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PH35855: WEBSPHERE CONTROL REGION FAILED WITH ABEND 0C4 IN COM/IBM/WS390/XMEM/PROXY/XMEMPROXYCRCPPUTILITIES.QUEUEINBOUNDREQ

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APAR status

  • Closed as program error.

Error description

  • This was reported on WebSphere version 8.5.5.16.
    
    SVC dump of
    the Control Region shows LE traceback:
    Traceback:
    
     DSA Entry
    E Offset Statement Load Mod Program
    
     1
    XMemProxyRequestDetails::init(unsigned char*)
     Errors detected
    in STRUCTURE(Cde) at ASID(X'01ED') 9DD0D0:
     Located via
    STRUCTURE(Cdemajor) at ASID(X'01ED') 9DD0B0
     Bit CDCDEX is on
    but CDECDX is zero
     Errors detected in STRUCTURE(Cdemajor) at
    ASID(X'01ED') 9DD0B0:
     Locator CDCHAIN=009DD0D0 It may be
    damaged
     Chain processing terminated - ASID(X'01ED') 009DD0D0
    has already been processed
     +00000076
     2
    Java_com_ibm_ws390_xmem_proxy_XMemProxyCRCppUtilities_queueI
    
    +000001A4
     3 ZJ9SYM1 +00000000
     4 runCallInMethod
    
    ...
    
    Jdmpview of failing TCB shows Java stack frames:
     bp:
    0x000000002f892180 method: void com/ibm/ws390/xmem/proxy/XMemPro
    xyCRCppUtilities.queueInboundRequest(long, int, int, byte[],
    int, long, int, int) (Native Method)
     objects: <no objects in
    this frame>
     bp: 0x000000002f891ad0 method: void com/ibm/ws390/x
    mem/proxy/channel/XMemProxyCRInboundConnLink.flattenAndQueueRequ
    est() source: XMemProxyCRInboundConnLink.java:1131
     objects:
    0x877f63d8 0x8ef0da58 0x877f63d8
     bp: 0x000000002f891bb0
    method: void com/ibm/ws390/xmem/proxy/channel/XMemProxyCRInbound
    ConnLink.ready(com.ibm.wsspi.channel.framework.VirtualConnection
    ) source: XMemProxyCRInboundConnLink.java:459
     objects:
    0x8ef074b8 0x877f63d8 0x877f63d8
     bp: 0x000000002f891c70
    method: void com/ibm/ws/http/channel/inbound/impl/HttpInboundLin
    k.handleDiscrimination() source: HttpInboundLink.java:463
    
    objects: 0x8ef076d8
     bp: 0x000000002f891cf0 method: void com/ibm
    
    /ws/http/channel/inbound/impl/HttpInboundLink.handleNewRequest()
    source: HttpInboundLink.java:530
    

Local fix

  • n/a
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of IBM WebSphere Application      *
    *                  Server                                      *
    *                  V8.5.5 and V9.0                             *
    ****************************************************************
    * PROBLEM DESCRIPTION: WEBSPHERE CONTROL REGION FAILED WITH    *
    *                      ABEND 0C4 IN                            *
    *                      COM/IBM/WS390/XMEM/PROXY/XMEMPROXYCRCPP *
    *                      UT                                      *
    *                      ILITIES.QUEUEINBOUNDREQUEST             *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    When an inbound HTTP request is queued, it's possible for the
    connect link request data to be invalid causing an
    ABEND0C4/ABENDS0C4 in the WebSphere Controller Region.
    

Problem conclusion

  • Code has been modified to check that the inbound request data is
    valid before queuing the request.
    
    The fix for this APAR is targeted for inclusion in fix pack
    8.5.5.20 and 9.0.5.9. For more information, see 'Recommended
    Updates for WebSphere Application Server':
    https://www.ibm.com/support/pages/node/715553
    

Temporary fix

Comments

APAR Information

  • APAR number

    PH35855

  • 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

    2021-03-30

  • Closed date

    2021-07-07

  • Last modified date

    2021-07-07

  • 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

[{"Line of Business":{"code":"LOB36","label":"IBM Automation"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SS7K4U","label":"WebSphere Application Server for z\/OS"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"850"}]

Document Information

Modified date:
16 July 2021