[    2.765716] ip (280) used greatest stack depth: 12344 bytes left
[   17.421120] mpls_gso: MPLS GSO support
[   24.625537] ip (2278) used greatest stack depth: 12064 bytes left
[  960.586333] blackhole_netdev_xmit(): Dropping skb.
[  960.586393] blackhole_netdev_xmit(): Dropping skb.
[  960.586429] blackhole_netdev_xmit(): Dropping skb.
[  960.586461] blackhole_netdev_xmit(): Dropping skb.