[    1.750514] ip (293) used greatest stack depth: 12248 bytes left
[    9.256275] ip (1135) used greatest stack depth: 12104 bytes left
[   10.833057] mpls_gso: MPLS GSO support
[  692.203743] blackhole_netdev_xmit(): Dropping skb.
[  692.203830] blackhole_netdev_xmit(): Dropping skb.
[  692.203875] blackhole_netdev_xmit(): Dropping skb.
[  692.203931] blackhole_netdev_xmit(): Dropping skb.