Re: [PATCH] cpufreq: longhaul: Set transition_delay_us to 20 ms

From: Rafael J. Wysocki
Date: Thu Dec 07 2017 - 07:55:27 EST


On Thursday, December 7, 2017 1:51:04 PM CET Meelis Roos wrote:
> > On 06-12-17, 20:21, Meelis Roos wrote:
> > > 30000 was not reliable.
> > >
> > > I created root cron job
> > > @reboot sleep 120; /sbin/reboot
> > >
> > > and by the evening it was dead again.
> > >
> > > Will try 50000 tomorrow.
> >
> > Lets make it similar to what it was before my original patch modified
> > it, to avoid all corner cases.
> >
> > Please test against 200 ms, 200000 value here.
>
> I tried
>
> policy->transition_delay_us = 200000;
>
> and it still hangs on top of mainline.
>
> What next?

Well, please try to revert the commit you bisected the problem to and see
if that doesn't hang.