[    2.246146] ip (261) used greatest stack depth: 12344 bytes left
[    9.381039] ip (744) used greatest stack depth: 12296 bytes left
[   52.165903] netem: version 1.3
[  540.687859] ip (11283) used greatest stack depth: 12072 bytes left
[  563.933373] tc (11924) used greatest stack depth: 11872 bytes left