[    2.610504] ip (281) used greatest stack depth: 12360 bytes left
[    2.660180] ip (285) used greatest stack depth: 12344 bytes left
[   15.616577] mpls_gso: MPLS GSO support
[  823.244078] blackhole_netdev_xmit(): Dropping skb.
[  823.244165] blackhole_netdev_xmit(): Dropping skb.
[  823.244221] blackhole_netdev_xmit(): Dropping skb.
[  823.244285] blackhole_netdev_xmit(): Dropping skb.
[ 1218.993016] blackhole_netdev_xmit(): Dropping skb.
[ 1218.993083] blackhole_netdev_xmit(): Dropping skb.
[ 1218.993113] blackhole_netdev_xmit(): Dropping skb.
[ 1218.993145] blackhole_netdev_xmit(): Dropping skb.