linux-kernel - Re: [PATCH 1/3] thermal: core: Add indication for userspace usage

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Message-ID: <CAAd53p4Z_yH_t5HS4PnPbSAx-PKd85yqhie2mA0VCvJ-yqKD8Q@mail.gmail.com>
Date:   Tue, 15 Dec 2020 20:49:38 +0800
From:   Kai-Heng Feng <kai.heng.feng@...onical.com>
To:     Matthew Garrett <mjg59@...gle.com>
Cc:     "Zhang, Rui" <rui.zhang@...el.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>, amitk@...nel.org,
        Andrzej Pietrasiewicz <andrzej.p@...labora.com>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        "open list:THERMAL" <linux-pm@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/3] thermal: core: Add indication for userspace usage

On Tue, Dec 15, 2020 at 2:22 AM Matthew Garrett <mjg59@...gle.com> wrote:
>
> On Sun, Nov 29, 2020 at 9:36 PM Kai-Heng Feng
> <kai.heng.feng@...onical.com> wrote:
> >
> > We are seeing thermal shutdown on Intel based mobile workstations, the
> > shutdown happens during the first trip handle in
> > thermal_zone_device_register():
> > kernel: thermal thermal_zone15: critical temperature reached (101 C), shutting down
>
> Is the temperature reported by the thermal zone actually correct here?
> 101 C seems extremely excessive.

According to ODM/OEM, it's correct.
It's a short period when Intel Turbo Boost kicks in.

Kai-Heng