November 2013 - Users - libvirt List Archives

[libvirt-users] Error in snapshot create in libvirt 1.1.4
by Georg Meier 11 Nov '13

11 Nov '13

Hi list, i currently have the following issue: I did a test upgrade to libvirt 1.1.4 and now i cannot create new snapshots which can be reverted. Following Situation: Virtualization: kvm Disktype: qcow2 qemu XML: <cpu mode='host-passthrough'> </cpu> Creating of snapshot: virsh snapshot-create-as <guest> <name> <description> --atomic Now i craete a snapshot and as soon as i revert i get the following error: error : virCPUDefParseXML:367 : XML error: Non-empty feature list specified without CPU model I think the error is inside the snapshot xml (virsh snapshot-dumpxml): <cpu mode='host-passthrough'> <feature policy='require' name='pdpe1gb'/> <feature policy='require' name='osxsave'/> <feature policy='require' name='dca'/> <feature policy='require' name='pcid'/> <feature policy='require' name='pdcm'/> <feature policy='require' name='xtpr'/> <feature policy='require' name='tm2'/> <feature policy='require' name='est'/> <feature policy='require' name='smx'/> <feature policy='require' name='vmx'/> <feature policy='require' name='ds_cpl'/> <feature policy='require' name='monitor'/> <feature policy='require' name='dtes64'/> <feature policy='require' name='pbe'/> <feature policy='require' name='tm'/> <feature policy='require' name='ht'/> <feature policy='require' name='ss'/> <feature policy='require' name='acpi'/> <feature policy='require' name='ds'/> <feature policy='require' name='vme'/> </cpu> In older libvirt versions < 1.0.0 the xml looks the following way (virsh snapshot-dumpxml): <cpu mode='host-passthrough' match='minimum'> <model>SandyBridge</model> <vendor>Intel</vendor> <feature policy='require' name='pdpe1gb'/> <feature policy='require' name='osxsave'/> <feature policy='require' name='dca'/> <feature policy='require' name='pcid'/> <feature policy='require' name='pdcm'/> <feature policy='require' name='xtpr'/> <feature policy='require' name='tm2'/> <feature policy='require' name='est'/> <feature policy='require' name='smx'/> <feature policy='require' name='vmx'/> <feature policy='require' name='ds_cpl'/> <feature policy='require' name='monitor'/> <feature policy='require' name='dtes64'/> <feature policy='require' name='pbe'/> <feature policy='require' name='tm'/> <feature policy='require' name='ht'/> <feature policy='require' name='ss'/> <feature policy='require' name='acpi'/> <feature policy='require' name='ds'/> <feature policy='require' name='vme'/> </cpu> So for what ever reason the model and vendor tag are not copied inside the snapshot metadata xml when using cpu mode cpu-passthrough. virsh dumpxml with --update-cpu flag reports the correct cpu node with model and vendor tags. After a stop of libvirtd and loooking inside the xml file the cpu tag looks the following: <cpu mode='host-passthrough' match='minimum'> <model>SandyBridge</model> <vendor>Intel</vendor> <feature policy='require' name='pdpe1gb'/> <feature policy='require' name='osxsave'/> <feature policy='require' name='dca'/> <feature policy='require' name='pcid'/> <feature policy='require' name='pdcm'/> <feature policy='require' name='xtpr'/> <feature policy='require' name='tm2'/> <feature policy='require' name='est'/> <feature policy='require' name='smx'/> <feature policy='require' name='vmx'/> <feature policy='require' name='ds_cpl'/> <feature policy='require' name='monitor'/> <feature policy='require' name='dtes64'/> <feature policy='require' name='pbe'/> <feature policy='require' name='tm'/> <feature policy='require' name='ht'/> <feature policy='require' name='ss'/> <feature policy='require' name='acpi'/> <feature policy='require' name='ds'/> <feature policy='require' name='vme'/> </cpu> After the start of libvirtd virsh reports the cpu tag with missing vendor and model. Does anybody else has this problem? Best regards Georg

