[    1.977662] ip (294) used greatest stack depth: 12248 bytes left
[   11.682157] mpls_gso: MPLS GSO support
[  858.228009] blackhole_netdev_xmit(): Dropping skb.
[  858.228078] blackhole_netdev_xmit(): Dropping skb.
[  858.228129] blackhole_netdev_xmit(): Dropping skb.
[  858.228163] blackhole_netdev_xmit(): Dropping skb.