[    2.455819] ip (259) used greatest stack depth: 12888 bytes left
[    2.758198] ip (272) used greatest stack depth: 12480 bytes left
[    3.059406] ip (290) used greatest stack depth: 12272 bytes left
[    4.869781] ip (412) used greatest stack depth: 12128 bytes left
[   64.621044] netem: version 1.3
[  631.397727] tc (15598) used greatest stack depth: 11936 bytes left
[  695.469373] pm_nl_ctl (18736) used greatest stack depth: 11880 bytes left