Re: [hylafax-users] Modem hung indefinately... saga continues

[<KAbrahamsen@wrightgroup.com>]

In the HylaFAX mailing list archive (last year?) there was mention of a
possible problem with inbound faxing w/Comtrol Rocketports. The posting said
the Comtrol's used polling across the IO ports and incoming data might be
lost if there was too much processing going on preventing timely polling of
all lines (ie; buffer overflow??). This seemed to be a trade off with
Comtrol not using an IRQ.

Has anyone verified these statements or have other input RE: how well the
Control Rocketport cards work with HylaFAX??

Thanks.
ken
-----Original Message-----
From: Alastair Broom [mailto:abroom@valleyt.co.uk]
Sent: Friday, July 21, 2000 2:06 AM
To: hylafax-users@hylafax.org
Subject: Re: [hylafax-users] Modem hung indefinately... saga continues


On Thu, 20 Jul 2000, Brendin Emslie wrote:

> This may have something to do with the volume of faxes that I am pumping
out
> (1300 in a 10 hour period on 4 lines).  How many are you sending out?
> I am running my modems with a CLASS1 config file.  How about you?
>
At this site, maybe 30-50 faxes per day, say 3-25 pages each (Purchase
Orders) on a single external Multitech MT2834ZDXI running in Class 2

> If there was only some way to get rid of these jobs without rebooting.
> This definately should not be required especially under a UNIX OS.
> 
Yup, I agree, rebooting is a real pain.
There's a later message on the list from Tim Rice suggesting a patch
available for SCO to work round a problem in SCO's libraries - that'll
help me (though this site's hylafax only fails every 30days or so, so
it'll be a while 'til we know that the patch worked...), but doesn't help
you much.

> I am running on Redhat Linux 6.1 with 3COM 56K external modems and a
> Comtrol 8 Port Rocket port isa serial card.
>
Because the faxsend jobs can't be killed, it suggests the *kernel* is
waiting on something happening (as opposed to the program waiting, which
would respond to the kill).  Perhaps there is a problem with the drivers
for the Comtrol 8 Port Rocket card ?  Is there a newer version of 
the drivers available ?
Or maybe you could try switching the flow-control scheme you have for
talking to the modems (from xon/xoff to rts/cts or vice versa) as maybe
the tty driver gets confused by whichever scheme you're using if a lot of
timely data is being pumped out (as is the case with Class 1)

Hope this helps...
--
Alastair Broom               ValleyT Ltd, Edinburgh, Bonnie Scotland
abroom@valleyt.co.uk




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