Date: Tue, 14 Dec 1999 01:01:21 -0500 From: Greg Childers <gchil0@pop.uky.edu> To: Peter Wemm <peter@netplex.com.au>, Greg Lehey <grog@lemis.com> Cc: Mike Smith <msmith@FreeBSD.ORG>, Poul-Henning Kamp <phk@critter.freebsd.dk>, current@FreeBSD.ORG Subject: Re: HEADSUP: wd driver will be retired! Message-ID: <4.2.0.58.19991214005153.00953590@pop.uky.edu> In-Reply-To: <19991213234037.36B341CA0@overcee.netplex.com.au> References: <Message from Greg Lehey <grog@lemis.com> <19991211130339.N760@mojave.worldwide.lemis.com>
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At 07:40 AM 12/14/99 +0800, Peter Wemm wrote: >Greg Lehey wrote: > > On Friday, 10 December 1999 at 23:32:27 -0800, Mike Smith wrote: > > > [missing attribution to Greg Childers <gchil0@pop.uky.edu>] > > >> Except that ATA currently does not work on my system. So I assume I'm not > > >> the only one. > > > > > > Actually, to quote from your original message: > > > > > >> According to technical product summary, the primary IDE interface, on > > >> which both my drives reside, is a PCTech RZ1000 on the PCI local bus. > > > >The RZ1000 is *dangerous*! We are doing no favours by making it run.. :-/ >IMHO It is better to loose the user by not playing ball than to corrupt >their data or run unreliably and make them hate us for it. > >http://www.faqs.org/faqs/pc-hardware-faq/enhanced-IDE/part1/ <snip> > o The PC-Tech RZ-1000, used on AT&T, Dell, Gateway and Intel boards, > also has two data-corrupting bugs. See also > <http://www.intel.com/procs/support/rz1000/index.htm>. > > In both cases, the corruption occurs only in specific software > environments and is very subtle; you can go on working for months > without suspecting anything more than buggy software. The damage can > be immense. For all the details, look at Roedy Green's (roedy@bix.com) > "PCI EIDE controller flaws" FAQ included with his EIDE test > <ftp://garbo.uwasa.fi/pc/diskutil/eidete19.zip>; program which will > test your system for the bugs. Thanks for the info! I wasn't aware of this problem. Fortunately, the fix was easy. From eideflaw.txt in the above mentioned utility (actually it's eidete20.zip now): Some BIOSes have a feature disable the EIDE prefetch buffer. <snip> This will bypass both RZ-1000 flaws... I haven't tried ATA after today's update. I'll do that tomorrow. Greg To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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