Bug 1938956 - Error message need be enhanced when migrating vm with freePageReporting='on'
Summary: Error message need be enhanced when migrating vm with freePageReporting='on'
Keywords:
Status: CLOSED DUPLICATE of bug 1371747
Alias: None
Product: Red Hat Enterprise Linux Advanced Virtualization
Classification: Red Hat
Component: libvirt
Version: 8.4
Hardware: x86_64
OS: Linux
unspecified
medium
Target Milestone: rc
: 8.4
Assignee: Virtualization Maintenance
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-03-15 10:53 UTC by Jing Qi
Modified: 2021-03-16 09:58 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2021-03-16 09:58:30 UTC
Type: Bug
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description Jing Qi 2021-03-15 10:53:50 UTC 
Description of problem:
Migrate vm with freePageReporting='on', error message reports "0x130000022 unsupported"

Version-Release number of selected component (if applicable):
Source:
libvirt-daemon-7.0.0-8.module+el8.4.0+10233+8b7fd9eb.x86_64
qemu-kvm-5.2.0-10.module+el8.4.0+10217+cbdd2152.x86_64

Target:
libvirt-daemon-6.6.0-13.1.module+el8.3.1+10185+675b2148.x86_64
qemu-kvm-5.1.0-20.module+el8.3.1+9918+230f5c26.x86_64

How reproducible:

Always

Steps to Reproduce:
1.Start domain with "freePageReporting='on'" added in memballoon.
  <memballoon model='virtio' freePageReporting='on'>
      <address type='pci' domain='0x0000' bus='0x05' slot='0x00' function='0x0'/>
    </memballoon>

2. Migrate vm from RHEL-AV8.4  to RHEL-AV8.3.1 


Actual results:
[root@rhelav-8-4 ~]# virsh  migrate avocado-vt-vm1 qemu+ssh://10.0.151.184/system --verbose
root.**.**'s password: 
Migration: [ 91 %]error: internal error: qemu unexpectedly closed the monitor: 2021-03-15T10:38:10.610933Z qemu-kvm: -numa node,nodeid=0,cpus=0-1,mem=2048: warning: Parameter -numa node,mem is deprecated, use -numa node,memdev instead
2021-03-15T10:38:12.425475Z qemu-kvm: Features 0x130000022 unsupported. Allowed features: 0x179000002
2021-03-15T10:38:12.425509Z qemu-kvm: Failed to load virtio-balloon:virtio
2021-03-15T10:38:12.425515Z qemu-kvm: error while loading state for instance 0x0 of device '0000:00:02.4:00.0/virtio-balloon'
2021-03-15T10:38:12.449317Z qemu-kvm: warning: TSC frequency mismatch between VM (2693706 kHz) and host (2693670 kHz), and TSC scaling unavailable
2021-03-15T10:38:12.449525Z qemu-kvm: warning: TSC frequency mismatch between VM (2693706 kHz) and host (2693670 kHz), and TSC scaling unavailable
2021-03-15T10:38:12.449633Z qemu-kvm: load of migration failed: Operation not permitted


Expected results:
The error message can be more clear that "freePageReporting=on" is not supported

Additional info:
Migrate vm from RHEL-AV 8.4 to RHEL7.9 succeeded.
version:
libvirt-daemon-4.5.0-36.el7_9.3.x86_64
qemu-kvm-rhev-2.12.0-48.el7_9.2.x86_64
Comment 1 Peter Krempa 2021-03-16 09:58:30 UTC 
The freePageReporting feature was introduced in v6.8.0-312-gfee8a61d29, so the destination ignores the element and doesn't reject migration.

Closing as duplicate of 1371747 which covers this case in a more general approach.

*** This bug has been marked as a duplicate of bug 1371747 ***
Note You need to log in before you can comment on or make changes to this bug.