IC63111: WIN32: ONSTAT IS RETURNING MAPVIEWFILEOFEX ERROR WHEN GLS_USEGLUIS SET IN THE ENVIRONMENT OF THE SERVER

APAR status

• Closed as program error.

Error description

• When using the default shmbase address for a Win32 server and
  setting GL_USEGLU in the evnironment where the instance is
  started, onstat will fail with a mapViewFileOfEx error:
  
  C:\Windows\system32>onstat -
  MapViewOfFileEx: w32ec=487 at nt_shm.c:767
  12:07:28  shmat: [22]: operating system error
  12:07:28  Client could not attach server shared memory segment,
  use IFX_XFER_SHM
  BASE.
  onstat: Cannot attach to shared memory. errno = 22
  
  This is because the 32-glu34.dll is loaded at 0x1000000.
  Changing the shared memory base address to a value bigger than
  0x1000000 + size resolves this problem.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All Windows users                                            *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * When the ICU is loaded by way of GL_USEGLU being set in the  *
  * environment, and the SHMBASE setting in the ONCONFIG file is *
  * set to its default value, the onstat utility will display an *
  * error message when it attempts to establish a connection to  *
  * the server. This occurs because the memory space used by the *
  * ICU DLL is overlapping with the shared memory segment.       *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Upgrade to IDS version 11.50.xC6 and above.                  *
  ****************************************************************
  

Problem conclusion

• Starting with IDS 11.50.xC6, the ICU DLL will be loaded with a
  
  different base address on Windows.
  

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

  IBM IDS ENTRP E

• Fixed component ID

  5724L2304

Applicable component levels

• RB15 PSY

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