From: "Rafael J. Wysocki" <rafael@kernel.org>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Zhang Rui <rui.zhang@intel.com>,
Robert Moore <robert.moore@intel.com>,
Erik Kaneda <erik.kaneda@intel.com>,
"Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
Len Brown <lenb@kernel.org>, Thomas Gleixner <tglx@linutronix.de>,
Peter Zijlstra <peterz@infradead.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
Stephen Berman <stephen.berman@gmx.net>,
"open list:ACPI COMPONENT ARCHITECTURE (ACPICA)"
<devel@acpica.org>
Subject: Re: power-off delay/hang due to commit 6d25be57 (mainline)
Date: Tue, 14 Jul 2020 15:54:57 +0200 [thread overview]
Message-ID: <CAJZ5v0hZSUkEMCszDADGWk-v0xNEiDE45B3CHLi05BX6rPfm6g@mail.gmail.com> (raw)
In-Reply-To: <20200714134410.3odqfvjq6rndjjf6@linutronix.de>
On Tue, Jul 14, 2020 at 3:44 PM Sebastian Andrzej Siewior
<bigeasy@linutronix.de> wrote:>
> On 2020-06-24 23:49:52 [+0200], Stephen Berman wrote:
>
> Let me summarize the thread here:
>
> On Stephen's system, ACPI informs the thermal zone driver to poll the
> temperature every second and the driver does so.
> The driver queries the temperature by invoking acpi_evaluate_integer()
> which invokes (at some point) acpi_ev_queue_notify_request().
Well, I don't quite see how acpi_ev_queue_notify_request() can be
invoked from the acpi_evaluate_integer() code path.
Do you have a call trace showing that?
> This then invokes acpi_os_execute_deferred() via
> queue_work_on(, kacpi_notify_wq, )
>
> acpi_os_execute_deferred() invokes acpi_ev_notify_dispatch() and this is
> no longer synchronised with the initial acpi_evaluate_integer() request.
That indeed would be the case, but I first need to understand what's
going on with the acpi_evaluate_integer() causing a Notify () to be
queued up.
Cheers!
next prev parent reply other threads:[~2020-07-14 13:55 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <87v9l65d2y.fsf@gmx.net>
[not found] ` <20200513220428.4nksinis2qs5dtmh@linutronix.de>
[not found] ` <87mu6aurfn.fsf@gmx.net>
[not found] ` <20200522164012.ynyvrjompv42jtmx@linutronix.de>
[not found] ` <87y2owwo2o.fsf@rub.de>
[not found] ` <20200609202339.cgy57twm2zdtjhje@linutronix.de>
[not found] ` <87tuzjcovq.fsf@gmx.net>
[not found] ` <20200610102514.4vdzu5u7d6vnpicn@linutronix.de>
[not found] ` <87imfyh6yx.fsf@gmx.net>
[not found] ` <87wo4dligz.fsf@gmx.net>
2020-06-12 11:01 ` power-off delay/hang due to commit 6d25be57 (mainline) Sebastian Andrzej Siewior
2020-06-14 12:12 ` Stephen Berman
2020-06-14 17:10 ` Sebastian Andrzej Siewior
2020-06-15 7:58 ` Stephen Berman
2020-06-15 14:51 ` Sebastian Andrzej Siewior
2020-06-15 15:41 ` Stephen Berman
2020-06-15 15:58 ` Sebastian Andrzej Siewior
2020-06-15 16:19 ` Stephen Berman
2020-06-15 16:32 ` Sebastian Andrzej Siewior
2020-06-16 7:14 ` Stephen Berman
2020-06-16 7:38 ` Sebastian Andrzej Siewior
2020-06-16 8:13 ` Stephen Berman
2020-06-16 15:55 ` Sebastian Andrzej Siewior
2020-06-16 20:28 ` Stephen Berman
2020-06-17 14:27 ` Sebastian Andrzej Siewior
2020-06-17 21:09 ` Stephen Berman
2020-06-24 20:11 ` Sebastian Andrzej Siewior
2020-06-24 21:49 ` Stephen Berman
2020-07-14 13:44 ` Sebastian Andrzej Siewior
2020-07-14 13:54 ` Rafael J. Wysocki [this message]
2020-07-14 14:11 ` Sebastian Andrzej Siewior
2020-07-14 15:53 ` Rafael J. Wysocki
2020-07-14 16:10 ` Sebastian Andrzej Siewior
2020-08-11 10:27 ` Sebastian Andrzej Siewior
2020-08-11 14:02 ` Rafael J. Wysocki
2020-07-19 10:07 ` Stephen Berman
2020-08-11 11:58 ` Stephen Berman
2020-08-11 13:29 ` Sebastian Andrzej Siewior
2020-08-11 14:34 ` Rafael J. Wysocki
2020-08-11 15:25 ` Sebastian Andrzej Siewior
[not found] ` <87ft8tayic.fsf@gmx.net>
2020-08-11 18:49 ` Sebastian Andrzej Siewior
2020-10-06 21:49 ` Sebastian Andrzej Siewior
2020-10-07 16:18 ` Rafael J. Wysocki
2020-10-26 17:20 ` Sebastian Andrzej Siewior
2020-12-02 18:03 ` Sebastian Andrzej Siewior
2020-12-02 18:31 ` Rafael J. Wysocki
2020-12-02 19:13 ` Rafael J. Wysocki
2020-12-31 20:46 ` Rafael J. Wysocki
2021-01-02 11:03 ` Rafael J. Wysocki
2021-01-04 15:38 ` Stephen Berman
2021-01-24 13:49 ` Stephen Berman
2021-01-25 16:25 ` Rafael J. Wysocki
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