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[libvirt-users] Will over-allocation of vCPUs be counterproductive to VM Win7 Ultimate?
by Allen Qiu 28 Oct '14

28 Oct '14

Hi all, Will over-allocation of vCPUs be counterproductive to VM Win7 Ultimate? I allocated 32 (out of 64 physical cores in 8 NUMA cells, and 128G out of 2T physical RAM) to the VM. But the boot process was extremly slow, actually the desktop screen never showed up then the VM just reboot automatically. So is there anything I can do to solve this problem or the truth is Win7 by design just cannot handle that mount of CPUs even with Win7 Ultimate? Regards, Allen 2014-10-28 Allen Qiu

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[libvirt-users] an error caused by lxc-enter-namespace command
by WANG Cheng D 28 Oct '14

28 Oct '14

Dear all, On my last post "Why a "core dump" error occurs when a thread exits in container but it's correct when running in native linux" might be misleading. I did further test and the steps are described below. 1) First, the container is started (we have the first terminal window) 2) Use virsh lxc-enter-namespace command to open another terminal (we have the second terminal) 3) Execute "exit" in the first terminal to quit container 4) Then an error is reported by the second terminal "internal error; child process (XXX) unexpected fatal signal 9" and the terminal is frozen then. How I solved this problems? Best regards, Cheng

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[libvirt-users] Why a "core dump" error occurs when a thread exits in container but it's correct when running in native linux
by WANG Cheng D 28 Oct '14

28 Oct '14

Dear all, When I run my application in a container, sometimes the thread can exit correctly, sometime a "core dump" error occurs when it exits. But the application always exits correctly when it runs in a native fedora. Malloc() and free() functions are used in my application. I wonder if this is the reason for the core dump error. Is the thread exit event treated differently by the container and native OS? Or if I need to tune some options for memory in container's XML configuration file? Best wishes, Cheng

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[libvirt-users] What is the difference between running "virt-manager" and "sudo virt-manager"?
by Allen Qiu 28 Oct '14

28 Oct '14

Hi all, What is the difference between starting virt-manager by "virt-manager" and by "sudo virt-manager"? It seems that there are two copy of virt-manager running in the background. When I run "virt-manager", I got a error of "Unable to open a connection to the libvirt management daemon. Libvirt URI is: qemu:///system Verify that: - The 'libvirtd' daemon has been started". Whereas when I run "sudo virt-manager", I got a error of "Error starting Virtual Machine Manager: Failed to contact configuration server; some possible causes are that you need to enable TCP/IP networking for ORBit, or you have stale NFS locks due to a system crash. See http://projects.gnome.org/gconf/ for information." How should I deal with the two issues respectively? Is there any drawback by simply running "virt-manager"? Regards, Allen 2014-10-27 Allen Qiu

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Re: [libvirt-users] (no subject)
by Eric Blake 27 Oct '14

27 Oct '14

On 12/31/1969 05:00 PM, wrote: > Hi all, [your 800k .bmp file prevented your message from getting through the mailing list filter, which caps mail around 100k for a reason. Please, just describe your problem in plain text, or if you MUST point people to a screenshot, have your email simply contain a URL to a dropbox containing the screenshot, rather than sending it directly to the list. Also, .bmp is a lousy format; .png sends just as much information in a much smaller file size] > It seems no matter how many vCPU I allocated to the VM, the auto-generated vCPU pinning configuration won't cover more than 8 CPUs. Is that normal? Otherwise what should I do? Will vCPU pinning by virsh be more effective? virt-manager tries to be a gui wrapper around the same API as you can access directly via virsh; but sometimes virt-manager lags behind. Try doing it directly with virsh, to see if what you are attempting is even supported by libvirt and is just waiting on virt-manager to catch up. > Regards, > Allen > > > 2014-10-28 > > > > Allen Qiu > -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org

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[libvirt-users] How could the admin do to grant me with permission to run virsh as unprivileged user?
by Allen Qiu 27 Oct '14

