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[libvirt-users] Problem with libvirt daemon
by Wouter - Iamotor 09 Nov '11

09 Nov '11

Hello, I have a problem with the libvirt daemon. I have a little php script which should connect with libvirt, but it won't. When I try to start the libvirt daemon I get this error (using the command libvirtd --listen): 2011-11-09 19:35:18.095: 3560: info : libvirt version: 0.9.7 2011-11-09 19:35:18.095: 3560: error : virPidFileAcquirePath:345 : Failed to acquire pid file '/var/run/libvirtd.pid': Resource temporarily unavailable So the daemon won't start and isn't started yet. If I check if the service is running with ps -ef | grep libvirtd I get this output: root 2865 1 0 15:50 ? 00:00:00 /usr/sbin/libvirtd -d root 3149 1 0 19:17 ? 00:00:00 libvirtd -d root 3206 1 0 19:17 ? 00:00:00 libvirtd -dl root 3300 1 0 19:20 ? 00:00:00 libvirtd --listen --daemon root 3356 1 0 19:21 ? 00:00:00 libvirtd --listen --daemon root 3564 3077 0 19:36 pts/0 00:00:00 grep --color=auto libvirtd Here you can see that the service isn't running. How can I fix this problem. There is a .pid file in the /var/run/ directory. I already deleted it and used the command libvirtd -daemon -listen but it won't start. It doesn't show any output but when I use the ps -ef command, I see that the service is not running. Can you please help me? With kind regards, Wouter.

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[libvirt-users] libvirt, OSX and VirtualBox - how?
by Brian Candler 09 Nov '11