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[libvirt-users] virt-install not spawning VM
by Sudarshan Pathalam (supathal) 08 Nov '13

08 Nov '13

Hello, In trying girt-install with below parameters I get the following error, -bash: virt-install --connect qemu:///system --name vm1 --ram 2048 --vcpus: No such file or directory What am I doing wrong? Thanks in advance. host:~# qemu-img create -f qcow2 /var/lib/libvirt/images/vm1.qcow2 20480 Formatting '/var/lib/libvirt/images/vm1.qcow2', fmt=qcow2 size=20480 encryption=off cluster_size=65536 host:~# ls /var/lib/libvirt/images/ ubuntu-12.04.3-server-amd64.iso vm1.qcow2 host:~# virt-install \ > --connect qemu:///system \ > --name vm1 \ > --ram 2048 \ > --vcpus 2 \ > --disk path=/var/lib/libvirt/images/vm1.qcow2,size=20 \ > --cdrom /var/lib/libvirt/images/ubuntu-12.04.3-server-amd64.iso \ > --graphics vnc \ > --virt-type kvm \ > --os-type linux\ > --network=br1 \ > --hvm -bash: virt-install --connect qemu:///system --name vm1 --ram 2048 --vcpus: No such file or directory

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[libvirt-users] RBD images locking
by NEVEU Stephane 08 Nov '13

08 Nov '13

Hi, One short question : Is there any chance to see locks on rbd/images in the next release ? Thank you :)

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[libvirt-users] Calling 'virsh' from within a hook script - avoid deadlock?
by TSADOK, Shlomi (Shlomi) 07 Nov '13

07 Nov '13

I'm trying to create a hook that attaches several virtio-scsi disks to a starting vm, and it seems like the hook enters a deadlock while attempting to do so. Is there any workaround around this? Any better way, forking virsh execution somehow? Could anyone explain why this is creating a deadlock in the first place? Isn't libvirt multithreaded? Thanks for the help! Shlomi ### hook script: #!/bin/bash enum_scsi() { scsi_devices=`cd /dev;ls sd[^a]*` } gen_hba_xml() { cat > ./hba.xml << EOF <controller type='scsi' model='virtio-scsi'/> EOF } passthrough_start() { # create virtio-scsi HBA gen_hba_xml virsh attach-device --persistent $domain_name ./hba.xml rm -f ./hba.xml # attache scsi devices to guest enum_scsi for sd in ${scsi_devices[@]} do virsh attach-disk --persistent $domain_name /dev/${sd} ${sd} done } domain_name=$1 domain_event=$2 case $domain_event in start) passthrough_start ;; *) echo "qemu hook called with unexpected options $*" >&2 ;; esac ### starce libvirt: [root@localhost ~]# strace -f -p 14630 Process 14630 attached with 11 threads - interrupt to quit [pid 14640] futex(0xc34ebc, FUTEX_WAIT_PRIVATE, 2303, NULL <unfinished ...> [pid 14638] futex(0xc34ebc, FUTEX_WAIT_PRIVATE, 2303, NULL <unfinished ...> [pid 14637] futex(0xc34ebc, FUTEX_WAIT_PRIVATE, 2303, NULL <unfinished ...> [pid 14636] futex(0xc34ebc, FUTEX_WAIT_PRIVATE, 2303, NULL <unfinished ...> [pid 14635] futex(0x7fcc240ccd80, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...> [pid 14639] futex(0xc34ebc, FUTEX_WAIT_PRIVATE, 2303, NULL <unfinished ...> [pid 14634] futex(0x7fcc240ccd80, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...> [pid 14631] restart_syscall(<... resuming interrupted call ...> <unfinished ...> [pid 14633] futex(0x7fcc240ccd80, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...> [pid 14630] restart_syscall(<... resuming interrupted call ...> <unfinished ...> [pid 14632] futex(0xc34e24, FUTEX_WAIT_PRIVATE, 3091, NULL^C <unfinished ...> ... [pid 14630] poll([{fd=7, events=POLLIN}, {fd=9, events=POLLIN}, {fd=12, events=POLLIN}, {fd=13, events=POLLIN}, {fd=6, events=POLLIN}, {fd=14, events=POLLIN}, {fd=16, events=POLLIN}, {fd=18, events=POLLIN|POLLOUT}, {fd=24, events=POLLIN}], 9, 1927) = 1 ([{fd=18, revents=POLLOUT}]) [pid 14630] gettid() = 14630 [pid 14630] gettid() = 14630 [pid 14630] gettid() = 14630 [pid 14630] gettid() = 14630 [pid 14630] gettid() = 14630 [pid 14630] gettid() = 14630 [pid 14630] gettid() = 14630 [pid 14630] gettid() = 14630 [pid 14630] gettid() = 14630 [pid 14630] gettid() = 14630 [pid 14630] gettid() = 14630 [pid 14630] gettid() = 14630 [pid 14630] write(18, "\0\0\0\34keep\0\0\0\1\0\0\0\1\0\0\0\2\0\0\0\0\0\0\0\0", 28) = 28 ... ### strace bash: [root@localhost ~]# strace -f -p 14783 Process 14783 attached - interrupt to quit wait4(-1, ...