27 Oct '14

Thank you! How could the admin do to grant me with permission to run virsh as unprivileged user? Also by configurating libvirtd.conf, unix_sock_group? 2014-10-28 Allen Qiu 发件人：libvirt-users-request(a)redhat.com 发送时间：2014-10-28 00:00 主题：libvirt-users Digest, Vol 58, Issue 33 收件人："libvirt-users"<libvirt-users(a)redhat.com> 抄送： Send libvirt-users mailing list submissions to libvirt-users(a)redhat.com To subscribe or unsubscribe via the World Wide Web, visit https://www.redhat.com/mailman/listinfo/libvirt-users or, via email, send a message with subject or body 'help' to libvirt-users-request(a)redhat.com You can reach the person managing the list at libvirt-users-owner(a)redhat.com When replying, please edit your Subject line so it is more specific than "Re: Contents of libvirt-users digest..." Today's Topics: 1. Error starting Virtual Machine Manager: Failed to contact configuration server... (Allen Qiu) 2. What is the difference between running "virt-manager" and "sudo virt-manager"? (Allen Qiu) 3. Re: What is the difference between running "virt-manager" and "sudo virt-manager"? (Sven Schwedas) ---------------------------------------------------------------------- Message: 1 Date: Mon, 27 Oct 2014 16:14:22 +0800 From: "Allen Qiu"<my1stbox(a)163.com> To: "libvirt-users(a)redhat.com"<libvirt-users(a)redhat.com> Cc: ??? <chengwu.wang(a)net263.com>, 'Bin Liu' <binliu_gh(a)yahoo.com> Subject: [libvirt-users] Error starting Virtual Machine Manager: Failed to contact configuration server... Message-ID: <5a1daafa.4851.14950ab9ff5.Coremail.my1stbox(a)163.com> Content-Type: text/plain; charset="utf-8" Hi all! Do you have any idea about the following error message from virt-manager. I was trying to start it with "sudo virt-manager". Do you think I can fix this by simply restarting libvirtd? Regards, Allen Error starting Virtual Machine Manager: Failed to contact configuration server; some possible causes are that you need to enable TCP/IP networking for ORBit, or you have stale NFS locks due to a system crash. See http://projects.gnome.org/gconf/ for information. (Details - 1: Could not send message to GConf daemon: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.) Traceback (most recent call last): File "/usr/share/virt-manager/virt-manager.py", line 383, in <module> main() File "/usr/share/virt-manager/virt-manager.py", line 315, in main config = virtManager.config.vmmConfig(appname, appversion, glade_dir) File "/usr/share/virt-manager/virtManager/config.py", line 98, in __init__ self.conf.add_dir(self.conf_dir, gconf.CLIENT_PRELOAD_NONE) GError: Failed to contact configuration server; some possible causes are that you need to enable TCP/IP networking for ORBit, or you have stale NFS locks due to a system crash. See http://projects.gnome.org/gconf/ for information. (Details - 1: Could not send message to GConf daemon: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.) 2014-10-27 Allen Qiu -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://www.redhat.com/archives/libvirt-users/attachments/20141027/2e37a157…> ------------------------------ Message: 2 Date: Mon, 27 Oct 2014 16:31:17 +0800 From: "Allen Qiu"<my1stbox(a)163.com> To: "libvirt-users(a)redhat.com"<libvirt-users(a)redhat.com> Cc: ??? <chengwu.wang(a)net263.com>, "zoubinbin100(a)163.com" <zoubinbin100(a)163.com>, 'Bin Liu' <binliu_gh(a)yahoo.com> Subject: [libvirt-users] What is the difference between running "virt-manager" and "sudo virt-manager"? Message-ID: <6b47a489.4b48.14950bb1af4.Coremail.my1stbox(a)163.com> Content-Type: text/plain; charset="utf-8" Hi all, What is the difference between starting virt-manager by "virt-manager" and by "sudo virt-manager"? It seems that there are two copy of virt-manager running in the background. When I run "virt-manager", I got a error of "Unable to open a connection to the libvirt management daemon. Libvirt URI is: qemu:///system Verify that: - The 'libvirtd' daemon has been started". Whereas when I run "sudo virt-manager", I got a error of "Error starting Virtual Machine Manager: Failed to contact configuration server; some possible causes are that you need to enable TCP/IP networking for ORBit, or you have stale NFS locks due to a system crash. See http://projects.gnome.org/gconf/ for information." How should I deal with the two issues respectively? Is there any drawback by simply running "virt-manager"? Regards, Allen 2014-10-27 Allen Qiu -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://www.redhat.com/archives/libvirt-users/attachments/20141027/6d6c6296…> ------------------------------ Message: 3 Date: Mon, 27 Oct 2014 10:05:47 +0100 From: Sven Schwedas <sven.schwedas(a)tao.at> To: libvirt-users(a)redhat.com Subject: Re: [libvirt-users] What is the difference between running "virt-manager" and "sudo virt-manager"? Message-ID: <544E0AEB.4080005(a)tao.at> Content-Type: text/plain; charset="iso-8859-1" On 2014-10-27 09:31, Allen Qiu wrote: > Hi all, > > What is the difference between starting virt-manager by "virt-manager" > and by "sudo virt-manager"? It seems that there are two copy of > virt-manager running in the background. > > When I run *"virt-manager",* I got a error of "*Unable to open a > connection to the libvirt management daemon. **Libvirt URI is: > qemu:///system **Verify that: - The 'libvirtd' daemon has been started*". > > Whereas when I run *"sudo virt-manager",* I got a error of *"Error > starting Virtual Machine Manager: Failed to contact configuration > server; some possible causes are that you need to enable TCP/IP > networking for ORBit, or you have stale NFS locks due to a system crash. > See **http://projects.gnome.org/gconf/**for information."* > ** > How should I deal with the two issues respectively? Is there any > drawback by simply running "virt-manager"? You should set up correct permissions for libvirtd (cf. libvirtd.conf, unix_sock_group) and use virt-manager/virsh as unprivileged user. > > Regards, > > Allen > > 2014-10-27 > ------------------------------------------------------------------------ > Allen Qiu > > > _______________________________________________ > libvirt-users mailing list > libvirt-users(a)redhat.com > https://www.redhat.com/mailman/listinfo/libvirt-users > -- Mit freundlichen Gr??en, / Best Regards, Sven Schwedas Systemadministrator TAO Beratungs- und Management GmbH | Lendplatz 45 | A - 8020 Graz Mail/XMPP: sven.schwedas(a)tao.at | +43 (0)680 301 7167 http://software.tao.at -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 648 bytes Desc: OpenPGP digital signature URL: <https://www.redhat.com/archives/libvirt-users/attachments/20141027/28f925c0…> ------------------------------ _______________________________________________ libvirt-users mailing list libvirt-users(a)redhat.com https://www.redhat.com/mailman/listinfo/libvirt-users End of libvirt-users Digest, Vol 58, Issue 33 *********************************************

