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Re: [libvirt-users] migrate & virtlockd
by NEVEU Stephane 18 Oct '13

18 Oct '13

Up. Any ideas ? Thank you De : NEVEU Stephane Envoyé : lundi 14 octobre 2013 10:46 À : libvirt-users(a)redhat.com Objet : migrate & virtlockd Hi all, I'm testing virtlockd with libvirt 1.1.3 and it seems I can't migrate my VMs from the first to my second kvm node (on a NFS storage). Virtlockd is locking my qcow2 : Error : resource busy Lockspace resource 'ea3jkj78.....' is locked As a result my VM is paused. How can I fix this behavior ? Thank you for your help.

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[libvirt-users] Building XML from working qemu command-line for ARM virtio
by Clark Laughlin 17 Oct '13

17 Oct '13

Hello, I've got a working QEMU command line that I am trying to get into a libvirt dom xml and using domxml-from-native doesn't seem to know how to handle all of it. It's for ARM using some new virtio syntax: qemu-system-arm -machine virt -cpu cortex-a15 -enable-kvm -m 512 -kernel mach-virt-guest-3.11-zImage -display none -serial stdio -netdev type=user,id=mynet -device virtio-net-device,netdev=mynet -drive index=0,id=mydrive,file=saucy-server-cloudimg-armhf.img -device virtio-blk-device,drive=mydrive -initrd saucy-server-cloudimg-armhf-initrd-lpae -append "console=ttyAMA0 root=/dev/vda" Does anyone have any suggestions for converting the rest of it, specifically the -netdev, -drive, and -device params? Here is what domxml-from-native gives: <domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'> <name>unnamed</name> <uuid>fab06af7-aa37-45ca-ac4b-85d9bec89e52</uuid> <memory unit='KiB'>524288</memory> <currentMemory unit='KiB'>524288</currentMemory> <vcpu placement='static'>1</vcpu> <os> <type machine='virt'>hvm</type> <kernel>mach-virt-guest-3.11-zImage</kernel> <initrd>saucy-server-cloudimg-armhf-initrd-lpae</initrd> <cmdline>console=ttyAMA0 root=/dev/vda</cmdline> </os> <cpu mode='custom' match='exact'> <model fallback='allow'>cortex-a15</model> </cpu> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>destroy</on_crash> <devices> <emulator>/home/linaro/ubuntu-cloud-image/qemu-system-arm</emulator> <disk type='file' device='disk'> <driver name='qemu' type='raw'/> <source file='saucy-server-cloudimg-armhf.img'/> <target dev='hda' bus='ide'/> <address type='drive' controller='0' bus='0' target='0' unit='0'/> </disk> <controller type='ide' index='0'/> <controller type='usb' index='0'/> <serial type='stdio'> <target port='0'/> </serial> <console type='stdio'> <target type='serial' port='0'/> </console> <input type='mouse' bus='ps2'/> <graphics type='sdl'/> <video> <model type='cirrus' vram='9216' heads='1'/> </video> <memballoon model='virtio'/> </devices> <qemu:commandline> <qemu:arg value='-display'/> <qemu:arg value='none'/> <qemu:arg value='-netdev'/> <qemu:arg value='type=user,id=mynet'/> <qemu:arg value='-device'/> <qemu:arg value='virtio-net-device,netdev=mynet'/> <qemu:arg value='-device'/> <qemu:arg value='virtio-blk-device,drive=mydrive'/> </qemu:commandline> </domain> Thank you, Clark L

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[libvirt-users] libvirtError: Unable to add bridge br0 port vnet0: Operation not supported
by Maciej Gałkiewicz 17 Oct '13

17 Oct '13

Hi I am using Libvirt 1.1.2 with Openstack Havana (RC2, nova-network) and openvswitch 1.4.2+git20120612-9.1. Libvirt vif driver ( nova.virt.libvirt.vif.LibvirtGenericVIFDriver) generates config likes this: <interface type='bridge'> <mac address='fa:16:3e:44:30:a4'/> <source bridge='br0'/> <model type='virtio'/> <filterref filter='nova-instance-instance-000003d8-fa163e0b07a7'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> and instance fails to start with: 2013-10-16 11:16:13.004+0000: 11943: info : virNetDevProbeVnetHdr:122 : Enabling IFF_VNET_HDR 2013-10-16 11:16:13.105+0000: 11943: error : virNetDevBridgeAddPort:370 : Unable to add bridge br0 port vnet0: Operation not supported If I add <virtualport type='openvswitch' /> inside <interface type='bridge'>...</interface> it seems to work fine. Is it nova-network or libvirt bug or some misconfiguration? regards -- Maciej Gałkiewicz Shelly Cloud Sp. z o. o., Sysadmin http://shellycloud.com/, macias(a)shellycloud.com KRS: 0000440358 REGON: 101504426

