[    1.898033] ip (248) used greatest stack depth: 12376 bytes left
[    2.471220] ip (282) used greatest stack depth: 12344 bytes left
[   14.725348] mpls_gso: MPLS GSO support
[   24.373801] ip (2388) used greatest stack depth: 12192 bytes left
[  840.312055] blackhole_netdev_xmit(): Dropping skb.
[  840.312216] blackhole_netdev_xmit(): Dropping skb.
[  840.312253] blackhole_netdev_xmit(): Dropping skb.
[  840.312285] blackhole_netdev_xmit(): Dropping skb.
[ 1136.178274] blackhole_netdev_xmit(): Dropping skb.
[ 1136.178340] blackhole_netdev_xmit(): Dropping skb.
[ 1136.178374] blackhole_netdev_xmit(): Dropping skb.
[ 1136.178406] blackhole_netdev_xmit(): Dropping skb.