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kOSKextReturnStopping
The kext is in its stop transition
kOSKextReturnStopping means that the kext is in the process of stopping, so requests cannot be made. This is a state-transition result: it tells a caller that the component is already leaving the active state, not that a new request was rejected for lack of privilege or because the bundle is invalid.
Race-aware diagnostics matter here. A client may legitimately observe this code when it races an unload or teardown path. Replaying the request without controlling lifecycle ordering can produce a different status and hide the original sequence.
What to correlate
- The request timestamp against the initiating stop or unload operation.
- Which client or service still held references, if teardown later returns
kOSKextReturnInUse. - Whether a stop routine has returned an error, which would instead be represented by
kOSKextReturnStartStopError.
References
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