From owner-freebsd-stable@FreeBSD.ORG Tue Jul 26 18:33:59 2005 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 E901016A41F for ; Tue, 26 Jul 2005 18:33:58 +0000 (GMT) (envelope-from howells@kde.org) Received: from mail.devrandom.org.uk (devrandom.plus.com [81.174.255.33]) by mx1.FreeBSD.org (Postfix) with ESMTP id 3C12D43D46 for ; Tue, 26 Jul 2005 18:33:58 +0000 (GMT) (envelope-from howells@kde.org) Received: from localhost (localhost [127.0.0.1]) by mail.devrandom.org.uk (Postfix) with ESMTP id B2D2A79CE2 for ; Tue, 26 Jul 2005 19:33:52 +0100 (BST) Received: from mail.devrandom.org.uk ([127.0.0.1]) by localhost (mail.devrandom.org.uk [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 74597-04 for ; Tue, 26 Jul 2005 19:33:50 +0100 (BST) Received: from webmail.devrandom.org.uk (frodo.devrandom.org.uk [81.174.255.33]) by mail.devrandom.org.uk (Postfix) with ESMTP id A30F179C01 for ; Tue, 26 Jul 2005 19:33:50 +0100 (BST) Received: from 192.168.1.190 (SquirrelMail authenticated user chris@chrishowells.co.uk) by webmail.devrandom.org.uk with HTTP; Tue, 26 Jul 2005 19:33:50 +0100 (BST) Message-ID: <1522.192.168.1.190.1122402830.squirrel@webmail.devrandom.org.uk> In-Reply-To: <9B5AF38C-0525-44B0-80FD-1EBAB4B31CF4@obmail.net> References: <4309.192.168.1.190.1122341800.squirrel@webmail.devrandom.org.uk> <20050726021340.5410A2073@towerrecords.minidns.net> <1904.192.168.1.190.1122383968.squirrel@webmail.devrandom.org.uk> <6.2.1.2.0.20050726092241.055c2620@64.7.153.2> <2294.192.168.1.190.1122385648.squirrel@webmail.devrandom.org.uk> <3146.192.168.1.190.1122393780.squirrel@webmail.devrandom.org.uk> <9B5AF38C-0525-44B0-80FD-1EBAB4B31CF4@obmail.net> Date: Tue, 26 Jul 2005 19:33:50 +0100 (BST) From: "Chris Howells" To: freebsd-stable@freebsd.org User-Agent: SquirrelMail/1.4.4 MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Priority: 3 (Normal) Importance: Normal X-Virus-Scanned: amavisd-new at devrandom.org.uk Subject: Re: em(4) stops passing data 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: Tue, 26 Jul 2005 18:33:59 -0000 On Tue, July 26, 2005 6:03 pm, Michael Conlen said: > I often find that if I have a cable that is less than perfect the > card will seem to work but with some heavy load the switch takes the > port down and it stays down until I ifconfig down & up the interface. > In every instance replacing the cable takes care of the problem. Ahhhhhhh. That wasn't quite the cause -- I'd already tried quite a few cat 5e cables -- but it was related to the switch. After messing around for very nearly 24 hours I've learn an important rule. Don't put a gigabit switch near, or on top of, a 1200VA UPS. Judging by the effect they have on a monitor they produce some pretty hefty electro-magnetic fields. Thanks a lot for the help all, apologies for the noise :( -- Cheers, Chris Howells -- howells@kde.org Web: http://www.kde.org.uk, PGP ID: 0x33795A2C KDE/Qt Developer: http://www.kde.org