[    1.499425] ip (255) used greatest stack depth: 12168 bytes left
[   64.983442] netem: version 1.3
[  504.188015] ip (12882) used greatest stack depth: 12120 bytes left
[  579.974543] tc (16942) used greatest stack depth: 11896 bytes left
[  637.228266] pm_nl_ctl (20242) used greatest stack depth: 11784 bytes left