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Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!carssdf!usenet
From: usenet@carssdf.UUCP (John Watson)
Newsgroups: comp.unix.xenix,comp.unix.i386
Subject: Re: DMA (maybe) and tape drive problem (PANIC)
Summary: re: DMA related panic Xenix 386 ver 2.3.2
Message-ID: <256@carssdf.UUCP>
Date: 23 Aug 90 00:37:16 GMT
References: <1990Aug20.052225.3371@jersey> <927@bilver.UUCP>
Distribution: na
Organization: C.A.R.S.,Middlesex,NJ
Lines: 15


I have a similar problem on a 486 card.  The card with the Intel/Zymos
80..31 80..32 2 chip set is OK (I forget the whole number).  Another
486 that has its own 128K cache using the "OPTI" chipset and an 80C206
peripheral/DMA/CMOS chip crashes whenever I use 2 dma devices at the
same time, like floppy or archive tape in combination with hard disk.
The hard disk is a 600meg ESDI with 4 Meg cacheing controller by 
Consensys (Toronto Canada).  Panic, Double Panic etc..    I am trying
things like a different 80c206, or different 80c206 vendor, Semens and
Chips & Tech. both make it.  So far I have only tried Semens.  If this
helps you good luck.  If you have related info, pls pass on.  Incedentally,
other than this minor/fatal flaw it is the fastest system I have ever seen.
This is not in the same league with 386's.

John Watson       ...!carsdf!usenet