From owner-freebsd-bugs@FreeBSD.ORG Tue Aug 30 09:10:23 2005 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 8ECB216A41F for ; Tue, 30 Aug 2005 09:10:23 +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 D9F1B43D5C for ; Tue, 30 Aug 2005 09:10:20 +0000 (GMT) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.13.3/8.13.3) with ESMTP id j7U9AKhj099743 for ; Tue, 30 Aug 2005 09:10:20 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.13.3/8.13.1/Submit) id j7U9AKt1099742; Tue, 30 Aug 2005 09:10:20 GMT (envelope-from gnats) Resent-Date: Tue, 30 Aug 2005 09:10:20 GMT Resent-Message-Id: <200508300910.j7U9AKt1099742@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, Xin LI Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6D6EA16A41F; Tue, 30 Aug 2005 09:01:04 +0000 (GMT) (envelope-from delphij@tarsier.delphij.net) Received: from tarsier.delphij.net (tarsier.geekcn.org [210.51.165.229]) by mx1.FreeBSD.org (Postfix) with ESMTP id CFE7E43D48; Tue, 30 Aug 2005 09:01:03 +0000 (GMT) (envelope-from delphij@tarsier.delphij.net) Received: from tarsier.delphij.net (localhost [127.0.0.1]) by tarsier.delphij.net (8.13.4/8.13.4) with ESMTP id j7U912JT076270; Tue, 30 Aug 2005 17:01:02 +0800 (CST) (envelope-from delphij@tarsier.delphij.net) Received: (from delphij@localhost) by tarsier.delphij.net (8.13.4/8.13.1/Submit) id j7U90vUZ076269; Tue, 30 Aug 2005 17:00:57 +0800 (CST) (envelope-from delphij) Message-Id: <200508300900.j7U90vUZ076269@tarsier.delphij.net> Date: Tue, 30 Aug 2005 17:00:57 +0800 (CST) From: Xin LI To: FreeBSD-gnats-submit@FreeBSD.org X-Send-Pr-Version: 3.113 Cc: kan@FreeBSD.org, jeff@FreeBSD.org Subject: kern/85466: [PANIC] mount_nullfs triggers locking against self X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Xin LI List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 30 Aug 2005 09:10:23 -0000 >Number: 85466 >Category: kern >Synopsis: [PANIC] mount_nullfs triggers locking against self >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Tue Aug 30 09:10:20 GMT 2005 >Closed-Date: >Last-Modified: >Originator: Xin LI >Release: FreeBSD 6.0-BETA3 i386 >Organization: The GeekCN Community >Environment: System: FreeBSD tarsier.delphij.net 6.0-BETA3 FreeBSD 6.0-BETA3 #4: Mon Aug 29 03:51:10 CST 2005 delphij@tarsier.delphij.net:/usr/obj/usr/src/sys/TARSIER i386 FreeBSD 7.0-CURRENT affected as well. >Description: An easily reproducable panic can be triggered with mount_nullfs and mount_nfs. >How-To-Repeat: - Create two directories, say, /usr/ports and /mnt - do mount_nullfs /usr/ports /mnt - do mount_nfs something onto /usr/ports - do mount_nullfs /usr/ports /mnt - cd /mnt && ls, the system will panic immediately >Fix: I don't have a patchset to correct this (yet). >Release-Note: >Audit-Trail: >Unformatted: