[    2.122506] ip (293) used greatest stack depth: 12248 bytes left
[   10.094401] ip (1136) used greatest stack depth: 12224 bytes left
[   11.887685] mpls_gso: MPLS GSO support
[  811.352807] blackhole_netdev_xmit(): Dropping skb.
[  811.352861] blackhole_netdev_xmit(): Dropping skb.
[  811.352913] blackhole_netdev_xmit(): Dropping skb.
[  811.352946] blackhole_netdev_xmit(): Dropping skb.