[RTEMS Project] #4923: FPU context init/switch not working well on more than 2 tasks on Cortex-Mx/ARMv7-M platform
RTEMS trac
trac at rtems.org
Fri Jul 7 14:19:47 UTC 2023
#4923: FPU context init/switch not working well on more than 2 tasks on Cortex-
Mx/ARMv7-M platform
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Reporter: kgardas | Owner: (none)
Type: defect | Status: new
Priority: normal | Milestone:
Component: arch/arm | Version:
Severity: major | Resolution:
Keywords: | Blocked By:
Blocking: |
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Comment (by Joel Sherrill):
Maybe the FPU context isn't properly initialized for this CPU variant. The
first context switch restore is handled special in _Thread_Handler. Easy
enough to break there and see what is actually being restored. If it's
wrong, then that's the culprit.
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Ticket URL: <http://devel.rtems.org/ticket/4923#comment:5>
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