Type ASSEMBLE
Source Lines : 877
Fixes Applied : 1
Most Recent Version : Friday, December 8, 1978
Last Fix ID : [R10450DM]
Module
DMMINI
Function
INTERFACE TO VMFDUMP PROGRAM 'DMKEDM'
IF A DUMP NAME WAS SPECIFIED IN THE OPTIONS LIST
CONTROL IS RETURNED TO DMKEDM FOR NORMAL PROCESSING.
IF A DUMP NAME WAS NOT SPECIFIED A UNIQUE PROBLEM
NUMBER IS ASSIGNED TO THE DUMP AND CONTROL IS RETURNED
TO DMKEDM TO READ THE DUMP FROM THE CP SPOOL FILE AND
CREATE A CMS FILE TO BE USED BY THE DATA EXTRACTION
ROUTINES.
Attributes
NON-REENTERABLE
Operation
1. READ RECORD 1 FROM THE DUMP (SYMBOL TABLE) INTO
'WRKBUF' TO DETERMINE THE HIGHEST RESIDENT PAGE ADD.
AND EXTRACT THE PLC AND SCP LEVEL FOR THE PROBLEM
REPORT.
2. READ RECORD 2 FROM THE DUMP (DUMP INFORMATION RECORD)
INTO 'EXTINREC' BUFFER FOR LATER RETRIEVAL OF GENERAL
REGISTERS AND USE OF THE DUMP FILE PAGE BIT MAP.
THE DATE AND TIME OF THE FAILURE IS ALSO TAKEN FROM
RECORD 2 AND STORED IN THE PROBLEM REPORT.
3. READ RECORD 5 FROM THE DUMP, FOR PSA REFERENCE, INTO
BUFFER 'EXTPSA'.
4. THE RUNUSER VALUE IS TAKEN FROM THE PSA AND THE
VMBLOK ADDRESS AND USER I.D. IS MOVED TO THE PROBLEM
REPORT.
5. A CALL IS MADE TO ROUTINE 'DMMMAP' TO COMPRESS
AND ADDRESS SORT THE LOAD MODULE MAP (NUC MAP A)
FOR LATER MODULE NAME SEARCH.
6. DETERMINE THE CAUSE OF THE DUMP BY VARIOUS
EXAMINATIONS OF THE PSA (PROGRAM CHECK,CP CODED ABEND
LOOP OR WAIT) AND CALLS THE APPROPRIATE ROUTINE.
A. TEST THE PROGRAM OLD PSW FOR A PROGRAM
CHECK. IF THE PSW IS SYSTEM STATE AND NOT
MONITOR CALL THE PRG. CHECK IS CONSIDERED
TO BE IN THE CONTROL PROGRAM.
B. TEST THE MACHINE CHECK PSW. INDICATE IN
PROBLEM REPORT THE PRESENCE OF A MACHINE
CHECK WHETHER OR NOT THIS IS THE CAUSE OF
THE PROBLEM.
C. TEST THE SVC OLD PSW IF IT IS IN THE SYSTEM
STATE AND THE INTERRUPT CODE IS '0' (SVC 0)
THE ABEND IS CONSIDERED A CONTROL PROGRAM
CODED ABEND.
D. IF NEITHER PRG.CHECK OR CP CODED ABEND
A CHECK IS MADE FOR A 'PSA002' ABEND
INDICATING THE DUMP WAS THE RESULT
OF DEPRESSING THE SYSTEM RESTART
BUTTON. IF THE DUMP WAS OPERATOR INITIATED
THE CURRENT PSW WAIT BIT IS TESTED,IF ON
A WAIT STATE CONDITION IS ASSUMED. IF OFF
THE DUMP WAS THE RESULT OF A LOOP OR OTHER
CONDITION.
E. FOR WAIT,LOOP AND OTHER CONDITIONS THE LAST
FOUR TRACE ENTRIES ARE MOVED INTO THE TEXT
AREA OF THE PROBLEM REPORT. IF THERE IS A
WAIT CODE ASSOCIATED WITH THE WAIT IT IS
MOVED TO THE PROBLEM REPORT. FOR LOOP OR
OTHER CONDITION THE CURRENT PSW IS MOVED TO
THE PROBLEM REPORT TEXT AREA.
F. THE APPROPRIATE ROUTINE IS NOW CALLED TO
FURTHER PROCESS THE DUMP.
Calls to Other Routines
NONE