[    2.771882] ip (300) used greatest stack depth: 12288 bytes left
[   16.853644] mpls_gso: MPLS GSO support
[  847.185198] blackhole_netdev_xmit(): Dropping skb.
[  847.185273] blackhole_netdev_xmit(): Dropping skb.
[  847.185317] blackhole_netdev_xmit(): Dropping skb.
[  847.185377] blackhole_netdev_xmit(): Dropping skb.
[  960.398122] ip (18432) used greatest stack depth: 12256 bytes left