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MF63810 - OSP-WAIT after trace task (SFTR) crashes

PTF Cover Letter


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  REL  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


None.


Default Instructions

THIS PTF CAN BE APPLIED IMMEDIATE OR DELAYED.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
   MF60508      IPL-SRCC6004052 Trace initialization failed.
   MF55070      LIC-OTHER-SRCB6005121-UNPRED LIC TRACE STACK OVERRUN
   MF56758      LIC JOBS HUNG DUE TO A GATE WHICH IS HELD SHARED BY #RITOUCH
   MF55929      LIC-OTHER-INCORROUT DISK STG TRCCNN DOES NOT RETURN ALL ALLO

Summary Information

System..............................i
Models..............................
Release.............................V7R1M0
Licensed Program...............5770999
APAR Fixed..........................View details for APAR MA46468
Superseded by:......................View fix details for PTF MF65852
Recompile...........................N
Library.............................QSYS
MRI Feature ........................NONE
Cum Level...........................NONE


System i Support

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Document Information

Modified date:
20 July 2017