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IrqlIoDispatch rule (wdm)

The IrqlIoDispatch rule specifies that the driver calls the following I/O Manager routines only when it is executing at IRQL <= DISPATCH_LEVEL: IoGetDeviceToVerify, IoSetDeviceToVerify.

Driver model: WDM

Bug check(s) found with this rule: Bug Check 0xC4: DRIVER_VERIFIER_DETECTED_VIOLATION (0x 0x20022 )

How to test

At compile time

Run Static Driver Verifier and specify the IrqlIoDispatch rule.

Use the following steps to run an analysis of your code:
  1. Prepare your code (use role type declarations).
  2. Run Static Driver Verifier.
  3. View and analyze the results.

For more information, see Using Static Driver Verifier to Find Defects in Drivers.

See also

Managing Hardware Priorities

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