[    2.712641] ip (282) used greatest stack depth: 12344 bytes left
[   18.029439] mpls_gso: MPLS GSO support
[  639.845533] ip (26609) used greatest stack depth: 12288 bytes left
[  704.850453] blackhole_netdev_xmit(): Dropping skb.
[  704.850514] blackhole_netdev_xmit(): Dropping skb.
[  704.850545] blackhole_netdev_xmit(): Dropping skb.
[  704.850572] blackhole_netdev_xmit(): Dropping skb.
[ 1100.432716] blackhole_netdev_xmit(): Dropping skb.
[ 1100.432802] blackhole_netdev_xmit(): Dropping skb.
[ 1100.432840] blackhole_netdev_xmit(): Dropping skb.
[ 1100.432882] blackhole_netdev_xmit(): Dropping skb.