$ virt-manager --debug
[Sun, 27 Feb 2022 17:35:59 virt-manager 7113] DEBUG (cli:204) Launched with command line: /usr/bin/virt-manager --debug
[Sun, 27 Feb 2022 17:35:59 virt-manager 7113] DEBUG (virtmanager:163) virt-manager version: 3.2.0
[Sun, 27 Feb 2022 17:35:59 virt-manager 7113] DEBUG (virtmanager:164) virtManager import: /usr/share/virt-manager/virtManager
[Sun, 27 Feb 2022 17:35:59 virt-manager 7113] DEBUG (virtmanager:201) PyGObject version: 3.42.0
[Sun, 27 Feb 2022 17:35:59 virt-manager 7113] DEBUG (virtmanager:205) GTK version: 3.24.31
[Sun, 27 Feb 2022 17:35:59 virt-manager 7113] DEBUG (systray:463) Showing systray: False
[Sun, 27 Feb 2022 17:35:59 virt-manager 7113] DEBUG (inspection:206) python guestfs is not installed
[Sun, 27 Feb 2022 17:35:59 virt-manager 7113] DEBUG (engine:113) Loading stored URIs:
qemu:///system
[Sun, 27 Feb 2022 17:35:59 virt-manager 7113] DEBUG (engine:461) processing cli command uri= show_window=manager domain=
[Sun, 27 Feb 2022 17:35:59 virt-manager 7113] DEBUG (engine:464) No cli action requested, launching default window
[Sun, 27 Feb 2022 17:35:59 virt-manager 7113] DEBUG (manager:185) Showing manager
[Sun, 27 Feb 2022 17:35:59 virt-manager 7113] DEBUG (engine:316) window counter incremented to 1
[Sun, 27 Feb 2022 17:35:59 virt-manager 7113] DEBUG (engine:211) Initial gtkapplication activated
[Sun, 27 Feb 2022 17:35:59 virt-manager 7113] DEBUG (connection:482) conn=qemu:///system changed to state=Connecting
[Sun, 27 Feb 2022 17:35:59 virt-manager 7113] DEBUG (connection:902) Scheduling background open thread for qemu:///system
[Sun, 27 Feb 2022 17:36:10 virt-manager 7113] DEBUG (connection:952) libvirt version=8000000
[Sun, 27 Feb 2022 17:36:10 virt-manager 7113] DEBUG (connection:953) daemon version=8000000
[Sun, 27 Feb 2022 17:36:11 virt-manager 7113] DEBUG (connection:954) conn version=6002000
[Sun, 27 Feb 2022 17:36:11 virt-manager 7113] DEBUG (connection:955) qemu:///system capabilities:
<capabilities>

  <host>
    <uuid>d9c28570-a020-0000-0000-000000000000</uuid>
    <cpu>
      <arch>x86_64</arch>
      <model>EPYC-Rome</model>
      <vendor>AMD</vendor>
      <microcode version="141561889"/>
      <counter name="tsc" frequency="3593248000" scaling="yes"/>
      <topology sockets="1" dies="1" cores="6" threads="2"/>
      <feature name="ht"/>
      <feature name="monitor"/>
      <feature name="osxsave"/>
      <feature name="cmt"/>
      <feature name="xsaves"/>
      <feature name="mbm_total"/>
      <feature name="mbm_local"/>
      <feature name="cmp_legacy"/>
      <feature name="extapic"/>
      <feature name="ibs"/>
      <feature name="skinit"/>
      <feature name="wdt"/>
      <feature name="tce"/>
      <feature name="topoext"/>
      <feature name="perfctr_nb"/>
      <feature name="invtsc"/>
      <feature name="amd-ssbd"/>
      <feature name="lbrv"/>
      <feature name="svm-lock"/>
      <feature name="tsc-scale"/>
      <feature name="vmcb-clean"/>
      <feature name="flushbyasid"/>
      <feature name="decodeassists"/>
      <feature name="pause-filter"/>
      <feature name="pfthreshold"/>
      <pages unit="KiB" size="4"/>
      <pages unit="KiB" size="2048"/>
      <pages unit="KiB" size="1048576"/>
    </cpu>
    <power_management>
      <suspend_mem/>
      <suspend_disk/>
      <suspend_hybrid/>
    </power_management>
    <iommu support="yes"/>
    <migration_features>
      <live/>
      <uri_transports>
        <uri_transport>tcp</uri_transport>
        <uri_transport>rdma</uri_transport>
