[    2.962268] ip (300) used greatest stack depth: 12384 bytes left
[    6.553956] ip (469) used greatest stack depth: 12128 bytes left
[   16.972352] mpls_gso: MPLS GSO support
[  895.121042] blackhole_netdev_xmit(): Dropping skb.
[  895.121133] blackhole_netdev_xmit(): Dropping skb.
[  895.121186] blackhole_netdev_xmit(): Dropping skb.
[  895.121247] blackhole_netdev_xmit(): Dropping skb.
[ 1066.474921] blackhole_netdev_xmit(): Dropping skb.
[ 1066.474988] blackhole_netdev_xmit(): Dropping skb.
[ 1066.475019] blackhole_netdev_xmit(): Dropping skb.
[ 1066.475045] blackhole_netdev_xmit(): Dropping skb.