From owner-freebsd-questions@FreeBSD.ORG Tue Jul 14 09:55:25 2009 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 8E21A1065674 for ; Tue, 14 Jul 2009 09:55:25 +0000 (UTC) (envelope-from fernando.apesteguia@gmail.com) Received: from mail-ew0-f211.google.com (mail-ew0-f211.google.com [209.85.219.211]) by mx1.freebsd.org (Postfix) with ESMTP id 127CD8FC08 for ; Tue, 14 Jul 2009 09:55:24 +0000 (UTC) (envelope-from fernando.apesteguia@gmail.com) Received: by ewy7 with SMTP id 7so788622ewy.43 for ; Tue, 14 Jul 2009 02:55:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=+g97jEQ+7N63JdsMaplNzfEjKFU3ptFicBv/vVh7W9M=; b=Sg9x2kaQ5HtHi/PSVwUF4uCqEkncSg6MkY9/RmF4nsDz3zeZLkiYSf6Y4ph4SfwFwE h9WVzyGOPECPfNEaqZrEOTLdrdky/BvSBaumiSOUiKw1grn+KuMIWP77/pLkcYTGQriJ s6nhQXrRpqT7hEjprMfnxFe5L9gMMaYLwdiBI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=YEdfOj5dOVaAEliXEYXlYudM0IGAT/akkCAjSPk/wlImUDvy3H8TEv29KwLQZ8B69a juZEiXQTGpkofVt2hmBkEKb0AUSeEDPlgE4U6Vob9C6GFCoH1JqWeimPoQTrjnMigBAx 5MddbWrMrgxwMhvzeiLChhGAfv3O1095PJ9jM= MIME-Version: 1.0 Received: by 10.216.47.196 with SMTP id t46mr1713945web.121.1247565324077; Tue, 14 Jul 2009 02:55:24 -0700 (PDT) In-Reply-To: <4ad871310907131437p439bc099o243f578e9c6740e6@mail.gmail.com> References: <1bd550a00907131347j118904b8j4dbc06b538283ae@mail.gmail.com> <4ad871310907131428v533d5187p17fd6536224bcd21@mail.gmail.com> <4ad871310907131437p439bc099o243f578e9c6740e6@mail.gmail.com> Date: Tue, 14 Jul 2009 11:55:24 +0200 Message-ID: <1bd550a00907140255g427e0e65s3e7727899b62406d@mail.gmail.com> From: =?ISO-8859-1?Q?Fernando_Apestegu=EDa?= To: Glen Barber Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: User Questions Subject: Re: 8.0 BETA1 LOR X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 14 Jul 2009 09:55:25 -0000 2009/7/13 Glen Barber : > 2009/7/13 Glen Barber : >> Hi, Fernando >> >> 2009/7/13 Fernando Apestegu=EDa : >>> Hi there, >>> >>> I downloaded FreeBSD 8.0 in order to help testing it. I have found >>> several issues. This is the first one: >>> >>> Jul 13 18:37:43 beastie kernel: lock order reversal: >>> Jul 13 18:37:43 beastie kernel: 1st 0xffffff0007d42ba8 ufs (ufs) @ >>> /usr/src/sys/kern/vfs_mount.c:1199 >>> Jul 13 18:37:43 beastie kernel: 2nd 0xffffff002e007270 devfs (devfs) @ >>> /usr/src/sys/fs/msdosfs/msdosfs_vfsops.c:944 >>> Jul 13 18:37:43 beastie kernel: KDB: stack backtrace: >>> Jul 13 18:37:43 beastie kernel: db_trace_self_wrapper() at >>> db_trace_self_wrapper+0x2a >>> Jul 13 18:37:43 beastie kernel: _witness_debugger() at _witness_debugge= r+0x2e >>> Jul 13 18:37:43 beastie kernel: witness_checkorder() at witness_checkor= der+0x81e >>> Jul 13 18:37:43 beastie kernel: __lockmgr_args() at __lockmgr_args+0xcf= 3 >>> Jul 13 18:37:43 beastie kernel: vop_stdlock() at vop_stdlock+0x39 >>> Jul 13 18:37:43 beastie kernel: VOP_LOCK1_APV() at VOP_LOCK1_APV+0x9b >>> Jul 13 18:37:43 beastie kernel: _vn_lock() at _vn_lock+0x47 >>> Jul 13 18:37:43 beastie kernel: msdosfs_sync() at msdosfs_sync+0x227 >>> Jul 13 18:37:43 beastie kernel: dounmount() at dounmount+0x2ca >>> Jul 13 18:37:43 beastie kernel: unmount() at unmount+0x28a >>> Jul 13 18:37:43 beastie kernel: syscall() at syscall+0x1af >>> Jul 13 18:37:43 beastie kernel: Xfast_syscall() at Xfast_syscall+0xd0 >>> Jul 13 18:37:43 beastie kernel: --- syscall (22, FreeBSD ELF64, >>> unmount), rip =3D 0x8006a09ac, rsp =3D 0x7fffffffdc38, rbp =3D 0 --- >>> Jul 13 18:37:44 beastie gnome-keyring-daemon[61245]: removing >>> removable location: volume_size_4144496640 >>> >>> I got this while trying to unmount a USB device. The unmounting seemed >>> to be fine, all the files were in the device and no corruption >>> occurred. I found a very similar problem (maybe the same) here[1]. Any >>> clues about this? >>> >>> >>> Thanks in advance. >>> >>> PS: Is this the proper list for asking these questions? >>> >>> [1] http://forums.freebsd.org/showthread.php?p=3D31490 >> >> You can view reported lock order reversals here: >> >> http://sources.zabbadoz.net/freebsd/lor.html >> >> Questions about the -CURRENT branch should be asked on questions@. >> > > This is why multitasking is not generally a good thing. =A0I meant curren= t@. OK, thanks. I will have a look at the list. Cheers > > Sorry for the noise. > > > -- > Glen Barber >