From: sh0002@medtronic.COM (Scott Hou) Subject: Re: Trouble with serial and 0.99-Pl5 Date: Wed, 24 Feb 1993 21:18:52 GMT
This problem is called a "Deadly Embrace" which has happened to a few other Unix
machines if modems are not configured properly. AIX on RS6000 did not even
give up after awhile, thus locking out all users (due to the tight loop) until
you physically pulled the modem off. Ouch!
william E Davidsen (davidsen@ariel.crd.GE.COM) wrote:
: In article <1993Feb21.182416.121@pandora.demon.co.uk>, martin@pandora.demon.co.uk (Martin White) writes:
: | Have you turned echo off on your modem by sending it
: |
: | ATE0Q1
: |
: | If you haven't, then linux will output a logon prompt, which the modem
: | echos back, so Linux thinks it has a password and an invalid login attempt.
: | Linux will sit in a nice little loop chatting to the modem like this, but
: | eventually gives up.
: A useful suggestion, but if Linux is putting out a login prompt before
: the CD comes on, he's right, the driver is totally broken. I haven't
: tried this yet, but if it were that broken I'm sure everyone would be
: complaining.
: The beauty of FAS is that when you open the incoming device you don't
: get a response until the CD comes true, so that the login prompt goes to
: the caller, rather than the bitbucket. Hopefully there's some other
: problem, because operating with getty continuously timing out is not a
: desirable alternative to making it work right.
: --
: bill davidsen, GE Corp. R&D Center; Box 8; Schenectady NY 12345
: Windows NT is a *great* program!
: It's everything CP/M should have been all along.