From owner-freebsd-fs@FreeBSD.ORG Thu Nov 29 10:13:57 2012 Return-Path: Delivered-To: freebsd-fs@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id CA35AC76; Thu, 29 Nov 2012 10:13:57 +0000 (UTC) (envelope-from raymondj@caltech.edu) Received: from outgoing-mail.its.caltech.edu (outgoing-mail.its.caltech.edu [131.215.239.19]) by mx1.freebsd.org (Postfix) with ESMTP id A6D168FC12; Thu, 29 Nov 2012 10:13:57 +0000 (UTC) Received: from fire-doxen.imss.caltech.edu (localhost [127.0.0.1]) by fire-doxen-postvirus (Postfix) with ESMTP id 9267532802C; Thu, 29 Nov 2012 02:13:57 -0800 (PST) X-Spam-Scanned: at Caltech-IMSS on fire-doxen by amavisd-new Received: from [127.0.0.1] (mitsuki.caltech.edu [131.215.167.33]) (Authenticated sender: raymondj) by fire-doxen-submit (Postfix) with ESMTP id 9B981328021; Thu, 29 Nov 2012 02:13:51 -0800 (PST) Message-ID: <50B73548.4020802@caltech.edu> Date: Thu, 29 Nov 2012 02:13:28 -0800 From: Raymond Jimenez User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:16.0) Gecko/20121026 Thunderbird/16.0.2 MIME-Version: 1.0 To: Andriy Gapon Subject: Re: ZFS kernel panics due to corrupt DVAs (despite RAIDZ) References: <50B3E680.8060606@caltech.edu> <50B49F6A.2020509@FreeBSD.org> <50B72AFD.3040902@caltech.edu> <50B72F2E.6080808@FreeBSD.org> In-Reply-To: <50B72F2E.6080808@FreeBSD.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-fs@FreeBSD.org X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 Nov 2012 10:13:57 -0000 On 11/29/2012 1:47 AM, Andriy Gapon wrote: > on 29/11/2012 11:29 Raymond Jimenez said the following: >> Hi Andriy, >> >> On 11/27/2012 3:09 AM, Andriy Gapon wrote: >>> >>> Perhaps this thread could be of some interest to you: >>> http://thread.gmane.org/gmane.os.freebsd.devel.file-systems/15611/focus=15616 >>> >> >> Thank you for the pointer. Unfortunately, a scrub segfaults in the same >> place with the same output. > > My intention was to show the debugging techniques for examining that troublesome > data. > I see, thank you very much. It did help a considerable bit, especially showing how to use zdb with the debugging information. I'll continue working on this and maybe if I'm lucky, I can come up with some patch for my system. Raymond Jimenez