[    1.640273] ip (268) used greatest stack depth: 12344 bytes left
[    1.712612] ip (277) used greatest stack depth: 12328 bytes left
[    1.857011] ip (295) used greatest stack depth: 12168 bytes left
[   79.962588] netem: version 1.3
[  622.609421] tc (24873) used greatest stack depth: 11864 bytes left