      </uri_transports>
    </migration_features>
    <topology>
      <cells num="1">
        <cell id="0">
          <memory unit="KiB">32866080</memory>
          <pages unit="KiB" size="4">8216520</pages>
          <pages unit="KiB" size="2048">0</pages>
          <pages unit="KiB" size="1048576">0</pages>
          <distances>
            <sibling id="0" value="10"/>
          </distances>
          <cpus num="12">
            <cpu id="0" socket_id="0" die_id="0" core_id="0" siblings="0,6"/>
            <cpu id="1" socket_id="0" die_id="0" core_id="1" siblings="1,7"/>
            <cpu id="2" socket_id="0" die_id="0" core_id="2" siblings="2,8"/>
            <cpu id="3" socket_id="0" die_id="0" core_id="4" siblings="3,9"/>
            <cpu id="4" socket_id="0" die_id="0" core_id="5" siblings="4,10"/>
            <cpu id="5" socket_id="0" die_id="0" core_id="6" siblings="5,11"/>
            <cpu id="6" socket_id="0" die_id="0" core_id="0" siblings="0,6"/>
            <cpu id="7" socket_id="0" die_id="0" core_id="1" siblings="1,7"/>
            <cpu id="8" socket_id="0" die_id="0" core_id="2" siblings="2,8"/>
            <cpu id="9" socket_id="0" die_id="0" core_id="4" siblings="3,9"/>
            <cpu id="10" socket_id="0" die_id="0" core_id="5" siblings="4,10"/>
            <cpu id="11" socket_id="0" die_id="0" core_id="6" siblings="5,11"/>
          </cpus>
        </cell>
      </cells>
    </topology>
    <cache>
      <bank id="0" level="3" type="both" size="16" unit="MiB" cpus="0-2,6-8"/>
      <bank id="1" level="3" type="both" size="16" unit="MiB" cpus="3-5,9-11"/>
    </cache>
    <secmodel>
      <model>none</model>
      <doi>0</doi>
    </secmodel>
    <secmodel>
      <model>dac</model>
      <doi>0</doi>
      <baselabel type="kvm">+0:+0</baselabel>
      <baselabel type="qemu">+0:+0</baselabel>
    </secmodel>
  </host>

  <guest>
    <os_type>hvm</os_type>
    <arch name="i686">
      <wordsize>32</wordsize>
      <emulator>/usr/bin/qemu-system-i386</emulator>
      <machine maxCpus="255">pc-i440fx-6.2</machine>
      <machine canonical="pc-i440fx-6.2" maxCpus="255">pc</machine>
      <machine maxCpus="288">pc-q35-5.2</machine>
      <machine maxCpus="255">pc-i440fx-2.12</machine>
      <machine maxCpus="255">pc-i440fx-2.0</machine>
      <machine maxCpus="288">pc-q35-4.2</machine>
      <machine maxCpus="255">pc-i440fx-2.5</machine>
      <machine maxCpus="255">pc-i440fx-4.2</machine>
      <machine maxCpus="255">pc-i440fx-5.2</machine>
      <machine maxCpus="255">pc-i440fx-1.5</machine>
      <machine maxCpus="255">pc-q35-2.7</machine>
      <machine maxCpus="255">pc-i440fx-2.2</machine>
      <machine maxCpus="255">pc-i440fx-2.7</machine>
      <machine maxCpus="288">pc-q35-6.1</machine>
      <machine maxCpus="255">pc-q35-2.4</machine>
      <machine maxCpus="288">pc-q35-2.10</machine>
      <machine maxCpus="1">x-remote</machine>
      <machine maxCpus="288">pc-q35-5.1</machine>
      <machine maxCpus="255">pc-i440fx-1.7</machine>
      <machine maxCpus="288">pc-q35-2.9</machine>
      <machine maxCpus="255">pc-i440fx-2.11</machine>
      <machine maxCpus="288">pc-q35-3.1</machine>
      <machine maxCpus="255">pc-i440fx-6.1</machine>
      <machine maxCpus="288">pc-q35-4.1</machine>
      <machine maxCpus="255">pc-i440fx-2.4</machine>
      <machine maxCpus="255">pc-i440fx-4.1</machine>
      <machine maxCpus="255">pc-i440fx-5.1</machine>
      <machine maxCpus="255">pc-i440fx-2.9</machine>
      <machine maxCpus="1">isapc</machine>
