Thread (28 messages) 28 messages, 8 authors, 2016-02-16

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

From: linux@roeck-us.net (Guenter Roeck)
Date: 2016-02-16 01:38:12
Also in: linux-next, linux-pm, lkml

On 02/15/2016 01:36 PM, Tony Lindgren wrote:
* Rafael J. Wysocki [off-list ref] [160215 12:39]:
quoted
On Mon, Feb 15, 2016 at 8:58 PM, Tony Lindgren [off-list ref] wrote:
quoted
* Guenter Roeck [off-list ref] [160215 11:41]:
quoted
On 02/15/2016 11:01 AM, Tony Lindgren wrote:
quoted
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 <tony@atomide.com>
Same here.

Tested-by: Guenter Roeck <linux@roeck-us.net>

Guenter
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