Date: Wed, 10 Jan 1996 09:30:33 +0000 () From: Neil Bradley <root@root> To: Michael Smith <msmith@atrad.adelaide.edu.au> Cc: terry@lambert.org, hasty@rah.star-gate.com, freebsd-hackers@freebsd.org Subject: Re: PnP problem... Message-ID: <Pine.BSD.3.91.960110092754.1550A-100000@beacon.synthcom.com> In-Reply-To: <199601101003.UAA09007@genesis.atrad.adelaide.edu.au>
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On Wed, 10 Jan 1996, Michael Smith wrote: > Neil Bradley stands accused of saying: > > Back when I designed BIOSes for P5 motherboards, we'd initialize ISA > You realise that this was an incredibly brave thing to admit to? Or an incredibly STUPID thing to admit to... ;-) > As an example; FreeBSD has trouble reliably rebooting a number of > motherboards; the ones I've had problems with were all 486 systems, > but I'm sure there were some P5 boards with the same problems. I spoke to Rod Grimes about this about a year ago. > Could you detail the appropriate steps to take to reliably force a > reboot from protected mode? And could whoever was in there last > (Rod I suspect...) look and see how this compares with the way we do > things? We'd force the keyboard controller to cause the CPU to reset. If remember correctly, doing an out 91h, 0feh caused a reboot. I can't remember for sure - I'll check some old source code when I get back home and let you know. -->Neil ------------------------------------------------------------------------------- Synthcom System's homepage: http://www.synthcom.com/ Europa Upgrade, Synth patches (D-50, Xpander/Matrix 12), used gear pricelist
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