[    1.975245] ip (258) used greatest stack depth: 12304 bytes left
[    2.291742] ip (280) used greatest stack depth: 12272 bytes left
[    6.863416] ip (670) used greatest stack depth: 12248 bytes left
[   58.572056] netem: version 1.3
[  637.524020] tc (15681) used greatest stack depth: 11936 bytes left
[  703.195256] pm_nl_ctl (18828) used greatest stack depth: 11880 bytes left