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

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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