[    2.042498] ip (251) used greatest stack depth: 12328 bytes left
[   15.468970] mpls_gso: MPLS GSO support
[  738.659771] blackhole_netdev_xmit(): Dropping skb.
[  738.659847] blackhole_netdev_xmit(): Dropping skb.
[  738.659899] blackhole_netdev_xmit(): Dropping skb.
[  738.659952] blackhole_netdev_xmit(): Dropping skb.
[  881.142303] blackhole_netdev_xmit(): Dropping skb.
[  881.142362] blackhole_netdev_xmit(): Dropping skb.
[  881.142398] blackhole_netdev_xmit(): Dropping skb.
[  881.142438] blackhole_netdev_xmit(): Dropping skb.