[    2.711162] ip (281) used greatest stack depth: 12344 bytes left
[   16.639619] mpls_gso: MPLS GSO support
[  636.670706] ip (26744) used greatest stack depth: 12288 bytes left
[  857.644030] blackhole_netdev_xmit(): Dropping skb.
[  857.644106] blackhole_netdev_xmit(): Dropping skb.
[  857.644144] blackhole_netdev_xmit(): Dropping skb.
[  857.644180] blackhole_netdev_xmit(): Dropping skb.