[    2.152427] ip (246) used greatest stack depth: 12376 bytes left
[    2.934185] ip (280) used greatest stack depth: 12344 bytes left
[   18.125552] mpls_gso: MPLS GSO support
[ 1106.122248] blackhole_netdev_xmit(): Dropping skb.
[ 1106.122313] blackhole_netdev_xmit(): Dropping skb.
[ 1106.122346] blackhole_netdev_xmit(): Dropping skb.
[ 1106.122376] blackhole_netdev_xmit(): Dropping skb.