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

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 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

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