virt April 2012

virt@lists.fedoraproject.org

13 participants
12 discussions

Bridged Networking - Virtual Environments
by Jorge Fábregas 27 Jul '12

27 Jul '12

Hello everyone, I'm learning about bridged networking and how it is applied to virtual environments (bypassing all the automation provided by libvirtd etc) . I have a question regarding ip configuration for the virtual bridge. Let's say I have a host (my machine) where I want to run 3 VMs bridged to my home network (thru eth0). I have a DHCP server running on my DSL router, and I have dhcp enabled on my 3 VMs so they all should get a lease from the DHCP. As far as a I know these are the raw steps needed to accomplish this: 1- create br0 2- remove current ip address from eth0 3- enslave eth0 to br0 4- create tap devices 5- attach tap devices to br0 6- assign tap devices to every VM As you can see I haven't assigned an ip address to the virtual bridge (br0). Why is it that (on almost any site that I visit with this setup) they always end up assigning an ip address to br0? Thanks in advance! Jorge

8 11

Log filling with bogus(?) VLAN-related error message
by Ian Pilcher 08 May '12

08 May '12

My syslog is getting flooded with messages like this: Nov 19 15:27:16 ian libvirtd: 15:27:16.949: 2725: error : virInterfaceDefParseXML:807 : XML description for vlan interface misses the vlan element is not well formed or invalid I do have tagged VLAN interfaces on the host (br0.1, br0.4, and br0.251), but none of my VMs are using them. I am not using any libvirt-managed networks at all: [pilcher@ian ~]$ sudo virsh net-list --all Name State Autostart ----------------------------------------- default inactive no I am running libvirt-0.8.8-7.fc15.x86_64. Any ideas? Thanks! -- ======================================================================== Ian Pilcher arequipeno(a)gmail.com "If you're going to shift my paradigm ... at least buy me dinner first." ========================================================================

2 3

Do we have a Google+ circle?
by Renich Bon Ciric 24 Apr '12

24 Apr '12

Hey, guys! It would be cool to have one. Can we have one setup? I'd like it shared to me. -- It's hard to be free... but I love to struggle. Love isn't asked for; it's just given. Respect isn't asked for; it's earned! Renich Bon Ciric http://www.woralelandia.com/ http://www.introbella.com/

2 2

CfP 7th Workshop on Virtualization in High-Performance Cloud Computing (VHPC'12)
by VHPC 15 19 Apr '12

