[    1.847370] ip (255) used greatest stack depth: 12392 bytes left
[    2.266180] ip (287) used greatest stack depth: 12360 bytes left
[    4.944364] ip (509) used greatest stack depth: 12344 bytes left
[   43.120826] ip (1906) used greatest stack depth: 12128 bytes left
[   56.164139] netem: version 1.3
[  689.244056] pm_nl_ctl (16881) used greatest stack depth: 11848 bytes left