      <machine maxCpus="255">pc-i440fx-1.4</machine>
      <machine maxCpus="255">pc-q35-2.6</machine>
      <machine maxCpus="255">pc-i440fx-3.1</machine>
      <machine maxCpus="288">pc-q35-2.12</machine>
      <machine maxCpus="255">pc-i440fx-2.1</machine>
      <machine maxCpus="288">pc-q35-6.0</machine>
      <machine maxCpus="255">pc-i440fx-2.6</machine>
      <machine maxCpus="288">pc-q35-4.0.1</machine>
      <machine maxCpus="255">pc-i440fx-1.6</machine>
      <machine maxCpus="288">pc-q35-5.0</machine>
      <machine maxCpus="288">pc-q35-2.8</machine>
      <machine maxCpus="255">pc-i440fx-2.10</machine>
      <machine maxCpus="288">pc-q35-3.0</machine>
      <machine maxCpus="255">pc-i440fx-6.0</machine>
      <machine maxCpus="288">pc-q35-4.0</machine>
      <machine maxCpus="288">microvm</machine>
      <machine maxCpus="255">pc-i440fx-2.3</machine>
      <machine maxCpus="255">pc-i440fx-4.0</machine>
      <machine maxCpus="255">pc-i440fx-5.0</machine>
      <machine maxCpus="255">pc-i440fx-2.8</machine>
      <machine maxCpus="288">pc-q35-6.2</machine>
      <machine canonical="pc-q35-6.2" maxCpus="288">q35</machine>
      <machine maxCpus="255">pc-q35-2.5</machine>
      <machine maxCpus="255">pc-i440fx-3.0</machine>
      <machine maxCpus="288">pc-q35-2.11</machine>
      <domain type="qemu"/>
      <domain type="kvm"/>
    </arch>
    <features>
      <pae/>
      <nonpae/>
      <acpi default="on" toggle="yes"/>
      <apic default="on" toggle="no"/>
      <cpuselection/>
      <deviceboot/>
      <disksnapshot default="on" toggle="no"/>
    </features>
  </guest>

  <guest>
    <os_type>hvm</os_type>
    <arch name="x86_64">
      <wordsize>64</wordsize>
      <emulator>/usr/bin/qemu-system-x86_64</emulator>
      <machine maxCpus="255">pc-i440fx-6.2</machine>
      <machine canonical="pc-i440fx-6.2" maxCpus="255">pc</machine>
      <machine maxCpus="288">pc-q35-5.2</machine>
      <machine maxCpus="255">pc-i440fx-2.12</machine>
      <machine maxCpus="255">pc-i440fx-2.0</machine>
      <machine maxCpus="288">pc-q35-4.2</machine>
      <machine maxCpus="255">pc-i440fx-2.5</machine>
      <machine maxCpus="255">pc-i440fx-4.2</machine>
      <machine maxCpus="255">pc-i440fx-5.2</machine>
      <machine maxCpus="255">pc-i440fx-1.5</machine>
      <machine maxCpus="255">pc-q35-2.7</machine>
      <machine maxCpus="255">pc-i440fx-2.2</machine>
      <machine maxCpus="255">pc-i440fx-2.7</machine>
      <machine maxCpus="288">pc-q35-6.1</machine>
      <machine maxCpus="255">pc-q35-2.4</machine>
      <machine maxCpus="288">pc-q35-2.10</machine>
      <machine maxCpus="1">x-remote</machine>
      <machine maxCpus="288">pc-q35-5.1</machine>
      <machine maxCpus="255">pc-i440fx-1.7</machine>
      <machine maxCpus="288">pc-q35-2.9</machine>
      <machine maxCpus="255">pc-i440fx-2.11</machine>
      <machine maxCpus="288">pc-q35-3.1</machine>
      <machine maxCpus="255">pc-i440fx-6.1</machine>
      <machine maxCpus="288">pc-q35-4.1</machine>
      <machine maxCpus="255">pc-i440fx-2.4</machine>
      <machine maxCpus="255">pc-i440fx-4.1</machine>
      <machine maxCpus="255">pc-i440fx-5.1</machine>
      <machine maxCpus="255">pc-i440fx-2.9</machine>
      <machine maxCpus="1">isapc</machine>
      <machine maxCpus="255">pc-i440fx-1.4</machine>
      <machine maxCpus="255">pc-q35-2.6</machine>
      <machine maxCpus="255">pc-i440fx-3.1</machine>
      <machine maxCpus="288">pc-q35-2.12</machine>
      <machine maxCpus="255">pc-i440fx-2.1</machine>
