[    1.911073] ip (250) used greatest stack depth: 12240 bytes left
[   12.169448] ip (990) used greatest stack depth: 12128 bytes left
[   16.332617] mpls_gso: MPLS GSO support
[  676.288379] blackhole_netdev_xmit(): Dropping skb.
[  676.288442] blackhole_netdev_xmit(): Dropping skb.
[  676.288484] blackhole_netdev_xmit(): Dropping skb.
[  676.288522] blackhole_netdev_xmit(): Dropping skb.
[ 1008.121659] blackhole_netdev_xmit(): Dropping skb.
[ 1008.121733] blackhole_netdev_xmit(): Dropping skb.
[ 1008.121770] blackhole_netdev_xmit(): Dropping skb.
[ 1008.121808] blackhole_netdev_xmit(): Dropping skb.