[    2.135375] ip (258) used greatest stack depth: 12240 bytes left
[   11.147037] ip (823) used greatest stack depth: 12144 bytes left
[   17.813163] mpls_gso: MPLS GSO support
[  694.724112] blackhole_netdev_xmit(): Dropping skb.
[  694.724266] blackhole_netdev_xmit(): Dropping skb.
[  694.724300] blackhole_netdev_xmit(): Dropping skb.
[  694.724333] blackhole_netdev_xmit(): Dropping skb.