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STATUS_NO_EVENT_PAIR
The thread has no event-pair object for this operation
Event pairs are a native synchronization mechanism built around paired low and high events and thread-associated wait/set operations. This status means code attempted a thread-specific event-pair service without the required event-pair association. It is not the same as waiting on an unsignaled ordinary event.
Because event-pair APIs are native and uncommon in application code, first preserve the exact system service and call stack. Check initialization order, thread reuse, and whether a client/server compatibility layer expected to bind an event pair to the current thread. Retrying on another worker can change thread-local association and obscure the actual lifecycle error.
What to inspect
- Record the native event-pair service and current thread ID.
- Verify the association step completed on the same thread before the wait/set call.
- Inspect compatibility or subsystem code that owns the event-pair lifecycle.
References
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