[    1.949934] ip (251) used greatest stack depth: 12376 bytes left
[    2.495726] ip (282) used greatest stack depth: 12344 bytes left
[   12.256277] ip (1051) used greatest stack depth: 12328 bytes left
[   15.609715] mpls_gso: MPLS GSO support
[  649.862956] ip (29379) used greatest stack depth: 12192 bytes left
[ 1018.576296] blackhole_netdev_xmit(): Dropping skb.
[ 1018.576372] blackhole_netdev_xmit(): Dropping skb.
[ 1018.576417] blackhole_netdev_xmit(): Dropping skb.
[ 1018.576458] blackhole_netdev_xmit(): Dropping skb.