[libvirt-users] Method for connecting to CDROM/DVD
by CJ Mills
Hi everyone, I have a question on connecting to hardware devices. With virt-
manager I am attempting to use a hardware cdrom/dvd drive from an Ubuntu 16.04
VM however, i keep getting "'host_cdrom' is not whitelisted" errors when
starting the VM. After some searching I checked my processor and realized it
does not support VT-d. Is this 1) a requirement for sharing the device with the
VM, and 2) the only way of sharing the device?
6 years, 10 months
[libvirt-users] Virtualization Management Platforms
by TomK
Hey All,
Curious about the best, easy to use virtualization management platform
for small labs of 30-40 physical servers.
Looking for something that's relatively simple to operate, install and
lightweight but with enough maturity to provide monitoring as well as
holistic views of the entire physical space etc.
Hearing of oVirt, Xen and Eucalyptus to name a few but wondering what
other options do I have for a small physical space?
--
Cheers,
Tom K.
6 years, 10 months
[libvirt-users] libvirt and NAT on a system that already has a DHCP server
by john@bluemarble.net
I'm trying to use virt-manager and qemu/kvm on Arch Linux. The box I'm
using is also the router for my house. It runs a kea DHCP server. When I
try to start the default NAT network, it can't start dnsmasq because that
port is already bound. Is there a way to have it not bind on this
interface? I see there is an except-on statement in the dnsmasq.conf, but
I can't add lines to that directly, and I didn't see any way to add
special options using virsh net-edit default.
Thanks.
6 years, 10 months
[libvirt-users] Libvirt for virtual devices like virtual printers
by Deepti S
Hi,
I have a couple of questions.
- I am a new libvirt code user. I have just cloned the repo and I am
looking for a suitable debugger/IDE which will help me debug the code.
- I work in developing and creating virtual printers with display, with
QEMU as the hypervisor (no KVM-only Qemu).
Currently we have our own application to manage the virtual printers.
Our plan is to migrate to libvirt, and enable our application to use the
libvirt APIs.
libvirt code currently looks to be specialized in pure OS-specific
guests (like PCs), and I hit snags where there are manadatory devices added
which a virtual printer does not need.
Are there any users who are looking into customized virtual devices? I
would like to knowledge share with them.
The intention is to provide new libvirt APIs whenever there is such a
snag and thus enable libvirt to be used for managing virtual printers.
- One issue that we are seeing is with regard to USB Host Controller:
We have a customized model of ehci USB Host Controller (named
nr52_ehci_usb) in qemu (locally built).
When I add the custom value (n552_ehci_usb) of the host controller as
the "model" type in my dom xml, virsh define <xml> fails with invalid model
type error.
I remove the usb controller entry from the xml, and add "-usb" as a
"qemucommandline" parameter, but then libvirt adds the device lsi (-device
lsi,id=scsi0 -usb), and the virsh create command fails with:
"-device lsi,id=scsi0 No PCI bus found for lsi53c895a".
The board we have created in QEMU does not have PCI bus implemented.
Is there any way I can get my usb host controller to be recognized by
libvirt?
Is there a way I can prevent lsi device from getting added when I make
-usb a qemu command line parameter?
Regards,
Deepti
6 years, 10 months
[libvirt-users] failed to update cdrom device with rbd disk
by chao.zhou@zstack.io
Hello,
I'm trying to using virsh update-device to update the CDROM from type='file'
to ceph rbd iso with type='network'.
