From owner-freebsd-stable Wed Mar 28 17:13: 4 2001 Delivered-To: freebsd-stable@freebsd.org Received: from freeway.dcfinc.com (cx74889-a.phnx3.az.home.com [24.1.193.157]) by hub.freebsd.org (Postfix) with ESMTP id 2AF2537B71A for ; Wed, 28 Mar 2001 17:13:02 -0800 (PST) (envelope-from chad@freeway.dcfinc.com) Received: (from chad@localhost) by freeway.dcfinc.com (8.8.8/8.8.8) id SAA00301; Wed, 28 Mar 2001 18:12:54 -0700 (MST) (envelope-from chad) From: "Chad R. Larson" Message-Id: <200103290112.SAA00301@freeway.dcfinc.com> Subject: Re: Overheated PIII in SMP system In-Reply-To: from "Hartmann, O." at "Mar 28, 1 00:02:04 am" To: ohartman@klima.physik.uni-mainz.de (Hartmann, O.) Date: Wed, 28 Mar 2001 18:12:54 -0700 (MST) Cc: freebsd-stable@FreeBSD.ORG Reply-To: chad@DCFinc.com Organization: DCF, Inc. X-O/S: FreeBSD 2.2.8-STABLE X-Unexpected: The Spanish Inquisition X-Mailer: ELM [version 2.4ME+ PL40 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG As I recall, Hartmann, O. wrote: > One of our SMP servers, a FreeBSD 4.-RC box, is not willing > to compile a world. It faults with SIG 11. > > The problem is caused by a overheated Intel Pentium III/600MHz > with KATMAI core. Your core problem (heh) is caused by the fact that the idle behavior of the uniprocessor kernel is to halt, waiting for an interrupt. The idle behavior of the SMP kernel is to loop, looking for work to dispatch. This means the SMP never halts, and therefore runs hotter. That doesn't give you a cure, however... :-( -crl -- Chad R. Larson (CRL15) 602-953-1392 Brother, can you paradigm? chad@dcfinc.com chad@larsons.org larson1@home.com DCF, Inc. - 14623 North 49th Place, Scottsdale, Arizona 85254-2207 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message