[    1.562050] ip (256) used greatest stack depth: 12224 bytes left
[   47.985133] ip (2823) used greatest stack depth: 12176 bytes left
[   48.375784] netem: version 1.3
[  579.478000] tc (15684) used greatest stack depth: 11928 bytes left
[  636.555201] pm_nl_ctl (18829) used greatest stack depth: 11872 bytes left