[    1.681584] ip (253) used greatest stack depth: 12168 bytes left
[   50.937519] netem: version 1.3
[   61.238135] ip (3259) used greatest stack depth: 12152 bytes left
[  576.003803] tc (16941) used greatest stack depth: 11888 bytes left
[  633.550915] pm_nl_ctl (20241) used greatest stack depth: 11848 bytes left