PQ51451: RASSIGNALHANDLER2 DOESN'T FORWARD SIGNALS TO JVM AS EXPECTED WHEN IT RUNS IN CLIENT SIDE | |||||||||||||||||||||||||||||||||||||||||
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![]() 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 is sysrouted FROM one or more of the following: APAR is sysrouted TO one or more of the following: UQ58090 Modules/Macros
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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
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