[    2.627356] ip (292) used greatest stack depth: 12272 bytes left
[   15.442563] mpls_gso: MPLS GSO support
[  905.057929] blackhole_netdev_xmit(): Dropping skb.
[  905.057997] blackhole_netdev_xmit(): Dropping skb.
[  905.058028] blackhole_netdev_xmit(): Dropping skb.
[  905.058058] blackhole_netdev_xmit(): Dropping skb.