IBM Support

VM66853: POST-GA FIXES FOR IBM Z17 AND LINUXONE 5 SUPPORT

A fix is available

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APAR status

  • Closed as program error.

Error description

  • This APAR contains post-GA fixes for the IBM Z17 and LinuxOne 5
    Support.
    
    This 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: 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 AND
    IBM LINUXONE EMPEROR 5 SERVERS D/T9175
    

Problem conclusion

  • This 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.
    

Temporary fix

  • *********
    * HIPER *
    *********
    FOR RELEASE VM/ESA CP/ESA R730 :
    PREREQ: VM66823 VM66742
    CO-REQ: NONE
    IF-REQ: NONE
    

Comments

APAR Information

  • APAR number

    VM66853

  • Reported component name

    VM CP CP

  • Reported component ID

    568411202

  • Reported release

    730

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2025-06-17

  • Closed date

    2025-06-24

  • Last modified date

    2025-07-18

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

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

    UM90539

Modules/Macros

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

Fix information

  • Fixed component name

    VM CP CP

  • Fixed component ID

    568411202

Applicable component levels

  • R730 PSY UM90539

       UP25/06/30 I 1000 ¢

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.

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Document Information

Modified date:
18 July 2025