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Re: [libvirt-users] libvirt for Citrix XenServer
by Parakkal, Navin S 28 May '13

28 May '13

________________________________ From: Prasad [prasad(a)mukhedkar.com] Sent: Tuesday, May 28, 2013 7:33 PM To: Parakkal, Navin S Subject: Re: [libvirt-users] libvirt for Citrix XenServer On 05/27/2013 12:13 PM, Parakkal, Navin S wrote: Hi, Can someone send me the build steps how to build for Citrix XenServer ? I want to build a version of libvirt for Citrix XenServer. Regards, Navin _______________________________________________ libvirt-users mailing list libvirt-users(a)redhat.com<mailto:libvirt-users@redhat.com> https://www.redhat.com/mailman/listinfo/libvirt-users Navin, I don't think libvirt supports Citrix XenServer hypervisors. per the libvirt.org only following hypervisors are supported : * The KVM/QEMU<http://libvirt.org/drvqemu.html> Linux hypervisor * The Xen<http://libvirt.org/drvxen.html> hypervisor on Linux and Solaris hosts. * The LXC<http://libvirt.org/drvlxc.html> Linux container system * The OpenVZ<http://libvirt.org/drvopenvz.html> Linux container system * The User Mode Linux<http://libvirt.org/drvuml.html> paravirtualized kernel * The VirtualBox<http://libvirt.org/drvvbox.html> hypervisor * The VMware ESX and GSX<http://libvirt.org/drvesx.html> hypervisors * The VMware Workstation and Player<http://libvirt.org/drvvmware.html> hypervisors * The Microsoft Hyper-V<http://libvirt.org/drvhyperv.html> hypervisor * The IBM PowerVM<http://libvirt.org/drvphyp.html> hypervisor * The Parallels<http://libvirt.org/drvparallels.html> hypervisor > I think that is out of the box . I found these steps but was thinking if there is any wiki or link. https://www.redhat.com/archives/libvirt-users/2011-June/msg00042.html http://stackoverflow.com/questions/7130665/install-libvirt-with-xenserver-a…

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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 23 May '13

23 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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[libvirt-users] nova compute libvirt driver and libvirt compatibility
by arvind viswanathan 17 May '13

17 May '13

Hi, >From my reading about nova interface to libvirt, I came to know it uses a libvirt driver module to communicate with host libvirt. I was wondering if there are any compatibility matrix available between the nova libvirt driver and the libvirt installed in the host ? Thanks Arvind

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[libvirt-users] connect to esx: Could not find HostSystem with name '(null)'
by Dimitri Nilsen 16 May '13

16 May '13

Hi all, I am trying to connect to esx vi libvirt 0.10.2. virsh # connect esx://hostname?no_verify=1&auto_answer=1 error: Failed to connect to the hypervisor error: internal error Could not find HostSystem with name '(null)' could you give me a hint, what could be a reason for that problem in a debug log of libvirt I see: 14447: debug : virAuthGetConfigFilePath:77 : Checking for readability of '/root/.libvirt/auth.conf' 14447: debug : virAuthGetConfigFilePath:86 : Checking for readability of '/etc/libvirt/auth.conf' 14447: debug : virAuthGetConfigFilePath:95 : Using auth file '(null)' 14447: error : esxVI_LookupManagedObjectHelper:4854 : internal error Could not find HostSystem with name '(null)' 14447: debug : do_open:1180 : driver 1 ESX returned ERROR Regards Dimitri

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[libvirt-users] Getting libvirt Error when setting IO tune read_bytes_sec value using libvirt API virDomainSetBlockIotune
by vikrant verma 16 May '13

