October 2019 - Users - libvirt List Archives

[libvirt-users] [virtual interface] detach interface during boot succeed with no changes
by Yalan Zhang 08 Sep '22

08 Sep '22

Hi guys, when I detach an interface from vm during boot (vm boot not finished), it always fail. I'm not sure if there is an existing bug. I have confirmed with someone that for disk, there is similar behavior, if this is also acceptable? # virsh destroy rhel7.2; virsh start rhel7.2 ;sleep 2; virsh detach-interface rhel7.2 network 52:54:00:98:c4:a0; sleep 2; virsh dumpxml rhel7.2 |grep /interface -B9 Domain rhel7.2 destroyed Domain rhel7.2 started Interface detached successfully <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/> </controller> <interface type='network'> <mac address='52:54:00:98:c4:a0'/> <source network='default' bridge='virbr0'/> <target dev='vnet0'/> <model type='rtl8139'/> <alias name='net0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> When I detach after the vm boot, expand the sleep time to 10, it will succeed. # virsh destroy rhel7.2; virsh start rhel7.2 ;sleep 10; virsh detach-interface rhel7.2 network 52:54:00:98:c4:a0; sleep 2; virsh dumpxml rhel7.2 |grep /interface -B9 Domain rhel7.2 destroyed Domain rhel7.2 started Interface detached successfully ------- Best Regards, Yalan Zhang IRC: yalzhang Internal phone: 8389413

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[libvirt-users] Live migrate + change interface name
by Marc Roos 08 Oct '20

08 Oct '20

Is it possible to do a live migrate of a guest, having on the from host a source_device=eth2 and to host a source_dev=eth1?

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[libvirt-users] Add Virtlyst to the list of libvirt users
by Daniel Nicoletti 24 Sep '20

24 Sep '20

Hi, I've just released v1.0.0 of Virtlyst[1] a web tool to manage VMs using Qt/C++/Cutelyst https://dantti.wordpress.com/2018/04/19/announcing-virtlyst-a-web-interface… Thanks. 1 - https://github.com/cutelyst/Virtlyst -- Daniel Nicoletti KDE Developer - http://dantti.wordpress.com

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[libvirt-users] Question about disabling UFO on guest
by Bao Nguyen 05 Aug '20

05 Aug '20

Hello everyone, I would like to ask a question regarding to disable UFO of virtio vNIC in my guest. I have read the document at https://libvirt.org/formatdomain.html *host* The csum, gso, tso4, tso6, ecn and ufo attributes with possible values on and off can be used to turn off host offloading options. By default, the supported offloads are enabled by QEMU. *Since 1.2.9 (QEMU only)* The mrg_rxbuf attribute can be used to control mergeable rx buffers on the host side. Possible values are on (default) and off. *Since 1.2.13 (QEMU only)* *guest* The csum, tso4, tso6, ecn and ufo attributes with possible values on and off can be used to turn off guest offloading options. By default, the supported offloads are enabl ed by QEMU. *Since 1.2.9 (QEMU only)* Then I disabled UFO on my vNIC on guest as the following configuration <devices> <interface type='network'> <source network='default'/> <target dev='vnet1'/> <model type='virtio'/> <driver name='vhost' txmode='iothread' ioeventfd='on' event_idx='off' queues='5' rx_queue_size='256' tx_queue_size='256'> *<host gso='off' ufo='off' />* *<guest ufo='off'/>* </driver> </interface> </devices> Then I reboot my node to get the change effect and it works. However, can I disable the UFO without touching the host OS? or it always has to disable on both host and guest like that? Thanks, Brs, Natsu

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[libvirt-users] Add support for vhost-user-scsi-pci/vhost-user-blk-pci
by Li Feng 23 Dec '19

