Bug Check 0x39: SYSTEM_EXIT_OWNED_MUTEX

The SYSTEM_EXIT_OWNED_MUTEX bug check has a value of 0x00000039. This indicates that the worker routine returned without releasing the mutex object that it owned.

Important

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

SYSTEM_EXIT_OWNED_MUTEX Parameters

Parameter	Description
1	The address of the worker routine that caused the error.
2	The parameter passed to the worker routine.
3	The address of the work item.
4	Reserved.

Cause

The worker routine returned while it still owned a mutex object. The current worker thread will proceed to run other unrelated work items, and the mutex will never be released.

Resolution

A debugger is required to analyze this problem. To find the driver that caused the error, use the ln (List Nearest Symbols) debugger command:

kd> ln address

Where address is the worker routine given in Parameter 1.