| Previous | Next |
| STG_E_INVALIDHANDLE | STG_E_INVALIDPOINTER |
STG_E_INSUFFICIENTMEMORY
Structured-storage operation lacks required memory
STG_E_INSUFFICIENTMEMORY is HRESULT 2147680264 (0x80030008) from winerror.h. AllStat describes it as “There is insufficient memory available to complete operation.” The result belongs to allocation of storage objects, enumerators, buffers, or transaction state. The symbol this result is useful only when tied to the method and lifecycle phase where the storage implementation cannot allocate the memory needed to complete the requested operation.
The decisive meaning of this result is that the storage implementation cannot allocate the memory needed to complete the requested operation. The severity bit does not decide handling; the controlling fact is that the storage implementation cannot allocate the memory needed to complete the requested operation. A reliable it diagnosis preserves the raw value and reconstructs the state that made this true: the storage implementation cannot allocate the memory needed to complete the requested operation.
Where the result appears
- This result can surface in a IStorage, IStream, ILockBytes, property storage, compound-file parsing, or persistence code.
- map the failure to one concrete operation among StgOpenStorage, StgCreateStorageEx, IStorage, IStream, IPropertyStorage, STATSTG, and the selected STGM mode.
- Preserve storage path or identity, STGM mode, stream or storage name, transaction generation, file hash, and backing provider before releasing or replacing the object that returned this result.
An incident record for it must distinguish caller, runtime, provider, and backing resource while testing whether the storage implementation cannot allocate the memory needed to complete the requested operation.
Typical causes and interpretation boundary
The immediate contract boundary is specific: the storage implementation cannot allocate the memory needed to complete the requested operation. Common cause branches include the following:
- Process address space or commit is exhausted.
- A malformed file requests an unreasonable allocation.
- Many unreleased storage or enumerator objects accumulate.
Confirm the cause branch that explains why the storage implementation cannot allocate the memory needed to complete the requested operation by using call arguments, object state, metadata, device information, or provider traces.
Correct handling and recovery
The primary recovery is to release leaked objects, bound allocation sizes, and retry only after memory pressure has measurably changed. The result failure report should expose enough allocation of storage objects, enumerators, buffers, or transaction state state to understand why the storage implementation cannot allocate the memory needed to complete the requested operation without a production debugger.
The owner of it must define idempotency, cancellation, attempt limits, and reconciliation for the failed allocation of storage objects, enumerators, buffers, or transaction state. Reconcile persistent, remote, device, or ownership state before repeating it.
Practical scenario
Opening a damaged compound file yields a directory count large enough to exhaust the parser allocation; validation rejects the count before another attempt. Record the decisive state for it and verify recovery on a fresh object or request generation.
Difference from related HRESULTs
E_OUTOFMEMORY is the generic allocation result; it identifies the failure at a storage API boundary Tests and telemetry should preserve that boundary for it.
Developer and administrator guidance
Developers handling it should make object lifetime and state transitions explicit, preserve the native HRESULT, and keep cleanup paths safe when initialization or output is partial. Exercise direct and transacted modes, read-only and writable paths, cancellation, malformed input, and cleanup after partial output.
Broad permission or compatibility changes are inappropriate unless evidence for the storage implementation cannot allocate the memory needed to complete the requested operation points to that layer. Repair for it should target only the evidence-backed component, provider, document, device, or configuration.
References
- Microsoft: COM error codes for STG and RPC
- Microsoft: Structured Storage
- Microsoft: IStorage
- Microsoft: IStream
Looking for a different code? Search another status or error code.