From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Madore Subject: APIC not enabled on Opteron Date: Fri, 22 Aug 2003 16:31:02 -0700 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <3F46A7B6.5060706@aslab.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org Hi, I'm not postive if my problem is being caused by ACPI, but it seems to be involved, so I'm posting my questiong here first. If this is not an ACPI issue just let me know. I have a single processor Operteron motherboard with the Nvidia nforce 3 chipset. I am running a 32-bit Linux kernel (2.4.6-test3) and things are perfectly stable. The problem is that the system is running in XT-PIC mode even though I enabled Local APIC support. Here is the contents of /proc/interrupts: CPU0 0: 53477 XT-PIC timer 1: 115 XT-PIC i8042 2: 0 XT-PIC cascade 8: 1 XT-PIC rtc 9: 0 XT-PIC acpi 12: 60 XT-PIC i8042 14: 62385 XT-PIC ide0 15: 1 XT-PIC ide1 NMI: 0 LOC: 53266 ERR: 0 This may not look too crowded, but when drivers are loaded for all the onboard hardware there is a lot of sharing going on. I also tried enabling the IO-APIC, which works, but I still only get 15 IRQs. The reason I think ACPI is involved is because of this kernel message: Using ACPI for processor (LAPIC) configuration information I have attached the full kernel log. If anyone can give me a clue, I'd appreciate it. Thanks Mike ------------------------------------------------------- This SF.net email is sponsored by: VM Ware With VMware you can run multiple operating systems on a single machine. WITHOUT REBOOTING! Mix Linux / Windows / Novell virtual machines at the same time. Free trial click here:http://www.vmware.com/wl/offer/358/0