[    1.534952] ip (253) used greatest stack depth: 12168 bytes left
[   74.009769] netem: version 1.3
[   82.325198] ip (5574) used greatest stack depth: 11928 bytes left
[  610.336791] tc (24877) used greatest stack depth: 11880 bytes left
[  670.184247] pm_nl_ctl (29006) used greatest stack depth: 11832 bytes left