But I always get
error: Failed to update device from disk
error: internal error: unable to execute QEMU command 'change': error
connecting: Operation not supported
I'm using libvirt-libs-3.10.0-1.el7.x86_64 with centos7.4
my original cdrom xml:
<disk type='file' device='cdrom'>
<driver name='qemu' type='raw'/>
<target dev='hdc' bus='ide' tray='open'/>
<readonly/>
<alias name='ide0-1-0'/>
<address type='drive' controller='0' bus='1' target='0' unit='0'/>
</disk>
my rbd cdrom xml:
<disk device="cdrom" type="network">
<driver name='qemu' type='raw'/>
<auth username="zstack">
<secret type="ceph" uuid="efd3eb93-014f-4a0f-ba1f-84d7e70c9a89"/>
</auth>
<source
name="ssd/4922ebebd7b52f11bf13b3a482b6ab7e@4922ebebd7b52f11bf13b3a482b6ab7e"
protocol="rbd">
<host name="192.168.250.35" port="6789"/>
</source>
<target bus="ide" dev="hdc"/>
<readonly/>
</disk>
>From the libvirtd.log, I got
Send command
'{"execute":"change","arguments":{"device":"drive-ide0-1-0","target":"rbd:ss
d/4922ebebd7b52f11bf13b3a482b6ab7e@4922ebebd7b52f11bf13b3a482b6ab7e:auth_sup
ported=none:mon_host=192.168.250.35\\:6789","arg":"raw"},"id":"libvirt-286"}
'
which seems it pass the auth_support=none to the qemu, while I'm using an
authentication ceph, it should use auth_support=cephx instead.
I also tried to boot the VM with rbd iso and then update-device to another
rbd iso, but got no luck with the same error.
I have succeeded to update-device with libvirt-1.3.3,
I noticed that it depends on the orig_disk->privData->secinfo, and in my
environment it will be null which leads to the auth_support=none.
So I'm wondering if this is a bug or I did something wrong with my
configuration. Thanks in advance,
Best Regards,
Chao
6 years, 10 months
[libvirt-users] CfP 13th Virtualization in High-Performance Cloud Computing Workshop (VHPC '18)
by VHPC 18
*====================================================================CALL
FOR PAPERS 13th Workshop on Virtualization in High-Performance Cloud
Computing (VHPC '18)held in conjunction with the International
Supercomputing Conference - High Performance,June 24-28, 2018, Frankfurt,
Germany.(Springer LNCS Proceedings)
====================================================================Date:
June 28, 2018Workshop URL: http://vhpc.org <http://vhpc.org>Paper
Submission Deadline: April 23, 2018, Springer LNCS, rolling abstract
submissionAbstract/Paper Submission Link:
https://edas.info/newPaper.php?c=24355
<https://edas.info/newPaper.php?c=24355>Special Track: GPU - Accelerator
Virtualization Call for PapersVirtualization technologies constitute a key
enabling factor for flexible resource managementin modern data centers, and
particularly in cloud environments. Cloud providers need tomanage complex
infrastructures in a seamless fashion to support the highly dynamic
andheterogeneous workloads and hosted applications customers deploy.
Similarly, HPCenvironments have been increasingly adopting techniques that
enable flexible managementof vast computing and networking resources, close
to marginal provisioning cost, which isunprecedented in the history of
scientific and commercial computing.Various virtualization technologies
contribute to the overall picture in different ways: machinevirtualization,
with its capability to enable consolidation of multiple underutilized
servers withheterogeneous software and operating systems (OSes), and its
capability to live-migrate afully operating virtual machine (VM) with a
very short downtime, enables novel and dynamicways to manage physical
servers; OS-level virtualization (i.e., containerization), with
itscapability to isolate multiple user-space environments and to allow for
their coexistencewithin the same OS kernel, promises to provide many of
the advantages of machine virtualization with high levels of responsiveness
and performance; I/O Virtualization allows physical network interfaces to
take traffic from multiple VMs or containers; network virtualization, with
its capability to create logical network overlays that are independent of
theunderlying physical topology is furthermore enabling virtualization of
HPC infrastructures. PublicationAccepted papers will be published in a
Springer LNCS proceedings volume.Topics of InterestThe VHPC program
committee solicits original, high-quality submissions related
tovirtualization across the entire software stack with a special focus on
the intersection of HPCand the cloud.Major Topics- Virtualization in
supercomputing environments, HPC clusters, HPC in the cloud and grids-
OS-level virtualization and containers (LXC, Docker, rkt, Singularity,
Shifter, i.a.)- Lightweight/specialized operating systems in conjunction
with virtual machines- Novel unikernels and use cases for virtualized HPC
environments- Performance improvements for or driven by unikernels- Tool
support for unikernels: configuration/build environments, debuggers,
profilers- Hypervisor extensions to mitigate side-channel attacks
([micro-]architectural timing attacks, privilege escalation)- VM &
