November 2012 - Users - libvirt List Archives

[libvirt-users] some problem with snapshot by libvirt
by xingxing gao 22 Nov '14

22 Nov '14

Hi,all,i am using libvirt to manage my vm,in these days i am testing the libvirt snapshot ,but meet some problem: the snapshot was created from this command: snapshot-create-as win7 --disk-only --diskspec vda,snapshot=external --diskspec hda,snapshot=no but when i tried to revert from the snapshot which created from the above command ,i got error below: virsh # snapshot-revert win7 1338041515 --force error: unsupported configuration: revert to external disk snapshot not supported yet version: virsh # version Compiled against library: libvir 0.9.4 Using library: libvir 0.9.4 Using API: QEMU 0.9.4 Running hypervisor: QEMU 1.0.93

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[libvirt-users] NWFilter and IPv6
by Guido Winkelmann 06 Dec '12

06 Dec '12

Hi, Libvirt's nwfilter ships a number of useful filter scripts by default, but none to handle IPv6 traffic. Is there a particular reason for that, or is that just because nobody has got around to that yet? One interesting thing about dealing with IPv6 traffic is that hosts often have several auto-configured addresses, usually at least one auto-configured link- local address under fe80::/64 and one auto-configured one from router- advertisements. For writing filter rules, it would be nice to have some function/notation to calculate those auto-configured addresses for the user, so we can write something like this: <rule action='return' direction='out' priority='500'> <ipv6 srcipaddr='ipv6_autoconf($IPV6_PREFIX[@1], $IPV6_MASK[@1], $MAC)'/> </rule> <rule action='return' direction='out' priority='500'> <ipv6 srcipaddr='$IPV6'/> </rule> <rule action='drop' direction='out' priority='1000'/> or maybe more like this: <ipv6 mode='autoconf' field='srcipaddr' prefix='$IPV6_PREFIX[@1]' netmask='$IPV6_MASK[@1]' mac='$MAC)'/> Guido

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[libvirt-users] error: unsupported configuration: block I/O throttling not supported with this QEMU binary
by hzguanqiang 03 Dec '12

03 Dec '12

Hi, guys. I want to change block I/O throttle using 'virsh blkdeviotune' with vm not running, it reported an error: # virsh blkdeviotune instance-000000dc /dev/loop0 --total-bytes-sec 20000000 --total-iops-sec 20 --config error: Unable to change block I/O throttle error: unsupported configuration: block I/O throttling not supported with this QEMU binary I can do this when the vm is running. Is it a bug? How can I fix this problem. BTW,My libvirt version is 0.9.13: # virsh version Compiled against library: libvir 0.9.13 Using library: libvir 0.9.13 Using API: QEMU 0.9.13 Running hypervisor: QEMU 1.1.2 Thanks. 2012-11-28 hzguanqiang

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Re: [libvirt-users] [Freeipa-users] libvirt with vnc freeipa
by Simo Sorce 01 Dec '12

01 Dec '12

Hi Natxo, On Fri, 2012-11-30 at 13:06 +0100, Natxo Asenjo wrote: > hi, > > I'm following the howto on > http://freeipa.org/page/Libvirt_with_VNC_Consoles to authenticate > users voor virsh with ipa. > > I have it mostly working :-) except for the fact that libvirtd is not > respecting the sasl_allowed_username_list parameter. > > If I do not set it, and I have a realm ticket, then I may login virsh > or virtual manager and I get tickets for libvirt/vnc services. > > If I do set it, then it tells me the client is not in the whitelist, > so I cannot log in :-) > > > 2012-11-30 12:00:53.403+0000: 7786: error : > virNetSASLContextCheckIdentity:146 : SASL client admin not allowed in > whitelist > 2012-11-30 12:00:53.403+0000: 7786: error : > virNetSASLContextCheckIdentity:150 : Client's username is not on the > list of allowed clients > 2012-11-30 12:00:53.403+0000: 7786: error : > remoteDispatchAuthSaslStep:2447 : authentication failed: > authentication failed > 2012-11-30 12:00:53.415+0000: 7781: error : virNetSocketReadWire:999 : > End of file while reading data: Input/output error > > Is this a question for the libvirt folks or is it ok to post it here? Seem more like a libvirt or maybe even a cyrus-sasl question but I would be interested in knowing what is going on. Have you used a full principal name including the realm in the list, or just the bare user names ? CCing libvirt-users. Simo. -- Simo Sorce * Red Hat, Inc * New York

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[libvirt-users] error: argument unsupported: unable to handle disk requests in snapshot
by 于长江 01 Dec '12

01 Dec '12

Hello, a problem occurred during making a snapshot for a guest, ask for help... 1. the xml for snapshotdomain like this: # cat deployment.1 <domainsnapshot> <name>a</name> <disks> <disk name='/home/qcow2/disk.0'> <driver type='qcow2'/> <source file='/home/qcow2/disk.3'/> </disk> </disks> </domainsnapshot> 2. when i execute the command , a mistake occurred: # virsh snapshot-create qcow2 deployment.1 error: argument unsupported: unable to handle disk requests in snapshot 3. i add the parameter '--disk-only', another mistake occurred: # virsh snapshot-create qcow2 deployment.1 --disk-only error: Failed to take snapshot: unknown command: 'snapshot_blkdev' 4. my libvirtd version is 0.9.4 , i update to 1.0.0 , also had this problem # libvirtd --version libvirtd (libvirt) 1.0.0 5. this is my guest below: # ls -l -rw-r--r-- 1 oneadmin oneadmin 1540 2012-11-27 15:27 deployment.0 -rw-r--r-- 1 root root 204 2012-11-27 21:28 deployment.1 -rw-r--r-- 1 root root 5772345344 2012-11-28 17:42 disk.0 -rw-r--r-- 1 root root 459264 2012-11-27 21:02 disk.1 -rw-r--r-- 1 root root 372736 2012-11-27 15:25 disk.2 # virsh list Id 名� �� ---------------------------------------------------- 1 qcow2 running # qemu-img info disk.0 image: disk.0 file format: qcow2 virtual size: 20G (21474836480 bytes) disk size: 5.4G cluster_size: 65536 Snapshot list: ID TAG VM SIZE DATE VM CLOCK 1 1354019482 142M 2012-11-27 20:31:22 00:00:08.971 is there anyone has the same problem with me ? 于长江 | 东软 --------------------------------------------------------------------------------------------------- Confidentiality Notice: The information contained in this e-mail and any accompanying attachment(s) is intended only for the use of the intended recipient and may be confidential and/or privileged of Neusoft Corporation, its subsidiaries and/or its affiliates. If any reader of this communication is not the intended recipient, unauthorized use, forwarding, printing, storing, disclosure or copying is strictly prohibited, and may be unlawful.If you have received this communication in error,please immediately notify the sender by return e-mail, and delete the original message and all copies from your system. Thank you. ---------------------------------------------------------------------------------------------------

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[libvirt-users] error when configuring management access via PolicyKit
by Arindam Choudhury 29 Nov '12

29 Nov '12

Hi, Libvirtd is in listen mode. /etc/libvirt/libvirtd.conf listen_tls = 0 listen_tcp = 1 auth_tcp = "sasl" my trying to setup polkit authentication using http://wiki.libvirt.org/page/SSHPolicyKitSetup [root@aopcach ~]# cat /etc/polkit-1/localauthority/50-local.d/50-org.arindam-libvirt-remote-access.pkla [Remote libvirt SSH access] Identity=unix-user:arindam Action=org.libvirt.unix.manage ResultAny=yes ResultInactive=yes ResultActive=yes but it fails with: [arindam@aopcach ~]$ virsh -c qemu+ssh:///system arindam@localhost's password: error: authentication failed: polkit\56retains_authorization_after_challenge=1 Authorization requires authentication but no agent is available. error: failed to connect to the hypervisor

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[libvirt-users] How to passthru a block device from host to the quest os in kvm?
by Dennis Chen 27 Nov '12

27 Nov '12

Hi, Is there any APIs or some XML scheme can passthru a local block device of the host, eg, /dev/sda1 to its running guest OS? Specifically, say there is a block device /dev/sda1 in the host, mount it: mount /dev/sda1 /mnt; ls /mnt: a.file, b.file After passthru, the same /dev/sda1 can be used by the quest os(maybe the dev name is changed): mount /dev/sda1 /mnt; ls /mnt: a.file, b.file. BRs, Dennis

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[libvirt-users] Live migration with non-shared storage leads to corrupted file system
by Xinglong Wu 27 Nov '12

