[    2.467896] ip (281) used greatest stack depth: 12272 bytes left
[   15.990614] mpls_gso: MPLS GSO support
[  638.391964] ip (15603) used greatest stack depth: 12256 bytes left
[  759.884353] blackhole_netdev_xmit(): Dropping skb.
[  759.884412] blackhole_netdev_xmit(): Dropping skb.
[  759.884452] blackhole_netdev_xmit(): Dropping skb.
[  759.884492] blackhole_netdev_xmit(): Dropping skb.
[ 1212.496462] blackhole_netdev_xmit(): Dropping skb.
[ 1212.496546] blackhole_netdev_xmit(): Dropping skb.
[ 1212.496587] blackhole_netdev_xmit(): Dropping skb.
[ 1212.496623] blackhole_netdev_xmit(): Dropping skb.
[ 1240.037441] blackhole_netdev_xmit(): Dropping skb.
[ 1240.037495] blackhole_netdev_xmit(): Dropping skb.
[ 1240.037526] blackhole_netdev_xmit(): Dropping skb.
[ 1240.037554] blackhole_netdev_xmit(): Dropping skb.