[ 2.075223] ip (246) used greatest stack depth: 12288 bytes left [ 2.674159] ip (280) used greatest stack depth: 12272 bytes left [ 16.150672] mpls_gso: MPLS GSO support [ 967.733219] blackhole_netdev_xmit(): Dropping skb. [ 967.733282] blackhole_netdev_xmit(): Dropping skb. [ 967.733322] blackhole_netdev_xmit(): Dropping skb. [ 967.733364] blackhole_netdev_xmit(): Dropping skb. [ 1200.904559] blackhole_netdev_xmit(): Dropping skb. [ 1200.904632] blackhole_netdev_xmit(): Dropping skb. [ 1200.904672] blackhole_netdev_xmit(): Dropping skb. [ 1200.904710] blackhole_netdev_xmit(): Dropping skb.