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From: Francesco VIRLINZI <francesco.virlinzi@st.com>
To: Francesco VIRLINZI <francesco.virlinzi@st.com>
Cc: linux-pm@lists.linux-foundation.org
Subject: Re: Need help on Suspend on RAM
Date: Tue, 30 Sep 2008 11:07:18 +0200	[thread overview]
Message-ID: <48E1EC46.9090103@st.com> (raw)
In-Reply-To: <48E1D492.5040606@st.com>

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
>
>   

  reply	other threads:[~2008-09-30  9:07 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 [this message]
2008-10-08 17:01   ` Pavel Machek

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