[    2.032112] ip (295) used greatest stack depth: 12232 bytes left
[   12.322043] mpls_gso: MPLS GSO support
[   12.565887] ip (1430) used greatest stack depth: 12216 bytes left
[ 1144.103274] blackhole_netdev_xmit(): Dropping skb.
[ 1144.103336] blackhole_netdev_xmit(): Dropping skb.
[ 1144.103389] blackhole_netdev_xmit(): Dropping skb.
[ 1144.103431] blackhole_netdev_xmit(): Dropping skb.