[    2.686865] ip (281) used greatest stack depth: 12360 bytes left
[    6.263144] ip (448) used greatest stack depth: 12344 bytes left
[   16.368101] mpls_gso: MPLS GSO support
[   17.252053] ip (1401) used greatest stack depth: 12192 bytes left
[  880.908706] blackhole_netdev_xmit(): Dropping skb.
[  880.908787] blackhole_netdev_xmit(): Dropping skb.
[  880.908833] blackhole_netdev_xmit(): Dropping skb.
[  880.908876] blackhole_netdev_xmit(): Dropping skb.
[ 1154.937493] blackhole_netdev_xmit(): Dropping skb.
[ 1154.937578] blackhole_netdev_xmit(): Dropping skb.
[ 1154.937627] blackhole_netdev_xmit(): Dropping skb.
[ 1154.937678] blackhole_netdev_xmit(): Dropping skb.