[    2.156909] ip (258) used greatest stack depth: 12320 bytes left
[    2.608523] ip (289) used greatest stack depth: 12272 bytes left
[   66.074369] netem: version 1.3
[  633.097103] tc (15593) used greatest stack depth: 11936 bytes left
[  698.129462] pm_nl_ctl (18731) used greatest stack depth: 11872 bytes left