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From: walt@hisata.UUCP (Walt Hultgren)
Newsgroups: comp.sys.ncr
Subject: Re: ttyb weirdness
Summary: Maybe 2 processes reading ttyb?
Message-ID: <169@hisata.UUCP>
Date: 2 Feb 90 16:56:38 GMT
References: <272@psgdc>
Reply-To: walt@hisata.UUCP (Walt Hultgren)
Organization: Hultgren Information Systems, Atlanta, GA
Lines: 35

In article <272@psgdc> rg@psgdc (Dick Gill) writes:
>I have a client experiencing some real weirdness in connection
>with the ttyb port.  The configuration is a 32/650 (2.01.01)
>...

I don't know if this is relevant, but I have had similar problems logging into
User-ID "sa" on ttyb on a Tower 1632.  It was happening some time ago (at
least one release back), and since I stumbled on the work-around, I haven't
seen it since.

On occasion, when I logged into sa by using the command "login sa" from the
shell on another User-ID, the system would appear to recognize only every
other character.  I found that if I hit every key twice, things more or less
worked.

When this problem was occurring, a ps -ef from another terminal would show
that there were two separate sa processes with different process ID's listed
as running on ttyb.  I don't think there were 2 getty's, but everything else
was duplicated.  I hypothesized that each process was getting every other
character from the terminal.

The problem seemed to occur only when I used "login sa" to get to sa, though
not always.  It never occurred if I first logged off of the current User-ID
by hitting ^D, then entered "sa" to the login prompt.

Since I use sa primarily for operations that require going to single-user or
stopping the system, I only use sa on ttyb.  So, I don't know if the problem
was with sa or ttyb.  Since the ^D method has continued to work, I've never
investigated it further.  Hope this helps.

Walt.

Walt Hultgren
Hultgren Information Systems, P. O. Box 386, Tucker, Georgia  30085  USA
Voice: +1 404 564 4707     UUCP: ...!{most_backbones}!gatech!hisata!walt