From mboxrd@z Thu Jan 1 00:00:00 1970 From: Antoine Martin Subject: Re: raw disks no longer work in latest kvm (kvm-88 was fine) Date: Sun, 07 Mar 2010 11:14:33 +0700 Message-ID: <4B932829.8090503@nagafix.co.uk> References: <4B92BF97.4040001@nagafix.co.uk> <4B92C90B.4030807@msgid.tls.msk.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit To: Michael Tokarev , kvm@vger.kernel.org Return-path: Received: from mamba.nagafix.co.uk ([194.145.196.68]:60643 "EHLO mail.nagafix.co.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753952Ab0CGEOl (ORCPT ); Sat, 6 Mar 2010 23:14:41 -0500 In-Reply-To: <4B92C90B.4030807@msgid.tls.msk.ru> Sender: kvm-owner@vger.kernel.org List-ID: On 03/07/2010 04:28 AM, Michael Tokarev wrote: > Antoine Martin wrote: > >> Hi, >> >> With qemu-kvm-0.12.3: >> ./qemu-system-x86_64 [..] -drive file=/dev/sdc9,if=virtio,cache=none [..] >> [ 1.882843] vdc: >> [ 2.365154] udev: starting version 146 >> [ 2.693768] end_request: I/O error, dev vdc, sector 126 >> [ 2.693772] Buffer I/O error on device vdc, logical block 126 >> [ 2.693775] Buffer I/O error on device vdc, logical block 127 >> [ 2.693777] Buffer I/O error on device vdc, logical block 128 >> > .. > >> [ 3.550076] end_request: I/O error, dev vdc, sector 0 >> >> Works fine with kvm-88: >> cp /usr/src/KVM/kvm-88/pc-bios/*bin ./ >> cp /usr/src/KVM/kvm-88/x86_64-softmmu/qemu-system-x86_64 ./ >> ./qemu-system-x86_64 [..] -drive file=/dev/sdc9,if=virtio,cache=none [..] >> >> [ 1.650274] vdc: unknown partition table >> [ 112.704164] EXT4-fs (vdc): mounted filesystem with ordered data mode >> >> I've tried running as root, using the block device directly (as shown >> above) rather than using a softlink, etc.. >> >> Something broke. >> Host and guest are both running 2.6.33 and latest KVM. >> > https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2933400&group_id=180599 > The initial report is almost 8 weeks old! Is data-corruption and data loss somehow less important than the hundreds of patches that have been submitted since?? Or is there a fix somewhere I've missed? Cheers Antoine