80 [ 6358.689425][ T253] fib6_nh_init+0x3d8/0x1580 [ 6358.689425][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6358.689425][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6358.689425][ T253] ipv6_add_addr+0x411/0x2000 [ 6358.689425][ T253] inet6_addr_add+0x30e/0xa40 [ 6358.689425][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6358.689425][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6358.689425][ T253] netlink_rcv_skb+0x130/0x360 [ 6358.689425][ T253] netlink_unicast+0x449/0x710 [ 6358.689425][ T253] netlink_sendmsg+0x723/0xbe0 [ 6358.689425][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6358.689425][ T253] ___sys_sendmsg+0xee/0x170 [ 6358.689425][ T253] __sys_sendmsg+0xcd/0x170 [ 6358.689425][ T253] do_syscall_64+0xc6/0x1e0 [ 6358.689425][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6358.689425][ T253] [ 6358.691679][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6358.691679][ T253] netdev_get_by_index+0x5e/0x80 [ 6358.691679][ T253] fib6_nh_init+0x3d8/0x1580 [ 6358.691679][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6358.691679][ T253] ip6_route_add+0x1c/0x140 [ 6358.691679][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6358.691679][ T253] addrconf_add_dev+0xe2/0x170 [ 6358.691679][ T253] inet6_addr_add+0x12f/0xa40 [ 6358.691679][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6358.691679][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6358.691679][ T253] netlink_rcv_skb+0x130/0x360 [ 6358.691679][ T253] netlink_unicast+0x449/0x710 [ 6358.691679][ T253] netlink_sendmsg+0x723/0xbe0 [ 6358.691679][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6358.691679][ T253] ___sys_sendmsg+0xee/0x170 [ 6358.691679][ T253] __sys_sendmsg+0xcd/0x170 [ 6358.691679][ T253] do_syscall_64+0xc6/0x1e0 [ 6358.691679][ T253] [ 6358.693821][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6358.693821][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6358.693821][ T253] ipv6_find_idev+0x102/0x170 [ 6358.693821][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6358.693821][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6358.693821][ T253] netlink_rcv_skb+0x130/0x360 [ 6358.693821][ T253] netlink_unicast+0x449/0x710 [ 6358.693821][ T253] netlink_sendmsg+0x723/0xbe0 [ 6358.693821][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6358.693821][ T253] ___sys_sendmsg+0xee/0x170 [ 6358.693821][ T253] __sys_sendmsg+0xcd/0x170 [ 6358.693821][ T253] do_syscall_64+0xc6/0x1e0 [ 6358.693821][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6358.693821][ T253] [ 6358.695558][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6358.695558][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6358.695558][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6358.695558][ T253] ipv6_find_idev+0x102/0x170 [ 6358.695558][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6358.695558][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6358.695558][ T253] netlink_rcv_skb+0x130/0x360 [ 6358.695558][ T253] netlink_unicast+0x449/0x710 [ 6358.695558][ T253] netlink_sendmsg+0x723/0xbe0 [ 6358.695558][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6358.695558][ T253] ___sys_sendmsg+0xee/0x170 [ 6358.695558][ T253] __sys_sendmsg+0xcd/0x170 [ 6358.695558][ T253] do_syscall_64+0xc6/0x1e0 [ 6358.695558][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6358.695558][ T253] [ 6368.938316][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6368.938798][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6368.938798][ T253] dst_init+0x84/0x4a0 [ 6368.938798][ T253] dst_alloc+0x97/0x150 [ 6368.938798][ T253] ip6_dst_alloc+0x23/0x90 [ 6368.938798][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6368.938798][ T253] ip6_pol_route+0x56f/0x840 [ 6368.938798][ T253] fib6_rule_lookup+0x334/0x630 [ 6368.938798][ T253] ip6_route_output_flags+0x259/0x480 [ 6368.938798][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6368.938798][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6368.938798][ T253] netlink_rcv_skb+0x130/0x360 [ 6368.938798][ T253] netlink_unicast+0x449/0x710 [ 6368.938798][ T253] netlink_sendmsg+0x723/0xbe0 [ 6368.938798][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6368.938798][ T253] ___sys_sendmsg+0xee/0x170 [ 6368.938798][ T253] __sys_sendmsg+0xcd/0x170 [ 6368.938798][ T253] do_syscall_64+0xc6/0x1e0 [ 6368.938798][ T253] [ 6368.941030][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6368.941030][ T253] netdev_get_by_index+0x5e/0x80 [ 6368.941030][ T253] fib6_nh_init+0x3d8/0x1580 [ 6368.941030][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6368.941030][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6368.941030][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6368.941030][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6368.941030][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6368.941030][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6368.941030][ T253] addrconf_dad_begin+0x310/0x670 [ 6368.941030][ T253] addrconf_dad_work+0x10b/0xab0 [ 6368.941030][ T253] process_one_work+0x84d/0x18a0 [ 6368.941030][ T253] worker_thread+0x587/0xd30 [ 6368.941030][ T253] kthread+0x28a/0x350 [ 6368.941030][ T253] ret_from_fork+0x31/0x70 [ 6368.941030][ T253] ret_from_fork_asm+0x1a/0x30 [ 6368.941030][ T253] [ 6368.943155][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6368.943155][ T253] netdev_get_by_index+0x5e/0x80 [ 6368.943155][ T253] fib6_nh_init+0x3d8/0x1580 [ 6368.943155][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6368.943155][ T253] ip6_route_add+0x1c/0x140 [ 6368.943155][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6368.943155][ T253] inet6_addr_add+0x4f8/0xa40 [ 6368.943155][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6368.943155][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6368.943155][ T253] netlink_rcv_skb+0x130/0x360 [ 6368.943155][ T253] netlink_unicast+0x449/0x710 [ 6368.943155][ T253] netlink_sendmsg+0x723/0xbe0 [ 6368.943155][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6368.943155][ T253] ___sys_sendmsg+0xee/0x170 [ 6368.943155][ T253] __sys_sendmsg+0xcd/0x170 [ 6368.943155][ T253] do_syscall_64+0xc6/0x1e0 [ 6368.943155][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6368.943155][ T253] [ 6368.945411][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6368.945411][ T253] netdev_get_by_index+0x5e/0x80 [ 6368.945411][ T253] fib6_nh_init+0x3d8/0x1580 [ 6368.945411][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6368.945411][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6368.945411][ T253] ipv6_add_addr+0x411/0x2000 [ 6368.945411][ T253] inet6_addr_add+0x30e/0xa40 [ 6368.945411][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6368.945411][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6368.945411][ T253] netlink_rcv_skb+0x130/0x360 [ 6368.945411][ T253] netlink_unicast+0x449/0x710 [ 6368.945411][ T253] netlink_sendmsg+0x723/0xbe0 [ 6368.945411][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6368.945411][ T253] ___sys_sendmsg+0xee/0x170 [ 6368.945411][ T253] __sys_sendmsg+0xcd/0x170 [ 6368.945411][ T253] do_syscall_64+0xc6/0x1e0 [ 6368.945411][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6368.945411][ T253] [ 6368.947598][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6368.947598][ T253] netdev_get_by_index+0x5e/0x80 [ 6368.947598][ T253] fib6_nh_init+0x3d8/0x1580 [ 6368.947598][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6368.947598][ T253] ip6_route_add+0x1c/0x140 [ 6368.947598][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6368.947598][ T253] addrconf_add_dev+0xe2/0x170 [ 6368.947598][ T253] inet6_addr_add+0x12f/0xa40 [ 6368.947598][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6368.947598][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6368.947598][ T253] netlink_rcv_skb+0x130/0x360 [ 6368.947598][ T253] netlink_unicast+0x449/0x710 [ 6368.947598][ T253] netlink_sendmsg+0x723/0xbe0 [ 6368.947598][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6368.947598][ T253] ___sys_sendmsg+0xee/0x170 [ 6368.947598][ T253] __sys_sendmsg+0xcd/0x170 [ 6368.947598][ T253] do_syscall_64+0xc6/0x1e0 [ 6368.947598][ T253] [ 6368.949798][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6368.949798][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6368.949798][ T253] ipv6_find_idev+0x102/0x170 [ 6368.949798][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6368.949798][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6368.949798][ T253] netlink_rcv_skb+0x130/0x360 [ 6368.949798][ T253] netlink_unicast+0x449/0x710 [ 6368.949798][ T253] netlink_sendmsg+0x723/0xbe0 [ 6368.949798][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6368.949798][ T253] ___sys_sendmsg+0xee/0x170 [ 6368.949798][ T253] __sys_sendmsg+0xcd/0x170 [ 6368.949798][ T253] do_syscall_64+0xc6/0x1e0 [ 6368.949798][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6368.949798][ T253] [ 6368.951526][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6368.951526][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6368.951526][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6368.951526][ T253] ipv6_find_idev+0x102/0x170 [ 6368.951526][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6368.951526][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6368.951526][ T253] netlink_rcv_skb+0x130/0x360 [ 6368.951526][ T253] netlink_unicast+0x449/0x710 [ 6368.951526][ T253] netlink_sendmsg+0x723/0xbe0 [ 6368.951526][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6368.951526][ T253] ___sys_sendmsg+0xee/0x170 [ 6368.951526][ T253] __sys_sendmsg+0xcd/0x170 [ 6368.951526][ T253] do_syscall_64+0xc6/0x1e0 [ 6368.951526][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6368.951526][ T253] [ 6379.010246][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6379.010729][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6379.010729][ T253] dst_init+0x84/0x4a0 [ 6379.010729][ T253] dst_alloc+0x97/0x150 [ 6379.010729][ T253] ip6_dst_alloc+0x23/0x90 [ 6379.010729][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6379.010729][ T253] ip6_pol_route+0x56f/0x840 [ 6379.010729][ T253] fib6_rule_lookup+0x334/0x630 [ 6379.010729][ T253] ip6_route_output_flags+0x259/0x480 [ 6379.010729][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6379.010729][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6379.010729][ T253] netlink_rcv_skb+0x130/0x360 [ 6379.010729][ T253] netlink_unicast+0x449/0x710 [ 6379.010729][ T253] netlink_sendmsg+0x723/0xbe0 [ 6379.010729][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6379.010729][ T253] ___sys_sendmsg+0xee/0x170 [ 6379.010729][ T253] __sys_sendmsg+0xcd/0x170 [ 6379.010729][ T253] do_syscall_64+0xc6/0x1e0 [ 6379.010729][ T253] [ 6379.012930][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6379.012930][ T253] netdev_get_by_index+0x5e/0x80 [ 6379.012930][ T253] fib6_nh_init+0x3d8/0x1580 [ 6379.012930][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6379.012930][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6379.012930][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6379.012930][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6379.012930][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6379.012930][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6379.012930][ T253] addrconf_dad_begin+0x310/0x670 [ 6379.012930][ T253] addrconf_dad_work+0x10b/0xab0 [ 6379.012930][ T253] process_one_work+0x84d/0x18a0 [ 6379.012930][ T253] worker_thread+0x587/0xd30 [ 6379.012930][ T253] kthread+0x28a/0x350 [ 6379.012930][ T253] ret_from_fork+0x31/0x70 [ 6379.012930][ T253] ret_from_fork_asm+0x1a/0x30 [ 6379.012930][ T253] [ 6379.015077][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6379.015077][ T253] netdev_get_by_index+0x5e/0x80 [ 6379.015077][ T253] fib6_nh_init+0x3d8/0x1580 [ 6379.015077][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6379.015077][ T253] ip6_route_add+0x1c/0x140 [ 6379.015077][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6379.015077][ T253] inet6_addr_add+0x4f8/0xa40 [ 6379.015077][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6379.015077][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6379.015077][ T253] netlink_rcv_skb+0x130/0x360 [ 6379.015077][ T253] netlink_unicast+0x449/0x710 [ 6379.015077][ T253] netlink_sendmsg+0x723/0xbe0 [ 6379.015077][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6379.015077][ T253] ___sys_sendmsg+0xee/0x170 [ 6379.015077][ T253] __sys_sendmsg+0xcd/0x170 [ 6379.015077][ T253] do_syscall_64+0xc6/0x1e0 [ 6379.015077][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6379.015077][ T253] [ 6379.017339][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6379.017339][ T253] netdev_get_by_index+0x5e/0x80 [ 6379.017339][ T253] fib6_nh_init+0x3d8/0x1580 [ 6379.017339][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6379.017339][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6379.017339][ T253] ipv6_add_addr+0x411/0x2000 [ 6379.017339][ T253] inet6_addr_add+0x30e/0xa40 [ 6379.017339][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6379.017339][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6379.017339][ T253] netlink_rcv_skb+0x130/0x360 [ 6379.017339][ T253] netlink_unicast+0x449/0x710 [ 6379.017339][ T253] netlink_sendmsg+0x723/0xbe0 [ 6379.017339][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6379.017339][ T253] ___sys_sendmsg+0xee/0x170 [ 6379.017339][ T253] __sys_sendmsg+0xcd/0x170 [ 6379.017339][ T253] do_syscall_64+0xc6/0x1e0 [ 6379.017339][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6379.017339][ T253] [ 6379.019586][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6379.019586][ T253] netdev_get_by_index+0x5e/0x80 [ 6379.019586][ T253] fib6_nh_init+0x3d8/0x1580 [ 6379.019586][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6379.019586][ T253] ip6_route_add+0x1c/0x140 [ 6379.019586][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6379.019586][ T253] addrconf_add_dev+0xe2/0x170 [ 6379.019586][ T253] inet6_addr_add+0x12f/0xa40 [ 6379.019586][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6379.019586][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6379.019586][ T253] netlink_rcv_skb+0x130/0x360 [ 6379.019586][ T253] netlink_unicast+0x449/0x710 [ 6379.019586][ T253] netlink_sendmsg+0x723/0xbe0 [ 6379.019586][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6379.019586][ T253] ___sys_sendmsg+0xee/0x170 [ 6379.019586][ T253] __sys_sendmsg+0xcd/0x170 [ 6379.019586][ T253] do_syscall_64+0xc6/0x1e0 [ 6379.019586][ T253] [ 6379.021821][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6379.021821][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6379.021821][ T253] ipv6_find_idev+0x102/0x170 [ 6379.021821][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6379.021821][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6379.021821][ T253] netlink_rcv_skb+0x130/0x360 [ 6379.021821][ T253] netlink_unicast+0x449/0x710 [ 6379.021821][ T253] netlink_sendmsg+0x723/0xbe0 [ 6379.021821][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6379.021821][ T253] ___sys_sendmsg+0xee/0x170 [ 6379.021821][ T253] __sys_sendmsg+0xcd/0x170 [ 6379.021821][ T253] do_syscall_64+0xc6/0x1e0 [ 6379.021821][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6379.021821][ T253] [ 6379.023648][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6379.023648][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6379.023648][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6379.023648][ T253] ipv6_find_idev+0x102/0x170 [ 6379.023648][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6379.023648][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6379.023648][ T253] netlink_rcv_skb+0x130/0x360 [ 6379.023648][ T253] netlink_unicast+0x449/0x710 [ 6379.023648][ T253] netlink_sendmsg+0x723/0xbe0 [ 6379.023648][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6379.023648][ T253] ___sys_sendmsg+0xee/0x170 [ 6379.023648][ T253] __sys_sendmsg+0xcd/0x170 [ 6379.023648][ T253] do_syscall_64+0xc6/0x1e0 [ 6379.023648][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6379.023648][ T253] [ 6389.274298][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6389.274781][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6389.274781][ T253] dst_init+0x84/0x4a0 [ 6389.274781][ T253] dst_alloc+0x97/0x150 [ 6389.274781][ T253] ip6_dst_alloc+0x23/0x90 [ 6389.274781][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6389.274781][ T253] ip6_pol_route+0x56f/0x840 [ 6389.274781][ T253] fib6_rule_lookup+0x334/0x630 [ 6389.274781][ T253] ip6_route_output_flags+0x259/0x480 [ 6389.274781][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6389.274781][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6389.274781][ T253] netlink_rcv_skb+0x130/0x360 [ 6389.274781][ T253] netlink_unicast+0x449/0x710 [ 6389.274781][ T253] netlink_sendmsg+0x723/0xbe0 [ 6389.274781][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6389.274781][ T253] ___sys_sendmsg+0xee/0x170 [ 6389.274781][ T253] __sys_sendmsg+0xcd/0x170 [ 6389.274781][ T253] do_syscall_64+0xc6/0x1e0 [ 6389.274781][ T253] [ 6389.276998][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6389.276998][ T253] netdev_get_by_index+0x5e/0x80 [ 6389.276998][ T253] fib6_nh_init+0x3d8/0x1580 [ 6389.276998][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6389.276998][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6389.276998][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6389.276998][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6389.276998][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6389.276998][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6389.276998][ T253] addrconf_dad_begin+0x310/0x670 [ 6389.276998][ T253] addrconf_dad_work+0x10b/0xab0 [ 6389.276998][ T253] process_one_work+0x84d/0x18a0 [ 6389.276998][ T253] worker_thread+0x587/0xd30 [ 6389.276998][ T253] kthread+0x28a/0x350 [ 6389.276998][ T253] ret_from_fork+0x31/0x70 [ 6389.276998][ T253] ret_from_fork_asm+0x1a/0x30 [ 6389.276998][ T253] [ 6389.279111][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6389.279111][ T253] netdev_get_by_index+0x5e/0x80 [ 6389.279111][ T253] fib6_nh_init+0x3d8/0x1580 [ 6389.279111][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6389.279111][ T253] ip6_route_add+0x1c/0x140 [ 6389.279111][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6389.279111][ T253] inet6_addr_add+0x4f8/0xa40 [ 6389.279111][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6389.279111][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6389.279111][ T253] netlink_rcv_skb+0x130/0x360 [ 6389.279111][ T253] netlink_unicast+0x449/0x710 [ 6389.279111][ T253] netlink_sendmsg+0x723/0xbe0 [ 6389.279111][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6389.279111][ T253] ___sys_sendmsg+0xee/0x170 [ 6389.279111][ T253] __sys_sendmsg+0xcd/0x170 [ 6389.279111][ T253] do_syscall_64+0xc6/0x1e0 [ 6389.279111][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6389.279111][ T253] [ 6389.281355][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6389.281355][ T253] netdev_get_by_index+0x5e/0x80 [ 6389.281355][ T253] fib6_nh_init+0x3d8/0x1580 [ 6389.281355][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6389.281355][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6389.281355][ T253] ipv6_add_addr+0x411/0x2000 [ 6389.281355][ T253] inet6_addr_add+0x30e/0xa40 [ 6389.281355][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6389.281355][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6389.281355][ T253] netlink_rcv_skb+0x130/0x360 [ 6389.281355][ T253] netlink_unicast+0x449/0x710 [ 6389.281355][ T253] netlink_sendmsg+0x723/0xbe0 [ 6389.281355][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6389.281355][ T253] ___sys_sendmsg+0xee/0x170 [ 6389.281355][ T253] __sys_sendmsg+0xcd/0x170 [ 6389.281355][ T253] do_syscall_64+0xc6/0x1e0 [ 6389.281355][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6389.281355][ T253] [ 6389.283579][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6389.283579][ T253] netdev_get_by_index+0x5e/0x80 [ 6389.283579][ T253] fib6_nh_init+0x3d8/0x1580 [ 6389.283579][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6389.283579][ T253] ip6_route_add+0x1c/0x140 [ 6389.283579][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6389.283579][ T253] addrconf_add_dev+0xe2/0x170 [ 6389.283579][ T253] inet6_addr_add+0x12f/0xa40 [ 6389.283579][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6389.283579][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6389.283579][ T253] netlink_rcv_skb+0x130/0x360 [ 6389.283579][ T253] netlink_unicast+0x449/0x710 [ 6389.283579][ T253] netlink_sendmsg+0x723/0xbe0 [ 6389.283579][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6389.283579][ T253] ___sys_sendmsg+0xee/0x170 [ 6389.283579][ T253] __sys_sendmsg+0xcd/0x170 [ 6389.283579][ T253] do_syscall_64+0xc6/0x1e0 [ 6389.283579][ T253] [ 6389.285776][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6389.285776][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6389.285776][ T253] ipv6_find_idev+0x102/0x170 [ 6389.285776][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6389.285776][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6389.285776][ T253] netlink_rcv_skb+0x130/0x360 [ 6389.285776][ T253] netlink_unicast+0x449/0x710 [ 6389.285776][ T253] netlink_sendmsg+0x723/0xbe0 [ 6389.285776][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6389.285776][ T253] ___sys_sendmsg+0xee/0x170 [ 6389.285776][ T253] __sys_sendmsg+0xcd/0x170 [ 6389.285776][ T253] do_syscall_64+0xc6/0x1e0 [ 6389.285776][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6389.285776][ T253] [ 6389.287494][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6389.287494][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6389.287494][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6389.287494][ T253] ipv6_find_idev+0x102/0x170 [ 6389.287494][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6389.287494][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6389.287494][ T253] netlink_rcv_skb+0x130/0x360 [ 6389.287494][ T253] netlink_unicast+0x449/0x710 [ 6389.287494][ T253] netlink_sendmsg+0x723/0xbe0 [ 6389.287494][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6389.287494][ T253] ___sys_sendmsg+0xee/0x170 [ 6389.287494][ T253] __sys_sendmsg+0xcd/0x170 [ 6389.287494][ T253] do_syscall_64+0xc6/0x1e0 [ 6389.287494][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6389.287494][ T253] [ 6399.538307][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6399.538854][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6399.538854][ T253] dst_init+0x84/0x4a0 [ 6399.538854][ T253] dst_alloc+0x97/0x150 [ 6399.538854][ T253] ip6_dst_alloc+0x23/0x90 [ 6399.538854][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6399.538854][ T253] ip6_pol_route+0x56f/0x840 [ 6399.538854][ T253] fib6_rule_lookup+0x334/0x630 [ 6399.538854][ T253] ip6_route_output_flags+0x259/0x480 [ 6399.538854][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6399.538854][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6399.538854][ T253] netlink_rcv_skb+0x130/0x360 [ 6399.538854][ T253] netlink_unicast+0x449/0x710 [ 6399.538854][ T253] netlink_sendmsg+0x723/0xbe0 [ 6399.538854][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6399.538854][ T253] ___sys_sendmsg+0xee/0x170 [ 6399.538854][ T253] __sys_sendmsg+0xcd/0x170 [ 6399.538854][ T253] do_syscall_64+0xc6/0x1e0 [ 6399.538854][ T253] [ 6399.541055][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6399.541055][ T253] netdev_get_by_index+0x5e/0x80 [ 6399.541055][ T253] fib6_nh_init+0x3d8/0x1580 [ 6399.541055][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6399.541055][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6399.541055][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6399.541055][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6399.541055][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6399.541055][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6399.541055][ T253] addrconf_dad_begin+0x310/0x670 [ 6399.541055][ T253] addrconf_dad_work+0x10b/0xab0 [ 6399.541055][ T253] process_one_work+0x84d/0x18a0 [ 6399.541055][ T253] worker_thread+0x587/0xd30 [ 6399.541055][ T253] kthread+0x28a/0x350 [ 6399.541055][ T253] ret_from_fork+0x31/0x70 [ 6399.541055][ T253] ret_from_fork_asm+0x1a/0x30 [ 6399.541055][ T253] [ 6399.543197][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6399.543197][ T253] netdev_get_by_index+0x5e/0x80 [ 6399.543197][ T253] fib6_nh_init+0x3d8/0x1580 [ 6399.543197][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6399.543197][ T253] ip6_route_add+0x1c/0x140 [ 6399.543197][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6399.543197][ T253] inet6_addr_add+0x4f8/0xa40 [ 6399.543197][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6399.543197][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6399.543197][ T253] netlink_rcv_skb+0x130/0x360 [ 6399.543197][ T253] netlink_unicast+0x449/0x710 [ 6399.543197][ T253] netlink_sendmsg+0x723/0xbe0 [ 6399.543197][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6399.543197][ T253] ___sys_sendmsg+0xee/0x170 [ 6399.543197][ T253] __sys_sendmsg+0xcd/0x170 [ 6399.543197][ T253] do_syscall_64+0xc6/0x1e0 [ 6399.543197][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6399.543197][ T253] [ 6399.545433][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6399.545433][ T253] netdev_get_by_index+0x5e/0x80 [ 6399.545433][ T253] fib6_nh_init+0x3d8/0x1580 [ 6399.545433][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6399.545433][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6399.545433][ T253] ipv6_add_addr+0x411/0x2000 [ 6399.545433][ T253] inet6_addr_add+0x30e/0xa40 [ 6399.545433][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6399.545433][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6399.545433][ T253] netlink_rcv_skb+0x130/0x360 [ 6399.545433][ T253] netlink_unicast+0x449/0x710 [ 6399.545433][ T253] netlink_sendmsg+0x723/0xbe0 [ 6399.545433][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6399.545433][ T253] ___sys_sendmsg+0xee/0x170 [ 6399.545433][ T253] __sys_sendmsg+0xcd/0x170 [ 6399.545433][ T253] do_syscall_64+0xc6/0x1e0 [ 6399.545433][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6399.545433][ T253] [ 6399.547672][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6399.547672][ T253] netdev_get_by_index+0x5e/0x80 [ 6399.547672][ T253] fib6_nh_init+0x3d8/0x1580 [ 6399.547672][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6399.547672][ T253] ip6_route_add+0x1c/0x140 [ 6399.547672][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6399.547672][ T253] addrconf_add_dev+0xe2/0x170 [ 6399.547672][ T253] inet6_addr_add+0x12f/0xa40 [ 6399.547672][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6399.547672][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6399.547672][ T253] netlink_rcv_skb+0x130/0x360 [ 6399.547672][ T253] netlink_unicast+0x449/0x710 [ 6399.547672][ T253] netlink_sendmsg+0x723/0xbe0 [ 6399.547672][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6399.547672][ T253] ___sys_sendmsg+0xee/0x170 [ 6399.547672][ T253] __sys_sendmsg+0xcd/0x170 [ 6399.547672][ T253] do_syscall_64+0xc6/0x1e0 [ 6399.547672][ T253] [ 6399.549909][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6399.549909][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6399.549909][ T253] ipv6_find_idev+0x102/0x170 [ 6399.549909][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6399.549909][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6399.549909][ T253] netlink_rcv_skb+0x130/0x360 [ 6399.549909][ T253] netlink_unicast+0x449/0x710 [ 6399.549909][ T253] netlink_sendmsg+0x723/0xbe0 [ 6399.549909][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6399.549909][ T253] ___sys_sendmsg+0xee/0x170 [ 6399.549909][ T253] __sys_sendmsg+0xcd/0x170 [ 6399.549909][ T253] do_syscall_64+0xc6/0x1e0 [ 6399.549909][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6399.549909][ T253] [ 6399.551642][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6399.551642][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6399.551642][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6399.551642][ T253] ipv6_find_idev+0x102/0x170 [ 6399.551642][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6399.551642][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6399.551642][ T253] netlink_rcv_skb+0x130/0x360 [ 6399.551642][ T253] netlink_unicast+0x449/0x710 [ 6399.551642][ T253] netlink_sendmsg+0x723/0xbe0 [ 6399.551642][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6399.551642][ T253] ___sys_sendmsg+0xee/0x170 [ 6399.551642][ T253] __sys_sendmsg+0xcd/0x170 [ 6399.551642][ T253] do_syscall_64+0xc6/0x1e0 [ 6399.551642][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6399.551642][ T253] [ 6409.682304][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6409.682827][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6409.682827][ T253] dst_init+0x84/0x4a0 [ 6409.682827][ T253] dst_alloc+0x97/0x150 [ 6409.682827][ T253] ip6_dst_alloc+0x23/0x90 [ 6409.682827][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6409.682827][ T253] ip6_pol_route+0x56f/0x840 [ 6409.682827][ T253] fib6_rule_lookup+0x334/0x630 [ 6409.682827][ T253] ip6_route_output_flags+0x259/0x480 [ 6409.682827][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6409.682827][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6409.682827][ T253] netlink_rcv_skb+0x130/0x360 [ 6409.682827][ T253] netlink_unicast+0x449/0x710 [ 6409.682827][ T253] netlink_sendmsg+0x723/0xbe0 [ 6409.682827][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6409.682827][ T253] ___sys_sendmsg+0xee/0x170 [ 6409.682827][ T253] __sys_sendmsg+0xcd/0x170 [ 6409.682827][ T253] do_syscall_64+0xc6/0x1e0 [ 6409.682827][ T253] [ 6409.685161][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6409.685161][ T253] netdev_get_by_index+0x5e/0x80 [ 6409.685161][ T253] fib6_nh_init+0x3d8/0x1580 [ 6409.685161][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6409.685161][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6409.685161][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6409.685161][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6409.685161][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6409.685161][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6409.685161][ T253] addrconf_dad_begin+0x310/0x670 [ 6409.685161][ T253] addrconf_dad_work+0x10b/0xab0 [ 6409.685161][ T253] process_one_work+0x84d/0x18a0 [ 6409.685161][ T253] worker_thread+0x587/0xd30 [ 6409.685161][ T253] kthread+0x28a/0x350 [ 6409.685161][ T253] ret_from_fork+0x31/0x70 [ 6409.685161][ T253] ret_from_fork_asm+0x1a/0x30 [ 6409.685161][ T253] [ 6409.687346][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6409.687346][ T253] netdev_get_by_index+0x5e/0x80 [ 6409.687346][ T253] fib6_nh_init+0x3d8/0x1580 [ 6409.687346][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6409.687346][ T253] ip6_route_add+0x1c/0x140 [ 6409.687346][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6409.687346][ T253] inet6_addr_add+0x4f8/0xa40 [ 6409.687346][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6409.687346][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6409.687346][ T253] netlink_rcv_skb+0x130/0x360 [ 6409.687346][ T253] netlink_unicast+0x449/0x710 [ 6409.687346][ T253] netlink_sendmsg+0x723/0xbe0 [ 6409.687346][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6409.687346][ T253] ___sys_sendmsg+0xee/0x170 [ 6409.687346][ T253] __sys_sendmsg+0xcd/0x170 [ 6409.687346][ T253] do_syscall_64+0xc6/0x1e0 [ 6409.687346][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6409.687346][ T253] [ 6409.689639][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6409.689639][ T253] netdev_get_by_index+0x5e/0x80 [ 6409.689639][ T253] fib6_nh_init+0x3d8/0x1580 [ 6409.689639][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6409.689639][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6409.689639][ T253] ipv6_add_addr+0x411/0x2000 [ 6409.689639][ T253] inet6_addr_add+0x30e/0xa40 [ 6409.689639][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6409.689639][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6409.689639][ T253] netlink_rcv_skb+0x130/0x360 [ 6409.689639][ T253] netlink_unicast+0x449/0x710 [ 6409.689639][ T253] netlink_sendmsg+0x723/0xbe0 [ 6409.689639][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6409.689639][ T253] ___sys_sendmsg+0xee/0x170 [ 6409.689639][ T253] __sys_sendmsg+0xcd/0x170 [ 6409.689639][ T253] do_syscall_64+0xc6/0x1e0 [ 6409.689639][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6409.689639][ T253] [ 6409.691950][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6409.691950][ T253] netdev_get_by_index+0x5e/0x80 [ 6409.691950][ T253] fib6_nh_init+0x3d8/0x1580 [ 6409.691950][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6409.691950][ T253] ip6_route_add+0x1c/0x140 [ 6409.691950][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6409.691950][ T253] addrconf_add_dev+0xe2/0x170 [ 6409.691950][ T253] inet6_addr_add+0x12f/0xa40 [ 6409.691950][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6409.691950][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6409.691950][ T253] netlink_rcv_skb+0x130/0x360 [ 6409.691950][ T253] netlink_unicast+0x449/0x710 [ 6409.691950][ T253] netlink_sendmsg+0x723/0xbe0 [ 6409.691950][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6409.691950][ T253] ___sys_sendmsg+0xee/0x170 [ 6409.691950][ T253] __sys_sendmsg+0xcd/0x170 [ 6409.691950][ T253] do_syscall_64+0xc6/0x1e0 [ 6409.691950][ T253] [ 6409.694199][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6409.694199][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6409.694199][ T253] ipv6_find_idev+0x102/0x170 [ 6409.694199][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6409.694199][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6409.694199][ T253] netlink_rcv_skb+0x130/0x360 [ 6409.694199][ T253] netlink_unicast+0x449/0x710 [ 6409.694199][ T253] netlink_sendmsg+0x723/0xbe0 [ 6409.694199][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6409.694199][ T253] ___sys_sendmsg+0xee/0x170 [ 6409.694199][ T253] __sys_sendmsg+0xcd/0x170 [ 6409.694199][ T253] do_syscall_64+0xc6/0x1e0 [ 6409.694199][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6409.694199][ T253] [ 6409.695954][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6409.695954][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6409.695954][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6409.695954][ T253] ipv6_find_idev+0x102/0x170 [ 6409.695954][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6409.695954][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6409.695954][ T253] netlink_rcv_skb+0x130/0x360 [ 6409.695954][ T253] netlink_unicast+0x449/0x710 [ 6409.695954][ T253] netlink_sendmsg+0x723/0xbe0 [ 6409.695954][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6409.695954][ T253] ___sys_sendmsg+0xee/0x170 [ 6409.695954][ T253] __sys_sendmsg+0xcd/0x170 [ 6409.695954][ T253] do_syscall_64+0xc6/0x1e0 [ 6409.695954][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6409.695954][ T253] [ 6419.754301][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6419.754772][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6419.754772][ T253] dst_init+0x84/0x4a0 [ 6419.754772][ T253] dst_alloc+0x97/0x150 [ 6419.754772][ T253] ip6_dst_alloc+0x23/0x90 [ 6419.754772][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6419.754772][ T253] ip6_pol_route+0x56f/0x840 [ 6419.754772][ T253] fib6_rule_lookup+0x334/0x630 [ 6419.754772][ T253] ip6_route_output_flags+0x259/0x480 [ 6419.754772][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6419.754772][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6419.754772][ T253] netlink_rcv_skb+0x130/0x360 [ 6419.754772][ T253] netlink_unicast+0x449/0x710 [ 6419.754772][ T253] netlink_sendmsg+0x723/0xbe0 [ 6419.754772][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6419.754772][ T253] ___sys_sendmsg+0xee/0x170 [ 6419.754772][ T253] __sys_sendmsg+0xcd/0x170 [ 6419.754772][ T253] do_syscall_64+0xc6/0x1e0 [ 6419.754772][ T253] [ 6419.756973][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6419.756973][ T253] netdev_get_by_index+0x5e/0x80 [ 6419.756973][ T253] fib6_nh_init+0x3d8/0x1580 [ 6419.756973][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6419.756973][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6419.756973][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6419.756973][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6419.756973][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6419.756973][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6419.756973][ T253] addrconf_dad_begin+0x310/0x670 [ 6419.756973][ T253] addrconf_dad_work+0x10b/0xab0 [ 6419.756973][ T253] process_one_work+0x84d/0x18a0 [ 6419.756973][ T253] worker_thread+0x587/0xd30 [ 6419.756973][ T253] kthread+0x28a/0x350 [ 6419.756973][ T253] ret_from_fork+0x31/0x70 [ 6419.756973][ T253] ret_from_fork_asm+0x1a/0x30 [ 6419.756973][ T253] [ 6419.759148][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6419.759148][ T253] netdev_get_by_index+0x5e/0x80 [ 6419.759148][ T253] fib6_nh_init+0x3d8/0x1580 [ 6419.759148][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6419.759148][ T253] ip6_route_add+0x1c/0x140 [ 6419.759148][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6419.759148][ T253] inet6_addr_add+0x4f8/0xa40 [ 6419.759148][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6419.759148][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6419.759148][ T253] netlink_rcv_skb+0x130/0x360 [ 6419.759148][ T253] netlink_unicast+0x449/0x710 [ 6419.759148][ T253] netlink_sendmsg+0x723/0xbe0 [ 6419.759148][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6419.759148][ T253] ___sys_sendmsg+0xee/0x170 [ 6419.759148][ T253] __sys_sendmsg+0xcd/0x170 [ 6419.759148][ T253] do_syscall_64+0xc6/0x1e0 [ 6419.759148][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6419.759148][ T253] [ 6419.761428][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6419.761428][ T253] netdev_get_by_index+0x5e/0x80 [ 6419.761428][ T253] fib6_nh_init+0x3d8/0x1580 [ 6419.761428][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6419.761428][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6419.761428][ T253] ipv6_add_addr+0x411/0x2000 [ 6419.761428][ T253] inet6_addr_add+0x30e/0xa40 [ 6419.761428][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6419.761428][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6419.761428][ T253] netlink_rcv_skb+0x130/0x360 [ 6419.761428][ T253] netlink_unicast+0x449/0x710 [ 6419.761428][ T253] netlink_sendmsg+0x723/0xbe0 [ 6419.761428][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6419.761428][ T253] ___sys_sendmsg+0xee/0x170 [ 6419.761428][ T253] __sys_sendmsg+0xcd/0x170 [ 6419.761428][ T253] do_syscall_64+0xc6/0x1e0 [ 6419.761428][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6419.761428][ T253] [ 6419.763687][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6419.763687][ T253] netdev_get_by_index+0x5e/0x80 [ 6419.763687][ T253] fib6_nh_init+0x3d8/0x1580 [ 6419.763687][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6419.763687][ T253] ip6_route_add+0x1c/0x140 [ 6419.763687][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6419.763687][ T253] addrconf_add_dev+0xe2/0x170 [ 6419.763687][ T253] inet6_addr_add+0x12f/0xa40 [ 6419.763687][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6419.763687][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6419.763687][ T253] netlink_rcv_skb+0x130/0x360 [ 6419.763687][ T253] netlink_unicast+0x449/0x710 [ 6419.763687][ T253] netlink_sendmsg+0x723/0xbe0 [ 6419.763687][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6419.763687][ T253] ___sys_sendmsg+0xee/0x170 [ 6419.763687][ T253] __sys_sendmsg+0xcd/0x170 [ 6419.763687][ T253] do_syscall_64+0xc6/0x1e0 [ 6419.763687][ T253] [ 6419.765877][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6419.765877][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6419.765877][ T253] ipv6_find_idev+0x102/0x170 [ 6419.765877][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6419.765877][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6419.765877][ T253] netlink_rcv_skb+0x130/0x360 [ 6419.765877][ T253] netlink_unicast+0x449/0x710 [ 6419.765877][ T253] netlink_sendmsg+0x723/0xbe0 [ 6419.765877][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6419.765877][ T253] ___sys_sendmsg+0xee/0x170 [ 6419.765877][ T253] __sys_sendmsg+0xcd/0x170 [ 6419.765877][ T253] do_syscall_64+0xc6/0x1e0 [ 6419.765877][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6419.765877][ T253] [ 6419.767560][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6419.767560][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6419.767560][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6419.767560][ T253] ipv6_find_idev+0x102/0x170 [ 6419.767560][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6419.767560][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6419.767560][ T253] netlink_rcv_skb+0x130/0x360 [ 6419.767560][ T253] netlink_unicast+0x449/0x710 [ 6419.767560][ T253] netlink_sendmsg+0x723/0xbe0 [ 6419.767560][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6419.767560][ T253] ___sys_sendmsg+0xee/0x170 [ 6419.767560][ T253] __sys_sendmsg+0xcd/0x170 [ 6419.767560][ T253] do_syscall_64+0xc6/0x1e0 [ 6419.767560][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6419.767560][ T253] [ 6430.010274][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6430.010759][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6430.010759][ T253] dst_init+0x84/0x4a0 [ 6430.010759][ T253] dst_alloc+0x97/0x150 [ 6430.010759][ T253] ip6_dst_alloc+0x23/0x90 [ 6430.010759][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6430.010759][ T253] ip6_pol_route+0x56f/0x840 [ 6430.010759][ T253] fib6_rule_lookup+0x334/0x630 [ 6430.010759][ T253] ip6_route_output_flags+0x259/0x480 [ 6430.010759][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6430.010759][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6430.010759][ T253] netlink_rcv_skb+0x130/0x360 [ 6430.010759][ T253] netlink_unicast+0x449/0x710 [ 6430.010759][ T253] netlink_sendmsg+0x723/0xbe0 [ 6430.010759][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6430.010759][ T253] ___sys_sendmsg+0xee/0x170 [ 6430.010759][ T253] __sys_sendmsg+0xcd/0x170 [ 6430.010759][ T253] do_syscall_64+0xc6/0x1e0 [ 6430.010759][ T253] [ 6430.012970][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6430.012970][ T253] netdev_get_by_index+0x5e/0x80 [ 6430.012970][ T253] fib6_nh_init+0x3d8/0x1580 [ 6430.012970][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6430.012970][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6430.012970][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6430.012970][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6430.012970][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6430.012970][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6430.012970][ T253] addrconf_dad_begin+0x310/0x670 [ 6430.012970][ T253] addrconf_dad_work+0x10b/0xab0 [ 6430.012970][ T253] process_one_work+0x84d/0x18a0 [ 6430.012970][ T253] worker_thread+0x587/0xd30 [ 6430.012970][ T253] kthread+0x28a/0x350 [ 6430.012970][ T253] ret_from_fork+0x31/0x70 [ 6430.012970][ T253] ret_from_fork_asm+0x1a/0x30 [ 6430.012970][ T253] [ 6430.015123][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6430.015123][ T253] netdev_get_by_index+0x5e/0x80 [ 6430.015123][ T253] fib6_nh_init+0x3d8/0x1580 [ 6430.015123][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6430.015123][ T253] ip6_route_add+0x1c/0x140 [ 6430.015123][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6430.015123][ T253] inet6_addr_add+0x4f8/0xa40 [ 6430.015123][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6430.015123][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6430.015123][ T253] netlink_rcv_skb+0x130/0x360 [ 6430.015123][ T253] netlink_unicast+0x449/0x710 [ 6430.015123][ T253] netlink_sendmsg+0x723/0xbe0 [ 6430.015123][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6430.015123][ T253] ___sys_sendmsg+0xee/0x170 [ 6430.015123][ T253] __sys_sendmsg+0xcd/0x170 [ 6430.015123][ T253] do_syscall_64+0xc6/0x1e0 [ 6430.015123][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6430.015123][ T253] [ 6430.017372][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6430.017372][ T253] netdev_get_by_index+0x5e/0x80 [ 6430.017372][ T253] fib6_nh_init+0x3d8/0x1580 [ 6430.017372][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6430.017372][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6430.017372][ T253] ipv6_add_addr+0x411/0x2000 [ 6430.017372][ T253] inet6_addr_add+0x30e/0xa40 [ 6430.017372][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6430.017372][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6430.017372][ T253] netlink_rcv_skb+0x130/0x360 [ 6430.017372][ T253] netlink_unicast+0x449/0x710 [ 6430.017372][ T253] netlink_sendmsg+0x723/0xbe0 [ 6430.017372][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6430.017372][ T253] ___sys_sendmsg+0xee/0x170 [ 6430.017372][ T253] __sys_sendmsg+0xcd/0x170 [ 6430.017372][ T253] do_syscall_64+0xc6/0x1e0 [ 6430.017372][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6430.017372][ T253] [ 6430.019630][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6430.019630][ T253] netdev_get_by_index+0x5e/0x80 [ 6430.019630][ T253] fib6_nh_init+0x3d8/0x1580 [ 6430.019630][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6430.019630][ T253] ip6_route_add+0x1c/0x140 [ 6430.019630][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6430.019630][ T253] addrconf_add_dev+0xe2/0x170 [ 6430.019630][ T253] inet6_addr_add+0x12f/0xa40 [ 6430.019630][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6430.019630][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6430.019630][ T253] netlink_rcv_skb+0x130/0x360 [ 6430.019630][ T253] netlink_unicast+0x449/0x710 [ 6430.019630][ T253] netlink_sendmsg+0x723/0xbe0 [ 6430.019630][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6430.019630][ T253] ___sys_sendmsg+0xee/0x170 [ 6430.019630][ T253] __sys_sendmsg+0xcd/0x170 [ 6430.019630][ T253] do_syscall_64+0xc6/0x1e0 [ 6430.019630][ T253] [ 6430.021851][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6430.021851][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6430.021851][ T253] ipv6_find_idev+0x102/0x170 [ 6430.021851][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6430.021851][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6430.021851][ T253] netlink_rcv_skb+0x130/0x360 [ 6430.021851][ T253] netlink_unicast+0x449/0x710 [ 6430.021851][ T253] netlink_sendmsg+0x723/0xbe0 [ 6430.021851][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6430.021851][ T253] ___sys_sendmsg+0xee/0x170 [ 6430.021851][ T253] __sys_sendmsg+0xcd/0x170 [ 6430.021851][ T253] do_syscall_64+0xc6/0x1e0 [ 6430.021851][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6430.021851][ T253] [ 6430.023584][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6430.023584][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6430.023584][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6430.023584][ T253] ipv6_find_idev+0x102/0x170 [ 6430.023584][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6430.023584][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6430.023584][ T253] netlink_rcv_skb+0x130/0x360 [ 6430.023584][ T253] netlink_unicast+0x449/0x710 [ 6430.023584][ T253] netlink_sendmsg+0x723/0xbe0 [ 6430.023584][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6430.023584][ T253] ___sys_sendmsg+0xee/0x170 [ 6430.023584][ T253] __sys_sendmsg+0xcd/0x170 [ 6430.023584][ T253] do_syscall_64+0xc6/0x1e0 [ 6430.023584][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6430.023584][ T253] [ 6440.338443][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6440.338931][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6440.338931][ T253] dst_init+0x84/0x4a0 [ 6440.338931][ T253] dst_alloc+0x97/0x150 [ 6440.338931][ T253] ip6_dst_alloc+0x23/0x90 [ 6440.338931][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6440.338931][ T253] ip6_pol_route+0x56f/0x840 [ 6440.338931][ T253] fib6_rule_lookup+0x334/0x630 [ 6440.338931][ T253] ip6_route_output_flags+0x259/0x480 [ 6440.338931][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6440.338931][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6440.338931][ T253] netlink_rcv_skb+0x130/0x360 [ 6440.338931][ T253] netlink_unicast+0x449/0x710 [ 6440.338931][ T253] netlink_sendmsg+0x723/0xbe0 [ 6440.338931][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6440.338931][ T253] ___sys_sendmsg+0xee/0x170 [ 6440.338931][ T253] __sys_sendmsg+0xcd/0x170 [ 6440.338931][ T253] do_syscall_64+0xc6/0x1e0 [ 6440.338931][ T253] [ 6440.341148][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6440.341148][ T253] netdev_get_by_index+0x5e/0x80 [ 6440.341148][ T253] fib6_nh_init+0x3d8/0x1580 [ 6440.341148][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6440.341148][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6440.341148][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6440.341148][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6440.341148][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6440.341148][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6440.341148][ T253] addrconf_dad_begin+0x310/0x670 [ 6440.341148][ T253] addrconf_dad_work+0x10b/0xab0 [ 6440.341148][ T253] process_one_work+0x84d/0x18a0 [ 6440.341148][ T253] worker_thread+0x587/0xd30 [ 6440.341148][ T253] kthread+0x28a/0x350 [ 6440.341148][ T253] ret_from_fork+0x31/0x70 [ 6440.341148][ T253] ret_from_fork_asm+0x1a/0x30 [ 6440.341148][ T253] [ 6440.343295][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6440.343295][ T253] netdev_get_by_index+0x5e/0x80 [ 6440.343295][ T253] fib6_nh_init+0x3d8/0x1580 [ 6440.343295][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6440.343295][ T253] ip6_route_add+0x1c/0x140 [ 6440.343295][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6440.343295][ T253] inet6_addr_add+0x4f8/0xa40 [ 6440.343295][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6440.343295][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6440.343295][ T253] netlink_rcv_skb+0x130/0x360 [ 6440.343295][ T253] netlink_unicast+0x449/0x710 [ 6440.343295][ T253] netlink_sendmsg+0x723/0xbe0 [ 6440.343295][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6440.343295][ T253] ___sys_sendmsg+0xee/0x170 [ 6440.343295][ T253] __sys_sendmsg+0xcd/0x170 [ 6440.343295][ T253] do_syscall_64+0xc6/0x1e0 [ 6440.343295][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6440.343295][ T253] [ 6440.345536][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6440.345536][ T253] netdev_get_by_index+0x5e/0x80 [ 6440.345536][ T253] fib6_nh_init+0x3d8/0x1580 [ 6440.345536][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6440.345536][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6440.345536][ T253] ipv6_add_addr+0x411/0x2000 [ 6440.345536][ T253] inet6_addr_add+0x30e/0xa40 [ 6440.345536][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6440.345536][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6440.345536][ T253] netlink_rcv_skb+0x130/0x360 [ 6440.345536][ T253] netlink_unicast+0x449/0x710 [ 6440.345536][ T253] netlink_sendmsg+0x723/0xbe0 [ 6440.345536][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6440.345536][ T253] ___sys_sendmsg+0xee/0x170 [ 6440.345536][ T253] __sys_sendmsg+0xcd/0x170 [ 6440.345536][ T253] do_syscall_64+0xc6/0x1e0 [ 6440.345536][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6440.345536][ T253] [ 6440.347778][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6440.347778][ T253] netdev_get_by_index+0x5e/0x80 [ 6440.347778][ T253] fib6_nh_init+0x3d8/0x1580 [ 6440.347778][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6440.347778][ T253] ip6_route_add+0x1c/0x140 [ 6440.347778][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6440.347778][ T253] addrconf_add_dev+0xe2/0x170 [ 6440.347778][ T253] inet6_addr_add+0x12f/0xa40 [ 6440.347778][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6440.347778][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6440.347778][ T253] netlink_rcv_skb+0x130/0x360 [ 6440.347778][ T253] netlink_unicast+0x449/0x710 [ 6440.347778][ T253] netlink_sendmsg+0x723/0xbe0 [ 6440.347778][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6440.347778][ T253] ___sys_sendmsg+0xee/0x170 [ 6440.347778][ T253] __sys_sendmsg+0xcd/0x170 [ 6440.347778][ T253] do_syscall_64+0xc6/0x1e0 [ 6440.347778][ T253] [ 6440.349986][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6440.349986][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6440.349986][ T253] ipv6_find_idev+0x102/0x170 [ 6440.349986][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6440.349986][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6440.349986][ T253] netlink_rcv_skb+0x130/0x360 [ 6440.349986][ T253] netlink_unicast+0x449/0x710 [ 6440.349986][ T253] netlink_sendmsg+0x723/0xbe0 [ 6440.349986][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6440.349986][ T253] ___sys_sendmsg+0xee/0x170 [ 6440.349986][ T253] __sys_sendmsg+0xcd/0x170 [ 6440.349986][ T253] do_syscall_64+0xc6/0x1e0 [ 6440.349986][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6440.349986][ T253] [ 6440.351710][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6440.351710][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6440.351710][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6440.351710][ T253] ipv6_find_idev+0x102/0x170 [ 6440.351710][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6440.351710][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6440.351710][ T253] netlink_rcv_skb+0x130/0x360 [ 6440.351710][ T253] netlink_unicast+0x449/0x710 [ 6440.351710][ T253] netlink_sendmsg+0x723/0xbe0 [ 6440.351710][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6440.351710][ T253] ___sys_sendmsg+0xee/0x170 [ 6440.351710][ T253] __sys_sendmsg+0xcd/0x170 [ 6440.351710][ T253] do_syscall_64+0xc6/0x1e0 [ 6440.351710][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6440.351710][ T253] [ 6450.434323][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6450.434803][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6450.434803][ T253] dst_init+0x84/0x4a0 [ 6450.434803][ T253] dst_alloc+0x97/0x150 [ 6450.434803][ T253] ip6_dst_alloc+0x23/0x90 [ 6450.434803][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6450.434803][ T253] ip6_pol_route+0x56f/0x840 [ 6450.434803][ T253] fib6_rule_lookup+0x334/0x630 [ 6450.434803][ T253] ip6_route_output_flags+0x259/0x480 [ 6450.434803][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6450.434803][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6450.434803][ T253] netlink_rcv_skb+0x130/0x360 [ 6450.434803][ T253] netlink_unicast+0x449/0x710 [ 6450.434803][ T253] netlink_sendmsg+0x723/0xbe0 [ 6450.434803][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6450.434803][ T253] ___sys_sendmsg+0xee/0x170 [ 6450.434803][ T253] __sys_sendmsg+0xcd/0x170 [ 6450.434803][ T253] do_syscall_64+0xc6/0x1e0 [ 6450.434803][ T253] [ 6450.437005][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6450.437005][ T253] netdev_get_by_index+0x5e/0x80 [ 6450.437005][ T253] fib6_nh_init+0x3d8/0x1580 [ 6450.437005][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6450.437005][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6450.437005][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6450.437005][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6450.437005][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6450.437005][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6450.437005][ T253] addrconf_dad_begin+0x310/0x670 [ 6450.437005][ T253] addrconf_dad_work+0x10b/0xab0 [ 6450.437005][ T253] process_one_work+0x84d/0x18a0 [ 6450.437005][ T253] worker_thread+0x587/0xd30 [ 6450.437005][ T253] kthread+0x28a/0x350 [ 6450.437005][ T253] ret_from_fork+0x31/0x70 [ 6450.437005][ T253] ret_from_fork_asm+0x1a/0x30 [ 6450.437005][ T253] [ 6450.439157][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6450.439157][ T253] netdev_get_by_index+0x5e/0x80 [ 6450.439157][ T253] fib6_nh_init+0x3d8/0x1580 [ 6450.439157][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6450.439157][ T253] ip6_route_add+0x1c/0x140 [ 6450.439157][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6450.439157][ T253] inet6_addr_add+0x4f8/0xa40 [ 6450.439157][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6450.439157][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6450.439157][ T253] netlink_rcv_skb+0x130/0x360 [ 6450.439157][ T253] netlink_unicast+0x449/0x710 [ 6450.439157][ T253] netlink_sendmsg+0x723/0xbe0 [ 6450.439157][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6450.439157][ T253] ___sys_sendmsg+0xee/0x170 [ 6450.439157][ T253] __sys_sendmsg+0xcd/0x170 [ 6450.439157][ T253] do_syscall_64+0xc6/0x1e0 [ 6450.439157][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6450.439157][ T253] [ 6450.441418][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6450.441418][ T253] netdev_get_by_index+0x5e/0x80 [ 6450.441418][ T253] fib6_nh_init+0x3d8/0x1580 [ 6450.441418][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6450.441418][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6450.441418][ T253] ipv6_add_addr+0x411/0x2000 [ 6450.441418][ T253] inet6_addr_add+0x30e/0xa40 [ 6450.441418][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6450.441418][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6450.441418][ T253] netlink_rcv_skb+0x130/0x360 [ 6450.441418][ T253] netlink_unicast+0x449/0x710 [ 6450.441418][ T253] netlink_sendmsg+0x723/0xbe0 [ 6450.441418][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6450.441418][ T253] ___sys_sendmsg+0xee/0x170 [ 6450.441418][ T253] __sys_sendmsg+0xcd/0x170 [ 6450.441418][ T253] do_syscall_64+0xc6/0x1e0 [ 6450.441418][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6450.441418][ T253] [ 6450.443662][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6450.443662][ T253] netdev_get_by_index+0x5e/0x80 [ 6450.443662][ T253] fib6_nh_init+0x3d8/0x1580 [ 6450.443662][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6450.443662][ T253] ip6_route_add+0x1c/0x140 [ 6450.443662][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6450.443662][ T253] addrconf_add_dev+0xe2/0x170 [ 6450.443662][ T253] inet6_addr_add+0x12f/0xa40 [ 6450.443662][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6450.443662][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6450.443662][ T253] netlink_rcv_skb+0x130/0x360 [ 6450.443662][ T253] netlink_unicast+0x449/0x710 [ 6450.443662][ T253] netlink_sendmsg+0x723/0xbe0 [ 6450.443662][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6450.443662][ T253] ___sys_sendmsg+0xee/0x170 [ 6450.443662][ T253] __sys_sendmsg+0xcd/0x170 [ 6450.443662][ T253] do_syscall_64+0xc6/0x1e0 [ 6450.443662][ T253] [ 6450.445865][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6450.445865][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6450.445865][ T253] ipv6_find_idev+0x102/0x170 [ 6450.445865][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6450.445865][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6450.445865][ T253] netlink_rcv_skb+0x130/0x360 [ 6450.445865][ T253] netlink_unicast+0x449/0x710 [ 6450.445865][ T253] netlink_sendmsg+0x723/0xbe0 [ 6450.445865][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6450.445865][ T253] ___sys_sendmsg+0xee/0x170 [ 6450.445865][ T253] __sys_sendmsg+0xcd/0x170 [ 6450.445865][ T253] do_syscall_64+0xc6/0x1e0 [ 6450.445865][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6450.445865][ T253] [ 6450.447637][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6450.447637][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6450.447637][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6450.447637][ T253] ipv6_find_idev+0x102/0x170 [ 6450.447637][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6450.447637][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6450.447637][ T253] netlink_rcv_skb+0x130/0x360 [ 6450.447637][ T253] netlink_unicast+0x449/0x710 [ 6450.447637][ T253] netlink_sendmsg+0x723/0xbe0 [ 6450.447637][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6450.447637][ T253] ___sys_sendmsg+0xee/0x170 [ 6450.447637][ T253] __sys_sendmsg+0xcd/0x170 [ 6450.447637][ T253] do_syscall_64+0xc6/0x1e0 [ 6450.447637][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6450.447637][ T253] [ 6460.698413][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6460.698965][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6460.698965][ T253] dst_init+0x84/0x4a0 [ 6460.698965][ T253] dst_alloc+0x97/0x150 [ 6460.698965][ T253] ip6_dst_alloc+0x23/0x90 [ 6460.698965][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6460.698965][ T253] ip6_pol_route+0x56f/0x840 [ 6460.698965][ T253] fib6_rule_lookup+0x334/0x630 [ 6460.698965][ T253] ip6_route_output_flags+0x259/0x480 [ 6460.698965][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6460.698965][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6460.698965][ T253] netlink_rcv_skb+0x130/0x360 [ 6460.698965][ T253] netlink_unicast+0x449/0x710 [ 6460.698965][ T253] netlink_sendmsg+0x723/0xbe0 [ 6460.698965][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6460.698965][ T253] ___sys_sendmsg+0xee/0x170 [ 6460.698965][ T253] __sys_sendmsg+0xcd/0x170 [ 6460.698965][ T253] do_syscall_64+0xc6/0x1e0 [ 6460.698965][ T253] [ 6460.701179][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6460.701179][ T253] netdev_get_by_index+0x5e/0x80 [ 6460.701179][ T253] fib6_nh_init+0x3d8/0x1580 [ 6460.701179][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6460.701179][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6460.701179][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6460.701179][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6460.701179][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6460.701179][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6460.701179][ T253] addrconf_dad_begin+0x310/0x670 [ 6460.701179][ T253] addrconf_dad_work+0x10b/0xab0 [ 6460.701179][ T253] process_one_work+0x84d/0x18a0 [ 6460.701179][ T253] worker_thread+0x587/0xd30 [ 6460.701179][ T253] kthread+0x28a/0x350 [ 6460.701179][ T253] ret_from_fork+0x31/0x70 [ 6460.701179][ T253] ret_from_fork_asm+0x1a/0x30 [ 6460.701179][ T253] [ 6460.703407][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6460.703407][ T253] netdev_get_by_index+0x5e/0x80 [ 6460.703407][ T253] fib6_nh_init+0x3d8/0x1580 [ 6460.703407][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6460.703407][ T253] ip6_route_add+0x1c/0x140 [ 6460.703407][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6460.703407][ T253] inet6_addr_add+0x4f8/0xa40 [ 6460.703407][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6460.703407][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6460.703407][ T253] netlink_rcv_skb+0x130/0x360 [ 6460.703407][ T253] netlink_unicast+0x449/0x710 [ 6460.703407][ T253] netlink_sendmsg+0x723/0xbe0 [ 6460.703407][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6460.703407][ T253] ___sys_sendmsg+0xee/0x170 [ 6460.703407][ T253] __sys_sendmsg+0xcd/0x170 [ 6460.703407][ T253] do_syscall_64+0xc6/0x1e0 [ 6460.703407][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6460.703407][ T253] [ 6460.705650][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6460.705650][ T253] netdev_get_by_index+0x5e/0x80 [ 6460.705650][ T253] fib6_nh_init+0x3d8/0x1580 [ 6460.705650][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6460.705650][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6460.705650][ T253] ipv6_add_addr+0x411/0x2000 [ 6460.705650][ T253] inet6_addr_add+0x30e/0xa40 [ 6460.705650][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6460.705650][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6460.705650][ T253] netlink_rcv_skb+0x130/0x360 [ 6460.705650][ T253] netlink_unicast+0x449/0x710 [ 6460.705650][ T253] netlink_sendmsg+0x723/0xbe0 [ 6460.705650][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6460.705650][ T253] ___sys_sendmsg+0xee/0x170 [ 6460.705650][ T253] __sys_sendmsg+0xcd/0x170 [ 6460.705650][ T253] do_syscall_64+0xc6/0x1e0 [ 6460.705650][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6460.705650][ T253] [ 6460.707889][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6460.707889][ T253] netdev_get_by_index+0x5e/0x80 [ 6460.707889][ T253] fib6_nh_init+0x3d8/0x1580 [ 6460.707889][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6460.707889][ T253] ip6_route_add+0x1c/0x140 [ 6460.707889][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6460.707889][ T253] addrconf_add_dev+0xe2/0x170 [ 6460.707889][ T253] inet6_addr_add+0x12f/0xa40 [ 6460.707889][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6460.707889][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6460.707889][ T253] netlink_rcv_skb+0x130/0x360 [ 6460.707889][ T253] netlink_unicast+0x449/0x710 [ 6460.707889][ T253] netlink_sendmsg+0x723/0xbe0 [ 6460.707889][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6460.707889][ T253] ___sys_sendmsg+0xee/0x170 [ 6460.707889][ T253] __sys_sendmsg+0xcd/0x170 [ 6460.707889][ T253] do_syscall_64+0xc6/0x1e0 [ 6460.707889][ T253] [ 6460.710120][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6460.710120][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6460.710120][ T253] ipv6_find_idev+0x102/0x170 [ 6460.710120][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6460.710120][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6460.710120][ T253] netlink_rcv_skb+0x130/0x360 [ 6460.710120][ T253] netlink_unicast+0x449/0x710 [ 6460.710120][ T253] netlink_sendmsg+0x723/0xbe0 [ 6460.710120][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6460.710120][ T253] ___sys_sendmsg+0xee/0x170 [ 6460.710120][ T253] __sys_sendmsg+0xcd/0x170 [ 6460.710120][ T253] do_syscall_64+0xc6/0x1e0 [ 6460.710120][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6460.710120][ T253] [ 6460.711837][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6460.711837][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6460.711837][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6460.711837][ T253] ipv6_find_idev+0x102/0x170 [ 6460.711837][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6460.711837][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6460.711837][ T253] netlink_rcv_skb+0x130/0x360 [ 6460.711837][ T253] netlink_unicast+0x449/0x710 [ 6460.711837][ T253] netlink_sendmsg+0x723/0xbe0 [ 6460.711837][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6460.711837][ T253] ___sys_sendmsg+0xee/0x170 [ 6460.711837][ T253] __sys_sendmsg+0xcd/0x170 [ 6460.711837][ T253] do_syscall_64+0xc6/0x1e0 [ 6460.711837][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6460.711837][ T253] [ 6470.962313][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6470.962798][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6470.962798][ T253] dst_init+0x84/0x4a0 [ 6470.962798][ T253] dst_alloc+0x97/0x150 [ 6470.962798][ T253] ip6_dst_alloc+0x23/0x90 [ 6470.962798][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6470.962798][ T253] ip6_pol_route+0x56f/0x840 [ 6470.962798][ T253] fib6_rule_lookup+0x334/0x630 [ 6470.962798][ T253] ip6_route_output_flags+0x259/0x480 [ 6470.962798][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6470.962798][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6470.962798][ T253] netlink_rcv_skb+0x130/0x360 [ 6470.962798][ T253] netlink_unicast+0x449/0x710 [ 6470.962798][ T253] netlink_sendmsg+0x723/0xbe0 [ 6470.962798][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6470.962798][ T253] ___sys_sendmsg+0xee/0x170 [ 6470.962798][ T253] __sys_sendmsg+0xcd/0x170 [ 6470.962798][ T253] do_syscall_64+0xc6/0x1e0 [ 6470.962798][ T253] [ 6470.965529][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6470.965529][ T253] netdev_get_by_index+0x5e/0x80 [ 6470.965529][ T253] fib6_nh_init+0x3d8/0x1580 [ 6470.965529][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6470.965529][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6470.965529][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6470.965529][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6470.965529][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6470.965529][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6470.965529][ T253] addrconf_dad_begin+0x310/0x670 [ 6470.965529][ T253] addrconf_dad_work+0x10b/0xab0 [ 6470.965529][ T253] process_one_work+0x84d/0x18a0 [ 6470.965529][ T253] worker_thread+0x587/0xd30 [ 6470.965529][ T253] kthread+0x28a/0x350 [ 6470.965529][ T253] ret_from_fork+0x31/0x70 [ 6470.965529][ T253] ret_from_fork_asm+0x1a/0x30 [ 6470.965529][ T253] [ 6470.967695][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6470.967695][ T253] netdev_get_by_index+0x5e/0x80 [ 6470.967695][ T253] fib6_nh_init+0x3d8/0x1580 [ 6470.967695][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6470.967695][ T253] ip6_route_add+0x1c/0x140 [ 6470.967695][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6470.967695][ T253] inet6_addr_add+0x4f8/0xa40 [ 6470.967695][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6470.967695][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6470.967695][ T253] netlink_rcv_skb+0x130/0x360 [ 6470.967695][ T253] netlink_unicast+0x449/0x710 [ 6470.967695][ T253] netlink_sendmsg+0x723/0xbe0 [ 6470.967695][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6470.967695][ T253] ___sys_sendmsg+0xee/0x170 [ 6470.967695][ T253] __sys_sendmsg+0xcd/0x170 [ 6470.967695][ T253] do_syscall_64+0xc6/0x1e0 [ 6470.967695][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6470.967695][ T253] [ 6470.969943][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6470.969943][ T253] netdev_get_by_index+0x5e/0x80 [ 6470.969943][ T253] fib6_nh_init+0x3d8/0x1580 [ 6470.969943][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6470.969943][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6470.969943][ T253] ipv6_add_addr+0x411/0x2000 [ 6470.969943][ T253] inet6_addr_add+0x30e/0xa40 [ 6470.969943][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6470.969943][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6470.969943][ T253] netlink_rcv_skb+0x130/0x360 [ 6470.969943][ T253] netlink_unicast+0x449/0x710 [ 6470.969943][ T253] netlink_sendmsg+0x723/0xbe0 [ 6470.969943][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6470.969943][ T253] ___sys_sendmsg+0xee/0x170 [ 6470.969943][ T253] __sys_sendmsg+0xcd/0x170 [ 6470.969943][ T253] do_syscall_64+0xc6/0x1e0 [ 6470.969943][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6470.969943][ T253] [ 6470.972195][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6470.972195][ T253] netdev_get_by_index+0x5e/0x80 [ 6470.972195][ T253] fib6_nh_init+0x3d8/0x1580 [ 6470.972195][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6470.972195][ T253] ip6_route_add+0x1c/0x140 [ 6470.972195][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6470.972195][ T253] addrconf_add_dev+0xe2/0x170 [ 6470.972195][ T253] inet6_addr_add+0x12f/0xa40 [ 6470.972195][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6470.972195][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6470.972195][ T253] netlink_rcv_skb+0x130/0x360 [ 6470.972195][ T253] netlink_unicast+0x449/0x710 [ 6470.972195][ T253] netlink_sendmsg+0x723/0xbe0 [ 6470.972195][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6470.972195][ T253] ___sys_sendmsg+0xee/0x170 [ 6470.972195][ T253] __sys_sendmsg+0xcd/0x170 [ 6470.972195][ T253] do_syscall_64+0xc6/0x1e0 [ 6470.972195][ T253] [ 6470.974773][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6470.974773][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6470.974773][ T253] ipv6_find_idev+0x102/0x170 [ 6470.974773][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6470.974773][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6470.974773][ T253] netlink_rcv_skb+0x130/0x360 [ 6470.974773][ T253] netlink_unicast+0x449/0x710 [ 6470.974773][ T253] netlink_sendmsg+0x723/0xbe0 [ 6470.974773][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6470.974773][ T253] ___sys_sendmsg+0xee/0x170 [ 6470.974773][ T253] __sys_sendmsg+0xcd/0x170 [ 6470.974773][ T253] do_syscall_64+0xc6/0x1e0 [ 6470.974773][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6470.974773][ T253] [ 6470.976504][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6470.976504][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6470.976504][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6470.976504][ T253] ipv6_find_idev+0x102/0x170 [ 6470.976504][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6470.976504][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6470.976504][ T253] netlink_rcv_skb+0x130/0x360 [ 6470.976504][ T253] netlink_unicast+0x449/0x710 [ 6470.976504][ T253] netlink_sendmsg+0x723/0xbe0 [ 6470.976504][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6470.976504][ T253] ___sys_sendmsg+0xee/0x170 [ 6470.976504][ T253] __sys_sendmsg+0xcd/0x170 [ 6470.976504][ T253] do_syscall_64+0xc6/0x1e0 [ 6470.976504][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6470.976504][ T253] [ 6481.226296][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6481.226783][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6481.226783][ T253] dst_init+0x84/0x4a0 [ 6481.226783][ T253] dst_alloc+0x97/0x150 [ 6481.226783][ T253] ip6_dst_alloc+0x23/0x90 [ 6481.226783][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6481.226783][ T253] ip6_pol_route+0x56f/0x840 [ 6481.226783][ T253] fib6_rule_lookup+0x334/0x630 [ 6481.226783][ T253] ip6_route_output_flags+0x259/0x480 [ 6481.226783][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6481.226783][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6481.226783][ T253] netlink_rcv_skb+0x130/0x360 [ 6481.226783][ T253] netlink_unicast+0x449/0x710 [ 6481.226783][ T253] netlink_sendmsg+0x723/0xbe0 [ 6481.226783][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6481.226783][ T253] ___sys_sendmsg+0xee/0x170 [ 6481.226783][ T253] __sys_sendmsg+0xcd/0x170 [ 6481.226783][ T253] do_syscall_64+0xc6/0x1e0 [ 6481.226783][ T253] [ 6481.228979][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6481.228979][ T253] netdev_get_by_index+0x5e/0x80 [ 6481.228979][ T253] fib6_nh_init+0x3d8/0x1580 [ 6481.228979][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6481.228979][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6481.228979][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6481.228979][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6481.228979][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6481.228979][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6481.228979][ T253] addrconf_dad_begin+0x310/0x670 [ 6481.228979][ T253] addrconf_dad_work+0x10b/0xab0 [ 6481.228979][ T253] process_one_work+0x84d/0x18a0 [ 6481.228979][ T253] worker_thread+0x587/0xd30 [ 6481.228979][ T253] kthread+0x28a/0x350 [ 6481.228979][ T253] ret_from_fork+0x31/0x70 [ 6481.228979][ T253] ret_from_fork_asm+0x1a/0x30 [ 6481.228979][ T253] [ 6481.231152][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6481.231152][ T253] netdev_get_by_index+0x5e/0x80 [ 6481.231152][ T253] fib6_nh_init+0x3d8/0x1580 [ 6481.231152][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6481.231152][ T253] ip6_route_add+0x1c/0x140 [ 6481.231152][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6481.231152][ T253] inet6_addr_add+0x4f8/0xa40 [ 6481.231152][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6481.231152][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6481.231152][ T253] netlink_rcv_skb+0x130/0x360 [ 6481.231152][ T253] netlink_unicast+0x449/0x710 [ 6481.231152][ T253] netlink_sendmsg+0x723/0xbe0 [ 6481.231152][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6481.231152][ T253] ___sys_sendmsg+0xee/0x170 [ 6481.231152][ T253] __sys_sendmsg+0xcd/0x170 [ 6481.231152][ T253] do_syscall_64+0xc6/0x1e0 [ 6481.231152][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6481.231152][ T253] [ 6481.233395][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6481.233395][ T253] netdev_get_by_index+0x5e/0x80 [ 6481.233395][ T253] fib6_nh_init+0x3d8/0x1580 [ 6481.233395][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6481.233395][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6481.233395][ T253] ipv6_add_addr+0x411/0x2000 [ 6481.233395][ T253] inet6_addr_add+0x30e/0xa40 [ 6481.233395][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6481.233395][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6481.233395][ T253] netlink_rcv_skb+0x130/0x360 [ 6481.233395][ T253] netlink_unicast+0x449/0x710 [ 6481.233395][ T253] netlink_sendmsg+0x723/0xbe0 [ 6481.233395][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6481.233395][ T253] ___sys_sendmsg+0xee/0x170 [ 6481.233395][ T253] __sys_sendmsg+0xcd/0x170 [ 6481.233395][ T253] do_syscall_64+0xc6/0x1e0 [ 6481.233395][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6481.233395][ T253] [ 6481.235643][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6481.235643][ T253] netdev_get_by_index+0x5e/0x80 [ 6481.235643][ T253] fib6_nh_init+0x3d8/0x1580 [ 6481.235643][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6481.235643][ T253] ip6_route_add+0x1c/0x140 [ 6481.235643][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6481.235643][ T253] addrconf_add_dev+0xe2/0x170 [ 6481.235643][ T253] inet6_addr_add+0x12f/0xa40 [ 6481.235643][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6481.235643][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6481.235643][ T253] netlink_rcv_skb+0x130/0x360 [ 6481.235643][ T253] netlink_unicast+0x449/0x710 [ 6481.235643][ T253] netlink_sendmsg+0x723/0xbe0 [ 6481.235643][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6481.235643][ T253] ___sys_sendmsg+0xee/0x170 [ 6481.235643][ T253] __sys_sendmsg+0xcd/0x170 [ 6481.235643][ T253] do_syscall_64+0xc6/0x1e0 [ 6481.235643][ T253] [ 6481.237850][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6481.237850][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6481.237850][ T253] ipv6_find_idev+0x102/0x170 [ 6481.237850][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6481.237850][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6481.237850][ T253] netlink_rcv_skb+0x130/0x360 [ 6481.237850][ T253] netlink_unicast+0x449/0x710 [ 6481.237850][ T253] netlink_sendmsg+0x723/0xbe0 [ 6481.237850][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6481.237850][ T253] ___sys_sendmsg+0xee/0x170 [ 6481.237850][ T253] __sys_sendmsg+0xcd/0x170 [ 6481.237850][ T253] do_syscall_64+0xc6/0x1e0 [ 6481.237850][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6481.237850][ T253] [ 6481.239586][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6481.239586][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6481.239586][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6481.239586][ T253] ipv6_find_idev+0x102/0x170 [ 6481.239586][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6481.239586][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6481.239586][ T253] netlink_rcv_skb+0x130/0x360 [ 6481.239586][ T253] netlink_unicast+0x449/0x710 [ 6481.239586][ T253] netlink_sendmsg+0x723/0xbe0 [ 6481.239586][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6481.239586][ T253] ___sys_sendmsg+0xee/0x170 [ 6481.239586][ T253] __sys_sendmsg+0xcd/0x170 [ 6481.239586][ T253] do_syscall_64+0xc6/0x1e0 [ 6481.239586][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6481.239586][ T253] [ 6491.490255][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6491.490744][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6491.490744][ T253] dst_init+0x84/0x4a0 [ 6491.490744][ T253] dst_alloc+0x97/0x150 [ 6491.490744][ T253] ip6_dst_alloc+0x23/0x90 [ 6491.490744][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6491.490744][ T253] ip6_pol_route+0x56f/0x840 [ 6491.490744][ T253] fib6_rule_lookup+0x334/0x630 [ 6491.490744][ T253] ip6_route_output_flags+0x259/0x480 [ 6491.490744][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6491.490744][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6491.490744][ T253] netlink_rcv_skb+0x130/0x360 [ 6491.490744][ T253] netlink_unicast+0x449/0x710 [ 6491.490744][ T253] netlink_sendmsg+0x723/0xbe0 [ 6491.490744][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6491.490744][ T253] ___sys_sendmsg+0xee/0x170 [ 6491.490744][ T253] __sys_sendmsg+0xcd/0x170 [ 6491.490744][ T253] do_syscall_64+0xc6/0x1e0 [ 6491.490744][ T253] [ 6491.493403][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6491.493403][ T253] netdev_get_by_index+0x5e/0x80 [ 6491.493403][ T253] fib6_nh_init+0x3d8/0x1580 [ 6491.493403][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6491.493403][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6491.493403][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6491.493403][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6491.493403][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6491.493403][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6491.493403][ T253] addrconf_dad_begin+0x310/0x670 [ 6491.493403][ T253] addrconf_dad_work+0x10b/0xab0 [ 6491.493403][ T253] process_one_work+0x84d/0x18a0 [ 6491.493403][ T253] worker_thread+0x587/0xd30 [ 6491.493403][ T253] kthread+0x28a/0x350 [ 6491.493403][ T253] ret_from_fork+0x31/0x70 [ 6491.493403][ T253] ret_from_fork_asm+0x1a/0x30 [ 6491.493403][ T253] [ 6491.495992][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6491.495992][ T253] netdev_get_by_index+0x5e/0x80 [ 6491.495992][ T253] fib6_nh_init+0x3d8/0x1580 [ 6491.495992][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6491.495992][ T253] ip6_route_add+0x1c/0x140 [ 6491.495992][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6491.495992][ T253] inet6_addr_add+0x4f8/0xa40 [ 6491.495992][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6491.495992][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6491.495992][ T253] netlink_rcv_skb+0x130/0x360 [ 6491.495992][ T253] netlink_unicast+0x449/0x710 [ 6491.495992][ T253] netlink_sendmsg+0x723/0xbe0 [ 6491.495992][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6491.495992][ T253] ___sys_sendmsg+0xee/0x170 [ 6491.495992][ T253] __sys_sendmsg+0xcd/0x170 [ 6491.495992][ T253] do_syscall_64+0xc6/0x1e0 [ 6491.495992][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6491.495992][ T253] [ 6491.498713][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6491.498713][ T253] netdev_get_by_index+0x5e/0x80 [ 6491.498713][ T253] fib6_nh_init+0x3d8/0x1580 [ 6491.498713][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6491.498713][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6491.498713][ T253] ipv6_add_addr+0x411/0x2000 [ 6491.498713][ T253] inet6_addr_add+0x30e/0xa40 [ 6491.498713][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6491.498713][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6491.498713][ T253] netlink_rcv_skb+0x130/0x360 [ 6491.498713][ T253] netlink_unicast+0x449/0x710 [ 6491.498713][ T253] netlink_sendmsg+0x723/0xbe0 [ 6491.498713][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6491.498713][ T253] ___sys_sendmsg+0xee/0x170 [ 6491.498713][ T253] __sys_sendmsg+0xcd/0x170 [ 6491.498713][ T253] do_syscall_64+0xc6/0x1e0 [ 6491.498713][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6491.498713][ T253] [ 6491.501440][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6491.501440][ T253] netdev_get_by_index+0x5e/0x80 [ 6491.501440][ T253] fib6_nh_init+0x3d8/0x1580 [ 6491.501440][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6491.501440][ T253] ip6_route_add+0x1c/0x140 [ 6491.501440][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6491.501440][ T253] addrconf_add_dev+0xe2/0x170 [ 6491.501440][ T253] inet6_addr_add+0x12f/0xa40 [ 6491.501440][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6491.501440][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6491.501440][ T253] netlink_rcv_skb+0x130/0x360 [ 6491.501440][ T253] netlink_unicast+0x449/0x710 [ 6491.501440][ T253] netlink_sendmsg+0x723/0xbe0 [ 6491.501440][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6491.501440][ T253] ___sys_sendmsg+0xee/0x170 [ 6491.501440][ T253] __sys_sendmsg+0xcd/0x170 [ 6491.501440][ T253] do_syscall_64+0xc6/0x1e0 [ 6491.501440][ T253] [ 6491.504105][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6491.504105][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6491.504105][ T253] ipv6_find_idev+0x102/0x170 [ 6491.504105][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6491.504105][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6491.504105][ T253] netlink_rcv_skb+0x130/0x360 [ 6491.504105][ T253] netlink_unicast+0x449/0x710 [ 6491.504105][ T253] netlink_sendmsg+0x723/0xbe0 [ 6491.504105][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6491.504105][ T253] ___sys_sendmsg+0xee/0x170 [ 6491.504105][ T253] __sys_sendmsg+0xcd/0x170 [ 6491.504105][ T253] do_syscall_64+0xc6/0x1e0 [ 6491.504105][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6491.504105][ T253] [ 6491.506194][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6491.506194][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6491.506194][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6491.506194][ T253] ipv6_find_idev+0x102/0x170 [ 6491.506194][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6491.506194][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6491.506194][ T253] netlink_rcv_skb+0x130/0x360 [ 6491.506194][ T253] netlink_unicast+0x449/0x710 [ 6491.506194][ T253] netlink_sendmsg+0x723/0xbe0 [ 6491.506194][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6491.506194][ T253] ___sys_sendmsg+0xee/0x170 [ 6491.506194][ T253] __sys_sendmsg+0xcd/0x170 [ 6491.506194][ T253] do_syscall_64+0xc6/0x1e0 [ 6491.506194][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6491.506194][ T253] [ 6501.754340][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6501.754830][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6501.754830][ T253] dst_init+0x84/0x4a0 [ 6501.754830][ T253] dst_alloc+0x97/0x150 [ 6501.754830][ T253] ip6_dst_alloc+0x23/0x90 [ 6501.754830][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6501.754830][ T253] ip6_pol_route+0x56f/0x840 [ 6501.754830][ T253] fib6_rule_lookup+0x334/0x630 [ 6501.754830][ T253] ip6_route_output_flags+0x259/0x480 [ 6501.754830][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6501.754830][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6501.754830][ T253] netlink_rcv_skb+0x130/0x360 [ 6501.754830][ T253] netlink_unicast+0x449/0x710 [ 6501.754830][ T253] netlink_sendmsg+0x723/0xbe0 [ 6501.754830][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6501.754830][ T253] ___sys_sendmsg+0xee/0x170 [ 6501.754830][ T253] __sys_sendmsg+0xcd/0x170 [ 6501.754830][ T253] do_syscall_64+0xc6/0x1e0 [ 6501.754830][ T253] [ 6501.757031][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6501.757031][ T253] netdev_get_by_index+0x5e/0x80 [ 6501.757031][ T253] fib6_nh_init+0x3d8/0x1580 [ 6501.757031][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6501.757031][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6501.757031][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6501.757031][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6501.757031][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6501.757031][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6501.757031][ T253] addrconf_dad_begin+0x310/0x670 [ 6501.757031][ T253] addrconf_dad_work+0x10b/0xab0 [ 6501.757031][ T253] process_one_work+0x84d/0x18a0 [ 6501.757031][ T253] worker_thread+0x587/0xd30 [ 6501.757031][ T253] kthread+0x28a/0x350 [ 6501.757031][ T253] ret_from_fork+0x31/0x70 [ 6501.757031][ T253] ret_from_fork_asm+0x1a/0x30 [ 6501.757031][ T253] [ 6501.759191][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6501.759191][ T253] netdev_get_by_index+0x5e/0x80 [ 6501.759191][ T253] fib6_nh_init+0x3d8/0x1580 [ 6501.759191][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6501.759191][ T253] ip6_route_add+0x1c/0x140 [ 6501.759191][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6501.759191][ T253] inet6_addr_add+0x4f8/0xa40 [ 6501.759191][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6501.759191][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6501.759191][ T253] netlink_rcv_skb+0x130/0x360 [ 6501.759191][ T253] netlink_unicast+0x449/0x710 [ 6501.759191][ T253] netlink_sendmsg+0x723/0xbe0 [ 6501.759191][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6501.759191][ T253] ___sys_sendmsg+0xee/0x170 [ 6501.759191][ T253] __sys_sendmsg+0xcd/0x170 [ 6501.759191][ T253] do_syscall_64+0xc6/0x1e0 [ 6501.759191][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6501.759191][ T253] [ 6501.761444][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6501.761444][ T253] netdev_get_by_index+0x5e/0x80 [ 6501.761444][ T253] fib6_nh_init+0x3d8/0x1580 [ 6501.761444][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6501.761444][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6501.761444][ T253] ipv6_add_addr+0x411/0x2000 [ 6501.761444][ T253] inet6_addr_add+0x30e/0xa40 [ 6501.761444][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6501.761444][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6501.761444][ T253] netlink_rcv_skb+0x130/0x360 [ 6501.761444][ T253] netlink_unicast+0x449/0x710 [ 6501.761444][ T253] netlink_sendmsg+0x723/0xbe0 [ 6501.761444][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6501.761444][ T253] ___sys_sendmsg+0xee/0x170 [ 6501.761444][ T253] __sys_sendmsg+0xcd/0x170 [ 6501.761444][ T253] do_syscall_64+0xc6/0x1e0 [ 6501.761444][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6501.761444][ T253] [ 6501.763687][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6501.763687][ T253] netdev_get_by_index+0x5e/0x80 [ 6501.763687][ T253] fib6_nh_init+0x3d8/0x1580 [ 6501.763687][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6501.763687][ T253] ip6_route_add+0x1c/0x140 [ 6501.763687][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6501.763687][ T253] addrconf_add_dev+0xe2/0x170 [ 6501.763687][ T253] inet6_addr_add+0x12f/0xa40 [ 6501.763687][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6501.763687][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6501.763687][ T253] netlink_rcv_skb+0x130/0x360 [ 6501.763687][ T253] netlink_unicast+0x449/0x710 [ 6501.763687][ T253] netlink_sendmsg+0x723/0xbe0 [ 6501.763687][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6501.763687][ T253] ___sys_sendmsg+0xee/0x170 [ 6501.763687][ T253] __sys_sendmsg+0xcd/0x170 [ 6501.763687][ T253] do_syscall_64+0xc6/0x1e0 [ 6501.763687][ T253] [ 6501.765890][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6501.765890][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6501.765890][ T253] ipv6_find_idev+0x102/0x170 [ 6501.765890][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6501.765890][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6501.765890][ T253] netlink_rcv_skb+0x130/0x360 [ 6501.765890][ T253] netlink_unicast+0x449/0x710 [ 6501.765890][ T253] netlink_sendmsg+0x723/0xbe0 [ 6501.765890][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6501.765890][ T253] ___sys_sendmsg+0xee/0x170 [ 6501.765890][ T253] __sys_sendmsg+0xcd/0x170 [ 6501.765890][ T253] do_syscall_64+0xc6/0x1e0 [ 6501.765890][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6501.765890][ T253] [ 6501.767613][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6501.767613][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6501.767613][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6501.767613][ T253] ipv6_find_idev+0x102/0x170 [ 6501.767613][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6501.767613][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6501.767613][ T253] netlink_rcv_skb+0x130/0x360 [ 6501.767613][ T253] netlink_unicast+0x449/0x710 [ 6501.767613][ T253] netlink_sendmsg+0x723/0xbe0 [ 6501.767613][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6501.767613][ T253] ___sys_sendmsg+0xee/0x170 [ 6501.767613][ T253] __sys_sendmsg+0xcd/0x170 [ 6501.767613][ T253] do_syscall_64+0xc6/0x1e0 [ 6501.767613][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6501.767613][ T253] [ 6512.018426][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6512.018896][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6512.018896][ T253] dst_init+0x84/0x4a0 [ 6512.018896][ T253] dst_alloc+0x97/0x150 [ 6512.018896][ T253] ip6_dst_alloc+0x23/0x90 [ 6512.018896][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6512.018896][ T253] ip6_pol_route+0x56f/0x840 [ 6512.018896][ T253] fib6_rule_lookup+0x334/0x630 [ 6512.018896][ T253] ip6_route_output_flags+0x259/0x480 [ 6512.018896][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6512.018896][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6512.018896][ T253] netlink_rcv_skb+0x130/0x360 [ 6512.018896][ T253] netlink_unicast+0x449/0x710 [ 6512.018896][ T253] netlink_sendmsg+0x723/0xbe0 [ 6512.018896][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6512.018896][ T253] ___sys_sendmsg+0xee/0x170 [ 6512.018896][ T253] __sys_sendmsg+0xcd/0x170 [ 6512.018896][ T253] do_syscall_64+0xc6/0x1e0 [ 6512.018896][ T253] [ 6512.021322][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6512.021322][ T253] netdev_get_by_index+0x5e/0x80 [ 6512.021322][ T253] fib6_nh_init+0x3d8/0x1580 [ 6512.021322][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6512.021322][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6512.021322][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6512.021322][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6512.021322][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6512.021322][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6512.021322][ T253] addrconf_dad_begin+0x310/0x670 [ 6512.021322][ T253] addrconf_dad_work+0x10b/0xab0 [ 6512.021322][ T253] process_one_work+0x84d/0x18a0 [ 6512.021322][ T253] worker_thread+0x587/0xd30 [ 6512.021322][ T253] kthread+0x28a/0x350 [ 6512.021322][ T253] ret_from_fork+0x31/0x70 [ 6512.021322][ T253] ret_from_fork_asm+0x1a/0x30 [ 6512.021322][ T253] [ 6512.023638][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6512.023638][ T253] netdev_get_by_index+0x5e/0x80 [ 6512.023638][ T253] fib6_nh_init+0x3d8/0x1580 [ 6512.023638][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6512.023638][ T253] ip6_route_add+0x1c/0x140 [ 6512.023638][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6512.023638][ T253] inet6_addr_add+0x4f8/0xa40 [ 6512.023638][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6512.023638][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6512.023638][ T253] netlink_rcv_skb+0x130/0x360 [ 6512.023638][ T253] netlink_unicast+0x449/0x710 [ 6512.023638][ T253] netlink_sendmsg+0x723/0xbe0 [ 6512.023638][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6512.023638][ T253] ___sys_sendmsg+0xee/0x170 [ 6512.023638][ T253] __sys_sendmsg+0xcd/0x170 [ 6512.023638][ T253] do_syscall_64+0xc6/0x1e0 [ 6512.023638][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6512.023638][ T253] [ 6512.026037][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6512.026037][ T253] netdev_get_by_index+0x5e/0x80 [ 6512.026037][ T253] fib6_nh_init+0x3d8/0x1580 [ 6512.026037][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6512.026037][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6512.026037][ T253] ipv6_add_addr+0x411/0x2000 [ 6512.026037][ T253] inet6_addr_add+0x30e/0xa40 [ 6512.026037][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6512.026037][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6512.026037][ T253] netlink_rcv_skb+0x130/0x360 [ 6512.026037][ T253] netlink_unicast+0x449/0x710 [ 6512.026037][ T253] netlink_sendmsg+0x723/0xbe0 [ 6512.026037][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6512.026037][ T253] ___sys_sendmsg+0xee/0x170 [ 6512.026037][ T253] __sys_sendmsg+0xcd/0x170 [ 6512.026037][ T253] do_syscall_64+0xc6/0x1e0 [ 6512.026037][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6512.026037][ T253] [ 6512.028395][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6512.028395][ T253] netdev_get_by_index+0x5e/0x80 [ 6512.028395][ T253] fib6_nh_init+0x3d8/0x1580 [ 6512.028395][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6512.028395][ T253] ip6_route_add+0x1c/0x140 [ 6512.028395][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6512.028395][ T253] addrconf_add_dev+0xe2/0x170 [ 6512.028395][ T253] inet6_addr_add+0x12f/0xa40 [ 6512.028395][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6512.028395][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6512.028395][ T253] netlink_rcv_skb+0x130/0x360 [ 6512.028395][ T253] netlink_unicast+0x449/0x710 [ 6512.028395][ T253] netlink_sendmsg+0x723/0xbe0 [ 6512.028395][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6512.028395][ T253] ___sys_sendmsg+0xee/0x170 [ 6512.028395][ T253] __sys_sendmsg+0xcd/0x170 [ 6512.028395][ T253] do_syscall_64+0xc6/0x1e0 [ 6512.028395][ T253] [ 6512.030830][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6512.030830][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6512.030830][ T253] ipv6_find_idev+0x102/0x170 [ 6512.030830][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6512.030830][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6512.030830][ T253] netlink_rcv_skb+0x130/0x360 [ 6512.030830][ T253] netlink_unicast+0x449/0x710 [ 6512.030830][ T253] netlink_sendmsg+0x723/0xbe0 [ 6512.030830][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6512.030830][ T253] ___sys_sendmsg+0xee/0x170 [ 6512.030830][ T253] __sys_sendmsg+0xcd/0x170 [ 6512.030830][ T253] do_syscall_64+0xc6/0x1e0 [ 6512.030830][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6512.030830][ T253] [ 6512.032712][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6512.032712][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6512.032712][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6512.032712][ T253] ipv6_find_idev+0x102/0x170 [ 6512.032712][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6512.032712][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6512.032712][ T253] netlink_rcv_skb+0x130/0x360 [ 6512.032712][ T253] netlink_unicast+0x449/0x710 [ 6512.032712][ T253] netlink_sendmsg+0x723/0xbe0 [ 6512.032712][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6512.032712][ T253] ___sys_sendmsg+0xee/0x170 [ 6512.032712][ T253] __sys_sendmsg+0xcd/0x170 [ 6512.032712][ T253] do_syscall_64+0xc6/0x1e0 [ 6512.032712][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6512.032712][ T253] [ 6522.282360][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6522.282862][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6522.282862][ T253] dst_init+0x84/0x4a0 [ 6522.282862][ T253] dst_alloc+0x97/0x150 [ 6522.282862][ T253] ip6_dst_alloc+0x23/0x90 [ 6522.282862][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6522.282862][ T253] ip6_pol_route+0x56f/0x840 [ 6522.282862][ T253] fib6_rule_lookup+0x334/0x630 [ 6522.282862][ T253] ip6_route_output_flags+0x259/0x480 [ 6522.282862][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6522.282862][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6522.282862][ T253] netlink_rcv_skb+0x130/0x360 [ 6522.282862][ T253] netlink_unicast+0x449/0x710 [ 6522.282862][ T253] netlink_sendmsg+0x723/0xbe0 [ 6522.282862][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6522.282862][ T253] ___sys_sendmsg+0xee/0x170 [ 6522.282862][ T253] __sys_sendmsg+0xcd/0x170 [ 6522.282862][ T253] do_syscall_64+0xc6/0x1e0 [ 6522.282862][ T253] [ 6522.285088][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6522.285088][ T253] netdev_get_by_index+0x5e/0x80 [ 6522.285088][ T253] fib6_nh_init+0x3d8/0x1580 [ 6522.285088][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6522.285088][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6522.285088][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6522.285088][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6522.285088][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6522.285088][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6522.285088][ T253] addrconf_dad_begin+0x310/0x670 [ 6522.285088][ T253] addrconf_dad_work+0x10b/0xab0 [ 6522.285088][ T253] process_one_work+0x84d/0x18a0 [ 6522.285088][ T253] worker_thread+0x587/0xd30 [ 6522.285088][ T253] kthread+0x28a/0x350 [ 6522.285088][ T253] ret_from_fork+0x31/0x70 [ 6522.285088][ T253] ret_from_fork_asm+0x1a/0x30 [ 6522.285088][ T253] [ 6522.287258][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6522.287258][ T253] netdev_get_by_index+0x5e/0x80 [ 6522.287258][ T253] fib6_nh_init+0x3d8/0x1580 [ 6522.287258][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6522.287258][ T253] ip6_route_add+0x1c/0x140 [ 6522.287258][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6522.287258][ T253] inet6_addr_add+0x4f8/0xa40 [ 6522.287258][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6522.287258][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6522.287258][ T253] netlink_rcv_skb+0x130/0x360 [ 6522.287258][ T253] netlink_unicast+0x449/0x710 [ 6522.287258][ T253] netlink_sendmsg+0x723/0xbe0 [ 6522.287258][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6522.287258][ T253] ___sys_sendmsg+0xee/0x170 [ 6522.287258][ T253] __sys_sendmsg+0xcd/0x170 [ 6522.287258][ T253] do_syscall_64+0xc6/0x1e0 [ 6522.287258][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6522.287258][ T253] [ 6522.289521][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6522.289521][ T253] netdev_get_by_index+0x5e/0x80 [ 6522.289521][ T253] fib6_nh_init+0x3d8/0x1580 [ 6522.289521][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6522.289521][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6522.289521][ T253] ipv6_add_addr+0x411/0x2000 [ 6522.289521][ T253] inet6_addr_add+0x30e/0xa40 [ 6522.289521][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6522.289521][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6522.289521][ T253] netlink_rcv_skb+0x130/0x360 [ 6522.289521][ T253] netlink_unicast+0x449/0x710 [ 6522.289521][ T253] netlink_sendmsg+0x723/0xbe0 [ 6522.289521][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6522.289521][ T253] ___sys_sendmsg+0xee/0x170 [ 6522.289521][ T253] __sys_sendmsg+0xcd/0x170 [ 6522.289521][ T253] do_syscall_64+0xc6/0x1e0 [ 6522.289521][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6522.289521][ T253] [ 6522.291770][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6522.291770][ T253] netdev_get_by_index+0x5e/0x80 [ 6522.291770][ T253] fib6_nh_init+0x3d8/0x1580 [ 6522.291770][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6522.291770][ T253] ip6_route_add+0x1c/0x140 [ 6522.291770][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6522.291770][ T253] addrconf_add_dev+0xe2/0x170 [ 6522.291770][ T253] inet6_addr_add+0x12f/0xa40 [ 6522.291770][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6522.291770][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6522.291770][ T253] netlink_rcv_skb+0x130/0x360 [ 6522.291770][ T253] netlink_unicast+0x449/0x710 [ 6522.291770][ T253] netlink_sendmsg+0x723/0xbe0 [ 6522.291770][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6522.291770][ T253] ___sys_sendmsg+0xee/0x170 [ 6522.291770][ T253] __sys_sendmsg+0xcd/0x170 [ 6522.291770][ T253] do_syscall_64+0xc6/0x1e0 [ 6522.291770][ T253] [ 6522.293993][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6522.293993][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6522.293993][ T253] ipv6_find_idev+0x102/0x170 [ 6522.293993][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6522.293993][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6522.293993][ T253] netlink_rcv_skb+0x130/0x360 [ 6522.293993][ T253] netlink_unicast+0x449/0x710 [ 6522.293993][ T253] netlink_sendmsg+0x723/0xbe0 [ 6522.293993][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6522.293993][ T253] ___sys_sendmsg+0xee/0x170 [ 6522.293993][ T253] __sys_sendmsg+0xcd/0x170 [ 6522.293993][ T253] do_syscall_64+0xc6/0x1e0 [ 6522.293993][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6522.293993][ T253] [ 6522.296243][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6522.296243][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6522.296243][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6522.296243][ T253] ipv6_find_idev+0x102/0x170 [ 6522.296243][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6522.296243][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6522.296243][ T253] netlink_rcv_skb+0x130/0x360 [ 6522.296243][ T253] netlink_unicast+0x449/0x710 [ 6522.296243][ T253] netlink_sendmsg+0x723/0xbe0 [ 6522.296243][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6522.296243][ T253] ___sys_sendmsg+0xee/0x170 [ 6522.296243][ T253] __sys_sendmsg+0xcd/0x170 [ 6522.296243][ T253] do_syscall_64+0xc6/0x1e0 [ 6522.296243][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6522.296243][ T253] [ 6532.546320][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6532.546799][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6532.546799][ T253] dst_init+0x84/0x4a0 [ 6532.546799][ T253] dst_alloc+0x97/0x150 [ 6532.546799][ T253] ip6_dst_alloc+0x23/0x90 [ 6532.546799][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6532.546799][ T253] ip6_pol_route+0x56f/0x840 [ 6532.546799][ T253] fib6_rule_lookup+0x334/0x630 [ 6532.546799][ T253] ip6_route_output_flags+0x259/0x480 [ 6532.546799][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6532.546799][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6532.546799][ T253] netlink_rcv_skb+0x130/0x360 [ 6532.546799][ T253] netlink_unicast+0x449/0x710 [ 6532.546799][ T253] netlink_sendmsg+0x723/0xbe0 [ 6532.546799][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6532.546799][ T253] ___sys_sendmsg+0xee/0x170 [ 6532.546799][ T253] __sys_sendmsg+0xcd/0x170 [ 6532.546799][ T253] do_syscall_64+0xc6/0x1e0 [ 6532.546799][ T253] [ 6532.549008][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6532.549008][ T253] netdev_get_by_index+0x5e/0x80 [ 6532.549008][ T253] fib6_nh_init+0x3d8/0x1580 [ 6532.549008][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6532.549008][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6532.549008][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6532.549008][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6532.549008][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6532.549008][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6532.549008][ T253] addrconf_dad_begin+0x310/0x670 [ 6532.549008][ T253] addrconf_dad_work+0x10b/0xab0 [ 6532.549008][ T253] process_one_work+0x84d/0x18a0 [ 6532.549008][ T253] worker_thread+0x587/0xd30 [ 6532.549008][ T253] kthread+0x28a/0x350 [ 6532.549008][ T253] ret_from_fork+0x31/0x70 [ 6532.549008][ T253] ret_from_fork_asm+0x1a/0x30 [ 6532.549008][ T253] [ 6532.551217][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6532.551217][ T253] netdev_get_by_index+0x5e/0x80 [ 6532.551217][ T253] fib6_nh_init+0x3d8/0x1580 [ 6532.551217][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6532.551217][ T253] ip6_route_add+0x1c/0x140 [ 6532.551217][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6532.551217][ T253] inet6_addr_add+0x4f8/0xa40 [ 6532.551217][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6532.551217][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6532.551217][ T253] netlink_rcv_skb+0x130/0x360 [ 6532.551217][ T253] netlink_unicast+0x449/0x710 [ 6532.551217][ T253] netlink_sendmsg+0x723/0xbe0 [ 6532.551217][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6532.551217][ T253] ___sys_sendmsg+0xee/0x170 [ 6532.551217][ T253] __sys_sendmsg+0xcd/0x170 [ 6532.551217][ T253] do_syscall_64+0xc6/0x1e0 [ 6532.551217][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6532.551217][ T253] [ 6532.553516][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6532.553516][ T253] netdev_get_by_index+0x5e/0x80 [ 6532.553516][ T253] fib6_nh_init+0x3d8/0x1580 [ 6532.553516][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6532.553516][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6532.553516][ T253] ipv6_add_addr+0x411/0x2000 [ 6532.553516][ T253] inet6_addr_add+0x30e/0xa40 [ 6532.553516][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6532.553516][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6532.553516][ T253] netlink_rcv_skb+0x130/0x360 [ 6532.553516][ T253] netlink_unicast+0x449/0x710 [ 6532.553516][ T253] netlink_sendmsg+0x723/0xbe0 [ 6532.553516][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6532.553516][ T253] ___sys_sendmsg+0xee/0x170 [ 6532.553516][ T253] __sys_sendmsg+0xcd/0x170 [ 6532.553516][ T253] do_syscall_64+0xc6/0x1e0 [ 6532.553516][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6532.553516][ T253] [ 6532.555801][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6532.555801][ T253] netdev_get_by_index+0x5e/0x80 [ 6532.555801][ T253] fib6_nh_init+0x3d8/0x1580 [ 6532.555801][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6532.555801][ T253] ip6_route_add+0x1c/0x140 [ 6532.555801][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6532.555801][ T253] addrconf_add_dev+0xe2/0x170 [ 6532.555801][ T253] inet6_addr_add+0x12f/0xa40 [ 6532.555801][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6532.555801][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6532.555801][ T253] netlink_rcv_skb+0x130/0x360 [ 6532.555801][ T253] netlink_unicast+0x449/0x710 [ 6532.555801][ T253] netlink_sendmsg+0x723/0xbe0 [ 6532.555801][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6532.555801][ T253] ___sys_sendmsg+0xee/0x170 [ 6532.555801][ T253] __sys_sendmsg+0xcd/0x170 [ 6532.555801][ T253] do_syscall_64+0xc6/0x1e0 [ 6532.555801][ T253] [ 6532.557970][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6532.557970][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6532.557970][ T253] ipv6_find_idev+0x102/0x170 [ 6532.557970][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6532.557970][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6532.557970][ T253] netlink_rcv_skb+0x130/0x360 [ 6532.557970][ T253] netlink_unicast+0x449/0x710 [ 6532.557970][ T253] netlink_sendmsg+0x723/0xbe0 [ 6532.557970][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6532.557970][ T253] ___sys_sendmsg+0xee/0x170 [ 6532.557970][ T253] __sys_sendmsg+0xcd/0x170 [ 6532.557970][ T253] do_syscall_64+0xc6/0x1e0 [ 6532.557970][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6532.557970][ T253] [ 6532.559700][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6532.559700][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6532.559700][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6532.559700][ T253] ipv6_find_idev+0x102/0x170 [ 6532.559700][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6532.559700][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6532.559700][ T253] netlink_rcv_skb+0x130/0x360 [ 6532.559700][ T253] netlink_unicast+0x449/0x710 [ 6532.559700][ T253] netlink_sendmsg+0x723/0xbe0 [ 6532.559700][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6532.559700][ T253] ___sys_sendmsg+0xee/0x170 [ 6532.559700][ T253] __sys_sendmsg+0xcd/0x170 [ 6532.559700][ T253] do_syscall_64+0xc6/0x1e0 [ 6532.559700][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6532.559700][ T253] [ 6542.810328][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6542.810790][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6542.810790][ T253] dst_init+0x84/0x4a0 [ 6542.810790][ T253] dst_alloc+0x97/0x150 [ 6542.810790][ T253] ip6_dst_alloc+0x23/0x90 [ 6542.810790][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6542.810790][ T253] ip6_pol_route+0x56f/0x840 [ 6542.810790][ T253] fib6_rule_lookup+0x334/0x630 [ 6542.810790][ T253] ip6_route_output_flags+0x259/0x480 [ 6542.810790][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6542.810790][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6542.810790][ T253] netlink_rcv_skb+0x130/0x360 [ 6542.810790][ T253] netlink_unicast+0x449/0x710 [ 6542.810790][ T253] netlink_sendmsg+0x723/0xbe0 [ 6542.810790][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6542.810790][ T253] ___sys_sendmsg+0xee/0x170 [ 6542.810790][ T253] __sys_sendmsg+0xcd/0x170 [ 6542.810790][ T253] do_syscall_64+0xc6/0x1e0 [ 6542.810790][ T253] [ 6542.813197][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6542.813197][ T253] netdev_get_by_index+0x5e/0x80 [ 6542.813197][ T253] fib6_nh_init+0x3d8/0x1580 [ 6542.813197][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6542.813197][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6542.813197][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6542.813197][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6542.813197][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6542.813197][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6542.813197][ T253] addrconf_dad_begin+0x310/0x670 [ 6542.813197][ T253] addrconf_dad_work+0x10b/0xab0 [ 6542.813197][ T253] process_one_work+0x84d/0x18a0 [ 6542.813197][ T253] worker_thread+0x587/0xd30 [ 6542.813197][ T253] kthread+0x28a/0x350 [ 6542.813197][ T253] ret_from_fork+0x31/0x70 [ 6542.813197][ T253] ret_from_fork_asm+0x1a/0x30 [ 6542.813197][ T253] [ 6542.815547][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6542.815547][ T253] netdev_get_by_index+0x5e/0x80 [ 6542.815547][ T253] fib6_nh_init+0x3d8/0x1580 [ 6542.815547][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6542.815547][ T253] ip6_route_add+0x1c/0x140 [ 6542.815547][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6542.815547][ T253] inet6_addr_add+0x4f8/0xa40 [ 6542.815547][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6542.815547][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6542.815547][ T253] netlink_rcv_skb+0x130/0x360 [ 6542.815547][ T253] netlink_unicast+0x449/0x710 [ 6542.815547][ T253] netlink_sendmsg+0x723/0xbe0 [ 6542.815547][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6542.815547][ T253] ___sys_sendmsg+0xee/0x170 [ 6542.815547][ T253] __sys_sendmsg+0xcd/0x170 [ 6542.815547][ T253] do_syscall_64+0xc6/0x1e0 [ 6542.815547][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6542.815547][ T253] [ 6542.817925][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6542.817925][ T253] netdev_get_by_index+0x5e/0x80 [ 6542.817925][ T253] fib6_nh_init+0x3d8/0x1580 [ 6542.817925][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6542.817925][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6542.817925][ T253] ipv6_add_addr+0x411/0x2000 [ 6542.817925][ T253] inet6_addr_add+0x30e/0xa40 [ 6542.817925][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6542.817925][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6542.817925][ T253] netlink_rcv_skb+0x130/0x360 [ 6542.817925][ T253] netlink_unicast+0x449/0x710 [ 6542.817925][ T253] netlink_sendmsg+0x723/0xbe0 [ 6542.817925][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6542.817925][ T253] ___sys_sendmsg+0xee/0x170 [ 6542.817925][ T253] __sys_sendmsg+0xcd/0x170 [ 6542.817925][ T253] do_syscall_64+0xc6/0x1e0 [ 6542.817925][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6542.817925][ T253] [ 6542.820358][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6542.820358][ T253] netdev_get_by_index+0x5e/0x80 [ 6542.820358][ T253] fib6_nh_init+0x3d8/0x1580 [ 6542.820358][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6542.820358][ T253] ip6_route_add+0x1c/0x140 [ 6542.820358][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6542.820358][ T253] addrconf_add_dev+0xe2/0x170 [ 6542.820358][ T253] inet6_addr_add+0x12f/0xa40 [ 6542.820358][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6542.820358][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6542.820358][ T253] netlink_rcv_skb+0x130/0x360 [ 6542.820358][ T253] netlink_unicast+0x449/0x710 [ 6542.820358][ T253] netlink_sendmsg+0x723/0xbe0 [ 6542.820358][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6542.820358][ T253] ___sys_sendmsg+0xee/0x170 [ 6542.820358][ T253] __sys_sendmsg+0xcd/0x170 [ 6542.820358][ T253] do_syscall_64+0xc6/0x1e0 [ 6542.820358][ T253] [ 6542.822751][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6542.822751][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6542.822751][ T253] ipv6_find_idev+0x102/0x170 [ 6542.822751][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6542.822751][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6542.822751][ T253] netlink_rcv_skb+0x130/0x360 [ 6542.822751][ T253] netlink_unicast+0x449/0x710 [ 6542.822751][ T253] netlink_sendmsg+0x723/0xbe0 [ 6542.822751][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6542.822751][ T253] ___sys_sendmsg+0xee/0x170 [ 6542.822751][ T253] __sys_sendmsg+0xcd/0x170 [ 6542.822751][ T253] do_syscall_64+0xc6/0x1e0 [ 6542.822751][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6542.822751][ T253] [ 6542.824609][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6542.824609][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6542.824609][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6542.824609][ T253] ipv6_find_idev+0x102/0x170 [ 6542.824609][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6542.824609][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6542.824609][ T253] netlink_rcv_skb+0x130/0x360 [ 6542.824609][ T253] netlink_unicast+0x449/0x710 [ 6542.824609][ T253] netlink_sendmsg+0x723/0xbe0 [ 6542.824609][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6542.824609][ T253] ___sys_sendmsg+0xee/0x170 [ 6542.824609][ T253] __sys_sendmsg+0xcd/0x170 [ 6542.824609][ T253] do_syscall_64+0xc6/0x1e0 [ 6542.824609][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6542.824609][ T253] [ 6552.842407][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6552.842904][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6552.842904][ T253] dst_init+0x84/0x4a0 [ 6552.842904][ T253] dst_alloc+0x97/0x150 [ 6552.842904][ T253] ip6_dst_alloc+0x23/0x90 [ 6552.842904][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6552.842904][ T253] ip6_pol_route+0x56f/0x840 [ 6552.842904][ T253] fib6_rule_lookup+0x334/0x630 [ 6552.842904][ T253] ip6_route_output_flags+0x259/0x480 [ 6552.842904][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6552.842904][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6552.842904][ T253] netlink_rcv_skb+0x130/0x360 [ 6552.842904][ T253] netlink_unicast+0x449/0x710 [ 6552.842904][ T253] netlink_sendmsg+0x723/0xbe0 [ 6552.842904][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6552.842904][ T253] ___sys_sendmsg+0xee/0x170 [ 6552.842904][ T253] __sys_sendmsg+0xcd/0x170 [ 6552.842904][ T253] do_syscall_64+0xc6/0x1e0 [ 6552.842904][ T253] [ 6552.845118][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6552.845118][ T253] netdev_get_by_index+0x5e/0x80 [ 6552.845118][ T253] fib6_nh_init+0x3d8/0x1580 [ 6552.845118][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6552.845118][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6552.845118][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6552.845118][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6552.845118][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6552.845118][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6552.845118][ T253] addrconf_dad_begin+0x310/0x670 [ 6552.845118][ T253] addrconf_dad_work+0x10b/0xab0 [ 6552.845118][ T253] process_one_work+0x84d/0x18a0 [ 6552.845118][ T253] worker_thread+0x587/0xd30 [ 6552.845118][ T253] kthread+0x28a/0x350 [ 6552.845118][ T253] ret_from_fork+0x31/0x70 [ 6552.845118][ T253] ret_from_fork_asm+0x1a/0x30 [ 6552.845118][ T253] [ 6552.847434][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6552.847434][ T253] netdev_get_by_index+0x5e/0x80 [ 6552.847434][ T253] fib6_nh_init+0x3d8/0x1580 [ 6552.847434][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6552.847434][ T253] ip6_route_add+0x1c/0x140 [ 6552.847434][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6552.847434][ T253] inet6_addr_add+0x4f8/0xa40 [ 6552.847434][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6552.847434][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6552.847434][ T253] netlink_rcv_skb+0x130/0x360 [ 6552.847434][ T253] netlink_unicast+0x449/0x710 [ 6552.847434][ T253] netlink_sendmsg+0x723/0xbe0 [ 6552.847434][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6552.847434][ T253] ___sys_sendmsg+0xee/0x170 [ 6552.847434][ T253] __sys_sendmsg+0xcd/0x170 [ 6552.847434][ T253] do_syscall_64+0xc6/0x1e0 [ 6552.847434][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6552.847434][ T253] [ 6552.849815][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6552.849815][ T253] netdev_get_by_index+0x5e/0x80 [ 6552.849815][ T253] fib6_nh_init+0x3d8/0x1580 [ 6552.849815][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6552.849815][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6552.849815][ T253] ipv6_add_addr+0x411/0x2000 [ 6552.849815][ T253] inet6_addr_add+0x30e/0xa40 [ 6552.849815][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6552.849815][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6552.849815][ T253] netlink_rcv_skb+0x130/0x360 [ 6552.849815][ T253] netlink_unicast+0x449/0x710 [ 6552.849815][ T253] netlink_sendmsg+0x723/0xbe0 [ 6552.849815][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6552.849815][ T253] ___sys_sendmsg+0xee/0x170 [ 6552.849815][ T253] __sys_sendmsg+0xcd/0x170 [ 6552.849815][ T253] do_syscall_64+0xc6/0x1e0 [ 6552.849815][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6552.849815][ T253] [ 6552.852168][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6552.852168][ T253] netdev_get_by_index+0x5e/0x80 [ 6552.852168][ T253] fib6_nh_init+0x3d8/0x1580 [ 6552.852168][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6552.852168][ T253] ip6_route_add+0x1c/0x140 [ 6552.852168][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6552.852168][ T253] addrconf_add_dev+0xe2/0x170 [ 6552.852168][ T253] inet6_addr_add+0x12f/0xa40 [ 6552.852168][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6552.852168][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6552.852168][ T253] netlink_rcv_skb+0x130/0x360 [ 6552.852168][ T253] netlink_unicast+0x449/0x710 [ 6552.852168][ T253] netlink_sendmsg+0x723/0xbe0 [ 6552.852168][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6552.852168][ T253] ___sys_sendmsg+0xee/0x170 [ 6552.852168][ T253] __sys_sendmsg+0xcd/0x170 [ 6552.852168][ T253] do_syscall_64+0xc6/0x1e0 [ 6552.852168][ T253] [ 6552.854479][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6552.854479][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6552.854479][ T253] ipv6_find_idev+0x102/0x170 [ 6552.854479][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6552.854479][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6552.854479][ T253] netlink_rcv_skb+0x130/0x360 [ 6552.854479][ T253] netlink_unicast+0x449/0x710 [ 6552.854479][ T253] netlink_sendmsg+0x723/0xbe0 [ 6552.854479][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6552.854479][ T253] ___sys_sendmsg+0xee/0x170 [ 6552.854479][ T253] __sys_sendmsg+0xcd/0x170 [ 6552.854479][ T253] do_syscall_64+0xc6/0x1e0 [ 6552.854479][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6552.854479][ T253] [ 6552.856288][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6552.856288][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6552.856288][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6552.856288][ T253] ipv6_find_idev+0x102/0x170 [ 6552.856288][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6552.856288][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6552.856288][ T253] netlink_rcv_skb+0x130/0x360 [ 6552.856288][ T253] netlink_unicast+0x449/0x710 [ 6552.856288][ T253] netlink_sendmsg+0x723/0xbe0 [ 6552.856288][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6552.856288][ T253] ___sys_sendmsg+0xee/0x170 [ 6552.856288][ T253] __sys_sendmsg+0xcd/0x170 [ 6552.856288][ T253] do_syscall_64+0xc6/0x1e0 [ 6552.856288][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6552.856288][ T253] [ 6563.098303][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6563.098757][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6563.098757][ T253] dst_init+0x84/0x4a0 [ 6563.098757][ T253] dst_alloc+0x97/0x150 [ 6563.098757][ T253] ip6_dst_alloc+0x23/0x90 [ 6563.098757][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6563.098757][ T253] ip6_pol_route+0x56f/0x840 [ 6563.098757][ T253] fib6_rule_lookup+0x334/0x630 [ 6563.098757][ T253] ip6_route_output_flags+0x259/0x480 [ 6563.098757][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6563.098757][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6563.098757][ T253] netlink_rcv_skb+0x130/0x360 [ 6563.098757][ T253] netlink_unicast+0x449/0x710 [ 6563.098757][ T253] netlink_sendmsg+0x723/0xbe0 [ 6563.098757][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6563.098757][ T253] ___sys_sendmsg+0xee/0x170 [ 6563.098757][ T253] __sys_sendmsg+0xcd/0x170 [ 6563.098757][ T253] do_syscall_64+0xc6/0x1e0 [ 6563.098757][ T253] [ 6563.101152][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6563.101152][ T253] netdev_get_by_index+0x5e/0x80 [ 6563.101152][ T253] fib6_nh_init+0x3d8/0x1580 [ 6563.101152][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6563.101152][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6563.101152][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6563.101152][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6563.101152][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6563.101152][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6563.101152][ T253] addrconf_dad_begin+0x310/0x670 [ 6563.101152][ T253] addrconf_dad_work+0x10b/0xab0 [ 6563.101152][ T253] process_one_work+0x84d/0x18a0 [ 6563.101152][ T253] worker_thread+0x587/0xd30 [ 6563.101152][ T253] kthread+0x28a/0x350 [ 6563.101152][ T253] ret_from_fork+0x31/0x70 [ 6563.101152][ T253] ret_from_fork_asm+0x1a/0x30 [ 6563.101152][ T253] [ 6563.103501][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6563.103501][ T253] netdev_get_by_index+0x5e/0x80 [ 6563.103501][ T253] fib6_nh_init+0x3d8/0x1580 [ 6563.103501][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6563.103501][ T253] ip6_route_add+0x1c/0x140 [ 6563.103501][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6563.103501][ T253] inet6_addr_add+0x4f8/0xa40 [ 6563.103501][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6563.103501][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6563.103501][ T253] netlink_rcv_skb+0x130/0x360 [ 6563.103501][ T253] netlink_unicast+0x449/0x710 [ 6563.103501][ T253] netlink_sendmsg+0x723/0xbe0 [ 6563.103501][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6563.103501][ T253] ___sys_sendmsg+0xee/0x170 [ 6563.103501][ T253] __sys_sendmsg+0xcd/0x170 [ 6563.103501][ T253] do_syscall_64+0xc6/0x1e0 [ 6563.103501][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6563.103501][ T253] [ 6563.105934][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6563.105934][ T253] netdev_get_by_index+0x5e/0x80 [ 6563.105934][ T253] fib6_nh_init+0x3d8/0x1580 [ 6563.105934][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6563.105934][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6563.105934][ T253] ipv6_add_addr+0x411/0x2000 [ 6563.105934][ T253] inet6_addr_add+0x30e/0xa40 [ 6563.105934][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6563.105934][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6563.105934][ T253] netlink_rcv_skb+0x130/0x360 [ 6563.105934][ T253] netlink_unicast+0x449/0x710 [ 6563.105934][ T253] netlink_sendmsg+0x723/0xbe0 [ 6563.105934][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6563.105934][ T253] ___sys_sendmsg+0xee/0x170 [ 6563.105934][ T253] __sys_sendmsg+0xcd/0x170 [ 6563.105934][ T253] do_syscall_64+0xc6/0x1e0 [ 6563.105934][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6563.105934][ T253] [ 6563.108388][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6563.108388][ T253] netdev_get_by_index+0x5e/0x80 [ 6563.108388][ T253] fib6_nh_init+0x3d8/0x1580 [ 6563.108388][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6563.108388][ T253] ip6_route_add+0x1c/0x140 [ 6563.108388][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6563.108388][ T253] addrconf_add_dev+0xe2/0x170 [ 6563.108388][ T253] inet6_addr_add+0x12f/0xa40 [ 6563.108388][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6563.108388][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6563.108388][ T253] netlink_rcv_skb+0x130/0x360 [ 6563.108388][ T253] netlink_unicast+0x449/0x710 [ 6563.108388][ T253] netlink_sendmsg+0x723/0xbe0 [ 6563.108388][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6563.108388][ T253] ___sys_sendmsg+0xee/0x170 [ 6563.108388][ T253] __sys_sendmsg+0xcd/0x170 [ 6563.108388][ T253] do_syscall_64+0xc6/0x1e0 [ 6563.108388][ T253] [ 6563.110833][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6563.110833][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6563.110833][ T253] ipv6_find_idev+0x102/0x170 [ 6563.110833][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6563.110833][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6563.110833][ T253] netlink_rcv_skb+0x130/0x360 [ 6563.110833][ T253] netlink_unicast+0x449/0x710 [ 6563.110833][ T253] netlink_sendmsg+0x723/0xbe0 [ 6563.110833][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6563.110833][ T253] ___sys_sendmsg+0xee/0x170 [ 6563.110833][ T253] __sys_sendmsg+0xcd/0x170 [ 6563.110833][ T253] do_syscall_64+0xc6/0x1e0 [ 6563.110833][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6563.110833][ T253] [ 6563.112720][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6563.112720][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6563.112720][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6563.112720][ T253] ipv6_find_idev+0x102/0x170 [ 6563.112720][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6563.112720][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6563.112720][ T253] netlink_rcv_skb+0x130/0x360 [ 6563.112720][ T253] netlink_unicast+0x449/0x710 [ 6563.112720][ T253] netlink_sendmsg+0x723/0xbe0 [ 6563.112720][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6563.112720][ T253] ___sys_sendmsg+0xee/0x170 [ 6563.112720][ T253] __sys_sendmsg+0xcd/0x170 [ 6563.112720][ T253] do_syscall_64+0xc6/0x1e0 [ 6563.112720][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6563.112720][ T253] [ 6573.354312][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6573.354738][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6573.354738][ T253] dst_init+0x84/0x4a0 [ 6573.354738][ T253] dst_alloc+0x97/0x150 [ 6573.354738][ T253] ip6_dst_alloc+0x23/0x90 [ 6573.354738][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6573.354738][ T253] ip6_pol_route+0x56f/0x840 [ 6573.354738][ T253] fib6_rule_lookup+0x334/0x630 [ 6573.354738][ T253] ip6_route_output_flags+0x259/0x480 [ 6573.354738][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6573.354738][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6573.354738][ T253] netlink_rcv_skb+0x130/0x360 [ 6573.354738][ T253] netlink_unicast+0x449/0x710 [ 6573.354738][ T253] netlink_sendmsg+0x723/0xbe0 [ 6573.354738][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6573.354738][ T253] ___sys_sendmsg+0xee/0x170 [ 6573.354738][ T253] __sys_sendmsg+0xcd/0x170 [ 6573.354738][ T253] do_syscall_64+0xc6/0x1e0 [ 6573.354738][ T253] [ 6573.356958][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6573.356958][ T253] netdev_get_by_index+0x5e/0x80 [ 6573.356958][ T253] fib6_nh_init+0x3d8/0x1580 [ 6573.356958][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6573.356958][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6573.356958][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6573.356958][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6573.356958][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6573.356958][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6573.356958][ T253] addrconf_dad_begin+0x310/0x670 [ 6573.356958][ T253] addrconf_dad_work+0x10b/0xab0 [ 6573.356958][ T253] process_one_work+0x84d/0x18a0 [ 6573.356958][ T253] worker_thread+0x587/0xd30 [ 6573.356958][ T253] kthread+0x28a/0x350 [ 6573.356958][ T253] ret_from_fork+0x31/0x70 [ 6573.356958][ T253] ret_from_fork_asm+0x1a/0x30 [ 6573.356958][ T253] [ 6573.359126][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6573.359126][ T253] netdev_get_by_index+0x5e/0x80 [ 6573.359126][ T253] fib6_nh_init+0x3d8/0x1580 [ 6573.359126][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6573.359126][ T253] ip6_route_add+0x1c/0x140 [ 6573.359126][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6573.359126][ T253] inet6_addr_add+0x4f8/0xa40 [ 6573.359126][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6573.359126][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6573.359126][ T253] netlink_rcv_skb+0x130/0x360 [ 6573.359126][ T253] netlink_unicast+0x449/0x710 [ 6573.359126][ T253] netlink_sendmsg+0x723/0xbe0 [ 6573.359126][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6573.359126][ T253] ___sys_sendmsg+0xee/0x170 [ 6573.359126][ T253] __sys_sendmsg+0xcd/0x170 [ 6573.359126][ T253] do_syscall_64+0xc6/0x1e0 [ 6573.359126][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6573.359126][ T253] [ 6573.361370][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6573.361370][ T253] netdev_get_by_index+0x5e/0x80 [ 6573.361370][ T253] fib6_nh_init+0x3d8/0x1580 [ 6573.361370][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6573.361370][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6573.361370][ T253] ipv6_add_addr+0x411/0x2000 [ 6573.361370][ T253] inet6_addr_add+0x30e/0xa40 [ 6573.361370][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6573.361370][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6573.361370][ T253] netlink_rcv_skb+0x130/0x360 [ 6573.361370][ T253] netlink_unicast+0x449/0x710 [ 6573.361370][ T253] netlink_sendmsg+0x723/0xbe0 [ 6573.361370][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6573.361370][ T253] ___sys_sendmsg+0xee/0x170 [ 6573.361370][ T253] __sys_sendmsg+0xcd/0x170 [ 6573.361370][ T253] do_syscall_64+0xc6/0x1e0 [ 6573.361370][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6573.361370][ T253] [ 6573.363630][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6573.363630][ T253] netdev_get_by_index+0x5e/0x80 [ 6573.363630][ T253] fib6_nh_init+0x3d8/0x1580 [ 6573.363630][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6573.363630][ T253] ip6_route_add+0x1c/0x140 [ 6573.363630][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6573.363630][ T253] addrconf_add_dev+0xe2/0x170 [ 6573.363630][ T253] inet6_addr_add+0x12f/0xa40 [ 6573.363630][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6573.363630][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6573.363630][ T253] netlink_rcv_skb+0x130/0x360 [ 6573.363630][ T253] netlink_unicast+0x449/0x710 [ 6573.363630][ T253] netlink_sendmsg+0x723/0xbe0 [ 6573.363630][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6573.363630][ T253] ___sys_sendmsg+0xee/0x170 [ 6573.363630][ T253] __sys_sendmsg+0xcd/0x170 [ 6573.363630][ T253] do_syscall_64+0xc6/0x1e0 [ 6573.363630][ T253] [ 6573.365839][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6573.365839][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6573.365839][ T253] ipv6_find_idev+0x102/0x170 [ 6573.365839][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6573.365839][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6573.365839][ T253] netlink_rcv_skb+0x130/0x360 [ 6573.365839][ T253] netlink_unicast+0x449/0x710 [ 6573.365839][ T253] netlink_sendmsg+0x723/0xbe0 [ 6573.365839][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6573.365839][ T253] ___sys_sendmsg+0xee/0x170 [ 6573.365839][ T253] __sys_sendmsg+0xcd/0x170 [ 6573.365839][ T253] do_syscall_64+0xc6/0x1e0 [ 6573.365839][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6573.365839][ T253] [ 6573.367565][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6573.367565][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6573.367565][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6573.367565][ T253] ipv6_find_idev+0x102/0x170 [ 6573.367565][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6573.367565][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6573.367565][ T253] netlink_rcv_skb+0x130/0x360 [ 6573.367565][ T253] netlink_unicast+0x449/0x710 [ 6573.367565][ T253] netlink_sendmsg+0x723/0xbe0 [ 6573.367565][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6573.367565][ T253] ___sys_sendmsg+0xee/0x170 [ 6573.367565][ T253] __sys_sendmsg+0xcd/0x170 [ 6573.367565][ T253] do_syscall_64+0xc6/0x1e0 [ 6573.367565][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6573.367565][ T253] [ 6583.610386][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6583.610857][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6583.610857][ T253] dst_init+0x84/0x4a0 [ 6583.610857][ T253] dst_alloc+0x97/0x150 [ 6583.610857][ T253] ip6_dst_alloc+0x23/0x90 [ 6583.610857][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6583.610857][ T253] ip6_pol_route+0x56f/0x840 [ 6583.610857][ T253] fib6_rule_lookup+0x334/0x630 [ 6583.610857][ T253] ip6_route_output_flags+0x259/0x480 [ 6583.610857][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6583.610857][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6583.610857][ T253] netlink_rcv_skb+0x130/0x360 [ 6583.610857][ T253] netlink_unicast+0x449/0x710 [ 6583.610857][ T253] netlink_sendmsg+0x723/0xbe0 [ 6583.610857][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6583.610857][ T253] ___sys_sendmsg+0xee/0x170 [ 6583.610857][ T253] __sys_sendmsg+0xcd/0x170 [ 6583.610857][ T253] do_syscall_64+0xc6/0x1e0 [ 6583.610857][ T253] [ 6583.613223][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6583.613223][ T253] netdev_get_by_index+0x5e/0x80 [ 6583.613223][ T253] fib6_nh_init+0x3d8/0x1580 [ 6583.613223][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6583.613223][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6583.613223][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6583.613223][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6583.613223][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6583.613223][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6583.613223][ T253] addrconf_dad_begin+0x310/0x670 [ 6583.613223][ T253] addrconf_dad_work+0x10b/0xab0 [ 6583.613223][ T253] process_one_work+0x84d/0x18a0 [ 6583.613223][ T253] worker_thread+0x587/0xd30 [ 6583.613223][ T253] kthread+0x28a/0x350 [ 6583.613223][ T253] ret_from_fork+0x31/0x70 [ 6583.613223][ T253] ret_from_fork_asm+0x1a/0x30 [ 6583.613223][ T253] [ 6583.615445][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6583.615445][ T253] netdev_get_by_index+0x5e/0x80 [ 6583.615445][ T253] fib6_nh_init+0x3d8/0x1580 [ 6583.615445][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6583.615445][ T253] ip6_route_add+0x1c/0x140 [ 6583.615445][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6583.615445][ T253] inet6_addr_add+0x4f8/0xa40 [ 6583.615445][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6583.615445][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6583.615445][ T253] netlink_rcv_skb+0x130/0x360 [ 6583.615445][ T253] netlink_unicast+0x449/0x710 [ 6583.615445][ T253] netlink_sendmsg+0x723/0xbe0 [ 6583.615445][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6583.615445][ T253] ___sys_sendmsg+0xee/0x170 [ 6583.615445][ T253] __sys_sendmsg+0xcd/0x170 [ 6583.615445][ T253] do_syscall_64+0xc6/0x1e0 [ 6583.615445][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6583.615445][ T253] [ 6583.617870][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6583.617870][ T253] netdev_get_by_index+0x5e/0x80 [ 6583.617870][ T253] fib6_nh_init+0x3d8/0x1580 [ 6583.617870][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6583.617870][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6583.617870][ T253] ipv6_add_addr+0x411/0x2000 [ 6583.617870][ T253] inet6_addr_add+0x30e/0xa40 [ 6583.617870][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6583.617870][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6583.617870][ T253] netlink_rcv_skb+0x130/0x360 [ 6583.617870][ T253] netlink_unicast+0x449/0x710 [ 6583.617870][ T253] netlink_sendmsg+0x723/0xbe0 [ 6583.617870][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6583.617870][ T253] ___sys_sendmsg+0xee/0x170 [ 6583.617870][ T253] __sys_sendmsg+0xcd/0x170 [ 6583.617870][ T253] do_syscall_64+0xc6/0x1e0 [ 6583.617870][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6583.617870][ T253] [ 6583.620290][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6583.620290][ T253] netdev_get_by_index+0x5e/0x80 [ 6583.620290][ T253] fib6_nh_init+0x3d8/0x1580 [ 6583.620290][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6583.620290][ T253] ip6_route_add+0x1c/0x140 [ 6583.620290][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6583.620290][ T253] addrconf_add_dev+0xe2/0x170 [ 6583.620290][ T253] inet6_addr_add+0x12f/0xa40 [ 6583.620290][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6583.620290][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6583.620290][ T253] netlink_rcv_skb+0x130/0x360 [ 6583.620290][ T253] netlink_unicast+0x449/0x710 [ 6583.620290][ T253] netlink_sendmsg+0x723/0xbe0 [ 6583.620290][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6583.620290][ T253] ___sys_sendmsg+0xee/0x170 [ 6583.620290][ T253] __sys_sendmsg+0xcd/0x170 [ 6583.620290][ T253] do_syscall_64+0xc6/0x1e0 [ 6583.620290][ T253] [ 6583.622646][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6583.622646][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6583.622646][ T253] ipv6_find_idev+0x102/0x170 [ 6583.622646][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6583.622646][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6583.622646][ T253] netlink_rcv_skb+0x130/0x360 [ 6583.622646][ T253] netlink_unicast+0x449/0x710 [ 6583.622646][ T253] netlink_sendmsg+0x723/0xbe0 [ 6583.622646][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6583.622646][ T253] ___sys_sendmsg+0xee/0x170 [ 6583.622646][ T253] __sys_sendmsg+0xcd/0x170 [ 6583.622646][ T253] do_syscall_64+0xc6/0x1e0 [ 6583.622646][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6583.622646][ T253] [ 6583.624441][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6583.624441][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6583.624441][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6583.624441][ T253] ipv6_find_idev+0x102/0x170 [ 6583.624441][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6583.624441][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6583.624441][ T253] netlink_rcv_skb+0x130/0x360 [ 6583.624441][ T253] netlink_unicast+0x449/0x710 [ 6583.624441][ T253] netlink_sendmsg+0x723/0xbe0 [ 6583.624441][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6583.624441][ T253] ___sys_sendmsg+0xee/0x170 [ 6583.624441][ T253] __sys_sendmsg+0xcd/0x170 [ 6583.624441][ T253] do_syscall_64+0xc6/0x1e0 [ 6583.624441][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6583.624441][ T253] [ 6593.866320][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6593.866738][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6593.866738][ T253] dst_init+0x84/0x4a0 [ 6593.866738][ T253] dst_alloc+0x97/0x150 [ 6593.866738][ T253] ip6_dst_alloc+0x23/0x90 [ 6593.866738][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6593.866738][ T253] ip6_pol_route+0x56f/0x840 [ 6593.866738][ T253] fib6_rule_lookup+0x334/0x630 [ 6593.866738][ T253] ip6_route_output_flags+0x259/0x480 [ 6593.866738][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6593.866738][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6593.866738][ T253] netlink_rcv_skb+0x130/0x360 [ 6593.866738][ T253] netlink_unicast+0x449/0x710 [ 6593.866738][ T253] netlink_sendmsg+0x723/0xbe0 [ 6593.866738][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6593.866738][ T253] ___sys_sendmsg+0xee/0x170 [ 6593.866738][ T253] __sys_sendmsg+0xcd/0x170 [ 6593.866738][ T253] do_syscall_64+0xc6/0x1e0 [ 6593.866738][ T253] [ 6593.868933][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6593.868933][ T253] netdev_get_by_index+0x5e/0x80 [ 6593.868933][ T253] fib6_nh_init+0x3d8/0x1580 [ 6593.868933][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6593.868933][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6593.868933][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6593.868933][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6593.868933][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6593.868933][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6593.868933][ T253] addrconf_dad_begin+0x310/0x670 [ 6593.868933][ T253] addrconf_dad_work+0x10b/0xab0 [ 6593.868933][ T253] process_one_work+0x84d/0x18a0 [ 6593.868933][ T253] worker_thread+0x587/0xd30 [ 6593.868933][ T253] kthread+0x28a/0x350 [ 6593.868933][ T253] ret_from_fork+0x31/0x70 [ 6593.868933][ T253] ret_from_fork_asm+0x1a/0x30 [ 6593.868933][ T253] [ 6593.871097][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6593.871097][ T253] netdev_get_by_index+0x5e/0x80 [ 6593.871097][ T253] fib6_nh_init+0x3d8/0x1580 [ 6593.871097][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6593.871097][ T253] ip6_route_add+0x1c/0x140 [ 6593.871097][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6593.871097][ T253] inet6_addr_add+0x4f8/0xa40 [ 6593.871097][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6593.871097][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6593.871097][ T253] netlink_rcv_skb+0x130/0x360 [ 6593.871097][ T253] netlink_unicast+0x449/0x710 [ 6593.871097][ T253] netlink_sendmsg+0x723/0xbe0 [ 6593.871097][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6593.871097][ T253] ___sys_sendmsg+0xee/0x170 [ 6593.871097][ T253] __sys_sendmsg+0xcd/0x170 [ 6593.871097][ T253] do_syscall_64+0xc6/0x1e0 [ 6593.871097][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6593.871097][ T253] [ 6593.873336][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6593.873336][ T253] netdev_get_by_index+0x5e/0x80 [ 6593.873336][ T253] fib6_nh_init+0x3d8/0x1580 [ 6593.873336][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6593.873336][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6593.873336][ T253] ipv6_add_addr+0x411/0x2000 [ 6593.873336][ T253] inet6_addr_add+0x30e/0xa40 [ 6593.873336][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6593.873336][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6593.873336][ T253] netlink_rcv_skb+0x130/0x360 [ 6593.873336][ T253] netlink_unicast+0x449/0x710 [ 6593.873336][ T253] netlink_sendmsg+0x723/0xbe0 [ 6593.873336][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6593.873336][ T253] ___sys_sendmsg+0xee/0x170 [ 6593.873336][ T253] __sys_sendmsg+0xcd/0x170 [ 6593.873336][ T253] do_syscall_64+0xc6/0x1e0 [ 6593.873336][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6593.873336][ T253] [ 6593.875576][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6593.875576][ T253] netdev_get_by_index+0x5e/0x80 [ 6593.875576][ T253] fib6_nh_init+0x3d8/0x1580 [ 6593.875576][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6593.875576][ T253] ip6_route_add+0x1c/0x140 [ 6593.875576][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6593.875576][ T253] addrconf_add_dev+0xe2/0x170 [ 6593.875576][ T253] inet6_addr_add+0x12f/0xa40 [ 6593.875576][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6593.875576][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6593.875576][ T253] netlink_rcv_skb+0x130/0x360 [ 6593.875576][ T253] netlink_unicast+0x449/0x710 [ 6593.875576][ T253] netlink_sendmsg+0x723/0xbe0 [ 6593.875576][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6593.875576][ T253] ___sys_sendmsg+0xee/0x170 [ 6593.875576][ T253] __sys_sendmsg+0xcd/0x170 [ 6593.875576][ T253] do_syscall_64+0xc6/0x1e0 [ 6593.875576][ T253] [ 6593.877778][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6593.877778][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6593.877778][ T253] ipv6_find_idev+0x102/0x170 [ 6593.877778][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6593.877778][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6593.877778][ T253] netlink_rcv_skb+0x130/0x360 [ 6593.877778][ T253] netlink_unicast+0x449/0x710 [ 6593.877778][ T253] netlink_sendmsg+0x723/0xbe0 [ 6593.877778][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6593.877778][ T253] ___sys_sendmsg+0xee/0x170 [ 6593.877778][ T253] __sys_sendmsg+0xcd/0x170 [ 6593.877778][ T253] do_syscall_64+0xc6/0x1e0 [ 6593.877778][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6593.877778][ T253] [ 6593.879510][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6593.879510][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6593.879510][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6593.879510][ T253] ipv6_find_idev+0x102/0x170 [ 6593.879510][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6593.879510][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6593.879510][ T253] netlink_rcv_skb+0x130/0x360 [ 6593.879510][ T253] netlink_unicast+0x449/0x710 [ 6593.879510][ T253] netlink_sendmsg+0x723/0xbe0 [ 6593.879510][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6593.879510][ T253] ___sys_sendmsg+0xee/0x170 [ 6593.879510][ T253] __sys_sendmsg+0xcd/0x170 [ 6593.879510][ T253] do_syscall_64+0xc6/0x1e0 [ 6593.879510][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6593.879510][ T253] [ 6603.882306][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6603.882716][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6603.882716][ T253] dst_init+0x84/0x4a0 [ 6603.882716][ T253] dst_alloc+0x97/0x150 [ 6603.882716][ T253] ip6_dst_alloc+0x23/0x90 [ 6603.882716][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6603.882716][ T253] ip6_pol_route+0x56f/0x840 [ 6603.882716][ T253] fib6_rule_lookup+0x334/0x630 [ 6603.882716][ T253] ip6_route_output_flags+0x259/0x480 [ 6603.882716][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6603.882716][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6603.882716][ T253] netlink_rcv_skb+0x130/0x360 [ 6603.882716][ T253] netlink_unicast+0x449/0x710 [ 6603.882716][ T253] netlink_sendmsg+0x723/0xbe0 [ 6603.882716][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6603.882716][ T253] ___sys_sendmsg+0xee/0x170 [ 6603.882716][ T253] __sys_sendmsg+0xcd/0x170 [ 6603.882716][ T253] do_syscall_64+0xc6/0x1e0 [ 6603.882716][ T253] [ 6603.884936][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6603.884936][ T253] netdev_get_by_index+0x5e/0x80 [ 6603.884936][ T253] fib6_nh_init+0x3d8/0x1580 [ 6603.884936][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6603.884936][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6603.884936][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6603.884936][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6603.884936][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6603.884936][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6603.884936][ T253] addrconf_dad_begin+0x310/0x670 [ 6603.884936][ T253] addrconf_dad_work+0x10b/0xab0 [ 6603.884936][ T253] process_one_work+0x84d/0x18a0 [ 6603.884936][ T253] worker_thread+0x587/0xd30 [ 6603.884936][ T253] kthread+0x28a/0x350 [ 6603.884936][ T253] ret_from_fork+0x31/0x70 [ 6603.884936][ T253] ret_from_fork_asm+0x1a/0x30 [ 6603.884936][ T253] [ 6603.887109][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6603.887109][ T253] netdev_get_by_index+0x5e/0x80 [ 6603.887109][ T253] fib6_nh_init+0x3d8/0x1580 [ 6603.887109][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6603.887109][ T253] ip6_route_add+0x1c/0x140 [ 6603.887109][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6603.887109][ T253] inet6_addr_add+0x4f8/0xa40 [ 6603.887109][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6603.887109][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6603.887109][ T253] netlink_rcv_skb+0x130/0x360 [ 6603.887109][ T253] netlink_unicast+0x449/0x710 [ 6603.887109][ T253] netlink_sendmsg+0x723/0xbe0 [ 6603.887109][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6603.887109][ T253] ___sys_sendmsg+0xee/0x170 [ 6603.887109][ T253] __sys_sendmsg+0xcd/0x170 [ 6603.887109][ T253] do_syscall_64+0xc6/0x1e0 [ 6603.887109][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6603.887109][ T253] [ 6603.889380][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6603.889380][ T253] netdev_get_by_index+0x5e/0x80 [ 6603.889380][ T253] fib6_nh_init+0x3d8/0x1580 [ 6603.889380][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6603.889380][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6603.889380][ T253] ipv6_add_addr+0x411/0x2000 [ 6603.889380][ T253] inet6_addr_add+0x30e/0xa40 [ 6603.889380][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6603.889380][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6603.889380][ T253] netlink_rcv_skb+0x130/0x360 [ 6603.889380][ T253] netlink_unicast+0x449/0x710 [ 6603.889380][ T253] netlink_sendmsg+0x723/0xbe0 [ 6603.889380][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6603.889380][ T253] ___sys_sendmsg+0xee/0x170 [ 6603.889380][ T253] __sys_sendmsg+0xcd/0x170 [ 6603.889380][ T253] do_syscall_64+0xc6/0x1e0 [ 6603.889380][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6603.889380][ T253] [ 6603.891643][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6603.891643][ T253] netdev_get_by_index+0x5e/0x80 [ 6603.891643][ T253] fib6_nh_init+0x3d8/0x1580 [ 6603.891643][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6603.891643][ T253] ip6_route_add+0x1c/0x140 [ 6603.891643][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6603.891643][ T253] addrconf_add_dev+0xe2/0x170 [ 6603.891643][ T253] inet6_addr_add+0x12f/0xa40 [ 6603.891643][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6603.891643][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6603.891643][ T253] netlink_rcv_skb+0x130/0x360 [ 6603.891643][ T253] netlink_unicast+0x449/0x710 [ 6603.891643][ T253] netlink_sendmsg+0x723/0xbe0 [ 6603.891643][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6603.891643][ T253] ___sys_sendmsg+0xee/0x170 [ 6603.891643][ T253] __sys_sendmsg+0xcd/0x170 [ 6603.891643][ T253] do_syscall_64+0xc6/0x1e0 [ 6603.891643][ T253] [ 6603.893856][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6603.893856][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6603.893856][ T253] ipv6_find_idev+0x102/0x170 [ 6603.893856][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6603.893856][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6603.893856][ T253] netlink_rcv_skb+0x130/0x360 [ 6603.893856][ T253] netlink_unicast+0x449/0x710 [ 6603.893856][ T253] netlink_sendmsg+0x723/0xbe0 [ 6603.893856][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6603.893856][ T253] ___sys_sendmsg+0xee/0x170 [ 6603.893856][ T253] __sys_sendmsg+0xcd/0x170 [ 6603.893856][ T253] do_syscall_64+0xc6/0x1e0 [ 6603.893856][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6603.893856][ T253] [ 6603.895587][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6603.895587][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6603.895587][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6603.895587][ T253] ipv6_find_idev+0x102/0x170 [ 6603.895587][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6603.895587][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6603.895587][ T253] netlink_rcv_skb+0x130/0x360 [ 6603.895587][ T253] netlink_unicast+0x449/0x710 [ 6603.895587][ T253] netlink_sendmsg+0x723/0xbe0 [ 6603.895587][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6603.895587][ T253] ___sys_sendmsg+0xee/0x170 [ 6603.895587][ T253] __sys_sendmsg+0xcd/0x170 [ 6603.895587][ T253] do_syscall_64+0xc6/0x1e0 [ 6603.895587][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6603.895587][ T253] [ 6614.138308][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6614.138805][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6614.138805][ T253] dst_init+0x84/0x4a0 [ 6614.138805][ T253] dst_alloc+0x97/0x150 [ 6614.138805][ T253] ip6_dst_alloc+0x23/0x90 [ 6614.138805][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6614.138805][ T253] ip6_pol_route+0x56f/0x840 [ 6614.138805][ T253] fib6_rule_lookup+0x334/0x630 [ 6614.138805][ T253] ip6_route_output_flags+0x259/0x480 [ 6614.138805][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6614.138805][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6614.138805][ T253] netlink_rcv_skb+0x130/0x360 [ 6614.138805][ T253] netlink_unicast+0x449/0x710 [ 6614.138805][ T253] netlink_sendmsg+0x723/0xbe0 [ 6614.138805][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6614.138805][ T253] ___sys_sendmsg+0xee/0x170 [ 6614.138805][ T253] __sys_sendmsg+0xcd/0x170 [ 6614.138805][ T253] do_syscall_64+0xc6/0x1e0 [ 6614.138805][ T253] [ 6614.141016][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6614.141016][ T253] netdev_get_by_index+0x5e/0x80 [ 6614.141016][ T253] fib6_nh_init+0x3d8/0x1580 [ 6614.141016][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6614.141016][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6614.141016][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6614.141016][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6614.141016][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6614.141016][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6614.141016][ T253] addrconf_dad_begin+0x310/0x670 [ 6614.141016][ T253] addrconf_dad_work+0x10b/0xab0 [ 6614.141016][ T253] process_one_work+0x84d/0x18a0 [ 6614.141016][ T253] worker_thread+0x587/0xd30 [ 6614.141016][ T253] kthread+0x28a/0x350 [ 6614.141016][ T253] ret_from_fork+0x31/0x70 [ 6614.141016][ T253] ret_from_fork_asm+0x1a/0x30 [ 6614.141016][ T253] [ 6614.143171][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6614.143171][ T253] netdev_get_by_index+0x5e/0x80 [ 6614.143171][ T253] fib6_nh_init+0x3d8/0x1580 [ 6614.143171][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6614.143171][ T253] ip6_route_add+0x1c/0x140 [ 6614.143171][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6614.143171][ T253] inet6_addr_add+0x4f8/0xa40 [ 6614.143171][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6614.143171][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6614.143171][ T253] netlink_rcv_skb+0x130/0x360 [ 6614.143171][ T253] netlink_unicast+0x449/0x710 [ 6614.143171][ T253] netlink_sendmsg+0x723/0xbe0 [ 6614.143171][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6614.143171][ T253] ___sys_sendmsg+0xee/0x170 [ 6614.143171][ T253] __sys_sendmsg+0xcd/0x170 [ 6614.143171][ T253] do_syscall_64+0xc6/0x1e0 [ 6614.143171][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6614.143171][ T253] [ 6614.145353][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6614.145353][ T253] netdev_get_by_index+0x5e/0x80 [ 6614.145353][ T253] fib6_nh_init+0x3d8/0x1580 [ 6614.145353][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6614.145353][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6614.145353][ T253] ipv6_add_addr+0x411/0x2000 [ 6614.145353][ T253] inet6_addr_add+0x30e/0xa40 [ 6614.145353][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6614.145353][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6614.145353][ T253] netlink_rcv_skb+0x130/0x360 [ 6614.145353][ T253] netlink_unicast+0x449/0x710 [ 6614.145353][ T253] netlink_sendmsg+0x723/0xbe0 [ 6614.145353][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6614.145353][ T253] ___sys_sendmsg+0xee/0x170 [ 6614.145353][ T253] __sys_sendmsg+0xcd/0x170 [ 6614.145353][ T253] do_syscall_64+0xc6/0x1e0 [ 6614.145353][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6614.145353][ T253] [ 6614.148048][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6614.148048][ T253] netdev_get_by_index+0x5e/0x80 [ 6614.148048][ T253] fib6_nh_init+0x3d8/0x1580 [ 6614.148048][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6614.148048][ T253] ip6_route_add+0x1c/0x140 [ 6614.148048][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6614.148048][ T253] addrconf_add_dev+0xe2/0x170 [ 6614.148048][ T253] inet6_addr_add+0x12f/0xa40 [ 6614.148048][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6614.148048][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6614.148048][ T253] netlink_rcv_skb+0x130/0x360 [ 6614.148048][ T253] netlink_unicast+0x449/0x710 [ 6614.148048][ T253] netlink_sendmsg+0x723/0xbe0 [ 6614.148048][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6614.148048][ T253] ___sys_sendmsg+0xee/0x170 [ 6614.148048][ T253] __sys_sendmsg+0xcd/0x170 [ 6614.148048][ T253] do_syscall_64+0xc6/0x1e0 [ 6614.148048][ T253] [ 6614.150278][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6614.150278][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6614.150278][ T253] ipv6_find_idev+0x102/0x170 [ 6614.150278][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6614.150278][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6614.150278][ T253] netlink_rcv_skb+0x130/0x360 [ 6614.150278][ T253] netlink_unicast+0x449/0x710 [ 6614.150278][ T253] netlink_sendmsg+0x723/0xbe0 [ 6614.150278][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6614.150278][ T253] ___sys_sendmsg+0xee/0x170 [ 6614.150278][ T253] __sys_sendmsg+0xcd/0x170 [ 6614.150278][ T253] do_syscall_64+0xc6/0x1e0 [ 6614.150278][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6614.150278][ T253] [ 6614.152018][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6614.152018][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6614.152018][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6614.152018][ T253] ipv6_find_idev+0x102/0x170 [ 6614.152018][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6614.152018][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6614.152018][ T253] netlink_rcv_skb+0x130/0x360 [ 6614.152018][ T253] netlink_unicast+0x449/0x710 [ 6614.152018][ T253] netlink_sendmsg+0x723/0xbe0 [ 6614.152018][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6614.152018][ T253] ___sys_sendmsg+0xee/0x170 [ 6614.152018][ T253] __sys_sendmsg+0xcd/0x170 [ 6614.152018][ T253] do_syscall_64+0xc6/0x1e0 [ 6614.152018][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6614.152018][ T253] [ 6624.394317][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6624.394814][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6624.394814][ T253] dst_init+0x84/0x4a0 [ 6624.394814][ T253] dst_alloc+0x97/0x150 [ 6624.394814][ T253] ip6_dst_alloc+0x23/0x90 [ 6624.394814][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6624.394814][ T253] ip6_pol_route+0x56f/0x840 [ 6624.394814][ T253] fib6_rule_lookup+0x334/0x630 [ 6624.394814][ T253] ip6_route_output_flags+0x259/0x480 [ 6624.394814][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6624.394814][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6624.394814][ T253] netlink_rcv_skb+0x130/0x360 [ 6624.394814][ T253] netlink_unicast+0x449/0x710 [ 6624.394814][ T253] netlink_sendmsg+0x723/0xbe0 [ 6624.394814][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6624.394814][ T253] ___sys_sendmsg+0xee/0x170 [ 6624.394814][ T253] __sys_sendmsg+0xcd/0x170 [ 6624.394814][ T253] do_syscall_64+0xc6/0x1e0 [ 6624.394814][ T253] [ 6624.397015][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6624.397015][ T253] netdev_get_by_index+0x5e/0x80 [ 6624.397015][ T253] fib6_nh_init+0x3d8/0x1580 [ 6624.397015][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6624.397015][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6624.397015][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6624.397015][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6624.397015][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6624.397015][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6624.397015][ T253] addrconf_dad_begin+0x310/0x670 [ 6624.397015][ T253] addrconf_dad_work+0x10b/0xab0 [ 6624.397015][ T253] process_one_work+0x84d/0x18a0 [ 6624.397015][ T253] worker_thread+0x587/0xd30 [ 6624.397015][ T253] kthread+0x28a/0x350 [ 6624.397015][ T253] ret_from_fork+0x31/0x70 [ 6624.397015][ T253] ret_from_fork_asm+0x1a/0x30 [ 6624.397015][ T253] [ 6624.400068][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6624.400068][ T253] netdev_get_by_index+0x5e/0x80 [ 6624.400068][ T253] fib6_nh_init+0x3d8/0x1580 [ 6624.400068][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6624.400068][ T253] ip6_route_add+0x1c/0x140 [ 6624.400068][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6624.400068][ T253] inet6_addr_add+0x4f8/0xa40 [ 6624.400068][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6624.400068][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6624.400068][ T253] netlink_rcv_skb+0x130/0x360 [ 6624.400068][ T253] netlink_unicast+0x449/0x710 [ 6624.400068][ T253] netlink_sendmsg+0x723/0xbe0 [ 6624.400068][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6624.400068][ T253] ___sys_sendmsg+0xee/0x170 [ 6624.400068][ T253] __sys_sendmsg+0xcd/0x170 [ 6624.400068][ T253] do_syscall_64+0xc6/0x1e0 [ 6624.400068][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6624.400068][ T253] [ 6624.402322][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6624.402322][ T253] netdev_get_by_index+0x5e/0x80 [ 6624.402322][ T253] fib6_nh_init+0x3d8/0x1580 [ 6624.402322][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6624.402322][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6624.402322][ T253] ipv6_add_addr+0x411/0x2000 [ 6624.402322][ T253] inet6_addr_add+0x30e/0xa40 [ 6624.402322][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6624.402322][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6624.402322][ T253] netlink_rcv_skb+0x130/0x360 [ 6624.402322][ T253] netlink_unicast+0x449/0x710 [ 6624.402322][ T253] netlink_sendmsg+0x723/0xbe0 [ 6624.402322][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6624.402322][ T253] ___sys_sendmsg+0xee/0x170 [ 6624.402322][ T253] __sys_sendmsg+0xcd/0x170 [ 6624.402322][ T253] do_syscall_64+0xc6/0x1e0 [ 6624.402322][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6624.402322][ T253] [ 6624.404584][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6624.404584][ T253] netdev_get_by_index+0x5e/0x80 [ 6624.404584][ T253] fib6_nh_init+0x3d8/0x1580 [ 6624.404584][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6624.404584][ T253] ip6_route_add+0x1c/0x140 [ 6624.404584][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6624.404584][ T253] addrconf_add_dev+0xe2/0x170 [ 6624.404584][ T253] inet6_addr_add+0x12f/0xa40 [ 6624.404584][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6624.404584][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6624.404584][ T253] netlink_rcv_skb+0x130/0x360 [ 6624.404584][ T253] netlink_unicast+0x449/0x710 [ 6624.404584][ T253] netlink_sendmsg+0x723/0xbe0 [ 6624.404584][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6624.404584][ T253] ___sys_sendmsg+0xee/0x170 [ 6624.404584][ T253] __sys_sendmsg+0xcd/0x170 [ 6624.404584][ T253] do_syscall_64+0xc6/0x1e0 [ 6624.404584][ T253] [ 6624.406920][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6624.406920][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6624.406920][ T253] ipv6_find_idev+0x102/0x170 [ 6624.406920][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6624.406920][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6624.406920][ T253] netlink_rcv_skb+0x130/0x360 [ 6624.406920][ T253] netlink_unicast+0x449/0x710 [ 6624.406920][ T253] netlink_sendmsg+0x723/0xbe0 [ 6624.406920][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6624.406920][ T253] ___sys_sendmsg+0xee/0x170 [ 6624.406920][ T253] __sys_sendmsg+0xcd/0x170 [ 6624.406920][ T253] do_syscall_64+0xc6/0x1e0 [ 6624.406920][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6624.406920][ T253] [ 6624.408669][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6624.408669][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6624.408669][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6624.408669][ T253] ipv6_find_idev+0x102/0x170 [ 6624.408669][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6624.408669][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6624.408669][ T253] netlink_rcv_skb+0x130/0x360 [ 6624.408669][ T253] netlink_unicast+0x449/0x710 [ 6624.408669][ T253] netlink_sendmsg+0x723/0xbe0 [ 6624.408669][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6624.408669][ T253] ___sys_sendmsg+0xee/0x170 [ 6624.408669][ T253] __sys_sendmsg+0xcd/0x170 [ 6624.408669][ T253] do_syscall_64+0xc6/0x1e0 [ 6624.408669][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6624.408669][ T253] [ 6634.634371][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6634.634847][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6634.634847][ T253] dst_init+0x84/0x4a0 [ 6634.634847][ T253] dst_alloc+0x97/0x150 [ 6634.634847][ T253] ip6_dst_alloc+0x23/0x90 [ 6634.634847][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6634.634847][ T253] ip6_pol_route+0x56f/0x840 [ 6634.634847][ T253] fib6_rule_lookup+0x334/0x630 [ 6634.634847][ T253] ip6_route_output_flags+0x259/0x480 [ 6634.634847][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6634.634847][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6634.634847][ T253] netlink_rcv_skb+0x130/0x360 [ 6634.634847][ T253] netlink_unicast+0x449/0x710 [ 6634.634847][ T253] netlink_sendmsg+0x723/0xbe0 [ 6634.634847][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6634.634847][ T253] ___sys_sendmsg+0xee/0x170 [ 6634.634847][ T253] __sys_sendmsg+0xcd/0x170 [ 6634.634847][ T253] do_syscall_64+0xc6/0x1e0 [ 6634.634847][ T253] [ 6634.637032][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6634.637032][ T253] netdev_get_by_index+0x5e/0x80 [ 6634.637032][ T253] fib6_nh_init+0x3d8/0x1580 [ 6634.637032][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6634.637032][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6634.637032][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6634.637032][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6634.637032][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6634.637032][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6634.637032][ T253] addrconf_dad_begin+0x310/0x670 [ 6634.637032][ T253] addrconf_dad_work+0x10b/0xab0 [ 6634.637032][ T253] process_one_work+0x84d/0x18a0 [ 6634.637032][ T253] worker_thread+0x587/0xd30 [ 6634.637032][ T253] kthread+0x28a/0x350 [ 6634.637032][ T253] ret_from_fork+0x31/0x70 [ 6634.637032][ T253] ret_from_fork_asm+0x1a/0x30 [ 6634.637032][ T253] [ 6634.639207][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6634.639207][ T253] netdev_get_by_index+0x5e/0x80 [ 6634.639207][ T253] fib6_nh_init+0x3d8/0x1580 [ 6634.639207][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6634.639207][ T253] ip6_route_add+0x1c/0x140 [ 6634.639207][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6634.639207][ T253] inet6_addr_add+0x4f8/0xa40 [ 6634.639207][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6634.639207][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6634.639207][ T253] netlink_rcv_skb+0x130/0x360 [ 6634.639207][ T253] netlink_unicast+0x449/0x710 [ 6634.639207][ T253] netlink_sendmsg+0x723/0xbe0 [ 6634.639207][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6634.639207][ T253] ___sys_sendmsg+0xee/0x170 [ 6634.639207][ T253] __sys_sendmsg+0xcd/0x170 [ 6634.639207][ T253] do_syscall_64+0xc6/0x1e0 [ 6634.639207][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6634.639207][ T253] [ 6634.641808][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6634.641808][ T253] netdev_get_by_index+0x5e/0x80 [ 6634.641808][ T253] fib6_nh_init+0x3d8/0x1580 [ 6634.641808][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6634.641808][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6634.641808][ T253] ipv6_add_addr+0x411/0x2000 [ 6634.641808][ T253] inet6_addr_add+0x30e/0xa40 [ 6634.641808][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6634.641808][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6634.641808][ T253] netlink_rcv_skb+0x130/0x360 [ 6634.641808][ T253] netlink_unicast+0x449/0x710 [ 6634.641808][ T253] netlink_sendmsg+0x723/0xbe0 [ 6634.641808][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6634.641808][ T253] ___sys_sendmsg+0xee/0x170 [ 6634.641808][ T253] __sys_sendmsg+0xcd/0x170 [ 6634.641808][ T253] do_syscall_64+0xc6/0x1e0 [ 6634.641808][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6634.641808][ T253] [ 6634.644011][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6634.644011][ T253] netdev_get_by_index+0x5e/0x80 [ 6634.644011][ T253] fib6_nh_init+0x3d8/0x1580 [ 6634.644011][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6634.644011][ T253] ip6_route_add+0x1c/0x140 [ 6634.644011][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6634.644011][ T253] addrconf_add_dev+0xe2/0x170 [ 6634.644011][ T253] inet6_addr_add+0x12f/0xa40 [ 6634.644011][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6634.644011][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6634.644011][ T253] netlink_rcv_skb+0x130/0x360 [ 6634.644011][ T253] netlink_unicast+0x449/0x710 [ 6634.644011][ T253] netlink_sendmsg+0x723/0xbe0 [ 6634.644011][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6634.644011][ T253] ___sys_sendmsg+0xee/0x170 [ 6634.644011][ T253] __sys_sendmsg+0xcd/0x170 [ 6634.644011][ T253] do_syscall_64+0xc6/0x1e0 [ 6634.644011][ T253] [ 6634.646231][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6634.646231][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6634.646231][ T253] ipv6_find_idev+0x102/0x170 [ 6634.646231][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6634.646231][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6634.646231][ T253] netlink_rcv_skb+0x130/0x360 [ 6634.646231][ T253] netlink_unicast+0x449/0x710 [ 6634.646231][ T253] netlink_sendmsg+0x723/0xbe0 [ 6634.646231][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6634.646231][ T253] ___sys_sendmsg+0xee/0x170 [ 6634.646231][ T253] __sys_sendmsg+0xcd/0x170 [ 6634.646231][ T253] do_syscall_64+0xc6/0x1e0 [ 6634.646231][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6634.646231][ T253] [ 6634.648336][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6634.648336][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6634.648336][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6634.648336][ T253] ipv6_find_idev+0x102/0x170 [ 6634.648336][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6634.648336][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6634.648336][ T253] netlink_rcv_skb+0x130/0x360 [ 6634.648336][ T253] netlink_unicast+0x449/0x710 [ 6634.648336][ T253] netlink_sendmsg+0x723/0xbe0 [ 6634.648336][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6634.648336][ T253] ___sys_sendmsg+0xee/0x170 [ 6634.648336][ T253] __sys_sendmsg+0xcd/0x170 [ 6634.648336][ T253] do_syscall_64+0xc6/0x1e0 [ 6634.648336][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6634.648336][ T253] [ 6644.682301][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6644.682785][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6644.682785][ T253] dst_init+0x84/0x4a0 [ 6644.682785][ T253] dst_alloc+0x97/0x150 [ 6644.682785][ T253] ip6_dst_alloc+0x23/0x90 [ 6644.682785][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6644.682785][ T253] ip6_pol_route+0x56f/0x840 [ 6644.682785][ T253] fib6_rule_lookup+0x334/0x630 [ 6644.682785][ T253] ip6_route_output_flags+0x259/0x480 [ 6644.682785][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6644.682785][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6644.682785][ T253] netlink_rcv_skb+0x130/0x360 [ 6644.682785][ T253] netlink_unicast+0x449/0x710 [ 6644.682785][ T253] netlink_sendmsg+0x723/0xbe0 [ 6644.682785][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6644.682785][ T253] ___sys_sendmsg+0xee/0x170 [ 6644.682785][ T253] __sys_sendmsg+0xcd/0x170 [ 6644.682785][ T253] do_syscall_64+0xc6/0x1e0 [ 6644.682785][ T253] [ 6644.685100][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6644.685100][ T253] netdev_get_by_index+0x5e/0x80 [ 6644.685100][ T253] fib6_nh_init+0x3d8/0x1580 [ 6644.685100][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6644.685100][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6644.685100][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6644.685100][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6644.685100][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6644.685100][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6644.685100][ T253] addrconf_dad_begin+0x310/0x670 [ 6644.685100][ T253] addrconf_dad_work+0x10b/0xab0 [ 6644.685100][ T253] process_one_work+0x84d/0x18a0 [ 6644.685100][ T253] worker_thread+0x587/0xd30 [ 6644.685100][ T253] kthread+0x28a/0x350 [ 6644.685100][ T253] ret_from_fork+0x31/0x70 [ 6644.685100][ T253] ret_from_fork_asm+0x1a/0x30 [ 6644.685100][ T253] [ 6644.687262][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6644.687262][ T253] netdev_get_by_index+0x5e/0x80 [ 6644.687262][ T253] fib6_nh_init+0x3d8/0x1580 [ 6644.687262][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6644.687262][ T253] ip6_route_add+0x1c/0x140 [ 6644.687262][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6644.687262][ T253] inet6_addr_add+0x4f8/0xa40 [ 6644.687262][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6644.687262][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6644.687262][ T253] netlink_rcv_skb+0x130/0x360 [ 6644.687262][ T253] netlink_unicast+0x449/0x710 [ 6644.687262][ T253] netlink_sendmsg+0x723/0xbe0 [ 6644.687262][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6644.687262][ T253] ___sys_sendmsg+0xee/0x170 [ 6644.687262][ T253] __sys_sendmsg+0xcd/0x170 [ 6644.687262][ T253] do_syscall_64+0xc6/0x1e0 [ 6644.687262][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6644.687262][ T253] [ 6644.689525][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6644.689525][ T253] netdev_get_by_index+0x5e/0x80 [ 6644.689525][ T253] fib6_nh_init+0x3d8/0x1580 [ 6644.689525][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6644.689525][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6644.689525][ T253] ipv6_add_addr+0x411/0x2000 [ 6644.689525][ T253] inet6_addr_add+0x30e/0xa40 [ 6644.689525][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6644.689525][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6644.689525][ T253] netlink_rcv_skb+0x130/0x360 [ 6644.689525][ T253] netlink_unicast+0x449/0x710 [ 6644.689525][ T253] netlink_sendmsg+0x723/0xbe0 [ 6644.689525][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6644.689525][ T253] ___sys_sendmsg+0xee/0x170 [ 6644.689525][ T253] __sys_sendmsg+0xcd/0x170 [ 6644.689525][ T253] do_syscall_64+0xc6/0x1e0 [ 6644.689525][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6644.689525][ T253] [ 6644.691780][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6644.691780][ T253] netdev_get_by_index+0x5e/0x80 [ 6644.691780][ T253] fib6_nh_init+0x3d8/0x1580 [ 6644.691780][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6644.691780][ T253] ip6_route_add+0x1c/0x140 [ 6644.691780][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6644.691780][ T253] addrconf_add_dev+0xe2/0x170 [ 6644.691780][ T253] inet6_addr_add+0x12f/0xa40 [ 6644.691780][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6644.691780][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6644.691780][ T253] netlink_rcv_skb+0x130/0x360 [ 6644.691780][ T253] netlink_unicast+0x449/0x710 [ 6644.691780][ T253] netlink_sendmsg+0x723/0xbe0 [ 6644.691780][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6644.691780][ T253] ___sys_sendmsg+0xee/0x170 [ 6644.691780][ T253] __sys_sendmsg+0xcd/0x170 [ 6644.691780][ T253] do_syscall_64+0xc6/0x1e0 [ 6644.691780][ T253] [ 6644.693993][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6644.693993][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6644.693993][ T253] ipv6_find_idev+0x102/0x170 [ 6644.693993][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6644.693993][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6644.693993][ T253] netlink_rcv_skb+0x130/0x360 [ 6644.693993][ T253] netlink_unicast+0x449/0x710 [ 6644.693993][ T253] netlink_sendmsg+0x723/0xbe0 [ 6644.693993][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6644.693993][ T253] ___sys_sendmsg+0xee/0x170 [ 6644.693993][ T253] __sys_sendmsg+0xcd/0x170 [ 6644.693993][ T253] do_syscall_64+0xc6/0x1e0 [ 6644.693993][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6644.693993][ T253] [ 6644.695727][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6644.695727][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6644.695727][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6644.695727][ T253] ipv6_find_idev+0x102/0x170 [ 6644.695727][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6644.695727][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6644.695727][ T253] netlink_rcv_skb+0x130/0x360 [ 6644.695727][ T253] netlink_unicast+0x449/0x710 [ 6644.695727][ T253] netlink_sendmsg+0x723/0xbe0 [ 6644.695727][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6644.695727][ T253] ___sys_sendmsg+0xee/0x170 [ 6644.695727][ T253] __sys_sendmsg+0xcd/0x170 [ 6644.695727][ T253] do_syscall_64+0xc6/0x1e0 [ 6644.695727][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6644.695727][ T253] [ 6654.938299][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6654.938787][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6654.938787][ T253] dst_init+0x84/0x4a0 [ 6654.938787][ T253] dst_alloc+0x97/0x150 [ 6654.938787][ T253] ip6_dst_alloc+0x23/0x90 [ 6654.938787][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6654.938787][ T253] ip6_pol_route+0x56f/0x840 [ 6654.938787][ T253] fib6_rule_lookup+0x334/0x630 [ 6654.938787][ T253] ip6_route_output_flags+0x259/0x480 [ 6654.938787][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6654.938787][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6654.938787][ T253] netlink_rcv_skb+0x130/0x360 [ 6654.938787][ T253] netlink_unicast+0x449/0x710 [ 6654.938787][ T253] netlink_sendmsg+0x723/0xbe0 [ 6654.938787][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6654.938787][ T253] ___sys_sendmsg+0xee/0x170 [ 6654.938787][ T253] __sys_sendmsg+0xcd/0x170 [ 6654.938787][ T253] do_syscall_64+0xc6/0x1e0 [ 6654.938787][ T253] [ 6654.941009][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6654.941009][ T253] netdev_get_by_index+0x5e/0x80 [ 6654.941009][ T253] fib6_nh_init+0x3d8/0x1580 [ 6654.941009][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6654.941009][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6654.941009][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6654.941009][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6654.941009][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6654.941009][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6654.941009][ T253] addrconf_dad_begin+0x310/0x670 [ 6654.941009][ T253] addrconf_dad_work+0x10b/0xab0 [ 6654.941009][ T253] process_one_work+0x84d/0x18a0 [ 6654.941009][ T253] worker_thread+0x587/0xd30 [ 6654.941009][ T253] kthread+0x28a/0x350 [ 6654.941009][ T253] ret_from_fork+0x31/0x70 [ 6654.941009][ T253] ret_from_fork_asm+0x1a/0x30 [ 6654.941009][ T253] [ 6654.943191][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6654.943191][ T253] netdev_get_by_index+0x5e/0x80 [ 6654.943191][ T253] fib6_nh_init+0x3d8/0x1580 [ 6654.943191][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6654.943191][ T253] ip6_route_add+0x1c/0x140 [ 6654.943191][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6654.943191][ T253] inet6_addr_add+0x4f8/0xa40 [ 6654.943191][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6654.943191][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6654.943191][ T253] netlink_rcv_skb+0x130/0x360 [ 6654.943191][ T253] netlink_unicast+0x449/0x710 [ 6654.943191][ T253] netlink_sendmsg+0x723/0xbe0 [ 6654.943191][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6654.943191][ T253] ___sys_sendmsg+0xee/0x170 [ 6654.943191][ T253] __sys_sendmsg+0xcd/0x170 [ 6654.943191][ T253] do_syscall_64+0xc6/0x1e0 [ 6654.943191][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6654.943191][ T253] [ 6654.945435][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6654.945435][ T253] netdev_get_by_index+0x5e/0x80 [ 6654.945435][ T253] fib6_nh_init+0x3d8/0x1580 [ 6654.945435][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6654.945435][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6654.945435][ T253] ipv6_add_addr+0x411/0x2000 [ 6654.945435][ T253] inet6_addr_add+0x30e/0xa40 [ 6654.945435][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6654.945435][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6654.945435][ T253] netlink_rcv_skb+0x130/0x360 [ 6654.945435][ T253] netlink_unicast+0x449/0x710 [ 6654.945435][ T253] netlink_sendmsg+0x723/0xbe0 [ 6654.945435][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6654.945435][ T253] ___sys_sendmsg+0xee/0x170 [ 6654.945435][ T253] __sys_sendmsg+0xcd/0x170 [ 6654.945435][ T253] do_syscall_64+0xc6/0x1e0 [ 6654.945435][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6654.945435][ T253] [ 6654.947635][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6654.947635][ T253] netdev_get_by_index+0x5e/0x80 [ 6654.947635][ T253] fib6_nh_init+0x3d8/0x1580 [ 6654.947635][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6654.947635][ T253] ip6_route_add+0x1c/0x140 [ 6654.947635][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6654.947635][ T253] addrconf_add_dev+0xe2/0x170 [ 6654.947635][ T253] inet6_addr_add+0x12f/0xa40 [ 6654.947635][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6654.947635][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6654.947635][ T253] netlink_rcv_skb+0x130/0x360 [ 6654.947635][ T253] netlink_unicast+0x449/0x710 [ 6654.947635][ T253] netlink_sendmsg+0x723/0xbe0 [ 6654.947635][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6654.947635][ T253] ___sys_sendmsg+0xee/0x170 [ 6654.947635][ T253] __sys_sendmsg+0xcd/0x170 [ 6654.947635][ T253] do_syscall_64+0xc6/0x1e0 [ 6654.947635][ T253] [ 6654.949871][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6654.949871][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6654.949871][ T253] ipv6_find_idev+0x102/0x170 [ 6654.949871][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6654.949871][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6654.949871][ T253] netlink_rcv_skb+0x130/0x360 [ 6654.949871][ T253] netlink_unicast+0x449/0x710 [ 6654.949871][ T253] netlink_sendmsg+0x723/0xbe0 [ 6654.949871][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6654.949871][ T253] ___sys_sendmsg+0xee/0x170 [ 6654.949871][ T253] __sys_sendmsg+0xcd/0x170 [ 6654.949871][ T253] do_syscall_64+0xc6/0x1e0 [ 6654.949871][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6654.949871][ T253] [ 6654.951606][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6654.951606][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6654.951606][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6654.951606][ T253] ipv6_find_idev+0x102/0x170 [ 6654.951606][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6654.951606][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6654.951606][ T253] netlink_rcv_skb+0x130/0x360 [ 6654.951606][ T253] netlink_unicast+0x449/0x710 [ 6654.951606][ T253] netlink_sendmsg+0x723/0xbe0 [ 6654.951606][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6654.951606][ T253] ___sys_sendmsg+0xee/0x170 [ 6654.951606][ T253] __sys_sendmsg+0xcd/0x170 [ 6654.951606][ T253] do_syscall_64+0xc6/0x1e0 [ 6654.951606][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6654.951606][ T253] [ 6665.194311][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6665.194782][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6665.194782][ T253] dst_init+0x84/0x4a0 [ 6665.194782][ T253] dst_alloc+0x97/0x150 [ 6665.194782][ T253] ip6_dst_alloc+0x23/0x90 [ 6665.194782][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6665.194782][ T253] ip6_pol_route+0x56f/0x840 [ 6665.194782][ T253] fib6_rule_lookup+0x334/0x630 [ 6665.194782][ T253] ip6_route_output_flags+0x259/0x480 [ 6665.194782][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6665.194782][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6665.194782][ T253] netlink_rcv_skb+0x130/0x360 [ 6665.194782][ T253] netlink_unicast+0x449/0x710 [ 6665.194782][ T253] netlink_sendmsg+0x723/0xbe0 [ 6665.194782][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6665.194782][ T253] ___sys_sendmsg+0xee/0x170 [ 6665.194782][ T253] __sys_sendmsg+0xcd/0x170 [ 6665.194782][ T253] do_syscall_64+0xc6/0x1e0 [ 6665.194782][ T253] [ 6665.196937][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6665.196937][ T253] netdev_get_by_index+0x5e/0x80 [ 6665.196937][ T253] fib6_nh_init+0x3d8/0x1580 [ 6665.196937][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6665.196937][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6665.196937][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6665.196937][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6665.196937][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6665.196937][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6665.196937][ T253] addrconf_dad_begin+0x310/0x670 [ 6665.196937][ T253] addrconf_dad_work+0x10b/0xab0 [ 6665.196937][ T253] process_one_work+0x84d/0x18a0 [ 6665.196937][ T253] worker_thread+0x587/0xd30 [ 6665.196937][ T253] kthread+0x28a/0x350 [ 6665.196937][ T253] ret_from_fork+0x31/0x70 [ 6665.196937][ T253] ret_from_fork_asm+0x1a/0x30 [ 6665.196937][ T253] [ 6665.199124][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6665.199124][ T253] netdev_get_by_index+0x5e/0x80 [ 6665.199124][ T253] fib6_nh_init+0x3d8/0x1580 [ 6665.199124][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6665.199124][ T253] ip6_route_add+0x1c/0x140 [ 6665.199124][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6665.199124][ T253] inet6_addr_add+0x4f8/0xa40 [ 6665.199124][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6665.199124][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6665.199124][ T253] netlink_rcv_skb+0x130/0x360 [ 6665.199124][ T253] netlink_unicast+0x449/0x710 [ 6665.199124][ T253] netlink_sendmsg+0x723/0xbe0 [ 6665.199124][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6665.199124][ T253] ___sys_sendmsg+0xee/0x170 [ 6665.199124][ T253] __sys_sendmsg+0xcd/0x170 [ 6665.199124][ T253] do_syscall_64+0xc6/0x1e0 [ 6665.199124][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6665.199124][ T253] [ 6665.201385][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6665.201385][ T253] netdev_get_by_index+0x5e/0x80 [ 6665.201385][ T253] fib6_nh_init+0x3d8/0x1580 [ 6665.201385][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6665.201385][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6665.201385][ T253] ipv6_add_addr+0x411/0x2000 [ 6665.201385][ T253] inet6_addr_add+0x30e/0xa40 [ 6665.201385][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6665.201385][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6665.201385][ T253] netlink_rcv_skb+0x130/0x360 [ 6665.201385][ T253] netlink_unicast+0x449/0x710 [ 6665.201385][ T253] netlink_sendmsg+0x723/0xbe0 [ 6665.201385][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6665.201385][ T253] ___sys_sendmsg+0xee/0x170 [ 6665.201385][ T253] __sys_sendmsg+0xcd/0x170 [ 6665.201385][ T253] do_syscall_64+0xc6/0x1e0 [ 6665.201385][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6665.201385][ T253] [ 6665.203628][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6665.203628][ T253] netdev_get_by_index+0x5e/0x80 [ 6665.203628][ T253] fib6_nh_init+0x3d8/0x1580 [ 6665.203628][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6665.203628][ T253] ip6_route_add+0x1c/0x140 [ 6665.203628][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6665.203628][ T253] addrconf_add_dev+0xe2/0x170 [ 6665.203628][ T253] inet6_addr_add+0x12f/0xa40 [ 6665.203628][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6665.203628][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6665.203628][ T253] netlink_rcv_skb+0x130/0x360 [ 6665.203628][ T253] netlink_unicast+0x449/0x710 [ 6665.203628][ T253] netlink_sendmsg+0x723/0xbe0 [ 6665.203628][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6665.203628][ T253] ___sys_sendmsg+0xee/0x170 [ 6665.203628][ T253] __sys_sendmsg+0xcd/0x170 [ 6665.203628][ T253] do_syscall_64+0xc6/0x1e0 [ 6665.203628][ T253] [ 6665.205837][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6665.205837][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6665.205837][ T253] ipv6_find_idev+0x102/0x170 [ 6665.205837][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6665.205837][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6665.205837][ T253] netlink_rcv_skb+0x130/0x360 [ 6665.205837][ T253] netlink_unicast+0x449/0x710 [ 6665.205837][ T253] netlink_sendmsg+0x723/0xbe0 [ 6665.205837][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6665.205837][ T253] ___sys_sendmsg+0xee/0x170 [ 6665.205837][ T253] __sys_sendmsg+0xcd/0x170 [ 6665.205837][ T253] do_syscall_64+0xc6/0x1e0 [ 6665.205837][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6665.205837][ T253] [ 6665.207565][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6665.207565][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6665.207565][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6665.207565][ T253] ipv6_find_idev+0x102/0x170 [ 6665.207565][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6665.207565][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6665.207565][ T253] netlink_rcv_skb+0x130/0x360 [ 6665.207565][ T253] netlink_unicast+0x449/0x710 [ 6665.207565][ T253] netlink_sendmsg+0x723/0xbe0 [ 6665.207565][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6665.207565][ T253] ___sys_sendmsg+0xee/0x170 [ 6665.207565][ T253] __sys_sendmsg+0xcd/0x170 [ 6665.207565][ T253] do_syscall_64+0xc6/0x1e0 [ 6665.207565][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6665.207565][ T253] [ 6675.450312][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6675.450799][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6675.450799][ T253] dst_init+0x84/0x4a0 [ 6675.450799][ T253] dst_alloc+0x97/0x150 [ 6675.450799][ T253] ip6_dst_alloc+0x23/0x90 [ 6675.450799][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6675.450799][ T253] ip6_pol_route+0x56f/0x840 [ 6675.450799][ T253] fib6_rule_lookup+0x334/0x630 [ 6675.450799][ T253] ip6_route_output_flags+0x259/0x480 [ 6675.450799][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6675.450799][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6675.450799][ T253] netlink_rcv_skb+0x130/0x360 [ 6675.450799][ T253] netlink_unicast+0x449/0x710 [ 6675.450799][ T253] netlink_sendmsg+0x723/0xbe0 [ 6675.450799][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6675.450799][ T253] ___sys_sendmsg+0xee/0x170 [ 6675.450799][ T253] __sys_sendmsg+0xcd/0x170 [ 6675.450799][ T253] do_syscall_64+0xc6/0x1e0 [ 6675.450799][ T253] [ 6675.453007][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6675.453007][ T253] netdev_get_by_index+0x5e/0x80 [ 6675.453007][ T253] fib6_nh_init+0x3d8/0x1580 [ 6675.453007][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6675.453007][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6675.453007][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6675.453007][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6675.453007][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6675.453007][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6675.453007][ T253] addrconf_dad_begin+0x310/0x670 [ 6675.453007][ T253] addrconf_dad_work+0x10b/0xab0 [ 6675.453007][ T253] process_one_work+0x84d/0x18a0 [ 6675.453007][ T253] worker_thread+0x587/0xd30 [ 6675.453007][ T253] kthread+0x28a/0x350 [ 6675.453007][ T253] ret_from_fork+0x31/0x70 [ 6675.453007][ T253] ret_from_fork_asm+0x1a/0x30 [ 6675.453007][ T253] [ 6675.455146][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6675.455146][ T253] netdev_get_by_index+0x5e/0x80 [ 6675.455146][ T253] fib6_nh_init+0x3d8/0x1580 [ 6675.455146][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6675.455146][ T253] ip6_route_add+0x1c/0x140 [ 6675.455146][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6675.455146][ T253] inet6_addr_add+0x4f8/0xa40 [ 6675.455146][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6675.455146][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6675.455146][ T253] netlink_rcv_skb+0x130/0x360 [ 6675.455146][ T253] netlink_unicast+0x449/0x710 [ 6675.455146][ T253] netlink_sendmsg+0x723/0xbe0 [ 6675.455146][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6675.455146][ T253] ___sys_sendmsg+0xee/0x170 [ 6675.455146][ T253] __sys_sendmsg+0xcd/0x170 [ 6675.455146][ T253] do_syscall_64+0xc6/0x1e0 [ 6675.455146][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6675.455146][ T253] [ 6675.457376][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6675.457376][ T253] netdev_get_by_index+0x5e/0x80 [ 6675.457376][ T253] fib6_nh_init+0x3d8/0x1580 [ 6675.457376][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6675.457376][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6675.457376][ T253] ipv6_add_addr+0x411/0x2000 [ 6675.457376][ T253] inet6_addr_add+0x30e/0xa40 [ 6675.457376][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6675.457376][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6675.457376][ T253] netlink_rcv_skb+0x130/0x360 [ 6675.457376][ T253] netlink_unicast+0x449/0x710 [ 6675.457376][ T253] netlink_sendmsg+0x723/0xbe0 [ 6675.457376][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6675.457376][ T253] ___sys_sendmsg+0xee/0x170 [ 6675.457376][ T253] __sys_sendmsg+0xcd/0x170 [ 6675.457376][ T253] do_syscall_64+0xc6/0x1e0 [ 6675.457376][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6675.457376][ T253] [ 6675.459619][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6675.459619][ T253] netdev_get_by_index+0x5e/0x80 [ 6675.459619][ T253] fib6_nh_init+0x3d8/0x1580 [ 6675.459619][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6675.459619][ T253] ip6_route_add+0x1c/0x140 [ 6675.459619][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6675.459619][ T253] addrconf_add_dev+0xe2/0x170 [ 6675.459619][ T253] inet6_addr_add+0x12f/0xa40 [ 6675.459619][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6675.459619][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6675.459619][ T253] netlink_rcv_skb+0x130/0x360 [ 6675.459619][ T253] netlink_unicast+0x449/0x710 [ 6675.459619][ T253] netlink_sendmsg+0x723/0xbe0 [ 6675.459619][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6675.459619][ T253] ___sys_sendmsg+0xee/0x170 [ 6675.459619][ T253] __sys_sendmsg+0xcd/0x170 [ 6675.459619][ T253] do_syscall_64+0xc6/0x1e0 [ 6675.459619][ T253] [ 6675.461817][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6675.461817][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6675.461817][ T253] ipv6_find_idev+0x102/0x170 [ 6675.461817][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6675.461817][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6675.461817][ T253] netlink_rcv_skb+0x130/0x360 [ 6675.461817][ T253] netlink_unicast+0x449/0x710 [ 6675.461817][ T253] netlink_sendmsg+0x723/0xbe0 [ 6675.461817][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6675.461817][ T253] ___sys_sendmsg+0xee/0x170 [ 6675.461817][ T253] __sys_sendmsg+0xcd/0x170 [ 6675.461817][ T253] do_syscall_64+0xc6/0x1e0 [ 6675.461817][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6675.461817][ T253] [ 6675.463539][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6675.463539][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6675.463539][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6675.463539][ T253] ipv6_find_idev+0x102/0x170 [ 6675.463539][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6675.463539][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6675.463539][ T253] netlink_rcv_skb+0x130/0x360 [ 6675.463539][ T253] netlink_unicast+0x449/0x710 [ 6675.463539][ T253] netlink_sendmsg+0x723/0xbe0 [ 6675.463539][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6675.463539][ T253] ___sys_sendmsg+0xee/0x170 [ 6675.463539][ T253] __sys_sendmsg+0xcd/0x170 [ 6675.463539][ T253] do_syscall_64+0xc6/0x1e0 [ 6675.463539][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6675.463539][ T253] [ 6685.706316][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6685.706780][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6685.706780][ T253] dst_init+0x84/0x4a0 [ 6685.706780][ T253] dst_alloc+0x97/0x150 [ 6685.706780][ T253] ip6_dst_alloc+0x23/0x90 [ 6685.706780][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6685.706780][ T253] ip6_pol_route+0x56f/0x840 [ 6685.706780][ T253] fib6_rule_lookup+0x334/0x630 [ 6685.706780][ T253] ip6_route_output_flags+0x259/0x480 [ 6685.706780][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6685.706780][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6685.706780][ T253] netlink_rcv_skb+0x130/0x360 [ 6685.706780][ T253] netlink_unicast+0x449/0x710 [ 6685.706780][ T253] netlink_sendmsg+0x723/0xbe0 [ 6685.706780][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6685.706780][ T253] ___sys_sendmsg+0xee/0x170 [ 6685.706780][ T253] __sys_sendmsg+0xcd/0x170 [ 6685.706780][ T253] do_syscall_64+0xc6/0x1e0 [ 6685.706780][ T253] [ 6685.708995][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6685.708995][ T253] netdev_get_by_index+0x5e/0x80 [ 6685.708995][ T253] fib6_nh_init+0x3d8/0x1580 [ 6685.708995][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6685.708995][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6685.708995][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6685.708995][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6685.708995][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6685.708995][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6685.708995][ T253] addrconf_dad_begin+0x310/0x670 [ 6685.708995][ T253] addrconf_dad_work+0x10b/0xab0 [ 6685.708995][ T253] process_one_work+0x84d/0x18a0 [ 6685.708995][ T253] worker_thread+0x587/0xd30 [ 6685.708995][ T253] kthread+0x28a/0x350 [ 6685.708995][ T253] ret_from_fork+0x31/0x70 [ 6685.708995][ T253] ret_from_fork_asm+0x1a/0x30 [ 6685.708995][ T253] [ 6685.711160][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6685.711160][ T253] netdev_get_by_index+0x5e/0x80 [ 6685.711160][ T253] fib6_nh_init+0x3d8/0x1580 [ 6685.711160][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6685.711160][ T253] ip6_route_add+0x1c/0x140 [ 6685.711160][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6685.711160][ T253] inet6_addr_add+0x4f8/0xa40 [ 6685.711160][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6685.711160][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6685.711160][ T253] netlink_rcv_skb+0x130/0x360 [ 6685.711160][ T253] netlink_unicast+0x449/0x710 [ 6685.711160][ T253] netlink_sendmsg+0x723/0xbe0 [ 6685.711160][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6685.711160][ T253] ___sys_sendmsg+0xee/0x170 [ 6685.711160][ T253] __sys_sendmsg+0xcd/0x170 [ 6685.711160][ T253] do_syscall_64+0xc6/0x1e0 [ 6685.711160][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6685.711160][ T253] [ 6685.713393][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6685.713393][ T253] netdev_get_by_index+0x5e/0x80 [ 6685.713393][ T253] fib6_nh_init+0x3d8/0x1580 [ 6685.713393][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6685.713393][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6685.713393][ T253] ipv6_add_addr+0x411/0x2000 [ 6685.713393][ T253] inet6_addr_add+0x30e/0xa40 [ 6685.713393][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6685.713393][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6685.713393][ T253] netlink_rcv_skb+0x130/0x360 [ 6685.713393][ T253] netlink_unicast+0x449/0x710 [ 6685.713393][ T253] netlink_sendmsg+0x723/0xbe0 [ 6685.713393][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6685.713393][ T253] ___sys_sendmsg+0xee/0x170 [ 6685.713393][ T253] __sys_sendmsg+0xcd/0x170 [ 6685.713393][ T253] do_syscall_64+0xc6/0x1e0 [ 6685.713393][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6685.713393][ T253] [ 6685.715598][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6685.715598][ T253] netdev_get_by_index+0x5e/0x80 [ 6685.715598][ T253] fib6_nh_init+0x3d8/0x1580 [ 6685.715598][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6685.715598][ T253] ip6_route_add+0x1c/0x140 [ 6685.715598][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6685.715598][ T253] addrconf_add_dev+0xe2/0x170 [ 6685.715598][ T253] inet6_addr_add+0x12f/0xa40 [ 6685.715598][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6685.715598][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6685.715598][ T253] netlink_rcv_skb+0x130/0x360 [ 6685.715598][ T253] netlink_unicast+0x449/0x710 [ 6685.715598][ T253] netlink_sendmsg+0x723/0xbe0 [ 6685.715598][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6685.715598][ T253] ___sys_sendmsg+0xee/0x170 [ 6685.715598][ T253] __sys_sendmsg+0xcd/0x170 [ 6685.715598][ T253] do_syscall_64+0xc6/0x1e0 [ 6685.715598][ T253] [ 6685.717737][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6685.717737][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6685.717737][ T253] ipv6_find_idev+0x102/0x170 [ 6685.717737][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6685.717737][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6685.717737][ T253] netlink_rcv_skb+0x130/0x360 [ 6685.717737][ T253] netlink_unicast+0x449/0x710 [ 6685.717737][ T253] netlink_sendmsg+0x723/0xbe0 [ 6685.717737][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6685.717737][ T253] ___sys_sendmsg+0xee/0x170 [ 6685.717737][ T253] __sys_sendmsg+0xcd/0x170 [ 6685.717737][ T253] do_syscall_64+0xc6/0x1e0 [ 6685.717737][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6685.717737][ T253] [ 6685.719490][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6685.719490][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6685.719490][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6685.719490][ T253] ipv6_find_idev+0x102/0x170 [ 6685.719490][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6685.719490][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6685.719490][ T253] netlink_rcv_skb+0x130/0x360 [ 6685.719490][ T253] netlink_unicast+0x449/0x710 [ 6685.719490][ T253] netlink_sendmsg+0x723/0xbe0 [ 6685.719490][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6685.719490][ T253] ___sys_sendmsg+0xee/0x170 [ 6685.719490][ T253] __sys_sendmsg+0xcd/0x170 [ 6685.719490][ T253] do_syscall_64+0xc6/0x1e0 [ 6685.719490][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6685.719490][ T253] [ 6695.874306][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6695.874799][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6695.874799][ T253] dst_init+0x84/0x4a0 [ 6695.874799][ T253] dst_alloc+0x97/0x150 [ 6695.874799][ T253] ip6_dst_alloc+0x23/0x90 [ 6695.874799][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6695.874799][ T253] ip6_pol_route+0x56f/0x840 [ 6695.874799][ T253] fib6_rule_lookup+0x334/0x630 [ 6695.874799][ T253] ip6_route_output_flags+0x259/0x480 [ 6695.874799][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6695.874799][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6695.874799][ T253] netlink_rcv_skb+0x130/0x360 [ 6695.874799][ T253] netlink_unicast+0x449/0x710 [ 6695.874799][ T253] netlink_sendmsg+0x723/0xbe0 [ 6695.874799][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6695.874799][ T253] ___sys_sendmsg+0xee/0x170 [ 6695.874799][ T253] __sys_sendmsg+0xcd/0x170 [ 6695.874799][ T253] do_syscall_64+0xc6/0x1e0 [ 6695.874799][ T253] [ 6695.877004][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6695.877004][ T253] netdev_get_by_index+0x5e/0x80 [ 6695.877004][ T253] fib6_nh_init+0x3d8/0x1580 [ 6695.877004][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6695.877004][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6695.877004][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6695.877004][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6695.877004][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6695.877004][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6695.877004][ T253] addrconf_dad_begin+0x310/0x670 [ 6695.877004][ T253] addrconf_dad_work+0x10b/0xab0 [ 6695.877004][ T253] process_one_work+0x84d/0x18a0 [ 6695.877004][ T253] worker_thread+0x587/0xd30 [ 6695.877004][ T253] kthread+0x28a/0x350 [ 6695.877004][ T253] ret_from_fork+0x31/0x70 [ 6695.877004][ T253] ret_from_fork_asm+0x1a/0x30 [ 6695.877004][ T253] [ 6695.879156][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6695.879156][ T253] netdev_get_by_index+0x5e/0x80 [ 6695.879156][ T253] fib6_nh_init+0x3d8/0x1580 [ 6695.879156][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6695.879156][ T253] ip6_route_add+0x1c/0x140 [ 6695.879156][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6695.879156][ T253] inet6_addr_add+0x4f8/0xa40 [ 6695.879156][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6695.879156][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6695.879156][ T253] netlink_rcv_skb+0x130/0x360 [ 6695.879156][ T253] netlink_unicast+0x449/0x710 [ 6695.879156][ T253] netlink_sendmsg+0x723/0xbe0 [ 6695.879156][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6695.879156][ T253] ___sys_sendmsg+0xee/0x170 [ 6695.879156][ T253] __sys_sendmsg+0xcd/0x170 [ 6695.879156][ T253] do_syscall_64+0xc6/0x1e0 [ 6695.879156][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6695.879156][ T253] [ 6695.881384][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6695.881384][ T253] netdev_get_by_index+0x5e/0x80 [ 6695.881384][ T253] fib6_nh_init+0x3d8/0x1580 [ 6695.881384][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6695.881384][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6695.881384][ T253] ipv6_add_addr+0x411/0x2000 [ 6695.881384][ T253] inet6_addr_add+0x30e/0xa40 [ 6695.881384][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6695.881384][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6695.881384][ T253] netlink_rcv_skb+0x130/0x360 [ 6695.881384][ T253] netlink_unicast+0x449/0x710 [ 6695.881384][ T253] netlink_sendmsg+0x723/0xbe0 [ 6695.881384][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6695.881384][ T253] ___sys_sendmsg+0xee/0x170 [ 6695.881384][ T253] __sys_sendmsg+0xcd/0x170 [ 6695.881384][ T253] do_syscall_64+0xc6/0x1e0 [ 6695.881384][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6695.881384][ T253] [ 6695.883617][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6695.883617][ T253] netdev_get_by_index+0x5e/0x80 [ 6695.883617][ T253] fib6_nh_init+0x3d8/0x1580 [ 6695.883617][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6695.883617][ T253] ip6_route_add+0x1c/0x140 [ 6695.883617][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6695.883617][ T253] addrconf_add_dev+0xe2/0x170 [ 6695.883617][ T253] inet6_addr_add+0x12f/0xa40 [ 6695.883617][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6695.883617][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6695.883617][ T253] netlink_rcv_skb+0x130/0x360 [ 6695.883617][ T253] netlink_unicast+0x449/0x710 [ 6695.883617][ T253] netlink_sendmsg+0x723/0xbe0 [ 6695.883617][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6695.883617][ T253] ___sys_sendmsg+0xee/0x170 [ 6695.883617][ T253] __sys_sendmsg+0xcd/0x170 [ 6695.883617][ T253] do_syscall_64+0xc6/0x1e0 [ 6695.883617][ T253] [ 6695.885822][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6695.885822][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6695.885822][ T253] ipv6_find_idev+0x102/0x170 [ 6695.885822][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6695.885822][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6695.885822][ T253] netlink_rcv_skb+0x130/0x360 [ 6695.885822][ T253] netlink_unicast+0x449/0x710 [ 6695.885822][ T253] netlink_sendmsg+0x723/0xbe0 [ 6695.885822][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6695.885822][ T253] ___sys_sendmsg+0xee/0x170 [ 6695.885822][ T253] __sys_sendmsg+0xcd/0x170 [ 6695.885822][ T253] do_syscall_64+0xc6/0x1e0 [ 6695.885822][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6695.885822][ T253] [ 6695.887541][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6695.887541][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6695.887541][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6695.887541][ T253] ipv6_find_idev+0x102/0x170 [ 6695.887541][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6695.887541][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6695.887541][ T253] netlink_rcv_skb+0x130/0x360 [ 6695.887541][ T253] netlink_unicast+0x449/0x710 [ 6695.887541][ T253] netlink_sendmsg+0x723/0xbe0 [ 6695.887541][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6695.887541][ T253] ___sys_sendmsg+0xee/0x170 [ 6695.887541][ T253] __sys_sendmsg+0xcd/0x170 [ 6695.887541][ T253] do_syscall_64+0xc6/0x1e0 [ 6695.887541][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6695.887541][ T253] [ 6706.138372][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6706.138909][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6706.138909][ T253] dst_init+0x84/0x4a0 [ 6706.138909][ T253] dst_alloc+0x97/0x150 [ 6706.138909][ T253] ip6_dst_alloc+0x23/0x90 [ 6706.138909][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6706.138909][ T253] ip6_pol_route+0x56f/0x840 [ 6706.138909][ T253] fib6_rule_lookup+0x334/0x630 [ 6706.138909][ T253] ip6_route_output_flags+0x259/0x480 [ 6706.138909][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6706.138909][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6706.138909][ T253] netlink_rcv_skb+0x130/0x360 [ 6706.138909][ T253] netlink_unicast+0x449/0x710 [ 6706.138909][ T253] netlink_sendmsg+0x723/0xbe0 [ 6706.138909][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6706.138909][ T253] ___sys_sendmsg+0xee/0x170 [ 6706.138909][ T253] __sys_sendmsg+0xcd/0x170 [ 6706.138909][ T253] do_syscall_64+0xc6/0x1e0 [ 6706.138909][ T253] [ 6706.141125][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6706.141125][ T253] netdev_get_by_index+0x5e/0x80 [ 6706.141125][ T253] fib6_nh_init+0x3d8/0x1580 [ 6706.141125][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6706.141125][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6706.141125][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6706.141125][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6706.141125][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6706.141125][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6706.141125][ T253] addrconf_dad_begin+0x310/0x670 [ 6706.141125][ T253] addrconf_dad_work+0x10b/0xab0 [ 6706.141125][ T253] process_one_work+0x84d/0x18a0 [ 6706.141125][ T253] worker_thread+0x587/0xd30 [ 6706.141125][ T253] kthread+0x28a/0x350 [ 6706.141125][ T253] ret_from_fork+0x31/0x70 [ 6706.141125][ T253] ret_from_fork_asm+0x1a/0x30 [ 6706.141125][ T253] [ 6706.143211][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6706.143211][ T253] netdev_get_by_index+0x5e/0x80 [ 6706.143211][ T253] fib6_nh_init+0x3d8/0x1580 [ 6706.143211][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6706.143211][ T253] ip6_route_add+0x1c/0x140 [ 6706.143211][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6706.143211][ T253] inet6_addr_add+0x4f8/0xa40 [ 6706.143211][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6706.143211][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6706.143211][ T253] netlink_rcv_skb+0x130/0x360 [ 6706.143211][ T253] netlink_unicast+0x449/0x710 [ 6706.143211][ T253] netlink_sendmsg+0x723/0xbe0 [ 6706.143211][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6706.143211][ T253] ___sys_sendmsg+0xee/0x170 [ 6706.143211][ T253] __sys_sendmsg+0xcd/0x170 [ 6706.143211][ T253] do_syscall_64+0xc6/0x1e0 [ 6706.143211][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6706.143211][ T253] [ 6706.145438][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6706.145438][ T253] netdev_get_by_index+0x5e/0x80 [ 6706.145438][ T253] fib6_nh_init+0x3d8/0x1580 [ 6706.145438][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6706.145438][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6706.145438][ T253] ipv6_add_addr+0x411/0x2000 [ 6706.145438][ T253] inet6_addr_add+0x30e/0xa40 [ 6706.145438][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6706.145438][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6706.145438][ T253] netlink_rcv_skb+0x130/0x360 [ 6706.145438][ T253] netlink_unicast+0x449/0x710 [ 6706.145438][ T253] netlink_sendmsg+0x723/0xbe0 [ 6706.145438][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6706.145438][ T253] ___sys_sendmsg+0xee/0x170 [ 6706.145438][ T253] __sys_sendmsg+0xcd/0x170 [ 6706.145438][ T253] do_syscall_64+0xc6/0x1e0 [ 6706.145438][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6706.145438][ T253] [ 6706.147697][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6706.147697][ T253] netdev_get_by_index+0x5e/0x80 [ 6706.147697][ T253] fib6_nh_init+0x3d8/0x1580 [ 6706.147697][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6706.147697][ T253] ip6_route_add+0x1c/0x140 [ 6706.147697][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6706.147697][ T253] addrconf_add_dev+0xe2/0x170 [ 6706.147697][ T253] inet6_addr_add+0x12f/0xa40 [ 6706.147697][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6706.147697][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6706.147697][ T253] netlink_rcv_skb+0x130/0x360 [ 6706.147697][ T253] netlink_unicast+0x449/0x710 [ 6706.147697][ T253] netlink_sendmsg+0x723/0xbe0 [ 6706.147697][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6706.147697][ T253] ___sys_sendmsg+0xee/0x170 [ 6706.147697][ T253] __sys_sendmsg+0xcd/0x170 [ 6706.147697][ T253] do_syscall_64+0xc6/0x1e0 [ 6706.147697][ T253] [ 6706.149904][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6706.149904][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6706.149904][ T253] ipv6_find_idev+0x102/0x170 [ 6706.149904][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6706.149904][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6706.149904][ T253] netlink_rcv_skb+0x130/0x360 [ 6706.149904][ T253] netlink_unicast+0x449/0x710 [ 6706.149904][ T253] netlink_sendmsg+0x723/0xbe0 [ 6706.149904][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6706.149904][ T253] ___sys_sendmsg+0xee/0x170 [ 6706.149904][ T253] __sys_sendmsg+0xcd/0x170 [ 6706.149904][ T253] do_syscall_64+0xc6/0x1e0 [ 6706.149904][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6706.149904][ T253] [ 6706.151666][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6706.151666][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6706.151666][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6706.151666][ T253] ipv6_find_idev+0x102/0x170 [ 6706.151666][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6706.151666][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6706.151666][ T253] netlink_rcv_skb+0x130/0x360 [ 6706.151666][ T253] netlink_unicast+0x449/0x710 [ 6706.151666][ T253] netlink_sendmsg+0x723/0xbe0 [ 6706.151666][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6706.151666][ T253] ___sys_sendmsg+0xee/0x170 [ 6706.151666][ T253] __sys_sendmsg+0xcd/0x170 [ 6706.151666][ T253] do_syscall_64+0xc6/0x1e0 [ 6706.151666][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6706.151666][ T253] [ 6716.290241][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6716.290744][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6716.290744][ T253] dst_init+0x84/0x4a0 [ 6716.290744][ T253] dst_alloc+0x97/0x150 [ 6716.290744][ T253] ip6_dst_alloc+0x23/0x90 [ 6716.290744][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6716.290744][ T253] ip6_pol_route+0x56f/0x840 [ 6716.290744][ T253] fib6_rule_lookup+0x334/0x630 [ 6716.290744][ T253] ip6_route_output_flags+0x259/0x480 [ 6716.290744][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6716.290744][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6716.290744][ T253] netlink_rcv_skb+0x130/0x360 [ 6716.290744][ T253] netlink_unicast+0x449/0x710 [ 6716.290744][ T253] netlink_sendmsg+0x723/0xbe0 [ 6716.290744][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6716.290744][ T253] ___sys_sendmsg+0xee/0x170 [ 6716.290744][ T253] __sys_sendmsg+0xcd/0x170 [ 6716.290744][ T253] do_syscall_64+0xc6/0x1e0 [ 6716.290744][ T253] [ 6716.292883][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6716.292883][ T253] netdev_get_by_index+0x5e/0x80 [ 6716.292883][ T253] fib6_nh_init+0x3d8/0x1580 [ 6716.292883][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6716.292883][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6716.292883][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6716.292883][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6716.292883][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6716.292883][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6716.292883][ T253] addrconf_dad_begin+0x310/0x670 [ 6716.292883][ T253] addrconf_dad_work+0x10b/0xab0 [ 6716.292883][ T253] process_one_work+0x84d/0x18a0 [ 6716.292883][ T253] worker_thread+0x587/0xd30 [ 6716.292883][ T253] kthread+0x28a/0x350 [ 6716.292883][ T253] ret_from_fork+0x31/0x70 [ 6716.292883][ T253] ret_from_fork_asm+0x1a/0x30 [ 6716.292883][ T253] [ 6716.294959][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6716.294959][ T253] netdev_get_by_index+0x5e/0x80 [ 6716.294959][ T253] fib6_nh_init+0x3d8/0x1580 [ 6716.294959][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6716.294959][ T253] ip6_route_add+0x1c/0x140 [ 6716.294959][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6716.294959][ T253] inet6_addr_add+0x4f8/0xa40 [ 6716.294959][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6716.294959][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6716.294959][ T253] netlink_rcv_skb+0x130/0x360 [ 6716.294959][ T253] netlink_unicast+0x449/0x710 [ 6716.294959][ T253] netlink_sendmsg+0x723/0xbe0 [ 6716.294959][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6716.294959][ T253] ___sys_sendmsg+0xee/0x170 [ 6716.294959][ T253] __sys_sendmsg+0xcd/0x170 [ 6716.294959][ T253] do_syscall_64+0xc6/0x1e0 [ 6716.294959][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6716.294959][ T253] [ 6716.297133][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6716.297133][ T253] netdev_get_by_index+0x5e/0x80 [ 6716.297133][ T253] fib6_nh_init+0x3d8/0x1580 [ 6716.297133][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6716.297133][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6716.297133][ T253] ipv6_add_addr+0x411/0x2000 [ 6716.297133][ T253] inet6_addr_add+0x30e/0xa40 [ 6716.297133][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6716.297133][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6716.297133][ T253] netlink_rcv_skb+0x130/0x360 [ 6716.297133][ T253] netlink_unicast+0x449/0x710 [ 6716.297133][ T253] netlink_sendmsg+0x723/0xbe0 [ 6716.297133][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6716.297133][ T253] ___sys_sendmsg+0xee/0x170 [ 6716.297133][ T253] __sys_sendmsg+0xcd/0x170 [ 6716.297133][ T253] do_syscall_64+0xc6/0x1e0 [ 6716.297133][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6716.297133][ T253] [ 6716.299354][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6716.299354][ T253] netdev_get_by_index+0x5e/0x80 [ 6716.299354][ T253] fib6_nh_init+0x3d8/0x1580 [ 6716.299354][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6716.299354][ T253] ip6_route_add+0x1c/0x140 [ 6716.299354][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6716.299354][ T253] addrconf_add_dev+0xe2/0x170 [ 6716.299354][ T253] inet6_addr_add+0x12f/0xa40 [ 6716.299354][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6716.299354][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6716.299354][ T253] netlink_rcv_skb+0x130/0x360 [ 6716.299354][ T253] netlink_unicast+0x449/0x710 [ 6716.299354][ T253] netlink_sendmsg+0x723/0xbe0 [ 6716.299354][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6716.299354][ T253] ___sys_sendmsg+0xee/0x170 [ 6716.299354][ T253] __sys_sendmsg+0xcd/0x170 [ 6716.299354][ T253] do_syscall_64+0xc6/0x1e0 [ 6716.299354][ T253] [ 6716.301574][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6716.301574][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6716.301574][ T253] ipv6_find_idev+0x102/0x170 [ 6716.301574][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6716.301574][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6716.301574][ T253] netlink_rcv_skb+0x130/0x360 [ 6716.301574][ T253] netlink_unicast+0x449/0x710 [ 6716.301574][ T253] netlink_sendmsg+0x723/0xbe0 [ 6716.301574][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6716.301574][ T253] ___sys_sendmsg+0xee/0x170 [ 6716.301574][ T253] __sys_sendmsg+0xcd/0x170 [ 6716.301574][ T253] do_syscall_64+0xc6/0x1e0 [ 6716.301574][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6716.301574][ T253] [ 6716.303288][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6716.303288][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6716.303288][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6716.303288][ T253] ipv6_find_idev+0x102/0x170 [ 6716.303288][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6716.303288][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6716.303288][ T253] netlink_rcv_skb+0x130/0x360 [ 6716.303288][ T253] netlink_unicast+0x449/0x710 [ 6716.303288][ T253] netlink_sendmsg+0x723/0xbe0 [ 6716.303288][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6716.303288][ T253] ___sys_sendmsg+0xee/0x170 [ 6716.303288][ T253] __sys_sendmsg+0xcd/0x170 [ 6716.303288][ T253] do_syscall_64+0xc6/0x1e0 [ 6716.303288][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6716.303288][ T253] [ 6726.546290][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6726.546802][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6726.546802][ T253] dst_init+0x84/0x4a0 [ 6726.546802][ T253] dst_alloc+0x97/0x150 [ 6726.546802][ T253] ip6_dst_alloc+0x23/0x90 [ 6726.546802][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6726.546802][ T253] ip6_pol_route+0x56f/0x840 [ 6726.546802][ T253] fib6_rule_lookup+0x334/0x630 [ 6726.546802][ T253] ip6_route_output_flags+0x259/0x480 [ 6726.546802][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6726.546802][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6726.546802][ T253] netlink_rcv_skb+0x130/0x360 [ 6726.546802][ T253] netlink_unicast+0x449/0x710 [ 6726.546802][ T253] netlink_sendmsg+0x723/0xbe0 [ 6726.546802][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6726.546802][ T253] ___sys_sendmsg+0xee/0x170 [ 6726.546802][ T253] __sys_sendmsg+0xcd/0x170 [ 6726.546802][ T253] do_syscall_64+0xc6/0x1e0 [ 6726.546802][ T253] [ 6726.549023][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6726.549023][ T253] netdev_get_by_index+0x5e/0x80 [ 6726.549023][ T253] fib6_nh_init+0x3d8/0x1580 [ 6726.549023][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6726.549023][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6726.549023][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6726.549023][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6726.549023][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6726.549023][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6726.549023][ T253] addrconf_dad_begin+0x310/0x670 [ 6726.549023][ T253] addrconf_dad_work+0x10b/0xab0 [ 6726.549023][ T253] process_one_work+0x84d/0x18a0 [ 6726.549023][ T253] worker_thread+0x587/0xd30 [ 6726.549023][ T253] kthread+0x28a/0x350 [ 6726.549023][ T253] ret_from_fork+0x31/0x70 [ 6726.549023][ T253] ret_from_fork_asm+0x1a/0x30 [ 6726.549023][ T253] [ 6726.551161][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6726.551161][ T253] netdev_get_by_index+0x5e/0x80 [ 6726.551161][ T253] fib6_nh_init+0x3d8/0x1580 [ 6726.551161][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6726.551161][ T253] ip6_route_add+0x1c/0x140 [ 6726.551161][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6726.551161][ T253] inet6_addr_add+0x4f8/0xa40 [ 6726.551161][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6726.551161][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6726.551161][ T253] netlink_rcv_skb+0x130/0x360 [ 6726.551161][ T253] netlink_unicast+0x449/0x710 [ 6726.551161][ T253] netlink_sendmsg+0x723/0xbe0 [ 6726.551161][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6726.551161][ T253] ___sys_sendmsg+0xee/0x170 [ 6726.551161][ T253] __sys_sendmsg+0xcd/0x170 [ 6726.551161][ T253] do_syscall_64+0xc6/0x1e0 [ 6726.551161][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6726.551161][ T253] [ 6726.553445][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6726.553445][ T253] netdev_get_by_index+0x5e/0x80 [ 6726.553445][ T253] fib6_nh_init+0x3d8/0x1580 [ 6726.553445][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6726.553445][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6726.553445][ T253] ipv6_add_addr+0x411/0x2000 [ 6726.553445][ T253] inet6_addr_add+0x30e/0xa40 [ 6726.553445][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6726.553445][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6726.553445][ T253] netlink_rcv_skb+0x130/0x360 [ 6726.553445][ T253] netlink_unicast+0x449/0x710 [ 6726.553445][ T253] netlink_sendmsg+0x723/0xbe0 [ 6726.553445][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6726.553445][ T253] ___sys_sendmsg+0xee/0x170 [ 6726.553445][ T253] __sys_sendmsg+0xcd/0x170 [ 6726.553445][ T253] do_syscall_64+0xc6/0x1e0 [ 6726.553445][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6726.553445][ T253] [ 6726.555648][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6726.555648][ T253] netdev_get_by_index+0x5e/0x80 [ 6726.555648][ T253] fib6_nh_init+0x3d8/0x1580 [ 6726.555648][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6726.555648][ T253] ip6_route_add+0x1c/0x140 [ 6726.555648][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6726.555648][ T253] addrconf_add_dev+0xe2/0x170 [ 6726.555648][ T253] inet6_addr_add+0x12f/0xa40 [ 6726.555648][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6726.555648][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6726.555648][ T253] netlink_rcv_skb+0x130/0x360 [ 6726.555648][ T253] netlink_unicast+0x449/0x710 [ 6726.555648][ T253] netlink_sendmsg+0x723/0xbe0 [ 6726.555648][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6726.555648][ T253] ___sys_sendmsg+0xee/0x170 [ 6726.555648][ T253] __sys_sendmsg+0xcd/0x170 [ 6726.555648][ T253] do_syscall_64+0xc6/0x1e0 [ 6726.555648][ T253] [ 6726.557918][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6726.557918][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6726.557918][ T253] ipv6_find_idev+0x102/0x170 [ 6726.557918][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6726.557918][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6726.557918][ T253] netlink_rcv_skb+0x130/0x360 [ 6726.557918][ T253] netlink_unicast+0x449/0x710 [ 6726.557918][ T253] netlink_sendmsg+0x723/0xbe0 [ 6726.557918][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6726.557918][ T253] ___sys_sendmsg+0xee/0x170 [ 6726.557918][ T253] __sys_sendmsg+0xcd/0x170 [ 6726.557918][ T253] do_syscall_64+0xc6/0x1e0 [ 6726.557918][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6726.557918][ T253] [ 6726.559665][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6726.559665][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6726.559665][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6726.559665][ T253] ipv6_find_idev+0x102/0x170 [ 6726.559665][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6726.559665][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6726.559665][ T253] netlink_rcv_skb+0x130/0x360 [ 6726.559665][ T253] netlink_unicast+0x449/0x710 [ 6726.559665][ T253] netlink_sendmsg+0x723/0xbe0 [ 6726.559665][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6726.559665][ T253] ___sys_sendmsg+0xee/0x170 [ 6726.559665][ T253] __sys_sendmsg+0xcd/0x170 [ 6726.559665][ T253] do_syscall_64+0xc6/0x1e0 [ 6726.559665][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6726.559665][ T253] [ 6736.802299][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6736.802807][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6736.802807][ T253] dst_init+0x84/0x4a0 [ 6736.802807][ T253] dst_alloc+0x97/0x150 [ 6736.802807][ T253] ip6_dst_alloc+0x23/0x90 [ 6736.802807][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6736.802807][ T253] ip6_pol_route+0x56f/0x840 [ 6736.802807][ T253] fib6_rule_lookup+0x334/0x630 [ 6736.802807][ T253] ip6_route_output_flags+0x259/0x480 [ 6736.802807][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6736.802807][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6736.802807][ T253] netlink_rcv_skb+0x130/0x360 [ 6736.802807][ T253] netlink_unicast+0x449/0x710 [ 6736.802807][ T253] netlink_sendmsg+0x723/0xbe0 [ 6736.802807][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6736.802807][ T253] ___sys_sendmsg+0xee/0x170 [ 6736.802807][ T253] __sys_sendmsg+0xcd/0x170 [ 6736.802807][ T253] do_syscall_64+0xc6/0x1e0 [ 6736.802807][ T253] [ 6736.805034][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6736.805034][ T253] netdev_get_by_index+0x5e/0x80 [ 6736.805034][ T253] fib6_nh_init+0x3d8/0x1580 [ 6736.805034][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6736.805034][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6736.805034][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6736.805034][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6736.805034][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6736.805034][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6736.805034][ T253] addrconf_dad_begin+0x310/0x670 [ 6736.805034][ T253] addrconf_dad_work+0x10b/0xab0 [ 6736.805034][ T253] process_one_work+0x84d/0x18a0 [ 6736.805034][ T253] worker_thread+0x587/0xd30 [ 6736.805034][ T253] kthread+0x28a/0x350 [ 6736.805034][ T253] ret_from_fork+0x31/0x70 [ 6736.805034][ T253] ret_from_fork_asm+0x1a/0x30 [ 6736.805034][ T253] [ 6736.807182][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6736.807182][ T253] netdev_get_by_index+0x5e/0x80 [ 6736.807182][ T253] fib6_nh_init+0x3d8/0x1580 [ 6736.807182][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6736.807182][ T253] ip6_route_add+0x1c/0x140 [ 6736.807182][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6736.807182][ T253] inet6_addr_add+0x4f8/0xa40 [ 6736.807182][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6736.807182][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6736.807182][ T253] netlink_rcv_skb+0x130/0x360 [ 6736.807182][ T253] netlink_unicast+0x449/0x710 [ 6736.807182][ T253] netlink_sendmsg+0x723/0xbe0 [ 6736.807182][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6736.807182][ T253] ___sys_sendmsg+0xee/0x170 [ 6736.807182][ T253] __sys_sendmsg+0xcd/0x170 [ 6736.807182][ T253] do_syscall_64+0xc6/0x1e0 [ 6736.807182][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6736.807182][ T253] [ 6736.809475][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6736.809475][ T253] netdev_get_by_index+0x5e/0x80 [ 6736.809475][ T253] fib6_nh_init+0x3d8/0x1580 [ 6736.809475][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6736.809475][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6736.809475][ T253] ipv6_add_addr+0x411/0x2000 [ 6736.809475][ T253] inet6_addr_add+0x30e/0xa40 [ 6736.809475][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6736.809475][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6736.809475][ T253] netlink_rcv_skb+0x130/0x360 [ 6736.809475][ T253] netlink_unicast+0x449/0x710 [ 6736.809475][ T253] netlink_sendmsg+0x723/0xbe0 [ 6736.809475][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6736.809475][ T253] ___sys_sendmsg+0xee/0x170 [ 6736.809475][ T253] __sys_sendmsg+0xcd/0x170 [ 6736.809475][ T253] do_syscall_64+0xc6/0x1e0 [ 6736.809475][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6736.809475][ T253] [ 6736.811732][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6736.811732][ T253] netdev_get_by_index+0x5e/0x80 [ 6736.811732][ T253] fib6_nh_init+0x3d8/0x1580 [ 6736.811732][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6736.811732][ T253] ip6_route_add+0x1c/0x140 [ 6736.811732][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6736.811732][ T253] addrconf_add_dev+0xe2/0x170 [ 6736.811732][ T253] inet6_addr_add+0x12f/0xa40 [ 6736.811732][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6736.811732][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6736.811732][ T253] netlink_rcv_skb+0x130/0x360 [ 6736.811732][ T253] netlink_unicast+0x449/0x710 [ 6736.811732][ T253] netlink_sendmsg+0x723/0xbe0 [ 6736.811732][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6736.811732][ T253] ___sys_sendmsg+0xee/0x170 [ 6736.811732][ T253] __sys_sendmsg+0xcd/0x170 [ 6736.811732][ T253] do_syscall_64+0xc6/0x1e0 [ 6736.811732][ T253] [ 6736.813915][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6736.813915][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6736.813915][ T253] ipv6_find_idev+0x102/0x170 [ 6736.813915][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6736.813915][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6736.813915][ T253] netlink_rcv_skb+0x130/0x360 [ 6736.813915][ T253] netlink_unicast+0x449/0x710 [ 6736.813915][ T253] netlink_sendmsg+0x723/0xbe0 [ 6736.813915][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6736.813915][ T253] ___sys_sendmsg+0xee/0x170 [ 6736.813915][ T253] __sys_sendmsg+0xcd/0x170 [ 6736.813915][ T253] do_syscall_64+0xc6/0x1e0 [ 6736.813915][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6736.813915][ T253] [ 6736.815611][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6736.815611][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6736.815611][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6736.815611][ T253] ipv6_find_idev+0x102/0x170 [ 6736.815611][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6736.815611][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6736.815611][ T253] netlink_rcv_skb+0x130/0x360 [ 6736.815611][ T253] netlink_unicast+0x449/0x710 [ 6736.815611][ T253] netlink_sendmsg+0x723/0xbe0 [ 6736.815611][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6736.815611][ T253] ___sys_sendmsg+0xee/0x170 [ 6736.815611][ T253] __sys_sendmsg+0xcd/0x170 [ 6736.815611][ T253] do_syscall_64+0xc6/0x1e0 [ 6736.815611][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6736.815611][ T253] [ 6747.058338][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6747.058823][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6747.058823][ T253] dst_init+0x84/0x4a0 [ 6747.058823][ T253] dst_alloc+0x97/0x150 [ 6747.058823][ T253] ip6_dst_alloc+0x23/0x90 [ 6747.058823][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6747.058823][ T253] ip6_pol_route+0x56f/0x840 [ 6747.058823][ T253] fib6_rule_lookup+0x334/0x630 [ 6747.058823][ T253] ip6_route_output_flags+0x259/0x480 [ 6747.058823][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6747.058823][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6747.058823][ T253] netlink_rcv_skb+0x130/0x360 [ 6747.058823][ T253] netlink_unicast+0x449/0x710 [ 6747.058823][ T253] netlink_sendmsg+0x723/0xbe0 [ 6747.058823][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6747.058823][ T253] ___sys_sendmsg+0xee/0x170 [ 6747.058823][ T253] __sys_sendmsg+0xcd/0x170 [ 6747.058823][ T253] do_syscall_64+0xc6/0x1e0 [ 6747.058823][ T253] [ 6747.061034][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6747.061034][ T253] netdev_get_by_index+0x5e/0x80 [ 6747.061034][ T253] fib6_nh_init+0x3d8/0x1580 [ 6747.061034][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6747.061034][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6747.061034][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6747.061034][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6747.061034][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6747.061034][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6747.061034][ T253] addrconf_dad_begin+0x310/0x670 [ 6747.061034][ T253] addrconf_dad_work+0x10b/0xab0 [ 6747.061034][ T253] process_one_work+0x84d/0x18a0 [ 6747.061034][ T253] worker_thread+0x587/0xd30 [ 6747.061034][ T253] kthread+0x28a/0x350 [ 6747.061034][ T253] ret_from_fork+0x31/0x70 [ 6747.061034][ T253] ret_from_fork_asm+0x1a/0x30 [ 6747.061034][ T253] [ 6747.063174][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6747.063174][ T253] netdev_get_by_index+0x5e/0x80 [ 6747.063174][ T253] fib6_nh_init+0x3d8/0x1580 [ 6747.063174][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6747.063174][ T253] ip6_route_add+0x1c/0x140 [ 6747.063174][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6747.063174][ T253] inet6_addr_add+0x4f8/0xa40 [ 6747.063174][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6747.063174][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6747.063174][ T253] netlink_rcv_skb+0x130/0x360 [ 6747.063174][ T253] netlink_unicast+0x449/0x710 [ 6747.063174][ T253] netlink_sendmsg+0x723/0xbe0 [ 6747.063174][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6747.063174][ T253] ___sys_sendmsg+0xee/0x170 [ 6747.063174][ T253] __sys_sendmsg+0xcd/0x170 [ 6747.063174][ T253] do_syscall_64+0xc6/0x1e0 [ 6747.063174][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6747.063174][ T253] [ 6747.065445][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6747.065445][ T253] netdev_get_by_index+0x5e/0x80 [ 6747.065445][ T253] fib6_nh_init+0x3d8/0x1580 [ 6747.065445][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6747.065445][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6747.065445][ T253] ipv6_add_addr+0x411/0x2000 [ 6747.065445][ T253] inet6_addr_add+0x30e/0xa40 [ 6747.065445][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6747.065445][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6747.065445][ T253] netlink_rcv_skb+0x130/0x360 [ 6747.065445][ T253] netlink_unicast+0x449/0x710 [ 6747.065445][ T253] netlink_sendmsg+0x723/0xbe0 [ 6747.065445][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6747.065445][ T253] ___sys_sendmsg+0xee/0x170 [ 6747.065445][ T253] __sys_sendmsg+0xcd/0x170 [ 6747.065445][ T253] do_syscall_64+0xc6/0x1e0 [ 6747.065445][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6747.065445][ T253] [ 6747.067698][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6747.067698][ T253] netdev_get_by_index+0x5e/0x80 [ 6747.067698][ T253] fib6_nh_init+0x3d8/0x1580 [ 6747.067698][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6747.067698][ T253] ip6_route_add+0x1c/0x140 [ 6747.067698][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6747.067698][ T253] addrconf_add_dev+0xe2/0x170 [ 6747.067698][ T253] inet6_addr_add+0x12f/0xa40 [ 6747.067698][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6747.067698][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6747.067698][ T253] netlink_rcv_skb+0x130/0x360 [ 6747.067698][ T253] netlink_unicast+0x449/0x710 [ 6747.067698][ T253] netlink_sendmsg+0x723/0xbe0 [ 6747.067698][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6747.067698][ T253] ___sys_sendmsg+0xee/0x170 [ 6747.067698][ T253] __sys_sendmsg+0xcd/0x170 [ 6747.067698][ T253] do_syscall_64+0xc6/0x1e0 [ 6747.067698][ T253] [ 6747.069937][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6747.069937][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6747.069937][ T253] ipv6_find_idev+0x102/0x170 [ 6747.069937][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6747.069937][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6747.069937][ T253] netlink_rcv_skb+0x130/0x360 [ 6747.069937][ T253] netlink_unicast+0x449/0x710 [ 6747.069937][ T253] netlink_sendmsg+0x723/0xbe0 [ 6747.069937][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6747.069937][ T253] ___sys_sendmsg+0xee/0x170 [ 6747.069937][ T253] __sys_sendmsg+0xcd/0x170 [ 6747.069937][ T253] do_syscall_64+0xc6/0x1e0 [ 6747.069937][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6747.069937][ T253] [ 6747.071681][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6747.071681][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6747.071681][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6747.071681][ T253] ipv6_find_idev+0x102/0x170 [ 6747.071681][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6747.071681][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6747.071681][ T253] netlink_rcv_skb+0x130/0x360 [ 6747.071681][ T253] netlink_unicast+0x449/0x710 [ 6747.071681][ T253] netlink_sendmsg+0x723/0xbe0 [ 6747.071681][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6747.071681][ T253] ___sys_sendmsg+0xee/0x170 [ 6747.071681][ T253] __sys_sendmsg+0xcd/0x170 [ 6747.071681][ T253] do_syscall_64+0xc6/0x1e0 [ 6747.071681][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6747.071681][ T253] [ 6757.314328][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6757.314816][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6757.314816][ T253] dst_init+0x84/0x4a0 [ 6757.314816][ T253] dst_alloc+0x97/0x150 [ 6757.314816][ T253] ip6_dst_alloc+0x23/0x90 [ 6757.314816][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6757.314816][ T253] ip6_pol_route+0x56f/0x840 [ 6757.314816][ T253] fib6_rule_lookup+0x334/0x630 [ 6757.314816][ T253] ip6_route_output_flags+0x259/0x480 [ 6757.314816][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6757.314816][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6757.314816][ T253] netlink_rcv_skb+0x130/0x360 [ 6757.314816][ T253] netlink_unicast+0x449/0x710 [ 6757.314816][ T253] netlink_sendmsg+0x723/0xbe0 [ 6757.314816][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6757.314816][ T253] ___sys_sendmsg+0xee/0x170 [ 6757.314816][ T253] __sys_sendmsg+0xcd/0x170 [ 6757.314816][ T253] do_syscall_64+0xc6/0x1e0 [ 6757.314816][ T253] [ 6757.317040][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6757.317040][ T253] netdev_get_by_index+0x5e/0x80 [ 6757.317040][ T253] fib6_nh_init+0x3d8/0x1580 [ 6757.317040][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6757.317040][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6757.317040][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6757.317040][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6757.317040][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6757.317040][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6757.317040][ T253] addrconf_dad_begin+0x310/0x670 [ 6757.317040][ T253] addrconf_dad_work+0x10b/0xab0 [ 6757.317040][ T253] process_one_work+0x84d/0x18a0 [ 6757.317040][ T253] worker_thread+0x587/0xd30 [ 6757.317040][ T253] kthread+0x28a/0x350 [ 6757.317040][ T253] ret_from_fork+0x31/0x70 [ 6757.317040][ T253] ret_from_fork_asm+0x1a/0x30 [ 6757.317040][ T253] [ 6757.319271][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6757.319271][ T253] netdev_get_by_index+0x5e/0x80 [ 6757.319271][ T253] fib6_nh_init+0x3d8/0x1580 [ 6757.319271][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6757.319271][ T253] ip6_route_add+0x1c/0x140 [ 6757.319271][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6757.319271][ T253] inet6_addr_add+0x4f8/0xa40 [ 6757.319271][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6757.319271][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6757.319271][ T253] netlink_rcv_skb+0x130/0x360 [ 6757.319271][ T253] netlink_unicast+0x449/0x710 [ 6757.319271][ T253] netlink_sendmsg+0x723/0xbe0 [ 6757.319271][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6757.319271][ T253] ___sys_sendmsg+0xee/0x170 [ 6757.319271][ T253] __sys_sendmsg+0xcd/0x170 [ 6757.319271][ T253] do_syscall_64+0xc6/0x1e0 [ 6757.319271][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6757.319271][ T253] [ 6757.321544][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6757.321544][ T253] netdev_get_by_index+0x5e/0x80 [ 6757.321544][ T253] fib6_nh_init+0x3d8/0x1580 [ 6757.321544][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6757.321544][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6757.321544][ T253] ipv6_add_addr+0x411/0x2000 [ 6757.321544][ T253] inet6_addr_add+0x30e/0xa40 [ 6757.321544][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6757.321544][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6757.321544][ T253] netlink_rcv_skb+0x130/0x360 [ 6757.321544][ T253] netlink_unicast+0x449/0x710 [ 6757.321544][ T253] netlink_sendmsg+0x723/0xbe0 [ 6757.321544][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6757.321544][ T253] ___sys_sendmsg+0xee/0x170 [ 6757.321544][ T253] __sys_sendmsg+0xcd/0x170 [ 6757.321544][ T253] do_syscall_64+0xc6/0x1e0 [ 6757.321544][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6757.321544][ T253] [ 6757.323854][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6757.323854][ T253] netdev_get_by_index+0x5e/0x80 [ 6757.323854][ T253] fib6_nh_init+0x3d8/0x1580 [ 6757.323854][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6757.323854][ T253] ip6_route_add+0x1c/0x140 [ 6757.323854][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6757.323854][ T253] addrconf_add_dev+0xe2/0x170 [ 6757.323854][ T253] inet6_addr_add+0x12f/0xa40 [ 6757.323854][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6757.323854][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6757.323854][ T253] netlink_rcv_skb+0x130/0x360 [ 6757.323854][ T253] netlink_unicast+0x449/0x710 [ 6757.323854][ T253] netlink_sendmsg+0x723/0xbe0 [ 6757.323854][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6757.323854][ T253] ___sys_sendmsg+0xee/0x170 [ 6757.323854][ T253] __sys_sendmsg+0xcd/0x170 [ 6757.323854][ T253] do_syscall_64+0xc6/0x1e0 [ 6757.323854][ T253] [ 6757.326101][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6757.326101][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6757.326101][ T253] ipv6_find_idev+0x102/0x170 [ 6757.326101][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6757.326101][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6757.326101][ T253] netlink_rcv_skb+0x130/0x360 [ 6757.326101][ T253] netlink_unicast+0x449/0x710 [ 6757.326101][ T253] netlink_sendmsg+0x723/0xbe0 [ 6757.326101][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6757.326101][ T253] ___sys_sendmsg+0xee/0x170 [ 6757.326101][ T253] __sys_sendmsg+0xcd/0x170 [ 6757.326101][ T253] do_syscall_64+0xc6/0x1e0 [ 6757.326101][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6757.326101][ T253] [ 6757.327854][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6757.327854][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6757.327854][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6757.327854][ T253] ipv6_find_idev+0x102/0x170 [ 6757.327854][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6757.327854][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6757.327854][ T253] netlink_rcv_skb+0x130/0x360 [ 6757.327854][ T253] netlink_unicast+0x449/0x710 [ 6757.327854][ T253] netlink_sendmsg+0x723/0xbe0 [ 6757.327854][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6757.327854][ T253] ___sys_sendmsg+0xee/0x170 [ 6757.327854][ T253] __sys_sendmsg+0xcd/0x170 [ 6757.327854][ T253] do_syscall_64+0xc6/0x1e0 [ 6757.327854][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6757.327854][ T253] [ 6767.570336][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6767.570837][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6767.570837][ T253] dst_init+0x84/0x4a0 [ 6767.570837][ T253] dst_alloc+0x97/0x150 [ 6767.570837][ T253] ip6_dst_alloc+0x23/0x90 [ 6767.570837][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6767.570837][ T253] ip6_pol_route+0x56f/0x840 [ 6767.570837][ T253] fib6_rule_lookup+0x334/0x630 [ 6767.570837][ T253] ip6_route_output_flags+0x259/0x480 [ 6767.570837][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6767.570837][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6767.570837][ T253] netlink_rcv_skb+0x130/0x360 [ 6767.570837][ T253] netlink_unicast+0x449/0x710 [ 6767.570837][ T253] netlink_sendmsg+0x723/0xbe0 [ 6767.570837][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6767.570837][ T253] ___sys_sendmsg+0xee/0x170 [ 6767.570837][ T253] __sys_sendmsg+0xcd/0x170 [ 6767.570837][ T253] do_syscall_64+0xc6/0x1e0 [ 6767.570837][ T253] [ 6767.573019][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6767.573019][ T253] netdev_get_by_index+0x5e/0x80 [ 6767.573019][ T253] fib6_nh_init+0x3d8/0x1580 [ 6767.573019][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6767.573019][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6767.573019][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6767.573019][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6767.573019][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6767.573019][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6767.573019][ T253] addrconf_dad_begin+0x310/0x670 [ 6767.573019][ T253] addrconf_dad_work+0x10b/0xab0 [ 6767.573019][ T253] process_one_work+0x84d/0x18a0 [ 6767.573019][ T253] worker_thread+0x587/0xd30 [ 6767.573019][ T253] kthread+0x28a/0x350 [ 6767.573019][ T253] ret_from_fork+0x31/0x70 [ 6767.573019][ T253] ret_from_fork_asm+0x1a/0x30 [ 6767.573019][ T253] [ 6767.575145][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6767.575145][ T253] netdev_get_by_index+0x5e/0x80 [ 6767.575145][ T253] fib6_nh_init+0x3d8/0x1580 [ 6767.575145][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6767.575145][ T253] ip6_route_add+0x1c/0x140 [ 6767.575145][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6767.575145][ T253] inet6_addr_add+0x4f8/0xa40 [ 6767.575145][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6767.575145][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6767.575145][ T253] netlink_rcv_skb+0x130/0x360 [ 6767.575145][ T253] netlink_unicast+0x449/0x710 [ 6767.575145][ T253] netlink_sendmsg+0x723/0xbe0 [ 6767.575145][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6767.575145][ T253] ___sys_sendmsg+0xee/0x170 [ 6767.575145][ T253] __sys_sendmsg+0xcd/0x170 [ 6767.575145][ T253] do_syscall_64+0xc6/0x1e0 [ 6767.575145][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6767.575145][ T253] [ 6767.577373][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6767.577373][ T253] netdev_get_by_index+0x5e/0x80 [ 6767.577373][ T253] fib6_nh_init+0x3d8/0x1580 [ 6767.577373][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6767.577373][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6767.577373][ T253] ipv6_add_addr+0x411/0x2000 [ 6767.577373][ T253] inet6_addr_add+0x30e/0xa40 [ 6767.577373][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6767.577373][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6767.577373][ T253] netlink_rcv_skb+0x130/0x360 [ 6767.577373][ T253] netlink_unicast+0x449/0x710 [ 6767.577373][ T253] netlink_sendmsg+0x723/0xbe0 [ 6767.577373][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6767.577373][ T253] ___sys_sendmsg+0xee/0x170 [ 6767.577373][ T253] __sys_sendmsg+0xcd/0x170 [ 6767.577373][ T253] do_syscall_64+0xc6/0x1e0 [ 6767.577373][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6767.577373][ T253] [ 6767.579592][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6767.579592][ T253] netdev_get_by_index+0x5e/0x80 [ 6767.579592][ T253] fib6_nh_init+0x3d8/0x1580 [ 6767.579592][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6767.579592][ T253] ip6_route_add+0x1c/0x140 [ 6767.579592][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6767.579592][ T253] addrconf_add_dev+0xe2/0x170 [ 6767.579592][ T253] inet6_addr_add+0x12f/0xa40 [ 6767.579592][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6767.579592][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6767.579592][ T253] netlink_rcv_skb+0x130/0x360 [ 6767.579592][ T253] netlink_unicast+0x449/0x710 [ 6767.579592][ T253] netlink_sendmsg+0x723/0xbe0 [ 6767.579592][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6767.579592][ T253] ___sys_sendmsg+0xee/0x170 [ 6767.579592][ T253] __sys_sendmsg+0xcd/0x170 [ 6767.579592][ T253] do_syscall_64+0xc6/0x1e0 [ 6767.579592][ T253] [ 6767.581750][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6767.581750][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6767.581750][ T253] ipv6_find_idev+0x102/0x170 [ 6767.581750][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6767.581750][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6767.581750][ T253] netlink_rcv_skb+0x130/0x360 [ 6767.581750][ T253] netlink_unicast+0x449/0x710 [ 6767.581750][ T253] netlink_sendmsg+0x723/0xbe0 [ 6767.581750][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6767.581750][ T253] ___sys_sendmsg+0xee/0x170 [ 6767.581750][ T253] __sys_sendmsg+0xcd/0x170 [ 6767.581750][ T253] do_syscall_64+0xc6/0x1e0 [ 6767.581750][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6767.581750][ T253] [ 6767.583438][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6767.583438][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6767.583438][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6767.583438][ T253] ipv6_find_idev+0x102/0x170 [ 6767.583438][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6767.583438][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6767.583438][ T253] netlink_rcv_skb+0x130/0x360 [ 6767.583438][ T253] netlink_unicast+0x449/0x710 [ 6767.583438][ T253] netlink_sendmsg+0x723/0xbe0 [ 6767.583438][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6767.583438][ T253] ___sys_sendmsg+0xee/0x170 [ 6767.583438][ T253] __sys_sendmsg+0xcd/0x170 [ 6767.583438][ T253] do_syscall_64+0xc6/0x1e0 [ 6767.583438][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6767.583438][ T253] [ 6777.826300][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6777.826793][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6777.826793][ T253] dst_init+0x84/0x4a0 [ 6777.826793][ T253] dst_alloc+0x97/0x150 [ 6777.826793][ T253] ip6_dst_alloc+0x23/0x90 [ 6777.826793][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6777.826793][ T253] ip6_pol_route+0x56f/0x840 [ 6777.826793][ T253] fib6_rule_lookup+0x334/0x630 [ 6777.826793][ T253] ip6_route_output_flags+0x259/0x480 [ 6777.826793][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6777.826793][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6777.826793][ T253] netlink_rcv_skb+0x130/0x360 [ 6777.826793][ T253] netlink_unicast+0x449/0x710 [ 6777.826793][ T253] netlink_sendmsg+0x723/0xbe0 [ 6777.826793][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6777.826793][ T253] ___sys_sendmsg+0xee/0x170 [ 6777.826793][ T253] __sys_sendmsg+0xcd/0x170 [ 6777.826793][ T253] do_syscall_64+0xc6/0x1e0 [ 6777.826793][ T253] [ 6777.829033][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6777.829033][ T253] netdev_get_by_index+0x5e/0x80 [ 6777.829033][ T253] fib6_nh_init+0x3d8/0x1580 [ 6777.829033][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6777.829033][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6777.829033][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6777.829033][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6777.829033][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6777.829033][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6777.829033][ T253] addrconf_dad_begin+0x310/0x670 [ 6777.829033][ T253] addrconf_dad_work+0x10b/0xab0 [ 6777.829033][ T253] process_one_work+0x84d/0x18a0 [ 6777.829033][ T253] worker_thread+0x587/0xd30 [ 6777.829033][ T253] kthread+0x28a/0x350 [ 6777.829033][ T253] ret_from_fork+0x31/0x70 [ 6777.829033][ T253] ret_from_fork_asm+0x1a/0x30 [ 6777.829033][ T253] [ 6777.831212][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6777.831212][ T253] netdev_get_by_index+0x5e/0x80 [ 6777.831212][ T253] fib6_nh_init+0x3d8/0x1580 [ 6777.831212][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6777.831212][ T253] ip6_route_add+0x1c/0x140 [ 6777.831212][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6777.831212][ T253] inet6_addr_add+0x4f8/0xa40 [ 6777.831212][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6777.831212][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6777.831212][ T253] netlink_rcv_skb+0x130/0x360 [ 6777.831212][ T253] netlink_unicast+0x449/0x710 [ 6777.831212][ T253] netlink_sendmsg+0x723/0xbe0 [ 6777.831212][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6777.831212][ T253] ___sys_sendmsg+0xee/0x170 [ 6777.831212][ T253] __sys_sendmsg+0xcd/0x170 [ 6777.831212][ T253] do_syscall_64+0xc6/0x1e0 [ 6777.831212][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6777.831212][ T253] [ 6777.833504][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6777.833504][ T253] netdev_get_by_index+0x5e/0x80 [ 6777.833504][ T253] fib6_nh_init+0x3d8/0x1580 [ 6777.833504][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6777.833504][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6777.833504][ T253] ipv6_add_addr+0x411/0x2000 [ 6777.833504][ T253] inet6_addr_add+0x30e/0xa40 [ 6777.833504][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6777.833504][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6777.833504][ T253] netlink_rcv_skb+0x130/0x360 [ 6777.833504][ T253] netlink_unicast+0x449/0x710 [ 6777.833504][ T253] netlink_sendmsg+0x723/0xbe0 [ 6777.833504][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6777.833504][ T253] ___sys_sendmsg+0xee/0x170 [ 6777.833504][ T253] __sys_sendmsg+0xcd/0x170 [ 6777.833504][ T253] do_syscall_64+0xc6/0x1e0 [ 6777.833504][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6777.833504][ T253] [ 6777.835769][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6777.835769][ T253] netdev_get_by_index+0x5e/0x80 [ 6777.835769][ T253] fib6_nh_init+0x3d8/0x1580 [ 6777.835769][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6777.835769][ T253] ip6_route_add+0x1c/0x140 [ 6777.835769][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6777.835769][ T253] addrconf_add_dev+0xe2/0x170 [ 6777.835769][ T253] inet6_addr_add+0x12f/0xa40 [ 6777.835769][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6777.835769][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6777.835769][ T253] netlink_rcv_skb+0x130/0x360 [ 6777.835769][ T253] netlink_unicast+0x449/0x710 [ 6777.835769][ T253] netlink_sendmsg+0x723/0xbe0 [ 6777.835769][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6777.835769][ T253] ___sys_sendmsg+0xee/0x170 [ 6777.835769][ T253] __sys_sendmsg+0xcd/0x170 [ 6777.835769][ T253] do_syscall_64+0xc6/0x1e0 [ 6777.835769][ T253] [ 6777.837974][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6777.837974][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6777.837974][ T253] ipv6_find_idev+0x102/0x170 [ 6777.837974][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6777.837974][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6777.837974][ T253] netlink_rcv_skb+0x130/0x360 [ 6777.837974][ T253] netlink_unicast+0x449/0x710 [ 6777.837974][ T253] netlink_sendmsg+0x723/0xbe0 [ 6777.837974][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6777.837974][ T253] ___sys_sendmsg+0xee/0x170 [ 6777.837974][ T253] __sys_sendmsg+0xcd/0x170 [ 6777.837974][ T253] do_syscall_64+0xc6/0x1e0 [ 6777.837974][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6777.837974][ T253] [ 6777.840261][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6777.840261][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6777.840261][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6777.840261][ T253] ipv6_find_idev+0x102/0x170 [ 6777.840261][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6777.840261][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6777.840261][ T253] netlink_rcv_skb+0x130/0x360 [ 6777.840261][ T253] netlink_unicast+0x449/0x710 [ 6777.840261][ T253] netlink_sendmsg+0x723/0xbe0 [ 6777.840261][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6777.840261][ T253] ___sys_sendmsg+0xee/0x170 [ 6777.840261][ T253] __sys_sendmsg+0xcd/0x170 [ 6777.840261][ T253] do_syscall_64+0xc6/0x1e0 [ 6777.840261][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6777.840261][ T253] [ 6787.874318][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6787.874788][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6787.874788][ T253] dst_init+0x84/0x4a0 [ 6787.874788][ T253] dst_alloc+0x97/0x150 [ 6787.874788][ T253] ip6_dst_alloc+0x23/0x90 [ 6787.874788][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6787.874788][ T253] ip6_pol_route+0x56f/0x840 [ 6787.874788][ T253] fib6_rule_lookup+0x334/0x630 [ 6787.874788][ T253] ip6_route_output_flags+0x259/0x480 [ 6787.874788][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6787.874788][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6787.874788][ T253] netlink_rcv_skb+0x130/0x360 [ 6787.874788][ T253] netlink_unicast+0x449/0x710 [ 6787.874788][ T253] netlink_sendmsg+0x723/0xbe0 [ 6787.874788][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6787.874788][ T253] ___sys_sendmsg+0xee/0x170 [ 6787.874788][ T253] __sys_sendmsg+0xcd/0x170 [ 6787.874788][ T253] do_syscall_64+0xc6/0x1e0 [ 6787.874788][ T253] [ 6787.877000][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6787.877000][ T253] netdev_get_by_index+0x5e/0x80 [ 6787.877000][ T253] fib6_nh_init+0x3d8/0x1580 [ 6787.877000][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6787.877000][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6787.877000][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6787.877000][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6787.877000][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6787.877000][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6787.877000][ T253] addrconf_dad_begin+0x310/0x670 [ 6787.877000][ T253] addrconf_dad_work+0x10b/0xab0 [ 6787.877000][ T253] process_one_work+0x84d/0x18a0 [ 6787.877000][ T253] worker_thread+0x587/0xd30 [ 6787.877000][ T253] kthread+0x28a/0x350 [ 6787.877000][ T253] ret_from_fork+0x31/0x70 [ 6787.877000][ T253] ret_from_fork_asm+0x1a/0x30 [ 6787.877000][ T253] [ 6787.879204][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6787.879204][ T253] netdev_get_by_index+0x5e/0x80 [ 6787.879204][ T253] fib6_nh_init+0x3d8/0x1580 [ 6787.879204][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6787.879204][ T253] ip6_route_add+0x1c/0x140 [ 6787.879204][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6787.879204][ T253] inet6_addr_add+0x4f8/0xa40 [ 6787.879204][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6787.879204][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6787.879204][ T253] netlink_rcv_skb+0x130/0x360 [ 6787.879204][ T253] netlink_unicast+0x449/0x710 [ 6787.879204][ T253] netlink_sendmsg+0x723/0xbe0 [ 6787.879204][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6787.879204][ T253] ___sys_sendmsg+0xee/0x170 [ 6787.879204][ T253] __sys_sendmsg+0xcd/0x170 [ 6787.879204][ T253] do_syscall_64+0xc6/0x1e0 [ 6787.879204][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6787.879204][ T253] [ 6787.881434][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6787.881434][ T253] netdev_get_by_index+0x5e/0x80 [ 6787.881434][ T253] fib6_nh_init+0x3d8/0x1580 [ 6787.881434][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6787.881434][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6787.881434][ T253] ipv6_add_addr+0x411/0x2000 [ 6787.881434][ T253] inet6_addr_add+0x30e/0xa40 [ 6787.881434][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6787.881434][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6787.881434][ T253] netlink_rcv_skb+0x130/0x360 [ 6787.881434][ T253] netlink_unicast+0x449/0x710 [ 6787.881434][ T253] netlink_sendmsg+0x723/0xbe0 [ 6787.881434][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6787.881434][ T253] ___sys_sendmsg+0xee/0x170 [ 6787.881434][ T253] __sys_sendmsg+0xcd/0x170 [ 6787.881434][ T253] do_syscall_64+0xc6/0x1e0 [ 6787.881434][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6787.881434][ T253] [ 6787.883613][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6787.883613][ T253] netdev_get_by_index+0x5e/0x80 [ 6787.883613][ T253] fib6_nh_init+0x3d8/0x1580 [ 6787.883613][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6787.883613][ T253] ip6_route_add+0x1c/0x140 [ 6787.883613][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6787.883613][ T253] addrconf_add_dev+0xe2/0x170 [ 6787.883613][ T253] inet6_addr_add+0x12f/0xa40 [ 6787.883613][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6787.883613][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6787.883613][ T253] netlink_rcv_skb+0x130/0x360 [ 6787.883613][ T253] netlink_unicast+0x449/0x710 [ 6787.883613][ T253] netlink_sendmsg+0x723/0xbe0 [ 6787.883613][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6787.883613][ T253] ___sys_sendmsg+0xee/0x170 [ 6787.883613][ T253] __sys_sendmsg+0xcd/0x170 [ 6787.883613][ T253] do_syscall_64+0xc6/0x1e0 [ 6787.883613][ T253] [ 6787.885759][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6787.885759][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6787.885759][ T253] ipv6_find_idev+0x102/0x170 [ 6787.885759][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6787.885759][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6787.885759][ T253] netlink_rcv_skb+0x130/0x360 [ 6787.885759][ T253] netlink_unicast+0x449/0x710 [ 6787.885759][ T253] netlink_sendmsg+0x723/0xbe0 [ 6787.885759][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6787.885759][ T253] ___sys_sendmsg+0xee/0x170 [ 6787.885759][ T253] __sys_sendmsg+0xcd/0x170 [ 6787.885759][ T253] do_syscall_64+0xc6/0x1e0 [ 6787.885759][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6787.885759][ T253] [ 6787.887500][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6787.887500][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6787.887500][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6787.887500][ T253] ipv6_find_idev+0x102/0x170 [ 6787.887500][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6787.887500][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6787.887500][ T253] netlink_rcv_skb+0x130/0x360 [ 6787.887500][ T253] netlink_unicast+0x449/0x710 [ 6787.887500][ T253] netlink_sendmsg+0x723/0xbe0 [ 6787.887500][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6787.887500][ T253] ___sys_sendmsg+0xee/0x170 [ 6787.887500][ T253] __sys_sendmsg+0xcd/0x170 [ 6787.887500][ T253] do_syscall_64+0xc6/0x1e0 [ 6787.887500][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6787.887500][ T253] [ 6798.130328][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6798.130790][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6798.130790][ T253] dst_init+0x84/0x4a0 [ 6798.130790][ T253] dst_alloc+0x97/0x150 [ 6798.130790][ T253] ip6_dst_alloc+0x23/0x90 [ 6798.130790][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6798.130790][ T253] ip6_pol_route+0x56f/0x840 [ 6798.130790][ T253] fib6_rule_lookup+0x334/0x630 [ 6798.130790][ T253] ip6_route_output_flags+0x259/0x480 [ 6798.130790][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6798.130790][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6798.130790][ T253] netlink_rcv_skb+0x130/0x360 [ 6798.130790][ T253] netlink_unicast+0x449/0x710 [ 6798.130790][ T253] netlink_sendmsg+0x723/0xbe0 [ 6798.130790][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6798.130790][ T253] ___sys_sendmsg+0xee/0x170 [ 6798.130790][ T253] __sys_sendmsg+0xcd/0x170 [ 6798.130790][ T253] do_syscall_64+0xc6/0x1e0 [ 6798.130790][ T253] [ 6798.132930][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6798.132930][ T253] netdev_get_by_index+0x5e/0x80 [ 6798.132930][ T253] fib6_nh_init+0x3d8/0x1580 [ 6798.132930][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6798.132930][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6798.132930][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6798.132930][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6798.132930][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6798.132930][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6798.132930][ T253] addrconf_dad_begin+0x310/0x670 [ 6798.132930][ T253] addrconf_dad_work+0x10b/0xab0 [ 6798.132930][ T253] process_one_work+0x84d/0x18a0 [ 6798.132930][ T253] worker_thread+0x587/0xd30 [ 6798.132930][ T253] kthread+0x28a/0x350 [ 6798.132930][ T253] ret_from_fork+0x31/0x70 [ 6798.132930][ T253] ret_from_fork_asm+0x1a/0x30 [ 6798.132930][ T253] [ 6798.135042][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6798.135042][ T253] netdev_get_by_index+0x5e/0x80 [ 6798.135042][ T253] fib6_nh_init+0x3d8/0x1580 [ 6798.135042][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6798.135042][ T253] ip6_route_add+0x1c/0x140 [ 6798.135042][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6798.135042][ T253] inet6_addr_add+0x4f8/0xa40 [ 6798.135042][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6798.135042][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6798.135042][ T253] netlink_rcv_skb+0x130/0x360 [ 6798.135042][ T253] netlink_unicast+0x449/0x710 [ 6798.135042][ T253] netlink_sendmsg+0x723/0xbe0 [ 6798.135042][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6798.135042][ T253] ___sys_sendmsg+0xee/0x170 [ 6798.135042][ T253] __sys_sendmsg+0xcd/0x170 [ 6798.135042][ T253] do_syscall_64+0xc6/0x1e0 [ 6798.135042][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6798.135042][ T253] [ 6798.137269][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6798.137269][ T253] netdev_get_by_index+0x5e/0x80 [ 6798.137269][ T253] fib6_nh_init+0x3d8/0x1580 [ 6798.137269][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6798.137269][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6798.137269][ T253] ipv6_add_addr+0x411/0x2000 [ 6798.137269][ T253] inet6_addr_add+0x30e/0xa40 [ 6798.137269][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6798.137269][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6798.137269][ T253] netlink_rcv_skb+0x130/0x360 [ 6798.137269][ T253] netlink_unicast+0x449/0x710 [ 6798.137269][ T253] netlink_sendmsg+0x723/0xbe0 [ 6798.137269][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6798.137269][ T253] ___sys_sendmsg+0xee/0x170 [ 6798.137269][ T253] __sys_sendmsg+0xcd/0x170 [ 6798.137269][ T253] do_syscall_64+0xc6/0x1e0 [ 6798.137269][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6798.137269][ T253] [ 6798.139516][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6798.139516][ T253] netdev_get_by_index+0x5e/0x80 [ 6798.139516][ T253] fib6_nh_init+0x3d8/0x1580 [ 6798.139516][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6798.139516][ T253] ip6_route_add+0x1c/0x140 [ 6798.139516][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6798.139516][ T253] addrconf_add_dev+0xe2/0x170 [ 6798.139516][ T253] inet6_addr_add+0x12f/0xa40 [ 6798.139516][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6798.139516][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6798.139516][ T253] netlink_rcv_skb+0x130/0x360 [ 6798.139516][ T253] netlink_unicast+0x449/0x710 [ 6798.139516][ T253] netlink_sendmsg+0x723/0xbe0 [ 6798.139516][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6798.139516][ T253] ___sys_sendmsg+0xee/0x170 [ 6798.139516][ T253] __sys_sendmsg+0xcd/0x170 [ 6798.139516][ T253] do_syscall_64+0xc6/0x1e0 [ 6798.139516][ T253] [ 6798.141719][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6798.141719][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6798.141719][ T253] ipv6_find_idev+0x102/0x170 [ 6798.141719][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6798.141719][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6798.141719][ T253] netlink_rcv_skb+0x130/0x360 [ 6798.141719][ T253] netlink_unicast+0x449/0x710 [ 6798.141719][ T253] netlink_sendmsg+0x723/0xbe0 [ 6798.141719][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6798.141719][ T253] ___sys_sendmsg+0xee/0x170 [ 6798.141719][ T253] __sys_sendmsg+0xcd/0x170 [ 6798.141719][ T253] do_syscall_64+0xc6/0x1e0 [ 6798.141719][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6798.141719][ T253] [ 6798.143443][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6798.143443][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6798.143443][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6798.143443][ T253] ipv6_find_idev+0x102/0x170 [ 6798.143443][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6798.143443][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6798.143443][ T253] netlink_rcv_skb+0x130/0x360 [ 6798.143443][ T253] netlink_unicast+0x449/0x710 [ 6798.143443][ T253] netlink_sendmsg+0x723/0xbe0 [ 6798.143443][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6798.143443][ T253] ___sys_sendmsg+0xee/0x170 [ 6798.143443][ T253] __sys_sendmsg+0xcd/0x170 [ 6798.143443][ T253] do_syscall_64+0xc6/0x1e0 [ 6798.143443][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6798.143443][ T253] [ 6808.386297][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6808.386781][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6808.386781][ T253] dst_init+0x84/0x4a0 [ 6808.386781][ T253] dst_alloc+0x97/0x150 [ 6808.386781][ T253] ip6_dst_alloc+0x23/0x90 [ 6808.386781][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6808.386781][ T253] ip6_pol_route+0x56f/0x840 [ 6808.386781][ T253] fib6_rule_lookup+0x334/0x630 [ 6808.386781][ T253] ip6_route_output_flags+0x259/0x480 [ 6808.386781][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6808.386781][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6808.386781][ T253] netlink_rcv_skb+0x130/0x360 [ 6808.386781][ T253] netlink_unicast+0x449/0x710 [ 6808.386781][ T253] netlink_sendmsg+0x723/0xbe0 [ 6808.386781][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6808.386781][ T253] ___sys_sendmsg+0xee/0x170 [ 6808.386781][ T253] __sys_sendmsg+0xcd/0x170 [ 6808.386781][ T253] do_syscall_64+0xc6/0x1e0 [ 6808.386781][ T253] [ 6808.388990][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6808.388990][ T253] netdev_get_by_index+0x5e/0x80 [ 6808.388990][ T253] fib6_nh_init+0x3d8/0x1580 [ 6808.388990][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6808.388990][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6808.388990][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6808.388990][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6808.388990][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6808.388990][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6808.388990][ T253] addrconf_dad_begin+0x310/0x670 [ 6808.388990][ T253] addrconf_dad_work+0x10b/0xab0 [ 6808.388990][ T253] process_one_work+0x84d/0x18a0 [ 6808.388990][ T253] worker_thread+0x587/0xd30 [ 6808.388990][ T253] kthread+0x28a/0x350 [ 6808.388990][ T253] ret_from_fork+0x31/0x70 [ 6808.388990][ T253] ret_from_fork_asm+0x1a/0x30 [ 6808.388990][ T253] [ 6808.391160][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6808.391160][ T253] netdev_get_by_index+0x5e/0x80 [ 6808.391160][ T253] fib6_nh_init+0x3d8/0x1580 [ 6808.391160][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6808.391160][ T253] ip6_route_add+0x1c/0x140 [ 6808.391160][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6808.391160][ T253] inet6_addr_add+0x4f8/0xa40 [ 6808.391160][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6808.391160][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6808.391160][ T253] netlink_rcv_skb+0x130/0x360 [ 6808.391160][ T253] netlink_unicast+0x449/0x710 [ 6808.391160][ T253] netlink_sendmsg+0x723/0xbe0 [ 6808.391160][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6808.391160][ T253] ___sys_sendmsg+0xee/0x170 [ 6808.391160][ T253] __sys_sendmsg+0xcd/0x170 [ 6808.391160][ T253] do_syscall_64+0xc6/0x1e0 [ 6808.391160][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6808.391160][ T253] [ 6808.393395][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6808.393395][ T253] netdev_get_by_index+0x5e/0x80 [ 6808.393395][ T253] fib6_nh_init+0x3d8/0x1580 [ 6808.393395][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6808.393395][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6808.393395][ T253] ipv6_add_addr+0x411/0x2000 [ 6808.393395][ T253] inet6_addr_add+0x30e/0xa40 [ 6808.393395][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6808.393395][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6808.393395][ T253] netlink_rcv_skb+0x130/0x360 [ 6808.393395][ T253] netlink_unicast+0x449/0x710 [ 6808.393395][ T253] netlink_sendmsg+0x723/0xbe0 [ 6808.393395][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6808.393395][ T253] ___sys_sendmsg+0xee/0x170 [ 6808.393395][ T253] __sys_sendmsg+0xcd/0x170 [ 6808.393395][ T253] do_syscall_64+0xc6/0x1e0 [ 6808.393395][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6808.393395][ T253] [ 6808.395610][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6808.395610][ T253] netdev_get_by_index+0x5e/0x80 [ 6808.395610][ T253] fib6_nh_init+0x3d8/0x1580 [ 6808.395610][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6808.395610][ T253] ip6_route_add+0x1c/0x140 [ 6808.395610][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6808.395610][ T253] addrconf_add_dev+0xe2/0x170 [ 6808.395610][ T253] inet6_addr_add+0x12f/0xa40 [ 6808.395610][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6808.395610][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6808.395610][ T253] netlink_rcv_skb+0x130/0x360 [ 6808.395610][ T253] netlink_unicast+0x449/0x710 [ 6808.395610][ T253] netlink_sendmsg+0x723/0xbe0 [ 6808.395610][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6808.395610][ T253] ___sys_sendmsg+0xee/0x170 [ 6808.395610][ T253] __sys_sendmsg+0xcd/0x170 [ 6808.395610][ T253] do_syscall_64+0xc6/0x1e0 [ 6808.395610][ T253] [ 6808.397773][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6808.397773][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6808.397773][ T253] ipv6_find_idev+0x102/0x170 [ 6808.397773][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6808.397773][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6808.397773][ T253] netlink_rcv_skb+0x130/0x360 [ 6808.397773][ T253] netlink_unicast+0x449/0x710 [ 6808.397773][ T253] netlink_sendmsg+0x723/0xbe0 [ 6808.397773][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6808.397773][ T253] ___sys_sendmsg+0xee/0x170 [ 6808.397773][ T253] __sys_sendmsg+0xcd/0x170 [ 6808.397773][ T253] do_syscall_64+0xc6/0x1e0 [ 6808.397773][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6808.397773][ T253] [ 6808.399522][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6808.399522][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6808.399522][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6808.399522][ T253] ipv6_find_idev+0x102/0x170 [ 6808.399522][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6808.399522][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6808.399522][ T253] netlink_rcv_skb+0x130/0x360 [ 6808.399522][ T253] netlink_unicast+0x449/0x710 [ 6808.399522][ T253] netlink_sendmsg+0x723/0xbe0 [ 6808.399522][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6808.399522][ T253] ___sys_sendmsg+0xee/0x170 [ 6808.399522][ T253] __sys_sendmsg+0xcd/0x170 [ 6808.399522][ T253] do_syscall_64+0xc6/0x1e0 [ 6808.399522][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6808.399522][ T253] [ 6818.530371][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6818.530849][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6818.530849][ T253] dst_init+0x84/0x4a0 [ 6818.530849][ T253] dst_alloc+0x97/0x150 [ 6818.530849][ T253] ip6_dst_alloc+0x23/0x90 [ 6818.530849][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6818.530849][ T253] ip6_pol_route+0x56f/0x840 [ 6818.530849][ T253] fib6_rule_lookup+0x334/0x630 [ 6818.530849][ T253] ip6_route_output_flags+0x259/0x480 [ 6818.530849][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6818.530849][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6818.530849][ T253] netlink_rcv_skb+0x130/0x360 [ 6818.530849][ T253] netlink_unicast+0x449/0x710 [ 6818.530849][ T253] netlink_sendmsg+0x723/0xbe0 [ 6818.530849][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6818.530849][ T253] ___sys_sendmsg+0xee/0x170 [ 6818.530849][ T253] __sys_sendmsg+0xcd/0x170 [ 6818.530849][ T253] do_syscall_64+0xc6/0x1e0 [ 6818.530849][ T253] [ 6818.533063][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6818.533063][ T253] netdev_get_by_index+0x5e/0x80 [ 6818.533063][ T253] fib6_nh_init+0x3d8/0x1580 [ 6818.533063][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6818.533063][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6818.533063][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6818.533063][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6818.533063][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6818.533063][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6818.533063][ T253] addrconf_dad_begin+0x310/0x670 [ 6818.533063][ T253] addrconf_dad_work+0x10b/0xab0 [ 6818.533063][ T253] process_one_work+0x84d/0x18a0 [ 6818.533063][ T253] worker_thread+0x587/0xd30 [ 6818.533063][ T253] kthread+0x28a/0x350 [ 6818.533063][ T253] ret_from_fork+0x31/0x70 [ 6818.533063][ T253] ret_from_fork_asm+0x1a/0x30 [ 6818.533063][ T253] [ 6818.535222][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6818.535222][ T253] netdev_get_by_index+0x5e/0x80 [ 6818.535222][ T253] fib6_nh_init+0x3d8/0x1580 [ 6818.535222][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6818.535222][ T253] ip6_route_add+0x1c/0x140 [ 6818.535222][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6818.535222][ T253] inet6_addr_add+0x4f8/0xa40 [ 6818.535222][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6818.535222][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6818.535222][ T253] netlink_rcv_skb+0x130/0x360 [ 6818.535222][ T253] netlink_unicast+0x449/0x710 [ 6818.535222][ T253] netlink_sendmsg+0x723/0xbe0 [ 6818.535222][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6818.535222][ T253] ___sys_sendmsg+0xee/0x170 [ 6818.535222][ T253] __sys_sendmsg+0xcd/0x170 [ 6818.535222][ T253] do_syscall_64+0xc6/0x1e0 [ 6818.535222][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6818.535222][ T253] [ 6818.537465][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6818.537465][ T253] netdev_get_by_index+0x5e/0x80 [ 6818.537465][ T253] fib6_nh_init+0x3d8/0x1580 [ 6818.537465][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6818.537465][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6818.537465][ T253] ipv6_add_addr+0x411/0x2000 [ 6818.537465][ T253] inet6_addr_add+0x30e/0xa40 [ 6818.537465][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6818.537465][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6818.537465][ T253] netlink_rcv_skb+0x130/0x360 [ 6818.537465][ T253] netlink_unicast+0x449/0x710 [ 6818.537465][ T253] netlink_sendmsg+0x723/0xbe0 [ 6818.537465][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6818.537465][ T253] ___sys_sendmsg+0xee/0x170 [ 6818.537465][ T253] __sys_sendmsg+0xcd/0x170 [ 6818.537465][ T253] do_syscall_64+0xc6/0x1e0 [ 6818.537465][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6818.537465][ T253] [ 6818.539712][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6818.539712][ T253] netdev_get_by_index+0x5e/0x80 [ 6818.539712][ T253] fib6_nh_init+0x3d8/0x1580 [ 6818.539712][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6818.539712][ T253] ip6_route_add+0x1c/0x140 [ 6818.539712][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6818.539712][ T253] addrconf_add_dev+0xe2/0x170 [ 6818.539712][ T253] inet6_addr_add+0x12f/0xa40 [ 6818.539712][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6818.539712][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6818.539712][ T253] netlink_rcv_skb+0x130/0x360 [ 6818.539712][ T253] netlink_unicast+0x449/0x710 [ 6818.539712][ T253] netlink_sendmsg+0x723/0xbe0 [ 6818.539712][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6818.539712][ T253] ___sys_sendmsg+0xee/0x170 [ 6818.539712][ T253] __sys_sendmsg+0xcd/0x170 [ 6818.539712][ T253] do_syscall_64+0xc6/0x1e0 [ 6818.539712][ T253] [ 6818.541913][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6818.541913][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6818.541913][ T253] ipv6_find_idev+0x102/0x170 [ 6818.541913][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6818.541913][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6818.541913][ T253] netlink_rcv_skb+0x130/0x360 [ 6818.541913][ T253] netlink_unicast+0x449/0x710 [ 6818.541913][ T253] netlink_sendmsg+0x723/0xbe0 [ 6818.541913][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6818.541913][ T253] ___sys_sendmsg+0xee/0x170 [ 6818.541913][ T253] __sys_sendmsg+0xcd/0x170 [ 6818.541913][ T253] do_syscall_64+0xc6/0x1e0 [ 6818.541913][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6818.541913][ T253] [ 6818.543635][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6818.543635][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6818.543635][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6818.543635][ T253] ipv6_find_idev+0x102/0x170 [ 6818.543635][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6818.543635][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6818.543635][ T253] netlink_rcv_skb+0x130/0x360 [ 6818.543635][ T253] netlink_unicast+0x449/0x710 [ 6818.543635][ T253] netlink_sendmsg+0x723/0xbe0 [ 6818.543635][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6818.543635][ T253] ___sys_sendmsg+0xee/0x170 [ 6818.543635][ T253] __sys_sendmsg+0xcd/0x170 [ 6818.543635][ T253] do_syscall_64+0xc6/0x1e0 [ 6818.543635][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6818.543635][ T253] [ 6828.770295][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6828.770776][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6828.770776][ T253] dst_init+0x84/0x4a0 [ 6828.770776][ T253] dst_alloc+0x97/0x150 [ 6828.770776][ T253] ip6_dst_alloc+0x23/0x90 [ 6828.770776][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6828.770776][ T253] ip6_pol_route+0x56f/0x840 [ 6828.770776][ T253] fib6_rule_lookup+0x334/0x630 [ 6828.770776][ T253] ip6_route_output_flags+0x259/0x480 [ 6828.770776][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6828.770776][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6828.770776][ T253] netlink_rcv_skb+0x130/0x360 [ 6828.770776][ T253] netlink_unicast+0x449/0x710 [ 6828.770776][ T253] netlink_sendmsg+0x723/0xbe0 [ 6828.770776][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6828.770776][ T253] ___sys_sendmsg+0xee/0x170 [ 6828.770776][ T253] __sys_sendmsg+0xcd/0x170 [ 6828.770776][ T253] do_syscall_64+0xc6/0x1e0 [ 6828.770776][ T253] [ 6828.772978][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6828.772978][ T253] netdev_get_by_index+0x5e/0x80 [ 6828.772978][ T253] fib6_nh_init+0x3d8/0x1580 [ 6828.772978][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6828.772978][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6828.772978][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6828.772978][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6828.772978][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6828.772978][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6828.772978][ T253] addrconf_dad_begin+0x310/0x670 [ 6828.772978][ T253] addrconf_dad_work+0x10b/0xab0 [ 6828.772978][ T253] process_one_work+0x84d/0x18a0 [ 6828.772978][ T253] worker_thread+0x587/0xd30 [ 6828.772978][ T253] kthread+0x28a/0x350 [ 6828.772978][ T253] ret_from_fork+0x31/0x70 [ 6828.772978][ T253] ret_from_fork_asm+0x1a/0x30 [ 6828.772978][ T253] [ 6828.775115][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6828.775115][ T253] netdev_get_by_index+0x5e/0x80 [ 6828.775115][ T253] fib6_nh_init+0x3d8/0x1580 [ 6828.775115][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6828.775115][ T253] ip6_route_add+0x1c/0x140 [ 6828.775115][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6828.775115][ T253] inet6_addr_add+0x4f8/0xa40 [ 6828.775115][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6828.775115][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6828.775115][ T253] netlink_rcv_skb+0x130/0x360 [ 6828.775115][ T253] netlink_unicast+0x449/0x710 [ 6828.775115][ T253] netlink_sendmsg+0x723/0xbe0 [ 6828.775115][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6828.775115][ T253] ___sys_sendmsg+0xee/0x170 [ 6828.775115][ T253] __sys_sendmsg+0xcd/0x170 [ 6828.775115][ T253] do_syscall_64+0xc6/0x1e0 [ 6828.775115][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6828.775115][ T253] [ 6828.777355][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6828.777355][ T253] netdev_get_by_index+0x5e/0x80 [ 6828.777355][ T253] fib6_nh_init+0x3d8/0x1580 [ 6828.777355][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6828.777355][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6828.777355][ T253] ipv6_add_addr+0x411/0x2000 [ 6828.777355][ T253] inet6_addr_add+0x30e/0xa40 [ 6828.777355][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6828.777355][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6828.777355][ T253] netlink_rcv_skb+0x130/0x360 [ 6828.777355][ T253] netlink_unicast+0x449/0x710 [ 6828.777355][ T253] netlink_sendmsg+0x723/0xbe0 [ 6828.777355][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6828.777355][ T253] ___sys_sendmsg+0xee/0x170 [ 6828.777355][ T253] __sys_sendmsg+0xcd/0x170 [ 6828.777355][ T253] do_syscall_64+0xc6/0x1e0 [ 6828.777355][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6828.777355][ T253] [ 6828.779603][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6828.779603][ T253] netdev_get_by_index+0x5e/0x80 [ 6828.779603][ T253] fib6_nh_init+0x3d8/0x1580 [ 6828.779603][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6828.779603][ T253] ip6_route_add+0x1c/0x140 [ 6828.779603][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6828.779603][ T253] addrconf_add_dev+0xe2/0x170 [ 6828.779603][ T253] inet6_addr_add+0x12f/0xa40 [ 6828.779603][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6828.779603][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6828.779603][ T253] netlink_rcv_skb+0x130/0x360 [ 6828.779603][ T253] netlink_unicast+0x449/0x710 [ 6828.779603][ T253] netlink_sendmsg+0x723/0xbe0 [ 6828.779603][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6828.779603][ T253] ___sys_sendmsg+0xee/0x170 [ 6828.779603][ T253] __sys_sendmsg+0xcd/0x170 [ 6828.779603][ T253] do_syscall_64+0xc6/0x1e0 [ 6828.779603][ T253] [ 6828.781796][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6828.781796][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6828.781796][ T253] ipv6_find_idev+0x102/0x170 [ 6828.781796][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6828.781796][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6828.781796][ T253] netlink_rcv_skb+0x130/0x360 [ 6828.781796][ T253] netlink_unicast+0x449/0x710 [ 6828.781796][ T253] netlink_sendmsg+0x723/0xbe0 [ 6828.781796][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6828.781796][ T253] ___sys_sendmsg+0xee/0x170 [ 6828.781796][ T253] __sys_sendmsg+0xcd/0x170 [ 6828.781796][ T253] do_syscall_64+0xc6/0x1e0 [ 6828.781796][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6828.781796][ T253] [ 6828.783556][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6828.783556][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6828.783556][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6828.783556][ T253] ipv6_find_idev+0x102/0x170 [ 6828.783556][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6828.783556][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6828.783556][ T253] netlink_rcv_skb+0x130/0x360 [ 6828.783556][ T253] netlink_unicast+0x449/0x710 [ 6828.783556][ T253] netlink_sendmsg+0x723/0xbe0 [ 6828.783556][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6828.783556][ T253] ___sys_sendmsg+0xee/0x170 [ 6828.783556][ T253] __sys_sendmsg+0xcd/0x170 [ 6828.783556][ T253] do_syscall_64+0xc6/0x1e0 [ 6828.783556][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6828.783556][ T253] [ 6838.850305][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6838.850782][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6838.850782][ T253] dst_init+0x84/0x4a0 [ 6838.850782][ T253] dst_alloc+0x97/0x150 [ 6838.850782][ T253] ip6_dst_alloc+0x23/0x90 [ 6838.850782][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6838.850782][ T253] ip6_pol_route+0x56f/0x840 [ 6838.850782][ T253] fib6_rule_lookup+0x334/0x630 [ 6838.850782][ T253] ip6_route_output_flags+0x259/0x480 [ 6838.850782][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6838.850782][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6838.850782][ T253] netlink_rcv_skb+0x130/0x360 [ 6838.850782][ T253] netlink_unicast+0x449/0x710 [ 6838.850782][ T253] netlink_sendmsg+0x723/0xbe0 [ 6838.850782][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6838.850782][ T253] ___sys_sendmsg+0xee/0x170 [ 6838.850782][ T253] __sys_sendmsg+0xcd/0x170 [ 6838.850782][ T253] do_syscall_64+0xc6/0x1e0 [ 6838.850782][ T253] [ 6838.852975][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6838.852975][ T253] netdev_get_by_index+0x5e/0x80 [ 6838.852975][ T253] fib6_nh_init+0x3d8/0x1580 [ 6838.852975][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6838.852975][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6838.852975][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6838.852975][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6838.852975][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6838.852975][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6838.852975][ T253] addrconf_dad_begin+0x310/0x670 [ 6838.852975][ T253] addrconf_dad_work+0x10b/0xab0 [ 6838.852975][ T253] process_one_work+0x84d/0x18a0 [ 6838.852975][ T253] worker_thread+0x587/0xd30 [ 6838.852975][ T253] kthread+0x28a/0x350 [ 6838.852975][ T253] ret_from_fork+0x31/0x70 [ 6838.852975][ T253] ret_from_fork_asm+0x1a/0x30 [ 6838.852975][ T253] [ 6838.855135][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6838.855135][ T253] netdev_get_by_index+0x5e/0x80 [ 6838.855135][ T253] fib6_nh_init+0x3d8/0x1580 [ 6838.855135][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6838.855135][ T253] ip6_route_add+0x1c/0x140 [ 6838.855135][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6838.855135][ T253] inet6_addr_add+0x4f8/0xa40 [ 6838.855135][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6838.855135][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6838.855135][ T253] netlink_rcv_skb+0x130/0x360 [ 6838.855135][ T253] netlink_unicast+0x449/0x710 [ 6838.855135][ T253] netlink_sendmsg+0x723/0xbe0 [ 6838.855135][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6838.855135][ T253] ___sys_sendmsg+0xee/0x170 [ 6838.855135][ T253] __sys_sendmsg+0xcd/0x170 [ 6838.855135][ T253] do_syscall_64+0xc6/0x1e0 [ 6838.855135][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6838.855135][ T253] [ 6838.857374][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6838.857374][ T253] netdev_get_by_index+0x5e/0x80 [ 6838.857374][ T253] fib6_nh_init+0x3d8/0x1580 [ 6838.857374][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6838.857374][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6838.857374][ T253] ipv6_add_addr+0x411/0x2000 [ 6838.857374][ T253] inet6_addr_add+0x30e/0xa40 [ 6838.857374][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6838.857374][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6838.857374][ T253] netlink_rcv_skb+0x130/0x360 [ 6838.857374][ T253] netlink_unicast+0x449/0x710 [ 6838.857374][ T253] netlink_sendmsg+0x723/0xbe0 [ 6838.857374][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6838.857374][ T253] ___sys_sendmsg+0xee/0x170 [ 6838.857374][ T253] __sys_sendmsg+0xcd/0x170 [ 6838.857374][ T253] do_syscall_64+0xc6/0x1e0 [ 6838.857374][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6838.857374][ T253] [ 6838.859621][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6838.859621][ T253] netdev_get_by_index+0x5e/0x80 [ 6838.859621][ T253] fib6_nh_init+0x3d8/0x1580 [ 6838.859621][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6838.859621][ T253] ip6_route_add+0x1c/0x140 [ 6838.859621][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6838.859621][ T253] addrconf_add_dev+0xe2/0x170 [ 6838.859621][ T253] inet6_addr_add+0x12f/0xa40 [ 6838.859621][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6838.859621][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6838.859621][ T253] netlink_rcv_skb+0x130/0x360 [ 6838.859621][ T253] netlink_unicast+0x449/0x710 [ 6838.859621][ T253] netlink_sendmsg+0x723/0xbe0 [ 6838.859621][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6838.859621][ T253] ___sys_sendmsg+0xee/0x170 [ 6838.859621][ T253] __sys_sendmsg+0xcd/0x170 [ 6838.859621][ T253] do_syscall_64+0xc6/0x1e0 [ 6838.859621][ T253] [ 6838.861815][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6838.861815][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6838.861815][ T253] ipv6_find_idev+0x102/0x170 [ 6838.861815][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6838.861815][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6838.861815][ T253] netlink_rcv_skb+0x130/0x360 [ 6838.861815][ T253] netlink_unicast+0x449/0x710 [ 6838.861815][ T253] netlink_sendmsg+0x723/0xbe0 [ 6838.861815][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6838.861815][ T253] ___sys_sendmsg+0xee/0x170 [ 6838.861815][ T253] __sys_sendmsg+0xcd/0x170 [ 6838.861815][ T253] do_syscall_64+0xc6/0x1e0 [ 6838.861815][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6838.861815][ T253] [ 6838.863536][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6838.863536][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6838.863536][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6838.863536][ T253] ipv6_find_idev+0x102/0x170 [ 6838.863536][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6838.863536][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6838.863536][ T253] netlink_rcv_skb+0x130/0x360 [ 6838.863536][ T253] netlink_unicast+0x449/0x710 [ 6838.863536][ T253] netlink_sendmsg+0x723/0xbe0 [ 6838.863536][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6838.863536][ T253] ___sys_sendmsg+0xee/0x170 [ 6838.863536][ T253] __sys_sendmsg+0xcd/0x170 [ 6838.863536][ T253] do_syscall_64+0xc6/0x1e0 [ 6838.863536][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6838.863536][ T253] [ 6849.114304][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6849.114793][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6849.114793][ T253] dst_init+0x84/0x4a0 [ 6849.114793][ T253] dst_alloc+0x97/0x150 [ 6849.114793][ T253] ip6_dst_alloc+0x23/0x90 [ 6849.114793][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6849.114793][ T253] ip6_pol_route+0x56f/0x840 [ 6849.114793][ T253] fib6_rule_lookup+0x334/0x630 [ 6849.114793][ T253] ip6_route_output_flags+0x259/0x480 [ 6849.114793][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6849.114793][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6849.114793][ T253] netlink_rcv_skb+0x130/0x360 [ 6849.114793][ T253] netlink_unicast+0x449/0x710 [ 6849.114793][ T253] netlink_sendmsg+0x723/0xbe0 [ 6849.114793][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6849.114793][ T253] ___sys_sendmsg+0xee/0x170 [ 6849.114793][ T253] __sys_sendmsg+0xcd/0x170 [ 6849.114793][ T253] do_syscall_64+0xc6/0x1e0 [ 6849.114793][ T253] [ 6849.116990][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6849.116990][ T253] netdev_get_by_index+0x5e/0x80 [ 6849.116990][ T253] fib6_nh_init+0x3d8/0x1580 [ 6849.116990][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6849.116990][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6849.116990][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6849.116990][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6849.116990][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6849.116990][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6849.116990][ T253] addrconf_dad_begin+0x310/0x670 [ 6849.116990][ T253] addrconf_dad_work+0x10b/0xab0 [ 6849.116990][ T253] process_one_work+0x84d/0x18a0 [ 6849.116990][ T253] worker_thread+0x587/0xd30 [ 6849.116990][ T253] kthread+0x28a/0x350 [ 6849.116990][ T253] ret_from_fork+0x31/0x70 [ 6849.116990][ T253] ret_from_fork_asm+0x1a/0x30 [ 6849.116990][ T253] [ 6849.119141][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6849.119141][ T253] netdev_get_by_index+0x5e/0x80 [ 6849.119141][ T253] fib6_nh_init+0x3d8/0x1580 [ 6849.119141][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6849.119141][ T253] ip6_route_add+0x1c/0x140 [ 6849.119141][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6849.119141][ T253] inet6_addr_add+0x4f8/0xa40 [ 6849.119141][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6849.119141][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6849.119141][ T253] netlink_rcv_skb+0x130/0x360 [ 6849.119141][ T253] netlink_unicast+0x449/0x710 [ 6849.119141][ T253] netlink_sendmsg+0x723/0xbe0 [ 6849.119141][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6849.119141][ T253] ___sys_sendmsg+0xee/0x170 [ 6849.119141][ T253] __sys_sendmsg+0xcd/0x170 [ 6849.119141][ T253] do_syscall_64+0xc6/0x1e0 [ 6849.119141][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6849.119141][ T253] [ 6849.121376][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6849.121376][ T253] netdev_get_by_index+0x5e/0x80 [ 6849.121376][ T253] fib6_nh_init+0x3d8/0x1580 [ 6849.121376][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6849.121376][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6849.121376][ T253] ipv6_add_addr+0x411/0x2000 [ 6849.121376][ T253] inet6_addr_add+0x30e/0xa40 [ 6849.121376][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6849.121376][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6849.121376][ T253] netlink_rcv_skb+0x130/0x360 [ 6849.121376][ T253] netlink_unicast+0x449/0x710 [ 6849.121376][ T253] netlink_sendmsg+0x723/0xbe0 [ 6849.121376][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6849.121376][ T253] ___sys_sendmsg+0xee/0x170 [ 6849.121376][ T253] __sys_sendmsg+0xcd/0x170 [ 6849.121376][ T253] do_syscall_64+0xc6/0x1e0 [ 6849.121376][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6849.121376][ T253] [ 6849.123614][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6849.123614][ T253] netdev_get_by_index+0x5e/0x80 [ 6849.123614][ T253] fib6_nh_init+0x3d8/0x1580 [ 6849.123614][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6849.123614][ T253] ip6_route_add+0x1c/0x140 [ 6849.123614][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6849.123614][ T253] addrconf_add_dev+0xe2/0x170 [ 6849.123614][ T253] inet6_addr_add+0x12f/0xa40 [ 6849.123614][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6849.123614][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6849.123614][ T253] netlink_rcv_skb+0x130/0x360 [ 6849.123614][ T253] netlink_unicast+0x449/0x710 [ 6849.123614][ T253] netlink_sendmsg+0x723/0xbe0 [ 6849.123614][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6849.123614][ T253] ___sys_sendmsg+0xee/0x170 [ 6849.123614][ T253] __sys_sendmsg+0xcd/0x170 [ 6849.123614][ T253] do_syscall_64+0xc6/0x1e0 [ 6849.123614][ T253] [ 6849.125826][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6849.125826][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6849.125826][ T253] ipv6_find_idev+0x102/0x170 [ 6849.125826][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6849.125826][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6849.125826][ T253] netlink_rcv_skb+0x130/0x360 [ 6849.125826][ T253] netlink_unicast+0x449/0x710 [ 6849.125826][ T253] netlink_sendmsg+0x723/0xbe0 [ 6849.125826][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6849.125826][ T253] ___sys_sendmsg+0xee/0x170 [ 6849.125826][ T253] __sys_sendmsg+0xcd/0x170 [ 6849.125826][ T253] do_syscall_64+0xc6/0x1e0 [ 6849.125826][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6849.125826][ T253] [ 6849.127548][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6849.127548][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6849.127548][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6849.127548][ T253] ipv6_find_idev+0x102/0x170 [ 6849.127548][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6849.127548][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6849.127548][ T253] netlink_rcv_skb+0x130/0x360 [ 6849.127548][ T253] netlink_unicast+0x449/0x710 [ 6849.127548][ T253] netlink_sendmsg+0x723/0xbe0 [ 6849.127548][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6849.127548][ T253] ___sys_sendmsg+0xee/0x170 [ 6849.127548][ T253] __sys_sendmsg+0xcd/0x170 [ 6849.127548][ T253] do_syscall_64+0xc6/0x1e0 [ 6849.127548][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6849.127548][ T253] [ 6859.202297][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6859.202799][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6859.202799][ T253] dst_init+0x84/0x4a0 [ 6859.202799][ T253] dst_alloc+0x97/0x150 [ 6859.202799][ T253] ip6_dst_alloc+0x23/0x90 [ 6859.202799][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6859.202799][ T253] ip6_pol_route+0x56f/0x840 [ 6859.202799][ T253] fib6_rule_lookup+0x334/0x630 [ 6859.202799][ T253] ip6_route_output_flags+0x259/0x480 [ 6859.202799][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6859.202799][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6859.202799][ T253] netlink_rcv_skb+0x130/0x360 [ 6859.202799][ T253] netlink_unicast+0x449/0x710 [ 6859.202799][ T253] netlink_sendmsg+0x723/0xbe0 [ 6859.202799][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6859.202799][ T253] ___sys_sendmsg+0xee/0x170 [ 6859.202799][ T253] __sys_sendmsg+0xcd/0x170 [ 6859.202799][ T253] do_syscall_64+0xc6/0x1e0 [ 6859.202799][ T253] [ 6859.205011][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6859.205011][ T253] netdev_get_by_index+0x5e/0x80 [ 6859.205011][ T253] fib6_nh_init+0x3d8/0x1580 [ 6859.205011][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6859.205011][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6859.205011][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6859.205011][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6859.205011][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6859.205011][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6859.205011][ T253] addrconf_dad_begin+0x310/0x670 [ 6859.205011][ T253] addrconf_dad_work+0x10b/0xab0 [ 6859.205011][ T253] process_one_work+0x84d/0x18a0 [ 6859.205011][ T253] worker_thread+0x587/0xd30 [ 6859.205011][ T253] kthread+0x28a/0x350 [ 6859.205011][ T253] ret_from_fork+0x31/0x70 [ 6859.205011][ T253] ret_from_fork_asm+0x1a/0x30 [ 6859.205011][ T253] [ 6859.207152][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6859.207152][ T253] netdev_get_by_index+0x5e/0x80 [ 6859.207152][ T253] fib6_nh_init+0x3d8/0x1580 [ 6859.207152][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6859.207152][ T253] ip6_route_add+0x1c/0x140 [ 6859.207152][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6859.207152][ T253] inet6_addr_add+0x4f8/0xa40 [ 6859.207152][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6859.207152][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6859.207152][ T253] netlink_rcv_skb+0x130/0x360 [ 6859.207152][ T253] netlink_unicast+0x449/0x710 [ 6859.207152][ T253] netlink_sendmsg+0x723/0xbe0 [ 6859.207152][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6859.207152][ T253] ___sys_sendmsg+0xee/0x170 [ 6859.207152][ T253] __sys_sendmsg+0xcd/0x170 [ 6859.207152][ T253] do_syscall_64+0xc6/0x1e0 [ 6859.207152][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6859.207152][ T253] [ 6859.209403][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6859.209403][ T253] netdev_get_by_index+0x5e/0x80 [ 6859.209403][ T253] fib6_nh_init+0x3d8/0x1580 [ 6859.209403][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6859.209403][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6859.209403][ T253] ipv6_add_addr+0x411/0x2000 [ 6859.209403][ T253] inet6_addr_add+0x30e/0xa40 [ 6859.209403][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6859.209403][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6859.209403][ T253] netlink_rcv_skb+0x130/0x360 [ 6859.209403][ T253] netlink_unicast+0x449/0x710 [ 6859.209403][ T253] netlink_sendmsg+0x723/0xbe0 [ 6859.209403][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6859.209403][ T253] ___sys_sendmsg+0xee/0x170 [ 6859.209403][ T253] __sys_sendmsg+0xcd/0x170 [ 6859.209403][ T253] do_syscall_64+0xc6/0x1e0 [ 6859.209403][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6859.209403][ T253] [ 6859.211639][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6859.211639][ T253] netdev_get_by_index+0x5e/0x80 [ 6859.211639][ T253] fib6_nh_init+0x3d8/0x1580 [ 6859.211639][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6859.211639][ T253] ip6_route_add+0x1c/0x140 [ 6859.211639][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6859.211639][ T253] addrconf_add_dev+0xe2/0x170 [ 6859.211639][ T253] inet6_addr_add+0x12f/0xa40 [ 6859.211639][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6859.211639][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6859.211639][ T253] netlink_rcv_skb+0x130/0x360 [ 6859.211639][ T253] netlink_unicast+0x449/0x710 [ 6859.211639][ T253] netlink_sendmsg+0x723/0xbe0 [ 6859.211639][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6859.211639][ T253] ___sys_sendmsg+0xee/0x170 [ 6859.211639][ T253] __sys_sendmsg+0xcd/0x170 [ 6859.211639][ T253] do_syscall_64+0xc6/0x1e0 [ 6859.211639][ T253] [ 6859.213832][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6859.213832][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6859.213832][ T253] ipv6_find_idev+0x102/0x170 [ 6859.213832][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6859.213832][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6859.213832][ T253] netlink_rcv_skb+0x130/0x360 [ 6859.213832][ T253] netlink_unicast+0x449/0x710 [ 6859.213832][ T253] netlink_sendmsg+0x723/0xbe0 [ 6859.213832][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6859.213832][ T253] ___sys_sendmsg+0xee/0x170 [ 6859.213832][ T253] __sys_sendmsg+0xcd/0x170 [ 6859.213832][ T253] do_syscall_64+0xc6/0x1e0 [ 6859.213832][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6859.213832][ T253] [ 6859.215551][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6859.215551][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6859.215551][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6859.215551][ T253] ipv6_find_idev+0x102/0x170 [ 6859.215551][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6859.215551][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6859.215551][ T253] netlink_rcv_skb+0x130/0x360 [ 6859.215551][ T253] netlink_unicast+0x449/0x710 [ 6859.215551][ T253] netlink_sendmsg+0x723/0xbe0 [ 6859.215551][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6859.215551][ T253] ___sys_sendmsg+0xee/0x170 [ 6859.215551][ T253] __sys_sendmsg+0xcd/0x170 [ 6859.215551][ T253] do_syscall_64+0xc6/0x1e0 [ 6859.215551][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6859.215551][ T253] [ 6869.458297][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6869.458741][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6869.458741][ T253] dst_init+0x84/0x4a0 [ 6869.458741][ T253] dst_alloc+0x97/0x150 [ 6869.458741][ T253] ip6_dst_alloc+0x23/0x90 [ 6869.458741][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6869.458741][ T253] ip6_pol_route+0x56f/0x840 [ 6869.458741][ T253] fib6_rule_lookup+0x334/0x630 [ 6869.458741][ T253] ip6_route_output_flags+0x259/0x480 [ 6869.458741][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6869.458741][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6869.458741][ T253] netlink_rcv_skb+0x130/0x360 [ 6869.458741][ T253] netlink_unicast+0x449/0x710 [ 6869.458741][ T253] netlink_sendmsg+0x723/0xbe0 [ 6869.458741][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6869.458741][ T253] ___sys_sendmsg+0xee/0x170 [ 6869.458741][ T253] __sys_sendmsg+0xcd/0x170 [ 6869.458741][ T253] do_syscall_64+0xc6/0x1e0 [ 6869.458741][ T253] [ 6869.461104][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6869.461104][ T253] netdev_get_by_index+0x5e/0x80 [ 6869.461104][ T253] fib6_nh_init+0x3d8/0x1580 [ 6869.461104][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6869.461104][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6869.461104][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6869.461104][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6869.461104][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6869.461104][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6869.461104][ T253] addrconf_dad_begin+0x310/0x670 [ 6869.461104][ T253] addrconf_dad_work+0x10b/0xab0 [ 6869.461104][ T253] process_one_work+0x84d/0x18a0 [ 6869.461104][ T253] worker_thread+0x587/0xd30 [ 6869.461104][ T253] kthread+0x28a/0x350 [ 6869.461104][ T253] ret_from_fork+0x31/0x70 [ 6869.461104][ T253] ret_from_fork_asm+0x1a/0x30 [ 6869.461104][ T253] [ 6869.463428][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6869.463428][ T253] netdev_get_by_index+0x5e/0x80 [ 6869.463428][ T253] fib6_nh_init+0x3d8/0x1580 [ 6869.463428][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6869.463428][ T253] ip6_route_add+0x1c/0x140 [ 6869.463428][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6869.463428][ T253] inet6_addr_add+0x4f8/0xa40 [ 6869.463428][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6869.463428][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6869.463428][ T253] netlink_rcv_skb+0x130/0x360 [ 6869.463428][ T253] netlink_unicast+0x449/0x710 [ 6869.463428][ T253] netlink_sendmsg+0x723/0xbe0 [ 6869.463428][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6869.463428][ T253] ___sys_sendmsg+0xee/0x170 [ 6869.463428][ T253] __sys_sendmsg+0xcd/0x170 [ 6869.463428][ T253] do_syscall_64+0xc6/0x1e0 [ 6869.463428][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6869.463428][ T253] [ 6869.465866][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6869.465866][ T253] netdev_get_by_index+0x5e/0x80 [ 6869.465866][ T253] fib6_nh_init+0x3d8/0x1580 [ 6869.465866][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6869.465866][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6869.465866][ T253] ipv6_add_addr+0x411/0x2000 [ 6869.465866][ T253] inet6_addr_add+0x30e/0xa40 [ 6869.465866][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6869.465866][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6869.465866][ T253] netlink_rcv_skb+0x130/0x360 [ 6869.465866][ T253] netlink_unicast+0x449/0x710 [ 6869.465866][ T253] netlink_sendmsg+0x723/0xbe0 [ 6869.465866][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6869.465866][ T253] ___sys_sendmsg+0xee/0x170 [ 6869.465866][ T253] __sys_sendmsg+0xcd/0x170 [ 6869.465866][ T253] do_syscall_64+0xc6/0x1e0 [ 6869.465866][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6869.465866][ T253] [ 6869.468301][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6869.468301][ T253] netdev_get_by_index+0x5e/0x80 [ 6869.468301][ T253] fib6_nh_init+0x3d8/0x1580 [ 6869.468301][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6869.468301][ T253] ip6_route_add+0x1c/0x140 [ 6869.468301][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6869.468301][ T253] addrconf_add_dev+0xe2/0x170 [ 6869.468301][ T253] inet6_addr_add+0x12f/0xa40 [ 6869.468301][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6869.468301][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6869.468301][ T253] netlink_rcv_skb+0x130/0x360 [ 6869.468301][ T253] netlink_unicast+0x449/0x710 [ 6869.468301][ T253] netlink_sendmsg+0x723/0xbe0 [ 6869.468301][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6869.468301][ T253] ___sys_sendmsg+0xee/0x170 [ 6869.468301][ T253] __sys_sendmsg+0xcd/0x170 [ 6869.468301][ T253] do_syscall_64+0xc6/0x1e0 [ 6869.468301][ T253] [ 6869.470669][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6869.470669][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6869.470669][ T253] ipv6_find_idev+0x102/0x170 [ 6869.470669][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6869.470669][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6869.470669][ T253] netlink_rcv_skb+0x130/0x360 [ 6869.470669][ T253] netlink_unicast+0x449/0x710 [ 6869.470669][ T253] netlink_sendmsg+0x723/0xbe0 [ 6869.470669][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6869.470669][ T253] ___sys_sendmsg+0xee/0x170 [ 6869.470669][ T253] __sys_sendmsg+0xcd/0x170 [ 6869.470669][ T253] do_syscall_64+0xc6/0x1e0 [ 6869.470669][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6869.470669][ T253] [ 6869.472529][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6869.472529][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6869.472529][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6869.472529][ T253] ipv6_find_idev+0x102/0x170 [ 6869.472529][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6869.472529][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6869.472529][ T253] netlink_rcv_skb+0x130/0x360 [ 6869.472529][ T253] netlink_unicast+0x449/0x710 [ 6869.472529][ T253] netlink_sendmsg+0x723/0xbe0 [ 6869.472529][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6869.472529][ T253] ___sys_sendmsg+0xee/0x170 [ 6869.472529][ T253] __sys_sendmsg+0xcd/0x170 [ 6869.472529][ T253] do_syscall_64+0xc6/0x1e0 [ 6869.472529][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6869.472529][ T253] [ 6879.714324][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6879.714798][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6879.714798][ T253] dst_init+0x84/0x4a0 [ 6879.714798][ T253] dst_alloc+0x97/0x150 [ 6879.714798][ T253] ip6_dst_alloc+0x23/0x90 [ 6879.714798][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6879.714798][ T253] ip6_pol_route+0x56f/0x840 [ 6879.714798][ T253] fib6_rule_lookup+0x334/0x630 [ 6879.714798][ T253] ip6_route_output_flags+0x259/0x480 [ 6879.714798][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6879.714798][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6879.714798][ T253] netlink_rcv_skb+0x130/0x360 [ 6879.714798][ T253] netlink_unicast+0x449/0x710 [ 6879.714798][ T253] netlink_sendmsg+0x723/0xbe0 [ 6879.714798][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6879.714798][ T253] ___sys_sendmsg+0xee/0x170 [ 6879.714798][ T253] __sys_sendmsg+0xcd/0x170 [ 6879.714798][ T253] do_syscall_64+0xc6/0x1e0 [ 6879.714798][ T253] [ 6879.717520][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6879.717520][ T253] netdev_get_by_index+0x5e/0x80 [ 6879.717520][ T253] fib6_nh_init+0x3d8/0x1580 [ 6879.717520][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6879.717520][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6879.717520][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6879.717520][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6879.717520][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6879.717520][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6879.717520][ T253] addrconf_dad_begin+0x310/0x670 [ 6879.717520][ T253] addrconf_dad_work+0x10b/0xab0 [ 6879.717520][ T253] process_one_work+0x84d/0x18a0 [ 6879.717520][ T253] worker_thread+0x587/0xd30 [ 6879.717520][ T253] kthread+0x28a/0x350 [ 6879.717520][ T253] ret_from_fork+0x31/0x70 [ 6879.717520][ T253] ret_from_fork_asm+0x1a/0x30 [ 6879.717520][ T253] [ 6879.719669][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6879.719669][ T253] netdev_get_by_index+0x5e/0x80 [ 6879.719669][ T253] fib6_nh_init+0x3d8/0x1580 [ 6879.719669][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6879.719669][ T253] ip6_route_add+0x1c/0x140 [ 6879.719669][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6879.719669][ T253] inet6_addr_add+0x4f8/0xa40 [ 6879.719669][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6879.719669][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6879.719669][ T253] netlink_rcv_skb+0x130/0x360 [ 6879.719669][ T253] netlink_unicast+0x449/0x710 [ 6879.719669][ T253] netlink_sendmsg+0x723/0xbe0 [ 6879.719669][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6879.719669][ T253] ___sys_sendmsg+0xee/0x170 [ 6879.719669][ T253] __sys_sendmsg+0xcd/0x170 [ 6879.719669][ T253] do_syscall_64+0xc6/0x1e0 [ 6879.719669][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6879.719669][ T253] [ 6879.721922][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6879.721922][ T253] netdev_get_by_index+0x5e/0x80 [ 6879.721922][ T253] fib6_nh_init+0x3d8/0x1580 [ 6879.721922][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6879.721922][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6879.721922][ T253] ipv6_add_addr+0x411/0x2000 [ 6879.721922][ T253] inet6_addr_add+0x30e/0xa40 [ 6879.721922][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6879.721922][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6879.721922][ T253] netlink_rcv_skb+0x130/0x360 [ 6879.721922][ T253] netlink_unicast+0x449/0x710 [ 6879.721922][ T253] netlink_sendmsg+0x723/0xbe0 [ 6879.721922][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6879.721922][ T253] ___sys_sendmsg+0xee/0x170 [ 6879.721922][ T253] __sys_sendmsg+0xcd/0x170 [ 6879.721922][ T253] do_syscall_64+0xc6/0x1e0 [ 6879.721922][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6879.721922][ T253] [ 6879.724155][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6879.724155][ T253] netdev_get_by_index+0x5e/0x80 [ 6879.724155][ T253] fib6_nh_init+0x3d8/0x1580 [ 6879.724155][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6879.724155][ T253] ip6_route_add+0x1c/0x140 [ 6879.724155][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6879.724155][ T253] addrconf_add_dev+0xe2/0x170 [ 6879.724155][ T253] inet6_addr_add+0x12f/0xa40 [ 6879.724155][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6879.724155][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6879.724155][ T253] netlink_rcv_skb+0x130/0x360 [ 6879.724155][ T253] netlink_unicast+0x449/0x710 [ 6879.724155][ T253] netlink_sendmsg+0x723/0xbe0 [ 6879.724155][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6879.724155][ T253] ___sys_sendmsg+0xee/0x170 [ 6879.724155][ T253] __sys_sendmsg+0xcd/0x170 [ 6879.724155][ T253] do_syscall_64+0xc6/0x1e0 [ 6879.724155][ T253] [ 6879.726353][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6879.726353][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6879.726353][ T253] ipv6_find_idev+0x102/0x170 [ 6879.726353][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6879.726353][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6879.726353][ T253] netlink_rcv_skb+0x130/0x360 [ 6879.726353][ T253] netlink_unicast+0x449/0x710 [ 6879.726353][ T253] netlink_sendmsg+0x723/0xbe0 [ 6879.726353][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6879.726353][ T253] ___sys_sendmsg+0xee/0x170 [ 6879.726353][ T253] __sys_sendmsg+0xcd/0x170 [ 6879.726353][ T253] do_syscall_64+0xc6/0x1e0 [ 6879.726353][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6879.726353][ T253] [ 6879.728081][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6879.728081][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6879.728081][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6879.728081][ T253] ipv6_find_idev+0x102/0x170 [ 6879.728081][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6879.728081][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6879.728081][ T253] netlink_rcv_skb+0x130/0x360 [ 6879.728081][ T253] netlink_unicast+0x449/0x710 [ 6879.728081][ T253] netlink_sendmsg+0x723/0xbe0 [ 6879.728081][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6879.728081][ T253] ___sys_sendmsg+0xee/0x170 [ 6879.728081][ T253] __sys_sendmsg+0xcd/0x170 [ 6879.728081][ T253] do_syscall_64+0xc6/0x1e0 [ 6879.728081][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6879.728081][ T253] [ 6889.970304][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6889.970786][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6889.970786][ T253] dst_init+0x84/0x4a0 [ 6889.970786][ T253] dst_alloc+0x97/0x150 [ 6889.970786][ T253] ip6_dst_alloc+0x23/0x90 [ 6889.970786][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6889.970786][ T253] ip6_pol_route+0x56f/0x840 [ 6889.970786][ T253] fib6_rule_lookup+0x334/0x630 [ 6889.970786][ T253] ip6_route_output_flags+0x259/0x480 [ 6889.970786][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6889.970786][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6889.970786][ T253] netlink_rcv_skb+0x130/0x360 [ 6889.970786][ T253] netlink_unicast+0x449/0x710 [ 6889.970786][ T253] netlink_sendmsg+0x723/0xbe0 [ 6889.970786][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6889.970786][ T253] ___sys_sendmsg+0xee/0x170 [ 6889.970786][ T253] __sys_sendmsg+0xcd/0x170 [ 6889.970786][ T253] do_syscall_64+0xc6/0x1e0 [ 6889.970786][ T253] [ 6889.972986][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6889.972986][ T253] netdev_get_by_index+0x5e/0x80 [ 6889.972986][ T253] fib6_nh_init+0x3d8/0x1580 [ 6889.972986][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6889.972986][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6889.972986][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6889.972986][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6889.972986][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6889.972986][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6889.972986][ T253] addrconf_dad_begin+0x310/0x670 [ 6889.972986][ T253] addrconf_dad_work+0x10b/0xab0 [ 6889.972986][ T253] process_one_work+0x84d/0x18a0 [ 6889.972986][ T253] worker_thread+0x587/0xd30 [ 6889.972986][ T253] kthread+0x28a/0x350 [ 6889.972986][ T253] ret_from_fork+0x31/0x70 [ 6889.972986][ T253] ret_from_fork_asm+0x1a/0x30 [ 6889.972986][ T253] [ 6889.975493][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6889.975493][ T253] netdev_get_by_index+0x5e/0x80 [ 6889.975493][ T253] fib6_nh_init+0x3d8/0x1580 [ 6889.975493][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6889.975493][ T253] ip6_route_add+0x1c/0x140 [ 6889.975493][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6889.975493][ T253] inet6_addr_add+0x4f8/0xa40 [ 6889.975493][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6889.975493][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6889.975493][ T253] netlink_rcv_skb+0x130/0x360 [ 6889.975493][ T253] netlink_unicast+0x449/0x710 [ 6889.975493][ T253] netlink_sendmsg+0x723/0xbe0 [ 6889.975493][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6889.975493][ T253] ___sys_sendmsg+0xee/0x170 [ 6889.975493][ T253] __sys_sendmsg+0xcd/0x170 [ 6889.975493][ T253] do_syscall_64+0xc6/0x1e0 [ 6889.975493][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6889.975493][ T253] [ 6889.977751][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6889.977751][ T253] netdev_get_by_index+0x5e/0x80 [ 6889.977751][ T253] fib6_nh_init+0x3d8/0x1580 [ 6889.977751][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6889.977751][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6889.977751][ T253] ipv6_add_addr+0x411/0x2000 [ 6889.977751][ T253] inet6_addr_add+0x30e/0xa40 [ 6889.977751][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6889.977751][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6889.977751][ T253] netlink_rcv_skb+0x130/0x360 [ 6889.977751][ T253] netlink_unicast+0x449/0x710 [ 6889.977751][ T253] netlink_sendmsg+0x723/0xbe0 [ 6889.977751][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6889.977751][ T253] ___sys_sendmsg+0xee/0x170 [ 6889.977751][ T253] __sys_sendmsg+0xcd/0x170 [ 6889.977751][ T253] do_syscall_64+0xc6/0x1e0 [ 6889.977751][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6889.977751][ T253] [ 6889.979983][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6889.979983][ T253] netdev_get_by_index+0x5e/0x80 [ 6889.979983][ T253] fib6_nh_init+0x3d8/0x1580 [ 6889.979983][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6889.979983][ T253] ip6_route_add+0x1c/0x140 [ 6889.979983][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6889.979983][ T253] addrconf_add_dev+0xe2/0x170 [ 6889.979983][ T253] inet6_addr_add+0x12f/0xa40 [ 6889.979983][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6889.979983][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6889.979983][ T253] netlink_rcv_skb+0x130/0x360 [ 6889.979983][ T253] netlink_unicast+0x449/0x710 [ 6889.979983][ T253] netlink_sendmsg+0x723/0xbe0 [ 6889.979983][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6889.979983][ T253] ___sys_sendmsg+0xee/0x170 [ 6889.979983][ T253] __sys_sendmsg+0xcd/0x170 [ 6889.979983][ T253] do_syscall_64+0xc6/0x1e0 [ 6889.979983][ T253] [ 6889.982180][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6889.982180][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6889.982180][ T253] ipv6_find_idev+0x102/0x170 [ 6889.982180][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6889.982180][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6889.982180][ T253] netlink_rcv_skb+0x130/0x360 [ 6889.982180][ T253] netlink_unicast+0x449/0x710 [ 6889.982180][ T253] netlink_sendmsg+0x723/0xbe0 [ 6889.982180][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6889.982180][ T253] ___sys_sendmsg+0xee/0x170 [ 6889.982180][ T253] __sys_sendmsg+0xcd/0x170 [ 6889.982180][ T253] do_syscall_64+0xc6/0x1e0 [ 6889.982180][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6889.982180][ T253] [ 6889.983901][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6889.983901][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6889.983901][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6889.983901][ T253] ipv6_find_idev+0x102/0x170 [ 6889.983901][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6889.983901][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6889.983901][ T253] netlink_rcv_skb+0x130/0x360 [ 6889.983901][ T253] netlink_unicast+0x449/0x710 [ 6889.983901][ T253] netlink_sendmsg+0x723/0xbe0 [ 6889.983901][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6889.983901][ T253] ___sys_sendmsg+0xee/0x170 [ 6889.983901][ T253] __sys_sendmsg+0xcd/0x170 [ 6889.983901][ T253] do_syscall_64+0xc6/0x1e0 [ 6889.983901][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6889.983901][ T253] [ 6900.002304][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6900.002778][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6900.002778][ T253] dst_init+0x84/0x4a0 [ 6900.002778][ T253] dst_alloc+0x97/0x150 [ 6900.002778][ T253] ip6_dst_alloc+0x23/0x90 [ 6900.002778][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6900.002778][ T253] ip6_pol_route+0x56f/0x840 [ 6900.002778][ T253] fib6_rule_lookup+0x334/0x630 [ 6900.002778][ T253] ip6_route_output_flags+0x259/0x480 [ 6900.002778][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6900.002778][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6900.002778][ T253] netlink_rcv_skb+0x130/0x360 [ 6900.002778][ T253] netlink_unicast+0x449/0x710 [ 6900.002778][ T253] netlink_sendmsg+0x723/0xbe0 [ 6900.002778][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6900.002778][ T253] ___sys_sendmsg+0xee/0x170 [ 6900.002778][ T253] __sys_sendmsg+0xcd/0x170 [ 6900.002778][ T253] do_syscall_64+0xc6/0x1e0 [ 6900.002778][ T253] [ 6900.004980][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6900.004980][ T253] netdev_get_by_index+0x5e/0x80 [ 6900.004980][ T253] fib6_nh_init+0x3d8/0x1580 [ 6900.004980][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6900.004980][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6900.004980][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6900.004980][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6900.004980][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6900.004980][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6900.004980][ T253] addrconf_dad_begin+0x310/0x670 [ 6900.004980][ T253] addrconf_dad_work+0x10b/0xab0 [ 6900.004980][ T253] process_one_work+0x84d/0x18a0 [ 6900.004980][ T253] worker_thread+0x587/0xd30 [ 6900.004980][ T253] kthread+0x28a/0x350 [ 6900.004980][ T253] ret_from_fork+0x31/0x70 [ 6900.004980][ T253] ret_from_fork_asm+0x1a/0x30 [ 6900.004980][ T253] [ 6900.007131][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6900.007131][ T253] netdev_get_by_index+0x5e/0x80 [ 6900.007131][ T253] fib6_nh_init+0x3d8/0x1580 [ 6900.007131][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6900.007131][ T253] ip6_route_add+0x1c/0x140 [ 6900.007131][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6900.007131][ T253] inet6_addr_add+0x4f8/0xa40 [ 6900.007131][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6900.007131][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6900.007131][ T253] netlink_rcv_skb+0x130/0x360 [ 6900.007131][ T253] netlink_unicast+0x449/0x710 [ 6900.007131][ T253] netlink_sendmsg+0x723/0xbe0 [ 6900.007131][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6900.007131][ T253] ___sys_sendmsg+0xee/0x170 [ 6900.007131][ T253] __sys_sendmsg+0xcd/0x170 [ 6900.007131][ T253] do_syscall_64+0xc6/0x1e0 [ 6900.007131][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6900.007131][ T253] [ 6900.009378][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6900.009378][ T253] netdev_get_by_index+0x5e/0x80 [ 6900.009378][ T253] fib6_nh_init+0x3d8/0x1580 [ 6900.009378][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6900.009378][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6900.009378][ T253] ipv6_add_addr+0x411/0x2000 [ 6900.009378][ T253] inet6_addr_add+0x30e/0xa40 [ 6900.009378][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6900.009378][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6900.009378][ T253] netlink_rcv_skb+0x130/0x360 [ 6900.009378][ T253] netlink_unicast+0x449/0x710 [ 6900.009378][ T253] netlink_sendmsg+0x723/0xbe0 [ 6900.009378][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6900.009378][ T253] ___sys_sendmsg+0xee/0x170 [ 6900.009378][ T253] __sys_sendmsg+0xcd/0x170 [ 6900.009378][ T253] do_syscall_64+0xc6/0x1e0 [ 6900.009378][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6900.009378][ T253] [ 6900.011615][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6900.011615][ T253] netdev_get_by_index+0x5e/0x80 [ 6900.011615][ T253] fib6_nh_init+0x3d8/0x1580 [ 6900.011615][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6900.011615][ T253] ip6_route_add+0x1c/0x140 [ 6900.011615][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6900.011615][ T253] addrconf_add_dev+0xe2/0x170 [ 6900.011615][ T253] inet6_addr_add+0x12f/0xa40 [ 6900.011615][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6900.011615][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6900.011615][ T253] netlink_rcv_skb+0x130/0x360 [ 6900.011615][ T253] netlink_unicast+0x449/0x710 [ 6900.011615][ T253] netlink_sendmsg+0x723/0xbe0 [ 6900.011615][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6900.011615][ T253] ___sys_sendmsg+0xee/0x170 [ 6900.011615][ T253] __sys_sendmsg+0xcd/0x170 [ 6900.011615][ T253] do_syscall_64+0xc6/0x1e0 [ 6900.011615][ T253] [ 6900.013816][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6900.013816][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6900.013816][ T253] ipv6_find_idev+0x102/0x170 [ 6900.013816][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6900.013816][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6900.013816][ T253] netlink_rcv_skb+0x130/0x360 [ 6900.013816][ T253] netlink_unicast+0x449/0x710 [ 6900.013816][ T253] netlink_sendmsg+0x723/0xbe0 [ 6900.013816][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6900.013816][ T253] ___sys_sendmsg+0xee/0x170 [ 6900.013816][ T253] __sys_sendmsg+0xcd/0x170 [ 6900.013816][ T253] do_syscall_64+0xc6/0x1e0 [ 6900.013816][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6900.013816][ T253] [ 6900.015541][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6900.015541][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6900.015541][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6900.015541][ T253] ipv6_find_idev+0x102/0x170 [ 6900.015541][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6900.015541][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6900.015541][ T253] netlink_rcv_skb+0x130/0x360 [ 6900.015541][ T253] netlink_unicast+0x449/0x710 [ 6900.015541][ T253] netlink_sendmsg+0x723/0xbe0 [ 6900.015541][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6900.015541][ T253] ___sys_sendmsg+0xee/0x170 [ 6900.015541][ T253] __sys_sendmsg+0xcd/0x170 [ 6900.015541][ T253] do_syscall_64+0xc6/0x1e0 [ 6900.015541][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6900.015541][ T253] [ 6910.266305][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6910.266721][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6910.266721][ T253] dst_init+0x84/0x4a0 [ 6910.266721][ T253] dst_alloc+0x97/0x150 [ 6910.266721][ T253] ip6_dst_alloc+0x23/0x90 [ 6910.266721][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6910.266721][ T253] ip6_pol_route+0x56f/0x840 [ 6910.266721][ T253] fib6_rule_lookup+0x334/0x630 [ 6910.266721][ T253] ip6_route_output_flags+0x259/0x480 [ 6910.266721][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6910.266721][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6910.266721][ T253] netlink_rcv_skb+0x130/0x360 [ 6910.266721][ T253] netlink_unicast+0x449/0x710 [ 6910.266721][ T253] netlink_sendmsg+0x723/0xbe0 [ 6910.266721][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6910.266721][ T253] ___sys_sendmsg+0xee/0x170 [ 6910.266721][ T253] __sys_sendmsg+0xcd/0x170 [ 6910.266721][ T253] do_syscall_64+0xc6/0x1e0 [ 6910.266721][ T253] [ 6910.268932][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6910.268932][ T253] netdev_get_by_index+0x5e/0x80 [ 6910.268932][ T253] fib6_nh_init+0x3d8/0x1580 [ 6910.268932][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6910.268932][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6910.268932][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6910.268932][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6910.268932][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6910.268932][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6910.268932][ T253] addrconf_dad_begin+0x310/0x670 [ 6910.268932][ T253] addrconf_dad_work+0x10b/0xab0 [ 6910.268932][ T253] process_one_work+0x84d/0x18a0 [ 6910.268932][ T253] worker_thread+0x587/0xd30 [ 6910.268932][ T253] kthread+0x28a/0x350 [ 6910.268932][ T253] ret_from_fork+0x31/0x70 [ 6910.268932][ T253] ret_from_fork_asm+0x1a/0x30 [ 6910.268932][ T253] [ 6910.271127][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6910.271127][ T253] netdev_get_by_index+0x5e/0x80 [ 6910.271127][ T253] fib6_nh_init+0x3d8/0x1580 [ 6910.271127][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6910.271127][ T253] ip6_route_add+0x1c/0x140 [ 6910.271127][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6910.271127][ T253] inet6_addr_add+0x4f8/0xa40 [ 6910.271127][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6910.271127][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6910.271127][ T253] netlink_rcv_skb+0x130/0x360 [ 6910.271127][ T253] netlink_unicast+0x449/0x710 [ 6910.271127][ T253] netlink_sendmsg+0x723/0xbe0 [ 6910.271127][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6910.271127][ T253] ___sys_sendmsg+0xee/0x170 [ 6910.271127][ T253] __sys_sendmsg+0xcd/0x170 [ 6910.271127][ T253] do_syscall_64+0xc6/0x1e0 [ 6910.271127][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6910.271127][ T253] [ 6910.273450][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6910.273450][ T253] netdev_get_by_index+0x5e/0x80 [ 6910.273450][ T253] fib6_nh_init+0x3d8/0x1580 [ 6910.273450][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6910.273450][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6910.273450][ T253] ipv6_add_addr+0x411/0x2000 [ 6910.273450][ T253] inet6_addr_add+0x30e/0xa40 [ 6910.273450][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6910.273450][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6910.273450][ T253] netlink_rcv_skb+0x130/0x360 [ 6910.273450][ T253] netlink_unicast+0x449/0x710 [ 6910.273450][ T253] netlink_sendmsg+0x723/0xbe0 [ 6910.273450][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6910.273450][ T253] ___sys_sendmsg+0xee/0x170 [ 6910.273450][ T253] __sys_sendmsg+0xcd/0x170 [ 6910.273450][ T253] do_syscall_64+0xc6/0x1e0 [ 6910.273450][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6910.273450][ T253] [ 6910.275696][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6910.275696][ T253] netdev_get_by_index+0x5e/0x80 [ 6910.275696][ T253] fib6_nh_init+0x3d8/0x1580 [ 6910.275696][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6910.275696][ T253] ip6_route_add+0x1c/0x140 [ 6910.275696][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6910.275696][ T253] addrconf_add_dev+0xe2/0x170 [ 6910.275696][ T253] inet6_addr_add+0x12f/0xa40 [ 6910.275696][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6910.275696][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6910.275696][ T253] netlink_rcv_skb+0x130/0x360 [ 6910.275696][ T253] netlink_unicast+0x449/0x710 [ 6910.275696][ T253] netlink_sendmsg+0x723/0xbe0 [ 6910.275696][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6910.275696][ T253] ___sys_sendmsg+0xee/0x170 [ 6910.275696][ T253] __sys_sendmsg+0xcd/0x170 [ 6910.275696][ T253] do_syscall_64+0xc6/0x1e0 [ 6910.275696][ T253] [ 6910.277922][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6910.277922][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6910.277922][ T253] ipv6_find_idev+0x102/0x170 [ 6910.277922][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6910.277922][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6910.277922][ T253] netlink_rcv_skb+0x130/0x360 [ 6910.277922][ T253] netlink_unicast+0x449/0x710 [ 6910.277922][ T253] netlink_sendmsg+0x723/0xbe0 [ 6910.277922][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6910.277922][ T253] ___sys_sendmsg+0xee/0x170 [ 6910.277922][ T253] __sys_sendmsg+0xcd/0x170 [ 6910.277922][ T253] do_syscall_64+0xc6/0x1e0 [ 6910.277922][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6910.277922][ T253] [ 6910.279662][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6910.279662][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6910.279662][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6910.279662][ T253] ipv6_find_idev+0x102/0x170 [ 6910.279662][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6910.279662][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6910.279662][ T253] netlink_rcv_skb+0x130/0x360 [ 6910.279662][ T253] netlink_unicast+0x449/0x710 [ 6910.279662][ T253] netlink_sendmsg+0x723/0xbe0 [ 6910.279662][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6910.279662][ T253] ___sys_sendmsg+0xee/0x170 [ 6910.279662][ T253] __sys_sendmsg+0xcd/0x170 [ 6910.279662][ T253] do_syscall_64+0xc6/0x1e0 [ 6910.279662][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6910.279662][ T253] [ 6920.530303][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6920.530750][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6920.530750][ T253] dst_init+0x84/0x4a0 [ 6920.530750][ T253] dst_alloc+0x97/0x150 [ 6920.530750][ T253] ip6_dst_alloc+0x23/0x90 [ 6920.530750][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6920.530750][ T253] ip6_pol_route+0x56f/0x840 [ 6920.530750][ T253] fib6_rule_lookup+0x334/0x630 [ 6920.530750][ T253] ip6_route_output_flags+0x259/0x480 [ 6920.530750][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6920.530750][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6920.530750][ T253] netlink_rcv_skb+0x130/0x360 [ 6920.530750][ T253] netlink_unicast+0x449/0x710 [ 6920.530750][ T253] netlink_sendmsg+0x723/0xbe0 [ 6920.530750][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6920.530750][ T253] ___sys_sendmsg+0xee/0x170 [ 6920.530750][ T253] __sys_sendmsg+0xcd/0x170 [ 6920.530750][ T253] do_syscall_64+0xc6/0x1e0 [ 6920.530750][ T253] [ 6920.533154][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6920.533154][ T253] netdev_get_by_index+0x5e/0x80 [ 6920.533154][ T253] fib6_nh_init+0x3d8/0x1580 [ 6920.533154][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6920.533154][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6920.533154][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6920.533154][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6920.533154][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6920.533154][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6920.533154][ T253] addrconf_dad_begin+0x310/0x670 [ 6920.533154][ T253] addrconf_dad_work+0x10b/0xab0 [ 6920.533154][ T253] process_one_work+0x84d/0x18a0 [ 6920.533154][ T253] worker_thread+0x587/0xd30 [ 6920.533154][ T253] kthread+0x28a/0x350 [ 6920.533154][ T253] ret_from_fork+0x31/0x70 [ 6920.533154][ T253] ret_from_fork_asm+0x1a/0x30 [ 6920.533154][ T253] [ 6920.535503][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6920.535503][ T253] netdev_get_by_index+0x5e/0x80 [ 6920.535503][ T253] fib6_nh_init+0x3d8/0x1580 [ 6920.535503][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6920.535503][ T253] ip6_route_add+0x1c/0x140 [ 6920.535503][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6920.535503][ T253] inet6_addr_add+0x4f8/0xa40 [ 6920.535503][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6920.535503][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6920.535503][ T253] netlink_rcv_skb+0x130/0x360 [ 6920.535503][ T253] netlink_unicast+0x449/0x710 [ 6920.535503][ T253] netlink_sendmsg+0x723/0xbe0 [ 6920.535503][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6920.535503][ T253] ___sys_sendmsg+0xee/0x170 [ 6920.535503][ T253] __sys_sendmsg+0xcd/0x170 [ 6920.535503][ T253] do_syscall_64+0xc6/0x1e0 [ 6920.535503][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6920.535503][ T253] [ 6920.537969][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6920.537969][ T253] netdev_get_by_index+0x5e/0x80 [ 6920.537969][ T253] fib6_nh_init+0x3d8/0x1580 [ 6920.537969][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6920.537969][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6920.537969][ T253] ipv6_add_addr+0x411/0x2000 [ 6920.537969][ T253] inet6_addr_add+0x30e/0xa40 [ 6920.537969][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6920.537969][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6920.537969][ T253] netlink_rcv_skb+0x130/0x360 [ 6920.537969][ T253] netlink_unicast+0x449/0x710 [ 6920.537969][ T253] netlink_sendmsg+0x723/0xbe0 [ 6920.537969][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6920.537969][ T253] ___sys_sendmsg+0xee/0x170 [ 6920.537969][ T253] __sys_sendmsg+0xcd/0x170 [ 6920.537969][ T253] do_syscall_64+0xc6/0x1e0 [ 6920.537969][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6920.537969][ T253] [ 6920.540425][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6920.540425][ T253] netdev_get_by_index+0x5e/0x80 [ 6920.540425][ T253] fib6_nh_init+0x3d8/0x1580 [ 6920.540425][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6920.540425][ T253] ip6_route_add+0x1c/0x140 [ 6920.540425][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6920.540425][ T253] addrconf_add_dev+0xe2/0x170 [ 6920.540425][ T253] inet6_addr_add+0x12f/0xa40 [ 6920.540425][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6920.540425][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6920.540425][ T253] netlink_rcv_skb+0x130/0x360 [ 6920.540425][ T253] netlink_unicast+0x449/0x710 [ 6920.540425][ T253] netlink_sendmsg+0x723/0xbe0 [ 6920.540425][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6920.540425][ T253] ___sys_sendmsg+0xee/0x170 [ 6920.540425][ T253] __sys_sendmsg+0xcd/0x170 [ 6920.540425][ T253] do_syscall_64+0xc6/0x1e0 [ 6920.540425][ T253] [ 6920.542800][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6920.542800][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6920.542800][ T253] ipv6_find_idev+0x102/0x170 [ 6920.542800][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6920.542800][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6920.542800][ T253] netlink_rcv_skb+0x130/0x360 [ 6920.542800][ T253] netlink_unicast+0x449/0x710 [ 6920.542800][ T253] netlink_sendmsg+0x723/0xbe0 [ 6920.542800][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6920.542800][ T253] ___sys_sendmsg+0xee/0x170 [ 6920.542800][ T253] __sys_sendmsg+0xcd/0x170 [ 6920.542800][ T253] do_syscall_64+0xc6/0x1e0 [ 6920.542800][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6920.542800][ T253] [ 6920.544690][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6920.544690][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6920.544690][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6920.544690][ T253] ipv6_find_idev+0x102/0x170 [ 6920.544690][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6920.544690][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6920.544690][ T253] netlink_rcv_skb+0x130/0x360 [ 6920.544690][ T253] netlink_unicast+0x449/0x710 [ 6920.544690][ T253] netlink_sendmsg+0x723/0xbe0 [ 6920.544690][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6920.544690][ T253] ___sys_sendmsg+0xee/0x170 [ 6920.544690][ T253] __sys_sendmsg+0xcd/0x170 [ 6920.544690][ T253] do_syscall_64+0xc6/0x1e0 [ 6920.544690][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6920.544690][ T253] [ 6930.794379][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6930.794854][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6930.794854][ T253] dst_init+0x84/0x4a0 [ 6930.794854][ T253] dst_alloc+0x97/0x150 [ 6930.794854][ T253] ip6_dst_alloc+0x23/0x90 [ 6930.794854][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6930.794854][ T253] ip6_pol_route+0x56f/0x840 [ 6930.794854][ T253] fib6_rule_lookup+0x334/0x630 [ 6930.794854][ T253] ip6_route_output_flags+0x259/0x480 [ 6930.794854][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6930.794854][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6930.794854][ T253] netlink_rcv_skb+0x130/0x360 [ 6930.794854][ T253] netlink_unicast+0x449/0x710 [ 6930.794854][ T253] netlink_sendmsg+0x723/0xbe0 [ 6930.794854][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6930.794854][ T253] ___sys_sendmsg+0xee/0x170 [ 6930.794854][ T253] __sys_sendmsg+0xcd/0x170 [ 6930.794854][ T253] do_syscall_64+0xc6/0x1e0 [ 6930.794854][ T253] [ 6930.797178][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6930.797178][ T253] netdev_get_by_index+0x5e/0x80 [ 6930.797178][ T253] fib6_nh_init+0x3d8/0x1580 [ 6930.797178][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6930.797178][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6930.797178][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6930.797178][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6930.797178][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6930.797178][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6930.797178][ T253] addrconf_dad_begin+0x310/0x670 [ 6930.797178][ T253] addrconf_dad_work+0x10b/0xab0 [ 6930.797178][ T253] process_one_work+0x84d/0x18a0 [ 6930.797178][ T253] worker_thread+0x587/0xd30 [ 6930.797178][ T253] kthread+0x28a/0x350 [ 6930.797178][ T253] ret_from_fork+0x31/0x70 [ 6930.797178][ T253] ret_from_fork_asm+0x1a/0x30 [ 6930.797178][ T253] [ 6930.799537][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6930.799537][ T253] netdev_get_by_index+0x5e/0x80 [ 6930.799537][ T253] fib6_nh_init+0x3d8/0x1580 [ 6930.799537][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6930.799537][ T253] ip6_route_add+0x1c/0x140 [ 6930.799537][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6930.799537][ T253] inet6_addr_add+0x4f8/0xa40 [ 6930.799537][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6930.799537][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6930.799537][ T253] netlink_rcv_skb+0x130/0x360 [ 6930.799537][ T253] netlink_unicast+0x449/0x710 [ 6930.799537][ T253] netlink_sendmsg+0x723/0xbe0 [ 6930.799537][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6930.799537][ T253] ___sys_sendmsg+0xee/0x170 [ 6930.799537][ T253] __sys_sendmsg+0xcd/0x170 [ 6930.799537][ T253] do_syscall_64+0xc6/0x1e0 [ 6930.799537][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6930.799537][ T253] [ 6930.801996][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6930.801996][ T253] netdev_get_by_index+0x5e/0x80 [ 6930.801996][ T253] fib6_nh_init+0x3d8/0x1580 [ 6930.801996][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6930.801996][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6930.801996][ T253] ipv6_add_addr+0x411/0x2000 [ 6930.801996][ T253] inet6_addr_add+0x30e/0xa40 [ 6930.801996][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6930.801996][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6930.801996][ T253] netlink_rcv_skb+0x130/0x360 [ 6930.801996][ T253] netlink_unicast+0x449/0x710 [ 6930.801996][ T253] netlink_sendmsg+0x723/0xbe0 [ 6930.801996][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6930.801996][ T253] ___sys_sendmsg+0xee/0x170 [ 6930.801996][ T253] __sys_sendmsg+0xcd/0x170 [ 6930.801996][ T253] do_syscall_64+0xc6/0x1e0 [ 6930.801996][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6930.801996][ T253] [ 6930.804451][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6930.804451][ T253] netdev_get_by_index+0x5e/0x80 [ 6930.804451][ T253] fib6_nh_init+0x3d8/0x1580 [ 6930.804451][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6930.804451][ T253] ip6_route_add+0x1c/0x140 [ 6930.804451][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6930.804451][ T253] addrconf_add_dev+0xe2/0x170 [ 6930.804451][ T253] inet6_addr_add+0x12f/0xa40 [ 6930.804451][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6930.804451][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6930.804451][ T253] netlink_rcv_skb+0x130/0x360 [ 6930.804451][ T253] netlink_unicast+0x449/0x710 [ 6930.804451][ T253] netlink_sendmsg+0x723/0xbe0 [ 6930.804451][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6930.804451][ T253] ___sys_sendmsg+0xee/0x170 [ 6930.804451][ T253] __sys_sendmsg+0xcd/0x170 [ 6930.804451][ T253] do_syscall_64+0xc6/0x1e0 [ 6930.804451][ T253] [ 6930.806868][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6930.806868][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6930.806868][ T253] ipv6_find_idev+0x102/0x170 [ 6930.806868][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6930.806868][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6930.806868][ T253] netlink_rcv_skb+0x130/0x360 [ 6930.806868][ T253] netlink_unicast+0x449/0x710 [ 6930.806868][ T253] netlink_sendmsg+0x723/0xbe0 [ 6930.806868][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6930.806868][ T253] ___sys_sendmsg+0xee/0x170 [ 6930.806868][ T253] __sys_sendmsg+0xcd/0x170 [ 6930.806868][ T253] do_syscall_64+0xc6/0x1e0 [ 6930.806868][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6930.806868][ T253] [ 6930.808781][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6930.808781][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6930.808781][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6930.808781][ T253] ipv6_find_idev+0x102/0x170 [ 6930.808781][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6930.808781][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6930.808781][ T253] netlink_rcv_skb+0x130/0x360 [ 6930.808781][ T253] netlink_unicast+0x449/0x710 [ 6930.808781][ T253] netlink_sendmsg+0x723/0xbe0 [ 6930.808781][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6930.808781][ T253] ___sys_sendmsg+0xee/0x170 [ 6930.808781][ T253] __sys_sendmsg+0xcd/0x170 [ 6930.808781][ T253] do_syscall_64+0xc6/0x1e0 [ 6930.808781][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6930.808781][ T253] [ 6941.058236][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6941.058680][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6941.058680][ T253] dst_init+0x84/0x4a0 [ 6941.058680][ T253] dst_alloc+0x97/0x150 [ 6941.058680][ T253] ip6_dst_alloc+0x23/0x90 [ 6941.058680][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6941.058680][ T253] ip6_pol_route+0x56f/0x840 [ 6941.058680][ T253] fib6_rule_lookup+0x334/0x630 [ 6941.058680][ T253] ip6_route_output_flags+0x259/0x480 [ 6941.058680][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6941.058680][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6941.058680][ T253] netlink_rcv_skb+0x130/0x360 [ 6941.058680][ T253] netlink_unicast+0x449/0x710 [ 6941.058680][ T253] netlink_sendmsg+0x723/0xbe0 [ 6941.058680][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6941.058680][ T253] ___sys_sendmsg+0xee/0x170 [ 6941.058680][ T253] __sys_sendmsg+0xcd/0x170 [ 6941.058680][ T253] do_syscall_64+0xc6/0x1e0 [ 6941.058680][ T253] [ 6941.061056][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6941.061056][ T253] netdev_get_by_index+0x5e/0x80 [ 6941.061056][ T253] fib6_nh_init+0x3d8/0x1580 [ 6941.061056][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6941.061056][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6941.061056][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6941.061056][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6941.061056][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6941.061056][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6941.061056][ T253] addrconf_dad_begin+0x310/0x670 [ 6941.061056][ T253] addrconf_dad_work+0x10b/0xab0 [ 6941.061056][ T253] process_one_work+0x84d/0x18a0 [ 6941.061056][ T253] worker_thread+0x587/0xd30 [ 6941.061056][ T253] kthread+0x28a/0x350 [ 6941.061056][ T253] ret_from_fork+0x31/0x70 [ 6941.061056][ T253] ret_from_fork_asm+0x1a/0x30 [ 6941.061056][ T253] [ 6941.063370][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6941.063370][ T253] netdev_get_by_index+0x5e/0x80 [ 6941.063370][ T253] fib6_nh_init+0x3d8/0x1580 [ 6941.063370][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6941.063370][ T253] ip6_route_add+0x1c/0x140 [ 6941.063370][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6941.063370][ T253] inet6_addr_add+0x4f8/0xa40 [ 6941.063370][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6941.063370][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6941.063370][ T253] netlink_rcv_skb+0x130/0x360 [ 6941.063370][ T253] netlink_unicast+0x449/0x710 [ 6941.063370][ T253] netlink_sendmsg+0x723/0xbe0 [ 6941.063370][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6941.063370][ T253] ___sys_sendmsg+0xee/0x170 [ 6941.063370][ T253] __sys_sendmsg+0xcd/0x170 [ 6941.063370][ T253] do_syscall_64+0xc6/0x1e0 [ 6941.063370][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6941.063370][ T253] [ 6941.065790][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6941.065790][ T253] netdev_get_by_index+0x5e/0x80 [ 6941.065790][ T253] fib6_nh_init+0x3d8/0x1580 [ 6941.065790][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6941.065790][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6941.065790][ T253] ipv6_add_addr+0x411/0x2000 [ 6941.065790][ T253] inet6_addr_add+0x30e/0xa40 [ 6941.065790][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6941.065790][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6941.065790][ T253] netlink_rcv_skb+0x130/0x360 [ 6941.065790][ T253] netlink_unicast+0x449/0x710 [ 6941.065790][ T253] netlink_sendmsg+0x723/0xbe0 [ 6941.065790][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6941.065790][ T253] ___sys_sendmsg+0xee/0x170 [ 6941.065790][ T253] __sys_sendmsg+0xcd/0x170 [ 6941.065790][ T253] do_syscall_64+0xc6/0x1e0 [ 6941.065790][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6941.065790][ T253] [ 6941.068220][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6941.068220][ T253] netdev_get_by_index+0x5e/0x80 [ 6941.068220][ T253] fib6_nh_init+0x3d8/0x1580 [ 6941.068220][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6941.068220][ T253] ip6_route_add+0x1c/0x140 [ 6941.068220][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6941.068220][ T253] addrconf_add_dev+0xe2/0x170 [ 6941.068220][ T253] inet6_addr_add+0x12f/0xa40 [ 6941.068220][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6941.068220][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6941.068220][ T253] netlink_rcv_skb+0x130/0x360 [ 6941.068220][ T253] netlink_unicast+0x449/0x710 [ 6941.068220][ T253] netlink_sendmsg+0x723/0xbe0 [ 6941.068220][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6941.068220][ T253] ___sys_sendmsg+0xee/0x170 [ 6941.068220][ T253] __sys_sendmsg+0xcd/0x170 [ 6941.068220][ T253] do_syscall_64+0xc6/0x1e0 [ 6941.068220][ T253] [ 6941.070606][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6941.070606][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6941.070606][ T253] ipv6_find_idev+0x102/0x170 [ 6941.070606][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6941.070606][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6941.070606][ T253] netlink_rcv_skb+0x130/0x360 [ 6941.070606][ T253] netlink_unicast+0x449/0x710 [ 6941.070606][ T253] netlink_sendmsg+0x723/0xbe0 [ 6941.070606][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6941.070606][ T253] ___sys_sendmsg+0xee/0x170 [ 6941.070606][ T253] __sys_sendmsg+0xcd/0x170 [ 6941.070606][ T253] do_syscall_64+0xc6/0x1e0 [ 6941.070606][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6941.070606][ T253] [ 6941.072475][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6941.072475][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6941.072475][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6941.072475][ T253] ipv6_find_idev+0x102/0x170 [ 6941.072475][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6941.072475][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6941.072475][ T253] netlink_rcv_skb+0x130/0x360 [ 6941.072475][ T253] netlink_unicast+0x449/0x710 [ 6941.072475][ T253] netlink_sendmsg+0x723/0xbe0 [ 6941.072475][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6941.072475][ T253] ___sys_sendmsg+0xee/0x170 [ 6941.072475][ T253] __sys_sendmsg+0xcd/0x170 [ 6941.072475][ T253] do_syscall_64+0xc6/0x1e0 [ 6941.072475][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6941.072475][ T253] [ 6951.322307][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6951.322792][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6951.322792][ T253] dst_init+0x84/0x4a0 [ 6951.322792][ T253] dst_alloc+0x97/0x150 [ 6951.322792][ T253] ip6_dst_alloc+0x23/0x90 [ 6951.322792][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6951.322792][ T253] ip6_pol_route+0x56f/0x840 [ 6951.322792][ T253] fib6_rule_lookup+0x334/0x630 [ 6951.322792][ T253] ip6_route_output_flags+0x259/0x480 [ 6951.322792][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6951.322792][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6951.322792][ T253] netlink_rcv_skb+0x130/0x360 [ 6951.322792][ T253] netlink_unicast+0x449/0x710 [ 6951.322792][ T253] netlink_sendmsg+0x723/0xbe0 [ 6951.322792][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6951.322792][ T253] ___sys_sendmsg+0xee/0x170 [ 6951.322792][ T253] __sys_sendmsg+0xcd/0x170 [ 6951.322792][ T253] do_syscall_64+0xc6/0x1e0 [ 6951.322792][ T253] [ 6951.324985][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6951.324985][ T253] netdev_get_by_index+0x5e/0x80 [ 6951.324985][ T253] fib6_nh_init+0x3d8/0x1580 [ 6951.324985][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6951.324985][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6951.324985][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6951.324985][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6951.324985][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6951.324985][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6951.324985][ T253] addrconf_dad_begin+0x310/0x670 [ 6951.324985][ T253] addrconf_dad_work+0x10b/0xab0 [ 6951.324985][ T253] process_one_work+0x84d/0x18a0 [ 6951.324985][ T253] worker_thread+0x587/0xd30 [ 6951.324985][ T253] kthread+0x28a/0x350 [ 6951.324985][ T253] ret_from_fork+0x31/0x70 [ 6951.324985][ T253] ret_from_fork_asm+0x1a/0x30 [ 6951.324985][ T253] [ 6951.327122][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6951.327122][ T253] netdev_get_by_index+0x5e/0x80 [ 6951.327122][ T253] fib6_nh_init+0x3d8/0x1580 [ 6951.327122][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6951.327122][ T253] ip6_route_add+0x1c/0x140 [ 6951.327122][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6951.327122][ T253] inet6_addr_add+0x4f8/0xa40 [ 6951.327122][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6951.327122][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6951.327122][ T253] netlink_rcv_skb+0x130/0x360 [ 6951.327122][ T253] netlink_unicast+0x449/0x710 [ 6951.327122][ T253] netlink_sendmsg+0x723/0xbe0 [ 6951.327122][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6951.327122][ T253] ___sys_sendmsg+0xee/0x170 [ 6951.327122][ T253] __sys_sendmsg+0xcd/0x170 [ 6951.327122][ T253] do_syscall_64+0xc6/0x1e0 [ 6951.327122][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6951.327122][ T253] [ 6951.329373][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6951.329373][ T253] netdev_get_by_index+0x5e/0x80 [ 6951.329373][ T253] fib6_nh_init+0x3d8/0x1580 [ 6951.329373][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6951.329373][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6951.329373][ T253] ipv6_add_addr+0x411/0x2000 [ 6951.329373][ T253] inet6_addr_add+0x30e/0xa40 [ 6951.329373][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6951.329373][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6951.329373][ T253] netlink_rcv_skb+0x130/0x360 [ 6951.329373][ T253] netlink_unicast+0x449/0x710 [ 6951.329373][ T253] netlink_sendmsg+0x723/0xbe0 [ 6951.329373][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6951.329373][ T253] ___sys_sendmsg+0xee/0x170 [ 6951.329373][ T253] __sys_sendmsg+0xcd/0x170 [ 6951.329373][ T253] do_syscall_64+0xc6/0x1e0 [ 6951.329373][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6951.329373][ T253] [ 6951.331623][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6951.331623][ T253] netdev_get_by_index+0x5e/0x80 [ 6951.331623][ T253] fib6_nh_init+0x3d8/0x1580 [ 6951.331623][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6951.331623][ T253] ip6_route_add+0x1c/0x140 [ 6951.331623][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6951.331623][ T253] addrconf_add_dev+0xe2/0x170 [ 6951.331623][ T253] inet6_addr_add+0x12f/0xa40 [ 6951.331623][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6951.331623][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6951.331623][ T253] netlink_rcv_skb+0x130/0x360 [ 6951.331623][ T253] netlink_unicast+0x449/0x710 [ 6951.331623][ T253] netlink_sendmsg+0x723/0xbe0 [ 6951.331623][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6951.331623][ T253] ___sys_sendmsg+0xee/0x170 [ 6951.331623][ T253] __sys_sendmsg+0xcd/0x170 [ 6951.331623][ T253] do_syscall_64+0xc6/0x1e0 [ 6951.331623][ T253] [ 6951.334022][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6951.334022][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6951.334022][ T253] ipv6_find_idev+0x102/0x170 [ 6951.334022][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6951.334022][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6951.334022][ T253] netlink_rcv_skb+0x130/0x360 [ 6951.334022][ T253] netlink_unicast+0x449/0x710 [ 6951.334022][ T253] netlink_sendmsg+0x723/0xbe0 [ 6951.334022][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6951.334022][ T253] ___sys_sendmsg+0xee/0x170 [ 6951.334022][ T253] __sys_sendmsg+0xcd/0x170 [ 6951.334022][ T253] do_syscall_64+0xc6/0x1e0 [ 6951.334022][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6951.334022][ T253] [ 6951.335890][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6951.335890][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6951.335890][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6951.335890][ T253] ipv6_find_idev+0x102/0x170 [ 6951.335890][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6951.335890][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6951.335890][ T253] netlink_rcv_skb+0x130/0x360 [ 6951.335890][ T253] netlink_unicast+0x449/0x710 [ 6951.335890][ T253] netlink_sendmsg+0x723/0xbe0 [ 6951.335890][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6951.335890][ T253] ___sys_sendmsg+0xee/0x170 [ 6951.335890][ T253] __sys_sendmsg+0xcd/0x170 [ 6951.335890][ T253] do_syscall_64+0xc6/0x1e0 [ 6951.335890][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6951.335890][ T253] [ 6961.586303][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6961.586802][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6961.586802][ T253] dst_init+0x84/0x4a0 [ 6961.586802][ T253] dst_alloc+0x97/0x150 [ 6961.586802][ T253] ip6_dst_alloc+0x23/0x90 [ 6961.586802][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6961.586802][ T253] ip6_pol_route+0x56f/0x840 [ 6961.586802][ T253] fib6_rule_lookup+0x334/0x630 [ 6961.586802][ T253] ip6_route_output_flags+0x259/0x480 [ 6961.586802][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6961.586802][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6961.586802][ T253] netlink_rcv_skb+0x130/0x360 [ 6961.586802][ T253] netlink_unicast+0x449/0x710 [ 6961.586802][ T253] netlink_sendmsg+0x723/0xbe0 [ 6961.586802][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6961.586802][ T253] ___sys_sendmsg+0xee/0x170 [ 6961.586802][ T253] __sys_sendmsg+0xcd/0x170 [ 6961.586802][ T253] do_syscall_64+0xc6/0x1e0 [ 6961.586802][ T253] [ 6961.589003][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6961.589003][ T253] netdev_get_by_index+0x5e/0x80 [ 6961.589003][ T253] fib6_nh_init+0x3d8/0x1580 [ 6961.589003][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6961.589003][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6961.589003][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6961.589003][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6961.589003][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6961.589003][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6961.589003][ T253] addrconf_dad_begin+0x310/0x670 [ 6961.589003][ T253] addrconf_dad_work+0x10b/0xab0 [ 6961.589003][ T253] process_one_work+0x84d/0x18a0 [ 6961.589003][ T253] worker_thread+0x587/0xd30 [ 6961.589003][ T253] kthread+0x28a/0x350 [ 6961.589003][ T253] ret_from_fork+0x31/0x70 [ 6961.589003][ T253] ret_from_fork_asm+0x1a/0x30 [ 6961.589003][ T253] [ 6961.591149][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6961.591149][ T253] netdev_get_by_index+0x5e/0x80 [ 6961.591149][ T253] fib6_nh_init+0x3d8/0x1580 [ 6961.591149][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6961.591149][ T253] ip6_route_add+0x1c/0x140 [ 6961.591149][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6961.591149][ T253] inet6_addr_add+0x4f8/0xa40 [ 6961.591149][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6961.591149][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6961.591149][ T253] netlink_rcv_skb+0x130/0x360 [ 6961.591149][ T253] netlink_unicast+0x449/0x710 [ 6961.591149][ T253] netlink_sendmsg+0x723/0xbe0 [ 6961.591149][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6961.591149][ T253] ___sys_sendmsg+0xee/0x170 [ 6961.591149][ T253] __sys_sendmsg+0xcd/0x170 [ 6961.591149][ T253] do_syscall_64+0xc6/0x1e0 [ 6961.591149][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6961.591149][ T253] [ 6961.593389][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6961.593389][ T253] netdev_get_by_index+0x5e/0x80 [ 6961.593389][ T253] fib6_nh_init+0x3d8/0x1580 [ 6961.593389][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6961.593389][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6961.593389][ T253] ipv6_add_addr+0x411/0x2000 [ 6961.593389][ T253] inet6_addr_add+0x30e/0xa40 [ 6961.593389][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6961.593389][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6961.593389][ T253] netlink_rcv_skb+0x130/0x360 [ 6961.593389][ T253] netlink_unicast+0x449/0x710 [ 6961.593389][ T253] netlink_sendmsg+0x723/0xbe0 [ 6961.593389][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6961.593389][ T253] ___sys_sendmsg+0xee/0x170 [ 6961.593389][ T253] __sys_sendmsg+0xcd/0x170 [ 6961.593389][ T253] do_syscall_64+0xc6/0x1e0 [ 6961.593389][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6961.593389][ T253] [ 6961.595629][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6961.595629][ T253] netdev_get_by_index+0x5e/0x80 [ 6961.595629][ T253] fib6_nh_init+0x3d8/0x1580 [ 6961.595629][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6961.595629][ T253] ip6_route_add+0x1c/0x140 [ 6961.595629][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6961.595629][ T253] addrconf_add_dev+0xe2/0x170 [ 6961.595629][ T253] inet6_addr_add+0x12f/0xa40 [ 6961.595629][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6961.595629][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6961.595629][ T253] netlink_rcv_skb+0x130/0x360 [ 6961.595629][ T253] netlink_unicast+0x449/0x710 [ 6961.595629][ T253] netlink_sendmsg+0x723/0xbe0 [ 6961.595629][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6961.595629][ T253] ___sys_sendmsg+0xee/0x170 [ 6961.595629][ T253] __sys_sendmsg+0xcd/0x170 [ 6961.595629][ T253] do_syscall_64+0xc6/0x1e0 [ 6961.595629][ T253] [ 6961.597827][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6961.597827][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6961.597827][ T253] ipv6_find_idev+0x102/0x170 [ 6961.597827][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6961.597827][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6961.597827][ T253] netlink_rcv_skb+0x130/0x360 [ 6961.597827][ T253] netlink_unicast+0x449/0x710 [ 6961.597827][ T253] netlink_sendmsg+0x723/0xbe0 [ 6961.597827][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6961.597827][ T253] ___sys_sendmsg+0xee/0x170 [ 6961.597827][ T253] __sys_sendmsg+0xcd/0x170 [ 6961.597827][ T253] do_syscall_64+0xc6/0x1e0 [ 6961.597827][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6961.597827][ T253] [ 6961.599546][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6961.599546][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6961.599546][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6961.599546][ T253] ipv6_find_idev+0x102/0x170 [ 6961.599546][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6961.599546][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6961.599546][ T253] netlink_rcv_skb+0x130/0x360 [ 6961.599546][ T253] netlink_unicast+0x449/0x710 [ 6961.599546][ T253] netlink_sendmsg+0x723/0xbe0 [ 6961.599546][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6961.599546][ T253] ___sys_sendmsg+0xee/0x170 [ 6961.599546][ T253] __sys_sendmsg+0xcd/0x170 [ 6961.599546][ T253] do_syscall_64+0xc6/0x1e0 [ 6961.599546][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6961.599546][ T253] [ 6971.850321][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6971.850801][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6971.850801][ T253] dst_init+0x84/0x4a0 [ 6971.850801][ T253] dst_alloc+0x97/0x150 [ 6971.850801][ T253] ip6_dst_alloc+0x23/0x90 [ 6971.850801][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6971.850801][ T253] ip6_pol_route+0x56f/0x840 [ 6971.850801][ T253] fib6_rule_lookup+0x334/0x630 [ 6971.850801][ T253] ip6_route_output_flags+0x259/0x480 [ 6971.850801][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6971.850801][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6971.850801][ T253] netlink_rcv_skb+0x130/0x360 [ 6971.850801][ T253] netlink_unicast+0x449/0x710 [ 6971.850801][ T253] netlink_sendmsg+0x723/0xbe0 [ 6971.850801][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6971.850801][ T253] ___sys_sendmsg+0xee/0x170 [ 6971.850801][ T253] __sys_sendmsg+0xcd/0x170 [ 6971.850801][ T253] do_syscall_64+0xc6/0x1e0 [ 6971.850801][ T253] [ 6971.852970][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6971.852970][ T253] netdev_get_by_index+0x5e/0x80 [ 6971.852970][ T253] fib6_nh_init+0x3d8/0x1580 [ 6971.852970][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6971.852970][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6971.852970][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6971.852970][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6971.852970][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6971.852970][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6971.852970][ T253] addrconf_dad_begin+0x310/0x670 [ 6971.852970][ T253] addrconf_dad_work+0x10b/0xab0 [ 6971.852970][ T253] process_one_work+0x84d/0x18a0 [ 6971.852970][ T253] worker_thread+0x587/0xd30 [ 6971.852970][ T253] kthread+0x28a/0x350 [ 6971.852970][ T253] ret_from_fork+0x31/0x70 [ 6971.852970][ T253] ret_from_fork_asm+0x1a/0x30 [ 6971.852970][ T253] [ 6971.855093][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6971.855093][ T253] netdev_get_by_index+0x5e/0x80 [ 6971.855093][ T253] fib6_nh_init+0x3d8/0x1580 [ 6971.855093][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6971.855093][ T253] ip6_route_add+0x1c/0x140 [ 6971.855093][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6971.855093][ T253] inet6_addr_add+0x4f8/0xa40 [ 6971.855093][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6971.855093][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6971.855093][ T253] netlink_rcv_skb+0x130/0x360 [ 6971.855093][ T253] netlink_unicast+0x449/0x710 [ 6971.855093][ T253] netlink_sendmsg+0x723/0xbe0 [ 6971.855093][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6971.855093][ T253] ___sys_sendmsg+0xee/0x170 [ 6971.855093][ T253] __sys_sendmsg+0xcd/0x170 [ 6971.855093][ T253] do_syscall_64+0xc6/0x1e0 [ 6971.855093][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6971.855093][ T253] [ 6971.857365][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6971.857365][ T253] netdev_get_by_index+0x5e/0x80 [ 6971.857365][ T253] fib6_nh_init+0x3d8/0x1580 [ 6971.857365][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6971.857365][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6971.857365][ T253] ipv6_add_addr+0x411/0x2000 [ 6971.857365][ T253] inet6_addr_add+0x30e/0xa40 [ 6971.857365][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6971.857365][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6971.857365][ T253] netlink_rcv_skb+0x130/0x360 [ 6971.857365][ T253] netlink_unicast+0x449/0x710 [ 6971.857365][ T253] netlink_sendmsg+0x723/0xbe0 [ 6971.857365][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6971.857365][ T253] ___sys_sendmsg+0xee/0x170 [ 6971.857365][ T253] __sys_sendmsg+0xcd/0x170 [ 6971.857365][ T253] do_syscall_64+0xc6/0x1e0 [ 6971.857365][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6971.857365][ T253] [ 6971.859620][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6971.859620][ T253] netdev_get_by_index+0x5e/0x80 [ 6971.859620][ T253] fib6_nh_init+0x3d8/0x1580 [ 6971.859620][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6971.859620][ T253] ip6_route_add+0x1c/0x140 [ 6971.859620][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6971.859620][ T253] addrconf_add_dev+0xe2/0x170 [ 6971.859620][ T253] inet6_addr_add+0x12f/0xa40 [ 6971.859620][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6971.859620][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6971.859620][ T253] netlink_rcv_skb+0x130/0x360 [ 6971.859620][ T253] netlink_unicast+0x449/0x710 [ 6971.859620][ T253] netlink_sendmsg+0x723/0xbe0 [ 6971.859620][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6971.859620][ T253] ___sys_sendmsg+0xee/0x170 [ 6971.859620][ T253] __sys_sendmsg+0xcd/0x170 [ 6971.859620][ T253] do_syscall_64+0xc6/0x1e0 [ 6971.859620][ T253] [ 6971.861830][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6971.861830][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6971.861830][ T253] ipv6_find_idev+0x102/0x170 [ 6971.861830][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6971.861830][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6971.861830][ T253] netlink_rcv_skb+0x130/0x360 [ 6971.861830][ T253] netlink_unicast+0x449/0x710 [ 6971.861830][ T253] netlink_sendmsg+0x723/0xbe0 [ 6971.861830][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6971.861830][ T253] ___sys_sendmsg+0xee/0x170 [ 6971.861830][ T253] __sys_sendmsg+0xcd/0x170 [ 6971.861830][ T253] do_syscall_64+0xc6/0x1e0 [ 6971.861830][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6971.861830][ T253] [ 6971.863555][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6971.863555][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6971.863555][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6971.863555][ T253] ipv6_find_idev+0x102/0x170 [ 6971.863555][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6971.863555][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6971.863555][ T253] netlink_rcv_skb+0x130/0x360 [ 6971.863555][ T253] netlink_unicast+0x449/0x710 [ 6971.863555][ T253] netlink_sendmsg+0x723/0xbe0 [ 6971.863555][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6971.863555][ T253] ___sys_sendmsg+0xee/0x170 [ 6971.863555][ T253] __sys_sendmsg+0xcd/0x170 [ 6971.863555][ T253] do_syscall_64+0xc6/0x1e0 [ 6971.863555][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6971.863555][ T253] [ 6982.114334][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6982.114811][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6982.114811][ T253] dst_init+0x84/0x4a0 [ 6982.114811][ T253] dst_alloc+0x97/0x150 [ 6982.114811][ T253] ip6_dst_alloc+0x23/0x90 [ 6982.114811][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6982.114811][ T253] ip6_pol_route+0x56f/0x840 [ 6982.114811][ T253] fib6_rule_lookup+0x334/0x630 [ 6982.114811][ T253] ip6_route_output_flags+0x259/0x480 [ 6982.114811][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6982.114811][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6982.114811][ T253] netlink_rcv_skb+0x130/0x360 [ 6982.114811][ T253] netlink_unicast+0x449/0x710 [ 6982.114811][ T253] netlink_sendmsg+0x723/0xbe0 [ 6982.114811][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6982.114811][ T253] ___sys_sendmsg+0xee/0x170 [ 6982.114811][ T253] __sys_sendmsg+0xcd/0x170 [ 6982.114811][ T253] do_syscall_64+0xc6/0x1e0 [ 6982.114811][ T253] [ 6982.116995][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6982.116995][ T253] netdev_get_by_index+0x5e/0x80 [ 6982.116995][ T253] fib6_nh_init+0x3d8/0x1580 [ 6982.116995][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6982.116995][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6982.116995][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6982.116995][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6982.116995][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6982.116995][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6982.116995][ T253] addrconf_dad_begin+0x310/0x670 [ 6982.116995][ T253] addrconf_dad_work+0x10b/0xab0 [ 6982.116995][ T253] process_one_work+0x84d/0x18a0 [ 6982.116995][ T253] worker_thread+0x587/0xd30 [ 6982.116995][ T253] kthread+0x28a/0x350 [ 6982.116995][ T253] ret_from_fork+0x31/0x70 [ 6982.116995][ T253] ret_from_fork_asm+0x1a/0x30 [ 6982.116995][ T253] [ 6982.119144][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6982.119144][ T253] netdev_get_by_index+0x5e/0x80 [ 6982.119144][ T253] fib6_nh_init+0x3d8/0x1580 [ 6982.119144][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6982.119144][ T253] ip6_route_add+0x1c/0x140 [ 6982.119144][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6982.119144][ T253] inet6_addr_add+0x4f8/0xa40 [ 6982.119144][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6982.119144][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6982.119144][ T253] netlink_rcv_skb+0x130/0x360 [ 6982.119144][ T253] netlink_unicast+0x449/0x710 [ 6982.119144][ T253] netlink_sendmsg+0x723/0xbe0 [ 6982.119144][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6982.119144][ T253] ___sys_sendmsg+0xee/0x170 [ 6982.119144][ T253] __sys_sendmsg+0xcd/0x170 [ 6982.119144][ T253] do_syscall_64+0xc6/0x1e0 [ 6982.119144][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6982.119144][ T253] [ 6982.121396][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6982.121396][ T253] netdev_get_by_index+0x5e/0x80 [ 6982.121396][ T253] fib6_nh_init+0x3d8/0x1580 [ 6982.121396][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6982.121396][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6982.121396][ T253] ipv6_add_addr+0x411/0x2000 [ 6982.121396][ T253] inet6_addr_add+0x30e/0xa40 [ 6982.121396][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6982.121396][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6982.121396][ T253] netlink_rcv_skb+0x130/0x360 [ 6982.121396][ T253] netlink_unicast+0x449/0x710 [ 6982.121396][ T253] netlink_sendmsg+0x723/0xbe0 [ 6982.121396][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6982.121396][ T253] ___sys_sendmsg+0xee/0x170 [ 6982.121396][ T253] __sys_sendmsg+0xcd/0x170 [ 6982.121396][ T253] do_syscall_64+0xc6/0x1e0 [ 6982.121396][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6982.121396][ T253] [ 6982.123637][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6982.123637][ T253] netdev_get_by_index+0x5e/0x80 [ 6982.123637][ T253] fib6_nh_init+0x3d8/0x1580 [ 6982.123637][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6982.123637][ T253] ip6_route_add+0x1c/0x140 [ 6982.123637][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6982.123637][ T253] addrconf_add_dev+0xe2/0x170 [ 6982.123637][ T253] inet6_addr_add+0x12f/0xa40 [ 6982.123637][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6982.123637][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6982.123637][ T253] netlink_rcv_skb+0x130/0x360 [ 6982.123637][ T253] netlink_unicast+0x449/0x710 [ 6982.123637][ T253] netlink_sendmsg+0x723/0xbe0 [ 6982.123637][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6982.123637][ T253] ___sys_sendmsg+0xee/0x170 [ 6982.123637][ T253] __sys_sendmsg+0xcd/0x170 [ 6982.123637][ T253] do_syscall_64+0xc6/0x1e0 [ 6982.123637][ T253] [ 6982.125836][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6982.125836][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6982.125836][ T253] ipv6_find_idev+0x102/0x170 [ 6982.125836][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6982.125836][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6982.125836][ T253] netlink_rcv_skb+0x130/0x360 [ 6982.125836][ T253] netlink_unicast+0x449/0x710 [ 6982.125836][ T253] netlink_sendmsg+0x723/0xbe0 [ 6982.125836][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6982.125836][ T253] ___sys_sendmsg+0xee/0x170 [ 6982.125836][ T253] __sys_sendmsg+0xcd/0x170 [ 6982.125836][ T253] do_syscall_64+0xc6/0x1e0 [ 6982.125836][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6982.125836][ T253] [ 6982.127568][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6982.127568][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6982.127568][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6982.127568][ T253] ipv6_find_idev+0x102/0x170 [ 6982.127568][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6982.127568][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6982.127568][ T253] netlink_rcv_skb+0x130/0x360 [ 6982.127568][ T253] netlink_unicast+0x449/0x710 [ 6982.127568][ T253] netlink_sendmsg+0x723/0xbe0 [ 6982.127568][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6982.127568][ T253] ___sys_sendmsg+0xee/0x170 [ 6982.127568][ T253] __sys_sendmsg+0xcd/0x170 [ 6982.127568][ T253] do_syscall_64+0xc6/0x1e0 [ 6982.127568][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6982.127568][ T253] [ 6992.378243][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6992.378757][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6992.378757][ T253] dst_init+0x84/0x4a0 [ 6992.378757][ T253] dst_alloc+0x97/0x150 [ 6992.378757][ T253] ip6_dst_alloc+0x23/0x90 [ 6992.378757][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6992.378757][ T253] ip6_pol_route+0x56f/0x840 [ 6992.378757][ T253] fib6_rule_lookup+0x334/0x630 [ 6992.378757][ T253] ip6_route_output_flags+0x259/0x480 [ 6992.378757][ T253] inet6_rtm_getroute+0x980/0xf70 [ 6992.378757][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 6992.378757][ T253] netlink_rcv_skb+0x130/0x360 [ 6992.378757][ T253] netlink_unicast+0x449/0x710 [ 6992.378757][ T253] netlink_sendmsg+0x723/0xbe0 [ 6992.378757][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6992.378757][ T253] ___sys_sendmsg+0xee/0x170 [ 6992.378757][ T253] __sys_sendmsg+0xcd/0x170 [ 6992.378757][ T253] do_syscall_64+0xc6/0x1e0 [ 6992.378757][ T253] [ 6992.380938][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6992.380938][ T253] netdev_get_by_index+0x5e/0x80 [ 6992.380938][ T253] fib6_nh_init+0x3d8/0x1580 [ 6992.380938][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6992.380938][ T253] addrconf_f6i_alloc+0x265/0x560 [ 6992.380938][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6992.380938][ T253] addrconf_join_anycast+0x1c0/0x220 [ 6992.380938][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6992.380938][ T253] addrconf_dad_completed+0x12b/0xe20 [ 6992.380938][ T253] addrconf_dad_begin+0x310/0x670 [ 6992.380938][ T253] addrconf_dad_work+0x10b/0xab0 [ 6992.380938][ T253] process_one_work+0x84d/0x18a0 [ 6992.380938][ T253] worker_thread+0x587/0xd30 [ 6992.380938][ T253] kthread+0x28a/0x350 [ 6992.380938][ T253] ret_from_fork+0x31/0x70 [ 6992.380938][ T253] ret_from_fork_asm+0x1a/0x30 [ 6992.380938][ T253] [ 6992.383072][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6992.383072][ T253] netdev_get_by_index+0x5e/0x80 [ 6992.383072][ T253] fib6_nh_init+0x3d8/0x1580 [ 6992.383072][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6992.383072][ T253] ip6_route_add+0x1c/0x140 [ 6992.383072][ T253] addrconf_prefix_route+0x2a6/0x430 [ 6992.383072][ T253] inet6_addr_add+0x4f8/0xa40 [ 6992.383072][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6992.383072][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6992.383072][ T253] netlink_rcv_skb+0x130/0x360 [ 6992.383072][ T253] netlink_unicast+0x449/0x710 [ 6992.383072][ T253] netlink_sendmsg+0x723/0xbe0 [ 6992.383072][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6992.383072][ T253] ___sys_sendmsg+0xee/0x170 [ 6992.383072][ T253] __sys_sendmsg+0xcd/0x170 [ 6992.383072][ T253] do_syscall_64+0xc6/0x1e0 [ 6992.383072][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6992.383072][ T253] [ 6992.385301][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6992.385301][ T253] netdev_get_by_index+0x5e/0x80 [ 6992.385301][ T253] fib6_nh_init+0x3d8/0x1580 [ 6992.385301][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6992.385301][ T253] addrconf_f6i_alloc+0x315/0x560 [ 6992.385301][ T253] ipv6_add_addr+0x411/0x2000 [ 6992.385301][ T253] inet6_addr_add+0x30e/0xa40 [ 6992.385301][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6992.385301][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6992.385301][ T253] netlink_rcv_skb+0x130/0x360 [ 6992.385301][ T253] netlink_unicast+0x449/0x710 [ 6992.385301][ T253] netlink_sendmsg+0x723/0xbe0 [ 6992.385301][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6992.385301][ T253] ___sys_sendmsg+0xee/0x170 [ 6992.385301][ T253] __sys_sendmsg+0xcd/0x170 [ 6992.385301][ T253] do_syscall_64+0xc6/0x1e0 [ 6992.385301][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6992.385301][ T253] [ 6992.387586][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6992.387586][ T253] netdev_get_by_index+0x5e/0x80 [ 6992.387586][ T253] fib6_nh_init+0x3d8/0x1580 [ 6992.387586][ T253] ip6_route_info_create+0xf18/0x17d0 [ 6992.387586][ T253] ip6_route_add+0x1c/0x140 [ 6992.387586][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 6992.387586][ T253] addrconf_add_dev+0xe2/0x170 [ 6992.387586][ T253] inet6_addr_add+0x12f/0xa40 [ 6992.387586][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 6992.387586][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6992.387586][ T253] netlink_rcv_skb+0x130/0x360 [ 6992.387586][ T253] netlink_unicast+0x449/0x710 [ 6992.387586][ T253] netlink_sendmsg+0x723/0xbe0 [ 6992.387586][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6992.387586][ T253] ___sys_sendmsg+0xee/0x170 [ 6992.387586][ T253] __sys_sendmsg+0xcd/0x170 [ 6992.387586][ T253] do_syscall_64+0xc6/0x1e0 [ 6992.387586][ T253] [ 6992.389782][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6992.389782][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 6992.389782][ T253] ipv6_find_idev+0x102/0x170 [ 6992.389782][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6992.389782][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6992.389782][ T253] netlink_rcv_skb+0x130/0x360 [ 6992.389782][ T253] netlink_unicast+0x449/0x710 [ 6992.389782][ T253] netlink_sendmsg+0x723/0xbe0 [ 6992.389782][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6992.389782][ T253] ___sys_sendmsg+0xee/0x170 [ 6992.389782][ T253] __sys_sendmsg+0xcd/0x170 [ 6992.389782][ T253] do_syscall_64+0xc6/0x1e0 [ 6992.389782][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6992.389782][ T253] [ 6992.391500][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 6992.391500][ T253] neigh_parms_alloc+0x1e5/0x510 [ 6992.391500][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 6992.391500][ T253] ipv6_find_idev+0x102/0x170 [ 6992.391500][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 6992.391500][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6992.391500][ T253] netlink_rcv_skb+0x130/0x360 [ 6992.391500][ T253] netlink_unicast+0x449/0x710 [ 6992.391500][ T253] netlink_sendmsg+0x723/0xbe0 [ 6992.391500][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 6992.391500][ T253] ___sys_sendmsg+0xee/0x170 [ 6992.391500][ T253] __sys_sendmsg+0xcd/0x170 [ 6992.391500][ T253] do_syscall_64+0xc6/0x1e0 [ 6992.391500][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6992.391500][ T253] [ 7002.490306][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7002.490781][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7002.490781][ T253] dst_init+0x84/0x4a0 [ 7002.490781][ T253] dst_alloc+0x97/0x150 [ 7002.490781][ T253] ip6_dst_alloc+0x23/0x90 [ 7002.490781][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7002.490781][ T253] ip6_pol_route+0x56f/0x840 [ 7002.490781][ T253] fib6_rule_lookup+0x334/0x630 [ 7002.490781][ T253] ip6_route_output_flags+0x259/0x480 [ 7002.490781][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7002.490781][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7002.490781][ T253] netlink_rcv_skb+0x130/0x360 [ 7002.490781][ T253] netlink_unicast+0x449/0x710 [ 7002.490781][ T253] netlink_sendmsg+0x723/0xbe0 [ 7002.490781][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7002.490781][ T253] ___sys_sendmsg+0xee/0x170 [ 7002.490781][ T253] __sys_sendmsg+0xcd/0x170 [ 7002.490781][ T253] do_syscall_64+0xc6/0x1e0 [ 7002.490781][ T253] [ 7002.492945][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7002.492945][ T253] netdev_get_by_index+0x5e/0x80 [ 7002.492945][ T253] fib6_nh_init+0x3d8/0x1580 [ 7002.492945][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7002.492945][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7002.492945][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7002.492945][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7002.492945][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7002.492945][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7002.492945][ T253] addrconf_dad_begin+0x310/0x670 [ 7002.492945][ T253] addrconf_dad_work+0x10b/0xab0 [ 7002.492945][ T253] process_one_work+0x84d/0x18a0 [ 7002.492945][ T253] worker_thread+0x587/0xd30 [ 7002.492945][ T253] kthread+0x28a/0x350 [ 7002.492945][ T253] ret_from_fork+0x31/0x70 [ 7002.492945][ T253] ret_from_fork_asm+0x1a/0x30 [ 7002.492945][ T253] [ 7002.495085][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7002.495085][ T253] netdev_get_by_index+0x5e/0x80 [ 7002.495085][ T253] fib6_nh_init+0x3d8/0x1580 [ 7002.495085][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7002.495085][ T253] ip6_route_add+0x1c/0x140 [ 7002.495085][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7002.495085][ T253] inet6_addr_add+0x4f8/0xa40 [ 7002.495085][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7002.495085][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7002.495085][ T253] netlink_rcv_skb+0x130/0x360 [ 7002.495085][ T253] netlink_unicast+0x449/0x710 [ 7002.495085][ T253] netlink_sendmsg+0x723/0xbe0 [ 7002.495085][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7002.495085][ T253] ___sys_sendmsg+0xee/0x170 [ 7002.495085][ T253] __sys_sendmsg+0xcd/0x170 [ 7002.495085][ T253] do_syscall_64+0xc6/0x1e0 [ 7002.495085][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7002.495085][ T253] [ 7002.497348][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7002.497348][ T253] netdev_get_by_index+0x5e/0x80 [ 7002.497348][ T253] fib6_nh_init+0x3d8/0x1580 [ 7002.497348][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7002.497348][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7002.497348][ T253] ipv6_add_addr+0x411/0x2000 [ 7002.497348][ T253] inet6_addr_add+0x30e/0xa40 [ 7002.497348][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7002.497348][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7002.497348][ T253] netlink_rcv_skb+0x130/0x360 [ 7002.497348][ T253] netlink_unicast+0x449/0x710 [ 7002.497348][ T253] netlink_sendmsg+0x723/0xbe0 [ 7002.497348][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7002.497348][ T253] ___sys_sendmsg+0xee/0x170 [ 7002.497348][ T253] __sys_sendmsg+0xcd/0x170 [ 7002.497348][ T253] do_syscall_64+0xc6/0x1e0 [ 7002.497348][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7002.497348][ T253] [ 7002.499589][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7002.499589][ T253] netdev_get_by_index+0x5e/0x80 [ 7002.499589][ T253] fib6_nh_init+0x3d8/0x1580 [ 7002.499589][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7002.499589][ T253] ip6_route_add+0x1c/0x140 [ 7002.499589][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7002.499589][ T253] addrconf_add_dev+0xe2/0x170 [ 7002.499589][ T253] inet6_addr_add+0x12f/0xa40 [ 7002.499589][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7002.499589][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7002.499589][ T253] netlink_rcv_skb+0x130/0x360 [ 7002.499589][ T253] netlink_unicast+0x449/0x710 [ 7002.499589][ T253] netlink_sendmsg+0x723/0xbe0 [ 7002.499589][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7002.499589][ T253] ___sys_sendmsg+0xee/0x170 [ 7002.499589][ T253] __sys_sendmsg+0xcd/0x170 [ 7002.499589][ T253] do_syscall_64+0xc6/0x1e0 [ 7002.499589][ T253] [ 7002.502342][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7002.502342][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7002.502342][ T253] ipv6_find_idev+0x102/0x170 [ 7002.502342][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7002.502342][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7002.502342][ T253] netlink_rcv_skb+0x130/0x360 [ 7002.502342][ T253] netlink_unicast+0x449/0x710 [ 7002.502342][ T253] netlink_sendmsg+0x723/0xbe0 [ 7002.502342][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7002.502342][ T253] ___sys_sendmsg+0xee/0x170 [ 7002.502342][ T253] __sys_sendmsg+0xcd/0x170 [ 7002.502342][ T253] do_syscall_64+0xc6/0x1e0 [ 7002.502342][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7002.502342][ T253] [ 7002.504059][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7002.504059][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7002.504059][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7002.504059][ T253] ipv6_find_idev+0x102/0x170 [ 7002.504059][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7002.504059][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7002.504059][ T253] netlink_rcv_skb+0x130/0x360 [ 7002.504059][ T253] netlink_unicast+0x449/0x710 [ 7002.504059][ T253] netlink_sendmsg+0x723/0xbe0 [ 7002.504059][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7002.504059][ T253] ___sys_sendmsg+0xee/0x170 [ 7002.504059][ T253] __sys_sendmsg+0xcd/0x170 [ 7002.504059][ T253] do_syscall_64+0xc6/0x1e0 [ 7002.504059][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7002.504059][ T253] [ 7012.522304][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7012.522778][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7012.522778][ T253] dst_init+0x84/0x4a0 [ 7012.522778][ T253] dst_alloc+0x97/0x150 [ 7012.522778][ T253] ip6_dst_alloc+0x23/0x90 [ 7012.522778][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7012.522778][ T253] ip6_pol_route+0x56f/0x840 [ 7012.522778][ T253] fib6_rule_lookup+0x334/0x630 [ 7012.522778][ T253] ip6_route_output_flags+0x259/0x480 [ 7012.522778][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7012.522778][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7012.522778][ T253] netlink_rcv_skb+0x130/0x360 [ 7012.522778][ T253] netlink_unicast+0x449/0x710 [ 7012.522778][ T253] netlink_sendmsg+0x723/0xbe0 [ 7012.522778][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7012.522778][ T253] ___sys_sendmsg+0xee/0x170 [ 7012.522778][ T253] __sys_sendmsg+0xcd/0x170 [ 7012.522778][ T253] do_syscall_64+0xc6/0x1e0 [ 7012.522778][ T253] [ 7012.524984][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7012.524984][ T253] netdev_get_by_index+0x5e/0x80 [ 7012.524984][ T253] fib6_nh_init+0x3d8/0x1580 [ 7012.524984][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7012.524984][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7012.524984][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7012.524984][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7012.524984][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7012.524984][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7012.524984][ T253] addrconf_dad_begin+0x310/0x670 [ 7012.524984][ T253] addrconf_dad_work+0x10b/0xab0 [ 7012.524984][ T253] process_one_work+0x84d/0x18a0 [ 7012.524984][ T253] worker_thread+0x587/0xd30 [ 7012.524984][ T253] kthread+0x28a/0x350 [ 7012.524984][ T253] ret_from_fork+0x31/0x70 [ 7012.524984][ T253] ret_from_fork_asm+0x1a/0x30 [ 7012.524984][ T253] [ 7012.527505][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7012.527505][ T253] netdev_get_by_index+0x5e/0x80 [ 7012.527505][ T253] fib6_nh_init+0x3d8/0x1580 [ 7012.527505][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7012.527505][ T253] ip6_route_add+0x1c/0x140 [ 7012.527505][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7012.527505][ T253] inet6_addr_add+0x4f8/0xa40 [ 7012.527505][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7012.527505][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7012.527505][ T253] netlink_rcv_skb+0x130/0x360 [ 7012.527505][ T253] netlink_unicast+0x449/0x710 [ 7012.527505][ T253] netlink_sendmsg+0x723/0xbe0 [ 7012.527505][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7012.527505][ T253] ___sys_sendmsg+0xee/0x170 [ 7012.527505][ T253] __sys_sendmsg+0xcd/0x170 [ 7012.527505][ T253] do_syscall_64+0xc6/0x1e0 [ 7012.527505][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7012.527505][ T253] [ 7012.529748][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7012.529748][ T253] netdev_get_by_index+0x5e/0x80 [ 7012.529748][ T253] fib6_nh_init+0x3d8/0x1580 [ 7012.529748][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7012.529748][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7012.529748][ T253] ipv6_add_addr+0x411/0x2000 [ 7012.529748][ T253] inet6_addr_add+0x30e/0xa40 [ 7012.529748][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7012.529748][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7012.529748][ T253] netlink_rcv_skb+0x130/0x360 [ 7012.529748][ T253] netlink_unicast+0x449/0x710 [ 7012.529748][ T253] netlink_sendmsg+0x723/0xbe0 [ 7012.529748][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7012.529748][ T253] ___sys_sendmsg+0xee/0x170 [ 7012.529748][ T253] __sys_sendmsg+0xcd/0x170 [ 7012.529748][ T253] do_syscall_64+0xc6/0x1e0 [ 7012.529748][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7012.529748][ T253] [ 7012.531948][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7012.531948][ T253] netdev_get_by_index+0x5e/0x80 [ 7012.531948][ T253] fib6_nh_init+0x3d8/0x1580 [ 7012.531948][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7012.531948][ T253] ip6_route_add+0x1c/0x140 [ 7012.531948][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7012.531948][ T253] addrconf_add_dev+0xe2/0x170 [ 7012.531948][ T253] inet6_addr_add+0x12f/0xa40 [ 7012.531948][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7012.531948][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7012.531948][ T253] netlink_rcv_skb+0x130/0x360 [ 7012.531948][ T253] netlink_unicast+0x449/0x710 [ 7012.531948][ T253] netlink_sendmsg+0x723/0xbe0 [ 7012.531948][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7012.531948][ T253] ___sys_sendmsg+0xee/0x170 [ 7012.531948][ T253] __sys_sendmsg+0xcd/0x170 [ 7012.531948][ T253] do_syscall_64+0xc6/0x1e0 [ 7012.531948][ T253] [ 7012.534151][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7012.534151][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7012.534151][ T253] ipv6_find_idev+0x102/0x170 [ 7012.534151][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7012.534151][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7012.534151][ T253] netlink_rcv_skb+0x130/0x360 [ 7012.534151][ T253] netlink_unicast+0x449/0x710 [ 7012.534151][ T253] netlink_sendmsg+0x723/0xbe0 [ 7012.534151][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7012.534151][ T253] ___sys_sendmsg+0xee/0x170 [ 7012.534151][ T253] __sys_sendmsg+0xcd/0x170 [ 7012.534151][ T253] do_syscall_64+0xc6/0x1e0 [ 7012.534151][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7012.534151][ T253] [ 7012.535887][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7012.535887][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7012.535887][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7012.535887][ T253] ipv6_find_idev+0x102/0x170 [ 7012.535887][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7012.535887][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7012.535887][ T253] netlink_rcv_skb+0x130/0x360 [ 7012.535887][ T253] netlink_unicast+0x449/0x710 [ 7012.535887][ T253] netlink_sendmsg+0x723/0xbe0 [ 7012.535887][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7012.535887][ T253] ___sys_sendmsg+0xee/0x170 [ 7012.535887][ T253] __sys_sendmsg+0xcd/0x170 [ 7012.535887][ T253] do_syscall_64+0xc6/0x1e0 [ 7012.535887][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7012.535887][ T253] [ 7022.778242][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7022.778729][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7022.778729][ T253] dst_init+0x84/0x4a0 [ 7022.778729][ T253] dst_alloc+0x97/0x150 [ 7022.778729][ T253] ip6_dst_alloc+0x23/0x90 [ 7022.778729][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7022.778729][ T253] ip6_pol_route+0x56f/0x840 [ 7022.778729][ T253] fib6_rule_lookup+0x334/0x630 [ 7022.778729][ T253] ip6_route_output_flags+0x259/0x480 [ 7022.778729][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7022.778729][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7022.778729][ T253] netlink_rcv_skb+0x130/0x360 [ 7022.778729][ T253] netlink_unicast+0x449/0x710 [ 7022.778729][ T253] netlink_sendmsg+0x723/0xbe0 [ 7022.778729][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7022.778729][ T253] ___sys_sendmsg+0xee/0x170 [ 7022.778729][ T253] __sys_sendmsg+0xcd/0x170 [ 7022.778729][ T253] do_syscall_64+0xc6/0x1e0 [ 7022.778729][ T253] [ 7022.780916][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7022.780916][ T253] netdev_get_by_index+0x5e/0x80 [ 7022.780916][ T253] fib6_nh_init+0x3d8/0x1580 [ 7022.780916][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7022.780916][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7022.780916][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7022.780916][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7022.780916][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7022.780916][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7022.780916][ T253] addrconf_dad_begin+0x310/0x670 [ 7022.780916][ T253] addrconf_dad_work+0x10b/0xab0 [ 7022.780916][ T253] process_one_work+0x84d/0x18a0 [ 7022.780916][ T253] worker_thread+0x587/0xd30 [ 7022.780916][ T253] kthread+0x28a/0x350 [ 7022.780916][ T253] ret_from_fork+0x31/0x70 [ 7022.780916][ T253] ret_from_fork_asm+0x1a/0x30 [ 7022.780916][ T253] [ 7022.783599][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7022.783599][ T253] netdev_get_by_index+0x5e/0x80 [ 7022.783599][ T253] fib6_nh_init+0x3d8/0x1580 [ 7022.783599][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7022.783599][ T253] ip6_route_add+0x1c/0x140 [ 7022.783599][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7022.783599][ T253] inet6_addr_add+0x4f8/0xa40 [ 7022.783599][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7022.783599][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7022.783599][ T253] netlink_rcv_skb+0x130/0x360 [ 7022.783599][ T253] netlink_unicast+0x449/0x710 [ 7022.783599][ T253] netlink_sendmsg+0x723/0xbe0 [ 7022.783599][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7022.783599][ T253] ___sys_sendmsg+0xee/0x170 [ 7022.783599][ T253] __sys_sendmsg+0xcd/0x170 [ 7022.783599][ T253] do_syscall_64+0xc6/0x1e0 [ 7022.783599][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7022.783599][ T253] [ 7022.785781][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7022.785781][ T253] netdev_get_by_index+0x5e/0x80 [ 7022.785781][ T253] fib6_nh_init+0x3d8/0x1580 [ 7022.785781][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7022.785781][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7022.785781][ T253] ipv6_add_addr+0x411/0x2000 [ 7022.785781][ T253] inet6_addr_add+0x30e/0xa40 [ 7022.785781][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7022.785781][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7022.785781][ T253] netlink_rcv_skb+0x130/0x360 [ 7022.785781][ T253] netlink_unicast+0x449/0x710 [ 7022.785781][ T253] netlink_sendmsg+0x723/0xbe0 [ 7022.785781][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7022.785781][ T253] ___sys_sendmsg+0xee/0x170 [ 7022.785781][ T253] __sys_sendmsg+0xcd/0x170 [ 7022.785781][ T253] do_syscall_64+0xc6/0x1e0 [ 7022.785781][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7022.785781][ T253] [ 7022.788014][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7022.788014][ T253] netdev_get_by_index+0x5e/0x80 [ 7022.788014][ T253] fib6_nh_init+0x3d8/0x1580 [ 7022.788014][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7022.788014][ T253] ip6_route_add+0x1c/0x140 [ 7022.788014][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7022.788014][ T253] addrconf_add_dev+0xe2/0x170 [ 7022.788014][ T253] inet6_addr_add+0x12f/0xa40 [ 7022.788014][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7022.788014][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7022.788014][ T253] netlink_rcv_skb+0x130/0x360 [ 7022.788014][ T253] netlink_unicast+0x449/0x710 [ 7022.788014][ T253] netlink_sendmsg+0x723/0xbe0 [ 7022.788014][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7022.788014][ T253] ___sys_sendmsg+0xee/0x170 [ 7022.788014][ T253] __sys_sendmsg+0xcd/0x170 [ 7022.788014][ T253] do_syscall_64+0xc6/0x1e0 [ 7022.788014][ T253] [ 7022.790572][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7022.790572][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7022.790572][ T253] ipv6_find_idev+0x102/0x170 [ 7022.790572][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7022.790572][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7022.790572][ T253] netlink_rcv_skb+0x130/0x360 [ 7022.790572][ T253] netlink_unicast+0x449/0x710 [ 7022.790572][ T253] netlink_sendmsg+0x723/0xbe0 [ 7022.790572][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7022.790572][ T253] ___sys_sendmsg+0xee/0x170 [ 7022.790572][ T253] __sys_sendmsg+0xcd/0x170 [ 7022.790572][ T253] do_syscall_64+0xc6/0x1e0 [ 7022.790572][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7022.790572][ T253] [ 7022.792307][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7022.792307][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7022.792307][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7022.792307][ T253] ipv6_find_idev+0x102/0x170 [ 7022.792307][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7022.792307][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7022.792307][ T253] netlink_rcv_skb+0x130/0x360 [ 7022.792307][ T253] netlink_unicast+0x449/0x710 [ 7022.792307][ T253] netlink_sendmsg+0x723/0xbe0 [ 7022.792307][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7022.792307][ T253] ___sys_sendmsg+0xee/0x170 [ 7022.792307][ T253] __sys_sendmsg+0xcd/0x170 [ 7022.792307][ T253] do_syscall_64+0xc6/0x1e0 [ 7022.792307][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7022.792307][ T253] [ 7033.034299][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7033.034772][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7033.034772][ T253] dst_init+0x84/0x4a0 [ 7033.034772][ T253] dst_alloc+0x97/0x150 [ 7033.034772][ T253] ip6_dst_alloc+0x23/0x90 [ 7033.034772][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7033.034772][ T253] ip6_pol_route+0x56f/0x840 [ 7033.034772][ T253] fib6_rule_lookup+0x334/0x630 [ 7033.034772][ T253] ip6_route_output_flags+0x259/0x480 [ 7033.034772][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7033.034772][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7033.034772][ T253] netlink_rcv_skb+0x130/0x360 [ 7033.034772][ T253] netlink_unicast+0x449/0x710 [ 7033.034772][ T253] netlink_sendmsg+0x723/0xbe0 [ 7033.034772][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7033.034772][ T253] ___sys_sendmsg+0xee/0x170 [ 7033.034772][ T253] __sys_sendmsg+0xcd/0x170 [ 7033.034772][ T253] do_syscall_64+0xc6/0x1e0 [ 7033.034772][ T253] [ 7033.036972][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7033.036972][ T253] netdev_get_by_index+0x5e/0x80 [ 7033.036972][ T253] fib6_nh_init+0x3d8/0x1580 [ 7033.036972][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7033.036972][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7033.036972][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7033.036972][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7033.036972][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7033.036972][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7033.036972][ T253] addrconf_dad_begin+0x310/0x670 [ 7033.036972][ T253] addrconf_dad_work+0x10b/0xab0 [ 7033.036972][ T253] process_one_work+0x84d/0x18a0 [ 7033.036972][ T253] worker_thread+0x587/0xd30 [ 7033.036972][ T253] kthread+0x28a/0x350 [ 7033.036972][ T253] ret_from_fork+0x31/0x70 [ 7033.036972][ T253] ret_from_fork_asm+0x1a/0x30 [ 7033.036972][ T253] [ 7033.039125][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7033.039125][ T253] netdev_get_by_index+0x5e/0x80 [ 7033.039125][ T253] fib6_nh_init+0x3d8/0x1580 [ 7033.039125][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7033.039125][ T253] ip6_route_add+0x1c/0x140 [ 7033.039125][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7033.039125][ T253] inet6_addr_add+0x4f8/0xa40 [ 7033.039125][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7033.039125][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7033.039125][ T253] netlink_rcv_skb+0x130/0x360 [ 7033.039125][ T253] netlink_unicast+0x449/0x710 [ 7033.039125][ T253] netlink_sendmsg+0x723/0xbe0 [ 7033.039125][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7033.039125][ T253] ___sys_sendmsg+0xee/0x170 [ 7033.039125][ T253] __sys_sendmsg+0xcd/0x170 [ 7033.039125][ T253] do_syscall_64+0xc6/0x1e0 [ 7033.039125][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7033.039125][ T253] [ 7033.041355][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7033.041355][ T253] netdev_get_by_index+0x5e/0x80 [ 7033.041355][ T253] fib6_nh_init+0x3d8/0x1580 [ 7033.041355][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7033.041355][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7033.041355][ T253] ipv6_add_addr+0x411/0x2000 [ 7033.041355][ T253] inet6_addr_add+0x30e/0xa40 [ 7033.041355][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7033.041355][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7033.041355][ T253] netlink_rcv_skb+0x130/0x360 [ 7033.041355][ T253] netlink_unicast+0x449/0x710 [ 7033.041355][ T253] netlink_sendmsg+0x723/0xbe0 [ 7033.041355][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7033.041355][ T253] ___sys_sendmsg+0xee/0x170 [ 7033.041355][ T253] __sys_sendmsg+0xcd/0x170 [ 7033.041355][ T253] do_syscall_64+0xc6/0x1e0 [ 7033.041355][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7033.041355][ T253] [ 7033.043585][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7033.043585][ T253] netdev_get_by_index+0x5e/0x80 [ 7033.043585][ T253] fib6_nh_init+0x3d8/0x1580 [ 7033.043585][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7033.043585][ T253] ip6_route_add+0x1c/0x140 [ 7033.043585][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7033.043585][ T253] addrconf_add_dev+0xe2/0x170 [ 7033.043585][ T253] inet6_addr_add+0x12f/0xa40 [ 7033.043585][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7033.043585][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7033.043585][ T253] netlink_rcv_skb+0x130/0x360 [ 7033.043585][ T253] netlink_unicast+0x449/0x710 [ 7033.043585][ T253] netlink_sendmsg+0x723/0xbe0 [ 7033.043585][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7033.043585][ T253] ___sys_sendmsg+0xee/0x170 [ 7033.043585][ T253] __sys_sendmsg+0xcd/0x170 [ 7033.043585][ T253] do_syscall_64+0xc6/0x1e0 [ 7033.043585][ T253] [ 7033.045782][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7033.045782][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7033.045782][ T253] ipv6_find_idev+0x102/0x170 [ 7033.045782][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7033.045782][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7033.045782][ T253] netlink_rcv_skb+0x130/0x360 [ 7033.045782][ T253] netlink_unicast+0x449/0x710 [ 7033.045782][ T253] netlink_sendmsg+0x723/0xbe0 [ 7033.045782][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7033.045782][ T253] ___sys_sendmsg+0xee/0x170 [ 7033.045782][ T253] __sys_sendmsg+0xcd/0x170 [ 7033.045782][ T253] do_syscall_64+0xc6/0x1e0 [ 7033.045782][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7033.045782][ T253] [ 7033.047504][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7033.047504][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7033.047504][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7033.047504][ T253] ipv6_find_idev+0x102/0x170 [ 7033.047504][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7033.047504][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7033.047504][ T253] netlink_rcv_skb+0x130/0x360 [ 7033.047504][ T253] netlink_unicast+0x449/0x710 [ 7033.047504][ T253] netlink_sendmsg+0x723/0xbe0 [ 7033.047504][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7033.047504][ T253] ___sys_sendmsg+0xee/0x170 [ 7033.047504][ T253] __sys_sendmsg+0xcd/0x170 [ 7033.047504][ T253] do_syscall_64+0xc6/0x1e0 [ 7033.047504][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7033.047504][ T253] [ 7043.338429][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7043.338941][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7043.338941][ T253] dst_init+0x84/0x4a0 [ 7043.338941][ T253] dst_alloc+0x97/0x150 [ 7043.338941][ T253] ip6_dst_alloc+0x23/0x90 [ 7043.338941][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7043.338941][ T253] ip6_pol_route+0x56f/0x840 [ 7043.338941][ T253] fib6_rule_lookup+0x334/0x630 [ 7043.338941][ T253] ip6_route_output_flags+0x259/0x480 [ 7043.338941][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7043.338941][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7043.338941][ T253] netlink_rcv_skb+0x130/0x360 [ 7043.338941][ T253] netlink_unicast+0x449/0x710 [ 7043.338941][ T253] netlink_sendmsg+0x723/0xbe0 [ 7043.338941][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7043.338941][ T253] ___sys_sendmsg+0xee/0x170 [ 7043.338941][ T253] __sys_sendmsg+0xcd/0x170 [ 7043.338941][ T253] do_syscall_64+0xc6/0x1e0 [ 7043.338941][ T253] [ 7043.341127][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7043.341127][ T253] netdev_get_by_index+0x5e/0x80 [ 7043.341127][ T253] fib6_nh_init+0x3d8/0x1580 [ 7043.341127][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7043.341127][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7043.341127][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7043.341127][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7043.341127][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7043.341127][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7043.341127][ T253] addrconf_dad_begin+0x310/0x670 [ 7043.341127][ T253] addrconf_dad_work+0x10b/0xab0 [ 7043.341127][ T253] process_one_work+0x84d/0x18a0 [ 7043.341127][ T253] worker_thread+0x587/0xd30 [ 7043.341127][ T253] kthread+0x28a/0x350 [ 7043.341127][ T253] ret_from_fork+0x31/0x70 [ 7043.341127][ T253] ret_from_fork_asm+0x1a/0x30 [ 7043.341127][ T253] [ 7043.343280][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7043.343280][ T253] netdev_get_by_index+0x5e/0x80 [ 7043.343280][ T253] fib6_nh_init+0x3d8/0x1580 [ 7043.343280][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7043.343280][ T253] ip6_route_add+0x1c/0x140 [ 7043.343280][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7043.343280][ T253] inet6_addr_add+0x4f8/0xa40 [ 7043.343280][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7043.343280][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7043.343280][ T253] netlink_rcv_skb+0x130/0x360 [ 7043.343280][ T253] netlink_unicast+0x449/0x710 [ 7043.343280][ T253] netlink_sendmsg+0x723/0xbe0 [ 7043.343280][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7043.343280][ T253] ___sys_sendmsg+0xee/0x170 [ 7043.343280][ T253] __sys_sendmsg+0xcd/0x170 [ 7043.343280][ T253] do_syscall_64+0xc6/0x1e0 [ 7043.343280][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7043.343280][ T253] [ 7043.345506][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7043.345506][ T253] netdev_get_by_index+0x5e/0x80 [ 7043.345506][ T253] fib6_nh_init+0x3d8/0x1580 [ 7043.345506][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7043.345506][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7043.345506][ T253] ipv6_add_addr+0x411/0x2000 [ 7043.345506][ T253] inet6_addr_add+0x30e/0xa40 [ 7043.345506][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7043.345506][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7043.345506][ T253] netlink_rcv_skb+0x130/0x360 [ 7043.345506][ T253] netlink_unicast+0x449/0x710 [ 7043.345506][ T253] netlink_sendmsg+0x723/0xbe0 [ 7043.345506][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7043.345506][ T253] ___sys_sendmsg+0xee/0x170 [ 7043.345506][ T253] __sys_sendmsg+0xcd/0x170 [ 7043.345506][ T253] do_syscall_64+0xc6/0x1e0 [ 7043.345506][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7043.345506][ T253] [ 7043.347761][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7043.347761][ T253] netdev_get_by_index+0x5e/0x80 [ 7043.347761][ T253] fib6_nh_init+0x3d8/0x1580 [ 7043.347761][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7043.347761][ T253] ip6_route_add+0x1c/0x140 [ 7043.347761][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7043.347761][ T253] addrconf_add_dev+0xe2/0x170 [ 7043.347761][ T253] inet6_addr_add+0x12f/0xa40 [ 7043.347761][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7043.347761][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7043.347761][ T253] netlink_rcv_skb+0x130/0x360 [ 7043.347761][ T253] netlink_unicast+0x449/0x710 [ 7043.347761][ T253] netlink_sendmsg+0x723/0xbe0 [ 7043.347761][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7043.347761][ T253] ___sys_sendmsg+0xee/0x170 [ 7043.347761][ T253] __sys_sendmsg+0xcd/0x170 [ 7043.347761][ T253] do_syscall_64+0xc6/0x1e0 [ 7043.347761][ T253] [ 7043.349969][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7043.349969][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7043.349969][ T253] ipv6_find_idev+0x102/0x170 [ 7043.349969][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7043.349969][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7043.349969][ T253] netlink_rcv_skb+0x130/0x360 [ 7043.349969][ T253] netlink_unicast+0x449/0x710 [ 7043.349969][ T253] netlink_sendmsg+0x723/0xbe0 [ 7043.349969][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7043.349969][ T253] ___sys_sendmsg+0xee/0x170 [ 7043.349969][ T253] __sys_sendmsg+0xcd/0x170 [ 7043.349969][ T253] do_syscall_64+0xc6/0x1e0 [ 7043.349969][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7043.349969][ T253] [ 7043.351697][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7043.351697][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7043.351697][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7043.351697][ T253] ipv6_find_idev+0x102/0x170 [ 7043.351697][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7043.351697][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7043.351697][ T253] netlink_rcv_skb+0x130/0x360 [ 7043.351697][ T253] netlink_unicast+0x449/0x710 [ 7043.351697][ T253] netlink_sendmsg+0x723/0xbe0 [ 7043.351697][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7043.351697][ T253] ___sys_sendmsg+0xee/0x170 [ 7043.351697][ T253] __sys_sendmsg+0xcd/0x170 [ 7043.351697][ T253] do_syscall_64+0xc6/0x1e0 [ 7043.351697][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7043.351697][ T253] [ 7053.594335][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7053.594833][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7053.594833][ T253] dst_init+0x84/0x4a0 [ 7053.594833][ T253] dst_alloc+0x97/0x150 [ 7053.594833][ T253] ip6_dst_alloc+0x23/0x90 [ 7053.594833][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7053.594833][ T253] ip6_pol_route+0x56f/0x840 [ 7053.594833][ T253] fib6_rule_lookup+0x334/0x630 [ 7053.594833][ T253] ip6_route_output_flags+0x259/0x480 [ 7053.594833][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7053.594833][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7053.594833][ T253] netlink_rcv_skb+0x130/0x360 [ 7053.594833][ T253] netlink_unicast+0x449/0x710 [ 7053.594833][ T253] netlink_sendmsg+0x723/0xbe0 [ 7053.594833][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7053.594833][ T253] ___sys_sendmsg+0xee/0x170 [ 7053.594833][ T253] __sys_sendmsg+0xcd/0x170 [ 7053.594833][ T253] do_syscall_64+0xc6/0x1e0 [ 7053.594833][ T253] [ 7053.597089][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7053.597089][ T253] netdev_get_by_index+0x5e/0x80 [ 7053.597089][ T253] fib6_nh_init+0x3d8/0x1580 [ 7053.597089][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7053.597089][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7053.597089][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7053.597089][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7053.597089][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7053.597089][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7053.597089][ T253] addrconf_dad_begin+0x310/0x670 [ 7053.597089][ T253] addrconf_dad_work+0x10b/0xab0 [ 7053.597089][ T253] process_one_work+0x84d/0x18a0 [ 7053.597089][ T253] worker_thread+0x587/0xd30 [ 7053.597089][ T253] kthread+0x28a/0x350 [ 7053.597089][ T253] ret_from_fork+0x31/0x70 [ 7053.597089][ T253] ret_from_fork_asm+0x1a/0x30 [ 7053.597089][ T253] [ 7053.599245][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7053.599245][ T253] netdev_get_by_index+0x5e/0x80 [ 7053.599245][ T253] fib6_nh_init+0x3d8/0x1580 [ 7053.599245][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7053.599245][ T253] ip6_route_add+0x1c/0x140 [ 7053.599245][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7053.599245][ T253] inet6_addr_add+0x4f8/0xa40 [ 7053.599245][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7053.599245][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7053.599245][ T253] netlink_rcv_skb+0x130/0x360 [ 7053.599245][ T253] netlink_unicast+0x449/0x710 [ 7053.599245][ T253] netlink_sendmsg+0x723/0xbe0 [ 7053.599245][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7053.599245][ T253] ___sys_sendmsg+0xee/0x170 [ 7053.599245][ T253] __sys_sendmsg+0xcd/0x170 [ 7053.599245][ T253] do_syscall_64+0xc6/0x1e0 [ 7053.599245][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7053.599245][ T253] [ 7053.601539][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7053.601539][ T253] netdev_get_by_index+0x5e/0x80 [ 7053.601539][ T253] fib6_nh_init+0x3d8/0x1580 [ 7053.601539][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7053.601539][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7053.601539][ T253] ipv6_add_addr+0x411/0x2000 [ 7053.601539][ T253] inet6_addr_add+0x30e/0xa40 [ 7053.601539][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7053.601539][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7053.601539][ T253] netlink_rcv_skb+0x130/0x360 [ 7053.601539][ T253] netlink_unicast+0x449/0x710 [ 7053.601539][ T253] netlink_sendmsg+0x723/0xbe0 [ 7053.601539][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7053.601539][ T253] ___sys_sendmsg+0xee/0x170 [ 7053.601539][ T253] __sys_sendmsg+0xcd/0x170 [ 7053.601539][ T253] do_syscall_64+0xc6/0x1e0 [ 7053.601539][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7053.601539][ T253] [ 7053.603821][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7053.603821][ T253] netdev_get_by_index+0x5e/0x80 [ 7053.603821][ T253] fib6_nh_init+0x3d8/0x1580 [ 7053.603821][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7053.603821][ T253] ip6_route_add+0x1c/0x140 [ 7053.603821][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7053.603821][ T253] addrconf_add_dev+0xe2/0x170 [ 7053.603821][ T253] inet6_addr_add+0x12f/0xa40 [ 7053.603821][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7053.603821][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7053.603821][ T253] netlink_rcv_skb+0x130/0x360 [ 7053.603821][ T253] netlink_unicast+0x449/0x710 [ 7053.603821][ T253] netlink_sendmsg+0x723/0xbe0 [ 7053.603821][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7053.603821][ T253] ___sys_sendmsg+0xee/0x170 [ 7053.603821][ T253] __sys_sendmsg+0xcd/0x170 [ 7053.603821][ T253] do_syscall_64+0xc6/0x1e0 [ 7053.603821][ T253] [ 7053.606058][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7053.606058][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7053.606058][ T253] ipv6_find_idev+0x102/0x170 [ 7053.606058][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7053.606058][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7053.606058][ T253] netlink_rcv_skb+0x130/0x360 [ 7053.606058][ T253] netlink_unicast+0x449/0x710 [ 7053.606058][ T253] netlink_sendmsg+0x723/0xbe0 [ 7053.606058][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7053.606058][ T253] ___sys_sendmsg+0xee/0x170 [ 7053.606058][ T253] __sys_sendmsg+0xcd/0x170 [ 7053.606058][ T253] do_syscall_64+0xc6/0x1e0 [ 7053.606058][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7053.606058][ T253] [ 7053.607807][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7053.607807][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7053.607807][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7053.607807][ T253] ipv6_find_idev+0x102/0x170 [ 7053.607807][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7053.607807][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7053.607807][ T253] netlink_rcv_skb+0x130/0x360 [ 7053.607807][ T253] netlink_unicast+0x449/0x710 [ 7053.607807][ T253] netlink_sendmsg+0x723/0xbe0 [ 7053.607807][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7053.607807][ T253] ___sys_sendmsg+0xee/0x170 [ 7053.607807][ T253] __sys_sendmsg+0xcd/0x170 [ 7053.607807][ T253] do_syscall_64+0xc6/0x1e0 [ 7053.607807][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7053.607807][ T253] [ 7063.858305][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7063.858795][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7063.858795][ T253] dst_init+0x84/0x4a0 [ 7063.858795][ T253] dst_alloc+0x97/0x150 [ 7063.858795][ T253] ip6_dst_alloc+0x23/0x90 [ 7063.858795][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7063.858795][ T253] ip6_pol_route+0x56f/0x840 [ 7063.858795][ T253] fib6_rule_lookup+0x334/0x630 [ 7063.858795][ T253] ip6_route_output_flags+0x259/0x480 [ 7063.858795][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7063.858795][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7063.858795][ T253] netlink_rcv_skb+0x130/0x360 [ 7063.858795][ T253] netlink_unicast+0x449/0x710 [ 7063.858795][ T253] netlink_sendmsg+0x723/0xbe0 [ 7063.858795][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7063.858795][ T253] ___sys_sendmsg+0xee/0x170 [ 7063.858795][ T253] __sys_sendmsg+0xcd/0x170 [ 7063.858795][ T253] do_syscall_64+0xc6/0x1e0 [ 7063.858795][ T253] [ 7063.860977][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7063.860977][ T253] netdev_get_by_index+0x5e/0x80 [ 7063.860977][ T253] fib6_nh_init+0x3d8/0x1580 [ 7063.860977][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7063.860977][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7063.860977][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7063.860977][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7063.860977][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7063.860977][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7063.860977][ T253] addrconf_dad_begin+0x310/0x670 [ 7063.860977][ T253] addrconf_dad_work+0x10b/0xab0 [ 7063.860977][ T253] process_one_work+0x84d/0x18a0 [ 7063.860977][ T253] worker_thread+0x587/0xd30 [ 7063.860977][ T253] kthread+0x28a/0x350 [ 7063.860977][ T253] ret_from_fork+0x31/0x70 [ 7063.860977][ T253] ret_from_fork_asm+0x1a/0x30 [ 7063.860977][ T253] [ 7063.863093][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7063.863093][ T253] netdev_get_by_index+0x5e/0x80 [ 7063.863093][ T253] fib6_nh_init+0x3d8/0x1580 [ 7063.863093][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7063.863093][ T253] ip6_route_add+0x1c/0x140 [ 7063.863093][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7063.863093][ T253] inet6_addr_add+0x4f8/0xa40 [ 7063.863093][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7063.863093][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7063.863093][ T253] netlink_rcv_skb+0x130/0x360 [ 7063.863093][ T253] netlink_unicast+0x449/0x710 [ 7063.863093][ T253] netlink_sendmsg+0x723/0xbe0 [ 7063.863093][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7063.863093][ T253] ___sys_sendmsg+0xee/0x170 [ 7063.863093][ T253] __sys_sendmsg+0xcd/0x170 [ 7063.863093][ T253] do_syscall_64+0xc6/0x1e0 [ 7063.863093][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7063.863093][ T253] [ 7063.865341][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7063.865341][ T253] netdev_get_by_index+0x5e/0x80 [ 7063.865341][ T253] fib6_nh_init+0x3d8/0x1580 [ 7063.865341][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7063.865341][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7063.865341][ T253] ipv6_add_addr+0x411/0x2000 [ 7063.865341][ T253] inet6_addr_add+0x30e/0xa40 [ 7063.865341][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7063.865341][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7063.865341][ T253] netlink_rcv_skb+0x130/0x360 [ 7063.865341][ T253] netlink_unicast+0x449/0x710 [ 7063.865341][ T253] netlink_sendmsg+0x723/0xbe0 [ 7063.865341][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7063.865341][ T253] ___sys_sendmsg+0xee/0x170 [ 7063.865341][ T253] __sys_sendmsg+0xcd/0x170 [ 7063.865341][ T253] do_syscall_64+0xc6/0x1e0 [ 7063.865341][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7063.865341][ T253] [ 7063.867610][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7063.867610][ T253] netdev_get_by_index+0x5e/0x80 [ 7063.867610][ T253] fib6_nh_init+0x3d8/0x1580 [ 7063.867610][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7063.867610][ T253] ip6_route_add+0x1c/0x140 [ 7063.867610][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7063.867610][ T253] addrconf_add_dev+0xe2/0x170 [ 7063.867610][ T253] inet6_addr_add+0x12f/0xa40 [ 7063.867610][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7063.867610][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7063.867610][ T253] netlink_rcv_skb+0x130/0x360 [ 7063.867610][ T253] netlink_unicast+0x449/0x710 [ 7063.867610][ T253] netlink_sendmsg+0x723/0xbe0 [ 7063.867610][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7063.867610][ T253] ___sys_sendmsg+0xee/0x170 [ 7063.867610][ T253] __sys_sendmsg+0xcd/0x170 [ 7063.867610][ T253] do_syscall_64+0xc6/0x1e0 [ 7063.867610][ T253] [ 7063.869830][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7063.869830][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7063.869830][ T253] ipv6_find_idev+0x102/0x170 [ 7063.869830][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7063.869830][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7063.869830][ T253] netlink_rcv_skb+0x130/0x360 [ 7063.869830][ T253] netlink_unicast+0x449/0x710 [ 7063.869830][ T253] netlink_sendmsg+0x723/0xbe0 [ 7063.869830][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7063.869830][ T253] ___sys_sendmsg+0xee/0x170 [ 7063.869830][ T253] __sys_sendmsg+0xcd/0x170 [ 7063.869830][ T253] do_syscall_64+0xc6/0x1e0 [ 7063.869830][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7063.869830][ T253] [ 7063.871567][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7063.871567][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7063.871567][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7063.871567][ T253] ipv6_find_idev+0x102/0x170 [ 7063.871567][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7063.871567][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7063.871567][ T253] netlink_rcv_skb+0x130/0x360 [ 7063.871567][ T253] netlink_unicast+0x449/0x710 [ 7063.871567][ T253] netlink_sendmsg+0x723/0xbe0 [ 7063.871567][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7063.871567][ T253] ___sys_sendmsg+0xee/0x170 [ 7063.871567][ T253] __sys_sendmsg+0xcd/0x170 [ 7063.871567][ T253] do_syscall_64+0xc6/0x1e0 [ 7063.871567][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7063.871567][ T253] [ 7074.002300][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7074.002789][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7074.002789][ T253] dst_init+0x84/0x4a0 [ 7074.002789][ T253] dst_alloc+0x97/0x150 [ 7074.002789][ T253] ip6_dst_alloc+0x23/0x90 [ 7074.002789][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7074.002789][ T253] ip6_pol_route+0x56f/0x840 [ 7074.002789][ T253] fib6_rule_lookup+0x334/0x630 [ 7074.002789][ T253] ip6_route_output_flags+0x259/0x480 [ 7074.002789][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7074.002789][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7074.002789][ T253] netlink_rcv_skb+0x130/0x360 [ 7074.002789][ T253] netlink_unicast+0x449/0x710 [ 7074.002789][ T253] netlink_sendmsg+0x723/0xbe0 [ 7074.002789][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7074.002789][ T253] ___sys_sendmsg+0xee/0x170 [ 7074.002789][ T253] __sys_sendmsg+0xcd/0x170 [ 7074.002789][ T253] do_syscall_64+0xc6/0x1e0 [ 7074.002789][ T253] [ 7074.004987][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7074.004987][ T253] netdev_get_by_index+0x5e/0x80 [ 7074.004987][ T253] fib6_nh_init+0x3d8/0x1580 [ 7074.004987][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7074.004987][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7074.004987][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7074.004987][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7074.004987][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7074.004987][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7074.004987][ T253] addrconf_dad_begin+0x310/0x670 [ 7074.004987][ T253] addrconf_dad_work+0x10b/0xab0 [ 7074.004987][ T253] process_one_work+0x84d/0x18a0 [ 7074.004987][ T253] worker_thread+0x587/0xd30 [ 7074.004987][ T253] kthread+0x28a/0x350 [ 7074.004987][ T253] ret_from_fork+0x31/0x70 [ 7074.004987][ T253] ret_from_fork_asm+0x1a/0x30 [ 7074.004987][ T253] [ 7074.007163][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7074.007163][ T253] netdev_get_by_index+0x5e/0x80 [ 7074.007163][ T253] fib6_nh_init+0x3d8/0x1580 [ 7074.007163][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7074.007163][ T253] ip6_route_add+0x1c/0x140 [ 7074.007163][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7074.007163][ T253] inet6_addr_add+0x4f8/0xa40 [ 7074.007163][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7074.007163][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7074.007163][ T253] netlink_rcv_skb+0x130/0x360 [ 7074.007163][ T253] netlink_unicast+0x449/0x710 [ 7074.007163][ T253] netlink_sendmsg+0x723/0xbe0 [ 7074.007163][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7074.007163][ T253] ___sys_sendmsg+0xee/0x170 [ 7074.007163][ T253] __sys_sendmsg+0xcd/0x170 [ 7074.007163][ T253] do_syscall_64+0xc6/0x1e0 [ 7074.007163][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7074.007163][ T253] [ 7074.009384][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7074.009384][ T253] netdev_get_by_index+0x5e/0x80 [ 7074.009384][ T253] fib6_nh_init+0x3d8/0x1580 [ 7074.009384][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7074.009384][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7074.009384][ T253] ipv6_add_addr+0x411/0x2000 [ 7074.009384][ T253] inet6_addr_add+0x30e/0xa40 [ 7074.009384][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7074.009384][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7074.009384][ T253] netlink_rcv_skb+0x130/0x360 [ 7074.009384][ T253] netlink_unicast+0x449/0x710 [ 7074.009384][ T253] netlink_sendmsg+0x723/0xbe0 [ 7074.009384][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7074.009384][ T253] ___sys_sendmsg+0xee/0x170 [ 7074.009384][ T253] __sys_sendmsg+0xcd/0x170 [ 7074.009384][ T253] do_syscall_64+0xc6/0x1e0 [ 7074.009384][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7074.009384][ T253] [ 7074.011614][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7074.011614][ T253] netdev_get_by_index+0x5e/0x80 [ 7074.011614][ T253] fib6_nh_init+0x3d8/0x1580 [ 7074.011614][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7074.011614][ T253] ip6_route_add+0x1c/0x140 [ 7074.011614][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7074.011614][ T253] addrconf_add_dev+0xe2/0x170 [ 7074.011614][ T253] inet6_addr_add+0x12f/0xa40 [ 7074.011614][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7074.011614][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7074.011614][ T253] netlink_rcv_skb+0x130/0x360 [ 7074.011614][ T253] netlink_unicast+0x449/0x710 [ 7074.011614][ T253] netlink_sendmsg+0x723/0xbe0 [ 7074.011614][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7074.011614][ T253] ___sys_sendmsg+0xee/0x170 [ 7074.011614][ T253] __sys_sendmsg+0xcd/0x170 [ 7074.011614][ T253] do_syscall_64+0xc6/0x1e0 [ 7074.011614][ T253] [ 7074.013749][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7074.013749][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7074.013749][ T253] ipv6_find_idev+0x102/0x170 [ 7074.013749][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7074.013749][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7074.013749][ T253] netlink_rcv_skb+0x130/0x360 [ 7074.013749][ T253] netlink_unicast+0x449/0x710 [ 7074.013749][ T253] netlink_sendmsg+0x723/0xbe0 [ 7074.013749][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7074.013749][ T253] ___sys_sendmsg+0xee/0x170 [ 7074.013749][ T253] __sys_sendmsg+0xcd/0x170 [ 7074.013749][ T253] do_syscall_64+0xc6/0x1e0 [ 7074.013749][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7074.013749][ T253] [ 7074.015426][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7074.015426][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7074.015426][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7074.015426][ T253] ipv6_find_idev+0x102/0x170 [ 7074.015426][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7074.015426][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7074.015426][ T253] netlink_rcv_skb+0x130/0x360 [ 7074.015426][ T253] netlink_unicast+0x449/0x710 [ 7074.015426][ T253] netlink_sendmsg+0x723/0xbe0 [ 7074.015426][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7074.015426][ T253] ___sys_sendmsg+0xee/0x170 [ 7074.015426][ T253] __sys_sendmsg+0xcd/0x170 [ 7074.015426][ T253] do_syscall_64+0xc6/0x1e0 [ 7074.015426][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7074.015426][ T253] [ 7084.130294][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7084.130846][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7084.130846][ T253] dst_init+0x84/0x4a0 [ 7084.130846][ T253] dst_alloc+0x97/0x150 [ 7084.130846][ T253] ip6_dst_alloc+0x23/0x90 [ 7084.130846][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7084.130846][ T253] ip6_pol_route+0x56f/0x840 [ 7084.130846][ T253] fib6_rule_lookup+0x334/0x630 [ 7084.130846][ T253] ip6_route_output_flags+0x259/0x480 [ 7084.130846][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7084.130846][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7084.130846][ T253] netlink_rcv_skb+0x130/0x360 [ 7084.130846][ T253] netlink_unicast+0x449/0x710 [ 7084.130846][ T253] netlink_sendmsg+0x723/0xbe0 [ 7084.130846][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7084.130846][ T253] ___sys_sendmsg+0xee/0x170 [ 7084.130846][ T253] __sys_sendmsg+0xcd/0x170 [ 7084.130846][ T253] do_syscall_64+0xc6/0x1e0 [ 7084.130846][ T253] [ 7084.133056][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7084.133056][ T253] netdev_get_by_index+0x5e/0x80 [ 7084.133056][ T253] fib6_nh_init+0x3d8/0x1580 [ 7084.133056][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7084.133056][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7084.133056][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7084.133056][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7084.133056][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7084.133056][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7084.133056][ T253] addrconf_dad_begin+0x310/0x670 [ 7084.133056][ T253] addrconf_dad_work+0x10b/0xab0 [ 7084.133056][ T253] process_one_work+0x84d/0x18a0 [ 7084.133056][ T253] worker_thread+0x587/0xd30 [ 7084.133056][ T253] kthread+0x28a/0x350 [ 7084.133056][ T253] ret_from_fork+0x31/0x70 [ 7084.133056][ T253] ret_from_fork_asm+0x1a/0x30 [ 7084.133056][ T253] [ 7084.135201][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7084.135201][ T253] netdev_get_by_index+0x5e/0x80 [ 7084.135201][ T253] fib6_nh_init+0x3d8/0x1580 [ 7084.135201][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7084.135201][ T253] ip6_route_add+0x1c/0x140 [ 7084.135201][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7084.135201][ T253] inet6_addr_add+0x4f8/0xa40 [ 7084.135201][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7084.135201][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7084.135201][ T253] netlink_rcv_skb+0x130/0x360 [ 7084.135201][ T253] netlink_unicast+0x449/0x710 [ 7084.135201][ T253] netlink_sendmsg+0x723/0xbe0 [ 7084.135201][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7084.135201][ T253] ___sys_sendmsg+0xee/0x170 [ 7084.135201][ T253] __sys_sendmsg+0xcd/0x170 [ 7084.135201][ T253] do_syscall_64+0xc6/0x1e0 [ 7084.135201][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7084.135201][ T253] [ 7084.137451][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7084.137451][ T253] netdev_get_by_index+0x5e/0x80 [ 7084.137451][ T253] fib6_nh_init+0x3d8/0x1580 [ 7084.137451][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7084.137451][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7084.137451][ T253] ipv6_add_addr+0x411/0x2000 [ 7084.137451][ T253] inet6_addr_add+0x30e/0xa40 [ 7084.137451][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7084.137451][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7084.137451][ T253] netlink_rcv_skb+0x130/0x360 [ 7084.137451][ T253] netlink_unicast+0x449/0x710 [ 7084.137451][ T253] netlink_sendmsg+0x723/0xbe0 [ 7084.137451][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7084.137451][ T253] ___sys_sendmsg+0xee/0x170 [ 7084.137451][ T253] __sys_sendmsg+0xcd/0x170 [ 7084.137451][ T253] do_syscall_64+0xc6/0x1e0 [ 7084.137451][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7084.137451][ T253] [ 7084.139693][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7084.139693][ T253] netdev_get_by_index+0x5e/0x80 [ 7084.139693][ T253] fib6_nh_init+0x3d8/0x1580 [ 7084.139693][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7084.139693][ T253] ip6_route_add+0x1c/0x140 [ 7084.139693][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7084.139693][ T253] addrconf_add_dev+0xe2/0x170 [ 7084.139693][ T253] inet6_addr_add+0x12f/0xa40 [ 7084.139693][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7084.139693][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7084.139693][ T253] netlink_rcv_skb+0x130/0x360 [ 7084.139693][ T253] netlink_unicast+0x449/0x710 [ 7084.139693][ T253] netlink_sendmsg+0x723/0xbe0 [ 7084.139693][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7084.139693][ T253] ___sys_sendmsg+0xee/0x170 [ 7084.139693][ T253] __sys_sendmsg+0xcd/0x170 [ 7084.139693][ T253] do_syscall_64+0xc6/0x1e0 [ 7084.139693][ T253] [ 7084.141898][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7084.141898][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7084.141898][ T253] ipv6_find_idev+0x102/0x170 [ 7084.141898][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7084.141898][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7084.141898][ T253] netlink_rcv_skb+0x130/0x360 [ 7084.141898][ T253] netlink_unicast+0x449/0x710 [ 7084.141898][ T253] netlink_sendmsg+0x723/0xbe0 [ 7084.141898][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7084.141898][ T253] ___sys_sendmsg+0xee/0x170 [ 7084.141898][ T253] __sys_sendmsg+0xcd/0x170 [ 7084.141898][ T253] do_syscall_64+0xc6/0x1e0 [ 7084.141898][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7084.141898][ T253] [ 7084.143642][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7084.143642][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7084.143642][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7084.143642][ T253] ipv6_find_idev+0x102/0x170 [ 7084.143642][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7084.143642][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7084.143642][ T253] netlink_rcv_skb+0x130/0x360 [ 7084.143642][ T253] netlink_unicast+0x449/0x710 [ 7084.143642][ T253] netlink_sendmsg+0x723/0xbe0 [ 7084.143642][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7084.143642][ T253] ___sys_sendmsg+0xee/0x170 [ 7084.143642][ T253] __sys_sendmsg+0xcd/0x170 [ 7084.143642][ T253] do_syscall_64+0xc6/0x1e0 [ 7084.143642][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7084.143642][ T253] [ 7094.386301][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7094.386790][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7094.386790][ T253] dst_init+0x84/0x4a0 [ 7094.386790][ T253] dst_alloc+0x97/0x150 [ 7094.386790][ T253] ip6_dst_alloc+0x23/0x90 [ 7094.386790][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7094.386790][ T253] ip6_pol_route+0x56f/0x840 [ 7094.386790][ T253] fib6_rule_lookup+0x334/0x630 [ 7094.386790][ T253] ip6_route_output_flags+0x259/0x480 [ 7094.386790][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7094.386790][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7094.386790][ T253] netlink_rcv_skb+0x130/0x360 [ 7094.386790][ T253] netlink_unicast+0x449/0x710 [ 7094.386790][ T253] netlink_sendmsg+0x723/0xbe0 [ 7094.386790][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7094.386790][ T253] ___sys_sendmsg+0xee/0x170 [ 7094.386790][ T253] __sys_sendmsg+0xcd/0x170 [ 7094.386790][ T253] do_syscall_64+0xc6/0x1e0 [ 7094.386790][ T253] [ 7094.388997][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7094.388997][ T253] netdev_get_by_index+0x5e/0x80 [ 7094.388997][ T253] fib6_nh_init+0x3d8/0x1580 [ 7094.388997][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7094.388997][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7094.388997][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7094.388997][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7094.388997][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7094.388997][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7094.388997][ T253] addrconf_dad_begin+0x310/0x670 [ 7094.388997][ T253] addrconf_dad_work+0x10b/0xab0 [ 7094.388997][ T253] process_one_work+0x84d/0x18a0 [ 7094.388997][ T253] worker_thread+0x587/0xd30 [ 7094.388997][ T253] kthread+0x28a/0x350 [ 7094.388997][ T253] ret_from_fork+0x31/0x70 [ 7094.388997][ T253] ret_from_fork_asm+0x1a/0x30 [ 7094.388997][ T253] [ 7094.391180][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7094.391180][ T253] netdev_get_by_index+0x5e/0x80 [ 7094.391180][ T253] fib6_nh_init+0x3d8/0x1580 [ 7094.391180][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7094.391180][ T253] ip6_route_add+0x1c/0x140 [ 7094.391180][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7094.391180][ T253] inet6_addr_add+0x4f8/0xa40 [ 7094.391180][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7094.391180][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7094.391180][ T253] netlink_rcv_skb+0x130/0x360 [ 7094.391180][ T253] netlink_unicast+0x449/0x710 [ 7094.391180][ T253] netlink_sendmsg+0x723/0xbe0 [ 7094.391180][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7094.391180][ T253] ___sys_sendmsg+0xee/0x170 [ 7094.391180][ T253] __sys_sendmsg+0xcd/0x170 [ 7094.391180][ T253] do_syscall_64+0xc6/0x1e0 [ 7094.391180][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7094.391180][ T253] [ 7094.393445][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7094.393445][ T253] netdev_get_by_index+0x5e/0x80 [ 7094.393445][ T253] fib6_nh_init+0x3d8/0x1580 [ 7094.393445][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7094.393445][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7094.393445][ T253] ipv6_add_addr+0x411/0x2000 [ 7094.393445][ T253] inet6_addr_add+0x30e/0xa40 [ 7094.393445][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7094.393445][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7094.393445][ T253] netlink_rcv_skb+0x130/0x360 [ 7094.393445][ T253] netlink_unicast+0x449/0x710 [ 7094.393445][ T253] netlink_sendmsg+0x723/0xbe0 [ 7094.393445][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7094.393445][ T253] ___sys_sendmsg+0xee/0x170 [ 7094.393445][ T253] __sys_sendmsg+0xcd/0x170 [ 7094.393445][ T253] do_syscall_64+0xc6/0x1e0 [ 7094.393445][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7094.393445][ T253] [ 7094.395673][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7094.395673][ T253] netdev_get_by_index+0x5e/0x80 [ 7094.395673][ T253] fib6_nh_init+0x3d8/0x1580 [ 7094.395673][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7094.395673][ T253] ip6_route_add+0x1c/0x140 [ 7094.395673][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7094.395673][ T253] addrconf_add_dev+0xe2/0x170 [ 7094.395673][ T253] inet6_addr_add+0x12f/0xa40 [ 7094.395673][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7094.395673][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7094.395673][ T253] netlink_rcv_skb+0x130/0x360 [ 7094.395673][ T253] netlink_unicast+0x449/0x710 [ 7094.395673][ T253] netlink_sendmsg+0x723/0xbe0 [ 7094.395673][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7094.395673][ T253] ___sys_sendmsg+0xee/0x170 [ 7094.395673][ T253] __sys_sendmsg+0xcd/0x170 [ 7094.395673][ T253] do_syscall_64+0xc6/0x1e0 [ 7094.395673][ T253] [ 7094.397877][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7094.397877][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7094.397877][ T253] ipv6_find_idev+0x102/0x170 [ 7094.397877][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7094.397877][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7094.397877][ T253] netlink_rcv_skb+0x130/0x360 [ 7094.397877][ T253] netlink_unicast+0x449/0x710 [ 7094.397877][ T253] netlink_sendmsg+0x723/0xbe0 [ 7094.397877][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7094.397877][ T253] ___sys_sendmsg+0xee/0x170 [ 7094.397877][ T253] __sys_sendmsg+0xcd/0x170 [ 7094.397877][ T253] do_syscall_64+0xc6/0x1e0 [ 7094.397877][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7094.397877][ T253] [ 7094.399600][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7094.399600][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7094.399600][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7094.399600][ T253] ipv6_find_idev+0x102/0x170 [ 7094.399600][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7094.399600][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7094.399600][ T253] netlink_rcv_skb+0x130/0x360 [ 7094.399600][ T253] netlink_unicast+0x449/0x710 [ 7094.399600][ T253] netlink_sendmsg+0x723/0xbe0 [ 7094.399600][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7094.399600][ T253] ___sys_sendmsg+0xee/0x170 [ 7094.399600][ T253] __sys_sendmsg+0xcd/0x170 [ 7094.399600][ T253] do_syscall_64+0xc6/0x1e0 [ 7094.399600][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7094.399600][ T253] [ 7104.642333][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7104.642854][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7104.642854][ T253] dst_init+0x84/0x4a0 [ 7104.642854][ T253] dst_alloc+0x97/0x150 [ 7104.642854][ T253] ip6_dst_alloc+0x23/0x90 [ 7104.642854][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7104.642854][ T253] ip6_pol_route+0x56f/0x840 [ 7104.642854][ T253] fib6_rule_lookup+0x334/0x630 [ 7104.642854][ T253] ip6_route_output_flags+0x259/0x480 [ 7104.642854][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7104.642854][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7104.642854][ T253] netlink_rcv_skb+0x130/0x360 [ 7104.642854][ T253] netlink_unicast+0x449/0x710 [ 7104.642854][ T253] netlink_sendmsg+0x723/0xbe0 [ 7104.642854][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7104.642854][ T253] ___sys_sendmsg+0xee/0x170 [ 7104.642854][ T253] __sys_sendmsg+0xcd/0x170 [ 7104.642854][ T253] do_syscall_64+0xc6/0x1e0 [ 7104.642854][ T253] [ 7104.645084][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7104.645084][ T253] netdev_get_by_index+0x5e/0x80 [ 7104.645084][ T253] fib6_nh_init+0x3d8/0x1580 [ 7104.645084][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7104.645084][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7104.645084][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7104.645084][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7104.645084][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7104.645084][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7104.645084][ T253] addrconf_dad_begin+0x310/0x670 [ 7104.645084][ T253] addrconf_dad_work+0x10b/0xab0 [ 7104.645084][ T253] process_one_work+0x84d/0x18a0 [ 7104.645084][ T253] worker_thread+0x587/0xd30 [ 7104.645084][ T253] kthread+0x28a/0x350 [ 7104.645084][ T253] ret_from_fork+0x31/0x70 [ 7104.645084][ T253] ret_from_fork_asm+0x1a/0x30 [ 7104.645084][ T253] [ 7104.647208][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7104.647208][ T253] netdev_get_by_index+0x5e/0x80 [ 7104.647208][ T253] fib6_nh_init+0x3d8/0x1580 [ 7104.647208][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7104.647208][ T253] ip6_route_add+0x1c/0x140 [ 7104.647208][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7104.647208][ T253] inet6_addr_add+0x4f8/0xa40 [ 7104.647208][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7104.647208][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7104.647208][ T253] netlink_rcv_skb+0x130/0x360 [ 7104.647208][ T253] netlink_unicast+0x449/0x710 [ 7104.647208][ T253] netlink_sendmsg+0x723/0xbe0 [ 7104.647208][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7104.647208][ T253] ___sys_sendmsg+0xee/0x170 [ 7104.647208][ T253] __sys_sendmsg+0xcd/0x170 [ 7104.647208][ T253] do_syscall_64+0xc6/0x1e0 [ 7104.647208][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7104.647208][ T253] [ 7104.649458][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7104.649458][ T253] netdev_get_by_index+0x5e/0x80 [ 7104.649458][ T253] fib6_nh_init+0x3d8/0x1580 [ 7104.649458][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7104.649458][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7104.649458][ T253] ipv6_add_addr+0x411/0x2000 [ 7104.649458][ T253] inet6_addr_add+0x30e/0xa40 [ 7104.649458][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7104.649458][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7104.649458][ T253] netlink_rcv_skb+0x130/0x360 [ 7104.649458][ T253] netlink_unicast+0x449/0x710 [ 7104.649458][ T253] netlink_sendmsg+0x723/0xbe0 [ 7104.649458][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7104.649458][ T253] ___sys_sendmsg+0xee/0x170 [ 7104.649458][ T253] __sys_sendmsg+0xcd/0x170 [ 7104.649458][ T253] do_syscall_64+0xc6/0x1e0 [ 7104.649458][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7104.649458][ T253] [ 7104.651697][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7104.651697][ T253] netdev_get_by_index+0x5e/0x80 [ 7104.651697][ T253] fib6_nh_init+0x3d8/0x1580 [ 7104.651697][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7104.651697][ T253] ip6_route_add+0x1c/0x140 [ 7104.651697][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7104.651697][ T253] addrconf_add_dev+0xe2/0x170 [ 7104.651697][ T253] inet6_addr_add+0x12f/0xa40 [ 7104.651697][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7104.651697][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7104.651697][ T253] netlink_rcv_skb+0x130/0x360 [ 7104.651697][ T253] netlink_unicast+0x449/0x710 [ 7104.651697][ T253] netlink_sendmsg+0x723/0xbe0 [ 7104.651697][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7104.651697][ T253] ___sys_sendmsg+0xee/0x170 [ 7104.651697][ T253] __sys_sendmsg+0xcd/0x170 [ 7104.651697][ T253] do_syscall_64+0xc6/0x1e0 [ 7104.651697][ T253] [ 7104.653905][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7104.653905][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7104.653905][ T253] ipv6_find_idev+0x102/0x170 [ 7104.653905][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7104.653905][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7104.653905][ T253] netlink_rcv_skb+0x130/0x360 [ 7104.653905][ T253] netlink_unicast+0x449/0x710 [ 7104.653905][ T253] netlink_sendmsg+0x723/0xbe0 [ 7104.653905][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7104.653905][ T253] ___sys_sendmsg+0xee/0x170 [ 7104.653905][ T253] __sys_sendmsg+0xcd/0x170 [ 7104.653905][ T253] do_syscall_64+0xc6/0x1e0 [ 7104.653905][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7104.653905][ T253] [ 7104.655641][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7104.655641][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7104.655641][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7104.655641][ T253] ipv6_find_idev+0x102/0x170 [ 7104.655641][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7104.655641][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7104.655641][ T253] netlink_rcv_skb+0x130/0x360 [ 7104.655641][ T253] netlink_unicast+0x449/0x710 [ 7104.655641][ T253] netlink_sendmsg+0x723/0xbe0 [ 7104.655641][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7104.655641][ T253] ___sys_sendmsg+0xee/0x170 [ 7104.655641][ T253] __sys_sendmsg+0xcd/0x170 [ 7104.655641][ T253] do_syscall_64+0xc6/0x1e0 [ 7104.655641][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7104.655641][ T253] [ 7114.714370][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7114.714788][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7114.714788][ T253] dst_init+0x84/0x4a0 [ 7114.714788][ T253] dst_alloc+0x97/0x150 [ 7114.714788][ T253] ip6_dst_alloc+0x23/0x90 [ 7114.714788][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7114.714788][ T253] ip6_pol_route+0x56f/0x840 [ 7114.714788][ T253] fib6_rule_lookup+0x334/0x630 [ 7114.714788][ T253] ip6_route_output_flags+0x259/0x480 [ 7114.714788][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7114.714788][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7114.714788][ T253] netlink_rcv_skb+0x130/0x360 [ 7114.714788][ T253] netlink_unicast+0x449/0x710 [ 7114.714788][ T253] netlink_sendmsg+0x723/0xbe0 [ 7114.714788][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7114.714788][ T253] ___sys_sendmsg+0xee/0x170 [ 7114.714788][ T253] __sys_sendmsg+0xcd/0x170 [ 7114.714788][ T253] do_syscall_64+0xc6/0x1e0 [ 7114.714788][ T253] [ 7114.716982][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7114.716982][ T253] netdev_get_by_index+0x5e/0x80 [ 7114.716982][ T253] fib6_nh_init+0x3d8/0x1580 [ 7114.716982][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7114.716982][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7114.716982][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7114.716982][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7114.716982][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7114.716982][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7114.716982][ T253] addrconf_dad_begin+0x310/0x670 [ 7114.716982][ T253] addrconf_dad_work+0x10b/0xab0 [ 7114.716982][ T253] process_one_work+0x84d/0x18a0 [ 7114.716982][ T253] worker_thread+0x587/0xd30 [ 7114.716982][ T253] kthread+0x28a/0x350 [ 7114.716982][ T253] ret_from_fork+0x31/0x70 [ 7114.716982][ T253] ret_from_fork_asm+0x1a/0x30 [ 7114.716982][ T253] [ 7114.719145][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7114.719145][ T253] netdev_get_by_index+0x5e/0x80 [ 7114.719145][ T253] fib6_nh_init+0x3d8/0x1580 [ 7114.719145][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7114.719145][ T253] ip6_route_add+0x1c/0x140 [ 7114.719145][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7114.719145][ T253] inet6_addr_add+0x4f8/0xa40 [ 7114.719145][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7114.719145][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7114.719145][ T253] netlink_rcv_skb+0x130/0x360 [ 7114.719145][ T253] netlink_unicast+0x449/0x710 [ 7114.719145][ T253] netlink_sendmsg+0x723/0xbe0 [ 7114.719145][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7114.719145][ T253] ___sys_sendmsg+0xee/0x170 [ 7114.719145][ T253] __sys_sendmsg+0xcd/0x170 [ 7114.719145][ T253] do_syscall_64+0xc6/0x1e0 [ 7114.719145][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7114.719145][ T253] [ 7114.721408][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7114.721408][ T253] netdev_get_by_index+0x5e/0x80 [ 7114.721408][ T253] fib6_nh_init+0x3d8/0x1580 [ 7114.721408][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7114.721408][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7114.721408][ T253] ipv6_add_addr+0x411/0x2000 [ 7114.721408][ T253] inet6_addr_add+0x30e/0xa40 [ 7114.721408][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7114.721408][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7114.721408][ T253] netlink_rcv_skb+0x130/0x360 [ 7114.721408][ T253] netlink_unicast+0x449/0x710 [ 7114.721408][ T253] netlink_sendmsg+0x723/0xbe0 [ 7114.721408][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7114.721408][ T253] ___sys_sendmsg+0xee/0x170 [ 7114.721408][ T253] __sys_sendmsg+0xcd/0x170 [ 7114.721408][ T253] do_syscall_64+0xc6/0x1e0 [ 7114.721408][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7114.721408][ T253] [ 7114.723670][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7114.723670][ T253] netdev_get_by_index+0x5e/0x80 [ 7114.723670][ T253] fib6_nh_init+0x3d8/0x1580 [ 7114.723670][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7114.723670][ T253] ip6_route_add+0x1c/0x140 [ 7114.723670][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7114.723670][ T253] addrconf_add_dev+0xe2/0x170 [ 7114.723670][ T253] inet6_addr_add+0x12f/0xa40 [ 7114.723670][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7114.723670][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7114.723670][ T253] netlink_rcv_skb+0x130/0x360 [ 7114.723670][ T253] netlink_unicast+0x449/0x710 [ 7114.723670][ T253] netlink_sendmsg+0x723/0xbe0 [ 7114.723670][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7114.723670][ T253] ___sys_sendmsg+0xee/0x170 [ 7114.723670][ T253] __sys_sendmsg+0xcd/0x170 [ 7114.723670][ T253] do_syscall_64+0xc6/0x1e0 [ 7114.723670][ T253] [ 7114.725877][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7114.725877][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7114.725877][ T253] ipv6_find_idev+0x102/0x170 [ 7114.725877][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7114.725877][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7114.725877][ T253] netlink_rcv_skb+0x130/0x360 [ 7114.725877][ T253] netlink_unicast+0x449/0x710 [ 7114.725877][ T253] netlink_sendmsg+0x723/0xbe0 [ 7114.725877][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7114.725877][ T253] ___sys_sendmsg+0xee/0x170 [ 7114.725877][ T253] __sys_sendmsg+0xcd/0x170 [ 7114.725877][ T253] do_syscall_64+0xc6/0x1e0 [ 7114.725877][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7114.725877][ T253] [ 7114.727596][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7114.727596][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7114.727596][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7114.727596][ T253] ipv6_find_idev+0x102/0x170 [ 7114.727596][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7114.727596][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7114.727596][ T253] netlink_rcv_skb+0x130/0x360 [ 7114.727596][ T253] netlink_unicast+0x449/0x710 [ 7114.727596][ T253] netlink_sendmsg+0x723/0xbe0 [ 7114.727596][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7114.727596][ T253] ___sys_sendmsg+0xee/0x170 [ 7114.727596][ T253] __sys_sendmsg+0xcd/0x170 [ 7114.727596][ T253] do_syscall_64+0xc6/0x1e0 [ 7114.727596][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7114.727596][ T253] [ 7124.802308][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7124.802743][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7124.802743][ T253] dst_init+0x84/0x4a0 [ 7124.802743][ T253] dst_alloc+0x97/0x150 [ 7124.802743][ T253] ip6_dst_alloc+0x23/0x90 [ 7124.802743][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7124.802743][ T253] ip6_pol_route+0x56f/0x840 [ 7124.802743][ T253] fib6_rule_lookup+0x334/0x630 [ 7124.802743][ T253] ip6_route_output_flags+0x259/0x480 [ 7124.802743][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7124.802743][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7124.802743][ T253] netlink_rcv_skb+0x130/0x360 [ 7124.802743][ T253] netlink_unicast+0x449/0x710 [ 7124.802743][ T253] netlink_sendmsg+0x723/0xbe0 [ 7124.802743][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7124.802743][ T253] ___sys_sendmsg+0xee/0x170 [ 7124.802743][ T253] __sys_sendmsg+0xcd/0x170 [ 7124.802743][ T253] do_syscall_64+0xc6/0x1e0 [ 7124.802743][ T253] [ 7124.804945][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7124.804945][ T253] netdev_get_by_index+0x5e/0x80 [ 7124.804945][ T253] fib6_nh_init+0x3d8/0x1580 [ 7124.804945][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7124.804945][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7124.804945][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7124.804945][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7124.804945][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7124.804945][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7124.804945][ T253] addrconf_dad_begin+0x310/0x670 [ 7124.804945][ T253] addrconf_dad_work+0x10b/0xab0 [ 7124.804945][ T253] process_one_work+0x84d/0x18a0 [ 7124.804945][ T253] worker_thread+0x587/0xd30 [ 7124.804945][ T253] kthread+0x28a/0x350 [ 7124.804945][ T253] ret_from_fork+0x31/0x70 [ 7124.804945][ T253] ret_from_fork_asm+0x1a/0x30 [ 7124.804945][ T253] [ 7124.807112][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7124.807112][ T253] netdev_get_by_index+0x5e/0x80 [ 7124.807112][ T253] fib6_nh_init+0x3d8/0x1580 [ 7124.807112][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7124.807112][ T253] ip6_route_add+0x1c/0x140 [ 7124.807112][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7124.807112][ T253] inet6_addr_add+0x4f8/0xa40 [ 7124.807112][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7124.807112][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7124.807112][ T253] netlink_rcv_skb+0x130/0x360 [ 7124.807112][ T253] netlink_unicast+0x449/0x710 [ 7124.807112][ T253] netlink_sendmsg+0x723/0xbe0 [ 7124.807112][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7124.807112][ T253] ___sys_sendmsg+0xee/0x170 [ 7124.807112][ T253] __sys_sendmsg+0xcd/0x170 [ 7124.807112][ T253] do_syscall_64+0xc6/0x1e0 [ 7124.807112][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7124.807112][ T253] [ 7124.809358][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7124.809358][ T253] netdev_get_by_index+0x5e/0x80 [ 7124.809358][ T253] fib6_nh_init+0x3d8/0x1580 [ 7124.809358][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7124.809358][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7124.809358][ T253] ipv6_add_addr+0x411/0x2000 [ 7124.809358][ T253] inet6_addr_add+0x30e/0xa40 [ 7124.809358][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7124.809358][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7124.809358][ T253] netlink_rcv_skb+0x130/0x360 [ 7124.809358][ T253] netlink_unicast+0x449/0x710 [ 7124.809358][ T253] netlink_sendmsg+0x723/0xbe0 [ 7124.809358][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7124.809358][ T253] ___sys_sendmsg+0xee/0x170 [ 7124.809358][ T253] __sys_sendmsg+0xcd/0x170 [ 7124.809358][ T253] do_syscall_64+0xc6/0x1e0 [ 7124.809358][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7124.809358][ T253] [ 7124.811602][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7124.811602][ T253] netdev_get_by_index+0x5e/0x80 [ 7124.811602][ T253] fib6_nh_init+0x3d8/0x1580 [ 7124.811602][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7124.811602][ T253] ip6_route_add+0x1c/0x140 [ 7124.811602][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7124.811602][ T253] addrconf_add_dev+0xe2/0x170 [ 7124.811602][ T253] inet6_addr_add+0x12f/0xa40 [ 7124.811602][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7124.811602][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7124.811602][ T253] netlink_rcv_skb+0x130/0x360 [ 7124.811602][ T253] netlink_unicast+0x449/0x710 [ 7124.811602][ T253] netlink_sendmsg+0x723/0xbe0 [ 7124.811602][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7124.811602][ T253] ___sys_sendmsg+0xee/0x170 [ 7124.811602][ T253] __sys_sendmsg+0xcd/0x170 [ 7124.811602][ T253] do_syscall_64+0xc6/0x1e0 [ 7124.811602][ T253] [ 7124.813821][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7124.813821][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7124.813821][ T253] ipv6_find_idev+0x102/0x170 [ 7124.813821][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7124.813821][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7124.813821][ T253] netlink_rcv_skb+0x130/0x360 [ 7124.813821][ T253] netlink_unicast+0x449/0x710 [ 7124.813821][ T253] netlink_sendmsg+0x723/0xbe0 [ 7124.813821][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7124.813821][ T253] ___sys_sendmsg+0xee/0x170 [ 7124.813821][ T253] __sys_sendmsg+0xcd/0x170 [ 7124.813821][ T253] do_syscall_64+0xc6/0x1e0 [ 7124.813821][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7124.813821][ T253] [ 7124.815554][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7124.815554][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7124.815554][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7124.815554][ T253] ipv6_find_idev+0x102/0x170 [ 7124.815554][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7124.815554][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7124.815554][ T253] netlink_rcv_skb+0x130/0x360 [ 7124.815554][ T253] netlink_unicast+0x449/0x710 [ 7124.815554][ T253] netlink_sendmsg+0x723/0xbe0 [ 7124.815554][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7124.815554][ T253] ___sys_sendmsg+0xee/0x170 [ 7124.815554][ T253] __sys_sendmsg+0xcd/0x170 [ 7124.815554][ T253] do_syscall_64+0xc6/0x1e0 [ 7124.815554][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7124.815554][ T253] [ 7135.058306][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7135.058826][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7135.058826][ T253] dst_init+0x84/0x4a0 [ 7135.058826][ T253] dst_alloc+0x97/0x150 [ 7135.058826][ T253] ip6_dst_alloc+0x23/0x90 [ 7135.058826][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7135.058826][ T253] ip6_pol_route+0x56f/0x840 [ 7135.058826][ T253] fib6_rule_lookup+0x334/0x630 [ 7135.058826][ T253] ip6_route_output_flags+0x259/0x480 [ 7135.058826][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7135.058826][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7135.058826][ T253] netlink_rcv_skb+0x130/0x360 [ 7135.058826][ T253] netlink_unicast+0x449/0x710 [ 7135.058826][ T253] netlink_sendmsg+0x723/0xbe0 [ 7135.058826][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7135.058826][ T253] ___sys_sendmsg+0xee/0x170 [ 7135.058826][ T253] __sys_sendmsg+0xcd/0x170 [ 7135.058826][ T253] do_syscall_64+0xc6/0x1e0 [ 7135.058826][ T253] [ 7135.061024][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7135.061024][ T253] netdev_get_by_index+0x5e/0x80 [ 7135.061024][ T253] fib6_nh_init+0x3d8/0x1580 [ 7135.061024][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7135.061024][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7135.061024][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7135.061024][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7135.061024][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7135.061024][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7135.061024][ T253] addrconf_dad_begin+0x310/0x670 [ 7135.061024][ T253] addrconf_dad_work+0x10b/0xab0 [ 7135.061024][ T253] process_one_work+0x84d/0x18a0 [ 7135.061024][ T253] worker_thread+0x587/0xd30 [ 7135.061024][ T253] kthread+0x28a/0x350 [ 7135.061024][ T253] ret_from_fork+0x31/0x70 [ 7135.061024][ T253] ret_from_fork_asm+0x1a/0x30 [ 7135.061024][ T253] [ 7135.063178][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7135.063178][ T253] netdev_get_by_index+0x5e/0x80 [ 7135.063178][ T253] fib6_nh_init+0x3d8/0x1580 [ 7135.063178][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7135.063178][ T253] ip6_route_add+0x1c/0x140 [ 7135.063178][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7135.063178][ T253] inet6_addr_add+0x4f8/0xa40 [ 7135.063178][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7135.063178][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7135.063178][ T253] netlink_rcv_skb+0x130/0x360 [ 7135.063178][ T253] netlink_unicast+0x449/0x710 [ 7135.063178][ T253] netlink_sendmsg+0x723/0xbe0 [ 7135.063178][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7135.063178][ T253] ___sys_sendmsg+0xee/0x170 [ 7135.063178][ T253] __sys_sendmsg+0xcd/0x170 [ 7135.063178][ T253] do_syscall_64+0xc6/0x1e0 [ 7135.063178][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7135.063178][ T253] [ 7135.065436][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7135.065436][ T253] netdev_get_by_index+0x5e/0x80 [ 7135.065436][ T253] fib6_nh_init+0x3d8/0x1580 [ 7135.065436][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7135.065436][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7135.065436][ T253] ipv6_add_addr+0x411/0x2000 [ 7135.065436][ T253] inet6_addr_add+0x30e/0xa40 [ 7135.065436][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7135.065436][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7135.065436][ T253] netlink_rcv_skb+0x130/0x360 [ 7135.065436][ T253] netlink_unicast+0x449/0x710 [ 7135.065436][ T253] netlink_sendmsg+0x723/0xbe0 [ 7135.065436][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7135.065436][ T253] ___sys_sendmsg+0xee/0x170 [ 7135.065436][ T253] __sys_sendmsg+0xcd/0x170 [ 7135.065436][ T253] do_syscall_64+0xc6/0x1e0 [ 7135.065436][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7135.065436][ T253] [ 7135.067705][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7135.067705][ T253] netdev_get_by_index+0x5e/0x80 [ 7135.067705][ T253] fib6_nh_init+0x3d8/0x1580 [ 7135.067705][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7135.067705][ T253] ip6_route_add+0x1c/0x140 [ 7135.067705][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7135.067705][ T253] addrconf_add_dev+0xe2/0x170 [ 7135.067705][ T253] inet6_addr_add+0x12f/0xa40 [ 7135.067705][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7135.067705][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7135.067705][ T253] netlink_rcv_skb+0x130/0x360 [ 7135.067705][ T253] netlink_unicast+0x449/0x710 [ 7135.067705][ T253] netlink_sendmsg+0x723/0xbe0 [ 7135.067705][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7135.067705][ T253] ___sys_sendmsg+0xee/0x170 [ 7135.067705][ T253] __sys_sendmsg+0xcd/0x170 [ 7135.067705][ T253] do_syscall_64+0xc6/0x1e0 [ 7135.067705][ T253] [ 7135.069920][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7135.069920][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7135.069920][ T253] ipv6_find_idev+0x102/0x170 [ 7135.069920][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7135.069920][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7135.069920][ T253] netlink_rcv_skb+0x130/0x360 [ 7135.069920][ T253] netlink_unicast+0x449/0x710 [ 7135.069920][ T253] netlink_sendmsg+0x723/0xbe0 [ 7135.069920][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7135.069920][ T253] ___sys_sendmsg+0xee/0x170 [ 7135.069920][ T253] __sys_sendmsg+0xcd/0x170 [ 7135.069920][ T253] do_syscall_64+0xc6/0x1e0 [ 7135.069920][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7135.069920][ T253] [ 7135.071664][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7135.071664][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7135.071664][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7135.071664][ T253] ipv6_find_idev+0x102/0x170 [ 7135.071664][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7135.071664][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7135.071664][ T253] netlink_rcv_skb+0x130/0x360 [ 7135.071664][ T253] netlink_unicast+0x449/0x710 [ 7135.071664][ T253] netlink_sendmsg+0x723/0xbe0 [ 7135.071664][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7135.071664][ T253] ___sys_sendmsg+0xee/0x170 [ 7135.071664][ T253] __sys_sendmsg+0xcd/0x170 [ 7135.071664][ T253] do_syscall_64+0xc6/0x1e0 [ 7135.071664][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7135.071664][ T253] [ 7145.314314][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7145.314779][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7145.314779][ T253] dst_init+0x84/0x4a0 [ 7145.314779][ T253] dst_alloc+0x97/0x150 [ 7145.314779][ T253] ip6_dst_alloc+0x23/0x90 [ 7145.314779][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7145.314779][ T253] ip6_pol_route+0x56f/0x840 [ 7145.314779][ T253] fib6_rule_lookup+0x334/0x630 [ 7145.314779][ T253] ip6_route_output_flags+0x259/0x480 [ 7145.314779][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7145.314779][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7145.314779][ T253] netlink_rcv_skb+0x130/0x360 [ 7145.314779][ T253] netlink_unicast+0x449/0x710 [ 7145.314779][ T253] netlink_sendmsg+0x723/0xbe0 [ 7145.314779][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7145.314779][ T253] ___sys_sendmsg+0xee/0x170 [ 7145.314779][ T253] __sys_sendmsg+0xcd/0x170 [ 7145.314779][ T253] do_syscall_64+0xc6/0x1e0 [ 7145.314779][ T253] [ 7145.317000][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7145.317000][ T253] netdev_get_by_index+0x5e/0x80 [ 7145.317000][ T253] fib6_nh_init+0x3d8/0x1580 [ 7145.317000][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7145.317000][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7145.317000][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7145.317000][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7145.317000][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7145.317000][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7145.317000][ T253] addrconf_dad_begin+0x310/0x670 [ 7145.317000][ T253] addrconf_dad_work+0x10b/0xab0 [ 7145.317000][ T253] process_one_work+0x84d/0x18a0 [ 7145.317000][ T253] worker_thread+0x587/0xd30 [ 7145.317000][ T253] kthread+0x28a/0x350 [ 7145.317000][ T253] ret_from_fork+0x31/0x70 [ 7145.317000][ T253] ret_from_fork_asm+0x1a/0x30 [ 7145.317000][ T253] [ 7145.319121][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7145.319121][ T253] netdev_get_by_index+0x5e/0x80 [ 7145.319121][ T253] fib6_nh_init+0x3d8/0x1580 [ 7145.319121][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7145.319121][ T253] ip6_route_add+0x1c/0x140 [ 7145.319121][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7145.319121][ T253] inet6_addr_add+0x4f8/0xa40 [ 7145.319121][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7145.319121][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7145.319121][ T253] netlink_rcv_skb+0x130/0x360 [ 7145.319121][ T253] netlink_unicast+0x449/0x710 [ 7145.319121][ T253] netlink_sendmsg+0x723/0xbe0 [ 7145.319121][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7145.319121][ T253] ___sys_sendmsg+0xee/0x170 [ 7145.319121][ T253] __sys_sendmsg+0xcd/0x170 [ 7145.319121][ T253] do_syscall_64+0xc6/0x1e0 [ 7145.319121][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7145.319121][ T253] [ 7145.321380][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7145.321380][ T253] netdev_get_by_index+0x5e/0x80 [ 7145.321380][ T253] fib6_nh_init+0x3d8/0x1580 [ 7145.321380][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7145.321380][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7145.321380][ T253] ipv6_add_addr+0x411/0x2000 [ 7145.321380][ T253] inet6_addr_add+0x30e/0xa40 [ 7145.321380][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7145.321380][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7145.321380][ T253] netlink_rcv_skb+0x130/0x360 [ 7145.321380][ T253] netlink_unicast+0x449/0x710 [ 7145.321380][ T253] netlink_sendmsg+0x723/0xbe0 [ 7145.321380][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7145.321380][ T253] ___sys_sendmsg+0xee/0x170 [ 7145.321380][ T253] __sys_sendmsg+0xcd/0x170 [ 7145.321380][ T253] do_syscall_64+0xc6/0x1e0 [ 7145.321380][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7145.321380][ T253] [ 7145.324171][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7145.324171][ T253] netdev_get_by_index+0x5e/0x80 [ 7145.324171][ T253] fib6_nh_init+0x3d8/0x1580 [ 7145.324171][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7145.324171][ T253] ip6_route_add+0x1c/0x140 [ 7145.324171][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7145.324171][ T253] addrconf_add_dev+0xe2/0x170 [ 7145.324171][ T253] inet6_addr_add+0x12f/0xa40 [ 7145.324171][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7145.324171][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7145.324171][ T253] netlink_rcv_skb+0x130/0x360 [ 7145.324171][ T253] netlink_unicast+0x449/0x710 [ 7145.324171][ T253] netlink_sendmsg+0x723/0xbe0 [ 7145.324171][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7145.324171][ T253] ___sys_sendmsg+0xee/0x170 [ 7145.324171][ T253] __sys_sendmsg+0xcd/0x170 [ 7145.324171][ T253] do_syscall_64+0xc6/0x1e0 [ 7145.324171][ T253] [ 7145.326375][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7145.326375][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7145.326375][ T253] ipv6_find_idev+0x102/0x170 [ 7145.326375][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7145.326375][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7145.326375][ T253] netlink_rcv_skb+0x130/0x360 [ 7145.326375][ T253] netlink_unicast+0x449/0x710 [ 7145.326375][ T253] netlink_sendmsg+0x723/0xbe0 [ 7145.326375][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7145.326375][ T253] ___sys_sendmsg+0xee/0x170 [ 7145.326375][ T253] __sys_sendmsg+0xcd/0x170 [ 7145.326375][ T253] do_syscall_64+0xc6/0x1e0 [ 7145.326375][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7145.326375][ T253] [ 7145.328111][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7145.328111][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7145.328111][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7145.328111][ T253] ipv6_find_idev+0x102/0x170 [ 7145.328111][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7145.328111][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7145.328111][ T253] netlink_rcv_skb+0x130/0x360 [ 7145.328111][ T253] netlink_unicast+0x449/0x710 [ 7145.328111][ T253] netlink_sendmsg+0x723/0xbe0 [ 7145.328111][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7145.328111][ T253] ___sys_sendmsg+0xee/0x170 [ 7145.328111][ T253] __sys_sendmsg+0xcd/0x170 [ 7145.328111][ T253] do_syscall_64+0xc6/0x1e0 [ 7145.328111][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7145.328111][ T253] [ 7155.554299][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7155.554787][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7155.554787][ T253] dst_init+0x84/0x4a0 [ 7155.554787][ T253] dst_alloc+0x97/0x150 [ 7155.554787][ T253] ip6_dst_alloc+0x23/0x90 [ 7155.554787][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7155.554787][ T253] ip6_pol_route+0x56f/0x840 [ 7155.554787][ T253] fib6_rule_lookup+0x334/0x630 [ 7155.554787][ T253] ip6_route_output_flags+0x259/0x480 [ 7155.554787][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7155.554787][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7155.554787][ T253] netlink_rcv_skb+0x130/0x360 [ 7155.554787][ T253] netlink_unicast+0x449/0x710 [ 7155.554787][ T253] netlink_sendmsg+0x723/0xbe0 [ 7155.554787][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7155.554787][ T253] ___sys_sendmsg+0xee/0x170 [ 7155.554787][ T253] __sys_sendmsg+0xcd/0x170 [ 7155.554787][ T253] do_syscall_64+0xc6/0x1e0 [ 7155.554787][ T253] [ 7155.556970][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7155.556970][ T253] netdev_get_by_index+0x5e/0x80 [ 7155.556970][ T253] fib6_nh_init+0x3d8/0x1580 [ 7155.556970][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7155.556970][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7155.556970][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7155.556970][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7155.556970][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7155.556970][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7155.556970][ T253] addrconf_dad_begin+0x310/0x670 [ 7155.556970][ T253] addrconf_dad_work+0x10b/0xab0 [ 7155.556970][ T253] process_one_work+0x84d/0x18a0 [ 7155.556970][ T253] worker_thread+0x587/0xd30 [ 7155.556970][ T253] kthread+0x28a/0x350 [ 7155.556970][ T253] ret_from_fork+0x31/0x70 [ 7155.556970][ T253] ret_from_fork_asm+0x1a/0x30 [ 7155.556970][ T253] [ 7155.559133][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7155.559133][ T253] netdev_get_by_index+0x5e/0x80 [ 7155.559133][ T253] fib6_nh_init+0x3d8/0x1580 [ 7155.559133][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7155.559133][ T253] ip6_route_add+0x1c/0x140 [ 7155.559133][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7155.559133][ T253] inet6_addr_add+0x4f8/0xa40 [ 7155.559133][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7155.559133][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7155.559133][ T253] netlink_rcv_skb+0x130/0x360 [ 7155.559133][ T253] netlink_unicast+0x449/0x710 [ 7155.559133][ T253] netlink_sendmsg+0x723/0xbe0 [ 7155.559133][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7155.559133][ T253] ___sys_sendmsg+0xee/0x170 [ 7155.559133][ T253] __sys_sendmsg+0xcd/0x170 [ 7155.559133][ T253] do_syscall_64+0xc6/0x1e0 [ 7155.559133][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7155.559133][ T253] [ 7155.561399][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7155.561399][ T253] netdev_get_by_index+0x5e/0x80 [ 7155.561399][ T253] fib6_nh_init+0x3d8/0x1580 [ 7155.561399][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7155.561399][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7155.561399][ T253] ipv6_add_addr+0x411/0x2000 [ 7155.561399][ T253] inet6_addr_add+0x30e/0xa40 [ 7155.561399][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7155.561399][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7155.561399][ T253] netlink_rcv_skb+0x130/0x360 [ 7155.561399][ T253] netlink_unicast+0x449/0x710 [ 7155.561399][ T253] netlink_sendmsg+0x723/0xbe0 [ 7155.561399][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7155.561399][ T253] ___sys_sendmsg+0xee/0x170 [ 7155.561399][ T253] __sys_sendmsg+0xcd/0x170 [ 7155.561399][ T253] do_syscall_64+0xc6/0x1e0 [ 7155.561399][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7155.561399][ T253] [ 7155.563665][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7155.563665][ T253] netdev_get_by_index+0x5e/0x80 [ 7155.563665][ T253] fib6_nh_init+0x3d8/0x1580 [ 7155.563665][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7155.563665][ T253] ip6_route_add+0x1c/0x140 [ 7155.563665][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7155.563665][ T253] addrconf_add_dev+0xe2/0x170 [ 7155.563665][ T253] inet6_addr_add+0x12f/0xa40 [ 7155.563665][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7155.563665][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7155.563665][ T253] netlink_rcv_skb+0x130/0x360 [ 7155.563665][ T253] netlink_unicast+0x449/0x710 [ 7155.563665][ T253] netlink_sendmsg+0x723/0xbe0 [ 7155.563665][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7155.563665][ T253] ___sys_sendmsg+0xee/0x170 [ 7155.563665][ T253] __sys_sendmsg+0xcd/0x170 [ 7155.563665][ T253] do_syscall_64+0xc6/0x1e0 [ 7155.563665][ T253] [ 7155.565863][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7155.565863][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7155.565863][ T253] ipv6_find_idev+0x102/0x170 [ 7155.565863][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7155.565863][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7155.565863][ T253] netlink_rcv_skb+0x130/0x360 [ 7155.565863][ T253] netlink_unicast+0x449/0x710 [ 7155.565863][ T253] netlink_sendmsg+0x723/0xbe0 [ 7155.565863][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7155.565863][ T253] ___sys_sendmsg+0xee/0x170 [ 7155.565863][ T253] __sys_sendmsg+0xcd/0x170 [ 7155.565863][ T253] do_syscall_64+0xc6/0x1e0 [ 7155.565863][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7155.565863][ T253] [ 7155.567627][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7155.567627][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7155.567627][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7155.567627][ T253] ipv6_find_idev+0x102/0x170 [ 7155.567627][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7155.567627][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7155.567627][ T253] netlink_rcv_skb+0x130/0x360 [ 7155.567627][ T253] netlink_unicast+0x449/0x710 [ 7155.567627][ T253] netlink_sendmsg+0x723/0xbe0 [ 7155.567627][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7155.567627][ T253] ___sys_sendmsg+0xee/0x170 [ 7155.567627][ T253] __sys_sendmsg+0xcd/0x170 [ 7155.567627][ T253] do_syscall_64+0xc6/0x1e0 [ 7155.567627][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7155.567627][ T253] [ 7165.778297][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7165.778769][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7165.778769][ T253] dst_init+0x84/0x4a0 [ 7165.778769][ T253] dst_alloc+0x97/0x150 [ 7165.778769][ T253] ip6_dst_alloc+0x23/0x90 [ 7165.778769][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7165.778769][ T253] ip6_pol_route+0x56f/0x840 [ 7165.778769][ T253] fib6_rule_lookup+0x334/0x630 [ 7165.778769][ T253] ip6_route_output_flags+0x259/0x480 [ 7165.778769][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7165.778769][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7165.778769][ T253] netlink_rcv_skb+0x130/0x360 [ 7165.778769][ T253] netlink_unicast+0x449/0x710 [ 7165.778769][ T253] netlink_sendmsg+0x723/0xbe0 [ 7165.778769][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7165.778769][ T253] ___sys_sendmsg+0xee/0x170 [ 7165.778769][ T253] __sys_sendmsg+0xcd/0x170 [ 7165.778769][ T253] do_syscall_64+0xc6/0x1e0 [ 7165.778769][ T253] [ 7165.780995][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7165.780995][ T253] netdev_get_by_index+0x5e/0x80 [ 7165.780995][ T253] fib6_nh_init+0x3d8/0x1580 [ 7165.780995][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7165.780995][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7165.780995][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7165.780995][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7165.780995][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7165.780995][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7165.780995][ T253] addrconf_dad_begin+0x310/0x670 [ 7165.780995][ T253] addrconf_dad_work+0x10b/0xab0 [ 7165.780995][ T253] process_one_work+0x84d/0x18a0 [ 7165.780995][ T253] worker_thread+0x587/0xd30 [ 7165.780995][ T253] kthread+0x28a/0x350 [ 7165.780995][ T253] ret_from_fork+0x31/0x70 [ 7165.780995][ T253] ret_from_fork_asm+0x1a/0x30 [ 7165.780995][ T253] [ 7165.783154][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7165.783154][ T253] netdev_get_by_index+0x5e/0x80 [ 7165.783154][ T253] fib6_nh_init+0x3d8/0x1580 [ 7165.783154][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7165.783154][ T253] ip6_route_add+0x1c/0x140 [ 7165.783154][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7165.783154][ T253] inet6_addr_add+0x4f8/0xa40 [ 7165.783154][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7165.783154][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7165.783154][ T253] netlink_rcv_skb+0x130/0x360 [ 7165.783154][ T253] netlink_unicast+0x449/0x710 [ 7165.783154][ T253] netlink_sendmsg+0x723/0xbe0 [ 7165.783154][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7165.783154][ T253] ___sys_sendmsg+0xee/0x170 [ 7165.783154][ T253] __sys_sendmsg+0xcd/0x170 [ 7165.783154][ T253] do_syscall_64+0xc6/0x1e0 [ 7165.783154][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7165.783154][ T253] [ 7165.785406][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7165.785406][ T253] netdev_get_by_index+0x5e/0x80 [ 7165.785406][ T253] fib6_nh_init+0x3d8/0x1580 [ 7165.785406][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7165.785406][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7165.785406][ T253] ipv6_add_addr+0x411/0x2000 [ 7165.785406][ T253] inet6_addr_add+0x30e/0xa40 [ 7165.785406][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7165.785406][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7165.785406][ T253] netlink_rcv_skb+0x130/0x360 [ 7165.785406][ T253] netlink_unicast+0x449/0x710 [ 7165.785406][ T253] netlink_sendmsg+0x723/0xbe0 [ 7165.785406][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7165.785406][ T253] ___sys_sendmsg+0xee/0x170 [ 7165.785406][ T253] __sys_sendmsg+0xcd/0x170 [ 7165.785406][ T253] do_syscall_64+0xc6/0x1e0 [ 7165.785406][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7165.785406][ T253] [ 7165.787652][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7165.787652][ T253] netdev_get_by_index+0x5e/0x80 [ 7165.787652][ T253] fib6_nh_init+0x3d8/0x1580 [ 7165.787652][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7165.787652][ T253] ip6_route_add+0x1c/0x140 [ 7165.787652][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7165.787652][ T253] addrconf_add_dev+0xe2/0x170 [ 7165.787652][ T253] inet6_addr_add+0x12f/0xa40 [ 7165.787652][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7165.787652][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7165.787652][ T253] netlink_rcv_skb+0x130/0x360 [ 7165.787652][ T253] netlink_unicast+0x449/0x710 [ 7165.787652][ T253] netlink_sendmsg+0x723/0xbe0 [ 7165.787652][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7165.787652][ T253] ___sys_sendmsg+0xee/0x170 [ 7165.787652][ T253] __sys_sendmsg+0xcd/0x170 [ 7165.787652][ T253] do_syscall_64+0xc6/0x1e0 [ 7165.787652][ T253] [ 7165.789802][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7165.789802][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7165.789802][ T253] ipv6_find_idev+0x102/0x170 [ 7165.789802][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7165.789802][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7165.789802][ T253] netlink_rcv_skb+0x130/0x360 [ 7165.789802][ T253] netlink_unicast+0x449/0x710 [ 7165.789802][ T253] netlink_sendmsg+0x723/0xbe0 [ 7165.789802][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7165.789802][ T253] ___sys_sendmsg+0xee/0x170 [ 7165.789802][ T253] __sys_sendmsg+0xcd/0x170 [ 7165.789802][ T253] do_syscall_64+0xc6/0x1e0 [ 7165.789802][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7165.789802][ T253] [ 7165.791478][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7165.791478][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7165.791478][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7165.791478][ T253] ipv6_find_idev+0x102/0x170 [ 7165.791478][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7165.791478][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7165.791478][ T253] netlink_rcv_skb+0x130/0x360 [ 7165.791478][ T253] netlink_unicast+0x449/0x710 [ 7165.791478][ T253] netlink_sendmsg+0x723/0xbe0 [ 7165.791478][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7165.791478][ T253] ___sys_sendmsg+0xee/0x170 [ 7165.791478][ T253] __sys_sendmsg+0xcd/0x170 [ 7165.791478][ T253] do_syscall_64+0xc6/0x1e0 [ 7165.791478][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7165.791478][ T253] [ 7176.034301][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7176.034775][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7176.034775][ T253] dst_init+0x84/0x4a0 [ 7176.034775][ T253] dst_alloc+0x97/0x150 [ 7176.034775][ T253] ip6_dst_alloc+0x23/0x90 [ 7176.034775][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7176.034775][ T253] ip6_pol_route+0x56f/0x840 [ 7176.034775][ T253] fib6_rule_lookup+0x334/0x630 [ 7176.034775][ T253] ip6_route_output_flags+0x259/0x480 [ 7176.034775][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7176.034775][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7176.034775][ T253] netlink_rcv_skb+0x130/0x360 [ 7176.034775][ T253] netlink_unicast+0x449/0x710 [ 7176.034775][ T253] netlink_sendmsg+0x723/0xbe0 [ 7176.034775][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7176.034775][ T253] ___sys_sendmsg+0xee/0x170 [ 7176.034775][ T253] __sys_sendmsg+0xcd/0x170 [ 7176.034775][ T253] do_syscall_64+0xc6/0x1e0 [ 7176.034775][ T253] [ 7176.036985][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7176.036985][ T253] netdev_get_by_index+0x5e/0x80 [ 7176.036985][ T253] fib6_nh_init+0x3d8/0x1580 [ 7176.036985][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7176.036985][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7176.036985][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7176.036985][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7176.036985][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7176.036985][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7176.036985][ T253] addrconf_dad_begin+0x310/0x670 [ 7176.036985][ T253] addrconf_dad_work+0x10b/0xab0 [ 7176.036985][ T253] process_one_work+0x84d/0x18a0 [ 7176.036985][ T253] worker_thread+0x587/0xd30 [ 7176.036985][ T253] kthread+0x28a/0x350 [ 7176.036985][ T253] ret_from_fork+0x31/0x70 [ 7176.036985][ T253] ret_from_fork_asm+0x1a/0x30 [ 7176.036985][ T253] [ 7176.039132][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7176.039132][ T253] netdev_get_by_index+0x5e/0x80 [ 7176.039132][ T253] fib6_nh_init+0x3d8/0x1580 [ 7176.039132][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7176.039132][ T253] ip6_route_add+0x1c/0x140 [ 7176.039132][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7176.039132][ T253] inet6_addr_add+0x4f8/0xa40 [ 7176.039132][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7176.039132][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7176.039132][ T253] netlink_rcv_skb+0x130/0x360 [ 7176.039132][ T253] netlink_unicast+0x449/0x710 [ 7176.039132][ T253] netlink_sendmsg+0x723/0xbe0 [ 7176.039132][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7176.039132][ T253] ___sys_sendmsg+0xee/0x170 [ 7176.039132][ T253] __sys_sendmsg+0xcd/0x170 [ 7176.039132][ T253] do_syscall_64+0xc6/0x1e0 [ 7176.039132][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7176.039132][ T253] [ 7176.041379][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7176.041379][ T253] netdev_get_by_index+0x5e/0x80 [ 7176.041379][ T253] fib6_nh_init+0x3d8/0x1580 [ 7176.041379][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7176.041379][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7176.041379][ T253] ipv6_add_addr+0x411/0x2000 [ 7176.041379][ T253] inet6_addr_add+0x30e/0xa40 [ 7176.041379][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7176.041379][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7176.041379][ T253] netlink_rcv_skb+0x130/0x360 [ 7176.041379][ T253] netlink_unicast+0x449/0x710 [ 7176.041379][ T253] netlink_sendmsg+0x723/0xbe0 [ 7176.041379][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7176.041379][ T253] ___sys_sendmsg+0xee/0x170 [ 7176.041379][ T253] __sys_sendmsg+0xcd/0x170 [ 7176.041379][ T253] do_syscall_64+0xc6/0x1e0 [ 7176.041379][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7176.041379][ T253] [ 7176.043630][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7176.043630][ T253] netdev_get_by_index+0x5e/0x80 [ 7176.043630][ T253] fib6_nh_init+0x3d8/0x1580 [ 7176.043630][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7176.043630][ T253] ip6_route_add+0x1c/0x140 [ 7176.043630][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7176.043630][ T253] addrconf_add_dev+0xe2/0x170 [ 7176.043630][ T253] inet6_addr_add+0x12f/0xa40 [ 7176.043630][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7176.043630][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7176.043630][ T253] netlink_rcv_skb+0x130/0x360 [ 7176.043630][ T253] netlink_unicast+0x449/0x710 [ 7176.043630][ T253] netlink_sendmsg+0x723/0xbe0 [ 7176.043630][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7176.043630][ T253] ___sys_sendmsg+0xee/0x170 [ 7176.043630][ T253] __sys_sendmsg+0xcd/0x170 [ 7176.043630][ T253] do_syscall_64+0xc6/0x1e0 [ 7176.043630][ T253] [ 7176.045829][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7176.045829][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7176.045829][ T253] ipv6_find_idev+0x102/0x170 [ 7176.045829][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7176.045829][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7176.045829][ T253] netlink_rcv_skb+0x130/0x360 [ 7176.045829][ T253] netlink_unicast+0x449/0x710 [ 7176.045829][ T253] netlink_sendmsg+0x723/0xbe0 [ 7176.045829][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7176.045829][ T253] ___sys_sendmsg+0xee/0x170 [ 7176.045829][ T253] __sys_sendmsg+0xcd/0x170 [ 7176.045829][ T253] do_syscall_64+0xc6/0x1e0 [ 7176.045829][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7176.045829][ T253] [ 7176.047634][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7176.047634][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7176.047634][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7176.047634][ T253] ipv6_find_idev+0x102/0x170 [ 7176.047634][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7176.047634][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7176.047634][ T253] netlink_rcv_skb+0x130/0x360 [ 7176.047634][ T253] netlink_unicast+0x449/0x710 [ 7176.047634][ T253] netlink_sendmsg+0x723/0xbe0 [ 7176.047634][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7176.047634][ T253] ___sys_sendmsg+0xee/0x170 [ 7176.047634][ T253] __sys_sendmsg+0xcd/0x170 [ 7176.047634][ T253] do_syscall_64+0xc6/0x1e0 [ 7176.047634][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7176.047634][ T253] [ 7186.290447][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7186.290916][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7186.290916][ T253] dst_init+0x84/0x4a0 [ 7186.290916][ T253] dst_alloc+0x97/0x150 [ 7186.290916][ T253] ip6_dst_alloc+0x23/0x90 [ 7186.290916][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7186.290916][ T253] ip6_pol_route+0x56f/0x840 [ 7186.290916][ T253] fib6_rule_lookup+0x334/0x630 [ 7186.290916][ T253] ip6_route_output_flags+0x259/0x480 [ 7186.290916][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7186.290916][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7186.290916][ T253] netlink_rcv_skb+0x130/0x360 [ 7186.290916][ T253] netlink_unicast+0x449/0x710 [ 7186.290916][ T253] netlink_sendmsg+0x723/0xbe0 [ 7186.290916][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7186.290916][ T253] ___sys_sendmsg+0xee/0x170 [ 7186.290916][ T253] __sys_sendmsg+0xcd/0x170 [ 7186.290916][ T253] do_syscall_64+0xc6/0x1e0 [ 7186.290916][ T253] [ 7186.293090][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7186.293090][ T253] netdev_get_by_index+0x5e/0x80 [ 7186.293090][ T253] fib6_nh_init+0x3d8/0x1580 [ 7186.293090][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7186.293090][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7186.293090][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7186.293090][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7186.293090][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7186.293090][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7186.293090][ T253] addrconf_dad_begin+0x310/0x670 [ 7186.293090][ T253] addrconf_dad_work+0x10b/0xab0 [ 7186.293090][ T253] process_one_work+0x84d/0x18a0 [ 7186.293090][ T253] worker_thread+0x587/0xd30 [ 7186.293090][ T253] kthread+0x28a/0x350 [ 7186.293090][ T253] ret_from_fork+0x31/0x70 [ 7186.293090][ T253] ret_from_fork_asm+0x1a/0x30 [ 7186.293090][ T253] [ 7186.295241][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7186.295241][ T253] netdev_get_by_index+0x5e/0x80 [ 7186.295241][ T253] fib6_nh_init+0x3d8/0x1580 [ 7186.295241][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7186.295241][ T253] ip6_route_add+0x1c/0x140 [ 7186.295241][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7186.295241][ T253] inet6_addr_add+0x4f8/0xa40 [ 7186.295241][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7186.295241][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7186.295241][ T253] netlink_rcv_skb+0x130/0x360 [ 7186.295241][ T253] netlink_unicast+0x449/0x710 [ 7186.295241][ T253] netlink_sendmsg+0x723/0xbe0 [ 7186.295241][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7186.295241][ T253] ___sys_sendmsg+0xee/0x170 [ 7186.295241][ T253] __sys_sendmsg+0xcd/0x170 [ 7186.295241][ T253] do_syscall_64+0xc6/0x1e0 [ 7186.295241][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7186.295241][ T253] [ 7186.297484][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7186.297484][ T253] netdev_get_by_index+0x5e/0x80 [ 7186.297484][ T253] fib6_nh_init+0x3d8/0x1580 [ 7186.297484][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7186.297484][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7186.297484][ T253] ipv6_add_addr+0x411/0x2000 [ 7186.297484][ T253] inet6_addr_add+0x30e/0xa40 [ 7186.297484][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7186.297484][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7186.297484][ T253] netlink_rcv_skb+0x130/0x360 [ 7186.297484][ T253] netlink_unicast+0x449/0x710 [ 7186.297484][ T253] netlink_sendmsg+0x723/0xbe0 [ 7186.297484][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7186.297484][ T253] ___sys_sendmsg+0xee/0x170 [ 7186.297484][ T253] __sys_sendmsg+0xcd/0x170 [ 7186.297484][ T253] do_syscall_64+0xc6/0x1e0 [ 7186.297484][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7186.297484][ T253] [ 7186.299685][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7186.299685][ T253] netdev_get_by_index+0x5e/0x80 [ 7186.299685][ T253] fib6_nh_init+0x3d8/0x1580 [ 7186.299685][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7186.299685][ T253] ip6_route_add+0x1c/0x140 [ 7186.299685][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7186.299685][ T253] addrconf_add_dev+0xe2/0x170 [ 7186.299685][ T253] inet6_addr_add+0x12f/0xa40 [ 7186.299685][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7186.299685][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7186.299685][ T253] netlink_rcv_skb+0x130/0x360 [ 7186.299685][ T253] netlink_unicast+0x449/0x710 [ 7186.299685][ T253] netlink_sendmsg+0x723/0xbe0 [ 7186.299685][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7186.299685][ T253] ___sys_sendmsg+0xee/0x170 [ 7186.299685][ T253] __sys_sendmsg+0xcd/0x170 [ 7186.299685][ T253] do_syscall_64+0xc6/0x1e0 [ 7186.299685][ T253] [ 7186.301865][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7186.301865][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7186.301865][ T253] ipv6_find_idev+0x102/0x170 [ 7186.301865][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7186.301865][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7186.301865][ T253] netlink_rcv_skb+0x130/0x360 [ 7186.301865][ T253] netlink_unicast+0x449/0x710 [ 7186.301865][ T253] netlink_sendmsg+0x723/0xbe0 [ 7186.301865][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7186.301865][ T253] ___sys_sendmsg+0xee/0x170 [ 7186.301865][ T253] __sys_sendmsg+0xcd/0x170 [ 7186.301865][ T253] do_syscall_64+0xc6/0x1e0 [ 7186.301865][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7186.301865][ T253] [ 7186.303709][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7186.303709][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7186.303709][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7186.303709][ T253] ipv6_find_idev+0x102/0x170 [ 7186.303709][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7186.303709][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7186.303709][ T253] netlink_rcv_skb+0x130/0x360 [ 7186.303709][ T253] netlink_unicast+0x449/0x710 [ 7186.303709][ T253] netlink_sendmsg+0x723/0xbe0 [ 7186.303709][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7186.303709][ T253] ___sys_sendmsg+0xee/0x170 [ 7186.303709][ T253] __sys_sendmsg+0xcd/0x170 [ 7186.303709][ T253] do_syscall_64+0xc6/0x1e0 [ 7186.303709][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7186.303709][ T253] [ 7196.546342][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7196.546810][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7196.546810][ T253] dst_init+0x84/0x4a0 [ 7196.546810][ T253] dst_alloc+0x97/0x150 [ 7196.546810][ T253] ip6_dst_alloc+0x23/0x90 [ 7196.546810][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7196.546810][ T253] ip6_pol_route+0x56f/0x840 [ 7196.546810][ T253] fib6_rule_lookup+0x334/0x630 [ 7196.546810][ T253] ip6_route_output_flags+0x259/0x480 [ 7196.546810][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7196.546810][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7196.546810][ T253] netlink_rcv_skb+0x130/0x360 [ 7196.546810][ T253] netlink_unicast+0x449/0x710 [ 7196.546810][ T253] netlink_sendmsg+0x723/0xbe0 [ 7196.546810][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7196.546810][ T253] ___sys_sendmsg+0xee/0x170 [ 7196.546810][ T253] __sys_sendmsg+0xcd/0x170 [ 7196.546810][ T253] do_syscall_64+0xc6/0x1e0 [ 7196.546810][ T253] [ 7196.549015][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7196.549015][ T253] netdev_get_by_index+0x5e/0x80 [ 7196.549015][ T253] fib6_nh_init+0x3d8/0x1580 [ 7196.549015][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7196.549015][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7196.549015][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7196.549015][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7196.549015][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7196.549015][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7196.549015][ T253] addrconf_dad_begin+0x310/0x670 [ 7196.549015][ T253] addrconf_dad_work+0x10b/0xab0 [ 7196.549015][ T253] process_one_work+0x84d/0x18a0 [ 7196.549015][ T253] worker_thread+0x587/0xd30 [ 7196.549015][ T253] kthread+0x28a/0x350 [ 7196.549015][ T253] ret_from_fork+0x31/0x70 [ 7196.549015][ T253] ret_from_fork_asm+0x1a/0x30 [ 7196.549015][ T253] [ 7196.551157][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7196.551157][ T253] netdev_get_by_index+0x5e/0x80 [ 7196.551157][ T253] fib6_nh_init+0x3d8/0x1580 [ 7196.551157][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7196.551157][ T253] ip6_route_add+0x1c/0x140 [ 7196.551157][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7196.551157][ T253] inet6_addr_add+0x4f8/0xa40 [ 7196.551157][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7196.551157][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7196.551157][ T253] netlink_rcv_skb+0x130/0x360 [ 7196.551157][ T253] netlink_unicast+0x449/0x710 [ 7196.551157][ T253] netlink_sendmsg+0x723/0xbe0 [ 7196.551157][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7196.551157][ T253] ___sys_sendmsg+0xee/0x170 [ 7196.551157][ T253] __sys_sendmsg+0xcd/0x170 [ 7196.551157][ T253] do_syscall_64+0xc6/0x1e0 [ 7196.551157][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7196.551157][ T253] [ 7196.553519][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7196.553519][ T253] netdev_get_by_index+0x5e/0x80 [ 7196.553519][ T253] fib6_nh_init+0x3d8/0x1580 [ 7196.553519][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7196.553519][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7196.553519][ T253] ipv6_add_addr+0x411/0x2000 [ 7196.553519][ T253] inet6_addr_add+0x30e/0xa40 [ 7196.553519][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7196.553519][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7196.553519][ T253] netlink_rcv_skb+0x130/0x360 [ 7196.553519][ T253] netlink_unicast+0x449/0x710 [ 7196.553519][ T253] netlink_sendmsg+0x723/0xbe0 [ 7196.553519][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7196.553519][ T253] ___sys_sendmsg+0xee/0x170 [ 7196.553519][ T253] __sys_sendmsg+0xcd/0x170 [ 7196.553519][ T253] do_syscall_64+0xc6/0x1e0 [ 7196.553519][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7196.553519][ T253] [ 7196.555762][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7196.555762][ T253] netdev_get_by_index+0x5e/0x80 [ 7196.555762][ T253] fib6_nh_init+0x3d8/0x1580 [ 7196.555762][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7196.555762][ T253] ip6_route_add+0x1c/0x140 [ 7196.555762][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7196.555762][ T253] addrconf_add_dev+0xe2/0x170 [ 7196.555762][ T253] inet6_addr_add+0x12f/0xa40 [ 7196.555762][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7196.555762][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7196.555762][ T253] netlink_rcv_skb+0x130/0x360 [ 7196.555762][ T253] netlink_unicast+0x449/0x710 [ 7196.555762][ T253] netlink_sendmsg+0x723/0xbe0 [ 7196.555762][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7196.555762][ T253] ___sys_sendmsg+0xee/0x170 [ 7196.555762][ T253] __sys_sendmsg+0xcd/0x170 [ 7196.555762][ T253] do_syscall_64+0xc6/0x1e0 [ 7196.555762][ T253] [ 7196.557964][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7196.557964][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7196.557964][ T253] ipv6_find_idev+0x102/0x170 [ 7196.557964][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7196.557964][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7196.557964][ T253] netlink_rcv_skb+0x130/0x360 [ 7196.557964][ T253] netlink_unicast+0x449/0x710 [ 7196.557964][ T253] netlink_sendmsg+0x723/0xbe0 [ 7196.557964][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7196.557964][ T253] ___sys_sendmsg+0xee/0x170 [ 7196.557964][ T253] __sys_sendmsg+0xcd/0x170 [ 7196.557964][ T253] do_syscall_64+0xc6/0x1e0 [ 7196.557964][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7196.557964][ T253] [ 7196.559689][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7196.559689][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7196.559689][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7196.559689][ T253] ipv6_find_idev+0x102/0x170 [ 7196.559689][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7196.559689][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7196.559689][ T253] netlink_rcv_skb+0x130/0x360 [ 7196.559689][ T253] netlink_unicast+0x449/0x710 [ 7196.559689][ T253] netlink_sendmsg+0x723/0xbe0 [ 7196.559689][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7196.559689][ T253] ___sys_sendmsg+0xee/0x170 [ 7196.559689][ T253] __sys_sendmsg+0xcd/0x170 [ 7196.559689][ T253] do_syscall_64+0xc6/0x1e0 [ 7196.559689][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7196.559689][ T253] [ 7206.802300][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7206.802793][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7206.802793][ T253] dst_init+0x84/0x4a0 [ 7206.802793][ T253] dst_alloc+0x97/0x150 [ 7206.802793][ T253] ip6_dst_alloc+0x23/0x90 [ 7206.802793][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7206.802793][ T253] ip6_pol_route+0x56f/0x840 [ 7206.802793][ T253] fib6_rule_lookup+0x334/0x630 [ 7206.802793][ T253] ip6_route_output_flags+0x259/0x480 [ 7206.802793][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7206.802793][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7206.802793][ T253] netlink_rcv_skb+0x130/0x360 [ 7206.802793][ T253] netlink_unicast+0x449/0x710 [ 7206.802793][ T253] netlink_sendmsg+0x723/0xbe0 [ 7206.802793][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7206.802793][ T253] ___sys_sendmsg+0xee/0x170 [ 7206.802793][ T253] __sys_sendmsg+0xcd/0x170 [ 7206.802793][ T253] do_syscall_64+0xc6/0x1e0 [ 7206.802793][ T253] [ 7206.805015][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7206.805015][ T253] netdev_get_by_index+0x5e/0x80 [ 7206.805015][ T253] fib6_nh_init+0x3d8/0x1580 [ 7206.805015][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7206.805015][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7206.805015][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7206.805015][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7206.805015][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7206.805015][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7206.805015][ T253] addrconf_dad_begin+0x310/0x670 [ 7206.805015][ T253] addrconf_dad_work+0x10b/0xab0 [ 7206.805015][ T253] process_one_work+0x84d/0x18a0 [ 7206.805015][ T253] worker_thread+0x587/0xd30 [ 7206.805015][ T253] kthread+0x28a/0x350 [ 7206.805015][ T253] ret_from_fork+0x31/0x70 [ 7206.805015][ T253] ret_from_fork_asm+0x1a/0x30 [ 7206.805015][ T253] [ 7206.807173][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7206.807173][ T253] netdev_get_by_index+0x5e/0x80 [ 7206.807173][ T253] fib6_nh_init+0x3d8/0x1580 [ 7206.807173][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7206.807173][ T253] ip6_route_add+0x1c/0x140 [ 7206.807173][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7206.807173][ T253] inet6_addr_add+0x4f8/0xa40 [ 7206.807173][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7206.807173][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7206.807173][ T253] netlink_rcv_skb+0x130/0x360 [ 7206.807173][ T253] netlink_unicast+0x449/0x710 [ 7206.807173][ T253] netlink_sendmsg+0x723/0xbe0 [ 7206.807173][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7206.807173][ T253] ___sys_sendmsg+0xee/0x170 [ 7206.807173][ T253] __sys_sendmsg+0xcd/0x170 [ 7206.807173][ T253] do_syscall_64+0xc6/0x1e0 [ 7206.807173][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7206.807173][ T253] [ 7206.809463][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7206.809463][ T253] netdev_get_by_index+0x5e/0x80 [ 7206.809463][ T253] fib6_nh_init+0x3d8/0x1580 [ 7206.809463][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7206.809463][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7206.809463][ T253] ipv6_add_addr+0x411/0x2000 [ 7206.809463][ T253] inet6_addr_add+0x30e/0xa40 [ 7206.809463][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7206.809463][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7206.809463][ T253] netlink_rcv_skb+0x130/0x360 [ 7206.809463][ T253] netlink_unicast+0x449/0x710 [ 7206.809463][ T253] netlink_sendmsg+0x723/0xbe0 [ 7206.809463][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7206.809463][ T253] ___sys_sendmsg+0xee/0x170 [ 7206.809463][ T253] __sys_sendmsg+0xcd/0x170 [ 7206.809463][ T253] do_syscall_64+0xc6/0x1e0 [ 7206.809463][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7206.809463][ T253] [ 7206.811701][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7206.811701][ T253] netdev_get_by_index+0x5e/0x80 [ 7206.811701][ T253] fib6_nh_init+0x3d8/0x1580 [ 7206.811701][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7206.811701][ T253] ip6_route_add+0x1c/0x140 [ 7206.811701][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7206.811701][ T253] addrconf_add_dev+0xe2/0x170 [ 7206.811701][ T253] inet6_addr_add+0x12f/0xa40 [ 7206.811701][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7206.811701][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7206.811701][ T253] netlink_rcv_skb+0x130/0x360 [ 7206.811701][ T253] netlink_unicast+0x449/0x710 [ 7206.811701][ T253] netlink_sendmsg+0x723/0xbe0 [ 7206.811701][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7206.811701][ T253] ___sys_sendmsg+0xee/0x170 [ 7206.811701][ T253] __sys_sendmsg+0xcd/0x170 [ 7206.811701][ T253] do_syscall_64+0xc6/0x1e0 [ 7206.811701][ T253] [ 7206.813902][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7206.813902][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7206.813902][ T253] ipv6_find_idev+0x102/0x170 [ 7206.813902][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7206.813902][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7206.813902][ T253] netlink_rcv_skb+0x130/0x360 [ 7206.813902][ T253] netlink_unicast+0x449/0x710 [ 7206.813902][ T253] netlink_sendmsg+0x723/0xbe0 [ 7206.813902][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7206.813902][ T253] ___sys_sendmsg+0xee/0x170 [ 7206.813902][ T253] __sys_sendmsg+0xcd/0x170 [ 7206.813902][ T253] do_syscall_64+0xc6/0x1e0 [ 7206.813902][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7206.813902][ T253] [ 7206.815637][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7206.815637][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7206.815637][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7206.815637][ T253] ipv6_find_idev+0x102/0x170 [ 7206.815637][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7206.815637][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7206.815637][ T253] netlink_rcv_skb+0x130/0x360 [ 7206.815637][ T253] netlink_unicast+0x449/0x710 [ 7206.815637][ T253] netlink_sendmsg+0x723/0xbe0 [ 7206.815637][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7206.815637][ T253] ___sys_sendmsg+0xee/0x170 [ 7206.815637][ T253] __sys_sendmsg+0xcd/0x170 [ 7206.815637][ T253] do_syscall_64+0xc6/0x1e0 [ 7206.815637][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7206.815637][ T253] [ 7216.994237][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7216.994707][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7216.994707][ T253] dst_init+0x84/0x4a0 [ 7216.994707][ T253] dst_alloc+0x97/0x150 [ 7216.994707][ T253] ip6_dst_alloc+0x23/0x90 [ 7216.994707][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7216.994707][ T253] ip6_pol_route+0x56f/0x840 [ 7216.994707][ T253] fib6_rule_lookup+0x334/0x630 [ 7216.994707][ T253] ip6_route_output_flags+0x259/0x480 [ 7216.994707][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7216.994707][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7216.994707][ T253] netlink_rcv_skb+0x130/0x360 [ 7216.994707][ T253] netlink_unicast+0x449/0x710 [ 7216.994707][ T253] netlink_sendmsg+0x723/0xbe0 [ 7216.994707][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7216.994707][ T253] ___sys_sendmsg+0xee/0x170 [ 7216.994707][ T253] __sys_sendmsg+0xcd/0x170 [ 7216.994707][ T253] do_syscall_64+0xc6/0x1e0 [ 7216.994707][ T253] [ 7216.996911][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7216.996911][ T253] netdev_get_by_index+0x5e/0x80 [ 7216.996911][ T253] fib6_nh_init+0x3d8/0x1580 [ 7216.996911][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7216.996911][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7216.996911][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7216.996911][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7216.996911][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7216.996911][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7216.996911][ T253] addrconf_dad_begin+0x310/0x670 [ 7216.996911][ T253] addrconf_dad_work+0x10b/0xab0 [ 7216.996911][ T253] process_one_work+0x84d/0x18a0 [ 7216.996911][ T253] worker_thread+0x587/0xd30 [ 7216.996911][ T253] kthread+0x28a/0x350 [ 7216.996911][ T253] ret_from_fork+0x31/0x70 [ 7216.996911][ T253] ret_from_fork_asm+0x1a/0x30 [ 7216.996911][ T253] [ 7216.999054][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7216.999054][ T253] netdev_get_by_index+0x5e/0x80 [ 7216.999054][ T253] fib6_nh_init+0x3d8/0x1580 [ 7216.999054][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7216.999054][ T253] ip6_route_add+0x1c/0x140 [ 7216.999054][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7216.999054][ T253] inet6_addr_add+0x4f8/0xa40 [ 7216.999054][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7216.999054][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7216.999054][ T253] netlink_rcv_skb+0x130/0x360 [ 7216.999054][ T253] netlink_unicast+0x449/0x710 [ 7216.999054][ T253] netlink_sendmsg+0x723/0xbe0 [ 7216.999054][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7216.999054][ T253] ___sys_sendmsg+0xee/0x170 [ 7216.999054][ T253] __sys_sendmsg+0xcd/0x170 [ 7216.999054][ T253] do_syscall_64+0xc6/0x1e0 [ 7216.999054][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7216.999054][ T253] [ 7217.001292][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7217.001292][ T253] netdev_get_by_index+0x5e/0x80 [ 7217.001292][ T253] fib6_nh_init+0x3d8/0x1580 [ 7217.001292][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7217.001292][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7217.001292][ T253] ipv6_add_addr+0x411/0x2000 [ 7217.001292][ T253] inet6_addr_add+0x30e/0xa40 [ 7217.001292][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7217.001292][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7217.001292][ T253] netlink_rcv_skb+0x130/0x360 [ 7217.001292][ T253] netlink_unicast+0x449/0x710 [ 7217.001292][ T253] netlink_sendmsg+0x723/0xbe0 [ 7217.001292][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7217.001292][ T253] ___sys_sendmsg+0xee/0x170 [ 7217.001292][ T253] __sys_sendmsg+0xcd/0x170 [ 7217.001292][ T253] do_syscall_64+0xc6/0x1e0 [ 7217.001292][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7217.001292][ T253] [ 7217.003519][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7217.003519][ T253] netdev_get_by_index+0x5e/0x80 [ 7217.003519][ T253] fib6_nh_init+0x3d8/0x1580 [ 7217.003519][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7217.003519][ T253] ip6_route_add+0x1c/0x140 [ 7217.003519][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7217.003519][ T253] addrconf_add_dev+0xe2/0x170 [ 7217.003519][ T253] inet6_addr_add+0x12f/0xa40 [ 7217.003519][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7217.003519][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7217.003519][ T253] netlink_rcv_skb+0x130/0x360 [ 7217.003519][ T253] netlink_unicast+0x449/0x710 [ 7217.003519][ T253] netlink_sendmsg+0x723/0xbe0 [ 7217.003519][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7217.003519][ T253] ___sys_sendmsg+0xee/0x170 [ 7217.003519][ T253] __sys_sendmsg+0xcd/0x170 [ 7217.003519][ T253] do_syscall_64+0xc6/0x1e0 [ 7217.003519][ T253] [ 7217.005714][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7217.005714][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7217.005714][ T253] ipv6_find_idev+0x102/0x170 [ 7217.005714][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7217.005714][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7217.005714][ T253] netlink_rcv_skb+0x130/0x360 [ 7217.005714][ T253] netlink_unicast+0x449/0x710 [ 7217.005714][ T253] netlink_sendmsg+0x723/0xbe0 [ 7217.005714][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7217.005714][ T253] ___sys_sendmsg+0xee/0x170 [ 7217.005714][ T253] __sys_sendmsg+0xcd/0x170 [ 7217.005714][ T253] do_syscall_64+0xc6/0x1e0 [ 7217.005714][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7217.005714][ T253] [ 7217.007476][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7217.007476][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7217.007476][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7217.007476][ T253] ipv6_find_idev+0x102/0x170 [ 7217.007476][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7217.007476][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7217.007476][ T253] netlink_rcv_skb+0x130/0x360 [ 7217.007476][ T253] netlink_unicast+0x449/0x710 [ 7217.007476][ T253] netlink_sendmsg+0x723/0xbe0 [ 7217.007476][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7217.007476][ T253] ___sys_sendmsg+0xee/0x170 [ 7217.007476][ T253] __sys_sendmsg+0xcd/0x170 [ 7217.007476][ T253] do_syscall_64+0xc6/0x1e0 [ 7217.007476][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7217.007476][ T253] [ 7227.210382][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7227.210816][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7227.210816][ T253] dst_init+0x84/0x4a0 [ 7227.210816][ T253] dst_alloc+0x97/0x150 [ 7227.210816][ T253] ip6_dst_alloc+0x23/0x90 [ 7227.210816][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7227.210816][ T253] ip6_pol_route+0x56f/0x840 [ 7227.210816][ T253] fib6_rule_lookup+0x334/0x630 [ 7227.210816][ T253] ip6_route_output_flags+0x259/0x480 [ 7227.210816][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7227.210816][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7227.210816][ T253] netlink_rcv_skb+0x130/0x360 [ 7227.210816][ T253] netlink_unicast+0x449/0x710 [ 7227.210816][ T253] netlink_sendmsg+0x723/0xbe0 [ 7227.210816][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7227.210816][ T253] ___sys_sendmsg+0xee/0x170 [ 7227.210816][ T253] __sys_sendmsg+0xcd/0x170 [ 7227.210816][ T253] do_syscall_64+0xc6/0x1e0 [ 7227.210816][ T253] [ 7227.213024][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7227.213024][ T253] netdev_get_by_index+0x5e/0x80 [ 7227.213024][ T253] fib6_nh_init+0x3d8/0x1580 [ 7227.213024][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7227.213024][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7227.213024][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7227.213024][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7227.213024][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7227.213024][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7227.213024][ T253] addrconf_dad_begin+0x310/0x670 [ 7227.213024][ T253] addrconf_dad_work+0x10b/0xab0 [ 7227.213024][ T253] process_one_work+0x84d/0x18a0 [ 7227.213024][ T253] worker_thread+0x587/0xd30 [ 7227.213024][ T253] kthread+0x28a/0x350 [ 7227.213024][ T253] ret_from_fork+0x31/0x70 [ 7227.213024][ T253] ret_from_fork_asm+0x1a/0x30 [ 7227.213024][ T253] [ 7227.215178][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7227.215178][ T253] netdev_get_by_index+0x5e/0x80 [ 7227.215178][ T253] fib6_nh_init+0x3d8/0x1580 [ 7227.215178][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7227.215178][ T253] ip6_route_add+0x1c/0x140 [ 7227.215178][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7227.215178][ T253] inet6_addr_add+0x4f8/0xa40 [ 7227.215178][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7227.215178][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7227.215178][ T253] netlink_rcv_skb+0x130/0x360 [ 7227.215178][ T253] netlink_unicast+0x449/0x710 [ 7227.215178][ T253] netlink_sendmsg+0x723/0xbe0 [ 7227.215178][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7227.215178][ T253] ___sys_sendmsg+0xee/0x170 [ 7227.215178][ T253] __sys_sendmsg+0xcd/0x170 [ 7227.215178][ T253] do_syscall_64+0xc6/0x1e0 [ 7227.215178][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7227.215178][ T253] [ 7227.217440][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7227.217440][ T253] netdev_get_by_index+0x5e/0x80 [ 7227.217440][ T253] fib6_nh_init+0x3d8/0x1580 [ 7227.217440][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7227.217440][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7227.217440][ T253] ipv6_add_addr+0x411/0x2000 [ 7227.217440][ T253] inet6_addr_add+0x30e/0xa40 [ 7227.217440][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7227.217440][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7227.217440][ T253] netlink_rcv_skb+0x130/0x360 [ 7227.217440][ T253] netlink_unicast+0x449/0x710 [ 7227.217440][ T253] netlink_sendmsg+0x723/0xbe0 [ 7227.217440][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7227.217440][ T253] ___sys_sendmsg+0xee/0x170 [ 7227.217440][ T253] __sys_sendmsg+0xcd/0x170 [ 7227.217440][ T253] do_syscall_64+0xc6/0x1e0 [ 7227.217440][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7227.217440][ T253] [ 7227.219682][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7227.219682][ T253] netdev_get_by_index+0x5e/0x80 [ 7227.219682][ T253] fib6_nh_init+0x3d8/0x1580 [ 7227.219682][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7227.219682][ T253] ip6_route_add+0x1c/0x140 [ 7227.219682][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7227.219682][ T253] addrconf_add_dev+0xe2/0x170 [ 7227.219682][ T253] inet6_addr_add+0x12f/0xa40 [ 7227.219682][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7227.219682][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7227.219682][ T253] netlink_rcv_skb+0x130/0x360 [ 7227.219682][ T253] netlink_unicast+0x449/0x710 [ 7227.219682][ T253] netlink_sendmsg+0x723/0xbe0 [ 7227.219682][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7227.219682][ T253] ___sys_sendmsg+0xee/0x170 [ 7227.219682][ T253] __sys_sendmsg+0xcd/0x170 [ 7227.219682][ T253] do_syscall_64+0xc6/0x1e0 [ 7227.219682][ T253] [ 7227.221882][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7227.221882][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7227.221882][ T253] ipv6_find_idev+0x102/0x170 [ 7227.221882][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7227.221882][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7227.221882][ T253] netlink_rcv_skb+0x130/0x360 [ 7227.221882][ T253] netlink_unicast+0x449/0x710 [ 7227.221882][ T253] netlink_sendmsg+0x723/0xbe0 [ 7227.221882][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7227.221882][ T253] ___sys_sendmsg+0xee/0x170 [ 7227.221882][ T253] __sys_sendmsg+0xcd/0x170 [ 7227.221882][ T253] do_syscall_64+0xc6/0x1e0 [ 7227.221882][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7227.221882][ T253] [ 7227.223601][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7227.223601][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7227.223601][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7227.223601][ T253] ipv6_find_idev+0x102/0x170 [ 7227.223601][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7227.223601][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7227.223601][ T253] netlink_rcv_skb+0x130/0x360 [ 7227.223601][ T253] netlink_unicast+0x449/0x710 [ 7227.223601][ T253] netlink_sendmsg+0x723/0xbe0 [ 7227.223601][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7227.223601][ T253] ___sys_sendmsg+0xee/0x170 [ 7227.223601][ T253] __sys_sendmsg+0xcd/0x170 [ 7227.223601][ T253] do_syscall_64+0xc6/0x1e0 [ 7227.223601][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7227.223601][ T253] [ 7237.466241][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7237.466697][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7237.466697][ T253] dst_init+0x84/0x4a0 [ 7237.466697][ T253] dst_alloc+0x97/0x150 [ 7237.466697][ T253] ip6_dst_alloc+0x23/0x90 [ 7237.466697][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7237.466697][ T253] ip6_pol_route+0x56f/0x840 [ 7237.466697][ T253] fib6_rule_lookup+0x334/0x630 [ 7237.466697][ T253] ip6_route_output_flags+0x259/0x480 [ 7237.466697][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7237.466697][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7237.466697][ T253] netlink_rcv_skb+0x130/0x360 [ 7237.466697][ T253] netlink_unicast+0x449/0x710 [ 7237.466697][ T253] netlink_sendmsg+0x723/0xbe0 [ 7237.466697][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7237.466697][ T253] ___sys_sendmsg+0xee/0x170 [ 7237.466697][ T253] __sys_sendmsg+0xcd/0x170 [ 7237.466697][ T253] do_syscall_64+0xc6/0x1e0 [ 7237.466697][ T253] [ 7237.469107][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7237.469107][ T253] netdev_get_by_index+0x5e/0x80 [ 7237.469107][ T253] fib6_nh_init+0x3d8/0x1580 [ 7237.469107][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7237.469107][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7237.469107][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7237.469107][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7237.469107][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7237.469107][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7237.469107][ T253] addrconf_dad_begin+0x310/0x670 [ 7237.469107][ T253] addrconf_dad_work+0x10b/0xab0 [ 7237.469107][ T253] process_one_work+0x84d/0x18a0 [ 7237.469107][ T253] worker_thread+0x587/0xd30 [ 7237.469107][ T253] kthread+0x28a/0x350 [ 7237.469107][ T253] ret_from_fork+0x31/0x70 [ 7237.469107][ T253] ret_from_fork_asm+0x1a/0x30 [ 7237.469107][ T253] [ 7237.471471][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7237.471471][ T253] netdev_get_by_index+0x5e/0x80 [ 7237.471471][ T253] fib6_nh_init+0x3d8/0x1580 [ 7237.471471][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7237.471471][ T253] ip6_route_add+0x1c/0x140 [ 7237.471471][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7237.471471][ T253] inet6_addr_add+0x4f8/0xa40 [ 7237.471471][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7237.471471][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7237.471471][ T253] netlink_rcv_skb+0x130/0x360 [ 7237.471471][ T253] netlink_unicast+0x449/0x710 [ 7237.471471][ T253] netlink_sendmsg+0x723/0xbe0 [ 7237.471471][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7237.471471][ T253] ___sys_sendmsg+0xee/0x170 [ 7237.471471][ T253] __sys_sendmsg+0xcd/0x170 [ 7237.471471][ T253] do_syscall_64+0xc6/0x1e0 [ 7237.471471][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7237.471471][ T253] [ 7237.473924][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7237.473924][ T253] netdev_get_by_index+0x5e/0x80 [ 7237.473924][ T253] fib6_nh_init+0x3d8/0x1580 [ 7237.473924][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7237.473924][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7237.473924][ T253] ipv6_add_addr+0x411/0x2000 [ 7237.473924][ T253] inet6_addr_add+0x30e/0xa40 [ 7237.473924][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7237.473924][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7237.473924][ T253] netlink_rcv_skb+0x130/0x360 [ 7237.473924][ T253] netlink_unicast+0x449/0x710 [ 7237.473924][ T253] netlink_sendmsg+0x723/0xbe0 [ 7237.473924][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7237.473924][ T253] ___sys_sendmsg+0xee/0x170 [ 7237.473924][ T253] __sys_sendmsg+0xcd/0x170 [ 7237.473924][ T253] do_syscall_64+0xc6/0x1e0 [ 7237.473924][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7237.473924][ T253] [ 7237.476389][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7237.476389][ T253] netdev_get_by_index+0x5e/0x80 [ 7237.476389][ T253] fib6_nh_init+0x3d8/0x1580 [ 7237.476389][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7237.476389][ T253] ip6_route_add+0x1c/0x140 [ 7237.476389][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7237.476389][ T253] addrconf_add_dev+0xe2/0x170 [ 7237.476389][ T253] inet6_addr_add+0x12f/0xa40 [ 7237.476389][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7237.476389][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7237.476389][ T253] netlink_rcv_skb+0x130/0x360 [ 7237.476389][ T253] netlink_unicast+0x449/0x710 [ 7237.476389][ T253] netlink_sendmsg+0x723/0xbe0 [ 7237.476389][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7237.476389][ T253] ___sys_sendmsg+0xee/0x170 [ 7237.476389][ T253] __sys_sendmsg+0xcd/0x170 [ 7237.476389][ T253] do_syscall_64+0xc6/0x1e0 [ 7237.476389][ T253] [ 7237.478797][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7237.478797][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7237.478797][ T253] ipv6_find_idev+0x102/0x170 [ 7237.478797][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7237.478797][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7237.478797][ T253] netlink_rcv_skb+0x130/0x360 [ 7237.478797][ T253] netlink_unicast+0x449/0x710 [ 7237.478797][ T253] netlink_sendmsg+0x723/0xbe0 [ 7237.478797][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7237.478797][ T253] ___sys_sendmsg+0xee/0x170 [ 7237.478797][ T253] __sys_sendmsg+0xcd/0x170 [ 7237.478797][ T253] do_syscall_64+0xc6/0x1e0 [ 7237.478797][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7237.478797][ T253] [ 7237.480694][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7237.480694][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7237.480694][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7237.480694][ T253] ipv6_find_idev+0x102/0x170 [ 7237.480694][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7237.480694][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7237.480694][ T253] netlink_rcv_skb+0x130/0x360 [ 7237.480694][ T253] netlink_unicast+0x449/0x710 [ 7237.480694][ T253] netlink_sendmsg+0x723/0xbe0 [ 7237.480694][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7237.480694][ T253] ___sys_sendmsg+0xee/0x170 [ 7237.480694][ T253] __sys_sendmsg+0xcd/0x170 [ 7237.480694][ T253] do_syscall_64+0xc6/0x1e0 [ 7237.480694][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7237.480694][ T253] [ 7247.722265][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7247.722768][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7247.722768][ T253] dst_init+0x84/0x4a0 [ 7247.722768][ T253] dst_alloc+0x97/0x150 [ 7247.722768][ T253] ip6_dst_alloc+0x23/0x90 [ 7247.722768][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7247.722768][ T253] ip6_pol_route+0x56f/0x840 [ 7247.722768][ T253] fib6_rule_lookup+0x334/0x630 [ 7247.722768][ T253] ip6_route_output_flags+0x259/0x480 [ 7247.722768][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7247.722768][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7247.722768][ T253] netlink_rcv_skb+0x130/0x360 [ 7247.722768][ T253] netlink_unicast+0x449/0x710 [ 7247.722768][ T253] netlink_sendmsg+0x723/0xbe0 [ 7247.722768][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7247.722768][ T253] ___sys_sendmsg+0xee/0x170 [ 7247.722768][ T253] __sys_sendmsg+0xcd/0x170 [ 7247.722768][ T253] do_syscall_64+0xc6/0x1e0 [ 7247.722768][ T253] [ 7247.725047][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7247.725047][ T253] netdev_get_by_index+0x5e/0x80 [ 7247.725047][ T253] fib6_nh_init+0x3d8/0x1580 [ 7247.725047][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7247.725047][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7247.725047][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7247.725047][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7247.725047][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7247.725047][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7247.725047][ T253] addrconf_dad_begin+0x310/0x670 [ 7247.725047][ T253] addrconf_dad_work+0x10b/0xab0 [ 7247.725047][ T253] process_one_work+0x84d/0x18a0 [ 7247.725047][ T253] worker_thread+0x587/0xd30 [ 7247.725047][ T253] kthread+0x28a/0x350 [ 7247.725047][ T253] ret_from_fork+0x31/0x70 [ 7247.725047][ T253] ret_from_fork_asm+0x1a/0x30 [ 7247.725047][ T253] [ 7247.727388][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7247.727388][ T253] netdev_get_by_index+0x5e/0x80 [ 7247.727388][ T253] fib6_nh_init+0x3d8/0x1580 [ 7247.727388][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7247.727388][ T253] ip6_route_add+0x1c/0x140 [ 7247.727388][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7247.727388][ T253] inet6_addr_add+0x4f8/0xa40 [ 7247.727388][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7247.727388][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7247.727388][ T253] netlink_rcv_skb+0x130/0x360 [ 7247.727388][ T253] netlink_unicast+0x449/0x710 [ 7247.727388][ T253] netlink_sendmsg+0x723/0xbe0 [ 7247.727388][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7247.727388][ T253] ___sys_sendmsg+0xee/0x170 [ 7247.727388][ T253] __sys_sendmsg+0xcd/0x170 [ 7247.727388][ T253] do_syscall_64+0xc6/0x1e0 [ 7247.727388][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7247.727388][ T253] [ 7247.729660][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7247.729660][ T253] netdev_get_by_index+0x5e/0x80 [ 7247.729660][ T253] fib6_nh_init+0x3d8/0x1580 [ 7247.729660][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7247.729660][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7247.729660][ T253] ipv6_add_addr+0x411/0x2000 [ 7247.729660][ T253] inet6_addr_add+0x30e/0xa40 [ 7247.729660][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7247.729660][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7247.729660][ T253] netlink_rcv_skb+0x130/0x360 [ 7247.729660][ T253] netlink_unicast+0x449/0x710 [ 7247.729660][ T253] netlink_sendmsg+0x723/0xbe0 [ 7247.729660][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7247.729660][ T253] ___sys_sendmsg+0xee/0x170 [ 7247.729660][ T253] __sys_sendmsg+0xcd/0x170 [ 7247.729660][ T253] do_syscall_64+0xc6/0x1e0 [ 7247.729660][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7247.729660][ T253] [ 7247.731962][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7247.731962][ T253] netdev_get_by_index+0x5e/0x80 [ 7247.731962][ T253] fib6_nh_init+0x3d8/0x1580 [ 7247.731962][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7247.731962][ T253] ip6_route_add+0x1c/0x140 [ 7247.731962][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7247.731962][ T253] addrconf_add_dev+0xe2/0x170 [ 7247.731962][ T253] inet6_addr_add+0x12f/0xa40 [ 7247.731962][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7247.731962][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7247.731962][ T253] netlink_rcv_skb+0x130/0x360 [ 7247.731962][ T253] netlink_unicast+0x449/0x710 [ 7247.731962][ T253] netlink_sendmsg+0x723/0xbe0 [ 7247.731962][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7247.731962][ T253] ___sys_sendmsg+0xee/0x170 [ 7247.731962][ T253] __sys_sendmsg+0xcd/0x170 [ 7247.731962][ T253] do_syscall_64+0xc6/0x1e0 [ 7247.731962][ T253] [ 7247.734222][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7247.734222][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7247.734222][ T253] ipv6_find_idev+0x102/0x170 [ 7247.734222][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7247.734222][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7247.734222][ T253] netlink_rcv_skb+0x130/0x360 [ 7247.734222][ T253] netlink_unicast+0x449/0x710 [ 7247.734222][ T253] netlink_sendmsg+0x723/0xbe0 [ 7247.734222][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7247.734222][ T253] ___sys_sendmsg+0xee/0x170 [ 7247.734222][ T253] __sys_sendmsg+0xcd/0x170 [ 7247.734222][ T253] do_syscall_64+0xc6/0x1e0 [ 7247.734222][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7247.734222][ T253] [ 7247.736020][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7247.736020][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7247.736020][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7247.736020][ T253] ipv6_find_idev+0x102/0x170 [ 7247.736020][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7247.736020][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7247.736020][ T253] netlink_rcv_skb+0x130/0x360 [ 7247.736020][ T253] netlink_unicast+0x449/0x710 [ 7247.736020][ T253] netlink_sendmsg+0x723/0xbe0 [ 7247.736020][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7247.736020][ T253] ___sys_sendmsg+0xee/0x170 [ 7247.736020][ T253] __sys_sendmsg+0xcd/0x170 [ 7247.736020][ T253] do_syscall_64+0xc6/0x1e0 [ 7247.736020][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7247.736020][ T253] [ 7257.874254][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7257.874769][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7257.874769][ T253] dst_init+0x84/0x4a0 [ 7257.874769][ T253] dst_alloc+0x97/0x150 [ 7257.874769][ T253] ip6_dst_alloc+0x23/0x90 [ 7257.874769][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7257.874769][ T253] ip6_pol_route+0x56f/0x840 [ 7257.874769][ T253] fib6_rule_lookup+0x334/0x630 [ 7257.874769][ T253] ip6_route_output_flags+0x259/0x480 [ 7257.874769][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7257.874769][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7257.874769][ T253] netlink_rcv_skb+0x130/0x360 [ 7257.874769][ T253] netlink_unicast+0x449/0x710 [ 7257.874769][ T253] netlink_sendmsg+0x723/0xbe0 [ 7257.874769][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7257.874769][ T253] ___sys_sendmsg+0xee/0x170 [ 7257.874769][ T253] __sys_sendmsg+0xcd/0x170 [ 7257.874769][ T253] do_syscall_64+0xc6/0x1e0 [ 7257.874769][ T253] [ 7257.877020][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7257.877020][ T253] netdev_get_by_index+0x5e/0x80 [ 7257.877020][ T253] fib6_nh_init+0x3d8/0x1580 [ 7257.877020][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7257.877020][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7257.877020][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7257.877020][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7257.877020][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7257.877020][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7257.877020][ T253] addrconf_dad_begin+0x310/0x670 [ 7257.877020][ T253] addrconf_dad_work+0x10b/0xab0 [ 7257.877020][ T253] process_one_work+0x84d/0x18a0 [ 7257.877020][ T253] worker_thread+0x587/0xd30 [ 7257.877020][ T253] kthread+0x28a/0x350 [ 7257.877020][ T253] ret_from_fork+0x31/0x70 [ 7257.877020][ T253] ret_from_fork_asm+0x1a/0x30 [ 7257.877020][ T253] [ 7257.879193][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7257.879193][ T253] netdev_get_by_index+0x5e/0x80 [ 7257.879193][ T253] fib6_nh_init+0x3d8/0x1580 [ 7257.879193][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7257.879193][ T253] ip6_route_add+0x1c/0x140 [ 7257.879193][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7257.879193][ T253] inet6_addr_add+0x4f8/0xa40 [ 7257.879193][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7257.879193][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7257.879193][ T253] netlink_rcv_skb+0x130/0x360 [ 7257.879193][ T253] netlink_unicast+0x449/0x710 [ 7257.879193][ T253] netlink_sendmsg+0x723/0xbe0 [ 7257.879193][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7257.879193][ T253] ___sys_sendmsg+0xee/0x170 [ 7257.879193][ T253] __sys_sendmsg+0xcd/0x170 [ 7257.879193][ T253] do_syscall_64+0xc6/0x1e0 [ 7257.879193][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7257.879193][ T253] [ 7257.881449][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7257.881449][ T253] netdev_get_by_index+0x5e/0x80 [ 7257.881449][ T253] fib6_nh_init+0x3d8/0x1580 [ 7257.881449][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7257.881449][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7257.881449][ T253] ipv6_add_addr+0x411/0x2000 [ 7257.881449][ T253] inet6_addr_add+0x30e/0xa40 [ 7257.881449][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7257.881449][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7257.881449][ T253] netlink_rcv_skb+0x130/0x360 [ 7257.881449][ T253] netlink_unicast+0x449/0x710 [ 7257.881449][ T253] netlink_sendmsg+0x723/0xbe0 [ 7257.881449][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7257.881449][ T253] ___sys_sendmsg+0xee/0x170 [ 7257.881449][ T253] __sys_sendmsg+0xcd/0x170 [ 7257.881449][ T253] do_syscall_64+0xc6/0x1e0 [ 7257.881449][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7257.881449][ T253] [ 7257.883696][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7257.883696][ T253] netdev_get_by_index+0x5e/0x80 [ 7257.883696][ T253] fib6_nh_init+0x3d8/0x1580 [ 7257.883696][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7257.883696][ T253] ip6_route_add+0x1c/0x140 [ 7257.883696][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7257.883696][ T253] addrconf_add_dev+0xe2/0x170 [ 7257.883696][ T253] inet6_addr_add+0x12f/0xa40 [ 7257.883696][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7257.883696][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7257.883696][ T253] netlink_rcv_skb+0x130/0x360 [ 7257.883696][ T253] netlink_unicast+0x449/0x710 [ 7257.883696][ T253] netlink_sendmsg+0x723/0xbe0 [ 7257.883696][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7257.883696][ T253] ___sys_sendmsg+0xee/0x170 [ 7257.883696][ T253] __sys_sendmsg+0xcd/0x170 [ 7257.883696][ T253] do_syscall_64+0xc6/0x1e0 [ 7257.883696][ T253] [ 7257.885902][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7257.885902][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7257.885902][ T253] ipv6_find_idev+0x102/0x170 [ 7257.885902][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7257.885902][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7257.885902][ T253] netlink_rcv_skb+0x130/0x360 [ 7257.885902][ T253] netlink_unicast+0x449/0x710 [ 7257.885902][ T253] netlink_sendmsg+0x723/0xbe0 [ 7257.885902][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7257.885902][ T253] ___sys_sendmsg+0xee/0x170 [ 7257.885902][ T253] __sys_sendmsg+0xcd/0x170 [ 7257.885902][ T253] do_syscall_64+0xc6/0x1e0 [ 7257.885902][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7257.885902][ T253] [ 7257.887649][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7257.887649][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7257.887649][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7257.887649][ T253] ipv6_find_idev+0x102/0x170 [ 7257.887649][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7257.887649][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7257.887649][ T253] netlink_rcv_skb+0x130/0x360 [ 7257.887649][ T253] netlink_unicast+0x449/0x710 [ 7257.887649][ T253] netlink_sendmsg+0x723/0xbe0 [ 7257.887649][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7257.887649][ T253] ___sys_sendmsg+0xee/0x170 [ 7257.887649][ T253] __sys_sendmsg+0xcd/0x170 [ 7257.887649][ T253] do_syscall_64+0xc6/0x1e0 [ 7257.887649][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7257.887649][ T253] [ 7268.138334][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7268.138770][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7268.138770][ T253] dst_init+0x84/0x4a0 [ 7268.138770][ T253] dst_alloc+0x97/0x150 [ 7268.138770][ T253] ip6_dst_alloc+0x23/0x90 [ 7268.138770][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7268.138770][ T253] ip6_pol_route+0x56f/0x840 [ 7268.138770][ T253] fib6_rule_lookup+0x334/0x630 [ 7268.138770][ T253] ip6_route_output_flags+0x259/0x480 [ 7268.138770][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7268.138770][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7268.138770][ T253] netlink_rcv_skb+0x130/0x360 [ 7268.138770][ T253] netlink_unicast+0x449/0x710 [ 7268.138770][ T253] netlink_sendmsg+0x723/0xbe0 [ 7268.138770][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7268.138770][ T253] ___sys_sendmsg+0xee/0x170 [ 7268.138770][ T253] __sys_sendmsg+0xcd/0x170 [ 7268.138770][ T253] do_syscall_64+0xc6/0x1e0 [ 7268.138770][ T253] [ 7268.141014][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7268.141014][ T253] netdev_get_by_index+0x5e/0x80 [ 7268.141014][ T253] fib6_nh_init+0x3d8/0x1580 [ 7268.141014][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7268.141014][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7268.141014][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7268.141014][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7268.141014][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7268.141014][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7268.141014][ T253] addrconf_dad_begin+0x310/0x670 [ 7268.141014][ T253] addrconf_dad_work+0x10b/0xab0 [ 7268.141014][ T253] process_one_work+0x84d/0x18a0 [ 7268.141014][ T253] worker_thread+0x587/0xd30 [ 7268.141014][ T253] kthread+0x28a/0x350 [ 7268.141014][ T253] ret_from_fork+0x31/0x70 [ 7268.141014][ T253] ret_from_fork_asm+0x1a/0x30 [ 7268.141014][ T253] [ 7268.143190][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7268.143190][ T253] netdev_get_by_index+0x5e/0x80 [ 7268.143190][ T253] fib6_nh_init+0x3d8/0x1580 [ 7268.143190][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7268.143190][ T253] ip6_route_add+0x1c/0x140 [ 7268.143190][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7268.143190][ T253] inet6_addr_add+0x4f8/0xa40 [ 7268.143190][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7268.143190][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7268.143190][ T253] netlink_rcv_skb+0x130/0x360 [ 7268.143190][ T253] netlink_unicast+0x449/0x710 [ 7268.143190][ T253] netlink_sendmsg+0x723/0xbe0 [ 7268.143190][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7268.143190][ T253] ___sys_sendmsg+0xee/0x170 [ 7268.143190][ T253] __sys_sendmsg+0xcd/0x170 [ 7268.143190][ T253] do_syscall_64+0xc6/0x1e0 [ 7268.143190][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7268.143190][ T253] [ 7268.145454][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7268.145454][ T253] netdev_get_by_index+0x5e/0x80 [ 7268.145454][ T253] fib6_nh_init+0x3d8/0x1580 [ 7268.145454][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7268.145454][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7268.145454][ T253] ipv6_add_addr+0x411/0x2000 [ 7268.145454][ T253] inet6_addr_add+0x30e/0xa40 [ 7268.145454][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7268.145454][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7268.145454][ T253] netlink_rcv_skb+0x130/0x360 [ 7268.145454][ T253] netlink_unicast+0x449/0x710 [ 7268.145454][ T253] netlink_sendmsg+0x723/0xbe0 [ 7268.145454][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7268.145454][ T253] ___sys_sendmsg+0xee/0x170 [ 7268.145454][ T253] __sys_sendmsg+0xcd/0x170 [ 7268.145454][ T253] do_syscall_64+0xc6/0x1e0 [ 7268.145454][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7268.145454][ T253] [ 7268.147732][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7268.147732][ T253] netdev_get_by_index+0x5e/0x80 [ 7268.147732][ T253] fib6_nh_init+0x3d8/0x1580 [ 7268.147732][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7268.147732][ T253] ip6_route_add+0x1c/0x140 [ 7268.147732][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7268.147732][ T253] addrconf_add_dev+0xe2/0x170 [ 7268.147732][ T253] inet6_addr_add+0x12f/0xa40 [ 7268.147732][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7268.147732][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7268.147732][ T253] netlink_rcv_skb+0x130/0x360 [ 7268.147732][ T253] netlink_unicast+0x449/0x710 [ 7268.147732][ T253] netlink_sendmsg+0x723/0xbe0 [ 7268.147732][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7268.147732][ T253] ___sys_sendmsg+0xee/0x170 [ 7268.147732][ T253] __sys_sendmsg+0xcd/0x170 [ 7268.147732][ T253] do_syscall_64+0xc6/0x1e0 [ 7268.147732][ T253] [ 7268.149972][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7268.149972][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7268.149972][ T253] ipv6_find_idev+0x102/0x170 [ 7268.149972][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7268.149972][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7268.149972][ T253] netlink_rcv_skb+0x130/0x360 [ 7268.149972][ T253] netlink_unicast+0x449/0x710 [ 7268.149972][ T253] netlink_sendmsg+0x723/0xbe0 [ 7268.149972][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7268.149972][ T253] ___sys_sendmsg+0xee/0x170 [ 7268.149972][ T253] __sys_sendmsg+0xcd/0x170 [ 7268.149972][ T253] do_syscall_64+0xc6/0x1e0 [ 7268.149972][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7268.149972][ T253] [ 7268.151722][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7268.151722][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7268.151722][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7268.151722][ T253] ipv6_find_idev+0x102/0x170 [ 7268.151722][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7268.151722][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7268.151722][ T253] netlink_rcv_skb+0x130/0x360 [ 7268.151722][ T253] netlink_unicast+0x449/0x710 [ 7268.151722][ T253] netlink_sendmsg+0x723/0xbe0 [ 7268.151722][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7268.151722][ T253] ___sys_sendmsg+0xee/0x170 [ 7268.151722][ T253] __sys_sendmsg+0xcd/0x170 [ 7268.151722][ T253] do_syscall_64+0xc6/0x1e0 [ 7268.151722][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7268.151722][ T253] [ 7278.394331][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7278.394844][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7278.394844][ T253] dst_init+0x84/0x4a0 [ 7278.394844][ T253] dst_alloc+0x97/0x150 [ 7278.394844][ T253] ip6_dst_alloc+0x23/0x90 [ 7278.394844][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7278.394844][ T253] ip6_pol_route+0x56f/0x840 [ 7278.394844][ T253] fib6_rule_lookup+0x334/0x630 [ 7278.394844][ T253] ip6_route_output_flags+0x259/0x480 [ 7278.394844][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7278.394844][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7278.394844][ T253] netlink_rcv_skb+0x130/0x360 [ 7278.394844][ T253] netlink_unicast+0x449/0x710 [ 7278.394844][ T253] netlink_sendmsg+0x723/0xbe0 [ 7278.394844][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7278.394844][ T253] ___sys_sendmsg+0xee/0x170 [ 7278.394844][ T253] __sys_sendmsg+0xcd/0x170 [ 7278.394844][ T253] do_syscall_64+0xc6/0x1e0 [ 7278.394844][ T253] [ 7278.397090][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7278.397090][ T253] netdev_get_by_index+0x5e/0x80 [ 7278.397090][ T253] fib6_nh_init+0x3d8/0x1580 [ 7278.397090][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7278.397090][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7278.397090][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7278.397090][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7278.397090][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7278.397090][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7278.397090][ T253] addrconf_dad_begin+0x310/0x670 [ 7278.397090][ T253] addrconf_dad_work+0x10b/0xab0 [ 7278.397090][ T253] process_one_work+0x84d/0x18a0 [ 7278.397090][ T253] worker_thread+0x587/0xd30 [ 7278.397090][ T253] kthread+0x28a/0x350 [ 7278.397090][ T253] ret_from_fork+0x31/0x70 [ 7278.397090][ T253] ret_from_fork_asm+0x1a/0x30 [ 7278.397090][ T253] [ 7278.399276][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7278.399276][ T253] netdev_get_by_index+0x5e/0x80 [ 7278.399276][ T253] fib6_nh_init+0x3d8/0x1580 [ 7278.399276][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7278.399276][ T253] ip6_route_add+0x1c/0x140 [ 7278.399276][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7278.399276][ T253] inet6_addr_add+0x4f8/0xa40 [ 7278.399276][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7278.399276][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7278.399276][ T253] netlink_rcv_skb+0x130/0x360 [ 7278.399276][ T253] netlink_unicast+0x449/0x710 [ 7278.399276][ T253] netlink_sendmsg+0x723/0xbe0 [ 7278.399276][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7278.399276][ T253] ___sys_sendmsg+0xee/0x170 [ 7278.399276][ T253] __sys_sendmsg+0xcd/0x170 [ 7278.399276][ T253] do_syscall_64+0xc6/0x1e0 [ 7278.399276][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7278.399276][ T253] [ 7278.401596][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7278.401596][ T253] netdev_get_by_index+0x5e/0x80 [ 7278.401596][ T253] fib6_nh_init+0x3d8/0x1580 [ 7278.401596][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7278.401596][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7278.401596][ T253] ipv6_add_addr+0x411/0x2000 [ 7278.401596][ T253] inet6_addr_add+0x30e/0xa40 [ 7278.401596][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7278.401596][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7278.401596][ T253] netlink_rcv_skb+0x130/0x360 [ 7278.401596][ T253] netlink_unicast+0x449/0x710 [ 7278.401596][ T253] netlink_sendmsg+0x723/0xbe0 [ 7278.401596][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7278.401596][ T253] ___sys_sendmsg+0xee/0x170 [ 7278.401596][ T253] __sys_sendmsg+0xcd/0x170 [ 7278.401596][ T253] do_syscall_64+0xc6/0x1e0 [ 7278.401596][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7278.401596][ T253] [ 7278.403958][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7278.403958][ T253] netdev_get_by_index+0x5e/0x80 [ 7278.403958][ T253] fib6_nh_init+0x3d8/0x1580 [ 7278.403958][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7278.403958][ T253] ip6_route_add+0x1c/0x140 [ 7278.403958][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7278.403958][ T253] addrconf_add_dev+0xe2/0x170 [ 7278.403958][ T253] inet6_addr_add+0x12f/0xa40 [ 7278.403958][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7278.403958][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7278.403958][ T253] netlink_rcv_skb+0x130/0x360 [ 7278.403958][ T253] netlink_unicast+0x449/0x710 [ 7278.403958][ T253] netlink_sendmsg+0x723/0xbe0 [ 7278.403958][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7278.403958][ T253] ___sys_sendmsg+0xee/0x170 [ 7278.403958][ T253] __sys_sendmsg+0xcd/0x170 [ 7278.403958][ T253] do_syscall_64+0xc6/0x1e0 [ 7278.403958][ T253] [ 7278.406229][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7278.406229][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7278.406229][ T253] ipv6_find_idev+0x102/0x170 [ 7278.406229][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7278.406229][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7278.406229][ T253] netlink_rcv_skb+0x130/0x360 [ 7278.406229][ T253] netlink_unicast+0x449/0x710 [ 7278.406229][ T253] netlink_sendmsg+0x723/0xbe0 [ 7278.406229][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7278.406229][ T253] ___sys_sendmsg+0xee/0x170 [ 7278.406229][ T253] __sys_sendmsg+0xcd/0x170 [ 7278.406229][ T253] do_syscall_64+0xc6/0x1e0 [ 7278.406229][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7278.406229][ T253] [ 7278.408068][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7278.408068][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7278.408068][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7278.408068][ T253] ipv6_find_idev+0x102/0x170 [ 7278.408068][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7278.408068][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7278.408068][ T253] netlink_rcv_skb+0x130/0x360 [ 7278.408068][ T253] netlink_unicast+0x449/0x710 [ 7278.408068][ T253] netlink_sendmsg+0x723/0xbe0 [ 7278.408068][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7278.408068][ T253] ___sys_sendmsg+0xee/0x170 [ 7278.408068][ T253] __sys_sendmsg+0xcd/0x170 [ 7278.408068][ T253] do_syscall_64+0xc6/0x1e0 [ 7278.408068][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7278.408068][ T253] [ 7288.650291][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7288.650795][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7288.650795][ T253] dst_init+0x84/0x4a0 [ 7288.650795][ T253] dst_alloc+0x97/0x150 [ 7288.650795][ T253] ip6_dst_alloc+0x23/0x90 [ 7288.650795][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7288.650795][ T253] ip6_pol_route+0x56f/0x840 [ 7288.650795][ T253] fib6_rule_lookup+0x334/0x630 [ 7288.650795][ T253] ip6_route_output_flags+0x259/0x480 [ 7288.650795][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7288.650795][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7288.650795][ T253] netlink_rcv_skb+0x130/0x360 [ 7288.650795][ T253] netlink_unicast+0x449/0x710 [ 7288.650795][ T253] netlink_sendmsg+0x723/0xbe0 [ 7288.650795][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7288.650795][ T253] ___sys_sendmsg+0xee/0x170 [ 7288.650795][ T253] __sys_sendmsg+0xcd/0x170 [ 7288.650795][ T253] do_syscall_64+0xc6/0x1e0 [ 7288.650795][ T253] [ 7288.653037][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7288.653037][ T253] netdev_get_by_index+0x5e/0x80 [ 7288.653037][ T253] fib6_nh_init+0x3d8/0x1580 [ 7288.653037][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7288.653037][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7288.653037][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7288.653037][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7288.653037][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7288.653037][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7288.653037][ T253] addrconf_dad_begin+0x310/0x670 [ 7288.653037][ T253] addrconf_dad_work+0x10b/0xab0 [ 7288.653037][ T253] process_one_work+0x84d/0x18a0 [ 7288.653037][ T253] worker_thread+0x587/0xd30 [ 7288.653037][ T253] kthread+0x28a/0x350 [ 7288.653037][ T253] ret_from_fork+0x31/0x70 [ 7288.653037][ T253] ret_from_fork_asm+0x1a/0x30 [ 7288.653037][ T253] [ 7288.655221][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7288.655221][ T253] netdev_get_by_index+0x5e/0x80 [ 7288.655221][ T253] fib6_nh_init+0x3d8/0x1580 [ 7288.655221][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7288.655221][ T253] ip6_route_add+0x1c/0x140 [ 7288.655221][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7288.655221][ T253] inet6_addr_add+0x4f8/0xa40 [ 7288.655221][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7288.655221][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7288.655221][ T253] netlink_rcv_skb+0x130/0x360 [ 7288.655221][ T253] netlink_unicast+0x449/0x710 [ 7288.655221][ T253] netlink_sendmsg+0x723/0xbe0 [ 7288.655221][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7288.655221][ T253] ___sys_sendmsg+0xee/0x170 [ 7288.655221][ T253] __sys_sendmsg+0xcd/0x170 [ 7288.655221][ T253] do_syscall_64+0xc6/0x1e0 [ 7288.655221][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7288.655221][ T253] [ 7288.657532][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7288.657532][ T253] netdev_get_by_index+0x5e/0x80 [ 7288.657532][ T253] fib6_nh_init+0x3d8/0x1580 [ 7288.657532][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7288.657532][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7288.657532][ T253] ipv6_add_addr+0x411/0x2000 [ 7288.657532][ T253] inet6_addr_add+0x30e/0xa40 [ 7288.657532][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7288.657532][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7288.657532][ T253] netlink_rcv_skb+0x130/0x360 [ 7288.657532][ T253] netlink_unicast+0x449/0x710 [ 7288.657532][ T253] netlink_sendmsg+0x723/0xbe0 [ 7288.657532][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7288.657532][ T253] ___sys_sendmsg+0xee/0x170 [ 7288.657532][ T253] __sys_sendmsg+0xcd/0x170 [ 7288.657532][ T253] do_syscall_64+0xc6/0x1e0 [ 7288.657532][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7288.657532][ T253] [ 7288.659814][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7288.659814][ T253] netdev_get_by_index+0x5e/0x80 [ 7288.659814][ T253] fib6_nh_init+0x3d8/0x1580 [ 7288.659814][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7288.659814][ T253] ip6_route_add+0x1c/0x140 [ 7288.659814][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7288.659814][ T253] addrconf_add_dev+0xe2/0x170 [ 7288.659814][ T253] inet6_addr_add+0x12f/0xa40 [ 7288.659814][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7288.659814][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7288.659814][ T253] netlink_rcv_skb+0x130/0x360 [ 7288.659814][ T253] netlink_unicast+0x449/0x710 [ 7288.659814][ T253] netlink_sendmsg+0x723/0xbe0 [ 7288.659814][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7288.659814][ T253] ___sys_sendmsg+0xee/0x170 [ 7288.659814][ T253] __sys_sendmsg+0xcd/0x170 [ 7288.659814][ T253] do_syscall_64+0xc6/0x1e0 [ 7288.659814][ T253] [ 7288.662054][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7288.662054][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7288.662054][ T253] ipv6_find_idev+0x102/0x170 [ 7288.662054][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7288.662054][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7288.662054][ T253] netlink_rcv_skb+0x130/0x360 [ 7288.662054][ T253] netlink_unicast+0x449/0x710 [ 7288.662054][ T253] netlink_sendmsg+0x723/0xbe0 [ 7288.662054][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7288.662054][ T253] ___sys_sendmsg+0xee/0x170 [ 7288.662054][ T253] __sys_sendmsg+0xcd/0x170 [ 7288.662054][ T253] do_syscall_64+0xc6/0x1e0 [ 7288.662054][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7288.662054][ T253] [ 7288.663808][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7288.663808][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7288.663808][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7288.663808][ T253] ipv6_find_idev+0x102/0x170 [ 7288.663808][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7288.663808][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7288.663808][ T253] netlink_rcv_skb+0x130/0x360 [ 7288.663808][ T253] netlink_unicast+0x449/0x710 [ 7288.663808][ T253] netlink_sendmsg+0x723/0xbe0 [ 7288.663808][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7288.663808][ T253] ___sys_sendmsg+0xee/0x170 [ 7288.663808][ T253] __sys_sendmsg+0xcd/0x170 [ 7288.663808][ T253] do_syscall_64+0xc6/0x1e0 [ 7288.663808][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7288.663808][ T253] [ 7298.914310][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7298.914760][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7298.914760][ T253] dst_init+0x84/0x4a0 [ 7298.914760][ T253] dst_alloc+0x97/0x150 [ 7298.914760][ T253] ip6_dst_alloc+0x23/0x90 [ 7298.914760][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7298.914760][ T253] ip6_pol_route+0x56f/0x840 [ 7298.914760][ T253] fib6_rule_lookup+0x334/0x630 [ 7298.914760][ T253] ip6_route_output_flags+0x259/0x480 [ 7298.914760][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7298.914760][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7298.914760][ T253] netlink_rcv_skb+0x130/0x360 [ 7298.914760][ T253] netlink_unicast+0x449/0x710 [ 7298.914760][ T253] netlink_sendmsg+0x723/0xbe0 [ 7298.914760][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7298.914760][ T253] ___sys_sendmsg+0xee/0x170 [ 7298.914760][ T253] __sys_sendmsg+0xcd/0x170 [ 7298.914760][ T253] do_syscall_64+0xc6/0x1e0 [ 7298.914760][ T253] [ 7298.917173][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7298.917173][ T253] netdev_get_by_index+0x5e/0x80 [ 7298.917173][ T253] fib6_nh_init+0x3d8/0x1580 [ 7298.917173][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7298.917173][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7298.917173][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7298.917173][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7298.917173][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7298.917173][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7298.917173][ T253] addrconf_dad_begin+0x310/0x670 [ 7298.917173][ T253] addrconf_dad_work+0x10b/0xab0 [ 7298.917173][ T253] process_one_work+0x84d/0x18a0 [ 7298.917173][ T253] worker_thread+0x587/0xd30 [ 7298.917173][ T253] kthread+0x28a/0x350 [ 7298.917173][ T253] ret_from_fork+0x31/0x70 [ 7298.917173][ T253] ret_from_fork_asm+0x1a/0x30 [ 7298.917173][ T253] [ 7298.919470][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7298.919470][ T253] netdev_get_by_index+0x5e/0x80 [ 7298.919470][ T253] fib6_nh_init+0x3d8/0x1580 [ 7298.919470][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7298.919470][ T253] ip6_route_add+0x1c/0x140 [ 7298.919470][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7298.919470][ T253] inet6_addr_add+0x4f8/0xa40 [ 7298.919470][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7298.919470][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7298.919470][ T253] netlink_rcv_skb+0x130/0x360 [ 7298.919470][ T253] netlink_unicast+0x449/0x710 [ 7298.919470][ T253] netlink_sendmsg+0x723/0xbe0 [ 7298.919470][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7298.919470][ T253] ___sys_sendmsg+0xee/0x170 [ 7298.919470][ T253] __sys_sendmsg+0xcd/0x170 [ 7298.919470][ T253] do_syscall_64+0xc6/0x1e0 [ 7298.919470][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7298.919470][ T253] [ 7298.921892][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7298.921892][ T253] netdev_get_by_index+0x5e/0x80 [ 7298.921892][ T253] fib6_nh_init+0x3d8/0x1580 [ 7298.921892][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7298.921892][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7298.921892][ T253] ipv6_add_addr+0x411/0x2000 [ 7298.921892][ T253] inet6_addr_add+0x30e/0xa40 [ 7298.921892][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7298.921892][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7298.921892][ T253] netlink_rcv_skb+0x130/0x360 [ 7298.921892][ T253] netlink_unicast+0x449/0x710 [ 7298.921892][ T253] netlink_sendmsg+0x723/0xbe0 [ 7298.921892][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7298.921892][ T253] ___sys_sendmsg+0xee/0x170 [ 7298.921892][ T253] __sys_sendmsg+0xcd/0x170 [ 7298.921892][ T253] do_syscall_64+0xc6/0x1e0 [ 7298.921892][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7298.921892][ T253] [ 7298.924351][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7298.924351][ T253] netdev_get_by_index+0x5e/0x80 [ 7298.924351][ T253] fib6_nh_init+0x3d8/0x1580 [ 7298.924351][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7298.924351][ T253] ip6_route_add+0x1c/0x140 [ 7298.924351][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7298.924351][ T253] addrconf_add_dev+0xe2/0x170 [ 7298.924351][ T253] inet6_addr_add+0x12f/0xa40 [ 7298.924351][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7298.924351][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7298.924351][ T253] netlink_rcv_skb+0x130/0x360 [ 7298.924351][ T253] netlink_unicast+0x449/0x710 [ 7298.924351][ T253] netlink_sendmsg+0x723/0xbe0 [ 7298.924351][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7298.924351][ T253] ___sys_sendmsg+0xee/0x170 [ 7298.924351][ T253] __sys_sendmsg+0xcd/0x170 [ 7298.924351][ T253] do_syscall_64+0xc6/0x1e0 [ 7298.924351][ T253] [ 7298.926568][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7298.926568][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7298.926568][ T253] ipv6_find_idev+0x102/0x170 [ 7298.926568][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7298.926568][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7298.926568][ T253] netlink_rcv_skb+0x130/0x360 [ 7298.926568][ T253] netlink_unicast+0x449/0x710 [ 7298.926568][ T253] netlink_sendmsg+0x723/0xbe0 [ 7298.926568][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7298.926568][ T253] ___sys_sendmsg+0xee/0x170 [ 7298.926568][ T253] __sys_sendmsg+0xcd/0x170 [ 7298.926568][ T253] do_syscall_64+0xc6/0x1e0 [ 7298.926568][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7298.926568][ T253] [ 7298.928300][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7298.928300][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7298.928300][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7298.928300][ T253] ipv6_find_idev+0x102/0x170 [ 7298.928300][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7298.928300][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7298.928300][ T253] netlink_rcv_skb+0x130/0x360 [ 7298.928300][ T253] netlink_unicast+0x449/0x710 [ 7298.928300][ T253] netlink_sendmsg+0x723/0xbe0 [ 7298.928300][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7298.928300][ T253] ___sys_sendmsg+0xee/0x170 [ 7298.928300][ T253] __sys_sendmsg+0xcd/0x170 [ 7298.928300][ T253] do_syscall_64+0xc6/0x1e0 [ 7298.928300][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7298.928300][ T253] [ 7309.146307][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7309.146752][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7309.146752][ T253] dst_init+0x84/0x4a0 [ 7309.146752][ T253] dst_alloc+0x97/0x150 [ 7309.146752][ T253] ip6_dst_alloc+0x23/0x90 [ 7309.146752][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7309.146752][ T253] ip6_pol_route+0x56f/0x840 [ 7309.146752][ T253] fib6_rule_lookup+0x334/0x630 [ 7309.146752][ T253] ip6_route_output_flags+0x259/0x480 [ 7309.146752][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7309.146752][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7309.146752][ T253] netlink_rcv_skb+0x130/0x360 [ 7309.146752][ T253] netlink_unicast+0x449/0x710 [ 7309.146752][ T253] netlink_sendmsg+0x723/0xbe0 [ 7309.146752][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7309.146752][ T253] ___sys_sendmsg+0xee/0x170 [ 7309.146752][ T253] __sys_sendmsg+0xcd/0x170 [ 7309.146752][ T253] do_syscall_64+0xc6/0x1e0 [ 7309.146752][ T253] [ 7309.149128][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7309.149128][ T253] netdev_get_by_index+0x5e/0x80 [ 7309.149128][ T253] fib6_nh_init+0x3d8/0x1580 [ 7309.149128][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7309.149128][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7309.149128][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7309.149128][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7309.149128][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7309.149128][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7309.149128][ T253] addrconf_dad_begin+0x310/0x670 [ 7309.149128][ T253] addrconf_dad_work+0x10b/0xab0 [ 7309.149128][ T253] process_one_work+0x84d/0x18a0 [ 7309.149128][ T253] worker_thread+0x587/0xd30 [ 7309.149128][ T253] kthread+0x28a/0x350 [ 7309.149128][ T253] ret_from_fork+0x31/0x70 [ 7309.149128][ T253] ret_from_fork_asm+0x1a/0x30 [ 7309.149128][ T253] [ 7309.151435][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7309.151435][ T253] netdev_get_by_index+0x5e/0x80 [ 7309.151435][ T253] fib6_nh_init+0x3d8/0x1580 [ 7309.151435][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7309.151435][ T253] ip6_route_add+0x1c/0x140 [ 7309.151435][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7309.151435][ T253] inet6_addr_add+0x4f8/0xa40 [ 7309.151435][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7309.151435][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7309.151435][ T253] netlink_rcv_skb+0x130/0x360 [ 7309.151435][ T253] netlink_unicast+0x449/0x710 [ 7309.151435][ T253] netlink_sendmsg+0x723/0xbe0 [ 7309.151435][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7309.151435][ T253] ___sys_sendmsg+0xee/0x170 [ 7309.151435][ T253] __sys_sendmsg+0xcd/0x170 [ 7309.151435][ T253] do_syscall_64+0xc6/0x1e0 [ 7309.151435][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7309.151435][ T253] [ 7309.153875][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7309.153875][ T253] netdev_get_by_index+0x5e/0x80 [ 7309.153875][ T253] fib6_nh_init+0x3d8/0x1580 [ 7309.153875][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7309.153875][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7309.153875][ T253] ipv6_add_addr+0x411/0x2000 [ 7309.153875][ T253] inet6_addr_add+0x30e/0xa40 [ 7309.153875][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7309.153875][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7309.153875][ T253] netlink_rcv_skb+0x130/0x360 [ 7309.153875][ T253] netlink_unicast+0x449/0x710 [ 7309.153875][ T253] netlink_sendmsg+0x723/0xbe0 [ 7309.153875][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7309.153875][ T253] ___sys_sendmsg+0xee/0x170 [ 7309.153875][ T253] __sys_sendmsg+0xcd/0x170 [ 7309.153875][ T253] do_syscall_64+0xc6/0x1e0 [ 7309.153875][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7309.153875][ T253] [ 7309.156293][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7309.156293][ T253] netdev_get_by_index+0x5e/0x80 [ 7309.156293][ T253] fib6_nh_init+0x3d8/0x1580 [ 7309.156293][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7309.156293][ T253] ip6_route_add+0x1c/0x140 [ 7309.156293][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7309.156293][ T253] addrconf_add_dev+0xe2/0x170 [ 7309.156293][ T253] inet6_addr_add+0x12f/0xa40 [ 7309.156293][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7309.156293][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7309.156293][ T253] netlink_rcv_skb+0x130/0x360 [ 7309.156293][ T253] netlink_unicast+0x449/0x710 [ 7309.156293][ T253] netlink_sendmsg+0x723/0xbe0 [ 7309.156293][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7309.156293][ T253] ___sys_sendmsg+0xee/0x170 [ 7309.156293][ T253] __sys_sendmsg+0xcd/0x170 [ 7309.156293][ T253] do_syscall_64+0xc6/0x1e0 [ 7309.156293][ T253] [ 7309.158670][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7309.158670][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7309.158670][ T253] ipv6_find_idev+0x102/0x170 [ 7309.158670][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7309.158670][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7309.158670][ T253] netlink_rcv_skb+0x130/0x360 [ 7309.158670][ T253] netlink_unicast+0x449/0x710 [ 7309.158670][ T253] netlink_sendmsg+0x723/0xbe0 [ 7309.158670][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7309.158670][ T253] ___sys_sendmsg+0xee/0x170 [ 7309.158670][ T253] __sys_sendmsg+0xcd/0x170 [ 7309.158670][ T253] do_syscall_64+0xc6/0x1e0 [ 7309.158670][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7309.158670][ T253] [ 7309.160525][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7309.160525][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7309.160525][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7309.160525][ T253] ipv6_find_idev+0x102/0x170 [ 7309.160525][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7309.160525][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7309.160525][ T253] netlink_rcv_skb+0x130/0x360 [ 7309.160525][ T253] netlink_unicast+0x449/0x710 [ 7309.160525][ T253] netlink_sendmsg+0x723/0xbe0 [ 7309.160525][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7309.160525][ T253] ___sys_sendmsg+0xee/0x170 [ 7309.160525][ T253] __sys_sendmsg+0xcd/0x170 [ 7309.160525][ T253] do_syscall_64+0xc6/0x1e0 [ 7309.160525][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7309.160525][ T253] [ 7319.402237][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7319.402715][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7319.402715][ T253] dst_init+0x84/0x4a0 [ 7319.402715][ T253] dst_alloc+0x97/0x150 [ 7319.402715][ T253] ip6_dst_alloc+0x23/0x90 [ 7319.402715][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7319.402715][ T253] ip6_pol_route+0x56f/0x840 [ 7319.402715][ T253] fib6_rule_lookup+0x334/0x630 [ 7319.402715][ T253] ip6_route_output_flags+0x259/0x480 [ 7319.402715][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7319.402715][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7319.402715][ T253] netlink_rcv_skb+0x130/0x360 [ 7319.402715][ T253] netlink_unicast+0x449/0x710 [ 7319.402715][ T253] netlink_sendmsg+0x723/0xbe0 [ 7319.402715][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7319.402715][ T253] ___sys_sendmsg+0xee/0x170 [ 7319.402715][ T253] __sys_sendmsg+0xcd/0x170 [ 7319.402715][ T253] do_syscall_64+0xc6/0x1e0 [ 7319.402715][ T253] [ 7319.405193][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7319.405193][ T253] netdev_get_by_index+0x5e/0x80 [ 7319.405193][ T253] fib6_nh_init+0x3d8/0x1580 [ 7319.405193][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7319.405193][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7319.405193][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7319.405193][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7319.405193][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7319.405193][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7319.405193][ T253] addrconf_dad_begin+0x310/0x670 [ 7319.405193][ T253] addrconf_dad_work+0x10b/0xab0 [ 7319.405193][ T253] process_one_work+0x84d/0x18a0 [ 7319.405193][ T253] worker_thread+0x587/0xd30 [ 7319.405193][ T253] kthread+0x28a/0x350 [ 7319.405193][ T253] ret_from_fork+0x31/0x70 [ 7319.405193][ T253] ret_from_fork_asm+0x1a/0x30 [ 7319.405193][ T253] [ 7319.407612][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7319.407612][ T253] netdev_get_by_index+0x5e/0x80 [ 7319.407612][ T253] fib6_nh_init+0x3d8/0x1580 [ 7319.407612][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7319.407612][ T253] ip6_route_add+0x1c/0x140 [ 7319.407612][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7319.407612][ T253] inet6_addr_add+0x4f8/0xa40 [ 7319.407612][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7319.407612][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7319.407612][ T253] netlink_rcv_skb+0x130/0x360 [ 7319.407612][ T253] netlink_unicast+0x449/0x710 [ 7319.407612][ T253] netlink_sendmsg+0x723/0xbe0 [ 7319.407612][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7319.407612][ T253] ___sys_sendmsg+0xee/0x170 [ 7319.407612][ T253] __sys_sendmsg+0xcd/0x170 [ 7319.407612][ T253] do_syscall_64+0xc6/0x1e0 [ 7319.407612][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7319.407612][ T253] [ 7319.410116][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7319.410116][ T253] netdev_get_by_index+0x5e/0x80 [ 7319.410116][ T253] fib6_nh_init+0x3d8/0x1580 [ 7319.410116][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7319.410116][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7319.410116][ T253] ipv6_add_addr+0x411/0x2000 [ 7319.410116][ T253] inet6_addr_add+0x30e/0xa40 [ 7319.410116][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7319.410116][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7319.410116][ T253] netlink_rcv_skb+0x130/0x360 [ 7319.410116][ T253] netlink_unicast+0x449/0x710 [ 7319.410116][ T253] netlink_sendmsg+0x723/0xbe0 [ 7319.410116][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7319.410116][ T253] ___sys_sendmsg+0xee/0x170 [ 7319.410116][ T253] __sys_sendmsg+0xcd/0x170 [ 7319.410116][ T253] do_syscall_64+0xc6/0x1e0 [ 7319.410116][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7319.410116][ T253] [ 7319.412632][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7319.412632][ T253] netdev_get_by_index+0x5e/0x80 [ 7319.412632][ T253] fib6_nh_init+0x3d8/0x1580 [ 7319.412632][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7319.412632][ T253] ip6_route_add+0x1c/0x140 [ 7319.412632][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7319.412632][ T253] addrconf_add_dev+0xe2/0x170 [ 7319.412632][ T253] inet6_addr_add+0x12f/0xa40 [ 7319.412632][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7319.412632][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7319.412632][ T253] netlink_rcv_skb+0x130/0x360 [ 7319.412632][ T253] netlink_unicast+0x449/0x710 [ 7319.412632][ T253] netlink_sendmsg+0x723/0xbe0 [ 7319.412632][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7319.412632][ T253] ___sys_sendmsg+0xee/0x170 [ 7319.412632][ T253] __sys_sendmsg+0xcd/0x170 [ 7319.412632][ T253] do_syscall_64+0xc6/0x1e0 [ 7319.412632][ T253] [ 7319.415107][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7319.415107][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7319.415107][ T253] ipv6_find_idev+0x102/0x170 [ 7319.415107][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7319.415107][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7319.415107][ T253] netlink_rcv_skb+0x130/0x360 [ 7319.415107][ T253] netlink_unicast+0x449/0x710 [ 7319.415107][ T253] netlink_sendmsg+0x723/0xbe0 [ 7319.415107][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7319.415107][ T253] ___sys_sendmsg+0xee/0x170 [ 7319.415107][ T253] __sys_sendmsg+0xcd/0x170 [ 7319.415107][ T253] do_syscall_64+0xc6/0x1e0 [ 7319.415107][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7319.415107][ T253] [ 7319.417053][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7319.417053][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7319.417053][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7319.417053][ T253] ipv6_find_idev+0x102/0x170 [ 7319.417053][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7319.417053][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7319.417053][ T253] netlink_rcv_skb+0x130/0x360 [ 7319.417053][ T253] netlink_unicast+0x449/0x710 [ 7319.417053][ T253] netlink_sendmsg+0x723/0xbe0 [ 7319.417053][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7319.417053][ T253] ___sys_sendmsg+0xee/0x170 [ 7319.417053][ T253] __sys_sendmsg+0xcd/0x170 [ 7319.417053][ T253] do_syscall_64+0xc6/0x1e0 [ 7319.417053][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7319.417053][ T253] [ 7329.634256][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7329.634774][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7329.634774][ T253] dst_init+0x84/0x4a0 [ 7329.634774][ T253] dst_alloc+0x97/0x150 [ 7329.634774][ T253] ip6_dst_alloc+0x23/0x90 [ 7329.634774][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7329.634774][ T253] ip6_pol_route+0x56f/0x840 [ 7329.634774][ T253] fib6_rule_lookup+0x334/0x630 [ 7329.634774][ T253] ip6_route_output_flags+0x259/0x480 [ 7329.634774][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7329.634774][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7329.634774][ T253] netlink_rcv_skb+0x130/0x360 [ 7329.634774][ T253] netlink_unicast+0x449/0x710 [ 7329.634774][ T253] netlink_sendmsg+0x723/0xbe0 [ 7329.634774][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7329.634774][ T253] ___sys_sendmsg+0xee/0x170 [ 7329.634774][ T253] __sys_sendmsg+0xcd/0x170 [ 7329.634774][ T253] do_syscall_64+0xc6/0x1e0 [ 7329.634774][ T253] [ 7329.637015][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7329.637015][ T253] netdev_get_by_index+0x5e/0x80 [ 7329.637015][ T253] fib6_nh_init+0x3d8/0x1580 [ 7329.637015][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7329.637015][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7329.637015][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7329.637015][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7329.637015][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7329.637015][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7329.637015][ T253] addrconf_dad_begin+0x310/0x670 [ 7329.637015][ T253] addrconf_dad_work+0x10b/0xab0 [ 7329.637015][ T253] process_one_work+0x84d/0x18a0 [ 7329.637015][ T253] worker_thread+0x587/0xd30 [ 7329.637015][ T253] kthread+0x28a/0x350 [ 7329.637015][ T253] ret_from_fork+0x31/0x70 [ 7329.637015][ T253] ret_from_fork_asm+0x1a/0x30 [ 7329.637015][ T253] [ 7329.639187][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7329.639187][ T253] netdev_get_by_index+0x5e/0x80 [ 7329.639187][ T253] fib6_nh_init+0x3d8/0x1580 [ 7329.639187][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7329.639187][ T253] ip6_route_add+0x1c/0x140 [ 7329.639187][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7329.639187][ T253] inet6_addr_add+0x4f8/0xa40 [ 7329.639187][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7329.639187][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7329.639187][ T253] netlink_rcv_skb+0x130/0x360 [ 7329.639187][ T253] netlink_unicast+0x449/0x710 [ 7329.639187][ T253] netlink_sendmsg+0x723/0xbe0 [ 7329.639187][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7329.639187][ T253] ___sys_sendmsg+0xee/0x170 [ 7329.639187][ T253] __sys_sendmsg+0xcd/0x170 [ 7329.639187][ T253] do_syscall_64+0xc6/0x1e0 [ 7329.639187][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7329.639187][ T253] [ 7329.641458][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7329.641458][ T253] netdev_get_by_index+0x5e/0x80 [ 7329.641458][ T253] fib6_nh_init+0x3d8/0x1580 [ 7329.641458][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7329.641458][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7329.641458][ T253] ipv6_add_addr+0x411/0x2000 [ 7329.641458][ T253] inet6_addr_add+0x30e/0xa40 [ 7329.641458][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7329.641458][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7329.641458][ T253] netlink_rcv_skb+0x130/0x360 [ 7329.641458][ T253] netlink_unicast+0x449/0x710 [ 7329.641458][ T253] netlink_sendmsg+0x723/0xbe0 [ 7329.641458][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7329.641458][ T253] ___sys_sendmsg+0xee/0x170 [ 7329.641458][ T253] __sys_sendmsg+0xcd/0x170 [ 7329.641458][ T253] do_syscall_64+0xc6/0x1e0 [ 7329.641458][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7329.641458][ T253] [ 7329.643735][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7329.643735][ T253] netdev_get_by_index+0x5e/0x80 [ 