Date: Sun, 31 Mar 1996 11:47:38 +0200 (MET DST) From: "Christoph P. Kukulies" <kuku@gilberto.physik.rwth-aachen.de> To: grog@lemis.de (Greg Lehey) Cc: melrobin@Jetson.UH.EDU, questions@freebsd.org Subject: Re: Rebooting Message-ID: <199603310947.LAA00434@gilberto.physik.rwth-aachen.de> In-Reply-To: <199603310829.KAA29827@allegro.lemis.de>
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> > Melvin Deloyd Robinson writes: > > > > I have a friend who has installed FreeBSD 2.1-RELEASE on his machine. Upon > > rebooting he gets an error stating that the Keyboard reboot failed and then > > the machine tries the CPU shutdown. The later never works and I'm stumped > > about what to tell him. Tell him he might want to compile a new kernel with options BROKEN_KEYBOARD_RESET > > Tell him to press the Big Red Button (reset button, even if it isn't > red). This sometimes happens on hardware that doesn't behave the way > FreeBSD expects it to. > > > I looked in the code (module vm_machdep.c) and found the error message, but > > can't glean very much from that. Looking at the dmesg output the sc0 driver > > is from 60h-6Fh which seems correct (at least it agrees with my machine), > > but is this the address for IO_KBD. The code outputs 0xFE to IO_KBD + 4, > > but is this the same as CTRL-ALT-DELETE? > > > > As you can probably tell from my ramblings that I'm pretty confused. Please > > help. > > You can be pretty sure that the addresses and such are OK. The > problems in this area are generally a matter of timing, and since the > timing isn't documented, it's difficult to guess how a particular > machine will react. This isn't just a FreeBSD problem, BTW. Most PC > UNIX implementations have it, and commercial products like UnixWare > seem to have the most trouble. > > Greg > > --Chris Christoph P. U. Kukulies kuku@gil.physik.rwth-aachen.de
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