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| APAR (Authorized Program Analysis Report) |
Abstract
LIC-OTHER-WAIT RESIDENT STACKS WAIT DURING IASP ADDRESS COMPARE
ACTIVITY
Error Description
In the primary instance of this wait condition, SWA (Save While
Active) was running against IASP data.
Many jobs stuck waiting on IASP resident stacks. The resident
stacks are waiting on a SWA insert to complete. Due to memory
constraints the SWA insert tasks were waiting on the resident
stacks.
Service keywords:
resstackpool -i
SMSWAINSxx tasks
SmSaveWhileActiveNucleus
Problem Summary
In the primary instance of this wait condition, SWA (Save While
Active) was running against IASP data.
Many jobs stuck waiting on IASP resident stacks. The resident
stacks are waiting on a SWA insert to complete. Due to memory
constraints the SWA insert tasks were taking a page fault which
had to be looked up in the IASP permanent directory. Getting
the lock on a permanent directory page caused an address compare
to happen which is gets stuck waiting on the SWA stacks.
Service keywords:
resstackpool -i
SMSWAINSxx tasks
SmSaveWhileActiveNucleus
Problem Conclusion
We will avoid turning on the address compare flag for the IASP
permanent directory pages.
Temporary Fix
Comments
Circumvention
PTFs Available
R710 MF63096 
7192
R720 MF60030 
5310
Affected Modules
Affected Publications
Summary Information
| Status............................................ | CLOSED PER |
| HIPER........................................... | No |
| Component.................................. | 9400DG300 |
| Failing Module.......................... | RCHMGR |
| Reported Release................... | R720 |
| Duplicate Of.............................. |
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Document Information
Modified date:
28 July 2017