[    2.446136] ip (279) used greatest stack depth: 12344 bytes left
[    5.520071] ip (443) used greatest stack depth: 12240 bytes left
[   14.237487] mpls_gso: MPLS GSO support
[  971.530656] blackhole_netdev_xmit(): Dropping skb.
[  971.530717] blackhole_netdev_xmit(): Dropping skb.
[  971.530748] blackhole_netdev_xmit(): Dropping skb.
[  971.530780] blackhole_netdev_xmit(): Dropping skb.
[  989.019165] blackhole_netdev_xmit(): Dropping skb.
[  989.019235] blackhole_netdev_xmit(): Dropping skb.
[  989.019275] blackhole_netdev_xmit(): Dropping skb.
[  989.019329] blackhole_netdev_xmit(): Dropping skb.