[    1.597761] ip (261) used greatest stack depth: 12280 bytes left
[    2.016476] ip (295) used greatest stack depth: 12248 bytes left
[   13.070050] mpls_gso: MPLS GSO support
[  662.656242] blackhole_netdev_xmit(): Dropping skb.
[  662.656384] blackhole_netdev_xmit(): Dropping skb.
[  662.656454] blackhole_netdev_xmit(): Dropping skb.
[  662.656528] blackhole_netdev_xmit(): Dropping skb.
[ 1066.853011] blackhole_netdev_xmit(): Dropping skb.
[ 1066.853104] blackhole_netdev_xmit(): Dropping skb.
[ 1066.853157] blackhole_netdev_xmit(): Dropping skb.
[ 1066.853209] blackhole_netdev_xmit(): Dropping skb.