linux-kernel - Re: [PATCH][RESEND] Revert "PM: ACPI: reboot: Use S5 for reboot"

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Date:   Sat, 20 Mar 2021 00:23:20 +0800
From:   Kai-Heng Feng <kai.heng.feng@...onical.com>
To:     Josef Bacik <josef@...icpanda.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        "kernel-team@...com" <kernel-team@...com>
Subject: Re: [PATCH][RESEND] Revert "PM: ACPI: reboot: Use S5 for reboot"

On Fri, Mar 19, 2021 at 3:02 AM Josef Bacik <josef@...icpanda.com> wrote:
>
> On 3/18/21 1:42 AM, Kai-Heng Feng wrote:
> > On Thu, Mar 18, 2021 at 1:25 AM Josef Bacik <josef@...icpanda.com> wrote:
> > [snipped]
> >> "shutdown now" works fine with and without your patch.  Thanks,
> >
> > Rafael,
> > Please revert the patch while we are working on it.
> >
> > Josef,
> > Can you please test the following patch:
> >
>
> That made it work fine.  Thanks,

So there are things depend on reboot or shutdown to carry out
different behaviors.
Can you please find whether there is any code path uses SYSTEM_RESTART
or SYSTEM_POWER_OFF that leads to different behavior? Most likely
happen in a driver's .shutdown callback.

Kai-Heng

>
> Josef