| Debugging Tools for Windows |
The DRIVER_RETURNED_HOLDING_CANCEL_LOCK bug check has a value of 0x0000011B. This bug check indicates that a driver has returned from a cancel routine that holds the global cancel lock. This causes all later cancellation calls to fail, and results in either a deadlock or another bug check.
The following parameters are displayed on the blue screen.
| Parameter | Description |
|---|---|
| 1 | The address of the IRP that was canceled (might not be valid). |
| 2 | The address of the cancel routine. |
The cancel spin lock should have been released by the cancel routine.
The driver calls the IoCancelIrpIoCancelIrp function to cancel an individual I/O request packet (IRP). This function acquires the cancel spin lock, sets the cancel flag in the IRP, and then calls the cancel routine specified by the appropriate field in the IRP, if a routine was specified. The cancel routine is expected to release the cancel spin lock. If there is no cancel routine, the cancel spin lock is released.