[SRU v2] [G] [PATCH 0/6] Prevent thermal shutdown during boot process

[Paolo Pisati]

On Wed, Jan 27, 2021 at 11:05:11AM +0800, Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1906168
> 
> [Impact]
> Surprising thermal shutdown at boot on Intel based mobile workstations.
> 
> [Fix]
> Since these thermal devcies are not in ACPI ThermalZone, OS shouldn't
> shutdown the system.
> 
> These critial temperatures are for usespace to handle, so let kernel
> know it shouldn't handle it.
> 
> For Groovy, a patch that removes .notify callback is dropped.
> 
> [Test]
> Use reboot stress as a reproducer. 5% chance to see a surprising
> shutdown at boot.
> 
> With the fix applied, the thermal shutdown is no longer reproducible.
> 
> [Where problems could occur]
> For ACPI based platforms, we still have "acpitz" to protect systems from
> overheating. If these acpitz sensors don't work, then the system could
> face real overheating issue.
> 
> Daniel Lezcano (4):
>   thermal/core: Emit a warning if the thermal zone is updated without
>     ops
>   thermal/core: Add critical and hot ops
>   thermal/drivers/acpi: Use hot and critical ops
>   thermal/drivers/rcar: Remove notification usage
> 
> Kai-Heng Feng (2):
>   thermal: int340x: Fix unexpected shutdown at critical temperature
>   thermal: intel: pch: Fix unexpected shutdown at critical temperature

Hi Kai-Heng,

looks like this v2 patchset is identical to v1 but dropped:

commit 2079c0fe7fd0b46bc00e341205aa325bae7406b7
Author: Daniel Lezcano <daniel.lezcano at linaro.org>
Date:   Thu Jan 21 16:49:00 2021 +0800

    thermal/core: Remove notify ops

and in Hirsute (5.10+) we have the v1 applied - shall we keep v1 applied? Or
shall we drop the above patch?
-- 
bye,
p.