[    2.106111] ip (256) used greatest stack depth: 12304 bytes left
[    2.508839] ip (278) used greatest stack depth: 12272 bytes left
[   60.894945] netem: version 1.3
[  109.367855] ip (3482) used greatest stack depth: 12056 bytes left
[  626.694754] tc (15595) used greatest stack depth: 11896 bytes left