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[libvirt-users] libvirt_lxc: "reboot -f" causes libvirt_lxc process to stop, but domain is still "running" for libvirt
by Florian Klink 16 Oct '13

16 Oct '13

Hi, I have a libvirt_lxc system container (with systemd). After running "reboot -f" inside the container, I get "Rebooting.\n". htop shows that the libvirt_lxc and all subprocesses are stopped, but from libvirt api/virsh/virt-manager, the domain is still "running". So it looks like libvirtd doesn't detect that libvirt_lxc process was stopped... Florian

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[libvirt-users] qemuMonitorIO internal error
by Francois Gaudreault 15 Oct '13

15 Oct '13

Hi, I am trying to get some VMs running under qemu-kvm. At some point the VM starts, but then they shutdown by themselves and I see those messages in the log: 2013-10-11 18:28:57.165+0000: 4148: error : qemuMonitorIO:615 : internal error: End of file from monitor 2013-10-11 18:28:57.165+0000: 4148: debug : qemuMonitorIO:648 : Error on monitor internal error: End of file from monitor Any ideas what could cause this behavior? I am running Ubuntu 13.10 x86_64 with libvirt 1.1.1 and qemu-kvm 1.5.0. -- Francois Gaudreault Architecte de Solution Cloud | Cloud Solutions Architect fgaudreault(a)cloudops.com 514-629-6775 - - - CloudOps 420 rue Guy Montréal QC H3J 1S6 www.cloudops.com @CloudOps_

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[libvirt-users] virDomainGetCPUStats missing in Java API bindings ?
by Atul Gosain 15 Oct '13

15 Oct '13

Hi All I am trying to get the performance statistics for KVM using Java bindings. I found some api's for getting memory stats but not able to find any for cpu stats. I found virDomainGetCPUStats which look like its going to return cpu stats for a VM at http://libvirt.org/html/libvirt-libvirt.html and http://libvirt.org/hvsupport.html . I couldnt find these methods getting called from java source too. Which libvirt version does Java API correspond to ? I m using Java API 0.5.1 . If i want to get the virDomainGetCPUStats which is available from 0.9.x versions of libvirt, whats the way to get it in Java API bindings. Thanks Atul

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[libvirt-users] Xen - 4.2.1 with libvirt-1.1.3
by cooldharma06 14 Oct '13

