[    1.953705] ip (247) used greatest stack depth: 12304 bytes left
[    2.525580] ip (281) used greatest stack depth: 12272 bytes left
[   15.163591] mpls_gso: MPLS GSO support
[  719.016948] blackhole_netdev_xmit(): Dropping skb.
[  719.017026] blackhole_netdev_xmit(): Dropping skb.
[  719.017065] blackhole_netdev_xmit(): Dropping skb.
[  719.017102] blackhole_netdev_xmit(): Dropping skb.
[  787.295482] blackhole_netdev_xmit(): Dropping skb.
[  787.295548] blackhole_netdev_xmit(): Dropping skb.
[  787.295589] blackhole_netdev_xmit(): Dropping skb.
[  787.295641] blackhole_netdev_xmit(): Dropping skb.