Re: [patch 0/6] hwmon/coretemp: Hotplug fixes, cleanups and state machine conversion

Thomas Gleixner
2017-05-09T07:17:02Z

On Thu, 4 May 2017, Tommi Rantala wrote:
> 2017-04-23 18:01 GMT+03:00 Thomas Gleixner <tglx@linutronix.de>:
> > On Sat, 15 Apr 2017, Tommi Rantala wrote:
> >
> >> Testing with 4.10.8-200.fc25.x86_64: freezer, devices and platform are
> >> OK, it breaks at "processors".
> >> The screen stays off, and the machine no longer answers to ping.
> >>
> >> (Without coretemp loaded, the machine survives all the states. There
> >> are some graphics glitches and radeon error messages)
> >
> > That's odd. I tried on a similar machine (w/o a radeon card) and it just
> > works with the coretemp module loaded.
> >
> > Can you please do a CPU hotplug cycle (just one CPU) with the cpuhp events
> > in the tracer enabled. Send me the trace output so I might be able to spot
> > whats different and what interdependencies between other callbacks might be
> > there.
>
> Hi,
>
> Here's the trace output, does it help?

Not much. Can you please try the following:

1) Offline all CPUs except CPU0 before suspend/resume

2) Offline all CPUs except CPU0 and CPU1 before suspend/resume

3) Offline all CPUs except CPU0 and CPU2 before suspend/resume

Thanks,

tglx