Fixes are available
7.0.0.37: WebSphere Application Server V7.0 Fix Pack 37
8.5.5.5: WebSphere Application Server V8.5.5 Fix Pack 5
8.5.5.6: WebSphere Application Server V8.5.5 Fix Pack 6
8.0.0.11: WebSphere Application Server V8.0 Fix Pack 11
8.5.5.7: WebSphere Application Server V8.5.5 Fix Pack 7
7.0.0.39: WebSphere Application Server V7.0 Fix Pack 39
8.5.5.8: WebSphere Application Server V8.5.5 Fix Pack 8
8.0.0.12: WebSphere Application Server V8.0 Fix Pack 12
8.5.5.9: WebSphere Application Server V8.5.5 Fix Pack 9
7.0.0.41: WebSphere Application Server V7.0 Fix Pack 41
8.5.5.10: WebSphere Application Server V8.5.5 Fix Pack 10
8.5.5.11: WebSphere Application Server V8.5.5 Fix Pack 11
8.0.0.13: WebSphere Application Server V8.0 Fix Pack 13
7.0.0.43: WebSphere Application Server V7.0 Fix Pack 43
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
8.0.0.14: WebSphere Application Server V8.0 Fix Pack 14
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
7.0.0.45: WebSphere Application Server V7.0 Fix Pack 45
8.0.0.15: WebSphere Application Server V8.0 Fix Pack 15
7.0.0.45: Java SDK 1.6 SR16 FP60 Cumulative Fix for WebSphere Application Server
7.0.0.37: Java SDK 1.6 SR16 FP3 Cumulative Fix for WebSphere Application Server
7.0.0.39: Java SDK 1.6 SR16 FP7 Cumulative Fix for WebSphere Application Server
7.0.0.41: Java SDK 1.6 SR16 FP20 Cumulative Fix for WebSphere Application Server
7.0.0.43: Java SDK 1.6 SR16 FP41 Cumulative Fix for WebSphere Application Server
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
8.5.5.20: WebSphere Application Server V8.5.5.20
8.5.5.18: WebSphere Application Server V8.5.5 Fix Pack 18
8.5.5.19: WebSphere Application Server V8.5.5 Fix Pack 19
8.5.5.16: WebSphere Application Server V8.5.5 Fix Pack 16
8.5.5.21: WebSphere Application Server V8.5.5.21
APAR status
Closed as program error.
Error description
WebSphere on z/OS native code makes use of Authorized Pause service calls, associated with zWAS thread and work element structures. The PAUSE calls are made from the module BBO3PSE. The code path for freeing pause elements that are no longer needed, added after PM11492, only calls ieavdpe for servant address spaces. Customer observed high usage of SSD block for Pause in ESQA associated with controls. Code will be modified to call ieavdpe for control processes in addition.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of IBM WebSphere Application * * Server V8.0 and V8.5 * **************************************************************** * PROBLEM DESCRIPTION: ESQA storage fills up with SSD blocks * * because pause elements are being * * allocated but not freed. * **************************************************************** * RECOMMENDATION: * **************************************************************** WebSphere Application Server for z/OS Controller does not deallocate thread specific pause elements (PE) when the thread terminates. The thread specific PEs are the btcb_pet and btcb_acrt.acrt_pet. For each PE there is a control block in ESQA subpool 239. The control block contains an eyecatcher. The eyecatcher is "SSD". An example of storage that is leaked: E2E2C440 07F7B438 | SSD .7.. | 093A3120 00EB9880 02008780 00000000 | ......q...g..... | 00000000 80000000 00000000 00000000 | ................ | LENGTH(X'20')--All bytes contain X'00' The PAUSE calls are made from the module BBO3PSE.
Problem conclusion
Code has been modified to check for and deallocate the pause elements related to btcb_pet and btcb_acrt.acrt_pet if obtained by native threads. APAR PI31117 is currently targeted for inclusion in Fix Packs 8.0.0.11 and 8.5.5.5 of WebSphere Application Server. Sysroute APAR PI31541 will be used to deliver the fix in WebSphere Application Server Fix Pack 7.0.0.37. Please refer to the Recommended Updates page for delivery information: http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980 In addition, please refer to URL: http://www.ibm.com/support/docview.wss?rs=404&uid=swg27006970 for Fix Pack PTF information.
Temporary fix
Comments
APAR Information
APAR number
PI31117
Reported component name
WEBSPHERE FOR Z
Reported component ID
5655I3500
Reported release
850
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2014-12-08
Closed date
2014-12-15
Last modified date
2015-11-06
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
WEBSPHERE FOR Z
Fixed component ID
5655I3500
Applicable component levels
R850 PSY
UP
Document Information
Modified date:
28 April 2022