[    2.678059] ip (282) used greatest stack depth: 12272 bytes left
[   16.971911] mpls_gso: MPLS GSO support
[  870.523569] blackhole_netdev_xmit(): Dropping skb.
[  870.523732] blackhole_netdev_xmit(): Dropping skb.
[  870.523765] blackhole_netdev_xmit(): Dropping skb.
[  870.523797] blackhole_netdev_xmit(): Dropping skb.