27 Nov '12

Hi, We have the following environment for live-migration with non-shared stroage between two nodes, Host OS: RHEL 6.3 Kernel: 2.6.32-279.el6.x86_64 Qemu-kvm: 1.2.0 libvirt: 0.10.1 and use "virsh" to do the job as virsh -c 'qemu:///system' migrate --live --persistent --copy-storage-all <guest-name> qemu+ssh://<target-node>/system The above command itself returns no error, and the migrated domain in the destination node starts fine. But when I log into the migrated domain, some commands failed immediately. And if I shutdown the domain, it won't boot up any more, complaining about the corrupted file system. Furthermore, I can confirm that the domain before migration works flawlessly after thorough test. The log file in /var/log/libvirt/qemu looks fine without any warnings or errors. And the only error message I can observe is found at /var/log/libvirt/libvirtd.log 2012-11-25 10:00:55.001+0000: 15398: warning : qemuDomainObjBeginJobInternal:838 : Cannot start job (query, none) for domain testVM; current job is (async nested, migration out) owned by (15397, 15397) 2012-11-25 10:00:55.001+0000: 15398: error : qemuDomainObjBeginJobInternal:842 : Timed out during operation: cannot acquire state change lock 2012-11-25 10:00:57.009+0000: 15393: error : virNetSocketReadWire:1184 : End of file while reading data: Input/output error I also noticed that the raw image file used by the migrated domain has the different sizes (reported by "du") before and after the migration. Is there anybody having the similiar experience with live migration on non-shared storage? It apparently leads to failed migrations in libvirt but no cirtical errors ever reported. Brett

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[libvirt-users] IPV6 configuration
by Patrick Chemla 27 Nov '12

27 Nov '12

Hi, I am running package libvirt-0.9.11.6-1.fc17.x86_64 on a kernel-3.6.5-1.fc17.x86_64 Fedora 17. I have set up the host with an IPv6 address, and I made some successfull tests transferring in IPv6 mode to/from other hosts. I want to set up libvirt to get an IPv6 address for his local network interface, same for the guests. I want the guests to be able to communicate directly on the internet through this ipv6 address. I have had a <ip family="ipv6" address="2001:xxxxxxx" /> line to the /etc/libvirtd/qemu/network/default.xml file but when I restart the host, this line disappears and no ipv6 address is added to the libvirt interface. I have added an ipv6 address to the guest in the same range of the host address. I can ping6 the address locally on the guest, but can't access the host. Is there somewhere a howto-libvirt-ipv6 to understand how to set up the whole stuff? Thanks for help Patrick

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[libvirt-users] Block device IO limits
by Davide Guerri 26 Nov '12

26 Nov '12

Hi all, is there a way to limit the throughput (or the number of operations per seconds) of a block device? I ask because I've a couple of misconfigured VMs that are performing a lot of disk activity (swapping I'd bet but I haven't access to their OS). Since their storage is on a NFS share they are slowing down other VMs on the same share. Thank you. Davide.

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[libvirt-users] image transfer incompletely in live migration
by yli＠cloudiya.com 25 Nov '12

25 Nov '12

Hi all, I am using libvirt version 0.10.1 and qemu-kvm version 1.2.0 with RHEL 6.3 When I use libvirt API to make block migrate with a VM, it failed frequently. I check the migrated VM and found that the filesystem damaged. But sometimes it works very fine, I don't know why, it seems to be random. All failed tests have the same condition, image transfer incompletely in live migration. The image I used is 10GB size, after a failed migration it has only about 400MB to 3GB in remote host. Here is the code: import libvirt from xml.dom import minidom name = "vm-01" host = libvirt.open("qemu:///system") vm = host.lookupByNmae(name) vm_xml_file = "/etc/libvirt/qemu/%s.xml" % name vm_xml = minidom.parse(vm_xml_file).documentElement.toxml() remote_host = "qemu+ssh://host02/system" remote = libvirt.open(remote_host) try: vm.migrate2(remote, vm_xml, 89, name, None, 0) except Exception,e: print str(e) Before run the code I have already create a image for migration in remote host 'host02'. Path, size, and privilege all OK. Here is the related log: in source host 'host01': 2012-11-24 05:14:40.001+0000: 24888: warning : qemuDomainObjBeginJobInternal:838 : Cannot start job (query, none) for domain wrksp-776; current job is (async nested, migration out) owned by (24890, 24890) 2012-11-24 05:16:16.398+0000: 24888: error : qemuDomainObjBeginJobInternal:842 : Timed out during operation: cannot acquire state change lock 2012-11-24 05:16:21.317+0000: 24887: error : virNetSocketReadWire:1184 : End of file while reading data: Input/output error in remote host 'host02': 2012-11-24 05:14:00.776+0000: 11065: warning : qemuDomainObjEnterMonitorInternal:993 : This thread seems to be the async job owner; entering monitor without asking for a nested job is dangerous 2012-11-24 05:14:01.196+0000: 11065: warning : qemuDomainObjEnterMonitorInternal:993 : This thread seems to be the async job owner; entering monitor without asking for a nested job is dangerous 2012-11-24 05:14:01.198+0000: 11065: warning : qemuDomainObjEnterMonitorInternal:993 : This thread seems to be the async job owner; entering monitor without asking for a nested job is dangerous 2012-11-24 05:14:01.208+0000: 11065: warning : qemuDomainObjEnterMonitorInternal:993 : This thread seems to be the async job owner; entering monitor without asking for a nested job is dangerous 2012-11-24 05:14:01.211+0000: 11065: warning : qemuDomainObjEnterMonitorInternal:993 : This thread seems to be the async job owner; entering monitor without asking for a nested job is dangerous I try to use command "virsh migrate vm-01 --live --copy-storage-all --persistent --undefinesource qemu+ssh://host02/system --verbose", the test results have no change, common but not regular. Even after my once successful test, it will certainly fail when I try to make a second migrate with the same VM. How can I solve this problem？ Anything is helpful. Thanks.

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[libvirt-users] how can i get rid of the password for accessing the console in virt-manager ?
by Lentes, Bernd 23 Nov '12

23 Nov '12

Hi, i'm using virt-manager to manage serveral guests on a sles 11 host. For one guest, i configured a password to enter the console via virt-manager (not via VNC). How can i get rid of it ? Thanks in advance. Bernd -- Bernd Lentes Systemadministration Institut für Entwicklungsgenetik Gebäude 35.34 - Raum 208 HelmholtzZentrum münchen bernd.lentes(a)helmholtz-muenchen.de phone: +49 89 3187 1241 fax: +49 89 3187 2294 http://www.helmholtz-muenchen.de/idg Wir sollten nicht den Tod fürchten, sondern das schlechte Leben Helmholtz Zentrum München Deutsches Forschungszentrum für Gesundheit und Umwelt (GmbH) Ingolstädter Landstr. 1 85764 Neuherberg www.helmholtz-muenchen.de Aufsichtsratsvorsitzende: MinDir´in Bärbel Brumme-Bothe Geschäftsführer: Prof. Dr. Günther Wess und Dr. Nikolaus Blum Registergericht: Amtsgericht München HRB 6466 USt-IdNr: DE 129521671

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[libvirt-users] About IBM PowerVM hypervisor support
by Dennis Chen 22 Nov '12

22 Nov '12

Hi, I noticed that libvirt support the following hypervisors currently: * 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 goal of libvirt: *to provide a common and stable layer sufficient to securely manage domains on a node, possibly remote*."/ My question is, does redhat's libvirt team have the plan to support IBM PowerVM hypervisor? If the answer is NO, what's the reason to make the support for IBM PowerVM hypervisor doesn't make sense... BRs, Dennis

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[libvirt-users] add disk problems for domain
by zhijun liu 22 Nov '12

22 Nov '12

hi,all I use Java api `domain.attachDeviceFlags(xml, 0);` to add a disk for domain. the xml file like this: <disk type='file' device='disk'> <driver name='qemu' type='raw'/> <source file='/dev/sp1353486595267/v1353488096262'/> <target dev='vdb' bus='virtio'/> </disk> then I use command `virsh detach-disk $domain vdb` to remove the disk. what I said above have no any errors.but the problem is when I restart this vm ,the disk still exist,because I see it from the command `virsh dumpxml $domain` ,how to remove the disk from this domain persistently. thanks in advance. >zhijun

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[libvirt-users] Virtualbox support - documentation
by Brian Candler 21 Nov '12

21 Nov '12

At http://libvirt.org/drvvbox.html it says: "The libvirt VirtualBox driver can manage any VirtualBox version from version 2.2 onwards" However it looks like 4.2 is yet implemented. Perhaps the page could be updated? Thanks, Brian Candler. P.S. I see work is ongoing in this area: http://www.redhat.com/archives/libvir-list/2012-October/msg00038.html http://www.redhat.com/archives/libvir-list/2012-November/msg00575.html