09 Nov '11

I have a new OSX Lion Macbook and would like to control VirtualBox using "virsh" (as I do with KVM under Ubuntu). I've got this far: * Installed VirtualBox * Installed libvirt (brew install libvirt) But now I'm a bit stuck :-) I ran VirtualBox itself, and created a test VM successfully. If I try to use virsh, this is what I get: Brians-MacBook-Air:~ $ virsh -c vbox:///session error: internal error unable to initialize VirtualBox driver API error: failed to connect to the hypervisor Brians-MacBook-Air:~ $ virsh -c vbox+unix:///session error: Failed to connect socket to '@/Users/brian/.libvirt/libvirt-sock': No such file or directory error: failed to connect to the hypervisor If I try to start libvirtd, this is what I get: Brians-MacBook-Air:~ $ /usr/local/sbin/libvirtd 00:00:18.970: -1: info : libvirt version: 0.9.6 00:00:18.970: -1: error : virNetSocketNewListenUNIX:340 : Failed to bind socket to '@/Users/brian/.libvirt/libvirt-sock': No such file or directory [but directory /Users/brian/.libvirt was created] However, VirtualBox itself is running OK: Brians-MacBook-Air:~ $ VBoxManage list vms "test" {d0d74c25-1dfc-44a4-8a2b-1d25b7972e7c} Furthermore, dtruss suggests that virsh is finding the installed VirtualBox: Brians-MacBook-Air:~ $ sudo dtruss -f virsh -c vbox:///session 2>&1 | grep -i virtualbox error: internal error unable to initialize VirtualBox driver API 48916/0x3cc08: write_nocancel(0x2, "internal error unable to initialize VirtualBox driver API\n\0", 0x3A) = 58 0 48916/0x3cc08: access("/usr/lib/virtualbox/VBoxXPCOMC.dylib\0", 0x0, 0x0) = -1 Err#2 48916/0x3cc08: access("/usr/lib/virtualbox-ose/VBoxXPCOMC.dylib\0", 0x0, 0x0) = -1 Err#2 48916/0x3cc08: access("/usr/lib64/virtualbox/VBoxXPCOMC.dylib\0", 0x0, 0x0) = -1 Err#2 48916/0x3cc08: access("/usr/lib64/virtualbox-ose/VBoxXPCOMC.dylib\0", 0x0, 0x0) = -1 Err#2 48916/0x3cc08: access("/usr/lib/VirtualBox/VBoxXPCOMC.dylib\0", 0x0, 0x0) = -1 Err#2 48916/0x3cc08: access("/opt/virtualbox/VBoxXPCOMC.dylib\0", 0x0, 0x0) = -1 Err#2 48916/0x3cc08: access("/opt/VirtualBox/VBoxXPCOMC.dylib\0", 0x0, 0x0) = -1 Err#2 48916/0x3cc08: access("/opt/virtualbox/i386/VBoxXPCOMC.dylib\0", 0x0, 0x0) = -1 Err#2 48916/0x3cc08: access("/opt/VirtualBox/i386/VBoxXPCOMC.dylib\0", 0x0, 0x0) = -1 Err#2 48916/0x3cc08: access("/opt/virtualbox/amd64/VBoxXPCOMC.dylib\0", 0x0, 0x0) = -1 Err#2 48916/0x3cc08: access("/opt/VirtualBox/amd64/VBoxXPCOMC.dylib\0", 0x0, 0x0) = -1 Err#2 48916/0x3cc08: access("/usr/local/lib/virtualbox/VBoxXPCOMC.dylib\0", 0x0, 0x0) = -1 Err#2 48916/0x3cc08: access("/usr/local/lib/VirtualBox/VBoxXPCOMC.dylib\0", 0x0, 0x0) = -1 Err#2 48916/0x3cc08: access("/Applications/VirtualBox.app/Contents/MacOS/VBoxXPCOMC.dylib\0", 0x0, 0x0) = 0 0 48916/0x3cc08: stat64("/Applications/VirtualBox.app/Contents/MacOS/VBoxXPCOMC.dylib\0", 0x7FFF685D0980, 0x7FFF685D1810) = 0 0 48916/0x3cc08: open("/Applications/VirtualBox.app/Contents/MacOS/VBoxXPCOMC.dylib\0", 0x0, 0x0) = 4 0 48916/0x3cc08: stat64("/Applications/VirtualBox.app/Contents/MacOS/VBoxRT.dylib\0", 0x7FFF685D0750, 0x7FFF685D15D0) = 0 0 48916/0x3cc08: open("/Applications/VirtualBox.app/Contents/MacOS/VBoxRT.dylib\0", 0x0, 0x0) = 4 0 48916/0x3cc08: stat64("/Applications/VirtualBox.app/Contents/MacOS/VBoxXPCOM.dylib\0", 0x7FFF685D0750, 0x7FFF685D15D0) = 0 0 48916/0x3cc08: open("/Applications/VirtualBox.app/Contents/MacOS/VBoxXPCOM.dylib\0", 0x0, 0x0) = 4 0 But looking at the dtruss output shortly before it prints the error message doesn't give me any clues as to what's going wrong. ... 48916/0x3cc08: stat64("/usr/lib/libbsm.0.dylib\0", 0x7FFF685D0090, 0x7FFF685D0F10) = 0 0 48916/0x3cc08: stat64("/System/Library/PrivateFrameworks/Heimdal.framework/Versions/A/Heimdal\0", 0x7FFF685D0290, 0x7FFF685D1110) = 0 0 48916/0x3cc08: stat64("/usr/lib/libncurses.5.4.dylib\0", 0x7FFF685D05A0, 0x7FFF685D1420) = 0 0 48916/0x3cc08: getpid(0x7FFF685D1628, 0x108A16004, 0xEA60) = 48916 0 48916/0x3cc08: open("/dev/dtracehelper\0", 0x2, 0xFFFFFFFFFFFFFFB0) = 4 0 48916/0x3cc08: ioctl(0x4, 0x80086804, 0x7FFF685D1708) = 0 0 48916/0x3cc08: close(0x4) = 0 0 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: sigaction(0xD, 0x7FFF685D1978, 0x0) = 0 0 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: pipe(0x108BF1D90, 0x1000004, 0x7) = 4 0 48916/0x3cc08: fcntl(0x5, 0x3, 0x0) = 1 0 48916/0x3cc08: fcntl(0x5, 0x4, 0x5) = 0 0 48916/0x3cc08: fcntl(0x4, 0x3, 0x0) = 0 0 48916/0x3cc08: fcntl(0x4, 0x4, 0x4) = 0 0 48916/0x3cc08: fcntl(0x5, 0x1, 0x0) = 0 0 48916/0x3cc08: fcntl(0x5, 0x2, 0x1) = 0 0 48916/0x3cc08: fcntl(0x4, 0x1, 0x0) = 0 0 48916/0x3cc08: fcntl(0x4, 0x2, 0x1) = 0 0 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: getuid(0x7F9ABBC2B850, 0x108BED7A0, 0x0) = 0 0 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58) = -1 Err#3 48916/0x3cc08: write_nocancel(0x2, "error: \0", 0x7) = 7 0 48916/0x3cc08: write_nocancel(0x2, "internal error unable to initialize VirtualBox driver API\n\0", 0x3A) = 58 0 48916/0x3cc08: write_nocancel(0x2, "error: \0", 0x7) = 7 0 48916/0x3cc08: write_nocancel(0x2, "failed to connect to the hypervisor\n\0", 0x24) = 36 0 48916/0x3cc08: close(0x3) = 0 0 48916/0x3cc08: __sysctl(0x7FFF685D0F4C, 0x2, 0x7FFF685D0F38) = 0 0 48916/0x3cc08: bsdthread_register(0x7FFF8DCDCB68, 0x7FFF8DCDCB78, 0x2000) = 0 0 48916/0x3cc08: thread_selfid(0x7FFF8DCDCB68, 0x7FFF8DCDCB78, 0x0) = 248840 0 ... Has anybody got libvirt + OSX Lion + VirtualBox working, and if so, how did you do it? I see the same question asked here: http://stackoverflow.com/questions/7946994/libvirt-and-virtualbox-on-osx but unfortunately no response as yet. Thanks in advance, Brian.

