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[libvirt] Re: [et-mgmt-tools] attach hot usb device
by Cole Robinson 23 Feb '09

23 Feb '09

cc-ing libvir-list (future libvirt questions should be directed there) jmandawg wrote: > Hi, > > > > Quick question, since I can’t get to the qemu monitor anymore, how do I > hot add a usb device (smartphone)? > > Is it possible to do through virsh? > Sure: - Use 'lsusb' to determine the bus and device. Example listing looks like: Bus 001 Device 006: ID 0781:5151 SanDisk Corp. Cruzer Micro 256/512MB Flash Drive - Put hostdev xml in a file: cat << __EOF__ > usb.xml <hostdev mode='subsystem' type='usb'> <source> <address bus='1' device='6'/> </source> </hostdev> __EOF__ - Run 'virsh attach-device {VMNAME} usb.xml' on a running VM. Hope that helps, Cole

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[libvirt] Networking with libvirt
by Andreas Rittershofer 22 Feb '09

22 Feb '09

I want to setup networking under KVM and with libvirt. I read a lot the last two days, but it is not working as desired. I don't want bridging, I want it with a tap-device created via vde_switch. I cannot figure out what to put in /etc/libvirt/qemu/machine.xml and /etc/ libvirt/qemu/networks/network.xml - there is no really good documentation. /var/log/libvirt/qemu/maschine.log shows a lot of parameters when I start the VM with virsh start machine, but I cannot figure out where to set these values or where to set the defaults. mfg ar -- Hier könnte keine Signatur stehen.

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[libvirt] update documentation
by jesse lauren farinacci 22 Feb '09

22 Feb '09

I hit a small snag when following the documentation, specifically the doc says to use <clock sync='localtime'/> when it should say <clock offset='localtime'/>.

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[libvirt] [PATCH] Fix bugzilla link in virsh man page
by Mark McLoughlin 22 Feb '09

22 Feb '09

Note, I haven't generated a new virsh.1 because Pod::Man 2.16 gives a bunch of warnings even with the existing version. Signed-off-by: Mark McLoughlin <markmc(a)redhat.com> --- docs/virsh.pod | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/docs/virsh.pod b/docs/virsh.pod index 8b42ea0..58bba6b 100644 --- a/docs/virsh.pod +++ b/docs/virsh.pod @@ -540,9 +540,9 @@ L<virt-install(1)>, L<xm(1)>, L<virt-top(1)>, L<virt-mem(1)>, L<virt-df(1)>, L<h =head1 BUGS -Bugs can be view on the RedHat bugzilla page under the libvirt +Bugs can be filed in Red Hat bugzilla under the Virtualization Tools/libvirt L<https://bugzilla.redhat.com/> -L<https://bugzilla.redhat.com/bugzilla/buglist.cgi?product=Fedora+Core&compon…> +L<https://bugzilla.redhat.com/buglist.cgi?product=Virtualization+Tools&compon…> =end -- 1.6.0.6

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[libvirt] restore as init script
by Matthias Pfafferodt 21 Feb '09

