[    2.211977] ip (196) used greatest stack depth: 12544 bytes left
[    2.231400] ip (202) used greatest stack depth: 12520 bytes left
[    2.270514] ip (215) used greatest stack depth: 12480 bytes left
[    2.826921] ip (369) used greatest stack depth: 12008 bytes left
[  586.717576] pm_nl_ctl (26361) used greatest stack depth: 11912 bytes left