[    2.449653] ip (285) used greatest stack depth: 12384 bytes left
[   15.565470] mpls_gso: MPLS GSO support
[  654.539119] blackhole_netdev_xmit(): Dropping skb.
[  654.539189] blackhole_netdev_xmit(): Dropping skb.
[  654.539224] blackhole_netdev_xmit(): Dropping skb.
[  654.539261] blackhole_netdev_xmit(): Dropping skb.