[    1.746218] ip (256) used greatest stack depth: 12392 bytes left
[    2.125417] ip (288) used greatest stack depth: 12344 bytes left
[   53.396369] netem: version 1.3
[  521.982839] ip (11709) used greatest stack depth: 12240 bytes left
[  557.998911] tc (12619) used greatest stack depth: 11936 bytes left