[    1.809273] ip (254) used greatest stack depth: 12824 bytes left
[    1.832586] ip (257) used greatest stack depth: 12504 bytes left
[    1.960750] ip (267) used greatest stack depth: 12104 bytes left
[   52.143474] netem: version 1.3
[  568.562379] tc (15679) used greatest stack depth: 11928 bytes left
[  627.674136] pm_nl_ctl (18825) used greatest stack depth: 11872 bytes left