[    1.909885] ip (246) used greatest stack depth: 12376 bytes left
[    2.571999] ip (280) used greatest stack depth: 12344 bytes left
[   16.099264] mpls_gso: MPLS GSO support
[  850.429832] blackhole_netdev_xmit(): Dropping skb.
[  850.429913] blackhole_netdev_xmit(): Dropping skb.
[  850.429961] blackhole_netdev_xmit(): Dropping skb.
[  850.430005] blackhole_netdev_xmit(): Dropping skb.
[  860.732795] blackhole_netdev_xmit(): Dropping skb.
[  860.732862] blackhole_netdev_xmit(): Dropping skb.
[  860.732908] blackhole_netdev_xmit(): Dropping skb.
[  860.732949] blackhole_netdev_xmit(): Dropping skb.