[    2.045748] ip (251) used greatest stack depth: 12376 bytes left
[    2.574687] ip (282) used greatest stack depth: 12360 bytes left
[    2.766390] ip (296) used greatest stack depth: 12344 bytes left
[   14.971515] mpls_gso: MPLS GSO support
[ 1036.411028] blackhole_netdev_xmit(): Dropping skb.
[ 1036.411108] blackhole_netdev_xmit(): Dropping skb.
[ 1036.411154] blackhole_netdev_xmit(): Dropping skb.
[ 1036.411191] blackhole_netdev_xmit(): Dropping skb.
[ 1139.139777] blackhole_netdev_xmit(): Dropping skb.
[ 1139.139843] blackhole_netdev_xmit(): Dropping skb.
[ 1139.139873] blackhole_netdev_xmit(): Dropping skb.
[ 1139.139911] blackhole_netdev_xmit(): Dropping skb.