[    2.196258] ip (254) used greatest stack depth: 12392 bytes left
[    2.555928] ip (277) used greatest stack depth: 12344 bytes left
[   60.542892] netem: version 1.3
[  499.869582] ip (9699) used greatest stack depth: 12192 bytes left
[  617.434955] tc (13800) used greatest stack depth: 11936 bytes left