[    9.458332] ip (676) used greatest stack depth: 12360 bytes left
[   18.379770] mpls_gso: MPLS GSO support
[   32.135416] ip (2598) used greatest stack depth: 12320 bytes left
[  813.860341] blackhole_netdev_xmit(): Dropping skb.
[  813.860446] blackhole_netdev_xmit(): Dropping skb.
[  813.860499] blackhole_netdev_xmit(): Dropping skb.
[  813.860551] blackhole_netdev_xmit(): Dropping skb.
[  834.432963] blackhole_netdev_xmit(): Dropping skb.
[  834.433036] blackhole_netdev_xmit(): Dropping skb.
[  834.433100] blackhole_netdev_xmit(): Dropping skb.
[  834.433157] blackhole_netdev_xmit(): Dropping skb.