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[libvirt-users] Error starting Virtual Machine Manager: Failed to contact configuration server...
by Allen Qiu 27 Oct '14

27 Oct '14

Hi all! Do you have any idea about the following error message from virt-manager. I was trying to start it with "sudo virt-manager". Do you think I can fix this by simply restarting libvirtd? Regards, Allen Error starting Virtual Machine Manager: Failed to contact configuration server; some possible causes are that you need to enable TCP/IP networking for ORBit, or you have stale NFS locks due to a system crash. See http://projects.gnome.org/gconf/ for information. (Details - 1: Could not send message to GConf daemon: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.) Traceback (most recent call last): File "/usr/share/virt-manager/virt-manager.py", line 383, in <module> main() File "/usr/share/virt-manager/virt-manager.py", line 315, in main config = virtManager.config.vmmConfig(appname, appversion, glade_dir) File "/usr/share/virt-manager/virtManager/config.py", line 98, in __init__ self.conf.add_dir(self.conf_dir, gconf.CLIENT_PRELOAD_NONE) GError: Failed to contact configuration server; some possible causes are that you need to enable TCP/IP networking for ORBit, or you have stale NFS locks due to a system crash. See http://projects.gnome.org/gconf/ for information. (Details - 1: Could not send message to GConf daemon: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.) 2014-10-27 Allen Qiu

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[libvirt-users] Using virsh on OSX to control a VMs on a linux machine
by Johannes Kastl 25 Oct '14

