[    2.708367] ip (280) used greatest stack depth: 12360 bytes left
[    2.758954] ip (284) used greatest stack depth: 12344 bytes left
[   16.910987] mpls_gso: MPLS GSO support
[  638.941228] ip (17854) used greatest stack depth: 12192 bytes left
[ 1125.224542] blackhole_netdev_xmit(): Dropping skb.
[ 1125.224658] blackhole_netdev_xmit(): Dropping skb.
[ 1125.224718] blackhole_netdev_xmit(): Dropping skb.
[ 1125.224777] blackhole_netdev_xmit(): Dropping skb.