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Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!munnari.OZ.AU!news.ecn.uoknor.edu!news.wildstar.net!news.ececs.uc.edu!newsrelay.netins.net!news.dacom.co.kr!newsfeed.internetmci.com!in2.uu.net!nwnewsold.wa.com!news.halcyon.com!evt-pm0-ip5.halcyon.com!user From: markus@halcyon.com (Mark Hastings) Newsgroups: comp.unix.bsd.netbsd.misc Subject: NetBSD and AMD 486 problem Date: Mon, 19 Aug 1996 22:57:51 -0800 Organization: Aegis Group Inc. Lines: 33 Message-ID: <markus-1908962257510001@evt-pm0-ip5.halcyon.com> NNTP-Posting-Host: evt-pm0-ip5.halcyon.com Hi all, I've been working with a company that has version 1.1A of NetBSD running on a TriEMS ISA CPU card. Lately, these systems have reported alot of reboots. The error message say something about "VM_Falt" at locations int the 0xF87X XXXX range. Some systems seem to work OK others seem to spontaneously reboot. These CPU boards have AMI Bios, the VIA chipset, and 32 Megs of RAM. Also, there VM_Falts seem to have got worse after the vendor switched to a different version of AMD 486 CPU. The new ones have a write/back cache and the old ones have write/thru. The new parts have the following markings: Am486 DX4-100 A80486DX4-100 SV8B CV 9621 EPA The older more reliable part was: Am486 DX4-100 A80486DX4-100 NV8T B 9604BPA-T Does anyone have an idea if this newer CPU could be causing a problem, or is this wishful thinking on my part? Thanks in advance, Mark -- Mark Hastings markus@halcyon.com