25 Oct '14

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi everyone, maybe this is a stupid thing, but Google found no answer. So, for the next one trying this: I have a linux server, that runs a couple of VMs, and on which libvirt and virsh work like a charm. From time to time I'm on a Mac OSX machine, where I can install libvirt from macports very comfortably. But this far I have not gotten it to work with anything apart from the virtualbox that is installed on osx. I always get a hangup error, that is not listed on http://wiki.libvirt.org/page/Failed_to_connect_to_the_hypervisor: > error: failed to connect to the hypervisor error: internal error: > received hangup / error event on socket So I had to enter the path to the socket (on the linux machine), as the OSX libvirt thinks it is in /opt/local/..., where the whole macports stuff is. On linux it's in /var/run/libvirt/. So, the following works: > virsh -c > qemu+ssh://example.org/system?socket=/var/run/libvirt/libvirt-sock > list --all Regards, Johannes - -- `Even if I could, I wouldn't. Scars can come in useful. I have one myself above my left knee which is a perfect map of the London Underground.´ (Albus Dumbledore, Harry Potter I) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) Comment: Using GnuPG with SeaMonkey - http://www.enigmail.net/ iEYEARECAAYFAlRLpysACgkQzi3gQ/xETbLb8QCeMXgA3A0erpPvc3fHpOWSnBYG 6AAAoI6e3+Kzk4Q30GBbixCgea6TBEGy =RMS/ -----END PGP SIGNATURE-----

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[libvirt-users] libvirt guests graceful shutdown upon hosts powerdown/reboot
by lejeczek 25 Oct '14

25 Oct '14

hi everybody by an assumption I expected VM guests to be shut down/off gracefully when the host is being powered down or rebooted, but this does not seem to be the case so I wonder.. Am I missing some libvirt components/packages ? Or my assumption is incorrect and guests have to be shutdown manually? it's all SL 7 and guest are M$ regards P.

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[libvirt-users] Specify hard disk type (immutable) in the domain.xml file
by fdytr ytruy 24 Oct '14

24 Oct '14

P { margin-bottom: 0.21cm; }Hi! I'm using libvirt withVirtual Box. I have installed libvirt 0.10.2 and Virtual Box 4.1. I want to use "virsh define"to define my Virtual Box virtual machine. My question is: In my domain.xml, how can Ispecify that my hard disk is of type immutable/ multi attach etc. Can I use som kind oftag or attribute, something like this: <disk type='file'device='disk'> <sourcefile='/path/to/my/file.vdi'/> <target dev='hda'bus='ide'/> <type>immutable</type> </disk> In the domain.xml is it possible to specifythe path to my folder where I have my snapshot.vdi file? Thanks! LL

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[libvirt-users] question about libvirt network Xml
by Robert Li (baoli) 24 Oct '14

24 Oct '14

Hi, I’m an openstack developer trying to use Assignment from a pool of SRIOV VFs in a libvirt <network> definition from this link http://wiki.libvirt.org/page/Networking My question is is it possible for nova (the openstack compute) to know which VF out of the pool will be allocated to a VM before it invokes libvirt to launch it? Thanks In advance, Robert

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[libvirt-users] How can a user process be automatically started after the container is started?
by WANG Cheng D 24 Oct '14

24 Oct '14

Dear All, I want to start my application automatically after I start the container with a virsh command " virsh -c lxc:/// start mycontainer" How can I achieve this? Thank you in advance. Cheng

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[libvirt-users] LXC container OS upgrade How?
by mallu mallu 24 Oct '14

24 Oct '14

Can someone tell me how I can upgrade OS on a lxc container? I want to upgrade my containers from centos 6.4 to centos 6.5. I have upgraded the host on which these containers are running on to centos. But want to know how to upgrade the containers. Thank you

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[libvirt-users] Public IP addresses are not logged in VMs
by Roland Giesler 24 Oct '14

24 Oct '14

Anyone that can help me solve this one? I have around 4 VM's on a server and the network is bridged and a /28 public IP range assigned to it . When a client connects to one of the VM's, they all always log the address of the host server, never the client ip address. How can I fix this? Things I have investigated: 1. Switch to routed network. That would not help, since I would firstly need another public IP subnet to route to (the virtual machines). 2. Could have something to do with the libvirt firewall rules, but they are default, I didn't touch them I have read many posts in forums and websites, but none make any mention of this behaviour. Help would really be great!

