[    2.586328] ip (228) used greatest stack depth: 12080 bytes left
[   52.496829] netem: version 1.3
[   69.163690] ip (4643) used greatest stack depth: 12040 bytes left
[  114.151139] ip (5217) used greatest stack depth: 12024 bytes left
[  540.885120] pm_nl_ctl (24682) used greatest stack depth: 11856 bytes left