[    1.925150] ip (294) used greatest stack depth: 12248 bytes left
[   10.677335] mpls_gso: MPLS GSO support
[  945.574125] blackhole_netdev_xmit(): Dropping skb.
[  945.574195] blackhole_netdev_xmit(): Dropping skb.
[  945.574240] blackhole_netdev_xmit(): Dropping skb.
[  945.574291] blackhole_netdev_xmit(): Dropping skb.