[    2.647851] ip (280) used greatest stack depth: 12360 bytes left
[    2.867296] ip (294) used greatest stack depth: 12344 bytes left
[   13.590278] ip (1148) used greatest stack depth: 12328 bytes left
[   15.688528] mpls_gso: MPLS GSO support
[  648.894090] ip (21239) used greatest stack depth: 12304 bytes left
[  759.759305] blackhole_netdev_xmit(): Dropping skb.
[  759.759391] blackhole_netdev_xmit(): Dropping skb.
[  759.759434] blackhole_netdev_xmit(): Dropping skb.
[  759.759475] blackhole_netdev_xmit(): Dropping skb.
[  984.378293] blackhole_netdev_xmit(): Dropping skb.
[  984.378346] blackhole_netdev_xmit(): Dropping skb.
[  984.378378] blackhole_netdev_xmit(): Dropping skb.
[  984.378406] blackhole_netdev_xmit(): Dropping skb.