I don't see a behavior change in the current kernels. Select(2) timeouts only count the time the machine is up -- not sleeping... I had a patch for 2.6.20 that I tried (it modified schedule_timeout) -- it didn't do anything useful in 2.6.27-rc5. marty --- On Thu, 9/11/08, Pavel Machek <pavel@xxxxxxx> wrote: > From: Pavel Machek <pavel@xxxxxxx> > Subject: Re: FW: select with timeout across S3 > To: "Leisner, Martin" <Martin.Leisner@xxxxxxxxx> > Cc: linux-kernel@xxxxxxxxxxxxxxx, linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx, martyleisner@xxxxxxxxx > Date: Thursday, September 11, 2008, 5:24 AM > On Thu 2008-09-11 02:17:10, Leisner, Martin wrote: > > Hi, > > > > I finally got 2.6.27-rc5 running...no change in my > test program... > > > > I'm going to look at the patches we're using > for 2.4.20/2.6.20... > > So the bug is still there, or did 2.6.27-rc5 magically > solve the problem? > > > marty > > > > > > -----Original Message----- > > From: Pavel Machek [mailto:pavel@xxxxxxx] > > Sent: Mon 9/1/2008 2:25 AM > > To: Leisner, Martin > > Cc: linux-kernel@xxxxxxxxxxxxxxx; > linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx > > Subject: Re: FW: select with timeout across > S3 > > > > Hi! > > > > > The behavior of linux (in both 2.4.x and 2.6.x) > is when the processor > > > sleeps, timeouts on select don't take into > account the sleep time, > > > only the run time. > > > > > > For example, this program should pause for 10 > minutes -- however > > > if we go into S3 in the middle its pausing for > (10 minutes + time in > > > S3) > > > > > > I saw this on both 2.6.20 and 2.6.22... > > > > Can you test this on 2.6.27-rc? We did have some fixes > in that > > area.... > > > > Pavel > > > > -- > (english) http://www.livejournal.com/~pavelmachek > (cesky, pictures) > http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
