[    2.398985] ip (279) used greatest stack depth: 12360 bytes left
[    5.480629] ip (449) used greatest stack depth: 12344 bytes left
[    7.526599] ip (667) used greatest stack depth: 12304 bytes left
[    9.245898] ip (817) used greatest stack depth: 12288 bytes left
[   15.068213] mpls_gso: MPLS GSO support
[  957.818295] ip (18541) used greatest stack depth: 12192 bytes left
[ 1036.113545] blackhole_netdev_xmit(): Dropping skb.
[ 1036.113613] blackhole_netdev_xmit(): Dropping skb.
[ 1036.113647] blackhole_netdev_xmit(): Dropping skb.
[ 1036.113685] blackhole_netdev_xmit(): Dropping skb.
[ 1039.948202] blackhole_netdev_xmit(): Dropping skb.
[ 1039.948265] blackhole_netdev_xmit(): Dropping skb.
[ 1039.948313] blackhole_netdev_xmit(): Dropping skb.
[ 1039.948360] blackhole_netdev_xmit(): Dropping skb.