Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932718AbVLBBmq (ORCPT ); Thu, 1 Dec 2005 20:42:46 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932714AbVLBBmq (ORCPT ); Thu, 1 Dec 2005 20:42:46 -0500 Received: from zproxy.gmail.com ([64.233.162.199]:21033 "EHLO zproxy.gmail.com") by vger.kernel.org with ESMTP id S932720AbVLBBmp convert rfc822-to-8bit (ORCPT ); Thu, 1 Dec 2005 20:42:45 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=mICdiqMUO+rkTD6nGN7pDIsPLjh8LF+6L1lS4LyF4fCVFGaReJQn6pSroXR+YbY0Z4jAaXsfpzcTup6sZNIJGpSxqlMpzCRZ/AaBbNkTQhQqmrUzwapXRDm9M682LL1/ciFiMmCRXiyrWNARQgWc5+KAgU5fupxRG2CWRZX648k= Message-ID: Date: Thu, 1 Dec 2005 17:42:43 -0800 From: Keith Mannthey To: Bharath Ramesh Subject: Re: Only one processor detected in 8-Way opteron in 32-bit mode Cc: "linux-kernel@vger.kernel.org" In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Content-Disposition: inline References: Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 857 Lines: 22 Did the smp kernel that came with your distro boot smp on i386? An apic is an apic. I don't think there is a diffrent interrupt controler (but maybe I am wrong) I can boot opteron SMP with i386 just fine. My guess is what you are seeing is specific to your box. What sort of a box is this 8-way AMD Opteron..... What i386 subarch are you selecting in your i386 build? Could you try the Generic architecture? Maybe the box is in clustered apic mode. Does booting with acpi=off help? Can you send the dmesg from your x86_64 partition. It will show us what the apic is doing in that arch. Thanks, Keith - 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/