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[libvirt-users] Disk/volume hot-add question
by Harish Patil 21 Nov '12

21 Nov '12

Hello Why is the disk hot-add operation use PCI hotplug ? Below is the hot plugged device using info pci monitor cmd. > Bus 192, device 10, function 0: > SCSI controller: PCI device 1af4:1001 > IRQ 0. > BAR0: I/O at 0xc400 [0xc43f]. > BAR1: 32 bit memory at 0xf0101000 [0xf0101fff]. > id "mydisk" Could someone pls provide all the steps involved upto the point it appears in the guest kernel? Thx >harish

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[libvirt-users] libvir: Domain Config error : internal error malformed uuid element
by huancong deng 20 Nov '12

20 Nov '12

what about this error ??? thanks a lot . -- personal blog : denghuancong.com facebook: facebook.com/denghuancong twitter : twitter.com/denghuancong

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[libvirt-users] Fwd: unable to ping from guests in virbr0 to guests in virbr1 network
by Marwan Tanager 20 Nov '12

20 Nov '12

---------- Forwarded message ---------- From: mallapadi niranjan <niranjan.ashok(a)gmail.com> Date: Mon, Nov 19, 2012 at 7:30 PM Subject: Re: [libvirt-users] unable to ping from guests in virbr0 to guests in virbr1 network To: Marwan Tanager <marwan.tngr(a)gmail.com> On Mon, Nov 19, 2012 at 7:51 PM, Marwan Tanager <marwan.tngr(a)gmail.com>wrote: > On Mon, Nov 19, 2012 at 12:09:53PM +0530, mallapadi niranjan wrote: > > Hi all, > > > > I have 3 guests (2-RHEL4 and 1 RHEL6) and have some issues regarding > > networking between them. The 2 RHEL4 system's use default bridge virbr0 > and > > get ip's of range 192.168.122.0/24 (192.168.122.207, 192.168.122.167) > > > > I created another bridge (virbr1) with NAT forwarding (no dhcp). The > > network i choose was 192.168.100.0/24. And the third system (RHEL6) was > > assigned static ip-addres 192.168.100.101, > > > > >>From the RHEL6 system which uses virbr1 is able to ping systems in > > 192.168.122.0/24 series , but guest systems in 192.168.122.0/24 are not > > able to ping RHEL6 system (in virbr1) network. > > > > >>From the RHEL4 guests i am able to ping the gateway ip's > (192.168.122.1, > > 192.168.100.1) , but not the RHEL6 system > > > > > > Versions: > > Fedora release 16 (Verne) > > libvirt-0.9.6.3-1.fc16.x86_64 > > qemu-kvm-0.15.1-8.fc16.x86_64 > > > > Any hints on what could be the problem > > The problem is caused by the relative order of the iptables rules for > those two > networks. > > When libvirt created virbr1 for the network 192.168.100.0/24 it inserted a > couple of iptables rules on the FORWARDING chain for this interface, but it > added them before the rules of virbr0 on the same chain. Those rules > basically > are ordered as follows (at least on my system which I suspect is different > from > yours since I also had the same problem): > > 1. Forward packets destined for the interface that are part of an > established > connection. > 2. Forward packets coming from the interface. > 3. Forward packets coming from and destined to the same interface > (loopback). > 4. Reject forwarding anything else to the interface. > 5. Reject forwarding anything else from the interface. > okay that seems to be the behaviour: hain FORWARD (policy ACCEPT) target prot opt source destination ACCEPT all -- 0.0.0.0/0 192.168.100.0/24 state RELATED,ESTABLISHED ACCEPT all -- 192.168.100.0/24 0.0.0.0/0 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable ACCEPT all -- 0.0.0.0/0 192.168.200.0/24 state RELATED,ESTABLISHED ACCEPT all -- 192.168.200.0/24 0.0.0.0/0 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable ACCEPT all -- 0.0.0.0/0 192.168.122.0/24 state RELATED,ESTABLISHED ACCEPT all -- 192.168.122.0/24 0.0.0.0/0 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited I can ping from 192.168.100.0/24 -> 192.168.122.0/24 (but not the viceversa) > > Since those rules are inserted for every interface libvirt adds in this > order, > you can only ping from one interface to another if the set of rules for the > interface you are pinging from comes before that of the one you're pinging > to. > Otherwise, rule number 4 of the destination interface will get in the way > since > iptables matches the packets against the rules in a chain according to > their > order on it. > > A possible workaround: > > iptables-save >/path/to/iptables/dump/file > > then, edit the file to move all relevant rules that REJECT things on the > FORWARDING chain to the end of the chain. > > then put this command in your rc.local script: > > cat /path/to/iptables/dump/file | iptables-restore > > This solution is not reliable though because you will need to update the > file > containing the rules every time you add a new virtual network or update the > iptables rules for some other reason. > Right , > > Also, I hinted before at this problem on the list and someone pointed me > that > it's a bug, but nobody confirmed. Read my message on this topic with the > subject: Inconsistent iptables forwarding rules for virtual networks, to > get a > clearer picture. > > Okay, will look in to that mail > > Marwan >

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[libvirt-users] unable to ping from guests in virbr0 to guests in virbr1 network
by mallapadi niranjan 20 Nov '12

20 Nov '12

Hi all, I have 3 guests (2-RHEL4 and 1 RHEL6) and have some issues regarding networking between them. The 2 RHEL4 system's use default bridge virbr0 and get ip's of range 192.168.122.0/24 (192.168.122.207, 192.168.122.167) I created another bridge (virbr1) with NAT forwarding (no dhcp). The network i choose was 192.168.100.0/24. And the third system (RHEL6) was assigned static ip-addres 192.168.100.101, >From the RHEL6 system which uses virbr1 is able to ping systems in 192.168.122.0/24 series , but guest systems in 192.168.122.0/24 are not able to ping RHEL6 system (in virbr1) network. >From the RHEL4 guests i am able to ping the gateway ip's (192.168.122.1, 192.168.100.1) , but not the RHEL6 system Versions: Fedora release 16 (Verne) libvirt-0.9.6.3-1.fc16.x86_64 qemu-kvm-0.15.1-8.fc16.x86_64 Any hints on what could be the problem Regards Niranjan

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[libvirt-users] how to make the volume's format to qcow2 when creating volume
by zhijun liu 19 Nov '12

19 Nov '12

hi,all the following are files of pool and volume. storage pool is based on logical(LVM) and iscsi,now I create volume specified the format to "qcow2" *pool.xml* <pool type='logical'> <name>pool_190</name> <source> <device path='/dev/disk/by-path/ip-192.168.0.190:3260-iscsi-iqn.2012-11.com.cloudking:server.target1-lun-1'/> </source> <target> <path>/dev/pool_190</path> </target> </pool> *volume.xml* <?xml version="1.0" encoding="UTF-8" ?> <volume> <name>volume1</name> <capacity unit="GB">1</capacity> <target> <format type="qcow2" /> </target> </volume> *the problmes is :when the volume created successfully,However, the volume's format is 'raw'* like this image: /dev/pool_190/volume1 *file format: raw* virtual size: 1.0G (1073741824 bytes) disk size: 0 how to resolve this troublesome. libvirt :0.9.8 os:ubuntu12.04 many thanks for any reply....

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Re: [libvirt-users] Failed to build libvirt-1.0.0-1.fc17.src.rpm on a CentOS 6.3 system
by Abbas 17 Nov '12

17 Nov '12

On 11/17/2012 02:47 AM, Frank Shi wrote: > Thanks much Abbas for your prompt response. Right, I have fixed all the > dependency issues. It compiled but failed during running test cases. I > prefer building from src-rpm is because I need to install the package onto > other machines. Building from src-rpm can generate rpm so it makes > future deploy easier. Then the start off point will be CentOS' srpms. You might still need to do some patchwork and testing before you get a working rpm (a reason why there's no third party repo for latest kvm and libvirt). Installing on multiple machines sounds like you tend towards stability and Fedora's packages won't do that job anyway! > Anyway, follow your recommendation, I downloaded the source tar and tried > to compile it from source. This time I am seeing following problems. What > could be the problem? > > Thanks, Frank > > =============== > $ tar xvf libvirt-1.0.0-rc1.tar.gz > $ libvirt-1.0.0 > $ ./configure Try using the supplied autogen script first. > libxl/libxl_conf.c:471: error: 'libxl_domain_build_info' It's a missing dep error. Quick time-savers for latest KVM and Libvirt (on latest CentOS 6.3): # qemu-kvm deps yum install gcc pkgconfig SDL-devel zlib-devel alsa-lib-devel pciutils-devel gnutls-devel glib glib2-devel ./configure --prefix=/usr --sysconfdir=/etc make && make install # libvirt deps yum install git python-devel libtool patch libxml2 libxml2-devel yajl-devel device-mapper-devel libnl-devel ./autogen-sh --system make && make install # packages to remove qemu-img qemu-kvm libvirt libvirt-client virt-top The kvm_intel manually loaded of course! ------ bassu