16 May '13

Hi All, I am setting the value for "read_bytes_sec" using the following API code virDomainSetBlockIoTune(dom, "/mnt/tmpsdb/FileVM1", parainfoPtr, nparams, 2); I am succesfully able to set this value and i can read it back using the API virDomainGetBlockIoTune(dom,"/mnt/tmpsdb/FileVM1",parainfoPtr,&nparams,2); But after setting this value when i shutdown my VM and start it again I am getting following error - ibvirtError: internal error Process exited while reading console log output: qemu-system-x86_64: -drive file=/mnt/tmpsdb/FileVM1,if=none,id=drive-ide0-1-1,format=raw,bps_rd=1048576: Invalid parameter 'bps_rd' Note - when i see dumpxml of the VM following lines are got added after setting the iotunes for read_bytes_sec <iotune> <read_bytes_sec>1048576</read_bytes_sec> </iotune> Please help me. Also i wanted to know whether we can set block IO tune for a VM using the above API. Is it same as the IO throttling provided by cgroup?

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[libvirt-users] libvir: QEMU Driver error : internal error Cannot find suitable emulator for armv7l
by Clark Laughlin 15 May '13

15 May '13

Hello, I am trying to run OpenStack (via devstack) on an Arndale board using Linaro's 13.04 release. I am getting a libvirt error that I was hoping someone could provide some more detail about: libvir: QEMU Driver error : internal error Cannot find suitable emulator for armv7l If this is coming from libvirt, what is it looking for for a suitable emulator? Or, is this something I need to search starting with QEMU? Thank you in advance, Clark L

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[libvirt-users] Pre-requisites to use Java bindings with QEMU
by Lior Vernia 15 May '13

15 May '13

Hello everyone, I've been reading through the articles on the website trying to understand what's needed to use the libvirt Java bindings with a QEMU hypervisor, but still have some uncertainties/questions: 1. It is my understanding that libvirtd has to be running on the machine hosting the hypervisor. Correct? 2. For libvirtd to communicate with QEMU, QEMU has to be installed on the machine hosting the hypervisor. Correct? I guess what I'm really asking is whether the libvirt QEMU "driver" includes the QEMU source code, or rather communicates with pre-installed executables. 3. Assuming the answer to the two former questions is "yes", is there a way to bypass libvirtd if the machine hosting the hypervisor is the same as the one running the Java code? I'm asking because running libvirtd would require privileged permissions, whereas QEMU itself can run with normal user permissions. Is that a price I have to pay for the uniform interface that libvirt presents? Yours, Lior.

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[libvirt-users] Designing libvirt client
by arvind viswanathan 15 May '13

15 May '13

Hi, I have a VMM application using a homegrown client for communicating with hypervisor. I am planning to migrate to libvirt because of the blocking nature of the calls. After going over the architecture, I would like to have a few doubts clarified 1) Should my application be necessarily multi-threaded in order to make use of the non-blocking calls in libvirt. [Are overlapping methods mainly used by multithreaded clients]. 2) I was wondering if there was any way to provide a callback along with the methods to achieve non-blocking.[My application has event library so it can receive events] 3) Is the libvirt RPC client multi-threaded. [i.e., does it internally use multiple threads to dispatch requests to server and return response to the application] I can provide more information, if its not helpful. Thanks Arvind

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[libvirt-users] convert only partition instead of whole disk (virt-p2v)
by hamelj＠web.de 15 May '13

15 May '13

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[libvirt-users] Error while compiling libvirt-1.0.5
by Javi Legido 14 May '13

14 May '13

Hi all. I'm trying to compile libvirt-1.0.5 on a Debian 6.0, but I get an error after "./configure" and then "make". Info: ... CCLD libvirt_parthelper libvirt_parthelper-parthelper.o: In function `main': /usr/local/src/libvirt-1.0.5/src/storage/parthelper.c:102: undefined reference to `ped_device_get' /usr/local/src/libvirt-1.0.5/src/storage/parthelper.c:116: undefined reference to `ped_disk_new' /usr/local/src/libvirt-1.0.5/src/storage/parthelper.c:122: undefined reference to `ped_disk_next_partition' /usr/local/src/libvirt-1.0.5/src/storage/parthelper.c:174: undefined reference to `ped_disk_next_partition' collect2: ld returned 1 exit status make[3]: *** [libvirt_parthelper] Error 1 make[3]: Leaving directory `/usr/local/src/libvirt-1.0.5/src' make[2]: *** [all] Error 2 make[2]: Leaving directory `/usr/local/src/libvirt-1.0.5/src' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/usr/local/src/libvirt-1.0.5' make: *** [all] Error 2 ---- $ sudo dpkg -l | grep parted ii libparted0-dev 2.3-5 The GNU Parted disk partitioning library development files ii libparted0debian1 2.3-5 The GNU Parted disk partitioning shared library ii libparted0debian1-dbg 2.3-5 The GNU Parted disk partitioning library debug development files ii parted 2.3-5 The GNU Parted disk partition resizing program Can somebody please help? Thanks

