[    3.827284] ip (558) used greatest stack depth: 12040 bytes left
[    6.186841] ip (1198) used greatest stack depth: 11992 bytes left
[   23.627284] ip (1865) used greatest stack depth: 11960 bytes left
[   52.288955] netem: version 1.3
[   59.292016] ip (4459) used greatest stack depth: 11936 bytes left
[  549.628721] pm_nl_ctl (25043) used greatest stack depth: 11864 bytes left