21 Feb '09

Hello, first i'm using kvm-84 and libvirt 0.6.0 on opensuse 11.1. I try to use the attached script to save some domains on shutdown and restore them on host boot. The script also tries to cleanly shutdown all other domains. The save and shutdown part is working as expected but on system boot the restore of the saved domains fails. If I manually run 'rclibvirtdomains start' after a boot it needs 1 to 3 tries to restore the domain. After that I can run a stop/start cycle of libvirtdomains without problems. How can I debug this problem? After the system boot libvirt seems to have problems to connect to qemu/kvm. The log messages are for a failed start: --- start log --- LC_ALL=C PATH=/bin:/sbin:/usr/bin:/usr/sbin HOME=/ /usr/bin/qemu-kvm -S -M pc -m 1024 -smp 1 -name kvm-virt03 -uuid 864c0b59-705e-5d78-dc3e-1a9de7dd305f -monitor pty -pidfile /var/run/libvirt/qemu//kvm-virt03.pid -boot c -drive file=/dev/virtual/kvm_virt03,if=ide,index=0,boot=on -net nic,macaddr=00:16:3e:00:01:05,vlan=0,model=e1000 -net tap,fd=15,script=,vlan=0,ifname=vnet0 -serial none -parallel none -usb -vnc 192.168.110.78:0 -k de -soundhw es1370 -incoming exec:cat char device redirected to /dev/pts/6 qemu_popen: returning result of qemu_fopen_ops cat: write error: Broken pipe --- end log --- and for a successful start: --- start log --- LC_ALL=C PATH=/bin:/sbin:/usr/bin:/usr/sbin HOME=/ /usr/bin/qemu-kvm -S -M pc -m 1024 -smp 1 -name kvm-virt03 -uuid 864c0b59-705e-5d78-dc3e-1a9de7dd305f -monitor pty -pidfile /var/run/libvirt/qemu//kvm-virt03.pid -boot c -drive file=/dev/virtual/kvm_virt03,if=ide,index=0,boot=on -net nic,macaddr=00:16:3e:00:01:05,vlan=0,model=e1000 -net tap,fd=15,script=,vlan=0,ifname=vnet0 -serial none -parallel none -usb -vnc 192.168.110.78:0 -k de -soundhw es1370 -incoming exec:cat char device redirected to /dev/pts/6 qemu_popen: returning result of qemu_fopen_ops info cpus * CPU #0: pc=0xffffffff80221f1d thread_id=7398 cont --- end log --- Kind regards Matthias Pfafferodt -- Matthias Pfafferodt - http://www.mapfa.de Matthias.Pfafferodt <at> mapfa.de ## Path: System/Virtualization ## Description: libvirtd stop configuration ## Type: yesno ## Default: yes # # On 'libvirtd stop' all running domains are killed. If # LIBVIRTDOMAINS_SHUTDOWN is set to 'yes' all running vm's are given time # for a gracefully shutdown. # LIBVIRTDOMAINS_SHUTDOWN="yes" ## Path: System/Virtualization ## Description: libvirtd timeout ## Type: integer ## Default: 300 # # On 'libvirtd stop' the vm's are ask to shutdown. This optine gives the # maximum number of seconds the script will wait until libvirt is stopped. # LIBVIRTDOMAINS_SHUTDOWN_MAXWAIT=300 ## Path: System/Virtualization ## Description: should domains be saved ## Type: yesno ## Default: yes # # If set to yes domains are saved on shutdown and restored on boot. # LIBVIRTDOMAINS_SAVE="yes" ## Path: System/Virtualization ## Description: domains which should be save and restored ## Type: string ## Default: # # The listed vms are saved on shutdown and restored at boot time # LIBVIRTDOMAINS_SAVE_VM="kvm-virt03" ## Path: System/Virtualization ## Description: save path for domains ## Type: string ## Default: /var/lib/libvirtdomains/save # # Path there the domains should be saved # LIBVIRTDOMAINS_SAVE_DIR="/var/lib/libvirtdomains/save"

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[libvirt] bridge-to-lan interfaces with network type
by Zhengang Li 21 Feb '09

21 Feb '09

Hi All, The documentation on the libvirt website explains the way to define a bridge to LAN network interfaces with a 'bridge' type. E.g.: <interface type='bridge'> <source bridge='br0'/> <mac address='52:54:00:00:00:11'/> </interface> I'm working in a limited environment. Only 'network' type interfaces can be defined for a guest. Is it possible to define a bridge-to-lan interfaces with a 'network' type? The question actually goes to: How to write a network definition xml for libvirt to use as bridge to LAN type NIC in guest? I tried with 'nat' and 'route' forward in network xml, neither works for me. Regards, Zhengang

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[libvirt] can't install fedora guest
by Farkas Levente 19 Feb '09