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[libvirt-users] Unable to start LXC on Gentoo w/ libvirt 1.0.4 or 1.0.5. 1.0.3 works
by Dennis Jenkins 14 May '13

14 May '13

Hello. I use libvirtd on my Gentoo development system to manage both QEMU and LXC. When 1.0.3 came out, I updated to it from 1.0.3-r2, but 1.0.4 failed to start my LXC containers. I did not research the issue at the time, so I revert to 1.0.3-r2. Today I updated to 1.0.5 and my LXC containers still fail to start. I have not changed my domain XML at all. I am looking for suggestions on what to try to resolve the problem. Maybe I'm missing a package or have something mus-configured for libvirt-1.0.5. btw, A month ago I updates to the most recent "udev" (udev-200). This required me to rename all of my network interfaces. My QEMU and LXC containers continued to work. All of my VMs use bridged networking on "br0" or "br1". Those virtual interfaces are not bridged to any physical NIC. They exist only inside my host's kernel. I have extensive iptables rules to filter traffic between my network segments (physical + virtual). TL;DR: this was burried in a log file: " error : lxcContainerMountFSDevPTS:808 : Failed to mount /.oldroot//var/run/libvirt/lxc/dwj-lnx-dev.devpts on /dev/pts: No such file or directory". But that directory DOES exist in the container: ostara ~ # ls -ld /vm/lxc/dwj-lnx-dev/dev/pts/ drwxr-xr-x 2 root root 4096 Apr 27 2011 /vm/lxc/dwj-lnx-dev/dev/pts/ If I revert to libvirt-1.0.3-r2, I can boot my LXC containers again. But if possible, I'd like to keep my system current. I've ran the usual Gentoo tools to verify that all package dependencies are installed, revdep-rebuild reports that all ELFs link against the proper shared objects. ostara ~ # virsh --version 1.0.5 ostara ~ # equery l libvirt * Searching for libvirt ... [IP-] [ ] app-emulation/libvirt-1.0.5:0 ostara ~ # equery -q u libvirt | xargs echo -audit -avahi +caps -firewalld -fuse -iscsi +libvirtd +lvm +lxc +macvtap +nfs +nls -numa -openvz -parted +pcap -phyp -policykit -python +qemu -rbd +sasl +udev +uml +vepa +virt-network -virtualbox -xen ostara ~ # virsh -c lxc:/// list --all Id Name State ---------------------------------------------------- - dwj-lnx-dev shut off - vm1 shut off ostara ~ # virsh -c lxc:/// start dwj-lnx-dev error: Failed to start domain dwj-lnx-dev error: internal error guest failed to start: PATH=/bin:/sbin TERM=linux container=lxc-libvirt container_uuid=fbcd8c3a-9939-12b4-727d-5d3526bc448f LIBVIRT_LXC_UUID=fbcd8c3a-9939-12b4-727d-5d3526bc448f LIBVIRT_LXC_NAME=dwj-lnx-dev /sbin/init error receiving signal from container: Input/output error ostara ~ # tail -n 10 /var/log/libvirt/libvirtd.log 2013-05-14 13:03:47.549+0000: 22352: info : libvirt version: 1.0.5 2013-05-14 13:03:47.549+0000: 22352: error : virDBusGetSystemBus:86 : internal error Unable to get DBus system bus connection: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory 2013-05-14 13:03:47.549+0000: 22352: warning : ebiptablesDriverInitCLITools:4233 : Could not find 'ip6tables' executable 2013-05-14 13:04:21.629+0000: 22341: error : virNetSocketReadWire:1362 : Cannot recv data: Connection reset by peer 2013-05-14 13:04:21.729+0000: 22345: error : virLXCProcessStart:1285 : internal error guest failed to start: PATH=/bin:/sbin TERM=linux container=lxc-libvirt container_uuid=fbcd8c3a-9939-12b4-727d-5d3526bc448f LIBVIRT_LXC_UUID=fbcd8c3a-9939-12b4-727d-5d3526bc448f LIBVIRT_LXC_NAME=dwj-lnx-dev /sbin/init error receiving signal from container: Input/output error 2013-05-14 13:04:21.731+0000: 22345: error : virNetDevSetOnline:544 : Cannot get interface flags on 'veth0': No such device 2013-05-14 13:04:21.778+0000: 22345: error : virCommandWait:2353 : internal error Child process (ip link del veth0) unexpected exit status 1: Cannot find device "veth0" 2013-05-14 