From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jiang Liu Subject: Re: [kernel 3.13.0-06058-g2d08cd0] Strange ACPI error messages Date: Sun, 26 Jan 2014 17:31:51 +0800 Message-ID: <52E4D607.6090509@linux.intel.com> References: <4387759.ffnsEjDaad@vostro.rjw.lan> <20140125161817.GB25531@khazad-dum.debian.net> <2010872.ETICEKhYmO@vostro.rjw.lan> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: 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 In-Reply-To: <2010872.ETICEKhYmO@vostro.rjw.lan> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: "Rafael J. Wysocki" , Henrique de Moraes Holschuh , jrg.otte@gmail.com Cc: Linux Kernel Mailing List , ACPI Devel Maling List 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 J=C3=B6rg Otte wrote: >>>>> Kernel 3.13.0-06058-g2d08cd0 displays following errors on the con= sole: >>>>> >>>>> 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= =2E >>>>> >>>>> This is a regression. I never saw this messages before. >>>> >>>> Does your system show any other suspicious symptoms or are you wor= ried about >>>> those messages only? >>> >>> Gerry, this is your commit b981513f806d (ACPI / scan: bail out earl= y if failed >>> to parse APIC ID for CPU). Apparently, the BIOS has room for 4 CPU= s more than >>> there actually are in the system. Maybe we can reduce the log leve= l 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 sup= ported >> 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 a= bsent, >> even if they will *never* show up at runtime. Meh. >> >> So yes, such warnings will get annoying *very* quickly. >=20 > Well, what about using acpi_handle_debug() in there, then? >=20 -- 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