Re: suspending to disk on FC6 not working

Pallipadi, Venkatesh
2006-09-29T22:55:31Z

>-----Original Message-----
>From: Dave Jones [mailto:davej@redhat.com]
>Sent: Friday, September 29, 2006 3:26 PM
>To: Pallipadi, Venkatesh
>Cc: Louis Garcia; Pavel Machek; linux-pm@lists.osdl.org
>Subject: Re: [linux-pm] suspending to disk on FC6 not working
>
>On Fri, Sep 29, 2006 at 02:35:43PM -0700, Pallipadi, Venkatesh wrote:
>
> > cpufreq_cpu_data[] = NULL; only happens when acpi_cpufreq
>driver init
> > fails;
> > Looks like acpi_cpufreq driver init is failing at some point in this
> > case and the driver is staying loaded after that failure.
>That in turn
> > seems similar to one other bug I saw recently.
>
>Ah, that was because it was marked CPUFREQ_STICKY in 2.6.18.
>That was added to work around another problem : If it was
>built modular,
>a modprobe acpi-cpufreq would be really noisy when it get an -ENODEV
>

That's it.. This issue seems to be a side effect of that patch...

Louis: After normal boot of 2.6.18, if you are not seeing the directory
/sys/devices/system/cpu/cpu0/cpufreq

Then try reverting this patch
http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=c
ommit;h=911cb74bb9e77e40749abc2fca6fe74d87d940f3

and then check whether the suspend resume issue goes away.

Thanks,
Venki