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[libvirt-users] hangs in libvirt function virLogMessage
by Parakkal, Navin S 28 May '13

28 May '13

Hi, We are hitting a deadlock on libvirt on 0.9.4 version. Can someone help us ? 1) Is there any way to specify timeout for all the calls made by libvirt especially virConnectOpenReadOnly 2) Does virCommandRunAsync always fork a new process ? gdb) bt #0 0x00007fc17b53ce6e in __lll_lock_wait_private () from /lib64/libc.so.6 #1 0x00007fc17b4e3f2d in _L_lock_2164 () from /lib64/libc.so.6 #2 0x00007fc17b4e3ce7 in __tz_convert () from /lib64/libc.so.6 #3 0x00007fc16e4bfdab in virLogMessage () from /usr/lib64/libvirt.so.0 #4 0x00007fc16e4b092e in ?? () from /usr/lib64/libvirt.so.0 #5 0x00007fc16e4b2836 in ?? () from /usr/lib64/libvirt.so.0 #6 0x00007fc16e4b318c in virCommandRunAsync () from /usr/lib64/libvirt.so.0 #7 0x00007fc16e570705 in ?? () from /usr/lib64/libvirt.so.0 #8 0x00007fc16e56a1f8 in ?? () from /usr/lib64/libvirt.so.0 #9 0x00007fc16e55c3d2 in ?? () from /usr/lib64/libvirt.so.0 #10 0x00007fc16e55db10 in ?? () from /usr/lib64/libvirt.so.0 #11 0x00007fc16e52ed95 in ?? () from /usr/lib64/libvirt.so.0 #12 0x00007fc16e52f957 in virConnectOpenReadOnly () from /usr/lib64/libvirt.so.0 #13 0x00007fc153cdb858 in OalibvirtCollectionManager::libvirtColJobImpl::Run (this=0x7fc13182a610) at ../libvirtColJobImpl.cpp:348 #14 0x00007fc153cd6e83 in OalibvirtCollectionManager::libvirtColJob::Run (this=<value optimized out>) at ../libvirtColJob.cpp:36 #15 0x00007fc17cc8ee36 in OAScheduler::ScheduleWorker::Run (this=0x7fc15dd9ede0, myThread=<value optimized out>) at /svn-share2/BLR.ovpa.11.12.i/linx64/hpsw-oa/AgentFramework/cpp/src/Scheduler/ScheduleWorker.cpp:32 #16 0x00007fc17c04a418 in OvXplThread::ThreadInfo_t::Run() () from /opt/OV/lib64/libOvXpl.so #17 0x00007fc17c04a6a5 in runThread () from /opt/OV/lib64/libOvXpl.so #18 0x00007fc17b22f7f1 in start_thread () from /lib64/libpthread.so.0 [root@martellvm6 ~]# virsh version Compiled against library: libvir 0.9.4 Using library: libvir 0.9.4 Using API: QEMU 0.9.4 error: failed to get the hypervisor version error: internal error Cannot find suitable emulator for x86_64 [root@martellvm6 ~]# cat /etc/issue CentOS release 6.2 (Final) Kernel \r on an \m

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[libvirt-users] Help: Using Pre-created tap interfaces with Libvirt+Xen
by Raghu Nallamothu 25 May '13

25 May '13

Hi All., I am not sure if this is possible in xen via Libvirt, but what I am trying to do is, I want libvirt to launch a VM and attach a pre-created tap interface to that VM ( I do not want XEN to create one, as I am running a lot of custom scripts on my tap interface). I also dont want xen to attach this tap interface to a bridge. For example, lets say I have created a tap interface with name "tap123456" when libvirt launches my VM in xen, I want the VM to read its networking info from this tap interface. But I wasn't so successful in doing this when ever I am trying to do this, I am seeing the following error message "VmError: Device 0 (vif) could not be connected. Hotplug scripts not working." and "error: POST operation failed: xend_post: error from xen daemon: (xend.err 'Device 0 (vif) could not be connected. Cannot rename interface vif4.0. An interface with name tap12345 already exists.')". But I dont want xen to create another interface and rename it, rather want xen to use the existing one === output of lsmod === bash-4.1# lsmod | grep xen xen_acpi_processor 4465 0 xen_netback 25455 0 [permanent] xen_gntdev 9504 2 xen_evtchn 4899 3 xenfs 2943 1 xen_privcmd 4972 19 xenfs ==== end of output ==== My Configuration : Centos 6.2 with Xen 4.2.5 along with Libvirt Libvirt Configuration file, <domain type='xen'> <name>raghu_12345</name> <uuid>12113325-d948-4a1b-b673-888a16b90726</uuid> <memory>1048576</memory> <vcpu>1</vcpu> <os> <type>hvm</type> <loader>/usr/lib/xen/boot/hvmloader</loader> <boot dev='hd'/> </os> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <features> <pae/> <acpi/> <apic/> </features> <devices> <emulator>/usr/lib/xen/bin/qemu-dm</emulator> <interface type="ethernet"> <mac address='00:25:90:3f:25:91'/>  <target dev='tap123456'/> </interface> <disk type='file' device='disk'> <source file='~/tmp/lucid.img'/> <target dev='hda'/> </disk> <console type='pty'> <target port='0'/> </console> <graphics port='-1' type='vnc' autoport='yes' listen='0.0.0.0'/> </devices> </domain> I have a pre-created tap interface with name 'tap123456' with all the networking setup with dhcp and dns running. Thanks for your time and help. Regards Raghu

