From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: Need help on Suspend on RAM Date: Wed, 8 Oct 2008 19:01:08 +0200 Message-ID: <20081008170108.GA1471@ucw.cz> References: <48E1D492.5040606@st.com> <48E1EC46.9090103@st.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <48E1EC46.9090103@st.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-pm-bounces@lists.linux-foundation.org Errors-To: linux-pm-bounces@lists.linux-foundation.org To: Francesco VIRLINZI Cc: linux-pm@lists.linux-foundation.org List-Id: linux-pm@vger.kernel.org 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