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

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

From: "Rafael J. Wysocki" <rafael@kernel.org>
Date: 2016-02-15 20:38:29
Also in: linux-arm-kernel, linux-pm, lkml

On Mon, Feb 15, 2016 at 9:09 PM, Guenter Roeck [off-list ref] wrote:
On 02/15/2016 11:58 AM, Tony Lindgren 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.
Confirmed. With this patch plus mine, all arm qemu tests are again passing
for me.
OK, I'll add it to the governor changes branch.

Thanks,
Rafael
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