Re: Need help on Suspend on RAM

Francesco VIRLINZI
2008-09-30T09:07:18Z

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...)

Could it be a fix or there is an other solution?
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
>
>