3 6

[libvirt-users] Failing %check section.
by Jan Olszak 07 Nov '13

07 Nov '13

Hi there! I'm building libvirt-1.1.4 with the fallowing configuration. I had to modify the spec file: 1. Comment out requirements: xhtml1, scrub, shadow-utils 2. Added defines: %define _without_selinux 1 %define _without_hal 1 %define _without_libnl 1 %define _without_macvtap 1 %define _without_storage_fs 1 %define _without_network 1 %define _without_sasl 1 %define _without_qemu 1 %define _without_storage_lvm 1 %define _without_storage_iscsi 1 %define _without_storage_disk 1 %define _without_storage_mpath 1 %define _without_nwfilter 1 %define _without_libssh2 1 %define _without_hyperv 1 %define _without_phyp 1 %define dist tizen And the %check section fails. I attach the logs. Thanks! Jan

1 0

[libvirt-users] Installed (but unpackaged) file(s) found.
by Jan Olszak 07 Nov '13

07 Nov '13

Hi! I'm building libvirt-1.1.4 with the fallowing configuration. I had to modify the spec: 1. Comment out requirements: xhtml1, scrub, shadow-utils 2. Added defines: %define _without_selinux 1 %define _without_hal 1 %define _without_libnl 1 %define _without_macvtap 1 %define _without_storage_fs 1 %define _without_network 1 %define _without_sasl 1 %define _without_qemu 1 %define _without_storage_lvm 1 %define _without_storage_iscsi 1 %define _without_storage_disk 1 %define _without_storage_mpath 1 %define _without_nwfilter 1 %define _without_libssh2 1 %define _without_hyperv 1 %define _without_phyp 1 %define dist tizen I commented out %check section from the spec because it failed and I got the fallowing error: Installed (but unpackaged) file(s) found. Logs are in the attachment. Any ideas? Thanks! Jan

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[libvirt-users] Building libvirt for ARM tizen.
by Jan Olszak 06 Nov '13

