From owner-freebsd-stable@FreeBSD.ORG Mon Mar 8 00:59:10 2004 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id B64C616A4CE; Mon, 8 Mar 2004 00:59:10 -0800 (PST) Received: from mizar.origin-it.net (mizar.origin-it.net [194.8.96.234]) by mx1.FreeBSD.org (Postfix) with ESMTP id 240F443D1D; Mon, 8 Mar 2004 00:59:10 -0800 (PST) (envelope-from helge.oldach@atosorigin.com) Received: from matar.hbg.de.int.atosorigin.com (dehsfw3e.origin-it.net [194.8.96.68])i288wnq5039474 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Mon, 8 Mar 2004 09:58:49 +0100 (CET) (envelope-from helge.oldach@atosorigin.com) Received: from galaxy.hbg.de.ao-srv.com (galaxy.hbg.de.ao-srv.com [161.89.20.4])ESMTP id i288wnRF068553; Mon, 8 Mar 2004 09:58:49 +0100 (CET) (envelope-from helge.oldach@atosorigin.com) Received: (from hmo@localhost) by galaxy.hbg.de.ao-srv.com (8.9.3p2/8.9.3/hmo30mar03) id JAA18049; Mon, 8 Mar 2004 09:58:48 +0100 (MET) Message-Id: <200403080858.JAA18049@galaxy.hbg.de.ao-srv.com> In-Reply-To: <20040303134001.GA63144@cat.robbins.dropbear.id.au> from Tim Robbins at "Mar 3, 2004 2:40: 1 pm" To: tjr@freebsd.org (Tim Robbins) Date: Mon, 8 Mar 2004 09:58:47 +0100 (MET) From: Helge Oldach X-Address: Atos Origin GmbH, Friesenstraße 13, D-20097 Hamburg, Germany X-Phone: +49 40 7886 7464, Fax: +49 40 7886 9464, Mobile: +49 160 4782517 MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit cc: pawmal-posting@freebsd.lublin.pl cc: stable@freebsd.org cc: FreeBSD-gnats-submit@freebsd.org Subject: Re: Using read-only NULLFS leads to panic. gdb output included, e asy to reproduce. X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 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, 08 Mar 2004 08:59:10 -0000 Hi, Tim Robbins: >On Wed, Mar 03, 2004 at 12:09:30PM +0100, Pawel Malachowski wrote: > >> On Wed, Mar 03, 2004 at 11:25:36AM +1100, Tim Robbins wrote: >> >> > There are known bugs in nullfs in all 4.x releases to date, and in 5.0. >> > If I have time, I may MFC the fixes some time before 4.10 is released. >> >> Sounds interesting. >> >> > Can you reproduce these problems on 5.1 or 5.2? >> >> Procedure: >> mount_null -o ro /usr/ports /mnt/1 >> find /usr/ports -type f -perm -u+s & >> find /mnt/1 -type f -perm -u+s & >> ... >> >> >> >> I was not able to reproduce panic on 5.1-RELEASE system. >> >> However, I've reproduced second problem described in this PR, >> which happened to me on 4.9-STABLE once. >[...] > >I'm sorry - the commit that fixed the deadlock issue you're describing >here ocurred between 5.1 and 5.2, not between 5.0 and 5.1 like I >had previously thought. Try 5.2, or try this patch on 5.1. If it solves >your problem, I'll backport it to 4.x for you later this week. Did I miss this MFC, or haven't you back-ported it yet? Thanks! Helge