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Re: [libvirt-users] ruby-libvirt 0.4.0
by Chris Lalancette 09 Nov '11

09 Nov '11

On 07/29/11 - 09:34:17AM, David M. Barlieb wrote: > Hi, I'm fairly new to using libvirt. I have RHEL6 servers running KVM > virtual environment. As I understand it, libvirt provides the tools to > the KVM environment so that I can create domains or virtual guests. So, > that being said, what does this ruby-libvirt provide me or enhance given > my current setup. > > > > I'll understabnd if this is a little rudimentary but I really do not > know who or where else to ask these types of question. I get quite a bit > of email from the libvirt-users groups about libvirt and really have no > idea if I can or should put any of these into my current setup, or if I > should be asking RedHat this. > > > > I certainly wouldn't mind testing and contributing to these effort to > enhance the libvirt tools and KVM hypervisor but think I need a better > understanding of exactly how libvirt and KVM interact and what the > enhancements bring to the table. In the future it is usually best to keep one of the lists on an email; that way, if I'm away or not responding, someone else can help you. I've added libvirt-users to this response. In any case, you have the right idea. Libvirt is a control plane for various different virtualization solutions. Arguably the most popular virtualization solution that libvirt can control is KVM, but it can also manage Xen, VMware ESX, LXC (linux containers), UML, etc. Libvirt provides both tools (like virsh and libvirtd) and APIs for interacting with virtual machines. The APIs are things like virDomainShutdown(), virDomainReboot(), etc. The ruby-libvirt package is a thin wrapper around these APIs, so that you can use this functionality from ruby programs. That is, you would be able to do something like: dom.reboot dom.shutdown from your ruby programs. There are also bindings for other languages such as python, php, and perl. There is a lot more information at http://libvirt.org, and there is more information specifically about the ruby bindings at http://libvirt.org/ruby -- Chris Lalancette

