Hi,
I have setup virt-manager to have some fun with virtual machines but regularly the program crashes. I can’t find out why that is. I have 3 VM’s of which I just run one at the time, crashes happen in all of them.
The VM runs and suddenly it is gone from my screen. In the KDE taskbar I still see 2 icons, one for the program virt-manager and one for the VM itself. When I click on the virt-manager icon I see the VM is still running, I just have to re-open the screen for it.
Who also faces this problem? Any idea what might cause it?
I use Fedora 39 KDE, fully up-to-date. I have a VM with Fedora 39 KDE upgraded to 40, I have one with openSUSE Tumbleweed and one with openSUSE Slowroll. As said, all these VM’s have this problem so I guess it is not the VM but the manager.
VM settings: 6 out of 16 cores, 8 out of 16GB of ram, 40GB disk, and as said: one VM at the time.
Where should I look for an error message?
Thanks.
I would suggest using journalctl on the host and search the appropriate time period where the VM screen disappears. There may be something there to indicate what is happening. You said the only requirement is to reopen the screen so the VM is not crashing, nor does the manager appear to be crashing – only the virtual console window.
Which virtual video driver is in use? QXL, Virtio, or ?
Which display driver is in use? Spice or VNC
On most of my VMs I use QXL + Spice.
I have never seen that behavior, but I also use gnome and not kde.
Hello Jeff, thank you for your answer. I have been looking around in journalctl and I found some things which look strange to me, but maybe it is something which is perfectly okay. I had sent the output of journalctl to a txt file hoping I could add it here, but I see no way how to do that.
Something strange is happening with libvirtd: I can start it but after a short time it is stopped again. When I start it other daemons stop and the connection between host and guest is gone for a short time. The guest keeps on running though, I just have to restore the window in which it is running.
Here are some parts of the journalctl output: (sorry it is so long)
Mar 16 18:43:00 Fedora systemd[1]: Starting libvirtd.service - Virtualization daemon...
Mar 16 18:43:00 Fedora systemd[1]: Stopping virtnetworkd.service - Virtualization network daemon...
Mar 16 18:43:00 Fedora systemd[1]: Stopping virtnodedevd.service - Virtualization nodedev daemon...
Mar 16 18:43:00 Fedora systemd[1]: Stopping virtqemud.service - Virtualization qemu daemon...
Mar 16 18:43:00 Fedora systemd[1]: Stopping virtstoraged.service - Virtualization storage daemon...
Mar 16 18:43:00 Fedora virtqemud[120874]: libvirt version: 9.7.0, package: 2.fc39 (Fedora Project, 2024-01-03-22:32:21, )
Mar 16 18:43:00 Fedora virtqemud[120874]: hostname: Fedora
Mar 16 18:43:00 Fedora virtqemud[120874]: Cannot write data: Broken pipe
Mar 16 18:43:00 Fedora virtqemud[120874]: unexpected network event deregister failure
Mar 16 18:43:00 Fedora virtqemud[120874]: Cannot write data: Broken pipe
Mar 16 18:43:00 Fedora virtqemud[120874]: unexpected storage event deregister failure
Mar 16 18:43:00 Fedora virtqemud[120874]: internal error: client socket is closed
Mar 16 18:43:00 Fedora virtqemud[120874]: unexpected storage event deregister failure
Mar 16 18:43:00 Fedora virtqemud[120874]: Cannot write data: Broken pipe
Mar 16 18:43:00 Fedora virtqemud[120874]: unexpected node device event deregister failure
Mar 16 18:43:00 Fedora virtqemud[120874]: internal error: client socket is closed
Mar 16 18:43:00 Fedora virtqemud[120874]: unexpected node device event deregister failure
Mar 16 18:43:00 Fedora virtqemud[120874]: internal error: client socket is closed
Mar 16 18:43:00 Fedora virtqemud[120874]: internal error: client socket is closed
Mar 16 18:43:00 Fedora virtqemud[120874]: internal error: client socket is closed
Mar 16 18:43:00 Fedora systemd[1]: virtnetworkd.service: Deactivated successfully.
Mar 16 18:43:00 Fedora systemd[1]: virtnetworkd.service: Unit process 33033 (dnsmasq) remains running after unit stopped.
Mar 16 18:43:00 Fedora systemd[1]: virtnetworkd.service: Unit process 33034 (dnsmasq) remains running after unit stopped.
