[    2.040748] ip (292) used greatest stack depth: 12248 bytes left
[   11.797309] mpls_gso: MPLS GSO support
[  776.294418] blackhole_netdev_xmit(): Dropping skb.
[  776.294476] blackhole_netdev_xmit(): Dropping skb.
[  776.294513] blackhole_netdev_xmit(): Dropping skb.
[  776.294547] blackhole_netdev_xmit(): Dropping skb.
[  940.150952] ip (3368) used greatest stack depth: 12232 bytes left