[    2.576316] ip (216) used greatest stack depth: 12344 bytes left
[    2.614120] ip (224) used greatest stack depth: 12056 bytes left
[   52.051943] netem: version 1.3
[   70.031350] ip (4647) used greatest stack depth: 12024 bytes left
[  547.997898] pm_nl_ctl (24675) used greatest stack depth: 11856 bytes left