August 2013 - Users - libvirt List Archives

[libvirt-users] some problem with snapshot by libvirt
by xingxing gao 21 Nov '14

21 Nov '14

Hi,all,i am using libvirt to manage my vm,in these days i am testing the libvirt snapshot ,but meet some problem: the snapshot was created from this command: snapshot-create-as win7 --disk-only --diskspec vda,snapshot=external --diskspec hda,snapshot=no but when i tried to revert from the snapshot which created from the above command ,i got error below: virsh # snapshot-revert win7 1338041515 --force error: unsupported configuration: revert to external disk snapshot not supported yet version: virsh # version Compiled against library: libvir 0.9.4 Using library: libvir 0.9.4 Using API: QEMU 0.9.4 Running hypervisor: QEMU 1.0.93

4 8

[libvirt-users] Bridging Wireless Cards for KVM
by Joshua McKee 02 Oct '13

02 Oct '13

Hi, I hope this is the right place to ask this question. I was wondering if there is a way to set up a KVM VM using an XML document as input into Virsh that uses bridged networking over a wireless card. I understand that wireless cards to not natively support, but I was able to find a working solution here: http://blog.ericwhite.ca/articles/2011/04/creating-a-wireless-bridge/. The issue is, I can use this bridge by calling KVM directly. However, I cannot figure out how to get this same configuration on an XML file that I input into Virsh for the creation of a VM. My understanding is that libvirt calls KVM/QEMU at some point, but I may be mistaken. Thanks, Joshua

2 5

[libvirt-users] SR-IOV Pool Availability
by Brian Rak 26 Sep '13

26 Sep '13

If I'm using the SR-IOV Pool assignment method (from http://wiki.libvirt.org/page/Networking#Assignment_from_a_pool_of_SRIOV_VFs… ), how would I check how many virtual functions are already in use? Is there a method other then looping through all the active guests and determining if they're using the SR-IOV interface?

4 4

[libvirt-users] How to insert vcpupin in guest xml file
by Peeyush Gupta 09 Sep '13

09 Sep '13

Hi all, I am trying to add vcpupin in the guest xml file. I am working with openstack and the code I have is python bound. I investigated through the code and found that the elemets in xml file are set in get_guest_config function. Now the thing is I am not able to set vcpupin element. I mean I tried guest.cputune_vcpupin but it's not working. Help me out, please! Thanks. ~Peeyush Gupta

3 2

[libvirt-users] libvirt-qemu/kvm passthru w/Intel 82598EB
by laurence.schuler 03 Sep '13

03 Sep '13

Hi, I am trying to configure two identical systems with the following setup. dom0: Centos 6 OS on Apple Xserve i7 server with PCI cards for 4GB FC (LSI FC949ES) and 10GB Ethernet (Intel 82598EB) dom1: Centos 5 OS with passthru mode of PCI 4GB FC and 10GB Ethernet (ixgbe and mptfc blacklisted in dom0) Everything starts ok, but networking in dom1 using the 10GB interface has extremely high rtt w/ping tests (20-30ms avg). I've tried a few tweaks I've discovered via googling, but nothing seems to help. (run libvirt as root, set privilege mode, etc) For validation, I have the same card in Dell hosts running Centos 6 natively and they get an avg rtt of .06ms or better. Furthemore the Dell will contact the dom1 but the connection has rtt avg times of about 6ms. With the ethernet interface on the motherboard of the Apple Xserve, I will see rtt times of .06ms within the dom1's, so I think this points to a problem with the Intel card passthru usage, perhaps interrupts handling?. Does anyone know if I need to set any special options for the ixgbe driver under libvirt? TIA, -- Laurence Schuler (Larry) Laurence.Schuler(a)nasa.gov Systems Support ADNET Systems, Inc Scientific Visualization Studio http://svs.gsfc.nasa.gov NASA/Goddard Space Flight Center, Code 606.4 phone: 1-301-286-1799 Greenbelt, MD 20771 fax: 1-301-286-1634 Note: I am not a government employee and have no authority to obligate any federal, state or local government to perform any action or payment.FC949ES

