[    2.373796] ip (282) used greatest stack depth: 12272 bytes left
[    5.453908] ip (451) used greatest stack depth: 12144 bytes left
[   13.957306] mpls_gso: MPLS GSO support
[  729.364205] blackhole_netdev_xmit(): Dropping skb.
[  729.364265] blackhole_netdev_xmit(): Dropping skb.
[  729.364296] blackhole_netdev_xmit(): Dropping skb.
[  729.364323] blackhole_netdev_xmit(): Dropping skb.
[  968.300848] blackhole_netdev_xmit(): Dropping skb.
[  968.300897] blackhole_netdev_xmit(): Dropping skb.
[  968.300928] blackhole_netdev_xmit(): Dropping skb.
[  968.300958] blackhole_netdev_xmit(): Dropping skb.