[    2.874641] ip (281) used greatest stack depth: 12344 bytes left
[   17.086796] mpls_gso: MPLS GSO support
[   23.680175] ip (2240) used greatest stack depth: 12328 bytes left
[  331.856595] ip (30783) used greatest stack depth: 12288 bytes left
[  931.526211] blackhole_netdev_xmit(): Dropping skb.
[  931.526277] blackhole_netdev_xmit(): Dropping skb.
[  931.526313] blackhole_netdev_xmit(): Dropping skb.
[  931.526349] blackhole_netdev_xmit(): Dropping skb.