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[libvirt-users] 'virsh capabilities' on Debian Wheezy-amd64 reports different cpu to Wheezy-i386 (on same hardware)
by Struan Bartlett 03 Mar '14

03 Mar '14

Hi On a range of Dell servers containing Intel 64bit processors, 'virsh capabilities' reports the cpu differently on Debian Wheezy-amd64 and Wheezy-i386. The results given by the Wheezy-i386 version seem very wrong (since n270 is an Atom processor). Apart from architecture, the package versions of libvirt-bin are identical: 1.2.1-1~bpo70+1. /usr/share/libvirt/cpu_map.xml files are identical. Is this a known issue? Details for one server are: # cat /proc/cpuinfo| head -n 26 processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 45 model name : Intel(R) Xeon(R) CPU E5-2650L 0 @ 1.80GHz stepping : 7 microcode : 0x70d cpu MHz : 1800.054 cache size : 20480 KB physical id : 0 siblings : 16 core id : 0 cpu cores : 8 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm ida arat xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid bogomips : 3600.10 clflush size : 64 cache_alignment : 64 address sizes : 46 bits physical, 48 bits virtual power management: ... </proc/cpuinfo for processors 1..31 snipped here for brevity> # Running Wheezy-amd64 libvirt-bin1.2.1-1~bpo70+1 # virsh capabilities <cpu> <arch>x86_64</arch> <model>SandyBridge</model> <vendor>Intel</vendor> <topology sockets='2' cores='8' threads='2'/> <feature name='pdpe1gb'/> <feature name='osxsave'/> <feature name='dca'/> <feature name='pcid'/> <feature name='pdcm'/> <feature name='xtpr'/> <feature name='tm2'/> <feature name='est'/> <feature name='smx'/> <feature name='vmx'/> <feature name='ds_cpl'/> <feature name='monitor'/> <feature name='dtes64'/> <feature name='pbe'/> <feature name='tm'/> <feature name='ht'/> <feature name='ss'/> <feature name='acpi'/> <feature name='ds'/> <feature name='vme'/> </cpu> # Running Wheezy-i386 libvirt-bin1.2.1-1~bpo70+1 # virsh capabilities <cpu> <arch>x86_64</arch> <model>n270</model> <vendor>Intel</vendor> <topology sockets='2' cores='8' threads='2'/> <feature name='lahf_lm'/> <feature name='lm'/> <feature name='rdtscp'/> <feature name='pdpe1gb'/> <feature name='avx'/> <feature name='osxsave'/> <feature name='xsave'/> <feature name='aes'/> <feature name='tsc-deadline'/> <feature name='popcnt'/> <feature name='x2apic'/> <feature name='sse4.2'/> <feature name='sse4.1'/> <feature name='dca'/> <feature name='pcid'/> <feature name='pdcm'/> <feature name='xtpr'/> <feature name='cx16'/> <feature name='tm2'/> <feature name='est'/> <feature name='smx'/> <feature name='vmx'/> <feature name='ds_cpl'/> <feature name='dtes64'/> <feature name='pclmuldq'/> <feature name='pbe'/> <feature name='tm'/> <feature name='ht'/> <feature name='ss'/> <feature name='acpi'/> <feature name='ds'/> <feature name='pse36'/> </cpu> Kind regards Struan Bartlett -- Struan Bartlett NewsNow Publishing Limited Tel: +44 (0)845 838 8890 Fax: +44 (0)845 838 8898 The UK's #1 News Portal: > www.NewsNow.co.uk <http://www.NewsNow.co.uk> (est. 1998) Also tailored for Mobile: > mobile.NewsNow.co.uk <http://mobile.NewsNow.co.uk/> Now with FREE Personalisation: > Register <http://www.NewsNow.co.uk/register/> Bespoke B2B Internet News Monitoring: > Internet News Monitoring <http://www.newsnow.co.uk/services/newsmonitoring/> Bespoke B2B Headlines for Websites: > Editorial-In-A-Box <http://www.newsnow.co.uk/services/websites/> NewsNow Publishing Limited, trading also as NewsNow.co.uk, is a company registered in England and Wales under company no. 3435857 with registered office The Euston Office, 1 Euston Square, 40 Melton Street, London NW1 2FD

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[libvirt-users] Set a domain name instead of an ip address into tls certificate
by Pasquale Dir 03 Mar '14

03 Mar '14

I tried to set cn=myMachine instead of cn=192.168.1.x and...everything frezees! virsh -c qemu://.../system tries to connect forever. You really need static ip addresses in the cn field?? I think this is an HUGE bug: you are saying to me that each time I change network or ip (because, dear sirs, dhcp exists) I have to generate a whole new couple of certificates?? I hope it is not the case.... regards Pasquale

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[libvirt-users] What is the best virtual network for my case?
by Pasquale Dir 01 Mar '14

01 Mar '14

I have an openvswitch switch controlled by a controller. I want to have a group of virtual machines which can be on different nodes but sharing the same ip address thus having the illusion of being on the same network. So, each vm I start gets an ip (I was thinking about something like 192.168.y.x 255.255.0.0 where y would be the node and x the vm, this way each node can have its own dhcp server) which is virtual and belongs to the same network of the others. Throught openvswitch I would take care of the communication between different machines if they belong to different phisical networks. So, what is the best network configuration according to you?

