[    2.609435] ip (280) used greatest stack depth: 12360 bytes left
[    2.796898] ip (295) used greatest stack depth: 12344 bytes left
[   15.206219] mpls_gso: MPLS GSO support
[  645.446849] ip (21334) used greatest stack depth: 12272 bytes left
[  828.544431] blackhole_netdev_xmit(): Dropping skb.
[  828.544492] blackhole_netdev_xmit(): Dropping skb.
[  828.544535] blackhole_netdev_xmit(): Dropping skb.
[  828.544569] blackhole_netdev_xmit(): Dropping skb.
[  830.699171] blackhole_netdev_xmit(): Dropping skb.
[  830.699225] blackhole_netdev_xmit(): Dropping skb.
[  830.699256] blackhole_netdev_xmit(): Dropping skb.
[  830.699284] blackhole_netdev_xmit(): Dropping skb.