DASD common services—problem determination area (PDA)

The DASD common services PDA provides the keyword-oriented diagnostic information. Table 1 provides a detailed description of all PDA information.

Table 1. PDA Information

Offset
Dec(Hex)

Bytes and
Bit Pattern

Field Name

Description

0 (X'00') 2 DISPDRTN Return code
2 (X'02') 1 DISPDCM1 A comma
3 (X'03') 3 DISPDRSN Reason code
6 (X'06') 1 DISPDCM2 A comma
7 (X'07') 8 DISPDNAM Name of the module detecting the error
15 (X'0F') 1 DISPDCM3 A comma
16 (X'10') 4 DISPDISP Hexadecimal displacement from module entry point to the instruction detecting the error
20 (X'14') 1 DISPDCM4 A comma
21 (X'15') 3 DISPDID1 ID of the most recent calling function
24 (X'18') 1 DISPDCM5 A comma
25 (X'19') 3 DISPDID2 ID of second most recent calling function
28 (X'1C') 1 DISPDCM6 A comma
29 (X'1D') 3 DISPDID3 ID of third most recent calling function