What does NTSTATUS 0xC0140020 (STATUS_ACPI_REG_HANDLER_FAILED) mean?

 
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STATUS_ACPI_INVALID_TABLE STATUS_ACPI_POWER_REQUEST_FAILED

STATUS_ACPI_REG_HANDLER_FAILED

STATUS_ACPI_REG_HANDLER_FAILED means that an attempt to register an ACPI event handler failed. The failure occurs at the registration stage; it does not state that a successfully registered handler later received a malformed event or that the device’s hardware action itself failed.

Start with the event category, target, registration owner and lifecycle state. A duplicate registration can yield STATUS_ACPI_HANDLER_COLLISION; other registration failures can involve an invalid event type, unsupported target or unavailable prerequisite state.

Registration of an ACPI event handler failed

  • Record the event type, identifier, handler owner and exact registration API or initialization phase.
  • Check whether the target is represented in the current ACPI table set and whether its event block or device object is present.
  • Trace matching unregister paths so stale registrations are not confused with a fresh registration failure.

References


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