[    1.658765] ip (267) used greatest stack depth: 12688 bytes left
[    1.680868] ip (270) used greatest stack depth: 12608 bytes left
[    1.792174] ip (286) used greatest stack depth: 12000 bytes left
[   47.653179] netem: version 1.3
[  576.896435] tc (15679) used greatest stack depth: 11936 bytes left
[  634.200793] pm_nl_ctl (18824) used greatest stack depth: 11880 bytes left