[    1.912810] ip (294) used greatest stack depth: 12288 bytes left
[   11.366023] mpls_gso: MPLS GSO support
[  652.718902] blackhole_netdev_xmit(): Dropping skb.
[  652.719008] blackhole_netdev_xmit(): Dropping skb.
[  652.719065] blackhole_netdev_xmit(): Dropping skb.
[  652.719127] blackhole_netdev_xmit(): Dropping skb.
[  986.511931] blackhole_netdev_xmit(): Dropping skb.
[  986.511985] blackhole_netdev_xmit(): Dropping skb.
[  986.512023] blackhole_netdev_xmit(): Dropping skb.
[  986.512057] blackhole_netdev_xmit(): Dropping skb.