[    1.957132] ip (255) used greatest stack depth: 12352 bytes left
[   52.628908] netem: version 1.3
[  391.873394] ip (5870) used greatest stack depth: 12200 bytes left
[  515.999044] ip (9034) used greatest stack depth: 12040 bytes left
[  608.041488] tc (11932) used greatest stack depth: 11936 bytes left