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STATUS_VID_RESERVE_PAGE_SET_TOO_SMALL
The reserve page set cannot cover the requested pages
STATUS_VID_RESERVE_PAGE_SET_TOO_SMALL means the support pages reserved for a memory operation are insufficient for the requested lock.
The reserve page set cannot supply enough support pages for the lock request described by this VID operation. Compare the reserve-set capacity with the exact page count being locked and with any split-range logic, because the shortage is in this host-side support resource rather than the guest's free-memory total.
The failed resource is not guest free memory. It is the host reserve page-set capacity needed to describe or support the requested page operation.
What to inspect
- Compare the reserve page-set size with the requested GPA page count.
- Check for a larger-than-expected memory operation after Dynamic Memory, migration, or device mapping changes.
- Look for page-count calculation errors when converting byte sizes to pages.
References
- Microsoft: WHvMapGpaRange
- Microsoft: Windows Hypervisor Platform API definitions
- Microsoft: Hyper-V live migration troubleshooting
- Microsoft Open Specifications: NTSTATUS values
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