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

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Message-ID: <alpine.DEB.2.20.1704121643120.1874@nanos>
Date:   Wed, 12 Apr 2017 16:53:39 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Tommi Rantala <tt.rantala@...il.com>
cc:     Guenter Roeck <linux@...ck-us.net>,
        LKML <linux-kernel@...r.kernel.org>,
        Fenghua Yu <fenghua.yu@...el.com>,
        Jean Delvare <jdelvare@...e.com>, linux-hwmon@...r.kernel.org,
        Sebastian Siewior <bigeasy@...utronix.de>,
        Peter Zijlstra <peterz@...radead.org>, x86@...nel.org
Subject: Re: [patch 0/6] hwmon/coretemp: Hotplug fixes, cleanups and state
 machine conversion

On Wed, 12 Apr 2017, Tommi Rantala wrote:
> 2017-04-12 13:52 GMT+03:00 Thomas Gleixner <tglx@...utronix.de>:
> > Can you please try to offline/online CPUs from the console?
> >
> > # echo 0 >/sys/devices/system/cpu1/online
> > # echo 1 >/sys/devices/system/cpu1/online
> 
> ok, that works.
> 
> > If that works, then try to offline all CPUs (except 0) in the same order as
> > suspend (1 ... 7) and then online them again in the same order?
> 
> Seems to work without problems:

Good.

Can you please try the following:

# for STATE in freezer devices platform processors core; do \
  echo $STATE; \
  echo $STATE >/sys/power/pm_test; \
  echo mem >/sys/power/state

That should give us at least a hint in which area to dig.

Thanks,

	tglx