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.

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.

ATTEMPTED_SWITCH_FROM_DPC Parameters

The following parameters are displayed on the blue screen.

ParameterDescription

1

The original thread causing the failure

2

The new thread

3

The stack address of the original thread

4

Reserved

 

Cause

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

Resolution

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

 

 

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