virt September 2013

virt@lists.fedoraproject.org

14 participants
15 discussions

Loading the KVM module (Fedora 19 on ppc64, POWER7)
by Andrej Podzimek 30 Sep '13

30 Sep '13

Hello, I'm trying to run libvirtd and KVM on a POWER7 machine. For some reason, virt-manager on a client says there is no KVM support. :-( The KVM module installed on the system cannot be loaded: # modprobe kvm modprobe: ERROR: could not insert 'kvm': Input/output error There are no new messages in dmesg. Presumably, the file /lib/modules/3.10.11-200.fc19.ppc64p7/kernel/arch/powerpc/kvm/kvm.ko is readable; at least sha1sum can read it. This is how the error appears in strace (from open()ing the module to an unsuccessful kcmp()): open("/lib/modules/3.10.11-200.fc19.ppc64p7/kernel/arch/powerpc/kvm/kvm.ko", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\2", 6) = 6 lseek(3, 0, SEEK_SET) = 0 fstat(3, {st_mode=S_IFREG|0744, st_size=273976, ...}) = 0 mmap(NULL, 273976, PROT_READ, MAP_PRIVATE, 3, 0) = 0x1fffffad0000 kcmp(0x3, 0x1ffffff68330, 0, 0x3, 0) = -1 EIO (Input/output error) The OS is a fresh Fedora 19 installation with kernel.ppc64p7 3.10.11-200.fc19. Perhaps this could be a known issue or a glitch related to SELinux, but I have no idea what to try next. Could someone give me a hint, please? Cheers! Andrej

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Virtio-SCSI & Windows XP
by Jorge Fábregas 30 Sep '13

30 Sep '13

Hi, Do "Windows XP" guests work with the new virtio-scsi? Do we use the same old virtio drivers during installation? Thanks, Jorge

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Specify disk-image format on Virt-Manager
by Jorge Fábregas 27 Sep '13

27 Sep '13

Hi, Are there plans to enhance virt-manager so that it allows you to specify the disk format during the VM-creation wizard? I create a lot VMs with virt-install (where I can specify it) but I also use virt-manger once in a while and would be great if we could specify it there (without first creating the disk image beforehand). I saw an enhancement-request but it was closed as it was for RHEL5. Thanks, Jorge

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WinXP & Slow Network Startup (BallonService)
by Jorge Fábregas 27 Sep '13

27 Sep '13

Hi everyone, I'm running Fedora 19 (with Preview Repo) and just installed Windows XP (media already had SP3) and applied all 100+ updates (no additional 3rd party software installed) with VirtIO (on Net & SCSI controller). I'm running the latest virtio drivers. I proceeded to install the SPICE Agent Tools and rebooted the VM and now I can copy/paste from guest to host (very cool). However, I noticed that the network takes about 1.5 minutes to start. I have the "show icon when connected option" and literally takes 1.5 minutes. I searched the mailing list's archive and there was a similar post but apparently the situation there was related to the .NET framework (which I don't have installed). After some trial & error I finally pinpointed the problem to the "BallonService" installed by the SPICE tools. If I set the service to "disabled" and reboot the VM the network starts right away. Has anyone bumped into this? Regards, Jorge

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Fedora 20 Virt Test Day scheduled for Oct 8th
by Cole Robinson 25 Sep '13

25 Sep '13

Hey all, Just a quick note that the Fedora 20 Virt Test Day is scheduled for Tuesday, Oct 8th. The inprogress landing page is at: https://fedoraproject.org/wiki/Test_Day:2013-10-08_Virtualization So if you're interested in helping test new virt features, or just making sure the stuff you care about isn't broken, please mark your calendars. Thanks, Cole

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Fw: Loading the KVM module (Fedora 19 on ppc64, POWER7)
by Dan Horák 23 Sep '13

