Re: pcmcia resume 60 second hang. Re: [patch 00/69] -stable review

[Pavel Machek <pavel@ucw.cz>]

Hi!
> 
> On Fri, 25 May 2007, Pavel Machek wrote:
> > > 
> > > Equally arguably, we should just have a "resume_late()" call that can be 
> > > used to do this after everything is up and running.
> > 
> > Yes, we can do that. But userland will see devices "not there" for a
> > few seconds after boot.
> 
> No they won't.
> 
> Why the HELL cannot you realize that kernel threads are different?
> 
> The right thing to do is AND HAS ALWAYS BEEN, to stop and start user 
> threads only around the whole thing.
> 
> Don't touch those kernel threads. Stop freezing them.
> 
> Then, what you do is:
>  - stop user space
>  - suspend
>  - resume
~~~~~~~~~~~
notice how resume of pcmcia card that poor user has needs
userspace. So this does not work.

>  - start user space

My proposed solution is "fix pcmcia to load firmware before suspend
even starts"

- HERE
>  - stop user space
>  - suspend
>  - resume
>  - start user space

Maybe freezer causes cancer in small children, but lets not blame it
for this.
								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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