On Sun, 2007-07-08 at 16:22 -0400, Alan Stern wrote:
> On Sun, 8 Jul 2007, Rafael J. Wysocki wrote:
>
> > I'm all for changing this infrastructure, but in an organized way (ie. we
> > discuss what to do next, we do that and then we go to the next step) and in
> > the order that everyone will be comfortable with.
> >
> > So, let's finish this thread and start over from discussing what needs to be
> > done, how (ie. in what order etc.) we are going to do that and who is going to
> > do what. Shall we?
>
> IMO we should start by using the new notifier chain and by implementing
> a central "icebox" routine. Then we can forbid device registration
> during suspend.
>
> It might also be a good idea to add a freezable keventd-like workqueue
> specifically intended for things that need to block during a suspend.
> Although maybe this will end up being unnecessary; it's too soon to
> tell.
I think looking at the kmallo/gfp issue I mentioned earlier should be
done asap. I can try to spare some time for it this week but I can't
promise, I'm actually swamped by something totally unrelated at the
moment.
Another issue that's been a problem forever with suspend is the
synchronous request_firmware interface. Lots of drivers do that in
resume() which will generally not work.
Ben.
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