From owner-freebsd-current Wed Jan 2 22:16:27 2002 Delivered-To: freebsd-current@freebsd.org Received: from rover.village.org (rover.bsdimp.com [204.144.255.66]) by hub.freebsd.org (Postfix) with ESMTP id CAE3A37B41A for ; Wed, 2 Jan 2002 22:16:23 -0800 (PST) Received: from harmony.village.org (harmony.village.org [10.0.0.6]) by rover.village.org (8.11.3/8.11.3) with ESMTP id g036GJl45706; Wed, 2 Jan 2002 23:16:19 -0700 (MST) (envelope-from imp@village.org) Received: from localhost (localhost [127.0.0.1]) by harmony.village.org (8.11.6/8.11.6) with ESMTP id g036GI549734; Wed, 2 Jan 2002 23:16:18 -0700 (MST) (envelope-from imp@village.org) Date: Wed, 02 Jan 2002 22:16:16 -0700 (MST) Message-Id: <20020102.221616.63342828.imp@village.org> To: freebsd-current@FreeBSD.ORG, olli@secnetix.de Subject: Re: SMP system hangs on current, not stable From: "M. Warner Losh" In-Reply-To: <200201021845.g02IjiL68980@lurza.secnetix.de> References: <200201021831.g02IV3C64392@ns.altadena.net> <200201021845.g02IjiL68980@lurza.secnetix.de> X-Mailer: Mew version 2.1 on Emacs 21.1 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG In message: <200201021845.g02IjiL68980@lurza.secnetix.de> Oliver Fromme writes: : This can also be done : with PCI slots, if that board doesn't have an ISA slot : anymore, but I don't know which pins (it's _not_ the first : two pins), and it's a lot more difficult because the PCI : pins are much smaller. I don't think it is that simple. The PCI bus has timing issues that mean that shorting just two pins likely isn't going to work. MS has a design for generating SERR when you press a button, but it does a lot of stuff to make sure that the signal is asserted at the right time. I know that my simple experiments with doing this have ended in failure... Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message