[   16.319398] mpls_gso: MPLS GSO support
[   28.528706] ip (2685) used greatest stack depth: 12064 bytes left
[  810.498634] blackhole_netdev_xmit(): Dropping skb.
[  810.498754] blackhole_netdev_xmit(): Dropping skb.
[  810.498797] blackhole_netdev_xmit(): Dropping skb.
[  810.498842] blackhole_netdev_xmit(): Dropping skb.