[    2.070192] ip (247) used greatest stack depth: 12376 bytes left
[    2.107177] ip (250) used greatest stack depth: 12328 bytes left
[   12.207542] ip (975) used greatest stack depth: 12192 bytes left
[   16.987137] mpls_gso: MPLS GSO support
[  875.379762] blackhole_netdev_xmit(): Dropping skb.
[  875.379913] blackhole_netdev_xmit(): Dropping skb.
[  875.379949] blackhole_netdev_xmit(): Dropping skb.
[  875.379981] blackhole_netdev_xmit(): Dropping skb.