Date: Mon, 01 Apr 1996 01:11:41 -0600 From: Melvin Deloyd Robinson <melrobin@Jetson.UH.EDU> To: Michael Smith <msmith@atrad.adelaide.edu.au> Cc: questions@freebsd.org Subject: Re: Rebooting Message-ID: <1.5.4b12.32.19960401071141.006a9cf8@jetson.uh.edu>
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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
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