[Gumstix-users] cant suspend/hibernate

[TJ <jor...@gm...>]

Hi

I'm trying to put an overo into a low power state but the thing just
wakes up again.  Does anyone know how I can find out what is waking it
up?

I have a water on a gallop43. I was unsuccessful in my attemps to put
the GPS module into a low power state so I cut the track to Vcc of
that module - so thats certainly not waking it up.

This is what I'm getting when I attempt a suspend:

root@overo:~# echo mem > /sys/power/state
[  774.324645] PM: Syncing filesystems ... done.
[  774.336334] Freezing user space processes ... (elapsed 0.02 seconds) done.
[  774.365600] Freezing remaining freezable tasks ... (elapsed 0.02
seconds) done.
[  774.397521] Suspending console(s) (use no_console_suspend to debug)
[  774.521057] PM: suspend of devices complete after 111.291 msecs
[  774.524139] PM: late suspend of devices complete after 3.021 msecs
[  774.524444] Class driver suspend failed for cpu0: -22
[  774.526092] PM: early resume of devices complete after 1.495 msecs
[  775.172210] PM: resume of devices complete after 645.934 msecs
[  775.206817] Restarting tasks ... done.
root@overo:~#

As you can see the suspend lasts for all of about 1.5 seconds. I need
to to sleep for like 5 minutes at a time.

Can anyone help .... please?