[    1.587737] ip (253) used greatest stack depth: 12168 bytes left
[    2.959888] ip (428) used greatest stack depth: 11944 bytes left
[   50.658490] netem: version 1.3
[  561.050380] tc (16942) used greatest stack depth: 11896 bytes left
[  617.361598] pm_nl_ctl (20242) used greatest stack depth: 11864 bytes left