[    2.497976] ip (281) used greatest stack depth: 12344 bytes left
[   16.457138] mpls_gso: MPLS GSO support
[  636.379551] ip (24510) used greatest stack depth: 12328 bytes left
[  754.549904] blackhole_netdev_xmit(): Dropping skb.
[  754.549966] blackhole_netdev_xmit(): Dropping skb.
[  754.549998] blackhole_netdev_xmit(): Dropping skb.
[  754.550030] blackhole_netdev_xmit(): Dropping skb.
[ 1167.857525] blackhole_netdev_xmit(): Dropping skb.
[ 1167.857587] blackhole_netdev_xmit(): Dropping skb.
[ 1167.857618] blackhole_netdev_xmit(): Dropping skb.
[ 1167.857650] blackhole_netdev_xmit(): Dropping skb.