[    2.307726] ip (295) used greatest stack depth: 12288 bytes left
[   13.616561] mpls_gso: MPLS GSO support
[  640.358570] ip (13990) used greatest stack depth: 12256 bytes left
[  916.911366] blackhole_netdev_xmit(): Dropping skb.
[  916.911432] blackhole_netdev_xmit(): Dropping skb.
[  916.911479] blackhole_netdev_xmit(): Dropping skb.
[  916.911515] blackhole_netdev_xmit(): Dropping skb.
[  992.551284] blackhole_netdev_xmit(): Dropping skb.
[  992.551357] blackhole_netdev_xmit(): Dropping skb.
[  992.551396] blackhole_netdev_xmit(): Dropping skb.
[  992.551434] blackhole_netdev_xmit(): Dropping skb.