[    1.709397] ip (252) used greatest stack depth: 12832 bytes left
[    1.752710] ip (258) used greatest stack depth: 12280 bytes left
[   11.223520] mpls_gso: MPLS GSO support
[  723.979280] blackhole_netdev_xmit(): Dropping skb.
[  723.979417] blackhole_netdev_xmit(): Dropping skb.
[  723.979496] blackhole_netdev_xmit(): Dropping skb.
[  723.979570] blackhole_netdev_xmit(): Dropping skb.