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From:   "Rafael J. Wysocki" <rafael@kernel.org>
Date:   Mon, 12 Dec 2022 19:34:37 +0100
Message-ID: <CAJZ5v0iJGJ3AU+CLEgA3XTvdb-7xiyKOzzGEEsSO-xc0br_dQw@mail.gmail.com>
Subject: Re: Intermittent boot failure after 6492fed7d8c9 (v6.0-rc1)
To:     Mathieu Chouquet-Stringer <me@mathieu.digital>,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        Mel Gorman <mgorman@techsingularity.net>,
        "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
        linux-rtc@vger.kernel.org, linux-acpi@vger.kernel.org,
        linux-kernel@vger.kernel.org, stable@vger.kernel.org,
        gregkh@linuxfoundation.org
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On Mon, Dec 12, 2022 at 7:25 PM Mathieu Chouquet-Stringer
<me@mathieu.digital> wrote:
>
>         Hello Rafael,
>
> On Tue, Oct 11, 2022 at 10:20:50AM +0100, Mel Gorman wrote:
> > On Mon, Oct 10, 2022 at 08:29:05PM +0200, Rafael J. Wysocki wrote:
> > > > That's less than the previous 5/10 failures but I
> > > > cannot be certain it helped without running a lot more boot tests. The
> > > > failure happens in the same function as before.
> > >
> > > I've overlooked the fact that acpi_install_fixed_event_handler()
> > > enables the event on success, so it is a bug to call it when the
> > > handler is not ready.
> > >
> > > It should help to only enable the event after running cmos_do_probe()
> > > where the driver data pointer is set, so please try the attached
> > > patch.
>
> I'm hitting this issue on the 6.0 stable releases (aka 6.0.y) and
> looking at the stable tree I see this hasn't been merged... I just got
> bitten by this on 6.0.12.
>
> Greg, if Rafael agrees, I think you should apply 4919d3eb2ec0 and
> 0782b66ed2fb to the 6.0.y tree.

This is fine with me, please send an inclusion request to Greg and the
"stable" list.