[    2.235776] ip (251) used greatest stack depth: 12288 bytes left
[    3.013788] ip (285) used greatest stack depth: 12272 bytes left
[   17.010163] mpls_gso: MPLS GSO support
[ 1152.982162] blackhole_netdev_xmit(): Dropping skb.
[ 1152.982231] blackhole_netdev_xmit(): Dropping skb.
[ 1152.982262] blackhole_netdev_xmit(): Dropping skb.
[ 1152.982293] blackhole_netdev_xmit(): Dropping skb.