Mar 16 18:43:00 Fedora systemd[1]: Stopped virtnetworkd.service - Virtualization network daemon.
Mar 16 18:43:00 Fedora audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=virtnetworkd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 16 18:43:00 Fedora systemd[1]: virtqemud.service: Deactivated successfully.
Mar 16 18:43:00 Fedora systemd[1]: Stopped virtqemud.service - Virtualization qemu daemon.
Mar 16 18:43:00 Fedora audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=virtqemud comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 16 18:43:00 Fedora systemd[1]: virtstoraged.service: Deactivated successfully.
Mar 16 18:43:00 Fedora systemd[1]: Stopped virtstoraged.service - Virtualization storage daemon.
Mar 16 18:43:00 Fedora audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=virtstoraged comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 16 18:43:00 Fedora systemd[1]: virtnodedevd.service: Deactivated successfully.
Mar 16 18:43:00 Fedora systemd[1]: Stopped virtnodedevd.service - Virtualization nodedev daemon.
Mar 16 18:43:00 Fedora audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=virtnodedevd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 16 18:43:00 Fedora systemd[1]: Started libvirtd.service - Virtualization daemon.
Mar 16 18:43:00 Fedora audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=libvirtd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 16 18:43:00 Fedora sudo[136569]: pam_unix(sudo:session): session closed for user root
Mar 16 18:43:00 Fedora audit[136569]: USER_END pid=136569 uid=1000 auid=1000 ses=3 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='op=PAM:session_close grantors=pam_keyinit,pam_limits,pam_keyinit,pam_limits,pam_systemd,pam_unix acct="root" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/1 res=success'
Mar 16 18:43:00 Fedora audit[136569]: CRED_DISP pid=136569 uid=1000 auid=1000 ses=3 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='op=PAM:setcred grantors=pam_env,pam_fprintd acct="root" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/1 res=success'
Mar 16 18:43:00 Fedora audit[136611]: NETFILTER_CFG table=mangle:131 family=2 entries=1 op=nft_unregister_rule pid=136611 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136612]: NETFILTER_CFG table=nat:132 family=2 entries=1 op=nft_unregister_rule pid=136612 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136614]: NETFILTER_CFG table=nat:133 family=2 entries=1 op=nft_unregister_rule pid=136614 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136615]: NETFILTER_CFG table=nat:134 family=2 entries=1 op=nft_unregister_rule pid=136615 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136616]: NETFILTER_CFG table=nat:135 family=2 entries=1 op=nft_unregister_rule pid=136616 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136617]: NETFILTER_CFG table=nat:136 family=2 entries=1 op=nft_unregister_rule pid=136617 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136618]: NETFILTER_CFG table=filter:137 family=2 entries=1 op=nft_unregister_rule pid=136618 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136619]: NETFILTER_CFG table=filter:138 family=2 entries=1 op=nft_unregister_rule pid=136619 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136620]: NETFILTER_CFG table=filter:139 family=2 entries=1 op=nft_unregister_rule pid=136620 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136621]: NETFILTER_CFG table=filter:140 family=2 entries=1 op=nft_unregister_rule pid=136621 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136622]: NETFILTER_CFG table=filter:141 family=2 entries=1 op=nft_unregister_rule pid=136622 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136623]: NETFILTER_CFG table=filter:142 family=2 entries=1 op=nft_unregister_rule pid=136623 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136624]: NETFILTER_CFG table=filter:143 family=2 entries=1 op=nft_unregister_rule pid=136624 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136625]: NETFILTER_CFG table=filter:144 family=2 entries=1 op=nft_unregister_rule pid=136625 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136626]: NETFILTER_CFG table=filter:145 family=2 entries=1 op=nft_unregister_rule pid=136626 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136627]: NETFILTER_CFG table=filter:146 family=2 entries=1 op=nft_unregister_rule pid=136627 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136628]: NETFILTER_CFG table=filter:147 family=2 entries=1 op=nft_unregister_rule pid=136628 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136629]: NETFILTER_CFG table=filter:148 family=2 entries=1 op=nft_unregister_rule pid=136629 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136630]: NETFILTER_CFG table=filter:149 family=2 entries=1 op=nft_unregister_rule pid=136630 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136631]: NETFILTER_CFG table=filter:150 family=2 entries=1 op=nft_register_rule pid=136631 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136632]: NETFILTER_CFG table=filter:151 family=2 entries=1 op=nft_register_rule pid=136632 