From owner-freebsd-stable@FreeBSD.ORG Mon Feb 18 20:35:50 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0C57F16A468; Mon, 18 Feb 2008 20:35:50 +0000 (UTC) (envelope-from kris@FreeBSD.org) Received: from weak.local (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id 6A87D13C468; Mon, 18 Feb 2008 20:35:43 +0000 (UTC) (envelope-from kris@FreeBSD.org) Message-ID: <47B9EC1D.6060606@FreeBSD.org> Date: Mon, 18 Feb 2008 21:35:41 +0100 From: Kris Kennaway User-Agent: Thunderbird 2.0.0.9 (Macintosh/20071031) MIME-Version: 1.0 To: Eugene Grosbein References: <47B90868.7000900@electron-tube.net> <86odae5rgr.fsf@ds4.des.no> <863arq5q14.fsf@ds4.des.no> <20080218135948.GB62360@svzserv.kemerovo.su> In-Reply-To: <20080218135948.GB62360@svzserv.kemerovo.su> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-fs@freebsd.org, des@des.no, Jim Bryant , freebsd-stable@freebsd.org, freebsd-security@freebsd.org Subject: Re: How to take down a system to the point of requiring a newfs with one line of C (userland) X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 18 Feb 2008 20:35:50 -0000 Eugene Grosbein wrote: > On Mon, Feb 18, 2008 at 02:53:59PM +0100, Dag-Erling Sm??rgrav wrote: > >> Two bugs: > > [skip] > > That's all very funny, but what about a panic? > > It it true that it's possible for non-root to bring a file system > to not-mountable state? The issue appears to be more subtle than claimed, because no-one else reports being able to reproduce it yet. Kris