From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753088AbaAZJcA (ORCPT ); Sun, 26 Jan 2014 04:32:00 -0500 Received: from mga11.intel.com ([192.55.52.93]:34450 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752425AbaAZJby (ORCPT ); Sun, 26 Jan 2014 04:31:54 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.95,723,1384329600"; d="scan'208";a="470928816" Message-ID: <52E4D607.6090509@linux.intel.com> Date: Sun, 26 Jan 2014 17:31:51 +0800 From: Jiang Liu Organization: Intel User-Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 MIME-Version: 1.0 To: "Rafael J. Wysocki" , Henrique de Moraes Holschuh , jrg.otte@gmail.com CC: Linux Kernel Mailing List , ACPI Devel Maling List Subject: Re: [kernel 3.13.0-06058-g2d08cd0] Strange ACPI error messages References: <4387759.ffnsEjDaad@vostro.rjw.lan> <20140125161817.GB25531@khazad-dum.debian.net> <2010872.ETICEKhYmO@vostro.rjw.lan> In-Reply-To: <2010872.ETICEKhYmO@vostro.rjw.lan> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi all, I will take care of this issue and send out a patch soon. Thanks! Gerry On 2014/1/26 6:31, Rafael J. Wysocki wrote: > On Saturday, January 25, 2014 02:18:17 PM Henrique de Moraes Holschuh wrote: >> On Sat, 25 Jan 2014, Rafael J. Wysocki wrote: >>> On Saturday, January 25, 2014 02:53:24 PM Rafael J. Wysocki wrote: >>>> On Saturday, January 25, 2014 11:03:09 AM Jörg Otte wrote: >>>>> Kernel 3.13.0-06058-g2d08cd0 displays following errors on the console: >>>>> >>>>> ACPI: \_PR_.CPU4: failed to get CPU APIC ID. >>>>> ACPI: \_PR_.CPU5: failed to get CPU APIC ID. >>>>> ACPI: \_PR_.CPU6: failed to get CPU APIC ID. >>>>> ACPI: \_PR_.CPU7: failed to get CPU APIC ID. >>>>> >>>>> I don't have CPUs 4..7! Error messages regarding not existing >>>>> CPUs should not be displayed. >>>>> kernel 3.13.0-05617-g3aacd62 and before did'nt show this messages. >>>>> >>>>> This is a regression. I never saw this messages before. >>>> >>>> Does your system show any other suspicious symptoms or are you worried about >>>> those messages only? >>> >>> Gerry, this is your commit b981513f806d (ACPI / scan: bail out early if failed >>> to parse APIC ID for CPU). Apparently, the BIOS has room for 4 CPUs more than >>> there actually are in the system. Maybe we can reduce the log level of those >>> messages to avoid ringing bells unnecessarily? >> >> It is standard practice (at least in SuperMicro boxes, but I've also seen it >> elsewhere) for the BIOS to have ACPI tables mentioning all cores supported >> by the biggest core-count CPU topology possible by the motherboard. The >> cores you don't have are reported as if they were hotpluggable but absent, >> even if they will *never* show up at runtime. Meh. >> >> So yes, such warnings will get annoying *very* quickly. > > Well, what about using acpi_handle_debug() in there, then? >