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[libvirt-users] hardware error 0x80000021 on Ubuntu 12.10, need advice
by Sebastien Douche 24 May '13

24 May '13

Hi, On a DELL r610 (Intel Xeon L5520) and a Windows guest I have an hardware error. The bug is well known[1][2] and seems fixed with the package 3.5.0-16-generic. But I use 3.5.0-30-generic. Do I need to upgrade to 13.10? Or just the kernel ? Or modify the options of the kvm module? Thanks. [1] https://bugzilla.redhat.com/show_bug.cgi?id=854983 [2] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1045027 logs: 2013-05-23 15:54:02.306+0000: starting up LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/sbin:/sbin:/bin QEMU_AUDIO_DRV=none /usr/bin/kvm-spice -name windows1 -S -M pc-1.2 -enable-kvm -m 3500 -smp 2,sockets=2,cores=1,threads=1 -uuid d170225e-7367-4ece-4338-6b1811c10c0c -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/windows1.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime -no-shutdown -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive file=/srv/kvm/windows1.img,if=none,id=drive-ide0-0-0,format=qcow2 -device ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 -drive file=/srv/iso/windows7ultimate.iso,if=none,id=drive-ide0-1-0,readonly=on,format=raw -device ide-cd,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -netdev tap,fd=18,id=hostnet0,vhost=on,vhostfd=19 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:49:32:cc,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -device usb-tablet,id=input0 -vnc 127.0.0.1:0 -vga std -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 char device redirected to /dev/pts/1 KVM: entry failed, hardware error 0x80000021 If you're running a guest on an Intel machine without unrestricted mode support, the failure can be most likely due to the guest entering an invalid state for Intel VT. For example, the guest maybe running in big real mode which is not supported on less recent Intel processors. EAX=00000010 EBX=00000080 ECX=00000000 EDX=00000080 ESI=0025da4a EDI=0007da4a EBP=00001f20 ESP=00000200 EIP=0000009b EFL=00000002 [-------] CPL=3 II=0 A20=1 SMM=0 HLT=0 ES =0020 00000200 0000ffff 00009300 CS =b000 002b0000 0000ffff 0000f300 SS =0020 00000200 0000ffff 0000f300 DS =0020 00000200 0000ffff 00009300 FS =0020 00000200 0000ffff 00009300 GS =0020 00000200 0000ffff 00009300 LDT=0000 00000000 0000ffff 00008200 TR =0000 00000000 0000ffff 00008b00 GDT= 002b0000 00000027 IDT= 00000000 000003ff CR0=00000010 CR2=00000000 CR3=00000000 CR4=00000000 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000000 Code=02 00 00 ea 91 00 00 00 18 00 0f 20 c0 66 83 e0 fe 0f 22 c0 <66> 31 c0 8e d8 8e c0 8e d0 66 bc 00 04 00 00 8e e0 8e e8 ea 00 00 00 20 00 00 00 20 4a da -- Sebastien Douche <sdouche(a)gmail.com> Twitter: @sdouche / G+: +sdouche

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[libvirt-users] cpu passthrough
by Thomas Manninger 23 May '13

23 May '13

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[libvirt-users] snapshot create error, unable to find cgroup for vm
by Gao Yongwei 22 May '13

22 May '13

Hello: Yesterday I yum update libvirt from 0.9.10 to 0.10.2 ,after update I got some error in libvirtd.log like this: 2013-05-10 07:39:09.440+0000: 18824: warning : virCgroupMoveTask:885 : no vm cgroup in controller 3 2013-05-10 07:39:09.440+0000: 18824: warning : virCgroupMoveTask:885 : no vm cgroup in controller 4 2013-05-10 07:39:09.440+0000: 18824: warning : virCgroupMoveTask:885 : no vm cgroup in controller 6 so,I restarted cgconfig and libvirtd daemon : service cgconfig restart ; service libvirtd restart after that ,I cannot create snapshot for vm anymore.and error log message below: 2013-05-16 01:13:23.638+0000: 28848: error : qemuDomainSnapshotCreateDiskActive:11299 : internal error Unable to find cgroup for vm1 my version info : # rpm -q libvirt libvirt-0.10.2-18.el6_4.4.x86_64 # rpm -q qemu-kvm qemu-kvm-0.12.1.2-2.295.el6_3.1.x86_64 in /cgroup dir I cannot find anything about vm1.how can I recover the missing cgroup for vm ? thanks !

