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DY47672: IPL ENDS IN A DIABLED LOOP AFTER MSG0J62I

A fix is available

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APAR status

  • Closed as program error.

Error description

  • IPL hangs after message 0J62I due to a disabled loop.
    This occurs with an IPL Supervisor Parameters Command
    F00,$$A$SUPI,VPOOL=128K,VIO=128M,VSIZE=16G,NOLOG,IODEV=1023
    This only occurs with IODEV=1023, many devices to be added and
    a high value for VIO=.
    

Local fix

  • IPL with IODEV=1024.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All.                                         *
    ****************************************************************
    * PROBLEM DESCRIPTION: IPL hangs after message 0J62I           *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    IPL hangs after message 0J62I due to a disabled loop.
    This occurs due to a lot of devices aded with IODEV=1023 and a
    maximum size for VIO in the IPL Supervisor Parameters command.
    

Problem conclusion

  • An overlay of the IOTAB (used for IPL) causes an infinite loop.
    The IOTAB is now moved from x120000 to x160000 if IODEV=1023 is
    specified. This prevents the overlay with control information
    reserved for VIO and other control blocks.
    

Temporary fix

Comments

APAR Information

  • APAR number

    DY47672

  • Reported component name

    VSE/AF MACROS

  • Reported component ID

    5686CF906

  • Reported release

    52C

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2016-06-23

  • Closed date

    2016-07-04

  • Last modified date

    2016-07-22

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

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

    UD54193 DY47677

Modules/Macros

  • IJBIPL   MACIPLR4
    

Fix information

  • Fixed component name

    VSE/AF MACROS

  • Fixed component ID

    5686CF906

Applicable component levels

  • R52C PSY UD54193

       UP16/07/19 I 1000

Fix is available

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Document Information

Modified date:
11 December 2020