Bug Check 0x121: DRIVER_VIOLATION

The DRIVER_VIOLATION bug check has a value of 0x00000121. This bug check indicates that a driver has caused a violation.

Important

This topic is for programmers. If you are a customer who has received a blue screen error code while using your computer, see Troubleshoot blue screen errors.

DRIVER_VIOLATION Parameters

Parameter 1 indicates the type of violation.

Parameter 1	Parameter 2	Parameter 3	Parameter 4	Cause
0x1	The current IRQL.	The required IRQL.	Reserved	A driver has called a function which can only be called at a specific IRQL.

Remarks

Use a kernel debugger and view the call stack to determine the name of the driver that caused the violation: the !analyze debug extension displays information about the bug check and can be helpful in determining the root cause, then enter one of the k (Display Stack Backtrace) commands to view the call stack.