[    1.884077] ip (294) used greatest stack depth: 12248 bytes left
[   51.618765] netem: version 1.3
[  335.983006] ip (7014) used greatest stack depth: 12232 bytes left
[  560.573949] tc (15679) used greatest stack depth: 11912 bytes left
[  619.553069] pm_nl_ctl (18824) used greatest stack depth: 11872 bytes left