2 1

[libvirt-users] Migration Clarification Request
by The PowerTool 30 Aug '13

30 Aug '13

I built a vm with the guest OS Windows XP. I have it running exactly the way I need it. Now I need to move it to a computer at another location. My plan was to build the vm and then just copy the ISO and take it to the new system. Specifications: Host OS is a current/up-to-date Fedora 18 I used yum install @virtualization I launched boxes in gnome and installed the guest system (XP) After getting everything running to my specifications I started researching how to move the vm to another system. I have one question: Referring to the information at: http://libvirt.org/migration.html " Migration of guests between hosts is a complicated problem" Can someone please point me to documentation stating why migration is "a complicated problem"?? The vm is powered off. I didn't use encryption (that I'm aware of--and I hope that doesn't bite me but I can re-install if necessary). gnome-boxes made this a pretty-simple setup and I like it. I know with about the same effort I can do this in VMWare, if necessary. I also know with VMWare I can create vm images that are portable and easily transported from system to system. If that is not the case with libvirt and gnome-boxes I'd like to understand why. Even though gnome-boxes made the setup fairly easy I can see where it is still in it's infancy. I thought libvirt was more mature and seems to offer CL access to everything I need (which I really like). Thanks, in-advance, for your help and consideration. ThePowerTool "You're darn right, more power."--Tim "the toolman" Taylor

2 1

[libvirt-users] Finding out CPU topology
by Peeyush Gupta 29 Aug '13

29 Aug '13

Hi, I have been trying to find out CPU topology using libvirt. I understand that I can find out the number of cores/sockets/ threads etc through getCapabilities() function. What I am wondering is that is there any function that can provide me the exact topology like how many sockets, how many sockets per core and number of threads per core, if applicable or may be info about numa cells. Is there any mechanism to achieve this? Thanks, ~Peeyush Gupta

2 1

[libvirt-users] Defining VM with snapshots?
by Skardal, Harald 28 Aug '13

28 Aug '13

All, Using Centos 6.4 with provided libvirt: [root@node1 ~]# rpm -q libvirt libvirt-1.0.1-2.el6.x86_64 Assume a VM with one or more live snapshots. In virsh the VM snapshots can be listed. With virsh: - Stop and undefine this VM. - Then define (and start) this VM. The new VM does not have the list of snapshots. Is there a way with virsh to rebuild the metadata such that libvirt "knows" about the snapshots in the "disk stack"? Harald

3 2

[libvirt-users] Oracle RAC in libvirt+KVM environment
by Timon Wang 27 Aug '13

27 Aug '13

We wan't to setup two Oracle instance and make RAC work on them. Both VM are setup based on libvirt + KVM, we use a lvm lun which formated in qcow2 format and set the shareable properties in the disk driver like this: <disk type='block' device='disk'> <driver name='qemu' type='qcow2' cache='none'/> <source dev='/dev/81035c32-d2e4-4aaf-82fa-3e76ae587586/ca18f6a5-7c98-46ea-b562-9424e68a52f3'/> <target dev='hda' bus='ide'/> <shareable/> <address type='drive' controller='0' bus='0' target='0' unit='0'/> </disk> But when we use it as shared data disk like we use iscsi/FC disk for shared data disk, the disk can't be recognized as a share disk, and RAC can't be setup in the environment. Any body can give me some guild on this? I am wondering shareable in the libvirt config really makes the disk shareable? How can I setup the RAC environment in this situable? I found that vmware and vbox can do this according to a blog post, I am wondering if kvm has this ability to make a disk really shareable. -- Focus on: Server Vitualization, Network security,Scanner,NodeJS,JAVA,WWW Blog: http://www.nohouse.net

6 31

[libvirt-users] How to deal with LXC cgroup access control with apparmor ?
by 止语 27 Aug '13

27 Aug '13

I am playing with libvirt 1.1.1 (lxc) when I was starting a LXC container, the process location of cgroup is pretty , just the root directory from the process. But I could tune the cgroup in a container as an user that logged, This is not accepted... I wonder how to restrict it with apparmor ,so one can not modify files in the cgroup fs, e.g the cpus or mem, if i restrict it with "deny /sys/fs/cgroup/** wrklx," in apparmor ,the container woulld not start up . "Permission denied", because that a process would mount the cgroup, it seems done by libvirt_lxc, Any way to restrict the cgroup in the container or just not mount cgroup in the container ?? Any help would be appreciated, thanks .

