[    1.521709] ip (260) used greatest stack depth: 12832 bytes left
[    1.879200] ip (294) used greatest stack depth: 12376 bytes left
[   11.188827] mpls_gso: MPLS GSO support
[  631.536653] ip (28824) used greatest stack depth: 12360 bytes left
[ 1095.728628] blackhole_netdev_xmit(): Dropping skb.
[ 1095.728697] blackhole_netdev_xmit(): Dropping skb.
[ 1095.728740] blackhole_netdev_xmit(): Dropping skb.
[ 1095.728781] blackhole_netdev_xmit(): Dropping skb.