I have a Proxmox cluster with several Debian 12 virtual machines. These VMs use ntpd to synchronize time with local NTP servers. Under normal conditions, everything works correctly. However, when creating a disk-only snapshot, I observe that the VM’s internal time freezes for approximately 0.3–0.8 seconds. Shortly afterward, ntpd performs a time "step" to correct the offset, but I would prefer to avoid this issue entirely.
The problem occurs on VMs using both local-lvm and ceph storage. All VMs have the qemu-guest-agent installed, and no freeze-related messages appear during snapshot creation.
The problem occurs on VMs using both local-lvm and ceph storage. All VMs have the qemu-guest-agent installed, and no freeze-related messages appear during snapshot creation.