Batch B of the audit's medium tier (M4+M5+M6):
- M4: adapter_init_finished now reads AdapterInitStatus (was ignored) and
only stashes the adapter on NT_SUCCESS, per the MS sample. A failed async
init previously produced a HUSK adapter: monitors created on it arrive
but the OS never assigns a swap-chain — every session black-screens with
no visible cause (the exact signature live fault-injection produced after
a WUDFHost kill). Unset adapter → ADD fails cleanly (host-retryable) and
a re-entrant D0 retries the init; the status is now in the debug log.
- M5: pooled_device checks GetDeviceRemovedReason on a cache hit — a TDR'd
device was returned for its LUID forever (SetDevice fail-loop, black
virtual display until device teardown); now it falls through to a fresh
create.
- M6: an AvSetMmThreadCharacteristicsW failure no longer aborts the worker
before draining (which stalled the monitor and leaked the WDF swap-chain
object) — continue unprioritized like the MS sample; revert only if MMCSS
actually engaged.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
enricobuehler
b46aa15afb