[    1.935559] ip (246) used greatest stack depth: 12376 bytes left
[    2.514897] ip (280) used greatest stack depth: 12344 bytes left
[    2.720342] ip (295) used greatest stack depth: 12064 bytes left
[   14.887941] mpls_gso: MPLS GSO support
[  723.653225] blackhole_netdev_xmit(): Dropping skb.
[  723.653313] blackhole_netdev_xmit(): Dropping skb.
[  723.653367] blackhole_netdev_xmit(): Dropping skb.
[  723.653427] blackhole_netdev_xmit(): Dropping skb.
[ 1130.598807] blackhole_netdev_xmit(): Dropping skb.
[ 1130.598875] blackhole_netdev_xmit(): Dropping skb.
[ 1130.598910] blackhole_netdev_xmit(): Dropping skb.
[ 1130.598945] blackhole_netdev_xmit(): Dropping skb.