From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gleb Natapov Subject: Re: [Qemu-devel] qemu and qemu.git -> Migration + disk stress introduces qcow2 corruptions Date: Mon, 14 Nov 2011 13:36:58 +0200 Message-ID: <20111114113658.GY3225@redhat.com> References: <4EBB919B.7040605@redhat.com> <4EBC1792.3030004@codemonkey.ws> <4EBC4260.1090405@codemonkey.ws> <4EBCF5DA.1000605@redhat.com> <4EBE499E.4030100@redhat.com> <20111114101610.GA32392@redhat.com> <20111114102421.GE16454@redhat.com> <20111114110802.GB32392@redhat.com> <4EC0F9D1.3060505@redhat.com> <20111114112918.GC32392@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Kevin Wolf , Lucas Meneghel Rodrigues , KVM mailing list , "Michael S. Tsirkin" , "libvir-list@redhat.com" , Marcelo Tosatti , QEMU devel , Juan Jose Quintela Carreira , Avi Kivity To: "Daniel P. Berrange" Return-path: Received: from mx1.redhat.com ([209.132.183.28]:46231 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752355Ab1KNLhG (ORCPT ); Mon, 14 Nov 2011 06:37:06 -0500 Content-Disposition: inline In-Reply-To: <20111114112918.GC32392@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On Mon, Nov 14, 2011 at 11:29:18AM +0000, Daniel P. Berrange wrote: > > Do you have some more details on the kind of errors? Missing files, > > permissions, something like this? Or rather something related to the > > actual content of an image file? > > Missing files due to wrong/missing NFS mounts, or incorrect SAN / iSCSI > setup. Access permissions due to incorrect user / group setup, or read > only mounts, or SELinux denials. Actual I/O errors are less common and > are not so likely to cause QEMU to fail to start any, since QEMU is > likely to just report them to the guest OS instead. > If started correctly QEMU should not report them to the guest OS, but pause instead. -- Gleb.