[linux-pm] ARM hibernation / suspend-to-disk

[Pavel Machek]

Hi!

> > > > what's the status of suspend-to-disk on ARM? The most recent discussion I
> > > > found is:
> > > > http://lists.linuxfoundation.org/pipermail/linux-pm/2012-November/034997.html
> > > > 
> > > > with no replies at all. Is anyone still working on that? Anyone got it running?
> 
> Hi Pavel, Russ,
> 
> I have been looking and working with Russ' most recent branch based
> on the 3.12 kernel, which includes the big pile of patches for OMAP.
> (https://github.com/russdill/linux/commits/arm-hibernation-am33xx-v3.12)
> 
> He has hibernation mostly working and I have been able to run 1400 or
> so entry/exits overnight there on beaglebone black without issue.
> Combining this with device activity has been tricky.  An active
> network will lose the link on restore.  Active SD traffic will
> eventually hang (Last night ran for about 11 hours before hanging
> after ~350 or so hibernations).  I have not found where this is or
> the cause.

Yeah, but those are driver problems, right? 1400 suspends is very
nice, and it shows that the core is working. That should be enough for
merge; driver problems can be solved later.

Thanks,
									Pavel
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