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[libvirt-users] permission denied when setting up VMchannel with libvirt
by 罗卫梁 30 Nov '11

30 Nov '11

Hi, I am trying to set up vmchannel between the host and guest os. However, "sudo virsh start vm1" always gave me this error: ************************************************************* error: Failed to start domain vm1 error: internal error Process exited while reading console log output: char device redirected to /dev/pts/5 bind(unix:/tmp/foo): Permission denied chardev: opening backend "socket" failed ************************************************************* Related xml is: ************************************************************* <channel type='unix'> <source mode='bind' path='/tmp/foo'/> <target type='virtio' name='channel.port.0'/> <address type='virtio-serial' controller='0' bus='0' port='1'/> </channel> ************************************************************* I can succeed while I manually run the guest os by: ************************************************************* sudo kvm -device virtio-serial \ -chardev socket,path=/tmp/foo,server,nowait,id=foo \ -device virtserialport,chardev=foo,name=org.fedoraproject.port.0\ /path/to/vm1.img ************************************************************* I also noticed that libvirt is able to create socke /var/lib/libvirt/qemu/vm1.monitor every time. I can't win even I change the unix socket path to "/var/lib/libvirt/qemu/foo" Any information will be appreciated! Thanks, Will

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[libvirt-users] virt-manager / ssh (publickey)
by Shaun Glass 29 Nov '11

29 Nov '11

Good day All, I have experienced the following ... I have a rhel 6.1 server running qemu-kvm. I have setup my desktop for a publickey login (root user) to said server so that I may manage the server (qemu-kvm) via the desktop with virt-manager. However, I connect just fine, but cannot create vm's. I get : "No hypervisor options where found for this connection" My laptop does run qemu-kvm via virt-manager and so I decided to setup a publickey login as before and guess what ... I can create vm's. It seems virt-manager bases the creation of vm's based on the hardware / software of the machine it is launched from and not the machine it is connecting to. Is there a workaround / config change etc that can be done so that virt-manager uses the hardware / software configuration of the system it is connecting to ? Regards Shaun Glass

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[libvirt-users] VM Manager for Android
by KaBuTe 29 Nov '11

29 Nov '11

To whom it may concern, I send this email to this list to report that I've released a small application for Android that uses libvirt over SSH. It is still under development and it has little features (Start/Destroy/Info) but I'll add more soon. You can check it here: https://market.android.com/details?id=vm.manager ------------------------------------ Diego Pérez kabute(a)kabute.org

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[libvirt-users] Failed to start a "virtual machine " service on RHCS in CentOS 6
by xuteng 25 Nov '11

