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MF63812 - OSP-WAIT after trace task (SFTR) crashes

PTF ( Program Temporary Fixes ) Cover letter


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Abstract

OSP-WAIT after trace task (SFTR) crashes


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
NONE



NOTICE:
-------
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APAR Error Description / Circumvention

-----------------------------------------------
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.

CORRECTION FOR APAR MA46468 :
-----------------------------
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.

CIRCUMVENTION FOR APAR MA46468 :
--------------------------------
None.


Activation Instructions


None.




Special Instructions


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Default Instructions

THIS PTF CAN BE APPLIED IMMEDIATE OR DELAYED.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
     NONE

Summary Information

System.............................. i
Models..............................
Release............................. V7R3M0
Licensed Program............... 5770999
APAR Fixed.......................... View details for APAR MA46468
Superseded by:...................... View fix details for PTF MF65647
Recompile........................... N
Library............................. QSYS
MRI Feature ........................ NONE
Cum Level........................... C7283730


System i Support

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Document information

More support for: i family

Software version: V7R3M0

Operating system(s): OS/400

Reference #: MF63812

Modified date: 20 July 2017