From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Tokarev Subject: Re: raw disks no longer work in latest kvm (kvm-88 was fine) Date: Sat, 22 May 2010 15:17:07 +0400 Message-ID: <4BF7BD33.2090700@msgid.tls.msk.ru> 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> <4B93A624.8010707@nagafix.co.uk> <4B93AF8A.3070805@nagafix.co.uk> <4B93C2F9.7030904@msgid.tls.msk.ru> <4B93DE3F.4090103@nagafix.co.uk> <4B93DFF0.5050905@redhat.com> <20100307172151.GA24859@infradead.org> <4B93E29E.6090609@redhat.com> <4B93E9EE.6020701@nagafix.co.uk> <4B93F4A4.9050003@redhat.com> <4B93F96E.30508@nagafix.co.uk> <4B93FA18.2090808@redhat.com> <4B93FAD8.9010207@nagafix.co.uk> <4B93FBC1.3000209@redhat.com> <4B93FD94.7060508@nagafix.co.uk> <4B93FFEE.4080007@redhat.com> <4B9B6008.4090902@nagafix.co.uk> <4BBE51F4.6070904@nagafix.co.uk> <4BF7B589.1070808@nagafix.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: Avi Kivity , Christoph Hellwig , kvm@vger.kernel.org To: Antoine Martin Return-path: Received: from isrv.corpit.ru ([81.13.33.159]:33112 "EHLO isrv.corpit.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752994Ab0EVLRK (ORCPT ); Sat, 22 May 2010 07:17:10 -0400 In-Reply-To: <4BF7B589.1070808@nagafix.co.uk> Sender: kvm-owner@vger.kernel.org List-ID: 22.05.2010 14:44, Antoine Martin wrote: > Bump. > > Now that qemu is less likely to eat my data, " *[Qemu-devel] [PATCH 4/8] > block: fix sector comparism in*" > http://marc.info/?l=qemu-devel&m=127436114712437 > > I thought I would try using the raw 1.5TB partition again with KVM, > still no go. Hm. I don't have so much diskspace (my largest is 750Gb, whole disk), but I created 1.5Tb sparse lvm volume. It appears to work for me, even 32bit version of qemu-kvm-0.12.4 (with the mentioned patch applied). > I am still having to use: > > #undef CONFIG_PREADV > > Host and guest kernel version is 2.6.34, headers 2.6.33, glibc 2.10.1-r1 > qemu-kvm 0.12.4 + patch above. eglibc-2.10.2-6, kernel #2.6.34.0-amd64, kernel headers 2.6.32-11~bpo50+1 (debian) > Who do I need to bug? glibc? kvm? are you running 32bit userspace and 64bit kernel by a chance? If yes that's a kernel prob, see http://thread.gmane.org/gmane.linux.kernel.aio.general/2891 (the fix will be in 2.6.35 hopefully, now it's in Andrew Morton's tree). If not, well, I don't know ;) /mjt