[    1.530317] ip (267) used greatest stack depth: 12184 bytes left
[    4.751714] ip (478) used greatest stack depth: 11928 bytes left
[   10.515723] mpls_gso: MPLS GSO support
[  729.319715] blackhole_netdev_xmit(): Dropping skb.
[  729.319825] blackhole_netdev_xmit(): Dropping skb.
[  729.319878] blackhole_netdev_xmit(): Dropping skb.
[  729.319940] blackhole_netdev_xmit(): Dropping skb.
[ 1088.387294] blackhole_netdev_xmit(): Dropping skb.
[ 1088.387361] blackhole_netdev_xmit(): Dropping skb.
[ 1088.387407] blackhole_netdev_xmit(): Dropping skb.
[ 1088.387443] blackhole_netdev_xmit(): Dropping skb.
[ 1231.943034] blackhole_netdev_xmit(): Dropping skb.
[ 1231.943094] blackhole_netdev_xmit(): Dropping skb.
[ 1231.943135] blackhole_netdev_xmit(): Dropping skb.
[ 1231.943175] blackhole_netdev_xmit(): Dropping skb.