[    2.140418] ip (276) used greatest stack depth: 12360 bytes left
[    2.246909] ip (286) used greatest stack depth: 12344 bytes left
[   38.388940] ip (1459) used greatest stack depth: 12064 bytes left
[   56.350014] netem: version 1.3
[  584.298460] tc (12965) used greatest stack depth: 11936 bytes left