From owner-freebsd-questions@FreeBSD.ORG Thu May 29 08:05:31 2003 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6010C37B401 for ; Thu, 29 May 2003 08:05:31 -0700 (PDT) Received: from cobbled.net (p56-156.as1.sla.galway.eircom.net [159.134.56.156]) by mx1.FreeBSD.org (Postfix) with ESMTP id E9CC943F75 for ; Thu, 29 May 2003 08:05:27 -0700 (PDT) (envelope-from fergus@cobbled.net) Received: from pooh.cobbled.net (localhost [127.0.0.1]) by pooh.cobbled.net (8.12.6/8.12.6) with ESMTP id h4TF2tIh002309 for ; Thu, 29 May 2003 16:02:55 +0100 (BST) (envelope-from fergus@pooh.cobbled.net) Received: (from fergus@localhost) by pooh.cobbled.net (8.12.6/8.12.6/Submit) id h4TF0Kqb002291 for questions@freebsd.org; Thu, 29 May 2003 16:00:20 +0100 (BST) Resent-Message-Id: <200305291500.h4TF0Kqb002291@pooh.cobbled.net> Date: Thu, 22 May 2003 16:08:37 +0100 From: Fergus Cameron To: questions@freebsd.org Message-ID: <20030522150837.GA3250@pooh.cobbled.net> Mail-Followup-To: Fergus Cameron , questions@freebsd.org Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="pWyiEgJYm5f9v55/" Content-Disposition: inline Resent-From: fergus@cobbled.net Resent-Date: Thu, 29 May 2003 16:00:20 +0100 Resent-To: questions@freebsd.org Subject: SIO buffer overflows X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 May 2003 15:05:31 -0000 --pWyiEgJYm5f9v55/ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline i've been running BSD as a gateway on my old i486 for a few years now and have just reconnected my modem (was on DSL). unfortunately there is a constant problem with sio buffer overflows. not surprising i hear you say as it's in the bugs section of sio(4). still, the system is running 5.0 release well and i'm reluctant to decomission it over something trivial. anyone ideas on how to tune to eliminate the overflows? failing that what version would i need to drop back to 4, 3? i don't remember the problem existing in late 4 (4.6-4.7) but cannot verify 100% at the moment. i've attached the dmesg output including errors from sio1@57600. the test was a simple -- tip to the modem and then ati4 to generate enough output for the overflow. thanks for any advice. --pWyiEgJYm5f9v55/ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=dmesg Copyright (c) 1992-2003 The FreeBSD Project. Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 The Regents of the University of California. All rights reserved. FreeBSD 5.0-CURRENT #2: Mon Mar 31 23:27:49 GMT 2003 fergus@eyore.cobbled.net:/usr/share/software/binary/FreeBSD/build/usr/share/software/source/FreeBSD/FUTURE/sys/TIGGER Preloaded elf kernel "/boot/kernel/kernel" at 0xc0386000. Timecounter "i8254" frequency 1193182 Hz CPU: i486DX (486-class CPU) real memory = 37748736 (36 MB) avail memory = 32931840 (31 MB) Allocating major#253 to "net" Allocating major#252 to "g_ctl" npx0: on motherboard npx0: INT 16 interface isa0: on motherboard orm0: