[    2.236494] ip (274) used greatest stack depth: 12528 bytes left
[    2.318001] ip (280) used greatest stack depth: 12448 bytes left
[    2.485891] ip (292) used greatest stack depth: 12272 bytes left
[    8.707410] ip (799) used greatest stack depth: 12128 bytes left
[   58.514751] netem: version 1.3
[   68.902575] ip (3015) used greatest stack depth: 12112 bytes left
[  632.637328] tc (15597) used greatest stack depth: 11936 bytes left
[  697.025895] pm_nl_ctl (18732) used greatest stack depth: 11880 bytes left