[    1.563950] ip (254) used greatest stack depth: 12168 bytes left
[   49.826570] netem: version 1.3
[  107.856538] ip (4054) used greatest stack depth: 12120 bytes left
[  546.992825] tc (16940) used greatest stack depth: 11896 bytes left
[  604.212806] pm_nl_ctl (20241) used greatest stack depth: 11864 bytes left