[    2.079596] ip (252) used greatest stack depth: 12376 bytes left
[    2.687034] ip (280) used greatest stack depth: 12360 bytes left
[    2.740798] ip (284) used greatest stack depth: 12344 bytes left
[   16.643880] mpls_gso: MPLS GSO support
[  673.278716] blackhole_netdev_xmit(): Dropping skb.
[  673.278795] blackhole_netdev_xmit(): Dropping skb.
[  673.278831] blackhole_netdev_xmit(): Dropping skb.
[  673.278867] blackhole_netdev_xmit(): Dropping skb.
[  962.355811] blackhole_netdev_xmit(): Dropping skb.
[  962.355880] blackhole_netdev_xmit(): Dropping skb.
[  962.355914] blackhole_netdev_xmit(): Dropping skb.
[  962.355946] blackhole_netdev_xmit(): Dropping skb.
[ 1175.114345] blackhole_netdev_xmit(): Dropping skb.
[ 1175.114406] blackhole_netdev_xmit(): Dropping skb.
[ 1175.114437] blackhole_netdev_xmit(): Dropping skb.
[ 1175.114469] blackhole_netdev_xmit(): Dropping skb.