Re: cpufreq notifiers break suspend -- Re: suspend broken in next-20190704 on Thinkpad X60

From: Viresh Kumar
Date: Tue Jul 09 2019 - 03:26:21 EST


On 08-07-19, 16:13, Pavel Machek wrote:
> On Mon 2019-07-08 14:58:40, Viresh Kumar wrote:
> > Though it makes me wonder why I didn't hit this thing. I was using the
> > cpu_cooling device the other day, which calls cpufreq_update_policy()
> > very frequently on heat-up. And I had a hair dryer blowing over my
> > board to heat it up. Lemme check that again :)
>
> Can you test on some x86 ACPI? No dryers needed :-).
>

Found out why I didn't hit it then. I tested it after converting
cpu_cooling driver to use QoS APIs and there is no double locking with
that.

--
viresh