[    2.364826] ip (254) used greatest stack depth: 12328 bytes left
[   19.001632] mpls_gso: MPLS GSO support
[  657.618517] blackhole_netdev_xmit(): Dropping skb.
[  657.618596] blackhole_netdev_xmit(): Dropping skb.
[  657.618632] blackhole_netdev_xmit(): Dropping skb.
[  657.618672] blackhole_netdev_xmit(): Dropping skb.