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[libvirt-users] Failed to build libvirt-1.0.0-1.fc17.src.rpm on a CentOS 6.3 system
by Frank Shi 17 Nov '12

17 Nov '12

Hi, List, I am seeing following problems when building libvirt-1.0.0-1.fc17.src.rpm. The first failed test case is xml2sexprtest as you can see below. $ sudo rpmbuild -ba SPECS/libvirt.spec + make check TEST: virshtest ........................................ 40 ........... 51 OK TEST: sockettest ...................................... 38 OK TEST: virbuftest .... 4 OK TEST: commandtest ..................... 21 OK TEST: virhashtest .............. 14 OK TEST: virnetmessagetest ..... 5 OK TEST: virnetsockettest ............... 15 OK TEST: viratomictest .. 2 OK TEST: utiltest ... 3 OK TEST: virnettlscontexttest ........................................ 40 ........ 48 OK TEST: shunloadtest . 1 OK TEST: virtimetest ............... 15 OK TEST: viruritest .................. 18 OK TEST: virkeyfiletest . 1 OK TEST: virauthconfigtest ...... 6 OK TEST: virbitmaptest ...... 6 OK TEST: virlockspacetest ....... 7 OK TEST: securityselinuxtest TEST: virdrivermoduletest ....... 7 OK TEST: xml2sexprtest .!.!!.....................!..!!!!.!!!!!! 40 !!!!!!!!!!... 53 FAIL TEST: sexpr2xmltest ........................................ 40 ........... 51 OK TEST: xmconfigtest ..............!.!.!.!.!.!.!.!.!.!.!.!.!. 40 !.!.!.!.!.!.!.!.!...!.!.!. 66 FAIL TEST: xencapstest .......... 10 OK TEST: statstest TEST: reconnect TEST: qemuxml2argvtest ........................................ 40 ........................................ 80 ........................................ 120 ........................................ 160 ........................................ 200 ........................................ 240 ...... 246 OK TEST: qemuxml2xmltest ........................................ 40 ........................................ 80 ................................... 115 OK TEST: qemuxmlnstest ....... 7 OK TEST: qemuargv2xmltest ........................................ 40 ................................... 75 OK TEST: qemuhelptest ................ 16 OK TEST: domainsnapshotxml2xmltest ....... 7 OK TEST: qemumonitortest .. 2 OK TEST: qemumonitorjsontest !!!!! 5 FAIL TEST: esxutilstest .... 4 OK TEST: vmx2xmltest ........................................ 40 .......... 50 OK TEST: xml2vmxtest ........................................ 40 ..... 45 OK TEST: networkxml2xmltest ................ 16 OK TEST: networkxml2argvtest ......... 9 OK TEST: nwfilterxml2xmltest ........................................ 40 . 41 OK TEST: storagevolxml2xmltest ....... 7 OK TEST: storagepoolxml2xmltest ............. 13 OK TEST: nodedevxml2xmltest ............. 13 OK TEST: interfacexml2xmltest ................... 19 OK TEST: cputest ........................................ 40 .......................... 66 OK TEST: eventtest ............... 15 OK TEST: libvirtdconftest ....................................... 39 OK make[1]: *** [check-TESTS] Error 1 make: *** [check-am] Error 2 error: Bad exit status from /var/tmp/rpm-tmp.E2o2Vs (%check) Bad exit status from /var/tmp/rpm-tmp.E2o2Vs (%check) Not sure whether the failures are related to xml. Anyway, following is a list of xml packages installed, python-lxml-2.2.3-1.1.el6.x86_64 xmldb-api-sdk-0.1-0.4.20011111cvs.1.5.el6.noarch xmlto-0.0.23-3.el6.x86_64 xmlrpc-c-1.16.24-1209.1840.el6.x86_64 xml-commons-resolver-1.1-4.18.el6.x86_64 xmlrpc-c-client-1.16.24-1209.1840.el6.x86_64 xmldb-api-0.1-0.4.20011111cvs.1.5.el6.noarch xmlrpc3-client-3.0-4.15.el6.noarch xmlgraphics-commons-1.3.1-1.1.el6.noarch libxml2-devel-2.7.6-4.el6_2.4.x86_64 libxml2-2.7.6-4.el6_2.4.x86_64 xml-common-0.6.3-32.el6.noarch perl-libxml-perl-0.08-10.el6.noarch libxml2-python-2.7.6-4.el6_2.4.x86_64 xml-commons-apis-1.3.04-3.6.el6.x86_64 # cat /proc/version Linux version 2.6.32-279.el6.x86_64 (mockbuild(a)c6b9.bsys.dev.centos.org) (gcc version 4.4.6 20120305 (Red Hat 4.4.6-4) (GCC) ) #1 SMP Fri Jun 22 12:19:21 UTC 2012 Thanks, Frank

2 1

[libvirt-users] authentication failed, but why?
by huancong deng 16 Nov '12

16 Nov '12

I set the me into the group libvirt and write the config for libvirtd: ================================================== listen_tls = 0 listen_tcp = 0 auth_tcp = "none" mdns_adv = 0 unix_sock_group = "libvirt" unix_sock_ro_perms = "0770" unix_sock_rw_perms = "0770" unix_sock_dir = "/var/run/libvirt" log_filters = "1:libvirt 1:util 1:qemu" log_output = "1:file:/var/log/libvirt/libvirtd.log" max_clients = 500 min_workers = 10 max_workers = 50 max_requests = 50 max_client_requests = 8 =========================================== but I can't login the libvirt: [xxxxxx@u70 ~]$ virsh error : authentication failed: Authorization requires authentication but no agent is available. who can tell me why? thanks a lot. :)

1 0

[libvirt-users] Handling connection closes in (older) Sys::Virt
by Henrik Ahlgren 14 Nov '12

14 Nov '12

I hope this is the correct mailing list for discussing the Sys::Virt Perl module. It appears that the most recent version has a new method called register_close_callback that, I believe, can be used to catch errors when the connection to libvirt is closed, e.g. due to libvirt restart or a network related issue. (I've been testing this simply by killing the the SSH process in the libvirt server.) However, Debian still ships libvirt 0.9.12 in stable backports and testing, as probably do many other mainstream distributions. The latest Perl bindings that can be installed from CPAN is thus 0.9.12 and it does not have support for close callbacks. Not only that, when a Perl program loses the (ssh) connection to libvirt, Perl just crashes: Program received signal SIGPIPE, Broken pipe. 0x00007ffff73de0d0 in __write_nocancel () from /lib/libpthread.so.0 Setting a $SIG{PIPE} handler does not seem to help. Is there any possibility of a Perl program surviving and gracefully handling a closed libvirt connection with libvirt version 0.9.12 or older? Henrik

2 4

[libvirt-users] Virt-io Kernels for older RHEL/CentOS versions
by Chandana De Silva 14 Nov '12

14 Nov '12

All, I need to run a number of guests which user older distributions of RHEL and CentOS on an RHEL 6.3 host. The versions are; 4.8 - i386 5.1 - i386 5.2 - x86_64 5.3 - i386 Currently I am running these with the E1000 network driver and the IDE driver. Where can I find kernels (or modules) for virtio for these OS's ? Thanks in advance Chandana

2 2

[libvirt-users] virt-install kickstart local file
by Joe Linoff 14 Nov '12

14 Nov '12

Hi Everybody: I am trying to get virt-install to work with a kickstart file that is on the local file system. I tried using the --initrd-inject="/tmp" --extra-args="ks=file:/myks.cfg" but I got this error message: ERROR --extra-args only work if specified with --location. Here is the basic command: virt-install \ --accelerate \ --cdrom /tools/iso/CentOS-6.3-x86_64-bin-DVD1.iso \ --disk device=disk,path="/var/lib/libvirt/images/myguest.img" \ --graphics vnc \ --name myguest \ --os-type linux \ --os-variant rhel6 \ --ram 2048 \ --vpcus 1,maxvcpus=4 \ --initrd-inject "/tmp" \ --extra-args "ks=file:/myks.cfg" Why do I need the location? I thought that was only used when installatiing from a distribution tree. I am using a DVD ISO image. If I have to use it, how would I specify it? If this approach won't work, I could move the ks.cfg file to an NFS mounted file system but I am not sure what the syntax is for that. I am running this on a CentOS 6.3 system. libvirt: 0.9.10 qemu: 0.12.1 Thank you, Joe

