ISTVSLIP

Use ISTVSLIP to display the registers and PSW that were current at the time of an SLIP dump. The registers and PSW are extracted from the SDUMP buffer pointed to by the CVT.

All 16 general registers and the PSW are displayed, along with the module name and displacement that the address portion of the PSW represents (the module in control at the time the SLIP trap occurred). The module name and displacement that register 14 represents (usually the calling module or within the current module) are also displayed. If the dump was not taken as a result of an SLIP trap, a message to that effect is displayed.

IPCS symbols are created for each register and the address portion of the PSW. After ISTVSLIP has executed, storage locations pointed to by these registers (or PSW) can be displayed using these symbols in the IPCS LIST command. For example, L R4 will display the storage pointed to by register 4 at the time the SLIP trap occurred.

Note: ISTVSLIP does not support stand-alone dumps taken after the SLIP ACTION=WAIT MVS™ system command is issued.

The ISTVSLIP command can also be issued from the panel interface.

Syntax


>>-ISTVSLIP----------------------------------------------------><

Equated symbol

Symbol or symbols: Description
R0, REG0: Register 0
R1, REG1: Register 1
R2, REG2: Register 2
R3, REG3: Register 3
R4, REG4: Register 4
R5, REG5: Register 5
R6, REG6: Register 6
R7, REG7: Register 7
R8, REG8: Register 8
R9, REG9: Register 9
R10, REG10, RA, REGA: Register 10
R11, REG11, RB, REGB: Register 11
R12, REG12, RC, REGC: Register 12
R13, REG13, RD, REGD: Register 13
R14, REG14, RE, REGE: Register 14
R15, REG15, RF, REGF: Register 15
PSW: PSW address

Additional information

The dump data set name is displayed to verify that the correct dump is being processed. The title of the dump is displayed for additional verification that the dump being processed is, in fact, an ISTVSLIP dump.

To determine the module name, displacement, and PTF level for the PSW and register 14, VTFNDMOD is called. The PSW address and register 14 are used as input to VTFNDMOD.

Sample output

ISTVSLIP
 
 CLIST ISTVSLIP STARTED AT 17:42:19.
 
 DUMP DATASET NAME: IPCS.P620527.DUMPA
 TITLE FROM DUMP:   SLIP DUMP ID=0001
 THE ADDRESS OF THE SDUMP BUFFER IN THE CVT IS 00C95000.
 PRIMARY ASID AT THE TIME OF ENTRY TO SLIP IS X'000A'
 
 PSW AT ENTRY TO RTM: 00000000 01D03790
 
 REGISTERS WHEN SLIP TRAP MATCHED:
 REG0 = 08000000   REG1 = 080A9000   REG2 = 00000012   REG3 = 00000012
 REG4 = 007FF158   REG5 = 80C1EFC8   REG6 = 00003000   REG7 = 00000004
 REG8 = 0000000B   REG9 = 81E6190C   REGA = 0650CE40   REGB = 81E51A98
 REGC = 81D0347A   REGD = 0650CE40   REGE = 01F2A714   REGF = 010E35E0
 
 (ISTVSLIP) PROCESSING OF PSW FOLLOWS:
 
  VTAMMAP input data
  VTFNDMOD ADDR(X'01D03790') NNTERNAL
 
 Module name:               ISTCFF3D
 Compile date:              92.318
 Address entered:           01D03790
 Module entry point:        01D03462
                            --------
 Displacement into module:       32E
 
 First '40'X bytes of module:
  DATA: 01D03462
     +0000  47F0F016  10C9E2E3  C3C6C6F3  C44040F9  | .00..ISTCFF3D  9 |
     +0010  F24BF3F1  F80005C0  185F1861  187041F0  | 2.318..{.¬./...0 |
     +0020  00005800  CB7E47F0  C0160000  020089F0  | .....=.0{.....i0 |
     +0030  0008BFFD  C0121B11  0A7818A1  18161807  | ..P.{......~.... |
 
 Storage around address entered:
 
  DATA: 01D0377C
     +0000  89000018  16101823  58F00010  58F0F034  | i........0...00. |
     +0010  58F0F020  05EF47F0  C5445850  04081255  | .00....0E..&.... |
     +0020  4780C34A  91405488  4780C34A  58205B50  | ..C+j .h..C+..$& |
     +0030  12224780  C34A9102  54884710  C34A5850  | ....C+j..h..C+.& |
 
 Address is in extended pageable LPA (above the 16M line).
 Extended pageable LPA starting address: 01C13000
 Extended pageable LPA ending address:   025F8FFF
 
 (ISTVSLIP) PROCESSING OF REG 14 FOLLOWS:
 
 VTAMMAP input data
 
 VTFNDMOD ADDR(X'1F2A714')
 
 Module name:               ISTDSCGD
 Compile date:              92.256
 
 Address entered:           01F2A714
 Module entry point:        01F2A6A0
                            --------
 Displacement into module:        74

 First '40'X bytes of module:
 
 DATA: 01F2A6A0
     +0000  47F0F014  0FC9E2E3  C4E2C3C7  C440F9F2  | .00..ISTDSCGD 92 |
     +0010  4BF2F5F6  90ECD00C  18BF41F0  00005800  | .256..}....0.... |
     +0020  B95C0700  47F0B02C  00000200  89F00008  | .*...0......i0.. |
     +0030  BFFDB028  1B110A78  18C150D0  C00450C0  | .........A&}{;&{ |
 
 Storage around address entered:
 
  DATA: 01F2A700
     +0000  B93E58A0  ACE45630  B8E858F0  A0005820  | .....U...Y.0.... |
     +0010  B8F805EF  980E1028  58201020  12FF4770  | .8..q........... |
     +0020  B094D203  2000B92C  58E04000  50E02024  | .mK......\ .&\.. |
     +0030  47F0B098  41F00008  12FF4770  B52041A0  | .0.q.0.......... |
 
 Address is in extended pageable LPA (above the 16M line).
 Extended pageable LPA starting address: 01C13000
 Extended pageable LPA ending address:   025F8FFF
 
 (ISTVSLIP) THE REGISTER SAVE AREA CHAIN COULD NOT BE ANALYZED.
            REG 13 IS NOT VALID OR STORAGE IS NOT AVAILABLE.
 
 CLIST ISTVSLIP ENDED AT 17:43:30. RETURN CODE = 0.