From owner-freebsd-isp Sun Mar 31 17:14:58 2002 Delivered-To: freebsd-isp@freebsd.org Received: from misery.sdf.com (misery.sdf.com [207.200.153.226]) by hub.freebsd.org (Postfix) with ESMTP id 0457F37B419 for ; Sun, 31 Mar 2002 17:14:55 -0800 (PST) Received: from tom (helo=localhost) by misery.sdf.com with local-esmtp (Exim 2.12 #1) id 16rpbF-0002sJ-00; Sun, 31 Mar 2002 16:23:05 -0800 Date: Sun, 31 Mar 2002 16:23:03 -0800 (PST) From: Tom Samplonius To: Peter Brezny Cc: freebsd-isp@freebsd.org Subject: Re: transmit underflow. In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org On Sun, 31 Mar 2002, Peter Brezny wrote: > Hi everyone, > > I've got two digital 4 port Ethernet cards in a system acting as a router. > I get a lot of these after startup. What does all this mean? > > Mar 31 19:44:59 zeus /kernel: de0: abnormal interrupt: transmit underflow > (raising TX threshold to 128|512) See the archives. The cards are starving for transmit data, so the threshold is increased. You might want to use a motherboard with a better PCI implementation, or multiple PCI buses. Lots of server motherboards have two to three PCI buses. Or, use 64bit PCI motherboard and a single GigE card with VLANs instead. > I've also recently had a problem with 'too many stray IRQ's' Remove or disable the device that is doing that. > Which effectively took one of these interfaces down. These digital cards > run rather hot. Any suggestions on multiport network cards? Better cooling perhaps? 16 ethernet ports is going to generate heat no matter how you do it. > Thanks, > > Peter Brezny > Skyrunner.net > Tom To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message