23 Dec '19

Hi Guys, And I want to add the vhost-user-scsi-pci/vhost-user-blk-pci support for libvirt. The usage in qemu like this: Vhost-SCSI -chardev socket,id=char0,path=/var/tmp/vhost.0 -device vhost-user-scsi-pci,id=scsi0,chardev=char0 Vhost-BLK -chardev socket,id=char1,path=/var/tmp/vhost.1 -device vhost-user-blk-pci,id=blk0,chardev=char1 What type should I add for libvirt. Type1: <hostdev mode='subsystem' type='vhost-user'> <source protocol='vhost-user-scsi' path='/tmp/vhost-scsi.sock'></source> <alias name="vhost-user-scsi-disk1"/> </hostdev> Type2: <disk type='network' device='disk'> <driver name='qemu' type='raw' cache='none' io='native'/> <source protocol='vhost-user' path='/tmp/vhost-scsi.sock'> </source> <target dev='sdb' bus='vhost-user-scsi'/> <boot order='3'/> <alias name='scsi0-0-0-1'/> <address type='drive' controller='0' bus='0' target='0' unit='1'/> </disk> <disk type='network' device='disk'> <driver name='qemu' type='raw' cache='none' io='native'/> <source protocol='vhost-user' path='/tmp/vhost-blk.sock'> </source> <target dev='vda' bus='vhost-user-blk'/> <boot order='1'/> <alias name='virtio-disk0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/> </disk> Could anyone give some suggestions? Thanks, Feng Li -- The SmartX email address is only for business purpose. Any sent message that is not related to the business is not authorized or permitted by SmartX. 本邮箱为北京志凌海纳科技有限公司（SmartX）工作邮箱. 如本邮箱发出的邮件与工作无关,该邮件未得到本公司任何的明示或默示的授权.

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[libvirt-users] libvirt_lxc memory limit, emulator process part of the cgroup?
by Maximilian Philipps 15 Nov '19

15 Nov '19

hi, I am currently investigating a bug with libvirt lxc. Whenever I do a systemctl daemon-reload on the host, my container loses his memory limit and then reports having access to 8 exabyte of memory. I have tracked the issue down to two parts: memory.limit_in_bytes jumps from the correct value to 9223372036854771712. libvirt lxc appears to set the memory limit in transient way without writing a config for systemd. I can't prevent memory.limit_in_bytes changing by setting the correct value through systemctl set-property --runtime <scope> MemoryLimit= tasks in the memory cgroup gets cleaned up. After starting the container the cgroup contains 3 pid. The pid of the libvirt_lxc process, the pid of the init process in the container and third unknown pid that doesn't exists in /proc/. After a demon-reload only the init process remains in the cgroup and unless I move the libvirt_lxc process into the cgroup the memory limit isn't enforced. I have also noticed that when starting libvirtd it complains about GetMachineByPID failing for the libvirt_lxc process. This leaves me with one big question, the the emulator process libvirt_lxc supposed to be part of the container's cgroup or not? The leader of the container is the init process in the container. I am unsure on how the additional emulator process is supposed to be registered. Using: Debian Stretch, libvirt 5.0.0-4, systemd 241-7~deb10u1 and hybrid cgroups. Regards, Maximilian Philipps

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[libvirt-users] 32 bit support
by Phill. Whiteside 05 Nov '19

05 Nov '19

Hi good people, I've got a bit of a weird issue. I'm using QEMU emulator version 2.11.1(Debian 1:2.11+dfsg-1ubuntu7.19) And after some considerable time of not using it for 32bit installations I now find that it can no longer install some older 32 bit installations (e.g. https://phillw.net/isos/lubuntu/natty/ ) The CPU goes to 100% and then after a while it just stops (I'm using virt-manager v1.5.1) I'm running lubuntu 18.04 (64 bit) on an i7 chipset that runs 64 bit debian / centos and MS server 2019 KVM instances via virt-manager without problems. Any pointers would be appreciated, Phill.

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[libvirt-users] Memory ballooning
by Mauricio Tavares 31 Oct '19

31 Oct '19

So I as I was searching for the difference between memory and currentMemory, I bumped into http://www.espenbraastad.no/posts/memory-ballooning/ Is the problem this ancient post mention still an issue?

