[ 2.782511] ip (280) used greatest stack depth: 12344 bytes left [ 17.010547] mpls_gso: MPLS GSO support [ 942.844834] blackhole_netdev_xmit(): Dropping skb. [ 942.844895] blackhole_netdev_xmit(): Dropping skb. [ 942.844926] blackhole_netdev_xmit(): Dropping skb. [ 942.844961] blackhole_netdev_xmit(): Dropping skb. [ 1019.210504] blackhole_netdev_xmit(): Dropping skb. [ 1019.210561] blackhole_netdev_xmit(): Dropping skb. [ 1019.210592] blackhole_netdev_xmit(): Dropping skb. [ 1019.210624] blackhole_netdev_xmit(): Dropping skb. [ 1084.719154] blackhole_netdev_xmit(): Dropping skb. [ 1084.719220] blackhole_netdev_xmit(): Dropping skb. [ 1084.719256] blackhole_netdev_xmit(): Dropping skb. [ 1084.719311] blackhole_netdev_xmit(): Dropping skb. [ 1202.468397] blackhole_netdev_xmit(): Dropping skb. [ 1202.468468] blackhole_netdev_xmit(): Dropping skb. [ 1202.468523] blackhole_netdev_xmit(): Dropping skb. [ 1202.468586] blackhole_netdev_xmit(): Dropping skb.