VM66867: Z/VM 7.4 CMS: FIX PACK - FEATURE 03 FIX 01

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• This APAR contains CMS service for z/VM version 7 release 4
  Feature 03 Fix 01.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: ALL USERS OF GETSHOPZ AND Z/CMS              *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  ****************************************************************
  * RECOMMENDATION: APPLY PTF                                    *
  ****************************************************************
  z/CMS does not enable user of Diagnose X'214' (Pending Page
  Release), which while not supported in a z/Architecture virtual
  machine in AMODE 64 for memory above 2G, is supported in such a
  virtual machine in AMODE 31 for memory below 2G. This limitation
  affects performance. The change fixes the issue by deleting two
  instructions (SAM64 and SAM31) that surround the Diagnose x'214'
  verification code during storage initialization.
  
  Some systems may protect lower numbered ports up to 1024.
  GetShopz will occasionally identify 1024 as a free port and
  attempt to use it. This results in exiting with no messages and
  no warnings in any logfile. If the first port does not work due
  to an access issue, GetShopz now tries to find a different port
  to connect through instead. This new port, if found, is saved in
  GLOBALV. If GetShopz cannot connect through a different port
  (none are available or user specified a bad port), then an error
  message and RC are displayed.
  
  GetShopz was incorrectly reconstructing certain files,
  particularly tersed SERVLINK files from older PTFs. The hash
  value of the final uploaded and detersed file would not match
  the hash value of the initial file on the workstation. The bug
  was fixed without any changes to how users interact with
  GetShopz.
  

Problem conclusion

• Problems identified in summary were resolved with code changes
  mentioned therein.
  

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:

  UM90543

Modules/Macros

• DMSINL   DMSLVLTB DMSZFRI  GSZUTILX 7VMCMS40
  

Fix information

• Fixed component name

  VM CMS

• Fixed component ID

  568411201

Applicable component levels

• R740 PSY UM90543

     UP25/07/30 P 2502

Fix is available

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