From owner-freebsd-hackers Wed Feb 4 01:13:29 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id BAA17097 for hackers-outgoing; Wed, 4 Feb 1998 01:13:29 -0800 (PST) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from Ilsa.StevesCafe.com (Ilsa.StevesCafe.com [205.168.119.129]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id BAA17092 for ; Wed, 4 Feb 1998 01:13:23 -0800 (PST) (envelope-from fbsd@Ilsa.StevesCafe.com) Received: from Ilsa.StevesCafe.com (localhost [127.0.0.1]) by Ilsa.StevesCafe.com (8.8.7/8.8.5) with ESMTP id CAA26219 for ; Wed, 4 Feb 1998 02:13:19 -0700 (MST) Message-Id: <199802040913.CAA26219@Ilsa.StevesCafe.com> X-Mailer: exmh version 2.0gamma 1/27/96 From: Steve Passe To: freebsd-hackers@FreeBSD.ORG Subject: NMIs Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Wed, 04 Feb 1998 02:13:19 -0700 Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG X-To-Unsubscribe: mail to majordomo@FreeBSD.org "unsubscribe hackers" Hi, I discovered that you only get ONE NMI from a switch attached to IOCHK#. This fisrt NMI will trap to the debugger, but additional pushes of the swith have no effect. Reading the PIIX datasheet it appears that the NMI ISR must manipulate ports 0x61 & 0x70, but the description contradicts itself... Does anyone know the specific routine to re-enable the NMI once it has been called via IOCHK? -- Steve Passe | powered by smp@csn.net | Symmetric MultiProcessor FreeBSD