23 Sep '13

forwarding to the Fedora/PPC list ... Begin forwarded message: Date: Mon, 23 Sep 2013 11:07:41 +0200 From: Andrej Podzimek <andrej(a)podzimek.org> To: virt(a)lists.fedoraproject.org Subject: [fedora-virt] Loading the KVM module (Fedora 19 on ppc64, POWER7) Hello, I'm trying to run libvirtd and KVM on a POWER7 machine. For some reason, virt-manager on a client says there is no KVM support. :-( The KVM module installed on the system cannot be loaded: # modprobe kvm modprobe: ERROR: could not insert 'kvm': Input/output error There are no new messages in dmesg. Presumably, the file /lib/modules/3.10.11-200.fc19.ppc64p7/kernel/arch/powerpc/kvm/kvm.ko is readable; at least sha1sum can read it. This is how the error appears in strace (from open()ing the module to an unsuccessful kcmp()): open ("/lib/modules/3.10.11-200.fc19.ppc64p7/kernel/arch/powerpc/kvm/kvm.ko", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\2", 6) = 6 lseek(3, 0, SEEK_SET) = 0 fstat(3, {st_mode=S_IFREG| 0744, st_size=273976, ...}) = 0 mmap(NULL, 273976, PROT_READ, MAP_PRIVATE, 3, 0) = 0x1fffffad0000 kcmp(0x3, 0x1ffffff68330, 0, 0x3, 0) = -1 EIO (Input/output error) The OS is a fresh Fedora 19 installation with kernel.ppc64p7 3.10.11-200.fc19. Perhaps this could be a known issue or a glitch related to SELinux, but I have no idea what to try next. Could someone give me a hint, please? Cheers! Andrej _______________________________________________ virt mailing list virt(a)lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/virt

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[deadline in 1 week] 8th Workshop on Virtualization in High-Performance Cloud Computing (VHPC '13)
by VHPC 15 16 Sep '13