13:04:21.917+0000: 22345: error : virCommandWait:2353 : internal error Child process (ip link del veth1) unexpected exit status 1: Cannot find device "veth1" ostara ~ # tail -n 10 /var/log/libvirt/lxc/dwj-lnx-dev.log 2013-05-14 13:04:20.894+0000: starting up PATH=/bin:/sbin:/bin:/sbin:/usr/bin:/usr/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/usr/x86_64-pc-linux-gnu/gcc-bin/4.6.3:/usr/x86_64-pc-linux-gnu/i686-pc-mingw32/gcc-bin/4.7.2 LIBVIRT_DEBUG=3 LIBVIRT_LOG_OUTPUTS=3:stderr /usr/libexec/libvirt_lxc --name dwj-lnx-dev --console 22 --security=none --handshake 25 --background --veth veth1 PATH=/bin:/sbin TERM=linux container=lxc-libvirt container_uuid=fbcd8c3a-9939-12b4-727d-5d3526bc448f LIBVIRT_LXC_UUID=fbcd8c3a-9939-12b4-727d-5d3526bc448f LIBVIRT_LXC_NAME=dwj-lnx-dev /sbin/init 2013-05-14 13:04:21.562+0000: 1: info : libvirt version: 1.0.5 2013-05-14 13:04:21.562+0000: 1: error : lxcContainerMountFSDevPTS:808 : Failed to mount /.oldroot//var/run/libvirt/lxc/dwj-lnx-dev.devpts on /dev/pts: No such file or directory 2013-05-14 13:04:21.562+0000: 22562: info : libvirt version: 1.0.5 2013-05-14 13:04:21.562+0000: 22562: error : virLXCControllerRun:1481 : error receiving signal from container: Input/output error error receiving signal from container: Input/output error 2013-05-14 13:04:21.628+0000: 22562: error : virCommandWait:2353 : internal error Child process (ip link del veth1) unexpected exit status 1: Cannot find device "veth1" ostara ~ # virsh -c lxc:/// dumpxml dwj-lnx-dev <domain type='lxc'> <name>dwj-lnx-dev</name> <uuid>fbcd8c3a-9939-12b4-727d-5d3526bc448f</uuid> <memory unit='KiB'>500000</memory> <currentMemory unit='KiB'>500000</currentMemory> <vcpu placement='static'>2</vcpu> <resource> <partition>/machine</partition> </resource> <os> <type arch='x86_64'>exe</type> <init>/sbin/init</init> </os> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>destroy</on_crash> <devices> <emulator>/usr/libexec/libvirt_lxc</emulator> <filesystem type='mount' accessmode='passthrough'> <source dir='/vm/lxc/dwj-lnx-dev'/> <target dir='/'/> </filesystem> <filesystem type='mount' accessmode='passthrough'> <source dir='/usr/portage'/> <target dir='/usr/portage'/> </filesystem> <filesystem type='mount' accessmode='passthrough'> <source dir='/usr/src'/> <target dir='/usr/src'/> </filesystem> <filesystem type='mount' accessmode='passthrough'> <source dir='/home'/> <target dir='/home'/> </filesystem> <interface type='bridge'> <mac address='82:00:00:00:01:00'/> <source bridge='br0'/> </interface> <console type='pty'> <target type='lxc' port='0'/> </console> </devices> </domain> ostara ~ # ifconfig -a | egrep -v "(RX|TX) (packets|errors)" br0: flags=4355<UP,BROADCAST,PROMISC,MULTICAST> mtu 1500 inet 192.168.2.1 netmask 255.255.255.0 broadcast 192.168.2.255 ether 00:00:00:00:00:00 txqueuelen 0 (Ethernet) br1: flags=4419<UP,BROADCAST,RUNNING,PROMISC,MULTICAST> mtu 1500 inet 192.168.3.1 netmask 255.255.255.0 broadcast 192.168.3.255 ether 06:9b:23:fb:14:5f txqueuelen 0 (Ethernet) enp4s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.0.1 netmask 255.255.255.0 broadcast 192.168.0.255 ether bc:ae:c5:16:6f:3b txqueuelen 1000 (Ethernet) device interrupt 18 memory 0xfade0000-fae00000 enp5s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet xx.xx.xx.xx netmask 255.255.252.0 broadcast xx.xx.xx.xx ether bc:ae:c5:16:70:3f txqueuelen 1000 (Ethernet) device interrupt 19 memory 0xfaee0000-faf00000 enp6s2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.4.1 netmask 255.255.255.0 broadcast 192.168.4.255 ether 00:03:6d:14:78:30 txqueuelen 1000 (Ethernet) lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 loop txqueuelen 0 (Local Loopback) virbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500 inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255 ether c2:ff:56:b7:a7:cd txqueuelen 0 (Ethernet)

