From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: So, what's the status on the recent patches here? Date: Sun, 3 Sep 2006 23:33:26 +0200 Message-ID: <20060903213325.GB9991@elf.ucw.cz> References: <1ac6c8e2a817eb0e11257b47199872f8@comcast.net> <200609022130.59256.rjw@sisk.pl> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-pm-bounces@lists.osdl.org Errors-To: linux-pm-bounces@lists.osdl.org To: David Singleton Cc: Preece Scott-PREECE , Matthew Locke , linux-pm@lists.osdl.org List-Id: linux-pm@vger.kernel.org > >That depends on the definition, but I think of suspend states as the ones > >that require processes to be frozen before they can be entered. IMHO it= is > >quite clear that such states cannot be handled in the same way as those > >that do not require the freezing of processes, so they are not the same. > = > You are correct, processes do need to be frozen before a suspend. > That's the prepare to suspend part of the suspend process, and > the transtition is the suspending and finish is the un-freezing > of the processes to resume execution. > = > And those same steps are the same steps required to transition the > system to a new operating point, whether it's suspend or change > from 1.4GHz to 600MHz. No, processes are not frozen for simple cpu frequency change -- on non-broken cpus. Pavel -- = (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html