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[libvirt-users] win10 vm stuck in automatic repair
by Jack Kamm 28 Oct '19

28 Oct '19

Hello, I have a Windows 10 guest, when I boot it, it goes in to Automatic Repair mode, and after some time reports it was unable to repair the PC. This is from an older snapshot ("snapshot1"), and if I try switching back to a more recent snapshot ("snapshot2"), libvirt reports that it can't find the snapshot: > libvirt.libvirtError: internal error: Child process (/usr/bin/qemu-img > snapshot -a snapshot2 /var/lib/libvirt/images/win10.qcow2) unexpected > exit status 1: qemu-img: Could not apply snapshot 'snapshot2': Failed > to load snapshot: Invalid argument Does anyone have any ideas why this might have happened, or any suggestions for how I can go about diagnosing/fixing this? This was a pretty simple Windows 10 VM, that I used for Microsoft Office. Everything was managed through virt-manager and most settings left at the original defaults. Thanks, Jack

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[libvirt-users] Reg: Adding "edu" device using XML file
by bharath paulraj 24 Oct '19

24 Oct '19

Hi Team, I am exploring "edu" device in QEMU to add my own custom device. I am able to add the device using the command line. Would it be possible to add the device using XML file through libvirt? -- Regards, Bharath

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[libvirt-users] X11 apps on lxc
by Jesus 21 Oct '19

21 Oct '19

Hi How can I run X11 apps on the local X11 using libvirt lxc? I already had this runing on centos 7 but I upgraded to centos 8 (I rebuild libvirt) and the socket is not in the /tmp/.X11-unix/ folder of the vm any more. Can somebody help with this? Thanks!!

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[libvirt-users] [libvirt]Some questions about live migration
by Luyao Zhong 18 Oct '19

18 Oct '19

Hi libvirt experts, I have some questions about live migration. * If a live migration failed during migrating, will the domain exist on the destination host? * Is the flag VIR_MIGRATE_PAUSED make sense to live migration? It's a little confusing for me. Does that indicate if I set this flag, then the domain on the destination will not disappear even if the migration is failed, and it will in 'paused' status? If not setting this flag, what will it be? It may be similar to the question above. I filed a bug https://bugzilla.redhat.com/show_bug.cgi?id=1762703 about this flag, since its description is not very clear. Thanks in advance, looking forward to your reply. Regards, Luyao -- 2.7.4

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[libvirt-users] Transient permission denied errors when sending audit logs
by Roman Mohr 17 Oct '19

17 Oct '19

Hi, In kubevirt we are running into a strange permission problem on libvirt-5.0. We see transient "Permission Denied" errors when "virAuditSend" wants to send an audit log. [1] shows the logs of one of these containers. Here an example: {"component":"virt-launcher","level":"warning","msg":"Failed to send audit message virt=kvm vm=\"kubevirt-test-default_testvmit2pqrkrlrwbhptcjcs4n67jn6pjqvmtd7pkrpdmkrl5sldzs4rxr9zdg8m45jxz\" uuid=56a33283-f6d7-4002-b188-1fed83186545 vm-ctx=+107:+107 img-ctx=+107:+107 model=dac: Permission denied","pos":"virAuditSend:141","subcomponent":"libvirt","thread":"30","timestamp":"2019-10-08T23:58:40.651000Z"} We recently switched in kubevirt to a dedicated selinux policy and remove the general "privileged" flag from the containers where we run libvirt in. This is very likely related to it, but we can't make sense out of it, because: * It randomly affects one out of a few hundred containers which we start * It is not bound to a specific node * It is only transient on that container. After a few denials libvirt can just continue. * Sometimes it is accompanied with a transient "Permission denied" on /dev/null from our code in that container (so not from something which libvirt tries to do). Has someone seen something like this before in different environments? Best Regards, Roman [1] https://storage.googleapis.com/kubevirt-prow/pr-logs/pull/kubevirt_kubevirt…

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[libvirt-users] create virtual network fails with virt-manager
by Marko Horn 16 Oct '19

16 Oct '19

hello list, creatig a virtual network via virt-manager fails. gentoo linux vanilla-sources 5.3.1 virt-manager 2.2.1 qemu 4.0 libvirt 5.5.0 the error output of Error creating virtual network: internal error: Failed to apply firewall rules /sbin/iptables -w --table filter --insert LIBVIRT_INP --in-interface virbr1 --protocol tcp --destination-port 67 --jump ACCEPT: iptables: No chain/target/match by that name. Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/asyncjob.py", line 75, in cb_wrapper callback(asyncjob, *args, **kwargs) File "/usr/share/virt-manager/virtManager/createnet.py", line 472, in _async_net_create netobj.create() File "/usr/lib64/python3.6/site-packages/libvirt.py", line 2993, in create if ret == -1: raise libvirtError ('virNetworkCreate() failed', net=self) libvirt.libvirtError: internal error: Failed to apply firewall rules /sbin/iptables -w --table filter --insert LIBVIRT_INP --in-interface virbr1 --protocol tcp --destination-port 67 --jump ACCEPT: iptables: No chain/target/match by that name. /sbin/iptables exists any ideas? kind regards m@rko -- zbfmail - Mittendrin statt nur Datei! Datei sein ist alles!

