linux-kernel - Re: 2.6.27-rc6: nohz + s2ram = need to press keys to get progress

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Message-ID: <alpine.LFD.1.10.0809141214110.5283@apollo.tec.linutronix.de>
Date:	Sun, 14 Sep 2008 12:15:04 -0700 (PDT)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Pavel Machek <pavel@...e.cz>
cc:	kernel list <linux-kernel@...r.kernel.org>,
	Linux-pm mailing list <linux-pm@...ts.osdl.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: 2.6.27-rc6: nohz + s2ram = need to press keys to get progress

On Sun, 14 Sep 2008, Pavel Machek wrote:
> On Sun 2008-09-14 10:51:04, Thomas Gleixner wrote:
> > On Sun, 14 Sep 2008, Pavel Machek wrote:
> > > > It _does_ happen with mainline 2.6.27-rc6.
> > > 
> > > s2ram hs problem in mainline 2.6.26, too. (Different problem: no
> > > ammount pressing shift helps there.) nohz=off cures it, too.
> > 
> > Ok, so it's not a regression.
> > 
> > Is the problem in the suspend path or in the resume ?
> 
> During resume, on both 2.6.26 and 2.6.27-rc6. (27-rc6 actually resumes
> if I keep hitting shift, and I get "sleepy" system after that --
> cursor does not blink, but machine can be used -- as long as I keep
> hitting keys).

Hmm. Can you please provide the output of /proc/timer_list when the
system is in that "sleepy" state.

Thanks,

	tglx
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