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IV56118: AT 7.1 TL 3, CALLING LONGJMP CAUSES SIGINT TO BE BLOCKED APPLIES TO AIX 7100-03

A fix is available

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • If a program calls setjmp/longjmp, it will not be
    possible to use Ctl-C to exit the program any more, since
    SIGINT will be blocked.
    

Local fix

  • Using _setjmp and _longjmp can avoid the issue.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:
    * Systems running the 7100-03 Technology Level with the
    * bos.rte.libc fileset below the 7.1.3.15 level.
    ****************************************************************
    * PROBLEM DESCRIPTION:
    * If a program calls setjmp/longjmp, it will not be
    * possible to use Ctl-C to exit the program any more, since
    * SIGINT will be blocked.
    ****************************************************************
    * RECOMMENDATION:
    * Install APAR IV56118.
    ****************************************************************
    

Problem conclusion

  • longjmp() and siglongjmp() restore the signal mask correctly.
    

Temporary fix

Comments

  • 7100-03 - use AIX APAR IV56118
    7100-04 - use AIX APAR IV57298
    

APAR Information

  • APAR number

    IV56118

  • Reported component name

    AIX V7.1

  • Reported component ID

    5765H4000

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    YesPE

  • HIPER

    NoHIPER

  • Submitted date

    2014-02-28

  • Closed date

    2014-03-20

  • Last modified date

    2016-05-10

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

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

    IV57298 U866413

Fix information

  • Fixed component name

    AIX V7.1

  • Fixed component ID

    5765H4000

Applicable component levels

  • R710 PSY U866413

       UP14/05/22 I 1000



Document information

More support for: AIX Enterprise Edition

Software version: 710

Operating system(s): AIX

Reference #: IV56118

Modified date: 10 May 2016