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[libvirt-users] libvirtError: internal error cannot find PCI address for balloon virtio
by Wouter 07 Nov '11

07 Nov '11

Hi guys, I have a little problem here. When I want to install a virtual machine I get this error: libvirtError: internal error cannot find PCI address for balloon virtio Libvirt is running on a debian 5 system with kvm and of course libvirt. How can I solve this problem, I searched on the Internet but there aren't posts about this problem yet. So I don't have an idea where to look for. I hope you guys can help me. With kind regards, Wouter.

1 0

[libvirt-users] virt-manager: create lxc app container hangs
by sean darcy 07 Nov '11

07 Nov '11

libvirt-0.9.6-2.fc15.x86_64 virt-manager-0.9.0-7.fc15.noarch I'm trying to use virt-manager create a simple lxc app container just to see how it works. App is /bin/sh, 128 megs, 1 cpu. All seems to go well, but when I click "Finish" and the "Creating Virtual Machine" box comes up, "Creating Domain..." stays at 0B though the slider keeps going back and forth. Nothing in /var/log/libvirt/libvirtd.log No relevant log in /var/log/libvirt/qemu/ Any help appreciated. sean

2 2

[libvirt-users] Finding out if Xen or KVM is used
by PREETHI RAMESH 06 Nov '11

06 Nov '11

I've got 2 doubts: 1.I've been trying to write an application using Libvirt's Java API which should run on both Xen and KVM running machines and execute the Xen or KVM code based on the hypervisor used. I want the physical machine to know if it's running Xen or KVM and execute only that code. While using getURI(), I need to use it as conn.getURI() but then I can't use conn without declaring it previously as Connect conn=new Connect("URI"); Is there any way to get the URI used and hence the hypervisor used? 2. This question concerns the usage of the listDomains(). When I run this piece of code in KVM, it works perfectly fine but throws an array out of bounds exception in Xen. Connect conn=null; conn = new Connect("xen:///", true); int[] id = conn.listDomains(); System.out.println("lD of VM " +id[0]); Thanks for your time. P Ramesh

