[    2.033816] ip (295) used greatest stack depth: 12272 bytes left
[    3.925474] ip (499) used greatest stack depth: 12240 bytes left
[    6.865499] ip (775) used greatest stack depth: 12128 bytes left
[   53.026058] netem: version 1.3
[  550.195153] tc (15679) used greatest stack depth: 11936 bytes left
[  608.202087] pm_nl_ctl (18824) used greatest stack depth: 11784 bytes left