[    2.499200] ip (287) used greatest stack depth: 12344 bytes left
[   31.588612] ip (1386) used greatest stack depth: 12192 bytes left
[   56.877866] netem: version 1.3
[  630.924097] tc (13805) used greatest stack depth: 11936 bytes left
[  696.741602] pm_nl_ctl (16879) used greatest stack depth: 11608 bytes left