[    2.604780] ip (278) used greatest stack depth: 12360 bytes left
[    2.652451] ip (283) used greatest stack depth: 12344 bytes left
[   16.492397] mpls_gso: MPLS GSO support
[  816.043862] blackhole_netdev_xmit(): Dropping skb.
[  816.043938] blackhole_netdev_xmit(): Dropping skb.
[  816.044000] blackhole_netdev_xmit(): Dropping skb.
[  816.044050] blackhole_netdev_xmit(): Dropping skb.