19 Apr '12

we apologize if you receive multiple copies of this CFP. =================================================================== CALL FOR PAPERS 7th Workshop on Virtualization in High-Performance Cloud Computing VHPC '12 as part of Euro-Par 2012, Rhodes Island, Greece =================================================================== Date: August 28, 2012 Workshop URL: http://vhpc.org SUBMISSION DEADLINE: Rolling abstract submission June 4, 2012 - Full paper submission SCOPE: Virtualization has become a common abstraction layer in modern data centers, enabling resource owners to manage complex infrastructure 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 high-performance scientific 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. Distributed computing concepts that leverage federated resource access are popular within the grid community, but have not seen previously desired deployed levels so far. Also, many of the scientific data centers have not adopted virtualization or cloud concepts yet. This workshop aims to bring together industrial providers with the scientific 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. Presentations may be accompanied by interactive demonstrations. TOPICS Topics of interest include, but are not limited to: Higher-level cloud architectures, focusing on issues such as: - Languages for describing highly-distributed compute jobs - Workload characterization for VM-based environments - Optimized communication libraries/protocols in the cloud - Cross-layer optimization of numeric algorithms on VM infrastructure - System and process/bytecode VM convergence - Cloud frameworks and API sets - Checkpointing/migration of large compute jobs - Instrumentation interfaces and languages - VMM performance (auto-)tuning on various load types - Cloud reliability, fault-tolerance, and security - Software as a Service (SaaS) architectures - Research and education use cases - Virtualization in cloud, cluster and grid environments - Cross-layer VM optimizations - Cloud use cases including optimizations - VM-based cloud performance modelling - Performance and cost modelling Lower-level design challenges for Hypervisors, VM-aware I/O devices, hardware accelerators or filesystems in VM environments, especially: - Cloud, grid and distributed filesystems - Hardware for I/O virtualization (storage/network/accelerators) - Storage and network I/O subsystems in virtualized environments - Novel software approaches to I/O virtualization - Paravirtualized I/O subsystems for modified/unmodified guests - Virtualization-aware cluster interconnects - Direct device assignment - NUMA-aware subsystems in virtualized environments - Hardware Accelerators in virtualization (GPUs/FPGAs) - Hardware extensions for virtualization - VMMs/Hypervisors for embedded systems Data Center management methods, including: - QoS and and service levels - VM cloud and cluster distribution algorithms - VM load-balancing in Clouds - Hypervisor extensions and tools for cluster and grid computing - Fault tolerant VM environments - Virtual machine monitor platforms - Management, deployment and monitoring of VM-based environments - Cluster provisioning in the Cloud PAPER SUBMISSION 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 10 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 Springer LNCS series - the format must be according to the Springer LNCS Style. Initial submissions are in PDF; authors of accepted papers will be requested to provide source files. Format Guidelines: http://www.springer.de/comp/lncs/authors.html Style template: ftp://ftp.springer.de/pub/tex/latex/llncs/latex2e/llncs2e.zip Abstract Submission Link: http://edas.info/newPaper.php?c=11943 IMPORTANT DATES Rolling abstract submission June 4, 2012 - Full paper submission June 29, 2012 - Acceptance notification July 20, 2012 - Camera-ready version due August 28, 2012 - Workshop Date CHAIR Michael Alexander (chair), TU Wien, Austria Gianluigi Zanetti (co-chair), CRS4, Italy Anastassios Nanos (co-chair), NTUA, Greece PROGRAM COMMITTEE Paolo Anedda, CRS4, Italy Giovanni Busonera, CRS4, Italy Brad Calder, Microsoft, USA Roberto Canonico, University of Napoli Federico II, Italy Tommaso Cucinotta, Alcatel-Lucent Bell Labs, Ireland Werner Fischer, Thomas-Krenn AG, Germany William Gardner, University of Guelph, USA Marcus Hardt, Forschungszentrum Karlsruhe, Germany Sverre Jarp, CERN, Switzerland Shantenu Jha, Louisiana State University, USA Xuxian Jiang, NC State, USA Nectarios Koziris, National Technical University of Athens, Greece Simone Leo, CRS4, Italy Ignacio Llorente, Universidad Complutense de Madrid, Spain Naoya Maruyama, Tokyo Institute of Technology, Japan Jean-Marc Menaud, Ecole des Mines de Nantes, France Dimitrios Nikolopoulos, Foundation for Research&Technology Hellas, Greece Jose Renato Santos, HP Labs, USA Walter Schwaiger, TU Wien, Austria Yoshio Turner, HP Labs, USA Kurt Tutschku, University of Vienna, Austria Lizhe Wang, Indiana University, USA Chao-Tung Yang, Tunghai University, Taiwan DURATION: Workshop Duration is one day. GENERAL INFORMATION The workshop will be held as part of Euro-Par 2012. Euro-Par 2012: http://europar2012.cti.gr/

1 0

Status of the virt preview repository?
by Hans de Goede 12 Apr '12

12 Apr '12

Hi All, I noticed that the virt-preview repository at: http://repos.fedorapeople.org/repos/jforbes/virt-preview/fedora-16 Is no longer beeing updated, given that Justin has moved over to the Fedora kernel team this is understandable. So the question is what are we going to do with the virt-preview repository? Regards, Hans

4 9

Reminder: Fedora 17 virt test day going on right now!
by Cole Robinson 12 Apr '12

