[    2.827563] ip (280) used greatest stack depth: 12344 bytes left
[   11.851385] ip (924) used greatest stack depth: 12328 bytes left
[   16.976903] mpls_gso: MPLS GSO support
[ 1037.649253] blackhole_netdev_xmit(): Dropping skb.
[ 1037.649330] blackhole_netdev_xmit(): Dropping skb.
[ 1037.649372] blackhole_netdev_xmit(): Dropping skb.
[ 1037.649411] blackhole_netdev_xmit(): Dropping skb.