From owner-freebsd-smp Sun Mar 17 8:40: 9 2002 Delivered-To: freebsd-smp@freebsd.org Received: from elvis.mu.org (elvis.mu.org [192.203.228.196]) by hub.freebsd.org (Postfix) with ESMTP id 1047437B41A; Sun, 17 Mar 2002 08:39:54 -0800 (PST) Received: by elvis.mu.org (Postfix, from userid 1192) id CBFD5AE1D0; Sun, 17 Mar 2002 08:39:53 -0800 (PST) Date: Sun, 17 Mar 2002 08:39:53 -0800 From: Alfred Perlstein To: Munehiro Matsuda Cc: tanimura@r.dl.itc.u-tokyo.ac.jp, phk@FreeBSD.ORG, hitmaster2k@yahoo.com, rwatson@FreeBSD.ORG, current@FreeBSD.ORG, smp@FreeBSD.ORG Subject: Re: -current lock warning... Message-ID: <20020317163953.GY4857@elvis.mu.org> References: <35758.1016270542@critter.freebsd.dk> <200203161357.g2GDuwA5043113@silver.carrots.uucp.r.dl.itc.u-tokyo.ac.jp> <200203161618.g2GGHMA5085135@silver.carrots.uucp.r.dl.itc.u-tokyo.ac.jp> <20020317233420F.haro@h4.dion.ne.jp> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20020317233420F.haro@h4.dion.ne.jp> User-Agent: Mutt/1.3.27i Sender: owner-freebsd-smp@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org * Munehiro Matsuda [020317 06:36] wrote: > > PS. I got another message that happend when I ^C'ed a buildworld earlier, > with same kernel. May be it should go to Alfred Perlstein? > > lock order reversal > 1st 0xc198eec0 pipe mutex @ ../../../kern/sys_pipe.c:779 > 2nd 0xc0367fe0 Giant @ ../../../i386/i386/trap.c:716 I think there's a place where the pipe can fault on an address while copying, I'll take a look at this. -- -Alfred Perlstein [alfred@freebsd.org] 'Instead of asking why a piece of software is using "1970s technology," start asking why software is ignoring 30 years of accumulated wisdom.' Tax deductible donations for FreeBSD: http://www.freebsdfoundation.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message