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[libvirt-users] USB passthrough not working
by Dale Amon 21 May '13

21 May '13

I just updated an Ubuntu Oneiric to Raring and the VM that works fine on one fails to start a VM with this passthrough: <hostdev mode='subsystem' type='usb' managed='no'> <source> <vendor id='0x055f'/> <product id='0x040b'/> <address bus='3' device='8'/> </source> </hostdev> It just dies at boot time.

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[libvirt-users] Two VF cards
by Dominik Mostowiec 21 May '13

21 May '13

Hi, I try to add 2 VF functions to VM via network. Livirt networks: vnet0: <network> <name>vnet0</name> <forward mode='hostdev' managed='yes'> <pf dev='eth0'/> </forward> </network> vnet1: <network> <name>vnet0</name> <forward mode='hostdev' managed='yes'> <pf dev='eth1'/> </forward> </network> In VM configuration: <interface type="network"> <source network="vnet0"/> <mac address="52:54:0a:b1:48:07"/> </interface> <interface type="network"> <source network="vnet1"/> <mac address="52:54:0a:b1:48:07"/> </interface> VM can't start because: kvm: -device pci-assign,configfd=24,host=01:10.1,id=hostdev0,bus=pci.0,addr=0x4: Duplicate ID 'hostdev0' for device libvirt version 1.0.5. What i am doing wrong? -- Regards Dominik

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[libvirt-users] How to use xl (in place of xm) with libvirt 1.0.2 and Xen 4.2.1 in Ubuntu 13.04?
by Gizmo Chicken 21 May '13

21 May '13

QUESTION: What, if anything, can I do so that I can use xl (in place of xm) with libvirt 1.0.2 and Xen 4.2.1 in Ubuntu 13.04? BACKGROUND: I am testing a fully updated (as of March 27) installation of Ubuntu 13.04 that includes the following packages: libvirt - version 1.0.2-0ubuntu9 xen-hypervisor-4.2-amd64 - version 4.2.1-0ubuntu1 Upon setting TOOLSTACK=xm in /etc/default/xen (as well as making a few needed tweaks to /etc/xen/xend-config.sxp), libvirt and virt-manager worked great. Yippee! I guess that I should be happy that the xm toolstack still works with Xen 4.2.1 and quit while I'm ahead, but... According to libvirt's documentation: "libxl: Starting with Xen 4.2, the legacy XenD/xm toolstack is deprecated in favor of libxl, also commonly called libxenlight. libvirt supports this new Xen toolstack via the libxl driver. If XenD is enabled, the legacy xen driver consisting of the above mentioned channels will be used. If XenD is disabled, the libxl driver will be used." See http://libvirt.org/drvxen.html. In view of the above, I attempted to use xl in place xm by setting TOOLSTACK=xl in /etc/default/xen. And after doing so (both with and without, the above mentioned tweaks to /etc/xen/xend-config.sxp), I recieved the following error when attempting to start virt-manager: Unable to connect to libvirt. unable to connect to 'localhost:8000': Connection refused Verify that: - A Xen host kernel was booted - The Xen service has been started Libvirt URI is: xen:/// Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/connection.py", line 1027, in _open_thread self.vmm = self._try_open() File "/usr/share/virt-manager/virtManager/connection.py", line 1009, in _try_open flags) File "/usr/lib/python2.7/dist-packages/libvirt.py", line 102, in openAuth if ret is None:raise libvirtError('virConnectOpenAuth() failed') libvirtError: unable to connect to 'localhost:8000': Connection refused

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[libvirt-users] libvirtd using 11GB
by Alex Leonhardt 20 May '13

20 May '13

Hi All, Am new to this list, and have asked in #ovirt / ovirt-users list and they pointed me to here ... I've seen libvirtd using ~11 GB of resident memory after the host has been running for about 60+ days with about 40 VMs running on it. The versions I'm currently running are : libvirt.x86_64 0.9.10-21.el6_3.7 libvirt-client.x86_64 0.9.10-21.el6_3.7 libvirt-lock-sanlock.x86_64 libvirt-python.x86_64 0.9.10-21.el6_3.7 I know I can just restart libvirtd and "all should be fine" (and hopefully I'll regain the 11GB of memory) - however, is there an updated version that maybe fixes a memory leak ?? Thanks in advance, Alex -- | RHCE | Sen Sys Engineer / Platform Architect | www.vcore.co | www.vsearchcloud.com |

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[libvirt-users] How to see the console output of an EXE session?
by Jon Taylor 20 May '13

20 May '13

Hi, I am having trouble with a libvirt lxc EXE container which is starting another EXE container itself, and I need to see the console output of (hopefully) both containers. How do I do this? I have searched the net a lot, but the answers I found were either out of date, wrong or didn't work. Has anyone else here done this? Jon

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