From mboxrd@z Thu Jan 1 00:00:00 1970 From: Francesco VIRLINZI Subject: Re: Need help on Suspend on RAM Date: Tue, 30 Sep 2008 11:07:18 +0200 Message-ID: <48E1EC46.9090103@st.com> References: <48E1D492.5040606@st.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <48E1D492.5040606@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 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 > >