2 1

[libvirt-users] virt-viewer X forwarding through ssh broken since FC17 upgrade?
by Ken Coar 14 Nov '12

14 Nov '12

Ever since I upgraded my laptop from FC15 to FC17, I've been getting this message when I ssh to some RHEL6 hosts inside Red Hat. In particular, I'm trying to do this: virt-viewer --connect \ qemu+ssh://kvm11.devlab.phx1.redhat.com/system \ bork-s01.candlepin.dev.devlab.phx1.redhat.com This is the message I get: X11 forwarding request failed on channel 0 A viewer window pops up for a fraction of a second and then goes away. Using -vvvv on the local ssh command gives a few possibly related messages: debug2: x11_get_proto: /usr/bin/xauth list :0.0 2>/dev/null debug1: Requesting X11 forwarding with authentication spoofing. debug2: channel 0: request x11-req confirm 1 debug1: Requesting authentication agent forwarding. debug2: channel 0: request auth-agent-req(a)openssh.com confirm 0 : debug1: Remote: No xauth program; cannot forward with spoofing. This is new, and, not being an X maven, largely opaque to me. xauth is provided by package xorg-x11-xauth, which is typically *not* installed. Installing it on the system to which I'm trying to ssh gets rid of the message, but doesn't change the up-down behaviour of the viewer window. Temporarily moving my local /usr/bin/xauth leads to this message in addition: Warning: No xauth data; using fake authentication data for X11 forwarding. X11 forwarding request failed on channel 0 Since there's a window popping up at all, I doubt this is directly related to the problem getting the viewer to run. However, on systems *with* xauth installed 'echo $DISPLAY' shows a value, but on those *without* xauth, $DISPLAY is null. (So why am I getting any sort of X popup at all in that case?) Has anyone else seen this, and hopefully have a solution? The problem is actually two-fold: 1. Why 'X11 forwarding failed' and how to get rid of it/revert to behaviour in previous versions; and 2. Why is virt-viewer dying and how to keep it alive. (Again, how to revert to 'it *used* to work' conditions. ;-) ) Thanks! -- #ken B-)} Ken Coar, RHCE, RHCSA, Sanagendamgagwedweinini IT Engineering Tower, Red Hat/RDU "Millennium hand and shrimp!"

2 2

[libvirt-users] difference between ` virsh save ` and `virsh snapshot
by zhijun liu 13 Nov '12

13 Nov '12

what the difference between ` virsh save ` and `virsh snapshot`? are they all used for backup for vm?have any details articles to introduce vm bakcup or image bakcup with libvirt? thanks in advance. liuzhijun

2 1

[libvirt-users] Threads per vCPU and vCPU clock
by Vinicius Gonçalves Braga 13 Nov '12

13 Nov '12

Hi, is there a way to get the number of threads per vCPU and the vCPU clock? Thanks!

2 1

[libvirt-users] the acl mode of files created by libvirtd
by Hao.Zhang 13 Nov '12

13 Nov '12

Hi, all I use virsh save command to dump a domain, the mode is 0600, and belongs to "root", how can i change the mode? Thanks. William -- That night, I thanked God for seeing me thought the day of days and prayed I would make it through tomorrow. I also promised that if some day I could get home again, I would find a nice peaceful town and spend rest of my life in peace.

2 1

[libvirt-users] where is libvirt-python document??
by 宣铭艺 12 Nov '12

12 Nov '12

Hi libvirt users: Who can tell me where is the fucking doc? I want to use libvirt-python in my project.But I can't found the doc. I only found "TBD" in http://libvirt.org/guide/html/Application_Development_Guide-Language_Bindin… Did I miss something? Thanks. -- 樱宝宝: http://www.xuanmingyi.com

3 4

[libvirt-users] the acl mode of files created by libvirtd
by Hao.Zhang 12 Nov '12

12 Nov '12

Hi, all I use virsh save command to dump a domain, the mode is 0600, and belongs to "root", how can i change the mode? William -- That night, I thanked God for seeing me thought the day of days and prayed I would make it through tomorrow. I also promised that if some day I could get home again, I would find a nice peaceful town and spend rest of my life in peace.

1 0

[libvirt-users] [LXC][Openstack] Clarifications needed on usage of libvirt-lxc for openstack
by Sujay M 11 Nov '12

11 Nov '12

Hi everyone, I've some doubts regarding the usage/working of libvirt-lxc with openstack. I'm doing a project titled "Low density virtualization for Storage cloud" 1. Can i use libvirt for lxc with Openstack swift alone (excluding nova, glance and keystone)? If no what other openstack components should i use for virtualization? (Is it necessary to install openstack nova to do virtualization with libvirt-lxc?) 2. How virtualization for storage services work ? Any good articles. 3. I want to set up a cloud storage environment with low density virtualization ie lxc. I'm using Openstack swift (Object storage) for storage services. I want to virtualize this. Few resources on how i can do this using libvirt-lxc? -- Best Regards, Sujay M Final year B.Tech Computer Engineering NITK Surathkal contact: +918971897571

2 1

[libvirt-users] move VM disk images between storage pools on the same host
by Paul Raines 10 Nov '12

10 Nov '12

I created a new LVM type storage pool on my server and would like to move my VM disk volumes in a directory-based pool into this new pool. But I cannot figure out how that is done. I find plenty of information on how to migrate live VM images from one host to another, but not on how to just move one live from one storage pool to another on the same host. If it cannot be done live, how an I do it non-live? I guess non-live I could clone, but that would change the MAC address. Just seems that if libvirt can migrate live it should be able to move a VM between storage pools on the same host even easier. --------------------------------------------------------------- Paul Raines http://help.nmr.mgh.harvard.edu MGH/MIT/HMS Athinoula A. Martinos Center for Biomedical Imaging 149 (2301) 13th Street Charlestown, MA 02129 USA The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.

3 3

[libvirt-users] Updating an "interface" device has no effect on network filters
by Guido Winkelmann 10 Nov '12

10 Nov '12

Hi, I am trying to update the network filters on running guest machines (qemu backend) without having to restart the domain. Say I have a running domain "test" with this interface: <interface type='bridge'> <mac address='52:54:00:84:6d:6d'/> <source bridge='virbr1'/> <model type='virtio'/> <filterref filter='clean-traffic-with-v6'> <parameter name='IP' value='172.18.1.9'/> <parameter name='IPV6' value='fe80::5054:ff:fe84:6d6d'/> <parameter name='MAC' value='52:54:00:84:6d:6d'/> </filterref> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> Now I want that domain to be able to use an additional IP address for some reason, so I write a file uppdevice.xml with this content: <interface type='bridge'> <mac address='52:54:00:84:6d:6d'/> <source bridge='virbr1'/> <model type='virtio'/> <filterref filter='clean-traffic-with-v6'> <parameter name='IP' value='172.18.1.9'/> <parameter name='IP' value='172.18.1.10'/> <parameter name='IPV6' value='fe80::5054:ff:fe84:6d6d'/> <parameter name='MAC' value='52:54:00:84:6d:6d'/> </filterref> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> and run update-device test-cpu-restrict2 upddevice.xml in virsh. This appears to work without problems and produces no error messages (it prints "Device updated successfully"), except the ebtables script on the host machine does not get updated after that and consequently, the new IP address is not usable. Regards, Guido

1 0

[libvirt-users] Failed to access console after launching LXC through libvirt
by unicell 10 Nov '12

10 Nov '12

Hi, I'm trying to manage LXC instances through OpenStack, which use libvirt as a virtualization driver layer. After launching LXC instance, I simply could not attach to the console. virsh # list Id Name State ---------------------------------- 14366 instance-00000078 running virsh # console 14366 Connected to domain instance-00000078 Escape character is ^] And it keeps stuck here. Initially I thought it could be a cgroup device config issue, and tried to "echo ‘c 5:1 rwm' >/cgroup/devices/libvirt/lxc/instance-00000078/devices.allow“, to add /dev/console access right to the container. But it does not work, console stilll not working. Before the cgroup tweaking, devices.list are as follows [root@localhost libvirt]# cat /cgroup/devices/libvirt/lxc/instance-0000007a/devices.list c 1:3 rwm c 1:5 rwm c 1:7 rwm c 1:8 rwm c 1:9 rwm c 5:0 rwm c 5:2 rwm c 136:* rwm I'm not quite sure what kind of issue could possibly cause this console access issue. Cause I'm now using two different guest OS templates on two different host OSes. Following are some symptoms I observed. * (g) for container guest OS * (h) for host OS * NOTE: Ubuntu guest os are generated by lxc-create -t ubuntu, which is an Ubuntu 12.04 based lxc template. CentOS guest os are handcrafted by myself, taking reference of http://wiki.1tux.org/wiki/Lxc/Installation/Guest/Centos/6 1. Ubuntu (g) launched by lxc-start on Ubuntu 12.04 host, console works 2. Ubuntu (g) launched by OpenStack / libvirt on Ubuntu 12.04 host, console works 3. Ubuntu (g) launched by OpenStack / libvirt on CentOS 6.3 host, console NOT works 4. CentOS (g) launched by lxc-start on Ubuntu 12.04 host, console works 5. CentOS (g) launched by OpenStack / libvirt on Ubuntu12.04 host, console NOT works 6. CentOS (g) launched by OpenStack / libvirt on CentOS 6.3 host, console NOT works So somehow I feel it could be something related to LXC template rootfs, but Host OS do make a difference (2 vs. 3). lxc-start / libvirt also makes a difference (4 vs. 5), but that might be caused by cgroup setting. Could someone shed me some clues to further digging this issue? Thanks! -- Qiu Yu

