VM66236: NON CHPIDV GUEST RSTA CCW CAUSES SSI BROADCAST

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• A non-CHPIDV guest reset allegience CCW causes an unneccessary
  broadcast to other members of the SSI when the data indicates
  that a reserve is held elsewhere. This is unnecessary for
  a non-CHPIDV guest and the data from the X'44' CCW issued
  on the guest's system should be used as the final result.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All z/VM users of systems in an SSI.         *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  ****************************************************************
  * RECOMMENDATION: APPLY PTF                                    *
  ****************************************************************
  A non-CHPIDV guest reset allegience CCW, X'44',
  causes a broadcast to other members of the SSI
  when the data indicates that a reserve is held
  elsewhere.  This is unnecessary for a non-CHPIDV
  guest and the data from X'44' CCW issued on the
  guest's system should be used as the final result.
  

Problem conclusion

• CCW untranslation, HCPDUP, was modified to not broadcast to
  other members of the SSI for a reset allegience CCW issued
  by a non-CHPIDV guest.
  

Temporary fix

• FOR RELEASE VM/ESA CP/ESA R640 :
  PREREQ: VM66148
  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:

  UM35477 UM35478

Modules/Macros

• HCPDUP
  

Fix information

• Fixed component name

  VM CP

• Fixed component ID

  568411202

Applicable component levels

• R640 PSY UM35477

     UP19/06/19 P 2001

• R710 PSY UM35478

     UP19/06/19 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.