[    2.509495] ip (277) used greatest stack depth: 12352 bytes left
[    2.561008] ip (281) used greatest stack depth: 12336 bytes left
[   12.815670] ip (1075) used greatest stack depth: 12232 bytes left
[  976.510905] blackhole_netdev_xmit(): Dropping skb.
[  976.510972] blackhole_netdev_xmit(): Dropping skb.
[  976.511008] blackhole_netdev_xmit(): Dropping skb.
[  976.511041] blackhole_netdev_xmit(): Dropping skb.
[ 1003.146520] blackhole_netdev_xmit(): Dropping skb.
[ 1003.146588] blackhole_netdev_xmit(): Dropping skb.
[ 1003.146627] blackhole_netdev_xmit(): Dropping skb.
[ 1003.146686] blackhole_netdev_xmit(): Dropping skb.
[ 1012.637953] blackhole_netdev_xmit(): Dropping skb.
[ 1012.638020] blackhole_netdev_xmit(): Dropping skb.
[ 1012.638061] blackhole_netdev_xmit(): Dropping skb.
[ 1012.638101] blackhole_netdev_xmit(): Dropping skb.
[ 1018.833339] blackhole_netdev_xmit(): Dropping skb.
[ 1018.833394] blackhole_netdev_xmit(): Dropping skb.
[ 1018.833430] blackhole_netdev_xmit(): Dropping skb.
[ 1018.833466] blackhole_netdev_xmit(): Dropping skb.
[ 1022.376237] blackhole_netdev_xmit(): Dropping skb.
[ 1022.376288] blackhole_netdev_xmit(): Dropping skb.
[ 1022.376320] blackhole_netdev_xmit(): Dropping skb.
[ 1022.376346] blackhole_netdev_xmit(): Dropping skb.
[ 1027.299132] blackhole_netdev_xmit(): Dropping skb.
[ 1027.299183] blackhole_netdev_xmit(): Dropping skb.
[ 1027.299215] blackhole_netdev_xmit(): Dropping skb.
[ 1027.299249] blackhole_netdev_xmit(): Dropping skb.
[ 1085.776081] blackhole_netdev_xmit(): Dropping skb.
[ 1085.776146] blackhole_netdev_xmit(): Dropping skb.
[ 1085.776178] blackhole_netdev_xmit(): Dropping skb.
[ 1085.776223] blackhole_netdev_xmit(): Dropping skb.
[ 1177.456603] blackhole_netdev_xmit(): Dropping skb.
[ 1177.456667] blackhole_netdev_xmit(): Dropping skb.
[ 1177.456702] blackhole_netdev_xmit(): Dropping skb.
[ 1177.456735] blackhole_netdev_xmit(): Dropping skb.
[ 1206.135840] blackhole_netdev_xmit(): Dropping skb.
[ 1206.135895] blackhole_netdev_xmit(): Dropping skb.
[ 1206.135929] blackhole_netdev_xmit(): Dropping skb.
[ 1206.135962] blackhole_netdev_xmit(): Dropping skb.
[ 1241.129839] blackhole_netdev_xmit(): Dropping skb.
[ 1241.129893] blackhole_netdev_xmit(): Dropping skb.
[ 1241.129925] blackhole_netdev_xmit(): Dropping skb.
[ 1241.129958] blackhole_netdev_xmit(): Dropping skb.