From owner-freebsd-hackers@FreeBSD.ORG Thu Jun 3 22:03:56 2010 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id DBB3F106564A; Thu, 3 Jun 2010 22:03:56 +0000 (UTC) (envelope-from avg@icyb.net.ua) Received: from citadel.icyb.net.ua (citadel.icyb.net.ua [212.40.38.140]) by mx1.freebsd.org (Postfix) with ESMTP id EC2808FC0A; Thu, 3 Jun 2010 22:03:55 +0000 (UTC) Received: from porto.topspin.kiev.ua (porto-e.starpoint.kiev.ua [212.40.38.100]) by citadel.icyb.net.ua (8.8.8p3/ICyb-2.3exp) with ESMTP id BAA20852; Fri, 04 Jun 2010 01:03:52 +0300 (EEST) (envelope-from avg@icyb.net.ua) Received: from localhost.topspin.kiev.ua ([127.0.0.1]) by porto.topspin.kiev.ua with esmtp (Exim 4.34 (FreeBSD)) id 1OKIW0-000137-7F; Fri, 04 Jun 2010 01:03:52 +0300 Message-ID: <4C0826C7.7070900@icyb.net.ua> Date: Fri, 04 Jun 2010 01:03:51 +0300 From: Andriy Gapon User-Agent: Thunderbird 2.0.0.24 (X11/20100321) MIME-Version: 1.0 To: Doug Rabson References: <4BEBA334.6080101@icyb.net.ua> <4BEC040E.9080303@FreeBSD.org> <4BFE2ED6.1070402@freebsd.org> <4BFE8C07.9010303@icyb.net.ua> In-Reply-To: X-Enigmail-Version: 0.96.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: freebsd-fs@freebsd.org, freebsd-hackers@freebsd.org Subject: Re: bin/144214: zfsboot fails on gang block after upgrade to zfs v14 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: Thu, 03 Jun 2010 22:03:56 -0000 on 28/05/2010 17:49 Doug Rabson said the following: > > > On 27 May 2010 16:13, Andriy Gapon > wrote: > > on 27/05/2010 17:40 Doug Rabson said the following: > > > > Excellent work - thanks for looking into this. I still think its > easier > > to debug this code in userland using a shim that redirects the zfsboot > > i/o calls to simple read system calls... > > Absolutely! That should much easier. > Do you have such a shim that you could share? > I'd be much obliged for it. And not only I, I think. > Thanks! > > > Attached. I thought I sent it to the list before but perhaps I only sent > to one of the participants in the last gang block thread. Thanks a lot! I am sure that I will find it useful more than once. -- Andriy Gapon