[comp.unix.xenix] cu, uucp, kermit, hung processes

sbhattac@rnd.GBA.NYU.EDU (Shankar Bhattacharyya) (03/27/90)

I have recently inherited an Acer 386 machine running SCO Xenix 2.3.2,
and have been asked to get communications working on it, using cu/uucp,
as also C-kermit.

I have read the recent exchange on getting modems to work, but regret that
I still need help. I am no expert, as will be quite apparent.

1.Using cu, I have yet to reach the modem. It is connected to COM1, as tty1A,
  and all efforts to reach it so far have resulted in messages of the type
  "Cannot connect to device". I may have the words slightly wrong. At any
  rate, it does not complain that no such device exists. All the
  documentation from SCO says, "Connect to the line. Then ..... ," and the
  only problem anticipated seems to be a bad Devices entry, manifested by a
  "No devices available" message. I do not get such a message, (although
  I can provoke one) but I do not appear able to connect to the device.
  Sometimes I get hung, and cannot kill the process.

Before I began working with this machine, the modem had been attached to
tty7A, on a multiport board, and worked very erratically, if at all.
Typically, it dialed a number, and then dropped the line.

2.At the same time, I have been able to call out using kermit, although not
  reproducibly, via the present tty1A hookup. Usually, it hangs, and I
  cannot kill the kermit process. Kill -9 does no good. I can kill the
  parent shell, but the kermit process gets attached to init.

Does kermit expect tty1A (say) to have particular ownership and
permissions? What do I do about working this through? I am told that the
Kermit documentation is around, but not all of it seems accessible.


I would like to get both working, and would appreciate pointers on both,
including pointers to documentation which should/might suffice. While I
have worked with Unix (V.2 and BSD4.2/3), I have never worked with SCO
Xenix before, and I have never worked with *nix communications before.

Finally, how do the experts deal with hung processes? With numbers of
people writing code like crazy, rebooting is out. I would get
assassinated.  How long can you ignore hung processes?

Thanks for any help. If possible, may I request e-mail? I will put
together and post all helpful responses.

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Shankar Bhattacharyya, Information Systems, New York University
shankar@rnd.gba.nyu.edu
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