#126 QK scheduler working incorrectly

QP-C
closed
None
9
2016-04-13
2016-04-12
No

The QK scheduler in QP/C 5.6.2 works incorrectly.

One symptom is that upon the starup, QK no longer processes all events posted to AOs before QF_run(). Instead, QK processes only the highest-priority AO, and drops to the idle loop before processing all other AOs with events in their queues.

Discussion

  • Quantum Leaps

    Quantum Leaps - 2016-04-13
    • status: open --> closed
     
  • Quantum Leaps

    Quantum Leaps - 2016-04-13

    Further investigation shows that the QK scheduler has a serious bug introduced in QP/C 5.6.2. In an attempt to eliminate code repetition, the scheduler has been inadvertently altered, such that it scheduled only one AO (of the highest-priory at the time), instead of all AOs with prirority higher than the initial one.

    The bug has been fixed in QP/C 5.6.3. The previous release QP/C 5.6.2 has been deleted to avoid spreading the problem.

     


Anonymous

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