16 Sep '13

we apologize if you receive multiple copies of this CfP ================================================================= CALL FOR PAPERS 8th Workshop on Virtualization in High-Performance Cloud Computing (VHPC '13) held in conjunction with SC 13, Denver, Colorado | in cooperation with ACM SIGHPC ================================================================= Date: November 22, 2013 Workshop URL: http://vhpc.org Paper Submission Deadline: September 23, 2013 (firm) Invited Talks: - John Goodacre, Director, Technology and Systems, ARM Processor Division The Evolution of the ARM Architecture Towards Big Data and the Data-Centre. - Jacob Bower, VP of Application Engineering, Maxeler Technologies Ltd. Maximizing Performance with cloud-virtualized Dataflow Engine oo-processors. CALL FOR PAPERS Virtualization has become a common abstraction layer in modern data centers, enabling resource owners to manage complex infrastructures independently of their applications. Conjointly, virtualization is becoming a driving technology for a manifold of industry grade IT services. The cloud concept includes the notion of a separation between resource owners and users, adding services such as hosted application frameworks and queueing. Utilizing the same infrastructure, clouds carry significant potential for use in cpu-intensive or data-intensive high-throughput computing. The ability of clouds to provide for requests and releases of vast computing resources dynamically and close to the marginal cost of providing the services is unprecedented in the history of scientific and commercial computing. This workshop aims to bring together industrial providers with the application community in order to foster discussion, collaboration and mutual exchange of knowledge and experience. The workshop will be one day in length, composed of 20 min paper presentations, each followed by 10 min discussion sections. Lightning talks are limited to 5 minutes. Presentations may be accompanied by interactive demonstrations. TOPICS Topics of interest include, but are not limited to: - Management, deployment and monitoring of VM-based environments - Language-process virtual machines - VM-cloud performance monitoring - VM cloud topology management and optimization - VMs for high-throughput large data analytical workloads - Operating systems virtualization support optimization - VM-based cloud performance modelling - Network virtualization for VM-environments - Data virtualization - Cloudbursting - Evolved grid architectures including such based on network virtualization - Workload characterization for VM-based environments - Optimized communication libraries/protocols in the cloud - System and process/bytecode VM convergence - Cloud frameworks and APIs - GPU Virtualization architectures and APIs - Checkpointing/migration of large compute jobs - Instrumentation interfaces and languages - VMM performance (auto-)tuning on various load types - Cloud reliability, fault-tolerance, and security - Heterogeneous virtualized environments - Paravirtualized I/O - Services in cloud HPC - Research and education use cases - Virtualization in cloud, cluster and grid environments - Cross-layer VM optimizations - Cloud HPC use cases including optimizations - Energy-aware virtualization - Performance and cost modelling - QoS and and service levels - Languages for describing highly-distributed compute jobs - VM cloud and cluster distribution algorithms, load balancing - Instrumentation interfaces and languages - Hypervisor extensions and tools for cluster and grid computing - Virtual machine monitor platforms - Cluster provisioning in the cloud Important Dates: Rolling Paper registration September 23, 2013 - Full paper submission (firm) October 9, 2013 - Acceptance notification October 21, 2013 - Camera-ready version due November 22, 2013 - Workshop Date TPC CHAIR Michael Alexander (chair), TU Wien, Austria Gianluigi Zanetti (co-chair), CRS4, Italy Anastassios Nanos (co-chair), NTUA, Greece PROGRAM COMMITTEE Costas Bekas, IBM, Switzerland Jakob Blomer, CERN Giovanni Busonera, CRS4, Italy Roberto Canonico, University of Napoli Federico II, Italy Simon Crosby, Bromium, USA Tommaso Cucinotta, Alcatel-Lucent Bell Labs, Ireland Michael Day, IBM, USA Casimer DeCusatis, IBM, USA William Gardner, University of Guelph, USA Marcus Hardt, Forschungszentrum Karlsruhe, Germany Sverre Jarp, CERN, Switzerland Xuxian Jiang, NC State, USA Krishna Kant, George Mason University, USA Romeo Kinzler, IBM, Switzerland Nectarios Koziris, National Technical University of Athens, Greece Simone Leo, CRS4, Italy Jean-Marc Menaud, Ecole des Mines de Nantes, France Dimitrios Nikolopoulos, Queen's University of Belfast, UK Josh Simons, VMWare, USA Borja Sotomayor, University of Chicago, USA Yoshio Turner, HP Labs, USA Kurt Tutschku, Blekinge Institute of Technology, Sweden Chao-Tung Yang, Tunghai University, Taiwan PAPER SUBMISSION-PUBLICATION Papers submitted to the workshop will be reviewed by at least two members of the program committee and external reviewers. Submissions should include abstract, key words, the e-mail address of the corresponding author, and must not exceed 8 pages, including tables and figures at a main font size no smaller than 11 point. Submission of a paper should be regarded as a commitment that, should the paper be accepted, at least one of the authors will register and attend the conference to present the work. Accepted papers will be published in the ACM International Conference Proceedings Series. The format must be according to the ACM SIG style. Initial submissions are in PDF; authors of accepted papers will be requested to provide source files. Format Guidelines: http://www.acm.org/sigs/publications/sigguide-v2.2sp Style template: http://www.acm.org/sigs/publications/proceedings-templates Abstract Submission Link: http://edas.info/newPaper.php?c=14791 LIGHTNING TALKS Lightning Talks are non-paper track synoptical in nature that are strictly limited to 5 minutes. They can be used to gain early feedback on ongoing research, for demonstrations, to present research results, early research ideas, perspectives and positions of interest to the community. GENERAL INFORMATION The workshop will be held in conjunction with SC’13, Denver, Colorado. SC 2013: http://sc13.supercomputing.org/

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Fedora 19 & Latest libvirt/qemu
by Jorge Fábregas 14 Sep '13

14 Sep '13

Hi, What repo can I configure in order to run the latest libvirt & qemu packages with Fedora 19? I know I've seen it mentioned before but can't find it. Thanks, Jorge

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Virtualization Package Groups
by Jorge Fábregas 13 Sep '13

13 Sep '13

Hi, What happened to the yum package groups: "Virtualization Platform", "Virtualization Client", "Virtualization Tools" etc...? They seemed to be a nice way of grouping the packages. All I see now in Fedora 19 is the plain "Virtualization" group. (I'm moving away from Fedora 14). Thanks, Jorge

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Sanlock + libvirt
by Ján ONDREJ (SAL) 12 Sep '13