Container trust and security- Containers inside VMs with hypervisor
isolation- GPU virtualization operationalization- Approaches to GPGPU
virtualization including API remoting and hypervisor abstraction-
Optimizations of virtual machine monitor platforms and hypervisors-
Hypervisor support for heterogeneous resources (GPUs, co-processors, FPGAs,
etc.)- Virtualization support for emerging memory technologies-
Virtualization in enterprise HPC and microvisors- Software defined networks
and network virtualization- Management, deployment of virtualized
environments and orchestration (Kubernetes i.a.)- Workflow-pipeline
container-based composability - Checkpointing facilitation utilizing
containers and VMs - Emerging topics including multi-kernel approaches and
NUMA in hypervisors- Operating MPI in containers/VMs and Unikernels -
Virtualization in data intensive computing (big data) - HPC convergence-
Adaptation of HPC technologies in the cloud (high performance networks,
RDMA, etc.)- Performance measurement, modelling and monitoring of
virtualized/cloud workloads- Latency-and jitter sensitive workloads in
virtualized/containerized environments- I/O virtualization (including
applications, SR-IOV, i.a.) - Hybrid local facility + cloud compute and
based storage systems, cloudbursting- FPGA and many-core accelerator
virtualization- Job scheduling/control/policy and container placement in
virtualized environments- Cloud reliability, fault-tolerance and
high-availability- QoS and SLA in virtualized environments- IaaS platforms,
cloud frameworks and APIs- Energy-efficient and power-aware virtualization-
Configuration management tools for containers (including in OpenStack,
Ansible, i.a.)- ARM-based hypervisors, ARM virtualization extensionsSpecial
Track: GPU - Accelerator VirtualizationGPU virtualization technologies,
performance and benchmarking, integration withworkflow scheduling systems,
integration to cluster managers.GPUs are taking on many HPC workload areas,
especially in deep learning withinmachine learning. In addition, a lot of
workload is being pushed to elastic environments utilizing various
virtualization technologies on different levels like hypervisors (e.g.
VMWare, Xen, KVM), kernel (Docker, Kubernetes) or on the resource
managerlevel (YARN, Mesos). In this track we invite submissions addressing
these problems. Suggested Themes and Topics:Technology - What technologies
and best practices exist for GPU - hardware accelerator virtualization and
usage of hardware accelerators in virtual environments on the hypervisor,
kernel or resource manager levelDevelopers - Real-life experience when
addressing HPC/ML/DL problems with GPUs or hardware accelerators in virtual
environmentsPerformance - Performance comparisons between different
technologies / solutionsThe Workshop on Virtualization in High-Performance
Cloud Computing (VHPC) aims tobring together researchers and industrial
practitioners facing the challenges posed by virtualization in order to
foster discussion, collaboration, mutual exchangeof knowledge and
experience, enabling research to ultimately provide novelsolutions for
virtualized computing systems of tomorrow.The workshop will be one day in
length, composed of 20 min paper presentations, eachfollowed by 10 min
discussion sections, plus lightning talks that are limited to 5
minutes.Presentations may be accompanied by interactive
demonstrations.Important DatesFebruary 23, 2018 (AoE) - Abstract
SubmissionApril 23, 2018 (AoE) - Paper submission deadline (Springer
LNCS)May 30, 2018 - Acceptance notification June 28, 2018 - Workshop
DayJuly 12, 2018 - Camera-ready version dueChairMichael Alexander (chair),
Institute of Science and Technology, AustriaAnastassios Nanos (co-chair),
OnApp, UKRomeo Kienzler (co-chair), IBM, SwitzerlandProgram
committeeStergios Anastasiadis, University of Ioannina, Greece Jakob
Blomer, CERN, Europe Eduardo César, Universidad Autonoma de Barcelona,
SpainStephen Crago, USC ISI, USATommaso Cucinotta, St. Anna School of
Advanced Studies, ItalyChristoffer Dall, Columbia University, USAFrançois
Diakhaté, CEA, FrancePatrick Dreher, MIT, USA Kyle Hale, Northwestern
University, USA Brian Kocoloski, University of Pittsburgh, USAUday Kurkure,
VMware, USAJohn Lange, University of Pittsburgh, USAGiuseppe Lettieri,
University of Pisa, ItalyQing Liu, Oak Ridge National Laboratory, USANikos
Parlavantzas, IRISA, FranceKevin Pedretti, Sandia National Laboratories,
USAAmer Qouneh, Western New England University, USA Carlos Reaño, Technical
University of Valencia, SpainBorja Sotomayor, University of Chicago, USA
Anata Tiwari, San Diego Supercomputer Center, USAKurt Tutschku, Blekinge
Institute of Technology, Sweden Yasuhiro Watashiba, Osaka University,
JapanChao-Tung Yang, Tunghai University, Taiwan Andrew Younge, Sandia
National Laboratory, USANa Zhang, VMware, USAPaper
Submission-PublicationPapers submitted to the workshop will be reviewed by
at least twomembers of the program committee and external reviewers.
