[    1.922661] ip (246) used greatest stack depth: 12376 bytes left
[    2.588270] ip (280) used greatest stack depth: 12344 bytes left
[   16.099626] mpls_gso: MPLS GSO support
[  772.203617] blackhole_netdev_xmit(): Dropping skb.
[  772.203756] blackhole_netdev_xmit(): Dropping skb.
[  772.203795] blackhole_netdev_xmit(): Dropping skb.
[  772.203829] blackhole_netdev_xmit(): Dropping skb.
[  952.608733] blackhole_netdev_xmit(): Dropping skb.
[  952.608800] blackhole_netdev_xmit(): Dropping skb.
[  952.608844] blackhole_netdev_xmit(): Dropping skb.
[  952.608887] blackhole_netdev_xmit(): Dropping skb.