From owner-freebsd-hackers@FreeBSD.ORG Sun Jan 14 18:18:19 2007 Return-Path: X-Original-To: freebsd-hackers@freebsd.org Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 4EFFC16A40F for ; Sun, 14 Jan 2007 18:18:19 +0000 (UTC) (envelope-from bra@fsn.hu) Received: from people.fsn.hu (people.fsn.hu [195.228.252.137]) by mx1.freebsd.org (Postfix) with ESMTP id E0D8013C455 for ; Sun, 14 Jan 2007 18:18:18 +0000 (UTC) (envelope-from bra@fsn.hu) Received: from localhost (localhost [127.0.0.1]) by people.fsn.hu (Postfix) with ESMTP id C9D658441E; Sun, 14 Jan 2007 19:18:16 +0100 (CET) Received: from people.fsn.hu ([127.0.0.1]) by localhost (people.fsn.hu [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 83131-03; Sun, 14 Jan 2007 19:18:12 +0100 (CET) Received: from [192.168.1.101] (catv-5062c5d8.catv.broadband.hu [80.98.197.216]) by people.fsn.hu (Postfix) with ESMTP id 9B4EE84425; Sun, 14 Jan 2007 19:18:11 +0100 (CET) Message-ID: <45AA73DC.6090808@fsn.hu> Date: Sun, 14 Jan 2007 19:18:04 +0100 From: Attila Nagy User-Agent: Thunderbird 2.0b1 (Windows/20061206) MIME-Version: 1.0 To: Pawel Jakub Dawidek References: <45A0229F.7070701@fsn.hu> <45a03a95.08FguubdCa9DFcxj%perryh@pluto.rain.com> <45A0DD27.4020704@fsn.hu> <20070111010149.GA2704@xor.obsecurity.org> <45A76480.6010108@fsn.hu> <20070112190655.GC90718@garage.freebsd.pl> In-Reply-To: <20070112190655.GC90718@garage.freebsd.pl> Content-Type: text/plain; charset=ISO-8859-2; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: amavisd-new at fsn.hu Cc: freebsd-hackers@freebsd.org, perryh@pluto.rain.com, Kris Kennaway Subject: Re: ufs_rename: fvp == tvp (can't happen), but it did X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 14 Jan 2007 18:18:19 -0000 On 2007.01.12. 20:06, Pawel Jakub Dawidek wrote: > Silent data corruptions happens, look for example at the "problem with > 4T volume under FreeBSD" thread on current@. > > I'd suggest configuring geli with data authentication on top of the FC > array. geli will detect silent data corruptions. > Data corruption was the first thing, which came into my mind, I am currently trying to reproduce this on another machine. geli's data authentication is a good thing, but ZFS's ability to actually correct the errors (in this case, at least) is even more better. :) Is there a newer patch for ZFS than this: http://people.freebsd.org/~pjd/patches/zfs_20061117.patch.bz2 ? I as far as I can see, you've put a tremendous amount of work into it in perforce... Thanks,