github-actions[bot] commented on issue #12871: URL: https://github.com/apache/cloudstack/issues/12871#issuecomment-5294167177
## ๐ฏ Triage report Taking a VM instance snapshot with "Quiesce Instance" enabled fails with `can't handle quiescevm equal true for volume snapshot`, even though the guest agent's fsfreeze/fsthaw hooks fire regardless of the option's state. Multiple independent users (KVM+Ceph, various guest OSes) confirm the failure across CloudStack 4.20โ4.22, and extensive troubleshooting (disk controller types, UEFI) has not found a resolution. ### ๐ Assessment | Dimension | Value | Reasoning | |---|---|---| | **Type** | type:bug | Consistent, reproducible failure tied to a specific snapshot option; confirmed by multiple independent reporters | | **Component** | component:kvm | KVM VM/volume snapshot logic interacting with the QEMU guest agent quiesce feature | | **Severity** | Severity:Minor | Functional workaround exists (disable Quiesce Instance) though it doesn't fully avoid guest-side freeze/thaw calls; affects a used but non-critical feature | | **Labels** | type:bug, component:kvm, Severity:Minor | | | **Coding agent** | Not suitable | Nearly 5 months of community troubleshooting (disk controllers, UEFI firmware limits) have not pinned down root cause; requires deeper investigation into the KVM snapshot/quiesce code path before a fix can be scoped | ### ๐ Similar issues - https://github.com/apache/cloudstack/issues/10534 (related) โ "Standalone API for VM Quiesce/Unquiesce" โ related guest-agent quiesce functionality that could inform this fix. <details><summary>๐ก Notes and suggestions</summary> - A commenter (davift) suggested UEFI firmware (Tiano Core) may not support quiesce-based snapshots โ worth confirming whether this failure is UEFI-specific or affects legacy BIOS VMs too, since reports mix both. - Given the wide range of testers/configs (Windows Server 2022, Linux, Ceph, various disk controllers) all hitting the same "can't handle quiescevm equal true for volume snapshot" error, the failure is likely coming from a single code path (possibly conflating VM snapshot and volume snapshot APIs) rather than a hypervisor/guest-agent-specific issue. </details> > Generated by [Daily Issue Triage](https://github.com/apache/cloudstack/actions/runs/31806898936) ยท sonnet50 357.5K ยท [โท](https://github.com/search?q=repo%3Aapache%2Fcloudstack+%22gh-aw-workflow-call-id%3A+apache%2Fcloudstack%2Fdaily-issue-triage%22&type=issues) > <details> <summary>Add this agentic workflows to your repo</summary> To install this agentic workflow, run ``` gh aw add githubnext/agentics/workflows/daily-issue-triage.md@d7c1dc4b72b00607a67caaffdcc216cb64379cf9 ``` </details> <!-- gh-aw-agentic-workflow: Daily Issue Triage, engine: copilot, version: 1.0.52, model: claude-sonnet-5, id: 31806898936, workflow_id: daily-issue-triage, run: https://github.com/apache/cloudstack/actions/runs/31806898936 --> <!-- gh-aw-workflow-call-id: apache/cloudstack/daily-issue-triage --> -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
