[    1.568583] ip (259) used greatest stack depth: 12296 bytes left
[    1.892722] ip (297) used greatest stack depth: 12264 bytes left
[   16.287647] ip (1363) used greatest stack depth: 12248 bytes left
[   39.448879] ip (2382) used greatest stack depth: 12184 bytes left
[   50.099440] netem: version 1.3
[  545.481139] tc (16522) used greatest stack depth: 11920 bytes left
[  602.994800] pm_nl_ctl (19770) used greatest stack depth: 11872 bytes left