[    1.883902] ip (258) used greatest stack depth: 12344 bytes left
[    2.250397] ip (289) used greatest stack depth: 12192 bytes left
[    3.397773] ip (402) used greatest stack depth: 12064 bytes left
[   54.391482] netem: version 1.3
[  672.974038] pm_nl_ctl (18733) used greatest stack depth: 11872 bytes left