[    3.042253] ip (280) used greatest stack depth: 12344 bytes left
[    9.667478] ip (668) used greatest stack depth: 12288 bytes left
[   18.990746] mpls_gso: MPLS GSO support
[  654.955688] ip (30336) used greatest stack depth: 12192 bytes left
[  902.703767] blackhole_netdev_xmit(): Dropping skb.
[  902.703825] blackhole_netdev_xmit(): Dropping skb.
[  902.703860] blackhole_netdev_xmit(): Dropping skb.
[  902.703895] blackhole_netdev_xmit(): Dropping skb.