[    2.360991] ip (293) used greatest stack depth: 12248 bytes left
[   13.621133] mpls_gso: MPLS GSO support
[  705.394244] blackhole_netdev_xmit(): Dropping skb.
[  705.394301] blackhole_netdev_xmit(): Dropping skb.
[  705.394341] blackhole_netdev_xmit(): Dropping skb.
[  705.394376] blackhole_netdev_xmit(): Dropping skb.