[    2.627962] ip (281) used greatest stack depth: 12344 bytes left
[   16.741056] mpls_gso: MPLS GSO support
[   28.985722] ip (2502) used greatest stack depth: 12192 bytes left
[  634.833643] ip (20295) used greatest stack depth: 12064 bytes left
[ 1150.165968] blackhole_netdev_xmit(): Dropping skb.
[ 1150.166037] blackhole_netdev_xmit(): Dropping skb.
[ 1150.166066] blackhole_netdev_xmit(): Dropping skb.
[ 1150.166094] blackhole_netdev_xmit(): Dropping skb.
[ 1190.582884] blackhole_netdev_xmit(): Dropping skb.
[ 1190.582947] blackhole_netdev_xmit(): Dropping skb.
[ 1190.582980] blackhole_netdev_xmit(): Dropping skb.
[ 1190.583014] blackhole_netdev_xmit(): Dropping skb.