2 1

[libvirt-users] Libvirt exiting and respawning
by Stephen Eilert 05 Nov '11

05 Nov '11

Hi, I'm trying to use Libvirt with LXC, under Ubuntu 11.04, but I can't get it to work. It keeps exiting and being restarted by upstart. Log file follows. It appears that it is complaining, among other things, of QEMU. I am not running QEMU and would like to disable everything except for LXC, but I am not sure it would fix my issue. I've set the log level to debug, even, but didn't see anything out of ordinary. Even resorted to strace, but I don't know enough about libvirtd to try and understand its behavior. Anyone got any clue about what's causing it to decide to exit? # libvirtd --version libvirtd (libvirt) 0.9.2 # uname -a Linux CI-Server-3-Backend-2 2.6.35.4-rscloud #2 SMP Sat Oct 29 21:16:49 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux # lxc-checkconfig --- Namespaces --- Namespaces: enabled Utsname namespace: enabled Ipc namespace: enabled Pid namespace: enabled User namespace: enabled Network namespace: enabled Multiple /dev/pts instances: enabled --- Control groups --- Cgroup: enabled Cgroup namespace: enabled Cgroup device: enabled Cgroup sched: enabled Cgroup cpu account: enabled Cgroup memory controller: enabled Cgroup cpuset: enabled --- Misc --- Veth pair device: enabled Macvlan: enabled Vlan: enabled File capabilities: enabled # cat /var/log/syslog Nov 5 18:42:50 CI-Server-3-Backend-2 libvirtd: 18:42:50.696: 25820: info : libvirt version: 0.9.2 Nov 5 18:42:50 CI-Server-3-Backend-2 libvirtd: 18:42:50.696: 25820: info : networkReloadIptablesRules:1410 : Reloading iptab les rules Nov 5 18:42:50 CI-Server-3-Backend-2 libvirtd: 18:42:50.776: 25820: error : virCommandWait:1393 : internal error Child proce ss (/sbin/iptables --table mangle --delete POSTROUTING --out-interface virbr0 --protocol udp --destination-port 68 --jump CHE CKSUM --checksum-fill) status unexpected: exit status 1 Nov 5 18:42:50 CI-Server-3-Backend-2 libvirtd: 18:42:50.817: 25820: error : virCommandWait:1393 : internal error Child proce ss (/sbin/iptables --table mangle --insert POSTROUTING --out-interface virbr0 --protocol udp --destination-port 68 --jump CHE CKSUM --checksum-fill) status unexpected: exit status 1 Nov 5 18:42:50 CI-Server-3-Backend-2 libvirtd: 18:42:50.818: 25820: warning : networkAddGeneralIptablesRules:1199 : Could not add rule to fixup DHCP response checksums on network 'default'. Nov 5 18:42:50 CI-Server-3-Backend-2 libvirtd: 18:42:50.818: 25820: warning : networkAddGeneralIptablesRules:1200 : May need to update iptables package & kernel to support CHECKSUM rule. Nov 5 18:42:50 CI-Server-3-Backend-2 libvirtd: 18:42:50.888: 25820: error : udevDeviceMonitorStartup:1616 : Failed to initialize libpciaccess: No such file or directory Nov 5 18:42:50 CI-Server-3-Backend-2 libvirtd: 18:42:50.889: 25820: error : virStateInitialize:830 : Initialization of udev state driver failed Nov 5 18:42:50 CI-Server-3-Backend-2 libvirtd: 18:42:50.930: 25820: info : qemudStartup:525 : Unable to create cgroup for driver: Invalid argument Nov 5 18:42:50 CI-Server-3-Backend-2 libvirtd: 18:42:50.931: 25820: info : qemudLoadDriverConfig:315 : Configured cgroup controller 'cpu' Nov 5 18:42:50 CI-Server-3-Backend-2 libvirtd: 18:42:50.931: 25820: info : qemudLoadDriverConfig:315 : Configured cgroup controller 'memory' Nov 5 18:42:50 CI-Server-3-Backend-2 libvirtd: 18:42:50.931: 25820: info : qemudLoadDriverConfig:315 : Configured cgroup controller 'devices' Nov 5 18:42:50 CI-Server-3-Backend-2 libvirtd: 18:42:50.931: 25820: info : qemudLoadDriverConfig:315 : Configured cgroup controller 'blkio' Nov 5 18:42:51 CI-Server-3-Backend-2 libvirtd: 18:42:51.100: 25820: info : virDomainLoadAllConfigs:9950 : Scanning for configs in /var/run/libvirt/qemu Nov 5 18:42:51 CI-Server-3-Backend-2 libvirtd: 18:42:51.100: 25820: info : virDomainLoadAllConfigs:9950 : Scanning for configs in /etc/libvirt/qemu Nov 5 18:42:51 CI-Server-3-Backend-2 kernel: [ 442.486147] lo: Disabled Privacy Extensions Nov 5 18:42:51 CI-Server-3-Backend-2 libvirtd: 18:42:51.319: 25820: info : virDomainLoadAllConfigs:9950 : Scanning for configs in /var/run/libvirt/lxc Nov 5 18:42:51 CI-Server-3-Backend-2 libvirtd: 18:42:51.319: 25820: info : virDomainLoadAllConfigs:9950 : Scanning for configs in /etc/libvirt/lxc Nov 5 18:42:51 CI-Server-3-Backend-2 libvirtd: 18:42:51.320: 25820: info : umlStartup:431 : Adding inotify watch on /var/run/libvirt/uml-guest Nov 5 18:42:51 CI-Server-3-Backend-2 libvirtd: 18:42:51.321: 25820: info : virDomainLoadAllConfigs:9950 : Scanning for configs in /etc/libvirt/uml Nov 5 18:42:51 CI-Server-3-Backend-2 libvirtd: 18:42:51.321: 25820: error : main:3390 : Driver state initialization failed Nov 5 18:42:51 CI-Server-3-Backend-2 libvirtd: 18:42:51.321: 25821: warning : qemudDispatchSignalEvent:424 : Shutting down on signal 3 -- Stephen *"Kids these days.* *Whatever happened to hard work?"* -- Joel Spolsky, The perils of javaschools

