[    2.107617] ip (279) used greatest stack depth: 12352 bytes left
[    2.192629] ip (288) used greatest stack depth: 12312 bytes left
[   50.474286] netem: version 1.3
[  483.514478] ip (9021) used greatest stack depth: 12232 bytes left
[  576.083790] tc (11912) used greatest stack depth: 11936 bytes left