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MF61916 - LIC-PASE JVM job end hangs for deadlock between two threads

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Abstract

LIC-PASE JVM job end hangs for deadlock between two threads


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

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



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APAR Error Description / Circumvention

-----------------------------------------------
Forced termination of a job running Java (for ENDJOB, ENDSBS,
etc.) may hang because of deadlock between the MI initial thread
that is/remains attached to PASE while waiting for all MI
secondary threads to end, and an MI secondary thread that waits
for all threads to detach from PASE.  ENDJOBABN is required to
end the job after deadlock occurs.

This condition has only been observed in jobs that start PASE in
an MI secondary thread and (later) attach to PASE in the MI
initial thread, so it may be an issue only for jobs that run the
J9 JVM.

CORRECTION FOR APAR MA45559 :
-----------------------------
Termination cleanup for PASE is changed to avoid waiting for
other threads to detach if the job is ending.

CIRCUMVENTION FOR APAR MA45559 :
--------------------------------
None.


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Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
   MF60266      LIC-PASE-INCORROUT Incorrect floating point attributes for P

Summary Information

System..............................i
Models..............................
Release.............................V7R2M0
Licensed Program...............5770999
APAR Fixed..........................View details for APAR MA45559
Superseded by:......................
Recompile...........................N
Library.............................QSYS
MRI Feature ........................NONE
Cum Level...........................C6306720


System i Support

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Document Information

Modified date:
13 June 2016