[    2.802078] ip (285) used greatest stack depth: 12272 bytes left
[   19.704231] mpls_gso: MPLS GSO support
[  662.248564] ip (23246) used greatest stack depth: 12128 bytes left
[ 1068.366755] blackhole_netdev_xmit(): Dropping skb.
[ 1068.366844] blackhole_netdev_xmit(): Dropping skb.
[ 1068.366888] blackhole_netdev_xmit(): Dropping skb.
[ 1068.366923] blackhole_netdev_xmit(): Dropping skb.