[ 2.573842] ip (282) used greatest stack depth: 12344 bytes left [ 16.990818] mpls_gso: MPLS GSO support [ 333.753660] ip (27180) used greatest stack depth: 12288 bytes left [ 746.855616] blackhole_netdev_xmit(): Dropping skb. [ 746.855690] blackhole_netdev_xmit(): Dropping skb. [ 746.855733] blackhole_netdev_xmit(): Dropping skb. [ 746.855783] blackhole_netdev_xmit(): Dropping skb. [ 813.329743] blackhole_netdev_xmit(): Dropping skb. [ 813.329794] blackhole_netdev_xmit(): Dropping skb. [ 813.329826] blackhole_netdev_xmit(): Dropping skb. [ 813.329860] blackhole_netdev_xmit(): Dropping skb. [ 901.186115] blackhole_netdev_xmit(): Dropping skb. [ 901.186174] blackhole_netdev_xmit(): Dropping skb. [ 901.186209] blackhole_netdev_xmit(): Dropping skb. [ 901.186247] blackhole_netdev_xmit(): Dropping skb. [ 1114.789318] blackhole_netdev_xmit(): Dropping skb. [ 1114.789396] blackhole_netdev_xmit(): Dropping skb. [ 1114.789433] blackhole_netdev_xmit(): Dropping skb. [ 1114.789479] blackhole_netdev_xmit(): Dropping skb.