[    1.994093] ip (248) used greatest stack depth: 12328 bytes left
[   10.339560] ip (791) used greatest stack depth: 12304 bytes left
[   16.264870] mpls_gso: MPLS GSO support
[  637.599363] ip (20578) used greatest stack depth: 12288 bytes left
[  977.235858] blackhole_netdev_xmit(): Dropping skb.
[  977.235934] blackhole_netdev_xmit(): Dropping skb.
[  977.235972] blackhole_netdev_xmit(): Dropping skb.
[  977.236014] blackhole_netdev_xmit(): Dropping skb.
[ 1042.073453] blackhole_netdev_xmit(): Dropping skb.
[ 1042.073554] blackhole_netdev_xmit(): Dropping skb.
[ 1042.073615] blackhole_netdev_xmit(): Dropping skb.
[ 1042.073667] blackhole_netdev_xmit(): Dropping skb.
[ 1127.935931] blackhole_netdev_xmit(): Dropping skb.
[ 1127.936003] blackhole_netdev_xmit(): Dropping skb.
[ 1127.936054] blackhole_netdev_xmit(): Dropping skb.
[ 1127.936109] blackhole_netdev_xmit(): Dropping skb.