VM66854: Z/VM 7.4 CP: FIX PACK - FEATURE 02 FIX 01

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• This is Fix Pack 1 of Feature Pack 02 for z/VM 7.4.
  
  It contains fixes for the following problems:
  1. Error message HCPSWU2832E incorrect for OSH device
  2. IQG001 abend when CSCH takes too long
  3. Packet and Byte counters for EQDIO incorrect on Q VSWITCH
  4. QDIO throughput fields go to 0 in PERFKIT
  5. Traffic not flowing across Hipersockets guest LAN
  6. HCP3228I sometimes shows 0000 for device address
  7. Code was added to take a channel log on VQF002 abends.
  This log can be used by hardware service personnel to better
  debug QDIO errors while running under QIOASSIST.
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All Z/VM users of the IBM Z17 AND IBM        *
  *                 LINUXONE EMPEROR 5 SERVERS D/T9175           *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  ****************************************************************
  * RECOMMENDATION: APPLY PTF                                    *
  ****************************************************************
  This APAR contains post-GA fixes for the IBM Z17 ANDIBM LINUXONE
  EMPEROR 5 SERVERS D/T9175
  

Problem conclusion

• This APAR for z/VM 7.4 Fix Pack 0201 contains fixes for the
  following issues:
  1. Error message HCPSWU2832E incorrect for OSH device
  2. IQG001 abend when CSCH takes too long
  3. Packet and Byte counters for EQDIO incorrect on Q VSWITCH
  4. QDIO throughput fields go to 0 in PERFKIT
  5. Traffic not flowing across Hipersockets guest LAN
  6. HCP3228I sometimes shows 0000 for device address
  7. Code was added to take a channel log on VQF002 abends. This
  log can be used by hardware service personnel to better debug
  QDIO errors while running under QIOASSIST.
  

Temporary fix

• *********
  * HIPER *
  *********
  FOR RELEASE VM/ESA CP/ESA R740 :
  PREREQ: VM66824 VM66844
  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:

  UM90538

Modules/Macros

• HCPCPE   HCPCPL   HCPIQE   HCPIQG   HCPIQN   HCPIQP   HCPLAN
  HCPMES   HCPMESB  HCPVLC   HCPVQF   HCPVQH   7VMCPR40
  

Fix information

• Fixed component name

  VM CP CP

• Fixed component ID

  568411202

Applicable component levels

• R740 PSY UM90538

     UP25/06/30 P 2502 ¢

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.