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[libvirt-users] Fwd: Libvirt-QEMU : Multiplex the output from qemu's serial port to a pty as well as a file (basically redirect console to file as well as pty device)
by gokul cg 11 Oct '19

11 Oct '19

Hi Folks , As per https://libvirt.org/formatdomain.html#elementsConsole Regardless of the type, character devices can have an optional log file associated with them. Whether the lgging functionality is same as mapping device to file ? Whether libvirt xml syntax below both 1 and 2 are same ? 1) <serial type='pty'> <log file='/var/lib/nova/instances/7151c8b7-1ea5-4701-bb79-b482d9e253b8/console.log' append='off'/> <target port='0'/> </serial> 2) <serial type='pty'> <source path='/tmp/serial.log'/> <target port='0'/> </serial> is it possible to multiplex the output from qemu's serial port to a pty as well as a file (basically redirect console to file as well as pty device)? Regards Gokul

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[libvirt-users] hidden state='on' not working
by Michael Lipp 09 Oct '19

09 Oct '19

Hi, I have set <kvm> <hidden state='on'/> </kvm> in my configuration file. But looking at the command line, I see -cpu ...,hypervisor=on,... Should the setting result in hypervisor=off (or -hypervisor) - Michael

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[libvirt-users] Emulated TPM doesn't work on Debian Buster
by procmem＠riseup.net 08 Oct '19

08 Oct '19

Hi. I am very interested in the security properties a totally open TPM can give our users - its use as a universal smartcard to protect all types of keys. When adding the virtual 1.2 or 2.0 TPM I get the vague error below. OS is Debian stable with standard packages. Error starting domain: Unable to find 'swtpm' binary in $PATH: No such file or directory Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/asyncjob.py", line 75, in cb_wrapper callback(asyncjob, *args, **kwargs) File "/usr/share/virt-manager/virtManager/asyncjob.py", line 111, in tmpcb callback(*args, **kwargs) File "/usr/share/virt-manager/virtManager/libvirtobject.py", line 66, in newfn ret = fn(self, *args, **kwargs) File "/usr/share/virt-manager/virtManager/domain.py", line 1400, in startup self._backend.create() File "/usr/lib/python3/dist-packages/libvirt.py", line 1080, in create if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self) libvirt.libvirtError: Unable to find 'swtpm' binary in $PATH: No such file or directory

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[libvirt-users] Error validating install location: Distro 'rhel8' does not exist in our dictionary
by Kaushal Shriyan 07 Oct '19

07 Oct '19

Hi, I am running the below command to spawn CentOS8 based Virtual Machines using KVM based technology virt-install --name=centos8 > --file=/linuxkvmguestosdisk/var/lib/libvirt/images/centos8 --file-size=100 > --nonsparse --vcpus=2 --ram=8096 --network=bridge:br0 --os-type=linux > --os-variant=rhel8 --graphics none > --location=/linuxkvmguestosdisk/var/lib/libvirt/isos/CentOS-8-x86_64-1905-dvd1.iso > --extra-args="console=ttyS0" > ERROR Error validating install location: Distro 'rhel8' does not exist > in our dictionary Any clue and i look forward to hearing from you. Thanks in advance. Best Regards,

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Re: [libvirt-users] Internal error reported by libvirt while creating a VM
by Andrea Bolognani 04 Oct '19

