[    1.582298] ip (252) used greatest stack depth: 12168 bytes left
[    1.630253] ip (257) used greatest stack depth: 12120 bytes left
[   51.111352] netem: version 1.3
[  570.997296] tc (16940) used greatest stack depth: 11888 bytes left
[  628.289939] pm_nl_ctl (20241) used greatest stack depth: 11848 bytes left