From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arkadiusz Miskiewicz Subject: Re: ACPI: Invalid active2 threshold Date: Fri, 5 Sep 2014 08:24:18 +0200 Message-ID: <201409050824.18447.a.miskiewicz@gmail.com> References: <201409041840.04182.a.miskiewicz@gmail.com> <201409050703.56802.a.miskiewicz@gmail.com> <1409896948.8085.156.camel@rzhang1-toshiba> Mime-Version: 1.0 Content-Type: Text/Plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mail-la0-f50.google.com ([209.85.215.50]:35566 "EHLO mail-la0-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751112AbaIEGYX convert rfc822-to-8bit (ORCPT ); Fri, 5 Sep 2014 02:24:23 -0400 Received: by mail-la0-f50.google.com with SMTP id mc6so13202840lab.37 for ; Thu, 04 Sep 2014 23:24:21 -0700 (PDT) In-Reply-To: <1409896948.8085.156.camel@rzhang1-toshiba> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Zhang Rui Cc: "Rafael J. Wysocki" , linux-acpi@vger.kernel.org, lenb@kernel.org 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 Miskiewic= z=20 wrote: > > > > > Hi. > > > > >=20 > > > > > I'm using 3.17.0-rc3-00002-g7505cea kernel on Dell XPS 15 mac= hine: > > > > > DMI: Dell Inc. XPS 15 9530/XPS 15 9530, BIOS A06 07/16/2014 > > > > > (this is latest bios) > > > > >=20 > > > > > After loading thermal acpi driver I get: > > > > >=20 > > > > > [54136.633643] ACPI: Invalid active2 threshold > > > > > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ >=20 > this is a BIOS bug. _AC2 is defined while _AL2 is not, thus this is a= n > invalid active trip point. > But it won't hurt IMO, because there are two ACPI Fan devices, and th= ey > are both used (for active trip point 0 and 1) in the ACPI thermal > management in your laptop. >=20 > > > > > [54136.633761] thermal LNXTHERM:00: registered as thermal_zon= e6 > > > > > [54136.633763] ACPI: Thermal Zone [TZ00] (28 C) > > > > > [54136.634009] thermal LNXTHERM:01: registered as thermal_zon= e7 > > > > > [54136.634011] ACPI: Thermal Zone [TZ01] (-266 C) >=20 > This is more serious to me. > can you please file a bug at > https://bugzilla.kernel.org/enter_bug.cgi?product=3DACPI > and attach your acpidump output there. Done https://bugzilla.kernel.org/show_bug.cgi?id=3D83921 >=20 > thanks, > rui >=20 > > > > > I assume bios is buggy (right?) > > > >=20 > > > > Well, we don't seem to like the value for some reason. Also th= e -266 > > > > C for TZ01 looks suspicious. > > > >=20 > > > > > 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. > > > >=20 > > > > I'm leaving this question to Rui. > > >=20 > > > It looks like ACPI thermal driver fails to parse _AC2 control met= hods. > > > please attach the acpidump output. --=20 Arkadiusz Mi=C5=9Bkiewicz, arekm / maven.pl Q: vger.kernel.org postmasters - always rude and impolite, hmm? -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html