[    1.617655] ip (258) used greatest stack depth: 12280 bytes left
[    1.977894] ip (292) used greatest stack depth: 12248 bytes left
[   12.973165] mpls_gso: MPLS GSO support
[ 1231.748921] blackhole_netdev_xmit(): Dropping skb.
[ 1231.748979] blackhole_netdev_xmit(): Dropping skb.
[ 1231.749020] blackhole_netdev_xmit(): Dropping skb.
[ 1231.749052] blackhole_netdev_xmit(): Dropping skb.