Submissionsshould include abstract, keywords, the e-mail address of
thecorresponding author, and must not exceed 10 pages, including tablesand
figures at a main font size no smaller than 11 point. Submissionof a paper
should be regarded as a commitment that, should the paperbe accepted, at
least one of the authors will register and attend theconference to present
the work. Accepted papers will be published in aSpringer LNCS volume. . The
format must be according to the Springer LNCS Style. Initialsubmissions are
in PDF; authors of accepted papers will be requestedto provide source
files.Format
Guidelines:ftp://ftp.springer.de/pub/tex/latex/llncs/latex2e/llncs2e.zip
<ftp://ftp.springer.de/pub/tex/latex/llncs/latex2e/llncs2e.zip>Abstract,
Paper Submission Link:https://edas.info/newPaper.php?c=24355
<https://edas.info/newPaper.php?c=24355>Lightning Talks Lightning Talks are
non-paper track, synoptical in nature and are strictly limited to 5
minutes.They can be used to gain early feedback on ongoing research, for
demonstrations, to present research results, early research ideas,
perspectives and positions of interest to the community. Submit abstract
via the main submission link. General InformationThe workshop is one day in
length and will be held in conjunction with the InternationalSupercomputing
Conference - High Performance (ISC) 2018, June 18-22, Frankfurt, Germany.*
6 years, 10 months
[libvirt-users] libvirt on Windows
by Robin Stegk
Hello,
i am interested in developing against the libvirt library. But we would also need an actively developed version for Windows.
The links I found on the website for Windows related builds are all pretty outdated and do not really work for me.
* https://github.com/SPICE/virt-viewer Last commit 2 years ago
* https://github.com/photron/msys_setup Last commit 5 years ago
So before getting invested too much, I wanted to ask how is the situation with Windows builds? Is libvirt focused on linux only for now, or do I just need to look somewhat better?
Maybe the cross compiling is working? (I didn't try that for now, because I would need to set up a Fedora maschine).
With kind regards / Mit besten Grüßen
Robin Stegk
Software Engineer
--
Paessler AG - The Network Monitoring Company
Thurn-und-Taxis-Straße 14, 90411 Nürnberg, Deutschland
Telefon: +49 911 93775-0 - Fax: +49 911 93775-409
https://www.de.paessler.com
------------------------------------------------------------------------------------------
Mehr als 200.000 IT-Administratoren weltweit vertrauen auf PRTG
------------------------------------------------------------------------------------------
Vorstand: Dr. Marc Rössel, Christian Twardawa
Aufsichtsratsvorsitzender: Dr. Heinz Raufer
Eintragung: Amtsgericht Nürnberg HRB 23757
6 years, 10 months
[libvirt-users] libvirtd hangs
by Artem Likhachev
Hello everybody!
We have a cluster of servers managed by VMmanager 5 KVM (by ispsystem).
