[ 2.766183] ip (279) used greatest stack depth: 12344 bytes left [ 16.785492] mpls_gso: MPLS GSO support [ 332.985690] ip (30106) used greatest stack depth: 12288 bytes left [ 922.312580] blackhole_netdev_xmit(): Dropping skb. [ 922.312639] blackhole_netdev_xmit(): Dropping skb. [ 922.312674] blackhole_netdev_xmit(): Dropping skb. [ 922.312706] blackhole_netdev_xmit(): Dropping skb. [ 1150.618255] blackhole_netdev_xmit(): Dropping skb. [ 1150.618321] blackhole_netdev_xmit(): Dropping skb. [ 1150.618352] blackhole_netdev_xmit(): Dropping skb. [ 1150.618378] blackhole_netdev_xmit(): Dropping skb.