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[libvirt-users] Libvirt with containers
by Anjali Kulkarni 20 Oct '14

20 Oct '14

Hi, I am trying to define a container using libvirt, and I need to allow access of the device /dev/uio0 on the host on the container as well. That is, I have the following line in the container config file: lxc.mount.entry = /dev/uio0 dev/uio0 none bind,create=file lxc.cgroup.devices.allow = c 249:1 rwm And I want to add it in the libvirt XML file for the container. I tried something like: <filesystem accessmode="passthrough" type="mount"> <source file="/dev/uio0" /> <target dir="/dev/uio0" /> </filesystem> But it gave me error: root# virsh -c lxc:/// define lxc_v.xml error: Failed to define domain from lxc_v.xml error: missing source information for device /dev/uio0 Can someone pls help, how I can add the /dev/uio0 to the xml file? Thanks Anjali

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[libvirt-users] HostDevev SCSI Devices
by Fl＠sh 20 Oct '14

20 Oct '14

http://libvirt.org/formatdomain.html#elementsHostDevSubsys At this description used "drive"-typed address for SCSI. But when i get xml-description of scsi-devices by <code> unsigned int flags = VIR_CONNECT_LIST_NODE_DEVICES_CAP_SCSI_HOST ; int ret = virConnectListAllNodeDevices (currWorkConnect, &nodeDevices, flags); then get by virNodeDeviceGetXMLDesc(nodeDevices[i], 0)); </code> i have same: <device> <name>scsi_host2</name> <path>/sys/devices/pci0000:00/0000:00:1f.2/ata3/host2</path> <parent>pci_0000_00_1f_2</parent> <capability type='scsi_host'> <host>2</host> <unique_id>3</unique_id> </capability> </device> . I understand that this device description contains a "pci"-typed addresses. Then where to get the "scsi"-typed address? -- Fl@sh

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[libvirt-users] drive-backup command permission denied.. and need some clarification
by Jd 16 Oct '14

16 Oct '14

Hi * Trying to get drive-backup command, getting permission denied. :( sudo virsh qemu-monitor-command --hmp my-instance --cmd drive_backup drive-virtio-disk0 /tmp/foo.vda.img Looks like apparmor issue. What can I modify to make this work ? * Couple of other questions drive-backup : * The doc seems to claim that it gives a point in time copy of the drive. So I assume that no need to take any snapshot etc.. and merge back in. * does it internally use snapshot ? Does this hook in to doing fsfreeze and unfreeze using guest agent and does it automagically ? I do not see any options here. * Suppose I have base <-- sn1 --<-- sn2 (QEMU active) . does it take data from sn2 only ? or base+sn1+sn2 .. full drive and creates a new qcow2 sparse file. Thanks /Jd

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[libvirt-users] Fwd: Hotadd memory and hotplug cpu
by ra va 16 Oct '14

16 Oct '14

Hello, Does KVM support hotadd memory and hot-plug cpu? I checked it using the virsh command but I can only increase the memory to the maximum memory that is initially set But setmaxmem command is failing. Which means this require a reboot of the guest # virsh setmaxmem 4 1048576 error: Unable to change MaxMemorySize error: Requested operation is not valid: cannot resize the maximum memory on an active domain #virsh setvcpus 4 4 error: internal error: unable to execute QEMU command 'cpu-add': Not supported Thanks ravargs

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[libvirt-users] VGA as vfio-pci and vnc server's blank/black display
by lejeczek 15 Oct '14

15 Oct '14

hi, I'm having a Radeon as vfio-pci, which seems to work perfectly fine, but... Qemu's model type='vga' gets "exlaimed" in win2k8's Device Manager with: " Windows has stopped this device because it has reported problems. (Code 43) " Now, that does not bother me that much as all I need on regular basis is RDP but VNC connection gets me nowhere. I get blank/black screen, it connects without errors/problems but nothing more. I know you would say VGA passthrough is only supported for very few VGA adapters but is the situation I describe normal/expected? regards

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Re: [libvirt-users] passthrough of PCI-device
by Weis, Michael (DWIE) 14 Oct '14

