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The IrqlExApcLte1 rule specifies that the driver calls ExAcquireFastMutex and ExTryToAcquireFastMutex only at IRQL <= APC_LEVEL.
Driver model: WDM
Bug check(s) found with this rule: Bug Check 0xC4: DRIVER_VERIFIER_DETECTED_VIOLATION (0x00020005), Bug Check 0xA: IRQL_NOT_LESS_OR_EQUAL
How to test
| At compile time |
|---|
Run Static Driver Verifier and specify the IrqlExApcLte1 rule. Use the following steps to run an analysis of your code:
For more information, see Using Static Driver Verifier to Find Defects in Drivers. |
| At run time |
|---|
Run Driver Verifier and select the DDI compliance checking option. |
Applies to
ExAcquireFastMutex ExTryToAcquireFastMutex
See also
Managing Hardware Priorities Preventing Errors and Deadlocks While Using Spin Locks