[    1.998321] ip (245) used greatest stack depth: 12376 bytes left
[    2.719487] ip (279) used greatest stack depth: 12344 bytes left
[   15.998945] mpls_gso: MPLS GSO support
[  641.020158] ip (18418) used greatest stack depth: 12192 bytes left
[  751.463909] blackhole_netdev_xmit(): Dropping skb.
[  751.463980] blackhole_netdev_xmit(): Dropping skb.
[  751.464011] blackhole_netdev_xmit(): Dropping skb.
[  751.464048] blackhole_netdev_xmit(): Dropping skb.
[  778.495431] blackhole_netdev_xmit(): Dropping skb.
[  778.495498] blackhole_netdev_xmit(): Dropping skb.
[  778.495547] blackhole_netdev_xmit(): Dropping skb.
[  778.495601] blackhole_netdev_xmit(): Dropping skb.