Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932592AbWEXFQD (ORCPT ); Wed, 24 May 2006 01:16:03 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932595AbWEXFQD (ORCPT ); Wed, 24 May 2006 01:16:03 -0400 Received: from mga03.intel.com ([143.182.124.21]:12660 "EHLO azsmga101-1.ch.intel.com") by vger.kernel.org with ESMTP id S932592AbWEXFQB convert rfc822-to-8bit (ORCPT ); Wed, 24 May 2006 01:16:01 -0400 X-IronPort-AV: i="4.05,163,1146466800"; d="scan'208"; a="40752405:sNHT18235147" X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT Subject: RE: APIC error on CPUx Date: Wed, 24 May 2006 01:15:55 -0400 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: APIC error on CPUx Thread-Index: AcZ+qMfP9BA5i7RjTPiYFodgrK/UhwAN1Vrw From: "Brown, Len" To: "Vladimir Dvorak" Cc: "Jan Engelhardt" , "Andi Kleen" , X-OriginalArrivalTime: 24 May 2006 05:15:56.0471 (UTC) FILETIME=[22EB6C70:01C67EF1] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1551 Lines: 49 Vladimir's SCB2/Serverworks boots with and without "acpi=off", and in both cases the IOAPICS are set up properly, the device work, and there are the following messages: APIC error on CPU1: 00(40) APIC error on CPU0: 00(40) APIC error on CPU0: 40(40) APIC error on CPU0: 40(40) APIC error on CPU0: 40(40) These are the now infamous "Receive illegal vector" messages. I expect this chipset has a physical APIC bus (rather than the FSB delivery used today) which is mis-behaving. I've never heard of this being associated with an actual failure (such as a lost interrupt). This message is already KERN_DEBUG -- can't get any lower priority than that. Maybe we should put this message under apic_printk()? Since acpi=off doesn't make any difference, I recommend running in the default configuration without this parameter. ---- Jan's system has APIC error on CPU0: 02(02) Also seems to be receiving junk on the APIC bus. > The problem goes away with noapic or acpi=off, but of course that also > means you don't have IRQs > 15. My comment about PIC-mode probably being okay applies to this motherboard but not Vladimir's above. >>>Usually a crappy/broken/misdesigned motherboard. >Elitegroup L7S7A2 here. This is a SiS746 motherboard. This kind of error seems to be relatively common on SiS. -Len - 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/