4 5

[libvirt-users] Fwd: The error for creating a new vm for kvm
by Qian Feng 26 Aug '13

26 Aug '13

---------- Forwarded message ---------- From: Qian Feng <qianfeng04161001(a)gmail.com> Date: Mon, Aug 26, 2013 at 12:59 PM Subject: Re: [libvirt-users] The error for creating a new vm for kvm To: Humble Chirammal <hchiramm(a)redhat.com> I use lsmod | grep kvm, it shows kvm and kvm_intel. It shows: kvm_intel 39608 0 kvm 247190 1 kvm_intel BTW, I use virt-manager to create a new virtual machine for qemu/kvm, it shows no guests are supported for this connection. I tend to restart the service for libvirtd, service libvirtd restart, it shows the error: libvirtd: unrecognized service libvirtd is in the directory: /usr/sbin/libvirtd On Mon, Aug 26, 2013 at 1:08 AM, Humble Chirammal <hchiramm(a)redhat.com>wrote: > > > > ----- Original Message ----- > | From: "Qian Feng" <qianfeng04161001(a)gmail.com> > | To: libvirt-users(a)redhat.com > | Sent: Sunday, August 25, 2013 10:20:03 PM > | Subject: [libvirt-users] The error for creating a new vm for kvm > | > | I checked the capabilities. I do not know why the guest is only for vbox. > | <guest> > | <os_type>hvm</os_type> > | <arch name='i686'> > | <wordsize>32</wordsize> > | <domain type='vbox'> > | </domain> > | </arch> > | </guest> > | > | I want it run qemu-kvm. and when i run virsh define > | /etc/libvirt/qemu/demo.xml. It shows error: Failed to define domain from > | /etc/libvirt/qemu/demo.xml > | error: unknown OS type hvm > > Any of the possibility listed here can contribute that error.. > http://humblec.com/error-libvirt-unknown-os-type-hvm/ > > | > | Then I use virsh-install --prompt to install kvm guest, it shows error: > | libvirtError: this function is not supported by the connection driver: > | virConnectNumOfDefinedStoragePools > | > | I really do not know how to do, please help me, thanks. > | > | -- > | Have a nice day! > | > | Qian > | > | _______________________________________________ > | libvirt-users mailing list > | libvirt-users(a)redhat.com > | https://www.redhat.com/mailman/listinfo/libvirt-users > -- Have a nice day! Qian -- Have a nice day! Qian

1 0

[libvirt-users] The error for creating a new vm for kvm
by Qian Feng 26 Aug '13

26 Aug '13

I checked the capabilities. I do not know why the guest is only for vbox. <guest> <os_type>hvm</os_type> <arch name='i686'> <wordsize>32</wordsize> <domain type='vbox'> </domain> </arch> </guest> I want it run qemu-kvm. and when i run virsh define /etc/libvirt/qemu/demo.xml. It shows error: Failed to define domain from /etc/libvirt/qemu/demo.xml error: unknown OS type hvm Then I use virsh-install --prompt to install kvm guest, it shows error: libvirtError: this function is not supported by the connection driver: virConnectNumOfDefinedStoragePools I really do not know how to do, please help me, thanks. -- Have a nice day! Qian

3 2

Re: [libvirt-users] The error for creating a new vm for kvm
by Saurabh Deochake 26 Aug '13

26 Aug '13

> Thanks, but I checked it and It shows I have already installed qemu-kvm. Please check if kvm and kvm_intel ( for systems with 'vmx' flag) / kvm_amd (systems with 'svm' flag) are loaded in the system. On Mon, Aug 26, 2013 at 9:40 AM, Qian Feng <qianfeng04161001(a)gmail.com>wrote: > Thanks, but I checked it and It shows I have already installed qemu-kvm. > > > On Mon, Aug 26, 2013 at 12:05 AM, Saurabh Deochake <saurabh.d04(a)gmail.com>wrote: > >> Hi Qian, >> >> I encountered exactly same problem. I found out that I didnot have qemu >> installed. Please check that you have qemu-kvm installed by running >> "apt-get install qemu-kvm" on debian! >> >> Thanks, >> Saurabh Deochake >> NTT DATA OSS Center. >> >> >> On Sun, Aug 25, 2013 at 10:20 PM, Qian Feng <qianfeng04161001(a)gmail.com>wrote: >> >>> I checked the capabilities. I do not know why the guest is only for >>> vbox. >>> <guest> >>> <os_type>hvm</os_type> >>> <arch name='i686'> >>> <wordsize>32</wordsize> >>> <domain type='vbox'> >>> </domain> >>> </arch> >>> </guest> >>> >>> I want it run qemu-kvm. and when i run virsh define >>> /etc/libvirt/qemu/demo.xml. It shows error: Failed to define domain from >>> /etc/libvirt/qemu/demo.xml >>> error: unknown OS type hvm >>> >>> Then I use virsh-install --prompt to install kvm guest, it shows error: >>> libvirtError: this function is not supported by the connection driver: >>> virConnectNumOfDefinedStoragePools >>> >>> I really do not know how to do, please help me, thanks. >>> >>> -- >>> Have a nice day! >>> >>> Qian >>> >>> _______________________________________________ >>> libvirt-users mailing list >>> libvirt-users(a)redhat.com >>> https://www.redhat.com/mailman/listinfo/libvirt-users >>> >> >> > > > -- > Have a nice day! > > Qian >

