From owner-freebsd-current@FreeBSD.ORG Wed Nov 5 18:38:13 2014 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 4E699671 for ; Wed, 5 Nov 2014 18:38:13 +0000 (UTC) Received: from dmz-mailsec-scanner-1.mit.edu (dmz-mailsec-scanner-1.mit.edu [18.9.25.12]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id E0FA0669 for ; Wed, 5 Nov 2014 18:38:12 +0000 (UTC) X-AuditID: 1209190c-f795e6d000006c66-2c-545a6e8dec74 Received: from mailhub-auth-4.mit.edu ( [18.7.62.39]) (using TLS with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by dmz-mailsec-scanner-1.mit.edu (Symantec Messaging Gateway) with SMTP id D1.B1.27750.D8E6A545; Wed, 5 Nov 2014 13:38:05 -0500 (EST) Received: from outgoing.mit.edu (outgoing-auth-1.mit.edu [18.9.28.11]) by mailhub-auth-4.mit.edu (8.13.8/8.9.2) with ESMTP id sA5Ic4PM027232; Wed, 5 Nov 2014 13:38:05 -0500 Received: from multics.mit.edu (system-low-sipb.mit.edu [18.187.2.37]) (authenticated bits=56) (User authenticated as kaduk@ATHENA.MIT.EDU) by outgoing.mit.edu (8.13.8/8.12.4) with ESMTP id sA5Ic2TC013088 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Wed, 5 Nov 2014 13:38:03 -0500 Received: (from kaduk@localhost) by multics.mit.edu (8.12.9.20060308) id sA5Ic1Hl007103; Wed, 5 Nov 2014 13:38:01 -0500 (EST) Date: Wed, 5 Nov 2014 13:38:01 -0500 (EST) From: Benjamin Kaduk To: Chris H Subject: Re: LOR on CURRENT In-Reply-To: <7a3240b0c214206b16498600f6967dfc@ultimatedns.net> Message-ID: References: <7a3240b0c214206b16498600f6967dfc@ultimatedns.net> User-Agent: Alpine 1.10 (GSO 962 2008-03-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrBIsWRmVeSWpSXmKPExsUixG6nrtubFxVi8OiGjMXcGevYLSZc+cHk wOTxccUKVo8Zn+azBDBFcdmkpOZklqUW6dslcGUs6F3HXtDHXDHpwFPmBsZjTF2MnBwSAiYS p9b9hrLFJC7cW8/WxcjFISQwm0nixOHZrBDOBkaJu7tAqkCcg0wSP3bPYAVpERKol5iw6zyY zSKgJXFo336wUWwCKhIz32xkA7FFgOx9jW+ZQWxmAU2Juz23weLCAtISk5Y/BrM5BewlVm+7 BmbzCjhK/O1bxt7FyAE0305iTnMQSFhUQEdi9f4pLBAlghInZz5hgRipJbF8+jaWCYyCs5Ck ZiFJLWBkWsUom5JbpZubmJlTnJqsW5ycmJeXWqRrqJebWaKXmlK6iREUqJySPDsY3xxUOsQo wMGoxMNrkBsZIsSaWFZcmXuIUZKDSUmU1zYnKkSILyk/pTIjsTgjvqg0J7X4EKMEB7OSCG9r FFCONyWxsiq1KB8mJc3BoiTOu+kHX4iQQHpiSWp2ampBahFMVoaDQ0mCtysXqFGwKDU9tSIt M6cEIc3EwQkynAdo+HGQGt7igsTc4sx0iPwpRl2Olqa3vUxCLHn5ealS4rxTQa4TACnKKM2D mwNLMK8YxYHeEuadCzKKB5ic4Ca9AlrCBLTEoicCZElJIkJKqoFxVf51jjXrlU4JW839dGXO t9sma5LOb7w+P3j2g8rzlqph6Wt1X0Q99LLjYeENmftc4aiA58tlE74XFrBUdzxXaVrB8fG7 zCyhczJqTZLvYw6q3Arfx+p20fdFS04d6+b4fduf3CpPD8m+tV3C6VGb3/WzS+ID7WTiBB78 OCX2MqYu4lpR36V2JZbijERDLeai4kQA2nefCgsDAAA= Cc: FreeBSD CURRENT X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 05 Nov 2014 18:38:13 -0000 On Wed, 5 Nov 2014, Chris H wrote: > Greetings, > a fresh install off the 2014-10-26 bootonly iso, generates the > following LOR: > > lock order reversal: > 1st 0xfffffe00f7626b48 bufwait (bufwait) @ /usr/src/sys/kern/vfs_bio.c:3093 > 2nd 0xfffff8000404aa00 dirhash (dirhash) @ This one is a very well-known false positive. http://sources.zabbadoz.net/freebsd/lor/261.html -Ben