From owner-freebsd-current Tue May 6 22:04:44 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.5/8.8.5) id WAA01420 for current-outgoing; Tue, 6 May 1997 22:04:44 -0700 (PDT) Received: from genesis.atrad.adelaide.edu.au (genesis.atrad.adelaide.edu.au [129.127.96.120]) by hub.freebsd.org (8.8.5/8.8.5) with ESMTP id WAA01414 for ; Tue, 6 May 1997 22:04:39 -0700 (PDT) Received: (from msmith@localhost) by genesis.atrad.adelaide.edu.au (8.8.5/8.7.3) id OAA18220; Wed, 7 May 1997 14:33:58 +0930 (CST) From: Michael Smith Message-Id: <199705070503.OAA18220@genesis.atrad.adelaide.edu.au> Subject: Re: Excessive tty-level buffer overflows In-Reply-To: <199705070407.XAA14409@zuhause.mn.org> from Bruce Albrecht at "May 6, 97 11:07:28 pm" To: bruce@zuhause.mn.org (Bruce Albrecht) Date: Wed, 7 May 1997 14:33:58 +0930 (CST) Cc: freebsd-current@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-current@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk Bruce Albrecht stands accused of saying: > In a five minute period while running uucp via an external sportster > 33K modem at 57.6 KB on /dev/cuaa1, I received over 123,000 tty-level > buffer overflows. This is a dual CPU Pentium Pro Tyan ATX 1668, > running in single CPU mode. What does this mean? Is it a shoddy > 16550 emulation? My kernel is from Saturday, or thereabouts. Please read the sio(4) manpage, which explains what a tty-level overflow is. I don't think it's the serial hardware, but you may have other problems. -- ]] 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 [[