04 Oct '19

Re-added the list. Please *do not* drop the libvirt-users mailing list from the recipients again! On Thu, 2019-10-03 at 16:42 -0400, Ajay Kumar wrote: > Hi Andrea, > > Thank you for your help, > > The above issues are addressed while reinstalling libvirt 4.0.0. Currently, I could create a VMs on libvirt. > > I have another issue while configuring/editing win10.xml file. > After edit or insert of few lines in win10.XML file using virsh i.e at /etc/libvirt/qem$ virsh edit win10 Saying that you changed "few lines" is not at all useful: if you hope to get any help from the list, you'll have to share the *exact* changes you made each time and the full XML configuration that resulted from them. > I am getting a below error. > @ubuntu-kvm3:/etc/libvirt/qemu$ virsh edit win10 > error: internal error: Child process (LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin /usr/local/bin/qemu-system-x86_64 -help) unexpected exit status 126: libvirt: error : cannot execute binary /usr/local/bin/qemu-system-x86_64: Permission denied > > I understand that this could be the problem of AppArmor security feature it doesn't allow new binary such as (qemu-system-x86_64) to execute > > Later I have followed the below link to address > [ https://www.reddit.com/r/VFIO/comments/9pi2cd/how_to_set_up_qemu_30_on_ubun… > 6. Create AppArmor rules so libvirt can use the binary ] > > here i have added few lines in 2 files as per the procedure. later when i restart apparmor I got the below error Again, saying that you added "few lines" is not helpful because we have no idea what those lines look like, so it's simply impossible for anyone to figure out the root cause of the error message you're seeing. Please share the *exact* changes you made. -- Andrea Bolognani / Red Hat / Virtualization

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[libvirt-users] network namespace for multiple overlapping nat networks?
by Fred Clift 04 Oct '19

04 Oct '19

I have noticed that you can't have multiple separate NAT style libvirt networks defined with the same private IP blocks. For example I have this default network: <network> <name>default</name> <uuid>13baf167-02ff-4312-928c-b82ed4df5785</uuid> <forward mode='nat'> <nat> <port start='1024' end='65535'/> </nat> </forward> <bridge name='virbr1' stp='on' delay='0'/> <mac address='52:54:00:9c:8f:7c'/> <ip address='192.168.122.1' netmask='255.255.255.0'> <dhcp> <range start='192.168.122.2' end='192.168.122.25'/> </dhcp> </ip> </network> I can't define another nat network that uses the same IP address range. I assume this is an implementation limit because of how the iptables rules are written/work for doing the NAT. I'd like to have 10 networks with the same default IP address, attached to 10 vms that all run off the same read-only image. I know that I could use different ranges and then have my vms use dhcp, and or a few other similar ways. I'm limited by the virtual image I want to run (close source OS, licensed-and-IP-locked software - I have plenty of licences for instances). I'd love to replace my 10 instances all with their own IPs on a public bridge with 10 NAT'd instances all using the same IP each on their own little network world - so I'd make a separate bridge for each, but of course it doesn't work. I have a proof-of-concept setup where I use a routed private network + nat with the application vm and a small linux vm in pairs. The linux vms have a public IP, and a private bridge with a fixed ip to be the default route of the app vm. Then the app vm can have a fixed ip, route to a fixed default route, and get natted to whatever it's buddy router vm's public IP is. This works - but then I have 20 vms instead of 10. They are small and dont use much cpu, but they use ram... which is somewhat constraining. And I have to maintain a router image. I'm going to settle for this setup If I have to, but I'd rather not. So I had the bright idea of somehow routing/natting each vm through a network namespace. I could perhaps avoid having to have a whole separate linux instance just to get a copy of the network stack to do nat with. I'm kind of struggling to see how I'd could have each libvirt vm run in it's own namespace. I don't think it is possible actually. But perhaps I could use an extra set of IPs and an extra bridge/veth-pair to work some kind of magic. Anyone out there doing something like this? Can you help me wrap my head around how to mix libvirt kvm VMs and network namespaces? Is there some other simpler way to achieve what I want? Thanks. Fred Clift fred(a)clift.org

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[libvirt-users] Using encrypted volumes
by Dominik Reusser 02 Oct '19

02 Oct '19

I was encouraged [1] to use the storage encryption mechanism of libvirt [2]. However, it is not clear to me how to generate a corresponding encrypted volume. Preferably, I would like to use virt-install to arrive at such an encrypted volume, similar to e.g. virt-install --connect qemu:///system -n testImage -r 2048 --os-type=linux --disk testImage.img,device=disk,bus=virtio,size=8,sparse=true,format=raw --os-variant debian10 --vnc --location ftp://ftp2.de.debian.org/debian/dists/buster/main/installer-amd64/ I already asked a related question on server fault [3], but this is a better targeted audience. Sorry for double-posting. [1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=933385 [2] https://libvirt.org/formatstorageencryption.html#StorageEncryption [3] https://serverfault.com/questions/986488/how-to-enable-volumeencryption-dur…