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136633]: NETFILTER_CFG table=filter:152 family=2 entries=1 op=nft_register_rule pid=136633 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136634]: NETFILTER_CFG table=filter:153 family=2 entries=1 op=nft_register_rule pid=136634 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136635]: NETFILTER_CFG table=filter:154 family=2 entries=1 op=nft_register_rule pid=136635 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136636]: NETFILTER_CFG table=filter:155 family=2 entries=1 op=nft_register_rule pid=136636 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136637]: NETFILTER_CFG table=filter:156 family=2 entries=1 op=nft_register_rule pid=136637 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136638]: NETFILTER_CFG table=filter:157 family=2 entries=1 op=nft_register_rule pid=136638 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136639]: NETFILTER_CFG table=filter:158 family=2 entries=1 op=nft_register_rule pid=136639 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136640]: NETFILTER_CFG table=filter:159 family=2 entries=1 op=nft_register_rule pid=136640 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136641]: NETFILTER_CFG table=filter:160 family=2 entries=1 op=nft_register_rule pid=136641 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136642]: NETFILTER_CFG table=filter:161 family=2 entries=1 op=nft_register_rule pid=136642 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136643]: NETFILTER_CFG table=filter:162 family=2 entries=1 op=nft_register_rule pid=136643 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136644]: NETFILTER_CFG table=nat:163 family=2 entries=1 op=nft_register_rule pid=136644 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136645]: NETFILTER_CFG table=nat:164 family=2 entries=1 op=nft_register_rule pid=136645 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136646]: NETFILTER_CFG table=nat:165 family=2 entries=1 op=nft_register_rule pid=136646 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136647]: NETFILTER_CFG table=nat:166 family=2 entries=1 op=nft_register_rule pid=136647 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136648]: NETFILTER_CFG table=nat:167 family=2 entries=1 op=nft_register_rule pid=136648 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora audit[136649]: NETFILTER_CFG table=mangle:168 family=2 entries=1 op=nft_register_rule pid=136649 subj=system_u:system_r:iptables_t:s0-s0:c0.c1023 comm="iptables"
Mar 16 18:43:00 Fedora dnsmasq[33033]: read /etc/hosts - 8 names
Mar 16 18:43:00 Fedora dnsmasq[33033]: read /var/lib/libvirt/dnsmasq/default.addnhosts - 0 names
Mar 16 18:43:00 Fedora dnsmasq-dhcp[33033]: read /var/lib/libvirt/dnsmasq/default.hostsfile
Mar 16 18:43:00 Fedora audit[136653]: AVC avc: denied { map } for pid=136653 comm="dmidecode" path="/etc/ld.so.cache" dev="nvme0n1p3" ino=1442324 scontext=system_u:system_r:dmidecode_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:etc_t:s0 tclass=file permissive=0
Mar 16 18:43:04 Fedora audit[136967]: USER_ACCT pid=136967 uid=1000 auid=1000 ses=3 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='op=PAM:accounting grantors=pam_unix,pam_localuser acct="jan" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/1 res=success'
Mar 16 18:43:04 Fedora audit[136967]: USER_CMD pid=136967 uid=1000 auid=1000 ses=3 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='cwd="/home/jan" cmd=73797374656D63746C20737461747573206C69627669727464 exe="/usr/bin/sudo" terminal=pts/1 res=success'
Mar 16 18:43:04 Fedora sudo[136967]: jan : TTY=pts/1 ; PWD=/home/jan ; USER=root ; COMMAND=/usr/bin/systemctl status libvirtd
Mar 16 18:43:04 Fedora audit[136967]: CRED_REFR pid=136967 uid=1000 auid=1000 ses=3 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='op=PAM:setcred grantors=pam_env,pam_fprintd acct="root" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/1 res=success'
Mar 16 18:43:04 Fedora sudo[136967]: pam_unix(sudo:session): session opened for user root(uid=0) by jan(uid=1000)
Mar 16 18:43:04 Fedora audit[136967]: USER_START pid=136967 uid=1000 auid=1000 ses=3 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='op=PAM:session_open grantors=pam_keyinit,pam_limits,pam_keyinit,pam_limits,pam_systemd,pam_unix acct="root" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/1 res=success'
Mar 16 18:43:04 Fedora sudo[136967]: pam_unix(sudo:session): session closed for user root
Mar 16 18:43:04 Fedora audit[136967]: USER_END pid=136967 uid=1000 auid=1000 ses=3 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='op=PAM:session_close grantors=pam_keyinit,pam_limits,pam_keyinit,pam_limits,pam_systemd,pam_unix acct="root" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/1 res=success'
Mar 16 18:43:04 Fedora audit[136967]: CRED_DISP pid=136967 uid=1000 auid=1000 ses=3 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='op=PAM:setcred grantors=pam_env,pam_fprintd acct="root" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/1 res=success'
Mar 16 18:43:14 Fedora systemd[1]: Stopping libvirtd.service - Virtualization daemon...