7329.643735][ T253] fib6_nh_init+0x3d8/0x1580 [ 7329.643735][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7329.643735][ T253] ip6_route_add+0x1c/0x140 [ 7329.643735][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7329.643735][ T253] addrconf_add_dev+0xe2/0x170 [ 7329.643735][ T253] inet6_addr_add+0x12f/0xa40 [ 7329.643735][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7329.643735][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7329.643735][ T253] netlink_rcv_skb+0x130/0x360 [ 7329.643735][ T253] netlink_unicast+0x449/0x710 [ 7329.643735][ T253] netlink_sendmsg+0x723/0xbe0 [ 7329.643735][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7329.643735][ T253] ___sys_sendmsg+0xee/0x170 [ 7329.643735][ T253] __sys_sendmsg+0xcd/0x170 [ 7329.643735][ T253] do_syscall_64+0xc6/0x1e0 [ 7329.643735][ T253] [ 7329.645979][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7329.645979][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7329.645979][ T253] ipv6_find_idev+0x102/0x170 [ 7329.645979][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7329.645979][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7329.645979][ T253] netlink_rcv_skb+0x130/0x360 [ 7329.645979][ T253] netlink_unicast+0x449/0x710 [ 7329.645979][ T253] netlink_sendmsg+0x723/0xbe0 [ 7329.645979][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7329.645979][ T253] ___sys_sendmsg+0xee/0x170 [ 7329.645979][ T253] __sys_sendmsg+0xcd/0x170 [ 7329.645979][ T253] do_syscall_64+0xc6/0x1e0 [ 7329.645979][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7329.645979][ T253] [ 7329.647731][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7329.647731][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7329.647731][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7329.647731][ T253] ipv6_find_idev+0x102/0x170 [ 7329.647731][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7329.647731][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7329.647731][ T253] netlink_rcv_skb+0x130/0x360 [ 7329.647731][ T253] netlink_unicast+0x449/0x710 [ 7329.647731][ T253] netlink_sendmsg+0x723/0xbe0 [ 7329.647731][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7329.647731][ T253] ___sys_sendmsg+0xee/0x170 [ 7329.647731][ T253] __sys_sendmsg+0xcd/0x170 [ 7329.647731][ T253] do_syscall_64+0xc6/0x1e0 [ 7329.647731][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7329.647731][ T253] [ 7339.890245][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7339.890744][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7339.890744][ T253] dst_init+0x84/0x4a0 [ 7339.890744][ T253] dst_alloc+0x97/0x150 [ 7339.890744][ T253] ip6_dst_alloc+0x23/0x90 [ 7339.890744][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7339.890744][ T253] ip6_pol_route+0x56f/0x840 [ 7339.890744][ T253] fib6_rule_lookup+0x334/0x630 [ 7339.890744][ T253] ip6_route_output_flags+0x259/0x480 [ 7339.890744][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7339.890744][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7339.890744][ T253] netlink_rcv_skb+0x130/0x360 [ 7339.890744][ T253] netlink_unicast+0x449/0x710 [ 7339.890744][ T253] netlink_sendmsg+0x723/0xbe0 [ 7339.890744][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7339.890744][ T253] ___sys_sendmsg+0xee/0x170 [ 7339.890744][ T253] __sys_sendmsg+0xcd/0x170 [ 7339.890744][ T253] do_syscall_64+0xc6/0x1e0 [ 7339.890744][ T253] [ 7339.893006][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7339.893006][ T253] netdev_get_by_index+0x5e/0x80 [ 7339.893006][ T253] fib6_nh_init+0x3d8/0x1580 [ 7339.893006][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7339.893006][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7339.893006][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7339.893006][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7339.893006][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7339.893006][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7339.893006][ T253] addrconf_dad_begin+0x310/0x670 [ 7339.893006][ T253] addrconf_dad_work+0x10b/0xab0 [ 7339.893006][ T253] process_one_work+0x84d/0x18a0 [ 7339.893006][ T253] worker_thread+0x587/0xd30 [ 7339.893006][ T253] kthread+0x28a/0x350 [ 7339.893006][ T253] ret_from_fork+0x31/0x70 [ 7339.893006][ T253] ret_from_fork_asm+0x1a/0x30 [ 7339.893006][ T253] [ 7339.895186][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7339.895186][ T253] netdev_get_by_index+0x5e/0x80 [ 7339.895186][ T253] fib6_nh_init+0x3d8/0x1580 [ 7339.895186][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7339.895186][ T253] ip6_route_add+0x1c/0x140 [ 7339.895186][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7339.895186][ T253] inet6_addr_add+0x4f8/0xa40 [ 7339.895186][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7339.895186][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7339.895186][ T253] netlink_rcv_skb+0x130/0x360 [ 7339.895186][ T253] netlink_unicast+0x449/0x710 [ 7339.895186][ T253] netlink_sendmsg+0x723/0xbe0 [ 7339.895186][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7339.895186][ T253] ___sys_sendmsg+0xee/0x170 [ 7339.895186][ T253] __sys_sendmsg+0xcd/0x170 [ 7339.895186][ T253] do_syscall_64+0xc6/0x1e0 [ 7339.895186][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7339.895186][ T253] [ 7339.897475][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7339.897475][ T253] netdev_get_by_index+0x5e/0x80 [ 7339.897475][ T253] fib6_nh_init+0x3d8/0x1580 [ 7339.897475][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7339.897475][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7339.897475][ T253] ipv6_add_addr+0x411/0x2000 [ 7339.897475][ T253] inet6_addr_add+0x30e/0xa40 [ 7339.897475][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7339.897475][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7339.897475][ T253] netlink_rcv_skb+0x130/0x360 [ 7339.897475][ T253] netlink_unicast+0x449/0x710 [ 7339.897475][ T253] netlink_sendmsg+0x723/0xbe0 [ 7339.897475][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7339.897475][ T253] ___sys_sendmsg+0xee/0x170 [ 7339.897475][ T253] __sys_sendmsg+0xcd/0x170 [ 7339.897475][ T253] do_syscall_64+0xc6/0x1e0 [ 7339.897475][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7339.897475][ T253] [ 7339.899744][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7339.899744][ T253] netdev_get_by_index+0x5e/0x80 [ 7339.899744][ T253] fib6_nh_init+0x3d8/0x1580 [ 7339.899744][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7339.899744][ T253] ip6_route_add+0x1c/0x140 [ 7339.899744][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7339.899744][ T253] addrconf_add_dev+0xe2/0x170 [ 7339.899744][ T253] inet6_addr_add+0x12f/0xa40 [ 7339.899744][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7339.899744][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7339.899744][ T253] netlink_rcv_skb+0x130/0x360 [ 7339.899744][ T253] netlink_unicast+0x449/0x710 [ 7339.899744][ T253] netlink_sendmsg+0x723/0xbe0 [ 7339.899744][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7339.899744][ T253] ___sys_sendmsg+0xee/0x170 [ 7339.899744][ T253] __sys_sendmsg+0xcd/0x170 [ 7339.899744][ T253] do_syscall_64+0xc6/0x1e0 [ 7339.899744][ T253] [ 7339.901973][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7339.901973][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7339.901973][ T253] ipv6_find_idev+0x102/0x170 [ 7339.901973][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7339.901973][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7339.901973][ T253] netlink_rcv_skb+0x130/0x360 [ 7339.901973][ T253] netlink_unicast+0x449/0x710 [ 7339.901973][ T253] netlink_sendmsg+0x723/0xbe0 [ 7339.901973][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7339.901973][ T253] ___sys_sendmsg+0xee/0x170 [ 7339.901973][ T253] __sys_sendmsg+0xcd/0x170 [ 7339.901973][ T253] do_syscall_64+0xc6/0x1e0 [ 7339.901973][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7339.901973][ T253] [ 7339.903715][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7339.903715][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7339.903715][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7339.903715][ T253] ipv6_find_idev+0x102/0x170 [ 7339.903715][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7339.903715][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7339.903715][ T253] netlink_rcv_skb+0x130/0x360 [ 7339.903715][ T253] netlink_unicast+0x449/0x710 [ 7339.903715][ T253] netlink_sendmsg+0x723/0xbe0 [ 7339.903715][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7339.903715][ T253] ___sys_sendmsg+0xee/0x170 [ 7339.903715][ T253] __sys_sendmsg+0xcd/0x170 [ 7339.903715][ T253] do_syscall_64+0xc6/0x1e0 [ 7339.903715][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7339.903715][ T253] [ 7350.146316][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7350.146803][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7350.146803][ T253] dst_init+0x84/0x4a0 [ 7350.146803][ T253] dst_alloc+0x97/0x150 [ 7350.146803][ T253] ip6_dst_alloc+0x23/0x90 [ 7350.146803][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7350.146803][ T253] ip6_pol_route+0x56f/0x840 [ 7350.146803][ T253] fib6_rule_lookup+0x334/0x630 [ 7350.146803][ T253] ip6_route_output_flags+0x259/0x480 [ 7350.146803][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7350.146803][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7350.146803][ T253] netlink_rcv_skb+0x130/0x360 [ 7350.146803][ T253] netlink_unicast+0x449/0x710 [ 7350.146803][ T253] netlink_sendmsg+0x723/0xbe0 [ 7350.146803][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7350.146803][ T253] ___sys_sendmsg+0xee/0x170 [ 7350.146803][ T253] __sys_sendmsg+0xcd/0x170 [ 7350.146803][ T253] do_syscall_64+0xc6/0x1e0 [ 7350.146803][ T253] [ 7350.148999][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7350.148999][ T253] netdev_get_by_index+0x5e/0x80 [ 7350.148999][ T253] fib6_nh_init+0x3d8/0x1580 [ 7350.148999][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7350.148999][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7350.148999][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7350.148999][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7350.148999][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7350.148999][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7350.148999][ T253] addrconf_dad_begin+0x310/0x670 [ 7350.148999][ T253] addrconf_dad_work+0x10b/0xab0 [ 7350.148999][ T253] process_one_work+0x84d/0x18a0 [ 7350.148999][ T253] worker_thread+0x587/0xd30 [ 7350.148999][ T253] kthread+0x28a/0x350 [ 7350.148999][ T253] ret_from_fork+0x31/0x70 [ 7350.148999][ T253] ret_from_fork_asm+0x1a/0x30 [ 7350.148999][ T253] [ 7350.151151][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7350.151151][ T253] netdev_get_by_index+0x5e/0x80 [ 7350.151151][ T253] fib6_nh_init+0x3d8/0x1580 [ 7350.151151][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7350.151151][ T253] ip6_route_add+0x1c/0x140 [ 7350.151151][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7350.151151][ T253] inet6_addr_add+0x4f8/0xa40 [ 7350.151151][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7350.151151][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7350.151151][ T253] netlink_rcv_skb+0x130/0x360 [ 7350.151151][ T253] netlink_unicast+0x449/0x710 [ 7350.151151][ T253] netlink_sendmsg+0x723/0xbe0 [ 7350.151151][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7350.151151][ T253] ___sys_sendmsg+0xee/0x170 [ 7350.151151][ T253] __sys_sendmsg+0xcd/0x170 [ 7350.151151][ T253] do_syscall_64+0xc6/0x1e0 [ 7350.151151][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7350.151151][ T253] [ 7350.153401][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7350.153401][ T253] netdev_get_by_index+0x5e/0x80 [ 7350.153401][ T253] fib6_nh_init+0x3d8/0x1580 [ 7350.153401][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7350.153401][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7350.153401][ T253] ipv6_add_addr+0x411/0x2000 [ 7350.153401][ T253] inet6_addr_add+0x30e/0xa40 [ 7350.153401][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7350.153401][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7350.153401][ T253] netlink_rcv_skb+0x130/0x360 [ 7350.153401][ T253] netlink_unicast+0x449/0x710 [ 7350.153401][ T253] netlink_sendmsg+0x723/0xbe0 [ 7350.153401][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7350.153401][ T253] ___sys_sendmsg+0xee/0x170 [ 7350.153401][ T253] __sys_sendmsg+0xcd/0x170 [ 7350.153401][ T253] do_syscall_64+0xc6/0x1e0 [ 7350.153401][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7350.153401][ T253] [ 7350.155652][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7350.155652][ T253] netdev_get_by_index+0x5e/0x80 [ 7350.155652][ T253] fib6_nh_init+0x3d8/0x1580 [ 7350.155652][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7350.155652][ T253] ip6_route_add+0x1c/0x140 [ 7350.155652][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7350.155652][ T253] addrconf_add_dev+0xe2/0x170 [ 7350.155652][ T253] inet6_addr_add+0x12f/0xa40 [ 7350.155652][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7350.155652][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7350.155652][ T253] netlink_rcv_skb+0x130/0x360 [ 7350.155652][ T253] netlink_unicast+0x449/0x710 [ 7350.155652][ T253] netlink_sendmsg+0x723/0xbe0 [ 7350.155652][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7350.155652][ T253] ___sys_sendmsg+0xee/0x170 [ 7350.155652][ T253] __sys_sendmsg+0xcd/0x170 [ 7350.155652][ T253] do_syscall_64+0xc6/0x1e0 [ 7350.155652][ T253] [ 7350.157852][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7350.157852][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7350.157852][ T253] ipv6_find_idev+0x102/0x170 [ 7350.157852][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7350.157852][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7350.157852][ T253] netlink_rcv_skb+0x130/0x360 [ 7350.157852][ T253] netlink_unicast+0x449/0x710 [ 7350.157852][ T253] netlink_sendmsg+0x723/0xbe0 [ 7350.157852][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7350.157852][ T253] ___sys_sendmsg+0xee/0x170 [ 7350.157852][ T253] __sys_sendmsg+0xcd/0x170 [ 7350.157852][ T253] do_syscall_64+0xc6/0x1e0 [ 7350.157852][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7350.157852][ T253] [ 7350.159584][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7350.159584][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7350.159584][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7350.159584][ T253] ipv6_find_idev+0x102/0x170 [ 7350.159584][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7350.159584][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7350.159584][ T253] netlink_rcv_skb+0x130/0x360 [ 7350.159584][ T253] netlink_unicast+0x449/0x710 [ 7350.159584][ T253] netlink_sendmsg+0x723/0xbe0 [ 7350.159584][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7350.159584][ T253] ___sys_sendmsg+0xee/0x170 [ 7350.159584][ T253] __sys_sendmsg+0xcd/0x170 [ 7350.159584][ T253] do_syscall_64+0xc6/0x1e0 [ 7350.159584][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7350.159584][ T253] [ 7360.402315][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7360.402792][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7360.402792][ T253] dst_init+0x84/0x4a0 [ 7360.402792][ T253] dst_alloc+0x97/0x150 [ 7360.402792][ T253] ip6_dst_alloc+0x23/0x90 [ 7360.402792][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7360.402792][ T253] ip6_pol_route+0x56f/0x840 [ 7360.402792][ T253] fib6_rule_lookup+0x334/0x630 [ 7360.402792][ T253] ip6_route_output_flags+0x259/0x480 [ 7360.402792][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7360.402792][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7360.402792][ T253] netlink_rcv_skb+0x130/0x360 [ 7360.402792][ T253] netlink_unicast+0x449/0x710 [ 7360.402792][ T253] netlink_sendmsg+0x723/0xbe0 [ 7360.402792][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7360.402792][ T253] ___sys_sendmsg+0xee/0x170 [ 7360.402792][ T253] __sys_sendmsg+0xcd/0x170 [ 7360.402792][ T253] do_syscall_64+0xc6/0x1e0 [ 7360.402792][ T253] [ 7360.404996][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7360.404996][ T253] netdev_get_by_index+0x5e/0x80 [ 7360.404996][ T253] fib6_nh_init+0x3d8/0x1580 [ 7360.404996][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7360.404996][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7360.404996][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7360.404996][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7360.404996][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7360.404996][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7360.404996][ T253] addrconf_dad_begin+0x310/0x670 [ 7360.404996][ T253] addrconf_dad_work+0x10b/0xab0 [ 7360.404996][ T253] process_one_work+0x84d/0x18a0 [ 7360.404996][ T253] worker_thread+0x587/0xd30 [ 7360.404996][ T253] kthread+0x28a/0x350 [ 7360.404996][ T253] ret_from_fork+0x31/0x70 [ 7360.404996][ T253] ret_from_fork_asm+0x1a/0x30 [ 7360.404996][ T253] [ 7360.407279][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7360.407279][ T253] netdev_get_by_index+0x5e/0x80 [ 7360.407279][ T253] fib6_nh_init+0x3d8/0x1580 [ 7360.407279][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7360.407279][ T253] ip6_route_add+0x1c/0x140 [ 7360.407279][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7360.407279][ T253] inet6_addr_add+0x4f8/0xa40 [ 7360.407279][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7360.407279][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7360.407279][ T253] netlink_rcv_skb+0x130/0x360 [ 7360.407279][ T253] netlink_unicast+0x449/0x710 [ 7360.407279][ T253] netlink_sendmsg+0x723/0xbe0 [ 7360.407279][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7360.407279][ T253] ___sys_sendmsg+0xee/0x170 [ 7360.407279][ T253] __sys_sendmsg+0xcd/0x170 [ 7360.407279][ T253] do_syscall_64+0xc6/0x1e0 [ 7360.407279][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7360.407279][ T253] [ 7360.409536][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7360.409536][ T253] netdev_get_by_index+0x5e/0x80 [ 7360.409536][ T253] fib6_nh_init+0x3d8/0x1580 [ 7360.409536][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7360.409536][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7360.409536][ T253] ipv6_add_addr+0x411/0x2000 [ 7360.409536][ T253] inet6_addr_add+0x30e/0xa40 [ 7360.409536][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7360.409536][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7360.409536][ T253] netlink_rcv_skb+0x130/0x360 [ 7360.409536][ T253] netlink_unicast+0x449/0x710 [ 7360.409536][ T253] netlink_sendmsg+0x723/0xbe0 [ 7360.409536][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7360.409536][ T253] ___sys_sendmsg+0xee/0x170 [ 7360.409536][ T253] __sys_sendmsg+0xcd/0x170 [ 7360.409536][ T253] do_syscall_64+0xc6/0x1e0 [ 7360.409536][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7360.409536][ T253] [ 7360.411782][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7360.411782][ T253] netdev_get_by_index+0x5e/0x80 [ 7360.411782][ T253] fib6_nh_init+0x3d8/0x1580 [ 7360.411782][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7360.411782][ T253] ip6_route_add+0x1c/0x140 [ 7360.411782][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7360.411782][ T253] addrconf_add_dev+0xe2/0x170 [ 7360.411782][ T253] inet6_addr_add+0x12f/0xa40 [ 7360.411782][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7360.411782][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7360.411782][ T253] netlink_rcv_skb+0x130/0x360 [ 7360.411782][ T253] netlink_unicast+0x449/0x710 [ 7360.411782][ T253] netlink_sendmsg+0x723/0xbe0 [ 7360.411782][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7360.411782][ T253] ___sys_sendmsg+0xee/0x170 [ 7360.411782][ T253] __sys_sendmsg+0xcd/0x170 [ 7360.411782][ T253] do_syscall_64+0xc6/0x1e0 [ 7360.411782][ T253] [ 7360.413988][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7360.413988][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7360.413988][ T253] ipv6_find_idev+0x102/0x170 [ 7360.413988][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7360.413988][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7360.413988][ T253] netlink_rcv_skb+0x130/0x360 [ 7360.413988][ T253] netlink_unicast+0x449/0x710 [ 7360.413988][ T253] netlink_sendmsg+0x723/0xbe0 [ 7360.413988][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7360.413988][ T253] ___sys_sendmsg+0xee/0x170 [ 7360.413988][ T253] __sys_sendmsg+0xcd/0x170 [ 7360.413988][ T253] do_syscall_64+0xc6/0x1e0 [ 7360.413988][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7360.413988][ T253] [ 7360.415728][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7360.415728][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7360.415728][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7360.415728][ T253] ipv6_find_idev+0x102/0x170 [ 7360.415728][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7360.415728][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7360.415728][ T253] netlink_rcv_skb+0x130/0x360 [ 7360.415728][ T253] netlink_unicast+0x449/0x710 [ 7360.415728][ T253] netlink_sendmsg+0x723/0xbe0 [ 7360.415728][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7360.415728][ T253] ___sys_sendmsg+0xee/0x170 [ 7360.415728][ T253] __sys_sendmsg+0xcd/0x170 [ 7360.415728][ T253] do_syscall_64+0xc6/0x1e0 [ 7360.415728][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7360.415728][ T253] [ 7370.658309][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7370.658739][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7370.658739][ T253] dst_init+0x84/0x4a0 [ 7370.658739][ T253] dst_alloc+0x97/0x150 [ 7370.658739][ T253] ip6_dst_alloc+0x23/0x90 [ 7370.658739][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7370.658739][ T253] ip6_pol_route+0x56f/0x840 [ 7370.658739][ T253] fib6_rule_lookup+0x334/0x630 [ 7370.658739][ T253] ip6_route_output_flags+0x259/0x480 [ 7370.658739][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7370.658739][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7370.658739][ T253] netlink_rcv_skb+0x130/0x360 [ 7370.658739][ T253] netlink_unicast+0x449/0x710 [ 7370.658739][ T253] netlink_sendmsg+0x723/0xbe0 [ 7370.658739][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7370.658739][ T253] ___sys_sendmsg+0xee/0x170 [ 7370.658739][ T253] __sys_sendmsg+0xcd/0x170 [ 7370.658739][ T253] do_syscall_64+0xc6/0x1e0 [ 7370.658739][ T253] [ 7370.660984][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7370.660984][ T253] netdev_get_by_index+0x5e/0x80 [ 7370.660984][ T253] fib6_nh_init+0x3d8/0x1580 [ 7370.660984][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7370.660984][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7370.660984][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7370.660984][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7370.660984][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7370.660984][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7370.660984][ T253] addrconf_dad_begin+0x310/0x670 [ 7370.660984][ T253] addrconf_dad_work+0x10b/0xab0 [ 7370.660984][ T253] process_one_work+0x84d/0x18a0 [ 7370.660984][ T253] worker_thread+0x587/0xd30 [ 7370.660984][ T253] kthread+0x28a/0x350 [ 7370.660984][ T253] ret_from_fork+0x31/0x70 [ 7370.660984][ T253] ret_from_fork_asm+0x1a/0x30 [ 7370.660984][ T253] [ 7370.663145][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7370.663145][ T253] netdev_get_by_index+0x5e/0x80 [ 7370.663145][ T253] fib6_nh_init+0x3d8/0x1580 [ 7370.663145][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7370.663145][ T253] ip6_route_add+0x1c/0x140 [ 7370.663145][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7370.663145][ T253] inet6_addr_add+0x4f8/0xa40 [ 7370.663145][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7370.663145][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7370.663145][ T253] netlink_rcv_skb+0x130/0x360 [ 7370.663145][ T253] netlink_unicast+0x449/0x710 [ 7370.663145][ T253] netlink_sendmsg+0x723/0xbe0 [ 7370.663145][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7370.663145][ T253] ___sys_sendmsg+0xee/0x170 [ 7370.663145][ T253] __sys_sendmsg+0xcd/0x170 [ 7370.663145][ T253] do_syscall_64+0xc6/0x1e0 [ 7370.663145][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7370.663145][ T253] [ 7370.665411][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7370.665411][ T253] netdev_get_by_index+0x5e/0x80 [ 7370.665411][ T253] fib6_nh_init+0x3d8/0x1580 [ 7370.665411][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7370.665411][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7370.665411][ T253] ipv6_add_addr+0x411/0x2000 [ 7370.665411][ T253] inet6_addr_add+0x30e/0xa40 [ 7370.665411][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7370.665411][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7370.665411][ T253] netlink_rcv_skb+0x130/0x360 [ 7370.665411][ T253] netlink_unicast+0x449/0x710 [ 7370.665411][ T253] netlink_sendmsg+0x723/0xbe0 [ 7370.665411][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7370.665411][ T253] ___sys_sendmsg+0xee/0x170 [ 7370.665411][ T253] __sys_sendmsg+0xcd/0x170 [ 7370.665411][ T253] do_syscall_64+0xc6/0x1e0 [ 7370.665411][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7370.665411][ T253] [ 7370.667678][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7370.667678][ T253] netdev_get_by_index+0x5e/0x80 [ 7370.667678][ T253] fib6_nh_init+0x3d8/0x1580 [ 7370.667678][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7370.667678][ T253] ip6_route_add+0x1c/0x140 [ 7370.667678][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7370.667678][ T253] addrconf_add_dev+0xe2/0x170 [ 7370.667678][ T253] inet6_addr_add+0x12f/0xa40 [ 7370.667678][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7370.667678][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7370.667678][ T253] netlink_rcv_skb+0x130/0x360 [ 7370.667678][ T253] netlink_unicast+0x449/0x710 [ 7370.667678][ T253] netlink_sendmsg+0x723/0xbe0 [ 7370.667678][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7370.667678][ T253] ___sys_sendmsg+0xee/0x170 [ 7370.667678][ T253] __sys_sendmsg+0xcd/0x170 [ 7370.667678][ T253] do_syscall_64+0xc6/0x1e0 [ 7370.667678][ T253] [ 7370.669908][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7370.669908][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7370.669908][ T253] ipv6_find_idev+0x102/0x170 [ 7370.669908][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7370.669908][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7370.669908][ T253] netlink_rcv_skb+0x130/0x360 [ 7370.669908][ T253] netlink_unicast+0x449/0x710 [ 7370.669908][ T253] netlink_sendmsg+0x723/0xbe0 [ 7370.669908][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7370.669908][ T253] ___sys_sendmsg+0xee/0x170 [ 7370.669908][ T253] __sys_sendmsg+0xcd/0x170 [ 7370.669908][ T253] do_syscall_64+0xc6/0x1e0 [ 7370.669908][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7370.669908][ T253] [ 7370.671642][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7370.671642][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7370.671642][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7370.671642][ T253] ipv6_find_idev+0x102/0x170 [ 7370.671642][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7370.671642][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7370.671642][ T253] netlink_rcv_skb+0x130/0x360 [ 7370.671642][ T253] netlink_unicast+0x449/0x710 [ 7370.671642][ T253] netlink_sendmsg+0x723/0xbe0 [ 7370.671642][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7370.671642][ T253] ___sys_sendmsg+0xee/0x170 [ 7370.671642][ T253] __sys_sendmsg+0xcd/0x170 [ 7370.671642][ T253] do_syscall_64+0xc6/0x1e0 [ 7370.671642][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7370.671642][ T253] [ 7380.914333][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7380.914790][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7380.914790][ T253] dst_init+0x84/0x4a0 [ 7380.914790][ T253] dst_alloc+0x97/0x150 [ 7380.914790][ T253] ip6_dst_alloc+0x23/0x90 [ 7380.914790][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7380.914790][ T253] ip6_pol_route+0x56f/0x840 [ 7380.914790][ T253] fib6_rule_lookup+0x334/0x630 [ 7380.914790][ T253] ip6_route_output_flags+0x259/0x480 [ 7380.914790][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7380.914790][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7380.914790][ T253] netlink_rcv_skb+0x130/0x360 [ 7380.914790][ T253] netlink_unicast+0x449/0x710 [ 7380.914790][ T253] netlink_sendmsg+0x723/0xbe0 [ 7380.914790][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7380.914790][ T253] ___sys_sendmsg+0xee/0x170 [ 7380.914790][ T253] __sys_sendmsg+0xcd/0x170 [ 7380.914790][ T253] do_syscall_64+0xc6/0x1e0 [ 7380.914790][ T253] [ 7380.917071][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7380.917071][ T253] netdev_get_by_index+0x5e/0x80 [ 7380.917071][ T253] fib6_nh_init+0x3d8/0x1580 [ 7380.917071][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7380.917071][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7380.917071][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7380.917071][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7380.917071][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7380.917071][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7380.917071][ T253] addrconf_dad_begin+0x310/0x670 [ 7380.917071][ T253] addrconf_dad_work+0x10b/0xab0 [ 7380.917071][ T253] process_one_work+0x84d/0x18a0 [ 7380.917071][ T253] worker_thread+0x587/0xd30 [ 7380.917071][ T253] kthread+0x28a/0x350 [ 7380.917071][ T253] ret_from_fork+0x31/0x70 [ 7380.917071][ T253] ret_from_fork_asm+0x1a/0x30 [ 7380.917071][ T253] [ 7380.919318][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7380.919318][ T253] netdev_get_by_index+0x5e/0x80 [ 7380.919318][ T253] fib6_nh_init+0x3d8/0x1580 [ 7380.919318][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7380.919318][ T253] ip6_route_add+0x1c/0x140 [ 7380.919318][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7380.919318][ T253] inet6_addr_add+0x4f8/0xa40 [ 7380.919318][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7380.919318][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7380.919318][ T253] netlink_rcv_skb+0x130/0x360 [ 7380.919318][ T253] netlink_unicast+0x449/0x710 [ 7380.919318][ T253] netlink_sendmsg+0x723/0xbe0 [ 7380.919318][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7380.919318][ T253] ___sys_sendmsg+0xee/0x170 [ 7380.919318][ T253] __sys_sendmsg+0xcd/0x170 [ 7380.919318][ T253] do_syscall_64+0xc6/0x1e0 [ 7380.919318][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7380.919318][ T253] [ 7380.921730][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7380.921730][ T253] netdev_get_by_index+0x5e/0x80 [ 7380.921730][ T253] fib6_nh_init+0x3d8/0x1580 [ 7380.921730][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7380.921730][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7380.921730][ T253] ipv6_add_addr+0x411/0x2000 [ 7380.921730][ T253] inet6_addr_add+0x30e/0xa40 [ 7380.921730][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7380.921730][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7380.921730][ T253] netlink_rcv_skb+0x130/0x360 [ 7380.921730][ T253] netlink_unicast+0x449/0x710 [ 7380.921730][ T253] netlink_sendmsg+0x723/0xbe0 [ 7380.921730][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7380.921730][ T253] ___sys_sendmsg+0xee/0x170 [ 7380.921730][ T253] __sys_sendmsg+0xcd/0x170 [ 7380.921730][ T253] do_syscall_64+0xc6/0x1e0 [ 7380.921730][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7380.921730][ T253] [ 7380.923992][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7380.923992][ T253] netdev_get_by_index+0x5e/0x80 [ 7380.923992][ T253] fib6_nh_init+0x3d8/0x1580 [ 7380.923992][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7380.923992][ T253] ip6_route_add+0x1c/0x140 [ 7380.923992][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7380.923992][ T253] addrconf_add_dev+0xe2/0x170 [ 7380.923992][ T253] inet6_addr_add+0x12f/0xa40 [ 7380.923992][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7380.923992][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7380.923992][ T253] netlink_rcv_skb+0x130/0x360 [ 7380.923992][ T253] netlink_unicast+0x449/0x710 [ 7380.923992][ T253] netlink_sendmsg+0x723/0xbe0 [ 7380.923992][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7380.923992][ T253] ___sys_sendmsg+0xee/0x170 [ 7380.923992][ T253] __sys_sendmsg+0xcd/0x170 [ 7380.923992][ T253] do_syscall_64+0xc6/0x1e0 [ 7380.923992][ T253] [ 7380.926232][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7380.926232][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7380.926232][ T253] ipv6_find_idev+0x102/0x170 [ 7380.926232][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7380.926232][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7380.926232][ T253] netlink_rcv_skb+0x130/0x360 [ 7380.926232][ T253] netlink_unicast+0x449/0x710 [ 7380.926232][ T253] netlink_sendmsg+0x723/0xbe0 [ 7380.926232][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7380.926232][ T253] ___sys_sendmsg+0xee/0x170 [ 7380.926232][ T253] __sys_sendmsg+0xcd/0x170 [ 7380.926232][ T253] do_syscall_64+0xc6/0x1e0 [ 7380.926232][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7380.926232][ T253] [ 7380.928022][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7380.928022][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7380.928022][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7380.928022][ T253] ipv6_find_idev+0x102/0x170 [ 7380.928022][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7380.928022][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7380.928022][ T253] netlink_rcv_skb+0x130/0x360 [ 7380.928022][ T253] netlink_unicast+0x449/0x710 [ 7380.928022][ T253] netlink_sendmsg+0x723/0xbe0 [ 7380.928022][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7380.928022][ T253] ___sys_sendmsg+0xee/0x170 [ 7380.928022][ T253] __sys_sendmsg+0xcd/0x170 [ 7380.928022][ T253] do_syscall_64+0xc6/0x1e0 [ 7380.928022][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7380.928022][ T253] [ 7391.170335][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7391.170828][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7391.170828][ T253] dst_init+0x84/0x4a0 [ 7391.170828][ T253] dst_alloc+0x97/0x150 [ 7391.170828][ T253] ip6_dst_alloc+0x23/0x90 [ 7391.170828][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7391.170828][ T253] ip6_pol_route+0x56f/0x840 [ 7391.170828][ T253] fib6_rule_lookup+0x334/0x630 [ 7391.170828][ T253] ip6_route_output_flags+0x259/0x480 [ 7391.170828][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7391.170828][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7391.170828][ T253] netlink_rcv_skb+0x130/0x360 [ 7391.170828][ T253] netlink_unicast+0x449/0x710 [ 7391.170828][ T253] netlink_sendmsg+0x723/0xbe0 [ 7391.170828][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7391.170828][ T253] ___sys_sendmsg+0xee/0x170 [ 7391.170828][ T253] __sys_sendmsg+0xcd/0x170 [ 7391.170828][ T253] do_syscall_64+0xc6/0x1e0 [ 7391.170828][ T253] [ 7391.173029][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7391.173029][ T253] netdev_get_by_index+0x5e/0x80 [ 7391.173029][ T253] fib6_nh_init+0x3d8/0x1580 [ 7391.173029][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7391.173029][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7391.173029][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7391.173029][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7391.173029][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7391.173029][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7391.173029][ T253] addrconf_dad_begin+0x310/0x670 [ 7391.173029][ T253] addrconf_dad_work+0x10b/0xab0 [ 7391.173029][ T253] process_one_work+0x84d/0x18a0 [ 7391.173029][ T253] worker_thread+0x587/0xd30 [ 7391.173029][ T253] kthread+0x28a/0x350 [ 7391.173029][ T253] ret_from_fork+0x31/0x70 [ 7391.173029][ T253] ret_from_fork_asm+0x1a/0x30 [ 7391.173029][ T253] [ 7391.175185][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7391.175185][ T253] netdev_get_by_index+0x5e/0x80 [ 7391.175185][ T253] fib6_nh_init+0x3d8/0x1580 [ 7391.175185][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7391.175185][ T253] ip6_route_add+0x1c/0x140 [ 7391.175185][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7391.175185][ T253] inet6_addr_add+0x4f8/0xa40 [ 7391.175185][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7391.175185][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7391.175185][ T253] netlink_rcv_skb+0x130/0x360 [ 7391.175185][ T253] netlink_unicast+0x449/0x710 [ 7391.175185][ T253] netlink_sendmsg+0x723/0xbe0 [ 7391.175185][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7391.175185][ T253] ___sys_sendmsg+0xee/0x170 [ 7391.175185][ T253] __sys_sendmsg+0xcd/0x170 [ 7391.175185][ T253] do_syscall_64+0xc6/0x1e0 [ 7391.175185][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7391.175185][ T253] [ 7391.177444][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7391.177444][ T253] netdev_get_by_index+0x5e/0x80 [ 7391.177444][ T253] fib6_nh_init+0x3d8/0x1580 [ 7391.177444][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7391.177444][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7391.177444][ T253] ipv6_add_addr+0x411/0x2000 [ 7391.177444][ T253] inet6_addr_add+0x30e/0xa40 [ 7391.177444][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7391.177444][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7391.177444][ T253] netlink_rcv_skb+0x130/0x360 [ 7391.177444][ T253] netlink_unicast+0x449/0x710 [ 7391.177444][ T253] netlink_sendmsg+0x723/0xbe0 [ 7391.177444][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7391.177444][ T253] ___sys_sendmsg+0xee/0x170 [ 7391.177444][ T253] __sys_sendmsg+0xcd/0x170 [ 7391.177444][ T253] do_syscall_64+0xc6/0x1e0 [ 7391.177444][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7391.177444][ T253] [ 7391.179696][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7391.179696][ T253] netdev_get_by_index+0x5e/0x80 [ 7391.179696][ T253] fib6_nh_init+0x3d8/0x1580 [ 7391.179696][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7391.179696][ T253] ip6_route_add+0x1c/0x140 [ 7391.179696][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7391.179696][ T253] addrconf_add_dev+0xe2/0x170 [ 7391.179696][ T253] inet6_addr_add+0x12f/0xa40 [ 7391.179696][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7391.179696][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7391.179696][ T253] netlink_rcv_skb+0x130/0x360 [ 7391.179696][ T253] netlink_unicast+0x449/0x710 [ 7391.179696][ T253] netlink_sendmsg+0x723/0xbe0 [ 7391.179696][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7391.179696][ T253] ___sys_sendmsg+0xee/0x170 [ 7391.179696][ T253] __sys_sendmsg+0xcd/0x170 [ 7391.179696][ T253] do_syscall_64+0xc6/0x1e0 [ 7391.179696][ T253] [ 7391.181910][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7391.181910][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7391.181910][ T253] ipv6_find_idev+0x102/0x170 [ 7391.181910][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7391.181910][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7391.181910][ T253] netlink_rcv_skb+0x130/0x360 [ 7391.181910][ T253] netlink_unicast+0x449/0x710 [ 7391.181910][ T253] netlink_sendmsg+0x723/0xbe0 [ 7391.181910][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7391.181910][ T253] ___sys_sendmsg+0xee/0x170 [ 7391.181910][ T253] __sys_sendmsg+0xcd/0x170 [ 7391.181910][ T253] do_syscall_64+0xc6/0x1e0 [ 7391.181910][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7391.181910][ T253] [ 7391.183634][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7391.183634][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7391.183634][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7391.183634][ T253] ipv6_find_idev+0x102/0x170 [ 7391.183634][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7391.183634][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7391.183634][ T253] netlink_rcv_skb+0x130/0x360 [ 7391.183634][ T253] netlink_unicast+0x449/0x710 [ 7391.183634][ T253] netlink_sendmsg+0x723/0xbe0 [ 7391.183634][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7391.183634][ T253] ___sys_sendmsg+0xee/0x170 [ 7391.183634][ T253] __sys_sendmsg+0xcd/0x170 [ 7391.183634][ T253] do_syscall_64+0xc6/0x1e0 [ 7391.183634][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7391.183634][ T253] [ 7401.426302][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7401.426731][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7401.426731][ T253] dst_init+0x84/0x4a0 [ 7401.426731][ T253] dst_alloc+0x97/0x150 [ 7401.426731][ T253] ip6_dst_alloc+0x23/0x90 [ 7401.426731][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7401.426731][ T253] ip6_pol_route+0x56f/0x840 [ 7401.426731][ T253] fib6_rule_lookup+0x334/0x630 [ 7401.426731][ T253] ip6_route_output_flags+0x259/0x480 [ 7401.426731][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7401.426731][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7401.426731][ T253] netlink_rcv_skb+0x130/0x360 [ 7401.426731][ T253] netlink_unicast+0x449/0x710 [ 7401.426731][ T253] netlink_sendmsg+0x723/0xbe0 [ 7401.426731][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7401.426731][ T253] ___sys_sendmsg+0xee/0x170 [ 7401.426731][ T253] __sys_sendmsg+0xcd/0x170 [ 7401.426731][ T253] do_syscall_64+0xc6/0x1e0 [ 7401.426731][ T253] [ 7401.428940][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7401.428940][ T253] netdev_get_by_index+0x5e/0x80 [ 7401.428940][ T253] fib6_nh_init+0x3d8/0x1580 [ 7401.428940][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7401.428940][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7401.428940][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7401.428940][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7401.428940][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7401.428940][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7401.428940][ T253] addrconf_dad_begin+0x310/0x670 [ 7401.428940][ T253] addrconf_dad_work+0x10b/0xab0 [ 7401.428940][ T253] process_one_work+0x84d/0x18a0 [ 7401.428940][ T253] worker_thread+0x587/0xd30 [ 7401.428940][ T253] kthread+0x28a/0x350 [ 7401.428940][ T253] ret_from_fork+0x31/0x70 [ 7401.428940][ T253] ret_from_fork_asm+0x1a/0x30 [ 7401.428940][ T253] [ 7401.431097][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7401.431097][ T253] netdev_get_by_index+0x5e/0x80 [ 7401.431097][ T253] fib6_nh_init+0x3d8/0x1580 [ 7401.431097][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7401.431097][ T253] ip6_route_add+0x1c/0x140 [ 7401.431097][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7401.431097][ T253] inet6_addr_add+0x4f8/0xa40 [ 7401.431097][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7401.431097][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7401.431097][ T253] netlink_rcv_skb+0x130/0x360 [ 7401.431097][ T253] netlink_unicast+0x449/0x710 [ 7401.431097][ T253] netlink_sendmsg+0x723/0xbe0 [ 7401.431097][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7401.431097][ T253] ___sys_sendmsg+0xee/0x170 [ 7401.431097][ T253] __sys_sendmsg+0xcd/0x170 [ 7401.431097][ T253] do_syscall_64+0xc6/0x1e0 [ 7401.431097][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7401.431097][ T253] [ 7401.433351][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7401.433351][ T253] netdev_get_by_index+0x5e/0x80 [ 7401.433351][ T253] fib6_nh_init+0x3d8/0x1580 [ 7401.433351][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7401.433351][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7401.433351][ T253] ipv6_add_addr+0x411/0x2000 [ 7401.433351][ T253] inet6_addr_add+0x30e/0xa40 [ 7401.433351][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7401.433351][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7401.433351][ T253] netlink_rcv_skb+0x130/0x360 [ 7401.433351][ T253] netlink_unicast+0x449/0x710 [ 7401.433351][ T253] netlink_sendmsg+0x723/0xbe0 [ 7401.433351][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7401.433351][ T253] ___sys_sendmsg+0xee/0x170 [ 7401.433351][ T253] __sys_sendmsg+0xcd/0x170 [ 7401.433351][ T253] do_syscall_64+0xc6/0x1e0 [ 7401.433351][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7401.433351][ T253] [ 7401.435635][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7401.435635][ T253] netdev_get_by_index+0x5e/0x80 [ 7401.435635][ T253] fib6_nh_init+0x3d8/0x1580 [ 7401.435635][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7401.435635][ T253] ip6_route_add+0x1c/0x140 [ 7401.435635][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7401.435635][ T253] addrconf_add_dev+0xe2/0x170 [ 7401.435635][ T253] inet6_addr_add+0x12f/0xa40 [ 7401.435635][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7401.435635][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7401.435635][ T253] netlink_rcv_skb+0x130/0x360 [ 7401.435635][ T253] netlink_unicast+0x449/0x710 [ 7401.435635][ T253] netlink_sendmsg+0x723/0xbe0 [ 7401.435635][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7401.435635][ T253] ___sys_sendmsg+0xee/0x170 [ 7401.435635][ T253] __sys_sendmsg+0xcd/0x170 [ 7401.435635][ T253] do_syscall_64+0xc6/0x1e0 [ 7401.435635][ T253] [ 7401.437847][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7401.437847][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7401.437847][ T253] ipv6_find_idev+0x102/0x170 [ 7401.437847][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7401.437847][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7401.437847][ T253] netlink_rcv_skb+0x130/0x360 [ 7401.437847][ T253] netlink_unicast+0x449/0x710 [ 7401.437847][ T253] netlink_sendmsg+0x723/0xbe0 [ 7401.437847][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7401.437847][ T253] ___sys_sendmsg+0xee/0x170 [ 7401.437847][ T253] __sys_sendmsg+0xcd/0x170 [ 7401.437847][ T253] do_syscall_64+0xc6/0x1e0 [ 7401.437847][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7401.437847][ T253] [ 7401.439594][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7401.439594][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7401.439594][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7401.439594][ T253] ipv6_find_idev+0x102/0x170 [ 7401.439594][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7401.439594][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7401.439594][ T253] netlink_rcv_skb+0x130/0x360 [ 7401.439594][ T253] netlink_unicast+0x449/0x710 [ 7401.439594][ T253] netlink_sendmsg+0x723/0xbe0 [ 7401.439594][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7401.439594][ T253] ___sys_sendmsg+0xee/0x170 [ 7401.439594][ T253] __sys_sendmsg+0xcd/0x170 [ 7401.439594][ T253] do_syscall_64+0xc6/0x1e0 [ 7401.439594][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7401.439594][ T253] [ 7411.682374][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7411.682830][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7411.682830][ T253] dst_init+0x84/0x4a0 [ 7411.682830][ T253] dst_alloc+0x97/0x150 [ 7411.682830][ T253] ip6_dst_alloc+0x23/0x90 [ 7411.682830][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7411.682830][ T253] ip6_pol_route+0x56f/0x840 [ 7411.682830][ T253] fib6_rule_lookup+0x334/0x630 [ 7411.682830][ T253] ip6_route_output_flags+0x259/0x480 [ 7411.682830][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7411.682830][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7411.682830][ T253] netlink_rcv_skb+0x130/0x360 [ 7411.682830][ T253] netlink_unicast+0x449/0x710 [ 7411.682830][ T253] netlink_sendmsg+0x723/0xbe0 [ 7411.682830][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7411.682830][ T253] ___sys_sendmsg+0xee/0x170 [ 7411.682830][ T253] __sys_sendmsg+0xcd/0x170 [ 7411.682830][ T253] do_syscall_64+0xc6/0x1e0 [ 7411.682830][ T253] [ 7411.685039][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7411.685039][ T253] netdev_get_by_index+0x5e/0x80 [ 7411.685039][ T253] fib6_nh_init+0x3d8/0x1580 [ 7411.685039][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7411.685039][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7411.685039][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7411.685039][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7411.685039][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7411.685039][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7411.685039][ T253] addrconf_dad_begin+0x310/0x670 [ 7411.685039][ T253] addrconf_dad_work+0x10b/0xab0 [ 7411.685039][ T253] process_one_work+0x84d/0x18a0 [ 7411.685039][ T253] worker_thread+0x587/0xd30 [ 7411.685039][ T253] kthread+0x28a/0x350 [ 7411.685039][ T253] ret_from_fork+0x31/0x70 [ 7411.685039][ T253] ret_from_fork_asm+0x1a/0x30 [ 7411.685039][ T253] [ 7411.687211][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7411.687211][ T253] netdev_get_by_index+0x5e/0x80 [ 7411.687211][ T253] fib6_nh_init+0x3d8/0x1580 [ 7411.687211][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7411.687211][ T253] ip6_route_add+0x1c/0x140 [ 7411.687211][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7411.687211][ T253] inet6_addr_add+0x4f8/0xa40 [ 7411.687211][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7411.687211][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7411.687211][ T253] netlink_rcv_skb+0x130/0x360 [ 7411.687211][ T253] netlink_unicast+0x449/0x710 [ 7411.687211][ T253] netlink_sendmsg+0x723/0xbe0 [ 7411.687211][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7411.687211][ T253] ___sys_sendmsg+0xee/0x170 [ 7411.687211][ T253] __sys_sendmsg+0xcd/0x170 [ 7411.687211][ T253] do_syscall_64+0xc6/0x1e0 [ 7411.687211][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7411.687211][ T253] [ 7411.689472][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7411.689472][ T253] netdev_get_by_index+0x5e/0x80 [ 7411.689472][ T253] fib6_nh_init+0x3d8/0x1580 [ 7411.689472][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7411.689472][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7411.689472][ T253] ipv6_add_addr+0x411/0x2000 [ 7411.689472][ T253] inet6_addr_add+0x30e/0xa40 [ 7411.689472][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7411.689472][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7411.689472][ T253] netlink_rcv_skb+0x130/0x360 [ 7411.689472][ T253] netlink_unicast+0x449/0x710 [ 7411.689472][ T253] netlink_sendmsg+0x723/0xbe0 [ 7411.689472][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7411.689472][ T253] ___sys_sendmsg+0xee/0x170 [ 7411.689472][ T253] __sys_sendmsg+0xcd/0x170 [ 7411.689472][ T253] do_syscall_64+0xc6/0x1e0 [ 7411.689472][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7411.689472][ T253] [ 7411.691733][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7411.691733][ T253] netdev_get_by_index+0x5e/0x80 [ 7411.691733][ T253] fib6_nh_init+0x3d8/0x1580 [ 7411.691733][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7411.691733][ T253] ip6_route_add+0x1c/0x140 [ 7411.691733][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7411.691733][ T253] addrconf_add_dev+0xe2/0x170 [ 7411.691733][ T253] inet6_addr_add+0x12f/0xa40 [ 7411.691733][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7411.691733][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7411.691733][ T253] netlink_rcv_skb+0x130/0x360 [ 7411.691733][ T253] netlink_unicast+0x449/0x710 [ 7411.691733][ T253] netlink_sendmsg+0x723/0xbe0 [ 7411.691733][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7411.691733][ T253] ___sys_sendmsg+0xee/0x170 [ 7411.691733][ T253] __sys_sendmsg+0xcd/0x170 [ 7411.691733][ T253] do_syscall_64+0xc6/0x1e0 [ 7411.691733][ T253] [ 7411.693947][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7411.693947][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7411.693947][ T253] ipv6_find_idev+0x102/0x170 [ 7411.693947][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7411.693947][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7411.693947][ T253] netlink_rcv_skb+0x130/0x360 [ 7411.693947][ T253] netlink_unicast+0x449/0x710 [ 7411.693947][ T253] netlink_sendmsg+0x723/0xbe0 [ 7411.693947][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7411.693947][ T253] ___sys_sendmsg+0xee/0x170 [ 7411.693947][ T253] __sys_sendmsg+0xcd/0x170 [ 7411.693947][ T253] do_syscall_64+0xc6/0x1e0 [ 7411.693947][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7411.693947][ T253] [ 7411.695677][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7411.695677][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7411.695677][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7411.695677][ T253] ipv6_find_idev+0x102/0x170 [ 7411.695677][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7411.695677][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7411.695677][ T253] netlink_rcv_skb+0x130/0x360 [ 7411.695677][ T253] netlink_unicast+0x449/0x710 [ 7411.695677][ T253] netlink_sendmsg+0x723/0xbe0 [ 7411.695677][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7411.695677][ T253] ___sys_sendmsg+0xee/0x170 [ 7411.695677][ T253] __sys_sendmsg+0xcd/0x170 [ 7411.695677][ T253] do_syscall_64+0xc6/0x1e0 [ 7411.695677][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7411.695677][ T253] [ 7421.938332][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7421.938806][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7421.938806][ T253] dst_init+0x84/0x4a0 [ 7421.938806][ T253] dst_alloc+0x97/0x150 [ 7421.938806][ T253] ip6_dst_alloc+0x23/0x90 [ 7421.938806][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7421.938806][ T253] ip6_pol_route+0x56f/0x840 [ 7421.938806][ T253] fib6_rule_lookup+0x334/0x630 [ 7421.938806][ T253] ip6_route_output_flags+0x259/0x480 [ 7421.938806][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7421.938806][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7421.938806][ T253] netlink_rcv_skb+0x130/0x360 [ 7421.938806][ T253] netlink_unicast+0x449/0x710 [ 7421.938806][ T253] netlink_sendmsg+0x723/0xbe0 [ 7421.938806][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7421.938806][ T253] ___sys_sendmsg+0xee/0x170 [ 7421.938806][ T253] __sys_sendmsg+0xcd/0x170 [ 7421.938806][ T253] do_syscall_64+0xc6/0x1e0 [ 7421.938806][ T253] [ 7421.941009][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7421.941009][ T253] netdev_get_by_index+0x5e/0x80 [ 7421.941009][ T253] fib6_nh_init+0x3d8/0x1580 [ 7421.941009][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7421.941009][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7421.941009][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7421.941009][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7421.941009][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7421.941009][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7421.941009][ T253] addrconf_dad_begin+0x310/0x670 [ 7421.941009][ T253] addrconf_dad_work+0x10b/0xab0 [ 7421.941009][ T253] process_one_work+0x84d/0x18a0 [ 7421.941009][ T253] worker_thread+0x587/0xd30 [ 7421.941009][ T253] kthread+0x28a/0x350 [ 7421.941009][ T253] ret_from_fork+0x31/0x70 [ 7421.941009][ T253] ret_from_fork_asm+0x1a/0x30 [ 7421.941009][ T253] [ 7421.943166][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7421.943166][ T253] netdev_get_by_index+0x5e/0x80 [ 7421.943166][ T253] fib6_nh_init+0x3d8/0x1580 [ 7421.943166][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7421.943166][ T253] ip6_route_add+0x1c/0x140 [ 7421.943166][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7421.943166][ T253] inet6_addr_add+0x4f8/0xa40 [ 7421.943166][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7421.943166][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7421.943166][ T253] netlink_rcv_skb+0x130/0x360 [ 7421.943166][ T253] netlink_unicast+0x449/0x710 [ 7421.943166][ T253] netlink_sendmsg+0x723/0xbe0 [ 7421.943166][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7421.943166][ T253] ___sys_sendmsg+0xee/0x170 [ 7421.943166][ T253] __sys_sendmsg+0xcd/0x170 [ 7421.943166][ T253] do_syscall_64+0xc6/0x1e0 [ 7421.943166][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7421.943166][ T253] [ 7421.945418][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7421.945418][ T253] netdev_get_by_index+0x5e/0x80 [ 7421.945418][ T253] fib6_nh_init+0x3d8/0x1580 [ 7421.945418][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7421.945418][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7421.945418][ T253] ipv6_add_addr+0x411/0x2000 [ 7421.945418][ T253] inet6_addr_add+0x30e/0xa40 [ 7421.945418][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7421.945418][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7421.945418][ T253] netlink_rcv_skb+0x130/0x360 [ 7421.945418][ T253] netlink_unicast+0x449/0x710 [ 7421.945418][ T253] netlink_sendmsg+0x723/0xbe0 [ 7421.945418][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7421.945418][ T253] ___sys_sendmsg+0xee/0x170 [ 7421.945418][ T253] __sys_sendmsg+0xcd/0x170 [ 7421.945418][ T253] do_syscall_64+0xc6/0x1e0 [ 7421.945418][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7421.945418][ T253] [ 7421.947661][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7421.947661][ T253] netdev_get_by_index+0x5e/0x80 [ 7421.947661][ T253] fib6_nh_init+0x3d8/0x1580 [ 7421.947661][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7421.947661][ T253] ip6_route_add+0x1c/0x140 [ 7421.947661][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7421.947661][ T253] addrconf_add_dev+0xe2/0x170 [ 7421.947661][ T253] inet6_addr_add+0x12f/0xa40 [ 7421.947661][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7421.947661][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7421.947661][ T253] netlink_rcv_skb+0x130/0x360 [ 7421.947661][ T253] netlink_unicast+0x449/0x710 [ 7421.947661][ T253] netlink_sendmsg+0x723/0xbe0 [ 7421.947661][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7421.947661][ T253] ___sys_sendmsg+0xee/0x170 [ 7421.947661][ T253] __sys_sendmsg+0xcd/0x170 [ 7421.947661][ T253] do_syscall_64+0xc6/0x1e0 [ 7421.947661][ T253] [ 7421.949863][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7421.949863][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7421.949863][ T253] ipv6_find_idev+0x102/0x170 [ 7421.949863][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7421.949863][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7421.949863][ T253] netlink_rcv_skb+0x130/0x360 [ 7421.949863][ T253] netlink_unicast+0x449/0x710 [ 7421.949863][ T253] netlink_sendmsg+0x723/0xbe0 [ 7421.949863][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7421.949863][ T253] ___sys_sendmsg+0xee/0x170 [ 7421.949863][ T253] __sys_sendmsg+0xcd/0x170 [ 7421.949863][ T253] do_syscall_64+0xc6/0x1e0 [ 7421.949863][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7421.949863][ T253] [ 7421.951592][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7421.951592][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7421.951592][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7421.951592][ T253] ipv6_find_idev+0x102/0x170 [ 7421.951592][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7421.951592][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7421.951592][ T253] netlink_rcv_skb+0x130/0x360 [ 7421.951592][ T253] netlink_unicast+0x449/0x710 [ 7421.951592][ T253] netlink_sendmsg+0x723/0xbe0 [ 7421.951592][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7421.951592][ T253] ___sys_sendmsg+0xee/0x170 [ 7421.951592][ T253] __sys_sendmsg+0xcd/0x170 [ 7421.951592][ T253] do_syscall_64+0xc6/0x1e0 [ 7421.951592][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7421.951592][ T253] [ 7432.170320][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7432.170742][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7432.170742][ T253] dst_init+0x84/0x4a0 [ 7432.170742][ T253] dst_alloc+0x97/0x150 [ 7432.170742][ T253] ip6_dst_alloc+0x23/0x90 [ 7432.170742][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7432.170742][ T253] ip6_pol_route+0x56f/0x840 [ 7432.170742][ T253] fib6_rule_lookup+0x334/0x630 [ 7432.170742][ T253] ip6_route_output_flags+0x259/0x480 [ 7432.170742][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7432.170742][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7432.170742][ T253] netlink_rcv_skb+0x130/0x360 [ 7432.170742][ T253] netlink_unicast+0x449/0x710 [ 7432.170742][ T253] netlink_sendmsg+0x723/0xbe0 [ 7432.170742][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7432.170742][ T253] ___sys_sendmsg+0xee/0x170 [ 7432.170742][ T253] __sys_sendmsg+0xcd/0x170 [ 7432.170742][ T253] do_syscall_64+0xc6/0x1e0 [ 7432.170742][ T253] [ 7432.172947][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7432.172947][ T253] netdev_get_by_index+0x5e/0x80 [ 7432.172947][ T253] fib6_nh_init+0x3d8/0x1580 [ 7432.172947][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7432.172947][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7432.172947][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7432.172947][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7432.172947][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7432.172947][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7432.172947][ T253] addrconf_dad_begin+0x310/0x670 [ 7432.172947][ T253] addrconf_dad_work+0x10b/0xab0 [ 7432.172947][ T253] process_one_work+0x84d/0x18a0 [ 7432.172947][ T253] worker_thread+0x587/0xd30 [ 7432.172947][ T253] kthread+0x28a/0x350 [ 7432.172947][ T253] ret_from_fork+0x31/0x70 [ 7432.172947][ T253] ret_from_fork_asm+0x1a/0x30 [ 7432.172947][ T253] [ 7432.175101][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7432.175101][ T253] netdev_get_by_index+0x5e/0x80 [ 7432.175101][ T253] fib6_nh_init+0x3d8/0x1580 [ 7432.175101][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7432.175101][ T253] ip6_route_add+0x1c/0x140 [ 7432.175101][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7432.175101][ T253] inet6_addr_add+0x4f8/0xa40 [ 7432.175101][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7432.175101][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7432.175101][ T253] netlink_rcv_skb+0x130/0x360 [ 7432.175101][ T253] netlink_unicast+0x449/0x710 [ 7432.175101][ T253] netlink_sendmsg+0x723/0xbe0 [ 7432.175101][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7432.175101][ T253] ___sys_sendmsg+0xee/0x170 [ 7432.175101][ T253] __sys_sendmsg+0xcd/0x170 [ 7432.175101][ T253] do_syscall_64+0xc6/0x1e0 [ 7432.175101][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7432.175101][ T253] [ 7432.177378][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7432.177378][ T253] netdev_get_by_index+0x5e/0x80 [ 7432.177378][ T253] fib6_nh_init+0x3d8/0x1580 [ 7432.177378][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7432.177378][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7432.177378][ T253] ipv6_add_addr+0x411/0x2000 [ 7432.177378][ T253] inet6_addr_add+0x30e/0xa40 [ 7432.177378][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7432.177378][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7432.177378][ T253] netlink_rcv_skb+0x130/0x360 [ 7432.177378][ T253] netlink_unicast+0x449/0x710 [ 7432.177378][ T253] netlink_sendmsg+0x723/0xbe0 [ 7432.177378][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7432.177378][ T253] ___sys_sendmsg+0xee/0x170 [ 7432.177378][ T253] __sys_sendmsg+0xcd/0x170 [ 7432.177378][ T253] do_syscall_64+0xc6/0x1e0 [ 7432.177378][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7432.177378][ T253] [ 7432.179631][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7432.179631][ T253] netdev_get_by_index+0x5e/0x80 [ 7432.179631][ T253] fib6_nh_init+0x3d8/0x1580 [ 7432.179631][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7432.179631][ T253] ip6_route_add+0x1c/0x140 [ 7432.179631][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7432.179631][ T253] addrconf_add_dev+0xe2/0x170 [ 7432.179631][ T253] inet6_addr_add+0x12f/0xa40 [ 7432.179631][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7432.179631][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7432.179631][ T253] netlink_rcv_skb+0x130/0x360 [ 7432.179631][ T253] netlink_unicast+0x449/0x710 [ 7432.179631][ T253] netlink_sendmsg+0x723/0xbe0 [ 7432.179631][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7432.179631][ T253] ___sys_sendmsg+0xee/0x170 [ 7432.179631][ T253] __sys_sendmsg+0xcd/0x170 [ 7432.179631][ T253] do_syscall_64+0xc6/0x1e0 [ 7432.179631][ T253] [ 7432.181834][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7432.181834][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7432.181834][ T253] ipv6_find_idev+0x102/0x170 [ 7432.181834][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7432.181834][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7432.181834][ T253] netlink_rcv_skb+0x130/0x360 [ 7432.181834][ T253] netlink_unicast+0x449/0x710 [ 7432.181834][ T253] netlink_sendmsg+0x723/0xbe0 [ 7432.181834][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7432.181834][ T253] ___sys_sendmsg+0xee/0x170 [ 7432.181834][ T253] __sys_sendmsg+0xcd/0x170 [ 7432.181834][ T253] do_syscall_64+0xc6/0x1e0 [ 7432.181834][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7432.181834][ T253] [ 7432.183561][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7432.183561][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7432.183561][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7432.183561][ T253] ipv6_find_idev+0x102/0x170 [ 7432.183561][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7432.183561][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7432.183561][ T253] netlink_rcv_skb+0x130/0x360 [ 7432.183561][ T253] netlink_unicast+0x449/0x710 [ 7432.183561][ T253] netlink_sendmsg+0x723/0xbe0 [ 7432.183561][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7432.183561][ T253] ___sys_sendmsg+0xee/0x170 [ 7432.183561][ T253] __sys_sendmsg+0xcd/0x170 [ 7432.183561][ T253] do_syscall_64+0xc6/0x1e0 [ 7432.183561][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7432.183561][ T253] [ 7442.426266][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7442.426779][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7442.426779][ T253] dst_init+0x84/0x4a0 [ 7442.426779][ T253] dst_alloc+0x97/0x150 [ 7442.426779][ T253] ip6_dst_alloc+0x23/0x90 [ 7442.426779][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7442.426779][ T253] ip6_pol_route+0x56f/0x840 [ 7442.426779][ T253] fib6_rule_lookup+0x334/0x630 [ 7442.426779][ T253] ip6_route_output_flags+0x259/0x480 [ 7442.426779][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7442.426779][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7442.426779][ T253] netlink_rcv_skb+0x130/0x360 [ 7442.426779][ T253] netlink_unicast+0x449/0x710 [ 7442.426779][ T253] netlink_sendmsg+0x723/0xbe0 [ 7442.426779][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7442.426779][ T253] ___sys_sendmsg+0xee/0x170 [ 7442.426779][ T253] __sys_sendmsg+0xcd/0x170 [ 7442.426779][ T253] do_syscall_64+0xc6/0x1e0 [ 7442.426779][ T253] [ 7442.428985][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7442.428985][ T253] netdev_get_by_index+0x5e/0x80 [ 7442.428985][ T253] fib6_nh_init+0x3d8/0x1580 [ 7442.428985][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7442.428985][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7442.428985][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7442.428985][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7442.428985][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7442.428985][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7442.428985][ T253] addrconf_dad_begin+0x310/0x670 [ 7442.428985][ T253] addrconf_dad_work+0x10b/0xab0 [ 7442.428985][ T253] process_one_work+0x84d/0x18a0 [ 7442.428985][ T253] worker_thread+0x587/0xd30 [ 7442.428985][ T253] kthread+0x28a/0x350 [ 7442.428985][ T253] ret_from_fork+0x31/0x70 [ 7442.428985][ T253] ret_from_fork_asm+0x1a/0x30 [ 7442.428985][ T253] [ 7442.431122][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7442.431122][ T253] netdev_get_by_index+0x5e/0x80 [ 7442.431122][ T253] fib6_nh_init+0x3d8/0x1580 [ 7442.431122][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7442.431122][ T253] ip6_route_add+0x1c/0x140 [ 7442.431122][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7442.431122][ T253] inet6_addr_add+0x4f8/0xa40 [ 7442.431122][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7442.431122][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7442.431122][ T253] netlink_rcv_skb+0x130/0x360 [ 7442.431122][ T253] netlink_unicast+0x449/0x710 [ 7442.431122][ T253] netlink_sendmsg+0x723/0xbe0 [ 7442.431122][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7442.431122][ T253] ___sys_sendmsg+0xee/0x170 [ 7442.431122][ T253] __sys_sendmsg+0xcd/0x170 [ 7442.431122][ T253] do_syscall_64+0xc6/0x1e0 [ 7442.431122][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7442.431122][ T253] [ 7442.433372][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7442.433372][ T253] netdev_get_by_index+0x5e/0x80 [ 7442.433372][ T253] fib6_nh_init+0x3d8/0x1580 [ 7442.433372][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7442.433372][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7442.433372][ T253] ipv6_add_addr+0x411/0x2000 [ 7442.433372][ T253] inet6_addr_add+0x30e/0xa40 [ 7442.433372][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7442.433372][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7442.433372][ T253] netlink_rcv_skb+0x130/0x360 [ 7442.433372][ T253] netlink_unicast+0x449/0x710 [ 7442.433372][ T253] netlink_sendmsg+0x723/0xbe0 [ 7442.433372][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7442.433372][ T253] ___sys_sendmsg+0xee/0x170 [ 7442.433372][ T253] __sys_sendmsg+0xcd/0x170 [ 7442.433372][ T253] do_syscall_64+0xc6/0x1e0 [ 7442.433372][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7442.433372][ T253] [ 7442.435616][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7442.435616][ T253] netdev_get_by_index+0x5e/0x80 [ 7442.435616][ T253] fib6_nh_init+0x3d8/0x1580 [ 7442.435616][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7442.435616][ T253] ip6_route_add+0x1c/0x140 [ 7442.435616][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7442.435616][ T253] addrconf_add_dev+0xe2/0x170 [ 7442.435616][ T253] inet6_addr_add+0x12f/0xa40 [ 7442.435616][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7442.435616][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7442.435616][ T253] netlink_rcv_skb+0x130/0x360 [ 7442.435616][ T253] netlink_unicast+0x449/0x710 [ 7442.435616][ T253] netlink_sendmsg+0x723/0xbe0 [ 7442.435616][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7442.435616][ T253] ___sys_sendmsg+0xee/0x170 [ 7442.435616][ T253] __sys_sendmsg+0xcd/0x170 [ 7442.435616][ T253] do_syscall_64+0xc6/0x1e0 [ 7442.435616][ T253] [ 7442.437807][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7442.437807][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7442.437807][ T253] ipv6_find_idev+0x102/0x170 [ 7442.437807][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7442.437807][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7442.437807][ T253] netlink_rcv_skb+0x130/0x360 [ 7442.437807][ T253] netlink_unicast+0x449/0x710 [ 7442.437807][ T253] netlink_sendmsg+0x723/0xbe0 [ 7442.437807][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7442.437807][ T253] ___sys_sendmsg+0xee/0x170 [ 7442.437807][ T253] __sys_sendmsg+0xcd/0x170 [ 7442.437807][ T253] do_syscall_64+0xc6/0x1e0 [ 7442.437807][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7442.437807][ T253] [ 7442.439524][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7442.439524][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7442.439524][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7442.439524][ T253] ipv6_find_idev+0x102/0x170 [ 7442.439524][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7442.439524][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7442.439524][ T253] netlink_rcv_skb+0x130/0x360 [ 7442.439524][ T253] netlink_unicast+0x449/0x710 [ 7442.439524][ T253] netlink_sendmsg+0x723/0xbe0 [ 7442.439524][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7442.439524][ T253] ___sys_sendmsg+0xee/0x170 [ 7442.439524][ T253] __sys_sendmsg+0xcd/0x170 [ 7442.439524][ T253] do_syscall_64+0xc6/0x1e0 [ 7442.439524][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7442.439524][ T253] [ 7452.642314][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7452.642793][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7452.642793][ T253] dst_init+0x84/0x4a0 [ 7452.642793][ T253] dst_alloc+0x97/0x150 [ 7452.642793][ T253] ip6_dst_alloc+0x23/0x90 [ 7452.642793][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7452.642793][ T253] ip6_pol_route+0x56f/0x840 [ 7452.642793][ T253] fib6_rule_lookup+0x334/0x630 [ 7452.642793][ T253] ip6_route_output_flags+0x259/0x480 [ 7452.642793][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7452.642793][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7452.642793][ T253] netlink_rcv_skb+0x130/0x360 [ 7452.642793][ T253] netlink_unicast+0x449/0x710 [ 7452.642793][ T253] netlink_sendmsg+0x723/0xbe0 [ 7452.642793][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7452.642793][ T253] ___sys_sendmsg+0xee/0x170 [ 7452.642793][ T253] __sys_sendmsg+0xcd/0x170 [ 7452.642793][ T253] do_syscall_64+0xc6/0x1e0 [ 7452.642793][ T253] [ 7452.645016][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7452.645016][ T253] netdev_get_by_index+0x5e/0x80 [ 7452.645016][ T253] fib6_nh_init+0x3d8/0x1580 [ 7452.645016][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7452.645016][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7452.645016][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7452.645016][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7452.645016][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7452.645016][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7452.645016][ T253] addrconf_dad_begin+0x310/0x670 [ 7452.645016][ T253] addrconf_dad_work+0x10b/0xab0 [ 7452.645016][ T253] process_one_work+0x84d/0x18a0 [ 7452.645016][ T253] worker_thread+0x587/0xd30 [ 7452.645016][ T253] kthread+0x28a/0x350 [ 7452.645016][ T253] ret_from_fork+0x31/0x70 [ 7452.645016][ T253] ret_from_fork_asm+0x1a/0x30 [ 7452.645016][ T253] [ 7452.647182][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7452.647182][ T253] netdev_get_by_index+0x5e/0x80 [ 7452.647182][ T253] fib6_nh_init+0x3d8/0x1580 [ 7452.647182][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7452.647182][ T253] ip6_route_add+0x1c/0x140 [ 7452.647182][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7452.647182][ T253] inet6_addr_add+0x4f8/0xa40 [ 7452.647182][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7452.647182][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7452.647182][ T253] netlink_rcv_skb+0x130/0x360 [ 7452.647182][ T253] netlink_unicast+0x449/0x710 [ 7452.647182][ T253] netlink_sendmsg+0x723/0xbe0 [ 7452.647182][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7452.647182][ T253] ___sys_sendmsg+0xee/0x170 [ 7452.647182][ T253] __sys_sendmsg+0xcd/0x170 [ 7452.647182][ T253] do_syscall_64+0xc6/0x1e0 [ 7452.647182][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7452.647182][ T253] [ 7452.649437][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7452.649437][ T253] netdev_get_by_index+0x5e/0x80 [ 7452.649437][ T253] fib6_nh_init+0x3d8/0x1580 [ 7452.649437][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7452.649437][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7452.649437][ T253] ipv6_add_addr+0x411/0x2000 [ 7452.649437][ T253] inet6_addr_add+0x30e/0xa40 [ 7452.649437][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7452.649437][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7452.649437][ T253] netlink_rcv_skb+0x130/0x360 [ 7452.649437][ T253] netlink_unicast+0x449/0x710 [ 7452.649437][ T253] netlink_sendmsg+0x723/0xbe0 [ 7452.649437][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7452.649437][ T253] ___sys_sendmsg+0xee/0x170 [ 7452.649437][ T253] __sys_sendmsg+0xcd/0x170 [ 7452.649437][ T253] do_syscall_64+0xc6/0x1e0 [ 7452.649437][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7452.649437][ T253] [ 7452.651696][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7452.651696][ T253] netdev_get_by_index+0x5e/0x80 [ 7452.651696][ T253] fib6_nh_init+0x3d8/0x1580 [ 7452.651696][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7452.651696][ T253] ip6_route_add+0x1c/0x140 [ 7452.651696][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7452.651696][ T253] addrconf_add_dev+0xe2/0x170 [ 7452.651696][ T253] inet6_addr_add+0x12f/0xa40 [ 7452.651696][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7452.651696][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7452.651696][ T253] netlink_rcv_skb+0x130/0x360 [ 7452.651696][ T253] netlink_unicast+0x449/0x710 [ 7452.651696][ T253] netlink_sendmsg+0x723/0xbe0 [ 7452.651696][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7452.651696][ T253] ___sys_sendmsg+0xee/0x170 [ 7452.651696][ T253] __sys_sendmsg+0xcd/0x170 [ 7452.651696][ T253] do_syscall_64+0xc6/0x1e0 [ 7452.651696][ T253] [ 7452.653959][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7452.653959][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7452.653959][ T253] ipv6_find_idev+0x102/0x170 [ 7452.653959][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7452.653959][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7452.653959][ T253] netlink_rcv_skb+0x130/0x360 [ 7452.653959][ T253] netlink_unicast+0x449/0x710 [ 7452.653959][ T253] netlink_sendmsg+0x723/0xbe0 [ 7452.653959][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7452.653959][ T253] ___sys_sendmsg+0xee/0x170 [ 7452.653959][ T253] __sys_sendmsg+0xcd/0x170 [ 7452.653959][ T253] do_syscall_64+0xc6/0x1e0 [ 7452.653959][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7452.653959][ T253] [ 7452.655694][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7452.655694][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7452.655694][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7452.655694][ T253] ipv6_find_idev+0x102/0x170 [ 7452.655694][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7452.655694][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7452.655694][ T253] netlink_rcv_skb+0x130/0x360 [ 7452.655694][ T253] netlink_unicast+0x449/0x710 [ 7452.655694][ T253] netlink_sendmsg+0x723/0xbe0 [ 7452.655694][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7452.655694][ T253] ___sys_sendmsg+0xee/0x170 [ 7452.655694][ T253] __sys_sendmsg+0xcd/0x170 [ 7452.655694][ T253] do_syscall_64+0xc6/0x1e0 [ 7452.655694][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7452.655694][ T253] [ 7462.898361][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7462.898897][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7462.898897][ T253] dst_init+0x84/0x4a0 [ 7462.898897][ T253] dst_alloc+0x97/0x150 [ 7462.898897][ T253] ip6_dst_alloc+0x23/0x90 [ 7462.898897][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7462.898897][ T253] ip6_pol_route+0x56f/0x840 [ 7462.898897][ T253] fib6_rule_lookup+0x334/0x630 [ 7462.898897][ T253] ip6_route_output_flags+0x259/0x480 [ 7462.898897][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7462.898897][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7462.898897][ T253] netlink_rcv_skb+0x130/0x360 [ 7462.898897][ T253] netlink_unicast+0x449/0x710 [ 7462.898897][ T253] netlink_sendmsg+0x723/0xbe0 [ 7462.898897][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7462.898897][ T253] ___sys_sendmsg+0xee/0x170 [ 7462.898897][ T253] __sys_sendmsg+0xcd/0x170 [ 7462.898897][ T253] do_syscall_64+0xc6/0x1e0 [ 7462.898897][ T253] [ 7462.901106][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7462.901106][ T253] netdev_get_by_index+0x5e/0x80 [ 7462.901106][ T253] fib6_nh_init+0x3d8/0x1580 [ 7462.901106][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7462.901106][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7462.901106][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7462.901106][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7462.901106][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7462.901106][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7462.901106][ T253] addrconf_dad_begin+0x310/0x670 [ 7462.901106][ T253] addrconf_dad_work+0x10b/0xab0 [ 7462.901106][ T253] process_one_work+0x84d/0x18a0 [ 7462.901106][ T253] worker_thread+0x587/0xd30 [ 7462.901106][ T253] kthread+0x28a/0x350 [ 7462.901106][ T253] ret_from_fork+0x31/0x70 [ 7462.901106][ T253] ret_from_fork_asm+0x1a/0x30 [ 7462.901106][ T253] [ 7462.903278][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7462.903278][ T253] netdev_get_by_index+0x5e/0x80 [ 7462.903278][ T253] fib6_nh_init+0x3d8/0x1580 [ 7462.903278][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7462.903278][ T253] ip6_route_add+0x1c/0x140 [ 7462.903278][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7462.903278][ T253] inet6_addr_add+0x4f8/0xa40 [ 7462.903278][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7462.903278][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7462.903278][ T253] netlink_rcv_skb+0x130/0x360 [ 7462.903278][ T253] netlink_unicast+0x449/0x710 [ 7462.903278][ T253] netlink_sendmsg+0x723/0xbe0 [ 7462.903278][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7462.903278][ T253] ___sys_sendmsg+0xee/0x170 [ 7462.903278][ T253] __sys_sendmsg+0xcd/0x170 [ 7462.903278][ T253] do_syscall_64+0xc6/0x1e0 [ 7462.903278][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7462.903278][ T253] [ 7462.905549][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7462.905549][ T253] netdev_get_by_index+0x5e/0x80 [ 7462.905549][ T253] fib6_nh_init+0x3d8/0x1580 [ 7462.905549][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7462.905549][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7462.905549][ T253] ipv6_add_addr+0x411/0x2000 [ 7462.905549][ T253] inet6_addr_add+0x30e/0xa40 [ 7462.905549][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7462.905549][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7462.905549][ T253] netlink_rcv_skb+0x130/0x360 [ 7462.905549][ T253] netlink_unicast+0x449/0x710 [ 7462.905549][ T253] netlink_sendmsg+0x723/0xbe0 [ 7462.905549][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7462.905549][ T253] ___sys_sendmsg+0xee/0x170 [ 7462.905549][ T253] __sys_sendmsg+0xcd/0x170 [ 7462.905549][ T253] do_syscall_64+0xc6/0x1e0 [ 7462.905549][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7462.905549][ T253] [ 7462.907813][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7462.907813][ T253] netdev_get_by_index+0x5e/0x80 [ 7462.907813][ T253] fib6_nh_init+0x3d8/0x1580 [ 7462.907813][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7462.907813][ T253] ip6_route_add+0x1c/0x140 [ 7462.907813][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7462.907813][ T253] addrconf_add_dev+0xe2/0x170 [ 7462.907813][ T253] inet6_addr_add+0x12f/0xa40 [ 7462.907813][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7462.907813][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7462.907813][ T253] netlink_rcv_skb+0x130/0x360 [ 7462.907813][ T253] netlink_unicast+0x449/0x710 [ 7462.907813][ T253] netlink_sendmsg+0x723/0xbe0 [ 7462.907813][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7462.907813][ T253] ___sys_sendmsg+0xee/0x170 [ 7462.907813][ T253] __sys_sendmsg+0xcd/0x170 [ 7462.907813][ T253] do_syscall_64+0xc6/0x1e0 [ 7462.907813][ T253] [ 7462.910040][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7462.910040][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7462.910040][ T253] ipv6_find_idev+0x102/0x170 [ 7462.910040][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7462.910040][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7462.910040][ T253] netlink_rcv_skb+0x130/0x360 [ 7462.910040][ T253] netlink_unicast+0x449/0x710 [ 7462.910040][ T253] netlink_sendmsg+0x723/0xbe0 [ 7462.910040][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7462.910040][ T253] ___sys_sendmsg+0xee/0x170 [ 7462.910040][ T253] __sys_sendmsg+0xcd/0x170 [ 7462.910040][ T253] do_syscall_64+0xc6/0x1e0 [ 7462.910040][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7462.910040][ T253] [ 7462.911781][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7462.911781][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7462.911781][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7462.911781][ T253] ipv6_find_idev+0x102/0x170 [ 7462.911781][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7462.911781][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7462.911781][ T253] netlink_rcv_skb+0x130/0x360 [ 7462.911781][ T253] netlink_unicast+0x449/0x710 [ 7462.911781][ T253] netlink_sendmsg+0x723/0xbe0 [ 7462.911781][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7462.911781][ T253] ___sys_sendmsg+0xee/0x170 [ 7462.911781][ T253] __sys_sendmsg+0xcd/0x170 [ 7462.911781][ T253] do_syscall_64+0xc6/0x1e0 [ 7462.911781][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7462.911781][ T253] [ 7473.154306][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7473.154738][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7473.154738][ T253] dst_init+0x84/0x4a0 [ 7473.154738][ T253] dst_alloc+0x97/0x150 [ 7473.154738][ T253] ip6_dst_alloc+0x23/0x90 [ 7473.154738][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7473.154738][ T253] ip6_pol_route+0x56f/0x840 [ 7473.154738][ T253] fib6_rule_lookup+0x334/0x630 [ 7473.154738][ T253] ip6_route_output_flags+0x259/0x480 [ 7473.154738][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7473.154738][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7473.154738][ T253] netlink_rcv_skb+0x130/0x360 [ 7473.154738][ T253] netlink_unicast+0x449/0x710 [ 7473.154738][ T253] netlink_sendmsg+0x723/0xbe0 [ 7473.154738][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7473.154738][ T253] ___sys_sendmsg+0xee/0x170 [ 7473.154738][ T253] __sys_sendmsg+0xcd/0x170 [ 7473.154738][ T253] do_syscall_64+0xc6/0x1e0 [ 7473.154738][ T253] [ 7473.156975][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7473.156975][ T253] netdev_get_by_index+0x5e/0x80 [ 7473.156975][ T253] fib6_nh_init+0x3d8/0x1580 [ 7473.156975][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7473.156975][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7473.156975][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7473.156975][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7473.156975][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7473.156975][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7473.156975][ T253] addrconf_dad_begin+0x310/0x670 [ 7473.156975][ T253] addrconf_dad_work+0x10b/0xab0 [ 7473.156975][ T253] process_one_work+0x84d/0x18a0 [ 7473.156975][ T253] worker_thread+0x587/0xd30 [ 7473.156975][ T253] kthread+0x28a/0x350 [ 7473.156975][ T253] ret_from_fork+0x31/0x70 [ 7473.156975][ T253] ret_from_fork_asm+0x1a/0x30 [ 7473.156975][ T253] [ 7473.159137][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7473.159137][ T253] netdev_get_by_index+0x5e/0x80 [ 7473.159137][ T253] fib6_nh_init+0x3d8/0x1580 [ 7473.159137][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7473.159137][ T253] ip6_route_add+0x1c/0x140 [ 7473.159137][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7473.159137][ T253] inet6_addr_add+0x4f8/0xa40 [ 7473.159137][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7473.159137][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7473.159137][ T253] netlink_rcv_skb+0x130/0x360 [ 7473.159137][ T253] netlink_unicast+0x449/0x710 [ 7473.159137][ T253] netlink_sendmsg+0x723/0xbe0 [ 7473.159137][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7473.159137][ T253] ___sys_sendmsg+0xee/0x170 [ 7473.159137][ T253] __sys_sendmsg+0xcd/0x170 [ 7473.159137][ T253] do_syscall_64+0xc6/0x1e0 [ 7473.159137][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7473.159137][ T253] [ 7473.161392][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7473.161392][ T253] netdev_get_by_index+0x5e/0x80 [ 7473.161392][ T253] fib6_nh_init+0x3d8/0x1580 [ 7473.161392][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7473.161392][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7473.161392][ T253] ipv6_add_addr+0x411/0x2000 [ 7473.161392][ T253] inet6_addr_add+0x30e/0xa40 [ 7473.161392][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7473.161392][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7473.161392][ T253] netlink_rcv_skb+0x130/0x360 [ 7473.161392][ T253] netlink_unicast+0x449/0x710 [ 7473.161392][ T253] netlink_sendmsg+0x723/0xbe0 [ 7473.161392][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7473.161392][ T253] ___sys_sendmsg+0xee/0x170 [ 7473.161392][ T253] __sys_sendmsg+0xcd/0x170 [ 7473.161392][ T253] do_syscall_64+0xc6/0x1e0 [ 7473.161392][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7473.161392][ T253] [ 7473.163645][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7473.163645][ T253] netdev_get_by_index+0x5e/0x80 [ 7473.163645][ T253] fib6_nh_init+0x3d8/0x1580 [ 7473.163645][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7473.163645][ T253] ip6_route_add+0x1c/0x140 [ 7473.163645][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7473.163645][ T253] addrconf_add_dev+0xe2/0x170 [ 7473.163645][ T253] inet6_addr_add+0x12f/0xa40 [ 7473.163645][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7473.163645][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7473.163645][ T253] netlink_rcv_skb+0x130/0x360 [ 7473.163645][ T253] netlink_unicast+0x449/0x710 [ 7473.163645][ T253] netlink_sendmsg+0x723/0xbe0 [ 7473.163645][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7473.163645][ T253] ___sys_sendmsg+0xee/0x170 [ 7473.163645][ T253] __sys_sendmsg+0xcd/0x170 [ 7473.163645][ T253] do_syscall_64+0xc6/0x1e0 [ 7473.163645][ T253] [ 7473.165872][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7473.165872][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7473.165872][ T253] ipv6_find_idev+0x102/0x170 [ 7473.165872][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7473.165872][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7473.165872][ T253] netlink_rcv_skb+0x130/0x360 [ 7473.165872][ T253] netlink_unicast+0x449/0x710 [ 7473.165872][ T253] netlink_sendmsg+0x723/0xbe0 [ 7473.165872][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7473.165872][ T253] ___sys_sendmsg+0xee/0x170 [ 7473.165872][ T253] __sys_sendmsg+0xcd/0x170 [ 7473.165872][ T253] do_syscall_64+0xc6/0x1e0 [ 7473.165872][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7473.165872][ T253] [ 7473.167618][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7473.167618][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7473.167618][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7473.167618][ T253] ipv6_find_idev+0x102/0x170 [ 7473.167618][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7473.167618][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7473.167618][ T253] netlink_rcv_skb+0x130/0x360 [ 7473.167618][ T253] netlink_unicast+0x449/0x710 [ 7473.167618][ T253] netlink_sendmsg+0x723/0xbe0 [ 7473.167618][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7473.167618][ T253] ___sys_sendmsg+0xee/0x170 [ 7473.167618][ T253] __sys_sendmsg+0xcd/0x170 [ 7473.167618][ T253] do_syscall_64+0xc6/0x1e0 [ 7473.167618][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7473.167618][ T253] [ 7483.410318][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7483.410850][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7483.410850][ T253] dst_init+0x84/0x4a0 [ 7483.410850][ T253] dst_alloc+0x97/0x150 [ 7483.410850][ T253] ip6_dst_alloc+0x23/0x90 [ 7483.410850][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7483.410850][ T253] ip6_pol_route+0x56f/0x840 [ 7483.410850][ T253] fib6_rule_lookup+0x334/0x630 [ 7483.410850][ T253] ip6_route_output_flags+0x259/0x480 [ 7483.410850][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7483.410850][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7483.410850][ T253] netlink_rcv_skb+0x130/0x360 [ 7483.410850][ T253] netlink_unicast+0x449/0x710 [ 7483.410850][ T253] netlink_sendmsg+0x723/0xbe0 [ 7483.410850][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7483.410850][ T253] ___sys_sendmsg+0xee/0x170 [ 7483.410850][ T253] __sys_sendmsg+0xcd/0x170 [ 7483.410850][ T253] do_syscall_64+0xc6/0x1e0 [ 7483.410850][ T253] [ 7483.413072][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7483.413072][ T253] netdev_get_by_index+0x5e/0x80 [ 7483.413072][ T253] fib6_nh_init+0x3d8/0x1580 [ 7483.413072][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7483.413072][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7483.413072][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7483.413072][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7483.413072][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7483.413072][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7483.413072][ T253] addrconf_dad_begin+0x310/0x670 [ 7483.413072][ T253] addrconf_dad_work+0x10b/0xab0 [ 7483.413072][ T253] process_one_work+0x84d/0x18a0 [ 7483.413072][ T253] worker_thread+0x587/0xd30 [ 7483.413072][ T253] kthread+0x28a/0x350 [ 7483.413072][ T253] ret_from_fork+0x31/0x70 [ 7483.413072][ T253] ret_from_fork_asm+0x1a/0x30 [ 7483.413072][ T253] [ 7483.415246][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7483.415246][ T253] netdev_get_by_index+0x5e/0x80 [ 7483.415246][ T253] fib6_nh_init+0x3d8/0x1580 [ 7483.415246][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7483.415246][ T253] ip6_route_add+0x1c/0x140 [ 7483.415246][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7483.415246][ T253] inet6_addr_add+0x4f8/0xa40 [ 7483.415246][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7483.415246][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7483.415246][ T253] netlink_rcv_skb+0x130/0x360 [ 7483.415246][ T253] netlink_unicast+0x449/0x710 [ 7483.415246][ T253] netlink_sendmsg+0x723/0xbe0 [ 7483.415246][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7483.415246][ T253] ___sys_sendmsg+0xee/0x170 [ 7483.415246][ T253] __sys_sendmsg+0xcd/0x170 [ 7483.415246][ T253] do_syscall_64+0xc6/0x1e0 [ 7483.415246][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7483.415246][ T253] [ 7483.417510][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7483.417510][ T253] netdev_get_by_index+0x5e/0x80 [ 7483.417510][ T253] fib6_nh_init+0x3d8/0x1580 [ 7483.417510][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7483.417510][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7483.417510][ T253] ipv6_add_addr+0x411/0x2000 [ 7483.417510][ T253] inet6_addr_add+0x30e/0xa40 [ 7483.417510][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7483.417510][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7483.417510][ T253] netlink_rcv_skb+0x130/0x360 [ 7483.417510][ T253] netlink_unicast+0x449/0x710 [ 7483.417510][ T253] netlink_sendmsg+0x723/0xbe0 [ 7483.417510][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7483.417510][ T253] ___sys_sendmsg+0xee/0x170 [ 7483.417510][ T253] __sys_sendmsg+0xcd/0x170 [ 7483.417510][ T253] do_syscall_64+0xc6/0x1e0 [ 7483.417510][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7483.417510][ T253] [ 7483.419803][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7483.419803][ T253] netdev_get_by_index+0x5e/0x80 [ 7483.419803][ T253] fib6_nh_init+0x3d8/0x1580 [ 7483.419803][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7483.419803][ T253] ip6_route_add+0x1c/0x140 [ 7483.419803][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7483.419803][ T253] addrconf_add_dev+0xe2/0x170 [ 7483.419803][ T253] inet6_addr_add+0x12f/0xa40 [ 7483.419803][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7483.419803][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7483.419803][ T253] netlink_rcv_skb+0x130/0x360 [ 7483.419803][ T253] netlink_unicast+0x449/0x710 [ 7483.419803][ T253] netlink_sendmsg+0x723/0xbe0 [ 7483.419803][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7483.419803][ T253] ___sys_sendmsg+0xee/0x170 [ 7483.419803][ T253] __sys_sendmsg+0xcd/0x170 [ 7483.419803][ T253] do_syscall_64+0xc6/0x1e0 [ 7483.419803][ T253] [ 7483.422022][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7483.422022][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7483.422022][ T253] ipv6_find_idev+0x102/0x170 [ 7483.422022][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7483.422022][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7483.422022][ T253] netlink_rcv_skb+0x130/0x360 [ 7483.422022][ T253] netlink_unicast+0x449/0x710 [ 7483.422022][ T253] netlink_sendmsg+0x723/0xbe0 [ 7483.422022][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7483.422022][ T253] ___sys_sendmsg+0xee/0x170 [ 7483.422022][ T253] __sys_sendmsg+0xcd/0x170 [ 7483.422022][ T253] do_syscall_64+0xc6/0x1e0 [ 7483.422022][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7483.422022][ T253] [ 7483.423773][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7483.423773][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7483.423773][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7483.423773][ T253] ipv6_find_idev+0x102/0x170 [ 7483.423773][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7483.423773][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7483.423773][ T253] netlink_rcv_skb+0x130/0x360 [ 7483.423773][ T253] netlink_unicast+0x449/0x710 [ 7483.423773][ T253] netlink_sendmsg+0x723/0xbe0 [ 7483.423773][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7483.423773][ T253] ___sys_sendmsg+0xee/0x170 [ 7483.423773][ T253] __sys_sendmsg+0xcd/0x170 [ 7483.423773][ T253] do_syscall_64+0xc6/0x1e0 [ 7483.423773][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7483.423773][ T253] [ 7493.666238][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7493.666735][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7493.666735][ T253] dst_init+0x84/0x4a0 [ 7493.666735][ T253] dst_alloc+0x97/0x150 [ 7493.666735][ T253] ip6_dst_alloc+0x23/0x90 [ 7493.666735][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7493.666735][ T253] ip6_pol_route+0x56f/0x840 [ 7493.666735][ T253] fib6_rule_lookup+0x334/0x630 [ 7493.666735][ T253] ip6_route_output_flags+0x259/0x480 [ 7493.666735][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7493.666735][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7493.666735][ T253] netlink_rcv_skb+0x130/0x360 [ 7493.666735][ T253] netlink_unicast+0x449/0x710 [ 7493.666735][ T253] netlink_sendmsg+0x723/0xbe0 [ 7493.666735][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7493.666735][ T253] ___sys_sendmsg+0xee/0x170 [ 7493.666735][ T253] __sys_sendmsg+0xcd/0x170 [ 7493.666735][ T253] do_syscall_64+0xc6/0x1e0 [ 7493.666735][ T253] [ 7493.668962][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7493.668962][ T253] netdev_get_by_index+0x5e/0x80 [ 7493.668962][ T253] fib6_nh_init+0x3d8/0x1580 [ 7493.668962][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7493.668962][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7493.668962][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7493.668962][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7493.668962][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7493.668962][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7493.668962][ T253] addrconf_dad_begin+0x310/0x670 [ 7493.668962][ T253] addrconf_dad_work+0x10b/0xab0 [ 7493.668962][ T253] process_one_work+0x84d/0x18a0 [ 7493.668962][ T253] worker_thread+0x587/0xd30 [ 7493.668962][ T253] kthread+0x28a/0x350 [ 7493.668962][ T253] ret_from_fork+0x31/0x70 [ 7493.668962][ T253] ret_from_fork_asm+0x1a/0x30 [ 7493.668962][ T253] [ 7493.671148][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7493.671148][ T253] netdev_get_by_index+0x5e/0x80 [ 7493.671148][ T253] fib6_nh_init+0x3d8/0x1580 [ 7493.671148][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7493.671148][ T253] ip6_route_add+0x1c/0x140 [ 7493.671148][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7493.671148][ T253] inet6_addr_add+0x4f8/0xa40 [ 7493.671148][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7493.671148][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7493.671148][ T253] netlink_rcv_skb+0x130/0x360 [ 7493.671148][ T253] netlink_unicast+0x449/0x710 [ 7493.671148][ T253] netlink_sendmsg+0x723/0xbe0 [ 7493.671148][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7493.671148][ T253] ___sys_sendmsg+0xee/0x170 [ 7493.671148][ T253] __sys_sendmsg+0xcd/0x170 [ 7493.671148][ T253] do_syscall_64+0xc6/0x1e0 [ 7493.671148][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7493.671148][ T253] [ 7493.673403][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7493.673403][ T253] netdev_get_by_index+0x5e/0x80 [ 7493.673403][ T253] fib6_nh_init+0x3d8/0x1580 [ 7493.673403][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7493.673403][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7493.673403][ T253] ipv6_add_addr+0x411/0x2000 [ 7493.673403][ T253] inet6_addr_add+0x30e/0xa40 [ 7493.673403][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7493.673403][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7493.673403][ T253] netlink_rcv_skb+0x130/0x360 [ 7493.673403][ T253] netlink_unicast+0x449/0x710 [ 7493.673403][ T253] netlink_sendmsg+0x723/0xbe0 [ 7493.673403][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7493.673403][ T253] ___sys_sendmsg+0xee/0x170 [ 7493.673403][ T253] __sys_sendmsg+0xcd/0x170 [ 7493.673403][ T253] do_syscall_64+0xc6/0x1e0 [ 7493.673403][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7493.673403][ T253] [ 7493.675673][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7493.675673][ T253] netdev_get_by_index+0x5e/0x80 [ 7493.675673][ T253] fib6_nh_init+0x3d8/0x1580 [ 7493.675673][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7493.675673][ T253] ip6_route_add+0x1c/0x140 [ 7493.675673][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7493.675673][ T253] addrconf_add_dev+0xe2/0x170 [ 7493.675673][ T253] inet6_addr_add+0x12f/0xa40 [ 7493.675673][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7493.675673][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7493.675673][ T253] netlink_rcv_skb+0x130/0x360 [ 7493.675673][ T253] netlink_unicast+0x449/0x710 [ 7493.675673][ T253] netlink_sendmsg+0x723/0xbe0 [ 7493.675673][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7493.675673][ T253] ___sys_sendmsg+0xee/0x170 [ 7493.675673][ T253] __sys_sendmsg+0xcd/0x170 [ 7493.675673][ T253] do_syscall_64+0xc6/0x1e0 [ 7493.675673][ T253] [ 7493.677885][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7493.677885][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7493.677885][ T253] ipv6_find_idev+0x102/0x170 [ 7493.677885][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7493.677885][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7493.677885][ T253] netlink_rcv_skb+0x130/0x360 [ 7493.677885][ T253] netlink_unicast+0x449/0x710 [ 7493.677885][ T253] netlink_sendmsg+0x723/0xbe0 [ 7493.677885][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7493.677885][ T253] ___sys_sendmsg+0xee/0x170 [ 7493.677885][ T253] __sys_sendmsg+0xcd/0x170 [ 7493.677885][ T253] do_syscall_64+0xc6/0x1e0 [ 7493.677885][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7493.677885][ T253] [ 7493.679610][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7493.679610][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7493.679610][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7493.679610][ T253] ipv6_find_idev+0x102/0x170 [ 7493.679610][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7493.679610][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7493.679610][ T253] netlink_rcv_skb+0x130/0x360 [ 7493.679610][ T253] netlink_unicast+0x449/0x710 [ 7493.679610][ T253] netlink_sendmsg+0x723/0xbe0 [ 7493.679610][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7493.679610][ T253] ___sys_sendmsg+0xee/0x170 [ 7493.679610][ T253] __sys_sendmsg+0xcd/0x170 [ 7493.679610][ T253] do_syscall_64+0xc6/0x1e0 [ 7493.679610][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7493.679610][ T253] [ 7503.922300][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7503.922805][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7503.922805][ T253] dst_init+0x84/0x4a0 [ 7503.922805][ T253] dst_alloc+0x97/0x150 [ 7503.922805][ T253] ip6_dst_alloc+0x23/0x90 [ 7503.922805][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7503.922805][ T253] ip6_pol_route+0x56f/0x840 [ 7503.922805][ T253] fib6_rule_lookup+0x334/0x630 [ 7503.922805][ T253] ip6_route_output_flags+0x259/0x480 [ 7503.922805][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7503.922805][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7503.922805][ T253] netlink_rcv_skb+0x130/0x360 [ 7503.922805][ T253] netlink_unicast+0x449/0x710 [ 7503.922805][ T253] netlink_sendmsg+0x723/0xbe0 [ 7503.922805][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7503.922805][ T253] ___sys_sendmsg+0xee/0x170 [ 7503.922805][ T253] __sys_sendmsg+0xcd/0x170 [ 7503.922805][ T253] do_syscall_64+0xc6/0x1e0 [ 7503.922805][ T253] [ 7503.925029][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7503.925029][ T253] netdev_get_by_index+0x5e/0x80 [ 7503.925029][ T253] fib6_nh_init+0x3d8/0x1580 [ 7503.925029][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7503.925029][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7503.925029][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7503.925029][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7503.925029][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7503.925029][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7503.925029][ T253] addrconf_dad_begin+0x310/0x670 [ 7503.925029][ T253] addrconf_dad_work+0x10b/0xab0 [ 7503.925029][ T253] process_one_work+0x84d/0x18a0 [ 7503.925029][ T253] worker_thread+0x587/0xd30 [ 7503.925029][ T253] kthread+0x28a/0x350 [ 7503.925029][ T253] ret_from_fork+0x31/0x70 [ 7503.925029][ T253] ret_from_fork_asm+0x1a/0x30 [ 7503.925029][ T253] [ 7503.927175][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7503.927175][ T253] netdev_get_by_index+0x5e/0x80 [ 7503.927175][ T253] fib6_nh_init+0x3d8/0x1580 [ 7503.927175][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7503.927175][ T253] ip6_route_add+0x1c/0x140 [ 7503.927175][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7503.927175][ T253] inet6_addr_add+0x4f8/0xa40 [ 7503.927175][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7503.927175][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7503.927175][ T253] netlink_rcv_skb+0x130/0x360 [ 7503.927175][ T253] netlink_unicast+0x449/0x710 [ 7503.927175][ T253] netlink_sendmsg+0x723/0xbe0 [ 7503.927175][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7503.927175][ T253] ___sys_sendmsg+0xee/0x170 [ 7503.927175][ T253] __sys_sendmsg+0xcd/0x170 [ 7503.927175][ T253] do_syscall_64+0xc6/0x1e0 [ 7503.927175][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7503.927175][ T253] [ 7503.929473][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7503.929473][ T253] netdev_get_by_index+0x5e/0x80 [ 7503.929473][ T253] fib6_nh_init+0x3d8/0x1580 [ 7503.929473][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7503.929473][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7503.929473][ T253] ipv6_add_addr+0x411/0x2000 [ 7503.929473][ T253] inet6_addr_add+0x30e/0xa40 [ 7503.929473][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7503.929473][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7503.929473][ T253] netlink_rcv_skb+0x130/0x360 [ 7503.929473][ T253] netlink_unicast+0x449/0x710 [ 7503.929473][ T253] netlink_sendmsg+0x723/0xbe0 [ 7503.929473][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7503.929473][ T253] ___sys_sendmsg+0xee/0x170 [ 7503.929473][ T253] __sys_sendmsg+0xcd/0x170 [ 7503.929473][ T253] do_syscall_64+0xc6/0x1e0 [ 7503.929473][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7503.929473][ T253] [ 7503.931750][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7503.931750][ T253] netdev_get_by_index+0x5e/0x80 [ 7503.931750][ T253] fib6_nh_init+0x3d8/0x1580 [ 7503.931750][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7503.931750][ T253] ip6_route_add+0x1c/0x140 [ 7503.931750][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7503.931750][ T253] addrconf_add_dev+0xe2/0x170 [ 7503.931750][ T253] inet6_addr_add+0x12f/0xa40 [ 7503.931750][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7503.931750][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7503.931750][ T253] netlink_rcv_skb+0x130/0x360 [ 7503.931750][ T253] netlink_unicast+0x449/0x710 [ 7503.931750][ T253] netlink_sendmsg+0x723/0xbe0 [ 7503.931750][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7503.931750][ T253] ___sys_sendmsg+0xee/0x170 [ 7503.931750][ T253] __sys_sendmsg+0xcd/0x170 [ 7503.931750][ T253] do_syscall_64+0xc6/0x1e0 [ 7503.931750][ T253] [ 7503.933964][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7503.933964][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7503.933964][ T253] ipv6_find_idev+0x102/0x170 [ 7503.933964][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7503.933964][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7503.933964][ T253] netlink_rcv_skb+0x130/0x360 [ 7503.933964][ T253] netlink_unicast+0x449/0x710 [ 7503.933964][ T253] netlink_sendmsg+0x723/0xbe0 [ 7503.933964][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7503.933964][ T253] ___sys_sendmsg+0xee/0x170 [ 7503.933964][ T253] __sys_sendmsg+0xcd/0x170 [ 7503.933964][ T253] do_syscall_64+0xc6/0x1e0 [ 7503.933964][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7503.933964][ T253] [ 7503.935728][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7503.935728][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7503.935728][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7503.935728][ T253] ipv6_find_idev+0x102/0x170 [ 7503.935728][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7503.935728][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7503.935728][ T253] netlink_rcv_skb+0x130/0x360 [ 7503.935728][ T253] netlink_unicast+0x449/0x710 [ 7503.935728][ T253] netlink_sendmsg+0x723/0xbe0 [ 7503.935728][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7503.935728][ T253] ___sys_sendmsg+0xee/0x170 [ 7503.935728][ T253] __sys_sendmsg+0xcd/0x170 [ 7503.935728][ T253] do_syscall_64+0xc6/0x1e0 [ 7503.935728][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7503.935728][ T253] [ 7514.186331][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7514.186813][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7514.186813][ T253] dst_init+0x84/0x4a0 [ 7514.186813][ T253] dst_alloc+0x97/0x150 [ 7514.186813][ T253] ip6_dst_alloc+0x23/0x90 [ 7514.186813][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7514.186813][ T253] ip6_pol_route+0x56f/0x840 [ 7514.186813][ T253] fib6_rule_lookup+0x334/0x630 [ 7514.186813][ T253] ip6_route_output_flags+0x259/0x480 [ 7514.186813][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7514.186813][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7514.186813][ T253] netlink_rcv_skb+0x130/0x360 [ 7514.186813][ T253] netlink_unicast+0x449/0x710 [ 7514.186813][ T253] netlink_sendmsg+0x723/0xbe0 [ 7514.186813][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7514.186813][ T253] ___sys_sendmsg+0xee/0x170 [ 7514.186813][ T253] __sys_sendmsg+0xcd/0x170 [ 7514.186813][ T253] do_syscall_64+0xc6/0x1e0 [ 7514.186813][ T253] [ 7514.189010][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7514.189010][ T253] netdev_get_by_index+0x5e/0x80 [ 7514.189010][ T253] fib6_nh_init+0x3d8/0x1580 [ 7514.189010][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7514.189010][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7514.189010][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7514.189010][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7514.189010][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7514.189010][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7514.189010][ T253] addrconf_dad_begin+0x310/0x670 [ 7514.189010][ T253] addrconf_dad_work+0x10b/0xab0 [ 7514.189010][ T253] process_one_work+0x84d/0x18a0 [ 7514.189010][ T253] worker_thread+0x587/0xd30 [ 7514.189010][ T253] kthread+0x28a/0x350 [ 7514.189010][ T253] ret_from_fork+0x31/0x70 [ 7514.189010][ T253] ret_from_fork_asm+0x1a/0x30 [ 7514.189010][ T253] [ 7514.191152][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7514.191152][ T253] netdev_get_by_index+0x5e/0x80 [ 7514.191152][ T253] fib6_nh_init+0x3d8/0x1580 [ 7514.191152][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7514.191152][ T253] ip6_route_add+0x1c/0x140 [ 7514.191152][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7514.191152][ T253] inet6_addr_add+0x4f8/0xa40 [ 7514.191152][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7514.191152][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7514.191152][ T253] netlink_rcv_skb+0x130/0x360 [ 7514.191152][ T253] netlink_unicast+0x449/0x710 [ 7514.191152][ T253] netlink_sendmsg+0x723/0xbe0 [ 7514.191152][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7514.191152][ T253] ___sys_sendmsg+0xee/0x170 [ 7514.191152][ T253] __sys_sendmsg+0xcd/0x170 [ 7514.191152][ T253] do_syscall_64+0xc6/0x1e0 [ 7514.191152][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7514.191152][ T253] [ 7514.193393][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7514.193393][ T253] netdev_get_by_index+0x5e/0x80 [ 7514.193393][ T253] fib6_nh_init+0x3d8/0x1580 [ 7514.193393][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7514.193393][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7514.193393][ T253] ipv6_add_addr+0x411/0x2000 [ 7514.193393][ T253] inet6_addr_add+0x30e/0xa40 [ 7514.193393][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7514.193393][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7514.193393][ T253] netlink_rcv_skb+0x130/0x360 [ 7514.193393][ T253] netlink_unicast+0x449/0x710 [ 7514.193393][ T253] netlink_sendmsg+0x723/0xbe0 [ 7514.193393][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7514.193393][ T253] ___sys_sendmsg+0xee/0x170 [ 7514.193393][ T253] __sys_sendmsg+0xcd/0x170 [ 7514.193393][ T253] do_syscall_64+0xc6/0x1e0 [ 7514.193393][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7514.193393][ T253] [ 7514.195636][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7514.195636][ T253] netdev_get_by_index+0x5e/0x80 [ 7514.195636][ T253] fib6_nh_init+0x3d8/0x1580 [ 7514.195636][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7514.195636][ T253] ip6_route_add+0x1c/0x140 [ 7514.195636][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7514.195636][ T253] addrconf_add_dev+0xe2/0x170 [ 7514.195636][ T253] inet6_addr_add+0x12f/0xa40 [ 7514.195636][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7514.195636][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7514.195636][ T253] netlink_rcv_skb+0x130/0x360 [ 7514.195636][ T253] netlink_unicast+0x449/0x710 [ 7514.195636][ T253] netlink_sendmsg+0x723/0xbe0 [ 7514.195636][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7514.195636][ T253] ___sys_sendmsg+0xee/0x170 [ 7514.195636][ T253] __sys_sendmsg+0xcd/0x170 [ 7514.195636][ T253] do_syscall_64+0xc6/0x1e0 [ 7514.195636][ T253] [ 7514.197837][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7514.197837][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7514.197837][ T253] ipv6_find_idev+0x102/0x170 [ 7514.197837][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7514.197837][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7514.197837][ T253] netlink_rcv_skb+0x130/0x360 [ 7514.197837][ T253] netlink_unicast+0x449/0x710 [ 7514.197837][ T253] netlink_sendmsg+0x723/0xbe0 [ 7514.197837][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7514.197837][ T253] ___sys_sendmsg+0xee/0x170 [ 7514.197837][ T253] __sys_sendmsg+0xcd/0x170 [ 7514.197837][ T253] do_syscall_64+0xc6/0x1e0 [ 7514.197837][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7514.197837][ T253] [ 7514.199555][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7514.199555][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7514.199555][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7514.199555][ T253] ipv6_find_idev+0x102/0x170 [ 7514.199555][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7514.199555][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7514.199555][ T253] netlink_rcv_skb+0x130/0x360 [ 7514.199555][ T253] netlink_unicast+0x449/0x710 [ 7514.199555][ T253] netlink_sendmsg+0x723/0xbe0 [ 7514.199555][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7514.199555][ T253] ___sys_sendmsg+0xee/0x170 [ 7514.199555][ T253] __sys_sendmsg+0xcd/0x170 [ 7514.199555][ T253] do_syscall_64+0xc6/0x1e0 [ 7514.199555][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7514.199555][ T253] [ 7524.354323][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7524.354807][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7524.354807][ T253] dst_init+0x84/0x4a0 [ 7524.354807][ T253] dst_alloc+0x97/0x150 [ 7524.354807][ T253] ip6_dst_alloc+0x23/0x90 [ 7524.354807][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7524.354807][ T253] ip6_pol_route+0x56f/0x840 [ 7524.354807][ T253] fib6_rule_lookup+0x334/0x630 [ 7524.354807][ T253] ip6_route_output_flags+0x259/0x480 [ 7524.354807][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7524.354807][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7524.354807][ T253] netlink_rcv_skb+0x130/0x360 [ 7524.354807][ T253] netlink_unicast+0x449/0x710 [ 7524.354807][ T253] netlink_sendmsg+0x723/0xbe0 [ 7524.354807][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7524.354807][ T253] ___sys_sendmsg+0xee/0x170 [ 7524.354807][ T253] __sys_sendmsg+0xcd/0x170 [ 7524.354807][ T253] do_syscall_64+0xc6/0x1e0 [ 7524.354807][ T253] [ 7524.357006][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7524.357006][ T253] netdev_get_by_index+0x5e/0x80 [ 7524.357006][ T253] fib6_nh_init+0x3d8/0x1580 [ 7524.357006][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7524.357006][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7524.357006][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7524.357006][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7524.357006][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7524.357006][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7524.357006][ T253] addrconf_dad_begin+0x310/0x670 [ 7524.357006][ T253] addrconf_dad_work+0x10b/0xab0 [ 7524.357006][ T253] process_one_work+0x84d/0x18a0 [ 7524.357006][ T253] worker_thread+0x587/0xd30 [ 7524.357006][ T253] kthread+0x28a/0x350 [ 7524.357006][ T253] ret_from_fork+0x31/0x70 [ 7524.357006][ T253] ret_from_fork_asm+0x1a/0x30 [ 7524.357006][ T253] [ 7524.359159][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7524.359159][ T253] netdev_get_by_index+0x5e/0x80 [ 7524.359159][ T253] fib6_nh_init+0x3d8/0x1580 [ 7524.359159][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7524.359159][ T253] ip6_route_add+0x1c/0x140 [ 7524.359159][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7524.359159][ T253] inet6_addr_add+0x4f8/0xa40 [ 7524.359159][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7524.359159][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7524.359159][ T253] netlink_rcv_skb+0x130/0x360 [ 7524.359159][ T253] netlink_unicast+0x449/0x710 [ 7524.359159][ T253] netlink_sendmsg+0x723/0xbe0 [ 7524.359159][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7524.359159][ T253] ___sys_sendmsg+0xee/0x170 [ 7524.359159][ T253] __sys_sendmsg+0xcd/0x170 [ 7524.359159][ T253] do_syscall_64+0xc6/0x1e0 [ 7524.359159][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7524.359159][ T253] [ 7524.361398][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7524.361398][ T253] netdev_get_by_index+0x5e/0x80 [ 7524.361398][ T253] fib6_nh_init+0x3d8/0x1580 [ 7524.361398][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7524.361398][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7524.361398][ T253] ipv6_add_addr+0x411/0x2000 [ 7524.361398][ T253] inet6_addr_add+0x30e/0xa40 [ 7524.361398][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7524.361398][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7524.361398][ T253] netlink_rcv_skb+0x130/0x360 [ 7524.361398][ T253] netlink_unicast+0x449/0x710 [ 7524.361398][ T253] netlink_sendmsg+0x723/0xbe0 [ 7524.361398][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7524.361398][ T253] ___sys_sendmsg+0xee/0x170 [ 7524.361398][ T253] __sys_sendmsg+0xcd/0x170 [ 7524.361398][ T253] do_syscall_64+0xc6/0x1e0 [ 7524.361398][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7524.361398][ T253] [ 7524.363638][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7524.363638][ T253] netdev_get_by_index+0x5e/0x80 [ 7524.363638][ T253] fib6_nh_init+0x3d8/0x1580 [ 7524.363638][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7524.363638][ T253] ip6_route_add+0x1c/0x140 [ 7524.363638][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7524.363638][ T253] addrconf_add_dev+0xe2/0x170 [ 7524.363638][ T253] inet6_addr_add+0x12f/0xa40 [ 7524.363638][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7524.363638][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7524.363638][ T253] netlink_rcv_skb+0x130/0x360 [ 7524.363638][ T253] netlink_unicast+0x449/0x710 [ 7524.363638][ T253] netlink_sendmsg+0x723/0xbe0 [ 7524.363638][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7524.363638][ T253] ___sys_sendmsg+0xee/0x170 [ 7524.363638][ T253] __sys_sendmsg+0xcd/0x170 [ 7524.363638][ T253] do_syscall_64+0xc6/0x1e0 [ 7524.363638][ T253] [ 7524.365865][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7524.365865][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7524.365865][ T253] ipv6_find_idev+0x102/0x170 [ 7524.365865][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7524.365865][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7524.365865][ T253] netlink_rcv_skb+0x130/0x360 [ 7524.365865][ T253] netlink_unicast+0x449/0x710 [ 7524.365865][ T253] netlink_sendmsg+0x723/0xbe0 [ 7524.365865][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7524.365865][ T253] ___sys_sendmsg+0xee/0x170 [ 7524.365865][ T253] __sys_sendmsg+0xcd/0x170 [ 7524.365865][ T253] do_syscall_64+0xc6/0x1e0 [ 7524.365865][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7524.365865][ T253] [ 7524.367591][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7524.367591][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7524.367591][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7524.367591][ T253] ipv6_find_idev+0x102/0x170 [ 7524.367591][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7524.367591][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7524.367591][ T253] netlink_rcv_skb+0x130/0x360 [ 7524.367591][ T253] netlink_unicast+0x449/0x710 [ 7524.367591][ T253] netlink_sendmsg+0x723/0xbe0 [ 7524.367591][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7524.367591][ T253] ___sys_sendmsg+0xee/0x170 [ 7524.367591][ T253] __sys_sendmsg+0xcd/0x170 [ 7524.367591][ T253] do_syscall_64+0xc6/0x1e0 [ 7524.367591][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7524.367591][ T253] [ 7534.474317][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7534.474742][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7534.474742][ T253] dst_init+0x84/0x4a0 [ 7534.474742][ T253] dst_alloc+0x97/0x150 [ 7534.474742][ T253] ip6_dst_alloc+0x23/0x90 [ 7534.474742][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7534.474742][ T253] ip6_pol_route+0x56f/0x840 [ 7534.474742][ T253] fib6_rule_lookup+0x334/0x630 [ 7534.474742][ T253] ip6_route_output_flags+0x259/0x480 [ 7534.474742][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7534.474742][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7534.474742][ T253] netlink_rcv_skb+0x130/0x360 [ 7534.474742][ T253] netlink_unicast+0x449/0x710 [ 7534.474742][ T253] netlink_sendmsg+0x723/0xbe0 [ 7534.474742][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7534.474742][ T253] ___sys_sendmsg+0xee/0x170 [ 7534.474742][ T253] __sys_sendmsg+0xcd/0x170 [ 7534.474742][ T253] do_syscall_64+0xc6/0x1e0 [ 7534.474742][ T253] [ 7534.476981][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7534.476981][ T253] netdev_get_by_index+0x5e/0x80 [ 7534.476981][ T253] fib6_nh_init+0x3d8/0x1580 [ 7534.476981][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7534.476981][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7534.476981][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7534.476981][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7534.476981][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7534.476981][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7534.476981][ T253] addrconf_dad_begin+0x310/0x670 [ 7534.476981][ T253] addrconf_dad_work+0x10b/0xab0 [ 7534.476981][ T253] process_one_work+0x84d/0x18a0 [ 7534.476981][ T253] worker_thread+0x587/0xd30 [ 7534.476981][ T253] kthread+0x28a/0x350 [ 7534.476981][ T253] ret_from_fork+0x31/0x70 [ 7534.476981][ T253] ret_from_fork_asm+0x1a/0x30 [ 7534.476981][ T253] [ 7534.479126][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7534.479126][ T253] netdev_get_by_index+0x5e/0x80 [ 7534.479126][ T253] fib6_nh_init+0x3d8/0x1580 [ 7534.479126][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7534.479126][ T253] ip6_route_add+0x1c/0x140 [ 7534.479126][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7534.479126][ T253] inet6_addr_add+0x4f8/0xa40 [ 7534.479126][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7534.479126][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7534.479126][ T253] netlink_rcv_skb+0x130/0x360 [ 7534.479126][ T253] netlink_unicast+0x449/0x710 [ 7534.479126][ T253] netlink_sendmsg+0x723/0xbe0 [ 7534.479126][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7534.479126][ T253] ___sys_sendmsg+0xee/0x170 [ 7534.479126][ T253] __sys_sendmsg+0xcd/0x170 [ 7534.479126][ T253] do_syscall_64+0xc6/0x1e0 [ 7534.479126][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7534.479126][ T253] [ 7534.481368][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7534.481368][ T253] netdev_get_by_index+0x5e/0x80 [ 7534.481368][ T253] fib6_nh_init+0x3d8/0x1580 [ 7534.481368][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7534.481368][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7534.481368][ T253] ipv6_add_addr+0x411/0x2000 [ 7534.481368][ T253] inet6_addr_add+0x30e/0xa40 [ 7534.481368][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7534.481368][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7534.481368][ T253] netlink_rcv_skb+0x130/0x360 [ 7534.481368][ T253] netlink_unicast+0x449/0x710 [ 7534.481368][ T253] netlink_sendmsg+0x723/0xbe0 [ 7534.481368][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7534.481368][ T253] ___sys_sendmsg+0xee/0x170 [ 7534.481368][ T253] __sys_sendmsg+0xcd/0x170 [ 7534.481368][ T253] do_syscall_64+0xc6/0x1e0 [ 7534.481368][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7534.481368][ T253] [ 7534.483615][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7534.483615][ T253] netdev_get_by_index+0x5e/0x80 [ 7534.483615][ T253] fib6_nh_init+0x3d8/0x1580 [ 7534.483615][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7534.483615][ T253] ip6_route_add+0x1c/0x140 [ 7534.483615][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7534.483615][ T253] addrconf_add_dev+0xe2/0x170 [ 7534.483615][ T253] inet6_addr_add+0x12f/0xa40 [ 7534.483615][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7534.483615][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7534.483615][ T253] netlink_rcv_skb+0x130/0x360 [ 7534.483615][ T253] netlink_unicast+0x449/0x710 [ 7534.483615][ T253] netlink_sendmsg+0x723/0xbe0 [ 7534.483615][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7534.483615][ T253] ___sys_sendmsg+0xee/0x170 [ 7534.483615][ T253] __sys_sendmsg+0xcd/0x170 [ 7534.483615][ T253] do_syscall_64+0xc6/0x1e0 [ 7534.483615][ T253] [ 7534.485837][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7534.485837][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7534.485837][ T253] ipv6_find_idev+0x102/0x170 [ 7534.485837][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7534.485837][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7534.485837][ T253] netlink_rcv_skb+0x130/0x360 [ 7534.485837][ T253] netlink_unicast+0x449/0x710 [ 7534.485837][ T253] netlink_sendmsg+0x723/0xbe0 [ 7534.485837][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7534.485837][ T253] ___sys_sendmsg+0xee/0x170 [ 7534.485837][ T253] __sys_sendmsg+0xcd/0x170 [ 7534.485837][ T253] do_syscall_64+0xc6/0x1e0 [ 7534.485837][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7534.485837][ T253] [ 7534.487569][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7534.487569][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7534.487569][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7534.487569][ T253] ipv6_find_idev+0x102/0x170 [ 7534.487569][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7534.487569][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7534.487569][ T253] netlink_rcv_skb+0x130/0x360 [ 7534.487569][ T253] netlink_unicast+0x449/0x710 [ 7534.487569][ T253] netlink_sendmsg+0x723/0xbe0 [ 7534.487569][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7534.487569][ T253] ___sys_sendmsg+0xee/0x170 [ 7534.487569][ T253] __sys_sendmsg+0xcd/0x170 [ 7534.487569][ T253] do_syscall_64+0xc6/0x1e0 [ 7534.487569][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7534.487569][ T253] [ 7544.730254][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7544.730725][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7544.730725][ T253] dst_init+0x84/0x4a0 [ 7544.730725][ T253] dst_alloc+0x97/0x150 [ 7544.730725][ T253] ip6_dst_alloc+0x23/0x90 [ 7544.730725][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7544.730725][ T253] ip6_pol_route+0x56f/0x840 [ 7544.730725][ T253] fib6_rule_lookup+0x334/0x630 [ 7544.730725][ T253] ip6_route_output_flags+0x259/0x480 [ 7544.730725][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7544.730725][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7544.730725][ T253] netlink_rcv_skb+0x130/0x360 [ 7544.730725][ T253] netlink_unicast+0x449/0x710 [ 7544.730725][ T253] netlink_sendmsg+0x723/0xbe0 [ 7544.730725][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7544.730725][ T253] ___sys_sendmsg+0xee/0x170 [ 7544.730725][ T253] __sys_sendmsg+0xcd/0x170 [ 7544.730725][ T253] do_syscall_64+0xc6/0x1e0 [ 7544.730725][ T253] [ 7544.732921][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7544.732921][ T253] netdev_get_by_index+0x5e/0x80 [ 7544.732921][ T253] fib6_nh_init+0x3d8/0x1580 [ 7544.732921][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7544.732921][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7544.732921][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7544.732921][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7544.732921][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7544.732921][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7544.732921][ T253] addrconf_dad_begin+0x310/0x670 [ 7544.732921][ T253] addrconf_dad_work+0x10b/0xab0 [ 7544.732921][ T253] process_one_work+0x84d/0x18a0 [ 7544.732921][ T253] worker_thread+0x587/0xd30 [ 7544.732921][ T253] kthread+0x28a/0x350 [ 7544.732921][ T253] ret_from_fork+0x31/0x70 [ 7544.732921][ T253] ret_from_fork_asm+0x1a/0x30 [ 7544.732921][ T253] [ 7544.735067][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7544.735067][ T253] netdev_get_by_index+0x5e/0x80 [ 7544.735067][ T253] fib6_nh_init+0x3d8/0x1580 [ 7544.735067][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7544.735067][ T253] ip6_route_add+0x1c/0x140 [ 7544.735067][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7544.735067][ T253] inet6_addr_add+0x4f8/0xa40 [ 7544.735067][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7544.735067][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7544.735067][ T253] netlink_rcv_skb+0x130/0x360 [ 7544.735067][ T253] netlink_unicast+0x449/0x710 [ 7544.735067][ T253] netlink_sendmsg+0x723/0xbe0 [ 7544.735067][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7544.735067][ T253] ___sys_sendmsg+0xee/0x170 [ 7544.735067][ T253] __sys_sendmsg+0xcd/0x170 [ 7544.735067][ T253] do_syscall_64+0xc6/0x1e0 [ 7544.735067][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7544.735067][ T253] [ 7544.737309][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7544.737309][ T253] netdev_get_by_index+0x5e/0x80 [ 7544.737309][ T253] fib6_nh_init+0x3d8/0x1580 [ 7544.737309][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7544.737309][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7544.737309][ T253] ipv6_add_addr+0x411/0x2000 [ 7544.737309][ T253] inet6_addr_add+0x30e/0xa40 [ 7544.737309][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7544.737309][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7544.737309][ T253] netlink_rcv_skb+0x130/0x360 [ 7544.737309][ T253] netlink_unicast+0x449/0x710 [ 7544.737309][ T253] netlink_sendmsg+0x723/0xbe0 [ 7544.737309][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7544.737309][ T253] ___sys_sendmsg+0xee/0x170 [ 7544.737309][ T253] __sys_sendmsg+0xcd/0x170 [ 7544.737309][ T253] do_syscall_64+0xc6/0x1e0 [ 7544.737309][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7544.737309][ T253] [ 7544.739559][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7544.739559][ T253] netdev_get_by_index+0x5e/0x80 [ 7544.739559][ T253] fib6_nh_init+0x3d8/0x1580 [ 7544.739559][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7544.739559][ T253] ip6_route_add+0x1c/0x140 [ 7544.739559][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7544.739559][ T253] addrconf_add_dev+0xe2/0x170 [ 7544.739559][ T253] inet6_addr_add+0x12f/0xa40 [ 7544.739559][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7544.739559][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7544.739559][ T253] netlink_rcv_skb+0x130/0x360 [ 7544.739559][ T253] netlink_unicast+0x449/0x710 [ 7544.739559][ T253] netlink_sendmsg+0x723/0xbe0 [ 7544.739559][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7544.739559][ T253] ___sys_sendmsg+0xee/0x170 [ 7544.739559][ T253] __sys_sendmsg+0xcd/0x170 [ 7544.739559][ T253] do_syscall_64+0xc6/0x1e0 [ 7544.739559][ T253] [ 7544.741754][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7544.741754][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7544.741754][ T253] ipv6_find_idev+0x102/0x170 [ 7544.741754][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7544.741754][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7544.741754][ T253] netlink_rcv_skb+0x130/0x360 [ 7544.741754][ T253] netlink_unicast+0x449/0x710 [ 7544.741754][ T253] netlink_sendmsg+0x723/0xbe0 [ 7544.741754][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7544.741754][ T253] ___sys_sendmsg+0xee/0x170 [ 7544.741754][ T253] __sys_sendmsg+0xcd/0x170 [ 7544.741754][ T253] do_syscall_64+0xc6/0x1e0 [ 7544.741754][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7544.741754][ T253] [ 7544.743472][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7544.743472][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7544.743472][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7544.743472][ T253] ipv6_find_idev+0x102/0x170 [ 7544.743472][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7544.743472][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7544.743472][ T253] netlink_rcv_skb+0x130/0x360 [ 7544.743472][ T253] netlink_unicast+0x449/0x710 [ 7544.743472][ T253] netlink_sendmsg+0x723/0xbe0 [ 7544.743472][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7544.743472][ T253] ___sys_sendmsg+0xee/0x170 [ 7544.743472][ T253] __sys_sendmsg+0xcd/0x170 [ 7544.743472][ T253] do_syscall_64+0xc6/0x1e0 [ 7544.743472][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7544.743472][ T253] [ 7554.986302][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7554.986785][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7554.986785][ T253] dst_init+0x84/0x4a0 [ 7554.986785][ T253] dst_alloc+0x97/0x150 [ 7554.986785][ T253] ip6_dst_alloc+0x23/0x90 [ 7554.986785][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7554.986785][ T253] ip6_pol_route+0x56f/0x840 [ 7554.986785][ T253] fib6_rule_lookup+0x334/0x630 [ 7554.986785][ T253] ip6_route_output_flags+0x259/0x480 [ 7554.986785][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7554.986785][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7554.986785][ T253] netlink_rcv_skb+0x130/0x360 [ 7554.986785][ T253] netlink_unicast+0x449/0x710 [ 7554.986785][ T253] netlink_sendmsg+0x723/0xbe0 [ 7554.986785][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7554.986785][ T253] ___sys_sendmsg+0xee/0x170 [ 7554.986785][ T253] __sys_sendmsg+0xcd/0x170 [ 7554.986785][ T253] do_syscall_64+0xc6/0x1e0 [ 7554.986785][ T253] [ 7554.989021][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7554.989021][ T253] netdev_get_by_index+0x5e/0x80 [ 7554.989021][ T253] fib6_nh_init+0x3d8/0x1580 [ 7554.989021][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7554.989021][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7554.989021][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7554.989021][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7554.989021][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7554.989021][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7554.989021][ T253] addrconf_dad_begin+0x310/0x670 [ 7554.989021][ T253] addrconf_dad_work+0x10b/0xab0 [ 7554.989021][ T253] process_one_work+0x84d/0x18a0 [ 7554.989021][ T253] worker_thread+0x587/0xd30 [ 7554.989021][ T253] kthread+0x28a/0x350 [ 7554.989021][ T253] ret_from_fork+0x31/0x70 [ 7554.989021][ T253] ret_from_fork_asm+0x1a/0x30 [ 7554.989021][ T253] [ 7554.991187][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7554.991187][ T253] netdev_get_by_index+0x5e/0x80 [ 7554.991187][ T253] fib6_nh_init+0x3d8/0x1580 [ 7554.991187][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7554.991187][ T253] ip6_route_add+0x1c/0x140 [ 7554.991187][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7554.991187][ T253] inet6_addr_add+0x4f8/0xa40 [ 7554.991187][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7554.991187][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7554.991187][ T253] netlink_rcv_skb+0x130/0x360 [ 7554.991187][ T253] netlink_unicast+0x449/0x710 [ 7554.991187][ T253] netlink_sendmsg+0x723/0xbe0 [ 7554.991187][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7554.991187][ T253] ___sys_sendmsg+0xee/0x170 [ 7554.991187][ T253] __sys_sendmsg+0xcd/0x170 [ 7554.991187][ T253] do_syscall_64+0xc6/0x1e0 [ 7554.991187][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7554.991187][ T253] [ 7554.993448][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7554.993448][ T253] netdev_get_by_index+0x5e/0x80 [ 7554.993448][ T253] fib6_nh_init+0x3d8/0x1580 [ 7554.993448][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7554.993448][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7554.993448][ T253] ipv6_add_addr+0x411/0x2000 [ 7554.993448][ T253] inet6_addr_add+0x30e/0xa40 [ 7554.993448][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7554.993448][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7554.993448][ T253] netlink_rcv_skb+0x130/0x360 [ 7554.993448][ T253] netlink_unicast+0x449/0x710 [ 7554.993448][ T253] netlink_sendmsg+0x723/0xbe0 [ 7554.993448][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7554.993448][ T253] ___sys_sendmsg+0xee/0x170 [ 7554.993448][ T253] __sys_sendmsg+0xcd/0x170 [ 7554.993448][ T253] do_syscall_64+0xc6/0x1e0 [ 7554.993448][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7554.993448][ T253] [ 7554.995699][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7554.995699][ T253] netdev_get_by_index+0x5e/0x80 [ 7554.995699][ T253] fib6_nh_init+0x3d8/0x1580 [ 7554.995699][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7554.995699][ T253] ip6_route_add+0x1c/0x140 [ 7554.995699][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7554.995699][ T253] addrconf_add_dev+0xe2/0x170 [ 7554.995699][ T253] inet6_addr_add+0x12f/0xa40 [ 7554.995699][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7554.995699][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7554.995699][ T253] netlink_rcv_skb+0x130/0x360 [ 7554.995699][ T253] netlink_unicast+0x449/0x710 [ 7554.995699][ T253] netlink_sendmsg+0x723/0xbe0 [ 7554.995699][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7554.995699][ T253] ___sys_sendmsg+0xee/0x170 [ 7554.995699][ T253] __sys_sendmsg+0xcd/0x170 [ 7554.995699][ T253] do_syscall_64+0xc6/0x1e0 [ 7554.995699][ T253] [ 7554.997892][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7554.997892][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7554.997892][ T253] ipv6_find_idev+0x102/0x170 [ 7554.997892][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7554.997892][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7554.997892][ T253] netlink_rcv_skb+0x130/0x360 [ 7554.997892][ T253] netlink_unicast+0x449/0x710 [ 7554.997892][ T253] netlink_sendmsg+0x723/0xbe0 [ 7554.997892][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7554.997892][ T253] ___sys_sendmsg+0xee/0x170 [ 7554.997892][ T253] __sys_sendmsg+0xcd/0x170 [ 7554.997892][ T253] do_syscall_64+0xc6/0x1e0 [ 7554.997892][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7554.997892][ T253] [ 7554.999628][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7554.999628][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7554.999628][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7554.999628][ T253] ipv6_find_idev+0x102/0x170 [ 7554.999628][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7554.999628][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7554.999628][ T253] netlink_rcv_skb+0x130/0x360 [ 7554.999628][ T253] netlink_unicast+0x449/0x710 [ 7554.999628][ T253] netlink_sendmsg+0x723/0xbe0 [ 7554.999628][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7554.999628][ T253] ___sys_sendmsg+0xee/0x170 [ 7554.999628][ T253] __sys_sendmsg+0xcd/0x170 [ 7554.999628][ T253] do_syscall_64+0xc6/0x1e0 [ 7554.999628][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7554.999628][ T253] [ 7565.242316][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7565.242812][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7565.242812][ T253] dst_init+0x84/0x4a0 [ 7565.242812][ T253] dst_alloc+0x97/0x150 [ 7565.242812][ T253] ip6_dst_alloc+0x23/0x90 [ 7565.242812][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7565.242812][ T253] ip6_pol_route+0x56f/0x840 [ 7565.242812][ T253] fib6_rule_lookup+0x334/0x630 [ 7565.242812][ T253] ip6_route_output_flags+0x259/0x480 [ 7565.242812][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7565.242812][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7565.242812][ T253] netlink_rcv_skb+0x130/0x360 [ 7565.242812][ T253] netlink_unicast+0x449/0x710 [ 7565.242812][ T253] netlink_sendmsg+0x723/0xbe0 [ 7565.242812][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7565.242812][ T253] ___sys_sendmsg+0xee/0x170 [ 7565.242812][ T253] __sys_sendmsg+0xcd/0x170 [ 7565.242812][ T253] do_syscall_64+0xc6/0x1e0 [ 7565.242812][ T253] [ 7565.245028][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7565.245028][ T253] netdev_get_by_index+0x5e/0x80 [ 7565.245028][ T253] fib6_nh_init+0x3d8/0x1580 [ 7565.245028][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7565.245028][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7565.245028][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7565.245028][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7565.245028][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7565.245028][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7565.245028][ T253] addrconf_dad_begin+0x310/0x670 [ 7565.245028][ T253] addrconf_dad_work+0x10b/0xab0 [ 7565.245028][ T253] process_one_work+0x84d/0x18a0 [ 7565.245028][ T253] worker_thread+0x587/0xd30 [ 7565.245028][ T253] kthread+0x28a/0x350 [ 7565.245028][ T253] ret_from_fork+0x31/0x70 [ 7565.245028][ T253] ret_from_fork_asm+0x1a/0x30 [ 7565.245028][ T253] [ 7565.247203][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7565.247203][ T253] netdev_get_by_index+0x5e/0x80 [ 7565.247203][ T253] fib6_nh_init+0x3d8/0x1580 [ 7565.247203][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7565.247203][ T253] ip6_route_add+0x1c/0x140 [ 7565.247203][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7565.247203][ T253] inet6_addr_add+0x4f8/0xa40 [ 7565.247203][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7565.247203][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7565.247203][ T253] netlink_rcv_skb+0x130/0x360 [ 7565.247203][ T253] netlink_unicast+0x449/0x710 [ 7565.247203][ T253] netlink_sendmsg+0x723/0xbe0 [ 7565.247203][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7565.247203][ T253] ___sys_sendmsg+0xee/0x170 [ 7565.247203][ T253] __sys_sendmsg+0xcd/0x170 [ 7565.247203][ T253] do_syscall_64+0xc6/0x1e0 [ 7565.247203][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7565.247203][ T253] [ 7565.249463][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7565.249463][ T253] netdev_get_by_index+0x5e/0x80 [ 7565.249463][ T253] fib6_nh_init+0x3d8/0x1580 [ 7565.249463][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7565.249463][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7565.249463][ T253] ipv6_add_addr+0x411/0x2000 [ 7565.249463][ T253] inet6_addr_add+0x30e/0xa40 [ 7565.249463][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7565.249463][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7565.249463][ T253] netlink_rcv_skb+0x130/0x360 [ 7565.249463][ T253] netlink_unicast+0x449/0x710 [ 7565.249463][ T253] netlink_sendmsg+0x723/0xbe0 [ 7565.249463][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7565.249463][ T253] ___sys_sendmsg+0xee/0x170 [ 7565.249463][ T253] __sys_sendmsg+0xcd/0x170 [ 7565.249463][ T253] do_syscall_64+0xc6/0x1e0 [ 7565.249463][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7565.249463][ T253] [ 7565.251700][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7565.251700][ T253] netdev_get_by_index+0x5e/0x80 [ 7565.251700][ T253] fib6_nh_init+0x3d8/0x1580 [ 7565.251700][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7565.251700][ T253] ip6_route_add+0x1c/0x140 [ 7565.251700][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7565.251700][ T253] addrconf_add_dev+0xe2/0x170 [ 7565.251700][ T253] inet6_addr_add+0x12f/0xa40 [ 7565.251700][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7565.251700][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7565.251700][ T253] netlink_rcv_skb+0x130/0x360 [ 7565.251700][ T253] netlink_unicast+0x449/0x710 [ 7565.251700][ T253] netlink_sendmsg+0x723/0xbe0 [ 7565.251700][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7565.251700][ T253] ___sys_sendmsg+0xee/0x170 [ 7565.251700][ T253] __sys_sendmsg+0xcd/0x170 [ 7565.251700][ T253] do_syscall_64+0xc6/0x1e0 [ 7565.251700][ T253] [ 7565.253910][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7565.253910][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7565.253910][ T253] ipv6_find_idev+0x102/0x170 [ 7565.253910][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7565.253910][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7565.253910][ T253] netlink_rcv_skb+0x130/0x360 [ 7565.253910][ T253] netlink_unicast+0x449/0x710 [ 7565.253910][ T253] netlink_sendmsg+0x723/0xbe0 [ 7565.253910][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7565.253910][ T253] ___sys_sendmsg+0xee/0x170 [ 7565.253910][ T253] __sys_sendmsg+0xcd/0x170 [ 7565.253910][ T253] do_syscall_64+0xc6/0x1e0 [ 7565.253910][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7565.253910][ T253] [ 7565.255658][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7565.255658][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7565.255658][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7565.255658][ T253] ipv6_find_idev+0x102/0x170 [ 7565.255658][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7565.255658][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7565.255658][ T253] netlink_rcv_skb+0x130/0x360 [ 7565.255658][ T253] netlink_unicast+0x449/0x710 [ 7565.255658][ T253] netlink_sendmsg+0x723/0xbe0 [ 7565.255658][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7565.255658][ T253] ___sys_sendmsg+0xee/0x170 [ 7565.255658][ T253] __sys_sendmsg+0xcd/0x170 [ 7565.255658][ T253] do_syscall_64+0xc6/0x1e0 [ 7565.255658][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7565.255658][ T253] [ 7575.498329][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7575.498812][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7575.498812][ T253] dst_init+0x84/0x4a0 [ 7575.498812][ T253] dst_alloc+0x97/0x150 [ 7575.498812][ T253] ip6_dst_alloc+0x23/0x90 [ 7575.498812][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7575.498812][ T253] ip6_pol_route+0x56f/0x840 [ 7575.498812][ T253] fib6_rule_lookup+0x334/0x630 [ 7575.498812][ T253] ip6_route_output_flags+0x259/0x480 [ 7575.498812][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7575.498812][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7575.498812][ T253] netlink_rcv_skb+0x130/0x360 [ 7575.498812][ T253] netlink_unicast+0x449/0x710 [ 7575.498812][ T253] netlink_sendmsg+0x723/0xbe0 [ 7575.498812][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7575.498812][ T253] ___sys_sendmsg+0xee/0x170 [ 7575.498812][ T253] __sys_sendmsg+0xcd/0x170 [ 7575.498812][ T253] do_syscall_64+0xc6/0x1e0 [ 7575.498812][ T253] [ 7575.501042][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7575.501042][ T253] netdev_get_by_index+0x5e/0x80 [ 7575.501042][ T253] fib6_nh_init+0x3d8/0x1580 [ 7575.501042][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7575.501042][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7575.501042][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7575.501042][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7575.501042][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7575.501042][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7575.501042][ T253] addrconf_dad_begin+0x310/0x670 [ 7575.501042][ T253] addrconf_dad_work+0x10b/0xab0 [ 7575.501042][ T253] process_one_work+0x84d/0x18a0 [ 7575.501042][ T253] worker_thread+0x587/0xd30 [ 7575.501042][ T253] kthread+0x28a/0x350 [ 7575.501042][ T253] ret_from_fork+0x31/0x70 [ 7575.501042][ T253] ret_from_fork_asm+0x1a/0x30 [ 7575.501042][ T253] [ 7575.503208][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7575.503208][ T253] netdev_get_by_index+0x5e/0x80 [ 7575.503208][ T253] fib6_nh_init+0x3d8/0x1580 [ 7575.503208][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7575.503208][ T253] ip6_route_add+0x1c/0x140 [ 7575.503208][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7575.503208][ T253] inet6_addr_add+0x4f8/0xa40 [ 7575.503208][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7575.503208][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7575.503208][ T253] netlink_rcv_skb+0x130/0x360 [ 7575.503208][ T253] netlink_unicast+0x449/0x710 [ 7575.503208][ T253] netlink_sendmsg+0x723/0xbe0 [ 7575.503208][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7575.503208][ T253] ___sys_sendmsg+0xee/0x170 [ 7575.503208][ T253] __sys_sendmsg+0xcd/0x170 [ 7575.503208][ T253] do_syscall_64+0xc6/0x1e0 [ 7575.503208][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7575.503208][ T253] [ 7575.505477][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7575.505477][ T253] netdev_get_by_index+0x5e/0x80 [ 7575.505477][ T253] fib6_nh_init+0x3d8/0x1580 [ 7575.505477][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7575.505477][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7575.505477][ T253] ipv6_add_addr+0x411/0x2000 [ 7575.505477][ T253] inet6_addr_add+0x30e/0xa40 [ 7575.505477][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7575.505477][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7575.505477][ T253] netlink_rcv_skb+0x130/0x360 [ 7575.505477][ T253] netlink_unicast+0x449/0x710 [ 7575.505477][ T253] netlink_sendmsg+0x723/0xbe0 [ 7575.505477][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7575.505477][ T253] ___sys_sendmsg+0xee/0x170 [ 7575.505477][ T253] __sys_sendmsg+0xcd/0x170 [ 7575.505477][ T253] do_syscall_64+0xc6/0x1e0 [ 7575.505477][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7575.505477][ T253] [ 7575.507748][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7575.507748][ T253] netdev_get_by_index+0x5e/0x80 [ 7575.507748][ T253] fib6_nh_init+0x3d8/0x1580 [ 7575.507748][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7575.507748][ T253] ip6_route_add+0x1c/0x140 [ 7575.507748][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7575.507748][ T253] addrconf_add_dev+0xe2/0x170 [ 7575.507748][ T253] inet6_addr_add+0x12f/0xa40 [ 7575.507748][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7575.507748][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7575.507748][ T253] netlink_rcv_skb+0x130/0x360 [ 7575.507748][ T253] netlink_unicast+0x449/0x710 [ 7575.507748][ T253] netlink_sendmsg+0x723/0xbe0 [ 7575.507748][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7575.507748][ T253] ___sys_sendmsg+0xee/0x170 [ 7575.507748][ T253] __sys_sendmsg+0xcd/0x170 [ 7575.507748][ T253] do_syscall_64+0xc6/0x1e0 [ 7575.507748][ T253] [ 7575.509978][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7575.509978][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7575.509978][ T253] ipv6_find_idev+0x102/0x170 [ 7575.509978][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7575.509978][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7575.509978][ T253] netlink_rcv_skb+0x130/0x360 [ 7575.509978][ T253] netlink_unicast+0x449/0x710 [ 7575.509978][ T253] netlink_sendmsg+0x723/0xbe0 [ 7575.509978][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7575.509978][ T253] ___sys_sendmsg+0xee/0x170 [ 7575.509978][ T253] __sys_sendmsg+0xcd/0x170 [ 7575.509978][ T253] do_syscall_64+0xc6/0x1e0 [ 7575.509978][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7575.509978][ T253] [ 7575.511750][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7575.511750][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7575.511750][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7575.511750][ T253] ipv6_find_idev+0x102/0x170 [ 7575.511750][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7575.511750][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7575.511750][ T253] netlink_rcv_skb+0x130/0x360 [ 7575.511750][ T253] netlink_unicast+0x449/0x710 [ 7575.511750][ T253] netlink_sendmsg+0x723/0xbe0 [ 7575.511750][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7575.511750][ T253] ___sys_sendmsg+0xee/0x170 [ 7575.511750][ T253] __sys_sendmsg+0xcd/0x170 [ 7575.511750][ T253] do_syscall_64+0xc6/0x1e0 [ 7575.511750][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7575.511750][ T253] [ 7585.754305][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7585.754809][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7585.754809][ T253] dst_init+0x84/0x4a0 [ 7585.754809][ T253] dst_alloc+0x97/0x150 [ 7585.754809][ T253] ip6_dst_alloc+0x23/0x90 [ 7585.754809][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7585.754809][ T253] ip6_pol_route+0x56f/0x840 [ 7585.754809][ T253] fib6_rule_lookup+0x334/0x630 [ 7585.754809][ T253] ip6_route_output_flags+0x259/0x480 [ 7585.754809][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7585.754809][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7585.754809][ T253] netlink_rcv_skb+0x130/0x360 [ 7585.754809][ T253] netlink_unicast+0x449/0x710 [ 7585.754809][ T253] netlink_sendmsg+0x723/0xbe0 [ 7585.754809][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7585.754809][ T253] ___sys_sendmsg+0xee/0x170 [ 7585.754809][ T253] __sys_sendmsg+0xcd/0x170 [ 7585.754809][ T253] do_syscall_64+0xc6/0x1e0 [ 7585.754809][ T253] [ 7585.757028][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7585.757028][ T253] netdev_get_by_index+0x5e/0x80 [ 7585.757028][ T253] fib6_nh_init+0x3d8/0x1580 [ 7585.757028][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7585.757028][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7585.757028][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7585.757028][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7585.757028][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7585.757028][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7585.757028][ T253] addrconf_dad_begin+0x310/0x670 [ 7585.757028][ T253] addrconf_dad_work+0x10b/0xab0 [ 7585.757028][ T253] process_one_work+0x84d/0x18a0 [ 7585.757028][ T253] worker_thread+0x587/0xd30 [ 7585.757028][ T253] kthread+0x28a/0x350 [ 7585.757028][ T253] ret_from_fork+0x31/0x70 [ 7585.757028][ T253] ret_from_fork_asm+0x1a/0x30 [ 7585.757028][ T253] [ 7585.759177][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7585.759177][ T253] netdev_get_by_index+0x5e/0x80 [ 7585.759177][ T253] fib6_nh_init+0x3d8/0x1580 [ 7585.759177][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7585.759177][ T253] ip6_route_add+0x1c/0x140 [ 7585.759177][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7585.759177][ T253] inet6_addr_add+0x4f8/0xa40 [ 7585.759177][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7585.759177][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7585.759177][ T253] netlink_rcv_skb+0x130/0x360 [ 7585.759177][ T253] netlink_unicast+0x449/0x710 [ 7585.759177][ T253] netlink_sendmsg+0x723/0xbe0 [ 7585.759177][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7585.759177][ T253] ___sys_sendmsg+0xee/0x170 [ 7585.759177][ T253] __sys_sendmsg+0xcd/0x170 [ 7585.759177][ T253] do_syscall_64+0xc6/0x1e0 [ 7585.759177][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7585.759177][ T253] [ 7585.761415][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7585.761415][ T253] netdev_get_by_index+0x5e/0x80 [ 7585.761415][ T253] fib6_nh_init+0x3d8/0x1580 [ 7585.761415][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7585.761415][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7585.761415][ T253] ipv6_add_addr+0x411/0x2000 [ 7585.761415][ T253] inet6_addr_add+0x30e/0xa40 [ 7585.761415][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7585.761415][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7585.761415][ T253] netlink_rcv_skb+0x130/0x360 [ 7585.761415][ T253] netlink_unicast+0x449/0x710 [ 7585.761415][ T253] netlink_sendmsg+0x723/0xbe0 [ 7585.761415][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7585.761415][ T253] ___sys_sendmsg+0xee/0x170 [ 7585.761415][ T253] __sys_sendmsg+0xcd/0x170 [ 7585.761415][ T253] do_syscall_64+0xc6/0x1e0 [ 7585.761415][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7585.761415][ T253] [ 7585.763645][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7585.763645][ T253] netdev_get_by_index+0x5e/0x80 [ 7585.763645][ T253] fib6_nh_init+0x3d8/0x1580 [ 7585.763645][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7585.763645][ T253] ip6_route_add+0x1c/0x140 [ 7585.763645][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7585.763645][ T253] addrconf_add_dev+0xe2/0x170 [ 7585.763645][ T253] inet6_addr_add+0x12f/0xa40 [ 7585.763645][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7585.763645][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7585.763645][ T253] netlink_rcv_skb+0x130/0x360 [ 7585.763645][ T253] netlink_unicast+0x449/0x710 [ 7585.763645][ T253] netlink_sendmsg+0x723/0xbe0 [ 7585.763645][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7585.763645][ T253] ___sys_sendmsg+0xee/0x170 [ 7585.763645][ T253] __sys_sendmsg+0xcd/0x170 [ 7585.763645][ T253] do_syscall_64+0xc6/0x1e0 [ 7585.763645][ T253] [ 7585.765865][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7585.765865][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7585.765865][ T253] ipv6_find_idev+0x102/0x170 [ 7585.765865][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7585.765865][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7585.765865][ T253] netlink_rcv_skb+0x130/0x360 [ 7585.765865][ T253] netlink_unicast+0x449/0x710 [ 7585.765865][ T253] netlink_sendmsg+0x723/0xbe0 [ 7585.765865][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7585.765865][ T253] ___sys_sendmsg+0xee/0x170 [ 7585.765865][ T253] __sys_sendmsg+0xcd/0x170 [ 7585.765865][ T253] do_syscall_64+0xc6/0x1e0 [ 7585.765865][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7585.765865][ T253] [ 7585.767587][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7585.767587][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7585.767587][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7585.767587][ T253] ipv6_find_idev+0x102/0x170 [ 7585.767587][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7585.767587][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7585.767587][ T253] netlink_rcv_skb+0x130/0x360 [ 7585.767587][ T253] netlink_unicast+0x449/0x710 [ 7585.767587][ T253] netlink_sendmsg+0x723/0xbe0 [ 7585.767587][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7585.767587][ T253] ___sys_sendmsg+0xee/0x170 [ 7585.767587][ T253] __sys_sendmsg+0xcd/0x170 [ 7585.767587][ T253] do_syscall_64+0xc6/0x1e0 [ 7585.767587][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7585.767587][ T253] [ 7596.010309][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7596.010783][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7596.010783][ T253] dst_init+0x84/0x4a0 [ 7596.010783][ T253] dst_alloc+0x97/0x150 [ 7596.010783][ T253] ip6_dst_alloc+0x23/0x90 [ 7596.010783][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7596.010783][ T253] ip6_pol_route+0x56f/0x840 [ 7596.010783][ T253] fib6_rule_lookup+0x334/0x630 [ 7596.010783][ T253] ip6_route_output_flags+0x259/0x480 [ 7596.010783][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7596.010783][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7596.010783][ T253] netlink_rcv_skb+0x130/0x360 [ 7596.010783][ T253] netlink_unicast+0x449/0x710 [ 7596.010783][ T253] netlink_sendmsg+0x723/0xbe0 [ 7596.010783][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7596.010783][ T253] ___sys_sendmsg+0xee/0x170 [ 7596.010783][ T253] __sys_sendmsg+0xcd/0x170 [ 7596.010783][ T253] do_syscall_64+0xc6/0x1e0 [ 7596.010783][ T253] [ 7596.012984][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7596.012984][ T253] netdev_get_by_index+0x5e/0x80 [ 7596.012984][ T253] fib6_nh_init+0x3d8/0x1580 [ 7596.012984][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7596.012984][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7596.012984][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7596.012984][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7596.012984][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7596.012984][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7596.012984][ T253] addrconf_dad_begin+0x310/0x670 [ 7596.012984][ T253] addrconf_dad_work+0x10b/0xab0 [ 7596.012984][ T253] process_one_work+0x84d/0x18a0 [ 7596.012984][ T253] worker_thread+0x587/0xd30 [ 7596.012984][ T253] kthread+0x28a/0x350 [ 7596.012984][ T253] ret_from_fork+0x31/0x70 [ 7596.012984][ T253] ret_from_fork_asm+0x1a/0x30 [ 7596.012984][ T253] [ 7596.015144][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7596.015144][ T253] netdev_get_by_index+0x5e/0x80 [ 7596.015144][ T253] fib6_nh_init+0x3d8/0x1580 [ 7596.015144][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7596.015144][ T253] ip6_route_add+0x1c/0x140 [ 7596.015144][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7596.015144][ T253] inet6_addr_add+0x4f8/0xa40 [ 7596.015144][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7596.015144][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7596.015144][ T253] netlink_rcv_skb+0x130/0x360 [ 7596.015144][ T253] netlink_unicast+0x449/0x710 [ 7596.015144][ T253] netlink_sendmsg+0x723/0xbe0 [ 7596.015144][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7596.015144][ T253] ___sys_sendmsg+0xee/0x170 [ 7596.015144][ T253] __sys_sendmsg+0xcd/0x170 [ 7596.015144][ T253] do_syscall_64+0xc6/0x1e0 [ 7596.015144][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7596.015144][ T253] [ 7596.017429][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7596.017429][ T253] netdev_get_by_index+0x5e/0x80 [ 7596.017429][ T253] fib6_nh_init+0x3d8/0x1580 [ 7596.017429][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7596.017429][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7596.017429][ T253] ipv6_add_addr+0x411/0x2000 [ 7596.017429][ T253] inet6_addr_add+0x30e/0xa40 [ 7596.017429][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7596.017429][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7596.017429][ T253] netlink_rcv_skb+0x130/0x360 [ 7596.017429][ T253] netlink_unicast+0x449/0x710 [ 7596.017429][ T253] netlink_sendmsg+0x723/0xbe0 [ 7596.017429][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7596.017429][ T253] ___sys_sendmsg+0xee/0x170 [ 7596.017429][ T253] __sys_sendmsg+0xcd/0x170 [ 7596.017429][ T253] do_syscall_64+0xc6/0x1e0 [ 7596.017429][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7596.017429][ T253] [ 7596.019677][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7596.019677][ T253] netdev_get_by_index+0x5e/0x80 [ 7596.019677][ T253] fib6_nh_init+0x3d8/0x1580 [ 7596.019677][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7596.019677][ T253] ip6_route_add+0x1c/0x140 [ 7596.019677][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7596.019677][ T253] addrconf_add_dev+0xe2/0x170 [ 7596.019677][ T253] inet6_addr_add+0x12f/0xa40 [ 7596.019677][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7596.019677][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7596.019677][ T253] netlink_rcv_skb+0x130/0x360 [ 7596.019677][ T253] netlink_unicast+0x449/0x710 [ 7596.019677][ T253] netlink_sendmsg+0x723/0xbe0 [ 7596.019677][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7596.019677][ T253] ___sys_sendmsg+0xee/0x170 [ 7596.019677][ T253] __sys_sendmsg+0xcd/0x170 [ 7596.019677][ T253] do_syscall_64+0xc6/0x1e0 [ 7596.019677][ T253] [ 7596.021885][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7596.021885][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7596.021885][ T253] ipv6_find_idev+0x102/0x170 [ 7596.021885][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7596.021885][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7596.021885][ T253] netlink_rcv_skb+0x130/0x360 [ 7596.021885][ T253] netlink_unicast+0x449/0x710 [ 7596.021885][ T253] netlink_sendmsg+0x723/0xbe0 [ 7596.021885][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7596.021885][ T253] ___sys_sendmsg+0xee/0x170 [ 7596.021885][ T253] __sys_sendmsg+0xcd/0x170 [ 7596.021885][ T253] do_syscall_64+0xc6/0x1e0 [ 7596.021885][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7596.021885][ T253] [ 7596.023625][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7596.023625][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7596.023625][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7596.023625][ T253] ipv6_find_idev+0x102/0x170 [ 7596.023625][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7596.023625][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7596.023625][ T253] netlink_rcv_skb+0x130/0x360 [ 7596.023625][ T253] netlink_unicast+0x449/0x710 [ 7596.023625][ T253] netlink_sendmsg+0x723/0xbe0 [ 7596.023625][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7596.023625][ T253] ___sys_sendmsg+0xee/0x170 [ 7596.023625][ T253] __sys_sendmsg+0xcd/0x170 [ 7596.023625][ T253] do_syscall_64+0xc6/0x1e0 [ 7596.023625][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7596.023625][ T253] [ 7606.266302][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7606.266795][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7606.266795][ T253] dst_init+0x84/0x4a0 [ 7606.266795][ T253] dst_alloc+0x97/0x150 [ 7606.266795][ T253] ip6_dst_alloc+0x23/0x90 [ 7606.266795][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7606.266795][ T253] ip6_pol_route+0x56f/0x840 [ 7606.266795][ T253] fib6_rule_lookup+0x334/0x630 [ 7606.266795][ T253] ip6_route_output_flags+0x259/0x480 [ 7606.266795][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7606.266795][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7606.266795][ T253] netlink_rcv_skb+0x130/0x360 [ 7606.266795][ T253] netlink_unicast+0x449/0x710 [ 7606.266795][ T253] netlink_sendmsg+0x723/0xbe0 [ 7606.266795][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7606.266795][ T253] ___sys_sendmsg+0xee/0x170 [ 7606.266795][ T253] __sys_sendmsg+0xcd/0x170 [ 7606.266795][ T253] do_syscall_64+0xc6/0x1e0 [ 7606.266795][ T253] [ 7606.269001][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7606.269001][ T253] netdev_get_by_index+0x5e/0x80 [ 7606.269001][ T253] fib6_nh_init+0x3d8/0x1580 [ 7606.269001][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7606.269001][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7606.269001][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7606.269001][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7606.269001][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7606.269001][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7606.269001][ T253] addrconf_dad_begin+0x310/0x670 [ 7606.269001][ T253] addrconf_dad_work+0x10b/0xab0 [ 7606.269001][ T253] process_one_work+0x84d/0x18a0 [ 7606.269001][ T253] worker_thread+0x587/0xd30 [ 7606.269001][ T253] kthread+0x28a/0x350 [ 7606.269001][ T253] ret_from_fork+0x31/0x70 [ 7606.269001][ T253] ret_from_fork_asm+0x1a/0x30 [ 7606.269001][ T253] [ 7606.271180][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7606.271180][ T253] netdev_get_by_index+0x5e/0x80 [ 7606.271180][ T253] fib6_nh_init+0x3d8/0x1580 [ 7606.271180][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7606.271180][ T253] ip6_route_add+0x1c/0x140 [ 7606.271180][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7606.271180][ T253] inet6_addr_add+0x4f8/0xa40 [ 7606.271180][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7606.271180][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7606.271180][ T253] netlink_rcv_skb+0x130/0x360 [ 7606.271180][ T253] netlink_unicast+0x449/0x710 [ 7606.271180][ T253] netlink_sendmsg+0x723/0xbe0 [ 7606.271180][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7606.271180][ T253] ___sys_sendmsg+0xee/0x170 [ 7606.271180][ T253] __sys_sendmsg+0xcd/0x170 [ 7606.271180][ T253] do_syscall_64+0xc6/0x1e0 [ 7606.271180][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7606.271180][ T253] [ 7606.273388][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7606.273388][ T253] netdev_get_by_index+0x5e/0x80 [ 7606.273388][ T253] fib6_nh_init+0x3d8/0x1580 [ 7606.273388][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7606.273388][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7606.273388][ T253] ipv6_add_addr+0x411/0x2000 [ 7606.273388][ T253] inet6_addr_add+0x30e/0xa40 [ 7606.273388][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7606.273388][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7606.273388][ T253] netlink_rcv_skb+0x130/0x360 [ 7606.273388][ T253] netlink_unicast+0x449/0x710 [ 7606.273388][ T253] netlink_sendmsg+0x723/0xbe0 [ 7606.273388][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7606.273388][ T253] ___sys_sendmsg+0xee/0x170 [ 7606.273388][ T253] __sys_sendmsg+0xcd/0x170 [ 7606.273388][ T253] do_syscall_64+0xc6/0x1e0 [ 7606.273388][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7606.273388][ T253] [ 7606.275643][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7606.275643][ T253] netdev_get_by_index+0x5e/0x80 [ 7606.275643][ T253] fib6_nh_init+0x3d8/0x1580 [ 7606.275643][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7606.275643][ T253] ip6_route_add+0x1c/0x140 [ 7606.275643][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7606.275643][ T253] addrconf_add_dev+0xe2/0x170 [ 7606.275643][ T253] inet6_addr_add+0x12f/0xa40 [ 7606.275643][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7606.275643][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7606.275643][ T253] netlink_rcv_skb+0x130/0x360 [ 7606.275643][ T253] netlink_unicast+0x449/0x710 [ 7606.275643][ T253] netlink_sendmsg+0x723/0xbe0 [ 7606.275643][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7606.275643][ T253] ___sys_sendmsg+0xee/0x170 [ 7606.275643][ T253] __sys_sendmsg+0xcd/0x170 [ 7606.275643][ T253] do_syscall_64+0xc6/0x1e0 [ 7606.275643][ T253] [ 7606.277845][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7606.277845][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7606.277845][ T253] ipv6_find_idev+0x102/0x170 [ 7606.277845][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7606.277845][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7606.277845][ T253] netlink_rcv_skb+0x130/0x360 [ 7606.277845][ T253] netlink_unicast+0x449/0x710 [ 7606.277845][ T253] netlink_sendmsg+0x723/0xbe0 [ 7606.277845][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7606.277845][ T253] ___sys_sendmsg+0xee/0x170 [ 7606.277845][ T253] __sys_sendmsg+0xcd/0x170 [ 7606.277845][ T253] do_syscall_64+0xc6/0x1e0 [ 7606.277845][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7606.277845][ T253] [ 7606.279570][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7606.279570][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7606.279570][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7606.279570][ T253] ipv6_find_idev+0x102/0x170 [ 7606.279570][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7606.279570][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7606.279570][ T253] netlink_rcv_skb+0x130/0x360 [ 7606.279570][ T253] netlink_unicast+0x449/0x710 [ 7606.279570][ T253] netlink_sendmsg+0x723/0xbe0 [ 7606.279570][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7606.279570][ T253] ___sys_sendmsg+0xee/0x170 [ 7606.279570][ T253] __sys_sendmsg+0xcd/0x170 [ 7606.279570][ T253] do_syscall_64+0xc6/0x1e0 [ 7606.279570][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7606.279570][ T253] [ 7616.522334][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7616.522803][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7616.522803][ T253] dst_init+0x84/0x4a0 [ 7616.522803][ T253] dst_alloc+0x97/0x150 [ 7616.522803][ T253] ip6_dst_alloc+0x23/0x90 [ 7616.522803][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7616.522803][ T253] ip6_pol_route+0x56f/0x840 [ 7616.522803][ T253] fib6_rule_lookup+0x334/0x630 [ 7616.522803][ T253] ip6_route_output_flags+0x259/0x480 [ 7616.522803][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7616.522803][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7616.522803][ T253] netlink_rcv_skb+0x130/0x360 [ 7616.522803][ T253] netlink_unicast+0x449/0x710 [ 7616.522803][ T253] netlink_sendmsg+0x723/0xbe0 [ 7616.522803][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7616.522803][ T253] ___sys_sendmsg+0xee/0x170 [ 7616.522803][ T253] __sys_sendmsg+0xcd/0x170 [ 7616.522803][ T253] do_syscall_64+0xc6/0x1e0 [ 7616.522803][ T253] [ 7616.525073][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7616.525073][ T253] netdev_get_by_index+0x5e/0x80 [ 7616.525073][ T253] fib6_nh_init+0x3d8/0x1580 [ 7616.525073][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7616.525073][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7616.525073][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7616.525073][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7616.525073][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7616.525073][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7616.525073][ T253] addrconf_dad_begin+0x310/0x670 [ 7616.525073][ T253] addrconf_dad_work+0x10b/0xab0 [ 7616.525073][ T253] process_one_work+0x84d/0x18a0 [ 7616.525073][ T253] worker_thread+0x587/0xd30 [ 7616.525073][ T253] kthread+0x28a/0x350 [ 7616.525073][ T253] ret_from_fork+0x31/0x70 [ 7616.525073][ T253] ret_from_fork_asm+0x1a/0x30 [ 7616.525073][ T253] [ 7616.527224][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7616.527224][ T253] netdev_get_by_index+0x5e/0x80 [ 7616.527224][ T253] fib6_nh_init+0x3d8/0x1580 [ 7616.527224][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7616.527224][ T253] ip6_route_add+0x1c/0x140 [ 7616.527224][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7616.527224][ T253] inet6_addr_add+0x4f8/0xa40 [ 7616.527224][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7616.527224][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7616.527224][ T253] netlink_rcv_skb+0x130/0x360 [ 7616.527224][ T253] netlink_unicast+0x449/0x710 [ 7616.527224][ T253] netlink_sendmsg+0x723/0xbe0 [ 7616.527224][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7616.527224][ T253] ___sys_sendmsg+0xee/0x170 [ 7616.527224][ T253] __sys_sendmsg+0xcd/0x170 [ 7616.527224][ T253] do_syscall_64+0xc6/0x1e0 [ 7616.527224][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7616.527224][ T253] [ 7616.529476][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7616.529476][ T253] netdev_get_by_index+0x5e/0x80 [ 7616.529476][ T253] fib6_nh_init+0x3d8/0x1580 [ 7616.529476][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7616.529476][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7616.529476][ T253] ipv6_add_addr+0x411/0x2000 [ 7616.529476][ T253] inet6_addr_add+0x30e/0xa40 [ 7616.529476][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7616.529476][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7616.529476][ T253] netlink_rcv_skb+0x130/0x360 [ 7616.529476][ T253] netlink_unicast+0x449/0x710 [ 7616.529476][ T253] netlink_sendmsg+0x723/0xbe0 [ 7616.529476][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7616.529476][ T253] ___sys_sendmsg+0xee/0x170 [ 7616.529476][ T253] __sys_sendmsg+0xcd/0x170 [ 7616.529476][ T253] do_syscall_64+0xc6/0x1e0 [ 7616.529476][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7616.529476][ T253] [ 7616.531723][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7616.531723][ T253] netdev_get_by_index+0x5e/0x80 [ 7616.531723][ T253] fib6_nh_init+0x3d8/0x1580 [ 7616.531723][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7616.531723][ T253] ip6_route_add+0x1c/0x140 [ 7616.531723][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7616.531723][ T253] addrconf_add_dev+0xe2/0x170 [ 7616.531723][ T253] inet6_addr_add+0x12f/0xa40 [ 7616.531723][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7616.531723][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7616.531723][ T253] netlink_rcv_skb+0x130/0x360 [ 7616.531723][ T253] netlink_unicast+0x449/0x710 [ 7616.531723][ T253] netlink_sendmsg+0x723/0xbe0 [ 7616.531723][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7616.531723][ T253] ___sys_sendmsg+0xee/0x170 [ 7616.531723][ T253] __sys_sendmsg+0xcd/0x170 [ 7616.531723][ T253] do_syscall_64+0xc6/0x1e0 [ 7616.531723][ T253] [ 7616.534044][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7616.534044][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7616.534044][ T253] ipv6_find_idev+0x102/0x170 [ 7616.534044][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7616.534044][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7616.534044][ T253] netlink_rcv_skb+0x130/0x360 [ 7616.534044][ T253] netlink_unicast+0x449/0x710 [ 7616.534044][ T253] netlink_sendmsg+0x723/0xbe0 [ 7616.534044][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7616.534044][ T253] ___sys_sendmsg+0xee/0x170 [ 7616.534044][ T253] __sys_sendmsg+0xcd/0x170 [ 7616.534044][ T253] do_syscall_64+0xc6/0x1e0 [ 7616.534044][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7616.534044][ T253] [ 7616.535797][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7616.535797][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7616.535797][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7616.535797][ T253] ipv6_find_idev+0x102/0x170 [ 7616.535797][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7616.535797][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7616.535797][ T253] netlink_rcv_skb+0x130/0x360 [ 7616.535797][ T253] netlink_unicast+0x449/0x710 [ 7616.535797][ T253] netlink_sendmsg+0x723/0xbe0 [ 7616.535797][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7616.535797][ T253] ___sys_sendmsg+0xee/0x170 [ 7616.535797][ T253] __sys_sendmsg+0xcd/0x170 [ 7616.535797][ T253] do_syscall_64+0xc6/0x1e0 [ 7616.535797][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7616.535797][ T253] [ 7626.562342][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7626.562785][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7626.562785][ T253] dst_init+0x84/0x4a0 [ 7626.562785][ T253] dst_alloc+0x97/0x150 [ 7626.562785][ T253] ip6_dst_alloc+0x23/0x90 [ 7626.562785][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7626.562785][ T253] ip6_pol_route+0x56f/0x840 [ 7626.562785][ T253] fib6_rule_lookup+0x334/0x630 [ 7626.562785][ T253] ip6_route_output_flags+0x259/0x480 [ 7626.562785][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7626.562785][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7626.562785][ T253] netlink_rcv_skb+0x130/0x360 [ 7626.562785][ T253] netlink_unicast+0x449/0x710 [ 7626.562785][ T253] netlink_sendmsg+0x723/0xbe0 [ 7626.562785][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7626.562785][ T253] ___sys_sendmsg+0xee/0x170 [ 7626.562785][ T253] __sys_sendmsg+0xcd/0x170 [ 7626.562785][ T253] do_syscall_64+0xc6/0x1e0 [ 7626.562785][ T253] [ 7626.564996][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7626.564996][ T253] netdev_get_by_index+0x5e/0x80 [ 7626.564996][ T253] fib6_nh_init+0x3d8/0x1580 [ 7626.564996][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7626.564996][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7626.564996][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7626.564996][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7626.564996][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7626.564996][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7626.564996][ T253] addrconf_dad_begin+0x310/0x670 [ 7626.564996][ T253] addrconf_dad_work+0x10b/0xab0 [ 7626.564996][ T253] process_one_work+0x84d/0x18a0 [ 7626.564996][ T253] worker_thread+0x587/0xd30 [ 7626.564996][ T253] kthread+0x28a/0x350 [ 7626.564996][ T253] ret_from_fork+0x31/0x70 [ 7626.564996][ T253] ret_from_fork_asm+0x1a/0x30 [ 7626.564996][ T253] [ 7626.567141][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7626.567141][ T253] netdev_get_by_index+0x5e/0x80 [ 7626.567141][ T253] fib6_nh_init+0x3d8/0x1580 [ 7626.567141][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7626.567141][ T253] ip6_route_add+0x1c/0x140 [ 7626.567141][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7626.567141][ T253] inet6_addr_add+0x4f8/0xa40 [ 7626.567141][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7626.567141][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7626.567141][ T253] netlink_rcv_skb+0x130/0x360 [ 7626.567141][ T253] netlink_unicast+0x449/0x710 [ 7626.567141][ T253] netlink_sendmsg+0x723/0xbe0 [ 7626.567141][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7626.567141][ T253] ___sys_sendmsg+0xee/0x170 [ 7626.567141][ T253] __sys_sendmsg+0xcd/0x170 [ 7626.567141][ T253] do_syscall_64+0xc6/0x1e0 [ 7626.567141][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7626.567141][ T253] [ 7626.569378][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7626.569378][ T253] netdev_get_by_index+0x5e/0x80 [ 7626.569378][ T253] fib6_nh_init+0x3d8/0x1580 [ 7626.569378][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7626.569378][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7626.569378][ T253] ipv6_add_addr+0x411/0x2000 [ 7626.569378][ T253] inet6_addr_add+0x30e/0xa40 [ 7626.569378][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7626.569378][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7626.569378][ T253] netlink_rcv_skb+0x130/0x360 [ 7626.569378][ T253] netlink_unicast+0x449/0x710 [ 7626.569378][ T253] netlink_sendmsg+0x723/0xbe0 [ 7626.569378][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7626.569378][ T253] ___sys_sendmsg+0xee/0x170 [ 7626.569378][ T253] __sys_sendmsg+0xcd/0x170 [ 7626.569378][ T253] do_syscall_64+0xc6/0x1e0 [ 7626.569378][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7626.569378][ T253] [ 7626.571623][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7626.571623][ T253] netdev_get_by_index+0x5e/0x80 [ 7626.571623][ T253] fib6_nh_init+0x3d8/0x1580 [ 7626.571623][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7626.571623][ T253] ip6_route_add+0x1c/0x140 [ 7626.571623][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7626.571623][ T253] addrconf_add_dev+0xe2/0x170 [ 7626.571623][ T253] inet6_addr_add+0x12f/0xa40 [ 7626.571623][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7626.571623][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7626.571623][ T253] netlink_rcv_skb+0x130/0x360 [ 7626.571623][ T253] netlink_unicast+0x449/0x710 [ 7626.571623][ T253] netlink_sendmsg+0x723/0xbe0 [ 7626.571623][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7626.571623][ T253] ___sys_sendmsg+0xee/0x170 [ 7626.571623][ T253] __sys_sendmsg+0xcd/0x170 [ 7626.571623][ T253] do_syscall_64+0xc6/0x1e0 [ 7626.571623][ T253] [ 7626.573825][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7626.573825][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7626.573825][ T253] ipv6_find_idev+0x102/0x170 [ 7626.573825][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7626.573825][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7626.573825][ T253] netlink_rcv_skb+0x130/0x360 [ 7626.573825][ T253] netlink_unicast+0x449/0x710 [ 7626.573825][ T253] netlink_sendmsg+0x723/0xbe0 [ 7626.573825][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7626.573825][ T253] ___sys_sendmsg+0xee/0x170 [ 7626.573825][ T253] __sys_sendmsg+0xcd/0x170 [ 7626.573825][ T253] do_syscall_64+0xc6/0x1e0 [ 7626.573825][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7626.573825][ T253] [ 7626.575559][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7626.575559][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7626.575559][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7626.575559][ T253] ipv6_find_idev+0x102/0x170 [ 7626.575559][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7626.575559][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7626.575559][ T253] netlink_rcv_skb+0x130/0x360 [ 7626.575559][ T253] netlink_unicast+0x449/0x710 [ 7626.575559][ T253] netlink_sendmsg+0x723/0xbe0 [ 7626.575559][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7626.575559][ T253] ___sys_sendmsg+0xee/0x170 [ 7626.575559][ T253] __sys_sendmsg+0xcd/0x170 [ 7626.575559][ T253] do_syscall_64+0xc6/0x1e0 [ 7626.575559][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7626.575559][ T253] [ 7636.818309][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7636.818805][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7636.818805][ T253] dst_init+0x84/0x4a0 [ 7636.818805][ T253] dst_alloc+0x97/0x150 [ 7636.818805][ T253] ip6_dst_alloc+0x23/0x90 [ 7636.818805][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7636.818805][ T253] ip6_pol_route+0x56f/0x840 [ 7636.818805][ T253] fib6_rule_lookup+0x334/0x630 [ 7636.818805][ T253] ip6_route_output_flags+0x259/0x480 [ 7636.818805][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7636.818805][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7636.818805][ T253] netlink_rcv_skb+0x130/0x360 [ 7636.818805][ T253] netlink_unicast+0x449/0x710 [ 7636.818805][ T253] netlink_sendmsg+0x723/0xbe0 [ 7636.818805][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7636.818805][ T253] ___sys_sendmsg+0xee/0x170 [ 7636.818805][ T253] __sys_sendmsg+0xcd/0x170 [ 7636.818805][ T253] do_syscall_64+0xc6/0x1e0 [ 7636.818805][ T253] [ 7636.821213][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7636.821213][ T253] netdev_get_by_index+0x5e/0x80 [ 7636.821213][ T253] fib6_nh_init+0x3d8/0x1580 [ 7636.821213][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7636.821213][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7636.821213][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7636.821213][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7636.821213][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7636.821213][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7636.821213][ T253] addrconf_dad_begin+0x310/0x670 [ 7636.821213][ T253] addrconf_dad_work+0x10b/0xab0 [ 7636.821213][ T253] process_one_work+0x84d/0x18a0 [ 7636.821213][ T253] worker_thread+0x587/0xd30 [ 7636.821213][ T253] kthread+0x28a/0x350 [ 7636.821213][ T253] ret_from_fork+0x31/0x70 [ 7636.821213][ T253] ret_from_fork_asm+0x1a/0x30 [ 7636.821213][ T253] [ 7636.823612][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7636.823612][ T253] netdev_get_by_index+0x5e/0x80 [ 7636.823612][ T253] fib6_nh_init+0x3d8/0x1580 [ 7636.823612][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7636.823612][ T253] ip6_route_add+0x1c/0x140 [ 7636.823612][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7636.823612][ T253] inet6_addr_add+0x4f8/0xa40 [ 7636.823612][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7636.823612][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7636.823612][ T253] netlink_rcv_skb+0x130/0x360 [ 7636.823612][ T253] netlink_unicast+0x449/0x710 [ 7636.823612][ T253] netlink_sendmsg+0x723/0xbe0 [ 7636.823612][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7636.823612][ T253] ___sys_sendmsg+0xee/0x170 [ 7636.823612][ T253] __sys_sendmsg+0xcd/0x170 [ 7636.823612][ T253] do_syscall_64+0xc6/0x1e0 [ 7636.823612][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7636.823612][ T253] [ 7636.826092][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7636.826092][ T253] netdev_get_by_index+0x5e/0x80 [ 7636.826092][ T253] fib6_nh_init+0x3d8/0x1580 [ 7636.826092][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7636.826092][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7636.826092][ T253] ipv6_add_addr+0x411/0x2000 [ 7636.826092][ T253] inet6_addr_add+0x30e/0xa40 [ 7636.826092][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7636.826092][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7636.826092][ T253] netlink_rcv_skb+0x130/0x360 [ 7636.826092][ T253] netlink_unicast+0x449/0x710 [ 7636.826092][ T253] netlink_sendmsg+0x723/0xbe0 [ 7636.826092][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7636.826092][ T253] ___sys_sendmsg+0xee/0x170 [ 7636.826092][ T253] __sys_sendmsg+0xcd/0x170 [ 7636.826092][ T253] do_syscall_64+0xc6/0x1e0 [ 7636.826092][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7636.826092][ T253] [ 7636.828309][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7636.828309][ T253] netdev_get_by_index+0x5e/0x80 [ 7636.828309][ T253] fib6_nh_init+0x3d8/0x1580 [ 7636.828309][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7636.828309][ T253] ip6_route_add+0x1c/0x140 [ 7636.828309][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7636.828309][ T253] addrconf_add_dev+0xe2/0x170 [ 7636.828309][ T253] inet6_addr_add+0x12f/0xa40 [ 7636.828309][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7636.828309][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7636.828309][ T253] netlink_rcv_skb+0x130/0x360 [ 7636.828309][ T253] netlink_unicast+0x449/0x710 [ 7636.828309][ T253] netlink_sendmsg+0x723/0xbe0 [ 7636.828309][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7636.828309][ T253] ___sys_sendmsg+0xee/0x170 [ 7636.828309][ T253] __sys_sendmsg+0xcd/0x170 [ 7636.828309][ T253] do_syscall_64+0xc6/0x1e0 [ 7636.828309][ T253] [ 7636.830472][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7636.830472][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7636.830472][ T253] ipv6_find_idev+0x102/0x170 [ 7636.830472][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7636.830472][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7636.830472][ T253] netlink_rcv_skb+0x130/0x360 [ 7636.830472][ T253] netlink_unicast+0x449/0x710 [ 7636.830472][ T253] netlink_sendmsg+0x723/0xbe0 [ 7636.830472][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7636.830472][ T253] ___sys_sendmsg+0xee/0x170 [ 7636.830472][ T253] __sys_sendmsg+0xcd/0x170 [ 7636.830472][ T253] do_syscall_64+0xc6/0x1e0 [ 7636.830472][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7636.830472][ T253] [ 7636.832199][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7636.832199][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7636.832199][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7636.832199][ T253] ipv6_find_idev+0x102/0x170 [ 7636.832199][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7636.832199][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7636.832199][ T253] netlink_rcv_skb+0x130/0x360 [ 7636.832199][ T253] netlink_unicast+0x449/0x710 [ 7636.832199][ T253] netlink_sendmsg+0x723/0xbe0 [ 7636.832199][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7636.832199][ T253] ___sys_sendmsg+0xee/0x170 [ 7636.832199][ T253] __sys_sendmsg+0xcd/0x170 [ 7636.832199][ T253] do_syscall_64+0xc6/0x1e0 [ 7636.832199][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7636.832199][ T253] [ 7647.034328][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7647.034737][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7647.034737][ T253] dst_init+0x84/0x4a0 [ 7647.034737][ T253] dst_alloc+0x97/0x150 [ 7647.034737][ T253] ip6_dst_alloc+0x23/0x90 [ 7647.034737][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7647.034737][ T253] ip6_pol_route+0x56f/0x840 [ 7647.034737][ T253] fib6_rule_lookup+0x334/0x630 [ 7647.034737][ T253] ip6_route_output_flags+0x259/0x480 [ 7647.034737][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7647.034737][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7647.034737][ T253] netlink_rcv_skb+0x130/0x360 [ 7647.034737][ T253] netlink_unicast+0x449/0x710 [ 7647.034737][ T253] netlink_sendmsg+0x723/0xbe0 [ 7647.034737][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7647.034737][ T253] ___sys_sendmsg+0xee/0x170 [ 7647.034737][ T253] __sys_sendmsg+0xcd/0x170 [ 7647.034737][ T253] do_syscall_64+0xc6/0x1e0 [ 7647.034737][ T253] [ 7647.036951][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7647.036951][ T253] netdev_get_by_index+0x5e/0x80 [ 7647.036951][ T253] fib6_nh_init+0x3d8/0x1580 [ 7647.036951][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7647.036951][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7647.036951][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7647.036951][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7647.036951][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7647.036951][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7647.036951][ T253] addrconf_dad_begin+0x310/0x670 [ 7647.036951][ T253] addrconf_dad_work+0x10b/0xab0 [ 7647.036951][ T253] process_one_work+0x84d/0x18a0 [ 7647.036951][ T253] worker_thread+0x587/0xd30 [ 7647.036951][ T253] kthread+0x28a/0x350 [ 7647.036951][ T253] ret_from_fork+0x31/0x70 [ 7647.036951][ T253] ret_from_fork_asm+0x1a/0x30 [ 7647.036951][ T253] [ 7647.039092][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7647.039092][ T253] netdev_get_by_index+0x5e/0x80 [ 7647.039092][ T253] fib6_nh_init+0x3d8/0x1580 [ 7647.039092][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7647.039092][ T253] ip6_route_add+0x1c/0x140 [ 7647.039092][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7647.039092][ T253] inet6_addr_add+0x4f8/0xa40 [ 7647.039092][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7647.039092][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7647.039092][ T253] netlink_rcv_skb+0x130/0x360 [ 7647.039092][ T253] netlink_unicast+0x449/0x710 [ 7647.039092][ T253] netlink_sendmsg+0x723/0xbe0 [ 7647.039092][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7647.039092][ T253] ___sys_sendmsg+0xee/0x170 [ 7647.039092][ T253] __sys_sendmsg+0xcd/0x170 [ 7647.039092][ T253] do_syscall_64+0xc6/0x1e0 [ 7647.039092][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7647.039092][ T253] [ 7647.041317][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7647.041317][ T253] netdev_get_by_index+0x5e/0x80 [ 7647.041317][ T253] fib6_nh_init+0x3d8/0x1580 [ 7647.041317][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7647.041317][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7647.041317][ T253] ipv6_add_addr+0x411/0x2000 [ 7647.041317][ T253] inet6_addr_add+0x30e/0xa40 [ 7647.041317][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7647.041317][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7647.041317][ T253] netlink_rcv_skb+0x130/0x360 [ 7647.041317][ T253] netlink_unicast+0x449/0x710 [ 7647.041317][ T253] netlink_sendmsg+0x723/0xbe0 [ 7647.041317][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7647.041317][ T253] ___sys_sendmsg+0xee/0x170 [ 7647.041317][ T253] __sys_sendmsg+0xcd/0x170 [ 7647.041317][ T253] do_syscall_64+0xc6/0x1e0 [ 7647.041317][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7647.041317][ T253] [ 7647.043546][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7647.043546][ T253] netdev_get_by_index+0x5e/0x80 [ 7647.043546][ T253] fib6_nh_init+0x3d8/0x1580 [ 7647.043546][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7647.043546][ T253] ip6_route_add+0x1c/0x140 [ 7647.043546][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7647.043546][ T253] addrconf_add_dev+0xe2/0x170 [ 7647.043546][ T253] inet6_addr_add+0x12f/0xa40 [ 7647.043546][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7647.043546][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7647.043546][ T253] netlink_rcv_skb+0x130/0x360 [ 7647.043546][ T253] netlink_unicast+0x449/0x710 [ 7647.043546][ T253] netlink_sendmsg+0x723/0xbe0 [ 7647.043546][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7647.043546][ T253] ___sys_sendmsg+0xee/0x170 [ 7647.043546][ T253] __sys_sendmsg+0xcd/0x170 [ 7647.043546][ T253] do_syscall_64+0xc6/0x1e0 [ 7647.043546][ T253] [ 7647.045753][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7647.045753][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7647.045753][ T253] ipv6_find_idev+0x102/0x170 [ 7647.045753][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7647.045753][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7647.045753][ T253] netlink_rcv_skb+0x130/0x360 [ 7647.045753][ T253] netlink_unicast+0x449/0x710 [ 7647.045753][ T253] netlink_sendmsg+0x723/0xbe0 [ 7647.045753][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7647.045753][ T253] ___sys_sendmsg+0xee/0x170 [ 7647.045753][ T253] __sys_sendmsg+0xcd/0x170 [ 7647.045753][ T253] do_syscall_64+0xc6/0x1e0 [ 7647.045753][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7647.045753][ T253] [ 7647.047481][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7647.047481][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7647.047481][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7647.047481][ T253] ipv6_find_idev+0x102/0x170 [ 7647.047481][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7647.047481][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7647.047481][ T253] netlink_rcv_skb+0x130/0x360 [ 7647.047481][ T253] netlink_unicast+0x449/0x710 [ 7647.047481][ T253] netlink_sendmsg+0x723/0xbe0 [ 7647.047481][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7647.047481][ T253] ___sys_sendmsg+0xee/0x170 [ 7647.047481][ T253] __sys_sendmsg+0xcd/0x170 [ 7647.047481][ T253] do_syscall_64+0xc6/0x1e0 [ 7647.047481][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7647.047481][ T253] [ 7657.130251][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7657.130859][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7657.130859][ T253] dst_init+0x84/0x4a0 [ 7657.130859][ T253] dst_alloc+0x97/0x150 [ 7657.130859][ T253] ip6_dst_alloc+0x23/0x90 [ 7657.130859][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7657.130859][ T253] ip6_pol_route+0x56f/0x840 [ 7657.130859][ T253] fib6_rule_lookup+0x334/0x630 [ 7657.130859][ T253] ip6_route_output_flags+0x259/0x480 [ 7657.130859][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7657.130859][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7657.130859][ T253] netlink_rcv_skb+0x130/0x360 [ 7657.130859][ T253] netlink_unicast+0x449/0x710 [ 7657.130859][ T253] netlink_sendmsg+0x723/0xbe0 [ 7657.130859][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7657.130859][ T253] ___sys_sendmsg+0xee/0x170 [ 7657.130859][ T253] __sys_sendmsg+0xcd/0x170 [ 7657.130859][ T253] do_syscall_64+0xc6/0x1e0 [ 7657.130859][ T253] [ 7657.133275][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7657.133275][ T253] netdev_get_by_index+0x5e/0x80 [ 7657.133275][ T253] fib6_nh_init+0x3d8/0x1580 [ 7657.133275][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7657.133275][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7657.133275][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7657.133275][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7657.133275][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7657.133275][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7657.133275][ T253] addrconf_dad_begin+0x310/0x670 [ 7657.133275][ T253] addrconf_dad_work+0x10b/0xab0 [ 7657.133275][ T253] process_one_work+0x84d/0x18a0 [ 7657.133275][ T253] worker_thread+0x587/0xd30 [ 7657.133275][ T253] kthread+0x28a/0x350 [ 7657.133275][ T253] ret_from_fork+0x31/0x70 [ 7657.133275][ T253] ret_from_fork_asm+0x1a/0x30 [ 7657.133275][ T253] [ 7657.135529][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7657.135529][ T253] netdev_get_by_index+0x5e/0x80 [ 7657.135529][ T253] fib6_nh_init+0x3d8/0x1580 [ 7657.135529][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7657.135529][ T253] ip6_route_add+0x1c/0x140 [ 7657.135529][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7657.135529][ T253] inet6_addr_add+0x4f8/0xa40 [ 7657.135529][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7657.135529][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7657.135529][ T253] netlink_rcv_skb+0x130/0x360 [ 7657.135529][ T253] netlink_unicast+0x449/0x710 [ 7657.135529][ T253] netlink_sendmsg+0x723/0xbe0 [ 7657.135529][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7657.135529][ T253] ___sys_sendmsg+0xee/0x170 [ 7657.135529][ T253] __sys_sendmsg+0xcd/0x170 [ 7657.135529][ T253] do_syscall_64+0xc6/0x1e0 [ 7657.135529][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7657.135529][ T253] [ 7657.137911][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7657.137911][ T253] netdev_get_by_index+0x5e/0x80 [ 7657.137911][ T253] fib6_nh_init+0x3d8/0x1580 [ 7657.137911][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7657.137911][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7657.137911][ T253] ipv6_add_addr+0x411/0x2000 [ 7657.137911][ T253] inet6_addr_add+0x30e/0xa40 [ 7657.137911][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7657.137911][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7657.137911][ T253] netlink_rcv_skb+0x130/0x360 [ 7657.137911][ T253] netlink_unicast+0x449/0x710 [ 7657.137911][ T253] netlink_sendmsg+0x723/0xbe0 [ 7657.137911][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7657.137911][ T253] ___sys_sendmsg+0xee/0x170 [ 7657.137911][ T253] __sys_sendmsg+0xcd/0x170 [ 7657.137911][ T253] do_syscall_64+0xc6/0x1e0 [ 7657.137911][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7657.137911][ T253] [ 7657.140296][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7657.140296][ T253] netdev_get_by_index+0x5e/0x80 [ 7657.140296][ T253] fib6_nh_init+0x3d8/0x1580 [ 7657.140296][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7657.140296][ T253] ip6_route_add+0x1c/0x140 [ 7657.140296][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7657.140296][ T253] addrconf_add_dev+0xe2/0x170 [ 7657.140296][ T253] inet6_addr_add+0x12f/0xa40 [ 7657.140296][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7657.140296][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7657.140296][ T253] netlink_rcv_skb+0x130/0x360 [ 7657.140296][ T253] netlink_unicast+0x449/0x710 [ 7657.140296][ T253] netlink_sendmsg+0x723/0xbe0 [ 7657.140296][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7657.140296][ T253] ___sys_sendmsg+0xee/0x170 [ 7657.140296][ T253] __sys_sendmsg+0xcd/0x170 [ 7657.140296][ T253] do_syscall_64+0xc6/0x1e0 [ 7657.140296][ T253] [ 7657.142674][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7657.142674][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7657.142674][ T253] ipv6_find_idev+0x102/0x170 [ 7657.142674][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7657.142674][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7657.142674][ T253] netlink_rcv_skb+0x130/0x360 [ 7657.142674][ T253] netlink_unicast+0x449/0x710 [ 7657.142674][ T253] netlink_sendmsg+0x723/0xbe0 [ 7657.142674][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7657.142674][ T253] ___sys_sendmsg+0xee/0x170 [ 7657.142674][ T253] __sys_sendmsg+0xcd/0x170 [ 7657.142674][ T253] do_syscall_64+0xc6/0x1e0 [ 7657.142674][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7657.142674][ T253] [ 7657.144509][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7657.144509][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7657.144509][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7657.144509][ T253] ipv6_find_idev+0x102/0x170 [ 7657.144509][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7657.144509][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7657.144509][ T253] netlink_rcv_skb+0x130/0x360 [ 7657.144509][ T253] netlink_unicast+0x449/0x710 [ 7657.144509][ T253] netlink_sendmsg+0x723/0xbe0 [ 7657.144509][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7657.144509][ T253] ___sys_sendmsg+0xee/0x170 [ 7657.144509][ T253] __sys_sendmsg+0xcd/0x170 [ 7657.144509][ T253] do_syscall_64+0xc6/0x1e0 [ 7657.144509][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7657.144509][ T253] [ 7667.362306][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7667.362803][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7667.362803][ T253] dst_init+0x84/0x4a0 [ 7667.362803][ T253] dst_alloc+0x97/0x150 [ 7667.362803][ T253] ip6_dst_alloc+0x23/0x90 [ 7667.362803][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7667.362803][ T253] ip6_pol_route+0x56f/0x840 [ 7667.362803][ T253] fib6_rule_lookup+0x334/0x630 [ 7667.362803][ T253] ip6_route_output_flags+0x259/0x480 [ 7667.362803][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7667.362803][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7667.362803][ T253] netlink_rcv_skb+0x130/0x360 [ 7667.362803][ T253] netlink_unicast+0x449/0x710 [ 7667.362803][ T253] netlink_sendmsg+0x723/0xbe0 [ 7667.362803][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7667.362803][ T253] ___sys_sendmsg+0xee/0x170 [ 7667.362803][ T253] __sys_sendmsg+0xcd/0x170 [ 7667.362803][ T253] do_syscall_64+0xc6/0x1e0 [ 7667.362803][ T253] [ 7667.365476][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7667.365476][ T253] netdev_get_by_index+0x5e/0x80 [ 7667.365476][ T253] fib6_nh_init+0x3d8/0x1580 [ 7667.365476][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7667.365476][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7667.365476][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7667.365476][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7667.365476][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7667.365476][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7667.365476][ T253] addrconf_dad_begin+0x310/0x670 [ 7667.365476][ T253] addrconf_dad_work+0x10b/0xab0 [ 7667.365476][ T253] process_one_work+0x84d/0x18a0 [ 7667.365476][ T253] worker_thread+0x587/0xd30 [ 7667.365476][ T253] kthread+0x28a/0x350 [ 7667.365476][ T253] ret_from_fork+0x31/0x70 [ 7667.365476][ T253] ret_from_fork_asm+0x1a/0x30 [ 7667.365476][ T253] [ 7667.368070][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7667.368070][ T253] netdev_get_by_index+0x5e/0x80 [ 7667.368070][ T253] fib6_nh_init+0x3d8/0x1580 [ 7667.368070][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7667.368070][ T253] ip6_route_add+0x1c/0x140 [ 7667.368070][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7667.368070][ T253] inet6_addr_add+0x4f8/0xa40 [ 7667.368070][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7667.368070][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7667.368070][ T253] netlink_rcv_skb+0x130/0x360 [ 7667.368070][ T253] netlink_unicast+0x449/0x710 [ 7667.368070][ T253] netlink_sendmsg+0x723/0xbe0 [ 7667.368070][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7667.368070][ T253] ___sys_sendmsg+0xee/0x170 [ 7667.368070][ T253] __sys_sendmsg+0xcd/0x170 [ 7667.368070][ T253] do_syscall_64+0xc6/0x1e0 [ 7667.368070][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7667.368070][ T253] [ 7667.370783][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7667.370783][ T253] netdev_get_by_index+0x5e/0x80 [ 7667.370783][ T253] fib6_nh_init+0x3d8/0x1580 [ 7667.370783][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7667.370783][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7667.370783][ T253] ipv6_add_addr+0x411/0x2000 [ 7667.370783][ T253] inet6_addr_add+0x30e/0xa40 [ 7667.370783][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7667.370783][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7667.370783][ T253] netlink_rcv_skb+0x130/0x360 [ 7667.370783][ T253] netlink_unicast+0x449/0x710 [ 7667.370783][ T253] netlink_sendmsg+0x723/0xbe0 [ 7667.370783][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7667.370783][ T253] ___sys_sendmsg+0xee/0x170 [ 7667.370783][ T253] __sys_sendmsg+0xcd/0x170 [ 7667.370783][ T253] do_syscall_64+0xc6/0x1e0 [ 7667.370783][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7667.370783][ T253] [ 7667.373495][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7667.373495][ T253] netdev_get_by_index+0x5e/0x80 [ 7667.373495][ T253] fib6_nh_init+0x3d8/0x1580 [ 7667.373495][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7667.373495][ T253] ip6_route_add+0x1c/0x140 [ 7667.373495][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7667.373495][ T253] addrconf_add_dev+0xe2/0x170 [ 7667.373495][ T253] inet6_addr_add+0x12f/0xa40 [ 7667.373495][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7667.373495][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7667.373495][ T253] netlink_rcv_skb+0x130/0x360 [ 7667.373495][ T253] netlink_unicast+0x449/0x710 [ 7667.373495][ T253] netlink_sendmsg+0x723/0xbe0 [ 7667.373495][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7667.373495][ T253] ___sys_sendmsg+0xee/0x170 [ 7667.373495][ T253] __sys_sendmsg+0xcd/0x170 [ 7667.373495][ T253] do_syscall_64+0xc6/0x1e0 [ 7667.373495][ T253] [ 7667.376167][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7667.376167][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7667.376167][ T253] ipv6_find_idev+0x102/0x170 [ 7667.376167][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7667.376167][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7667.376167][ T253] netlink_rcv_skb+0x130/0x360 [ 7667.376167][ T253] netlink_unicast+0x449/0x710 [ 7667.376167][ T253] netlink_sendmsg+0x723/0xbe0 [ 7667.376167][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7667.376167][ T253] ___sys_sendmsg+0xee/0x170 [ 7667.376167][ T253] __sys_sendmsg+0xcd/0x170 [ 7667.376167][ T253] do_syscall_64+0xc6/0x1e0 [ 7667.376167][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7667.376167][ T253] [ 7667.378267][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7667.378267][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7667.378267][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7667.378267][ T253] ipv6_find_idev+0x102/0x170 [ 7667.378267][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7667.378267][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7667.378267][ T253] netlink_rcv_skb+0x130/0x360 [ 7667.378267][ T253] netlink_unicast+0x449/0x710 [ 7667.378267][ T253] netlink_sendmsg+0x723/0xbe0 [ 7667.378267][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7667.378267][ T253] ___sys_sendmsg+0xee/0x170 [ 7667.378267][ T253] __sys_sendmsg+0xcd/0x170 [ 7667.378267][ T253] do_syscall_64+0xc6/0x1e0 [ 7667.378267][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7667.378267][ T253] [ 7677.618250][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7677.618817][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7677.618817][ T253] dst_init+0x84/0x4a0 [ 7677.618817][ T253] dst_alloc+0x97/0x150 [ 7677.618817][ T253] ip6_dst_alloc+0x23/0x90 [ 7677.618817][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7677.618817][ T253] ip6_pol_route+0x56f/0x840 [ 7677.618817][ T253] fib6_rule_lookup+0x334/0x630 [ 7677.618817][ T253] ip6_route_output_flags+0x259/0x480 [ 7677.618817][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7677.618817][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7677.618817][ T253] netlink_rcv_skb+0x130/0x360 [ 7677.618817][ T253] netlink_unicast+0x449/0x710 [ 7677.618817][ T253] netlink_sendmsg+0x723/0xbe0 [ 7677.618817][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7677.618817][ T253] ___sys_sendmsg+0xee/0x170 [ 7677.618817][ T253] __sys_sendmsg+0xcd/0x170 [ 7677.618817][ T253] do_syscall_64+0xc6/0x1e0 [ 7677.618817][ T253] [ 7677.621063][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7677.621063][ T253] netdev_get_by_index+0x5e/0x80 [ 7677.621063][ T253] fib6_nh_init+0x3d8/0x1580 [ 7677.621063][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7677.621063][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7677.621063][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7677.621063][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7677.621063][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7677.621063][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7677.621063][ T253] addrconf_dad_begin+0x310/0x670 [ 7677.621063][ T253] addrconf_dad_work+0x10b/0xab0 [ 7677.621063][ T253] process_one_work+0x84d/0x18a0 [ 7677.621063][ T253] worker_thread+0x587/0xd30 [ 7677.621063][ T253] kthread+0x28a/0x350 [ 7677.621063][ T253] ret_from_fork+0x31/0x70 [ 7677.621063][ T253] ret_from_fork_asm+0x1a/0x30 [ 7677.621063][ T253] [ 7677.623304][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7677.623304][ T253] netdev_get_by_index+0x5e/0x80 [ 7677.623304][ T253] fib6_nh_init+0x3d8/0x1580 [ 7677.623304][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7677.623304][ T253] ip6_route_add+0x1c/0x140 [ 7677.623304][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7677.623304][ T253] inet6_addr_add+0x4f8/0xa40 [ 7677.623304][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7677.623304][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7677.623304][ T253] netlink_rcv_skb+0x130/0x360 [ 7677.623304][ T253] netlink_unicast+0x449/0x710 [ 7677.623304][ T253] netlink_sendmsg+0x723/0xbe0 [ 7677.623304][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7677.623304][ T253] ___sys_sendmsg+0xee/0x170 [ 7677.623304][ T253] __sys_sendmsg+0xcd/0x170 [ 7677.623304][ T253] do_syscall_64+0xc6/0x1e0 [ 7677.623304][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7677.623304][ T253] [ 7677.625679][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7677.625679][ T253] netdev_get_by_index+0x5e/0x80 [ 7677.625679][ T253] fib6_nh_init+0x3d8/0x1580 [ 7677.625679][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7677.625679][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7677.625679][ T253] ipv6_add_addr+0x411/0x2000 [ 7677.625679][ T253] inet6_addr_add+0x30e/0xa40 [ 7677.625679][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7677.625679][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7677.625679][ T253] netlink_rcv_skb+0x130/0x360 [ 7677.625679][ T253] netlink_unicast+0x449/0x710 [ 7677.625679][ T253] netlink_sendmsg+0x723/0xbe0 [ 7677.625679][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7677.625679][ T253] ___sys_sendmsg+0xee/0x170 [ 7677.625679][ T253] __sys_sendmsg+0xcd/0x170 [ 7677.625679][ T253] do_syscall_64+0xc6/0x1e0 [ 7677.625679][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7677.625679][ T253] [ 7677.627942][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7677.627942][ T253] netdev_get_by_index+0x5e/0x80 [ 7677.627942][ T253] fib6_nh_init+0x3d8/0x1580 [ 7677.627942][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7677.627942][ T253] ip6_route_add+0x1c/0x140 [ 7677.627942][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7677.627942][ T253] addrconf_add_dev+0xe2/0x170 [ 7677.627942][ T253] inet6_addr_add+0x12f/0xa40 [ 7677.627942][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7677.627942][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7677.627942][ T253] netlink_rcv_skb+0x130/0x360 [ 7677.627942][ T253] netlink_unicast+0x449/0x710 [ 7677.627942][ T253] netlink_sendmsg+0x723/0xbe0 [ 7677.627942][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7677.627942][ T253] ___sys_sendmsg+0xee/0x170 [ 7677.627942][ T253] __sys_sendmsg+0xcd/0x170 [ 7677.627942][ T253] do_syscall_64+0xc6/0x1e0 [ 7677.627942][ T253] [ 7677.630206][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7677.630206][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7677.630206][ T253] ipv6_find_idev+0x102/0x170 [ 7677.630206][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7677.630206][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7677.630206][ T253] netlink_rcv_skb+0x130/0x360 [ 7677.630206][ T253] netlink_unicast+0x449/0x710 [ 7677.630206][ T253] netlink_sendmsg+0x723/0xbe0 [ 7677.630206][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7677.630206][ T253] ___sys_sendmsg+0xee/0x170 [ 7677.630206][ T253] __sys_sendmsg+0xcd/0x170 [ 7677.630206][ T253] do_syscall_64+0xc6/0x1e0 [ 7677.630206][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7677.630206][ T253] [ 7677.632047][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7677.632047][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7677.632047][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7677.632047][ T253] ipv6_find_idev+0x102/0x170 [ 7677.632047][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7677.632047][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7677.632047][ T253] netlink_rcv_skb+0x130/0x360 [ 7677.632047][ T253] netlink_unicast+0x449/0x710 [ 7677.632047][ T253] netlink_sendmsg+0x723/0xbe0 [ 7677.632047][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7677.632047][ T253] ___sys_sendmsg+0xee/0x170 [ 7677.632047][ T253] __sys_sendmsg+0xcd/0x170 [ 7677.632047][ T253] do_syscall_64+0xc6/0x1e0 [ 7677.632047][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7677.632047][ T253] [ 7687.874269][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7687.874913][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7687.874913][ T253] dst_init+0x84/0x4a0 [ 7687.874913][ T253] dst_alloc+0x97/0x150 [ 7687.874913][ T253] ip6_dst_alloc+0x23/0x90 [ 7687.874913][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7687.874913][ T253] ip6_pol_route+0x56f/0x840 [ 7687.874913][ T253] fib6_rule_lookup+0x334/0x630 [ 7687.874913][ T253] ip6_route_output_flags+0x259/0x480 [ 7687.874913][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7687.874913][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7687.874913][ T253] netlink_rcv_skb+0x130/0x360 [ 7687.874913][ T253] netlink_unicast+0x449/0x710 [ 7687.874913][ T253] netlink_sendmsg+0x723/0xbe0 [ 7687.874913][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7687.874913][ T253] ___sys_sendmsg+0xee/0x170 [ 7687.874913][ T253] __sys_sendmsg+0xcd/0x170 [ 7687.874913][ T253] do_syscall_64+0xc6/0x1e0 [ 7687.874913][ T253] [ 7687.878250][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7687.878250][ T253] netdev_get_by_index+0x5e/0x80 [ 7687.878250][ T253] fib6_nh_init+0x3d8/0x1580 [ 7687.878250][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7687.878250][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7687.878250][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7687.878250][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7687.878250][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7687.878250][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7687.878250][ T253] addrconf_dad_begin+0x310/0x670 [ 7687.878250][ T253] addrconf_dad_work+0x10b/0xab0 [ 7687.878250][ T253] process_one_work+0x84d/0x18a0 [ 7687.878250][ T253] worker_thread+0x587/0xd30 [ 7687.878250][ T253] kthread+0x28a/0x350 [ 7687.878250][ T253] ret_from_fork+0x31/0x70 [ 7687.878250][ T253] ret_from_fork_asm+0x1a/0x30 [ 7687.878250][ T253] [ 7687.881664][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7687.881664][ T253] netdev_get_by_index+0x5e/0x80 [ 7687.881664][ T253] fib6_nh_init+0x3d8/0x1580 [ 7687.881664][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7687.881664][ T253] ip6_route_add+0x1c/0x140 [ 7687.881664][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7687.881664][ T253] inet6_addr_add+0x4f8/0xa40 [ 7687.881664][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7687.881664][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7687.881664][ T253] netlink_rcv_skb+0x130/0x360 [ 7687.881664][ T253] netlink_unicast+0x449/0x710 [ 7687.881664][ T253] netlink_sendmsg+0x723/0xbe0 [ 7687.881664][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7687.881664][ T253] ___sys_sendmsg+0xee/0x170 [ 7687.881664][ T253] __sys_sendmsg+0xcd/0x170 [ 7687.881664][ T253] do_syscall_64+0xc6/0x1e0 [ 7687.881664][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7687.881664][ T253] [ 7687.885275][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7687.885275][ T253] netdev_get_by_index+0x5e/0x80 [ 7687.885275][ T253] fib6_nh_init+0x3d8/0x1580 [ 7687.885275][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7687.885275][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7687.885275][ T253] ipv6_add_addr+0x411/0x2000 [ 7687.885275][ T253] inet6_addr_add+0x30e/0xa40 [ 7687.885275][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7687.885275][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7687.885275][ T253] netlink_rcv_skb+0x130/0x360 [ 7687.885275][ T253] netlink_unicast+0x449/0x710 [ 7687.885275][ T253] netlink_sendmsg+0x723/0xbe0 [ 7687.885275][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7687.885275][ T253] ___sys_sendmsg+0xee/0x170 [ 7687.885275][ T253] __sys_sendmsg+0xcd/0x170 [ 7687.885275][ T253] do_syscall_64+0xc6/0x1e0 [ 7687.885275][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7687.885275][ T253] [ 7687.888928][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7687.888928][ T253] netdev_get_by_index+0x5e/0x80 [ 7687.888928][ T253] fib6_nh_init+0x3d8/0x1580 [ 7687.888928][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7687.888928][ T253] ip6_route_add+0x1c/0x140 [ 7687.888928][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7687.888928][ T253] addrconf_add_dev+0xe2/0x170 [ 7687.888928][ T253] inet6_addr_add+0x12f/0xa40 [ 7687.888928][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7687.888928][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7687.888928][ T253] netlink_rcv_skb+0x130/0x360 [ 7687.888928][ T253] netlink_unicast+0x449/0x710 [ 7687.888928][ T253] netlink_sendmsg+0x723/0xbe0 [ 7687.888928][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7687.888928][ T253] ___sys_sendmsg+0xee/0x170 [ 7687.888928][ T253] __sys_sendmsg+0xcd/0x170 [ 7687.888928][ T253] do_syscall_64+0xc6/0x1e0 [ 7687.888928][ T253] [ 7687.892475][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7687.892475][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7687.892475][ T253] ipv6_find_idev+0x102/0x170 [ 7687.892475][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7687.892475][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7687.892475][ T253] netlink_rcv_skb+0x130/0x360 [ 7687.892475][ T253] netlink_unicast+0x449/0x710 [ 7687.892475][ T253] netlink_sendmsg+0x723/0xbe0 [ 7687.892475][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7687.892475][ T253] ___sys_sendmsg+0xee/0x170 [ 7687.892475][ T253] __sys_sendmsg+0xcd/0x170 [ 7687.892475][ T253] do_syscall_64+0xc6/0x1e0 [ 7687.892475][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7687.892475][ T253] [ 7687.895287][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7687.895287][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7687.895287][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7687.895287][ T253] ipv6_find_idev+0x102/0x170 [ 7687.895287][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7687.895287][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7687.895287][ T253] netlink_rcv_skb+0x130/0x360 [ 7687.895287][ T253] netlink_unicast+0x449/0x710 [ 7687.895287][ T253] netlink_sendmsg+0x723/0xbe0 [ 7687.895287][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7687.895287][ T253] ___sys_sendmsg+0xee/0x170 [ 7687.895287][ T253] __sys_sendmsg+0xcd/0x170 [ 7687.895287][ T253] do_syscall_64+0xc6/0x1e0 [ 7687.895287][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7687.895287][ T253] [ 7698.138382][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7698.138880][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7698.138880][ T253] dst_init+0x84/0x4a0 [ 7698.138880][ T253] dst_alloc+0x97/0x150 [ 7698.138880][ T253] ip6_dst_alloc+0x23/0x90 [ 7698.138880][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7698.138880][ T253] ip6_pol_route+0x56f/0x840 [ 7698.138880][ T253] fib6_rule_lookup+0x334/0x630 [ 7698.138880][ T253] ip6_route_output_flags+0x259/0x480 [ 7698.138880][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7698.138880][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7698.138880][ T253] netlink_rcv_skb+0x130/0x360 [ 7698.138880][ T253] netlink_unicast+0x449/0x710 [ 7698.138880][ T253] netlink_sendmsg+0x723/0xbe0 [ 7698.138880][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7698.138880][ T253] ___sys_sendmsg+0xee/0x170 [ 7698.138880][ T253] __sys_sendmsg+0xcd/0x170 [ 7698.138880][ T253] do_syscall_64+0xc6/0x1e0 [ 7698.138880][ T253] [ 7698.141539][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7698.141539][ T253] netdev_get_by_index+0x5e/0x80 [ 7698.141539][ T253] fib6_nh_init+0x3d8/0x1580 [ 7698.141539][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7698.141539][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7698.141539][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7698.141539][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7698.141539][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7698.141539][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7698.141539][ T253] addrconf_dad_begin+0x310/0x670 [ 7698.141539][ T253] addrconf_dad_work+0x10b/0xab0 [ 7698.141539][ T253] process_one_work+0x84d/0x18a0 [ 7698.141539][ T253] worker_thread+0x587/0xd30 [ 7698.141539][ T253] kthread+0x28a/0x350 [ 7698.141539][ T253] ret_from_fork+0x31/0x70 [ 7698.141539][ T253] ret_from_fork_asm+0x1a/0x30 [ 7698.141539][ T253] [ 7698.144154][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7698.144154][ T253] netdev_get_by_index+0x5e/0x80 [ 7698.144154][ T253] fib6_nh_init+0x3d8/0x1580 [ 7698.144154][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7698.144154][ T253] ip6_route_add+0x1c/0x140 [ 7698.144154][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7698.144154][ T253] inet6_addr_add+0x4f8/0xa40 [ 7698.144154][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7698.144154][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7698.144154][ T253] netlink_rcv_skb+0x130/0x360 [ 7698.144154][ T253] netlink_unicast+0x449/0x710 [ 7698.144154][ T253] netlink_sendmsg+0x723/0xbe0 [ 7698.144154][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7698.144154][ T253] ___sys_sendmsg+0xee/0x170 [ 7698.144154][ T253] __sys_sendmsg+0xcd/0x170 [ 7698.144154][ T253] do_syscall_64+0xc6/0x1e0 [ 7698.144154][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7698.144154][ T253] [ 7698.146867][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7698.146867][ T253] netdev_get_by_index+0x5e/0x80 [ 7698.146867][ T253] fib6_nh_init+0x3d8/0x1580 [ 7698.146867][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7698.146867][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7698.146867][ T253] ipv6_add_addr+0x411/0x2000 [ 7698.146867][ T253] inet6_addr_add+0x30e/0xa40 [ 7698.146867][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7698.146867][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7698.146867][ T253] netlink_rcv_skb+0x130/0x360 [ 7698.146867][ T253] netlink_unicast+0x449/0x710 [ 7698.146867][ T253] netlink_sendmsg+0x723/0xbe0 [ 7698.146867][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7698.146867][ T253] ___sys_sendmsg+0xee/0x170 [ 7698.146867][ T253] __sys_sendmsg+0xcd/0x170 [ 7698.146867][ T253] do_syscall_64+0xc6/0x1e0 [ 7698.146867][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7698.146867][ T253] [ 7698.149577][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7698.149577][ T253] netdev_get_by_index+0x5e/0x80 [ 7698.149577][ T253] fib6_nh_init+0x3d8/0x1580 [ 7698.149577][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7698.149577][ T253] ip6_route_add+0x1c/0x140 [ 7698.149577][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7698.149577][ T253] addrconf_add_dev+0xe2/0x170 [ 7698.149577][ T253] inet6_addr_add+0x12f/0xa40 [ 7698.149577][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7698.149577][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7698.149577][ T253] netlink_rcv_skb+0x130/0x360 [ 7698.149577][ T253] netlink_unicast+0x449/0x710 [ 7698.149577][ T253] netlink_sendmsg+0x723/0xbe0 [ 7698.149577][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7698.149577][ T253] ___sys_sendmsg+0xee/0x170 [ 7698.149577][ T253] __sys_sendmsg+0xcd/0x170 [ 7698.149577][ T253] do_syscall_64+0xc6/0x1e0 [ 7698.149577][ T253] [ 7698.152244][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7698.152244][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7698.152244][ T253] ipv6_find_idev+0x102/0x170 [ 7698.152244][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7698.152244][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7698.152244][ T253] netlink_rcv_skb+0x130/0x360 [ 7698.152244][ T253] netlink_unicast+0x449/0x710 [ 7698.152244][ T253] netlink_sendmsg+0x723/0xbe0 [ 7698.152244][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7698.152244][ T253] ___sys_sendmsg+0xee/0x170 [ 7698.152244][ T253] __sys_sendmsg+0xcd/0x170 [ 7698.152244][ T253] do_syscall_64+0xc6/0x1e0 [ 7698.152244][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7698.152244][ T253] [ 7698.154342][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7698.154342][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7698.154342][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7698.154342][ T253] ipv6_find_idev+0x102/0x170 [ 7698.154342][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7698.154342][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7698.154342][ T253] netlink_rcv_skb+0x130/0x360 [ 7698.154342][ T253] netlink_unicast+0x449/0x710 [ 7698.154342][ T253] netlink_sendmsg+0x723/0xbe0 [ 7698.154342][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7698.154342][ T253] ___sys_sendmsg+0xee/0x170 [ 7698.154342][ T253] __sys_sendmsg+0xcd/0x170 [ 7698.154342][ T253] do_syscall_64+0xc6/0x1e0 [ 7698.154342][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7698.154342][ T253] [ 7708.394343][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7708.394838][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7708.394838][ T253] dst_init+0x84/0x4a0 [ 7708.394838][ T253] dst_alloc+0x97/0x150 [ 7708.394838][ T253] ip6_dst_alloc+0x23/0x90 [ 7708.394838][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7708.394838][ T253] ip6_pol_route+0x56f/0x840 [ 7708.394838][ T253] fib6_rule_lookup+0x334/0x630 [ 7708.394838][ T253] ip6_route_output_flags+0x259/0x480 [ 7708.394838][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7708.394838][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7708.394838][ T253] netlink_rcv_skb+0x130/0x360 [ 7708.394838][ T253] netlink_unicast+0x449/0x710 [ 7708.394838][ T253] netlink_sendmsg+0x723/0xbe0 [ 7708.394838][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7708.394838][ T253] ___sys_sendmsg+0xee/0x170 [ 7708.394838][ T253] __sys_sendmsg+0xcd/0x170 [ 7708.394838][ T253] do_syscall_64+0xc6/0x1e0 [ 7708.394838][ T253] [ 7708.397492][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7708.397492][ T253] netdev_get_by_index+0x5e/0x80 [ 7708.397492][ T253] fib6_nh_init+0x3d8/0x1580 [ 7708.397492][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7708.397492][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7708.397492][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7708.397492][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7708.397492][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7708.397492][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7708.397492][ T253] addrconf_dad_begin+0x310/0x670 [ 7708.397492][ T253] addrconf_dad_work+0x10b/0xab0 [ 7708.397492][ T253] process_one_work+0x84d/0x18a0 [ 7708.397492][ T253] worker_thread+0x587/0xd30 [ 7708.397492][ T253] kthread+0x28a/0x350 [ 7708.397492][ T253] ret_from_fork+0x31/0x70 [ 7708.397492][ T253] ret_from_fork_asm+0x1a/0x30 [ 7708.397492][ T253] [ 7708.400085][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7708.400085][ T253] netdev_get_by_index+0x5e/0x80 [ 7708.400085][ T253] fib6_nh_init+0x3d8/0x1580 [ 7708.400085][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7708.400085][ T253] ip6_route_add+0x1c/0x140 [ 7708.400085][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7708.400085][ T253] inet6_addr_add+0x4f8/0xa40 [ 7708.400085][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7708.400085][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7708.400085][ T253] netlink_rcv_skb+0x130/0x360 [ 7708.400085][ T253] netlink_unicast+0x449/0x710 [ 7708.400085][ T253] netlink_sendmsg+0x723/0xbe0 [ 7708.400085][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7708.400085][ T253] ___sys_sendmsg+0xee/0x170 [ 7708.400085][ T253] __sys_sendmsg+0xcd/0x170 [ 7708.400085][ T253] do_syscall_64+0xc6/0x1e0 [ 7708.400085][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7708.400085][ T253] [ 7708.402806][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7708.402806][ T253] netdev_get_by_index+0x5e/0x80 [ 7708.402806][ T253] fib6_nh_init+0x3d8/0x1580 [ 7708.402806][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7708.402806][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7708.402806][ T253] ipv6_add_addr+0x411/0x2000 [ 7708.402806][ T253] inet6_addr_add+0x30e/0xa40 [ 7708.402806][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7708.402806][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7708.402806][ T253] netlink_rcv_skb+0x130/0x360 [ 7708.402806][ T253] netlink_unicast+0x449/0x710 [ 7708.402806][ T253] netlink_sendmsg+0x723/0xbe0 [ 7708.402806][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7708.402806][ T253] ___sys_sendmsg+0xee/0x170 [ 7708.402806][ T253] __sys_sendmsg+0xcd/0x170 [ 7708.402806][ T253] do_syscall_64+0xc6/0x1e0 [ 7708.402806][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7708.402806][ T253] [ 7708.405593][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7708.405593][ T253] netdev_get_by_index+0x5e/0x80 [ 7708.405593][ T253] fib6_nh_init+0x3d8/0x1580 [ 7708.405593][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7708.405593][ T253] ip6_route_add+0x1c/0x140 [ 7708.405593][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7708.405593][ T253] addrconf_add_dev+0xe2/0x170 [ 7708.405593][ T253] inet6_addr_add+0x12f/0xa40 [ 7708.405593][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7708.405593][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7708.405593][ T253] netlink_rcv_skb+0x130/0x360 [ 7708.405593][ T253] netlink_unicast+0x449/0x710 [ 7708.405593][ T253] netlink_sendmsg+0x723/0xbe0 [ 7708.405593][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7708.405593][ T253] ___sys_sendmsg+0xee/0x170 [ 7708.405593][ T253] __sys_sendmsg+0xcd/0x170 [ 7708.405593][ T253] do_syscall_64+0xc6/0x1e0 [ 7708.405593][ T253] [ 7708.408256][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7708.408256][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7708.408256][ T253] ipv6_find_idev+0x102/0x170 [ 7708.408256][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7708.408256][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7708.408256][ T253] netlink_rcv_skb+0x130/0x360 [ 7708.408256][ T253] netlink_unicast+0x449/0x710 [ 7708.408256][ T253] netlink_sendmsg+0x723/0xbe0 [ 7708.408256][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7708.408256][ T253] ___sys_sendmsg+0xee/0x170 [ 7708.408256][ T253] __sys_sendmsg+0xcd/0x170 [ 7708.408256][ T253] do_syscall_64+0xc6/0x1e0 [ 7708.408256][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7708.408256][ T253] [ 7708.410338][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7708.410338][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7708.410338][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7708.410338][ T253] ipv6_find_idev+0x102/0x170 [ 7708.410338][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7708.410338][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7708.410338][ T253] netlink_rcv_skb+0x130/0x360 [ 7708.410338][ T253] netlink_unicast+0x449/0x710 [ 7708.410338][ T253] netlink_sendmsg+0x723/0xbe0 [ 7708.410338][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7708.410338][ T253] ___sys_sendmsg+0xee/0x170 [ 7708.410338][ T253] __sys_sendmsg+0xcd/0x170 [ 7708.410338][ T253] do_syscall_64+0xc6/0x1e0 [ 7708.410338][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7708.410338][ T253] [ 7718.658270][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7718.658859][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7718.658859][ T253] dst_init+0x84/0x4a0 [ 7718.658859][ T253] dst_alloc+0x97/0x150 [ 7718.658859][ T253] ip6_dst_alloc+0x23/0x90 [ 7718.658859][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7718.658859][ T253] ip6_pol_route+0x56f/0x840 [ 7718.658859][ T253] fib6_rule_lookup+0x334/0x630 [ 7718.658859][ T253] ip6_route_output_flags+0x259/0x480 [ 7718.658859][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7718.658859][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7718.658859][ T253] netlink_rcv_skb+0x130/0x360 [ 7718.658859][ T253] netlink_unicast+0x449/0x710 [ 7718.658859][ T253] netlink_sendmsg+0x723/0xbe0 [ 7718.658859][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7718.658859][ T253] ___sys_sendmsg+0xee/0x170 [ 7718.658859][ T253] __sys_sendmsg+0xcd/0x170 [ 7718.658859][ T253] do_syscall_64+0xc6/0x1e0 [ 7718.658859][ T253] [ 7718.661146][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7718.661146][ T253] netdev_get_by_index+0x5e/0x80 [ 7718.661146][ T253] fib6_nh_init+0x3d8/0x1580 [ 7718.661146][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7718.661146][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7718.661146][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7718.661146][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7718.661146][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7718.661146][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7718.661146][ T253] addrconf_dad_begin+0x310/0x670 [ 7718.661146][ T253] addrconf_dad_work+0x10b/0xab0 [ 7718.661146][ T253] process_one_work+0x84d/0x18a0 [ 7718.661146][ T253] worker_thread+0x587/0xd30 [ 7718.661146][ T253] kthread+0x28a/0x350 [ 7718.661146][ T253] ret_from_fork+0x31/0x70 [ 7718.661146][ T253] ret_from_fork_asm+0x1a/0x30 [ 7718.661146][ T253] [ 7718.663444][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7718.663444][ T253] netdev_get_by_index+0x5e/0x80 [ 7718.663444][ T253] fib6_nh_init+0x3d8/0x1580 [ 7718.663444][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7718.663444][ T253] ip6_route_add+0x1c/0x140 [ 7718.663444][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7718.663444][ T253] inet6_addr_add+0x4f8/0xa40 [ 7718.663444][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7718.663444][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7718.663444][ T253] netlink_rcv_skb+0x130/0x360 [ 7718.663444][ T253] netlink_unicast+0x449/0x710 [ 7718.663444][ T253] netlink_sendmsg+0x723/0xbe0 [ 7718.663444][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7718.663444][ T253] ___sys_sendmsg+0xee/0x170 [ 7718.663444][ T253] __sys_sendmsg+0xcd/0x170 [ 7718.663444][ T253] do_syscall_64+0xc6/0x1e0 [ 7718.663444][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7718.663444][ T253] [ 7718.665726][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7718.665726][ T253] netdev_get_by_index+0x5e/0x80 [ 7718.665726][ T253] fib6_nh_init+0x3d8/0x1580 [ 7718.665726][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7718.665726][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7718.665726][ T253] ipv6_add_addr+0x411/0x2000 [ 7718.665726][ T253] inet6_addr_add+0x30e/0xa40 [ 7718.665726][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7718.665726][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7718.665726][ T253] netlink_rcv_skb+0x130/0x360 [ 7718.665726][ T253] netlink_unicast+0x449/0x710 [ 7718.665726][ T253] netlink_sendmsg+0x723/0xbe0 [ 7718.665726][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7718.665726][ T253] ___sys_sendmsg+0xee/0x170 [ 7718.665726][ T253] __sys_sendmsg+0xcd/0x170 [ 7718.665726][ T253] do_syscall_64+0xc6/0x1e0 [ 7718.665726][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7718.665726][ T253] [ 7718.668051][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7718.668051][ T253] netdev_get_by_index+0x5e/0x80 [ 7718.668051][ T253] fib6_nh_init+0x3d8/0x1580 [ 7718.668051][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7718.668051][ T253] ip6_route_add+0x1c/0x140 [ 7718.668051][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7718.668051][ T253] addrconf_add_dev+0xe2/0x170 [ 7718.668051][ T253] inet6_addr_add+0x12f/0xa40 [ 7718.668051][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7718.668051][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7718.668051][ T253] netlink_rcv_skb+0x130/0x360 [ 7718.668051][ T253] netlink_unicast+0x449/0x710 [ 7718.668051][ T253] netlink_sendmsg+0x723/0xbe0 [ 7718.668051][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7718.668051][ T253] ___sys_sendmsg+0xee/0x170 [ 7718.668051][ T253] __sys_sendmsg+0xcd/0x170 [ 7718.668051][ T253] do_syscall_64+0xc6/0x1e0 [ 7718.668051][ T253] [ 7718.670375][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7718.670375][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7718.670375][ T253] ipv6_find_idev+0x102/0x170 [ 7718.670375][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7718.670375][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7718.670375][ T253] netlink_rcv_skb+0x130/0x360 [ 7718.670375][ T253] netlink_unicast+0x449/0x710 [ 7718.670375][ T253] netlink_sendmsg+0x723/0xbe0 [ 7718.670375][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7718.670375][ T253] ___sys_sendmsg+0xee/0x170 [ 7718.670375][ T253] __sys_sendmsg+0xcd/0x170 [ 7718.670375][ T253] do_syscall_64+0xc6/0x1e0 [ 7718.670375][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7718.670375][ T253] [ 7718.672208][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7718.672208][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7718.672208][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7718.672208][ T253] ipv6_find_idev+0x102/0x170 [ 7718.672208][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7718.672208][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7718.672208][ T253] netlink_rcv_skb+0x130/0x360 [ 7718.672208][ T253] netlink_unicast+0x449/0x710 [ 7718.672208][ T253] netlink_sendmsg+0x723/0xbe0 [ 7718.672208][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7718.672208][ T253] ___sys_sendmsg+0xee/0x170 [ 7718.672208][ T253] __sys_sendmsg+0xcd/0x170 [ 7718.672208][ T253] do_syscall_64+0xc6/0x1e0 [ 7718.672208][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7718.672208][ T253] [ 7728.898253][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7728.898899][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7728.898899][ T253] dst_init+0x84/0x4a0 [ 7728.898899][ T253] dst_alloc+0x97/0x150 [ 7728.898899][ T253] ip6_dst_alloc+0x23/0x90 [ 7728.898899][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7728.898899][ T253] ip6_pol_route+0x56f/0x840 [ 7728.898899][ T253] fib6_rule_lookup+0x334/0x630 [ 7728.898899][ T253] ip6_route_output_flags+0x259/0x480 [ 7728.898899][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7728.898899][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7728.898899][ T253] netlink_rcv_skb+0x130/0x360 [ 7728.898899][ T253] netlink_unicast+0x449/0x710 [ 7728.898899][ T253] netlink_sendmsg+0x723/0xbe0 [ 7728.898899][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7728.898899][ T253] ___sys_sendmsg+0xee/0x170 [ 7728.898899][ T253] __sys_sendmsg+0xcd/0x170 [ 7728.898899][ T253] do_syscall_64+0xc6/0x1e0 [ 7728.898899][ T253] [ 7728.902460][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7728.902460][ T253] netdev_get_by_index+0x5e/0x80 [ 7728.902460][ T253] fib6_nh_init+0x3d8/0x1580 [ 7728.902460][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7728.902460][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7728.902460][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7728.902460][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7728.902460][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7728.902460][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7728.902460][ T253] addrconf_dad_begin+0x310/0x670 [ 7728.902460][ T253] addrconf_dad_work+0x10b/0xab0 [ 7728.902460][ T253] process_one_work+0x84d/0x18a0 [ 7728.902460][ T253] worker_thread+0x587/0xd30 [ 7728.902460][ T253] kthread+0x28a/0x350 [ 7728.902460][ T253] ret_from_fork+0x31/0x70 [ 7728.902460][ T253] ret_from_fork_asm+0x1a/0x30 [ 7728.902460][ T253] [ 7728.905914][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7728.905914][ T253] netdev_get_by_index+0x5e/0x80 [ 7728.905914][ T253] fib6_nh_init+0x3d8/0x1580 [ 7728.905914][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7728.905914][ T253] ip6_route_add+0x1c/0x140 [ 7728.905914][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7728.905914][ T253] inet6_addr_add+0x4f8/0xa40 [ 7728.905914][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7728.905914][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7728.905914][ T253] netlink_rcv_skb+0x130/0x360 [ 7728.905914][ T253] netlink_unicast+0x449/0x710 [ 7728.905914][ T253] netlink_sendmsg+0x723/0xbe0 [ 7728.905914][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7728.905914][ T253] ___sys_sendmsg+0xee/0x170 [ 7728.905914][ T253] __sys_sendmsg+0xcd/0x170 [ 7728.905914][ T253] do_syscall_64+0xc6/0x1e0 [ 7728.905914][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7728.905914][ T253] [ 7728.909590][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7728.909590][ T253] netdev_get_by_index+0x5e/0x80 [ 7728.909590][ T253] fib6_nh_init+0x3d8/0x1580 [ 7728.909590][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7728.909590][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7728.909590][ T253] ipv6_add_addr+0x411/0x2000 [ 7728.909590][ T253] inet6_addr_add+0x30e/0xa40 [ 7728.909590][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7728.909590][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7728.909590][ T253] netlink_rcv_skb+0x130/0x360 [ 7728.909590][ T253] netlink_unicast+0x449/0x710 [ 7728.909590][ T253] netlink_sendmsg+0x723/0xbe0 [ 7728.909590][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7728.909590][ T253] ___sys_sendmsg+0xee/0x170 [ 7728.909590][ T253] __sys_sendmsg+0xcd/0x170 [ 7728.909590][ T253] do_syscall_64+0xc6/0x1e0 [ 7728.909590][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7728.909590][ T253] [ 7728.913219][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7728.913219][ T253] netdev_get_by_index+0x5e/0x80 [ 7728.913219][ T253] fib6_nh_init+0x3d8/0x1580 [ 7728.913219][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7728.913219][ T253] ip6_route_add+0x1c/0x140 [ 7728.913219][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7728.913219][ T253] addrconf_add_dev+0xe2/0x170 [ 7728.913219][ T253] inet6_addr_add+0x12f/0xa40 [ 7728.913219][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7728.913219][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7728.913219][ T253] netlink_rcv_skb+0x130/0x360 [ 7728.913219][ T253] netlink_unicast+0x449/0x710 [ 7728.913219][ T253] netlink_sendmsg+0x723/0xbe0 [ 7728.913219][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7728.913219][ T253] ___sys_sendmsg+0xee/0x170 [ 7728.913219][ T253] __sys_sendmsg+0xcd/0x170 [ 7728.913219][ T253] do_syscall_64+0xc6/0x1e0 [ 7728.913219][ T253] [ 7728.916568][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7728.916568][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7728.916568][ T253] ipv6_find_idev+0x102/0x170 [ 7728.916568][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7728.916568][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7728.916568][ T253] netlink_rcv_skb+0x130/0x360 [ 7728.916568][ T253] netlink_unicast+0x449/0x710 [ 7728.916568][ T253] netlink_sendmsg+0x723/0xbe0 [ 7728.916568][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7728.916568][ T253] ___sys_sendmsg+0xee/0x170 [ 7728.916568][ T253] __sys_sendmsg+0xcd/0x170 [ 7728.916568][ T253] do_syscall_64+0xc6/0x1e0 [ 7728.916568][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7728.916568][ T253] [ 7728.919611][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7728.919611][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7728.919611][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7728.919611][ T253] ipv6_find_idev+0x102/0x170 [ 7728.919611][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7728.919611][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7728.919611][ T253] netlink_rcv_skb+0x130/0x360 [ 7728.919611][ T253] netlink_unicast+0x449/0x710 [ 7728.919611][ T253] netlink_sendmsg+0x723/0xbe0 [ 7728.919611][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7728.919611][ T253] ___sys_sendmsg+0xee/0x170 [ 7728.919611][ T253] __sys_sendmsg+0xcd/0x170 [ 7728.919611][ T253] do_syscall_64+0xc6/0x1e0 [ 7728.919611][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7728.919611][ T253] [ 7739.162255][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7739.162699][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7739.162699][ T253] dst_init+0x84/0x4a0 [ 7739.162699][ T253] dst_alloc+0x97/0x150 [ 7739.162699][ T253] ip6_dst_alloc+0x23/0x90 [ 7739.162699][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7739.162699][ T253] ip6_pol_route+0x56f/0x840 [ 7739.162699][ T253] fib6_rule_lookup+0x334/0x630 [ 7739.162699][ T253] ip6_route_output_flags+0x259/0x480 [ 7739.162699][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7739.162699][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7739.162699][ T253] netlink_rcv_skb+0x130/0x360 [ 7739.162699][ T253] netlink_unicast+0x449/0x710 [ 7739.162699][ T253] netlink_sendmsg+0x723/0xbe0 [ 7739.162699][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7739.162699][ T253] ___sys_sendmsg+0xee/0x170 [ 7739.162699][ T253] __sys_sendmsg+0xcd/0x170 [ 7739.162699][ T253] do_syscall_64+0xc6/0x1e0 [ 7739.162699][ T253] [ 7739.164962][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7739.164962][ T253] netdev_get_by_index+0x5e/0x80 [ 7739.164962][ T253] fib6_nh_init+0x3d8/0x1580 [ 7739.164962][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7739.164962][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7739.164962][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7739.164962][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7739.164962][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7739.164962][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7739.164962][ T253] addrconf_dad_begin+0x310/0x670 [ 7739.164962][ T253] addrconf_dad_work+0x10b/0xab0 [ 7739.164962][ T253] process_one_work+0x84d/0x18a0 [ 7739.164962][ T253] worker_thread+0x587/0xd30 [ 7739.164962][ T253] kthread+0x28a/0x350 [ 7739.164962][ T253] ret_from_fork+0x31/0x70 [ 7739.164962][ T253] ret_from_fork_asm+0x1a/0x30 [ 7739.164962][ T253] [ 7739.167269][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7739.167269][ T253] netdev_get_by_index+0x5e/0x80 [ 7739.167269][ T253] fib6_nh_init+0x3d8/0x1580 [ 7739.167269][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7739.167269][ T253] ip6_route_add+0x1c/0x140 [ 7739.167269][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7739.167269][ T253] inet6_addr_add+0x4f8/0xa40 [ 7739.167269][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7739.167269][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7739.167269][ T253] netlink_rcv_skb+0x130/0x360 [ 7739.167269][ T253] netlink_unicast+0x449/0x710 [ 7739.167269][ T253] netlink_sendmsg+0x723/0xbe0 [ 7739.167269][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7739.167269][ T253] ___sys_sendmsg+0xee/0x170 [ 7739.167269][ T253] __sys_sendmsg+0xcd/0x170 [ 7739.167269][ T253] do_syscall_64+0xc6/0x1e0 [ 7739.167269][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7739.167269][ T253] [ 7739.169681][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7739.169681][ T253] netdev_get_by_index+0x5e/0x80 [ 7739.169681][ T253] fib6_nh_init+0x3d8/0x1580 [ 7739.169681][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7739.169681][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7739.169681][ T253] ipv6_add_addr+0x411/0x2000 [ 7739.169681][ T253] inet6_addr_add+0x30e/0xa40 [ 7739.169681][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7739.169681][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7739.169681][ T253] netlink_rcv_skb+0x130/0x360 [ 7739.169681][ T253] netlink_unicast+0x449/0x710 [ 7739.169681][ T253] netlink_sendmsg+0x723/0xbe0 [ 7739.169681][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7739.169681][ T253] ___sys_sendmsg+0xee/0x170 [ 7739.169681][ T253] __sys_sendmsg+0xcd/0x170 [ 7739.169681][ T253] do_syscall_64+0xc6/0x1e0 [ 7739.169681][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7739.169681][ T253] [ 7739.172010][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7739.172010][ T253] netdev_get_by_index+0x5e/0x80 [ 7739.172010][ T253] fib6_nh_init+0x3d8/0x1580 [ 7739.172010][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7739.172010][ T253] ip6_route_add+0x1c/0x140 [ 7739.172010][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7739.172010][ T253] addrconf_add_dev+0xe2/0x170 [ 7739.172010][ T253] inet6_addr_add+0x12f/0xa40 [ 7739.172010][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7739.172010][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7739.172010][ T253] netlink_rcv_skb+0x130/0x360 [ 7739.172010][ T253] netlink_unicast+0x449/0x710 [ 7739.172010][ T253] netlink_sendmsg+0x723/0xbe0 [ 7739.172010][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7739.172010][ T253] ___sys_sendmsg+0xee/0x170 [ 7739.172010][ T253] __sys_sendmsg+0xcd/0x170 [ 7739.172010][ T253] do_syscall_64+0xc6/0x1e0 [ 7739.172010][ T253] [ 7739.174378][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7739.174378][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7739.174378][ T253] ipv6_find_idev+0x102/0x170 [ 7739.174378][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7739.174378][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7739.174378][ T253] netlink_rcv_skb+0x130/0x360 [ 7739.174378][ T253] netlink_unicast+0x449/0x710 [ 7739.174378][ T253] netlink_sendmsg+0x723/0xbe0 [ 7739.174378][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7739.174378][ T253] ___sys_sendmsg+0xee/0x170 [ 7739.174378][ T253] __sys_sendmsg+0xcd/0x170 [ 7739.174378][ T253] do_syscall_64+0xc6/0x1e0 [ 7739.174378][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7739.174378][ T253] [ 7739.176338][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7739.176338][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7739.176338][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7739.176338][ T253] ipv6_find_idev+0x102/0x170 [ 7739.176338][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7739.176338][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7739.176338][ T253] netlink_rcv_skb+0x130/0x360 [ 7739.176338][ T253] netlink_unicast+0x449/0x710 [ 7739.176338][ T253] netlink_sendmsg+0x723/0xbe0 [ 7739.176338][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7739.176338][ T253] ___sys_sendmsg+0xee/0x170 [ 7739.176338][ T253] __sys_sendmsg+0xcd/0x170 [ 7739.176338][ T253] do_syscall_64+0xc6/0x1e0 [ 7739.176338][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7739.176338][ T253] [ 7749.306282][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7749.306777][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7749.306777][ T253] dst_init+0x84/0x4a0 [ 7749.306777][ T253] dst_alloc+0x97/0x150 [ 7749.306777][ T253] ip6_dst_alloc+0x23/0x90 [ 7749.306777][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7749.306777][ T253] ip6_pol_route+0x56f/0x840 [ 7749.306777][ T253] fib6_rule_lookup+0x334/0x630 [ 7749.306777][ T253] ip6_route_output_flags+0x259/0x480 [ 7749.306777][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7749.306777][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7749.306777][ T253] netlink_rcv_skb+0x130/0x360 [ 7749.306777][ T253] netlink_unicast+0x449/0x710 [ 7749.306777][ T253] netlink_sendmsg+0x723/0xbe0 [ 7749.306777][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7749.306777][ T253] ___sys_sendmsg+0xee/0x170 [ 7749.306777][ T253] __sys_sendmsg+0xcd/0x170 [ 7749.306777][ T253] do_syscall_64+0xc6/0x1e0 [ 7749.306777][ T253] [ 7749.308960][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7749.308960][ T253] netdev_get_by_index+0x5e/0x80 [ 7749.308960][ T253] fib6_nh_init+0x3d8/0x1580 [ 7749.308960][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7749.308960][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7749.308960][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7749.308960][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7749.308960][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7749.308960][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7749.308960][ T253] addrconf_dad_begin+0x310/0x670 [ 7749.308960][ T253] addrconf_dad_work+0x10b/0xab0 [ 7749.308960][ T253] process_one_work+0x84d/0x18a0 [ 7749.308960][ T253] worker_thread+0x587/0xd30 [ 7749.308960][ T253] kthread+0x28a/0x350 [ 7749.308960][ T253] ret_from_fork+0x31/0x70 [ 7749.308960][ T253] ret_from_fork_asm+0x1a/0x30 [ 7749.308960][ T253] [ 7749.311105][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7749.311105][ T253] netdev_get_by_index+0x5e/0x80 [ 7749.311105][ T253] fib6_nh_init+0x3d8/0x1580 [ 7749.311105][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7749.311105][ T253] ip6_route_add+0x1c/0x140 [ 7749.311105][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7749.311105][ T253] inet6_addr_add+0x4f8/0xa40 [ 7749.311105][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7749.311105][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7749.311105][ T253] netlink_rcv_skb+0x130/0x360 [ 7749.311105][ T253] netlink_unicast+0x449/0x710 [ 7749.311105][ T253] netlink_sendmsg+0x723/0xbe0 [ 7749.311105][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7749.311105][ T253] ___sys_sendmsg+0xee/0x170 [ 7749.311105][ T253] __sys_sendmsg+0xcd/0x170 [ 7749.311105][ T253] do_syscall_64+0xc6/0x1e0 [ 7749.311105][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7749.311105][ T253] [ 7749.313351][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7749.313351][ T253] netdev_get_by_index+0x5e/0x80 [ 7749.313351][ T253] fib6_nh_init+0x3d8/0x1580 [ 7749.313351][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7749.313351][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7749.313351][ T253] ipv6_add_addr+0x411/0x2000 [ 7749.313351][ T253] inet6_addr_add+0x30e/0xa40 [ 7749.313351][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7749.313351][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7749.313351][ T253] netlink_rcv_skb+0x130/0x360 [ 7749.313351][ T253] netlink_unicast+0x449/0x710 [ 7749.313351][ T253] netlink_sendmsg+0x723/0xbe0 [ 7749.313351][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7749.313351][ T253] ___sys_sendmsg+0xee/0x170 [ 7749.313351][ T253] __sys_sendmsg+0xcd/0x170 [ 7749.313351][ T253] do_syscall_64+0xc6/0x1e0 [ 7749.313351][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7749.313351][ T253] [ 7749.315597][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7749.315597][ T253] netdev_get_by_index+0x5e/0x80 [ 7749.315597][ T253] fib6_nh_init+0x3d8/0x1580 [ 7749.315597][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7749.315597][ T253] ip6_route_add+0x1c/0x140 [ 7749.315597][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7749.315597][ T253] addrconf_add_dev+0xe2/0x170 [ 7749.315597][ T253] inet6_addr_add+0x12f/0xa40 [ 7749.315597][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7749.315597][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7749.315597][ T253] netlink_rcv_skb+0x130/0x360 [ 7749.315597][ T253] netlink_unicast+0x449/0x710 [ 7749.315597][ T253] netlink_sendmsg+0x723/0xbe0 [ 7749.315597][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7749.315597][ T253] ___sys_sendmsg+0xee/0x170 [ 7749.315597][ T253] __sys_sendmsg+0xcd/0x170 [ 7749.315597][ T253] do_syscall_64+0xc6/0x1e0 [ 7749.315597][ T253] [ 7749.317797][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7749.317797][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7749.317797][ T253] ipv6_find_idev+0x102/0x170 [ 7749.317797][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7749.317797][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7749.317797][ T253] netlink_rcv_skb+0x130/0x360 [ 7749.317797][ T253] netlink_unicast+0x449/0x710 [ 7749.317797][ T253] netlink_sendmsg+0x723/0xbe0 [ 7749.317797][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7749.317797][ T253] ___sys_sendmsg+0xee/0x170 [ 7749.317797][ T253] __sys_sendmsg+0xcd/0x170 [ 7749.317797][ T253] do_syscall_64+0xc6/0x1e0 [ 7749.317797][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7749.317797][ T253] [ 7749.319523][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7749.319523][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7749.319523][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7749.319523][ T253] ipv6_find_idev+0x102/0x170 [ 7749.319523][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7749.319523][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7749.319523][ T253] netlink_rcv_skb+0x130/0x360 [ 7749.319523][ T253] netlink_unicast+0x449/0x710 [ 7749.319523][ T253] netlink_sendmsg+0x723/0xbe0 [ 7749.319523][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7749.319523][ T253] ___sys_sendmsg+0xee/0x170 [ 7749.319523][ T253] __sys_sendmsg+0xcd/0x170 [ 7749.319523][ T253] do_syscall_64+0xc6/0x1e0 [ 7749.319523][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7749.319523][ T253] [ 7759.842308][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7759.842784][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7759.842784][ T253] dst_init+0x84/0x4a0 [ 7759.842784][ T253] dst_alloc+0x97/0x150 [ 7759.842784][ T253] ip6_dst_alloc+0x23/0x90 [ 7759.842784][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7759.842784][ T253] ip6_pol_route+0x56f/0x840 [ 7759.842784][ T253] fib6_rule_lookup+0x334/0x630 [ 7759.842784][ T253] ip6_route_output_flags+0x259/0x480 [ 7759.842784][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7759.842784][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7759.842784][ T253] netlink_rcv_skb+0x130/0x360 [ 7759.842784][ T253] netlink_unicast+0x449/0x710 [ 7759.842784][ T253] netlink_sendmsg+0x723/0xbe0 [ 7759.842784][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7759.842784][ T253] ___sys_sendmsg+0xee/0x170 [ 7759.842784][ T253] __sys_sendmsg+0xcd/0x170 [ 7759.842784][ T253] do_syscall_64+0xc6/0x1e0 [ 7759.842784][ T253] [ 7759.844996][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7759.844996][ T253] netdev_get_by_index+0x5e/0x80 [ 7759.844996][ T253] fib6_nh_init+0x3d8/0x1580 [ 7759.844996][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7759.844996][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7759.844996][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7759.844996][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7759.844996][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7759.844996][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7759.844996][ T253] addrconf_dad_begin+0x310/0x670 [ 7759.844996][ T253] addrconf_dad_work+0x10b/0xab0 [ 7759.844996][ T253] process_one_work+0x84d/0x18a0 [ 7759.844996][ T253] worker_thread+0x587/0xd30 [ 7759.844996][ T253] kthread+0x28a/0x350 [ 7759.844996][ T253] ret_from_fork+0x31/0x70 [ 7759.844996][ T253] ret_from_fork_asm+0x1a/0x30 [ 7759.844996][ T253] [ 7759.847143][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7759.847143][ T253] netdev_get_by_index+0x5e/0x80 [ 7759.847143][ T253] fib6_nh_init+0x3d8/0x1580 [ 7759.847143][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7759.847143][ T253] ip6_route_add+0x1c/0x140 [ 7759.847143][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7759.847143][ T253] inet6_addr_add+0x4f8/0xa40 [ 7759.847143][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7759.847143][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7759.847143][ T253] netlink_rcv_skb+0x130/0x360 [ 7759.847143][ T253] netlink_unicast+0x449/0x710 [ 7759.847143][ T253] netlink_sendmsg+0x723/0xbe0 [ 7759.847143][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7759.847143][ T253] ___sys_sendmsg+0xee/0x170 [ 7759.847143][ T253] __sys_sendmsg+0xcd/0x170 [ 7759.847143][ T253] do_syscall_64+0xc6/0x1e0 [ 7759.847143][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7759.847143][ T253] [ 7759.849375][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7759.849375][ T253] netdev_get_by_index+0x5e/0x80 [ 7759.849375][ T253] fib6_nh_init+0x3d8/0x1580 [ 7759.849375][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7759.849375][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7759.849375][ T253] ipv6_add_addr+0x411/0x2000 [ 7759.849375][ T253] inet6_addr_add+0x30e/0xa40 [ 7759.849375][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7759.849375][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7759.849375][ T253] netlink_rcv_skb+0x130/0x360 [ 7759.849375][ T253] netlink_unicast+0x449/0x710 [ 7759.849375][ T253] netlink_sendmsg+0x723/0xbe0 [ 7759.849375][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7759.849375][ T253] ___sys_sendmsg+0xee/0x170 [ 7759.849375][ T253] __sys_sendmsg+0xcd/0x170 [ 7759.849375][ T253] do_syscall_64+0xc6/0x1e0 [ 7759.849375][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7759.849375][ T253] [ 7759.851609][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7759.851609][ T253] netdev_get_by_index+0x5e/0x80 [ 7759.851609][ T253] fib6_nh_init+0x3d8/0x1580 [ 7759.851609][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7759.851609][ T253] ip6_route_add+0x1c/0x140 [ 7759.851609][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7759.851609][ T253] addrconf_add_dev+0xe2/0x170 [ 7759.851609][ T253] inet6_addr_add+0x12f/0xa40 [ 7759.851609][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7759.851609][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7759.851609][ T253] netlink_rcv_skb+0x130/0x360 [ 7759.851609][ T253] netlink_unicast+0x449/0x710 [ 7759.851609][ T253] netlink_sendmsg+0x723/0xbe0 [ 7759.851609][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7759.851609][ T253] ___sys_sendmsg+0xee/0x170 [ 7759.851609][ T253] __sys_sendmsg+0xcd/0x170 [ 7759.851609][ T253] do_syscall_64+0xc6/0x1e0 [ 7759.851609][ T253] [ 7759.853814][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7759.853814][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7759.853814][ T253] ipv6_find_idev+0x102/0x170 [ 7759.853814][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7759.853814][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7759.853814][ T253] netlink_rcv_skb+0x130/0x360 [ 7759.853814][ T253] netlink_unicast+0x449/0x710 [ 7759.853814][ T253] netlink_sendmsg+0x723/0xbe0 [ 7759.853814][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7759.853814][ T253] ___sys_sendmsg+0xee/0x170 [ 7759.853814][ T253] __sys_sendmsg+0xcd/0x170 [ 7759.853814][ T253] do_syscall_64+0xc6/0x1e0 [ 7759.853814][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7759.853814][ T253] [ 7759.855549][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7759.855549][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7759.855549][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7759.855549][ T253] ipv6_find_idev+0x102/0x170 [ 7759.855549][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7759.855549][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7759.855549][ T253] netlink_rcv_skb+0x130/0x360 [ 7759.855549][ T253] netlink_unicast+0x449/0x710 [ 7759.855549][ T253] netlink_sendmsg+0x723/0xbe0 [ 7759.855549][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7759.855549][ T253] ___sys_sendmsg+0xee/0x170 [ 7759.855549][ T253] __sys_sendmsg+0xcd/0x170 [ 7759.855549][ T253] do_syscall_64+0xc6/0x1e0 [ 7759.855549][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7759.855549][ T253] [ 7770.106311][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7770.106793][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7770.106793][ T253] dst_init+0x84/0x4a0 [ 7770.106793][ T253] dst_alloc+0x97/0x150 [ 7770.106793][ T253] ip6_dst_alloc+0x23/0x90 [ 7770.106793][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7770.106793][ T253] ip6_pol_route+0x56f/0x840 [ 7770.106793][ T253] fib6_rule_lookup+0x334/0x630 [ 7770.106793][ T253] ip6_route_output_flags+0x259/0x480 [ 7770.106793][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7770.106793][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7770.106793][ T253] netlink_rcv_skb+0x130/0x360 [ 7770.106793][ T253] netlink_unicast+0x449/0x710 [ 7770.106793][ T253] netlink_sendmsg+0x723/0xbe0 [ 7770.106793][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7770.106793][ T253] ___sys_sendmsg+0xee/0x170 [ 7770.106793][ T253] __sys_sendmsg+0xcd/0x170 [ 7770.106793][ T253] do_syscall_64+0xc6/0x1e0 [ 7770.106793][ T253] [ 7770.108995][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7770.108995][ T253] netdev_get_by_index+0x5e/0x80 [ 7770.108995][ T253] fib6_nh_init+0x3d8/0x1580 [ 7770.108995][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7770.108995][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7770.108995][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7770.108995][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7770.108995][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7770.108995][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7770.108995][ T253] addrconf_dad_begin+0x310/0x670 [ 7770.108995][ T253] addrconf_dad_work+0x10b/0xab0 [ 7770.108995][ T253] process_one_work+0x84d/0x18a0 [ 7770.108995][ T253] worker_thread+0x587/0xd30 [ 7770.108995][ T253] kthread+0x28a/0x350 [ 7770.108995][ T253] ret_from_fork+0x31/0x70 [ 7770.108995][ T253] ret_from_fork_asm+0x1a/0x30 [ 7770.108995][ T253] [ 7770.111149][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7770.111149][ T253] netdev_get_by_index+0x5e/0x80 [ 7770.111149][ T253] fib6_nh_init+0x3d8/0x1580 [ 7770.111149][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7770.111149][ T253] ip6_route_add+0x1c/0x140 [ 7770.111149][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7770.111149][ T253] inet6_addr_add+0x4f8/0xa40 [ 7770.111149][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7770.111149][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7770.111149][ T253] netlink_rcv_skb+0x130/0x360 [ 7770.111149][ T253] netlink_unicast+0x449/0x710 [ 7770.111149][ T253] netlink_sendmsg+0x723/0xbe0 [ 7770.111149][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7770.111149][ T253] ___sys_sendmsg+0xee/0x170 [ 7770.111149][ T253] __sys_sendmsg+0xcd/0x170 [ 7770.111149][ T253] do_syscall_64+0xc6/0x1e0 [ 7770.111149][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7770.111149][ T253] [ 7770.113380][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7770.113380][ T253] netdev_get_by_index+0x5e/0x80 [ 7770.113380][ T253] fib6_nh_init+0x3d8/0x1580 [ 7770.113380][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7770.113380][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7770.113380][ T253] ipv6_add_addr+0x411/0x2000 [ 7770.113380][ T253] inet6_addr_add+0x30e/0xa40 [ 7770.113380][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7770.113380][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7770.113380][ T253] netlink_rcv_skb+0x130/0x360 [ 7770.113380][ T253] netlink_unicast+0x449/0x710 [ 7770.113380][ T253] netlink_sendmsg+0x723/0xbe0 [ 7770.113380][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7770.113380][ T253] ___sys_sendmsg+0xee/0x170 [ 7770.113380][ T253] __sys_sendmsg+0xcd/0x170 [ 7770.113380][ T253] do_syscall_64+0xc6/0x1e0 [ 7770.113380][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7770.113380][ T253] [ 7770.115633][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7770.115633][ T253] netdev_get_by_index+0x5e/0x80 [ 7770.115633][ T253] fib6_nh_init+0x3d8/0x1580 [ 7770.115633][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7770.115633][ T253] ip6_route_add+0x1c/0x140 [ 7770.115633][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7770.115633][ T253] addrconf_add_dev+0xe2/0x170 [ 7770.115633][ T253] inet6_addr_add+0x12f/0xa40 [ 7770.115633][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7770.115633][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7770.115633][ T253] netlink_rcv_skb+0x130/0x360 [ 7770.115633][ T253] netlink_unicast+0x449/0x710 [ 7770.115633][ T253] netlink_sendmsg+0x723/0xbe0 [ 7770.115633][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7770.115633][ T253] ___sys_sendmsg+0xee/0x170 [ 7770.115633][ T253] __sys_sendmsg+0xcd/0x170 [ 7770.115633][ T253] do_syscall_64+0xc6/0x1e0 [ 7770.115633][ T253] [ 7770.117828][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7770.117828][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7770.117828][ T253] ipv6_find_idev+0x102/0x170 [ 7770.117828][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7770.117828][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7770.117828][ T253] netlink_rcv_skb+0x130/0x360 [ 7770.117828][ T253] netlink_unicast+0x449/0x710 [ 7770.117828][ T253] netlink_sendmsg+0x723/0xbe0 [ 7770.117828][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7770.117828][ T253] ___sys_sendmsg+0xee/0x170 [ 7770.117828][ T253] __sys_sendmsg+0xcd/0x170 [ 7770.117828][ T253] do_syscall_64+0xc6/0x1e0 [ 7770.117828][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7770.117828][ T253] [ 7770.119546][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7770.119546][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7770.119546][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7770.119546][ T253] ipv6_find_idev+0x102/0x170 [ 7770.119546][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7770.119546][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7770.119546][ T253] netlink_rcv_skb+0x130/0x360 [ 7770.119546][ T253] netlink_unicast+0x449/0x710 [ 7770.119546][ T253] netlink_sendmsg+0x723/0xbe0 [ 7770.119546][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7770.119546][ T253] ___sys_sendmsg+0xee/0x170 [ 7770.119546][ T253] __sys_sendmsg+0xcd/0x170 [ 7770.119546][ T253] do_syscall_64+0xc6/0x1e0 [ 7770.119546][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7770.119546][ T253] [ 7780.362311][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7780.362811][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7780.362811][ T253] dst_init+0x84/0x4a0 [ 7780.362811][ T253] dst_alloc+0x97/0x150 [ 7780.362811][ T253] ip6_dst_alloc+0x23/0x90 [ 7780.362811][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7780.362811][ T253] ip6_pol_route+0x56f/0x840 [ 7780.362811][ T253] fib6_rule_lookup+0x334/0x630 [ 7780.362811][ T253] ip6_route_output_flags+0x259/0x480 [ 7780.362811][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7780.362811][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7780.362811][ T253] netlink_rcv_skb+0x130/0x360 [ 7780.362811][ T253] netlink_unicast+0x449/0x710 [ 7780.362811][ T253] netlink_sendmsg+0x723/0xbe0 [ 7780.362811][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7780.362811][ T253] ___sys_sendmsg+0xee/0x170 [ 7780.362811][ T253] __sys_sendmsg+0xcd/0x170 [ 7780.362811][ T253] do_syscall_64+0xc6/0x1e0 [ 7780.362811][ T253] [ 7780.365005][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7780.365005][ T253] netdev_get_by_index+0x5e/0x80 [ 7780.365005][ T253] fib6_nh_init+0x3d8/0x1580 [ 7780.365005][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7780.365005][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7780.365005][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7780.365005][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7780.365005][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7780.365005][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7780.365005][ T253] addrconf_dad_begin+0x310/0x670 [ 7780.365005][ T253] addrconf_dad_work+0x10b/0xab0 [ 7780.365005][ T253] process_one_work+0x84d/0x18a0 [ 7780.365005][ T253] worker_thread+0x587/0xd30 [ 7780.365005][ T253] kthread+0x28a/0x350 [ 7780.365005][ T253] ret_from_fork+0x31/0x70 [ 7780.365005][ T253] ret_from_fork_asm+0x1a/0x30 [ 7780.365005][ T253] [ 7780.367172][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7780.367172][ T253] netdev_get_by_index+0x5e/0x80 [ 7780.367172][ T253] fib6_nh_init+0x3d8/0x1580 [ 7780.367172][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7780.367172][ T253] ip6_route_add+0x1c/0x140 [ 7780.367172][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7780.367172][ T253] inet6_addr_add+0x4f8/0xa40 [ 7780.367172][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7780.367172][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7780.367172][ T253] netlink_rcv_skb+0x130/0x360 [ 7780.367172][ T253] netlink_unicast+0x449/0x710 [ 7780.367172][ T253] netlink_sendmsg+0x723/0xbe0 [ 7780.367172][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7780.367172][ T253] ___sys_sendmsg+0xee/0x170 [ 7780.367172][ T253] __sys_sendmsg+0xcd/0x170 [ 7780.367172][ T253] do_syscall_64+0xc6/0x1e0 [ 7780.367172][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7780.367172][ T253] [ 7780.369421][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7780.369421][ T253] netdev_get_by_index+0x5e/0x80 [ 7780.369421][ T253] fib6_nh_init+0x3d8/0x1580 [ 7780.369421][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7780.369421][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7780.369421][ T253] ipv6_add_addr+0x411/0x2000 [ 7780.369421][ T253] inet6_addr_add+0x30e/0xa40 [ 7780.369421][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7780.369421][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7780.369421][ T253] netlink_rcv_skb+0x130/0x360 [ 7780.369421][ T253] netlink_unicast+0x449/0x710 [ 7780.369421][ T253] netlink_sendmsg+0x723/0xbe0 [ 7780.369421][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7780.369421][ T253] ___sys_sendmsg+0xee/0x170 [ 7780.369421][ T253] __sys_sendmsg+0xcd/0x170 [ 7780.369421][ T253] do_syscall_64+0xc6/0x1e0 [ 7780.369421][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7780.369421][ T253] [ 7780.371660][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7780.371660][ T253] netdev_get_by_index+0x5e/0x80 [ 7780.371660][ T253] fib6_nh_init+0x3d8/0x1580 [ 7780.371660][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7780.371660][ T253] ip6_route_add+0x1c/0x140 [ 7780.371660][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7780.371660][ T253] addrconf_add_dev+0xe2/0x170 [ 7780.371660][ T253] inet6_addr_add+0x12f/0xa40 [ 7780.371660][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7780.371660][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7780.371660][ T253] netlink_rcv_skb+0x130/0x360 [ 7780.371660][ T253] netlink_unicast+0x449/0x710 [ 7780.371660][ T253] netlink_sendmsg+0x723/0xbe0 [ 7780.371660][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7780.371660][ T253] ___sys_sendmsg+0xee/0x170 [ 7780.371660][ T253] __sys_sendmsg+0xcd/0x170 [ 7780.371660][ T253] do_syscall_64+0xc6/0x1e0 [ 7780.371660][ T253] [ 7780.373875][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7780.373875][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7780.373875][ T253] ipv6_find_idev+0x102/0x170 [ 7780.373875][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7780.373875][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7780.373875][ T253] netlink_rcv_skb+0x130/0x360 [ 7780.373875][ T253] netlink_unicast+0x449/0x710 [ 7780.373875][ T253] netlink_sendmsg+0x723/0xbe0 [ 7780.373875][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7780.373875][ T253] ___sys_sendmsg+0xee/0x170 [ 7780.373875][ T253] __sys_sendmsg+0xcd/0x170 [ 7780.373875][ T253] do_syscall_64+0xc6/0x1e0 [ 7780.373875][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7780.373875][ T253] [ 7780.375601][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7780.375601][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7780.375601][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7780.375601][ T253] ipv6_find_idev+0x102/0x170 [ 7780.375601][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7780.375601][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7780.375601][ T253] netlink_rcv_skb+0x130/0x360 [ 7780.375601][ T253] netlink_unicast+0x449/0x710 [ 7780.375601][ T253] netlink_sendmsg+0x723/0xbe0 [ 7780.375601][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7780.375601][ T253] ___sys_sendmsg+0xee/0x170 [ 7780.375601][ T253] __sys_sendmsg+0xcd/0x170 [ 7780.375601][ T253] do_syscall_64+0xc6/0x1e0 [ 7780.375601][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7780.375601][ T253] [ 7790.602397][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7790.602897][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7790.602897][ T253] dst_init+0x84/0x4a0 [ 7790.602897][ T253] dst_alloc+0x97/0x150 [ 7790.602897][ T253] ip6_dst_alloc+0x23/0x90 [ 7790.602897][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7790.602897][ T253] ip6_pol_route+0x56f/0x840 [ 7790.602897][ T253] fib6_rule_lookup+0x334/0x630 [ 7790.602897][ T253] ip6_route_output_flags+0x259/0x480 [ 7790.602897][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7790.602897][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7790.602897][ T253] netlink_rcv_skb+0x130/0x360 [ 7790.602897][ T253] netlink_unicast+0x449/0x710 [ 7790.602897][ T253] netlink_sendmsg+0x723/0xbe0 [ 7790.602897][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7790.602897][ T253] ___sys_sendmsg+0xee/0x170 [ 7790.602897][ T253] __sys_sendmsg+0xcd/0x170 [ 7790.602897][ T253] do_syscall_64+0xc6/0x1e0 [ 7790.602897][ T253] [ 7790.605102][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7790.605102][ T253] netdev_get_by_index+0x5e/0x80 [ 7790.605102][ T253] fib6_nh_init+0x3d8/0x1580 [ 7790.605102][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7790.605102][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7790.605102][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7790.605102][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7790.605102][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7790.605102][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7790.605102][ T253] addrconf_dad_begin+0x310/0x670 [ 7790.605102][ T253] addrconf_dad_work+0x10b/0xab0 [ 7790.605102][ T253] process_one_work+0x84d/0x18a0 [ 7790.605102][ T253] worker_thread+0x587/0xd30 [ 7790.605102][ T253] kthread+0x28a/0x350 [ 7790.605102][ T253] ret_from_fork+0x31/0x70 [ 7790.605102][ T253] ret_from_fork_asm+0x1a/0x30 [ 7790.605102][ T253] [ 7790.607252][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7790.607252][ T253] netdev_get_by_index+0x5e/0x80 [ 7790.607252][ T253] fib6_nh_init+0x3d8/0x1580 [ 7790.607252][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7790.607252][ T253] ip6_route_add+0x1c/0x140 [ 7790.607252][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7790.607252][ T253] inet6_addr_add+0x4f8/0xa40 [ 7790.607252][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7790.607252][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7790.607252][ T253] netlink_rcv_skb+0x130/0x360 [ 7790.607252][ T253] netlink_unicast+0x449/0x710 [ 7790.607252][ T253] netlink_sendmsg+0x723/0xbe0 [ 7790.607252][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7790.607252][ T253] ___sys_sendmsg+0xee/0x170 [ 7790.607252][ T253] __sys_sendmsg+0xcd/0x170 [ 7790.607252][ T253] do_syscall_64+0xc6/0x1e0 [ 7790.607252][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7790.607252][ T253] [ 7790.609501][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7790.609501][ T253] netdev_get_by_index+0x5e/0x80 [ 7790.609501][ T253] fib6_nh_init+0x3d8/0x1580 [ 7790.609501][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7790.609501][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7790.609501][ T253] ipv6_add_addr+0x411/0x2000 [ 7790.609501][ T253] inet6_addr_add+0x30e/0xa40 [ 7790.609501][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7790.609501][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7790.609501][ T253] netlink_rcv_skb+0x130/0x360 [ 7790.609501][ T253] netlink_unicast+0x449/0x710 [ 7790.609501][ T253] netlink_sendmsg+0x723/0xbe0 [ 7790.609501][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7790.609501][ T253] ___sys_sendmsg+0xee/0x170 [ 7790.609501][ T253] __sys_sendmsg+0xcd/0x170 [ 7790.609501][ T253] do_syscall_64+0xc6/0x1e0 [ 7790.609501][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7790.609501][ T253] [ 7790.611741][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7790.611741][ T253] netdev_get_by_index+0x5e/0x80 [ 7790.611741][ T253] fib6_nh_init+0x3d8/0x1580 [ 7790.611741][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7790.611741][ T253] ip6_route_add+0x1c/0x140 [ 7790.611741][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7790.611741][ T253] addrconf_add_dev+0xe2/0x170 [ 7790.611741][ T253] inet6_addr_add+0x12f/0xa40 [ 7790.611741][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7790.611741][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7790.611741][ T253] netlink_rcv_skb+0x130/0x360 [ 7790.611741][ T253] netlink_unicast+0x449/0x710 [ 7790.611741][ T253] netlink_sendmsg+0x723/0xbe0 [ 7790.611741][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7790.611741][ T253] ___sys_sendmsg+0xee/0x170 [ 7790.611741][ T253] __sys_sendmsg+0xcd/0x170 [ 7790.611741][ T253] do_syscall_64+0xc6/0x1e0 [ 7790.611741][ T253] [ 7790.613958][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7790.613958][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7790.613958][ T253] ipv6_find_idev+0x102/0x170 [ 7790.613958][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7790.613958][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7790.613958][ T253] netlink_rcv_skb+0x130/0x360 [ 7790.613958][ T253] netlink_unicast+0x449/0x710 [ 7790.613958][ T253] netlink_sendmsg+0x723/0xbe0 [ 7790.613958][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7790.613958][ T253] ___sys_sendmsg+0xee/0x170 [ 7790.613958][ T253] __sys_sendmsg+0xcd/0x170 [ 7790.613958][ T253] do_syscall_64+0xc6/0x1e0 [ 7790.613958][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7790.613958][ T253] [ 7790.615685][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7790.615685][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7790.615685][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7790.615685][ T253] ipv6_find_idev+0x102/0x170 [ 7790.615685][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7790.615685][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7790.615685][ T253] netlink_rcv_skb+0x130/0x360 [ 7790.615685][ T253] netlink_unicast+0x449/0x710 [ 7790.615685][ T253] netlink_sendmsg+0x723/0xbe0 [ 7790.615685][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7790.615685][ T253] ___sys_sendmsg+0xee/0x170 [ 7790.615685][ T253] __sys_sendmsg+0xcd/0x170 [ 7790.615685][ T253] do_syscall_64+0xc6/0x1e0 [ 7790.615685][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7790.615685][ T253] [ 7800.754317][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7800.754805][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7800.754805][ T253] dst_init+0x84/0x4a0 [ 7800.754805][ T253] dst_alloc+0x97/0x150 [ 7800.754805][ T253] ip6_dst_alloc+0x23/0x90 [ 7800.754805][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7800.754805][ T253] ip6_pol_route+0x56f/0x840 [ 7800.754805][ T253] fib6_rule_lookup+0x334/0x630 [ 7800.754805][ T253] ip6_route_output_flags+0x259/0x480 [ 7800.754805][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7800.754805][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7800.754805][ T253] netlink_rcv_skb+0x130/0x360 [ 7800.754805][ T253] netlink_unicast+0x449/0x710 [ 7800.754805][ T253] netlink_sendmsg+0x723/0xbe0 [ 7800.754805][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7800.754805][ T253] ___sys_sendmsg+0xee/0x170 [ 7800.754805][ T253] __sys_sendmsg+0xcd/0x170 [ 7800.754805][ T253] do_syscall_64+0xc6/0x1e0 [ 7800.754805][ T253] [ 7800.757027][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7800.757027][ T253] netdev_get_by_index+0x5e/0x80 [ 7800.757027][ T253] fib6_nh_init+0x3d8/0x1580 [ 7800.757027][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7800.757027][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7800.757027][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7800.757027][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7800.757027][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7800.757027][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7800.757027][ T253] addrconf_dad_begin+0x310/0x670 [ 7800.757027][ T253] addrconf_dad_work+0x10b/0xab0 [ 7800.757027][ T253] process_one_work+0x84d/0x18a0 [ 7800.757027][ T253] worker_thread+0x587/0xd30 [ 7800.757027][ T253] kthread+0x28a/0x350 [ 7800.757027][ T253] ret_from_fork+0x31/0x70 [ 7800.757027][ T253] ret_from_fork_asm+0x1a/0x30 [ 7800.757027][ T253] [ 7800.759187][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7800.759187][ T253] netdev_get_by_index+0x5e/0x80 [ 7800.759187][ T253] fib6_nh_init+0x3d8/0x1580 [ 7800.759187][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7800.759187][ T253] ip6_route_add+0x1c/0x140 [ 7800.759187][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7800.759187][ T253] inet6_addr_add+0x4f8/0xa40 [ 7800.759187][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7800.759187][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7800.759187][ T253] netlink_rcv_skb+0x130/0x360 [ 7800.759187][ T253] netlink_unicast+0x449/0x710 [ 7800.759187][ T253] netlink_sendmsg+0x723/0xbe0 [ 7800.759187][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7800.759187][ T253] ___sys_sendmsg+0xee/0x170 [ 7800.759187][ T253] __sys_sendmsg+0xcd/0x170 [ 7800.759187][ T253] do_syscall_64+0xc6/0x1e0 [ 7800.759187][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7800.759187][ T253] [ 7800.761459][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7800.761459][ T253] netdev_get_by_index+0x5e/0x80 [ 7800.761459][ T253] fib6_nh_init+0x3d8/0x1580 [ 7800.761459][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7800.761459][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7800.761459][ T253] ipv6_add_addr+0x411/0x2000 [ 7800.761459][ T253] inet6_addr_add+0x30e/0xa40 [ 7800.761459][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7800.761459][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7800.761459][ T253] netlink_rcv_skb+0x130/0x360 [ 7800.761459][ T253] netlink_unicast+0x449/0x710 [ 7800.761459][ T253] netlink_sendmsg+0x723/0xbe0 [ 7800.761459][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7800.761459][ T253] ___sys_sendmsg+0xee/0x170 [ 7800.761459][ T253] __sys_sendmsg+0xcd/0x170 [ 7800.761459][ T253] do_syscall_64+0xc6/0x1e0 [ 7800.761459][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7800.761459][ T253] [ 7800.763768][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7800.763768][ T253] netdev_get_by_index+0x5e/0x80 [ 7800.763768][ T253] fib6_nh_init+0x3d8/0x1580 [ 7800.763768][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7800.763768][ T253] ip6_route_add+0x1c/0x140 [ 7800.763768][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7800.763768][ T253] addrconf_add_dev+0xe2/0x170 [ 7800.763768][ T253] inet6_addr_add+0x12f/0xa40 [ 7800.763768][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7800.763768][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7800.763768][ T253] netlink_rcv_skb+0x130/0x360 [ 7800.763768][ T253] netlink_unicast+0x449/0x710 [ 7800.763768][ T253] netlink_sendmsg+0x723/0xbe0 [ 7800.763768][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7800.763768][ T253] ___sys_sendmsg+0xee/0x170 [ 7800.763768][ T253] __sys_sendmsg+0xcd/0x170 [ 7800.763768][ T253] do_syscall_64+0xc6/0x1e0 [ 7800.763768][ T253] [ 7800.765986][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7800.765986][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7800.765986][ T253] ipv6_find_idev+0x102/0x170 [ 7800.765986][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7800.765986][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7800.765986][ T253] netlink_rcv_skb+0x130/0x360 [ 7800.765986][ T253] netlink_unicast+0x449/0x710 [ 7800.765986][ T253] netlink_sendmsg+0x723/0xbe0 [ 7800.765986][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7800.765986][ T253] ___sys_sendmsg+0xee/0x170 [ 7800.765986][ T253] __sys_sendmsg+0xcd/0x170 [ 7800.765986][ T253] do_syscall_64+0xc6/0x1e0 [ 7800.765986][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7800.765986][ T253] [ 7800.767726][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7800.767726][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7800.767726][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7800.767726][ T253] ipv6_find_idev+0x102/0x170 [ 7800.767726][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7800.767726][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7800.767726][ T253] netlink_rcv_skb+0x130/0x360 [ 7800.767726][ T253] netlink_unicast+0x449/0x710 [ 7800.767726][ T253] netlink_sendmsg+0x723/0xbe0 [ 7800.767726][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7800.767726][ T253] ___sys_sendmsg+0xee/0x170 [ 7800.767726][ T253] __sys_sendmsg+0xcd/0x170 [ 7800.767726][ T253] do_syscall_64+0xc6/0x1e0 [ 7800.767726][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7800.767726][ T253] [ 7811.010334][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7811.010846][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7811.010846][ T253] dst_init+0x84/0x4a0 [ 7811.010846][ T253] dst_alloc+0x97/0x150 [ 7811.010846][ T253] ip6_dst_alloc+0x23/0x90 [ 7811.010846][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7811.010846][ T253] ip6_pol_route+0x56f/0x840 [ 7811.010846][ T253] fib6_rule_lookup+0x334/0x630 [ 7811.010846][ T253] ip6_route_output_flags+0x259/0x480 [ 7811.010846][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7811.010846][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7811.010846][ T253] netlink_rcv_skb+0x130/0x360 [ 7811.010846][ T253] netlink_unicast+0x449/0x710 [ 7811.010846][ T253] netlink_sendmsg+0x723/0xbe0 [ 7811.010846][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7811.010846][ T253] ___sys_sendmsg+0xee/0x170 [ 7811.010846][ T253] __sys_sendmsg+0xcd/0x170 [ 7811.010846][ T253] do_syscall_64+0xc6/0x1e0 [ 7811.010846][ T253] [ 7811.013535][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7811.013535][ T253] netdev_get_by_index+0x5e/0x80 [ 7811.013535][ T253] fib6_nh_init+0x3d8/0x1580 [ 7811.013535][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7811.013535][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7811.013535][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7811.013535][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7811.013535][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7811.013535][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7811.013535][ T253] addrconf_dad_begin+0x310/0x670 [ 7811.013535][ T253] addrconf_dad_work+0x10b/0xab0 [ 7811.013535][ T253] process_one_work+0x84d/0x18a0 [ 7811.013535][ T253] worker_thread+0x587/0xd30 [ 7811.013535][ T253] kthread+0x28a/0x350 [ 7811.013535][ T253] ret_from_fork+0x31/0x70 [ 7811.013535][ T253] ret_from_fork_asm+0x1a/0x30 [ 7811.013535][ T253] [ 7811.016142][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7811.016142][ T253] netdev_get_by_index+0x5e/0x80 [ 7811.016142][ T253] fib6_nh_init+0x3d8/0x1580 [ 7811.016142][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7811.016142][ T253] ip6_route_add+0x1c/0x140 [ 7811.016142][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7811.016142][ T253] inet6_addr_add+0x4f8/0xa40 [ 7811.016142][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7811.016142][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7811.016142][ T253] netlink_rcv_skb+0x130/0x360 [ 7811.016142][ T253] netlink_unicast+0x449/0x710 [ 7811.016142][ T253] netlink_sendmsg+0x723/0xbe0 [ 7811.016142][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7811.016142][ T253] ___sys_sendmsg+0xee/0x170 [ 7811.016142][ T253] __sys_sendmsg+0xcd/0x170 [ 7811.016142][ T253] do_syscall_64+0xc6/0x1e0 [ 7811.016142][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7811.016142][ T253] [ 7811.018856][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7811.018856][ T253] netdev_get_by_index+0x5e/0x80 [ 7811.018856][ T253] fib6_nh_init+0x3d8/0x1580 [ 7811.018856][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7811.018856][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7811.018856][ T253] ipv6_add_addr+0x411/0x2000 [ 7811.018856][ T253] inet6_addr_add+0x30e/0xa40 [ 7811.018856][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7811.018856][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7811.018856][ T253] netlink_rcv_skb+0x130/0x360 [ 7811.018856][ T253] netlink_unicast+0x449/0x710 [ 7811.018856][ T253] netlink_sendmsg+0x723/0xbe0 [ 7811.018856][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7811.018856][ T253] ___sys_sendmsg+0xee/0x170 [ 7811.018856][ T253] __sys_sendmsg+0xcd/0x170 [ 7811.018856][ T253] do_syscall_64+0xc6/0x1e0 [ 7811.018856][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7811.018856][ T253] [ 7811.021830][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7811.021830][ T253] netdev_get_by_index+0x5e/0x80 [ 7811.021830][ T253] fib6_nh_init+0x3d8/0x1580 [ 7811.021830][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7811.021830][ T253] ip6_route_add+0x1c/0x140 [ 7811.021830][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7811.021830][ T253] addrconf_add_dev+0xe2/0x170 [ 7811.021830][ T253] inet6_addr_add+0x12f/0xa40 [ 7811.021830][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7811.021830][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7811.021830][ T253] netlink_rcv_skb+0x130/0x360 [ 7811.021830][ T253] netlink_unicast+0x449/0x710 [ 7811.021830][ T253] netlink_sendmsg+0x723/0xbe0 [ 7811.021830][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7811.021830][ T253] ___sys_sendmsg+0xee/0x170 [ 7811.021830][ T253] __sys_sendmsg+0xcd/0x170 [ 7811.021830][ T253] do_syscall_64+0xc6/0x1e0 [ 7811.021830][ T253] [ 7811.024470][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7811.024470][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7811.024470][ T253] ipv6_find_idev+0x102/0x170 [ 7811.024470][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7811.024470][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7811.024470][ T253] netlink_rcv_skb+0x130/0x360 [ 7811.024470][ T253] netlink_unicast+0x449/0x710 [ 7811.024470][ T253] netlink_sendmsg+0x723/0xbe0 [ 7811.024470][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7811.024470][ T253] ___sys_sendmsg+0xee/0x170 [ 7811.024470][ T253] __sys_sendmsg+0xcd/0x170 [ 7811.024470][ T253] do_syscall_64+0xc6/0x1e0 [ 7811.024470][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7811.024470][ T253] [ 7811.026197][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7811.026197][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7811.026197][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7811.026197][ T253] ipv6_find_idev+0x102/0x170 [ 7811.026197][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7811.026197][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7811.026197][ T253] netlink_rcv_skb+0x130/0x360 [ 7811.026197][ T253] netlink_unicast+0x449/0x710 [ 7811.026197][ T253] netlink_sendmsg+0x723/0xbe0 [ 7811.026197][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7811.026197][ T253] ___sys_sendmsg+0xee/0x170 [ 7811.026197][ T253] __sys_sendmsg+0xcd/0x170 [ 7811.026197][ T253] do_syscall_64+0xc6/0x1e0 [ 7811.026197][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7811.026197][ T253] [ 7821.266337][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7821.266838][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7821.266838][ T253] dst_init+0x84/0x4a0 [ 7821.266838][ T253] dst_alloc+0x97/0x150 [ 7821.266838][ T253] ip6_dst_alloc+0x23/0x90 [ 7821.266838][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7821.266838][ T253] ip6_pol_route+0x56f/0x840 [ 7821.266838][ T253] fib6_rule_lookup+0x334/0x630 [ 7821.266838][ T253] ip6_route_output_flags+0x259/0x480 [ 7821.266838][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7821.266838][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7821.266838][ T253] netlink_rcv_skb+0x130/0x360 [ 7821.266838][ T253] netlink_unicast+0x449/0x710 [ 7821.266838][ T253] netlink_sendmsg+0x723/0xbe0 [ 7821.266838][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7821.266838][ T253] ___sys_sendmsg+0xee/0x170 [ 7821.266838][ T253] __sys_sendmsg+0xcd/0x170 [ 7821.266838][ T253] do_syscall_64+0xc6/0x1e0 [ 7821.266838][ T253] [ 7821.269504][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7821.269504][ T253] netdev_get_by_index+0x5e/0x80 [ 7821.269504][ T253] fib6_nh_init+0x3d8/0x1580 [ 