PQ73311: THIS APAR ADDRESSES DEFECTS IN WEBSPHERE APPLICATION SERVER V4.0.1 FOR Z/OS AND OS/390. | |||||||||||||||||||||||||||||||||||||||||
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![]() APAR status Closed as program error. Error description This APAR addresses defects in WebSphere Application Server V4.0.1 for z/OS and OS/390.Local fix Problem summary **************************************************************** * USERS AFFECTED: All users of WebSphere Application Server * * V4.0.1 for z/OS and OS/390 * **************************************************************** * PROBLEM DESCRIPTION: APAR PQ73311 addresses various problems * * in WebSphere Application Server V4.0.1 * * for z/OS and OS/390. * **************************************************************** * RECOMMENDATION: * **************************************************************** APAR PQ73311 addresses the following problems in WebSphere Application Server V4.0.1 for z/OS and OS/390: (MD16275) There is a need to improve diagnostics for time outs. An IPCS command is needed to display relevent times in the flow of Request from the control region through dispatch in the server region. This will aid customers in determining why their requests have been timed out. (MD16490) When detailed tracing (TRACEDETAIL or TRACESPECIFIC) is turned on in the Systems Management (SM) server, periodic failures of the server occur. The typical symptoms are that the failure occurs during application deployment, with the following message appearing in the SYSPRINT for the SM server: BBOU0036W Processing for signal 'SIGABND' (18) with abend=00EC3000 rsncode=000C0001 si_code='ABND_REAL'(170) si_errno=0 si_addr=00000000 , in current thread The SM server region takes as many as three SVC dumps (the first for ABEND IN PC ROUTINE BBO3CTXP), then restarts. If the deployment is via the SM EUI, the SM EUI connection to the server fails with message: BBON0151E CORBA system exception, server still connected. After all this, the SM server restarts and normal work can continue. The problem will not reoccur until after the next conversation activation completes, so the failed application deploy can be redone. A line of code in bboitrc.h which was gathering information to put in IM trace entries was causing the failure. This code was running whenever ANY detailed tracing was being done - even if not an IM trace (TRACEDETAIL=(5)), so any detailed trace could lead to the failure. (MD16622) A C++ subclass added an attribute to the Object but did not override the "new/delete" operators of its parents. When the new attribute is set it reaches beyond the allocated object storage and causes a storage overlay. This overlay caused LE Heap check services to fail (a zero was stored into the free chain).Problem conclusion APAR PQ73311 provides the following problem resolution: (MD16275) Code has been modified in the ORB_Request (bbooorbr.h) to gather timestamps for Requests on entry and exit from the WAS address spaces. An additional option was added to the IPCS command, CBDATA, to provide summary information as it relates to the Request, given a TCB address. The new option is "TCB(tcbaddress)". An example invocation is: "VERBX CBDATA 'ASID(3B) TCB(9DFE88)'". (MD16490) The line of code in bboitrc.h was removed and the value it was gathering (Context value) will no longer be included in the IM detailed trace. (MD16622) Code has been modified in TimerDaemonThread (bbootmot.h), subclass of ACR_ExecutionThread (bbooacrt.h), to implement the operator new(size_t size) and operator delete(void *elementPtr) methods. This will ensure that the correct size of the TimerDaemonThread object is used on its storage allocation. The following publication was revised as a result of APAR PQ73311: ________________________________________________________________ WebSphere Application Server V4.0.1 for z/OS and OS/390 Messages and Diagnosis GA22-7837-06 ________________________________________________________________ This APAR requires changes to documentation. NOTE: Periodically, we refresh the documentation on our Web site, so the changes might have been made before you read this text. To access the latest on-line documentation, go to the product library page at: http://www.ibm.com/software/webservers/appserv/zos_os390 /library.html ________________________________________________________________ Appendix A, pg. 456 (append) ASID(asid-number) TCB(tcb_address) Formats Request summary information for a task. Displays Request summary information. ______________________________________________________________ APAR PQ73311 is associated with SERVICE LEVEL W401504 of WebSphere Application Server V4.0.1 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: 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: 401
Software edition:
Reference #: PQ73311
IBM Group: Software Group
Modified date: Jun 5, 2003
(C) Copyright IBM Corporation 2000, 2006. All Rights Reserved.