[    2.925036] ip (278) used greatest stack depth: 12344 bytes left
[   18.705705] mpls_gso: MPLS GSO support
[  732.027515] blackhole_netdev_xmit(): Dropping skb.
[  732.027580] blackhole_netdev_xmit(): Dropping skb.
[  732.027615] blackhole_netdev_xmit(): Dropping skb.
[  732.027647] blackhole_netdev_xmit(): Dropping skb.