linux-kernel - Re: 3.5-rcX: wakeup after s2ram doesn't work after a longer sleep time

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Date:	Mon, 16 Jul 2012 19:47:55 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Toralf Förster <toralf.foerster@....de>
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: 3.5-rcX: wakeup after s2ram doesn't work after a longer sleep time

On Monday, July 16, 2012, Toralf Förster wrote:
> On 07/15/2012 10:21 PM, Rafael J. Wysocki wrote:
> > On Sunday, July 15, 2012, Toralf Förster wrote:
> >> My ThinkPad T400 (Gentoo Linux booted from an external USB drive) does
> >> not wake up after s2ram, if the  sleep time was longer than about 1 hour.
> >> I'm unsure whether this started after 3.5-rc5, at least with -rc7 I
> >> observed this now several times. Unfortunately it is not 100% reproduceable.
> >>
> >> 3.4.x works flawlessly.
> >>
> >> Any idea whether a particular commit could be the culprit ? (Bisecting
> >> such an issue is a night mare)
> > 
> > Please check
> > 
> > commit 5baefd6d84163443215f4a99f6a20f054ef11236
> > Author: John Stultz <johnstul@...ibm.com>
> > Date:   Tue Jul 10 18:43:25 2012 -0400
> > 
> >     hrtimer: Update hrtimer base offsets each hrtimer_interrupt
> > 
> > Thanks,
> > Rafael
> > 
> 
> No,
> reverting doesn#t help.
> 
> I can r2ram several times in a row w/o problems, if the sleep time as
> within seconds.
> After 20 min however the system doesn't came back (the internal hard
> disk spins up, but the sleep-state-led is still on).

Well, so this is a different issue definitely.

Thanks,
Rafael
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