7821.269504][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7821.269504][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7821.269504][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7821.269504][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7821.269504][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7821.269504][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7821.269504][ T253] addrconf_dad_begin+0x310/0x670 [ 7821.269504][ T253] addrconf_dad_work+0x10b/0xab0 [ 7821.269504][ T253] process_one_work+0x84d/0x18a0 [ 7821.269504][ T253] worker_thread+0x587/0xd30 [ 7821.269504][ T253] kthread+0x28a/0x350 [ 7821.269504][ T253] ret_from_fork+0x31/0x70 [ 7821.269504][ T253] ret_from_fork_asm+0x1a/0x30 [ 7821.269504][ T253] [ 7821.272078][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7821.272078][ T253] netdev_get_by_index+0x5e/0x80 [ 7821.272078][ T253] fib6_nh_init+0x3d8/0x1580 [ 7821.272078][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7821.272078][ T253] ip6_route_add+0x1c/0x140 [ 7821.272078][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7821.272078][ T253] inet6_addr_add+0x4f8/0xa40 [ 7821.272078][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7821.272078][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7821.272078][ T253] netlink_rcv_skb+0x130/0x360 [ 7821.272078][ T253] netlink_unicast+0x449/0x710 [ 7821.272078][ T253] netlink_sendmsg+0x723/0xbe0 [ 7821.272078][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7821.272078][ T253] ___sys_sendmsg+0xee/0x170 [ 7821.272078][ T253] __sys_sendmsg+0xcd/0x170 [ 7821.272078][ T253] do_syscall_64+0xc6/0x1e0 [ 7821.272078][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7821.272078][ T253] [ 7821.274807][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7821.274807][ T253] netdev_get_by_index+0x5e/0x80 [ 7821.274807][ T253] fib6_nh_init+0x3d8/0x1580 [ 7821.274807][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7821.274807][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7821.274807][ T253] ipv6_add_addr+0x411/0x2000 [ 7821.274807][ T253] inet6_addr_add+0x30e/0xa40 [ 7821.274807][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7821.274807][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7821.274807][ T253] netlink_rcv_skb+0x130/0x360 [ 7821.274807][ T253] netlink_unicast+0x449/0x710 [ 7821.274807][ T253] netlink_sendmsg+0x723/0xbe0 [ 7821.274807][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7821.274807][ T253] ___sys_sendmsg+0xee/0x170 [ 7821.274807][ T253] __sys_sendmsg+0xcd/0x170 [ 7821.274807][ T253] do_syscall_64+0xc6/0x1e0 [ 7821.274807][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7821.274807][ T253] [ 7821.277520][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7821.277520][ T253] netdev_get_by_index+0x5e/0x80 [ 7821.277520][ T253] fib6_nh_init+0x3d8/0x1580 [ 7821.277520][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7821.277520][ T253] ip6_route_add+0x1c/0x140 [ 7821.277520][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7821.277520][ T253] addrconf_add_dev+0xe2/0x170 [ 7821.277520][ T253] inet6_addr_add+0x12f/0xa40 [ 7821.277520][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7821.277520][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7821.277520][ T253] netlink_rcv_skb+0x130/0x360 [ 7821.277520][ T253] netlink_unicast+0x449/0x710 [ 7821.277520][ T253] netlink_sendmsg+0x723/0xbe0 [ 7821.277520][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7821.277520][ T253] ___sys_sendmsg+0xee/0x170 [ 7821.277520][ T253] __sys_sendmsg+0xcd/0x170 [ 7821.277520][ T253] do_syscall_64+0xc6/0x1e0 [ 7821.277520][ T253] [ 7821.280172][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7821.280172][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7821.280172][ T253] ipv6_find_idev+0x102/0x170 [ 7821.280172][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7821.280172][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7821.280172][ T253] netlink_rcv_skb+0x130/0x360 [ 7821.280172][ T253] netlink_unicast+0x449/0x710 [ 7821.280172][ T253] netlink_sendmsg+0x723/0xbe0 [ 7821.280172][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7821.280172][ T253] ___sys_sendmsg+0xee/0x170 [ 7821.280172][ T253] __sys_sendmsg+0xcd/0x170 [ 7821.280172][ T253] do_syscall_64+0xc6/0x1e0 [ 7821.280172][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7821.280172][ T253] [ 7821.282263][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7821.282263][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7821.282263][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7821.282263][ T253] ipv6_find_idev+0x102/0x170 [ 7821.282263][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7821.282263][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7821.282263][ T253] netlink_rcv_skb+0x130/0x360 [ 7821.282263][ T253] netlink_unicast+0x449/0x710 [ 7821.282263][ T253] netlink_sendmsg+0x723/0xbe0 [ 7821.282263][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7821.282263][ T253] ___sys_sendmsg+0xee/0x170 [ 7821.282263][ T253] __sys_sendmsg+0xcd/0x170 [ 7821.282263][ T253] do_syscall_64+0xc6/0x1e0 [ 7821.282263][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7821.282263][ T253] [ 7831.522308][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7831.522805][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7831.522805][ T253] dst_init+0x84/0x4a0 [ 7831.522805][ T253] dst_alloc+0x97/0x150 [ 7831.522805][ T253] ip6_dst_alloc+0x23/0x90 [ 7831.522805][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7831.522805][ T253] ip6_pol_route+0x56f/0x840 [ 7831.522805][ T253] fib6_rule_lookup+0x334/0x630 [ 7831.522805][ T253] ip6_route_output_flags+0x259/0x480 [ 7831.522805][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7831.522805][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7831.522805][ T253] netlink_rcv_skb+0x130/0x360 [ 7831.522805][ T253] netlink_unicast+0x449/0x710 [ 7831.522805][ T253] netlink_sendmsg+0x723/0xbe0 [ 7831.522805][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7831.522805][ T253] ___sys_sendmsg+0xee/0x170 [ 7831.522805][ T253] __sys_sendmsg+0xcd/0x170 [ 7831.522805][ T253] do_syscall_64+0xc6/0x1e0 [ 7831.522805][ T253] [ 7831.525458][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7831.525458][ T253] netdev_get_by_index+0x5e/0x80 [ 7831.525458][ T253] fib6_nh_init+0x3d8/0x1580 [ 7831.525458][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7831.525458][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7831.525458][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7831.525458][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7831.525458][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7831.525458][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7831.525458][ T253] addrconf_dad_begin+0x310/0x670 [ 7831.525458][ T253] addrconf_dad_work+0x10b/0xab0 [ 7831.525458][ T253] process_one_work+0x84d/0x18a0 [ 7831.525458][ T253] worker_thread+0x587/0xd30 [ 7831.525458][ T253] kthread+0x28a/0x350 [ 7831.525458][ T253] ret_from_fork+0x31/0x70 [ 7831.525458][ T253] ret_from_fork_asm+0x1a/0x30 [ 7831.525458][ T253] [ 7831.528043][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7831.528043][ T253] netdev_get_by_index+0x5e/0x80 [ 7831.528043][ T253] fib6_nh_init+0x3d8/0x1580 [ 7831.528043][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7831.528043][ T253] ip6_route_add+0x1c/0x140 [ 7831.528043][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7831.528043][ T253] inet6_addr_add+0x4f8/0xa40 [ 7831.528043][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7831.528043][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7831.528043][ T253] netlink_rcv_skb+0x130/0x360 [ 7831.528043][ T253] netlink_unicast+0x449/0x710 [ 7831.528043][ T253] netlink_sendmsg+0x723/0xbe0 [ 7831.528043][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7831.528043][ T253] ___sys_sendmsg+0xee/0x170 [ 7831.528043][ T253] __sys_sendmsg+0xcd/0x170 [ 7831.528043][ T253] do_syscall_64+0xc6/0x1e0 [ 7831.528043][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7831.528043][ T253] [ 7831.530748][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7831.530748][ T253] netdev_get_by_index+0x5e/0x80 [ 7831.530748][ T253] fib6_nh_init+0x3d8/0x1580 [ 7831.530748][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7831.530748][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7831.530748][ T253] ipv6_add_addr+0x411/0x2000 [ 7831.530748][ T253] inet6_addr_add+0x30e/0xa40 [ 7831.530748][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7831.530748][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7831.530748][ T253] netlink_rcv_skb+0x130/0x360 [ 7831.530748][ T253] netlink_unicast+0x449/0x710 [ 7831.530748][ T253] netlink_sendmsg+0x723/0xbe0 [ 7831.530748][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7831.530748][ T253] ___sys_sendmsg+0xee/0x170 [ 7831.530748][ T253] __sys_sendmsg+0xcd/0x170 [ 7831.530748][ T253] do_syscall_64+0xc6/0x1e0 [ 7831.530748][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7831.530748][ T253] [ 7831.533460][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7831.533460][ T253] netdev_get_by_index+0x5e/0x80 [ 7831.533460][ T253] fib6_nh_init+0x3d8/0x1580 [ 7831.533460][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7831.533460][ T253] ip6_route_add+0x1c/0x140 [ 7831.533460][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7831.533460][ T253] addrconf_add_dev+0xe2/0x170 [ 7831.533460][ T253] inet6_addr_add+0x12f/0xa40 [ 7831.533460][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7831.533460][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7831.533460][ T253] netlink_rcv_skb+0x130/0x360 [ 7831.533460][ T253] netlink_unicast+0x449/0x710 [ 7831.533460][ T253] netlink_sendmsg+0x723/0xbe0 [ 7831.533460][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7831.533460][ T253] ___sys_sendmsg+0xee/0x170 [ 7831.533460][ T253] __sys_sendmsg+0xcd/0x170 [ 7831.533460][ T253] do_syscall_64+0xc6/0x1e0 [ 7831.533460][ T253] [ 7831.536116][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7831.536116][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7831.536116][ T253] ipv6_find_idev+0x102/0x170 [ 7831.536116][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7831.536116][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7831.536116][ T253] netlink_rcv_skb+0x130/0x360 [ 7831.536116][ T253] netlink_unicast+0x449/0x710 [ 7831.536116][ T253] netlink_sendmsg+0x723/0xbe0 [ 7831.536116][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7831.536116][ T253] ___sys_sendmsg+0xee/0x170 [ 7831.536116][ T253] __sys_sendmsg+0xcd/0x170 [ 7831.536116][ T253] do_syscall_64+0xc6/0x1e0 [ 7831.536116][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7831.536116][ T253] [ 7831.538198][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7831.538198][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7831.538198][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7831.538198][ T253] ipv6_find_idev+0x102/0x170 [ 7831.538198][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7831.538198][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7831.538198][ T253] netlink_rcv_skb+0x130/0x360 [ 7831.538198][ T253] netlink_unicast+0x449/0x710 [ 7831.538198][ T253] netlink_sendmsg+0x723/0xbe0 [ 7831.538198][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7831.538198][ T253] ___sys_sendmsg+0xee/0x170 [ 7831.538198][ T253] __sys_sendmsg+0xcd/0x170 [ 7831.538198][ T253] do_syscall_64+0xc6/0x1e0 [ 7831.538198][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7831.538198][ T253] [ 7841.786295][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7841.786784][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7841.786784][ T253] dst_init+0x84/0x4a0 [ 7841.786784][ T253] dst_alloc+0x97/0x150 [ 7841.786784][ T253] ip6_dst_alloc+0x23/0x90 [ 7841.786784][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7841.786784][ T253] ip6_pol_route+0x56f/0x840 [ 7841.786784][ T253] fib6_rule_lookup+0x334/0x630 [ 7841.786784][ T253] ip6_route_output_flags+0x259/0x480 [ 7841.786784][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7841.786784][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7841.786784][ T253] netlink_rcv_skb+0x130/0x360 [ 7841.786784][ T253] netlink_unicast+0x449/0x710 [ 7841.786784][ T253] netlink_sendmsg+0x723/0xbe0 [ 7841.786784][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7841.786784][ T253] ___sys_sendmsg+0xee/0x170 [ 7841.786784][ T253] __sys_sendmsg+0xcd/0x170 [ 7841.786784][ T253] do_syscall_64+0xc6/0x1e0 [ 7841.786784][ T253] [ 7841.789020][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7841.789020][ T253] netdev_get_by_index+0x5e/0x80 [ 7841.789020][ T253] fib6_nh_init+0x3d8/0x1580 [ 7841.789020][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7841.789020][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7841.789020][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7841.789020][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7841.789020][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7841.789020][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7841.789020][ T253] addrconf_dad_begin+0x310/0x670 [ 7841.789020][ T253] addrconf_dad_work+0x10b/0xab0 [ 7841.789020][ T253] process_one_work+0x84d/0x18a0 [ 7841.789020][ T253] worker_thread+0x587/0xd30 [ 7841.789020][ T253] kthread+0x28a/0x350 [ 7841.789020][ T253] ret_from_fork+0x31/0x70 [ 7841.789020][ T253] ret_from_fork_asm+0x1a/0x30 [ 7841.789020][ T253] [ 7841.791177][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7841.791177][ T253] netdev_get_by_index+0x5e/0x80 [ 7841.791177][ T253] fib6_nh_init+0x3d8/0x1580 [ 7841.791177][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7841.791177][ T253] ip6_route_add+0x1c/0x140 [ 7841.791177][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7841.791177][ T253] inet6_addr_add+0x4f8/0xa40 [ 7841.791177][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7841.791177][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7841.791177][ T253] netlink_rcv_skb+0x130/0x360 [ 7841.791177][ T253] netlink_unicast+0x449/0x710 [ 7841.791177][ T253] netlink_sendmsg+0x723/0xbe0 [ 7841.791177][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7841.791177][ T253] ___sys_sendmsg+0xee/0x170 [ 7841.791177][ T253] __sys_sendmsg+0xcd/0x170 [ 7841.791177][ T253] do_syscall_64+0xc6/0x1e0 [ 7841.791177][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7841.791177][ T253] [ 7841.793442][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7841.793442][ T253] netdev_get_by_index+0x5e/0x80 [ 7841.793442][ T253] fib6_nh_init+0x3d8/0x1580 [ 7841.793442][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7841.793442][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7841.793442][ T253] ipv6_add_addr+0x411/0x2000 [ 7841.793442][ T253] inet6_addr_add+0x30e/0xa40 [ 7841.793442][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7841.793442][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7841.793442][ T253] netlink_rcv_skb+0x130/0x360 [ 7841.793442][ T253] netlink_unicast+0x449/0x710 [ 7841.793442][ T253] netlink_sendmsg+0x723/0xbe0 [ 7841.793442][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7841.793442][ T253] ___sys_sendmsg+0xee/0x170 [ 7841.793442][ T253] __sys_sendmsg+0xcd/0x170 [ 7841.793442][ T253] do_syscall_64+0xc6/0x1e0 [ 7841.793442][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7841.793442][ T253] [ 7841.795693][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7841.795693][ T253] netdev_get_by_index+0x5e/0x80 [ 7841.795693][ T253] fib6_nh_init+0x3d8/0x1580 [ 7841.795693][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7841.795693][ T253] ip6_route_add+0x1c/0x140 [ 7841.795693][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7841.795693][ T253] addrconf_add_dev+0xe2/0x170 [ 7841.795693][ T253] inet6_addr_add+0x12f/0xa40 [ 7841.795693][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7841.795693][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7841.795693][ T253] netlink_rcv_skb+0x130/0x360 [ 7841.795693][ T253] netlink_unicast+0x449/0x710 [ 7841.795693][ T253] netlink_sendmsg+0x723/0xbe0 [ 7841.795693][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7841.795693][ T253] ___sys_sendmsg+0xee/0x170 [ 7841.795693][ T253] __sys_sendmsg+0xcd/0x170 [ 7841.795693][ T253] do_syscall_64+0xc6/0x1e0 [ 7841.795693][ T253] [ 7841.797906][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7841.797906][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7841.797906][ T253] ipv6_find_idev+0x102/0x170 [ 7841.797906][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7841.797906][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7841.797906][ T253] netlink_rcv_skb+0x130/0x360 [ 7841.797906][ T253] netlink_unicast+0x449/0x710 [ 7841.797906][ T253] netlink_sendmsg+0x723/0xbe0 [ 7841.797906][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7841.797906][ T253] ___sys_sendmsg+0xee/0x170 [ 7841.797906][ T253] __sys_sendmsg+0xcd/0x170 [ 7841.797906][ T253] do_syscall_64+0xc6/0x1e0 [ 7841.797906][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7841.797906][ T253] [ 7841.799641][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7841.799641][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7841.799641][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7841.799641][ T253] ipv6_find_idev+0x102/0x170 [ 7841.799641][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7841.799641][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7841.799641][ T253] netlink_rcv_skb+0x130/0x360 [ 7841.799641][ T253] netlink_unicast+0x449/0x710 [ 7841.799641][ T253] netlink_sendmsg+0x723/0xbe0 [ 7841.799641][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7841.799641][ T253] ___sys_sendmsg+0xee/0x170 [ 7841.799641][ T253] __sys_sendmsg+0xcd/0x170 [ 7841.799641][ T253] do_syscall_64+0xc6/0x1e0 [ 7841.799641][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7841.799641][ T253] [ 7851.866244][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7851.866738][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7851.866738][ T253] dst_init+0x84/0x4a0 [ 7851.866738][ T253] dst_alloc+0x97/0x150 [ 7851.866738][ T253] ip6_dst_alloc+0x23/0x90 [ 7851.866738][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7851.866738][ T253] ip6_pol_route+0x56f/0x840 [ 7851.866738][ T253] fib6_rule_lookup+0x334/0x630 [ 7851.866738][ T253] ip6_route_output_flags+0x259/0x480 [ 7851.866738][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7851.866738][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7851.866738][ T253] netlink_rcv_skb+0x130/0x360 [ 7851.866738][ T253] netlink_unicast+0x449/0x710 [ 7851.866738][ T253] netlink_sendmsg+0x723/0xbe0 [ 7851.866738][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7851.866738][ T253] ___sys_sendmsg+0xee/0x170 [ 7851.866738][ T253] __sys_sendmsg+0xcd/0x170 [ 7851.866738][ T253] do_syscall_64+0xc6/0x1e0 [ 7851.866738][ T253] [ 7851.869290][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7851.869290][ T253] netdev_get_by_index+0x5e/0x80 [ 7851.869290][ T253] fib6_nh_init+0x3d8/0x1580 [ 7851.869290][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7851.869290][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7851.869290][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7851.869290][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7851.869290][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7851.869290][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7851.869290][ T253] addrconf_dad_begin+0x310/0x670 [ 7851.869290][ T253] addrconf_dad_work+0x10b/0xab0 [ 7851.869290][ T253] process_one_work+0x84d/0x18a0 [ 7851.869290][ T253] worker_thread+0x587/0xd30 [ 7851.869290][ T253] kthread+0x28a/0x350 [ 7851.869290][ T253] ret_from_fork+0x31/0x70 [ 7851.869290][ T253] ret_from_fork_asm+0x1a/0x30 [ 7851.869290][ T253] [ 7851.871701][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7851.871701][ T253] netdev_get_by_index+0x5e/0x80 [ 7851.871701][ T253] fib6_nh_init+0x3d8/0x1580 [ 7851.871701][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7851.871701][ T253] ip6_route_add+0x1c/0x140 [ 7851.871701][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7851.871701][ T253] inet6_addr_add+0x4f8/0xa40 [ 7851.871701][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7851.871701][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7851.871701][ T253] netlink_rcv_skb+0x130/0x360 [ 7851.871701][ T253] netlink_unicast+0x449/0x710 [ 7851.871701][ T253] netlink_sendmsg+0x723/0xbe0 [ 7851.871701][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7851.871701][ T253] ___sys_sendmsg+0xee/0x170 [ 7851.871701][ T253] __sys_sendmsg+0xcd/0x170 [ 7851.871701][ T253] do_syscall_64+0xc6/0x1e0 [ 7851.871701][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7851.871701][ T253] [ 7851.874183][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7851.874183][ T253] netdev_get_by_index+0x5e/0x80 [ 7851.874183][ T253] fib6_nh_init+0x3d8/0x1580 [ 7851.874183][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7851.874183][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7851.874183][ T253] ipv6_add_addr+0x411/0x2000 [ 7851.874183][ T253] inet6_addr_add+0x30e/0xa40 [ 7851.874183][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7851.874183][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7851.874183][ T253] netlink_rcv_skb+0x130/0x360 [ 7851.874183][ T253] netlink_unicast+0x449/0x710 [ 7851.874183][ T253] netlink_sendmsg+0x723/0xbe0 [ 7851.874183][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7851.874183][ T253] ___sys_sendmsg+0xee/0x170 [ 7851.874183][ T253] __sys_sendmsg+0xcd/0x170 [ 7851.874183][ T253] do_syscall_64+0xc6/0x1e0 [ 7851.874183][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7851.874183][ T253] [ 7851.876661][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7851.876661][ T253] netdev_get_by_index+0x5e/0x80 [ 7851.876661][ T253] fib6_nh_init+0x3d8/0x1580 [ 7851.876661][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7851.876661][ T253] ip6_route_add+0x1c/0x140 [ 7851.876661][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7851.876661][ T253] addrconf_add_dev+0xe2/0x170 [ 7851.876661][ T253] inet6_addr_add+0x12f/0xa40 [ 7851.876661][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7851.876661][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7851.876661][ T253] netlink_rcv_skb+0x130/0x360 [ 7851.876661][ T253] netlink_unicast+0x449/0x710 [ 7851.876661][ T253] netlink_sendmsg+0x723/0xbe0 [ 7851.876661][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7851.876661][ T253] ___sys_sendmsg+0xee/0x170 [ 7851.876661][ T253] __sys_sendmsg+0xcd/0x170 [ 7851.876661][ T253] do_syscall_64+0xc6/0x1e0 [ 7851.876661][ T253] [ 7851.879089][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7851.879089][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7851.879089][ T253] ipv6_find_idev+0x102/0x170 [ 7851.879089][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7851.879089][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7851.879089][ T253] netlink_rcv_skb+0x130/0x360 [ 7851.879089][ T253] netlink_unicast+0x449/0x710 [ 7851.879089][ T253] netlink_sendmsg+0x723/0xbe0 [ 7851.879089][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7851.879089][ T253] ___sys_sendmsg+0xee/0x170 [ 7851.879089][ T253] __sys_sendmsg+0xcd/0x170 [ 7851.879089][ T253] do_syscall_64+0xc6/0x1e0 [ 7851.879089][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7851.879089][ T253] [ 7851.880994][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7851.880994][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7851.880994][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7851.880994][ T253] ipv6_find_idev+0x102/0x170 [ 7851.880994][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7851.880994][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7851.880994][ T253] netlink_rcv_skb+0x130/0x360 [ 7851.880994][ T253] netlink_unicast+0x449/0x710 [ 7851.880994][ T253] netlink_sendmsg+0x723/0xbe0 [ 7851.880994][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7851.880994][ T253] ___sys_sendmsg+0xee/0x170 [ 7851.880994][ T253] __sys_sendmsg+0xcd/0x170 [ 7851.880994][ T253] do_syscall_64+0xc6/0x1e0 [ 7851.880994][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7851.880994][ T253] [ 7862.010319][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7862.010765][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7862.010765][ T253] dst_init+0x84/0x4a0 [ 7862.010765][ T253] dst_alloc+0x97/0x150 [ 7862.010765][ T253] ip6_dst_alloc+0x23/0x90 [ 7862.010765][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7862.010765][ T253] ip6_pol_route+0x56f/0x840 [ 7862.010765][ T253] fib6_rule_lookup+0x334/0x630 [ 7862.010765][ T253] ip6_route_output_flags+0x259/0x480 [ 7862.010765][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7862.010765][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7862.010765][ T253] netlink_rcv_skb+0x130/0x360 [ 7862.010765][ T253] netlink_unicast+0x449/0x710 [ 7862.010765][ T253] netlink_sendmsg+0x723/0xbe0 [ 7862.010765][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7862.010765][ T253] ___sys_sendmsg+0xee/0x170 [ 7862.010765][ T253] __sys_sendmsg+0xcd/0x170 [ 7862.010765][ T253] do_syscall_64+0xc6/0x1e0 [ 7862.010765][ T253] [ 7862.012975][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7862.012975][ T253] netdev_get_by_index+0x5e/0x80 [ 7862.012975][ T253] fib6_nh_init+0x3d8/0x1580 [ 7862.012975][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7862.012975][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7862.012975][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7862.012975][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7862.012975][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7862.012975][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7862.012975][ T253] addrconf_dad_begin+0x310/0x670 [ 7862.012975][ T253] addrconf_dad_work+0x10b/0xab0 [ 7862.012975][ T253] process_one_work+0x84d/0x18a0 [ 7862.012975][ T253] worker_thread+0x587/0xd30 [ 7862.012975][ T253] kthread+0x28a/0x350 [ 7862.012975][ T253] ret_from_fork+0x31/0x70 [ 7862.012975][ T253] ret_from_fork_asm+0x1a/0x30 [ 7862.012975][ T253] [ 7862.015163][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7862.015163][ T253] netdev_get_by_index+0x5e/0x80 [ 7862.015163][ T253] fib6_nh_init+0x3d8/0x1580 [ 7862.015163][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7862.015163][ T253] ip6_route_add+0x1c/0x140 [ 7862.015163][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7862.015163][ T253] inet6_addr_add+0x4f8/0xa40 [ 7862.015163][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7862.015163][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7862.015163][ T253] netlink_rcv_skb+0x130/0x360 [ 7862.015163][ T253] netlink_unicast+0x449/0x710 [ 7862.015163][ T253] netlink_sendmsg+0x723/0xbe0 [ 7862.015163][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7862.015163][ T253] ___sys_sendmsg+0xee/0x170 [ 7862.015163][ T253] __sys_sendmsg+0xcd/0x170 [ 7862.015163][ T253] do_syscall_64+0xc6/0x1e0 [ 7862.015163][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7862.015163][ T253] [ 7862.017451][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7862.017451][ T253] netdev_get_by_index+0x5e/0x80 [ 7862.017451][ T253] fib6_nh_init+0x3d8/0x1580 [ 7862.017451][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7862.017451][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7862.017451][ T253] ipv6_add_addr+0x411/0x2000 [ 7862.017451][ T253] inet6_addr_add+0x30e/0xa40 [ 7862.017451][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7862.017451][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7862.017451][ T253] netlink_rcv_skb+0x130/0x360 [ 7862.017451][ T253] netlink_unicast+0x449/0x710 [ 7862.017451][ T253] netlink_sendmsg+0x723/0xbe0 [ 7862.017451][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7862.017451][ T253] ___sys_sendmsg+0xee/0x170 [ 7862.017451][ T253] __sys_sendmsg+0xcd/0x170 [ 7862.017451][ T253] do_syscall_64+0xc6/0x1e0 [ 7862.017451][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7862.017451][ T253] [ 7862.019717][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7862.019717][ T253] netdev_get_by_index+0x5e/0x80 [ 7862.019717][ T253] fib6_nh_init+0x3d8/0x1580 [ 7862.019717][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7862.019717][ T253] ip6_route_add+0x1c/0x140 [ 7862.019717][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7862.019717][ T253] addrconf_add_dev+0xe2/0x170 [ 7862.019717][ T253] inet6_addr_add+0x12f/0xa40 [ 7862.019717][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7862.019717][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7862.019717][ T253] netlink_rcv_skb+0x130/0x360 [ 7862.019717][ T253] netlink_unicast+0x449/0x710 [ 7862.019717][ T253] netlink_sendmsg+0x723/0xbe0 [ 7862.019717][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7862.019717][ T253] ___sys_sendmsg+0xee/0x170 [ 7862.019717][ T253] __sys_sendmsg+0xcd/0x170 [ 7862.019717][ T253] do_syscall_64+0xc6/0x1e0 [ 7862.019717][ T253] [ 7862.021938][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7862.021938][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7862.021938][ T253] ipv6_find_idev+0x102/0x170 [ 7862.021938][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7862.021938][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7862.021938][ T253] netlink_rcv_skb+0x130/0x360 [ 7862.021938][ T253] netlink_unicast+0x449/0x710 [ 7862.021938][ T253] netlink_sendmsg+0x723/0xbe0 [ 7862.021938][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7862.021938][ T253] ___sys_sendmsg+0xee/0x170 [ 7862.021938][ T253] __sys_sendmsg+0xcd/0x170 [ 7862.021938][ T253] do_syscall_64+0xc6/0x1e0 [ 7862.021938][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7862.021938][ T253] [ 7862.023687][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7862.023687][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7862.023687][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7862.023687][ T253] ipv6_find_idev+0x102/0x170 [ 7862.023687][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7862.023687][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7862.023687][ T253] netlink_rcv_skb+0x130/0x360 [ 7862.023687][ T253] netlink_unicast+0x449/0x710 [ 7862.023687][ T253] netlink_sendmsg+0x723/0xbe0 [ 7862.023687][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7862.023687][ T253] ___sys_sendmsg+0xee/0x170 [ 7862.023687][ T253] __sys_sendmsg+0xcd/0x170 [ 7862.023687][ T253] do_syscall_64+0xc6/0x1e0 [ 7862.023687][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7862.023687][ T253] [ 7872.266314][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7872.266813][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7872.266813][ T253] dst_init+0x84/0x4a0 [ 7872.266813][ T253] dst_alloc+0x97/0x150 [ 7872.266813][ T253] ip6_dst_alloc+0x23/0x90 [ 7872.266813][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7872.266813][ T253] ip6_pol_route+0x56f/0x840 [ 7872.266813][ T253] fib6_rule_lookup+0x334/0x630 [ 7872.266813][ T253] ip6_route_output_flags+0x259/0x480 [ 7872.266813][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7872.266813][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7872.266813][ T253] netlink_rcv_skb+0x130/0x360 [ 7872.266813][ T253] netlink_unicast+0x449/0x710 [ 7872.266813][ T253] netlink_sendmsg+0x723/0xbe0 [ 7872.266813][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7872.266813][ T253] ___sys_sendmsg+0xee/0x170 [ 7872.266813][ T253] __sys_sendmsg+0xcd/0x170 [ 7872.266813][ T253] do_syscall_64+0xc6/0x1e0 [ 7872.266813][ T253] [ 7872.269054][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7872.269054][ T253] netdev_get_by_index+0x5e/0x80 [ 7872.269054][ T253] fib6_nh_init+0x3d8/0x1580 [ 7872.269054][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7872.269054][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7872.269054][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7872.269054][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7872.269054][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7872.269054][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7872.269054][ T253] addrconf_dad_begin+0x310/0x670 [ 7872.269054][ T253] addrconf_dad_work+0x10b/0xab0 [ 7872.269054][ T253] process_one_work+0x84d/0x18a0 [ 7872.269054][ T253] worker_thread+0x587/0xd30 [ 7872.269054][ T253] kthread+0x28a/0x350 [ 7872.269054][ T253] ret_from_fork+0x31/0x70 [ 7872.269054][ T253] ret_from_fork_asm+0x1a/0x30 [ 7872.269054][ T253] [ 7872.271219][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7872.271219][ T253] netdev_get_by_index+0x5e/0x80 [ 7872.271219][ T253] fib6_nh_init+0x3d8/0x1580 [ 7872.271219][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7872.271219][ T253] ip6_route_add+0x1c/0x140 [ 7872.271219][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7872.271219][ T253] inet6_addr_add+0x4f8/0xa40 [ 7872.271219][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7872.271219][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7872.271219][ T253] netlink_rcv_skb+0x130/0x360 [ 7872.271219][ T253] netlink_unicast+0x449/0x710 [ 7872.271219][ T253] netlink_sendmsg+0x723/0xbe0 [ 7872.271219][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7872.271219][ T253] ___sys_sendmsg+0xee/0x170 [ 7872.271219][ T253] __sys_sendmsg+0xcd/0x170 [ 7872.271219][ T253] do_syscall_64+0xc6/0x1e0 [ 7872.271219][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7872.271219][ T253] [ 7872.273494][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7872.273494][ T253] netdev_get_by_index+0x5e/0x80 [ 7872.273494][ T253] fib6_nh_init+0x3d8/0x1580 [ 7872.273494][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7872.273494][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7872.273494][ T253] ipv6_add_addr+0x411/0x2000 [ 7872.273494][ T253] inet6_addr_add+0x30e/0xa40 [ 7872.273494][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7872.273494][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7872.273494][ T253] netlink_rcv_skb+0x130/0x360 [ 7872.273494][ T253] netlink_unicast+0x449/0x710 [ 7872.273494][ T253] netlink_sendmsg+0x723/0xbe0 [ 7872.273494][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7872.273494][ T253] ___sys_sendmsg+0xee/0x170 [ 7872.273494][ T253] __sys_sendmsg+0xcd/0x170 [ 7872.273494][ T253] do_syscall_64+0xc6/0x1e0 [ 7872.273494][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7872.273494][ T253] [ 7872.275748][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7872.275748][ T253] netdev_get_by_index+0x5e/0x80 [ 7872.275748][ T253] fib6_nh_init+0x3d8/0x1580 [ 7872.275748][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7872.275748][ T253] ip6_route_add+0x1c/0x140 [ 7872.275748][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7872.275748][ T253] addrconf_add_dev+0xe2/0x170 [ 7872.275748][ T253] inet6_addr_add+0x12f/0xa40 [ 7872.275748][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7872.275748][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7872.275748][ T253] netlink_rcv_skb+0x130/0x360 [ 7872.275748][ T253] netlink_unicast+0x449/0x710 [ 7872.275748][ T253] netlink_sendmsg+0x723/0xbe0 [ 7872.275748][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7872.275748][ T253] ___sys_sendmsg+0xee/0x170 [ 7872.275748][ T253] __sys_sendmsg+0xcd/0x170 [ 7872.275748][ T253] do_syscall_64+0xc6/0x1e0 [ 7872.275748][ T253] [ 7872.277972][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7872.277972][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7872.277972][ T253] ipv6_find_idev+0x102/0x170 [ 7872.277972][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7872.277972][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7872.277972][ T253] netlink_rcv_skb+0x130/0x360 [ 7872.277972][ T253] netlink_unicast+0x449/0x710 [ 7872.277972][ T253] netlink_sendmsg+0x723/0xbe0 [ 7872.277972][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7872.277972][ T253] ___sys_sendmsg+0xee/0x170 [ 7872.277972][ T253] __sys_sendmsg+0xcd/0x170 [ 7872.277972][ T253] do_syscall_64+0xc6/0x1e0 [ 7872.277972][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7872.277972][ T253] [ 7872.279714][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7872.279714][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7872.279714][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7872.279714][ T253] ipv6_find_idev+0x102/0x170 [ 7872.279714][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7872.279714][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7872.279714][ T253] netlink_rcv_skb+0x130/0x360 [ 7872.279714][ T253] netlink_unicast+0x449/0x710 [ 7872.279714][ T253] netlink_sendmsg+0x723/0xbe0 [ 7872.279714][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7872.279714][ T253] ___sys_sendmsg+0xee/0x170 [ 7872.279714][ T253] __sys_sendmsg+0xcd/0x170 [ 7872.279714][ T253] do_syscall_64+0xc6/0x1e0 [ 7872.279714][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7872.279714][ T253] [ 7882.522338][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7882.522834][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7882.522834][ T253] dst_init+0x84/0x4a0 [ 7882.522834][ T253] dst_alloc+0x97/0x150 [ 7882.522834][ T253] ip6_dst_alloc+0x23/0x90 [ 7882.522834][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7882.522834][ T253] ip6_pol_route+0x56f/0x840 [ 7882.522834][ T253] fib6_rule_lookup+0x334/0x630 [ 7882.522834][ T253] ip6_route_output_flags+0x259/0x480 [ 7882.522834][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7882.522834][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7882.522834][ T253] netlink_rcv_skb+0x130/0x360 [ 7882.522834][ T253] netlink_unicast+0x449/0x710 [ 7882.522834][ T253] netlink_sendmsg+0x723/0xbe0 [ 7882.522834][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7882.522834][ T253] ___sys_sendmsg+0xee/0x170 [ 7882.522834][ T253] __sys_sendmsg+0xcd/0x170 [ 7882.522834][ T253] do_syscall_64+0xc6/0x1e0 [ 7882.522834][ T253] [ 7882.525501][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7882.525501][ T253] netdev_get_by_index+0x5e/0x80 [ 7882.525501][ T253] fib6_nh_init+0x3d8/0x1580 [ 7882.525501][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7882.525501][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7882.525501][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7882.525501][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7882.525501][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7882.525501][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7882.525501][ T253] addrconf_dad_begin+0x310/0x670 [ 7882.525501][ T253] addrconf_dad_work+0x10b/0xab0 [ 7882.525501][ T253] process_one_work+0x84d/0x18a0 [ 7882.525501][ T253] worker_thread+0x587/0xd30 [ 7882.525501][ T253] kthread+0x28a/0x350 [ 7882.525501][ T253] ret_from_fork+0x31/0x70 [ 7882.525501][ T253] ret_from_fork_asm+0x1a/0x30 [ 7882.525501][ T253] [ 7882.528095][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7882.528095][ T253] netdev_get_by_index+0x5e/0x80 [ 7882.528095][ T253] fib6_nh_init+0x3d8/0x1580 [ 7882.528095][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7882.528095][ T253] ip6_route_add+0x1c/0x140 [ 7882.528095][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7882.528095][ T253] inet6_addr_add+0x4f8/0xa40 [ 7882.528095][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7882.528095][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7882.528095][ T253] netlink_rcv_skb+0x130/0x360 [ 7882.528095][ T253] netlink_unicast+0x449/0x710 [ 7882.528095][ T253] netlink_sendmsg+0x723/0xbe0 [ 7882.528095][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7882.528095][ T253] ___sys_sendmsg+0xee/0x170 [ 7882.528095][ T253] __sys_sendmsg+0xcd/0x170 [ 7882.528095][ T253] do_syscall_64+0xc6/0x1e0 [ 7882.528095][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7882.528095][ T253] [ 7882.530798][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7882.530798][ T253] netdev_get_by_index+0x5e/0x80 [ 7882.530798][ T253] fib6_nh_init+0x3d8/0x1580 [ 7882.530798][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7882.530798][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7882.530798][ T253] ipv6_add_addr+0x411/0x2000 [ 7882.530798][ T253] inet6_addr_add+0x30e/0xa40 [ 7882.530798][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7882.530798][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7882.530798][ T253] netlink_rcv_skb+0x130/0x360 [ 7882.530798][ T253] netlink_unicast+0x449/0x710 [ 7882.530798][ T253] netlink_sendmsg+0x723/0xbe0 [ 7882.530798][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7882.530798][ T253] ___sys_sendmsg+0xee/0x170 [ 7882.530798][ T253] __sys_sendmsg+0xcd/0x170 [ 7882.530798][ T253] do_syscall_64+0xc6/0x1e0 [ 7882.530798][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7882.530798][ T253] [ 7882.533524][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7882.533524][ T253] netdev_get_by_index+0x5e/0x80 [ 7882.533524][ T253] fib6_nh_init+0x3d8/0x1580 [ 7882.533524][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7882.533524][ T253] ip6_route_add+0x1c/0x140 [ 7882.533524][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7882.533524][ T253] addrconf_add_dev+0xe2/0x170 [ 7882.533524][ T253] inet6_addr_add+0x12f/0xa40 [ 7882.533524][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7882.533524][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7882.533524][ T253] netlink_rcv_skb+0x130/0x360 [ 7882.533524][ T253] netlink_unicast+0x449/0x710 [ 7882.533524][ T253] netlink_sendmsg+0x723/0xbe0 [ 7882.533524][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7882.533524][ T253] ___sys_sendmsg+0xee/0x170 [ 7882.533524][ T253] __sys_sendmsg+0xcd/0x170 [ 7882.533524][ T253] do_syscall_64+0xc6/0x1e0 [ 7882.533524][ T253] [ 7882.536194][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7882.536194][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7882.536194][ T253] ipv6_find_idev+0x102/0x170 [ 7882.536194][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7882.536194][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7882.536194][ T253] netlink_rcv_skb+0x130/0x360 [ 7882.536194][ T253] netlink_unicast+0x449/0x710 [ 7882.536194][ T253] netlink_sendmsg+0x723/0xbe0 [ 7882.536194][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7882.536194][ T253] ___sys_sendmsg+0xee/0x170 [ 7882.536194][ T253] __sys_sendmsg+0xcd/0x170 [ 7882.536194][ T253] do_syscall_64+0xc6/0x1e0 [ 7882.536194][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7882.536194][ T253] [ 7882.538274][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7882.538274][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7882.538274][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7882.538274][ T253] ipv6_find_idev+0x102/0x170 [ 7882.538274][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7882.538274][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7882.538274][ T253] netlink_rcv_skb+0x130/0x360 [ 7882.538274][ T253] netlink_unicast+0x449/0x710 [ 7882.538274][ T253] netlink_sendmsg+0x723/0xbe0 [ 7882.538274][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7882.538274][ T253] ___sys_sendmsg+0xee/0x170 [ 7882.538274][ T253] __sys_sendmsg+0xcd/0x170 [ 7882.538274][ T253] do_syscall_64+0xc6/0x1e0 [ 7882.538274][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7882.538274][ T253] [ 7892.786387][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7892.786890][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7892.786890][ T253] dst_init+0x84/0x4a0 [ 7892.786890][ T253] dst_alloc+0x97/0x150 [ 7892.786890][ T253] ip6_dst_alloc+0x23/0x90 [ 7892.786890][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7892.786890][ T253] ip6_pol_route+0x56f/0x840 [ 7892.786890][ T253] fib6_rule_lookup+0x334/0x630 [ 7892.786890][ T253] ip6_route_output_flags+0x259/0x480 [ 7892.786890][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7892.786890][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7892.786890][ T253] netlink_rcv_skb+0x130/0x360 [ 7892.786890][ T253] netlink_unicast+0x449/0x710 [ 7892.786890][ T253] netlink_sendmsg+0x723/0xbe0 [ 7892.786890][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7892.786890][ T253] ___sys_sendmsg+0xee/0x170 [ 7892.786890][ T253] __sys_sendmsg+0xcd/0x170 [ 7892.786890][ T253] do_syscall_64+0xc6/0x1e0 [ 7892.786890][ T253] [ 7892.789546][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7892.789546][ T253] netdev_get_by_index+0x5e/0x80 [ 7892.789546][ T253] fib6_nh_init+0x3d8/0x1580 [ 7892.789546][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7892.789546][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7892.789546][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7892.789546][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7892.789546][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7892.789546][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7892.789546][ T253] addrconf_dad_begin+0x310/0x670 [ 7892.789546][ T253] addrconf_dad_work+0x10b/0xab0 [ 7892.789546][ T253] process_one_work+0x84d/0x18a0 [ 7892.789546][ T253] worker_thread+0x587/0xd30 [ 7892.789546][ T253] kthread+0x28a/0x350 [ 7892.789546][ T253] ret_from_fork+0x31/0x70 [ 7892.789546][ T253] ret_from_fork_asm+0x1a/0x30 [ 7892.789546][ T253] [ 7892.792134][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7892.792134][ T253] netdev_get_by_index+0x5e/0x80 [ 7892.792134][ T253] fib6_nh_init+0x3d8/0x1580 [ 7892.792134][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7892.792134][ T253] ip6_route_add+0x1c/0x140 [ 7892.792134][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7892.792134][ T253] inet6_addr_add+0x4f8/0xa40 [ 7892.792134][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7892.792134][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7892.792134][ T253] netlink_rcv_skb+0x130/0x360 [ 7892.792134][ T253] netlink_unicast+0x449/0x710 [ 7892.792134][ T253] netlink_sendmsg+0x723/0xbe0 [ 7892.792134][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7892.792134][ T253] ___sys_sendmsg+0xee/0x170 [ 7892.792134][ T253] __sys_sendmsg+0xcd/0x170 [ 7892.792134][ T253] do_syscall_64+0xc6/0x1e0 [ 7892.792134][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7892.792134][ T253] [ 7892.794843][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7892.794843][ T253] netdev_get_by_index+0x5e/0x80 [ 7892.794843][ T253] fib6_nh_init+0x3d8/0x1580 [ 7892.794843][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7892.794843][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7892.794843][ T253] ipv6_add_addr+0x411/0x2000 [ 7892.794843][ T253] inet6_addr_add+0x30e/0xa40 [ 7892.794843][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7892.794843][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7892.794843][ T253] netlink_rcv_skb+0x130/0x360 [ 7892.794843][ T253] netlink_unicast+0x449/0x710 [ 7892.794843][ T253] netlink_sendmsg+0x723/0xbe0 [ 7892.794843][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7892.794843][ T253] ___sys_sendmsg+0xee/0x170 [ 7892.794843][ T253] __sys_sendmsg+0xcd/0x170 [ 7892.794843][ T253] do_syscall_64+0xc6/0x1e0 [ 7892.794843][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7892.794843][ T253] [ 7892.797543][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7892.797543][ T253] netdev_get_by_index+0x5e/0x80 [ 7892.797543][ T253] fib6_nh_init+0x3d8/0x1580 [ 7892.797543][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7892.797543][ T253] ip6_route_add+0x1c/0x140 [ 7892.797543][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7892.797543][ T253] addrconf_add_dev+0xe2/0x170 [ 7892.797543][ T253] inet6_addr_add+0x12f/0xa40 [ 7892.797543][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7892.797543][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7892.797543][ T253] netlink_rcv_skb+0x130/0x360 [ 7892.797543][ T253] netlink_unicast+0x449/0x710 [ 7892.797543][ T253] netlink_sendmsg+0x723/0xbe0 [ 7892.797543][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7892.797543][ T253] ___sys_sendmsg+0xee/0x170 [ 7892.797543][ T253] __sys_sendmsg+0xcd/0x170 [ 7892.797543][ T253] do_syscall_64+0xc6/0x1e0 [ 7892.797543][ T253] [ 7892.800203][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7892.800203][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7892.800203][ T253] ipv6_find_idev+0x102/0x170 [ 7892.800203][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7892.800203][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7892.800203][ T253] netlink_rcv_skb+0x130/0x360 [ 7892.800203][ T253] netlink_unicast+0x449/0x710 [ 7892.800203][ T253] netlink_sendmsg+0x723/0xbe0 [ 7892.800203][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7892.800203][ T253] ___sys_sendmsg+0xee/0x170 [ 7892.800203][ T253] __sys_sendmsg+0xcd/0x170 [ 7892.800203][ T253] do_syscall_64+0xc6/0x1e0 [ 7892.800203][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7892.800203][ T253] [ 7892.802277][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7892.802277][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7892.802277][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7892.802277][ T253] ipv6_find_idev+0x102/0x170 [ 7892.802277][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7892.802277][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7892.802277][ T253] netlink_rcv_skb+0x130/0x360 [ 7892.802277][ T253] netlink_unicast+0x449/0x710 [ 7892.802277][ T253] netlink_sendmsg+0x723/0xbe0 [ 7892.802277][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7892.802277][ T253] ___sys_sendmsg+0xee/0x170 [ 7892.802277][ T253] __sys_sendmsg+0xcd/0x170 [ 7892.802277][ T253] do_syscall_64+0xc6/0x1e0 [ 7892.802277][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7892.802277][ T253] [ 7903.042322][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7903.042797][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7903.042797][ T253] dst_init+0x84/0x4a0 [ 7903.042797][ T253] dst_alloc+0x97/0x150 [ 7903.042797][ T253] ip6_dst_alloc+0x23/0x90 [ 7903.042797][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7903.042797][ T253] ip6_pol_route+0x56f/0x840 [ 7903.042797][ T253] fib6_rule_lookup+0x334/0x630 [ 7903.042797][ T253] ip6_route_output_flags+0x259/0x480 [ 7903.042797][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7903.042797][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7903.042797][ T253] netlink_rcv_skb+0x130/0x360 [ 7903.042797][ T253] netlink_unicast+0x449/0x710 [ 7903.042797][ T253] netlink_sendmsg+0x723/0xbe0 [ 7903.042797][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7903.042797][ T253] ___sys_sendmsg+0xee/0x170 [ 7903.042797][ T253] __sys_sendmsg+0xcd/0x170 [ 7903.042797][ T253] do_syscall_64+0xc6/0x1e0 [ 7903.042797][ T253] [ 7903.045002][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7903.045002][ T253] netdev_get_by_index+0x5e/0x80 [ 7903.045002][ T253] fib6_nh_init+0x3d8/0x1580 [ 7903.045002][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7903.045002][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7903.045002][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7903.045002][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7903.045002][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7903.045002][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7903.045002][ T253] addrconf_dad_begin+0x310/0x670 [ 7903.045002][ T253] addrconf_dad_work+0x10b/0xab0 [ 7903.045002][ T253] process_one_work+0x84d/0x18a0 [ 7903.045002][ T253] worker_thread+0x587/0xd30 [ 7903.045002][ T253] kthread+0x28a/0x350 [ 7903.045002][ T253] ret_from_fork+0x31/0x70 [ 7903.045002][ T253] ret_from_fork_asm+0x1a/0x30 [ 7903.045002][ T253] [ 7903.047146][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7903.047146][ T253] netdev_get_by_index+0x5e/0x80 [ 7903.047146][ T253] fib6_nh_init+0x3d8/0x1580 [ 7903.047146][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7903.047146][ T253] ip6_route_add+0x1c/0x140 [ 7903.047146][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7903.047146][ T253] inet6_addr_add+0x4f8/0xa40 [ 7903.047146][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7903.047146][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7903.047146][ T253] netlink_rcv_skb+0x130/0x360 [ 7903.047146][ T253] netlink_unicast+0x449/0x710 [ 7903.047146][ T253] netlink_sendmsg+0x723/0xbe0 [ 7903.047146][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7903.047146][ T253] ___sys_sendmsg+0xee/0x170 [ 7903.047146][ T253] __sys_sendmsg+0xcd/0x170 [ 7903.047146][ T253] do_syscall_64+0xc6/0x1e0 [ 7903.047146][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7903.047146][ T253] [ 7903.049419][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7903.049419][ T253] netdev_get_by_index+0x5e/0x80 [ 7903.049419][ T253] fib6_nh_init+0x3d8/0x1580 [ 7903.049419][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7903.049419][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7903.049419][ T253] ipv6_add_addr+0x411/0x2000 [ 7903.049419][ T253] inet6_addr_add+0x30e/0xa40 [ 7903.049419][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7903.049419][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7903.049419][ T253] netlink_rcv_skb+0x130/0x360 [ 7903.049419][ T253] netlink_unicast+0x449/0x710 [ 7903.049419][ T253] netlink_sendmsg+0x723/0xbe0 [ 7903.049419][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7903.049419][ T253] ___sys_sendmsg+0xee/0x170 [ 7903.049419][ T253] __sys_sendmsg+0xcd/0x170 [ 7903.049419][ T253] do_syscall_64+0xc6/0x1e0 [ 7903.049419][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7903.049419][ T253] [ 7903.051936][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7903.051936][ T253] netdev_get_by_index+0x5e/0x80 [ 7903.051936][ T253] fib6_nh_init+0x3d8/0x1580 [ 7903.051936][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7903.051936][ T253] ip6_route_add+0x1c/0x140 [ 7903.051936][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7903.051936][ T253] addrconf_add_dev+0xe2/0x170 [ 7903.051936][ T253] inet6_addr_add+0x12f/0xa40 [ 7903.051936][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7903.051936][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7903.051936][ T253] netlink_rcv_skb+0x130/0x360 [ 7903.051936][ T253] netlink_unicast+0x449/0x710 [ 7903.051936][ T253] netlink_sendmsg+0x723/0xbe0 [ 7903.051936][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7903.051936][ T253] ___sys_sendmsg+0xee/0x170 [ 7903.051936][ T253] __sys_sendmsg+0xcd/0x170 [ 7903.051936][ T253] do_syscall_64+0xc6/0x1e0 [ 7903.051936][ T253] [ 7903.054147][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7903.054147][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7903.054147][ T253] ipv6_find_idev+0x102/0x170 [ 7903.054147][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7903.054147][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7903.054147][ T253] netlink_rcv_skb+0x130/0x360 [ 7903.054147][ T253] netlink_unicast+0x449/0x710 [ 7903.054147][ T253] netlink_sendmsg+0x723/0xbe0 [ 7903.054147][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7903.054147][ T253] ___sys_sendmsg+0xee/0x170 [ 7903.054147][ T253] __sys_sendmsg+0xcd/0x170 [ 7903.054147][ T253] do_syscall_64+0xc6/0x1e0 [ 7903.054147][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7903.054147][ T253] [ 7903.055872][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7903.055872][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7903.055872][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7903.055872][ T253] ipv6_find_idev+0x102/0x170 [ 7903.055872][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7903.055872][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7903.055872][ T253] netlink_rcv_skb+0x130/0x360 [ 7903.055872][ T253] netlink_unicast+0x449/0x710 [ 7903.055872][ T253] netlink_sendmsg+0x723/0xbe0 [ 7903.055872][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7903.055872][ T253] ___sys_sendmsg+0xee/0x170 [ 7903.055872][ T253] __sys_sendmsg+0xcd/0x170 [ 7903.055872][ T253] do_syscall_64+0xc6/0x1e0 [ 7903.055872][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7903.055872][ T253] [ 7913.162328][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7913.162833][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7913.162833][ T253] dst_init+0x84/0x4a0 [ 7913.162833][ T253] dst_alloc+0x97/0x150 [ 7913.162833][ T253] ip6_dst_alloc+0x23/0x90 [ 7913.162833][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7913.162833][ T253] ip6_pol_route+0x56f/0x840 [ 7913.162833][ T253] fib6_rule_lookup+0x334/0x630 [ 7913.162833][ T253] ip6_route_output_flags+0x259/0x480 [ 7913.162833][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7913.162833][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7913.162833][ T253] netlink_rcv_skb+0x130/0x360 [ 7913.162833][ T253] netlink_unicast+0x449/0x710 [ 7913.162833][ T253] netlink_sendmsg+0x723/0xbe0 [ 7913.162833][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7913.162833][ T253] ___sys_sendmsg+0xee/0x170 [ 7913.162833][ T253] __sys_sendmsg+0xcd/0x170 [ 7913.162833][ T253] do_syscall_64+0xc6/0x1e0 [ 7913.162833][ T253] [ 7913.165039][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7913.165039][ T253] netdev_get_by_index+0x5e/0x80 [ 7913.165039][ T253] fib6_nh_init+0x3d8/0x1580 [ 7913.165039][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7913.165039][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7913.165039][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7913.165039][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7913.165039][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7913.165039][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7913.165039][ T253] addrconf_dad_begin+0x310/0x670 [ 7913.165039][ T253] addrconf_dad_work+0x10b/0xab0 [ 7913.165039][ T253] process_one_work+0x84d/0x18a0 [ 7913.165039][ T253] worker_thread+0x587/0xd30 [ 7913.165039][ T253] kthread+0x28a/0x350 [ 7913.165039][ T253] ret_from_fork+0x31/0x70 [ 7913.165039][ T253] ret_from_fork_asm+0x1a/0x30 [ 7913.165039][ T253] [ 7913.167180][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7913.167180][ T253] netdev_get_by_index+0x5e/0x80 [ 7913.167180][ T253] fib6_nh_init+0x3d8/0x1580 [ 7913.167180][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7913.167180][ T253] ip6_route_add+0x1c/0x140 [ 7913.167180][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7913.167180][ T253] inet6_addr_add+0x4f8/0xa40 [ 7913.167180][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7913.167180][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7913.167180][ T253] netlink_rcv_skb+0x130/0x360 [ 7913.167180][ T253] netlink_unicast+0x449/0x710 [ 7913.167180][ T253] netlink_sendmsg+0x723/0xbe0 [ 7913.167180][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7913.167180][ T253] ___sys_sendmsg+0xee/0x170 [ 7913.167180][ T253] __sys_sendmsg+0xcd/0x170 [ 7913.167180][ T253] do_syscall_64+0xc6/0x1e0 [ 7913.167180][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7913.167180][ T253] [ 7913.169421][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7913.169421][ T253] netdev_get_by_index+0x5e/0x80 [ 7913.169421][ T253] fib6_nh_init+0x3d8/0x1580 [ 7913.169421][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7913.169421][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7913.169421][ T253] ipv6_add_addr+0x411/0x2000 [ 7913.169421][ T253] inet6_addr_add+0x30e/0xa40 [ 7913.169421][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7913.169421][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7913.169421][ T253] netlink_rcv_skb+0x130/0x360 [ 7913.169421][ T253] netlink_unicast+0x449/0x710 [ 7913.169421][ T253] netlink_sendmsg+0x723/0xbe0 [ 7913.169421][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7913.169421][ T253] ___sys_sendmsg+0xee/0x170 [ 7913.169421][ T253] __sys_sendmsg+0xcd/0x170 [ 7913.169421][ T253] do_syscall_64+0xc6/0x1e0 [ 7913.169421][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7913.169421][ T253] [ 7913.171658][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7913.171658][ T253] netdev_get_by_index+0x5e/0x80 [ 7913.171658][ T253] fib6_nh_init+0x3d8/0x1580 [ 7913.171658][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7913.171658][ T253] ip6_route_add+0x1c/0x140 [ 7913.171658][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7913.171658][ T253] addrconf_add_dev+0xe2/0x170 [ 7913.171658][ T253] inet6_addr_add+0x12f/0xa40 [ 7913.171658][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7913.171658][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7913.171658][ T253] netlink_rcv_skb+0x130/0x360 [ 7913.171658][ T253] netlink_unicast+0x449/0x710 [ 7913.171658][ T253] netlink_sendmsg+0x723/0xbe0 [ 7913.171658][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7913.171658][ T253] ___sys_sendmsg+0xee/0x170 [ 7913.171658][ T253] __sys_sendmsg+0xcd/0x170 [ 7913.171658][ T253] do_syscall_64+0xc6/0x1e0 [ 7913.171658][ T253] [ 7913.173868][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7913.173868][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7913.173868][ T253] ipv6_find_idev+0x102/0x170 [ 7913.173868][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7913.173868][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7913.173868][ T253] netlink_rcv_skb+0x130/0x360 [ 7913.173868][ T253] netlink_unicast+0x449/0x710 [ 7913.173868][ T253] netlink_sendmsg+0x723/0xbe0 [ 7913.173868][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7913.173868][ T253] ___sys_sendmsg+0xee/0x170 [ 7913.173868][ T253] __sys_sendmsg+0xcd/0x170 [ 7913.173868][ T253] do_syscall_64+0xc6/0x1e0 [ 7913.173868][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7913.173868][ T253] [ 7913.175598][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7913.175598][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7913.175598][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7913.175598][ T253] ipv6_find_idev+0x102/0x170 [ 7913.175598][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7913.175598][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7913.175598][ T253] netlink_rcv_skb+0x130/0x360 [ 7913.175598][ T253] netlink_unicast+0x449/0x710 [ 7913.175598][ T253] netlink_sendmsg+0x723/0xbe0 [ 7913.175598][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7913.175598][ T253] ___sys_sendmsg+0xee/0x170 [ 7913.175598][ T253] __sys_sendmsg+0xcd/0x170 [ 7913.175598][ T253] do_syscall_64+0xc6/0x1e0 [ 7913.175598][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7913.175598][ T253] [ 7923.378312][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7923.378733][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7923.378733][ T253] dst_init+0x84/0x4a0 [ 7923.378733][ T253] dst_alloc+0x97/0x150 [ 7923.378733][ T253] ip6_dst_alloc+0x23/0x90 [ 7923.378733][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7923.378733][ T253] ip6_pol_route+0x56f/0x840 [ 7923.378733][ T253] fib6_rule_lookup+0x334/0x630 [ 7923.378733][ T253] ip6_route_output_flags+0x259/0x480 [ 7923.378733][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7923.378733][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7923.378733][ T253] netlink_rcv_skb+0x130/0x360 [ 7923.378733][ T253] netlink_unicast+0x449/0x710 [ 7923.378733][ T253] netlink_sendmsg+0x723/0xbe0 [ 7923.378733][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7923.378733][ T253] ___sys_sendmsg+0xee/0x170 [ 7923.378733][ T253] __sys_sendmsg+0xcd/0x170 [ 7923.378733][ T253] do_syscall_64+0xc6/0x1e0 [ 7923.378733][ T253] [ 7923.380927][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7923.380927][ T253] netdev_get_by_index+0x5e/0x80 [ 7923.380927][ T253] fib6_nh_init+0x3d8/0x1580 [ 7923.380927][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7923.380927][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7923.380927][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7923.380927][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7923.380927][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7923.380927][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7923.380927][ T253] addrconf_dad_begin+0x310/0x670 [ 7923.380927][ T253] addrconf_dad_work+0x10b/0xab0 [ 7923.380927][ T253] process_one_work+0x84d/0x18a0 [ 7923.380927][ T253] worker_thread+0x587/0xd30 [ 7923.380927][ T253] kthread+0x28a/0x350 [ 7923.380927][ T253] ret_from_fork+0x31/0x70 [ 7923.380927][ T253] ret_from_fork_asm+0x1a/0x30 [ 7923.380927][ T253] [ 7923.383093][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7923.383093][ T253] netdev_get_by_index+0x5e/0x80 [ 7923.383093][ T253] fib6_nh_init+0x3d8/0x1580 [ 7923.383093][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7923.383093][ T253] ip6_route_add+0x1c/0x140 [ 7923.383093][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7923.383093][ T253] inet6_addr_add+0x4f8/0xa40 [ 7923.383093][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7923.383093][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7923.383093][ T253] netlink_rcv_skb+0x130/0x360 [ 7923.383093][ T253] netlink_unicast+0x449/0x710 [ 7923.383093][ T253] netlink_sendmsg+0x723/0xbe0 [ 7923.383093][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7923.383093][ T253] ___sys_sendmsg+0xee/0x170 [ 7923.383093][ T253] __sys_sendmsg+0xcd/0x170 [ 7923.383093][ T253] do_syscall_64+0xc6/0x1e0 [ 7923.383093][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7923.383093][ T253] [ 7923.385341][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7923.385341][ T253] netdev_get_by_index+0x5e/0x80 [ 7923.385341][ T253] fib6_nh_init+0x3d8/0x1580 [ 7923.385341][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7923.385341][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7923.385341][ T253] ipv6_add_addr+0x411/0x2000 [ 7923.385341][ T253] inet6_addr_add+0x30e/0xa40 [ 7923.385341][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7923.385341][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7923.385341][ T253] netlink_rcv_skb+0x130/0x360 [ 7923.385341][ T253] netlink_unicast+0x449/0x710 [ 7923.385341][ T253] netlink_sendmsg+0x723/0xbe0 [ 7923.385341][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7923.385341][ T253] ___sys_sendmsg+0xee/0x170 [ 7923.385341][ T253] __sys_sendmsg+0xcd/0x170 [ 7923.385341][ T253] do_syscall_64+0xc6/0x1e0 [ 7923.385341][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7923.385341][ T253] [ 7923.387575][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7923.387575][ T253] netdev_get_by_index+0x5e/0x80 [ 7923.387575][ T253] fib6_nh_init+0x3d8/0x1580 [ 7923.387575][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7923.387575][ T253] ip6_route_add+0x1c/0x140 [ 7923.387575][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7923.387575][ T253] addrconf_add_dev+0xe2/0x170 [ 7923.387575][ T253] inet6_addr_add+0x12f/0xa40 [ 7923.387575][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7923.387575][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7923.387575][ T253] netlink_rcv_skb+0x130/0x360 [ 7923.387575][ T253] netlink_unicast+0x449/0x710 [ 7923.387575][ T253] netlink_sendmsg+0x723/0xbe0 [ 7923.387575][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7923.387575][ T253] ___sys_sendmsg+0xee/0x170 [ 7923.387575][ T253] __sys_sendmsg+0xcd/0x170 [ 7923.387575][ T253] do_syscall_64+0xc6/0x1e0 [ 7923.387575][ T253] [ 7923.389813][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7923.389813][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7923.389813][ T253] ipv6_find_idev+0x102/0x170 [ 7923.389813][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7923.389813][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7923.389813][ T253] netlink_rcv_skb+0x130/0x360 [ 7923.389813][ T253] netlink_unicast+0x449/0x710 [ 7923.389813][ T253] netlink_sendmsg+0x723/0xbe0 [ 7923.389813][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7923.389813][ T253] ___sys_sendmsg+0xee/0x170 [ 7923.389813][ T253] __sys_sendmsg+0xcd/0x170 [ 7923.389813][ T253] do_syscall_64+0xc6/0x1e0 [ 7923.389813][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7923.389813][ T253] [ 7923.391535][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7923.391535][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7923.391535][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7923.391535][ T253] ipv6_find_idev+0x102/0x170 [ 7923.391535][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7923.391535][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7923.391535][ T253] netlink_rcv_skb+0x130/0x360 [ 7923.391535][ T253] netlink_unicast+0x449/0x710 [ 7923.391535][ T253] netlink_sendmsg+0x723/0xbe0 [ 7923.391535][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7923.391535][ T253] ___sys_sendmsg+0xee/0x170 [ 7923.391535][ T253] __sys_sendmsg+0xcd/0x170 [ 7923.391535][ T253] do_syscall_64+0xc6/0x1e0 [ 7923.391535][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7923.391535][ T253] [ 7933.506257][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7933.506701][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7933.506701][ T253] dst_init+0x84/0x4a0 [ 7933.506701][ T253] dst_alloc+0x97/0x150 [ 7933.506701][ T253] ip6_dst_alloc+0x23/0x90 [ 7933.506701][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7933.506701][ T253] ip6_pol_route+0x56f/0x840 [ 7933.506701][ T253] fib6_rule_lookup+0x334/0x630 [ 7933.506701][ T253] ip6_route_output_flags+0x259/0x480 [ 7933.506701][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7933.506701][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7933.506701][ T253] netlink_rcv_skb+0x130/0x360 [ 7933.506701][ T253] netlink_unicast+0x449/0x710 [ 7933.506701][ T253] netlink_sendmsg+0x723/0xbe0 [ 7933.506701][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7933.506701][ T253] ___sys_sendmsg+0xee/0x170 [ 7933.506701][ T253] __sys_sendmsg+0xcd/0x170 [ 7933.506701][ T253] do_syscall_64+0xc6/0x1e0 [ 7933.506701][ T253] [ 7933.508898][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7933.508898][ T253] netdev_get_by_index+0x5e/0x80 [ 7933.508898][ T253] fib6_nh_init+0x3d8/0x1580 [ 7933.508898][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7933.508898][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7933.508898][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7933.508898][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7933.508898][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7933.508898][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7933.508898][ T253] addrconf_dad_begin+0x310/0x670 [ 7933.508898][ T253] addrconf_dad_work+0x10b/0xab0 [ 7933.508898][ T253] process_one_work+0x84d/0x18a0 [ 7933.508898][ T253] worker_thread+0x587/0xd30 [ 7933.508898][ T253] kthread+0x28a/0x350 [ 7933.508898][ T253] ret_from_fork+0x31/0x70 [ 7933.508898][ T253] ret_from_fork_asm+0x1a/0x30 [ 7933.508898][ T253] [ 7933.511045][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7933.511045][ T253] netdev_get_by_index+0x5e/0x80 [ 7933.511045][ T253] fib6_nh_init+0x3d8/0x1580 [ 7933.511045][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7933.511045][ T253] ip6_route_add+0x1c/0x140 [ 7933.511045][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7933.511045][ T253] inet6_addr_add+0x4f8/0xa40 [ 7933.511045][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7933.511045][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7933.511045][ T253] netlink_rcv_skb+0x130/0x360 [ 7933.511045][ T253] netlink_unicast+0x449/0x710 [ 7933.511045][ T253] netlink_sendmsg+0x723/0xbe0 [ 7933.511045][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7933.511045][ T253] ___sys_sendmsg+0xee/0x170 [ 7933.511045][ T253] __sys_sendmsg+0xcd/0x170 [ 7933.511045][ T253] do_syscall_64+0xc6/0x1e0 [ 7933.511045][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7933.511045][ T253] [ 7933.513323][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7933.513323][ T253] netdev_get_by_index+0x5e/0x80 [ 7933.513323][ T253] fib6_nh_init+0x3d8/0x1580 [ 7933.513323][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7933.513323][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7933.513323][ T253] ipv6_add_addr+0x411/0x2000 [ 7933.513323][ T253] inet6_addr_add+0x30e/0xa40 [ 7933.513323][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7933.513323][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7933.513323][ T253] netlink_rcv_skb+0x130/0x360 [ 7933.513323][ T253] netlink_unicast+0x449/0x710 [ 7933.513323][ T253] netlink_sendmsg+0x723/0xbe0 [ 7933.513323][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7933.513323][ T253] ___sys_sendmsg+0xee/0x170 [ 7933.513323][ T253] __sys_sendmsg+0xcd/0x170 [ 7933.513323][ T253] do_syscall_64+0xc6/0x1e0 [ 7933.513323][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7933.513323][ T253] [ 7933.515568][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7933.515568][ T253] netdev_get_by_index+0x5e/0x80 [ 7933.515568][ T253] fib6_nh_init+0x3d8/0x1580 [ 7933.515568][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7933.515568][ T253] ip6_route_add+0x1c/0x140 [ 7933.515568][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7933.515568][ T253] addrconf_add_dev+0xe2/0x170 [ 7933.515568][ T253] inet6_addr_add+0x12f/0xa40 [ 7933.515568][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7933.515568][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7933.515568][ T253] netlink_rcv_skb+0x130/0x360 [ 7933.515568][ T253] netlink_unicast+0x449/0x710 [ 7933.515568][ T253] netlink_sendmsg+0x723/0xbe0 [ 7933.515568][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7933.515568][ T253] ___sys_sendmsg+0xee/0x170 [ 7933.515568][ T253] __sys_sendmsg+0xcd/0x170 [ 7933.515568][ T253] do_syscall_64+0xc6/0x1e0 [ 7933.515568][ T253] [ 7933.517776][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7933.517776][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7933.517776][ T253] ipv6_find_idev+0x102/0x170 [ 7933.517776][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7933.517776][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7933.517776][ T253] netlink_rcv_skb+0x130/0x360 [ 7933.517776][ T253] netlink_unicast+0x449/0x710 [ 7933.517776][ T253] netlink_sendmsg+0x723/0xbe0 [ 7933.517776][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7933.517776][ T253] ___sys_sendmsg+0xee/0x170 [ 7933.517776][ T253] __sys_sendmsg+0xcd/0x170 [ 7933.517776][ T253] do_syscall_64+0xc6/0x1e0 [ 7933.517776][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7933.517776][ T253] [ 7933.519499][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7933.519499][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7933.519499][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7933.519499][ T253] ipv6_find_idev+0x102/0x170 [ 7933.519499][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7933.519499][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7933.519499][ T253] netlink_rcv_skb+0x130/0x360 [ 7933.519499][ T253] netlink_unicast+0x449/0x710 [ 7933.519499][ T253] netlink_sendmsg+0x723/0xbe0 [ 7933.519499][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7933.519499][ T253] ___sys_sendmsg+0xee/0x170 [ 7933.519499][ T253] __sys_sendmsg+0xcd/0x170 [ 7933.519499][ T253] do_syscall_64+0xc6/0x1e0 [ 7933.519499][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7933.519499][ T253] [ 7943.770319][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7943.770800][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7943.770800][ T253] dst_init+0x84/0x4a0 [ 7943.770800][ T253] dst_alloc+0x97/0x150 [ 7943.770800][ T253] ip6_dst_alloc+0x23/0x90 [ 7943.770800][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7943.770800][ T253] ip6_pol_route+0x56f/0x840 [ 7943.770800][ T253] fib6_rule_lookup+0x334/0x630 [ 7943.770800][ T253] ip6_route_output_flags+0x259/0x480 [ 7943.770800][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7943.770800][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7943.770800][ T253] netlink_rcv_skb+0x130/0x360 [ 7943.770800][ T253] netlink_unicast+0x449/0x710 [ 7943.770800][ T253] netlink_sendmsg+0x723/0xbe0 [ 7943.770800][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7943.770800][ T253] ___sys_sendmsg+0xee/0x170 [ 7943.770800][ T253] __sys_sendmsg+0xcd/0x170 [ 7943.770800][ T253] do_syscall_64+0xc6/0x1e0 [ 7943.770800][ T253] [ 7943.773025][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7943.773025][ T253] netdev_get_by_index+0x5e/0x80 [ 7943.773025][ T253] fib6_nh_init+0x3d8/0x1580 [ 7943.773025][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7943.773025][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7943.773025][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7943.773025][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7943.773025][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7943.773025][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7943.773025][ T253] addrconf_dad_begin+0x310/0x670 [ 7943.773025][ T253] addrconf_dad_work+0x10b/0xab0 [ 7943.773025][ T253] process_one_work+0x84d/0x18a0 [ 7943.773025][ T253] worker_thread+0x587/0xd30 [ 7943.773025][ T253] kthread+0x28a/0x350 [ 7943.773025][ T253] ret_from_fork+0x31/0x70 [ 7943.773025][ T253] ret_from_fork_asm+0x1a/0x30 [ 7943.773025][ T253] [ 7943.775165][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7943.775165][ T253] netdev_get_by_index+0x5e/0x80 [ 7943.775165][ T253] fib6_nh_init+0x3d8/0x1580 [ 7943.775165][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7943.775165][ T253] ip6_route_add+0x1c/0x140 [ 7943.775165][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7943.775165][ T253] inet6_addr_add+0x4f8/0xa40 [ 7943.775165][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7943.775165][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7943.775165][ T253] netlink_rcv_skb+0x130/0x360 [ 7943.775165][ T253] netlink_unicast+0x449/0x710 [ 7943.775165][ T253] netlink_sendmsg+0x723/0xbe0 [ 7943.775165][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7943.775165][ T253] ___sys_sendmsg+0xee/0x170 [ 7943.775165][ T253] __sys_sendmsg+0xcd/0x170 [ 7943.775165][ T253] do_syscall_64+0xc6/0x1e0 [ 7943.775165][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7943.775165][ T253] [ 7943.777417][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7943.777417][ T253] netdev_get_by_index+0x5e/0x80 [ 7943.777417][ T253] fib6_nh_init+0x3d8/0x1580 [ 7943.777417][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7943.777417][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7943.777417][ T253] ipv6_add_addr+0x411/0x2000 [ 7943.777417][ T253] inet6_addr_add+0x30e/0xa40 [ 7943.777417][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7943.777417][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7943.777417][ T253] netlink_rcv_skb+0x130/0x360 [ 7943.777417][ T253] netlink_unicast+0x449/0x710 [ 7943.777417][ T253] netlink_sendmsg+0x723/0xbe0 [ 7943.777417][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7943.777417][ T253] ___sys_sendmsg+0xee/0x170 [ 7943.777417][ T253] __sys_sendmsg+0xcd/0x170 [ 7943.777417][ T253] do_syscall_64+0xc6/0x1e0 [ 7943.777417][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7943.777417][ T253] [ 7943.779658][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7943.779658][ T253] netdev_get_by_index+0x5e/0x80 [ 7943.779658][ T253] fib6_nh_init+0x3d8/0x1580 [ 7943.779658][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7943.779658][ T253] ip6_route_add+0x1c/0x140 [ 7943.779658][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7943.779658][ T253] addrconf_add_dev+0xe2/0x170 [ 7943.779658][ T253] inet6_addr_add+0x12f/0xa40 [ 7943.779658][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7943.779658][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7943.779658][ T253] netlink_rcv_skb+0x130/0x360 [ 7943.779658][ T253] netlink_unicast+0x449/0x710 [ 7943.779658][ T253] netlink_sendmsg+0x723/0xbe0 [ 7943.779658][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7943.779658][ T253] ___sys_sendmsg+0xee/0x170 [ 7943.779658][ T253] __sys_sendmsg+0xcd/0x170 [ 7943.779658][ T253] do_syscall_64+0xc6/0x1e0 [ 7943.779658][ T253] [ 7943.781870][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7943.781870][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7943.781870][ T253] ipv6_find_idev+0x102/0x170 [ 7943.781870][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7943.781870][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7943.781870][ T253] netlink_rcv_skb+0x130/0x360 [ 7943.781870][ T253] netlink_unicast+0x449/0x710 [ 7943.781870][ T253] netlink_sendmsg+0x723/0xbe0 [ 7943.781870][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7943.781870][ T253] ___sys_sendmsg+0xee/0x170 [ 7943.781870][ T253] __sys_sendmsg+0xcd/0x170 [ 7943.781870][ T253] do_syscall_64+0xc6/0x1e0 [ 7943.781870][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7943.781870][ T253] [ 7943.783601][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7943.783601][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7943.783601][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7943.783601][ T253] ipv6_find_idev+0x102/0x170 [ 7943.783601][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7943.783601][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7943.783601][ T253] netlink_rcv_skb+0x130/0x360 [ 7943.783601][ T253] netlink_unicast+0x449/0x710 [ 7943.783601][ T253] netlink_sendmsg+0x723/0xbe0 [ 7943.783601][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7943.783601][ T253] ___sys_sendmsg+0xee/0x170 [ 7943.783601][ T253] __sys_sendmsg+0xcd/0x170 [ 7943.783601][ T253] do_syscall_64+0xc6/0x1e0 [ 7943.783601][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7943.783601][ T253] [ 7954.018257][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7954.018724][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7954.018724][ T253] dst_init+0x84/0x4a0 [ 7954.018724][ T253] dst_alloc+0x97/0x150 [ 7954.018724][ T253] ip6_dst_alloc+0x23/0x90 [ 7954.018724][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7954.018724][ T253] ip6_pol_route+0x56f/0x840 [ 7954.018724][ T253] fib6_rule_lookup+0x334/0x630 [ 7954.018724][ T253] ip6_route_output_flags+0x259/0x480 [ 7954.018724][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7954.018724][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7954.018724][ T253] netlink_rcv_skb+0x130/0x360 [ 7954.018724][ T253] netlink_unicast+0x449/0x710 [ 7954.018724][ T253] netlink_sendmsg+0x723/0xbe0 [ 7954.018724][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7954.018724][ T253] ___sys_sendmsg+0xee/0x170 [ 7954.018724][ T253] __sys_sendmsg+0xcd/0x170 [ 7954.018724][ T253] do_syscall_64+0xc6/0x1e0 [ 7954.018724][ T253] [ 7954.021147][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7954.021147][ T253] netdev_get_by_index+0x5e/0x80 [ 7954.021147][ T253] fib6_nh_init+0x3d8/0x1580 [ 7954.021147][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7954.021147][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7954.021147][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7954.021147][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7954.021147][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7954.021147][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7954.021147][ T253] addrconf_dad_begin+0x310/0x670 [ 7954.021147][ T253] addrconf_dad_work+0x10b/0xab0 [ 7954.021147][ T253] process_one_work+0x84d/0x18a0 [ 7954.021147][ T253] worker_thread+0x587/0xd30 [ 7954.021147][ T253] kthread+0x28a/0x350 [ 7954.021147][ T253] ret_from_fork+0x31/0x70 [ 7954.021147][ T253] ret_from_fork_asm+0x1a/0x30 [ 7954.021147][ T253] [ 7954.023511][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7954.023511][ T253] netdev_get_by_index+0x5e/0x80 [ 7954.023511][ T253] fib6_nh_init+0x3d8/0x1580 [ 7954.023511][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7954.023511][ T253] ip6_route_add+0x1c/0x140 [ 7954.023511][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7954.023511][ T253] inet6_addr_add+0x4f8/0xa40 [ 7954.023511][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7954.023511][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7954.023511][ T253] netlink_rcv_skb+0x130/0x360 [ 7954.023511][ T253] netlink_unicast+0x449/0x710 [ 7954.023511][ T253] netlink_sendmsg+0x723/0xbe0 [ 7954.023511][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7954.023511][ T253] ___sys_sendmsg+0xee/0x170 [ 7954.023511][ T253] __sys_sendmsg+0xcd/0x170 [ 7954.023511][ T253] do_syscall_64+0xc6/0x1e0 [ 7954.023511][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7954.023511][ T253] [ 7954.025974][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7954.025974][ T253] netdev_get_by_index+0x5e/0x80 [ 7954.025974][ T253] fib6_nh_init+0x3d8/0x1580 [ 7954.025974][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7954.025974][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7954.025974][ T253] ipv6_add_addr+0x411/0x2000 [ 7954.025974][ T253] inet6_addr_add+0x30e/0xa40 [ 7954.025974][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7954.025974][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7954.025974][ T253] netlink_rcv_skb+0x130/0x360 [ 7954.025974][ T253] netlink_unicast+0x449/0x710 [ 7954.025974][ T253] netlink_sendmsg+0x723/0xbe0 [ 7954.025974][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7954.025974][ T253] ___sys_sendmsg+0xee/0x170 [ 7954.025974][ T253] __sys_sendmsg+0xcd/0x170 [ 7954.025974][ T253] do_syscall_64+0xc6/0x1e0 [ 7954.025974][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7954.025974][ T253] [ 7954.028422][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7954.028422][ T253] netdev_get_by_index+0x5e/0x80 [ 7954.028422][ T253] fib6_nh_init+0x3d8/0x1580 [ 7954.028422][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7954.028422][ T253] ip6_route_add+0x1c/0x140 [ 7954.028422][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7954.028422][ T253] addrconf_add_dev+0xe2/0x170 [ 7954.028422][ T253] inet6_addr_add+0x12f/0xa40 [ 7954.028422][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7954.028422][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7954.028422][ T253] netlink_rcv_skb+0x130/0x360 [ 7954.028422][ T253] netlink_unicast+0x449/0x710 [ 7954.028422][ T253] netlink_sendmsg+0x723/0xbe0 [ 7954.028422][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7954.028422][ T253] ___sys_sendmsg+0xee/0x170 [ 7954.028422][ T253] __sys_sendmsg+0xcd/0x170 [ 7954.028422][ T253] do_syscall_64+0xc6/0x1e0 [ 7954.028422][ T253] [ 7954.030824][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7954.030824][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7954.030824][ T253] ipv6_find_idev+0x102/0x170 [ 7954.030824][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7954.030824][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7954.030824][ T253] netlink_rcv_skb+0x130/0x360 [ 7954.030824][ T253] netlink_unicast+0x449/0x710 [ 7954.030824][ T253] netlink_sendmsg+0x723/0xbe0 [ 7954.030824][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7954.030824][ T253] ___sys_sendmsg+0xee/0x170 [ 7954.030824][ T253] __sys_sendmsg+0xcd/0x170 [ 7954.030824][ T253] do_syscall_64+0xc6/0x1e0 [ 7954.030824][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7954.030824][ T253] [ 7954.032720][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7954.032720][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7954.032720][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7954.032720][ T253] ipv6_find_idev+0x102/0x170 [ 7954.032720][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7954.032720][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7954.032720][ T253] netlink_rcv_skb+0x130/0x360 [ 7954.032720][ T253] netlink_unicast+0x449/0x710 [ 7954.032720][ T253] netlink_sendmsg+0x723/0xbe0 [ 7954.032720][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7954.032720][ T253] ___sys_sendmsg+0xee/0x170 [ 7954.032720][ T253] __sys_sendmsg+0xcd/0x170 [ 7954.032720][ T253] do_syscall_64+0xc6/0x1e0 [ 7954.032720][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7954.032720][ T253] [ 7964.282347][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7964.282858][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7964.282858][ T253] dst_init+0x84/0x4a0 [ 7964.282858][ T253] dst_alloc+0x97/0x150 [ 7964.282858][ T253] ip6_dst_alloc+0x23/0x90 [ 7964.282858][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7964.282858][ T253] ip6_pol_route+0x56f/0x840 [ 7964.282858][ T253] fib6_rule_lookup+0x334/0x630 [ 7964.282858][ T253] ip6_route_output_flags+0x259/0x480 [ 7964.282858][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7964.282858][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7964.282858][ T253] netlink_rcv_skb+0x130/0x360 [ 7964.282858][ T253] netlink_unicast+0x449/0x710 [ 7964.282858][ T253] netlink_sendmsg+0x723/0xbe0 [ 7964.282858][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7964.282858][ T253] ___sys_sendmsg+0xee/0x170 [ 7964.282858][ T253] __sys_sendmsg+0xcd/0x170 [ 7964.282858][ T253] do_syscall_64+0xc6/0x1e0 [ 7964.282858][ T253] [ 7964.285514][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7964.285514][ T253] netdev_get_by_index+0x5e/0x80 [ 7964.285514][ T253] fib6_nh_init+0x3d8/0x1580 [ 7964.285514][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7964.285514][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7964.285514][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7964.285514][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7964.285514][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7964.285514][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7964.285514][ T253] addrconf_dad_begin+0x310/0x670 [ 7964.285514][ T253] addrconf_dad_work+0x10b/0xab0 [ 7964.285514][ T253] process_one_work+0x84d/0x18a0 [ 7964.285514][ T253] worker_thread+0x587/0xd30 [ 7964.285514][ T253] kthread+0x28a/0x350 [ 7964.285514][ T253] ret_from_fork+0x31/0x70 [ 7964.285514][ T253] ret_from_fork_asm+0x1a/0x30 [ 7964.285514][ T253] [ 7964.288109][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7964.288109][ T253] netdev_get_by_index+0x5e/0x80 [ 7964.288109][ T253] fib6_nh_init+0x3d8/0x1580 [ 7964.288109][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7964.288109][ T253] ip6_route_add+0x1c/0x140 [ 7964.288109][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7964.288109][ T253] inet6_addr_add+0x4f8/0xa40 [ 7964.288109][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7964.288109][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7964.288109][ T253] netlink_rcv_skb+0x130/0x360 [ 7964.288109][ T253] netlink_unicast+0x449/0x710 [ 7964.288109][ T253] netlink_sendmsg+0x723/0xbe0 [ 7964.288109][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7964.288109][ T253] ___sys_sendmsg+0xee/0x170 [ 7964.288109][ T253] __sys_sendmsg+0xcd/0x170 [ 7964.288109][ T253] do_syscall_64+0xc6/0x1e0 [ 7964.288109][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7964.288109][ T253] [ 7964.290818][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7964.290818][ T253] netdev_get_by_index+0x5e/0x80 [ 7964.290818][ T253] fib6_nh_init+0x3d8/0x1580 [ 7964.290818][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7964.290818][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7964.290818][ T253] ipv6_add_addr+0x411/0x2000 [ 7964.290818][ T253] inet6_addr_add+0x30e/0xa40 [ 7964.290818][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7964.290818][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7964.290818][ T253] netlink_rcv_skb+0x130/0x360 [ 7964.290818][ T253] netlink_unicast+0x449/0x710 [ 7964.290818][ T253] netlink_sendmsg+0x723/0xbe0 [ 7964.290818][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7964.290818][ T253] ___sys_sendmsg+0xee/0x170 [ 7964.290818][ T253] __sys_sendmsg+0xcd/0x170 [ 7964.290818][ T253] do_syscall_64+0xc6/0x1e0 [ 7964.290818][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7964.290818][ T253] [ 7964.293533][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7964.293533][ T253] netdev_get_by_index+0x5e/0x80 [ 7964.293533][ T253] fib6_nh_init+0x3d8/0x1580 [ 7964.293533][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7964.293533][ T253] ip6_route_add+0x1c/0x140 [ 7964.293533][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7964.293533][ T253] addrconf_add_dev+0xe2/0x170 [ 7964.293533][ T253] inet6_addr_add+0x12f/0xa40 [ 7964.293533][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7964.293533][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7964.293533][ T253] netlink_rcv_skb+0x130/0x360 [ 7964.293533][ T253] netlink_unicast+0x449/0x710 [ 7964.293533][ T253] netlink_sendmsg+0x723/0xbe0 [ 7964.293533][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7964.293533][ T253] ___sys_sendmsg+0xee/0x170 [ 7964.293533][ T253] __sys_sendmsg+0xcd/0x170 [ 7964.293533][ T253] do_syscall_64+0xc6/0x1e0 [ 7964.293533][ T253] [ 7964.296187][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7964.296187][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7964.296187][ T253] ipv6_find_idev+0x102/0x170 [ 7964.296187][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7964.296187][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7964.296187][ T253] netlink_rcv_skb+0x130/0x360 [ 7964.296187][ T253] netlink_unicast+0x449/0x710 [ 7964.296187][ T253] netlink_sendmsg+0x723/0xbe0 [ 7964.296187][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7964.296187][ T253] ___sys_sendmsg+0xee/0x170 [ 7964.296187][ T253] __sys_sendmsg+0xcd/0x170 [ 7964.296187][ T253] do_syscall_64+0xc6/0x1e0 [ 7964.296187][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7964.296187][ T253] [ 7964.298266][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7964.298266][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7964.298266][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7964.298266][ T253] ipv6_find_idev+0x102/0x170 [ 7964.298266][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7964.298266][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7964.298266][ T253] netlink_rcv_skb+0x130/0x360 [ 7964.298266][ T253] netlink_unicast+0x449/0x710 [ 7964.298266][ T253] netlink_sendmsg+0x723/0xbe0 [ 7964.298266][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7964.298266][ T253] ___sys_sendmsg+0xee/0x170 [ 7964.298266][ T253] __sys_sendmsg+0xcd/0x170 [ 7964.298266][ T253] do_syscall_64+0xc6/0x1e0 [ 7964.298266][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7964.298266][ T253] [ 7974.546320][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7974.546821][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7974.546821][ T253] dst_init+0x84/0x4a0 [ 7974.546821][ T253] dst_alloc+0x97/0x150 [ 7974.546821][ T253] ip6_dst_alloc+0x23/0x90 [ 7974.546821][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7974.546821][ T253] ip6_pol_route+0x56f/0x840 [ 7974.546821][ T253] fib6_rule_lookup+0x334/0x630 [ 7974.546821][ T253] ip6_route_output_flags+0x259/0x480 [ 7974.546821][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7974.546821][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7974.546821][ T253] netlink_rcv_skb+0x130/0x360 [ 7974.546821][ T253] netlink_unicast+0x449/0x710 [ 7974.546821][ T253] netlink_sendmsg+0x723/0xbe0 [ 7974.546821][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7974.546821][ T253] ___sys_sendmsg+0xee/0x170 [ 7974.546821][ T253] __sys_sendmsg+0xcd/0x170 [ 7974.546821][ T253] do_syscall_64+0xc6/0x1e0 [ 7974.546821][ T253] [ 7974.549476][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7974.549476][ T253] netdev_get_by_index+0x5e/0x80 [ 7974.549476][ T253] fib6_nh_init+0x3d8/0x1580 [ 7974.549476][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7974.549476][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7974.549476][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7974.549476][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7974.549476][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7974.549476][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7974.549476][ T253] addrconf_dad_begin+0x310/0x670 [ 7974.549476][ T253] addrconf_dad_work+0x10b/0xab0 [ 7974.549476][ T253] process_one_work+0x84d/0x18a0 [ 7974.549476][ T253] worker_thread+0x587/0xd30 [ 7974.549476][ T253] kthread+0x28a/0x350 [ 7974.549476][ T253] ret_from_fork+0x31/0x70 [ 7974.549476][ T253] ret_from_fork_asm+0x1a/0x30 [ 7974.549476][ T253] [ 7974.552064][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7974.552064][ T253] netdev_get_by_index+0x5e/0x80 [ 7974.552064][ T253] fib6_nh_init+0x3d8/0x1580 [ 7974.552064][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7974.552064][ T253] ip6_route_add+0x1c/0x140 [ 7974.552064][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7974.552064][ T253] inet6_addr_add+0x4f8/0xa40 [ 7974.552064][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7974.552064][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7974.552064][ T253] netlink_rcv_skb+0x130/0x360 [ 7974.552064][ T253] netlink_unicast+0x449/0x710 [ 7974.552064][ T253] netlink_sendmsg+0x723/0xbe0 [ 7974.552064][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7974.552064][ T253] ___sys_sendmsg+0xee/0x170 [ 7974.552064][ T253] __sys_sendmsg+0xcd/0x170 [ 7974.552064][ T253] do_syscall_64+0xc6/0x1e0 [ 7974.552064][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7974.552064][ T253] [ 7974.554781][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7974.554781][ T253] netdev_get_by_index+0x5e/0x80 [ 7974.554781][ T253] fib6_nh_init+0x3d8/0x1580 [ 7974.554781][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7974.554781][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7974.554781][ T253] ipv6_add_addr+0x411/0x2000 [ 7974.554781][ T253] inet6_addr_add+0x30e/0xa40 [ 7974.554781][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7974.554781][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7974.554781][ T253] netlink_rcv_skb+0x130/0x360 [ 7974.554781][ T253] netlink_unicast+0x449/0x710 [ 7974.554781][ T253] netlink_sendmsg+0x723/0xbe0 [ 7974.554781][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7974.554781][ T253] ___sys_sendmsg+0xee/0x170 [ 7974.554781][ T253] __sys_sendmsg+0xcd/0x170 [ 7974.554781][ T253] do_syscall_64+0xc6/0x1e0 [ 7974.554781][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7974.554781][ T253] [ 7974.557487][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7974.557487][ T253] netdev_get_by_index+0x5e/0x80 [ 7974.557487][ T253] fib6_nh_init+0x3d8/0x1580 [ 7974.557487][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7974.557487][ T253] ip6_route_add+0x1c/0x140 [ 7974.557487][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7974.557487][ T253] addrconf_add_dev+0xe2/0x170 [ 7974.557487][ T253] inet6_addr_add+0x12f/0xa40 [ 7974.557487][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7974.557487][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7974.557487][ T253] netlink_rcv_skb+0x130/0x360 [ 7974.557487][ T253] netlink_unicast+0x449/0x710 [ 7974.557487][ T253] netlink_sendmsg+0x723/0xbe0 [ 7974.557487][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7974.557487][ T253] ___sys_sendmsg+0xee/0x170 [ 7974.557487][ T253] __sys_sendmsg+0xcd/0x170 [ 7974.557487][ T253] do_syscall_64+0xc6/0x1e0 [ 7974.557487][ T253] [ 7974.560157][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7974.560157][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7974.560157][ T253] ipv6_find_idev+0x102/0x170 [ 7974.560157][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7974.560157][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7974.560157][ T253] netlink_rcv_skb+0x130/0x360 [ 7974.560157][ T253] netlink_unicast+0x449/0x710 [ 7974.560157][ T253] netlink_sendmsg+0x723/0xbe0 [ 7974.560157][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7974.560157][ T253] ___sys_sendmsg+0xee/0x170 [ 7974.560157][ T253] __sys_sendmsg+0xcd/0x170 [ 7974.560157][ T253] do_syscall_64+0xc6/0x1e0 [ 7974.560157][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7974.560157][ T253] [ 7974.562236][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7974.562236][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7974.562236][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7974.562236][ T253] ipv6_find_idev+0x102/0x170 [ 7974.562236][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7974.562236][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7974.562236][ T253] netlink_rcv_skb+0x130/0x360 [ 7974.562236][ T253] netlink_unicast+0x449/0x710 [ 7974.562236][ T253] netlink_sendmsg+0x723/0xbe0 [ 7974.562236][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7974.562236][ T253] ___sys_sendmsg+0xee/0x170 [ 7974.562236][ T253] __sys_sendmsg+0xcd/0x170 [ 7974.562236][ T253] do_syscall_64+0xc6/0x1e0 [ 7974.562236][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7974.562236][ T253] [ 7984.810323][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7984.810810][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7984.810810][ T253] dst_init+0x84/0x4a0 [ 7984.810810][ T253] dst_alloc+0x97/0x150 [ 7984.810810][ T253] ip6_dst_alloc+0x23/0x90 [ 7984.810810][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7984.810810][ T253] ip6_pol_route+0x56f/0x840 [ 7984.810810][ T253] fib6_rule_lookup+0x334/0x630 [ 7984.810810][ T253] ip6_route_output_flags+0x259/0x480 [ 7984.810810][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7984.810810][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7984.810810][ T253] netlink_rcv_skb+0x130/0x360 [ 7984.810810][ T253] netlink_unicast+0x449/0x710 [ 7984.810810][ T253] netlink_sendmsg+0x723/0xbe0 [ 7984.810810][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7984.810810][ T253] ___sys_sendmsg+0xee/0x170 [ 7984.810810][ T253] __sys_sendmsg+0xcd/0x170 [ 7984.810810][ T253] do_syscall_64+0xc6/0x1e0 [ 7984.810810][ T253] [ 7984.813476][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7984.813476][ T253] netdev_get_by_index+0x5e/0x80 [ 7984.813476][ T253] fib6_nh_init+0x3d8/0x1580 [ 7984.813476][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7984.813476][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7984.813476][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7984.813476][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7984.813476][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7984.813476][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7984.813476][ T253] addrconf_dad_begin+0x310/0x670 [ 7984.813476][ T253] addrconf_dad_work+0x10b/0xab0 [ 7984.813476][ T253] process_one_work+0x84d/0x18a0 [ 7984.813476][ T253] worker_thread+0x587/0xd30 [ 7984.813476][ T253] kthread+0x28a/0x350 [ 7984.813476][ T253] ret_from_fork+0x31/0x70 [ 7984.813476][ T253] ret_from_fork_asm+0x1a/0x30 [ 7984.813476][ T253] [ 7984.816068][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7984.816068][ T253] netdev_get_by_index+0x5e/0x80 [ 7984.816068][ T253] fib6_nh_init+0x3d8/0x1580 [ 7984.816068][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7984.816068][ T253] ip6_route_add+0x1c/0x140 [ 7984.816068][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7984.816068][ T253] inet6_addr_add+0x4f8/0xa40 [ 7984.816068][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7984.816068][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7984.816068][ T253] netlink_rcv_skb+0x130/0x360 [ 7984.816068][ T253] netlink_unicast+0x449/0x710 [ 7984.816068][ T253] netlink_sendmsg+0x723/0xbe0 [ 7984.816068][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7984.816068][ T253] ___sys_sendmsg+0xee/0x170 [ 7984.816068][ T253] __sys_sendmsg+0xcd/0x170 [ 7984.816068][ T253] do_syscall_64+0xc6/0x1e0 [ 7984.816068][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7984.816068][ T253] [ 7984.818778][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7984.818778][ T253] netdev_get_by_index+0x5e/0x80 [ 7984.818778][ T253] fib6_nh_init+0x3d8/0x1580 [ 7984.818778][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7984.818778][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7984.818778][ T253] ipv6_add_addr+0x411/0x2000 [ 7984.818778][ T253] inet6_addr_add+0x30e/0xa40 [ 7984.818778][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7984.818778][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7984.818778][ T253] netlink_rcv_skb+0x130/0x360 [ 7984.818778][ T253] netlink_unicast+0x449/0x710 [ 7984.818778][ T253] netlink_sendmsg+0x723/0xbe0 [ 7984.818778][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7984.818778][ T253] ___sys_sendmsg+0xee/0x170 [ 7984.818778][ T253] __sys_sendmsg+0xcd/0x170 [ 7984.818778][ T253] do_syscall_64+0xc6/0x1e0 [ 7984.818778][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7984.818778][ T253] [ 7984.822009][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7984.822009][ T253] netdev_get_by_index+0x5e/0x80 [ 7984.822009][ T253] fib6_nh_init+0x3d8/0x1580 [ 7984.822009][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7984.822009][ T253] ip6_route_add+0x1c/0x140 [ 7984.822009][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7984.822009][ T253] addrconf_add_dev+0xe2/0x170 [ 7984.822009][ T253] inet6_addr_add+0x12f/0xa40 [ 7984.822009][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7984.822009][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7984.822009][ T253] netlink_rcv_skb+0x130/0x360 [ 7984.822009][ T253] netlink_unicast+0x449/0x710 [ 7984.822009][ T253] netlink_sendmsg+0x723/0xbe0 [ 7984.822009][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7984.822009][ T253] ___sys_sendmsg+0xee/0x170 [ 7984.822009][ T253] __sys_sendmsg+0xcd/0x170 [ 7984.822009][ T253] do_syscall_64+0xc6/0x1e0 [ 7984.822009][ T253] [ 7984.824679][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7984.824679][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7984.824679][ T253] ipv6_find_idev+0x102/0x170 [ 7984.824679][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7984.824679][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7984.824679][ T253] netlink_rcv_skb+0x130/0x360 [ 7984.824679][ T253] netlink_unicast+0x449/0x710 [ 7984.824679][ T253] netlink_sendmsg+0x723/0xbe0 [ 7984.824679][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7984.824679][ T253] ___sys_sendmsg+0xee/0x170 [ 7984.824679][ T253] __sys_sendmsg+0xcd/0x170 [ 7984.824679][ T253] do_syscall_64+0xc6/0x1e0 [ 7984.824679][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7984.824679][ T253] [ 7984.826763][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7984.826763][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7984.826763][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7984.826763][ T253] ipv6_find_idev+0x102/0x170 [ 7984.826763][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7984.826763][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7984.826763][ T253] netlink_rcv_skb+0x130/0x360 [ 7984.826763][ T253] netlink_unicast+0x449/0x710 [ 7984.826763][ T253] netlink_sendmsg+0x723/0xbe0 [ 7984.826763][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7984.826763][ T253] ___sys_sendmsg+0xee/0x170 [ 7984.826763][ T253] __sys_sendmsg+0xcd/0x170 [ 7984.826763][ T253] do_syscall_64+0xc6/0x1e0 [ 7984.826763][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7984.826763][ T253] [ 7995.074329][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7995.074828][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7995.074828][ T253] dst_init+0x84/0x4a0 [ 7995.074828][ T253] dst_alloc+0x97/0x150 [ 7995.074828][ T253] ip6_dst_alloc+0x23/0x90 [ 7995.074828][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7995.074828][ T253] ip6_pol_route+0x56f/0x840 [ 7995.074828][ T253] fib6_rule_lookup+0x334/0x630 [ 7995.074828][ T253] ip6_route_output_flags+0x259/0x480 [ 7995.074828][ T253] inet6_rtm_getroute+0x980/0xf70 [ 7995.074828][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 7995.074828][ T253] netlink_rcv_skb+0x130/0x360 [ 7995.074828][ T253] netlink_unicast+0x449/0x710 [ 7995.074828][ T253] netlink_sendmsg+0x723/0xbe0 [ 7995.074828][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7995.074828][ T253] ___sys_sendmsg+0xee/0x170 [ 7995.074828][ T253] __sys_sendmsg+0xcd/0x170 [ 7995.074828][ T253] do_syscall_64+0xc6/0x1e0 [ 7995.074828][ T253] [ 7995.077032][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7995.077032][ T253] netdev_get_by_index+0x5e/0x80 [ 7995.077032][ T253] fib6_nh_init+0x3d8/0x1580 [ 7995.077032][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7995.077032][ T253] addrconf_f6i_alloc+0x265/0x560 [ 7995.077032][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7995.077032][ T253] addrconf_join_anycast+0x1c0/0x220 [ 7995.077032][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7995.077032][ T253] addrconf_dad_completed+0x12b/0xe20 [ 7995.077032][ T253] addrconf_dad_begin+0x310/0x670 [ 7995.077032][ T253] addrconf_dad_work+0x10b/0xab0 [ 7995.077032][ T253] process_one_work+0x84d/0x18a0 [ 7995.077032][ T253] worker_thread+0x587/0xd30 [ 7995.077032][ T253] kthread+0x28a/0x350 [ 7995.077032][ T253] ret_from_fork+0x31/0x70 [ 7995.077032][ T253] ret_from_fork_asm+0x1a/0x30 [ 7995.077032][ T253] [ 7995.079176][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7995.079176][ T253] netdev_get_by_index+0x5e/0x80 [ 7995.079176][ T253] fib6_nh_init+0x3d8/0x1580 [ 7995.079176][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7995.079176][ T253] ip6_route_add+0x1c/0x140 [ 7995.079176][ T253] addrconf_prefix_route+0x2a6/0x430 [ 7995.079176][ T253] inet6_addr_add+0x4f8/0xa40 [ 7995.079176][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7995.079176][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7995.079176][ T253] netlink_rcv_skb+0x130/0x360 [ 7995.079176][ T253] netlink_unicast+0x449/0x710 [ 7995.079176][ T253] netlink_sendmsg+0x723/0xbe0 [ 7995.079176][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7995.079176][ T253] ___sys_sendmsg+0xee/0x170 [ 7995.079176][ T253] __sys_sendmsg+0xcd/0x170 [ 7995.079176][ T253] do_syscall_64+0xc6/0x1e0 [ 7995.079176][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7995.079176][ T253] [ 7995.081421][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7995.081421][ T253] netdev_get_by_index+0x5e/0x80 [ 7995.081421][ T253] fib6_nh_init+0x3d8/0x1580 [ 7995.081421][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7995.081421][ T253] addrconf_f6i_alloc+0x315/0x560 [ 7995.081421][ T253] ipv6_add_addr+0x411/0x2000 [ 7995.081421][ T253] inet6_addr_add+0x30e/0xa40 [ 7995.081421][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7995.081421][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7995.081421][ T253] netlink_rcv_skb+0x130/0x360 [ 7995.081421][ T253] netlink_unicast+0x449/0x710 [ 7995.081421][ T253] netlink_sendmsg+0x723/0xbe0 [ 7995.081421][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7995.081421][ T253] ___sys_sendmsg+0xee/0x170 [ 7995.081421][ T253] __sys_sendmsg+0xcd/0x170 [ 7995.081421][ T253] do_syscall_64+0xc6/0x1e0 [ 7995.081421][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7995.081421][ T253] [ 7995.083676][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7995.083676][ T253] netdev_get_by_index+0x5e/0x80 [ 7995.083676][ T253] fib6_nh_init+0x3d8/0x1580 [ 7995.083676][ T253] ip6_route_info_create+0xf18/0x17d0 [ 7995.083676][ T253] ip6_route_add+0x1c/0x140 [ 7995.083676][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 7995.083676][ T253] addrconf_add_dev+0xe2/0x170 [ 7995.083676][ T253] inet6_addr_add+0x12f/0xa40 [ 7995.083676][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 7995.083676][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7995.083676][ T253] netlink_rcv_skb+0x130/0x360 [ 7995.083676][ T253] netlink_unicast+0x449/0x710 [ 7995.083676][ T253] netlink_sendmsg+0x723/0xbe0 [ 7995.083676][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7995.083676][ T253] ___sys_sendmsg+0xee/0x170 [ 7995.083676][ T253] __sys_sendmsg+0xcd/0x170 [ 7995.083676][ T253] do_syscall_64+0xc6/0x1e0 [ 7995.083676][ T253] [ 7995.085877][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7995.085877][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 7995.085877][ T253] ipv6_find_idev+0x102/0x170 [ 7995.085877][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7995.085877][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7995.085877][ T253] netlink_rcv_skb+0x130/0x360 [ 7995.085877][ T253] netlink_unicast+0x449/0x710 [ 7995.085877][ T253] netlink_sendmsg+0x723/0xbe0 [ 7995.085877][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7995.085877][ T253] ___sys_sendmsg+0xee/0x170 [ 7995.085877][ T253] __sys_sendmsg+0xcd/0x170 [ 7995.085877][ T253] do_syscall_64+0xc6/0x1e0 [ 7995.085877][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7995.085877][ T253] [ 7995.087601][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 7995.087601][ T253] neigh_parms_alloc+0x1e5/0x510 [ 7995.087601][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 7995.087601][ T253] ipv6_find_idev+0x102/0x170 [ 7995.087601][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 7995.087601][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7995.087601][ T253] netlink_rcv_skb+0x130/0x360 [ 7995.087601][ T253] netlink_unicast+0x449/0x710 [ 7995.087601][ T253] netlink_sendmsg+0x723/0xbe0 [ 7995.087601][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 7995.087601][ T253] ___sys_sendmsg+0xee/0x170 [ 7995.087601][ T253] __sys_sendmsg+0xcd/0x170 [ 7995.087601][ T253] do_syscall_64+0xc6/0x1e0 [ 7995.087601][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7995.087601][ T253] [ 8005.338297][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8005.338791][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8005.338791][ T253] dst_init+0x84/0x4a0 [ 8005.338791][ T253] dst_alloc+0x97/0x150 [ 8005.338791][ T253] ip6_dst_alloc+0x23/0x90 [ 8005.338791][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8005.338791][ T253] ip6_pol_route+0x56f/0x840 [ 8005.338791][ T253] fib6_rule_lookup+0x334/0x630 [ 8005.338791][ T253] ip6_route_output_flags+0x259/0x480 [ 8005.338791][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8005.338791][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8005.338791][ T253] netlink_rcv_skb+0x130/0x360 [ 8005.338791][ T253] netlink_unicast+0x449/0x710 [ 8005.338791][ T253] netlink_sendmsg+0x723/0xbe0 [ 8005.338791][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8005.338791][ T253] ___sys_sendmsg+0xee/0x170 [ 8005.338791][ T253] __sys_sendmsg+0xcd/0x170 [ 8005.338791][ T253] do_syscall_64+0xc6/0x1e0 [ 8005.338791][ T253] [ 8005.340983][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8005.340983][ T253] netdev_get_by_index+0x5e/0x80 [ 8005.340983][ T253] fib6_nh_init+0x3d8/0x1580 [ 8005.340983][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8005.340983][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8005.340983][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8005.340983][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8005.340983][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8005.340983][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8005.340983][ T253] addrconf_dad_begin+0x310/0x670 [ 8005.340983][ T253] addrconf_dad_work+0x10b/0xab0 [ 8005.340983][ T253] process_one_work+0x84d/0x18a0 [ 8005.340983][ T253] worker_thread+0x587/0xd30 [ 8005.340983][ T253] kthread+0x28a/0x350 [ 8005.340983][ T253] ret_from_fork+0x31/0x70 [ 8005.340983][ T253] ret_from_fork_asm+0x1a/0x30 [ 8005.340983][ T253] [ 8005.343146][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8005.343146][ T253] netdev_get_by_index+0x5e/0x80 [ 8005.343146][ T253] fib6_nh_init+0x3d8/0x1580 [ 8005.343146][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8005.343146][ T253] ip6_route_add+0x1c/0x140 [ 8005.343146][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8005.343146][ T253] inet6_addr_add+0x4f8/0xa40 [ 8005.343146][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8005.343146][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8005.343146][ T253] netlink_rcv_skb+0x130/0x360 [ 8005.343146][ T253] netlink_unicast+0x449/0x710 [ 8005.343146][ T253] netlink_sendmsg+0x723/0xbe0 [ 8005.343146][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8005.343146][ T253] ___sys_sendmsg+0xee/0x170 [ 8005.343146][ T253] __sys_sendmsg+0xcd/0x170 [ 8005.343146][ T253] do_syscall_64+0xc6/0x1e0 [ 8005.343146][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8005.343146][ T253] [ 8005.346572][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8005.346572][ T253] netdev_get_by_index+0x5e/0x80 [ 8005.346572][ T253] fib6_nh_init+0x3d8/0x1580 [ 8005.346572][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8005.346572][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8005.346572][ T253] ipv6_add_addr+0x411/0x2000 [ 8005.346572][ T253] inet6_addr_add+0x30e/0xa40 [ 8005.346572][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8005.346572][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8005.346572][ T253] netlink_rcv_skb+0x130/0x360 [ 8005.346572][ T253] netlink_unicast+0x449/0x710 [ 8005.346572][ T253] netlink_sendmsg+0x723/0xbe0 [ 8005.346572][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8005.346572][ T253] ___sys_sendmsg+0xee/0x170 [ 8005.346572][ T253] __sys_sendmsg+0xcd/0x170 [ 8005.346572][ T253] do_syscall_64+0xc6/0x1e0 [ 8005.346572][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8005.346572][ T253] [ 8005.350247][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8005.350247][ T253] netdev_get_by_index+0x5e/0x80 [ 8005.350247][ T253] fib6_nh_init+0x3d8/0x1580 [ 8005.350247][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8005.350247][ T253] ip6_route_add+0x1c/0x140 [ 8005.350247][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8005.350247][ T253] addrconf_add_dev+0xe2/0x170 [ 8005.350247][ T253] inet6_addr_add+0x12f/0xa40 [ 8005.350247][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8005.350247][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8005.350247][ T253] netlink_rcv_skb+0x130/0x360 [ 8005.350247][ T253] netlink_unicast+0x449/0x710 [ 8005.350247][ T253] netlink_sendmsg+0x723/0xbe0 [ 8005.350247][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8005.350247][ T253] ___sys_sendmsg+0xee/0x170 [ 8005.350247][ T253] __sys_sendmsg+0xcd/0x170 [ 8005.350247][ T253] do_syscall_64+0xc6/0x1e0 [ 8005.350247][ T253] [ 8005.353805][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8005.353805][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8005.353805][ T253] ipv6_find_idev+0x102/0x170 [ 8005.353805][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8005.353805][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8005.353805][ T253] netlink_rcv_skb+0x130/0x360 [ 8005.353805][ T253] netlink_unicast+0x449/0x710 [ 8005.353805][ T253] netlink_sendmsg+0x723/0xbe0 [ 8005.353805][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8005.353805][ T253] ___sys_sendmsg+0xee/0x170 [ 8005.353805][ T253] __sys_sendmsg+0xcd/0x170 [ 8005.353805][ T253] do_syscall_64+0xc6/0x1e0 [ 8005.353805][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8005.353805][ T253] [ 8005.355625][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8005.355625][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8005.355625][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8005.355625][ T253] ipv6_find_idev+0x102/0x170 [ 8005.355625][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8005.355625][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8005.355625][ T253] netlink_rcv_skb+0x130/0x360 [ 8005.355625][ T253] netlink_unicast+0x449/0x710 [ 8005.355625][ T253] netlink_sendmsg+0x723/0xbe0 [ 8005.355625][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8005.355625][ T253] ___sys_sendmsg+0xee/0x170 [ 8005.355625][ T253] __sys_sendmsg+0xcd/0x170 [ 8005.355625][ T253] do_syscall_64+0xc6/0x1e0 [ 8005.355625][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8005.355625][ T253] [ 8015.610255][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8015.610731][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8015.610731][ T253] dst_init+0x84/0x4a0 [ 8015.610731][ T253] dst_alloc+0x97/0x150 [ 8015.610731][ T253] ip6_dst_alloc+0x23/0x90 [ 8015.610731][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8015.610731][ T253] ip6_pol_route+0x56f/0x840 [ 8015.610731][ T253] fib6_rule_lookup+0x334/0x630 [ 8015.610731][ T253] ip6_route_output_flags+0x259/0x480 [ 8015.610731][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8015.610731][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8015.610731][ T253] netlink_rcv_skb+0x130/0x360 [ 8015.610731][ T253] netlink_unicast+0x449/0x710 [ 8015.610731][ T253] netlink_sendmsg+0x723/0xbe0 [ 8015.610731][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8015.610731][ T253] ___sys_sendmsg+0xee/0x170 [ 8015.610731][ T253] __sys_sendmsg+0xcd/0x170 [ 8015.610731][ T253] do_syscall_64+0xc6/0x1e0 [ 8015.610731][ T253] [ 8015.613699][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8015.613699][ T253] netdev_get_by_index+0x5e/0x80 [ 8015.613699][ T253] fib6_nh_init+0x3d8/0x1580 [ 8015.613699][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8015.613699][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8015.613699][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8015.613699][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8015.613699][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8015.613699][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8015.613699][ T253] addrconf_dad_begin+0x310/0x670 [ 8015.613699][ T253] addrconf_dad_work+0x10b/0xab0 [ 8015.613699][ T253] process_one_work+0x84d/0x18a0 [ 8015.613699][ T253] worker_thread+0x587/0xd30 [ 8015.613699][ T253] kthread+0x28a/0x350 [ 8015.613699][ T253] ret_from_fork+0x31/0x70 [ 8015.613699][ T253] ret_from_fork_asm+0x1a/0x30 [ 8015.613699][ T253] [ 8015.615847][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8015.615847][ T253] netdev_get_by_index+0x5e/0x80 [ 8015.615847][ T253] fib6_nh_init+0x3d8/0x1580 [ 8015.615847][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8015.615847][ T253] ip6_route_add+0x1c/0x140 [ 8015.615847][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8015.615847][ T253] inet6_addr_add+0x4f8/0xa40 [ 8015.615847][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8015.615847][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8015.615847][ T253] netlink_rcv_skb+0x130/0x360 [ 8015.615847][ T253] netlink_unicast+0x449/0x710 [ 8015.615847][ T253] netlink_sendmsg+0x723/0xbe0 [ 8015.615847][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8015.615847][ T253] ___sys_sendmsg+0xee/0x170 [ 8015.615847][ T253] __sys_sendmsg+0xcd/0x170 [ 8015.615847][ T253] do_syscall_64+0xc6/0x1e0 [ 8015.615847][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8015.615847][ T253] [ 8015.618165][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8015.618165][ T253] netdev_get_by_index+0x5e/0x80 [ 8015.618165][ T253] fib6_nh_init+0x3d8/0x1580 [ 8015.618165][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8015.618165][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8015.618165][ T253] ipv6_add_addr+0x411/0x2000 [ 8015.618165][ T253] inet6_addr_add+0x30e/0xa40 [ 8015.618165][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8015.618165][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8015.618165][ T253] netlink_rcv_skb+0x130/0x360 [ 8015.618165][ T253] netlink_unicast+0x449/0x710 [ 8015.618165][ T253] netlink_sendmsg+0x723/0xbe0 [ 8015.618165][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8015.618165][ T253] ___sys_sendmsg+0xee/0x170 [ 8015.618165][ T253] __sys_sendmsg+0xcd/0x170 [ 8015.618165][ T253] do_syscall_64+0xc6/0x1e0 [ 8015.618165][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8015.618165][ T253] [ 8015.620403][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8015.620403][ T253] netdev_get_by_index+0x5e/0x80 [ 8015.620403][ T253] fib6_nh_init+0x3d8/0x1580 [ 8015.620403][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8015.620403][ T253] ip6_route_add+0x1c/0x140 [ 8015.620403][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8015.620403][ T253] addrconf_add_dev+0xe2/0x170 [ 8015.620403][ T253] inet6_addr_add+0x12f/0xa40 [ 8015.620403][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8015.620403][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8015.620403][ T253] netlink_rcv_skb+0x130/0x360 [ 8015.620403][ T253] netlink_unicast+0x449/0x710 [ 8015.620403][ T253] netlink_sendmsg+0x723/0xbe0 [ 8015.620403][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8015.620403][ T253] ___sys_sendmsg+0xee/0x170 [ 8015.620403][ T253] __sys_sendmsg+0xcd/0x170 [ 8015.620403][ T253] do_syscall_64+0xc6/0x1e0 [ 8015.620403][ T253] [ 8015.622626][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8015.622626][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8015.622626][ T253] ipv6_find_idev+0x102/0x170 [ 8015.622626][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8015.622626][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8015.622626][ T253] netlink_rcv_skb+0x130/0x360 [ 8015.622626][ T253] netlink_unicast+0x449/0x710 [ 8015.622626][ T253] netlink_sendmsg+0x723/0xbe0 [ 8015.622626][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8015.622626][ T253] ___sys_sendmsg+0xee/0x170 [ 8015.622626][ T253] __sys_sendmsg+0xcd/0x170 [ 8015.622626][ T253] do_syscall_64+0xc6/0x1e0 [ 8015.622626][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8015.622626][ T253] [ 8015.624350][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8015.624350][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8015.624350][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8015.624350][ T253] ipv6_find_idev+0x102/0x170 [ 8015.624350][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8015.624350][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8015.624350][ T253] netlink_rcv_skb+0x130/0x360 [ 8015.624350][ T253] netlink_unicast+0x449/0x710 [ 8015.624350][ T253] netlink_sendmsg+0x723/0xbe0 [ 8015.624350][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8015.624350][ T253] ___sys_sendmsg+0xee/0x170 [ 8015.624350][ T253] __sys_sendmsg+0xcd/0x170 [ 8015.624350][ T253] do_syscall_64+0xc6/0x1e0 [ 8015.624350][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8015.624350][ T253] [ 8025.866271][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8025.866719][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8025.866719][ T253] dst_init+0x84/0x4a0 [ 8025.866719][ T253] dst_alloc+0x97/0x150 [ 8025.866719][ T253] ip6_dst_alloc+0x23/0x90 [ 8025.866719][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8025.866719][ T253] ip6_pol_route+0x56f/0x840 [ 8025.866719][ T253] fib6_rule_lookup+0x334/0x630 [ 8025.866719][ T253] ip6_route_output_flags+0x259/0x480 [ 8025.866719][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8025.866719][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8025.866719][ T253] netlink_rcv_skb+0x130/0x360 [ 8025.866719][ T253] netlink_unicast+0x449/0x710 [ 8025.866719][ T253] netlink_sendmsg+0x723/0xbe0 [ 8025.866719][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8025.866719][ T253] ___sys_sendmsg+0xee/0x170 [ 8025.866719][ T253] __sys_sendmsg+0xcd/0x170 [ 8025.866719][ T253] do_syscall_64+0xc6/0x1e0 [ 8025.866719][ T253] [ 8025.869126][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8025.869126][ T253] netdev_get_by_index+0x5e/0x80 [ 8025.869126][ T253] fib6_nh_init+0x3d8/0x1580 [ 8025.869126][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8025.869126][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8025.869126][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8025.869126][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8025.869126][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8025.869126][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8025.869126][ T253] addrconf_dad_begin+0x310/0x670 [ 8025.869126][ T253] addrconf_dad_work+0x10b/0xab0 [ 8025.869126][ T253] process_one_work+0x84d/0x18a0 [ 8025.869126][ T253] worker_thread+0x587/0xd30 [ 8025.869126][ T253] kthread+0x28a/0x350 [ 8025.869126][ T253] ret_from_fork+0x31/0x70 [ 8025.869126][ T253] ret_from_fork_asm+0x1a/0x30 [ 8025.869126][ T253] [ 8025.871473][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8025.871473][ T253] netdev_get_by_index+0x5e/0x80 [ 8025.871473][ T253] fib6_nh_init+0x3d8/0x1580 [ 8025.871473][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8025.871473][ T253] ip6_route_add+0x1c/0x140 [ 8025.871473][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8025.871473][ T253] inet6_addr_add+0x4f8/0xa40 [ 8025.871473][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8025.871473][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8025.871473][ T253] netlink_rcv_skb+0x130/0x360 [ 8025.871473][ T253] netlink_unicast+0x449/0x710 [ 8025.871473][ T253] netlink_sendmsg+0x723/0xbe0 [ 8025.871473][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8025.871473][ T253] ___sys_sendmsg+0xee/0x170 [ 8025.871473][ T253] __sys_sendmsg+0xcd/0x170 [ 8025.871473][ T253] do_syscall_64+0xc6/0x1e0 [ 8025.871473][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8025.871473][ T253] [ 8025.873946][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8025.873946][ T253] netdev_get_by_index+0x5e/0x80 [ 8025.873946][ T253] fib6_nh_init+0x3d8/0x1580 [ 8025.873946][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8025.873946][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8025.873946][ T253] ipv6_add_addr+0x411/0x2000 [ 8025.873946][ T253] inet6_addr_add+0x30e/0xa40 [ 8025.873946][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8025.873946][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8025.873946][ T253] netlink_rcv_skb+0x130/0x360 [ 8025.873946][ T253] netlink_unicast+0x449/0x710 [ 8025.873946][ T253] netlink_sendmsg+0x723/0xbe0 [ 8025.873946][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8025.873946][ T253] ___sys_sendmsg+0xee/0x170 [ 8025.873946][ T253] __sys_sendmsg+0xcd/0x170 [ 8025.873946][ T253] do_syscall_64+0xc6/0x1e0 [ 8025.873946][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8025.873946][ T253] [ 8025.876394][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8025.876394][ T253] netdev_get_by_index+0x5e/0x80 [ 8025.876394][ T253] fib6_nh_init+0x3d8/0x1580 [ 8025.876394][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8025.876394][ T253] ip6_route_add+0x1c/0x140 [ 8025.876394][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8025.876394][ T253] addrconf_add_dev+0xe2/0x170 [ 8025.876394][ T253] inet6_addr_add+0x12f/0xa40 [ 8025.876394][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8025.876394][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8025.876394][ T253] netlink_rcv_skb+0x130/0x360 [ 8025.876394][ T253] netlink_unicast+0x449/0x710 [ 8025.876394][ T253] netlink_sendmsg+0x723/0xbe0 [ 8025.876394][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8025.876394][ T253] ___sys_sendmsg+0xee/0x170 [ 8025.876394][ T253] __sys_sendmsg+0xcd/0x170 [ 8025.876394][ T253] do_syscall_64+0xc6/0x1e0 [ 8025.876394][ T253] [ 8025.878794][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8025.878794][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8025.878794][ T253] ipv6_find_idev+0x102/0x170 [ 8025.878794][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8025.878794][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8025.878794][ T253] netlink_rcv_skb+0x130/0x360 [ 8025.878794][ T253] netlink_unicast+0x449/0x710 [ 8025.878794][ T253] netlink_sendmsg+0x723/0xbe0 [ 8025.878794][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8025.878794][ T253] ___sys_sendmsg+0xee/0x170 [ 8025.878794][ T253] __sys_sendmsg+0xcd/0x170 [ 8025.878794][ T253] do_syscall_64+0xc6/0x1e0 [ 8025.878794][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8025.878794][ T253] [ 8025.880674][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8025.880674][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8025.880674][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8025.880674][ T253] ipv6_find_idev+0x102/0x170 [ 8025.880674][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8025.880674][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8025.880674][ T253] netlink_rcv_skb+0x130/0x360 [ 8025.880674][ T253] netlink_unicast+0x449/0x710 [ 8025.880674][ T253] netlink_sendmsg+0x723/0xbe0 [ 8025.880674][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8025.880674][ T253] ___sys_sendmsg+0xee/0x170 [ 8025.880674][ T253] __sys_sendmsg+0xcd/0x170 [ 8025.880674][ T253] do_syscall_64+0xc6/0x1e0 [ 8025.880674][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8025.880674][ T253] [ 8036.122246][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8036.122688][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8036.122688][ T253] dst_init+0x84/0x4a0 [ 8036.122688][ T253] dst_alloc+0x97/0x150 [ 8036.122688][ T253] ip6_dst_alloc+0x23/0x90 [ 8036.122688][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8036.122688][ T253] ip6_pol_route+0x56f/0x840 [ 8036.122688][ T253] fib6_rule_lookup+0x334/0x630 [ 8036.122688][ T253] ip6_route_output_flags+0x259/0x480 [ 8036.122688][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8036.122688][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8036.122688][ T253] netlink_rcv_skb+0x130/0x360 [ 8036.122688][ T253] netlink_unicast+0x449/0x710 [ 8036.122688][ T253] netlink_sendmsg+0x723/0xbe0 [ 8036.122688][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8036.122688][ T253] ___sys_sendmsg+0xee/0x170 [ 8036.122688][ T253] __sys_sendmsg+0xcd/0x170 [ 8036.122688][ T253] do_syscall_64+0xc6/0x1e0 [ 8036.122688][ T253] [ 8036.124893][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8036.124893][ T253] netdev_get_by_index+0x5e/0x80 [ 8036.124893][ T253] fib6_nh_init+0x3d8/0x1580 [ 8036.124893][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8036.124893][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8036.124893][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8036.124893][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8036.124893][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8036.124893][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8036.124893][ T253] addrconf_dad_begin+0x310/0x670 [ 8036.124893][ T253] addrconf_dad_work+0x10b/0xab0 [ 8036.124893][ T253] process_one_work+0x84d/0x18a0 [ 8036.124893][ T253] worker_thread+0x587/0xd30 [ 8036.124893][ T253] kthread+0x28a/0x350 [ 8036.124893][ T253] ret_from_fork+0x31/0x70 [ 8036.124893][ T253] ret_from_fork_asm+0x1a/0x30 [ 8036.124893][ T253] [ 8036.127575][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8036.127575][ T253] netdev_get_by_index+0x5e/0x80 [ 8036.127575][ T253] fib6_nh_init+0x3d8/0x1580 [ 8036.127575][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8036.127575][ T253] ip6_route_add+0x1c/0x140 [ 8036.127575][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8036.127575][ T253] inet6_addr_add+0x4f8/0xa40 [ 8036.127575][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8036.127575][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8036.127575][ T253] netlink_rcv_skb+0x130/0x360 [ 8036.127575][ T253] netlink_unicast+0x449/0x710 [ 8036.127575][ T253] netlink_sendmsg+0x723/0xbe0 [ 8036.127575][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8036.127575][ T253] ___sys_sendmsg+0xee/0x170 [ 8036.127575][ T253] __sys_sendmsg+0xcd/0x170 [ 8036.127575][ T253] do_syscall_64+0xc6/0x1e0 [ 8036.127575][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8036.127575][ T253] [ 8036.129807][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8036.129807][ T253] netdev_get_by_index+0x5e/0x80 [ 8036.129807][ T253] fib6_nh_init+0x3d8/0x1580 [ 8036.129807][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8036.129807][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8036.129807][ T253] ipv6_add_addr+0x411/0x2000 [ 8036.129807][ T253] inet6_addr_add+0x30e/0xa40 [ 8036.129807][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8036.129807][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8036.129807][ T253] netlink_rcv_skb+0x130/0x360 [ 8036.129807][ T253] netlink_unicast+0x449/0x710 [ 8036.129807][ T253] netlink_sendmsg+0x723/0xbe0 [ 8036.129807][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8036.129807][ T253] ___sys_sendmsg+0xee/0x170 [ 8036.129807][ T253] __sys_sendmsg+0xcd/0x170 [ 8036.129807][ T253] do_syscall_64+0xc6/0x1e0 [ 8036.129807][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8036.129807][ T253] [ 8036.132049][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8036.132049][ T253] netdev_get_by_index+0x5e/0x80 [ 8036.132049][ T253] fib6_nh_init+0x3d8/0x1580 [ 8036.132049][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8036.132049][ T253] ip6_route_add+0x1c/0x140 [ 8036.132049][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8036.132049][ T253] addrconf_add_dev+0xe2/0x170 [ 8036.132049][ T253] inet6_addr_add+0x12f/0xa40 [ 8036.132049][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8036.132049][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8036.132049][ T253] netlink_rcv_skb+0x130/0x360 [ 8036.132049][ T253] netlink_unicast+0x449/0x710 [ 8036.132049][ T253] netlink_sendmsg+0x723/0xbe0 [ 8036.132049][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8036.132049][ T253] ___sys_sendmsg+0xee/0x170 [ 8036.132049][ T253] __sys_sendmsg+0xcd/0x170 [ 8036.132049][ T253] do_syscall_64+0xc6/0x1e0 [ 8036.132049][ T253] [ 8036.134267][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8036.134267][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8036.134267][ T253] ipv6_find_idev+0x102/0x170 [ 8036.134267][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8036.134267][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8036.134267][ T253] netlink_rcv_skb+0x130/0x360 [ 8036.134267][ T253] netlink_unicast+0x449/0x710 [ 8036.134267][ T253] netlink_sendmsg+0x723/0xbe0 [ 8036.134267][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8036.134267][ T253] ___sys_sendmsg+0xee/0x170 [ 8036.134267][ T253] __sys_sendmsg+0xcd/0x170 [ 8036.134267][ T253] do_syscall_64+0xc6/0x1e0 [ 8036.134267][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8036.134267][ T253] [ 8036.135994][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8036.135994][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8036.135994][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8036.135994][ T253] ipv6_find_idev+0x102/0x170 [ 8036.135994][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8036.135994][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8036.135994][ T253] netlink_rcv_skb+0x130/0x360 [ 8036.135994][ T253] netlink_unicast+0x449/0x710 [ 8036.135994][ T253] netlink_sendmsg+0x723/0xbe0 [ 8036.135994][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8036.135994][ T253] ___sys_sendmsg+0xee/0x170 [ 8036.135994][ T253] __sys_sendmsg+0xcd/0x170 [ 8036.135994][ T253] do_syscall_64+0xc6/0x1e0 [ 8036.135994][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8036.135994][ T253] [ 8046.378351][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8046.378860][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8046.378860][ T253] dst_init+0x84/0x4a0 [ 8046.378860][ T253] dst_alloc+0x97/0x150 [ 8046.378860][ T253] ip6_dst_alloc+0x23/0x90 [ 8046.378860][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8046.378860][ T253] ip6_pol_route+0x56f/0x840 [ 8046.378860][ T253] fib6_rule_lookup+0x334/0x630 [ 8046.378860][ T253] ip6_route_output_flags+0x259/0x480 [ 8046.378860][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8046.378860][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8046.378860][ T253] netlink_rcv_skb+0x130/0x360 [ 8046.378860][ T253] netlink_unicast+0x449/0x710 [ 8046.378860][ T253] netlink_sendmsg+0x723/0xbe0 [ 8046.378860][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8046.378860][ T253] ___sys_sendmsg+0xee/0x170 [ 8046.378860][ T253] __sys_sendmsg+0xcd/0x170 [ 8046.378860][ T253] do_syscall_64+0xc6/0x1e0 [ 8046.378860][ T253] [ 8046.381076][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8046.381076][ T253] netdev_get_by_index+0x5e/0x80 [ 8046.381076][ T253] fib6_nh_init+0x3d8/0x1580 [ 8046.381076][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8046.381076][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8046.381076][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8046.381076][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8046.381076][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8046.381076][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8046.381076][ T253] addrconf_dad_begin+0x310/0x670 [ 8046.381076][ T253] addrconf_dad_work+0x10b/0xab0 [ 8046.381076][ T253] process_one_work+0x84d/0x18a0 [ 8046.381076][ T253] worker_thread+0x587/0xd30 [ 8046.381076][ T253] kthread+0x28a/0x350 [ 8046.381076][ T253] ret_from_fork+0x31/0x70 [ 8046.381076][ T253] ret_from_fork_asm+0x1a/0x30 [ 8046.381076][ T253] [ 8046.383252][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8046.383252][ T253] netdev_get_by_index+0x5e/0x80 [ 8046.383252][ T253] fib6_nh_init+0x3d8/0x1580 [ 8046.383252][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8046.383252][ T253] ip6_route_add+0x1c/0x140 [ 8046.383252][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8046.383252][ T253] inet6_addr_add+0x4f8/0xa40 [ 8046.383252][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8046.383252][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8046.383252][ T253] netlink_rcv_skb+0x130/0x360 [ 8046.383252][ T253] netlink_unicast+0x449/0x710 [ 8046.383252][ T253] netlink_sendmsg+0x723/0xbe0 [ 8046.383252][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8046.383252][ T253] ___sys_sendmsg+0xee/0x170 [ 8046.383252][ T253] __sys_sendmsg+0xcd/0x170 [ 8046.383252][ T253] do_syscall_64+0xc6/0x1e0 [ 8046.383252][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8046.383252][ T253] [ 8046.385507][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8046.385507][ T253] netdev_get_by_index+0x5e/0x80 [ 8046.385507][ T253] fib6_nh_init+0x3d8/0x1580 [ 8046.385507][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8046.385507][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8046.385507][ T253] ipv6_add_addr+0x411/0x2000 [ 8046.385507][ T253] inet6_addr_add+0x30e/0xa40 [ 8046.385507][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8046.385507][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8046.385507][ T253] netlink_rcv_skb+0x130/0x360 [ 8046.385507][ T253] netlink_unicast+0x449/0x710 [ 8046.385507][ T253] netlink_sendmsg+0x723/0xbe0 [ 8046.385507][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8046.385507][ T253] ___sys_sendmsg+0xee/0x170 [ 8046.385507][ T253] __sys_sendmsg+0xcd/0x170 [ 8046.385507][ T253] do_syscall_64+0xc6/0x1e0 [ 8046.385507][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8046.385507][ T253] [ 8046.387766][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8046.387766][ T253] netdev_get_by_index+0x5e/0x80 [ 8046.387766][ T253] fib6_nh_init+0x3d8/0x1580 [ 8046.387766][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8046.387766][ T253] ip6_route_add+0x1c/0x140 [ 8046.387766][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8046.387766][ T253] addrconf_add_dev+0xe2/0x170 [ 8046.387766][ T253] inet6_addr_add+0x12f/0xa40 [ 8046.387766][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8046.387766][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8046.387766][ T253] netlink_rcv_skb+0x130/0x360 [ 8046.387766][ T253] netlink_unicast+0x449/0x710 [ 8046.387766][ T253] netlink_sendmsg+0x723/0xbe0 [ 8046.387766][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8046.387766][ T253] ___sys_sendmsg+0xee/0x170 [ 8046.387766][ T253] __sys_sendmsg+0xcd/0x170 [ 8046.387766][ T253] do_syscall_64+0xc6/0x1e0 [ 8046.387766][ T253] [ 8046.389995][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8046.389995][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8046.389995][ T253] ipv6_find_idev+0x102/0x170 [ 8046.389995][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8046.389995][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8046.389995][ T253] netlink_rcv_skb+0x130/0x360 [ 8046.389995][ T253] netlink_unicast+0x449/0x710 [ 8046.389995][ T253] netlink_sendmsg+0x723/0xbe0 [ 8046.389995][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8046.389995][ T253] ___sys_sendmsg+0xee/0x170 [ 8046.389995][ T253] __sys_sendmsg+0xcd/0x170 [ 8046.389995][ T253] do_syscall_64+0xc6/0x1e0 [ 8046.389995][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8046.389995][ T253] [ 8046.391735][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8046.391735][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8046.391735][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8046.391735][ T253] ipv6_find_idev+0x102/0x170 [ 8046.391735][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8046.391735][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8046.391735][ T253] netlink_rcv_skb+0x130/0x360 [ 8046.391735][ T253] netlink_unicast+0x449/0x710 [ 8046.391735][ T253] netlink_sendmsg+0x723/0xbe0 [ 8046.391735][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8046.391735][ T253] ___sys_sendmsg+0xee/0x170 [ 8046.391735][ T253] __sys_sendmsg+0xcd/0x170 [ 8046.391735][ T253] do_syscall_64+0xc6/0x1e0 [ 8046.391735][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8046.391735][ T253] [ 8056.642280][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8056.643307][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8056.643307][ T253] dst_init+0x84/0x4a0 [ 8056.643307][ T253] dst_alloc+0x97/0x150 [ 8056.643307][ T253] ip6_dst_alloc+0x23/0x90 [ 8056.643307][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8056.643307][ T253] ip6_pol_route+0x56f/0x840 [ 8056.643307][ T253] fib6_rule_lookup+0x334/0x630 [ 8056.643307][ T253] ip6_route_output_flags+0x259/0x480 [ 8056.643307][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8056.643307][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8056.643307][ T253] netlink_rcv_skb+0x130/0x360 [ 8056.643307][ T253] netlink_unicast+0x449/0x710 [ 8056.643307][ T253] netlink_sendmsg+0x723/0xbe0 [ 8056.643307][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8056.643307][ T253] ___sys_sendmsg+0xee/0x170 [ 8056.643307][ T253] __sys_sendmsg+0xcd/0x170 [ 8056.643307][ T253] do_syscall_64+0xc6/0x1e0 [ 8056.643307][ T253] [ 8056.645492][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8056.645492][ T253] netdev_get_by_index+0x5e/0x80 [ 8056.645492][ T253] fib6_nh_init+0x3d8/0x1580 [ 8056.645492][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8056.645492][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8056.645492][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8056.645492][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8056.645492][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8056.645492][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8056.645492][ T253] addrconf_dad_begin+0x310/0x670 [ 8056.645492][ T253] addrconf_dad_work+0x10b/0xab0 [ 8056.645492][ T253] process_one_work+0x84d/0x18a0 [ 8056.645492][ T253] worker_thread+0x587/0xd30 [ 8056.645492][ T253] kthread+0x28a/0x350 [ 8056.645492][ T253] ret_from_fork+0x31/0x70 [ 8056.645492][ T253] ret_from_fork_asm+0x1a/0x30 [ 8056.645492][ T253] [ 8056.647718][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8056.647718][ T253] netdev_get_by_index+0x5e/0x80 [ 8056.647718][ T253] fib6_nh_init+0x3d8/0x1580 [ 8056.647718][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8056.647718][ T253] ip6_route_add+0x1c/0x140 [ 8056.647718][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8056.647718][ T253] inet6_addr_add+0x4f8/0xa40 [ 8056.647718][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8056.647718][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8056.647718][ T253] netlink_rcv_skb+0x130/0x360 [ 8056.647718][ T253] netlink_unicast+0x449/0x710 [ 8056.647718][ T253] netlink_sendmsg+0x723/0xbe0 [ 8056.647718][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8056.647718][ T253] ___sys_sendmsg+0xee/0x170 [ 8056.647718][ T253] __sys_sendmsg+0xcd/0x170 [ 8056.647718][ T253] do_syscall_64+0xc6/0x1e0 [ 8056.647718][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8056.647718][ T253] [ 8056.649948][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8056.649948][ T253] netdev_get_by_index+0x5e/0x80 [ 8056.649948][ T253] fib6_nh_init+0x3d8/0x1580 [ 8056.649948][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8056.649948][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8056.649948][ T253] ipv6_add_addr+0x411/0x2000 [ 8056.649948][ T253] inet6_addr_add+0x30e/0xa40 [ 8056.649948][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8056.649948][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8056.649948][ T253] netlink_rcv_skb+0x130/0x360 [ 8056.649948][ T253] netlink_unicast+0x449/0x710 [ 8056.649948][ T253] netlink_sendmsg+0x723/0xbe0 [ 8056.649948][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8056.649948][ T253] ___sys_sendmsg+0xee/0x170 [ 8056.649948][ T253] __sys_sendmsg+0xcd/0x170 [ 8056.649948][ T253] do_syscall_64+0xc6/0x1e0 [ 8056.649948][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8056.649948][ T253] [ 8056.652179][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8056.652179][ T253] netdev_get_by_index+0x5e/0x80 [ 8056.652179][ T253] fib6_nh_init+0x3d8/0x1580 [ 8056.652179][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8056.652179][ T253] ip6_route_add+0x1c/0x140 [ 8056.652179][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8056.652179][ T253] addrconf_add_dev+0xe2/0x170 [ 8056.652179][ T253] inet6_addr_add+0x12f/0xa40 [ 8056.652179][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8056.652179][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8056.652179][ T253] netlink_rcv_skb+0x130/0x360 [ 8056.652179][ T253] netlink_unicast+0x449/0x710 [ 8056.652179][ T253] netlink_sendmsg+0x723/0xbe0 [ 8056.652179][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8056.652179][ T253] ___sys_sendmsg+0xee/0x170 [ 8056.652179][ T253] __sys_sendmsg+0xcd/0x170 [ 8056.652179][ T253] do_syscall_64+0xc6/0x1e0 [ 8056.652179][ T253] [ 8056.654389][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8056.654389][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8056.654389][ T253] ipv6_find_idev+0x102/0x170 [ 8056.654389][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8056.654389][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8056.654389][ T253] netlink_rcv_skb+0x130/0x360 [ 8056.654389][ T253] netlink_unicast+0x449/0x710 [ 8056.654389][ T253] netlink_sendmsg+0x723/0xbe0 [ 8056.654389][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8056.654389][ T253] ___sys_sendmsg+0xee/0x170 [ 8056.654389][ T253] __sys_sendmsg+0xcd/0x170 [ 8056.654389][ T253] do_syscall_64+0xc6/0x1e0 [ 8056.654389][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8056.654389][ T253] [ 8056.656112][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8056.656112][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8056.656112][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8056.656112][ T253] ipv6_find_idev+0x102/0x170 [ 8056.656112][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8056.656112][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8056.656112][ T253] netlink_rcv_skb+0x130/0x360 [ 8056.656112][ T253] netlink_unicast+0x449/0x710 [ 8056.656112][ T253] netlink_sendmsg+0x723/0xbe0 [ 8056.656112][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8056.656112][ T253] ___sys_sendmsg+0xee/0x170 [ 8056.656112][ T253] __sys_sendmsg+0xcd/0x170 [ 8056.656112][ T253] do_syscall_64+0xc6/0x1e0 [ 8056.656112][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8056.656112][ T253] [ 8066.842460][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8066.842951][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8066.842951][ T253] dst_init+0x84/0x4a0 [ 8066.842951][ T253] dst_alloc+0x97/0x150 [ 8066.842951][ T253] ip6_dst_alloc+0x23/0x90 [ 8066.842951][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8066.842951][ T253] ip6_pol_route+0x56f/0x840 [ 8066.842951][ T253] fib6_rule_lookup+0x334/0x630 [ 8066.842951][ T253] ip6_route_output_flags+0x259/0x480 [ 8066.842951][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8066.842951][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8066.842951][ T253] netlink_rcv_skb+0x130/0x360 [ 8066.842951][ T253] netlink_unicast+0x449/0x710 [ 8066.842951][ T253] netlink_sendmsg+0x723/0xbe0 [ 8066.842951][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8066.842951][ T253] ___sys_sendmsg+0xee/0x170 [ 8066.842951][ T253] __sys_sendmsg+0xcd/0x170 [ 8066.842951][ T253] do_syscall_64+0xc6/0x1e0 [ 8066.842951][ T253] [ 8066.845167][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8066.845167][ T253] netdev_get_by_index+0x5e/0x80 [ 8066.845167][ T253] fib6_nh_init+0x3d8/0x1580 [ 8066.845167][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8066.845167][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8066.845167][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8066.845167][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8066.845167][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8066.845167][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8066.845167][ T253] addrconf_dad_begin+0x310/0x670 [ 8066.845167][ T253] addrconf_dad_work+0x10b/0xab0 [ 8066.845167][ T253] process_one_work+0x84d/0x18a0 [ 8066.845167][ T253] worker_thread+0x587/0xd30 [ 8066.845167][ T253] kthread+0x28a/0x350 [ 8066.845167][ T253] ret_from_fork+0x31/0x70 [ 8066.845167][ T253] ret_from_fork_asm+0x1a/0x30 [ 8066.845167][ T253] [ 8066.847331][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8066.847331][ T253] netdev_get_by_index+0x5e/0x80 [ 8066.847331][ T253] fib6_nh_init+0x3d8/0x1580 [ 8066.847331][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8066.847331][ T253] ip6_route_add+0x1c/0x140 [ 8066.847331][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8066.847331][ T253] inet6_addr_add+0x4f8/0xa40 [ 8066.847331][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8066.847331][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8066.847331][ T253] netlink_rcv_skb+0x130/0x360 [ 8066.847331][ T253] netlink_unicast+0x449/0x710 [ 8066.847331][ T253] netlink_sendmsg+0x723/0xbe0 [ 8066.847331][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8066.847331][ T253] ___sys_sendmsg+0xee/0x170 [ 8066.847331][ T253] __sys_sendmsg+0xcd/0x170 [ 8066.847331][ T253] do_syscall_64+0xc6/0x1e0 [ 8066.847331][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8066.847331][ T253] [ 8066.849595][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8066.849595][ T253] netdev_get_by_index+0x5e/0x80 [ 8066.849595][ T253] fib6_nh_init+0x3d8/0x1580 [ 8066.849595][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8066.849595][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8066.849595][ T253] ipv6_add_addr+0x411/0x2000 [ 8066.849595][ T253] inet6_addr_add+0x30e/0xa40 [ 8066.849595][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8066.849595][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8066.849595][ T253] netlink_rcv_skb+0x130/0x360 [ 8066.849595][ T253] netlink_unicast+0x449/0x710 [ 8066.849595][ T253] netlink_sendmsg+0x723/0xbe0 [ 8066.849595][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8066.849595][ T253] ___sys_sendmsg+0xee/0x170 [ 8066.849595][ T253] __sys_sendmsg+0xcd/0x170 [ 8066.849595][ T253] do_syscall_64+0xc6/0x1e0 [ 8066.849595][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8066.849595][ T253] [ 8066.851854][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8066.851854][ T253] netdev_get_by_index+0x5e/0x80 [ 8066.851854][ T253] fib6_nh_init+0x3d8/0x1580 [ 8066.851854][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8066.851854][ T253] ip6_route_add+0x1c/0x140 [ 8066.851854][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8066.851854][ T253] addrconf_add_dev+0xe2/0x170 [ 8066.851854][ T253] inet6_addr_add+0x12f/0xa40 [ 8066.851854][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8066.851854][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8066.851854][ T253] netlink_rcv_skb+0x130/0x360 [ 8066.851854][ T253] netlink_unicast+0x449/0x710 [ 8066.851854][ T253] netlink_sendmsg+0x723/0xbe0 [ 8066.851854][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8066.851854][ T253] ___sys_sendmsg+0xee/0x170 [ 8066.851854][ T253] __sys_sendmsg+0xcd/0x170 [ 8066.851854][ T253] do_syscall_64+0xc6/0x1e0 [ 8066.851854][ T253] [ 8066.854083][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8066.854083][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8066.854083][ T253] ipv6_find_idev+0x102/0x170 [ 8066.854083][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8066.854083][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8066.854083][ T253] netlink_rcv_skb+0x130/0x360 [ 8066.854083][ T253] netlink_unicast+0x449/0x710 [ 8066.854083][ T253] netlink_sendmsg+0x723/0xbe0 [ 8066.854083][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8066.854083][ T253] ___sys_sendmsg+0xee/0x170 [ 8066.854083][ T253] __sys_sendmsg+0xcd/0x170 [ 8066.854083][ T253] do_syscall_64+0xc6/0x1e0 [ 8066.854083][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8066.854083][ T253] [ 8066.855819][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8066.855819][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8066.855819][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8066.855819][ T253] ipv6_find_idev+0x102/0x170 [ 8066.855819][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8066.855819][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8066.855819][ T253] netlink_rcv_skb+0x130/0x360 [ 8066.855819][ T253] netlink_unicast+0x449/0x710 [ 8066.855819][ T253] netlink_sendmsg+0x723/0xbe0 [ 8066.855819][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8066.855819][ T253] ___sys_sendmsg+0xee/0x170 [ 8066.855819][ T253] __sys_sendmsg+0xcd/0x170 [ 8066.855819][ T253] do_syscall_64+0xc6/0x1e0 [ 8066.855819][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8066.855819][ T253] [ 8077.026302][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8077.026795][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8077.026795][ T253] dst_init+0x84/0x4a0 [ 8077.026795][ T253] dst_alloc+0x97/0x150 [ 8077.026795][ T253] ip6_dst_alloc+0x23/0x90 [ 8077.026795][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8077.026795][ T253] ip6_pol_route+0x56f/0x840 [ 8077.026795][ T253] fib6_rule_lookup+0x334/0x630 [ 8077.026795][ T253] ip6_route_output_flags+0x259/0x480 [ 8077.026795][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8077.026795][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8077.026795][ T253] netlink_rcv_skb+0x130/0x360 [ 8077.026795][ T253] netlink_unicast+0x449/0x710 [ 8077.026795][ T253] netlink_sendmsg+0x723/0xbe0 [ 8077.026795][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8077.026795][ T253] ___sys_sendmsg+0xee/0x170 [ 8077.026795][ T253] __sys_sendmsg+0xcd/0x170 [ 8077.026795][ T253] do_syscall_64+0xc6/0x1e0 [ 8077.026795][ T253] [ 8077.029001][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8077.029001][ T253] netdev_get_by_index+0x5e/0x80 [ 8077.029001][ T253] fib6_nh_init+0x3d8/0x1580 [ 8077.029001][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8077.029001][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8077.029001][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8077.029001][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8077.029001][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8077.029001][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8077.029001][ T253] addrconf_dad_begin+0x310/0x670 [ 8077.029001][ T253] addrconf_dad_work+0x10b/0xab0 [ 8077.029001][ T253] process_one_work+0x84d/0x18a0 [ 8077.029001][ T253] worker_thread+0x587/0xd30 [ 8077.029001][ T253] kthread+0x28a/0x350 [ 8077.029001][ T253] ret_from_fork+0x31/0x70 [ 8077.029001][ T253] ret_from_fork_asm+0x1a/0x30 [ 8077.029001][ T253] [ 8077.031173][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8077.031173][ T253] netdev_get_by_index+0x5e/0x80 [ 8077.031173][ T253] fib6_nh_init+0x3d8/0x1580 [ 8077.031173][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8077.031173][ T253] ip6_route_add+0x1c/0x140 [ 8077.031173][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8077.031173][ T253] inet6_addr_add+0x4f8/0xa40 [ 8077.031173][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8077.031173][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8077.031173][ T253] netlink_rcv_skb+0x130/0x360 [ 8077.031173][ T253] netlink_unicast+0x449/0x710 [ 8077.031173][ T253] netlink_sendmsg+0x723/0xbe0 [ 8077.031173][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8077.031173][ T253] ___sys_sendmsg+0xee/0x170 [ 8077.031173][ T253] __sys_sendmsg+0xcd/0x170 [ 8077.031173][ T253] do_syscall_64+0xc6/0x1e0 [ 8077.031173][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8077.031173][ T253] [ 8077.033476][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8077.033476][ T253] netdev_get_by_index+0x5e/0x80 [ 8077.033476][ T253] fib6_nh_init+0x3d8/0x1580 [ 8077.033476][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8077.033476][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8077.033476][ T253] ipv6_add_addr+0x411/0x2000 [ 8077.033476][ T253] inet6_addr_add+0x30e/0xa40 [ 8077.033476][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8077.033476][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8077.033476][ T253] netlink_rcv_skb+0x130/0x360 [ 8077.033476][ T253] netlink_unicast+0x449/0x710 [ 8077.033476][ T253] netlink_sendmsg+0x723/0xbe0 [ 8077.033476][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8077.033476][ T253] ___sys_sendmsg+0xee/0x170 [ 8077.033476][ T253] __sys_sendmsg+0xcd/0x170 [ 8077.033476][ T253] do_syscall_64+0xc6/0x1e0 [ 8077.033476][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8077.033476][ T253] [ 8077.035745][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8077.035745][ T253] netdev_get_by_index+0x5e/0x80 [ 8077.035745][ T253] fib6_nh_init+0x3d8/0x1580 [ 8077.035745][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8077.035745][ T253] ip6_route_add+0x1c/0x140 [ 8077.035745][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8077.035745][ T253] addrconf_add_dev+0xe2/0x170 [ 8077.035745][ T253] inet6_addr_add+0x12f/0xa40 [ 8077.035745][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8077.035745][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8077.035745][ T253] netlink_rcv_skb+0x130/0x360 [ 8077.035745][ T253] netlink_unicast+0x449/0x710 [ 8077.035745][ T253] netlink_sendmsg+0x723/0xbe0 [ 8077.035745][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8077.035745][ T253] ___sys_sendmsg+0xee/0x170 [ 8077.035745][ T253] __sys_sendmsg+0xcd/0x170 [ 8077.035745][ T253] do_syscall_64+0xc6/0x1e0 [ 8077.035745][ T253] [ 8077.037955][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8077.037955][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8077.037955][ T253] ipv6_find_idev+0x102/0x170 [ 8077.037955][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8077.037955][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8077.037955][ T253] netlink_rcv_skb+0x130/0x360 [ 8077.037955][ T253] netlink_unicast+0x449/0x710 [ 8077.037955][ T253] netlink_sendmsg+0x723/0xbe0 [ 8077.037955][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8077.037955][ T253] ___sys_sendmsg+0xee/0x170 [ 8077.037955][ T253] __sys_sendmsg+0xcd/0x170 [ 8077.037955][ T253] do_syscall_64+0xc6/0x1e0 [ 8077.037955][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8077.037955][ T253] [ 8077.039689][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8077.039689][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8077.039689][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8077.039689][ T253] ipv6_find_idev+0x102/0x170 [ 8077.039689][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8077.039689][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8077.039689][ T253] netlink_rcv_skb+0x130/0x360 [ 8077.039689][ T253] netlink_unicast+0x449/0x710 [ 8077.039689][ T253] netlink_sendmsg+0x723/0xbe0 [ 8077.039689][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8077.039689][ T253] ___sys_sendmsg+0xee/0x170 [ 8077.039689][ T253] __sys_sendmsg+0xcd/0x170 [ 8077.039689][ T253] do_syscall_64+0xc6/0x1e0 [ 8077.039689][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8077.039689][ T253] [ 8087.282344][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8087.282866][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8087.282866][ T253] dst_init+0x84/0x4a0 [ 8087.282866][ T253] dst_alloc+0x97/0x150 [ 8087.282866][ T253] ip6_dst_alloc+0x23/0x90 [ 8087.282866][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8087.282866][ T253] ip6_pol_route+0x56f/0x840 [ 8087.282866][ T253] fib6_rule_lookup+0x334/0x630 [ 8087.282866][ T253] ip6_route_output_flags+0x259/0x480 [ 8087.282866][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8087.282866][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8087.282866][ T253] netlink_rcv_skb+0x130/0x360 [ 8087.282866][ T253] netlink_unicast+0x449/0x710 [ 8087.282866][ T253] netlink_sendmsg+0x723/0xbe0 [ 8087.282866][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8087.282866][ T253] ___sys_sendmsg+0xee/0x170 [ 8087.282866][ T253] __sys_sendmsg+0xcd/0x170 [ 8087.282866][ T253] do_syscall_64+0xc6/0x1e0 [ 8087.282866][ T253] [ 8087.285082][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8087.285082][ T253] netdev_get_by_index+0x5e/0x80 [ 8087.285082][ T253] fib6_nh_init+0x3d8/0x1580 [ 8087.285082][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8087.285082][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8087.285082][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8087.285082][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8087.285082][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8087.285082][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8087.285082][ T253] addrconf_dad_begin+0x310/0x670 [ 8087.285082][ T253] addrconf_dad_work+0x10b/0xab0 [ 8087.285082][ T253] process_one_work+0x84d/0x18a0 [ 8087.285082][ T253] worker_thread+0x587/0xd30 [ 8087.285082][ T253] kthread+0x28a/0x350 [ 8087.285082][ T253] ret_from_fork+0x31/0x70 [ 8087.285082][ T253] ret_from_fork_asm+0x1a/0x30 [ 8087.285082][ T253] [ 8087.287251][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8087.287251][ T253] netdev_get_by_index+0x5e/0x80 [ 8087.287251][ T253] fib6_nh_init+0x3d8/0x1580 [ 8087.287251][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8087.287251][ T253] ip6_route_add+0x1c/0x140 [ 8087.287251][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8087.287251][ T253] inet6_addr_add+0x4f8/0xa40 [ 8087.287251][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8087.287251][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8087.287251][ T253] netlink_rcv_skb+0x130/0x360 [ 8087.287251][ T253] netlink_unicast+0x449/0x710 [ 8087.287251][ T253] netlink_sendmsg+0x723/0xbe0 [ 8087.287251][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8087.287251][ T253] ___sys_sendmsg+0xee/0x170 [ 8087.287251][ T253] __sys_sendmsg+0xcd/0x170 [ 8087.287251][ T253] do_syscall_64+0xc6/0x1e0 [ 8087.287251][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8087.287251][ T253] [ 8087.289513][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8087.289513][ T253] netdev_get_by_index+0x5e/0x80 [ 8087.289513][ T253] fib6_nh_init+0x3d8/0x1580 [ 8087.289513][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8087.289513][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8087.289513][ T253] ipv6_add_addr+0x411/0x2000 [ 8087.289513][ T253] inet6_addr_add+0x30e/0xa40 [ 8087.289513][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8087.289513][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8087.289513][ T253] netlink_rcv_skb+0x130/0x360 [ 8087.289513][ T253] netlink_unicast+0x449/0x710 [ 8087.289513][ T253] netlink_sendmsg+0x723/0xbe0 [ 8087.289513][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8087.289513][ T253] ___sys_sendmsg+0xee/0x170 [ 8087.289513][ T253] __sys_sendmsg+0xcd/0x170 [ 8087.289513][ T253] do_syscall_64+0xc6/0x1e0 [ 8087.289513][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8087.289513][ T253] [ 8087.291777][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8087.291777][ T253] netdev_get_by_index+0x5e/0x80 [ 8087.291777][ T253] fib6_nh_init+0x3d8/0x1580 [ 8087.291777][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8087.291777][ T253] ip6_route_add+0x1c/0x140 [ 8087.291777][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8087.291777][ T253] addrconf_add_dev+0xe2/0x170 [ 8087.291777][ T253] inet6_addr_add+0x12f/0xa40 [ 8087.291777][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8087.291777][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8087.291777][ T253] netlink_rcv_skb+0x130/0x360 [ 8087.291777][ T253] netlink_unicast+0x449/0x710 [ 8087.291777][ T253] netlink_sendmsg+0x723/0xbe0 [ 8087.291777][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8087.291777][ T253] ___sys_sendmsg+0xee/0x170 [ 8087.291777][ T253] __sys_sendmsg+0xcd/0x170 [ 8087.291777][ T253] do_syscall_64+0xc6/0x1e0 [ 8087.291777][ T253] [ 8087.293998][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8087.293998][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8087.293998][ T253] ipv6_find_idev+0x102/0x170 [ 8087.293998][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8087.293998][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8087.293998][ T253] netlink_rcv_skb+0x130/0x360 [ 8087.293998][ T253] netlink_unicast+0x449/0x710 [ 8087.293998][ T253] netlink_sendmsg+0x723/0xbe0 [ 8087.293998][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8087.293998][ T253] ___sys_sendmsg+0xee/0x170 [ 8087.293998][ T253] __sys_sendmsg+0xcd/0x170 [ 8087.293998][ T253] do_syscall_64+0xc6/0x1e0 [ 8087.293998][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8087.293998][ T253] [ 8087.295735][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8087.295735][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8087.295735][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8087.295735][ T253] ipv6_find_idev+0x102/0x170 [ 8087.295735][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8087.295735][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8087.295735][ T253] netlink_rcv_skb+0x130/0x360 [ 8087.295735][ T253] netlink_unicast+0x449/0x710 [ 8087.295735][ T253] netlink_sendmsg+0x723/0xbe0 [ 8087.295735][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8087.295735][ T253] ___sys_sendmsg+0xee/0x170 [ 8087.295735][ T253] __sys_sendmsg+0xcd/0x170 [ 8087.295735][ T253] do_syscall_64+0xc6/0x1e0 [ 8087.295735][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8087.295735][ T253] [ 8097.538335][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8097.538829][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8097.538829][ T253] dst_init+0x84/0x4a0 [ 8097.538829][ T253] dst_alloc+0x97/0x150 [ 8097.538829][ T253] ip6_dst_alloc+0x23/0x90 [ 8097.538829][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8097.538829][ T253] ip6_pol_route+0x56f/0x840 [ 8097.538829][ T253] fib6_rule_lookup+0x334/0x630 [ 8097.538829][ T253] ip6_route_output_flags+0x259/0x480 [ 8097.538829][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8097.538829][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8097.538829][ T253] netlink_rcv_skb+0x130/0x360 [ 8097.538829][ T253] netlink_unicast+0x449/0x710 [ 8097.538829][ T253] netlink_sendmsg+0x723/0xbe0 [ 8097.538829][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8097.538829][ T253] ___sys_sendmsg+0xee/0x170 [ 8097.538829][ T253] __sys_sendmsg+0xcd/0x170 [ 8097.538829][ T253] do_syscall_64+0xc6/0x1e0 [ 8097.538829][ T253] [ 8097.541052][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8097.541052][ T253] netdev_get_by_index+0x5e/0x80 [ 8097.541052][ T253] fib6_nh_init+0x3d8/0x1580 [ 8097.541052][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8097.541052][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8097.541052][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8097.541052][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8097.541052][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8097.541052][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8097.541052][ T253] addrconf_dad_begin+0x310/0x670 [ 8097.541052][ T253] addrconf_dad_work+0x10b/0xab0 [ 8097.541052][ T253] process_one_work+0x84d/0x18a0 [ 8097.541052][ T253] worker_thread+0x587/0xd30 [ 8097.541052][ T253] kthread+0x28a/0x350 [ 8097.541052][ T253] ret_from_fork+0x31/0x70 [ 8097.541052][ T253] ret_from_fork_asm+0x1a/0x30 [ 8097.541052][ T253] [ 8097.543231][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8097.543231][ T253] netdev_get_by_index+0x5e/0x80 [ 8097.543231][ T253] fib6_nh_init+0x3d8/0x1580 [ 8097.543231][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8097.543231][ T253] ip6_route_add+0x1c/0x140 [ 8097.543231][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8097.543231][ T253] inet6_addr_add+0x4f8/0xa40 [ 8097.543231][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8097.543231][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8097.543231][ T253] netlink_rcv_skb+0x130/0x360 [ 8097.543231][ T253] netlink_unicast+0x449/0x710 [ 8097.543231][ T253] netlink_sendmsg+0x723/0xbe0 [ 8097.543231][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8097.543231][ T253] ___sys_sendmsg+0xee/0x170 [ 8097.543231][ T253] __sys_sendmsg+0xcd/0x170 [ 8097.543231][ T253] do_syscall_64+0xc6/0x1e0 [ 8097.543231][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8097.543231][ T253] [ 8097.545501][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8097.545501][ T253] netdev_get_by_index+0x5e/0x80 [ 8097.545501][ T253] fib6_nh_init+0x3d8/0x1580 [ 8097.545501][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8097.545501][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8097.545501][ T253] ipv6_add_addr+0x411/0x2000 [ 8097.545501][ T253] inet6_addr_add+0x30e/0xa40 [ 8097.545501][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8097.545501][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8097.545501][ T253] netlink_rcv_skb+0x130/0x360 [ 8097.545501][ T253] netlink_unicast+0x449/0x710 [ 8097.545501][ T253] netlink_sendmsg+0x723/0xbe0 [ 8097.545501][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8097.545501][ T253] ___sys_sendmsg+0xee/0x170 [ 8097.545501][ T253] __sys_sendmsg+0xcd/0x170 [ 8097.545501][ T253] do_syscall_64+0xc6/0x1e0 [ 8097.545501][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8097.545501][ T253] [ 8097.547759][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8097.547759][ T253] netdev_get_by_index+0x5e/0x80 [ 8097.547759][ T253] fib6_nh_init+0x3d8/0x1580 [ 8097.547759][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8097.547759][ T253] ip6_route_add+0x1c/0x140 [ 8097.547759][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8097.547759][ T253] addrconf_add_dev+0xe2/0x170 [ 8097.547759][ T253] inet6_addr_add+0x12f/0xa40 [ 8097.547759][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8097.547759][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8097.547759][ T253] netlink_rcv_skb+0x130/0x360 [ 8097.547759][ T253] netlink_unicast+0x449/0x710 [ 8097.547759][ T253] netlink_sendmsg+0x723/0xbe0 [ 8097.547759][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8097.547759][ T253] ___sys_sendmsg+0xee/0x170 [ 8097.547759][ T253] __sys_sendmsg+0xcd/0x170 [ 8097.547759][ T253] do_syscall_64+0xc6/0x1e0 [ 8097.547759][ T253] [ 8097.549979][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8097.549979][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8097.549979][ T253] ipv6_find_idev+0x102/0x170 [ 8097.549979][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8097.549979][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8097.549979][ T253] netlink_rcv_skb+0x130/0x360 [ 8097.549979][ T253] netlink_unicast+0x449/0x710 [ 8097.549979][ T253] netlink_sendmsg+0x723/0xbe0 [ 8097.549979][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8097.549979][ T253] ___sys_sendmsg+0xee/0x170 [ 8097.549979][ T253] __sys_sendmsg+0xcd/0x170 [ 8097.549979][ T253] do_syscall_64+0xc6/0x1e0 [ 8097.549979][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8097.549979][ T253] [ 8097.551718][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8097.551718][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8097.551718][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8097.551718][ T253] ipv6_find_idev+0x102/0x170 [ 8097.551718][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8097.551718][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8097.551718][ T253] netlink_rcv_skb+0x130/0x360 [ 8097.551718][ T253] netlink_unicast+0x449/0x710 [ 8097.551718][ T253] netlink_sendmsg+0x723/0xbe0 [ 8097.551718][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8097.551718][ T253] ___sys_sendmsg+0xee/0x170 [ 8097.551718][ T253] __sys_sendmsg+0xcd/0x170 [ 8097.551718][ T253] do_syscall_64+0xc6/0x1e0 [ 8097.551718][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8097.551718][ T253] [ 8107.610332][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8107.610826][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8107.610826][ T253] dst_init+0x84/0x4a0 [ 8107.610826][ T253] dst_alloc+0x97/0x150 [ 8107.610826][ T253] ip6_dst_alloc+0x23/0x90 [ 8107.610826][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8107.610826][ T253] ip6_pol_route+0x56f/0x840 [ 8107.610826][ T253] fib6_rule_lookup+0x334/0x630 [ 8107.610826][ T253] ip6_route_output_flags+0x259/0x480 [ 8107.610826][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8107.610826][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8107.610826][ T253] netlink_rcv_skb+0x130/0x360 [ 8107.610826][ T253] netlink_unicast+0x449/0x710 [ 8107.610826][ T253] netlink_sendmsg+0x723/0xbe0 [ 8107.610826][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8107.610826][ T253] ___sys_sendmsg+0xee/0x170 [ 8107.610826][ T253] __sys_sendmsg+0xcd/0x170 [ 8107.610826][ T253] do_syscall_64+0xc6/0x1e0 [ 8107.610826][ T253] [ 8107.613052][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8107.613052][ T253] netdev_get_by_index+0x5e/0x80 [ 8107.613052][ T253] fib6_nh_init+0x3d8/0x1580 [ 8107.613052][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8107.613052][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8107.613052][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8107.613052][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8107.613052][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8107.613052][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8107.613052][ T253] addrconf_dad_begin+0x310/0x670 [ 8107.613052][ T253] addrconf_dad_work+0x10b/0xab0 [ 8107.613052][ T253] process_one_work+0x84d/0x18a0 [ 8107.613052][ T253] worker_thread+0x587/0xd30 [ 8107.613052][ T253] kthread+0x28a/0x350 [ 8107.613052][ T253] ret_from_fork+0x31/0x70 [ 8107.613052][ T253] ret_from_fork_asm+0x1a/0x30 [ 8107.613052][ T253] [ 8107.615222][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8107.615222][ T253] netdev_get_by_index+0x5e/0x80 [ 8107.615222][ T253] fib6_nh_init+0x3d8/0x1580 [ 8107.615222][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8107.615222][ T253] ip6_route_add+0x1c/0x140 [ 8107.615222][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8107.615222][ T253] inet6_addr_add+0x4f8/0xa40 [ 8107.615222][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8107.615222][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8107.615222][ T253] netlink_rcv_skb+0x130/0x360 [ 8107.615222][ T253] netlink_unicast+0x449/0x710 [ 8107.615222][ T253] netlink_sendmsg+0x723/0xbe0 [ 8107.615222][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8107.615222][ T253] ___sys_sendmsg+0xee/0x170 [ 8107.615222][ T253] __sys_sendmsg+0xcd/0x170 [ 8107.615222][ T253] do_syscall_64+0xc6/0x1e0 [ 8107.615222][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8107.615222][ T253] [ 8107.617480][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8107.617480][ T253] netdev_get_by_index+0x5e/0x80 [ 8107.617480][ T253] fib6_nh_init+0x3d8/0x1580 [ 8107.617480][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8107.617480][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8107.617480][ T253] ipv6_add_addr+0x411/0x2000 [ 8107.617480][ T253] inet6_addr_add+0x30e/0xa40 [ 8107.617480][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8107.617480][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8107.617480][ T253] netlink_rcv_skb+0x130/0x360 [ 8107.617480][ T253] netlink_unicast+0x449/0x710 [ 8107.617480][ T253] netlink_sendmsg+0x723/0xbe0 [ 8107.617480][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8107.617480][ T253] ___sys_sendmsg+0xee/0x170 [ 8107.617480][ T253] __sys_sendmsg+0xcd/0x170 [ 8107.617480][ T253] do_syscall_64+0xc6/0x1e0 [ 8107.617480][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8107.617480][ T253] [ 8107.619743][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8107.619743][ T253] netdev_get_by_index+0x5e/0x80 [ 8107.619743][ T253] fib6_nh_init+0x3d8/0x1580 [ 8107.619743][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8107.619743][ T253] ip6_route_add+0x1c/0x140 [ 8107.619743][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8107.619743][ T253] addrconf_add_dev+0xe2/0x170 [ 8107.619743][ T253] inet6_addr_add+0x12f/0xa40 [ 8107.619743][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8107.619743][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8107.619743][ T253] netlink_rcv_skb+0x130/0x360 [ 8107.619743][ T253] netlink_unicast+0x449/0x710 [ 8107.619743][ T253] netlink_sendmsg+0x723/0xbe0 [ 8107.619743][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8107.619743][ T253] ___sys_sendmsg+0xee/0x170 [ 8107.619743][ T253] __sys_sendmsg+0xcd/0x170 [ 8107.619743][ T253] do_syscall_64+0xc6/0x1e0 [ 8107.619743][ T253] [ 8107.621957][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8107.621957][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8107.621957][ T253] ipv6_find_idev+0x102/0x170 [ 8107.621957][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8107.621957][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8107.621957][ T253] netlink_rcv_skb+0x130/0x360 [ 8107.621957][ T253] netlink_unicast+0x449/0x710 [ 8107.621957][ T253] netlink_sendmsg+0x723/0xbe0 [ 8107.621957][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8107.621957][ T253] ___sys_sendmsg+0xee/0x170 [ 8107.621957][ T253] __sys_sendmsg+0xcd/0x170 [ 8107.621957][ T253] do_syscall_64+0xc6/0x1e0 [ 8107.621957][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8107.621957][ T253] [ 8107.623719][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8107.623719][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8107.623719][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8107.623719][ T253] ipv6_find_idev+0x102/0x170 [ 8107.623719][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8107.623719][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8107.623719][ T253] netlink_rcv_skb+0x130/0x360 [ 8107.623719][ T253] netlink_unicast+0x449/0x710 [ 8107.623719][ T253] netlink_sendmsg+0x723/0xbe0 [ 8107.623719][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8107.623719][ T253] ___sys_sendmsg+0xee/0x170 [ 8107.623719][ T253] __sys_sendmsg+0xcd/0x170 [ 8107.623719][ T253] do_syscall_64+0xc6/0x1e0 [ 8107.623719][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8107.623719][ T253] [ 8117.866273][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8117.866746][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8117.866746][ T253] dst_init+0x84/0x4a0 [ 8117.866746][ T253] dst_alloc+0x97/0x150 [ 8117.866746][ T253] ip6_dst_alloc+0x23/0x90 [ 8117.866746][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8117.866746][ T253] ip6_pol_route+0x56f/0x840 [ 8117.866746][ T253] fib6_rule_lookup+0x334/0x630 [ 8117.866746][ T253] ip6_route_output_flags+0x259/0x480 [ 8117.866746][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8117.866746][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8117.866746][ T253] netlink_rcv_skb+0x130/0x360 [ 8117.866746][ T253] netlink_unicast+0x449/0x710 [ 8117.866746][ T253] netlink_sendmsg+0x723/0xbe0 [ 8117.866746][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8117.866746][ T253] ___sys_sendmsg+0xee/0x170 [ 8117.866746][ T253] __sys_sendmsg+0xcd/0x170 [ 8117.866746][ T253] do_syscall_64+0xc6/0x1e0 [ 8117.866746][ T253] [ 8117.868929][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8117.868929][ T253] netdev_get_by_index+0x5e/0x80 [ 8117.868929][ T253] fib6_nh_init+0x3d8/0x1580 [ 8117.868929][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8117.868929][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8117.868929][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8117.868929][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8117.868929][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8117.868929][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8117.868929][ T253] addrconf_dad_begin+0x310/0x670 [ 8117.868929][ T253] addrconf_dad_work+0x10b/0xab0 [ 8117.868929][ T253] process_one_work+0x84d/0x18a0 [ 8117.868929][ T253] worker_thread+0x587/0xd30 [ 8117.868929][ T253] kthread+0x28a/0x350 [ 8117.868929][ T253] ret_from_fork+0x31/0x70 [ 8117.868929][ T253] ret_from_fork_asm+0x1a/0x30 [ 8117.868929][ T253] [ 8117.871098][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8117.871098][ T253] netdev_get_by_index+0x5e/0x80 [ 8117.871098][ T253] fib6_nh_init+0x3d8/0x1580 [ 8117.871098][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8117.871098][ T253] ip6_route_add+0x1c/0x140 [ 8117.871098][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8117.871098][ T253] inet6_addr_add+0x4f8/0xa40 [ 8117.871098][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8117.871098][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8117.871098][ T253] netlink_rcv_skb+0x130/0x360 [ 8117.871098][ T253] netlink_unicast+0x449/0x710 [ 8117.871098][ T253] netlink_sendmsg+0x723/0xbe0 [ 8117.871098][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8117.871098][ T253] ___sys_sendmsg+0xee/0x170 [ 8117.871098][ T253] __sys_sendmsg+0xcd/0x170 [ 8117.871098][ T253] do_syscall_64+0xc6/0x1e0 [ 8117.871098][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8117.871098][ T253] [ 8117.873341][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8117.873341][ T253] netdev_get_by_index+0x5e/0x80 [ 8117.873341][ T253] fib6_nh_init+0x3d8/0x1580 [ 8117.873341][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8117.873341][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8117.873341][ T253] ipv6_add_addr+0x411/0x2000 [ 8117.873341][ T253] inet6_addr_add+0x30e/0xa40 [ 8117.873341][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8117.873341][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8117.873341][ T253] netlink_rcv_skb+0x130/0x360 [ 8117.873341][ T253] netlink_unicast+0x449/0x710 [ 8117.873341][ T253] netlink_sendmsg+0x723/0xbe0 [ 8117.873341][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8117.873341][ T253] ___sys_sendmsg+0xee/0x170 [ 8117.873341][ T253] __sys_sendmsg+0xcd/0x170 [ 8117.873341][ T253] do_syscall_64+0xc6/0x1e0 [ 8117.873341][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8117.873341][ T253] [ 8117.875569][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8117.875569][ T253] netdev_get_by_index+0x5e/0x80 [ 8117.875569][ T253] fib6_nh_init+0x3d8/0x1580 [ 8117.875569][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8117.875569][ T253] ip6_route_add+0x1c/0x140 [ 8117.875569][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8117.875569][ T253] addrconf_add_dev+0xe2/0x170 [ 8117.875569][ T253] inet6_addr_add+0x12f/0xa40 [ 8117.875569][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8117.875569][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8117.875569][ T253] netlink_rcv_skb+0x130/0x360 [ 8117.875569][ T253] netlink_unicast+0x449/0x710 [ 8117.875569][ T253] netlink_sendmsg+0x723/0xbe0 [ 8117.875569][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8117.875569][ T253] ___sys_sendmsg+0xee/0x170 [ 8117.875569][ T253] __sys_sendmsg+0xcd/0x170 [ 8117.875569][ T253] do_syscall_64+0xc6/0x1e0 [ 8117.875569][ T253] [ 8117.877762][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8117.877762][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8117.877762][ T253] ipv6_find_idev+0x102/0x170 [ 8117.877762][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8117.877762][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8117.877762][ T253] netlink_rcv_skb+0x130/0x360 [ 8117.877762][ T253] netlink_unicast+0x449/0x710 [ 8117.877762][ T253] netlink_sendmsg+0x723/0xbe0 [ 8117.877762][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8117.877762][ T253] ___sys_sendmsg+0xee/0x170 [ 8117.877762][ T253] __sys_sendmsg+0xcd/0x170 [ 8117.877762][ T253] do_syscall_64+0xc6/0x1e0 [ 8117.877762][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8117.877762][ T253] [ 8117.879483][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8117.879483][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8117.879483][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8117.879483][ T253] ipv6_find_idev+0x102/0x170 [ 8117.879483][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8117.879483][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8117.879483][ T253] netlink_rcv_skb+0x130/0x360 [ 8117.879483][ T253] netlink_unicast+0x449/0x710 [ 8117.879483][ T253] netlink_sendmsg+0x723/0xbe0 [ 8117.879483][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8117.879483][ T253] ___sys_sendmsg+0xee/0x170 [ 8117.879483][ T253] __sys_sendmsg+0xcd/0x170 [ 8117.879483][ T253] do_syscall_64+0xc6/0x1e0 [ 8117.879483][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8117.879483][ T253] [ 8128.122305][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8128.122774][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8128.122774][ T253] dst_init+0x84/0x4a0 [ 8128.122774][ T253] dst_alloc+0x97/0x150 [ 8128.122774][ T253] ip6_dst_alloc+0x23/0x90 [ 8128.122774][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8128.122774][ T253] ip6_pol_route+0x56f/0x840 [ 8128.122774][ T253] fib6_rule_lookup+0x334/0x630 [ 8128.122774][ T253] ip6_route_output_flags+0x259/0x480 [ 8128.122774][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8128.122774][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8128.122774][ T253] netlink_rcv_skb+0x130/0x360 [ 8128.122774][ T253] netlink_unicast+0x449/0x710 [ 8128.122774][ T253] netlink_sendmsg+0x723/0xbe0 [ 8128.122774][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8128.122774][ T253] ___sys_sendmsg+0xee/0x170 [ 8128.122774][ T253] __sys_sendmsg+0xcd/0x170 [ 8128.122774][ T253] do_syscall_64+0xc6/0x1e0 [ 8128.122774][ T253] [ 8128.124974][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8128.124974][ T253] netdev_get_by_index+0x5e/0x80 [ 8128.124974][ T253] fib6_nh_init+0x3d8/0x1580 [ 8128.124974][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8128.124974][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8128.124974][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8128.124974][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8128.124974][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8128.124974][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8128.124974][ T253] addrconf_dad_begin+0x310/0x670 [ 8128.124974][ T253] addrconf_dad_work+0x10b/0xab0 [ 8128.124974][ T253] process_one_work+0x84d/0x18a0 [ 8128.124974][ T253] worker_thread+0x587/0xd30 [ 8128.124974][ T253] kthread+0x28a/0x350 [ 8128.124974][ T253] ret_from_fork+0x31/0x70 [ 8128.124974][ T253] ret_from_fork_asm+0x1a/0x30 [ 8128.124974][ T253] [ 8128.127114][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8128.127114][ T253] netdev_get_by_index+0x5e/0x80 [ 8128.127114][ T253] fib6_nh_init+0x3d8/0x1580 [ 8128.127114][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8128.127114][ T253] ip6_route_add+0x1c/0x140 [ 8128.127114][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8128.127114][ T253] inet6_addr_add+0x4f8/0xa40 [ 8128.127114][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8128.127114][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8128.127114][ T253] netlink_rcv_skb+0x130/0x360 [ 8128.127114][ T253] netlink_unicast+0x449/0x710 [ 8128.127114][ T253] netlink_sendmsg+0x723/0xbe0 [ 8128.127114][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8128.127114][ T253] ___sys_sendmsg+0xee/0x170 [ 8128.127114][ T253] __sys_sendmsg+0xcd/0x170 [ 8128.127114][ T253] do_syscall_64+0xc6/0x1e0 [ 8128.127114][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8128.127114][ T253] [ 8128.129365][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8128.129365][ T253] netdev_get_by_index+0x5e/0x80 [ 8128.129365][ T253] fib6_nh_init+0x3d8/0x1580 [ 8128.129365][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8128.129365][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8128.129365][ T253] ipv6_add_addr+0x411/0x2000 [ 8128.129365][ T253] inet6_addr_add+0x30e/0xa40 [ 8128.129365][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8128.129365][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8128.129365][ T253] netlink_rcv_skb+0x130/0x360 [ 8128.129365][ T253] netlink_unicast+0x449/0x710 [ 8128.129365][ T253] netlink_sendmsg+0x723/0xbe0 [ 8128.129365][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8128.129365][ T253] ___sys_sendmsg+0xee/0x170 [ 8128.129365][ T253] __sys_sendmsg+0xcd/0x170 [ 8128.129365][ T253] do_syscall_64+0xc6/0x1e0 [ 8128.129365][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8128.129365][ T253] [ 8128.131596][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8128.131596][ T253] netdev_get_by_index+0x5e/0x80 [ 8128.131596][ T253] fib6_nh_init+0x3d8/0x1580 [ 8128.131596][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8128.131596][ T253] ip6_route_add+0x1c/0x140 [ 8128.131596][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8128.131596][ T253] addrconf_add_dev+0xe2/0x170 [ 8128.131596][ T253] inet6_addr_add+0x12f/0xa40 [ 8128.131596][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8128.131596][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8128.131596][ T253] netlink_rcv_skb+0x130/0x360 [ 8128.131596][ T253] netlink_unicast+0x449/0x710 [ 8128.131596][ T253] netlink_sendmsg+0x723/0xbe0 [ 8128.131596][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8128.131596][ T253] ___sys_sendmsg+0xee/0x170 [ 8128.131596][ T253] __sys_sendmsg+0xcd/0x170 [ 8128.131596][ T253] do_syscall_64+0xc6/0x1e0 [ 8128.131596][ T253] [ 8128.133833][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8128.133833][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8128.133833][ T253] ipv6_find_idev+0x102/0x170 [ 8128.133833][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8128.133833][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8128.133833][ T253] netlink_rcv_skb+0x130/0x360 [ 8128.133833][ T253] netlink_unicast+0x449/0x710 [ 8128.133833][ T253] netlink_sendmsg+0x723/0xbe0 [ 8128.133833][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8128.133833][ T253] ___sys_sendmsg+0xee/0x170 [ 8128.133833][ T253] __sys_sendmsg+0xcd/0x170 [ 8128.133833][ T253] do_syscall_64+0xc6/0x1e0 [ 8128.133833][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8128.133833][ T253] [ 8128.135553][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8128.135553][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8128.135553][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8128.135553][ T253] ipv6_find_idev+0x102/0x170 [ 8128.135553][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8128.135553][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8128.135553][ T253] netlink_rcv_skb+0x130/0x360 [ 8128.135553][ T253] netlink_unicast+0x449/0x710 [ 8128.135553][ T253] netlink_sendmsg+0x723/0xbe0 [ 8128.135553][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8128.135553][ T253] ___sys_sendmsg+0xee/0x170 [ 8128.135553][ T253] __sys_sendmsg+0xcd/0x170 [ 8128.135553][ T253] do_syscall_64+0xc6/0x1e0 [ 8128.135553][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8128.135553][ T253] [ 8138.378364][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8138.378886][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8138.378886][ T253] dst_init+0x84/0x4a0 [ 8138.378886][ T253] dst_alloc+0x97/0x150 [ 8138.378886][ T253] ip6_dst_alloc+0x23/0x90 [ 8138.378886][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8138.378886][ T253] ip6_pol_route+0x56f/0x840 [ 8138.378886][ T253] fib6_rule_lookup+0x334/0x630 [ 8138.378886][ T253] ip6_route_output_flags+0x259/0x480 [ 8138.378886][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8138.378886][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8138.378886][ T253] netlink_rcv_skb+0x130/0x360 [ 8138.378886][ T253] netlink_unicast+0x449/0x710 [ 8138.378886][ T253] netlink_sendmsg+0x723/0xbe0 [ 8138.378886][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8138.378886][ T253] ___sys_sendmsg+0xee/0x170 [ 8138.378886][ T253] __sys_sendmsg+0xcd/0x170 [ 8138.378886][ T253] do_syscall_64+0xc6/0x1e0 [ 8138.378886][ T253] [ 8138.381088][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8138.381088][ T253] netdev_get_by_index+0x5e/0x80 [ 8138.381088][ T253] fib6_nh_init+0x3d8/0x1580 [ 8138.381088][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8138.381088][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8138.381088][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8138.381088][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8138.381088][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8138.381088][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8138.381088][ T253] addrconf_dad_begin+0x310/0x670 [ 8138.381088][ T253] addrconf_dad_work+0x10b/0xab0 [ 8138.381088][ T253] process_one_work+0x84d/0x18a0 [ 8138.381088][ T253] worker_thread+0x587/0xd30 [ 8138.381088][ T253] kthread+0x28a/0x350 [ 8138.381088][ T253] ret_from_fork+0x31/0x70 [ 8138.381088][ T253] ret_from_fork_asm+0x1a/0x30 [ 8138.381088][ T253] [ 8138.383248][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8138.383248][ T253] netdev_get_by_index+0x5e/0x80 [ 8138.383248][ T253] fib6_nh_init+0x3d8/0x1580 [ 8138.383248][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8138.383248][ T253] ip6_route_add+0x1c/0x140 [ 8138.383248][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8138.383248][ T253] inet6_addr_add+0x4f8/0xa40 [ 8138.383248][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8138.383248][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8138.383248][ T253] netlink_rcv_skb+0x130/0x360 [ 8138.383248][ T253] netlink_unicast+0x449/0x710 [ 8138.383248][ T253] netlink_sendmsg+0x723/0xbe0 [ 8138.383248][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8138.383248][ T253] ___sys_sendmsg+0xee/0x170 [ 8138.383248][ T253] __sys_sendmsg+0xcd/0x170 [ 8138.383248][ T253] do_syscall_64+0xc6/0x1e0 [ 8138.383248][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8138.383248][ T253] [ 8138.385487][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8138.385487][ T253] netdev_get_by_index+0x5e/0x80 [ 8138.385487][ T253] fib6_nh_init+0x3d8/0x1580 [ 8138.385487][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8138.385487][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8138.385487][ T253] ipv6_add_addr+0x411/0x2000 [ 8138.385487][ T253] inet6_addr_add+0x30e/0xa40 [ 8138.385487][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8138.385487][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8138.385487][ T253] netlink_rcv_skb+0x130/0x360 [ 8138.385487][ T253] netlink_unicast+0x449/0x710 [ 8138.385487][ T253] netlink_sendmsg+0x723/0xbe0 [ 8138.385487][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8138.385487][ T253] ___sys_sendmsg+0xee/0x170 [ 8138.385487][ T253] __sys_sendmsg+0xcd/0x170 [ 8138.385487][ T253] do_syscall_64+0xc6/0x1e0 [ 8138.385487][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8138.385487][ T253] [ 8138.387745][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8138.387745][ T253] netdev_get_by_index+0x5e/0x80 [ 8138.387745][ T253] fib6_nh_init+0x3d8/0x1580 [ 8138.387745][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8138.387745][ T253] ip6_route_add+0x1c/0x140 [ 8138.387745][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8138.387745][ T253] addrconf_add_dev+0xe2/0x170 [ 8138.387745][ T253] inet6_addr_add+0x12f/0xa40 [ 8138.387745][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8138.387745][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8138.387745][ T253] netlink_rcv_skb+0x130/0x360 [ 8138.387745][ T253] netlink_unicast+0x449/0x710 [ 8138.387745][ T253] netlink_sendmsg+0x723/0xbe0 [ 8138.387745][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8138.387745][ T253] ___sys_sendmsg+0xee/0x170 [ 8138.387745][ T253] __sys_sendmsg+0xcd/0x170 [ 8138.387745][ T253] do_syscall_64+0xc6/0x1e0 [ 8138.387745][ T253] [ 8138.389941][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8138.389941][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8138.389941][ T253] ipv6_find_idev+0x102/0x170 [ 8138.389941][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8138.389941][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8138.389941][ T253] netlink_rcv_skb+0x130/0x360 [ 8138.389941][ T253] netlink_unicast+0x449/0x710 [ 8138.389941][ T253] netlink_sendmsg+0x723/0xbe0 [ 8138.389941][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8138.389941][ T253] ___sys_sendmsg+0xee/0x170 [ 8138.389941][ T253] __sys_sendmsg+0xcd/0x170 [ 8138.389941][ T253] do_syscall_64+0xc6/0x1e0 [ 8138.389941][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8138.389941][ T253] [ 8138.391658][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8138.391658][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8138.391658][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8138.391658][ T253] ipv6_find_idev+0x102/0x170 [ 8138.391658][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8138.391658][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8138.391658][ T253] netlink_rcv_skb+0x130/0x360 [ 8138.391658][ T253] netlink_unicast+0x449/0x710 [ 8138.391658][ T253] netlink_sendmsg+0x723/0xbe0 [ 8138.391658][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8138.391658][ T253] ___sys_sendmsg+0xee/0x170 [ 8138.391658][ T253] __sys_sendmsg+0xcd/0x170 [ 8138.391658][ T253] do_syscall_64+0xc6/0x1e0 [ 8138.391658][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8138.391658][ T253] [ 8148.634364][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8148.634875][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8148.634875][ T253] dst_init+0x84/0x4a0 [ 8148.634875][ T253] dst_alloc+0x97/0x150 [ 8148.634875][ T253] ip6_dst_alloc+0x23/0x90 [ 8148.634875][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8148.634875][ T253] ip6_pol_route+0x56f/0x840 [ 8148.634875][ T253] fib6_rule_lookup+0x334/0x630 [ 8148.634875][ T253] ip6_route_output_flags+0x259/0x480 [ 8148.634875][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8148.634875][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8148.634875][ T253] netlink_rcv_skb+0x130/0x360 [ 8148.634875][ T253] netlink_unicast+0x449/0x710 [ 8148.634875][ T253] netlink_sendmsg+0x723/0xbe0 [ 8148.634875][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8148.634875][ T253] ___sys_sendmsg+0xee/0x170 [ 8148.634875][ T253] __sys_sendmsg+0xcd/0x170 [ 8148.634875][ T253] do_syscall_64+0xc6/0x1e0 [ 8148.634875][ T253] [ 8148.637067][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8148.637067][ T253] netdev_get_by_index+0x5e/0x80 [ 8148.637067][ T253] fib6_nh_init+0x3d8/0x1580 [ 8148.637067][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8148.637067][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8148.637067][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8148.637067][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8148.637067][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8148.637067][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8148.637067][ T253] addrconf_dad_begin+0x310/0x670 [ 8148.637067][ T253] addrconf_dad_work+0x10b/0xab0 [ 8148.637067][ T253] process_one_work+0x84d/0x18a0 [ 8148.637067][ T253] worker_thread+0x587/0xd30 [ 8148.637067][ T253] kthread+0x28a/0x350 [ 8148.637067][ T253] ret_from_fork+0x31/0x70 [ 8148.637067][ T253] ret_from_fork_asm+0x1a/0x30 [ 8148.637067][ T253] [ 8148.639207][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8148.639207][ T253] netdev_get_by_index+0x5e/0x80 [ 8148.639207][ T253] fib6_nh_init+0x3d8/0x1580 [ 8148.639207][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8148.639207][ T253] ip6_route_add+0x1c/0x140 [ 8148.639207][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8148.639207][ T253] inet6_addr_add+0x4f8/0xa40 [ 8148.639207][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8148.639207][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8148.639207][ T253] netlink_rcv_skb+0x130/0x360 [ 8148.639207][ T253] netlink_unicast+0x449/0x710 [ 8148.639207][ T253] netlink_sendmsg+0x723/0xbe0 [ 8148.639207][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8148.639207][ T253] ___sys_sendmsg+0xee/0x170 [ 8148.639207][ T253] __sys_sendmsg+0xcd/0x170 [ 8148.639207][ T253] do_syscall_64+0xc6/0x1e0 [ 8148.639207][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8148.639207][ T253] [ 8148.641972][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8148.641972][ T253] netdev_get_by_index+0x5e/0x80 [ 8148.641972][ T253] fib6_nh_init+0x3d8/0x1580 [ 8148.641972][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8148.641972][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8148.641972][ T253] ipv6_add_addr+0x411/0x2000 [ 8148.641972][ T253] inet6_addr_add+0x30e/0xa40 [ 8148.641972][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8148.641972][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8148.641972][ T253] netlink_rcv_skb+0x130/0x360 [ 8148.641972][ T253] netlink_unicast+0x449/0x710 [ 8148.641972][ T253] netlink_sendmsg+0x723/0xbe0 [ 8148.641972][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8148.641972][ T253] ___sys_sendmsg+0xee/0x170 [ 8148.641972][ T253] __sys_sendmsg+0xcd/0x170 [ 8148.641972][ T253] do_syscall_64+0xc6/0x1e0 [ 8148.641972][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8148.641972][ T253] [ 8148.644221][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8148.644221][ T253] netdev_get_by_index+0x5e/0x80 [ 8148.644221][ T253] fib6_nh_init+0x3d8/0x1580 [ 8148.644221][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8148.644221][ T253] ip6_route_add+0x1c/0x140 [ 8148.644221][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8148.644221][ T253] addrconf_add_dev+0xe2/0x170 [ 8148.644221][ T253] inet6_addr_add+0x12f/0xa40 [ 8148.644221][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8148.644221][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8148.644221][ T253] netlink_rcv_skb+0x130/0x360 [ 8148.644221][ T253] netlink_unicast+0x449/0x710 [ 8148.644221][ T253] netlink_sendmsg+0x723/0xbe0 [ 8148.644221][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8148.644221][ T253] ___sys_sendmsg+0xee/0x170 [ 8148.644221][ T253] __sys_sendmsg+0xcd/0x170 [ 8148.644221][ T253] do_syscall_64+0xc6/0x1e0 [ 8148.644221][ T253] [ 8148.646433][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8148.646433][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8148.646433][ T253] ipv6_find_idev+0x102/0x170 [ 8148.646433][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8148.646433][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8148.646433][ T253] netlink_rcv_skb+0x130/0x360 [ 8148.646433][ T253] netlink_unicast+0x449/0x710 [ 8148.646433][ T253] netlink_sendmsg+0x723/0xbe0 [ 8148.646433][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8148.646433][ T253] ___sys_sendmsg+0xee/0x170 [ 8148.646433][ T253] __sys_sendmsg+0xcd/0x170 [ 8148.646433][ T253] do_syscall_64+0xc6/0x1e0 [ 8148.646433][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8148.646433][ T253] [ 8148.648153][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8148.648153][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8148.648153][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8148.648153][ T253] ipv6_find_idev+0x102/0x170 [ 8148.648153][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8148.648153][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8148.648153][ T253] netlink_rcv_skb+0x130/0x360 [ 8148.648153][ T253] netlink_unicast+0x449/0x710 [ 8148.648153][ T253] netlink_sendmsg+0x723/0xbe0 [ 8148.648153][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8148.648153][ T253] ___sys_sendmsg+0xee/0x170 [ 8148.648153][ T253] __sys_sendmsg+0xcd/0x170 [ 8148.648153][ T253] do_syscall_64+0xc6/0x1e0 [ 8148.648153][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8148.648153][ T253] [ 8158.890338][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8158.890747][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8158.890747][ T253] dst_init+0x84/0x4a0 [ 8158.890747][ T253] dst_alloc+0x97/0x150 [ 8158.890747][ T253] ip6_dst_alloc+0x23/0x90 [ 8158.890747][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8158.890747][ T253] ip6_pol_route+0x56f/0x840 [ 8158.890747][ T253] fib6_rule_lookup+0x334/0x630 [ 8158.890747][ T253] ip6_route_output_flags+0x259/0x480 [ 8158.890747][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8158.890747][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8158.890747][ T253] netlink_rcv_skb+0x130/0x360 [ 8158.890747][ T253] netlink_unicast+0x449/0x710 [ 8158.890747][ T253] netlink_sendmsg+0x723/0xbe0 [ 8158.890747][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8158.890747][ T253] ___sys_sendmsg+0xee/0x170 [ 8158.890747][ T253] __sys_sendmsg+0xcd/0x170 [ 8158.890747][ T253] do_syscall_64+0xc6/0x1e0 [ 8158.890747][ T253] [ 8158.892948][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8158.892948][ T253] netdev_get_by_index+0x5e/0x80 [ 8158.892948][ T253] fib6_nh_init+0x3d8/0x1580 [ 8158.892948][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8158.892948][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8158.892948][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8158.892948][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8158.892948][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8158.892948][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8158.892948][ T253] addrconf_dad_begin+0x310/0x670 [ 8158.892948][ T253] addrconf_dad_work+0x10b/0xab0 [ 8158.892948][ T253] process_one_work+0x84d/0x18a0 [ 8158.892948][ T253] worker_thread+0x587/0xd30 [ 8158.892948][ T253] kthread+0x28a/0x350 [ 8158.892948][ T253] ret_from_fork+0x31/0x70 [ 8158.892948][ T253] ret_from_fork_asm+0x1a/0x30 [ 8158.892948][ T253] [ 8158.895087][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8158.895087][ T253] netdev_get_by_index+0x5e/0x80 [ 8158.895087][ T253] fib6_nh_init+0x3d8/0x1580 [ 8158.895087][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8158.895087][ T253] ip6_route_add+0x1c/0x140 [ 8158.895087][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8158.895087][ T253] inet6_addr_add+0x4f8/0xa40 [ 8158.895087][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8158.895087][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8158.895087][ T253] netlink_rcv_skb+0x130/0x360 [ 8158.895087][ T253] netlink_unicast+0x449/0x710 [ 8158.895087][ T253] netlink_sendmsg+0x723/0xbe0 [ 8158.895087][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8158.895087][ T253] ___sys_sendmsg+0xee/0x170 [ 8158.895087][ T253] __sys_sendmsg+0xcd/0x170 [ 8158.895087][ T253] do_syscall_64+0xc6/0x1e0 [ 8158.895087][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8158.895087][ T253] [ 8158.897336][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8158.897336][ T253] netdev_get_by_index+0x5e/0x80 [ 8158.897336][ T253] fib6_nh_init+0x3d8/0x1580 [ 8158.897336][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8158.897336][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8158.897336][ T253] ipv6_add_addr+0x411/0x2000 [ 8158.897336][ T253] inet6_addr_add+0x30e/0xa40 [ 8158.897336][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8158.897336][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8158.897336][ T253] netlink_rcv_skb+0x130/0x360 [ 8158.897336][ T253] netlink_unicast+0x449/0x710 [ 8158.897336][ T253] netlink_sendmsg+0x723/0xbe0 [ 8158.897336][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8158.897336][ T253] ___sys_sendmsg+0xee/0x170 [ 8158.897336][ T253] __sys_sendmsg+0xcd/0x170 [ 8158.897336][ T253] do_syscall_64+0xc6/0x1e0 [ 8158.897336][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8158.897336][ T253] [ 8158.899570][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8158.899570][ T253] netdev_get_by_index+0x5e/0x80 [ 8158.899570][ T253] fib6_nh_init+0x3d8/0x1580 [ 8158.899570][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8158.899570][ T253] ip6_route_add+0x1c/0x140 [ 8158.899570][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8158.899570][ T253] addrconf_add_dev+0xe2/0x170 [ 8158.899570][ T253] inet6_addr_add+0x12f/0xa40 [ 8158.899570][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8158.899570][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8158.899570][ T253] netlink_rcv_skb+0x130/0x360 [ 8158.899570][ T253] netlink_unicast+0x449/0x710 [ 8158.899570][ T253] netlink_sendmsg+0x723/0xbe0 [ 8158.899570][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8158.899570][ T253] ___sys_sendmsg+0xee/0x170 [ 8158.899570][ T253] __sys_sendmsg+0xcd/0x170 [ 8158.899570][ T253] do_syscall_64+0xc6/0x1e0 [ 8158.899570][ T253] [ 8158.901770][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8158.901770][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8158.901770][ T253] ipv6_find_idev+0x102/0x170 [ 8158.901770][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8158.901770][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8158.901770][ T253] netlink_rcv_skb+0x130/0x360 [ 8158.901770][ T253] netlink_unicast+0x449/0x710 [ 8158.901770][ T253] netlink_sendmsg+0x723/0xbe0 [ 8158.901770][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8158.901770][ T253] ___sys_sendmsg+0xee/0x170 [ 8158.901770][ T253] __sys_sendmsg+0xcd/0x170 [ 8158.901770][ T253] do_syscall_64+0xc6/0x1e0 [ 8158.901770][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8158.901770][ T253] [ 8158.903496][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8158.903496][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8158.903496][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8158.903496][ T253] ipv6_find_idev+0x102/0x170 [ 8158.903496][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8158.903496][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8158.903496][ T253] netlink_rcv_skb+0x130/0x360 [ 8158.903496][ T253] netlink_unicast+0x449/0x710 [ 8158.903496][ T253] netlink_sendmsg+0x723/0xbe0 [ 8158.903496][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8158.903496][ T253] ___sys_sendmsg+0xee/0x170 [ 8158.903496][ T253] __sys_sendmsg+0xcd/0x170 [ 8158.903496][ T253] do_syscall_64+0xc6/0x1e0 [ 8158.903496][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8158.903496][ T253] [ 8169.106316][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8169.106843][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8169.106843][ T253] dst_init+0x84/0x4a0 [ 8169.106843][ T253] dst_alloc+0x97/0x150 [ 8169.106843][ T253] ip6_dst_alloc+0x23/0x90 [ 8169.106843][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8169.106843][ T253] ip6_pol_route+0x56f/0x840 [ 8169.106843][ T253] fib6_rule_lookup+0x334/0x630 [ 8169.106843][ T253] ip6_route_output_flags+0x259/0x480 [ 8169.106843][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8169.106843][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8169.106843][ T253] netlink_rcv_skb+0x130/0x360 [ 8169.106843][ T253] netlink_unicast+0x449/0x710 [ 8169.106843][ T253] netlink_sendmsg+0x723/0xbe0 [ 8169.106843][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8169.106843][ T253] ___sys_sendmsg+0xee/0x170 [ 8169.106843][ T253] __sys_sendmsg+0xcd/0x170 [ 8169.106843][ T253] do_syscall_64+0xc6/0x1e0 [ 8169.106843][ T253] [ 8169.109071][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8169.109071][ T253] netdev_get_by_index+0x5e/0x80 [ 8169.109071][ T253] fib6_nh_init+0x3d8/0x1580 [ 8169.109071][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8169.109071][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8169.109071][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8169.109071][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8169.109071][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8169.109071][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8169.109071][ T253] addrconf_dad_begin+0x310/0x670 [ 8169.109071][ T253] addrconf_dad_work+0x10b/0xab0 [ 8169.109071][ T253] process_one_work+0x84d/0x18a0 [ 8169.109071][ T253] worker_thread+0x587/0xd30 [ 8169.109071][ T253] kthread+0x28a/0x350 [ 8169.109071][ T253] ret_from_fork+0x31/0x70 [ 8169.109071][ T253] ret_from_fork_asm+0x1a/0x30 [ 8169.109071][ T253] [ 8169.111229][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8169.111229][ T253] netdev_get_by_index+0x5e/0x80 [ 8169.111229][ T253] fib6_nh_init+0x3d8/0x1580 [ 8169.111229][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8169.111229][ T253] ip6_route_add+0x1c/0x140 [ 8169.111229][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8169.111229][ T253] inet6_addr_add+0x4f8/0xa40 [ 8169.111229][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8169.111229][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8169.111229][ T253] netlink_rcv_skb+0x130/0x360 [ 8169.111229][ T253] netlink_unicast+0x449/0x710 [ 8169.111229][ T253] netlink_sendmsg+0x723/0xbe0 [ 8169.111229][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8169.111229][ T253] ___sys_sendmsg+0xee/0x170 [ 8169.111229][ T253] __sys_sendmsg+0xcd/0x170 [ 8169.111229][ T253] do_syscall_64+0xc6/0x1e0 [ 8169.111229][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8169.111229][ T253] [ 8169.113503][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8169.113503][ T253] netdev_get_by_index+0x5e/0x80 [ 8169.113503][ T253] fib6_nh_init+0x3d8/0x1580 [ 8169.113503][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8169.113503][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8169.113503][ T253] ipv6_add_addr+0x411/0x2000 [ 8169.113503][ T253] inet6_addr_add+0x30e/0xa40 [ 8169.113503][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8169.113503][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8169.113503][ T253] netlink_rcv_skb+0x130/0x360 [ 8169.113503][ T253] netlink_unicast+0x449/0x710 [ 8169.113503][ T253] netlink_sendmsg+0x723/0xbe0 [ 8169.113503][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8169.113503][ T253] ___sys_sendmsg+0xee/0x170 [ 8169.113503][ T253] __sys_sendmsg+0xcd/0x170 [ 8169.113503][ T253] do_syscall_64+0xc6/0x1e0 [ 8169.113503][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8169.113503][ T253] [ 8169.115758][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8169.115758][ T253] netdev_get_by_index+0x5e/0x80 [ 8169.115758][ T253] fib6_nh_init+0x3d8/0x1580 [ 8169.115758][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8169.115758][ T253] ip6_route_add+0x1c/0x140 [ 8169.115758][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8169.115758][ T253] addrconf_add_dev+0xe2/0x170 [ 8169.115758][ T253] inet6_addr_add+0x12f/0xa40 [ 8169.115758][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8169.115758][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8169.115758][ T253] netlink_rcv_skb+0x130/0x360 [ 8169.115758][ T253] netlink_unicast+0x449/0x710 [ 8169.115758][ T253] netlink_sendmsg+0x723/0xbe0 [ 8169.115758][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8169.115758][ T253] ___sys_sendmsg+0xee/0x170 [ 8169.115758][ T253] __sys_sendmsg+0xcd/0x170 [ 8169.115758][ T253] do_syscall_64+0xc6/0x1e0 [ 8169.115758][ T253] [ 8169.117973][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8169.117973][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8169.117973][ T253] ipv6_find_idev+0x102/0x170 [ 8169.117973][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8169.117973][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8169.117973][ T253] netlink_rcv_skb+0x130/0x360 [ 8169.117973][ T253] netlink_unicast+0x449/0x710 [ 8169.117973][ T253] netlink_sendmsg+0x723/0xbe0 [ 8169.117973][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8169.117973][ T253] ___sys_sendmsg+0xee/0x170 [ 8169.117973][ T253] __sys_sendmsg+0xcd/0x170 [ 8169.117973][ T253] do_syscall_64+0xc6/0x1e0 [ 8169.117973][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8169.117973][ T253] [ 8169.119708][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8169.119708][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8169.119708][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8169.119708][ T253] ipv6_find_idev+0x102/0x170 [ 8169.119708][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8169.119708][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8169.119708][ T253] netlink_rcv_skb+0x130/0x360 [ 8169.119708][ T253] netlink_unicast+0x449/0x710 [ 8169.119708][ T253] netlink_sendmsg+0x723/0xbe0 [ 8169.119708][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8169.119708][ T253] ___sys_sendmsg+0xee/0x170 [ 8169.119708][ T253] __sys_sendmsg+0xcd/0x170 [ 8169.119708][ T253] do_syscall_64+0xc6/0x1e0 [ 8169.119708][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8169.119708][ T253] [ 8179.354415][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8179.354907][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8179.354907][ T253] dst_init+0x84/0x4a0 [ 8179.354907][ T253] dst_alloc+0x97/0x150 [ 8179.354907][ T253] ip6_dst_alloc+0x23/0x90 [ 8179.354907][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8179.354907][ T253] ip6_pol_route+0x56f/0x840 [ 8179.354907][ T253] fib6_rule_lookup+0x334/0x630 [ 8179.354907][ T253] ip6_route_output_flags+0x259/0x480 [ 8179.354907][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8179.354907][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8179.354907][ T253] netlink_rcv_skb+0x130/0x360 [ 8179.354907][ T253] netlink_unicast+0x449/0x710 [ 8179.354907][ T253] netlink_sendmsg+0x723/0xbe0 [ 8179.354907][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8179.354907][ T253] ___sys_sendmsg+0xee/0x170 [ 8179.354907][ T253] __sys_sendmsg+0xcd/0x170 [ 8179.354907][ T253] do_syscall_64+0xc6/0x1e0 [ 8179.354907][ T253] [ 8179.357118][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8179.357118][ T253] netdev_get_by_index+0x5e/0x80 [ 8179.357118][ T253] fib6_nh_init+0x3d8/0x1580 [ 8179.357118][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8179.357118][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8179.357118][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8179.357118][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8179.357118][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8179.357118][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8179.357118][ T253] addrconf_dad_begin+0x310/0x670 [ 8179.357118][ T253] addrconf_dad_work+0x10b/0xab0 [ 8179.357118][ T253] process_one_work+0x84d/0x18a0 [ 8179.357118][ T253] worker_thread+0x587/0xd30 [ 8179.357118][ T253] kthread+0x28a/0x350 [ 8179.357118][ T253] ret_from_fork+0x31/0x70 [ 8179.357118][ T253] ret_from_fork_asm+0x1a/0x30 [ 8179.357118][ T253] [ 8179.359278][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8179.359278][ T253] netdev_get_by_index+0x5e/0x80 [ 8179.359278][ T253] fib6_nh_init+0x3d8/0x1580 [ 8179.359278][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8179.359278][ T253] ip6_route_add+0x1c/0x140 [ 8179.359278][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8179.359278][ T253] inet6_addr_add+0x4f8/0xa40 [ 8179.359278][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8179.359278][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8179.359278][ T253] netlink_rcv_skb+0x130/0x360 [ 8179.359278][ T253] netlink_unicast+0x449/0x710 [ 8179.359278][ T253] netlink_sendmsg+0x723/0xbe0 [ 8179.359278][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8179.359278][ T253] ___sys_sendmsg+0xee/0x170 [ 8179.359278][ T253] __sys_sendmsg+0xcd/0x170 [ 8179.359278][ T253] do_syscall_64+0xc6/0x1e0 [ 8179.359278][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8179.359278][ T253] [ 8179.361532][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8179.361532][ T253] netdev_get_by_index+0x5e/0x80 [ 8179.361532][ T253] fib6_nh_init+0x3d8/0x1580 [ 8179.361532][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8179.361532][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8179.361532][ T253] ipv6_add_addr+0x411/0x2000 [ 8179.361532][ T253] inet6_addr_add+0x30e/0xa40 [ 8179.361532][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8179.361532][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8179.361532][ T253] netlink_rcv_skb+0x130/0x360 [ 8179.361532][ T253] netlink_unicast+0x449/0x710 [ 8179.361532][ T253] netlink_sendmsg+0x723/0xbe0 [ 8179.361532][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8179.361532][ T253] ___sys_sendmsg+0xee/0x170 [ 8179.361532][ T253] __sys_sendmsg+0xcd/0x170 [ 8179.361532][ T253] do_syscall_64+0xc6/0x1e0 [ 8179.361532][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8179.361532][ T253] [ 8179.363813][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8179.363813][ T253] netdev_get_by_index+0x5e/0x80 [ 8179.363813][ T253] fib6_nh_init+0x3d8/0x1580 [ 8179.363813][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8179.363813][ T253] ip6_route_add+0x1c/0x140 [ 8179.363813][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8179.363813][ T253] addrconf_add_dev+0xe2/0x170 [ 8179.363813][ T253] inet6_addr_add+0x12f/0xa40 [ 8179.363813][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8179.363813][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8179.363813][ T253] netlink_rcv_skb+0x130/0x360 [ 8179.363813][ T253] netlink_unicast+0x449/0x710 [ 8179.363813][ T253] netlink_sendmsg+0x723/0xbe0 [ 8179.363813][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8179.363813][ T253] ___sys_sendmsg+0xee/0x170 [ 8179.363813][ T253] __sys_sendmsg+0xcd/0x170 [ 8179.363813][ T253] do_syscall_64+0xc6/0x1e0 [ 8179.363813][ T253] [ 8179.366026][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8179.366026][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8179.366026][ T253] ipv6_find_idev+0x102/0x170 [ 8179.366026][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8179.366026][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8179.366026][ T253] netlink_rcv_skb+0x130/0x360 [ 8179.366026][ T253] netlink_unicast+0x449/0x710 [ 8179.366026][ T253] netlink_sendmsg+0x723/0xbe0 [ 8179.366026][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8179.366026][ T253] ___sys_sendmsg+0xee/0x170 [ 8179.366026][ T253] __sys_sendmsg+0xcd/0x170 [ 8179.366026][ T253] do_syscall_64+0xc6/0x1e0 [ 8179.366026][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8179.366026][ T253] [ 8179.367759][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8179.367759][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8179.367759][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8179.367759][ T253] ipv6_find_idev+0x102/0x170 [ 8179.367759][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8179.367759][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8179.367759][ T253] netlink_rcv_skb+0x130/0x360 [ 8179.367759][ T253] netlink_unicast+0x449/0x710 [ 8179.367759][ T253] netlink_sendmsg+0x723/0xbe0 [ 8179.367759][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8179.367759][ T253] ___sys_sendmsg+0xee/0x170 [ 8179.367759][ T253] __sys_sendmsg+0xcd/0x170 [ 8179.367759][ T253] do_syscall_64+0xc6/0x1e0 [ 8179.367759][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8179.367759][ T253] [ 8189.618320][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8189.618820][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8189.618820][ T253] dst_init+0x84/0x4a0 [ 8189.618820][ T253] dst_alloc+0x97/0x150 [ 8189.618820][ T253] ip6_dst_alloc+0x23/0x90 [ 8189.618820][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8189.618820][ T253] ip6_pol_route+0x56f/0x840 [ 8189.618820][ T253] fib6_rule_lookup+0x334/0x630 [ 8189.618820][ T253] ip6_route_output_flags+0x259/0x480 [ 8189.618820][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8189.618820][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8189.618820][ T253] netlink_rcv_skb+0x130/0x360 [ 8189.618820][ T253] netlink_unicast+0x449/0x710 [ 8189.618820][ T253] netlink_sendmsg+0x723/0xbe0 [ 8189.618820][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8189.618820][ T253] ___sys_sendmsg+0xee/0x170 [ 8189.618820][ T253] __sys_sendmsg+0xcd/0x170 [ 8189.618820][ T253] do_syscall_64+0xc6/0x1e0 [ 8189.618820][ T253] [ 8189.621028][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8189.621028][ T253] netdev_get_by_index+0x5e/0x80 [ 8189.621028][ T253] fib6_nh_init+0x3d8/0x1580 [ 8189.621028][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8189.621028][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8189.621028][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8189.621028][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8189.621028][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8189.621028][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8189.621028][ T253] addrconf_dad_begin+0x310/0x670 [ 8189.621028][ T253] addrconf_dad_work+0x10b/0xab0 [ 8189.621028][ T253] process_one_work+0x84d/0x18a0 [ 8189.621028][ T253] worker_thread+0x587/0xd30 [ 8189.621028][ T253] kthread+0x28a/0x350 [ 8189.621028][ T253] ret_from_fork+0x31/0x70 [ 8189.621028][ T253] ret_from_fork_asm+0x1a/0x30 [ 8189.621028][ T253] [ 8189.623202][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8189.623202][ T253] netdev_get_by_index+0x5e/0x80 [ 8189.623202][ T253] fib6_nh_init+0x3d8/0x1580 [ 8189.623202][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8189.623202][ T253] ip6_route_add+0x1c/0x140 [ 8189.623202][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8189.623202][ T253] inet6_addr_add+0x4f8/0xa40 [ 8189.623202][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8189.623202][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8189.623202][ T253] netlink_rcv_skb+0x130/0x360 [ 8189.623202][ T253] netlink_unicast+0x449/0x710 [ 8189.623202][ T253] netlink_sendmsg+0x723/0xbe0 [ 8189.623202][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8189.623202][ T253] ___sys_sendmsg+0xee/0x170 [ 8189.623202][ T253] __sys_sendmsg+0xcd/0x170 [ 8189.623202][ T253] do_syscall_64+0xc6/0x1e0 [ 8189.623202][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8189.623202][ T253] [ 8189.625457][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8189.625457][ T253] netdev_get_by_index+0x5e/0x80 [ 8189.625457][ T253] fib6_nh_init+0x3d8/0x1580 [ 8189.625457][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8189.625457][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8189.625457][ T253] ipv6_add_addr+0x411/0x2000 [ 8189.625457][ T253] inet6_addr_add+0x30e/0xa40 [ 8189.625457][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8189.625457][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8189.625457][ T253] netlink_rcv_skb+0x130/0x360 [ 8189.625457][ T253] netlink_unicast+0x449/0x710 [ 8189.625457][ T253] netlink_sendmsg+0x723/0xbe0 [ 8189.625457][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8189.625457][ T253] ___sys_sendmsg+0xee/0x170 [ 8189.625457][ T253] __sys_sendmsg+0xcd/0x170 [ 8189.625457][ T253] do_syscall_64+0xc6/0x1e0 [ 8189.625457][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8189.625457][ T253] [ 8189.627767][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8189.627767][ T253] netdev_get_by_index+0x5e/0x80 [ 8189.627767][ T253] fib6_nh_init+0x3d8/0x1580 [ 8189.627767][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8189.627767][ T253] ip6_route_add+0x1c/0x140 [ 8189.627767][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8189.627767][ T253] addrconf_add_dev+0xe2/0x170 [ 8189.627767][ T253] inet6_addr_add+0x12f/0xa40 [ 8189.627767][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8189.627767][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8189.627767][ T253] netlink_rcv_skb+0x130/0x360 [ 8189.627767][ T253] netlink_unicast+0x449/0x710 [ 8189.627767][ T253] netlink_sendmsg+0x723/0xbe0 [ 8189.627767][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8189.627767][ T253] ___sys_sendmsg+0xee/0x170 [ 8189.627767][ T253] __sys_sendmsg+0xcd/0x170 [ 8189.627767][ T253] do_syscall_64+0xc6/0x1e0 [ 8189.627767][ T253] [ 8189.629985][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8189.629985][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8189.629985][ T253] ipv6_find_idev+0x102/0x170 [ 8189.629985][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8189.629985][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8189.629985][ T253] netlink_rcv_skb+0x130/0x360 [ 8189.629985][ T253] netlink_unicast+0x449/0x710 [ 8189.629985][ T253] netlink_sendmsg+0x723/0xbe0 [ 8189.629985][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8189.629985][ T253] ___sys_sendmsg+0xee/0x170 [ 8189.629985][ T253] __sys_sendmsg+0xcd/0x170 [ 8189.629985][ T253] do_syscall_64+0xc6/0x1e0 [ 8189.629985][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8189.629985][ T253] [ 8189.631717][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8189.631717][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8189.631717][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8189.631717][ T253] ipv6_find_idev+0x102/0x170 [ 8189.631717][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8189.631717][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8189.631717][ T253] netlink_rcv_skb+0x130/0x360 [ 8189.631717][ T253] netlink_unicast+0x449/0x710 [ 8189.631717][ T253] netlink_sendmsg+0x723/0xbe0 [ 8189.631717][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8189.631717][ T253] ___sys_sendmsg+0xee/0x170 [ 8189.631717][ T253] __sys_sendmsg+0xcd/0x170 [ 8189.631717][ T253] do_syscall_64+0xc6/0x1e0 [ 8189.631717][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8189.631717][ T253] [ 8199.850304][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8199.850800][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8199.850800][ T253] dst_init+0x84/0x4a0 [ 8199.850800][ T253] dst_alloc+0x97/0x150 [ 8199.850800][ T253] ip6_dst_alloc+0x23/0x90 [ 8199.850800][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8199.850800][ T253] ip6_pol_route+0x56f/0x840 [ 8199.850800][ T253] fib6_rule_lookup+0x334/0x630 [ 8199.850800][ T253] ip6_route_output_flags+0x259/0x480 [ 8199.850800][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8199.850800][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8199.850800][ T253] netlink_rcv_skb+0x130/0x360 [ 8199.850800][ T253] netlink_unicast+0x449/0x710 [ 8199.850800][ T253] netlink_sendmsg+0x723/0xbe0 [ 8199.850800][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8199.850800][ T253] ___sys_sendmsg+0xee/0x170 [ 8199.850800][ T253] __sys_sendmsg+0xcd/0x170 [ 8199.850800][ T253] do_syscall_64+0xc6/0x1e0 [ 8199.850800][ T253] [ 8199.853036][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8199.853036][ T253] netdev_get_by_index+0x5e/0x80 [ 8199.853036][ T253] fib6_nh_init+0x3d8/0x1580 [ 8199.853036][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8199.853036][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8199.853036][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8199.853036][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8199.853036][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8199.853036][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8199.853036][ T253] addrconf_dad_begin+0x310/0x670 [ 8199.853036][ T253] addrconf_dad_work+0x10b/0xab0 [ 8199.853036][ T253] process_one_work+0x84d/0x18a0 [ 8199.853036][ T253] worker_thread+0x587/0xd30 [ 8199.853036][ T253] kthread+0x28a/0x350 [ 8199.853036][ T253] ret_from_fork+0x31/0x70 [ 8199.853036][ T253] ret_from_fork_asm+0x1a/0x30 [ 8199.853036][ T253] [ 8199.855196][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8199.855196][ T253] netdev_get_by_index+0x5e/0x80 [ 8199.855196][ T253] fib6_nh_init+0x3d8/0x1580 [ 8199.855196][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8199.855196][ T253] ip6_route_add+0x1c/0x140 [ 8199.855196][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8199.855196][ T253] inet6_addr_add+0x4f8/0xa40 [ 8199.855196][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8199.855196][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8199.855196][ T253] netlink_rcv_skb+0x130/0x360 [ 8199.855196][ T253] netlink_unicast+0x449/0x710 [ 8199.855196][ T253] netlink_sendmsg+0x723/0xbe0 [ 8199.855196][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8199.855196][ T253] ___sys_sendmsg+0xee/0x170 [ 8199.855196][ T253] __sys_sendmsg+0xcd/0x170 [ 8199.855196][ T253] do_syscall_64+0xc6/0x1e0 [ 8199.855196][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8199.855196][ T253] [ 8199.857448][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8199.857448][ T253] netdev_get_by_index+0x5e/0x80 [ 8199.857448][ T253] fib6_nh_init+0x3d8/0x1580 [ 8199.857448][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8199.857448][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8199.857448][ T253] ipv6_add_addr+0x411/0x2000 [ 8199.857448][ T253] inet6_addr_add+0x30e/0xa40 [ 8199.857448][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8199.857448][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8199.857448][ T253] netlink_rcv_skb+0x130/0x360 [ 8199.857448][ T253] netlink_unicast+0x449/0x710 [ 8199.857448][ T253] netlink_sendmsg+0x723/0xbe0 [ 8199.857448][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8199.857448][ T253] ___sys_sendmsg+0xee/0x170 [ 8199.857448][ T253] __sys_sendmsg+0xcd/0x170 [ 8199.857448][ T253] do_syscall_64+0xc6/0x1e0 [ 8199.857448][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8199.857448][ T253] [ 8199.859701][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8199.859701][ T253] netdev_get_by_index+0x5e/0x80 [ 8199.859701][ T253] fib6_nh_init+0x3d8/0x1580 [ 8199.859701][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8199.859701][ T253] ip6_route_add+0x1c/0x140 [ 8199.859701][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8199.859701][ T253] addrconf_add_dev+0xe2/0x170 [ 8199.859701][ T253] inet6_addr_add+0x12f/0xa40 [ 8199.859701][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8199.859701][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8199.859701][ T253] netlink_rcv_skb+0x130/0x360 [ 8199.859701][ T253] netlink_unicast+0x449/0x710 [ 8199.859701][ T253] netlink_sendmsg+0x723/0xbe0 [ 8199.859701][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8199.859701][ T253] ___sys_sendmsg+0xee/0x170 [ 8199.859701][ T253] __sys_sendmsg+0xcd/0x170 [ 8199.859701][ T253] do_syscall_64+0xc6/0x1e0 [ 8199.859701][ T253] [ 8199.861930][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8199.861930][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8199.861930][ T253] ipv6_find_idev+0x102/0x170 [ 8199.861930][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8199.861930][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8199.861930][ T253] netlink_rcv_skb+0x130/0x360 [ 8199.861930][ T253] netlink_unicast+0x449/0x710 [ 8199.861930][ T253] netlink_sendmsg+0x723/0xbe0 [ 8199.861930][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8199.861930][ T253] ___sys_sendmsg+0xee/0x170 [ 8199.861930][ T253] __sys_sendmsg+0xcd/0x170 [ 8199.861930][ T253] do_syscall_64+0xc6/0x1e0 [ 8199.861930][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8199.861930][ T253] [ 8199.863661][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8199.863661][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8199.863661][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8199.863661][ T253] ipv6_find_idev+0x102/0x170 [ 8199.863661][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8199.863661][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8199.863661][ T253] netlink_rcv_skb+0x130/0x360 [ 8199.863661][ T253] netlink_unicast+0x449/0x710 [ 8199.863661][ T253] netlink_sendmsg+0x723/0xbe0 [ 8199.863661][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8199.863661][ T253] ___sys_sendmsg+0xee/0x170 [ 8199.863661][ T253] __sys_sendmsg+0xcd/0x170 [ 8199.863661][ T253] do_syscall_64+0xc6/0x1e0 [ 8199.863661][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8199.863661][ T253] [ 8210.106347][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8210.106835][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8210.106835][ T253] dst_init+0x84/0x4a0 [ 8210.106835][ T253] dst_alloc+0x97/0x150 [ 8210.106835][ T253] ip6_dst_alloc+0x23/0x90 [ 8210.106835][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8210.106835][ T253] ip6_pol_route+0x56f/0x840 [ 8210.106835][ T253] fib6_rule_lookup+0x334/0x630 [ 8210.106835][ T253] ip6_route_output_flags+0x259/0x480 [ 8210.106835][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8210.106835][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8210.106835][ T253] netlink_rcv_skb+0x130/0x360 [ 8210.106835][ T253] netlink_unicast+0x449/0x710 [ 8210.106835][ T253] netlink_sendmsg+0x723/0xbe0 [ 8210.106835][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8210.106835][ T253] ___sys_sendmsg+0xee/0x170 [ 8210.106835][ T253] __sys_sendmsg+0xcd/0x170 [ 8210.106835][ T253] do_syscall_64+0xc6/0x1e0 [ 8210.106835][ T253] [ 8210.109046][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8210.109046][ T253] netdev_get_by_index+0x5e/0x80 [ 8210.109046][ T253] fib6_nh_init+0x3d8/0x1580 [ 8210.109046][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8210.109046][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8210.109046][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8210.109046][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8210.109046][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8210.109046][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8210.109046][ T253] addrconf_dad_begin+0x310/0x670 [ 8210.109046][ T253] addrconf_dad_work+0x10b/0xab0 [ 8210.109046][ T253] process_one_work+0x84d/0x18a0 [ 8210.109046][ T253] worker_thread+0x587/0xd30 [ 8210.109046][ T253] kthread+0x28a/0x350 [ 8210.109046][ T253] ret_from_fork+0x31/0x70 [ 8210.109046][ T253] ret_from_fork_asm+0x1a/0x30 [ 8210.109046][ T253] [ 8210.111201][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8210.111201][ T253] netdev_get_by_index+0x5e/0x80 [ 8210.111201][ T253] fib6_nh_init+0x3d8/0x1580 [ 8210.111201][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8210.111201][ T253] ip6_route_add+0x1c/0x140 [ 8210.111201][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8210.111201][ T253] inet6_addr_add+0x4f8/0xa40 [ 8210.111201][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8210.111201][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8210.111201][ T253] netlink_rcv_skb+0x130/0x360 [ 8210.111201][ T253] netlink_unicast+0x449/0x710 [ 8210.111201][ T253] netlink_sendmsg+0x723/0xbe0 [ 8210.111201][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8210.111201][ T253] ___sys_sendmsg+0xee/0x170 [ 8210.111201][ T253] __sys_sendmsg+0xcd/0x170 [ 8210.111201][ T253] do_syscall_64+0xc6/0x1e0 [ 8210.111201][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8210.111201][ T253] [ 8210.113460][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8210.113460][ T253] netdev_get_by_index+0x5e/0x80 [ 8210.113460][ T253] fib6_nh_init+0x3d8/0x1580 [ 8210.113460][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8210.113460][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8210.113460][ T253] ipv6_add_addr+0x411/0x2000 [ 8210.113460][ T253] inet6_addr_add+0x30e/0xa40 [ 8210.113460][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8210.113460][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8210.113460][ T253] netlink_rcv_skb+0x130/0x360 [ 8210.113460][ T253] netlink_unicast+0x449/0x710 [ 8210.113460][ T253] netlink_sendmsg+0x723/0xbe0 [ 8210.113460][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8210.113460][ T253] ___sys_sendmsg+0xee/0x170 [ 8210.113460][ T253] __sys_sendmsg+0xcd/0x170 [ 8210.113460][ T253] do_syscall_64+0xc6/0x1e0 [ 8210.113460][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8210.113460][ T253] [ 8210.115708][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8210.115708][ T253] netdev_get_by_index+0x5e/0x80 [ 8210.115708][ T253] fib6_nh_init+0x3d8/0x1580 [ 8210.115708][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8210.115708][ T253] ip6_route_add+0x1c/0x140 [ 8210.115708][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8210.115708][ T253] addrconf_add_dev+0xe2/0x170 [ 8210.115708][ T253] inet6_addr_add+0x12f/0xa40 [ 8210.115708][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8210.115708][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8210.115708][ T253] netlink_rcv_skb+0x130/0x360 [ 8210.115708][ T253] netlink_unicast+0x449/0x710 [ 8210.115708][ T253] netlink_sendmsg+0x723/0xbe0 [ 8210.115708][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8210.115708][ T253] ___sys_sendmsg+0xee/0x170 [ 8210.115708][ T253] __sys_sendmsg+0xcd/0x170 [ 8210.115708][ T253] do_syscall_64+0xc6/0x1e0 [ 8210.115708][ T253] [ 8210.117922][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8210.117922][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8210.117922][ T253] ipv6_find_idev+0x102/0x170 [ 8210.117922][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8210.117922][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8210.117922][ T253] netlink_rcv_skb+0x130/0x360 [ 8210.117922][ T253] netlink_unicast+0x449/0x710 [ 8210.117922][ T253] netlink_sendmsg+0x723/0xbe0 [ 8210.117922][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8210.117922][ T253] ___sys_sendmsg+0xee/0x170 [ 8210.117922][ T253] __sys_sendmsg+0xcd/0x170 [ 8210.117922][ T253] do_syscall_64+0xc6/0x1e0 [ 8210.117922][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8210.117922][ T253] [ 8210.119658][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8210.119658][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8210.119658][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8210.119658][ T253] ipv6_find_idev+0x102/0x170 [ 8210.119658][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8210.119658][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8210.119658][ T253] netlink_rcv_skb+0x130/0x360 [ 8210.119658][ T253] netlink_unicast+0x449/0x710 [ 8210.119658][ T253] netlink_sendmsg+0x723/0xbe0 [ 8210.119658][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8210.119658][ T253] ___sys_sendmsg+0xee/0x170 [ 8210.119658][ T253] __sys_sendmsg+0xcd/0x170 [ 8210.119658][ T253] do_syscall_64+0xc6/0x1e0 [ 8210.119658][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8210.119658][ T253] [ 8220.362333][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8220.362810][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8220.362810][ T253] dst_init+0x84/0x4a0 [ 8220.362810][ T253] dst_alloc+0x97/0x150 [ 8220.362810][ T253] ip6_dst_alloc+0x23/0x90 [ 8220.362810][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8220.362810][ T253] ip6_pol_route+0x56f/0x840 [ 8220.362810][ T253] fib6_rule_lookup+0x334/0x630 [ 8220.362810][ T253] ip6_route_output_flags+0x259/0x480 [ 8220.362810][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8220.362810][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8220.362810][ T253] netlink_rcv_skb+0x130/0x360 [ 8220.362810][ T253] netlink_unicast+0x449/0x710 [ 8220.362810][ T253] netlink_sendmsg+0x723/0xbe0 [ 8220.362810][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8220.362810][ T253] ___sys_sendmsg+0xee/0x170 [ 8220.362810][ T253] __sys_sendmsg+0xcd/0x170 [ 8220.362810][ T253] do_syscall_64+0xc6/0x1e0 [ 8220.362810][ T253] [ 8220.364996][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8220.364996][ T253] netdev_get_by_index+0x5e/0x80 [ 8220.364996][ T253] fib6_nh_init+0x3d8/0x1580 [ 8220.364996][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8220.364996][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8220.364996][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8220.364996][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8220.364996][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8220.364996][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8220.364996][ T253] addrconf_dad_begin+0x310/0x670 [ 8220.364996][ T253] addrconf_dad_work+0x10b/0xab0 [ 8220.364996][ T253] process_one_work+0x84d/0x18a0 [ 8220.364996][ T253] worker_thread+0x587/0xd30 [ 8220.364996][ T253] kthread+0x28a/0x350 [ 8220.364996][ T253] ret_from_fork+0x31/0x70 [ 8220.364996][ T253] ret_from_fork_asm+0x1a/0x30 [ 8220.364996][ T253] [ 8220.367146][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8220.367146][ T253] netdev_get_by_index+0x5e/0x80 [ 8220.367146][ T253] fib6_nh_init+0x3d8/0x1580 [ 8220.367146][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8220.367146][ T253] ip6_route_add+0x1c/0x140 [ 8220.367146][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8220.367146][ T253] inet6_addr_add+0x4f8/0xa40 [ 8220.367146][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8220.367146][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8220.367146][ T253] netlink_rcv_skb+0x130/0x360 [ 8220.367146][ T253] netlink_unicast+0x449/0x710 [ 8220.367146][ T253] netlink_sendmsg+0x723/0xbe0 [ 8220.367146][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8220.367146][ T253] ___sys_sendmsg+0xee/0x170 [ 8220.367146][ T253] __sys_sendmsg+0xcd/0x170 [ 8220.367146][ T253] do_syscall_64+0xc6/0x1e0 [ 8220.367146][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8220.367146][ T253] [ 8220.369522][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8220.369522][ T253] netdev_get_by_index+0x5e/0x80 [ 8220.369522][ T253] fib6_nh_init+0x3d8/0x1580 [ 8220.369522][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8220.369522][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8220.369522][ T253] ipv6_add_addr+0x411/0x2000 [ 8220.369522][ T253] inet6_addr_add+0x30e/0xa40 [ 8220.369522][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8220.369522][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8220.369522][ T253] netlink_rcv_skb+0x130/0x360 [ 8220.369522][ T253] netlink_unicast+0x449/0x710 [ 8220.369522][ T253] netlink_sendmsg+0x723/0xbe0 [ 8220.369522][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8220.369522][ T253] ___sys_sendmsg+0xee/0x170 [ 8220.369522][ T253] __sys_sendmsg+0xcd/0x170 [ 8220.369522][ T253] do_syscall_64+0xc6/0x1e0 [ 8220.369522][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8220.369522][ T253] [ 8220.371768][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8220.371768][ T253] netdev_get_by_index+0x5e/0x80 [ 8220.371768][ T253] fib6_nh_init+0x3d8/0x1580 [ 8220.371768][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8220.371768][ T253] ip6_route_add+0x1c/0x140 [ 8220.371768][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8220.371768][ T253] addrconf_add_dev+0xe2/0x170 [ 8220.371768][ T253] inet6_addr_add+0x12f/0xa40 [ 8220.371768][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8220.371768][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8220.371768][ T253] netlink_rcv_skb+0x130/0x360 [ 8220.371768][ T253] netlink_unicast+0x449/0x710 [ 8220.371768][ T253] netlink_sendmsg+0x723/0xbe0 [ 8220.371768][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8220.371768][ T253] ___sys_sendmsg+0xee/0x170 [ 8220.371768][ T253] __sys_sendmsg+0xcd/0x170 [ 8220.371768][ T253] do_syscall_64+0xc6/0x1e0 [ 8220.371768][ T253] [ 8220.373958][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8220.373958][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8220.373958][ T253] ipv6_find_idev+0x102/0x170 [ 8220.373958][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8220.373958][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8220.373958][ T253] netlink_rcv_skb+0x130/0x360 [ 8220.373958][ T253] netlink_unicast+0x449/0x710 [ 8220.373958][ T253] netlink_sendmsg+0x723/0xbe0 [ 8220.373958][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8220.373958][ T253] ___sys_sendmsg+0xee/0x170 [ 8220.373958][ T253] __sys_sendmsg+0xcd/0x170 [ 8220.373958][ T253] do_syscall_64+0xc6/0x1e0 [ 8220.373958][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8220.373958][ T253] [ 8220.375675][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8220.375675][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8220.375675][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8220.375675][ T253] ipv6_find_idev+0x102/0x170 [ 8220.375675][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8220.375675][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8220.375675][ T253] netlink_rcv_skb+0x130/0x360 [ 8220.375675][ T253] netlink_unicast+0x449/0x710 [ 8220.375675][ T253] netlink_sendmsg+0x723/0xbe0 [ 8220.375675][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8220.375675][ T253] ___sys_sendmsg+0xee/0x170 [ 8220.375675][ T253] __sys_sendmsg+0xcd/0x170 [ 8220.375675][ T253] do_syscall_64+0xc6/0x1e0 [ 8220.375675][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8220.375675][ T253] [ 8230.458304][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8230.458782][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8230.458782][ T253] dst_init+0x84/0x4a0 [ 8230.458782][ T253] dst_alloc+0x97/0x150 [ 8230.458782][ T253] ip6_dst_alloc+0x23/0x90 [ 8230.458782][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8230.458782][ T253] ip6_pol_route+0x56f/0x840 [ 8230.458782][ T253] fib6_rule_lookup+0x334/0x630 [ 8230.458782][ T253] ip6_route_output_flags+0x259/0x480 [ 8230.458782][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8230.458782][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8230.458782][ T253] netlink_rcv_skb+0x130/0x360 [ 8230.458782][ T253] netlink_unicast+0x449/0x710 [ 8230.458782][ T253] netlink_sendmsg+0x723/0xbe0 [ 8230.458782][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8230.458782][ T253] ___sys_sendmsg+0xee/0x170 [ 8230.458782][ T253] __sys_sendmsg+0xcd/0x170 [ 8230.458782][ T253] do_syscall_64+0xc6/0x1e0 [ 8230.458782][ T253] [ 8230.460962][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8230.460962][ T253] netdev_get_by_index+0x5e/0x80 [ 8230.460962][ T253] fib6_nh_init+0x3d8/0x1580 [ 8230.460962][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8230.460962][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8230.460962][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8230.460962][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8230.460962][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8230.460962][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8230.460962][ T253] addrconf_dad_begin+0x310/0x670 [ 8230.460962][ T253] addrconf_dad_work+0x10b/0xab0 [ 8230.460962][ T253] process_one_work+0x84d/0x18a0 [ 8230.460962][ T253] worker_thread+0x587/0xd30 [ 8230.460962][ T253] kthread+0x28a/0x350 [ 8230.460962][ T253] ret_from_fork+0x31/0x70 [ 8230.460962][ T253] ret_from_fork_asm+0x1a/0x30 [ 8230.460962][ T253] [ 8230.463105][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8230.463105][ T253] netdev_get_by_index+0x5e/0x80 [ 8230.463105][ T253] fib6_nh_init+0x3d8/0x1580 [ 8230.463105][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8230.463105][ T253] ip6_route_add+0x1c/0x140 [ 8230.463105][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8230.463105][ T253] inet6_addr_add+0x4f8/0xa40 [ 8230.463105][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8230.463105][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8230.463105][ T253] netlink_rcv_skb+0x130/0x360 [ 8230.463105][ T253] netlink_unicast+0x449/0x710 [ 8230.463105][ T253] netlink_sendmsg+0x723/0xbe0 [ 8230.463105][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8230.463105][ T253] ___sys_sendmsg+0xee/0x170 [ 8230.463105][ T253] __sys_sendmsg+0xcd/0x170 [ 8230.463105][ T253] do_syscall_64+0xc6/0x1e0 [ 8230.463105][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8230.463105][ T253] [ 8230.465323][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8230.465323][ T253] netdev_get_by_index+0x5e/0x80 [ 8230.465323][ T253] fib6_nh_init+0x3d8/0x1580 [ 8230.465323][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8230.465323][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8230.465323][ T253] ipv6_add_addr+0x411/0x2000 [ 8230.465323][ T253] inet6_addr_add+0x30e/0xa40 [ 8230.465323][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8230.465323][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8230.465323][ T253] netlink_rcv_skb+0x130/0x360 [ 8230.465323][ T253] netlink_unicast+0x449/0x710 [ 8230.465323][ T253] netlink_sendmsg+0x723/0xbe0 [ 8230.465323][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8230.465323][ T253] ___sys_sendmsg+0xee/0x170 [ 8230.465323][ T253] __sys_sendmsg+0xcd/0x170 [ 8230.465323][ T253] do_syscall_64+0xc6/0x1e0 [ 8230.465323][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8230.465323][ T253] [ 8230.467549][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8230.467549][ T253] netdev_get_by_index+0x5e/0x80 [ 8230.467549][ T253] fib6_nh_init+0x3d8/0x1580 [ 8230.467549][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8230.467549][ T253] ip6_route_add+0x1c/0x140 [ 8230.467549][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8230.467549][ T253] addrconf_add_dev+0xe2/0x170 [ 8230.467549][ T253] inet6_addr_add+0x12f/0xa40 [ 8230.467549][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8230.467549][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8230.467549][ T253] netlink_rcv_skb+0x130/0x360 [ 8230.467549][ T253] netlink_unicast+0x449/0x710 [ 8230.467549][ T253] netlink_sendmsg+0x723/0xbe0 [ 8230.467549][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8230.467549][ T253] ___sys_sendmsg+0xee/0x170 [ 8230.467549][ T253] __sys_sendmsg+0xcd/0x170 [ 8230.467549][ T253] do_syscall_64+0xc6/0x1e0 [ 8230.467549][ T253] [ 8230.469749][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8230.469749][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8230.469749][ T253] ipv6_find_idev+0x102/0x170 [ 8230.469749][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8230.469749][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8230.469749][ T253] netlink_rcv_skb+0x130/0x360 [ 8230.469749][ T253] netlink_unicast+0x449/0x710 [ 8230.469749][ T253] netlink_sendmsg+0x723/0xbe0 [ 8230.469749][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8230.469749][ T253] ___sys_sendmsg+0xee/0x170 [ 8230.469749][ T253] __sys_sendmsg+0xcd/0x170 [ 8230.469749][ T253] do_syscall_64+0xc6/0x1e0 [ 8230.469749][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8230.469749][ T253] [ 8230.471461][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8230.471461][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8230.471461][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8230.471461][ T253] ipv6_find_idev+0x102/0x170 [ 8230.471461][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8230.471461][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8230.471461][ T253] netlink_rcv_skb+0x130/0x360 [ 8230.471461][ T253] netlink_unicast+0x449/0x710 [ 8230.471461][ T253] netlink_sendmsg+0x723/0xbe0 [ 8230.471461][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8230.471461][ T253] ___sys_sendmsg+0xee/0x170 [ 8230.471461][ T253] __sys_sendmsg+0xcd/0x170 [ 8230.471461][ T253] do_syscall_64+0xc6/0x1e0 [ 8230.471461][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8230.471461][ T253] [ 8240.714327][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8240.714801][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8240.714801][ T253] dst_init+0x84/0x4a0 [ 8240.714801][ T253] dst_alloc+0x97/0x150 [ 8240.714801][ T253] ip6_dst_alloc+0x23/0x90 [ 8240.714801][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8240.714801][ T253] ip6_pol_route+0x56f/0x840 [ 8240.714801][ T253] fib6_rule_lookup+0x334/0x630 [ 8240.714801][ T253] ip6_route_output_flags+0x259/0x480 [ 8240.714801][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8240.714801][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8240.714801][ T253] netlink_rcv_skb+0x130/0x360 [ 8240.714801][ T253] netlink_unicast+0x449/0x710 [ 8240.714801][ T253] netlink_sendmsg+0x723/0xbe0 [ 8240.714801][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8240.714801][ T253] ___sys_sendmsg+0xee/0x170 [ 8240.714801][ T253] __sys_sendmsg+0xcd/0x170 [ 8240.714801][ T253] do_syscall_64+0xc6/0x1e0 [ 8240.714801][ T253] [ 8240.716997][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8240.716997][ T253] netdev_get_by_index+0x5e/0x80 [ 8240.716997][ T253] fib6_nh_init+0x3d8/0x1580 [ 8240.716997][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8240.716997][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8240.716997][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8240.716997][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8240.716997][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8240.716997][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8240.716997][ T253] addrconf_dad_begin+0x310/0x670 [ 8240.716997][ T253] addrconf_dad_work+0x10b/0xab0 [ 8240.716997][ T253] process_one_work+0x84d/0x18a0 [ 8240.716997][ T253] worker_thread+0x587/0xd30 [ 8240.716997][ T253] kthread+0x28a/0x350 [ 8240.716997][ T253] ret_from_fork+0x31/0x70 [ 8240.716997][ T253] ret_from_fork_asm+0x1a/0x30 [ 8240.716997][ T253] [ 8240.719134][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8240.719134][ T253] netdev_get_by_index+0x5e/0x80 [ 8240.719134][ T253] fib6_nh_init+0x3d8/0x1580 [ 8240.719134][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8240.719134][ T253] ip6_route_add+0x1c/0x140 [ 8240.719134][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8240.719134][ T253] inet6_addr_add+0x4f8/0xa40 [ 8240.719134][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8240.719134][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8240.719134][ T253] netlink_rcv_skb+0x130/0x360 [ 8240.719134][ T253] netlink_unicast+0x449/0x710 [ 8240.719134][ T253] netlink_sendmsg+0x723/0xbe0 [ 8240.719134][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8240.719134][ T253] ___sys_sendmsg+0xee/0x170 [ 8240.719134][ T253] __sys_sendmsg+0xcd/0x170 [ 8240.719134][ T253] do_syscall_64+0xc6/0x1e0 [ 8240.719134][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8240.719134][ T253] [ 8240.721372][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8240.721372][ T253] netdev_get_by_index+0x5e/0x80 [ 8240.721372][ T253] fib6_nh_init+0x3d8/0x1580 [ 8240.721372][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8240.721372][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8240.721372][ T253] ipv6_add_addr+0x411/0x2000 [ 8240.721372][ T253] inet6_addr_add+0x30e/0xa40 [ 8240.721372][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8240.721372][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8240.721372][ T253] netlink_rcv_skb+0x130/0x360 [ 8240.721372][ T253] netlink_unicast+0x449/0x710 [ 8240.721372][ T253] netlink_sendmsg+0x723/0xbe0 [ 8240.721372][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8240.721372][ T253] ___sys_sendmsg+0xee/0x170 [ 8240.721372][ T253] __sys_sendmsg+0xcd/0x170 [ 8240.721372][ T253] do_syscall_64+0xc6/0x1e0 [ 8240.721372][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8240.721372][ T253] [ 8240.723614][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8240.723614][ T253] netdev_get_by_index+0x5e/0x80 [ 8240.723614][ T253] fib6_nh_init+0x3d8/0x1580 [ 8240.723614][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8240.723614][ T253] ip6_route_add+0x1c/0x140 [ 8240.723614][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8240.723614][ T253] addrconf_add_dev+0xe2/0x170 [ 8240.723614][ T253] inet6_addr_add+0x12f/0xa40 [ 8240.723614][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8240.723614][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8240.723614][ T253] netlink_rcv_skb+0x130/0x360 [ 8240.723614][ T253] netlink_unicast+0x449/0x710 [ 8240.723614][ T253] netlink_sendmsg+0x723/0xbe0 [ 8240.723614][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8240.723614][ T253] ___sys_sendmsg+0xee/0x170 [ 8240.723614][ T253] __sys_sendmsg+0xcd/0x170 [ 8240.723614][ T253] do_syscall_64+0xc6/0x1e0 [ 8240.723614][ T253] [ 8240.725809][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8240.725809][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8240.725809][ T253] ipv6_find_idev+0x102/0x170 [ 8240.725809][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8240.725809][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8240.725809][ T253] netlink_rcv_skb+0x130/0x360 [ 8240.725809][ T253] netlink_unicast+0x449/0x710 [ 8240.725809][ T253] netlink_sendmsg+0x723/0xbe0 [ 8240.725809][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8240.725809][ T253] ___sys_sendmsg+0xee/0x170 [ 8240.725809][ T253] __sys_sendmsg+0xcd/0x170 [ 8240.725809][ T253] do_syscall_64+0xc6/0x1e0 [ 8240.725809][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8240.725809][ T253] [ 8240.727530][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8240.727530][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8240.727530][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8240.727530][ T253] ipv6_find_idev+0x102/0x170 [ 8240.727530][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8240.727530][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8240.727530][ T253] netlink_rcv_skb+0x130/0x360 [ 8240.727530][ T253] netlink_unicast+0x449/0x710 [ 8240.727530][ T253] netlink_sendmsg+0x723/0xbe0 [ 8240.727530][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8240.727530][ T253] ___sys_sendmsg+0xee/0x170 [ 8240.727530][ T253] __sys_sendmsg+0xcd/0x170 [ 8240.727530][ T253] do_syscall_64+0xc6/0x1e0 [ 8240.727530][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8240.727530][ T253] [ 8250.962313][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8250.962726][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8250.962726][ T253] dst_init+0x84/0x4a0 [ 8250.962726][ T253] dst_alloc+0x97/0x150 [ 8250.962726][ T253] ip6_dst_alloc+0x23/0x90 [ 8250.962726][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8250.962726][ T253] ip6_pol_route+0x56f/0x840 [ 8250.962726][ T253] fib6_rule_lookup+0x334/0x630 [ 8250.962726][ T253] ip6_route_output_flags+0x259/0x480 [ 8250.962726][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8250.962726][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8250.962726][ T253] netlink_rcv_skb+0x130/0x360 [ 8250.962726][ T253] netlink_unicast+0x449/0x710 [ 8250.962726][ T253] netlink_sendmsg+0x723/0xbe0 [ 8250.962726][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8250.962726][ T253] ___sys_sendmsg+0xee/0x170 [ 8250.962726][ T253] __sys_sendmsg+0xcd/0x170 [ 8250.962726][ T253] do_syscall_64+0xc6/0x1e0 [ 8250.962726][ T253] [ 8250.964915][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8250.964915][ T253] netdev_get_by_index+0x5e/0x80 [ 8250.964915][ T253] fib6_nh_init+0x3d8/0x1580 [ 8250.964915][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8250.964915][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8250.964915][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8250.964915][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8250.964915][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8250.964915][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8250.964915][ T253] addrconf_dad_begin+0x310/0x670 [ 8250.964915][ T253] addrconf_dad_work+0x10b/0xab0 [ 8250.964915][ T253] process_one_work+0x84d/0x18a0 [ 8250.964915][ T253] worker_thread+0x587/0xd30 [ 8250.964915][ T253] kthread+0x28a/0x350 [ 8250.964915][ T253] ret_from_fork+0x31/0x70 [ 8250.964915][ T253] ret_from_fork_asm+0x1a/0x30 [ 8250.964915][ T253] [ 8250.967048][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8250.967048][ T253] netdev_get_by_index+0x5e/0x80 [ 8250.967048][ T253] fib6_nh_init+0x3d8/0x1580 [ 8250.967048][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8250.967048][ T253] ip6_route_add+0x1c/0x140 [ 8250.967048][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8250.967048][ T253] inet6_addr_add+0x4f8/0xa40 [ 8250.967048][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8250.967048][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8250.967048][ T253] netlink_rcv_skb+0x130/0x360 [ 8250.967048][ T253] netlink_unicast+0x449/0x710 [ 8250.967048][ T253] netlink_sendmsg+0x723/0xbe0 [ 8250.967048][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8250.967048][ T253] ___sys_sendmsg+0xee/0x170 [ 8250.967048][ T253] __sys_sendmsg+0xcd/0x170 [ 8250.967048][ T253] do_syscall_64+0xc6/0x1e0 [ 8250.967048][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8250.967048][ T253] [ 8250.969285][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8250.969285][ T253] netdev_get_by_index+0x5e/0x80 [ 8250.969285][ T253] fib6_nh_init+0x3d8/0x1580 [ 8250.969285][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8250.969285][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8250.969285][ T253] ipv6_add_addr+0x411/0x2000 [ 8250.969285][ T253] inet6_addr_add+0x30e/0xa40 [ 8250.969285][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8250.969285][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8250.969285][ T253] netlink_rcv_skb+0x130/0x360 [ 8250.969285][ T253] netlink_unicast+0x449/0x710 [ 8250.969285][ T253] netlink_sendmsg+0x723/0xbe0 [ 8250.969285][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8250.969285][ T253] ___sys_sendmsg+0xee/0x170 [ 8250.969285][ T253] __sys_sendmsg+0xcd/0x170 [ 8250.969285][ T253] do_syscall_64+0xc6/0x1e0 [ 8250.969285][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8250.969285][ T253] [ 8250.971534][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8250.971534][ T253] netdev_get_by_index+0x5e/0x80 [ 8250.971534][ T253] fib6_nh_init+0x3d8/0x1580 [ 8250.971534][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8250.971534][ T253] ip6_route_add+0x1c/0x140 [ 8250.971534][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8250.971534][ T253] addrconf_add_dev+0xe2/0x170 [ 8250.971534][ T253] inet6_addr_add+0x12f/0xa40 [ 8250.971534][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8250.971534][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8250.971534][ T253] netlink_rcv_skb+0x130/0x360 [ 8250.971534][ T253] netlink_unicast+0x449/0x710 [ 8250.971534][ T253] netlink_sendmsg+0x723/0xbe0 [ 8250.971534][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8250.971534][ T253] ___sys_sendmsg+0xee/0x170 [ 8250.971534][ T253] __sys_sendmsg+0xcd/0x170 [ 8250.971534][ T253] do_syscall_64+0xc6/0x1e0 [ 8250.971534][ T253] [ 8250.973742][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8250.973742][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8250.973742][ T253] ipv6_find_idev+0x102/0x170 [ 8250.973742][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8250.973742][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8250.973742][ T253] netlink_rcv_skb+0x130/0x360 [ 8250.973742][ T253] netlink_unicast+0x449/0x710 [ 8250.973742][ T253] netlink_sendmsg+0x723/0xbe0 [ 8250.973742][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8250.973742][ T253] ___sys_sendmsg+0xee/0x170 [ 8250.973742][ T253] __sys_sendmsg+0xcd/0x170 [ 8250.973742][ T253] do_syscall_64+0xc6/0x1e0 [ 8250.973742][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8250.973742][ T253] [ 8250.975465][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8250.975465][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8250.975465][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8250.975465][ T253] ipv6_find_idev+0x102/0x170 [ 8250.975465][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8250.975465][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8250.975465][ T253] netlink_rcv_skb+0x130/0x360 [ 8250.975465][ T253] netlink_unicast+0x449/0x710 [ 8250.975465][ T253] netlink_sendmsg+0x723/0xbe0 [ 8250.975465][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8250.975465][ T253] ___sys_sendmsg+0xee/0x170 [ 8250.975465][ T253] __sys_sendmsg+0xcd/0x170 [ 8250.975465][ T253] do_syscall_64+0xc6/0x1e0 [ 8250.975465][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8250.975465][ T253] [ 8261.218239][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8261.218989][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8261.218989][ T253] dst_init+0x84/0x4a0 [ 8261.218989][ T253] dst_alloc+0x97/0x150 [ 8261.218989][ T253] ip6_dst_alloc+0x23/0x90 [ 8261.218989][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8261.218989][ T253] ip6_pol_route+0x56f/0x840 [ 8261.218989][ T253] fib6_rule_lookup+0x334/0x630 [ 8261.218989][ T253] ip6_route_output_flags+0x259/0x480 [ 8261.218989][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8261.218989][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8261.218989][ T253] netlink_rcv_skb+0x130/0x360 [ 8261.218989][ T253] netlink_unicast+0x449/0x710 [ 8261.218989][ T253] netlink_sendmsg+0x723/0xbe0 [ 8261.218989][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8261.218989][ T253] ___sys_sendmsg+0xee/0x170 [ 8261.218989][ T253] __sys_sendmsg+0xcd/0x170 [ 8261.218989][ T253] do_syscall_64+0xc6/0x1e0 [ 8261.218989][ T253] [ 8261.222816][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8261.222816][ T253] netdev_get_by_index+0x5e/0x80 [ 8261.222816][ T253] fib6_nh_init+0x3d8/0x1580 [ 8261.222816][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8261.222816][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8261.222816][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8261.222816][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8261.222816][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8261.222816][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8261.222816][ T253] addrconf_dad_begin+0x310/0x670 [ 8261.222816][ T253] addrconf_dad_work+0x10b/0xab0 [ 8261.222816][ T253] process_one_work+0x84d/0x18a0 [ 8261.222816][ T253] worker_thread+0x587/0xd30 [ 8261.222816][ T253] kthread+0x28a/0x350 [ 8261.222816][ T253] ret_from_fork+0x31/0x70 [ 8261.222816][ T253] ret_from_fork_asm+0x1a/0x30 [ 8261.222816][ T253] [ 8261.226555][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8261.226555][ T253] netdev_get_by_index+0x5e/0x80 [ 8261.226555][ T253] fib6_nh_init+0x3d8/0x1580 [ 8261.226555][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8261.226555][ T253] ip6_route_add+0x1c/0x140 [ 8261.226555][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8261.226555][ T253] inet6_addr_add+0x4f8/0xa40 [ 8261.226555][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8261.226555][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8261.226555][ T253] netlink_rcv_skb+0x130/0x360 [ 8261.226555][ T253] netlink_unicast+0x449/0x710 [ 8261.226555][ T253] netlink_sendmsg+0x723/0xbe0 [ 8261.226555][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8261.226555][ T253] ___sys_sendmsg+0xee/0x170 [ 8261.226555][ T253] __sys_sendmsg+0xcd/0x170 [ 8261.226555][ T253] do_syscall_64+0xc6/0x1e0 [ 8261.226555][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8261.226555][ T253] [ 8261.230454][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8261.230454][ T253] netdev_get_by_index+0x5e/0x80 [ 8261.230454][ T253] fib6_nh_init+0x3d8/0x1580 [ 8261.230454][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8261.230454][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8261.230454][ T253] ipv6_add_addr+0x411/0x2000 [ 8261.230454][ T253] inet6_addr_add+0x30e/0xa40 [ 8261.230454][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8261.230454][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8261.230454][ T253] netlink_rcv_skb+0x130/0x360 [ 8261.230454][ T253] netlink_unicast+0x449/0x710 [ 8261.230454][ T253] netlink_sendmsg+0x723/0xbe0 [ 8261.230454][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8261.230454][ T253] ___sys_sendmsg+0xee/0x170 [ 8261.230454][ T253] __sys_sendmsg+0xcd/0x170 [ 8261.230454][ T253] do_syscall_64+0xc6/0x1e0 [ 8261.230454][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8261.230454][ T253] [ 8261.234372][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8261.234372][ T253] netdev_get_by_index+0x5e/0x80 [ 8261.234372][ T253] fib6_nh_init+0x3d8/0x1580 [ 8261.234372][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8261.234372][ T253] ip6_route_add+0x1c/0x140 [ 8261.234372][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8261.234372][ T253] addrconf_add_dev+0xe2/0x170 [ 8261.234372][ T253] inet6_addr_add+0x12f/0xa40 [ 8261.234372][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8261.234372][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8261.234372][ T253] netlink_rcv_skb+0x130/0x360 [ 8261.234372][ T253] netlink_unicast+0x449/0x710 [ 8261.234372][ T253] netlink_sendmsg+0x723/0xbe0 [ 8261.234372][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8261.234372][ T253] ___sys_sendmsg+0xee/0x170 [ 8261.234372][ T253] __sys_sendmsg+0xcd/0x170 [ 8261.234372][ T253] do_syscall_64+0xc6/0x1e0 [ 8261.234372][ T253] [ 8261.238234][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8261.238234][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8261.238234][ T253] ipv6_find_idev+0x102/0x170 [ 8261.238234][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8261.238234][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8261.238234][ T253] netlink_rcv_skb+0x130/0x360 [ 8261.238234][ T253] netlink_unicast+0x449/0x710 [ 8261.238234][ T253] netlink_sendmsg+0x723/0xbe0 [ 8261.238234][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8261.238234][ T253] ___sys_sendmsg+0xee/0x170 [ 8261.238234][ T253] __sys_sendmsg+0xcd/0x170 [ 8261.238234][ T253] do_syscall_64+0xc6/0x1e0 [ 8261.238234][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8261.238234][ T253] [ 8261.241246][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8261.241246][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8261.241246][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8261.241246][ T253] ipv6_find_idev+0x102/0x170 [ 8261.241246][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8261.241246][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8261.241246][ T253] netlink_rcv_skb+0x130/0x360 [ 8261.241246][ T253] netlink_unicast+0x449/0x710 [ 8261.241246][ T253] netlink_sendmsg+0x723/0xbe0 [ 8261.241246][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8261.241246][ T253] ___sys_sendmsg+0xee/0x170 [ 8261.241246][ T253] __sys_sendmsg+0xcd/0x170 [ 8261.241246][ T253] do_syscall_64+0xc6/0x1e0 [ 8261.241246][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8261.241246][ T253] [ 8271.482242][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8271.482987][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8271.482987][ T253] dst_init+0x84/0x4a0 [ 8271.482987][ T253] dst_alloc+0x97/0x150 [ 8271.482987][ T253] ip6_dst_alloc+0x23/0x90 [ 8271.482987][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8271.482987][ T253] ip6_pol_route+0x56f/0x840 [ 8271.482987][ T253] fib6_rule_lookup+0x334/0x630 [ 8271.482987][ T253] ip6_route_output_flags+0x259/0x480 [ 8271.482987][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8271.482987][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8271.482987][ T253] netlink_rcv_skb+0x130/0x360 [ 8271.482987][ T253] netlink_unicast+0x449/0x710 [ 8271.482987][ T253] netlink_sendmsg+0x723/0xbe0 [ 8271.482987][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8271.482987][ T253] ___sys_sendmsg+0xee/0x170 [ 8271.482987][ T253] __sys_sendmsg+0xcd/0x170 [ 8271.482987][ T253] do_syscall_64+0xc6/0x1e0 [ 8271.482987][ T253] [ 8271.486811][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8271.486811][ T253] netdev_get_by_index+0x5e/0x80 [ 8271.486811][ T253] fib6_nh_init+0x3d8/0x1580 [ 8271.486811][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8271.486811][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8271.486811][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8271.486811][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8271.486811][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8271.486811][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8271.486811][ T253] addrconf_dad_begin+0x310/0x670 [ 8271.486811][ T253] addrconf_dad_work+0x10b/0xab0 [ 8271.486811][ T253] process_one_work+0x84d/0x18a0 [ 8271.486811][ T253] worker_thread+0x587/0xd30 [ 8271.486811][ T253] kthread+0x28a/0x350 [ 8271.486811][ T253] ret_from_fork+0x31/0x70 [ 8271.486811][ T253] ret_from_fork_asm+0x1a/0x30 [ 8271.486811][ T253] [ 8271.490538][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8271.490538][ T253] netdev_get_by_index+0x5e/0x80 [ 8271.490538][ T253] fib6_nh_init+0x3d8/0x1580 [ 8271.490538][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8271.490538][ T253] ip6_route_add+0x1c/0x140 [ 8271.490538][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8271.490538][ T253] inet6_addr_add+0x4f8/0xa40 [ 8271.490538][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8271.490538][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8271.490538][ T253] netlink_rcv_skb+0x130/0x360 [ 8271.490538][ T253] netlink_unicast+0x449/0x710 [ 8271.490538][ T253] netlink_sendmsg+0x723/0xbe0 [ 8271.490538][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8271.490538][ T253] ___sys_sendmsg+0xee/0x170 [ 8271.490538][ T253] __sys_sendmsg+0xcd/0x170 [ 8271.490538][ T253] do_syscall_64+0xc6/0x1e0 [ 8271.490538][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8271.490538][ T253] [ 8271.494472][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8271.494472][ T253] netdev_get_by_index+0x5e/0x80 [ 8271.494472][ T253] fib6_nh_init+0x3d8/0x1580 [ 8271.494472][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8271.494472][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8271.494472][ T253] ipv6_add_addr+0x411/0x2000 [ 8271.494472][ T253] inet6_addr_add+0x30e/0xa40 [ 8271.494472][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8271.494472][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8271.494472][ T253] netlink_rcv_skb+0x130/0x360 [ 8271.494472][ T253] netlink_unicast+0x449/0x710 [ 8271.494472][ T253] netlink_sendmsg+0x723/0xbe0 [ 8271.494472][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8271.494472][ T253] ___sys_sendmsg+0xee/0x170 [ 8271.494472][ T253] __sys_sendmsg+0xcd/0x170 [ 8271.494472][ T253] do_syscall_64+0xc6/0x1e0 [ 8271.494472][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8271.494472][ T253] [ 8271.498371][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8271.498371][ T253] netdev_get_by_index+0x5e/0x80 [ 8271.498371][ T253] fib6_nh_init+0x3d8/0x1580 [ 8271.498371][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8271.498371][ T253] ip6_route_add+0x1c/0x140 [ 8271.498371][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8271.498371][ T253] addrconf_add_dev+0xe2/0x170 [ 8271.498371][ T253] inet6_addr_add+0x12f/0xa40 [ 8271.498371][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8271.498371][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8271.498371][ T253] netlink_rcv_skb+0x130/0x360 [ 8271.498371][ T253] netlink_unicast+0x449/0x710 [ 8271.498371][ T253] netlink_sendmsg+0x723/0xbe0 [ 8271.498371][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8271.498371][ T253] ___sys_sendmsg+0xee/0x170 [ 8271.498371][ T253] __sys_sendmsg+0xcd/0x170 [ 8271.498371][ T253] do_syscall_64+0xc6/0x1e0 [ 8271.498371][ T253] [ 8271.502220][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8271.502220][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8271.502220][ T253] ipv6_find_idev+0x102/0x170 [ 8271.502220][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8271.502220][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8271.502220][ T253] netlink_rcv_skb+0x130/0x360 [ 8271.502220][ T253] netlink_unicast+0x449/0x710 [ 8271.502220][ T253] netlink_sendmsg+0x723/0xbe0 [ 8271.502220][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8271.502220][ T253] ___sys_sendmsg+0xee/0x170 [ 8271.502220][ T253] __sys_sendmsg+0xcd/0x170 [ 8271.502220][ T253] do_syscall_64+0xc6/0x1e0 [ 8271.502220][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8271.502220][ T253] [ 8271.505227][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8271.505227][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8271.505227][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8271.505227][ T253] ipv6_find_idev+0x102/0x170 [ 8271.505227][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8271.505227][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8271.505227][ T253] netlink_rcv_skb+0x130/0x360 [ 8271.505227][ T253] netlink_unicast+0x449/0x710 [ 8271.505227][ T253] netlink_sendmsg+0x723/0xbe0 [ 8271.505227][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8271.505227][ T253] ___sys_sendmsg+0xee/0x170 [ 8271.505227][ T253] __sys_sendmsg+0xcd/0x170 [ 8271.505227][ T253] do_syscall_64+0xc6/0x1e0 [ 8271.505227][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8271.505227][ T253] [ 8281.634247][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8281.634985][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8281.634985][ T253] dst_init+0x84/0x4a0 [ 8281.634985][ T253] dst_alloc+0x97/0x150 [ 8281.634985][ T253] ip6_dst_alloc+0x23/0x90 [ 8281.634985][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8281.634985][ T253] ip6_pol_route+0x56f/0x840 [ 8281.634985][ T253] fib6_rule_lookup+0x334/0x630 [ 8281.634985][ T253] ip6_route_output_flags+0x259/0x480 [ 8281.634985][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8281.634985][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8281.634985][ T253] netlink_rcv_skb+0x130/0x360 [ 8281.634985][ T253] netlink_unicast+0x449/0x710 [ 8281.634985][ T253] netlink_sendmsg+0x723/0xbe0 [ 8281.634985][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8281.634985][ T253] ___sys_sendmsg+0xee/0x170 [ 8281.634985][ T253] __sys_sendmsg+0xcd/0x170 [ 8281.634985][ T253] do_syscall_64+0xc6/0x1e0 [ 8281.634985][ T253] [ 8281.638813][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8281.638813][ T253] netdev_get_by_index+0x5e/0x80 [ 8281.638813][ T253] fib6_nh_init+0x3d8/0x1580 [ 8281.638813][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8281.638813][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8281.638813][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8281.638813][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8281.638813][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8281.638813][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8281.638813][ T253] addrconf_dad_begin+0x310/0x670 [ 8281.638813][ T253] addrconf_dad_work+0x10b/0xab0 [ 8281.638813][ T253] process_one_work+0x84d/0x18a0 [ 8281.638813][ T253] worker_thread+0x587/0xd30 [ 8281.638813][ T253] kthread+0x28a/0x350 [ 8281.638813][ T253] ret_from_fork+0x31/0x70 [ 8281.638813][ T253] ret_from_fork_asm+0x1a/0x30 [ 8281.638813][ T253] [ 8281.642558][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8281.642558][ T253] netdev_get_by_index+0x5e/0x80 [ 8281.642558][ T253] fib6_nh_init+0x3d8/0x1580 [ 8281.642558][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8281.642558][ T253] ip6_route_add+0x1c/0x140 [ 8281.642558][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8281.642558][ T253] inet6_addr_add+0x4f8/0xa40 [ 8281.642558][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8281.642558][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8281.642558][ T253] netlink_rcv_skb+0x130/0x360 [ 8281.642558][ T253] netlink_unicast+0x449/0x710 [ 8281.642558][ T253] netlink_sendmsg+0x723/0xbe0 [ 8281.642558][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8281.642558][ T253] ___sys_sendmsg+0xee/0x170 [ 8281.642558][ T253] __sys_sendmsg+0xcd/0x170 [ 8281.642558][ T253] do_syscall_64+0xc6/0x1e0 [ 8281.642558][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8281.642558][ T253] [ 8281.646470][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8281.646470][ T253] netdev_get_by_index+0x5e/0x80 [ 8281.646470][ T253] fib6_nh_init+0x3d8/0x1580 [ 8281.646470][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8281.646470][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8281.646470][ T253] ipv6_add_addr+0x411/0x2000 [ 8281.646470][ T253] inet6_addr_add+0x30e/0xa40 [ 8281.646470][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8281.646470][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8281.646470][ T253] netlink_rcv_skb+0x130/0x360 [ 8281.646470][ T253] netlink_unicast+0x449/0x710 [ 8281.646470][ T253] netlink_sendmsg+0x723/0xbe0 [ 8281.646470][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8281.646470][ T253] ___sys_sendmsg+0xee/0x170 [ 8281.646470][ T253] __sys_sendmsg+0xcd/0x170 [ 8281.646470][ T253] do_syscall_64+0xc6/0x1e0 [ 8281.646470][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8281.646470][ T253] [ 8281.650379][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8281.650379][ T253] netdev_get_by_index+0x5e/0x80 [ 8281.650379][ T253] fib6_nh_init+0x3d8/0x1580 [ 8281.650379][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8281.650379][ T253] ip6_route_add+0x1c/0x140 [ 8281.650379][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8281.650379][ T253] addrconf_add_dev+0xe2/0x170 [ 8281.650379][ T253] inet6_addr_add+0x12f/0xa40 [ 8281.650379][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8281.650379][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8281.650379][ T253] netlink_rcv_skb+0x130/0x360 [ 8281.650379][ T253] netlink_unicast+0x449/0x710 [ 8281.650379][ T253] netlink_sendmsg+0x723/0xbe0 [ 8281.650379][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8281.650379][ T253] ___sys_sendmsg+0xee/0x170 [ 8281.650379][ T253] __sys_sendmsg+0xcd/0x170 [ 8281.650379][ T253] do_syscall_64+0xc6/0x1e0 [ 8281.650379][ T253] [ 8281.654242][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8281.654242][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8281.654242][ T253] ipv6_find_idev+0x102/0x170 [ 8281.654242][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8281.654242][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8281.654242][ T253] netlink_rcv_skb+0x130/0x360 [ 8281.654242][ T253] netlink_unicast+0x449/0x710 [ 8281.654242][ T253] netlink_sendmsg+0x723/0xbe0 [ 8281.654242][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8281.654242][ T253] ___sys_sendmsg+0xee/0x170 [ 8281.654242][ T253] __sys_sendmsg+0xcd/0x170 [ 8281.654242][ T253] do_syscall_64+0xc6/0x1e0 [ 8281.654242][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8281.654242][ T253] [ 8281.657258][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8281.657258][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8281.657258][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8281.657258][ T253] ipv6_find_idev+0x102/0x170 [ 8281.657258][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8281.657258][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8281.657258][ T253] netlink_rcv_skb+0x130/0x360 [ 8281.657258][ T253] netlink_unicast+0x449/0x710 [ 8281.657258][ T253] netlink_sendmsg+0x723/0xbe0 [ 8281.657258][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8281.657258][ T253] ___sys_sendmsg+0xee/0x170 [ 8281.657258][ T253] __sys_sendmsg+0xcd/0x170 [ 8281.657258][ T253] do_syscall_64+0xc6/0x1e0 [ 8281.657258][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8281.657258][ T253] [ 8291.898251][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8291.898997][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8291.898997][ T253] dst_init+0x84/0x4a0 [ 8291.898997][ T253] dst_alloc+0x97/0x150 [ 8291.898997][ T253] ip6_dst_alloc+0x23/0x90 [ 8291.898997][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8291.898997][ T253] ip6_pol_route+0x56f/0x840 [ 8291.898997][ T253] fib6_rule_lookup+0x334/0x630 [ 8291.898997][ T253] ip6_route_output_flags+0x259/0x480 [ 8291.898997][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8291.898997][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8291.898997][ T253] netlink_rcv_skb+0x130/0x360 [ 8291.898997][ T253] netlink_unicast+0x449/0x710 [ 8291.898997][ T253] netlink_sendmsg+0x723/0xbe0 [ 8291.898997][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8291.898997][ T253] ___sys_sendmsg+0xee/0x170 [ 8291.898997][ T253] __sys_sendmsg+0xcd/0x170 [ 8291.898997][ T253] do_syscall_64+0xc6/0x1e0 [ 8291.898997][ T253] [ 8291.902939][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8291.902939][ T253] netdev_get_by_index+0x5e/0x80 [ 8291.902939][ T253] fib6_nh_init+0x3d8/0x1580 [ 8291.902939][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8291.902939][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8291.902939][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8291.902939][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8291.902939][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8291.902939][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8291.902939][ T253] addrconf_dad_begin+0x310/0x670 [ 8291.902939][ T253] addrconf_dad_work+0x10b/0xab0 [ 8291.902939][ T253] process_one_work+0x84d/0x18a0 [ 8291.902939][ T253] worker_thread+0x587/0xd30 [ 8291.902939][ T253] kthread+0x28a/0x350 [ 8291.902939][ T253] ret_from_fork+0x31/0x70 [ 8291.902939][ T253] ret_from_fork_asm+0x1a/0x30 [ 8291.902939][ T253] [ 8291.906671][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8291.906671][ T253] netdev_get_by_index+0x5e/0x80 [ 8291.906671][ T253] fib6_nh_init+0x3d8/0x1580 [ 8291.906671][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8291.906671][ T253] ip6_route_add+0x1c/0x140 [ 8291.906671][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8291.906671][ T253] inet6_addr_add+0x4f8/0xa40 [ 8291.906671][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8291.906671][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8291.906671][ T253] netlink_rcv_skb+0x130/0x360 [ 8291.906671][ T253] netlink_unicast+0x449/0x710 [ 8291.906671][ T253] netlink_sendmsg+0x723/0xbe0 [ 8291.906671][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8291.906671][ T253] ___sys_sendmsg+0xee/0x170 [ 8291.906671][ T253] __sys_sendmsg+0xcd/0x170 [ 8291.906671][ T253] do_syscall_64+0xc6/0x1e0 [ 8291.906671][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8291.906671][ T253] [ 8291.910578][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8291.910578][ T253] netdev_get_by_index+0x5e/0x80 [ 8291.910578][ T253] fib6_nh_init+0x3d8/0x1580 [ 8291.910578][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8291.910578][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8291.910578][ T253] ipv6_add_addr+0x411/0x2000 [ 8291.910578][ T253] inet6_addr_add+0x30e/0xa40 [ 8291.910578][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8291.910578][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8291.910578][ T253] netlink_rcv_skb+0x130/0x360 [ 8291.910578][ T253] netlink_unicast+0x449/0x710 [ 8291.910578][ T253] netlink_sendmsg+0x723/0xbe0 [ 8291.910578][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8291.910578][ T253] ___sys_sendmsg+0xee/0x170 [ 8291.910578][ T253] __sys_sendmsg+0xcd/0x170 [ 8291.910578][ T253] do_syscall_64+0xc6/0x1e0 [ 8291.910578][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8291.910578][ T253] [ 8291.914490][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8291.914490][ T253] netdev_get_by_index+0x5e/0x80 [ 8291.914490][ T253] fib6_nh_init+0x3d8/0x1580 [ 8291.914490][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8291.914490][ T253] ip6_route_add+0x1c/0x140 [ 8291.914490][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8291.914490][ T253] addrconf_add_dev+0xe2/0x170 [ 8291.914490][ T253] inet6_addr_add+0x12f/0xa40 [ 8291.914490][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8291.914490][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8291.914490][ T253] netlink_rcv_skb+0x130/0x360 [ 8291.914490][ T253] netlink_unicast+0x449/0x710 [ 8291.914490][ T253] netlink_sendmsg+0x723/0xbe0 [ 8291.914490][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8291.914490][ T253] ___sys_sendmsg+0xee/0x170 [ 8291.914490][ T253] __sys_sendmsg+0xcd/0x170 [ 8291.914490][ T253] do_syscall_64+0xc6/0x1e0 [ 8291.914490][ T253] [ 8291.918321][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8291.918321][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8291.918321][ T253] ipv6_find_idev+0x102/0x170 [ 8291.918321][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8291.918321][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8291.918321][ T253] netlink_rcv_skb+0x130/0x360 [ 8291.918321][ T253] netlink_unicast+0x449/0x710 [ 8291.918321][ T253] netlink_sendmsg+0x723/0xbe0 [ 8291.918321][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8291.918321][ T253] ___sys_sendmsg+0xee/0x170 [ 8291.918321][ T253] __sys_sendmsg+0xcd/0x170 [ 8291.918321][ T253] do_syscall_64+0xc6/0x1e0 [ 8291.918321][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8291.918321][ T253] [ 8291.921336][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8291.921336][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8291.921336][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8291.921336][ T253] ipv6_find_idev+0x102/0x170 [ 8291.921336][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8291.921336][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8291.921336][ T253] netlink_rcv_skb+0x130/0x360 [ 8291.921336][ T253] netlink_unicast+0x449/0x710 [ 8291.921336][ T253] netlink_sendmsg+0x723/0xbe0 [ 8291.921336][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8291.921336][ T253] ___sys_sendmsg+0xee/0x170 [ 8291.921336][ T253] __sys_sendmsg+0xcd/0x170 [ 8291.921336][ T253] do_syscall_64+0xc6/0x1e0 [ 8291.921336][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8291.921336][ T253] [ 8302.162256][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8302.162778][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8302.162778][ T253] dst_init+0x84/0x4a0 [ 8302.162778][ T253] dst_alloc+0x97/0x150 [ 8302.162778][ T253] ip6_dst_alloc+0x23/0x90 [ 8302.162778][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8302.162778][ T253] ip6_pol_route+0x56f/0x840 [ 8302.162778][ T253] fib6_rule_lookup+0x334/0x630 [ 8302.162778][ T253] ip6_route_output_flags+0x259/0x480 [ 8302.162778][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8302.162778][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8302.162778][ T253] netlink_rcv_skb+0x130/0x360 [ 8302.162778][ T253] netlink_unicast+0x449/0x710 [ 8302.162778][ T253] netlink_sendmsg+0x723/0xbe0 [ 8302.162778][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8302.162778][ T253] ___sys_sendmsg+0xee/0x170 [ 8302.162778][ T253] __sys_sendmsg+0xcd/0x170 [ 8302.162778][ T253] do_syscall_64+0xc6/0x1e0 [ 8302.162778][ T253] [ 8302.164983][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8302.164983][ T253] netdev_get_by_index+0x5e/0x80 [ 8302.164983][ T253] fib6_nh_init+0x3d8/0x1580 [ 8302.164983][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8302.164983][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8302.164983][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8302.164983][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8302.164983][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8302.164983][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8302.164983][ T253] addrconf_dad_begin+0x310/0x670 [ 8302.164983][ T253] addrconf_dad_work+0x10b/0xab0 [ 8302.164983][ T253] process_one_work+0x84d/0x18a0 [ 8302.164983][ T253] worker_thread+0x587/0xd30 [ 8302.164983][ T253] kthread+0x28a/0x350 [ 8302.164983][ T253] ret_from_fork+0x31/0x70 [ 8302.164983][ T253] ret_from_fork_asm+0x1a/0x30 [ 8302.164983][ T253] [ 8302.167127][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8302.167127][ T253] netdev_get_by_index+0x5e/0x80 [ 8302.167127][ T253] fib6_nh_init+0x3d8/0x1580 [ 8302.167127][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8302.167127][ T253] ip6_route_add+0x1c/0x140 [ 8302.167127][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8302.167127][ T253] inet6_addr_add+0x4f8/0xa40 [ 8302.167127][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8302.167127][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8302.167127][ T253] netlink_rcv_skb+0x130/0x360 [ 8302.167127][ T253] netlink_unicast+0x449/0x710 [ 8302.167127][ T253] netlink_sendmsg+0x723/0xbe0 [ 8302.167127][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8302.167127][ T253] ___sys_sendmsg+0xee/0x170 [ 8302.167127][ T253] __sys_sendmsg+0xcd/0x170 [ 8302.167127][ T253] do_syscall_64+0xc6/0x1e0 [ 8302.167127][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8302.167127][ T253] [ 8302.169392][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8302.169392][ T253] netdev_get_by_index+0x5e/0x80 [ 8302.169392][ T253] fib6_nh_init+0x3d8/0x1580 [ 8302.169392][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8302.169392][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8302.169392][ T253] ipv6_add_addr+0x411/0x2000 [ 8302.169392][ T253] inet6_addr_add+0x30e/0xa40 [ 8302.169392][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8302.169392][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8302.169392][ T253] netlink_rcv_skb+0x130/0x360 [ 8302.169392][ T253] netlink_unicast+0x449/0x710 [ 8302.169392][ T253] netlink_sendmsg+0x723/0xbe0 [ 8302.169392][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8302.169392][ T253] ___sys_sendmsg+0xee/0x170 [ 8302.169392][ T253] __sys_sendmsg+0xcd/0x170 [ 8302.169392][ T253] do_syscall_64+0xc6/0x1e0 [ 8302.169392][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8302.169392][ T253] [ 8302.171660][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8302.171660][ T253] netdev_get_by_index+0x5e/0x80 [ 8302.171660][ T253] fib6_nh_init+0x3d8/0x1580 [ 8302.171660][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8302.171660][ T253] ip6_route_add+0x1c/0x140 [ 8302.171660][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8302.171660][ T253] addrconf_add_dev+0xe2/0x170 [ 8302.171660][ T253] inet6_addr_add+0x12f/0xa40 [ 8302.171660][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8302.171660][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8302.171660][ T253] netlink_rcv_skb+0x130/0x360 [ 8302.171660][ T253] netlink_unicast+0x449/0x710 [ 8302.171660][ T253] netlink_sendmsg+0x723/0xbe0 [ 8302.171660][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8302.171660][ T253] ___sys_sendmsg+0xee/0x170 [ 8302.171660][ T253] __sys_sendmsg+0xcd/0x170 [ 8302.171660][ T253] do_syscall_64+0xc6/0x1e0 [ 8302.171660][ T253] [ 8302.173864][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8302.173864][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8302.173864][ T253] ipv6_find_idev+0x102/0x170 [ 8302.173864][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8302.173864][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8302.173864][ T253] netlink_rcv_skb+0x130/0x360 [ 8302.173864][ T253] netlink_unicast+0x449/0x710 [ 8302.173864][ T253] netlink_sendmsg+0x723/0xbe0 [ 8302.173864][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8302.173864][ T253] ___sys_sendmsg+0xee/0x170 [ 8302.173864][ T253] __sys_sendmsg+0xcd/0x170 [ 8302.173864][ T253] do_syscall_64+0xc6/0x1e0 [ 8302.173864][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8302.173864][ T253] [ 8302.175600][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8302.175600][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8302.175600][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8302.175600][ T253] ipv6_find_idev+0x102/0x170 [ 8302.175600][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8302.175600][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8302.175600][ T253] netlink_rcv_skb+0x130/0x360 [ 8302.175600][ T253] netlink_unicast+0x449/0x710 [ 8302.175600][ T253] netlink_sendmsg+0x723/0xbe0 [ 8302.175600][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8302.175600][ T253] ___sys_sendmsg+0xee/0x170 [ 8302.175600][ T253] __sys_sendmsg+0xcd/0x170 [ 8302.175600][ T253] do_syscall_64+0xc6/0x1e0 [ 8302.175600][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8302.175600][ T253] [ 8312.418302][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8312.418716][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8312.418716][ T253] dst_init+0x84/0x4a0 [ 8312.418716][ T253] dst_alloc+0x97/0x150 [ 8312.418716][ T253] ip6_dst_alloc+0x23/0x90 [ 8312.418716][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8312.418716][ T253] ip6_pol_route+0x56f/0x840 [ 8312.418716][ T253] fib6_rule_lookup+0x334/0x630 [ 8312.418716][ T253] ip6_route_output_flags+0x259/0x480 [ 8312.418716][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8312.418716][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8312.418716][ T253] netlink_rcv_skb+0x130/0x360 [ 8312.418716][ T253] netlink_unicast+0x449/0x710 [ 8312.418716][ T253] netlink_sendmsg+0x723/0xbe0 [ 8312.418716][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8312.418716][ T253] ___sys_sendmsg+0xee/0x170 [ 8312.418716][ T253] __sys_sendmsg+0xcd/0x170 [ 8312.418716][ T253] do_syscall_64+0xc6/0x1e0 [ 8312.418716][ T253] [ 8312.420924][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8312.420924][ T253] netdev_get_by_index+0x5e/0x80 [ 8312.420924][ T253] fib6_nh_init+0x3d8/0x1580 [ 8312.420924][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8312.420924][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8312.420924][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8312.420924][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8312.420924][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8312.420924][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8312.420924][ T253] addrconf_dad_begin+0x310/0x670 [ 8312.420924][ T253] addrconf_dad_work+0x10b/0xab0 [ 8312.420924][ T253] process_one_work+0x84d/0x18a0 [ 8312.420924][ T253] worker_thread+0x587/0xd30 [ 8312.420924][ T253] kthread+0x28a/0x350 [ 8312.420924][ T253] ret_from_fork+0x31/0x70 [ 8312.420924][ T253] ret_from_fork_asm+0x1a/0x30 [ 8312.420924][ T253] [ 8312.423073][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8312.423073][ T253] netdev_get_by_index+0x5e/0x80 [ 8312.423073][ T253] fib6_nh_init+0x3d8/0x1580 [ 8312.423073][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8312.423073][ T253] ip6_route_add+0x1c/0x140 [ 8312.423073][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8312.423073][ T253] inet6_addr_add+0x4f8/0xa40 [ 8312.423073][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8312.423073][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8312.423073][ T253] netlink_rcv_skb+0x130/0x360 [ 8312.423073][ T253] netlink_unicast+0x449/0x710 [ 8312.423073][ T253] netlink_sendmsg+0x723/0xbe0 [ 8312.423073][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8312.423073][ T253] ___sys_sendmsg+0xee/0x170 [ 8312.423073][ T253] __sys_sendmsg+0xcd/0x170 [ 8312.423073][ T253] do_syscall_64+0xc6/0x1e0 [ 8312.423073][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8312.423073][ T253] [ 8312.425314][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8312.425314][ T253] netdev_get_by_index+0x5e/0x80 [ 8312.425314][ T253] fib6_nh_init+0x3d8/0x1580 [ 8312.425314][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8312.425314][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8312.425314][ T253] ipv6_add_addr+0x411/0x2000 [ 8312.425314][ T253] inet6_addr_add+0x30e/0xa40 [ 8312.425314][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8312.425314][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8312.425314][ T253] netlink_rcv_skb+0x130/0x360 [ 8312.425314][ T253] netlink_unicast+0x449/0x710 [ 8312.425314][ T253] netlink_sendmsg+0x723/0xbe0 [ 8312.425314][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8312.425314][ T253] ___sys_sendmsg+0xee/0x170 [ 8312.425314][ T253] __sys_sendmsg+0xcd/0x170 [ 8312.425314][ T253] do_syscall_64+0xc6/0x1e0 [ 8312.425314][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8312.425314][ T253] [ 8312.427546][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8312.427546][ T253] netdev_get_by_index+0x5e/0x80 [ 8312.427546][ T253] fib6_nh_init+0x3d8/0x1580 [ 8312.427546][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8312.427546][ T253] ip6_route_add+0x1c/0x140 [ 8312.427546][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8312.427546][ T253] addrconf_add_dev+0xe2/0x170 [ 8312.427546][ T253] inet6_addr_add+0x12f/0xa40 [ 8312.427546][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8312.427546][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8312.427546][ T253] netlink_rcv_skb+0x130/0x360 [ 8312.427546][ T253] netlink_unicast+0x449/0x710 [ 8312.427546][ T253] netlink_sendmsg+0x723/0xbe0 [ 8312.427546][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8312.427546][ T253] ___sys_sendmsg+0xee/0x170 [ 8312.427546][ T253] __sys_sendmsg+0xcd/0x170 [ 8312.427546][ T253] do_syscall_64+0xc6/0x1e0 [ 8312.427546][ T253] [ 8312.429756][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8312.429756][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8312.429756][ T253] ipv6_find_idev+0x102/0x170 [ 8312.429756][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8312.429756][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8312.429756][ T253] netlink_rcv_skb+0x130/0x360 [ 8312.429756][ T253] netlink_unicast+0x449/0x710 [ 8312.429756][ T253] netlink_sendmsg+0x723/0xbe0 [ 8312.429756][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8312.429756][ T253] ___sys_sendmsg+0xee/0x170 [ 8312.429756][ T253] __sys_sendmsg+0xcd/0x170 [ 8312.429756][ T253] do_syscall_64+0xc6/0x1e0 [ 8312.429756][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8312.429756][ T253] [ 8312.431489][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8312.431489][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8312.431489][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8312.431489][ T253] ipv6_find_idev+0x102/0x170 [ 8312.431489][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8312.431489][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8312.431489][ T253] netlink_rcv_skb+0x130/0x360 [ 8312.431489][ T253] netlink_unicast+0x449/0x710 [ 8312.431489][ T253] netlink_sendmsg+0x723/0xbe0 [ 8312.431489][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8312.431489][ T253] ___sys_sendmsg+0xee/0x170 [ 8312.431489][ T253] __sys_sendmsg+0xcd/0x170 [ 8312.431489][ T253] do_syscall_64+0xc6/0x1e0 [ 8312.431489][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8312.431489][ T253] [ 8322.434295][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8322.434712][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8322.434712][ T253] dst_init+0x84/0x4a0 [ 8322.434712][ T253] dst_alloc+0x97/0x150 [ 8322.434712][ T253] ip6_dst_alloc+0x23/0x90 [ 8322.434712][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8322.434712][ T253] ip6_pol_route+0x56f/0x840 [ 8322.434712][ T253] fib6_rule_lookup+0x334/0x630 [ 8322.434712][ T253] ip6_route_output_flags+0x259/0x480 [ 8322.434712][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8322.434712][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8322.434712][ T253] netlink_rcv_skb+0x130/0x360 [ 8322.434712][ T253] netlink_unicast+0x449/0x710 [ 8322.434712][ T253] netlink_sendmsg+0x723/0xbe0 [ 8322.434712][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8322.434712][ T253] ___sys_sendmsg+0xee/0x170 [ 8322.434712][ T253] __sys_sendmsg+0xcd/0x170 [ 8322.434712][ T253] do_syscall_64+0xc6/0x1e0 [ 8322.434712][ T253] [ 8322.436906][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8322.436906][ T253] netdev_get_by_index+0x5e/0x80 [ 8322.436906][ T253] fib6_nh_init+0x3d8/0x1580 [ 8322.436906][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8322.436906][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8322.436906][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8322.436906][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8322.436906][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8322.436906][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8322.436906][ T253] addrconf_dad_begin+0x310/0x670 [ 8322.436906][ T253] addrconf_dad_work+0x10b/0xab0 [ 8322.436906][ T253] process_one_work+0x84d/0x18a0 [ 8322.436906][ T253] worker_thread+0x587/0xd30 [ 8322.436906][ T253] kthread+0x28a/0x350 [ 8322.436906][ T253] ret_from_fork+0x31/0x70 [ 8322.436906][ T253] ret_from_fork_asm+0x1a/0x30 [ 8322.436906][ T253] [ 8322.439053][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8322.439053][ T253] netdev_get_by_index+0x5e/0x80 [ 8322.439053][ T253] fib6_nh_init+0x3d8/0x1580 [ 8322.439053][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8322.439053][ T253] ip6_route_add+0x1c/0x140 [ 8322.439053][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8322.439053][ T253] inet6_addr_add+0x4f8/0xa40 [ 8322.439053][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8322.439053][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8322.439053][ T253] netlink_rcv_skb+0x130/0x360 [ 8322.439053][ T253] netlink_unicast+0x449/0x710 [ 8322.439053][ T253] netlink_sendmsg+0x723/0xbe0 [ 8322.439053][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8322.439053][ T253] ___sys_sendmsg+0xee/0x170 [ 8322.439053][ T253] __sys_sendmsg+0xcd/0x170 [ 8322.439053][ T253] do_syscall_64+0xc6/0x1e0 [ 8322.439053][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8322.439053][ T253] [ 8322.441321][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8322.441321][ T253] netdev_get_by_index+0x5e/0x80 [ 8322.441321][ T253] fib6_nh_init+0x3d8/0x1580 [ 8322.441321][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8322.441321][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8322.441321][ T253] ipv6_add_addr+0x411/0x2000 [ 8322.441321][ T253] inet6_addr_add+0x30e/0xa40 [ 8322.441321][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8322.441321][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8322.441321][ T253] netlink_rcv_skb+0x130/0x360 [ 8322.441321][ T253] netlink_unicast+0x449/0x710 [ 8322.441321][ T253] netlink_sendmsg+0x723/0xbe0 [ 8322.441321][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8322.441321][ T253] ___sys_sendmsg+0xee/0x170 [ 8322.441321][ T253] __sys_sendmsg+0xcd/0x170 [ 8322.441321][ T253] do_syscall_64+0xc6/0x1e0 [ 8322.441321][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8322.441321][ T253] [ 8322.443559][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8322.443559][ T253] netdev_get_by_index+0x5e/0x80 [ 8322.443559][ T253] fib6_nh_init+0x3d8/0x1580 [ 8322.443559][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8322.443559][ T253] ip6_route_add+0x1c/0x140 [ 8322.443559][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8322.443559][ T253] addrconf_add_dev+0xe2/0x170 [ 8322.443559][ T253] inet6_addr_add+0x12f/0xa40 [ 8322.443559][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8322.443559][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8322.443559][ T253] netlink_rcv_skb+0x130/0x360 [ 8322.443559][ T253] netlink_unicast+0x449/0x710 [ 8322.443559][ T253] netlink_sendmsg+0x723/0xbe0 [ 8322.443559][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8322.443559][ T253] ___sys_sendmsg+0xee/0x170 [ 8322.443559][ T253] __sys_sendmsg+0xcd/0x170 [ 8322.443559][ T253] do_syscall_64+0xc6/0x1e0 [ 8322.443559][ T253] [ 8322.445764][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8322.445764][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8322.445764][ T253] ipv6_find_idev+0x102/0x170 [ 8322.445764][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8322.445764][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8322.445764][ T253] netlink_rcv_skb+0x130/0x360 [ 8322.445764][ T253] netlink_unicast+0x449/0x710 [ 8322.445764][ T253] netlink_sendmsg+0x723/0xbe0 [ 8322.445764][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8322.445764][ T253] ___sys_sendmsg+0xee/0x170 [ 8322.445764][ T253] __sys_sendmsg+0xcd/0x170 [ 8322.445764][ T253] do_syscall_64+0xc6/0x1e0 [ 8322.445764][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8322.445764][ T253] [ 8322.447486][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8322.447486][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8322.447486][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8322.447486][ T253] ipv6_find_idev+0x102/0x170 [ 8322.447486][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8322.447486][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8322.447486][ T253] netlink_rcv_skb+0x130/0x360 [ 8322.447486][ T253] netlink_unicast+0x449/0x710 [ 8322.447486][ T253] netlink_sendmsg+0x723/0xbe0 [ 8322.447486][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8322.447486][ T253] ___sys_sendmsg+0xee/0x170 [ 8322.447486][ T253] __sys_sendmsg+0xcd/0x170 [ 8322.447486][ T253] do_syscall_64+0xc6/0x1e0 [ 8322.447486][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8322.447486][ T253] [ 8332.698317][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8332.698799][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8332.698799][ T253] dst_init+0x84/0x4a0 [ 8332.698799][ T253] dst_alloc+0x97/0x150 [ 8332.698799][ T253] ip6_dst_alloc+0x23/0x90 [ 8332.698799][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8332.698799][ T253] ip6_pol_route+0x56f/0x840 [ 8332.698799][ T253] fib6_rule_lookup+0x334/0x630 [ 8332.698799][ T253] ip6_route_output_flags+0x259/0x480 [ 8332.698799][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8332.698799][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8332.698799][ T253] netlink_rcv_skb+0x130/0x360 [ 8332.698799][ T253] netlink_unicast+0x449/0x710 [ 8332.698799][ T253] netlink_sendmsg+0x723/0xbe0 [ 8332.698799][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8332.698799][ T253] ___sys_sendmsg+0xee/0x170 [ 8332.698799][ T253] __sys_sendmsg+0xcd/0x170 [ 8332.698799][ T253] do_syscall_64+0xc6/0x1e0 [ 8332.698799][ T253] [ 8332.701525][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8332.701525][ T253] netdev_get_by_index+0x5e/0x80 [ 8332.701525][ T253] fib6_nh_init+0x3d8/0x1580 [ 8332.701525][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8332.701525][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8332.701525][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8332.701525][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8332.701525][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8332.701525][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8332.701525][ T253] addrconf_dad_begin+0x310/0x670 [ 8332.701525][ T253] addrconf_dad_work+0x10b/0xab0 [ 8332.701525][ T253] process_one_work+0x84d/0x18a0 [ 8332.701525][ T253] worker_thread+0x587/0xd30 [ 8332.701525][ T253] kthread+0x28a/0x350 [ 8332.701525][ T253] ret_from_fork+0x31/0x70 [ 8332.701525][ T253] ret_from_fork_asm+0x1a/0x30 [ 8332.701525][ T253] [ 8332.703691][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8332.703691][ T253] netdev_get_by_index+0x5e/0x80 [ 8332.703691][ T253] fib6_nh_init+0x3d8/0x1580 [ 8332.703691][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8332.703691][ T253] ip6_route_add+0x1c/0x140 [ 8332.703691][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8332.703691][ T253] inet6_addr_add+0x4f8/0xa40 [ 8332.703691][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8332.703691][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8332.703691][ T253] netlink_rcv_skb+0x130/0x360 [ 8332.703691][ T253] netlink_unicast+0x449/0x710 [ 8332.703691][ T253] netlink_sendmsg+0x723/0xbe0 [ 8332.703691][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8332.703691][ T253] ___sys_sendmsg+0xee/0x170 [ 8332.703691][ T253] __sys_sendmsg+0xcd/0x170 [ 8332.703691][ T253] do_syscall_64+0xc6/0x1e0 [ 8332.703691][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8332.703691][ T253] [ 8332.705932][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8332.705932][ T253] netdev_get_by_index+0x5e/0x80 [ 8332.705932][ T253] fib6_nh_init+0x3d8/0x1580 [ 8332.705932][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8332.705932][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8332.705932][ T253] ipv6_add_addr+0x411/0x2000 [ 8332.705932][ T253] inet6_addr_add+0x30e/0xa40 [ 8332.705932][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8332.705932][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8332.705932][ T253] netlink_rcv_skb+0x130/0x360 [ 8332.705932][ T253] netlink_unicast+0x449/0x710 [ 8332.705932][ T253] netlink_sendmsg+0x723/0xbe0 [ 8332.705932][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8332.705932][ T253] ___sys_sendmsg+0xee/0x170 [ 8332.705932][ T253] __sys_sendmsg+0xcd/0x170 [ 8332.705932][ T253] do_syscall_64+0xc6/0x1e0 [ 8332.705932][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8332.705932][ T253] [ 8332.708172][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8332.708172][ T253] netdev_get_by_index+0x5e/0x80 [ 8332.708172][ T253] fib6_nh_init+0x3d8/0x1580 [ 8332.708172][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8332.708172][ T253] ip6_route_add+0x1c/0x140 [ 8332.708172][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8332.708172][ T253] addrconf_add_dev+0xe2/0x170 [ 8332.708172][ T253] inet6_addr_add+0x12f/0xa40 [ 8332.708172][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8332.708172][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8332.708172][ T253] netlink_rcv_skb+0x130/0x360 [ 8332.708172][ T253] netlink_unicast+0x449/0x710 [ 8332.708172][ T253] netlink_sendmsg+0x723/0xbe0 [ 8332.708172][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8332.708172][ T253] ___sys_sendmsg+0xee/0x170 [ 8332.708172][ T253] __sys_sendmsg+0xcd/0x170 [ 8332.708172][ T253] do_syscall_64+0xc6/0x1e0 [ 8332.708172][ T253] [ 8332.710375][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8332.710375][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8332.710375][ T253] ipv6_find_idev+0x102/0x170 [ 8332.710375][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8332.710375][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8332.710375][ T253] netlink_rcv_skb+0x130/0x360 [ 8332.710375][ T253] netlink_unicast+0x449/0x710 [ 8332.710375][ T253] netlink_sendmsg+0x723/0xbe0 [ 8332.710375][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8332.710375][ T253] ___sys_sendmsg+0xee/0x170 [ 8332.710375][ T253] __sys_sendmsg+0xcd/0x170 [ 8332.710375][ T253] do_syscall_64+0xc6/0x1e0 [ 8332.710375][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8332.710375][ T253] [ 8332.712116][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8332.712116][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8332.712116][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8332.712116][ T253] ipv6_find_idev+0x102/0x170 [ 8332.712116][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8332.712116][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8332.712116][ T253] netlink_rcv_skb+0x130/0x360 [ 8332.712116][ T253] netlink_unicast+0x449/0x710 [ 8332.712116][ T253] netlink_sendmsg+0x723/0xbe0 [ 8332.712116][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8332.712116][ T253] ___sys_sendmsg+0xee/0x170 [ 8332.712116][ T253] __sys_sendmsg+0xcd/0x170 [ 8332.712116][ T253] do_syscall_64+0xc6/0x1e0 [ 8332.712116][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8332.712116][ T253] [ 8342.914324][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8342.914751][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8342.914751][ T253] dst_init+0x84/0x4a0 [ 8342.914751][ T253] dst_alloc+0x97/0x150 [ 8342.914751][ T253] ip6_dst_alloc+0x23/0x90 [ 8342.914751][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8342.914751][ T253] ip6_pol_route+0x56f/0x840 [ 8342.914751][ T253] fib6_rule_lookup+0x334/0x630 [ 8342.914751][ T253] ip6_route_output_flags+0x259/0x480 [ 8342.914751][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8342.914751][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8342.914751][ T253] netlink_rcv_skb+0x130/0x360 [ 8342.914751][ T253] netlink_unicast+0x449/0x710 [ 8342.914751][ T253] netlink_sendmsg+0x723/0xbe0 [ 8342.914751][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8342.914751][ T253] ___sys_sendmsg+0xee/0x170 [ 8342.914751][ T253] __sys_sendmsg+0xcd/0x170 [ 8342.914751][ T253] do_syscall_64+0xc6/0x1e0 [ 8342.914751][ T253] [ 8342.916943][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8342.916943][ T253] netdev_get_by_index+0x5e/0x80 [ 8342.916943][ T253] fib6_nh_init+0x3d8/0x1580 [ 8342.916943][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8342.916943][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8342.916943][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8342.916943][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8342.916943][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8342.916943][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8342.916943][ T253] addrconf_dad_begin+0x310/0x670 [ 8342.916943][ T253] addrconf_dad_work+0x10b/0xab0 [ 8342.916943][ T253] process_one_work+0x84d/0x18a0 [ 8342.916943][ T253] worker_thread+0x587/0xd30 [ 8342.916943][ T253] kthread+0x28a/0x350 [ 8342.916943][ T253] ret_from_fork+0x31/0x70 [ 8342.916943][ T253] ret_from_fork_asm+0x1a/0x30 [ 8342.916943][ T253] [ 8342.919089][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8342.919089][ T253] netdev_get_by_index+0x5e/0x80 [ 8342.919089][ T253] fib6_nh_init+0x3d8/0x1580 [ 8342.919089][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8342.919089][ T253] ip6_route_add+0x1c/0x140 [ 8342.919089][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8342.919089][ T253] inet6_addr_add+0x4f8/0xa40 [ 8342.919089][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8342.919089][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8342.919089][ T253] netlink_rcv_skb+0x130/0x360 [ 8342.919089][ T253] netlink_unicast+0x449/0x710 [ 8342.919089][ T253] netlink_sendmsg+0x723/0xbe0 [ 8342.919089][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8342.919089][ T253] ___sys_sendmsg+0xee/0x170 [ 8342.919089][ T253] __sys_sendmsg+0xcd/0x170 [ 8342.919089][ T253] do_syscall_64+0xc6/0x1e0 [ 8342.919089][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8342.919089][ T253] [ 8342.921345][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8342.921345][ T253] netdev_get_by_index+0x5e/0x80 [ 8342.921345][ T253] fib6_nh_init+0x3d8/0x1580 [ 8342.921345][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8342.921345][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8342.921345][ T253] ipv6_add_addr+0x411/0x2000 [ 8342.921345][ T253] inet6_addr_add+0x30e/0xa40 [ 8342.921345][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8342.921345][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8342.921345][ T253] netlink_rcv_skb+0x130/0x360 [ 8342.921345][ T253] netlink_unicast+0x449/0x710 [ 8342.921345][ T253] netlink_sendmsg+0x723/0xbe0 [ 8342.921345][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8342.921345][ T253] ___sys_sendmsg+0xee/0x170 [ 8342.921345][ T253] __sys_sendmsg+0xcd/0x170 [ 8342.921345][ T253] do_syscall_64+0xc6/0x1e0 [ 8342.921345][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8342.921345][ T253] [ 8342.923594][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8342.923594][ T253] netdev_get_by_index+0x5e/0x80 [ 8342.923594][ T253] fib6_nh_init+0x3d8/0x1580 [ 8342.923594][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8342.923594][ T253] ip6_route_add+0x1c/0x140 [ 8342.923594][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8342.923594][ T253] addrconf_add_dev+0xe2/0x170 [ 8342.923594][ T253] inet6_addr_add+0x12f/0xa40 [ 8342.923594][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8342.923594][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8342.923594][ T253] netlink_rcv_skb+0x130/0x360 [ 8342.923594][ T253] netlink_unicast+0x449/0x710 [ 8342.923594][ T253] netlink_sendmsg+0x723/0xbe0 [ 8342.923594][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8342.923594][ T253] ___sys_sendmsg+0xee/0x170 [ 8342.923594][ T253] __sys_sendmsg+0xcd/0x170 [ 8342.923594][ T253] do_syscall_64+0xc6/0x1e0 [ 8342.923594][ T253] [ 8342.925803][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8342.925803][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8342.925803][ T253] ipv6_find_idev+0x102/0x170 [ 8342.925803][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8342.925803][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8342.925803][ T253] netlink_rcv_skb+0x130/0x360 [ 8342.925803][ T253] netlink_unicast+0x449/0x710 [ 8342.925803][ T253] netlink_sendmsg+0x723/0xbe0 [ 8342.925803][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8342.925803][ T253] ___sys_sendmsg+0xee/0x170 [ 8342.925803][ T253] __sys_sendmsg+0xcd/0x170 [ 8342.925803][ T253] do_syscall_64+0xc6/0x1e0 [ 8342.925803][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8342.925803][ T253] [ 8342.927523][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8342.927523][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8342.927523][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8342.927523][ T253] ipv6_find_idev+0x102/0x170 [ 8342.927523][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8342.927523][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8342.927523][ T253] netlink_rcv_skb+0x130/0x360 [ 8342.927523][ T253] netlink_unicast+0x449/0x710 [ 8342.927523][ T253] netlink_sendmsg+0x723/0xbe0 [ 8342.927523][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8342.927523][ T253] ___sys_sendmsg+0xee/0x170 [ 8342.927523][ T253] __sys_sendmsg+0xcd/0x170 [ 8342.927523][ T253] do_syscall_64+0xc6/0x1e0 [ 8342.927523][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8342.927523][ T253] [ 8353.170346][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8353.170836][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8353.170836][ T253] dst_init+0x84/0x4a0 [ 8353.170836][ T253] dst_alloc+0x97/0x150 [ 8353.170836][ T253] ip6_dst_alloc+0x23/0x90 [ 8353.170836][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8353.170836][ T253] ip6_pol_route+0x56f/0x840 [ 8353.170836][ T253] fib6_rule_lookup+0x334/0x630 [ 8353.170836][ T253] ip6_route_output_flags+0x259/0x480 [ 8353.170836][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8353.170836][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8353.170836][ T253] netlink_rcv_skb+0x130/0x360 [ 8353.170836][ T253] netlink_unicast+0x449/0x710 [ 8353.170836][ T253] netlink_sendmsg+0x723/0xbe0 [ 8353.170836][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8353.170836][ T253] ___sys_sendmsg+0xee/0x170 [ 8353.170836][ T253] __sys_sendmsg+0xcd/0x170 [ 8353.170836][ T253] do_syscall_64+0xc6/0x1e0 [ 8353.170836][ T253] [ 8353.173053][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8353.173053][ T253] netdev_get_by_index+0x5e/0x80 [ 8353.173053][ T253] fib6_nh_init+0x3d8/0x1580 [ 8353.173053][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8353.173053][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8353.173053][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8353.173053][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8353.173053][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8353.173053][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8353.173053][ T253] addrconf_dad_begin+0x310/0x670 [ 8353.173053][ T253] addrconf_dad_work+0x10b/0xab0 [ 8353.173053][ T253] process_one_work+0x84d/0x18a0 [ 8353.173053][ T253] worker_thread+0x587/0xd30 [ 8353.173053][ T253] kthread+0x28a/0x350 [ 8353.173053][ T253] ret_from_fork+0x31/0x70 [ 8353.173053][ T253] ret_from_fork_asm+0x1a/0x30 [ 8353.173053][ T253] [ 8353.175205][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8353.175205][ T253] netdev_get_by_index+0x5e/0x80 [ 8353.175205][ T253] fib6_nh_init+0x3d8/0x1580 [ 8353.175205][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8353.175205][ T253] ip6_route_add+0x1c/0x140 [ 8353.175205][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8353.175205][ T253] inet6_addr_add+0x4f8/0xa40 [ 8353.175205][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8353.175205][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8353.175205][ T253] netlink_rcv_skb+0x130/0x360 [ 8353.175205][ T253] netlink_unicast+0x449/0x710 [ 8353.175205][ T253] netlink_sendmsg+0x723/0xbe0 [ 8353.175205][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8353.175205][ T253] ___sys_sendmsg+0xee/0x170 [ 8353.175205][ T253] __sys_sendmsg+0xcd/0x170 [ 8353.175205][ T253] do_syscall_64+0xc6/0x1e0 [ 8353.175205][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8353.175205][ T253] [ 8353.177450][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8353.177450][ T253] netdev_get_by_index+0x5e/0x80 [ 8353.177450][ T253] fib6_nh_init+0x3d8/0x1580 [ 8353.177450][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8353.177450][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8353.177450][ T253] ipv6_add_addr+0x411/0x2000 [ 8353.177450][ T253] inet6_addr_add+0x30e/0xa40 [ 8353.177450][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8353.177450][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8353.177450][ T253] netlink_rcv_skb+0x130/0x360 [ 8353.177450][ T253] netlink_unicast+0x449/0x710 [ 8353.177450][ T253] netlink_sendmsg+0x723/0xbe0 [ 8353.177450][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8353.177450][ T253] ___sys_sendmsg+0xee/0x170 [ 8353.177450][ T253] __sys_sendmsg+0xcd/0x170 [ 8353.177450][ T253] do_syscall_64+0xc6/0x1e0 [ 8353.177450][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8353.177450][ T253] [ 8353.179700][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8353.179700][ T253] netdev_get_by_index+0x5e/0x80 [ 8353.179700][ T253] fib6_nh_init+0x3d8/0x1580 [ 8353.179700][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8353.179700][ T253] ip6_route_add+0x1c/0x140 [ 8353.179700][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8353.179700][ T253] addrconf_add_dev+0xe2/0x170 [ 8353.179700][ T253] inet6_addr_add+0x12f/0xa40 [ 8353.179700][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8353.179700][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8353.179700][ T253] netlink_rcv_skb+0x130/0x360 [ 8353.179700][ T253] netlink_unicast+0x449/0x710 [ 8353.179700][ T253] netlink_sendmsg+0x723/0xbe0 [ 8353.179700][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8353.179700][ T253] ___sys_sendmsg+0xee/0x170 [ 8353.179700][ T253] __sys_sendmsg+0xcd/0x170 [ 8353.179700][ T253] do_syscall_64+0xc6/0x1e0 [ 8353.179700][ T253] [ 8353.181912][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8353.181912][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8353.181912][ T253] ipv6_find_idev+0x102/0x170 [ 8353.181912][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8353.181912][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8353.181912][ T253] netlink_rcv_skb+0x130/0x360 [ 8353.181912][ T253] netlink_unicast+0x449/0x710 [ 8353.181912][ T253] netlink_sendmsg+0x723/0xbe0 [ 8353.181912][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8353.181912][ T253] ___sys_sendmsg+0xee/0x170 [ 8353.181912][ T253] __sys_sendmsg+0xcd/0x170 [ 8353.181912][ T253] do_syscall_64+0xc6/0x1e0 [ 8353.181912][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8353.181912][ T253] [ 8353.183637][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8353.183637][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8353.183637][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8353.183637][ T253] ipv6_find_idev+0x102/0x170 [ 8353.183637][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8353.183637][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8353.183637][ T253] netlink_rcv_skb+0x130/0x360 [ 8353.183637][ T253] netlink_unicast+0x449/0x710 [ 8353.183637][ T253] netlink_sendmsg+0x723/0xbe0 [ 8353.183637][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8353.183637][ T253] ___sys_sendmsg+0xee/0x170 [ 8353.183637][ T253] __sys_sendmsg+0xcd/0x170 [ 8353.183637][ T253] do_syscall_64+0xc6/0x1e0 [ 8353.183637][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8353.183637][ T253] [ 8363.426323][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8363.426822][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8363.426822][ T253] dst_init+0x84/0x4a0 [ 8363.426822][ T253] dst_alloc+0x97/0x150 [ 8363.426822][ T253] ip6_dst_alloc+0x23/0x90 [ 8363.426822][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8363.426822][ T253] ip6_pol_route+0x56f/0x840 [ 8363.426822][ T253] fib6_rule_lookup+0x334/0x630 [ 8363.426822][ T253] ip6_route_output_flags+0x259/0x480 [ 8363.426822][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8363.426822][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8363.426822][ T253] netlink_rcv_skb+0x130/0x360 [ 8363.426822][ T253] netlink_unicast+0x449/0x710 [ 8363.426822][ T253] netlink_sendmsg+0x723/0xbe0 [ 8363.426822][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8363.426822][ T253] ___sys_sendmsg+0xee/0x170 [ 8363.426822][ T253] __sys_sendmsg+0xcd/0x170 [ 8363.426822][ T253] do_syscall_64+0xc6/0x1e0 [ 8363.426822][ T253] [ 8363.429042][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8363.429042][ T253] netdev_get_by_index+0x5e/0x80 [ 8363.429042][ T253] fib6_nh_init+0x3d8/0x1580 [ 8363.429042][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8363.429042][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8363.429042][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8363.429042][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8363.429042][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8363.429042][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8363.429042][ T253] addrconf_dad_begin+0x310/0x670 [ 8363.429042][ T253] addrconf_dad_work+0x10b/0xab0 [ 8363.429042][ T253] process_one_work+0x84d/0x18a0 [ 8363.429042][ T253] worker_thread+0x587/0xd30 [ 8363.429042][ T253] kthread+0x28a/0x350 [ 8363.429042][ T253] ret_from_fork+0x31/0x70 [ 8363.429042][ T253] ret_from_fork_asm+0x1a/0x30 [ 8363.429042][ T253] [ 8363.431219][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8363.431219][ T253] netdev_get_by_index+0x5e/0x80 [ 8363.431219][ T253] fib6_nh_init+0x3d8/0x1580 [ 8363.431219][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8363.431219][ T253] ip6_route_add+0x1c/0x140 [ 8363.431219][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8363.431219][ T253] inet6_addr_add+0x4f8/0xa40 [ 8363.431219][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8363.431219][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8363.431219][ T253] netlink_rcv_skb+0x130/0x360 [ 8363.431219][ T253] netlink_unicast+0x449/0x710 [ 8363.431219][ T253] netlink_sendmsg+0x723/0xbe0 [ 8363.431219][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8363.431219][ T253] ___sys_sendmsg+0xee/0x170 [ 8363.431219][ T253] __sys_sendmsg+0xcd/0x170 [ 8363.431219][ T253] do_syscall_64+0xc6/0x1e0 [ 8363.431219][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8363.431219][ T253] [ 8363.433488][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8363.433488][ T253] netdev_get_by_index+0x5e/0x80 [ 8363.433488][ T253] fib6_nh_init+0x3d8/0x1580 [ 8363.433488][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8363.433488][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8363.433488][ T253] ipv6_add_addr+0x411/0x2000 [ 8363.433488][ T253] inet6_addr_add+0x30e/0xa40 [ 8363.433488][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8363.433488][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8363.433488][ T253] netlink_rcv_skb+0x130/0x360 [ 8363.433488][ T253] netlink_unicast+0x449/0x710 [ 8363.433488][ T253] netlink_sendmsg+0x723/0xbe0 [ 8363.433488][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8363.433488][ T253] ___sys_sendmsg+0xee/0x170 [ 8363.433488][ T253] __sys_sendmsg+0xcd/0x170 [ 8363.433488][ T253] do_syscall_64+0xc6/0x1e0 [ 8363.433488][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8363.433488][ T253] [ 8363.435758][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8363.435758][ T253] netdev_get_by_index+0x5e/0x80 [ 8363.435758][ T253] fib6_nh_init+0x3d8/0x1580 [ 8363.435758][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8363.435758][ T253] ip6_route_add+0x1c/0x140 [ 8363.435758][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8363.435758][ T253] addrconf_add_dev+0xe2/0x170 [ 8363.435758][ T253] inet6_addr_add+0x12f/0xa40 [ 8363.435758][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8363.435758][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8363.435758][ T253] netlink_rcv_skb+0x130/0x360 [ 8363.435758][ T253] netlink_unicast+0x449/0x710 [ 8363.435758][ T253] netlink_sendmsg+0x723/0xbe0 [ 8363.435758][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8363.435758][ T253] ___sys_sendmsg+0xee/0x170 [ 8363.435758][ T253] __sys_sendmsg+0xcd/0x170 [ 8363.435758][ T253] do_syscall_64+0xc6/0x1e0 [ 8363.435758][ T253] [ 8363.438048][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8363.438048][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8363.438048][ T253] ipv6_find_idev+0x102/0x170 [ 8363.438048][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8363.438048][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8363.438048][ T253] netlink_rcv_skb+0x130/0x360 [ 8363.438048][ T253] netlink_unicast+0x449/0x710 [ 8363.438048][ T253] netlink_sendmsg+0x723/0xbe0 [ 8363.438048][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8363.438048][ T253] ___sys_sendmsg+0xee/0x170 [ 8363.438048][ T253] __sys_sendmsg+0xcd/0x170 [ 8363.438048][ T253] do_syscall_64+0xc6/0x1e0 [ 8363.438048][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8363.438048][ T253] [ 8363.439781][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8363.439781][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8363.439781][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8363.439781][ T253] ipv6_find_idev+0x102/0x170 [ 8363.439781][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8363.439781][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8363.439781][ T253] netlink_rcv_skb+0x130/0x360 [ 8363.439781][ T253] netlink_unicast+0x449/0x710 [ 8363.439781][ T253] netlink_sendmsg+0x723/0xbe0 [ 8363.439781][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8363.439781][ T253] ___sys_sendmsg+0xee/0x170 [ 8363.439781][ T253] __sys_sendmsg+0xcd/0x170 [ 8363.439781][ T253] do_syscall_64+0xc6/0x1e0 [ 8363.439781][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8363.439781][ T253] [ 8373.474340][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8373.474836][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8373.474836][ T253] dst_init+0x84/0x4a0 [ 8373.474836][ T253] dst_alloc+0x97/0x150 [ 8373.474836][ T253] ip6_dst_alloc+0x23/0x90 [ 8373.474836][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8373.474836][ T253] ip6_pol_route+0x56f/0x840 [ 8373.474836][ T253] fib6_rule_lookup+0x334/0x630 [ 8373.474836][ T253] ip6_route_output_flags+0x259/0x480 [ 8373.474836][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8373.474836][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8373.474836][ T253] netlink_rcv_skb+0x130/0x360 [ 8373.474836][ T253] netlink_unicast+0x449/0x710 [ 8373.474836][ T253] netlink_sendmsg+0x723/0xbe0 [ 8373.474836][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8373.474836][ T253] ___sys_sendmsg+0xee/0x170 [ 8373.474836][ T253] __sys_sendmsg+0xcd/0x170 [ 8373.474836][ T253] do_syscall_64+0xc6/0x1e0 [ 8373.474836][ T253] [ 8373.477046][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8373.477046][ T253] netdev_get_by_index+0x5e/0x80 [ 8373.477046][ T253] fib6_nh_init+0x3d8/0x1580 [ 8373.477046][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8373.477046][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8373.477046][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8373.477046][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8373.477046][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8373.477046][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8373.477046][ T253] addrconf_dad_begin+0x310/0x670 [ 8373.477046][ T253] addrconf_dad_work+0x10b/0xab0 [ 8373.477046][ T253] process_one_work+0x84d/0x18a0 [ 8373.477046][ T253] worker_thread+0x587/0xd30 [ 8373.477046][ T253] kthread+0x28a/0x350 [ 8373.477046][ T253] ret_from_fork+0x31/0x70 [ 8373.477046][ T253] ret_from_fork_asm+0x1a/0x30 [ 8373.477046][ T253] [ 8373.479205][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8373.479205][ T253] netdev_get_by_index+0x5e/0x80 [ 8373.479205][ T253] fib6_nh_init+0x3d8/0x1580 [ 8373.479205][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8373.479205][ T253] ip6_route_add+0x1c/0x140 [ 8373.479205][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8373.479205][ T253] inet6_addr_add+0x4f8/0xa40 [ 8373.479205][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8373.479205][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8373.479205][ T253] netlink_rcv_skb+0x130/0x360 [ 8373.479205][ T253] netlink_unicast+0x449/0x710 [ 8373.479205][ T253] netlink_sendmsg+0x723/0xbe0 [ 8373.479205][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8373.479205][ T253] ___sys_sendmsg+0xee/0x170 [ 8373.479205][ T253] __sys_sendmsg+0xcd/0x170 [ 8373.479205][ T253] do_syscall_64+0xc6/0x1e0 [ 8373.479205][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8373.479205][ T253] [ 8373.481478][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8373.481478][ T253] netdev_get_by_index+0x5e/0x80 [ 8373.481478][ T253] fib6_nh_init+0x3d8/0x1580 [ 8373.481478][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8373.481478][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8373.481478][ T253] ipv6_add_addr+0x411/0x2000 [ 8373.481478][ T253] inet6_addr_add+0x30e/0xa40 [ 8373.481478][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8373.481478][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8373.481478][ T253] netlink_rcv_skb+0x130/0x360 [ 8373.481478][ T253] netlink_unicast+0x449/0x710 [ 8373.481478][ T253] netlink_sendmsg+0x723/0xbe0 [ 8373.481478][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8373.481478][ T253] ___sys_sendmsg+0xee/0x170 [ 8373.481478][ T253] __sys_sendmsg+0xcd/0x170 [ 8373.481478][ T253] do_syscall_64+0xc6/0x1e0 [ 8373.481478][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8373.481478][ T253] [ 8373.483739][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8373.483739][ T253] netdev_get_by_index+0x5e/0x80 [ 8373.483739][ T253] fib6_nh_init+0x3d8/0x1580 [ 8373.483739][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8373.483739][ T253] ip6_route_add+0x1c/0x140 [ 8373.483739][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8373.483739][ T253] addrconf_add_dev+0xe2/0x170 [ 8373.483739][ T253] inet6_addr_add+0x12f/0xa40 [ 8373.483739][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8373.483739][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8373.483739][ T253] netlink_rcv_skb+0x130/0x360 [ 8373.483739][ T253] netlink_unicast+0x449/0x710 [ 8373.483739][ T253] netlink_sendmsg+0x723/0xbe0 [ 8373.483739][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8373.483739][ T253] ___sys_sendmsg+0xee/0x170 [ 8373.483739][ T253] __sys_sendmsg+0xcd/0x170 [ 8373.483739][ T253] do_syscall_64+0xc6/0x1e0 [ 8373.483739][ T253] [ 8373.485952][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8373.485952][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8373.485952][ T253] ipv6_find_idev+0x102/0x170 [ 8373.485952][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8373.485952][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8373.485952][ T253] netlink_rcv_skb+0x130/0x360 [ 8373.485952][ T253] netlink_unicast+0x449/0x710 [ 8373.485952][ T253] netlink_sendmsg+0x723/0xbe0 [ 8373.485952][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8373.485952][ T253] ___sys_sendmsg+0xee/0x170 [ 8373.485952][ T253] __sys_sendmsg+0xcd/0x170 [ 8373.485952][ T253] do_syscall_64+0xc6/0x1e0 [ 8373.485952][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8373.485952][ T253] [ 8373.487678][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8373.487678][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8373.487678][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8373.487678][ T253] ipv6_find_idev+0x102/0x170 [ 8373.487678][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8373.487678][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8373.487678][ T253] netlink_rcv_skb+0x130/0x360 [ 8373.487678][ T253] netlink_unicast+0x449/0x710 [ 8373.487678][ T253] netlink_sendmsg+0x723/0xbe0 [ 8373.487678][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8373.487678][ T253] ___sys_sendmsg+0xee/0x170 [ 8373.487678][ T253] __sys_sendmsg+0xcd/0x170 [ 8373.487678][ T253] do_syscall_64+0xc6/0x1e0 [ 8373.487678][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8373.487678][ T253] [ 8383.490320][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8383.490808][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8383.490808][ T253] dst_init+0x84/0x4a0 [ 8383.490808][ T253] dst_alloc+0x97/0x150 [ 8383.490808][ T253] ip6_dst_alloc+0x23/0x90 [ 8383.490808][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8383.490808][ T253] ip6_pol_route+0x56f/0x840 [ 8383.490808][ T253] fib6_rule_lookup+0x334/0x630 [ 8383.490808][ T253] ip6_route_output_flags+0x259/0x480 [ 8383.490808][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8383.490808][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8383.490808][ T253] netlink_rcv_skb+0x130/0x360 [ 8383.490808][ T253] netlink_unicast+0x449/0x710 [ 8383.490808][ T253] netlink_sendmsg+0x723/0xbe0 [ 8383.490808][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8383.490808][ T253] ___sys_sendmsg+0xee/0x170 [ 8383.490808][ T253] __sys_sendmsg+0xcd/0x170 [ 8383.490808][ T253] do_syscall_64+0xc6/0x1e0 [ 8383.490808][ T253] [ 8383.493036][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8383.493036][ T253] netdev_get_by_index+0x5e/0x80 [ 8383.493036][ T253] fib6_nh_init+0x3d8/0x1580 [ 8383.493036][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8383.493036][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8383.493036][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8383.493036][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8383.493036][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8383.493036][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8383.493036][ T253] addrconf_dad_begin+0x310/0x670 [ 8383.493036][ T253] addrconf_dad_work+0x10b/0xab0 [ 8383.493036][ T253] process_one_work+0x84d/0x18a0 [ 8383.493036][ T253] worker_thread+0x587/0xd30 [ 8383.493036][ T253] kthread+0x28a/0x350 [ 8383.493036][ T253] ret_from_fork+0x31/0x70 [ 8383.493036][ T253] ret_from_fork_asm+0x1a/0x30 [ 8383.493036][ T253] [ 8383.495202][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8383.495202][ T253] netdev_get_by_index+0x5e/0x80 [ 8383.495202][ T253] fib6_nh_init+0x3d8/0x1580 [ 8383.495202][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8383.495202][ T253] ip6_route_add+0x1c/0x140 [ 8383.495202][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8383.495202][ T253] inet6_addr_add+0x4f8/0xa40 [ 8383.495202][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8383.495202][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8383.495202][ T253] netlink_rcv_skb+0x130/0x360 [ 8383.495202][ T253] netlink_unicast+0x449/0x710 [ 8383.495202][ T253] netlink_sendmsg+0x723/0xbe0 [ 8383.495202][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8383.495202][ T253] ___sys_sendmsg+0xee/0x170 [ 8383.495202][ T253] __sys_sendmsg+0xcd/0x170 [ 8383.495202][ T253] do_syscall_64+0xc6/0x1e0 [ 8383.495202][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8383.495202][ T253] [ 8383.497473][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8383.497473][ T253] netdev_get_by_index+0x5e/0x80 [ 8383.497473][ T253] fib6_nh_init+0x3d8/0x1580 [ 8383.497473][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8383.497473][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8383.497473][ T253] ipv6_add_addr+0x411/0x2000 [ 8383.497473][ T253] inet6_addr_add+0x30e/0xa40 [ 8383.497473][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8383.497473][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8383.497473][ T253] netlink_rcv_skb+0x130/0x360 [ 8383.497473][ T253] netlink_unicast+0x449/0x710 [ 8383.497473][ T253] netlink_sendmsg+0x723/0xbe0 [ 8383.497473][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8383.497473][ T253] ___sys_sendmsg+0xee/0x170 [ 8383.497473][ T253] __sys_sendmsg+0xcd/0x170 [ 8383.497473][ T253] do_syscall_64+0xc6/0x1e0 [ 8383.497473][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8383.497473][ T253] [ 8383.499730][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8383.499730][ T253] netdev_get_by_index+0x5e/0x80 [ 8383.499730][ T253] fib6_nh_init+0x3d8/0x1580 [ 8383.499730][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8383.499730][ T253] ip6_route_add+0x1c/0x140 [ 8383.499730][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8383.499730][ T253] addrconf_add_dev+0xe2/0x170 [ 8383.499730][ T253] inet6_addr_add+0x12f/0xa40 [ 8383.499730][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8383.499730][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8383.499730][ T253] netlink_rcv_skb+0x130/0x360 [ 8383.499730][ T253] netlink_unicast+0x449/0x710 [ 8383.499730][ T253] netlink_sendmsg+0x723/0xbe0 [ 8383.499730][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8383.499730][ T253] ___sys_sendmsg+0xee/0x170 [ 8383.499730][ T253] __sys_sendmsg+0xcd/0x170 [ 8383.499730][ T253] do_syscall_64+0xc6/0x1e0 [ 8383.499730][ T253] [ 8383.501949][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8383.501949][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8383.501949][ T253] ipv6_find_idev+0x102/0x170 [ 8383.501949][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8383.501949][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8383.501949][ T253] netlink_rcv_skb+0x130/0x360 [ 8383.501949][ T253] netlink_unicast+0x449/0x710 [ 8383.501949][ T253] netlink_sendmsg+0x723/0xbe0 [ 8383.501949][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8383.501949][ T253] ___sys_sendmsg+0xee/0x170 [ 8383.501949][ T253] __sys_sendmsg+0xcd/0x170 [ 8383.501949][ T253] do_syscall_64+0xc6/0x1e0 [ 8383.501949][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8383.501949][ T253] [ 8383.503684][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8383.503684][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8383.503684][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8383.503684][ T253] ipv6_find_idev+0x102/0x170 [ 8383.503684][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8383.503684][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8383.503684][ T253] netlink_rcv_skb+0x130/0x360 [ 8383.503684][ T253] netlink_unicast+0x449/0x710 [ 8383.503684][ T253] netlink_sendmsg+0x723/0xbe0 [ 8383.503684][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8383.503684][ T253] ___sys_sendmsg+0xee/0x170 [ 8383.503684][ T253] __sys_sendmsg+0xcd/0x170 [ 8383.503684][ T253] do_syscall_64+0xc6/0x1e0 [ 8383.503684][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8383.503684][ T253] [ 8393.538323][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8393.538831][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8393.538831][ T253] dst_init+0x84/0x4a0 [ 8393.538831][ T253] dst_alloc+0x97/0x150 [ 8393.538831][ T253] ip6_dst_alloc+0x23/0x90 [ 8393.538831][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8393.538831][ T253] ip6_pol_route+0x56f/0x840 [ 8393.538831][ T253] fib6_rule_lookup+0x334/0x630 [ 8393.538831][ T253] ip6_route_output_flags+0x259/0x480 [ 8393.538831][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8393.538831][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8393.538831][ T253] netlink_rcv_skb+0x130/0x360 [ 8393.538831][ T253] netlink_unicast+0x449/0x710 [ 8393.538831][ T253] netlink_sendmsg+0x723/0xbe0 [ 8393.538831][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8393.538831][ T253] ___sys_sendmsg+0xee/0x170 [ 8393.538831][ T253] __sys_sendmsg+0xcd/0x170 [ 8393.538831][ T253] do_syscall_64+0xc6/0x1e0 [ 8393.538831][ T253] [ 8393.541061][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8393.541061][ T253] netdev_get_by_index+0x5e/0x80 [ 8393.541061][ T253] fib6_nh_init+0x3d8/0x1580 [ 8393.541061][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8393.541061][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8393.541061][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8393.541061][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8393.541061][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8393.541061][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8393.541061][ T253] addrconf_dad_begin+0x310/0x670 [ 8393.541061][ T253] addrconf_dad_work+0x10b/0xab0 [ 8393.541061][ T253] process_one_work+0x84d/0x18a0 [ 8393.541061][ T253] worker_thread+0x587/0xd30 [ 8393.541061][ T253] kthread+0x28a/0x350 [ 8393.541061][ T253] ret_from_fork+0x31/0x70 [ 8393.541061][ T253] ret_from_fork_asm+0x1a/0x30 [ 8393.541061][ T253] [ 8393.543219][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8393.543219][ T253] netdev_get_by_index+0x5e/0x80 [ 8393.543219][ T253] fib6_nh_init+0x3d8/0x1580 [ 8393.543219][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8393.543219][ T253] ip6_route_add+0x1c/0x140 [ 8393.543219][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8393.543219][ T253] inet6_addr_add+0x4f8/0xa40 [ 8393.543219][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8393.543219][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8393.543219][ T253] netlink_rcv_skb+0x130/0x360 [ 8393.543219][ T253] netlink_unicast+0x449/0x710 [ 8393.543219][ T253] netlink_sendmsg+0x723/0xbe0 [ 8393.543219][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8393.543219][ T253] ___sys_sendmsg+0xee/0x170 [ 8393.543219][ T253] __sys_sendmsg+0xcd/0x170 [ 8393.543219][ T253] do_syscall_64+0xc6/0x1e0 [ 8393.543219][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8393.543219][ T253] [ 8393.545474][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8393.545474][ T253] netdev_get_by_index+0x5e/0x80 [ 8393.545474][ T253] fib6_nh_init+0x3d8/0x1580 [ 8393.545474][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8393.545474][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8393.545474][ T253] ipv6_add_addr+0x411/0x2000 [ 8393.545474][ T253] inet6_addr_add+0x30e/0xa40 [ 8393.545474][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8393.545474][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8393.545474][ T253] netlink_rcv_skb+0x130/0x360 [ 8393.545474][ T253] netlink_unicast+0x449/0x710 [ 8393.545474][ T253] netlink_sendmsg+0x723/0xbe0 [ 8393.545474][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8393.545474][ T253] ___sys_sendmsg+0xee/0x170 [ 8393.545474][ T253] __sys_sendmsg+0xcd/0x170 [ 8393.545474][ T253] do_syscall_64+0xc6/0x1e0 [ 8393.545474][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8393.545474][ T253] [ 8393.547749][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8393.547749][ T253] netdev_get_by_index+0x5e/0x80 [ 8393.547749][ T253] fib6_nh_init+0x3d8/0x1580 [ 8393.547749][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8393.547749][ T253] ip6_route_add+0x1c/0x140 [ 8393.547749][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8393.547749][ T253] addrconf_add_dev+0xe2/0x170 [ 8393.547749][ T253] inet6_addr_add+0x12f/0xa40 [ 8393.547749][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8393.547749][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8393.547749][ T253] netlink_rcv_skb+0x130/0x360 [ 8393.547749][ T253] netlink_unicast+0x449/0x710 [ 8393.547749][ T253] netlink_sendmsg+0x723/0xbe0 [ 8393.547749][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8393.547749][ T253] ___sys_sendmsg+0xee/0x170 [ 8393.547749][ T253] __sys_sendmsg+0xcd/0x170 [ 8393.547749][ T253] do_syscall_64+0xc6/0x1e0 [ 8393.547749][ T253] [ 8393.549964][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8393.549964][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8393.549964][ T253] ipv6_find_idev+0x102/0x170 [ 8393.549964][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8393.549964][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8393.549964][ T253] netlink_rcv_skb+0x130/0x360 [ 8393.549964][ T253] netlink_unicast+0x449/0x710 [ 8393.549964][ T253] netlink_sendmsg+0x723/0xbe0 [ 8393.549964][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8393.549964][ T253] ___sys_sendmsg+0xee/0x170 [ 8393.549964][ T253] __sys_sendmsg+0xcd/0x170 [ 8393.549964][ T253] do_syscall_64+0xc6/0x1e0 [ 8393.549964][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8393.549964][ T253] [ 8393.551712][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8393.551712][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8393.551712][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8393.551712][ T253] ipv6_find_idev+0x102/0x170 [ 8393.551712][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8393.551712][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8393.551712][ T253] netlink_rcv_skb+0x130/0x360 [ 8393.551712][ T253] netlink_unicast+0x449/0x710 [ 8393.551712][ T253] netlink_sendmsg+0x723/0xbe0 [ 8393.551712][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8393.551712][ T253] ___sys_sendmsg+0xee/0x170 [ 8393.551712][ T253] __sys_sendmsg+0xcd/0x170 [ 8393.551712][ T253] do_syscall_64+0xc6/0x1e0 [ 8393.551712][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8393.551712][ T253] [ 8403.802386][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8403.802878][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8403.802878][ T253] dst_init+0x84/0x4a0 [ 8403.802878][ T253] dst_alloc+0x97/0x150 [ 8403.802878][ T253] ip6_dst_alloc+0x23/0x90 [ 8403.802878][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8403.802878][ T253] ip6_pol_route+0x56f/0x840 [ 8403.802878][ T253] fib6_rule_lookup+0x334/0x630 [ 8403.802878][ T253] ip6_route_output_flags+0x259/0x480 [ 8403.802878][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8403.802878][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8403.802878][ T253] netlink_rcv_skb+0x130/0x360 [ 8403.802878][ T253] netlink_unicast+0x449/0x710 [ 8403.802878][ T253] netlink_sendmsg+0x723/0xbe0 [ 8403.802878][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8403.802878][ T253] ___sys_sendmsg+0xee/0x170 [ 8403.802878][ T253] __sys_sendmsg+0xcd/0x170 [ 8403.802878][ T253] do_syscall_64+0xc6/0x1e0 [ 8403.802878][ T253] [ 8403.805323][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8403.805323][ T253] netdev_get_by_index+0x5e/0x80 [ 8403.805323][ T253] fib6_nh_init+0x3d8/0x1580 [ 8403.805323][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8403.805323][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8403.805323][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8403.805323][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8403.805323][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8403.805323][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8403.805323][ T253] addrconf_dad_begin+0x310/0x670 [ 8403.805323][ T253] addrconf_dad_work+0x10b/0xab0 [ 8403.805323][ T253] process_one_work+0x84d/0x18a0 [ 8403.805323][ T253] worker_thread+0x587/0xd30 [ 8403.805323][ T253] kthread+0x28a/0x350 [ 8403.805323][ T253] ret_from_fork+0x31/0x70 [ 8403.805323][ T253] ret_from_fork_asm+0x1a/0x30 [ 8403.805323][ T253] [ 8403.807708][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8403.807708][ T253] netdev_get_by_index+0x5e/0x80 [ 8403.807708][ T253] fib6_nh_init+0x3d8/0x1580 [ 8403.807708][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8403.807708][ T253] ip6_route_add+0x1c/0x140 [ 8403.807708][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8403.807708][ T253] inet6_addr_add+0x4f8/0xa40 [ 8403.807708][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8403.807708][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8403.807708][ T253] netlink_rcv_skb+0x130/0x360 [ 8403.807708][ T253] netlink_unicast+0x449/0x710 [ 8403.807708][ T253] netlink_sendmsg+0x723/0xbe0 [ 8403.807708][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8403.807708][ T253] ___sys_sendmsg+0xee/0x170 [ 8403.807708][ T253] __sys_sendmsg+0xcd/0x170 [ 8403.807708][ T253] do_syscall_64+0xc6/0x1e0 [ 8403.807708][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8403.807708][ T253] [ 8403.810177][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8403.810177][ T253] netdev_get_by_index+0x5e/0x80 [ 8403.810177][ T253] fib6_nh_init+0x3d8/0x1580 [ 8403.810177][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8403.810177][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8403.810177][ T253] ipv6_add_addr+0x411/0x2000 [ 8403.810177][ T253] inet6_addr_add+0x30e/0xa40 [ 8403.810177][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8403.810177][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8403.810177][ T253] netlink_rcv_skb+0x130/0x360 [ 8403.810177][ T253] netlink_unicast+0x449/0x710 [ 8403.810177][ T253] netlink_sendmsg+0x723/0xbe0 [ 8403.810177][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8403.810177][ T253] ___sys_sendmsg+0xee/0x170 [ 8403.810177][ T253] __sys_sendmsg+0xcd/0x170 [ 8403.810177][ T253] do_syscall_64+0xc6/0x1e0 [ 8403.810177][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8403.810177][ T253] [ 8403.812675][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8403.812675][ T253] netdev_get_by_index+0x5e/0x80 [ 8403.812675][ T253] fib6_nh_init+0x3d8/0x1580 [ 8403.812675][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8403.812675][ T253] ip6_route_add+0x1c/0x140 [ 8403.812675][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8403.812675][ T253] addrconf_add_dev+0xe2/0x170 [ 8403.812675][ T253] inet6_addr_add+0x12f/0xa40 [ 8403.812675][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8403.812675][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8403.812675][ T253] netlink_rcv_skb+0x130/0x360 [ 8403.812675][ T253] netlink_unicast+0x449/0x710 [ 8403.812675][ T253] netlink_sendmsg+0x723/0xbe0 [ 8403.812675][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8403.812675][ T253] ___sys_sendmsg+0xee/0x170 [ 8403.812675][ T253] __sys_sendmsg+0xcd/0x170 [ 8403.812675][ T253] do_syscall_64+0xc6/0x1e0 [ 8403.812675][ T253] [ 8403.815110][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8403.815110][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8403.815110][ T253] ipv6_find_idev+0x102/0x170 [ 8403.815110][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8403.815110][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8403.815110][ T253] netlink_rcv_skb+0x130/0x360 [ 8403.815110][ T253] netlink_unicast+0x449/0x710 [ 8403.815110][ T253] netlink_sendmsg+0x723/0xbe0 [ 8403.815110][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8403.815110][ T253] ___sys_sendmsg+0xee/0x170 [ 8403.815110][ T253] __sys_sendmsg+0xcd/0x170 [ 8403.815110][ T253] do_syscall_64+0xc6/0x1e0 [ 8403.815110][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8403.815110][ T253] [ 8403.817012][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8403.817012][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8403.817012][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8403.817012][ T253] ipv6_find_idev+0x102/0x170 [ 8403.817012][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8403.817012][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8403.817012][ T253] netlink_rcv_skb+0x130/0x360 [ 8403.817012][ T253] netlink_unicast+0x449/0x710 [ 8403.817012][ T253] netlink_sendmsg+0x723/0xbe0 [ 8403.817012][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8403.817012][ T253] ___sys_sendmsg+0xee/0x170 [ 8403.817012][ T253] __sys_sendmsg+0xcd/0x170 [ 8403.817012][ T253] do_syscall_64+0xc6/0x1e0 [ 8403.817012][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8403.817012][ T253] [ 8413.890334][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8413.890821][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8413.890821][ T253] dst_init+0x84/0x4a0 [ 8413.890821][ T253] dst_alloc+0x97/0x150 [ 8413.890821][ T253] ip6_dst_alloc+0x23/0x90 [ 8413.890821][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8413.890821][ T253] ip6_pol_route+0x56f/0x840 [ 8413.890821][ T253] fib6_rule_lookup+0x334/0x630 [ 8413.890821][ T253] ip6_route_output_flags+0x259/0x480 [ 8413.890821][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8413.890821][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8413.890821][ T253] netlink_rcv_skb+0x130/0x360 [ 8413.890821][ T253] netlink_unicast+0x449/0x710 [ 8413.890821][ T253] netlink_sendmsg+0x723/0xbe0 [ 8413.890821][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8413.890821][ T253] ___sys_sendmsg+0xee/0x170 [ 8413.890821][ T253] __sys_sendmsg+0xcd/0x170 [ 8413.890821][ T253] do_syscall_64+0xc6/0x1e0 [ 8413.890821][ T253] [ 8413.893254][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8413.893254][ T253] netdev_get_by_index+0x5e/0x80 [ 8413.893254][ T253] fib6_nh_init+0x3d8/0x1580 [ 8413.893254][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8413.893254][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8413.893254][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8413.893254][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8413.893254][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8413.893254][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8413.893254][ T253] addrconf_dad_begin+0x310/0x670 [ 8413.893254][ T253] addrconf_dad_work+0x10b/0xab0 [ 8413.893254][ T253] process_one_work+0x84d/0x18a0 [ 8413.893254][ T253] worker_thread+0x587/0xd30 [ 8413.893254][ T253] kthread+0x28a/0x350 [ 8413.893254][ T253] ret_from_fork+0x31/0x70 [ 8413.893254][ T253] ret_from_fork_asm+0x1a/0x30 [ 8413.893254][ T253] [ 8413.895627][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8413.895627][ T253] netdev_get_by_index+0x5e/0x80 [ 8413.895627][ T253] fib6_nh_init+0x3d8/0x1580 [ 8413.895627][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8413.895627][ T253] ip6_route_add+0x1c/0x140 [ 8413.895627][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8413.895627][ T253] inet6_addr_add+0x4f8/0xa40 [ 8413.895627][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8413.895627][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8413.895627][ T253] netlink_rcv_skb+0x130/0x360 [ 8413.895627][ T253] netlink_unicast+0x449/0x710 [ 8413.895627][ T253] netlink_sendmsg+0x723/0xbe0 [ 8413.895627][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8413.895627][ T253] ___sys_sendmsg+0xee/0x170 [ 8413.895627][ T253] __sys_sendmsg+0xcd/0x170 [ 8413.895627][ T253] do_syscall_64+0xc6/0x1e0 [ 8413.895627][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8413.895627][ T253] [ 8413.898119][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8413.898119][ T253] netdev_get_by_index+0x5e/0x80 [ 8413.898119][ T253] fib6_nh_init+0x3d8/0x1580 [ 8413.898119][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8413.898119][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8413.898119][ T253] ipv6_add_addr+0x411/0x2000 [ 8413.898119][ T253] inet6_addr_add+0x30e/0xa40 [ 8413.898119][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8413.898119][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8413.898119][ T253] netlink_rcv_skb+0x130/0x360 [ 8413.898119][ T253] netlink_unicast+0x449/0x710 [ 8413.898119][ T253] netlink_sendmsg+0x723/0xbe0 [ 8413.898119][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8413.898119][ T253] ___sys_sendmsg+0xee/0x170 [ 8413.898119][ T253] __sys_sendmsg+0xcd/0x170 [ 8413.898119][ T253] do_syscall_64+0xc6/0x1e0 [ 8413.898119][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8413.898119][ T253] [ 8413.900603][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8413.900603][ T253] netdev_get_by_index+0x5e/0x80 [ 8413.900603][ T253] fib6_nh_init+0x3d8/0x1580 [ 8413.900603][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8413.900603][ T253] ip6_route_add+0x1c/0x140 [ 8413.900603][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8413.900603][ T253] addrconf_add_dev+0xe2/0x170 [ 8413.900603][ T253] inet6_addr_add+0x12f/0xa40 [ 8413.900603][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8413.900603][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8413.900603][ T253] netlink_rcv_skb+0x130/0x360 [ 8413.900603][ T253] netlink_unicast+0x449/0x710 [ 8413.900603][ T253] netlink_sendmsg+0x723/0xbe0 [ 8413.900603][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8413.900603][ T253] ___sys_sendmsg+0xee/0x170 [ 8413.900603][ T253] __sys_sendmsg+0xcd/0x170 [ 8413.900603][ T253] do_syscall_64+0xc6/0x1e0 [ 8413.900603][ T253] [ 8413.903038][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8413.903038][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8413.903038][ T253] ipv6_find_idev+0x102/0x170 [ 8413.903038][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8413.903038][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8413.903038][ T253] netlink_rcv_skb+0x130/0x360 [ 8413.903038][ T253] netlink_unicast+0x449/0x710 [ 8413.903038][ T253] netlink_sendmsg+0x723/0xbe0 [ 8413.903038][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8413.903038][ T253] ___sys_sendmsg+0xee/0x170 [ 8413.903038][ T253] __sys_sendmsg+0xcd/0x170 [ 8413.903038][ T253] do_syscall_64+0xc6/0x1e0 [ 8413.903038][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8413.903038][ T253] [ 8413.904955][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8413.904955][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8413.904955][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8413.904955][ T253] ipv6_find_idev+0x102/0x170 [ 8413.904955][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8413.904955][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8413.904955][ T253] netlink_rcv_skb+0x130/0x360 [ 8413.904955][ T253] netlink_unicast+0x449/0x710 [ 8413.904955][ T253] netlink_sendmsg+0x723/0xbe0 [ 8413.904955][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8413.904955][ T253] ___sys_sendmsg+0xee/0x170 [ 8413.904955][ T253] __sys_sendmsg+0xcd/0x170 [ 8413.904955][ T253] do_syscall_64+0xc6/0x1e0 [ 8413.904955][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8413.904955][ T253] [ 8424.154312][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8424.154856][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8424.154856][ T253] dst_init+0x84/0x4a0 [ 8424.154856][ T253] dst_alloc+0x97/0x150 [ 8424.154856][ T253] ip6_dst_alloc+0x23/0x90 [ 8424.154856][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8424.154856][ T253] ip6_pol_route+0x56f/0x840 [ 8424.154856][ T253] fib6_rule_lookup+0x334/0x630 [ 8424.154856][ T253] ip6_route_output_flags+0x259/0x480 [ 8424.154856][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8424.154856][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8424.154856][ T253] netlink_rcv_skb+0x130/0x360 [ 8424.154856][ T253] netlink_unicast+0x449/0x710 [ 8424.154856][ T253] netlink_sendmsg+0x723/0xbe0 [ 8424.154856][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8424.154856][ T253] ___sys_sendmsg+0xee/0x170 [ 8424.154856][ T253] __sys_sendmsg+0xcd/0x170 [ 8424.154856][ T253] do_syscall_64+0xc6/0x1e0 [ 8424.154856][ T253] [ 8424.157303][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8424.157303][ T253] netdev_get_by_index+0x5e/0x80 [ 8424.157303][ T253] fib6_nh_init+0x3d8/0x1580 [ 8424.157303][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8424.157303][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8424.157303][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8424.157303][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8424.157303][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8424.157303][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8424.157303][ T253] addrconf_dad_begin+0x310/0x670 [ 8424.157303][ T253] addrconf_dad_work+0x10b/0xab0 [ 8424.157303][ T253] process_one_work+0x84d/0x18a0 [ 8424.157303][ T253] worker_thread+0x587/0xd30 [ 8424.157303][ T253] kthread+0x28a/0x350 [ 8424.157303][ T253] ret_from_fork+0x31/0x70 [ 8424.157303][ T253] ret_from_fork_asm+0x1a/0x30 [ 8424.157303][ T253] [ 8424.159675][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8424.159675][ T253] netdev_get_by_index+0x5e/0x80 [ 8424.159675][ T253] fib6_nh_init+0x3d8/0x1580 [ 8424.159675][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8424.159675][ T253] ip6_route_add+0x1c/0x140 [ 8424.159675][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8424.159675][ T253] inet6_addr_add+0x4f8/0xa40 [ 8424.159675][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8424.159675][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8424.159675][ T253] netlink_rcv_skb+0x130/0x360 [ 8424.159675][ T253] netlink_unicast+0x449/0x710 [ 8424.159675][ T253] netlink_sendmsg+0x723/0xbe0 [ 8424.159675][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8424.159675][ T253] ___sys_sendmsg+0xee/0x170 [ 8424.159675][ T253] __sys_sendmsg+0xcd/0x170 [ 8424.159675][ T253] do_syscall_64+0xc6/0x1e0 [ 8424.159675][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8424.159675][ T253] [ 8424.162160][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8424.162160][ T253] netdev_get_by_index+0x5e/0x80 [ 8424.162160][ T253] fib6_nh_init+0x3d8/0x1580 [ 8424.162160][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8424.162160][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8424.162160][ T253] ipv6_add_addr+0x411/0x2000 [ 8424.162160][ T253] inet6_addr_add+0x30e/0xa40 [ 8424.162160][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8424.162160][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8424.162160][ T253] netlink_rcv_skb+0x130/0x360 [ 8424.162160][ T253] netlink_unicast+0x449/0x710 [ 8424.162160][ T253] netlink_sendmsg+0x723/0xbe0 [ 8424.162160][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8424.162160][ T253] ___sys_sendmsg+0xee/0x170 [ 8424.162160][ T253] __sys_sendmsg+0xcd/0x170 [ 8424.162160][ T253] do_syscall_64+0xc6/0x1e0 [ 8424.162160][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8424.162160][ T253] [ 8424.164629][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8424.164629][ T253] netdev_get_by_index+0x5e/0x80 [ 8424.164629][ T253] fib6_nh_init+0x3d8/0x1580 [ 8424.164629][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8424.164629][ T253] ip6_route_add+0x1c/0x140 [ 8424.164629][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8424.164629][ T253] addrconf_add_dev+0xe2/0x170 [ 8424.164629][ T253] inet6_addr_add+0x12f/0xa40 [ 8424.164629][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8424.164629][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8424.164629][ T253] netlink_rcv_skb+0x130/0x360 [ 8424.164629][ T253] netlink_unicast+0x449/0x710 [ 8424.164629][ T253] netlink_sendmsg+0x723/0xbe0 [ 8424.164629][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8424.164629][ T253] ___sys_sendmsg+0xee/0x170 [ 8424.164629][ T253] __sys_sendmsg+0xcd/0x170 [ 8424.164629][ T253] do_syscall_64+0xc6/0x1e0 [ 8424.164629][ T253] [ 8424.167080][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8424.167080][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8424.167080][ T253] ipv6_find_idev+0x102/0x170 [ 8424.167080][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8424.167080][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8424.167080][ T253] netlink_rcv_skb+0x130/0x360 [ 8424.167080][ T253] netlink_unicast+0x449/0x710 [ 8424.167080][ T253] netlink_sendmsg+0x723/0xbe0 [ 8424.167080][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8424.167080][ T253] ___sys_sendmsg+0xee/0x170 [ 8424.167080][ T253] __sys_sendmsg+0xcd/0x170 [ 8424.167080][ T253] do_syscall_64+0xc6/0x1e0 [ 8424.167080][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8424.167080][ T253] [ 8424.168981][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8424.168981][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8424.168981][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8424.168981][ T253] ipv6_find_idev+0x102/0x170 [ 8424.168981][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8424.168981][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8424.168981][ T253] netlink_rcv_skb+0x130/0x360 [ 8424.168981][ T253] netlink_unicast+0x449/0x710 [ 8424.168981][ T253] netlink_sendmsg+0x723/0xbe0 [ 8424.168981][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8424.168981][ T253] ___sys_sendmsg+0xee/0x170 [ 8424.168981][ T253] __sys_sendmsg+0xcd/0x170 [ 8424.168981][ T253] do_syscall_64+0xc6/0x1e0 [ 8424.168981][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8424.168981][ T253] [ 8434.418242][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8434.418796][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8434.418796][ T253] dst_init+0x84/0x4a0 [ 8434.418796][ T253] dst_alloc+0x97/0x150 [ 8434.418796][ T253] ip6_dst_alloc+0x23/0x90 [ 8434.418796][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8434.418796][ T253] ip6_pol_route+0x56f/0x840 [ 8434.418796][ T253] fib6_rule_lookup+0x334/0x630 [ 8434.418796][ T253] ip6_route_output_flags+0x259/0x480 [ 8434.418796][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8434.418796][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8434.418796][ T253] netlink_rcv_skb+0x130/0x360 [ 8434.418796][ T253] netlink_unicast+0x449/0x710 [ 8434.418796][ T253] netlink_sendmsg+0x723/0xbe0 [ 8434.418796][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8434.418796][ T253] ___sys_sendmsg+0xee/0x170 [ 8434.418796][ T253] __sys_sendmsg+0xcd/0x170 [ 8434.418796][ T253] do_syscall_64+0xc6/0x1e0 [ 8434.418796][ T253] [ 8434.421241][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8434.421241][ T253] netdev_get_by_index+0x5e/0x80 [ 8434.421241][ T253] fib6_nh_init+0x3d8/0x1580 [ 8434.421241][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8434.421241][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8434.421241][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8434.421241][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8434.421241][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8434.421241][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8434.421241][ T253] addrconf_dad_begin+0x310/0x670 [ 8434.421241][ T253] addrconf_dad_work+0x10b/0xab0 [ 8434.421241][ T253] process_one_work+0x84d/0x18a0 [ 8434.421241][ T253] worker_thread+0x587/0xd30 [ 8434.421241][ T253] kthread+0x28a/0x350 [ 8434.421241][ T253] ret_from_fork+0x31/0x70 [ 8434.421241][ T253] ret_from_fork_asm+0x1a/0x30 [ 8434.421241][ T253] [ 8434.423615][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8434.423615][ T253] netdev_get_by_index+0x5e/0x80 [ 8434.423615][ T253] fib6_nh_init+0x3d8/0x1580 [ 8434.423615][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8434.423615][ T253] ip6_route_add+0x1c/0x140 [ 8434.423615][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8434.423615][ T253] inet6_addr_add+0x4f8/0xa40 [ 8434.423615][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8434.423615][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8434.423615][ T253] netlink_rcv_skb+0x130/0x360 [ 8434.423615][ T253] netlink_unicast+0x449/0x710 [ 8434.423615][ T253] netlink_sendmsg+0x723/0xbe0 [ 8434.423615][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8434.423615][ T253] ___sys_sendmsg+0xee/0x170 [ 8434.423615][ T253] __sys_sendmsg+0xcd/0x170 [ 8434.423615][ T253] do_syscall_64+0xc6/0x1e0 [ 8434.423615][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8434.423615][ T253] [ 8434.426111][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8434.426111][ T253] netdev_get_by_index+0x5e/0x80 [ 8434.426111][ T253] fib6_nh_init+0x3d8/0x1580 [ 8434.426111][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8434.426111][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8434.426111][ T253] ipv6_add_addr+0x411/0x2000 [ 8434.426111][ T253] inet6_addr_add+0x30e/0xa40 [ 8434.426111][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8434.426111][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8434.426111][ T253] netlink_rcv_skb+0x130/0x360 [ 8434.426111][ T253] netlink_unicast+0x449/0x710 [ 8434.426111][ T253] netlink_sendmsg+0x723/0xbe0 [ 8434.426111][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8434.426111][ T253] ___sys_sendmsg+0xee/0x170 [ 8434.426111][ T253] __sys_sendmsg+0xcd/0x170 [ 8434.426111][ T253] do_syscall_64+0xc6/0x1e0 [ 8434.426111][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8434.426111][ T253] [ 8434.428599][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8434.428599][ T253] netdev_get_by_index+0x5e/0x80 [ 8434.428599][ T253] fib6_nh_init+0x3d8/0x1580 [ 8434.428599][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8434.428599][ T253] ip6_route_add+0x1c/0x140 [ 8434.428599][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8434.428599][ T253] addrconf_add_dev+0xe2/0x170 [ 8434.428599][ T253] inet6_addr_add+0x12f/0xa40 [ 8434.428599][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8434.428599][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8434.428599][ T253] netlink_rcv_skb+0x130/0x360 [ 8434.428599][ T253] netlink_unicast+0x449/0x710 [ 8434.428599][ T253] netlink_sendmsg+0x723/0xbe0 [ 8434.428599][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8434.428599][ T253] ___sys_sendmsg+0xee/0x170 [ 8434.428599][ T253] __sys_sendmsg+0xcd/0x170 [ 8434.428599][ T253] do_syscall_64+0xc6/0x1e0 [ 8434.428599][ T253] [ 8434.431050][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8434.431050][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8434.431050][ T253] ipv6_find_idev+0x102/0x170 [ 8434.431050][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8434.431050][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8434.431050][ T253] netlink_rcv_skb+0x130/0x360 [ 8434.431050][ T253] netlink_unicast+0x449/0x710 [ 8434.431050][ T253] netlink_sendmsg+0x723/0xbe0 [ 8434.431050][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8434.431050][ T253] ___sys_sendmsg+0xee/0x170 [ 8434.431050][ T253] __sys_sendmsg+0xcd/0x170 [ 8434.431050][ T253] do_syscall_64+0xc6/0x1e0 [ 8434.431050][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8434.431050][ T253] [ 8434.432960][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8434.432960][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8434.432960][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8434.432960][ T253] ipv6_find_idev+0x102/0x170 [ 8434.432960][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8434.432960][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8434.432960][ T253] netlink_rcv_skb+0x130/0x360 [ 8434.432960][ T253] netlink_unicast+0x449/0x710 [ 8434.432960][ T253] netlink_sendmsg+0x723/0xbe0 [ 8434.432960][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8434.432960][ T253] ___sys_sendmsg+0xee/0x170 [ 8434.432960][ T253] __sys_sendmsg+0xcd/0x170 [ 8434.432960][ T253] do_syscall_64+0xc6/0x1e0 [ 8434.432960][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8434.432960][ T253] [ 8444.546234][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8444.546793][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8444.546793][ T253] dst_init+0x84/0x4a0 [ 8444.546793][ T253] dst_alloc+0x97/0x150 [ 8444.546793][ T253] ip6_dst_alloc+0x23/0x90 [ 8444.546793][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8444.546793][ T253] ip6_pol_route+0x56f/0x840 [ 8444.546793][ T253] fib6_rule_lookup+0x334/0x630 [ 8444.546793][ T253] ip6_route_output_flags+0x259/0x480 [ 8444.546793][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8444.546793][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8444.546793][ T253] netlink_rcv_skb+0x130/0x360 [ 8444.546793][ T253] netlink_unicast+0x449/0x710 [ 8444.546793][ T253] netlink_sendmsg+0x723/0xbe0 [ 8444.546793][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8444.546793][ T253] ___sys_sendmsg+0xee/0x170 [ 8444.546793][ T253] __sys_sendmsg+0xcd/0x170 [ 8444.546793][ T253] do_syscall_64+0xc6/0x1e0 [ 8444.546793][ T253] [ 8444.549236][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8444.549236][ T253] netdev_get_by_index+0x5e/0x80 [ 8444.549236][ T253] fib6_nh_init+0x3d8/0x1580 [ 8444.549236][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8444.549236][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8444.549236][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8444.549236][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8444.549236][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8444.549236][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8444.549236][ T253] addrconf_dad_begin+0x310/0x670 [ 8444.549236][ T253] addrconf_dad_work+0x10b/0xab0 [ 8444.549236][ T253] process_one_work+0x84d/0x18a0 [ 8444.549236][ T253] worker_thread+0x587/0xd30 [ 8444.549236][ T253] kthread+0x28a/0x350 [ 8444.549236][ T253] ret_from_fork+0x31/0x70 [ 8444.549236][ T253] ret_from_fork_asm+0x1a/0x30 [ 8444.549236][ T253] [ 8444.551635][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8444.551635][ T253] netdev_get_by_index+0x5e/0x80 [ 8444.551635][ T253] fib6_nh_init+0x3d8/0x1580 [ 8444.551635][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8444.551635][ T253] ip6_route_add+0x1c/0x140 [ 8444.551635][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8444.551635][ T253] inet6_addr_add+0x4f8/0xa40 [ 8444.551635][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8444.551635][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8444.551635][ T253] netlink_rcv_skb+0x130/0x360 [ 8444.551635][ T253] netlink_unicast+0x449/0x710 [ 8444.551635][ T253] netlink_sendmsg+0x723/0xbe0 [ 8444.551635][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8444.551635][ T253] ___sys_sendmsg+0xee/0x170 [ 8444.551635][ T253] __sys_sendmsg+0xcd/0x170 [ 8444.551635][ T253] do_syscall_64+0xc6/0x1e0 [ 8444.551635][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8444.551635][ T253] [ 8444.554144][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8444.554144][ T253] netdev_get_by_index+0x5e/0x80 [ 8444.554144][ T253] fib6_nh_init+0x3d8/0x1580 [ 8444.554144][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8444.554144][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8444.554144][ T253] ipv6_add_addr+0x411/0x2000 [ 8444.554144][ T253] inet6_addr_add+0x30e/0xa40 [ 8444.554144][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8444.554144][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8444.554144][ T253] netlink_rcv_skb+0x130/0x360 [ 8444.554144][ T253] netlink_unicast+0x449/0x710 [ 8444.554144][ T253] netlink_sendmsg+0x723/0xbe0 [ 8444.554144][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8444.554144][ T253] ___sys_sendmsg+0xee/0x170 [ 8444.554144][ T253] __sys_sendmsg+0xcd/0x170 [ 8444.554144][ T253] do_syscall_64+0xc6/0x1e0 [ 8444.554144][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8444.554144][ T253] [ 8444.556650][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8444.556650][ T253] netdev_get_by_index+0x5e/0x80 [ 8444.556650][ T253] fib6_nh_init+0x3d8/0x1580 [ 8444.556650][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8444.556650][ T253] ip6_route_add+0x1c/0x140 [ 8444.556650][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8444.556650][ T253] addrconf_add_dev+0xe2/0x170 [ 8444.556650][ T253] inet6_addr_add+0x12f/0xa40 [ 8444.556650][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8444.556650][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8444.556650][ T253] netlink_rcv_skb+0x130/0x360 [ 8444.556650][ T253] netlink_unicast+0x449/0x710 [ 8444.556650][ T253] netlink_sendmsg+0x723/0xbe0 [ 8444.556650][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8444.556650][ T253] ___sys_sendmsg+0xee/0x170 [ 8444.556650][ T253] __sys_sendmsg+0xcd/0x170 [ 8444.556650][ T253] do_syscall_64+0xc6/0x1e0 [ 8444.556650][ T253] [ 8444.559110][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8444.559110][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8444.559110][ T253] ipv6_find_idev+0x102/0x170 [ 8444.559110][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8444.559110][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8444.559110][ T253] netlink_rcv_skb+0x130/0x360 [ 8444.559110][ T253] netlink_unicast+0x449/0x710 [ 8444.559110][ T253] netlink_sendmsg+0x723/0xbe0 [ 8444.559110][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8444.559110][ T253] ___sys_sendmsg+0xee/0x170 [ 8444.559110][ T253] __sys_sendmsg+0xcd/0x170 [ 8444.559110][ T253] do_syscall_64+0xc6/0x1e0 [ 8444.559110][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8444.559110][ T253] [ 8444.561041][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8444.561041][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8444.561041][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8444.561041][ T253] ipv6_find_idev+0x102/0x170 [ 8444.561041][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8444.561041][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8444.561041][ T253] netlink_rcv_skb+0x130/0x360 [ 8444.561041][ T253] netlink_unicast+0x449/0x710 [ 8444.561041][ T253] netlink_sendmsg+0x723/0xbe0 [ 8444.561041][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8444.561041][ T253] ___sys_sendmsg+0xee/0x170 [ 8444.561041][ T253] __sys_sendmsg+0xcd/0x170 [ 8444.561041][ T253] do_syscall_64+0xc6/0x1e0 [ 8444.561041][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8444.561041][ T253] [ 8454.786228][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8454.786779][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8454.786779][ T253] dst_init+0x84/0x4a0 [ 8454.786779][ T253] dst_alloc+0x97/0x150 [ 8454.786779][ T253] ip6_dst_alloc+0x23/0x90 [ 8454.786779][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8454.786779][ T253] ip6_pol_route+0x56f/0x840 [ 8454.786779][ T253] fib6_rule_lookup+0x334/0x630 [ 8454.786779][ T253] ip6_route_output_flags+0x259/0x480 [ 8454.786779][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8454.786779][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8454.786779][ T253] netlink_rcv_skb+0x130/0x360 [ 8454.786779][ T253] netlink_unicast+0x449/0x710 [ 8454.786779][ T253] netlink_sendmsg+0x723/0xbe0 [ 8454.786779][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8454.786779][ T253] ___sys_sendmsg+0xee/0x170 [ 8454.786779][ T253] __sys_sendmsg+0xcd/0x170 [ 8454.786779][ T253] do_syscall_64+0xc6/0x1e0 [ 8454.786779][ T253] [ 8454.789225][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8454.789225][ T253] netdev_get_by_index+0x5e/0x80 [ 8454.789225][ T253] fib6_nh_init+0x3d8/0x1580 [ 8454.789225][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8454.789225][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8454.789225][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8454.789225][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8454.789225][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8454.789225][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8454.789225][ T253] addrconf_dad_begin+0x310/0x670 [ 8454.789225][ T253] addrconf_dad_work+0x10b/0xab0 [ 8454.789225][ T253] process_one_work+0x84d/0x18a0 [ 8454.789225][ T253] worker_thread+0x587/0xd30 [ 8454.789225][ T253] kthread+0x28a/0x350 [ 8454.789225][ T253] ret_from_fork+0x31/0x70 [ 8454.789225][ T253] ret_from_fork_asm+0x1a/0x30 [ 8454.789225][ T253] [ 8454.791915][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8454.791915][ T253] netdev_get_by_index+0x5e/0x80 [ 8454.791915][ T253] fib6_nh_init+0x3d8/0x1580 [ 8454.791915][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8454.791915][ T253] ip6_route_add+0x1c/0x140 [ 8454.791915][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8454.791915][ T253] inet6_addr_add+0x4f8/0xa40 [ 8454.791915][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8454.791915][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8454.791915][ T253] netlink_rcv_skb+0x130/0x360 [ 8454.791915][ T253] netlink_unicast+0x449/0x710 [ 8454.791915][ T253] netlink_sendmsg+0x723/0xbe0 [ 8454.791915][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8454.791915][ T253] ___sys_sendmsg+0xee/0x170 [ 8454.791915][ T253] __sys_sendmsg+0xcd/0x170 [ 8454.791915][ T253] do_syscall_64+0xc6/0x1e0 [ 8454.791915][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8454.791915][ T253] [ 8454.794402][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8454.794402][ T253] netdev_get_by_index+0x5e/0x80 [ 8454.794402][ T253] fib6_nh_init+0x3d8/0x1580 [ 8454.794402][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8454.794402][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8454.794402][ T253] ipv6_add_addr+0x411/0x2000 [ 8454.794402][ T253] inet6_addr_add+0x30e/0xa40 [ 8454.794402][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8454.794402][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8454.794402][ T253] netlink_rcv_skb+0x130/0x360 [ 8454.794402][ T253] netlink_unicast+0x449/0x710 [ 8454.794402][ T253] netlink_sendmsg+0x723/0xbe0 [ 8454.794402][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8454.794402][ T253] ___sys_sendmsg+0xee/0x170 [ 8454.794402][ T253] __sys_sendmsg+0xcd/0x170 [ 8454.794402][ T253] do_syscall_64+0xc6/0x1e0 [ 8454.794402][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8454.794402][ T253] [ 8454.796901][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8454.796901][ T253] netdev_get_by_index+0x5e/0x80 [ 8454.796901][ T253] fib6_nh_init+0x3d8/0x1580 [ 8454.796901][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8454.796901][ T253] ip6_route_add+0x1c/0x140 [ 8454.796901][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8454.796901][ T253] addrconf_add_dev+0xe2/0x170 [ 8454.796901][ T253] inet6_addr_add+0x12f/0xa40 [ 8454.796901][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8454.796901][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8454.796901][ T253] netlink_rcv_skb+0x130/0x360 [ 8454.796901][ T253] netlink_unicast+0x449/0x710 [ 8454.796901][ T253] netlink_sendmsg+0x723/0xbe0 [ 8454.796901][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8454.796901][ T253] ___sys_sendmsg+0xee/0x170 [ 8454.796901][ T253] __sys_sendmsg+0xcd/0x170 [ 8454.796901][ T253] do_syscall_64+0xc6/0x1e0 [ 8454.796901][ T253] [ 8454.799350][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8454.799350][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8454.799350][ T253] ipv6_find_idev+0x102/0x170 [ 8454.799350][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8454.799350][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8454.799350][ T253] netlink_rcv_skb+0x130/0x360 [ 8454.799350][ T253] netlink_unicast+0x449/0x710 [ 8454.799350][ T253] netlink_sendmsg+0x723/0xbe0 [ 8454.799350][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8454.799350][ T253] ___sys_sendmsg+0xee/0x170 [ 8454.799350][ T253] __sys_sendmsg+0xcd/0x170 [ 8454.799350][ T253] do_syscall_64+0xc6/0x1e0 [ 8454.799350][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8454.799350][ T253] [ 8454.801279][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8454.801279][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8454.801279][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8454.801279][ T253] ipv6_find_idev+0x102/0x170 [ 8454.801279][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8454.801279][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8454.801279][ T253] netlink_rcv_skb+0x130/0x360 [ 8454.801279][ T253] netlink_unicast+0x449/0x710 [ 8454.801279][ T253] netlink_sendmsg+0x723/0xbe0 [ 8454.801279][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8454.801279][ T253] ___sys_sendmsg+0xee/0x170 [ 8454.801279][ T253] __sys_sendmsg+0xcd/0x170 [ 8454.801279][ T253] do_syscall_64+0xc6/0x1e0 [ 8454.801279][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8454.801279][ T253] [ 8464.914315][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8464.914759][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8464.914759][ T253] dst_init+0x84/0x4a0 [ 8464.914759][ T253] dst_alloc+0x97/0x150 [ 8464.914759][ T253] ip6_dst_alloc+0x23/0x90 [ 8464.914759][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8464.914759][ T253] ip6_pol_route+0x56f/0x840 [ 8464.914759][ T253] fib6_rule_lookup+0x334/0x630 [ 8464.914759][ T253] ip6_route_output_flags+0x259/0x480 [ 8464.914759][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8464.914759][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8464.914759][ T253] netlink_rcv_skb+0x130/0x360 [ 8464.914759][ T253] netlink_unicast+0x449/0x710 [ 8464.914759][ T253] netlink_sendmsg+0x723/0xbe0 [ 8464.914759][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8464.914759][ T253] ___sys_sendmsg+0xee/0x170 [ 8464.914759][ T253] __sys_sendmsg+0xcd/0x170 [ 8464.914759][ T253] do_syscall_64+0xc6/0x1e0 [ 8464.914759][ T253] [ 8464.916977][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8464.916977][ T253] netdev_get_by_index+0x5e/0x80 [ 8464.916977][ T253] fib6_nh_init+0x3d8/0x1580 [ 8464.916977][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8464.916977][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8464.916977][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8464.916977][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8464.916977][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8464.916977][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8464.916977][ T253] addrconf_dad_begin+0x310/0x670 [ 8464.916977][ T253] addrconf_dad_work+0x10b/0xab0 [ 8464.916977][ T253] process_one_work+0x84d/0x18a0 [ 8464.916977][ T253] worker_thread+0x587/0xd30 [ 8464.916977][ T253] kthread+0x28a/0x350 [ 8464.916977][ T253] ret_from_fork+0x31/0x70 [ 8464.916977][ T253] ret_from_fork_asm+0x1a/0x30 [ 8464.916977][ T253] [ 8464.919127][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8464.919127][ T253] netdev_get_by_index+0x5e/0x80 [ 8464.919127][ T253] fib6_nh_init+0x3d8/0x1580 [ 8464.919127][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8464.919127][ T253] ip6_route_add+0x1c/0x140 [ 8464.919127][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8464.919127][ T253] inet6_addr_add+0x4f8/0xa40 [ 8464.919127][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8464.919127][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8464.919127][ T253] netlink_rcv_skb+0x130/0x360 [ 8464.919127][ T253] netlink_unicast+0x449/0x710 [ 8464.919127][ T253] netlink_sendmsg+0x723/0xbe0 [ 8464.919127][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8464.919127][ T253] ___sys_sendmsg+0xee/0x170 [ 8464.919127][ T253] __sys_sendmsg+0xcd/0x170 [ 8464.919127][ T253] do_syscall_64+0xc6/0x1e0 [ 8464.919127][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8464.919127][ T253] [ 8464.921391][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8464.921391][ T253] netdev_get_by_index+0x5e/0x80 [ 8464.921391][ T253] fib6_nh_init+0x3d8/0x1580 [ 8464.921391][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8464.921391][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8464.921391][ T253] ipv6_add_addr+0x411/0x2000 [ 8464.921391][ T253] inet6_addr_add+0x30e/0xa40 [ 8464.921391][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8464.921391][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8464.921391][ T253] netlink_rcv_skb+0x130/0x360 [ 8464.921391][ T253] netlink_unicast+0x449/0x710 [ 8464.921391][ T253] netlink_sendmsg+0x723/0xbe0 [ 8464.921391][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8464.921391][ T253] ___sys_sendmsg+0xee/0x170 [ 8464.921391][ T253] __sys_sendmsg+0xcd/0x170 [ 8464.921391][ T253] do_syscall_64+0xc6/0x1e0 [ 8464.921391][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8464.921391][ T253] [ 8464.923634][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8464.923634][ T253] netdev_get_by_index+0x5e/0x80 [ 8464.923634][ T253] fib6_nh_init+0x3d8/0x1580 [ 8464.923634][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8464.923634][ T253] ip6_route_add+0x1c/0x140 [ 8464.923634][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8464.923634][ T253] addrconf_add_dev+0xe2/0x170 [ 8464.923634][ T253] inet6_addr_add+0x12f/0xa40 [ 8464.923634][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8464.923634][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8464.923634][ T253] netlink_rcv_skb+0x130/0x360 [ 8464.923634][ T253] netlink_unicast+0x449/0x710 [ 8464.923634][ T253] netlink_sendmsg+0x723/0xbe0 [ 8464.923634][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8464.923634][ T253] ___sys_sendmsg+0xee/0x170 [ 8464.923634][ T253] __sys_sendmsg+0xcd/0x170 [ 8464.923634][ T253] do_syscall_64+0xc6/0x1e0 [ 8464.923634][ T253] [ 8464.925835][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8464.925835][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8464.925835][ T253] ipv6_find_idev+0x102/0x170 [ 8464.925835][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8464.925835][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8464.925835][ T253] netlink_rcv_skb+0x130/0x360 [ 8464.925835][ T253] netlink_unicast+0x449/0x710 [ 8464.925835][ T253] netlink_sendmsg+0x723/0xbe0 [ 8464.925835][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8464.925835][ T253] ___sys_sendmsg+0xee/0x170 [ 8464.925835][ T253] __sys_sendmsg+0xcd/0x170 [ 8464.925835][ T253] do_syscall_64+0xc6/0x1e0 [ 8464.925835][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8464.925835][ T253] [ 8464.927553][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8464.927553][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8464.927553][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8464.927553][ T253] ipv6_find_idev+0x102/0x170 [ 8464.927553][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8464.927553][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8464.927553][ T253] netlink_rcv_skb+0x130/0x360 [ 8464.927553][ T253] netlink_unicast+0x449/0x710 [ 8464.927553][ T253] netlink_sendmsg+0x723/0xbe0 [ 8464.927553][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8464.927553][ T253] ___sys_sendmsg+0xee/0x170 [ 8464.927553][ T253] __sys_sendmsg+0xcd/0x170 [ 8464.927553][ T253] do_syscall_64+0xc6/0x1e0 [ 8464.927553][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8464.927553][ T253] [ 8475.178443][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8475.179143][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8475.179143][ T253] dst_init+0x84/0x4a0 [ 8475.179143][ T253] dst_alloc+0x97/0x150 [ 8475.179143][ T253] ip6_dst_alloc+0x23/0x90 [ 8475.179143][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8475.179143][ T253] ip6_pol_route+0x56f/0x840 [ 8475.179143][ T253] fib6_rule_lookup+0x334/0x630 [ 8475.179143][ T253] ip6_route_output_flags+0x259/0x480 [ 8475.179143][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8475.179143][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8475.179143][ T253] netlink_rcv_skb+0x130/0x360 [ 8475.179143][ T253] netlink_unicast+0x449/0x710 [ 8475.179143][ T253] netlink_sendmsg+0x723/0xbe0 [ 8475.179143][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8475.179143][ T253] ___sys_sendmsg+0xee/0x170 [ 8475.179143][ T253] __sys_sendmsg+0xcd/0x170 [ 8475.179143][ T253] do_syscall_64+0xc6/0x1e0 [ 8475.179143][ T253] [ 8475.183453][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8475.183453][ T253] netdev_get_by_index+0x5e/0x80 [ 8475.183453][ T253] fib6_nh_init+0x3d8/0x1580 [ 8475.183453][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8475.183453][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8475.183453][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8475.183453][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8475.183453][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8475.183453][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8475.183453][ T253] addrconf_dad_begin+0x310/0x670 [ 8475.183453][ T253] addrconf_dad_work+0x10b/0xab0 [ 8475.183453][ T253] process_one_work+0x84d/0x18a0 [ 8475.183453][ T253] worker_thread+0x587/0xd30 [ 8475.183453][ T253] kthread+0x28a/0x350 [ 8475.183453][ T253] ret_from_fork+0x31/0x70 [ 8475.183453][ T253] ret_from_fork_asm+0x1a/0x30 [ 8475.183453][ T253] [ 8475.188259][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8475.188259][ T253] netdev_get_by_index+0x5e/0x80 [ 8475.188259][ T253] fib6_nh_init+0x3d8/0x1580 [ 8475.188259][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8475.188259][ T253] ip6_route_add+0x1c/0x140 [ 8475.188259][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8475.188259][ T253] inet6_addr_add+0x4f8/0xa40 [ 8475.188259][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8475.188259][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8475.188259][ T253] netlink_rcv_skb+0x130/0x360 [ 8475.188259][ T253] netlink_unicast+0x449/0x710 [ 8475.188259][ T253] netlink_sendmsg+0x723/0xbe0 [ 8475.188259][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8475.188259][ T253] ___sys_sendmsg+0xee/0x170 [ 8475.188259][ T253] __sys_sendmsg+0xcd/0x170 [ 8475.188259][ T253] do_syscall_64+0xc6/0x1e0 [ 8475.188259][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8475.188259][ T253] [ 8475.194848][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8475.194848][ T253] netdev_get_by_index+0x5e/0x80 [ 8475.194848][ T253] fib6_nh_init+0x3d8/0x1580 [ 8475.194848][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8475.194848][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8475.194848][ T253] ipv6_add_addr+0x411/0x2000 [ 8475.194848][ T253] inet6_addr_add+0x30e/0xa40 [ 8475.194848][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8475.194848][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8475.194848][ T253] netlink_rcv_skb+0x130/0x360 [ 8475.194848][ T253] netlink_unicast+0x449/0x710 [ 8475.194848][ T253] netlink_sendmsg+0x723/0xbe0 [ 8475.194848][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8475.194848][ T253] ___sys_sendmsg+0xee/0x170 [ 8475.194848][ T253] __sys_sendmsg+0xcd/0x170 [ 8475.194848][ T253] do_syscall_64+0xc6/0x1e0 [ 8475.194848][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8475.194848][ T253] [ 8475.201617][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8475.201617][ T253] netdev_get_by_index+0x5e/0x80 [ 8475.201617][ T253] fib6_nh_init+0x3d8/0x1580 [ 8475.201617][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8475.201617][ T253] ip6_route_add+0x1c/0x140 [ 8475.201617][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8475.201617][ T253] addrconf_add_dev+0xe2/0x170 [ 8475.201617][ T253] inet6_addr_add+0x12f/0xa40 [ 8475.201617][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8475.201617][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8475.201617][ T253] netlink_rcv_skb+0x130/0x360 [ 8475.201617][ T253] netlink_unicast+0x449/0x710 [ 8475.201617][ T253] netlink_sendmsg+0x723/0xbe0 [ 8475.201617][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8475.201617][ T253] ___sys_sendmsg+0xee/0x170 [ 8475.201617][ T253] __sys_sendmsg+0xcd/0x170 [ 8475.201617][ T253] do_syscall_64+0xc6/0x1e0 [ 8475.201617][ T253] [ 8475.208538][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8475.208538][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8475.208538][ T253] ipv6_find_idev+0x102/0x170 [ 8475.208538][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8475.208538][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8475.208538][ T253] netlink_rcv_skb+0x130/0x360 [ 8475.208538][ T253] netlink_unicast+0x449/0x710 [ 8475.208538][ T253] netlink_sendmsg+0x723/0xbe0 [ 8475.208538][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8475.208538][ T253] ___sys_sendmsg+0xee/0x170 [ 8475.208538][ T253] __sys_sendmsg+0xcd/0x170 [ 8475.208538][ T253] do_syscall_64+0xc6/0x1e0 [ 8475.208538][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8475.208538][ T253] [ 8475.213750][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8475.213750][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8475.213750][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8475.213750][ T253] ipv6_find_idev+0x102/0x170 [ 8475.213750][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8475.213750][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8475.213750][ T253] netlink_rcv_skb+0x130/0x360 [ 8475.213750][ T253] netlink_unicast+0x449/0x710 [ 8475.213750][ T253] netlink_sendmsg+0x723/0xbe0 [ 8475.213750][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8475.213750][ T253] ___sys_sendmsg+0xee/0x170 [ 8475.213750][ T253] __sys_sendmsg+0xcd/0x170 [ 8475.213750][ T253] do_syscall_64+0xc6/0x1e0 [ 8475.213750][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8475.213750][ T253] [ 8485.842431][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8485.843135][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8485.843135][ T253] dst_init+0x84/0x4a0 [ 8485.843135][ T253] dst_alloc+0x97/0x150 [ 8485.843135][ T253] ip6_dst_alloc+0x23/0x90 [ 8485.843135][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8485.843135][ T253] ip6_pol_route+0x56f/0x840 [ 8485.843135][ T253] fib6_rule_lookup+0x334/0x630 [ 8485.843135][ T253] ip6_route_output_flags+0x259/0x480 [ 8485.843135][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8485.843135][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8485.843135][ T253] netlink_rcv_skb+0x130/0x360 [ 8485.843135][ T253] netlink_unicast+0x449/0x710 [ 8485.843135][ T253] netlink_sendmsg+0x723/0xbe0 [ 8485.843135][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8485.843135][ T253] ___sys_sendmsg+0xee/0x170 [ 8485.843135][ T253] __sys_sendmsg+0xcd/0x170 [ 8485.843135][ T253] do_syscall_64+0xc6/0x1e0 [ 8485.843135][ T253] [ 8485.846904][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8485.846904][ T253] netdev_get_by_index+0x5e/0x80 [ 8485.846904][ T253] fib6_nh_init+0x3d8/0x1580 [ 8485.846904][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8485.846904][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8485.846904][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8485.846904][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8485.846904][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8485.846904][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8485.846904][ T253] addrconf_dad_begin+0x310/0x670 [ 8485.846904][ T253] addrconf_dad_work+0x10b/0xab0 [ 8485.846904][ T253] process_one_work+0x84d/0x18a0 [ 8485.846904][ T253] worker_thread+0x587/0xd30 [ 8485.846904][ T253] kthread+0x28a/0x350 [ 8485.846904][ T253] ret_from_fork+0x31/0x70 [ 8485.846904][ T253] ret_from_fork_asm+0x1a/0x30 [ 8485.846904][ T253] [ 8485.850441][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8485.850441][ T253] netdev_get_by_index+0x5e/0x80 [ 8485.850441][ T253] fib6_nh_init+0x3d8/0x1580 [ 8485.850441][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8485.850441][ T253] ip6_route_add+0x1c/0x140 [ 8485.850441][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8485.850441][ T253] inet6_addr_add+0x4f8/0xa40 [ 8485.850441][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8485.850441][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8485.850441][ T253] netlink_rcv_skb+0x130/0x360 [ 8485.850441][ T253] netlink_unicast+0x449/0x710 [ 8485.850441][ T253] netlink_sendmsg+0x723/0xbe0 [ 8485.850441][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8485.850441][ T253] ___sys_sendmsg+0xee/0x170 [ 8485.850441][ T253] __sys_sendmsg+0xcd/0x170 [ 8485.850441][ T253] do_syscall_64+0xc6/0x1e0 [ 8485.850441][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8485.850441][ T253] [ 8485.854706][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8485.854706][ T253] netdev_get_by_index+0x5e/0x80 [ 8485.854706][ T253] fib6_nh_init+0x3d8/0x1580 [ 8485.854706][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8485.854706][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8485.854706][ T253] ipv6_add_addr+0x411/0x2000 [ 8485.854706][ T253] inet6_addr_add+0x30e/0xa40 [ 8485.854706][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8485.854706][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8485.854706][ T253] netlink_rcv_skb+0x130/0x360 [ 8485.854706][ T253] netlink_unicast+0x449/0x710 [ 8485.854706][ T253] netlink_sendmsg+0x723/0xbe0 [ 8485.854706][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8485.854706][ T253] ___sys_sendmsg+0xee/0x170 [ 8485.854706][ T253] __sys_sendmsg+0xcd/0x170 [ 8485.854706][ T253] do_syscall_64+0xc6/0x1e0 [ 8485.854706][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8485.854706][ T253] [ 8485.858763][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8485.858763][ T253] netdev_get_by_index+0x5e/0x80 [ 8485.858763][ T253] fib6_nh_init+0x3d8/0x1580 [ 8485.858763][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8485.858763][ T253] ip6_route_add+0x1c/0x140 [ 8485.858763][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8485.858763][ T253] addrconf_add_dev+0xe2/0x170 [ 8485.858763][ T253] inet6_addr_add+0x12f/0xa40 [ 8485.858763][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8485.858763][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8485.858763][ T253] netlink_rcv_skb+0x130/0x360 [ 8485.858763][ T253] netlink_unicast+0x449/0x710 [ 8485.858763][ T253] netlink_sendmsg+0x723/0xbe0 [ 8485.858763][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8485.858763][ T253] ___sys_sendmsg+0xee/0x170 [ 8485.858763][ T253] __sys_sendmsg+0xcd/0x170 [ 8485.858763][ T253] do_syscall_64+0xc6/0x1e0 [ 8485.858763][ T253] [ 8485.872070][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8485.872070][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8485.872070][ T253] ipv6_find_idev+0x102/0x170 [ 8485.872070][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8485.872070][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8485.872070][ T253] netlink_rcv_skb+0x130/0x360 [ 8485.872070][ T253] netlink_unicast+0x449/0x710 [ 8485.872070][ T253] netlink_sendmsg+0x723/0xbe0 [ 8485.872070][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8485.872070][ T253] ___sys_sendmsg+0xee/0x170 [ 8485.872070][ T253] __sys_sendmsg+0xcd/0x170 [ 8485.872070][ T253] do_syscall_64+0xc6/0x1e0 [ 8485.872070][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8485.872070][ T253] [ 8485.877119][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8485.877119][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8485.877119][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8485.877119][ T253] ipv6_find_idev+0x102/0x170 [ 8485.877119][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8485.877119][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8485.877119][ T253] netlink_rcv_skb+0x130/0x360 [ 8485.877119][ T253] netlink_unicast+0x449/0x710 [ 8485.877119][ T253] netlink_sendmsg+0x723/0xbe0 [ 8485.877119][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8485.877119][ T253] ___sys_sendmsg+0xee/0x170 [ 8485.877119][ T253] __sys_sendmsg+0xcd/0x170 [ 8485.877119][ T253] do_syscall_64+0xc6/0x1e0 [ 8485.877119][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8485.877119][ T253] [ 8496.098363][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8496.117881][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8496.117881][ T253] dst_init+0x84/0x4a0 [ 8496.117881][ T253] dst_alloc+0x97/0x150 [ 8496.117881][ T253] ip6_dst_alloc+0x23/0x90 [ 8496.117881][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8496.117881][ T253] ip6_pol_route+0x56f/0x840 [ 8496.117881][ T253] fib6_rule_lookup+0x334/0x630 [ 8496.117881][ T253] ip6_route_output_flags+0x259/0x480 [ 8496.117881][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8496.117881][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8496.117881][ T253] netlink_rcv_skb+0x130/0x360 [ 8496.117881][ T253] netlink_unicast+0x449/0x710 [ 8496.117881][ T253] netlink_sendmsg+0x723/0xbe0 [ 8496.117881][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8496.117881][ T253] ___sys_sendmsg+0xee/0x170 [ 8496.117881][ T253] __sys_sendmsg+0xcd/0x170 [ 8496.117881][ T253] do_syscall_64+0xc6/0x1e0 [ 8496.117881][ T253] [ 8496.122274][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8496.122274][ T253] netdev_get_by_index+0x5e/0x80 [ 8496.122274][ T253] fib6_nh_init+0x3d8/0x1580 [ 8496.122274][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8496.122274][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8496.122274][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8496.122274][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8496.122274][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8496.122274][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8496.122274][ T253] addrconf_dad_begin+0x310/0x670 [ 8496.122274][ T253] addrconf_dad_work+0x10b/0xab0 [ 8496.122274][ T253] process_one_work+0x84d/0x18a0 [ 8496.122274][ T253] worker_thread+0x587/0xd30 [ 8496.122274][ T253] kthread+0x28a/0x350 [ 8496.122274][ T253] ret_from_fork+0x31/0x70 [ 8496.122274][ T253] ret_from_fork_asm+0x1a/0x30 [ 8496.122274][ T253] [ 8496.127226][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8496.127226][ T253] netdev_get_by_index+0x5e/0x80 [ 8496.127226][ T253] fib6_nh_init+0x3d8/0x1580 [ 8496.127226][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8496.127226][ T253] ip6_route_add+0x1c/0x140 [ 8496.127226][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8496.127226][ T253] inet6_addr_add+0x4f8/0xa40 [ 8496.127226][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8496.127226][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8496.127226][ T253] netlink_rcv_skb+0x130/0x360 [ 8496.127226][ T253] netlink_unicast+0x449/0x710 [ 8496.127226][ T253] netlink_sendmsg+0x723/0xbe0 [ 8496.127226][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8496.127226][ T253] ___sys_sendmsg+0xee/0x170 [ 8496.127226][ T253] __sys_sendmsg+0xcd/0x170 [ 8496.127226][ T253] do_syscall_64+0xc6/0x1e0 [ 8496.127226][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8496.127226][ T253] [ 8496.132386][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8496.132386][ T253] netdev_get_by_index+0x5e/0x80 [ 8496.132386][ T253] fib6_nh_init+0x3d8/0x1580 [ 8496.132386][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8496.132386][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8496.132386][ T253] ipv6_add_addr+0x411/0x2000 [ 8496.132386][ T253] inet6_addr_add+0x30e/0xa40 [ 8496.132386][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8496.132386][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8496.132386][ T253] netlink_rcv_skb+0x130/0x360 [ 8496.132386][ T253] netlink_unicast+0x449/0x710 [ 8496.132386][ T253] netlink_sendmsg+0x723/0xbe0 [ 8496.132386][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8496.132386][ T253] ___sys_sendmsg+0xee/0x170 [ 8496.132386][ T253] __sys_sendmsg+0xcd/0x170 [ 8496.132386][ T253] do_syscall_64+0xc6/0x1e0 [ 8496.132386][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8496.132386][ T253] [ 8496.137592][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8496.137592][ T253] netdev_get_by_index+0x5e/0x80 [ 8496.137592][ T253] fib6_nh_init+0x3d8/0x1580 [ 8496.137592][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8496.137592][ T253] ip6_route_add+0x1c/0x140 [ 8496.137592][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8496.137592][ T253] addrconf_add_dev+0xe2/0x170 [ 8496.137592][ T253] inet6_addr_add+0x12f/0xa40 [ 8496.137592][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8496.137592][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8496.137592][ T253] netlink_rcv_skb+0x130/0x360 [ 8496.137592][ T253] netlink_unicast+0x449/0x710 [ 8496.137592][ T253] netlink_sendmsg+0x723/0xbe0 [ 8496.137592][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8496.137592][ T253] ___sys_sendmsg+0xee/0x170 [ 8496.137592][ T253] __sys_sendmsg+0xcd/0x170 [ 8496.137592][ T253] do_syscall_64+0xc6/0x1e0 [ 8496.137592][ T253] [ 8496.142556][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8496.142556][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8496.142556][ T253] ipv6_find_idev+0x102/0x170 [ 8496.142556][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8496.142556][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8496.142556][ T253] netlink_rcv_skb+0x130/0x360 [ 8496.142556][ T253] netlink_unicast+0x449/0x710 [ 8496.142556][ T253] netlink_sendmsg+0x723/0xbe0 [ 8496.142556][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8496.142556][ T253] ___sys_sendmsg+0xee/0x170 [ 8496.142556][ T253] __sys_sendmsg+0xcd/0x170 [ 8496.142556][ T253] do_syscall_64+0xc6/0x1e0 [ 8496.142556][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8496.142556][ T253] [ 8496.146329][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8496.146329][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8496.146329][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8496.146329][ T253] ipv6_find_idev+0x102/0x170 [ 8496.146329][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8496.146329][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8496.146329][ T253] netlink_rcv_skb+0x130/0x360 [ 8496.146329][ T253] netlink_unicast+0x449/0x710 [ 8496.146329][ T253] netlink_sendmsg+0x723/0xbe0 [ 8496.146329][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8496.146329][ T253] ___sys_sendmsg+0xee/0x170 [ 8496.146329][ T253] __sys_sendmsg+0xcd/0x170 [ 8496.146329][ T253] do_syscall_64+0xc6/0x1e0 [ 8496.146329][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8496.146329][ T253] [ 8506.386350][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8506.386851][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8506.386851][ T253] dst_init+0x84/0x4a0 [ 8506.386851][ T253] dst_alloc+0x97/0x150 [ 8506.386851][ T253] ip6_dst_alloc+0x23/0x90 [ 8506.386851][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8506.386851][ T253] ip6_pol_route+0x56f/0x840 [ 8506.386851][ T253] fib6_rule_lookup+0x334/0x630 [ 8506.386851][ T253] ip6_route_output_flags+0x259/0x480 [ 8506.386851][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8506.386851][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8506.386851][ T253] netlink_rcv_skb+0x130/0x360 [ 8506.386851][ T253] netlink_unicast+0x449/0x710 [ 8506.386851][ T253] netlink_sendmsg+0x723/0xbe0 [ 8506.386851][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8506.386851][ T253] ___sys_sendmsg+0xee/0x170 [ 8506.386851][ T253] __sys_sendmsg+0xcd/0x170 [ 8506.386851][ T253] do_syscall_64+0xc6/0x1e0 [ 8506.386851][ T253] [ 8506.389276][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8506.389276][ T253] netdev_get_by_index+0x5e/0x80 [ 8506.389276][ T253] fib6_nh_init+0x3d8/0x1580 [ 8506.389276][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8506.389276][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8506.389276][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8506.389276][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8506.389276][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8506.389276][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8506.389276][ T253] addrconf_dad_begin+0x310/0x670 [ 8506.389276][ T253] addrconf_dad_work+0x10b/0xab0 [ 8506.389276][ T253] process_one_work+0x84d/0x18a0 [ 8506.389276][ T253] worker_thread+0x587/0xd30 [ 8506.389276][ T253] kthread+0x28a/0x350 [ 8506.389276][ T253] ret_from_fork+0x31/0x70 [ 8506.389276][ T253] ret_from_fork_asm+0x1a/0x30 [ 8506.389276][ T253] [ 8506.391646][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8506.391646][ T253] netdev_get_by_index+0x5e/0x80 [ 8506.391646][ T253] fib6_nh_init+0x3d8/0x1580 [ 8506.391646][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8506.391646][ T253] ip6_route_add+0x1c/0x140 [ 8506.391646][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8506.391646][ T253] inet6_addr_add+0x4f8/0xa40 [ 8506.391646][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8506.391646][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8506.391646][ T253] netlink_rcv_skb+0x130/0x360 [ 8506.391646][ T253] netlink_unicast+0x449/0x710 [ 8506.391646][ T253] netlink_sendmsg+0x723/0xbe0 [ 8506.391646][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8506.391646][ T253] ___sys_sendmsg+0xee/0x170 [ 8506.391646][ T253] __sys_sendmsg+0xcd/0x170 [ 8506.391646][ T253] do_syscall_64+0xc6/0x1e0 [ 8506.391646][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8506.391646][ T253] [ 8506.394104][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8506.394104][ T253] netdev_get_by_index+0x5e/0x80 [ 8506.394104][ T253] fib6_nh_init+0x3d8/0x1580 [ 8506.394104][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8506.394104][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8506.394104][ T253] ipv6_add_addr+0x411/0x2000 [ 8506.394104][ T253] inet6_addr_add+0x30e/0xa40 [ 8506.394104][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8506.394104][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8506.394104][ T253] netlink_rcv_skb+0x130/0x360 [ 8506.394104][ T253] netlink_unicast+0x449/0x710 [ 8506.394104][ T253] netlink_sendmsg+0x723/0xbe0 [ 8506.394104][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8506.394104][ T253] ___sys_sendmsg+0xee/0x170 [ 8506.394104][ T253] __sys_sendmsg+0xcd/0x170 [ 8506.394104][ T253] do_syscall_64+0xc6/0x1e0 [ 8506.394104][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8506.394104][ T253] [ 8506.396567][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8506.396567][ T253] netdev_get_by_index+0x5e/0x80 [ 8506.396567][ T253] fib6_nh_init+0x3d8/0x1580 [ 8506.396567][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8506.396567][ T253] ip6_route_add+0x1c/0x140 [ 8506.396567][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8506.396567][ T253] addrconf_add_dev+0xe2/0x170 [ 8506.396567][ T253] inet6_addr_add+0x12f/0xa40 [ 8506.396567][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8506.396567][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8506.396567][ T253] netlink_rcv_skb+0x130/0x360 [ 8506.396567][ T253] netlink_unicast+0x449/0x710 [ 8506.396567][ T253] netlink_sendmsg+0x723/0xbe0 [ 8506.396567][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8506.396567][ T253] ___sys_sendmsg+0xee/0x170 [ 8506.396567][ T253] __sys_sendmsg+0xcd/0x170 [ 8506.396567][ T253] do_syscall_64+0xc6/0x1e0 [ 8506.396567][ T253] [ 8506.398992][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8506.398992][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8506.398992][ T253] ipv6_find_idev+0x102/0x170 [ 8506.398992][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8506.398992][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8506.398992][ T253] netlink_rcv_skb+0x130/0x360 [ 8506.398992][ T253] netlink_unicast+0x449/0x710 [ 8506.398992][ T253] netlink_sendmsg+0x723/0xbe0 [ 8506.398992][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8506.398992][ T253] ___sys_sendmsg+0xee/0x170 [ 8506.398992][ T253] __sys_sendmsg+0xcd/0x170 [ 8506.398992][ T253] do_syscall_64+0xc6/0x1e0 [ 8506.398992][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8506.398992][ T253] [ 8506.400902][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8506.400902][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8506.400902][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8506.400902][ T253] ipv6_find_idev+0x102/0x170 [ 8506.400902][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8506.400902][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8506.400902][ T253] netlink_rcv_skb+0x130/0x360 [ 8506.400902][ T253] netlink_unicast+0x449/0x710 [ 8506.400902][ T253] netlink_sendmsg+0x723/0xbe0 [ 8506.400902][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8506.400902][ T253] ___sys_sendmsg+0xee/0x170 [ 8506.400902][ T253] __sys_sendmsg+0xcd/0x170 [ 8506.400902][ T253] do_syscall_64+0xc6/0x1e0 [ 8506.400902][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8506.400902][ T253] [ 8516.642242][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8516.642766][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8516.642766][ T253] dst_init+0x84/0x4a0 [ 8516.642766][ T253] dst_alloc+0x97/0x150 [ 8516.642766][ T253] ip6_dst_alloc+0x23/0x90 [ 8516.642766][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8516.642766][ T253] ip6_pol_route+0x56f/0x840 [ 8516.642766][ T253] fib6_rule_lookup+0x334/0x630 [ 8516.642766][ T253] ip6_route_output_flags+0x259/0x480 [ 8516.642766][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8516.642766][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8516.642766][ T253] netlink_rcv_skb+0x130/0x360 [ 8516.642766][ T253] netlink_unicast+0x449/0x710 [ 8516.642766][ T253] netlink_sendmsg+0x723/0xbe0 [ 8516.642766][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8516.642766][ T253] ___sys_sendmsg+0xee/0x170 [ 8516.642766][ T253] __sys_sendmsg+0xcd/0x170 [ 8516.642766][ T253] do_syscall_64+0xc6/0x1e0 [ 8516.642766][ T253] [ 8516.644985][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8516.644985][ T253] netdev_get_by_index+0x5e/0x80 [ 8516.644985][ T253] fib6_nh_init+0x3d8/0x1580 [ 8516.644985][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8516.644985][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8516.644985][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8516.644985][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8516.644985][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8516.644985][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8516.644985][ T253] addrconf_dad_begin+0x310/0x670 [ 8516.644985][ T253] addrconf_dad_work+0x10b/0xab0 [ 8516.644985][ T253] process_one_work+0x84d/0x18a0 [ 8516.644985][ T253] worker_thread+0x587/0xd30 [ 8516.644985][ T253] kthread+0x28a/0x350 [ 8516.644985][ T253] ret_from_fork+0x31/0x70 [ 8516.644985][ T253] ret_from_fork_asm+0x1a/0x30 [ 8516.644985][ T253] [ 8516.647154][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8516.647154][ T253] netdev_get_by_index+0x5e/0x80 [ 8516.647154][ T253] fib6_nh_init+0x3d8/0x1580 [ 8516.647154][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8516.647154][ T253] ip6_route_add+0x1c/0x140 [ 8516.647154][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8516.647154][ T253] inet6_addr_add+0x4f8/0xa40 [ 8516.647154][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8516.647154][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8516.647154][ T253] netlink_rcv_skb+0x130/0x360 [ 8516.647154][ T253] netlink_unicast+0x449/0x710 [ 8516.647154][ T253] netlink_sendmsg+0x723/0xbe0 [ 8516.647154][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8516.647154][ T253] ___sys_sendmsg+0xee/0x170 [ 8516.647154][ T253] __sys_sendmsg+0xcd/0x170 [ 8516.647154][ T253] do_syscall_64+0xc6/0x1e0 [ 8516.647154][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8516.647154][ T253] [ 8516.649409][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8516.649409][ T253] netdev_get_by_index+0x5e/0x80 [ 8516.649409][ T253] fib6_nh_init+0x3d8/0x1580 [ 8516.649409][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8516.649409][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8516.649409][ T253] ipv6_add_addr+0x411/0x2000 [ 8516.649409][ T253] inet6_addr_add+0x30e/0xa40 [ 8516.649409][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8516.649409][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8516.649409][ T253] netlink_rcv_skb+0x130/0x360 [ 8516.649409][ T253] netlink_unicast+0x449/0x710 [ 8516.649409][ T253] netlink_sendmsg+0x723/0xbe0 [ 8516.649409][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8516.649409][ T253] ___sys_sendmsg+0xee/0x170 [ 8516.649409][ T253] __sys_sendmsg+0xcd/0x170 [ 8516.649409][ T253] do_syscall_64+0xc6/0x1e0 [ 8516.649409][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8516.649409][ T253] [ 8516.651695][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8516.651695][ T253] netdev_get_by_index+0x5e/0x80 [ 8516.651695][ T253] fib6_nh_init+0x3d8/0x1580 [ 8516.651695][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8516.651695][ T253] ip6_route_add+0x1c/0x140 [ 8516.651695][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8516.651695][ T253] addrconf_add_dev+0xe2/0x170 [ 8516.651695][ T253] inet6_addr_add+0x12f/0xa40 [ 8516.651695][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8516.651695][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8516.651695][ T253] netlink_rcv_skb+0x130/0x360 [ 8516.651695][ T253] netlink_unicast+0x449/0x710 [ 8516.651695][ T253] netlink_sendmsg+0x723/0xbe0 [ 8516.651695][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8516.651695][ T253] ___sys_sendmsg+0xee/0x170 [ 8516.651695][ T253] __sys_sendmsg+0xcd/0x170 [ 8516.651695][ T253] do_syscall_64+0xc6/0x1e0 [ 8516.651695][ T253] [ 8516.653927][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8516.653927][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8516.653927][ T253] ipv6_find_idev+0x102/0x170 [ 8516.653927][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8516.653927][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8516.653927][ T253] netlink_rcv_skb+0x130/0x360 [ 8516.653927][ T253] netlink_unicast+0x449/0x710 [ 8516.653927][ T253] netlink_sendmsg+0x723/0xbe0 [ 8516.653927][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8516.653927][ T253] ___sys_sendmsg+0xee/0x170 [ 8516.653927][ T253] __sys_sendmsg+0xcd/0x170 [ 8516.653927][ T253] do_syscall_64+0xc6/0x1e0 [ 8516.653927][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8516.653927][ T253] [ 8516.655661][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8516.655661][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8516.655661][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8516.655661][ T253] ipv6_find_idev+0x102/0x170 [ 8516.655661][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8516.655661][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8516.655661][ T253] netlink_rcv_skb+0x130/0x360 [ 8516.655661][ T253] netlink_unicast+0x449/0x710 [ 8516.655661][ T253] netlink_sendmsg+0x723/0xbe0 [ 8516.655661][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8516.655661][ T253] ___sys_sendmsg+0xee/0x170 [ 8516.655661][ T253] __sys_sendmsg+0xcd/0x170 [ 8516.655661][ T253] do_syscall_64+0xc6/0x1e0 [ 8516.655661][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8516.655661][ T253] [ 8526.874296][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8526.874710][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8526.874710][ T253] dst_init+0x84/0x4a0 [ 8526.874710][ T253] dst_alloc+0x97/0x150 [ 8526.874710][ T253] ip6_dst_alloc+0x23/0x90 [ 8526.874710][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8526.874710][ T253] ip6_pol_route+0x56f/0x840 [ 8526.874710][ T253] fib6_rule_lookup+0x334/0x630 [ 8526.874710][ T253] ip6_route_output_flags+0x259/0x480 [ 8526.874710][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8526.874710][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8526.874710][ T253] netlink_rcv_skb+0x130/0x360 [ 8526.874710][ T253] netlink_unicast+0x449/0x710 [ 8526.874710][ T253] netlink_sendmsg+0x723/0xbe0 [ 8526.874710][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8526.874710][ T253] ___sys_sendmsg+0xee/0x170 [ 8526.874710][ T253] __sys_sendmsg+0xcd/0x170 [ 8526.874710][ T253] do_syscall_64+0xc6/0x1e0 [ 8526.874710][ T253] [ 8526.876908][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8526.876908][ T253] netdev_get_by_index+0x5e/0x80 [ 8526.876908][ T253] fib6_nh_init+0x3d8/0x1580 [ 8526.876908][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8526.876908][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8526.876908][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8526.876908][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8526.876908][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8526.876908][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8526.876908][ T253] addrconf_dad_begin+0x310/0x670 [ 8526.876908][ T253] addrconf_dad_work+0x10b/0xab0 [ 8526.876908][ T253] process_one_work+0x84d/0x18a0 [ 8526.876908][ T253] worker_thread+0x587/0xd30 [ 8526.876908][ T253] kthread+0x28a/0x350 [ 8526.876908][ T253] ret_from_fork+0x31/0x70 [ 8526.876908][ T253] ret_from_fork_asm+0x1a/0x30 [ 8526.876908][ T253] [ 8526.879045][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8526.879045][ T253] netdev_get_by_index+0x5e/0x80 [ 8526.879045][ T253] fib6_nh_init+0x3d8/0x1580 [ 8526.879045][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8526.879045][ T253] ip6_route_add+0x1c/0x140 [ 8526.879045][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8526.879045][ T253] inet6_addr_add+0x4f8/0xa40 [ 8526.879045][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8526.879045][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8526.879045][ T253] netlink_rcv_skb+0x130/0x360 [ 8526.879045][ T253] netlink_unicast+0x449/0x710 [ 8526.879045][ T253] netlink_sendmsg+0x723/0xbe0 [ 8526.879045][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8526.879045][ T253] ___sys_sendmsg+0xee/0x170 [ 8526.879045][ T253] __sys_sendmsg+0xcd/0x170 [ 8526.879045][ T253] do_syscall_64+0xc6/0x1e0 [ 8526.879045][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8526.879045][ T253] [ 8526.881285][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8526.881285][ T253] netdev_get_by_index+0x5e/0x80 [ 8526.881285][ T253] fib6_nh_init+0x3d8/0x1580 [ 8526.881285][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8526.881285][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8526.881285][ T253] ipv6_add_addr+0x411/0x2000 [ 8526.881285][ T253] inet6_addr_add+0x30e/0xa40 [ 8526.881285][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8526.881285][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8526.881285][ T253] netlink_rcv_skb+0x130/0x360 [ 8526.881285][ T253] netlink_unicast+0x449/0x710 [ 8526.881285][ T253] netlink_sendmsg+0x723/0xbe0 [ 8526.881285][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8526.881285][ T253] ___sys_sendmsg+0xee/0x170 [ 8526.881285][ T253] __sys_sendmsg+0xcd/0x170 [ 8526.881285][ T253] do_syscall_64+0xc6/0x1e0 [ 8526.881285][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8526.881285][ T253] [ 8526.883529][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8526.883529][ T253] netdev_get_by_index+0x5e/0x80 [ 8526.883529][ T253] fib6_nh_init+0x3d8/0x1580 [ 8526.883529][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8526.883529][ T253] ip6_route_add+0x1c/0x140 [ 8526.883529][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8526.883529][ T253] addrconf_add_dev+0xe2/0x170 [ 8526.883529][ T253] inet6_addr_add+0x12f/0xa40 [ 8526.883529][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8526.883529][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8526.883529][ T253] netlink_rcv_skb+0x130/0x360 [ 8526.883529][ T253] netlink_unicast+0x449/0x710 [ 8526.883529][ T253] netlink_sendmsg+0x723/0xbe0 [ 8526.883529][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8526.883529][ T253] ___sys_sendmsg+0xee/0x170 [ 8526.883529][ T253] __sys_sendmsg+0xcd/0x170 [ 8526.883529][ T253] do_syscall_64+0xc6/0x1e0 [ 8526.883529][ T253] [ 8526.885721][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8526.885721][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8526.885721][ T253] ipv6_find_idev+0x102/0x170 [ 8526.885721][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8526.885721][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8526.885721][ T253] netlink_rcv_skb+0x130/0x360 [ 8526.885721][ T253] netlink_unicast+0x449/0x710 [ 8526.885721][ T253] netlink_sendmsg+0x723/0xbe0 [ 8526.885721][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8526.885721][ T253] ___sys_sendmsg+0xee/0x170 [ 8526.885721][ T253] __sys_sendmsg+0xcd/0x170 [ 8526.885721][ T253] do_syscall_64+0xc6/0x1e0 [ 8526.885721][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8526.885721][ T253] [ 8526.887433][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8526.887433][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8526.887433][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8526.887433][ T253] ipv6_find_idev+0x102/0x170 [ 8526.887433][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8526.887433][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8526.887433][ T253] netlink_rcv_skb+0x130/0x360 [ 8526.887433][ T253] netlink_unicast+0x449/0x710 [ 8526.887433][ T253] netlink_sendmsg+0x723/0xbe0 [ 8526.887433][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8526.887433][ T253] ___sys_sendmsg+0xee/0x170 [ 8526.887433][ T253] __sys_sendmsg+0xcd/0x170 [ 8526.887433][ T253] do_syscall_64+0xc6/0x1e0 [ 8526.887433][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8526.887433][ T253] [ 8537.138264][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8537.138746][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8537.138746][ T253] dst_init+0x84/0x4a0 [ 8537.138746][ T253] dst_alloc+0x97/0x150 [ 8537.138746][ T253] ip6_dst_alloc+0x23/0x90 [ 8537.138746][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8537.138746][ T253] ip6_pol_route+0x56f/0x840 [ 8537.138746][ T253] fib6_rule_lookup+0x334/0x630 [ 8537.138746][ T253] ip6_route_output_flags+0x259/0x480 [ 8537.138746][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8537.138746][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8537.138746][ T253] netlink_rcv_skb+0x130/0x360 [ 8537.138746][ T253] netlink_unicast+0x449/0x710 [ 8537.138746][ T253] netlink_sendmsg+0x723/0xbe0 [ 8537.138746][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8537.138746][ T253] ___sys_sendmsg+0xee/0x170 [ 8537.138746][ T253] __sys_sendmsg+0xcd/0x170 [ 8537.138746][ T253] do_syscall_64+0xc6/0x1e0 [ 8537.138746][ T253] [ 8537.140997][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8537.140997][ T253] netdev_get_by_index+0x5e/0x80 [ 8537.140997][ T253] fib6_nh_init+0x3d8/0x1580 [ 8537.140997][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8537.140997][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8537.140997][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8537.140997][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8537.140997][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8537.140997][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8537.140997][ T253] addrconf_dad_begin+0x310/0x670 [ 8537.140997][ T253] addrconf_dad_work+0x10b/0xab0 [ 8537.140997][ T253] process_one_work+0x84d/0x18a0 [ 8537.140997][ T253] worker_thread+0x587/0xd30 [ 8537.140997][ T253] kthread+0x28a/0x350 [ 8537.140997][ T253] ret_from_fork+0x31/0x70 [ 8537.140997][ T253] ret_from_fork_asm+0x1a/0x30 [ 8537.140997][ T253] [ 8537.143145][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8537.143145][ T253] netdev_get_by_index+0x5e/0x80 [ 8537.143145][ T253] fib6_nh_init+0x3d8/0x1580 [ 8537.143145][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8537.143145][ T253] ip6_route_add+0x1c/0x140 [ 8537.143145][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8537.143145][ T253] inet6_addr_add+0x4f8/0xa40 [ 8537.143145][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8537.143145][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8537.143145][ T253] netlink_rcv_skb+0x130/0x360 [ 8537.143145][ T253] netlink_unicast+0x449/0x710 [ 8537.143145][ T253] netlink_sendmsg+0x723/0xbe0 [ 8537.143145][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8537.143145][ T253] ___sys_sendmsg+0xee/0x170 [ 8537.143145][ T253] __sys_sendmsg+0xcd/0x170 [ 8537.143145][ T253] do_syscall_64+0xc6/0x1e0 [ 8537.143145][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8537.143145][ T253] [ 8537.145389][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8537.145389][ T253] netdev_get_by_index+0x5e/0x80 [ 8537.145389][ T253] fib6_nh_init+0x3d8/0x1580 [ 8537.145389][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8537.145389][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8537.145389][ T253] ipv6_add_addr+0x411/0x2000 [ 8537.145389][ T253] inet6_addr_add+0x30e/0xa40 [ 8537.145389][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8537.145389][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8537.145389][ T253] netlink_rcv_skb+0x130/0x360 [ 8537.145389][ T253] netlink_unicast+0x449/0x710 [ 8537.145389][ T253] netlink_sendmsg+0x723/0xbe0 [ 8537.145389][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8537.145389][ T253] ___sys_sendmsg+0xee/0x170 [ 8537.145389][ T253] __sys_sendmsg+0xcd/0x170 [ 8537.145389][ T253] do_syscall_64+0xc6/0x1e0 [ 8537.145389][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8537.145389][ T253] [ 8537.147643][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8537.147643][ T253] netdev_get_by_index+0x5e/0x80 [ 8537.147643][ T253] fib6_nh_init+0x3d8/0x1580 [ 8537.147643][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8537.147643][ T253] ip6_route_add+0x1c/0x140 [ 8537.147643][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8537.147643][ T253] addrconf_add_dev+0xe2/0x170 [ 8537.147643][ T253] inet6_addr_add+0x12f/0xa40 [ 8537.147643][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8537.147643][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8537.147643][ T253] netlink_rcv_skb+0x130/0x360 [ 8537.147643][ T253] netlink_unicast+0x449/0x710 [ 8537.147643][ T253] netlink_sendmsg+0x723/0xbe0 [ 8537.147643][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8537.147643][ T253] ___sys_sendmsg+0xee/0x170 [ 8537.147643][ T253] __sys_sendmsg+0xcd/0x170 [ 8537.147643][ T253] do_syscall_64+0xc6/0x1e0 [ 8537.147643][ T253] [ 8537.149871][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8537.149871][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8537.149871][ T253] ipv6_find_idev+0x102/0x170 [ 8537.149871][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8537.149871][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8537.149871][ T253] netlink_rcv_skb+0x130/0x360 [ 8537.149871][ T253] netlink_unicast+0x449/0x710 [ 8537.149871][ T253] netlink_sendmsg+0x723/0xbe0 [ 8537.149871][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8537.149871][ T253] ___sys_sendmsg+0xee/0x170 [ 8537.149871][ T253] __sys_sendmsg+0xcd/0x170 [ 8537.149871][ T253] do_syscall_64+0xc6/0x1e0 [ 8537.149871][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8537.149871][ T253] [ 8537.151608][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8537.151608][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8537.151608][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8537.151608][ T253] ipv6_find_idev+0x102/0x170 [ 8537.151608][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8537.151608][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8537.151608][ T253] netlink_rcv_skb+0x130/0x360 [ 8537.151608][ T253] netlink_unicast+0x449/0x710 [ 8537.151608][ T253] netlink_sendmsg+0x723/0xbe0 [ 8537.151608][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8537.151608][ T253] ___sys_sendmsg+0xee/0x170 [ 8537.151608][ T253] __sys_sendmsg+0xcd/0x170 [ 8537.151608][ T253] do_syscall_64+0xc6/0x1e0 [ 8537.151608][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8537.151608][ T253] [ 8547.402427][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8547.402921][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8547.402921][ T253] dst_init+0x84/0x4a0 [ 8547.402921][ T253] dst_alloc+0x97/0x150 [ 8547.402921][ T253] ip6_dst_alloc+0x23/0x90 [ 8547.402921][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8547.402921][ T253] ip6_pol_route+0x56f/0x840 [ 8547.402921][ T253] fib6_rule_lookup+0x334/0x630 [ 8547.402921][ T253] ip6_route_output_flags+0x259/0x480 [ 8547.402921][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8547.402921][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8547.402921][ T253] netlink_rcv_skb+0x130/0x360 [ 8547.402921][ T253] netlink_unicast+0x449/0x710 [ 8547.402921][ T253] netlink_sendmsg+0x723/0xbe0 [ 8547.402921][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8547.402921][ T253] ___sys_sendmsg+0xee/0x170 [ 8547.402921][ T253] __sys_sendmsg+0xcd/0x170 [ 8547.402921][ T253] do_syscall_64+0xc6/0x1e0 [ 8547.402921][ T253] [ 8547.405112][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8547.405112][ T253] netdev_get_by_index+0x5e/0x80 [ 8547.405112][ T253] fib6_nh_init+0x3d8/0x1580 [ 8547.405112][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8547.405112][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8547.405112][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8547.405112][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8547.405112][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8547.405112][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8547.405112][ T253] addrconf_dad_begin+0x310/0x670 [ 8547.405112][ T253] addrconf_dad_work+0x10b/0xab0 [ 8547.405112][ T253] process_one_work+0x84d/0x18a0 [ 8547.405112][ T253] worker_thread+0x587/0xd30 [ 8547.405112][ T253] kthread+0x28a/0x350 [ 8547.405112][ T253] ret_from_fork+0x31/0x70 [ 8547.405112][ T253] ret_from_fork_asm+0x1a/0x30 [ 8547.405112][ T253] [ 8547.407253][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8547.407253][ T253] netdev_get_by_index+0x5e/0x80 [ 8547.407253][ T253] fib6_nh_init+0x3d8/0x1580 [ 8547.407253][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8547.407253][ T253] ip6_route_add+0x1c/0x140 [ 8547.407253][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8547.407253][ T253] inet6_addr_add+0x4f8/0xa40 [ 8547.407253][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8547.407253][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8547.407253][ T253] netlink_rcv_skb+0x130/0x360 [ 8547.407253][ T253] netlink_unicast+0x449/0x710 [ 8547.407253][ T253] netlink_sendmsg+0x723/0xbe0 [ 8547.407253][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8547.407253][ T253] ___sys_sendmsg+0xee/0x170 [ 8547.407253][ T253] __sys_sendmsg+0xcd/0x170 [ 8547.407253][ T253] do_syscall_64+0xc6/0x1e0 [ 8547.407253][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8547.407253][ T253] [ 8547.409505][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8547.409505][ T253] netdev_get_by_index+0x5e/0x80 [ 8547.409505][ T253] fib6_nh_init+0x3d8/0x1580 [ 8547.409505][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8547.409505][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8547.409505][ T253] ipv6_add_addr+0x411/0x2000 [ 8547.409505][ T253] inet6_addr_add+0x30e/0xa40 [ 8547.409505][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8547.409505][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8547.409505][ T253] netlink_rcv_skb+0x130/0x360 [ 8547.409505][ T253] netlink_unicast+0x449/0x710 [ 8547.409505][ T253] netlink_sendmsg+0x723/0xbe0 [ 8547.409505][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8547.409505][ T253] ___sys_sendmsg+0xee/0x170 [ 8547.409505][ T253] __sys_sendmsg+0xcd/0x170 [ 8547.409505][ T253] do_syscall_64+0xc6/0x1e0 [ 8547.409505][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8547.409505][ T253] [ 8547.411781][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8547.411781][ T253] netdev_get_by_index+0x5e/0x80 [ 8547.411781][ T253] fib6_nh_init+0x3d8/0x1580 [ 8547.411781][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8547.411781][ T253] ip6_route_add+0x1c/0x140 [ 8547.411781][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8547.411781][ T253] addrconf_add_dev+0xe2/0x170 [ 8547.411781][ T253] inet6_addr_add+0x12f/0xa40 [ 8547.411781][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8547.411781][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8547.411781][ T253] netlink_rcv_skb+0x130/0x360 [ 8547.411781][ T253] netlink_unicast+0x449/0x710 [ 8547.411781][ T253] netlink_sendmsg+0x723/0xbe0 [ 8547.411781][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8547.411781][ T253] ___sys_sendmsg+0xee/0x170 [ 8547.411781][ T253] __sys_sendmsg+0xcd/0x170 [ 8547.411781][ T253] do_syscall_64+0xc6/0x1e0 [ 8547.411781][ T253] [ 8547.413984][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8547.413984][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8547.413984][ T253] ipv6_find_idev+0x102/0x170 [ 8547.413984][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8547.413984][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8547.413984][ T253] netlink_rcv_skb+0x130/0x360 [ 8547.413984][ T253] netlink_unicast+0x449/0x710 [ 8547.413984][ T253] netlink_sendmsg+0x723/0xbe0 [ 8547.413984][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8547.413984][ T253] ___sys_sendmsg+0xee/0x170 [ 8547.413984][ T253] __sys_sendmsg+0xcd/0x170 [ 8547.413984][ T253] do_syscall_64+0xc6/0x1e0 [ 8547.413984][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8547.413984][ T253] [ 8547.415714][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8547.415714][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8547.415714][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8547.415714][ T253] ipv6_find_idev+0x102/0x170 [ 8547.415714][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8547.415714][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8547.415714][ T253] netlink_rcv_skb+0x130/0x360 [ 8547.415714][ T253] netlink_unicast+0x449/0x710 [ 8547.415714][ T253] netlink_sendmsg+0x723/0xbe0 [ 8547.415714][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8547.415714][ T253] ___sys_sendmsg+0xee/0x170 [ 8547.415714][ T253] __sys_sendmsg+0xcd/0x170 [ 8547.415714][ T253] do_syscall_64+0xc6/0x1e0 [ 8547.415714][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8547.415714][ T253] [ 8557.530318][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8557.530754][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8557.530754][ T253] dst_init+0x84/0x4a0 [ 8557.530754][ T253] dst_alloc+0x97/0x150 [ 8557.530754][ T253] ip6_dst_alloc+0x23/0x90 [ 8557.530754][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8557.530754][ T253] ip6_pol_route+0x56f/0x840 [ 8557.530754][ T253] fib6_rule_lookup+0x334/0x630 [ 8557.530754][ T253] ip6_route_output_flags+0x259/0x480 [ 8557.530754][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8557.530754][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8557.530754][ T253] netlink_rcv_skb+0x130/0x360 [ 8557.530754][ T253] netlink_unicast+0x449/0x710 [ 8557.530754][ T253] netlink_sendmsg+0x723/0xbe0 [ 8557.530754][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8557.530754][ T253] ___sys_sendmsg+0xee/0x170 [ 8557.530754][ T253] __sys_sendmsg+0xcd/0x170 [ 8557.530754][ T253] do_syscall_64+0xc6/0x1e0 [ 8557.530754][ T253] [ 8557.532949][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8557.532949][ T253] netdev_get_by_index+0x5e/0x80 [ 8557.532949][ T253] fib6_nh_init+0x3d8/0x1580 [ 8557.532949][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8557.532949][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8557.532949][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8557.532949][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8557.532949][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8557.532949][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8557.532949][ T253] addrconf_dad_begin+0x310/0x670 [ 8557.532949][ T253] addrconf_dad_work+0x10b/0xab0 [ 8557.532949][ T253] process_one_work+0x84d/0x18a0 [ 8557.532949][ T253] worker_thread+0x587/0xd30 [ 8557.532949][ T253] kthread+0x28a/0x350 [ 8557.532949][ T253] ret_from_fork+0x31/0x70 [ 8557.532949][ T253] ret_from_fork_asm+0x1a/0x30 [ 8557.532949][ T253] [ 8557.535111][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8557.535111][ T253] netdev_get_by_index+0x5e/0x80 [ 8557.535111][ T253] fib6_nh_init+0x3d8/0x1580 [ 8557.535111][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8557.535111][ T253] ip6_route_add+0x1c/0x140 [ 8557.535111][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8557.535111][ T253] inet6_addr_add+0x4f8/0xa40 [ 8557.535111][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8557.535111][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8557.535111][ T253] netlink_rcv_skb+0x130/0x360 [ 8557.535111][ T253] netlink_unicast+0x449/0x710 [ 8557.535111][ T253] netlink_sendmsg+0x723/0xbe0 [ 8557.535111][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8557.535111][ T253] ___sys_sendmsg+0xee/0x170 [ 8557.535111][ T253] __sys_sendmsg+0xcd/0x170 [ 8557.535111][ T253] do_syscall_64+0xc6/0x1e0 [ 8557.535111][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8557.535111][ T253] [ 8557.537365][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8557.537365][ T253] netdev_get_by_index+0x5e/0x80 [ 8557.537365][ T253] fib6_nh_init+0x3d8/0x1580 [ 8557.537365][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8557.537365][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8557.537365][ T253] ipv6_add_addr+0x411/0x2000 [ 8557.537365][ T253] inet6_addr_add+0x30e/0xa40 [ 8557.537365][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8557.537365][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8557.537365][ T253] netlink_rcv_skb+0x130/0x360 [ 8557.537365][ T253] netlink_unicast+0x449/0x710 [ 8557.537365][ T253] netlink_sendmsg+0x723/0xbe0 [ 8557.537365][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8557.537365][ T253] ___sys_sendmsg+0xee/0x170 [ 8557.537365][ T253] __sys_sendmsg+0xcd/0x170 [ 8557.537365][ T253] do_syscall_64+0xc6/0x1e0 [ 8557.537365][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8557.537365][ T253] [ 8557.539612][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8557.539612][ T253] netdev_get_by_index+0x5e/0x80 [ 8557.539612][ T253] fib6_nh_init+0x3d8/0x1580 [ 8557.539612][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8557.539612][ T253] ip6_route_add+0x1c/0x140 [ 8557.539612][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8557.539612][ T253] addrconf_add_dev+0xe2/0x170 [ 8557.539612][ T253] inet6_addr_add+0x12f/0xa40 [ 8557.539612][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8557.539612][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8557.539612][ T253] netlink_rcv_skb+0x130/0x360 [ 8557.539612][ T253] netlink_unicast+0x449/0x710 [ 8557.539612][ T253] netlink_sendmsg+0x723/0xbe0 [ 8557.539612][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8557.539612][ T253] ___sys_sendmsg+0xee/0x170 [ 8557.539612][ T253] __sys_sendmsg+0xcd/0x170 [ 8557.539612][ T253] do_syscall_64+0xc6/0x1e0 [ 8557.539612][ T253] [ 8557.541840][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8557.541840][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8557.541840][ T253] ipv6_find_idev+0x102/0x170 [ 8557.541840][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8557.541840][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8557.541840][ T253] netlink_rcv_skb+0x130/0x360 [ 8557.541840][ T253] netlink_unicast+0x449/0x710 [ 8557.541840][ T253] netlink_sendmsg+0x723/0xbe0 [ 8557.541840][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8557.541840][ T253] ___sys_sendmsg+0xee/0x170 [ 8557.541840][ T253] __sys_sendmsg+0xcd/0x170 [ 8557.541840][ T253] do_syscall_64+0xc6/0x1e0 [ 8557.541840][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8557.541840][ T253] [ 8557.543569][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8557.543569][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8557.543569][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8557.543569][ T253] ipv6_find_idev+0x102/0x170 [ 8557.543569][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8557.543569][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8557.543569][ T253] netlink_rcv_skb+0x130/0x360 [ 8557.543569][ T253] netlink_unicast+0x449/0x710 [ 8557.543569][ T253] netlink_sendmsg+0x723/0xbe0 [ 8557.543569][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8557.543569][ T253] ___sys_sendmsg+0xee/0x170 [ 8557.543569][ T253] __sys_sendmsg+0xcd/0x170 [ 8557.543569][ T253] do_syscall_64+0xc6/0x1e0 [ 8557.543569][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8557.543569][ T253] [ 8567.586412][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8567.586914][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8567.586914][ T253] dst_init+0x84/0x4a0 [ 8567.586914][ T253] dst_alloc+0x97/0x150 [ 8567.586914][ T253] ip6_dst_alloc+0x23/0x90 [ 8567.586914][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8567.586914][ T253] ip6_pol_route+0x56f/0x840 [ 8567.586914][ T253] fib6_rule_lookup+0x334/0x630 [ 8567.586914][ T253] ip6_route_output_flags+0x259/0x480 [ 8567.586914][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8567.586914][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8567.586914][ T253] netlink_rcv_skb+0x130/0x360 [ 8567.586914][ T253] netlink_unicast+0x449/0x710 [ 8567.586914][ T253] netlink_sendmsg+0x723/0xbe0 [ 8567.586914][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8567.586914][ T253] ___sys_sendmsg+0xee/0x170 [ 8567.586914][ T253] __sys_sendmsg+0xcd/0x170 [ 8567.586914][ T253] do_syscall_64+0xc6/0x1e0 [ 8567.586914][ T253] [ 8567.589122][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8567.589122][ T253] netdev_get_by_index+0x5e/0x80 [ 8567.589122][ T253] fib6_nh_init+0x3d8/0x1580 [ 8567.589122][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8567.589122][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8567.589122][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8567.589122][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8567.589122][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8567.589122][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8567.589122][ T253] addrconf_dad_begin+0x310/0x670 [ 8567.589122][ T253] addrconf_dad_work+0x10b/0xab0 [ 8567.589122][ T253] process_one_work+0x84d/0x18a0 [ 8567.589122][ T253] worker_thread+0x587/0xd30 [ 8567.589122][ T253] kthread+0x28a/0x350 [ 8567.589122][ T253] ret_from_fork+0x31/0x70 [ 8567.589122][ T253] ret_from_fork_asm+0x1a/0x30 [ 8567.589122][ T253] [ 8567.591290][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8567.591290][ T253] netdev_get_by_index+0x5e/0x80 [ 8567.591290][ T253] fib6_nh_init+0x3d8/0x1580 [ 8567.591290][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8567.591290][ T253] ip6_route_add+0x1c/0x140 [ 8567.591290][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8567.591290][ T253] inet6_addr_add+0x4f8/0xa40 [ 8567.591290][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8567.591290][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8567.591290][ T253] netlink_rcv_skb+0x130/0x360 [ 8567.591290][ T253] netlink_unicast+0x449/0x710 [ 8567.591290][ T253] netlink_sendmsg+0x723/0xbe0 [ 8567.591290][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8567.591290][ T253] ___sys_sendmsg+0xee/0x170 [ 8567.591290][ T253] __sys_sendmsg+0xcd/0x170 [ 8567.591290][ T253] do_syscall_64+0xc6/0x1e0 [ 8567.591290][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8567.591290][ T253] [ 8567.593527][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8567.593527][ T253] netdev_get_by_index+0x5e/0x80 [ 8567.593527][ T253] fib6_nh_init+0x3d8/0x1580 [ 8567.593527][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8567.593527][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8567.593527][ T253] ipv6_add_addr+0x411/0x2000 [ 8567.593527][ T253] inet6_addr_add+0x30e/0xa40 [ 8567.593527][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8567.593527][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8567.593527][ T253] netlink_rcv_skb+0x130/0x360 [ 8567.593527][ T253] netlink_unicast+0x449/0x710 [ 8567.593527][ T253] netlink_sendmsg+0x723/0xbe0 [ 8567.593527][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8567.593527][ T253] ___sys_sendmsg+0xee/0x170 [ 8567.593527][ T253] __sys_sendmsg+0xcd/0x170 [ 8567.593527][ T253] do_syscall_64+0xc6/0x1e0 [ 8567.593527][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8567.593527][ T253] [ 8567.595761][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8567.595761][ T253] netdev_get_by_index+0x5e/0x80 [ 8567.595761][ T253] fib6_nh_init+0x3d8/0x1580 [ 8567.595761][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8567.595761][ T253] ip6_route_add+0x1c/0x140 [ 8567.595761][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8567.595761][ T253] addrconf_add_dev+0xe2/0x170 [ 8567.595761][ T253] inet6_addr_add+0x12f/0xa40 [ 8567.595761][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8567.595761][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8567.595761][ T253] netlink_rcv_skb+0x130/0x360 [ 8567.595761][ T253] netlink_unicast+0x449/0x710 [ 8567.595761][ T253] netlink_sendmsg+0x723/0xbe0 [ 8567.595761][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8567.595761][ T253] ___sys_sendmsg+0xee/0x170 [ 8567.595761][ T253] __sys_sendmsg+0xcd/0x170 [ 8567.595761][ T253] do_syscall_64+0xc6/0x1e0 [ 8567.595761][ T253] [ 8567.597961][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8567.597961][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8567.597961][ T253] ipv6_find_idev+0x102/0x170 [ 8567.597961][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8567.597961][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8567.597961][ T253] netlink_rcv_skb+0x130/0x360 [ 8567.597961][ T253] netlink_unicast+0x449/0x710 [ 8567.597961][ T253] netlink_sendmsg+0x723/0xbe0 [ 8567.597961][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8567.597961][ T253] ___sys_sendmsg+0xee/0x170 [ 8567.597961][ T253] __sys_sendmsg+0xcd/0x170 [ 8567.597961][ T253] do_syscall_64+0xc6/0x1e0 [ 8567.597961][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8567.597961][ T253] [ 8567.599688][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8567.599688][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8567.599688][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8567.599688][ T253] ipv6_find_idev+0x102/0x170 [ 8567.599688][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8567.599688][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8567.599688][ T253] netlink_rcv_skb+0x130/0x360 [ 8567.599688][ T253] netlink_unicast+0x449/0x710 [ 8567.599688][ T253] netlink_sendmsg+0x723/0xbe0 [ 8567.599688][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8567.599688][ T253] ___sys_sendmsg+0xee/0x170 [ 8567.599688][ T253] __sys_sendmsg+0xcd/0x170 [ 8567.599688][ T253] do_syscall_64+0xc6/0x1e0 [ 8567.599688][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8567.599688][ T253] [ 8577.842392][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8577.842995][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8577.842995][ T253] dst_init+0x84/0x4a0 [ 8577.842995][ T253] dst_alloc+0x97/0x150 [ 8577.842995][ T253] ip6_dst_alloc+0x23/0x90 [ 8577.842995][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8577.842995][ T253] ip6_pol_route+0x56f/0x840 [ 8577.842995][ T253] fib6_rule_lookup+0x334/0x630 [ 8577.842995][ T253] ip6_route_output_flags+0x259/0x480 [ 8577.842995][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8577.842995][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8577.842995][ T253] netlink_rcv_skb+0x130/0x360 [ 8577.842995][ T253] netlink_unicast+0x449/0x710 [ 8577.842995][ T253] netlink_sendmsg+0x723/0xbe0 [ 8577.842995][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8577.842995][ T253] ___sys_sendmsg+0xee/0x170 [ 8577.842995][ T253] __sys_sendmsg+0xcd/0x170 [ 8577.842995][ T253] do_syscall_64+0xc6/0x1e0 [ 8577.842995][ T253] [ 8577.846516][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8577.846516][ T253] netdev_get_by_index+0x5e/0x80 [ 8577.846516][ T253] fib6_nh_init+0x3d8/0x1580 [ 8577.846516][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8577.846516][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8577.846516][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8577.846516][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8577.846516][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8577.846516][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8577.846516][ T253] addrconf_dad_begin+0x310/0x670 [ 8577.846516][ T253] addrconf_dad_work+0x10b/0xab0 [ 8577.846516][ T253] process_one_work+0x84d/0x18a0 [ 8577.846516][ T253] worker_thread+0x587/0xd30 [ 8577.846516][ T253] kthread+0x28a/0x350 [ 8577.846516][ T253] ret_from_fork+0x31/0x70 [ 8577.846516][ T253] ret_from_fork_asm+0x1a/0x30 [ 8577.846516][ T253] [ 8577.848898][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8577.848898][ T253] netdev_get_by_index+0x5e/0x80 [ 8577.848898][ T253] fib6_nh_init+0x3d8/0x1580 [ 8577.848898][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8577.848898][ T253] ip6_route_add+0x1c/0x140 [ 8577.848898][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8577.848898][ T253] inet6_addr_add+0x4f8/0xa40 [ 8577.848898][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8577.848898][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8577.848898][ T253] netlink_rcv_skb+0x130/0x360 [ 8577.848898][ T253] netlink_unicast+0x449/0x710 [ 8577.848898][ T253] netlink_sendmsg+0x723/0xbe0 [ 8577.848898][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8577.848898][ T253] ___sys_sendmsg+0xee/0x170 [ 8577.848898][ T253] __sys_sendmsg+0xcd/0x170 [ 8577.848898][ T253] do_syscall_64+0xc6/0x1e0 [ 8577.848898][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8577.848898][ T253] [ 8577.851261][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8577.851261][ T253] netdev_get_by_index+0x5e/0x80 [ 8577.851261][ T253] fib6_nh_init+0x3d8/0x1580 [ 8577.851261][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8577.851261][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8577.851261][ T253] ipv6_add_addr+0x411/0x2000 [ 8577.851261][ T253] inet6_addr_add+0x30e/0xa40 [ 8577.851261][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8577.851261][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8577.851261][ T253] netlink_rcv_skb+0x130/0x360 [ 8577.851261][ T253] netlink_unicast+0x449/0x710 [ 8577.851261][ T253] netlink_sendmsg+0x723/0xbe0 [ 8577.851261][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8577.851261][ T253] ___sys_sendmsg+0xee/0x170 [ 8577.851261][ T253] __sys_sendmsg+0xcd/0x170 [ 8577.851261][ T253] do_syscall_64+0xc6/0x1e0 [ 8577.851261][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8577.851261][ T253] [ 8577.853542][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8577.853542][ T253] netdev_get_by_index+0x5e/0x80 [ 8577.853542][ T253] fib6_nh_init+0x3d8/0x1580 [ 8577.853542][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8577.853542][ T253] ip6_route_add+0x1c/0x140 [ 8577.853542][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8577.853542][ T253] addrconf_add_dev+0xe2/0x170 [ 8577.853542][ T253] inet6_addr_add+0x12f/0xa40 [ 8577.853542][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8577.853542][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8577.853542][ T253] netlink_rcv_skb+0x130/0x360 [ 8577.853542][ T253] netlink_unicast+0x449/0x710 [ 8577.853542][ T253] netlink_sendmsg+0x723/0xbe0 [ 8577.853542][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8577.853542][ T253] ___sys_sendmsg+0xee/0x170 [ 8577.853542][ T253] __sys_sendmsg+0xcd/0x170 [ 8577.853542][ T253] do_syscall_64+0xc6/0x1e0 [ 8577.853542][ T253] [ 8577.855822][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8577.855822][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8577.855822][ T253] ipv6_find_idev+0x102/0x170 [ 8577.855822][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8577.855822][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8577.855822][ T253] netlink_rcv_skb+0x130/0x360 [ 8577.855822][ T253] netlink_unicast+0x449/0x710 [ 8577.855822][ T253] netlink_sendmsg+0x723/0xbe0 [ 8577.855822][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8577.855822][ T253] ___sys_sendmsg+0xee/0x170 [ 8577.855822][ T253] __sys_sendmsg+0xcd/0x170 [ 8577.855822][ T253] do_syscall_64+0xc6/0x1e0 [ 8577.855822][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8577.855822][ T253] [ 8577.857603][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8577.857603][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8577.857603][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8577.857603][ T253] ipv6_find_idev+0x102/0x170 [ 8577.857603][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8577.857603][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8577.857603][ T253] netlink_rcv_skb+0x130/0x360 [ 8577.857603][ T253] netlink_unicast+0x449/0x710 [ 8577.857603][ T253] netlink_sendmsg+0x723/0xbe0 [ 8577.857603][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8577.857603][ T253] ___sys_sendmsg+0xee/0x170 [ 8577.857603][ T253] __sys_sendmsg+0xcd/0x170 [ 8577.857603][ T253] do_syscall_64+0xc6/0x1e0 [ 8577.857603][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8577.857603][ T253] [ 8587.866283][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8587.866873][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8587.866873][ T253] dst_init+0x84/0x4a0 [ 8587.866873][ T253] dst_alloc+0x97/0x150 [ 8587.866873][ T253] ip6_dst_alloc+0x23/0x90 [ 8587.866873][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8587.866873][ T253] ip6_pol_route+0x56f/0x840 [ 8587.866873][ T253] fib6_rule_lookup+0x334/0x630 [ 8587.866873][ T253] ip6_route_output_flags+0x259/0x480 [ 8587.866873][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8587.866873][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8587.866873][ T253] netlink_rcv_skb+0x130/0x360 [ 8587.866873][ T253] netlink_unicast+0x449/0x710 [ 8587.866873][ T253] netlink_sendmsg+0x723/0xbe0 [ 8587.866873][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8587.866873][ T253] ___sys_sendmsg+0xee/0x170 [ 8587.866873][ T253] __sys_sendmsg+0xcd/0x170 [ 8587.866873][ T253] do_syscall_64+0xc6/0x1e0 [ 8587.866873][ T253] [ 8587.869669][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8587.869669][ T253] netdev_get_by_index+0x5e/0x80 [ 8587.869669][ T253] fib6_nh_init+0x3d8/0x1580 [ 8587.869669][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8587.869669][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8587.869669][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8587.869669][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8587.869669][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8587.869669][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8587.869669][ T253] addrconf_dad_begin+0x310/0x670 [ 8587.869669][ T253] addrconf_dad_work+0x10b/0xab0 [ 8587.869669][ T253] process_one_work+0x84d/0x18a0 [ 8587.869669][ T253] worker_thread+0x587/0xd30 [ 8587.869669][ T253] kthread+0x28a/0x350 [ 8587.869669][ T253] ret_from_fork+0x31/0x70 [ 8587.869669][ T253] ret_from_fork_asm+0x1a/0x30 [ 8587.869669][ T253] [ 8587.871885][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8587.871885][ T253] netdev_get_by_index+0x5e/0x80 [ 8587.871885][ T253] fib6_nh_init+0x3d8/0x1580 [ 8587.871885][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8587.871885][ T253] ip6_route_add+0x1c/0x140 [ 8587.871885][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8587.871885][ T253] inet6_addr_add+0x4f8/0xa40 [ 8587.871885][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8587.871885][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8587.871885][ T253] netlink_rcv_skb+0x130/0x360 [ 8587.871885][ T253] netlink_unicast+0x449/0x710 [ 8587.871885][ T253] netlink_sendmsg+0x723/0xbe0 [ 8587.871885][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8587.871885][ T253] ___sys_sendmsg+0xee/0x170 [ 8587.871885][ T253] __sys_sendmsg+0xcd/0x170 [ 8587.871885][ T253] do_syscall_64+0xc6/0x1e0 [ 8587.871885][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8587.871885][ T253] [ 8587.875083][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8587.875083][ T253] netdev_get_by_index+0x5e/0x80 [ 8587.875083][ T253] fib6_nh_init+0x3d8/0x1580 [ 8587.875083][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8587.875083][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8587.875083][ T253] ipv6_add_addr+0x411/0x2000 [ 8587.875083][ T253] inet6_addr_add+0x30e/0xa40 [ 8587.875083][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8587.875083][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8587.875083][ T253] netlink_rcv_skb+0x130/0x360 [ 8587.875083][ T253] netlink_unicast+0x449/0x710 [ 8587.875083][ T253] netlink_sendmsg+0x723/0xbe0 [ 8587.875083][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8587.875083][ T253] ___sys_sendmsg+0xee/0x170 [ 8587.875083][ T253] __sys_sendmsg+0xcd/0x170 [ 8587.875083][ T253] do_syscall_64+0xc6/0x1e0 [ 8587.875083][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8587.875083][ T253] [ 8587.878707][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8587.878707][ T253] netdev_get_by_index+0x5e/0x80 [ 8587.878707][ T253] fib6_nh_init+0x3d8/0x1580 [ 8587.878707][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8587.878707][ T253] ip6_route_add+0x1c/0x140 [ 8587.878707][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8587.878707][ T253] addrconf_add_dev+0xe2/0x170 [ 8587.878707][ T253] inet6_addr_add+0x12f/0xa40 [ 8587.878707][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8587.878707][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8587.878707][ T253] netlink_rcv_skb+0x130/0x360 [ 8587.878707][ T253] netlink_unicast+0x449/0x710 [ 8587.878707][ T253] netlink_sendmsg+0x723/0xbe0 [ 8587.878707][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8587.878707][ T253] ___sys_sendmsg+0xee/0x170 [ 8587.878707][ T253] __sys_sendmsg+0xcd/0x170 [ 8587.878707][ T253] do_syscall_64+0xc6/0x1e0 [ 8587.878707][ T253] [ 8587.881682][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8587.881682][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8587.881682][ T253] ipv6_find_idev+0x102/0x170 [ 8587.881682][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8587.881682][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8587.881682][ T253] netlink_rcv_skb+0x130/0x360 [ 8587.881682][ T253] netlink_unicast+0x449/0x710 [ 8587.881682][ T253] netlink_sendmsg+0x723/0xbe0 [ 8587.881682][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8587.881682][ T253] ___sys_sendmsg+0xee/0x170 [ 8587.881682][ T253] __sys_sendmsg+0xcd/0x170 [ 8587.881682][ T253] do_syscall_64+0xc6/0x1e0 [ 8587.881682][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8587.881682][ T253] [ 8587.884452][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8587.884452][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8587.884452][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8587.884452][ T253] ipv6_find_idev+0x102/0x170 [ 8587.884452][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8587.884452][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8587.884452][ T253] netlink_rcv_skb+0x130/0x360 [ 8587.884452][ T253] netlink_unicast+0x449/0x710 [ 8587.884452][ T253] netlink_sendmsg+0x723/0xbe0 [ 8587.884452][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8587.884452][ T253] ___sys_sendmsg+0xee/0x170 [ 8587.884452][ T253] __sys_sendmsg+0xcd/0x170 [ 8587.884452][ T253] do_syscall_64+0xc6/0x1e0 [ 8587.884452][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8587.884452][ T253] [ 8598.106370][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8598.106874][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8598.106874][ T253] dst_init+0x84/0x4a0 [ 8598.106874][ T253] dst_alloc+0x97/0x150 [ 8598.106874][ T253] ip6_dst_alloc+0x23/0x90 [ 8598.106874][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8598.106874][ T253] ip6_pol_route+0x56f/0x840 [ 8598.106874][ T253] fib6_rule_lookup+0x334/0x630 [ 8598.106874][ T253] ip6_route_output_flags+0x259/0x480 [ 8598.106874][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8598.106874][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8598.106874][ T253] netlink_rcv_skb+0x130/0x360 [ 8598.106874][ T253] netlink_unicast+0x449/0x710 [ 8598.106874][ T253] netlink_sendmsg+0x723/0xbe0 [ 8598.106874][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8598.106874][ T253] ___sys_sendmsg+0xee/0x170 [ 8598.106874][ T253] __sys_sendmsg+0xcd/0x170 [ 8598.106874][ T253] do_syscall_64+0xc6/0x1e0 [ 8598.106874][ T253] [ 8598.109066][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8598.109066][ T253] netdev_get_by_index+0x5e/0x80 [ 8598.109066][ T253] fib6_nh_init+0x3d8/0x1580 [ 8598.109066][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8598.109066][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8598.109066][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8598.109066][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8598.109066][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8598.109066][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8598.109066][ T253] addrconf_dad_begin+0x310/0x670 [ 8598.109066][ T253] addrconf_dad_work+0x10b/0xab0 [ 8598.109066][ T253] process_one_work+0x84d/0x18a0 [ 8598.109066][ T253] worker_thread+0x587/0xd30 [ 8598.109066][ T253] kthread+0x28a/0x350 [ 8598.109066][ T253] ret_from_fork+0x31/0x70 [ 8598.109066][ T253] ret_from_fork_asm+0x1a/0x30 [ 8598.109066][ T253] [ 8598.111227][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8598.111227][ T253] netdev_get_by_index+0x5e/0x80 [ 8598.111227][ T253] fib6_nh_init+0x3d8/0x1580 [ 8598.111227][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8598.111227][ T253] ip6_route_add+0x1c/0x140 [ 8598.111227][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8598.111227][ T253] inet6_addr_add+0x4f8/0xa40 [ 8598.111227][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8598.111227][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8598.111227][ T253] netlink_rcv_skb+0x130/0x360 [ 8598.111227][ T253] netlink_unicast+0x449/0x710 [ 8598.111227][ T253] netlink_sendmsg+0x723/0xbe0 [ 8598.111227][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8598.111227][ T253] ___sys_sendmsg+0xee/0x170 [ 8598.111227][ T253] __sys_sendmsg+0xcd/0x170 [ 8598.111227][ T253] do_syscall_64+0xc6/0x1e0 [ 8598.111227][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8598.111227][ T253] [ 8598.113467][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8598.113467][ T253] netdev_get_by_index+0x5e/0x80 [ 8598.113467][ T253] fib6_nh_init+0x3d8/0x1580 [ 8598.113467][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8598.113467][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8598.113467][ T253] ipv6_add_addr+0x411/0x2000 [ 8598.113467][ T253] inet6_addr_add+0x30e/0xa40 [ 8598.113467][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8598.113467][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8598.113467][ T253] netlink_rcv_skb+0x130/0x360 [ 8598.113467][ T253] netlink_unicast+0x449/0x710 [ 8598.113467][ T253] netlink_sendmsg+0x723/0xbe0 [ 8598.113467][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8598.113467][ T253] ___sys_sendmsg+0xee/0x170 [ 8598.113467][ T253] __sys_sendmsg+0xcd/0x170 [ 8598.113467][ T253] do_syscall_64+0xc6/0x1e0 [ 8598.113467][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8598.113467][ T253] [ 8598.116215][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8598.116215][ T253] netdev_get_by_index+0x5e/0x80 [ 8598.116215][ T253] fib6_nh_init+0x3d8/0x1580 [ 8598.116215][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8598.116215][ T253] ip6_route_add+0x1c/0x140 [ 8598.116215][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8598.116215][ T253] addrconf_add_dev+0xe2/0x170 [ 8598.116215][ T253] inet6_addr_add+0x12f/0xa40 [ 8598.116215][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8598.116215][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8598.116215][ T253] netlink_rcv_skb+0x130/0x360 [ 8598.116215][ T253] netlink_unicast+0x449/0x710 [ 8598.116215][ T253] netlink_sendmsg+0x723/0xbe0 [ 8598.116215][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8598.116215][ T253] ___sys_sendmsg+0xee/0x170 [ 8598.116215][ T253] __sys_sendmsg+0xcd/0x170 [ 8598.116215][ T253] do_syscall_64+0xc6/0x1e0 [ 8598.116215][ T253] [ 8598.118414][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8598.118414][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8598.118414][ T253] ipv6_find_idev+0x102/0x170 [ 8598.118414][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8598.118414][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8598.118414][ T253] netlink_rcv_skb+0x130/0x360 [ 8598.118414][ T253] netlink_unicast+0x449/0x710 [ 8598.118414][ T253] netlink_sendmsg+0x723/0xbe0 [ 8598.118414][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8598.118414][ T253] ___sys_sendmsg+0xee/0x170 [ 8598.118414][ T253] __sys_sendmsg+0xcd/0x170 [ 8598.118414][ T253] do_syscall_64+0xc6/0x1e0 [ 8598.118414][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8598.118414][ T253] [ 8598.120195][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8598.120195][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8598.120195][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8598.120195][ T253] ipv6_find_idev+0x102/0x170 [ 8598.120195][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8598.120195][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8598.120195][ T253] netlink_rcv_skb+0x130/0x360 [ 8598.120195][ T253] netlink_unicast+0x449/0x710 [ 8598.120195][ T253] netlink_sendmsg+0x723/0xbe0 [ 8598.120195][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8598.120195][ T253] ___sys_sendmsg+0xee/0x170 [ 8598.120195][ T253] __sys_sendmsg+0xcd/0x170 [ 8598.120195][ T253] do_syscall_64+0xc6/0x1e0 [ 8598.120195][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8598.120195][ T253] [ 8608.338417][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8608.338874][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8608.338874][ T253] dst_init+0x84/0x4a0 [ 8608.338874][ T253] dst_alloc+0x97/0x150 [ 8608.338874][ T253] ip6_dst_alloc+0x23/0x90 [ 8608.338874][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8608.338874][ T253] ip6_pol_route+0x56f/0x840 [ 8608.338874][ T253] fib6_rule_lookup+0x334/0x630 [ 8608.338874][ T253] ip6_route_output_flags+0x259/0x480 [ 8608.338874][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8608.338874][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8608.338874][ T253] netlink_rcv_skb+0x130/0x360 [ 8608.338874][ T253] netlink_unicast+0x449/0x710 [ 8608.338874][ T253] netlink_sendmsg+0x723/0xbe0 [ 8608.338874][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8608.338874][ T253] ___sys_sendmsg+0xee/0x170 [ 8608.338874][ T253] __sys_sendmsg+0xcd/0x170 [ 8608.338874][ T253] do_syscall_64+0xc6/0x1e0 [ 8608.338874][ T253] [ 8608.341183][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8608.341183][ T253] netdev_get_by_index+0x5e/0x80 [ 8608.341183][ T253] fib6_nh_init+0x3d8/0x1580 [ 8608.341183][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8608.341183][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8608.341183][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8608.341183][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8608.341183][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8608.341183][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8608.341183][ T253] addrconf_dad_begin+0x310/0x670 [ 8608.341183][ T253] addrconf_dad_work+0x10b/0xab0 [ 8608.341183][ T253] process_one_work+0x84d/0x18a0 [ 8608.341183][ T253] worker_thread+0x587/0xd30 [ 8608.341183][ T253] kthread+0x28a/0x350 [ 8608.341183][ T253] ret_from_fork+0x31/0x70 [ 8608.341183][ T253] ret_from_fork_asm+0x1a/0x30 [ 8608.341183][ T253] [ 8608.343442][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8608.343442][ T253] netdev_get_by_index+0x5e/0x80 [ 8608.343442][ T253] fib6_nh_init+0x3d8/0x1580 [ 8608.343442][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8608.343442][ T253] ip6_route_add+0x1c/0x140 [ 8608.343442][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8608.343442][ T253] inet6_addr_add+0x4f8/0xa40 [ 8608.343442][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8608.343442][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8608.343442][ T253] netlink_rcv_skb+0x130/0x360 [ 8608.343442][ T253] netlink_unicast+0x449/0x710 [ 8608.343442][ T253] netlink_sendmsg+0x723/0xbe0 [ 8608.343442][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8608.343442][ T253] ___sys_sendmsg+0xee/0x170 [ 8608.343442][ T253] __sys_sendmsg+0xcd/0x170 [ 8608.343442][ T253] do_syscall_64+0xc6/0x1e0 [ 8608.343442][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8608.343442][ T253] [ 8608.345795][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8608.345795][ T253] netdev_get_by_index+0x5e/0x80 [ 8608.345795][ T253] fib6_nh_init+0x3d8/0x1580 [ 8608.345795][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8608.345795][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8608.345795][ T253] ipv6_add_addr+0x411/0x2000 [ 8608.345795][ T253] inet6_addr_add+0x30e/0xa40 [ 8608.345795][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8608.345795][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8608.345795][ T253] netlink_rcv_skb+0x130/0x360 [ 8608.345795][ T253] netlink_unicast+0x449/0x710 [ 8608.345795][ T253] netlink_sendmsg+0x723/0xbe0 [ 8608.345795][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8608.345795][ T253] ___sys_sendmsg+0xee/0x170 [ 8608.345795][ T253] __sys_sendmsg+0xcd/0x170 [ 8608.345795][ T253] do_syscall_64+0xc6/0x1e0 [ 8608.345795][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8608.345795][ T253] [ 8608.348148][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8608.348148][ T253] netdev_get_by_index+0x5e/0x80 [ 8608.348148][ T253] fib6_nh_init+0x3d8/0x1580 [ 8608.348148][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8608.348148][ T253] ip6_route_add+0x1c/0x140 [ 8608.348148][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8608.348148][ T253] addrconf_add_dev+0xe2/0x170 [ 8608.348148][ T253] inet6_addr_add+0x12f/0xa40 [ 8608.348148][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8608.348148][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8608.348148][ T253] netlink_rcv_skb+0x130/0x360 [ 8608.348148][ T253] netlink_unicast+0x449/0x710 [ 8608.348148][ T253] netlink_sendmsg+0x723/0xbe0 [ 8608.348148][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8608.348148][ T253] ___sys_sendmsg+0xee/0x170 [ 8608.348148][ T253] __sys_sendmsg+0xcd/0x170 [ 8608.348148][ T253] do_syscall_64+0xc6/0x1e0 [ 8608.348148][ T253] [ 8608.350477][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8608.350477][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8608.350477][ T253] ipv6_find_idev+0x102/0x170 [ 8608.350477][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8608.350477][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8608.350477][ T253] netlink_rcv_skb+0x130/0x360 [ 8608.350477][ T253] netlink_unicast+0x449/0x710 [ 8608.350477][ T253] netlink_sendmsg+0x723/0xbe0 [ 8608.350477][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8608.350477][ T253] ___sys_sendmsg+0xee/0x170 [ 8608.350477][ T253] __sys_sendmsg+0xcd/0x170 [ 8608.350477][ T253] do_syscall_64+0xc6/0x1e0 [ 8608.350477][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8608.350477][ T253] [ 8608.352288][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8608.352288][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8608.352288][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8608.352288][ T253] ipv6_find_idev+0x102/0x170 [ 8608.352288][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8608.352288][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8608.352288][ T253] netlink_rcv_skb+0x130/0x360 [ 8608.352288][ T253] netlink_unicast+0x449/0x710 [ 8608.352288][ T253] netlink_sendmsg+0x723/0xbe0 [ 8608.352288][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8608.352288][ T253] ___sys_sendmsg+0xee/0x170 [ 8608.352288][ T253] __sys_sendmsg+0xcd/0x170 [ 8608.352288][ T253] do_syscall_64+0xc6/0x1e0 [ 8608.352288][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8608.352288][ T253] [ 8618.594288][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8618.594882][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8618.594882][ T253] dst_init+0x84/0x4a0 [ 8618.594882][ T253] dst_alloc+0x97/0x150 [ 8618.594882][ T253] ip6_dst_alloc+0x23/0x90 [ 8618.594882][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8618.594882][ T253] ip6_pol_route+0x56f/0x840 [ 8618.594882][ T253] fib6_rule_lookup+0x334/0x630 [ 8618.594882][ T253] ip6_route_output_flags+0x259/0x480 [ 8618.594882][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8618.594882][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8618.594882][ T253] netlink_rcv_skb+0x130/0x360 [ 8618.594882][ T253] netlink_unicast+0x449/0x710 [ 8618.594882][ T253] netlink_sendmsg+0x723/0xbe0 [ 8618.594882][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8618.594882][ T253] ___sys_sendmsg+0xee/0x170 [ 8618.594882][ T253] __sys_sendmsg+0xcd/0x170 [ 8618.594882][ T253] do_syscall_64+0xc6/0x1e0 [ 8618.594882][ T253] [ 8618.597984][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8618.597984][ T253] netdev_get_by_index+0x5e/0x80 [ 8618.597984][ T253] fib6_nh_init+0x3d8/0x1580 [ 8618.597984][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8618.597984][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8618.597984][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8618.597984][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8618.597984][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8618.597984][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8618.597984][ T253] addrconf_dad_begin+0x310/0x670 [ 8618.597984][ T253] addrconf_dad_work+0x10b/0xab0 [ 8618.597984][ T253] process_one_work+0x84d/0x18a0 [ 8618.597984][ T253] worker_thread+0x587/0xd30 [ 8618.597984][ T253] kthread+0x28a/0x350 [ 8618.597984][ T253] ret_from_fork+0x31/0x70 [ 8618.597984][ T253] ret_from_fork_asm+0x1a/0x30 [ 8618.597984][ T253] [ 8618.601269][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8618.601269][ T253] netdev_get_by_index+0x5e/0x80 [ 8618.601269][ T253] fib6_nh_init+0x3d8/0x1580 [ 8618.601269][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8618.601269][ T253] ip6_route_add+0x1c/0x140 [ 8618.601269][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8618.601269][ T253] inet6_addr_add+0x4f8/0xa40 [ 8618.601269][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8618.601269][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8618.601269][ T253] netlink_rcv_skb+0x130/0x360 [ 8618.601269][ T253] netlink_unicast+0x449/0x710 [ 8618.601269][ T253] netlink_sendmsg+0x723/0xbe0 [ 8618.601269][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8618.601269][ T253] ___sys_sendmsg+0xee/0x170 [ 8618.601269][ T253] __sys_sendmsg+0xcd/0x170 [ 8618.601269][ T253] do_syscall_64+0xc6/0x1e0 [ 8618.601269][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8618.601269][ T253] [ 8618.604364][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8618.604364][ T253] netdev_get_by_index+0x5e/0x80 [ 8618.604364][ T253] fib6_nh_init+0x3d8/0x1580 [ 8618.604364][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8618.604364][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8618.604364][ T253] ipv6_add_addr+0x411/0x2000 [ 8618.604364][ T253] inet6_addr_add+0x30e/0xa40 [ 8618.604364][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8618.604364][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8618.604364][ T253] netlink_rcv_skb+0x130/0x360 [ 8618.604364][ T253] netlink_unicast+0x449/0x710 [ 8618.604364][ T253] netlink_sendmsg+0x723/0xbe0 [ 8618.604364][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8618.604364][ T253] ___sys_sendmsg+0xee/0x170 [ 8618.604364][ T253] __sys_sendmsg+0xcd/0x170 [ 8618.604364][ T253] do_syscall_64+0xc6/0x1e0 [ 8618.604364][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8618.604364][ T253] [ 8618.607801][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8618.607801][ T253] netdev_get_by_index+0x5e/0x80 [ 8618.607801][ T253] fib6_nh_init+0x3d8/0x1580 [ 8618.607801][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8618.607801][ T253] ip6_route_add+0x1c/0x140 [ 8618.607801][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8618.607801][ T253] addrconf_add_dev+0xe2/0x170 [ 8618.607801][ T253] inet6_addr_add+0x12f/0xa40 [ 8618.607801][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8618.607801][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8618.607801][ T253] netlink_rcv_skb+0x130/0x360 [ 8618.607801][ T253] netlink_unicast+0x449/0x710 [ 8618.607801][ T253] netlink_sendmsg+0x723/0xbe0 [ 8618.607801][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8618.607801][ T253] ___sys_sendmsg+0xee/0x170 [ 8618.607801][ T253] __sys_sendmsg+0xcd/0x170 [ 8618.607801][ T253] do_syscall_64+0xc6/0x1e0 [ 8618.607801][ T253] [ 8618.611151][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8618.611151][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8618.611151][ T253] ipv6_find_idev+0x102/0x170 [ 8618.611151][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8618.611151][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8618.611151][ T253] netlink_rcv_skb+0x130/0x360 [ 8618.611151][ T253] netlink_unicast+0x449/0x710 [ 8618.611151][ T253] netlink_sendmsg+0x723/0xbe0 [ 8618.611151][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8618.611151][ T253] ___sys_sendmsg+0xee/0x170 [ 8618.611151][ T253] __sys_sendmsg+0xcd/0x170 [ 8618.611151][ T253] do_syscall_64+0xc6/0x1e0 [ 8618.611151][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8618.611151][ T253] [ 8618.613503][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8618.613503][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8618.613503][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8618.613503][ T253] ipv6_find_idev+0x102/0x170 [ 8618.613503][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8618.613503][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8618.613503][ T253] netlink_rcv_skb+0x130/0x360 [ 8618.613503][ T253] netlink_unicast+0x449/0x710 [ 8618.613503][ T253] netlink_sendmsg+0x723/0xbe0 [ 8618.613503][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8618.613503][ T253] ___sys_sendmsg+0xee/0x170 [ 8618.613503][ T253] __sys_sendmsg+0xcd/0x170 [ 8618.613503][ T253] do_syscall_64+0xc6/0x1e0 [ 8618.613503][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8618.613503][ T253] [ 8628.738281][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8628.738708][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8628.738708][ T253] dst_init+0x84/0x4a0 [ 8628.738708][ T253] dst_alloc+0x97/0x150 [ 8628.738708][ T253] ip6_dst_alloc+0x23/0x90 [ 8628.738708][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8628.738708][ T253] ip6_pol_route+0x56f/0x840 [ 8628.738708][ T253] fib6_rule_lookup+0x334/0x630 [ 8628.738708][ T253] ip6_route_output_flags+0x259/0x480 [ 8628.738708][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8628.738708][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8628.738708][ T253] netlink_rcv_skb+0x130/0x360 [ 8628.738708][ T253] netlink_unicast+0x449/0x710 [ 8628.738708][ T253] netlink_sendmsg+0x723/0xbe0 [ 8628.738708][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8628.738708][ T253] ___sys_sendmsg+0xee/0x170 [ 8628.738708][ T253] __sys_sendmsg+0xcd/0x170 [ 8628.738708][ T253] do_syscall_64+0xc6/0x1e0 [ 8628.738708][ T253] [ 8628.740896][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8628.740896][ T253] netdev_get_by_index+0x5e/0x80 [ 8628.740896][ T253] fib6_nh_init+0x3d8/0x1580 [ 8628.740896][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8628.740896][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8628.740896][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8628.740896][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8628.740896][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8628.740896][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8628.740896][ T253] addrconf_dad_begin+0x310/0x670 [ 8628.740896][ T253] addrconf_dad_work+0x10b/0xab0 [ 8628.740896][ T253] process_one_work+0x84d/0x18a0 [ 8628.740896][ T253] worker_thread+0x587/0xd30 [ 8628.740896][ T253] kthread+0x28a/0x350 [ 8628.740896][ T253] ret_from_fork+0x31/0x70 [ 8628.740896][ T253] ret_from_fork_asm+0x1a/0x30 [ 8628.740896][ T253] [ 8628.743045][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8628.743045][ T253] netdev_get_by_index+0x5e/0x80 [ 8628.743045][ T253] fib6_nh_init+0x3d8/0x1580 [ 8628.743045][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8628.743045][ T253] ip6_route_add+0x1c/0x140 [ 8628.743045][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8628.743045][ T253] inet6_addr_add+0x4f8/0xa40 [ 8628.743045][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8628.743045][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8628.743045][ T253] netlink_rcv_skb+0x130/0x360 [ 8628.743045][ T253] netlink_unicast+0x449/0x710 [ 8628.743045][ T253] netlink_sendmsg+0x723/0xbe0 [ 8628.743045][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8628.743045][ T253] ___sys_sendmsg+0xee/0x170 [ 8628.743045][ T253] __sys_sendmsg+0xcd/0x170 [ 8628.743045][ T253] do_syscall_64+0xc6/0x1e0 [ 8628.743045][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8628.743045][ T253] [ 8628.745277][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8628.745277][ T253] netdev_get_by_index+0x5e/0x80 [ 8628.745277][ T253] fib6_nh_init+0x3d8/0x1580 [ 8628.745277][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8628.745277][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8628.745277][ T253] ipv6_add_addr+0x411/0x2000 [ 8628.745277][ T253] inet6_addr_add+0x30e/0xa40 [ 8628.745277][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8628.745277][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8628.745277][ T253] netlink_rcv_skb+0x130/0x360 [ 8628.745277][ T253] netlink_unicast+0x449/0x710 [ 8628.745277][ T253] netlink_sendmsg+0x723/0xbe0 [ 8628.745277][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8628.745277][ T253] ___sys_sendmsg+0xee/0x170 [ 8628.745277][ T253] __sys_sendmsg+0xcd/0x170 [ 8628.745277][ T253] do_syscall_64+0xc6/0x1e0 [ 8628.745277][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8628.745277][ T253] [ 8628.747515][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8628.747515][ T253] netdev_get_by_index+0x5e/0x80 [ 8628.747515][ T253] fib6_nh_init+0x3d8/0x1580 [ 8628.747515][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8628.747515][ T253] ip6_route_add+0x1c/0x140 [ 8628.747515][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8628.747515][ T253] addrconf_add_dev+0xe2/0x170 [ 8628.747515][ T253] inet6_addr_add+0x12f/0xa40 [ 8628.747515][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8628.747515][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8628.747515][ T253] netlink_rcv_skb+0x130/0x360 [ 8628.747515][ T253] netlink_unicast+0x449/0x710 [ 8628.747515][ T253] netlink_sendmsg+0x723/0xbe0 [ 8628.747515][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8628.747515][ T253] ___sys_sendmsg+0xee/0x170 [ 8628.747515][ T253] __sys_sendmsg+0xcd/0x170 [ 8628.747515][ T253] do_syscall_64+0xc6/0x1e0 [ 8628.747515][ T253] [ 8628.749713][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8628.749713][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8628.749713][ T253] ipv6_find_idev+0x102/0x170 [ 8628.749713][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8628.749713][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8628.749713][ T253] netlink_rcv_skb+0x130/0x360 [ 8628.749713][ T253] netlink_unicast+0x449/0x710 [ 8628.749713][ T253] netlink_sendmsg+0x723/0xbe0 [ 8628.749713][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8628.749713][ T253] ___sys_sendmsg+0xee/0x170 [ 8628.749713][ T253] __sys_sendmsg+0xcd/0x170 [ 8628.749713][ T253] do_syscall_64+0xc6/0x1e0 [ 8628.749713][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8628.749713][ T253] [ 8628.751448][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8628.751448][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8628.751448][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8628.751448][ T253] ipv6_find_idev+0x102/0x170 [ 8628.751448][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8628.751448][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8628.751448][ T253] netlink_rcv_skb+0x130/0x360 [ 8628.751448][ T253] netlink_unicast+0x449/0x710 [ 8628.751448][ T253] netlink_sendmsg+0x723/0xbe0 [ 8628.751448][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8628.751448][ T253] ___sys_sendmsg+0xee/0x170 [ 8628.751448][ T253] __sys_sendmsg+0xcd/0x170 [ 8628.751448][ T253] do_syscall_64+0xc6/0x1e0 [ 8628.751448][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8628.751448][ T253] [ 8638.850258][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8638.850889][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8638.850889][ T253] dst_init+0x84/0x4a0 [ 8638.850889][ T253] dst_alloc+0x97/0x150 [ 8638.850889][ T253] ip6_dst_alloc+0x23/0x90 [ 8638.850889][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8638.850889][ T253] ip6_pol_route+0x56f/0x840 [ 8638.850889][ T253] fib6_rule_lookup+0x334/0x630 [ 8638.850889][ T253] ip6_route_output_flags+0x259/0x480 [ 8638.850889][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8638.850889][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8638.850889][ T253] netlink_rcv_skb+0x130/0x360 [ 8638.850889][ T253] netlink_unicast+0x449/0x710 [ 8638.850889][ T253] netlink_sendmsg+0x723/0xbe0 [ 8638.850889][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8638.850889][ T253] ___sys_sendmsg+0xee/0x170 [ 8638.850889][ T253] __sys_sendmsg+0xcd/0x170 [ 8638.850889][ T253] do_syscall_64+0xc6/0x1e0 [ 8638.850889][ T253] [ 8638.854604][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8638.854604][ T253] netdev_get_by_index+0x5e/0x80 [ 8638.854604][ T253] fib6_nh_init+0x3d8/0x1580 [ 8638.854604][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8638.854604][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8638.854604][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8638.854604][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8638.854604][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8638.854604][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8638.854604][ T253] addrconf_dad_begin+0x310/0x670 [ 8638.854604][ T253] addrconf_dad_work+0x10b/0xab0 [ 8638.854604][ T253] process_one_work+0x84d/0x18a0 [ 8638.854604][ T253] worker_thread+0x587/0xd30 [ 8638.854604][ T253] kthread+0x28a/0x350 [ 8638.854604][ T253] ret_from_fork+0x31/0x70 [ 8638.854604][ T253] ret_from_fork_asm+0x1a/0x30 [ 8638.854604][ T253] [ 8638.857663][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8638.857663][ T253] netdev_get_by_index+0x5e/0x80 [ 8638.857663][ T253] fib6_nh_init+0x3d8/0x1580 [ 8638.857663][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8638.857663][ T253] ip6_route_add+0x1c/0x140 [ 8638.857663][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8638.857663][ T253] inet6_addr_add+0x4f8/0xa40 [ 8638.857663][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8638.857663][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8638.857663][ T253] netlink_rcv_skb+0x130/0x360 [ 8638.857663][ T253] netlink_unicast+0x449/0x710 [ 8638.857663][ T253] netlink_sendmsg+0x723/0xbe0 [ 8638.857663][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8638.857663][ T253] ___sys_sendmsg+0xee/0x170 [ 8638.857663][ T253] __sys_sendmsg+0xcd/0x170 [ 8638.857663][ T253] do_syscall_64+0xc6/0x1e0 [ 8638.857663][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8638.857663][ T253] [ 8638.860950][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8638.860950][ T253] netdev_get_by_index+0x5e/0x80 [ 8638.860950][ T253] fib6_nh_init+0x3d8/0x1580 [ 8638.860950][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8638.860950][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8638.860950][ T253] ipv6_add_addr+0x411/0x2000 [ 8638.860950][ T253] inet6_addr_add+0x30e/0xa40 [ 8638.860950][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8638.860950][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8638.860950][ T253] netlink_rcv_skb+0x130/0x360 [ 8638.860950][ T253] netlink_unicast+0x449/0x710 [ 8638.860950][ T253] netlink_sendmsg+0x723/0xbe0 [ 8638.860950][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8638.860950][ T253] ___sys_sendmsg+0xee/0x170 [ 8638.860950][ T253] __sys_sendmsg+0xcd/0x170 [ 8638.860950][ T253] do_syscall_64+0xc6/0x1e0 [ 8638.860950][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8638.860950][ T253] [ 8638.864788][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8638.864788][ T253] netdev_get_by_index+0x5e/0x80 [ 8638.864788][ T253] fib6_nh_init+0x3d8/0x1580 [ 8638.864788][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8638.864788][ T253] ip6_route_add+0x1c/0x140 [ 8638.864788][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8638.864788][ T253] addrconf_add_dev+0xe2/0x170 [ 8638.864788][ T253] inet6_addr_add+0x12f/0xa40 [ 8638.864788][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8638.864788][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8638.864788][ T253] netlink_rcv_skb+0x130/0x360 [ 8638.864788][ T253] netlink_unicast+0x449/0x710 [ 8638.864788][ T253] netlink_sendmsg+0x723/0xbe0 [ 8638.864788][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8638.864788][ T253] ___sys_sendmsg+0xee/0x170 [ 8638.864788][ T253] __sys_sendmsg+0xcd/0x170 [ 8638.864788][ T253] do_syscall_64+0xc6/0x1e0 [ 8638.864788][ T253] [ 8638.868328][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8638.868328][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8638.868328][ T253] ipv6_find_idev+0x102/0x170 [ 8638.868328][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8638.868328][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8638.868328][ T253] netlink_rcv_skb+0x130/0x360 [ 8638.868328][ T253] netlink_unicast+0x449/0x710 [ 8638.868328][ T253] netlink_sendmsg+0x723/0xbe0 [ 8638.868328][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8638.868328][ T253] ___sys_sendmsg+0xee/0x170 [ 8638.868328][ T253] __sys_sendmsg+0xcd/0x170 [ 8638.868328][ T253] do_syscall_64+0xc6/0x1e0 [ 8638.868328][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8638.868328][ T253] [ 8638.870315][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8638.870315][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8638.870315][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8638.870315][ T253] ipv6_find_idev+0x102/0x170 [ 8638.870315][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8638.870315][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8638.870315][ T253] netlink_rcv_skb+0x130/0x360 [ 8638.870315][ T253] netlink_unicast+0x449/0x710 [ 8638.870315][ T253] netlink_sendmsg+0x723/0xbe0 [ 8638.870315][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8638.870315][ T253] ___sys_sendmsg+0xee/0x170 [ 8638.870315][ T253] __sys_sendmsg+0xcd/0x170 [ 8638.870315][ T253] do_syscall_64+0xc6/0x1e0 [ 8638.870315][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8638.870315][ T253] [ 8649.114324][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8649.114796][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8649.114796][ T253] dst_init+0x84/0x4a0 [ 8649.114796][ T253] dst_alloc+0x97/0x150 [ 8649.114796][ T253] ip6_dst_alloc+0x23/0x90 [ 8649.114796][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8649.114796][ T253] ip6_pol_route+0x56f/0x840 [ 8649.114796][ T253] fib6_rule_lookup+0x334/0x630 [ 8649.114796][ T253] ip6_route_output_flags+0x259/0x480 [ 8649.114796][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8649.114796][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8649.114796][ T253] netlink_rcv_skb+0x130/0x360 [ 8649.114796][ T253] netlink_unicast+0x449/0x710 [ 8649.114796][ T253] netlink_sendmsg+0x723/0xbe0 [ 8649.114796][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8649.114796][ T253] ___sys_sendmsg+0xee/0x170 [ 8649.114796][ T253] __sys_sendmsg+0xcd/0x170 [ 8649.114796][ T253] do_syscall_64+0xc6/0x1e0 [ 8649.114796][ T253] [ 8649.117004][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8649.117004][ T253] netdev_get_by_index+0x5e/0x80 [ 8649.117004][ T253] fib6_nh_init+0x3d8/0x1580 [ 8649.117004][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8649.117004][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8649.117004][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8649.117004][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8649.117004][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8649.117004][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8649.117004][ T253] addrconf_dad_begin+0x310/0x670 [ 8649.117004][ T253] addrconf_dad_work+0x10b/0xab0 [ 8649.117004][ T253] process_one_work+0x84d/0x18a0 [ 8649.117004][ T253] worker_thread+0x587/0xd30 [ 8649.117004][ T253] kthread+0x28a/0x350 [ 8649.117004][ T253] ret_from_fork+0x31/0x70 [ 8649.117004][ T253] ret_from_fork_asm+0x1a/0x30 [ 8649.117004][ T253] [ 8649.119271][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8649.119271][ T253] netdev_get_by_index+0x5e/0x80 [ 8649.119271][ T253] fib6_nh_init+0x3d8/0x1580 [ 8649.119271][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8649.119271][ T253] ip6_route_add+0x1c/0x140 [ 8649.119271][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8649.119271][ T253] inet6_addr_add+0x4f8/0xa40 [ 8649.119271][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8649.119271][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8649.119271][ T253] netlink_rcv_skb+0x130/0x360 [ 8649.119271][ T253] netlink_unicast+0x449/0x710 [ 8649.119271][ T253] netlink_sendmsg+0x723/0xbe0 [ 8649.119271][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8649.119271][ T253] ___sys_sendmsg+0xee/0x170 [ 8649.119271][ T253] __sys_sendmsg+0xcd/0x170 [ 8649.119271][ T253] do_syscall_64+0xc6/0x1e0 [ 8649.119271][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8649.119271][ T253] [ 8649.121782][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8649.121782][ T253] netdev_get_by_index+0x5e/0x80 [ 8649.121782][ T253] fib6_nh_init+0x3d8/0x1580 [ 8649.121782][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8649.121782][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8649.121782][ T253] ipv6_add_addr+0x411/0x2000 [ 8649.121782][ T253] inet6_addr_add+0x30e/0xa40 [ 8649.121782][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8649.121782][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8649.121782][ T253] netlink_rcv_skb+0x130/0x360 [ 8649.121782][ T253] netlink_unicast+0x449/0x710 [ 8649.121782][ T253] netlink_sendmsg+0x723/0xbe0 [ 8649.121782][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8649.121782][ T253] ___sys_sendmsg+0xee/0x170 [ 8649.121782][ T253] __sys_sendmsg+0xcd/0x170 [ 8649.121782][ T253] do_syscall_64+0xc6/0x1e0 [ 8649.121782][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8649.121782][ T253] [ 8649.124285][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8649.124285][ T253] netdev_get_by_index+0x5e/0x80 [ 8649.124285][ T253] fib6_nh_init+0x3d8/0x1580 [ 8649.124285][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8649.124285][ T253] ip6_route_add+0x1c/0x140 [ 8649.124285][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8649.124285][ T253] addrconf_add_dev+0xe2/0x170 [ 8649.124285][ T253] inet6_addr_add+0x12f/0xa40 [ 8649.124285][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8649.124285][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8649.124285][ T253] netlink_rcv_skb+0x130/0x360 [ 8649.124285][ T253] netlink_unicast+0x449/0x710 [ 8649.124285][ T253] netlink_sendmsg+0x723/0xbe0 [ 8649.124285][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8649.124285][ T253] ___sys_sendmsg+0xee/0x170 [ 8649.124285][ T253] __sys_sendmsg+0xcd/0x170 [ 8649.124285][ T253] do_syscall_64+0xc6/0x1e0 [ 8649.124285][ T253] [ 8649.126733][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8649.126733][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8649.126733][ T253] ipv6_find_idev+0x102/0x170 [ 8649.126733][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8649.126733][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8649.126733][ T253] netlink_rcv_skb+0x130/0x360 [ 8649.126733][ T253] netlink_unicast+0x449/0x710 [ 8649.126733][ T253] netlink_sendmsg+0x723/0xbe0 [ 8649.126733][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8649.126733][ T253] ___sys_sendmsg+0xee/0x170 [ 8649.126733][ T253] __sys_sendmsg+0xcd/0x170 [ 8649.126733][ T253] do_syscall_64+0xc6/0x1e0 [ 8649.126733][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8649.126733][ T253] [ 8649.128635][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8649.128635][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8649.128635][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8649.128635][ T253] ipv6_find_idev+0x102/0x170 [ 8649.128635][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8649.128635][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8649.128635][ T253] netlink_rcv_skb+0x130/0x360 [ 8649.128635][ T253] netlink_unicast+0x449/0x710 [ 8649.128635][ T253] netlink_sendmsg+0x723/0xbe0 [ 8649.128635][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8649.128635][ T253] ___sys_sendmsg+0xee/0x170 [ 8649.128635][ T253] __sys_sendmsg+0xcd/0x170 [ 8649.128635][ T253] do_syscall_64+0xc6/0x1e0 [ 8649.128635][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8649.128635][ T253] [ 8659.370264][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8659.370687][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8659.370687][ T253] dst_init+0x84/0x4a0 [ 8659.370687][ T253] dst_alloc+0x97/0x150 [ 8659.370687][ T253] ip6_dst_alloc+0x23/0x90 [ 8659.370687][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8659.370687][ T253] ip6_pol_route+0x56f/0x840 [ 8659.370687][ T253] fib6_rule_lookup+0x334/0x630 [ 8659.370687][ T253] ip6_route_output_flags+0x259/0x480 [ 8659.370687][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8659.370687][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8659.370687][ T253] netlink_rcv_skb+0x130/0x360 [ 8659.370687][ T253] netlink_unicast+0x449/0x710 [ 8659.370687][ T253] netlink_sendmsg+0x723/0xbe0 [ 8659.370687][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8659.370687][ T253] ___sys_sendmsg+0xee/0x170 [ 8659.370687][ T253] __sys_sendmsg+0xcd/0x170 [ 8659.370687][ T253] do_syscall_64+0xc6/0x1e0 [ 8659.370687][ T253] [ 8659.373385][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8659.373385][ T253] netdev_get_by_index+0x5e/0x80 [ 8659.373385][ T253] fib6_nh_init+0x3d8/0x1580 [ 8659.373385][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8659.373385][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8659.373385][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8659.373385][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8659.373385][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8659.373385][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8659.373385][ T253] addrconf_dad_begin+0x310/0x670 [ 8659.373385][ T253] addrconf_dad_work+0x10b/0xab0 [ 8659.373385][ T253] process_one_work+0x84d/0x18a0 [ 8659.373385][ T253] worker_thread+0x587/0xd30 [ 8659.373385][ T253] kthread+0x28a/0x350 [ 8659.373385][ T253] ret_from_fork+0x31/0x70 [ 8659.373385][ T253] ret_from_fork_asm+0x1a/0x30 [ 8659.373385][ T253] [ 8659.375533][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8659.375533][ T253] netdev_get_by_index+0x5e/0x80 [ 8659.375533][ T253] fib6_nh_init+0x3d8/0x1580 [ 8659.375533][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8659.375533][ T253] ip6_route_add+0x1c/0x140 [ 8659.375533][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8659.375533][ T253] inet6_addr_add+0x4f8/0xa40 [ 8659.375533][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8659.375533][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8659.375533][ T253] netlink_rcv_skb+0x130/0x360 [ 8659.375533][ T253] netlink_unicast+0x449/0x710 [ 8659.375533][ T253] netlink_sendmsg+0x723/0xbe0 [ 8659.375533][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8659.375533][ T253] ___sys_sendmsg+0xee/0x170 [ 8659.375533][ T253] __sys_sendmsg+0xcd/0x170 [ 8659.375533][ T253] do_syscall_64+0xc6/0x1e0 [ 8659.375533][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8659.375533][ T253] [ 8659.377766][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8659.377766][ T253] netdev_get_by_index+0x5e/0x80 [ 8659.377766][ T253] fib6_nh_init+0x3d8/0x1580 [ 8659.377766][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8659.377766][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8659.377766][ T253] ipv6_add_addr+0x411/0x2000 [ 8659.377766][ T253] inet6_addr_add+0x30e/0xa40 [ 8659.377766][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8659.377766][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8659.377766][ T253] netlink_rcv_skb+0x130/0x360 [ 8659.377766][ T253] netlink_unicast+0x449/0x710 [ 8659.377766][ T253] netlink_sendmsg+0x723/0xbe0 [ 8659.377766][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8659.377766][ T253] ___sys_sendmsg+0xee/0x170 [ 8659.377766][ T253] __sys_sendmsg+0xcd/0x170 [ 8659.377766][ T253] do_syscall_64+0xc6/0x1e0 [ 8659.377766][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8659.377766][ T253] [ 8659.380071][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8659.380071][ T253] netdev_get_by_index+0x5e/0x80 [ 8659.380071][ T253] fib6_nh_init+0x3d8/0x1580 [ 8659.380071][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8659.380071][ T253] ip6_route_add+0x1c/0x140 [ 8659.380071][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8659.380071][ T253] addrconf_add_dev+0xe2/0x170 [ 8659.380071][ T253] inet6_addr_add+0x12f/0xa40 [ 8659.380071][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8659.380071][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8659.380071][ T253] netlink_rcv_skb+0x130/0x360 [ 8659.380071][ T253] netlink_unicast+0x449/0x710 [ 8659.380071][ T253] netlink_sendmsg+0x723/0xbe0 [ 8659.380071][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8659.380071][ T253] ___sys_sendmsg+0xee/0x170 [ 8659.380071][ T253] __sys_sendmsg+0xcd/0x170 [ 8659.380071][ T253] do_syscall_64+0xc6/0x1e0 [ 8659.380071][ T253] [ 8659.382270][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8659.382270][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8659.382270][ T253] ipv6_find_idev+0x102/0x170 [ 8659.382270][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8659.382270][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8659.382270][ T253] netlink_rcv_skb+0x130/0x360 [ 8659.382270][ T253] netlink_unicast+0x449/0x710 [ 8659.382270][ T253] netlink_sendmsg+0x723/0xbe0 [ 8659.382270][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8659.382270][ T253] ___sys_sendmsg+0xee/0x170 [ 8659.382270][ T253] __sys_sendmsg+0xcd/0x170 [ 8659.382270][ T253] do_syscall_64+0xc6/0x1e0 [ 8659.382270][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8659.382270][ T253] [ 8659.383992][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8659.383992][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8659.383992][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8659.383992][ T253] ipv6_find_idev+0x102/0x170 [ 8659.383992][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8659.383992][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8659.383992][ T253] netlink_rcv_skb+0x130/0x360 [ 8659.383992][ T253] netlink_unicast+0x449/0x710 [ 8659.383992][ T253] netlink_sendmsg+0x723/0xbe0 [ 8659.383992][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8659.383992][ T253] ___sys_sendmsg+0xee/0x170 [ 8659.383992][ T253] __sys_sendmsg+0xcd/0x170 [ 8659.383992][ T253] do_syscall_64+0xc6/0x1e0 [ 8659.383992][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8659.383992][ T253] [ 8669.458261][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8669.458703][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8669.458703][ T253] dst_init+0x84/0x4a0 [ 8669.458703][ T253] dst_alloc+0x97/0x150 [ 8669.458703][ T253] ip6_dst_alloc+0x23/0x90 [ 8669.458703][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8669.458703][ T253] ip6_pol_route+0x56f/0x840 [ 8669.458703][ T253] fib6_rule_lookup+0x334/0x630 [ 8669.458703][ T253] ip6_route_output_flags+0x259/0x480 [ 8669.458703][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8669.458703][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8669.458703][ T253] netlink_rcv_skb+0x130/0x360 [ 8669.458703][ T253] netlink_unicast+0x449/0x710 [ 8669.458703][ T253] netlink_sendmsg+0x723/0xbe0 [ 8669.458703][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8669.458703][ T253] ___sys_sendmsg+0xee/0x170 [ 8669.458703][ T253] __sys_sendmsg+0xcd/0x170 [ 8669.458703][ T253] do_syscall_64+0xc6/0x1e0 [ 8669.458703][ T253] [ 8669.460927][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8669.460927][ T253] netdev_get_by_index+0x5e/0x80 [ 8669.460927][ T253] fib6_nh_init+0x3d8/0x1580 [ 8669.460927][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8669.460927][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8669.460927][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8669.460927][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8669.460927][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8669.460927][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8669.460927][ T253] addrconf_dad_begin+0x310/0x670 [ 8669.460927][ T253] addrconf_dad_work+0x10b/0xab0 [ 8669.460927][ T253] process_one_work+0x84d/0x18a0 [ 8669.460927][ T253] worker_thread+0x587/0xd30 [ 8669.460927][ T253] kthread+0x28a/0x350 [ 8669.460927][ T253] ret_from_fork+0x31/0x70 [ 8669.460927][ T253] ret_from_fork_asm+0x1a/0x30 [ 8669.460927][ T253] [ 8669.463093][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8669.463093][ T253] netdev_get_by_index+0x5e/0x80 [ 8669.463093][ T253] fib6_nh_init+0x3d8/0x1580 [ 8669.463093][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8669.463093][ T253] ip6_route_add+0x1c/0x140 [ 8669.463093][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8669.463093][ T253] inet6_addr_add+0x4f8/0xa40 [ 8669.463093][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8669.463093][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8669.463093][ T253] netlink_rcv_skb+0x130/0x360 [ 8669.463093][ T253] netlink_unicast+0x449/0x710 [ 8669.463093][ T253] netlink_sendmsg+0x723/0xbe0 [ 8669.463093][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8669.463093][ T253] ___sys_sendmsg+0xee/0x170 [ 8669.463093][ T253] __sys_sendmsg+0xcd/0x170 [ 8669.463093][ T253] do_syscall_64+0xc6/0x1e0 [ 8669.463093][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8669.463093][ T253] [ 8669.465348][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8669.465348][ T253] netdev_get_by_index+0x5e/0x80 [ 8669.465348][ T253] fib6_nh_init+0x3d8/0x1580 [ 8669.465348][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8669.465348][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8669.465348][ T253] ipv6_add_addr+0x411/0x2000 [ 8669.465348][ T253] inet6_addr_add+0x30e/0xa40 [ 8669.465348][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8669.465348][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8669.465348][ T253] netlink_rcv_skb+0x130/0x360 [ 8669.465348][ T253] netlink_unicast+0x449/0x710 [ 8669.465348][ T253] netlink_sendmsg+0x723/0xbe0 [ 8669.465348][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8669.465348][ T253] ___sys_sendmsg+0xee/0x170 [ 8669.465348][ T253] __sys_sendmsg+0xcd/0x170 [ 8669.465348][ T253] do_syscall_64+0xc6/0x1e0 [ 8669.465348][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8669.465348][ T253] [ 8669.467617][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8669.467617][ T253] netdev_get_by_index+0x5e/0x80 [ 8669.467617][ T253] fib6_nh_init+0x3d8/0x1580 [ 8669.467617][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8669.467617][ T253] ip6_route_add+0x1c/0x140 [ 8669.467617][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8669.467617][ T253] addrconf_add_dev+0xe2/0x170 [ 8669.467617][ T253] inet6_addr_add+0x12f/0xa40 [ 8669.467617][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8669.467617][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8669.467617][ T253] netlink_rcv_skb+0x130/0x360 [ 8669.467617][ T253] netlink_unicast+0x449/0x710 [ 8669.467617][ T253] netlink_sendmsg+0x723/0xbe0 [ 8669.467617][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8669.467617][ T253] ___sys_sendmsg+0xee/0x170 [ 8669.467617][ T253] __sys_sendmsg+0xcd/0x170 [ 8669.467617][ T253] do_syscall_64+0xc6/0x1e0 [ 8669.467617][ T253] [ 8669.469868][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8669.469868][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8669.469868][ T253] ipv6_find_idev+0x102/0x170 [ 8669.469868][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8669.469868][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8669.469868][ T253] netlink_rcv_skb+0x130/0x360 [ 8669.469868][ T253] netlink_unicast+0x449/0x710 [ 8669.469868][ T253] netlink_sendmsg+0x723/0xbe0 [ 8669.469868][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8669.469868][ T253] ___sys_sendmsg+0xee/0x170 [ 8669.469868][ T253] __sys_sendmsg+0xcd/0x170 [ 8669.469868][ T253] do_syscall_64+0xc6/0x1e0 [ 8669.469868][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8669.469868][ T253] [ 8669.471608][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8669.471608][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8669.471608][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8669.471608][ T253] ipv6_find_idev+0x102/0x170 [ 8669.471608][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8669.471608][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8669.471608][ T253] netlink_rcv_skb+0x130/0x360 [ 8669.471608][ T253] netlink_unicast+0x449/0x710 [ 8669.471608][ T253] netlink_sendmsg+0x723/0xbe0 [ 8669.471608][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8669.471608][ T253] ___sys_sendmsg+0xee/0x170 [ 8669.471608][ T253] __sys_sendmsg+0xcd/0x170 [ 8669.471608][ T253] do_syscall_64+0xc6/0x1e0 [ 8669.471608][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8669.471608][ T253] [ 8679.666318][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8679.666790][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8679.666790][ T253] dst_init+0x84/0x4a0 [ 8679.666790][ T253] dst_alloc+0x97/0x150 [ 8679.666790][ T253] ip6_dst_alloc+0x23/0x90 [ 8679.666790][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8679.666790][ T253] ip6_pol_route+0x56f/0x840 [ 8679.666790][ T253] fib6_rule_lookup+0x334/0x630 [ 8679.666790][ T253] ip6_route_output_flags+0x259/0x480 [ 8679.666790][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8679.666790][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8679.666790][ T253] netlink_rcv_skb+0x130/0x360 [ 8679.666790][ T253] netlink_unicast+0x449/0x710 [ 8679.666790][ T253] netlink_sendmsg+0x723/0xbe0 [ 8679.666790][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8679.666790][ T253] ___sys_sendmsg+0xee/0x170 [ 8679.666790][ T253] __sys_sendmsg+0xcd/0x170 [ 8679.666790][ T253] do_syscall_64+0xc6/0x1e0 [ 8679.666790][ T253] [ 8679.668986][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8679.668986][ T253] netdev_get_by_index+0x5e/0x80 [ 8679.668986][ T253] fib6_nh_init+0x3d8/0x1580 [ 8679.668986][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8679.668986][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8679.668986][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8679.668986][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8679.668986][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8679.668986][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8679.668986][ T253] addrconf_dad_begin+0x310/0x670 [ 8679.668986][ T253] addrconf_dad_work+0x10b/0xab0 [ 8679.668986][ T253] process_one_work+0x84d/0x18a0 [ 8679.668986][ T253] worker_thread+0x587/0xd30 [ 8679.668986][ T253] kthread+0x28a/0x350 [ 8679.668986][ T253] ret_from_fork+0x31/0x70 [ 8679.668986][ T253] ret_from_fork_asm+0x1a/0x30 [ 8679.668986][ T253] [ 8679.671131][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8679.671131][ T253] netdev_get_by_index+0x5e/0x80 [ 8679.671131][ T253] fib6_nh_init+0x3d8/0x1580 [ 8679.671131][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8679.671131][ T253] ip6_route_add+0x1c/0x140 [ 8679.671131][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8679.671131][ T253] inet6_addr_add+0x4f8/0xa40 [ 8679.671131][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8679.671131][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8679.671131][ T253] netlink_rcv_skb+0x130/0x360 [ 8679.671131][ T253] netlink_unicast+0x449/0x710 [ 8679.671131][ T253] netlink_sendmsg+0x723/0xbe0 [ 8679.671131][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8679.671131][ T253] ___sys_sendmsg+0xee/0x170 [ 8679.671131][ T253] __sys_sendmsg+0xcd/0x170 [ 8679.671131][ T253] do_syscall_64+0xc6/0x1e0 [ 8679.671131][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8679.671131][ T253] [ 8679.673368][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8679.673368][ T253] netdev_get_by_index+0x5e/0x80 [ 8679.673368][ T253] fib6_nh_init+0x3d8/0x1580 [ 8679.673368][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8679.673368][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8679.673368][ T253] ipv6_add_addr+0x411/0x2000 [ 8679.673368][ T253] inet6_addr_add+0x30e/0xa40 [ 8679.673368][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8679.673368][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8679.673368][ T253] netlink_rcv_skb+0x130/0x360 [ 8679.673368][ T253] netlink_unicast+0x449/0x710 [ 8679.673368][ T253] netlink_sendmsg+0x723/0xbe0 [ 8679.673368][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8679.673368][ T253] ___sys_sendmsg+0xee/0x170 [ 8679.673368][ T253] __sys_sendmsg+0xcd/0x170 [ 8679.673368][ T253] do_syscall_64+0xc6/0x1e0 [ 8679.673368][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8679.673368][ T253] [ 8679.675602][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8679.675602][ T253] netdev_get_by_index+0x5e/0x80 [ 8679.675602][ T253] fib6_nh_init+0x3d8/0x1580 [ 8679.675602][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8679.675602][ T253] ip6_route_add+0x1c/0x140 [ 8679.675602][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8679.675602][ T253] addrconf_add_dev+0xe2/0x170 [ 8679.675602][ T253] inet6_addr_add+0x12f/0xa40 [ 8679.675602][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8679.675602][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8679.675602][ T253] netlink_rcv_skb+0x130/0x360 [ 8679.675602][ T253] netlink_unicast+0x449/0x710 [ 8679.675602][ T253] netlink_sendmsg+0x723/0xbe0 [ 8679.675602][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8679.675602][ T253] ___sys_sendmsg+0xee/0x170 [ 8679.675602][ T253] __sys_sendmsg+0xcd/0x170 [ 8679.675602][ T253] do_syscall_64+0xc6/0x1e0 [ 8679.675602][ T253] [ 8679.677808][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8679.677808][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8679.677808][ T253] ipv6_find_idev+0x102/0x170 [ 8679.677808][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8679.677808][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8679.677808][ T253] netlink_rcv_skb+0x130/0x360 [ 8679.677808][ T253] netlink_unicast+0x449/0x710 [ 8679.677808][ T253] netlink_sendmsg+0x723/0xbe0 [ 8679.677808][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8679.677808][ T253] ___sys_sendmsg+0xee/0x170 [ 8679.677808][ T253] __sys_sendmsg+0xcd/0x170 [ 8679.677808][ T253] do_syscall_64+0xc6/0x1e0 [ 8679.677808][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8679.677808][ T253] [ 8679.679529][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8679.679529][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8679.679529][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8679.679529][ T253] ipv6_find_idev+0x102/0x170 [ 8679.679529][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8679.679529][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8679.679529][ T253] netlink_rcv_skb+0x130/0x360 [ 8679.679529][ T253] netlink_unicast+0x449/0x710 [ 8679.679529][ T253] netlink_sendmsg+0x723/0xbe0 [ 8679.679529][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8679.679529][ T253] ___sys_sendmsg+0xee/0x170 [ 8679.679529][ T253] __sys_sendmsg+0xcd/0x170 [ 8679.679529][ T253] do_syscall_64+0xc6/0x1e0 [ 8679.679529][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8679.679529][ T253] [ 8689.762255][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8689.762668][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8689.762668][ T253] dst_init+0x84/0x4a0 [ 8689.762668][ T253] dst_alloc+0x97/0x150 [ 8689.762668][ T253] ip6_dst_alloc+0x23/0x90 [ 8689.762668][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8689.762668][ T253] ip6_pol_route+0x56f/0x840 [ 8689.762668][ T253] fib6_rule_lookup+0x334/0x630 [ 8689.762668][ T253] ip6_route_output_flags+0x259/0x480 [ 8689.762668][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8689.762668][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8689.762668][ T253] netlink_rcv_skb+0x130/0x360 [ 8689.762668][ T253] netlink_unicast+0x449/0x710 [ 8689.762668][ T253] netlink_sendmsg+0x723/0xbe0 [ 8689.762668][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8689.762668][ T253] ___sys_sendmsg+0xee/0x170 [ 8689.762668][ T253] __sys_sendmsg+0xcd/0x170 [ 8689.762668][ T253] do_syscall_64+0xc6/0x1e0 [ 8689.762668][ T253] [ 8689.764871][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8689.764871][ T253] netdev_get_by_index+0x5e/0x80 [ 8689.764871][ T253] fib6_nh_init+0x3d8/0x1580 [ 8689.764871][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8689.764871][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8689.764871][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8689.764871][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8689.764871][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8689.764871][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8689.764871][ T253] addrconf_dad_begin+0x310/0x670 [ 8689.764871][ T253] addrconf_dad_work+0x10b/0xab0 [ 8689.764871][ T253] process_one_work+0x84d/0x18a0 [ 8689.764871][ T253] worker_thread+0x587/0xd30 [ 8689.764871][ T253] kthread+0x28a/0x350 [ 8689.764871][ T253] ret_from_fork+0x31/0x70 [ 8689.764871][ T253] ret_from_fork_asm+0x1a/0x30 [ 8689.764871][ T253] [ 8689.767033][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8689.767033][ T253] netdev_get_by_index+0x5e/0x80 [ 8689.767033][ T253] fib6_nh_init+0x3d8/0x1580 [ 8689.767033][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8689.767033][ T253] ip6_route_add+0x1c/0x140 [ 8689.767033][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8689.767033][ T253] inet6_addr_add+0x4f8/0xa40 [ 8689.767033][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8689.767033][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8689.767033][ T253] netlink_rcv_skb+0x130/0x360 [ 8689.767033][ T253] netlink_unicast+0x449/0x710 [ 8689.767033][ T253] netlink_sendmsg+0x723/0xbe0 [ 8689.767033][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8689.767033][ T253] ___sys_sendmsg+0xee/0x170 [ 8689.767033][ T253] __sys_sendmsg+0xcd/0x170 [ 8689.767033][ T253] do_syscall_64+0xc6/0x1e0 [ 8689.767033][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8689.767033][ T253] [ 8689.769284][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8689.769284][ T253] netdev_get_by_index+0x5e/0x80 [ 8689.769284][ T253] fib6_nh_init+0x3d8/0x1580 [ 8689.769284][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8689.769284][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8689.769284][ T253] ipv6_add_addr+0x411/0x2000 [ 8689.769284][ T253] inet6_addr_add+0x30e/0xa40 [ 8689.769284][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8689.769284][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8689.769284][ T253] netlink_rcv_skb+0x130/0x360 [ 8689.769284][ T253] netlink_unicast+0x449/0x710 [ 8689.769284][ T253] netlink_sendmsg+0x723/0xbe0 [ 8689.769284][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8689.769284][ T253] ___sys_sendmsg+0xee/0x170 [ 8689.769284][ T253] __sys_sendmsg+0xcd/0x170 [ 8689.769284][ T253] do_syscall_64+0xc6/0x1e0 [ 8689.769284][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8689.769284][ T253] [ 8689.771544][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8689.771544][ T253] netdev_get_by_index+0x5e/0x80 [ 8689.771544][ T253] fib6_nh_init+0x3d8/0x1580 [ 8689.771544][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8689.771544][ T253] ip6_route_add+0x1c/0x140 [ 8689.771544][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8689.771544][ T253] addrconf_add_dev+0xe2/0x170 [ 8689.771544][ T253] inet6_addr_add+0x12f/0xa40 [ 8689.771544][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8689.771544][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8689.771544][ T253] netlink_rcv_skb+0x130/0x360 [ 8689.771544][ T253] netlink_unicast+0x449/0x710 [ 8689.771544][ T253] netlink_sendmsg+0x723/0xbe0 [ 8689.771544][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8689.771544][ T253] ___sys_sendmsg+0xee/0x170 [ 8689.771544][ T253] __sys_sendmsg+0xcd/0x170 [ 8689.771544][ T253] do_syscall_64+0xc6/0x1e0 [ 8689.771544][ T253] [ 8689.773753][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8689.773753][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8689.773753][ T253] ipv6_find_idev+0x102/0x170 [ 8689.773753][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8689.773753][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8689.773753][ T253] netlink_rcv_skb+0x130/0x360 [ 8689.773753][ T253] netlink_unicast+0x449/0x710 [ 8689.773753][ T253] netlink_sendmsg+0x723/0xbe0 [ 8689.773753][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8689.773753][ T253] ___sys_sendmsg+0xee/0x170 [ 8689.773753][ T253] __sys_sendmsg+0xcd/0x170 [ 8689.773753][ T253] do_syscall_64+0xc6/0x1e0 [ 8689.773753][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8689.773753][ T253] [ 8689.775481][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8689.775481][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8689.775481][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8689.775481][ T253] ipv6_find_idev+0x102/0x170 [ 8689.775481][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8689.775481][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8689.775481][ T253] netlink_rcv_skb+0x130/0x360 [ 8689.775481][ T253] netlink_unicast+0x449/0x710 [ 8689.775481][ T253] netlink_sendmsg+0x723/0xbe0 [ 8689.775481][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8689.775481][ T253] ___sys_sendmsg+0xee/0x170 [ 8689.775481][ T253] __sys_sendmsg+0xcd/0x170 [ 8689.775481][ T253] do_syscall_64+0xc6/0x1e0 [ 8689.775481][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8689.775481][ T253] [ 8700.018268][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8700.018788][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8700.018788][ T253] dst_init+0x84/0x4a0 [ 8700.018788][ T253] dst_alloc+0x97/0x150 [ 8700.018788][ T253] ip6_dst_alloc+0x23/0x90 [ 8700.018788][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8700.018788][ T253] ip6_pol_route+0x56f/0x840 [ 8700.018788][ T253] fib6_rule_lookup+0x334/0x630 [ 8700.018788][ T253] ip6_route_output_flags+0x259/0x480 [ 8700.018788][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8700.018788][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8700.018788][ T253] netlink_rcv_skb+0x130/0x360 [ 8700.018788][ T253] netlink_unicast+0x449/0x710 [ 8700.018788][ T253] netlink_sendmsg+0x723/0xbe0 [ 8700.018788][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8700.018788][ T253] ___sys_sendmsg+0xee/0x170 [ 8700.018788][ T253] __sys_sendmsg+0xcd/0x170 [ 8700.018788][ T253] do_syscall_64+0xc6/0x1e0 [ 8700.018788][ T253] [ 8700.021135][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8700.021135][ T253] netdev_get_by_index+0x5e/0x80 [ 8700.021135][ T253] fib6_nh_init+0x3d8/0x1580 [ 8700.021135][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8700.021135][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8700.021135][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8700.021135][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8700.021135][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8700.021135][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8700.021135][ T253] addrconf_dad_begin+0x310/0x670 [ 8700.021135][ T253] addrconf_dad_work+0x10b/0xab0 [ 8700.021135][ T253] process_one_work+0x84d/0x18a0 [ 8700.021135][ T253] worker_thread+0x587/0xd30 [ 8700.021135][ T253] kthread+0x28a/0x350 [ 8700.021135][ T253] ret_from_fork+0x31/0x70 [ 8700.021135][ T253] ret_from_fork_asm+0x1a/0x30 [ 8700.021135][ T253] [ 8700.023423][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8700.023423][ T253] netdev_get_by_index+0x5e/0x80 [ 8700.023423][ T253] fib6_nh_init+0x3d8/0x1580 [ 8700.023423][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8700.023423][ T253] ip6_route_add+0x1c/0x140 [ 8700.023423][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8700.023423][ T253] inet6_addr_add+0x4f8/0xa40 [ 8700.023423][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8700.023423][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8700.023423][ T253] netlink_rcv_skb+0x130/0x360 [ 8700.023423][ T253] netlink_unicast+0x449/0x710 [ 8700.023423][ T253] netlink_sendmsg+0x723/0xbe0 [ 8700.023423][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8700.023423][ T253] ___sys_sendmsg+0xee/0x170 [ 8700.023423][ T253] __sys_sendmsg+0xcd/0x170 [ 8700.023423][ T253] do_syscall_64+0xc6/0x1e0 [ 8700.023423][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8700.023423][ T253] [ 8700.025882][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8700.025882][ T253] netdev_get_by_index+0x5e/0x80 [ 8700.025882][ T253] fib6_nh_init+0x3d8/0x1580 [ 8700.025882][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8700.025882][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8700.025882][ T253] ipv6_add_addr+0x411/0x2000 [ 8700.025882][ T253] inet6_addr_add+0x30e/0xa40 [ 8700.025882][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8700.025882][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8700.025882][ T253] netlink_rcv_skb+0x130/0x360 [ 8700.025882][ T253] netlink_unicast+0x449/0x710 [ 8700.025882][ T253] netlink_sendmsg+0x723/0xbe0 [ 8700.025882][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8700.025882][ T253] ___sys_sendmsg+0xee/0x170 [ 8700.025882][ T253] __sys_sendmsg+0xcd/0x170 [ 8700.025882][ T253] do_syscall_64+0xc6/0x1e0 [ 8700.025882][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8700.025882][ T253] [ 8700.028329][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8700.028329][ T253] netdev_get_by_index+0x5e/0x80 [ 8700.028329][ T253] fib6_nh_init+0x3d8/0x1580 [ 8700.028329][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8700.028329][ T253] ip6_route_add+0x1c/0x140 [ 8700.028329][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8700.028329][ T253] addrconf_add_dev+0xe2/0x170 [ 8700.028329][ T253] inet6_addr_add+0x12f/0xa40 [ 8700.028329][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8700.028329][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8700.028329][ T253] netlink_rcv_skb+0x130/0x360 [ 8700.028329][ T253] netlink_unicast+0x449/0x710 [ 8700.028329][ T253] netlink_sendmsg+0x723/0xbe0 [ 8700.028329][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8700.028329][ T253] ___sys_sendmsg+0xee/0x170 [ 8700.028329][ T253] __sys_sendmsg+0xcd/0x170 [ 8700.028329][ T253] do_syscall_64+0xc6/0x1e0 [ 8700.028329][ T253] [ 8700.030757][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8700.030757][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8700.030757][ T253] ipv6_find_idev+0x102/0x170 [ 8700.030757][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8700.030757][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8700.030757][ T253] netlink_rcv_skb+0x130/0x360 [ 8700.030757][ T253] netlink_unicast+0x449/0x710 [ 8700.030757][ T253] netlink_sendmsg+0x723/0xbe0 [ 8700.030757][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8700.030757][ T253] ___sys_sendmsg+0xee/0x170 [ 8700.030757][ T253] __sys_sendmsg+0xcd/0x170 [ 8700.030757][ T253] do_syscall_64+0xc6/0x1e0 [ 8700.030757][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8700.030757][ T253] [ 8700.032628][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8700.032628][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8700.032628][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8700.032628][ T253] ipv6_find_idev+0x102/0x170 [ 8700.032628][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8700.032628][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8700.032628][ T253] netlink_rcv_skb+0x130/0x360 [ 8700.032628][ T253] netlink_unicast+0x449/0x710 [ 8700.032628][ T253] netlink_sendmsg+0x723/0xbe0 [ 8700.032628][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8700.032628][ T253] ___sys_sendmsg+0xee/0x170 [ 8700.032628][ T253] __sys_sendmsg+0xcd/0x170 [ 8700.032628][ T253] do_syscall_64+0xc6/0x1e0 [ 8700.032628][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8700.032628][ T253] [ 8710.258249][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8710.258744][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8710.258744][ T253] dst_init+0x84/0x4a0 [ 8710.258744][ T253] dst_alloc+0x97/0x150 [ 8710.258744][ T253] ip6_dst_alloc+0x23/0x90 [ 8710.258744][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8710.258744][ T253] ip6_pol_route+0x56f/0x840 [ 8710.258744][ T253] fib6_rule_lookup+0x334/0x630 [ 8710.258744][ T253] ip6_route_output_flags+0x259/0x480 [ 8710.258744][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8710.258744][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8710.258744][ T253] netlink_rcv_skb+0x130/0x360 [ 8710.258744][ T253] netlink_unicast+0x449/0x710 [ 8710.258744][ T253] netlink_sendmsg+0x723/0xbe0 [ 8710.258744][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8710.258744][ T253] ___sys_sendmsg+0xee/0x170 [ 8710.258744][ T253] __sys_sendmsg+0xcd/0x170 [ 8710.258744][ T253] do_syscall_64+0xc6/0x1e0 [ 8710.258744][ T253] [ 8710.260980][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8710.260980][ T253] netdev_get_by_index+0x5e/0x80 [ 8710.260980][ T253] fib6_nh_init+0x3d8/0x1580 [ 8710.260980][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8710.260980][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8710.260980][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8710.260980][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8710.260980][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8710.260980][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8710.260980][ T253] addrconf_dad_begin+0x310/0x670 [ 8710.260980][ T253] addrconf_dad_work+0x10b/0xab0 [ 8710.260980][ T253] process_one_work+0x84d/0x18a0 [ 8710.260980][ T253] worker_thread+0x587/0xd30 [ 8710.260980][ T253] kthread+0x28a/0x350 [ 8710.260980][ T253] ret_from_fork+0x31/0x70 [ 8710.260980][ T253] ret_from_fork_asm+0x1a/0x30 [ 8710.260980][ T253] [ 8710.263139][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8710.263139][ T253] netdev_get_by_index+0x5e/0x80 [ 8710.263139][ T253] fib6_nh_init+0x3d8/0x1580 [ 8710.263139][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8710.263139][ T253] ip6_route_add+0x1c/0x140 [ 8710.263139][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8710.263139][ T253] inet6_addr_add+0x4f8/0xa40 [ 8710.263139][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8710.263139][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8710.263139][ T253] netlink_rcv_skb+0x130/0x360 [ 8710.263139][ T253] netlink_unicast+0x449/0x710 [ 8710.263139][ T253] netlink_sendmsg+0x723/0xbe0 [ 8710.263139][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8710.263139][ T253] ___sys_sendmsg+0xee/0x170 [ 8710.263139][ T253] __sys_sendmsg+0xcd/0x170 [ 8710.263139][ T253] do_syscall_64+0xc6/0x1e0 [ 8710.263139][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8710.263139][ T253] [ 8710.265445][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8710.265445][ T253] netdev_get_by_index+0x5e/0x80 [ 8710.265445][ T253] fib6_nh_init+0x3d8/0x1580 [ 8710.265445][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8710.265445][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8710.265445][ T253] ipv6_add_addr+0x411/0x2000 [ 8710.265445][ T253] inet6_addr_add+0x30e/0xa40 [ 8710.265445][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8710.265445][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8710.265445][ T253] netlink_rcv_skb+0x130/0x360 [ 8710.265445][ T253] netlink_unicast+0x449/0x710 [ 8710.265445][ T253] netlink_sendmsg+0x723/0xbe0 [ 8710.265445][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8710.265445][ T253] ___sys_sendmsg+0xee/0x170 [ 8710.265445][ T253] __sys_sendmsg+0xcd/0x170 [ 8710.265445][ T253] do_syscall_64+0xc6/0x1e0 [ 8710.265445][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8710.265445][ T253] [ 8710.267733][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8710.267733][ T253] netdev_get_by_index+0x5e/0x80 [ 8710.267733][ T253] fib6_nh_init+0x3d8/0x1580 [ 8710.267733][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8710.267733][ T253] ip6_route_add+0x1c/0x140 [ 8710.267733][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8710.267733][ T253] addrconf_add_dev+0xe2/0x170 [ 8710.267733][ T253] inet6_addr_add+0x12f/0xa40 [ 8710.267733][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8710.267733][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8710.267733][ T253] netlink_rcv_skb+0x130/0x360 [ 8710.267733][ T253] netlink_unicast+0x449/0x710 [ 8710.267733][ T253] netlink_sendmsg+0x723/0xbe0 [ 8710.267733][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8710.267733][ T253] ___sys_sendmsg+0xee/0x170 [ 8710.267733][ T253] __sys_sendmsg+0xcd/0x170 [ 8710.267733][ T253] do_syscall_64+0xc6/0x1e0 [ 8710.267733][ T253] [ 8710.270083][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8710.270083][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8710.270083][ T253] ipv6_find_idev+0x102/0x170 [ 8710.270083][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8710.270083][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8710.270083][ T253] netlink_rcv_skb+0x130/0x360 [ 8710.270083][ T253] netlink_unicast+0x449/0x710 [ 8710.270083][ T253] netlink_sendmsg+0x723/0xbe0 [ 8710.270083][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8710.270083][ T253] ___sys_sendmsg+0xee/0x170 [ 8710.270083][ T253] __sys_sendmsg+0xcd/0x170 [ 8710.270083][ T253] do_syscall_64+0xc6/0x1e0 [ 8710.270083][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8710.270083][ T253] [ 8710.271917][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8710.271917][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8710.271917][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8710.271917][ T253] ipv6_find_idev+0x102/0x170 [ 8710.271917][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8710.271917][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8710.271917][ T253] netlink_rcv_skb+0x130/0x360 [ 8710.271917][ T253] netlink_unicast+0x449/0x710 [ 8710.271917][ T253] netlink_sendmsg+0x723/0xbe0 [ 8710.271917][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8710.271917][ T253] ___sys_sendmsg+0xee/0x170 [ 8710.271917][ T253] __sys_sendmsg+0xcd/0x170 [ 8710.271917][ T253] do_syscall_64+0xc6/0x1e0 [ 8710.271917][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8710.271917][ T253] [ 8720.418250][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8720.418904][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8720.418904][ T253] dst_init+0x84/0x4a0 [ 8720.418904][ T253] dst_alloc+0x97/0x150 [ 8720.418904][ T253] ip6_dst_alloc+0x23/0x90 [ 8720.418904][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8720.418904][ T253] ip6_pol_route+0x56f/0x840 [ 8720.418904][ T253] fib6_rule_lookup+0x334/0x630 [ 8720.418904][ T253] ip6_route_output_flags+0x259/0x480 [ 8720.418904][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8720.418904][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8720.418904][ T253] netlink_rcv_skb+0x130/0x360 [ 8720.418904][ T253] netlink_unicast+0x449/0x710 [ 8720.418904][ T253] netlink_sendmsg+0x723/0xbe0 [ 8720.418904][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8720.418904][ T253] ___sys_sendmsg+0xee/0x170 [ 8720.418904][ T253] __sys_sendmsg+0xcd/0x170 [ 8720.418904][ T253] do_syscall_64+0xc6/0x1e0 [ 8720.418904][ T253] [ 8720.422316][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8720.422316][ T253] netdev_get_by_index+0x5e/0x80 [ 8720.422316][ T253] fib6_nh_init+0x3d8/0x1580 [ 8720.422316][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8720.422316][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8720.422316][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8720.422316][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8720.422316][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8720.422316][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8720.422316][ T253] addrconf_dad_begin+0x310/0x670 [ 8720.422316][ T253] addrconf_dad_work+0x10b/0xab0 [ 8720.422316][ T253] process_one_work+0x84d/0x18a0 [ 8720.422316][ T253] worker_thread+0x587/0xd30 [ 8720.422316][ T253] kthread+0x28a/0x350 [ 8720.422316][ T253] ret_from_fork+0x31/0x70 [ 8720.422316][ T253] ret_from_fork_asm+0x1a/0x30 [ 8720.422316][ T253] [ 8720.424545][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8720.424545][ T253] netdev_get_by_index+0x5e/0x80 [ 8720.424545][ T253] fib6_nh_init+0x3d8/0x1580 [ 8720.424545][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8720.424545][ T253] ip6_route_add+0x1c/0x140 [ 8720.424545][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8720.424545][ T253] inet6_addr_add+0x4f8/0xa40 [ 8720.424545][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8720.424545][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8720.424545][ T253] netlink_rcv_skb+0x130/0x360 [ 8720.424545][ T253] netlink_unicast+0x449/0x710 [ 8720.424545][ T253] netlink_sendmsg+0x723/0xbe0 [ 8720.424545][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8720.424545][ T253] ___sys_sendmsg+0xee/0x170 [ 8720.424545][ T253] __sys_sendmsg+0xcd/0x170 [ 8720.424545][ T253] do_syscall_64+0xc6/0x1e0 [ 8720.424545][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8720.424545][ T253] [ 8720.426830][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8720.426830][ T253] netdev_get_by_index+0x5e/0x80 [ 8720.426830][ T253] fib6_nh_init+0x3d8/0x1580 [ 8720.426830][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8720.426830][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8720.426830][ T253] ipv6_add_addr+0x411/0x2000 [ 8720.426830][ T253] inet6_addr_add+0x30e/0xa40 [ 8720.426830][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8720.426830][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8720.426830][ T253] netlink_rcv_skb+0x130/0x360 [ 8720.426830][ T253] netlink_unicast+0x449/0x710 [ 8720.426830][ T253] netlink_sendmsg+0x723/0xbe0 [ 8720.426830][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8720.426830][ T253] ___sys_sendmsg+0xee/0x170 [ 8720.426830][ T253] __sys_sendmsg+0xcd/0x170 [ 8720.426830][ T253] do_syscall_64+0xc6/0x1e0 [ 8720.426830][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8720.426830][ T253] [ 8720.429129][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8720.429129][ T253] netdev_get_by_index+0x5e/0x80 [ 8720.429129][ T253] fib6_nh_init+0x3d8/0x1580 [ 8720.429129][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8720.429129][ T253] ip6_route_add+0x1c/0x140 [ 8720.429129][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8720.429129][ T253] addrconf_add_dev+0xe2/0x170 [ 8720.429129][ T253] inet6_addr_add+0x12f/0xa40 [ 8720.429129][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8720.429129][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8720.429129][ T253] netlink_rcv_skb+0x130/0x360 [ 8720.429129][ T253] netlink_unicast+0x449/0x710 [ 8720.429129][ T253] netlink_sendmsg+0x723/0xbe0 [ 8720.429129][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8720.429129][ T253] ___sys_sendmsg+0xee/0x170 [ 8720.429129][ T253] __sys_sendmsg+0xcd/0x170 [ 8720.429129][ T253] do_syscall_64+0xc6/0x1e0 [ 8720.429129][ T253] [ 8720.431457][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8720.431457][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8720.431457][ T253] ipv6_find_idev+0x102/0x170 [ 8720.431457][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8720.431457][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8720.431457][ T253] netlink_rcv_skb+0x130/0x360 [ 8720.431457][ T253] netlink_unicast+0x449/0x710 [ 8720.431457][ T253] netlink_sendmsg+0x723/0xbe0 [ 8720.431457][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8720.431457][ T253] ___sys_sendmsg+0xee/0x170 [ 8720.431457][ T253] __sys_sendmsg+0xcd/0x170 [ 8720.431457][ T253] do_syscall_64+0xc6/0x1e0 [ 8720.431457][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8720.431457][ T253] [ 8720.433289][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8720.433289][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8720.433289][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8720.433289][ T253] ipv6_find_idev+0x102/0x170 [ 8720.433289][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8720.433289][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8720.433289][ T253] netlink_rcv_skb+0x130/0x360 [ 8720.433289][ T253] netlink_unicast+0x449/0x710 [ 8720.433289][ T253] netlink_sendmsg+0x723/0xbe0 [ 8720.433289][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8720.433289][ T253] ___sys_sendmsg+0xee/0x170 [ 8720.433289][ T253] __sys_sendmsg+0xcd/0x170 [ 8720.433289][ T253] do_syscall_64+0xc6/0x1e0 [ 8720.433289][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8720.433289][ T253] [ 8730.674261][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8730.674883][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8730.674883][ T253] dst_init+0x84/0x4a0 [ 8730.674883][ T253] dst_alloc+0x97/0x150 [ 8730.674883][ T253] ip6_dst_alloc+0x23/0x90 [ 8730.674883][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8730.674883][ T253] ip6_pol_route+0x56f/0x840 [ 8730.674883][ T253] fib6_rule_lookup+0x334/0x630 [ 8730.674883][ T253] ip6_route_output_flags+0x259/0x480 [ 8730.674883][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8730.674883][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8730.674883][ T253] netlink_rcv_skb+0x130/0x360 [ 8730.674883][ T253] netlink_unicast+0x449/0x710 [ 8730.674883][ T253] netlink_sendmsg+0x723/0xbe0 [ 8730.674883][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8730.674883][ T253] ___sys_sendmsg+0xee/0x170 [ 8730.674883][ T253] __sys_sendmsg+0xcd/0x170 [ 8730.674883][ T253] do_syscall_64+0xc6/0x1e0 [ 8730.674883][ T253] [ 8730.677700][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8730.677700][ T253] netdev_get_by_index+0x5e/0x80 [ 8730.677700][ T253] fib6_nh_init+0x3d8/0x1580 [ 8730.677700][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8730.677700][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8730.677700][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8730.677700][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8730.677700][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8730.677700][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8730.677700][ T253] addrconf_dad_begin+0x310/0x670 [ 8730.677700][ T253] addrconf_dad_work+0x10b/0xab0 [ 8730.677700][ T253] process_one_work+0x84d/0x18a0 [ 8730.677700][ T253] worker_thread+0x587/0xd30 [ 8730.677700][ T253] kthread+0x28a/0x350 [ 8730.677700][ T253] ret_from_fork+0x31/0x70 [ 8730.677700][ T253] ret_from_fork_asm+0x1a/0x30 [ 8730.677700][ T253] [ 8730.680011][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8730.680011][ T253] netdev_get_by_index+0x5e/0x80 [ 8730.680011][ T253] fib6_nh_init+0x3d8/0x1580 [ 8730.680011][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8730.680011][ T253] ip6_route_add+0x1c/0x140 [ 8730.680011][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8730.680011][ T253] inet6_addr_add+0x4f8/0xa40 [ 8730.680011][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8730.680011][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8730.680011][ T253] netlink_rcv_skb+0x130/0x360 [ 8730.680011][ T253] netlink_unicast+0x449/0x710 [ 8730.680011][ T253] netlink_sendmsg+0x723/0xbe0 [ 8730.680011][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8730.680011][ T253] ___sys_sendmsg+0xee/0x170 [ 8730.680011][ T253] __sys_sendmsg+0xcd/0x170 [ 8730.680011][ T253] do_syscall_64+0xc6/0x1e0 [ 8730.680011][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8730.680011][ T253] [ 8730.682395][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8730.682395][ T253] netdev_get_by_index+0x5e/0x80 [ 8730.682395][ T253] fib6_nh_init+0x3d8/0x1580 [ 8730.682395][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8730.682395][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8730.682395][ T253] ipv6_add_addr+0x411/0x2000 [ 8730.682395][ T253] inet6_addr_add+0x30e/0xa40 [ 8730.682395][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8730.682395][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8730.682395][ T253] netlink_rcv_skb+0x130/0x360 [ 8730.682395][ T253] netlink_unicast+0x449/0x710 [ 8730.682395][ T253] netlink_sendmsg+0x723/0xbe0 [ 8730.682395][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8730.682395][ T253] ___sys_sendmsg+0xee/0x170 [ 8730.682395][ T253] __sys_sendmsg+0xcd/0x170 [ 8730.682395][ T253] do_syscall_64+0xc6/0x1e0 [ 8730.682395][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8730.682395][ T253] [ 8730.684778][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8730.684778][ T253] netdev_get_by_index+0x5e/0x80 [ 8730.684778][ T253] fib6_nh_init+0x3d8/0x1580 [ 8730.684778][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8730.684778][ T253] ip6_route_add+0x1c/0x140 [ 8730.684778][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8730.684778][ T253] addrconf_add_dev+0xe2/0x170 [ 8730.684778][ T253] inet6_addr_add+0x12f/0xa40 [ 8730.684778][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8730.684778][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8730.684778][ T253] netlink_rcv_skb+0x130/0x360 [ 8730.684778][ T253] netlink_unicast+0x449/0x710 [ 8730.684778][ T253] netlink_sendmsg+0x723/0xbe0 [ 8730.684778][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8730.684778][ T253] ___sys_sendmsg+0xee/0x170 [ 8730.684778][ T253] __sys_sendmsg+0xcd/0x170 [ 8730.684778][ T253] do_syscall_64+0xc6/0x1e0 [ 8730.684778][ T253] [ 8730.687285][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8730.687285][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8730.687285][ T253] ipv6_find_idev+0x102/0x170 [ 8730.687285][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8730.687285][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8730.687285][ T253] netlink_rcv_skb+0x130/0x360 [ 8730.687285][ T253] netlink_unicast+0x449/0x710 [ 8730.687285][ T253] netlink_sendmsg+0x723/0xbe0 [ 8730.687285][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8730.687285][ T253] ___sys_sendmsg+0xee/0x170 [ 8730.687285][ T253] __sys_sendmsg+0xcd/0x170 [ 8730.687285][ T253] do_syscall_64+0xc6/0x1e0 [ 8730.687285][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8730.687285][ T253] [ 8730.689037][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8730.689037][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8730.689037][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8730.689037][ T253] ipv6_find_idev+0x102/0x170 [ 8730.689037][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8730.689037][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8730.689037][ T253] netlink_rcv_skb+0x130/0x360 [ 8730.689037][ T253] netlink_unicast+0x449/0x710 [ 8730.689037][ T253] netlink_sendmsg+0x723/0xbe0 [ 8730.689037][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8730.689037][ T253] ___sys_sendmsg+0xee/0x170 [ 8730.689037][ T253] __sys_sendmsg+0xcd/0x170 [ 8730.689037][ T253] do_syscall_64+0xc6/0x1e0 [ 8730.689037][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8730.689037][ T253] [ 8740.930246][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8740.930663][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8740.930663][ T253] dst_init+0x84/0x4a0 [ 8740.930663][ T253] dst_alloc+0x97/0x150 [ 8740.930663][ T253] ip6_dst_alloc+0x23/0x90 [ 8740.930663][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8740.930663][ T253] ip6_pol_route+0x56f/0x840 [ 8740.930663][ T253] fib6_rule_lookup+0x334/0x630 [ 8740.930663][ T253] ip6_route_output_flags+0x259/0x480 [ 8740.930663][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8740.930663][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8740.930663][ T253] netlink_rcv_skb+0x130/0x360 [ 8740.930663][ T253] netlink_unicast+0x449/0x710 [ 8740.930663][ T253] netlink_sendmsg+0x723/0xbe0 [ 8740.930663][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8740.930663][ T253] ___sys_sendmsg+0xee/0x170 [ 8740.930663][ T253] __sys_sendmsg+0xcd/0x170 [ 8740.930663][ T253] do_syscall_64+0xc6/0x1e0 [ 8740.930663][ T253] [ 8740.932868][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8740.932868][ T253] netdev_get_by_index+0x5e/0x80 [ 8740.932868][ T253] fib6_nh_init+0x3d8/0x1580 [ 8740.932868][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8740.932868][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8740.932868][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8740.932868][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8740.932868][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8740.932868][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8740.932868][ T253] addrconf_dad_begin+0x310/0x670 [ 8740.932868][ T253] addrconf_dad_work+0x10b/0xab0 [ 8740.932868][ T253] process_one_work+0x84d/0x18a0 [ 8740.932868][ T253] worker_thread+0x587/0xd30 [ 8740.932868][ T253] kthread+0x28a/0x350 [ 8740.932868][ T253] ret_from_fork+0x31/0x70 [ 8740.932868][ T253] ret_from_fork_asm+0x1a/0x30 [ 8740.932868][ T253] [ 8740.935431][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8740.935431][ T253] netdev_get_by_index+0x5e/0x80 [ 8740.935431][ T253] fib6_nh_init+0x3d8/0x1580 [ 8740.935431][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8740.935431][ T253] ip6_route_add+0x1c/0x140 [ 8740.935431][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8740.935431][ T253] inet6_addr_add+0x4f8/0xa40 [ 8740.935431][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8740.935431][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8740.935431][ T253] netlink_rcv_skb+0x130/0x360 [ 8740.935431][ T253] netlink_unicast+0x449/0x710 [ 8740.935431][ T253] netlink_sendmsg+0x723/0xbe0 [ 8740.935431][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8740.935431][ T253] ___sys_sendmsg+0xee/0x170 [ 8740.935431][ T253] __sys_sendmsg+0xcd/0x170 [ 8740.935431][ T253] do_syscall_64+0xc6/0x1e0 [ 8740.935431][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8740.935431][ T253] [ 8740.938894][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8740.938894][ T253] netdev_get_by_index+0x5e/0x80 [ 8740.938894][ T253] fib6_nh_init+0x3d8/0x1580 [ 8740.938894][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8740.938894][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8740.938894][ T253] ipv6_add_addr+0x411/0x2000 [ 8740.938894][ T253] inet6_addr_add+0x30e/0xa40 [ 8740.938894][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8740.938894][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8740.938894][ T253] netlink_rcv_skb+0x130/0x360 [ 8740.938894][ T253] netlink_unicast+0x449/0x710 [ 8740.938894][ T253] netlink_sendmsg+0x723/0xbe0 [ 8740.938894][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8740.938894][ T253] ___sys_sendmsg+0xee/0x170 [ 8740.938894][ T253] __sys_sendmsg+0xcd/0x170 [ 8740.938894][ T253] do_syscall_64+0xc6/0x1e0 [ 8740.938894][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8740.938894][ T253] [ 8740.942410][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8740.942410][ T253] netdev_get_by_index+0x5e/0x80 [ 8740.942410][ T253] fib6_nh_init+0x3d8/0x1580 [ 8740.942410][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8740.942410][ T253] ip6_route_add+0x1c/0x140 [ 8740.942410][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8740.942410][ T253] addrconf_add_dev+0xe2/0x170 [ 8740.942410][ T253] inet6_addr_add+0x12f/0xa40 [ 8740.942410][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8740.942410][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8740.942410][ T253] netlink_rcv_skb+0x130/0x360 [ 8740.942410][ T253] netlink_unicast+0x449/0x710 [ 8740.942410][ T253] netlink_sendmsg+0x723/0xbe0 [ 8740.942410][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8740.942410][ T253] ___sys_sendmsg+0xee/0x170 [ 8740.942410][ T253] __sys_sendmsg+0xcd/0x170 [ 8740.942410][ T253] do_syscall_64+0xc6/0x1e0 [ 8740.942410][ T253] [ 8740.945575][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8740.945575][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8740.945575][ T253] ipv6_find_idev+0x102/0x170 [ 8740.945575][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8740.945575][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8740.945575][ T253] netlink_rcv_skb+0x130/0x360 [ 8740.945575][ T253] netlink_unicast+0x449/0x710 [ 8740.945575][ T253] netlink_sendmsg+0x723/0xbe0 [ 8740.945575][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8740.945575][ T253] ___sys_sendmsg+0xee/0x170 [ 8740.945575][ T253] __sys_sendmsg+0xcd/0x170 [ 8740.945575][ T253] do_syscall_64+0xc6/0x1e0 [ 8740.945575][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8740.945575][ T253] [ 8740.947310][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8740.947310][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8740.947310][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8740.947310][ T253] ipv6_find_idev+0x102/0x170 [ 8740.947310][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8740.947310][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8740.947310][ T253] netlink_rcv_skb+0x130/0x360 [ 8740.947310][ T253] netlink_unicast+0x449/0x710 [ 8740.947310][ T253] netlink_sendmsg+0x723/0xbe0 [ 8740.947310][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8740.947310][ T253] ___sys_sendmsg+0xee/0x170 [ 8740.947310][ T253] __sys_sendmsg+0xcd/0x170 [ 8740.947310][ T253] do_syscall_64+0xc6/0x1e0 [ 8740.947310][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8740.947310][ T253] [ 8751.042266][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8751.042907][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8751.042907][ T253] dst_init+0x84/0x4a0 [ 8751.042907][ T253] dst_alloc+0x97/0x150 [ 8751.042907][ T253] ip6_dst_alloc+0x23/0x90 [ 8751.042907][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8751.042907][ T253] ip6_pol_route+0x56f/0x840 [ 8751.042907][ T253] fib6_rule_lookup+0x334/0x630 [ 8751.042907][ T253] ip6_route_output_flags+0x259/0x480 [ 8751.042907][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8751.042907][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8751.042907][ T253] netlink_rcv_skb+0x130/0x360 [ 8751.042907][ T253] netlink_unicast+0x449/0x710 [ 8751.042907][ T253] netlink_sendmsg+0x723/0xbe0 [ 8751.042907][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8751.042907][ T253] ___sys_sendmsg+0xee/0x170 [ 8751.042907][ T253] __sys_sendmsg+0xcd/0x170 [ 8751.042907][ T253] do_syscall_64+0xc6/0x1e0 [ 8751.042907][ T253] [ 8751.045928][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8751.045928][ T253] netdev_get_by_index+0x5e/0x80 [ 8751.045928][ T253] fib6_nh_init+0x3d8/0x1580 [ 8751.045928][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8751.045928][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8751.045928][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8751.045928][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8751.045928][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8751.045928][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8751.045928][ T253] addrconf_dad_begin+0x310/0x670 [ 8751.045928][ T253] addrconf_dad_work+0x10b/0xab0 [ 8751.045928][ T253] process_one_work+0x84d/0x18a0 [ 8751.045928][ T253] worker_thread+0x587/0xd30 [ 8751.045928][ T253] kthread+0x28a/0x350 [ 8751.045928][ T253] ret_from_fork+0x31/0x70 [ 8751.045928][ T253] ret_from_fork_asm+0x1a/0x30 [ 8751.045928][ T253] [ 8751.048084][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8751.048084][ T253] netdev_get_by_index+0x5e/0x80 [ 8751.048084][ T253] fib6_nh_init+0x3d8/0x1580 [ 8751.048084][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8751.048084][ T253] ip6_route_add+0x1c/0x140 [ 8751.048084][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8751.048084][ T253] inet6_addr_add+0x4f8/0xa40 [ 8751.048084][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8751.048084][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8751.048084][ T253] netlink_rcv_skb+0x130/0x360 [ 8751.048084][ T253] netlink_unicast+0x449/0x710 [ 8751.048084][ T253] netlink_sendmsg+0x723/0xbe0 [ 8751.048084][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8751.048084][ T253] ___sys_sendmsg+0xee/0x170 [ 8751.048084][ T253] __sys_sendmsg+0xcd/0x170 [ 8751.048084][ T253] do_syscall_64+0xc6/0x1e0 [ 8751.048084][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8751.048084][ T253] [ 8751.050346][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8751.050346][ T253] netdev_get_by_index+0x5e/0x80 [ 8751.050346][ T253] fib6_nh_init+0x3d8/0x1580 [ 8751.050346][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8751.050346][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8751.050346][ T253] ipv6_add_addr+0x411/0x2000 [ 8751.050346][ T253] inet6_addr_add+0x30e/0xa40 [ 8751.050346][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8751.050346][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8751.050346][ T253] netlink_rcv_skb+0x130/0x360 [ 8751.050346][ T253] netlink_unicast+0x449/0x710 [ 8751.050346][ T253] netlink_sendmsg+0x723/0xbe0 [ 8751.050346][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8751.050346][ T253] ___sys_sendmsg+0xee/0x170 [ 8751.050346][ T253] __sys_sendmsg+0xcd/0x170 [ 8751.050346][ T253] do_syscall_64+0xc6/0x1e0 [ 8751.050346][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8751.050346][ T253] [ 8751.052585][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8751.052585][ T253] netdev_get_by_index+0x5e/0x80 [ 8751.052585][ T253] fib6_nh_init+0x3d8/0x1580 [ 8751.052585][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8751.052585][ T253] ip6_route_add+0x1c/0x140 [ 8751.052585][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8751.052585][ T253] addrconf_add_dev+0xe2/0x170 [ 8751.052585][ T253] inet6_addr_add+0x12f/0xa40 [ 8751.052585][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8751.052585][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8751.052585][ T253] netlink_rcv_skb+0x130/0x360 [ 8751.052585][ T253] netlink_unicast+0x449/0x710 [ 8751.052585][ T253] netlink_sendmsg+0x723/0xbe0 [ 8751.052585][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8751.052585][ T253] ___sys_sendmsg+0xee/0x170 [ 8751.052585][ T253] __sys_sendmsg+0xcd/0x170 [ 8751.052585][ T253] do_syscall_64+0xc6/0x1e0 [ 8751.052585][ T253] [ 8751.054795][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8751.054795][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8751.054795][ T253] ipv6_find_idev+0x102/0x170 [ 8751.054795][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8751.054795][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8751.054795][ T253] netlink_rcv_skb+0x130/0x360 [ 8751.054795][ T253] netlink_unicast+0x449/0x710 [ 8751.054795][ T253] netlink_sendmsg+0x723/0xbe0 [ 8751.054795][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8751.054795][ T253] ___sys_sendmsg+0xee/0x170 [ 8751.054795][ T253] __sys_sendmsg+0xcd/0x170 [ 8751.054795][ T253] do_syscall_64+0xc6/0x1e0 [ 8751.054795][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8751.054795][ T253] [ 8751.056525][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8751.056525][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8751.056525][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8751.056525][ T253] ipv6_find_idev+0x102/0x170 [ 8751.056525][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8751.056525][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8751.056525][ T253] netlink_rcv_skb+0x130/0x360 [ 8751.056525][ T253] netlink_unicast+0x449/0x710 [ 8751.056525][ T253] netlink_sendmsg+0x723/0xbe0 [ 8751.056525][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8751.056525][ T253] ___sys_sendmsg+0xee/0x170 [ 8751.056525][ T253] __sys_sendmsg+0xcd/0x170 [ 8751.056525][ T253] do_syscall_64+0xc6/0x1e0 [ 8751.056525][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8751.056525][ T253] [ 8761.106280][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8761.106865][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8761.106865][ T253] dst_init+0x84/0x4a0 [ 8761.106865][ T253] dst_alloc+0x97/0x150 [ 8761.106865][ T253] ip6_dst_alloc+0x23/0x90 [ 8761.106865][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8761.106865][ T253] ip6_pol_route+0x56f/0x840 [ 8761.106865][ T253] fib6_rule_lookup+0x334/0x630 [ 8761.106865][ T253] ip6_route_output_flags+0x259/0x480 [ 8761.106865][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8761.106865][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8761.106865][ T253] netlink_rcv_skb+0x130/0x360 [ 8761.106865][ T253] netlink_unicast+0x449/0x710 [ 8761.106865][ T253] netlink_sendmsg+0x723/0xbe0 [ 8761.106865][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8761.106865][ T253] ___sys_sendmsg+0xee/0x170 [ 8761.106865][ T253] __sys_sendmsg+0xcd/0x170 [ 8761.106865][ T253] do_syscall_64+0xc6/0x1e0 [ 8761.106865][ T253] [ 8761.110294][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8761.110294][ T253] netdev_get_by_index+0x5e/0x80 [ 8761.110294][ T253] fib6_nh_init+0x3d8/0x1580 [ 8761.110294][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8761.110294][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8761.110294][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8761.110294][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8761.110294][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8761.110294][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8761.110294][ T253] addrconf_dad_begin+0x310/0x670 [ 8761.110294][ T253] addrconf_dad_work+0x10b/0xab0 [ 8761.110294][ T253] process_one_work+0x84d/0x18a0 [ 8761.110294][ T253] worker_thread+0x587/0xd30 [ 8761.110294][ T253] kthread+0x28a/0x350 [ 8761.110294][ T253] ret_from_fork+0x31/0x70 [ 8761.110294][ T253] ret_from_fork_asm+0x1a/0x30 [ 8761.110294][ T253] [ 8761.113653][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8761.113653][ T253] netdev_get_by_index+0x5e/0x80 [ 8761.113653][ T253] fib6_nh_init+0x3d8/0x1580 [ 8761.113653][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8761.113653][ T253] ip6_route_add+0x1c/0x140 [ 8761.113653][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8761.113653][ T253] inet6_addr_add+0x4f8/0xa40 [ 8761.113653][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8761.113653][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8761.113653][ T253] netlink_rcv_skb+0x130/0x360 [ 8761.113653][ T253] netlink_unicast+0x449/0x710 [ 8761.113653][ T253] netlink_sendmsg+0x723/0xbe0 [ 8761.113653][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8761.113653][ T253] ___sys_sendmsg+0xee/0x170 [ 8761.113653][ T253] __sys_sendmsg+0xcd/0x170 [ 8761.113653][ T253] do_syscall_64+0xc6/0x1e0 [ 8761.113653][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8761.113653][ T253] [ 8761.116192][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8761.116192][ T253] netdev_get_by_index+0x5e/0x80 [ 8761.116192][ T253] fib6_nh_init+0x3d8/0x1580 [ 8761.116192][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8761.116192][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8761.116192][ T253] ipv6_add_addr+0x411/0x2000 [ 8761.116192][ T253] inet6_addr_add+0x30e/0xa40 [ 8761.116192][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8761.116192][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8761.116192][ T253] netlink_rcv_skb+0x130/0x360 [ 8761.116192][ T253] netlink_unicast+0x449/0x710 [ 8761.116192][ T253] netlink_sendmsg+0x723/0xbe0 [ 8761.116192][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8761.116192][ T253] ___sys_sendmsg+0xee/0x170 [ 8761.116192][ T253] __sys_sendmsg+0xcd/0x170 [ 8761.116192][ T253] do_syscall_64+0xc6/0x1e0 [ 8761.116192][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8761.116192][ T253] [ 8761.118455][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8761.118455][ T253] netdev_get_by_index+0x5e/0x80 [ 8761.118455][ T253] fib6_nh_init+0x3d8/0x1580 [ 8761.118455][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8761.118455][ T253] ip6_route_add+0x1c/0x140 [ 8761.118455][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8761.118455][ T253] addrconf_add_dev+0xe2/0x170 [ 8761.118455][ T253] inet6_addr_add+0x12f/0xa40 [ 8761.118455][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8761.118455][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8761.118455][ T253] netlink_rcv_skb+0x130/0x360 [ 8761.118455][ T253] netlink_unicast+0x449/0x710 [ 8761.118455][ T253] netlink_sendmsg+0x723/0xbe0 [ 8761.118455][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8761.118455][ T253] ___sys_sendmsg+0xee/0x170 [ 8761.118455][ T253] __sys_sendmsg+0xcd/0x170 [ 8761.118455][ T253] do_syscall_64+0xc6/0x1e0 [ 8761.118455][ T253] [ 8761.120688][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8761.120688][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8761.120688][ T253] ipv6_find_idev+0x102/0x170 [ 8761.120688][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8761.120688][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8761.120688][ T253] netlink_rcv_skb+0x130/0x360 [ 8761.120688][ T253] netlink_unicast+0x449/0x710 [ 8761.120688][ T253] netlink_sendmsg+0x723/0xbe0 [ 8761.120688][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8761.120688][ T253] ___sys_sendmsg+0xee/0x170 [ 8761.120688][ T253] __sys_sendmsg+0xcd/0x170 [ 8761.120688][ T253] do_syscall_64+0xc6/0x1e0 [ 8761.120688][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8761.120688][ T253] [ 8761.122423][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8761.122423][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8761.122423][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8761.122423][ T253] ipv6_find_idev+0x102/0x170 [ 8761.122423][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8761.122423][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8761.122423][ T253] netlink_rcv_skb+0x130/0x360 [ 8761.122423][ T253] netlink_unicast+0x449/0x710 [ 8761.122423][ T253] netlink_sendmsg+0x723/0xbe0 [ 8761.122423][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8761.122423][ T253] ___sys_sendmsg+0xee/0x170 [ 8761.122423][ T253] __sys_sendmsg+0xcd/0x170 [ 8761.122423][ T253] do_syscall_64+0xc6/0x1e0 [ 8761.122423][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8761.122423][ T253] [ 8771.154309][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8771.154792][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8771.154792][ T253] dst_init+0x84/0x4a0 [ 8771.154792][ T253] dst_alloc+0x97/0x150 [ 8771.154792][ T253] ip6_dst_alloc+0x23/0x90 [ 8771.154792][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8771.154792][ T253] ip6_pol_route+0x56f/0x840 [ 8771.154792][ T253] fib6_rule_lookup+0x334/0x630 [ 8771.154792][ T253] ip6_route_output_flags+0x259/0x480 [ 8771.154792][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8771.154792][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8771.154792][ T253] netlink_rcv_skb+0x130/0x360 [ 8771.154792][ T253] netlink_unicast+0x449/0x710 [ 8771.154792][ T253] netlink_sendmsg+0x723/0xbe0 [ 8771.154792][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8771.154792][ T253] ___sys_sendmsg+0xee/0x170 [ 8771.154792][ T253] __sys_sendmsg+0xcd/0x170 [ 8771.154792][ T253] do_syscall_64+0xc6/0x1e0 [ 8771.154792][ T253] [ 8771.156980][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8771.156980][ T253] netdev_get_by_index+0x5e/0x80 [ 8771.156980][ T253] fib6_nh_init+0x3d8/0x1580 [ 8771.156980][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8771.156980][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8771.156980][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8771.156980][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8771.156980][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8771.156980][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8771.156980][ T253] addrconf_dad_begin+0x310/0x670 [ 8771.156980][ T253] addrconf_dad_work+0x10b/0xab0 [ 8771.156980][ T253] process_one_work+0x84d/0x18a0 [ 8771.156980][ T253] worker_thread+0x587/0xd30 [ 8771.156980][ T253] kthread+0x28a/0x350 [ 8771.156980][ T253] ret_from_fork+0x31/0x70 [ 8771.156980][ T253] ret_from_fork_asm+0x1a/0x30 [ 8771.156980][ T253] [ 8771.159433][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8771.159433][ T253] netdev_get_by_index+0x5e/0x80 [ 8771.159433][ T253] fib6_nh_init+0x3d8/0x1580 [ 8771.159433][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8771.159433][ T253] ip6_route_add+0x1c/0x140 [ 8771.159433][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8771.159433][ T253] inet6_addr_add+0x4f8/0xa40 [ 8771.159433][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8771.159433][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8771.159433][ T253] netlink_rcv_skb+0x130/0x360 [ 8771.159433][ T253] netlink_unicast+0x449/0x710 [ 8771.159433][ T253] netlink_sendmsg+0x723/0xbe0 [ 8771.159433][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8771.159433][ T253] ___sys_sendmsg+0xee/0x170 [ 8771.159433][ T253] __sys_sendmsg+0xcd/0x170 [ 8771.159433][ T253] do_syscall_64+0xc6/0x1e0 [ 8771.159433][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8771.159433][ T253] [ 8771.163798][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8771.163798][ T253] netdev_get_by_index+0x5e/0x80 [ 8771.163798][ T253] fib6_nh_init+0x3d8/0x1580 [ 8771.163798][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8771.163798][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8771.163798][ T253] ipv6_add_addr+0x411/0x2000 [ 8771.163798][ T253] inet6_addr_add+0x30e/0xa40 [ 8771.163798][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8771.163798][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8771.163798][ T253] netlink_rcv_skb+0x130/0x360 [ 8771.163798][ T253] netlink_unicast+0x449/0x710 [ 8771.163798][ T253] netlink_sendmsg+0x723/0xbe0 [ 8771.163798][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8771.163798][ T253] ___sys_sendmsg+0xee/0x170 [ 8771.163798][ T253] __sys_sendmsg+0xcd/0x170 [ 8771.163798][ T253] do_syscall_64+0xc6/0x1e0 [ 8771.163798][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8771.163798][ T253] [ 8771.167276][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8771.167276][ T253] netdev_get_by_index+0x5e/0x80 [ 8771.167276][ T253] fib6_nh_init+0x3d8/0x1580 [ 8771.167276][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8771.167276][ T253] ip6_route_add+0x1c/0x140 [ 8771.167276][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8771.167276][ T253] addrconf_add_dev+0xe2/0x170 [ 8771.167276][ T253] inet6_addr_add+0x12f/0xa40 [ 8771.167276][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8771.167276][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8771.167276][ T253] netlink_rcv_skb+0x130/0x360 [ 8771.167276][ T253] netlink_unicast+0x449/0x710 [ 8771.167276][ T253] netlink_sendmsg+0x723/0xbe0 [ 8771.167276][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8771.167276][ T253] ___sys_sendmsg+0xee/0x170 [ 8771.167276][ T253] __sys_sendmsg+0xcd/0x170 [ 8771.167276][ T253] do_syscall_64+0xc6/0x1e0 [ 8771.167276][ T253] [ 8771.170295][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8771.170295][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8771.170295][ T253] ipv6_find_idev+0x102/0x170 [ 8771.170295][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8771.170295][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8771.170295][ T253] netlink_rcv_skb+0x130/0x360 [ 8771.170295][ T253] netlink_unicast+0x449/0x710 [ 8771.170295][ T253] netlink_sendmsg+0x723/0xbe0 [ 8771.170295][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8771.170295][ T253] ___sys_sendmsg+0xee/0x170 [ 8771.170295][ T253] __sys_sendmsg+0xcd/0x170 [ 8771.170295][ T253] do_syscall_64+0xc6/0x1e0 [ 8771.170295][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8771.170295][ T253] [ 8771.172036][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8771.172036][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8771.172036][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8771.172036][ T253] ipv6_find_idev+0x102/0x170 [ 8771.172036][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8771.172036][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8771.172036][ T253] netlink_rcv_skb+0x130/0x360 [ 8771.172036][ T253] netlink_unicast+0x449/0x710 [ 8771.172036][ T253] netlink_sendmsg+0x723/0xbe0 [ 8771.172036][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8771.172036][ T253] ___sys_sendmsg+0xee/0x170 [ 8771.172036][ T253] __sys_sendmsg+0xcd/0x170 [ 8771.172036][ T253] do_syscall_64+0xc6/0x1e0 [ 8771.172036][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8771.172036][ T253] [ 8781.410240][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8781.410672][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8781.410672][ T253] dst_init+0x84/0x4a0 [ 8781.410672][ T253] dst_alloc+0x97/0x150 [ 8781.410672][ T253] ip6_dst_alloc+0x23/0x90 [ 8781.410672][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8781.410672][ T253] ip6_pol_route+0x56f/0x840 [ 8781.410672][ T253] fib6_rule_lookup+0x334/0x630 [ 8781.410672][ T253] ip6_route_output_flags+0x259/0x480 [ 8781.410672][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8781.410672][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8781.410672][ T253] netlink_rcv_skb+0x130/0x360 [ 8781.410672][ T253] netlink_unicast+0x449/0x710 [ 8781.410672][ T253] netlink_sendmsg+0x723/0xbe0 [ 8781.410672][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8781.410672][ T253] ___sys_sendmsg+0xee/0x170 [ 8781.410672][ T253] __sys_sendmsg+0xcd/0x170 [ 8781.410672][ T253] do_syscall_64+0xc6/0x1e0 [ 8781.410672][ T253] [ 8781.412860][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8781.412860][ T253] netdev_get_by_index+0x5e/0x80 [ 8781.412860][ T253] fib6_nh_init+0x3d8/0x1580 [ 8781.412860][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8781.412860][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8781.412860][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8781.412860][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8781.412860][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8781.412860][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8781.412860][ T253] addrconf_dad_begin+0x310/0x670 [ 8781.412860][ T253] addrconf_dad_work+0x10b/0xab0 [ 8781.412860][ T253] process_one_work+0x84d/0x18a0 [ 8781.412860][ T253] worker_thread+0x587/0xd30 [ 8781.412860][ T253] kthread+0x28a/0x350 [ 8781.412860][ T253] ret_from_fork+0x31/0x70 [ 8781.412860][ T253] ret_from_fork_asm+0x1a/0x30 [ 8781.412860][ T253] [ 8781.414996][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8781.414996][ T253] netdev_get_by_index+0x5e/0x80 [ 8781.414996][ T253] fib6_nh_init+0x3d8/0x1580 [ 8781.414996][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8781.414996][ T253] ip6_route_add+0x1c/0x140 [ 8781.414996][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8781.414996][ T253] inet6_addr_add+0x4f8/0xa40 [ 8781.414996][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8781.414996][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8781.414996][ T253] netlink_rcv_skb+0x130/0x360 [ 8781.414996][ T253] netlink_unicast+0x449/0x710 [ 8781.414996][ T253] netlink_sendmsg+0x723/0xbe0 [ 8781.414996][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8781.414996][ T253] ___sys_sendmsg+0xee/0x170 [ 8781.414996][ T253] __sys_sendmsg+0xcd/0x170 [ 8781.414996][ T253] do_syscall_64+0xc6/0x1e0 [ 8781.414996][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8781.414996][ T253] [ 8781.417228][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8781.417228][ T253] netdev_get_by_index+0x5e/0x80 [ 8781.417228][ T253] fib6_nh_init+0x3d8/0x1580 [ 8781.417228][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8781.417228][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8781.417228][ T253] ipv6_add_addr+0x411/0x2000 [ 8781.417228][ T253] inet6_addr_add+0x30e/0xa40 [ 8781.417228][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8781.417228][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8781.417228][ T253] netlink_rcv_skb+0x130/0x360 [ 8781.417228][ T253] netlink_unicast+0x449/0x710 [ 8781.417228][ T253] netlink_sendmsg+0x723/0xbe0 [ 8781.417228][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8781.417228][ T253] ___sys_sendmsg+0xee/0x170 [ 8781.417228][ T253] __sys_sendmsg+0xcd/0x170 [ 8781.417228][ T253] do_syscall_64+0xc6/0x1e0 [ 8781.417228][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8781.417228][ T253] [ 8781.419473][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8781.419473][ T253] netdev_get_by_index+0x5e/0x80 [ 8781.419473][ T253] fib6_nh_init+0x3d8/0x1580 [ 8781.419473][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8781.419473][ T253] ip6_route_add+0x1c/0x140 [ 8781.419473][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8781.419473][ T253] addrconf_add_dev+0xe2/0x170 [ 8781.419473][ T253] inet6_addr_add+0x12f/0xa40 [ 8781.419473][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8781.419473][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8781.419473][ T253] netlink_rcv_skb+0x130/0x360 [ 8781.419473][ T253] netlink_unicast+0x449/0x710 [ 8781.419473][ T253] netlink_sendmsg+0x723/0xbe0 [ 8781.419473][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8781.419473][ T253] ___sys_sendmsg+0xee/0x170 [ 8781.419473][ T253] __sys_sendmsg+0xcd/0x170 [ 8781.419473][ T253] do_syscall_64+0xc6/0x1e0 [ 8781.419473][ T253] [ 8781.421663][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8781.421663][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8781.421663][ T253] ipv6_find_idev+0x102/0x170 [ 8781.421663][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8781.421663][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8781.421663][ T253] netlink_rcv_skb+0x130/0x360 [ 8781.421663][ T253] netlink_unicast+0x449/0x710 [ 8781.421663][ T253] netlink_sendmsg+0x723/0xbe0 [ 8781.421663][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8781.421663][ T253] ___sys_sendmsg+0xee/0x170 [ 8781.421663][ T253] __sys_sendmsg+0xcd/0x170 [ 8781.421663][ T253] do_syscall_64+0xc6/0x1e0 [ 8781.421663][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8781.421663][ T253] [ 8781.423381][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8781.423381][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8781.423381][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8781.423381][ T253] ipv6_find_idev+0x102/0x170 [ 8781.423381][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8781.423381][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8781.423381][ T253] netlink_rcv_skb+0x130/0x360 [ 8781.423381][ T253] netlink_unicast+0x449/0x710 [ 8781.423381][ T253] netlink_sendmsg+0x723/0xbe0 [ 8781.423381][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8781.423381][ T253] ___sys_sendmsg+0xee/0x170 [ 8781.423381][ T253] __sys_sendmsg+0xcd/0x170 [ 8781.423381][ T253] do_syscall_64+0xc6/0x1e0 [ 8781.423381][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8781.423381][ T253] [ 8791.618308][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8791.618791][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8791.618791][ T253] dst_init+0x84/0x4a0 [ 8791.618791][ T253] dst_alloc+0x97/0x150 [ 8791.618791][ T253] ip6_dst_alloc+0x23/0x90 [ 8791.618791][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8791.618791][ T253] ip6_pol_route+0x56f/0x840 [ 8791.618791][ T253] fib6_rule_lookup+0x334/0x630 [ 8791.618791][ T253] ip6_route_output_flags+0x259/0x480 [ 8791.618791][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8791.618791][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8791.618791][ T253] netlink_rcv_skb+0x130/0x360 [ 8791.618791][ T253] netlink_unicast+0x449/0x710 [ 8791.618791][ T253] netlink_sendmsg+0x723/0xbe0 [ 8791.618791][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8791.618791][ T253] ___sys_sendmsg+0xee/0x170 [ 8791.618791][ T253] __sys_sendmsg+0xcd/0x170 [ 8791.618791][ T253] do_syscall_64+0xc6/0x1e0 [ 8791.618791][ T253] [ 8791.621001][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8791.621001][ T253] netdev_get_by_index+0x5e/0x80 [ 8791.621001][ T253] fib6_nh_init+0x3d8/0x1580 [ 8791.621001][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8791.621001][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8791.621001][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8791.621001][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8791.621001][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8791.621001][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8791.621001][ T253] addrconf_dad_begin+0x310/0x670 [ 8791.621001][ T253] addrconf_dad_work+0x10b/0xab0 [ 8791.621001][ T253] process_one_work+0x84d/0x18a0 [ 8791.621001][ T253] worker_thread+0x587/0xd30 [ 8791.621001][ T253] kthread+0x28a/0x350 [ 8791.621001][ T253] ret_from_fork+0x31/0x70 [ 8791.621001][ T253] ret_from_fork_asm+0x1a/0x30 [ 8791.621001][ T253] [ 8791.623136][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8791.623136][ T253] netdev_get_by_index+0x5e/0x80 [ 8791.623136][ T253] fib6_nh_init+0x3d8/0x1580 [ 8791.623136][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8791.623136][ T253] ip6_route_add+0x1c/0x140 [ 