linux-kernel - Re: [linux-pm] [PATCH] Remove process freezer from suspend to RAM pathway

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Message-Id: <200707041717.05149.rjw@sisk.pl>
Date:	Wed, 4 Jul 2007 17:17:04 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Oliver Neukum <oliver@...kum.org>
Cc:	Miklos Szeredi <miklos@...redi.hu>, paulus@...ba.org,
	mjg59@...f.ucam.org, linux-pm@...ts.linux-foundation.org,
	linux-kernel@...r.kernel.org
Subject: Re: [linux-pm] [PATCH] Remove process freezer from suspend to RAM pathway

On Wednesday, 4 July 2007 17:03, Oliver Neukum wrote:
> Am Mittwoch, 4. Juli 2007 schrieb Miklos Szeredi:
> > > > And we won't know if drivers are OK until we remove the freezer,
> > > > catch-22.
> > > 
> > > I disagree.  We can learn that by auditing the drivers.
> > 
> > In theory, yes.  But it scales far worse than letting everyone
> > experiment/report/fix problems as they crop up.
> 
> You will open many but small races. This would be very painfull
> to debug.

Agreed.

They will not trigger 100% of the time, but sporadically and generally at
random.

At least the freezer problems are reproducible. ;-)

Greetings,
Rafael


-- 
"Premature optimization is the root of all evil." - Donald Knuth
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