[   20.441077] ip (1299) used greatest stack depth: 12288 bytes left
[   60.589022] netem: version 1.3
[  607.208878] ip (14924) used greatest stack depth: 12064 bytes left
[  624.760919] tc (15594) used greatest stack depth: 11936 bytes left
[  687.201935] pm_nl_ctl (18734) used greatest stack depth: 11832 bytes left