Has anyone android working with andy-tracking?

Werner Almesberger werner at openmoko.org
Sun Feb 8 08:26:59 CET 2009

Andy Green wrote:
> They're not so scary if they properly default to not impacting suspend
> and resume in the case it's not Android running.

Hmm, but do we (Linux) really want to have an "Android mode" for
the kernel ? I very much doubt even Android would want this sort
of dichotomy.

> I could imagine it's
> quite useful to be able to be sure some complex transaction or event is
> protected against suspend / resume and atomic for it, since otherwise
> it's kind of like FIQ just blasting in there when it feels like it.

It certainly is useful for applications to be able to veto suspend
during critical activities. The question is just whether the kernel
is the right place to implement mechanisms to keep applications out
of each other's hair at such a high level. The suspend operation may
be very low-down but the decisions that lead to it aren't.

In our (Openmoko) case, we have the framework that can take care of
such things. I would expect Android to have some means to coordinate
what its user space does as well.

- Werner

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