[    1.450778] ip (254) used greatest stack depth: 12168 bytes left
[    1.497506] ip (259) used greatest stack depth: 12120 bytes left
[   48.947203] netem: version 1.3
[   55.522530] ip (3258) used greatest stack depth: 11960 bytes left
[  540.177227] tc (16939) used greatest stack depth: 11888 bytes left
[  596.293805] pm_nl_ctl (20241) used greatest stack depth: 11848 bytes left