From owner-freebsd-questions@FreeBSD.ORG Thu Nov 6 03:29:22 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 0102616A4CE for ; Thu, 6 Nov 2003 03:29:22 -0800 (PST) Received: from mail.wbtsystems.com (onyx.dublin.wbtsystems.com [193.120.231.6]) by mx1.FreeBSD.org (Postfix) with ESMTP id 064C143FE9 for ; Thu, 6 Nov 2003 03:29:20 -0800 (PST) (envelope-from barry.byrne@wbtsystems.com) Received: from spiral ([193.120.231.190]) (authenticated bits=0) by mail.wbtsystems.com (8.12.10/8.12.10) with ESMTP id hA6BTGeR001092 for ; Thu, 6 Nov 2003 11:29:16 GMT From: "Barry Byrne" To: Date: Thu, 6 Nov 2003 11:29:16 -0000 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.6604 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 Importance: Normal In-Reply-To: X-WBT-Authenticated-User: bb X-Scanned-By: MIMEDefang 2.38 Subject: RE: TX Threshold & TX Underrun ??? 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, 06 Nov 2003 11:29:22 -0000 > -----Original Message----- > From: owner-freebsd-questions@freebsd.org > [mailto:owner-freebsd-questions@freebsd.org]On Behalf Of Greg Bernard > Sent: 06 November 2003 11:21 > I have this message that has showed up in the "security run output" > > I don't really know what It means ? > > > backup.xxx.fr kernel log messages: > >> dc0: TX underrun -- increasing TX threshold > Any idea ? man 4 dc 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. Don't think you should be too concerned about this. - Barry