PQ51451: RASSIGNALHANDLER2 DOESN'T FORWARD SIGNALS TO JVM AS EXPECTED WHEN IT RUNS IN CLIENT SIDE

 A fix may be available

Obtain the fix for this APAR



APAR status
Closed as program error.

Error description
RasSignalHandler2 doesn't pass signals (such as SIGTERM, SIGINT,
SIGABRT) to JVM as expected when it runs in client side.
This prevents to take a JAVADUMP when IMWEBSRV / IMWIWM becomes
dormant.
Local fix
I got a special libjvm.so from Hursley Java Support which allows
me to take a JAVADUMP when needed by creating a special file in
/tmp directory.
Problem summary
****************************************************************
* USERS AFFECTED: All users of WebSphere Application Server    *
*                 V4.0 for z/OS and OS/390.                    *
****************************************************************
* PROBLEM DESCRIPTION: In a client, RasSignalHandler2 does not *
*                      forward signals to the JVM.             *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
RasSignalHandler2 doesn't pass signals (such as SIGTERM, SIGINT,
SIGABRT) to the JVM as expected when it runs in client side.
This prevents taking a JAVADUMP when IMWEBSRV / IMWIWM becomes
dormant.
Problem conclusion
Code has been changed to detect when running in a client and
no longer register for most signals, thus getting us out of
the way. The signals that the client will still register and
gather diagnostics for are SIGILL and SIGSEGV.
If someone else is already handling the signal, the client will
not register for the signal. RasSignalHandler2 in a client
will no longer attempt to call a previous signal handler for
these signals.

APAR PQ51451 is associated with SERVICE LEVEL W400044 of
WebSphere Application Server V4.0 for z/OS and OS/390.
Temporary fix Comments
APAR information
APAR number PQ51451
Reported component name WASKBASE
Reported component ID 5655A9801
Reported release 400
Status CLOSED PER
PE NoPE
HIPER NoHIPER
Submitted date 2001-08-16
Closed date 2001-10-05
Last modified date 2001-11-02

APAR is sysrouted FROM one or more of the following:

APAR is sysrouted TO one or more of the following:
UQ58090

Modules/Macros
BBOREXIT BBOUBINF        

Fix information
Fixed component name WASKBASE
Fixed component ID 5655A9801

Applicable component levels
R400 PSY UQ58090    UP01/10/16 P F110

  Fix is available
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Document Information


Product categories: Software > Application Servers > Distributed Application & Web Servers > WebSphere Application Server for z/OS
Operating system(s):
Software version: 400
Software edition:
Reference #: PQ51451
IBM Group: Software Group
Modified date: Nov 2, 2001