A typical node:
# cat /etc/redhat-release
CentOS Linux release 7.3.1611 (Core)
# uname -r
3.10.0-693.11.6.el7.x86_64
# rpm -qa |grep libvirt
libvirt-daemon-driver-qemu-3.7.0-1.el7.centos.x86_64
libvirt-daemon-driver-storage-disk-3.7.0-1.el7.centos.x86_64
libvirt-3.7.0-1.el7.centos.x86_64
libvirt-daemon-driver-storage-core-3.7.0-1.el7.centos.x86_64
libvirt-daemon-driver-nodedev-3.7.0-1.el7.centos.x86_64
libvirt-daemon-driver-lxc-3.7.0-1.el7.centos.x86_64
libvirt-daemon-driver-storage-iscsi-3.7.0-1.el7.centos.x86_64
libvirt-daemon-driver-storage-gluster-3.7.0-1.el7.centos.x86_64
libvirt-daemon-kvm-3.7.0-1.el7.centos.x86_64
libvirt-daemon-driver-network-3.7.0-1.el7.centos.x86_64
libvirt-daemon-driver-interface-3.7.0-1.el7.centos.x86_64
libvirt-daemon-config-network-3.7.0-1.el7.centos.x86_64
libvirt-daemon-driver-storage-rbd-3.7.0-1.el7.centos.x86_64
libvirt-daemon-driver-storage-3.7.0-1.el7.centos.x86_64
libvirt-libs-3.7.0-1.el7.centos.x86_64
libvirt-daemon-driver-nwfilter-3.7.0-1.el7.centos.x86_64
libvirt-daemon-driver-secret-3.7.0-1.el7.centos.x86_64
libvirt-daemon-driver-storage-mpath-3.7.0-1.el7.centos.x86_64
libvirt-daemon-driver-storage-scsi-3.7.0-1.el7.centos.x86_64
libvirt-client-3.7.0-1.el7.centos.x86_64
libvirt-daemon-3.7.0-1.el7.centos.x86_64
libvirt-daemon-config-nwfilter-3.7.0-1.el7.centos.x86_64
libvirt-daemon-driver-storage-logical-3.7.0-1.el7.centos.x86_64
# rpm -qa |grep qemu
qemu-kvm-common-rhev-2.6.0-27.1.el7.centos.maros.x86_64
ipxe-roms-qemu-20160127-5.git6366fa7a.el7.noarch
qemu-img-rhev-2.6.0-27.1.el7.centos.maros.x86_64
qemu-kvm-rhev-2.6.0-27.1.el7.centos.maros.x86_64
# rpm -qa |grep ebtables
ebtables-2.0.10-15.el7.centos.marosnet.x86_64
ebtables build with patch
https://marc.info/?l=netfilter-devel&m=150728694430435 (described at
https://bugzilla.redhat.com/show_bug.cgi?id=1495893)
Sometimes libvirtd just hangs and stops answering for virsh requests
(like `virsh list --all`).
At those moments:
# strace -p 5786
read(53, "\0\0\0\34", 4) = 4
read(53, "keep\0\0\0\1\0\0\0\2\0\0\0\2\0\0\0\0\0\0\0\0", 24) = 24
poll([{fd=5, events=POLLIN}, {fd=7, events=POLLIN}, {fd=12,
events=POLLIN}, {fd=13, events=POLLIN}, {fd=14, events=POLLIN}, {fd=15,
events=POLLIN}, {fd=19, events=POLLIN}, {fd=23,
events=POLLIN|POLLERR|POLLHUP}, {fd=21, events=POLLIN|POLLERR|POLLHUP},
{fd=27, events=POLLIN|POLLERR|POLLHUP}, {fd=25,
events=POLLIN|POLLERR|POLLHUP}, {fd=22, events=POLLIN|POLLERR|POLLHUP},
{fd=24, events=POLLIN|POLLERR|POLLHUP}, {fd=26,
events=POLLIN|POLLERR|POLLHUP}, {fd=29, events=POLLIN|POLLERR|POLLHUP},
{fd=30, events=POLLIN|POLLERR|POLLHUP}, {fd=31,
events=POLLIN|POLLERR|POLLHUP}, {fd=33, events=POLLIN|POLLERR|POLLHUP},
{fd=32, events=POLLIN|POLLERR|POLLHUP}, {fd=36,
events=POLLIN|POLLERR|POLLHUP}, {fd=35, events=POLLIN|POLLERR|POLLHUP},
{fd=39, events=POLLIN|POLLERR|POLLHUP}, {fd=40,
events=POLLIN|POLLERR|POLLHUP}, {fd=41, events=POLLIN|POLLERR|POLLHUP},
{fd=44, events=POLLIN|POLLERR|POLLHUP}, {fd=42,
events=POLLIN|POLLERR|POLLHUP}, {fd=43, events=POLLIN|POLLERR|POLLHUP},
{fd=48, events=POLLIN|POLLERR|POLLHUP}, {fd=49,
events=POLLIN|POLLERR|POLLHUP}, {fd=59, events=POLLIN|POLLERR|POLLHUP},
