[    1.598632] ip (252) used greatest stack depth: 12248 bytes left
[   50.297716] netem: version 1.3
[  128.731828] ip (3761) used greatest stack depth: 12200 bytes left
[  570.415247] tc (15681) used greatest stack depth: 11928 bytes left
[  628.114675] pm_nl_ctl (18825) used greatest stack depth: 11872 bytes left