[    2.254263] ip (199) used greatest stack depth: 12496 bytes left
[    2.352338] ip (226) used greatest stack depth: 12480 bytes left
[   31.176424] ip (2739) used greatest stack depth: 12472 bytes left
[   59.656216] ip (4997) used greatest stack depth: 12040 bytes left
[  549.130204] pm_nl_ctl (27756) used greatest stack depth: 11912 bytes left