3 8

[libvirt-users] A warning about "async message processing ."
by xuanmao_001 09 Nov '12

09 Nov '12

Hi, all: when I used virsh connect host like "virsh connect qemu+tcp://root@ip_address/system", I had a warning message about "warning: virNetClientIncomingEvent: 1660 : Something went wrong during async message processing" But I can even operated. Is there a reason can cause the warning? thanks. xuanmao_001

1 1

[libvirt-users] OpenStack+libvirt+lxc: lxcContainerGetSubtree:1199 : Failed to read /proc/mounts
by unicell 09 Nov '12

09 Nov '12

Hi, I'm running OpenStack on CentOS 6.3 to manage lxc instances. And running into series of problem relating libvirt and lxc interaction. For example, libvirt_lxc segfault ( https://bugzilla.redhat.com/show_bug.cgi?id=874549) which has an upstream fix. And another bugs such as fail to start when SELinux disabled. Finally, I decides to adopt libvirt 0.10.2, self compiled from libvirt-0.10.2-1.fc17.src.rpm. And now coming across following message when starting lxc container. lxcContainerGetSubtree:1199 : Failed to read /proc/mounts: No such file or directory Could it be something related to my container template setting? Or host setting? Or simply just another bug? I'm not a libvirt guy, so please, do shed me some lights on how to fix it. Thanks very much. libvirtd log with LIBVIRT_DEBUG=1 -- 2012-11-08 12:41:10.106+0000: 28362: info : libvirt version: 0.10.2, package: 1.el6 (Unknown, 2012-11-08-20:20:52, localhost) 2012-11-08 12:41:10.106+0000: 28362: error : virLXCControllerRun:1418 : error receiving signal from container: Input/output error 2012-11-08 12:41:10.222+0000: 24641: error : virNetDevSetOnline:536 : Cannot get interface flags on 'veth0': No such device 2012-11-08 12:41:10.227+0000: 24641: error : virNWFilterDHCPSnoopEnd:2131 : internal error ifname "veth0" not in key map 2012-11-08 12:41:10.229+0000: 24641: error : virNetDevGetIndex:653 : Unable to get index for interface veth0: No such device 2012-11-08 12:41:10.370+0000: 24640: error : virLXCProcessStop:701 : internal error Invalid PID -1 for container 2012-11-08 12:41:10.370+0000: 24640: error : virLXCProcessStop:701 : internal error Invalid PID -1 for container 2012-11-08 12:48:26.136+0000: 30706: info : libvirt version: 0.10.2, package: 1.el6 (Unknown, 2012-11-08-20:20:52, localhost) 2012-11-08 12:48:26.136+0000: 30706: error : virDomainObjParseNode:10094 : XML error: unexpected root element <domain>, expecting <domstatus> 2012-11-08 12:48:50.878+0000: 30695: error : virNetSocketReadWire:1176 : Cannot recv data: Connection reset by peer 2012-11-08 12:48:50.977+0000: 30698: error : virLXCProcessStart:1145 : internal error guest failed to start: PATH=/bin:/sbin TERM=linux container=lxc-libvirt container_uuid=ecc871cb-58be-4ae4-b216-a8a62b894a7f LIBVIRT_LXC_UUID=ecc871cb-58be-4ae4-b216-a8a62b894a7f LIBVIRT_LXC_NAME=instance-00000077 LIBVIRT_LXC_CMDLINE=console=ttyS0 /sbin/init 2012-11-08 12:48:50.863+0000: 1: info : libvirt version: 0.10.2, package: 1.el6 (Unknown, 2012-11-08-20:20:52, localhost) 2012-11-08 12:48:50.863+0000: 1: error : lxcContainerGetSubtree:1199 : Failed to read /proc/mounts: No such file or directory 2012-11-08 12:48:50.863+0000: 31202: info : libvirt version: 0.10.2, package: 1.el6 (Unknown, 2012-11-08-20:20:52, localhost) 2012-11-08 12:48:50.863+0000: 31202: error : virLXCControllerRun:1418 : error receiving signal from container: Input/output error 2012-11-08 12:48:50.979+0000: 30698: error : virNetDevSetOnline:536 : Cannot get interface flags on 'veth0': No such device 2012-11-08 12:48:50.984+0000: 30698: error : virNWFilterDHCPSnoopEnd:2131 : internal error ifname "veth0" not in key map 2012-11-08 12:48:50.986+0000: 30698: error : virNetDevGetIndex:653 : Unable to get index for interface veth0: No such device 2012-11-08 12:48:51.127+0000: 30695: error : virLXCProcessStop:701 : internal error Invalid PID -1 for container 2012-11-08 12:48:51.128+0000: 30695: error : virLXCProcessStop:701 : internal error Invalid PID -1 for container 2012-11-08 12:48:54.709+0000: 30695: error : virNetSocketReadWire:1184 : End of file while reading data: Input/output error 2012-11-08 12:48:54.710+0000: 30695: error : virNetSocketReadWire:1184 : End of file while reading data: Input/output error lxc log -- tail -f lxc/instance-00000077.log 2012-11-08 12:48:50.723+0000: starting up PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin LIBVIRT_DEBUG=3 LIBVIRT_LOG_OUTPUTS=3:stderr /usr/libexec/libvirt_lxc --name instance-00000077 --console 21 --security=none --handshake 24 --background --veth veth1 PATH=/bin:/sbin TERM=linux container=lxc-libvirt container_uuid=ecc871cb-58be-4ae4-b216-a8a62b894a7f LIBVIRT_LXC_UUID=ecc871cb-58be-4ae4-b216-a8a62b894a7f LIBVIRT_LXC_NAME=instance-00000077 LIBVIRT_LXC_CMDLINE=console=ttyS0 /sbin/init 2012-11-08 12:48:50.863+0000: 1: info : libvirt version: 0.10.2, package: 1.el6 (Unknown, 2012-11-08-20:20:52, localhost) 2012-11-08 12:48:50.863+0000: 1: error : lxcContainerGetSubtree:1199 : Failed to read /proc/mounts: No such file or directory 2012-11-08 12:48:50.863+0000: 31202: info : libvirt version: 0.10.2, package: 1.el6 (Unknown, 2012-11-08-20:20:52, localhost) 2012-11-08 12:48:50.863+0000: 31202: error : virLXCControllerRun:1418 : error receiving signal from container: Input/output error libvirt xml -- <domain type='lxc'> <name>instance-00000077</name> <uuid>ecc871cb-58be-4ae4-b216-a8a62b894a7f</uuid> <memory unit='KiB'>524288</memory> <currentMemory unit='KiB'>524288</currentMemory> <vcpu placement='static'>2</vcpu> <os> <type arch='x86_64'>exe</type> <init>/sbin/init</init> <cmdline>console=ttyS0</cmdline> </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='/home/stack/nova_state/instances/instance-00000077/rootfs'/> <target dir='/'/> </filesystem> <interface type='bridge'> <mac address='fa:16:3e:40:ec:11'/> <source bridge='br100'/> <filterref filter='nova-instance-instance-00000077-fa163e40ec11'> <parameter name='DHCPSERVER' value='10.48.253.1'/> <parameter name='IP' value='10.48.253.2'/> <parameter name='PROJMASK' value='255.255.255.0'/> <parameter name='PROJNET' value='10.48.253.0'/> </filterref> </interface> <console type='pty'> <target type='lxc' port='0'/> </console> </devices> </domain> cat /proc/mounts -- [root@localhost libvirt]# cat /proc/mounts rootfs / rootfs rw 0 0 proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0 sysfs /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0 devtmpfs /dev devtmpfs rw,nosuid,relatime,size=32967000k,nr_inodes=8241750,mode=755 0 0 devpts /dev/pts devpts rw,relatime,gid=5,mode=620,ptmxmode=000 0 0 tmpfs /dev/shm tmpfs rw,nosuid,nodev,relatime 0 0 /dev/sda2 / ext4 rw,relatime,barrier=1,data=ordered 0 0 /proc/bus/usb /proc/bus/usb usbfs rw,relatime 0 0 /dev/mapper/xenvg-home /home ext4 rw,relatime,barrier=1,data=ordered 0 0 none /proc/sys/fs/binfmt_misc binfmt_misc rw,relatime 0 0 sunrpc /var/lib/nfs/rpc_pipefs rpc_pipefs rw,relatime 0 0 none /noah/tmp tmpfs rw,relatime,mode=755 0 0 cgroup /cgroup/cpuset cgroup rw,relatime,cpuset 0 0 cgroup /cgroup/cpu cgroup rw,relatime,cpu 0 0 cgroup /cgroup/cpuacct cgroup rw,relatime,cpuacct 0 0 cgroup /cgroup/memory cgroup rw,relatime,memory 0 0 cgroup /cgroup/devices cgroup rw,relatime,devices 0 0 cgroup /cgroup/freezer cgroup rw,relatime,freezer 0 0 cgroup /cgroup/net_cls cgroup rw,relatime,net_cls 0 0 cgroup /cgroup/blk_io cgroup rw,relatime,blkio 0 0 cgroup /cgroup/ns cgroup rw,relatime,ns 0 0 /dev/nbd15 /home/stack/nova_state/instances/instance-00000070/rootfs ext3 rw,relatime,errors=continue,user_xattr,acl,barrier=1,data=ordered 0 0 /dev/nbd14 /home/stack/nova_state/instances/instance-00000071/rootfs ext3 rw,relatime,errors=continue,user_xattr,acl,barrier=1,data=ordered 0 0 /dev/nbd13 /home/stack/nova_state/instances/instance-00000073/rootfs ext3 rw,relatime,errors=continue,user_xattr,acl,barrier=1,data=ordered 0 0 /dev/nbd12 /home/stack/nova_state/instances/instance-00000075/rootfs ext3 rw,relatime,errors=continue,user_xattr,acl,barrier=1,data=ordered 0 0 /dev/nbd11 /home/stack/nova_state/instances/instance-00000076/rootfs ext3 rw,relatime,errors=continue,barrier=1,data=ordered 0 0 /dev/nbd10 /home/stack/nova_state/instances/instance-00000077/rootfs ext3 rw,relatime,errors=continue,user_xattr,acl,barrier=1,data=ordered 0 0 -- Qiu Yu

