[    1.678486] ip (256) used greatest stack depth: 12280 bytes left
[    3.042912] ip (408) used greatest stack depth: 12232 bytes left
[   51.850706] netem: version 1.3
[  643.828005] tc (21241) used greatest stack depth: 11912 bytes left
[  700.645634] pm_nl_ctl (24382) used greatest stack depth: 11872 bytes left