25 Nov '11

Hi， All: I have two physical machines as KVM hosts (clusterA.RHCS and clusterB.RHCS) , an iscsi target set into GFS. All I want is a HA Cluster which could migrate all the virtual machines on a node to another when the first node failed into some error status. So I created a cluster "cluster" using RHCS ,added the two hosts into the cluster . created a fence device . for every virtual machine on clusterA , create a service ,added a resouce which type is "virtual machine" , and set it's properties. But when I start the service ,I got these errors in /var/log/message : [root@clusterA ~]# tail -f /var/log/messages Nov 24 16:19:29 clusterA libvirtd: Could not find keytab file: /etc/libvirt/krb5.tab: Permission denied Nov 24 16:19:30 clusterA modclusterd: startup succeeded Nov 24 16:19:48 clusterA rgmanager[6754]: Executing /etc/init.d/httpd status Nov 24 16:19:56 clusterA modcluster: Starting service: wuguang-xp on node Nov 24 16:19:56 clusterA rgmanager[2198]: Stopping service vm:wuguang-xp Nov 24 16:19:56 clusterA rgmanager[6850]: Using /etc/libvirt/qemu/wuguang-xp.xml instead of searching /etc/libvirt/qemu Nov 24 16:19:56 clusterA rgmanager[6906]: xend/libvirtd is dead; cannot stop wuguang-xp Nov 24 16:19:56 clusterA rgmanager[2198]: stop on vm "wuguang-xp" returned 1 (generic error) Nov 24 16:19:56 clusterA rgmanager[2198]: Marking vm:wuguang-xp as 'disabled', but some resources may still be allocated! Nov 24 16:19:56 clusterA rgmanager[2198]: Service vm:wuguang-xp is disabled But I set the libvirt tcp authority to "none" , here is my libvirtd.conf: listen_tls = 0 listen_tcp = 1 tcp_port = "16509" auth_tcp = "none" my cluster.conf is : <?xml version="1.0"?> <cluster config_version="83" name="cluster"> <fence_daemon clean_start="0" post_fail_delay="0" post_join_delay="3"/> <clusternodes> <clusternode name="clusterA.RHCS" nodeid="1" votes="1"> <fence> <method name="fence1"> <device name="fence1"/> </method> </fence> </clusternode> <clusternode name="clusterB.RHCS" nodeid="2" votes="1"> <fence> <method name="fence2"> <device name="fence2"/> </method> </fence> </clusternode> </clusternodes> <cman expected_votes="1" two_node="1"/> <fencedevices> <fencedevice agent="fence_scsi" name="fence1" nodename="clusterA.RHCS"/> <fencedevice agent="fence_scsi" name="fence2" nodename="clusterB.RHCS"/> </fencedevices> <rm> <failoverdomains> <failoverdomain name="FD" nofailback="0" ordered="1" restricted="1"> <failoverdomainnode name="clusterA.RHCS" priority="1"/> <failoverdomainnode name="clusterB.RHCS" priority="2"/> </failoverdomain> </failoverdomains> <resources> <ip address="192.168.6.250/24" monitor_link="on" sleeptime="10"/> <script file="/etc/init.d/httpd" name="www_script"/> <clusterfs device="/dev/dm-0" force_unmount="on" fsid="56449" fstype="gfs2" mountpoint="/var/lib/libvirt/images/iscsi" name="gfs2" self_fence="on"/> </resources> <service autostart="1" domain="FD" exclusive="0" name="www_service" recovery="relocate"> <ip ref="192.168.6.250/24"/> <script ref="www_script"/> <clusterfs ref="gfs2"/> </service> <vm autostart="1" domain="FD" exclusive="0" migrate="live" name="wuguang-xp" path="/etc/libvirt/qemu" recovery="relocate" xmlfile="/etc/libvirt/qemu/wuguang-xp.xml"/> </rm> </cluster> What's wrong with my configuration of RHCS or libvirt? Thanks in advance wade xuteng via foxmail

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[libvirt-users] Difference between "Max Memory" and "Used Memory"
by Jérôme Gallard 23 Nov '11

23 Nov '11

Hello, I am new on this mailing list, so If I do something wrong, don't hesitate to tell me :-) I am using the following version of libvirt : Compiled against library: libvir 0.8.8 Using library: libvir 0.8.8 Using API: QEMU 0.8.8 Running hypervisor: QEMU 0.14.0 I would like to understand the difference between "Max Memory" and "Used Memory" returned by a "virsh dominfo" command. In my configuration both values are equal. This surprises me because my VM is not using all its memory. Perhaps I miss something ? Thank you very much for your help. Regards, Jérôme

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[libvirt-users] libvirt and linux-vserver
by Christian Parpart 23 Nov '11

23 Nov '11

Hi, I was just googling around for linux-vserver support in libvirt, however, only found sad ppl complaining about the fact, that there is still no linux-vserver support in libbirt. Despite the fact, that there was some kind of lag in review by more than one person, why isn't it still in? so... merely two years after? I think once the patched would have been applied, ppl would start using it, and then also report bugs in case there were some not yet found by the author nor the single reviewer :) Best regards, Christian Parpart.

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[libvirt-users] Ruby libvirt gem: state reasons
by Ken Coar 18 Nov '11

18 Nov '11

Does anyone know of a way to use the Ruby bindings to find out the 'reason' value for the state of the VM? Such as obtaining VIR_DOMAIN_RUNNING_BOOTED for a running domain? -- #ken B-)} Ken Coar, Sanagendamgagwedweinini IT Engineering Tower, Red Hat/RDU "Millennium hand and shrimp!"

