[    2.018510] ip (293) used greatest stack depth: 12232 bytes left
[    7.467361] ip (784) used greatest stack depth: 12216 bytes left
[   12.687305] mpls_gso: MPLS GSO support
[ 1008.236921] blackhole_netdev_xmit(): Dropping skb.
[ 1008.237050] blackhole_netdev_xmit(): Dropping skb.
[ 1008.237116] blackhole_netdev_xmit(): Dropping skb.
[ 1008.237165] blackhole_netdev_xmit(): Dropping skb.