[    2.886462] ip (278) used greatest stack depth: 12344 bytes left
[   16.489319] mpls_gso: MPLS GSO support
[  958.481828] ip (29110) used greatest stack depth: 12288 bytes left
[ 1000.982312] blackhole_netdev_xmit(): Dropping skb.
[ 1000.982369] blackhole_netdev_xmit(): Dropping skb.
[ 1000.982400] blackhole_netdev_xmit(): Dropping skb.
[ 1000.982428] blackhole_netdev_xmit(): Dropping skb.