VM66151: IMPROVEMENT OF CP DUMP CONTENTS AND OTHER FIXES

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• VM65989 provided improvements for CP dumps created with the
  SNAPDUMP command.
  
  This APAR expands on these improvements by
  including certain PGMBKs in CP dumps, that would otherwise be
  omitted.  Other improvements to CP dump processing are included.
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users that generate z/VM CP dumps.           *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  ****************************************************************
  * RECOMMENDATION: APPLY PTF                                    *
  ****************************************************************
  This APAR addresses the following:
  
  (1) Depending on system settings, SYSTEM PGMBKs may not be
  included in CP dumps.  This causes problems with the SPCON
  macro of the VM Dump Tool.
  
  (2) If CP is running as a second level system with more than
  4 GB of storage and dump space is defined on VDISK, a
  SNAPDUMP can cause an ABENDHTT001 or ABENDSIT002 to occur,
  and system termination will fail with a 9276 disabled wait
  state.
  
  (3) HCPDMP savearea usage can produce misleading data, causing
  debugging problems.
  
  (4) If spool space for dump is on the first 65519 cylinders
  of an Extended Address Volume (EAV), a Fatal I/O error can
  occur when writing the dump.  This prevents the dump from
  being created.
  

Problem conclusion

• (1) PGMBK control blocks owned by SYSTEM are always included
  in dumps, which allows the SPCON macro in VM Dump Tool to work
  as expected.
  
  (2) This APAR cleans up 64 bit register usage in HCPDMP
  to avoid abends that may occur during SNAPDUMP on a second
  level system.
  
  (3) HCPDMP savearea usage is improved to provide better
  debugging information.
  
  (4) HCPDMP is updated to correctly compute the high cylinder
  number of the SPOOL space cylinders on an EAV device when a CP
  dump is being written to it.
  

Temporary fix

• *********
  * HIPER *
  *********
  FOR RELEASE VM/ESA CP/ESA R640 :
  PREREQ: VM65989
  CO-REQ: NONE
  IF-REQ: NONE
  FOR RELEASE VM/ESA CP/ESA R710 :
  PREREQ: NONE
  CO-REQ: NONE
  IF-REQ: NONE
  

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  UM35456 UM35457

Modules/Macros

• HCPDMP   HCPDSI   HCPSSA   HCPSSAGB SSASAVE
  

Fix information

• Fixed component name

  VM CP

• Fixed component ID

  568411202

Applicable component levels

• R640 PSY UM35456

     UP19/05/01 P 1901 ¢

• R710 PSY UM35457

     UP19/05/01 P 1902 ¢

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.