[    1.783103] ip (259) used greatest stack depth: 12280 bytes left
[    2.255113] ip (293) used greatest stack depth: 12248 bytes left
[   12.743720] mpls_gso: MPLS GSO support
[  979.660810] blackhole_netdev_xmit(): Dropping skb.
[  979.660930] blackhole_netdev_xmit(): Dropping skb.
[  979.661010] blackhole_netdev_xmit(): Dropping skb.
[  979.661071] blackhole_netdev_xmit(): Dropping skb.