[    2.526692] ip (226) used greatest stack depth: 12728 bytes left
[    2.563878] ip (242) used greatest stack depth: 12576 bytes left
[    4.336844] ip (735) used greatest stack depth: 12360 bytes left
[    6.069609] ip (1220) used greatest stack depth: 12040 bytes left
[   51.895841] netem: version 1.3
[  533.226645] pm_nl_ctl (24672) used greatest stack depth: 11856 bytes left