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[libvirt-users] Defined VM goes missing in multi-threaded environment.
by Sharad Mishra 18 Nov '11

18 Nov '11

In a multi-threaded environment where multiple threads are trying to get list of all VMs on host, we have seen that at times this list is missing couple of VMs. The code used is fairly simple, it makes three libvirt calls. 1. Call virConnectNumOfDefinedDomains() to get number of defined domains. 2. Call virConnectNumOfDomains() to get a list of active domains. 3. If there are defined domains, then call virConnectListDefinedDomains (conn, (char **)names, n_names), where n_names is the count returned from #1. The count returned from #3 is less than the one returned from #1. I have bumped up the connection count in libvirtd.conf to 100, and using 20 threads. On average I get one missing defined VM every 5 runs of this test. I have 25 running VMs and 8 defined VMs on this host. # rpm -aq | grep libvirt libvirt-python-0.8.7-18.el6_1.1.x86_64 libvirt-0.8.7-18.el6_1.1.x86_64 libvirt-cim-0.5.14-1.el6.x86_64 libvirt-client-0.8.7-18.el6_1.1.x86_64 Its RHEL 6.1 running 2.6.32-131.17.1.el6.x86_64 Regards, Sharad Mishra

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[libvirt-users] [libvirt-user] questions about disk driver virtio and charmonitor
by Chang Liu 17 Nov '11

17 Nov '11

hi all, I have two questions about libvirt. At first, how can I write a XML file that libvirt could give me a command that include this: if=virtio. -drive file=/dev/vg.vmms/lvm-v097218.sqa.cm4,if=none,id=drive-ide0-0-0,format=raw -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 event I have let the <target dev=vda bus=virtio> the XML file also make the command not include virtio, it's like this: -drive file=/dev/vg.vmms/lvm-v097226.sqa.cm4,if=none,id=drive-virtio-disk0,format=raw,cache=none -device virtio-blk-pci,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0 and my question is, this is command args could enable virtio? or there is some other XML format could let the if=virtio. Second when I boot the vm in the second step after use the kickstart install it. Once in a while, it occurs an error that: monitor socket did not show up.: No such file or > Traceback (most recent call last): File "/home/lingjiao.lc/vmms/backserv/bin/../lib/virtmgr.py<http://lingjiao.lc/vmms/backserv/lib/virtmgr.py>", line 1007, in request_vm dom.create() File "/usr/lib64/python2.6/site-packages/libvirt.py", line 325, in create if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self) libvirtError: monitor socket did not show up.: No such file or directory But if I reinstall it, it will be ok. If I install hundreds of VMs once, I think this is a headache. Could anybody help me, how can I disable the charmonitor or solve these problem. Thanks. ________________________________ This email (including any attachments) is confidential and may be legally privileged. If you received this email in error, please delete it immediately and do not copy it or use it for any purpose or disclose its contents to any other person. Thank you. 本电邮(包括任何附件)可能含有机密资料并受法律保护。如您不是正确的收件人，请您立即删除本邮件。请不要将本电邮进行复制并用作任何其他用途、或透露本邮件之内容。谢谢。

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[libvirt-users] libvirt uninstall @ install problem??
by 张光鹏 17 Nov '11

17 Nov '11

Hi: I have a rhel6.1 system, before I installed libvirt0.9.6.tar.gz, it already have installed libvirt-0.8.7-xxx.rpm. Can someone tell me how to uninstall the libvirt-0.8.7XXX.rpm ,and then i can install libvirt0.9.6.tar.gz and use it . Thanks! zhanggp(a)neusoft.com --------------------------------------------------------------------------------------------------- Confidentiality Notice: The information contained in this e-mail and any accompanying attachment(s) is intended only for the use of the intended recipient and may be confidential and/or privileged of Neusoft Corporation, its subsidiaries and/or its affiliates. If any reader of this communication is not the intended recipient, unauthorized use, forwarding, printing, storing, disclosure or copying is strictly prohibited, and may be unlawful.If you have received this communication in error,please immediately notify the sender by return e-mail, and delete the original message and all copies from your system. Thank you. ---------------------------------------------------------------------------------------------------

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