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[libvirt-users] Problems when filtering on icmpv6
by Guido Winkelmann 08 Nov '12

08 Nov '12

Hi, I am trying to prevent my qemu guest machines from sending IPv6 router advertisements over their network device. To that end, I have written this filter definition: <filter name='no-ipv6-router-advertisement' chain='root' priority='-690'> <rule action='drop' direction='out' priority='600'> <icmpv6 type='134'/> </rule> <rule action='drop' direction='out' priority='600'> <icmpv6 type='153'/> </rule> </filter> As soon as I try to use this filter, though, I get the following error (in virsh): error: Error while building firewall: Some rules could not be created for interface vnet0: Failure to execute command '$IPT -A libvirt-out -m physdev -- physdev-out vnet0 -g FP-vnet0' : 'ip6tables: No chain/target/match by that name.'. I am (trying to) use this filter by including it in here: <filter name='clean-traffic-with-v6' chain='root'> <filterref filter='no-mac-spoofing'/> <filterref filter='no-ip-spoofing'/> <filterref filter='no-dhcp-server'/> <rule action='accept' direction='out' priority='-650'> <mac protocolid='ipv4'/> </rule> <filterref filter='allow-incoming-ipv4'/> <filterref filter='no-ipv6-spoofing'/> <filterref filter='no-ipv6-router-advertisement'/> <filterref filter='no-dhcpv6-server'/> <rule action='accept' direction='out' priority='-600'> <mac protocolid='ipv6'/> </rule> <filterref filter='allow-incoming-ipv6'/> <filterref filter='no-arp-spoofing'/> <rule action='accept' direction='inout' priority='-500'> <mac protocolid='arp'/> </rule> <filterref filter='no-other-l2-traffic'/> <filterref filter='qemu-announce-self'/> </filter> Without the line <filterref filter='no-ipv6-router-advertisement'/> this filter works fine. When running a domain with this filter without the no-ipv6-router- advertisement filterref, my ip6tables look like this: # ip6tables-save # Generated by ip6tables-save v1.4.13 on Wed Nov 7 17:46:32 2012 *mangle :PREROUTING ACCEPT [146:12680] :INPUT ACCEPT [103:9704] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [172:14184] :POSTROUTING ACCEPT [172:14184] COMMIT # Completed on Wed Nov 7 17:46:32 2012 # Generated by ip6tables-save v1.4.13 on Wed Nov 7 17:46:32 2012 *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] :libvirt-host-in - [0:0] :libvirt-in - [0:0] :libvirt-in-post - [0:0] :libvirt-out - [0:0] -A INPUT -j libvirt-host-in -A FORWARD -j libvirt-in -A FORWARD -j libvirt-out -A FORWARD -j libvirt-in-post COMMIT # Completed on Wed Nov 7 17:46:32 2012 This is with libvirt 0.10.2. Does anybody have an idea what is happening here or how I could debug this further? Regards, Guido

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[libvirt-users] libvirt with lxc: internal error The 'cpuacct', 'devices' & 'memory' cgroups controllers must be mounted
by unicell 08 Nov '12

08 Nov '12

Hi, I'm running OpenStack to manage LXC instance through libvirt. The same setting runs perfectly well on Ubuntu 12.04, while on CentOS 6u3, libvirt dumped following message when starting lxc instance. virsh -c lxc:/// start instance-00000032 error: internal error The 'cpuacct', 'devices' & 'memory' cgroups controllers must be mounted Really appreciated if someone could shed some lights. Seems to some libvirt / cgroup settings related. $ cat /proc/mounts .. none /cgroup cgroup rw,relatime,net_prio,perf_event,blkio,net_cls,freezer,devices,memory,cpuacct,cpu,ns,cpuset 0 0 .. $ chkconfig --list | grep cg cgconfig 0:off 1:off 2:off 3:off 4:off 5:off 6:off cgred 0:off 1:off 2:off 3:off 4:off 5:off 6:off xml definition -- <domain type="lxc"> <uuid>252a2dc5-452c-4e9c-a593-8c386c9f47e6</uuid> <name>instance-00000032</name> <memory>524288</memory> <vcpu>2</vcpu> <os> <type>exe</type> <cmdline>console=ttyS0</cmdline> <init>/sbin/init</init> </os> <clock offset="utc"/> <devices> <filesystem type="mount"> <source dir="/home/stack/nova_state/instances/instance-00000032/rootfs"/> <target dir="/"/> </filesystem> <interface type="bridge"> <mac address="fa:16:3e:73:67:54"/> <source bridge="br100"/> <filterref filter="nova-instance-instance-00000032-fa163e736754"> <parameter name="IP" value="10.0.0.8"/> <parameter name="DHCPSERVER" value="10.0.0.1"/> <parameter name="PROJNET" value="10.0.0.0"/> <parameter name="PROJMASK" value="255.255.255.0"/> </filterref> </interface> <console type="pty"/> </devices> </domain> Log message with LIBVIRT_DEBUG=1 if that is helpful. http://pastebin.com/LjZ6Euma -- Qiu Yu

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[libvirt-users] help filtering spam
by Joe Linoff 07 Nov '12

07 Nov '12

Hi Folks: I am now receiving spam email every few minutes as result of signing up for this mailing list and it is starting to become a challenge. Has anyone had any success filtering it? Regards, Joe

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[libvirt-users] No driver found during virt-install / kickstart
by Joe Linoff 07 Nov '12

