[    2.770162] ip (287) used greatest stack depth: 12360 bytes left
[    4.359051] ip (393) used greatest stack depth: 12344 bytes left
[   57.753841] netem: version 1.3
[  416.676464] ip (7498) used greatest stack depth: 12192 bytes left
[  492.413877] ip (8826) used greatest stack depth: 12032 bytes left