Bug Check Codes


Windows Driver Kit: Driver Development Tools
Bug Check 0xB8: ATTEMPTED_SWITCH_FROM_DPC

The ATTEMPTED_SWITCH_FROM_DPC bug check has a value of 0x000000B8. This indicates that an illegal operation was attempted by a delayed procedure call (DPC) routine.

Parameters

The following parameters are displayed on the blue screen.

ParameterDescription
1The original thread causing the failure
2The new thread
3The stack address of the original thread
4Reserved

Cause

A wait operation, attach process, or yield was attempted from a DPC routine. This is an illegal operation.

Resolving the Problem

The stack trace will lead to the code in the original DPC routine that caused the error.


Send feedback on this topic
Built on October 01, 2009
Page view tracker