From owner-freebsd-hackers Mon Oct 27 06:12:44 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id GAA21687 for hackers-outgoing; Mon, 27 Oct 1997 06:12:44 -0800 (PST) (envelope-from owner-freebsd-hackers) Received: from crh.cl.msu.edu (crh.cl.msu.edu [35.8.1.24]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id GAA21679 for ; Mon, 27 Oct 1997 06:12:41 -0800 (PST) (envelope-from henrich@crh.cl.msu.edu) Received: (from henrich@localhost) by crh.cl.msu.edu (8.8.5/8.8.5) id JAA09275; Mon, 27 Oct 1997 09:12:35 -0500 (EST) Message-ID: <19971027091235.60825@crh.cl.msu.edu> Date: Mon, 27 Oct 1997 09:12:35 -0500 From: Charles Henrich To: Don Lewis Cc: Matt Thomas , Jaye Mathisen , freebsd-hackers@FreeBSD.ORG Subject: Re: de0 errors References: <199710271233.EAA22692@salsa.gv.tsc.tdk.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.84 In-Reply-To: <199710271233.EAA22692@salsa.gv.tsc.tdk.com>; from Don Lewis on Mon, Oct 27, 1997 at 04:33:51AM -0800 X-Operating-System: FreeBSD 2.2.2-RELEASE X-PGP-Fingerprint: 1024/F7 FD C7 3A F5 6A 23 BF 76 C4 B8 C9 6E 41 A4 4F Sender: owner-freebsd-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk On the subject of Re: de0 errors, Don Lewis stated: > On Oct 23, 7:51am, Matt Thomas wrote: > } Subject: Re: de0 errors > } At 12:57 AM 10/23/97 -0400, Charles Henrich wrote: > } >After moving to 2.2.5-RELEASE im seeing: > } > > } >Oct 23 00:32:12 msunews /kernel: ccd0-3: Concatenated disk drivers > } >Oct 23 00:35:45 msunews /kernel: de0: abnormal interrupt: transmit underflow > } >(raising TX threshold to 96|256) > } >Oct 23 00:36:01 msunews /kernel: de0: abnormal interrupt: transmit underflow > } >(raising TX threshold to 8|512) > } >Oct 23 00:37:41 msunews /kernel: de0: abnormal interrupt: transmit underflow > } >(raising TX threshold to 1024) > } >Oct 23 00:55:14 msunews /kernel: de0: abnormal interrupt: transmit underflow > } >(switching to store-and-forward mode) > } > > } >Any ideas? Are these informational, or are they bad? > } > } they are informational. > > In the sense that everything is working, but if you're seeing transmit > underflows even when the TX threshold has been set to 1024, then I suspect > you'll have a real problem getting anywhere near full performance out > of the card. Can you suggest any debugging tips for isolating and fixing this problem? Just using FTP between two hosts on the 100mbit net I see 2-3MB/sec and receive at about half that. However this system is also a very busy news server. I wish FreeBSD had a top or systat function that showed network traffic in K/Sec. -Crh Charles Henrich Michigan State University henrich@msu.edu http://pilot.msu.edu/~henrich