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title description keywords ms.date topic_type ms.topic api_name api_type
!prcb (WinDbg)
The !prcb extension displays the processor control block (PRCB).
processor control block
!prcb Windows Debugging
05/23/2017
apiref
reference
prcb
NA

!prcb

The !prcb extension displays the processor control block (PRCB).

!prcb [Processor]

Parameters

Processor
Specifies the processor to retrieve the PRCB information from. If Processor is omitted, processor zero will be used.

DLL

Kdexts.dll

Additional Information

For information about the PCR and the PRCB, see Microsoft Windows Internals, by Mark Russinovich and David Solomon.

Remarks

The PRCB is an extension of the processor control region (PCR). To display the PCR, use the !pcr extension.

Here is an example:

kd> !prcb
PRCB for Processor 0 at e0000000818ba000:
Threads--  Current e0000000818bbe10 Next 0000000000000000 Idle e0000000818bbe10
Number 0 SetMember 00000001
Interrupt Count -- 0000b81f
Times -- Dpc    00000028 Interrupt 000003ff 
         Kernel 00005ef4 User      00000385