[    1.649501] ip (254) used greatest stack depth: 12296 bytes left
[    4.120373] ip (534) used greatest stack depth: 12248 bytes left
[    6.466475] ip (793) used greatest stack depth: 12104 bytes left
[   50.147995] netem: version 1.3
[  565.477058] tc (15678) used greatest stack depth: 11952 bytes left
[  684.393321] pm_nl_ctl (18827) used greatest stack depth: 11872 bytes left