PK96986: WHEN DAEMON IS CONFIGURED TO RUN IN 64-BIT MODE, IT ABENDS WITH S978 RSN=00000004

6.1.0.29: Java SDK 1.5 SR11 Cumulative Fix for WebSphere Application Server
6.1.0.31: Java SDK 1.5 SR11 FP1 Cumulative Fix for WebSphere Application Server
6.1.0.33: Java SDK 1.5 SR12 FP1 Cumulative Fix for WebSphere
6.1.0.35: Java SDK 1.5 SR12 FP2 Cumulative Fix for WebSphere
6.1.0.37: Java SDK 1.5 SR12 FP3 Cumulative Fix for WebSphere
6.1.0.47: WebSphere Application Server V6.1 Fix Pack 47
6.1.0.39: Java SDK 1.5 SR12 FP4 Cumulative Fix for WebSphere Application Server
6.1.0.41: Java SDK 1.5 SR12 FP5 Cumulative Fix for WebSphere Application Server
6.1.0.43: Java SDK 1.5 SR13 Cumulative Fix for WebSphere Application Server
6.1.0.45: Java SDK 1.5 SR14 Cumulative Fix for WebSphere Application Server
6.1.0.47: Java SDK 1.5 SR16 Cumulative Fix for WebSphere Application Server
Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• When Daemon is converted to 64-bit mode, daemon may abend with
  S978 and rsncode=00000004:
  
  BBOO0033W Processing for signal 'SIGABND' (18) with
      abend=00978000 rsncode=00000004
      si_code='ABND_REAL'(170) si_errno=0
      si_addr=00000000 , in current thread (00000002 00000000).
      [The virtual storage area that the FREEMAIN macro tried to
      release is not on a doubleword boundary.]
  
  Traceback for the abending TCB:
  
  CEEOSIGG
  CELQHROD
  bbodasrx(ASR_Request::bbodasrr*)
  ASR_Request::process_asr_request(ASR_Request::bbodasrr*)
  ACR_ExecutionThread::RemoveAndProcessWork(ThreadCleanUp*)
  DaemonAsrWorkRoutine
  
  Systrace shows:
   SSRV   133          00000000  0420F903 00000148 7F07E06C
                                 007600FF
  *SVC      D 070C1000 815942E4  00000004 84000000 84978000
  
  The S978 abend might be followed by U4091:
  
  IEA995I SYMPTOM DUMP OUTPUT  631
          USER COMPLETION CODE=4091 REASON CODE=00000006
  

Local fix

• Change daemon to run in 31-bit mode.  Other servers can run in
  64-bit mode if desired.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application Server
  *                  V6.1.0                                      *
  ****************************************************************
  * PROBLEM DESCRIPTION: WebSphere Application Server for z/OS   *
  *                      daemon address space running in 64 bit  *
  *                      mode encounters a ABEND978/ABENDS978    *
  *                      reason code 4.                          *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  ABEND 978 reason code 4 occurs when trying to free the asr
  parameter list because the bbodasrx glue routine incorrectly
  copies the asr parameter into its local 31 bit storage and
  passes that address along when the bbodasrr_async flag is on.
  
  Traceback:
  DSA   Entry       E  Offset  Statement   Load Mod
  1     bbodasrx(ASR_Request::bbodasrr*)
                              +00000000              BBGDASR
  2     ASR_Request::process_asr_request(ASR_Request::bbodasrr*)
                              +000001A0              BBGDASR
  3     ACR_ExecutionThread::RemoveAndProcessWork(ThreadCleanUp*)
                              +00001C96              BBGBOA
  4     ACR_ExecutionRoutine
                              +000007DC              BBGBOA
  5     CELQPCMM    +00000E02              CELQLIB
  

Problem conclusion

• Changed bbodasrx to pass the address of the asr parameter list
  instead of making a copy of it when it is already below the
  bar and it is going to be freed asynchronously.
  
  APAR PK96986 is currently targeted for inclusion in Service
  Level (Fix Pack) 6.1.0.29 of WebSphere Application Server V6.1.
  
  Please refer to URL:
  //www.ibm.com/support/docview.wss?rs=404&uid=swg27006970
  for Fix Pack availability.
  

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

• R610 PSY UK53194

     UP10/01/15 P F001

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.