[    1.912247] ip (247) used greatest stack depth: 12376 bytes left
[    2.501847] ip (281) used greatest stack depth: 12360 bytes left
[    2.551239] ip (285) used greatest stack depth: 12344 bytes left
[   15.326427] mpls_gso: MPLS GSO support
[   25.191681] ip (2388) used greatest stack depth: 12192 bytes left
[  970.280287] blackhole_netdev_xmit(): Dropping skb.
[  970.280349] blackhole_netdev_xmit(): Dropping skb.
[  970.280381] blackhole_netdev_xmit(): Dropping skb.
[  970.280408] blackhole_netdev_xmit(): Dropping skb.