[    1.708833] ip (276) used greatest stack depth: 12568 bytes left
[    1.842927] ip (294) used greatest stack depth: 12232 bytes left
[   45.945238] netem: version 1.3
[  628.024708] tc (21125) used greatest stack depth: 11952 bytes left
[  686.936989] pm_nl_ctl (24266) used greatest stack depth: 11872 bytes left