[ 9678.930507] unregister_netdevice: waiting for xfrm0 to become free. Usage count = 8
[ 9679.938498] unregister_netdevice: waiting for link1 to become free. Usage count = 10
[ 9679.938650] unregister_netdevice: waiting for link0 to become free. Usage count = 11
[ 9680.874500] unregister_netdevice: waiting for eth0.20 to become free. Usage count = 6
[ 9680.874645] unregister_netdevice: waiting for eth0.10 to become free. Usage count = 6
[ 9680.874687] unregister_netdevice: waiting for eth0 to become free. Usage count = 3
[ 9689.170521] unregister_netdevice: waiting for xfrm0 to become free. Usage count = 8
[ 9690.178570] unregister_netdevice: waiting for link1 to become free. Usage count = 10
[ 9690.178730] unregister_netdevice: waiting for link0 to become free. Usage count = 11
[ 9691.114570] unregister_netdevice: waiting for eth0.20 to become free. Usage count = 6
[ 9691.114686] unregister_netdevice: waiting for eth0.10 to become free. Usage count = 6
[ 9691.114734] unregister_netdevice: waiting for eth0 to become free. Usage count = 3
[ 9699.410554] unregister_netdevice: waiting for xfrm0 to become free. Usage count = 8
[ 9700.418572] unregister_netdevice: waiting for link1 to become free. Usage count = 10
[ 9700.418753] unregister_netdevice: waiting for link0 to become free. Usage count = 11
[ 9701.354624] unregister_netdevice: waiting for eth0.20 to become free. Usage count = 6
[ 9701.354740] unregister_netdevice: waiting for eth0.10 to become free. Usage count = 6
[ 9701.354787] unregister_netdevice: waiting for eth0 to become free. Usage count = 3
[ 9709.650505] unregister_netdevice: waiting for xfrm0 to become free. Usage count = 8
[ 9710.658576] unregister_netdevice: waiting for link1 to become free. Usage count = 10
[ 9710.658755] unregister_netdevice: waiting for link0 to become free. Usage count = 11
[ 9711.594509] unregister_netdevice: waiting for eth0.20 to become free. Usage count = 6
[ 9711.594682] unregister_netdevice: waiting for eth0.10 to become free. Usage count = 6
[ 9711.594725] unregister_netdevice: waiting for eth0 to become free. Usage count = 3