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

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Date:   Thu, 4 May 2017 18:39:32 +0300
From:   Tommi Rantala <tt.rantala@...il.com>
To:     Thomas Gleixner <tglx@...utronix.de>
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

2017-04-23 18:01 GMT+03:00 Thomas Gleixner <tglx@...utronix.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?

http://termbin.com/qugr

-Tommi