From owner-freebsd-bugs@FreeBSD.ORG Fri Feb 11 02:20:10 2011 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 7E17E106566B for ; Fri, 11 Feb 2011 02:20:10 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id 372588FC16 for ; Fri, 11 Feb 2011 02:20:10 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.4/8.14.4) with ESMTP id p1B2KAu2042841 for ; Fri, 11 Feb 2011 02:20:10 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.4/8.14.4/Submit) id p1B2KAxk042840; Fri, 11 Feb 2011 02:20:10 GMT (envelope-from gnats) Resent-Date: Fri, 11 Feb 2011 02:20:10 GMT Resent-Message-Id: <201102110220.p1B2KAxk042840@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, Michiel Boland Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 56530106566B for ; Fri, 11 Feb 2011 02:10:42 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from red.freebsd.org (red.freebsd.org [IPv6:2001:4f8:fff6::22]) by mx1.freebsd.org (Postfix) with ESMTP id 4626D8FC08 for ; Fri, 11 Feb 2011 02:10:42 +0000 (UTC) Received: from red.freebsd.org (localhost [127.0.0.1]) by red.freebsd.org (8.14.4/8.14.4) with ESMTP id p1B2Af8C047512 for ; Fri, 11 Feb 2011 02:10:41 GMT (envelope-from nobody@red.freebsd.org) Received: (from nobody@localhost) by red.freebsd.org (8.14.4/8.14.4/Submit) id p1B2Af8J047511; Fri, 11 Feb 2011 02:10:41 GMT (envelope-from nobody) Message-Id: <201102110210.p1B2Af8J047511@red.freebsd.org> Date: Fri, 11 Feb 2011 02:10:41 GMT From: Michiel Boland To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Cc: Subject: kern/154667: link stage change on multicast join/leave (fxp) 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: Fri, 11 Feb 2011 02:20:10 -0000 >Number: 154667 >Category: kern >Synopsis: link stage change on multicast join/leave (fxp) >Confidential: no >Severity: serious >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Fri Feb 11 02:20:09 UTC 2011 >Closed-Date: >Last-Modified: >Originator: Michiel Boland >Release: -CURRENT >Organization: >Environment: FreeBSD charlemagne.boland.org 9.0-CURRENT FreeBSD 9.0-CURRENT #0: Fri Feb 11 02:27:17 CET 2011 root@charlemagne.boland.org:/usr/obj/usr/src/sys/CHARLEMAGNE amd64 >Description: Joining or leaving a multicast group causes a link flap on an fxp interface, leaving the interface down for about two seconds after the join/leave. Other network interfaces (only tested with re so far) don't appear to have this problem. As a result, multicast applications stop working (mplayer cannot play UDP multicast streams for example.) This appears to broken in -CURRENT somewhere between July 2010 and today. >How-To-Repeat: $ mtest j 239.0.0.1 fxp0 l 239.0.0.1 fxp0 /var/log/messages displays Feb 11 03:08:18 charlemagne kernel: fxp0: link state changed to DOWN Feb 11 03:08:20 charlemagne kernel: fxp0: link state changed to UP Feb 11 03:08:59 charlemagne kernel: fxp0: link state changed to DOWN Feb 11 03:09:01 charlemagne kernel: fxp0: link state changed to UP corresponding to the join/leave operations >Fix: >Release-Note: >Audit-Trail: >Unformatted: