HRESULT 0x80280922 (TPM_20_E_RETRY): meaning and diagnosis

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The TPM could not start the command and requests a later retry.

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TPM_20_E_LOCKOUT	TPM_20_E_NV_UNAVAILABLE

TPM_20_E_RETRY

RETRY means the command did not start

TPM_20_E_RETRY represents TPM_RC_RETRY. It is a warning response for temporary inability to begin processing a command. Unlike TPM_RC_YIELDED, it does not indicate that part of the command already ran.

Applications should normally rely on the TPM software stack's retry policy. A tight retry loop can monopolize TBS and amplify a temporary busy condition. Because the command did not start, a bounded retry with identical inputs is generally appropriate, but the surrounding application operation must still be checked for cancellation or expiry.

Diagnosing repeated retries

Apply backoff and an overall deadline rather than retrying without limit.
Keep the same handles and sessions valid across the retry interval.
Separate the TPM response from TBS service-start, transport, and I/O errors.
Capture concurrent TPM workload and firmware version when retries persist under light load.

References

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