[    1.889123] ip (292) used greatest stack depth: 12216 bytes left
[    7.471190] ip (946) used greatest stack depth: 12200 bytes left
[   10.266867] mpls_gso: MPLS GSO support
[  734.752492] blackhole_netdev_xmit(): Dropping skb.
[  734.752578] blackhole_netdev_xmit(): Dropping skb.
[  734.752631] blackhole_netdev_xmit(): Dropping skb.
[  734.752677] blackhole_netdev_xmit(): Dropping skb.