From owner-freebsd-current Fri Jun 22 10: 9:21 2001 Delivered-To: freebsd-current@freebsd.org Received: from meow.osd.bsdi.com (meow.osd.bsdi.com [204.216.28.88]) by hub.freebsd.org (Postfix) with ESMTP id D1C0F37B401 for ; Fri, 22 Jun 2001 10:09:17 -0700 (PDT) (envelope-from jhb@FreeBSD.org) Received: from laptop.baldwin.cx (john@jhb-laptop.osd.bsdi.com [204.216.28.241]) by meow.osd.bsdi.com (8.11.3/8.11.2) with ESMTP id f5MH8aI70608; Fri, 22 Jun 2001 10:08:36 -0700 (PDT) (envelope-from jhb@FreeBSD.org) Message-ID: X-Mailer: XFMail 1.4.0 on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: <20010622105854E.matusita@jp.FreeBSD.org> Date: Fri, 22 Jun 2001 10:13:40 -0700 (PDT) From: John Baldwin To: Makoto MATSUSHITA Subject: Re: lock order reversal Cc: current@FreeBSD.org Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On 22-Jun-01 Makoto MATSUSHITA wrote: > > kuriyama> I got message below with WITNESS option. Is this safe to ignore? > > I've found another WITNESS message (5-current CVSuped Jun/18/2001): > > lock order reversal > 1st 0xc5d2043c process lock @ ../../vm/vm_glue.c:487 > 2nd 0xc05a9ec0 lockmgr interlock @ ../../kern/kern_lock.c:239 Can you turn on WITNESS_DDB in your kenrel config file (or set the debug.witness_ddb loader tunable/sysctl before you get this reversal) and get a backtrace from ddb? -- John Baldwin -- http://www.FreeBSD.org/~jhb/ PGP Key: http://www.baldwin.cx/~john/pgpkey.asc "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message