[    1.672868] ip (254) used greatest stack depth: 12712 bytes left
[    1.724786] ip (259) used greatest stack depth: 12168 bytes left
[   55.864805] netem: version 1.3
[   75.939186] ip (4747) used greatest stack depth: 11944 bytes left
[  595.234882] tc (23659) used greatest stack depth: 11880 bytes left
[  656.405325] pm_nl_ctl (27792) used greatest stack depth: 11800 bytes left