[    2.645198] ip (279) used greatest stack depth: 12344 bytes left
[   15.797019] mpls_gso: MPLS GSO support
[   22.560613] ip (2279) used greatest stack depth: 12192 bytes left
[  939.504794] blackhole_netdev_xmit(): Dropping skb.
[  939.504854] blackhole_netdev_xmit(): Dropping skb.
[  939.504887] blackhole_netdev_xmit(): Dropping skb.
[  939.504925] blackhole_netdev_xmit(): Dropping skb.