From owner-freebsd-questions@FreeBSD.ORG Tue May 5 00:46:04 2009 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 10C301065673 for ; Tue, 5 May 2009 00:46:04 +0000 (UTC) (envelope-from duane@cheekymonkey.us) Received: from wf-out-1314.google.com (wf-out-1314.google.com [209.85.200.172]) by mx1.freebsd.org (Postfix) with ESMTP id E9DC78FC0A for ; Tue, 5 May 2009 00:46:03 +0000 (UTC) (envelope-from duane@cheekymonkey.us) Received: by wf-out-1314.google.com with SMTP id 24so3037694wfg.7 for ; Mon, 04 May 2009 17:46:03 -0700 (PDT) MIME-Version: 1.0 Received: by 10.142.141.21 with SMTP id o21mr2284465wfd.49.1241484363590; Mon, 04 May 2009 17:46:03 -0700 (PDT) Date: Mon, 4 May 2009 20:46:03 -0400 Message-ID: <5e8ad96d0905041746o67c463e9t1297a0b3103557bf@mail.gmail.com> From: Duane To: freebsd-questions Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Part II: Running SMP kernel but only one cpu X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 05 May 2009 00:46:04 -0000 The bios in this old Micron dual PPro-180 full tower antique only initializes the second CPU if the machine is cold-booted. A simple 'reboot' results in a single processor machine regardless of the kernel that is launched. This fact -- unknown to me before last night -- was the source of a great deal of lost time! My 6.4 SMP kernel (now customized) runs just fine, with both cpus active, *except* for this message streaming constantly up the boot console. (from /var/log/messages:) May 4 20:20:33 poobah kernel: interrupt storm detected on "irq15:"; throttling interrupt source May 4 20:21:02 poobah last message repeated 42 times May 4 20:21:03 poobah login: ROOT LOGIN (root) ON ttyv1 May 4 20:21:03 poobah kernel: interrupt storm detected on "irq15:"; throttling interrupt source May 4 20:21:33 poobah last message repeated 30 times May 4 20:23:33 poobah last message repeated 120 times May 4 20:33:33 poobah last message repeated 599 times May 4 20:40:01 poobah last message repeated 387 times etc etc ad repetitum infinitum Question1: Is this something I should go to some lengths to eliminate? Question2: What the heck is it? Best regards, -- Duane