#2811: More robust thread dispatching on SMP and ARM Cortex-M
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Reporter: sebastian.huber | Owner: sebastian.huber
Type: enhancement | Status: new
Priority: normal | Milestone: 4.12
Component: cpukit | Version: 4.11
Severity: normal | Resolution:
Keywords: |
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Comment (by Sebastian Huber <sebastian.huber@…>):
In [changeset:"84e6f15c828869eb7d293096cfcfa0563b5752b3/rtems"]:
{{{
#!CommitTicketReference repository="rtems"
revision="84e6f15c828869eb7d293096cfcfa0563b5752b3"
score: Robust thread dispatch
On SMP configurations, it is a fatal error to call blocking operating
system with interrupts disabled, since this prevents delivery of
inter-processor interrupts. This could lead to executing threads which
are not allowed to execute resulting in undefined behaviour.
The ARM Cortex-M port has a similar problem, since the interrupt state
is not a part of the thread context.
Update #2811.
}}}
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Ticket URL: <http://devel.rtems.org/ticket/2811#comment:11>
RTEMS Project <http://www.rtems.org/>
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