[    2.594355] ip (280) used greatest stack depth: 12272 bytes left
[    6.383497] ip (465) used greatest stack depth: 12112 bytes left
[   16.859713] mpls_gso: MPLS GSO support
[  929.647311] blackhole_netdev_xmit(): Dropping skb.
[  929.647385] blackhole_netdev_xmit(): Dropping skb.
[  929.647428] blackhole_netdev_xmit(): Dropping skb.
[  929.647459] blackhole_netdev_xmit(): Dropping skb.
[ 1213.336470] blackhole_netdev_xmit(): Dropping skb.
[ 1213.336539] blackhole_netdev_xmit(): Dropping skb.
[ 1213.336569] blackhole_netdev_xmit(): Dropping skb.
[ 1213.336601] blackhole_netdev_xmit(): Dropping skb.