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Re: [libvirt-users] Internal error reported by libvirt while creating a VM
by Andrea Bolognani 02 Oct '19

02 Oct '19

On Tue, 2019-10-01 at 17:55 -0400, Ajay Kumar wrote: > Hi Andrea, > > Thank you for your response. Sure I don't CC to libvirt developers. Please keep the list in the loop, though! I've re-added it. > I am getting an error while creating a Win10 virtual machine using VMM or virt-manager GUI. > I could configure the windows 10 quest using its XML file only ofter creating a VM using virt-manager GUI in the following the path /etc/libvirt/qemu. > > The modified QEMU emulator is running correctly > @ubuntu-kvm3:/usr/local/bin$ ls > ivshmem-client qemu-ga qemu-io qemu-pr-helper virsh virt-host-validate virt-pki-validate vmi-dump-memory vmi-process-list vmi-win-offsets > ivshmem-server qemu-img qemu-nbd qemu-system-x86_64 virt-admin virt-login-shell virt-xml-validate vmi-module-list vmi-win-guid This only proves that you've installed it, not that it works. And as I said, the modified binary probably works fine on its own but libvirt might not be able to drive it, at least without tweaks. > @ubuntu-kvm3:/etc/libvirt/qemu$ ls > networks Just for the record, you're not supposed to modify files in /etc/libvirt/qemu directly; use virsh instead. > I couldn't see guest XML file here(because the VM creation was not done). > attached snap displaying error while creating a VM. If you run $ virt-manager --debug from the command line you will get a lot of output, including the XML that's passed to libvirt. Please attempt the installation again, capture that output in a plain text file and send it to the list as an attachment. Also run $ /usr/local/bin/qemu-system-x86_64 -machine help and attach the output of that command, too. That should help us figure out what's wrong. -- Andrea Bolognani / Red Hat / Virtualization

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[libvirt-users] Internal error reported by libvirt while creating a VM
by Ajay Kumar 01 Oct '19

01 Oct '19

Hi, am Ajay Kumar. I am trying to create a virtual machine on the remote host (where libvirt 5.8.0) was installed using a virtual machine manager which are running on the local ubuntu machine. *The specification of my remote host are:* *Hypervisor: *KVM *QEMU version:* QEMU emulator version 2.4.0.1, Copyright (c) 2003-2008 Fabrice Bellard The below error is propagating when I am trying to install KVM-VMI ( https://github.com/KVM-VMI/kvm-vmi/tree/kvmi) with modified QEMU, and there is a modified QEMU involved, in /usr/local/bin/qemu-system-x86_64. The below particular error propagating when I am trying to create a virtual machine using VMM gui (virt-manager). Unable to complete install: 'internal error: process exited while connecting to monitor: (process:7400): GLib-WARNING **: 18:19:45.044: ../../../../glib/gmem.c:489: custom memory allocation vtable not supported 2019-09-30T18:19:45.046714Z qemu-system-x86_64: -msg timestamp=on: Unsupported machine type Use -machine help to list supported machines!' Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/asyncjob.py", line 89, in cb_wrapper callback(asyncjob, *args, **kwargs) File "/usr/share/virt-manager/virtManager/create.py", line 2553, in _do_async_install guest.start_install(meter=meter) File "/usr/share/virt-manager/virtinst/guest.py", line 498, in start_install doboot, transient) File "/usr/share/virt-manager/virtinst/guest.py", line 434, in _create_guest domain = self.conn.createXML(install_xml or final_xml, 0) File "/usr/lib/python2.7/dist-packages/libvirt.py", line 3603, in createXML if ret is None:raise libvirtError('virDomainCreateXML() failed', conn=self) libvirtError: internal error: process exited while connecting to monitor: (process:7400): GLib-WARNING **: 18:19:45.044: ../../../../glib/gmem.c:489: custom memory allocation vtable not supported 2019-09-30T18:19:45.046714Z qemu-system-x86_64: -msg timestamp=on: Unsupported machine type Use -machine help to list supported machines! -- *With Best Regards:* Ajay

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