06 Nov '13

Hi there! I'm building libvirt-1.1.4 on Tizen. I had to modify the spec file: 1. Comment out requirements: xhtml1, scrub, shadow-utils 2. Added defines: %define _without_selinux 1 %define _without_hal 1 %define _without_libnl 1 %define _without_macvtap 1 %define _without_storage_fs 1 %define _without_network 1 %define _without_sasl 1 %define _without_qemu 1 %define _without_storage_lvm 1 %define _without_storage_iscsi 1 %define _without_storage_disk 1 %define _without_storage_mpath 1 %define _without_nwfilter 1 %define _without_libssh2 1 %define _without_hyperv 1 %define _without_phyp 1 %define dist tizen (I build with Tizen's GBS and I had a problem with passing arguments to rpmbuild, so I just added those defines) My problem is a undefined reference to virAtomicLock: [ 227s] ../src/.libs/libvirt-setuid-rpc-client.a(libvirt_setuid_rpc_client_la-virobj ect.o): In function `virClassNew': [ 227s] /home/abuild/rpmbuild/BUILD/libvirt-1.1.4/src/util/virobject.c:132: undefined reference to `virAtomicLock' [ 227s] ../src/.libs/libvirt-setuid-rpc-client.a(libvirt_setuid_rpc_client_la-virobj ect.o): In function `virObjectNew': [ 227s] /home/abuild/rpmbuild/BUILD/libvirt-1.1.4/src/util/virobject.c:202: undefined reference to `virAtomicLock' [ 227s] ../src/.libs/libvirt-setuid-rpc-client.a(libvirt_setuid_rpc_client_la-virobj ect.o): In function `virObjectUnref': [ 227s] /home/abuild/rpmbuild/BUILD/libvirt-1.1.4/src/util/virobject.c:270: undefined reference to `virAtomicLock' [ 227s] ../src/.libs/libvirt-setuid-rpc-client.a(libvirt_setuid_rpc_client_la-virobj ect.o): In function `virObjectRef': [ 227s] /home/abuild/rpmbuild/BUILD/libvirt-1.1.4/src/util/virobject.c:295: undefined reference to `virAtomicLock' Any ideas? Thanks! Jan

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[libvirt-users] virConnectListAllDomains support for PowerVM
by Camilo Aguilar 06 Nov '13

06 Nov '13

Hey guys, I'm so glad you added the new set of virConnectListAllDomains functions, it simplifies a lot our work!. I was only wondering why there is no support for PowerVM. Is it that it hasn't been developed or is there some technical hardship? Best, Camilo Aguilar

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[libvirt-users] libvirt networking using VLAN Tag basics
by Dan Sa 05 Nov '13

05 Nov '13

topology : two guest connected to physical LAN (vlan 620 and vlan 621) on host : 1) creating bridge br0 2) creating bridge for guest 1 and guest 2 - to separate traffic 3) virtual network1 : I have default NAT 192.168.122.x DHCP feeding IP to eth1 4) virtual network2 : I want to use 192.168.0.0 for eth0 my question is what would be my virtual network2 looks like : following is default xml : <network> <name>default</name> <uuid>8778244b-1a0c-c15f-c348-26462a07a639</uuid> <forward mode='nat'/> <bridge name='virbr0' stp='on' delay='0' /> <mac address='52:54:00:3E:19:B3'/> <ip address='192.168.122.1' netmask='255.255.255.0'> <dhcp> <range start='192.168.122.2' end='192.168.122.254' /> </dhcp> </ip> </network> in virtmanager I assign this default to NIC1 and gets IP in range 192.168.122.x I want to define another network and assign to NIC2 so I can get IP in range 192.168.0.x my guest are on interface em2.620, em2.621 etc thanks

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[libvirt-users] Using resource pools (in vmware vcenter) with libvirt
by Ashutosh Bisht 05 Nov '13

05 Nov '13

Hi I am evaluating use of libvirt to manage a cluster of ESXi servers. We plan to use "resource pool" concept of vcenter/vmware to easily scale-up or scale-down the cluster of ESXi servers >From vmware doc "Resource pools are partitions of computing and memory resources from a single host or a cluster" Since VM can be designated to hosts, clusters or "resource pool".. assigning VM to resource pool allows a simple way to manage scale-up / scale-down operations. This is because one doesn't need to know identity of ESXi server (from cluster of servers) to assign/place a VM.. one can just refer to resource pool. >From reading the doc of libvirt, it seems that libvirt always requires identity of ESXi servers in all the (vcenter) API calls. Is my understanding correct? If so, does libvirt have a similar concept/notion so that VM life-cycle can be managed without knowing identity of underlying server? with regards Ashutosh

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