[    1.493676] ip (254) used greatest stack depth: 12168 bytes left
[    1.542947] ip (259) used greatest stack depth: 12120 bytes left
[   50.465999] netem: version 1.3
[   83.417791] ip (3587) used greatest stack depth: 11944 bytes left
[  559.349810] tc (16940) used greatest stack depth: 11888 bytes left
[  616.620456] pm_nl_ctl (20240) used greatest stack depth: 11832 bytes left