- Entry:
- CNTP
- VIT option:
- CSM
- Event:
- Pool contraction
- VIT processing module:
- ISTITCCS
- Control is returned to:
- IVTSMCEX
This trace record is written when CSM pool contraction
occurs. 
- Byte (hex)
- Contents
- 00–03
- Record ID: C"CNTP"
- 04
- ID is the primary address space ID (ASID). This field is 0 if the ASID is greater than X'FF'.
- 05–07
- 0
- 08–0B
- Pool address
- 0C–0F
- Extent address
- 10–13
- Number of buffers in extent
- 14–17
- Total number of buffers in the pool after contraction
- 18–1B
- Number of free buffers in the pool after contraction
- 1C–1F
- 0