PPP/Modem problems - (was:Linux 2.2.15pre4)

Dom Ene 23 00:34:52 CST 2000

ttyS1 is a Zoom K56flex modem, flash upgraded to V.90. I've used it happily
for the last 2 years (except for a short period after I wiped the flash memory
:-) ), but more heavily recently, I don't have an obvious datapoint on when
the problem started.

The card is ISA PnP capable, but that's disabled so it should look like a
16550 UART serial port on irq-3. /proc/tty/driver/serial agrees with me on
this.

I don't remember seeing the problem before I started using ppp-2.3.10, but
that probably coincided with kernel changes and a RedHat 6.0 upgrade :-) I
have tried kernels back down to 2.2.11 with the same problems, but don't have
the sources/patches handy for anything earlier.

Is there any extra debugging I can enable in pppd or the kernel ? Perhaps I'll
just cause many dial-up/hangups manually to see if I can record an Oops -
Assuming there is one... Hints on how to pin this down are welcome.

Thanks,
Steve

Alan Cox wrote:
> 
> > dynamic dial-up. Somewhere near the syslog event:
> >       "Connect: ppp0 <--> /dev/ttyS1"
> > I get a total hang. Magic-Sysrq does seem to work, but it normally happens
> > with the console blanked, and nothing is un-blanking it so no Oops!
> 
> That sounds totally unrelated. What board, is ttyS1 an onboard serial port
> or an add on card, or a modem card etc ?
> 
> ---

--
Steve Davies                   steve en one47.demon.co.uk
One 47 Contracting Limited     http://www.one47.demon.co.uk

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