[    2.057016] ip (247) used greatest stack depth: 12304 bytes left
[    2.708394] ip (281) used greatest stack depth: 12272 bytes left
[   16.692467] mpls_gso: MPLS GSO support
[ 1161.402081] blackhole_netdev_xmit(): Dropping skb.
[ 1161.402159] blackhole_netdev_xmit(): Dropping skb.
[ 1161.402192] blackhole_netdev_xmit(): Dropping skb.
[ 1161.402219] blackhole_netdev_xmit(): Dropping skb.