Subject: Re: Crashes in arm qemu emulations due to 'cpufreq: governor: Replace timers with utilization ...'

From: Tony Lindgren <[email-masked]>
Date: Mon, 15 Feb 2016 13:36:07 -0800

* Rafael J. Wysocki <[email-masked]> [160215 12:39]:
> On Mon, Feb 15, 2016 at 8:58 PM, Tony Lindgren <[email-masked]> wrote:
> > * Guenter Roeck <[email-masked]> [160215 11:41]:
> >> On 02/15/2016 11:01 AM, Tony Lindgren wrote:
> >> >
> >> >https://kernelci.org/boot/all/job/next/kernel/next-20160215/
> >> >
> >> >The SMP ones seem to fail with some regulator issues?
> >> >
> >>
> >> There is another problem, introduced with 6a0712f6f199e ("PM / OPP: Add
> >> dev_pm_opp_set_rate()"). The kernelci boot log for next-20160212:omap3-overo-tobi
> >> and others experience that problem.
> >>
> >> Essentially, the code now assumes that a CPU clock always has a voltage
> >> regulator attached to it, which is not correct. I sent out a patch to fix
> >> that problem a minute ago.
> >
> > Yes that fixed it thanks.
> 
> Can you please also check if this alternative fix from Viresh works:
> 
> https://patchwork.kernel.org/patch/8316611/

Yes that one too seems to fix the issue on SMP systems for
me:

Tested-by: Tony Lindgren <[email-masked]>

Regards,

Tony