[    1.921969] ip (294) used greatest stack depth: 12272 bytes left
[   12.079649] mpls_gso: MPLS GSO support
[  938.210520] blackhole_netdev_xmit(): Dropping skb.
[  938.210622] blackhole_netdev_xmit(): Dropping skb.
[  938.210674] blackhole_netdev_xmit(): Dropping skb.
[  938.210722] blackhole_netdev_xmit(): Dropping skb.