Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753170AbaAYWOx (ORCPT ); Sat, 25 Jan 2014 17:14:53 -0500 Received: from v094114.home.net.pl ([79.96.170.134]:58776 "HELO v094114.home.net.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752426AbaAYWOv convert rfc822-to-8bit (ORCPT ); Sat, 25 Jan 2014 17:14:51 -0500 From: "Rafael J. Wysocki" To: =?ISO-8859-1?Q?J=F6rg?= Otte Cc: "Rafael J. Wysocki" , Linus Torvalds , Linux Kernel Mailing List , ACPI Devel Maling List Subject: Re: [kernel 3.13.0-06058-g2d08cd0] Strange ACPI error messages Date: Sat, 25 Jan 2014 23:29:04 +0100 Message-ID: <1691151.Vu0Ye8lgsC@vostro.rjw.lan> User-Agent: KMail/4.11.4 (Linux/3.13.0-rc8+; KDE/4.11.4; x86_64; ; ) In-Reply-To: References: <9739501.rBu7tJQIYj@vostro.rjw.lan> MIME-Version: 1.0 Content-Transfer-Encoding: 8BIT Content-Type: text/plain; charset="utf-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Saturday, January 25, 2014 05:32:19 PM Jörg Otte wrote: > 2014-01-25 Rafael J. Wysocki : > > 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? > > > > Rafael > > > > what's looking badly is this: > > ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S1_] > (20131218/hwxface-580) > ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S2_] > (20131218/hwxface-580) That means your BIOS doesn't support system sleep states S1 and S2, but we should be able to suppress those messages I think. > and this: > > acpi PNP0A08:00: _OSC: OS supports [ASPM ClockPM Segments MSI] > \_SB_.PCI0:_OSC invalid UUID > _OSC request data:1 1e 0 > acpi PNP0A08:00: _OSC failed (AE_ERROR); disabling ASPM That means the BIOS doesn't want to grant the kernel control of extended PCIe features on your system. > but these messages are not new. They indicate things that are not supported by the BIOS, but I agree that the messages are a bit cryptic. Thanks! -- I speak only for myself. Rafael J. Wysocki, Intel Open Source Technology Center. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/