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The PcUnmapAllocatedPages rule specifies that:
- A PortCls miniport driver doesn't map an MDL that is currently mapped without first unmapping it.
- A PortCls miniport driver unmaps the memory prior to freeing it using the IMiniportWaveRTStream interface.
Driver model: Audio
Bug check(s) found with this rule: Bug Check 0xC4: DRIVER_VERIFIER_DETECTED_VIOLATION (0x00071004)
How to test
| At run time |
|---|
To verify this rule, open a Command Prompt window. Enter a Driver Verifier command and specify /domain audio. For example: verifier /domain audio [options] /driver <yourdriver> For more information, see Driver Verifier. |