[    1.882630] ip (295) used greatest stack depth: 12272 bytes left
[   11.006914] mpls_gso: MPLS GSO support
[  999.149353] blackhole_netdev_xmit(): Dropping skb.
[  999.149438] blackhole_netdev_xmit(): Dropping skb.
[  999.149497] blackhole_netdev_xmit(): Dropping skb.
[  999.149562] blackhole_netdev_xmit(): Dropping skb.