PK52986: STORAGE LEAK OF LARGE BUFFERS IN LE HEAP: 4640, 4848, 4968 AND 5064 BYTES IN SIZE. | |||||||||||||||||||||||||||||||||||||||
![]() |
|||||||||||||||||||||||||||||||||||||||
![]() APAR status Closed as program error. Error description The WebSphere for z/OS Controller address space is leaking buffers in the LE HEAP. Common large sizes are 4640, 4848, 4968 and 5064. A Heap Pool Trace was obtained. The common call stack that obtains these buffers is --- Timestamp: 2006/08/21 18:50:44.516519 Type: GET Cell Address: 46B52028 Cpuid: 00 Tcb: 006BBCF0 CALL NAME CALL ADDRESS CALL OFFSET CEEVGQTH 0B347D40 00000000 CredBucket::addCredential(CredKey*,C1C8BE650 000003EC SecurityManager::receiveInbound(ORB_1C8BFE58 0000878C ORB_Request::call_inbound_request_in1BBBC7D0 00000110 ORB_Request::process_inbound_request1BBBCE98 00000298 ORB_Request::comm_inbound_request(ac1BBBADA0 00000F08 ACR_ExecutionThread::ProcessInboundR1BB74278 000001A4 ACR_ExecutionThread::RemoveAndProces1BB82438 000006A2 ACR_ExecutionRoutine 1BB84110 000004FE CEEVROND 0B3504B8 00000000Local fix Problem summary **************************************************************** * USERS AFFECTED: All users of WebSphere Application Server * * V6.0.1 for z/OS * **************************************************************** * PROBLEM DESCRIPTION: An OutOfMemoryError is experienced in * * the controller region of WebSphere * * Application Server for z/OS with * * memory leaks in the LE HEAP of the * * following sizes: * * * * 4640, 4848, 4968 and 5064 * **************************************************************** * RECOMMENDATION: * **************************************************************** Addng a credential to the credential bucket updates the token if an LTPA token with the same key is already in the table. When this happens it updates the reference counts on all elements with the same key, but we did't decrement the reference counts on all elements appropriately when necessary. A HEAP pool trace would show storage obtains on these buffers from many callstacks similar to: Timestamp: 2006/08/21 18:50:44.516519 Type: GET Cell Address: 46B52028 Cpuid: 00 Tcb: 006BBCF0 CALL NAME CALL ADDRESS CALL OFFSET CEEVGQTH 0B347D40 00000000 CredBucket::addCredential(CredKey*,C1C8BE650 000003EC SecurityManager::receiveInbound(ORB_1C8BFE58 0000878C ORB_Request::call_inbound_request_in1BBBC7D0 00000110 ORB_Request::process_inbound_request1BBBCE98 00000298 ORB_Request::comm_inbound_request(ac1BBBADA0 00000F08 ACR_ExecutionThread::ProcessInboundR1BB74278 000001A4 ACR_ExecutionThread::RemoveAndProces1BB82438 000006A2Problem conclusion The reference counting has been adjusted so it will decrement all or just the LTPA token elements appropriately when sending a response. APAR PK52986 currently targeted for inclusion in Service Level (Fix Pack) 6.0.2.24 of WebSphere Application Server V6.0.1 for z/OS.Temporary fix Comments
APAR is sysrouted FROM one or more of the following: PK30248 APAR is sysrouted TO one or more of the following: UK31684 Modules/Macros Publications Referenced
|
Document Information |
Current web document: swg1PK52986.html
Product categories: Software > Application Servers >
Distributed Application & Web Servers > WebSphere Application
Server for z/OS
Operating system(s):
Software version: 601
Software edition:
Reference #: PK52986
IBM Group: Software Group
Modified date: Jan 3, 2008
(C) Copyright IBM Corporation 2000, 2009. All Rights Reserved.