[    1.647001] ip (257) used greatest stack depth: 12168 bytes left
[   51.851464] netem: version 1.3
[   58.643039] ip (3240) used greatest stack depth: 11976 bytes left
[  552.236574] tc (16940) used greatest stack depth: 11896 bytes left
[  609.502418] pm_nl_ctl (20242) used greatest stack depth: 11864 bytes left