Re: Need help on Suspend on RAM

Pavel Machek
2008-10-08T17:01:08Z

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
> > _______________________________________________
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> > linux-pm@lists.linux-foundation.org
> > https://lists.linux-foundation.org/mailman/listinfo/linux-pm
> >
> >
>
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