{fd=46, events=POLLIN|POLLERR|POLLHUP}, {fd=50,
events=POLLIN|POLLERR|POLLHUP}, ...], 43, 5000
# gdb -p 5786
(gdb) thread apply all bt
Thread 17 (Thread 0x7f411a9d7700 (LWP 5788)):
#0 pthread_cond_wait@(a)GLIBC_2.3.2 () at
../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f4129c2a2e6 in virCondWait (c=c@entry=0x7f412b18ebb8,
m=m@entry=0x7f412b18eb90) at util/virthread.c:154
#2 0x00007f4129c2ada3 in virThreadPoolWorker
(opaque=opaque@entry=0x7f412b183ab0) at util/virthreadpool.c:124
#3 0x00007f4129c2a078 in virThreadHelper (data=<optimized out>) at
util/virthread.c:206
#4 0x00007f4127033dc5 in start_thread (arg=0x7f411a9d7700) at
pthread_create.c:308
#5 0x00007f4126d6273d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:113
Thread 16 (Thread 0x7f411a1d6700 (LWP 5789)):
#0 pthread_cond_wait@(a)GLIBC_2.3.2 () at
../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f4129c2a2e6 in virCondWait (c=c@entry=0x7f412b18ebb8,
m=m@entry=0x7f412b18eb90) at util/virthread.c:154
#2 0x00007f4129c2ada3 in virThreadPoolWorker
(opaque=opaque@entry=0x7f412b183a00) at util/virthreadpool.c:124
#3 0x00007f4129c2a078 in virThreadHelper (data=<optimized out>) at
util/virthread.c:206
#4 0x00007f4127033dc5 in start_thread (arg=0x7f411a1d6700) at
pthread_create.c:308
#5 0x00007f4126d6273d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:113
Thread 15 (Thread 0x7f41199d5700 (LWP 5790)):
#0 pthread_cond_wait@(a)GLIBC_2.3.2 () at
../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f4129c2a2e6 in virCondWait (c=c@entry=0x7f412b18ebb8,
m=m@entry=0x7f412b18eb90) at util/virthread.c:154
#2 0x00007f4129c2ada3 in virThreadPoolWorker
(opaque=opaque@entry=0x7f412b183950) at util/virthreadpool.c:124
#3 0x00007f4129c2a078 in virThreadHelper (data=<optimized out>) at
util/virthread.c:206
#4 0x00007f4127033dc5 in start_thread (arg=0x7f41199d5700) at
pthread_create.c:308
#5 0x00007f4126d6273d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:113
Thread 14 (Thread 0x7f41191d4700 (LWP 5791)):
#0 pthread_cond_wait@(a)GLIBC_2.3.2 () at
../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f4129c2a2e6 in virCondWait (c=c@entry=0x7f412b18ebb8,
m=m@entry=0x7f412b18eb90) at util/virthread.c:154
#2 0x00007f4129c2ada3 in virThreadPoolWorker
(opaque=opaque@entry=0x7f412b1838a0) at util/virthreadpool.c:124
#3 0x00007f4129c2a078 in virThreadHelper (data=<optimized out>) at
util/virthread.c:206
#4 0x00007f4127033dc5 in start_thread (arg=0x7f41191d4700) at
pthread_create.c:308
#5 0x00007f4126d6273d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:113
Thread 13 (Thread 0x7f41189d3700 (LWP 5792)):
---Type <return> to continue, or q <return> to quit---
log_level = 3 at /etc/libvirt/libvirtd.conf doesn't help to detect the
problem. Actually, libvirtd continues acting, but is not responding.
It's like waiting for something... may be an answer. No zombieing, no
cpu loading.
This fixes the issue:
rm -f /run/ebtables.lock ; killall -9 virsh; systemctl restart
systemd-{journald,udevd,logind,machined} ; systemctl restart libvirtd
The same situation appears with libvirt-3.2.0-14.el7_4.7.x86_64.
Could anybody help to resolve this situation?
6 years, 10 months