8791.623136][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8791.623136][ T253] inet6_addr_add+0x4f8/0xa40 [ 8791.623136][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8791.623136][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8791.623136][ T253] netlink_rcv_skb+0x130/0x360 [ 8791.623136][ T253] netlink_unicast+0x449/0x710 [ 8791.623136][ T253] netlink_sendmsg+0x723/0xbe0 [ 8791.623136][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8791.623136][ T253] ___sys_sendmsg+0xee/0x170 [ 8791.623136][ T253] __sys_sendmsg+0xcd/0x170 [ 8791.623136][ T253] do_syscall_64+0xc6/0x1e0 [ 8791.623136][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8791.623136][ T253] [ 8791.625381][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8791.625381][ T253] netdev_get_by_index+0x5e/0x80 [ 8791.625381][ T253] fib6_nh_init+0x3d8/0x1580 [ 8791.625381][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8791.625381][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8791.625381][ T253] ipv6_add_addr+0x411/0x2000 [ 8791.625381][ T253] inet6_addr_add+0x30e/0xa40 [ 8791.625381][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8791.625381][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8791.625381][ T253] netlink_rcv_skb+0x130/0x360 [ 8791.625381][ T253] netlink_unicast+0x449/0x710 [ 8791.625381][ T253] netlink_sendmsg+0x723/0xbe0 [ 8791.625381][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8791.625381][ T253] ___sys_sendmsg+0xee/0x170 [ 8791.625381][ T253] __sys_sendmsg+0xcd/0x170 [ 8791.625381][ T253] do_syscall_64+0xc6/0x1e0 [ 8791.625381][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8791.625381][ T253] [ 8791.627613][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8791.627613][ T253] netdev_get_by_index+0x5e/0x80 [ 8791.627613][ T253] fib6_nh_init+0x3d8/0x1580 [ 8791.627613][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8791.627613][ T253] ip6_route_add+0x1c/0x140 [ 8791.627613][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8791.627613][ T253] addrconf_add_dev+0xe2/0x170 [ 8791.627613][ T253] inet6_addr_add+0x12f/0xa40 [ 8791.627613][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8791.627613][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8791.627613][ T253] netlink_rcv_skb+0x130/0x360 [ 8791.627613][ T253] netlink_unicast+0x449/0x710 [ 8791.627613][ T253] netlink_sendmsg+0x723/0xbe0 [ 8791.627613][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8791.627613][ T253] ___sys_sendmsg+0xee/0x170 [ 8791.627613][ T253] __sys_sendmsg+0xcd/0x170 [ 8791.627613][ T253] do_syscall_64+0xc6/0x1e0 [ 8791.627613][ T253] [ 8791.629817][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8791.629817][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8791.629817][ T253] ipv6_find_idev+0x102/0x170 [ 8791.629817][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8791.629817][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8791.629817][ T253] netlink_rcv_skb+0x130/0x360 [ 8791.629817][ T253] netlink_unicast+0x449/0x710 [ 8791.629817][ T253] netlink_sendmsg+0x723/0xbe0 [ 8791.629817][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8791.629817][ T253] ___sys_sendmsg+0xee/0x170 [ 8791.629817][ T253] __sys_sendmsg+0xcd/0x170 [ 8791.629817][ T253] do_syscall_64+0xc6/0x1e0 [ 8791.629817][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8791.629817][ T253] [ 8791.631547][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8791.631547][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8791.631547][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8791.631547][ T253] ipv6_find_idev+0x102/0x170 [ 8791.631547][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8791.631547][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8791.631547][ T253] netlink_rcv_skb+0x130/0x360 [ 8791.631547][ T253] netlink_unicast+0x449/0x710 [ 8791.631547][ T253] netlink_sendmsg+0x723/0xbe0 [ 8791.631547][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8791.631547][ T253] ___sys_sendmsg+0xee/0x170 [ 8791.631547][ T253] __sys_sendmsg+0xcd/0x170 [ 8791.631547][ T253] do_syscall_64+0xc6/0x1e0 [ 8791.631547][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8791.631547][ T253] [ 8801.658296][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8801.658771][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8801.658771][ T253] dst_init+0x84/0x4a0 [ 8801.658771][ T253] dst_alloc+0x97/0x150 [ 8801.658771][ T253] ip6_dst_alloc+0x23/0x90 [ 8801.658771][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8801.658771][ T253] ip6_pol_route+0x56f/0x840 [ 8801.658771][ T253] fib6_rule_lookup+0x334/0x630 [ 8801.658771][ T253] ip6_route_output_flags+0x259/0x480 [ 8801.658771][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8801.658771][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8801.658771][ T253] netlink_rcv_skb+0x130/0x360 [ 8801.658771][ T253] netlink_unicast+0x449/0x710 [ 8801.658771][ T253] netlink_sendmsg+0x723/0xbe0 [ 8801.658771][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8801.658771][ T253] ___sys_sendmsg+0xee/0x170 [ 8801.658771][ T253] __sys_sendmsg+0xcd/0x170 [ 8801.658771][ T253] do_syscall_64+0xc6/0x1e0 [ 8801.658771][ T253] [ 8801.660998][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8801.660998][ T253] netdev_get_by_index+0x5e/0x80 [ 8801.660998][ T253] fib6_nh_init+0x3d8/0x1580 [ 8801.660998][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8801.660998][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8801.660998][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8801.660998][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8801.660998][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8801.660998][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8801.660998][ T253] addrconf_dad_begin+0x310/0x670 [ 8801.660998][ T253] addrconf_dad_work+0x10b/0xab0 [ 8801.660998][ T253] process_one_work+0x84d/0x18a0 [ 8801.660998][ T253] worker_thread+0x587/0xd30 [ 8801.660998][ T253] kthread+0x28a/0x350 [ 8801.660998][ T253] ret_from_fork+0x31/0x70 [ 8801.660998][ T253] ret_from_fork_asm+0x1a/0x30 [ 8801.660998][ T253] [ 8801.663147][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8801.663147][ T253] netdev_get_by_index+0x5e/0x80 [ 8801.663147][ T253] fib6_nh_init+0x3d8/0x1580 [ 8801.663147][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8801.663147][ T253] ip6_route_add+0x1c/0x140 [ 8801.663147][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8801.663147][ T253] inet6_addr_add+0x4f8/0xa40 [ 8801.663147][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8801.663147][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8801.663147][ T253] netlink_rcv_skb+0x130/0x360 [ 8801.663147][ T253] netlink_unicast+0x449/0x710 [ 8801.663147][ T253] netlink_sendmsg+0x723/0xbe0 [ 8801.663147][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8801.663147][ T253] ___sys_sendmsg+0xee/0x170 [ 8801.663147][ T253] __sys_sendmsg+0xcd/0x170 [ 8801.663147][ T253] do_syscall_64+0xc6/0x1e0 [ 8801.663147][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8801.663147][ T253] [ 8801.665382][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8801.665382][ T253] netdev_get_by_index+0x5e/0x80 [ 8801.665382][ T253] fib6_nh_init+0x3d8/0x1580 [ 8801.665382][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8801.665382][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8801.665382][ T253] ipv6_add_addr+0x411/0x2000 [ 8801.665382][ T253] inet6_addr_add+0x30e/0xa40 [ 8801.665382][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8801.665382][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8801.665382][ T253] netlink_rcv_skb+0x130/0x360 [ 8801.665382][ T253] netlink_unicast+0x449/0x710 [ 8801.665382][ T253] netlink_sendmsg+0x723/0xbe0 [ 8801.665382][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8801.665382][ T253] ___sys_sendmsg+0xee/0x170 [ 8801.665382][ T253] __sys_sendmsg+0xcd/0x170 [ 8801.665382][ T253] do_syscall_64+0xc6/0x1e0 [ 8801.665382][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8801.665382][ T253] [ 8801.667619][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8801.667619][ T253] netdev_get_by_index+0x5e/0x80 [ 8801.667619][ T253] fib6_nh_init+0x3d8/0x1580 [ 8801.667619][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8801.667619][ T253] ip6_route_add+0x1c/0x140 [ 8801.667619][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8801.667619][ T253] addrconf_add_dev+0xe2/0x170 [ 8801.667619][ T253] inet6_addr_add+0x12f/0xa40 [ 8801.667619][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8801.667619][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8801.667619][ T253] netlink_rcv_skb+0x130/0x360 [ 8801.667619][ T253] netlink_unicast+0x449/0x710 [ 8801.667619][ T253] netlink_sendmsg+0x723/0xbe0 [ 8801.667619][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8801.667619][ T253] ___sys_sendmsg+0xee/0x170 [ 8801.667619][ T253] __sys_sendmsg+0xcd/0x170 [ 8801.667619][ T253] do_syscall_64+0xc6/0x1e0 [ 8801.667619][ T253] [ 8801.669828][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8801.669828][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8801.669828][ T253] ipv6_find_idev+0x102/0x170 [ 8801.669828][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8801.669828][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8801.669828][ T253] netlink_rcv_skb+0x130/0x360 [ 8801.669828][ T253] netlink_unicast+0x449/0x710 [ 8801.669828][ T253] netlink_sendmsg+0x723/0xbe0 [ 8801.669828][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8801.669828][ T253] ___sys_sendmsg+0xee/0x170 [ 8801.669828][ T253] __sys_sendmsg+0xcd/0x170 [ 8801.669828][ T253] do_syscall_64+0xc6/0x1e0 [ 8801.669828][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8801.669828][ T253] [ 8801.671545][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8801.671545][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8801.671545][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8801.671545][ T253] ipv6_find_idev+0x102/0x170 [ 8801.671545][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8801.671545][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8801.671545][ T253] netlink_rcv_skb+0x130/0x360 [ 8801.671545][ T253] netlink_unicast+0x449/0x710 [ 8801.671545][ T253] netlink_sendmsg+0x723/0xbe0 [ 8801.671545][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8801.671545][ T253] ___sys_sendmsg+0xee/0x170 [ 8801.671545][ T253] __sys_sendmsg+0xcd/0x170 [ 8801.671545][ T253] do_syscall_64+0xc6/0x1e0 [ 8801.671545][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8801.671545][ T253] [ 8811.874286][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8811.874795][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8811.874795][ T253] dst_init+0x84/0x4a0 [ 8811.874795][ T253] dst_alloc+0x97/0x150 [ 8811.874795][ T253] ip6_dst_alloc+0x23/0x90 [ 8811.874795][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8811.874795][ T253] ip6_pol_route+0x56f/0x840 [ 8811.874795][ T253] fib6_rule_lookup+0x334/0x630 [ 8811.874795][ T253] ip6_route_output_flags+0x259/0x480 [ 8811.874795][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8811.874795][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8811.874795][ T253] netlink_rcv_skb+0x130/0x360 [ 8811.874795][ T253] netlink_unicast+0x449/0x710 [ 8811.874795][ T253] netlink_sendmsg+0x723/0xbe0 [ 8811.874795][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8811.874795][ T253] ___sys_sendmsg+0xee/0x170 [ 8811.874795][ T253] __sys_sendmsg+0xcd/0x170 [ 8811.874795][ T253] do_syscall_64+0xc6/0x1e0 [ 8811.874795][ T253] [ 8811.876997][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8811.876997][ T253] netdev_get_by_index+0x5e/0x80 [ 8811.876997][ T253] fib6_nh_init+0x3d8/0x1580 [ 8811.876997][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8811.876997][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8811.876997][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8811.876997][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8811.876997][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8811.876997][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8811.876997][ T253] addrconf_dad_begin+0x310/0x670 [ 8811.876997][ T253] addrconf_dad_work+0x10b/0xab0 [ 8811.876997][ T253] process_one_work+0x84d/0x18a0 [ 8811.876997][ T253] worker_thread+0x587/0xd30 [ 8811.876997][ T253] kthread+0x28a/0x350 [ 8811.876997][ T253] ret_from_fork+0x31/0x70 [ 8811.876997][ T253] ret_from_fork_asm+0x1a/0x30 [ 8811.876997][ T253] [ 8811.879157][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8811.879157][ T253] netdev_get_by_index+0x5e/0x80 [ 8811.879157][ T253] fib6_nh_init+0x3d8/0x1580 [ 8811.879157][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8811.879157][ T253] ip6_route_add+0x1c/0x140 [ 8811.879157][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8811.879157][ T253] inet6_addr_add+0x4f8/0xa40 [ 8811.879157][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8811.879157][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8811.879157][ T253] netlink_rcv_skb+0x130/0x360 [ 8811.879157][ T253] netlink_unicast+0x449/0x710 [ 8811.879157][ T253] netlink_sendmsg+0x723/0xbe0 [ 8811.879157][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8811.879157][ T253] ___sys_sendmsg+0xee/0x170 [ 8811.879157][ T253] __sys_sendmsg+0xcd/0x170 [ 8811.879157][ T253] do_syscall_64+0xc6/0x1e0 [ 8811.879157][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8811.879157][ T253] [ 8811.881394][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8811.881394][ T253] netdev_get_by_index+0x5e/0x80 [ 8811.881394][ T253] fib6_nh_init+0x3d8/0x1580 [ 8811.881394][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8811.881394][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8811.881394][ T253] ipv6_add_addr+0x411/0x2000 [ 8811.881394][ T253] inet6_addr_add+0x30e/0xa40 [ 8811.881394][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8811.881394][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8811.881394][ T253] netlink_rcv_skb+0x130/0x360 [ 8811.881394][ T253] netlink_unicast+0x449/0x710 [ 8811.881394][ T253] netlink_sendmsg+0x723/0xbe0 [ 8811.881394][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8811.881394][ T253] ___sys_sendmsg+0xee/0x170 [ 8811.881394][ T253] __sys_sendmsg+0xcd/0x170 [ 8811.881394][ T253] do_syscall_64+0xc6/0x1e0 [ 8811.881394][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8811.881394][ T253] [ 8811.883673][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8811.883673][ T253] netdev_get_by_index+0x5e/0x80 [ 8811.883673][ T253] fib6_nh_init+0x3d8/0x1580 [ 8811.883673][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8811.883673][ T253] ip6_route_add+0x1c/0x140 [ 8811.883673][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8811.883673][ T253] addrconf_add_dev+0xe2/0x170 [ 8811.883673][ T253] inet6_addr_add+0x12f/0xa40 [ 8811.883673][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8811.883673][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8811.883673][ T253] netlink_rcv_skb+0x130/0x360 [ 8811.883673][ T253] netlink_unicast+0x449/0x710 [ 8811.883673][ T253] netlink_sendmsg+0x723/0xbe0 [ 8811.883673][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8811.883673][ T253] ___sys_sendmsg+0xee/0x170 [ 8811.883673][ T253] __sys_sendmsg+0xcd/0x170 [ 8811.883673][ T253] do_syscall_64+0xc6/0x1e0 [ 8811.883673][ T253] [ 8811.886972][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8811.886972][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8811.886972][ T253] ipv6_find_idev+0x102/0x170 [ 8811.886972][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8811.886972][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8811.886972][ T253] netlink_rcv_skb+0x130/0x360 [ 8811.886972][ T253] netlink_unicast+0x449/0x710 [ 8811.886972][ T253] netlink_sendmsg+0x723/0xbe0 [ 8811.886972][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8811.886972][ T253] ___sys_sendmsg+0xee/0x170 [ 8811.886972][ T253] __sys_sendmsg+0xcd/0x170 [ 8811.886972][ T253] do_syscall_64+0xc6/0x1e0 [ 8811.886972][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8811.886972][ T253] [ 8811.889634][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8811.889634][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8811.889634][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8811.889634][ T253] ipv6_find_idev+0x102/0x170 [ 8811.889634][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8811.889634][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8811.889634][ T253] netlink_rcv_skb+0x130/0x360 [ 8811.889634][ T253] netlink_unicast+0x449/0x710 [ 8811.889634][ T253] netlink_sendmsg+0x723/0xbe0 [ 8811.889634][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8811.889634][ T253] ___sys_sendmsg+0xee/0x170 [ 8811.889634][ T253] __sys_sendmsg+0xcd/0x170 [ 8811.889634][ T253] do_syscall_64+0xc6/0x1e0 [ 8811.889634][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8811.889634][ T253] [ 8822.130325][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8822.130804][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8822.130804][ T253] dst_init+0x84/0x4a0 [ 8822.130804][ T253] dst_alloc+0x97/0x150 [ 8822.130804][ T253] ip6_dst_alloc+0x23/0x90 [ 8822.130804][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8822.130804][ T253] ip6_pol_route+0x56f/0x840 [ 8822.130804][ T253] fib6_rule_lookup+0x334/0x630 [ 8822.130804][ T253] ip6_route_output_flags+0x259/0x480 [ 8822.130804][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8822.130804][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8822.130804][ T253] netlink_rcv_skb+0x130/0x360 [ 8822.130804][ T253] netlink_unicast+0x449/0x710 [ 8822.130804][ T253] netlink_sendmsg+0x723/0xbe0 [ 8822.130804][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8822.130804][ T253] ___sys_sendmsg+0xee/0x170 [ 8822.130804][ T253] __sys_sendmsg+0xcd/0x170 [ 8822.130804][ T253] do_syscall_64+0xc6/0x1e0 [ 8822.130804][ T253] [ 8822.133131][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8822.133131][ T253] netdev_get_by_index+0x5e/0x80 [ 8822.133131][ T253] fib6_nh_init+0x3d8/0x1580 [ 8822.133131][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8822.133131][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8822.133131][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8822.133131][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8822.133131][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8822.133131][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8822.133131][ T253] addrconf_dad_begin+0x310/0x670 [ 8822.133131][ T253] addrconf_dad_work+0x10b/0xab0 [ 8822.133131][ T253] process_one_work+0x84d/0x18a0 [ 8822.133131][ T253] worker_thread+0x587/0xd30 [ 8822.133131][ T253] kthread+0x28a/0x350 [ 8822.133131][ T253] ret_from_fork+0x31/0x70 [ 8822.133131][ T253] ret_from_fork_asm+0x1a/0x30 [ 8822.133131][ T253] [ 8822.136413][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8822.136413][ T253] netdev_get_by_index+0x5e/0x80 [ 8822.136413][ T253] fib6_nh_init+0x3d8/0x1580 [ 8822.136413][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8822.136413][ T253] ip6_route_add+0x1c/0x140 [ 8822.136413][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8822.136413][ T253] inet6_addr_add+0x4f8/0xa40 [ 8822.136413][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8822.136413][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8822.136413][ T253] netlink_rcv_skb+0x130/0x360 [ 8822.136413][ T253] netlink_unicast+0x449/0x710 [ 8822.136413][ T253] netlink_sendmsg+0x723/0xbe0 [ 8822.136413][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8822.136413][ T253] ___sys_sendmsg+0xee/0x170 [ 8822.136413][ T253] __sys_sendmsg+0xcd/0x170 [ 8822.136413][ T253] do_syscall_64+0xc6/0x1e0 [ 8822.136413][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8822.136413][ T253] [ 8822.139885][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8822.139885][ T253] netdev_get_by_index+0x5e/0x80 [ 8822.139885][ T253] fib6_nh_init+0x3d8/0x1580 [ 8822.139885][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8822.139885][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8822.139885][ T253] ipv6_add_addr+0x411/0x2000 [ 8822.139885][ T253] inet6_addr_add+0x30e/0xa40 [ 8822.139885][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8822.139885][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8822.139885][ T253] netlink_rcv_skb+0x130/0x360 [ 8822.139885][ T253] netlink_unicast+0x449/0x710 [ 8822.139885][ T253] netlink_sendmsg+0x723/0xbe0 [ 8822.139885][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8822.139885][ T253] ___sys_sendmsg+0xee/0x170 [ 8822.139885][ T253] __sys_sendmsg+0xcd/0x170 [ 8822.139885][ T253] do_syscall_64+0xc6/0x1e0 [ 8822.139885][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8822.139885][ T253] [ 8822.143372][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8822.143372][ T253] netdev_get_by_index+0x5e/0x80 [ 8822.143372][ T253] fib6_nh_init+0x3d8/0x1580 [ 8822.143372][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8822.143372][ T253] ip6_route_add+0x1c/0x140 [ 8822.143372][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8822.143372][ T253] addrconf_add_dev+0xe2/0x170 [ 8822.143372][ T253] inet6_addr_add+0x12f/0xa40 [ 8822.143372][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8822.143372][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8822.143372][ T253] netlink_rcv_skb+0x130/0x360 [ 8822.143372][ T253] netlink_unicast+0x449/0x710 [ 8822.143372][ T253] netlink_sendmsg+0x723/0xbe0 [ 8822.143372][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8822.143372][ T253] ___sys_sendmsg+0xee/0x170 [ 8822.143372][ T253] __sys_sendmsg+0xcd/0x170 [ 8822.143372][ T253] do_syscall_64+0xc6/0x1e0 [ 8822.143372][ T253] [ 8822.145719][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8822.145719][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8822.145719][ T253] ipv6_find_idev+0x102/0x170 [ 8822.145719][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8822.145719][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8822.145719][ T253] netlink_rcv_skb+0x130/0x360 [ 8822.145719][ T253] netlink_unicast+0x449/0x710 [ 8822.145719][ T253] netlink_sendmsg+0x723/0xbe0 [ 8822.145719][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8822.145719][ T253] ___sys_sendmsg+0xee/0x170 [ 8822.145719][ T253] __sys_sendmsg+0xcd/0x170 [ 8822.145719][ T253] do_syscall_64+0xc6/0x1e0 [ 8822.145719][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8822.145719][ T253] [ 8822.147459][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8822.147459][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8822.147459][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8822.147459][ T253] ipv6_find_idev+0x102/0x170 [ 8822.147459][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8822.147459][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8822.147459][ T253] netlink_rcv_skb+0x130/0x360 [ 8822.147459][ T253] netlink_unicast+0x449/0x710 [ 8822.147459][ T253] netlink_sendmsg+0x723/0xbe0 [ 8822.147459][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8822.147459][ T253] ___sys_sendmsg+0xee/0x170 [ 8822.147459][ T253] __sys_sendmsg+0xcd/0x170 [ 8822.147459][ T253] do_syscall_64+0xc6/0x1e0 [ 8822.147459][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8822.147459][ T253] [ 8832.386233][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8832.386707][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8832.386707][ T253] dst_init+0x84/0x4a0 [ 8832.386707][ T253] dst_alloc+0x97/0x150 [ 8832.386707][ T253] ip6_dst_alloc+0x23/0x90 [ 8832.386707][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8832.386707][ T253] ip6_pol_route+0x56f/0x840 [ 8832.386707][ T253] fib6_rule_lookup+0x334/0x630 [ 8832.386707][ T253] ip6_route_output_flags+0x259/0x480 [ 8832.386707][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8832.386707][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8832.386707][ T253] netlink_rcv_skb+0x130/0x360 [ 8832.386707][ T253] netlink_unicast+0x449/0x710 [ 8832.386707][ T253] netlink_sendmsg+0x723/0xbe0 [ 8832.386707][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8832.386707][ T253] ___sys_sendmsg+0xee/0x170 [ 8832.386707][ T253] __sys_sendmsg+0xcd/0x170 [ 8832.386707][ T253] do_syscall_64+0xc6/0x1e0 [ 8832.386707][ T253] [ 8832.388913][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8832.388913][ T253] netdev_get_by_index+0x5e/0x80 [ 8832.388913][ T253] fib6_nh_init+0x3d8/0x1580 [ 8832.388913][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8832.388913][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8832.388913][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8832.388913][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8832.388913][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8832.388913][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8832.388913][ T253] addrconf_dad_begin+0x310/0x670 [ 8832.388913][ T253] addrconf_dad_work+0x10b/0xab0 [ 8832.388913][ T253] process_one_work+0x84d/0x18a0 [ 8832.388913][ T253] worker_thread+0x587/0xd30 [ 8832.388913][ T253] kthread+0x28a/0x350 [ 8832.388913][ T253] ret_from_fork+0x31/0x70 [ 8832.388913][ T253] ret_from_fork_asm+0x1a/0x30 [ 8832.388913][ T253] [ 8832.391059][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8832.391059][ T253] netdev_get_by_index+0x5e/0x80 [ 8832.391059][ T253] fib6_nh_init+0x3d8/0x1580 [ 8832.391059][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8832.391059][ T253] ip6_route_add+0x1c/0x140 [ 8832.391059][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8832.391059][ T253] inet6_addr_add+0x4f8/0xa40 [ 8832.391059][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8832.391059][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8832.391059][ T253] netlink_rcv_skb+0x130/0x360 [ 8832.391059][ T253] netlink_unicast+0x449/0x710 [ 8832.391059][ T253] netlink_sendmsg+0x723/0xbe0 [ 8832.391059][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8832.391059][ T253] ___sys_sendmsg+0xee/0x170 [ 8832.391059][ T253] __sys_sendmsg+0xcd/0x170 [ 8832.391059][ T253] do_syscall_64+0xc6/0x1e0 [ 8832.391059][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8832.391059][ T253] [ 8832.393306][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8832.393306][ T253] netdev_get_by_index+0x5e/0x80 [ 8832.393306][ T253] fib6_nh_init+0x3d8/0x1580 [ 8832.393306][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8832.393306][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8832.393306][ T253] ipv6_add_addr+0x411/0x2000 [ 8832.393306][ T253] inet6_addr_add+0x30e/0xa40 [ 8832.393306][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8832.393306][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8832.393306][ T253] netlink_rcv_skb+0x130/0x360 [ 8832.393306][ T253] netlink_unicast+0x449/0x710 [ 8832.393306][ T253] netlink_sendmsg+0x723/0xbe0 [ 8832.393306][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8832.393306][ T253] ___sys_sendmsg+0xee/0x170 [ 8832.393306][ T253] __sys_sendmsg+0xcd/0x170 [ 8832.393306][ T253] do_syscall_64+0xc6/0x1e0 [ 8832.393306][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8832.393306][ T253] [ 8832.395541][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8832.395541][ T253] netdev_get_by_index+0x5e/0x80 [ 8832.395541][ T253] fib6_nh_init+0x3d8/0x1580 [ 8832.395541][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8832.395541][ T253] ip6_route_add+0x1c/0x140 [ 8832.395541][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8832.395541][ T253] addrconf_add_dev+0xe2/0x170 [ 8832.395541][ T253] inet6_addr_add+0x12f/0xa40 [ 8832.395541][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8832.395541][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8832.395541][ T253] netlink_rcv_skb+0x130/0x360 [ 8832.395541][ T253] netlink_unicast+0x449/0x710 [ 8832.395541][ T253] netlink_sendmsg+0x723/0xbe0 [ 8832.395541][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8832.395541][ T253] ___sys_sendmsg+0xee/0x170 [ 8832.395541][ T253] __sys_sendmsg+0xcd/0x170 [ 8832.395541][ T253] do_syscall_64+0xc6/0x1e0 [ 8832.395541][ T253] [ 8832.397740][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8832.397740][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8832.397740][ T253] ipv6_find_idev+0x102/0x170 [ 8832.397740][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8832.397740][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8832.397740][ T253] netlink_rcv_skb+0x130/0x360 [ 8832.397740][ T253] netlink_unicast+0x449/0x710 [ 8832.397740][ T253] netlink_sendmsg+0x723/0xbe0 [ 8832.397740][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8832.397740][ T253] ___sys_sendmsg+0xee/0x170 [ 8832.397740][ T253] __sys_sendmsg+0xcd/0x170 [ 8832.397740][ T253] do_syscall_64+0xc6/0x1e0 [ 8832.397740][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8832.397740][ T253] [ 8832.399992][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8832.399992][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8832.399992][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8832.399992][ T253] ipv6_find_idev+0x102/0x170 [ 8832.399992][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8832.399992][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8832.399992][ T253] netlink_rcv_skb+0x130/0x360 [ 8832.399992][ T253] netlink_unicast+0x449/0x710 [ 8832.399992][ T253] netlink_sendmsg+0x723/0xbe0 [ 8832.399992][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8832.399992][ T253] ___sys_sendmsg+0xee/0x170 [ 8832.399992][ T253] __sys_sendmsg+0xcd/0x170 [ 8832.399992][ T253] do_syscall_64+0xc6/0x1e0 [ 8832.399992][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8832.399992][ T253] [ 8842.498330][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8842.498810][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8842.498810][ T253] dst_init+0x84/0x4a0 [ 8842.498810][ T253] dst_alloc+0x97/0x150 [ 8842.498810][ T253] ip6_dst_alloc+0x23/0x90 [ 8842.498810][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8842.498810][ T253] ip6_pol_route+0x56f/0x840 [ 8842.498810][ T253] fib6_rule_lookup+0x334/0x630 [ 8842.498810][ T253] ip6_route_output_flags+0x259/0x480 [ 8842.498810][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8842.498810][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8842.498810][ T253] netlink_rcv_skb+0x130/0x360 [ 8842.498810][ T253] netlink_unicast+0x449/0x710 [ 8842.498810][ T253] netlink_sendmsg+0x723/0xbe0 [ 8842.498810][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8842.498810][ T253] ___sys_sendmsg+0xee/0x170 [ 8842.498810][ T253] __sys_sendmsg+0xcd/0x170 [ 8842.498810][ T253] do_syscall_64+0xc6/0x1e0 [ 8842.498810][ T253] [ 8842.501077][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8842.501077][ T253] netdev_get_by_index+0x5e/0x80 [ 8842.501077][ T253] fib6_nh_init+0x3d8/0x1580 [ 8842.501077][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8842.501077][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8842.501077][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8842.501077][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8842.501077][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8842.501077][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8842.501077][ T253] addrconf_dad_begin+0x310/0x670 [ 8842.501077][ T253] addrconf_dad_work+0x10b/0xab0 [ 8842.501077][ T253] process_one_work+0x84d/0x18a0 [ 8842.501077][ T253] worker_thread+0x587/0xd30 [ 8842.501077][ T253] kthread+0x28a/0x350 [ 8842.501077][ T253] ret_from_fork+0x31/0x70 [ 8842.501077][ T253] ret_from_fork_asm+0x1a/0x30 [ 8842.501077][ T253] [ 8842.503225][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8842.503225][ T253] netdev_get_by_index+0x5e/0x80 [ 8842.503225][ T253] fib6_nh_init+0x3d8/0x1580 [ 8842.503225][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8842.503225][ T253] ip6_route_add+0x1c/0x140 [ 8842.503225][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8842.503225][ T253] inet6_addr_add+0x4f8/0xa40 [ 8842.503225][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8842.503225][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8842.503225][ T253] netlink_rcv_skb+0x130/0x360 [ 8842.503225][ T253] netlink_unicast+0x449/0x710 [ 8842.503225][ T253] netlink_sendmsg+0x723/0xbe0 [ 8842.503225][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8842.503225][ T253] ___sys_sendmsg+0xee/0x170 [ 8842.503225][ T253] __sys_sendmsg+0xcd/0x170 [ 8842.503225][ T253] do_syscall_64+0xc6/0x1e0 [ 8842.503225][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8842.503225][ T253] [ 8842.505466][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8842.505466][ T253] netdev_get_by_index+0x5e/0x80 [ 8842.505466][ T253] fib6_nh_init+0x3d8/0x1580 [ 8842.505466][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8842.505466][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8842.505466][ T253] ipv6_add_addr+0x411/0x2000 [ 8842.505466][ T253] inet6_addr_add+0x30e/0xa40 [ 8842.505466][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8842.505466][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8842.505466][ T253] netlink_rcv_skb+0x130/0x360 [ 8842.505466][ T253] netlink_unicast+0x449/0x710 [ 8842.505466][ T253] netlink_sendmsg+0x723/0xbe0 [ 8842.505466][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8842.505466][ T253] ___sys_sendmsg+0xee/0x170 [ 8842.505466][ T253] __sys_sendmsg+0xcd/0x170 [ 8842.505466][ T253] do_syscall_64+0xc6/0x1e0 [ 8842.505466][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8842.505466][ T253] [ 8842.507713][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8842.507713][ T253] netdev_get_by_index+0x5e/0x80 [ 8842.507713][ T253] fib6_nh_init+0x3d8/0x1580 [ 8842.507713][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8842.507713][ T253] ip6_route_add+0x1c/0x140 [ 8842.507713][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8842.507713][ T253] addrconf_add_dev+0xe2/0x170 [ 8842.507713][ T253] inet6_addr_add+0x12f/0xa40 [ 8842.507713][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8842.507713][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8842.507713][ T253] netlink_rcv_skb+0x130/0x360 [ 8842.507713][ T253] netlink_unicast+0x449/0x710 [ 8842.507713][ T253] netlink_sendmsg+0x723/0xbe0 [ 8842.507713][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8842.507713][ T253] ___sys_sendmsg+0xee/0x170 [ 8842.507713][ T253] __sys_sendmsg+0xcd/0x170 [ 8842.507713][ T253] do_syscall_64+0xc6/0x1e0 [ 8842.507713][ T253] [ 8842.509914][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8842.509914][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8842.509914][ T253] ipv6_find_idev+0x102/0x170 [ 8842.509914][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8842.509914][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8842.509914][ T253] netlink_rcv_skb+0x130/0x360 [ 8842.509914][ T253] netlink_unicast+0x449/0x710 [ 8842.509914][ T253] netlink_sendmsg+0x723/0xbe0 [ 8842.509914][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8842.509914][ T253] ___sys_sendmsg+0xee/0x170 [ 8842.509914][ T253] __sys_sendmsg+0xcd/0x170 [ 8842.509914][ T253] do_syscall_64+0xc6/0x1e0 [ 8842.509914][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8842.509914][ T253] [ 8842.511644][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8842.511644][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8842.511644][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8842.511644][ T253] ipv6_find_idev+0x102/0x170 [ 8842.511644][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8842.511644][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8842.511644][ T253] netlink_rcv_skb+0x130/0x360 [ 8842.511644][ T253] netlink_unicast+0x449/0x710 [ 8842.511644][ T253] netlink_sendmsg+0x723/0xbe0 [ 8842.511644][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8842.511644][ T253] ___sys_sendmsg+0xee/0x170 [ 8842.511644][ T253] __sys_sendmsg+0xcd/0x170 [ 8842.511644][ T253] do_syscall_64+0xc6/0x1e0 [ 8842.511644][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8842.511644][ T253] [ 8852.754300][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8852.754780][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8852.754780][ T253] dst_init+0x84/0x4a0 [ 8852.754780][ T253] dst_alloc+0x97/0x150 [ 8852.754780][ T253] ip6_dst_alloc+0x23/0x90 [ 8852.754780][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8852.754780][ T253] ip6_pol_route+0x56f/0x840 [ 8852.754780][ T253] fib6_rule_lookup+0x334/0x630 [ 8852.754780][ T253] ip6_route_output_flags+0x259/0x480 [ 8852.754780][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8852.754780][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8852.754780][ T253] netlink_rcv_skb+0x130/0x360 [ 8852.754780][ T253] netlink_unicast+0x449/0x710 [ 8852.754780][ T253] netlink_sendmsg+0x723/0xbe0 [ 8852.754780][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8852.754780][ T253] ___sys_sendmsg+0xee/0x170 [ 8852.754780][ T253] __sys_sendmsg+0xcd/0x170 [ 8852.754780][ T253] do_syscall_64+0xc6/0x1e0 [ 8852.754780][ T253] [ 8852.757009][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8852.757009][ T253] netdev_get_by_index+0x5e/0x80 [ 8852.757009][ T253] fib6_nh_init+0x3d8/0x1580 [ 8852.757009][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8852.757009][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8852.757009][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8852.757009][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8852.757009][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8852.757009][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8852.757009][ T253] addrconf_dad_begin+0x310/0x670 [ 8852.757009][ T253] addrconf_dad_work+0x10b/0xab0 [ 8852.757009][ T253] process_one_work+0x84d/0x18a0 [ 8852.757009][ T253] worker_thread+0x587/0xd30 [ 8852.757009][ T253] kthread+0x28a/0x350 [ 8852.757009][ T253] ret_from_fork+0x31/0x70 [ 8852.757009][ T253] ret_from_fork_asm+0x1a/0x30 [ 8852.757009][ T253] [ 8852.759171][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8852.759171][ T253] netdev_get_by_index+0x5e/0x80 [ 8852.759171][ T253] fib6_nh_init+0x3d8/0x1580 [ 8852.759171][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8852.759171][ T253] ip6_route_add+0x1c/0x140 [ 8852.759171][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8852.759171][ T253] inet6_addr_add+0x4f8/0xa40 [ 8852.759171][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8852.759171][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8852.759171][ T253] netlink_rcv_skb+0x130/0x360 [ 8852.759171][ T253] netlink_unicast+0x449/0x710 [ 8852.759171][ T253] netlink_sendmsg+0x723/0xbe0 [ 8852.759171][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8852.759171][ T253] ___sys_sendmsg+0xee/0x170 [ 8852.759171][ T253] __sys_sendmsg+0xcd/0x170 [ 8852.759171][ T253] do_syscall_64+0xc6/0x1e0 [ 8852.759171][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8852.759171][ T253] [ 8852.761433][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8852.761433][ T253] netdev_get_by_index+0x5e/0x80 [ 8852.761433][ T253] fib6_nh_init+0x3d8/0x1580 [ 8852.761433][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8852.761433][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8852.761433][ T253] ipv6_add_addr+0x411/0x2000 [ 8852.761433][ T253] inet6_addr_add+0x30e/0xa40 [ 8852.761433][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8852.761433][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8852.761433][ T253] netlink_rcv_skb+0x130/0x360 [ 8852.761433][ T253] netlink_unicast+0x449/0x710 [ 8852.761433][ T253] netlink_sendmsg+0x723/0xbe0 [ 8852.761433][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8852.761433][ T253] ___sys_sendmsg+0xee/0x170 [ 8852.761433][ T253] __sys_sendmsg+0xcd/0x170 [ 8852.761433][ T253] do_syscall_64+0xc6/0x1e0 [ 8852.761433][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8852.761433][ T253] [ 8852.763677][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8852.763677][ T253] netdev_get_by_index+0x5e/0x80 [ 8852.763677][ T253] fib6_nh_init+0x3d8/0x1580 [ 8852.763677][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8852.763677][ T253] ip6_route_add+0x1c/0x140 [ 8852.763677][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8852.763677][ T253] addrconf_add_dev+0xe2/0x170 [ 8852.763677][ T253] inet6_addr_add+0x12f/0xa40 [ 8852.763677][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8852.763677][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8852.763677][ T253] netlink_rcv_skb+0x130/0x360 [ 8852.763677][ T253] netlink_unicast+0x449/0x710 [ 8852.763677][ T253] netlink_sendmsg+0x723/0xbe0 [ 8852.763677][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8852.763677][ T253] ___sys_sendmsg+0xee/0x170 [ 8852.763677][ T253] __sys_sendmsg+0xcd/0x170 [ 8852.763677][ T253] do_syscall_64+0xc6/0x1e0 [ 8852.763677][ T253] [ 8852.765897][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8852.765897][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8852.765897][ T253] ipv6_find_idev+0x102/0x170 [ 8852.765897][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8852.765897][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8852.765897][ T253] netlink_rcv_skb+0x130/0x360 [ 8852.765897][ T253] netlink_unicast+0x449/0x710 [ 8852.765897][ T253] netlink_sendmsg+0x723/0xbe0 [ 8852.765897][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8852.765897][ T253] ___sys_sendmsg+0xee/0x170 [ 8852.765897][ T253] __sys_sendmsg+0xcd/0x170 [ 8852.765897][ T253] do_syscall_64+0xc6/0x1e0 [ 8852.765897][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8852.765897][ T253] [ 8852.767623][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8852.767623][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8852.767623][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8852.767623][ T253] ipv6_find_idev+0x102/0x170 [ 8852.767623][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8852.767623][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8852.767623][ T253] netlink_rcv_skb+0x130/0x360 [ 8852.767623][ T253] netlink_unicast+0x449/0x710 [ 8852.767623][ T253] netlink_sendmsg+0x723/0xbe0 [ 8852.767623][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8852.767623][ T253] ___sys_sendmsg+0xee/0x170 [ 8852.767623][ T253] __sys_sendmsg+0xcd/0x170 [ 8852.767623][ T253] do_syscall_64+0xc6/0x1e0 [ 8852.767623][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8852.767623][ T253] [ 8862.866229][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8862.866722][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8862.866722][ T253] dst_init+0x84/0x4a0 [ 8862.866722][ T253] dst_alloc+0x97/0x150 [ 8862.866722][ T253] ip6_dst_alloc+0x23/0x90 [ 8862.866722][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8862.866722][ T253] ip6_pol_route+0x56f/0x840 [ 8862.866722][ T253] fib6_rule_lookup+0x334/0x630 [ 8862.866722][ T253] ip6_route_output_flags+0x259/0x480 [ 8862.866722][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8862.866722][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8862.866722][ T253] netlink_rcv_skb+0x130/0x360 [ 8862.866722][ T253] netlink_unicast+0x449/0x710 [ 8862.866722][ T253] netlink_sendmsg+0x723/0xbe0 [ 8862.866722][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8862.866722][ T253] ___sys_sendmsg+0xee/0x170 [ 8862.866722][ T253] __sys_sendmsg+0xcd/0x170 [ 8862.866722][ T253] do_syscall_64+0xc6/0x1e0 [ 8862.866722][ T253] [ 8862.868959][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8862.868959][ T253] netdev_get_by_index+0x5e/0x80 [ 8862.868959][ T253] fib6_nh_init+0x3d8/0x1580 [ 8862.868959][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8862.868959][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8862.868959][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8862.868959][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8862.868959][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8862.868959][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8862.868959][ T253] addrconf_dad_begin+0x310/0x670 [ 8862.868959][ T253] addrconf_dad_work+0x10b/0xab0 [ 8862.868959][ T253] process_one_work+0x84d/0x18a0 [ 8862.868959][ T253] worker_thread+0x587/0xd30 [ 8862.868959][ T253] kthread+0x28a/0x350 [ 8862.868959][ T253] ret_from_fork+0x31/0x70 [ 8862.868959][ T253] ret_from_fork_asm+0x1a/0x30 [ 8862.868959][ T253] [ 8862.871141][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8862.871141][ T253] netdev_get_by_index+0x5e/0x80 [ 8862.871141][ T253] fib6_nh_init+0x3d8/0x1580 [ 8862.871141][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8862.871141][ T253] ip6_route_add+0x1c/0x140 [ 8862.871141][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8862.871141][ T253] inet6_addr_add+0x4f8/0xa40 [ 8862.871141][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8862.871141][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8862.871141][ T253] netlink_rcv_skb+0x130/0x360 [ 8862.871141][ T253] netlink_unicast+0x449/0x710 [ 8862.871141][ T253] netlink_sendmsg+0x723/0xbe0 [ 8862.871141][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8862.871141][ T253] ___sys_sendmsg+0xee/0x170 [ 8862.871141][ T253] __sys_sendmsg+0xcd/0x170 [ 8862.871141][ T253] do_syscall_64+0xc6/0x1e0 [ 8862.871141][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8862.871141][ T253] [ 8862.873421][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8862.873421][ T253] netdev_get_by_index+0x5e/0x80 [ 8862.873421][ T253] fib6_nh_init+0x3d8/0x1580 [ 8862.873421][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8862.873421][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8862.873421][ T253] ipv6_add_addr+0x411/0x2000 [ 8862.873421][ T253] inet6_addr_add+0x30e/0xa40 [ 8862.873421][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8862.873421][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8862.873421][ T253] netlink_rcv_skb+0x130/0x360 [ 8862.873421][ T253] netlink_unicast+0x449/0x710 [ 8862.873421][ T253] netlink_sendmsg+0x723/0xbe0 [ 8862.873421][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8862.873421][ T253] ___sys_sendmsg+0xee/0x170 [ 8862.873421][ T253] __sys_sendmsg+0xcd/0x170 [ 8862.873421][ T253] do_syscall_64+0xc6/0x1e0 [ 8862.873421][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8862.873421][ T253] [ 8862.875702][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8862.875702][ T253] netdev_get_by_index+0x5e/0x80 [ 8862.875702][ T253] fib6_nh_init+0x3d8/0x1580 [ 8862.875702][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8862.875702][ T253] ip6_route_add+0x1c/0x140 [ 8862.875702][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8862.875702][ T253] addrconf_add_dev+0xe2/0x170 [ 8862.875702][ T253] inet6_addr_add+0x12f/0xa40 [ 8862.875702][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8862.875702][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8862.875702][ T253] netlink_rcv_skb+0x130/0x360 [ 8862.875702][ T253] netlink_unicast+0x449/0x710 [ 8862.875702][ T253] netlink_sendmsg+0x723/0xbe0 [ 8862.875702][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8862.875702][ T253] ___sys_sendmsg+0xee/0x170 [ 8862.875702][ T253] __sys_sendmsg+0xcd/0x170 [ 8862.875702][ T253] do_syscall_64+0xc6/0x1e0 [ 8862.875702][ T253] [ 8862.877938][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8862.877938][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8862.877938][ T253] ipv6_find_idev+0x102/0x170 [ 8862.877938][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8862.877938][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8862.877938][ T253] netlink_rcv_skb+0x130/0x360 [ 8862.877938][ T253] netlink_unicast+0x449/0x710 [ 8862.877938][ T253] netlink_sendmsg+0x723/0xbe0 [ 8862.877938][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8862.877938][ T253] ___sys_sendmsg+0xee/0x170 [ 8862.877938][ T253] __sys_sendmsg+0xcd/0x170 [ 8862.877938][ T253] do_syscall_64+0xc6/0x1e0 [ 8862.877938][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8862.877938][ T253] [ 8862.879705][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8862.879705][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8862.879705][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8862.879705][ T253] ipv6_find_idev+0x102/0x170 [ 8862.879705][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8862.879705][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8862.879705][ T253] netlink_rcv_skb+0x130/0x360 [ 8862.879705][ T253] netlink_unicast+0x449/0x710 [ 8862.879705][ T253] netlink_sendmsg+0x723/0xbe0 [ 8862.879705][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8862.879705][ T253] ___sys_sendmsg+0xee/0x170 [ 8862.879705][ T253] __sys_sendmsg+0xcd/0x170 [ 8862.879705][ T253] do_syscall_64+0xc6/0x1e0 [ 8862.879705][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8862.879705][ T253] [ 8872.930309][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8872.930792][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8872.930792][ T253] dst_init+0x84/0x4a0 [ 8872.930792][ T253] dst_alloc+0x97/0x150 [ 8872.930792][ T253] ip6_dst_alloc+0x23/0x90 [ 8872.930792][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8872.930792][ T253] ip6_pol_route+0x56f/0x840 [ 8872.930792][ T253] fib6_rule_lookup+0x334/0x630 [ 8872.930792][ T253] ip6_route_output_flags+0x259/0x480 [ 8872.930792][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8872.930792][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8872.930792][ T253] netlink_rcv_skb+0x130/0x360 [ 8872.930792][ T253] netlink_unicast+0x449/0x710 [ 8872.930792][ T253] netlink_sendmsg+0x723/0xbe0 [ 8872.930792][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8872.930792][ T253] ___sys_sendmsg+0xee/0x170 [ 8872.930792][ T253] __sys_sendmsg+0xcd/0x170 [ 8872.930792][ T253] do_syscall_64+0xc6/0x1e0 [ 8872.930792][ T253] [ 8872.932987][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8872.932987][ T253] netdev_get_by_index+0x5e/0x80 [ 8872.932987][ T253] fib6_nh_init+0x3d8/0x1580 [ 8872.932987][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8872.932987][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8872.932987][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8872.932987][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8872.932987][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8872.932987][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8872.932987][ T253] addrconf_dad_begin+0x310/0x670 [ 8872.932987][ T253] addrconf_dad_work+0x10b/0xab0 [ 8872.932987][ T253] process_one_work+0x84d/0x18a0 [ 8872.932987][ T253] worker_thread+0x587/0xd30 [ 8872.932987][ T253] kthread+0x28a/0x350 [ 8872.932987][ T253] ret_from_fork+0x31/0x70 [ 8872.932987][ T253] ret_from_fork_asm+0x1a/0x30 [ 8872.932987][ T253] [ 8872.935123][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8872.935123][ T253] netdev_get_by_index+0x5e/0x80 [ 8872.935123][ T253] fib6_nh_init+0x3d8/0x1580 [ 8872.935123][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8872.935123][ T253] ip6_route_add+0x1c/0x140 [ 8872.935123][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8872.935123][ T253] inet6_addr_add+0x4f8/0xa40 [ 8872.935123][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8872.935123][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8872.935123][ T253] netlink_rcv_skb+0x130/0x360 [ 8872.935123][ T253] netlink_unicast+0x449/0x710 [ 8872.935123][ T253] netlink_sendmsg+0x723/0xbe0 [ 8872.935123][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8872.935123][ T253] ___sys_sendmsg+0xee/0x170 [ 8872.935123][ T253] __sys_sendmsg+0xcd/0x170 [ 8872.935123][ T253] do_syscall_64+0xc6/0x1e0 [ 8872.935123][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8872.935123][ T253] [ 8872.937359][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8872.937359][ T253] netdev_get_by_index+0x5e/0x80 [ 8872.937359][ T253] fib6_nh_init+0x3d8/0x1580 [ 8872.937359][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8872.937359][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8872.937359][ T253] ipv6_add_addr+0x411/0x2000 [ 8872.937359][ T253] inet6_addr_add+0x30e/0xa40 [ 8872.937359][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8872.937359][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8872.937359][ T253] netlink_rcv_skb+0x130/0x360 [ 8872.937359][ T253] netlink_unicast+0x449/0x710 [ 8872.937359][ T253] netlink_sendmsg+0x723/0xbe0 [ 8872.937359][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8872.937359][ T253] ___sys_sendmsg+0xee/0x170 [ 8872.937359][ T253] __sys_sendmsg+0xcd/0x170 [ 8872.937359][ T253] do_syscall_64+0xc6/0x1e0 [ 8872.937359][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8872.937359][ T253] [ 8872.939599][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8872.939599][ T253] netdev_get_by_index+0x5e/0x80 [ 8872.939599][ T253] fib6_nh_init+0x3d8/0x1580 [ 8872.939599][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8872.939599][ T253] ip6_route_add+0x1c/0x140 [ 8872.939599][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8872.939599][ T253] addrconf_add_dev+0xe2/0x170 [ 8872.939599][ T253] inet6_addr_add+0x12f/0xa40 [ 8872.939599][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8872.939599][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8872.939599][ T253] netlink_rcv_skb+0x130/0x360 [ 8872.939599][ T253] netlink_unicast+0x449/0x710 [ 8872.939599][ T253] netlink_sendmsg+0x723/0xbe0 [ 8872.939599][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8872.939599][ T253] ___sys_sendmsg+0xee/0x170 [ 8872.939599][ T253] __sys_sendmsg+0xcd/0x170 [ 8872.939599][ T253] do_syscall_64+0xc6/0x1e0 [ 8872.939599][ T253] [ 8872.941802][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8872.941802][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8872.941802][ T253] ipv6_find_idev+0x102/0x170 [ 8872.941802][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8872.941802][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8872.941802][ T253] netlink_rcv_skb+0x130/0x360 [ 8872.941802][ T253] netlink_unicast+0x449/0x710 [ 8872.941802][ T253] netlink_sendmsg+0x723/0xbe0 [ 8872.941802][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8872.941802][ T253] ___sys_sendmsg+0xee/0x170 [ 8872.941802][ T253] __sys_sendmsg+0xcd/0x170 [ 8872.941802][ T253] do_syscall_64+0xc6/0x1e0 [ 8872.941802][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8872.941802][ T253] [ 8872.943526][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8872.943526][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8872.943526][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8872.943526][ T253] ipv6_find_idev+0x102/0x170 [ 8872.943526][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8872.943526][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8872.943526][ T253] netlink_rcv_skb+0x130/0x360 [ 8872.943526][ T253] netlink_unicast+0x449/0x710 [ 8872.943526][ T253] netlink_sendmsg+0x723/0xbe0 [ 8872.943526][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8872.943526][ T253] ___sys_sendmsg+0xee/0x170 [ 8872.943526][ T253] __sys_sendmsg+0xcd/0x170 [ 8872.943526][ T253] do_syscall_64+0xc6/0x1e0 [ 8872.943526][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8872.943526][ T253] [ 8883.170310][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8883.170737][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8883.170737][ T253] dst_init+0x84/0x4a0 [ 8883.170737][ T253] dst_alloc+0x97/0x150 [ 8883.170737][ T253] ip6_dst_alloc+0x23/0x90 [ 8883.170737][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8883.170737][ T253] ip6_pol_route+0x56f/0x840 [ 8883.170737][ T253] fib6_rule_lookup+0x334/0x630 [ 8883.170737][ T253] ip6_route_output_flags+0x259/0x480 [ 8883.170737][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8883.170737][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8883.170737][ T253] netlink_rcv_skb+0x130/0x360 [ 8883.170737][ T253] netlink_unicast+0x449/0x710 [ 8883.170737][ T253] netlink_sendmsg+0x723/0xbe0 [ 8883.170737][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8883.170737][ T253] ___sys_sendmsg+0xee/0x170 [ 8883.170737][ T253] __sys_sendmsg+0xcd/0x170 [ 8883.170737][ T253] do_syscall_64+0xc6/0x1e0 [ 8883.170737][ T253] [ 8883.172943][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8883.172943][ T253] netdev_get_by_index+0x5e/0x80 [ 8883.172943][ T253] fib6_nh_init+0x3d8/0x1580 [ 8883.172943][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8883.172943][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8883.172943][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8883.172943][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8883.172943][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8883.172943][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8883.172943][ T253] addrconf_dad_begin+0x310/0x670 [ 8883.172943][ T253] addrconf_dad_work+0x10b/0xab0 [ 8883.172943][ T253] process_one_work+0x84d/0x18a0 [ 8883.172943][ T253] worker_thread+0x587/0xd30 [ 8883.172943][ T253] kthread+0x28a/0x350 [ 8883.172943][ T253] ret_from_fork+0x31/0x70 [ 8883.172943][ T253] ret_from_fork_asm+0x1a/0x30 [ 8883.172943][ T253] [ 8883.175098][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8883.175098][ T253] netdev_get_by_index+0x5e/0x80 [ 8883.175098][ T253] fib6_nh_init+0x3d8/0x1580 [ 8883.175098][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8883.175098][ T253] ip6_route_add+0x1c/0x140 [ 8883.175098][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8883.175098][ T253] inet6_addr_add+0x4f8/0xa40 [ 8883.175098][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8883.175098][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8883.175098][ T253] netlink_rcv_skb+0x130/0x360 [ 8883.175098][ T253] netlink_unicast+0x449/0x710 [ 8883.175098][ T253] netlink_sendmsg+0x723/0xbe0 [ 8883.175098][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8883.175098][ T253] ___sys_sendmsg+0xee/0x170 [ 8883.175098][ T253] __sys_sendmsg+0xcd/0x170 [ 8883.175098][ T253] do_syscall_64+0xc6/0x1e0 [ 8883.175098][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8883.175098][ T253] [ 8883.177353][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8883.177353][ T253] netdev_get_by_index+0x5e/0x80 [ 8883.177353][ T253] fib6_nh_init+0x3d8/0x1580 [ 8883.177353][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8883.177353][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8883.177353][ T253] ipv6_add_addr+0x411/0x2000 [ 8883.177353][ T253] inet6_addr_add+0x30e/0xa40 [ 8883.177353][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8883.177353][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8883.177353][ T253] netlink_rcv_skb+0x130/0x360 [ 8883.177353][ T253] netlink_unicast+0x449/0x710 [ 8883.177353][ T253] netlink_sendmsg+0x723/0xbe0 [ 8883.177353][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8883.177353][ T253] ___sys_sendmsg+0xee/0x170 [ 8883.177353][ T253] __sys_sendmsg+0xcd/0x170 [ 8883.177353][ T253] do_syscall_64+0xc6/0x1e0 [ 8883.177353][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8883.177353][ T253] [ 8883.179612][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8883.179612][ T253] netdev_get_by_index+0x5e/0x80 [ 8883.179612][ T253] fib6_nh_init+0x3d8/0x1580 [ 8883.179612][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8883.179612][ T253] ip6_route_add+0x1c/0x140 [ 8883.179612][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8883.179612][ T253] addrconf_add_dev+0xe2/0x170 [ 8883.179612][ T253] inet6_addr_add+0x12f/0xa40 [ 8883.179612][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8883.179612][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8883.179612][ T253] netlink_rcv_skb+0x130/0x360 [ 8883.179612][ T253] netlink_unicast+0x449/0x710 [ 8883.179612][ T253] netlink_sendmsg+0x723/0xbe0 [ 8883.179612][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8883.179612][ T253] ___sys_sendmsg+0xee/0x170 [ 8883.179612][ T253] __sys_sendmsg+0xcd/0x170 [ 8883.179612][ T253] do_syscall_64+0xc6/0x1e0 [ 8883.179612][ T253] [ 8883.181824][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8883.181824][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8883.181824][ T253] ipv6_find_idev+0x102/0x170 [ 8883.181824][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8883.181824][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8883.181824][ T253] netlink_rcv_skb+0x130/0x360 [ 8883.181824][ T253] netlink_unicast+0x449/0x710 [ 8883.181824][ T253] netlink_sendmsg+0x723/0xbe0 [ 8883.181824][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8883.181824][ T253] ___sys_sendmsg+0xee/0x170 [ 8883.181824][ T253] __sys_sendmsg+0xcd/0x170 [ 8883.181824][ T253] do_syscall_64+0xc6/0x1e0 [ 8883.181824][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8883.181824][ T253] [ 8883.183547][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8883.183547][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8883.183547][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8883.183547][ T253] ipv6_find_idev+0x102/0x170 [ 8883.183547][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8883.183547][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8883.183547][ T253] netlink_rcv_skb+0x130/0x360 [ 8883.183547][ T253] netlink_unicast+0x449/0x710 [ 8883.183547][ T253] netlink_sendmsg+0x723/0xbe0 [ 8883.183547][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8883.183547][ T253] ___sys_sendmsg+0xee/0x170 [ 8883.183547][ T253] __sys_sendmsg+0xcd/0x170 [ 8883.183547][ T253] do_syscall_64+0xc6/0x1e0 [ 8883.183547][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8883.183547][ T253] [ 8893.250298][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8893.250708][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8893.250708][ T253] dst_init+0x84/0x4a0 [ 8893.250708][ T253] dst_alloc+0x97/0x150 [ 8893.250708][ T253] ip6_dst_alloc+0x23/0x90 [ 8893.250708][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8893.250708][ T253] ip6_pol_route+0x56f/0x840 [ 8893.250708][ T253] fib6_rule_lookup+0x334/0x630 [ 8893.250708][ T253] ip6_route_output_flags+0x259/0x480 [ 8893.250708][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8893.250708][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8893.250708][ T253] netlink_rcv_skb+0x130/0x360 [ 8893.250708][ T253] netlink_unicast+0x449/0x710 [ 8893.250708][ T253] netlink_sendmsg+0x723/0xbe0 [ 8893.250708][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8893.250708][ T253] ___sys_sendmsg+0xee/0x170 [ 8893.250708][ T253] __sys_sendmsg+0xcd/0x170 [ 8893.250708][ T253] do_syscall_64+0xc6/0x1e0 [ 8893.250708][ T253] [ 8893.252901][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8893.252901][ T253] netdev_get_by_index+0x5e/0x80 [ 8893.252901][ T253] fib6_nh_init+0x3d8/0x1580 [ 8893.252901][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8893.252901][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8893.252901][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8893.252901][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8893.252901][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8893.252901][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8893.252901][ T253] addrconf_dad_begin+0x310/0x670 [ 8893.252901][ T253] addrconf_dad_work+0x10b/0xab0 [ 8893.252901][ T253] process_one_work+0x84d/0x18a0 [ 8893.252901][ T253] worker_thread+0x587/0xd30 [ 8893.252901][ T253] kthread+0x28a/0x350 [ 8893.252901][ T253] ret_from_fork+0x31/0x70 [ 8893.252901][ T253] ret_from_fork_asm+0x1a/0x30 [ 8893.252901][ T253] [ 8893.255059][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8893.255059][ T253] netdev_get_by_index+0x5e/0x80 [ 8893.255059][ T253] fib6_nh_init+0x3d8/0x1580 [ 8893.255059][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8893.255059][ T253] ip6_route_add+0x1c/0x140 [ 8893.255059][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8893.255059][ T253] inet6_addr_add+0x4f8/0xa40 [ 8893.255059][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8893.255059][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8893.255059][ T253] netlink_rcv_skb+0x130/0x360 [ 8893.255059][ T253] netlink_unicast+0x449/0x710 [ 8893.255059][ T253] netlink_sendmsg+0x723/0xbe0 [ 8893.255059][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8893.255059][ T253] ___sys_sendmsg+0xee/0x170 [ 8893.255059][ T253] __sys_sendmsg+0xcd/0x170 [ 8893.255059][ T253] do_syscall_64+0xc6/0x1e0 [ 8893.255059][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8893.255059][ T253] [ 8893.257297][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8893.257297][ T253] netdev_get_by_index+0x5e/0x80 [ 8893.257297][ T253] fib6_nh_init+0x3d8/0x1580 [ 8893.257297][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8893.257297][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8893.257297][ T253] ipv6_add_addr+0x411/0x2000 [ 8893.257297][ T253] inet6_addr_add+0x30e/0xa40 [ 8893.257297][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8893.257297][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8893.257297][ T253] netlink_rcv_skb+0x130/0x360 [ 8893.257297][ T253] netlink_unicast+0x449/0x710 [ 8893.257297][ T253] netlink_sendmsg+0x723/0xbe0 [ 8893.257297][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8893.257297][ T253] ___sys_sendmsg+0xee/0x170 [ 8893.257297][ T253] __sys_sendmsg+0xcd/0x170 [ 8893.257297][ T253] do_syscall_64+0xc6/0x1e0 [ 8893.257297][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8893.257297][ T253] [ 8893.259541][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8893.259541][ T253] netdev_get_by_index+0x5e/0x80 [ 8893.259541][ T253] fib6_nh_init+0x3d8/0x1580 [ 8893.259541][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8893.259541][ T253] ip6_route_add+0x1c/0x140 [ 8893.259541][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8893.259541][ T253] addrconf_add_dev+0xe2/0x170 [ 8893.259541][ T253] inet6_addr_add+0x12f/0xa40 [ 8893.259541][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8893.259541][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8893.259541][ T253] netlink_rcv_skb+0x130/0x360 [ 8893.259541][ T253] netlink_unicast+0x449/0x710 [ 8893.259541][ T253] netlink_sendmsg+0x723/0xbe0 [ 8893.259541][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8893.259541][ T253] ___sys_sendmsg+0xee/0x170 [ 8893.259541][ T253] __sys_sendmsg+0xcd/0x170 [ 8893.259541][ T253] do_syscall_64+0xc6/0x1e0 [ 8893.259541][ T253] [ 8893.261739][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8893.261739][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8893.261739][ T253] ipv6_find_idev+0x102/0x170 [ 8893.261739][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8893.261739][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8893.261739][ T253] netlink_rcv_skb+0x130/0x360 [ 8893.261739][ T253] netlink_unicast+0x449/0x710 [ 8893.261739][ T253] netlink_sendmsg+0x723/0xbe0 [ 8893.261739][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8893.261739][ T253] ___sys_sendmsg+0xee/0x170 [ 8893.261739][ T253] __sys_sendmsg+0xcd/0x170 [ 8893.261739][ T253] do_syscall_64+0xc6/0x1e0 [ 8893.261739][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8893.261739][ T253] [ 8893.263460][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8893.263460][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8893.263460][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8893.263460][ T253] ipv6_find_idev+0x102/0x170 [ 8893.263460][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8893.263460][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8893.263460][ T253] netlink_rcv_skb+0x130/0x360 [ 8893.263460][ T253] netlink_unicast+0x449/0x710 [ 8893.263460][ T253] netlink_sendmsg+0x723/0xbe0 [ 8893.263460][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8893.263460][ T253] ___sys_sendmsg+0xee/0x170 [ 8893.263460][ T253] __sys_sendmsg+0xcd/0x170 [ 8893.263460][ T253] do_syscall_64+0xc6/0x1e0 [ 8893.263460][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8893.263460][ T253] [ 8903.506239][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8903.506652][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8903.506652][ T253] dst_init+0x84/0x4a0 [ 8903.506652][ T253] dst_alloc+0x97/0x150 [ 8903.506652][ T253] ip6_dst_alloc+0x23/0x90 [ 8903.506652][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8903.506652][ T253] ip6_pol_route+0x56f/0x840 [ 8903.506652][ T253] fib6_rule_lookup+0x334/0x630 [ 8903.506652][ T253] ip6_route_output_flags+0x259/0x480 [ 8903.506652][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8903.506652][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8903.506652][ T253] netlink_rcv_skb+0x130/0x360 [ 8903.506652][ T253] netlink_unicast+0x449/0x710 [ 8903.506652][ T253] netlink_sendmsg+0x723/0xbe0 [ 8903.506652][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8903.506652][ T253] ___sys_sendmsg+0xee/0x170 [ 8903.506652][ T253] __sys_sendmsg+0xcd/0x170 [ 8903.506652][ T253] do_syscall_64+0xc6/0x1e0 [ 8903.506652][ T253] [ 8903.508857][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8903.508857][ T253] netdev_get_by_index+0x5e/0x80 [ 8903.508857][ T253] fib6_nh_init+0x3d8/0x1580 [ 8903.508857][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8903.508857][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8903.508857][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8903.508857][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8903.508857][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8903.508857][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8903.508857][ T253] addrconf_dad_begin+0x310/0x670 [ 8903.508857][ T253] addrconf_dad_work+0x10b/0xab0 [ 8903.508857][ T253] process_one_work+0x84d/0x18a0 [ 8903.508857][ T253] worker_thread+0x587/0xd30 [ 8903.508857][ T253] kthread+0x28a/0x350 [ 8903.508857][ T253] ret_from_fork+0x31/0x70 [ 8903.508857][ T253] ret_from_fork_asm+0x1a/0x30 [ 8903.508857][ T253] [ 8903.511513][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8903.511513][ T253] netdev_get_by_index+0x5e/0x80 [ 8903.511513][ T253] fib6_nh_init+0x3d8/0x1580 [ 8903.511513][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8903.511513][ T253] ip6_route_add+0x1c/0x140 [ 8903.511513][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8903.511513][ T253] inet6_addr_add+0x4f8/0xa40 [ 8903.511513][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8903.511513][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8903.511513][ T253] netlink_rcv_skb+0x130/0x360 [ 8903.511513][ T253] netlink_unicast+0x449/0x710 [ 8903.511513][ T253] netlink_sendmsg+0x723/0xbe0 [ 8903.511513][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8903.511513][ T253] ___sys_sendmsg+0xee/0x170 [ 8903.511513][ T253] __sys_sendmsg+0xcd/0x170 [ 8903.511513][ T253] do_syscall_64+0xc6/0x1e0 [ 8903.511513][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8903.511513][ T253] [ 8903.513758][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8903.513758][ T253] netdev_get_by_index+0x5e/0x80 [ 8903.513758][ T253] fib6_nh_init+0x3d8/0x1580 [ 8903.513758][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8903.513758][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8903.513758][ T253] ipv6_add_addr+0x411/0x2000 [ 8903.513758][ T253] inet6_addr_add+0x30e/0xa40 [ 8903.513758][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8903.513758][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8903.513758][ T253] netlink_rcv_skb+0x130/0x360 [ 8903.513758][ T253] netlink_unicast+0x449/0x710 [ 8903.513758][ T253] netlink_sendmsg+0x723/0xbe0 [ 8903.513758][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8903.513758][ T253] ___sys_sendmsg+0xee/0x170 [ 8903.513758][ T253] __sys_sendmsg+0xcd/0x170 [ 8903.513758][ T253] do_syscall_64+0xc6/0x1e0 [ 8903.513758][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8903.513758][ T253] [ 8903.516001][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8903.516001][ T253] netdev_get_by_index+0x5e/0x80 [ 8903.516001][ T253] fib6_nh_init+0x3d8/0x1580 [ 8903.516001][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8903.516001][ T253] ip6_route_add+0x1c/0x140 [ 8903.516001][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8903.516001][ T253] addrconf_add_dev+0xe2/0x170 [ 8903.516001][ T253] inet6_addr_add+0x12f/0xa40 [ 8903.516001][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8903.516001][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8903.516001][ T253] netlink_rcv_skb+0x130/0x360 [ 8903.516001][ T253] netlink_unicast+0x449/0x710 [ 8903.516001][ T253] netlink_sendmsg+0x723/0xbe0 [ 8903.516001][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8903.516001][ T253] ___sys_sendmsg+0xee/0x170 [ 8903.516001][ T253] __sys_sendmsg+0xcd/0x170 [ 8903.516001][ T253] do_syscall_64+0xc6/0x1e0 [ 8903.516001][ T253] [ 8903.518203][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8903.518203][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8903.518203][ T253] ipv6_find_idev+0x102/0x170 [ 8903.518203][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8903.518203][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8903.518203][ T253] netlink_rcv_skb+0x130/0x360 [ 8903.518203][ T253] netlink_unicast+0x449/0x710 [ 8903.518203][ T253] netlink_sendmsg+0x723/0xbe0 [ 8903.518203][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8903.518203][ T253] ___sys_sendmsg+0xee/0x170 [ 8903.518203][ T253] __sys_sendmsg+0xcd/0x170 [ 8903.518203][ T253] do_syscall_64+0xc6/0x1e0 [ 8903.518203][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8903.518203][ T253] [ 8903.519935][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8903.519935][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8903.519935][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8903.519935][ T253] ipv6_find_idev+0x102/0x170 [ 8903.519935][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8903.519935][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8903.519935][ T253] netlink_rcv_skb+0x130/0x360 [ 8903.519935][ T253] netlink_unicast+0x449/0x710 [ 8903.519935][ T253] netlink_sendmsg+0x723/0xbe0 [ 8903.519935][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8903.519935][ T253] ___sys_sendmsg+0xee/0x170 [ 8903.519935][ T253] __sys_sendmsg+0xcd/0x170 [ 8903.519935][ T253] do_syscall_64+0xc6/0x1e0 [ 8903.519935][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8903.519935][ T253] [ 8913.842272][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8913.842693][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8913.842693][ T253] dst_init+0x84/0x4a0 [ 8913.842693][ T253] dst_alloc+0x97/0x150 [ 8913.842693][ T253] ip6_dst_alloc+0x23/0x90 [ 8913.842693][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8913.842693][ T253] ip6_pol_route+0x56f/0x840 [ 8913.842693][ T253] fib6_rule_lookup+0x334/0x630 [ 8913.842693][ T253] ip6_route_output_flags+0x259/0x480 [ 8913.842693][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8913.842693][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8913.842693][ T253] netlink_rcv_skb+0x130/0x360 [ 8913.842693][ T253] netlink_unicast+0x449/0x710 [ 8913.842693][ T253] netlink_sendmsg+0x723/0xbe0 [ 8913.842693][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8913.842693][ T253] ___sys_sendmsg+0xee/0x170 [ 8913.842693][ T253] __sys_sendmsg+0xcd/0x170 [ 8913.842693][ T253] do_syscall_64+0xc6/0x1e0 [ 8913.842693][ T253] [ 8913.844967][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8913.844967][ T253] netdev_get_by_index+0x5e/0x80 [ 8913.844967][ T253] fib6_nh_init+0x3d8/0x1580 [ 8913.844967][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8913.844967][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8913.844967][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8913.844967][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8913.844967][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8913.844967][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8913.844967][ T253] addrconf_dad_begin+0x310/0x670 [ 8913.844967][ T253] addrconf_dad_work+0x10b/0xab0 [ 8913.844967][ T253] process_one_work+0x84d/0x18a0 [ 8913.844967][ T253] worker_thread+0x587/0xd30 [ 8913.844967][ T253] kthread+0x28a/0x350 [ 8913.844967][ T253] ret_from_fork+0x31/0x70 [ 8913.844967][ T253] ret_from_fork_asm+0x1a/0x30 [ 8913.844967][ T253] [ 8913.847163][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8913.847163][ T253] netdev_get_by_index+0x5e/0x80 [ 8913.847163][ T253] fib6_nh_init+0x3d8/0x1580 [ 8913.847163][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8913.847163][ T253] ip6_route_add+0x1c/0x140 [ 8913.847163][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8913.847163][ T253] inet6_addr_add+0x4f8/0xa40 [ 8913.847163][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8913.847163][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8913.847163][ T253] netlink_rcv_skb+0x130/0x360 [ 8913.847163][ T253] netlink_unicast+0x449/0x710 [ 8913.847163][ T253] netlink_sendmsg+0x723/0xbe0 [ 8913.847163][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8913.847163][ T253] ___sys_sendmsg+0xee/0x170 [ 8913.847163][ T253] __sys_sendmsg+0xcd/0x170 [ 8913.847163][ T253] do_syscall_64+0xc6/0x1e0 [ 8913.847163][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8913.847163][ T253] [ 8913.849520][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8913.849520][ T253] netdev_get_by_index+0x5e/0x80 [ 8913.849520][ T253] fib6_nh_init+0x3d8/0x1580 [ 8913.849520][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8913.849520][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8913.849520][ T253] ipv6_add_addr+0x411/0x2000 [ 8913.849520][ T253] inet6_addr_add+0x30e/0xa40 [ 8913.849520][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8913.849520][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8913.849520][ T253] netlink_rcv_skb+0x130/0x360 [ 8913.849520][ T253] netlink_unicast+0x449/0x710 [ 8913.849520][ T253] netlink_sendmsg+0x723/0xbe0 [ 8913.849520][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8913.849520][ T253] ___sys_sendmsg+0xee/0x170 [ 8913.849520][ T253] __sys_sendmsg+0xcd/0x170 [ 8913.849520][ T253] do_syscall_64+0xc6/0x1e0 [ 8913.849520][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8913.849520][ T253] [ 8913.852420][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8913.852420][ T253] netdev_get_by_index+0x5e/0x80 [ 8913.852420][ T253] fib6_nh_init+0x3d8/0x1580 [ 8913.852420][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8913.852420][ T253] ip6_route_add+0x1c/0x140 [ 8913.852420][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8913.852420][ T253] addrconf_add_dev+0xe2/0x170 [ 8913.852420][ T253] inet6_addr_add+0x12f/0xa40 [ 8913.852420][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8913.852420][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8913.852420][ T253] netlink_rcv_skb+0x130/0x360 [ 8913.852420][ T253] netlink_unicast+0x449/0x710 [ 8913.852420][ T253] netlink_sendmsg+0x723/0xbe0 [ 8913.852420][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8913.852420][ T253] ___sys_sendmsg+0xee/0x170 [ 8913.852420][ T253] __sys_sendmsg+0xcd/0x170 [ 8913.852420][ T253] do_syscall_64+0xc6/0x1e0 [ 8913.852420][ T253] [ 8913.854715][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8913.854715][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8913.854715][ T253] ipv6_find_idev+0x102/0x170 [ 8913.854715][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8913.854715][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8913.854715][ T253] netlink_rcv_skb+0x130/0x360 [ 8913.854715][ T253] netlink_unicast+0x449/0x710 [ 8913.854715][ T253] netlink_sendmsg+0x723/0xbe0 [ 8913.854715][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8913.854715][ T253] ___sys_sendmsg+0xee/0x170 [ 8913.854715][ T253] __sys_sendmsg+0xcd/0x170 [ 8913.854715][ T253] do_syscall_64+0xc6/0x1e0 [ 8913.854715][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8913.854715][ T253] [ 8913.856509][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8913.856509][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8913.856509][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8913.856509][ T253] ipv6_find_idev+0x102/0x170 [ 8913.856509][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8913.856509][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8913.856509][ T253] netlink_rcv_skb+0x130/0x360 [ 8913.856509][ T253] netlink_unicast+0x449/0x710 [ 8913.856509][ T253] netlink_sendmsg+0x723/0xbe0 [ 8913.856509][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8913.856509][ T253] ___sys_sendmsg+0xee/0x170 [ 8913.856509][ T253] __sys_sendmsg+0xcd/0x170 [ 8913.856509][ T253] do_syscall_64+0xc6/0x1e0 [ 8913.856509][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8913.856509][ T253] [ 8923.986294][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8923.986709][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8923.986709][ T253] dst_init+0x84/0x4a0 [ 8923.986709][ T253] dst_alloc+0x97/0x150 [ 8923.986709][ T253] ip6_dst_alloc+0x23/0x90 [ 8923.986709][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8923.986709][ T253] ip6_pol_route+0x56f/0x840 [ 8923.986709][ T253] fib6_rule_lookup+0x334/0x630 [ 8923.986709][ T253] ip6_route_output_flags+0x259/0x480 [ 8923.986709][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8923.986709][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8923.986709][ T253] netlink_rcv_skb+0x130/0x360 [ 8923.986709][ T253] netlink_unicast+0x449/0x710 [ 8923.986709][ T253] netlink_sendmsg+0x723/0xbe0 [ 8923.986709][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8923.986709][ T253] ___sys_sendmsg+0xee/0x170 [ 8923.986709][ T253] __sys_sendmsg+0xcd/0x170 [ 8923.986709][ T253] do_syscall_64+0xc6/0x1e0 [ 8923.986709][ T253] [ 8923.988914][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8923.988914][ T253] netdev_get_by_index+0x5e/0x80 [ 8923.988914][ T253] fib6_nh_init+0x3d8/0x1580 [ 8923.988914][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8923.988914][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8923.988914][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8923.988914][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8923.988914][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8923.988914][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8923.988914][ T253] addrconf_dad_begin+0x310/0x670 [ 8923.988914][ T253] addrconf_dad_work+0x10b/0xab0 [ 8923.988914][ T253] process_one_work+0x84d/0x18a0 [ 8923.988914][ T253] worker_thread+0x587/0xd30 [ 8923.988914][ T253] kthread+0x28a/0x350 [ 8923.988914][ T253] ret_from_fork+0x31/0x70 [ 8923.988914][ T253] ret_from_fork_asm+0x1a/0x30 [ 8923.988914][ T253] [ 8923.991061][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8923.991061][ T253] netdev_get_by_index+0x5e/0x80 [ 8923.991061][ T253] fib6_nh_init+0x3d8/0x1580 [ 8923.991061][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8923.991061][ T253] ip6_route_add+0x1c/0x140 [ 8923.991061][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8923.991061][ T253] inet6_addr_add+0x4f8/0xa40 [ 8923.991061][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8923.991061][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8923.991061][ T253] netlink_rcv_skb+0x130/0x360 [ 8923.991061][ T253] netlink_unicast+0x449/0x710 [ 8923.991061][ T253] netlink_sendmsg+0x723/0xbe0 [ 8923.991061][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8923.991061][ T253] ___sys_sendmsg+0xee/0x170 [ 8923.991061][ T253] __sys_sendmsg+0xcd/0x170 [ 8923.991061][ T253] do_syscall_64+0xc6/0x1e0 [ 8923.991061][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8923.991061][ T253] [ 8923.993306][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8923.993306][ T253] netdev_get_by_index+0x5e/0x80 [ 8923.993306][ T253] fib6_nh_init+0x3d8/0x1580 [ 8923.993306][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8923.993306][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8923.993306][ T253] ipv6_add_addr+0x411/0x2000 [ 8923.993306][ T253] inet6_addr_add+0x30e/0xa40 [ 8923.993306][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8923.993306][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8923.993306][ T253] netlink_rcv_skb+0x130/0x360 [ 8923.993306][ T253] netlink_unicast+0x449/0x710 [ 8923.993306][ T253] netlink_sendmsg+0x723/0xbe0 [ 8923.993306][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8923.993306][ T253] ___sys_sendmsg+0xee/0x170 [ 8923.993306][ T253] __sys_sendmsg+0xcd/0x170 [ 8923.993306][ T253] do_syscall_64+0xc6/0x1e0 [ 8923.993306][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8923.993306][ T253] [ 8923.995549][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8923.995549][ T253] netdev_get_by_index+0x5e/0x80 [ 8923.995549][ T253] fib6_nh_init+0x3d8/0x1580 [ 8923.995549][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8923.995549][ T253] ip6_route_add+0x1c/0x140 [ 8923.995549][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8923.995549][ T253] addrconf_add_dev+0xe2/0x170 [ 8923.995549][ T253] inet6_addr_add+0x12f/0xa40 [ 8923.995549][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8923.995549][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8923.995549][ T253] netlink_rcv_skb+0x130/0x360 [ 8923.995549][ T253] netlink_unicast+0x449/0x710 [ 8923.995549][ T253] netlink_sendmsg+0x723/0xbe0 [ 8923.995549][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8923.995549][ T253] ___sys_sendmsg+0xee/0x170 [ 8923.995549][ T253] __sys_sendmsg+0xcd/0x170 [ 8923.995549][ T253] do_syscall_64+0xc6/0x1e0 [ 8923.995549][ T253] [ 8923.997754][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8923.997754][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8923.997754][ T253] ipv6_find_idev+0x102/0x170 [ 8923.997754][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8923.997754][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8923.997754][ T253] netlink_rcv_skb+0x130/0x360 [ 8923.997754][ T253] netlink_unicast+0x449/0x710 [ 8923.997754][ T253] netlink_sendmsg+0x723/0xbe0 [ 8923.997754][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8923.997754][ T253] ___sys_sendmsg+0xee/0x170 [ 8923.997754][ T253] __sys_sendmsg+0xcd/0x170 [ 8923.997754][ T253] do_syscall_64+0xc6/0x1e0 [ 8923.997754][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8923.997754][ T253] [ 8923.999486][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8923.999486][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8923.999486][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8923.999486][ T253] ipv6_find_idev+0x102/0x170 [ 8923.999486][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8923.999486][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8923.999486][ T253] netlink_rcv_skb+0x130/0x360 [ 8923.999486][ T253] netlink_unicast+0x449/0x710 [ 8923.999486][ T253] netlink_sendmsg+0x723/0xbe0 [ 8923.999486][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8923.999486][ T253] ___sys_sendmsg+0xee/0x170 [ 8923.999486][ T253] __sys_sendmsg+0xcd/0x170 [ 8923.999486][ T253] do_syscall_64+0xc6/0x1e0 [ 8923.999486][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8923.999486][ T253] [ 8934.242373][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8934.242847][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8934.242847][ T253] dst_init+0x84/0x4a0 [ 8934.242847][ T253] dst_alloc+0x97/0x150 [ 8934.242847][ T253] ip6_dst_alloc+0x23/0x90 [ 8934.242847][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8934.242847][ T253] ip6_pol_route+0x56f/0x840 [ 8934.242847][ T253] fib6_rule_lookup+0x334/0x630 [ 8934.242847][ T253] ip6_route_output_flags+0x259/0x480 [ 8934.242847][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8934.242847][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8934.242847][ T253] netlink_rcv_skb+0x130/0x360 [ 8934.242847][ T253] netlink_unicast+0x449/0x710 [ 8934.242847][ T253] netlink_sendmsg+0x723/0xbe0 [ 8934.242847][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8934.242847][ T253] ___sys_sendmsg+0xee/0x170 [ 8934.242847][ T253] __sys_sendmsg+0xcd/0x170 [ 8934.242847][ T253] do_syscall_64+0xc6/0x1e0 [ 8934.242847][ T253] [ 8934.245063][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8934.245063][ T253] netdev_get_by_index+0x5e/0x80 [ 8934.245063][ T253] fib6_nh_init+0x3d8/0x1580 [ 8934.245063][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8934.245063][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8934.245063][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8934.245063][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8934.245063][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8934.245063][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8934.245063][ T253] addrconf_dad_begin+0x310/0x670 [ 8934.245063][ T253] addrconf_dad_work+0x10b/0xab0 [ 8934.245063][ T253] process_one_work+0x84d/0x18a0 [ 8934.245063][ T253] worker_thread+0x587/0xd30 [ 8934.245063][ T253] kthread+0x28a/0x350 [ 8934.245063][ T253] ret_from_fork+0x31/0x70 [ 8934.245063][ T253] ret_from_fork_asm+0x1a/0x30 [ 8934.245063][ T253] [ 8934.247201][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8934.247201][ T253] netdev_get_by_index+0x5e/0x80 [ 8934.247201][ T253] fib6_nh_init+0x3d8/0x1580 [ 8934.247201][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8934.247201][ T253] ip6_route_add+0x1c/0x140 [ 8934.247201][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8934.247201][ T253] inet6_addr_add+0x4f8/0xa40 [ 8934.247201][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8934.247201][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8934.247201][ T253] netlink_rcv_skb+0x130/0x360 [ 8934.247201][ T253] netlink_unicast+0x449/0x710 [ 8934.247201][ T253] netlink_sendmsg+0x723/0xbe0 [ 8934.247201][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8934.247201][ T253] ___sys_sendmsg+0xee/0x170 [ 8934.247201][ T253] __sys_sendmsg+0xcd/0x170 [ 8934.247201][ T253] do_syscall_64+0xc6/0x1e0 [ 8934.247201][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8934.247201][ T253] [ 8934.249453][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8934.249453][ T253] netdev_get_by_index+0x5e/0x80 [ 8934.249453][ T253] fib6_nh_init+0x3d8/0x1580 [ 8934.249453][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8934.249453][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8934.249453][ T253] ipv6_add_addr+0x411/0x2000 [ 8934.249453][ T253] inet6_addr_add+0x30e/0xa40 [ 8934.249453][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8934.249453][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8934.249453][ T253] netlink_rcv_skb+0x130/0x360 [ 8934.249453][ T253] netlink_unicast+0x449/0x710 [ 8934.249453][ T253] netlink_sendmsg+0x723/0xbe0 [ 8934.249453][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8934.249453][ T253] ___sys_sendmsg+0xee/0x170 [ 8934.249453][ T253] __sys_sendmsg+0xcd/0x170 [ 8934.249453][ T253] do_syscall_64+0xc6/0x1e0 [ 8934.249453][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8934.249453][ T253] [ 8934.251692][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8934.251692][ T253] netdev_get_by_index+0x5e/0x80 [ 8934.251692][ T253] fib6_nh_init+0x3d8/0x1580 [ 8934.251692][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8934.251692][ T253] ip6_route_add+0x1c/0x140 [ 8934.251692][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8934.251692][ T253] addrconf_add_dev+0xe2/0x170 [ 8934.251692][ T253] inet6_addr_add+0x12f/0xa40 [ 8934.251692][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8934.251692][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8934.251692][ T253] netlink_rcv_skb+0x130/0x360 [ 8934.251692][ T253] netlink_unicast+0x449/0x710 [ 8934.251692][ T253] netlink_sendmsg+0x723/0xbe0 [ 8934.251692][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8934.251692][ T253] ___sys_sendmsg+0xee/0x170 [ 8934.251692][ T253] __sys_sendmsg+0xcd/0x170 [ 8934.251692][ T253] do_syscall_64+0xc6/0x1e0 [ 8934.251692][ T253] [ 8934.253887][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8934.253887][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8934.253887][ T253] ipv6_find_idev+0x102/0x170 [ 8934.253887][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8934.253887][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8934.253887][ T253] netlink_rcv_skb+0x130/0x360 [ 8934.253887][ T253] netlink_unicast+0x449/0x710 [ 8934.253887][ T253] netlink_sendmsg+0x723/0xbe0 [ 8934.253887][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8934.253887][ T253] ___sys_sendmsg+0xee/0x170 [ 8934.253887][ T253] __sys_sendmsg+0xcd/0x170 [ 8934.253887][ T253] do_syscall_64+0xc6/0x1e0 [ 8934.253887][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8934.253887][ T253] [ 8934.255649][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8934.255649][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8934.255649][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8934.255649][ T253] ipv6_find_idev+0x102/0x170 [ 8934.255649][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8934.255649][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8934.255649][ T253] netlink_rcv_skb+0x130/0x360 [ 8934.255649][ T253] netlink_unicast+0x449/0x710 [ 8934.255649][ T253] netlink_sendmsg+0x723/0xbe0 [ 8934.255649][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8934.255649][ T253] ___sys_sendmsg+0xee/0x170 [ 8934.255649][ T253] __sys_sendmsg+0xcd/0x170 [ 8934.255649][ T253] do_syscall_64+0xc6/0x1e0 [ 8934.255649][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8934.255649][ T253] [ 8944.498323][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8944.498826][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8944.498826][ T253] dst_init+0x84/0x4a0 [ 8944.498826][ T253] dst_alloc+0x97/0x150 [ 8944.498826][ T253] ip6_dst_alloc+0x23/0x90 [ 8944.498826][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8944.498826][ T253] ip6_pol_route+0x56f/0x840 [ 8944.498826][ T253] fib6_rule_lookup+0x334/0x630 [ 8944.498826][ T253] ip6_route_output_flags+0x259/0x480 [ 8944.498826][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8944.498826][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8944.498826][ T253] netlink_rcv_skb+0x130/0x360 [ 8944.498826][ T253] netlink_unicast+0x449/0x710 [ 8944.498826][ T253] netlink_sendmsg+0x723/0xbe0 [ 8944.498826][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8944.498826][ T253] ___sys_sendmsg+0xee/0x170 [ 8944.498826][ T253] __sys_sendmsg+0xcd/0x170 [ 8944.498826][ T253] do_syscall_64+0xc6/0x1e0 [ 8944.498826][ T253] [ 8944.501015][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8944.501015][ T253] netdev_get_by_index+0x5e/0x80 [ 8944.501015][ T253] fib6_nh_init+0x3d8/0x1580 [ 8944.501015][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8944.501015][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8944.501015][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8944.501015][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8944.501015][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8944.501015][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8944.501015][ T253] addrconf_dad_begin+0x310/0x670 [ 8944.501015][ T253] addrconf_dad_work+0x10b/0xab0 [ 8944.501015][ T253] process_one_work+0x84d/0x18a0 [ 8944.501015][ T253] worker_thread+0x587/0xd30 [ 8944.501015][ T253] kthread+0x28a/0x350 [ 8944.501015][ T253] ret_from_fork+0x31/0x70 [ 8944.501015][ T253] ret_from_fork_asm+0x1a/0x30 [ 8944.501015][ T253] [ 8944.503155][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8944.503155][ T253] netdev_get_by_index+0x5e/0x80 [ 8944.503155][ T253] fib6_nh_init+0x3d8/0x1580 [ 8944.503155][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8944.503155][ T253] ip6_route_add+0x1c/0x140 [ 8944.503155][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8944.503155][ T253] inet6_addr_add+0x4f8/0xa40 [ 8944.503155][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8944.503155][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8944.503155][ T253] netlink_rcv_skb+0x130/0x360 [ 8944.503155][ T253] netlink_unicast+0x449/0x710 [ 8944.503155][ T253] netlink_sendmsg+0x723/0xbe0 [ 8944.503155][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8944.503155][ T253] ___sys_sendmsg+0xee/0x170 [ 8944.503155][ T253] __sys_sendmsg+0xcd/0x170 [ 8944.503155][ T253] do_syscall_64+0xc6/0x1e0 [ 8944.503155][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8944.503155][ T253] [ 8944.505383][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8944.505383][ T253] netdev_get_by_index+0x5e/0x80 [ 8944.505383][ T253] fib6_nh_init+0x3d8/0x1580 [ 8944.505383][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8944.505383][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8944.505383][ T253] ipv6_add_addr+0x411/0x2000 [ 8944.505383][ T253] inet6_addr_add+0x30e/0xa40 [ 8944.505383][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8944.505383][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8944.505383][ T253] netlink_rcv_skb+0x130/0x360 [ 8944.505383][ T253] netlink_unicast+0x449/0x710 [ 8944.505383][ T253] netlink_sendmsg+0x723/0xbe0 [ 8944.505383][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8944.505383][ T253] ___sys_sendmsg+0xee/0x170 [ 8944.505383][ T253] __sys_sendmsg+0xcd/0x170 [ 8944.505383][ T253] do_syscall_64+0xc6/0x1e0 [ 8944.505383][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8944.505383][ T253] [ 8944.507616][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8944.507616][ T253] netdev_get_by_index+0x5e/0x80 [ 8944.507616][ T253] fib6_nh_init+0x3d8/0x1580 [ 8944.507616][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8944.507616][ T253] ip6_route_add+0x1c/0x140 [ 8944.507616][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8944.507616][ T253] addrconf_add_dev+0xe2/0x170 [ 8944.507616][ T253] inet6_addr_add+0x12f/0xa40 [ 8944.507616][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8944.507616][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8944.507616][ T253] netlink_rcv_skb+0x130/0x360 [ 8944.507616][ T253] netlink_unicast+0x449/0x710 [ 8944.507616][ T253] netlink_sendmsg+0x723/0xbe0 [ 8944.507616][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8944.507616][ T253] ___sys_sendmsg+0xee/0x170 [ 8944.507616][ T253] __sys_sendmsg+0xcd/0x170 [ 8944.507616][ T253] do_syscall_64+0xc6/0x1e0 [ 8944.507616][ T253] [ 8944.509811][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8944.509811][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8944.509811][ T253] ipv6_find_idev+0x102/0x170 [ 8944.509811][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8944.509811][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8944.509811][ T253] netlink_rcv_skb+0x130/0x360 [ 8944.509811][ T253] netlink_unicast+0x449/0x710 [ 8944.509811][ T253] netlink_sendmsg+0x723/0xbe0 [ 8944.509811][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8944.509811][ T253] ___sys_sendmsg+0xee/0x170 [ 8944.509811][ T253] __sys_sendmsg+0xcd/0x170 [ 8944.509811][ T253] do_syscall_64+0xc6/0x1e0 [ 8944.509811][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8944.509811][ T253] [ 8944.511526][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8944.511526][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8944.511526][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8944.511526][ T253] ipv6_find_idev+0x102/0x170 [ 8944.511526][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8944.511526][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8944.511526][ T253] netlink_rcv_skb+0x130/0x360 [ 8944.511526][ T253] netlink_unicast+0x449/0x710 [ 8944.511526][ T253] netlink_sendmsg+0x723/0xbe0 [ 8944.511526][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8944.511526][ T253] ___sys_sendmsg+0xee/0x170 [ 8944.511526][ T253] __sys_sendmsg+0xcd/0x170 [ 8944.511526][ T253] do_syscall_64+0xc6/0x1e0 [ 8944.511526][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8944.511526][ T253] [ 8954.754297][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8954.754773][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8954.754773][ T253] dst_init+0x84/0x4a0 [ 8954.754773][ T253] dst_alloc+0x97/0x150 [ 8954.754773][ T253] ip6_dst_alloc+0x23/0x90 [ 8954.754773][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8954.754773][ T253] ip6_pol_route+0x56f/0x840 [ 8954.754773][ T253] fib6_rule_lookup+0x334/0x630 [ 8954.754773][ T253] ip6_route_output_flags+0x259/0x480 [ 8954.754773][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8954.754773][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8954.754773][ T253] netlink_rcv_skb+0x130/0x360 [ 8954.754773][ T253] netlink_unicast+0x449/0x710 [ 8954.754773][ T253] netlink_sendmsg+0x723/0xbe0 [ 8954.754773][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8954.754773][ T253] ___sys_sendmsg+0xee/0x170 [ 8954.754773][ T253] __sys_sendmsg+0xcd/0x170 [ 8954.754773][ T253] do_syscall_64+0xc6/0x1e0 [ 8954.754773][ T253] [ 8954.756961][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8954.756961][ T253] netdev_get_by_index+0x5e/0x80 [ 8954.756961][ T253] fib6_nh_init+0x3d8/0x1580 [ 8954.756961][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8954.756961][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8954.756961][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8954.756961][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8954.756961][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8954.756961][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8954.756961][ T253] addrconf_dad_begin+0x310/0x670 [ 8954.756961][ T253] addrconf_dad_work+0x10b/0xab0 [ 8954.756961][ T253] process_one_work+0x84d/0x18a0 [ 8954.756961][ T253] worker_thread+0x587/0xd30 [ 8954.756961][ T253] kthread+0x28a/0x350 [ 8954.756961][ T253] ret_from_fork+0x31/0x70 [ 8954.756961][ T253] ret_from_fork_asm+0x1a/0x30 [ 8954.756961][ T253] [ 8954.759124][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8954.759124][ T253] netdev_get_by_index+0x5e/0x80 [ 8954.759124][ T253] fib6_nh_init+0x3d8/0x1580 [ 8954.759124][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8954.759124][ T253] ip6_route_add+0x1c/0x140 [ 8954.759124][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8954.759124][ T253] inet6_addr_add+0x4f8/0xa40 [ 8954.759124][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8954.759124][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8954.759124][ T253] netlink_rcv_skb+0x130/0x360 [ 8954.759124][ T253] netlink_unicast+0x449/0x710 [ 8954.759124][ T253] netlink_sendmsg+0x723/0xbe0 [ 8954.759124][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8954.759124][ T253] ___sys_sendmsg+0xee/0x170 [ 8954.759124][ T253] __sys_sendmsg+0xcd/0x170 [ 8954.759124][ T253] do_syscall_64+0xc6/0x1e0 [ 8954.759124][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8954.759124][ T253] [ 8954.761357][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8954.761357][ T253] netdev_get_by_index+0x5e/0x80 [ 8954.761357][ T253] fib6_nh_init+0x3d8/0x1580 [ 8954.761357][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8954.761357][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8954.761357][ T253] ipv6_add_addr+0x411/0x2000 [ 8954.761357][ T253] inet6_addr_add+0x30e/0xa40 [ 8954.761357][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8954.761357][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8954.761357][ T253] netlink_rcv_skb+0x130/0x360 [ 8954.761357][ T253] netlink_unicast+0x449/0x710 [ 8954.761357][ T253] netlink_sendmsg+0x723/0xbe0 [ 8954.761357][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8954.761357][ T253] ___sys_sendmsg+0xee/0x170 [ 8954.761357][ T253] __sys_sendmsg+0xcd/0x170 [ 8954.761357][ T253] do_syscall_64+0xc6/0x1e0 [ 8954.761357][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8954.761357][ T253] [ 8954.763586][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8954.763586][ T253] netdev_get_by_index+0x5e/0x80 [ 8954.763586][ T253] fib6_nh_init+0x3d8/0x1580 [ 8954.763586][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8954.763586][ T253] ip6_route_add+0x1c/0x140 [ 8954.763586][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8954.763586][ T253] addrconf_add_dev+0xe2/0x170 [ 8954.763586][ T253] inet6_addr_add+0x12f/0xa40 [ 8954.763586][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8954.763586][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8954.763586][ T253] netlink_rcv_skb+0x130/0x360 [ 8954.763586][ T253] netlink_unicast+0x449/0x710 [ 8954.763586][ T253] netlink_sendmsg+0x723/0xbe0 [ 8954.763586][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8954.763586][ T253] ___sys_sendmsg+0xee/0x170 [ 8954.763586][ T253] __sys_sendmsg+0xcd/0x170 [ 8954.763586][ T253] do_syscall_64+0xc6/0x1e0 [ 8954.763586][ T253] [ 8954.765778][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8954.765778][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8954.765778][ T253] ipv6_find_idev+0x102/0x170 [ 8954.765778][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8954.765778][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8954.765778][ T253] netlink_rcv_skb+0x130/0x360 [ 8954.765778][ T253] netlink_unicast+0x449/0x710 [ 8954.765778][ T253] netlink_sendmsg+0x723/0xbe0 [ 8954.765778][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8954.765778][ T253] ___sys_sendmsg+0xee/0x170 [ 8954.765778][ T253] __sys_sendmsg+0xcd/0x170 [ 8954.765778][ T253] do_syscall_64+0xc6/0x1e0 [ 8954.765778][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8954.765778][ T253] [ 8954.767498][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8954.767498][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8954.767498][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8954.767498][ T253] ipv6_find_idev+0x102/0x170 [ 8954.767498][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8954.767498][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8954.767498][ T253] netlink_rcv_skb+0x130/0x360 [ 8954.767498][ T253] netlink_unicast+0x449/0x710 [ 8954.767498][ T253] netlink_sendmsg+0x723/0xbe0 [ 8954.767498][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8954.767498][ T253] ___sys_sendmsg+0xee/0x170 [ 8954.767498][ T253] __sys_sendmsg+0xcd/0x170 [ 8954.767498][ T253] do_syscall_64+0xc6/0x1e0 [ 8954.767498][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8954.767498][ T253] [ 8964.866322][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8964.866806][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8964.866806][ T253] dst_init+0x84/0x4a0 [ 8964.866806][ T253] dst_alloc+0x97/0x150 [ 8964.866806][ T253] ip6_dst_alloc+0x23/0x90 [ 8964.866806][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8964.866806][ T253] ip6_pol_route+0x56f/0x840 [ 8964.866806][ T253] fib6_rule_lookup+0x334/0x630 [ 8964.866806][ T253] ip6_route_output_flags+0x259/0x480 [ 8964.866806][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8964.866806][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8964.866806][ T253] netlink_rcv_skb+0x130/0x360 [ 8964.866806][ T253] netlink_unicast+0x449/0x710 [ 8964.866806][ T253] netlink_sendmsg+0x723/0xbe0 [ 8964.866806][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8964.866806][ T253] ___sys_sendmsg+0xee/0x170 [ 8964.866806][ T253] __sys_sendmsg+0xcd/0x170 [ 8964.866806][ T253] do_syscall_64+0xc6/0x1e0 [ 8964.866806][ T253] [ 8964.869014][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8964.869014][ T253] netdev_get_by_index+0x5e/0x80 [ 8964.869014][ T253] fib6_nh_init+0x3d8/0x1580 [ 8964.869014][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8964.869014][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8964.869014][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8964.869014][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8964.869014][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8964.869014][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8964.869014][ T253] addrconf_dad_begin+0x310/0x670 [ 8964.869014][ T253] addrconf_dad_work+0x10b/0xab0 [ 8964.869014][ T253] process_one_work+0x84d/0x18a0 [ 8964.869014][ T253] worker_thread+0x587/0xd30 [ 8964.869014][ T253] kthread+0x28a/0x350 [ 8964.869014][ T253] ret_from_fork+0x31/0x70 [ 8964.869014][ T253] ret_from_fork_asm+0x1a/0x30 [ 8964.869014][ T253] [ 8964.871157][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8964.871157][ T253] netdev_get_by_index+0x5e/0x80 [ 8964.871157][ T253] fib6_nh_init+0x3d8/0x1580 [ 8964.871157][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8964.871157][ T253] ip6_route_add+0x1c/0x140 [ 8964.871157][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8964.871157][ T253] inet6_addr_add+0x4f8/0xa40 [ 8964.871157][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8964.871157][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8964.871157][ T253] netlink_rcv_skb+0x130/0x360 [ 8964.871157][ T253] netlink_unicast+0x449/0x710 [ 8964.871157][ T253] netlink_sendmsg+0x723/0xbe0 [ 8964.871157][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8964.871157][ T253] ___sys_sendmsg+0xee/0x170 [ 8964.871157][ T253] __sys_sendmsg+0xcd/0x170 [ 8964.871157][ T253] do_syscall_64+0xc6/0x1e0 [ 8964.871157][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8964.871157][ T253] [ 8964.873408][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8964.873408][ T253] netdev_get_by_index+0x5e/0x80 [ 8964.873408][ T253] fib6_nh_init+0x3d8/0x1580 [ 8964.873408][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8964.873408][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8964.873408][ T253] ipv6_add_addr+0x411/0x2000 [ 8964.873408][ T253] inet6_addr_add+0x30e/0xa40 [ 8964.873408][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8964.873408][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8964.873408][ T253] netlink_rcv_skb+0x130/0x360 [ 8964.873408][ T253] netlink_unicast+0x449/0x710 [ 8964.873408][ T253] netlink_sendmsg+0x723/0xbe0 [ 8964.873408][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8964.873408][ T253] ___sys_sendmsg+0xee/0x170 [ 8964.873408][ T253] __sys_sendmsg+0xcd/0x170 [ 8964.873408][ T253] do_syscall_64+0xc6/0x1e0 [ 8964.873408][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8964.873408][ T253] [ 8964.875637][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8964.875637][ T253] netdev_get_by_index+0x5e/0x80 [ 8964.875637][ T253] fib6_nh_init+0x3d8/0x1580 [ 8964.875637][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8964.875637][ T253] ip6_route_add+0x1c/0x140 [ 8964.875637][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8964.875637][ T253] addrconf_add_dev+0xe2/0x170 [ 8964.875637][ T253] inet6_addr_add+0x12f/0xa40 [ 8964.875637][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8964.875637][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8964.875637][ T253] netlink_rcv_skb+0x130/0x360 [ 8964.875637][ T253] netlink_unicast+0x449/0x710 [ 8964.875637][ T253] netlink_sendmsg+0x723/0xbe0 [ 8964.875637][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8964.875637][ T253] ___sys_sendmsg+0xee/0x170 [ 8964.875637][ T253] __sys_sendmsg+0xcd/0x170 [ 8964.875637][ T253] do_syscall_64+0xc6/0x1e0 [ 8964.875637][ T253] [ 8964.877829][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8964.877829][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8964.877829][ T253] ipv6_find_idev+0x102/0x170 [ 8964.877829][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8964.877829][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8964.877829][ T253] netlink_rcv_skb+0x130/0x360 [ 8964.877829][ T253] netlink_unicast+0x449/0x710 [ 8964.877829][ T253] netlink_sendmsg+0x723/0xbe0 [ 8964.877829][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8964.877829][ T253] ___sys_sendmsg+0xee/0x170 [ 8964.877829][ T253] __sys_sendmsg+0xcd/0x170 [ 8964.877829][ T253] do_syscall_64+0xc6/0x1e0 [ 8964.877829][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8964.877829][ T253] [ 8964.879565][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8964.879565][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8964.879565][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8964.879565][ T253] ipv6_find_idev+0x102/0x170 [ 8964.879565][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8964.879565][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8964.879565][ T253] netlink_rcv_skb+0x130/0x360 [ 8964.879565][ T253] netlink_unicast+0x449/0x710 [ 8964.879565][ T253] netlink_sendmsg+0x723/0xbe0 [ 8964.879565][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8964.879565][ T253] ___sys_sendmsg+0xee/0x170 [ 8964.879565][ T253] __sys_sendmsg+0xcd/0x170 [ 8964.879565][ T253] do_syscall_64+0xc6/0x1e0 [ 8964.879565][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8964.879565][ T253] [ 8975.098317][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8975.098837][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8975.098837][ T253] dst_init+0x84/0x4a0 [ 8975.098837][ T253] dst_alloc+0x97/0x150 [ 8975.098837][ T253] ip6_dst_alloc+0x23/0x90 [ 8975.098837][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8975.098837][ T253] ip6_pol_route+0x56f/0x840 [ 8975.098837][ T253] fib6_rule_lookup+0x334/0x630 [ 8975.098837][ T253] ip6_route_output_flags+0x259/0x480 [ 8975.098837][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8975.098837][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8975.098837][ T253] netlink_rcv_skb+0x130/0x360 [ 8975.098837][ T253] netlink_unicast+0x449/0x710 [ 8975.098837][ T253] netlink_sendmsg+0x723/0xbe0 [ 8975.098837][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8975.098837][ T253] ___sys_sendmsg+0xee/0x170 [ 8975.098837][ T253] __sys_sendmsg+0xcd/0x170 [ 8975.098837][ T253] do_syscall_64+0xc6/0x1e0 [ 8975.098837][ T253] [ 8975.101032][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8975.101032][ T253] netdev_get_by_index+0x5e/0x80 [ 8975.101032][ T253] fib6_nh_init+0x3d8/0x1580 [ 8975.101032][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8975.101032][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8975.101032][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8975.101032][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8975.101032][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8975.101032][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8975.101032][ T253] addrconf_dad_begin+0x310/0x670 [ 8975.101032][ T253] addrconf_dad_work+0x10b/0xab0 [ 8975.101032][ T253] process_one_work+0x84d/0x18a0 [ 8975.101032][ T253] worker_thread+0x587/0xd30 [ 8975.101032][ T253] kthread+0x28a/0x350 [ 8975.101032][ T253] ret_from_fork+0x31/0x70 [ 8975.101032][ T253] ret_from_fork_asm+0x1a/0x30 [ 8975.101032][ T253] [ 8975.103171][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8975.103171][ T253] netdev_get_by_index+0x5e/0x80 [ 8975.103171][ T253] fib6_nh_init+0x3d8/0x1580 [ 8975.103171][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8975.103171][ T253] ip6_route_add+0x1c/0x140 [ 8975.103171][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8975.103171][ T253] inet6_addr_add+0x4f8/0xa40 [ 8975.103171][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8975.103171][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8975.103171][ T253] netlink_rcv_skb+0x130/0x360 [ 8975.103171][ T253] netlink_unicast+0x449/0x710 [ 8975.103171][ T253] netlink_sendmsg+0x723/0xbe0 [ 8975.103171][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8975.103171][ T253] ___sys_sendmsg+0xee/0x170 [ 8975.103171][ T253] __sys_sendmsg+0xcd/0x170 [ 8975.103171][ T253] do_syscall_64+0xc6/0x1e0 [ 8975.103171][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8975.103171][ T253] [ 8975.105411][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8975.105411][ T253] netdev_get_by_index+0x5e/0x80 [ 8975.105411][ T253] fib6_nh_init+0x3d8/0x1580 [ 8975.105411][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8975.105411][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8975.105411][ T253] ipv6_add_addr+0x411/0x2000 [ 8975.105411][ T253] inet6_addr_add+0x30e/0xa40 [ 8975.105411][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8975.105411][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8975.105411][ T253] netlink_rcv_skb+0x130/0x360 [ 8975.105411][ T253] netlink_unicast+0x449/0x710 [ 8975.105411][ T253] netlink_sendmsg+0x723/0xbe0 [ 8975.105411][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8975.105411][ T253] ___sys_sendmsg+0xee/0x170 [ 8975.105411][ T253] __sys_sendmsg+0xcd/0x170 [ 8975.105411][ T253] do_syscall_64+0xc6/0x1e0 [ 8975.105411][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8975.105411][ T253] [ 8975.107661][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8975.107661][ T253] netdev_get_by_index+0x5e/0x80 [ 8975.107661][ T253] fib6_nh_init+0x3d8/0x1580 [ 8975.107661][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8975.107661][ T253] ip6_route_add+0x1c/0x140 [ 8975.107661][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8975.107661][ T253] addrconf_add_dev+0xe2/0x170 [ 8975.107661][ T253] inet6_addr_add+0x12f/0xa40 [ 8975.107661][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8975.107661][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8975.107661][ T253] netlink_rcv_skb+0x130/0x360 [ 8975.107661][ T253] netlink_unicast+0x449/0x710 [ 8975.107661][ T253] netlink_sendmsg+0x723/0xbe0 [ 8975.107661][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8975.107661][ T253] ___sys_sendmsg+0xee/0x170 [ 8975.107661][ T253] __sys_sendmsg+0xcd/0x170 [ 8975.107661][ T253] do_syscall_64+0xc6/0x1e0 [ 8975.107661][ T253] [ 8975.109869][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8975.109869][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8975.109869][ T253] ipv6_find_idev+0x102/0x170 [ 8975.109869][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8975.109869][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8975.109869][ T253] netlink_rcv_skb+0x130/0x360 [ 8975.109869][ T253] netlink_unicast+0x449/0x710 [ 8975.109869][ T253] netlink_sendmsg+0x723/0xbe0 [ 8975.109869][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8975.109869][ T253] ___sys_sendmsg+0xee/0x170 [ 8975.109869][ T253] __sys_sendmsg+0xcd/0x170 [ 8975.109869][ T253] do_syscall_64+0xc6/0x1e0 [ 8975.109869][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8975.109869][ T253] [ 8975.111593][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8975.111593][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8975.111593][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8975.111593][ T253] ipv6_find_idev+0x102/0x170 [ 8975.111593][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8975.111593][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8975.111593][ T253] netlink_rcv_skb+0x130/0x360 [ 8975.111593][ T253] netlink_unicast+0x449/0x710 [ 8975.111593][ T253] netlink_sendmsg+0x723/0xbe0 [ 8975.111593][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8975.111593][ T253] ___sys_sendmsg+0xee/0x170 [ 8975.111593][ T253] __sys_sendmsg+0xcd/0x170 [ 8975.111593][ T253] do_syscall_64+0xc6/0x1e0 [ 8975.111593][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8975.111593][ T253] [ 8985.170249][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8985.170725][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8985.170725][ T253] dst_init+0x84/0x4a0 [ 8985.170725][ T253] dst_alloc+0x97/0x150 [ 8985.170725][ T253] ip6_dst_alloc+0x23/0x90 [ 8985.170725][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8985.170725][ T253] ip6_pol_route+0x56f/0x840 [ 8985.170725][ T253] fib6_rule_lookup+0x334/0x630 [ 8985.170725][ T253] ip6_route_output_flags+0x259/0x480 [ 8985.170725][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8985.170725][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8985.170725][ T253] netlink_rcv_skb+0x130/0x360 [ 8985.170725][ T253] netlink_unicast+0x449/0x710 [ 8985.170725][ T253] netlink_sendmsg+0x723/0xbe0 [ 8985.170725][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8985.170725][ T253] ___sys_sendmsg+0xee/0x170 [ 8985.170725][ T253] __sys_sendmsg+0xcd/0x170 [ 8985.170725][ T253] do_syscall_64+0xc6/0x1e0 [ 8985.170725][ T253] [ 8985.172909][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8985.172909][ T253] netdev_get_by_index+0x5e/0x80 [ 8985.172909][ T253] fib6_nh_init+0x3d8/0x1580 [ 8985.172909][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8985.172909][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8985.172909][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8985.172909][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8985.172909][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8985.172909][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8985.172909][ T253] addrconf_dad_begin+0x310/0x670 [ 8985.172909][ T253] addrconf_dad_work+0x10b/0xab0 [ 8985.172909][ T253] process_one_work+0x84d/0x18a0 [ 8985.172909][ T253] worker_thread+0x587/0xd30 [ 8985.172909][ T253] kthread+0x28a/0x350 [ 8985.172909][ T253] ret_from_fork+0x31/0x70 [ 8985.172909][ T253] ret_from_fork_asm+0x1a/0x30 [ 8985.172909][ T253] [ 8985.175058][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8985.175058][ T253] netdev_get_by_index+0x5e/0x80 [ 8985.175058][ T253] fib6_nh_init+0x3d8/0x1580 [ 8985.175058][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8985.175058][ T253] ip6_route_add+0x1c/0x140 [ 8985.175058][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8985.175058][ T253] inet6_addr_add+0x4f8/0xa40 [ 8985.175058][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8985.175058][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8985.175058][ T253] netlink_rcv_skb+0x130/0x360 [ 8985.175058][ T253] netlink_unicast+0x449/0x710 [ 8985.175058][ T253] netlink_sendmsg+0x723/0xbe0 [ 8985.175058][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8985.175058][ T253] ___sys_sendmsg+0xee/0x170 [ 8985.175058][ T253] __sys_sendmsg+0xcd/0x170 [ 8985.175058][ T253] do_syscall_64+0xc6/0x1e0 [ 8985.175058][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8985.175058][ T253] [ 8985.177292][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8985.177292][ T253] netdev_get_by_index+0x5e/0x80 [ 8985.177292][ T253] fib6_nh_init+0x3d8/0x1580 [ 8985.177292][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8985.177292][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8985.177292][ T253] ipv6_add_addr+0x411/0x2000 [ 8985.177292][ T253] inet6_addr_add+0x30e/0xa40 [ 8985.177292][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8985.177292][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8985.177292][ T253] netlink_rcv_skb+0x130/0x360 [ 8985.177292][ T253] netlink_unicast+0x449/0x710 [ 8985.177292][ T253] netlink_sendmsg+0x723/0xbe0 [ 8985.177292][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8985.177292][ T253] ___sys_sendmsg+0xee/0x170 [ 8985.177292][ T253] __sys_sendmsg+0xcd/0x170 [ 8985.177292][ T253] do_syscall_64+0xc6/0x1e0 [ 8985.177292][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8985.177292][ T253] [ 8985.179547][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8985.179547][ T253] netdev_get_by_index+0x5e/0x80 [ 8985.179547][ T253] fib6_nh_init+0x3d8/0x1580 [ 8985.179547][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8985.179547][ T253] ip6_route_add+0x1c/0x140 [ 8985.179547][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8985.179547][ T253] addrconf_add_dev+0xe2/0x170 [ 8985.179547][ T253] inet6_addr_add+0x12f/0xa40 [ 8985.179547][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8985.179547][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8985.179547][ T253] netlink_rcv_skb+0x130/0x360 [ 8985.179547][ T253] netlink_unicast+0x449/0x710 [ 8985.179547][ T253] netlink_sendmsg+0x723/0xbe0 [ 8985.179547][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8985.179547][ T253] ___sys_sendmsg+0xee/0x170 [ 8985.179547][ T253] __sys_sendmsg+0xcd/0x170 [ 8985.179547][ T253] do_syscall_64+0xc6/0x1e0 [ 8985.179547][ T253] [ 8985.181741][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8985.181741][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8985.181741][ T253] ipv6_find_idev+0x102/0x170 [ 8985.181741][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8985.181741][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8985.181741][ T253] netlink_rcv_skb+0x130/0x360 [ 8985.181741][ T253] netlink_unicast+0x449/0x710 [ 8985.181741][ T253] netlink_sendmsg+0x723/0xbe0 [ 8985.181741][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8985.181741][ T253] ___sys_sendmsg+0xee/0x170 [ 8985.181741][ T253] __sys_sendmsg+0xcd/0x170 [ 8985.181741][ T253] do_syscall_64+0xc6/0x1e0 [ 8985.181741][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8985.181741][ T253] [ 8985.183464][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8985.183464][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8985.183464][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8985.183464][ T253] ipv6_find_idev+0x102/0x170 [ 8985.183464][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8985.183464][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8985.183464][ T253] netlink_rcv_skb+0x130/0x360 [ 8985.183464][ T253] netlink_unicast+0x449/0x710 [ 8985.183464][ T253] netlink_sendmsg+0x723/0xbe0 [ 8985.183464][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8985.183464][ T253] ___sys_sendmsg+0xee/0x170 [ 8985.183464][ T253] __sys_sendmsg+0xcd/0x170 [ 8985.183464][ T253] do_syscall_64+0xc6/0x1e0 [ 8985.183464][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8985.183464][ T253] [ 8995.842358][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8995.842833][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8995.842833][ T253] dst_init+0x84/0x4a0 [ 8995.842833][ T253] dst_alloc+0x97/0x150 [ 8995.842833][ T253] ip6_dst_alloc+0x23/0x90 [ 8995.842833][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8995.842833][ T253] ip6_pol_route+0x56f/0x840 [ 8995.842833][ T253] fib6_rule_lookup+0x334/0x630 [ 8995.842833][ T253] ip6_route_output_flags+0x259/0x480 [ 8995.842833][ T253] inet6_rtm_getroute+0x980/0xf70 [ 8995.842833][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 8995.842833][ T253] netlink_rcv_skb+0x130/0x360 [ 8995.842833][ T253] netlink_unicast+0x449/0x710 [ 8995.842833][ T253] netlink_sendmsg+0x723/0xbe0 [ 8995.842833][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8995.842833][ T253] ___sys_sendmsg+0xee/0x170 [ 8995.842833][ T253] __sys_sendmsg+0xcd/0x170 [ 8995.842833][ T253] do_syscall_64+0xc6/0x1e0 [ 8995.842833][ T253] [ 8995.845023][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8995.845023][ T253] netdev_get_by_index+0x5e/0x80 [ 8995.845023][ T253] fib6_nh_init+0x3d8/0x1580 [ 8995.845023][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8995.845023][ T253] addrconf_f6i_alloc+0x265/0x560 [ 8995.845023][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8995.845023][ T253] addrconf_join_anycast+0x1c0/0x220 [ 8995.845023][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8995.845023][ T253] addrconf_dad_completed+0x12b/0xe20 [ 8995.845023][ T253] addrconf_dad_begin+0x310/0x670 [ 8995.845023][ T253] addrconf_dad_work+0x10b/0xab0 [ 8995.845023][ T253] process_one_work+0x84d/0x18a0 [ 8995.845023][ T253] worker_thread+0x587/0xd30 [ 8995.845023][ T253] kthread+0x28a/0x350 [ 8995.845023][ T253] ret_from_fork+0x31/0x70 [ 8995.845023][ T253] ret_from_fork_asm+0x1a/0x30 [ 8995.845023][ T253] [ 8995.847161][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8995.847161][ T253] netdev_get_by_index+0x5e/0x80 [ 8995.847161][ T253] fib6_nh_init+0x3d8/0x1580 [ 8995.847161][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8995.847161][ T253] ip6_route_add+0x1c/0x140 [ 8995.847161][ T253] addrconf_prefix_route+0x2a6/0x430 [ 8995.847161][ T253] inet6_addr_add+0x4f8/0xa40 [ 8995.847161][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8995.847161][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8995.847161][ T253] netlink_rcv_skb+0x130/0x360 [ 8995.847161][ T253] netlink_unicast+0x449/0x710 [ 8995.847161][ T253] netlink_sendmsg+0x723/0xbe0 [ 8995.847161][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8995.847161][ T253] ___sys_sendmsg+0xee/0x170 [ 8995.847161][ T253] __sys_sendmsg+0xcd/0x170 [ 8995.847161][ T253] do_syscall_64+0xc6/0x1e0 [ 8995.847161][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8995.847161][ T253] [ 8995.849414][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8995.849414][ T253] netdev_get_by_index+0x5e/0x80 [ 8995.849414][ T253] fib6_nh_init+0x3d8/0x1580 [ 8995.849414][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8995.849414][ T253] addrconf_f6i_alloc+0x315/0x560 [ 8995.849414][ T253] ipv6_add_addr+0x411/0x2000 [ 8995.849414][ T253] inet6_addr_add+0x30e/0xa40 [ 8995.849414][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8995.849414][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8995.849414][ T253] netlink_rcv_skb+0x130/0x360 [ 8995.849414][ T253] netlink_unicast+0x449/0x710 [ 8995.849414][ T253] netlink_sendmsg+0x723/0xbe0 [ 8995.849414][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8995.849414][ T253] ___sys_sendmsg+0xee/0x170 [ 8995.849414][ T253] __sys_sendmsg+0xcd/0x170 [ 8995.849414][ T253] do_syscall_64+0xc6/0x1e0 [ 8995.849414][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8995.849414][ T253] [ 8995.851652][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8995.851652][ T253] netdev_get_by_index+0x5e/0x80 [ 8995.851652][ T253] fib6_nh_init+0x3d8/0x1580 [ 8995.851652][ T253] ip6_route_info_create+0xf18/0x17d0 [ 8995.851652][ T253] ip6_route_add+0x1c/0x140 [ 8995.851652][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 8995.851652][ T253] addrconf_add_dev+0xe2/0x170 [ 8995.851652][ T253] inet6_addr_add+0x12f/0xa40 [ 8995.851652][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 8995.851652][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8995.851652][ T253] netlink_rcv_skb+0x130/0x360 [ 8995.851652][ T253] netlink_unicast+0x449/0x710 [ 8995.851652][ T253] netlink_sendmsg+0x723/0xbe0 [ 8995.851652][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8995.851652][ T253] ___sys_sendmsg+0xee/0x170 [ 8995.851652][ T253] __sys_sendmsg+0xcd/0x170 [ 8995.851652][ T253] do_syscall_64+0xc6/0x1e0 [ 8995.851652][ T253] [ 8995.853854][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8995.853854][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 8995.853854][ T253] ipv6_find_idev+0x102/0x170 [ 8995.853854][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8995.853854][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8995.853854][ T253] netlink_rcv_skb+0x130/0x360 [ 8995.853854][ T253] netlink_unicast+0x449/0x710 [ 8995.853854][ T253] netlink_sendmsg+0x723/0xbe0 [ 8995.853854][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8995.853854][ T253] ___sys_sendmsg+0xee/0x170 [ 8995.853854][ T253] __sys_sendmsg+0xcd/0x170 [ 8995.853854][ T253] do_syscall_64+0xc6/0x1e0 [ 8995.853854][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8995.853854][ T253] [ 8995.855574][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 8995.855574][ T253] neigh_parms_alloc+0x1e5/0x510 [ 8995.855574][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 8995.855574][ T253] ipv6_find_idev+0x102/0x170 [ 8995.855574][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 8995.855574][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8995.855574][ T253] netlink_rcv_skb+0x130/0x360 [ 8995.855574][ T253] netlink_unicast+0x449/0x710 [ 8995.855574][ T253] netlink_sendmsg+0x723/0xbe0 [ 8995.855574][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 8995.855574][ T253] ___sys_sendmsg+0xee/0x170 [ 8995.855574][ T253] __sys_sendmsg+0xcd/0x170 [ 8995.855574][ T253] do_syscall_64+0xc6/0x1e0 [ 8995.855574][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8995.855574][ T253] [ 9006.098344][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9006.098760][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9006.098760][ T253] dst_init+0x84/0x4a0 [ 9006.098760][ T253] dst_alloc+0x97/0x150 [ 9006.098760][ T253] ip6_dst_alloc+0x23/0x90 [ 9006.098760][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9006.098760][ T253] ip6_pol_route+0x56f/0x840 [ 9006.098760][ T253] fib6_rule_lookup+0x334/0x630 [ 9006.098760][ T253] ip6_route_output_flags+0x259/0x480 [ 9006.098760][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9006.098760][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9006.098760][ T253] netlink_rcv_skb+0x130/0x360 [ 9006.098760][ T253] netlink_unicast+0x449/0x710 [ 9006.098760][ T253] netlink_sendmsg+0x723/0xbe0 [ 9006.098760][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9006.098760][ T253] ___sys_sendmsg+0xee/0x170 [ 9006.098760][ T253] __sys_sendmsg+0xcd/0x170 [ 9006.098760][ T253] do_syscall_64+0xc6/0x1e0 [ 9006.098760][ T253] [ 9006.100963][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9006.100963][ T253] netdev_get_by_index+0x5e/0x80 [ 9006.100963][ T253] fib6_nh_init+0x3d8/0x1580 [ 9006.100963][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9006.100963][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9006.100963][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9006.100963][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9006.100963][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9006.100963][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9006.100963][ T253] addrconf_dad_begin+0x310/0x670 [ 9006.100963][ T253] addrconf_dad_work+0x10b/0xab0 [ 9006.100963][ T253] process_one_work+0x84d/0x18a0 [ 9006.100963][ T253] worker_thread+0x587/0xd30 [ 9006.100963][ T253] kthread+0x28a/0x350 [ 9006.100963][ T253] ret_from_fork+0x31/0x70 [ 9006.100963][ T253] ret_from_fork_asm+0x1a/0x30 [ 9006.100963][ T253] [ 9006.103104][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9006.103104][ T253] netdev_get_by_index+0x5e/0x80 [ 9006.103104][ T253] fib6_nh_init+0x3d8/0x1580 [ 9006.103104][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9006.103104][ T253] ip6_route_add+0x1c/0x140 [ 9006.103104][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9006.103104][ T253] inet6_addr_add+0x4f8/0xa40 [ 9006.103104][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9006.103104][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9006.103104][ T253] netlink_rcv_skb+0x130/0x360 [ 9006.103104][ T253] netlink_unicast+0x449/0x710 [ 9006.103104][ T253] netlink_sendmsg+0x723/0xbe0 [ 9006.103104][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9006.103104][ T253] ___sys_sendmsg+0xee/0x170 [ 9006.103104][ T253] __sys_sendmsg+0xcd/0x170 [ 9006.103104][ T253] do_syscall_64+0xc6/0x1e0 [ 9006.103104][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9006.103104][ T253] [ 9006.105342][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9006.105342][ T253] netdev_get_by_index+0x5e/0x80 [ 9006.105342][ T253] fib6_nh_init+0x3d8/0x1580 [ 9006.105342][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9006.105342][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9006.105342][ T253] ipv6_add_addr+0x411/0x2000 [ 9006.105342][ T253] inet6_addr_add+0x30e/0xa40 [ 9006.105342][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9006.105342][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9006.105342][ T253] netlink_rcv_skb+0x130/0x360 [ 9006.105342][ T253] netlink_unicast+0x449/0x710 [ 9006.105342][ T253] netlink_sendmsg+0x723/0xbe0 [ 9006.105342][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9006.105342][ T253] ___sys_sendmsg+0xee/0x170 [ 9006.105342][ T253] __sys_sendmsg+0xcd/0x170 [ 9006.105342][ T253] do_syscall_64+0xc6/0x1e0 [ 9006.105342][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9006.105342][ T253] [ 9006.107574][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9006.107574][ T253] netdev_get_by_index+0x5e/0x80 [ 9006.107574][ T253] fib6_nh_init+0x3d8/0x1580 [ 9006.107574][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9006.107574][ T253] ip6_route_add+0x1c/0x140 [ 9006.107574][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9006.107574][ T253] addrconf_add_dev+0xe2/0x170 [ 9006.107574][ T253] inet6_addr_add+0x12f/0xa40 [ 9006.107574][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9006.107574][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9006.107574][ T253] netlink_rcv_skb+0x130/0x360 [ 9006.107574][ T253] netlink_unicast+0x449/0x710 [ 9006.107574][ T253] netlink_sendmsg+0x723/0xbe0 [ 9006.107574][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9006.107574][ T253] ___sys_sendmsg+0xee/0x170 [ 9006.107574][ T253] __sys_sendmsg+0xcd/0x170 [ 9006.107574][ T253] do_syscall_64+0xc6/0x1e0 [ 9006.107574][ T253] [ 9006.109844][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9006.109844][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9006.109844][ T253] ipv6_find_idev+0x102/0x170 [ 9006.109844][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9006.109844][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9006.109844][ T253] netlink_rcv_skb+0x130/0x360 [ 9006.109844][ T253] netlink_unicast+0x449/0x710 [ 9006.109844][ T253] netlink_sendmsg+0x723/0xbe0 [ 9006.109844][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9006.109844][ T253] ___sys_sendmsg+0xee/0x170 [ 9006.109844][ T253] __sys_sendmsg+0xcd/0x170 [ 9006.109844][ T253] do_syscall_64+0xc6/0x1e0 [ 9006.109844][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9006.109844][ T253] [ 9006.111706][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9006.111706][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9006.111706][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9006.111706][ T253] ipv6_find_idev+0x102/0x170 [ 9006.111706][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9006.111706][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9006.111706][ T253] netlink_rcv_skb+0x130/0x360 [ 9006.111706][ T253] netlink_unicast+0x449/0x710 [ 9006.111706][ T253] netlink_sendmsg+0x723/0xbe0 [ 9006.111706][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9006.111706][ T253] ___sys_sendmsg+0xee/0x170 [ 9006.111706][ T253] __sys_sendmsg+0xcd/0x170 [ 9006.111706][ T253] do_syscall_64+0xc6/0x1e0 [ 9006.111706][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9006.111706][ T253] [ 9016.354335][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9016.354770][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9016.354770][ T253] dst_init+0x84/0x4a0 [ 9016.354770][ T253] dst_alloc+0x97/0x150 [ 9016.354770][ T253] ip6_dst_alloc+0x23/0x90 [ 9016.354770][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9016.354770][ T253] ip6_pol_route+0x56f/0x840 [ 9016.354770][ T253] fib6_rule_lookup+0x334/0x630 [ 9016.354770][ T253] ip6_route_output_flags+0x259/0x480 [ 9016.354770][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9016.354770][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9016.354770][ T253] netlink_rcv_skb+0x130/0x360 [ 9016.354770][ T253] netlink_unicast+0x449/0x710 [ 9016.354770][ T253] netlink_sendmsg+0x723/0xbe0 [ 9016.354770][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9016.354770][ T253] ___sys_sendmsg+0xee/0x170 [ 9016.354770][ T253] __sys_sendmsg+0xcd/0x170 [ 9016.354770][ T253] do_syscall_64+0xc6/0x1e0 [ 9016.354770][ T253] [ 9016.357142][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9016.357142][ T253] netdev_get_by_index+0x5e/0x80 [ 9016.357142][ T253] fib6_nh_init+0x3d8/0x1580 [ 9016.357142][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9016.357142][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9016.357142][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9016.357142][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9016.357142][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9016.357142][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9016.357142][ T253] addrconf_dad_begin+0x310/0x670 [ 9016.357142][ T253] addrconf_dad_work+0x10b/0xab0 [ 9016.357142][ T253] process_one_work+0x84d/0x18a0 [ 9016.357142][ T253] worker_thread+0x587/0xd30 [ 9016.357142][ T253] kthread+0x28a/0x350 [ 9016.357142][ T253] ret_from_fork+0x31/0x70 [ 9016.357142][ T253] ret_from_fork_asm+0x1a/0x30 [ 9016.357142][ T253] [ 9016.359479][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9016.359479][ T253] netdev_get_by_index+0x5e/0x80 [ 9016.359479][ T253] fib6_nh_init+0x3d8/0x1580 [ 9016.359479][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9016.359479][ T253] ip6_route_add+0x1c/0x140 [ 9016.359479][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9016.359479][ T253] inet6_addr_add+0x4f8/0xa40 [ 9016.359479][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9016.359479][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9016.359479][ T253] netlink_rcv_skb+0x130/0x360 [ 9016.359479][ T253] netlink_unicast+0x449/0x710 [ 9016.359479][ T253] netlink_sendmsg+0x723/0xbe0 [ 9016.359479][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9016.359479][ T253] ___sys_sendmsg+0xee/0x170 [ 9016.359479][ T253] __sys_sendmsg+0xcd/0x170 [ 9016.359479][ T253] do_syscall_64+0xc6/0x1e0 [ 9016.359479][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9016.359479][ T253] [ 9016.361905][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9016.361905][ T253] netdev_get_by_index+0x5e/0x80 [ 9016.361905][ T253] fib6_nh_init+0x3d8/0x1580 [ 9016.361905][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9016.361905][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9016.361905][ T253] ipv6_add_addr+0x411/0x2000 [ 9016.361905][ T253] inet6_addr_add+0x30e/0xa40 [ 9016.361905][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9016.361905][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9016.361905][ T253] netlink_rcv_skb+0x130/0x360 [ 9016.361905][ T253] netlink_unicast+0x449/0x710 [ 9016.361905][ T253] netlink_sendmsg+0x723/0xbe0 [ 9016.361905][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9016.361905][ T253] ___sys_sendmsg+0xee/0x170 [ 9016.361905][ T253] __sys_sendmsg+0xcd/0x170 [ 9016.361905][ T253] do_syscall_64+0xc6/0x1e0 [ 9016.361905][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9016.361905][ T253] [ 9016.364322][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9016.364322][ T253] netdev_get_by_index+0x5e/0x80 [ 9016.364322][ T253] fib6_nh_init+0x3d8/0x1580 [ 9016.364322][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9016.364322][ T253] ip6_route_add+0x1c/0x140 [ 9016.364322][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9016.364322][ T253] addrconf_add_dev+0xe2/0x170 [ 9016.364322][ T253] inet6_addr_add+0x12f/0xa40 [ 9016.364322][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9016.364322][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9016.364322][ T253] netlink_rcv_skb+0x130/0x360 [ 9016.364322][ T253] netlink_unicast+0x449/0x710 [ 9016.364322][ T253] netlink_sendmsg+0x723/0xbe0 [ 9016.364322][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9016.364322][ T253] ___sys_sendmsg+0xee/0x170 [ 9016.364322][ T253] __sys_sendmsg+0xcd/0x170 [ 9016.364322][ T253] do_syscall_64+0xc6/0x1e0 [ 9016.364322][ T253] [ 9016.366570][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9016.366570][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9016.366570][ T253] ipv6_find_idev+0x102/0x170 [ 9016.366570][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9016.366570][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9016.366570][ T253] netlink_rcv_skb+0x130/0x360 [ 9016.366570][ T253] netlink_unicast+0x449/0x710 [ 9016.366570][ T253] netlink_sendmsg+0x723/0xbe0 [ 9016.366570][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9016.366570][ T253] ___sys_sendmsg+0xee/0x170 [ 9016.366570][ T253] __sys_sendmsg+0xcd/0x170 [ 9016.366570][ T253] do_syscall_64+0xc6/0x1e0 [ 9016.366570][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9016.366570][ T253] [ 9016.368311][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9016.368311][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9016.368311][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9016.368311][ T253] ipv6_find_idev+0x102/0x170 [ 9016.368311][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9016.368311][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9016.368311][ T253] netlink_rcv_skb+0x130/0x360 [ 9016.368311][ T253] netlink_unicast+0x449/0x710 [ 9016.368311][ T253] netlink_sendmsg+0x723/0xbe0 [ 9016.368311][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9016.368311][ T253] ___sys_sendmsg+0xee/0x170 [ 9016.368311][ T253] __sys_sendmsg+0xcd/0x170 [ 9016.368311][ T253] do_syscall_64+0xc6/0x1e0 [ 9016.368311][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9016.368311][ T253] [ 9026.610310][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9026.610785][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9026.610785][ T253] dst_init+0x84/0x4a0 [ 9026.610785][ T253] dst_alloc+0x97/0x150 [ 9026.610785][ T253] ip6_dst_alloc+0x23/0x90 [ 9026.610785][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9026.610785][ T253] ip6_pol_route+0x56f/0x840 [ 9026.610785][ T253] fib6_rule_lookup+0x334/0x630 [ 9026.610785][ T253] ip6_route_output_flags+0x259/0x480 [ 9026.610785][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9026.610785][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9026.610785][ T253] netlink_rcv_skb+0x130/0x360 [ 9026.610785][ T253] netlink_unicast+0x449/0x710 [ 9026.610785][ T253] netlink_sendmsg+0x723/0xbe0 [ 9026.610785][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9026.610785][ T253] ___sys_sendmsg+0xee/0x170 [ 9026.610785][ T253] __sys_sendmsg+0xcd/0x170 [ 9026.610785][ T253] do_syscall_64+0xc6/0x1e0 [ 9026.610785][ T253] [ 9026.612970][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9026.612970][ T253] netdev_get_by_index+0x5e/0x80 [ 9026.612970][ T253] fib6_nh_init+0x3d8/0x1580 [ 9026.612970][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9026.612970][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9026.612970][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9026.612970][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9026.612970][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9026.612970][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9026.612970][ T253] addrconf_dad_begin+0x310/0x670 [ 9026.612970][ T253] addrconf_dad_work+0x10b/0xab0 [ 9026.612970][ T253] process_one_work+0x84d/0x18a0 [ 9026.612970][ T253] worker_thread+0x587/0xd30 [ 9026.612970][ T253] kthread+0x28a/0x350 [ 9026.612970][ T253] ret_from_fork+0x31/0x70 [ 9026.612970][ T253] ret_from_fork_asm+0x1a/0x30 [ 9026.612970][ T253] [ 9026.615111][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9026.615111][ T253] netdev_get_by_index+0x5e/0x80 [ 9026.615111][ T253] fib6_nh_init+0x3d8/0x1580 [ 9026.615111][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9026.615111][ T253] ip6_route_add+0x1c/0x140 [ 9026.615111][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9026.615111][ T253] inet6_addr_add+0x4f8/0xa40 [ 9026.615111][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9026.615111][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9026.615111][ T253] netlink_rcv_skb+0x130/0x360 [ 9026.615111][ T253] netlink_unicast+0x449/0x710 [ 9026.615111][ T253] netlink_sendmsg+0x723/0xbe0 [ 9026.615111][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9026.615111][ T253] ___sys_sendmsg+0xee/0x170 [ 9026.615111][ T253] __sys_sendmsg+0xcd/0x170 [ 9026.615111][ T253] do_syscall_64+0xc6/0x1e0 [ 9026.615111][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9026.615111][ T253] [ 9026.617347][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9026.617347][ T253] netdev_get_by_index+0x5e/0x80 [ 9026.617347][ T253] fib6_nh_init+0x3d8/0x1580 [ 9026.617347][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9026.617347][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9026.617347][ T253] ipv6_add_addr+0x411/0x2000 [ 9026.617347][ T253] inet6_addr_add+0x30e/0xa40 [ 9026.617347][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9026.617347][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9026.617347][ T253] netlink_rcv_skb+0x130/0x360 [ 9026.617347][ T253] netlink_unicast+0x449/0x710 [ 9026.617347][ T253] netlink_sendmsg+0x723/0xbe0 [ 9026.617347][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9026.617347][ T253] ___sys_sendmsg+0xee/0x170 [ 9026.617347][ T253] __sys_sendmsg+0xcd/0x170 [ 9026.617347][ T253] do_syscall_64+0xc6/0x1e0 [ 9026.617347][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9026.617347][ T253] [ 9026.619593][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9026.619593][ T253] netdev_get_by_index+0x5e/0x80 [ 9026.619593][ T253] fib6_nh_init+0x3d8/0x1580 [ 9026.619593][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9026.619593][ T253] ip6_route_add+0x1c/0x140 [ 9026.619593][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9026.619593][ T253] addrconf_add_dev+0xe2/0x170 [ 9026.619593][ T253] inet6_addr_add+0x12f/0xa40 [ 9026.619593][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9026.619593][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9026.619593][ T253] netlink_rcv_skb+0x130/0x360 [ 9026.619593][ T253] netlink_unicast+0x449/0x710 [ 9026.619593][ T253] netlink_sendmsg+0x723/0xbe0 [ 9026.619593][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9026.619593][ T253] ___sys_sendmsg+0xee/0x170 [ 9026.619593][ T253] __sys_sendmsg+0xcd/0x170 [ 9026.619593][ T253] do_syscall_64+0xc6/0x1e0 [ 9026.619593][ T253] [ 9026.621782][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9026.621782][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9026.621782][ T253] ipv6_find_idev+0x102/0x170 [ 9026.621782][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9026.621782][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9026.621782][ T253] netlink_rcv_skb+0x130/0x360 [ 9026.621782][ T253] netlink_unicast+0x449/0x710 [ 9026.621782][ T253] netlink_sendmsg+0x723/0xbe0 [ 9026.621782][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9026.621782][ T253] ___sys_sendmsg+0xee/0x170 [ 9026.621782][ T253] __sys_sendmsg+0xcd/0x170 [ 9026.621782][ T253] do_syscall_64+0xc6/0x1e0 [ 9026.621782][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9026.621782][ T253] [ 9026.623511][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9026.623511][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9026.623511][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9026.623511][ T253] ipv6_find_idev+0x102/0x170 [ 9026.623511][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9026.623511][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9026.623511][ T253] netlink_rcv_skb+0x130/0x360 [ 9026.623511][ T253] netlink_unicast+0x449/0x710 [ 9026.623511][ T253] netlink_sendmsg+0x723/0xbe0 [ 9026.623511][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9026.623511][ T253] ___sys_sendmsg+0xee/0x170 [ 9026.623511][ T253] __sys_sendmsg+0xcd/0x170 [ 9026.623511][ T253] do_syscall_64+0xc6/0x1e0 [ 9026.623511][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9026.623511][ T253] [ 9036.866240][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9036.866713][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9036.866713][ T253] dst_init+0x84/0x4a0 [ 9036.866713][ T253] dst_alloc+0x97/0x150 [ 9036.866713][ T253] ip6_dst_alloc+0x23/0x90 [ 9036.866713][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9036.866713][ T253] ip6_pol_route+0x56f/0x840 [ 9036.866713][ T253] fib6_rule_lookup+0x334/0x630 [ 9036.866713][ T253] ip6_route_output_flags+0x259/0x480 [ 9036.866713][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9036.866713][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9036.866713][ T253] netlink_rcv_skb+0x130/0x360 [ 9036.866713][ T253] netlink_unicast+0x449/0x710 [ 9036.866713][ T253] netlink_sendmsg+0x723/0xbe0 [ 9036.866713][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9036.866713][ T253] ___sys_sendmsg+0xee/0x170 [ 9036.866713][ T253] __sys_sendmsg+0xcd/0x170 [ 9036.866713][ T253] do_syscall_64+0xc6/0x1e0 [ 9036.866713][ T253] [ 9036.868916][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9036.868916][ T253] netdev_get_by_index+0x5e/0x80 [ 9036.868916][ T253] fib6_nh_init+0x3d8/0x1580 [ 9036.868916][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9036.868916][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9036.868916][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9036.868916][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9036.868916][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9036.868916][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9036.868916][ T253] addrconf_dad_begin+0x310/0x670 [ 9036.868916][ T253] addrconf_dad_work+0x10b/0xab0 [ 9036.868916][ T253] process_one_work+0x84d/0x18a0 [ 9036.868916][ T253] worker_thread+0x587/0xd30 [ 9036.868916][ T253] kthread+0x28a/0x350 [ 9036.868916][ T253] ret_from_fork+0x31/0x70 [ 9036.868916][ T253] ret_from_fork_asm+0x1a/0x30 [ 9036.868916][ T253] [ 9036.871057][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9036.871057][ T253] netdev_get_by_index+0x5e/0x80 [ 9036.871057][ T253] fib6_nh_init+0x3d8/0x1580 [ 9036.871057][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9036.871057][ T253] ip6_route_add+0x1c/0x140 [ 9036.871057][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9036.871057][ T253] inet6_addr_add+0x4f8/0xa40 [ 9036.871057][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9036.871057][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9036.871057][ T253] netlink_rcv_skb+0x130/0x360 [ 9036.871057][ T253] netlink_unicast+0x449/0x710 [ 9036.871057][ T253] netlink_sendmsg+0x723/0xbe0 [ 9036.871057][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9036.871057][ T253] ___sys_sendmsg+0xee/0x170 [ 9036.871057][ T253] __sys_sendmsg+0xcd/0x170 [ 9036.871057][ T253] do_syscall_64+0xc6/0x1e0 [ 9036.871057][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9036.871057][ T253] [ 9036.873293][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9036.873293][ T253] netdev_get_by_index+0x5e/0x80 [ 9036.873293][ T253] fib6_nh_init+0x3d8/0x1580 [ 9036.873293][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9036.873293][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9036.873293][ T253] ipv6_add_addr+0x411/0x2000 [ 9036.873293][ T253] inet6_addr_add+0x30e/0xa40 [ 9036.873293][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9036.873293][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9036.873293][ T253] netlink_rcv_skb+0x130/0x360 [ 9036.873293][ T253] netlink_unicast+0x449/0x710 [ 9036.873293][ T253] netlink_sendmsg+0x723/0xbe0 [ 9036.873293][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9036.873293][ T253] ___sys_sendmsg+0xee/0x170 [ 9036.873293][ T253] __sys_sendmsg+0xcd/0x170 [ 9036.873293][ T253] do_syscall_64+0xc6/0x1e0 [ 9036.873293][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9036.873293][ T253] [ 9036.875527][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9036.875527][ T253] netdev_get_by_index+0x5e/0x80 [ 9036.875527][ T253] fib6_nh_init+0x3d8/0x1580 [ 9036.875527][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9036.875527][ T253] ip6_route_add+0x1c/0x140 [ 9036.875527][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9036.875527][ T253] addrconf_add_dev+0xe2/0x170 [ 9036.875527][ T253] inet6_addr_add+0x12f/0xa40 [ 9036.875527][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9036.875527][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9036.875527][ T253] netlink_rcv_skb+0x130/0x360 [ 9036.875527][ T253] netlink_unicast+0x449/0x710 [ 9036.875527][ T253] netlink_sendmsg+0x723/0xbe0 [ 9036.875527][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9036.875527][ T253] ___sys_sendmsg+0xee/0x170 [ 9036.875527][ T253] __sys_sendmsg+0xcd/0x170 [ 9036.875527][ T253] do_syscall_64+0xc6/0x1e0 [ 9036.875527][ T253] [ 9036.877738][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9036.877738][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9036.877738][ T253] ipv6_find_idev+0x102/0x170 [ 9036.877738][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9036.877738][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9036.877738][ T253] netlink_rcv_skb+0x130/0x360 [ 9036.877738][ T253] netlink_unicast+0x449/0x710 [ 9036.877738][ T253] netlink_sendmsg+0x723/0xbe0 [ 9036.877738][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9036.877738][ T253] ___sys_sendmsg+0xee/0x170 [ 9036.877738][ T253] __sys_sendmsg+0xcd/0x170 [ 9036.877738][ T253] do_syscall_64+0xc6/0x1e0 [ 9036.877738][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9036.877738][ T253] [ 9036.879462][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9036.879462][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9036.879462][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9036.879462][ T253] ipv6_find_idev+0x102/0x170 [ 9036.879462][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9036.879462][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9036.879462][ T253] netlink_rcv_skb+0x130/0x360 [ 9036.879462][ T253] netlink_unicast+0x449/0x710 [ 9036.879462][ T253] netlink_sendmsg+0x723/0xbe0 [ 9036.879462][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9036.879462][ T253] ___sys_sendmsg+0xee/0x170 [ 9036.879462][ T253] __sys_sendmsg+0xcd/0x170 [ 9036.879462][ T253] do_syscall_64+0xc6/0x1e0 [ 9036.879462][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9036.879462][ T253] [ 9047.122312][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9047.122730][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9047.122730][ T253] dst_init+0x84/0x4a0 [ 9047.122730][ T253] dst_alloc+0x97/0x150 [ 9047.122730][ T253] ip6_dst_alloc+0x23/0x90 [ 9047.122730][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9047.122730][ T253] ip6_pol_route+0x56f/0x840 [ 9047.122730][ T253] fib6_rule_lookup+0x334/0x630 [ 9047.122730][ T253] ip6_route_output_flags+0x259/0x480 [ 9047.122730][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9047.122730][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9047.122730][ T253] netlink_rcv_skb+0x130/0x360 [ 9047.122730][ T253] netlink_unicast+0x449/0x710 [ 9047.122730][ T253] netlink_sendmsg+0x723/0xbe0 [ 9047.122730][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9047.122730][ T253] ___sys_sendmsg+0xee/0x170 [ 9047.122730][ T253] __sys_sendmsg+0xcd/0x170 [ 9047.122730][ T253] do_syscall_64+0xc6/0x1e0 [ 9047.122730][ T253] [ 9047.124932][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9047.124932][ T253] netdev_get_by_index+0x5e/0x80 [ 9047.124932][ T253] fib6_nh_init+0x3d8/0x1580 [ 9047.124932][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9047.124932][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9047.124932][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9047.124932][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9047.124932][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9047.124932][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9047.124932][ T253] addrconf_dad_begin+0x310/0x670 [ 9047.124932][ T253] addrconf_dad_work+0x10b/0xab0 [ 9047.124932][ T253] process_one_work+0x84d/0x18a0 [ 9047.124932][ T253] worker_thread+0x587/0xd30 [ 9047.124932][ T253] kthread+0x28a/0x350 [ 9047.124932][ T253] ret_from_fork+0x31/0x70 [ 9047.124932][ T253] ret_from_fork_asm+0x1a/0x30 [ 9047.124932][ T253] [ 9047.127087][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9047.127087][ T253] netdev_get_by_index+0x5e/0x80 [ 9047.127087][ T253] fib6_nh_init+0x3d8/0x1580 [ 9047.127087][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9047.127087][ T253] ip6_route_add+0x1c/0x140 [ 9047.127087][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9047.127087][ T253] inet6_addr_add+0x4f8/0xa40 [ 9047.127087][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9047.127087][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9047.127087][ T253] netlink_rcv_skb+0x130/0x360 [ 9047.127087][ T253] netlink_unicast+0x449/0x710 [ 9047.127087][ T253] netlink_sendmsg+0x723/0xbe0 [ 9047.127087][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9047.127087][ T253] ___sys_sendmsg+0xee/0x170 [ 9047.127087][ T253] __sys_sendmsg+0xcd/0x170 [ 9047.127087][ T253] do_syscall_64+0xc6/0x1e0 [ 9047.127087][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9047.127087][ T253] [ 9047.129337][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9047.129337][ T253] netdev_get_by_index+0x5e/0x80 [ 9047.129337][ T253] fib6_nh_init+0x3d8/0x1580 [ 9047.129337][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9047.129337][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9047.129337][ T253] ipv6_add_addr+0x411/0x2000 [ 9047.129337][ T253] inet6_addr_add+0x30e/0xa40 [ 9047.129337][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9047.129337][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9047.129337][ T253] netlink_rcv_skb+0x130/0x360 [ 9047.129337][ T253] netlink_unicast+0x449/0x710 [ 9047.129337][ T253] netlink_sendmsg+0x723/0xbe0 [ 9047.129337][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9047.129337][ T253] ___sys_sendmsg+0xee/0x170 [ 9047.129337][ T253] __sys_sendmsg+0xcd/0x170 [ 9047.129337][ T253] do_syscall_64+0xc6/0x1e0 [ 9047.129337][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9047.129337][ T253] [ 9047.131578][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9047.131578][ T253] netdev_get_by_index+0x5e/0x80 [ 9047.131578][ T253] fib6_nh_init+0x3d8/0x1580 [ 9047.131578][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9047.131578][ T253] ip6_route_add+0x1c/0x140 [ 9047.131578][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9047.131578][ T253] addrconf_add_dev+0xe2/0x170 [ 9047.131578][ T253] inet6_addr_add+0x12f/0xa40 [ 9047.131578][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9047.131578][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9047.131578][ T253] netlink_rcv_skb+0x130/0x360 [ 9047.131578][ T253] netlink_unicast+0x449/0x710 [ 9047.131578][ T253] netlink_sendmsg+0x723/0xbe0 [ 9047.131578][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9047.131578][ T253] ___sys_sendmsg+0xee/0x170 [ 9047.131578][ T253] __sys_sendmsg+0xcd/0x170 [ 9047.131578][ T253] do_syscall_64+0xc6/0x1e0 [ 9047.131578][ T253] [ 9047.133782][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9047.133782][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9047.133782][ T253] ipv6_find_idev+0x102/0x170 [ 9047.133782][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9047.133782][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9047.133782][ T253] netlink_rcv_skb+0x130/0x360 [ 9047.133782][ T253] netlink_unicast+0x449/0x710 [ 9047.133782][ T253] netlink_sendmsg+0x723/0xbe0 [ 9047.133782][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9047.133782][ T253] ___sys_sendmsg+0xee/0x170 [ 9047.133782][ T253] __sys_sendmsg+0xcd/0x170 [ 9047.133782][ T253] do_syscall_64+0xc6/0x1e0 [ 9047.133782][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9047.133782][ T253] [ 9047.135512][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9047.135512][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9047.135512][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9047.135512][ T253] ipv6_find_idev+0x102/0x170 [ 9047.135512][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9047.135512][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9047.135512][ T253] netlink_rcv_skb+0x130/0x360 [ 9047.135512][ T253] netlink_unicast+0x449/0x710 [ 9047.135512][ T253] netlink_sendmsg+0x723/0xbe0 [ 9047.135512][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9047.135512][ T253] ___sys_sendmsg+0xee/0x170 [ 9047.135512][ T253] __sys_sendmsg+0xcd/0x170 [ 9047.135512][ T253] do_syscall_64+0xc6/0x1e0 [ 9047.135512][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9047.135512][ T253] [ 9057.314329][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9057.314750][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9057.314750][ T253] dst_init+0x84/0x4a0 [ 9057.314750][ T253] dst_alloc+0x97/0x150 [ 9057.314750][ T253] ip6_dst_alloc+0x23/0x90 [ 9057.314750][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9057.314750][ T253] ip6_pol_route+0x56f/0x840 [ 9057.314750][ T253] fib6_rule_lookup+0x334/0x630 [ 9057.314750][ T253] ip6_route_output_flags+0x259/0x480 [ 9057.314750][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9057.314750][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9057.314750][ T253] netlink_rcv_skb+0x130/0x360 [ 9057.314750][ T253] netlink_unicast+0x449/0x710 [ 9057.314750][ T253] netlink_sendmsg+0x723/0xbe0 [ 9057.314750][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9057.314750][ T253] ___sys_sendmsg+0xee/0x170 [ 9057.314750][ T253] __sys_sendmsg+0xcd/0x170 [ 9057.314750][ T253] do_syscall_64+0xc6/0x1e0 [ 9057.314750][ T253] [ 9057.316944][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9057.316944][ T253] netdev_get_by_index+0x5e/0x80 [ 9057.316944][ T253] fib6_nh_init+0x3d8/0x1580 [ 9057.316944][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9057.316944][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9057.316944][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9057.316944][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9057.316944][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9057.316944][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9057.316944][ T253] addrconf_dad_begin+0x310/0x670 [ 9057.316944][ T253] addrconf_dad_work+0x10b/0xab0 [ 9057.316944][ T253] process_one_work+0x84d/0x18a0 [ 9057.316944][ T253] worker_thread+0x587/0xd30 [ 9057.316944][ T253] kthread+0x28a/0x350 [ 9057.316944][ T253] ret_from_fork+0x31/0x70 [ 9057.316944][ T253] ret_from_fork_asm+0x1a/0x30 [ 9057.316944][ T253] [ 9057.319101][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9057.319101][ T253] netdev_get_by_index+0x5e/0x80 [ 9057.319101][ T253] fib6_nh_init+0x3d8/0x1580 [ 9057.319101][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9057.319101][ T253] ip6_route_add+0x1c/0x140 [ 9057.319101][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9057.319101][ T253] inet6_addr_add+0x4f8/0xa40 [ 9057.319101][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9057.319101][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9057.319101][ T253] netlink_rcv_skb+0x130/0x360 [ 9057.319101][ T253] netlink_unicast+0x449/0x710 [ 9057.319101][ T253] netlink_sendmsg+0x723/0xbe0 [ 9057.319101][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9057.319101][ T253] ___sys_sendmsg+0xee/0x170 [ 9057.319101][ T253] __sys_sendmsg+0xcd/0x170 [ 9057.319101][ T253] do_syscall_64+0xc6/0x1e0 [ 9057.319101][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9057.319101][ T253] [ 9057.321357][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9057.321357][ T253] netdev_get_by_index+0x5e/0x80 [ 9057.321357][ T253] fib6_nh_init+0x3d8/0x1580 [ 9057.321357][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9057.321357][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9057.321357][ T253] ipv6_add_addr+0x411/0x2000 [ 9057.321357][ T253] inet6_addr_add+0x30e/0xa40 [ 9057.321357][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9057.321357][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9057.321357][ T253] netlink_rcv_skb+0x130/0x360 [ 9057.321357][ T253] netlink_unicast+0x449/0x710 [ 9057.321357][ T253] netlink_sendmsg+0x723/0xbe0 [ 9057.321357][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9057.321357][ T253] ___sys_sendmsg+0xee/0x170 [ 9057.321357][ T253] __sys_sendmsg+0xcd/0x170 [ 9057.321357][ T253] do_syscall_64+0xc6/0x1e0 [ 9057.321357][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9057.321357][ T253] [ 9057.323599][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9057.323599][ T253] netdev_get_by_index+0x5e/0x80 [ 9057.323599][ T253] fib6_nh_init+0x3d8/0x1580 [ 9057.323599][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9057.323599][ T253] ip6_route_add+0x1c/0x140 [ 9057.323599][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9057.323599][ T253] addrconf_add_dev+0xe2/0x170 [ 9057.323599][ T253] inet6_addr_add+0x12f/0xa40 [ 9057.323599][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9057.323599][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9057.323599][ T253] netlink_rcv_skb+0x130/0x360 [ 9057.323599][ T253] netlink_unicast+0x449/0x710 [ 9057.323599][ T253] netlink_sendmsg+0x723/0xbe0 [ 9057.323599][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9057.323599][ T253] ___sys_sendmsg+0xee/0x170 [ 9057.323599][ T253] __sys_sendmsg+0xcd/0x170 [ 9057.323599][ T253] do_syscall_64+0xc6/0x1e0 [ 9057.323599][ T253] [ 9057.325804][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9057.325804][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9057.325804][ T253] ipv6_find_idev+0x102/0x170 [ 9057.325804][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9057.325804][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9057.325804][ T253] netlink_rcv_skb+0x130/0x360 [ 9057.325804][ T253] netlink_unicast+0x449/0x710 [ 9057.325804][ T253] netlink_sendmsg+0x723/0xbe0 [ 9057.325804][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9057.325804][ T253] ___sys_sendmsg+0xee/0x170 [ 9057.325804][ T253] __sys_sendmsg+0xcd/0x170 [ 9057.325804][ T253] do_syscall_64+0xc6/0x1e0 [ 9057.325804][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9057.325804][ T253] [ 9057.327667][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9057.327667][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9057.327667][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9057.327667][ T253] ipv6_find_idev+0x102/0x170 [ 9057.327667][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9057.327667][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9057.327667][ T253] netlink_rcv_skb+0x130/0x360 [ 9057.327667][ T253] netlink_unicast+0x449/0x710 [ 9057.327667][ T253] netlink_sendmsg+0x723/0xbe0 [ 9057.327667][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9057.327667][ T253] ___sys_sendmsg+0xee/0x170 [ 9057.327667][ T253] __sys_sendmsg+0xcd/0x170 [ 9057.327667][ T253] do_syscall_64+0xc6/0x1e0 [ 9057.327667][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9057.327667][ T253] [ 9067.522322][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9067.522800][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9067.522800][ T253] dst_init+0x84/0x4a0 [ 9067.522800][ T253] dst_alloc+0x97/0x150 [ 9067.522800][ T253] ip6_dst_alloc+0x23/0x90 [ 9067.522800][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9067.522800][ T253] ip6_pol_route+0x56f/0x840 [ 9067.522800][ T253] fib6_rule_lookup+0x334/0x630 [ 9067.522800][ T253] ip6_route_output_flags+0x259/0x480 [ 9067.522800][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9067.522800][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9067.522800][ T253] netlink_rcv_skb+0x130/0x360 [ 9067.522800][ T253] netlink_unicast+0x449/0x710 [ 9067.522800][ T253] netlink_sendmsg+0x723/0xbe0 [ 9067.522800][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9067.522800][ T253] ___sys_sendmsg+0xee/0x170 [ 9067.522800][ T253] __sys_sendmsg+0xcd/0x170 [ 9067.522800][ T253] do_syscall_64+0xc6/0x1e0 [ 9067.522800][ T253] [ 9067.524994][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9067.524994][ T253] netdev_get_by_index+0x5e/0x80 [ 9067.524994][ T253] fib6_nh_init+0x3d8/0x1580 [ 9067.524994][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9067.524994][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9067.524994][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9067.524994][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9067.524994][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9067.524994][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9067.524994][ T253] addrconf_dad_begin+0x310/0x670 [ 9067.524994][ T253] addrconf_dad_work+0x10b/0xab0 [ 9067.524994][ T253] process_one_work+0x84d/0x18a0 [ 9067.524994][ T253] worker_thread+0x587/0xd30 [ 9067.524994][ T253] kthread+0x28a/0x350 [ 9067.524994][ T253] ret_from_fork+0x31/0x70 [ 9067.524994][ T253] ret_from_fork_asm+0x1a/0x30 [ 9067.524994][ T253] [ 9067.527149][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9067.527149][ T253] netdev_get_by_index+0x5e/0x80 [ 9067.527149][ T253] fib6_nh_init+0x3d8/0x1580 [ 9067.527149][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9067.527149][ T253] ip6_route_add+0x1c/0x140 [ 9067.527149][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9067.527149][ T253] inet6_addr_add+0x4f8/0xa40 [ 9067.527149][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9067.527149][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9067.527149][ T253] netlink_rcv_skb+0x130/0x360 [ 9067.527149][ T253] netlink_unicast+0x449/0x710 [ 9067.527149][ T253] netlink_sendmsg+0x723/0xbe0 [ 9067.527149][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9067.527149][ T253] ___sys_sendmsg+0xee/0x170 [ 9067.527149][ T253] __sys_sendmsg+0xcd/0x170 [ 9067.527149][ T253] do_syscall_64+0xc6/0x1e0 [ 9067.527149][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9067.527149][ T253] [ 9067.529397][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9067.529397][ T253] netdev_get_by_index+0x5e/0x80 [ 9067.529397][ T253] fib6_nh_init+0x3d8/0x1580 [ 9067.529397][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9067.529397][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9067.529397][ T253] ipv6_add_addr+0x411/0x2000 [ 9067.529397][ T253] inet6_addr_add+0x30e/0xa40 [ 9067.529397][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9067.529397][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9067.529397][ T253] netlink_rcv_skb+0x130/0x360 [ 9067.529397][ T253] netlink_unicast+0x449/0x710 [ 9067.529397][ T253] netlink_sendmsg+0x723/0xbe0 [ 9067.529397][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9067.529397][ T253] ___sys_sendmsg+0xee/0x170 [ 9067.529397][ T253] __sys_sendmsg+0xcd/0x170 [ 9067.529397][ T253] do_syscall_64+0xc6/0x1e0 [ 9067.529397][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9067.529397][ T253] [ 9067.531633][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9067.531633][ T253] netdev_get_by_index+0x5e/0x80 [ 9067.531633][ T253] fib6_nh_init+0x3d8/0x1580 [ 9067.531633][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9067.531633][ T253] ip6_route_add+0x1c/0x140 [ 9067.531633][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9067.531633][ T253] addrconf_add_dev+0xe2/0x170 [ 9067.531633][ T253] inet6_addr_add+0x12f/0xa40 [ 9067.531633][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9067.531633][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9067.531633][ T253] netlink_rcv_skb+0x130/0x360 [ 9067.531633][ T253] netlink_unicast+0x449/0x710 [ 9067.531633][ T253] netlink_sendmsg+0x723/0xbe0 [ 9067.531633][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9067.531633][ T253] ___sys_sendmsg+0xee/0x170 [ 9067.531633][ T253] __sys_sendmsg+0xcd/0x170 [ 9067.531633][ T253] do_syscall_64+0xc6/0x1e0 [ 9067.531633][ T253] [ 9067.533829][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9067.533829][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9067.533829][ T253] ipv6_find_idev+0x102/0x170 [ 9067.533829][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9067.533829][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9067.533829][ T253] netlink_rcv_skb+0x130/0x360 [ 9067.533829][ T253] netlink_unicast+0x449/0x710 [ 9067.533829][ T253] netlink_sendmsg+0x723/0xbe0 [ 9067.533829][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9067.533829][ T253] ___sys_sendmsg+0xee/0x170 [ 9067.533829][ T253] __sys_sendmsg+0xcd/0x170 [ 9067.533829][ T253] do_syscall_64+0xc6/0x1e0 [ 9067.533829][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9067.533829][ T253] [ 9067.535551][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9067.535551][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9067.535551][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9067.535551][ T253] ipv6_find_idev+0x102/0x170 [ 9067.535551][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9067.535551][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9067.535551][ T253] netlink_rcv_skb+0x130/0x360 [ 9067.535551][ T253] netlink_unicast+0x449/0x710 [ 9067.535551][ T253] netlink_sendmsg+0x723/0xbe0 [ 9067.535551][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9067.535551][ T253] ___sys_sendmsg+0xee/0x170 [ 9067.535551][ T253] __sys_sendmsg+0xcd/0x170 [ 9067.535551][ T253] do_syscall_64+0xc6/0x1e0 [ 9067.535551][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9067.535551][ T253] [ 9077.842346][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9077.842758][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9077.842758][ T253] dst_init+0x84/0x4a0 [ 9077.842758][ T253] dst_alloc+0x97/0x150 [ 9077.842758][ T253] ip6_dst_alloc+0x23/0x90 [ 9077.842758][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9077.842758][ T253] ip6_pol_route+0x56f/0x840 [ 9077.842758][ T253] fib6_rule_lookup+0x334/0x630 [ 9077.842758][ T253] ip6_route_output_flags+0x259/0x480 [ 9077.842758][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9077.842758][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9077.842758][ T253] netlink_rcv_skb+0x130/0x360 [ 9077.842758][ T253] netlink_unicast+0x449/0x710 [ 9077.842758][ T253] netlink_sendmsg+0x723/0xbe0 [ 9077.842758][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9077.842758][ T253] ___sys_sendmsg+0xee/0x170 [ 9077.842758][ T253] __sys_sendmsg+0xcd/0x170 [ 9077.842758][ T253] do_syscall_64+0xc6/0x1e0 [ 9077.842758][ T253] [ 9077.844955][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9077.844955][ T253] netdev_get_by_index+0x5e/0x80 [ 9077.844955][ T253] fib6_nh_init+0x3d8/0x1580 [ 9077.844955][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9077.844955][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9077.844955][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9077.844955][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9077.844955][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9077.844955][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9077.844955][ T253] addrconf_dad_begin+0x310/0x670 [ 9077.844955][ T253] addrconf_dad_work+0x10b/0xab0 [ 9077.844955][ T253] process_one_work+0x84d/0x18a0 [ 9077.844955][ T253] worker_thread+0x587/0xd30 [ 9077.844955][ T253] kthread+0x28a/0x350 [ 9077.844955][ T253] ret_from_fork+0x31/0x70 [ 9077.844955][ T253] ret_from_fork_asm+0x1a/0x30 [ 9077.844955][ T253] [ 9077.847111][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9077.847111][ T253] netdev_get_by_index+0x5e/0x80 [ 9077.847111][ T253] fib6_nh_init+0x3d8/0x1580 [ 9077.847111][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9077.847111][ T253] ip6_route_add+0x1c/0x140 [ 9077.847111][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9077.847111][ T253] inet6_addr_add+0x4f8/0xa40 [ 9077.847111][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9077.847111][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9077.847111][ T253] netlink_rcv_skb+0x130/0x360 [ 9077.847111][ T253] netlink_unicast+0x449/0x710 [ 9077.847111][ T253] netlink_sendmsg+0x723/0xbe0 [ 9077.847111][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9077.847111][ T253] ___sys_sendmsg+0xee/0x170 [ 9077.847111][ T253] __sys_sendmsg+0xcd/0x170 [ 9077.847111][ T253] do_syscall_64+0xc6/0x1e0 [ 9077.847111][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9077.847111][ T253] [ 9077.849367][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9077.849367][ T253] netdev_get_by_index+0x5e/0x80 [ 9077.849367][ T253] fib6_nh_init+0x3d8/0x1580 [ 9077.849367][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9077.849367][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9077.849367][ T253] ipv6_add_addr+0x411/0x2000 [ 9077.849367][ T253] inet6_addr_add+0x30e/0xa40 [ 9077.849367][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9077.849367][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9077.849367][ T253] netlink_rcv_skb+0x130/0x360 [ 9077.849367][ T253] netlink_unicast+0x449/0x710 [ 9077.849367][ T253] netlink_sendmsg+0x723/0xbe0 [ 9077.849367][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9077.849367][ T253] ___sys_sendmsg+0xee/0x170 [ 9077.849367][ T253] __sys_sendmsg+0xcd/0x170 [ 9077.849367][ T253] do_syscall_64+0xc6/0x1e0 [ 9077.849367][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9077.849367][ T253] [ 9077.851608][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9077.851608][ T253] netdev_get_by_index+0x5e/0x80 [ 9077.851608][ T253] fib6_nh_init+0x3d8/0x1580 [ 9077.851608][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9077.851608][ T253] ip6_route_add+0x1c/0x140 [ 9077.851608][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9077.851608][ T253] addrconf_add_dev+0xe2/0x170 [ 9077.851608][ T253] inet6_addr_add+0x12f/0xa40 [ 9077.851608][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9077.851608][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9077.851608][ T253] netlink_rcv_skb+0x130/0x360 [ 9077.851608][ T253] netlink_unicast+0x449/0x710 [ 9077.851608][ T253] netlink_sendmsg+0x723/0xbe0 [ 9077.851608][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9077.851608][ T253] ___sys_sendmsg+0xee/0x170 [ 9077.851608][ T253] __sys_sendmsg+0xcd/0x170 [ 9077.851608][ T253] do_syscall_64+0xc6/0x1e0 [ 9077.851608][ T253] [ 9077.853809][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9077.853809][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9077.853809][ T253] ipv6_find_idev+0x102/0x170 [ 9077.853809][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9077.853809][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9077.853809][ T253] netlink_rcv_skb+0x130/0x360 [ 9077.853809][ T253] netlink_unicast+0x449/0x710 [ 9077.853809][ T253] netlink_sendmsg+0x723/0xbe0 [ 9077.853809][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9077.853809][ T253] ___sys_sendmsg+0xee/0x170 [ 9077.853809][ T253] __sys_sendmsg+0xcd/0x170 [ 9077.853809][ T253] do_syscall_64+0xc6/0x1e0 [ 9077.853809][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9077.853809][ T253] [ 9077.855529][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9077.855529][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9077.855529][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9077.855529][ T253] ipv6_find_idev+0x102/0x170 [ 9077.855529][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9077.855529][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9077.855529][ T253] netlink_rcv_skb+0x130/0x360 [ 9077.855529][ T253] netlink_unicast+0x449/0x710 [ 9077.855529][ T253] netlink_sendmsg+0x723/0xbe0 [ 9077.855529][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9077.855529][ T253] ___sys_sendmsg+0xee/0x170 [ 9077.855529][ T253] __sys_sendmsg+0xcd/0x170 [ 9077.855529][ T253] do_syscall_64+0xc6/0x1e0 [ 9077.855529][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9077.855529][ T253] [ 9088.098327][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9088.098735][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9088.098735][ T253] dst_init+0x84/0x4a0 [ 9088.098735][ T253] dst_alloc+0x97/0x150 [ 9088.098735][ T253] ip6_dst_alloc+0x23/0x90 [ 9088.098735][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9088.098735][ T253] ip6_pol_route+0x56f/0x840 [ 9088.098735][ T253] fib6_rule_lookup+0x334/0x630 [ 9088.098735][ T253] ip6_route_output_flags+0x259/0x480 [ 9088.098735][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9088.098735][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9088.098735][ T253] netlink_rcv_skb+0x130/0x360 [ 9088.098735][ T253] netlink_unicast+0x449/0x710 [ 9088.098735][ T253] netlink_sendmsg+0x723/0xbe0 [ 9088.098735][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9088.098735][ T253] ___sys_sendmsg+0xee/0x170 [ 9088.098735][ T253] __sys_sendmsg+0xcd/0x170 [ 9088.098735][ T253] do_syscall_64+0xc6/0x1e0 [ 9088.098735][ T253] [ 9088.100929][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9088.100929][ T253] netdev_get_by_index+0x5e/0x80 [ 9088.100929][ T253] fib6_nh_init+0x3d8/0x1580 [ 9088.100929][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9088.100929][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9088.100929][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9088.100929][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9088.100929][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9088.100929][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9088.100929][ T253] addrconf_dad_begin+0x310/0x670 [ 9088.100929][ T253] addrconf_dad_work+0x10b/0xab0 [ 9088.100929][ T253] process_one_work+0x84d/0x18a0 [ 9088.100929][ T253] worker_thread+0x587/0xd30 [ 9088.100929][ T253] kthread+0x28a/0x350 [ 9088.100929][ T253] ret_from_fork+0x31/0x70 [ 9088.100929][ T253] ret_from_fork_asm+0x1a/0x30 [ 9088.100929][ T253] [ 9088.103070][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9088.103070][ T253] netdev_get_by_index+0x5e/0x80 [ 9088.103070][ T253] fib6_nh_init+0x3d8/0x1580 [ 9088.103070][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9088.103070][ T253] ip6_route_add+0x1c/0x140 [ 9088.103070][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9088.103070][ T253] inet6_addr_add+0x4f8/0xa40 [ 9088.103070][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9088.103070][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9088.103070][ T253] netlink_rcv_skb+0x130/0x360 [ 9088.103070][ T253] netlink_unicast+0x449/0x710 [ 9088.103070][ T253] netlink_sendmsg+0x723/0xbe0 [ 9088.103070][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9088.103070][ T253] ___sys_sendmsg+0xee/0x170 [ 9088.103070][ T253] __sys_sendmsg+0xcd/0x170 [ 9088.103070][ T253] do_syscall_64+0xc6/0x1e0 [ 9088.103070][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9088.103070][ T253] [ 9088.105306][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9088.105306][ T253] netdev_get_by_index+0x5e/0x80 [ 9088.105306][ T253] fib6_nh_init+0x3d8/0x1580 [ 9088.105306][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9088.105306][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9088.105306][ T253] ipv6_add_addr+0x411/0x2000 [ 9088.105306][ T253] inet6_addr_add+0x30e/0xa40 [ 9088.105306][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9088.105306][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9088.105306][ T253] netlink_rcv_skb+0x130/0x360 [ 9088.105306][ T253] netlink_unicast+0x449/0x710 [ 9088.105306][ T253] netlink_sendmsg+0x723/0xbe0 [ 9088.105306][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9088.105306][ T253] ___sys_sendmsg+0xee/0x170 [ 9088.105306][ T253] __sys_sendmsg+0xcd/0x170 [ 9088.105306][ T253] do_syscall_64+0xc6/0x1e0 [ 9088.105306][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9088.105306][ T253] [ 9088.107544][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9088.107544][ T253] netdev_get_by_index+0x5e/0x80 [ 9088.107544][ T253] fib6_nh_init+0x3d8/0x1580 [ 9088.107544][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9088.107544][ T253] ip6_route_add+0x1c/0x140 [ 9088.107544][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9088.107544][ T253] addrconf_add_dev+0xe2/0x170 [ 9088.107544][ T253] inet6_addr_add+0x12f/0xa40 [ 9088.107544][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9088.107544][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9088.107544][ T253] netlink_rcv_skb+0x130/0x360 [ 9088.107544][ T253] netlink_unicast+0x449/0x710 [ 9088.107544][ T253] netlink_sendmsg+0x723/0xbe0 [ 9088.107544][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9088.107544][ T253] ___sys_sendmsg+0xee/0x170 [ 9088.107544][ T253] __sys_sendmsg+0xcd/0x170 [ 9088.107544][ T253] do_syscall_64+0xc6/0x1e0 [ 9088.107544][ T253] [ 9088.109774][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9088.109774][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9088.109774][ T253] ipv6_find_idev+0x102/0x170 [ 9088.109774][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9088.109774][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9088.109774][ T253] netlink_rcv_skb+0x130/0x360 [ 9088.109774][ T253] netlink_unicast+0x449/0x710 [ 9088.109774][ T253] netlink_sendmsg+0x723/0xbe0 [ 9088.109774][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9088.109774][ T253] ___sys_sendmsg+0xee/0x170 [ 9088.109774][ T253] __sys_sendmsg+0xcd/0x170 [ 9088.109774][ T253] do_syscall_64+0xc6/0x1e0 [ 9088.109774][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9088.109774][ T253] [ 9088.111629][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9088.111629][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9088.111629][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9088.111629][ T253] ipv6_find_idev+0x102/0x170 [ 9088.111629][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9088.111629][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9088.111629][ T253] netlink_rcv_skb+0x130/0x360 [ 9088.111629][ T253] netlink_unicast+0x449/0x710 [ 9088.111629][ T253] netlink_sendmsg+0x723/0xbe0 [ 9088.111629][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9088.111629][ T253] ___sys_sendmsg+0xee/0x170 [ 9088.111629][ T253] __sys_sendmsg+0xcd/0x170 [ 9088.111629][ T253] do_syscall_64+0xc6/0x1e0 [ 9088.111629][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9088.111629][ T253] [ 9098.290310][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9098.290742][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9098.290742][ T253] dst_init+0x84/0x4a0 [ 9098.290742][ T253] dst_alloc+0x97/0x150 [ 9098.290742][ T253] ip6_dst_alloc+0x23/0x90 [ 9098.290742][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9098.290742][ T253] ip6_pol_route+0x56f/0x840 [ 9098.290742][ T253] fib6_rule_lookup+0x334/0x630 [ 9098.290742][ T253] ip6_route_output_flags+0x259/0x480 [ 9098.290742][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9098.290742][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9098.290742][ T253] netlink_rcv_skb+0x130/0x360 [ 9098.290742][ T253] netlink_unicast+0x449/0x710 [ 9098.290742][ T253] netlink_sendmsg+0x723/0xbe0 [ 9098.290742][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9098.290742][ T253] ___sys_sendmsg+0xee/0x170 [ 9098.290742][ T253] __sys_sendmsg+0xcd/0x170 [ 9098.290742][ T253] do_syscall_64+0xc6/0x1e0 [ 9098.290742][ T253] [ 9098.292953][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9098.292953][ T253] netdev_get_by_index+0x5e/0x80 [ 9098.292953][ T253] fib6_nh_init+0x3d8/0x1580 [ 9098.292953][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9098.292953][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9098.292953][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9098.292953][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9098.292953][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9098.292953][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9098.292953][ T253] addrconf_dad_begin+0x310/0x670 [ 9098.292953][ T253] addrconf_dad_work+0x10b/0xab0 [ 9098.292953][ T253] process_one_work+0x84d/0x18a0 [ 9098.292953][ T253] worker_thread+0x587/0xd30 [ 9098.292953][ T253] kthread+0x28a/0x350 [ 9098.292953][ T253] ret_from_fork+0x31/0x70 [ 9098.292953][ T253] ret_from_fork_asm+0x1a/0x30 [ 9098.292953][ T253] [ 9098.295145][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9098.295145][ T253] netdev_get_by_index+0x5e/0x80 [ 9098.295145][ T253] fib6_nh_init+0x3d8/0x1580 [ 9098.295145][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9098.295145][ T253] ip6_route_add+0x1c/0x140 [ 9098.295145][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9098.295145][ T253] inet6_addr_add+0x4f8/0xa40 [ 9098.295145][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9098.295145][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9098.295145][ T253] netlink_rcv_skb+0x130/0x360 [ 9098.295145][ T253] netlink_unicast+0x449/0x710 [ 9098.295145][ T253] netlink_sendmsg+0x723/0xbe0 [ 9098.295145][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9098.295145][ T253] ___sys_sendmsg+0xee/0x170 [ 9098.295145][ T253] __sys_sendmsg+0xcd/0x170 [ 9098.295145][ T253] do_syscall_64+0xc6/0x1e0 [ 9098.295145][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9098.295145][ T253] [ 9098.297405][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9098.297405][ T253] netdev_get_by_index+0x5e/0x80 [ 9098.297405][ T253] fib6_nh_init+0x3d8/0x1580 [ 9098.297405][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9098.297405][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9098.297405][ T253] ipv6_add_addr+0x411/0x2000 [ 9098.297405][ T253] inet6_addr_add+0x30e/0xa40 [ 9098.297405][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9098.297405][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9098.297405][ T253] netlink_rcv_skb+0x130/0x360 [ 9098.297405][ T253] netlink_unicast+0x449/0x710 [ 9098.297405][ T253] netlink_sendmsg+0x723/0xbe0 [ 9098.297405][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9098.297405][ T253] ___sys_sendmsg+0xee/0x170 [ 9098.297405][ T253] __sys_sendmsg+0xcd/0x170 [ 9098.297405][ T253] do_syscall_64+0xc6/0x1e0 [ 9098.297405][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9098.297405][ T253] [ 9098.299680][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9098.299680][ T253] netdev_get_by_index+0x5e/0x80 [ 9098.299680][ T253] fib6_nh_init+0x3d8/0x1580 [ 9098.299680][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9098.299680][ T253] ip6_route_add+0x1c/0x140 [ 9098.299680][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9098.299680][ T253] addrconf_add_dev+0xe2/0x170 [ 9098.299680][ T253] inet6_addr_add+0x12f/0xa40 [ 9098.299680][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9098.299680][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9098.299680][ T253] netlink_rcv_skb+0x130/0x360 [ 9098.299680][ T253] netlink_unicast+0x449/0x710 [ 9098.299680][ T253] netlink_sendmsg+0x723/0xbe0 [ 9098.299680][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9098.299680][ T253] ___sys_sendmsg+0xee/0x170 [ 9098.299680][ T253] __sys_sendmsg+0xcd/0x170 [ 9098.299680][ T253] do_syscall_64+0xc6/0x1e0 [ 9098.299680][ T253] [ 9098.301898][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9098.301898][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9098.301898][ T253] ipv6_find_idev+0x102/0x170 [ 9098.301898][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9098.301898][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9098.301898][ T253] netlink_rcv_skb+0x130/0x360 [ 9098.301898][ T253] netlink_unicast+0x449/0x710 [ 9098.301898][ T253] netlink_sendmsg+0x723/0xbe0 [ 9098.301898][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9098.301898][ T253] ___sys_sendmsg+0xee/0x170 [ 9098.301898][ T253] __sys_sendmsg+0xcd/0x170 [ 9098.301898][ T253] do_syscall_64+0xc6/0x1e0 [ 9098.301898][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9098.301898][ T253] [ 9098.303635][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9098.303635][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9098.303635][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9098.303635][ T253] ipv6_find_idev+0x102/0x170 [ 9098.303635][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9098.303635][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9098.303635][ T253] netlink_rcv_skb+0x130/0x360 [ 9098.303635][ T253] netlink_unicast+0x449/0x710 [ 9098.303635][ T253] netlink_sendmsg+0x723/0xbe0 [ 9098.303635][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9098.303635][ T253] ___sys_sendmsg+0xee/0x170 [ 9098.303635][ T253] __sys_sendmsg+0xcd/0x170 [ 9098.303635][ T253] do_syscall_64+0xc6/0x1e0 [ 9098.303635][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9098.303635][ T253] [ 9108.546295][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9108.546727][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9108.546727][ T253] dst_init+0x84/0x4a0 [ 9108.546727][ T253] dst_alloc+0x97/0x150 [ 9108.546727][ T253] ip6_dst_alloc+0x23/0x90 [ 9108.546727][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9108.546727][ T253] ip6_pol_route+0x56f/0x840 [ 9108.546727][ T253] fib6_rule_lookup+0x334/0x630 [ 9108.546727][ T253] ip6_route_output_flags+0x259/0x480 [ 9108.546727][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9108.546727][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9108.546727][ T253] netlink_rcv_skb+0x130/0x360 [ 9108.546727][ T253] netlink_unicast+0x449/0x710 [ 9108.546727][ T253] netlink_sendmsg+0x723/0xbe0 [ 9108.546727][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9108.546727][ T253] ___sys_sendmsg+0xee/0x170 [ 9108.546727][ T253] __sys_sendmsg+0xcd/0x170 [ 9108.546727][ T253] do_syscall_64+0xc6/0x1e0 [ 9108.546727][ T253] [ 9108.548954][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9108.548954][ T253] netdev_get_by_index+0x5e/0x80 [ 9108.548954][ T253] fib6_nh_init+0x3d8/0x1580 [ 9108.548954][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9108.548954][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9108.548954][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9108.548954][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9108.548954][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9108.548954][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9108.548954][ T253] addrconf_dad_begin+0x310/0x670 [ 9108.548954][ T253] addrconf_dad_work+0x10b/0xab0 [ 9108.548954][ T253] process_one_work+0x84d/0x18a0 [ 9108.548954][ T253] worker_thread+0x587/0xd30 [ 9108.548954][ T253] kthread+0x28a/0x350 [ 9108.548954][ T253] ret_from_fork+0x31/0x70 [ 9108.548954][ T253] ret_from_fork_asm+0x1a/0x30 [ 9108.548954][ T253] [ 9108.551119][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9108.551119][ T253] netdev_get_by_index+0x5e/0x80 [ 9108.551119][ T253] fib6_nh_init+0x3d8/0x1580 [ 9108.551119][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9108.551119][ T253] ip6_route_add+0x1c/0x140 [ 9108.551119][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9108.551119][ T253] inet6_addr_add+0x4f8/0xa40 [ 9108.551119][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9108.551119][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9108.551119][ T253] netlink_rcv_skb+0x130/0x360 [ 9108.551119][ T253] netlink_unicast+0x449/0x710 [ 9108.551119][ T253] netlink_sendmsg+0x723/0xbe0 [ 9108.551119][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9108.551119][ T253] ___sys_sendmsg+0xee/0x170 [ 9108.551119][ T253] __sys_sendmsg+0xcd/0x170 [ 9108.551119][ T253] do_syscall_64+0xc6/0x1e0 [ 9108.551119][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9108.551119][ T253] [ 9108.553374][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9108.553374][ T253] netdev_get_by_index+0x5e/0x80 [ 9108.553374][ T253] fib6_nh_init+0x3d8/0x1580 [ 9108.553374][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9108.553374][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9108.553374][ T253] ipv6_add_addr+0x411/0x2000 [ 9108.553374][ T253] inet6_addr_add+0x30e/0xa40 [ 9108.553374][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9108.553374][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9108.553374][ T253] netlink_rcv_skb+0x130/0x360 [ 9108.553374][ T253] netlink_unicast+0x449/0x710 [ 9108.553374][ T253] netlink_sendmsg+0x723/0xbe0 [ 9108.553374][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9108.553374][ T253] ___sys_sendmsg+0xee/0x170 [ 9108.553374][ T253] __sys_sendmsg+0xcd/0x170 [ 9108.553374][ T253] do_syscall_64+0xc6/0x1e0 [ 9108.553374][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9108.553374][ T253] [ 9108.555643][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9108.555643][ T253] netdev_get_by_index+0x5e/0x80 [ 9108.555643][ T253] fib6_nh_init+0x3d8/0x1580 [ 9108.555643][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9108.555643][ T253] ip6_route_add+0x1c/0x140 [ 9108.555643][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9108.555643][ T253] addrconf_add_dev+0xe2/0x170 [ 9108.555643][ T253] inet6_addr_add+0x12f/0xa40 [ 9108.555643][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9108.555643][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9108.555643][ T253] netlink_rcv_skb+0x130/0x360 [ 9108.555643][ T253] netlink_unicast+0x449/0x710 [ 9108.555643][ T253] netlink_sendmsg+0x723/0xbe0 [ 9108.555643][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9108.555643][ T253] ___sys_sendmsg+0xee/0x170 [ 9108.555643][ T253] __sys_sendmsg+0xcd/0x170 [ 9108.555643][ T253] do_syscall_64+0xc6/0x1e0 [ 9108.555643][ T253] [ 9108.557860][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9108.557860][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9108.557860][ T253] ipv6_find_idev+0x102/0x170 [ 9108.557860][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9108.557860][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9108.557860][ T253] netlink_rcv_skb+0x130/0x360 [ 9108.557860][ T253] netlink_unicast+0x449/0x710 [ 9108.557860][ T253] netlink_sendmsg+0x723/0xbe0 [ 9108.557860][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9108.557860][ T253] ___sys_sendmsg+0xee/0x170 [ 9108.557860][ T253] __sys_sendmsg+0xcd/0x170 [ 9108.557860][ T253] do_syscall_64+0xc6/0x1e0 [ 9108.557860][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9108.557860][ T253] [ 9108.559603][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9108.559603][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9108.559603][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9108.559603][ T253] ipv6_find_idev+0x102/0x170 [ 9108.559603][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9108.559603][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9108.559603][ T253] netlink_rcv_skb+0x130/0x360 [ 9108.559603][ T253] netlink_unicast+0x449/0x710 [ 9108.559603][ T253] netlink_sendmsg+0x723/0xbe0 [ 9108.559603][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9108.559603][ T253] ___sys_sendmsg+0xee/0x170 [ 9108.559603][ T253] __sys_sendmsg+0xcd/0x170 [ 9108.559603][ T253] do_syscall_64+0xc6/0x1e0 [ 9108.559603][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9108.559603][ T253] [ 9118.802389][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9118.802820][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9118.802820][ T253] dst_init+0x84/0x4a0 [ 9118.802820][ T253] dst_alloc+0x97/0x150 [ 9118.802820][ T253] ip6_dst_alloc+0x23/0x90 [ 9118.802820][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9118.802820][ T253] ip6_pol_route+0x56f/0x840 [ 9118.802820][ T253] fib6_rule_lookup+0x334/0x630 [ 9118.802820][ T253] ip6_route_output_flags+0x259/0x480 [ 9118.802820][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9118.802820][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9118.802820][ T253] netlink_rcv_skb+0x130/0x360 [ 9118.802820][ T253] netlink_unicast+0x449/0x710 [ 9118.802820][ T253] netlink_sendmsg+0x723/0xbe0 [ 9118.802820][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9118.802820][ T253] ___sys_sendmsg+0xee/0x170 [ 9118.802820][ T253] __sys_sendmsg+0xcd/0x170 [ 9118.802820][ T253] do_syscall_64+0xc6/0x1e0 [ 9118.802820][ T253] [ 9118.805021][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9118.805021][ T253] netdev_get_by_index+0x5e/0x80 [ 9118.805021][ T253] fib6_nh_init+0x3d8/0x1580 [ 9118.805021][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9118.805021][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9118.805021][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9118.805021][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9118.805021][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9118.805021][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9118.805021][ T253] addrconf_dad_begin+0x310/0x670 [ 9118.805021][ T253] addrconf_dad_work+0x10b/0xab0 [ 9118.805021][ T253] process_one_work+0x84d/0x18a0 [ 9118.805021][ T253] worker_thread+0x587/0xd30 [ 9118.805021][ T253] kthread+0x28a/0x350 [ 9118.805021][ T253] ret_from_fork+0x31/0x70 [ 9118.805021][ T253] ret_from_fork_asm+0x1a/0x30 [ 9118.805021][ T253] [ 9118.807167][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9118.807167][ T253] netdev_get_by_index+0x5e/0x80 [ 9118.807167][ T253] fib6_nh_init+0x3d8/0x1580 [ 9118.807167][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9118.807167][ T253] ip6_route_add+0x1c/0x140 [ 9118.807167][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9118.807167][ T253] inet6_addr_add+0x4f8/0xa40 [ 9118.807167][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9118.807167][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9118.807167][ T253] netlink_rcv_skb+0x130/0x360 [ 9118.807167][ T253] netlink_unicast+0x449/0x710 [ 9118.807167][ T253] netlink_sendmsg+0x723/0xbe0 [ 9118.807167][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9118.807167][ T253] ___sys_sendmsg+0xee/0x170 [ 9118.807167][ T253] __sys_sendmsg+0xcd/0x170 [ 9118.807167][ T253] do_syscall_64+0xc6/0x1e0 [ 9118.807167][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9118.807167][ T253] [ 9118.809429][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9118.809429][ T253] netdev_get_by_index+0x5e/0x80 [ 9118.809429][ T253] fib6_nh_init+0x3d8/0x1580 [ 9118.809429][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9118.809429][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9118.809429][ T253] ipv6_add_addr+0x411/0x2000 [ 9118.809429][ T253] inet6_addr_add+0x30e/0xa40 [ 9118.809429][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9118.809429][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9118.809429][ T253] netlink_rcv_skb+0x130/0x360 [ 9118.809429][ T253] netlink_unicast+0x449/0x710 [ 9118.809429][ T253] netlink_sendmsg+0x723/0xbe0 [ 9118.809429][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9118.809429][ T253] ___sys_sendmsg+0xee/0x170 [ 9118.809429][ T253] __sys_sendmsg+0xcd/0x170 [ 9118.809429][ T253] do_syscall_64+0xc6/0x1e0 [ 9118.809429][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9118.809429][ T253] [ 9118.811676][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9118.811676][ T253] netdev_get_by_index+0x5e/0x80 [ 9118.811676][ T253] fib6_nh_init+0x3d8/0x1580 [ 9118.811676][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9118.811676][ T253] ip6_route_add+0x1c/0x140 [ 9118.811676][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9118.811676][ T253] addrconf_add_dev+0xe2/0x170 [ 9118.811676][ T253] inet6_addr_add+0x12f/0xa40 [ 9118.811676][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9118.811676][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9118.811676][ T253] netlink_rcv_skb+0x130/0x360 [ 9118.811676][ T253] netlink_unicast+0x449/0x710 [ 9118.811676][ T253] netlink_sendmsg+0x723/0xbe0 [ 9118.811676][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9118.811676][ T253] ___sys_sendmsg+0xee/0x170 [ 9118.811676][ T253] __sys_sendmsg+0xcd/0x170 [ 9118.811676][ T253] do_syscall_64+0xc6/0x1e0 [ 9118.811676][ T253] [ 9118.813880][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9118.813880][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9118.813880][ T253] ipv6_find_idev+0x102/0x170 [ 9118.813880][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9118.813880][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9118.813880][ T253] netlink_rcv_skb+0x130/0x360 [ 9118.813880][ T253] netlink_unicast+0x449/0x710 [ 9118.813880][ T253] netlink_sendmsg+0x723/0xbe0 [ 9118.813880][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9118.813880][ T253] ___sys_sendmsg+0xee/0x170 [ 9118.813880][ T253] __sys_sendmsg+0xcd/0x170 [ 9118.813880][ T253] do_syscall_64+0xc6/0x1e0 [ 9118.813880][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9118.813880][ T253] [ 9118.815622][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9118.815622][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9118.815622][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9118.815622][ T253] ipv6_find_idev+0x102/0x170 [ 9118.815622][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9118.815622][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9118.815622][ T253] netlink_rcv_skb+0x130/0x360 [ 9118.815622][ T253] netlink_unicast+0x449/0x710 [ 9118.815622][ T253] netlink_sendmsg+0x723/0xbe0 [ 9118.815622][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9118.815622][ T253] ___sys_sendmsg+0xee/0x170 [ 9118.815622][ T253] __sys_sendmsg+0xcd/0x170 [ 9118.815622][ T253] do_syscall_64+0xc6/0x1e0 [ 9118.815622][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9118.815622][ T253] [ 9129.058238][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9129.058648][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9129.058648][ T253] dst_init+0x84/0x4a0 [ 9129.058648][ T253] dst_alloc+0x97/0x150 [ 9129.058648][ T253] ip6_dst_alloc+0x23/0x90 [ 9129.058648][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9129.058648][ T253] ip6_pol_route+0x56f/0x840 [ 9129.058648][ T253] fib6_rule_lookup+0x334/0x630 [ 9129.058648][ T253] ip6_route_output_flags+0x259/0x480 [ 9129.058648][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9129.058648][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9129.058648][ T253] netlink_rcv_skb+0x130/0x360 [ 9129.058648][ T253] netlink_unicast+0x449/0x710 [ 9129.058648][ T253] netlink_sendmsg+0x723/0xbe0 [ 9129.058648][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9129.058648][ T253] ___sys_sendmsg+0xee/0x170 [ 9129.058648][ T253] __sys_sendmsg+0xcd/0x170 [ 9129.058648][ T253] do_syscall_64+0xc6/0x1e0 [ 9129.058648][ T253] [ 9129.060846][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9129.060846][ T253] netdev_get_by_index+0x5e/0x80 [ 9129.060846][ T253] fib6_nh_init+0x3d8/0x1580 [ 9129.060846][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9129.060846][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9129.060846][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9129.060846][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9129.060846][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9129.060846][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9129.060846][ T253] addrconf_dad_begin+0x310/0x670 [ 9129.060846][ T253] addrconf_dad_work+0x10b/0xab0 [ 9129.060846][ T253] process_one_work+0x84d/0x18a0 [ 9129.060846][ T253] worker_thread+0x587/0xd30 [ 9129.060846][ T253] kthread+0x28a/0x350 [ 9129.060846][ T253] ret_from_fork+0x31/0x70 [ 9129.060846][ T253] ret_from_fork_asm+0x1a/0x30 [ 9129.060846][ T253] [ 9129.063000][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9129.063000][ T253] netdev_get_by_index+0x5e/0x80 [ 9129.063000][ T253] fib6_nh_init+0x3d8/0x1580 [ 9129.063000][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9129.063000][ T253] ip6_route_add+0x1c/0x140 [ 9129.063000][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9129.063000][ T253] inet6_addr_add+0x4f8/0xa40 [ 9129.063000][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9129.063000][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9129.063000][ T253] netlink_rcv_skb+0x130/0x360 [ 9129.063000][ T253] netlink_unicast+0x449/0x710 [ 9129.063000][ T253] netlink_sendmsg+0x723/0xbe0 [ 9129.063000][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9129.063000][ T253] ___sys_sendmsg+0xee/0x170 [ 9129.063000][ T253] __sys_sendmsg+0xcd/0x170 [ 9129.063000][ T253] do_syscall_64+0xc6/0x1e0 [ 9129.063000][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9129.063000][ T253] [ 9129.065254][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9129.065254][ T253] netdev_get_by_index+0x5e/0x80 [ 9129.065254][ T253] fib6_nh_init+0x3d8/0x1580 [ 9129.065254][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9129.065254][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9129.065254][ T253] ipv6_add_addr+0x411/0x2000 [ 9129.065254][ T253] inet6_addr_add+0x30e/0xa40 [ 9129.065254][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9129.065254][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9129.065254][ T253] netlink_rcv_skb+0x130/0x360 [ 9129.065254][ T253] netlink_unicast+0x449/0x710 [ 9129.065254][ T253] netlink_sendmsg+0x723/0xbe0 [ 9129.065254][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9129.065254][ T253] ___sys_sendmsg+0xee/0x170 [ 9129.065254][ T253] __sys_sendmsg+0xcd/0x170 [ 9129.065254][ T253] do_syscall_64+0xc6/0x1e0 [ 9129.065254][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9129.065254][ T253] [ 9129.067492][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9129.067492][ T253] netdev_get_by_index+0x5e/0x80 [ 9129.067492][ T253] fib6_nh_init+0x3d8/0x1580 [ 9129.067492][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9129.067492][ T253] ip6_route_add+0x1c/0x140 [ 9129.067492][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9129.067492][ T253] addrconf_add_dev+0xe2/0x170 [ 9129.067492][ T253] inet6_addr_add+0x12f/0xa40 [ 9129.067492][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9129.067492][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9129.067492][ T253] netlink_rcv_skb+0x130/0x360 [ 9129.067492][ T253] netlink_unicast+0x449/0x710 [ 9129.067492][ T253] netlink_sendmsg+0x723/0xbe0 [ 9129.067492][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9129.067492][ T253] ___sys_sendmsg+0xee/0x170 [ 9129.067492][ T253] __sys_sendmsg+0xcd/0x170 [ 9129.067492][ T253] do_syscall_64+0xc6/0x1e0 [ 9129.067492][ T253] [ 9129.069701][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9129.069701][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9129.069701][ T253] ipv6_find_idev+0x102/0x170 [ 9129.069701][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9129.069701][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9129.069701][ T253] netlink_rcv_skb+0x130/0x360 [ 9129.069701][ T253] netlink_unicast+0x449/0x710 [ 9129.069701][ T253] netlink_sendmsg+0x723/0xbe0 [ 9129.069701][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9129.069701][ T253] ___sys_sendmsg+0xee/0x170 [ 9129.069701][ T253] __sys_sendmsg+0xcd/0x170 [ 9129.069701][ T253] do_syscall_64+0xc6/0x1e0 [ 9129.069701][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9129.069701][ T253] [ 9129.071437][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9129.071437][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9129.071437][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9129.071437][ T253] ipv6_find_idev+0x102/0x170 [ 9129.071437][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9129.071437][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9129.071437][ T253] netlink_rcv_skb+0x130/0x360 [ 9129.071437][ T253] netlink_unicast+0x449/0x710 [ 9129.071437][ T253] netlink_sendmsg+0x723/0xbe0 [ 9129.071437][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9129.071437][ T253] ___sys_sendmsg+0xee/0x170 [ 9129.071437][ T253] __sys_sendmsg+0xcd/0x170 [ 9129.071437][ T253] do_syscall_64+0xc6/0x1e0 [ 9129.071437][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9129.071437][ T253] [ 9139.314312][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9139.314739][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9139.314739][ T253] dst_init+0x84/0x4a0 [ 9139.314739][ T253] dst_alloc+0x97/0x150 [ 9139.314739][ T253] ip6_dst_alloc+0x23/0x90 [ 9139.314739][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9139.314739][ T253] ip6_pol_route+0x56f/0x840 [ 9139.314739][ T253] fib6_rule_lookup+0x334/0x630 [ 9139.314739][ T253] ip6_route_output_flags+0x259/0x480 [ 9139.314739][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9139.314739][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9139.314739][ T253] netlink_rcv_skb+0x130/0x360 [ 9139.314739][ T253] netlink_unicast+0x449/0x710 [ 9139.314739][ T253] netlink_sendmsg+0x723/0xbe0 [ 9139.314739][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9139.314739][ T253] ___sys_sendmsg+0xee/0x170 [ 9139.314739][ T253] __sys_sendmsg+0xcd/0x170 [ 9139.314739][ T253] do_syscall_64+0xc6/0x1e0 [ 9139.314739][ T253] [ 9139.316929][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9139.316929][ T253] netdev_get_by_index+0x5e/0x80 [ 9139.316929][ T253] fib6_nh_init+0x3d8/0x1580 [ 9139.316929][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9139.316929][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9139.316929][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9139.316929][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9139.316929][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9139.316929][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9139.316929][ T253] addrconf_dad_begin+0x310/0x670 [ 9139.316929][ T253] addrconf_dad_work+0x10b/0xab0 [ 9139.316929][ T253] process_one_work+0x84d/0x18a0 [ 9139.316929][ T253] worker_thread+0x587/0xd30 [ 9139.316929][ T253] kthread+0x28a/0x350 [ 9139.316929][ T253] ret_from_fork+0x31/0x70 [ 9139.316929][ T253] ret_from_fork_asm+0x1a/0x30 [ 9139.316929][ T253] [ 9139.319098][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9139.319098][ T253] netdev_get_by_index+0x5e/0x80 [ 9139.319098][ T253] fib6_nh_init+0x3d8/0x1580 [ 9139.319098][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9139.319098][ T253] ip6_route_add+0x1c/0x140 [ 9139.319098][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9139.319098][ T253] inet6_addr_add+0x4f8/0xa40 [ 9139.319098][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9139.319098][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9139.319098][ T253] netlink_rcv_skb+0x130/0x360 [ 9139.319098][ T253] netlink_unicast+0x449/0x710 [ 9139.319098][ T253] netlink_sendmsg+0x723/0xbe0 [ 9139.319098][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9139.319098][ T253] ___sys_sendmsg+0xee/0x170 [ 9139.319098][ T253] __sys_sendmsg+0xcd/0x170 [ 9139.319098][ T253] do_syscall_64+0xc6/0x1e0 [ 9139.319098][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9139.319098][ T253] [ 9139.321338][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9139.321338][ T253] netdev_get_by_index+0x5e/0x80 [ 9139.321338][ T253] fib6_nh_init+0x3d8/0x1580 [ 9139.321338][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9139.321338][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9139.321338][ T253] ipv6_add_addr+0x411/0x2000 [ 9139.321338][ T253] inet6_addr_add+0x30e/0xa40 [ 9139.321338][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9139.321338][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9139.321338][ T253] netlink_rcv_skb+0x130/0x360 [ 9139.321338][ T253] netlink_unicast+0x449/0x710 [ 9139.321338][ T253] netlink_sendmsg+0x723/0xbe0 [ 9139.321338][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9139.321338][ T253] ___sys_sendmsg+0xee/0x170 [ 9139.321338][ T253] __sys_sendmsg+0xcd/0x170 [ 9139.321338][ T253] do_syscall_64+0xc6/0x1e0 [ 9139.321338][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9139.321338][ T253] [ 9139.323578][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9139.323578][ T253] netdev_get_by_index+0x5e/0x80 [ 9139.323578][ T253] fib6_nh_init+0x3d8/0x1580 [ 9139.323578][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9139.323578][ T253] ip6_route_add+0x1c/0x140 [ 9139.323578][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9139.323578][ T253] addrconf_add_dev+0xe2/0x170 [ 9139.323578][ T253] inet6_addr_add+0x12f/0xa40 [ 9139.323578][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9139.323578][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9139.323578][ T253] netlink_rcv_skb+0x130/0x360 [ 9139.323578][ T253] netlink_unicast+0x449/0x710 [ 9139.323578][ T253] netlink_sendmsg+0x723/0xbe0 [ 9139.323578][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9139.323578][ T253] ___sys_sendmsg+0xee/0x170 [ 9139.323578][ T253] __sys_sendmsg+0xcd/0x170 [ 9139.323578][ T253] do_syscall_64+0xc6/0x1e0 [ 9139.323578][ T253] [ 9139.325789][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9139.325789][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9139.325789][ T253] ipv6_find_idev+0x102/0x170 [ 9139.325789][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9139.325789][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9139.325789][ T253] netlink_rcv_skb+0x130/0x360 [ 9139.325789][ T253] netlink_unicast+0x449/0x710 [ 9139.325789][ T253] netlink_sendmsg+0x723/0xbe0 [ 9139.325789][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9139.325789][ T253] ___sys_sendmsg+0xee/0x170 [ 9139.325789][ T253] __sys_sendmsg+0xcd/0x170 [ 9139.325789][ T253] do_syscall_64+0xc6/0x1e0 [ 9139.325789][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9139.325789][ T253] [ 9139.327520][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9139.327520][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9139.327520][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9139.327520][ T253] ipv6_find_idev+0x102/0x170 [ 9139.327520][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9139.327520][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9139.327520][ T253] netlink_rcv_skb+0x130/0x360 [ 9139.327520][ T253] netlink_unicast+0x449/0x710 [ 9139.327520][ T253] netlink_sendmsg+0x723/0xbe0 [ 9139.327520][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9139.327520][ T253] ___sys_sendmsg+0xee/0x170 [ 9139.327520][ T253] __sys_sendmsg+0xcd/0x170 [ 9139.327520][ T253] do_syscall_64+0xc6/0x1e0 [ 9139.327520][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9139.327520][ T253] [ 9149.570237][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9149.570656][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9149.570656][ T253] dst_init+0x84/0x4a0 [ 9149.570656][ T253] dst_alloc+0x97/0x150 [ 9149.570656][ T253] ip6_dst_alloc+0x23/0x90 [ 9149.570656][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9149.570656][ T253] ip6_pol_route+0x56f/0x840 [ 9149.570656][ T253] fib6_rule_lookup+0x334/0x630 [ 9149.570656][ T253] ip6_route_output_flags+0x259/0x480 [ 9149.570656][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9149.570656][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9149.570656][ T253] netlink_rcv_skb+0x130/0x360 [ 9149.570656][ T253] netlink_unicast+0x449/0x710 [ 9149.570656][ T253] netlink_sendmsg+0x723/0xbe0 [ 9149.570656][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9149.570656][ T253] ___sys_sendmsg+0xee/0x170 [ 9149.570656][ T253] __sys_sendmsg+0xcd/0x170 [ 9149.570656][ T253] do_syscall_64+0xc6/0x1e0 [ 9149.570656][ T253] [ 9149.572846][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9149.572846][ T253] netdev_get_by_index+0x5e/0x80 [ 9149.572846][ T253] fib6_nh_init+0x3d8/0x1580 [ 9149.572846][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9149.572846][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9149.572846][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9149.572846][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9149.572846][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9149.572846][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9149.572846][ T253] addrconf_dad_begin+0x310/0x670 [ 9149.572846][ T253] addrconf_dad_work+0x10b/0xab0 [ 9149.572846][ T253] process_one_work+0x84d/0x18a0 [ 9149.572846][ T253] worker_thread+0x587/0xd30 [ 9149.572846][ T253] kthread+0x28a/0x350 [ 9149.572846][ T253] ret_from_fork+0x31/0x70 [ 9149.572846][ T253] ret_from_fork_asm+0x1a/0x30 [ 9149.572846][ T253] [ 9149.574986][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9149.574986][ T253] netdev_get_by_index+0x5e/0x80 [ 9149.574986][ T253] fib6_nh_init+0x3d8/0x1580 [ 9149.574986][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9149.574986][ T253] ip6_route_add+0x1c/0x140 [ 9149.574986][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9149.574986][ T253] inet6_addr_add+0x4f8/0xa40 [ 9149.574986][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9149.574986][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9149.574986][ T253] netlink_rcv_skb+0x130/0x360 [ 9149.574986][ T253] netlink_unicast+0x449/0x710 [ 9149.574986][ T253] netlink_sendmsg+0x723/0xbe0 [ 9149.574986][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9149.574986][ T253] ___sys_sendmsg+0xee/0x170 [ 9149.574986][ T253] __sys_sendmsg+0xcd/0x170 [ 9149.574986][ T253] do_syscall_64+0xc6/0x1e0 [ 9149.574986][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9149.574986][ T253] [ 9149.577230][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9149.577230][ T253] netdev_get_by_index+0x5e/0x80 [ 9149.577230][ T253] fib6_nh_init+0x3d8/0x1580 [ 9149.577230][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9149.577230][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9149.577230][ T253] ipv6_add_addr+0x411/0x2000 [ 9149.577230][ T253] inet6_addr_add+0x30e/0xa40 [ 9149.577230][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9149.577230][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9149.577230][ T253] netlink_rcv_skb+0x130/0x360 [ 9149.577230][ T253] netlink_unicast+0x449/0x710 [ 9149.577230][ T253] netlink_sendmsg+0x723/0xbe0 [ 9149.577230][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9149.577230][ T253] ___sys_sendmsg+0xee/0x170 [ 9149.577230][ T253] __sys_sendmsg+0xcd/0x170 [ 9149.577230][ T253] do_syscall_64+0xc6/0x1e0 [ 9149.577230][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9149.577230][ T253] [ 9149.579491][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9149.579491][ T253] netdev_get_by_index+0x5e/0x80 [ 9149.579491][ T253] fib6_nh_init+0x3d8/0x1580 [ 9149.579491][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9149.579491][ T253] ip6_route_add+0x1c/0x140 [ 9149.579491][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9149.579491][ T253] addrconf_add_dev+0xe2/0x170 [ 9149.579491][ T253] inet6_addr_add+0x12f/0xa40 [ 9149.579491][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9149.579491][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9149.579491][ T253] netlink_rcv_skb+0x130/0x360 [ 9149.579491][ T253] netlink_unicast+0x449/0x710 [ 9149.579491][ T253] netlink_sendmsg+0x723/0xbe0 [ 9149.579491][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9149.579491][ T253] ___sys_sendmsg+0xee/0x170 [ 9149.579491][ T253] __sys_sendmsg+0xcd/0x170 [ 9149.579491][ T253] do_syscall_64+0xc6/0x1e0 [ 9149.579491][ T253] [ 9149.581709][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9149.581709][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9149.581709][ T253] ipv6_find_idev+0x102/0x170 [ 9149.581709][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9149.581709][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9149.581709][ T253] netlink_rcv_skb+0x130/0x360 [ 9149.581709][ T253] netlink_unicast+0x449/0x710 [ 9149.581709][ T253] netlink_sendmsg+0x723/0xbe0 [ 9149.581709][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9149.581709][ T253] ___sys_sendmsg+0xee/0x170 [ 9149.581709][ T253] __sys_sendmsg+0xcd/0x170 [ 9149.581709][ T253] do_syscall_64+0xc6/0x1e0 [ 9149.581709][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9149.581709][ T253] [ 9149.583952][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9149.583952][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9149.583952][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9149.583952][ T253] ipv6_find_idev+0x102/0x170 [ 9149.583952][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9149.583952][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9149.583952][ T253] netlink_rcv_skb+0x130/0x360 [ 9149.583952][ T253] netlink_unicast+0x449/0x710 [ 9149.583952][ T253] netlink_sendmsg+0x723/0xbe0 [ 9149.583952][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9149.583952][ T253] ___sys_sendmsg+0xee/0x170 [ 9149.583952][ T253] __sys_sendmsg+0xcd/0x170 [ 9149.583952][ T253] do_syscall_64+0xc6/0x1e0 [ 9149.583952][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9149.583952][ T253] [ 9159.826306][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9159.826713][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9159.826713][ T253] dst_init+0x84/0x4a0 [ 9159.826713][ T253] dst_alloc+0x97/0x150 [ 9159.826713][ T253] ip6_dst_alloc+0x23/0x90 [ 9159.826713][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9159.826713][ T253] ip6_pol_route+0x56f/0x840 [ 9159.826713][ T253] fib6_rule_lookup+0x334/0x630 [ 9159.826713][ T253] ip6_route_output_flags+0x259/0x480 [ 9159.826713][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9159.826713][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9159.826713][ T253] netlink_rcv_skb+0x130/0x360 [ 9159.826713][ T253] netlink_unicast+0x449/0x710 [ 9159.826713][ T253] netlink_sendmsg+0x723/0xbe0 [ 9159.826713][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9159.826713][ T253] ___sys_sendmsg+0xee/0x170 [ 9159.826713][ T253] __sys_sendmsg+0xcd/0x170 [ 9159.826713][ T253] do_syscall_64+0xc6/0x1e0 [ 9159.826713][ T253] [ 9159.828932][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9159.828932][ T253] netdev_get_by_index+0x5e/0x80 [ 9159.828932][ T253] fib6_nh_init+0x3d8/0x1580 [ 9159.828932][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9159.828932][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9159.828932][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9159.828932][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9159.828932][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9159.828932][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9159.828932][ T253] addrconf_dad_begin+0x310/0x670 [ 9159.828932][ T253] addrconf_dad_work+0x10b/0xab0 [ 9159.828932][ T253] process_one_work+0x84d/0x18a0 [ 9159.828932][ T253] worker_thread+0x587/0xd30 [ 9159.828932][ T253] kthread+0x28a/0x350 [ 9159.828932][ T253] ret_from_fork+0x31/0x70 [ 9159.828932][ T253] ret_from_fork_asm+0x1a/0x30 [ 9159.828932][ T253] [ 9159.831093][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9159.831093][ T253] netdev_get_by_index+0x5e/0x80 [ 9159.831093][ T253] fib6_nh_init+0x3d8/0x1580 [ 9159.831093][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9159.831093][ T253] ip6_route_add+0x1c/0x140 [ 9159.831093][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9159.831093][ T253] inet6_addr_add+0x4f8/0xa40 [ 9159.831093][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9159.831093][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9159.831093][ T253] netlink_rcv_skb+0x130/0x360 [ 9159.831093][ T253] netlink_unicast+0x449/0x710 [ 9159.831093][ T253] netlink_sendmsg+0x723/0xbe0 [ 9159.831093][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9159.831093][ T253] ___sys_sendmsg+0xee/0x170 [ 9159.831093][ T253] __sys_sendmsg+0xcd/0x170 [ 9159.831093][ T253] do_syscall_64+0xc6/0x1e0 [ 9159.831093][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9159.831093][ T253] [ 9159.833340][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9159.833340][ T253] netdev_get_by_index+0x5e/0x80 [ 9159.833340][ T253] fib6_nh_init+0x3d8/0x1580 [ 9159.833340][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9159.833340][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9159.833340][ T253] ipv6_add_addr+0x411/0x2000 [ 9159.833340][ T253] inet6_addr_add+0x30e/0xa40 [ 9159.833340][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9159.833340][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9159.833340][ T253] netlink_rcv_skb+0x130/0x360 [ 9159.833340][ T253] netlink_unicast+0x449/0x710 [ 9159.833340][ T253] netlink_sendmsg+0x723/0xbe0 [ 9159.833340][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9159.833340][ T253] ___sys_sendmsg+0xee/0x170 [ 9159.833340][ T253] __sys_sendmsg+0xcd/0x170 [ 9159.833340][ T253] do_syscall_64+0xc6/0x1e0 [ 9159.833340][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9159.833340][ T253] [ 9159.835575][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9159.835575][ T253] netdev_get_by_index+0x5e/0x80 [ 9159.835575][ T253] fib6_nh_init+0x3d8/0x1580 [ 9159.835575][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9159.835575][ T253] ip6_route_add+0x1c/0x140 [ 9159.835575][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9159.835575][ T253] addrconf_add_dev+0xe2/0x170 [ 9159.835575][ T253] inet6_addr_add+0x12f/0xa40 [ 9159.835575][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9159.835575][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9159.835575][ T253] netlink_rcv_skb+0x130/0x360 [ 9159.835575][ T253] netlink_unicast+0x449/0x710 [ 9159.835575][ T253] netlink_sendmsg+0x723/0xbe0 [ 9159.835575][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9159.835575][ T253] ___sys_sendmsg+0xee/0x170 [ 9159.835575][ T253] __sys_sendmsg+0xcd/0x170 [ 9159.835575][ T253] do_syscall_64+0xc6/0x1e0 [ 9159.835575][ T253] [ 9159.837783][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9159.837783][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9159.837783][ T253] ipv6_find_idev+0x102/0x170 [ 9159.837783][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9159.837783][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9159.837783][ T253] netlink_rcv_skb+0x130/0x360 [ 9159.837783][ T253] netlink_unicast+0x449/0x710 [ 9159.837783][ T253] netlink_sendmsg+0x723/0xbe0 [ 9159.837783][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9159.837783][ T253] ___sys_sendmsg+0xee/0x170 [ 9159.837783][ T253] __sys_sendmsg+0xcd/0x170 [ 9159.837783][ T253] do_syscall_64+0xc6/0x1e0 [ 9159.837783][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9159.837783][ T253] [ 9159.839507][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9159.839507][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9159.839507][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9159.839507][ T253] ipv6_find_idev+0x102/0x170 [ 9159.839507][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9159.839507][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9159.839507][ T253] netlink_rcv_skb+0x130/0x360 [ 9159.839507][ T253] netlink_unicast+0x449/0x710 [ 9159.839507][ T253] netlink_sendmsg+0x723/0xbe0 [ 9159.839507][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9159.839507][ T253] ___sys_sendmsg+0xee/0x170 [ 9159.839507][ T253] __sys_sendmsg+0xcd/0x170 [ 9159.839507][ T253] do_syscall_64+0xc6/0x1e0 [ 9159.839507][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9159.839507][ T253] [ 9170.082299][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9170.082713][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9170.082713][ T253] dst_init+0x84/0x4a0 [ 9170.082713][ T253] dst_alloc+0x97/0x150 [ 9170.082713][ T253] ip6_dst_alloc+0x23/0x90 [ 9170.082713][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9170.082713][ T253] ip6_pol_route+0x56f/0x840 [ 9170.082713][ T253] fib6_rule_lookup+0x334/0x630 [ 9170.082713][ T253] ip6_route_output_flags+0x259/0x480 [ 9170.082713][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9170.082713][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9170.082713][ T253] netlink_rcv_skb+0x130/0x360 [ 9170.082713][ T253] netlink_unicast+0x449/0x710 [ 9170.082713][ T253] netlink_sendmsg+0x723/0xbe0 [ 9170.082713][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9170.082713][ T253] ___sys_sendmsg+0xee/0x170 [ 9170.082713][ T253] __sys_sendmsg+0xcd/0x170 [ 9170.082713][ T253] do_syscall_64+0xc6/0x1e0 [ 9170.082713][ T253] [ 9170.084908][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9170.084908][ T253] netdev_get_by_index+0x5e/0x80 [ 9170.084908][ T253] fib6_nh_init+0x3d8/0x1580 [ 9170.084908][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9170.084908][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9170.084908][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9170.084908][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9170.084908][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9170.084908][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9170.084908][ T253] addrconf_dad_begin+0x310/0x670 [ 9170.084908][ T253] addrconf_dad_work+0x10b/0xab0 [ 9170.084908][ T253] process_one_work+0x84d/0x18a0 [ 9170.084908][ T253] worker_thread+0x587/0xd30 [ 9170.084908][ T253] kthread+0x28a/0x350 [ 9170.084908][ T253] ret_from_fork+0x31/0x70 [ 9170.084908][ T253] ret_from_fork_asm+0x1a/0x30 [ 9170.084908][ T253] [ 9170.087201][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9170.087201][ T253] netdev_get_by_index+0x5e/0x80 [ 9170.087201][ T253] fib6_nh_init+0x3d8/0x1580 [ 9170.087201][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9170.087201][ T253] ip6_route_add+0x1c/0x140 [ 9170.087201][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9170.087201][ T253] inet6_addr_add+0x4f8/0xa40 [ 9170.087201][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9170.087201][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9170.087201][ T253] netlink_rcv_skb+0x130/0x360 [ 9170.087201][ T253] netlink_unicast+0x449/0x710 [ 9170.087201][ T253] netlink_sendmsg+0x723/0xbe0 [ 9170.087201][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9170.087201][ T253] ___sys_sendmsg+0xee/0x170 [ 9170.087201][ T253] __sys_sendmsg+0xcd/0x170 [ 9170.087201][ T253] do_syscall_64+0xc6/0x1e0 [ 9170.087201][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9170.087201][ T253] [ 9170.089461][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9170.089461][ T253] netdev_get_by_index+0x5e/0x80 [ 9170.089461][ T253] fib6_nh_init+0x3d8/0x1580 [ 9170.089461][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9170.089461][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9170.089461][ T253] ipv6_add_addr+0x411/0x2000 [ 9170.089461][ T253] inet6_addr_add+0x30e/0xa40 [ 9170.089461][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9170.089461][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9170.089461][ T253] netlink_rcv_skb+0x130/0x360 [ 9170.089461][ T253] netlink_unicast+0x449/0x710 [ 9170.089461][ T253] netlink_sendmsg+0x723/0xbe0 [ 9170.089461][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9170.089461][ T253] ___sys_sendmsg+0xee/0x170 [ 9170.089461][ T253] __sys_sendmsg+0xcd/0x170 [ 9170.089461][ T253] do_syscall_64+0xc6/0x1e0 [ 9170.089461][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9170.089461][ T253] [ 9170.091700][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9170.091700][ T253] netdev_get_by_index+0x5e/0x80 [ 9170.091700][ T253] fib6_nh_init+0x3d8/0x1580 [ 9170.091700][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9170.091700][ T253] ip6_route_add+0x1c/0x140 [ 9170.091700][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9170.091700][ T253] addrconf_add_dev+0xe2/0x170 [ 9170.091700][ T253] inet6_addr_add+0x12f/0xa40 [ 9170.091700][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9170.091700][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9170.091700][ T253] netlink_rcv_skb+0x130/0x360 [ 9170.091700][ T253] netlink_unicast+0x449/0x710 [ 9170.091700][ T253] netlink_sendmsg+0x723/0xbe0 [ 9170.091700][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9170.091700][ T253] ___sys_sendmsg+0xee/0x170 [ 9170.091700][ T253] __sys_sendmsg+0xcd/0x170 [ 9170.091700][ T253] do_syscall_64+0xc6/0x1e0 [ 9170.091700][ T253] [ 9170.093902][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9170.093902][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9170.093902][ T253] ipv6_find_idev+0x102/0x170 [ 9170.093902][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9170.093902][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9170.093902][ T253] netlink_rcv_skb+0x130/0x360 [ 9170.093902][ T253] netlink_unicast+0x449/0x710 [ 9170.093902][ T253] netlink_sendmsg+0x723/0xbe0 [ 9170.093902][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9170.093902][ T253] ___sys_sendmsg+0xee/0x170 [ 9170.093902][ T253] __sys_sendmsg+0xcd/0x170 [ 9170.093902][ T253] do_syscall_64+0xc6/0x1e0 [ 9170.093902][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9170.093902][ T253] [ 9170.095631][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9170.095631][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9170.095631][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9170.095631][ T253] ipv6_find_idev+0x102/0x170 [ 9170.095631][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9170.095631][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9170.095631][ T253] netlink_rcv_skb+0x130/0x360 [ 9170.095631][ T253] netlink_unicast+0x449/0x710 [ 9170.095631][ T253] netlink_sendmsg+0x723/0xbe0 [ 9170.095631][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9170.095631][ T253] ___sys_sendmsg+0xee/0x170 [ 9170.095631][ T253] __sys_sendmsg+0xcd/0x170 [ 9170.095631][ T253] do_syscall_64+0xc6/0x1e0 [ 9170.095631][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9170.095631][ T253] [ 9180.338327][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9180.338800][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9180.338800][ T253] dst_init+0x84/0x4a0 [ 9180.338800][ T253] dst_alloc+0x97/0x150 [ 9180.338800][ T253] ip6_dst_alloc+0x23/0x90 [ 9180.338800][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9180.338800][ T253] ip6_pol_route+0x56f/0x840 [ 9180.338800][ T253] fib6_rule_lookup+0x334/0x630 [ 9180.338800][ T253] ip6_route_output_flags+0x259/0x480 [ 9180.338800][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9180.338800][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9180.338800][ T253] netlink_rcv_skb+0x130/0x360 [ 9180.338800][ T253] netlink_unicast+0x449/0x710 [ 9180.338800][ T253] netlink_sendmsg+0x723/0xbe0 [ 9180.338800][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9180.338800][ T253] ___sys_sendmsg+0xee/0x170 [ 9180.338800][ T253] __sys_sendmsg+0xcd/0x170 [ 9180.338800][ T253] do_syscall_64+0xc6/0x1e0 [ 9180.338800][ T253] [ 9180.340997][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9180.340997][ T253] netdev_get_by_index+0x5e/0x80 [ 9180.340997][ T253] fib6_nh_init+0x3d8/0x1580 [ 9180.340997][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9180.340997][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9180.340997][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9180.340997][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9180.340997][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9180.340997][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9180.340997][ T253] addrconf_dad_begin+0x310/0x670 [ 9180.340997][ T253] addrconf_dad_work+0x10b/0xab0 [ 9180.340997][ T253] process_one_work+0x84d/0x18a0 [ 9180.340997][ T253] worker_thread+0x587/0xd30 [ 9180.340997][ T253] kthread+0x28a/0x350 [ 9180.340997][ T253] ret_from_fork+0x31/0x70 [ 9180.340997][ T253] ret_from_fork_asm+0x1a/0x30 [ 9180.340997][ T253] [ 9180.343151][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9180.343151][ T253] netdev_get_by_index+0x5e/0x80 [ 9180.343151][ T253] fib6_nh_init+0x3d8/0x1580 [ 9180.343151][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9180.343151][ T253] ip6_route_add+0x1c/0x140 [ 9180.343151][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9180.343151][ T253] inet6_addr_add+0x4f8/0xa40 [ 9180.343151][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9180.343151][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9180.343151][ T253] netlink_rcv_skb+0x130/0x360 [ 9180.343151][ T253] netlink_unicast+0x449/0x710 [ 9180.343151][ T253] netlink_sendmsg+0x723/0xbe0 [ 9180.343151][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9180.343151][ T253] ___sys_sendmsg+0xee/0x170 [ 9180.343151][ T253] __sys_sendmsg+0xcd/0x170 [ 9180.343151][ T253] do_syscall_64+0xc6/0x1e0 [ 9180.343151][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9180.343151][ T253] [ 9180.345387][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9180.345387][ T253] netdev_get_by_index+0x5e/0x80 [ 9180.345387][ T253] fib6_nh_init+0x3d8/0x1580 [ 9180.345387][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9180.345387][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9180.345387][ T253] ipv6_add_addr+0x411/0x2000 [ 9180.345387][ T253] inet6_addr_add+0x30e/0xa40 [ 9180.345387][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9180.345387][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9180.345387][ T253] netlink_rcv_skb+0x130/0x360 [ 9180.345387][ T253] netlink_unicast+0x449/0x710 [ 9180.345387][ T253] netlink_sendmsg+0x723/0xbe0 [ 9180.345387][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9180.345387][ T253] ___sys_sendmsg+0xee/0x170 [ 9180.345387][ T253] __sys_sendmsg+0xcd/0x170 [ 9180.345387][ T253] do_syscall_64+0xc6/0x1e0 [ 9180.345387][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9180.345387][ T253] [ 9180.347629][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9180.347629][ T253] netdev_get_by_index+0x5e/0x80 [ 9180.347629][ T253] fib6_nh_init+0x3d8/0x1580 [ 9180.347629][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9180.347629][ T253] ip6_route_add+0x1c/0x140 [ 9180.347629][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9180.347629][ T253] addrconf_add_dev+0xe2/0x170 [ 9180.347629][ T253] inet6_addr_add+0x12f/0xa40 [ 9180.347629][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9180.347629][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9180.347629][ T253] netlink_rcv_skb+0x130/0x360 [ 9180.347629][ T253] netlink_unicast+0x449/0x710 [ 9180.347629][ T253] netlink_sendmsg+0x723/0xbe0 [ 9180.347629][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9180.347629][ T253] ___sys_sendmsg+0xee/0x170 [ 9180.347629][ T253] __sys_sendmsg+0xcd/0x170 [ 9180.347629][ T253] do_syscall_64+0xc6/0x1e0 [ 9180.347629][ T253] [ 9180.349836][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9180.349836][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9180.349836][ T253] ipv6_find_idev+0x102/0x170 [ 9180.349836][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9180.349836][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9180.349836][ T253] netlink_rcv_skb+0x130/0x360 [ 9180.349836][ T253] netlink_unicast+0x449/0x710 [ 9180.349836][ T253] netlink_sendmsg+0x723/0xbe0 [ 9180.349836][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9180.349836][ T253] ___sys_sendmsg+0xee/0x170 [ 9180.349836][ T253] __sys_sendmsg+0xcd/0x170 [ 9180.349836][ T253] do_syscall_64+0xc6/0x1e0 [ 9180.349836][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9180.349836][ T253] [ 9180.351556][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9180.351556][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9180.351556][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9180.351556][ T253] ipv6_find_idev+0x102/0x170 [ 9180.351556][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9180.351556][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9180.351556][ T253] netlink_rcv_skb+0x130/0x360 [ 9180.351556][ T253] netlink_unicast+0x449/0x710 [ 9180.351556][ T253] netlink_sendmsg+0x723/0xbe0 [ 9180.351556][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9180.351556][ T253] ___sys_sendmsg+0xee/0x170 [ 9180.351556][ T253] __sys_sendmsg+0xcd/0x170 [ 9180.351556][ T253] do_syscall_64+0xc6/0x1e0 [ 9180.351556][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9180.351556][ T253] [ 9190.594301][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9190.594767][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9190.594767][ T253] dst_init+0x84/0x4a0 [ 9190.594767][ T253] dst_alloc+0x97/0x150 [ 9190.594767][ T253] ip6_dst_alloc+0x23/0x90 [ 9190.594767][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9190.594767][ T253] ip6_pol_route+0x56f/0x840 [ 9190.594767][ T253] fib6_rule_lookup+0x334/0x630 [ 9190.594767][ T253] ip6_route_output_flags+0x259/0x480 [ 9190.594767][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9190.594767][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9190.594767][ T253] netlink_rcv_skb+0x130/0x360 [ 9190.594767][ T253] netlink_unicast+0x449/0x710 [ 9190.594767][ T253] netlink_sendmsg+0x723/0xbe0 [ 9190.594767][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9190.594767][ T253] ___sys_sendmsg+0xee/0x170 [ 9190.594767][ T253] __sys_sendmsg+0xcd/0x170 [ 9190.594767][ T253] do_syscall_64+0xc6/0x1e0 [ 9190.594767][ T253] [ 9190.596973][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9190.596973][ T253] netdev_get_by_index+0x5e/0x80 [ 9190.596973][ T253] fib6_nh_init+0x3d8/0x1580 [ 9190.596973][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9190.596973][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9190.596973][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9190.596973][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9190.596973][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9190.596973][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9190.596973][ T253] addrconf_dad_begin+0x310/0x670 [ 9190.596973][ T253] addrconf_dad_work+0x10b/0xab0 [ 9190.596973][ T253] process_one_work+0x84d/0x18a0 [ 9190.596973][ T253] worker_thread+0x587/0xd30 [ 9190.596973][ T253] kthread+0x28a/0x350 [ 9190.596973][ T253] ret_from_fork+0x31/0x70 [ 9190.596973][ T253] ret_from_fork_asm+0x1a/0x30 [ 9190.596973][ T253] [ 9190.599155][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9190.599155][ T253] netdev_get_by_index+0x5e/0x80 [ 9190.599155][ T253] fib6_nh_init+0x3d8/0x1580 [ 9190.599155][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9190.599155][ T253] ip6_route_add+0x1c/0x140 [ 9190.599155][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9190.599155][ T253] inet6_addr_add+0x4f8/0xa40 [ 9190.599155][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9190.599155][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9190.599155][ T253] netlink_rcv_skb+0x130/0x360 [ 9190.599155][ T253] netlink_unicast+0x449/0x710 [ 9190.599155][ T253] netlink_sendmsg+0x723/0xbe0 [ 9190.599155][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9190.599155][ T253] ___sys_sendmsg+0xee/0x170 [ 9190.599155][ T253] __sys_sendmsg+0xcd/0x170 [ 9190.599155][ T253] do_syscall_64+0xc6/0x1e0 [ 9190.599155][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9190.599155][ T253] [ 9190.601393][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9190.601393][ T253] netdev_get_by_index+0x5e/0x80 [ 9190.601393][ T253] fib6_nh_init+0x3d8/0x1580 [ 9190.601393][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9190.601393][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9190.601393][ T253] ipv6_add_addr+0x411/0x2000 [ 9190.601393][ T253] inet6_addr_add+0x30e/0xa40 [ 9190.601393][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9190.601393][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9190.601393][ T253] netlink_rcv_skb+0x130/0x360 [ 9190.601393][ T253] netlink_unicast+0x449/0x710 [ 9190.601393][ T253] netlink_sendmsg+0x723/0xbe0 [ 9190.601393][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9190.601393][ T253] ___sys_sendmsg+0xee/0x170 [ 9190.601393][ T253] __sys_sendmsg+0xcd/0x170 [ 9190.601393][ T253] do_syscall_64+0xc6/0x1e0 [ 9190.601393][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9190.601393][ T253] [ 9190.603627][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9190.603627][ T253] netdev_get_by_index+0x5e/0x80 [ 9190.603627][ T253] fib6_nh_init+0x3d8/0x1580 [ 9190.603627][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9190.603627][ T253] ip6_route_add+0x1c/0x140 [ 9190.603627][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9190.603627][ T253] addrconf_add_dev+0xe2/0x170 [ 9190.603627][ T253] inet6_addr_add+0x12f/0xa40 [ 9190.603627][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9190.603627][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9190.603627][ T253] netlink_rcv_skb+0x130/0x360 [ 9190.603627][ T253] netlink_unicast+0x449/0x710 [ 9190.603627][ T253] netlink_sendmsg+0x723/0xbe0 [ 9190.603627][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9190.603627][ T253] ___sys_sendmsg+0xee/0x170 [ 9190.603627][ T253] __sys_sendmsg+0xcd/0x170 [ 9190.603627][ T253] do_syscall_64+0xc6/0x1e0 [ 9190.603627][ T253] [ 9190.605826][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9190.605826][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9190.605826][ T253] ipv6_find_idev+0x102/0x170 [ 9190.605826][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9190.605826][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9190.605826][ T253] netlink_rcv_skb+0x130/0x360 [ 9190.605826][ T253] netlink_unicast+0x449/0x710 [ 9190.605826][ T253] netlink_sendmsg+0x723/0xbe0 [ 9190.605826][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9190.605826][ T253] ___sys_sendmsg+0xee/0x170 [ 9190.605826][ T253] __sys_sendmsg+0xcd/0x170 [ 9190.605826][ T253] do_syscall_64+0xc6/0x1e0 [ 9190.605826][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9190.605826][ T253] [ 9190.607554][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9190.607554][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9190.607554][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9190.607554][ T253] ipv6_find_idev+0x102/0x170 [ 9190.607554][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9190.607554][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9190.607554][ T253] netlink_rcv_skb+0x130/0x360 [ 9190.607554][ T253] netlink_unicast+0x449/0x710 [ 9190.607554][ T253] netlink_sendmsg+0x723/0xbe0 [ 9190.607554][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9190.607554][ T253] ___sys_sendmsg+0xee/0x170 [ 9190.607554][ T253] __sys_sendmsg+0xcd/0x170 [ 9190.607554][ T253] do_syscall_64+0xc6/0x1e0 [ 9190.607554][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9190.607554][ T253] [ 9200.850297][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9200.850769][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9200.850769][ T253] dst_init+0x84/0x4a0 [ 9200.850769][ T253] dst_alloc+0x97/0x150 [ 9200.850769][ T253] ip6_dst_alloc+0x23/0x90 [ 9200.850769][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9200.850769][ T253] ip6_pol_route+0x56f/0x840 [ 9200.850769][ T253] fib6_rule_lookup+0x334/0x630 [ 9200.850769][ T253] ip6_route_output_flags+0x259/0x480 [ 9200.850769][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9200.850769][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9200.850769][ T253] netlink_rcv_skb+0x130/0x360 [ 9200.850769][ T253] netlink_unicast+0x449/0x710 [ 9200.850769][ T253] netlink_sendmsg+0x723/0xbe0 [ 9200.850769][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9200.850769][ T253] ___sys_sendmsg+0xee/0x170 [ 9200.850769][ T253] __sys_sendmsg+0xcd/0x170 [ 9200.850769][ T253] do_syscall_64+0xc6/0x1e0 [ 9200.850769][ T253] [ 9200.852974][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9200.852974][ T253] netdev_get_by_index+0x5e/0x80 [ 9200.852974][ T253] fib6_nh_init+0x3d8/0x1580 [ 9200.852974][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9200.852974][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9200.852974][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9200.852974][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9200.852974][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9200.852974][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9200.852974][ T253] addrconf_dad_begin+0x310/0x670 [ 9200.852974][ T253] addrconf_dad_work+0x10b/0xab0 [ 9200.852974][ T253] process_one_work+0x84d/0x18a0 [ 9200.852974][ T253] worker_thread+0x587/0xd30 [ 9200.852974][ T253] kthread+0x28a/0x350 [ 9200.852974][ T253] ret_from_fork+0x31/0x70 [ 9200.852974][ T253] ret_from_fork_asm+0x1a/0x30 [ 9200.852974][ T253] [ 9200.855116][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9200.855116][ T253] netdev_get_by_index+0x5e/0x80 [ 9200.855116][ T253] fib6_nh_init+0x3d8/0x1580 [ 9200.855116][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9200.855116][ T253] ip6_route_add+0x1c/0x140 [ 9200.855116][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9200.855116][ T253] inet6_addr_add+0x4f8/0xa40 [ 9200.855116][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9200.855116][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9200.855116][ T253] netlink_rcv_skb+0x130/0x360 [ 9200.855116][ T253] netlink_unicast+0x449/0x710 [ 9200.855116][ T253] netlink_sendmsg+0x723/0xbe0 [ 9200.855116][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9200.855116][ T253] ___sys_sendmsg+0xee/0x170 [ 9200.855116][ T253] __sys_sendmsg+0xcd/0x170 [ 9200.855116][ T253] do_syscall_64+0xc6/0x1e0 [ 9200.855116][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9200.855116][ T253] [ 9200.857367][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9200.857367][ T253] netdev_get_by_index+0x5e/0x80 [ 9200.857367][ T253] fib6_nh_init+0x3d8/0x1580 [ 9200.857367][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9200.857367][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9200.857367][ T253] ipv6_add_addr+0x411/0x2000 [ 9200.857367][ T253] inet6_addr_add+0x30e/0xa40 [ 9200.857367][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9200.857367][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9200.857367][ T253] netlink_rcv_skb+0x130/0x360 [ 9200.857367][ T253] netlink_unicast+0x449/0x710 [ 9200.857367][ T253] netlink_sendmsg+0x723/0xbe0 [ 9200.857367][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9200.857367][ T253] ___sys_sendmsg+0xee/0x170 [ 9200.857367][ T253] __sys_sendmsg+0xcd/0x170 [ 9200.857367][ T253] do_syscall_64+0xc6/0x1e0 [ 9200.857367][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9200.857367][ T253] [ 9200.859606][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9200.859606][ T253] netdev_get_by_index+0x5e/0x80 [ 9200.859606][ T253] fib6_nh_init+0x3d8/0x1580 [ 9200.859606][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9200.859606][ T253] ip6_route_add+0x1c/0x140 [ 9200.859606][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9200.859606][ T253] addrconf_add_dev+0xe2/0x170 [ 9200.859606][ T253] inet6_addr_add+0x12f/0xa40 [ 9200.859606][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9200.859606][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9200.859606][ T253] netlink_rcv_skb+0x130/0x360 [ 9200.859606][ T253] netlink_unicast+0x449/0x710 [ 9200.859606][ T253] netlink_sendmsg+0x723/0xbe0 [ 9200.859606][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9200.859606][ T253] ___sys_sendmsg+0xee/0x170 [ 9200.859606][ T253] __sys_sendmsg+0xcd/0x170 [ 9200.859606][ T253] do_syscall_64+0xc6/0x1e0 [ 9200.859606][ T253] [ 9200.861799][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9200.861799][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9200.861799][ T253] ipv6_find_idev+0x102/0x170 [ 9200.861799][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9200.861799][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9200.861799][ T253] netlink_rcv_skb+0x130/0x360 [ 9200.861799][ T253] netlink_unicast+0x449/0x710 [ 9200.861799][ T253] netlink_sendmsg+0x723/0xbe0 [ 9200.861799][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9200.861799][ T253] ___sys_sendmsg+0xee/0x170 [ 9200.861799][ T253] __sys_sendmsg+0xcd/0x170 [ 9200.861799][ T253] do_syscall_64+0xc6/0x1e0 [ 9200.861799][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9200.861799][ T253] [ 9200.863525][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9200.863525][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9200.863525][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9200.863525][ T253] ipv6_find_idev+0x102/0x170 [ 9200.863525][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9200.863525][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9200.863525][ T253] netlink_rcv_skb+0x130/0x360 [ 9200.863525][ T253] netlink_unicast+0x449/0x710 [ 9200.863525][ T253] netlink_sendmsg+0x723/0xbe0 [ 9200.863525][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9200.863525][ T253] ___sys_sendmsg+0xee/0x170 [ 9200.863525][ T253] __sys_sendmsg+0xcd/0x170 [ 9200.863525][ T253] do_syscall_64+0xc6/0x1e0 [ 9200.863525][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9200.863525][ T253] [ 9211.106306][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9211.106774][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9211.106774][ T253] dst_init+0x84/0x4a0 [ 9211.106774][ T253] dst_alloc+0x97/0x150 [ 9211.106774][ T253] ip6_dst_alloc+0x23/0x90 [ 9211.106774][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9211.106774][ T253] ip6_pol_route+0x56f/0x840 [ 9211.106774][ T253] fib6_rule_lookup+0x334/0x630 [ 9211.106774][ T253] ip6_route_output_flags+0x259/0x480 [ 9211.106774][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9211.106774][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9211.106774][ T253] netlink_rcv_skb+0x130/0x360 [ 9211.106774][ T253] netlink_unicast+0x449/0x710 [ 9211.106774][ T253] netlink_sendmsg+0x723/0xbe0 [ 9211.106774][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9211.106774][ T253] ___sys_sendmsg+0xee/0x170 [ 9211.106774][ T253] __sys_sendmsg+0xcd/0x170 [ 9211.106774][ T253] do_syscall_64+0xc6/0x1e0 [ 9211.106774][ T253] [ 9211.108979][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9211.108979][ T253] netdev_get_by_index+0x5e/0x80 [ 9211.108979][ T253] fib6_nh_init+0x3d8/0x1580 [ 9211.108979][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9211.108979][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9211.108979][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9211.108979][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9211.108979][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9211.108979][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9211.108979][ T253] addrconf_dad_begin+0x310/0x670 [ 9211.108979][ T253] addrconf_dad_work+0x10b/0xab0 [ 9211.108979][ T253] process_one_work+0x84d/0x18a0 [ 9211.108979][ T253] worker_thread+0x587/0xd30 [ 9211.108979][ T253] kthread+0x28a/0x350 [ 9211.108979][ T253] ret_from_fork+0x31/0x70 [ 9211.108979][ T253] ret_from_fork_asm+0x1a/0x30 [ 9211.108979][ T253] [ 9211.111118][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9211.111118][ T253] netdev_get_by_index+0x5e/0x80 [ 9211.111118][ T253] fib6_nh_init+0x3d8/0x1580 [ 9211.111118][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9211.111118][ T253] ip6_route_add+0x1c/0x140 [ 9211.111118][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9211.111118][ T253] inet6_addr_add+0x4f8/0xa40 [ 9211.111118][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9211.111118][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9211.111118][ T253] netlink_rcv_skb+0x130/0x360 [ 9211.111118][ T253] netlink_unicast+0x449/0x710 [ 9211.111118][ T253] netlink_sendmsg+0x723/0xbe0 [ 9211.111118][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9211.111118][ T253] ___sys_sendmsg+0xee/0x170 [ 9211.111118][ T253] __sys_sendmsg+0xcd/0x170 [ 9211.111118][ T253] do_syscall_64+0xc6/0x1e0 [ 9211.111118][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9211.111118][ T253] [ 9211.113350][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9211.113350][ T253] netdev_get_by_index+0x5e/0x80 [ 9211.113350][ T253] fib6_nh_init+0x3d8/0x1580 [ 9211.113350][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9211.113350][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9211.113350][ T253] ipv6_add_addr+0x411/0x2000 [ 9211.113350][ T253] inet6_addr_add+0x30e/0xa40 [ 9211.113350][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9211.113350][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9211.113350][ T253] netlink_rcv_skb+0x130/0x360 [ 9211.113350][ T253] netlink_unicast+0x449/0x710 [ 9211.113350][ T253] netlink_sendmsg+0x723/0xbe0 [ 9211.113350][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9211.113350][ T253] ___sys_sendmsg+0xee/0x170 [ 9211.113350][ T253] __sys_sendmsg+0xcd/0x170 [ 9211.113350][ T253] do_syscall_64+0xc6/0x1e0 [ 9211.113350][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9211.113350][ T253] [ 9211.115583][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9211.115583][ T253] netdev_get_by_index+0x5e/0x80 [ 9211.115583][ T253] fib6_nh_init+0x3d8/0x1580 [ 9211.115583][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9211.115583][ T253] ip6_route_add+0x1c/0x140 [ 9211.115583][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9211.115583][ T253] addrconf_add_dev+0xe2/0x170 [ 9211.115583][ T253] inet6_addr_add+0x12f/0xa40 [ 9211.115583][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9211.115583][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9211.115583][ T253] netlink_rcv_skb+0x130/0x360 [ 9211.115583][ T253] netlink_unicast+0x449/0x710 [ 9211.115583][ T253] netlink_sendmsg+0x723/0xbe0 [ 9211.115583][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9211.115583][ T253] ___sys_sendmsg+0xee/0x170 [ 9211.115583][ T253] __sys_sendmsg+0xcd/0x170 [ 9211.115583][ T253] do_syscall_64+0xc6/0x1e0 [ 9211.115583][ T253] [ 9211.118308][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9211.118308][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9211.118308][ T253] ipv6_find_idev+0x102/0x170 [ 9211.118308][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9211.118308][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9211.118308][ T253] netlink_rcv_skb+0x130/0x360 [ 9211.118308][ T253] netlink_unicast+0x449/0x710 [ 9211.118308][ T253] netlink_sendmsg+0x723/0xbe0 [ 9211.118308][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9211.118308][ T253] ___sys_sendmsg+0xee/0x170 [ 9211.118308][ T253] __sys_sendmsg+0xcd/0x170 [ 9211.118308][ T253] do_syscall_64+0xc6/0x1e0 [ 9211.118308][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9211.118308][ T253] [ 9211.120037][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9211.120037][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9211.120037][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9211.120037][ T253] ipv6_find_idev+0x102/0x170 [ 9211.120037][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9211.120037][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9211.120037][ T253] netlink_rcv_skb+0x130/0x360 [ 9211.120037][ T253] netlink_unicast+0x449/0x710 [ 9211.120037][ T253] netlink_sendmsg+0x723/0xbe0 [ 9211.120037][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9211.120037][ T253] ___sys_sendmsg+0xee/0x170 [ 9211.120037][ T253] __sys_sendmsg+0xcd/0x170 [ 9211.120037][ T253] do_syscall_64+0xc6/0x1e0 [ 9211.120037][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9211.120037][ T253] [ 9221.362310][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9221.362790][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9221.362790][ T253] dst_init+0x84/0x4a0 [ 9221.362790][ T253] dst_alloc+0x97/0x150 [ 9221.362790][ T253] ip6_dst_alloc+0x23/0x90 [ 9221.362790][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9221.362790][ T253] ip6_pol_route+0x56f/0x840 [ 9221.362790][ T253] fib6_rule_lookup+0x334/0x630 [ 9221.362790][ T253] ip6_route_output_flags+0x259/0x480 [ 9221.362790][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9221.362790][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9221.362790][ T253] netlink_rcv_skb+0x130/0x360 [ 9221.362790][ T253] netlink_unicast+0x449/0x710 [ 9221.362790][ T253] netlink_sendmsg+0x723/0xbe0 [ 9221.362790][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9221.362790][ T253] ___sys_sendmsg+0xee/0x170 [ 9221.362790][ T253] __sys_sendmsg+0xcd/0x170 [ 9221.362790][ T253] do_syscall_64+0xc6/0x1e0 [ 9221.362790][ T253] [ 9221.364983][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9221.364983][ T253] netdev_get_by_index+0x5e/0x80 [ 9221.364983][ T253] fib6_nh_init+0x3d8/0x1580 [ 9221.364983][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9221.364983][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9221.364983][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9221.364983][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9221.364983][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9221.364983][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9221.364983][ T253] addrconf_dad_begin+0x310/0x670 [ 9221.364983][ T253] addrconf_dad_work+0x10b/0xab0 [ 9221.364983][ T253] process_one_work+0x84d/0x18a0 [ 9221.364983][ T253] worker_thread+0x587/0xd30 [ 9221.364983][ T253] kthread+0x28a/0x350 [ 9221.364983][ T253] ret_from_fork+0x31/0x70 [ 9221.364983][ T253] ret_from_fork_asm+0x1a/0x30 [ 9221.364983][ T253] [ 9221.367119][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9221.367119][ T253] netdev_get_by_index+0x5e/0x80 [ 9221.367119][ T253] fib6_nh_init+0x3d8/0x1580 [ 9221.367119][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9221.367119][ T253] ip6_route_add+0x1c/0x140 [ 9221.367119][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9221.367119][ T253] inet6_addr_add+0x4f8/0xa40 [ 9221.367119][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9221.367119][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9221.367119][ T253] netlink_rcv_skb+0x130/0x360 [ 9221.367119][ T253] netlink_unicast+0x449/0x710 [ 9221.367119][ T253] netlink_sendmsg+0x723/0xbe0 [ 9221.367119][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9221.367119][ T253] ___sys_sendmsg+0xee/0x170 [ 9221.367119][ T253] __sys_sendmsg+0xcd/0x170 [ 9221.367119][ T253] do_syscall_64+0xc6/0x1e0 [ 9221.367119][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9221.367119][ T253] [ 9221.369363][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9221.369363][ T253] netdev_get_by_index+0x5e/0x80 [ 9221.369363][ T253] fib6_nh_init+0x3d8/0x1580 [ 9221.369363][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9221.369363][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9221.369363][ T253] ipv6_add_addr+0x411/0x2000 [ 9221.369363][ T253] inet6_addr_add+0x30e/0xa40 [ 9221.369363][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9221.369363][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9221.369363][ T253] netlink_rcv_skb+0x130/0x360 [ 9221.369363][ T253] netlink_unicast+0x449/0x710 [ 9221.369363][ T253] netlink_sendmsg+0x723/0xbe0 [ 9221.369363][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9221.369363][ T253] ___sys_sendmsg+0xee/0x170 [ 9221.369363][ T253] __sys_sendmsg+0xcd/0x170 [ 9221.369363][ T253] do_syscall_64+0xc6/0x1e0 [ 9221.369363][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9221.369363][ T253] [ 9221.371593][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9221.371593][ T253] netdev_get_by_index+0x5e/0x80 [ 9221.371593][ T253] fib6_nh_init+0x3d8/0x1580 [ 9221.371593][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9221.371593][ T253] ip6_route_add+0x1c/0x140 [ 9221.371593][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9221.371593][ T253] addrconf_add_dev+0xe2/0x170 [ 9221.371593][ T253] inet6_addr_add+0x12f/0xa40 [ 9221.371593][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9221.371593][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9221.371593][ T253] netlink_rcv_skb+0x130/0x360 [ 9221.371593][ T253] netlink_unicast+0x449/0x710 [ 9221.371593][ T253] netlink_sendmsg+0x723/0xbe0 [ 9221.371593][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9221.371593][ T253] ___sys_sendmsg+0xee/0x170 [ 9221.371593][ T253] __sys_sendmsg+0xcd/0x170 [ 9221.371593][ T253] do_syscall_64+0xc6/0x1e0 [ 9221.371593][ T253] [ 9221.373790][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9221.373790][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9221.373790][ T253] ipv6_find_idev+0x102/0x170 [ 9221.373790][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9221.373790][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9221.373790][ T253] netlink_rcv_skb+0x130/0x360 [ 9221.373790][ T253] netlink_unicast+0x449/0x710 [ 9221.373790][ T253] netlink_sendmsg+0x723/0xbe0 [ 9221.373790][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9221.373790][ T253] ___sys_sendmsg+0xee/0x170 [ 9221.373790][ T253] __sys_sendmsg+0xcd/0x170 [ 9221.373790][ T253] do_syscall_64+0xc6/0x1e0 [ 9221.373790][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9221.373790][ T253] [ 9221.375506][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9221.375506][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9221.375506][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9221.375506][ T253] ipv6_find_idev+0x102/0x170 [ 9221.375506][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9221.375506][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9221.375506][ T253] netlink_rcv_skb+0x130/0x360 [ 9221.375506][ T253] netlink_unicast+0x449/0x710 [ 9221.375506][ T253] netlink_sendmsg+0x723/0xbe0 [ 9221.375506][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9221.375506][ T253] ___sys_sendmsg+0xee/0x170 [ 9221.375506][ T253] __sys_sendmsg+0xcd/0x170 [ 9221.375506][ T253] do_syscall_64+0xc6/0x1e0 [ 9221.375506][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9221.375506][ T253] [ 9231.618317][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9231.618788][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9231.618788][ T253] dst_init+0x84/0x4a0 [ 9231.618788][ T253] dst_alloc+0x97/0x150 [ 9231.618788][ T253] ip6_dst_alloc+0x23/0x90 [ 9231.618788][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9231.618788][ T253] ip6_pol_route+0x56f/0x840 [ 9231.618788][ T253] fib6_rule_lookup+0x334/0x630 [ 9231.618788][ T253] ip6_route_output_flags+0x259/0x480 [ 9231.618788][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9231.618788][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9231.618788][ T253] netlink_rcv_skb+0x130/0x360 [ 9231.618788][ T253] netlink_unicast+0x449/0x710 [ 9231.618788][ T253] netlink_sendmsg+0x723/0xbe0 [ 9231.618788][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9231.618788][ T253] ___sys_sendmsg+0xee/0x170 [ 9231.618788][ T253] __sys_sendmsg+0xcd/0x170 [ 9231.618788][ T253] do_syscall_64+0xc6/0x1e0 [ 9231.618788][ T253] [ 9231.620992][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9231.620992][ T253] netdev_get_by_index+0x5e/0x80 [ 9231.620992][ T253] fib6_nh_init+0x3d8/0x1580 [ 9231.620992][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9231.620992][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9231.620992][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9231.620992][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9231.620992][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9231.620992][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9231.620992][ T253] addrconf_dad_begin+0x310/0x670 [ 9231.620992][ T253] addrconf_dad_work+0x10b/0xab0 [ 9231.620992][ T253] process_one_work+0x84d/0x18a0 [ 9231.620992][ T253] worker_thread+0x587/0xd30 [ 9231.620992][ T253] kthread+0x28a/0x350 [ 9231.620992][ T253] ret_from_fork+0x31/0x70 [ 9231.620992][ T253] ret_from_fork_asm+0x1a/0x30 [ 9231.620992][ T253] [ 9231.623143][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9231.623143][ T253] netdev_get_by_index+0x5e/0x80 [ 9231.623143][ T253] fib6_nh_init+0x3d8/0x1580 [ 9231.623143][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9231.623143][ T253] ip6_route_add+0x1c/0x140 [ 9231.623143][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9231.623143][ T253] inet6_addr_add+0x4f8/0xa40 [ 9231.623143][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9231.623143][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9231.623143][ T253] netlink_rcv_skb+0x130/0x360 [ 9231.623143][ T253] netlink_unicast+0x449/0x710 [ 9231.623143][ T253] netlink_sendmsg+0x723/0xbe0 [ 9231.623143][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9231.623143][ T253] ___sys_sendmsg+0xee/0x170 [ 9231.623143][ T253] __sys_sendmsg+0xcd/0x170 [ 9231.623143][ T253] do_syscall_64+0xc6/0x1e0 [ 9231.623143][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9231.623143][ T253] [ 9231.625391][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9231.625391][ T253] netdev_get_by_index+0x5e/0x80 [ 9231.625391][ T253] fib6_nh_init+0x3d8/0x1580 [ 9231.625391][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9231.625391][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9231.625391][ T253] ipv6_add_addr+0x411/0x2000 [ 9231.625391][ T253] inet6_addr_add+0x30e/0xa40 [ 9231.625391][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9231.625391][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9231.625391][ T253] netlink_rcv_skb+0x130/0x360 [ 9231.625391][ T253] netlink_unicast+0x449/0x710 [ 9231.625391][ T253] netlink_sendmsg+0x723/0xbe0 [ 9231.625391][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9231.625391][ T253] ___sys_sendmsg+0xee/0x170 [ 9231.625391][ T253] __sys_sendmsg+0xcd/0x170 [ 9231.625391][ T253] do_syscall_64+0xc6/0x1e0 [ 9231.625391][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9231.625391][ T253] [ 9231.627643][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9231.627643][ T253] netdev_get_by_index+0x5e/0x80 [ 9231.627643][ T253] fib6_nh_init+0x3d8/0x1580 [ 9231.627643][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9231.627643][ T253] ip6_route_add+0x1c/0x140 [ 9231.627643][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9231.627643][ T253] addrconf_add_dev+0xe2/0x170 [ 9231.627643][ T253] inet6_addr_add+0x12f/0xa40 [ 9231.627643][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9231.627643][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9231.627643][ T253] netlink_rcv_skb+0x130/0x360 [ 9231.627643][ T253] netlink_unicast+0x449/0x710 [ 9231.627643][ T253] netlink_sendmsg+0x723/0xbe0 [ 9231.627643][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9231.627643][ T253] ___sys_sendmsg+0xee/0x170 [ 9231.627643][ T253] __sys_sendmsg+0xcd/0x170 [ 9231.627643][ T253] do_syscall_64+0xc6/0x1e0 [ 9231.627643][ T253] [ 9231.629846][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9231.629846][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9231.629846][ T253] ipv6_find_idev+0x102/0x170 [ 9231.629846][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9231.629846][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9231.629846][ T253] netlink_rcv_skb+0x130/0x360 [ 9231.629846][ T253] netlink_unicast+0x449/0x710 [ 9231.629846][ T253] netlink_sendmsg+0x723/0xbe0 [ 9231.629846][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9231.629846][ T253] ___sys_sendmsg+0xee/0x170 [ 9231.629846][ T253] __sys_sendmsg+0xcd/0x170 [ 9231.629846][ T253] do_syscall_64+0xc6/0x1e0 [ 9231.629846][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9231.629846][ T253] [ 9231.631570][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9231.631570][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9231.631570][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9231.631570][ T253] ipv6_find_idev+0x102/0x170 [ 9231.631570][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9231.631570][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9231.631570][ T253] netlink_rcv_skb+0x130/0x360 [ 9231.631570][ T253] netlink_unicast+0x449/0x710 [ 9231.631570][ T253] netlink_sendmsg+0x723/0xbe0 [ 9231.631570][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9231.631570][ T253] ___sys_sendmsg+0xee/0x170 [ 9231.631570][ T253] __sys_sendmsg+0xcd/0x170 [ 9231.631570][ T253] do_syscall_64+0xc6/0x1e0 [ 9231.631570][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9231.631570][ T253] [ 9241.874300][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9241.874781][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9241.874781][ T253] dst_init+0x84/0x4a0 [ 9241.874781][ T253] dst_alloc+0x97/0x150 [ 9241.874781][ T253] ip6_dst_alloc+0x23/0x90 [ 9241.874781][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9241.874781][ T253] ip6_pol_route+0x56f/0x840 [ 9241.874781][ T253] fib6_rule_lookup+0x334/0x630 [ 9241.874781][ T253] ip6_route_output_flags+0x259/0x480 [ 9241.874781][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9241.874781][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9241.874781][ T253] netlink_rcv_skb+0x130/0x360 [ 9241.874781][ T253] netlink_unicast+0x449/0x710 [ 9241.874781][ T253] netlink_sendmsg+0x723/0xbe0 [ 9241.874781][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9241.874781][ T253] ___sys_sendmsg+0xee/0x170 [ 9241.874781][ T253] __sys_sendmsg+0xcd/0x170 [ 9241.874781][ T253] do_syscall_64+0xc6/0x1e0 [ 9241.874781][ T253] [ 9241.876974][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9241.876974][ T253] netdev_get_by_index+0x5e/0x80 [ 9241.876974][ T253] fib6_nh_init+0x3d8/0x1580 [ 9241.876974][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9241.876974][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9241.876974][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9241.876974][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9241.876974][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9241.876974][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9241.876974][ T253] addrconf_dad_begin+0x310/0x670 [ 9241.876974][ T253] addrconf_dad_work+0x10b/0xab0 [ 9241.876974][ T253] process_one_work+0x84d/0x18a0 [ 9241.876974][ T253] worker_thread+0x587/0xd30 [ 9241.876974][ T253] kthread+0x28a/0x350 [ 9241.876974][ T253] ret_from_fork+0x31/0x70 [ 9241.876974][ T253] ret_from_fork_asm+0x1a/0x30 [ 9241.876974][ T253] [ 9241.879139][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9241.879139][ T253] netdev_get_by_index+0x5e/0x80 [ 9241.879139][ T253] fib6_nh_init+0x3d8/0x1580 [ 9241.879139][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9241.879139][ T253] ip6_route_add+0x1c/0x140 [ 9241.879139][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9241.879139][ T253] inet6_addr_add+0x4f8/0xa40 [ 9241.879139][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9241.879139][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9241.879139][ T253] netlink_rcv_skb+0x130/0x360 [ 9241.879139][ T253] netlink_unicast+0x449/0x710 [ 9241.879139][ T253] netlink_sendmsg+0x723/0xbe0 [ 9241.879139][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9241.879139][ T253] ___sys_sendmsg+0xee/0x170 [ 9241.879139][ T253] __sys_sendmsg+0xcd/0x170 [ 9241.879139][ T253] do_syscall_64+0xc6/0x1e0 [ 9241.879139][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9241.879139][ T253] [ 9241.881369][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9241.881369][ T253] netdev_get_by_index+0x5e/0x80 [ 9241.881369][ T253] fib6_nh_init+0x3d8/0x1580 [ 9241.881369][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9241.881369][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9241.881369][ T253] ipv6_add_addr+0x411/0x2000 [ 9241.881369][ T253] inet6_addr_add+0x30e/0xa40 [ 9241.881369][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9241.881369][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9241.881369][ T253] netlink_rcv_skb+0x130/0x360 [ 9241.881369][ T253] netlink_unicast+0x449/0x710 [ 9241.881369][ T253] netlink_sendmsg+0x723/0xbe0 [ 9241.881369][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9241.881369][ T253] ___sys_sendmsg+0xee/0x170 [ 9241.881369][ T253] __sys_sendmsg+0xcd/0x170 [ 9241.881369][ T253] do_syscall_64+0xc6/0x1e0 [ 9241.881369][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9241.881369][ T253] [ 9241.884119][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9241.884119][ T253] netdev_get_by_index+0x5e/0x80 [ 9241.884119][ T253] fib6_nh_init+0x3d8/0x1580 [ 9241.884119][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9241.884119][ T253] ip6_route_add+0x1c/0x140 [ 9241.884119][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9241.884119][ T253] addrconf_add_dev+0xe2/0x170 [ 9241.884119][ T253] inet6_addr_add+0x12f/0xa40 [ 9241.884119][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9241.884119][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9241.884119][ T253] netlink_rcv_skb+0x130/0x360 [ 9241.884119][ T253] netlink_unicast+0x449/0x710 [ 9241.884119][ T253] netlink_sendmsg+0x723/0xbe0 [ 9241.884119][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9241.884119][ T253] ___sys_sendmsg+0xee/0x170 [ 9241.884119][ T253] __sys_sendmsg+0xcd/0x170 [ 9241.884119][ T253] do_syscall_64+0xc6/0x1e0 [ 9241.884119][ T253] [ 9241.886313][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9241.886313][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9241.886313][ T253] ipv6_find_idev+0x102/0x170 [ 9241.886313][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9241.886313][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9241.886313][ T253] netlink_rcv_skb+0x130/0x360 [ 9241.886313][ T253] netlink_unicast+0x449/0x710 [ 9241.886313][ T253] netlink_sendmsg+0x723/0xbe0 [ 9241.886313][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9241.886313][ T253] ___sys_sendmsg+0xee/0x170 [ 9241.886313][ T253] __sys_sendmsg+0xcd/0x170 [ 9241.886313][ T253] do_syscall_64+0xc6/0x1e0 [ 9241.886313][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9241.886313][ T253] [ 9241.888042][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9241.888042][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9241.888042][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9241.888042][ T253] ipv6_find_idev+0x102/0x170 [ 9241.888042][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9241.888042][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9241.888042][ T253] netlink_rcv_skb+0x130/0x360 [ 9241.888042][ T253] netlink_unicast+0x449/0x710 [ 9241.888042][ T253] netlink_sendmsg+0x723/0xbe0 [ 9241.888042][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9241.888042][ T253] ___sys_sendmsg+0xee/0x170 [ 9241.888042][ T253] __sys_sendmsg+0xcd/0x170 [ 9241.888042][ T253] do_syscall_64+0xc6/0x1e0 [ 9241.888042][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9241.888042][ T253] [ 9252.130293][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9252.130770][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9252.130770][ T253] dst_init+0x84/0x4a0 [ 9252.130770][ T253] dst_alloc+0x97/0x150 [ 9252.130770][ T253] ip6_dst_alloc+0x23/0x90 [ 9252.130770][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9252.130770][ T253] ip6_pol_route+0x56f/0x840 [ 9252.130770][ T253] fib6_rule_lookup+0x334/0x630 [ 9252.130770][ T253] ip6_route_output_flags+0x259/0x480 [ 9252.130770][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9252.130770][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9252.130770][ T253] netlink_rcv_skb+0x130/0x360 [ 9252.130770][ T253] netlink_unicast+0x449/0x710 [ 9252.130770][ T253] netlink_sendmsg+0x723/0xbe0 [ 9252.130770][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9252.130770][ T253] ___sys_sendmsg+0xee/0x170 [ 9252.130770][ T253] __sys_sendmsg+0xcd/0x170 [ 9252.130770][ T253] do_syscall_64+0xc6/0x1e0 [ 9252.130770][ T253] [ 9252.132959][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9252.132959][ T253] netdev_get_by_index+0x5e/0x80 [ 9252.132959][ T253] fib6_nh_init+0x3d8/0x1580 [ 9252.132959][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9252.132959][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9252.132959][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9252.132959][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9252.132959][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9252.132959][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9252.132959][ T253] addrconf_dad_begin+0x310/0x670 [ 9252.132959][ T253] addrconf_dad_work+0x10b/0xab0 [ 9252.132959][ T253] process_one_work+0x84d/0x18a0 [ 9252.132959][ T253] worker_thread+0x587/0xd30 [ 9252.132959][ T253] kthread+0x28a/0x350 [ 9252.132959][ T253] ret_from_fork+0x31/0x70 [ 9252.132959][ T253] ret_from_fork_asm+0x1a/0x30 [ 9252.132959][ T253] [ 9252.135118][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9252.135118][ T253] netdev_get_by_index+0x5e/0x80 [ 9252.135118][ T253] fib6_nh_init+0x3d8/0x1580 [ 9252.135118][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9252.135118][ T253] ip6_route_add+0x1c/0x140 [ 9252.135118][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9252.135118][ T253] inet6_addr_add+0x4f8/0xa40 [ 9252.135118][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9252.135118][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9252.135118][ T253] netlink_rcv_skb+0x130/0x360 [ 9252.135118][ T253] netlink_unicast+0x449/0x710 [ 9252.135118][ T253] netlink_sendmsg+0x723/0xbe0 [ 9252.135118][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9252.135118][ T253] ___sys_sendmsg+0xee/0x170 [ 9252.135118][ T253] __sys_sendmsg+0xcd/0x170 [ 9252.135118][ T253] do_syscall_64+0xc6/0x1e0 [ 9252.135118][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9252.135118][ T253] [ 9252.137374][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9252.137374][ T253] netdev_get_by_index+0x5e/0x80 [ 9252.137374][ T253] fib6_nh_init+0x3d8/0x1580 [ 9252.137374][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9252.137374][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9252.137374][ T253] ipv6_add_addr+0x411/0x2000 [ 9252.137374][ T253] inet6_addr_add+0x30e/0xa40 [ 9252.137374][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9252.137374][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9252.137374][ T253] netlink_rcv_skb+0x130/0x360 [ 9252.137374][ T253] netlink_unicast+0x449/0x710 [ 9252.137374][ T253] netlink_sendmsg+0x723/0xbe0 [ 9252.137374][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9252.137374][ T253] ___sys_sendmsg+0xee/0x170 [ 9252.137374][ T253] __sys_sendmsg+0xcd/0x170 [ 9252.137374][ T253] do_syscall_64+0xc6/0x1e0 [ 9252.137374][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9252.137374][ T253] [ 9252.139616][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9252.139616][ T253] netdev_get_by_index+0x5e/0x80 [ 9252.139616][ T253] fib6_nh_init+0x3d8/0x1580 [ 9252.139616][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9252.139616][ T253] ip6_route_add+0x1c/0x140 [ 9252.139616][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9252.139616][ T253] addrconf_add_dev+0xe2/0x170 [ 9252.139616][ T253] inet6_addr_add+0x12f/0xa40 [ 9252.139616][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9252.139616][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9252.139616][ T253] netlink_rcv_skb+0x130/0x360 [ 9252.139616][ T253] netlink_unicast+0x449/0x710 [ 9252.139616][ T253] netlink_sendmsg+0x723/0xbe0 [ 9252.139616][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9252.139616][ T253] ___sys_sendmsg+0xee/0x170 [ 9252.139616][ T253] __sys_sendmsg+0xcd/0x170 [ 9252.139616][ T253] do_syscall_64+0xc6/0x1e0 [ 9252.139616][ T253] [ 9252.141813][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9252.141813][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9252.141813][ T253] ipv6_find_idev+0x102/0x170 [ 9252.141813][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9252.141813][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9252.141813][ T253] netlink_rcv_skb+0x130/0x360 [ 9252.141813][ T253] netlink_unicast+0x449/0x710 [ 9252.141813][ T253] netlink_sendmsg+0x723/0xbe0 [ 9252.141813][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9252.141813][ T253] ___sys_sendmsg+0xee/0x170 [ 9252.141813][ T253] __sys_sendmsg+0xcd/0x170 [ 9252.141813][ T253] do_syscall_64+0xc6/0x1e0 [ 9252.141813][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9252.141813][ T253] [ 9252.143557][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9252.143557][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9252.143557][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9252.143557][ T253] ipv6_find_idev+0x102/0x170 [ 9252.143557][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9252.143557][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9252.143557][ T253] netlink_rcv_skb+0x130/0x360 [ 9252.143557][ T253] netlink_unicast+0x449/0x710 [ 9252.143557][ T253] netlink_sendmsg+0x723/0xbe0 [ 9252.143557][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9252.143557][ T253] ___sys_sendmsg+0xee/0x170 [ 9252.143557][ T253] __sys_sendmsg+0xcd/0x170 [ 9252.143557][ T253] do_syscall_64+0xc6/0x1e0 [ 9252.143557][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9252.143557][ T253] [ 9262.386294][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9262.386760][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9262.386760][ T253] dst_init+0x84/0x4a0 [ 9262.386760][ T253] dst_alloc+0x97/0x150 [ 9262.386760][ T253] ip6_dst_alloc+0x23/0x90 [ 9262.386760][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9262.386760][ T253] ip6_pol_route+0x56f/0x840 [ 9262.386760][ T253] fib6_rule_lookup+0x334/0x630 [ 9262.386760][ T253] ip6_route_output_flags+0x259/0x480 [ 9262.386760][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9262.386760][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9262.386760][ T253] netlink_rcv_skb+0x130/0x360 [ 9262.386760][ T253] netlink_unicast+0x449/0x710 [ 9262.386760][ T253] netlink_sendmsg+0x723/0xbe0 [ 9262.386760][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9262.386760][ T253] ___sys_sendmsg+0xee/0x170 [ 9262.386760][ T253] __sys_sendmsg+0xcd/0x170 [ 9262.386760][ T253] do_syscall_64+0xc6/0x1e0 [ 9262.386760][ T253] [ 9262.388977][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9262.388977][ T253] netdev_get_by_index+0x5e/0x80 [ 9262.388977][ T253] fib6_nh_init+0x3d8/0x1580 [ 9262.388977][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9262.388977][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9262.388977][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9262.388977][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9262.388977][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9262.388977][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9262.388977][ T253] addrconf_dad_begin+0x310/0x670 [ 9262.388977][ T253] addrconf_dad_work+0x10b/0xab0 [ 9262.388977][ T253] process_one_work+0x84d/0x18a0 [ 9262.388977][ T253] worker_thread+0x587/0xd30 [ 9262.388977][ T253] kthread+0x28a/0x350 [ 9262.388977][ T253] ret_from_fork+0x31/0x70 [ 9262.388977][ T253] ret_from_fork_asm+0x1a/0x30 [ 9262.388977][ T253] [ 9262.391139][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9262.391139][ T253] netdev_get_by_index+0x5e/0x80 [ 9262.391139][ T253] fib6_nh_init+0x3d8/0x1580 [ 9262.391139][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9262.391139][ T253] ip6_route_add+0x1c/0x140 [ 9262.391139][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9262.391139][ T253] inet6_addr_add+0x4f8/0xa40 [ 9262.391139][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9262.391139][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9262.391139][ T253] netlink_rcv_skb+0x130/0x360 [ 9262.391139][ T253] netlink_unicast+0x449/0x710 [ 9262.391139][ T253] netlink_sendmsg+0x723/0xbe0 [ 9262.391139][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9262.391139][ T253] ___sys_sendmsg+0xee/0x170 [ 9262.391139][ T253] __sys_sendmsg+0xcd/0x170 [ 9262.391139][ T253] do_syscall_64+0xc6/0x1e0 [ 9262.391139][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9262.391139][ T253] [ 9262.393388][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9262.393388][ T253] netdev_get_by_index+0x5e/0x80 [ 9262.393388][ T253] fib6_nh_init+0x3d8/0x1580 [ 9262.393388][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9262.393388][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9262.393388][ T253] ipv6_add_addr+0x411/0x2000 [ 9262.393388][ T253] inet6_addr_add+0x30e/0xa40 [ 9262.393388][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9262.393388][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9262.393388][ T253] netlink_rcv_skb+0x130/0x360 [ 9262.393388][ T253] netlink_unicast+0x449/0x710 [ 9262.393388][ T253] netlink_sendmsg+0x723/0xbe0 [ 9262.393388][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9262.393388][ T253] ___sys_sendmsg+0xee/0x170 [ 9262.393388][ T253] __sys_sendmsg+0xcd/0x170 [ 9262.393388][ T253] do_syscall_64+0xc6/0x1e0 [ 9262.393388][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9262.393388][ T253] [ 9262.395625][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9262.395625][ T253] netdev_get_by_index+0x5e/0x80 [ 9262.395625][ T253] fib6_nh_init+0x3d8/0x1580 [ 9262.395625][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9262.395625][ T253] ip6_route_add+0x1c/0x140 [ 9262.395625][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9262.395625][ T253] addrconf_add_dev+0xe2/0x170 [ 9262.395625][ T253] inet6_addr_add+0x12f/0xa40 [ 9262.395625][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9262.395625][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9262.395625][ T253] netlink_rcv_skb+0x130/0x360 [ 9262.395625][ T253] netlink_unicast+0x449/0x710 [ 9262.395625][ T253] netlink_sendmsg+0x723/0xbe0 [ 9262.395625][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9262.395625][ T253] ___sys_sendmsg+0xee/0x170 [ 9262.395625][ T253] __sys_sendmsg+0xcd/0x170 [ 9262.395625][ T253] do_syscall_64+0xc6/0x1e0 [ 9262.395625][ T253] [ 9262.397843][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9262.397843][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9262.397843][ T253] ipv6_find_idev+0x102/0x170 [ 9262.397843][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9262.397843][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9262.397843][ T253] netlink_rcv_skb+0x130/0x360 [ 9262.397843][ T253] netlink_unicast+0x449/0x710 [ 9262.397843][ T253] netlink_sendmsg+0x723/0xbe0 [ 9262.397843][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9262.397843][ T253] ___sys_sendmsg+0xee/0x170 [ 9262.397843][ T253] __sys_sendmsg+0xcd/0x170 [ 9262.397843][ T253] do_syscall_64+0xc6/0x1e0 [ 9262.397843][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9262.397843][ T253] [ 9262.399569][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9262.399569][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9262.399569][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9262.399569][ T253] ipv6_find_idev+0x102/0x170 [ 9262.399569][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9262.399569][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9262.399569][ T253] netlink_rcv_skb+0x130/0x360 [ 9262.399569][ T253] netlink_unicast+0x449/0x710 [ 9262.399569][ T253] netlink_sendmsg+0x723/0xbe0 [ 9262.399569][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9262.399569][ T253] ___sys_sendmsg+0xee/0x170 [ 9262.399569][ T253] __sys_sendmsg+0xcd/0x170 [ 9262.399569][ T253] do_syscall_64+0xc6/0x1e0 [ 9262.399569][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9262.399569][ T253] [ 9272.610371][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9272.610855][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9272.610855][ T253] dst_init+0x84/0x4a0 [ 9272.610855][ T253] dst_alloc+0x97/0x150 [ 9272.610855][ T253] ip6_dst_alloc+0x23/0x90 [ 9272.610855][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9272.610855][ T253] ip6_pol_route+0x56f/0x840 [ 9272.610855][ T253] fib6_rule_lookup+0x334/0x630 [ 9272.610855][ T253] ip6_route_output_flags+0x259/0x480 [ 9272.610855][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9272.610855][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9272.610855][ T253] netlink_rcv_skb+0x130/0x360 [ 9272.610855][ T253] netlink_unicast+0x449/0x710 [ 9272.610855][ T253] netlink_sendmsg+0x723/0xbe0 [ 9272.610855][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9272.610855][ T253] ___sys_sendmsg+0xee/0x170 [ 9272.610855][ T253] __sys_sendmsg+0xcd/0x170 [ 9272.610855][ T253] do_syscall_64+0xc6/0x1e0 [ 9272.610855][ T253] [ 9272.613594][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9272.613594][ T253] netdev_get_by_index+0x5e/0x80 [ 9272.613594][ T253] fib6_nh_init+0x3d8/0x1580 [ 9272.613594][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9272.613594][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9272.613594][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9272.613594][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9272.613594][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9272.613594][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9272.613594][ T253] addrconf_dad_begin+0x310/0x670 [ 9272.613594][ T253] addrconf_dad_work+0x10b/0xab0 [ 9272.613594][ T253] process_one_work+0x84d/0x18a0 [ 9272.613594][ T253] worker_thread+0x587/0xd30 [ 9272.613594][ T253] kthread+0x28a/0x350 [ 9272.613594][ T253] ret_from_fork+0x31/0x70 [ 9272.613594][ T253] ret_from_fork_asm+0x1a/0x30 [ 9272.613594][ T253] [ 9272.615761][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9272.615761][ T253] netdev_get_by_index+0x5e/0x80 [ 9272.615761][ T253] fib6_nh_init+0x3d8/0x1580 [ 9272.615761][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9272.615761][ T253] ip6_route_add+0x1c/0x140 [ 9272.615761][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9272.615761][ T253] inet6_addr_add+0x4f8/0xa40 [ 9272.615761][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9272.615761][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9272.615761][ T253] netlink_rcv_skb+0x130/0x360 [ 9272.615761][ T253] netlink_unicast+0x449/0x710 [ 9272.615761][ T253] netlink_sendmsg+0x723/0xbe0 [ 9272.615761][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9272.615761][ T253] ___sys_sendmsg+0xee/0x170 [ 9272.615761][ T253] __sys_sendmsg+0xcd/0x170 [ 9272.615761][ T253] do_syscall_64+0xc6/0x1e0 [ 9272.615761][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9272.615761][ T253] [ 9272.618035][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9272.618035][ T253] netdev_get_by_index+0x5e/0x80 [ 9272.618035][ T253] fib6_nh_init+0x3d8/0x1580 [ 9272.618035][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9272.618035][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9272.618035][ T253] ipv6_add_addr+0x411/0x2000 [ 9272.618035][ T253] inet6_addr_add+0x30e/0xa40 [ 9272.618035][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9272.618035][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9272.618035][ T253] netlink_rcv_skb+0x130/0x360 [ 9272.618035][ T253] netlink_unicast+0x449/0x710 [ 9272.618035][ T253] netlink_sendmsg+0x723/0xbe0 [ 9272.618035][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9272.618035][ T253] ___sys_sendmsg+0xee/0x170 [ 9272.618035][ T253] __sys_sendmsg+0xcd/0x170 [ 9272.618035][ T253] do_syscall_64+0xc6/0x1e0 [ 9272.618035][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9272.618035][ T253] [ 9272.620290][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9272.620290][ T253] netdev_get_by_index+0x5e/0x80 [ 9272.620290][ T253] fib6_nh_init+0x3d8/0x1580 [ 9272.620290][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9272.620290][ T253] ip6_route_add+0x1c/0x140 [ 9272.620290][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9272.620290][ T253] addrconf_add_dev+0xe2/0x170 [ 9272.620290][ T253] inet6_addr_add+0x12f/0xa40 [ 9272.620290][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9272.620290][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9272.620290][ T253] netlink_rcv_skb+0x130/0x360 [ 9272.620290][ T253] netlink_unicast+0x449/0x710 [ 9272.620290][ T253] netlink_sendmsg+0x723/0xbe0 [ 9272.620290][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9272.620290][ T253] ___sys_sendmsg+0xee/0x170 [ 9272.620290][ T253] __sys_sendmsg+0xcd/0x170 [ 9272.620290][ T253] do_syscall_64+0xc6/0x1e0 [ 9272.620290][ T253] [ 9272.622509][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9272.622509][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9272.622509][ T253] ipv6_find_idev+0x102/0x170 [ 9272.622509][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9272.622509][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9272.622509][ T253] netlink_rcv_skb+0x130/0x360 [ 9272.622509][ T253] netlink_unicast+0x449/0x710 [ 9272.622509][ T253] netlink_sendmsg+0x723/0xbe0 [ 9272.622509][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9272.622509][ T253] ___sys_sendmsg+0xee/0x170 [ 9272.622509][ T253] __sys_sendmsg+0xcd/0x170 [ 9272.622509][ T253] do_syscall_64+0xc6/0x1e0 [ 9272.622509][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9272.622509][ T253] [ 9272.624251][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9272.624251][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9272.624251][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9272.624251][ T253] ipv6_find_idev+0x102/0x170 [ 9272.624251][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9272.624251][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9272.624251][ T253] netlink_rcv_skb+0x130/0x360 [ 9272.624251][ T253] netlink_unicast+0x449/0x710 [ 9272.624251][ T253] netlink_sendmsg+0x723/0xbe0 [ 9272.624251][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9272.624251][ T253] ___sys_sendmsg+0xee/0x170 [ 9272.624251][ T253] __sys_sendmsg+0xcd/0x170 [ 9272.624251][ T253] do_syscall_64+0xc6/0x1e0 [ 9272.624251][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9272.624251][ T253] [ 9282.874232][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9282.874718][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9282.874718][ T253] dst_init+0x84/0x4a0 [ 9282.874718][ T253] dst_alloc+0x97/0x150 [ 9282.874718][ T253] ip6_dst_alloc+0x23/0x90 [ 9282.874718][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9282.874718][ T253] ip6_pol_route+0x56f/0x840 [ 9282.874718][ T253] fib6_rule_lookup+0x334/0x630 [ 9282.874718][ T253] ip6_route_output_flags+0x259/0x480 [ 9282.874718][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9282.874718][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9282.874718][ T253] netlink_rcv_skb+0x130/0x360 [ 9282.874718][ T253] netlink_unicast+0x449/0x710 [ 9282.874718][ T253] netlink_sendmsg+0x723/0xbe0 [ 9282.874718][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9282.874718][ T253] ___sys_sendmsg+0xee/0x170 [ 9282.874718][ T253] __sys_sendmsg+0xcd/0x170 [ 9282.874718][ T253] do_syscall_64+0xc6/0x1e0 [ 9282.874718][ T253] [ 9282.876941][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9282.876941][ T253] netdev_get_by_index+0x5e/0x80 [ 9282.876941][ T253] fib6_nh_init+0x3d8/0x1580 [ 9282.876941][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9282.876941][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9282.876941][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9282.876941][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9282.876941][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9282.876941][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9282.876941][ T253] addrconf_dad_begin+0x310/0x670 [ 9282.876941][ T253] addrconf_dad_work+0x10b/0xab0 [ 9282.876941][ T253] process_one_work+0x84d/0x18a0 [ 9282.876941][ T253] worker_thread+0x587/0xd30 [ 9282.876941][ T253] kthread+0x28a/0x350 [ 9282.876941][ T253] ret_from_fork+0x31/0x70 [ 9282.876941][ T253] ret_from_fork_asm+0x1a/0x30 [ 9282.876941][ T253] [ 9282.879117][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9282.879117][ T253] netdev_get_by_index+0x5e/0x80 [ 9282.879117][ T253] fib6_nh_init+0x3d8/0x1580 [ 9282.879117][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9282.879117][ T253] ip6_route_add+0x1c/0x140 [ 9282.879117][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9282.879117][ T253] inet6_addr_add+0x4f8/0xa40 [ 9282.879117][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9282.879117][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9282.879117][ T253] netlink_rcv_skb+0x130/0x360 [ 9282.879117][ T253] netlink_unicast+0x449/0x710 [ 9282.879117][ T253] netlink_sendmsg+0x723/0xbe0 [ 9282.879117][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9282.879117][ T253] ___sys_sendmsg+0xee/0x170 [ 9282.879117][ T253] __sys_sendmsg+0xcd/0x170 [ 9282.879117][ T253] do_syscall_64+0xc6/0x1e0 [ 9282.879117][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9282.879117][ T253] [ 9282.881379][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9282.881379][ T253] netdev_get_by_index+0x5e/0x80 [ 9282.881379][ T253] fib6_nh_init+0x3d8/0x1580 [ 9282.881379][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9282.881379][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9282.881379][ T253] ipv6_add_addr+0x411/0x2000 [ 9282.881379][ T253] inet6_addr_add+0x30e/0xa40 [ 9282.881379][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9282.881379][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9282.881379][ T253] netlink_rcv_skb+0x130/0x360 [ 9282.881379][ T253] netlink_unicast+0x449/0x710 [ 9282.881379][ T253] netlink_sendmsg+0x723/0xbe0 [ 9282.881379][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9282.881379][ T253] ___sys_sendmsg+0xee/0x170 [ 9282.881379][ T253] __sys_sendmsg+0xcd/0x170 [ 9282.881379][ T253] do_syscall_64+0xc6/0x1e0 [ 9282.881379][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9282.881379][ T253] [ 9282.883670][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9282.883670][ T253] netdev_get_by_index+0x5e/0x80 [ 9282.883670][ T253] fib6_nh_init+0x3d8/0x1580 [ 9282.883670][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9282.883670][ T253] ip6_route_add+0x1c/0x140 [ 9282.883670][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9282.883670][ T253] addrconf_add_dev+0xe2/0x170 [ 9282.883670][ T253] inet6_addr_add+0x12f/0xa40 [ 9282.883670][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9282.883670][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9282.883670][ T253] netlink_rcv_skb+0x130/0x360 [ 9282.883670][ T253] netlink_unicast+0x449/0x710 [ 9282.883670][ T253] netlink_sendmsg+0x723/0xbe0 [ 9282.883670][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9282.883670][ T253] ___sys_sendmsg+0xee/0x170 [ 9282.883670][ T253] __sys_sendmsg+0xcd/0x170 [ 9282.883670][ T253] do_syscall_64+0xc6/0x1e0 [ 9282.883670][ T253] [ 9282.885891][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9282.885891][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9282.885891][ T253] ipv6_find_idev+0x102/0x170 [ 9282.885891][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9282.885891][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9282.885891][ T253] netlink_rcv_skb+0x130/0x360 [ 9282.885891][ T253] netlink_unicast+0x449/0x710 [ 9282.885891][ T253] netlink_sendmsg+0x723/0xbe0 [ 9282.885891][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9282.885891][ T253] ___sys_sendmsg+0xee/0x170 [ 9282.885891][ T253] __sys_sendmsg+0xcd/0x170 [ 9282.885891][ T253] do_syscall_64+0xc6/0x1e0 [ 9282.885891][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9282.885891][ T253] [ 9282.887638][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9282.887638][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9282.887638][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9282.887638][ T253] ipv6_find_idev+0x102/0x170 [ 9282.887638][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9282.887638][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9282.887638][ T253] netlink_rcv_skb+0x130/0x360 [ 9282.887638][ T253] netlink_unicast+0x449/0x710 [ 9282.887638][ T253] netlink_sendmsg+0x723/0xbe0 [ 9282.887638][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9282.887638][ T253] ___sys_sendmsg+0xee/0x170 [ 9282.887638][ T253] __sys_sendmsg+0xcd/0x170 [ 9282.887638][ T253] do_syscall_64+0xc6/0x1e0 [ 9282.887638][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9282.887638][ T253] [ 9293.138302][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9293.138732][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9293.138732][ T253] dst_init+0x84/0x4a0 [ 9293.138732][ T253] dst_alloc+0x97/0x150 [ 9293.138732][ T253] ip6_dst_alloc+0x23/0x90 [ 9293.138732][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9293.138732][ T253] ip6_pol_route+0x56f/0x840 [ 9293.138732][ T253] fib6_rule_lookup+0x334/0x630 [ 9293.138732][ T253] ip6_route_output_flags+0x259/0x480 [ 9293.138732][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9293.138732][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9293.138732][ T253] netlink_rcv_skb+0x130/0x360 [ 9293.138732][ T253] netlink_unicast+0x449/0x710 [ 9293.138732][ T253] netlink_sendmsg+0x723/0xbe0 [ 9293.138732][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9293.138732][ T253] ___sys_sendmsg+0xee/0x170 [ 9293.138732][ T253] __sys_sendmsg+0xcd/0x170 [ 9293.138732][ T253] do_syscall_64+0xc6/0x1e0 [ 9293.138732][ T253] [ 9293.140959][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9293.140959][ T253] netdev_get_by_index+0x5e/0x80 [ 9293.140959][ T253] fib6_nh_init+0x3d8/0x1580 [ 9293.140959][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9293.140959][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9293.140959][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9293.140959][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9293.140959][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9293.140959][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9293.140959][ T253] addrconf_dad_begin+0x310/0x670 [ 9293.140959][ T253] addrconf_dad_work+0x10b/0xab0 [ 9293.140959][ T253] process_one_work+0x84d/0x18a0 [ 9293.140959][ T253] worker_thread+0x587/0xd30 [ 9293.140959][ T253] kthread+0x28a/0x350 [ 9293.140959][ T253] ret_from_fork+0x31/0x70 [ 9293.140959][ T253] ret_from_fork_asm+0x1a/0x30 [ 9293.140959][ T253] [ 9293.143127][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9293.143127][ T253] netdev_get_by_index+0x5e/0x80 [ 9293.143127][ T253] fib6_nh_init+0x3d8/0x1580 [ 9293.143127][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9293.143127][ T253] ip6_route_add+0x1c/0x140 [ 9293.143127][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9293.143127][ T253] inet6_addr_add+0x4f8/0xa40 [ 9293.143127][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9293.143127][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9293.143127][ T253] netlink_rcv_skb+0x130/0x360 [ 9293.143127][ T253] netlink_unicast+0x449/0x710 [ 9293.143127][ T253] netlink_sendmsg+0x723/0xbe0 [ 9293.143127][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9293.143127][ T253] ___sys_sendmsg+0xee/0x170 [ 9293.143127][ T253] __sys_sendmsg+0xcd/0x170 [ 9293.143127][ T253] do_syscall_64+0xc6/0x1e0 [ 9293.143127][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9293.143127][ T253] [ 9293.145391][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9293.145391][ T253] netdev_get_by_index+0x5e/0x80 [ 9293.145391][ T253] fib6_nh_init+0x3d8/0x1580 [ 9293.145391][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9293.145391][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9293.145391][ T253] ipv6_add_addr+0x411/0x2000 [ 9293.145391][ T253] inet6_addr_add+0x30e/0xa40 [ 9293.145391][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9293.145391][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9293.145391][ T253] netlink_rcv_skb+0x130/0x360 [ 9293.145391][ T253] netlink_unicast+0x449/0x710 [ 9293.145391][ T253] netlink_sendmsg+0x723/0xbe0 [ 9293.145391][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9293.145391][ T253] ___sys_sendmsg+0xee/0x170 [ 9293.145391][ T253] __sys_sendmsg+0xcd/0x170 [ 9293.145391][ T253] do_syscall_64+0xc6/0x1e0 [ 9293.145391][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9293.145391][ T253] [ 9293.147672][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9293.147672][ T253] netdev_get_by_index+0x5e/0x80 [ 9293.147672][ T253] fib6_nh_init+0x3d8/0x1580 [ 9293.147672][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9293.147672][ T253] ip6_route_add+0x1c/0x140 [ 9293.147672][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9293.147672][ T253] addrconf_add_dev+0xe2/0x170 [ 9293.147672][ T253] inet6_addr_add+0x12f/0xa40 [ 9293.147672][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9293.147672][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9293.147672][ T253] netlink_rcv_skb+0x130/0x360 [ 9293.147672][ T253] netlink_unicast+0x449/0x710 [ 9293.147672][ T253] netlink_sendmsg+0x723/0xbe0 [ 9293.147672][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9293.147672][ T253] ___sys_sendmsg+0xee/0x170 [ 9293.147672][ T253] __sys_sendmsg+0xcd/0x170 [ 9293.147672][ T253] do_syscall_64+0xc6/0x1e0 [ 9293.147672][ T253] [ 9293.149888][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9293.149888][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9293.149888][ T253] ipv6_find_idev+0x102/0x170 [ 9293.149888][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9293.149888][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9293.149888][ T253] netlink_rcv_skb+0x130/0x360 [ 9293.149888][ T253] netlink_unicast+0x449/0x710 [ 9293.149888][ T253] netlink_sendmsg+0x723/0xbe0 [ 9293.149888][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9293.149888][ T253] ___sys_sendmsg+0xee/0x170 [ 9293.149888][ T253] __sys_sendmsg+0xcd/0x170 [ 9293.149888][ T253] do_syscall_64+0xc6/0x1e0 [ 9293.149888][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9293.149888][ T253] [ 9293.151626][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9293.151626][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9293.151626][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9293.151626][ T253] ipv6_find_idev+0x102/0x170 [ 9293.151626][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9293.151626][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9293.151626][ T253] netlink_rcv_skb+0x130/0x360 [ 9293.151626][ T253] netlink_unicast+0x449/0x710 [ 9293.151626][ T253] netlink_sendmsg+0x723/0xbe0 [ 9293.151626][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9293.151626][ T253] ___sys_sendmsg+0xee/0x170 [ 9293.151626][ T253] __sys_sendmsg+0xcd/0x170 [ 9293.151626][ T253] do_syscall_64+0xc6/0x1e0 [ 9293.151626][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9293.151626][ T253] [ 9303.402297][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9303.402784][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9303.402784][ T253] dst_init+0x84/0x4a0 [ 9303.402784][ T253] dst_alloc+0x97/0x150 [ 9303.402784][ T253] ip6_dst_alloc+0x23/0x90 [ 9303.402784][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9303.402784][ T253] ip6_pol_route+0x56f/0x840 [ 9303.402784][ T253] fib6_rule_lookup+0x334/0x630 [ 9303.402784][ T253] ip6_route_output_flags+0x259/0x480 [ 9303.402784][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9303.402784][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9303.402784][ T253] netlink_rcv_skb+0x130/0x360 [ 9303.402784][ T253] netlink_unicast+0x449/0x710 [ 9303.402784][ T253] netlink_sendmsg+0x723/0xbe0 [ 9303.402784][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9303.402784][ T253] ___sys_sendmsg+0xee/0x170 [ 9303.402784][ T253] __sys_sendmsg+0xcd/0x170 [ 9303.402784][ T253] do_syscall_64+0xc6/0x1e0 [ 9303.402784][ T253] [ 9303.405009][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9303.405009][ T253] netdev_get_by_index+0x5e/0x80 [ 9303.405009][ T253] fib6_nh_init+0x3d8/0x1580 [ 9303.405009][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9303.405009][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9303.405009][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9303.405009][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9303.405009][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9303.405009][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9303.405009][ T253] addrconf_dad_begin+0x310/0x670 [ 9303.405009][ T253] addrconf_dad_work+0x10b/0xab0 [ 9303.405009][ T253] process_one_work+0x84d/0x18a0 [ 9303.405009][ T253] worker_thread+0x587/0xd30 [ 9303.405009][ T253] kthread+0x28a/0x350 [ 9303.405009][ T253] ret_from_fork+0x31/0x70 [ 9303.405009][ T253] ret_from_fork_asm+0x1a/0x30 [ 9303.405009][ T253] [ 9303.407179][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9303.407179][ T253] netdev_get_by_index+0x5e/0x80 [ 9303.407179][ T253] fib6_nh_init+0x3d8/0x1580 [ 9303.407179][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9303.407179][ T253] ip6_route_add+0x1c/0x140 [ 9303.407179][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9303.407179][ T253] inet6_addr_add+0x4f8/0xa40 [ 9303.407179][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9303.407179][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9303.407179][ T253] netlink_rcv_skb+0x130/0x360 [ 9303.407179][ T253] netlink_unicast+0x449/0x710 [ 9303.407179][ T253] netlink_sendmsg+0x723/0xbe0 [ 9303.407179][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9303.407179][ T253] ___sys_sendmsg+0xee/0x170 [ 9303.407179][ T253] __sys_sendmsg+0xcd/0x170 [ 9303.407179][ T253] do_syscall_64+0xc6/0x1e0 [ 9303.407179][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9303.407179][ T253] [ 9303.409432][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9303.409432][ T253] netdev_get_by_index+0x5e/0x80 [ 9303.409432][ T253] fib6_nh_init+0x3d8/0x1580 [ 9303.409432][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9303.409432][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9303.409432][ T253] ipv6_add_addr+0x411/0x2000 [ 9303.409432][ T253] inet6_addr_add+0x30e/0xa40 [ 9303.409432][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9303.409432][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9303.409432][ T253] netlink_rcv_skb+0x130/0x360 [ 9303.409432][ T253] netlink_unicast+0x449/0x710 [ 9303.409432][ T253] netlink_sendmsg+0x723/0xbe0 [ 9303.409432][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9303.409432][ T253] ___sys_sendmsg+0xee/0x170 [ 9303.409432][ T253] __sys_sendmsg+0xcd/0x170 [ 9303.409432][ T253] do_syscall_64+0xc6/0x1e0 [ 9303.409432][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9303.409432][ T253] [ 9303.411687][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9303.411687][ T253] netdev_get_by_index+0x5e/0x80 [ 9303.411687][ T253] fib6_nh_init+0x3d8/0x1580 [ 9303.411687][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9303.411687][ T253] ip6_route_add+0x1c/0x140 [ 9303.411687][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9303.411687][ T253] addrconf_add_dev+0xe2/0x170 [ 9303.411687][ T253] inet6_addr_add+0x12f/0xa40 [ 9303.411687][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9303.411687][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9303.411687][ T253] netlink_rcv_skb+0x130/0x360 [ 9303.411687][ T253] netlink_unicast+0x449/0x710 [ 9303.411687][ T253] netlink_sendmsg+0x723/0xbe0 [ 9303.411687][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9303.411687][ T253] ___sys_sendmsg+0xee/0x170 [ 9303.411687][ T253] __sys_sendmsg+0xcd/0x170 [ 9303.411687][ T253] do_syscall_64+0xc6/0x1e0 [ 9303.411687][ T253] [ 9303.413903][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9303.413903][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9303.413903][ T253] ipv6_find_idev+0x102/0x170 [ 9303.413903][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9303.413903][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9303.413903][ T253] netlink_rcv_skb+0x130/0x360 [ 9303.413903][ T253] netlink_unicast+0x449/0x710 [ 9303.413903][ T253] netlink_sendmsg+0x723/0xbe0 [ 9303.413903][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9303.413903][ T253] ___sys_sendmsg+0xee/0x170 [ 9303.413903][ T253] __sys_sendmsg+0xcd/0x170 [ 9303.413903][ T253] do_syscall_64+0xc6/0x1e0 [ 9303.413903][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9303.413903][ T253] [ 9303.415637][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9303.415637][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9303.415637][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9303.415637][ T253] ipv6_find_idev+0x102/0x170 [ 9303.415637][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9303.415637][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9303.415637][ T253] netlink_rcv_skb+0x130/0x360 [ 9303.415637][ T253] netlink_unicast+0x449/0x710 [ 9303.415637][ T253] netlink_sendmsg+0x723/0xbe0 [ 9303.415637][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9303.415637][ T253] ___sys_sendmsg+0xee/0x170 [ 9303.415637][ T253] __sys_sendmsg+0xcd/0x170 [ 9303.415637][ T253] do_syscall_64+0xc6/0x1e0 [ 9303.415637][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9303.415637][ T253] [ 9313.666307][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9313.666754][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9313.666754][ T253] dst_init+0x84/0x4a0 [ 9313.666754][ T253] dst_alloc+0x97/0x150 [ 9313.666754][ T253] ip6_dst_alloc+0x23/0x90 [ 9313.666754][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9313.666754][ T253] ip6_pol_route+0x56f/0x840 [ 9313.666754][ T253] fib6_rule_lookup+0x334/0x630 [ 9313.666754][ T253] ip6_route_output_flags+0x259/0x480 [ 9313.666754][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9313.666754][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9313.666754][ T253] netlink_rcv_skb+0x130/0x360 [ 9313.666754][ T253] netlink_unicast+0x449/0x710 [ 9313.666754][ T253] netlink_sendmsg+0x723/0xbe0 [ 9313.666754][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9313.666754][ T253] ___sys_sendmsg+0xee/0x170 [ 9313.666754][ T253] __sys_sendmsg+0xcd/0x170 [ 9313.666754][ T253] do_syscall_64+0xc6/0x1e0 [ 9313.666754][ T253] [ 9313.668970][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9313.668970][ T253] netdev_get_by_index+0x5e/0x80 [ 9313.668970][ T253] fib6_nh_init+0x3d8/0x1580 [ 9313.668970][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9313.668970][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9313.668970][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9313.668970][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9313.668970][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9313.668970][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9313.668970][ T253] addrconf_dad_begin+0x310/0x670 [ 9313.668970][ T253] addrconf_dad_work+0x10b/0xab0 [ 9313.668970][ T253] process_one_work+0x84d/0x18a0 [ 9313.668970][ T253] worker_thread+0x587/0xd30 [ 9313.668970][ T253] kthread+0x28a/0x350 [ 9313.668970][ T253] ret_from_fork+0x31/0x70 [ 9313.668970][ T253] ret_from_fork_asm+0x1a/0x30 [ 9313.668970][ T253] [ 9313.671132][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9313.671132][ T253] netdev_get_by_index+0x5e/0x80 [ 9313.671132][ T253] fib6_nh_init+0x3d8/0x1580 [ 9313.671132][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9313.671132][ T253] ip6_route_add+0x1c/0x140 [ 9313.671132][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9313.671132][ T253] inet6_addr_add+0x4f8/0xa40 [ 9313.671132][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9313.671132][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9313.671132][ T253] netlink_rcv_skb+0x130/0x360 [ 9313.671132][ T253] netlink_unicast+0x449/0x710 [ 9313.671132][ T253] netlink_sendmsg+0x723/0xbe0 [ 9313.671132][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9313.671132][ T253] ___sys_sendmsg+0xee/0x170 [ 9313.671132][ T253] __sys_sendmsg+0xcd/0x170 [ 9313.671132][ T253] do_syscall_64+0xc6/0x1e0 [ 9313.671132][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9313.671132][ T253] [ 9313.673415][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9313.673415][ T253] netdev_get_by_index+0x5e/0x80 [ 9313.673415][ T253] fib6_nh_init+0x3d8/0x1580 [ 9313.673415][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9313.673415][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9313.673415][ T253] ipv6_add_addr+0x411/0x2000 [ 9313.673415][ T253] inet6_addr_add+0x30e/0xa40 [ 9313.673415][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9313.673415][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9313.673415][ T253] netlink_rcv_skb+0x130/0x360 [ 9313.673415][ T253] netlink_unicast+0x449/0x710 [ 9313.673415][ T253] netlink_sendmsg+0x723/0xbe0 [ 9313.673415][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9313.673415][ T253] ___sys_sendmsg+0xee/0x170 [ 9313.673415][ T253] __sys_sendmsg+0xcd/0x170 [ 9313.673415][ T253] do_syscall_64+0xc6/0x1e0 [ 9313.673415][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9313.673415][ T253] [ 9313.675684][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9313.675684][ T253] netdev_get_by_index+0x5e/0x80 [ 9313.675684][ T253] fib6_nh_init+0x3d8/0x1580 [ 9313.675684][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9313.675684][ T253] ip6_route_add+0x1c/0x140 [ 9313.675684][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9313.675684][ T253] addrconf_add_dev+0xe2/0x170 [ 9313.675684][ T253] inet6_addr_add+0x12f/0xa40 [ 9313.675684][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9313.675684][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9313.675684][ T253] netlink_rcv_skb+0x130/0x360 [ 9313.675684][ T253] netlink_unicast+0x449/0x710 [ 9313.675684][ T253] netlink_sendmsg+0x723/0xbe0 [ 9313.675684][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9313.675684][ T253] ___sys_sendmsg+0xee/0x170 [ 9313.675684][ T253] __sys_sendmsg+0xcd/0x170 [ 9313.675684][ T253] do_syscall_64+0xc6/0x1e0 [ 9313.675684][ T253] [ 9313.677909][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9313.677909][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9313.677909][ T253] ipv6_find_idev+0x102/0x170 [ 9313.677909][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9313.677909][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9313.677909][ T253] netlink_rcv_skb+0x130/0x360 [ 9313.677909][ T253] netlink_unicast+0x449/0x710 [ 9313.677909][ T253] netlink_sendmsg+0x723/0xbe0 [ 9313.677909][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9313.677909][ T253] ___sys_sendmsg+0xee/0x170 [ 9313.677909][ T253] __sys_sendmsg+0xcd/0x170 [ 9313.677909][ T253] do_syscall_64+0xc6/0x1e0 [ 9313.677909][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9313.677909][ T253] [ 9313.679647][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9313.679647][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9313.679647][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9313.679647][ T253] ipv6_find_idev+0x102/0x170 [ 9313.679647][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9313.679647][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9313.679647][ T253] netlink_rcv_skb+0x130/0x360 [ 9313.679647][ T253] netlink_unicast+0x449/0x710 [ 9313.679647][ T253] netlink_sendmsg+0x723/0xbe0 [ 9313.679647][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9313.679647][ T253] ___sys_sendmsg+0xee/0x170 [ 9313.679647][ T253] __sys_sendmsg+0xcd/0x170 [ 9313.679647][ T253] do_syscall_64+0xc6/0x1e0 [ 9313.679647][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9313.679647][ T253] [ 9323.802242][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9323.802673][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9323.802673][ T253] dst_init+0x84/0x4a0 [ 9323.802673][ T253] dst_alloc+0x97/0x150 [ 9323.802673][ T253] ip6_dst_alloc+0x23/0x90 [ 9323.802673][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9323.802673][ T253] ip6_pol_route+0x56f/0x840 [ 9323.802673][ T253] fib6_rule_lookup+0x334/0x630 [ 9323.802673][ T253] ip6_route_output_flags+0x259/0x480 [ 9323.802673][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9323.802673][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9323.802673][ T253] netlink_rcv_skb+0x130/0x360 [ 9323.802673][ T253] netlink_unicast+0x449/0x710 [ 9323.802673][ T253] netlink_sendmsg+0x723/0xbe0 [ 9323.802673][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9323.802673][ T253] ___sys_sendmsg+0xee/0x170 [ 9323.802673][ T253] __sys_sendmsg+0xcd/0x170 [ 9323.802673][ T253] do_syscall_64+0xc6/0x1e0 [ 9323.802673][ T253] [ 9323.804887][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9323.804887][ T253] netdev_get_by_index+0x5e/0x80 [ 9323.804887][ T253] fib6_nh_init+0x3d8/0x1580 [ 9323.804887][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9323.804887][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9323.804887][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9323.804887][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9323.804887][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9323.804887][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9323.804887][ T253] addrconf_dad_begin+0x310/0x670 [ 9323.804887][ T253] addrconf_dad_work+0x10b/0xab0 [ 9323.804887][ T253] process_one_work+0x84d/0x18a0 [ 9323.804887][ T253] worker_thread+0x587/0xd30 [ 9323.804887][ T253] kthread+0x28a/0x350 [ 9323.804887][ T253] ret_from_fork+0x31/0x70 [ 9323.804887][ T253] ret_from_fork_asm+0x1a/0x30 [ 9323.804887][ T253] [ 9323.807060][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9323.807060][ T253] netdev_get_by_index+0x5e/0x80 [ 9323.807060][ T253] fib6_nh_init+0x3d8/0x1580 [ 9323.807060][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9323.807060][ T253] ip6_route_add+0x1c/0x140 [ 9323.807060][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9323.807060][ T253] inet6_addr_add+0x4f8/0xa40 [ 9323.807060][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9323.807060][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9323.807060][ T253] netlink_rcv_skb+0x130/0x360 [ 9323.807060][ T253] netlink_unicast+0x449/0x710 [ 9323.807060][ T253] netlink_sendmsg+0x723/0xbe0 [ 9323.807060][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9323.807060][ T253] ___sys_sendmsg+0xee/0x170 [ 9323.807060][ T253] __sys_sendmsg+0xcd/0x170 [ 9323.807060][ T253] do_syscall_64+0xc6/0x1e0 [ 9323.807060][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9323.807060][ T253] [ 9323.809325][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9323.809325][ T253] netdev_get_by_index+0x5e/0x80 [ 9323.809325][ T253] fib6_nh_init+0x3d8/0x1580 [ 9323.809325][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9323.809325][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9323.809325][ T253] ipv6_add_addr+0x411/0x2000 [ 9323.809325][ T253] inet6_addr_add+0x30e/0xa40 [ 9323.809325][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9323.809325][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9323.809325][ T253] netlink_rcv_skb+0x130/0x360 [ 9323.809325][ T253] netlink_unicast+0x449/0x710 [ 9323.809325][ T253] netlink_sendmsg+0x723/0xbe0 [ 9323.809325][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9323.809325][ T253] ___sys_sendmsg+0xee/0x170 [ 9323.809325][ T253] __sys_sendmsg+0xcd/0x170 [ 9323.809325][ T253] do_syscall_64+0xc6/0x1e0 [ 9323.809325][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9323.809325][ T253] [ 9323.811593][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9323.811593][ T253] netdev_get_by_index+0x5e/0x80 [ 9323.811593][ T253] fib6_nh_init+0x3d8/0x1580 [ 9323.811593][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9323.811593][ T253] ip6_route_add+0x1c/0x140 [ 9323.811593][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9323.811593][ T253] addrconf_add_dev+0xe2/0x170 [ 9323.811593][ T253] inet6_addr_add+0x12f/0xa40 [ 9323.811593][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9323.811593][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9323.811593][ T253] netlink_rcv_skb+0x130/0x360 [ 9323.811593][ T253] netlink_unicast+0x449/0x710 [ 9323.811593][ T253] netlink_sendmsg+0x723/0xbe0 [ 9323.811593][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9323.811593][ T253] ___sys_sendmsg+0xee/0x170 [ 9323.811593][ T253] __sys_sendmsg+0xcd/0x170 [ 9323.811593][ T253] do_syscall_64+0xc6/0x1e0 [ 9323.811593][ T253] [ 9323.813826][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9323.813826][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9323.813826][ T253] ipv6_find_idev+0x102/0x170 [ 9323.813826][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9323.813826][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9323.813826][ T253] netlink_rcv_skb+0x130/0x360 [ 9323.813826][ T253] netlink_unicast+0x449/0x710 [ 9323.813826][ T253] netlink_sendmsg+0x723/0xbe0 [ 9323.813826][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9323.813826][ T253] ___sys_sendmsg+0xee/0x170 [ 9323.813826][ T253] __sys_sendmsg+0xcd/0x170 [ 9323.813826][ T253] do_syscall_64+0xc6/0x1e0 [ 9323.813826][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9323.813826][ T253] [ 9323.815566][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9323.815566][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9323.815566][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9323.815566][ T253] ipv6_find_idev+0x102/0x170 [ 9323.815566][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9323.815566][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9323.815566][ T253] netlink_rcv_skb+0x130/0x360 [ 9323.815566][ T253] netlink_unicast+0x449/0x710 [ 9323.815566][ T253] netlink_sendmsg+0x723/0xbe0 [ 9323.815566][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9323.815566][ T253] ___sys_sendmsg+0xee/0x170 [ 9323.815566][ T253] __sys_sendmsg+0xcd/0x170 [ 9323.815566][ T253] do_syscall_64+0xc6/0x1e0 [ 9323.815566][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9323.815566][ T253] [ 9334.058336][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9334.058756][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9334.058756][ T253] dst_init+0x84/0x4a0 [ 9334.058756][ T253] dst_alloc+0x97/0x150 [ 9334.058756][ T253] ip6_dst_alloc+0x23/0x90 [ 9334.058756][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9334.058756][ T253] ip6_pol_route+0x56f/0x840 [ 9334.058756][ T253] fib6_rule_lookup+0x334/0x630 [ 9334.058756][ T253] ip6_route_output_flags+0x259/0x480 [ 9334.058756][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9334.058756][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9334.058756][ T253] netlink_rcv_skb+0x130/0x360 [ 9334.058756][ T253] netlink_unicast+0x449/0x710 [ 9334.058756][ T253] netlink_sendmsg+0x723/0xbe0 [ 9334.058756][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9334.058756][ T253] ___sys_sendmsg+0xee/0x170 [ 9334.058756][ T253] __sys_sendmsg+0xcd/0x170 [ 9334.058756][ T253] do_syscall_64+0xc6/0x1e0 [ 9334.058756][ T253] [ 9334.060952][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9334.060952][ T253] netdev_get_by_index+0x5e/0x80 [ 9334.060952][ T253] fib6_nh_init+0x3d8/0x1580 [ 9334.060952][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9334.060952][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9334.060952][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9334.060952][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9334.060952][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9334.060952][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9334.060952][ T253] addrconf_dad_begin+0x310/0x670 [ 9334.060952][ T253] addrconf_dad_work+0x10b/0xab0 [ 9334.060952][ T253] process_one_work+0x84d/0x18a0 [ 9334.060952][ T253] worker_thread+0x587/0xd30 [ 9334.060952][ T253] kthread+0x28a/0x350 [ 9334.060952][ T253] ret_from_fork+0x31/0x70 [ 9334.060952][ T253] ret_from_fork_asm+0x1a/0x30 [ 9334.060952][ T253] [ 9334.063100][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9334.063100][ T253] netdev_get_by_index+0x5e/0x80 [ 9334.063100][ T253] fib6_nh_init+0x3d8/0x1580 [ 9334.063100][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9334.063100][ T253] ip6_route_add+0x1c/0x140 [ 9334.063100][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9334.063100][ T253] inet6_addr_add+0x4f8/0xa40 [ 9334.063100][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9334.063100][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9334.063100][ T253] netlink_rcv_skb+0x130/0x360 [ 9334.063100][ T253] netlink_unicast+0x449/0x710 [ 9334.063100][ T253] netlink_sendmsg+0x723/0xbe0 [ 9334.063100][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9334.063100][ T253] ___sys_sendmsg+0xee/0x170 [ 9334.063100][ T253] __sys_sendmsg+0xcd/0x170 [ 9334.063100][ T253] do_syscall_64+0xc6/0x1e0 [ 9334.063100][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9334.063100][ T253] [ 9334.065339][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9334.065339][ T253] netdev_get_by_index+0x5e/0x80 [ 9334.065339][ T253] fib6_nh_init+0x3d8/0x1580 [ 9334.065339][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9334.065339][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9334.065339][ T253] ipv6_add_addr+0x411/0x2000 [ 9334.065339][ T253] inet6_addr_add+0x30e/0xa40 [ 9334.065339][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9334.065339][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9334.065339][ T253] netlink_rcv_skb+0x130/0x360 [ 9334.065339][ T253] netlink_unicast+0x449/0x710 [ 9334.065339][ T253] netlink_sendmsg+0x723/0xbe0 [ 9334.065339][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9334.065339][ T253] ___sys_sendmsg+0xee/0x170 [ 9334.065339][ T253] __sys_sendmsg+0xcd/0x170 [ 9334.065339][ T253] do_syscall_64+0xc6/0x1e0 [ 9334.065339][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9334.065339][ T253] [ 9334.067596][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9334.067596][ T253] netdev_get_by_index+0x5e/0x80 [ 9334.067596][ T253] fib6_nh_init+0x3d8/0x1580 [ 9334.067596][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9334.067596][ T253] ip6_route_add+0x1c/0x140 [ 9334.067596][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9334.067596][ T253] addrconf_add_dev+0xe2/0x170 [ 9334.067596][ T253] inet6_addr_add+0x12f/0xa40 [ 9334.067596][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9334.067596][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9334.067596][ T253] netlink_rcv_skb+0x130/0x360 [ 9334.067596][ T253] netlink_unicast+0x449/0x710 [ 9334.067596][ T253] netlink_sendmsg+0x723/0xbe0 [ 9334.067596][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9334.067596][ T253] ___sys_sendmsg+0xee/0x170 [ 9334.067596][ T253] __sys_sendmsg+0xcd/0x170 [ 9334.067596][ T253] do_syscall_64+0xc6/0x1e0 [ 9334.067596][ T253] [ 9334.069814][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9334.069814][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9334.069814][ T253] ipv6_find_idev+0x102/0x170 [ 9334.069814][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9334.069814][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9334.069814][ T253] netlink_rcv_skb+0x130/0x360 [ 9334.069814][ T253] netlink_unicast+0x449/0x710 [ 9334.069814][ T253] netlink_sendmsg+0x723/0xbe0 [ 9334.069814][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9334.069814][ T253] ___sys_sendmsg+0xee/0x170 [ 9334.069814][ T253] __sys_sendmsg+0xcd/0x170 [ 9334.069814][ T253] do_syscall_64+0xc6/0x1e0 [ 9334.069814][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9334.069814][ T253] [ 9334.071536][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9334.071536][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9334.071536][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9334.071536][ T253] ipv6_find_idev+0x102/0x170 [ 9334.071536][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9334.071536][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9334.071536][ T253] netlink_rcv_skb+0x130/0x360 [ 9334.071536][ T253] netlink_unicast+0x449/0x710 [ 9334.071536][ T253] netlink_sendmsg+0x723/0xbe0 [ 9334.071536][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9334.071536][ T253] ___sys_sendmsg+0xee/0x170 [ 9334.071536][ T253] __sys_sendmsg+0xcd/0x170 [ 9334.071536][ T253] do_syscall_64+0xc6/0x1e0 [ 9334.071536][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9334.071536][ T253] [ 9344.130295][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9344.130705][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9344.130705][ T253] dst_init+0x84/0x4a0 [ 9344.130705][ T253] dst_alloc+0x97/0x150 [ 9344.130705][ T253] ip6_dst_alloc+0x23/0x90 [ 9344.130705][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9344.130705][ T253] ip6_pol_route+0x56f/0x840 [ 9344.130705][ T253] fib6_rule_lookup+0x334/0x630 [ 9344.130705][ T253] ip6_route_output_flags+0x259/0x480 [ 9344.130705][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9344.130705][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9344.130705][ T253] netlink_rcv_skb+0x130/0x360 [ 9344.130705][ T253] netlink_unicast+0x449/0x710 [ 9344.130705][ T253] netlink_sendmsg+0x723/0xbe0 [ 9344.130705][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9344.130705][ T253] ___sys_sendmsg+0xee/0x170 [ 9344.130705][ T253] __sys_sendmsg+0xcd/0x170 [ 9344.130705][ T253] do_syscall_64+0xc6/0x1e0 [ 9344.130705][ T253] [ 9344.132903][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9344.132903][ T253] netdev_get_by_index+0x5e/0x80 [ 9344.132903][ T253] fib6_nh_init+0x3d8/0x1580 [ 9344.132903][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9344.132903][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9344.132903][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9344.132903][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9344.132903][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9344.132903][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9344.132903][ T253] addrconf_dad_begin+0x310/0x670 [ 9344.132903][ T253] addrconf_dad_work+0x10b/0xab0 [ 9344.132903][ T253] process_one_work+0x84d/0x18a0 [ 9344.132903][ T253] worker_thread+0x587/0xd30 [ 9344.132903][ T253] kthread+0x28a/0x350 [ 9344.132903][ T253] ret_from_fork+0x31/0x70 [ 9344.132903][ T253] ret_from_fork_asm+0x1a/0x30 [ 9344.132903][ T253] [ 9344.135056][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9344.135056][ T253] netdev_get_by_index+0x5e/0x80 [ 9344.135056][ T253] fib6_nh_init+0x3d8/0x1580 [ 9344.135056][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9344.135056][ T253] ip6_route_add+0x1c/0x140 [ 9344.135056][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9344.135056][ T253] inet6_addr_add+0x4f8/0xa40 [ 9344.135056][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9344.135056][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9344.135056][ T253] netlink_rcv_skb+0x130/0x360 [ 9344.135056][ T253] netlink_unicast+0x449/0x710 [ 9344.135056][ T253] netlink_sendmsg+0x723/0xbe0 [ 9344.135056][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9344.135056][ T253] ___sys_sendmsg+0xee/0x170 [ 9344.135056][ T253] __sys_sendmsg+0xcd/0x170 [ 9344.135056][ T253] do_syscall_64+0xc6/0x1e0 [ 9344.135056][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9344.135056][ T253] [ 9344.137322][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9344.137322][ T253] netdev_get_by_index+0x5e/0x80 [ 9344.137322][ T253] fib6_nh_init+0x3d8/0x1580 [ 9344.137322][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9344.137322][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9344.137322][ T253] ipv6_add_addr+0x411/0x2000 [ 9344.137322][ T253] inet6_addr_add+0x30e/0xa40 [ 9344.137322][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9344.137322][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9344.137322][ T253] netlink_rcv_skb+0x130/0x360 [ 9344.137322][ T253] netlink_unicast+0x449/0x710 [ 9344.137322][ T253] netlink_sendmsg+0x723/0xbe0 [ 9344.137322][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9344.137322][ T253] ___sys_sendmsg+0xee/0x170 [ 9344.137322][ T253] __sys_sendmsg+0xcd/0x170 [ 9344.137322][ T253] do_syscall_64+0xc6/0x1e0 [ 9344.137322][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9344.137322][ T253] [ 9344.139572][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9344.139572][ T253] netdev_get_by_index+0x5e/0x80 [ 9344.139572][ T253] fib6_nh_init+0x3d8/0x1580 [ 9344.139572][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9344.139572][ T253] ip6_route_add+0x1c/0x140 [ 9344.139572][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9344.139572][ T253] addrconf_add_dev+0xe2/0x170 [ 9344.139572][ T253] inet6_addr_add+0x12f/0xa40 [ 9344.139572][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9344.139572][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9344.139572][ T253] netlink_rcv_skb+0x130/0x360 [ 9344.139572][ T253] netlink_unicast+0x449/0x710 [ 9344.139572][ T253] netlink_sendmsg+0x723/0xbe0 [ 9344.139572][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9344.139572][ T253] ___sys_sendmsg+0xee/0x170 [ 9344.139572][ T253] __sys_sendmsg+0xcd/0x170 [ 9344.139572][ T253] do_syscall_64+0xc6/0x1e0 [ 9344.139572][ T253] [ 9344.141781][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9344.141781][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9344.141781][ T253] ipv6_find_idev+0x102/0x170 [ 9344.141781][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9344.141781][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9344.141781][ T253] netlink_rcv_skb+0x130/0x360 [ 9344.141781][ T253] netlink_unicast+0x449/0x710 [ 9344.141781][ T253] netlink_sendmsg+0x723/0xbe0 [ 9344.141781][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9344.141781][ T253] ___sys_sendmsg+0xee/0x170 [ 9344.141781][ T253] __sys_sendmsg+0xcd/0x170 [ 9344.141781][ T253] do_syscall_64+0xc6/0x1e0 [ 9344.141781][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9344.141781][ T253] [ 9344.143511][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9344.143511][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9344.143511][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9344.143511][ T253] ipv6_find_idev+0x102/0x170 [ 9344.143511][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9344.143511][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9344.143511][ T253] netlink_rcv_skb+0x130/0x360 [ 9344.143511][ T253] netlink_unicast+0x449/0x710 [ 9344.143511][ T253] netlink_sendmsg+0x723/0xbe0 [ 9344.143511][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9344.143511][ T253] ___sys_sendmsg+0xee/0x170 [ 9344.143511][ T253] __sys_sendmsg+0xcd/0x170 [ 9344.143511][ T253] do_syscall_64+0xc6/0x1e0 [ 9344.143511][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9344.143511][ T253] [ 9354.386291][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9354.386710][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9354.386710][ T253] dst_init+0x84/0x4a0 [ 9354.386710][ T253] dst_alloc+0x97/0x150 [ 9354.386710][ T253] ip6_dst_alloc+0x23/0x90 [ 9354.386710][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9354.386710][ T253] ip6_pol_route+0x56f/0x840 [ 9354.386710][ T253] fib6_rule_lookup+0x334/0x630 [ 9354.386710][ T253] ip6_route_output_flags+0x259/0x480 [ 9354.386710][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9354.386710][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9354.386710][ T253] netlink_rcv_skb+0x130/0x360 [ 9354.386710][ T253] netlink_unicast+0x449/0x710 [ 9354.386710][ T253] netlink_sendmsg+0x723/0xbe0 [ 9354.386710][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9354.386710][ T253] ___sys_sendmsg+0xee/0x170 [ 9354.386710][ T253] __sys_sendmsg+0xcd/0x170 [ 9354.386710][ T253] do_syscall_64+0xc6/0x1e0 [ 9354.386710][ T253] [ 9354.388919][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9354.388919][ T253] netdev_get_by_index+0x5e/0x80 [ 9354.388919][ T253] fib6_nh_init+0x3d8/0x1580 [ 9354.388919][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9354.388919][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9354.388919][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9354.388919][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9354.388919][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9354.388919][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9354.388919][ T253] addrconf_dad_begin+0x310/0x670 [ 9354.388919][ T253] addrconf_dad_work+0x10b/0xab0 [ 9354.388919][ T253] process_one_work+0x84d/0x18a0 [ 9354.388919][ T253] worker_thread+0x587/0xd30 [ 9354.388919][ T253] kthread+0x28a/0x350 [ 9354.388919][ T253] ret_from_fork+0x31/0x70 [ 9354.388919][ T253] ret_from_fork_asm+0x1a/0x30 [ 9354.388919][ T253] [ 9354.391083][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9354.391083][ T253] netdev_get_by_index+0x5e/0x80 [ 9354.391083][ T253] fib6_nh_init+0x3d8/0x1580 [ 9354.391083][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9354.391083][ T253] ip6_route_add+0x1c/0x140 [ 9354.391083][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9354.391083][ T253] inet6_addr_add+0x4f8/0xa40 [ 9354.391083][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9354.391083][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9354.391083][ T253] netlink_rcv_skb+0x130/0x360 [ 9354.391083][ T253] netlink_unicast+0x449/0x710 [ 9354.391083][ T253] netlink_sendmsg+0x723/0xbe0 [ 9354.391083][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9354.391083][ T253] ___sys_sendmsg+0xee/0x170 [ 9354.391083][ T253] __sys_sendmsg+0xcd/0x170 [ 9354.391083][ T253] do_syscall_64+0xc6/0x1e0 [ 9354.391083][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9354.391083][ T253] [ 9354.393364][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9354.393364][ T253] netdev_get_by_index+0x5e/0x80 [ 9354.393364][ T253] fib6_nh_init+0x3d8/0x1580 [ 9354.393364][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9354.393364][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9354.393364][ T253] ipv6_add_addr+0x411/0x2000 [ 9354.393364][ T253] inet6_addr_add+0x30e/0xa40 [ 9354.393364][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9354.393364][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9354.393364][ T253] netlink_rcv_skb+0x130/0x360 [ 9354.393364][ T253] netlink_unicast+0x449/0x710 [ 9354.393364][ T253] netlink_sendmsg+0x723/0xbe0 [ 9354.393364][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9354.393364][ T253] ___sys_sendmsg+0xee/0x170 [ 9354.393364][ T253] __sys_sendmsg+0xcd/0x170 [ 9354.393364][ T253] do_syscall_64+0xc6/0x1e0 [ 9354.393364][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9354.393364][ T253] [ 9354.395624][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9354.395624][ T253] netdev_get_by_index+0x5e/0x80 [ 9354.395624][ T253] fib6_nh_init+0x3d8/0x1580 [ 9354.395624][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9354.395624][ T253] ip6_route_add+0x1c/0x140 [ 9354.395624][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9354.395624][ T253] addrconf_add_dev+0xe2/0x170 [ 9354.395624][ T253] inet6_addr_add+0x12f/0xa40 [ 9354.395624][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9354.395624][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9354.395624][ T253] netlink_rcv_skb+0x130/0x360 [ 9354.395624][ T253] netlink_unicast+0x449/0x710 [ 9354.395624][ T253] netlink_sendmsg+0x723/0xbe0 [ 9354.395624][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9354.395624][ T253] ___sys_sendmsg+0xee/0x170 [ 9354.395624][ T253] __sys_sendmsg+0xcd/0x170 [ 9354.395624][ T253] do_syscall_64+0xc6/0x1e0 [ 9354.395624][ T253] [ 9354.397849][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9354.397849][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9354.397849][ T253] ipv6_find_idev+0x102/0x170 [ 9354.397849][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9354.397849][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9354.397849][ T253] netlink_rcv_skb+0x130/0x360 [ 9354.397849][ T253] netlink_unicast+0x449/0x710 [ 9354.397849][ T253] netlink_sendmsg+0x723/0xbe0 [ 9354.397849][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9354.397849][ T253] ___sys_sendmsg+0xee/0x170 [ 9354.397849][ T253] __sys_sendmsg+0xcd/0x170 [ 9354.397849][ T253] do_syscall_64+0xc6/0x1e0 [ 9354.397849][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9354.397849][ T253] [ 9354.399575][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9354.399575][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9354.399575][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9354.399575][ T253] ipv6_find_idev+0x102/0x170 [ 9354.399575][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9354.399575][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9354.399575][ T253] netlink_rcv_skb+0x130/0x360 [ 9354.399575][ T253] netlink_unicast+0x449/0x710 [ 9354.399575][ T253] netlink_sendmsg+0x723/0xbe0 [ 9354.399575][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9354.399575][ T253] ___sys_sendmsg+0xee/0x170 [ 9354.399575][ T253] __sys_sendmsg+0xcd/0x170 [ 9354.399575][ T253] do_syscall_64+0xc6/0x1e0 [ 9354.399575][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9354.399575][ T253] [ 9364.642373][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9364.642784][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9364.642784][ T253] dst_init+0x84/0x4a0 [ 9364.642784][ T253] dst_alloc+0x97/0x150 [ 9364.642784][ T253] ip6_dst_alloc+0x23/0x90 [ 9364.642784][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9364.642784][ T253] ip6_pol_route+0x56f/0x840 [ 9364.642784][ T253] fib6_rule_lookup+0x334/0x630 [ 9364.642784][ T253] ip6_route_output_flags+0x259/0x480 [ 9364.642784][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9364.642784][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9364.642784][ T253] netlink_rcv_skb+0x130/0x360 [ 9364.642784][ T253] netlink_unicast+0x449/0x710 [ 9364.642784][ T253] netlink_sendmsg+0x723/0xbe0 [ 9364.642784][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9364.642784][ T253] ___sys_sendmsg+0xee/0x170 [ 9364.642784][ T253] __sys_sendmsg+0xcd/0x170 [ 9364.642784][ T253] do_syscall_64+0xc6/0x1e0 [ 9364.642784][ T253] [ 9364.644998][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9364.644998][ T253] netdev_get_by_index+0x5e/0x80 [ 9364.644998][ T253] fib6_nh_init+0x3d8/0x1580 [ 9364.644998][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9364.644998][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9364.644998][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9364.644998][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9364.644998][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9364.644998][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9364.644998][ T253] addrconf_dad_begin+0x310/0x670 [ 9364.644998][ T253] addrconf_dad_work+0x10b/0xab0 [ 9364.644998][ T253] process_one_work+0x84d/0x18a0 [ 9364.644998][ T253] worker_thread+0x587/0xd30 [ 9364.644998][ T253] kthread+0x28a/0x350 [ 9364.644998][ T253] ret_from_fork+0x31/0x70 [ 9364.644998][ T253] ret_from_fork_asm+0x1a/0x30 [ 9364.644998][ T253] [ 9364.647157][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9364.647157][ T253] netdev_get_by_index+0x5e/0x80 [ 9364.647157][ T253] fib6_nh_init+0x3d8/0x1580 [ 9364.647157][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9364.647157][ T253] ip6_route_add+0x1c/0x140 [ 9364.647157][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9364.647157][ T253] inet6_addr_add+0x4f8/0xa40 [ 9364.647157][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9364.647157][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9364.647157][ T253] netlink_rcv_skb+0x130/0x360 [ 9364.647157][ T253] netlink_unicast+0x449/0x710 [ 9364.647157][ T253] netlink_sendmsg+0x723/0xbe0 [ 9364.647157][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9364.647157][ T253] ___sys_sendmsg+0xee/0x170 [ 9364.647157][ T253] __sys_sendmsg+0xcd/0x170 [ 9364.647157][ T253] do_syscall_64+0xc6/0x1e0 [ 9364.647157][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9364.647157][ T253] [ 9364.649403][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9364.649403][ T253] netdev_get_by_index+0x5e/0x80 [ 9364.649403][ T253] fib6_nh_init+0x3d8/0x1580 [ 9364.649403][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9364.649403][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9364.649403][ T253] ipv6_add_addr+0x411/0x2000 [ 9364.649403][ T253] inet6_addr_add+0x30e/0xa40 [ 9364.649403][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9364.649403][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9364.649403][ T253] netlink_rcv_skb+0x130/0x360 [ 9364.649403][ T253] netlink_unicast+0x449/0x710 [ 9364.649403][ T253] netlink_sendmsg+0x723/0xbe0 [ 9364.649403][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9364.649403][ T253] ___sys_sendmsg+0xee/0x170 [ 9364.649403][ T253] __sys_sendmsg+0xcd/0x170 [ 9364.649403][ T253] do_syscall_64+0xc6/0x1e0 [ 9364.649403][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9364.649403][ T253] [ 9364.651647][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9364.651647][ T253] netdev_get_by_index+0x5e/0x80 [ 9364.651647][ T253] fib6_nh_init+0x3d8/0x1580 [ 9364.651647][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9364.651647][ T253] ip6_route_add+0x1c/0x140 [ 9364.651647][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9364.651647][ T253] addrconf_add_dev+0xe2/0x170 [ 9364.651647][ T253] inet6_addr_add+0x12f/0xa40 [ 9364.651647][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9364.651647][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9364.651647][ T253] netlink_rcv_skb+0x130/0x360 [ 9364.651647][ T253] netlink_unicast+0x449/0x710 [ 9364.651647][ T253] netlink_sendmsg+0x723/0xbe0 [ 9364.651647][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9364.651647][ T253] ___sys_sendmsg+0xee/0x170 [ 9364.651647][ T253] __sys_sendmsg+0xcd/0x170 [ 9364.651647][ T253] do_syscall_64+0xc6/0x1e0 [ 9364.651647][ T253] [ 9364.653852][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9364.653852][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9364.653852][ T253] ipv6_find_idev+0x102/0x170 [ 9364.653852][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9364.653852][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9364.653852][ T253] netlink_rcv_skb+0x130/0x360 [ 9364.653852][ T253] netlink_unicast+0x449/0x710 [ 9364.653852][ T253] netlink_sendmsg+0x723/0xbe0 [ 9364.653852][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9364.653852][ T253] ___sys_sendmsg+0xee/0x170 [ 9364.653852][ T253] __sys_sendmsg+0xcd/0x170 [ 9364.653852][ T253] do_syscall_64+0xc6/0x1e0 [ 9364.653852][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9364.653852][ T253] [ 9364.655582][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9364.655582][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9364.655582][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9364.655582][ T253] ipv6_find_idev+0x102/0x170 [ 9364.655582][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9364.655582][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9364.655582][ T253] netlink_rcv_skb+0x130/0x360 [ 9364.655582][ T253] netlink_unicast+0x449/0x710 [ 9364.655582][ T253] netlink_sendmsg+0x723/0xbe0 [ 9364.655582][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9364.655582][ T253] ___sys_sendmsg+0xee/0x170 [ 9364.655582][ T253] __sys_sendmsg+0xcd/0x170 [ 9364.655582][ T253] do_syscall_64+0xc6/0x1e0 [ 9364.655582][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9364.655582][ T253] [ 9374.898226][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9374.898636][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9374.898636][ T253] dst_init+0x84/0x4a0 [ 9374.898636][ T253] dst_alloc+0x97/0x150 [ 9374.898636][ T253] ip6_dst_alloc+0x23/0x90 [ 9374.898636][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9374.898636][ T253] ip6_pol_route+0x56f/0x840 [ 9374.898636][ T253] fib6_rule_lookup+0x334/0x630 [ 9374.898636][ T253] ip6_route_output_flags+0x259/0x480 [ 9374.898636][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9374.898636][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9374.898636][ T253] netlink_rcv_skb+0x130/0x360 [ 9374.898636][ T253] netlink_unicast+0x449/0x710 [ 9374.898636][ T253] netlink_sendmsg+0x723/0xbe0 [ 9374.898636][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9374.898636][ T253] ___sys_sendmsg+0xee/0x170 [ 9374.898636][ T253] __sys_sendmsg+0xcd/0x170 [ 9374.898636][ T253] do_syscall_64+0xc6/0x1e0 [ 9374.898636][ T253] [ 9374.900859][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9374.900859][ T253] netdev_get_by_index+0x5e/0x80 [ 9374.900859][ T253] fib6_nh_init+0x3d8/0x1580 [ 9374.900859][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9374.900859][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9374.900859][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9374.900859][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9374.900859][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9374.900859][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9374.900859][ T253] addrconf_dad_begin+0x310/0x670 [ 9374.900859][ T253] addrconf_dad_work+0x10b/0xab0 [ 9374.900859][ T253] process_one_work+0x84d/0x18a0 [ 9374.900859][ T253] worker_thread+0x587/0xd30 [ 9374.900859][ T253] kthread+0x28a/0x350 [ 9374.900859][ T253] ret_from_fork+0x31/0x70 [ 9374.900859][ T253] ret_from_fork_asm+0x1a/0x30 [ 9374.900859][ T253] [ 9374.903014][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9374.903014][ T253] netdev_get_by_index+0x5e/0x80 [ 9374.903014][ T253] fib6_nh_init+0x3d8/0x1580 [ 9374.903014][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9374.903014][ T253] ip6_route_add+0x1c/0x140 [ 9374.903014][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9374.903014][ T253] inet6_addr_add+0x4f8/0xa40 [ 9374.903014][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9374.903014][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9374.903014][ T253] netlink_rcv_skb+0x130/0x360 [ 9374.903014][ T253] netlink_unicast+0x449/0x710 [ 9374.903014][ T253] netlink_sendmsg+0x723/0xbe0 [ 9374.903014][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9374.903014][ T253] ___sys_sendmsg+0xee/0x170 [ 9374.903014][ T253] __sys_sendmsg+0xcd/0x170 [ 9374.903014][ T253] do_syscall_64+0xc6/0x1e0 [ 9374.903014][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9374.903014][ T253] [ 9374.905263][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9374.905263][ T253] netdev_get_by_index+0x5e/0x80 [ 9374.905263][ T253] fib6_nh_init+0x3d8/0x1580 [ 9374.905263][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9374.905263][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9374.905263][ T253] ipv6_add_addr+0x411/0x2000 [ 9374.905263][ T253] inet6_addr_add+0x30e/0xa40 [ 9374.905263][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9374.905263][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9374.905263][ T253] netlink_rcv_skb+0x130/0x360 [ 9374.905263][ T253] netlink_unicast+0x449/0x710 [ 9374.905263][ T253] netlink_sendmsg+0x723/0xbe0 [ 9374.905263][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9374.905263][ T253] ___sys_sendmsg+0xee/0x170 [ 9374.905263][ T253] __sys_sendmsg+0xcd/0x170 [ 9374.905263][ T253] do_syscall_64+0xc6/0x1e0 [ 9374.905263][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9374.905263][ T253] [ 9374.907539][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9374.907539][ T253] netdev_get_by_index+0x5e/0x80 [ 9374.907539][ T253] fib6_nh_init+0x3d8/0x1580 [ 9374.907539][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9374.907539][ T253] ip6_route_add+0x1c/0x140 [ 9374.907539][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9374.907539][ T253] addrconf_add_dev+0xe2/0x170 [ 9374.907539][ T253] inet6_addr_add+0x12f/0xa40 [ 9374.907539][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9374.907539][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9374.907539][ T253] netlink_rcv_skb+0x130/0x360 [ 9374.907539][ T253] netlink_unicast+0x449/0x710 [ 9374.907539][ T253] netlink_sendmsg+0x723/0xbe0 [ 9374.907539][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9374.907539][ T253] ___sys_sendmsg+0xee/0x170 [ 9374.907539][ T253] __sys_sendmsg+0xcd/0x170 [ 9374.907539][ T253] do_syscall_64+0xc6/0x1e0 [ 9374.907539][ T253] [ 9374.909778][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9374.909778][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9374.909778][ T253] ipv6_find_idev+0x102/0x170 [ 9374.909778][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9374.909778][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9374.909778][ T253] netlink_rcv_skb+0x130/0x360 [ 9374.909778][ T253] netlink_unicast+0x449/0x710 [ 9374.909778][ T253] netlink_sendmsg+0x723/0xbe0 [ 9374.909778][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9374.909778][ T253] ___sys_sendmsg+0xee/0x170 [ 9374.909778][ T253] __sys_sendmsg+0xcd/0x170 [ 9374.909778][ T253] do_syscall_64+0xc6/0x1e0 [ 9374.909778][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9374.909778][ T253] [ 9374.911511][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9374.911511][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9374.911511][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9374.911511][ T253] ipv6_find_idev+0x102/0x170 [ 9374.911511][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9374.911511][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9374.911511][ T253] netlink_rcv_skb+0x130/0x360 [ 9374.911511][ T253] netlink_unicast+0x449/0x710 [ 9374.911511][ T253] netlink_sendmsg+0x723/0xbe0 [ 9374.911511][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9374.911511][ T253] ___sys_sendmsg+0xee/0x170 [ 9374.911511][ T253] __sys_sendmsg+0xcd/0x170 [ 9374.911511][ T253] do_syscall_64+0xc6/0x1e0 [ 9374.911511][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9374.911511][ T253] [ 9385.154237][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9385.154654][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9385.154654][ T253] dst_init+0x84/0x4a0 [ 9385.154654][ T253] dst_alloc+0x97/0x150 [ 9385.154654][ T253] ip6_dst_alloc+0x23/0x90 [ 9385.154654][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9385.154654][ T253] ip6_pol_route+0x56f/0x840 [ 9385.154654][ T253] fib6_rule_lookup+0x334/0x630 [ 9385.154654][ T253] ip6_route_output_flags+0x259/0x480 [ 9385.154654][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9385.154654][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9385.154654][ T253] netlink_rcv_skb+0x130/0x360 [ 9385.154654][ T253] netlink_unicast+0x449/0x710 [ 9385.154654][ T253] netlink_sendmsg+0x723/0xbe0 [ 9385.154654][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9385.154654][ T253] ___sys_sendmsg+0xee/0x170 [ 9385.154654][ T253] __sys_sendmsg+0xcd/0x170 [ 9385.154654][ T253] do_syscall_64+0xc6/0x1e0 [ 9385.154654][ T253] [ 9385.156883][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9385.156883][ T253] netdev_get_by_index+0x5e/0x80 [ 9385.156883][ T253] fib6_nh_init+0x3d8/0x1580 [ 9385.156883][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9385.156883][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9385.156883][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9385.156883][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9385.156883][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9385.156883][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9385.156883][ T253] addrconf_dad_begin+0x310/0x670 [ 9385.156883][ T253] addrconf_dad_work+0x10b/0xab0 [ 9385.156883][ T253] process_one_work+0x84d/0x18a0 [ 9385.156883][ T253] worker_thread+0x587/0xd30 [ 9385.156883][ T253] kthread+0x28a/0x350 [ 9385.156883][ T253] ret_from_fork+0x31/0x70 [ 9385.156883][ T253] ret_from_fork_asm+0x1a/0x30 [ 9385.156883][ T253] [ 9385.159044][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9385.159044][ T253] netdev_get_by_index+0x5e/0x80 [ 9385.159044][ T253] fib6_nh_init+0x3d8/0x1580 [ 9385.159044][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9385.159044][ T253] ip6_route_add+0x1c/0x140 [ 9385.159044][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9385.159044][ T253] inet6_addr_add+0x4f8/0xa40 [ 9385.159044][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9385.159044][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9385.159044][ T253] netlink_rcv_skb+0x130/0x360 [ 9385.159044][ T253] netlink_unicast+0x449/0x710 [ 9385.159044][ T253] netlink_sendmsg+0x723/0xbe0 [ 9385.159044][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9385.159044][ T253] ___sys_sendmsg+0xee/0x170 [ 9385.159044][ T253] __sys_sendmsg+0xcd/0x170 [ 9385.159044][ T253] do_syscall_64+0xc6/0x1e0 [ 9385.159044][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9385.159044][ T253] [ 9385.161298][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9385.161298][ T253] netdev_get_by_index+0x5e/0x80 [ 9385.161298][ T253] fib6_nh_init+0x3d8/0x1580 [ 9385.161298][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9385.161298][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9385.161298][ T253] ipv6_add_addr+0x411/0x2000 [ 9385.161298][ T253] inet6_addr_add+0x30e/0xa40 [ 9385.161298][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9385.161298][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9385.161298][ T253] netlink_rcv_skb+0x130/0x360 [ 9385.161298][ T253] netlink_unicast+0x449/0x710 [ 9385.161298][ T253] netlink_sendmsg+0x723/0xbe0 [ 9385.161298][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9385.161298][ T253] ___sys_sendmsg+0xee/0x170 [ 9385.161298][ T253] __sys_sendmsg+0xcd/0x170 [ 9385.161298][ T253] do_syscall_64+0xc6/0x1e0 [ 9385.161298][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9385.161298][ T253] [ 9385.163562][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9385.163562][ T253] netdev_get_by_index+0x5e/0x80 [ 9385.163562][ T253] fib6_nh_init+0x3d8/0x1580 [ 9385.163562][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9385.163562][ T253] ip6_route_add+0x1c/0x140 [ 9385.163562][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9385.163562][ T253] addrconf_add_dev+0xe2/0x170 [ 9385.163562][ T253] inet6_addr_add+0x12f/0xa40 [ 9385.163562][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9385.163562][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9385.163562][ T253] netlink_rcv_skb+0x130/0x360 [ 9385.163562][ T253] netlink_unicast+0x449/0x710 [ 9385.163562][ T253] netlink_sendmsg+0x723/0xbe0 [ 9385.163562][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9385.163562][ T253] ___sys_sendmsg+0xee/0x170 [ 9385.163562][ T253] __sys_sendmsg+0xcd/0x170 [ 9385.163562][ T253] do_syscall_64+0xc6/0x1e0 [ 9385.163562][ T253] [ 9385.165786][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9385.165786][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9385.165786][ T253] ipv6_find_idev+0x102/0x170 [ 9385.165786][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9385.165786][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9385.165786][ T253] netlink_rcv_skb+0x130/0x360 [ 9385.165786][ T253] netlink_unicast+0x449/0x710 [ 9385.165786][ T253] netlink_sendmsg+0x723/0xbe0 [ 9385.165786][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9385.165786][ T253] ___sys_sendmsg+0xee/0x170 [ 9385.165786][ T253] __sys_sendmsg+0xcd/0x170 [ 9385.165786][ T253] do_syscall_64+0xc6/0x1e0 [ 9385.165786][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9385.165786][ T253] [ 9385.167529][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9385.167529][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9385.167529][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9385.167529][ T253] ipv6_find_idev+0x102/0x170 [ 9385.167529][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9385.167529][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9385.167529][ T253] netlink_rcv_skb+0x130/0x360 [ 9385.167529][ T253] netlink_unicast+0x449/0x710 [ 9385.167529][ T253] netlink_sendmsg+0x723/0xbe0 [ 9385.167529][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9385.167529][ T253] ___sys_sendmsg+0xee/0x170 [ 9385.167529][ T253] __sys_sendmsg+0xcd/0x170 [ 9385.167529][ T253] do_syscall_64+0xc6/0x1e0 [ 9385.167529][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9385.167529][ T253] [ 9395.410332][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9395.410748][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9395.410748][ T253] dst_init+0x84/0x4a0 [ 9395.410748][ T253] dst_alloc+0x97/0x150 [ 9395.410748][ T253] ip6_dst_alloc+0x23/0x90 [ 9395.410748][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9395.410748][ T253] ip6_pol_route+0x56f/0x840 [ 9395.410748][ T253] fib6_rule_lookup+0x334/0x630 [ 9395.410748][ T253] ip6_route_output_flags+0x259/0x480 [ 9395.410748][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9395.410748][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9395.410748][ T253] netlink_rcv_skb+0x130/0x360 [ 9395.410748][ T253] netlink_unicast+0x449/0x710 [ 9395.410748][ T253] netlink_sendmsg+0x723/0xbe0 [ 9395.410748][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9395.410748][ T253] ___sys_sendmsg+0xee/0x170 [ 9395.410748][ T253] __sys_sendmsg+0xcd/0x170 [ 9395.410748][ T253] do_syscall_64+0xc6/0x1e0 [ 9395.410748][ T253] [ 9395.412931][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9395.412931][ T253] netdev_get_by_index+0x5e/0x80 [ 9395.412931][ T253] fib6_nh_init+0x3d8/0x1580 [ 9395.412931][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9395.412931][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9395.412931][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9395.412931][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9395.412931][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9395.412931][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9395.412931][ T253] addrconf_dad_begin+0x310/0x670 [ 9395.412931][ T253] addrconf_dad_work+0x10b/0xab0 [ 9395.412931][ T253] process_one_work+0x84d/0x18a0 [ 9395.412931][ T253] worker_thread+0x587/0xd30 [ 9395.412931][ T253] kthread+0x28a/0x350 [ 9395.412931][ T253] ret_from_fork+0x31/0x70 [ 9395.412931][ T253] ret_from_fork_asm+0x1a/0x30 [ 9395.412931][ T253] [ 9395.415075][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9395.415075][ T253] netdev_get_by_index+0x5e/0x80 [ 9395.415075][ T253] fib6_nh_init+0x3d8/0x1580 [ 9395.415075][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9395.415075][ T253] ip6_route_add+0x1c/0x140 [ 9395.415075][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9395.415075][ T253] inet6_addr_add+0x4f8/0xa40 [ 9395.415075][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9395.415075][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9395.415075][ T253] netlink_rcv_skb+0x130/0x360 [ 9395.415075][ T253] netlink_unicast+0x449/0x710 [ 9395.415075][ T253] netlink_sendmsg+0x723/0xbe0 [ 9395.415075][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9395.415075][ T253] ___sys_sendmsg+0xee/0x170 [ 9395.415075][ T253] __sys_sendmsg+0xcd/0x170 [ 9395.415075][ T253] do_syscall_64+0xc6/0x1e0 [ 9395.415075][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9395.415075][ T253] [ 9395.417337][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9395.417337][ T253] netdev_get_by_index+0x5e/0x80 [ 9395.417337][ T253] fib6_nh_init+0x3d8/0x1580 [ 9395.417337][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9395.417337][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9395.417337][ T253] ipv6_add_addr+0x411/0x2000 [ 9395.417337][ T253] inet6_addr_add+0x30e/0xa40 [ 9395.417337][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9395.417337][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9395.417337][ T253] netlink_rcv_skb+0x130/0x360 [ 9395.417337][ T253] netlink_unicast+0x449/0x710 [ 9395.417337][ T253] netlink_sendmsg+0x723/0xbe0 [ 9395.417337][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9395.417337][ T253] ___sys_sendmsg+0xee/0x170 [ 9395.417337][ T253] __sys_sendmsg+0xcd/0x170 [ 9395.417337][ T253] do_syscall_64+0xc6/0x1e0 [ 9395.417337][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9395.417337][ T253] [ 9395.419592][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9395.419592][ T253] netdev_get_by_index+0x5e/0x80 [ 9395.419592][ T253] fib6_nh_init+0x3d8/0x1580 [ 9395.419592][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9395.419592][ T253] ip6_route_add+0x1c/0x140 [ 9395.419592][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9395.419592][ T253] addrconf_add_dev+0xe2/0x170 [ 9395.419592][ T253] inet6_addr_add+0x12f/0xa40 [ 9395.419592][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9395.419592][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9395.419592][ T253] netlink_rcv_skb+0x130/0x360 [ 9395.419592][ T253] netlink_unicast+0x449/0x710 [ 9395.419592][ T253] netlink_sendmsg+0x723/0xbe0 [ 9395.419592][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9395.419592][ T253] ___sys_sendmsg+0xee/0x170 [ 9395.419592][ T253] __sys_sendmsg+0xcd/0x170 [ 9395.419592][ T253] do_syscall_64+0xc6/0x1e0 [ 9395.419592][ T253] [ 9395.421791][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9395.421791][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9395.421791][ T253] ipv6_find_idev+0x102/0x170 [ 9395.421791][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9395.421791][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9395.421791][ T253] netlink_rcv_skb+0x130/0x360 [ 9395.421791][ T253] netlink_unicast+0x449/0x710 [ 9395.421791][ T253] netlink_sendmsg+0x723/0xbe0 [ 9395.421791][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9395.421791][ T253] ___sys_sendmsg+0xee/0x170 [ 9395.421791][ T253] __sys_sendmsg+0xcd/0x170 [ 9395.421791][ T253] do_syscall_64+0xc6/0x1e0 [ 9395.421791][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9395.421791][ T253] [ 9395.423513][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9395.423513][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9395.423513][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9395.423513][ T253] ipv6_find_idev+0x102/0x170 [ 9395.423513][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9395.423513][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9395.423513][ T253] netlink_rcv_skb+0x130/0x360 [ 9395.423513][ T253] netlink_unicast+0x449/0x710 [ 9395.423513][ T253] netlink_sendmsg+0x723/0xbe0 [ 9395.423513][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9395.423513][ T253] ___sys_sendmsg+0xee/0x170 [ 9395.423513][ T253] __sys_sendmsg+0xcd/0x170 [ 9395.423513][ T253] do_syscall_64+0xc6/0x1e0 [ 9395.423513][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9395.423513][ T253] [ 9405.666311][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9405.666736][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9405.666736][ T253] dst_init+0x84/0x4a0 [ 9405.666736][ T253] dst_alloc+0x97/0x150 [ 9405.666736][ T253] ip6_dst_alloc+0x23/0x90 [ 9405.666736][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9405.666736][ T253] ip6_pol_route+0x56f/0x840 [ 9405.666736][ T253] fib6_rule_lookup+0x334/0x630 [ 9405.666736][ T253] ip6_route_output_flags+0x259/0x480 [ 9405.666736][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9405.666736][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9405.666736][ T253] netlink_rcv_skb+0x130/0x360 [ 9405.666736][ T253] netlink_unicast+0x449/0x710 [ 9405.666736][ T253] netlink_sendmsg+0x723/0xbe0 [ 9405.666736][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9405.666736][ T253] ___sys_sendmsg+0xee/0x170 [ 9405.666736][ T253] __sys_sendmsg+0xcd/0x170 [ 9405.666736][ T253] do_syscall_64+0xc6/0x1e0 [ 9405.666736][ T253] [ 9405.668944][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9405.668944][ T253] netdev_get_by_index+0x5e/0x80 [ 9405.668944][ T253] fib6_nh_init+0x3d8/0x1580 [ 9405.668944][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9405.668944][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9405.668944][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9405.668944][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9405.668944][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9405.668944][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9405.668944][ T253] addrconf_dad_begin+0x310/0x670 [ 9405.668944][ T253] addrconf_dad_work+0x10b/0xab0 [ 9405.668944][ T253] process_one_work+0x84d/0x18a0 [ 9405.668944][ T253] worker_thread+0x587/0xd30 [ 9405.668944][ T253] kthread+0x28a/0x350 [ 9405.668944][ T253] ret_from_fork+0x31/0x70 [ 9405.668944][ T253] ret_from_fork_asm+0x1a/0x30 [ 9405.668944][ T253] [ 9405.671110][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9405.671110][ T253] netdev_get_by_index+0x5e/0x80 [ 9405.671110][ T253] fib6_nh_init+0x3d8/0x1580 [ 9405.671110][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9405.671110][ T253] ip6_route_add+0x1c/0x140 [ 9405.671110][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9405.671110][ T253] inet6_addr_add+0x4f8/0xa40 [ 9405.671110][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9405.671110][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9405.671110][ T253] netlink_rcv_skb+0x130/0x360 [ 9405.671110][ T253] netlink_unicast+0x449/0x710 [ 9405.671110][ T253] netlink_sendmsg+0x723/0xbe0 [ 9405.671110][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9405.671110][ T253] ___sys_sendmsg+0xee/0x170 [ 9405.671110][ T253] __sys_sendmsg+0xcd/0x170 [ 9405.671110][ T253] do_syscall_64+0xc6/0x1e0 [ 9405.671110][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9405.671110][ T253] [ 9405.673375][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9405.673375][ T253] netdev_get_by_index+0x5e/0x80 [ 9405.673375][ T253] fib6_nh_init+0x3d8/0x1580 [ 9405.673375][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9405.673375][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9405.673375][ T253] ipv6_add_addr+0x411/0x2000 [ 9405.673375][ T253] inet6_addr_add+0x30e/0xa40 [ 9405.673375][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9405.673375][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9405.673375][ T253] netlink_rcv_skb+0x130/0x360 [ 9405.673375][ T253] netlink_unicast+0x449/0x710 [ 9405.673375][ T253] netlink_sendmsg+0x723/0xbe0 [ 9405.673375][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9405.673375][ T253] ___sys_sendmsg+0xee/0x170 [ 9405.673375][ T253] __sys_sendmsg+0xcd/0x170 [ 9405.673375][ T253] do_syscall_64+0xc6/0x1e0 [ 9405.673375][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9405.673375][ T253] [ 9405.675637][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9405.675637][ T253] netdev_get_by_index+0x5e/0x80 [ 9405.675637][ T253] fib6_nh_init+0x3d8/0x1580 [ 9405.675637][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9405.675637][ T253] ip6_route_add+0x1c/0x140 [ 9405.675637][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9405.675637][ T253] addrconf_add_dev+0xe2/0x170 [ 9405.675637][ T253] inet6_addr_add+0x12f/0xa40 [ 9405.675637][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9405.675637][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9405.675637][ T253] netlink_rcv_skb+0x130/0x360 [ 9405.675637][ T253] netlink_unicast+0x449/0x710 [ 9405.675637][ T253] netlink_sendmsg+0x723/0xbe0 [ 9405.675637][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9405.675637][ T253] ___sys_sendmsg+0xee/0x170 [ 9405.675637][ T253] __sys_sendmsg+0xcd/0x170 [ 9405.675637][ T253] do_syscall_64+0xc6/0x1e0 [ 9405.675637][ T253] [ 9405.677877][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9405.677877][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9405.677877][ T253] ipv6_find_idev+0x102/0x170 [ 9405.677877][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9405.677877][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9405.677877][ T253] netlink_rcv_skb+0x130/0x360 [ 9405.677877][ T253] netlink_unicast+0x449/0x710 [ 9405.677877][ T253] netlink_sendmsg+0x723/0xbe0 [ 9405.677877][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9405.677877][ T253] ___sys_sendmsg+0xee/0x170 [ 9405.677877][ T253] __sys_sendmsg+0xcd/0x170 [ 9405.677877][ T253] do_syscall_64+0xc6/0x1e0 [ 9405.677877][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9405.677877][ T253] [ 9405.680131][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9405.680131][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9405.680131][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9405.680131][ T253] ipv6_find_idev+0x102/0x170 [ 9405.680131][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9405.680131][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9405.680131][ T253] netlink_rcv_skb+0x130/0x360 [ 9405.680131][ T253] netlink_unicast+0x449/0x710 [ 9405.680131][ T253] netlink_sendmsg+0x723/0xbe0 [ 9405.680131][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9405.680131][ T253] ___sys_sendmsg+0xee/0x170 [ 9405.680131][ T253] __sys_sendmsg+0xcd/0x170 [ 9405.680131][ T253] do_syscall_64+0xc6/0x1e0 [ 9405.680131][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9405.680131][ T253] [ 9415.842412][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9415.842824][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9415.842824][ T253] dst_init+0x84/0x4a0 [ 9415.842824][ T253] dst_alloc+0x97/0x150 [ 9415.842824][ T253] ip6_dst_alloc+0x23/0x90 [ 9415.842824][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9415.842824][ T253] ip6_pol_route+0x56f/0x840 [ 9415.842824][ T253] fib6_rule_lookup+0x334/0x630 [ 9415.842824][ T253] ip6_route_output_flags+0x259/0x480 [ 9415.842824][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9415.842824][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9415.842824][ T253] netlink_rcv_skb+0x130/0x360 [ 9415.842824][ T253] netlink_unicast+0x449/0x710 [ 9415.842824][ T253] netlink_sendmsg+0x723/0xbe0 [ 9415.842824][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9415.842824][ T253] ___sys_sendmsg+0xee/0x170 [ 9415.842824][ T253] __sys_sendmsg+0xcd/0x170 [ 9415.842824][ T253] do_syscall_64+0xc6/0x1e0 [ 9415.842824][ T253] [ 9415.845019][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9415.845019][ T253] netdev_get_by_index+0x5e/0x80 [ 9415.845019][ T253] fib6_nh_init+0x3d8/0x1580 [ 9415.845019][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9415.845019][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9415.845019][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9415.845019][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9415.845019][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9415.845019][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9415.845019][ T253] addrconf_dad_begin+0x310/0x670 [ 9415.845019][ T253] addrconf_dad_work+0x10b/0xab0 [ 9415.845019][ T253] process_one_work+0x84d/0x18a0 [ 9415.845019][ T253] worker_thread+0x587/0xd30 [ 9415.845019][ T253] kthread+0x28a/0x350 [ 9415.845019][ T253] ret_from_fork+0x31/0x70 [ 9415.845019][ T253] ret_from_fork_asm+0x1a/0x30 [ 9415.845019][ T253] [ 9415.847182][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9415.847182][ T253] netdev_get_by_index+0x5e/0x80 [ 9415.847182][ T253] fib6_nh_init+0x3d8/0x1580 [ 9415.847182][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9415.847182][ T253] ip6_route_add+0x1c/0x140 [ 9415.847182][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9415.847182][ T253] inet6_addr_add+0x4f8/0xa40 [ 9415.847182][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9415.847182][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9415.847182][ T253] netlink_rcv_skb+0x130/0x360 [ 9415.847182][ T253] netlink_unicast+0x449/0x710 [ 9415.847182][ T253] netlink_sendmsg+0x723/0xbe0 [ 9415.847182][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9415.847182][ T253] ___sys_sendmsg+0xee/0x170 [ 9415.847182][ T253] __sys_sendmsg+0xcd/0x170 [ 9415.847182][ T253] do_syscall_64+0xc6/0x1e0 [ 9415.847182][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9415.847182][ T253] [ 9415.849431][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9415.849431][ T253] netdev_get_by_index+0x5e/0x80 [ 9415.849431][ T253] fib6_nh_init+0x3d8/0x1580 [ 9415.849431][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9415.849431][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9415.849431][ T253] ipv6_add_addr+0x411/0x2000 [ 9415.849431][ T253] inet6_addr_add+0x30e/0xa40 [ 9415.849431][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9415.849431][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9415.849431][ T253] netlink_rcv_skb+0x130/0x360 [ 9415.849431][ T253] netlink_unicast+0x449/0x710 [ 9415.849431][ T253] netlink_sendmsg+0x723/0xbe0 [ 9415.849431][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9415.849431][ T253] ___sys_sendmsg+0xee/0x170 [ 9415.849431][ T253] __sys_sendmsg+0xcd/0x170 [ 9415.849431][ T253] do_syscall_64+0xc6/0x1e0 [ 9415.849431][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9415.849431][ T253] [ 9415.851668][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9415.851668][ T253] netdev_get_by_index+0x5e/0x80 [ 9415.851668][ T253] fib6_nh_init+0x3d8/0x1580 [ 9415.851668][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9415.851668][ T253] ip6_route_add+0x1c/0x140 [ 9415.851668][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9415.851668][ T253] addrconf_add_dev+0xe2/0x170 [ 9415.851668][ T253] inet6_addr_add+0x12f/0xa40 [ 9415.851668][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9415.851668][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9415.851668][ T253] netlink_rcv_skb+0x130/0x360 [ 9415.851668][ T253] netlink_unicast+0x449/0x710 [ 9415.851668][ T253] netlink_sendmsg+0x723/0xbe0 [ 9415.851668][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9415.851668][ T253] ___sys_sendmsg+0xee/0x170 [ 9415.851668][ T253] __sys_sendmsg+0xcd/0x170 [ 9415.851668][ T253] do_syscall_64+0xc6/0x1e0 [ 9415.851668][ T253] [ 9415.853864][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9415.853864][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9415.853864][ T253] ipv6_find_idev+0x102/0x170 [ 9415.853864][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9415.853864][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9415.853864][ T253] netlink_rcv_skb+0x130/0x360 [ 9415.853864][ T253] netlink_unicast+0x449/0x710 [ 9415.853864][ T253] netlink_sendmsg+0x723/0xbe0 [ 9415.853864][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9415.853864][ T253] ___sys_sendmsg+0xee/0x170 [ 9415.853864][ T253] __sys_sendmsg+0xcd/0x170 [ 9415.853864][ T253] do_syscall_64+0xc6/0x1e0 [ 9415.853864][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9415.853864][ T253] [ 9415.855581][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9415.855581][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9415.855581][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9415.855581][ T253] ipv6_find_idev+0x102/0x170 [ 9415.855581][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9415.855581][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9415.855581][ T253] netlink_rcv_skb+0x130/0x360 [ 9415.855581][ T253] netlink_unicast+0x449/0x710 [ 9415.855581][ T253] netlink_sendmsg+0x723/0xbe0 [ 9415.855581][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9415.855581][ T253] ___sys_sendmsg+0xee/0x170 [ 9415.855581][ T253] __sys_sendmsg+0xcd/0x170 [ 9415.855581][ T253] do_syscall_64+0xc6/0x1e0 [ 9415.855581][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9415.855581][ T253] [ 9426.098308][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9426.098728][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9426.098728][ T253] dst_init+0x84/0x4a0 [ 9426.098728][ T253] dst_alloc+0x97/0x150 [ 9426.098728][ T253] ip6_dst_alloc+0x23/0x90 [ 9426.098728][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9426.098728][ T253] ip6_pol_route+0x56f/0x840 [ 9426.098728][ T253] fib6_rule_lookup+0x334/0x630 [ 9426.098728][ T253] ip6_route_output_flags+0x259/0x480 [ 9426.098728][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9426.098728][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9426.098728][ T253] netlink_rcv_skb+0x130/0x360 [ 9426.098728][ T253] netlink_unicast+0x449/0x710 [ 9426.098728][ T253] netlink_sendmsg+0x723/0xbe0 [ 9426.098728][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9426.098728][ T253] ___sys_sendmsg+0xee/0x170 [ 9426.098728][ T253] __sys_sendmsg+0xcd/0x170 [ 9426.098728][ T253] do_syscall_64+0xc6/0x1e0 [ 9426.098728][ T253] [ 9426.100926][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9426.100926][ T253] netdev_get_by_index+0x5e/0x80 [ 9426.100926][ T253] fib6_nh_init+0x3d8/0x1580 [ 9426.100926][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9426.100926][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9426.100926][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9426.100926][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9426.100926][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9426.100926][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9426.100926][ T253] addrconf_dad_begin+0x310/0x670 [ 9426.100926][ T253] addrconf_dad_work+0x10b/0xab0 [ 9426.100926][ T253] process_one_work+0x84d/0x18a0 [ 9426.100926][ T253] worker_thread+0x587/0xd30 [ 9426.100926][ T253] kthread+0x28a/0x350 [ 9426.100926][ T253] ret_from_fork+0x31/0x70 [ 9426.100926][ T253] ret_from_fork_asm+0x1a/0x30 [ 9426.100926][ T253] [ 9426.103073][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9426.103073][ T253] netdev_get_by_index+0x5e/0x80 [ 9426.103073][ T253] fib6_nh_init+0x3d8/0x1580 [ 9426.103073][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9426.103073][ T253] ip6_route_add+0x1c/0x140 [ 9426.103073][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9426.103073][ T253] inet6_addr_add+0x4f8/0xa40 [ 9426.103073][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9426.103073][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9426.103073][ T253] netlink_rcv_skb+0x130/0x360 [ 9426.103073][ T253] netlink_unicast+0x449/0x710 [ 9426.103073][ T253] netlink_sendmsg+0x723/0xbe0 [ 9426.103073][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9426.103073][ T253] ___sys_sendmsg+0xee/0x170 [ 9426.103073][ T253] __sys_sendmsg+0xcd/0x170 [ 9426.103073][ T253] do_syscall_64+0xc6/0x1e0 [ 9426.103073][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9426.103073][ T253] [ 9426.105320][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9426.105320][ T253] netdev_get_by_index+0x5e/0x80 [ 9426.105320][ T253] fib6_nh_init+0x3d8/0x1580 [ 9426.105320][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9426.105320][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9426.105320][ T253] ipv6_add_addr+0x411/0x2000 [ 9426.105320][ T253] inet6_addr_add+0x30e/0xa40 [ 9426.105320][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9426.105320][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9426.105320][ T253] netlink_rcv_skb+0x130/0x360 [ 9426.105320][ T253] netlink_unicast+0x449/0x710 [ 9426.105320][ T253] netlink_sendmsg+0x723/0xbe0 [ 9426.105320][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9426.105320][ T253] ___sys_sendmsg+0xee/0x170 [ 9426.105320][ T253] __sys_sendmsg+0xcd/0x170 [ 9426.105320][ T253] do_syscall_64+0xc6/0x1e0 [ 9426.105320][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9426.105320][ T253] [ 9426.107568][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9426.107568][ T253] netdev_get_by_index+0x5e/0x80 [ 9426.107568][ T253] fib6_nh_init+0x3d8/0x1580 [ 9426.107568][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9426.107568][ T253] ip6_route_add+0x1c/0x140 [ 9426.107568][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9426.107568][ T253] addrconf_add_dev+0xe2/0x170 [ 9426.107568][ T253] inet6_addr_add+0x12f/0xa40 [ 9426.107568][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9426.107568][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9426.107568][ T253] netlink_rcv_skb+0x130/0x360 [ 9426.107568][ T253] netlink_unicast+0x449/0x710 [ 9426.107568][ T253] netlink_sendmsg+0x723/0xbe0 [ 9426.107568][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9426.107568][ T253] ___sys_sendmsg+0xee/0x170 [ 9426.107568][ T253] __sys_sendmsg+0xcd/0x170 [ 9426.107568][ T253] do_syscall_64+0xc6/0x1e0 [ 9426.107568][ T253] [ 9426.109765][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9426.109765][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9426.109765][ T253] ipv6_find_idev+0x102/0x170 [ 9426.109765][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9426.109765][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9426.109765][ T253] netlink_rcv_skb+0x130/0x360 [ 9426.109765][ T253] netlink_unicast+0x449/0x710 [ 9426.109765][ T253] netlink_sendmsg+0x723/0xbe0 [ 9426.109765][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9426.109765][ T253] ___sys_sendmsg+0xee/0x170 [ 9426.109765][ T253] __sys_sendmsg+0xcd/0x170 [ 9426.109765][ T253] do_syscall_64+0xc6/0x1e0 [ 9426.109765][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9426.109765][ T253] [ 9426.111486][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9426.111486][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9426.111486][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9426.111486][ T253] ipv6_find_idev+0x102/0x170 [ 9426.111486][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9426.111486][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9426.111486][ T253] netlink_rcv_skb+0x130/0x360 [ 9426.111486][ T253] netlink_unicast+0x449/0x710 [ 9426.111486][ T253] netlink_sendmsg+0x723/0xbe0 [ 9426.111486][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9426.111486][ T253] ___sys_sendmsg+0xee/0x170 [ 9426.111486][ T253] __sys_sendmsg+0xcd/0x170 [ 9426.111486][ T253] do_syscall_64+0xc6/0x1e0 [ 9426.111486][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9426.111486][ T253] [ 9436.130315][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9436.130725][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9436.130725][ T253] dst_init+0x84/0x4a0 [ 9436.130725][ T253] dst_alloc+0x97/0x150 [ 9436.130725][ T253] ip6_dst_alloc+0x23/0x90 [ 9436.130725][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9436.130725][ T253] ip6_pol_route+0x56f/0x840 [ 9436.130725][ T253] fib6_rule_lookup+0x334/0x630 [ 9436.130725][ T253] ip6_route_output_flags+0x259/0x480 [ 9436.130725][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9436.130725][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9436.130725][ T253] netlink_rcv_skb+0x130/0x360 [ 9436.130725][ T253] netlink_unicast+0x449/0x710 [ 9436.130725][ T253] netlink_sendmsg+0x723/0xbe0 [ 9436.130725][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9436.130725][ T253] ___sys_sendmsg+0xee/0x170 [ 9436.130725][ T253] __sys_sendmsg+0xcd/0x170 [ 9436.130725][ T253] do_syscall_64+0xc6/0x1e0 [ 9436.130725][ T253] [ 9436.132907][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9436.132907][ T253] netdev_get_by_index+0x5e/0x80 [ 9436.132907][ T253] fib6_nh_init+0x3d8/0x1580 [ 9436.132907][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9436.132907][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9436.132907][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9436.132907][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9436.132907][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9436.132907][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9436.132907][ T253] addrconf_dad_begin+0x310/0x670 [ 9436.132907][ T253] addrconf_dad_work+0x10b/0xab0 [ 9436.132907][ T253] process_one_work+0x84d/0x18a0 [ 9436.132907][ T253] worker_thread+0x587/0xd30 [ 9436.132907][ T253] kthread+0x28a/0x350 [ 9436.132907][ T253] ret_from_fork+0x31/0x70 [ 9436.132907][ T253] ret_from_fork_asm+0x1a/0x30 [ 9436.132907][ T253] [ 9436.135050][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9436.135050][ T253] netdev_get_by_index+0x5e/0x80 [ 9436.135050][ T253] fib6_nh_init+0x3d8/0x1580 [ 9436.135050][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9436.135050][ T253] ip6_route_add+0x1c/0x140 [ 9436.135050][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9436.135050][ T253] inet6_addr_add+0x4f8/0xa40 [ 9436.135050][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9436.135050][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9436.135050][ T253] netlink_rcv_skb+0x130/0x360 [ 9436.135050][ T253] netlink_unicast+0x449/0x710 [ 9436.135050][ T253] netlink_sendmsg+0x723/0xbe0 [ 9436.135050][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9436.135050][ T253] ___sys_sendmsg+0xee/0x170 [ 9436.135050][ T253] __sys_sendmsg+0xcd/0x170 [ 9436.135050][ T253] do_syscall_64+0xc6/0x1e0 [ 9436.135050][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9436.135050][ T253] [ 9436.137295][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9436.137295][ T253] netdev_get_by_index+0x5e/0x80 [ 9436.137295][ T253] fib6_nh_init+0x3d8/0x1580 [ 9436.137295][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9436.137295][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9436.137295][ T253] ipv6_add_addr+0x411/0x2000 [ 9436.137295][ T253] inet6_addr_add+0x30e/0xa40 [ 9436.137295][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9436.137295][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9436.137295][ T253] netlink_rcv_skb+0x130/0x360 [ 9436.137295][ T253] netlink_unicast+0x449/0x710 [ 9436.137295][ T253] netlink_sendmsg+0x723/0xbe0 [ 9436.137295][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9436.137295][ T253] ___sys_sendmsg+0xee/0x170 [ 9436.137295][ T253] __sys_sendmsg+0xcd/0x170 [ 9436.137295][ T253] do_syscall_64+0xc6/0x1e0 [ 9436.137295][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9436.137295][ T253] [ 9436.139548][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9436.139548][ T253] netdev_get_by_index+0x5e/0x80 [ 9436.139548][ T253] fib6_nh_init+0x3d8/0x1580 [ 9436.139548][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9436.139548][ T253] ip6_route_add+0x1c/0x140 [ 9436.139548][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9436.139548][ T253] addrconf_add_dev+0xe2/0x170 [ 9436.139548][ T253] inet6_addr_add+0x12f/0xa40 [ 9436.139548][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9436.139548][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9436.139548][ T253] netlink_rcv_skb+0x130/0x360 [ 9436.139548][ T253] netlink_unicast+0x449/0x710 [ 9436.139548][ T253] netlink_sendmsg+0x723/0xbe0 [ 9436.139548][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9436.139548][ T253] ___sys_sendmsg+0xee/0x170 [ 9436.139548][ T253] __sys_sendmsg+0xcd/0x170 [ 9436.139548][ T253] do_syscall_64+0xc6/0x1e0 [ 9436.139548][ T253] [ 9436.141742][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9436.141742][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9436.141742][ T253] ipv6_find_idev+0x102/0x170 [ 9436.141742][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9436.141742][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9436.141742][ T253] netlink_rcv_skb+0x130/0x360 [ 9436.141742][ T253] netlink_unicast+0x449/0x710 [ 9436.141742][ T253] netlink_sendmsg+0x723/0xbe0 [ 9436.141742][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9436.141742][ T253] ___sys_sendmsg+0xee/0x170 [ 9436.141742][ T253] __sys_sendmsg+0xcd/0x170 [ 9436.141742][ T253] do_syscall_64+0xc6/0x1e0 [ 9436.141742][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9436.141742][ T253] [ 9436.143460][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9436.143460][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9436.143460][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9436.143460][ T253] ipv6_find_idev+0x102/0x170 [ 9436.143460][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9436.143460][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9436.143460][ T253] netlink_rcv_skb+0x130/0x360 [ 9436.143460][ T253] netlink_unicast+0x449/0x710 [ 9436.143460][ T253] netlink_sendmsg+0x723/0xbe0 [ 9436.143460][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9436.143460][ T253] ___sys_sendmsg+0xee/0x170 [ 9436.143460][ T253] __sys_sendmsg+0xcd/0x170 [ 9436.143460][ T253] do_syscall_64+0xc6/0x1e0 [ 9436.143460][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9436.143460][ T253] [ 9446.386298][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9446.386700][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9446.386700][ T253] dst_init+0x84/0x4a0 [ 9446.386700][ T253] dst_alloc+0x97/0x150 [ 9446.386700][ T253] ip6_dst_alloc+0x23/0x90 [ 9446.386700][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9446.386700][ T253] ip6_pol_route+0x56f/0x840 [ 9446.386700][ T253] fib6_rule_lookup+0x334/0x630 [ 9446.386700][ T253] ip6_route_output_flags+0x259/0x480 [ 9446.386700][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9446.386700][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9446.386700][ T253] netlink_rcv_skb+0x130/0x360 [ 9446.386700][ T253] netlink_unicast+0x449/0x710 [ 9446.386700][ T253] netlink_sendmsg+0x723/0xbe0 [ 9446.386700][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9446.386700][ T253] ___sys_sendmsg+0xee/0x170 [ 9446.386700][ T253] __sys_sendmsg+0xcd/0x170 [ 9446.386700][ T253] do_syscall_64+0xc6/0x1e0 [ 9446.386700][ T253] [ 9446.388895][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9446.388895][ T253] netdev_get_by_index+0x5e/0x80 [ 9446.388895][ T253] fib6_nh_init+0x3d8/0x1580 [ 9446.388895][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9446.388895][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9446.388895][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9446.388895][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9446.388895][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9446.388895][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9446.388895][ T253] addrconf_dad_begin+0x310/0x670 [ 9446.388895][ T253] addrconf_dad_work+0x10b/0xab0 [ 9446.388895][ T253] process_one_work+0x84d/0x18a0 [ 9446.388895][ T253] worker_thread+0x587/0xd30 [ 9446.388895][ T253] kthread+0x28a/0x350 [ 9446.388895][ T253] ret_from_fork+0x31/0x70 [ 9446.388895][ T253] ret_from_fork_asm+0x1a/0x30 [ 9446.388895][ T253] [ 9446.391055][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9446.391055][ T253] netdev_get_by_index+0x5e/0x80 [ 9446.391055][ T253] fib6_nh_init+0x3d8/0x1580 [ 9446.391055][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9446.391055][ T253] ip6_route_add+0x1c/0x140 [ 9446.391055][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9446.391055][ T253] inet6_addr_add+0x4f8/0xa40 [ 9446.391055][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9446.391055][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9446.391055][ T253] netlink_rcv_skb+0x130/0x360 [ 9446.391055][ T253] netlink_unicast+0x449/0x710 [ 9446.391055][ T253] netlink_sendmsg+0x723/0xbe0 [ 9446.391055][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9446.391055][ T253] ___sys_sendmsg+0xee/0x170 [ 9446.391055][ T253] __sys_sendmsg+0xcd/0x170 [ 9446.391055][ T253] do_syscall_64+0xc6/0x1e0 [ 9446.391055][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9446.391055][ T253] [ 9446.393302][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9446.393302][ T253] netdev_get_by_index+0x5e/0x80 [ 9446.393302][ T253] fib6_nh_init+0x3d8/0x1580 [ 9446.393302][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9446.393302][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9446.393302][ T253] ipv6_add_addr+0x411/0x2000 [ 9446.393302][ T253] inet6_addr_add+0x30e/0xa40 [ 9446.393302][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9446.393302][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9446.393302][ T253] netlink_rcv_skb+0x130/0x360 [ 9446.393302][ T253] netlink_unicast+0x449/0x710 [ 9446.393302][ T253] netlink_sendmsg+0x723/0xbe0 [ 9446.393302][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9446.393302][ T253] ___sys_sendmsg+0xee/0x170 [ 9446.393302][ T253] __sys_sendmsg+0xcd/0x170 [ 9446.393302][ T253] do_syscall_64+0xc6/0x1e0 [ 9446.393302][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9446.393302][ T253] [ 9446.395539][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9446.395539][ T253] netdev_get_by_index+0x5e/0x80 [ 9446.395539][ T253] fib6_nh_init+0x3d8/0x1580 [ 9446.395539][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9446.395539][ T253] ip6_route_add+0x1c/0x140 [ 9446.395539][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9446.395539][ T253] addrconf_add_dev+0xe2/0x170 [ 9446.395539][ T253] inet6_addr_add+0x12f/0xa40 [ 9446.395539][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9446.395539][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9446.395539][ T253] netlink_rcv_skb+0x130/0x360 [ 9446.395539][ T253] netlink_unicast+0x449/0x710 [ 9446.395539][ T253] netlink_sendmsg+0x723/0xbe0 [ 9446.395539][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9446.395539][ T253] ___sys_sendmsg+0xee/0x170 [ 9446.395539][ T253] __sys_sendmsg+0xcd/0x170 [ 9446.395539][ T253] do_syscall_64+0xc6/0x1e0 [ 9446.395539][ T253] [ 9446.397748][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9446.397748][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9446.397748][ T253] ipv6_find_idev+0x102/0x170 [ 9446.397748][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9446.397748][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9446.397748][ T253] netlink_rcv_skb+0x130/0x360 [ 9446.397748][ T253] netlink_unicast+0x449/0x710 [ 9446.397748][ T253] netlink_sendmsg+0x723/0xbe0 [ 9446.397748][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9446.397748][ T253] ___sys_sendmsg+0xee/0x170 [ 9446.397748][ T253] __sys_sendmsg+0xcd/0x170 [ 9446.397748][ T253] do_syscall_64+0xc6/0x1e0 [ 9446.397748][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9446.397748][ T253] [ 9446.399471][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9446.399471][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9446.399471][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9446.399471][ T253] ipv6_find_idev+0x102/0x170 [ 9446.399471][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9446.399471][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9446.399471][ T253] netlink_rcv_skb+0x130/0x360 [ 9446.399471][ T253] netlink_unicast+0x449/0x710 [ 9446.399471][ T253] netlink_sendmsg+0x723/0xbe0 [ 9446.399471][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9446.399471][ T253] ___sys_sendmsg+0xee/0x170 [ 9446.399471][ T253] __sys_sendmsg+0xcd/0x170 [ 9446.399471][ T253] do_syscall_64+0xc6/0x1e0 [ 9446.399471][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9446.399471][ T253] [ 9456.594318][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9456.594727][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9456.594727][ T253] dst_init+0x84/0x4a0 [ 9456.594727][ T253] dst_alloc+0x97/0x150 [ 9456.594727][ T253] ip6_dst_alloc+0x23/0x90 [ 9456.594727][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9456.594727][ T253] ip6_pol_route+0x56f/0x840 [ 9456.594727][ T253] fib6_rule_lookup+0x334/0x630 [ 9456.594727][ T253] ip6_route_output_flags+0x259/0x480 [ 9456.594727][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9456.594727][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9456.594727][ T253] netlink_rcv_skb+0x130/0x360 [ 9456.594727][ T253] netlink_unicast+0x449/0x710 [ 9456.594727][ T253] netlink_sendmsg+0x723/0xbe0 [ 9456.594727][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9456.594727][ T253] ___sys_sendmsg+0xee/0x170 [ 9456.594727][ T253] __sys_sendmsg+0xcd/0x170 [ 9456.594727][ T253] do_syscall_64+0xc6/0x1e0 [ 9456.594727][ T253] [ 9456.596940][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9456.596940][ T253] netdev_get_by_index+0x5e/0x80 [ 9456.596940][ T253] fib6_nh_init+0x3d8/0x1580 [ 9456.596940][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9456.596940][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9456.596940][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9456.596940][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9456.596940][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9456.596940][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9456.596940][ T253] addrconf_dad_begin+0x310/0x670 [ 9456.596940][ T253] addrconf_dad_work+0x10b/0xab0 [ 9456.596940][ T253] process_one_work+0x84d/0x18a0 [ 9456.596940][ T253] worker_thread+0x587/0xd30 [ 9456.596940][ T253] kthread+0x28a/0x350 [ 9456.596940][ T253] ret_from_fork+0x31/0x70 [ 9456.596940][ T253] ret_from_fork_asm+0x1a/0x30 [ 9456.596940][ T253] [ 9456.599991][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9456.599991][ T253] netdev_get_by_index+0x5e/0x80 [ 9456.599991][ T253] fib6_nh_init+0x3d8/0x1580 [ 9456.599991][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9456.599991][ T253] ip6_route_add+0x1c/0x140 [ 9456.599991][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9456.599991][ T253] inet6_addr_add+0x4f8/0xa40 [ 9456.599991][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9456.599991][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9456.599991][ T253] netlink_rcv_skb+0x130/0x360 [ 9456.599991][ T253] netlink_unicast+0x449/0x710 [ 9456.599991][ T253] netlink_sendmsg+0x723/0xbe0 [ 9456.599991][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9456.599991][ T253] ___sys_sendmsg+0xee/0x170 [ 9456.599991][ T253] __sys_sendmsg+0xcd/0x170 [ 9456.599991][ T253] do_syscall_64+0xc6/0x1e0 [ 9456.599991][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9456.599991][ T253] [ 9456.602244][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9456.602244][ T253] netdev_get_by_index+0x5e/0x80 [ 9456.602244][ T253] fib6_nh_init+0x3d8/0x1580 [ 9456.602244][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9456.602244][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9456.602244][ T253] ipv6_add_addr+0x411/0x2000 [ 9456.602244][ T253] inet6_addr_add+0x30e/0xa40 [ 9456.602244][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9456.602244][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9456.602244][ T253] netlink_rcv_skb+0x130/0x360 [ 9456.602244][ T253] netlink_unicast+0x449/0x710 [ 9456.602244][ T253] netlink_sendmsg+0x723/0xbe0 [ 9456.602244][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9456.602244][ T253] ___sys_sendmsg+0xee/0x170 [ 9456.602244][ T253] __sys_sendmsg+0xcd/0x170 [ 9456.602244][ T253] do_syscall_64+0xc6/0x1e0 [ 9456.602244][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9456.602244][ T253] [ 9456.604484][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9456.604484][ T253] netdev_get_by_index+0x5e/0x80 [ 9456.604484][ T253] fib6_nh_init+0x3d8/0x1580 [ 9456.604484][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9456.604484][ T253] ip6_route_add+0x1c/0x140 [ 9456.604484][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9456.604484][ T253] addrconf_add_dev+0xe2/0x170 [ 9456.604484][ T253] inet6_addr_add+0x12f/0xa40 [ 9456.604484][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9456.604484][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9456.604484][ T253] netlink_rcv_skb+0x130/0x360 [ 9456.604484][ T253] netlink_unicast+0x449/0x710 [ 9456.604484][ T253] netlink_sendmsg+0x723/0xbe0 [ 9456.604484][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9456.604484][ T253] ___sys_sendmsg+0xee/0x170 [ 9456.604484][ T253] __sys_sendmsg+0xcd/0x170 [ 9456.604484][ T253] do_syscall_64+0xc6/0x1e0 [ 9456.604484][ T253] [ 9456.606696][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9456.606696][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9456.606696][ T253] ipv6_find_idev+0x102/0x170 [ 9456.606696][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9456.606696][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9456.606696][ T253] netlink_rcv_skb+0x130/0x360 [ 9456.606696][ T253] netlink_unicast+0x449/0x710 [ 9456.606696][ T253] netlink_sendmsg+0x723/0xbe0 [ 9456.606696][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9456.606696][ T253] ___sys_sendmsg+0xee/0x170 [ 9456.606696][ T253] __sys_sendmsg+0xcd/0x170 [ 9456.606696][ T253] do_syscall_64+0xc6/0x1e0 [ 9456.606696][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9456.606696][ T253] [ 9456.608422][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9456.608422][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9456.608422][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9456.608422][ T253] ipv6_find_idev+0x102/0x170 [ 9456.608422][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9456.608422][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9456.608422][ T253] netlink_rcv_skb+0x130/0x360 [ 9456.608422][ T253] netlink_unicast+0x449/0x710 [ 9456.608422][ T253] netlink_sendmsg+0x723/0xbe0 [ 9456.608422][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9456.608422][ T253] ___sys_sendmsg+0xee/0x170 [ 9456.608422][ T253] __sys_sendmsg+0xcd/0x170 [ 9456.608422][ T253] do_syscall_64+0xc6/0x1e0 [ 9456.608422][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9456.608422][ T253] [ 9466.690365][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9466.690784][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9466.690784][ T253] dst_init+0x84/0x4a0 [ 9466.690784][ T253] dst_alloc+0x97/0x150 [ 9466.690784][ T253] ip6_dst_alloc+0x23/0x90 [ 9466.690784][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9466.690784][ T253] ip6_pol_route+0x56f/0x840 [ 9466.690784][ T253] fib6_rule_lookup+0x334/0x630 [ 9466.690784][ T253] ip6_route_output_flags+0x259/0x480 [ 9466.690784][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9466.690784][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9466.690784][ T253] netlink_rcv_skb+0x130/0x360 [ 9466.690784][ T253] netlink_unicast+0x449/0x710 [ 9466.690784][ T253] netlink_sendmsg+0x723/0xbe0 [ 9466.690784][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9466.690784][ T253] ___sys_sendmsg+0xee/0x170 [ 9466.690784][ T253] __sys_sendmsg+0xcd/0x170 [ 9466.690784][ T253] do_syscall_64+0xc6/0x1e0 [ 9466.690784][ T253] [ 9466.692973][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9466.692973][ T253] netdev_get_by_index+0x5e/0x80 [ 9466.692973][ T253] fib6_nh_init+0x3d8/0x1580 [ 9466.692973][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9466.692973][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9466.692973][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9466.692973][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9466.692973][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9466.692973][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9466.692973][ T253] addrconf_dad_begin+0x310/0x670 [ 9466.692973][ T253] addrconf_dad_work+0x10b/0xab0 [ 9466.692973][ T253] process_one_work+0x84d/0x18a0 [ 9466.692973][ T253] worker_thread+0x587/0xd30 [ 9466.692973][ T253] kthread+0x28a/0x350 [ 9466.692973][ T253] ret_from_fork+0x31/0x70 [ 9466.692973][ T253] ret_from_fork_asm+0x1a/0x30 [ 9466.692973][ T253] [ 9466.695116][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9466.695116][ T253] netdev_get_by_index+0x5e/0x80 [ 9466.695116][ T253] fib6_nh_init+0x3d8/0x1580 [ 9466.695116][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9466.695116][ T253] ip6_route_add+0x1c/0x140 [ 9466.695116][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9466.695116][ T253] inet6_addr_add+0x4f8/0xa40 [ 9466.695116][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9466.695116][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9466.695116][ T253] netlink_rcv_skb+0x130/0x360 [ 9466.695116][ T253] netlink_unicast+0x449/0x710 [ 9466.695116][ T253] netlink_sendmsg+0x723/0xbe0 [ 9466.695116][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9466.695116][ T253] ___sys_sendmsg+0xee/0x170 [ 9466.695116][ T253] __sys_sendmsg+0xcd/0x170 [ 9466.695116][ T253] do_syscall_64+0xc6/0x1e0 [ 9466.695116][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9466.695116][ T253] [ 9466.697394][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9466.697394][ T253] netdev_get_by_index+0x5e/0x80 [ 9466.697394][ T253] fib6_nh_init+0x3d8/0x1580 [ 9466.697394][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9466.697394][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9466.697394][ T253] ipv6_add_addr+0x411/0x2000 [ 9466.697394][ T253] inet6_addr_add+0x30e/0xa40 [ 9466.697394][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9466.697394][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9466.697394][ T253] netlink_rcv_skb+0x130/0x360 [ 9466.697394][ T253] netlink_unicast+0x449/0x710 [ 9466.697394][ T253] netlink_sendmsg+0x723/0xbe0 [ 9466.697394][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9466.697394][ T253] ___sys_sendmsg+0xee/0x170 [ 9466.697394][ T253] __sys_sendmsg+0xcd/0x170 [ 9466.697394][ T253] do_syscall_64+0xc6/0x1e0 [ 9466.697394][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9466.697394][ T253] [ 9466.699629][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9466.699629][ T253] netdev_get_by_index+0x5e/0x80 [ 9466.699629][ T253] fib6_nh_init+0x3d8/0x1580 [ 9466.699629][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9466.699629][ T253] ip6_route_add+0x1c/0x140 [ 9466.699629][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9466.699629][ T253] addrconf_add_dev+0xe2/0x170 [ 9466.699629][ T253] inet6_addr_add+0x12f/0xa40 [ 9466.699629][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9466.699629][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9466.699629][ T253] netlink_rcv_skb+0x130/0x360 [ 9466.699629][ T253] netlink_unicast+0x449/0x710 [ 9466.699629][ T253] netlink_sendmsg+0x723/0xbe0 [ 9466.699629][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9466.699629][ T253] ___sys_sendmsg+0xee/0x170 [ 9466.699629][ T253] __sys_sendmsg+0xcd/0x170 [ 9466.699629][ T253] do_syscall_64+0xc6/0x1e0 [ 9466.699629][ T253] [ 9466.701828][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9466.701828][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9466.701828][ T253] ipv6_find_idev+0x102/0x170 [ 9466.701828][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9466.701828][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9466.701828][ T253] netlink_rcv_skb+0x130/0x360 [ 9466.701828][ T253] netlink_unicast+0x449/0x710 [ 9466.701828][ T253] netlink_sendmsg+0x723/0xbe0 [ 9466.701828][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9466.701828][ T253] ___sys_sendmsg+0xee/0x170 [ 9466.701828][ T253] __sys_sendmsg+0xcd/0x170 [ 9466.701828][ T253] do_syscall_64+0xc6/0x1e0 [ 9466.701828][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9466.701828][ T253] [ 9466.703548][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9466.703548][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9466.703548][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9466.703548][ T253] ipv6_find_idev+0x102/0x170 [ 9466.703548][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9466.703548][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9466.703548][ T253] netlink_rcv_skb+0x130/0x360 [ 9466.703548][ T253] netlink_unicast+0x449/0x710 [ 9466.703548][ T253] netlink_sendmsg+0x723/0xbe0 [ 9466.703548][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9466.703548][ T253] ___sys_sendmsg+0xee/0x170 [ 9466.703548][ T253] __sys_sendmsg+0xcd/0x170 [ 9466.703548][ T253] do_syscall_64+0xc6/0x1e0 [ 9466.703548][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9466.703548][ T253] [ 9476.898297][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9476.898704][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9476.898704][ T253] dst_init+0x84/0x4a0 [ 9476.898704][ T253] dst_alloc+0x97/0x150 [ 9476.898704][ T253] ip6_dst_alloc+0x23/0x90 [ 9476.898704][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9476.898704][ T253] ip6_pol_route+0x56f/0x840 [ 9476.898704][ T253] fib6_rule_lookup+0x334/0x630 [ 9476.898704][ T253] ip6_route_output_flags+0x259/0x480 [ 9476.898704][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9476.898704][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9476.898704][ T253] netlink_rcv_skb+0x130/0x360 [ 9476.898704][ T253] netlink_unicast+0x449/0x710 [ 9476.898704][ T253] netlink_sendmsg+0x723/0xbe0 [ 9476.898704][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9476.898704][ T253] ___sys_sendmsg+0xee/0x170 [ 9476.898704][ T253] __sys_sendmsg+0xcd/0x170 [ 9476.898704][ T253] do_syscall_64+0xc6/0x1e0 [ 9476.898704][ T253] [ 9476.900906][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9476.900906][ T253] netdev_get_by_index+0x5e/0x80 [ 9476.900906][ T253] fib6_nh_init+0x3d8/0x1580 [ 9476.900906][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9476.900906][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9476.900906][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9476.900906][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9476.900906][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9476.900906][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9476.900906][ T253] addrconf_dad_begin+0x310/0x670 [ 9476.900906][ T253] addrconf_dad_work+0x10b/0xab0 [ 9476.900906][ T253] process_one_work+0x84d/0x18a0 [ 9476.900906][ T253] worker_thread+0x587/0xd30 [ 9476.900906][ T253] kthread+0x28a/0x350 [ 9476.900906][ T253] ret_from_fork+0x31/0x70 [ 9476.900906][ T253] ret_from_fork_asm+0x1a/0x30 [ 9476.900906][ T253] [ 9476.903058][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9476.903058][ T253] netdev_get_by_index+0x5e/0x80 [ 9476.903058][ T253] fib6_nh_init+0x3d8/0x1580 [ 9476.903058][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9476.903058][ T253] ip6_route_add+0x1c/0x140 [ 9476.903058][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9476.903058][ T253] inet6_addr_add+0x4f8/0xa40 [ 9476.903058][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9476.903058][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9476.903058][ T253] netlink_rcv_skb+0x130/0x360 [ 9476.903058][ T253] netlink_unicast+0x449/0x710 [ 9476.903058][ T253] netlink_sendmsg+0x723/0xbe0 [ 9476.903058][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9476.903058][ T253] ___sys_sendmsg+0xee/0x170 [ 9476.903058][ T253] __sys_sendmsg+0xcd/0x170 [ 9476.903058][ T253] do_syscall_64+0xc6/0x1e0 [ 9476.903058][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9476.903058][ T253] [ 9476.905308][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9476.905308][ T253] netdev_get_by_index+0x5e/0x80 [ 9476.905308][ T253] fib6_nh_init+0x3d8/0x1580 [ 9476.905308][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9476.905308][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9476.905308][ T253] ipv6_add_addr+0x411/0x2000 [ 9476.905308][ T253] inet6_addr_add+0x30e/0xa40 [ 9476.905308][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9476.905308][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9476.905308][ T253] netlink_rcv_skb+0x130/0x360 [ 9476.905308][ T253] netlink_unicast+0x449/0x710 [ 9476.905308][ T253] netlink_sendmsg+0x723/0xbe0 [ 9476.905308][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9476.905308][ T253] ___sys_sendmsg+0xee/0x170 [ 9476.905308][ T253] __sys_sendmsg+0xcd/0x170 [ 9476.905308][ T253] do_syscall_64+0xc6/0x1e0 [ 9476.905308][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9476.905308][ T253] [ 9476.907553][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9476.907553][ T253] netdev_get_by_index+0x5e/0x80 [ 9476.907553][ T253] fib6_nh_init+0x3d8/0x1580 [ 9476.907553][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9476.907553][ T253] ip6_route_add+0x1c/0x140 [ 9476.907553][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9476.907553][ T253] addrconf_add_dev+0xe2/0x170 [ 9476.907553][ T253] inet6_addr_add+0x12f/0xa40 [ 9476.907553][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9476.907553][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9476.907553][ T253] netlink_rcv_skb+0x130/0x360 [ 9476.907553][ T253] netlink_unicast+0x449/0x710 [ 9476.907553][ T253] netlink_sendmsg+0x723/0xbe0 [ 9476.907553][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9476.907553][ T253] ___sys_sendmsg+0xee/0x170 [ 9476.907553][ T253] __sys_sendmsg+0xcd/0x170 [ 9476.907553][ T253] do_syscall_64+0xc6/0x1e0 [ 9476.907553][ T253] [ 9476.909762][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9476.909762][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9476.909762][ T253] ipv6_find_idev+0x102/0x170 [ 9476.909762][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9476.909762][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9476.909762][ T253] netlink_rcv_skb+0x130/0x360 [ 9476.909762][ T253] netlink_unicast+0x449/0x710 [ 9476.909762][ T253] netlink_sendmsg+0x723/0xbe0 [ 9476.909762][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9476.909762][ T253] ___sys_sendmsg+0xee/0x170 [ 9476.909762][ T253] __sys_sendmsg+0xcd/0x170 [ 9476.909762][ T253] do_syscall_64+0xc6/0x1e0 [ 9476.909762][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9476.909762][ T253] [ 9476.911486][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9476.911486][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9476.911486][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9476.911486][ T253] ipv6_find_idev+0x102/0x170 [ 9476.911486][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9476.911486][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9476.911486][ T253] netlink_rcv_skb+0x130/0x360 [ 9476.911486][ T253] netlink_unicast+0x449/0x710 [ 9476.911486][ T253] netlink_sendmsg+0x723/0xbe0 [ 9476.911486][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9476.911486][ T253] ___sys_sendmsg+0xee/0x170 [ 9476.911486][ T253] __sys_sendmsg+0xcd/0x170 [ 9476.911486][ T253] do_syscall_64+0xc6/0x1e0 [ 9476.911486][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9476.911486][ T253] [ 9486.994295][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9486.994709][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9486.994709][ T253] dst_init+0x84/0x4a0 [ 9486.994709][ T253] dst_alloc+0x97/0x150 [ 9486.994709][ T253] ip6_dst_alloc+0x23/0x90 [ 9486.994709][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9486.994709][ T253] ip6_pol_route+0x56f/0x840 [ 9486.994709][ T253] fib6_rule_lookup+0x334/0x630 [ 9486.994709][ T253] ip6_route_output_flags+0x259/0x480 [ 9486.994709][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9486.994709][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9486.994709][ T253] netlink_rcv_skb+0x130/0x360 [ 9486.994709][ T253] netlink_unicast+0x449/0x710 [ 9486.994709][ T253] netlink_sendmsg+0x723/0xbe0 [ 9486.994709][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9486.994709][ T253] ___sys_sendmsg+0xee/0x170 [ 9486.994709][ T253] __sys_sendmsg+0xcd/0x170 [ 9486.994709][ T253] do_syscall_64+0xc6/0x1e0 [ 9486.994709][ T253] [ 9486.996924][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9486.996924][ T253] netdev_get_by_index+0x5e/0x80 [ 9486.996924][ T253] fib6_nh_init+0x3d8/0x1580 [ 9486.996924][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9486.996924][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9486.996924][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9486.996924][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9486.996924][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9486.996924][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9486.996924][ T253] addrconf_dad_begin+0x310/0x670 [ 9486.996924][ T253] addrconf_dad_work+0x10b/0xab0 [ 9486.996924][ T253] process_one_work+0x84d/0x18a0 [ 9486.996924][ T253] worker_thread+0x587/0xd30 [ 9486.996924][ T253] kthread+0x28a/0x350 [ 9486.996924][ T253] ret_from_fork+0x31/0x70 [ 9486.996924][ T253] ret_from_fork_asm+0x1a/0x30 [ 9486.996924][ T253] [ 9486.999073][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9486.999073][ T253] netdev_get_by_index+0x5e/0x80 [ 9486.999073][ T253] fib6_nh_init+0x3d8/0x1580 [ 9486.999073][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9486.999073][ T253] ip6_route_add+0x1c/0x140 [ 9486.999073][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9486.999073][ T253] inet6_addr_add+0x4f8/0xa40 [ 9486.999073][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9486.999073][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9486.999073][ T253] netlink_rcv_skb+0x130/0x360 [ 9486.999073][ T253] netlink_unicast+0x449/0x710 [ 9486.999073][ T253] netlink_sendmsg+0x723/0xbe0 [ 9486.999073][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9486.999073][ T253] ___sys_sendmsg+0xee/0x170 [ 9486.999073][ T253] __sys_sendmsg+0xcd/0x170 [ 9486.999073][ T253] do_syscall_64+0xc6/0x1e0 [ 9486.999073][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9486.999073][ T253] [ 9487.001316][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9487.001316][ T253] netdev_get_by_index+0x5e/0x80 [ 9487.001316][ T253] fib6_nh_init+0x3d8/0x1580 [ 9487.001316][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9487.001316][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9487.001316][ T253] ipv6_add_addr+0x411/0x2000 [ 9487.001316][ T253] inet6_addr_add+0x30e/0xa40 [ 9487.001316][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9487.001316][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9487.001316][ T253] netlink_rcv_skb+0x130/0x360 [ 9487.001316][ T253] netlink_unicast+0x449/0x710 [ 9487.001316][ T253] netlink_sendmsg+0x723/0xbe0 [ 9487.001316][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9487.001316][ T253] ___sys_sendmsg+0xee/0x170 [ 9487.001316][ T253] __sys_sendmsg+0xcd/0x170 [ 9487.001316][ T253] do_syscall_64+0xc6/0x1e0 [ 9487.001316][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9487.001316][ T253] [ 9487.003555][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9487.003555][ T253] netdev_get_by_index+0x5e/0x80 [ 9487.003555][ T253] fib6_nh_init+0x3d8/0x1580 [ 9487.003555][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9487.003555][ T253] ip6_route_add+0x1c/0x140 [ 9487.003555][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9487.003555][ T253] addrconf_add_dev+0xe2/0x170 [ 9487.003555][ T253] inet6_addr_add+0x12f/0xa40 [ 9487.003555][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9487.003555][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9487.003555][ T253] netlink_rcv_skb+0x130/0x360 [ 9487.003555][ T253] netlink_unicast+0x449/0x710 [ 9487.003555][ T253] netlink_sendmsg+0x723/0xbe0 [ 9487.003555][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9487.003555][ T253] ___sys_sendmsg+0xee/0x170 [ 9487.003555][ T253] __sys_sendmsg+0xcd/0x170 [ 9487.003555][ T253] do_syscall_64+0xc6/0x1e0 [ 9487.003555][ T253] [ 9487.005767][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9487.005767][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9487.005767][ T253] ipv6_find_idev+0x102/0x170 [ 9487.005767][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9487.005767][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9487.005767][ T253] netlink_rcv_skb+0x130/0x360 [ 9487.005767][ T253] netlink_unicast+0x449/0x710 [ 9487.005767][ T253] netlink_sendmsg+0x723/0xbe0 [ 9487.005767][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9487.005767][ T253] ___sys_sendmsg+0xee/0x170 [ 9487.005767][ T253] __sys_sendmsg+0xcd/0x170 [ 9487.005767][ T253] do_syscall_64+0xc6/0x1e0 [ 9487.005767][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9487.005767][ T253] [ 9487.007510][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9487.007510][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9487.007510][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9487.007510][ T253] ipv6_find_idev+0x102/0x170 [ 9487.007510][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9487.007510][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9487.007510][ T253] netlink_rcv_skb+0x130/0x360 [ 9487.007510][ T253] netlink_unicast+0x449/0x710 [ 9487.007510][ T253] netlink_sendmsg+0x723/0xbe0 [ 9487.007510][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9487.007510][ T253] ___sys_sendmsg+0xee/0x170 [ 9487.007510][ T253] __sys_sendmsg+0xcd/0x170 [ 9487.007510][ T253] do_syscall_64+0xc6/0x1e0 [ 9487.007510][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9487.007510][ T253] [ 9497.202231][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9497.202640][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9497.202640][ T253] dst_init+0x84/0x4a0 [ 9497.202640][ T253] dst_alloc+0x97/0x150 [ 9497.202640][ T253] ip6_dst_alloc+0x23/0x90 [ 9497.202640][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9497.202640][ T253] ip6_pol_route+0x56f/0x840 [ 9497.202640][ T253] fib6_rule_lookup+0x334/0x630 [ 9497.202640][ T253] ip6_route_output_flags+0x259/0x480 [ 9497.202640][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9497.202640][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9497.202640][ T253] netlink_rcv_skb+0x130/0x360 [ 9497.202640][ T253] netlink_unicast+0x449/0x710 [ 9497.202640][ T253] netlink_sendmsg+0x723/0xbe0 [ 9497.202640][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9497.202640][ T253] ___sys_sendmsg+0xee/0x170 [ 9497.202640][ T253] __sys_sendmsg+0xcd/0x170 [ 9497.202640][ T253] do_syscall_64+0xc6/0x1e0 [ 9497.202640][ T253] [ 9497.204837][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9497.204837][ T253] netdev_get_by_index+0x5e/0x80 [ 9497.204837][ T253] fib6_nh_init+0x3d8/0x1580 [ 9497.204837][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9497.204837][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9497.204837][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9497.204837][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9497.204837][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9497.204837][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9497.204837][ T253] addrconf_dad_begin+0x310/0x670 [ 9497.204837][ T253] addrconf_dad_work+0x10b/0xab0 [ 9497.204837][ T253] process_one_work+0x84d/0x18a0 [ 9497.204837][ T253] worker_thread+0x587/0xd30 [ 9497.204837][ T253] kthread+0x28a/0x350 [ 9497.204837][ T253] ret_from_fork+0x31/0x70 [ 9497.204837][ T253] ret_from_fork_asm+0x1a/0x30 [ 9497.204837][ T253] [ 9497.206999][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9497.206999][ T253] netdev_get_by_index+0x5e/0x80 [ 9497.206999][ T253] fib6_nh_init+0x3d8/0x1580 [ 9497.206999][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9497.206999][ T253] ip6_route_add+0x1c/0x140 [ 9497.206999][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9497.206999][ T253] inet6_addr_add+0x4f8/0xa40 [ 9497.206999][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9497.206999][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9497.206999][ T253] netlink_rcv_skb+0x130/0x360 [ 9497.206999][ T253] netlink_unicast+0x449/0x710 [ 9497.206999][ T253] netlink_sendmsg+0x723/0xbe0 [ 9497.206999][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9497.206999][ T253] ___sys_sendmsg+0xee/0x170 [ 9497.206999][ T253] __sys_sendmsg+0xcd/0x170 [ 9497.206999][ T253] do_syscall_64+0xc6/0x1e0 [ 9497.206999][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9497.206999][ T253] [ 9497.209247][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9497.209247][ T253] netdev_get_by_index+0x5e/0x80 [ 9497.209247][ T253] fib6_nh_init+0x3d8/0x1580 [ 9497.209247][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9497.209247][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9497.209247][ T253] ipv6_add_addr+0x411/0x2000 [ 9497.209247][ T253] inet6_addr_add+0x30e/0xa40 [ 9497.209247][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9497.209247][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9497.209247][ T253] netlink_rcv_skb+0x130/0x360 [ 9497.209247][ T253] netlink_unicast+0x449/0x710 [ 9497.209247][ T253] netlink_sendmsg+0x723/0xbe0 [ 9497.209247][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9497.209247][ T253] ___sys_sendmsg+0xee/0x170 [ 9497.209247][ T253] __sys_sendmsg+0xcd/0x170 [ 9497.209247][ T253] do_syscall_64+0xc6/0x1e0 [ 9497.209247][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9497.209247][ T253] [ 9497.211502][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9497.211502][ T253] netdev_get_by_index+0x5e/0x80 [ 9497.211502][ T253] fib6_nh_init+0x3d8/0x1580 [ 9497.211502][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9497.211502][ T253] ip6_route_add+0x1c/0x140 [ 9497.211502][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9497.211502][ T253] addrconf_add_dev+0xe2/0x170 [ 9497.211502][ T253] inet6_addr_add+0x12f/0xa40 [ 9497.211502][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9497.211502][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9497.211502][ T253] netlink_rcv_skb+0x130/0x360 [ 9497.211502][ T253] netlink_unicast+0x449/0x710 [ 9497.211502][ T253] netlink_sendmsg+0x723/0xbe0 [ 9497.211502][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9497.211502][ T253] ___sys_sendmsg+0xee/0x170 [ 9497.211502][ T253] __sys_sendmsg+0xcd/0x170 [ 9497.211502][ T253] do_syscall_64+0xc6/0x1e0 [ 9497.211502][ T253] [ 9497.213707][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9497.213707][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9497.213707][ T253] ipv6_find_idev+0x102/0x170 [ 9497.213707][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9497.213707][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9497.213707][ T253] netlink_rcv_skb+0x130/0x360 [ 9497.213707][ T253] netlink_unicast+0x449/0x710 [ 9497.213707][ T253] netlink_sendmsg+0x723/0xbe0 [ 9497.213707][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9497.213707][ T253] ___sys_sendmsg+0xee/0x170 [ 9497.213707][ T253] __sys_sendmsg+0xcd/0x170 [ 9497.213707][ T253] do_syscall_64+0xc6/0x1e0 [ 9497.213707][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9497.213707][ T253] [ 9497.215433][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9497.215433][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9497.215433][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9497.215433][ T253] ipv6_find_idev+0x102/0x170 [ 9497.215433][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9497.215433][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9497.215433][ T253] netlink_rcv_skb+0x130/0x360 [ 9497.215433][ T253] netlink_unicast+0x449/0x710 [ 9497.215433][ T253] netlink_sendmsg+0x723/0xbe0 [ 9497.215433][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9497.215433][ T253] ___sys_sendmsg+0xee/0x170 [ 9497.215433][ T253] __sys_sendmsg+0xcd/0x170 [ 9497.215433][ T253] do_syscall_64+0xc6/0x1e0 [ 9497.215433][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9497.215433][ T253] [ 9507.466236][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9507.466652][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9507.466652][ T253] dst_init+0x84/0x4a0 [ 9507.466652][ T253] dst_alloc+0x97/0x150 [ 9507.466652][ T253] ip6_dst_alloc+0x23/0x90 [ 9507.466652][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9507.466652][ T253] ip6_pol_route+0x56f/0x840 [ 9507.466652][ T253] fib6_rule_lookup+0x334/0x630 [ 9507.466652][ T253] ip6_route_output_flags+0x259/0x480 [ 9507.466652][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9507.466652][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9507.466652][ T253] netlink_rcv_skb+0x130/0x360 [ 9507.466652][ T253] netlink_unicast+0x449/0x710 [ 9507.466652][ T253] netlink_sendmsg+0x723/0xbe0 [ 9507.466652][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9507.466652][ T253] ___sys_sendmsg+0xee/0x170 [ 9507.466652][ T253] __sys_sendmsg+0xcd/0x170 [ 9507.466652][ T253] do_syscall_64+0xc6/0x1e0 [ 9507.466652][ T253] [ 9507.468843][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9507.468843][ T253] netdev_get_by_index+0x5e/0x80 [ 9507.468843][ T253] fib6_nh_init+0x3d8/0x1580 [ 9507.468843][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9507.468843][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9507.468843][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9507.468843][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9507.468843][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9507.468843][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9507.468843][ T253] addrconf_dad_begin+0x310/0x670 [ 9507.468843][ T253] addrconf_dad_work+0x10b/0xab0 [ 9507.468843][ T253] process_one_work+0x84d/0x18a0 [ 9507.468843][ T253] worker_thread+0x587/0xd30 [ 9507.468843][ T253] kthread+0x28a/0x350 [ 9507.468843][ T253] ret_from_fork+0x31/0x70 [ 9507.468843][ T253] ret_from_fork_asm+0x1a/0x30 [ 9507.468843][ T253] [ 9507.470990][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9507.470990][ T253] netdev_get_by_index+0x5e/0x80 [ 9507.470990][ T253] fib6_nh_init+0x3d8/0x1580 [ 9507.470990][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9507.470990][ T253] ip6_route_add+0x1c/0x140 [ 9507.470990][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9507.470990][ T253] inet6_addr_add+0x4f8/0xa40 [ 9507.470990][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9507.470990][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9507.470990][ T253] netlink_rcv_skb+0x130/0x360 [ 9507.470990][ T253] netlink_unicast+0x449/0x710 [ 9507.470990][ T253] netlink_sendmsg+0x723/0xbe0 [ 9507.470990][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9507.470990][ T253] ___sys_sendmsg+0xee/0x170 [ 9507.470990][ T253] __sys_sendmsg+0xcd/0x170 [ 9507.470990][ T253] do_syscall_64+0xc6/0x1e0 [ 9507.470990][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9507.470990][ T253] [ 9507.473231][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9507.473231][ T253] netdev_get_by_index+0x5e/0x80 [ 9507.473231][ T253] fib6_nh_init+0x3d8/0x1580 [ 9507.473231][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9507.473231][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9507.473231][ T253] ipv6_add_addr+0x411/0x2000 [ 9507.473231][ T253] inet6_addr_add+0x30e/0xa40 [ 9507.473231][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9507.473231][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9507.473231][ T253] netlink_rcv_skb+0x130/0x360 [ 9507.473231][ T253] netlink_unicast+0x449/0x710 [ 9507.473231][ T253] netlink_sendmsg+0x723/0xbe0 [ 9507.473231][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9507.473231][ T253] ___sys_sendmsg+0xee/0x170 [ 9507.473231][ T253] __sys_sendmsg+0xcd/0x170 [ 9507.473231][ T253] do_syscall_64+0xc6/0x1e0 [ 9507.473231][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9507.473231][ T253] [ 9507.475479][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9507.475479][ T253] netdev_get_by_index+0x5e/0x80 [ 9507.475479][ T253] fib6_nh_init+0x3d8/0x1580 [ 9507.475479][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9507.475479][ T253] ip6_route_add+0x1c/0x140 [ 9507.475479][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9507.475479][ T253] addrconf_add_dev+0xe2/0x170 [ 9507.475479][ T253] inet6_addr_add+0x12f/0xa40 [ 9507.475479][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9507.475479][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9507.475479][ T253] netlink_rcv_skb+0x130/0x360 [ 9507.475479][ T253] netlink_unicast+0x449/0x710 [ 9507.475479][ T253] netlink_sendmsg+0x723/0xbe0 [ 9507.475479][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9507.475479][ T253] ___sys_sendmsg+0xee/0x170 [ 9507.475479][ T253] __sys_sendmsg+0xcd/0x170 [ 9507.475479][ T253] do_syscall_64+0xc6/0x1e0 [ 9507.475479][ T253] [ 9507.477689][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9507.477689][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9507.477689][ T253] ipv6_find_idev+0x102/0x170 [ 9507.477689][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9507.477689][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9507.477689][ T253] netlink_rcv_skb+0x130/0x360 [ 9507.477689][ T253] netlink_unicast+0x449/0x710 [ 9507.477689][ T253] netlink_sendmsg+0x723/0xbe0 [ 9507.477689][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9507.477689][ T253] ___sys_sendmsg+0xee/0x170 [ 9507.477689][ T253] __sys_sendmsg+0xcd/0x170 [ 9507.477689][ T253] do_syscall_64+0xc6/0x1e0 [ 9507.477689][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9507.477689][ T253] [ 9507.479522][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9507.479522][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9507.479522][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9507.479522][ T253] ipv6_find_idev+0x102/0x170 [ 9507.479522][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9507.479522][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9507.479522][ T253] netlink_rcv_skb+0x130/0x360 [ 9507.479522][ T253] netlink_unicast+0x449/0x710 [ 9507.479522][ T253] netlink_sendmsg+0x723/0xbe0 [ 9507.479522][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9507.479522][ T253] ___sys_sendmsg+0xee/0x170 [ 9507.479522][ T253] __sys_sendmsg+0xcd/0x170 [ 9507.479522][ T253] do_syscall_64+0xc6/0x1e0 [ 9507.479522][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9507.479522][ T253] [ 9517.666239][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9517.667174][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9517.667174][ T253] dst_init+0x84/0x4a0 [ 9517.667174][ T253] dst_alloc+0x97/0x150 [ 9517.667174][ T253] ip6_dst_alloc+0x23/0x90 [ 9517.667174][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9517.667174][ T253] ip6_pol_route+0x56f/0x840 [ 9517.667174][ T253] fib6_rule_lookup+0x334/0x630 [ 9517.667174][ T253] ip6_route_output_flags+0x259/0x480 [ 9517.667174][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9517.667174][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9517.667174][ T253] netlink_rcv_skb+0x130/0x360 [ 9517.667174][ T253] netlink_unicast+0x449/0x710 [ 9517.667174][ T253] netlink_sendmsg+0x723/0xbe0 [ 9517.667174][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9517.667174][ T253] ___sys_sendmsg+0xee/0x170 [ 9517.667174][ T253] __sys_sendmsg+0xcd/0x170 [ 9517.667174][ T253] do_syscall_64+0xc6/0x1e0 [ 9517.667174][ T253] [ 9517.669371][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9517.669371][ T253] netdev_get_by_index+0x5e/0x80 [ 9517.669371][ T253] fib6_nh_init+0x3d8/0x1580 [ 9517.669371][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9517.669371][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9517.669371][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9517.669371][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9517.669371][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9517.669371][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9517.669371][ T253] addrconf_dad_begin+0x310/0x670 [ 9517.669371][ T253] addrconf_dad_work+0x10b/0xab0 [ 9517.669371][ T253] process_one_work+0x84d/0x18a0 [ 9517.669371][ T253] worker_thread+0x587/0xd30 [ 9517.669371][ T253] kthread+0x28a/0x350 [ 9517.669371][ T253] ret_from_fork+0x31/0x70 [ 9517.669371][ T253] ret_from_fork_asm+0x1a/0x30 [ 9517.669371][ T253] [ 9517.671509][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9517.671509][ T253] netdev_get_by_index+0x5e/0x80 [ 9517.671509][ T253] fib6_nh_init+0x3d8/0x1580 [ 9517.671509][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9517.671509][ T253] ip6_route_add+0x1c/0x140 [ 9517.671509][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9517.671509][ T253] inet6_addr_add+0x4f8/0xa40 [ 9517.671509][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9517.671509][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9517.671509][ T253] netlink_rcv_skb+0x130/0x360 [ 9517.671509][ T253] netlink_unicast+0x449/0x710 [ 9517.671509][ T253] netlink_sendmsg+0x723/0xbe0 [ 9517.671509][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9517.671509][ T253] ___sys_sendmsg+0xee/0x170 [ 9517.671509][ T253] __sys_sendmsg+0xcd/0x170 [ 9517.671509][ T253] do_syscall_64+0xc6/0x1e0 [ 9517.671509][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9517.671509][ T253] [ 9517.673747][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9517.673747][ T253] netdev_get_by_index+0x5e/0x80 [ 9517.673747][ T253] fib6_nh_init+0x3d8/0x1580 [ 9517.673747][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9517.673747][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9517.673747][ T253] ipv6_add_addr+0x411/0x2000 [ 9517.673747][ T253] inet6_addr_add+0x30e/0xa40 [ 9517.673747][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9517.673747][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9517.673747][ T253] netlink_rcv_skb+0x130/0x360 [ 9517.673747][ T253] netlink_unicast+0x449/0x710 [ 9517.673747][ T253] netlink_sendmsg+0x723/0xbe0 [ 9517.673747][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9517.673747][ T253] ___sys_sendmsg+0xee/0x170 [ 9517.673747][ T253] __sys_sendmsg+0xcd/0x170 [ 9517.673747][ T253] do_syscall_64+0xc6/0x1e0 [ 9517.673747][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9517.673747][ T253] [ 9517.675993][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9517.675993][ T253] netdev_get_by_index+0x5e/0x80 [ 9517.675993][ T253] fib6_nh_init+0x3d8/0x1580 [ 9517.675993][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9517.675993][ T253] ip6_route_add+0x1c/0x140 [ 9517.675993][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9517.675993][ T253] addrconf_add_dev+0xe2/0x170 [ 9517.675993][ T253] inet6_addr_add+0x12f/0xa40 [ 9517.675993][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9517.675993][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9517.675993][ T253] netlink_rcv_skb+0x130/0x360 [ 9517.675993][ T253] netlink_unicast+0x449/0x710 [ 9517.675993][ T253] netlink_sendmsg+0x723/0xbe0 [ 9517.675993][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9517.675993][ T253] ___sys_sendmsg+0xee/0x170 [ 9517.675993][ T253] __sys_sendmsg+0xcd/0x170 [ 9517.675993][ T253] do_syscall_64+0xc6/0x1e0 [ 9517.675993][ T253] [ 9517.678193][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9517.678193][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9517.678193][ T253] ipv6_find_idev+0x102/0x170 [ 9517.678193][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9517.678193][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9517.678193][ T253] netlink_rcv_skb+0x130/0x360 [ 9517.678193][ T253] netlink_unicast+0x449/0x710 [ 9517.678193][ T253] netlink_sendmsg+0x723/0xbe0 [ 9517.678193][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9517.678193][ T253] ___sys_sendmsg+0xee/0x170 [ 9517.678193][ T253] __sys_sendmsg+0xcd/0x170 [ 9517.678193][ T253] do_syscall_64+0xc6/0x1e0 [ 9517.678193][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9517.678193][ T253] [ 9517.679907][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9517.679907][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9517.679907][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9517.679907][ T253] ipv6_find_idev+0x102/0x170 [ 9517.679907][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9517.679907][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9517.679907][ T253] netlink_rcv_skb+0x130/0x360 [ 9517.679907][ T253] netlink_unicast+0x449/0x710 [ 9517.679907][ T253] netlink_sendmsg+0x723/0xbe0 [ 9517.679907][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9517.679907][ T253] ___sys_sendmsg+0xee/0x170 [ 9517.679907][ T253] __sys_sendmsg+0xcd/0x170 [ 9517.679907][ T253] do_syscall_64+0xc6/0x1e0 [ 9517.679907][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9517.679907][ T253] [ 9527.874237][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9527.874726][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9527.874726][ T253] dst_init+0x84/0x4a0 [ 9527.874726][ T253] dst_alloc+0x97/0x150 [ 9527.874726][ T253] ip6_dst_alloc+0x23/0x90 [ 9527.874726][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9527.874726][ T253] ip6_pol_route+0x56f/0x840 [ 9527.874726][ T253] fib6_rule_lookup+0x334/0x630 [ 9527.874726][ T253] ip6_route_output_flags+0x259/0x480 [ 9527.874726][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9527.874726][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9527.874726][ T253] netlink_rcv_skb+0x130/0x360 [ 9527.874726][ T253] netlink_unicast+0x449/0x710 [ 9527.874726][ T253] netlink_sendmsg+0x723/0xbe0 [ 9527.874726][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9527.874726][ T253] ___sys_sendmsg+0xee/0x170 [ 9527.874726][ T253] __sys_sendmsg+0xcd/0x170 [ 9527.874726][ T253] do_syscall_64+0xc6/0x1e0 [ 9527.874726][ T253] [ 9527.876924][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9527.876924][ T253] netdev_get_by_index+0x5e/0x80 [ 9527.876924][ T253] fib6_nh_init+0x3d8/0x1580 [ 9527.876924][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9527.876924][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9527.876924][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9527.876924][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9527.876924][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9527.876924][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9527.876924][ T253] addrconf_dad_begin+0x310/0x670 [ 9527.876924][ T253] addrconf_dad_work+0x10b/0xab0 [ 9527.876924][ T253] process_one_work+0x84d/0x18a0 [ 9527.876924][ T253] worker_thread+0x587/0xd30 [ 9527.876924][ T253] kthread+0x28a/0x350 [ 9527.876924][ T253] ret_from_fork+0x31/0x70 [ 9527.876924][ T253] ret_from_fork_asm+0x1a/0x30 [ 9527.876924][ T253] [ 9527.879059][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9527.879059][ T253] netdev_get_by_index+0x5e/0x80 [ 9527.879059][ T253] fib6_nh_init+0x3d8/0x1580 [ 9527.879059][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9527.879059][ T253] ip6_route_add+0x1c/0x140 [ 9527.879059][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9527.879059][ T253] inet6_addr_add+0x4f8/0xa40 [ 9527.879059][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9527.879059][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9527.879059][ T253] netlink_rcv_skb+0x130/0x360 [ 9527.879059][ T253] netlink_unicast+0x449/0x710 [ 9527.879059][ T253] netlink_sendmsg+0x723/0xbe0 [ 9527.879059][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9527.879059][ T253] ___sys_sendmsg+0xee/0x170 [ 9527.879059][ T253] __sys_sendmsg+0xcd/0x170 [ 9527.879059][ T253] do_syscall_64+0xc6/0x1e0 [ 9527.879059][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9527.879059][ T253] [ 9527.881301][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9527.881301][ T253] netdev_get_by_index+0x5e/0x80 [ 9527.881301][ T253] fib6_nh_init+0x3d8/0x1580 [ 9527.881301][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9527.881301][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9527.881301][ T253] ipv6_add_addr+0x411/0x2000 [ 9527.881301][ T253] inet6_addr_add+0x30e/0xa40 [ 9527.881301][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9527.881301][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9527.881301][ T253] netlink_rcv_skb+0x130/0x360 [ 9527.881301][ T253] netlink_unicast+0x449/0x710 [ 9527.881301][ T253] netlink_sendmsg+0x723/0xbe0 [ 9527.881301][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9527.881301][ T253] ___sys_sendmsg+0xee/0x170 [ 9527.881301][ T253] __sys_sendmsg+0xcd/0x170 [ 9527.881301][ T253] do_syscall_64+0xc6/0x1e0 [ 9527.881301][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9527.881301][ T253] [ 9527.883539][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9527.883539][ T253] netdev_get_by_index+0x5e/0x80 [ 9527.883539][ T253] fib6_nh_init+0x3d8/0x1580 [ 9527.883539][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9527.883539][ T253] ip6_route_add+0x1c/0x140 [ 9527.883539][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9527.883539][ T253] addrconf_add_dev+0xe2/0x170 [ 9527.883539][ T253] inet6_addr_add+0x12f/0xa40 [ 9527.883539][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9527.883539][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9527.883539][ T253] netlink_rcv_skb+0x130/0x360 [ 9527.883539][ T253] netlink_unicast+0x449/0x710 [ 9527.883539][ T253] netlink_sendmsg+0x723/0xbe0 [ 9527.883539][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9527.883539][ T253] ___sys_sendmsg+0xee/0x170 [ 9527.883539][ T253] __sys_sendmsg+0xcd/0x170 [ 9527.883539][ T253] do_syscall_64+0xc6/0x1e0 [ 9527.883539][ T253] [ 9527.885732][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9527.885732][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9527.885732][ T253] ipv6_find_idev+0x102/0x170 [ 9527.885732][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9527.885732][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9527.885732][ T253] netlink_rcv_skb+0x130/0x360 [ 9527.885732][ T253] netlink_unicast+0x449/0x710 [ 9527.885732][ T253] netlink_sendmsg+0x723/0xbe0 [ 9527.885732][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9527.885732][ T253] ___sys_sendmsg+0xee/0x170 [ 9527.885732][ T253] __sys_sendmsg+0xcd/0x170 [ 9527.885732][ T253] do_syscall_64+0xc6/0x1e0 [ 9527.885732][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9527.885732][ T253] [ 9527.887462][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9527.887462][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9527.887462][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9527.887462][ T253] ipv6_find_idev+0x102/0x170 [ 9527.887462][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9527.887462][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9527.887462][ T253] netlink_rcv_skb+0x130/0x360 [ 9527.887462][ T253] netlink_unicast+0x449/0x710 [ 9527.887462][ T253] netlink_sendmsg+0x723/0xbe0 [ 9527.887462][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9527.887462][ T253] ___sys_sendmsg+0xee/0x170 [ 9527.887462][ T253] __sys_sendmsg+0xcd/0x170 [ 9527.887462][ T253] do_syscall_64+0xc6/0x1e0 [ 9527.887462][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9527.887462][ T253] [ 9538.130236][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9538.130719][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9538.130719][ T253] dst_init+0x84/0x4a0 [ 9538.130719][ T253] dst_alloc+0x97/0x150 [ 9538.130719][ T253] ip6_dst_alloc+0x23/0x90 [ 9538.130719][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9538.130719][ T253] ip6_pol_route+0x56f/0x840 [ 9538.130719][ T253] fib6_rule_lookup+0x334/0x630 [ 9538.130719][ T253] ip6_route_output_flags+0x259/0x480 [ 9538.130719][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9538.130719][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9538.130719][ T253] netlink_rcv_skb+0x130/0x360 [ 9538.130719][ T253] netlink_unicast+0x449/0x710 [ 9538.130719][ T253] netlink_sendmsg+0x723/0xbe0 [ 9538.130719][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9538.130719][ T253] ___sys_sendmsg+0xee/0x170 [ 9538.130719][ T253] __sys_sendmsg+0xcd/0x170 [ 9538.130719][ T253] do_syscall_64+0xc6/0x1e0 [ 9538.130719][ T253] [ 9538.132920][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9538.132920][ T253] netdev_get_by_index+0x5e/0x80 [ 9538.132920][ T253] fib6_nh_init+0x3d8/0x1580 [ 9538.132920][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9538.132920][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9538.132920][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9538.132920][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9538.132920][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9538.132920][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9538.132920][ T253] addrconf_dad_begin+0x310/0x670 [ 9538.132920][ T253] addrconf_dad_work+0x10b/0xab0 [ 9538.132920][ T253] process_one_work+0x84d/0x18a0 [ 9538.132920][ T253] worker_thread+0x587/0xd30 [ 9538.132920][ T253] kthread+0x28a/0x350 [ 9538.132920][ T253] ret_from_fork+0x31/0x70 [ 9538.132920][ T253] ret_from_fork_asm+0x1a/0x30 [ 9538.132920][ T253] [ 9538.135074][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9538.135074][ T253] netdev_get_by_index+0x5e/0x80 [ 9538.135074][ T253] fib6_nh_init+0x3d8/0x1580 [ 9538.135074][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9538.135074][ T253] ip6_route_add+0x1c/0x140 [ 9538.135074][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9538.135074][ T253] inet6_addr_add+0x4f8/0xa40 [ 9538.135074][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9538.135074][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9538.135074][ T253] netlink_rcv_skb+0x130/0x360 [ 9538.135074][ T253] netlink_unicast+0x449/0x710 [ 9538.135074][ T253] netlink_sendmsg+0x723/0xbe0 [ 9538.135074][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9538.135074][ T253] ___sys_sendmsg+0xee/0x170 [ 9538.135074][ T253] __sys_sendmsg+0xcd/0x170 [ 9538.135074][ T253] do_syscall_64+0xc6/0x1e0 [ 9538.135074][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9538.135074][ T253] [ 9538.137348][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9538.137348][ T253] netdev_get_by_index+0x5e/0x80 [ 9538.137348][ T253] fib6_nh_init+0x3d8/0x1580 [ 9538.137348][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9538.137348][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9538.137348][ T253] ipv6_add_addr+0x411/0x2000 [ 9538.137348][ T253] inet6_addr_add+0x30e/0xa40 [ 9538.137348][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9538.137348][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9538.137348][ T253] netlink_rcv_skb+0x130/0x360 [ 9538.137348][ T253] netlink_unicast+0x449/0x710 [ 9538.137348][ T253] netlink_sendmsg+0x723/0xbe0 [ 9538.137348][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9538.137348][ T253] ___sys_sendmsg+0xee/0x170 [ 9538.137348][ T253] __sys_sendmsg+0xcd/0x170 [ 9538.137348][ T253] do_syscall_64+0xc6/0x1e0 [ 9538.137348][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9538.137348][ T253] [ 9538.139601][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9538.139601][ T253] netdev_get_by_index+0x5e/0x80 [ 9538.139601][ T253] fib6_nh_init+0x3d8/0x1580 [ 9538.139601][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9538.139601][ T253] ip6_route_add+0x1c/0x140 [ 9538.139601][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9538.139601][ T253] addrconf_add_dev+0xe2/0x170 [ 9538.139601][ T253] inet6_addr_add+0x12f/0xa40 [ 9538.139601][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9538.139601][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9538.139601][ T253] netlink_rcv_skb+0x130/0x360 [ 9538.139601][ T253] netlink_unicast+0x449/0x710 [ 9538.139601][ T253] netlink_sendmsg+0x723/0xbe0 [ 9538.139601][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9538.139601][ T253] ___sys_sendmsg+0xee/0x170 [ 9538.139601][ T253] __sys_sendmsg+0xcd/0x170 [ 9538.139601][ T253] do_syscall_64+0xc6/0x1e0 [ 9538.139601][ T253] [ 9538.141811][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9538.141811][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9538.141811][ T253] ipv6_find_idev+0x102/0x170 [ 9538.141811][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9538.141811][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9538.141811][ T253] netlink_rcv_skb+0x130/0x360 [ 9538.141811][ T253] netlink_unicast+0x449/0x710 [ 9538.141811][ T253] netlink_sendmsg+0x723/0xbe0 [ 9538.141811][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9538.141811][ T253] ___sys_sendmsg+0xee/0x170 [ 9538.141811][ T253] __sys_sendmsg+0xcd/0x170 [ 9538.141811][ T253] do_syscall_64+0xc6/0x1e0 [ 9538.141811][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9538.141811][ T253] [ 9538.143540][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9538.143540][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9538.143540][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9538.143540][ T253] ipv6_find_idev+0x102/0x170 [ 9538.143540][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9538.143540][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9538.143540][ T253] netlink_rcv_skb+0x130/0x360 [ 9538.143540][ T253] netlink_unicast+0x449/0x710 [ 9538.143540][ T253] netlink_sendmsg+0x723/0xbe0 [ 9538.143540][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9538.143540][ T253] ___sys_sendmsg+0xee/0x170 [ 9538.143540][ T253] __sys_sendmsg+0xcd/0x170 [ 9538.143540][ T253] do_syscall_64+0xc6/0x1e0 [ 9538.143540][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9538.143540][ T253] [ 9548.386329][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9548.386799][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9548.386799][ T253] dst_init+0x84/0x4a0 [ 9548.386799][ T253] dst_alloc+0x97/0x150 [ 9548.386799][ T253] ip6_dst_alloc+0x23/0x90 [ 9548.386799][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9548.386799][ T253] ip6_pol_route+0x56f/0x840 [ 9548.386799][ T253] fib6_rule_lookup+0x334/0x630 [ 9548.386799][ T253] ip6_route_output_flags+0x259/0x480 [ 9548.386799][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9548.386799][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9548.386799][ T253] netlink_rcv_skb+0x130/0x360 [ 9548.386799][ T253] netlink_unicast+0x449/0x710 [ 9548.386799][ T253] netlink_sendmsg+0x723/0xbe0 [ 9548.386799][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9548.386799][ T253] ___sys_sendmsg+0xee/0x170 [ 9548.386799][ T253] __sys_sendmsg+0xcd/0x170 [ 9548.386799][ T253] do_syscall_64+0xc6/0x1e0 [ 9548.386799][ T253] [ 9548.388993][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9548.388993][ T253] netdev_get_by_index+0x5e/0x80 [ 9548.388993][ T253] fib6_nh_init+0x3d8/0x1580 [ 9548.388993][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9548.388993][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9548.388993][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9548.388993][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9548.388993][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9548.388993][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9548.388993][ T253] addrconf_dad_begin+0x310/0x670 [ 9548.388993][ T253] addrconf_dad_work+0x10b/0xab0 [ 9548.388993][ T253] process_one_work+0x84d/0x18a0 [ 9548.388993][ T253] worker_thread+0x587/0xd30 [ 9548.388993][ T253] kthread+0x28a/0x350 [ 9548.388993][ T253] ret_from_fork+0x31/0x70 [ 9548.388993][ T253] ret_from_fork_asm+0x1a/0x30 [ 9548.388993][ T253] [ 9548.391140][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9548.391140][ T253] netdev_get_by_index+0x5e/0x80 [ 9548.391140][ T253] fib6_nh_init+0x3d8/0x1580 [ 9548.391140][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9548.391140][ T253] ip6_route_add+0x1c/0x140 [ 9548.391140][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9548.391140][ T253] inet6_addr_add+0x4f8/0xa40 [ 9548.391140][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9548.391140][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9548.391140][ T253] netlink_rcv_skb+0x130/0x360 [ 9548.391140][ T253] netlink_unicast+0x449/0x710 [ 9548.391140][ T253] netlink_sendmsg+0x723/0xbe0 [ 9548.391140][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9548.391140][ T253] ___sys_sendmsg+0xee/0x170 [ 9548.391140][ T253] __sys_sendmsg+0xcd/0x170 [ 9548.391140][ T253] do_syscall_64+0xc6/0x1e0 [ 9548.391140][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9548.391140][ T253] [ 9548.393380][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9548.393380][ T253] netdev_get_by_index+0x5e/0x80 [ 9548.393380][ T253] fib6_nh_init+0x3d8/0x1580 [ 9548.393380][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9548.393380][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9548.393380][ T253] ipv6_add_addr+0x411/0x2000 [ 9548.393380][ T253] inet6_addr_add+0x30e/0xa40 [ 9548.393380][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9548.393380][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9548.393380][ T253] netlink_rcv_skb+0x130/0x360 [ 9548.393380][ T253] netlink_unicast+0x449/0x710 [ 9548.393380][ T253] netlink_sendmsg+0x723/0xbe0 [ 9548.393380][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9548.393380][ T253] ___sys_sendmsg+0xee/0x170 [ 9548.393380][ T253] __sys_sendmsg+0xcd/0x170 [ 9548.393380][ T253] do_syscall_64+0xc6/0x1e0 [ 9548.393380][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9548.393380][ T253] [ 9548.395641][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9548.395641][ T253] netdev_get_by_index+0x5e/0x80 [ 9548.395641][ T253] fib6_nh_init+0x3d8/0x1580 [ 9548.395641][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9548.395641][ T253] ip6_route_add+0x1c/0x140 [ 9548.395641][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9548.395641][ T253] addrconf_add_dev+0xe2/0x170 [ 9548.395641][ T253] inet6_addr_add+0x12f/0xa40 [ 9548.395641][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9548.395641][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9548.395641][ T253] netlink_rcv_skb+0x130/0x360 [ 9548.395641][ T253] netlink_unicast+0x449/0x710 [ 9548.395641][ T253] netlink_sendmsg+0x723/0xbe0 [ 9548.395641][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9548.395641][ T253] ___sys_sendmsg+0xee/0x170 [ 9548.395641][ T253] __sys_sendmsg+0xcd/0x170 [ 9548.395641][ T253] do_syscall_64+0xc6/0x1e0 [ 9548.395641][ T253] [ 9548.397867][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9548.397867][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9548.397867][ T253] ipv6_find_idev+0x102/0x170 [ 9548.397867][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9548.397867][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9548.397867][ T253] netlink_rcv_skb+0x130/0x360 [ 9548.397867][ T253] netlink_unicast+0x449/0x710 [ 9548.397867][ T253] netlink_sendmsg+0x723/0xbe0 [ 9548.397867][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9548.397867][ T253] ___sys_sendmsg+0xee/0x170 [ 9548.397867][ T253] __sys_sendmsg+0xcd/0x170 [ 9548.397867][ T253] do_syscall_64+0xc6/0x1e0 [ 9548.397867][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9548.397867][ T253] [ 9548.399592][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9548.399592][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9548.399592][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9548.399592][ T253] ipv6_find_idev+0x102/0x170 [ 9548.399592][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9548.399592][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9548.399592][ T253] netlink_rcv_skb+0x130/0x360 [ 9548.399592][ T253] netlink_unicast+0x449/0x710 [ 9548.399592][ T253] netlink_sendmsg+0x723/0xbe0 [ 9548.399592][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9548.399592][ T253] ___sys_sendmsg+0xee/0x170 [ 9548.399592][ T253] __sys_sendmsg+0xcd/0x170 [ 9548.399592][ T253] do_syscall_64+0xc6/0x1e0 [ 9548.399592][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9548.399592][ T253] [ 9558.442326][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9558.442793][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9558.442793][ T253] dst_init+0x84/0x4a0 [ 9558.442793][ T253] dst_alloc+0x97/0x150 [ 9558.442793][ T253] ip6_dst_alloc+0x23/0x90 [ 9558.442793][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9558.442793][ T253] ip6_pol_route+0x56f/0x840 [ 9558.442793][ T253] fib6_rule_lookup+0x334/0x630 [ 9558.442793][ T253] ip6_route_output_flags+0x259/0x480 [ 9558.442793][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9558.442793][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9558.442793][ T253] netlink_rcv_skb+0x130/0x360 [ 9558.442793][ T253] netlink_unicast+0x449/0x710 [ 9558.442793][ T253] netlink_sendmsg+0x723/0xbe0 [ 9558.442793][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9558.442793][ T253] ___sys_sendmsg+0xee/0x170 [ 9558.442793][ T253] __sys_sendmsg+0xcd/0x170 [ 9558.442793][ T253] do_syscall_64+0xc6/0x1e0 [ 9558.442793][ T253] [ 9558.444993][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9558.444993][ T253] netdev_get_by_index+0x5e/0x80 [ 9558.444993][ T253] fib6_nh_init+0x3d8/0x1580 [ 9558.444993][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9558.444993][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9558.444993][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9558.444993][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9558.444993][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9558.444993][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9558.444993][ T253] addrconf_dad_begin+0x310/0x670 [ 9558.444993][ T253] addrconf_dad_work+0x10b/0xab0 [ 9558.444993][ T253] process_one_work+0x84d/0x18a0 [ 9558.444993][ T253] worker_thread+0x587/0xd30 [ 9558.444993][ T253] kthread+0x28a/0x350 [ 9558.444993][ T253] ret_from_fork+0x31/0x70 [ 9558.444993][ T253] ret_from_fork_asm+0x1a/0x30 [ 9558.444993][ T253] [ 9558.447149][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9558.447149][ T253] netdev_get_by_index+0x5e/0x80 [ 9558.447149][ T253] fib6_nh_init+0x3d8/0x1580 [ 9558.447149][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9558.447149][ T253] ip6_route_add+0x1c/0x140 [ 9558.447149][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9558.447149][ T253] inet6_addr_add+0x4f8/0xa40 [ 9558.447149][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9558.447149][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9558.447149][ T253] netlink_rcv_skb+0x130/0x360 [ 9558.447149][ T253] netlink_unicast+0x449/0x710 [ 9558.447149][ T253] netlink_sendmsg+0x723/0xbe0 [ 9558.447149][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9558.447149][ T253] ___sys_sendmsg+0xee/0x170 [ 9558.447149][ T253] __sys_sendmsg+0xcd/0x170 [ 9558.447149][ T253] do_syscall_64+0xc6/0x1e0 [ 9558.447149][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9558.447149][ T253] [ 9558.449389][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9558.449389][ T253] netdev_get_by_index+0x5e/0x80 [ 9558.449389][ T253] fib6_nh_init+0x3d8/0x1580 [ 9558.449389][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9558.449389][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9558.449389][ T253] ipv6_add_addr+0x411/0x2000 [ 9558.449389][ T253] inet6_addr_add+0x30e/0xa40 [ 9558.449389][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9558.449389][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9558.449389][ T253] netlink_rcv_skb+0x130/0x360 [ 9558.449389][ T253] netlink_unicast+0x449/0x710 [ 9558.449389][ T253] netlink_sendmsg+0x723/0xbe0 [ 9558.449389][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9558.449389][ T253] ___sys_sendmsg+0xee/0x170 [ 9558.449389][ T253] __sys_sendmsg+0xcd/0x170 [ 9558.449389][ T253] do_syscall_64+0xc6/0x1e0 [ 9558.449389][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9558.449389][ T253] [ 9558.451619][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9558.451619][ T253] netdev_get_by_index+0x5e/0x80 [ 9558.451619][ T253] fib6_nh_init+0x3d8/0x1580 [ 9558.451619][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9558.451619][ T253] ip6_route_add+0x1c/0x140 [ 9558.451619][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9558.451619][ T253] addrconf_add_dev+0xe2/0x170 [ 9558.451619][ T253] inet6_addr_add+0x12f/0xa40 [ 9558.451619][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9558.451619][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9558.451619][ T253] netlink_rcv_skb+0x130/0x360 [ 9558.451619][ T253] netlink_unicast+0x449/0x710 [ 9558.451619][ T253] netlink_sendmsg+0x723/0xbe0 [ 9558.451619][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9558.451619][ T253] ___sys_sendmsg+0xee/0x170 [ 9558.451619][ T253] __sys_sendmsg+0xcd/0x170 [ 9558.451619][ T253] do_syscall_64+0xc6/0x1e0 [ 9558.451619][ T253] [ 9558.453812][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9558.453812][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9558.453812][ T253] ipv6_find_idev+0x102/0x170 [ 9558.453812][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9558.453812][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9558.453812][ T253] netlink_rcv_skb+0x130/0x360 [ 9558.453812][ T253] netlink_unicast+0x449/0x710 [ 9558.453812][ T253] netlink_sendmsg+0x723/0xbe0 [ 9558.453812][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9558.453812][ T253] ___sys_sendmsg+0xee/0x170 [ 9558.453812][ T253] __sys_sendmsg+0xcd/0x170 [ 9558.453812][ T253] do_syscall_64+0xc6/0x1e0 [ 9558.453812][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9558.453812][ T253] [ 9558.455532][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9558.455532][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9558.455532][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9558.455532][ T253] ipv6_find_idev+0x102/0x170 [ 9558.455532][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9558.455532][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9558.455532][ T253] netlink_rcv_skb+0x130/0x360 [ 9558.455532][ T253] netlink_unicast+0x449/0x710 [ 9558.455532][ T253] netlink_sendmsg+0x723/0xbe0 [ 9558.455532][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9558.455532][ T253] ___sys_sendmsg+0xee/0x170 [ 9558.455532][ T253] __sys_sendmsg+0xcd/0x170 [ 9558.455532][ T253] do_syscall_64+0xc6/0x1e0 [ 9558.455532][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9558.455532][ T253] [ 9568.554327][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9568.554806][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9568.554806][ T253] dst_init+0x84/0x4a0 [ 9568.554806][ T253] dst_alloc+0x97/0x150 [ 9568.554806][ T253] ip6_dst_alloc+0x23/0x90 [ 9568.554806][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9568.554806][ T253] ip6_pol_route+0x56f/0x840 [ 9568.554806][ T253] fib6_rule_lookup+0x334/0x630 [ 9568.554806][ T253] ip6_route_output_flags+0x259/0x480 [ 9568.554806][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9568.554806][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9568.554806][ T253] netlink_rcv_skb+0x130/0x360 [ 9568.554806][ T253] netlink_unicast+0x449/0x710 [ 9568.554806][ T253] netlink_sendmsg+0x723/0xbe0 [ 9568.554806][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9568.554806][ T253] ___sys_sendmsg+0xee/0x170 [ 9568.554806][ T253] __sys_sendmsg+0xcd/0x170 [ 9568.554806][ T253] do_syscall_64+0xc6/0x1e0 [ 9568.554806][ T253] [ 9568.557003][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9568.557003][ T253] netdev_get_by_index+0x5e/0x80 [ 9568.557003][ T253] fib6_nh_init+0x3d8/0x1580 [ 9568.557003][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9568.557003][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9568.557003][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9568.557003][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9568.557003][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9568.557003][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9568.557003][ T253] addrconf_dad_begin+0x310/0x670 [ 9568.557003][ T253] addrconf_dad_work+0x10b/0xab0 [ 9568.557003][ T253] process_one_work+0x84d/0x18a0 [ 9568.557003][ T253] worker_thread+0x587/0xd30 [ 9568.557003][ T253] kthread+0x28a/0x350 [ 9568.557003][ T253] ret_from_fork+0x31/0x70 [ 9568.557003][ T253] ret_from_fork_asm+0x1a/0x30 [ 9568.557003][ T253] [ 9568.559150][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9568.559150][ T253] netdev_get_by_index+0x5e/0x80 [ 9568.559150][ T253] fib6_nh_init+0x3d8/0x1580 [ 9568.559150][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9568.559150][ T253] ip6_route_add+0x1c/0x140 [ 9568.559150][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9568.559150][ T253] inet6_addr_add+0x4f8/0xa40 [ 9568.559150][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9568.559150][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9568.559150][ T253] netlink_rcv_skb+0x130/0x360 [ 9568.559150][ T253] netlink_unicast+0x449/0x710 [ 9568.559150][ T253] netlink_sendmsg+0x723/0xbe0 [ 9568.559150][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9568.559150][ T253] ___sys_sendmsg+0xee/0x170 [ 9568.559150][ T253] __sys_sendmsg+0xcd/0x170 [ 9568.559150][ T253] do_syscall_64+0xc6/0x1e0 [ 9568.559150][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9568.559150][ T253] [ 9568.561383][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9568.561383][ T253] netdev_get_by_index+0x5e/0x80 [ 9568.561383][ T253] fib6_nh_init+0x3d8/0x1580 [ 9568.561383][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9568.561383][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9568.561383][ T253] ipv6_add_addr+0x411/0x2000 [ 9568.561383][ T253] inet6_addr_add+0x30e/0xa40 [ 9568.561383][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9568.561383][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9568.561383][ T253] netlink_rcv_skb+0x130/0x360 [ 9568.561383][ T253] netlink_unicast+0x449/0x710 [ 9568.561383][ T253] netlink_sendmsg+0x723/0xbe0 [ 9568.561383][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9568.561383][ T253] ___sys_sendmsg+0xee/0x170 [ 9568.561383][ T253] __sys_sendmsg+0xcd/0x170 [ 9568.561383][ T253] do_syscall_64+0xc6/0x1e0 [ 9568.561383][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9568.561383][ T253] [ 9568.563620][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9568.563620][ T253] netdev_get_by_index+0x5e/0x80 [ 9568.563620][ T253] fib6_nh_init+0x3d8/0x1580 [ 9568.563620][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9568.563620][ T253] ip6_route_add+0x1c/0x140 [ 9568.563620][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9568.563620][ T253] addrconf_add_dev+0xe2/0x170 [ 9568.563620][ T253] inet6_addr_add+0x12f/0xa40 [ 9568.563620][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9568.563620][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9568.563620][ T253] netlink_rcv_skb+0x130/0x360 [ 9568.563620][ T253] netlink_unicast+0x449/0x710 [ 9568.563620][ T253] netlink_sendmsg+0x723/0xbe0 [ 9568.563620][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9568.563620][ T253] ___sys_sendmsg+0xee/0x170 [ 9568.563620][ T253] __sys_sendmsg+0xcd/0x170 [ 9568.563620][ T253] do_syscall_64+0xc6/0x1e0 [ 9568.563620][ T253] [ 9568.565823][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9568.565823][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9568.565823][ T253] ipv6_find_idev+0x102/0x170 [ 9568.565823][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9568.565823][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9568.565823][ T253] netlink_rcv_skb+0x130/0x360 [ 9568.565823][ T253] netlink_unicast+0x449/0x710 [ 9568.565823][ T253] netlink_sendmsg+0x723/0xbe0 [ 9568.565823][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9568.565823][ T253] ___sys_sendmsg+0xee/0x170 [ 9568.565823][ T253] __sys_sendmsg+0xcd/0x170 [ 9568.565823][ T253] do_syscall_64+0xc6/0x1e0 [ 9568.565823][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9568.565823][ T253] [ 9568.567545][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9568.567545][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9568.567545][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9568.567545][ T253] ipv6_find_idev+0x102/0x170 [ 9568.567545][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9568.567545][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9568.567545][ T253] netlink_rcv_skb+0x130/0x360 [ 9568.567545][ T253] netlink_unicast+0x449/0x710 [ 9568.567545][ T253] netlink_sendmsg+0x723/0xbe0 [ 9568.567545][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9568.567545][ T253] ___sys_sendmsg+0xee/0x170 [ 9568.567545][ T253] __sys_sendmsg+0xcd/0x170 [ 9568.567545][ T253] do_syscall_64+0xc6/0x1e0 [ 9568.567545][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9568.567545][ T253] [ 9578.810301][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9578.810779][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9578.810779][ T253] dst_init+0x84/0x4a0 [ 9578.810779][ T253] dst_alloc+0x97/0x150 [ 9578.810779][ T253] ip6_dst_alloc+0x23/0x90 [ 9578.810779][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9578.810779][ T253] ip6_pol_route+0x56f/0x840 [ 9578.810779][ T253] fib6_rule_lookup+0x334/0x630 [ 9578.810779][ T253] ip6_route_output_flags+0x259/0x480 [ 9578.810779][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9578.810779][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9578.810779][ T253] netlink_rcv_skb+0x130/0x360 [ 9578.810779][ T253] netlink_unicast+0x449/0x710 [ 9578.810779][ T253] netlink_sendmsg+0x723/0xbe0 [ 9578.810779][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9578.810779][ T253] ___sys_sendmsg+0xee/0x170 [ 9578.810779][ T253] __sys_sendmsg+0xcd/0x170 [ 9578.810779][ T253] do_syscall_64+0xc6/0x1e0 [ 9578.810779][ T253] [ 9578.812968][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9578.812968][ T253] netdev_get_by_index+0x5e/0x80 [ 9578.812968][ T253] fib6_nh_init+0x3d8/0x1580 [ 9578.812968][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9578.812968][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9578.812968][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9578.812968][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9578.812968][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9578.812968][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9578.812968][ T253] addrconf_dad_begin+0x310/0x670 [ 9578.812968][ T253] addrconf_dad_work+0x10b/0xab0 [ 9578.812968][ T253] process_one_work+0x84d/0x18a0 [ 9578.812968][ T253] worker_thread+0x587/0xd30 [ 9578.812968][ T253] kthread+0x28a/0x350 [ 9578.812968][ T253] ret_from_fork+0x31/0x70 [ 9578.812968][ T253] ret_from_fork_asm+0x1a/0x30 [ 9578.812968][ T253] [ 9578.815114][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9578.815114][ T253] netdev_get_by_index+0x5e/0x80 [ 9578.815114][ T253] fib6_nh_init+0x3d8/0x1580 [ 9578.815114][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9578.815114][ T253] ip6_route_add+0x1c/0x140 [ 9578.815114][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9578.815114][ T253] inet6_addr_add+0x4f8/0xa40 [ 9578.815114][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9578.815114][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9578.815114][ T253] netlink_rcv_skb+0x130/0x360 [ 9578.815114][ T253] netlink_unicast+0x449/0x710 [ 9578.815114][ T253] netlink_sendmsg+0x723/0xbe0 [ 9578.815114][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9578.815114][ T253] ___sys_sendmsg+0xee/0x170 [ 9578.815114][ T253] __sys_sendmsg+0xcd/0x170 [ 9578.815114][ T253] do_syscall_64+0xc6/0x1e0 [ 9578.815114][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9578.815114][ T253] [ 9578.817356][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9578.817356][ T253] netdev_get_by_index+0x5e/0x80 [ 9578.817356][ T253] fib6_nh_init+0x3d8/0x1580 [ 9578.817356][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9578.817356][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9578.817356][ T253] ipv6_add_addr+0x411/0x2000 [ 9578.817356][ T253] inet6_addr_add+0x30e/0xa40 [ 9578.817356][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9578.817356][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9578.817356][ T253] netlink_rcv_skb+0x130/0x360 [ 9578.817356][ T253] netlink_unicast+0x449/0x710 [ 9578.817356][ T253] netlink_sendmsg+0x723/0xbe0 [ 9578.817356][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9578.817356][ T253] ___sys_sendmsg+0xee/0x170 [ 9578.817356][ T253] __sys_sendmsg+0xcd/0x170 [ 9578.817356][ T253] do_syscall_64+0xc6/0x1e0 [ 9578.817356][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9578.817356][ T253] [ 9578.819590][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9578.819590][ T253] netdev_get_by_index+0x5e/0x80 [ 9578.819590][ T253] fib6_nh_init+0x3d8/0x1580 [ 9578.819590][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9578.819590][ T253] ip6_route_add+0x1c/0x140 [ 9578.819590][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9578.819590][ T253] addrconf_add_dev+0xe2/0x170 [ 9578.819590][ T253] inet6_addr_add+0x12f/0xa40 [ 9578.819590][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9578.819590][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9578.819590][ T253] netlink_rcv_skb+0x130/0x360 [ 9578.819590][ T253] netlink_unicast+0x449/0x710 [ 9578.819590][ T253] netlink_sendmsg+0x723/0xbe0 [ 9578.819590][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9578.819590][ T253] ___sys_sendmsg+0xee/0x170 [ 9578.819590][ T253] __sys_sendmsg+0xcd/0x170 [ 9578.819590][ T253] do_syscall_64+0xc6/0x1e0 [ 9578.819590][ T253] [ 9578.821785][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9578.821785][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9578.821785][ T253] ipv6_find_idev+0x102/0x170 [ 9578.821785][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9578.821785][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9578.821785][ T253] netlink_rcv_skb+0x130/0x360 [ 9578.821785][ T253] netlink_unicast+0x449/0x710 [ 9578.821785][ T253] netlink_sendmsg+0x723/0xbe0 [ 9578.821785][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9578.821785][ T253] ___sys_sendmsg+0xee/0x170 [ 9578.821785][ T253] __sys_sendmsg+0xcd/0x170 [ 9578.821785][ T253] do_syscall_64+0xc6/0x1e0 [ 9578.821785][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9578.821785][ T253] [ 9578.823504][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9578.823504][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9578.823504][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9578.823504][ T253] ipv6_find_idev+0x102/0x170 [ 9578.823504][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9578.823504][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9578.823504][ T253] netlink_rcv_skb+0x130/0x360 [ 9578.823504][ T253] netlink_unicast+0x449/0x710 [ 9578.823504][ T253] netlink_sendmsg+0x723/0xbe0 [ 9578.823504][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9578.823504][ T253] ___sys_sendmsg+0xee/0x170 [ 9578.823504][ T253] __sys_sendmsg+0xcd/0x170 [ 9578.823504][ T253] do_syscall_64+0xc6/0x1e0 [ 9578.823504][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9578.823504][ T253] [ 9588.914293][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9588.914781][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9588.914781][ T253] dst_init+0x84/0x4a0 [ 9588.914781][ T253] dst_alloc+0x97/0x150 [ 9588.914781][ T253] ip6_dst_alloc+0x23/0x90 [ 9588.914781][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9588.914781][ T253] ip6_pol_route+0x56f/0x840 [ 9588.914781][ T253] fib6_rule_lookup+0x334/0x630 [ 9588.914781][ T253] ip6_route_output_flags+0x259/0x480 [ 9588.914781][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9588.914781][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9588.914781][ T253] netlink_rcv_skb+0x130/0x360 [ 9588.914781][ T253] netlink_unicast+0x449/0x710 [ 9588.914781][ T253] netlink_sendmsg+0x723/0xbe0 [ 9588.914781][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9588.914781][ T253] ___sys_sendmsg+0xee/0x170 [ 9588.914781][ T253] __sys_sendmsg+0xcd/0x170 [ 9588.914781][ T253] do_syscall_64+0xc6/0x1e0 [ 9588.914781][ T253] [ 9588.916990][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9588.916990][ T253] netdev_get_by_index+0x5e/0x80 [ 9588.916990][ T253] fib6_nh_init+0x3d8/0x1580 [ 9588.916990][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9588.916990][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9588.916990][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9588.916990][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9588.916990][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9588.916990][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9588.916990][ T253] addrconf_dad_begin+0x310/0x670 [ 9588.916990][ T253] addrconf_dad_work+0x10b/0xab0 [ 9588.916990][ T253] process_one_work+0x84d/0x18a0 [ 9588.916990][ T253] worker_thread+0x587/0xd30 [ 9588.916990][ T253] kthread+0x28a/0x350 [ 9588.916990][ T253] ret_from_fork+0x31/0x70 [ 9588.916990][ T253] ret_from_fork_asm+0x1a/0x30 [ 9588.916990][ T253] [ 9588.919135][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9588.919135][ T253] netdev_get_by_index+0x5e/0x80 [ 9588.919135][ T253] fib6_nh_init+0x3d8/0x1580 [ 9588.919135][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9588.919135][ T253] ip6_route_add+0x1c/0x140 [ 9588.919135][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9588.919135][ T253] inet6_addr_add+0x4f8/0xa40 [ 9588.919135][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9588.919135][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9588.919135][ T253] netlink_rcv_skb+0x130/0x360 [ 9588.919135][ T253] netlink_unicast+0x449/0x710 [ 9588.919135][ T253] netlink_sendmsg+0x723/0xbe0 [ 9588.919135][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9588.919135][ T253] ___sys_sendmsg+0xee/0x170 [ 9588.919135][ T253] __sys_sendmsg+0xcd/0x170 [ 9588.919135][ T253] do_syscall_64+0xc6/0x1e0 [ 9588.919135][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9588.919135][ T253] [ 9588.921370][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9588.921370][ T253] netdev_get_by_index+0x5e/0x80 [ 9588.921370][ T253] fib6_nh_init+0x3d8/0x1580 [ 9588.921370][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9588.921370][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9588.921370][ T253] ipv6_add_addr+0x411/0x2000 [ 9588.921370][ T253] inet6_addr_add+0x30e/0xa40 [ 9588.921370][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9588.921370][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9588.921370][ T253] netlink_rcv_skb+0x130/0x360 [ 9588.921370][ T253] netlink_unicast+0x449/0x710 [ 9588.921370][ T253] netlink_sendmsg+0x723/0xbe0 [ 9588.921370][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9588.921370][ T253] ___sys_sendmsg+0xee/0x170 [ 9588.921370][ T253] __sys_sendmsg+0xcd/0x170 [ 9588.921370][ T253] do_syscall_64+0xc6/0x1e0 [ 9588.921370][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9588.921370][ T253] [ 9588.923620][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9588.923620][ T253] netdev_get_by_index+0x5e/0x80 [ 9588.923620][ T253] fib6_nh_init+0x3d8/0x1580 [ 9588.923620][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9588.923620][ T253] ip6_route_add+0x1c/0x140 [ 9588.923620][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9588.923620][ T253] addrconf_add_dev+0xe2/0x170 [ 9588.923620][ T253] inet6_addr_add+0x12f/0xa40 [ 9588.923620][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9588.923620][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9588.923620][ T253] netlink_rcv_skb+0x130/0x360 [ 9588.923620][ T253] netlink_unicast+0x449/0x710 [ 9588.923620][ T253] netlink_sendmsg+0x723/0xbe0 [ 9588.923620][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9588.923620][ T253] ___sys_sendmsg+0xee/0x170 [ 9588.923620][ T253] __sys_sendmsg+0xcd/0x170 [ 9588.923620][ T253] do_syscall_64+0xc6/0x1e0 [ 9588.923620][ T253] [ 9588.925833][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9588.925833][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9588.925833][ T253] ipv6_find_idev+0x102/0x170 [ 9588.925833][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9588.925833][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9588.925833][ T253] netlink_rcv_skb+0x130/0x360 [ 9588.925833][ T253] netlink_unicast+0x449/0x710 [ 9588.925833][ T253] netlink_sendmsg+0x723/0xbe0 [ 9588.925833][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9588.925833][ T253] ___sys_sendmsg+0xee/0x170 [ 9588.925833][ T253] __sys_sendmsg+0xcd/0x170 [ 9588.925833][ T253] do_syscall_64+0xc6/0x1e0 [ 9588.925833][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9588.925833][ T253] [ 9588.927558][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9588.927558][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9588.927558][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9588.927558][ T253] ipv6_find_idev+0x102/0x170 [ 9588.927558][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9588.927558][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9588.927558][ T253] netlink_rcv_skb+0x130/0x360 [ 9588.927558][ T253] netlink_unicast+0x449/0x710 [ 9588.927558][ T253] netlink_sendmsg+0x723/0xbe0 [ 9588.927558][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9588.927558][ T253] ___sys_sendmsg+0xee/0x170 [ 9588.927558][ T253] __sys_sendmsg+0xcd/0x170 [ 9588.927558][ T253] do_syscall_64+0xc6/0x1e0 [ 9588.927558][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9588.927558][ T253] [ 9599.170330][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9599.170799][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9599.170799][ T253] dst_init+0x84/0x4a0 [ 9599.170799][ T253] dst_alloc+0x97/0x150 [ 9599.170799][ T253] ip6_dst_alloc+0x23/0x90 [ 9599.170799][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9599.170799][ T253] ip6_pol_route+0x56f/0x840 [ 9599.170799][ T253] fib6_rule_lookup+0x334/0x630 [ 9599.170799][ T253] ip6_route_output_flags+0x259/0x480 [ 9599.170799][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9599.170799][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9599.170799][ T253] netlink_rcv_skb+0x130/0x360 [ 9599.170799][ T253] netlink_unicast+0x449/0x710 [ 9599.170799][ T253] netlink_sendmsg+0x723/0xbe0 [ 9599.170799][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9599.170799][ T253] ___sys_sendmsg+0xee/0x170 [ 9599.170799][ T253] __sys_sendmsg+0xcd/0x170 [ 9599.170799][ T253] do_syscall_64+0xc6/0x1e0 [ 9599.170799][ T253] [ 9599.173000][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9599.173000][ T253] netdev_get_by_index+0x5e/0x80 [ 9599.173000][ T253] fib6_nh_init+0x3d8/0x1580 [ 9599.173000][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9599.173000][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9599.173000][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9599.173000][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9599.173000][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9599.173000][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9599.173000][ T253] addrconf_dad_begin+0x310/0x670 [ 9599.173000][ T253] addrconf_dad_work+0x10b/0xab0 [ 9599.173000][ T253] process_one_work+0x84d/0x18a0 [ 9599.173000][ T253] worker_thread+0x587/0xd30 [ 9599.173000][ T253] kthread+0x28a/0x350 [ 9599.173000][ T253] ret_from_fork+0x31/0x70 [ 9599.173000][ T253] ret_from_fork_asm+0x1a/0x30 [ 9599.173000][ T253] [ 9599.175144][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9599.175144][ T253] netdev_get_by_index+0x5e/0x80 [ 9599.175144][ T253] fib6_nh_init+0x3d8/0x1580 [ 9599.175144][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9599.175144][ T253] ip6_route_add+0x1c/0x140 [ 9599.175144][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9599.175144][ T253] inet6_addr_add+0x4f8/0xa40 [ 9599.175144][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9599.175144][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9599.175144][ T253] netlink_rcv_skb+0x130/0x360 [ 9599.175144][ T253] netlink_unicast+0x449/0x710 [ 9599.175144][ T253] netlink_sendmsg+0x723/0xbe0 [ 9599.175144][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9599.175144][ T253] ___sys_sendmsg+0xee/0x170 [ 9599.175144][ T253] __sys_sendmsg+0xcd/0x170 [ 9599.175144][ T253] do_syscall_64+0xc6/0x1e0 [ 9599.175144][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9599.175144][ T253] [ 9599.177401][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9599.177401][ T253] netdev_get_by_index+0x5e/0x80 [ 9599.177401][ T253] fib6_nh_init+0x3d8/0x1580 [ 9599.177401][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9599.177401][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9599.177401][ T253] ipv6_add_addr+0x411/0x2000 [ 9599.177401][ T253] inet6_addr_add+0x30e/0xa40 [ 9599.177401][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9599.177401][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9599.177401][ T253] netlink_rcv_skb+0x130/0x360 [ 9599.177401][ T253] netlink_unicast+0x449/0x710 [ 9599.177401][ T253] netlink_sendmsg+0x723/0xbe0 [ 9599.177401][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9599.177401][ T253] ___sys_sendmsg+0xee/0x170 [ 9599.177401][ T253] __sys_sendmsg+0xcd/0x170 [ 9599.177401][ T253] do_syscall_64+0xc6/0x1e0 [ 9599.177401][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9599.177401][ T253] [ 9599.179632][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9599.179632][ T253] netdev_get_by_index+0x5e/0x80 [ 9599.179632][ T253] fib6_nh_init+0x3d8/0x1580 [ 9599.179632][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9599.179632][ T253] ip6_route_add+0x1c/0x140 [ 9599.179632][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9599.179632][ T253] addrconf_add_dev+0xe2/0x170 [ 9599.179632][ T253] inet6_addr_add+0x12f/0xa40 [ 9599.179632][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9599.179632][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9599.179632][ T253] netlink_rcv_skb+0x130/0x360 [ 9599.179632][ T253] netlink_unicast+0x449/0x710 [ 9599.179632][ T253] netlink_sendmsg+0x723/0xbe0 [ 9599.179632][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9599.179632][ T253] ___sys_sendmsg+0xee/0x170 [ 9599.179632][ T253] __sys_sendmsg+0xcd/0x170 [ 9599.179632][ T253] do_syscall_64+0xc6/0x1e0 [ 9599.179632][ T253] [ 9599.181824][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9599.181824][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9599.181824][ T253] ipv6_find_idev+0x102/0x170 [ 9599.181824][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9599.181824][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9599.181824][ T253] netlink_rcv_skb+0x130/0x360 [ 9599.181824][ T253] netlink_unicast+0x449/0x710 [ 9599.181824][ T253] netlink_sendmsg+0x723/0xbe0 [ 9599.181824][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9599.181824][ T253] ___sys_sendmsg+0xee/0x170 [ 9599.181824][ T253] __sys_sendmsg+0xcd/0x170 [ 9599.181824][ T253] do_syscall_64+0xc6/0x1e0 [ 9599.181824][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9599.181824][ T253] [ 9599.183558][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9599.183558][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9599.183558][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9599.183558][ T253] ipv6_find_idev+0x102/0x170 [ 9599.183558][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9599.183558][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9599.183558][ T253] netlink_rcv_skb+0x130/0x360 [ 9599.183558][ T253] netlink_unicast+0x449/0x710 [ 9599.183558][ T253] netlink_sendmsg+0x723/0xbe0 [ 9599.183558][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9599.183558][ T253] ___sys_sendmsg+0xee/0x170 [ 9599.183558][ T253] __sys_sendmsg+0xcd/0x170 [ 9599.183558][ T253] do_syscall_64+0xc6/0x1e0 [ 9599.183558][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9599.183558][ T253] [ 9609.362296][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9609.362859][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9609.362859][ T253] dst_init+0x84/0x4a0 [ 9609.362859][ T253] dst_alloc+0x97/0x150 [ 9609.362859][ T253] ip6_dst_alloc+0x23/0x90 [ 9609.362859][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9609.362859][ T253] ip6_pol_route+0x56f/0x840 [ 9609.362859][ T253] fib6_rule_lookup+0x334/0x630 [ 9609.362859][ T253] ip6_route_output_flags+0x259/0x480 [ 9609.362859][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9609.362859][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9609.362859][ T253] netlink_rcv_skb+0x130/0x360 [ 9609.362859][ T253] netlink_unicast+0x449/0x710 [ 9609.362859][ T253] netlink_sendmsg+0x723/0xbe0 [ 9609.362859][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9609.362859][ T253] ___sys_sendmsg+0xee/0x170 [ 9609.362859][ T253] __sys_sendmsg+0xcd/0x170 [ 9609.362859][ T253] do_syscall_64+0xc6/0x1e0 [ 9609.362859][ T253] [ 9609.366447][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9609.366447][ T253] netdev_get_by_index+0x5e/0x80 [ 9609.366447][ T253] fib6_nh_init+0x3d8/0x1580 [ 9609.366447][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9609.366447][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9609.366447][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9609.366447][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9609.366447][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9609.366447][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9609.366447][ T253] addrconf_dad_begin+0x310/0x670 [ 9609.366447][ T253] addrconf_dad_work+0x10b/0xab0 [ 9609.366447][ T253] process_one_work+0x84d/0x18a0 [ 9609.366447][ T253] worker_thread+0x587/0xd30 [ 9609.366447][ T253] kthread+0x28a/0x350 [ 9609.366447][ T253] ret_from_fork+0x31/0x70 [ 9609.366447][ T253] ret_from_fork_asm+0x1a/0x30 [ 9609.366447][ T253] [ 9609.369955][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9609.369955][ T253] netdev_get_by_index+0x5e/0x80 [ 9609.369955][ T253] fib6_nh_init+0x3d8/0x1580 [ 9609.369955][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9609.369955][ T253] ip6_route_add+0x1c/0x140 [ 9609.369955][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9609.369955][ T253] inet6_addr_add+0x4f8/0xa40 [ 9609.369955][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9609.369955][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9609.369955][ T253] netlink_rcv_skb+0x130/0x360 [ 9609.369955][ T253] netlink_unicast+0x449/0x710 [ 9609.369955][ T253] netlink_sendmsg+0x723/0xbe0 [ 9609.369955][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9609.369955][ T253] ___sys_sendmsg+0xee/0x170 [ 9609.369955][ T253] __sys_sendmsg+0xcd/0x170 [ 9609.369955][ T253] do_syscall_64+0xc6/0x1e0 [ 9609.369955][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9609.369955][ T253] [ 9609.373627][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9609.373627][ T253] netdev_get_by_index+0x5e/0x80 [ 9609.373627][ T253] fib6_nh_init+0x3d8/0x1580 [ 9609.373627][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9609.373627][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9609.373627][ T253] ipv6_add_addr+0x411/0x2000 [ 9609.373627][ T253] inet6_addr_add+0x30e/0xa40 [ 9609.373627][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9609.373627][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9609.373627][ T253] netlink_rcv_skb+0x130/0x360 [ 9609.373627][ T253] netlink_unicast+0x449/0x710 [ 9609.373627][ T253] netlink_sendmsg+0x723/0xbe0 [ 9609.373627][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9609.373627][ T253] ___sys_sendmsg+0xee/0x170 [ 9609.373627][ T253] __sys_sendmsg+0xcd/0x170 [ 9609.373627][ T253] do_syscall_64+0xc6/0x1e0 [ 9609.373627][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9609.373627][ T253] [ 9609.377305][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9609.377305][ T253] netdev_get_by_index+0x5e/0x80 [ 9609.377305][ T253] fib6_nh_init+0x3d8/0x1580 [ 9609.377305][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9609.377305][ T253] ip6_route_add+0x1c/0x140 [ 9609.377305][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9609.377305][ T253] addrconf_add_dev+0xe2/0x170 [ 9609.377305][ T253] inet6_addr_add+0x12f/0xa40 [ 9609.377305][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9609.377305][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9609.377305][ T253] netlink_rcv_skb+0x130/0x360 [ 9609.377305][ T253] netlink_unicast+0x449/0x710 [ 9609.377305][ T253] netlink_sendmsg+0x723/0xbe0 [ 9609.377305][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9609.377305][ T253] ___sys_sendmsg+0xee/0x170 [ 9609.377305][ T253] __sys_sendmsg+0xcd/0x170 [ 9609.377305][ T253] do_syscall_64+0xc6/0x1e0 [ 9609.377305][ T253] [ 9609.380921][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9609.380921][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9609.380921][ T253] ipv6_find_idev+0x102/0x170 [ 9609.380921][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9609.380921][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9609.380921][ T253] netlink_rcv_skb+0x130/0x360 [ 9609.380921][ T253] netlink_unicast+0x449/0x710 [ 9609.380921][ T253] netlink_sendmsg+0x723/0xbe0 [ 9609.380921][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9609.380921][ T253] ___sys_sendmsg+0xee/0x170 [ 9609.380921][ T253] __sys_sendmsg+0xcd/0x170 [ 9609.380921][ T253] do_syscall_64+0xc6/0x1e0 [ 9609.380921][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9609.380921][ T253] [ 9609.383746][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9609.383746][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9609.383746][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9609.383746][ T253] ipv6_find_idev+0x102/0x170 [ 9609.383746][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9609.383746][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9609.383746][ T253] netlink_rcv_skb+0x130/0x360 [ 9609.383746][ T253] netlink_unicast+0x449/0x710 [ 9609.383746][ T253] netlink_sendmsg+0x723/0xbe0 [ 9609.383746][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9609.383746][ T253] ___sys_sendmsg+0xee/0x170 [ 9609.383746][ T253] __sys_sendmsg+0xcd/0x170 [ 9609.383746][ T253] do_syscall_64+0xc6/0x1e0 [ 9609.383746][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9609.383746][ T253] [ 9619.634318][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9619.634791][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9619.634791][ T253] dst_init+0x84/0x4a0 [ 9619.634791][ T253] dst_alloc+0x97/0x150 [ 9619.634791][ T253] ip6_dst_alloc+0x23/0x90 [ 9619.634791][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9619.634791][ T253] ip6_pol_route+0x56f/0x840 [ 9619.634791][ T253] fib6_rule_lookup+0x334/0x630 [ 9619.634791][ T253] ip6_route_output_flags+0x259/0x480 [ 9619.634791][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9619.634791][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9619.634791][ T253] netlink_rcv_skb+0x130/0x360 [ 9619.634791][ T253] netlink_unicast+0x449/0x710 [ 9619.634791][ T253] netlink_sendmsg+0x723/0xbe0 [ 9619.634791][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9619.634791][ T253] ___sys_sendmsg+0xee/0x170 [ 9619.634791][ T253] __sys_sendmsg+0xcd/0x170 [ 9619.634791][ T253] do_syscall_64+0xc6/0x1e0 [ 9619.634791][ T253] [ 9619.637001][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9619.637001][ T253] netdev_get_by_index+0x5e/0x80 [ 9619.637001][ T253] fib6_nh_init+0x3d8/0x1580 [ 9619.637001][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9619.637001][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9619.637001][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9619.637001][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9619.637001][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9619.637001][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9619.637001][ T253] addrconf_dad_begin+0x310/0x670 [ 9619.637001][ T253] addrconf_dad_work+0x10b/0xab0 [ 9619.637001][ T253] process_one_work+0x84d/0x18a0 [ 9619.637001][ T253] worker_thread+0x587/0xd30 [ 9619.637001][ T253] kthread+0x28a/0x350 [ 9619.637001][ T253] ret_from_fork+0x31/0x70 [ 9619.637001][ T253] ret_from_fork_asm+0x1a/0x30 [ 9619.637001][ T253] [ 9619.639143][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9619.639143][ T253] netdev_get_by_index+0x5e/0x80 [ 9619.639143][ T253] fib6_nh_init+0x3d8/0x1580 [ 9619.639143][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9619.639143][ T253] ip6_route_add+0x1c/0x140 [ 9619.639143][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9619.639143][ T253] inet6_addr_add+0x4f8/0xa40 [ 9619.639143][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9619.639143][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9619.639143][ T253] netlink_rcv_skb+0x130/0x360 [ 9619.639143][ T253] netlink_unicast+0x449/0x710 [ 9619.639143][ T253] netlink_sendmsg+0x723/0xbe0 [ 9619.639143][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9619.639143][ T253] ___sys_sendmsg+0xee/0x170 [ 9619.639143][ T253] __sys_sendmsg+0xcd/0x170 [ 9619.639143][ T253] do_syscall_64+0xc6/0x1e0 [ 9619.639143][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9619.639143][ T253] [ 9619.641383][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9619.641383][ T253] netdev_get_by_index+0x5e/0x80 [ 9619.641383][ T253] fib6_nh_init+0x3d8/0x1580 [ 9619.641383][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9619.641383][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9619.641383][ T253] ipv6_add_addr+0x411/0x2000 [ 9619.641383][ T253] inet6_addr_add+0x30e/0xa40 [ 9619.641383][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9619.641383][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9619.641383][ T253] netlink_rcv_skb+0x130/0x360 [ 9619.641383][ T253] netlink_unicast+0x449/0x710 [ 9619.641383][ T253] netlink_sendmsg+0x723/0xbe0 [ 9619.641383][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9619.641383][ T253] ___sys_sendmsg+0xee/0x170 [ 9619.641383][ T253] __sys_sendmsg+0xcd/0x170 [ 9619.641383][ T253] do_syscall_64+0xc6/0x1e0 [ 9619.641383][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9619.641383][ T253] [ 9619.643640][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9619.643640][ T253] netdev_get_by_index+0x5e/0x80 [ 9619.643640][ T253] fib6_nh_init+0x3d8/0x1580 [ 9619.643640][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9619.643640][ T253] ip6_route_add+0x1c/0x140 [ 9619.643640][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9619.643640][ T253] addrconf_add_dev+0xe2/0x170 [ 9619.643640][ T253] inet6_addr_add+0x12f/0xa40 [ 9619.643640][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9619.643640][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9619.643640][ T253] netlink_rcv_skb+0x130/0x360 [ 9619.643640][ T253] netlink_unicast+0x449/0x710 [ 9619.643640][ T253] netlink_sendmsg+0x723/0xbe0 [ 9619.643640][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9619.643640][ T253] ___sys_sendmsg+0xee/0x170 [ 9619.643640][ T253] __sys_sendmsg+0xcd/0x170 [ 9619.643640][ T253] do_syscall_64+0xc6/0x1e0 [ 9619.643640][ T253] [ 9619.645846][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9619.645846][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9619.645846][ T253] ipv6_find_idev+0x102/0x170 [ 9619.645846][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9619.645846][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9619.645846][ T253] netlink_rcv_skb+0x130/0x360 [ 9619.645846][ T253] netlink_unicast+0x449/0x710 [ 9619.645846][ T253] netlink_sendmsg+0x723/0xbe0 [ 9619.645846][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9619.645846][ T253] ___sys_sendmsg+0xee/0x170 [ 9619.645846][ T253] __sys_sendmsg+0xcd/0x170 [ 9619.645846][ T253] do_syscall_64+0xc6/0x1e0 [ 9619.645846][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9619.645846][ T253] [ 9619.647566][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9619.647566][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9619.647566][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9619.647566][ T253] ipv6_find_idev+0x102/0x170 [ 9619.647566][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9619.647566][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9619.647566][ T253] netlink_rcv_skb+0x130/0x360 [ 9619.647566][ T253] netlink_unicast+0x449/0x710 [ 9619.647566][ T253] netlink_sendmsg+0x723/0xbe0 [ 9619.647566][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9619.647566][ T253] ___sys_sendmsg+0xee/0x170 [ 9619.647566][ T253] __sys_sendmsg+0xcd/0x170 [ 9619.647566][ T253] do_syscall_64+0xc6/0x1e0 [ 9619.647566][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9619.647566][ T253] [ 9629.898308][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9629.898791][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9629.898791][ T253] dst_init+0x84/0x4a0 [ 9629.898791][ T253] dst_alloc+0x97/0x150 [ 9629.898791][ T253] ip6_dst_alloc+0x23/0x90 [ 9629.898791][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9629.898791][ T253] ip6_pol_route+0x56f/0x840 [ 9629.898791][ T253] fib6_rule_lookup+0x334/0x630 [ 9629.898791][ T253] ip6_route_output_flags+0x259/0x480 [ 9629.898791][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9629.898791][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9629.898791][ T253] netlink_rcv_skb+0x130/0x360 [ 9629.898791][ T253] netlink_unicast+0x449/0x710 [ 9629.898791][ T253] netlink_sendmsg+0x723/0xbe0 [ 9629.898791][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9629.898791][ T253] ___sys_sendmsg+0xee/0x170 [ 9629.898791][ T253] __sys_sendmsg+0xcd/0x170 [ 9629.898791][ T253] do_syscall_64+0xc6/0x1e0 [ 9629.898791][ T253] [ 9629.900977][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9629.900977][ T253] netdev_get_by_index+0x5e/0x80 [ 9629.900977][ T253] fib6_nh_init+0x3d8/0x1580 [ 9629.900977][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9629.900977][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9629.900977][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9629.900977][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9629.900977][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9629.900977][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9629.900977][ T253] addrconf_dad_begin+0x310/0x670 [ 9629.900977][ T253] addrconf_dad_work+0x10b/0xab0 [ 9629.900977][ T253] process_one_work+0x84d/0x18a0 [ 9629.900977][ T253] worker_thread+0x587/0xd30 [ 9629.900977][ T253] kthread+0x28a/0x350 [ 9629.900977][ T253] ret_from_fork+0x31/0x70 [ 9629.900977][ T253] ret_from_fork_asm+0x1a/0x30 [ 9629.900977][ T253] [ 9629.903116][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9629.903116][ T253] netdev_get_by_index+0x5e/0x80 [ 9629.903116][ T253] fib6_nh_init+0x3d8/0x1580 [ 9629.903116][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9629.903116][ T253] ip6_route_add+0x1c/0x140 [ 9629.903116][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9629.903116][ T253] inet6_addr_add+0x4f8/0xa40 [ 9629.903116][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9629.903116][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9629.903116][ T253] netlink_rcv_skb+0x130/0x360 [ 9629.903116][ T253] netlink_unicast+0x449/0x710 [ 9629.903116][ T253] netlink_sendmsg+0x723/0xbe0 [ 9629.903116][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9629.903116][ T253] ___sys_sendmsg+0xee/0x170 [ 9629.903116][ T253] __sys_sendmsg+0xcd/0x170 [ 9629.903116][ T253] do_syscall_64+0xc6/0x1e0 [ 9629.903116][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9629.903116][ T253] [ 9629.905366][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9629.905366][ T253] netdev_get_by_index+0x5e/0x80 [ 9629.905366][ T253] fib6_nh_init+0x3d8/0x1580 [ 9629.905366][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9629.905366][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9629.905366][ T253] ipv6_add_addr+0x411/0x2000 [ 9629.905366][ T253] inet6_addr_add+0x30e/0xa40 [ 9629.905366][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9629.905366][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9629.905366][ T253] netlink_rcv_skb+0x130/0x360 [ 9629.905366][ T253] netlink_unicast+0x449/0x710 [ 9629.905366][ T253] netlink_sendmsg+0x723/0xbe0 [ 9629.905366][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9629.905366][ T253] ___sys_sendmsg+0xee/0x170 [ 9629.905366][ T253] __sys_sendmsg+0xcd/0x170 [ 9629.905366][ T253] do_syscall_64+0xc6/0x1e0 [ 9629.905366][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9629.905366][ T253] [ 9629.907601][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9629.907601][ T253] netdev_get_by_index+0x5e/0x80 [ 9629.907601][ T253] fib6_nh_init+0x3d8/0x1580 [ 9629.907601][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9629.907601][ T253] ip6_route_add+0x1c/0x140 [ 9629.907601][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9629.907601][ T253] addrconf_add_dev+0xe2/0x170 [ 9629.907601][ T253] inet6_addr_add+0x12f/0xa40 [ 9629.907601][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9629.907601][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9629.907601][ T253] netlink_rcv_skb+0x130/0x360 [ 9629.907601][ T253] netlink_unicast+0x449/0x710 [ 9629.907601][ T253] netlink_sendmsg+0x723/0xbe0 [ 9629.907601][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9629.907601][ T253] ___sys_sendmsg+0xee/0x170 [ 9629.907601][ T253] __sys_sendmsg+0xcd/0x170 [ 9629.907601][ T253] do_syscall_64+0xc6/0x1e0 [ 9629.907601][ T253] [ 9629.909801][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9629.909801][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9629.909801][ T253] ipv6_find_idev+0x102/0x170 [ 9629.909801][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9629.909801][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9629.909801][ T253] netlink_rcv_skb+0x130/0x360 [ 9629.909801][ T253] netlink_unicast+0x449/0x710 [ 9629.909801][ T253] netlink_sendmsg+0x723/0xbe0 [ 9629.909801][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9629.909801][ T253] ___sys_sendmsg+0xee/0x170 [ 9629.909801][ T253] __sys_sendmsg+0xcd/0x170 [ 9629.909801][ T253] do_syscall_64+0xc6/0x1e0 [ 9629.909801][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9629.909801][ T253] [ 9629.911526][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9629.911526][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9629.911526][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9629.911526][ T253] ipv6_find_idev+0x102/0x170 [ 9629.911526][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9629.911526][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9629.911526][ T253] netlink_rcv_skb+0x130/0x360 [ 9629.911526][ T253] netlink_unicast+0x449/0x710 [ 9629.911526][ T253] netlink_sendmsg+0x723/0xbe0 [ 9629.911526][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9629.911526][ T253] ___sys_sendmsg+0xee/0x170 [ 9629.911526][ T253] __sys_sendmsg+0xcd/0x170 [ 9629.911526][ T253] do_syscall_64+0xc6/0x1e0 [ 9629.911526][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9629.911526][ T253] [ 9639.938237][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9639.938712][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9639.938712][ T253] dst_init+0x84/0x4a0 [ 9639.938712][ T253] dst_alloc+0x97/0x150 [ 9639.938712][ T253] ip6_dst_alloc+0x23/0x90 [ 9639.938712][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9639.938712][ T253] ip6_pol_route+0x56f/0x840 [ 9639.938712][ T253] fib6_rule_lookup+0x334/0x630 [ 9639.938712][ T253] ip6_route_output_flags+0x259/0x480 [ 9639.938712][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9639.938712][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9639.938712][ T253] netlink_rcv_skb+0x130/0x360 [ 9639.938712][ T253] netlink_unicast+0x449/0x710 [ 9639.938712][ T253] netlink_sendmsg+0x723/0xbe0 [ 9639.938712][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9639.938712][ T253] ___sys_sendmsg+0xee/0x170 [ 9639.938712][ T253] __sys_sendmsg+0xcd/0x170 [ 9639.938712][ T253] do_syscall_64+0xc6/0x1e0 [ 9639.938712][ T253] [ 9639.940922][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9639.940922][ T253] netdev_get_by_index+0x5e/0x80 [ 9639.940922][ T253] fib6_nh_init+0x3d8/0x1580 [ 9639.940922][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9639.940922][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9639.940922][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9639.940922][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9639.940922][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9639.940922][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9639.940922][ T253] addrconf_dad_begin+0x310/0x670 [ 9639.940922][ T253] addrconf_dad_work+0x10b/0xab0 [ 9639.940922][ T253] process_one_work+0x84d/0x18a0 [ 9639.940922][ T253] worker_thread+0x587/0xd30 [ 9639.940922][ T253] kthread+0x28a/0x350 [ 9639.940922][ T253] ret_from_fork+0x31/0x70 [ 9639.940922][ T253] ret_from_fork_asm+0x1a/0x30 [ 9639.940922][ T253] [ 9639.943067][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9639.943067][ T253] netdev_get_by_index+0x5e/0x80 [ 9639.943067][ T253] fib6_nh_init+0x3d8/0x1580 [ 9639.943067][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9639.943067][ T253] ip6_route_add+0x1c/0x140 [ 9639.943067][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9639.943067][ T253] inet6_addr_add+0x4f8/0xa40 [ 9639.943067][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9639.943067][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9639.943067][ T253] netlink_rcv_skb+0x130/0x360 [ 9639.943067][ T253] netlink_unicast+0x449/0x710 [ 9639.943067][ T253] netlink_sendmsg+0x723/0xbe0 [ 9639.943067][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9639.943067][ T253] ___sys_sendmsg+0xee/0x170 [ 9639.943067][ T253] __sys_sendmsg+0xcd/0x170 [ 9639.943067][ T253] do_syscall_64+0xc6/0x1e0 [ 9639.943067][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9639.943067][ T253] [ 9639.945325][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9639.945325][ T253] netdev_get_by_index+0x5e/0x80 [ 9639.945325][ T253] fib6_nh_init+0x3d8/0x1580 [ 9639.945325][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9639.945325][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9639.945325][ T253] ipv6_add_addr+0x411/0x2000 [ 9639.945325][ T253] inet6_addr_add+0x30e/0xa40 [ 9639.945325][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9639.945325][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9639.945325][ T253] netlink_rcv_skb+0x130/0x360 [ 9639.945325][ T253] netlink_unicast+0x449/0x710 [ 9639.945325][ T253] netlink_sendmsg+0x723/0xbe0 [ 9639.945325][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9639.945325][ T253] ___sys_sendmsg+0xee/0x170 [ 9639.945325][ T253] __sys_sendmsg+0xcd/0x170 [ 9639.945325][ T253] do_syscall_64+0xc6/0x1e0 [ 9639.945325][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9639.945325][ T253] [ 9639.947579][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9639.947579][ T253] netdev_get_by_index+0x5e/0x80 [ 9639.947579][ T253] fib6_nh_init+0x3d8/0x1580 [ 9639.947579][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9639.947579][ T253] ip6_route_add+0x1c/0x140 [ 9639.947579][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9639.947579][ T253] addrconf_add_dev+0xe2/0x170 [ 9639.947579][ T253] inet6_addr_add+0x12f/0xa40 [ 9639.947579][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9639.947579][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9639.947579][ T253] netlink_rcv_skb+0x130/0x360 [ 9639.947579][ T253] netlink_unicast+0x449/0x710 [ 9639.947579][ T253] netlink_sendmsg+0x723/0xbe0 [ 9639.947579][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9639.947579][ T253] ___sys_sendmsg+0xee/0x170 [ 9639.947579][ T253] __sys_sendmsg+0xcd/0x170 [ 9639.947579][ T253] do_syscall_64+0xc6/0x1e0 [ 9639.947579][ T253] [ 9639.949786][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9639.949786][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9639.949786][ T253] ipv6_find_idev+0x102/0x170 [ 9639.949786][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9639.949786][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9639.949786][ T253] netlink_rcv_skb+0x130/0x360 [ 9639.949786][ T253] netlink_unicast+0x449/0x710 [ 9639.949786][ T253] netlink_sendmsg+0x723/0xbe0 [ 9639.949786][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9639.949786][ T253] ___sys_sendmsg+0xee/0x170 [ 9639.949786][ T253] __sys_sendmsg+0xcd/0x170 [ 9639.949786][ T253] do_syscall_64+0xc6/0x1e0 [ 9639.949786][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9639.949786][ T253] [ 9639.951513][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9639.951513][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9639.951513][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9639.951513][ T253] ipv6_find_idev+0x102/0x170 [ 9639.951513][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9639.951513][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9639.951513][ T253] netlink_rcv_skb+0x130/0x360 [ 9639.951513][ T253] netlink_unicast+0x449/0x710 [ 9639.951513][ T253] netlink_sendmsg+0x723/0xbe0 [ 9639.951513][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9639.951513][ T253] ___sys_sendmsg+0xee/0x170 [ 9639.951513][ T253] __sys_sendmsg+0xcd/0x170 [ 9639.951513][ T253] do_syscall_64+0xc6/0x1e0 [ 9639.951513][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9639.951513][ T253] [ 9650.194222][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9650.194713][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9650.194713][ T253] dst_init+0x84/0x4a0 [ 9650.194713][ T253] dst_alloc+0x97/0x150 [ 9650.194713][ T253] ip6_dst_alloc+0x23/0x90 [ 9650.194713][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9650.194713][ T253] ip6_pol_route+0x56f/0x840 [ 9650.194713][ T253] fib6_rule_lookup+0x334/0x630 [ 9650.194713][ T253] ip6_route_output_flags+0x259/0x480 [ 9650.194713][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9650.194713][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9650.194713][ T253] netlink_rcv_skb+0x130/0x360 [ 9650.194713][ T253] netlink_unicast+0x449/0x710 [ 9650.194713][ T253] netlink_sendmsg+0x723/0xbe0 [ 9650.194713][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9650.194713][ T253] ___sys_sendmsg+0xee/0x170 [ 9650.194713][ T253] __sys_sendmsg+0xcd/0x170 [ 9650.194713][ T253] do_syscall_64+0xc6/0x1e0 [ 9650.194713][ T253] [ 9650.196921][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9650.196921][ T253] netdev_get_by_index+0x5e/0x80 [ 9650.196921][ T253] fib6_nh_init+0x3d8/0x1580 [ 9650.196921][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9650.196921][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9650.196921][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9650.196921][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9650.196921][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9650.196921][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9650.196921][ T253] addrconf_dad_begin+0x310/0x670 [ 9650.196921][ T253] addrconf_dad_work+0x10b/0xab0 [ 9650.196921][ T253] process_one_work+0x84d/0x18a0 [ 9650.196921][ T253] worker_thread+0x587/0xd30 [ 9650.196921][ T253] kthread+0x28a/0x350 [ 9650.196921][ T253] ret_from_fork+0x31/0x70 [ 9650.196921][ T253] ret_from_fork_asm+0x1a/0x30 [ 9650.196921][ T253] [ 9650.199071][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9650.199071][ T253] netdev_get_by_index+0x5e/0x80 [ 9650.199071][ T253] fib6_nh_init+0x3d8/0x1580 [ 9650.199071][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9650.199071][ T253] ip6_route_add+0x1c/0x140 [ 9650.199071][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9650.199071][ T253] inet6_addr_add+0x4f8/0xa40 [ 9650.199071][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9650.199071][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9650.199071][ T253] netlink_rcv_skb+0x130/0x360 [ 9650.199071][ T253] netlink_unicast+0x449/0x710 [ 9650.199071][ T253] netlink_sendmsg+0x723/0xbe0 [ 9650.199071][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9650.199071][ T253] ___sys_sendmsg+0xee/0x170 [ 9650.199071][ T253] __sys_sendmsg+0xcd/0x170 [ 9650.199071][ T253] do_syscall_64+0xc6/0x1e0 [ 9650.199071][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9650.199071][ T253] [ 9650.201315][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9650.201315][ T253] netdev_get_by_index+0x5e/0x80 [ 9650.201315][ T253] fib6_nh_init+0x3d8/0x1580 [ 9650.201315][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9650.201315][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9650.201315][ T253] ipv6_add_addr+0x411/0x2000 [ 9650.201315][ T253] inet6_addr_add+0x30e/0xa40 [ 9650.201315][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9650.201315][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9650.201315][ T253] netlink_rcv_skb+0x130/0x360 [ 9650.201315][ T253] netlink_unicast+0x449/0x710 [ 9650.201315][ T253] netlink_sendmsg+0x723/0xbe0 [ 9650.201315][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9650.201315][ T253] ___sys_sendmsg+0xee/0x170 [ 9650.201315][ T253] __sys_sendmsg+0xcd/0x170 [ 9650.201315][ T253] do_syscall_64+0xc6/0x1e0 [ 9650.201315][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9650.201315][ T253] [ 9650.203558][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9650.203558][ T253] netdev_get_by_index+0x5e/0x80 [ 9650.203558][ T253] fib6_nh_init+0x3d8/0x1580 [ 9650.203558][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9650.203558][ T253] ip6_route_add+0x1c/0x140 [ 9650.203558][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9650.203558][ T253] addrconf_add_dev+0xe2/0x170 [ 9650.203558][ T253] inet6_addr_add+0x12f/0xa40 [ 9650.203558][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9650.203558][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9650.203558][ T253] netlink_rcv_skb+0x130/0x360 [ 9650.203558][ T253] netlink_unicast+0x449/0x710 [ 9650.203558][ T253] netlink_sendmsg+0x723/0xbe0 [ 9650.203558][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9650.203558][ T253] ___sys_sendmsg+0xee/0x170 [ 9650.203558][ T253] __sys_sendmsg+0xcd/0x170 [ 9650.203558][ T253] do_syscall_64+0xc6/0x1e0 [ 9650.203558][ T253] [ 9650.205779][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9650.205779][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9650.205779][ T253] ipv6_find_idev+0x102/0x170 [ 9650.205779][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9650.205779][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9650.205779][ T253] netlink_rcv_skb+0x130/0x360 [ 9650.205779][ T253] netlink_unicast+0x449/0x710 [ 9650.205779][ T253] netlink_sendmsg+0x723/0xbe0 [ 9650.205779][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9650.205779][ T253] ___sys_sendmsg+0xee/0x170 [ 9650.205779][ T253] __sys_sendmsg+0xcd/0x170 [ 9650.205779][ T253] do_syscall_64+0xc6/0x1e0 [ 9650.205779][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9650.205779][ T253] [ 9650.207506][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9650.207506][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9650.207506][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9650.207506][ T253] ipv6_find_idev+0x102/0x170 [ 9650.207506][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9650.207506][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9650.207506][ T253] netlink_rcv_skb+0x130/0x360 [ 9650.207506][ T253] netlink_unicast+0x449/0x710 [ 9650.207506][ T253] netlink_sendmsg+0x723/0xbe0 [ 9650.207506][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9650.207506][ T253] ___sys_sendmsg+0xee/0x170 [ 9650.207506][ T253] __sys_sendmsg+0xcd/0x170 [ 9650.207506][ T253] do_syscall_64+0xc6/0x1e0 [ 9650.207506][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9650.207506][ T253] [ 9660.274383][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9660.274854][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9660.274854][ T253] dst_init+0x84/0x4a0 [ 9660.274854][ T253] dst_alloc+0x97/0x150 [ 9660.274854][ T253] ip6_dst_alloc+0x23/0x90 [ 9660.274854][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9660.274854][ T253] ip6_pol_route+0x56f/0x840 [ 9660.274854][ T253] fib6_rule_lookup+0x334/0x630 [ 9660.274854][ T253] ip6_route_output_flags+0x259/0x480 [ 9660.274854][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9660.274854][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9660.274854][ T253] netlink_rcv_skb+0x130/0x360 [ 9660.274854][ T253] netlink_unicast+0x449/0x710 [ 9660.274854][ T253] netlink_sendmsg+0x723/0xbe0 [ 9660.274854][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9660.274854][ T253] ___sys_sendmsg+0xee/0x170 [ 9660.274854][ T253] __sys_sendmsg+0xcd/0x170 [ 9660.274854][ T253] do_syscall_64+0xc6/0x1e0 [ 9660.274854][ T253] [ 9660.277074][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9660.277074][ T253] netdev_get_by_index+0x5e/0x80 [ 9660.277074][ T253] fib6_nh_init+0x3d8/0x1580 [ 9660.277074][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9660.277074][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9660.277074][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9660.277074][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9660.277074][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9660.277074][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9660.277074][ T253] addrconf_dad_begin+0x310/0x670 [ 9660.277074][ T253] addrconf_dad_work+0x10b/0xab0 [ 9660.277074][ T253] process_one_work+0x84d/0x18a0 [ 9660.277074][ T253] worker_thread+0x587/0xd30 [ 9660.277074][ T253] kthread+0x28a/0x350 [ 9660.277074][ T253] ret_from_fork+0x31/0x70 [ 9660.277074][ T253] ret_from_fork_asm+0x1a/0x30 [ 9660.277074][ T253] [ 9660.279213][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9660.279213][ T253] netdev_get_by_index+0x5e/0x80 [ 9660.279213][ T253] fib6_nh_init+0x3d8/0x1580 [ 9660.279213][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9660.279213][ T253] ip6_route_add+0x1c/0x140 [ 9660.279213][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9660.279213][ T253] inet6_addr_add+0x4f8/0xa40 [ 9660.279213][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9660.279213][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9660.279213][ T253] netlink_rcv_skb+0x130/0x360 [ 9660.279213][ T253] netlink_unicast+0x449/0x710 [ 9660.279213][ T253] netlink_sendmsg+0x723/0xbe0 [ 9660.279213][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9660.279213][ T253] ___sys_sendmsg+0xee/0x170 [ 9660.279213][ T253] __sys_sendmsg+0xcd/0x170 [ 9660.279213][ T253] do_syscall_64+0xc6/0x1e0 [ 9660.279213][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9660.279213][ T253] [ 9660.281460][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9660.281460][ T253] netdev_get_by_index+0x5e/0x80 [ 9660.281460][ T253] fib6_nh_init+0x3d8/0x1580 [ 9660.281460][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9660.281460][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9660.281460][ T253] ipv6_add_addr+0x411/0x2000 [ 9660.281460][ T253] inet6_addr_add+0x30e/0xa40 [ 9660.281460][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9660.281460][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9660.281460][ T253] netlink_rcv_skb+0x130/0x360 [ 9660.281460][ T253] netlink_unicast+0x449/0x710 [ 9660.281460][ T253] netlink_sendmsg+0x723/0xbe0 [ 9660.281460][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9660.281460][ T253] ___sys_sendmsg+0xee/0x170 [ 9660.281460][ T253] __sys_sendmsg+0xcd/0x170 [ 9660.281460][ T253] do_syscall_64+0xc6/0x1e0 [ 9660.281460][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9660.281460][ T253] [ 9660.283689][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9660.283689][ T253] netdev_get_by_index+0x5e/0x80 [ 9660.283689][ T253] fib6_nh_init+0x3d8/0x1580 [ 9660.283689][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9660.283689][ T253] ip6_route_add+0x1c/0x140 [ 9660.283689][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9660.283689][ T253] addrconf_add_dev+0xe2/0x170 [ 9660.283689][ T253] inet6_addr_add+0x12f/0xa40 [ 9660.283689][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9660.283689][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9660.283689][ T253] netlink_rcv_skb+0x130/0x360 [ 9660.283689][ T253] netlink_unicast+0x449/0x710 [ 9660.283689][ T253] netlink_sendmsg+0x723/0xbe0 [ 9660.283689][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9660.283689][ T253] ___sys_sendmsg+0xee/0x170 [ 9660.283689][ T253] __sys_sendmsg+0xcd/0x170 [ 9660.283689][ T253] do_syscall_64+0xc6/0x1e0 [ 9660.283689][ T253] [ 9660.285904][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9660.285904][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9660.285904][ T253] ipv6_find_idev+0x102/0x170 [ 9660.285904][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9660.285904][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9660.285904][ T253] netlink_rcv_skb+0x130/0x360 [ 9660.285904][ T253] netlink_unicast+0x449/0x710 [ 9660.285904][ T253] netlink_sendmsg+0x723/0xbe0 [ 9660.285904][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9660.285904][ T253] ___sys_sendmsg+0xee/0x170 [ 9660.285904][ T253] __sys_sendmsg+0xcd/0x170 [ 9660.285904][ T253] do_syscall_64+0xc6/0x1e0 [ 9660.285904][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9660.285904][ T253] [ 9660.287639][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9660.287639][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9660.287639][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9660.287639][ T253] ipv6_find_idev+0x102/0x170 [ 9660.287639][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9660.287639][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9660.287639][ T253] netlink_rcv_skb+0x130/0x360 [ 9660.287639][ T253] netlink_unicast+0x449/0x710 [ 9660.287639][ T253] netlink_sendmsg+0x723/0xbe0 [ 9660.287639][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9660.287639][ T253] ___sys_sendmsg+0xee/0x170 [ 9660.287639][ T253] __sys_sendmsg+0xcd/0x170 [ 9660.287639][ T253] do_syscall_64+0xc6/0x1e0 [ 9660.287639][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9660.287639][ T253] [ 9670.530324][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9670.530795][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9670.530795][ T253] dst_init+0x84/0x4a0 [ 9670.530795][ T253] dst_alloc+0x97/0x150 [ 9670.530795][ T253] ip6_dst_alloc+0x23/0x90 [ 9670.530795][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9670.530795][ T253] ip6_pol_route+0x56f/0x840 [ 9670.530795][ T253] fib6_rule_lookup+0x334/0x630 [ 9670.530795][ T253] ip6_route_output_flags+0x259/0x480 [ 9670.530795][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9670.530795][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9670.530795][ T253] netlink_rcv_skb+0x130/0x360 [ 9670.530795][ T253] netlink_unicast+0x449/0x710 [ 9670.530795][ T253] netlink_sendmsg+0x723/0xbe0 [ 9670.530795][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9670.530795][ T253] ___sys_sendmsg+0xee/0x170 [ 9670.530795][ T253] __sys_sendmsg+0xcd/0x170 [ 9670.530795][ T253] do_syscall_64+0xc6/0x1e0 [ 9670.530795][ T253] [ 9670.532997][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9670.532997][ T253] netdev_get_by_index+0x5e/0x80 [ 9670.532997][ T253] fib6_nh_init+0x3d8/0x1580 [ 9670.532997][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9670.532997][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9670.532997][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9670.532997][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9670.532997][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9670.532997][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9670.532997][ T253] addrconf_dad_begin+0x310/0x670 [ 9670.532997][ T253] addrconf_dad_work+0x10b/0xab0 [ 9670.532997][ T253] process_one_work+0x84d/0x18a0 [ 9670.532997][ T253] worker_thread+0x587/0xd30 [ 9670.532997][ T253] kthread+0x28a/0x350 [ 9670.532997][ T253] ret_from_fork+0x31/0x70 [ 9670.532997][ T253] ret_from_fork_asm+0x1a/0x30 [ 9670.532997][ T253] [ 9670.535159][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9670.535159][ T253] netdev_get_by_index+0x5e/0x80 [ 9670.535159][ T253] fib6_nh_init+0x3d8/0x1580 [ 9670.535159][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9670.535159][ T253] ip6_route_add+0x1c/0x140 [ 9670.535159][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9670.535159][ T253] inet6_addr_add+0x4f8/0xa40 [ 9670.535159][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9670.535159][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9670.535159][ T253] netlink_rcv_skb+0x130/0x360 [ 9670.535159][ T253] netlink_unicast+0x449/0x710 [ 9670.535159][ T253] netlink_sendmsg+0x723/0xbe0 [ 9670.535159][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9670.535159][ T253] ___sys_sendmsg+0xee/0x170 [ 9670.535159][ T253] __sys_sendmsg+0xcd/0x170 [ 9670.535159][ T253] do_syscall_64+0xc6/0x1e0 [ 9670.535159][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9670.535159][ T253] [ 9670.537408][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9670.537408][ T253] netdev_get_by_index+0x5e/0x80 [ 9670.537408][ T253] fib6_nh_init+0x3d8/0x1580 [ 9670.537408][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9670.537408][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9670.537408][ T253] ipv6_add_addr+0x411/0x2000 [ 9670.537408][ T253] inet6_addr_add+0x30e/0xa40 [ 9670.537408][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9670.537408][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9670.537408][ T253] netlink_rcv_skb+0x130/0x360 [ 9670.537408][ T253] netlink_unicast+0x449/0x710 [ 9670.537408][ T253] netlink_sendmsg+0x723/0xbe0 [ 9670.537408][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9670.537408][ T253] ___sys_sendmsg+0xee/0x170 [ 9670.537408][ T253] __sys_sendmsg+0xcd/0x170 [ 9670.537408][ T253] do_syscall_64+0xc6/0x1e0 [ 9670.537408][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9670.537408][ T253] [ 9670.539648][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9670.539648][ T253] netdev_get_by_index+0x5e/0x80 [ 9670.539648][ T253] fib6_nh_init+0x3d8/0x1580 [ 9670.539648][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9670.539648][ T253] ip6_route_add+0x1c/0x140 [ 9670.539648][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9670.539648][ T253] addrconf_add_dev+0xe2/0x170 [ 9670.539648][ T253] inet6_addr_add+0x12f/0xa40 [ 9670.539648][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9670.539648][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9670.539648][ T253] netlink_rcv_skb+0x130/0x360 [ 9670.539648][ T253] netlink_unicast+0x449/0x710 [ 9670.539648][ T253] netlink_sendmsg+0x723/0xbe0 [ 9670.539648][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9670.539648][ T253] ___sys_sendmsg+0xee/0x170 [ 9670.539648][ T253] __sys_sendmsg+0xcd/0x170 [ 9670.539648][ T253] do_syscall_64+0xc6/0x1e0 [ 9670.539648][ T253] [ 9670.541873][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9670.541873][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9670.541873][ T253] ipv6_find_idev+0x102/0x170 [ 9670.541873][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9670.541873][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9670.541873][ T253] netlink_rcv_skb+0x130/0x360 [ 9670.541873][ T253] netlink_unicast+0x449/0x710 [ 9670.541873][ T253] netlink_sendmsg+0x723/0xbe0 [ 9670.541873][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9670.541873][ T253] ___sys_sendmsg+0xee/0x170 [ 9670.541873][ T253] __sys_sendmsg+0xcd/0x170 [ 9670.541873][ T253] do_syscall_64+0xc6/0x1e0 [ 9670.541873][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9670.541873][ T253] [ 9670.543598][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9670.543598][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9670.543598][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9670.543598][ T253] ipv6_find_idev+0x102/0x170 [ 9670.543598][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9670.543598][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9670.543598][ T253] netlink_rcv_skb+0x130/0x360 [ 9670.543598][ T253] netlink_unicast+0x449/0x710 [ 9670.543598][ T253] netlink_sendmsg+0x723/0xbe0 [ 9670.543598][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9670.543598][ T253] ___sys_sendmsg+0xee/0x170 [ 9670.543598][ T253] __sys_sendmsg+0xcd/0x170 [ 9670.543598][ T253] do_syscall_64+0xc6/0x1e0 [ 9670.543598][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9670.543598][ T253] [ 9680.786232][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9680.786716][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9680.786716][ T253] dst_init+0x84/0x4a0 [ 9680.786716][ T253] dst_alloc+0x97/0x150 [ 9680.786716][ T253] ip6_dst_alloc+0x23/0x90 [ 9680.786716][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9680.786716][ T253] ip6_pol_route+0x56f/0x840 [ 9680.786716][ T253] fib6_rule_lookup+0x334/0x630 [ 9680.786716][ T253] ip6_route_output_flags+0x259/0x480 [ 9680.786716][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9680.786716][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9680.786716][ T253] netlink_rcv_skb+0x130/0x360 [ 9680.786716][ T253] netlink_unicast+0x449/0x710 [ 9680.786716][ T253] netlink_sendmsg+0x723/0xbe0 [ 9680.786716][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9680.786716][ T253] ___sys_sendmsg+0xee/0x170 [ 9680.786716][ T253] __sys_sendmsg+0xcd/0x170 [ 9680.786716][ T253] do_syscall_64+0xc6/0x1e0 [ 9680.786716][ T253] [ 9680.788920][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9680.788920][ T253] netdev_get_by_index+0x5e/0x80 [ 9680.788920][ T253] fib6_nh_init+0x3d8/0x1580 [ 9680.788920][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9680.788920][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9680.788920][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9680.788920][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9680.788920][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9680.788920][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9680.788920][ T253] addrconf_dad_begin+0x310/0x670 [ 9680.788920][ T253] addrconf_dad_work+0x10b/0xab0 [ 9680.788920][ T253] process_one_work+0x84d/0x18a0 [ 9680.788920][ T253] worker_thread+0x587/0xd30 [ 9680.788920][ T253] kthread+0x28a/0x350 [ 9680.788920][ T253] ret_from_fork+0x31/0x70 [ 9680.788920][ T253] ret_from_fork_asm+0x1a/0x30 [ 9680.788920][ T253] [ 9680.791073][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9680.791073][ T253] netdev_get_by_index+0x5e/0x80 [ 9680.791073][ T253] fib6_nh_init+0x3d8/0x1580 [ 9680.791073][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9680.791073][ T253] ip6_route_add+0x1c/0x140 [ 9680.791073][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9680.791073][ T253] inet6_addr_add+0x4f8/0xa40 [ 9680.791073][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9680.791073][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9680.791073][ T253] netlink_rcv_skb+0x130/0x360 [ 9680.791073][ T253] netlink_unicast+0x449/0x710 [ 9680.791073][ T253] netlink_sendmsg+0x723/0xbe0 [ 9680.791073][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9680.791073][ T253] ___sys_sendmsg+0xee/0x170 [ 9680.791073][ T253] __sys_sendmsg+0xcd/0x170 [ 9680.791073][ T253] do_syscall_64+0xc6/0x1e0 [ 9680.791073][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9680.791073][ T253] [ 9680.793318][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9680.793318][ T253] netdev_get_by_index+0x5e/0x80 [ 9680.793318][ T253] fib6_nh_init+0x3d8/0x1580 [ 9680.793318][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9680.793318][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9680.793318][ T253] ipv6_add_addr+0x411/0x2000 [ 9680.793318][ T253] inet6_addr_add+0x30e/0xa40 [ 9680.793318][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9680.793318][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9680.793318][ T253] netlink_rcv_skb+0x130/0x360 [ 9680.793318][ T253] netlink_unicast+0x449/0x710 [ 9680.793318][ T253] netlink_sendmsg+0x723/0xbe0 [ 9680.793318][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9680.793318][ T253] ___sys_sendmsg+0xee/0x170 [ 9680.793318][ T253] __sys_sendmsg+0xcd/0x170 [ 9680.793318][ T253] do_syscall_64+0xc6/0x1e0 [ 9680.793318][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9680.793318][ T253] [ 9680.795578][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9680.795578][ T253] netdev_get_by_index+0x5e/0x80 [ 9680.795578][ T253] fib6_nh_init+0x3d8/0x1580 [ 9680.795578][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9680.795578][ T253] ip6_route_add+0x1c/0x140 [ 9680.795578][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9680.795578][ T253] addrconf_add_dev+0xe2/0x170 [ 9680.795578][ T253] inet6_addr_add+0x12f/0xa40 [ 9680.795578][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9680.795578][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9680.795578][ T253] netlink_rcv_skb+0x130/0x360 [ 9680.795578][ T253] netlink_unicast+0x449/0x710 [ 9680.795578][ T253] netlink_sendmsg+0x723/0xbe0 [ 9680.795578][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9680.795578][ T253] ___sys_sendmsg+0xee/0x170 [ 9680.795578][ T253] __sys_sendmsg+0xcd/0x170 [ 9680.795578][ T253] do_syscall_64+0xc6/0x1e0 [ 9680.795578][ T253] [ 9680.797795][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9680.797795][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9680.797795][ T253] ipv6_find_idev+0x102/0x170 [ 9680.797795][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9680.797795][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9680.797795][ T253] netlink_rcv_skb+0x130/0x360 [ 9680.797795][ T253] netlink_unicast+0x449/0x710 [ 9680.797795][ T253] netlink_sendmsg+0x723/0xbe0 [ 9680.797795][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9680.797795][ T253] ___sys_sendmsg+0xee/0x170 [ 9680.797795][ T253] __sys_sendmsg+0xcd/0x170 [ 9680.797795][ T253] do_syscall_64+0xc6/0x1e0 [ 9680.797795][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9680.797795][ T253] [ 9680.799527][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9680.799527][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9680.799527][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9680.799527][ T253] ipv6_find_idev+0x102/0x170 [ 9680.799527][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9680.799527][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9680.799527][ T253] netlink_rcv_skb+0x130/0x360 [ 9680.799527][ T253] netlink_unicast+0x449/0x710 [ 9680.799527][ T253] netlink_sendmsg+0x723/0xbe0 [ 9680.799527][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9680.799527][ T253] ___sys_sendmsg+0xee/0x170 [ 9680.799527][ T253] __sys_sendmsg+0xcd/0x170 [ 9680.799527][ T253] do_syscall_64+0xc6/0x1e0 [ 9680.799527][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9680.799527][ T253] [ 9691.042295][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9691.042765][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9691.042765][ T253] dst_init+0x84/0x4a0 [ 9691.042765][ T253] dst_alloc+0x97/0x150 [ 9691.042765][ T253] ip6_dst_alloc+0x23/0x90 [ 9691.042765][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9691.042765][ T253] ip6_pol_route+0x56f/0x840 [ 9691.042765][ T253] fib6_rule_lookup+0x334/0x630 [ 9691.042765][ T253] ip6_route_output_flags+0x259/0x480 [ 9691.042765][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9691.042765][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9691.042765][ T253] netlink_rcv_skb+0x130/0x360 [ 9691.042765][ T253] netlink_unicast+0x449/0x710 [ 9691.042765][ T253] netlink_sendmsg+0x723/0xbe0 [ 9691.042765][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9691.042765][ T253] ___sys_sendmsg+0xee/0x170 [ 9691.042765][ T253] __sys_sendmsg+0xcd/0x170 [ 9691.042765][ T253] do_syscall_64+0xc6/0x1e0 [ 9691.042765][ T253] [ 9691.044971][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9691.044971][ T253] netdev_get_by_index+0x5e/0x80 [ 9691.044971][ T253] fib6_nh_init+0x3d8/0x1580 [ 9691.044971][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9691.044971][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9691.044971][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9691.044971][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9691.044971][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9691.044971][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9691.044971][ T253] addrconf_dad_begin+0x310/0x670 [ 9691.044971][ T253] addrconf_dad_work+0x10b/0xab0 [ 9691.044971][ T253] process_one_work+0x84d/0x18a0 [ 9691.044971][ T253] worker_thread+0x587/0xd30 [ 9691.044971][ T253] kthread+0x28a/0x350 [ 9691.044971][ T253] ret_from_fork+0x31/0x70 [ 9691.044971][ T253] ret_from_fork_asm+0x1a/0x30 [ 9691.044971][ T253] [ 9691.047137][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9691.047137][ T253] netdev_get_by_index+0x5e/0x80 [ 9691.047137][ T253] fib6_nh_init+0x3d8/0x1580 [ 9691.047137][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9691.047137][ T253] ip6_route_add+0x1c/0x140 [ 9691.047137][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9691.047137][ T253] inet6_addr_add+0x4f8/0xa40 [ 9691.047137][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9691.047137][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9691.047137][ T253] netlink_rcv_skb+0x130/0x360 [ 9691.047137][ T253] netlink_unicast+0x449/0x710 [ 9691.047137][ T253] netlink_sendmsg+0x723/0xbe0 [ 9691.047137][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9691.047137][ T253] ___sys_sendmsg+0xee/0x170 [ 9691.047137][ T253] __sys_sendmsg+0xcd/0x170 [ 9691.047137][ T253] do_syscall_64+0xc6/0x1e0 [ 9691.047137][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9691.047137][ T253] [ 9691.049386][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9691.049386][ T253] netdev_get_by_index+0x5e/0x80 [ 9691.049386][ T253] fib6_nh_init+0x3d8/0x1580 [ 9691.049386][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9691.049386][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9691.049386][ T253] ipv6_add_addr+0x411/0x2000 [ 9691.049386][ T253] inet6_addr_add+0x30e/0xa40 [ 9691.049386][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9691.049386][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9691.049386][ T253] netlink_rcv_skb+0x130/0x360 [ 9691.049386][ T253] netlink_unicast+0x449/0x710 [ 9691.049386][ T253] netlink_sendmsg+0x723/0xbe0 [ 9691.049386][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9691.049386][ T253] ___sys_sendmsg+0xee/0x170 [ 9691.049386][ T253] __sys_sendmsg+0xcd/0x170 [ 9691.049386][ T253] do_syscall_64+0xc6/0x1e0 [ 9691.049386][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9691.049386][ T253] [ 9691.051621][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9691.051621][ T253] netdev_get_by_index+0x5e/0x80 [ 9691.051621][ T253] fib6_nh_init+0x3d8/0x1580 [ 9691.051621][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9691.051621][ T253] ip6_route_add+0x1c/0x140 [ 9691.051621][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9691.051621][ T253] addrconf_add_dev+0xe2/0x170 [ 9691.051621][ T253] inet6_addr_add+0x12f/0xa40 [ 9691.051621][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9691.051621][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9691.051621][ T253] netlink_rcv_skb+0x130/0x360 [ 9691.051621][ T253] netlink_unicast+0x449/0x710 [ 9691.051621][ T253] netlink_sendmsg+0x723/0xbe0 [ 9691.051621][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9691.051621][ T253] ___sys_sendmsg+0xee/0x170 [ 9691.051621][ T253] __sys_sendmsg+0xcd/0x170 [ 9691.051621][ T253] do_syscall_64+0xc6/0x1e0 [ 9691.051621][ T253] [ 9691.053828][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9691.053828][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9691.053828][ T253] ipv6_find_idev+0x102/0x170 [ 9691.053828][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9691.053828][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9691.053828][ T253] netlink_rcv_skb+0x130/0x360 [ 9691.053828][ T253] netlink_unicast+0x449/0x710 [ 9691.053828][ T253] netlink_sendmsg+0x723/0xbe0 [ 9691.053828][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9691.053828][ T253] ___sys_sendmsg+0xee/0x170 [ 9691.053828][ T253] __sys_sendmsg+0xcd/0x170 [ 9691.053828][ T253] do_syscall_64+0xc6/0x1e0 [ 9691.053828][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9691.053828][ T253] [ 9691.055561][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9691.055561][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9691.055561][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9691.055561][ T253] ipv6_find_idev+0x102/0x170 [ 9691.055561][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9691.055561][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9691.055561][ T253] netlink_rcv_skb+0x130/0x360 [ 9691.055561][ T253] netlink_unicast+0x449/0x710 [ 9691.055561][ T253] netlink_sendmsg+0x723/0xbe0 [ 9691.055561][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9691.055561][ T253] ___sys_sendmsg+0xee/0x170 [ 9691.055561][ T253] __sys_sendmsg+0xcd/0x170 [ 9691.055561][ T253] do_syscall_64+0xc6/0x1e0 [ 9691.055561][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9691.055561][ T253] [ 9701.298309][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9701.298803][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9701.298803][ T253] dst_init+0x84/0x4a0 [ 9701.298803][ T253] dst_alloc+0x97/0x150 [ 9701.298803][ T253] ip6_dst_alloc+0x23/0x90 [ 9701.298803][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9701.298803][ T253] ip6_pol_route+0x56f/0x840 [ 9701.298803][ T253] fib6_rule_lookup+0x334/0x630 [ 9701.298803][ T253] ip6_route_output_flags+0x259/0x480 [ 9701.298803][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9701.298803][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9701.298803][ T253] netlink_rcv_skb+0x130/0x360 [ 9701.298803][ T253] netlink_unicast+0x449/0x710 [ 9701.298803][ T253] netlink_sendmsg+0x723/0xbe0 [ 9701.298803][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9701.298803][ T253] ___sys_sendmsg+0xee/0x170 [ 9701.298803][ T253] __sys_sendmsg+0xcd/0x170 [ 9701.298803][ T253] do_syscall_64+0xc6/0x1e0 [ 9701.298803][ T253] [ 9701.301010][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9701.301010][ T253] netdev_get_by_index+0x5e/0x80 [ 9701.301010][ T253] fib6_nh_init+0x3d8/0x1580 [ 9701.301010][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9701.301010][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9701.301010][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9701.301010][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9701.301010][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9701.301010][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9701.301010][ T253] addrconf_dad_begin+0x310/0x670 [ 9701.301010][ T253] addrconf_dad_work+0x10b/0xab0 [ 9701.301010][ T253] process_one_work+0x84d/0x18a0 [ 9701.301010][ T253] worker_thread+0x587/0xd30 [ 9701.301010][ T253] kthread+0x28a/0x350 [ 9701.301010][ T253] ret_from_fork+0x31/0x70 [ 9701.301010][ T253] ret_from_fork_asm+0x1a/0x30 [ 9701.301010][ T253] [ 9701.303284][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9701.303284][ T253] netdev_get_by_index+0x5e/0x80 [ 9701.303284][ T253] fib6_nh_init+0x3d8/0x1580 [ 9701.303284][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9701.303284][ T253] ip6_route_add+0x1c/0x140 [ 9701.303284][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9701.303284][ T253] inet6_addr_add+0x4f8/0xa40 [ 9701.303284][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9701.303284][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9701.303284][ T253] netlink_rcv_skb+0x130/0x360 [ 9701.303284][ T253] netlink_unicast+0x449/0x710 [ 9701.303284][ T253] netlink_sendmsg+0x723/0xbe0 [ 9701.303284][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9701.303284][ T253] ___sys_sendmsg+0xee/0x170 [ 9701.303284][ T253] __sys_sendmsg+0xcd/0x170 [ 9701.303284][ T253] do_syscall_64+0xc6/0x1e0 [ 9701.303284][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9701.303284][ T253] [ 9701.305533][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9701.305533][ T253] netdev_get_by_index+0x5e/0x80 [ 9701.305533][ T253] fib6_nh_init+0x3d8/0x1580 [ 9701.305533][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9701.305533][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9701.305533][ T253] ipv6_add_addr+0x411/0x2000 [ 9701.305533][ T253] inet6_addr_add+0x30e/0xa40 [ 9701.305533][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9701.305533][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9701.305533][ T253] netlink_rcv_skb+0x130/0x360 [ 9701.305533][ T253] netlink_unicast+0x449/0x710 [ 9701.305533][ T253] netlink_sendmsg+0x723/0xbe0 [ 9701.305533][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9701.305533][ T253] ___sys_sendmsg+0xee/0x170 [ 9701.305533][ T253] __sys_sendmsg+0xcd/0x170 [ 9701.305533][ T253] do_syscall_64+0xc6/0x1e0 [ 9701.305533][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9701.305533][ T253] [ 9701.307771][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9701.307771][ T253] netdev_get_by_index+0x5e/0x80 [ 9701.307771][ T253] fib6_nh_init+0x3d8/0x1580 [ 9701.307771][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9701.307771][ T253] ip6_route_add+0x1c/0x140 [ 9701.307771][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9701.307771][ T253] addrconf_add_dev+0xe2/0x170 [ 9701.307771][ T253] inet6_addr_add+0x12f/0xa40 [ 9701.307771][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9701.307771][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9701.307771][ T253] netlink_rcv_skb+0x130/0x360 [ 9701.307771][ T253] netlink_unicast+0x449/0x710 [ 9701.307771][ T253] netlink_sendmsg+0x723/0xbe0 [ 9701.307771][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9701.307771][ T253] ___sys_sendmsg+0xee/0x170 [ 9701.307771][ T253] __sys_sendmsg+0xcd/0x170 [ 9701.307771][ T253] do_syscall_64+0xc6/0x1e0 [ 9701.307771][ T253] [ 9701.309969][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9701.309969][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9701.309969][ T253] ipv6_find_idev+0x102/0x170 [ 9701.309969][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9701.309969][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9701.309969][ T253] netlink_rcv_skb+0x130/0x360 [ 9701.309969][ T253] netlink_unicast+0x449/0x710 [ 9701.309969][ T253] netlink_sendmsg+0x723/0xbe0 [ 9701.309969][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9701.309969][ T253] ___sys_sendmsg+0xee/0x170 [ 9701.309969][ T253] __sys_sendmsg+0xcd/0x170 [ 9701.309969][ T253] do_syscall_64+0xc6/0x1e0 [ 9701.309969][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9701.309969][ T253] [ 9701.311693][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9701.311693][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9701.311693][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9701.311693][ T253] ipv6_find_idev+0x102/0x170 [ 9701.311693][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9701.311693][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9701.311693][ T253] netlink_rcv_skb+0x130/0x360 [ 9701.311693][ T253] netlink_unicast+0x449/0x710 [ 9701.311693][ T253] netlink_sendmsg+0x723/0xbe0 [ 9701.311693][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9701.311693][ T253] ___sys_sendmsg+0xee/0x170 [ 9701.311693][ T253] __sys_sendmsg+0xcd/0x170 [ 9701.311693][ T253] do_syscall_64+0xc6/0x1e0 [ 9701.311693][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9701.311693][ T253] [ 9711.554300][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9711.554772][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9711.554772][ T253] dst_init+0x84/0x4a0 [ 9711.554772][ T253] dst_alloc+0x97/0x150 [ 9711.554772][ T253] ip6_dst_alloc+0x23/0x90 [ 9711.554772][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9711.554772][ T253] ip6_pol_route+0x56f/0x840 [ 9711.554772][ T253] fib6_rule_lookup+0x334/0x630 [ 9711.554772][ T253] ip6_route_output_flags+0x259/0x480 [ 9711.554772][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9711.554772][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9711.554772][ T253] netlink_rcv_skb+0x130/0x360 [ 9711.554772][ T253] netlink_unicast+0x449/0x710 [ 9711.554772][ T253] netlink_sendmsg+0x723/0xbe0 [ 9711.554772][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9711.554772][ T253] ___sys_sendmsg+0xee/0x170 [ 9711.554772][ T253] __sys_sendmsg+0xcd/0x170 [ 9711.554772][ T253] do_syscall_64+0xc6/0x1e0 [ 9711.554772][ T253] [ 9711.556970][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9711.556970][ T253] netdev_get_by_index+0x5e/0x80 [ 9711.556970][ T253] fib6_nh_init+0x3d8/0x1580 [ 9711.556970][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9711.556970][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9711.556970][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9711.556970][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9711.556970][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9711.556970][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9711.556970][ T253] addrconf_dad_begin+0x310/0x670 [ 9711.556970][ T253] addrconf_dad_work+0x10b/0xab0 [ 9711.556970][ T253] process_one_work+0x84d/0x18a0 [ 9711.556970][ T253] worker_thread+0x587/0xd30 [ 9711.556970][ T253] kthread+0x28a/0x350 [ 9711.556970][ T253] ret_from_fork+0x31/0x70 [ 9711.556970][ T253] ret_from_fork_asm+0x1a/0x30 [ 9711.556970][ T253] [ 9711.559121][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9711.559121][ T253] netdev_get_by_index+0x5e/0x80 [ 9711.559121][ T253] fib6_nh_init+0x3d8/0x1580 [ 9711.559121][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9711.559121][ T253] ip6_route_add+0x1c/0x140 [ 9711.559121][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9711.559121][ T253] inet6_addr_add+0x4f8/0xa40 [ 9711.559121][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9711.559121][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9711.559121][ T253] netlink_rcv_skb+0x130/0x360 [ 9711.559121][ T253] netlink_unicast+0x449/0x710 [ 9711.559121][ T253] netlink_sendmsg+0x723/0xbe0 [ 9711.559121][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9711.559121][ T253] ___sys_sendmsg+0xee/0x170 [ 9711.559121][ T253] __sys_sendmsg+0xcd/0x170 [ 9711.559121][ T253] do_syscall_64+0xc6/0x1e0 [ 9711.559121][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9711.559121][ T253] [ 9711.561356][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9711.561356][ T253] netdev_get_by_index+0x5e/0x80 [ 9711.561356][ T253] fib6_nh_init+0x3d8/0x1580 [ 9711.561356][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9711.561356][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9711.561356][ T253] ipv6_add_addr+0x411/0x2000 [ 9711.561356][ T253] inet6_addr_add+0x30e/0xa40 [ 9711.561356][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9711.561356][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9711.561356][ T253] netlink_rcv_skb+0x130/0x360 [ 9711.561356][ T253] netlink_unicast+0x449/0x710 [ 9711.561356][ T253] netlink_sendmsg+0x723/0xbe0 [ 9711.561356][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9711.561356][ T253] ___sys_sendmsg+0xee/0x170 [ 9711.561356][ T253] __sys_sendmsg+0xcd/0x170 [ 9711.561356][ T253] do_syscall_64+0xc6/0x1e0 [ 9711.561356][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9711.561356][ T253] [ 9711.563591][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9711.563591][ T253] netdev_get_by_index+0x5e/0x80 [ 9711.563591][ T253] fib6_nh_init+0x3d8/0x1580 [ 9711.563591][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9711.563591][ T253] ip6_route_add+0x1c/0x140 [ 9711.563591][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9711.563591][ T253] addrconf_add_dev+0xe2/0x170 [ 9711.563591][ T253] inet6_addr_add+0x12f/0xa40 [ 9711.563591][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9711.563591][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9711.563591][ T253] netlink_rcv_skb+0x130/0x360 [ 9711.563591][ T253] netlink_unicast+0x449/0x710 [ 9711.563591][ T253] netlink_sendmsg+0x723/0xbe0 [ 9711.563591][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9711.563591][ T253] ___sys_sendmsg+0xee/0x170 [ 9711.563591][ T253] __sys_sendmsg+0xcd/0x170 [ 9711.563591][ T253] do_syscall_64+0xc6/0x1e0 [ 9711.563591][ T253] [ 9711.565802][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9711.565802][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9711.565802][ T253] ipv6_find_idev+0x102/0x170 [ 9711.565802][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9711.565802][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9711.565802][ T253] netlink_rcv_skb+0x130/0x360 [ 9711.565802][ T253] netlink_unicast+0x449/0x710 [ 9711.565802][ T253] netlink_sendmsg+0x723/0xbe0 [ 9711.565802][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9711.565802][ T253] ___sys_sendmsg+0xee/0x170 [ 9711.565802][ T253] __sys_sendmsg+0xcd/0x170 [ 9711.565802][ T253] do_syscall_64+0xc6/0x1e0 [ 9711.565802][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9711.565802][ T253] [ 9711.567519][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9711.567519][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9711.567519][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9711.567519][ T253] ipv6_find_idev+0x102/0x170 [ 9711.567519][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9711.567519][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9711.567519][ T253] netlink_rcv_skb+0x130/0x360 [ 9711.567519][ T253] netlink_unicast+0x449/0x710 [ 9711.567519][ T253] netlink_sendmsg+0x723/0xbe0 [ 9711.567519][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9711.567519][ T253] ___sys_sendmsg+0xee/0x170 [ 9711.567519][ T253] __sys_sendmsg+0xcd/0x170 [ 9711.567519][ T253] do_syscall_64+0xc6/0x1e0 [ 9711.567519][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9711.567519][ T253] [ 9721.602311][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9721.602788][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9721.602788][ T253] dst_init+0x84/0x4a0 [ 9721.602788][ T253] dst_alloc+0x97/0x150 [ 9721.602788][ T253] ip6_dst_alloc+0x23/0x90 [ 9721.602788][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9721.602788][ T253] ip6_pol_route+0x56f/0x840 [ 9721.602788][ T253] fib6_rule_lookup+0x334/0x630 [ 9721.602788][ T253] ip6_route_output_flags+0x259/0x480 [ 9721.602788][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9721.602788][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9721.602788][ T253] netlink_rcv_skb+0x130/0x360 [ 9721.602788][ T253] netlink_unicast+0x449/0x710 [ 9721.602788][ T253] netlink_sendmsg+0x723/0xbe0 [ 9721.602788][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9721.602788][ T253] ___sys_sendmsg+0xee/0x170 [ 9721.602788][ T253] __sys_sendmsg+0xcd/0x170 [ 9721.602788][ T253] do_syscall_64+0xc6/0x1e0 [ 9721.602788][ T253] [ 9721.604990][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9721.604990][ T253] netdev_get_by_index+0x5e/0x80 [ 9721.604990][ T253] fib6_nh_init+0x3d8/0x1580 [ 9721.604990][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9721.604990][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9721.604990][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9721.604990][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9721.604990][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9721.604990][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9721.604990][ T253] addrconf_dad_begin+0x310/0x670 [ 9721.604990][ T253] addrconf_dad_work+0x10b/0xab0 [ 9721.604990][ T253] process_one_work+0x84d/0x18a0 [ 9721.604990][ T253] worker_thread+0x587/0xd30 [ 9721.604990][ T253] kthread+0x28a/0x350 [ 9721.604990][ T253] ret_from_fork+0x31/0x70 [ 9721.604990][ T253] ret_from_fork_asm+0x1a/0x30 [ 9721.604990][ T253] [ 9721.607149][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9721.607149][ T253] netdev_get_by_index+0x5e/0x80 [ 9721.607149][ T253] fib6_nh_init+0x3d8/0x1580 [ 9721.607149][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9721.607149][ T253] ip6_route_add+0x1c/0x140 [ 9721.607149][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9721.607149][ T253] inet6_addr_add+0x4f8/0xa40 [ 9721.607149][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9721.607149][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9721.607149][ T253] netlink_rcv_skb+0x130/0x360 [ 9721.607149][ T253] netlink_unicast+0x449/0x710 [ 9721.607149][ T253] netlink_sendmsg+0x723/0xbe0 [ 9721.607149][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9721.607149][ T253] ___sys_sendmsg+0xee/0x170 [ 9721.607149][ T253] __sys_sendmsg+0xcd/0x170 [ 9721.607149][ T253] do_syscall_64+0xc6/0x1e0 [ 9721.607149][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9721.607149][ T253] [ 9721.609386][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9721.609386][ T253] netdev_get_by_index+0x5e/0x80 [ 9721.609386][ T253] fib6_nh_init+0x3d8/0x1580 [ 9721.609386][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9721.609386][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9721.609386][ T253] ipv6_add_addr+0x411/0x2000 [ 9721.609386][ T253] inet6_addr_add+0x30e/0xa40 [ 9721.609386][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9721.609386][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9721.609386][ T253] netlink_rcv_skb+0x130/0x360 [ 9721.609386][ T253] netlink_unicast+0x449/0x710 [ 9721.609386][ T253] netlink_sendmsg+0x723/0xbe0 [ 9721.609386][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9721.609386][ T253] ___sys_sendmsg+0xee/0x170 [ 9721.609386][ T253] __sys_sendmsg+0xcd/0x170 [ 9721.609386][ T253] do_syscall_64+0xc6/0x1e0 [ 9721.609386][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9721.609386][ T253] [ 9721.611634][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9721.611634][ T253] netdev_get_by_index+0x5e/0x80 [ 9721.611634][ T253] fib6_nh_init+0x3d8/0x1580 [ 9721.611634][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9721.611634][ T253] ip6_route_add+0x1c/0x140 [ 9721.611634][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9721.611634][ T253] addrconf_add_dev+0xe2/0x170 [ 9721.611634][ T253] inet6_addr_add+0x12f/0xa40 [ 9721.611634][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9721.611634][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9721.611634][ T253] netlink_rcv_skb+0x130/0x360 [ 9721.611634][ T253] netlink_unicast+0x449/0x710 [ 9721.611634][ T253] netlink_sendmsg+0x723/0xbe0 [ 9721.611634][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9721.611634][ T253] ___sys_sendmsg+0xee/0x170 [ 9721.611634][ T253] __sys_sendmsg+0xcd/0x170 [ 9721.611634][ T253] do_syscall_64+0xc6/0x1e0 [ 9721.611634][ T253] [ 9721.613828][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9721.613828][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9721.613828][ T253] ipv6_find_idev+0x102/0x170 [ 9721.613828][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9721.613828][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9721.613828][ T253] netlink_rcv_skb+0x130/0x360 [ 9721.613828][ T253] netlink_unicast+0x449/0x710 [ 9721.613828][ T253] netlink_sendmsg+0x723/0xbe0 [ 9721.613828][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9721.613828][ T253] ___sys_sendmsg+0xee/0x170 [ 9721.613828][ T253] __sys_sendmsg+0xcd/0x170 [ 9721.613828][ T253] do_syscall_64+0xc6/0x1e0 [ 9721.613828][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9721.613828][ T253] [ 9721.615564][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9721.615564][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9721.615564][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9721.615564][ T253] ipv6_find_idev+0x102/0x170 [ 9721.615564][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9721.615564][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9721.615564][ T253] netlink_rcv_skb+0x130/0x360 [ 9721.615564][ T253] netlink_unicast+0x449/0x710 [ 9721.615564][ T253] netlink_sendmsg+0x723/0xbe0 [ 9721.615564][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9721.615564][ T253] ___sys_sendmsg+0xee/0x170 [ 9721.615564][ T253] __sys_sendmsg+0xcd/0x170 [ 9721.615564][ T253] do_syscall_64+0xc6/0x1e0 [ 9721.615564][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9721.615564][ T253] [ 9731.858305][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9731.858783][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9731.858783][ T253] dst_init+0x84/0x4a0 [ 9731.858783][ T253] dst_alloc+0x97/0x150 [ 9731.858783][ T253] ip6_dst_alloc+0x23/0x90 [ 9731.858783][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9731.858783][ T253] ip6_pol_route+0x56f/0x840 [ 9731.858783][ T253] fib6_rule_lookup+0x334/0x630 [ 9731.858783][ T253] ip6_route_output_flags+0x259/0x480 [ 9731.858783][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9731.858783][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9731.858783][ T253] netlink_rcv_skb+0x130/0x360 [ 9731.858783][ T253] netlink_unicast+0x449/0x710 [ 9731.858783][ T253] netlink_sendmsg+0x723/0xbe0 [ 9731.858783][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9731.858783][ T253] ___sys_sendmsg+0xee/0x170 [ 9731.858783][ T253] __sys_sendmsg+0xcd/0x170 [ 9731.858783][ T253] do_syscall_64+0xc6/0x1e0 [ 9731.858783][ T253] [ 9731.860975][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9731.860975][ T253] netdev_get_by_index+0x5e/0x80 [ 9731.860975][ T253] fib6_nh_init+0x3d8/0x1580 [ 9731.860975][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9731.860975][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9731.860975][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9731.860975][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9731.860975][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9731.860975][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9731.860975][ T253] addrconf_dad_begin+0x310/0x670 [ 9731.860975][ T253] addrconf_dad_work+0x10b/0xab0 [ 9731.860975][ T253] process_one_work+0x84d/0x18a0 [ 9731.860975][ T253] worker_thread+0x587/0xd30 [ 9731.860975][ T253] kthread+0x28a/0x350 [ 9731.860975][ T253] ret_from_fork+0x31/0x70 [ 9731.860975][ T253] ret_from_fork_asm+0x1a/0x30 [ 9731.860975][ T253] [ 9731.863120][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9731.863120][ T253] netdev_get_by_index+0x5e/0x80 [ 9731.863120][ T253] fib6_nh_init+0x3d8/0x1580 [ 9731.863120][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9731.863120][ T253] ip6_route_add+0x1c/0x140 [ 9731.863120][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9731.863120][ T253] inet6_addr_add+0x4f8/0xa40 [ 9731.863120][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9731.863120][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9731.863120][ T253] netlink_rcv_skb+0x130/0x360 [ 9731.863120][ T253] netlink_unicast+0x449/0x710 [ 9731.863120][ T253] netlink_sendmsg+0x723/0xbe0 [ 9731.863120][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9731.863120][ T253] ___sys_sendmsg+0xee/0x170 [ 9731.863120][ T253] __sys_sendmsg+0xcd/0x170 [ 9731.863120][ T253] do_syscall_64+0xc6/0x1e0 [ 9731.863120][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9731.863120][ T253] [ 9731.865380][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9731.865380][ T253] netdev_get_by_index+0x5e/0x80 [ 9731.865380][ T253] fib6_nh_init+0x3d8/0x1580 [ 9731.865380][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9731.865380][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9731.865380][ T253] ipv6_add_addr+0x411/0x2000 [ 9731.865380][ T253] inet6_addr_add+0x30e/0xa40 [ 9731.865380][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9731.865380][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9731.865380][ T253] netlink_rcv_skb+0x130/0x360 [ 9731.865380][ T253] netlink_unicast+0x449/0x710 [ 9731.865380][ T253] netlink_sendmsg+0x723/0xbe0 [ 9731.865380][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9731.865380][ T253] ___sys_sendmsg+0xee/0x170 [ 9731.865380][ T253] __sys_sendmsg+0xcd/0x170 [ 9731.865380][ T253] do_syscall_64+0xc6/0x1e0 [ 9731.865380][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9731.865380][ T253] [ 9731.867629][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9731.867629][ T253] netdev_get_by_index+0x5e/0x80 [ 9731.867629][ T253] fib6_nh_init+0x3d8/0x1580 [ 9731.867629][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9731.867629][ T253] ip6_route_add+0x1c/0x140 [ 9731.867629][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9731.867629][ T253] addrconf_add_dev+0xe2/0x170 [ 9731.867629][ T253] inet6_addr_add+0x12f/0xa40 [ 9731.867629][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9731.867629][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9731.867629][ T253] netlink_rcv_skb+0x130/0x360 [ 9731.867629][ T253] netlink_unicast+0x449/0x710 [ 9731.867629][ T253] netlink_sendmsg+0x723/0xbe0 [ 9731.867629][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9731.867629][ T253] ___sys_sendmsg+0xee/0x170 [ 9731.867629][ T253] __sys_sendmsg+0xcd/0x170 [ 9731.867629][ T253] do_syscall_64+0xc6/0x1e0 [ 9731.867629][ T253] [ 9731.869859][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9731.869859][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9731.869859][ T253] ipv6_find_idev+0x102/0x170 [ 9731.869859][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9731.869859][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9731.869859][ T253] netlink_rcv_skb+0x130/0x360 [ 9731.869859][ T253] netlink_unicast+0x449/0x710 [ 9731.869859][ T253] netlink_sendmsg+0x723/0xbe0 [ 9731.869859][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9731.869859][ T253] ___sys_sendmsg+0xee/0x170 [ 9731.869859][ T253] __sys_sendmsg+0xcd/0x170 [ 9731.869859][ T253] do_syscall_64+0xc6/0x1e0 [ 9731.869859][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9731.869859][ T253] [ 9731.871589][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9731.871589][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9731.871589][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9731.871589][ T253] ipv6_find_idev+0x102/0x170 [ 9731.871589][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9731.871589][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9731.871589][ T253] netlink_rcv_skb+0x130/0x360 [ 9731.871589][ T253] netlink_unicast+0x449/0x710 [ 9731.871589][ T253] netlink_sendmsg+0x723/0xbe0 [ 9731.871589][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9731.871589][ T253] ___sys_sendmsg+0xee/0x170 [ 9731.871589][ T253] __sys_sendmsg+0xcd/0x170 [ 9731.871589][ T253] do_syscall_64+0xc6/0x1e0 [ 9731.871589][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9731.871589][ T253] [ 9742.114231][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9742.114704][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9742.114704][ T253] dst_init+0x84/0x4a0 [ 9742.114704][ T253] dst_alloc+0x97/0x150 [ 9742.114704][ T253] ip6_dst_alloc+0x23/0x90 [ 9742.114704][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9742.114704][ T253] ip6_pol_route+0x56f/0x840 [ 9742.114704][ T253] fib6_rule_lookup+0x334/0x630 [ 9742.114704][ T253] ip6_route_output_flags+0x259/0x480 [ 9742.114704][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9742.114704][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9742.114704][ T253] netlink_rcv_skb+0x130/0x360 [ 9742.114704][ T253] netlink_unicast+0x449/0x710 [ 9742.114704][ T253] netlink_sendmsg+0x723/0xbe0 [ 9742.114704][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9742.114704][ T253] ___sys_sendmsg+0xee/0x170 [ 9742.114704][ T253] __sys_sendmsg+0xcd/0x170 [ 9742.114704][ T253] do_syscall_64+0xc6/0x1e0 [ 9742.114704][ T253] [ 9742.116922][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9742.116922][ T253] netdev_get_by_index+0x5e/0x80 [ 9742.116922][ T253] fib6_nh_init+0x3d8/0x1580 [ 9742.116922][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9742.116922][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9742.116922][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9742.116922][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9742.116922][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9742.116922][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9742.116922][ T253] addrconf_dad_begin+0x310/0x670 [ 9742.116922][ T253] addrconf_dad_work+0x10b/0xab0 [ 9742.116922][ T253] process_one_work+0x84d/0x18a0 [ 9742.116922][ T253] worker_thread+0x587/0xd30 [ 9742.116922][ T253] kthread+0x28a/0x350 [ 9742.116922][ T253] ret_from_fork+0x31/0x70 [ 9742.116922][ T253] ret_from_fork_asm+0x1a/0x30 [ 9742.116922][ T253] [ 9742.119089][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9742.119089][ T253] netdev_get_by_index+0x5e/0x80 [ 9742.119089][ T253] fib6_nh_init+0x3d8/0x1580 [ 9742.119089][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9742.119089][ T253] ip6_route_add+0x1c/0x140 [ 9742.119089][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9742.119089][ T253] inet6_addr_add+0x4f8/0xa40 [ 9742.119089][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9742.119089][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9742.119089][ T253] netlink_rcv_skb+0x130/0x360 [ 9742.119089][ T253] netlink_unicast+0x449/0x710 [ 9742.119089][ T253] netlink_sendmsg+0x723/0xbe0 [ 9742.119089][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9742.119089][ T253] ___sys_sendmsg+0xee/0x170 [ 9742.119089][ T253] __sys_sendmsg+0xcd/0x170 [ 9742.119089][ T253] do_syscall_64+0xc6/0x1e0 [ 9742.119089][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9742.119089][ T253] [ 9742.121337][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9742.121337][ T253] netdev_get_by_index+0x5e/0x80 [ 9742.121337][ T253] fib6_nh_init+0x3d8/0x1580 [ 9742.121337][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9742.121337][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9742.121337][ T253] ipv6_add_addr+0x411/0x2000 [ 9742.121337][ T253] inet6_addr_add+0x30e/0xa40 [ 9742.121337][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9742.121337][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9742.121337][ T253] netlink_rcv_skb+0x130/0x360 [ 9742.121337][ T253] netlink_unicast+0x449/0x710 [ 9742.121337][ T253] netlink_sendmsg+0x723/0xbe0 [ 9742.121337][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9742.121337][ T253] ___sys_sendmsg+0xee/0x170 [ 9742.121337][ T253] __sys_sendmsg+0xcd/0x170 [ 9742.121337][ T253] do_syscall_64+0xc6/0x1e0 [ 9742.121337][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9742.121337][ T253] [ 9742.123582][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9742.123582][ T253] netdev_get_by_index+0x5e/0x80 [ 9742.123582][ T253] fib6_nh_init+0x3d8/0x1580 [ 9742.123582][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9742.123582][ T253] ip6_route_add+0x1c/0x140 [ 9742.123582][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9742.123582][ T253] addrconf_add_dev+0xe2/0x170 [ 9742.123582][ T253] inet6_addr_add+0x12f/0xa40 [ 9742.123582][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9742.123582][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9742.123582][ T253] netlink_rcv_skb+0x130/0x360 [ 9742.123582][ T253] netlink_unicast+0x449/0x710 [ 9742.123582][ T253] netlink_sendmsg+0x723/0xbe0 [ 9742.123582][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9742.123582][ T253] ___sys_sendmsg+0xee/0x170 [ 9742.123582][ T253] __sys_sendmsg+0xcd/0x170 [ 9742.123582][ T253] do_syscall_64+0xc6/0x1e0 [ 9742.123582][ T253] [ 9742.125806][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9742.125806][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9742.125806][ T253] ipv6_find_idev+0x102/0x170 [ 9742.125806][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9742.125806][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9742.125806][ T253] netlink_rcv_skb+0x130/0x360 [ 9742.125806][ T253] netlink_unicast+0x449/0x710 [ 9742.125806][ T253] netlink_sendmsg+0x723/0xbe0 [ 9742.125806][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9742.125806][ T253] ___sys_sendmsg+0xee/0x170 [ 9742.125806][ T253] __sys_sendmsg+0xcd/0x170 [ 9742.125806][ T253] do_syscall_64+0xc6/0x1e0 [ 9742.125806][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9742.125806][ T253] [ 9742.127530][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9742.127530][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9742.127530][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9742.127530][ T253] ipv6_find_idev+0x102/0x170 [ 9742.127530][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9742.127530][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9742.127530][ T253] netlink_rcv_skb+0x130/0x360 [ 9742.127530][ T253] netlink_unicast+0x449/0x710 [ 9742.127530][ T253] netlink_sendmsg+0x723/0xbe0 [ 9742.127530][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9742.127530][ T253] ___sys_sendmsg+0xee/0x170 [ 9742.127530][ T253] __sys_sendmsg+0xcd/0x170 [ 9742.127530][ T253] do_syscall_64+0xc6/0x1e0 [ 9742.127530][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9742.127530][ T253] [ 9752.370244][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9752.370743][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9752.370743][ T253] dst_init+0x84/0x4a0 [ 9752.370743][ T253] dst_alloc+0x97/0x150 [ 9752.370743][ T253] ip6_dst_alloc+0x23/0x90 [ 9752.370743][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9752.370743][ T253] ip6_pol_route+0x56f/0x840 [ 9752.370743][ T253] fib6_rule_lookup+0x334/0x630 [ 9752.370743][ T253] ip6_route_output_flags+0x259/0x480 [ 9752.370743][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9752.370743][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9752.370743][ T253] netlink_rcv_skb+0x130/0x360 [ 9752.370743][ T253] netlink_unicast+0x449/0x710 [ 9752.370743][ T253] netlink_sendmsg+0x723/0xbe0 [ 9752.370743][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9752.370743][ T253] ___sys_sendmsg+0xee/0x170 [ 9752.370743][ T253] __sys_sendmsg+0xcd/0x170 [ 9752.370743][ T253] do_syscall_64+0xc6/0x1e0 [ 9752.370743][ T253] [ 9752.372932][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9752.372932][ T253] netdev_get_by_index+0x5e/0x80 [ 9752.372932][ T253] fib6_nh_init+0x3d8/0x1580 [ 9752.372932][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9752.372932][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9752.372932][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9752.372932][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9752.372932][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9752.372932][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9752.372932][ T253] addrconf_dad_begin+0x310/0x670 [ 9752.372932][ T253] addrconf_dad_work+0x10b/0xab0 [ 9752.372932][ T253] process_one_work+0x84d/0x18a0 [ 9752.372932][ T253] worker_thread+0x587/0xd30 [ 9752.372932][ T253] kthread+0x28a/0x350 [ 9752.372932][ T253] ret_from_fork+0x31/0x70 [ 9752.372932][ T253] ret_from_fork_asm+0x1a/0x30 [ 9752.372932][ T253] [ 9752.375085][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9752.375085][ T253] netdev_get_by_index+0x5e/0x80 [ 9752.375085][ T253] fib6_nh_init+0x3d8/0x1580 [ 9752.375085][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9752.375085][ T253] ip6_route_add+0x1c/0x140 [ 9752.375085][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9752.375085][ T253] inet6_addr_add+0x4f8/0xa40 [ 9752.375085][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9752.375085][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9752.375085][ T253] netlink_rcv_skb+0x130/0x360 [ 9752.375085][ T253] netlink_unicast+0x449/0x710 [ 9752.375085][ T253] netlink_sendmsg+0x723/0xbe0 [ 9752.375085][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9752.375085][ T253] ___sys_sendmsg+0xee/0x170 [ 9752.375085][ T253] __sys_sendmsg+0xcd/0x170 [ 9752.375085][ T253] do_syscall_64+0xc6/0x1e0 [ 9752.375085][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9752.375085][ T253] [ 9752.377317][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9752.377317][ T253] netdev_get_by_index+0x5e/0x80 [ 9752.377317][ T253] fib6_nh_init+0x3d8/0x1580 [ 9752.377317][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9752.377317][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9752.377317][ T253] ipv6_add_addr+0x411/0x2000 [ 9752.377317][ T253] inet6_addr_add+0x30e/0xa40 [ 9752.377317][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9752.377317][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9752.377317][ T253] netlink_rcv_skb+0x130/0x360 [ 9752.377317][ T253] netlink_unicast+0x449/0x710 [ 9752.377317][ T253] netlink_sendmsg+0x723/0xbe0 [ 9752.377317][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9752.377317][ T253] ___sys_sendmsg+0xee/0x170 [ 9752.377317][ T253] __sys_sendmsg+0xcd/0x170 [ 9752.377317][ T253] do_syscall_64+0xc6/0x1e0 [ 9752.377317][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9752.377317][ T253] [ 9752.379567][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9752.379567][ T253] netdev_get_by_index+0x5e/0x80 [ 9752.379567][ T253] fib6_nh_init+0x3d8/0x1580 [ 9752.379567][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9752.379567][ T253] ip6_route_add+0x1c/0x140 [ 9752.379567][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9752.379567][ T253] addrconf_add_dev+0xe2/0x170 [ 9752.379567][ T253] inet6_addr_add+0x12f/0xa40 [ 9752.379567][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9752.379567][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9752.379567][ T253] netlink_rcv_skb+0x130/0x360 [ 9752.379567][ T253] netlink_unicast+0x449/0x710 [ 9752.379567][ T253] netlink_sendmsg+0x723/0xbe0 [ 9752.379567][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9752.379567][ T253] ___sys_sendmsg+0xee/0x170 [ 9752.379567][ T253] __sys_sendmsg+0xcd/0x170 [ 9752.379567][ T253] do_syscall_64+0xc6/0x1e0 [ 9752.379567][ T253] [ 9752.381761][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9752.381761][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9752.381761][ T253] ipv6_find_idev+0x102/0x170 [ 9752.381761][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9752.381761][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9752.381761][ T253] netlink_rcv_skb+0x130/0x360 [ 9752.381761][ T253] netlink_unicast+0x449/0x710 [ 9752.381761][ T253] netlink_sendmsg+0x723/0xbe0 [ 9752.381761][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9752.381761][ T253] ___sys_sendmsg+0xee/0x170 [ 9752.381761][ T253] __sys_sendmsg+0xcd/0x170 [ 9752.381761][ T253] do_syscall_64+0xc6/0x1e0 [ 9752.381761][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9752.381761][ T253] [ 9752.383997][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9752.383997][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9752.383997][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9752.383997][ T253] ipv6_find_idev+0x102/0x170 [ 9752.383997][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9752.383997][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9752.383997][ T253] netlink_rcv_skb+0x130/0x360 [ 9752.383997][ T253] netlink_unicast+0x449/0x710 [ 9752.383997][ T253] netlink_sendmsg+0x723/0xbe0 [ 9752.383997][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9752.383997][ T253] ___sys_sendmsg+0xee/0x170 [ 9752.383997][ T253] __sys_sendmsg+0xcd/0x170 [ 9752.383997][ T253] do_syscall_64+0xc6/0x1e0 [ 9752.383997][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9752.383997][ T253] [ 9762.626236][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9762.626717][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9762.626717][ T253] dst_init+0x84/0x4a0 [ 9762.626717][ T253] dst_alloc+0x97/0x150 [ 9762.626717][ T253] ip6_dst_alloc+0x23/0x90 [ 9762.626717][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9762.626717][ T253] ip6_pol_route+0x56f/0x840 [ 9762.626717][ T253] fib6_rule_lookup+0x334/0x630 [ 9762.626717][ T253] ip6_route_output_flags+0x259/0x480 [ 9762.626717][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9762.626717][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9762.626717][ T253] netlink_rcv_skb+0x130/0x360 [ 9762.626717][ T253] netlink_unicast+0x449/0x710 [ 9762.626717][ T253] netlink_sendmsg+0x723/0xbe0 [ 9762.626717][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9762.626717][ T253] ___sys_sendmsg+0xee/0x170 [ 9762.626717][ T253] __sys_sendmsg+0xcd/0x170 [ 9762.626717][ T253] do_syscall_64+0xc6/0x1e0 [ 9762.626717][ T253] [ 9762.628918][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9762.628918][ T253] netdev_get_by_index+0x5e/0x80 [ 9762.628918][ T253] fib6_nh_init+0x3d8/0x1580 [ 9762.628918][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9762.628918][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9762.628918][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9762.628918][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9762.628918][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9762.628918][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9762.628918][ T253] addrconf_dad_begin+0x310/0x670 [ 9762.628918][ T253] addrconf_dad_work+0x10b/0xab0 [ 9762.628918][ T253] process_one_work+0x84d/0x18a0 [ 9762.628918][ T253] worker_thread+0x587/0xd30 [ 9762.628918][ T253] kthread+0x28a/0x350 [ 9762.628918][ T253] ret_from_fork+0x31/0x70 [ 9762.628918][ T253] ret_from_fork_asm+0x1a/0x30 [ 9762.628918][ T253] [ 9762.631082][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9762.631082][ T253] netdev_get_by_index+0x5e/0x80 [ 9762.631082][ T253] fib6_nh_init+0x3d8/0x1580 [ 9762.631082][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9762.631082][ T253] ip6_route_add+0x1c/0x140 [ 9762.631082][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9762.631082][ T253] inet6_addr_add+0x4f8/0xa40 [ 9762.631082][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9762.631082][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9762.631082][ T253] netlink_rcv_skb+0x130/0x360 [ 9762.631082][ T253] netlink_unicast+0x449/0x710 [ 9762.631082][ T253] netlink_sendmsg+0x723/0xbe0 [ 9762.631082][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9762.631082][ T253] ___sys_sendmsg+0xee/0x170 [ 9762.631082][ T253] __sys_sendmsg+0xcd/0x170 [ 9762.631082][ T253] do_syscall_64+0xc6/0x1e0 [ 9762.631082][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9762.631082][ T253] [ 9762.633335][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9762.633335][ T253] netdev_get_by_index+0x5e/0x80 [ 9762.633335][ T253] fib6_nh_init+0x3d8/0x1580 [ 9762.633335][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9762.633335][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9762.633335][ T253] ipv6_add_addr+0x411/0x2000 [ 9762.633335][ T253] inet6_addr_add+0x30e/0xa40 [ 9762.633335][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9762.633335][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9762.633335][ T253] netlink_rcv_skb+0x130/0x360 [ 9762.633335][ T253] netlink_unicast+0x449/0x710 [ 9762.633335][ T253] netlink_sendmsg+0x723/0xbe0 [ 9762.633335][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9762.633335][ T253] ___sys_sendmsg+0xee/0x170 [ 9762.633335][ T253] __sys_sendmsg+0xcd/0x170 [ 9762.633335][ T253] do_syscall_64+0xc6/0x1e0 [ 9762.633335][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9762.633335][ T253] [ 9762.635595][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9762.635595][ T253] netdev_get_by_index+0x5e/0x80 [ 9762.635595][ T253] fib6_nh_init+0x3d8/0x1580 [ 9762.635595][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9762.635595][ T253] ip6_route_add+0x1c/0x140 [ 9762.635595][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9762.635595][ T253] addrconf_add_dev+0xe2/0x170 [ 9762.635595][ T253] inet6_addr_add+0x12f/0xa40 [ 9762.635595][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9762.635595][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9762.635595][ T253] netlink_rcv_skb+0x130/0x360 [ 9762.635595][ T253] netlink_unicast+0x449/0x710 [ 9762.635595][ T253] netlink_sendmsg+0x723/0xbe0 [ 9762.635595][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9762.635595][ T253] ___sys_sendmsg+0xee/0x170 [ 9762.635595][ T253] __sys_sendmsg+0xcd/0x170 [ 9762.635595][ T253] do_syscall_64+0xc6/0x1e0 [ 9762.635595][ T253] [ 9762.637813][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9762.637813][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9762.637813][ T253] ipv6_find_idev+0x102/0x170 [ 9762.637813][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9762.637813][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9762.637813][ T253] netlink_rcv_skb+0x130/0x360 [ 9762.637813][ T253] netlink_unicast+0x449/0x710 [ 9762.637813][ T253] netlink_sendmsg+0x723/0xbe0 [ 9762.637813][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9762.637813][ T253] ___sys_sendmsg+0xee/0x170 [ 9762.637813][ T253] __sys_sendmsg+0xcd/0x170 [ 9762.637813][ T253] do_syscall_64+0xc6/0x1e0 [ 9762.637813][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9762.637813][ T253] [ 9762.639544][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9762.639544][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9762.639544][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9762.639544][ T253] ipv6_find_idev+0x102/0x170 [ 9762.639544][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9762.639544][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9762.639544][ T253] netlink_rcv_skb+0x130/0x360 [ 9762.639544][ T253] netlink_unicast+0x449/0x710 [ 9762.639544][ T253] netlink_sendmsg+0x723/0xbe0 [ 9762.639544][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9762.639544][ T253] ___sys_sendmsg+0xee/0x170 [ 9762.639544][ T253] __sys_sendmsg+0xcd/0x170 [ 9762.639544][ T253] do_syscall_64+0xc6/0x1e0 [ 9762.639544][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9762.639544][ T253] [ 9772.882250][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9772.882748][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9772.882748][ T253] dst_init+0x84/0x4a0 [ 9772.882748][ T253] dst_alloc+0x97/0x150 [ 9772.882748][ T253] ip6_dst_alloc+0x23/0x90 [ 9772.882748][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9772.882748][ T253] ip6_pol_route+0x56f/0x840 [ 9772.882748][ T253] fib6_rule_lookup+0x334/0x630 [ 9772.882748][ T253] ip6_route_output_flags+0x259/0x480 [ 9772.882748][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9772.882748][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9772.882748][ T253] netlink_rcv_skb+0x130/0x360 [ 9772.882748][ T253] netlink_unicast+0x449/0x710 [ 9772.882748][ T253] netlink_sendmsg+0x723/0xbe0 [ 9772.882748][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9772.882748][ T253] ___sys_sendmsg+0xee/0x170 [ 9772.882748][ T253] __sys_sendmsg+0xcd/0x170 [ 9772.882748][ T253] do_syscall_64+0xc6/0x1e0 [ 9772.882748][ T253] [ 9772.884984][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9772.884984][ T253] netdev_get_by_index+0x5e/0x80 [ 9772.884984][ T253] fib6_nh_init+0x3d8/0x1580 [ 9772.884984][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9772.884984][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9772.884984][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9772.884984][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9772.884984][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9772.884984][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9772.884984][ T253] addrconf_dad_begin+0x310/0x670 [ 9772.884984][ T253] addrconf_dad_work+0x10b/0xab0 [ 9772.884984][ T253] process_one_work+0x84d/0x18a0 [ 9772.884984][ T253] worker_thread+0x587/0xd30 [ 9772.884984][ T253] kthread+0x28a/0x350 [ 9772.884984][ T253] ret_from_fork+0x31/0x70 [ 9772.884984][ T253] ret_from_fork_asm+0x1a/0x30 [ 9772.884984][ T253] [ 9772.887129][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9772.887129][ T253] netdev_get_by_index+0x5e/0x80 [ 9772.887129][ T253] fib6_nh_init+0x3d8/0x1580 [ 9772.887129][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9772.887129][ T253] ip6_route_add+0x1c/0x140 [ 9772.887129][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9772.887129][ T253] inet6_addr_add+0x4f8/0xa40 [ 9772.887129][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9772.887129][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9772.887129][ T253] netlink_rcv_skb+0x130/0x360 [ 9772.887129][ T253] netlink_unicast+0x449/0x710 [ 9772.887129][ T253] netlink_sendmsg+0x723/0xbe0 [ 9772.887129][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9772.887129][ T253] ___sys_sendmsg+0xee/0x170 [ 9772.887129][ T253] __sys_sendmsg+0xcd/0x170 [ 9772.887129][ T253] do_syscall_64+0xc6/0x1e0 [ 9772.887129][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9772.887129][ T253] [ 9772.889383][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9772.889383][ T253] netdev_get_by_index+0x5e/0x80 [ 9772.889383][ T253] fib6_nh_init+0x3d8/0x1580 [ 9772.889383][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9772.889383][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9772.889383][ T253] ipv6_add_addr+0x411/0x2000 [ 9772.889383][ T253] inet6_addr_add+0x30e/0xa40 [ 9772.889383][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9772.889383][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9772.889383][ T253] netlink_rcv_skb+0x130/0x360 [ 9772.889383][ T253] netlink_unicast+0x449/0x710 [ 9772.889383][ T253] netlink_sendmsg+0x723/0xbe0 [ 9772.889383][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9772.889383][ T253] ___sys_sendmsg+0xee/0x170 [ 9772.889383][ T253] __sys_sendmsg+0xcd/0x170 [ 9772.889383][ T253] do_syscall_64+0xc6/0x1e0 [ 9772.889383][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9772.889383][ T253] [ 9772.891631][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9772.891631][ T253] netdev_get_by_index+0x5e/0x80 [ 9772.891631][ T253] fib6_nh_init+0x3d8/0x1580 [ 9772.891631][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9772.891631][ T253] ip6_route_add+0x1c/0x140 [ 9772.891631][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9772.891631][ T253] addrconf_add_dev+0xe2/0x170 [ 9772.891631][ T253] inet6_addr_add+0x12f/0xa40 [ 9772.891631][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9772.891631][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9772.891631][ T253] netlink_rcv_skb+0x130/0x360 [ 9772.891631][ T253] netlink_unicast+0x449/0x710 [ 9772.891631][ T253] netlink_sendmsg+0x723/0xbe0 [ 9772.891631][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9772.891631][ T253] ___sys_sendmsg+0xee/0x170 [ 9772.891631][ T253] __sys_sendmsg+0xcd/0x170 [ 9772.891631][ T253] do_syscall_64+0xc6/0x1e0 [ 9772.891631][ T253] [ 9772.893838][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9772.893838][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9772.893838][ T253] ipv6_find_idev+0x102/0x170 [ 9772.893838][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9772.893838][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9772.893838][ T253] netlink_rcv_skb+0x130/0x360 [ 9772.893838][ T253] netlink_unicast+0x449/0x710 [ 9772.893838][ T253] netlink_sendmsg+0x723/0xbe0 [ 9772.893838][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9772.893838][ T253] ___sys_sendmsg+0xee/0x170 [ 9772.893838][ T253] __sys_sendmsg+0xcd/0x170 [ 9772.893838][ T253] do_syscall_64+0xc6/0x1e0 [ 9772.893838][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9772.893838][ T253] [ 9772.895589][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9772.895589][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9772.895589][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9772.895589][ T253] ipv6_find_idev+0x102/0x170 [ 9772.895589][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9772.895589][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9772.895589][ T253] netlink_rcv_skb+0x130/0x360 [ 9772.895589][ T253] netlink_unicast+0x449/0x710 [ 9772.895589][ T253] netlink_sendmsg+0x723/0xbe0 [ 9772.895589][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9772.895589][ T253] ___sys_sendmsg+0xee/0x170 [ 9772.895589][ T253] __sys_sendmsg+0xcd/0x170 [ 9772.895589][ T253] do_syscall_64+0xc6/0x1e0 [ 9772.895589][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9772.895589][ T253] [ 9782.986334][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9782.986822][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9782.986822][ T253] dst_init+0x84/0x4a0 [ 9782.986822][ T253] dst_alloc+0x97/0x150 [ 9782.986822][ T253] ip6_dst_alloc+0x23/0x90 [ 9782.986822][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9782.986822][ T253] ip6_pol_route+0x56f/0x840 [ 9782.986822][ T253] fib6_rule_lookup+0x334/0x630 [ 9782.986822][ T253] ip6_route_output_flags+0x259/0x480 [ 9782.986822][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9782.986822][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9782.986822][ T253] netlink_rcv_skb+0x130/0x360 [ 9782.986822][ T253] netlink_unicast+0x449/0x710 [ 9782.986822][ T253] netlink_sendmsg+0x723/0xbe0 [ 9782.986822][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9782.986822][ T253] ___sys_sendmsg+0xee/0x170 [ 9782.986822][ T253] __sys_sendmsg+0xcd/0x170 [ 9782.986822][ T253] do_syscall_64+0xc6/0x1e0 [ 9782.986822][ T253] [ 9782.989041][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9782.989041][ T253] netdev_get_by_index+0x5e/0x80 [ 9782.989041][ T253] fib6_nh_init+0x3d8/0x1580 [ 9782.989041][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9782.989041][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9782.989041][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9782.989041][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9782.989041][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9782.989041][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9782.989041][ T253] addrconf_dad_begin+0x310/0x670 [ 9782.989041][ T253] addrconf_dad_work+0x10b/0xab0 [ 9782.989041][ T253] process_one_work+0x84d/0x18a0 [ 9782.989041][ T253] worker_thread+0x587/0xd30 [ 9782.989041][ T253] kthread+0x28a/0x350 [ 9782.989041][ T253] ret_from_fork+0x31/0x70 [ 9782.989041][ T253] ret_from_fork_asm+0x1a/0x30 [ 9782.989041][ T253] [ 9782.991197][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9782.991197][ T253] netdev_get_by_index+0x5e/0x80 [ 9782.991197][ T253] fib6_nh_init+0x3d8/0x1580 [ 9782.991197][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9782.991197][ T253] ip6_route_add+0x1c/0x140 [ 9782.991197][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9782.991197][ T253] inet6_addr_add+0x4f8/0xa40 [ 9782.991197][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9782.991197][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9782.991197][ T253] netlink_rcv_skb+0x130/0x360 [ 9782.991197][ T253] netlink_unicast+0x449/0x710 [ 9782.991197][ T253] netlink_sendmsg+0x723/0xbe0 [ 9782.991197][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9782.991197][ T253] ___sys_sendmsg+0xee/0x170 [ 9782.991197][ T253] __sys_sendmsg+0xcd/0x170 [ 9782.991197][ T253] do_syscall_64+0xc6/0x1e0 [ 9782.991197][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9782.991197][ T253] [ 9782.993479][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9782.993479][ T253] netdev_get_by_index+0x5e/0x80 [ 9782.993479][ T253] fib6_nh_init+0x3d8/0x1580 [ 9782.993479][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9782.993479][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9782.993479][ T253] ipv6_add_addr+0x411/0x2000 [ 9782.993479][ T253] inet6_addr_add+0x30e/0xa40 [ 9782.993479][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9782.993479][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9782.993479][ T253] netlink_rcv_skb+0x130/0x360 [ 9782.993479][ T253] netlink_unicast+0x449/0x710 [ 9782.993479][ T253] netlink_sendmsg+0x723/0xbe0 [ 9782.993479][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9782.993479][ T253] ___sys_sendmsg+0xee/0x170 [ 9782.993479][ T253] __sys_sendmsg+0xcd/0x170 [ 9782.993479][ T253] do_syscall_64+0xc6/0x1e0 [ 9782.993479][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9782.993479][ T253] [ 9782.995750][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9782.995750][ T253] netdev_get_by_index+0x5e/0x80 [ 9782.995750][ T253] fib6_nh_init+0x3d8/0x1580 [ 9782.995750][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9782.995750][ T253] ip6_route_add+0x1c/0x140 [ 9782.995750][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9782.995750][ T253] addrconf_add_dev+0xe2/0x170 [ 9782.995750][ T253] inet6_addr_add+0x12f/0xa40 [ 9782.995750][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9782.995750][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9782.995750][ T253] netlink_rcv_skb+0x130/0x360 [ 9782.995750][ T253] netlink_unicast+0x449/0x710 [ 9782.995750][ T253] netlink_sendmsg+0x723/0xbe0 [ 9782.995750][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9782.995750][ T253] ___sys_sendmsg+0xee/0x170 [ 9782.995750][ T253] __sys_sendmsg+0xcd/0x170 [ 9782.995750][ T253] do_syscall_64+0xc6/0x1e0 [ 9782.995750][ T253] [ 9782.997966][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9782.997966][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9782.997966][ T253] ipv6_find_idev+0x102/0x170 [ 9782.997966][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9782.997966][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9782.997966][ T253] netlink_rcv_skb+0x130/0x360 [ 9782.997966][ T253] netlink_unicast+0x449/0x710 [ 9782.997966][ T253] netlink_sendmsg+0x723/0xbe0 [ 9782.997966][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9782.997966][ T253] ___sys_sendmsg+0xee/0x170 [ 9782.997966][ T253] __sys_sendmsg+0xcd/0x170 [ 9782.997966][ T253] do_syscall_64+0xc6/0x1e0 [ 9782.997966][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9782.997966][ T253] [ 9782.999711][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9782.999711][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9782.999711][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9782.999711][ T253] ipv6_find_idev+0x102/0x170 [ 9782.999711][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9782.999711][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9782.999711][ T253] netlink_rcv_skb+0x130/0x360 [ 9782.999711][ T253] netlink_unicast+0x449/0x710 [ 9782.999711][ T253] netlink_sendmsg+0x723/0xbe0 [ 9782.999711][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9782.999711][ T253] ___sys_sendmsg+0xee/0x170 [ 9782.999711][ T253] __sys_sendmsg+0xcd/0x170 [ 9782.999711][ T253] do_syscall_64+0xc6/0x1e0 [ 9782.999711][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9782.999711][ T253] [ 9793.098242][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9793.098713][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9793.098713][ T253] dst_init+0x84/0x4a0 [ 9793.098713][ T253] dst_alloc+0x97/0x150 [ 9793.098713][ T253] ip6_dst_alloc+0x23/0x90 [ 9793.098713][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9793.098713][ T253] ip6_pol_route+0x56f/0x840 [ 9793.098713][ T253] fib6_rule_lookup+0x334/0x630 [ 9793.098713][ T253] ip6_route_output_flags+0x259/0x480 [ 9793.098713][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9793.098713][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9793.098713][ T253] netlink_rcv_skb+0x130/0x360 [ 9793.098713][ T253] netlink_unicast+0x449/0x710 [ 9793.098713][ T253] netlink_sendmsg+0x723/0xbe0 [ 9793.098713][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9793.098713][ T253] ___sys_sendmsg+0xee/0x170 [ 9793.098713][ T253] __sys_sendmsg+0xcd/0x170 [ 9793.098713][ T253] do_syscall_64+0xc6/0x1e0 [ 9793.098713][ T253] [ 9793.100893][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9793.100893][ T253] netdev_get_by_index+0x5e/0x80 [ 9793.100893][ T253] fib6_nh_init+0x3d8/0x1580 [ 9793.100893][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9793.100893][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9793.100893][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9793.100893][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9793.100893][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9793.100893][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9793.100893][ T253] addrconf_dad_begin+0x310/0x670 [ 9793.100893][ T253] addrconf_dad_work+0x10b/0xab0 [ 9793.100893][ T253] process_one_work+0x84d/0x18a0 [ 9793.100893][ T253] worker_thread+0x587/0xd30 [ 9793.100893][ T253] kthread+0x28a/0x350 [ 9793.100893][ T253] ret_from_fork+0x31/0x70 [ 9793.100893][ T253] ret_from_fork_asm+0x1a/0x30 [ 9793.100893][ T253] [ 9793.103028][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9793.103028][ T253] netdev_get_by_index+0x5e/0x80 [ 9793.103028][ T253] fib6_nh_init+0x3d8/0x1580 [ 9793.103028][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9793.103028][ T253] ip6_route_add+0x1c/0x140 [ 9793.103028][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9793.103028][ T253] inet6_addr_add+0x4f8/0xa40 [ 9793.103028][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9793.103028][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9793.103028][ T253] netlink_rcv_skb+0x130/0x360 [ 9793.103028][ T253] netlink_unicast+0x449/0x710 [ 9793.103028][ T253] netlink_sendmsg+0x723/0xbe0 [ 9793.103028][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9793.103028][ T253] ___sys_sendmsg+0xee/0x170 [ 9793.103028][ T253] __sys_sendmsg+0xcd/0x170 [ 9793.103028][ T253] do_syscall_64+0xc6/0x1e0 [ 9793.103028][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9793.103028][ T253] [ 9793.105298][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9793.105298][ T253] netdev_get_by_index+0x5e/0x80 [ 9793.105298][ T253] fib6_nh_init+0x3d8/0x1580 [ 9793.105298][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9793.105298][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9793.105298][ T253] ipv6_add_addr+0x411/0x2000 [ 9793.105298][ T253] inet6_addr_add+0x30e/0xa40 [ 9793.105298][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9793.105298][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9793.105298][ T253] netlink_rcv_skb+0x130/0x360 [ 9793.105298][ T253] netlink_unicast+0x449/0x710 [ 9793.105298][ T253] netlink_sendmsg+0x723/0xbe0 [ 9793.105298][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9793.105298][ T253] ___sys_sendmsg+0xee/0x170 [ 9793.105298][ T253] __sys_sendmsg+0xcd/0x170 [ 9793.105298][ T253] do_syscall_64+0xc6/0x1e0 [ 9793.105298][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9793.105298][ T253] [ 9793.107540][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9793.107540][ T253] netdev_get_by_index+0x5e/0x80 [ 9793.107540][ T253] fib6_nh_init+0x3d8/0x1580 [ 9793.107540][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9793.107540][ T253] ip6_route_add+0x1c/0x140 [ 9793.107540][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9793.107540][ T253] addrconf_add_dev+0xe2/0x170 [ 9793.107540][ T253] inet6_addr_add+0x12f/0xa40 [ 9793.107540][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9793.107540][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9793.107540][ T253] netlink_rcv_skb+0x130/0x360 [ 9793.107540][ T253] netlink_unicast+0x449/0x710 [ 9793.107540][ T253] netlink_sendmsg+0x723/0xbe0 [ 9793.107540][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9793.107540][ T253] ___sys_sendmsg+0xee/0x170 [ 9793.107540][ T253] __sys_sendmsg+0xcd/0x170 [ 9793.107540][ T253] do_syscall_64+0xc6/0x1e0 [ 9793.107540][ T253] [ 9793.109740][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9793.109740][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9793.109740][ T253] ipv6_find_idev+0x102/0x170 [ 9793.109740][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9793.109740][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9793.109740][ T253] netlink_rcv_skb+0x130/0x360 [ 9793.109740][ T253] netlink_unicast+0x449/0x710 [ 9793.109740][ T253] netlink_sendmsg+0x723/0xbe0 [ 9793.109740][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9793.109740][ T253] ___sys_sendmsg+0xee/0x170 [ 9793.109740][ T253] __sys_sendmsg+0xcd/0x170 [ 9793.109740][ T253] do_syscall_64+0xc6/0x1e0 [ 9793.109740][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9793.109740][ T253] [ 9793.111466][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9793.111466][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9793.111466][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9793.111466][ T253] ipv6_find_idev+0x102/0x170 [ 9793.111466][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9793.111466][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9793.111466][ T253] netlink_rcv_skb+0x130/0x360 [ 9793.111466][ T253] netlink_unicast+0x449/0x710 [ 9793.111466][ T253] netlink_sendmsg+0x723/0xbe0 [ 9793.111466][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9793.111466][ T253] ___sys_sendmsg+0xee/0x170 [ 9793.111466][ T253] __sys_sendmsg+0xcd/0x170 [ 9793.111466][ T253] do_syscall_64+0xc6/0x1e0 [ 9793.111466][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9793.111466][ T253] [ 9803.354301][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9803.354720][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9803.354720][ T253] dst_init+0x84/0x4a0 [ 9803.354720][ T253] dst_alloc+0x97/0x150 [ 9803.354720][ T253] ip6_dst_alloc+0x23/0x90 [ 9803.354720][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9803.354720][ T253] ip6_pol_route+0x56f/0x840 [ 9803.354720][ T253] fib6_rule_lookup+0x334/0x630 [ 9803.354720][ T253] ip6_route_output_flags+0x259/0x480 [ 9803.354720][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9803.354720][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9803.354720][ T253] netlink_rcv_skb+0x130/0x360 [ 9803.354720][ T253] netlink_unicast+0x449/0x710 [ 9803.354720][ T253] netlink_sendmsg+0x723/0xbe0 [ 9803.354720][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9803.354720][ T253] ___sys_sendmsg+0xee/0x170 [ 9803.354720][ T253] __sys_sendmsg+0xcd/0x170 [ 9803.354720][ T253] do_syscall_64+0xc6/0x1e0 [ 9803.354720][ T253] [ 9803.356921][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9803.356921][ T253] netdev_get_by_index+0x5e/0x80 [ 9803.356921][ T253] fib6_nh_init+0x3d8/0x1580 [ 9803.356921][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9803.356921][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9803.356921][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9803.356921][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9803.356921][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9803.356921][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9803.356921][ T253] addrconf_dad_begin+0x310/0x670 [ 9803.356921][ T253] addrconf_dad_work+0x10b/0xab0 [ 9803.356921][ T253] process_one_work+0x84d/0x18a0 [ 9803.356921][ T253] worker_thread+0x587/0xd30 [ 9803.356921][ T253] kthread+0x28a/0x350 [ 9803.356921][ T253] ret_from_fork+0x31/0x70 [ 9803.356921][ T253] ret_from_fork_asm+0x1a/0x30 [ 9803.356921][ T253] [ 9803.359094][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9803.359094][ T253] netdev_get_by_index+0x5e/0x80 [ 9803.359094][ T253] fib6_nh_init+0x3d8/0x1580 [ 9803.359094][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9803.359094][ T253] ip6_route_add+0x1c/0x140 [ 9803.359094][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9803.359094][ T253] inet6_addr_add+0x4f8/0xa40 [ 9803.359094][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9803.359094][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9803.359094][ T253] netlink_rcv_skb+0x130/0x360 [ 9803.359094][ T253] netlink_unicast+0x449/0x710 [ 9803.359094][ T253] netlink_sendmsg+0x723/0xbe0 [ 9803.359094][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9803.359094][ T253] ___sys_sendmsg+0xee/0x170 [ 9803.359094][ T253] __sys_sendmsg+0xcd/0x170 [ 9803.359094][ T253] do_syscall_64+0xc6/0x1e0 [ 9803.359094][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9803.359094][ T253] [ 9803.361348][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9803.361348][ T253] netdev_get_by_index+0x5e/0x80 [ 9803.361348][ T253] fib6_nh_init+0x3d8/0x1580 [ 9803.361348][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9803.361348][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9803.361348][ T253] ipv6_add_addr+0x411/0x2000 [ 9803.361348][ T253] inet6_addr_add+0x30e/0xa40 [ 9803.361348][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9803.361348][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9803.361348][ T253] netlink_rcv_skb+0x130/0x360 [ 9803.361348][ T253] netlink_unicast+0x449/0x710 [ 9803.361348][ T253] netlink_sendmsg+0x723/0xbe0 [ 9803.361348][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9803.361348][ T253] ___sys_sendmsg+0xee/0x170 [ 9803.361348][ T253] __sys_sendmsg+0xcd/0x170 [ 9803.361348][ T253] do_syscall_64+0xc6/0x1e0 [ 9803.361348][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9803.361348][ T253] [ 9803.363597][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9803.363597][ T253] netdev_get_by_index+0x5e/0x80 [ 9803.363597][ T253] fib6_nh_init+0x3d8/0x1580 [ 9803.363597][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9803.363597][ T253] ip6_route_add+0x1c/0x140 [ 9803.363597][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9803.363597][ T253] addrconf_add_dev+0xe2/0x170 [ 9803.363597][ T253] inet6_addr_add+0x12f/0xa40 [ 9803.363597][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9803.363597][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9803.363597][ T253] netlink_rcv_skb+0x130/0x360 [ 9803.363597][ T253] netlink_unicast+0x449/0x710 [ 9803.363597][ T253] netlink_sendmsg+0x723/0xbe0 [ 9803.363597][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9803.363597][ T253] ___sys_sendmsg+0xee/0x170 [ 9803.363597][ T253] __sys_sendmsg+0xcd/0x170 [ 9803.363597][ T253] do_syscall_64+0xc6/0x1e0 [ 9803.363597][ T253] [ 9803.365817][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9803.365817][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9803.365817][ T253] ipv6_find_idev+0x102/0x170 [ 9803.365817][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9803.365817][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9803.365817][ T253] netlink_rcv_skb+0x130/0x360 [ 9803.365817][ T253] netlink_unicast+0x449/0x710 [ 9803.365817][ T253] netlink_sendmsg+0x723/0xbe0 [ 9803.365817][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9803.365817][ T253] ___sys_sendmsg+0xee/0x170 [ 9803.365817][ T253] __sys_sendmsg+0xcd/0x170 [ 9803.365817][ T253] do_syscall_64+0xc6/0x1e0 [ 9803.365817][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9803.365817][ T253] [ 9803.367538][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9803.367538][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9803.367538][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9803.367538][ T253] ipv6_find_idev+0x102/0x170 [ 9803.367538][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9803.367538][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9803.367538][ T253] netlink_rcv_skb+0x130/0x360 [ 9803.367538][ T253] netlink_unicast+0x449/0x710 [ 9803.367538][ T253] netlink_sendmsg+0x723/0xbe0 [ 9803.367538][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9803.367538][ T253] ___sys_sendmsg+0xee/0x170 [ 9803.367538][ T253] __sys_sendmsg+0xcd/0x170 [ 9803.367538][ T253] do_syscall_64+0xc6/0x1e0 [ 9803.367538][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9803.367538][ T253] [ 9813.610243][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9813.610648][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9813.610648][ T253] dst_init+0x84/0x4a0 [ 9813.610648][ T253] dst_alloc+0x97/0x150 [ 9813.610648][ T253] ip6_dst_alloc+0x23/0x90 [ 9813.610648][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9813.610648][ T253] ip6_pol_route+0x56f/0x840 [ 9813.610648][ T253] fib6_rule_lookup+0x334/0x630 [ 9813.610648][ T253] ip6_route_output_flags+0x259/0x480 [ 9813.610648][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9813.610648][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9813.610648][ T253] netlink_rcv_skb+0x130/0x360 [ 9813.610648][ T253] netlink_unicast+0x449/0x710 [ 9813.610648][ T253] netlink_sendmsg+0x723/0xbe0 [ 9813.610648][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9813.610648][ T253] ___sys_sendmsg+0xee/0x170 [ 9813.610648][ T253] __sys_sendmsg+0xcd/0x170 [ 9813.610648][ T253] do_syscall_64+0xc6/0x1e0 [ 9813.610648][ T253] [ 9813.612845][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9813.612845][ T253] netdev_get_by_index+0x5e/0x80 [ 9813.612845][ T253] fib6_nh_init+0x3d8/0x1580 [ 9813.612845][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9813.612845][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9813.612845][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9813.612845][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9813.612845][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9813.612845][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9813.612845][ T253] addrconf_dad_begin+0x310/0x670 [ 9813.612845][ T253] addrconf_dad_work+0x10b/0xab0 [ 9813.612845][ T253] process_one_work+0x84d/0x18a0 [ 9813.612845][ T253] worker_thread+0x587/0xd30 [ 9813.612845][ T253] kthread+0x28a/0x350 [ 9813.612845][ T253] ret_from_fork+0x31/0x70 [ 9813.612845][ T253] ret_from_fork_asm+0x1a/0x30 [ 9813.612845][ T253] [ 9813.615002][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9813.615002][ T253] netdev_get_by_index+0x5e/0x80 [ 9813.615002][ T253] fib6_nh_init+0x3d8/0x1580 [ 9813.615002][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9813.615002][ T253] ip6_route_add+0x1c/0x140 [ 9813.615002][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9813.615002][ T253] inet6_addr_add+0x4f8/0xa40 [ 9813.615002][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9813.615002][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9813.615002][ T253] netlink_rcv_skb+0x130/0x360 [ 9813.615002][ T253] netlink_unicast+0x449/0x710 [ 9813.615002][ T253] netlink_sendmsg+0x723/0xbe0 [ 9813.615002][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9813.615002][ T253] ___sys_sendmsg+0xee/0x170 [ 9813.615002][ T253] __sys_sendmsg+0xcd/0x170 [ 9813.615002][ T253] do_syscall_64+0xc6/0x1e0 [ 9813.615002][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9813.615002][ T253] [ 9813.617238][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9813.617238][ T253] netdev_get_by_index+0x5e/0x80 [ 9813.617238][ T253] fib6_nh_init+0x3d8/0x1580 [ 9813.617238][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9813.617238][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9813.617238][ T253] ipv6_add_addr+0x411/0x2000 [ 9813.617238][ T253] inet6_addr_add+0x30e/0xa40 [ 9813.617238][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9813.617238][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9813.617238][ T253] netlink_rcv_skb+0x130/0x360 [ 9813.617238][ T253] netlink_unicast+0x449/0x710 [ 9813.617238][ T253] netlink_sendmsg+0x723/0xbe0 [ 9813.617238][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9813.617238][ T253] ___sys_sendmsg+0xee/0x170 [ 9813.617238][ T253] __sys_sendmsg+0xcd/0x170 [ 9813.617238][ T253] do_syscall_64+0xc6/0x1e0 [ 9813.617238][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9813.617238][ T253] [ 9813.619473][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9813.619473][ T253] netdev_get_by_index+0x5e/0x80 [ 9813.619473][ T253] fib6_nh_init+0x3d8/0x1580 [ 9813.619473][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9813.619473][ T253] ip6_route_add+0x1c/0x140 [ 9813.619473][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9813.619473][ T253] addrconf_add_dev+0xe2/0x170 [ 9813.619473][ T253] inet6_addr_add+0x12f/0xa40 [ 9813.619473][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9813.619473][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9813.619473][ T253] netlink_rcv_skb+0x130/0x360 [ 9813.619473][ T253] netlink_unicast+0x449/0x710 [ 9813.619473][ T253] netlink_sendmsg+0x723/0xbe0 [ 9813.619473][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9813.619473][ T253] ___sys_sendmsg+0xee/0x170 [ 9813.619473][ T253] __sys_sendmsg+0xcd/0x170 [ 9813.619473][ T253] do_syscall_64+0xc6/0x1e0 [ 9813.619473][ T253] [ 9813.621669][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9813.621669][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9813.621669][ T253] ipv6_find_idev+0x102/0x170 [ 9813.621669][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9813.621669][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9813.621669][ T253] netlink_rcv_skb+0x130/0x360 [ 9813.621669][ T253] netlink_unicast+0x449/0x710 [ 9813.621669][ T253] netlink_sendmsg+0x723/0xbe0 [ 9813.621669][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9813.621669][ T253] ___sys_sendmsg+0xee/0x170 [ 9813.621669][ T253] __sys_sendmsg+0xcd/0x170 [ 9813.621669][ T253] do_syscall_64+0xc6/0x1e0 [ 9813.621669][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9813.621669][ T253] [ 9813.623391][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9813.623391][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9813.623391][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9813.623391][ T253] ipv6_find_idev+0x102/0x170 [ 9813.623391][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9813.623391][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9813.623391][ T253] netlink_rcv_skb+0x130/0x360 [ 9813.623391][ T253] netlink_unicast+0x449/0x710 [ 9813.623391][ T253] netlink_sendmsg+0x723/0xbe0 [ 9813.623391][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9813.623391][ T253] ___sys_sendmsg+0xee/0x170 [ 9813.623391][ T253] __sys_sendmsg+0xcd/0x170 [ 9813.623391][ T253] do_syscall_64+0xc6/0x1e0 [ 9813.623391][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9813.623391][ T253] [ 9823.866305][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9823.866724][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9823.866724][ T253] dst_init+0x84/0x4a0 [ 9823.866724][ T253] dst_alloc+0x97/0x150 [ 9823.866724][ T253] ip6_dst_alloc+0x23/0x90 [ 9823.866724][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9823.866724][ T253] ip6_pol_route+0x56f/0x840 [ 9823.866724][ T253] fib6_rule_lookup+0x334/0x630 [ 9823.866724][ T253] ip6_route_output_flags+0x259/0x480 [ 9823.866724][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9823.866724][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9823.866724][ T253] netlink_rcv_skb+0x130/0x360 [ 9823.866724][ T253] netlink_unicast+0x449/0x710 [ 9823.866724][ T253] netlink_sendmsg+0x723/0xbe0 [ 9823.866724][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9823.866724][ T253] ___sys_sendmsg+0xee/0x170 [ 9823.866724][ T253] __sys_sendmsg+0xcd/0x170 [ 9823.866724][ T253] do_syscall_64+0xc6/0x1e0 [ 9823.866724][ T253] [ 9823.868947][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9823.868947][ T253] netdev_get_by_index+0x5e/0x80 [ 9823.868947][ T253] fib6_nh_init+0x3d8/0x1580 [ 9823.868947][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9823.868947][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9823.868947][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9823.868947][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9823.868947][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9823.868947][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9823.868947][ T253] addrconf_dad_begin+0x310/0x670 [ 9823.868947][ T253] addrconf_dad_work+0x10b/0xab0 [ 9823.868947][ T253] process_one_work+0x84d/0x18a0 [ 9823.868947][ T253] worker_thread+0x587/0xd30 [ 9823.868947][ T253] kthread+0x28a/0x350 [ 9823.868947][ T253] ret_from_fork+0x31/0x70 [ 9823.868947][ T253] ret_from_fork_asm+0x1a/0x30 [ 9823.868947][ T253] [ 9823.871113][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9823.871113][ T253] netdev_get_by_index+0x5e/0x80 [ 9823.871113][ T253] fib6_nh_init+0x3d8/0x1580 [ 9823.871113][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9823.871113][ T253] ip6_route_add+0x1c/0x140 [ 9823.871113][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9823.871113][ T253] inet6_addr_add+0x4f8/0xa40 [ 9823.871113][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9823.871113][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9823.871113][ T253] netlink_rcv_skb+0x130/0x360 [ 9823.871113][ T253] netlink_unicast+0x449/0x710 [ 9823.871113][ T253] netlink_sendmsg+0x723/0xbe0 [ 9823.871113][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9823.871113][ T253] ___sys_sendmsg+0xee/0x170 [ 9823.871113][ T253] __sys_sendmsg+0xcd/0x170 [ 9823.871113][ T253] do_syscall_64+0xc6/0x1e0 [ 9823.871113][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9823.871113][ T253] [ 9823.873368][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9823.873368][ T253] netdev_get_by_index+0x5e/0x80 [ 9823.873368][ T253] fib6_nh_init+0x3d8/0x1580 [ 9823.873368][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9823.873368][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9823.873368][ T253] ipv6_add_addr+0x411/0x2000 [ 9823.873368][ T253] inet6_addr_add+0x30e/0xa40 [ 9823.873368][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9823.873368][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9823.873368][ T253] netlink_rcv_skb+0x130/0x360 [ 9823.873368][ T253] netlink_unicast+0x449/0x710 [ 9823.873368][ T253] netlink_sendmsg+0x723/0xbe0 [ 9823.873368][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9823.873368][ T253] ___sys_sendmsg+0xee/0x170 [ 9823.873368][ T253] __sys_sendmsg+0xcd/0x170 [ 9823.873368][ T253] do_syscall_64+0xc6/0x1e0 [ 9823.873368][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9823.873368][ T253] [ 9823.875629][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9823.875629][ T253] netdev_get_by_index+0x5e/0x80 [ 9823.875629][ T253] fib6_nh_init+0x3d8/0x1580 [ 9823.875629][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9823.875629][ T253] ip6_route_add+0x1c/0x140 [ 9823.875629][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9823.875629][ T253] addrconf_add_dev+0xe2/0x170 [ 9823.875629][ T253] inet6_addr_add+0x12f/0xa40 [ 9823.875629][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9823.875629][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9823.875629][ T253] netlink_rcv_skb+0x130/0x360 [ 9823.875629][ T253] netlink_unicast+0x449/0x710 [ 9823.875629][ T253] netlink_sendmsg+0x723/0xbe0 [ 9823.875629][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9823.875629][ T253] ___sys_sendmsg+0xee/0x170 [ 9823.875629][ T253] __sys_sendmsg+0xcd/0x170 [ 9823.875629][ T253] do_syscall_64+0xc6/0x1e0 [ 9823.875629][ T253] [ 9823.877836][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9823.877836][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9823.877836][ T253] ipv6_find_idev+0x102/0x170 [ 9823.877836][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9823.877836][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9823.877836][ T253] netlink_rcv_skb+0x130/0x360 [ 9823.877836][ T253] netlink_unicast+0x449/0x710 [ 9823.877836][ T253] netlink_sendmsg+0x723/0xbe0 [ 9823.877836][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9823.877836][ T253] ___sys_sendmsg+0xee/0x170 [ 9823.877836][ T253] __sys_sendmsg+0xcd/0x170 [ 9823.877836][ T253] do_syscall_64+0xc6/0x1e0 [ 9823.877836][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9823.877836][ T253] [ 9823.879567][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9823.879567][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9823.879567][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9823.879567][ T253] ipv6_find_idev+0x102/0x170 [ 9823.879567][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9823.879567][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9823.879567][ T253] netlink_rcv_skb+0x130/0x360 [ 9823.879567][ T253] netlink_unicast+0x449/0x710 [ 9823.879567][ T253] netlink_sendmsg+0x723/0xbe0 [ 9823.879567][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9823.879567][ T253] ___sys_sendmsg+0xee/0x170 [ 9823.879567][ T253] __sys_sendmsg+0xcd/0x170 [ 9823.879567][ T253] do_syscall_64+0xc6/0x1e0 [ 9823.879567][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9823.879567][ T253] [ 9834.298379][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9834.298808][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9834.298808][ T253] dst_init+0x84/0x4a0 [ 9834.298808][ T253] dst_alloc+0x97/0x150 [ 9834.298808][ T253] ip6_dst_alloc+0x23/0x90 [ 9834.298808][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9834.298808][ T253] ip6_pol_route+0x56f/0x840 [ 9834.298808][ T253] fib6_rule_lookup+0x334/0x630 [ 9834.298808][ T253] ip6_route_output_flags+0x259/0x480 [ 9834.298808][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9834.298808][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9834.298808][ T253] netlink_rcv_skb+0x130/0x360 [ 9834.298808][ T253] netlink_unicast+0x449/0x710 [ 9834.298808][ T253] netlink_sendmsg+0x723/0xbe0 [ 9834.298808][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9834.298808][ T253] ___sys_sendmsg+0xee/0x170 [ 9834.298808][ T253] __sys_sendmsg+0xcd/0x170 [ 9834.298808][ T253] do_syscall_64+0xc6/0x1e0 [ 9834.298808][ T253] [ 9834.301007][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9834.301007][ T253] netdev_get_by_index+0x5e/0x80 [ 9834.301007][ T253] fib6_nh_init+0x3d8/0x1580 [ 9834.301007][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9834.301007][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9834.301007][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9834.301007][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9834.301007][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9834.301007][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9834.301007][ T253] addrconf_dad_begin+0x310/0x670 [ 9834.301007][ T253] addrconf_dad_work+0x10b/0xab0 [ 9834.301007][ T253] process_one_work+0x84d/0x18a0 [ 9834.301007][ T253] worker_thread+0x587/0xd30 [ 9834.301007][ T253] kthread+0x28a/0x350 [ 9834.301007][ T253] ret_from_fork+0x31/0x70 [ 9834.301007][ T253] ret_from_fork_asm+0x1a/0x30 [ 9834.301007][ T253] [ 9834.303164][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9834.303164][ T253] netdev_get_by_index+0x5e/0x80 [ 9834.303164][ T253] fib6_nh_init+0x3d8/0x1580 [ 9834.303164][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9834.303164][ T253] ip6_route_add+0x1c/0x140 [ 9834.303164][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9834.303164][ T253] inet6_addr_add+0x4f8/0xa40 [ 9834.303164][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9834.303164][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9834.303164][ T253] netlink_rcv_skb+0x130/0x360 [ 9834.303164][ T253] netlink_unicast+0x449/0x710 [ 9834.303164][ T253] netlink_sendmsg+0x723/0xbe0 [ 9834.303164][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9834.303164][ T253] ___sys_sendmsg+0xee/0x170 [ 9834.303164][ T253] __sys_sendmsg+0xcd/0x170 [ 9834.303164][ T253] do_syscall_64+0xc6/0x1e0 [ 9834.303164][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9834.303164][ T253] [ 9834.305422][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9834.305422][ T253] netdev_get_by_index+0x5e/0x80 [ 9834.305422][ T253] fib6_nh_init+0x3d8/0x1580 [ 9834.305422][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9834.305422][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9834.305422][ T253] ipv6_add_addr+0x411/0x2000 [ 9834.305422][ T253] inet6_addr_add+0x30e/0xa40 [ 9834.305422][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9834.305422][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9834.305422][ T253] netlink_rcv_skb+0x130/0x360 [ 9834.305422][ T253] netlink_unicast+0x449/0x710 [ 9834.305422][ T253] netlink_sendmsg+0x723/0xbe0 [ 9834.305422][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9834.305422][ T253] ___sys_sendmsg+0xee/0x170 [ 9834.305422][ T253] __sys_sendmsg+0xcd/0x170 [ 9834.305422][ T253] do_syscall_64+0xc6/0x1e0 [ 9834.305422][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9834.305422][ T253] [ 9834.307684][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9834.307684][ T253] netdev_get_by_index+0x5e/0x80 [ 9834.307684][ T253] fib6_nh_init+0x3d8/0x1580 [ 9834.307684][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9834.307684][ T253] ip6_route_add+0x1c/0x140 [ 9834.307684][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9834.307684][ T253] addrconf_add_dev+0xe2/0x170 [ 9834.307684][ T253] inet6_addr_add+0x12f/0xa40 [ 9834.307684][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9834.307684][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9834.307684][ T253] netlink_rcv_skb+0x130/0x360 [ 9834.307684][ T253] netlink_unicast+0x449/0x710 [ 9834.307684][ T253] netlink_sendmsg+0x723/0xbe0 [ 9834.307684][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9834.307684][ T253] ___sys_sendmsg+0xee/0x170 [ 9834.307684][ T253] __sys_sendmsg+0xcd/0x170 [ 9834.307684][ T253] do_syscall_64+0xc6/0x1e0 [ 9834.307684][ T253] [ 9834.309920][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9834.309920][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9834.309920][ T253] ipv6_find_idev+0x102/0x170 [ 9834.309920][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9834.309920][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9834.309920][ T253] netlink_rcv_skb+0x130/0x360 [ 9834.309920][ T253] netlink_unicast+0x449/0x710 [ 9834.309920][ T253] netlink_sendmsg+0x723/0xbe0 [ 9834.309920][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9834.309920][ T253] ___sys_sendmsg+0xee/0x170 [ 9834.309920][ T253] __sys_sendmsg+0xcd/0x170 [ 9834.309920][ T253] do_syscall_64+0xc6/0x1e0 [ 9834.309920][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9834.309920][ T253] [ 9834.311650][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9834.311650][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9834.311650][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9834.311650][ T253] ipv6_find_idev+0x102/0x170 [ 9834.311650][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9834.311650][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9834.311650][ T253] netlink_rcv_skb+0x130/0x360 [ 9834.311650][ T253] netlink_unicast+0x449/0x710 [ 9834.311650][ T253] netlink_sendmsg+0x723/0xbe0 [ 9834.311650][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9834.311650][ T253] ___sys_sendmsg+0xee/0x170 [ 9834.311650][ T253] __sys_sendmsg+0xcd/0x170 [ 9834.311650][ T253] do_syscall_64+0xc6/0x1e0 [ 9834.311650][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9834.311650][ T253] [ 9844.554304][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9844.554723][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9844.554723][ T253] dst_init+0x84/0x4a0 [ 9844.554723][ T253] dst_alloc+0x97/0x150 [ 9844.554723][ T253] ip6_dst_alloc+0x23/0x90 [ 9844.554723][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9844.554723][ T253] ip6_pol_route+0x56f/0x840 [ 9844.554723][ T253] fib6_rule_lookup+0x334/0x630 [ 9844.554723][ T253] ip6_route_output_flags+0x259/0x480 [ 9844.554723][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9844.554723][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9844.554723][ T253] netlink_rcv_skb+0x130/0x360 [ 9844.554723][ T253] netlink_unicast+0x449/0x710 [ 9844.554723][ T253] netlink_sendmsg+0x723/0xbe0 [ 9844.554723][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9844.554723][ T253] ___sys_sendmsg+0xee/0x170 [ 9844.554723][ T253] __sys_sendmsg+0xcd/0x170 [ 9844.554723][ T253] do_syscall_64+0xc6/0x1e0 [ 9844.554723][ T253] [ 9844.556944][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9844.556944][ T253] netdev_get_by_index+0x5e/0x80 [ 9844.556944][ T253] fib6_nh_init+0x3d8/0x1580 [ 9844.556944][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9844.556944][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9844.556944][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9844.556944][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9844.556944][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9844.556944][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9844.556944][ T253] addrconf_dad_begin+0x310/0x670 [ 9844.556944][ T253] addrconf_dad_work+0x10b/0xab0 [ 9844.556944][ T253] process_one_work+0x84d/0x18a0 [ 9844.556944][ T253] worker_thread+0x587/0xd30 [ 9844.556944][ T253] kthread+0x28a/0x350 [ 9844.556944][ T253] ret_from_fork+0x31/0x70 [ 9844.556944][ T253] ret_from_fork_asm+0x1a/0x30 [ 9844.556944][ T253] [ 9844.559109][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9844.559109][ T253] netdev_get_by_index+0x5e/0x80 [ 9844.559109][ T253] fib6_nh_init+0x3d8/0x1580 [ 9844.559109][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9844.559109][ T253] ip6_route_add+0x1c/0x140 [ 9844.559109][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9844.559109][ T253] inet6_addr_add+0x4f8/0xa40 [ 9844.559109][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9844.559109][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9844.559109][ T253] netlink_rcv_skb+0x130/0x360 [ 9844.559109][ T253] netlink_unicast+0x449/0x710 [ 9844.559109][ T253] netlink_sendmsg+0x723/0xbe0 [ 9844.559109][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9844.559109][ T253] ___sys_sendmsg+0xee/0x170 [ 9844.559109][ T253] __sys_sendmsg+0xcd/0x170 [ 9844.559109][ T253] do_syscall_64+0xc6/0x1e0 [ 9844.559109][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9844.559109][ T253] [ 9844.561357][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9844.561357][ T253] netdev_get_by_index+0x5e/0x80 [ 9844.561357][ T253] fib6_nh_init+0x3d8/0x1580 [ 9844.561357][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9844.561357][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9844.561357][ T253] ipv6_add_addr+0x411/0x2000 [ 9844.561357][ T253] inet6_addr_add+0x30e/0xa40 [ 9844.561357][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9844.561357][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9844.561357][ T253] netlink_rcv_skb+0x130/0x360 [ 9844.561357][ T253] netlink_unicast+0x449/0x710 [ 9844.561357][ T253] netlink_sendmsg+0x723/0xbe0 [ 9844.561357][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9844.561357][ T253] ___sys_sendmsg+0xee/0x170 [ 9844.561357][ T253] __sys_sendmsg+0xcd/0x170 [ 9844.561357][ T253] do_syscall_64+0xc6/0x1e0 [ 9844.561357][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9844.561357][ T253] [ 9844.563596][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9844.563596][ T253] netdev_get_by_index+0x5e/0x80 [ 9844.563596][ T253] fib6_nh_init+0x3d8/0x1580 [ 9844.563596][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9844.563596][ T253] ip6_route_add+0x1c/0x140 [ 9844.563596][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9844.563596][ T253] addrconf_add_dev+0xe2/0x170 [ 9844.563596][ T253] inet6_addr_add+0x12f/0xa40 [ 9844.563596][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9844.563596][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9844.563596][ T253] netlink_rcv_skb+0x130/0x360 [ 9844.563596][ T253] netlink_unicast+0x449/0x710 [ 9844.563596][ T253] netlink_sendmsg+0x723/0xbe0 [ 9844.563596][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9844.563596][ T253] ___sys_sendmsg+0xee/0x170 [ 9844.563596][ T253] __sys_sendmsg+0xcd/0x170 [ 9844.563596][ T253] do_syscall_64+0xc6/0x1e0 [ 9844.563596][ T253] [ 9844.565814][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9844.565814][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9844.565814][ T253] ipv6_find_idev+0x102/0x170 [ 9844.565814][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9844.565814][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9844.565814][ T253] netlink_rcv_skb+0x130/0x360 [ 9844.565814][ T253] netlink_unicast+0x449/0x710 [ 9844.565814][ T253] netlink_sendmsg+0x723/0xbe0 [ 9844.565814][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9844.565814][ T253] ___sys_sendmsg+0xee/0x170 [ 9844.565814][ T253] __sys_sendmsg+0xcd/0x170 [ 9844.565814][ T253] do_syscall_64+0xc6/0x1e0 [ 9844.565814][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9844.565814][ T253] [ 9844.567540][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9844.567540][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9844.567540][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9844.567540][ T253] ipv6_find_idev+0x102/0x170 [ 9844.567540][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9844.567540][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9844.567540][ T253] netlink_rcv_skb+0x130/0x360 [ 9844.567540][ T253] netlink_unicast+0x449/0x710 [ 9844.567540][ T253] netlink_sendmsg+0x723/0xbe0 [ 9844.567540][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9844.567540][ T253] ___sys_sendmsg+0xee/0x170 [ 9844.567540][ T253] __sys_sendmsg+0xcd/0x170 [ 9844.567540][ T253] do_syscall_64+0xc6/0x1e0 [ 9844.567540][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9844.567540][ T253] [ 9854.810246][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9854.810652][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9854.810652][ T253] dst_init+0x84/0x4a0 [ 9854.810652][ T253] dst_alloc+0x97/0x150 [ 9854.810652][ T253] ip6_dst_alloc+0x23/0x90 [ 9854.810652][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9854.810652][ T253] ip6_pol_route+0x56f/0x840 [ 9854.810652][ T253] fib6_rule_lookup+0x334/0x630 [ 9854.810652][ T253] ip6_route_output_flags+0x259/0x480 [ 9854.810652][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9854.810652][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9854.810652][ T253] netlink_rcv_skb+0x130/0x360 [ 9854.810652][ T253] netlink_unicast+0x449/0x710 [ 9854.810652][ T253] netlink_sendmsg+0x723/0xbe0 [ 9854.810652][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9854.810652][ T253] ___sys_sendmsg+0xee/0x170 [ 9854.810652][ T253] __sys_sendmsg+0xcd/0x170 [ 9854.810652][ T253] do_syscall_64+0xc6/0x1e0 [ 9854.810652][ T253] [ 9854.812844][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9854.812844][ T253] netdev_get_by_index+0x5e/0x80 [ 9854.812844][ T253] fib6_nh_init+0x3d8/0x1580 [ 9854.812844][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9854.812844][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9854.812844][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9854.812844][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9854.812844][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9854.812844][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9854.812844][ T253] addrconf_dad_begin+0x310/0x670 [ 9854.812844][ T253] addrconf_dad_work+0x10b/0xab0 [ 9854.812844][ T253] process_one_work+0x84d/0x18a0 [ 9854.812844][ T253] worker_thread+0x587/0xd30 [ 9854.812844][ T253] kthread+0x28a/0x350 [ 9854.812844][ T253] ret_from_fork+0x31/0x70 [ 9854.812844][ T253] ret_from_fork_asm+0x1a/0x30 [ 9854.812844][ T253] [ 9854.815007][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9854.815007][ T253] netdev_get_by_index+0x5e/0x80 [ 9854.815007][ T253] fib6_nh_init+0x3d8/0x1580 [ 9854.815007][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9854.815007][ T253] ip6_route_add+0x1c/0x140 [ 9854.815007][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9854.815007][ T253] inet6_addr_add+0x4f8/0xa40 [ 9854.815007][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9854.815007][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9854.815007][ T253] netlink_rcv_skb+0x130/0x360 [ 9854.815007][ T253] netlink_unicast+0x449/0x710 [ 9854.815007][ T253] netlink_sendmsg+0x723/0xbe0 [ 9854.815007][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9854.815007][ T253] ___sys_sendmsg+0xee/0x170 [ 9854.815007][ T253] __sys_sendmsg+0xcd/0x170 [ 9854.815007][ T253] do_syscall_64+0xc6/0x1e0 [ 9854.815007][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9854.815007][ T253] [ 9854.817249][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9854.817249][ T253] netdev_get_by_index+0x5e/0x80 [ 9854.817249][ T253] fib6_nh_init+0x3d8/0x1580 [ 9854.817249][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9854.817249][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9854.817249][ T253] ipv6_add_addr+0x411/0x2000 [ 9854.817249][ T253] inet6_addr_add+0x30e/0xa40 [ 9854.817249][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9854.817249][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9854.817249][ T253] netlink_rcv_skb+0x130/0x360 [ 9854.817249][ T253] netlink_unicast+0x449/0x710 [ 9854.817249][ T253] netlink_sendmsg+0x723/0xbe0 [ 9854.817249][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9854.817249][ T253] ___sys_sendmsg+0xee/0x170 [ 9854.817249][ T253] __sys_sendmsg+0xcd/0x170 [ 9854.817249][ T253] do_syscall_64+0xc6/0x1e0 [ 9854.817249][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9854.817249][ T253] [ 9854.819492][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9854.819492][ T253] netdev_get_by_index+0x5e/0x80 [ 9854.819492][ T253] fib6_nh_init+0x3d8/0x1580 [ 9854.819492][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9854.819492][ T253] ip6_route_add+0x1c/0x140 [ 9854.819492][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9854.819492][ T253] addrconf_add_dev+0xe2/0x170 [ 9854.819492][ T253] inet6_addr_add+0x12f/0xa40 [ 9854.819492][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9854.819492][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9854.819492][ T253] netlink_rcv_skb+0x130/0x360 [ 9854.819492][ T253] netlink_unicast+0x449/0x710 [ 9854.819492][ T253] netlink_sendmsg+0x723/0xbe0 [ 9854.819492][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9854.819492][ T253] ___sys_sendmsg+0xee/0x170 [ 9854.819492][ T253] __sys_sendmsg+0xcd/0x170 [ 9854.819492][ T253] do_syscall_64+0xc6/0x1e0 [ 9854.819492][ T253] [ 9854.821714][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9854.821714][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9854.821714][ T253] ipv6_find_idev+0x102/0x170 [ 9854.821714][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9854.821714][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9854.821714][ T253] netlink_rcv_skb+0x130/0x360 [ 9854.821714][ T253] netlink_unicast+0x449/0x710 [ 9854.821714][ T253] netlink_sendmsg+0x723/0xbe0 [ 9854.821714][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9854.821714][ T253] ___sys_sendmsg+0xee/0x170 [ 9854.821714][ T253] __sys_sendmsg+0xcd/0x170 [ 9854.821714][ T253] do_syscall_64+0xc6/0x1e0 [ 9854.821714][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9854.821714][ T253] [ 9854.823542][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9854.823542][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9854.823542][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9854.823542][ T253] ipv6_find_idev+0x102/0x170 [ 9854.823542][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9854.823542][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9854.823542][ T253] netlink_rcv_skb+0x130/0x360 [ 9854.823542][ T253] netlink_unicast+0x449/0x710 [ 9854.823542][ T253] netlink_sendmsg+0x723/0xbe0 [ 9854.823542][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9854.823542][ T253] ___sys_sendmsg+0xee/0x170 [ 9854.823542][ T253] __sys_sendmsg+0xcd/0x170 [ 9854.823542][ T253] do_syscall_64+0xc6/0x1e0 [ 9854.823542][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9854.823542][ T253] [ 9865.066318][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9865.066794][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9865.066794][ T253] dst_init+0x84/0x4a0 [ 9865.066794][ T253] dst_alloc+0x97/0x150 [ 9865.066794][ T253] ip6_dst_alloc+0x23/0x90 [ 9865.066794][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9865.066794][ T253] ip6_pol_route+0x56f/0x840 [ 9865.066794][ T253] fib6_rule_lookup+0x334/0x630 [ 9865.066794][ T253] ip6_route_output_flags+0x259/0x480 [ 9865.066794][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9865.066794][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9865.066794][ T253] netlink_rcv_skb+0x130/0x360 [ 9865.066794][ T253] netlink_unicast+0x449/0x710 [ 9865.066794][ T253] netlink_sendmsg+0x723/0xbe0 [ 9865.066794][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9865.066794][ T253] ___sys_sendmsg+0xee/0x170 [ 9865.066794][ T253] __sys_sendmsg+0xcd/0x170 [ 9865.066794][ T253] do_syscall_64+0xc6/0x1e0 [ 9865.066794][ T253] [ 9865.068989][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9865.068989][ T253] netdev_get_by_index+0x5e/0x80 [ 9865.068989][ T253] fib6_nh_init+0x3d8/0x1580 [ 9865.068989][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9865.068989][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9865.068989][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9865.068989][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9865.068989][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9865.068989][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9865.068989][ T253] addrconf_dad_begin+0x310/0x670 [ 9865.068989][ T253] addrconf_dad_work+0x10b/0xab0 [ 9865.068989][ T253] process_one_work+0x84d/0x18a0 [ 9865.068989][ T253] worker_thread+0x587/0xd30 [ 9865.068989][ T253] kthread+0x28a/0x350 [ 9865.068989][ T253] ret_from_fork+0x31/0x70 [ 9865.068989][ T253] ret_from_fork_asm+0x1a/0x30 [ 9865.068989][ T253] [ 9865.071132][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9865.071132][ T253] netdev_get_by_index+0x5e/0x80 [ 9865.071132][ T253] fib6_nh_init+0x3d8/0x1580 [ 9865.071132][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9865.071132][ T253] ip6_route_add+0x1c/0x140 [ 9865.071132][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9865.071132][ T253] inet6_addr_add+0x4f8/0xa40 [ 9865.071132][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9865.071132][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9865.071132][ T253] netlink_rcv_skb+0x130/0x360 [ 9865.071132][ T253] netlink_unicast+0x449/0x710 [ 9865.071132][ T253] netlink_sendmsg+0x723/0xbe0 [ 9865.071132][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9865.071132][ T253] ___sys_sendmsg+0xee/0x170 [ 9865.071132][ T253] __sys_sendmsg+0xcd/0x170 [ 9865.071132][ T253] do_syscall_64+0xc6/0x1e0 [ 9865.071132][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9865.071132][ T253] [ 9865.073370][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9865.073370][ T253] netdev_get_by_index+0x5e/0x80 [ 9865.073370][ T253] fib6_nh_init+0x3d8/0x1580 [ 9865.073370][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9865.073370][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9865.073370][ T253] ipv6_add_addr+0x411/0x2000 [ 9865.073370][ T253] inet6_addr_add+0x30e/0xa40 [ 9865.073370][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9865.073370][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9865.073370][ T253] netlink_rcv_skb+0x130/0x360 [ 9865.073370][ T253] netlink_unicast+0x449/0x710 [ 9865.073370][ T253] netlink_sendmsg+0x723/0xbe0 [ 9865.073370][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9865.073370][ T253] ___sys_sendmsg+0xee/0x170 [ 9865.073370][ T253] __sys_sendmsg+0xcd/0x170 [ 9865.073370][ T253] do_syscall_64+0xc6/0x1e0 [ 9865.073370][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9865.073370][ T253] [ 9865.075626][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9865.075626][ T253] netdev_get_by_index+0x5e/0x80 [ 9865.075626][ T253] fib6_nh_init+0x3d8/0x1580 [ 9865.075626][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9865.075626][ T253] ip6_route_add+0x1c/0x140 [ 9865.075626][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9865.075626][ T253] addrconf_add_dev+0xe2/0x170 [ 9865.075626][ T253] inet6_addr_add+0x12f/0xa40 [ 9865.075626][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9865.075626][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9865.075626][ T253] netlink_rcv_skb+0x130/0x360 [ 9865.075626][ T253] netlink_unicast+0x449/0x710 [ 9865.075626][ T253] netlink_sendmsg+0x723/0xbe0 [ 9865.075626][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9865.075626][ T253] ___sys_sendmsg+0xee/0x170 [ 9865.075626][ T253] __sys_sendmsg+0xcd/0x170 [ 9865.075626][ T253] do_syscall_64+0xc6/0x1e0 [ 9865.075626][ T253] [ 9865.077843][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9865.077843][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9865.077843][ T253] ipv6_find_idev+0x102/0x170 [ 9865.077843][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9865.077843][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9865.077843][ T253] netlink_rcv_skb+0x130/0x360 [ 9865.077843][ T253] netlink_unicast+0x449/0x710 [ 9865.077843][ T253] netlink_sendmsg+0x723/0xbe0 [ 9865.077843][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9865.077843][ T253] ___sys_sendmsg+0xee/0x170 [ 9865.077843][ T253] __sys_sendmsg+0xcd/0x170 [ 9865.077843][ T253] do_syscall_64+0xc6/0x1e0 [ 9865.077843][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9865.077843][ T253] [ 9865.079574][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9865.079574][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9865.079574][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9865.079574][ T253] ipv6_find_idev+0x102/0x170 [ 9865.079574][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9865.079574][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9865.079574][ T253] netlink_rcv_skb+0x130/0x360 [ 9865.079574][ T253] netlink_unicast+0x449/0x710 [ 9865.079574][ T253] netlink_sendmsg+0x723/0xbe0 [ 9865.079574][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9865.079574][ T253] ___sys_sendmsg+0xee/0x170 [ 9865.079574][ T253] __sys_sendmsg+0xcd/0x170 [ 9865.079574][ T253] do_syscall_64+0xc6/0x1e0 [ 9865.079574][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9865.079574][ T253] [ 9875.298302][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9875.298772][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9875.298772][ T253] dst_init+0x84/0x4a0 [ 9875.298772][ T253] dst_alloc+0x97/0x150 [ 9875.298772][ T253] ip6_dst_alloc+0x23/0x90 [ 9875.298772][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9875.298772][ T253] ip6_pol_route+0x56f/0x840 [ 9875.298772][ T253] fib6_rule_lookup+0x334/0x630 [ 9875.298772][ T253] ip6_route_output_flags+0x259/0x480 [ 9875.298772][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9875.298772][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9875.298772][ T253] netlink_rcv_skb+0x130/0x360 [ 9875.298772][ T253] netlink_unicast+0x449/0x710 [ 9875.298772][ T253] netlink_sendmsg+0x723/0xbe0 [ 9875.298772][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9875.298772][ T253] ___sys_sendmsg+0xee/0x170 [ 9875.298772][ T253] __sys_sendmsg+0xcd/0x170 [ 9875.298772][ T253] do_syscall_64+0xc6/0x1e0 [ 9875.298772][ T253] [ 9875.300970][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9875.300970][ T253] netdev_get_by_index+0x5e/0x80 [ 9875.300970][ T253] fib6_nh_init+0x3d8/0x1580 [ 9875.300970][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9875.300970][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9875.300970][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9875.300970][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9875.300970][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9875.300970][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9875.300970][ T253] addrconf_dad_begin+0x310/0x670 [ 9875.300970][ T253] addrconf_dad_work+0x10b/0xab0 [ 9875.300970][ T253] process_one_work+0x84d/0x18a0 [ 9875.300970][ T253] worker_thread+0x587/0xd30 [ 9875.300970][ T253] kthread+0x28a/0x350 [ 9875.300970][ T253] ret_from_fork+0x31/0x70 [ 9875.300970][ T253] ret_from_fork_asm+0x1a/0x30 [ 9875.300970][ T253] [ 9875.303122][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9875.303122][ T253] netdev_get_by_index+0x5e/0x80 [ 9875.303122][ T253] fib6_nh_init+0x3d8/0x1580 [ 9875.303122][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9875.303122][ T253] ip6_route_add+0x1c/0x140 [ 9875.303122][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9875.303122][ T253] inet6_addr_add+0x4f8/0xa40 [ 9875.303122][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9875.303122][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9875.303122][ T253] netlink_rcv_skb+0x130/0x360 [ 9875.303122][ T253] netlink_unicast+0x449/0x710 [ 9875.303122][ T253] netlink_sendmsg+0x723/0xbe0 [ 9875.303122][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9875.303122][ T253] ___sys_sendmsg+0xee/0x170 [ 9875.303122][ T253] __sys_sendmsg+0xcd/0x170 [ 9875.303122][ T253] do_syscall_64+0xc6/0x1e0 [ 9875.303122][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9875.303122][ T253] [ 9875.305390][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9875.305390][ T253] netdev_get_by_index+0x5e/0x80 [ 9875.305390][ T253] fib6_nh_init+0x3d8/0x1580 [ 9875.305390][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9875.305390][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9875.305390][ T253] ipv6_add_addr+0x411/0x2000 [ 9875.305390][ T253] inet6_addr_add+0x30e/0xa40 [ 9875.305390][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9875.305390][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9875.305390][ T253] netlink_rcv_skb+0x130/0x360 [ 9875.305390][ T253] netlink_unicast+0x449/0x710 [ 9875.305390][ T253] netlink_sendmsg+0x723/0xbe0 [ 9875.305390][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9875.305390][ T253] ___sys_sendmsg+0xee/0x170 [ 9875.305390][ T253] __sys_sendmsg+0xcd/0x170 [ 9875.305390][ T253] do_syscall_64+0xc6/0x1e0 [ 9875.305390][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9875.305390][ T253] [ 9875.307638][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9875.307638][ T253] netdev_get_by_index+0x5e/0x80 [ 9875.307638][ T253] fib6_nh_init+0x3d8/0x1580 [ 9875.307638][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9875.307638][ T253] ip6_route_add+0x1c/0x140 [ 9875.307638][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9875.307638][ T253] addrconf_add_dev+0xe2/0x170 [ 9875.307638][ T253] inet6_addr_add+0x12f/0xa40 [ 9875.307638][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9875.307638][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9875.307638][ T253] netlink_rcv_skb+0x130/0x360 [ 9875.307638][ T253] netlink_unicast+0x449/0x710 [ 9875.307638][ T253] netlink_sendmsg+0x723/0xbe0 [ 9875.307638][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9875.307638][ T253] ___sys_sendmsg+0xee/0x170 [ 9875.307638][ T253] __sys_sendmsg+0xcd/0x170 [ 9875.307638][ T253] do_syscall_64+0xc6/0x1e0 [ 9875.307638][ T253] [ 9875.309853][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9875.309853][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9875.309853][ T253] ipv6_find_idev+0x102/0x170 [ 9875.309853][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9875.309853][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9875.309853][ T253] netlink_rcv_skb+0x130/0x360 [ 9875.309853][ T253] netlink_unicast+0x449/0x710 [ 9875.309853][ T253] netlink_sendmsg+0x723/0xbe0 [ 9875.309853][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9875.309853][ T253] ___sys_sendmsg+0xee/0x170 [ 9875.309853][ T253] __sys_sendmsg+0xcd/0x170 [ 9875.309853][ T253] do_syscall_64+0xc6/0x1e0 [ 9875.309853][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9875.309853][ T253] [ 9875.311584][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9875.311584][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9875.311584][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9875.311584][ T253] ipv6_find_idev+0x102/0x170 [ 9875.311584][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9875.311584][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9875.311584][ T253] netlink_rcv_skb+0x130/0x360 [ 9875.311584][ T253] netlink_unicast+0x449/0x710 [ 9875.311584][ T253] netlink_sendmsg+0x723/0xbe0 [ 9875.311584][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9875.311584][ T253] ___sys_sendmsg+0xee/0x170 [ 9875.311584][ T253] __sys_sendmsg+0xcd/0x170 [ 9875.311584][ T253] do_syscall_64+0xc6/0x1e0 [ 9875.311584][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9875.311584][ T253] [ 9885.554300][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9885.554786][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9885.554786][ T253] dst_init+0x84/0x4a0 [ 9885.554786][ T253] dst_alloc+0x97/0x150 [ 9885.554786][ T253] ip6_dst_alloc+0x23/0x90 [ 9885.554786][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9885.554786][ T253] ip6_pol_route+0x56f/0x840 [ 9885.554786][ T253] fib6_rule_lookup+0x334/0x630 [ 9885.554786][ T253] ip6_route_output_flags+0x259/0x480 [ 9885.554786][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9885.554786][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9885.554786][ T253] netlink_rcv_skb+0x130/0x360 [ 9885.554786][ T253] netlink_unicast+0x449/0x710 [ 9885.554786][ T253] netlink_sendmsg+0x723/0xbe0 [ 9885.554786][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9885.554786][ T253] ___sys_sendmsg+0xee/0x170 [ 9885.554786][ T253] __sys_sendmsg+0xcd/0x170 [ 9885.554786][ T253] do_syscall_64+0xc6/0x1e0 [ 9885.554786][ T253] [ 9885.556971][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9885.556971][ T253] netdev_get_by_index+0x5e/0x80 [ 9885.556971][ T253] fib6_nh_init+0x3d8/0x1580 [ 9885.556971][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9885.556971][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9885.556971][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9885.556971][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9885.556971][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9885.556971][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9885.556971][ T253] addrconf_dad_begin+0x310/0x670 [ 9885.556971][ T253] addrconf_dad_work+0x10b/0xab0 [ 9885.556971][ T253] process_one_work+0x84d/0x18a0 [ 9885.556971][ T253] worker_thread+0x587/0xd30 [ 9885.556971][ T253] kthread+0x28a/0x350 [ 9885.556971][ T253] ret_from_fork+0x31/0x70 [ 9885.556971][ T253] ret_from_fork_asm+0x1a/0x30 [ 9885.556971][ T253] [ 9885.559114][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9885.559114][ T253] netdev_get_by_index+0x5e/0x80 [ 9885.559114][ T253] fib6_nh_init+0x3d8/0x1580 [ 9885.559114][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9885.559114][ T253] ip6_route_add+0x1c/0x140 [ 9885.559114][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9885.559114][ T253] inet6_addr_add+0x4f8/0xa40 [ 9885.559114][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9885.559114][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9885.559114][ T253] netlink_rcv_skb+0x130/0x360 [ 9885.559114][ T253] netlink_unicast+0x449/0x710 [ 9885.559114][ T253] netlink_sendmsg+0x723/0xbe0 [ 9885.559114][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9885.559114][ T253] ___sys_sendmsg+0xee/0x170 [ 9885.559114][ T253] __sys_sendmsg+0xcd/0x170 [ 9885.559114][ T253] do_syscall_64+0xc6/0x1e0 [ 9885.559114][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9885.559114][ T253] [ 9885.561362][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9885.561362][ T253] netdev_get_by_index+0x5e/0x80 [ 9885.561362][ T253] fib6_nh_init+0x3d8/0x1580 [ 9885.561362][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9885.561362][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9885.561362][ T253] ipv6_add_addr+0x411/0x2000 [ 9885.561362][ T253] inet6_addr_add+0x30e/0xa40 [ 9885.561362][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9885.561362][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9885.561362][ T253] netlink_rcv_skb+0x130/0x360 [ 9885.561362][ T253] netlink_unicast+0x449/0x710 [ 9885.561362][ T253] netlink_sendmsg+0x723/0xbe0 [ 9885.561362][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9885.561362][ T253] ___sys_sendmsg+0xee/0x170 [ 9885.561362][ T253] __sys_sendmsg+0xcd/0x170 [ 9885.561362][ T253] do_syscall_64+0xc6/0x1e0 [ 9885.561362][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9885.561362][ T253] [ 9885.563608][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9885.563608][ T253] netdev_get_by_index+0x5e/0x80 [ 9885.563608][ T253] fib6_nh_init+0x3d8/0x1580 [ 9885.563608][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9885.563608][ T253] ip6_route_add+0x1c/0x140 [ 9885.563608][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9885.563608][ T253] addrconf_add_dev+0xe2/0x170 [ 9885.563608][ T253] inet6_addr_add+0x12f/0xa40 [ 9885.563608][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9885.563608][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9885.563608][ T253] netlink_rcv_skb+0x130/0x360 [ 9885.563608][ T253] netlink_unicast+0x449/0x710 [ 9885.563608][ T253] netlink_sendmsg+0x723/0xbe0 [ 9885.563608][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9885.563608][ T253] ___sys_sendmsg+0xee/0x170 [ 9885.563608][ T253] __sys_sendmsg+0xcd/0x170 [ 9885.563608][ T253] do_syscall_64+0xc6/0x1e0 [ 9885.563608][ T253] [ 9885.565814][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9885.565814][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9885.565814][ T253] ipv6_find_idev+0x102/0x170 [ 9885.565814][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9885.565814][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9885.565814][ T253] netlink_rcv_skb+0x130/0x360 [ 9885.565814][ T253] netlink_unicast+0x449/0x710 [ 9885.565814][ T253] netlink_sendmsg+0x723/0xbe0 [ 9885.565814][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9885.565814][ T253] ___sys_sendmsg+0xee/0x170 [ 9885.565814][ T253] __sys_sendmsg+0xcd/0x170 [ 9885.565814][ T253] do_syscall_64+0xc6/0x1e0 [ 9885.565814][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9885.565814][ T253] [ 9885.567538][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9885.567538][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9885.567538][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9885.567538][ T253] ipv6_find_idev+0x102/0x170 [ 9885.567538][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9885.567538][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9885.567538][ T253] netlink_rcv_skb+0x130/0x360 [ 9885.567538][ T253] netlink_unicast+0x449/0x710 [ 9885.567538][ T253] netlink_sendmsg+0x723/0xbe0 [ 9885.567538][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9885.567538][ T253] ___sys_sendmsg+0xee/0x170 [ 9885.567538][ T253] __sys_sendmsg+0xcd/0x170 [ 9885.567538][ T253] do_syscall_64+0xc6/0x1e0 [ 9885.567538][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9885.567538][ T253] [ 9895.810299][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9895.810777][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9895.810777][ T253] dst_init+0x84/0x4a0 [ 9895.810777][ T253] dst_alloc+0x97/0x150 [ 9895.810777][ T253] ip6_dst_alloc+0x23/0x90 [ 9895.810777][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9895.810777][ T253] ip6_pol_route+0x56f/0x840 [ 9895.810777][ T253] fib6_rule_lookup+0x334/0x630 [ 9895.810777][ T253] ip6_route_output_flags+0x259/0x480 [ 9895.810777][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9895.810777][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9895.810777][ T253] netlink_rcv_skb+0x130/0x360 [ 9895.810777][ T253] netlink_unicast+0x449/0x710 [ 9895.810777][ T253] netlink_sendmsg+0x723/0xbe0 [ 9895.810777][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9895.810777][ T253] ___sys_sendmsg+0xee/0x170 [ 9895.810777][ T253] __sys_sendmsg+0xcd/0x170 [ 9895.810777][ T253] do_syscall_64+0xc6/0x1e0 [ 9895.810777][ T253] [ 9895.812978][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9895.812978][ T253] netdev_get_by_index+0x5e/0x80 [ 9895.812978][ T253] fib6_nh_init+0x3d8/0x1580 [ 9895.812978][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9895.812978][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9895.812978][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9895.812978][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9895.812978][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9895.812978][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9895.812978][ T253] addrconf_dad_begin+0x310/0x670 [ 9895.812978][ T253] addrconf_dad_work+0x10b/0xab0 [ 9895.812978][ T253] process_one_work+0x84d/0x18a0 [ 9895.812978][ T253] worker_thread+0x587/0xd30 [ 9895.812978][ T253] kthread+0x28a/0x350 [ 9895.812978][ T253] ret_from_fork+0x31/0x70 [ 9895.812978][ T253] ret_from_fork_asm+0x1a/0x30 [ 9895.812978][ T253] [ 9895.815127][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9895.815127][ T253] netdev_get_by_index+0x5e/0x80 [ 9895.815127][ T253] fib6_nh_init+0x3d8/0x1580 [ 9895.815127][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9895.815127][ T253] ip6_route_add+0x1c/0x140 [ 9895.815127][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9895.815127][ T253] inet6_addr_add+0x4f8/0xa40 [ 9895.815127][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9895.815127][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9895.815127][ T253] netlink_rcv_skb+0x130/0x360 [ 9895.815127][ T253] netlink_unicast+0x449/0x710 [ 9895.815127][ T253] netlink_sendmsg+0x723/0xbe0 [ 9895.815127][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9895.815127][ T253] ___sys_sendmsg+0xee/0x170 [ 9895.815127][ T253] __sys_sendmsg+0xcd/0x170 [ 9895.815127][ T253] do_syscall_64+0xc6/0x1e0 [ 9895.815127][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9895.815127][ T253] [ 9895.817368][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9895.817368][ T253] netdev_get_by_index+0x5e/0x80 [ 9895.817368][ T253] fib6_nh_init+0x3d8/0x1580 [ 9895.817368][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9895.817368][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9895.817368][ T253] ipv6_add_addr+0x411/0x2000 [ 9895.817368][ T253] inet6_addr_add+0x30e/0xa40 [ 9895.817368][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9895.817368][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9895.817368][ T253] netlink_rcv_skb+0x130/0x360 [ 9895.817368][ T253] netlink_unicast+0x449/0x710 [ 9895.817368][ T253] netlink_sendmsg+0x723/0xbe0 [ 9895.817368][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9895.817368][ T253] ___sys_sendmsg+0xee/0x170 [ 9895.817368][ T253] __sys_sendmsg+0xcd/0x170 [ 9895.817368][ T253] do_syscall_64+0xc6/0x1e0 [ 9895.817368][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9895.817368][ T253] [ 9895.819606][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9895.819606][ T253] netdev_get_by_index+0x5e/0x80 [ 9895.819606][ T253] fib6_nh_init+0x3d8/0x1580 [ 9895.819606][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9895.819606][ T253] ip6_route_add+0x1c/0x140 [ 9895.819606][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9895.819606][ T253] addrconf_add_dev+0xe2/0x170 [ 9895.819606][ T253] inet6_addr_add+0x12f/0xa40 [ 9895.819606][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9895.819606][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9895.819606][ T253] netlink_rcv_skb+0x130/0x360 [ 9895.819606][ T253] netlink_unicast+0x449/0x710 [ 9895.819606][ T253] netlink_sendmsg+0x723/0xbe0 [ 9895.819606][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9895.819606][ T253] ___sys_sendmsg+0xee/0x170 [ 9895.819606][ T253] __sys_sendmsg+0xcd/0x170 [ 9895.819606][ T253] do_syscall_64+0xc6/0x1e0 [ 9895.819606][ T253] [ 9895.821801][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9895.821801][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9895.821801][ T253] ipv6_find_idev+0x102/0x170 [ 9895.821801][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9895.821801][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9895.821801][ T253] netlink_rcv_skb+0x130/0x360 [ 9895.821801][ T253] netlink_unicast+0x449/0x710 [ 9895.821801][ T253] netlink_sendmsg+0x723/0xbe0 [ 9895.821801][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9895.821801][ T253] ___sys_sendmsg+0xee/0x170 [ 9895.821801][ T253] __sys_sendmsg+0xcd/0x170 [ 9895.821801][ T253] do_syscall_64+0xc6/0x1e0 [ 9895.821801][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9895.821801][ T253] [ 9895.823518][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9895.823518][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9895.823518][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9895.823518][ T253] ipv6_find_idev+0x102/0x170 [ 9895.823518][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9895.823518][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9895.823518][ T253] netlink_rcv_skb+0x130/0x360 [ 9895.823518][ T253] netlink_unicast+0x449/0x710 [ 9895.823518][ T253] netlink_sendmsg+0x723/0xbe0 [ 9895.823518][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9895.823518][ T253] ___sys_sendmsg+0xee/0x170 [ 9895.823518][ T253] __sys_sendmsg+0xcd/0x170 [ 9895.823518][ T253] do_syscall_64+0xc6/0x1e0 [ 9895.823518][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9895.823518][ T253] [ 9905.858292][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9905.858769][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9905.858769][ T253] dst_init+0x84/0x4a0 [ 9905.858769][ T253] dst_alloc+0x97/0x150 [ 9905.858769][ T253] ip6_dst_alloc+0x23/0x90 [ 9905.858769][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9905.858769][ T253] ip6_pol_route+0x56f/0x840 [ 9905.858769][ T253] fib6_rule_lookup+0x334/0x630 [ 9905.858769][ T253] ip6_route_output_flags+0x259/0x480 [ 9905.858769][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9905.858769][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9905.858769][ T253] netlink_rcv_skb+0x130/0x360 [ 9905.858769][ T253] netlink_unicast+0x449/0x710 [ 9905.858769][ T253] netlink_sendmsg+0x723/0xbe0 [ 9905.858769][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9905.858769][ T253] ___sys_sendmsg+0xee/0x170 [ 9905.858769][ T253] __sys_sendmsg+0xcd/0x170 [ 9905.858769][ T253] do_syscall_64+0xc6/0x1e0 [ 9905.858769][ T253] [ 9905.860948][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9905.860948][ T253] netdev_get_by_index+0x5e/0x80 [ 9905.860948][ T253] fib6_nh_init+0x3d8/0x1580 [ 9905.860948][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9905.860948][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9905.860948][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9905.860948][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9905.860948][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9905.860948][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9905.860948][ T253] addrconf_dad_begin+0x310/0x670 [ 9905.860948][ T253] addrconf_dad_work+0x10b/0xab0 [ 9905.860948][ T253] process_one_work+0x84d/0x18a0 [ 9905.860948][ T253] worker_thread+0x587/0xd30 [ 9905.860948][ T253] kthread+0x28a/0x350 [ 9905.860948][ T253] ret_from_fork+0x31/0x70 [ 9905.860948][ T253] ret_from_fork_asm+0x1a/0x30 [ 9905.860948][ T253] [ 9905.863093][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9905.863093][ T253] netdev_get_by_index+0x5e/0x80 [ 9905.863093][ T253] fib6_nh_init+0x3d8/0x1580 [ 9905.863093][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9905.863093][ T253] ip6_route_add+0x1c/0x140 [ 9905.863093][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9905.863093][ T253] inet6_addr_add+0x4f8/0xa40 [ 9905.863093][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9905.863093][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9905.863093][ T253] netlink_rcv_skb+0x130/0x360 [ 9905.863093][ T253] netlink_unicast+0x449/0x710 [ 9905.863093][ T253] netlink_sendmsg+0x723/0xbe0 [ 9905.863093][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9905.863093][ T253] ___sys_sendmsg+0xee/0x170 [ 9905.863093][ T253] __sys_sendmsg+0xcd/0x170 [ 9905.863093][ T253] do_syscall_64+0xc6/0x1e0 [ 9905.863093][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9905.863093][ T253] [ 9905.865338][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9905.865338][ T253] netdev_get_by_index+0x5e/0x80 [ 9905.865338][ T253] fib6_nh_init+0x3d8/0x1580 [ 9905.865338][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9905.865338][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9905.865338][ T253] ipv6_add_addr+0x411/0x2000 [ 9905.865338][ T253] inet6_addr_add+0x30e/0xa40 [ 9905.865338][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9905.865338][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9905.865338][ T253] netlink_rcv_skb+0x130/0x360 [ 9905.865338][ T253] netlink_unicast+0x449/0x710 [ 9905.865338][ T253] netlink_sendmsg+0x723/0xbe0 [ 9905.865338][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9905.865338][ T253] ___sys_sendmsg+0xee/0x170 [ 9905.865338][ T253] __sys_sendmsg+0xcd/0x170 [ 9905.865338][ T253] do_syscall_64+0xc6/0x1e0 [ 9905.865338][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9905.865338][ T253] [ 9905.867575][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9905.867575][ T253] netdev_get_by_index+0x5e/0x80 [ 9905.867575][ T253] fib6_nh_init+0x3d8/0x1580 [ 9905.867575][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9905.867575][ T253] ip6_route_add+0x1c/0x140 [ 9905.867575][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9905.867575][ T253] addrconf_add_dev+0xe2/0x170 [ 9905.867575][ T253] inet6_addr_add+0x12f/0xa40 [ 9905.867575][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9905.867575][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9905.867575][ T253] netlink_rcv_skb+0x130/0x360 [ 9905.867575][ T253] netlink_unicast+0x449/0x710 [ 9905.867575][ T253] netlink_sendmsg+0x723/0xbe0 [ 9905.867575][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9905.867575][ T253] ___sys_sendmsg+0xee/0x170 [ 9905.867575][ T253] __sys_sendmsg+0xcd/0x170 [ 9905.867575][ T253] do_syscall_64+0xc6/0x1e0 [ 9905.867575][ T253] [ 9905.869770][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9905.869770][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9905.869770][ T253] ipv6_find_idev+0x102/0x170 [ 9905.869770][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9905.869770][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9905.869770][ T253] netlink_rcv_skb+0x130/0x360 [ 9905.869770][ T253] netlink_unicast+0x449/0x710 [ 9905.869770][ T253] netlink_sendmsg+0x723/0xbe0 [ 9905.869770][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9905.869770][ T253] ___sys_sendmsg+0xee/0x170 [ 9905.869770][ T253] __sys_sendmsg+0xcd/0x170 [ 9905.869770][ T253] do_syscall_64+0xc6/0x1e0 [ 9905.869770][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9905.869770][ T253] [ 9905.871499][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9905.871499][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9905.871499][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9905.871499][ T253] ipv6_find_idev+0x102/0x170 [ 9905.871499][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9905.871499][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9905.871499][ T253] netlink_rcv_skb+0x130/0x360 [ 9905.871499][ T253] netlink_unicast+0x449/0x710 [ 9905.871499][ T253] netlink_sendmsg+0x723/0xbe0 [ 9905.871499][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9905.871499][ T253] ___sys_sendmsg+0xee/0x170 [ 9905.871499][ T253] __sys_sendmsg+0xcd/0x170 [ 9905.871499][ T253] do_syscall_64+0xc6/0x1e0 [ 9905.871499][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9905.871499][ T253] [ 9915.874292][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9915.874764][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9915.874764][ T253] dst_init+0x84/0x4a0 [ 9915.874764][ T253] dst_alloc+0x97/0x150 [ 9915.874764][ T253] ip6_dst_alloc+0x23/0x90 [ 9915.874764][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9915.874764][ T253] ip6_pol_route+0x56f/0x840 [ 9915.874764][ T253] fib6_rule_lookup+0x334/0x630 [ 9915.874764][ T253] ip6_route_output_flags+0x259/0x480 [ 9915.874764][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9915.874764][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9915.874764][ T253] netlink_rcv_skb+0x130/0x360 [ 9915.874764][ T253] netlink_unicast+0x449/0x710 [ 9915.874764][ T253] netlink_sendmsg+0x723/0xbe0 [ 9915.874764][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9915.874764][ T253] ___sys_sendmsg+0xee/0x170 [ 9915.874764][ T253] __sys_sendmsg+0xcd/0x170 [ 9915.874764][ T253] do_syscall_64+0xc6/0x1e0 [ 9915.874764][ T253] [ 9915.876958][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9915.876958][ T253] netdev_get_by_index+0x5e/0x80 [ 9915.876958][ T253] fib6_nh_init+0x3d8/0x1580 [ 9915.876958][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9915.876958][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9915.876958][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9915.876958][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9915.876958][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9915.876958][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9915.876958][ T253] addrconf_dad_begin+0x310/0x670 [ 9915.876958][ T253] addrconf_dad_work+0x10b/0xab0 [ 9915.876958][ T253] process_one_work+0x84d/0x18a0 [ 9915.876958][ T253] worker_thread+0x587/0xd30 [ 9915.876958][ T253] kthread+0x28a/0x350 [ 9915.876958][ T253] ret_from_fork+0x31/0x70 [ 9915.876958][ T253] ret_from_fork_asm+0x1a/0x30 [ 9915.876958][ T253] [ 9915.879135][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9915.879135][ T253] netdev_get_by_index+0x5e/0x80 [ 9915.879135][ T253] fib6_nh_init+0x3d8/0x1580 [ 9915.879135][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9915.879135][ T253] ip6_route_add+0x1c/0x140 [ 9915.879135][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9915.879135][ T253] inet6_addr_add+0x4f8/0xa40 [ 9915.879135][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9915.879135][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9915.879135][ T253] netlink_rcv_skb+0x130/0x360 [ 9915.879135][ T253] netlink_unicast+0x449/0x710 [ 9915.879135][ T253] netlink_sendmsg+0x723/0xbe0 [ 9915.879135][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9915.879135][ T253] ___sys_sendmsg+0xee/0x170 [ 9915.879135][ T253] __sys_sendmsg+0xcd/0x170 [ 9915.879135][ T253] do_syscall_64+0xc6/0x1e0 [ 9915.879135][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9915.879135][ T253] [ 9915.881416][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9915.881416][ T253] netdev_get_by_index+0x5e/0x80 [ 9915.881416][ T253] fib6_nh_init+0x3d8/0x1580 [ 9915.881416][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9915.881416][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9915.881416][ T253] ipv6_add_addr+0x411/0x2000 [ 9915.881416][ T253] inet6_addr_add+0x30e/0xa40 [ 9915.881416][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9915.881416][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9915.881416][ T253] netlink_rcv_skb+0x130/0x360 [ 9915.881416][ T253] netlink_unicast+0x449/0x710 [ 9915.881416][ T253] netlink_sendmsg+0x723/0xbe0 [ 9915.881416][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9915.881416][ T253] ___sys_sendmsg+0xee/0x170 [ 9915.881416][ T253] __sys_sendmsg+0xcd/0x170 [ 9915.881416][ T253] do_syscall_64+0xc6/0x1e0 [ 9915.881416][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9915.881416][ T253] [ 9915.883664][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9915.883664][ T253] netdev_get_by_index+0x5e/0x80 [ 9915.883664][ T253] fib6_nh_init+0x3d8/0x1580 [ 9915.883664][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9915.883664][ T253] ip6_route_add+0x1c/0x140 [ 9915.883664][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9915.883664][ T253] addrconf_add_dev+0xe2/0x170 [ 9915.883664][ T253] inet6_addr_add+0x12f/0xa40 [ 9915.883664][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9915.883664][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9915.883664][ T253] netlink_rcv_skb+0x130/0x360 [ 9915.883664][ T253] netlink_unicast+0x449/0x710 [ 9915.883664][ T253] netlink_sendmsg+0x723/0xbe0 [ 9915.883664][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9915.883664][ T253] ___sys_sendmsg+0xee/0x170 [ 9915.883664][ T253] __sys_sendmsg+0xcd/0x170 [ 9915.883664][ T253] do_syscall_64+0xc6/0x1e0 [ 9915.883664][ T253] [ 9915.885878][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9915.885878][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9915.885878][ T253] ipv6_find_idev+0x102/0x170 [ 9915.885878][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9915.885878][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9915.885878][ T253] netlink_rcv_skb+0x130/0x360 [ 9915.885878][ T253] netlink_unicast+0x449/0x710 [ 9915.885878][ T253] netlink_sendmsg+0x723/0xbe0 [ 9915.885878][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9915.885878][ T253] ___sys_sendmsg+0xee/0x170 [ 9915.885878][ T253] __sys_sendmsg+0xcd/0x170 [ 9915.885878][ T253] do_syscall_64+0xc6/0x1e0 [ 9915.885878][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9915.885878][ T253] [ 9915.887605][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9915.887605][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9915.887605][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9915.887605][ T253] ipv6_find_idev+0x102/0x170 [ 9915.887605][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9915.887605][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9915.887605][ T253] netlink_rcv_skb+0x130/0x360 [ 9915.887605][ T253] netlink_unicast+0x449/0x710 [ 9915.887605][ T253] netlink_sendmsg+0x723/0xbe0 [ 9915.887605][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9915.887605][ T253] ___sys_sendmsg+0xee/0x170 [ 9915.887605][ T253] __sys_sendmsg+0xcd/0x170 [ 9915.887605][ T253] do_syscall_64+0xc6/0x1e0 [ 9915.887605][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9915.887605][ T253] [ 9926.138293][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9926.138713][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9926.138713][ T253] dst_init+0x84/0x4a0 [ 9926.138713][ T253] dst_alloc+0x97/0x150 [ 9926.138713][ T253] ip6_dst_alloc+0x23/0x90 [ 9926.138713][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9926.138713][ T253] ip6_pol_route+0x56f/0x840 [ 9926.138713][ T253] fib6_rule_lookup+0x334/0x630 [ 9926.138713][ T253] ip6_route_output_flags+0x259/0x480 [ 9926.138713][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9926.138713][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9926.138713][ T253] netlink_rcv_skb+0x130/0x360 [ 9926.138713][ T253] netlink_unicast+0x449/0x710 [ 9926.138713][ T253] netlink_sendmsg+0x723/0xbe0 [ 9926.138713][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9926.138713][ T253] ___sys_sendmsg+0xee/0x170 [ 9926.138713][ T253] __sys_sendmsg+0xcd/0x170 [ 9926.138713][ T253] do_syscall_64+0xc6/0x1e0 [ 9926.138713][ T253] [ 9926.140916][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9926.140916][ T253] netdev_get_by_index+0x5e/0x80 [ 9926.140916][ T253] fib6_nh_init+0x3d8/0x1580 [ 9926.140916][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9926.140916][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9926.140916][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9926.140916][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9926.140916][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9926.140916][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9926.140916][ T253] addrconf_dad_begin+0x310/0x670 [ 9926.140916][ T253] addrconf_dad_work+0x10b/0xab0 [ 9926.140916][ T253] process_one_work+0x84d/0x18a0 [ 9926.140916][ T253] worker_thread+0x587/0xd30 [ 9926.140916][ T253] kthread+0x28a/0x350 [ 9926.140916][ T253] ret_from_fork+0x31/0x70 [ 9926.140916][ T253] ret_from_fork_asm+0x1a/0x30 [ 9926.140916][ T253] [ 9926.143060][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9926.143060][ T253] netdev_get_by_index+0x5e/0x80 [ 9926.143060][ T253] fib6_nh_init+0x3d8/0x1580 [ 9926.143060][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9926.143060][ T253] ip6_route_add+0x1c/0x140 [ 9926.143060][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9926.143060][ T253] inet6_addr_add+0x4f8/0xa40 [ 9926.143060][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9926.143060][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9926.143060][ T253] netlink_rcv_skb+0x130/0x360 [ 9926.143060][ T253] netlink_unicast+0x449/0x710 [ 9926.143060][ T253] netlink_sendmsg+0x723/0xbe0 [ 9926.143060][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9926.143060][ T253] ___sys_sendmsg+0xee/0x170 [ 9926.143060][ T253] __sys_sendmsg+0xcd/0x170 [ 9926.143060][ T253] do_syscall_64+0xc6/0x1e0 [ 9926.143060][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9926.143060][ T253] [ 9926.145319][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9926.145319][ T253] netdev_get_by_index+0x5e/0x80 [ 9926.145319][ T253] fib6_nh_init+0x3d8/0x1580 [ 9926.145319][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9926.145319][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9926.145319][ T253] ipv6_add_addr+0x411/0x2000 [ 9926.145319][ T253] inet6_addr_add+0x30e/0xa40 [ 9926.145319][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9926.145319][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9926.145319][ T253] netlink_rcv_skb+0x130/0x360 [ 9926.145319][ T253] netlink_unicast+0x449/0x710 [ 9926.145319][ T253] netlink_sendmsg+0x723/0xbe0 [ 9926.145319][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9926.145319][ T253] ___sys_sendmsg+0xee/0x170 [ 9926.145319][ T253] __sys_sendmsg+0xcd/0x170 [ 9926.145319][ T253] do_syscall_64+0xc6/0x1e0 [ 9926.145319][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9926.145319][ T253] [ 9926.147558][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9926.147558][ T253] netdev_get_by_index+0x5e/0x80 [ 9926.147558][ T253] fib6_nh_init+0x3d8/0x1580 [ 9926.147558][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9926.147558][ T253] ip6_route_add+0x1c/0x140 [ 9926.147558][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9926.147558][ T253] addrconf_add_dev+0xe2/0x170 [ 9926.147558][ T253] inet6_addr_add+0x12f/0xa40 [ 9926.147558][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9926.147558][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9926.147558][ T253] netlink_rcv_skb+0x130/0x360 [ 9926.147558][ T253] netlink_unicast+0x449/0x710 [ 9926.147558][ T253] netlink_sendmsg+0x723/0xbe0 [ 9926.147558][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9926.147558][ T253] ___sys_sendmsg+0xee/0x170 [ 9926.147558][ T253] __sys_sendmsg+0xcd/0x170 [ 9926.147558][ T253] do_syscall_64+0xc6/0x1e0 [ 9926.147558][ T253] [ 9926.149755][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9926.149755][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9926.149755][ T253] ipv6_find_idev+0x102/0x170 [ 9926.149755][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9926.149755][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9926.149755][ T253] netlink_rcv_skb+0x130/0x360 [ 9926.149755][ T253] netlink_unicast+0x449/0x710 [ 9926.149755][ T253] netlink_sendmsg+0x723/0xbe0 [ 9926.149755][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9926.149755][ T253] ___sys_sendmsg+0xee/0x170 [ 9926.149755][ T253] __sys_sendmsg+0xcd/0x170 [ 9926.149755][ T253] do_syscall_64+0xc6/0x1e0 [ 9926.149755][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9926.149755][ T253] [ 9926.151479][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9926.151479][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9926.151479][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9926.151479][ T253] ipv6_find_idev+0x102/0x170 [ 9926.151479][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9926.151479][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9926.151479][ T253] netlink_rcv_skb+0x130/0x360 [ 9926.151479][ T253] netlink_unicast+0x449/0x710 [ 9926.151479][ T253] netlink_sendmsg+0x723/0xbe0 [ 9926.151479][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9926.151479][ T253] ___sys_sendmsg+0xee/0x170 [ 9926.151479][ T253] __sys_sendmsg+0xcd/0x170 [ 9926.151479][ T253] do_syscall_64+0xc6/0x1e0 [ 9926.151479][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9926.151479][ T253] [ 9936.402319][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9936.402821][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9936.402821][ T253] dst_init+0x84/0x4a0 [ 9936.402821][ T253] dst_alloc+0x97/0x150 [ 9936.402821][ T253] ip6_dst_alloc+0x23/0x90 [ 9936.402821][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9936.402821][ T253] ip6_pol_route+0x56f/0x840 [ 9936.402821][ T253] fib6_rule_lookup+0x334/0x630 [ 9936.402821][ T253] ip6_route_output_flags+0x259/0x480 [ 9936.402821][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9936.402821][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9936.402821][ T253] netlink_rcv_skb+0x130/0x360 [ 9936.402821][ T253] netlink_unicast+0x449/0x710 [ 9936.402821][ T253] netlink_sendmsg+0x723/0xbe0 [ 9936.402821][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9936.402821][ T253] ___sys_sendmsg+0xee/0x170 [ 9936.402821][ T253] __sys_sendmsg+0xcd/0x170 [ 9936.402821][ T253] do_syscall_64+0xc6/0x1e0 [ 9936.402821][ T253] [ 9936.405036][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9936.405036][ T253] netdev_get_by_index+0x5e/0x80 [ 9936.405036][ T253] fib6_nh_init+0x3d8/0x1580 [ 9936.405036][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9936.405036][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9936.405036][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9936.405036][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9936.405036][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9936.405036][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9936.405036][ T253] addrconf_dad_begin+0x310/0x670 [ 9936.405036][ T253] addrconf_dad_work+0x10b/0xab0 [ 9936.405036][ T253] process_one_work+0x84d/0x18a0 [ 9936.405036][ T253] worker_thread+0x587/0xd30 [ 9936.405036][ T253] kthread+0x28a/0x350 [ 9936.405036][ T253] ret_from_fork+0x31/0x70 [ 9936.405036][ T253] ret_from_fork_asm+0x1a/0x30 [ 9936.405036][ T253] [ 9936.407175][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9936.407175][ T253] netdev_get_by_index+0x5e/0x80 [ 9936.407175][ T253] fib6_nh_init+0x3d8/0x1580 [ 9936.407175][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9936.407175][ T253] ip6_route_add+0x1c/0x140 [ 9936.407175][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9936.407175][ T253] inet6_addr_add+0x4f8/0xa40 [ 9936.407175][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9936.407175][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9936.407175][ T253] netlink_rcv_skb+0x130/0x360 [ 9936.407175][ T253] netlink_unicast+0x449/0x710 [ 9936.407175][ T253] netlink_sendmsg+0x723/0xbe0 [ 9936.407175][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9936.407175][ T253] ___sys_sendmsg+0xee/0x170 [ 9936.407175][ T253] __sys_sendmsg+0xcd/0x170 [ 9936.407175][ T253] do_syscall_64+0xc6/0x1e0 [ 9936.407175][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9936.407175][ T253] [ 9936.409415][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9936.409415][ T253] netdev_get_by_index+0x5e/0x80 [ 9936.409415][ T253] fib6_nh_init+0x3d8/0x1580 [ 9936.409415][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9936.409415][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9936.409415][ T253] ipv6_add_addr+0x411/0x2000 [ 9936.409415][ T253] inet6_addr_add+0x30e/0xa40 [ 9936.409415][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9936.409415][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9936.409415][ T253] netlink_rcv_skb+0x130/0x360 [ 9936.409415][ T253] netlink_unicast+0x449/0x710 [ 9936.409415][ T253] netlink_sendmsg+0x723/0xbe0 [ 9936.409415][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9936.409415][ T253] ___sys_sendmsg+0xee/0x170 [ 9936.409415][ T253] __sys_sendmsg+0xcd/0x170 [ 9936.409415][ T253] do_syscall_64+0xc6/0x1e0 [ 9936.409415][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9936.409415][ T253] [ 9936.411647][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9936.411647][ T253] netdev_get_by_index+0x5e/0x80 [ 9936.411647][ T253] fib6_nh_init+0x3d8/0x1580 [ 9936.411647][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9936.411647][ T253] ip6_route_add+0x1c/0x140 [ 9936.411647][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9936.411647][ T253] addrconf_add_dev+0xe2/0x170 [ 9936.411647][ T253] inet6_addr_add+0x12f/0xa40 [ 9936.411647][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9936.411647][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9936.411647][ T253] netlink_rcv_skb+0x130/0x360 [ 9936.411647][ T253] netlink_unicast+0x449/0x710 [ 9936.411647][ T253] netlink_sendmsg+0x723/0xbe0 [ 9936.411647][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9936.411647][ T253] ___sys_sendmsg+0xee/0x170 [ 9936.411647][ T253] __sys_sendmsg+0xcd/0x170 [ 9936.411647][ T253] do_syscall_64+0xc6/0x1e0 [ 9936.411647][ T253] [ 9936.413834][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9936.413834][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9936.413834][ T253] ipv6_find_idev+0x102/0x170 [ 9936.413834][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9936.413834][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9936.413834][ T253] netlink_rcv_skb+0x130/0x360 [ 9936.413834][ T253] netlink_unicast+0x449/0x710 [ 9936.413834][ T253] netlink_sendmsg+0x723/0xbe0 [ 9936.413834][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9936.413834][ T253] ___sys_sendmsg+0xee/0x170 [ 9936.413834][ T253] __sys_sendmsg+0xcd/0x170 [ 9936.413834][ T253] do_syscall_64+0xc6/0x1e0 [ 9936.413834][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9936.413834][ T253] [ 9936.415563][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9936.415563][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9936.415563][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9936.415563][ T253] ipv6_find_idev+0x102/0x170 [ 9936.415563][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9936.415563][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9936.415563][ T253] netlink_rcv_skb+0x130/0x360 [ 9936.415563][ T253] netlink_unicast+0x449/0x710 [ 9936.415563][ T253] netlink_sendmsg+0x723/0xbe0 [ 9936.415563][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9936.415563][ T253] ___sys_sendmsg+0xee/0x170 [ 9936.415563][ T253] __sys_sendmsg+0xcd/0x170 [ 9936.415563][ T253] do_syscall_64+0xc6/0x1e0 [ 9936.415563][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9936.415563][ T253] [ 9946.666373][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9946.666838][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9946.666838][ T253] dst_init+0x84/0x4a0 [ 9946.666838][ T253] dst_alloc+0x97/0x150 [ 9946.666838][ T253] ip6_dst_alloc+0x23/0x90 [ 9946.666838][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9946.666838][ T253] ip6_pol_route+0x56f/0x840 [ 9946.666838][ T253] fib6_rule_lookup+0x334/0x630 [ 9946.666838][ T253] ip6_route_output_flags+0x259/0x480 [ 9946.666838][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9946.666838][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9946.666838][ T253] netlink_rcv_skb+0x130/0x360 [ 9946.666838][ T253] netlink_unicast+0x449/0x710 [ 9946.666838][ T253] netlink_sendmsg+0x723/0xbe0 [ 9946.666838][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9946.666838][ T253] ___sys_sendmsg+0xee/0x170 [ 9946.666838][ T253] __sys_sendmsg+0xcd/0x170 [ 9946.666838][ T253] do_syscall_64+0xc6/0x1e0 [ 9946.666838][ T253] [ 9946.669030][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9946.669030][ T253] netdev_get_by_index+0x5e/0x80 [ 9946.669030][ T253] fib6_nh_init+0x3d8/0x1580 [ 9946.669030][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9946.669030][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9946.669030][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9946.669030][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9946.669030][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9946.669030][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9946.669030][ T253] addrconf_dad_begin+0x310/0x670 [ 9946.669030][ T253] addrconf_dad_work+0x10b/0xab0 [ 9946.669030][ T253] process_one_work+0x84d/0x18a0 [ 9946.669030][ T253] worker_thread+0x587/0xd30 [ 9946.669030][ T253] kthread+0x28a/0x350 [ 9946.669030][ T253] ret_from_fork+0x31/0x70 [ 9946.669030][ T253] ret_from_fork_asm+0x1a/0x30 [ 9946.669030][ T253] [ 9946.671167][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9946.671167][ T253] netdev_get_by_index+0x5e/0x80 [ 9946.671167][ T253] fib6_nh_init+0x3d8/0x1580 [ 9946.671167][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9946.671167][ T253] ip6_route_add+0x1c/0x140 [ 9946.671167][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9946.671167][ T253] inet6_addr_add+0x4f8/0xa40 [ 9946.671167][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9946.671167][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9946.671167][ T253] netlink_rcv_skb+0x130/0x360 [ 9946.671167][ T253] netlink_unicast+0x449/0x710 [ 9946.671167][ T253] netlink_sendmsg+0x723/0xbe0 [ 9946.671167][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9946.671167][ T253] ___sys_sendmsg+0xee/0x170 [ 9946.671167][ T253] __sys_sendmsg+0xcd/0x170 [ 9946.671167][ T253] do_syscall_64+0xc6/0x1e0 [ 9946.671167][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9946.671167][ T253] [ 9946.673404][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9946.673404][ T253] netdev_get_by_index+0x5e/0x80 [ 9946.673404][ T253] fib6_nh_init+0x3d8/0x1580 [ 9946.673404][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9946.673404][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9946.673404][ T253] ipv6_add_addr+0x411/0x2000 [ 9946.673404][ T253] inet6_addr_add+0x30e/0xa40 [ 9946.673404][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9946.673404][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9946.673404][ T253] netlink_rcv_skb+0x130/0x360 [ 9946.673404][ T253] netlink_unicast+0x449/0x710 [ 9946.673404][ T253] netlink_sendmsg+0x723/0xbe0 [ 9946.673404][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9946.673404][ T253] ___sys_sendmsg+0xee/0x170 [ 9946.673404][ T253] __sys_sendmsg+0xcd/0x170 [ 9946.673404][ T253] do_syscall_64+0xc6/0x1e0 [ 9946.673404][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9946.673404][ T253] [ 9946.675664][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9946.675664][ T253] netdev_get_by_index+0x5e/0x80 [ 9946.675664][ T253] fib6_nh_init+0x3d8/0x1580 [ 9946.675664][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9946.675664][ T253] ip6_route_add+0x1c/0x140 [ 9946.675664][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9946.675664][ T253] addrconf_add_dev+0xe2/0x170 [ 9946.675664][ T253] inet6_addr_add+0x12f/0xa40 [ 9946.675664][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9946.675664][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9946.675664][ T253] netlink_rcv_skb+0x130/0x360 [ 9946.675664][ T253] netlink_unicast+0x449/0x710 [ 9946.675664][ T253] netlink_sendmsg+0x723/0xbe0 [ 9946.675664][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9946.675664][ T253] ___sys_sendmsg+0xee/0x170 [ 9946.675664][ T253] __sys_sendmsg+0xcd/0x170 [ 9946.675664][ T253] do_syscall_64+0xc6/0x1e0 [ 9946.675664][ T253] [ 9946.677867][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9946.677867][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9946.677867][ T253] ipv6_find_idev+0x102/0x170 [ 9946.677867][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9946.677867][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9946.677867][ T253] netlink_rcv_skb+0x130/0x360 [ 9946.677867][ T253] netlink_unicast+0x449/0x710 [ 9946.677867][ T253] netlink_sendmsg+0x723/0xbe0 [ 9946.677867][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9946.677867][ T253] ___sys_sendmsg+0xee/0x170 [ 9946.677867][ T253] __sys_sendmsg+0xcd/0x170 [ 9946.677867][ T253] do_syscall_64+0xc6/0x1e0 [ 9946.677867][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9946.677867][ T253] [ 9946.679584][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9946.679584][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9946.679584][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9946.679584][ T253] ipv6_find_idev+0x102/0x170 [ 9946.679584][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9946.679584][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9946.679584][ T253] netlink_rcv_skb+0x130/0x360 [ 9946.679584][ T253] netlink_unicast+0x449/0x710 [ 9946.679584][ T253] netlink_sendmsg+0x723/0xbe0 [ 9946.679584][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9946.679584][ T253] ___sys_sendmsg+0xee/0x170 [ 9946.679584][ T253] __sys_sendmsg+0xcd/0x170 [ 9946.679584][ T253] do_syscall_64+0xc6/0x1e0 [ 9946.679584][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9946.679584][ T253] [ 9956.930319][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9956.930813][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9956.930813][ T253] dst_init+0x84/0x4a0 [ 9956.930813][ T253] dst_alloc+0x97/0x150 [ 9956.930813][ T253] ip6_dst_alloc+0x23/0x90 [ 9956.930813][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9956.930813][ T253] ip6_pol_route+0x56f/0x840 [ 9956.930813][ T253] fib6_rule_lookup+0x334/0x630 [ 9956.930813][ T253] ip6_route_output_flags+0x259/0x480 [ 9956.930813][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9956.930813][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9956.930813][ T253] netlink_rcv_skb+0x130/0x360 [ 9956.930813][ T253] netlink_unicast+0x449/0x710 [ 9956.930813][ T253] netlink_sendmsg+0x723/0xbe0 [ 9956.930813][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9956.930813][ T253] ___sys_sendmsg+0xee/0x170 [ 9956.930813][ T253] __sys_sendmsg+0xcd/0x170 [ 9956.930813][ T253] do_syscall_64+0xc6/0x1e0 [ 9956.930813][ T253] [ 9956.933028][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9956.933028][ T253] netdev_get_by_index+0x5e/0x80 [ 9956.933028][ T253] fib6_nh_init+0x3d8/0x1580 [ 9956.933028][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9956.933028][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9956.933028][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9956.933028][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9956.933028][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9956.933028][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9956.933028][ T253] addrconf_dad_begin+0x310/0x670 [ 9956.933028][ T253] addrconf_dad_work+0x10b/0xab0 [ 9956.933028][ T253] process_one_work+0x84d/0x18a0 [ 9956.933028][ T253] worker_thread+0x587/0xd30 [ 9956.933028][ T253] kthread+0x28a/0x350 [ 9956.933028][ T253] ret_from_fork+0x31/0x70 [ 9956.933028][ T253] ret_from_fork_asm+0x1a/0x30 [ 9956.933028][ T253] [ 9956.935184][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9956.935184][ T253] netdev_get_by_index+0x5e/0x80 [ 9956.935184][ T253] fib6_nh_init+0x3d8/0x1580 [ 9956.935184][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9956.935184][ T253] ip6_route_add+0x1c/0x140 [ 9956.935184][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9956.935184][ T253] inet6_addr_add+0x4f8/0xa40 [ 9956.935184][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9956.935184][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9956.935184][ T253] netlink_rcv_skb+0x130/0x360 [ 9956.935184][ T253] netlink_unicast+0x449/0x710 [ 9956.935184][ T253] netlink_sendmsg+0x723/0xbe0 [ 9956.935184][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9956.935184][ T253] ___sys_sendmsg+0xee/0x170 [ 9956.935184][ T253] __sys_sendmsg+0xcd/0x170 [ 9956.935184][ T253] do_syscall_64+0xc6/0x1e0 [ 9956.935184][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9956.935184][ T253] [ 9956.937421][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9956.937421][ T253] netdev_get_by_index+0x5e/0x80 [ 9956.937421][ T253] fib6_nh_init+0x3d8/0x1580 [ 9956.937421][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9956.937421][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9956.937421][ T253] ipv6_add_addr+0x411/0x2000 [ 9956.937421][ T253] inet6_addr_add+0x30e/0xa40 [ 9956.937421][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9956.937421][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9956.937421][ T253] netlink_rcv_skb+0x130/0x360 [ 9956.937421][ T253] netlink_unicast+0x449/0x710 [ 9956.937421][ T253] netlink_sendmsg+0x723/0xbe0 [ 9956.937421][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9956.937421][ T253] ___sys_sendmsg+0xee/0x170 [ 9956.937421][ T253] __sys_sendmsg+0xcd/0x170 [ 9956.937421][ T253] do_syscall_64+0xc6/0x1e0 [ 9956.937421][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9956.937421][ T253] [ 9956.939663][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9956.939663][ T253] netdev_get_by_index+0x5e/0x80 [ 9956.939663][ T253] fib6_nh_init+0x3d8/0x1580 [ 9956.939663][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9956.939663][ T253] ip6_route_add+0x1c/0x140 [ 9956.939663][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9956.939663][ T253] addrconf_add_dev+0xe2/0x170 [ 9956.939663][ T253] inet6_addr_add+0x12f/0xa40 [ 9956.939663][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9956.939663][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9956.939663][ T253] netlink_rcv_skb+0x130/0x360 [ 9956.939663][ T253] netlink_unicast+0x449/0x710 [ 9956.939663][ T253] netlink_sendmsg+0x723/0xbe0 [ 9956.939663][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9956.939663][ T253] ___sys_sendmsg+0xee/0x170 [ 9956.939663][ T253] __sys_sendmsg+0xcd/0x170 [ 9956.939663][ T253] do_syscall_64+0xc6/0x1e0 [ 9956.939663][ T253] [ 9956.941874][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9956.941874][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9956.941874][ T253] ipv6_find_idev+0x102/0x170 [ 9956.941874][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9956.941874][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9956.941874][ T253] netlink_rcv_skb+0x130/0x360 [ 9956.941874][ T253] netlink_unicast+0x449/0x710 [ 9956.941874][ T253] netlink_sendmsg+0x723/0xbe0 [ 9956.941874][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9956.941874][ T253] ___sys_sendmsg+0xee/0x170 [ 9956.941874][ T253] __sys_sendmsg+0xcd/0x170 [ 9956.941874][ T253] do_syscall_64+0xc6/0x1e0 [ 9956.941874][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9956.941874][ T253] [ 9956.943597][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9956.943597][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9956.943597][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9956.943597][ T253] ipv6_find_idev+0x102/0x170 [ 9956.943597][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9956.943597][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9956.943597][ T253] netlink_rcv_skb+0x130/0x360 [ 9956.943597][ T253] netlink_unicast+0x449/0x710 [ 9956.943597][ T253] netlink_sendmsg+0x723/0xbe0 [ 9956.943597][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9956.943597][ T253] ___sys_sendmsg+0xee/0x170 [ 9956.943597][ T253] __sys_sendmsg+0xcd/0x170 [ 9956.943597][ T253] do_syscall_64+0xc6/0x1e0 [ 9956.943597][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9956.943597][ T253] [ 9967.226369][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9967.226842][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9967.226842][ T253] dst_init+0x84/0x4a0 [ 9967.226842][ T253] dst_alloc+0x97/0x150 [ 9967.226842][ T253] ip6_dst_alloc+0x23/0x90 [ 9967.226842][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9967.226842][ T253] ip6_pol_route+0x56f/0x840 [ 9967.226842][ T253] fib6_rule_lookup+0x334/0x630 [ 9967.226842][ T253] ip6_route_output_flags+0x259/0x480 [ 9967.226842][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9967.226842][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9967.226842][ T253] netlink_rcv_skb+0x130/0x360 [ 9967.226842][ T253] netlink_unicast+0x449/0x710 [ 9967.226842][ T253] netlink_sendmsg+0x723/0xbe0 [ 9967.226842][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9967.226842][ T253] ___sys_sendmsg+0xee/0x170 [ 9967.226842][ T253] __sys_sendmsg+0xcd/0x170 [ 9967.226842][ T253] do_syscall_64+0xc6/0x1e0 [ 9967.226842][ T253] [ 9967.229033][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9967.229033][ T253] netdev_get_by_index+0x5e/0x80 [ 9967.229033][ T253] fib6_nh_init+0x3d8/0x1580 [ 9967.229033][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9967.229033][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9967.229033][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9967.229033][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9967.229033][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9967.229033][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9967.229033][ T253] addrconf_dad_begin+0x310/0x670 [ 9967.229033][ T253] addrconf_dad_work+0x10b/0xab0 [ 9967.229033][ T253] process_one_work+0x84d/0x18a0 [ 9967.229033][ T253] worker_thread+0x587/0xd30 [ 9967.229033][ T253] kthread+0x28a/0x350 [ 9967.229033][ T253] ret_from_fork+0x31/0x70 [ 9967.229033][ T253] ret_from_fork_asm+0x1a/0x30 [ 9967.229033][ T253] [ 9967.231188][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9967.231188][ T253] netdev_get_by_index+0x5e/0x80 [ 9967.231188][ T253] fib6_nh_init+0x3d8/0x1580 [ 9967.231188][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9967.231188][ T253] ip6_route_add+0x1c/0x140 [ 9967.231188][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9967.231188][ T253] inet6_addr_add+0x4f8/0xa40 [ 9967.231188][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9967.231188][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9967.231188][ T253] netlink_rcv_skb+0x130/0x360 [ 9967.231188][ T253] netlink_unicast+0x449/0x710 [ 9967.231188][ T253] netlink_sendmsg+0x723/0xbe0 [ 9967.231188][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9967.231188][ T253] ___sys_sendmsg+0xee/0x170 [ 9967.231188][ T253] __sys_sendmsg+0xcd/0x170 [ 9967.231188][ T253] do_syscall_64+0xc6/0x1e0 [ 9967.231188][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9967.231188][ T253] [ 9967.233429][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9967.233429][ T253] netdev_get_by_index+0x5e/0x80 [ 9967.233429][ T253] fib6_nh_init+0x3d8/0x1580 [ 9967.233429][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9967.233429][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9967.233429][ T253] ipv6_add_addr+0x411/0x2000 [ 9967.233429][ T253] inet6_addr_add+0x30e/0xa40 [ 9967.233429][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9967.233429][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9967.233429][ T253] netlink_rcv_skb+0x130/0x360 [ 9967.233429][ T253] netlink_unicast+0x449/0x710 [ 9967.233429][ T253] netlink_sendmsg+0x723/0xbe0 [ 9967.233429][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9967.233429][ T253] ___sys_sendmsg+0xee/0x170 [ 9967.233429][ T253] __sys_sendmsg+0xcd/0x170 [ 9967.233429][ T253] do_syscall_64+0xc6/0x1e0 [ 9967.233429][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9967.233429][ T253] [ 9967.235679][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9967.235679][ T253] netdev_get_by_index+0x5e/0x80 [ 9967.235679][ T253] fib6_nh_init+0x3d8/0x1580 [ 9967.235679][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9967.235679][ T253] ip6_route_add+0x1c/0x140 [ 9967.235679][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9967.235679][ T253] addrconf_add_dev+0xe2/0x170 [ 9967.235679][ T253] inet6_addr_add+0x12f/0xa40 [ 9967.235679][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9967.235679][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9967.235679][ T253] netlink_rcv_skb+0x130/0x360 [ 9967.235679][ T253] netlink_unicast+0x449/0x710 [ 9967.235679][ T253] netlink_sendmsg+0x723/0xbe0 [ 9967.235679][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9967.235679][ T253] ___sys_sendmsg+0xee/0x170 [ 9967.235679][ T253] __sys_sendmsg+0xcd/0x170 [ 9967.235679][ T253] do_syscall_64+0xc6/0x1e0 [ 9967.235679][ T253] [ 9967.237879][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9967.237879][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9967.237879][ T253] ipv6_find_idev+0x102/0x170 [ 9967.237879][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9967.237879][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9967.237879][ T253] netlink_rcv_skb+0x130/0x360 [ 9967.237879][ T253] netlink_unicast+0x449/0x710 [ 9967.237879][ T253] netlink_sendmsg+0x723/0xbe0 [ 9967.237879][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9967.237879][ T253] ___sys_sendmsg+0xee/0x170 [ 9967.237879][ T253] __sys_sendmsg+0xcd/0x170 [ 9967.237879][ T253] do_syscall_64+0xc6/0x1e0 [ 9967.237879][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9967.237879][ T253] [ 9967.239605][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9967.239605][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9967.239605][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9967.239605][ T253] ipv6_find_idev+0x102/0x170 [ 9967.239605][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9967.239605][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9967.239605][ T253] netlink_rcv_skb+0x130/0x360 [ 9967.239605][ T253] netlink_unicast+0x449/0x710 [ 9967.239605][ T253] netlink_sendmsg+0x723/0xbe0 [ 9967.239605][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9967.239605][ T253] ___sys_sendmsg+0xee/0x170 [ 9967.239605][ T253] __sys_sendmsg+0xcd/0x170 [ 9967.239605][ T253] do_syscall_64+0xc6/0x1e0 [ 9967.239605][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9967.239605][ T253] [ 9977.322323][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9977.322794][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9977.322794][ T253] dst_init+0x84/0x4a0 [ 9977.322794][ T253] dst_alloc+0x97/0x150 [ 9977.322794][ T253] ip6_dst_alloc+0x23/0x90 [ 9977.322794][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9977.322794][ T253] ip6_pol_route+0x56f/0x840 [ 9977.322794][ T253] fib6_rule_lookup+0x334/0x630 [ 9977.322794][ T253] ip6_route_output_flags+0x259/0x480 [ 9977.322794][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9977.322794][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9977.322794][ T253] netlink_rcv_skb+0x130/0x360 [ 9977.322794][ T253] netlink_unicast+0x449/0x710 [ 9977.322794][ T253] netlink_sendmsg+0x723/0xbe0 [ 9977.322794][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9977.322794][ T253] ___sys_sendmsg+0xee/0x170 [ 9977.322794][ T253] __sys_sendmsg+0xcd/0x170 [ 9977.322794][ T253] do_syscall_64+0xc6/0x1e0 [ 9977.322794][ T253] [ 9977.324992][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9977.324992][ T253] netdev_get_by_index+0x5e/0x80 [ 9977.324992][ T253] fib6_nh_init+0x3d8/0x1580 [ 9977.324992][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9977.324992][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9977.324992][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9977.324992][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9977.324992][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9977.324992][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9977.324992][ T253] addrconf_dad_begin+0x310/0x670 [ 9977.324992][ T253] addrconf_dad_work+0x10b/0xab0 [ 9977.324992][ T253] process_one_work+0x84d/0x18a0 [ 9977.324992][ T253] worker_thread+0x587/0xd30 [ 9977.324992][ T253] kthread+0x28a/0x350 [ 9977.324992][ T253] ret_from_fork+0x31/0x70 [ 9977.324992][ T253] ret_from_fork_asm+0x1a/0x30 [ 9977.324992][ T253] [ 9977.327133][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9977.327133][ T253] netdev_get_by_index+0x5e/0x80 [ 9977.327133][ T253] fib6_nh_init+0x3d8/0x1580 [ 9977.327133][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9977.327133][ T253] ip6_route_add+0x1c/0x140 [ 9977.327133][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9977.327133][ T253] inet6_addr_add+0x4f8/0xa40 [ 9977.327133][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9977.327133][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9977.327133][ T253] netlink_rcv_skb+0x130/0x360 [ 9977.327133][ T253] netlink_unicast+0x449/0x710 [ 9977.327133][ T253] netlink_sendmsg+0x723/0xbe0 [ 9977.327133][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9977.327133][ T253] ___sys_sendmsg+0xee/0x170 [ 9977.327133][ T253] __sys_sendmsg+0xcd/0x170 [ 9977.327133][ T253] do_syscall_64+0xc6/0x1e0 [ 9977.327133][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9977.327133][ T253] [ 9977.329371][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9977.329371][ T253] netdev_get_by_index+0x5e/0x80 [ 9977.329371][ T253] fib6_nh_init+0x3d8/0x1580 [ 9977.329371][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9977.329371][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9977.329371][ T253] ipv6_add_addr+0x411/0x2000 [ 9977.329371][ T253] inet6_addr_add+0x30e/0xa40 [ 9977.329371][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9977.329371][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9977.329371][ T253] netlink_rcv_skb+0x130/0x360 [ 9977.329371][ T253] netlink_unicast+0x449/0x710 [ 9977.329371][ T253] netlink_sendmsg+0x723/0xbe0 [ 9977.329371][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9977.329371][ T253] ___sys_sendmsg+0xee/0x170 [ 9977.329371][ T253] __sys_sendmsg+0xcd/0x170 [ 9977.329371][ T253] do_syscall_64+0xc6/0x1e0 [ 9977.329371][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9977.329371][ T253] [ 9977.331626][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9977.331626][ T253] netdev_get_by_index+0x5e/0x80 [ 9977.331626][ T253] fib6_nh_init+0x3d8/0x1580 [ 9977.331626][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9977.331626][ T253] ip6_route_add+0x1c/0x140 [ 9977.331626][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9977.331626][ T253] addrconf_add_dev+0xe2/0x170 [ 9977.331626][ T253] inet6_addr_add+0x12f/0xa40 [ 9977.331626][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9977.331626][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9977.331626][ T253] netlink_rcv_skb+0x130/0x360 [ 9977.331626][ T253] netlink_unicast+0x449/0x710 [ 9977.331626][ T253] netlink_sendmsg+0x723/0xbe0 [ 9977.331626][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9977.331626][ T253] ___sys_sendmsg+0xee/0x170 [ 9977.331626][ T253] __sys_sendmsg+0xcd/0x170 [ 9977.331626][ T253] do_syscall_64+0xc6/0x1e0 [ 9977.331626][ T253] [ 9977.333828][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9977.333828][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9977.333828][ T253] ipv6_find_idev+0x102/0x170 [ 9977.333828][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9977.333828][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9977.333828][ T253] netlink_rcv_skb+0x130/0x360 [ 9977.333828][ T253] netlink_unicast+0x449/0x710 [ 9977.333828][ T253] netlink_sendmsg+0x723/0xbe0 [ 9977.333828][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9977.333828][ T253] ___sys_sendmsg+0xee/0x170 [ 9977.333828][ T253] __sys_sendmsg+0xcd/0x170 [ 9977.333828][ T253] do_syscall_64+0xc6/0x1e0 [ 9977.333828][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9977.333828][ T253] [ 9977.335552][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9977.335552][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9977.335552][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9977.335552][ T253] ipv6_find_idev+0x102/0x170 [ 9977.335552][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9977.335552][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9977.335552][ T253] netlink_rcv_skb+0x130/0x360 [ 9977.335552][ T253] netlink_unicast+0x449/0x710 [ 9977.335552][ T253] netlink_sendmsg+0x723/0xbe0 [ 9977.335552][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9977.335552][ T253] ___sys_sendmsg+0xee/0x170 [ 9977.335552][ T253] __sys_sendmsg+0xcd/0x170 [ 9977.335552][ T253] do_syscall_64+0xc6/0x1e0 [ 9977.335552][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9977.335552][ T253] [ 9987.578301][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9987.578769][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9987.578769][ T253] dst_init+0x84/0x4a0 [ 9987.578769][ T253] dst_alloc+0x97/0x150 [ 9987.578769][ T253] ip6_dst_alloc+0x23/0x90 [ 9987.578769][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9987.578769][ T253] ip6_pol_route+0x56f/0x840 [ 9987.578769][ T253] fib6_rule_lookup+0x334/0x630 [ 9987.578769][ T253] ip6_route_output_flags+0x259/0x480 [ 9987.578769][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9987.578769][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9987.578769][ T253] netlink_rcv_skb+0x130/0x360 [ 9987.578769][ T253] netlink_unicast+0x449/0x710 [ 9987.578769][ T253] netlink_sendmsg+0x723/0xbe0 [ 9987.578769][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9987.578769][ T253] ___sys_sendmsg+0xee/0x170 [ 9987.578769][ T253] __sys_sendmsg+0xcd/0x170 [ 9987.578769][ T253] do_syscall_64+0xc6/0x1e0 [ 9987.578769][ T253] [ 9987.581332][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9987.581332][ T253] netdev_get_by_index+0x5e/0x80 [ 9987.581332][ T253] fib6_nh_init+0x3d8/0x1580 [ 9987.581332][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9987.581332][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9987.581332][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9987.581332][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9987.581332][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9987.581332][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9987.581332][ T253] addrconf_dad_begin+0x310/0x670 [ 9987.581332][ T253] addrconf_dad_work+0x10b/0xab0 [ 9987.581332][ T253] process_one_work+0x84d/0x18a0 [ 9987.581332][ T253] worker_thread+0x587/0xd30 [ 9987.581332][ T253] kthread+0x28a/0x350 [ 9987.581332][ T253] ret_from_fork+0x31/0x70 [ 9987.581332][ T253] ret_from_fork_asm+0x1a/0x30 [ 9987.581332][ T253] [ 9987.583475][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9987.583475][ T253] netdev_get_by_index+0x5e/0x80 [ 9987.583475][ T253] fib6_nh_init+0x3d8/0x1580 [ 9987.583475][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9987.583475][ T253] ip6_route_add+0x1c/0x140 [ 9987.583475][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9987.583475][ T253] inet6_addr_add+0x4f8/0xa40 [ 9987.583475][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9987.583475][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9987.583475][ T253] netlink_rcv_skb+0x130/0x360 [ 9987.583475][ T253] netlink_unicast+0x449/0x710 [ 9987.583475][ T253] netlink_sendmsg+0x723/0xbe0 [ 9987.583475][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9987.583475][ T253] ___sys_sendmsg+0xee/0x170 [ 9987.583475][ T253] __sys_sendmsg+0xcd/0x170 [ 9987.583475][ T253] do_syscall_64+0xc6/0x1e0 [ 9987.583475][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9987.583475][ T253] [ 9987.585712][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9987.585712][ T253] netdev_get_by_index+0x5e/0x80 [ 9987.585712][ T253] fib6_nh_init+0x3d8/0x1580 [ 9987.585712][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9987.585712][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9987.585712][ T253] ipv6_add_addr+0x411/0x2000 [ 9987.585712][ T253] inet6_addr_add+0x30e/0xa40 [ 9987.585712][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9987.585712][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9987.585712][ T253] netlink_rcv_skb+0x130/0x360 [ 9987.585712][ T253] netlink_unicast+0x449/0x710 [ 9987.585712][ T253] netlink_sendmsg+0x723/0xbe0 [ 9987.585712][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9987.585712][ T253] ___sys_sendmsg+0xee/0x170 [ 9987.585712][ T253] __sys_sendmsg+0xcd/0x170 [ 9987.585712][ T253] do_syscall_64+0xc6/0x1e0 [ 9987.585712][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9987.585712][ T253] [ 9987.587943][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9987.587943][ T253] netdev_get_by_index+0x5e/0x80 [ 9987.587943][ T253] fib6_nh_init+0x3d8/0x1580 [ 9987.587943][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9987.587943][ T253] ip6_route_add+0x1c/0x140 [ 9987.587943][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9987.587943][ T253] addrconf_add_dev+0xe2/0x170 [ 9987.587943][ T253] inet6_addr_add+0x12f/0xa40 [ 9987.587943][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9987.587943][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9987.587943][ T253] netlink_rcv_skb+0x130/0x360 [ 9987.587943][ T253] netlink_unicast+0x449/0x710 [ 9987.587943][ T253] netlink_sendmsg+0x723/0xbe0 [ 9987.587943][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9987.587943][ T253] ___sys_sendmsg+0xee/0x170 [ 9987.587943][ T253] __sys_sendmsg+0xcd/0x170 [ 9987.587943][ T253] do_syscall_64+0xc6/0x1e0 [ 9987.587943][ T253] [ 9987.590136][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9987.590136][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9987.590136][ T253] ipv6_find_idev+0x102/0x170 [ 9987.590136][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9987.590136][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9987.590136][ T253] netlink_rcv_skb+0x130/0x360 [ 9987.590136][ T253] netlink_unicast+0x449/0x710 [ 9987.590136][ T253] netlink_sendmsg+0x723/0xbe0 [ 9987.590136][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9987.590136][ T253] ___sys_sendmsg+0xee/0x170 [ 9987.590136][ T253] __sys_sendmsg+0xcd/0x170 [ 9987.590136][ T253] do_syscall_64+0xc6/0x1e0 [ 9987.590136][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9987.590136][ T253] [ 9987.591857][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9987.591857][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9987.591857][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9987.591857][ T253] ipv6_find_idev+0x102/0x170 [ 9987.591857][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9987.591857][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9987.591857][ T253] netlink_rcv_skb+0x130/0x360 [ 9987.591857][ T253] netlink_unicast+0x449/0x710 [ 9987.591857][ T253] netlink_sendmsg+0x723/0xbe0 [ 9987.591857][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9987.591857][ T253] ___sys_sendmsg+0xee/0x170 [ 9987.591857][ T253] __sys_sendmsg+0xcd/0x170 [ 9987.591857][ T253] do_syscall_64+0xc6/0x1e0 [ 9987.591857][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9987.591857][ T253] [ 9997.666293][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9997.666863][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9997.666863][ T253] dst_init+0x84/0x4a0 [ 9997.666863][ T253] dst_alloc+0x97/0x150 [ 9997.666863][ T253] ip6_dst_alloc+0x23/0x90 [ 9997.666863][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9997.666863][ T253] ip6_pol_route+0x56f/0x840 [ 9997.666863][ T253] fib6_rule_lookup+0x334/0x630 [ 9997.666863][ T253] ip6_route_output_flags+0x259/0x480 [ 9997.666863][ T253] inet6_rtm_getroute+0x980/0xf70 [ 9997.666863][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [ 9997.666863][ T253] netlink_rcv_skb+0x130/0x360 [ 9997.666863][ T253] netlink_unicast+0x449/0x710 [ 9997.666863][ T253] netlink_sendmsg+0x723/0xbe0 [ 9997.666863][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9997.666863][ T253] ___sys_sendmsg+0xee/0x170 [ 9997.666863][ T253] __sys_sendmsg+0xcd/0x170 [ 9997.666863][ T253] do_syscall_64+0xc6/0x1e0 [ 9997.666863][ T253] [ 9997.670429][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9997.670429][ T253] netdev_get_by_index+0x5e/0x80 [ 9997.670429][ T253] fib6_nh_init+0x3d8/0x1580 [ 9997.670429][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9997.670429][ T253] addrconf_f6i_alloc+0x265/0x560 [ 9997.670429][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9997.670429][ T253] addrconf_join_anycast+0x1c0/0x220 [ 9997.670429][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9997.670429][ T253] addrconf_dad_completed+0x12b/0xe20 [ 9997.670429][ T253] addrconf_dad_begin+0x310/0x670 [ 9997.670429][ T253] addrconf_dad_work+0x10b/0xab0 [ 9997.670429][ T253] process_one_work+0x84d/0x18a0 [ 9997.670429][ T253] worker_thread+0x587/0xd30 [ 9997.670429][ T253] kthread+0x28a/0x350 [ 9997.670429][ T253] ret_from_fork+0x31/0x70 [ 9997.670429][ T253] ret_from_fork_asm+0x1a/0x30 [ 9997.670429][ T253] [ 9997.673953][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9997.673953][ T253] netdev_get_by_index+0x5e/0x80 [ 9997.673953][ T253] fib6_nh_init+0x3d8/0x1580 [ 9997.673953][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9997.673953][ T253] ip6_route_add+0x1c/0x140 [ 9997.673953][ T253] addrconf_prefix_route+0x2a6/0x430 [ 9997.673953][ T253] inet6_addr_add+0x4f8/0xa40 [ 9997.673953][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9997.673953][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9997.673953][ T253] netlink_rcv_skb+0x130/0x360 [ 9997.673953][ T253] netlink_unicast+0x449/0x710 [ 9997.673953][ T253] netlink_sendmsg+0x723/0xbe0 [ 9997.673953][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9997.673953][ T253] ___sys_sendmsg+0xee/0x170 [ 9997.673953][ T253] __sys_sendmsg+0xcd/0x170 [ 9997.673953][ T253] do_syscall_64+0xc6/0x1e0 [ 9997.673953][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9997.673953][ T253] [ 9997.678183][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9997.678183][ T253] netdev_get_by_index+0x5e/0x80 [ 9997.678183][ T253] fib6_nh_init+0x3d8/0x1580 [ 9997.678183][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9997.678183][ T253] addrconf_f6i_alloc+0x315/0x560 [ 9997.678183][ T253] ipv6_add_addr+0x411/0x2000 [ 9997.678183][ T253] inet6_addr_add+0x30e/0xa40 [ 9997.678183][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9997.678183][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9997.678183][ T253] netlink_rcv_skb+0x130/0x360 [ 9997.678183][ T253] netlink_unicast+0x449/0x710 [ 9997.678183][ T253] netlink_sendmsg+0x723/0xbe0 [ 9997.678183][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9997.678183][ T253] ___sys_sendmsg+0xee/0x170 [ 9997.678183][ T253] __sys_sendmsg+0xcd/0x170 [ 9997.678183][ T253] do_syscall_64+0xc6/0x1e0 [ 9997.678183][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9997.678183][ T253] [ 9997.681850][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9997.681850][ T253] netdev_get_by_index+0x5e/0x80 [ 9997.681850][ T253] fib6_nh_init+0x3d8/0x1580 [ 9997.681850][ T253] ip6_route_info_create+0xf18/0x17d0 [ 9997.681850][ T253] ip6_route_add+0x1c/0x140 [ 9997.681850][ T253] addrconf_add_mroute+0x1ac/0x2c0 [ 9997.681850][ T253] addrconf_add_dev+0xe2/0x170 [ 9997.681850][ T253] inet6_addr_add+0x12f/0xa40 [ 9997.681850][ T253] inet6_rtm_newaddr+0x560/0x6b0 [ 9997.681850][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9997.681850][ T253] netlink_rcv_skb+0x130/0x360 [ 9997.681850][ T253] netlink_unicast+0x449/0x710 [ 9997.681850][ T253] netlink_sendmsg+0x723/0xbe0 [ 9997.681850][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9997.681850][ T253] ___sys_sendmsg+0xee/0x170 [ 9997.681850][ T253] __sys_sendmsg+0xcd/0x170 [ 9997.681850][ T253] do_syscall_64+0xc6/0x1e0 [ 9997.681850][ T253] [ 9997.685483][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9997.685483][ T253] ipv6_add_dev+0x3ba/0x11c0 [ 9997.685483][ T253] ipv6_find_idev+0x102/0x170 [ 9997.685483][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9997.685483][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9997.685483][ T253] netlink_rcv_skb+0x130/0x360 [ 9997.685483][ T253] netlink_unicast+0x449/0x710 [ 9997.685483][ T253] netlink_sendmsg+0x723/0xbe0 [ 9997.685483][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9997.685483][ T253] ___sys_sendmsg+0xee/0x170 [ 9997.685483][ T253] __sys_sendmsg+0xcd/0x170 [ 9997.685483][ T253] do_syscall_64+0xc6/0x1e0 [ 9997.685483][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9997.685483][ T253] [ 9997.688311][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [ 9997.688311][ T253] neigh_parms_alloc+0x1e5/0x510 [ 9997.688311][ T253] ipv6_add_dev+0x2fe/0x11c0 [ 9997.688311][ T253] ipv6_find_idev+0x102/0x170 [ 9997.688311][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [ 9997.688311][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9997.688311][ T253] netlink_rcv_skb+0x130/0x360 [ 9997.688311][ T253] netlink_unicast+0x449/0x710 [ 9997.688311][ T253] netlink_sendmsg+0x723/0xbe0 [ 9997.688311][ T253] ____sys_sendmsg+0x7b2/0xa10 [ 9997.688311][ T253] ___sys_sendmsg+0xee/0x170 [ 9997.688311][ T253] __sys_sendmsg+0xcd/0x170 [ 9997.688311][ T253] do_syscall_64+0xc6/0x1e0 [ 9997.688311][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9997.688311][ T253] [10007.874243][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10007.874809][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10007.874809][ T253] dst_init+0x84/0x4a0 [10007.874809][ T253] dst_alloc+0x97/0x150 [10007.874809][ T253] ip6_dst_alloc+0x23/0x90 [10007.874809][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [10007.874809][ T253] ip6_pol_route+0x56f/0x840 [10007.874809][ T253] fib6_rule_lookup+0x334/0x630 [10007.874809][ T253] ip6_route_output_flags+0x259/0x480 [10007.874809][ T253] inet6_rtm_getroute+0x980/0xf70 [10007.874809][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [10007.874809][ T253] netlink_rcv_skb+0x130/0x360 [10007.874809][ T253] netlink_unicast+0x449/0x710 [10007.874809][ T253] netlink_sendmsg+0x723/0xbe0 [10007.874809][ T253] ____sys_sendmsg+0x7b2/0xa10 [10007.874809][ T253] ___sys_sendmsg+0xee/0x170 [10007.874809][ T253] __sys_sendmsg+0xcd/0x170 [10007.874809][ T253] do_syscall_64+0xc6/0x1e0 [10007.874809][ T253] [10007.878366][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10007.878366][ T253] netdev_get_by_index+0x5e/0x80 [10007.878366][ T253] fib6_nh_init+0x3d8/0x1580 [10007.878366][ T253] ip6_route_info_create+0xf18/0x17d0 [10007.878366][ T253] addrconf_f6i_alloc+0x265/0x560 [10007.878366][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [10007.878366][ T253] addrconf_join_anycast+0x1c0/0x220 [10007.878366][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [10007.878366][ T253] addrconf_dad_completed+0x12b/0xe20 [10007.878366][ T253] addrconf_dad_begin+0x310/0x670 [10007.878366][ T253] addrconf_dad_work+0x10b/0xab0 [10007.878366][ T253] process_one_work+0x84d/0x18a0 [10007.878366][ T253] worker_thread+0x587/0xd30 [10007.878366][ T253] kthread+0x28a/0x350 [10007.878366][ T253] ret_from_fork+0x31/0x70 [10007.878366][ T253] ret_from_fork_asm+0x1a/0x30 [10007.878366][ T253] [10007.881871][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10007.881871][ T253] netdev_get_by_index+0x5e/0x80 [10007.881871][ T253] fib6_nh_init+0x3d8/0x1580 [10007.881871][ T253] ip6_route_info_create+0xf18/0x17d0 [10007.881871][ T253] ip6_route_add+0x1c/0x140 [10007.881871][ T253] addrconf_prefix_route+0x2a6/0x430 [10007.881871][ T253] inet6_addr_add+0x4f8/0xa40 [10007.881871][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10007.881871][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10007.881871][ T253] netlink_rcv_skb+0x130/0x360 [10007.881871][ T253] netlink_unicast+0x449/0x710 [10007.881871][ T253] netlink_sendmsg+0x723/0xbe0 [10007.881871][ T253] ____sys_sendmsg+0x7b2/0xa10 [10007.881871][ T253] ___sys_sendmsg+0xee/0x170 [10007.881871][ T253] __sys_sendmsg+0xcd/0x170 [10007.881871][ T253] do_syscall_64+0xc6/0x1e0 [10007.881871][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10007.881871][ T253] [10007.885563][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10007.885563][ T253] netdev_get_by_index+0x5e/0x80 [10007.885563][ T253] fib6_nh_init+0x3d8/0x1580 [10007.885563][ T253] ip6_route_info_create+0xf18/0x17d0 [10007.885563][ T253] addrconf_f6i_alloc+0x315/0x560 [10007.885563][ T253] ipv6_add_addr+0x411/0x2000 [10007.885563][ T253] inet6_addr_add+0x30e/0xa40 [10007.885563][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10007.885563][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10007.885563][ T253] netlink_rcv_skb+0x130/0x360 [10007.885563][ T253] netlink_unicast+0x449/0x710 [10007.885563][ T253] netlink_sendmsg+0x723/0xbe0 [10007.885563][ T253] ____sys_sendmsg+0x7b2/0xa10 [10007.885563][ T253] ___sys_sendmsg+0xee/0x170 [10007.885563][ T253] __sys_sendmsg+0xcd/0x170 [10007.885563][ T253] do_syscall_64+0xc6/0x1e0 [10007.885563][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10007.885563][ T253] [10007.889245][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10007.889245][ T253] netdev_get_by_index+0x5e/0x80 [10007.889245][ T253] fib6_nh_init+0x3d8/0x1580 [10007.889245][ T253] ip6_route_info_create+0xf18/0x17d0 [10007.889245][ T253] ip6_route_add+0x1c/0x140 [10007.889245][ T253] addrconf_add_mroute+0x1ac/0x2c0 [10007.889245][ T253] addrconf_add_dev+0xe2/0x170 [10007.889245][ T253] inet6_addr_add+0x12f/0xa40 [10007.889245][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10007.889245][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10007.889245][ T253] netlink_rcv_skb+0x130/0x360 [10007.889245][ T253] netlink_unicast+0x449/0x710 [10007.889245][ T253] netlink_sendmsg+0x723/0xbe0 [10007.889245][ T253] ____sys_sendmsg+0x7b2/0xa10 [10007.889245][ T253] ___sys_sendmsg+0xee/0x170 [10007.889245][ T253] __sys_sendmsg+0xcd/0x170 [10007.889245][ T253] do_syscall_64+0xc6/0x1e0 [10007.889245][ T253] [10007.892868][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10007.892868][ T253] ipv6_add_dev+0x3ba/0x11c0 [10007.892868][ T253] ipv6_find_idev+0x102/0x170 [10007.892868][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10007.892868][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10007.892868][ T253] netlink_rcv_skb+0x130/0x360 [10007.892868][ T253] netlink_unicast+0x449/0x710 [10007.892868][ T253] netlink_sendmsg+0x723/0xbe0 [10007.892868][ T253] ____sys_sendmsg+0x7b2/0xa10 [10007.892868][ T253] ___sys_sendmsg+0xee/0x170 [10007.892868][ T253] __sys_sendmsg+0xcd/0x170 [10007.892868][ T253] do_syscall_64+0xc6/0x1e0 [10007.892868][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10007.892868][ T253] [10007.895703][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10007.895703][ T253] neigh_parms_alloc+0x1e5/0x510 [10007.895703][ T253] ipv6_add_dev+0x2fe/0x11c0 [10007.895703][ T253] ipv6_find_idev+0x102/0x170 [10007.895703][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10007.895703][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10007.895703][ T253] netlink_rcv_skb+0x130/0x360 [10007.895703][ T253] netlink_unicast+0x449/0x710 [10007.895703][ T253] netlink_sendmsg+0x723/0xbe0 [10007.895703][ T253] ____sys_sendmsg+0x7b2/0xa10 [10007.895703][ T253] ___sys_sendmsg+0xee/0x170 [10007.895703][ T253] __sys_sendmsg+0xcd/0x170 [10007.895703][ T253] do_syscall_64+0xc6/0x1e0 [10007.895703][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10007.895703][ T253] [10017.930328][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10017.930895][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10017.930895][ T253] dst_init+0x84/0x4a0 [10017.930895][ T253] dst_alloc+0x97/0x150 [10017.930895][ T253] ip6_dst_alloc+0x23/0x90 [10017.930895][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [10017.930895][ T253] ip6_pol_route+0x56f/0x840 [10017.930895][ T253] fib6_rule_lookup+0x334/0x630 [10017.930895][ T253] ip6_route_output_flags+0x259/0x480 [10017.930895][ T253] inet6_rtm_getroute+0x980/0xf70 [10017.930895][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [10017.930895][ T253] netlink_rcv_skb+0x130/0x360 [10017.930895][ T253] netlink_unicast+0x449/0x710 [10017.930895][ T253] netlink_sendmsg+0x723/0xbe0 [10017.930895][ T253] ____sys_sendmsg+0x7b2/0xa10 [10017.930895][ T253] ___sys_sendmsg+0xee/0x170 [10017.930895][ T253] __sys_sendmsg+0xcd/0x170 [10017.930895][ T253] do_syscall_64+0xc6/0x1e0 [10017.930895][ T253] [10017.934489][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10017.934489][ T253] netdev_get_by_index+0x5e/0x80 [10017.934489][ T253] fib6_nh_init+0x3d8/0x1580 [10017.934489][ T253] ip6_route_info_create+0xf18/0x17d0 [10017.934489][ T253] addrconf_f6i_alloc+0x265/0x560 [10017.934489][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [10017.934489][ T253] addrconf_join_anycast+0x1c0/0x220 [10017.934489][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [10017.934489][ T253] addrconf_dad_completed+0x12b/0xe20 [10017.934489][ T253] addrconf_dad_begin+0x310/0x670 [10017.934489][ T253] addrconf_dad_work+0x10b/0xab0 [10017.934489][ T253] process_one_work+0x84d/0x18a0 [10017.934489][ T253] worker_thread+0x587/0xd30 [10017.934489][ T253] kthread+0x28a/0x350 [10017.934489][ T253] ret_from_fork+0x31/0x70 [10017.934489][ T253] ret_from_fork_asm+0x1a/0x30 [10017.934489][ T253] [10017.938001][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10017.938001][ T253] netdev_get_by_index+0x5e/0x80 [10017.938001][ T253] fib6_nh_init+0x3d8/0x1580 [10017.938001][ T253] ip6_route_info_create+0xf18/0x17d0 [10017.938001][ T253] ip6_route_add+0x1c/0x140 [10017.938001][ T253] addrconf_prefix_route+0x2a6/0x430 [10017.938001][ T253] inet6_addr_add+0x4f8/0xa40 [10017.938001][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10017.938001][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10017.938001][ T253] netlink_rcv_skb+0x130/0x360 [10017.938001][ T253] netlink_unicast+0x449/0x710 [10017.938001][ T253] netlink_sendmsg+0x723/0xbe0 [10017.938001][ T253] ____sys_sendmsg+0x7b2/0xa10 [10017.938001][ T253] ___sys_sendmsg+0xee/0x170 [10017.938001][ T253] __sys_sendmsg+0xcd/0x170 [10017.938001][ T253] do_syscall_64+0xc6/0x1e0 [10017.938001][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10017.938001][ T253] [10017.941676][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10017.941676][ T253] netdev_get_by_index+0x5e/0x80 [10017.941676][ T253] fib6_nh_init+0x3d8/0x1580 [10017.941676][ T253] ip6_route_info_create+0xf18/0x17d0 [10017.941676][ T253] addrconf_f6i_alloc+0x315/0x560 [10017.941676][ T253] ipv6_add_addr+0x411/0x2000 [10017.941676][ T253] inet6_addr_add+0x30e/0xa40 [10017.941676][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10017.941676][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10017.941676][ T253] netlink_rcv_skb+0x130/0x360 [10017.941676][ T253] netlink_unicast+0x449/0x710 [10017.941676][ T253] netlink_sendmsg+0x723/0xbe0 [10017.941676][ T253] ____sys_sendmsg+0x7b2/0xa10 [10017.941676][ T253] ___sys_sendmsg+0xee/0x170 [10017.941676][ T253] __sys_sendmsg+0xcd/0x170 [10017.941676][ T253] do_syscall_64+0xc6/0x1e0 [10017.941676][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10017.941676][ T253] [10017.945389][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10017.945389][ T253] netdev_get_by_index+0x5e/0x80 [10017.945389][ T253] fib6_nh_init+0x3d8/0x1580 [10017.945389][ T253] ip6_route_info_create+0xf18/0x17d0 [10017.945389][ T253] ip6_route_add+0x1c/0x140 [10017.945389][ T253] addrconf_add_mroute+0x1ac/0x2c0 [10017.945389][ T253] addrconf_add_dev+0xe2/0x170 [10017.945389][ T253] inet6_addr_add+0x12f/0xa40 [10017.945389][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10017.945389][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10017.945389][ T253] netlink_rcv_skb+0x130/0x360 [10017.945389][ T253] netlink_unicast+0x449/0x710 [10017.945389][ T253] netlink_sendmsg+0x723/0xbe0 [10017.945389][ T253] ____sys_sendmsg+0x7b2/0xa10 [10017.945389][ T253] ___sys_sendmsg+0xee/0x170 [10017.945389][ T253] __sys_sendmsg+0xcd/0x170 [10017.945389][ T253] do_syscall_64+0xc6/0x1e0 [10017.945389][ T253] [10017.949011][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10017.949011][ T253] ipv6_add_dev+0x3ba/0x11c0 [10017.949011][ T253] ipv6_find_idev+0x102/0x170 [10017.949011][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10017.949011][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10017.949011][ T253] netlink_rcv_skb+0x130/0x360 [10017.949011][ T253] netlink_unicast+0x449/0x710 [10017.949011][ T253] netlink_sendmsg+0x723/0xbe0 [10017.949011][ T253] ____sys_sendmsg+0x7b2/0xa10 [10017.949011][ T253] ___sys_sendmsg+0xee/0x170 [10017.949011][ T253] __sys_sendmsg+0xcd/0x170 [10017.949011][ T253] do_syscall_64+0xc6/0x1e0 [10017.949011][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10017.949011][ T253] [10017.951847][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10017.951847][ T253] neigh_parms_alloc+0x1e5/0x510 [10017.951847][ T253] ipv6_add_dev+0x2fe/0x11c0 [10017.951847][ T253] ipv6_find_idev+0x102/0x170 [10017.951847][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10017.951847][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10017.951847][ T253] netlink_rcv_skb+0x130/0x360 [10017.951847][ T253] netlink_unicast+0x449/0x710 [10017.951847][ T253] netlink_sendmsg+0x723/0xbe0 [10017.951847][ T253] ____sys_sendmsg+0x7b2/0xa10 [10017.951847][ T253] ___sys_sendmsg+0xee/0x170 [10017.951847][ T253] __sys_sendmsg+0xcd/0x170 [10017.951847][ T253] do_syscall_64+0xc6/0x1e0 [10017.951847][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10017.951847][ T253] [10028.194235][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10028.194637][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10028.194637][ T253] dst_init+0x84/0x4a0 [10028.194637][ T253] dst_alloc+0x97/0x150 [10028.194637][ T253] ip6_dst_alloc+0x23/0x90 [10028.194637][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [10028.194637][ T253] ip6_pol_route+0x56f/0x840 [10028.194637][ T253] fib6_rule_lookup+0x334/0x630 [10028.194637][ T253] ip6_route_output_flags+0x259/0x480 [10028.194637][ T253] inet6_rtm_getroute+0x980/0xf70 [10028.194637][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [10028.194637][ T253] netlink_rcv_skb+0x130/0x360 [10028.194637][ T253] netlink_unicast+0x449/0x710 [10028.194637][ T253] netlink_sendmsg+0x723/0xbe0 [10028.194637][ T253] ____sys_sendmsg+0x7b2/0xa10 [10028.194637][ T253] ___sys_sendmsg+0xee/0x170 [10028.194637][ T253] __sys_sendmsg+0xcd/0x170 [10028.194637][ T253] do_syscall_64+0xc6/0x1e0 [10028.194637][ T253] [10028.196840][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10028.196840][ T253] netdev_get_by_index+0x5e/0x80 [10028.196840][ T253] fib6_nh_init+0x3d8/0x1580 [10028.196840][ T253] ip6_route_info_create+0xf18/0x17d0 [10028.196840][ T253] addrconf_f6i_alloc+0x265/0x560 [10028.196840][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [10028.196840][ T253] addrconf_join_anycast+0x1c0/0x220 [10028.196840][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [10028.196840][ T253] addrconf_dad_completed+0x12b/0xe20 [10028.196840][ T253] addrconf_dad_begin+0x310/0x670 [10028.196840][ T253] addrconf_dad_work+0x10b/0xab0 [10028.196840][ T253] process_one_work+0x84d/0x18a0 [10028.196840][ T253] worker_thread+0x587/0xd30 [10028.196840][ T253] kthread+0x28a/0x350 [10028.196840][ T253] ret_from_fork+0x31/0x70 [10028.196840][ T253] ret_from_fork_asm+0x1a/0x30 [10028.196840][ T253] [10028.198984][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10028.198984][ T253] netdev_get_by_index+0x5e/0x80 [10028.198984][ T253] fib6_nh_init+0x3d8/0x1580 [10028.198984][ T253] ip6_route_info_create+0xf18/0x17d0 [10028.198984][ T253] ip6_route_add+0x1c/0x140 [10028.198984][ T253] addrconf_prefix_route+0x2a6/0x430 [10028.198984][ T253] inet6_addr_add+0x4f8/0xa40 [10028.198984][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10028.198984][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10028.198984][ T253] netlink_rcv_skb+0x130/0x360 [10028.198984][ T253] netlink_unicast+0x449/0x710 [10028.198984][ T253] netlink_sendmsg+0x723/0xbe0 [10028.198984][ T253] ____sys_sendmsg+0x7b2/0xa10 [10028.198984][ T253] ___sys_sendmsg+0xee/0x170 [10028.198984][ T253] __sys_sendmsg+0xcd/0x170 [10028.198984][ T253] do_syscall_64+0xc6/0x1e0 [10028.198984][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10028.198984][ T253] [10028.201227][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10028.201227][ T253] netdev_get_by_index+0x5e/0x80 [10028.201227][ T253] fib6_nh_init+0x3d8/0x1580 [10028.201227][ T253] ip6_route_info_create+0xf18/0x17d0 [10028.201227][ T253] addrconf_f6i_alloc+0x315/0x560 [10028.201227][ T253] ipv6_add_addr+0x411/0x2000 [10028.201227][ T253] inet6_addr_add+0x30e/0xa40 [10028.201227][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10028.201227][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10028.201227][ T253] netlink_rcv_skb+0x130/0x360 [10028.201227][ T253] netlink_unicast+0x449/0x710 [10028.201227][ T253] netlink_sendmsg+0x723/0xbe0 [10028.201227][ T253] ____sys_sendmsg+0x7b2/0xa10 [10028.201227][ T253] ___sys_sendmsg+0xee/0x170 [10028.201227][ T253] __sys_sendmsg+0xcd/0x170 [10028.201227][ T253] do_syscall_64+0xc6/0x1e0 [10028.201227][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10028.201227][ T253] [10028.203462][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10028.203462][ T253] netdev_get_by_index+0x5e/0x80 [10028.203462][ T253] fib6_nh_init+0x3d8/0x1580 [10028.203462][ T253] ip6_route_info_create+0xf18/0x17d0 [10028.203462][ T253] ip6_route_add+0x1c/0x140 [10028.203462][ T253] addrconf_add_mroute+0x1ac/0x2c0 [10028.203462][ T253] addrconf_add_dev+0xe2/0x170 [10028.203462][ T253] inet6_addr_add+0x12f/0xa40 [10028.203462][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10028.203462][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10028.203462][ T253] netlink_rcv_skb+0x130/0x360 [10028.203462][ T253] netlink_unicast+0x449/0x710 [10028.203462][ T253] netlink_sendmsg+0x723/0xbe0 [10028.203462][ T253] ____sys_sendmsg+0x7b2/0xa10 [10028.203462][ T253] ___sys_sendmsg+0xee/0x170 [10028.203462][ T253] __sys_sendmsg+0xcd/0x170 [10028.203462][ T253] do_syscall_64+0xc6/0x1e0 [10028.203462][ T253] [10028.205670][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10028.205670][ T253] ipv6_add_dev+0x3ba/0x11c0 [10028.205670][ T253] ipv6_find_idev+0x102/0x170 [10028.205670][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10028.205670][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10028.205670][ T253] netlink_rcv_skb+0x130/0x360 [10028.205670][ T253] netlink_unicast+0x449/0x710 [10028.205670][ T253] netlink_sendmsg+0x723/0xbe0 [10028.205670][ T253] ____sys_sendmsg+0x7b2/0xa10 [10028.205670][ T253] ___sys_sendmsg+0xee/0x170 [10028.205670][ T253] __sys_sendmsg+0xcd/0x170 [10028.205670][ T253] do_syscall_64+0xc6/0x1e0 [10028.205670][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10028.205670][ T253] [10028.207397][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10028.207397][ T253] neigh_parms_alloc+0x1e5/0x510 [10028.207397][ T253] ipv6_add_dev+0x2fe/0x11c0 [10028.207397][ T253] ipv6_find_idev+0x102/0x170 [10028.207397][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10028.207397][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10028.207397][ T253] netlink_rcv_skb+0x130/0x360 [10028.207397][ T253] netlink_unicast+0x449/0x710 [10028.207397][ T253] netlink_sendmsg+0x723/0xbe0 [10028.207397][ T253] ____sys_sendmsg+0x7b2/0xa10 [10028.207397][ T253] ___sys_sendmsg+0xee/0x170 [10028.207397][ T253] __sys_sendmsg+0xcd/0x170 [10028.207397][ T253] do_syscall_64+0xc6/0x1e0 [10028.207397][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10028.207397][ T253] [10038.450263][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10038.450675][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10038.450675][ T253] dst_init+0x84/0x4a0 [10038.450675][ T253] dst_alloc+0x97/0x150 [10038.450675][ T253] ip6_dst_alloc+0x23/0x90 [10038.450675][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [10038.450675][ T253] ip6_pol_route+0x56f/0x840 [10038.450675][ T253] fib6_rule_lookup+0x334/0x630 [10038.450675][ T253] ip6_route_output_flags+0x259/0x480 [10038.450675][ T253] inet6_rtm_getroute+0x980/0xf70 [10038.450675][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [10038.450675][ T253] netlink_rcv_skb+0x130/0x360 [10038.450675][ T253] netlink_unicast+0x449/0x710 [10038.450675][ T253] netlink_sendmsg+0x723/0xbe0 [10038.450675][ T253] ____sys_sendmsg+0x7b2/0xa10 [10038.450675][ T253] ___sys_sendmsg+0xee/0x170 [10038.450675][ T253] __sys_sendmsg+0xcd/0x170 [10038.450675][ T253] do_syscall_64+0xc6/0x1e0 [10038.450675][ T253] [10038.452960][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10038.452960][ T253] netdev_get_by_index+0x5e/0x80 [10038.452960][ T253] fib6_nh_init+0x3d8/0x1580 [10038.452960][ T253] ip6_route_info_create+0xf18/0x17d0 [10038.452960][ T253] addrconf_f6i_alloc+0x265/0x560 [10038.452960][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [10038.452960][ T253] addrconf_join_anycast+0x1c0/0x220 [10038.452960][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [10038.452960][ T253] addrconf_dad_completed+0x12b/0xe20 [10038.452960][ T253] addrconf_dad_begin+0x310/0x670 [10038.452960][ T253] addrconf_dad_work+0x10b/0xab0 [10038.452960][ T253] process_one_work+0x84d/0x18a0 [10038.452960][ T253] worker_thread+0x587/0xd30 [10038.452960][ T253] kthread+0x28a/0x350 [10038.452960][ T253] ret_from_fork+0x31/0x70 [10038.452960][ T253] ret_from_fork_asm+0x1a/0x30 [10038.452960][ T253] [10038.455113][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10038.455113][ T253] netdev_get_by_index+0x5e/0x80 [10038.455113][ T253] fib6_nh_init+0x3d8/0x1580 [10038.455113][ T253] ip6_route_info_create+0xf18/0x17d0 [10038.455113][ T253] ip6_route_add+0x1c/0x140 [10038.455113][ T253] addrconf_prefix_route+0x2a6/0x430 [10038.455113][ T253] inet6_addr_add+0x4f8/0xa40 [10038.455113][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10038.455113][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10038.455113][ T253] netlink_rcv_skb+0x130/0x360 [10038.455113][ T253] netlink_unicast+0x449/0x710 [10038.455113][ T253] netlink_sendmsg+0x723/0xbe0 [10038.455113][ T253] ____sys_sendmsg+0x7b2/0xa10 [10038.455113][ T253] ___sys_sendmsg+0xee/0x170 [10038.455113][ T253] __sys_sendmsg+0xcd/0x170 [10038.455113][ T253] do_syscall_64+0xc6/0x1e0 [10038.455113][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10038.455113][ T253] [10038.457353][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10038.457353][ T253] netdev_get_by_index+0x5e/0x80 [10038.457353][ T253] fib6_nh_init+0x3d8/0x1580 [10038.457353][ T253] ip6_route_info_create+0xf18/0x17d0 [10038.457353][ T253] addrconf_f6i_alloc+0x315/0x560 [10038.457353][ T253] ipv6_add_addr+0x411/0x2000 [10038.457353][ T253] inet6_addr_add+0x30e/0xa40 [10038.457353][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10038.457353][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10038.457353][ T253] netlink_rcv_skb+0x130/0x360 [10038.457353][ T253] netlink_unicast+0x449/0x710 [10038.457353][ T253] netlink_sendmsg+0x723/0xbe0 [10038.457353][ T253] ____sys_sendmsg+0x7b2/0xa10 [10038.457353][ T253] ___sys_sendmsg+0xee/0x170 [10038.457353][ T253] __sys_sendmsg+0xcd/0x170 [10038.457353][ T253] do_syscall_64+0xc6/0x1e0 [10038.457353][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10038.457353][ T253] [10038.459596][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10038.459596][ T253] netdev_get_by_index+0x5e/0x80 [10038.459596][ T253] fib6_nh_init+0x3d8/0x1580 [10038.459596][ T253] ip6_route_info_create+0xf18/0x17d0 [10038.459596][ T253] ip6_route_add+0x1c/0x140 [10038.459596][ T253] addrconf_add_mroute+0x1ac/0x2c0 [10038.459596][ T253] addrconf_add_dev+0xe2/0x170 [10038.459596][ T253] inet6_addr_add+0x12f/0xa40 [10038.459596][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10038.459596][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10038.459596][ T253] netlink_rcv_skb+0x130/0x360 [10038.459596][ T253] netlink_unicast+0x449/0x710 [10038.459596][ T253] netlink_sendmsg+0x723/0xbe0 [10038.459596][ T253] ____sys_sendmsg+0x7b2/0xa10 [10038.459596][ T253] ___sys_sendmsg+0xee/0x170 [10038.459596][ T253] __sys_sendmsg+0xcd/0x170 [10038.459596][ T253] do_syscall_64+0xc6/0x1e0 [10038.459596][ T253] [10038.461799][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10038.461799][ T253] ipv6_add_dev+0x3ba/0x11c0 [10038.461799][ T253] ipv6_find_idev+0x102/0x170 [10038.461799][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10038.461799][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10038.461799][ T253] netlink_rcv_skb+0x130/0x360 [10038.461799][ T253] netlink_unicast+0x449/0x710 [10038.461799][ T253] netlink_sendmsg+0x723/0xbe0 [10038.461799][ T253] ____sys_sendmsg+0x7b2/0xa10 [10038.461799][ T253] ___sys_sendmsg+0xee/0x170 [10038.461799][ T253] __sys_sendmsg+0xcd/0x170 [10038.461799][ T253] do_syscall_64+0xc6/0x1e0 [10038.461799][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10038.461799][ T253] [10038.463521][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10038.463521][ T253] neigh_parms_alloc+0x1e5/0x510 [10038.463521][ T253] ipv6_add_dev+0x2fe/0x11c0 [10038.463521][ T253] ipv6_find_idev+0x102/0x170 [10038.463521][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10038.463521][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10038.463521][ T253] netlink_rcv_skb+0x130/0x360 [10038.463521][ T253] netlink_unicast+0x449/0x710 [10038.463521][ T253] netlink_sendmsg+0x723/0xbe0 [10038.463521][ T253] ____sys_sendmsg+0x7b2/0xa10 [10038.463521][ T253] ___sys_sendmsg+0xee/0x170 [10038.463521][ T253] __sys_sendmsg+0xcd/0x170 [10038.463521][ T253] do_syscall_64+0xc6/0x1e0 [10038.463521][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10038.463521][ T253] [10048.706376][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10048.706851][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10048.706851][ T253] dst_init+0x84/0x4a0 [10048.706851][ T253] dst_alloc+0x97/0x150 [10048.706851][ T253] ip6_dst_alloc+0x23/0x90 [10048.706851][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [10048.706851][ T253] ip6_pol_route+0x56f/0x840 [10048.706851][ T253] fib6_rule_lookup+0x334/0x630 [10048.706851][ T253] ip6_route_output_flags+0x259/0x480 [10048.706851][ T253] inet6_rtm_getroute+0x980/0xf70 [10048.706851][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [10048.706851][ T253] netlink_rcv_skb+0x130/0x360 [10048.706851][ T253] netlink_unicast+0x449/0x710 [10048.706851][ T253] netlink_sendmsg+0x723/0xbe0 [10048.706851][ T253] ____sys_sendmsg+0x7b2/0xa10 [10048.706851][ T253] ___sys_sendmsg+0xee/0x170 [10048.706851][ T253] __sys_sendmsg+0xcd/0x170 [10048.706851][ T253] do_syscall_64+0xc6/0x1e0 [10048.706851][ T253] [10048.709062][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10048.709062][ T253] netdev_get_by_index+0x5e/0x80 [10048.709062][ T253] fib6_nh_init+0x3d8/0x1580 [10048.709062][ T253] ip6_route_info_create+0xf18/0x17d0 [10048.709062][ T253] addrconf_f6i_alloc+0x265/0x560 [10048.709062][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [10048.709062][ T253] addrconf_join_anycast+0x1c0/0x220 [10048.709062][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [10048.709062][ T253] addrconf_dad_completed+0x12b/0xe20 [10048.709062][ T253] addrconf_dad_begin+0x310/0x670 [10048.709062][ T253] addrconf_dad_work+0x10b/0xab0 [10048.709062][ T253] process_one_work+0x84d/0x18a0 [10048.709062][ T253] worker_thread+0x587/0xd30 [10048.709062][ T253] kthread+0x28a/0x350 [10048.709062][ T253] ret_from_fork+0x31/0x70 [10048.709062][ T253] ret_from_fork_asm+0x1a/0x30 [10048.709062][ T253] [10048.711205][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10048.711205][ T253] netdev_get_by_index+0x5e/0x80 [10048.711205][ T253] fib6_nh_init+0x3d8/0x1580 [10048.711205][ T253] ip6_route_info_create+0xf18/0x17d0 [10048.711205][ T253] ip6_route_add+0x1c/0x140 [10048.711205][ T253] addrconf_prefix_route+0x2a6/0x430 [10048.711205][ T253] inet6_addr_add+0x4f8/0xa40 [10048.711205][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10048.711205][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10048.711205][ T253] netlink_rcv_skb+0x130/0x360 [10048.711205][ T253] netlink_unicast+0x449/0x710 [10048.711205][ T253] netlink_sendmsg+0x723/0xbe0 [10048.711205][ T253] ____sys_sendmsg+0x7b2/0xa10 [10048.711205][ T253] ___sys_sendmsg+0xee/0x170 [10048.711205][ T253] __sys_sendmsg+0xcd/0x170 [10048.711205][ T253] do_syscall_64+0xc6/0x1e0 [10048.711205][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10048.711205][ T253] [10048.713452][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10048.713452][ T253] netdev_get_by_index+0x5e/0x80 [10048.713452][ T253] fib6_nh_init+0x3d8/0x1580 [10048.713452][ T253] ip6_route_info_create+0xf18/0x17d0 [10048.713452][ T253] addrconf_f6i_alloc+0x315/0x560 [10048.713452][ T253] ipv6_add_addr+0x411/0x2000 [10048.713452][ T253] inet6_addr_add+0x30e/0xa40 [10048.713452][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10048.713452][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10048.713452][ T253] netlink_rcv_skb+0x130/0x360 [10048.713452][ T253] netlink_unicast+0x449/0x710 [10048.713452][ T253] netlink_sendmsg+0x723/0xbe0 [10048.713452][ T253] ____sys_sendmsg+0x7b2/0xa10 [10048.713452][ T253] ___sys_sendmsg+0xee/0x170 [10048.713452][ T253] __sys_sendmsg+0xcd/0x170 [10048.713452][ T253] do_syscall_64+0xc6/0x1e0 [10048.713452][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10048.713452][ T253] [10048.715699][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10048.715699][ T253] netdev_get_by_index+0x5e/0x80 [10048.715699][ T253] fib6_nh_init+0x3d8/0x1580 [10048.715699][ T253] ip6_route_info_create+0xf18/0x17d0 [10048.715699][ T253] ip6_route_add+0x1c/0x140 [10048.715699][ T253] addrconf_add_mroute+0x1ac/0x2c0 [10048.715699][ T253] addrconf_add_dev+0xe2/0x170 [10048.715699][ T253] inet6_addr_add+0x12f/0xa40 [10048.715699][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10048.715699][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10048.715699][ T253] netlink_rcv_skb+0x130/0x360 [10048.715699][ T253] netlink_unicast+0x449/0x710 [10048.715699][ T253] netlink_sendmsg+0x723/0xbe0 [10048.715699][ T253] ____sys_sendmsg+0x7b2/0xa10 [10048.715699][ T253] ___sys_sendmsg+0xee/0x170 [10048.715699][ T253] __sys_sendmsg+0xcd/0x170 [10048.715699][ T253] do_syscall_64+0xc6/0x1e0 [10048.715699][ T253] [10048.718423][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10048.718423][ T253] ipv6_add_dev+0x3ba/0x11c0 [10048.718423][ T253] ipv6_find_idev+0x102/0x170 [10048.718423][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10048.718423][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10048.718423][ T253] netlink_rcv_skb+0x130/0x360 [10048.718423][ T253] netlink_unicast+0x449/0x710 [10048.718423][ T253] netlink_sendmsg+0x723/0xbe0 [10048.718423][ T253] ____sys_sendmsg+0x7b2/0xa10 [10048.718423][ T253] ___sys_sendmsg+0xee/0x170 [10048.718423][ T253] __sys_sendmsg+0xcd/0x170 [10048.718423][ T253] do_syscall_64+0xc6/0x1e0 [10048.718423][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10048.718423][ T253] [10048.720147][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10048.720147][ T253] neigh_parms_alloc+0x1e5/0x510 [10048.720147][ T253] ipv6_add_dev+0x2fe/0x11c0 [10048.720147][ T253] ipv6_find_idev+0x102/0x170 [10048.720147][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10048.720147][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10048.720147][ T253] netlink_rcv_skb+0x130/0x360 [10048.720147][ T253] netlink_unicast+0x449/0x710 [10048.720147][ T253] netlink_sendmsg+0x723/0xbe0 [10048.720147][ T253] ____sys_sendmsg+0x7b2/0xa10 [10048.720147][ T253] ___sys_sendmsg+0xee/0x170 [10048.720147][ T253] __sys_sendmsg+0xcd/0x170 [10048.720147][ T253] do_syscall_64+0xc6/0x1e0 [10048.720147][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10048.720147][ T253] [10058.818402][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10058.818883][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10058.818883][ T253] dst_init+0x84/0x4a0 [10058.818883][ T253] dst_alloc+0x97/0x150 [10058.818883][ T253] ip6_dst_alloc+0x23/0x90 [10058.818883][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [10058.818883][ T253] ip6_pol_route+0x56f/0x840 [10058.818883][ T253] fib6_rule_lookup+0x334/0x630 [10058.818883][ T253] ip6_route_output_flags+0x259/0x480 [10058.818883][ T253] inet6_rtm_getroute+0x980/0xf70 [10058.818883][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [10058.818883][ T253] netlink_rcv_skb+0x130/0x360 [10058.818883][ T253] netlink_unicast+0x449/0x710 [10058.818883][ T253] netlink_sendmsg+0x723/0xbe0 [10058.818883][ T253] ____sys_sendmsg+0x7b2/0xa10 [10058.818883][ T253] ___sys_sendmsg+0xee/0x170 [10058.818883][ T253] __sys_sendmsg+0xcd/0x170 [10058.818883][ T253] do_syscall_64+0xc6/0x1e0 [10058.818883][ T253] [10058.821084][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10058.821084][ T253] netdev_get_by_index+0x5e/0x80 [10058.821084][ T253] fib6_nh_init+0x3d8/0x1580 [10058.821084][ T253] ip6_route_info_create+0xf18/0x17d0 [10058.821084][ T253] addrconf_f6i_alloc+0x265/0x560 [10058.821084][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [10058.821084][ T253] addrconf_join_anycast+0x1c0/0x220 [10058.821084][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [10058.821084][ T253] addrconf_dad_completed+0x12b/0xe20 [10058.821084][ T253] addrconf_dad_begin+0x310/0x670 [10058.821084][ T253] addrconf_dad_work+0x10b/0xab0 [10058.821084][ T253] process_one_work+0x84d/0x18a0 [10058.821084][ T253] worker_thread+0x587/0xd30 [10058.821084][ T253] kthread+0x28a/0x350 [10058.821084][ T253] ret_from_fork+0x31/0x70 [10058.821084][ T253] ret_from_fork_asm+0x1a/0x30 [10058.821084][ T253] [10058.823235][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10058.823235][ T253] netdev_get_by_index+0x5e/0x80 [10058.823235][ T253] fib6_nh_init+0x3d8/0x1580 [10058.823235][ T253] ip6_route_info_create+0xf18/0x17d0 [10058.823235][ T253] ip6_route_add+0x1c/0x140 [10058.823235][ T253] addrconf_prefix_route+0x2a6/0x430 [10058.823235][ T253] inet6_addr_add+0x4f8/0xa40 [10058.823235][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10058.823235][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10058.823235][ T253] netlink_rcv_skb+0x130/0x360 [10058.823235][ T253] netlink_unicast+0x449/0x710 [10058.823235][ T253] netlink_sendmsg+0x723/0xbe0 [10058.823235][ T253] ____sys_sendmsg+0x7b2/0xa10 [10058.823235][ T253] ___sys_sendmsg+0xee/0x170 [10058.823235][ T253] __sys_sendmsg+0xcd/0x170 [10058.823235][ T253] do_syscall_64+0xc6/0x1e0 [10058.823235][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10058.823235][ T253] [10058.825505][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10058.825505][ T253] netdev_get_by_index+0x5e/0x80 [10058.825505][ T253] fib6_nh_init+0x3d8/0x1580 [10058.825505][ T253] ip6_route_info_create+0xf18/0x17d0 [10058.825505][ T253] addrconf_f6i_alloc+0x315/0x560 [10058.825505][ T253] ipv6_add_addr+0x411/0x2000 [10058.825505][ T253] inet6_addr_add+0x30e/0xa40 [10058.825505][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10058.825505][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10058.825505][ T253] netlink_rcv_skb+0x130/0x360 [10058.825505][ T253] netlink_unicast+0x449/0x710 [10058.825505][ T253] netlink_sendmsg+0x723/0xbe0 [10058.825505][ T253] ____sys_sendmsg+0x7b2/0xa10 [10058.825505][ T253] ___sys_sendmsg+0xee/0x170 [10058.825505][ T253] __sys_sendmsg+0xcd/0x170 [10058.825505][ T253] do_syscall_64+0xc6/0x1e0 [10058.825505][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10058.825505][ T253] [10058.827755][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10058.827755][ T253] netdev_get_by_index+0x5e/0x80 [10058.827755][ T253] fib6_nh_init+0x3d8/0x1580 [10058.827755][ T253] ip6_route_info_create+0xf18/0x17d0 [10058.827755][ T253] ip6_route_add+0x1c/0x140 [10058.827755][ T253] addrconf_add_mroute+0x1ac/0x2c0 [10058.827755][ T253] addrconf_add_dev+0xe2/0x170 [10058.827755][ T253] inet6_addr_add+0x12f/0xa40 [10058.827755][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10058.827755][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10058.827755][ T253] netlink_rcv_skb+0x130/0x360 [10058.827755][ T253] netlink_unicast+0x449/0x710 [10058.827755][ T253] netlink_sendmsg+0x723/0xbe0 [10058.827755][ T253] ____sys_sendmsg+0x7b2/0xa10 [10058.827755][ T253] ___sys_sendmsg+0xee/0x170 [10058.827755][ T253] __sys_sendmsg+0xcd/0x170 [10058.827755][ T253] do_syscall_64+0xc6/0x1e0 [10058.827755][ T253] [10058.829961][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10058.829961][ T253] ipv6_add_dev+0x3ba/0x11c0 [10058.829961][ T253] ipv6_find_idev+0x102/0x170 [10058.829961][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10058.829961][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10058.829961][ T253] netlink_rcv_skb+0x130/0x360 [10058.829961][ T253] netlink_unicast+0x449/0x710 [10058.829961][ T253] netlink_sendmsg+0x723/0xbe0 [10058.829961][ T253] ____sys_sendmsg+0x7b2/0xa10 [10058.829961][ T253] ___sys_sendmsg+0xee/0x170 [10058.829961][ T253] __sys_sendmsg+0xcd/0x170 [10058.829961][ T253] do_syscall_64+0xc6/0x1e0 [10058.829961][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10058.829961][ T253] [10058.831704][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10058.831704][ T253] neigh_parms_alloc+0x1e5/0x510 [10058.831704][ T253] ipv6_add_dev+0x2fe/0x11c0 [10058.831704][ T253] ipv6_find_idev+0x102/0x170 [10058.831704][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10058.831704][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10058.831704][ T253] netlink_rcv_skb+0x130/0x360 [10058.831704][ T253] netlink_unicast+0x449/0x710 [10058.831704][ T253] netlink_sendmsg+0x723/0xbe0 [10058.831704][ T253] ____sys_sendmsg+0x7b2/0xa10 [10058.831704][ T253] ___sys_sendmsg+0xee/0x170 [10058.831704][ T253] __sys_sendmsg+0xcd/0x170 [10058.831704][ T253] do_syscall_64+0xc6/0x1e0 [10058.831704][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10058.831704][ T253] [10069.074258][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10069.074730][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10069.074730][ T253] dst_init+0x84/0x4a0 [10069.074730][ T253] dst_alloc+0x97/0x150 [10069.074730][ T253] ip6_dst_alloc+0x23/0x90 [10069.074730][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [10069.074730][ T253] ip6_pol_route+0x56f/0x840 [10069.074730][ T253] fib6_rule_lookup+0x334/0x630 [10069.074730][ T253] ip6_route_output_flags+0x259/0x480 [10069.074730][ T253] inet6_rtm_getroute+0x980/0xf70 [10069.074730][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [10069.074730][ T253] netlink_rcv_skb+0x130/0x360 [10069.074730][ T253] netlink_unicast+0x449/0x710 [10069.074730][ T253] netlink_sendmsg+0x723/0xbe0 [10069.074730][ T253] ____sys_sendmsg+0x7b2/0xa10 [10069.074730][ T253] ___sys_sendmsg+0xee/0x170 [10069.074730][ T253] __sys_sendmsg+0xcd/0x170 [10069.074730][ T253] do_syscall_64+0xc6/0x1e0 [10069.074730][ T253] [10069.076926][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10069.076926][ T253] netdev_get_by_index+0x5e/0x80 [10069.076926][ T253] fib6_nh_init+0x3d8/0x1580 [10069.076926][ T253] ip6_route_info_create+0xf18/0x17d0 [10069.076926][ T253] addrconf_f6i_alloc+0x265/0x560 [10069.076926][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [10069.076926][ T253] addrconf_join_anycast+0x1c0/0x220 [10069.076926][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [10069.076926][ T253] addrconf_dad_completed+0x12b/0xe20 [10069.076926][ T253] addrconf_dad_begin+0x310/0x670 [10069.076926][ T253] addrconf_dad_work+0x10b/0xab0 [10069.076926][ T253] process_one_work+0x84d/0x18a0 [10069.076926][ T253] worker_thread+0x587/0xd30 [10069.076926][ T253] kthread+0x28a/0x350 [10069.076926][ T253] ret_from_fork+0x31/0x70 [10069.076926][ T253] ret_from_fork_asm+0x1a/0x30 [10069.076926][ T253] [10069.079081][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10069.079081][ T253] netdev_get_by_index+0x5e/0x80 [10069.079081][ T253] fib6_nh_init+0x3d8/0x1580 [10069.079081][ T253] ip6_route_info_create+0xf18/0x17d0 [10069.079081][ T253] ip6_route_add+0x1c/0x140 [10069.079081][ T253] addrconf_prefix_route+0x2a6/0x430 [10069.079081][ T253] inet6_addr_add+0x4f8/0xa40 [10069.079081][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10069.079081][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10069.079081][ T253] netlink_rcv_skb+0x130/0x360 [10069.079081][ T253] netlink_unicast+0x449/0x710 [10069.079081][ T253] netlink_sendmsg+0x723/0xbe0 [10069.079081][ T253] ____sys_sendmsg+0x7b2/0xa10 [10069.079081][ T253] ___sys_sendmsg+0xee/0x170 [10069.079081][ T253] __sys_sendmsg+0xcd/0x170 [10069.079081][ T253] do_syscall_64+0xc6/0x1e0 [10069.079081][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10069.079081][ T253] [10069.081345][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10069.081345][ T253] netdev_get_by_index+0x5e/0x80 [10069.081345][ T253] fib6_nh_init+0x3d8/0x1580 [10069.081345][ T253] ip6_route_info_create+0xf18/0x17d0 [10069.081345][ T253] addrconf_f6i_alloc+0x315/0x560 [10069.081345][ T253] ipv6_add_addr+0x411/0x2000 [10069.081345][ T253] inet6_addr_add+0x30e/0xa40 [10069.081345][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10069.081345][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10069.081345][ T253] netlink_rcv_skb+0x130/0x360 [10069.081345][ T253] netlink_unicast+0x449/0x710 [10069.081345][ T253] netlink_sendmsg+0x723/0xbe0 [10069.081345][ T253] ____sys_sendmsg+0x7b2/0xa10 [10069.081345][ T253] ___sys_sendmsg+0xee/0x170 [10069.081345][ T253] __sys_sendmsg+0xcd/0x170 [10069.081345][ T253] do_syscall_64+0xc6/0x1e0 [10069.081345][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10069.081345][ T253] [10069.083600][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10069.083600][ T253] netdev_get_by_index+0x5e/0x80 [10069.083600][ T253] fib6_nh_init+0x3d8/0x1580 [10069.083600][ T253] ip6_route_info_create+0xf18/0x17d0 [10069.083600][ T253] ip6_route_add+0x1c/0x140 [10069.083600][ T253] addrconf_add_mroute+0x1ac/0x2c0 [10069.083600][ T253] addrconf_add_dev+0xe2/0x170 [10069.083600][ T253] inet6_addr_add+0x12f/0xa40 [10069.083600][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10069.083600][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10069.083600][ T253] netlink_rcv_skb+0x130/0x360 [10069.083600][ T253] netlink_unicast+0x449/0x710 [10069.083600][ T253] netlink_sendmsg+0x723/0xbe0 [10069.083600][ T253] ____sys_sendmsg+0x7b2/0xa10 [10069.083600][ T253] ___sys_sendmsg+0xee/0x170 [10069.083600][ T253] __sys_sendmsg+0xcd/0x170 [10069.083600][ T253] do_syscall_64+0xc6/0x1e0 [10069.083600][ T253] [10069.085813][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10069.085813][ T253] ipv6_add_dev+0x3ba/0x11c0 [10069.085813][ T253] ipv6_find_idev+0x102/0x170 [10069.085813][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10069.085813][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10069.085813][ T253] netlink_rcv_skb+0x130/0x360 [10069.085813][ T253] netlink_unicast+0x449/0x710 [10069.085813][ T253] netlink_sendmsg+0x723/0xbe0 [10069.085813][ T253] ____sys_sendmsg+0x7b2/0xa10 [10069.085813][ T253] ___sys_sendmsg+0xee/0x170 [10069.085813][ T253] __sys_sendmsg+0xcd/0x170 [10069.085813][ T253] do_syscall_64+0xc6/0x1e0 [10069.085813][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10069.085813][ T253] [10069.087539][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10069.087539][ T253] neigh_parms_alloc+0x1e5/0x510 [10069.087539][ T253] ipv6_add_dev+0x2fe/0x11c0 [10069.087539][ T253] ipv6_find_idev+0x102/0x170 [10069.087539][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10069.087539][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10069.087539][ T253] netlink_rcv_skb+0x130/0x360 [10069.087539][ T253] netlink_unicast+0x449/0x710 [10069.087539][ T253] netlink_sendmsg+0x723/0xbe0 [10069.087539][ T253] ____sys_sendmsg+0x7b2/0xa10 [10069.087539][ T253] ___sys_sendmsg+0xee/0x170 [10069.087539][ T253] __sys_sendmsg+0xcd/0x170 [10069.087539][ T253] do_syscall_64+0xc6/0x1e0 [10069.087539][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10069.087539][ T253] [10079.314243][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10079.314719][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10079.314719][ T253] dst_init+0x84/0x4a0 [10079.314719][ T253] dst_alloc+0x97/0x150 [10079.314719][ T253] ip6_dst_alloc+0x23/0x90 [10079.314719][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [10079.314719][ T253] ip6_pol_route+0x56f/0x840 [10079.314719][ T253] fib6_rule_lookup+0x334/0x630 [10079.314719][ T253] ip6_route_output_flags+0x259/0x480 [10079.314719][ T253] inet6_rtm_getroute+0x980/0xf70 [10079.314719][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [10079.314719][ T253] netlink_rcv_skb+0x130/0x360 [10079.314719][ T253] netlink_unicast+0x449/0x710 [10079.314719][ T253] netlink_sendmsg+0x723/0xbe0 [10079.314719][ T253] ____sys_sendmsg+0x7b2/0xa10 [10079.314719][ T253] ___sys_sendmsg+0xee/0x170 [10079.314719][ T253] __sys_sendmsg+0xcd/0x170 [10079.314719][ T253] do_syscall_64+0xc6/0x1e0 [10079.314719][ T253] [10079.316909][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10079.316909][ T253] netdev_get_by_index+0x5e/0x80 [10079.316909][ T253] fib6_nh_init+0x3d8/0x1580 [10079.316909][ T253] ip6_route_info_create+0xf18/0x17d0 [10079.316909][ T253] addrconf_f6i_alloc+0x265/0x560 [10079.316909][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [10079.316909][ T253] addrconf_join_anycast+0x1c0/0x220 [10079.316909][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [10079.316909][ T253] addrconf_dad_completed+0x12b/0xe20 [10079.316909][ T253] addrconf_dad_begin+0x310/0x670 [10079.316909][ T253] addrconf_dad_work+0x10b/0xab0 [10079.316909][ T253] process_one_work+0x84d/0x18a0 [10079.316909][ T253] worker_thread+0x587/0xd30 [10079.316909][ T253] kthread+0x28a/0x350 [10079.316909][ T253] ret_from_fork+0x31/0x70 [10079.316909][ T253] ret_from_fork_asm+0x1a/0x30 [10079.316909][ T253] [10079.319059][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10079.319059][ T253] netdev_get_by_index+0x5e/0x80 [10079.319059][ T253] fib6_nh_init+0x3d8/0x1580 [10079.319059][ T253] ip6_route_info_create+0xf18/0x17d0 [10079.319059][ T253] ip6_route_add+0x1c/0x140 [10079.319059][ T253] addrconf_prefix_route+0x2a6/0x430 [10079.319059][ T253] inet6_addr_add+0x4f8/0xa40 [10079.319059][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10079.319059][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10079.319059][ T253] netlink_rcv_skb+0x130/0x360 [10079.319059][ T253] netlink_unicast+0x449/0x710 [10079.319059][ T253] netlink_sendmsg+0x723/0xbe0 [10079.319059][ T253] ____sys_sendmsg+0x7b2/0xa10 [10079.319059][ T253] ___sys_sendmsg+0xee/0x170 [10079.319059][ T253] __sys_sendmsg+0xcd/0x170 [10079.319059][ T253] do_syscall_64+0xc6/0x1e0 [10079.319059][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10079.319059][ T253] [10079.321291][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10079.321291][ T253] netdev_get_by_index+0x5e/0x80 [10079.321291][ T253] fib6_nh_init+0x3d8/0x1580 [10079.321291][ T253] ip6_route_info_create+0xf18/0x17d0 [10079.321291][ T253] addrconf_f6i_alloc+0x315/0x560 [10079.321291][ T253] ipv6_add_addr+0x411/0x2000 [10079.321291][ T253] inet6_addr_add+0x30e/0xa40 [10079.321291][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10079.321291][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10079.321291][ T253] netlink_rcv_skb+0x130/0x360 [10079.321291][ T253] netlink_unicast+0x449/0x710 [10079.321291][ T253] netlink_sendmsg+0x723/0xbe0 [10079.321291][ T253] ____sys_sendmsg+0x7b2/0xa10 [10079.321291][ T253] ___sys_sendmsg+0xee/0x170 [10079.321291][ T253] __sys_sendmsg+0xcd/0x170 [10079.321291][ T253] do_syscall_64+0xc6/0x1e0 [10079.321291][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10079.321291][ T253] [10079.323535][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10079.323535][ T253] netdev_get_by_index+0x5e/0x80 [10079.323535][ T253] fib6_nh_init+0x3d8/0x1580 [10079.323535][ T253] ip6_route_info_create+0xf18/0x17d0 [10079.323535][ T253] ip6_route_add+0x1c/0x140 [10079.323535][ T253] addrconf_add_mroute+0x1ac/0x2c0 [10079.323535][ T253] addrconf_add_dev+0xe2/0x170 [10079.323535][ T253] inet6_addr_add+0x12f/0xa40 [10079.323535][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10079.323535][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10079.323535][ T253] netlink_rcv_skb+0x130/0x360 [10079.323535][ T253] netlink_unicast+0x449/0x710 [10079.323535][ T253] netlink_sendmsg+0x723/0xbe0 [10079.323535][ T253] ____sys_sendmsg+0x7b2/0xa10 [10079.323535][ T253] ___sys_sendmsg+0xee/0x170 [10079.323535][ T253] __sys_sendmsg+0xcd/0x170 [10079.323535][ T253] do_syscall_64+0xc6/0x1e0 [10079.323535][ T253] [10079.325727][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10079.325727][ T253] ipv6_add_dev+0x3ba/0x11c0 [10079.325727][ T253] ipv6_find_idev+0x102/0x170 [10079.325727][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10079.325727][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10079.325727][ T253] netlink_rcv_skb+0x130/0x360 [10079.325727][ T253] netlink_unicast+0x449/0x710 [10079.325727][ T253] netlink_sendmsg+0x723/0xbe0 [10079.325727][ T253] ____sys_sendmsg+0x7b2/0xa10 [10079.325727][ T253] ___sys_sendmsg+0xee/0x170 [10079.325727][ T253] __sys_sendmsg+0xcd/0x170 [10079.325727][ T253] do_syscall_64+0xc6/0x1e0 [10079.325727][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10079.325727][ T253] [10079.327447][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10079.327447][ T253] neigh_parms_alloc+0x1e5/0x510 [10079.327447][ T253] ipv6_add_dev+0x2fe/0x11c0 [10079.327447][ T253] ipv6_find_idev+0x102/0x170 [10079.327447][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10079.327447][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10079.327447][ T253] netlink_rcv_skb+0x130/0x360 [10079.327447][ T253] netlink_unicast+0x449/0x710 [10079.327447][ T253] netlink_sendmsg+0x723/0xbe0 [10079.327447][ T253] ____sys_sendmsg+0x7b2/0xa10 [10079.327447][ T253] ___sys_sendmsg+0xee/0x170 [10079.327447][ T253] __sys_sendmsg+0xcd/0x170 [10079.327447][ T253] do_syscall_64+0xc6/0x1e0 [10079.327447][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10079.327447][ T253] [10089.570351][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10089.570821][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10089.570821][ T253] dst_init+0x84/0x4a0 [10089.570821][ T253] dst_alloc+0x97/0x150 [10089.570821][ T253] ip6_dst_alloc+0x23/0x90 [10089.570821][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [10089.570821][ T253] ip6_pol_route+0x56f/0x840 [10089.570821][ T253] fib6_rule_lookup+0x334/0x630 [10089.570821][ T253] ip6_route_output_flags+0x259/0x480 [10089.570821][ T253] inet6_rtm_getroute+0x980/0xf70 [10089.570821][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [10089.570821][ T253] netlink_rcv_skb+0x130/0x360 [10089.570821][ T253] netlink_unicast+0x449/0x710 [10089.570821][ T253] netlink_sendmsg+0x723/0xbe0 [10089.570821][ T253] ____sys_sendmsg+0x7b2/0xa10 [10089.570821][ T253] ___sys_sendmsg+0xee/0x170 [10089.570821][ T253] __sys_sendmsg+0xcd/0x170 [10089.570821][ T253] do_syscall_64+0xc6/0x1e0 [10089.570821][ T253] [10089.573009][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10089.573009][ T253] netdev_get_by_index+0x5e/0x80 [10089.573009][ T253] fib6_nh_init+0x3d8/0x1580 [10089.573009][ T253] ip6_route_info_create+0xf18/0x17d0 [10089.573009][ T253] addrconf_f6i_alloc+0x265/0x560 [10089.573009][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [10089.573009][ T253] addrconf_join_anycast+0x1c0/0x220 [10089.573009][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [10089.573009][ T253] addrconf_dad_completed+0x12b/0xe20 [10089.573009][ T253] addrconf_dad_begin+0x310/0x670 [10089.573009][ T253] addrconf_dad_work+0x10b/0xab0 [10089.573009][ T253] process_one_work+0x84d/0x18a0 [10089.573009][ T253] worker_thread+0x587/0xd30 [10089.573009][ T253] kthread+0x28a/0x350 [10089.573009][ T253] ret_from_fork+0x31/0x70 [10089.573009][ T253] ret_from_fork_asm+0x1a/0x30 [10089.573009][ T253] [10089.575168][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10089.575168][ T253] netdev_get_by_index+0x5e/0x80 [10089.575168][ T253] fib6_nh_init+0x3d8/0x1580 [10089.575168][ T253] ip6_route_info_create+0xf18/0x17d0 [10089.575168][ T253] ip6_route_add+0x1c/0x140 [10089.575168][ T253] addrconf_prefix_route+0x2a6/0x430 [10089.575168][ T253] inet6_addr_add+0x4f8/0xa40 [10089.575168][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10089.575168][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10089.575168][ T253] netlink_rcv_skb+0x130/0x360 [10089.575168][ T253] netlink_unicast+0x449/0x710 [10089.575168][ T253] netlink_sendmsg+0x723/0xbe0 [10089.575168][ T253] ____sys_sendmsg+0x7b2/0xa10 [10089.575168][ T253] ___sys_sendmsg+0xee/0x170 [10089.575168][ T253] __sys_sendmsg+0xcd/0x170 [10089.575168][ T253] do_syscall_64+0xc6/0x1e0 [10089.575168][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10089.575168][ T253] [10089.577417][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10089.577417][ T253] netdev_get_by_index+0x5e/0x80 [10089.577417][ T253] fib6_nh_init+0x3d8/0x1580 [10089.577417][ T253] ip6_route_info_create+0xf18/0x17d0 [10089.577417][ T253] addrconf_f6i_alloc+0x315/0x560 [10089.577417][ T253] ipv6_add_addr+0x411/0x2000 [10089.577417][ T253] inet6_addr_add+0x30e/0xa40 [10089.577417][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10089.577417][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10089.577417][ T253] netlink_rcv_skb+0x130/0x360 [10089.577417][ T253] netlink_unicast+0x449/0x710 [10089.577417][ T253] netlink_sendmsg+0x723/0xbe0 [10089.577417][ T253] ____sys_sendmsg+0x7b2/0xa10 [10089.577417][ T253] ___sys_sendmsg+0xee/0x170 [10089.577417][ T253] __sys_sendmsg+0xcd/0x170 [10089.577417][ T253] do_syscall_64+0xc6/0x1e0 [10089.577417][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10089.577417][ T253] [10089.579702][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10089.579702][ T253] netdev_get_by_index+0x5e/0x80 [10089.579702][ T253] fib6_nh_init+0x3d8/0x1580 [10089.579702][ T253] ip6_route_info_create+0xf18/0x17d0 [10089.579702][ T253] ip6_route_add+0x1c/0x140 [10089.579702][ T253] addrconf_add_mroute+0x1ac/0x2c0 [10089.579702][ T253] addrconf_add_dev+0xe2/0x170 [10089.579702][ T253] inet6_addr_add+0x12f/0xa40 [10089.579702][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10089.579702][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10089.579702][ T253] netlink_rcv_skb+0x130/0x360 [10089.579702][ T253] netlink_unicast+0x449/0x710 [10089.579702][ T253] netlink_sendmsg+0x723/0xbe0 [10089.579702][ T253] ____sys_sendmsg+0x7b2/0xa10 [10089.579702][ T253] ___sys_sendmsg+0xee/0x170 [10089.579702][ T253] __sys_sendmsg+0xcd/0x170 [10089.579702][ T253] do_syscall_64+0xc6/0x1e0 [10089.579702][ T253] [10089.581911][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10089.581911][ T253] ipv6_add_dev+0x3ba/0x11c0 [10089.581911][ T253] ipv6_find_idev+0x102/0x170 [10089.581911][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10089.581911][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10089.581911][ T253] netlink_rcv_skb+0x130/0x360 [10089.581911][ T253] netlink_unicast+0x449/0x710 [10089.581911][ T253] netlink_sendmsg+0x723/0xbe0 [10089.581911][ T253] ____sys_sendmsg+0x7b2/0xa10 [10089.581911][ T253] ___sys_sendmsg+0xee/0x170 [10089.581911][ T253] __sys_sendmsg+0xcd/0x170 [10089.581911][ T253] do_syscall_64+0xc6/0x1e0 [10089.581911][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10089.581911][ T253] [10089.583649][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10089.583649][ T253] neigh_parms_alloc+0x1e5/0x510 [10089.583649][ T253] ipv6_add_dev+0x2fe/0x11c0 [10089.583649][ T253] ipv6_find_idev+0x102/0x170 [10089.583649][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10089.583649][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10089.583649][ T253] netlink_rcv_skb+0x130/0x360 [10089.583649][ T253] netlink_unicast+0x449/0x710 [10089.583649][ T253] netlink_sendmsg+0x723/0xbe0 [10089.583649][ T253] ____sys_sendmsg+0x7b2/0xa10 [10089.583649][ T253] ___sys_sendmsg+0xee/0x170 [10089.583649][ T253] __sys_sendmsg+0xcd/0x170 [10089.583649][ T253] do_syscall_64+0xc6/0x1e0 [10089.583649][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10089.583649][ T253] [10099.826302][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10099.826705][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10099.826705][ T253] dst_init+0x84/0x4a0 [10099.826705][ T253] dst_alloc+0x97/0x150 [10099.826705][ T253] ip6_dst_alloc+0x23/0x90 [10099.826705][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [10099.826705][ T253] ip6_pol_route+0x56f/0x840 [10099.826705][ T253] fib6_rule_lookup+0x334/0x630 [10099.826705][ T253] ip6_route_output_flags+0x259/0x480 [10099.826705][ T253] inet6_rtm_getroute+0x980/0xf70 [10099.826705][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [10099.826705][ T253] netlink_rcv_skb+0x130/0x360 [10099.826705][ T253] netlink_unicast+0x449/0x710 [10099.826705][ T253] netlink_sendmsg+0x723/0xbe0 [10099.826705][ T253] ____sys_sendmsg+0x7b2/0xa10 [10099.826705][ T253] ___sys_sendmsg+0xee/0x170 [10099.826705][ T253] __sys_sendmsg+0xcd/0x170 [10099.826705][ T253] do_syscall_64+0xc6/0x1e0 [10099.826705][ T253] [10099.828938][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10099.828938][ T253] netdev_get_by_index+0x5e/0x80 [10099.828938][ T253] fib6_nh_init+0x3d8/0x1580 [10099.828938][ T253] ip6_route_info_create+0xf18/0x17d0 [10099.828938][ T253] addrconf_f6i_alloc+0x265/0x560 [10099.828938][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [10099.828938][ T253] addrconf_join_anycast+0x1c0/0x220 [10099.828938][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [10099.828938][ T253] addrconf_dad_completed+0x12b/0xe20 [10099.828938][ T253] addrconf_dad_begin+0x310/0x670 [10099.828938][ T253] addrconf_dad_work+0x10b/0xab0 [10099.828938][ T253] process_one_work+0x84d/0x18a0 [10099.828938][ T253] worker_thread+0x587/0xd30 [10099.828938][ T253] kthread+0x28a/0x350 [10099.828938][ T253] ret_from_fork+0x31/0x70 [10099.828938][ T253] ret_from_fork_asm+0x1a/0x30 [10099.828938][ T253] [10099.831108][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10099.831108][ T253] netdev_get_by_index+0x5e/0x80 [10099.831108][ T253] fib6_nh_init+0x3d8/0x1580 [10099.831108][ T253] ip6_route_info_create+0xf18/0x17d0 [10099.831108][ T253] ip6_route_add+0x1c/0x140 [10099.831108][ T253] addrconf_prefix_route+0x2a6/0x430 [10099.831108][ T253] inet6_addr_add+0x4f8/0xa40 [10099.831108][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10099.831108][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10099.831108][ T253] netlink_rcv_skb+0x130/0x360 [10099.831108][ T253] netlink_unicast+0x449/0x710 [10099.831108][ T253] netlink_sendmsg+0x723/0xbe0 [10099.831108][ T253] ____sys_sendmsg+0x7b2/0xa10 [10099.831108][ T253] ___sys_sendmsg+0xee/0x170 [10099.831108][ T253] __sys_sendmsg+0xcd/0x170 [10099.831108][ T253] do_syscall_64+0xc6/0x1e0 [10099.831108][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10099.831108][ T253] [10099.833365][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10099.833365][ T253] netdev_get_by_index+0x5e/0x80 [10099.833365][ T253] fib6_nh_init+0x3d8/0x1580 [10099.833365][ T253] ip6_route_info_create+0xf18/0x17d0 [10099.833365][ T253] addrconf_f6i_alloc+0x315/0x560 [10099.833365][ T253] ipv6_add_addr+0x411/0x2000 [10099.833365][ T253] inet6_addr_add+0x30e/0xa40 [10099.833365][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10099.833365][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10099.833365][ T253] netlink_rcv_skb+0x130/0x360 [10099.833365][ T253] netlink_unicast+0x449/0x710 [10099.833365][ T253] netlink_sendmsg+0x723/0xbe0 [10099.833365][ T253] ____sys_sendmsg+0x7b2/0xa10 [10099.833365][ T253] ___sys_sendmsg+0xee/0x170 [10099.833365][ T253] __sys_sendmsg+0xcd/0x170 [10099.833365][ T253] do_syscall_64+0xc6/0x1e0 [10099.833365][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10099.833365][ T253] [10099.835613][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10099.835613][ T253] netdev_get_by_index+0x5e/0x80 [10099.835613][ T253] fib6_nh_init+0x3d8/0x1580 [10099.835613][ T253] ip6_route_info_create+0xf18/0x17d0 [10099.835613][ T253] ip6_route_add+0x1c/0x140 [10099.835613][ T253] addrconf_add_mroute+0x1ac/0x2c0 [10099.835613][ T253] addrconf_add_dev+0xe2/0x170 [10099.835613][ T253] inet6_addr_add+0x12f/0xa40 [10099.835613][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10099.835613][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10099.835613][ T253] netlink_rcv_skb+0x130/0x360 [10099.835613][ T253] netlink_unicast+0x449/0x710 [10099.835613][ T253] netlink_sendmsg+0x723/0xbe0 [10099.835613][ T253] ____sys_sendmsg+0x7b2/0xa10 [10099.835613][ T253] ___sys_sendmsg+0xee/0x170 [10099.835613][ T253] __sys_sendmsg+0xcd/0x170 [10099.835613][ T253] do_syscall_64+0xc6/0x1e0 [10099.835613][ T253] [10099.837822][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10099.837822][ T253] ipv6_add_dev+0x3ba/0x11c0 [10099.837822][ T253] ipv6_find_idev+0x102/0x170 [10099.837822][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10099.837822][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10099.837822][ T253] netlink_rcv_skb+0x130/0x360 [10099.837822][ T253] netlink_unicast+0x449/0x710 [10099.837822][ T253] netlink_sendmsg+0x723/0xbe0 [10099.837822][ T253] ____sys_sendmsg+0x7b2/0xa10 [10099.837822][ T253] ___sys_sendmsg+0xee/0x170 [10099.837822][ T253] __sys_sendmsg+0xcd/0x170 [10099.837822][ T253] do_syscall_64+0xc6/0x1e0 [10099.837822][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10099.837822][ T253] [10099.839548][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10099.839548][ T253] neigh_parms_alloc+0x1e5/0x510 [10099.839548][ T253] ipv6_add_dev+0x2fe/0x11c0 [10099.839548][ T253] ipv6_find_idev+0x102/0x170 [10099.839548][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10099.839548][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10099.839548][ T253] netlink_rcv_skb+0x130/0x360 [10099.839548][ T253] netlink_unicast+0x449/0x710 [10099.839548][ T253] netlink_sendmsg+0x723/0xbe0 [10099.839548][ T253] ____sys_sendmsg+0x7b2/0xa10 [10099.839548][ T253] ___sys_sendmsg+0xee/0x170 [10099.839548][ T253] __sys_sendmsg+0xcd/0x170 [10099.839548][ T253] do_syscall_64+0xc6/0x1e0 [10099.839548][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10099.839548][ T253] [10110.018296][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10110.018705][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10110.018705][ T253] dst_init+0x84/0x4a0 [10110.018705][ T253] dst_alloc+0x97/0x150 [10110.018705][ T253] ip6_dst_alloc+0x23/0x90 [10110.018705][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [10110.018705][ T253] ip6_pol_route+0x56f/0x840 [10110.018705][ T253] fib6_rule_lookup+0x334/0x630 [10110.018705][ T253] ip6_route_output_flags+0x259/0x480 [10110.018705][ T253] inet6_rtm_getroute+0x980/0xf70 [10110.018705][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [10110.018705][ T253] netlink_rcv_skb+0x130/0x360 [10110.018705][ T253] netlink_unicast+0x449/0x710 [10110.018705][ T253] netlink_sendmsg+0x723/0xbe0 [10110.018705][ T253] ____sys_sendmsg+0x7b2/0xa10 [10110.018705][ T253] ___sys_sendmsg+0xee/0x170 [10110.018705][ T253] __sys_sendmsg+0xcd/0x170 [10110.018705][ T253] do_syscall_64+0xc6/0x1e0 [10110.018705][ T253] [10110.020895][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10110.020895][ T253] netdev_get_by_index+0x5e/0x80 [10110.020895][ T253] fib6_nh_init+0x3d8/0x1580 [10110.020895][ T253] ip6_route_info_create+0xf18/0x17d0 [10110.020895][ T253] addrconf_f6i_alloc+0x265/0x560 [10110.020895][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [10110.020895][ T253] addrconf_join_anycast+0x1c0/0x220 [10110.020895][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [10110.020895][ T253] addrconf_dad_completed+0x12b/0xe20 [10110.020895][ T253] addrconf_dad_begin+0x310/0x670 [10110.020895][ T253] addrconf_dad_work+0x10b/0xab0 [10110.020895][ T253] process_one_work+0x84d/0x18a0 [10110.020895][ T253] worker_thread+0x587/0xd30 [10110.020895][ T253] kthread+0x28a/0x350 [10110.020895][ T253] ret_from_fork+0x31/0x70 [10110.020895][ T253] ret_from_fork_asm+0x1a/0x30 [10110.020895][ T253] [10110.023040][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10110.023040][ T253] netdev_get_by_index+0x5e/0x80 [10110.023040][ T253] fib6_nh_init+0x3d8/0x1580 [10110.023040][ T253] ip6_route_info_create+0xf18/0x17d0 [10110.023040][ T253] ip6_route_add+0x1c/0x140 [10110.023040][ T253] addrconf_prefix_route+0x2a6/0x430 [10110.023040][ T253] inet6_addr_add+0x4f8/0xa40 [10110.023040][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10110.023040][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10110.023040][ T253] netlink_rcv_skb+0x130/0x360 [10110.023040][ T253] netlink_unicast+0x449/0x710 [10110.023040][ T253] netlink_sendmsg+0x723/0xbe0 [10110.023040][ T253] ____sys_sendmsg+0x7b2/0xa10 [10110.023040][ T253] ___sys_sendmsg+0xee/0x170 [10110.023040][ T253] __sys_sendmsg+0xcd/0x170 [10110.023040][ T253] do_syscall_64+0xc6/0x1e0 [10110.023040][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10110.023040][ T253] [10110.025301][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10110.025301][ T253] netdev_get_by_index+0x5e/0x80 [10110.025301][ T253] fib6_nh_init+0x3d8/0x1580 [10110.025301][ T253] ip6_route_info_create+0xf18/0x17d0 [10110.025301][ T253] addrconf_f6i_alloc+0x315/0x560 [10110.025301][ T253] ipv6_add_addr+0x411/0x2000 [10110.025301][ T253] inet6_addr_add+0x30e/0xa40 [10110.025301][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10110.025301][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10110.025301][ T253] netlink_rcv_skb+0x130/0x360 [10110.025301][ T253] netlink_unicast+0x449/0x710 [10110.025301][ T253] netlink_sendmsg+0x723/0xbe0 [10110.025301][ T253] ____sys_sendmsg+0x7b2/0xa10 [10110.025301][ T253] ___sys_sendmsg+0xee/0x170 [10110.025301][ T253] __sys_sendmsg+0xcd/0x170 [10110.025301][ T253] do_syscall_64+0xc6/0x1e0 [10110.025301][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10110.025301][ T253] [10110.027546][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10110.027546][ T253] netdev_get_by_index+0x5e/0x80 [10110.027546][ T253] fib6_nh_init+0x3d8/0x1580 [10110.027546][ T253] ip6_route_info_create+0xf18/0x17d0 [10110.027546][ T253] ip6_route_add+0x1c/0x140 [10110.027546][ T253] addrconf_add_mroute+0x1ac/0x2c0 [10110.027546][ T253] addrconf_add_dev+0xe2/0x170 [10110.027546][ T253] inet6_addr_add+0x12f/0xa40 [10110.027546][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10110.027546][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10110.027546][ T253] netlink_rcv_skb+0x130/0x360 [10110.027546][ T253] netlink_unicast+0x449/0x710 [10110.027546][ T253] netlink_sendmsg+0x723/0xbe0 [10110.027546][ T253] ____sys_sendmsg+0x7b2/0xa10 [10110.027546][ T253] ___sys_sendmsg+0xee/0x170 [10110.027546][ T253] __sys_sendmsg+0xcd/0x170 [10110.027546][ T253] do_syscall_64+0xc6/0x1e0 [10110.027546][ T253] [10110.029745][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10110.029745][ T253] ipv6_add_dev+0x3ba/0x11c0 [10110.029745][ T253] ipv6_find_idev+0x102/0x170 [10110.029745][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10110.029745][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10110.029745][ T253] netlink_rcv_skb+0x130/0x360 [10110.029745][ T253] netlink_unicast+0x449/0x710 [10110.029745][ T253] netlink_sendmsg+0x723/0xbe0 [10110.029745][ T253] ____sys_sendmsg+0x7b2/0xa10 [10110.029745][ T253] ___sys_sendmsg+0xee/0x170 [10110.029745][ T253] __sys_sendmsg+0xcd/0x170 [10110.029745][ T253] do_syscall_64+0xc6/0x1e0 [10110.029745][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10110.029745][ T253] [10110.031483][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10110.031483][ T253] neigh_parms_alloc+0x1e5/0x510 [10110.031483][ T253] ipv6_add_dev+0x2fe/0x11c0 [10110.031483][ T253] ipv6_find_idev+0x102/0x170 [10110.031483][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10110.031483][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10110.031483][ T253] netlink_rcv_skb+0x130/0x360 [10110.031483][ T253] netlink_unicast+0x449/0x710 [10110.031483][ T253] netlink_sendmsg+0x723/0xbe0 [10110.031483][ T253] ____sys_sendmsg+0x7b2/0xa10 [10110.031483][ T253] ___sys_sendmsg+0xee/0x170 [10110.031483][ T253] __sys_sendmsg+0xcd/0x170 [10110.031483][ T253] do_syscall_64+0xc6/0x1e0 [10110.031483][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10110.031483][ T253] [10120.282236][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10120.282651][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10120.282651][ T253] dst_init+0x84/0x4a0 [10120.282651][ T253] dst_alloc+0x97/0x150 [10120.282651][ T253] ip6_dst_alloc+0x23/0x90 [10120.282651][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [10120.282651][ T253] ip6_pol_route+0x56f/0x840 [10120.282651][ T253] fib6_rule_lookup+0x334/0x630 [10120.282651][ T253] ip6_route_output_flags+0x259/0x480 [10120.282651][ T253] inet6_rtm_getroute+0x980/0xf70 [10120.282651][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [10120.282651][ T253] netlink_rcv_skb+0x130/0x360 [10120.282651][ T253] netlink_unicast+0x449/0x710 [10120.282651][ T253] netlink_sendmsg+0x723/0xbe0 [10120.282651][ T253] ____sys_sendmsg+0x7b2/0xa10 [10120.282651][ T253] ___sys_sendmsg+0xee/0x170 [10120.282651][ T253] __sys_sendmsg+0xcd/0x170 [10120.282651][ T253] do_syscall_64+0xc6/0x1e0 [10120.282651][ T253] [10120.284850][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10120.284850][ T253] netdev_get_by_index+0x5e/0x80 [10120.284850][ T253] fib6_nh_init+0x3d8/0x1580 [10120.284850][ T253] ip6_route_info_create+0xf18/0x17d0 [10120.284850][ T253] addrconf_f6i_alloc+0x265/0x560 [10120.284850][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [10120.284850][ T253] addrconf_join_anycast+0x1c0/0x220 [10120.284850][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [10120.284850][ T253] addrconf_dad_completed+0x12b/0xe20 [10120.284850][ T253] addrconf_dad_begin+0x310/0x670 [10120.284850][ T253] addrconf_dad_work+0x10b/0xab0 [10120.284850][ T253] process_one_work+0x84d/0x18a0 [10120.284850][ T253] worker_thread+0x587/0xd30 [10120.284850][ T253] kthread+0x28a/0x350 [10120.284850][ T253] ret_from_fork+0x31/0x70 [10120.284850][ T253] ret_from_fork_asm+0x1a/0x30 [10120.284850][ T253] [10120.286988][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10120.286988][ T253] netdev_get_by_index+0x5e/0x80 [10120.286988][ T253] fib6_nh_init+0x3d8/0x1580 [10120.286988][ T253] ip6_route_info_create+0xf18/0x17d0 [10120.286988][ T253] ip6_route_add+0x1c/0x140 [10120.286988][ T253] addrconf_prefix_route+0x2a6/0x430 [10120.286988][ T253] inet6_addr_add+0x4f8/0xa40 [10120.286988][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10120.286988][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10120.286988][ T253] netlink_rcv_skb+0x130/0x360 [10120.286988][ T253] netlink_unicast+0x449/0x710 [10120.286988][ T253] netlink_sendmsg+0x723/0xbe0 [10120.286988][ T253] ____sys_sendmsg+0x7b2/0xa10 [10120.286988][ T253] ___sys_sendmsg+0xee/0x170 [10120.286988][ T253] __sys_sendmsg+0xcd/0x170 [10120.286988][ T253] do_syscall_64+0xc6/0x1e0 [10120.286988][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10120.286988][ T253] [10120.289224][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10120.289224][ T253] netdev_get_by_index+0x5e/0x80 [10120.289224][ T253] fib6_nh_init+0x3d8/0x1580 [10120.289224][ T253] ip6_route_info_create+0xf18/0x17d0 [10120.289224][ T253] addrconf_f6i_alloc+0x315/0x560 [10120.289224][ T253] ipv6_add_addr+0x411/0x2000 [10120.289224][ T253] inet6_addr_add+0x30e/0xa40 [10120.289224][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10120.289224][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10120.289224][ T253] netlink_rcv_skb+0x130/0x360 [10120.289224][ T253] netlink_unicast+0x449/0x710 [10120.289224][ T253] netlink_sendmsg+0x723/0xbe0 [10120.289224][ T253] ____sys_sendmsg+0x7b2/0xa10 [10120.289224][ T253] ___sys_sendmsg+0xee/0x170 [10120.289224][ T253] __sys_sendmsg+0xcd/0x170 [10120.289224][ T253] do_syscall_64+0xc6/0x1e0 [10120.289224][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10120.289224][ T253] [10120.291461][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10120.291461][ T253] netdev_get_by_index+0x5e/0x80 [10120.291461][ T253] fib6_nh_init+0x3d8/0x1580 [10120.291461][ T253] ip6_route_info_create+0xf18/0x17d0 [10120.291461][ T253] ip6_route_add+0x1c/0x140 [10120.291461][ T253] addrconf_add_mroute+0x1ac/0x2c0 [10120.291461][ T253] addrconf_add_dev+0xe2/0x170 [10120.291461][ T253] inet6_addr_add+0x12f/0xa40 [10120.291461][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10120.291461][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10120.291461][ T253] netlink_rcv_skb+0x130/0x360 [10120.291461][ T253] netlink_unicast+0x449/0x710 [10120.291461][ T253] netlink_sendmsg+0x723/0xbe0 [10120.291461][ T253] ____sys_sendmsg+0x7b2/0xa10 [10120.291461][ T253] ___sys_sendmsg+0xee/0x170 [10120.291461][ T253] __sys_sendmsg+0xcd/0x170 [10120.291461][ T253] do_syscall_64+0xc6/0x1e0 [10120.291461][ T253] [10120.293663][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10120.293663][ T253] ipv6_add_dev+0x3ba/0x11c0 [10120.293663][ T253] ipv6_find_idev+0x102/0x170 [10120.293663][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10120.293663][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10120.293663][ T253] netlink_rcv_skb+0x130/0x360 [10120.293663][ T253] netlink_unicast+0x449/0x710 [10120.293663][ T253] netlink_sendmsg+0x723/0xbe0 [10120.293663][ T253] ____sys_sendmsg+0x7b2/0xa10 [10120.293663][ T253] ___sys_sendmsg+0xee/0x170 [10120.293663][ T253] __sys_sendmsg+0xcd/0x170 [10120.293663][ T253] do_syscall_64+0xc6/0x1e0 [10120.293663][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10120.293663][ T253] [10120.295401][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10120.295401][ T253] neigh_parms_alloc+0x1e5/0x510 [10120.295401][ T253] ipv6_add_dev+0x2fe/0x11c0 [10120.295401][ T253] ipv6_find_idev+0x102/0x170 [10120.295401][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10120.295401][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10120.295401][ T253] netlink_rcv_skb+0x130/0x360 [10120.295401][ T253] netlink_unicast+0x449/0x710 [10120.295401][ T253] netlink_sendmsg+0x723/0xbe0 [10120.295401][ T253] ____sys_sendmsg+0x7b2/0xa10 [10120.295401][ T253] ___sys_sendmsg+0xee/0x170 [10120.295401][ T253] __sys_sendmsg+0xcd/0x170 [10120.295401][ T253] do_syscall_64+0xc6/0x1e0 [10120.295401][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10120.295401][ T253] [10130.386310][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10130.386714][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10130.386714][ T253] dst_init+0x84/0x4a0 [10130.386714][ T253] dst_alloc+0x97/0x150 [10130.386714][ T253] ip6_dst_alloc+0x23/0x90 [10130.386714][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [10130.386714][ T253] ip6_pol_route+0x56f/0x840 [10130.386714][ T253] fib6_rule_lookup+0x334/0x630 [10130.386714][ T253] ip6_route_output_flags+0x259/0x480 [10130.386714][ T253] inet6_rtm_getroute+0x980/0xf70 [10130.386714][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [10130.386714][ T253] netlink_rcv_skb+0x130/0x360 [10130.386714][ T253] netlink_unicast+0x449/0x710 [10130.386714][ T253] netlink_sendmsg+0x723/0xbe0 [10130.386714][ T253] ____sys_sendmsg+0x7b2/0xa10 [10130.386714][ T253] ___sys_sendmsg+0xee/0x170 [10130.386714][ T253] __sys_sendmsg+0xcd/0x170 [10130.386714][ T253] do_syscall_64+0xc6/0x1e0 [10130.386714][ T253] [10130.388913][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10130.388913][ T253] netdev_get_by_index+0x5e/0x80 [10130.388913][ T253] fib6_nh_init+0x3d8/0x1580 [10130.388913][ T253] ip6_route_info_create+0xf18/0x17d0 [10130.388913][ T253] addrconf_f6i_alloc+0x265/0x560 [10130.388913][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [10130.388913][ T253] addrconf_join_anycast+0x1c0/0x220 [10130.388913][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [10130.388913][ T253] addrconf_dad_completed+0x12b/0xe20 [10130.388913][ T253] addrconf_dad_begin+0x310/0x670 [10130.388913][ T253] addrconf_dad_work+0x10b/0xab0 [10130.388913][ T253] process_one_work+0x84d/0x18a0 [10130.388913][ T253] worker_thread+0x587/0xd30 [10130.388913][ T253] kthread+0x28a/0x350 [10130.388913][ T253] ret_from_fork+0x31/0x70 [10130.388913][ T253] ret_from_fork_asm+0x1a/0x30 [10130.388913][ T253] [10130.391068][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10130.391068][ T253] netdev_get_by_index+0x5e/0x80 [10130.391068][ T253] fib6_nh_init+0x3d8/0x1580 [10130.391068][ T253] ip6_route_info_create+0xf18/0x17d0 [10130.391068][ T253] ip6_route_add+0x1c/0x140 [10130.391068][ T253] addrconf_prefix_route+0x2a6/0x430 [10130.391068][ T253] inet6_addr_add+0x4f8/0xa40 [10130.391068][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10130.391068][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10130.391068][ T253] netlink_rcv_skb+0x130/0x360 [10130.391068][ T253] netlink_unicast+0x449/0x710 [10130.391068][ T253] netlink_sendmsg+0x723/0xbe0 [10130.391068][ T253] ____sys_sendmsg+0x7b2/0xa10 [10130.391068][ T253] ___sys_sendmsg+0xee/0x170 [10130.391068][ T253] __sys_sendmsg+0xcd/0x170 [10130.391068][ T253] do_syscall_64+0xc6/0x1e0 [10130.391068][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10130.391068][ T253] [10130.393333][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10130.393333][ T253] netdev_get_by_index+0x5e/0x80 [10130.393333][ T253] fib6_nh_init+0x3d8/0x1580 [10130.393333][ T253] ip6_route_info_create+0xf18/0x17d0 [10130.393333][ T253] addrconf_f6i_alloc+0x315/0x560 [10130.393333][ T253] ipv6_add_addr+0x411/0x2000 [10130.393333][ T253] inet6_addr_add+0x30e/0xa40 [10130.393333][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10130.393333][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10130.393333][ T253] netlink_rcv_skb+0x130/0x360 [10130.393333][ T253] netlink_unicast+0x449/0x710 [10130.393333][ T253] netlink_sendmsg+0x723/0xbe0 [10130.393333][ T253] ____sys_sendmsg+0x7b2/0xa10 [10130.393333][ T253] ___sys_sendmsg+0xee/0x170 [10130.393333][ T253] __sys_sendmsg+0xcd/0x170 [10130.393333][ T253] do_syscall_64+0xc6/0x1e0 [10130.393333][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10130.393333][ T253] [10130.395579][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10130.395579][ T253] netdev_get_by_index+0x5e/0x80 [10130.395579][ T253] fib6_nh_init+0x3d8/0x1580 [10130.395579][ T253] ip6_route_info_create+0xf18/0x17d0 [10130.395579][ T253] ip6_route_add+0x1c/0x140 [10130.395579][ T253] addrconf_add_mroute+0x1ac/0x2c0 [10130.395579][ T253] addrconf_add_dev+0xe2/0x170 [10130.395579][ T253] inet6_addr_add+0x12f/0xa40 [10130.395579][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10130.395579][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10130.395579][ T253] netlink_rcv_skb+0x130/0x360 [10130.395579][ T253] netlink_unicast+0x449/0x710 [10130.395579][ T253] netlink_sendmsg+0x723/0xbe0 [10130.395579][ T253] ____sys_sendmsg+0x7b2/0xa10 [10130.395579][ T253] ___sys_sendmsg+0xee/0x170 [10130.395579][ T253] __sys_sendmsg+0xcd/0x170 [10130.395579][ T253] do_syscall_64+0xc6/0x1e0 [10130.395579][ T253] [10130.397790][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10130.397790][ T253] ipv6_add_dev+0x3ba/0x11c0 [10130.397790][ T253] ipv6_find_idev+0x102/0x170 [10130.397790][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10130.397790][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10130.397790][ T253] netlink_rcv_skb+0x130/0x360 [10130.397790][ T253] netlink_unicast+0x449/0x710 [10130.397790][ T253] netlink_sendmsg+0x723/0xbe0 [10130.397790][ T253] ____sys_sendmsg+0x7b2/0xa10 [10130.397790][ T253] ___sys_sendmsg+0xee/0x170 [10130.397790][ T253] __sys_sendmsg+0xcd/0x170 [10130.397790][ T253] do_syscall_64+0xc6/0x1e0 [10130.397790][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10130.397790][ T253] [10130.399517][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10130.399517][ T253] neigh_parms_alloc+0x1e5/0x510 [10130.399517][ T253] ipv6_add_dev+0x2fe/0x11c0 [10130.399517][ T253] ipv6_find_idev+0x102/0x170 [10130.399517][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10130.399517][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10130.399517][ T253] netlink_rcv_skb+0x130/0x360 [10130.399517][ T253] netlink_unicast+0x449/0x710 [10130.399517][ T253] netlink_sendmsg+0x723/0xbe0 [10130.399517][ T253] ____sys_sendmsg+0x7b2/0xa10 [10130.399517][ T253] ___sys_sendmsg+0xee/0x170 [10130.399517][ T253] __sys_sendmsg+0xcd/0x170 [10130.399517][ T253] do_syscall_64+0xc6/0x1e0 [10130.399517][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10130.399517][ T253] [10140.642302][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10140.642783][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10140.642783][ T253] dst_init+0x84/0x4a0 [10140.642783][ T253] dst_alloc+0x97/0x150 [10140.642783][ T253] ip6_dst_alloc+0x23/0x90 [10140.642783][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [10140.642783][ T253] ip6_pol_route+0x56f/0x840 [10140.642783][ T253] fib6_rule_lookup+0x334/0x630 [10140.642783][ T253] ip6_route_output_flags+0x259/0x480 [10140.642783][ T253] inet6_rtm_getroute+0x980/0xf70 [10140.642783][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [10140.642783][ T253] netlink_rcv_skb+0x130/0x360 [10140.642783][ T253] netlink_unicast+0x449/0x710 [10140.642783][ T253] netlink_sendmsg+0x723/0xbe0 [10140.642783][ T253] ____sys_sendmsg+0x7b2/0xa10 [10140.642783][ T253] ___sys_sendmsg+0xee/0x170 [10140.642783][ T253] __sys_sendmsg+0xcd/0x170 [10140.642783][ T253] do_syscall_64+0xc6/0x1e0 [10140.642783][ T253] [10140.645005][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10140.645005][ T253] netdev_get_by_index+0x5e/0x80 [10140.645005][ T253] fib6_nh_init+0x3d8/0x1580 [10140.645005][ T253] ip6_route_info_create+0xf18/0x17d0 [10140.645005][ T253] addrconf_f6i_alloc+0x265/0x560 [10140.645005][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [10140.645005][ T253] addrconf_join_anycast+0x1c0/0x220 [10140.645005][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [10140.645005][ T253] addrconf_dad_completed+0x12b/0xe20 [10140.645005][ T253] addrconf_dad_begin+0x310/0x670 [10140.645005][ T253] addrconf_dad_work+0x10b/0xab0 [10140.645005][ T253] process_one_work+0x84d/0x18a0 [10140.645005][ T253] worker_thread+0x587/0xd30 [10140.645005][ T253] kthread+0x28a/0x350 [10140.645005][ T253] ret_from_fork+0x31/0x70 [10140.645005][ T253] ret_from_fork_asm+0x1a/0x30 [10140.645005][ T253] [10140.647172][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10140.647172][ T253] netdev_get_by_index+0x5e/0x80 [10140.647172][ T253] fib6_nh_init+0x3d8/0x1580 [10140.647172][ T253] ip6_route_info_create+0xf18/0x17d0 [10140.647172][ T253] ip6_route_add+0x1c/0x140 [10140.647172][ T253] addrconf_prefix_route+0x2a6/0x430 [10140.647172][ T253] inet6_addr_add+0x4f8/0xa40 [10140.647172][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10140.647172][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10140.647172][ T253] netlink_rcv_skb+0x130/0x360 [10140.647172][ T253] netlink_unicast+0x449/0x710 [10140.647172][ T253] netlink_sendmsg+0x723/0xbe0 [10140.647172][ T253] ____sys_sendmsg+0x7b2/0xa10 [10140.647172][ T253] ___sys_sendmsg+0xee/0x170 [10140.647172][ T253] __sys_sendmsg+0xcd/0x170 [10140.647172][ T253] do_syscall_64+0xc6/0x1e0 [10140.647172][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10140.647172][ T253] [10140.649431][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10140.649431][ T253] netdev_get_by_index+0x5e/0x80 [10140.649431][ T253] fib6_nh_init+0x3d8/0x1580 [10140.649431][ T253] ip6_route_info_create+0xf18/0x17d0 [10140.649431][ T253] addrconf_f6i_alloc+0x315/0x560 [10140.649431][ T253] ipv6_add_addr+0x411/0x2000 [10140.649431][ T253] inet6_addr_add+0x30e/0xa40 [10140.649431][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10140.649431][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10140.649431][ T253] netlink_rcv_skb+0x130/0x360 [10140.649431][ T253] netlink_unicast+0x449/0x710 [10140.649431][ T253] netlink_sendmsg+0x723/0xbe0 [10140.649431][ T253] ____sys_sendmsg+0x7b2/0xa10 [10140.649431][ T253] ___sys_sendmsg+0xee/0x170 [10140.649431][ T253] __sys_sendmsg+0xcd/0x170 [10140.649431][ T253] do_syscall_64+0xc6/0x1e0 [10140.649431][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10140.649431][ T253] [10140.651707][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10140.651707][ T253] netdev_get_by_index+0x5e/0x80 [10140.651707][ T253] fib6_nh_init+0x3d8/0x1580 [10140.651707][ T253] ip6_route_info_create+0xf18/0x17d0 [10140.651707][ T253] ip6_route_add+0x1c/0x140 [10140.651707][ T253] addrconf_add_mroute+0x1ac/0x2c0 [10140.651707][ T253] addrconf_add_dev+0xe2/0x170 [10140.651707][ T253] inet6_addr_add+0x12f/0xa40 [10140.651707][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10140.651707][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10140.651707][ T253] netlink_rcv_skb+0x130/0x360 [10140.651707][ T253] netlink_unicast+0x449/0x710 [10140.651707][ T253] netlink_sendmsg+0x723/0xbe0 [10140.651707][ T253] ____sys_sendmsg+0x7b2/0xa10 [10140.651707][ T253] ___sys_sendmsg+0xee/0x170 [10140.651707][ T253] __sys_sendmsg+0xcd/0x170 [10140.651707][ T253] do_syscall_64+0xc6/0x1e0 [10140.651707][ T253] [10140.653933][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10140.653933][ T253] ipv6_add_dev+0x3ba/0x11c0 [10140.653933][ T253] ipv6_find_idev+0x102/0x170 [10140.653933][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10140.653933][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10140.653933][ T253] netlink_rcv_skb+0x130/0x360 [10140.653933][ T253] netlink_unicast+0x449/0x710 [10140.653933][ T253] netlink_sendmsg+0x723/0xbe0 [10140.653933][ T253] ____sys_sendmsg+0x7b2/0xa10 [10140.653933][ T253] ___sys_sendmsg+0xee/0x170 [10140.653933][ T253] __sys_sendmsg+0xcd/0x170 [10140.653933][ T253] do_syscall_64+0xc6/0x1e0 [10140.653933][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10140.653933][ T253] [10140.655669][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10140.655669][ T253] neigh_parms_alloc+0x1e5/0x510 [10140.655669][ T253] ipv6_add_dev+0x2fe/0x11c0 [10140.655669][ T253] ipv6_find_idev+0x102/0x170 [10140.655669][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10140.655669][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10140.655669][ T253] netlink_rcv_skb+0x130/0x360 [10140.655669][ T253] netlink_unicast+0x449/0x710 [10140.655669][ T253] netlink_sendmsg+0x723/0xbe0 [10140.655669][ T253] ____sys_sendmsg+0x7b2/0xa10 [10140.655669][ T253] ___sys_sendmsg+0xee/0x170 [10140.655669][ T253] __sys_sendmsg+0xcd/0x170 [10140.655669][ T253] do_syscall_64+0xc6/0x1e0 [10140.655669][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10140.655669][ T253] [10150.898321][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10150.898827][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10150.898827][ T253] dst_init+0x84/0x4a0 [10150.898827][ T253] dst_alloc+0x97/0x150 [10150.898827][ T253] ip6_dst_alloc+0x23/0x90 [10150.898827][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [10150.898827][ T253] ip6_pol_route+0x56f/0x840 [10150.898827][ T253] fib6_rule_lookup+0x334/0x630 [10150.898827][ T253] ip6_route_output_flags+0x259/0x480 [10150.898827][ T253] inet6_rtm_getroute+0x980/0xf70 [10150.898827][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [10150.898827][ T253] netlink_rcv_skb+0x130/0x360 [10150.898827][ T253] netlink_unicast+0x449/0x710 [10150.898827][ T253] netlink_sendmsg+0x723/0xbe0 [10150.898827][ T253] ____sys_sendmsg+0x7b2/0xa10 [10150.898827][ T253] ___sys_sendmsg+0xee/0x170 [10150.898827][ T253] __sys_sendmsg+0xcd/0x170 [10150.898827][ T253] do_syscall_64+0xc6/0x1e0 [10150.898827][ T253] [10150.901052][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10150.901052][ T253] netdev_get_by_index+0x5e/0x80 [10150.901052][ T253] fib6_nh_init+0x3d8/0x1580 [10150.901052][ T253] ip6_route_info_create+0xf18/0x17d0 [10150.901052][ T253] addrconf_f6i_alloc+0x265/0x560 [10150.901052][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [10150.901052][ T253] addrconf_join_anycast+0x1c0/0x220 [10150.901052][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [10150.901052][ T253] addrconf_dad_completed+0x12b/0xe20 [10150.901052][ T253] addrconf_dad_begin+0x310/0x670 [10150.901052][ T253] addrconf_dad_work+0x10b/0xab0 [10150.901052][ T253] process_one_work+0x84d/0x18a0 [10150.901052][ T253] worker_thread+0x587/0xd30 [10150.901052][ T253] kthread+0x28a/0x350 [10150.901052][ T253] ret_from_fork+0x31/0x70 [10150.901052][ T253] ret_from_fork_asm+0x1a/0x30 [10150.901052][ T253] [10150.903223][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10150.903223][ T253] netdev_get_by_index+0x5e/0x80 [10150.903223][ T253] fib6_nh_init+0x3d8/0x1580 [10150.903223][ T253] ip6_route_info_create+0xf18/0x17d0 [10150.903223][ T253] ip6_route_add+0x1c/0x140 [10150.903223][ T253] addrconf_prefix_route+0x2a6/0x430 [10150.903223][ T253] inet6_addr_add+0x4f8/0xa40 [10150.903223][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10150.903223][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10150.903223][ T253] netlink_rcv_skb+0x130/0x360 [10150.903223][ T253] netlink_unicast+0x449/0x710 [10150.903223][ T253] netlink_sendmsg+0x723/0xbe0 [10150.903223][ T253] ____sys_sendmsg+0x7b2/0xa10 [10150.903223][ T253] ___sys_sendmsg+0xee/0x170 [10150.903223][ T253] __sys_sendmsg+0xcd/0x170 [10150.903223][ T253] do_syscall_64+0xc6/0x1e0 [10150.903223][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10150.903223][ T253] [10150.905483][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10150.905483][ T253] netdev_get_by_index+0x5e/0x80 [10150.905483][ T253] fib6_nh_init+0x3d8/0x1580 [10150.905483][ T253] ip6_route_info_create+0xf18/0x17d0 [10150.905483][ T253] addrconf_f6i_alloc+0x315/0x560 [10150.905483][ T253] ipv6_add_addr+0x411/0x2000 [10150.905483][ T253] inet6_addr_add+0x30e/0xa40 [10150.905483][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10150.905483][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10150.905483][ T253] netlink_rcv_skb+0x130/0x360 [10150.905483][ T253] netlink_unicast+0x449/0x710 [10150.905483][ T253] netlink_sendmsg+0x723/0xbe0 [10150.905483][ T253] ____sys_sendmsg+0x7b2/0xa10 [10150.905483][ T253] ___sys_sendmsg+0xee/0x170 [10150.905483][ T253] __sys_sendmsg+0xcd/0x170 [10150.905483][ T253] do_syscall_64+0xc6/0x1e0 [10150.905483][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10150.905483][ T253] [10150.907762][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10150.907762][ T253] netdev_get_by_index+0x5e/0x80 [10150.907762][ T253] fib6_nh_init+0x3d8/0x1580 [10150.907762][ T253] ip6_route_info_create+0xf18/0x17d0 [10150.907762][ T253] ip6_route_add+0x1c/0x140 [10150.907762][ T253] addrconf_add_mroute+0x1ac/0x2c0 [10150.907762][ T253] addrconf_add_dev+0xe2/0x170 [10150.907762][ T253] inet6_addr_add+0x12f/0xa40 [10150.907762][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10150.907762][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10150.907762][ T253] netlink_rcv_skb+0x130/0x360 [10150.907762][ T253] netlink_unicast+0x449/0x710 [10150.907762][ T253] netlink_sendmsg+0x723/0xbe0 [10150.907762][ T253] ____sys_sendmsg+0x7b2/0xa10 [10150.907762][ T253] ___sys_sendmsg+0xee/0x170 [10150.907762][ T253] __sys_sendmsg+0xcd/0x170 [10150.907762][ T253] do_syscall_64+0xc6/0x1e0 [10150.907762][ T253] [10150.909981][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10150.909981][ T253] ipv6_add_dev+0x3ba/0x11c0 [10150.909981][ T253] ipv6_find_idev+0x102/0x170 [10150.909981][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10150.909981][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10150.909981][ T253] netlink_rcv_skb+0x130/0x360 [10150.909981][ T253] netlink_unicast+0x449/0x710 [10150.909981][ T253] netlink_sendmsg+0x723/0xbe0 [10150.909981][ T253] ____sys_sendmsg+0x7b2/0xa10 [10150.909981][ T253] ___sys_sendmsg+0xee/0x170 [10150.909981][ T253] __sys_sendmsg+0xcd/0x170 [10150.909981][ T253] do_syscall_64+0xc6/0x1e0 [10150.909981][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10150.909981][ T253] [10150.912247][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10150.912247][ T253] neigh_parms_alloc+0x1e5/0x510 [10150.912247][ T253] ipv6_add_dev+0x2fe/0x11c0 [10150.912247][ T253] ipv6_find_idev+0x102/0x170 [10150.912247][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10150.912247][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10150.912247][ T253] netlink_rcv_skb+0x130/0x360 [10150.912247][ T253] netlink_unicast+0x449/0x710 [10150.912247][ T253] netlink_sendmsg+0x723/0xbe0 [10150.912247][ T253] ____sys_sendmsg+0x7b2/0xa10 [10150.912247][ T253] ___sys_sendmsg+0xee/0x170 [10150.912247][ T253] __sys_sendmsg+0xcd/0x170 [10150.912247][ T253] do_syscall_64+0xc6/0x1e0 [10150.912247][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10150.912247][ T253] [10161.154316][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10161.154808][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10161.154808][ T253] dst_init+0x84/0x4a0 [10161.154808][ T253] dst_alloc+0x97/0x150 [10161.154808][ T253] ip6_dst_alloc+0x23/0x90 [10161.154808][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [10161.154808][ T253] ip6_pol_route+0x56f/0x840 [10161.154808][ T253] fib6_rule_lookup+0x334/0x630 [10161.154808][ T253] ip6_route_output_flags+0x259/0x480 [10161.154808][ T253] inet6_rtm_getroute+0x980/0xf70 [10161.154808][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [10161.154808][ T253] netlink_rcv_skb+0x130/0x360 [10161.154808][ T253] netlink_unicast+0x449/0x710 [10161.154808][ T253] netlink_sendmsg+0x723/0xbe0 [10161.154808][ T253] ____sys_sendmsg+0x7b2/0xa10 [10161.154808][ T253] ___sys_sendmsg+0xee/0x170 [10161.154808][ T253] __sys_sendmsg+0xcd/0x170 [10161.154808][ T253] do_syscall_64+0xc6/0x1e0 [10161.154808][ T253] [10161.157021][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10161.157021][ T253] netdev_get_by_index+0x5e/0x80 [10161.157021][ T253] fib6_nh_init+0x3d8/0x1580 [10161.157021][ T253] ip6_route_info_create+0xf18/0x17d0 [10161.157021][ T253] addrconf_f6i_alloc+0x265/0x560 [10161.157021][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [10161.157021][ T253] addrconf_join_anycast+0x1c0/0x220 [10161.157021][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [10161.157021][ T253] addrconf_dad_completed+0x12b/0xe20 [10161.157021][ T253] addrconf_dad_begin+0x310/0x670 [10161.157021][ T253] addrconf_dad_work+0x10b/0xab0 [10161.157021][ T253] process_one_work+0x84d/0x18a0 [10161.157021][ T253] worker_thread+0x587/0xd30 [10161.157021][ T253] kthread+0x28a/0x350 [10161.157021][ T253] ret_from_fork+0x31/0x70 [10161.157021][ T253] ret_from_fork_asm+0x1a/0x30 [10161.157021][ T253] [10161.159208][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10161.159208][ T253] netdev_get_by_index+0x5e/0x80 [10161.159208][ T253] fib6_nh_init+0x3d8/0x1580 [10161.159208][ T253] ip6_route_info_create+0xf18/0x17d0 [10161.159208][ T253] ip6_route_add+0x1c/0x140 [10161.159208][ T253] addrconf_prefix_route+0x2a6/0x430 [10161.159208][ T253] inet6_addr_add+0x4f8/0xa40 [10161.159208][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10161.159208][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10161.159208][ T253] netlink_rcv_skb+0x130/0x360 [10161.159208][ T253] netlink_unicast+0x449/0x710 [10161.159208][ T253] netlink_sendmsg+0x723/0xbe0 [10161.159208][ T253] ____sys_sendmsg+0x7b2/0xa10 [10161.159208][ T253] ___sys_sendmsg+0xee/0x170 [10161.159208][ T253] __sys_sendmsg+0xcd/0x170 [10161.159208][ T253] do_syscall_64+0xc6/0x1e0 [10161.159208][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10161.159208][ T253] [10161.161474][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10161.161474][ T253] netdev_get_by_index+0x5e/0x80 [10161.161474][ T253] fib6_nh_init+0x3d8/0x1580 [10161.161474][ T253] ip6_route_info_create+0xf18/0x17d0 [10161.161474][ T253] addrconf_f6i_alloc+0x315/0x560 [10161.161474][ T253] ipv6_add_addr+0x411/0x2000 [10161.161474][ T253] inet6_addr_add+0x30e/0xa40 [10161.161474][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10161.161474][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10161.161474][ T253] netlink_rcv_skb+0x130/0x360 [10161.161474][ T253] netlink_unicast+0x449/0x710 [10161.161474][ T253] netlink_sendmsg+0x723/0xbe0 [10161.161474][ T253] ____sys_sendmsg+0x7b2/0xa10 [10161.161474][ T253] ___sys_sendmsg+0xee/0x170 [10161.161474][ T253] __sys_sendmsg+0xcd/0x170 [10161.161474][ T253] do_syscall_64+0xc6/0x1e0 [10161.161474][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10161.161474][ T253] [10161.163747][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10161.163747][ T253] netdev_get_by_index+0x5e/0x80 [10161.163747][ T253] fib6_nh_init+0x3d8/0x1580 [10161.163747][ T253] ip6_route_info_create+0xf18/0x17d0 [10161.163747][ T253] ip6_route_add+0x1c/0x140 [10161.163747][ T253] addrconf_add_mroute+0x1ac/0x2c0 [10161.163747][ T253] addrconf_add_dev+0xe2/0x170 [10161.163747][ T253] inet6_addr_add+0x12f/0xa40 [10161.163747][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10161.163747][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10161.163747][ T253] netlink_rcv_skb+0x130/0x360 [10161.163747][ T253] netlink_unicast+0x449/0x710 [10161.163747][ T253] netlink_sendmsg+0x723/0xbe0 [10161.163747][ T253] ____sys_sendmsg+0x7b2/0xa10 [10161.163747][ T253] ___sys_sendmsg+0xee/0x170 [10161.163747][ T253] __sys_sendmsg+0xcd/0x170 [10161.163747][ T253] do_syscall_64+0xc6/0x1e0 [10161.163747][ T253] [10161.165966][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10161.165966][ T253] ipv6_add_dev+0x3ba/0x11c0 [10161.165966][ T253] ipv6_find_idev+0x102/0x170 [10161.165966][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10161.165966][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10161.165966][ T253] netlink_rcv_skb+0x130/0x360 [10161.165966][ T253] netlink_unicast+0x449/0x710 [10161.165966][ T253] netlink_sendmsg+0x723/0xbe0 [10161.165966][ T253] ____sys_sendmsg+0x7b2/0xa10 [10161.165966][ T253] ___sys_sendmsg+0xee/0x170 [10161.165966][ T253] __sys_sendmsg+0xcd/0x170 [10161.165966][ T253] do_syscall_64+0xc6/0x1e0 [10161.165966][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10161.165966][ T253] [10161.167708][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10161.167708][ T253] neigh_parms_alloc+0x1e5/0x510 [10161.167708][ T253] ipv6_add_dev+0x2fe/0x11c0 [10161.167708][ T253] ipv6_find_idev+0x102/0x170 [10161.167708][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10161.167708][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10161.167708][ T253] netlink_rcv_skb+0x130/0x360 [10161.167708][ T253] netlink_unicast+0x449/0x710 [10161.167708][ T253] netlink_sendmsg+0x723/0xbe0 [10161.167708][ T253] ____sys_sendmsg+0x7b2/0xa10 [10161.167708][ T253] ___sys_sendmsg+0xee/0x170 [10161.167708][ T253] __sys_sendmsg+0xcd/0x170 [10161.167708][ T253] do_syscall_64+0xc6/0x1e0 [10161.167708][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10161.167708][ T253] [10171.410312][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10171.410782][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10171.410782][ T253] dst_init+0x84/0x4a0 [10171.410782][ T253] dst_alloc+0x97/0x150 [10171.410782][ T253] ip6_dst_alloc+0x23/0x90 [10171.410782][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [10171.410782][ T253] ip6_pol_route+0x56f/0x840 [10171.410782][ T253] fib6_rule_lookup+0x334/0x630 [10171.410782][ T253] ip6_route_output_flags+0x259/0x480 [10171.410782][ T253] inet6_rtm_getroute+0x980/0xf70 [10171.410782][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [10171.410782][ T253] netlink_rcv_skb+0x130/0x360 [10171.410782][ T253] netlink_unicast+0x449/0x710 [10171.410782][ T253] netlink_sendmsg+0x723/0xbe0 [10171.410782][ T253] ____sys_sendmsg+0x7b2/0xa10 [10171.410782][ T253] ___sys_sendmsg+0xee/0x170 [10171.410782][ T253] __sys_sendmsg+0xcd/0x170 [10171.410782][ T253] do_syscall_64+0xc6/0x1e0 [10171.410782][ T253] [10171.412993][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10171.412993][ T253] netdev_get_by_index+0x5e/0x80 [10171.412993][ T253] fib6_nh_init+0x3d8/0x1580 [10171.412993][ T253] ip6_route_info_create+0xf18/0x17d0 [10171.412993][ T253] addrconf_f6i_alloc+0x265/0x560 [10171.412993][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [10171.412993][ T253] addrconf_join_anycast+0x1c0/0x220 [10171.412993][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [10171.412993][ T253] addrconf_dad_completed+0x12b/0xe20 [10171.412993][ T253] addrconf_dad_begin+0x310/0x670 [10171.412993][ T253] addrconf_dad_work+0x10b/0xab0 [10171.412993][ T253] process_one_work+0x84d/0x18a0 [10171.412993][ T253] worker_thread+0x587/0xd30 [10171.412993][ T253] kthread+0x28a/0x350 [10171.412993][ T253] ret_from_fork+0x31/0x70 [10171.412993][ T253] ret_from_fork_asm+0x1a/0x30 [10171.412993][ T253] [10171.415130][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10171.415130][ T253] netdev_get_by_index+0x5e/0x80 [10171.415130][ T253] fib6_nh_init+0x3d8/0x1580 [10171.415130][ T253] ip6_route_info_create+0xf18/0x17d0 [10171.415130][ T253] ip6_route_add+0x1c/0x140 [10171.415130][ T253] addrconf_prefix_route+0x2a6/0x430 [10171.415130][ T253] inet6_addr_add+0x4f8/0xa40 [10171.415130][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10171.415130][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10171.415130][ T253] netlink_rcv_skb+0x130/0x360 [10171.415130][ T253] netlink_unicast+0x449/0x710 [10171.415130][ T253] netlink_sendmsg+0x723/0xbe0 [10171.415130][ T253] ____sys_sendmsg+0x7b2/0xa10 [10171.415130][ T253] ___sys_sendmsg+0xee/0x170 [10171.415130][ T253] __sys_sendmsg+0xcd/0x170 [10171.415130][ T253] do_syscall_64+0xc6/0x1e0 [10171.415130][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10171.415130][ T253] [10171.417364][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10171.417364][ T253] netdev_get_by_index+0x5e/0x80 [10171.417364][ T253] fib6_nh_init+0x3d8/0x1580 [10171.417364][ T253] ip6_route_info_create+0xf18/0x17d0 [10171.417364][ T253] addrconf_f6i_alloc+0x315/0x560 [10171.417364][ T253] ipv6_add_addr+0x411/0x2000 [10171.417364][ T253] inet6_addr_add+0x30e/0xa40 [10171.417364][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10171.417364][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10171.417364][ T253] netlink_rcv_skb+0x130/0x360 [10171.417364][ T253] netlink_unicast+0x449/0x710 [10171.417364][ T253] netlink_sendmsg+0x723/0xbe0 [10171.417364][ T253] ____sys_sendmsg+0x7b2/0xa10 [10171.417364][ T253] ___sys_sendmsg+0xee/0x170 [10171.417364][ T253] __sys_sendmsg+0xcd/0x170 [10171.417364][ T253] do_syscall_64+0xc6/0x1e0 [10171.417364][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10171.417364][ T253] [10171.419590][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10171.419590][ T253] netdev_get_by_index+0x5e/0x80 [10171.419590][ T253] fib6_nh_init+0x3d8/0x1580 [10171.419590][ T253] ip6_route_info_create+0xf18/0x17d0 [10171.419590][ T253] ip6_route_add+0x1c/0x140 [10171.419590][ T253] addrconf_add_mroute+0x1ac/0x2c0 [10171.419590][ T253] addrconf_add_dev+0xe2/0x170 [10171.419590][ T253] inet6_addr_add+0x12f/0xa40 [10171.419590][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10171.419590][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10171.419590][ T253] netlink_rcv_skb+0x130/0x360 [10171.419590][ T253] netlink_unicast+0x449/0x710 [10171.419590][ T253] netlink_sendmsg+0x723/0xbe0 [10171.419590][ T253] ____sys_sendmsg+0x7b2/0xa10 [10171.419590][ T253] ___sys_sendmsg+0xee/0x170 [10171.419590][ T253] __sys_sendmsg+0xcd/0x170 [10171.419590][ T253] do_syscall_64+0xc6/0x1e0 [10171.419590][ T253] [10171.421788][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10171.421788][ T253] ipv6_add_dev+0x3ba/0x11c0 [10171.421788][ T253] ipv6_find_idev+0x102/0x170 [10171.421788][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10171.421788][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10171.421788][ T253] netlink_rcv_skb+0x130/0x360 [10171.421788][ T253] netlink_unicast+0x449/0x710 [10171.421788][ T253] netlink_sendmsg+0x723/0xbe0 [10171.421788][ T253] ____sys_sendmsg+0x7b2/0xa10 [10171.421788][ T253] ___sys_sendmsg+0xee/0x170 [10171.421788][ T253] __sys_sendmsg+0xcd/0x170 [10171.421788][ T253] do_syscall_64+0xc6/0x1e0 [10171.421788][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10171.421788][ T253] [10171.423516][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10171.423516][ T253] neigh_parms_alloc+0x1e5/0x510 [10171.423516][ T253] ipv6_add_dev+0x2fe/0x11c0 [10171.423516][ T253] ipv6_find_idev+0x102/0x170 [10171.423516][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10171.423516][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10171.423516][ T253] netlink_rcv_skb+0x130/0x360 [10171.423516][ T253] netlink_unicast+0x449/0x710 [10171.423516][ T253] netlink_sendmsg+0x723/0xbe0 [10171.423516][ T253] ____sys_sendmsg+0x7b2/0xa10 [10171.423516][ T253] ___sys_sendmsg+0xee/0x170 [10171.423516][ T253] __sys_sendmsg+0xcd/0x170 [10171.423516][ T253] do_syscall_64+0xc6/0x1e0 [10171.423516][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10171.423516][ T253] [10181.506309][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10181.506775][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10181.506775][ T253] dst_init+0x84/0x4a0 [10181.506775][ T253] dst_alloc+0x97/0x150 [10181.506775][ T253] ip6_dst_alloc+0x23/0x90 [10181.506775][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [10181.506775][ T253] ip6_pol_route+0x56f/0x840 [10181.506775][ T253] fib6_rule_lookup+0x334/0x630 [10181.506775][ T253] ip6_route_output_flags+0x259/0x480 [10181.506775][ T253] inet6_rtm_getroute+0x980/0xf70 [10181.506775][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [10181.506775][ T253] netlink_rcv_skb+0x130/0x360 [10181.506775][ T253] netlink_unicast+0x449/0x710 [10181.506775][ T253] netlink_sendmsg+0x723/0xbe0 [10181.506775][ T253] ____sys_sendmsg+0x7b2/0xa10 [10181.506775][ T253] ___sys_sendmsg+0xee/0x170 [10181.506775][ T253] __sys_sendmsg+0xcd/0x170 [10181.506775][ T253] do_syscall_64+0xc6/0x1e0 [10181.506775][ T253] [10181.508971][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10181.508971][ T253] netdev_get_by_index+0x5e/0x80 [10181.508971][ T253] fib6_nh_init+0x3d8/0x1580 [10181.508971][ T253] ip6_route_info_create+0xf18/0x17d0 [10181.508971][ T253] addrconf_f6i_alloc+0x265/0x560 [10181.508971][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [10181.508971][ T253] addrconf_join_anycast+0x1c0/0x220 [10181.508971][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [10181.508971][ T253] addrconf_dad_completed+0x12b/0xe20 [10181.508971][ T253] addrconf_dad_begin+0x310/0x670 [10181.508971][ T253] addrconf_dad_work+0x10b/0xab0 [10181.508971][ T253] process_one_work+0x84d/0x18a0 [10181.508971][ T253] worker_thread+0x587/0xd30 [10181.508971][ T253] kthread+0x28a/0x350 [10181.508971][ T253] ret_from_fork+0x31/0x70 [10181.508971][ T253] ret_from_fork_asm+0x1a/0x30 [10181.508971][ T253] [10181.511113][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10181.511113][ T253] netdev_get_by_index+0x5e/0x80 [10181.511113][ T253] fib6_nh_init+0x3d8/0x1580 [10181.511113][ T253] ip6_route_info_create+0xf18/0x17d0 [10181.511113][ T253] ip6_route_add+0x1c/0x140 [10181.511113][ T253] addrconf_prefix_route+0x2a6/0x430 [10181.511113][ T253] inet6_addr_add+0x4f8/0xa40 [10181.511113][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10181.511113][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10181.511113][ T253] netlink_rcv_skb+0x130/0x360 [10181.511113][ T253] netlink_unicast+0x449/0x710 [10181.511113][ T253] netlink_sendmsg+0x723/0xbe0 [10181.511113][ T253] ____sys_sendmsg+0x7b2/0xa10 [10181.511113][ T253] ___sys_sendmsg+0xee/0x170 [10181.511113][ T253] __sys_sendmsg+0xcd/0x170 [10181.511113][ T253] do_syscall_64+0xc6/0x1e0 [10181.511113][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10181.511113][ T253] [10181.513367][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10181.513367][ T253] netdev_get_by_index+0x5e/0x80 [10181.513367][ T253] fib6_nh_init+0x3d8/0x1580 [10181.513367][ T253] ip6_route_info_create+0xf18/0x17d0 [10181.513367][ T253] addrconf_f6i_alloc+0x315/0x560 [10181.513367][ T253] ipv6_add_addr+0x411/0x2000 [10181.513367][ T253] inet6_addr_add+0x30e/0xa40 [10181.513367][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10181.513367][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10181.513367][ T253] netlink_rcv_skb+0x130/0x360 [10181.513367][ T253] netlink_unicast+0x449/0x710 [10181.513367][ T253] netlink_sendmsg+0x723/0xbe0 [10181.513367][ T253] ____sys_sendmsg+0x7b2/0xa10 [10181.513367][ T253] ___sys_sendmsg+0xee/0x170 [10181.513367][ T253] __sys_sendmsg+0xcd/0x170 [10181.513367][ T253] do_syscall_64+0xc6/0x1e0 [10181.513367][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10181.513367][ T253] [10181.515602][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10181.515602][ T253] netdev_get_by_index+0x5e/0x80 [10181.515602][ T253] fib6_nh_init+0x3d8/0x1580 [10181.515602][ T253] ip6_route_info_create+0xf18/0x17d0 [10181.515602][ T253] ip6_route_add+0x1c/0x140 [10181.515602][ T253] addrconf_add_mroute+0x1ac/0x2c0 [10181.515602][ T253] addrconf_add_dev+0xe2/0x170 [10181.515602][ T253] inet6_addr_add+0x12f/0xa40 [10181.515602][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10181.515602][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10181.515602][ T253] netlink_rcv_skb+0x130/0x360 [10181.515602][ T253] netlink_unicast+0x449/0x710 [10181.515602][ T253] netlink_sendmsg+0x723/0xbe0 [10181.515602][ T253] ____sys_sendmsg+0x7b2/0xa10 [10181.515602][ T253] ___sys_sendmsg+0xee/0x170 [10181.515602][ T253] __sys_sendmsg+0xcd/0x170 [10181.515602][ T253] do_syscall_64+0xc6/0x1e0 [10181.515602][ T253] [10181.517803][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10181.517803][ T253] ipv6_add_dev+0x3ba/0x11c0 [10181.517803][ T253] ipv6_find_idev+0x102/0x170 [10181.517803][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10181.517803][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10181.517803][ T253] netlink_rcv_skb+0x130/0x360 [10181.517803][ T253] netlink_unicast+0x449/0x710 [10181.517803][ T253] netlink_sendmsg+0x723/0xbe0 [10181.517803][ T253] ____sys_sendmsg+0x7b2/0xa10 [10181.517803][ T253] ___sys_sendmsg+0xee/0x170 [10181.517803][ T253] __sys_sendmsg+0xcd/0x170 [10181.517803][ T253] do_syscall_64+0xc6/0x1e0 [10181.517803][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10181.517803][ T253] [10181.519524][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10181.519524][ T253] neigh_parms_alloc+0x1e5/0x510 [10181.519524][ T253] ipv6_add_dev+0x2fe/0x11c0 [10181.519524][ T253] ipv6_find_idev+0x102/0x170 [10181.519524][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10181.519524][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10181.519524][ T253] netlink_rcv_skb+0x130/0x360 [10181.519524][ T253] netlink_unicast+0x449/0x710 [10181.519524][ T253] netlink_sendmsg+0x723/0xbe0 [10181.519524][ T253] ____sys_sendmsg+0x7b2/0xa10 [10181.519524][ T253] ___sys_sendmsg+0xee/0x170 [10181.519524][ T253] __sys_sendmsg+0xcd/0x170 [10181.519524][ T253] do_syscall_64+0xc6/0x1e0 [10181.519524][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10181.519524][ T253] [10191.666328][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10191.666989][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10191.666989][ T253] dst_init+0x84/0x4a0 [10191.666989][ T253] dst_alloc+0x97/0x150 [10191.666989][ T253] ip6_dst_alloc+0x23/0x90 [10191.666989][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [10191.666989][ T253] ip6_pol_route+0x56f/0x840 [10191.666989][ T253] fib6_rule_lookup+0x334/0x630 [10191.666989][ T253] ip6_route_output_flags+0x259/0x480 [10191.666989][ T253] inet6_rtm_getroute+0x980/0xf70 [10191.666989][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [10191.666989][ T253] netlink_rcv_skb+0x130/0x360 [10191.666989][ T253] netlink_unicast+0x449/0x710 [10191.666989][ T253] netlink_sendmsg+0x723/0xbe0 [10191.666989][ T253] ____sys_sendmsg+0x7b2/0xa10 [10191.666989][ T253] ___sys_sendmsg+0xee/0x170 [10191.666989][ T253] __sys_sendmsg+0xcd/0x170 [10191.666989][ T253] do_syscall_64+0xc6/0x1e0 [10191.666989][ T253] [10191.670254][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10191.670254][ T253] netdev_get_by_index+0x5e/0x80 [10191.670254][ T253] fib6_nh_init+0x3d8/0x1580 [10191.670254][ T253] ip6_route_info_create+0xf18/0x17d0 [10191.670254][ T253] addrconf_f6i_alloc+0x265/0x560 [10191.670254][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [10191.670254][ T253] addrconf_join_anycast+0x1c0/0x220 [10191.670254][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [10191.670254][ T253] addrconf_dad_completed+0x12b/0xe20 [10191.670254][ T253] addrconf_dad_begin+0x310/0x670 [10191.670254][ T253] addrconf_dad_work+0x10b/0xab0 [10191.670254][ T253] process_one_work+0x84d/0x18a0 [10191.670254][ T253] worker_thread+0x587/0xd30 [10191.670254][ T253] kthread+0x28a/0x350 [10191.670254][ T253] ret_from_fork+0x31/0x70 [10191.670254][ T253] ret_from_fork_asm+0x1a/0x30 [10191.670254][ T253] [10191.673492][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10191.673492][ T253] netdev_get_by_index+0x5e/0x80 [10191.673492][ T253] fib6_nh_init+0x3d8/0x1580 [10191.673492][ T253] ip6_route_info_create+0xf18/0x17d0 [10191.673492][ T253] ip6_route_add+0x1c/0x140 [10191.673492][ T253] addrconf_prefix_route+0x2a6/0x430 [10191.673492][ T253] inet6_addr_add+0x4f8/0xa40 [10191.673492][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10191.673492][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10191.673492][ T253] netlink_rcv_skb+0x130/0x360 [10191.673492][ T253] netlink_unicast+0x449/0x710 [10191.673492][ T253] netlink_sendmsg+0x723/0xbe0 [10191.673492][ T253] ____sys_sendmsg+0x7b2/0xa10 [10191.673492][ T253] ___sys_sendmsg+0xee/0x170 [10191.673492][ T253] __sys_sendmsg+0xcd/0x170 [10191.673492][ T253] do_syscall_64+0xc6/0x1e0 [10191.673492][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10191.673492][ T253] [10191.676905][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10191.676905][ T253] netdev_get_by_index+0x5e/0x80 [10191.676905][ T253] fib6_nh_init+0x3d8/0x1580 [10191.676905][ T253] ip6_route_info_create+0xf18/0x17d0 [10191.676905][ T253] addrconf_f6i_alloc+0x315/0x560 [10191.676905][ T253] ipv6_add_addr+0x411/0x2000 [10191.676905][ T253] inet6_addr_add+0x30e/0xa40 [10191.676905][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10191.676905][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10191.676905][ T253] netlink_rcv_skb+0x130/0x360 [10191.676905][ T253] netlink_unicast+0x449/0x710 [10191.676905][ T253] netlink_sendmsg+0x723/0xbe0 [10191.676905][ T253] ____sys_sendmsg+0x7b2/0xa10 [10191.676905][ T253] ___sys_sendmsg+0xee/0x170 [10191.676905][ T253] __sys_sendmsg+0xcd/0x170 [10191.676905][ T253] do_syscall_64+0xc6/0x1e0 [10191.676905][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10191.676905][ T253] [10191.680267][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10191.680267][ T253] netdev_get_by_index+0x5e/0x80 [10191.680267][ T253] fib6_nh_init+0x3d8/0x1580 [10191.680267][ T253] ip6_route_info_create+0xf18/0x17d0 [10191.680267][ T253] ip6_route_add+0x1c/0x140 [10191.680267][ T253] addrconf_add_mroute+0x1ac/0x2c0 [10191.680267][ T253] addrconf_add_dev+0xe2/0x170 [10191.680267][ T253] inet6_addr_add+0x12f/0xa40 [10191.680267][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10191.680267][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10191.680267][ T253] netlink_rcv_skb+0x130/0x360 [10191.680267][ T253] netlink_unicast+0x449/0x710 [10191.680267][ T253] netlink_sendmsg+0x723/0xbe0 [10191.680267][ T253] ____sys_sendmsg+0x7b2/0xa10 [10191.680267][ T253] ___sys_sendmsg+0xee/0x170 [10191.680267][ T253] __sys_sendmsg+0xcd/0x170 [10191.680267][ T253] do_syscall_64+0xc6/0x1e0 [10191.680267][ T253] [10191.683574][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10191.683574][ T253] ipv6_add_dev+0x3ba/0x11c0 [10191.683574][ T253] ipv6_find_idev+0x102/0x170 [10191.683574][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10191.683574][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10191.683574][ T253] netlink_rcv_skb+0x130/0x360 [10191.683574][ T253] netlink_unicast+0x449/0x710 [10191.683574][ T253] netlink_sendmsg+0x723/0xbe0 [10191.683574][ T253] ____sys_sendmsg+0x7b2/0xa10 [10191.683574][ T253] ___sys_sendmsg+0xee/0x170 [10191.683574][ T253] __sys_sendmsg+0xcd/0x170 [10191.683574][ T253] do_syscall_64+0xc6/0x1e0 [10191.683574][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10191.683574][ T253] [10191.686128][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10191.686128][ T253] neigh_parms_alloc+0x1e5/0x510 [10191.686128][ T253] ipv6_add_dev+0x2fe/0x11c0 [10191.686128][ T253] ipv6_find_idev+0x102/0x170 [10191.686128][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10191.686128][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10191.686128][ T253] netlink_rcv_skb+0x130/0x360 [10191.686128][ T253] netlink_unicast+0x449/0x710 [10191.686128][ T253] netlink_sendmsg+0x723/0xbe0 [10191.686128][ T253] ____sys_sendmsg+0x7b2/0xa10 [10191.686128][ T253] ___sys_sendmsg+0xee/0x170 [10191.686128][ T253] __sys_sendmsg+0xcd/0x170 [10191.686128][ T253] do_syscall_64+0xc6/0x1e0 [10191.686128][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10191.686128][ T253] [10201.874349][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10201.874850][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10201.874850][ T253] dst_init+0x84/0x4a0 [10201.874850][ T253] dst_alloc+0x97/0x150 [10201.874850][ T253] ip6_dst_alloc+0x23/0x90 [10201.874850][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [10201.874850][ T253] ip6_pol_route+0x56f/0x840 [10201.874850][ T253] fib6_rule_lookup+0x334/0x630 [10201.874850][ T253] ip6_route_output_flags+0x259/0x480 [10201.874850][ T253] inet6_rtm_getroute+0x980/0xf70 [10201.874850][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [10201.874850][ T253] netlink_rcv_skb+0x130/0x360 [10201.874850][ T253] netlink_unicast+0x449/0x710 [10201.874850][ T253] netlink_sendmsg+0x723/0xbe0 [10201.874850][ T253] ____sys_sendmsg+0x7b2/0xa10 [10201.874850][ T253] ___sys_sendmsg+0xee/0x170 [10201.874850][ T253] __sys_sendmsg+0xcd/0x170 [10201.874850][ T253] do_syscall_64+0xc6/0x1e0 [10201.874850][ T253] [10201.877039][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10201.877039][ T253] netdev_get_by_index+0x5e/0x80 [10201.877039][ T253] fib6_nh_init+0x3d8/0x1580 [10201.877039][ T253] ip6_route_info_create+0xf18/0x17d0 [10201.877039][ T253] addrconf_f6i_alloc+0x265/0x560 [10201.877039][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [10201.877039][ T253] addrconf_join_anycast+0x1c0/0x220 [10201.877039][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [10201.877039][ T253] addrconf_dad_completed+0x12b/0xe20 [10201.877039][ T253] addrconf_dad_begin+0x310/0x670 [10201.877039][ T253] addrconf_dad_work+0x10b/0xab0 [10201.877039][ T253] process_one_work+0x84d/0x18a0 [10201.877039][ T253] worker_thread+0x587/0xd30 [10201.877039][ T253] kthread+0x28a/0x350 [10201.877039][ T253] ret_from_fork+0x31/0x70 [10201.877039][ T253] ret_from_fork_asm+0x1a/0x30 [10201.877039][ T253] [10201.879180][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10201.879180][ T253] netdev_get_by_index+0x5e/0x80 [10201.879180][ T253] fib6_nh_init+0x3d8/0x1580 [10201.879180][ T253] ip6_route_info_create+0xf18/0x17d0 [10201.879180][ T253] ip6_route_add+0x1c/0x140 [10201.879180][ T253] addrconf_prefix_route+0x2a6/0x430 [10201.879180][ T253] inet6_addr_add+0x4f8/0xa40 [10201.879180][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10201.879180][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10201.879180][ T253] netlink_rcv_skb+0x130/0x360 [10201.879180][ T253] netlink_unicast+0x449/0x710 [10201.879180][ T253] netlink_sendmsg+0x723/0xbe0 [10201.879180][ T253] ____sys_sendmsg+0x7b2/0xa10 [10201.879180][ T253] ___sys_sendmsg+0xee/0x170 [10201.879180][ T253] __sys_sendmsg+0xcd/0x170 [10201.879180][ T253] do_syscall_64+0xc6/0x1e0 [10201.879180][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10201.879180][ T253] [10201.881413][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10201.881413][ T253] netdev_get_by_index+0x5e/0x80 [10201.881413][ T253] fib6_nh_init+0x3d8/0x1580 [10201.881413][ T253] ip6_route_info_create+0xf18/0x17d0 [10201.881413][ T253] addrconf_f6i_alloc+0x315/0x560 [10201.881413][ T253] ipv6_add_addr+0x411/0x2000 [10201.881413][ T253] inet6_addr_add+0x30e/0xa40 [10201.881413][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10201.881413][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10201.881413][ T253] netlink_rcv_skb+0x130/0x360 [10201.881413][ T253] netlink_unicast+0x449/0x710 [10201.881413][ T253] netlink_sendmsg+0x723/0xbe0 [10201.881413][ T253] ____sys_sendmsg+0x7b2/0xa10 [10201.881413][ T253] ___sys_sendmsg+0xee/0x170 [10201.881413][ T253] __sys_sendmsg+0xcd/0x170 [10201.881413][ T253] do_syscall_64+0xc6/0x1e0 [10201.881413][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10201.881413][ T253] [10201.883660][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10201.883660][ T253] netdev_get_by_index+0x5e/0x80 [10201.883660][ T253] fib6_nh_init+0x3d8/0x1580 [10201.883660][ T253] ip6_route_info_create+0xf18/0x17d0 [10201.883660][ T253] ip6_route_add+0x1c/0x140 [10201.883660][ T253] addrconf_add_mroute+0x1ac/0x2c0 [10201.883660][ T253] addrconf_add_dev+0xe2/0x170 [10201.883660][ T253] inet6_addr_add+0x12f/0xa40 [10201.883660][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10201.883660][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10201.883660][ T253] netlink_rcv_skb+0x130/0x360 [10201.883660][ T253] netlink_unicast+0x449/0x710 [10201.883660][ T253] netlink_sendmsg+0x723/0xbe0 [10201.883660][ T253] ____sys_sendmsg+0x7b2/0xa10 [10201.883660][ T253] ___sys_sendmsg+0xee/0x170 [10201.883660][ T253] __sys_sendmsg+0xcd/0x170 [10201.883660][ T253] do_syscall_64+0xc6/0x1e0 [10201.883660][ T253] [10201.885853][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10201.885853][ T253] ipv6_add_dev+0x3ba/0x11c0 [10201.885853][ T253] ipv6_find_idev+0x102/0x170 [10201.885853][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10201.885853][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10201.885853][ T253] netlink_rcv_skb+0x130/0x360 [10201.885853][ T253] netlink_unicast+0x449/0x710 [10201.885853][ T253] netlink_sendmsg+0x723/0xbe0 [10201.885853][ T253] ____sys_sendmsg+0x7b2/0xa10 [10201.885853][ T253] ___sys_sendmsg+0xee/0x170 [10201.885853][ T253] __sys_sendmsg+0xcd/0x170 [10201.885853][ T253] do_syscall_64+0xc6/0x1e0 [10201.885853][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10201.885853][ T253] [10201.887581][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10201.887581][ T253] neigh_parms_alloc+0x1e5/0x510 [10201.887581][ T253] ipv6_add_dev+0x2fe/0x11c0 [10201.887581][ T253] ipv6_find_idev+0x102/0x170 [10201.887581][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10201.887581][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10201.887581][ T253] netlink_rcv_skb+0x130/0x360 [10201.887581][ T253] netlink_unicast+0x449/0x710 [10201.887581][ T253] netlink_sendmsg+0x723/0xbe0 [10201.887581][ T253] ____sys_sendmsg+0x7b2/0xa10 [10201.887581][ T253] ___sys_sendmsg+0xee/0x170 [10201.887581][ T253] __sys_sendmsg+0xcd/0x170 [10201.887581][ T253] do_syscall_64+0xc6/0x1e0 [10201.887581][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10201.887581][ T253] [10212.130341][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10212.130822][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10212.130822][ T253] dst_init+0x84/0x4a0 [10212.130822][ T253] dst_alloc+0x97/0x150 [10212.130822][ T253] ip6_dst_alloc+0x23/0x90 [10212.130822][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [10212.130822][ T253] ip6_pol_route+0x56f/0x840 [10212.130822][ T253] fib6_rule_lookup+0x334/0x630 [10212.130822][ T253] ip6_route_output_flags+0x259/0x480 [10212.130822][ T253] inet6_rtm_getroute+0x980/0xf70 [10212.130822][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [10212.130822][ T253] netlink_rcv_skb+0x130/0x360 [10212.130822][ T253] netlink_unicast+0x449/0x710 [10212.130822][ T253] netlink_sendmsg+0x723/0xbe0 [10212.130822][ T253] ____sys_sendmsg+0x7b2/0xa10 [10212.130822][ T253] ___sys_sendmsg+0xee/0x170 [10212.130822][ T253] __sys_sendmsg+0xcd/0x170 [10212.130822][ T253] do_syscall_64+0xc6/0x1e0 [10212.130822][ T253] [10212.133061][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10212.133061][ T253] netdev_get_by_index+0x5e/0x80 [10212.133061][ T253] fib6_nh_init+0x3d8/0x1580 [10212.133061][ T253] ip6_route_info_create+0xf18/0x17d0 [10212.133061][ T253] addrconf_f6i_alloc+0x265/0x560 [10212.133061][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [10212.133061][ T253] addrconf_join_anycast+0x1c0/0x220 [10212.133061][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [10212.133061][ T253] addrconf_dad_completed+0x12b/0xe20 [10212.133061][ T253] addrconf_dad_begin+0x310/0x670 [10212.133061][ T253] addrconf_dad_work+0x10b/0xab0 [10212.133061][ T253] process_one_work+0x84d/0x18a0 [10212.133061][ T253] worker_thread+0x587/0xd30 [10212.133061][ T253] kthread+0x28a/0x350 [10212.133061][ T253] ret_from_fork+0x31/0x70 [10212.133061][ T253] ret_from_fork_asm+0x1a/0x30 [10212.133061][ T253] [10212.135216][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10212.135216][ T253] netdev_get_by_index+0x5e/0x80 [10212.135216][ T253] fib6_nh_init+0x3d8/0x1580 [10212.135216][ T253] ip6_route_info_create+0xf18/0x17d0 [10212.135216][ T253] ip6_route_add+0x1c/0x140 [10212.135216][ T253] addrconf_prefix_route+0x2a6/0x430 [10212.135216][ T253] inet6_addr_add+0x4f8/0xa40 [10212.135216][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10212.135216][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10212.135216][ T253] netlink_rcv_skb+0x130/0x360 [10212.135216][ T253] netlink_unicast+0x449/0x710 [10212.135216][ T253] netlink_sendmsg+0x723/0xbe0 [10212.135216][ T253] ____sys_sendmsg+0x7b2/0xa10 [10212.135216][ T253] ___sys_sendmsg+0xee/0x170 [10212.135216][ T253] __sys_sendmsg+0xcd/0x170 [10212.135216][ T253] do_syscall_64+0xc6/0x1e0 [10212.135216][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10212.135216][ T253] [10212.137461][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10212.137461][ T253] netdev_get_by_index+0x5e/0x80 [10212.137461][ T253] fib6_nh_init+0x3d8/0x1580 [10212.137461][ T253] ip6_route_info_create+0xf18/0x17d0 [10212.137461][ T253] addrconf_f6i_alloc+0x315/0x560 [10212.137461][ T253] ipv6_add_addr+0x411/0x2000 [10212.137461][ T253] inet6_addr_add+0x30e/0xa40 [10212.137461][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10212.137461][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10212.137461][ T253] netlink_rcv_skb+0x130/0x360 [10212.137461][ T253] netlink_unicast+0x449/0x710 [10212.137461][ T253] netlink_sendmsg+0x723/0xbe0 [10212.137461][ T253] ____sys_sendmsg+0x7b2/0xa10 [10212.137461][ T253] ___sys_sendmsg+0xee/0x170 [10212.137461][ T253] __sys_sendmsg+0xcd/0x170 [10212.137461][ T253] do_syscall_64+0xc6/0x1e0 [10212.137461][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10212.137461][ T253] [10212.139699][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10212.139699][ T253] netdev_get_by_index+0x5e/0x80 [10212.139699][ T253] fib6_nh_init+0x3d8/0x1580 [10212.139699][ T253] ip6_route_info_create+0xf18/0x17d0 [10212.139699][ T253] ip6_route_add+0x1c/0x140 [10212.139699][ T253] addrconf_add_mroute+0x1ac/0x2c0 [10212.139699][ T253] addrconf_add_dev+0xe2/0x170 [10212.139699][ T253] inet6_addr_add+0x12f/0xa40 [10212.139699][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10212.139699][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10212.139699][ T253] netlink_rcv_skb+0x130/0x360 [10212.139699][ T253] netlink_unicast+0x449/0x710 [10212.139699][ T253] netlink_sendmsg+0x723/0xbe0 [10212.139699][ T253] ____sys_sendmsg+0x7b2/0xa10 [10212.139699][ T253] ___sys_sendmsg+0xee/0x170 [10212.139699][ T253] __sys_sendmsg+0xcd/0x170 [10212.139699][ T253] do_syscall_64+0xc6/0x1e0 [10212.139699][ T253] [10212.141904][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10212.141904][ T253] ipv6_add_dev+0x3ba/0x11c0 [10212.141904][ T253] ipv6_find_idev+0x102/0x170 [10212.141904][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10212.141904][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10212.141904][ T253] netlink_rcv_skb+0x130/0x360 [10212.141904][ T253] netlink_unicast+0x449/0x710 [10212.141904][ T253] netlink_sendmsg+0x723/0xbe0 [10212.141904][ T253] ____sys_sendmsg+0x7b2/0xa10 [10212.141904][ T253] ___sys_sendmsg+0xee/0x170 [10212.141904][ T253] __sys_sendmsg+0xcd/0x170 [10212.141904][ T253] do_syscall_64+0xc6/0x1e0 [10212.141904][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10212.141904][ T253] [10212.143640][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10212.143640][ T253] neigh_parms_alloc+0x1e5/0x510 [10212.143640][ T253] ipv6_add_dev+0x2fe/0x11c0 [10212.143640][ T253] ipv6_find_idev+0x102/0x170 [10212.143640][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10212.143640][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10212.143640][ T253] netlink_rcv_skb+0x130/0x360 [10212.143640][ T253] netlink_unicast+0x449/0x710 [10212.143640][ T253] netlink_sendmsg+0x723/0xbe0 [10212.143640][ T253] ____sys_sendmsg+0x7b2/0xa10 [10212.143640][ T253] ___sys_sendmsg+0xee/0x170 [10212.143640][ T253] __sys_sendmsg+0xcd/0x170 [10212.143640][ T253] do_syscall_64+0xc6/0x1e0 [10212.143640][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10212.143640][ T253] [10222.386279][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10222.386692][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10222.386692][ T253] dst_init+0x84/0x4a0 [10222.386692][ T253] dst_alloc+0x97/0x150 [10222.386692][ T253] ip6_dst_alloc+0x23/0x90 [10222.386692][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [10222.386692][ T253] ip6_pol_route+0x56f/0x840 [10222.386692][ T253] fib6_rule_lookup+0x334/0x630 [10222.386692][ T253] ip6_route_output_flags+0x259/0x480 [10222.386692][ T253] inet6_rtm_getroute+0x980/0xf70 [10222.386692][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [10222.386692][ T253] netlink_rcv_skb+0x130/0x360 [10222.386692][ T253] netlink_unicast+0x449/0x710 [10222.386692][ T253] netlink_sendmsg+0x723/0xbe0 [10222.386692][ T253] ____sys_sendmsg+0x7b2/0xa10 [10222.386692][ T253] ___sys_sendmsg+0xee/0x170 [10222.386692][ T253] __sys_sendmsg+0xcd/0x170 [10222.386692][ T253] do_syscall_64+0xc6/0x1e0 [10222.386692][ T253] [10222.389144][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10222.389144][ T253] netdev_get_by_index+0x5e/0x80 [10222.389144][ T253] fib6_nh_init+0x3d8/0x1580 [10222.389144][ T253] ip6_route_info_create+0xf18/0x17d0 [10222.389144][ T253] addrconf_f6i_alloc+0x265/0x560 [10222.389144][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [10222.389144][ T253] addrconf_join_anycast+0x1c0/0x220 [10222.389144][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [10222.389144][ T253] addrconf_dad_completed+0x12b/0xe20 [10222.389144][ T253] addrconf_dad_begin+0x310/0x670 [10222.389144][ T253] addrconf_dad_work+0x10b/0xab0 [10222.389144][ T253] process_one_work+0x84d/0x18a0 [10222.389144][ T253] worker_thread+0x587/0xd30 [10222.389144][ T253] kthread+0x28a/0x350 [10222.389144][ T253] ret_from_fork+0x31/0x70 [10222.389144][ T253] ret_from_fork_asm+0x1a/0x30 [10222.389144][ T253] [10222.391490][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10222.391490][ T253] netdev_get_by_index+0x5e/0x80 [10222.391490][ T253] fib6_nh_init+0x3d8/0x1580 [10222.391490][ T253] ip6_route_info_create+0xf18/0x17d0 [10222.391490][ T253] ip6_route_add+0x1c/0x140 [10222.391490][ T253] addrconf_prefix_route+0x2a6/0x430 [10222.391490][ T253] inet6_addr_add+0x4f8/0xa40 [10222.391490][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10222.391490][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10222.391490][ T253] netlink_rcv_skb+0x130/0x360 [10222.391490][ T253] netlink_unicast+0x449/0x710 [10222.391490][ T253] netlink_sendmsg+0x723/0xbe0 [10222.391490][ T253] ____sys_sendmsg+0x7b2/0xa10 [10222.391490][ T253] ___sys_sendmsg+0xee/0x170 [10222.391490][ T253] __sys_sendmsg+0xcd/0x170 [10222.391490][ T253] do_syscall_64+0xc6/0x1e0 [10222.391490][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10222.391490][ T253] [10222.394011][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10222.394011][ T253] netdev_get_by_index+0x5e/0x80 [10222.394011][ T253] fib6_nh_init+0x3d8/0x1580 [10222.394011][ T253] ip6_route_info_create+0xf18/0x17d0 [10222.394011][ T253] addrconf_f6i_alloc+0x315/0x560 [10222.394011][ T253] ipv6_add_addr+0x411/0x2000 [10222.394011][ T253] inet6_addr_add+0x30e/0xa40 [10222.394011][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10222.394011][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10222.394011][ T253] netlink_rcv_skb+0x130/0x360 [10222.394011][ T253] netlink_unicast+0x449/0x710 [10222.394011][ T253] netlink_sendmsg+0x723/0xbe0 [10222.394011][ T253] ____sys_sendmsg+0x7b2/0xa10 [10222.394011][ T253] ___sys_sendmsg+0xee/0x170 [10222.394011][ T253] __sys_sendmsg+0xcd/0x170 [10222.394011][ T253] do_syscall_64+0xc6/0x1e0 [10222.394011][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10222.394011][ T253] [10222.396463][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10222.396463][ T253] netdev_get_by_index+0x5e/0x80 [10222.396463][ T253] fib6_nh_init+0x3d8/0x1580 [10222.396463][ T253] ip6_route_info_create+0xf18/0x17d0 [10222.396463][ T253] ip6_route_add+0x1c/0x140 [10222.396463][ T253] addrconf_add_mroute+0x1ac/0x2c0 [10222.396463][ T253] addrconf_add_dev+0xe2/0x170 [10222.396463][ T253] inet6_addr_add+0x12f/0xa40 [10222.396463][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10222.396463][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10222.396463][ T253] netlink_rcv_skb+0x130/0x360 [10222.396463][ T253] netlink_unicast+0x449/0x710 [10222.396463][ T253] netlink_sendmsg+0x723/0xbe0 [10222.396463][ T253] ____sys_sendmsg+0x7b2/0xa10 [10222.396463][ T253] ___sys_sendmsg+0xee/0x170 [10222.396463][ T253] __sys_sendmsg+0xcd/0x170 [10222.396463][ T253] do_syscall_64+0xc6/0x1e0 [10222.396463][ T253] [10222.398817][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10222.398817][ T253] ipv6_add_dev+0x3ba/0x11c0 [10222.398817][ T253] ipv6_find_idev+0x102/0x170 [10222.398817][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10222.398817][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10222.398817][ T253] netlink_rcv_skb+0x130/0x360 [10222.398817][ T253] netlink_unicast+0x449/0x710 [10222.398817][ T253] netlink_sendmsg+0x723/0xbe0 [10222.398817][ T253] ____sys_sendmsg+0x7b2/0xa10 [10222.398817][ T253] ___sys_sendmsg+0xee/0x170 [10222.398817][ T253] __sys_sendmsg+0xcd/0x170 [10222.398817][ T253] do_syscall_64+0xc6/0x1e0 [10222.398817][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10222.398817][ T253] [10222.400768][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10222.400768][ T253] neigh_parms_alloc+0x1e5/0x510 [10222.400768][ T253] ipv6_add_dev+0x2fe/0x11c0 [10222.400768][ T253] ipv6_find_idev+0x102/0x170 [10222.400768][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10222.400768][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10222.400768][ T253] netlink_rcv_skb+0x130/0x360 [10222.400768][ T253] netlink_unicast+0x449/0x710 [10222.400768][ T253] netlink_sendmsg+0x723/0xbe0 [10222.400768][ T253] ____sys_sendmsg+0x7b2/0xa10 [10222.400768][ T253] ___sys_sendmsg+0xee/0x170 [10222.400768][ T253] __sys_sendmsg+0xcd/0x170 [10222.400768][ T253] do_syscall_64+0xc6/0x1e0 [10222.400768][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10222.400768][ T253] [10232.434310][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10232.434888][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10232.434888][ T253] dst_init+0x84/0x4a0 [10232.434888][ T253] dst_alloc+0x97/0x150 [10232.434888][ T253] ip6_dst_alloc+0x23/0x90 [10232.434888][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [10232.434888][ T253] ip6_pol_route+0x56f/0x840 [10232.434888][ T253] fib6_rule_lookup+0x334/0x630 [10232.434888][ T253] ip6_route_output_flags+0x259/0x480 [10232.434888][ T253] inet6_rtm_getroute+0x980/0xf70 [10232.434888][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [10232.434888][ T253] netlink_rcv_skb+0x130/0x360 [10232.434888][ T253] netlink_unicast+0x449/0x710 [10232.434888][ T253] netlink_sendmsg+0x723/0xbe0 [10232.434888][ T253] ____sys_sendmsg+0x7b2/0xa10 [10232.434888][ T253] ___sys_sendmsg+0xee/0x170 [10232.434888][ T253] __sys_sendmsg+0xcd/0x170 [10232.434888][ T253] do_syscall_64+0xc6/0x1e0 [10232.434888][ T253] [10232.438480][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10232.438480][ T253] netdev_get_by_index+0x5e/0x80 [10232.438480][ T253] fib6_nh_init+0x3d8/0x1580 [10232.438480][ T253] ip6_route_info_create+0xf18/0x17d0 [10232.438480][ T253] addrconf_f6i_alloc+0x265/0x560 [10232.438480][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [10232.438480][ T253] addrconf_join_anycast+0x1c0/0x220 [10232.438480][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [10232.438480][ T253] addrconf_dad_completed+0x12b/0xe20 [10232.438480][ T253] addrconf_dad_begin+0x310/0x670 [10232.438480][ T253] addrconf_dad_work+0x10b/0xab0 [10232.438480][ T253] process_one_work+0x84d/0x18a0 [10232.438480][ T253] worker_thread+0x587/0xd30 [10232.438480][ T253] kthread+0x28a/0x350 [10232.438480][ T253] ret_from_fork+0x31/0x70 [10232.438480][ T253] ret_from_fork_asm+0x1a/0x30 [10232.438480][ T253] [10232.441996][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10232.441996][ T253] netdev_get_by_index+0x5e/0x80 [10232.441996][ T253] fib6_nh_init+0x3d8/0x1580 [10232.441996][ T253] ip6_route_info_create+0xf18/0x17d0 [10232.441996][ T253] ip6_route_add+0x1c/0x140 [10232.441996][ T253] addrconf_prefix_route+0x2a6/0x430 [10232.441996][ T253] inet6_addr_add+0x4f8/0xa40 [10232.441996][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10232.441996][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10232.441996][ T253] netlink_rcv_skb+0x130/0x360 [10232.441996][ T253] netlink_unicast+0x449/0x710 [10232.441996][ T253] netlink_sendmsg+0x723/0xbe0 [10232.441996][ T253] ____sys_sendmsg+0x7b2/0xa10 [10232.441996][ T253] ___sys_sendmsg+0xee/0x170 [10232.441996][ T253] __sys_sendmsg+0xcd/0x170 [10232.441996][ T253] do_syscall_64+0xc6/0x1e0 [10232.441996][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10232.441996][ T253] [10232.445689][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10232.445689][ T253] netdev_get_by_index+0x5e/0x80 [10232.445689][ T253] fib6_nh_init+0x3d8/0x1580 [10232.445689][ T253] ip6_route_info_create+0xf18/0x17d0 [10232.445689][ T253] addrconf_f6i_alloc+0x315/0x560 [10232.445689][ T253] ipv6_add_addr+0x411/0x2000 [10232.445689][ T253] inet6_addr_add+0x30e/0xa40 [10232.445689][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10232.445689][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10232.445689][ T253] netlink_rcv_skb+0x130/0x360 [10232.445689][ T253] netlink_unicast+0x449/0x710 [10232.445689][ T253] netlink_sendmsg+0x723/0xbe0 [10232.445689][ T253] ____sys_sendmsg+0x7b2/0xa10 [10232.445689][ T253] ___sys_sendmsg+0xee/0x170 [10232.445689][ T253] __sys_sendmsg+0xcd/0x170 [10232.445689][ T253] do_syscall_64+0xc6/0x1e0 [10232.445689][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10232.445689][ T253] [10232.449378][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10232.449378][ T253] netdev_get_by_index+0x5e/0x80 [10232.449378][ T253] fib6_nh_init+0x3d8/0x1580 [10232.449378][ T253] ip6_route_info_create+0xf18/0x17d0 [10232.449378][ T253] ip6_route_add+0x1c/0x140 [10232.449378][ T253] addrconf_add_mroute+0x1ac/0x2c0 [10232.449378][ T253] addrconf_add_dev+0xe2/0x170 [10232.449378][ T253] inet6_addr_add+0x12f/0xa40 [10232.449378][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10232.449378][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10232.449378][ T253] netlink_rcv_skb+0x130/0x360 [10232.449378][ T253] netlink_unicast+0x449/0x710 [10232.449378][ T253] netlink_sendmsg+0x723/0xbe0 [10232.449378][ T253] ____sys_sendmsg+0x7b2/0xa10 [10232.449378][ T253] ___sys_sendmsg+0xee/0x170 [10232.449378][ T253] __sys_sendmsg+0xcd/0x170 [10232.449378][ T253] do_syscall_64+0xc6/0x1e0 [10232.449378][ T253] [10232.452997][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10232.452997][ T253] ipv6_add_dev+0x3ba/0x11c0 [10232.452997][ T253] ipv6_find_idev+0x102/0x170 [10232.452997][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10232.452997][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10232.452997][ T253] netlink_rcv_skb+0x130/0x360 [10232.452997][ T253] netlink_unicast+0x449/0x710 [10232.452997][ T253] netlink_sendmsg+0x723/0xbe0 [10232.452997][ T253] ____sys_sendmsg+0x7b2/0xa10 [10232.452997][ T253] ___sys_sendmsg+0xee/0x170 [10232.452997][ T253] __sys_sendmsg+0xcd/0x170 [10232.452997][ T253] do_syscall_64+0xc6/0x1e0 [10232.452997][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10232.452997][ T253] [10232.455864][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10232.455864][ T253] neigh_parms_alloc+0x1e5/0x510 [10232.455864][ T253] ipv6_add_dev+0x2fe/0x11c0 [10232.455864][ T253] ipv6_find_idev+0x102/0x170 [10232.455864][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10232.455864][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10232.455864][ T253] netlink_rcv_skb+0x130/0x360 [10232.455864][ T253] netlink_unicast+0x449/0x710 [10232.455864][ T253] netlink_sendmsg+0x723/0xbe0 [10232.455864][ T253] ____sys_sendmsg+0x7b2/0xa10 [10232.455864][ T253] ___sys_sendmsg+0xee/0x170 [10232.455864][ T253] __sys_sendmsg+0xcd/0x170 [10232.455864][ T253] do_syscall_64+0xc6/0x1e0 [10232.455864][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10232.455864][ T253] [10242.498303][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10242.499029][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10242.499029][ T253] dst_init+0x84/0x4a0 [10242.499029][ T253] dst_alloc+0x97/0x150 [10242.499029][ T253] ip6_dst_alloc+0x23/0x90 [10242.499029][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [10242.499029][ T253] ip6_pol_route+0x56f/0x840 [10242.499029][ T253] fib6_rule_lookup+0x334/0x630 [10242.499029][ T253] ip6_route_output_flags+0x259/0x480 [10242.499029][ T253] inet6_rtm_getroute+0x980/0xf70 [10242.499029][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [10242.499029][ T253] netlink_rcv_skb+0x130/0x360 [10242.499029][ T253] netlink_unicast+0x449/0x710 [10242.499029][ T253] netlink_sendmsg+0x723/0xbe0 [10242.499029][ T253] ____sys_sendmsg+0x7b2/0xa10 [10242.499029][ T253] ___sys_sendmsg+0xee/0x170 [10242.499029][ T253] __sys_sendmsg+0xcd/0x170 [10242.499029][ T253] do_syscall_64+0xc6/0x1e0 [10242.499029][ T253] [10242.503282][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10242.503282][ T253] netdev_get_by_index+0x5e/0x80 [10242.503282][ T253] fib6_nh_init+0x3d8/0x1580 [10242.503282][ T253] ip6_route_info_create+0xf18/0x17d0 [10242.503282][ T253] addrconf_f6i_alloc+0x265/0x560 [10242.503282][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [10242.503282][ T253] addrconf_join_anycast+0x1c0/0x220 [10242.503282][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [10242.503282][ T253] addrconf_dad_completed+0x12b/0xe20 [10242.503282][ T253] addrconf_dad_begin+0x310/0x670 [10242.503282][ T253] addrconf_dad_work+0x10b/0xab0 [10242.503282][ T253] process_one_work+0x84d/0x18a0 [10242.503282][ T253] worker_thread+0x587/0xd30 [10242.503282][ T253] kthread+0x28a/0x350 [10242.503282][ T253] ret_from_fork+0x31/0x70 [10242.503282][ T253] ret_from_fork_asm+0x1a/0x30 [10242.503282][ T253] [10242.506565][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10242.506565][ T253] netdev_get_by_index+0x5e/0x80 [10242.506565][ T253] fib6_nh_init+0x3d8/0x1580 [10242.506565][ T253] ip6_route_info_create+0xf18/0x17d0 [10242.506565][ T253] ip6_route_add+0x1c/0x140 [10242.506565][ T253] addrconf_prefix_route+0x2a6/0x430 [10242.506565][ T253] inet6_addr_add+0x4f8/0xa40 [10242.506565][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10242.506565][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10242.506565][ T253] netlink_rcv_skb+0x130/0x360 [10242.506565][ T253] netlink_unicast+0x449/0x710 [10242.506565][ T253] netlink_sendmsg+0x723/0xbe0 [10242.506565][ T253] ____sys_sendmsg+0x7b2/0xa10 [10242.506565][ T253] ___sys_sendmsg+0xee/0x170 [10242.506565][ T253] __sys_sendmsg+0xcd/0x170 [10242.506565][ T253] do_syscall_64+0xc6/0x1e0 [10242.506565][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10242.506565][ T253] [10242.510116][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10242.510116][ T253] netdev_get_by_index+0x5e/0x80 [10242.510116][ T253] fib6_nh_init+0x3d8/0x1580 [10242.510116][ T253] ip6_route_info_create+0xf18/0x17d0 [10242.510116][ T253] addrconf_f6i_alloc+0x315/0x560 [10242.510116][ T253] ipv6_add_addr+0x411/0x2000 [10242.510116][ T253] inet6_addr_add+0x30e/0xa40 [10242.510116][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10242.510116][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10242.510116][ T253] netlink_rcv_skb+0x130/0x360 [10242.510116][ T253] netlink_unicast+0x449/0x710 [10242.510116][ T253] netlink_sendmsg+0x723/0xbe0 [10242.510116][ T253] ____sys_sendmsg+0x7b2/0xa10 [10242.510116][ T253] ___sys_sendmsg+0xee/0x170 [10242.510116][ T253] __sys_sendmsg+0xcd/0x170 [10242.510116][ T253] do_syscall_64+0xc6/0x1e0 [10242.510116][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10242.510116][ T253] [10242.513583][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10242.513583][ T253] netdev_get_by_index+0x5e/0x80 [10242.513583][ T253] fib6_nh_init+0x3d8/0x1580 [10242.513583][ T253] ip6_route_info_create+0xf18/0x17d0 [10242.513583][ T253] ip6_route_add+0x1c/0x140 [10242.513583][ T253] addrconf_add_mroute+0x1ac/0x2c0 [10242.513583][ T253] addrconf_add_dev+0xe2/0x170 [10242.513583][ T253] inet6_addr_add+0x12f/0xa40 [10242.513583][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10242.513583][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10242.513583][ T253] netlink_rcv_skb+0x130/0x360 [10242.513583][ T253] netlink_unicast+0x449/0x710 [10242.513583][ T253] netlink_sendmsg+0x723/0xbe0 [10242.513583][ T253] ____sys_sendmsg+0x7b2/0xa10 [10242.513583][ T253] ___sys_sendmsg+0xee/0x170 [10242.513583][ T253] __sys_sendmsg+0xcd/0x170 [10242.513583][ T253] do_syscall_64+0xc6/0x1e0 [10242.513583][ T253] [10242.517084][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10242.517084][ T253] ipv6_add_dev+0x3ba/0x11c0 [10242.517084][ T253] ipv6_find_idev+0x102/0x170 [10242.517084][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10242.517084][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10242.517084][ T253] netlink_rcv_skb+0x130/0x360 [10242.517084][ T253] netlink_unicast+0x449/0x710 [10242.517084][ T253] netlink_sendmsg+0x723/0xbe0 [10242.517084][ T253] ____sys_sendmsg+0x7b2/0xa10 [10242.517084][ T253] ___sys_sendmsg+0xee/0x170 [10242.517084][ T253] __sys_sendmsg+0xcd/0x170 [10242.517084][ T253] do_syscall_64+0xc6/0x1e0 [10242.517084][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10242.517084][ T253] [10242.519790][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10242.519790][ T253] neigh_parms_alloc+0x1e5/0x510 [10242.519790][ T253] ipv6_add_dev+0x2fe/0x11c0 [10242.519790][ T253] ipv6_find_idev+0x102/0x170 [10242.519790][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10242.519790][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10242.519790][ T253] netlink_rcv_skb+0x130/0x360 [10242.519790][ T253] netlink_unicast+0x449/0x710 [10242.519790][ T253] netlink_sendmsg+0x723/0xbe0 [10242.519790][ T253] ____sys_sendmsg+0x7b2/0xa10 [10242.519790][ T253] ___sys_sendmsg+0xee/0x170 [10242.519790][ T253] __sys_sendmsg+0xcd/0x170 [10242.519790][ T253] do_syscall_64+0xc6/0x1e0 [10242.519790][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10242.519790][ T253] [10252.762337][ T253] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10252.762832][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10252.762832][ T253] dst_init+0x84/0x4a0 [10252.762832][ T253] dst_alloc+0x97/0x150 [10252.762832][ T253] ip6_dst_alloc+0x23/0x90 [10252.762832][ T253] ip6_rt_pcpu_alloc+0x1e6/0x520 [10252.762832][ T253] ip6_pol_route+0x56f/0x840 [10252.762832][ T253] fib6_rule_lookup+0x334/0x630 [10252.762832][ T253] ip6_route_output_flags+0x259/0x480 [10252.762832][ T253] inet6_rtm_getroute+0x980/0xf70 [10252.762832][ T253] rtnetlink_rcv_msg+0x712/0xbf0 [10252.762832][ T253] netlink_rcv_skb+0x130/0x360 [10252.762832][ T253] netlink_unicast+0x449/0x710 [10252.762832][ T253] netlink_sendmsg+0x723/0xbe0 [10252.762832][ T253] ____sys_sendmsg+0x7b2/0xa10 [10252.762832][ T253] ___sys_sendmsg+0xee/0x170 [10252.762832][ T253] __sys_sendmsg+0xcd/0x170 [10252.762832][ T253] do_syscall_64+0xc6/0x1e0 [10252.762832][ T253] [10252.765261][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10252.765261][ T253] netdev_get_by_index+0x5e/0x80 [10252.765261][ T253] fib6_nh_init+0x3d8/0x1580 [10252.765261][ T253] ip6_route_info_create+0xf18/0x17d0 [10252.765261][ T253] addrconf_f6i_alloc+0x265/0x560 [10252.765261][ T253] __ipv6_dev_ac_inc+0x25f/0xb10 [10252.765261][ T253] addrconf_join_anycast+0x1c0/0x220 [10252.765261][ T253] __ipv6_ifa_notify+0x6b3/0xaf0 [10252.765261][ T253] addrconf_dad_completed+0x12b/0xe20 [10252.765261][ T253] addrconf_dad_begin+0x310/0x670 [10252.765261][ T253] addrconf_dad_work+0x10b/0xab0 [10252.765261][ T253] process_one_work+0x84d/0x18a0 [10252.765261][ T253] worker_thread+0x587/0xd30 [10252.765261][ T253] kthread+0x28a/0x350 [10252.765261][ T253] ret_from_fork+0x31/0x70 [10252.765261][ T253] ret_from_fork_asm+0x1a/0x30 [10252.765261][ T253] [10252.767640][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10252.767640][ T253] netdev_get_by_index+0x5e/0x80 [10252.767640][ T253] fib6_nh_init+0x3d8/0x1580 [10252.767640][ T253] ip6_route_info_create+0xf18/0x17d0 [10252.767640][ T253] ip6_route_add+0x1c/0x140 [10252.767640][ T253] addrconf_prefix_route+0x2a6/0x430 [10252.767640][ T253] inet6_addr_add+0x4f8/0xa40 [10252.767640][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10252.767640][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10252.767640][ T253] netlink_rcv_skb+0x130/0x360 [10252.767640][ T253] netlink_unicast+0x449/0x710 [10252.767640][ T253] netlink_sendmsg+0x723/0xbe0 [10252.767640][ T253] ____sys_sendmsg+0x7b2/0xa10 [10252.767640][ T253] ___sys_sendmsg+0xee/0x170 [10252.767640][ T253] __sys_sendmsg+0xcd/0x170 [10252.767640][ T253] do_syscall_64+0xc6/0x1e0 [10252.767640][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10252.767640][ T253] [10252.769889][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10252.769889][ T253] netdev_get_by_index+0x5e/0x80 [10252.769889][ T253] fib6_nh_init+0x3d8/0x1580 [10252.769889][ T253] ip6_route_info_create+0xf18/0x17d0 [10252.769889][ T253] addrconf_f6i_alloc+0x315/0x560 [10252.769889][ T253] ipv6_add_addr+0x411/0x2000 [10252.769889][ T253] inet6_addr_add+0x30e/0xa40 [10252.769889][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10252.769889][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10252.769889][ T253] netlink_rcv_skb+0x130/0x360 [10252.769889][ T253] netlink_unicast+0x449/0x710 [10252.769889][ T253] netlink_sendmsg+0x723/0xbe0 [10252.769889][ T253] ____sys_sendmsg+0x7b2/0xa10 [10252.769889][ T253] ___sys_sendmsg+0xee/0x170 [10252.769889][ T253] __sys_sendmsg+0xcd/0x170 [10252.769889][ T253] do_syscall_64+0xc6/0x1e0 [10252.769889][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10252.769889][ T253] [10252.772131][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10252.772131][ T253] netdev_get_by_index+0x5e/0x80 [10252.772131][ T253] fib6_nh_init+0x3d8/0x1580 [10252.772131][ T253] ip6_route_info_create+0xf18/0x17d0 [10252.772131][ T253] ip6_route_add+0x1c/0x140 [10252.772131][ T253] addrconf_add_mroute+0x1ac/0x2c0 [10252.772131][ T253] addrconf_add_dev+0xe2/0x170 [10252.772131][ T253] inet6_addr_add+0x12f/0xa40 [10252.772131][ T253] inet6_rtm_newaddr+0x560/0x6b0 [10252.772131][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10252.772131][ T253] netlink_rcv_skb+0x130/0x360 [10252.772131][ T253] netlink_unicast+0x449/0x710 [10252.772131][ T253] netlink_sendmsg+0x723/0xbe0 [10252.772131][ T253] ____sys_sendmsg+0x7b2/0xa10 [10252.772131][ T253] ___sys_sendmsg+0xee/0x170 [10252.772131][ T253] __sys_sendmsg+0xcd/0x170 [10252.772131][ T253] do_syscall_64+0xc6/0x1e0 [10252.772131][ T253] [10252.774487][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10252.774487][ T253] ipv6_add_dev+0x3ba/0x11c0 [10252.774487][ T253] ipv6_find_idev+0x102/0x170 [10252.774487][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10252.774487][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10252.774487][ T253] netlink_rcv_skb+0x130/0x360 [10252.774487][ T253] netlink_unicast+0x449/0x710 [10252.774487][ T253] netlink_sendmsg+0x723/0xbe0 [10252.774487][ T253] ____sys_sendmsg+0x7b2/0xa10 [10252.774487][ T253] ___sys_sendmsg+0xee/0x170 [10252.774487][ T253] __sys_sendmsg+0xcd/0x170 [10252.774487][ T253] do_syscall_64+0xc6/0x1e0 [10252.774487][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10252.774487][ T253] [10252.776395][ T253] ref_tracker: dummy0@ffff888007a745e0 has 1/7 users at [10252.776395][ T253] neigh_parms_alloc+0x1e5/0x510 [10252.776395][ T253] ipv6_add_dev+0x2fe/0x11c0 [10252.776395][ T253] ipv6_find_idev+0x102/0x170 [10252.776395][ T253] inet6_rtm_newaddr+0x37c/0x6b0 [10252.776395][ T253] rtnetlink_rcv_msg+0x2fb/0xbf0 [10252.776395][ T253] netlink_rcv_skb+0x130/0x360 [10252.776395][ T253] netlink_unicast+0x449/0x710 [10252.776395][ T253] netlink_sendmsg+0x723/0xbe0 [10252.776395][ T253] ____sys_sendmsg+0x7b2/0xa10 [10252.776395][ T253] ___sys_sendmsg+0xee/0x170 [10252.776395][ T253] __sys_sendmsg+0xcd/0x170 [10252.776395][ T253] do_syscall_64+0xc6/0x1e0 [10252.776395][ T253] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10252.776395][ T253] HARD STOP (10147.798863) WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr