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Date:      Mon, 14 Jul 1997 17:46:34 -0700
From:      Ernest Hua <hua@chromatic.com>
To:        David Gilbert <dgilbert@jaywon.pci.on.ca>
Cc:        bugs@freebsd.org
Subject:   Re: USR Imodem hangs kernel? 
Message-ID:  <199707150046.RAA26308@server1.chromatic.com>
In-Reply-To: Your message of "Wed, 25 Jun 1997 01:24:40 EDT." <199706250524.BAA01086@repeat.pci.on.ca> 

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> 	I've got a friend with a USR Imodem (internal).  Now... the
> modem is enough like a serial port that I can cu to it.  I'm having
> problems actually getting it to connect (it says it does, but I can't
> get it to respond after connecting) and often, even when just talking
> to the modem with cu, I hang the whole machine.
> 
> 	Known problem?  Bug?  Imodem feature?

Have you received a reply yet?

I am experiencing the same problem on 2.2.1-RELEASE and 2.2.2-RELEASE.

My symptoms are varied.  For 2.2.1-RELEASE, I rarely get the hang, but
it does happen.  For 2.2.2-RELEASE, I get the hang almost immediately
upon talking to the modem with the GENERIC kernel.  When I added the
plug-and-play patches, it did not change the characteristics of the
behavior, but if I remove the plug-and-play soundcard, the likelihood
of the hang, decreases significantly (it will EVENTUALLY hang, but it
takes a much longer session).  I was also under the impression that
using a faster sio speed (115200 versus 38400 or 57600) will decrease
the likelihood, but I do not have enough data points to substantiate
that.

On precisely the same system (with and without the soundcard), I have
zero problems with Win95, so it is highly unlikely that the problem is
with the hardware.

Ern

-- 
Ernest Hua, Software Sanitation Engineer/Chief Cut And Paste Officer
Chromatic Research, 615 Tasman Drive, Sunnyvale, CA 94089-1707
Phone: 408 752-9375, Fax: 408 752-9301, E-Mail: hua@chromatic.com





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