[    1.878154] ip (249) used greatest stack depth: 12376 bytes left
[    2.420158] ip (281) used greatest stack depth: 12344 bytes left
[   14.978367] mpls_gso: MPLS GSO support
[   24.508085] ip (2536) used greatest stack depth: 12328 bytes left
[  953.032488] ip (23370) used greatest stack depth: 12288 bytes left
[ 1007.477140] blackhole_netdev_xmit(): Dropping skb.
[ 1007.477219] blackhole_netdev_xmit(): Dropping skb.
[ 1007.477262] blackhole_netdev_xmit(): Dropping skb.
[ 1007.477301] blackhole_netdev_xmit(): Dropping skb.