1 0

[libvirt-users] Strange connectivity issues with bridged networking and masquerade
by Kolja Scheffler 24 Aug '13

24 Aug '13

Hi all, I'm currently in the process of building a 2-Node libvirt/KVM Cluster and ran into some issues regarding the network connectivity of our virtual machines. Our setup seemed to work fine, we were able to browse to Google and our own company website and some others from within the VM. Then we tried microsoft.com to download some Windows iso images from MS Partner Network. The page started to load, but only a few elements became visible - then it sticked to: "Loading data from microsoft.com" ...forever. A few other examples that do not work are: * www.opera.com * www.amazon.com * www.speedtest.net All of these pages load without any problem, when I access them from my laptop or even with Firefox via X-Forwarding launched directly on the hypervisor system. From within the VMs they just refuse to finish loading. The only thing those pages have in common, as far as I can see, is that they heavily utilize CDNs like Amazon Cloudfront or Akamai. The idea behind our setup is, that all virtual machines communicate on the 192.168.3.0/24 network. The nodes have a VLAN connection on eth1. To allow connections between VMs on different hosts, we created the bridge device br1 with eth1 attached and added the VMs to it. eth0 provides internet access with xx.xx.220.0 as additional public failover ip. We added 192.168.3.254 as additional IP to one of the node's br1 device to use it as the default gateway for the VMs. This IP can be migrated between the nodes. Our setup looks like this: ____________ / \ ( Internet ) \____________/ / \ Node1: | | Node2: | | xx.xx.217.8 (eth0) (eth0) xx.xx.217.10 xx.xx.220.0 \ {Masq.} / (eth1)----(eth1) | | 192.168.3.1 [br1 ] [br1 ] 192.168.3.2 192.168.3.254 | | | | 192.168.3.50 (vnet0) (vnet0) 192.168.3.75 ---------- iptables looks like this: root@vm01:~# iptables -S -P INPUT ACCEPT -P FORWARD ACCEPT -P OUTPUT ACCEPT -A FORWARD -d 192.168.3.0/24 -o br1 -m state --state RELATED,ESTABLISHED -j ACCEPT -A FORWARD -s 192.168.3.0/24 -i br1 -j ACCEPT -A FORWARD -i br1 -o br1 -j ACCEPT -A FORWARD -i eth0 -o eth0 -j ACCEPT root@vm01:~# iptables -S -t nat -P PREROUTING ACCEPT -P INPUT ACCEPT -P OUTPUT ACCEPT -P POSTROUTING ACCEPT -A POSTROUTING -s 192.168.3.0/24 ! -d 192.168.3.0/24 -j MASQUERADE -A POSTROUTING ! -s 192.168.3.0/24 -d 192.168.3.0/24 -j MASQUERADE --------- Some additional information that might be helpful: root@vm01:~# virsh version Compiled against library: libvir 0.9.12 Using library: libvir 0.9.12 Using API: QEMU 0.9.12 Running hypervisor: QEMU 1.1.2 --------- root@vm01:~# uname -a Linux vm01.cluster 3.2.0-4-amd64 #1 SMP Debian 3.2.46-1 x86_64 GNU/Linux --------- I don't know if it's really libvirt-related but perhaps someone here has an idea what to try. Any advice on this is really appreciated, as I am at my wits' end. Thank you in advance... :) Kind regards Kolja Scheffler

2 3

[libvirt-users] virsh "cpu-stats" not working !!!
by SHREE DUTH AWASTHI 23 Aug '13

