From owner-freebsd-smp Mon Aug 20 12:21:25 2001 Delivered-To: freebsd-smp@freebsd.org Received: from freebsd.dk (fw-rl0.freebsd.dk [212.242.86.114]) by hub.freebsd.org (Postfix) with ESMTP id 47C0B37B411 for ; Mon, 20 Aug 2001 12:21:22 -0700 (PDT) (envelope-from sos@freebsd.dk) Received: (from sos@localhost) by freebsd.dk (8.11.3/8.11.3) id f7KJLcA87034; Mon, 20 Aug 2001 21:21:38 +0200 (CEST) (envelope-from sos) From: Søren Schmidt Message-Id: <200108201921.f7KJLcA87034@freebsd.dk> Subject: Re: Bye bye dear SMP-system In-Reply-To: <20010820161825.1908.cpmta@c017.sfo.cp.net> "from Jon Noack at Aug 20, 2001 09:18:25 am" To: Jon Noack Date: Mon, 20 Aug 2001 21:21:38 +0200 (CEST) Cc: freebsd-smp@FreeBSD.ORG Reply-To: sos@freebsd.dk X-Mailer: ELM [version 2.4ME+ PL88 (25)] MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=ISO-8859-1 Sender: owner-freebsd-smp@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org It seems Jon Noack wrote: > I have 2 machines running dual Celeron 500s on BP6s. The only problems > I have come across have had to do with the HPT366 controller. I use IBM > 75GXP hard drives in the machines and enabled tagged queuing (using the > 'hw.ata.tags="1"' line in /boot/loader.conf). Under heavy reads (but not > heavy writes - weird), the kernel would post an "ad0: READ command timeout > resetting" error followed by an "ad0: invalidating queued requests" > error. That was shortly followed by a hard lock. I tried 'hw.ata.wc="1"' > instead and have had no problems (except if and when the UPS dies). I > could reproduce the error by cvsuping my source tree to RELENG_4_3. The > first time was fine, as there was some writing because several items were > being updated (from 4.3-release). Later attempts (which were almost > solely reads) always resulted in a hard lock. The HPT366 has HW issues with some of the fast disk, I havn't been able to find a solution to that, nor has HPT as far as I'm informed.. -Søren To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message