      <machine maxCpus="288">pc-q35-6.0</machine>
      <machine maxCpus="255">pc-i440fx-2.6</machine>
      <machine maxCpus="288">pc-q35-4.0.1</machine>
      <machine maxCpus="255">pc-i440fx-1.6</machine>
      <machine maxCpus="288">pc-q35-5.0</machine>
      <machine maxCpus="288">pc-q35-2.8</machine>
      <machine maxCpus="255">pc-i440fx-2.10</machine>
      <machine maxCpus="288">pc-q35-3.0</machine>
      <machine maxCpus="255">pc-i440fx-6.0</machine>
      <machine maxCpus="288">pc-q35-4.0</machine>
      <machine maxCpus="288">microvm</machine>
      <machine maxCpus="255">pc-i440fx-2.3</machine>
      <machine maxCpus="255">pc-i440fx-4.0</machine>
      <machine maxCpus="255">pc-i440fx-5.0</machine>
      <machine maxCpus="255">pc-i440fx-2.8</machine>
      <machine maxCpus="288">pc-q35-6.2</machine>
      <machine canonical="pc-q35-6.2" maxCpus="288">q35</machine>
      <machine maxCpus="255">pc-q35-2.5</machine>
      <machine maxCpus="255">pc-i440fx-3.0</machine>
      <machine maxCpus="288">pc-q35-2.11</machine>
      <domain type="qemu"/>
      <domain type="kvm"/>
    </arch>
    <features>
      <acpi default="on" toggle="yes"/>
      <apic default="on" toggle="no"/>
      <cpuselection/>
      <deviceboot/>
      <disksnapshot default="on" toggle="no"/>
    </features>
  </guest>

</capabilities>

[Sun, 27 Feb 2022 17:36:11 virt-manager 7113] DEBUG (connection:739) Using domain events
[Sun, 27 Feb 2022 17:36:11 virt-manager 7113] DEBUG (connection:777) Using network events
[Sun, 27 Feb 2022 17:36:11 virt-manager 7113] DEBUG (connection:796) Using storage pool events
[Sun, 27 Feb 2022 17:36:11 virt-manager 7113] DEBUG (connection:821) Using node device events
[Sun, 27 Feb 2022 17:36:11 virt-manager 7113] DEBUG (connection:691) storage pool refresh event: pool=default
[Sun, 27 Feb 2022 17:36:11 virt-manager 7113] DEBUG (connection:1076) network=default status=Active added
[Sun, 27 Feb 2022 17:36:11 virt-manager 7113] DEBUG (connection:1076) pool=default status=Active added
[Sun, 27 Feb 2022 17:36:11 virt-manager 7113] DEBUG (storage:139) Found default pool name=default target=/var/lib/libvirt/images
[Sun, 27 Feb 2022 17:36:11 virt-manager 7113] DEBUG (connection:482) conn=qemu:///system changed to state=Active
[Sun, 27 Feb 2022 17:36:18 virt-manager 7113] DEBUG (createconn:91) Showing open connection
[Sun, 27 Feb 2022 17:36:28 virt-manager 7113] DEBUG (createconn:81) Cancelling open connection
[Sun, 27 Feb 2022 17:36:28 virt-manager 7113] DEBUG (createconn:86) Closing open connection
[Sun, 27 Feb 2022 17:36:41 virt-manager 7113] DEBUG (createconn:91) Showing open connection
[Sun, 27 Feb 2022 17:36:57 virt-manager 7113] DEBUG (createconn:81) Cancelling open connection
[Sun, 27 Feb 2022 17:36:57 virt-manager 7113] DEBUG (createconn:86) Closing open connection
[Sun, 27 Feb 2022 17:36:58 virt-manager 7113] DEBUG (manager:196) Closing manager
[Sun, 27 Feb 2022 17:36:58 virt-manager 7113] DEBUG (engine:323) window counter decremented to 0
[Sun, 27 Feb 2022 17:36:58 virt-manager 7113] DEBUG (engine:343) No windows found, requesting app exit
[Sun, 27 Feb 2022 17:36:58 virt-manager 7113] DEBUG (connection:837) conn.close() uri=qemu:///system
[Sun, 27 Feb 2022 17:36:58 virt-manager 7113] DEBUG (connection:482) conn=qemu:///system changed to state=Disconnected
[Sun, 27 Feb 2022 17:36:58 virt-manager 7113] DEBUG (createconn:86) Closing open connection
[Sun, 27 Feb 2022 17:36:58 virt-manager 7113] DEBUG (engine:369) Exiting app normally.
[ben79@Lx43-64-598 ~]$