From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anthony Liguori Subject: Re: raw disks no longer work in latest kvm (kvm-88 was fine) Date: Mon, 08 Mar 2010 10:45:43 -0600 Message-ID: <4B9529B7.7070505@linux.vnet.ibm.com> References: <4B92BF97.4040001@nagafix.co.uk> <4B92C90B.4030807@msgid.tls.msk.ru> <4B932829.8090503@nagafix.co.uk> <4B9372B6.3050408@msgid.tls.msk.ru> <20100307100022.GA23201@infradead.org> <4B93D277.9070106@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Christoph Hellwig , Michael Tokarev , Antoine Martin , kvm@vger.kernel.org, Anthony Liguori To: Avi Kivity Return-path: Received: from e32.co.us.ibm.com ([32.97.110.150]:33430 "EHLO e32.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755496Ab0CHQqA (ORCPT ); Mon, 8 Mar 2010 11:46:00 -0500 Received: from d03relay02.boulder.ibm.com (d03relay02.boulder.ibm.com [9.17.195.227]) by e32.co.us.ibm.com (8.14.3/8.13.1) with ESMTP id o28GdWLI010017 for ; Mon, 8 Mar 2010 09:39:32 -0700 Received: from d03av03.boulder.ibm.com (d03av03.boulder.ibm.com [9.17.195.169]) by d03relay02.boulder.ibm.com (8.13.8/8.13.8/NCO v9.1) with ESMTP id o28Gjtrt233966 for ; Mon, 8 Mar 2010 09:45:57 -0700 Received: from d03av03.boulder.ibm.com (loopback [127.0.0.1]) by d03av03.boulder.ibm.com (8.14.3/8.13.1/NCO v10.0 AVout) with ESMTP id o289jiHF001965 for ; Mon, 8 Mar 2010 02:45:46 -0700 In-Reply-To: <4B93D277.9070106@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On 03/07/2010 10:21 AM, Avi Kivity wrote: > On 03/07/2010 12:00 PM, Christoph Hellwig wrote: >> >>> I can only guess that the info collected so far is not sufficient to >>> understand what's going on: except of "I/O error writing block NNN" >>> we does not have anything at all. So it's impossible to know where >>> the problem is. >> Actually it is, and the bug has been fixed long ago in: >> >> commit e2a305fb13ff0f5cf6ff805555aaa90a5ed5954c >> Author: Christoph Hellwig >> Date: Tue Jan 26 14:49:08 2010 +0100 >> >> block: avoid creating too large iovecs in multiwrite_merge >> >> >> I've asked for it be added to the -stable series but that hasn't >> happened so far. > > Anthony, this looks critical. > It's in stable now. Sounds like a good time to do a 0.12.4. Regards, Anthony Liguori