[    1.771639] ip (251) used greatest stack depth: 12368 bytes left
[    2.035500] ip (272) used greatest stack depth: 12320 bytes left
[   52.937031] netem: version 1.3
[  230.568169] ip (3891) used greatest stack depth: 12272 bytes left
[  461.173608] ip (7818) used greatest stack depth: 12160 bytes left
[  588.116669] tc (11945) used greatest stack depth: 11872 bytes left