[    2.659811] ip (277) used greatest stack depth: 12360 bytes left
[    2.790885] ip (286) used greatest stack depth: 12344 bytes left
[   60.028354] netem: version 1.3
[   67.849237] ip (2360) used greatest stack depth: 12064 bytes left
[  600.281474] tc (12612) used greatest stack depth: 11936 bytes left