[    2.013986] ip (248) used greatest stack depth: 12376 bytes left
[    2.639350] ip (282) used greatest stack depth: 12344 bytes left
[    5.904862] ip (418) used greatest stack depth: 12328 bytes left
[   10.749525] ip (803) used greatest stack depth: 12192 bytes left
[   16.657817] mpls_gso: MPLS GSO support
[  674.751412] blackhole_netdev_xmit(): Dropping skb.
[  674.751489] blackhole_netdev_xmit(): Dropping skb.
[  674.751537] blackhole_netdev_xmit(): Dropping skb.
[  674.751580] blackhole_netdev_xmit(): Dropping skb.
[ 1167.744790] blackhole_netdev_xmit(): Dropping skb.
[ 1167.744865] blackhole_netdev_xmit(): Dropping skb.
[ 1167.744898] blackhole_netdev_xmit(): Dropping skb.
[ 1167.744924] blackhole_netdev_xmit(): Dropping skb.