[    2.209217] ip (294) used greatest stack depth: 12248 bytes left
[   12.843386] mpls_gso: MPLS GSO support
[  961.406466] blackhole_netdev_xmit(): Dropping skb.
[  961.406548] blackhole_netdev_xmit(): Dropping skb.
[  961.406604] blackhole_netdev_xmit(): Dropping skb.
[  961.406657] blackhole_netdev_xmit(): Dropping skb.