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From: pete@pelican.com (Pete Carah)
Subject: TTYHOG still...
To: bugs@FreeBSD.org
Date: Mon, 5 Jun 1995 16:05:34 -0700 (PDT)
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PLEASE PLEASE (OK, wait for release, maybe, but it is impossible to run
uucp on a fast link as things are) fix TTYHOG to be an option:

(or *better*, fix the real problem and make clist sizes dynamic; it is
ridiculous to make interactive opens have 16k ttyhog just to get uucp
to work on a single port.)

At 1024 I can sometimes get errors just from chat setting up a slip call.

Yes, I have crtscts set and it does work.  I still get the ****** ttyhog
error message.

Related to this:
***FLAME ON:
Also, don't insist in the man page and rc.serial that setting crtscts
is an application responsibility; it isn't.  It is a hardware
consideration and depends entirely on what is connected to the port;
the sysadmin knows which ports need it, and the setting needs to apply
to everything, even the shell and 'cat', for several.  The init+lock
device is the right thing, only it is documented rather negatively.  The
application (in this kind of case) has *no business whatever* knowing what
kind of device is connected; it only knows about data streams.
***FLAME OFF

-- Pete

--------------------------------------------------------------------------
/usr/src/sys/sys/tty.h:

 #define IBUFSIZ 384                     /* Should be >= max value of MIN. */
 #define OBUFSIZ 100
 
+#ifndef TTYHOG
 #define TTYHOG  1024 
+#endif

 #ifdef KERNEL 
 #define TTMAXHIWAT      roundup(2048, CBSIZE)
 #define TTMINHIWAT      roundup(100, CBSIZE)
-------------------------------------------------------------