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APAR (Authorized Program Analysis Report) |
Abstract
OSP-WAIT after trace task (SFTR) crashes
Error Description
Customer ran a trccnn with a buffer size of 160000 MB and went
inhibited and we could not get out of it. No commands like
wrksyssts, wrkdsksts, wrktrc, etc were able to be executed.
Problem Summary
****************************************************************
* PROBLEM: (MA46468) Licensed Program = 5770999 for i 7.1, *
* i 7.2, and i 7.3 *
* Crash/Hang Requiring an IPL to Recover *
****************************************************************
* USERS AFFECTED: All IBM i operating system users. *
****************************************************************
* RECOMMENDATION: Apply LIC PTF MF63810 for i 7.1. *
* Apply LIC PTF MF63811 for i 7.2. *
* Apply LIC PTF MF63812 for i 7.3. *
****************************************************************
Customer ran a trccnn with a buffer size of 160000 MB and the
system went inhibited and we could not get out of it. No
commands like wrksyssts, wrkdsksts, wrktrc, etc were able to be
executed.
Problem Conclusion
A trace task (SFTR) crashed with LIC log 0C00280 and was holding
a shared lock on the trace control block gate. This prevented
other tasks which access the trace control block from getting a
exclusive lock on the gate. This prevents jobs like wrksyssts,
wrkdsksts, and wrktrc from running.
The LIC Trace code was changed to release the shared lock, if an
exception occurs. Also, additional trace commands were changed
to use shared locking to allow wrksyssts like commands without
getting a exclusive gate lock.
Temporary Fix
*********
* HIPER *
*********
Comments
Circumvention
PTFs Available
R710 MF65852 1000
R720 MF63811 7290
R730 MF63812 7283
Affected Modules
Affected Publications
Summary Information
Status............................................ | CLOSED PER |
HIPER........................................... | Yes |
Component.................................. | 9400DG300 |
Failing Module.......................... | RCHMGR |
Reported Release................... | R710 |
Duplicate Of.............................. |
System i Support
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Document Information
Modified date:
03 April 2019