From owner-freebsd-current@FreeBSD.ORG Tue Dec 7 11:41:22 2010 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 9C7EE1065673 for ; Tue, 7 Dec 2010 11:41:22 +0000 (UTC) (envelope-from asmrookie@gmail.com) Received: from mail-gx0-f172.google.com (mail-gx0-f172.google.com [209.85.161.172]) by mx1.freebsd.org (Postfix) with ESMTP id 532E68FC14 for ; Tue, 7 Dec 2010 11:41:22 +0000 (UTC) Received: by gxk28 with SMTP id 28so7954654gxk.17 for ; Tue, 07 Dec 2010 03:41:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:sender:received :in-reply-to:references:date:x-google-sender-auth:message-id:subject :from:to:cc:content-type:content-transfer-encoding; bh=PmbT6p6ibj+1b7hh/YQZ8SaVP3kxtLAugyKAsPwsvxA=; b=mDhUy2rwVe0PMtg+zlP2lwiFpU7TRJwczMjIH8VT/7ZUB9LuggTPuq+x7TL6d3tpsV 17zi3Ggr18a/2OUvAcf4e4LlYKKNE2Yp3tH5EdxftqM6y9g63HryHMt3FUgUK5fr+ev5 TJhCibClsZlWS6auII7rqc0gAgz9VjVjJeKmw= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type :content-transfer-encoding; b=ei1T3fTtiX+Tc5F43cxZc3IXGM5tFn7eI9wjZp88YVjsdqERlAgL8I/ViA8cQE0MjZ 0gu4UJ5wYOGuoDkLzsrvr3Wh/YCc+DljU/pUcDFZY75hTV08dqI6I8QYEDVNaBpeZkT0 7ABgoZ82mKJkr9FrjwR4VpsjA3AWzEwAYTF4A= MIME-Version: 1.0 Received: by 10.150.11.5 with SMTP id 5mr1532739ybk.430.1291722081672; Tue, 07 Dec 2010 03:41:21 -0800 (PST) Sender: asmrookie@gmail.com Received: by 10.236.109.45 with HTTP; Tue, 7 Dec 2010 03:41:21 -0800 (PST) In-Reply-To: References: <44B787D8-243C-4880-A532-261435C89940@gmail.com> Date: Tue, 7 Dec 2010 12:41:21 +0100 X-Google-Sender-Auth: l8iyPT7HIU7bZdHaTQqp84WI8nI Message-ID: From: Attilio Rao To: Erik Cederstrand Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Cc: Garrett Cooper , freebsd-current Subject: Re: Lock order reversal . X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 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: Tue, 07 Dec 2010 11:41:22 -0000 2010/12/7 Erik Cederstrand : > > Den 07/12/2010 kl. 10.20 skrev Garrett Cooper: > >> On Dec 7, 2010, at 12:26 AM, Mehmet Erol Sanliturk wrote: >> >>> A Dmesg.TXT is attached having a lock order reversal . >> >> =C2=A0 =C2=A0The mount LOR is well known. > > I see that this is the standard response to lot's of LOR reports. It seem= s to be one of the most-reported errors on CURRENT (and it's certainly a lo= ud one), but I think a lot of people waste time researching the error and b= rowsing Bjoerns LOR page, only to get the above response (not picking on yo= u, Garrett). > > Do we have the possibility of silencing well-known and presumably harmles= s LOR's if there isn't sufficient motivation to fix the source? Witness has an 'internal blessing list' we never wanted to use in order to keep them popping up as reminder. Actually, the fact the LOR is 'known' doesn't mean it is 'analyzed'. The very few 'Analyzed but harmless' cases in the past have been handled via _NOWITNESS flags I guess. Attilio --=20 Peace can only be achieved by understanding - A. Einstein