From owner-freebsd-smp Mon Nov 23 18:45:59 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id SAA22413 for freebsd-smp-outgoing; Mon, 23 Nov 1998 18:45:59 -0800 (PST) (envelope-from owner-freebsd-smp@FreeBSD.ORG) Received: from GndRsh.aac.dev.com (GndRsh.aac.dev.com [207.149.232.62]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id SAA22405 for ; Mon, 23 Nov 1998 18:45:55 -0800 (PST) (envelope-from rgrimes@GndRsh.aac.dev.com) Received: (from rgrimes@localhost) by GndRsh.aac.dev.com (8.8.8/8.8.8) id SAA12859; Mon, 23 Nov 1998 18:45:13 -0800 (PST) (envelope-from rgrimes) From: "Rodney W. Grimes" Message-Id: <199811240245.SAA12859@GndRsh.aac.dev.com> Subject: Re: hangs with SMP In-Reply-To: <199811240205.SAA14864@root.com> from David Greenman at "Nov 23, 98 06:05:58 pm" To: dg@root.com Date: Tue, 24 Nov 1998 02:45:12 +0000 (GMT) Cc: smp@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL32 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-smp@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org > I just started doing some testing of the -current SMP code and had a hard > hang a few minutes into a "make -j2 world". The machine seemed quite dead - > even the soft power switch didn't work. The hang occured during heavy disk > I/O, so it seems like it could be a problem with managing the APIC. The > machine is a dual PII/450 on a Tyan S1836DLUAN-GX motherboard. FYI, the ``soft power switch'' normally needs the CPU to respond in order for it to work, however, there is a timeout circuit such that if the switch is held for >4 or so seconds the power supply is told to shut down. I know this won't help you find the SMP bug, but it may atleast allow you to reset the machine without pulling the power plug out of the wall. -- Rod Grimes - KD7CAX - (RWG25) rgrimes@gndrsh.aac.dev.com Accurate Automation, Inc. Reliable computers for FreeBSD http://www.aai.dnsmgr.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message