12 Apr '12

Hey all, Just a reminder that the Fedora 17 virt test day is going on right now. If you've got an F17/rawhide machine (or even an F17 VM) and some spare time, use em to run through your regular virt workflow and file bugs for any issues you hit. A bunch of us are hanging out in #fedora-test-day on freenode. More info, including specific test cases: https://fedoraproject.org/wiki/Test_Day:2012-04-12_Virtualization_Test_Day Todd Deshane previously posted some xen specific test info: http://openetherpad.org/xen-fedora-testing Thanks, Cole

1 0

Spice client hates filling out tax forms!
by Tom Horsley 10 Apr '12

10 Apr '12

I'm running H&R block Tax Cut in a Windows XP virtual machine on my Fedora 16 desktop. I'm trying to see if it can import my W-2 form, so I type in my employer's ID number and click the search button, and "Poof!" the spice client window disappears instantly. The virtual machine is still running OK, and I can restart the spice client and TAB to the button and hit Enter. That works fine. I don't know what it is about clicking that one button in that one screen in that one program, but it sure upsets the spice client. I clicked zillions of other buttons while filling out my taxes with no issues at all, but that one is too much for it.

2 3

Serious regression of "systemctl restart libvirtd.service" in F17
by Laine Stump 09 Apr '12

09 Apr '12

See https://bugzilla.redhat.com/show_bug.cgi?id=805942 which describes the problem (all dnsmasq/qemu-kvm/etc processes started by libvirtd are killed by libvirtd restart) and https://www.redhat.com/archives/libvir-list/2012-March/msg00946.html which has an earlier fix to part of the problem, and the discussion that led to the above bug being filed.

1 0

Re: [fedora-virt] FYI: iPXE in Fedora 17
by Kashyap Chamarthy 04 Apr '12

04 Apr '12

On 04/04/2012 02:36 PM, Kashyap Chamarthy wrote: > >>> >>> The version of libvirt you have is not expecting the new 2-digit QEMU >>> version numbers. Update to newer libvirt too ! >> >> Gah, silly me. >> >> Just kicked off a scratch build for libvirt too using this srm --> >> libvirt-0.9.10-4.fc17.src.rpm -- http://koji.fedoraproject.org/koji/taskinfo?taskID=3962625 >> >> Will retest once it's built. > > I updated libvirt from 'virt-preview' repo, and that seems to be sufficient to create a > guest using : > > > === > # virt-install --connect=qemu:///system --network=bridge:br0 --pxe --name f16tbox2 --disk > path=/var/lib/libvirt/images/f16tbox2.img,size=8 --ram 1024 --vcpus=2 --check-cpu --hvm > --os-variant fedora16 > === > > Version info: > === > # rpm -qa | egrep -i 'qemu|libvirt' > ipxe-roms-qemu-20120328-1.gitaac9718.fc16.noarch > libvirt-0.9.10-2.fc16.x86_64 > qemu-common-1.0-11.fc16.x86_64 > qemu-kvm-1.0-11.fc16.x86_64 > qemu-system-x86-1.0-11.fc16.x86_64 > libvirt-client-0.9.10-2.fc16.x86_64 > qemu-img-1.0-11.fc16.x86_64 > libvirt-python-0.9.10-2.fc16.x86_64 > === > > Even the upgrade path from gpxe-roms-qemu to ipxe-roms-qemu is successful. > > Updated the karma on Bodhi for iPXE. > > Thanks Dan. > > >> >> Thanks. >> >> >>> >>> >>> Daniel >> >> _______________________________________________ >> virt mailing list >> virt(a)lists.fedoraproject.org >> https://admin.fedoraproject.org/mailman/listinfo/virt > >

1 0

FYI: iPXE in Fedora 17
by Daniel P. Berrange 04 Apr '12

04 Apr '12

FYI, as of this morning, both Fedora rawhide and Fedora 17 now have QEMU using iPXE. https://admin.fedoraproject.org/updates/FEDORA-2012-4242/ Please try them out with yum --enablerepo=updates-testing update qemu and check PXE boot is working sensibly for you, and that gpxe-roms-qemu gets removed automagically & replaced by ipxe-roms-qemu. Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|

2 5

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

virt April 2012