14 Oct '14

Good morning, there is a typo in my description; the line <address domain='0x0' bus='0x1' slot='0x00' function='0x0'/> should be <address domain='0x0' bus='0x2' slot='0x00' function='0x0'/> That was correct in my xml-file. Isn't there anybody how can help me with that? Regards Michael Weis Von: Weis, Michael (DWIE) Gesendet: Dienstag, 7. Oktober 2014 11:45 An: 'libvirt-users(a)redhat.com' Betreff: passthrough of PCI-device Hello, I try to passthrough a PCI-card to a VM named testvm I want to do that with an xml-file named hga.xml including the following content: <hostdev mode='subsystem' type='pci' managed='yes'> <source> <address domain='0x0' bus='0x1' slot='0x00' function='0x0'/> </source> </hostdev> When I execute virsh attach-device testvm hga.xml I get the following error: Fehler: Fehler beim Anhängen des Geräts von hga.xml (error: error while attaching device from hga.xml) Fehler: Interner Fehler: Kann Qemu-Befehl 'device_add' nicht ausführen: Device initialization failed. (error: internal error: cannot execute 'device_add': In the syslog of the host I get the following errors: Oct 7 11:32:34 artemis2 journal: Interner Fehler: Kann Qemu-Befehl 'device_add' nicht ausführen: Device initialization failed. Oct 7 11:32:53 artemis2 kernel: ffff880220fadd10 ffffffff810f924a ffff880220fadd28 0000000000000246 Oct 7 11:32:53 artemis2 kernel: ffff8800bd07a400 000000007265756d ffffffffa0866ee0 0000000000000000 Oct 7 11:32:53 artemis2 kernel: Call Trace: Oct 7 11:32:53 artemis2 kernel: [<ffffffff815e237b>] dump_stack+0x19/0x1b Oct 7 11:32:53 artemis2 kernel: [<ffffffff810f924a>] __setup_irq+0x54a/0x570 Oct 7 11:32:53 artemis2 kernel: [<ffffffffa0866ee0>] ? virqfd_wakeup+0xc0/0xc0 [vfio_pci] Oct 7 11:32:53 artemis2 kernel: [<ffffffff810f93cc>] request_threaded_irq+0xcc/0x170 Oct 7 11:32:53 artemis2 kernel: [<ffffffffa0866b8a>] vfio_intx_set_signal+0x10a/0x1f0 [vfio_pci] Oct 7 11:32:53 artemis2 kernel: [<ffffffffa08670e8>] vfio_pci_set_intx_trigger+0xc8/0x1b0 [vfio_pci] Oct 7 11:32:53 artemis2 kernel: [<ffffffffa086799b>] vfio_pci_set_irqs_ioctl+0x7b/0x100 [vfio_pci] Oct 7 11:32:53 artemis2 kernel: [<ffffffff8115d352>] ? memdup_user+0x42/0x70 Oct 7 11:32:53 artemis2 kernel: [<ffffffffa0865e74>] vfio_pci_ioctl+0x314/0xa00 [vfio_pci] Oct 7 11:32:53 artemis2 kernel: [<ffffffff81194b6a>] ? kmem_cache_alloc+0x1ba/0x1d0 Oct 7 11:32:53 artemis2 kernel: [<ffffffff811b156c>] ? get_empty_filp+0x5c/0x190 Oct 7 11:32:53 artemis2 kernel: [<ffffffff811f1891>] ? fsnotify+0x251/0x350 Oct 7 11:32:53 artemis2 kernel: [<ffffffff81251806>] ? security_file_alloc+0x16/0x20 Oct 7 11:32:53 artemis2 kernel: [<ffffffff811b15a0>] ? get_empty_filp+0x90/0x190 Oct 7 11:32:53 artemis2 kernel: [<ffffffffa084f163>] vfio_device_fops_unl_ioctl+0x23/0x30 [vfio] Oct 7 11:32:53 artemis2 kernel: [<ffffffff811c2af5>] do_vfs_ioctl+0x2e5/0x4c0 Oct 7 11:32:53 artemis2 kernel: [<ffffffff811af780>] ? vfs_write+0x160/0x1e0 Oct 7 11:32:53 artemis2 kernel: [<ffffffff811c2d71>] SyS_ioctl+0xa1/0xc0 Oct 7 11:32:53 artemis2 kernel: [<ffffffff815f2a59>] system_call_fastpath+0x16/0x1b Oct 7 11:32:53 artemis2 journal: Interner Fehler: Kann Qemu-Befehl 'device_add' nicht ausführen: Device initialization failed. My version-information: OS: CentOS Linux release 7.0.1406 (Core) Kernel: Linux artemis2 3.10.0-123.8.1.el7.x86_64 libvirt-daemon-driver-secret-1.2.8-1.el7.centos.x86_64 libvirt-1.2.8-1.el7.centos.x86_64 libvirt-daemon-kvm-1.2.8-1.el7.centos.x86_64 libvirt-client-1.2.8-1.el7.centos.x86_64 libvirt-daemon-driver-qemu-1.2.8-1.el7.centos.x86_64 libvirt-daemon-config-network-1.2.8-1.el7.centos.x86_64 libvirt-daemon-driver-interface-1.2.8-1.el7.centos.x86_64 libvirt-daemon-1.2.8-1.el7.centos.x86_64 libvirt-daemon-driver-nodedev-1.2.8-1.el7.centos.x86_64 libvirt-daemon-driver-storage-1.2.8-1.el7.centos.x86_64 libvirt-daemon-config-nwfilter-1.2.8-1.el7.centos.x86_64 libvirt-daemon-driver-network-1.2.8-1.el7.centos.x86_64 libvirt-daemon-driver-lxc-1.2.8-1.el7.centos.x86_64 libvirt-daemon-driver-nwfilter-1.2.8-1.el7.centos.x86_64 The PCI-Card I want to passthrough: 02:00.0 Ethernet controller: PLX Technology, Inc. Device 235e Subsystem: PLX Technology, Inc. Device 235e Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Interrupt: pin A routed to IRQ 16 Region 0: Memory at f0810000 (32-bit, non-prefetchable) [disabled] [size=256] Region 1: I/O ports at e000 [disabled] [size=256] Region 2: Memory at e0000000 (32-bit, non-prefetchable) [disabled] [size=256M] Region 3: Memory at f0000000 (32-bit, non-prefetchable) [disabled] [size=8M] Expansion ROM at f0800000 [disabled] [size=64K] Capabilities: [40] Power Management version 1 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Capabilities: [48] CompactPCI hot-swap <?> Capabilities: [4c] Vital Product Data Unknown large resource type 35, will not decode more. Kernel driver in use: vfio-pci Please help. Best regards Michael Weis PROPRIETARY: This e-mail contains proprietary information some or all of which may be legally privileged. It is intended for the recipient only. If an addressing or transmission error has misdirected this e-mail, please notify the authority by replying to this e-mail. If you are not the intended recipient you must not use, disclose, distribute, copy, print, or rely on this e-mail.

