PQ67165: ABEND0C4 IN BBOOWORK WHEN STRESS TEST WITH MIN_SRS=8 | |||||||||||||||||||||||||||||||||||||||||
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![]() APAR status Closed as program error. Error description Customer was running a stress test on WebSphere service level W401400 and z/os 1.3. The use the tool LoadRunner to submit http requests from a browser. They had MIN_SRS=6 and it ran fine. When they experienced abends in the application server. The symtom information from the SVC dump is: Symptom Symptom data --------------- ------------- RIDS/BBOOWORK#L BBOOWORK#L RIDS/BBOOWORK BBOOWORK PIDS/5655A9801 5655A9801 AB/S00C4 00C4 RIDS/BBOOWORK#R BBOOWORK#R VALU/HE3E01018 E3E01018 REGS/09288 09288 . REGS/060A8 060A8 PRCS/00000004 00000004 VALU/CSERVICES SERVICES . The failing code pointed to a problem with cell pool usage. The initial cell pool size is 100. Apparently these were exhausted so the code tried to extend the cell pool, but the cell pools services are required to be run in key 0, but the WebSphere code is running in key 2, hence the failure. . Update (11/12): These symptoms have also been seen by another customer when they have set MIN_SRS=4 and MIN_SRS=6.Local fix None at this time, but L3 is working on a temporary patch until a more formal solution can be developed. This apar will be updated if that becomes available.Problem summary **************************************************************** * USERS AFFECTED: All users of WebSphere Application Server * * V4.0.1 for z/OS and OS/390 * **************************************************************** * PROBLEM DESCRIPTION: ABENDS0C4 reported in modules BBOOWORK, * * BBOOSRR, and BBOTOTS. * **************************************************************** * RECOMMENDATION: * **************************************************************** WebSphere internal users of BACB_CPOOLID and BACB_CPOOLID_2PAGE CPOOLs (bbo3bacb.mac) may receive ABEND0C4(s) if they cause the CPOOL to expand. A large number of the internal users of these CPOOLs are using LINKAGE(BRANCH) on the "CPOOL (GET) UNCOND" requests. If there are no more cells in the CPOOL then it will be expanded. The CPOOL expansion code requires Supervisor State and Key 0 for LINKAGE(BRANCH) users. The internal users of the above CPOOLs are usually in Key 2. The ABEND0C4 occurs in IGVCPEXT+288 -- trying to set an FRR (fails storing into PSA).Problem conclusion Internal users of BACB_CPOOLID and BACB_CPOOLID_2PAGE CPOOLs were changed to specify LINKAGE(SYSTEM) on the unconditional (UNCOND) CPOOL (GET) requests. CPOOL (GET) LINKAGE(SYSTEM) causes a PC invocation of the IGVCPEXT routine, only if the CPOOL needs to be expanded (the CPOOL (GET) routine will still be branch entered). The PC invocation of the IGVCPEXT routine removes the Key 0 requirement from the "CPOOL (GET) UNCOND" caller. The following publication was revised as a result of APAR PQ67165: ________________________________________________________________ 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 ________________________________________________________________ Chapter 15, pg. 418 (deleted) DC3 020B0001 Explanation: RunAs services were invoked in the server region but the Entry linkage dynamic area CPool obtain failed because the cpoolID is invalid. User Response: Contact the system administrator ________________________________________________________________ Chapter 15, pg. 418 (deleted) DC3 03020003 Explanation: IBM Internal Only User Response: Contact the IBM Support Center. ________________________________________________________________ Chapter 15, pg. 416 (deleted) DC3 0205000E Explanation: IBM Internal Only User Response: Contact the IBM Support Center. ________________________________________________________________ APAR PQ67165 is associated with SERVICE LEVEL W401406 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 #: PQ67165
IBM Group: Software Group
Modified date: Jan 4, 2003
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