ibook ttyS0 (modem), and pppd problem, linux-2.2.17pre20ben2

ibook ttyS0 (modem), and pppd problem, linux-2.2.17pre20ben2

[Conrad H Ziesler]

The first time i run pppd after reboot, everything works great.

however, if the remote host abruptly hangs up, then all future pppd
instances yield the following trace in syslog:

Oct  7 18:35:15 mwatt pppd[7318]: pppd 2.3.11 started by root, uid 0
Oct  7 18:35:19 mwatt pppd[7318]: Hangup (SIGHUP)
Oct  7 18:35:19 mwatt pppd[7318]: Connect script failed

that is, pppd aborts without ever running chat.
nothing i seem to do fixes this except reboot.

note: if pppd exits cleanly from a session, then the next time it runs has
no problem, however if the link gets disrupted, then the next (and all
future) times it fails to work.

i'm guessing there is some state in the serial driver that
doesn't get cleared in all cases, or some such...

this has been a problem in other previous kernels i have used, however
specifically, 2.2.17pre20ben2 has this problem.

thanks,
--conrad


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Re: ibook ttyS0 (modem), and pppd problem, linux-2.2.17pre20ben2

[Olaf Hering]

On Sun, Oct 08, Conrad H Ziesler wrote:

>
> The first time i run pppd after reboot, everything works great.
>
> however, if the remote host abruptly hangs up, then all future pppd
> instances yield the following trace in syslog:
>
> Oct  7 18:35:15 mwatt pppd[7318]: pppd 2.3.11 started by root, uid 0
> Oct  7 18:35:19 mwatt pppd[7318]: Hangup (SIGHUP)
> Oct  7 18:35:19 mwatt pppd[7318]: Connect script failed
>
> that is, pppd aborts without ever running chat.
> nothing i seem to do fixes this except reboot.
>
> note: if pppd exits cleanly from a session, then the next time it runs has
> no problem, however if the link gets disrupted, then the next (and all
> future) times it fails to work.
>
> i'm guessing there is some state in the serial driver that
> doesn't get cleared in all cases, or some such...

How looks the init string for the modem and does it work in MacOS?
If yes, what modem script do you use in MacOS?



Gruss Olaf

--
 $ man clone

BUGS
       Main feature not yet implemented...

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Re: ibook ttyS0 (modem), and pppd problem, linux-2.2.17pre20ben2

[Halfmann, Klaus]

Conrad H Ziesler [mailto:cziesler@umich.edu] wrote:

> The first time i run pppd after reboot, everything works great.
>
> however, if the remote host abruptly hangs up, then all future pppd
> instances yield the following trace in syslog:
>
> Oct  7 18:35:15 mwatt pppd[7318]: pppd 2.3.11 started by root, uid 0
> Oct  7 18:35:19 mwatt pppd[7318]: Hangup (SIGHUP)
> Oct  7 18:35:19 mwatt pppd[7318]: Connect script failed
>
> that is, pppd aborts without ever running chat.
> nothing i seem to do fixes this except reboot.

I have just the same problem and help myself as follows:
I compiled macserial as a module. So when this problem
hits me I do a rmmod/insmod on macserial and everything
is fine again.

This problem appeard in all 2.2 kernels I had until now.
Of course this is a bug in the macserial driver
(and it may already be known) ...

|       |                  Klaus Halfmann       khalfmann@libra.de
|       |
|    i  | --.  r---  -- |  Libra Software GmbH  Tel +49 (0)621 41997-15
|    |  b-- |  |    a-- |  Erzbergerstr. 17     Fax +49 (0)621 41997-30
L--- |  --- |  |    .---.  68165 Mannheim

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