[    1.934463] ip (246) used greatest stack depth: 12376 bytes left
[    2.610882] ip (281) used greatest stack depth: 12344 bytes left
[   15.974351] mpls_gso: MPLS GSO support
[  770.871772] blackhole_netdev_xmit(): Dropping skb.
[  770.871844] blackhole_netdev_xmit(): Dropping skb.
[  770.871884] blackhole_netdev_xmit(): Dropping skb.
[  770.871933] blackhole_netdev_xmit(): Dropping skb.