[    1.578711] ip (259) used greatest stack depth: 12168 bytes left
[   27.868468] ip (1645) used greatest stack depth: 12120 bytes left
[   48.899185] netem: version 1.3
[  579.791986] tc (16946) used greatest stack depth: 11888 bytes left
[  637.412513] pm_nl_ctl (20247) used greatest stack depth: 11848 bytes left