From owner-freebsd-bugs@FreeBSD.ORG Fri Dec 21 11:00:01 2007 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 5A8F716A41A for ; Fri, 21 Dec 2007 11:00:01 +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 310C313C461 for ; Fri, 21 Dec 2007 11:00:01 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.14.2/8.14.2) with ESMTP id lBLB01H8071210 for ; Fri, 21 Dec 2007 11:00:01 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.2/8.14.1/Submit) id lBLB01t9071209; Fri, 21 Dec 2007 11:00:01 GMT (envelope-from gnats) Resent-Date: Fri, 21 Dec 2007 11:00:01 GMT Resent-Message-Id: <200712211100.lBLB01t9071209@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, Pekka Savola Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 09E6216A475 for ; Fri, 21 Dec 2007 10:51:15 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (www.freebsd.org [IPv6:2001:4f8:fff6::21]) by mx1.freebsd.org (Postfix) with ESMTP id E940C13C4D5 for ; Fri, 21 Dec 2007 10:51:14 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (localhost [127.0.0.1]) by www.freebsd.org (8.14.2/8.14.2) with ESMTP id lBLAoo5p038419 for ; Fri, 21 Dec 2007 10:50:50 GMT (envelope-from nobody@www.freebsd.org) Received: (from nobody@localhost) by www.freebsd.org (8.14.2/8.14.1/Submit) id lBLAooK0038418; Fri, 21 Dec 2007 10:50:50 GMT (envelope-from nobody) Message-Id: <200712211050.lBLAooK0038418@www.freebsd.org> Date: Fri, 21 Dec 2007 10:50:50 GMT From: Pekka Savola To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Cc: Subject: kern/118927: em(4) broken: link state changed to DOWN (/UP), link states coalesced errors 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, 21 Dec 2007 11:00:01 -0000 >Number: 118927 >Category: kern >Synopsis: em(4) broken: link state changed to DOWN (/UP), link states coalesced errors >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Fri Dec 21 11:00:00 UTC 2007 >Closed-Date: >Last-Modified: >Originator: Pekka Savola >Release: 6.3-PRERELEASE >Organization: >Environment: FreeBSD sixpack.funet.fi 6.3-PRERELEASE FreeBSD 6.3-PRERELEASE #13: Fri Dec 21 10:18:44 EET 2007 root@sixpack.funet.fi:/usr/obj/usr/src/sys/SIXPACK i386 >Description: After upgrading via sources from 6.2-STABLE (Aug 7) to 6.3-PRERELEASE (snapshots from about November 29 and December 21 tested), em2 interface started spewing out the following ad infinitum: em2: 32 link states coalesced em2: link state changed to UP em2: 19 link states coalesced em2: link state changed to DOWN em2: 3 link states coalesced em2: link state changed to UP em2: 17 link states coalesced em2: link state changed to DOWN em2: link state changed to UP em2: 20 link states coalesced The link led is blinking. Fibers are not connected. Rebooting to 6.2-STABLE from Aug 7 works. This happens on an add-on card with 1000FX (multimode) adapter only. Intel cards on the same system which have UTP interface are OK. Unfortunately I had to plug off the card, but I inserted into a Linux and got the following information about it: 0b:01.0 Ethernet controller: Intel Corporation 82542 Gigabit Ethernet Controller (Fiber) (rev 02) . but I guess that should be enough to figure out what's going on. I suspect one of the em(4) driver updates broke this particular piece of hardware. >How-To-Repeat: Try to boot to a recent RELENG_6 kernel with Intel 82542 network card. >Fix: Fix not known. Using 6.2-STABLE from Aug 7 2007 does not yet introduce the problem. >Release-Note: >Audit-Trail: >Unformatted: