PK38885: EXCEPTION FROM BBGBOA, ON STOPPING APP. SERVER | |||||||||||||||||||||||||||||||||||||||
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![]() APAR status Closed as program error. Error description 64 bit daemon, dmgr, nodeagent and two application servers (bbos001, bbos002). Stopped app. server bbos002. Got 0C4 symptom dump from bbos002. This also caused bbon001 to terminate with T dump and SVC dump (TCP/IP abend). Then stopped bbos001. Got 0C4 symptom dump. Later stopped all WAS processes. Then restarted bbon001. After bbon001 came up, both bbos001 and bbos002 started automatically. It is not necessary that 0C4 symptom dump will occur from each app. server. Sometimes it occurs only from one of them. The app. server which causes the 0C4 error, starts automatically on starting bbon001.Local fix Problem summary **************************************************************** * USERS AFFECTED: Users running WebSphere Application Server * * V6.1 for zOS in ND 64-bit mode. * **************************************************************** * PROBLEM DESCRIPTION: Intermittent error in 64bit server * * shutdown in BBGBOA in the form of an * * EC6 abend with CEE and SVC dumps. * **************************************************************** * RECOMMENDATION: * **************************************************************** In a 64-bit WebSphere Application Server for zOS running a heavy transaction workload, with DB2, informix, and an XA resource, intermittent EC6 abends might occur in server shutdown. The server can be stopped but it can bring down the node agent and stopping subsequent servers likewise fail with an 0C4. The servers come down but not very well and they each create SVC dumps. The node agent can be restarted without problem but in general the shutdown creates dumps. The EC6 abend is rooted in an incorrect interface in glue module bbgqloca.cpp. It sets the high order bit in parameter #3 before calling the PL/X code and then if data is passed back it uses that address for the return data. The code did not first strip off the high order bit.Problem conclusion Glue module bbgqloca.cpp was updated to reset the high order bit in the third entry in the parameter list. that high order bit is significant in 64-bit mode and therefore creates an improper address when the code tries to use that field as a legitimate pointer. APAR PK38885 is currently targeted for inclusion in Service Level (Fix Pack) 6.1.0.8 of WebSphere Application Server V6.1 for z/OS.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 Publications Referenced
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Document Information |
Current web document: swg1PK38885.html
Product categories: Software > Application Servers >
Distributed Application & Web Servers > WebSphere Application
Server for z/OS
Operating system(s):
Software version: 610
Software edition:
Reference #: PK38885
IBM Group: Software Group
Modified date: Jun 5, 2007
(C) Copyright IBM Corporation 2000, 2009. All Rights Reserved.