What does HRESULT 0x80041783 (WBREAK_E_BUFFER_TOO_SMALL) mean?

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WBREAK_E_BUFFER_TOO_SMALL

The composition buffer cannot hold the generated phrase

WBREAK_E_BUFFER_TOO_SMALL is HRESULT 0x80041783 (-2147215485 signed; 2147751811 unsigned). Its severity bit is 1, facility is 4 (FACILITY_ITF for these values), and code field is 0x1783. For WBREAK_E_BUFFER_TOO_SMALL, standard HRESULT severity rules classify the value as a failure. AllStat describes the value as “Buffer too small to hold composed phrase.”

Where the result belongs

WBREAK_E_BUFFER_TOO_SMALL belongs to building a phrase or alternative form during word breaking. The decisive interpretation is that the output phrase requires more storage than the caller supplied. For WBREAK_E_BUFFER_TOO_SMALL, keep the symbolic constant and method stage together in logs; its hexadecimal value alone cannot identify the owning transition or input.

For WBREAK_E_BUFFER_TOO_SMALL, word breakers process TEXT_SOURCE buffers and report words or phrases through sinks. In the WBREAK_E_BUFFER_TOO_SMALL investigation, locale, mode, refill behavior and component registration must be captured together. This context narrows the responsible component without replacing the code-specific checks below.

Concrete causes

• For WBREAK_E_BUFFER_TOO_SMALL, check compound-word expansion is longer than anticipated.
• For WBREAK_E_BUFFER_TOO_SMALL, check a fixed buffer ignores language-specific growth.
• For WBREAK_E_BUFFER_TOO_SMALL, check the required terminator or separator was omitted from sizing.
• For WBREAK_E_BUFFER_TOO_SMALL, check an extreme token triggers the maximum phrase length.

The useful hypothesis for WBREAK_E_BUFFER_TOO_SMALL must explain both building a phrase or alternative form during word breaking and the documented condition. Compare the failing case with a control that preserves input token and locale and changes only supplied and required buffer sizes; this prevents unrelated environment differences from dominating the WBREAK_E_BUFFER_TOO_SMALL test.

Evidence to retain

• Input token and locale; preserve the observation under the WBREAK_E_BUFFER_TOO_SMALL correlation record.
• Supplied and required buffer sizes; preserve the observation under the WBREAK_E_BUFFER_TOO_SMALL correlation record.
• Composition operation; preserve the observation under the WBREAK_E_BUFFER_TOO_SMALL correlation record.
• Word-breaker version; preserve the observation under the WBREAK_E_BUFFER_TOO_SMALL correlation record.

For WBREAK_E_BUFFER_TOO_SMALL, capture input token and locale before releasing objects, closing handles or reconnecting. Retain the raw HRESULT with supplied and required buffer sizes, component version, UTC timestamp and correlation ID. Bound the WBREAK_E_BUFFER_TOO_SMALL telemetry to diagnostic metadata because document content, credentials and unrestricted query text may be sensitive.

Diagnostic path

1. Capture the required size when the contract exposes it. Associate this observation specifically with WBREAK_E_BUFFER_TOO_SMALL.
2. Retry with checked dynamic allocation and a hard safety ceiling. Associate this observation specifically with WBREAK_E_BUFFER_TOO_SMALL.
3. Test compound and inflected forms for the target language. Associate this observation specifically with WBREAK_E_BUFFER_TOO_SMALL.
4. Reject implausible growth caused by corrupt input. Associate this observation specifically with WBREAK_E_BUFFER_TOO_SMALL.

Change one variable per WBREAK_E_BUFFER_TOO_SMALL control run. Preserve the component version and target identity, then alter only the condition described as the output phrase requires more storage than the caller supplied. This isolates whether WBREAK_E_BUFFER_TOO_SMALL is causal rather than merely repeatable.

Recovery and retry

Resize the buffer within documented limits and retry the composition step; do not restart the entire catalog operation unnecessarily. For WBREAK_E_BUFFER_TOO_SMALL, record whether building a phrase or alternative form during word breaking produced any content, update or state transition before returning. If completion remains unknown, the WBREAK_E_BUFFER_TOO_SMALL path must not replay non-idempotent work until the owner confirms final state.

The retry gate for WBREAK_E_BUFFER_TOO_SMALL should be a concrete change in input token and locale or supplied and required buffer sizes. A timer alone cannot demonstrate that the WBREAK_E_BUFFER_TOO_SMALL contract condition has changed.

What must not be inferred

It does not imply low system memory or a full content-index disk. Without the call boundary for building a phrase or alternative form during word breaking, WBREAK_E_BUFFER_TOO_SMALL also cannot identify which wrapper or configuration layer introduced the condition.

Nearby results

CI_E_BUFFERTOOSMALL is a generic helper-function sizing result; this HRESULT is specific to a composed word-breaking phrase. In WBREAK_E_BUFFER_TOO_SMALL telemetry, preserve neighboring constants separately because the same visible symptom may require a different caller action, owner or recovery gate.

Developer and administrator actions

• The WBREAK_E_BUFFER_TOO_SMALL investigation should record At the code boundary, keep input token and locale beside the returned HRESULT.
• The WBREAK_E_BUFFER_TOO_SMALL investigation should record In telemetry, correlate supplied and required buffer sizes with the target and component generation.
• The WBREAK_E_BUFFER_TOO_SMALL investigation should record For regression coverage, force the documented condition: the output phrase requires more storage than the caller supplied.
• The WBREAK_E_BUFFER_TOO_SMALL investigation should record For operations staff, expose the corrective state change rather than a generic retry button.
• The WBREAK_E_BUFFER_TOO_SMALL investigation should record After remediation, validate one known-good control and the original failing case.

Operational example

A German compound expands beyond an English-oriented stack buffer. A measured allocation preserves the phrase without truncation. In this scenario, handling WBREAK_E_BUFFER_TOO_SMALL at its real contract boundary prevents the application from collapsing a precise state into an unhelpful generic “search failed” message.

Official Microsoft references

• Microsoft: Word-Breaking values — official contract information relevant to WBREAK_E_BUFFER_TOO_SMALL.
• Microsoft: IWordBreaker::BreakText — official contract information relevant to WBREAK_E_BUFFER_TOO_SMALL.
• Microsoft: IWordBreaker interface — official contract information relevant to WBREAK_E_BUFFER_TOO_SMALL.
• Microsoft: troubleshooting language resources — official contract information relevant to WBREAK_E_BUFFER_TOO_SMALL.
• Microsoft: TEXT_SOURCE structure — official contract information relevant to WBREAK_E_BUFFER_TOO_SMALL.

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