19 Feb '09

hi, while i try to install fedora-10 guest on centos-5 host i've got the error bellow virt-manager. our setup: virt-manager-0.6.1-1 libvirt-0.6.0-1 kvm-83-1 ----------------------------------------------- Unable to complete install 'libvirt.libvirtError internal error unable to start guest: Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/create.py", line 717, in do_install dom = guest.start_install(False, meter = meter) File "/usr/lib/python2.4/site-packages/virtinst/Guest.py", line 926, in start_install return self._do_install(consolecb, meter, removeOld, wait) File "/usr/lib/python2.4/site-packages/virtinst/Guest.py", line 966, in _do_install self.domain = self.conn.createLinux(install_xml, 0) File "/usr/lib64/python2.4/site-packages/libvirt.py", line 973, in createLinux if ret is None:raise libvirtError('virDomainCreateLinux() failed', conn=self) libvirtError: internal error unable to start guest: ----------------------------------------------- while this is in virt-manager's log: ----------------------------------------------- [Fri, 06 Feb 2009 10:27:15 virt-manager 31523] DEBUG (Storage:908) Storage volume 'fedora-i386.img' install complete. [Fri, 06 Feb 2009 10:27:15 virt-manager 31523] DEBUG (Guest:964) Creating guest from: <domain type='kvm'> <name>fedora-i386</name> <currentMemory>524288</currentMemory> <memory>524288</memory> <uuid>75330b36-f8e3-8459-2d71-fb47245d7203</uuid> <os> <type arch='x86_64'>hvm</type> <boot dev='cdrom'/> </os> <features> <acpi/><apic/> </features> <clock offset="utc"/> <on_poweroff>destroy</on_poweroff> <on_reboot>destroy</on_reboot> <on_crash>destroy</on_crash> <vcpu>1</vcpu> <devices> <emulator>/usr/bin/qemu-kvm</emulator> <console type='pty'/> <disk type='file' device='disk'> <source file='/var/lib/libvirt/images/fedora-i386.img'/> <target dev='vda' bus='virtio'/> </disk> <disk type='block' device='cdrom'> <source dev='/dev/hda'/> <target dev='hdc' bus='ide'/> <readonly/> </disk> <interface type='bridge'> <source bridge='eth0'/> <mac address='54:52:00:5d:99:c0'/> <model type='virtio'/> </interface> <input type='mouse' bus='ps2'/> <graphics type='vnc' port='-1' keymap='en-us'/> <sound model='es1370'/> </devices> </domain> [Fri, 06 Feb 2009 10:27:16 virt-manager 31523] ERROR (create:735) Unable to complete install 'libvirt.libvirtError internal error unable to start guest: Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/create.py", line 717, in do_install dom = guest.start_install(False, meter = meter) File "/usr/lib/python2.4/site-packages/virtinst/Guest.py", line 926, in start_install return self._do_install(consolecb, meter, removeOld, wait) File "/usr/lib/python2.4/site-packages/virtinst/Guest.py", line 966, in _do_install self.domain = self.conn.createLinux(install_xml, 0) File "/usr/lib64/python2.4/site-packages/libvirt.py", line 973, in createLinux if ret is None:raise libvirtError('virDomainCreateLinux() failed', conn=self) libvirtError: internal error unable to start guest: ' [Fri, 06 Feb 2009 10:27:16 virt-manager 31523] DEBUG (error:76) Uncaught Error: Unable to complete install: 'internal error unable to start guest: ' : Unable to complete install 'libvirt.libvirtError interna l error unable to start guest: Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/create.py", line 717, in do_install dom = guest.start_install(False, meter = meter) File "/usr/lib/python2.4/site-packages/virtinst/Guest.py", line 926, in start_install return self._do_install(consolecb, meter, removeOld, wait) File "/usr/lib/python2.4/site-packages/virtinst/Guest.py", line 966, in _do_install self.domain = self.conn.createLinux(install_xml, 0) File "/usr/lib64/python2.4/site-packages/libvirt.py", line 973, in createLinux if ret is None:raise libvirtError('virDomainCreateLinux() failed', conn=self) libvirtError: internal error unable to start guest: ' ----------------------------------------------- -- Levente "Si vis pacem para bellum!"