12 Sep '13

Hello, in sanlock docs (https://fedorahosted.org/sanlock/) there is described, how to use it. There is no mention about NFS. Can I use sanlock with LVM (without NFS) with livbirt? It this feature implemented in libvirt for Fedora or RHEL? For libvirt I need to define lease dir as: disk_lease_dir = "/var/lib/libvirt/sanlock" but this have to be a directory. How to configure it to use sanlock on LVM? SAL

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Poor performace for e1000 and other fully virtualized netcard
by Ján ONDREJ (SAL) 11 Sep '13

11 Sep '13

Hello, today I disovered, that e1000 cards has very poor performance in Fedora 18 and 19. Does not matter, if guest is an Linux or other system. By "poor" I mean TCP network transfers about 5-90 kB/s, even if they are on an gigabit network. By downgrading kernel on Fedora 19 from 3.10.X to kernel-3.9.5-301.fc19.x86_64 fixed my problem, so looks like there is an bug in kernel. I tested these kernels: Fast: kernel-3.9.5-301.fc19.x86_64 Slow: kernel-3.10.7-100.fc18.x86_64 kernel-3.10.9-100.fc18.x86_64 kernel-3.10.10-200.fc19.x86_64 Looks like it is an change with kernel-3.10.X. I can test other kernels if requested. For me, it's easy to reproduce. Tested on 4 host machines, 2 Fedoras, multiple kernels and different guests. Also tested some network cards, e1000, pcnet, ... All with similar problems. As described in other bug, virtio net driver has time skew problems, so I can't use it. :-( Any ideas, how to solve this problem? Regards SAL

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libguestfs on PPC64
by Richard W.M. Jones 09 Sep '13

09 Sep '13

[Note I'm not bothering with 32 bit ppc any more since it is effectively obsolete.] Libguestfs now works on ppc64 using the 'direct' backend. You will need: - libguestfs 1.23.21 + 7f90aa0998 - supermin 4.1.x (only tested with supermin-4.1.5-2.fc21.ppc64, but earlier versions should work) - qemu-system-ppc64 compiled from git (qemu 1.4 & 1.6 known to be broken) - kernel-3.10.10-200.fc19.ppc64, earlier versions should work - real ppc64 hardware There are multiple bugs which stop you installing Fedora/ppc64 on qemu-system-ppc64 running on x86-64. Since Fedora 19 has dropped support for PR KVM, and since the Apple G5 I use for testing does not support real HV KVM, I could not test this using KVM, only using TCG. Next steps are: - run the full test suite and fix any problems (in progress) - get it working with the libvirt backend All features should be fully supported except the UML backend won't work (limitation of UML). Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming blog: http://rwmj.wordpress.com Fedora now supports 80 OCaml packages (the OPEN alternative to F#)

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libguestfs on ARM
by Richard W.M. Jones 08 Sep '13

08 Sep '13

libguestfs now has experimental support for 32-bit ARM, including KVM on ARM. You will need at least the following to make it all work: - libguestfs 1.23.21 + 6e498461f6 Use ./configure --with-default-backend=direct. The libvirt backend does not work (yet). - supermin 4.1.5 + a55d9cf157 - kernel that supports virtio-mmio, virtio-scsi, virtio-serial Note that the Fedora 20 kernel has missing virtio-serial support (RHBZ#1005551) so you have to compile your own appliance kernel. - qemu 1.6.0 or from git To use KVM: - Cortex-A15 hardware that boots into Hyp mode - host kernel >= 3.11 with LPAE + KVM support (You can also use regular ARM hardware w/o KVM support, or qemu.) If you need different host and appliance kernels, then set SUPERMIN_KERNEL to point to the appliance vmlinuz and SUPERMIN_DTB to point to the device tree file called 'vexpress-v2p-ca9.dtb'. If host kernel == appliance kernel (as on x86), then you shouldn't need to set any environment variables. It's expected that some tests in the libguestfs test suite will fail. I'm working on fixing those. However the majority should run fine, as should 'make quickcheck' (ie. libguestfs-test-tool) -- if libguestfs-test-tool doesn't work then you're missing some dependency above. I'm also working on making the libvirt backend work. The UML backend does not work on ARM (this is a limitation of UML). Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones virt-p2v converts physical machines to virtual machines. Boot with a live CD or over the network (PXE) and turn machines into KVM guests. http://libguestfs.org/virt-v2v

