[    2.686383] ip (280) used greatest stack depth: 12272 bytes left
[   10.320916] ip (776) used greatest stack depth: 12256 bytes left
[   18.067359] mpls_gso: MPLS GSO support
[  692.151898] blackhole_netdev_xmit(): Dropping skb.
[  692.151963] blackhole_netdev_xmit(): Dropping skb.
[  692.152010] blackhole_netdev_xmit(): Dropping skb.
[  692.152047] blackhole_netdev_xmit(): Dropping skb.
[ 1137.851112] blackhole_netdev_xmit(): Dropping skb.
[ 1137.851191] blackhole_netdev_xmit(): Dropping skb.
[ 1137.851230] blackhole_netdev_xmit(): Dropping skb.
[ 1137.851266] blackhole_netdev_xmit(): Dropping skb.