From owner-freebsd-bugs@FreeBSD.ORG Fri Dec 19 12:40:01 2008 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 27C85106567B for ; Fri, 19 Dec 2008 12:40:01 +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 0410A8FC1D for ; Fri, 19 Dec 2008 12:40:01 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.14.3/8.14.3) with ESMTP id mBJCe09w068377 for ; Fri, 19 Dec 2008 12:40:00 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.3/8.14.3/Submit) id mBJCe0te068376; Fri, 19 Dec 2008 12:40:00 GMT (envelope-from gnats) Resent-Date: Fri, 19 Dec 2008 12:40:00 GMT Resent-Message-Id: <200812191240.mBJCe0te068376@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, "Eugene M. Zheganin" Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A00AB106564A for ; Fri, 19 Dec 2008 12:38:52 +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 8F4BF8FC13 for ; Fri, 19 Dec 2008 12:38:52 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (localhost [127.0.0.1]) by www.freebsd.org (8.14.3/8.14.3) with ESMTP id mBJCcpHM056114 for ; Fri, 19 Dec 2008 12:38:51 GMT (envelope-from nobody@www.freebsd.org) Received: (from nobody@localhost) by www.freebsd.org (8.14.3/8.14.3/Submit) id mBJCcplR056113; Fri, 19 Dec 2008 12:38:51 GMT (envelope-from nobody) Message-Id: <200812191238.mBJCcplR056113@www.freebsd.org> Date: Fri, 19 Dec 2008 12:38:51 GMT From: "Eugene M. Zheganin" To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Cc: Subject: bin/129760: after 'umount -f' of a stale NFS share FreeBSD locks up 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, 19 Dec 2008 12:40:01 -0000 >Number: 129760 >Category: bin >Synopsis: after 'umount -f' of a stale NFS share FreeBSD locks up >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 19 12:40:00 UTC 2008 >Closed-Date: >Last-Modified: >Originator: Eugene M. Zheganin >Release: 7.1-PRERELEASE >Organization: Norma JSC. >Environment: FreeBSD elm.norma.com. 7.1-PRERELEASE FreeBSD 7.1-PRERELEASE #0: Tue Dec 16 16:23:33 YEKT 2008 emz@ravenholm.hq.norma.perm.ru:/usr/obj/usr/src/sys/GENERIC i386 >Description: I got a FreeBSD with some NFS shares mounted from the network. I decided to change its IP but forgot to umount NFS shares. When trying to 'umount /mountpoint-of-a-nfs-share' without -f I got mount hanged up infinitely. After successful umount -f I got the inability to log in via ssh, hanged up midnight commander, and 'reboot', issued from local console also hanged up. (Probably some other side effects had place too). >How-To-Repeat: Repeat similar actions. >Fix: >Release-Note: >Audit-Trail: >Unformatted: