From owner-freebsd-hackers Thu Apr 10 17:16:38 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id RAA13159 for hackers-outgoing; Thu, 10 Apr 1997 17:16:38 -0700 (PDT) Received: from genesis.atrad.adelaide.edu.au (genesis.atrad.adelaide.edu.au [129.127.96.120]) by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id RAA13154 for ; Thu, 10 Apr 1997 17:16:34 -0700 (PDT) Received: (from msmith@localhost) by genesis.atrad.adelaide.edu.au (8.8.5/8.7.3) id JAA07258; Fri, 11 Apr 1997 09:41:36 +0930 (CST) From: Michael Smith Message-Id: <199704110011.JAA07258@genesis.atrad.adelaide.edu.au> Subject: Re: Bad speed on modem connected to isdn pot In-Reply-To: from Raul Zighelboim at "Apr 10, 97 01:34:27 pm" To: mango@staff.communique.net (Raul Zighelboim) Date: Fri, 11 Apr 1997 09:41:36 +0930 (CST) Cc: mnewton@newland.com, hackers@freebsd.org X-Mailer: ELM [version 2.4ME+ PL28 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk Raul Zighelboim stands accused of saying: > > Could it be that your serial port is a 8550UART ? and therefore, cannot > handle more thatn 9600 reliably ? Uhh, the 8550 is a VAX; it probably uses 2681 UARTs (or something even more weird). You may have meant 8250 8) Unfortunately, you are both barking up the wrong tree. If you were to _read_the_sio_manpage_, you would see : DIAGNOSTICS sio%d: silo overflow. Problem in the interrupt handler. sio%d: interrupt-level buffer overflow. Problem in the bottom half of the driver. sio%d: tty-level buffer overflow. Problem in the application. Input has arrived faster than the given module could process it and some has been lost. ie. it has nothing to do with baudrate conversion, just with whatever is actually listening to the line. > >-----Original Message----- > >From: Malcolm newton [SMTP:mnewton@newland.com] > >Sent: Thursday, April 10, 1997 12:39 PM > >To: hackers > >Subject: Bad speed on modem connected to isdn pot > > > >I have a 28.8 modem attached to the analog side of a 64kb isdn line. > >The getty is set at 57600. On incoming calls I get tty-level buffer > >overflows. > >I think its becaus the 64kb isdn line when converted to analog is > >transmitting at 64k > >and 57600 is not fast enough for it. I've bumped it up to 115200 but > >that doesn't work > >Whats the next valid speed that would cope with 64k. is 65536 a valid > >speed. The modem works fine on a regular bell line ?? > > << File: ATT00335.html >> > -- ]] Mike Smith, Software Engineer msmith@gsoft.com.au [[ ]] Genesis Software genesis@gsoft.com.au [[ ]] High-speed data acquisition and (GSM mobile) 0411-222-496 [[ ]] realtime instrument control. (ph) +61-8-8267-3493 [[ ]] Unix hardware collector. "Where are your PEZ?" The Tick [[