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Fedora/RHEL virt packages version
by Eric Viseur 07 Sep '13

07 Sep '13

Hi, I'm currently working on a virtualization-based security project whose aim is to be Common Criteria-certified in its final version. What we did was start working with Fedora 18, which should be the basis for RHEL 7. However, it turns out having more recent versions of the KVM-related packages (qemu and libvirt, namely) could be a good help as it would allow us to use vfio. In my understanding, vfio isn't available with the qemu version used on F18. So here is my question : will RHEL7 stictly stick to the F18 packages versions or will it use more up-to-date version ? Regards, Eric Viseur Etudiant Ingénieur Civil Electricien LinkedIn Profile<http://www.linkedin.com/profile/view?id=193442069&trk=tab_pro>

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Fedora virt status August 2013
by Cole Robinson 05 Sep '13

05 Sep '13

Hi all, here are some Fedora virt status bits for August. Fedora 20 ========= The big news for Fedora 20 is that ARM is on its way to becoming a primary architecture: https://fedoraproject.org/wiki/Changes/ARM_as_Primary http://lwn.net/Articles/559502/ The schedule has slipped a couple weeks, due to quite a few FTBFS errors, and some fallout from adding ARM builders to the koji pool. Here's the remaining schedule: https://fedoraproject.org/wiki/Releases/20/Schedule Sep 03: Alpha deadline Sep 17: Alpha release Oct 08: Beta deadline Oct 22: Beta release Nov 26: GA release The three virt 'changes' for F20 are still on track: https://fedoraproject.org/wiki/Changes/Virt_ACLs https://fedoraproject.org/wiki/Changes/Virt_Manager_Snapshots https://fedoraproject.org/wiki/Changes/Virt_ARM_on_x86 The latter two are testable in F20 at the moment but are still a bit rough around the edges, watch those pages for updates. I've requested a date for the F20 virt test day to be in the beginning of October. I'll update the list when the details are finalized. QEMU 1.6 ======== QEMU 1.6 was released on August 15th, 2013. Changelog highlights: - Support for live migration over RDMA - TCG target for aarch64. - Support for auto-convergence in live migration ("CPU stunning") - The XHCI (USB 3.0) controller supports live migration. - New device "nvme" provides a PCI device that implements the NVMe standard. - ACPI hotplug of devices behind a PCI bridge is supported A more detailed changelog is at: http://wiki.qemu.org/ChangeLog/1.6 QEMU 1.6 will be the basis for what is shipped in Fedora 20. Bug stats ========= Bug count on Aug 1 2013 : 218 Total bugs today : 211 Two months in a row with a reduction, hooray! :) But I'm sure that will change this following month with the impending F20 alpha. By release: * Fedora 18 : 75 * Fedora 19 : 104 * Fedora 20 : 1 * Fedora rawhide : 31 By package: * bochs : 1 * edk2 : 2 * gnome-boxes : 33 * ipxe : 3 * libguestfs : 8 * libosinfo : 7 * libvirt : 33 * libvirt-sandbox : 23 * netcf : 7 * qemu : 39 * seabios : 1 * spice-gtk : 2 * usbredir : 1 * virt-dmesg : 1 * virt-manager : 16 * virt-viewer : 8 * virt-what : 3 * virtio-win : 3 * xen : 6 * xorg-x11-drv-cirrus: 2 * xorg-x11-drv-qxl : 12 By status: * ASSIGNED : 18 * NEW : 173 * ON_QA : 2 * POST : 18 Bugs of note ============ https://bugzilla.redhat.com/show_bug.cgi?id=1003162 Certain QMP calls are crashing qemu on i686 in rawhide/f20. I think this results in libvirt not working too well :/ , but there's a patch upstream. Thanks, Cole

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virt September 2013