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000022_news@columbia.edu_Wed Oct 4 16:26:59 1995.msg
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From: rick@helix.nih.gov (Rick Troxel)
Subject: Re: ?Warning: unknown hardware for port
In-Reply-To: mayhew@wkuvx1.wku.edu's message of 3 Oct 95 23: 20:36 CDT
Message-Id: <RICK.95Oct4122659@helix.nih.gov>
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Reply-To: rick@helix.nih.gov (Richard Troxel)
Organization: National Institutes of Health, Bethesda, MD
References: <445vuc$4g6@raffles.technet.sg> <1995Oct1.161112.62432@cc.usu.edu>
<1995Oct3.232036.1@netnews.wku.edu>
Date: Wed, 4 Oct 1995 16:26:59 GMT
Apparently-To: kermit.misc@watsun.cc.columbia.edu
In article <1995Oct1.161112.62432@cc.usu.edu>, jrd@cc.usu.edu (Joe
Doupnik) writes:
>> ?Warning: unknown hardware for port: Using the Bios as BIOS1.
> port/IRQ at the same time. Do you have a real-mode TSR grabbing the
> port? SLIP_PPP will do so, so will some mouse drivers. I am no
> expert on Win 3.1x serial port mumbo jumbo in system.ini, but if
> yours is slightly tangled then a trip to the Windows Resource Kit
> is a good suggestion.
I too have observed these symptoms, just as sporadically as reported
below, but in a straight DOS dialup context.
I routinely run Kermit on port 2 in one of several DOS VM's
under Windows 3.1. I've seen the "unknown hardware" msg sporadically
and unrepeatably, most recently about 60 seconds ago. All my attempts
to track this down have failed. Kermit is the only comm software I
run. The dos mouse driver is always loaded before windows and is
configured for COM1. When so configured, it does not touch
COM2 (I tested this using a protected-mode utility which protects
the i/o port addresses and watches for attempts to access them).
I use a PS/2 mouse with Microsoft driver, often don't invoke win at all,
othewise similar.
I've seen the problem with two different I/O boards, everything standard
about them, standard irq's, standard port addresses, except that my
current card has 2 16550's instead of 2 8250's.
For me it's persisted across 3 different PCs and at least a couple of
modems (probably all AT&T 9600 bps or faster).
My resolution of the problem is always the same--I exit Kermit and
reinvoke it. Problem is always gone, and I may not see it again
for days.
Here I have a suggestion for an easier workaround: For me it suffices
simply to escape back to the MS-Kermit prompt and issue
set port 1 (or 2 as appropriate),
then connect again and procede with my login.
No TCP/IP drivers or network drivers of any sort are loaded. This
is a straight serial port to modem connection on my standard, clone
home machine.
Same, except mine is a real PS/2.
The only memory-resident software loaded is standard DOS/WINDOWS
stuff: HIMEM, EMM386, etc.
I use QEMM.
My latest example of this symptom is typical in its nonrepeatability:
[snip]
(FWIW: I have enough physical RAM that I don't need virtual memory;
so the problem isn't being caused by some specific sequence of page
faults that may vary when the user thinks nothing has changed.)
Same here (I think).
This has been my consistent experience with this problem over a period
of a couple of years. I simply cannot repeat the error reliabily,
and I've had lots of experience tracking down bugs.
Same here. Another data point...
Regards,
--
Rick Troxel Rick_Troxel@nih.gov rick@helix.nih.gov 301/496-4823
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