[ 1.978629] ip (247) used greatest stack depth: 12376 bytes left [ 2.627827] ip (281) used greatest stack depth: 12344 bytes left [ 16.820925] mpls_gso: MPLS GSO support [ 30.301718] ip (2613) used greatest stack depth: 12192 bytes left [ 1178.866019] blackhole_netdev_xmit(): Dropping skb. [ 1178.866108] blackhole_netdev_xmit(): Dropping skb. [ 1178.866156] blackhole_netdev_xmit(): Dropping skb. [ 1178.866199] blackhole_netdev_xmit(): Dropping skb.