linux-kernel - Re: [linux-pm] [PATCH] PM: Make it possible to avoid wakeup events from being lost

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Date:	Sat, 26 Jun 2010 19:43:39 -0700 (PDT)
From:	David Brownell <david-b@...bell.net>
To:	Alan Stern <stern@...land.harvard.edu>
Cc:	linux-pm@...ts.linux-foundation.org,
	"Rafael J. Wysocki" <rjw@...k.pl>, mark gross <640e9920@...il.com>,
	Florian Mickler <florian@...kler.org>,
	Neil Brown <neilb@...e.de>, linux-pci@...r.kernel.org,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Arve@...p1.linux-foundation.org
Subject: Re: [linux-pm] [PATCH] PM: Make it possible to avoid wakeup events from being lost


> > This is a repeat of an issue I posted before, but
> > which for some reason I never saw email back ...
> 
> I replied to one of your emails on this topic.  Maybe you didn't see the reply.

I guess not; I'll see if there's some message
buried in a too-much-email folder.)
> 
> > basically, I think the notion of counting wakeup
> > events seems dubious on common hardware, ...
> I disagree. 
> 
> The "counting" isn't meant as a way of keeping track of the absolute
> number of these events.  It's more like a technique  for seeing how many
> remain outstanding at any time.

But if you can't count them with any
reliability, you can't know *that* either... so
there must be a a problem with that model.


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