[    1.753783] ip (255) used greatest stack depth: 12224 bytes left
[   50.155288] netem: version 1.3
[   83.600784] ip (3639) used greatest stack depth: 12176 bytes left
[  548.765988] tc (16521) used greatest stack depth: 11920 bytes left
[  606.507163] pm_nl_ctl (19770) used greatest stack depth: 11872 bytes left