[    2.115340] ip (247) used greatest stack depth: 12376 bytes left
[    2.736984] ip (281) used greatest stack depth: 12344 bytes left
[   16.454561] mpls_gso: MPLS GSO support
[  723.851737] blackhole_netdev_xmit(): Dropping skb.
[  723.851806] blackhole_netdev_xmit(): Dropping skb.
[  723.851844] blackhole_netdev_xmit(): Dropping skb.
[  723.851881] blackhole_netdev_xmit(): Dropping skb.