From: Arkadiusz Miskiewicz <a.miskiewicz@gmail.com>
To: Zhang Rui <rui.zhang@intel.com>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>,
linux-acpi@vger.kernel.org, lenb@kernel.org
Subject: Re: ACPI: Invalid active2 threshold
Date: Fri, 5 Sep 2014 08:24:18 +0200 [thread overview]
Message-ID: <201409050824.18447.a.miskiewicz@gmail.com> (raw)
In-Reply-To: <1409896948.8085.156.camel@rzhang1-toshiba>
On Friday 05 of September 2014, Zhang Rui wrote:
> On Fri, 2014-09-05 at 07:03 +0200, Arkadiusz Miskiewicz wrote:
> > On Friday 05 of September 2014, Zhang Rui wrote:
> > > On Thu, 2014-09-04 at 21:21 +0200, Rafael J. Wysocki wrote:
> > > > On Thursday, September 04, 2014 06:40:04 PM Arkadiusz Miskiewicz
wrote:
> > > > > Hi.
> > > > >
> > > > > I'm using 3.17.0-rc3-00002-g7505cea kernel on Dell XPS 15 machine:
> > > > > DMI: Dell Inc. XPS 15 9530/XPS 15 9530, BIOS A06 07/16/2014
> > > > > (this is latest bios)
> > > > >
> > > > > After loading thermal acpi driver I get:
> > > > >
> > > > > [54136.633643] ACPI: Invalid active2 threshold
> > > > > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>
> this is a BIOS bug. _AC2 is defined while _AL2 is not, thus this is an
> invalid active trip point.
> But it won't hurt IMO, because there are two ACPI Fan devices, and they
> are both used (for active trip point 0 and 1) in the ACPI thermal
> management in your laptop.
>
> > > > > [54136.633761] thermal LNXTHERM:00: registered as thermal_zone6
> > > > > [54136.633763] ACPI: Thermal Zone [TZ00] (28 C)
> > > > > [54136.634009] thermal LNXTHERM:01: registered as thermal_zone7
> > > > > [54136.634011] ACPI: Thermal Zone [TZ01] (-266 C)
>
> This is more serious to me.
> can you please file a bug at
> https://bugzilla.kernel.org/enter_bug.cgi?product=ACPI
> and attach your acpidump output there.
Done
https://bugzilla.kernel.org/show_bug.cgi?id=83921
>
> thanks,
> rui
>
> > > > > I assume bios is buggy (right?)
> > > >
> > > > Well, we don't seem to like the value for some reason. Also the -266
> > > > C for TZ01 looks suspicious.
> > > >
> > > > > What problems can happen to this machine due to this problem? It is
> > > > > quite hot frequently, so I wonder if there is some thermal
> > > > > management problem with it.
> > > >
> > > > I'm leaving this question to Rui.
> > >
> > > It looks like ACPI thermal driver fails to parse _AC2 control methods.
> > > please attach the acpidump output.
--
Arkadiusz Miśkiewicz, arekm / maven.pl
Q: vger.kernel.org postmasters - always rude and impolite, hmm?
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prev parent reply other threads:[~2014-09-05 6:24 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-04 16:40 ACPI: Invalid active2 threshold Arkadiusz Miskiewicz
2014-09-04 19:21 ` Rafael J. Wysocki
2014-09-05 1:34 ` Zhang Rui
[not found] ` <201409050703.56802.a.miskiewicz@gmail.com>
2014-09-05 6:02 ` Zhang Rui
2014-09-05 6:24 ` Arkadiusz Miskiewicz [this message]
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