From: Pavel Machek <pavel@ucw.cz>
To: Francesco VIRLINZI <francesco.virlinzi@st.com>
Cc: linux-pm@lists.linux-foundation.org
Subject: Re: Need help on Suspend on RAM
Date: Wed, 8 Oct 2008 19:01:08 +0200 [thread overview]
Message-ID: <20081008170108.GA1471@ucw.cz> (raw)
In-Reply-To: <48E1EC46.9090103@st.com>
On Tue 2008-09-30 11:07:18, Francesco VIRLINZI wrote:
> Hi all
> I think I find a fix (?)
> In the file:
> kernel/time/timekeeping.c
> I'm removing the functions:
> - timekeeping_suspend and
> - timekeeping_resume
> I forgot to say that I have no real ClockSource (this means that in
> suspend also the clocksource is suspended...)
Simply commenting this out is probably not the right solution.. could
you find why it breaks your system and talk to tglx?
Pavel
> Regards
> Francesco
>
> Francesco VIRLINZI ha scritto:
> > Hi all
> > I'm working on Suspend on RAM on kernel 2.6.23.17 on a Sh4 based platform.
> > The suspend on RAM seems really working.
> > But it I suspend the board more then 3/4 times than the system doesn't
> > resume the user space
> > but via JTAG I see the kernel is running.
> >
> > I enabled CONFIG_DETECT_SOFTLOCKUP and the kernel prints:
> >
> > |BUG: soft lockup detected on CPU#0|
> >
> > Moreover I installed the patch suggested in http://lwn.net/Articles/287024/
> > and it seems the kernel is running in:
> > - run_timer_softirq
> >
> >
> > and doing some other test I can confirm the kernel is really there...
> >
> > In the board there is no real RTC... All the 'time' is based on the
> > system timer
> > and between suspend/resume the timer is really stopped.
> >
> > Do you have some suggestion?
> >
> > Regards
> > Ciao
> > Francesco
> > _______________________________________________
> > linux-pm mailing list
> > linux-pm@lists.linux-foundation.org
> > https://lists.linux-foundation.org/mailman/listinfo/linux-pm
> >
> >
>
> _______________________________________________
> linux-pm mailing list
> linux-pm@lists.linux-foundation.org
> https://lists.linux-foundation.org/mailman/listinfo/linux-pm
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
prev parent reply other threads:[~2008-10-08 17:01 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-30 7:26 Need help on Suspend on RAM Francesco VIRLINZI
2008-09-30 9:07 ` Francesco VIRLINZI
2008-10-08 17:01 ` Pavel Machek [this message]
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