[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
Thu Jul 13 12:32:33 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 Sebastian Huber):
We were able to reproduce the issue. It is a problem in the FPU context
save/restore during interrupt processing. Under certain conditions, the
FPU context is restored from an uninitialized frame which could enable the
flush-to-zero configuration. I am currently quite busy. I will add it to
my TODO list, but it could be September/October.
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Ticket URL: <http://devel.rtems.org/ticket/4923#comment:7>
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