23 Aug '13

> > Hi All, > > Can you please guide us in solving this issue. > > Version used : libvirt-1.0.6 > # rpm -qa | egrep "libvirt|qemu" > qemu-kvm-0.14.1-1_WR4.3.x86_64_XXX.x86_64 > libvirt-1.0.6-1_WR4.3.x86_64_XXX.2.x86_64 > > Problem : > > # virsh cpu-stats CLA-0 > error: Failed to retrieve CPU statistics for domain 'CLA-0' > *error: internal error error accessing cgroup cpuacct for vcpu* > > Related info : > > # cat /proc/cgroups > #subsys_name hierarchy num_cgroups enabled > cpuset 3 4 1 > ns 0 1 1 > cpu 1 6 1 > cpuacct 7 3 1 > memory 2 3 1 > freezer 0 1 1 > net_cls 0 1 1 > blkio 0 1 1 > > # cat /proc/mounts | grep cpu > cpu /dev/cgroup_cpu cgroup rw,relatime,cpu 0 0 > cpuset /dev/cgroup_cpuset cgroup rw,relatime,cpuset 0 0 > cpuacct /dev/cgroup_cpuacct cgroup rw,relatime,cpuacct 0 0 > > # cat /proc/self/cgroup > 7:cpuacct:/ > 3:cpuset:/ > 2:memory:/ > 1:cpu:/ > > virsh # vcpucount CLA-0 > maximum config 3 > maximum live 3 > current config 3 > current live 3 > > virsh # vcpuinfo CLA-0 > VCPU: 0 > CPU: 0 > State: running > CPU time: 5.7s > CPU Affinity: yyyyyyyy > > virsh # vcpupin CLA-0 --current > VCPU: CPU Affinity > ---------------------------------- > 0: 0-7 > 1: 0-7 > 2: 0-7 > > # cat /dev/cgroup_cpuacct/cpuacct.usage_percpu > 532996776861 117928641102 125174572624 167825543709 155234053284 > 97350309867 122372010702 110640812251 > # cat /dev/cgroup_cpuacct/cpuacct.usage > 1431288376064 > # cat /dev/cgroup_cpuacct/cpuacct.stat > user 12148 > system 81469 > > # cat /dev/cgroup_cpuacct/*machine*/cpuacct.usage_percpu > 0 0 0 0 0 0 0 0 > # cat /dev/cgroup_cpuacct/*machine/*cpuacct.usage > 0 > > # chkconfig --list | grep cg > cgroups_mount 0:off 1:on 2:on 3:on 4:on 5:on 6:off > > We have also found that there is no "*cgroup*" directory created under * > "/sys/fs/".* We have tried mounting the same manually using the below > commands but we were not successful. > > mkdir -p /dev/cgroup_cpuacct > mount -t cgroup -o cpuacct cpuacct /dev/cgroup_cpuacct > > (or) > > mkdir -p /sys/fs/cgroup > mount -t cgroup -o cgroup cgroup /sys/fs/cgroup > > > Please find the the domain info used for the creation of VM in the > attachment. Please let us know, how to proceed futher. > > Your inputs would be of great help to us. > > Thanks and Regards, > Shree Duth Awasthi. >

2 4

[libvirt-users] Information needed regarding the libvirt version libvirt-1.0.6-1
by arun abhinay 23 Aug '13

23 Aug '13

Hi, We have upgraded the libvirt version from libvirt-1.0.5 to libvirt-1.0.6-1 on our linux machine. After this upgrade "virsh cpu-stats <domain>" command is not working on our HardWare. *virsh # cpu-stats test error: Failed to retrieve CPU statistics for domain 'test' error: internal error error accessing cgroup cpuacct for vcpu* ** *# cat /proc/cgroups #subsys_name hierarchy num_cgroups enabled cpuset 3 4 1 ns 0 1 1 cpu 1 6 1 cpuacct 7 3 1 memory 2 3 1 freezer 0 1 1 net_cls 0 1 1 blkio 0 1 1 * *# chkconfig --list | grep cg cgroups_mount 0:off 1:on 2:on 3:on 4:on 5:on 6:off* We have also found that there is no "cgroup" directory created by kenel under "/sys/fs/". We suspect that the 'cgroup' controllers are not mounted properly and hence the issue is observed. While using the libvirt-1.0.5 version below mentioned mount commands were sufficient to mount cgroup controllers *mkdir -p /dev/cgroup_cpuacct mount -t cgroup -o cpuacct cpuacct /dev/cgroup_cpuacct* As cgroups hieracrhy inside libvirtd has changed in libvirt-1.0.6-1, we feel that the above commands are now not sufficient. We feel we have to do some more steps get the 'cgroups' mounted properly on our hardware. Since we are new to libvirt and can you please help us by providing some pointers to fix the above issue and get cpu-stats working on our HardWare. Since we have to fix this on top priority, can you please reply as soon as possible. Please let us know if you need any further information from our side. Thanks in advance. BR Abhinay