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[libvirt-users] Mouse events
by lukass.vacek＠seznam.cz 28 Feb '14

28 Feb '14

Hello, I would like to ask if is there any way how to send mouse event to running domain. I am looking for something like a method for handling keyboard events(virDomainSendKey method). Is it implemented yet or is it future todo item(when It will be released?)? Thank for your answer

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[libvirt-users] bridge / ubuntu / no arp reply
by François Chenais 27 Feb '14

27 Feb '14

Hello I'm trying to setup a bridged guest on an ubuntu 13.10 but it doesn't work. (Everything is ok with NAT) Network sniffing shows that arp replies don't come back to the guest. Test 1 ------ Guest : ping host_bridge_ip (ok) Test 2 ------ Guest: ping other_lan_host (KO) other_lan_host - receives arp who-is request - sends arp reply - arp -a shows the guest macaddr => Guest doesn't receive reply Test 3 ------ other_lan_host ping the Guest (KO) - arp -a shows "incomplete" addr - Guest receives nothing On Host ------- network tcpdump on bridge or vnet interfaces shows request but no reply ... Thanks in advance for help or ideas François

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[libvirt-users] POOL of SRIOV networks with multiple PFs
by john fisher 27 Feb '14

27 Feb '14

We are using an Intel 82599 chip that allows 4 PFs ( eth0..3) per VM. I am able to manually start VMs using the hostdev definition for the four network connections, but I'd like to start using the pool approach. Ubuntu 12.04 libvirt 1.0.0 Following: http://wiki.libvirt.org/page/Networking#Assignment_from_a_pool_of_SRIOV_VFs… I can get a pool working with one network- <network> <name>passthrough_eth0</name> <forward mode='hostdev' managed='yes'> <pf dev='eth0'/> </forward> </network> and I can get the four networks started using similar xml. Using one stanza of network type passthrough, I can get a pool on one PF. But when I try to create the VM using four stanzas of network definition, <interface type='network'> <source network='passthrough_eth0'/> </interface> <interface type='network'> <source network='passthrough_eth1'/> </interface> <interface type='network'> <source network='passthrough_eth2'/> </interface> <interface type='network'> <source network='passthrough_eth3'/> </interface> I get this error: "error: Failed to create domain from ./vm0.xml error: internal error Process exited while reading console log output: kvm: -device pci-assign,host=01:10.1,id=hostdev0,configfd=47,bus=pci.0,addr=0x8: Duplicate ID 'hostdev0' for device " Ideas? -- John Fisher

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[libvirt-users] Problem starting VM
by junkmail 27 Feb '14

27 Feb '14

I am having a problem starting a VM and seem to be unable to determine what the problem is. I get the following lines in my log files. Feb 26 06:32:31 yours dbus[14359]: [system] Activating service name='org.freedesktop.machine1' (using servicehelper) 2014-02-26 06:32:31.914+0000: 14451: error : virDBusCallMethod:1205 : Launch helper exited with unknown return code 1 Feb 26 06:32:31 yours dbus[14359]: [system] Activated service 'org.freedesktop.machine1' failed: Launch helper exited with unknown return code 1 This is running on Gentoo using dbus 1.6.18 Libvirt 1.2.1 qemu 1.5.3 Kernel 3.10.7 Let me know what else I can provide. Thanks

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[libvirt-users] VirtFS accessmode
by Lanati, Matteo 27 Feb '14

27 Feb '14

Hi all, I'm trying to share a folder between a host and a guest using VirtFS. The source is NAS mounted on the host and QEMU runs as unprivileged user. The only way for me to use the folder inside the guest is to set the access mode to 'squash' but all file operations are performed by the user running QEMU. If I ran QEMU as root, the passthrough mode works as expected. Is there the possibility to configure the passthrough access also for non-root users? Thanks, Matteo Matteo Lanati Distributed Resources Group Leibniz-Rechenzentrum (LRZ) Boltzmannstrasse 1 85748 Garching b. München (Germany) Phone: +49 89 35831 8724

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[libvirt-users] VM Creation Timestamp
by Tony Atkinson 27 Feb '14

27 Feb '14

Hello, Is there any way to query libvirt, ideally through virsh CLI utility or similar, to get a timestamp of when a VM was created. Or to put it another way, a timestamp of when a domain's UUID was allocated. Many thanks, -- Tony Atkinson

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[libvirt-users] libvirt lxc /dev/null
by Nerijus Baliunas 26 Feb '14

26 Feb '14

Hello, I created lxc container on F19 with virt-manager and it starts OK. The only problem is that sshd does not run complaining "/dev/null is not a character device". # ls -l /dev/null -rw-r--r-- 1 root root 0 2014-02-25 22:39 /dev/null /sys/fs/cgroup/devices/machine/VM_NAME.libvirt-lxc/devices.list has "c 1:3 rwm" line, but I cannot create /dev/null: # mknod /dev/nulll c 1 3 mknod: `/dev/nulll': Operation not permitted Thanks, Nerijus

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