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[libvirt-users] Fixed Public IP to VM Guest
by Joel A Divekar 13 Oct '14

13 Oct '14

Hi All We have setup a Centos7 host server with KVM and have created multiple VM running Ubuntu 14.04 using virt-manager. All VMs are having forward mode as "NAT" and using internal DHCP IP address 192.168.122.x series and we gave them fixed ips based on their mac address. Now all these VMs are able to access Internet and able to run update on all these guest OS. But these VMs are web and API servers and they are required to be accessible from Internet. We have pool of public IPs and have assigned host with one public IP for example, we have pool like 192.168.111.1 to 192.168.111.25. We have assigned 192.168.111.2 to Host server and would like to assign 192.168.111.3 to Webserver and 192.168.111.4 to API server. So we changed our virsh network settings from default to routed as <forward mode='route' dev='em1'> and struggling to configure fixed IPs for our VMs. We would like to do exactly as mentioned in this link https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/ht… We have been struggling with this for last 3 days and no luck. Please can anybody guide us. Regards Joel Divekar

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[libvirt-users] live migration to localhost with lvm based storage
by Vasiliy Tolstov 11 Oct '14

11 Oct '14

I have lvm based (thin pool) storage on local disks. I need to move vps from one vg on one disk to another. Does it possible to migrate to localhost with blockcopy migration to another vg? I'm understand that i can move lv from one vg to another, but i don't need that. -- Vasiliy Tolstov, e-mail: v.tolstov(a)selfip.ru jabber: vase(a)selfip.ru

