[    1.829084] ip (259) used greatest stack depth: 12280 bytes left
[    2.362566] ip (293) used greatest stack depth: 12248 bytes left
[   14.169401] mpls_gso: MPLS GSO support
[ 1237.742980] blackhole_netdev_xmit(): Dropping skb.
[ 1237.743048] blackhole_netdev_xmit(): Dropping skb.
[ 1237.743102] blackhole_netdev_xmit(): Dropping skb.
[ 1237.743142] blackhole_netdev_xmit(): Dropping skb.