[    1.848437] ip (260) used greatest stack depth: 12304 bytes left
[    2.247047] ip (294) used greatest stack depth: 12288 bytes left
[   13.223055] mpls_gso: MPLS GSO support
[  734.226589] blackhole_netdev_xmit(): Dropping skb.
[  734.226715] blackhole_netdev_xmit(): Dropping skb.
[  734.226782] blackhole_netdev_xmit(): Dropping skb.
[  734.226841] blackhole_netdev_xmit(): Dropping skb.