[    1.908201] ip (252) used greatest stack depth: 12296 bytes left
[   54.010089] netem: version 1.3
[   64.100957] ip (3018) used greatest stack depth: 12136 bytes left
[  583.550103] tc (15681) used greatest stack depth: 11952 bytes left
[  641.702533] pm_nl_ctl (18825) used greatest stack depth: 11872 bytes left