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[libvirt-users] virsh migrate fails with Input/output error
by Tim 27 Oct '13

27 Oct '13

Hey guys, I'm running the following setup on a few hosts: ~ # virsh version Compiled against library: libvir 0.9.8 Using library: libvir 0.9.8 Using API: QEMU 0.9.8 Running hypervisor: QEMU 1.0.0 Online Migrations with local storage are working smooth, Host OS is always Ubuntu 12.04, CPUs are Intel E3-1245 V2, 32GB Ram. Now I installed the same software on different hardware: Intel E5-2620, ~128GB Ram The problem: Online migrations from an E5-2620 to another E5-2620 aren't possible: ~ # virsh --debug=1 migrate --verbose my-virtual-maschine qemu+ssh://virt@192.168.99.16:222/system migrate: verbose(bool): (none) migrate: domain(optdata): vm-42800 migrate: desturi(optdata): qemu+ssh://virt@192.168.99.16:222/system migrate: found option <domain>: vm-42800 migrate: found option <domain>: vm-42800 error: End of file while reading data: : Input/output error error: Reconnected to the hypervisor I can't find anything related to this in the libvirt logfile or via an strace. Let me know if you have any ideas or if you need more information.

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[libvirt-users] Automated hashdeep and upgrade for VMs
by Sean Alexandre 24 Oct '13

24 Oct '13

Are there any utilities or scripts that automate the process of upgrading VMs, along with other maintenance such as doing a hashdeep check of system files? The key features I'm looking for would do something like: - A: Shut down VM. - B: Do a hashdeep check of system files. - C: Optionally restore VM from a previous backup. - D: Restart VM. - E: Upgrade packages. - F: Shut down VM. - G: Backup VM (for next "C".) - H: Run hashdeep on system files (for next "B".) - I: Restart VM. Other features, but less important, would backup/restore application files as well.

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[libvirt-users] libvirt_lxc causes cpu 100% usage
by 止语 24 Oct '13

24 Oct '13

libvirt_lxc causes cpu 100% usage? libvirt version : 1.1.1 I don't know what happend, any help would be appreciated. thx top - 07:39:44 up 1 day, 2:13, 2 users, load average: 4.72, 4.59, 4.51 Tasks: 243 total, 4 running, 239 sleeping, 0 stopped, 0 zombie %Cpu0 : 33.1 us, 1.3 sy, 0.0 ni, 64.6 id, 0.7 wa, 0.0 hi, 0.3 si, 0.0 st %Cpu1 : 41.1 us, 3.0 sy, 0.0 ni, 55.3 id, 0.7 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu2 : 18.0 us, 2.0 sy, 0.0 ni, 79.7 id, 0.0 wa, 0.0 hi, 0.3 si, 0.0 st %Cpu3 : 94.8 us, 5.2 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu4 : 55.7 us, 7.5 sy, 0.0 ni, 36.7 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu5 : 66.1 us, 4.3 sy, 0.0 ni, 29.6 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu6 : 16.8 us, 1.0 sy, 0.0 ni, 82.2 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu7 : 7.2 us, 0.7 sy, 0.0 ni, 92.1 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st KiB Mem: 1972112 total, 1894912 used, 77200 free, 236576 buffers KiB Swap: 10485744 total, 0 used, 10485744 free, 574544 cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 15750 root 20 0 10448 2080 1216 R 100.3 0.1 1322:38 libvirt_lxc 27517 root 20 0 10448 2032 1200 R 99.3 0.1 1273:44 libvirt_lxc 25250 root 20 0 10480 2048 1200 R 99.0 0.1 1277:31 libvirt_lxc ....

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[libvirt-users] cannot attach device using libvirt
by song 23 Oct '13

23 Oct '13

Hello guys: I am using libvirt 0.9.4 on a CentOS 6.3 server.The operation of attach device won't work.It states "error:Operation failed.Device hotplug is not supported." When issue attach device command, there's nothing happen in guest dmesg log. Anybody came across this problem? Any help will be appreciated!

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Re: [libvirt-users] kvm/libvirt can't use vmdk files? qemu: 'vmdk' invalid format
by Hammad Siddiqi 22 Oct '13

22 Oct '13

Dear All, While trying to run kvm VM using vmdk disk on 6.4 , I got into the following error, error: Failed to create domain from vmdkvm.xml error: internal error process exited while connecting to monitor: qemu-kvm: -drive file=/mnt/vmdkTOKVM/vmdkTOKVM.vmdk,if=none,id=drive-ide0-0-0,format=vmdk,cache=none: 'vmdk' invalid format upon further digging I came across this thread ( https://www.redhat.com/archives/libvirt-users/2011-November/msg00044.html) also qemu-kvm shows that vmdk is supported but all in vain Even if I try running with command line instead of XML I get error though it says it is supported [root@vmdkTOKVM]# /usr/libexec/qemu-kvm -drive file=/mnt/vmdkTOKVM/vmdkTOKVM.vmdk,format=? Supported formats: raw cow qcow vdi vmdk cloop dmg bochs vpc vvfat qcow2 qed parallels nbd blkdebug host_cdrom host_floppy host_device file [root@vmdkTOKVM]# /usr/libexec/qemu-kvm -drive file=/mnt/vmdkTOKVM/vmdkTOKVM.vmdk,format=vmdk qemu-kvm: -drive file=/mnt/XOcom-prx-kvm/XOcom-prx-kvm.vmdk,format=vmdk: 'vmdk' invalid format The packages being used are: qemu-img-0.12.1.2-2.355.0.1.el6_4.9.x86_64 qemu-kvm-0.12.1.2-2.355.0.1.el6_4.9.x86_64 qemu-kvm-tools-0.12.1.2-2.355.0.1.el6_4.9.x86_64 libvirt-0.10.2-18.el6_4.14.x86_64 Any help in this regard will highly be apprectiated. Thank you Hammad Siddqi

