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+++ This bug was initially created as a clone of Bug #1965589 +++
Description of problem:
Start a vm, execute some operations that can produce taint message, then restart libvirtd and check dominfo, and found that Taint message generated during vm running is not preserved during libvirtd restart
Version-Release number of selected component (if applicable):
libvirt-7.3.0-1.module+el8.5.0+11004+f4810536.x86_64
How reproducible:
100%
Steps to Reproduce:
1. Start a vm
2. Execute some operations that can produce taint message, e.g.
1) Execute agent command
virsh qemu-agent-command $vm '{"execute": "guest-info"}'
2) Hotplug a cdrom type disk sourced by host block device
# virsh attach-disk avocado-vt-vm1 --source /dev/cdrom --type cdrom --sourcetype block --target hda
3) Hotplug a interface device with script
# virsh attach-device avocado-vt-vm1 net.xml
# cat net.xml
<interface type='ethernet'>
<script path='/etc/qemu-ifup'/>
</interface>
3. Check dominfo:
# virsh dominfo avocado-vt-vm1
Id: 4
Name: avocado-vt-vm1
UUID: fa26e276-1bb1-47eb-be0e-57e8bb8cf0d9
OS Type: hvm
State: running
...
Messages: tainted: network configuration using opaque shell scripts
tainted: potentially unsafe use of host CPU passthrough
tainted: use of host cdrom passthrough
tainted: custom guest agent control commands issued
4. Restart libvirtd
5. Check dominfo:
# virsh dominfo avocado-vt-vm1
Id: 4
Name: avocado-vt-vm1
UUID: fa26e276-1bb1-47eb-be0e-57e8bb8cf0d9
OS Type: hvm
State: running
...
Messages: tainted: potentially unsafe use of host CPU passthrough
Actual results:
Taint message that are generated when vm starts is preserved during libvirtd restart, but not for those generated when vm is running
Expected results:
All taint messages should be preserved during libvirtd restart
Additional info:
--- Additional comment from on 2021-07-22 15:27:05 UTC ---
Patch proposed on the list:
https://listman.redhat.com/archives/libvir-list/2021-July/msg00584.html
--- Additional comment from Fangge Jin on 2021-07-29 06:09:06 UTC ---
Forgot to mention that hotplug cdrom/interface actually failed in comment 0
--- Additional comment from on 2021-08-12 11:50:14 UTC ---
Merged upstream as:
878cbd0f6a qemu: save status xml after generating taint message
v7.6.0-101-g878cbd0f6a
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (new packages: libvirt), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2022:2390