[    1.982869] ip (292) used greatest stack depth: 12248 bytes left
[   11.377212] mpls_gso: MPLS GSO support
[  984.298344] blackhole_netdev_xmit(): Dropping skb.
[  984.298460] blackhole_netdev_xmit(): Dropping skb.
[  984.298509] blackhole_netdev_xmit(): Dropping skb.
[  984.298577] blackhole_netdev_xmit(): Dropping skb.
[ 1231.551810] blackhole_netdev_xmit(): Dropping skb.
[ 1231.551926] blackhole_netdev_xmit(): Dropping skb.
[ 1231.551978] blackhole_netdev_xmit(): Dropping skb.
[ 1231.552039] blackhole_netdev_xmit(): Dropping skb.