Mar 16 18:43:14 Fedora systemd[1]: Starting virtqemud.service - Virtualization qemu daemon...
Mar 16 18:43:14 Fedora systemd[1]: libvirtd.service: Deactivated successfully.
Mar 16 18:43:14 Fedora systemd[1]: Stopped libvirtd.service - Virtualization daemon.
Mar 16 18:43:14 Fedora audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=libvirtd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 16 18:43:14 Fedora systemd[1]: Started virtqemud.service - Virtualization qemu daemon.
Mar 16 18:43:14 Fedora audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=virtqemud comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 16 18:43:14 Fedora audit[137761]: AVC avc: denied { map } for pid=137761 comm="dmidecode" path="/etc/ld.so.cache" dev="nvme0n1p3" ino=1442324 scontext=system_u:system_r:dmidecode_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:etc_t:s0 tclass=file permissive=0
Mar 16 18:43:14 Fedora systemd[1]: virtnetworkd.service: Found left-over process 33033 (dnsmasq) in control group while starting unit. Ignoring.
Mar 16 18:43:14 Fedora systemd[1]: virtnetworkd.service: This usually indicates unclean termination of a previous run, or service implementation deficiencies.
Mar 16 18:43:14 Fedora systemd[1]: virtnetworkd.service: Found left-over process 33034 (dnsmasq) in control group while starting unit. Ignoring.
Mar 16 18:43:14 Fedora systemd[1]: virtnetworkd.service: This usually indicates unclean termination of a previous run, or service implementation deficiencies.
Mar 16 18:43:14 Fedora systemd[1]: Starting virtnetworkd.service - Virtualization network daemon...
Mar 16 18:43:14 Fedora systemd[1]: Started virtnetworkd.service - Virtualization network daemon.
Am I right, could this be the cause and if so what to do about it?
I did what you wrote just now and I am typing this from the VM. Let’s see and hope that it will stay running now.
I do have one question and that is about the code you wrote: how do you know this? Did you do a Linux course? I’m still trying to find something to learn more about the internals of Linux, but stil haven’t found what I am looking for.
It’s 12 minutes now and still going strong. Thank you very much for your help.
Another question: what could have caused it, just so I know what it is I (might) have done wrong?
Mar 16 18:43:14 Fedora audit[137761]: AVC avc: denied { map } for
pid=137761
comm="dmidecode" <<< The program having the problem
path="/etc/ld.so.cache" <<< That is the file involved
dev="nvme0n1p3"
ino=1442324 <<< the inode numer of /etc/ld.so.cache (I expect)
scontext=system_u:system_r:dmidecode_t:s0-s0:c0.c1023 <<< The source context. That is the context of dmidecode
tcontext=unconfined_u:object_r:etc_t:s0 <<< The destination context. Should be system_u:object_r:ld_so_cache_t:s0
tclass=file
permissive=0
If you create a file in /etc and rename it to ld.so.cache, it would be mislabeled.
Vladislav, you write to disable the libvirtd service.
In the web page you added it says this:
The intended change is to remove libvirtd.service and instead add
virtqemud.service
virtxend.service
virtlxcd.service
virtinterfaced.socket
virtnetworkd.socket
virtnodedevd.socket
virtnwfilterd.socket
virtproxyd.socket
virtsecretd.socket
virtstoraged.socket
I checked the mentioned services and I already use most of them, some are running, some are inactive(dead). The ones I don’t have are virtxend.service and virtlxcd.service
Is it safe to just disable the libvirtd daemon? My system wil keep running?
After applying Villy’s code:
sudo restorecon -r /etc
my VM is running for 2 hours already without problem, something which never happened before.