[    1.795715] ip (293) used greatest stack depth: 12288 bytes left
[   11.452801] mpls_gso: MPLS GSO support
[  846.375031] blackhole_netdev_xmit(): Dropping skb.
[  846.375101] blackhole_netdev_xmit(): Dropping skb.
[  846.375151] blackhole_netdev_xmit(): Dropping skb.
[  846.375200] blackhole_netdev_xmit(): Dropping skb.