[    2.025424] ip (254) used greatest stack depth: 12240 bytes left
[   11.656317] ip (994) used greatest stack depth: 12128 bytes left
[   15.640685] mpls_gso: MPLS GSO support
[ 1068.541032] blackhole_netdev_xmit(): Dropping skb.
[ 1068.541114] blackhole_netdev_xmit(): Dropping skb.
[ 1068.541155] blackhole_netdev_xmit(): Dropping skb.
[ 1068.541191] blackhole_netdev_xmit(): Dropping skb.