[    1.656153] ip (252) used greatest stack depth: 12296 bytes left
[    1.984352] ip (284) used greatest stack depth: 12248 bytes left
[   51.593067] netem: version 1.3
[  640.644818] tc (20820) used greatest stack depth: 11952 bytes left
[  698.759800] pm_nl_ctl (23961) used greatest stack depth: 11848 bytes left