From owner-freebsd-questions Sun Oct 15 21:06:59 1995 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.6.12/8.6.6) id VAA24748 for questions-outgoing; Sun, 15 Oct 1995 21:06:59 -0700 Received: from genesis.atrad.adelaide.edu.au (genesis.atrad.adelaide.edu.au [129.127.96.120]) by freefall.freebsd.org (8.6.12/8.6.6) with ESMTP id VAA24730 for ; Sun, 15 Oct 1995 21:06:49 -0700 Received: from msmith@localhost by genesis.atrad.adelaide.edu.au (8.6.9/8.6.9) id OAA06059; Mon, 16 Oct 1995 14:08:34 +0930 From: Michael Smith Message-Id: <199510160438.OAA06059@genesis.atrad.adelaide.edu.au> Subject: Re: Too many UUCP checksum errors! Help! To: raoul@cssc-syd.tansu.com.au (Raoul Golan) Date: Mon, 16 Oct 1995 14:08:33 +0930 (CST) Cc: freebsd-questions@FreeBSD.ORG In-Reply-To: <199510160039.KAA17797@kiwi.cssc-syd.tansu.com.au> from "Raoul Golan" at Oct 16, 95 10:39:18 am Content-Type: text Content-Length: 1424 Sender: owner-questions@FreeBSD.ORG Precedence: bulk Raoul Golan stands accused of saying: > If this is any help, I turned the uucico debugging on, and > the Debug file was left full of bad checksum messages. It also > listed the data it received at each step, and I found that there > were bytes missing from the stream... I could tell because > mail is usually sent as plain text, and I could see that > with a packet size of 64 around 10 bytes go missing, and > the next packet header is mistakenly taken to be data. I'm actually seeing a similar occurrence with a local ISP; they're losing characters on both input and output (under both 2.0.5 and 2.1-STABLE) on 16550 ports. The short-term fix for them is to disable the fifos and run as though they were '450s. (Set the flags value for the ports to 0x02) These 550's are on 4-port cards, no IRQ or port conflicts. The machine is a little starved for memory, but still generates _no_ console messages to explain this symptom. The UARTs are a mix of several different brands, so I'm not sure that this is a hardware bogon. > Raoul -- ]] Mike Smith, Software Engineer msmith@atrad.adelaide.edu.au [[ ]] Genesis Software genesis@atrad.adelaide.edu.au [[ ]] High-speed data acquisition and [[ ]] realtime instrument control (ph/fax) +61-8-267-3039 [[ ]] My car has "demand start" -Terry Lambert UNIX: live FreeBSD or die! [[