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 (Moderate: virt:rhel and virt-devel:rhel security and bug fix update), 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/RHSA-2023:1833
Created attachment 1955668 [details] The scripts for verification Test hot-plug, domblkinfo, attach-device for the VM with 199 external snapshots, PASS version: libvirt-8.0.0-5.9.module+el8.6.0+18552+b96c5a91.x86_64 qemu-kvm-6.2.0-11.module+el8.6.0+14712+f96656d3.x86_64 results: Domain 'rhel' started event 'agent-lifecycle' for domain 'rhel': state: 'connected' reason: 'channel event' events received: 1 Disk attached successfully Capacity: 104857600 Allocation: 204800 Physical: 196616 Block Copy: [100 %] Now in mirroring phase Capacity: 104857600 Allocation: 204800 Physical: 196616 Domain 'rhel' destroyed In contrast, all these steps will fail on the buggy versions: Domain 'rhel' started event 'agent-lifecycle' for domain 'rhel': state: 'connected' reason: 'channel event' events received: 1 Disk attached successfully error: internal error: QEMU monitor reply exceeds buffer size (10485760 bytes) error: internal error: QEMU monitor reply exceeds buffer size (10485760 bytes) error: internal error: QEMU monitor reply exceeds buffer size (10485760 bytes) Domain 'rhel' destroyed See the attachment for the details.