[    1.579237] ip (255) used greatest stack depth: 12296 bytes left
[    2.743569] ip (400) used greatest stack depth: 12104 bytes left
[   46.555791] netem: version 1.3
[  630.813959] tc (21307) used greatest stack depth: 11912 bytes left
[  689.309751] pm_nl_ctl (24447) used greatest stack depth: 11872 bytes left