2 7

[libvirt-users] the error for define the xml
by Qian Feng 23 Aug '13

23 Aug '13

Hi, everyone, I have already install libvirt. I want to use it on qemu. I have set up qemu too. I do not know how to let libvirt manage the vms for qemu. What i did ist that: 1) create the xml under /etc/libvirt/qemu/demo.xml 2) # virsh define /etc/libvirt/qemu/demo.xml There is error as following: error: Failed to define domain from /etc/libvirt/qemu/demo.xml error: internal error No guest options available for arch 'x86_64' Could everyone help me? Thank you very much. The demo.xml is following: <domain type='kvm'> <name>test</name> //\u865a\u62df\u673a\u540d\u79f0 <memory>1048576</memory> //\u6700\u5927\u5185\u5b58\uff0c\u5355\u4f4dk <currentMemory>1048576</currentMemory> //\u53ef\u7528\u5185\u5b58\uff0c\u5355\u4f4dk <vcpu>8</vcpu> //\u865a\u62dfcpu\u4e2a\u6570 <os> <type arch='x86_64' machine='pc'>hvm</type> <boot dev='cdrom'/> //\u5149\u76d8\u542f\u52a8 </os> <features> <acpi/> <apic/> <pae/> </features> <clock offset='localtime'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>destroy</on_crash> <devices> <emulator>/usr/libexec/qemu-kvm</emulator> <disk type='file' device='disk'> <driver name='qemu' type='qcow2'/> <source file='/var/lib/libvirt/images/winxpsp3-regression.qcow2'/> //\u76ee\u7684\u955c\u50cf\u8def\u5f84 <target dev='hda' bus='ide'/> </disk> <disk type='file' device='cdrom'> <source file='/var/lib/libvirt/images/ubuntu.iso'/> //\u5149\u76d8\u955c\u50cf\u8def\u5f84 <target dev='hdb' bus='ide'/> </disk> <interface type='bridge'> //\u865a\u62df\u673a\u7f51\u7edc\u8fde\u63a5\u65b9\u5f0f <source bridge='kvmbr0'/> //\u5f53\u524d\u4e3b\u673a\u7f51\u6865\u7684\u540d\u79f0 <mac address="00:16:3e:5d:aa:a8"/> //\u4e3a\u865a\u62df\u673a\u5206\u914dmac\u5730\u5740\uff0c\u52a1\u5fc5\u552f\u4e00\uff0c\u5426\u5219dhcp\u83b7\u5f97\u540c\u6837ip,\u5f15\u8d77\u51b2\u7a81 </interface> <input type='mouse' bus='ps2'/> <graphics type='vnc' port='-1' autoport='yes' listen = '0.0.0.0' keymap='en-us'/>//vnc\u65b9\u5f0f\u767b\u5f55\uff0c\u7aef\u53e3\u53f7\u81ea\u52a8\u5206\u914d\uff0c\u81ea\u52a8\u52a01\uff0c\u53ef\u4ee5\u901a\u8fc7virsh vncdisplay\u6765\u67e5\u8be2 </devices> </domain> -- Have a nice day! Qian

2 1

[libvirt-users] virConnectDomainEventRegisterAny problem
by Alexandr 23 Aug '13

23 Aug '13

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 good day. i trying to make callback function for VIR_DOMAIN_EVENT_ID_LIFECYCLE, i have successfully registering callback, but it never called, i need to know when domain started, stopped or crashed, i have write following code static int domain_event_handler(virConnectPtr conn, virDomainPtr dom, int event, int detail, void * opaque) { switch(event) { } return 0; } ..... 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; } ..... but "domain_event_handler" is never called, what is wrong here ? -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.21 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJSE/XIAAoJEH3ap8veG8EHNO4H/iu8FLlL2fXMrWC6Z75fgoL+ 1LKH504VD/oZ4UUyEMURdywNOp4cHmXQOiCbgN3ardFMjhFQ/hwbDHgBXLuQGsr0 yXyUoX8ft3sEojTJS0ys9J+vkFcqm/eOykCeAKRPHQPAeUivKQpRhx3+6mXDJ3z8 OyTGqD5GFdhgktz/4IbqeOp4PKI55QXVrrsB2414hPykBq6xsRqbtQC9QZ/Df2SP kHGAymEYK+i242xJYZSxTy5BLH+JNa1yzJNE+XoAtaMz2ypRg3ycMipo0io+8VMy KJWRxmq3O/ZKrqGsI++D7ugAkkLCLUbpyC35fXK7GXAEnxk/uTkQInU7F26FdJs= =32hk -----END PGP SIGNATURE-----

3 7

[libvirt-users] Creating a snapshot from a KVM VM fails
by Tobias Brunner 22 Aug '13