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[libvirt-users] hotplug is not supported
by song 22 Oct '13

22 Oct '13

Hello everybody: I am using libvirt 0.9.4 on centos 6.4,when I am trying to attach disk to a running vm, it shows : error: operation failed: drive hotplug is not supported Any body ever come across this problem?

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[libvirt-users] Exploring linbvirt.
by cooldharma06 22 Oct '13

22 Oct '13

hi, i am started to exploring libvirt. i am using the version libvirt-1.1.3 and i want to know (or) find the path how the libvirt is creating VM with xen (libxl) in the source. Any guide or reference is available for this. How i can find the path of calling sequence for other operations(api). Guide me to get some idea on debugging the libvirt. Regards, cooldharma06

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[libvirt-users] help with VM migration problem: getfd, SCM_RIGHTS
by Joe Linoff 21 Oct '13

21 Oct '13

Hi, I am getting the following error when I try to migrate two VM's on my network using virt-manager: Unable to migrate guest: internal error unable to execute QEMU command 'getfd': No file descriptor supplied via SCM_RIGHTS All of the other VM's work just fine. There are 18 and I tested all of them. Version info OS: CentOS 6.4 (2.6.32-358.23.2) [the hypervisors and the guests] Compiled against library: libvirt 0.10.2 Using library: libvirt 0.10.2 Using API: QEMU 0.10.2 Running hypervisor: QEMU 0.12.1 It looks like this might be related to bug 731243 in the red hat bug DB but that was for 0.9.4. If it is related to SELinux permissions, where can I look to fix it? I ran "sealert -a /var/log/audit/audit.log" on the source hypervisor, the destination hypervisor and on the VM itself but no alerts were reported. Any hints would be greatly appreciated, I am not sure what to try next. Thanks, Joe

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[libvirt-users] Create RBD Format 2 disk images with qemu-image
by Jon 21 Oct '13

21 Oct '13

Hello, I would like to use RBD Format 2 images so I can take advantage of layering. However, when I use "qemu-img create -f rbd rbd:data/foo 10G", I get format 1 RBD images. (Actually, when I use the "-f rbd" flag, qemu-img core dumps, but it looks like that feature may have been deprecated [1]) Is there any way to have qemu-img create RBD Format 2 images or am I better off using `rbd` to create the image then booting from the disk and performing the install, etc.? Thanks for the assist. Best Regards, Jon A [1] http://lists.ceph.com/pipermail/ceph-users-ceph.com/2013-June/002131.html

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[libvirt-users] [FWD: [Qemu-devel] KVM Forum 2013 presentations on Google+ (Hangouts on-air)]
by Daniel P. Berrange 18 Oct '13

18 Oct '13

FYI for those not able to visit KVM Forum this year, we're attempting to have presentations streaming via G+. No guarantees about success, since we're at mercy of the Hotel net connection, but if streaming fails we'll at least have recordings of all sessions to be uploaded afterwards. Keep an eye on the G+ community mentioned below if you want to try and catch any live sessions. We'll put info in there if we suceed in streaming. Also code reviews next week may be subject to delay, since the Red Hat libvirt team will be at the KVM Forum. Regards, Daniel ----- Forwarded message from "Ademar de Souza Reis Jr." <areis(a)redhat.com> ----- > Date: Thu, 17 Oct 2013 17:33:53 -0300 > From: "Ademar de Souza Reis Jr." <areis(a)redhat.com> > To: qemu-devel(a)nongnu.org > Subject: [Qemu-devel] KVM Forum 2013 presentations on Google+ (Hangouts on-air) > > Hi there. > > We're going to broadcast the KVM Forum 2013 presentations and > keynotes using Google+ "Hangouts On-air". We also plan to have > etherpads available for live discussions and notes. > > We're doing our best to make sure the audio/video/internet > quality is good. We can't promise anything at this point, but > hopefully those of you who won't be able to attend might find it > useful. > > Stay tuned! > > Our Google+ page: > http://gplus.to/kvmforum2013 > > Youtube Channel (linked to the page above): > http://www.youtube.com/channel/UCRCSQmAOh7yzgheq-emy1xA > > The program schedule: > http://events.linuxfoundation.org/events/kvm-forum/program/schedule > > Cheers! > - Ademar > > -- > Ademar de Souza Reis Jr. > Red Hat > > ^[:wq! > > ----- End forwarded message ----- -- |: 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 :|

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