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[libvirt-users] no connection driver available for openvz:///system
by 张立洪 05 Nov '11

05 Nov '11

dears. I can not solved the problem: vzctl works. But how do I connect to Virtuozzo? Using the openvz >> > driver >> > it doesn't work out of the box: >> > virsh # connect openvz:///system >> > error: Failed to connect to the hypervisor >> > error: no connection driver available for openvz:///system Why can not I connect to the openvz??? please help me , thanks.

4 5

[libvirt-users] Event&Callback in QEMU
by huachao yao 04 Nov '11

04 Nov '11

Hi buddy, I wanna to monitor a domain's life cycle event, so i register a event an a virConnectDomainEventCallback, the code segment is as below: ------------------------ int DomainEventCallback(virConnectPtr conn, virDomainPtr dom, int event, int detail, void * opaque){ /*My code */ ....... } int main(){ /* .....*/ virDomainPtr dom = domain.getDomains("xp"); virFreeCallback freecb = NULL; void *opaque =NULL; virConnectDomainEventCallback cb =DomainEventCallback; virConnectDomainEventRegisterAny(conn, dom, VIR_DOMAIN_EVENT_ID_LIFECYCLE, VIR_DOMAIN_EVENT_CALLBACK(cb),opaque,freecb); /* .....*/ } but such a error happened: libvir: Remote error : this function is not supported by the connection driver: no event support and the libvirt version is 0.9; the driver is QEMU-KVM ,version is 0.14.0. I want to know why this Error will happen? Is the QEMU not support the LIFECYCLE Event ? If it is , how can i monitor the domain's life cycle event( such as started,defined and stopped..) Pls help~~

2 1

[libvirt-users] Cannot start VM after restart libvirt daemon
by Jean-Luc Derrien 03 Nov '11

03 Nov '11

Hello all, I'm using libvirt 0.8.3 on Debian Lenny (package provided in lenny-backports). After restarting libvirtd, I cannot start VM anymore. The daemon is restarted, but each time I try to start a domain, I get this message : virsh # start vm2 error: Failed to start domain vm2 error: internal error Process exited while reading console log output: When daemon is started with -v argument : 18:20:26.142: warning : qemudParsePCIDeviceStrs:1422 : Unexpected exit status '1', qemu probably failed 18:20:26.149: error : virExecDaemonize:782 : internal error Intermediate daemon process exited with status 0. 18:20:26.230: error : qemudReadLogOutput:2118 : internal error Process exited while reading console log output: In /var/log/syslog : Nov 3 18:20:26 ksm03 kernel: device vnet0 entered promiscuous mode Nov 3 18:20:26 ksm03 kernel: br0: port 2(vnet0) entering learning state Nov 3 18:20:26 ksm03 kernel: br0: port 2(vnet0) entering learning state Nov 3 18:20:26 ksm03 kernel: libvirtd[13599]: segfault at 41882000 ip 000000000043ac8b sp 000000004187e3b0 error 4 in libvirtd[400000+db000] Nov 3 18:20:26 ksm03 kernel: br0: port 2(vnet0) entering learning state Nov 3 18:20:26 ksm03 kernel: device vnet0 left promiscuous mode Nov 3 18:20:26 ksm03 kernel: br0: port 2(vnet0) entering disabled state When I reboot the server it works. Help welcome. Thanks in advance. Regards, Jean-Luc

1 0