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[libvirt-users] libvirt support for armv8
by prakash b 14 May '13

14 May '13

Is libvirt supports armv8 arch? Thanks, Prakash B

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[libvirt-users] Libvirt 1.0.5 with Openvswitch 1.11.90: unable to add bridge br0 port vnet0 operation not supported
by Christopher Paggen (cpaggen) 13 May '13

13 May '13

Howdy, Running the most recent OVS and libvirt I'm running into the following error message with virt-install: root@qemu-kvm:~/libvirt-1.0.5#<mailto:root@qemu-kvm:~/libvirt-1.0.5#> ovs-vsctl -V ovs-vsctl (Open vSwitch) 1.11.90 Compiled May 6 2013 22:37:22 root@qemu-kvm:~/libvirt-1.0.5#<mailto:root@qemu-kvm:~/libvirt-1.0.5#> root@qemu-kvm:~/libvirt-1.0.5#<mailto:root@qemu-kvm:~/libvirt-1.0.5#> virt-install --connect qemu:///system --name DSL2 --ram 1024 --vcpus 1 --disk path=/tmp/dsl2,size=1,bus=virtio,cache=none --network=bridge:br0 --vnc --os-type=linux --cdrom /dev/sr0 Starting install... ERROR Unable to add bridge br0 port vnet0: Operation not supported Domain installation does not appear to have been successful. If it was, you can restart your domain by running: virsh --connect qemu:///system start DSL2 otherwise, please restart your installation. root@qemu-kvm:~/libvirt-1.0.5#<mailto:root@qemu-kvm:~/libvirt-1.0.5#> ovs-vsctl del-port br0 vnet0 root@qemu-kvm:~/libvirt-1.0.5#<mailto:root@qemu-kvm:~/libvirt-1.0.5#> libvirtd --version libvirtd (libvirt) 1.0.5 root@qemu-kvm:~/libvirt-1.0.5#<mailto:root@qemu-kvm:~/libvirt-1.0.5#> virsh --version 1.0.5 root@qemu-kvm:~/libvirt-1.0.5#<mailto:root@qemu-kvm:~/libvirt-1.0.5#> virt-install --connect qemu:///system --name DSL2 --ram 1024 --vcpus 1 --disk path=/tmp/dsl2,size=1,bus=virtio,cache=none --network=bridge:br0 --vnc --os-type=linux --cdrom /dev/sr0 Starting install... ERROR Unable to add bridge br0 port vnet0: Operation not supported Domain installation does not appear to have been successful. If it was, you can restart your domain by running: virsh --connect qemu:///system start DSL2 otherwise, please restart your installation. root@qemu-kvm:~/libvirt-1.0.5#<mailto:root@qemu-kvm:~/libvirt-1.0.5#> root@qemu-kvm:~/libvirt-1.0.5#<mailto:root@qemu-kvm:~/libvirt-1.0.5#> ovs-vsctl show b81788a2-f45d-4fad-aad2-f423e6e70bad Bridge "br0" Port "eth1" Interface "eth1" Port "br0" Interface "br0" type: internal Port "tap0" Interface "tap0" root@qemu-kvm:~/libvirt-1.0.5#<mailto:root@qemu-kvm:~/libvirt-1.0.5> Even if I create a new OVS switch I get the same result: root@qemu-kvm:~/libvirt-1.0.5#<mailto:root@qemu-kvm:~/libvirt-1.0.5#> ovs-vsctl add-br b1 root@qemu-kvm:~/libvirt-1.0.5#<mailto:root@qemu-kvm:~/libvirt-1.0.5#> virt-install --connect qemu:///system --name DSL2 --ram 1024 --vcpus 1 --disk path=/tmp/dsl2,size=1,bus=virtio,cache=none --network=bridge:b1 --vnc --os-type=linux --cdrom /dev/sr0 Starting install... ERROR Unable to add bridge b1 port vnet0: Operation not supported Domain installation does not appear to have been successful. If it was, you can restart your domain by running: virsh --connect qemu:///system start DSL2 otherwise, please restart your installation. root@qemu-kvm:~/libvirt-1.0.5#<mailto:root@qemu-kvm:~/libvirt-1.0.5#> Nothing in the openvswitch log file (OVS itself works fine, I can start VMs with the kvm command line). Any clues? I'm not too sure how to trace libvirt calls to OVS (according to the release notes, versions 1.0+ of libvirtd should work with OVS. Note: I am not using brcompat, I believe it's obsolete in the OVS version I'm running). Thanks, Chris.

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[libvirt-users] Check Swap Usage on Guest VM from Host
by Nehal J. Wani 13 May '13

13 May '13

I was wondering if swap usage of Guest VM can be checked from Host machine via command line.Is it possible? -- Nehal J. Wani UG2, BTech CS+MS(CL) IIIT-Hyderabad http://commanlinewani.blogspot.com

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[libvirt-users] Way for a VM to reboot from a snapshot?
by Ken Coar 10 May '13

10 May '13

Using the koan command, a VM can essentially request that it be reprovisioned. Is there any way for a VM to request that it reboot from a snapshot taken with virsh? Thanks.. -- #ken B-)} Ken Coar, RHCE, RHCSA, Sanagendamgagwedweinini IT Engineering Tower, Red Hat/RDU "Millennium hand and shrimp!"

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[libvirt-users] latency between LIFECYCLE event and notification generation
by nishant burte 10 May '13

10 May '13

Hi, I have registered for LIFECYCLE events of libvirt. But I don't know, 1. about the the latency of these events happening and notification generation. e.g. suppose a VM goes down. How much time it takes to realize that the particular VM has gone down(going to say, DEFINED state) and then notification is generated? 2. Second question is, can someone please explain what are the sequence of steps happen between a VM going down and the notification is generated? Coul you please answer both the queries? Thanks Nishant

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