[    2.330412] ip (287) used greatest stack depth: 12360 bytes left
[    2.448218] ip (296) used greatest stack depth: 12344 bytes left
[   53.257892] netem: version 1.3
[   85.989566] ip (2626) used greatest stack depth: 12064 bytes left
[  597.494673] tc (12617) used greatest stack depth: 11936 bytes left