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[libvirt] Java binding - JVM crashes .. sometimes
by Daniel Schwager 18 Feb '09

18 Feb '09

Hi, since I updated to the new libvirt-version (CVS snapshot of today), my JVM running my multi-thread application "sometimes" will crashes if I open or close libvirt-connection (on KVM hypervisor). I didn't find out the exact szenario - simple junit tests are running well. But inside my main application (multi tread, multiple fast access to libvirt java interface) will crash the JVM. The crash-report looks like ALWAYS like the following 2 examples. Is there a way to - debug this - make the JNI code more robust ? - make the open/close of libvirt more robust ? I think the JVM crashes, because the libvirt crashes. Is there a way to look inside libvirt to see a "crash" of the native libvirt-prog ? My application runs very well with the old version libvirt-0.4.5. I think, problem starts with >= 0.5. One more: Something, it happens, that a virsh -command on the commandline prints out an error message similar to "Can't connect to hypervisor" (I can't reproduce it at the moment). Multiple repeating the command works well. This happens not often - but sometimes.. Now, the Stacktrace of the crashed JVM ** first ... Instructions: (pc=0x0000000001206351) 0x0000000001206341: c0 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f c9 c3 0x0000000001206351: 49 8b 3e e8 47 f7 fc ff 84 c0 74 18 48 8b 15 bc Stack: [0x0000000002430000,0x0000000002531000], sp=0x000000000252f0d0, free space=1020k Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code) V [libjvm.so+0x34a351] V [libjvm.so+0x325201] Java frames: (J=compiled Java code, j=interpreted, Vv=VM code) j org.libvirt.Connect._close(J)I+0 j org.libvirt.Connect.close()V+5 j org.libvirt.Connect.finalize()V+1 v ~StubRoutines::call_stub j java.lang.ref.Finalizer.invokeFinalizeMethod(Ljava/lang/Object;)V+0 j java.lang.ref.Finalizer.runFinalizer()V+45 j java.lang.ref.Finalizer.access$100(Ljava/lang/ref/Finalizer;)V+1 j java.lang.ref.Finalizer$FinalizerThread.run()V+11 v ~StubRoutines::call_stub ... ** Second ... Stack: [0x000000002a061000,0x000000002a162000], sp=0x000000002a15e050, free space=1012k Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code) V [libjvm.so+0x34a351] V [libjvm.so+0x325201] Java frames: (J=compiled Java code, j=interpreted, Vv=VM code) j org.libvirt.Connect._open(Ljava/lang/String;)J+0 j org.libvirt.Connect.<init>(Ljava/lang/String;Z)V+23 j de.dtnet.virtcontroller.server.command.VDomain.open(Ljava/lang/String;)Lorg/libvirt/Connect;+74 ... Viele Gruesse Daniel Schwager ------------------------------------------------------------------- DT Netsolution GmbH - Taläckerstr. 30 - D-70437 Stuttgart Geschäftsführer: Daniel Schwager, Stefan Hörz - HRB Stuttgart 19870 Tel: +49-711-849910-32, Fax: -932 - Mailto:daniel.schwager@dtnet.de

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[libvirt] A problem about libvir
by 刘刚 18 Feb '09

18 Feb '09

Hello, I have a problem for help. I use the libvir library 0.4.2 on Xen 3.2.0, the host OS is Suse 10.2 . I start a windows domain (windows xp). I use the function virDomainAttachDevice() to attach an iSCSI device to the windows domain,but it failed. I can use this function to attach an iSCSI device to a linux domain. How can I attach an iSCSI device to a windows domain ? or libvir doesn't support attach device to windows domain ? thanks a lot! MOBILE: 13622388220 HUAWEI TECHNOLOGIES CO.,LTD. Address: Huawei Industrial Base Bantian Longgang Shenzhen 518129, P.R.China E-mail: liugang8440265(a)huawei.com www.huawei.com

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[libvirt] [PATCH] Remove invalid ATTRIBUTE_UNUSED
by Cole Robinson 18 Feb '09

18 Feb '09

Stumbled on an ATTRIBUTE_UNUSED that is actually used. Patch attached. Thanks, Cole

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