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[libvirt-users] How to assign multiple IP addresses to a container
by WANG Cheng D 10 Oct '14

10 Oct '14

Dear all, I want to assign multiple IP address to a container, does anybody know how to achieve that? Thanks in advance. Cheng

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[libvirt-users] is memoryBacking support 'share' and 'mem-path' parameter
by Linhaifeng 09 Oct '14

09 Oct '14

Hi, I want to use this qemu command '-object memory-backend-file,id=mem,size=2048M,mem-path=/mnt/huge,share=on' with libvirt but i can't find the 'mem-path' and 'share' in the documentation. because the vhost-user backend based on 'share=on' parameter and libvirt support vhostuser i guess there maybe another way to support this parameter? this is my xml: <cpu> <numa> <cell id='0' cpus='0' memory='1048576' memAccess='shared'/> <cell id='1' cpus='1' memory='1048576' memAccess='shared'/> </numa> </cpu> <memoryBacking> <hugepages> <page size="2" unit="M" nodeset="0,1"/> </hugepages>   </memoryBacking> <interface type='vhostuser'> <mac address='52:54:00:3b:83:1a'/> <source type='unix' path='/path/port1' mode='client'/> <model type='virtio'/> </interface> <interface type='vhostuser'> <mac address='52:54:00:3b:83:1b'/> <source type='unix' path='/path/port2' mode='client'/> <model type='virtio'/> </interface> when i create the VM the qemu command is like this without 'share=on' parameter: -object memory-backend-file,prealloc=yes,mem-path=/dev/hugepages/libvirt/qemu,size=1024M,id=ram-node0 -numa node,nodeid=0,cpus=0,memdev=ram-node0 -object memory-backend-file,prealloc=yes,mem-path=/dev/hugepages/libvirt/qemu,size=1024M,id=ram-node1 -numa node,nodeid=1,cpus=1,memdev=ram-node1

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[libvirt-users] Question about vnc connection password set to empty
by Wei Zhang 09 Oct '14

09 Oct '14

Hello, everybody here I have a question about graphical buffers for rhel7. Thanks so much in advance who can give me some suggestions about that. When I try to do regression for bug859317(https://bugzilla.redhat.com/show_bug.cgi?id=859317) on RHEL7， I found that guest could be connected success with virt-viewer when set/update the graphics passwd to empty. But according to comment 2 in this bug, libvirt will blocks all access to the VNC server when set a password to empty. So could you please help us check is it acceptable on RHEL7? Below is my test steps on RHEL7: Version-Release number of selected component (if applicable): libvirt-1.2.8-3.el7.x86_64 qemu-kvm-rhev-2.1.0-5.el7.x86_64 kernel-3.10.0-150.el7.x86_64 How reproducible: 100% Steps to Reproduce: 1. Define guest with a graphics device like: ......................................... <graphics type='vnc' port='-1' autoport='yes' passwd=""/> ......................................... 2. Connecting with vncviewer or virt-viewer . # virsh start dom2 # virsh dumpxml dom2 --security-info |grep graphics <graphics type='vnc' port='5900' autoport='yes' listen='127.0.0.1' passwd=''> </graphics> # virt-viewer dom2 connect the guest success with empty password 3. The problem can be reproduced when changed the graphics passwd from an non-empty to an empty # virsh dumpxml dom2 --security-info |grep graphics <graphics type='vnc' port='5900' autoport='yes' listen='127.0.0.1' passwd='123'> </graphics> # cat change-passwd.xml <graphics type='vnc' port='-1' autoport='yes' listen='127.0.0.1' passwd=''/> # virsh update-device dom2 change-passwd.xml # virsh dumpxml dom2 --security-info |grep graphics <graphics type='vnc' port='5900' autoport='yes' listen='127.0.0.1' passwd=''> </graphics> login the guest with virt-viewer command # virt-viewer testks also can connect the guest dom2 success with empty password 4. I produce the same steps on RHEL6.6 libvirt-0.10.2-46.el6.x86_64, the guest can not be connected when set graphics vnc password to empty, the same result with bug 859317. Actual results: we can login the guest when set the graphics passwd empty Expected results: I am not sure what is the right behaviour for RHEL7? thank

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