#2751: Thread dispatch via interrupt is broken at least on ARM and PowerPC
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Reporter: sebastian.huber | Owner: sebastian.huber
Type: defect | Status: new
Priority: normal | Milestone: 4.12
Component: SMP | Version: 4.11
Severity: critical | Keywords:
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The ARM and PowerPC interrupt epilogues call _Thread_Dispatch() with
interrupts disabled (counter example: SPARC).
On SMP configurations, since inter-processor interrupts set the thread
dispatch necessary indicator this prevents a thread dispatch notification
in post-switch handlers (which all run with interrupts disabled).
On all configurations, this is a serious issue for the interrupt latency.
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Ticket URL: <http://devel.rtems.org/ticket/2751>
RTEMS Project <http://www.rtems.org/>
RTEMS Project
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