07 Nov '12

Hi Folks: I am getting a "No driver found" dialogue when I try to build a guest using virt-install using a kickstart file. I am stuck. I am not sure how to fix or even debug this problem. Can anyone suggest a way forward? Here are the commands that I am using: $ # ================================================================ $ # Create the volume $ # ================================================================ virsh vol-create default /tools/vm/guests/guest1-vol.xml $ # ================================================================ $ # Create a mount for the virt-install --location option. $ # ================================================================ mkdir /opt/mnt mount -o loop,ro /tools/iso/CentOS-6.3-x86_64-bin-DVD1.iso /opt/mnt $ # ================================================================ $ # Create the kickstart file (used system-config-kickstart). $ # ================================================================ $ cat /export/tools/vm/guests/guest1-ks.cfg #platform=x86, AMD64, or Intel EM64T #version=DEVEL # Firewall configuration firewall --enabled --http --ssh # Install OS instead of upgrade install # Use CDROM installation media cdrom # Root password rootpw --iscrypted $1$DAzH1SN3$6yzxoq6oRrXNw.qMkJU0H1 # System authorization information auth --useshadow --passalgo=sha512 # Use graphical install graphical firstboot --disable # System keyboard keyboard us # System language lang en_US # SELinux configuration selinux --enforcing # Installation logging level logging --level=debug # System timezone timezone America/Los_Angeles # Network information network --bootproto=static --device=eth0 --gateway=192.168.2.1 --ip=192.168.2.68 --nameserver=192.168.2.71 --netmask=255.255.255.0 --onboot=on # System bootloader configuration bootloader --location=mbr # Clear the Master Boot Record zerombr # Partition clearing information clearpart --all %packages @base @client-mgmt-tools @compat-libraries @console-internet @emacs @hardware-monitoring @network-file-system-client @network-tools @performance @postgresql @security-tools @system-admin-tools @virtualization-client %end EOF $ # ================================================================ $ # Run virt-install $ # ================================================================ virt-install \ --accelerate \ --location "/opt/mnt" \ --disk device=disk,path="/var/lib/libvirt/images/guest1.img" \ --graphics vnc \ --name "guest1" \ --os-type linux \ --os-variant rhel6 \ --ram 2048 \ --vcpus 2,maxvcpus=2 \ -v \ -w bridge:br0 \ -x 'ks=nfs:192.168.2.140:/export/tools/vm/guests/guest1-ks.cfg ksdevice=eth0 ip=192.168.2.82 netmask=255.255.255.0 dns=192.168.2.71,8.8.8.8 gateway=192.168.2.1' Regards, Joe

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[libvirt-users] Failed to bind socket to '/var/run/libvirt/libvirt-sock': Permission denied
by 何鑫 06 Nov '12

06 Nov '12

Hi all, When I start self-built libvirtd by "libvirtd -d -l -f libvirtd.conf", it shows that error : virNetSocketNewListenUNIX:346 : Failed to bind socket to '/var/run/libvirt/libvirt-sock': Permission denied I have removed some requested comments in libvirtd.conf. The key settings are shown as below: listen_tcp = 1 tcp_port = "16509" listen_addr = "0.0.0.0" unix_sock_group = "root" unix_sock_rw_perms = "0770" unix_sock_ro_perms = "0777" unix_sock_dir = "/var/run/libvirt" Is there any thing wrong? Need I start libvirtd by root? Thanks a lot! Best Regards!Corey

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[libvirt-users] can not create "qcow2" format volume by Java library.
by zhijun liu 06 Nov '12

06 Nov '12

hi，all, when I use Java library to create volume ,specified format "qcow2"，but when I check it use qemu-img info ,it show format is "raw".。 I think it a bug,can you fix it .. thanks very much. the java library version：0.4.8 libvirt version：0.9.8

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[libvirt-users] re-create disk image file
by Joe Linoff 06 Nov '12

06 Nov '12

Hi Everybody: I am curious about how to re-create a disk image file from a running guest when the original disk image file is accidentally deleted. This came up recently during a test scenario but I couldn't figure out how to do it. Thanks, Joe

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[libvirt-users] is this mailing list active? i am seeing low activity and am receiving spam
by Joe Linoff 06 Nov '12

06 Nov '12

Hi Folks: Is this mailing list active? It seems to have pretty low activity and I have received several spam messages since signing up. Regards, Joe

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[libvirt-users] CPU Mode= Host passthrough
by Michael Beham 06 Nov '12

06 Nov '12

Hi, I´m doing some research on Nested Virtualization with KVM and Xen. My cpu on bare-metal system is a Opteron_G4 --> (AMD Opteron 4280). qemu-version 1.0; libvirt 0.9.12 For nesting KVM in KVM I´m adding the <cpu mode='host-passthrough'/> command to the XML-File of the VM on Layer 0. So I´m able to install KVM in KVM and create nested guests at Layer 2. L2 --> Nested VM L1 --> KVM / XEN L0 --> KVM If i try the same with installing Xen in the VM on Layer 1 Xen don´t boot and I get following error: Panic on CPU 0: GENERAL PROTECTION FAULT [error_code=0000] If I remove <cpu mode='host-passthrough'/> command from the VM´s XML Xen boot is successful and Nesting Xen in KVM works! May this problem depends on the following problem --> https://bugzilla.redhat.com/show_bug.cgi?id=804224

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[libvirt-users] virsh vol-create-as failing on NFS automount for chmod (dynamic_ownership = 0)
by Joe Linoff 05 Nov '12

05 Nov '12

Hi Everyone: I am trying to create a volume using the vol-create-as command but it fails with an "Operation not permitted" error. It appears to be caused by an attempt to run chown on an NFS mounted file system but I have set dynamic_ownership to 0 in /etc/qemu.conf. Is it possible to disable the chown operation? If not, is there a guide that describes how to create storage pools on NFS filers? I have read http://libvirt.org/storage.html but there was no discussion of to work around this problem. Any help would be greatly appreciated. Here is the command and error message: $ virsh vol-create-as default webtst 10G error: Failed to create vol webtst error: cannot create path '/var/lib/libvirt/images/webtst': Operation not permitted The /var/lib/libvirt/images is linked to a common filer: /shared/vm/images. The permissions on the directory are 0777. When I looked at tail /var/log/libvirt/libvirtd.log it showed that the problem was occurring because a chown command: 2012-11-05 02:55:44.841+0000: 26384: info : libvirt version: 0.9.10, package: 21.el6_3.5 (CentOS BuildSystem <http://bugs.centos.org>, 2012-10-11-13:57:12, c6b9.bsys.dev.centos.org) 2012-11-05 02:55:44.841+0000: 26384: error : virFileOpenForceOwnerMode:796 : cannot chown '/var/lib/libvirt/images/webtst' to (0, 0): Operation not permitted 2012-11-05 02:55:44.841+0000: 26384: error : virStorageBackendCreateRaw:401 : cannot create path '/var/lib/libvirt/images/webtst': Operation not permitted Regards, Joe

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[libvirt-users] error: Unable to add port vnet1 to OVS bridge ovsbr: Operation not permitted
by Radhika Niranjan 03 Nov '12

03 Nov '12

Hi, > > I am using libvirt version 0.9.13 with Ubuntu 12.10 > > When I try to start a VM with an openvswitch bridge interface I get the > error: > > error: Failed to start domain kvm113-2 > error: Unable to add port vnet1 to OVS bridge ovsbr: Operation not > permitted > > > Here is my bridge configuration: > <interface type='bridge'> > <mac address='52:54:00:c7:db:d2'/> > <source bridge='ovsbr'/> > <virtualport type='openvswitch'> > <parameters interfaceid='40e21558-217c-d8ef-c9a9-5275fa4b4a46'/> > </virtualport> > <model type='virtio'/> > <address type='pci' domain='0x0000' bus='0x00' slot='0x05' > function='0x0'/> > </interface> > > > This configuration previously worked fine. > > Request your help and insights. > > WIth best regards > Radhika >

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[libvirt-users] hotplug
by Douglas Russell 03 Nov '12

03 Nov '12

Another separate thread for a slightly separate issue. For some reason, hotplugging disks does not work for me. I built my guest with ubuntu's vmbuilder. It's Precise, virtual. I have acpiphp in my /etc/modules file: $ lsmod Module Size Used by psmouse 97443 0 serio_raw 13211 0 virtio_balloon 13108 0 acpiphp 24231 0 floppy 70365 0 hotplug_pci seems to be compiled into the kernel: $ grep HOTPLUG_PCI /boot/config-3.2.0-32-virtual CONFIG_HOTPLUG_PCI_PCIE=y CONFIG_HOTPLUG_PCI=y CONFIG_HOTPLUG_PCI_FAKE=m CONFIG_HOTPLUG_PCI_ACPI=m CONFIG_HOTPLUG_PCI_ACPI_IBM=m CONFIG_HOTPLUG_PCI_CPCI=y CONFIG_HOTPLUG_PCI_CPCI_ZT5550=m CONFIG_HOTPLUG_PCI_CPCI_GENERIC=m CONFIG_HOTPLUG_PCI_SHPC=m But when I attach a disk, absolutely nothing happens in the guest. No messages in the logs, no change to /proc/partitions, no new device nodes. When I reboot, the disk appears. Any ideas? Thanks, Douglas

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