[    2.839467] ip (282) used greatest stack depth: 12360 bytes left
[    6.470338] ip (445) used greatest stack depth: 12344 bytes left
[    8.878057] ip (657) used greatest stack depth: 12304 bytes left
[   17.159188] mpls_gso: MPLS GSO support
[  655.154058] ip (22760) used greatest stack depth: 12064 bytes left
[  926.267969] blackhole_netdev_xmit(): Dropping skb.
[  926.268030] blackhole_netdev_xmit(): Dropping skb.
[  926.268059] blackhole_netdev_xmit(): Dropping skb.
[  926.268092] blackhole_netdev_xmit(): Dropping skb.