From owner-freebsd-stable@FreeBSD.ORG Thu Aug 10 13:08:54 2006 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0401F16A4DA for ; Thu, 10 Aug 2006 13:08:54 +0000 (UTC) (envelope-from dom@goodforbusiness.co.uk) Received: from mailhost.graphdata.co.uk (mailhost.graphdata.co.uk [195.12.22.194]) by mx1.FreeBSD.org (Postfix) with ESMTP id EA1E543D46 for ; Thu, 10 Aug 2006 13:08:50 +0000 (GMT) (envelope-from dom@goodforbusiness.co.uk) Received: from localhost (localhost [127.0.0.1]) by mailhost.graphdata.co.uk (Postfix) with ESMTP id 689DF114032 for ; Thu, 10 Aug 2006 14:08:49 +0100 (BST) X-Virus-Scanned: amavisd-new at graphdata.co.uk Received: from mailhost.graphdata.co.uk ([127.0.0.1]) by localhost (mailhost.graphdata.co.uk [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id wdzNXqQW4n99 for ; Thu, 10 Aug 2006 14:08:46 +0100 (BST) Received: from [192.168.0.86] (gdc083.internal.graphdata.co.uk [192.168.0.86]) by mailhost.graphdata.co.uk (Postfix) with ESMTP id 30BA1114026 for ; Thu, 10 Aug 2006 14:08:46 +0100 (BST) Message-ID: <44DB2FDD.60705@goodforbusiness.co.uk> Date: Thu, 10 Aug 2006 14:08:45 +0100 From: Dominic Marks User-Agent: Thunderbird 1.5.0.5 (X11/20060809) MIME-Version: 1.0 To: freebsd-stable@freebsd.org References: <496795293.20060809195310@pacific.net.id> <44D9ECB9.5020500@goodforbusiness.co.uk> <20060809171917.GA32202@localhost.localdomain> In-Reply-To: <20060809171917.GA32202@localhost.localdomain> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: Network often not responding X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 10 Aug 2006 13:08:54 -0000 Stanislaw Halik wrote: > On Wed, Aug 09, 2006, Dominic Marks wrote: >>> Aug 9 15:09:16 cache kernel: xl0: transmission error: 90 >>> Aug 9 15:09:16 cache kernel: xl0: tx underrun, increasing tx start >>> threshold to 120 bytes > >> dc%d: TX underrun -- increasing TX threshold The device generated a >> transmit underrun error while attempting to DMA and transmit a packet. >> This happens if the host is not able to DMA the packet data into the > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> NIC's FIFO fast enough. The driver will dynamically increase the > ~~~~~~~~~~~~~~~~~~~~~~ >> trans- mit start threshold so that more data must be DMAed into the >> FIFO before the NIC will start transmitting it onto the wire." > >> So it would seem like the card cannot keep pace with the system. What NICs > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> have you tried? > > Basing on the quoted text, isn't it the opposite? > Yep! I should read more than the first line on things, especially when quoting them to others :) Dom