Trying to POST a WAIT ECB in a different address space. I'm getting a 602
abend: "The target address space control block (ASCB) is incorrect."
Lots of doc exists about cross memory communication but not finding much about
the POST macro using its ASCB parameter (other than IBM authorized services).
If something else is available, I'm very happy to RTFM. Here's the scenario:
1) Started task A creates a name-token pair containing its ASCB and ECB
addresses (IEANTCR data sharing)
2) Started task A then WAITs on the ECB
3) Job B is started and retrieves the name-token pair (IEANTRT)
4) Job B MODESETs to supervisor, key zero
5) Job B issues a POST:
POST ECBtokn, ECB address from Token (Name-Token pair) +
ASCB=ASCBtokn, ASCB from Token (Name-Token pair) +
ERRET=PostErrR, +
LINKAGE=BRANCH, +
ECBKEY=0
ASCBtokn DS A ASCB of started task address space
ECBtokn DS A address of ECB in started task
6) Job B abends w/602:
"The target address space control block (ASCB) is incorrect."
LINKAGE=SVC and LINKAGE=SYSTEM were tried and returned the same abend.
Also, the List and Execute macro forms of POST were tried with the same 602
result. (List / Execute does an SVC call)
PSW AT TIME OF ERROR 040C1000 813CF198 ILC 2 INTC 0D
NO ACTIVE MODULE FOUND
NAME=UNKNOWN
DATA AT PSW 013CF192 - 00181610 0A0D96A0 20105860
AR/GR 0: 008FEA64/84000000 1: 00000000/84602000
2: 00000000/00000000 3: 00000000/008ECD64
4: 00000000/008ECD40 5: 00000000/201004E4
6: 00000000/008DBFC8 7: 00000000/00FA7300
8: 00000000/013CF5E0 9: 00000000/A0100000 -> Program B
A: 00000000/80000000 B: 00000000/A010041C -> ECB of A
C: 00000000/201002A0 D: 00000000/20100418 -> ASCB of A
E: 00000000/A0100226 F: 00000000/00000000
ASCBtokn contains x'00FA7000'
ECBtokn contains x'20100F20' (address of the ECB in the started task)
These values are correct; the name-token pair communication works.
Started task and job are both AMODE 31 RMODE ANY. System is z/OS 02.05.
Sometimes, IBM macro parameters want the address of the address of.
So, ASCB==A(ASCBTokn) was also tried with the same 602 abend result.
Salient WAIT code in started task A:
Wait ECB=ECBWTPT, Wait for another address space to +
LINKAGE=SYSTEM POST this ECB
ECBWTPT DC F'0' ECB for Wait-Post
Thoughts on what's not working?
A working example of POST macro w/ASCB parameter would be appreciated. Or CBT
tape, etc.
Thanks
Richard Zierdt
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