Default contents of ABEND dumps

The contents of the three ABEND dumps are detailed in the following two tables. Table 1 shows dump contents alphabetically by the parameters that specify the areas in the dumps. To select a dump, decide what areas will be used to diagnose potential errors. Find the areas in the tables. The symbols in columns under the dump indicate how the area can be obtained in that dump. The symbols are:
D
IBM-supplied default contents
M
Available on the macro that requests the dump
P
Available in the parmlib member that controls the dump options
X
Available on the CHNGDUMP operator command that changes the options for the dump type
Table 1. Summary: dump contents by parameter
Parameter Dump Contents ABEND Dump to SYSUDUMP ABEND Dump to SYSABEND ABEND Dump to SYSMDUMP
ALL All the dump options available in a SYSMDUMP dump, except the NOSYM and ALLNUC options     X
ALLNUC The DAT-on and DAT-off nucleuses     P X
ALLPA All link pack areas, as follows:
  • Job pack area (JPA)
  • Link pack area (LPA) active for the task being dumped
  • Related Supervisor Call (SVC) modules
M P X D M P X M
ALLPDATA All the program data areas P X P X  
ALLSDATA All the system data areas P X P X P
ALLVNUC The entire virtual control program nucleus, including:
  • Prefixed save area (PSA)
  • System queue area (SQA)
  • Local system queue area (LSQA)
M P X M P X M
CB Control blocks for the task being dumped M P X D M P X M
CSA Common service area (CSA) (that is, subpools 227, 228, 231, 241)     P X
DM Data management control blocks for the task being dumped:
  • Data control block (DCB)
  • Data extent block (DEB)
  • Input/output block (IOB)
M P X D M P X M
ENQ Global resource serialization control blocks for the task being dumped:
  • Global queue control blocks
  • Local queue control blocks
P X D P X  
ERR Recovery termination manager (RTM) control blocks for the task being dumped:
  • Extended error descriptor (EED) for RTM
  • Registers from the system diagnostic work area (SDWA)
  • RTM2 work area (RTM2WA)
  • Set task asynchronous exit (STAE) control block (SCB)
M P X D M P X M
GRSQ Global resource serialization control blocks for the task being dumped:
  • Global queue control blocks
  • Local queue control blocks
    P X
IO Input/output supervisor (IOS) control blocks for the task being dumped:
  • Execute channel program debug area (EXCPD)
  • Unit control block (UCB)
M P X D M P X M
JPA Job pack area (JPA): module names and contents M P X M P X M
LPA Active link pack area (LPA): module names and contents M P X M P X M P X
LSQA Local system queue area (LSQA) allocated for the address space (that is, subpools 203 - 205, 213 - 215, 223 - 225, 229, 230, 233 - 235, 249, 253 - 255) M P X D M P X D M P X
NOSYM No symptom dump (message IEA995I) P X P X P X
NUC Read/write portion of the control program nucleus (that is, only non-page-protected areas of the DAT-on nucleus), including:
  • Communication vector table (CVT)
  • Local system queue area (LSQA)
  • Prefixed save area (PSA)
  • System queue area (SQA)
M P X M P X D M P X
PCDATA Program call information for the task M P X M P X M
PSW Program status word (PSW) when the dump was requested M P X D M P X M P X
Q Global resource serialization control blocks for the task being dumped:
  • Global queue control blocks
  • Local queue control blocks
M M M
REGS Registers at entry to ABEND, that is, when the dump was requested:
  • Access registers
  • Floating-point registers
  • General registers
  • Vector registers, vector status register, and vector mask register for a task that uses the Vector Facility
M P X D M P X M
RGN Allocated pages in the private area of each address space being dumped, including subpools 0 - 127, 129 - 132, 203 - 205, 213 - 215, 223 - 225, 229, 230, 236, 237, 244, 249, 251 - 255     D P X
SA or SAH Save area linkage information, program call linkage information, and backward trace of save areas M P X D M P X M
SPLS Storage allocated in user subpools 0 - 127, 129 - 132, 244, 251, and 252 for the task being dumped

Note that SUBPLST in the macro parameter list for a SYSABEND or SYSUDUMP dump overrides SPLS in the dump options list, but only for the dump being requested.

M P X D M P X M
SQA System queue area (SQA) allocated (that is, subpools 226, 239, 245, 247, 248)
The control blocks for the failing task in the SQA include:
  • Address space control block (ASCB)
  • Job scheduler address space control block (JSAB)
M P X M P X D M P X
SUBTASKS Storage for the task being dumped and program data for all of its subtasks M P X M P X D M
SUM Summary dump, see Default contents of summary dumps in ABEND dumps D M P X D M P X D M P X
SWA Scheduler work area (SWA); that is, subpools 236 and 237 M P X M P X D M P X
TRT System trace and generalized trace facility (GTF) trace, as available M P X D M P X  
  System trace, as available     D M P X