[    2.524070] ip (290) used greatest stack depth: 12384 bytes left
[   10.911717] ip (986) used greatest stack depth: 12256 bytes left
[   14.930255] mpls_gso: MPLS GSO support
[  929.210318] blackhole_netdev_xmit(): Dropping skb.
[  929.210386] blackhole_netdev_xmit(): Dropping skb.
[  929.210418] blackhole_netdev_xmit(): Dropping skb.
[  929.210451] blackhole_netdev_xmit(): Dropping skb.