JR46197: TIGHT LOOP DUE TO STACK OVERFLOW CONDITION

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • CS/Linux becomes unavailable.  The system appears to be
    in a tight loop, consuming 99% of CPU. Diagnostics show a
    stack_overflow_condition that results in a program check.
    

Local fix

Problem summary

  • USERS AFFECTED:
    All users of the TN3270 Server feature.
    
    PROBLEM SUMMARY:
    A TN3270E client has issued a large number of SYSREQ keystrokes,
    hundreds of them, while in receive state waiting on data from
    the host application. When data is received, the TN3270 Server
    attempts to process all of those SYSREQs and exceeds the
    available stack space.
    

Problem conclusion

  • Internal processing has been modified to generate only one
    LUSTAT request to the host (which maps to a negative
    response to report the loss of the presentation space
    integrity) when the SYSREQ key is pressed multiple times on
    the tn3270 client.
    

Temporary fix

  • efix is now available. Contact Level/2 support for download
    instructions.
    

Comments

APAR Information

  • APAR number

    JR46197

  • Reported component name

    COMM SERV NT 6.

  • Reported component ID

    5639F2503

  • Reported release

    613

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-04-02

  • Closed date

    2013-04-02

  • Last modified date

    2013-04-02

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

    LI75282

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

Fix information

  • Fixed component name

    COMM SERV NT 6.

  • Fixed component ID

    5639F2503

Applicable component levels

  • R613 PSY

       



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Document information


More support for:

Communications Server for Windows

Software version:

613

Reference #:

JR46197

Modified date:

2013-04-02

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