[    3.194149] ip (292) used greatest stack depth: 12384 bytes left
[   19.578899] mpls_gso: MPLS GSO support
[   27.166990] ip (2201) used greatest stack depth: 12256 bytes left
[ 1163.980280] blackhole_netdev_xmit(): Dropping skb.
[ 1163.980357] blackhole_netdev_xmit(): Dropping skb.
[ 1163.980396] blackhole_netdev_xmit(): Dropping skb.
[ 1163.980432] blackhole_netdev_xmit(): Dropping skb.