14 Oct '13

hi, i cleared all the stuffs(everything) related to xen and libvirt. i installed freshly xen-4.2.1 from the source. *Installation steps are as follows:* apt-get build-dep xen apt-get install libc6-dev libglib2.0-dev libyajl-dev yajl-tools libbz2-dev bison flex zlib1g-dev git-core texinfo debhelper debconf-utils debootstrap fakeroot *OR* apt-get install bcc bin86 gawk bridge-utils iproute libcurl3 libcurl4-openssl-dev bzip2 module-init-tools transfig tgif tgif texinfo texlive-latex-base gcc-multilib texlive-fonts-extra texlive-fonts-recommended pciutils-dev mercurial libncurses5-dev patch libvncserver-dev libsdl-dev libjpeg62-dev iasl libbz2-dev git-core uuid-dev python python-dev python-twisted build-essential make gcc libc6-dev zlib1g-dev texlive-latex-recommended e2fslibs-dev *Download and build the source* wget http://bits.xensource.com/oss-xen/release/4.2.1/xen-4.2.1.tar.gz tar zxvf xen-4.2.1.tar.gz cd xen-4.2.1 - vi Config.mk edit the XSM_ENABLE = n --------> XSM_ENABLE= y - ./configure –enable-githttp --libdir=/usr/lib64 ( if it is 64 bit machine ) - vi ./.config # write this line -------- > PYTHON_PREFIX_ARG=--install-layout=deb # - make world - make deb - cd ./dist - ./install.sh - # Important - update-grub - ls -al /boot/xen* - update-rc.d xencommons defaults 19 18 - update-rc.d xendomains defaults 21 20 - update-rc.d xen-watchdog defaults 22 23 - update-grub *Configuration* *ln -s /etc/init.d/xendomains /etc/rc0.d/S10xendomains* *ln -s /etc/init.d/xendomains /etc/rc6.d/S10xendomains* *ln -s /etc/init.d/xencommons /etc/rc3.d/S98xencommons* *ln -s /etc/init.d/xendomains /etc/rc3.d/S98xendomains* *ln -s /root/xendom0caps /etc/rc3.d/S98xendom0caps* *ln -s /root/iptables-enable /etc/rc3.d/S99iptables-enable (not required)* *vi /root/xendom0caps (add xl sched-credit -d Domain-0 -w 512)* *chmod +x /root/xendom0caps* *vi /etc/rc.local (add /usr/bin/setterm -powersave off -blank 0* *vi /etc/xen/xend-config.sxp* *comment it --- > #network-script network-bridge* *vi /etc/network/interfaces* *auto xenbr0 * *iface xenbr0 inet dhcp* *bridge_ports eth0 * reboot * then i enter into the xen. *root@boss[/]#xl list* Name ID Mem VCPUs State Time(s) Domain-0 0 3476 8 r----- 614.7 _______________________ then i installed libvirt form the source and the installtion steps are as follows: * ./autogen.sh --system --with-xen=yes --with-libxl=yes * make * make install and then i runned daemon/libvirtd -d then i runned *tools/virsh * *virsh # version* Compiled against library: libvirt 1.1.3 Using library: libvirt 1.1.3 Using API: QEMU 1.1.3 error: failed to get the hypervisor version error: internal error: Cannot find suitable emulator for x86_64 - - - - - - - - - - - - then i started the xend by following command: /etc/init.d/xend start then i checked libvirt(virsh) virsh # version Compiled against library: libvirt 1.1.3 Using library: libvirt 1.1.3 Using API: Xen 1.1.3 Running hypervisor: Xen 4.2.0 ******* i dont know how to enable the xl with libvirt. Anyone guide me.. regards, cooldharma06.

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[libvirt-users] event handler
by Alexandr 14 Oct '13

14 Oct '13

good day to all. i still have not solved my problem with event handling. currently i have following code void libvirt_eventloop_thr_func() { while(true) //TODO: stop somehow on exit { if(virEventRunDefaultImpl() < 0) { virErrorPtr err = virGetLastError(); fprintf(stderr, "Failed to run event loop: %s\n", err && err->message ? err->message : "Unknown error"); } } } ... virSetErrorFunc(NULL, libvirt_error_handler); libvirt_connection = virConnectOpen("qemu:///system"); if (virEventRegisterDefaultImpl() < 0) { virErrorPtr err = virGetLastError(); fprintf(stderr, "Failed to register event implementation: %s\n", err && err->message ? err->message: "Unknown error"); return -1; } { int callback = virConnectDomainEventRegisterAny(libvirt_connection, NULL, VIR_DOMAIN_EVENT_ID_LIFECYCLE, VIR_DOMAIN_EVENT_CALLBACK(domain_event_handler), NULL, NULL); if(callback == -1) { std::cout<<"Error: failed to register domain event handle callback\n"; return -1; } } boost::thread(boost::bind(&libvirt_eventloop_thr_func)); ... libvirt_eventloop_thr_func() called, and locked on virEventRunDefaultImpl(), can it be called in thread, and if no, how should i use it correctly ? sorry for asking again, but i really can't solve it myself. thx in advance.

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[libvirt-users] migrate & virtlockd
by NEVEU Stephane 14 Oct '13

14 Oct '13

Hi all, I'm testing virtlockd with libvirt 1.1.3 and it seems I can't migrate my VMs from the first to my second kvm node (on a NFS storage). Virtlockd is locking my qcow2 : Error : resource busy Lockspace resource 'ea3jkj78.....' is locked As a result my VM is paused. How can I fix this behavior ? Thank you for your help.

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[libvirt-users] Guide to view the libvirt source.
by cooldharma06 14 Oct '13

14 Oct '13

hi all, i am new to this libvirt. Any guide or reference is available to know more things libvirt (individual programs). because it will give me some idea to get about the libvirt and its corresponding programs. If there is available means please guide and share me. i want to give my contribution to this community. Lot of thanks in advance. Regards, cooldharma06.

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