22 Aug '13

Hi, I'm trying to create a snapshot from a KVM VM: # virsh snapshot-create one-5 error: unsupported configuration: internal checkpoints require at least one disk to be selected for snapshot How can I debug this error message and what does it mean? Some system information: * Ubuntu 13.04 64Bit * virsh --version: 1.0.2 * The XML of the VM is below Thanks for all help... Cheers, Tobias <domain type='kvm' id='4'> <name>one-5</name> <uuid>cff38c6a-2996-7709-c4f4-0ed826c2fb02</uuid> <memory unit='KiB'>524288</memory> <currentMemory unit='KiB'>524288</currentMemory> <vcpu placement='static'>1</vcpu> <cputune> <shares>1024</shares> </cputune> <os> <type arch='x86_64' machine='pc-i440fx-1.4'>hvm</type> <boot dev='hd'/> </os> <features> <acpi/> </features> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>destroy</on_crash> <devices> <emulator>/usr/bin/kvm</emulator> <disk type='network' device='disk'> <driver name='qemu' type='raw' cache='none'/> <source protocol='rbd' name='one/one-5-5-0'/> <target dev='hda' bus='ide'/> <alias name='ide0-0-0'/> <address type='drive' controller='0' bus='0' target='0' unit='0'/> </disk> <disk type='file' device='cdrom'> <driver name='qemu' type='raw'/> <source file='/var/lib/one//datastores/0/5/disk.1'/> <target dev='hdb' bus='ide'/> <readonly/> <alias name='ide0-0-1'/> <address type='drive' controller='0' bus='0' target='0' unit='1'/> </disk> <controller type='ide' index='0'> <alias name='ide0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> </controller> <controller type='usb' index='0'> <alias name='usb0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/> </controller> <interface type='bridge'> <mac address='02:00:c0:a8:31:97'/> <source bridge='vmbr0'/> <virtualport type='openvswitch'> <parameters interfaceid='6e492227-cd8b-f472-9f3d-1161ddf9ecfc'/> </virtualport> <target dev='vnet0'/> <alias name='net0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> <input type='mouse' bus='ps2'/> <graphics type='vnc' port='5905' autoport='no' listen='0.0.0.0'> <listen type='address' address='0.0.0.0'/> </graphics> <video> <model type='cirrus' vram='9216' heads='1'/> <alias name='video0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> </video> <memballoon model='virtio'> <alias name='balloon0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> </memballoon> </devices> <seclabel type='dynamic' model='apparmor' relabel='yes'> <label>libvirt-cff38c6a-2996-7709-c4f4-0ed826c2fb02</label> <imagelabel>libvirt-cff38c6a-2996-7709-c4f4-0ed826c2fb02</imagelabel> </seclabel> </domain>

4 4

[libvirt-users] QemuAgentCommand API documents
by Praveen Kumar 22 Aug '13

22 Aug '13

Hi, I was going through the maillist[0] and found virDomainQemuAgentCommand() support function added to python module. I also checked the API documentation and didn't able to find any pointer for this particular function. Is API documentation[1] not updated with these function details yet or I am looking to a wrong place? Another question is I am using libvirt-1.0.5.5-1.fc19.x86_64 and using virsh with qemu-agent-command I am able to execute stuff from host. but I am not able to find any API method to do that, any suggestions? [0] http://www.redhat.com/archives/libvir-list/2012-August/msg00489.html [1] http://libvirt.org/html/libvirt-libvirt.html -- Praveen Kumar

2 3

[libvirt-users] Running hypervisor upgrade problem
by Naor Shlomo 21 Aug '13

21 Aug '13

Hello experts, I tried upgrading libvirt and compiled version 1.1.1 The problem is that when I run "virsh version" I get the following output: Compiled against library: libvirt 1.1.1 Using library: libvirt 1.1.1 Using API: QEMU 1.1.1 Running hypervisor: QEMU 0.12.1 The problem is that it reports that the Running hypervisor is: QEMU 0.12.1 I wanted to upgrade everything to the latest stable so I also upgraded the qemu-kvm to 1.5.2 but for some reason the reported qemu hypervisor is left outdated. Could you please tell me why is that and how do I upgrade it to the latest? Thanks in advance, Naor

2 1

[libvirt-users] lxc-enter-namespace not supportted with python?
by hzguanqiang＠corp.netease.com 21 Aug '13

21 Aug '13

Hi, Daniel. It seems that the virsh command 'lxc-enter-namespace' encapsulates several functions just as 'virDomainLxcOpenNamespace', 'virDomainGetSecurityLabel', 'virDomainLxcEnterSecurityLabel' , 'virDomainLxcEnterNamespace', 'virFork', etc. And I found only 'virDomainLxcOpenNamespace' is provided by python package 'libvirtmod_lxc '. Does this mean that 'lxc-enter-namespace' can only be used through virsh command and not supported with python? Thanks ------------------ Best regards! GuanQiang 2013-08-21

