[    2.608599] ip (280) used greatest stack depth: 12344 bytes left
[   16.625187] mpls_gso: MPLS GSO support
[  664.204811] blackhole_netdev_xmit(): Dropping skb.
[  664.204866] blackhole_netdev_xmit(): Dropping skb.
[  664.204898] blackhole_netdev_xmit(): Dropping skb.
[  664.204929] blackhole_netdev_xmit(): Dropping skb.