[    2.552311] ip (279) used greatest stack depth: 12344 bytes left
[   16.212628] mpls_gso: MPLS GSO support
[  636.944148] ip (24238) used greatest stack depth: 12288 bytes left
[  638.725189] ip (24394) used greatest stack depth: 12192 bytes left
[  675.393501] blackhole_netdev_xmit(): Dropping skb.
[  675.393585] blackhole_netdev_xmit(): Dropping skb.
[  675.393642] blackhole_netdev_xmit(): Dropping skb.
[  675.393701] blackhole_netdev_xmit(): Dropping skb.
[  747.001904] blackhole_netdev_xmit(): Dropping skb.
[  747.001976] blackhole_netdev_xmit(): Dropping skb.
[  747.002012] blackhole_netdev_xmit(): Dropping skb.
[  747.002050] blackhole_netdev_xmit(): Dropping skb.
[  951.672447] blackhole_netdev_xmit(): Dropping skb.
[  951.672517] blackhole_netdev_xmit(): Dropping skb.
[  951.672558] blackhole_netdev_xmit(): Dropping skb.
[  951.672595] blackhole_netdev_xmit(): Dropping skb.