[    2.033994] ip (293) used greatest stack depth: 12248 bytes left
[    2.188555] ip (309) used greatest stack depth: 12104 bytes left
[   10.817566] mpls_gso: MPLS GSO support
[  830.469400] blackhole_netdev_xmit(): Dropping skb.
[  830.469483] blackhole_netdev_xmit(): Dropping skb.
[  830.469532] blackhole_netdev_xmit(): Dropping skb.
[  830.469582] blackhole_netdev_xmit(): Dropping skb.
[  971.638191] blackhole_netdev_xmit(): Dropping skb.
[  971.638273] blackhole_netdev_xmit(): Dropping skb.
[  971.638322] blackhole_netdev_xmit(): Dropping skb.
[  971.638373] blackhole_netdev_xmit(): Dropping skb.