2 1

[libvirt-users] Stop the relabeling of CD images
by Cristian Ciupitu 21 Aug '13

21 Aug '13

Hi, I'm installing the operating system for my virtual machines from CD images and I would like for libvirtd to stop relabeling the corresponding files. Since the installation media is no big secret, I have labeled the files with system_u:object_r:public_content_t:s0, but libvirtd keeps changing them to system_u:object_r:svirt_image_t:s0. It also changes the ownership to qemu:qemu. This means that I can not make the files immutable (chattr +i). The XML dump of the machine looks like this : <disk type='file' device='cdrom'> <driver name='qemu' type='raw'/> <source file='/mnt/extra/Software/Linux/Fedora/Fedora-Live-Desktop-x86_64-19/Fedora-Live-Desktop-x86_64-19-1.iso'> <seclabel relabel='no'/> </source> <target dev='hdc' bus='ide'/> <readonly/> <shareable/> <address type='drive' controller='0' bus='1' target='0' unit='0'/> </disk> I am using libvirt-daemon-1.1.1-2.fc19.x86_64. You might also find interesting bug #568935 [1]. So how do I stop libvirtd from changing the permissions of the CD images? Thank you, Cristian Ciupitu [1]: https://bugzilla.redhat.com/show_bug.cgi?id=568935

3 5

Re: [libvirt-users] Multi Queue KVM Support
by Paolo Bonzini 20 Aug '13

20 Aug '13

Il 20/08/2013 13:13, Naor Shlomo ha scritto: > Hi Paolo and thanks for your help. > > I upgraded the following (compiled from source) > qemu : 1.5.2 stable > libvirt : 1.1.1 > > but for some reason when I run the version command inside virsh: > > Compiled against library: libvirt 1.1.1 > Using library: libvirt 1.1.1 > Using API: QEMU 1.1.1 > Running hypervisor: QEMU 0.12.1 > > It says that my running Hypervisor is QEMU 0.12.1 > > Could you please tell me what did I miss, how do I upgrade the hypervisor? Not sure. Adding the libvirt-users mailing list. > Thanks, > Naor > > -----Original Message----- > From: Paolo Bonzini [mailto:paolo.bonzini@gmail.com] On Behalf Of Paolo Bonzini > Sent: Tuesday, August 20, 2013 12:28 PM > To: Naor Shlomo > Cc: kvm(a)vger.kernel.org > Subject: Re: Multi Queue KVM Support > > Il 20/08/2013 05:21, Naor Shlomo ha scritto: >> Hi Paolo, >> >> The host is running CentOS release 6.3 (Final). >> I did "yum upgrade libvirt" and "yum upgrade qemu-kvm" a couple of days ago and ended up with these versions. >> >> What do you suggest regarding qemu? compile 6.5 or later myself? > > RHEL/CentOS 6.5 is not yet out, it's still a few months before it's released. > > You can compile QEMU 1.6 from source, or wait for CentOS to have the feature. > > Paolo > >> I appreciate your help, >> Naor >> >> -----Original Message----- >> From: Paolo Bonzini [mailto:paolo.bonzini@gmail.com] On Behalf Of >> Paolo Bonzini >> Sent: Monday, August 19, 2013 11:22 PM >> To: Naor Shlomo >> Cc: kvm(a)vger.kernel.org >> Subject: Re: Multi Queue KVM Support >> >> Il 19/08/2013 13:29, Naor Shlomo ha scritto: >>> Hello experts, >>> >>> I am trying to use the multi queue support on a Linux guest running Kernel 3.9.7. >>> >>> The host's virsh version command reports the following output: >>> 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 >> >> Is it RHEL or CentOS or Scientific Linux, or something else? If RHEL/CentOS, what release? >> >>> The problem is that virtio_has_feature(vdev, VIRTIO_NET_F_MQ) returns FALSE and I don't know why. >> >> This version of QEMU is too old. It's possible that 6.5 will have multiqueue, but I'm not entirely sure. >> >> Paolo >> -- >> To unsubscribe from this list: send the line "unsubscribe kvm" in the >> body of a message to majordomo(a)vger.kernel.org More majordomo info at >> http://vger.kernel.org/majordomo-info.html >> >

1 0

[libvirt-users] Adding network interfaces to VMs created on ESX hypervisor
by varun bhatnagar 19 Aug '13

19 Aug '13

Hi, I want to create/attach two "internal" and one "host-only" interface to my node created by libvirt on ESX hypervisor. Is it possible to do so? If yes can anyone send a template of xml file? If it is not possible then is there any alternative for this? Regards, Varun

1 0