On Tue, 23 Mar 1999, Dr. Bill Studenmund wrote:

> On Tue, 23 Mar 1999, Frederick Bruckman wrote:
> > 
> > I haven't tried that. "options ZSTTY_RING_SIZE=4096" used to work for
> > me until very recently. (I'm running current.) With that, I was able
> > to set the speed to 57600 with nary a silo overflow on either Quadra,
> > the 630 or the 840AV. Something changed with current a couple of weeks
> > ago, and now I get them all the time. Experimenting with different
> > values for ZSTTY_RING_SIZE hasn't helped, and lowering the speed to
> > 38400, which used to be adequate, doesn't do it, either. :(
> 
> When did this start? ZSTTY_RING_SIZE really works for getting rid of
> floods, but it doesn't do much about silo overflows. Those come from
> something sitting at splhigh for too long.

It started sometime early this month.

> We have a tip-running-as-cu in the tree.

Hmm... I don't think I like tip's "cu." After making the link in the
obj directory,

	root-> ./cu -p modem
	tip: unknown host cu1200
	Bad flag -proot-> 
	root-> ./cu
	usage: cu telno [-t] [-s speed] [-a acu] [-l line] [-#]
	root-> ./cu -s 57600 -l /dev/tty00

And it just returns immediately. It seems to really want a phone
number as the first argument, which is bad when you simply want to
talk directly to the modem.