[    2.500055] ip (216) used greatest stack depth: 12312 bytes left
[    2.576250] ip (238) used greatest stack depth: 12304 bytes left
[    2.598539] ip (247) used greatest stack depth: 12080 bytes left
[    6.218352] ip (1212) used greatest stack depth: 12040 bytes left
[   52.309184] netem: version 1.3
[  552.504739] pm_nl_ctl (24672) used greatest stack depth: 11856 bytes left