[    2.010421] ip (246) used greatest stack depth: 12376 bytes left
[    2.699693] ip (280) used greatest stack depth: 12344 bytes left
[   13.529049] ip (1080) used greatest stack depth: 12304 bytes left
[   16.465535] mpls_gso: MPLS GSO support
[  905.449202] blackhole_netdev_xmit(): Dropping skb.
[  905.449275] blackhole_netdev_xmit(): Dropping skb.
[  905.449320] blackhole_netdev_xmit(): Dropping skb.
[  905.449364] blackhole_netdev_xmit(): Dropping skb.