[    2.045696] ip (292) used greatest stack depth: 12248 bytes left
[    8.050424] ip (954) used greatest stack depth: 12232 bytes left
[   11.372303] mpls_gso: MPLS GSO support
[  928.755871] blackhole_netdev_xmit(): Dropping skb.
[  928.755949] blackhole_netdev_xmit(): Dropping skb.
[  928.756013] blackhole_netdev_xmit(): Dropping skb.
[  928.756072] blackhole_netdev_xmit(): Dropping skb.
[ 1079.566099] blackhole_netdev_xmit(): Dropping skb.
[ 1079.566228] blackhole_netdev_xmit(): Dropping skb.
[ 1079.566302] blackhole_netdev_xmit(): Dropping skb.
[ 1079.566369] blackhole_netdev_xmit(): Dropping skb.