Date: Wed, 28 Jun 1995 18:15:23 +0930 (CST) From: Michael Smith <msmith@atrad.adelaide.edu.au> To: ahill@netspace.net.au (Anthony Hill) Cc: tom@uniserve.com, jan@bagend.atl.ga.us, hackers@freebsd.org Subject: Re: keyboard locks up 950622-SNAP Message-ID: <199506280845.SAA20158@genesis.atrad.adelaide.edu.au> In-Reply-To: <Pine.BSF.3.91.950628181643.10753A-100000@stang.netspace.net.au> from "Anthony Hill" at Jun 28, 95 06:20:14 pm
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Anthony Hill stands accused of saying: > > > The first try was just installing bin. After printing xxxx blocks > > > on debug window I got Fatal trap 12: page fault while in kernel mode. > > > > Sounds like hardware. Try disabling the cache. > > > What is the problem with FreeBSD and caches - I could not install, and > cannot rebuild a kernel with my cache turned on ! Turning it off is a > pretty easy fix - but I also take a pretty big performance hit. > > What does it mean if your cache is causing these problems ? It usually means that your cache has a problem dealing with busmastering interface cards. Under DOS/Windows there's little likelihood of the processor conflicting with a busmastering card, but with FreeBSD all bets are off. It's basically a motherboard design fault, and one that's not particularly easy to work around by the sound of it. -- ]] Mike Smith, Software Engineer msmith@atrad.adelaide.edu.au [[ ]] Genesis Software genesis@atrad.adelaide.edu.au [[ ]] High-speed data acquisition and [[ ]] realtime instrument control (ph/fax) +61-8-267-3039 [[ ]] My car has "demand start" - Terry Lambert [[
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