From owner-freebsd-bugs@FreeBSD.ORG Sun Mar 12 17:41:09 2006 Return-Path: X-Original-To: freebsd-bugs@hub.freebsd.org Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 611C416A41B for ; Sun, 12 Mar 2006 17:40:52 +0000 (GMT) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9A69C43D53 for ; Sun, 12 Mar 2006 17:40:51 +0000 (GMT) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.13.4/8.13.4) with ESMTP id k2CHepAl005606 for ; Sun, 12 Mar 2006 17:40:51 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.13.4/8.13.4/Submit) id k2CHep81005605; Sun, 12 Mar 2006 17:40:51 GMT (envelope-from gnats) Resent-Date: Sun, 12 Mar 2006 17:40:51 GMT Resent-Message-Id: <200603121740.k2CHep81005605@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Stephen Trovato Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7CFDA16A404 for ; Sun, 12 Mar 2006 17:36:59 +0000 (GMT) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (www.freebsd.org [216.136.204.117]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2AD6C43D4C for ; Sun, 12 Mar 2006 17:36:59 +0000 (GMT) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (localhost [127.0.0.1]) by www.freebsd.org (8.13.1/8.13.1) with ESMTP id k2CHawIx078559 for ; Sun, 12 Mar 2006 17:36:58 GMT (envelope-from nobody@www.freebsd.org) Received: (from nobody@localhost) by www.freebsd.org (8.13.1/8.13.1/Submit) id k2CHawv5078558; Sun, 12 Mar 2006 17:36:58 GMT (envelope-from nobody) Message-Id: <200603121736.k2CHawv5078558@www.freebsd.org> Date: Sun, 12 Mar 2006 17:36:58 GMT From: Stephen Trovato To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-2.3 Cc: Subject: kern/94390: poor network performance after promiscuous mode is enabled & disabled X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 12 Mar 2006 17:41:09 -0000 >Number: 94390 >Category: kern >Synopsis: poor network performance after promiscuous mode is enabled & disabled >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sun Mar 12 17:40:50 GMT 2006 >Closed-Date: >Last-Modified: >Originator: Stephen Trovato >Release: 6.0-RELEASE >Organization: Diocese of Columbus Dept for Ed >Environment: FreeBSD serenity.localdomain 6.0-RELEASE FreeBSD 6.0-RELEASE #0: Wed Nov 2 19:07:38 UTC 2005 root@rat.samsco.home:/usr/obj/usr/src/sys/GENERIC amd64 >Description: Enabling promiscuous mode causes a permanent network performance drop even after it is turned off. Hardware description: K8M800-M7A motherboard Sempron 2800+ w/amd64 embedded VIA 10/100 (see below) dmesg output: vr0: port 0xdc00-0xdcff mem 0xf6001000-0xf60010ff irq 23 at device 18.0 on pci0 miibus0: on vr0 rlphy0: on miibus0 rlphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto vr0: Ethernet address: 00:14:2a:f5:3a:03 ifconfig output: vr0: flags=8843 mtu 1500 inet6 fe80::214:2aff:fef5:3a03%vr0 prefixlen 64 scopeid 0x1 inet X.X.X.131 netmask 0xffffff00 broadcast X.X.X.255 ether 00:14:2a:f5:3a:03 media: Ethernet autoselect (100baseTX ) status: active >How-To-Repeat: Steps to reproduce: 1) ifconfig vr0 promisc 2) ifconfig vr0 -promisc 3) Network performance is now half of what it was >Fix: Bringing the interface down and back up with ifconfig does not resolve the problem, but a reboot does. >Release-Note: >Audit-Trail: >Unformatted: