linux-kernel - Re: power-off delay/hang due to commit 6d25be57 (mainline)

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Message-ID: <87ft8tayic.fsf@gmx.net>
Date:   Tue, 11 Aug 2020 19:22:19 +0200
From:   Stephen Berman <stephen.berman@....net>
To:     Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Zhang Rui <rui.zhang@...el.com>,
        Robert Moore <robert.moore@...el.com>,
        Erik Kaneda <erik.kaneda@...el.com>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Len Brown <lenb@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Peter Zijlstra <peterz@...radead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
        "open list:ACPI COMPONENT ARCHITECTURE (ACPICA)" <devel@...ica.org>
Subject: Re: power-off delay/hang due to commit 6d25be57 (mainline)

On Tue, 11 Aug 2020 17:25:51 +0200 Sebastian Andrzej Siewior <bigeasy@...utronix.de> wrote:

> On 2020-08-11 16:34:09 [+0200], Rafael J. Wysocki wrote:
>> On Tue, Aug 11, 2020 at 3:29 PM Sebastian Andrzej Siewior
>> <bigeasy@...utronix.de> wrote:
>> >
>> > On 2020-08-11 13:58:39 [+0200], Stephen Berman wrote:
>> > > him about your workaround of adding 'thermal.tzp=300' to the kernel
>> > > commandline, and he replied that this works for him too.  And it turns
>> > > out we have similar motherboards: I have a Gigabyte Z390 M Gaming
>> > > Rev. 1001 board and he has Gigabyte Z390 Designare rev 1.0.
>> >
>> > Yes. Based on latest dmesg, the ACPI tables contain code which schedules
>> > the worker and takes so long. It is possible / likely that his board
>> > contains the same tables which leads to the same effect. After all those
>> > two boards are very similar from the naming part :)
>> > Would you mind to dump the ACPI tables and send them? There might be
>> > some hints.

Attached.

>> Do we have a BZ for this?  It would be useful to open one if not.
>
> no, it came via lkml and I looked at it since it was bisected to a
> workqueue commit with my signoff…
> Stephen, can you open a bug on https://bugzilla.kernel.org/?

Done as Bug 208877.

Steve Berman


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