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user/1018: user-ppp's chat_write intermittent failure
- To: firstname.lastname@example.org
- Subject: user/1018: user-ppp's chat_write intermittent failure
- From: Ligon Durham <ldurham@SPSU.edu>
- Date: Mon, 20 Dec 1999 23:05:20 -0500 (EST)
>Synopsis: user-ppp's chat_write intermittent failure
>Arrival-Date: Mon Dec 20 21:10:01 MST 1999
System : OpenBSD 2.6
Machine : i386
I started ppp manually. After setting the device and speed, I
attempted to start term. The program returned to packet mode
instead of starting term. I waited a few seconds and started
term again. After a few seconds, term started correctly.
Sometimes, term starts correctly the first time.
Afterwards, I started ppp manually and used a dial script instead
of term. Sometimes, I repeatedly get:
tun0: Error: chat_write: Input/output error
when starting the dial script. I type Ctrl-C to interrupt the dial
script, then wait a few seconds, and try again.
dial usually works the second time around.
The problem is intermittent and cannot always be repeated. I have had
the most success at repeating it through the following interaction:
Working in interactive mode
Using interface: tun0
ppp ON myname set device /dev/cua02
ppp ON myname set speed 57600
ppp ON myname term
deflink: Entering terminal mode on /dev/cua02
Type `~?' for help
ppp ON myname /* on error packet mode line */
I can never seem to get it to repeat when I want to analyze it, how
To workaround it, I just wait a few seconds and try term or dial
again. I have gotten the error with two different serial ports and
two different modems so I do not think it is hardware.