- Entry:
- XBI3
- VIT option:
- XBUF
- Event:
- Extended buffer list AMU, SPAC, or TSCB
- VIT processing module:
- ISTITCXB
This trace record is a continuation of the XBI1 entry.
This record contains additional information about an extended buffer
list entry contained in an AMU, SPAC, or TSCB. 
- Byte (hex)
- Contents
- 00–03
- Record ID: C"XBI3"
- 04–07
- XBUFLST TSCB, SPAC, or AMU address
- 08–0B
- Length of data pointed to by this entry
- 0C–0F
- VTAM® I/O buffer address if entry represents data contained in I/O buffer or zeros
- 10–13
- Storage release routine
- 14
- XBFLFLGS byte
- 15–1F
- 0