From owner-freebsd-smp Mon Aug 20 9:18:30 2001 Delivered-To: freebsd-smp@freebsd.org Received: from c017.sfo.cp.net (c017-h007.c017.sfo.cp.net [209.228.12.221]) by hub.freebsd.org (Postfix) with SMTP id 89F4B37B407 for ; Mon, 20 Aug 2001 09:18:25 -0700 (PDT) (envelope-from noackjr@compgeek.com) Received: (cpmta 1909 invoked from network); 20 Aug 2001 09:18:25 -0700 Date: 20 Aug 2001 09:18:25 -0700 Message-ID: <20010820161825.1908.cpmta@c017.sfo.cp.net> X-Sent: 20 Aug 2001 16:18:25 GMT Received: from [64.1.99.131] by mail.compgeek.com with HTTP; 20 Aug 2001 09:18:25 PDT Content-Type: text/plain Content-Disposition: inline Mime-Version: 1.0 To: freebsd-smp@FreeBSD.org From: Jon Noack X-Mailer: Web Mail 3.9.3.5 X-Sent-From: noackjr@compgeek.com Subject: Re: Bye bye dear SMP-system 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 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. Jon On Mon, 20 August 2001, Joachim Strömbergson wrote: > So, a few questions: > (1) Is late 4.3-STABLE and 4.4-RC unstable in SMP mode? I suspect not, > > (2) How to go about catching the lock? Console doesn't show anything, > the machines simply freezes over, > > (3) Any BP6-user with similar experience that have any ideas? To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message