[    1.849505] ip (248) used greatest stack depth: 12336 bytes left
[   49.444248] netem: version 1.3
[   57.796888] ip (2226) used greatest stack depth: 12176 bytes left
[  392.928995] ip (6952) used greatest stack depth: 12064 bytes left
[  566.286395] tc (11914) used greatest stack depth: 11872 bytes left