From owner-freebsd-questions Sun Mar 31 23:11:33 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id XAA04602 for questions-outgoing; Sun, 31 Mar 1996 23:11:33 -0800 (PST) Received: from Post-Office.UH.EDU (Post-Office.UH.EDU [129.7.1.20]) by freefall.freebsd.org (8.7.3/8.7.3) with ESMTP id XAA04585 for ; Sun, 31 Mar 1996 23:11:30 -0800 (PST) Received: from ns1.uh.edu (SIP-14280.Public-Dialups.UH.EDU) by Post-Office.UH.EDU (PMDF V5.0-6 #8380) id <01I30C5EMBY8000HWD@Post-Office.UH.EDU>; Mon, 01 Apr 1996 01:11:27 -0600 (CST) Date: Mon, 01 Apr 1996 01:11:41 -0600 From: Melvin Deloyd Robinson Subject: Re: Rebooting X-Sender: melrobin@jetson.uh.edu To: Michael Smith Cc: questions@freebsd.org Message-id: <1.5.4b12.32.19960401071141.006a9cf8@jetson.uh.edu> MIME-version: 1.0 X-Mailer: Windows Eudora Light Version 1.5.4b12 (32) Content-type: text/plain; charset="us-ascii" Content-transfer-encoding: 7BIT Sender: owner-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk At 10:40 AM 4/1/96 +0930, you wrote: >The 'vulcan nerve pinch' isn't special - under DOS it's interpreted by >the BIOS which causes a reboot, under FreeBSD it's handled by the >keyboard driver. The command to the keyboard controller is supposed to >strobe the CPU reset line - if the 'Keyboard reset failed' message shows, >this has failed to happen. The shutdown code then tries to generate a >triple fault, which should cause the CPU to reset, but this fails also >on some motherboards. (Your friend quite likely has a UMC chipset on their >motherboard). Yes, I think he does have a UMC chipset, but I also have one in mine too, and it works fine. I'm going to try to research this a little bit more. Would I need to do a make world if I changed vm_machdep.c to reflect any changes I made? Melvin