[    2.024776] ip (252) used greatest stack depth: 12328 bytes left
[   16.115799] mpls_gso: MPLS GSO support
[  648.315745] ip (28028) used greatest stack depth: 12192 bytes left
[ 1095.513145] blackhole_netdev_xmit(): Dropping skb.
[ 1095.513230] blackhole_netdev_xmit(): Dropping skb.
[ 1095.513276] blackhole_netdev_xmit(): Dropping skb.
[ 1095.513321] blackhole_netdev_xmit(): Dropping skb.
[ 1123.067947] blackhole_netdev_xmit(): Dropping skb.
[ 1123.068014] blackhole_netdev_xmit(): Dropping skb.
[ 1123.068048] blackhole_netdev_xmit(): Dropping skb.
[ 1123.068092] blackhole_netdev_xmit(): Dropping skb.
[ 1221.028322] blackhole_netdev_xmit(): Dropping skb.
[ 1221.028385] blackhole_netdev_xmit(): Dropping skb.
[ 1221.028420] blackhole_netdev_xmit(): Dropping skb.
[ 1221.028456] blackhole_netdev_xmit(): Dropping skb.