[    1.537123] ip (258) used greatest stack depth: 12280 bytes left
[   10.785113] mpls_gso: MPLS GSO support
[  963.838662] blackhole_netdev_xmit(): Dropping skb.
[  963.838723] blackhole_netdev_xmit(): Dropping skb.
[  963.838766] blackhole_netdev_xmit(): Dropping skb.
[  963.838814] blackhole_netdev_xmit(): Dropping skb.