[    2.330299] ip (279) used greatest stack depth: 12344 bytes left
[    2.517140] ip (293) used greatest stack depth: 12064 bytes left
[   14.815123] mpls_gso: MPLS GSO support
[  737.821237] blackhole_netdev_xmit(): Dropping skb.
[  737.821294] blackhole_netdev_xmit(): Dropping skb.
[  737.821324] blackhole_netdev_xmit(): Dropping skb.
[  737.821349] blackhole_netdev_xmit(): Dropping skb.
[  876.524826] blackhole_netdev_xmit(): Dropping skb.
[  876.524886] blackhole_netdev_xmit(): Dropping skb.
[  876.524920] blackhole_netdev_xmit(): Dropping skb.
[  876.524951] blackhole_netdev_xmit(): Dropping skb.