[    2.450286] ip (268) used greatest stack depth: 12544 bytes left
[    2.588772] ip (277) used greatest stack depth: 12344 bytes left
[   60.020794] netem: version 1.3
[  108.265233] ip (2766) used greatest stack depth: 12304 bytes left
[  521.412819] ip (10479) used greatest stack depth: 12064 bytes left
[  589.782621] tc (12613) used greatest stack depth: 11936 bytes left